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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some samsung "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
* Copyright (c) 2010 Don Prince <[email protected]>
*
* This driver supports several HID devices:
*
* [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
* various hid report fixups for different variants.
*
* [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
* several key mappings used from the consumer usage page
* deviate from the USB HUT 1.12 standard.
*/
/*
*/
#include <linux/device.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* There are several variants for 0419:0001:
*
* 1. 184 byte report descriptor
* Vendor specific report #4 has a size of 48 bit,
* and therefore is not accepted when inspecting the descriptors.
* As a workaround we reinterpret the report as:
* Variable type, count 6, size 8 bit, log. maximum 255
* The burden to reconstruct the data is moved into user space.
*
* 2. 203 byte report descriptor
* Report #4 has an array field with logical range 0..18 instead of 1..15.
*
* 3. 135 byte report descriptor
* Report #4 has an array field with logical range 0..17 instead of 1..14.
*
* 4. 171 byte report descriptor
* Report #3 has an array field with logical range 0..1 instead of 1..3.
*/
static inline void samsung_irda_dev_trace(struct hid_device *hdev,
unsigned int rsize)
{
hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
rsize);
}
static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
rdesc[182] == 0x40) {
samsung_irda_dev_trace(hdev, 184);
rdesc[176] = 0xff;
rdesc[178] = 0x08;
rdesc[180] = 0x06;
rdesc[182] = 0x42;
} else
if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
rdesc[194] == 0x25 && rdesc[195] == 0x12) {
samsung_irda_dev_trace(hdev, 203);
rdesc[193] = 0x1;
rdesc[195] = 0xf;
} else
if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
rdesc[126] == 0x25 && rdesc[127] == 0x11) {
samsung_irda_dev_trace(hdev, 135);
rdesc[125] = 0x1;
rdesc[127] = 0xe;
} else
if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
rdesc[162] == 0x25 && rdesc[163] == 0x01) {
samsung_irda_dev_trace(hdev, 171);
rdesc[161] = 0x1;
rdesc[163] = 0x3;
}
return rdesc;
}
#define samsung_kbd_mouse_map_key_clear(c) \
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
return 0;
dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
usage->hid & HID_USAGE);
switch (usage->hid & HID_USAGE) {
/* report 2 */
case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
default:
return 0;
}
return 1;
}
static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
return rdesc;
}
static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
int ret = 0;
if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
ret = samsung_kbd_mouse_input_mapping(hdev,
hi, field, usage, bit, max);
return ret;
}
static int samsung_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
unsigned int cmask = HID_CONNECT_DEFAULT;
if (!hid_is_usb(hdev))
return -EINVAL;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
if (hdev->rsize == 184) {
/* disable hidinput, force hiddev */
cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
HID_CONNECT_HIDDEV_FORCE;
}
}
ret = hid_hw_start(hdev, cmask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
return 0;
err_free:
return ret;
}
static const struct hid_device_id samsung_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
{ }
};
MODULE_DEVICE_TABLE(hid, samsung_devices);
static struct hid_driver samsung_driver = {
.name = "samsung",
.id_table = samsung_devices,
.report_fixup = samsung_report_fixup,
.input_mapping = samsung_input_mapping,
.probe = samsung_probe,
};
module_hid_driver(samsung_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-samsung.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for UC-Logic devices not fully compliant with HID standard
* - original and fixed report descriptors
*
* Copyright (c) 2010-2017 Nikolai Kondrashov
* Copyright (c) 2013 Martin Rusko
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include "hid-uclogic-rdesc.h"
#include <linux/slab.h>
#include <asm/unaligned.h>
/* Fixed WP4030U report descriptor */
__u8 uclogic_rdesc_wp4030u_fixed_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xB8, 0x0B, /* Physical Maximum (3000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_wp4030u_fixed_size =
sizeof(uclogic_rdesc_wp4030u_fixed_arr);
/* Fixed WP5540U report descriptor */
__u8 uclogic_rdesc_wp5540u_fixed_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x7C, 0x15, /* Physical Maximum (5500), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_wp5540u_fixed_size =
sizeof(uclogic_rdesc_wp5540u_fixed_arr);
/* Fixed WP8060U report descriptor */
__u8 uclogic_rdesc_wp8060u_fixed_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x40, 0x1F, /* Physical Maximum (8000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_wp8060u_fixed_size =
sizeof(uclogic_rdesc_wp8060u_fixed_arr);
/* Fixed WP1062 report descriptor */
__u8 uclogic_rdesc_wp1062_fixed_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x01, /* Input (Constant), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xB7, 0x19, /* Physical Maximum (6583), */
0x26, 0x6E, 0x33, /* Logical Maximum (13166), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_wp1062_fixed_size =
sizeof(uclogic_rdesc_wp1062_fixed_arr);
/* Fixed PF1209 report descriptor */
__u8 uclogic_rdesc_pf1209_fixed_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0xE0, 0x2E, /* Physical Maximum (12000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x28, 0x23, /* Physical Maximum (9000), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_pf1209_fixed_size =
sizeof(uclogic_rdesc_pf1209_fixed_arr);
/* Fixed PID 0522 tablet report descriptor, interface 0 (stylus) */
__u8 uclogic_rdesc_twhl850_fixed0_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x01, /* Report Count (1), */
0x09, 0x32, /* Usage (In Range), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x40, 0x1F, /* Physical Maximum (8000), */
0x26, 0x00, 0x7D, /* Logical Maximum (32000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x88, 0x13, /* Physical Maximum (5000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_twhl850_fixed0_size =
sizeof(uclogic_rdesc_twhl850_fixed0_arr);
/* Fixed PID 0522 tablet report descriptor, interface 1 (mouse) */
__u8 uclogic_rdesc_twhl850_fixed1_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x16, 0x00, 0x80, /* Logical Minimum (-32768), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_twhl850_fixed1_size =
sizeof(uclogic_rdesc_twhl850_fixed1_arr);
/* Fixed PID 0522 tablet report descriptor, interface 2 (frame buttons) */
__u8 uclogic_rdesc_twhl850_fixed2_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x03, /* Report ID (3), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x14, /* Logical Minimum (0), */
0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x18, /* Usage Minimum (None), */
0x29, 0xFF, /* Usage Maximum (FFh), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x06, /* Report Count (6), */
0x80, /* Input, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_twhl850_fixed2_size =
sizeof(uclogic_rdesc_twhl850_fixed2_arr);
/* Fixed TWHA60 report descriptor, interface 0 (stylus) */
__u8 uclogic_rdesc_twha60_fixed0_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x09, /* Report ID (9), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x01, /* Input (Constant), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x27, 0x3F, 0x9C,
0x00, 0x00, /* Logical Maximum (39999), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x6A, 0x18, /* Physical Maximum (6250), */
0x26, 0xA7, 0x61, /* Logical Maximum (24999), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_twha60_fixed0_size =
sizeof(uclogic_rdesc_twha60_fixed0_arr);
/* Fixed TWHA60 report descriptor, interface 1 (frame buttons) */
__u8 uclogic_rdesc_twha60_fixed1_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x05, /* Report ID (5), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x01, /* Input (Constant), */
0x95, 0x0C, /* Report Count (12), */
0x19, 0x3A, /* Usage Minimum (KB F1), */
0x29, 0x45, /* Usage Maximum (KB F12), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0C, /* Report Count (12), */
0x19, 0x68, /* Usage Minimum (KB F13), */
0x29, 0x73, /* Usage Maximum (KB F24), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_twha60_fixed1_size =
sizeof(uclogic_rdesc_twha60_fixed1_arr);
/* Fixed report descriptor template for (tweaked) v1 pen reports */
const __u8 uclogic_rdesc_v1_pen_template_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x07, /* Report ID (7), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x27, UCLOGIC_RDESC_PEN_PH(X_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(X_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x27, UCLOGIC_RDESC_PEN_PH(Y_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(Y_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x27, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM),
/* Logical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_v1_pen_template_size =
sizeof(uclogic_rdesc_v1_pen_template_arr);
/* Fixed report descriptor template for (tweaked) v2 pen reports */
const __u8 uclogic_rdesc_v2_pen_template_arr[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x08, /* Report ID (8), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x01, /* Report Count (1), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x75, 0x18, /* Report Size (24), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x27, UCLOGIC_RDESC_PEN_PH(X_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(X_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x27, UCLOGIC_RDESC_PEN_PH(Y_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(Y_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x75, 0x10, /* Report Size (16), */
0x27, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM),
/* Logical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0x54, /* Unit Exponent (0), */
0x65, 0x14, /* Unit (Degrees), */
0x35, 0xC4, /* Physical Minimum (-60), */
0x45, 0x3C, /* Physical Maximum (60), */
0x15, 0xC4, /* Logical Minimum (-60), */
0x25, 0x3C, /* Logical Maximum (60), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x09, 0x3D, /* Usage (X Tilt), */
0x09, 0x3E, /* Usage (Y Tilt), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_v2_pen_template_size =
sizeof(uclogic_rdesc_v2_pen_template_arr);
/*
* Expand to the contents of a generic frame buttons report descriptor.
*
* @_id: The report ID to use.
* @_size: Size of the report to pad to, including report ID, bytes.
*/
#define UCLOGIC_RDESC_FRAME_BUTTONS_BYTES(_id, _size) \
0x05, 0x01, /* Usage Page (Desktop), */ \
0x09, 0x07, /* Usage (Keypad), */ \
0xA1, 0x01, /* Collection (Application), */ \
0x85, (_id), /* Report ID (_id), */ \
0x14, /* Logical Minimum (0), */ \
0x25, 0x01, /* Logical Maximum (1), */ \
0x75, 0x01, /* Report Size (1), */ \
0x05, 0x0D, /* Usage Page (Digitizer), */ \
0x09, 0x39, /* Usage (Tablet Function Keys), */ \
0xA0, /* Collection (Physical), */ \
0x09, 0x44, /* Usage (Barrel Switch), */ \
0x95, 0x01, /* Report Count (1), */ \
0x81, 0x02, /* Input (Variable), */ \
0x05, 0x01, /* Usage Page (Desktop), */ \
0x09, 0x30, /* Usage (X), */ \
0x09, 0x31, /* Usage (Y), */ \
0x95, 0x02, /* Report Count (2), */ \
0x81, 0x02, /* Input (Variable), */ \
0x95, 0x15, /* Report Count (21), */ \
0x81, 0x01, /* Input (Constant), */ \
0x05, 0x09, /* Usage Page (Button), */ \
0x19, 0x01, /* Usage Minimum (01h), */ \
0x29, 0x0A, /* Usage Maximum (0Ah), */ \
0x95, 0x0A, /* Report Count (10), */ \
0x81, 0x02, /* Input (Variable), */ \
0xC0, /* End Collection, */ \
0x05, 0x01, /* Usage Page (Desktop), */ \
0x09, 0x05, /* Usage (Gamepad), */ \
0xA0, /* Collection (Physical), */ \
0x05, 0x09, /* Usage Page (Button), */ \
0x19, 0x01, /* Usage Minimum (01h), */ \
0x29, 0x03, /* Usage Maximum (03h), */ \
0x95, 0x03, /* Report Count (3), */ \
0x81, 0x02, /* Input (Variable), */ \
0x95, ((_size) * 8 - 45), \
/* Report Count (padding), */ \
0x81, 0x01, /* Input (Constant), */ \
0xC0, /* End Collection, */ \
0xC0 /* End Collection */
/* Fixed report descriptor for (tweaked) v1 frame reports */
const __u8 uclogic_rdesc_v1_frame_arr[] = {
UCLOGIC_RDESC_FRAME_BUTTONS_BYTES(UCLOGIC_RDESC_V1_FRAME_ID, 8)
};
const size_t uclogic_rdesc_v1_frame_size =
sizeof(uclogic_rdesc_v1_frame_arr);
/* Fixed report descriptor for (tweaked) v2 frame button reports */
const __u8 uclogic_rdesc_v2_frame_buttons_arr[] = {
UCLOGIC_RDESC_FRAME_BUTTONS_BYTES(UCLOGIC_RDESC_V2_FRAME_BUTTONS_ID,
12)
};
const size_t uclogic_rdesc_v2_frame_buttons_size =
sizeof(uclogic_rdesc_v2_frame_buttons_arr);
/* Fixed report descriptor for (tweaked) v2 frame touch ring reports */
const __u8 uclogic_rdesc_v2_frame_touch_ring_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_V2_FRAME_TOUCH_ID,
/* Report ID (TOUCH_ID), */
0x14, /* Logical Minimum (0), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x09, 0x01, /* Usage (01h), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x07, /* Report Count (7), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x0A, 0xFF, 0xFF, /* Usage (FFFFh), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x38, /* Usage (Wheel), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x0B, /* Logical Maximum (11), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x2E, /* Report Count (46), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_v2_frame_touch_ring_size =
sizeof(uclogic_rdesc_v2_frame_touch_ring_arr);
/* Fixed report descriptor for (tweaked) v2 frame touch strip reports */
const __u8 uclogic_rdesc_v2_frame_touch_strip_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_V2_FRAME_TOUCH_ID,
/* Report ID (TOUCH_ID), */
0x14, /* Logical Minimum (0), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x09, /* Usage Page (Button), */
0x09, 0x01, /* Usage (01h), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x07, /* Report Count (7), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x0A, 0xFF, 0xFF, /* Usage (FFFFh), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x38, /* Usage (Wheel), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x07, /* Logical Maximum (7), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x2E, /* Report Count (46), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_v2_frame_touch_strip_size =
sizeof(uclogic_rdesc_v2_frame_touch_strip_arr);
/* Fixed report descriptor for (tweaked) v2 frame dial reports */
const __u8 uclogic_rdesc_v2_frame_dial_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_V2_FRAME_DIAL_ID,
/* Report ID (DIAL_ID), */
0x14, /* Logical Minimum (0), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x09, /* Usage Page (Button), */
0x09, 0x01, /* Usage (01h), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x06, /* Report Count (6), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x0A, 0xFF, 0xFF, /* Usage (FFFFh), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x38, /* Usage (Wheel), */
0x95, 0x01, /* Report Count (1), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x2E, /* Report Count (46), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_v2_frame_dial_size =
sizeof(uclogic_rdesc_v2_frame_dial_arr);
const __u8 uclogic_ugee_v2_probe_arr[] = {
0x02, 0xb0, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const size_t uclogic_ugee_v2_probe_size = sizeof(uclogic_ugee_v2_probe_arr);
const int uclogic_ugee_v2_probe_endpoint = 0x03;
/* Fixed report descriptor template for UGEE v2 pen reports */
const __u8 uclogic_rdesc_ugee_v2_pen_template_arr[] = {
0x05, 0x0d, /* Usage Page (Digitizers), */
0x09, 0x01, /* Usage (Digitizer), */
0xa1, 0x01, /* Collection (Application), */
0x85, 0x02, /* Report ID (2), */
0x09, 0x20, /* Usage (Stylus), */
0xa1, 0x00, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x35, 0x00, /* Physical Minimum (0), */
0xa4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0x0d, /* Unit Exponent (-3), */
0x27, UCLOGIC_RDESC_PEN_PH(X_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(X_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x27, UCLOGIC_RDESC_PEN_PH(Y_LM),
/* Logical Maximum (PLACEHOLDER), */
0x47, UCLOGIC_RDESC_PEN_PH(Y_PM),
/* Physical Maximum (PLACEHOLDER), */
0x81, 0x02, /* Input (Variable), */
0xb4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x45, 0x00, /* Physical Maximum (0), */
0x27, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM),
/* Logical Maximum (PLACEHOLDER), */
0x75, 0x0D, /* Report Size (13), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x09, 0x3d, /* Usage (X Tilt), */
0x35, 0xC3, /* Physical Minimum (-61), */
0x45, 0x3C, /* Physical Maximum (60), */
0x15, 0xC3, /* Logical Minimum (-61), */
0x25, 0x3C, /* Logical Maximum (60), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x3e, /* Usage (Y Tilt), */
0x35, 0xC3, /* Physical Minimum (-61), */
0x45, 0x3C, /* Physical Maximum (60), */
0x15, 0xC3, /* Logical Minimum (-61), */
0x25, 0x3C, /* Logical Maximum (60), */
0x81, 0x02, /* Input (Variable), */
0xc0, /* End Collection, */
0xc0, /* End Collection */
};
const size_t uclogic_rdesc_ugee_v2_pen_template_size =
sizeof(uclogic_rdesc_ugee_v2_pen_template_arr);
/* Fixed report descriptor template for UGEE v2 frame reports (buttons only) */
const __u8 uclogic_rdesc_ugee_v2_frame_btn_template_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_V1_FRAME_ID,
/* Report ID, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
UCLOGIC_RDESC_FRAME_PH_BTN,
/* Usage Maximum (PLACEHOLDER), */
0x95, 0x0A, /* Report Count (10), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x46, /* Report Count (70), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_v2_frame_btn_template_size =
sizeof(uclogic_rdesc_ugee_v2_frame_btn_template_arr);
/* Fixed report descriptor template for UGEE v2 frame reports (dial) */
const __u8 uclogic_rdesc_ugee_v2_frame_dial_template_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_V1_FRAME_ID,
/* Report ID, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
UCLOGIC_RDESC_FRAME_PH_BTN,
/* Usage Maximum (PLACEHOLDER), */
0x95, 0x0A, /* Report Count (10), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x06, /* Report Count (6), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x38, /* Usage (Wheel), */
0x95, 0x01, /* Report Count (1), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_v2_frame_dial_template_size =
sizeof(uclogic_rdesc_ugee_v2_frame_dial_template_arr);
/* Fixed report descriptor template for UGEE v2 frame reports (mouse) */
const __u8 uclogic_rdesc_ugee_v2_frame_mouse_template_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x05, 0x01, /* Usage Page (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x02, /* Usage Maximum (02h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x06, /* Report Count (6), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Generic Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x02, /* Report Count (2), */
0x16, 0x00, 0x80, /* Logical Minimum (-32768), */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_v2_frame_mouse_template_size =
sizeof(uclogic_rdesc_ugee_v2_frame_mouse_template_arr);
/* Fixed report descriptor template for UGEE v2 battery reports */
const __u8 uclogic_rdesc_ugee_v2_battery_template_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, UCLOGIC_RDESC_UGEE_V2_BATTERY_ID,
/* Report ID, */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x84, /* Usage Page (Power Device), */
0x05, 0x85, /* Usage Page (Battery System), */
0x09, 0x65, /* Usage Page (AbsoluteStateOfCharge), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xff, 0x00, /* Logical Maximum (255), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x44, /* Usage Page (Charging), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x07, /* Report Count (7), */
0x81, 0x01, /* Input (Constant), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x07, /* Report Count (7), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_v2_battery_template_size =
sizeof(uclogic_rdesc_ugee_v2_battery_template_arr);
/* Fixed report descriptor for Ugee EX07 frame */
const __u8 uclogic_rdesc_ugee_ex07_frame_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x06, /* Report ID (6), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x75, 0x01, /* Report Size (1), */
0x19, 0x03, /* Usage Minimum (03h), */
0x29, 0x06, /* Usage Maximum (06h), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x1A, /* Report Count (26), */
0x81, 0x03, /* Input (Constant, Variable), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x02, /* Usage Maximum (02h), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_ex07_frame_size =
sizeof(uclogic_rdesc_ugee_ex07_frame_arr);
/* Fixed report descriptor for Ugee G5 frame controls */
const __u8 uclogic_rdesc_ugee_g5_frame_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x06, /* Report ID (6), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x05, 0x01, /* Usage Page (Desktop), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x05, /* Usage Maximum (05h), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x0A, 0xFF, 0xFF, /* Usage (FFFFh), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x0B, /* Report Count (11), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x02, /* Report Size (2), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_ugee_g5_frame_size =
sizeof(uclogic_rdesc_ugee_g5_frame_arr);
/* Fixed report descriptor for XP-Pen Deco 01 frame controls */
const __u8 uclogic_rdesc_xppen_deco01_frame_arr[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x07, /* Usage (Keypad), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x06, /* Report ID (6), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x39, /* Usage (Tablet Function Keys), */
0xA0, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x08, /* Usage Maximum (08h), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x15, /* Report Count (21), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
const size_t uclogic_rdesc_xppen_deco01_frame_size =
sizeof(uclogic_rdesc_xppen_deco01_frame_arr);
/**
* uclogic_rdesc_template_apply() - apply report descriptor parameters to a
* report descriptor template, creating a report descriptor. Copies the
* template over to the new report descriptor and replaces every occurrence of
* the template placeholders, followed by an index byte, with the value from the
* parameter list at that index.
*
* @template_ptr: Pointer to the template buffer.
* @template_size: Size of the template buffer.
* @param_list: List of template parameters.
* @param_num: Number of parameters in the list.
*
* Returns:
* Kmalloc-allocated pointer to the created report descriptor,
* or NULL if allocation failed.
*/
__u8 *uclogic_rdesc_template_apply(const __u8 *template_ptr,
size_t template_size,
const s32 *param_list,
size_t param_num)
{
static const __u8 btn_head[] = {UCLOGIC_RDESC_FRAME_PH_BTN_HEAD};
static const __u8 pen_head[] = {UCLOGIC_RDESC_PEN_PH_HEAD};
__u8 *rdesc_ptr;
__u8 *p;
s32 v;
rdesc_ptr = kmemdup(template_ptr, template_size, GFP_KERNEL);
if (rdesc_ptr == NULL)
return NULL;
for (p = rdesc_ptr; p + sizeof(btn_head) < rdesc_ptr + template_size;) {
if (p + sizeof(pen_head) < rdesc_ptr + template_size &&
memcmp(p, pen_head, sizeof(pen_head)) == 0 &&
p[sizeof(pen_head)] < param_num) {
v = param_list[p[sizeof(pen_head)]];
put_unaligned((__force u32)cpu_to_le32(v), (s32 *)p);
p += sizeof(pen_head) + 1;
} else if (memcmp(p, btn_head, sizeof(btn_head)) == 0 &&
p[sizeof(btn_head)] < param_num) {
v = param_list[p[sizeof(btn_head)]];
put_unaligned((__u8)0x2A, p); /* Usage Maximum */
put_unaligned((__force u16)cpu_to_le16(v), (s16 *)(p + 1));
p += sizeof(btn_head) + 1;
} else {
p++;
}
}
return rdesc_ptr;
}
| linux-master | drivers/hid/hid-uclogic-rdesc.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for ELECOM devices:
* - BM084 Bluetooth Mouse
* - EX-G Trackballs (M-XT3DRBK, M-XT3URBK, M-XT4DRBK)
* - DEFT Trackballs (M-DT1DRBK, M-DT1URBK, M-DT2DRBK, M-DT2URBK)
* - HUGE Trackballs (M-HT1DRBK, M-HT1URBK)
*
* Copyright (c) 2010 Richard Nauber <[email protected]>
* Copyright (c) 2016 Yuxuan Shui <[email protected]>
* Copyright (c) 2017 Diego Elio Pettenò <[email protected]>
* Copyright (c) 2017 Alex Manoussakis <[email protected]>
* Copyright (c) 2017 Tomasz Kramkowski <[email protected]>
* Copyright (c) 2020 YOSHIOKA Takuma <[email protected]>
* Copyright (c) 2022 Takahiro Fujii <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* Certain ELECOM mice misreport their button count meaning that they only work
* correctly with the ELECOM mouse assistant software which is unavailable for
* Linux. A four extra INPUT reports and a FEATURE report are described by the
* report descriptor but it does not appear that these enable software to
* control what the extra buttons map to. The only simple and straightforward
* solution seems to involve fixing up the report descriptor.
*/
#define MOUSE_BUTTONS_MAX 8
static void mouse_button_fixup(struct hid_device *hdev,
__u8 *rdesc, unsigned int rsize,
unsigned int button_bit_count,
unsigned int padding_bit,
unsigned int button_report_size,
unsigned int button_usage_maximum,
int nbuttons)
{
if (rsize < 32 || rdesc[button_bit_count] != 0x95 ||
rdesc[button_report_size] != 0x75 ||
rdesc[button_report_size + 1] != 0x01 ||
rdesc[button_usage_maximum] != 0x29 || rdesc[padding_bit] != 0x75)
return;
hid_info(hdev, "Fixing up Elecom mouse button count\n");
nbuttons = clamp(nbuttons, 0, MOUSE_BUTTONS_MAX);
rdesc[button_bit_count + 1] = nbuttons;
rdesc[button_usage_maximum + 1] = nbuttons;
rdesc[padding_bit + 1] = MOUSE_BUTTONS_MAX - nbuttons;
}
static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_ELECOM_BM084:
/* The BM084 Bluetooth mouse includes a non-existing horizontal
* wheel in the HID descriptor. */
if (*rsize >= 48 && rdesc[46] == 0x05 && rdesc[47] == 0x0c) {
hid_info(hdev, "Fixing up Elecom BM084 report descriptor\n");
rdesc[47] = 0x00;
}
break;
case USB_DEVICE_ID_ELECOM_M_XGL20DLBK:
/*
* Report descriptor format:
* 20: button bit count
* 28: padding bit count
* 22: button report size
* 14: button usage maximum
*/
mouse_button_fixup(hdev, rdesc, *rsize, 20, 28, 22, 14, 8);
break;
case USB_DEVICE_ID_ELECOM_M_XT3URBK:
case USB_DEVICE_ID_ELECOM_M_XT3DRBK:
case USB_DEVICE_ID_ELECOM_M_XT4DRBK:
/*
* Report descriptor format:
* 12: button bit count
* 30: padding bit count
* 14: button report size
* 20: button usage maximum
*/
mouse_button_fixup(hdev, rdesc, *rsize, 12, 30, 14, 20, 6);
break;
case USB_DEVICE_ID_ELECOM_M_DT1URBK:
case USB_DEVICE_ID_ELECOM_M_DT1DRBK:
case USB_DEVICE_ID_ELECOM_M_HT1URBK:
case USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D:
/*
* Report descriptor format:
* 12: button bit count
* 30: padding bit count
* 14: button report size
* 20: button usage maximum
*/
mouse_button_fixup(hdev, rdesc, *rsize, 12, 30, 14, 20, 8);
break;
case USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C:
/*
* Report descriptor format:
* 22: button bit count
* 30: padding bit count
* 24: button report size
* 16: button usage maximum
*/
mouse_button_fixup(hdev, rdesc, *rsize, 22, 30, 24, 16, 8);
break;
}
return rdesc;
}
static const struct hid_device_id elecom_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C) },
{ }
};
MODULE_DEVICE_TABLE(hid, elecom_devices);
static struct hid_driver elecom_driver = {
.name = "elecom",
.id_table = elecom_devices,
.report_fixup = elecom_report_fixup
};
module_hid_driver(elecom_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-elecom.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for Aureal Cy se W-01RN USB_V3.1 devices
*
* Copyright (c) 2010 Franco Catrin <[email protected]>
* Copyright (c) 2010 Ben Cropley <[email protected]>
*
* Based on HID sunplus driver by
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static __u8 *aureal_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
dev_info(&hdev->dev, "fixing Aureal Cy se W-01RN USB_V3.1 report descriptor.\n");
rdesc[53] = 0x65;
}
return rdesc;
}
static const struct hid_device_id aureal_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
{ }
};
MODULE_DEVICE_TABLE(hid, aureal_devices);
static struct hid_driver aureal_driver = {
.name = "aureal",
.id_table = aureal_devices,
.report_fixup = aureal_report_fixup,
};
module_hid_driver(aureal_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-aureal.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat driver for Linux
*
* Copyright (c) 2010 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Module roccat is a char device used to report special events of roccat
* hardware to userland. These events include requests for on-screen-display of
* profile or dpi settings or requests for execution of macro sequences that are
* not stored in device. The information in these events depends on hid device
* implementation and contains data that is not available in a single hid event
* or else hidraw could have been used.
* It is inspired by hidraw, but uses only one circular buffer for all readers.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/cdev.h>
#include <linux/poll.h>
#include <linux/sched/signal.h>
#include <linux/hid-roccat.h>
#include <linux/module.h>
#define ROCCAT_FIRST_MINOR 0
#define ROCCAT_MAX_DEVICES 8
/* should be a power of 2 for performance reason */
#define ROCCAT_CBUF_SIZE 16
struct roccat_report {
uint8_t *value;
};
struct roccat_device {
unsigned int minor;
int report_size;
int open;
int exist;
wait_queue_head_t wait;
struct device *dev;
struct hid_device *hid;
struct list_head readers;
/* protects modifications of readers list */
struct mutex readers_lock;
/*
* circular_buffer has one writer and multiple readers with their own
* read pointers
*/
struct roccat_report cbuf[ROCCAT_CBUF_SIZE];
int cbuf_end;
struct mutex cbuf_lock;
};
struct roccat_reader {
struct list_head node;
struct roccat_device *device;
int cbuf_start;
};
static int roccat_major;
static struct cdev roccat_cdev;
static struct roccat_device *devices[ROCCAT_MAX_DEVICES];
/* protects modifications of devices array */
static DEFINE_MUTEX(devices_lock);
static ssize_t roccat_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct roccat_reader *reader = file->private_data;
struct roccat_device *device = reader->device;
struct roccat_report *report;
ssize_t retval = 0, len;
DECLARE_WAITQUEUE(wait, current);
mutex_lock(&device->cbuf_lock);
/* no data? */
if (reader->cbuf_start == device->cbuf_end) {
add_wait_queue(&device->wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
/* wait for data */
while (reader->cbuf_start == device->cbuf_end) {
if (file->f_flags & O_NONBLOCK) {
retval = -EAGAIN;
break;
}
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
}
if (!device->exist) {
retval = -EIO;
break;
}
mutex_unlock(&device->cbuf_lock);
schedule();
mutex_lock(&device->cbuf_lock);
set_current_state(TASK_INTERRUPTIBLE);
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&device->wait, &wait);
}
/* here we either have data or a reason to return if retval is set */
if (retval)
goto exit_unlock;
report = &device->cbuf[reader->cbuf_start];
/*
* If report is larger than requested amount of data, rest of report
* is lost!
*/
len = device->report_size > count ? count : device->report_size;
if (copy_to_user(buffer, report->value, len)) {
retval = -EFAULT;
goto exit_unlock;
}
retval += len;
reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
exit_unlock:
mutex_unlock(&device->cbuf_lock);
return retval;
}
static __poll_t roccat_poll(struct file *file, poll_table *wait)
{
struct roccat_reader *reader = file->private_data;
poll_wait(file, &reader->device->wait, wait);
if (reader->cbuf_start != reader->device->cbuf_end)
return EPOLLIN | EPOLLRDNORM;
if (!reader->device->exist)
return EPOLLERR | EPOLLHUP;
return 0;
}
static int roccat_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct roccat_reader *reader;
struct roccat_device *device;
int error = 0;
reader = kzalloc(sizeof(struct roccat_reader), GFP_KERNEL);
if (!reader)
return -ENOMEM;
mutex_lock(&devices_lock);
device = devices[minor];
if (!device) {
pr_emerg("roccat device with minor %d doesn't exist\n", minor);
error = -ENODEV;
goto exit_err_devices;
}
mutex_lock(&device->readers_lock);
if (!device->open++) {
/* power on device on adding first reader */
error = hid_hw_power(device->hid, PM_HINT_FULLON);
if (error < 0) {
--device->open;
goto exit_err_readers;
}
error = hid_hw_open(device->hid);
if (error < 0) {
hid_hw_power(device->hid, PM_HINT_NORMAL);
--device->open;
goto exit_err_readers;
}
}
reader->device = device;
/* new reader doesn't get old events */
reader->cbuf_start = device->cbuf_end;
list_add_tail(&reader->node, &device->readers);
file->private_data = reader;
exit_err_readers:
mutex_unlock(&device->readers_lock);
exit_err_devices:
mutex_unlock(&devices_lock);
if (error)
kfree(reader);
return error;
}
static int roccat_release(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct roccat_reader *reader = file->private_data;
struct roccat_device *device;
mutex_lock(&devices_lock);
device = devices[minor];
if (!device) {
mutex_unlock(&devices_lock);
pr_emerg("roccat device with minor %d doesn't exist\n", minor);
return -ENODEV;
}
mutex_lock(&device->readers_lock);
list_del(&reader->node);
mutex_unlock(&device->readers_lock);
kfree(reader);
if (!--device->open) {
/* removing last reader */
if (device->exist) {
hid_hw_power(device->hid, PM_HINT_NORMAL);
hid_hw_close(device->hid);
} else {
kfree(device);
}
}
mutex_unlock(&devices_lock);
return 0;
}
/*
* roccat_report_event() - output data to readers
* @minor: minor device number returned by roccat_connect()
* @data: pointer to data
*
* Return value is zero on success, a negative error code on failure.
*
* This is called from interrupt handler.
*/
int roccat_report_event(int minor, u8 const *data)
{
struct roccat_device *device;
struct roccat_reader *reader;
struct roccat_report *report;
uint8_t *new_value;
device = devices[minor];
new_value = kmemdup(data, device->report_size, GFP_ATOMIC);
if (!new_value)
return -ENOMEM;
mutex_lock(&device->cbuf_lock);
report = &device->cbuf[device->cbuf_end];
/* passing NULL is safe */
kfree(report->value);
report->value = new_value;
device->cbuf_end = (device->cbuf_end + 1) % ROCCAT_CBUF_SIZE;
list_for_each_entry(reader, &device->readers, node) {
/*
* As we already inserted one element, the buffer can't be
* empty. If start and end are equal, buffer is full and we
* increase start, so that slow reader misses one event, but
* gets the newer ones in the right order.
*/
if (reader->cbuf_start == device->cbuf_end)
reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
}
mutex_unlock(&device->cbuf_lock);
wake_up_interruptible(&device->wait);
return 0;
}
EXPORT_SYMBOL_GPL(roccat_report_event);
/*
* roccat_connect() - create a char device for special event output
* @class: the class thats used to create the device. Meant to hold device
* specific sysfs attributes.
* @hid: the hid device the char device should be connected to.
* @report_size: size of reports
*
* Return value is minor device number in Range [0, ROCCAT_MAX_DEVICES] on
* success, a negative error code on failure.
*/
int roccat_connect(const struct class *klass, struct hid_device *hid, int report_size)
{
unsigned int minor;
struct roccat_device *device;
int temp;
device = kzalloc(sizeof(struct roccat_device), GFP_KERNEL);
if (!device)
return -ENOMEM;
mutex_lock(&devices_lock);
for (minor = 0; minor < ROCCAT_MAX_DEVICES; ++minor) {
if (devices[minor])
continue;
break;
}
if (minor < ROCCAT_MAX_DEVICES) {
devices[minor] = device;
} else {
mutex_unlock(&devices_lock);
kfree(device);
return -EINVAL;
}
device->dev = device_create(klass, &hid->dev,
MKDEV(roccat_major, minor), NULL,
"%s%s%d", "roccat", hid->driver->name, minor);
if (IS_ERR(device->dev)) {
devices[minor] = NULL;
mutex_unlock(&devices_lock);
temp = PTR_ERR(device->dev);
kfree(device);
return temp;
}
mutex_unlock(&devices_lock);
init_waitqueue_head(&device->wait);
INIT_LIST_HEAD(&device->readers);
mutex_init(&device->readers_lock);
mutex_init(&device->cbuf_lock);
device->minor = minor;
device->hid = hid;
device->exist = 1;
device->cbuf_end = 0;
device->report_size = report_size;
return minor;
}
EXPORT_SYMBOL_GPL(roccat_connect);
/* roccat_disconnect() - remove char device from hid device
* @minor: the minor device number returned by roccat_connect()
*/
void roccat_disconnect(int minor)
{
struct roccat_device *device;
mutex_lock(&devices_lock);
device = devices[minor];
mutex_unlock(&devices_lock);
device->exist = 0; /* TODO exist maybe not needed */
device_destroy(device->dev->class, MKDEV(roccat_major, minor));
mutex_lock(&devices_lock);
devices[minor] = NULL;
mutex_unlock(&devices_lock);
if (device->open) {
hid_hw_close(device->hid);
wake_up_interruptible(&device->wait);
} else {
kfree(device);
}
}
EXPORT_SYMBOL_GPL(roccat_disconnect);
static long roccat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(file);
struct roccat_device *device;
unsigned int minor = iminor(inode);
long retval = 0;
mutex_lock(&devices_lock);
device = devices[minor];
if (!device) {
retval = -ENODEV;
goto out;
}
switch (cmd) {
case ROCCATIOCGREPSIZE:
if (put_user(device->report_size, (int __user *)arg))
retval = -EFAULT;
break;
default:
retval = -ENOTTY;
}
out:
mutex_unlock(&devices_lock);
return retval;
}
static const struct file_operations roccat_ops = {
.owner = THIS_MODULE,
.read = roccat_read,
.poll = roccat_poll,
.open = roccat_open,
.release = roccat_release,
.llseek = noop_llseek,
.unlocked_ioctl = roccat_ioctl,
};
static int __init roccat_init(void)
{
int retval;
dev_t dev_id;
retval = alloc_chrdev_region(&dev_id, ROCCAT_FIRST_MINOR,
ROCCAT_MAX_DEVICES, "roccat");
if (retval < 0) {
pr_warn("can't get major number\n");
goto error;
}
roccat_major = MAJOR(dev_id);
cdev_init(&roccat_cdev, &roccat_ops);
retval = cdev_add(&roccat_cdev, dev_id, ROCCAT_MAX_DEVICES);
if (retval < 0) {
pr_warn("cannot add cdev\n");
goto cleanup_alloc_chrdev_region;
}
return 0;
cleanup_alloc_chrdev_region:
unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
error:
return retval;
}
static void __exit roccat_exit(void)
{
dev_t dev_id = MKDEV(roccat_major, 0);
cdev_del(&roccat_cdev);
unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
}
module_init(roccat_init);
module_exit(roccat_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat char device");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat.c |
// SPDX-License-Identifier: GPL-2.0
/*
* HID driver for Maltron L90
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2008 Jiri Slaby
* Copyright (c) 2012 David Dillow <[email protected]>
* Copyright (c) 2006-2013 Jiri Kosina
* Copyright (c) 2013 Colin Leitner <[email protected]>
* Copyright (c) 2014-2016 Frank Praznik <[email protected]>
* Copyright (c) 2010 Richard Nauber <[email protected]>
* Copyright (c) 2016 Yuxuan Shui <[email protected]>
* Copyright (c) 2018 William Whistler <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* The original buggy USB descriptor */
static u8 maltron_rdesc_o[] = {
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x09, 0x80, /* Usage (Sys Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x02, /* Report ID (2) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x01, /* Report Count (1) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x83, /* Usage (Sys Wake Up) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Const,Array,Abs) */
0xC0, /* End Collection */
0x05, 0x0C, /* Usage Page (Consumer) */
0x09, 0x01, /* Usage (Consumer Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x03, /* Report ID (3) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (Unassigned) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0xC0, /* End Collection */
0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
0x09, 0x01, /* Usage (0x01) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x04, /* Report ID (4) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0x75, 0x02, /* Report Size (2) */
0x25, 0x02, /* Logical Maximum (2) */
0x09, 0x90, /* Usage (0x90) */
0xB1, 0x02, /* Feature (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0xB1, 0x01, /* Feature (Const,Array,Abs) */
0x75, 0x01, /* Report Size (1) */
0x25, 0x01, /* Logical Maximum (1) */
0x05, 0x08, /* Usage Page (LEDs) */
0x09, 0x2A, /* Usage (On-Line) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x09, 0x4B, /* Usage (Generic Indicator) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0x95, 0x01, /* Report Count (1) */
0x91, 0x01, /* Output (Const,Array,Abs) */
0xC0 /* End Collection */
};
/* The patched descriptor, allowing media key events to be accepted as valid */
static u8 maltron_rdesc[] = {
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x09, 0x80, /* Usage (Sys Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x02, /* Report ID (2) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x01, /* Report Count (1) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x83, /* Usage (Sys Wake Up) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Const,Array,Abs) */
0xC0, /* End Collection */
0x05, 0x0C, /* Usage Page (Consumer) */
0x09, 0x01, /* Usage (Consumer Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x03, /* Report ID (3) */
0x15, 0x00, /* Logical Minimum (0) - changed */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767) - changed */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (Unassigned) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0xC0, /* End Collection */
0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
0x09, 0x01, /* Usage (0x01) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x04, /* Report ID (4) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0x75, 0x02, /* Report Size (2) */
0x25, 0x02, /* Logical Maximum (2) */
0x09, 0x90, /* Usage (0x90) */
0xB1, 0x02, /* Feature (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0xB1, 0x01, /* Feature (Const,Array,Abs) */
0x75, 0x01, /* Report Size (1) */
0x25, 0x01, /* Logical Maximum (1) */
0x05, 0x08, /* Usage Page (LEDs) */
0x09, 0x2A, /* Usage (On-Line) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x09, 0x4B, /* Usage (Generic Indicator) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0x95, 0x01, /* Report Count (1) */
0x91, 0x01, /* Output (Const,Array,Abs) */
0xC0 /* End Collection */
};
static __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == sizeof(maltron_rdesc_o) &&
!memcmp(maltron_rdesc_o, rdesc, sizeof(maltron_rdesc_o))) {
hid_info(hdev, "Replacing Maltron L90 keyboard report descriptor\n");
*rsize = sizeof(maltron_rdesc);
return maltron_rdesc;
}
return rdesc;
}
static const struct hid_device_id maltron_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_MALTRON_KB)},
{ }
};
MODULE_DEVICE_TABLE(hid, maltron_devices);
static struct hid_driver maltron_driver = {
.name = "maltron",
.id_table = maltron_devices,
.report_fixup = maltron_report_fixup
};
module_hid_driver(maltron_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-maltron.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for gaming keys on Logitech gaming keyboards (such as the G15)
*
* Copyright (c) 2019 Hans de Goede <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/sched.h>
#include <linux/usb.h>
#include <linux/wait.h>
#include "hid-ids.h"
#define LG_G15_TRANSFER_BUF_SIZE 20
#define LG_G15_FEATURE_REPORT 0x02
#define LG_G510_FEATURE_M_KEYS_LEDS 0x04
#define LG_G510_FEATURE_BACKLIGHT_RGB 0x05
#define LG_G510_FEATURE_POWER_ON_RGB 0x06
enum lg_g15_model {
LG_G15,
LG_G15_V2,
LG_G510,
LG_G510_USB_AUDIO,
LG_Z10,
};
enum lg_g15_led_type {
LG_G15_KBD_BRIGHTNESS,
LG_G15_LCD_BRIGHTNESS,
LG_G15_BRIGHTNESS_MAX,
LG_G15_MACRO_PRESET1 = 2,
LG_G15_MACRO_PRESET2,
LG_G15_MACRO_PRESET3,
LG_G15_MACRO_RECORD,
LG_G15_LED_MAX
};
struct lg_g15_led {
struct led_classdev cdev;
enum led_brightness brightness;
enum lg_g15_led_type led;
u8 red, green, blue;
};
struct lg_g15_data {
/* Must be first for proper dma alignment */
u8 transfer_buf[LG_G15_TRANSFER_BUF_SIZE];
/* Protects the transfer_buf and led brightness */
struct mutex mutex;
struct work_struct work;
struct input_dev *input;
struct hid_device *hdev;
enum lg_g15_model model;
struct lg_g15_led leds[LG_G15_LED_MAX];
bool game_mode_enabled;
};
/******** G15 and G15 v2 LED functions ********/
static int lg_g15_update_led_brightness(struct lg_g15_data *g15)
{
int ret;
ret = hid_hw_raw_request(g15->hdev, LG_G15_FEATURE_REPORT,
g15->transfer_buf, 4,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret != 4) {
hid_err(g15->hdev, "Error getting LED brightness: %d\n", ret);
return (ret < 0) ? ret : -EIO;
}
g15->leds[LG_G15_KBD_BRIGHTNESS].brightness = g15->transfer_buf[1];
g15->leds[LG_G15_LCD_BRIGHTNESS].brightness = g15->transfer_buf[2];
g15->leds[LG_G15_MACRO_PRESET1].brightness =
!(g15->transfer_buf[3] & 0x01);
g15->leds[LG_G15_MACRO_PRESET2].brightness =
!(g15->transfer_buf[3] & 0x02);
g15->leds[LG_G15_MACRO_PRESET3].brightness =
!(g15->transfer_buf[3] & 0x04);
g15->leds[LG_G15_MACRO_RECORD].brightness =
!(g15->transfer_buf[3] & 0x08);
return 0;
}
static enum led_brightness lg_g15_led_get(struct led_classdev *led_cdev)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
enum led_brightness brightness;
mutex_lock(&g15->mutex);
lg_g15_update_led_brightness(g15);
brightness = g15->leds[g15_led->led].brightness;
mutex_unlock(&g15->mutex);
return brightness;
}
static int lg_g15_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
u8 val, mask = 0;
int i, ret;
/* Ignore LED off on unregister / keyboard unplug */
if (led_cdev->flags & LED_UNREGISTERING)
return 0;
mutex_lock(&g15->mutex);
g15->transfer_buf[0] = LG_G15_FEATURE_REPORT;
g15->transfer_buf[3] = 0;
if (g15_led->led < LG_G15_BRIGHTNESS_MAX) {
g15->transfer_buf[1] = g15_led->led + 1;
g15->transfer_buf[2] = brightness << (g15_led->led * 4);
} else {
for (i = LG_G15_MACRO_PRESET1; i < LG_G15_LED_MAX; i++) {
if (i == g15_led->led)
val = brightness;
else
val = g15->leds[i].brightness;
if (val)
mask |= 1 << (i - LG_G15_MACRO_PRESET1);
}
g15->transfer_buf[1] = 0x04;
g15->transfer_buf[2] = ~mask;
}
ret = hid_hw_raw_request(g15->hdev, LG_G15_FEATURE_REPORT,
g15->transfer_buf, 4,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret == 4) {
/* Success */
g15_led->brightness = brightness;
ret = 0;
} else {
hid_err(g15->hdev, "Error setting LED brightness: %d\n", ret);
ret = (ret < 0) ? ret : -EIO;
}
mutex_unlock(&g15->mutex);
return ret;
}
static void lg_g15_leds_changed_work(struct work_struct *work)
{
struct lg_g15_data *g15 = container_of(work, struct lg_g15_data, work);
enum led_brightness old_brightness[LG_G15_BRIGHTNESS_MAX];
enum led_brightness brightness[LG_G15_BRIGHTNESS_MAX];
int i, ret;
mutex_lock(&g15->mutex);
for (i = 0; i < LG_G15_BRIGHTNESS_MAX; i++)
old_brightness[i] = g15->leds[i].brightness;
ret = lg_g15_update_led_brightness(g15);
for (i = 0; i < LG_G15_BRIGHTNESS_MAX; i++)
brightness[i] = g15->leds[i].brightness;
mutex_unlock(&g15->mutex);
if (ret)
return;
for (i = 0; i < LG_G15_BRIGHTNESS_MAX; i++) {
if (brightness[i] == old_brightness[i])
continue;
led_classdev_notify_brightness_hw_changed(&g15->leds[i].cdev,
brightness[i]);
}
}
/******** G510 LED functions ********/
static int lg_g510_get_initial_led_brightness(struct lg_g15_data *g15, int i)
{
int ret, high;
ret = hid_hw_raw_request(g15->hdev, LG_G510_FEATURE_BACKLIGHT_RGB + i,
g15->transfer_buf, 4,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret != 4) {
hid_err(g15->hdev, "Error getting LED brightness: %d\n", ret);
return (ret < 0) ? ret : -EIO;
}
high = max3(g15->transfer_buf[1], g15->transfer_buf[2],
g15->transfer_buf[3]);
if (high) {
g15->leds[i].red =
DIV_ROUND_CLOSEST(g15->transfer_buf[1] * 255, high);
g15->leds[i].green =
DIV_ROUND_CLOSEST(g15->transfer_buf[2] * 255, high);
g15->leds[i].blue =
DIV_ROUND_CLOSEST(g15->transfer_buf[3] * 255, high);
g15->leds[i].brightness = high;
} else {
g15->leds[i].red = 255;
g15->leds[i].green = 255;
g15->leds[i].blue = 255;
g15->leds[i].brightness = 0;
}
return 0;
}
/* Must be called with g15->mutex locked */
static int lg_g510_kbd_led_write(struct lg_g15_data *g15,
struct lg_g15_led *g15_led,
enum led_brightness brightness)
{
int ret;
g15->transfer_buf[0] = 5 + g15_led->led;
g15->transfer_buf[1] =
DIV_ROUND_CLOSEST(g15_led->red * brightness, 255);
g15->transfer_buf[2] =
DIV_ROUND_CLOSEST(g15_led->green * brightness, 255);
g15->transfer_buf[3] =
DIV_ROUND_CLOSEST(g15_led->blue * brightness, 255);
ret = hid_hw_raw_request(g15->hdev,
LG_G510_FEATURE_BACKLIGHT_RGB + g15_led->led,
g15->transfer_buf, 4,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret == 4) {
/* Success */
g15_led->brightness = brightness;
ret = 0;
} else {
hid_err(g15->hdev, "Error setting LED brightness: %d\n", ret);
ret = (ret < 0) ? ret : -EIO;
}
return ret;
}
static int lg_g510_kbd_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
int ret;
/* Ignore LED off on unregister / keyboard unplug */
if (led_cdev->flags & LED_UNREGISTERING)
return 0;
mutex_lock(&g15->mutex);
ret = lg_g510_kbd_led_write(g15, g15_led, brightness);
mutex_unlock(&g15->mutex);
return ret;
}
static enum led_brightness lg_g510_kbd_led_get(struct led_classdev *led_cdev)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
return g15_led->brightness;
}
static ssize_t color_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
unsigned long value;
int ret;
if (count < 7 || (count == 8 && buf[7] != '\n') || count > 8)
return -EINVAL;
if (buf[0] != '#')
return -EINVAL;
ret = kstrtoul(buf + 1, 16, &value);
if (ret)
return ret;
mutex_lock(&g15->mutex);
g15_led->red = (value & 0xff0000) >> 16;
g15_led->green = (value & 0x00ff00) >> 8;
g15_led->blue = (value & 0x0000ff);
ret = lg_g510_kbd_led_write(g15, g15_led, g15_led->brightness);
mutex_unlock(&g15->mutex);
return (ret < 0) ? ret : count;
}
static ssize_t color_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
ssize_t ret;
mutex_lock(&g15->mutex);
ret = sprintf(buf, "#%02x%02x%02x\n",
g15_led->red, g15_led->green, g15_led->blue);
mutex_unlock(&g15->mutex);
return ret;
}
static DEVICE_ATTR_RW(color);
static struct attribute *lg_g510_kbd_led_attrs[] = {
&dev_attr_color.attr,
NULL,
};
static const struct attribute_group lg_g510_kbd_led_group = {
.attrs = lg_g510_kbd_led_attrs,
};
static const struct attribute_group *lg_g510_kbd_led_groups[] = {
&lg_g510_kbd_led_group,
NULL,
};
static void lg_g510_leds_sync_work(struct work_struct *work)
{
struct lg_g15_data *g15 = container_of(work, struct lg_g15_data, work);
mutex_lock(&g15->mutex);
lg_g510_kbd_led_write(g15, &g15->leds[LG_G15_KBD_BRIGHTNESS],
g15->leds[LG_G15_KBD_BRIGHTNESS].brightness);
mutex_unlock(&g15->mutex);
}
static int lg_g510_update_mkey_led_brightness(struct lg_g15_data *g15)
{
int ret;
ret = hid_hw_raw_request(g15->hdev, LG_G510_FEATURE_M_KEYS_LEDS,
g15->transfer_buf, 2,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret != 2) {
hid_err(g15->hdev, "Error getting LED brightness: %d\n", ret);
ret = (ret < 0) ? ret : -EIO;
}
g15->leds[LG_G15_MACRO_PRESET1].brightness =
!!(g15->transfer_buf[1] & 0x80);
g15->leds[LG_G15_MACRO_PRESET2].brightness =
!!(g15->transfer_buf[1] & 0x40);
g15->leds[LG_G15_MACRO_PRESET3].brightness =
!!(g15->transfer_buf[1] & 0x20);
g15->leds[LG_G15_MACRO_RECORD].brightness =
!!(g15->transfer_buf[1] & 0x10);
return 0;
}
static enum led_brightness lg_g510_mkey_led_get(struct led_classdev *led_cdev)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
enum led_brightness brightness;
mutex_lock(&g15->mutex);
lg_g510_update_mkey_led_brightness(g15);
brightness = g15->leds[g15_led->led].brightness;
mutex_unlock(&g15->mutex);
return brightness;
}
static int lg_g510_mkey_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct lg_g15_led *g15_led =
container_of(led_cdev, struct lg_g15_led, cdev);
struct lg_g15_data *g15 = dev_get_drvdata(led_cdev->dev->parent);
u8 val, mask = 0;
int i, ret;
/* Ignore LED off on unregister / keyboard unplug */
if (led_cdev->flags & LED_UNREGISTERING)
return 0;
mutex_lock(&g15->mutex);
for (i = LG_G15_MACRO_PRESET1; i < LG_G15_LED_MAX; i++) {
if (i == g15_led->led)
val = brightness;
else
val = g15->leds[i].brightness;
if (val)
mask |= 0x80 >> (i - LG_G15_MACRO_PRESET1);
}
g15->transfer_buf[0] = LG_G510_FEATURE_M_KEYS_LEDS;
g15->transfer_buf[1] = mask;
ret = hid_hw_raw_request(g15->hdev, LG_G510_FEATURE_M_KEYS_LEDS,
g15->transfer_buf, 2,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret == 2) {
/* Success */
g15_led->brightness = brightness;
ret = 0;
} else {
hid_err(g15->hdev, "Error setting LED brightness: %d\n", ret);
ret = (ret < 0) ? ret : -EIO;
}
mutex_unlock(&g15->mutex);
return ret;
}
/******** Generic LED functions ********/
static int lg_g15_get_initial_led_brightness(struct lg_g15_data *g15)
{
int ret;
switch (g15->model) {
case LG_G15:
case LG_G15_V2:
return lg_g15_update_led_brightness(g15);
case LG_G510:
case LG_G510_USB_AUDIO:
ret = lg_g510_get_initial_led_brightness(g15, 0);
if (ret)
return ret;
ret = lg_g510_get_initial_led_brightness(g15, 1);
if (ret)
return ret;
return lg_g510_update_mkey_led_brightness(g15);
case LG_Z10:
/*
* Getting the LCD backlight brightness is not supported.
* Reading Feature(2) fails with -EPIPE and this crashes
* the LCD and touch keys part of the speakers.
*/
return 0;
}
return -EINVAL; /* Never reached */
}
/******** Input functions ********/
/* On the G15 Mark I Logitech has been quite creative with which bit is what */
static void lg_g15_handle_lcd_menu_keys(struct lg_g15_data *g15, u8 *data)
{
int i, val;
/* Most left (round/display) button below the LCD */
input_report_key(g15->input, KEY_KBD_LCD_MENU1, data[8] & 0x80);
/* 4 other buttons below the LCD */
for (i = 0; i < 4; i++) {
val = data[i + 2] & 0x80;
input_report_key(g15->input, KEY_KBD_LCD_MENU2 + i, val);
}
}
static int lg_g15_event(struct lg_g15_data *g15, u8 *data)
{
int i, val;
/* G1 - G6 */
for (i = 0; i < 6; i++) {
val = data[i + 1] & (1 << i);
input_report_key(g15->input, KEY_MACRO1 + i, val);
}
/* G7 - G12 */
for (i = 0; i < 6; i++) {
val = data[i + 2] & (1 << i);
input_report_key(g15->input, KEY_MACRO7 + i, val);
}
/* G13 - G17 */
for (i = 0; i < 5; i++) {
val = data[i + 1] & (4 << i);
input_report_key(g15->input, KEY_MACRO13 + i, val);
}
/* G18 */
input_report_key(g15->input, KEY_MACRO18, data[8] & 0x40);
/* M1 - M3 */
for (i = 0; i < 3; i++) {
val = data[i + 6] & (1 << i);
input_report_key(g15->input, KEY_MACRO_PRESET1 + i, val);
}
/* MR */
input_report_key(g15->input, KEY_MACRO_RECORD_START, data[7] & 0x40);
lg_g15_handle_lcd_menu_keys(g15, data);
/* Backlight cycle button pressed? */
if (data[1] & 0x80)
schedule_work(&g15->work);
input_sync(g15->input);
return 0;
}
static int lg_g15_v2_event(struct lg_g15_data *g15, u8 *data)
{
int i, val;
/* G1 - G6 */
for (i = 0; i < 6; i++) {
val = data[1] & (1 << i);
input_report_key(g15->input, KEY_MACRO1 + i, val);
}
/* M1 - M3 + MR */
input_report_key(g15->input, KEY_MACRO_PRESET1, data[1] & 0x40);
input_report_key(g15->input, KEY_MACRO_PRESET2, data[1] & 0x80);
input_report_key(g15->input, KEY_MACRO_PRESET3, data[2] & 0x20);
input_report_key(g15->input, KEY_MACRO_RECORD_START, data[2] & 0x40);
/* Round button to the left of the LCD */
input_report_key(g15->input, KEY_KBD_LCD_MENU1, data[2] & 0x80);
/* 4 buttons below the LCD */
for (i = 0; i < 4; i++) {
val = data[2] & (2 << i);
input_report_key(g15->input, KEY_KBD_LCD_MENU2 + i, val);
}
/* Backlight cycle button pressed? */
if (data[2] & 0x01)
schedule_work(&g15->work);
input_sync(g15->input);
return 0;
}
static int lg_g510_event(struct lg_g15_data *g15, u8 *data)
{
bool game_mode_enabled;
int i, val;
/* G1 - G18 */
for (i = 0; i < 18; i++) {
val = data[i / 8 + 1] & (1 << (i % 8));
input_report_key(g15->input, KEY_MACRO1 + i, val);
}
/* Game mode on/off slider */
game_mode_enabled = data[3] & 0x04;
if (game_mode_enabled != g15->game_mode_enabled) {
if (game_mode_enabled)
hid_info(g15->hdev, "Game Mode enabled, Windows (super) key is disabled\n");
else
hid_info(g15->hdev, "Game Mode disabled\n");
g15->game_mode_enabled = game_mode_enabled;
}
/* M1 - M3 */
for (i = 0; i < 3; i++) {
val = data[3] & (0x10 << i);
input_report_key(g15->input, KEY_MACRO_PRESET1 + i, val);
}
/* MR */
input_report_key(g15->input, KEY_MACRO_RECORD_START, data[3] & 0x80);
/* LCD menu keys */
for (i = 0; i < 5; i++) {
val = data[4] & (1 << i);
input_report_key(g15->input, KEY_KBD_LCD_MENU1 + i, val);
}
/* Headphone Mute */
input_report_key(g15->input, KEY_MUTE, data[4] & 0x20);
/* Microphone Mute */
input_report_key(g15->input, KEY_F20, data[4] & 0x40);
input_sync(g15->input);
return 0;
}
static int lg_g510_leds_event(struct lg_g15_data *g15, u8 *data)
{
bool backlight_disabled;
/*
* The G510 ignores backlight updates when the backlight is turned off
* through the light toggle button on the keyboard, to work around this
* we queue a workitem to sync values when the backlight is turned on.
*/
backlight_disabled = data[1] & 0x04;
if (!backlight_disabled)
schedule_work(&g15->work);
return 0;
}
static int lg_g15_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct lg_g15_data *g15 = hid_get_drvdata(hdev);
if (!g15)
return 0;
switch (g15->model) {
case LG_G15:
if (data[0] == 0x02 && size == 9)
return lg_g15_event(g15, data);
break;
case LG_G15_V2:
if (data[0] == 0x02 && size == 5)
return lg_g15_v2_event(g15, data);
break;
case LG_Z10:
if (data[0] == 0x02 && size == 9) {
lg_g15_handle_lcd_menu_keys(g15, data);
input_sync(g15->input);
}
break;
case LG_G510:
case LG_G510_USB_AUDIO:
if (data[0] == 0x03 && size == 5)
return lg_g510_event(g15, data);
if (data[0] == 0x04 && size == 2)
return lg_g510_leds_event(g15, data);
break;
}
return 0;
}
static int lg_g15_input_open(struct input_dev *dev)
{
struct hid_device *hdev = input_get_drvdata(dev);
return hid_hw_open(hdev);
}
static void lg_g15_input_close(struct input_dev *dev)
{
struct hid_device *hdev = input_get_drvdata(dev);
hid_hw_close(hdev);
}
static int lg_g15_register_led(struct lg_g15_data *g15, int i, const char *name)
{
g15->leds[i].led = i;
g15->leds[i].cdev.name = name;
switch (g15->model) {
case LG_G15:
case LG_G15_V2:
g15->leds[i].cdev.brightness_get = lg_g15_led_get;
fallthrough;
case LG_Z10:
g15->leds[i].cdev.brightness_set_blocking = lg_g15_led_set;
if (i < LG_G15_BRIGHTNESS_MAX) {
g15->leds[i].cdev.flags = LED_BRIGHT_HW_CHANGED;
g15->leds[i].cdev.max_brightness = 2;
} else {
g15->leds[i].cdev.max_brightness = 1;
}
break;
case LG_G510:
case LG_G510_USB_AUDIO:
switch (i) {
case LG_G15_LCD_BRIGHTNESS:
/*
* The G510 does not have a separate LCD brightness,
* but it does have a separate power-on (reset) value.
*/
g15->leds[i].cdev.name = "g15::power_on_backlight_val";
fallthrough;
case LG_G15_KBD_BRIGHTNESS:
g15->leds[i].cdev.brightness_set_blocking =
lg_g510_kbd_led_set;
g15->leds[i].cdev.brightness_get =
lg_g510_kbd_led_get;
g15->leds[i].cdev.max_brightness = 255;
g15->leds[i].cdev.groups = lg_g510_kbd_led_groups;
break;
default:
g15->leds[i].cdev.brightness_set_blocking =
lg_g510_mkey_led_set;
g15->leds[i].cdev.brightness_get =
lg_g510_mkey_led_get;
g15->leds[i].cdev.max_brightness = 1;
}
break;
}
return devm_led_classdev_register(&g15->hdev->dev, &g15->leds[i].cdev);
}
/* Common input device init code shared between keyboards and Z-10 speaker handling */
static void lg_g15_init_input_dev(struct hid_device *hdev, struct input_dev *input,
const char *name)
{
int i;
input->name = name;
input->phys = hdev->phys;
input->uniq = hdev->uniq;
input->id.bustype = hdev->bus;
input->id.vendor = hdev->vendor;
input->id.product = hdev->product;
input->id.version = hdev->version;
input->dev.parent = &hdev->dev;
input->open = lg_g15_input_open;
input->close = lg_g15_input_close;
/* Keys below the LCD, intended for controlling a menu on the LCD */
for (i = 0; i < 5; i++)
input_set_capability(input, EV_KEY, KEY_KBD_LCD_MENU1 + i);
}
static int lg_g15_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
static const char * const led_names[] = {
"g15::kbd_backlight",
"g15::lcd_backlight",
"g15::macro_preset1",
"g15::macro_preset2",
"g15::macro_preset3",
"g15::macro_record",
};
u8 gkeys_settings_output_report = 0;
u8 gkeys_settings_feature_report = 0;
struct hid_report_enum *rep_enum;
unsigned int connect_mask = 0;
bool has_ff000000 = false;
struct lg_g15_data *g15;
struct input_dev *input;
struct hid_report *rep;
int ret, i, gkeys = 0;
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret)
return ret;
/*
* Some models have multiple interfaces, we want the interface with
* the f000.0000 application input report.
*/
rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list) {
if (rep->application == 0xff000000)
has_ff000000 = true;
}
if (!has_ff000000)
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
g15 = devm_kzalloc(&hdev->dev, sizeof(*g15), GFP_KERNEL);
if (!g15)
return -ENOMEM;
mutex_init(&g15->mutex);
input = devm_input_allocate_device(&hdev->dev);
if (!input)
return -ENOMEM;
g15->hdev = hdev;
g15->model = id->driver_data;
g15->input = input;
input_set_drvdata(input, hdev);
hid_set_drvdata(hdev, (void *)g15);
switch (g15->model) {
case LG_G15:
INIT_WORK(&g15->work, lg_g15_leds_changed_work);
/*
* The G15 and G15 v2 use a separate usb-device (on a builtin
* hub) which emulates a keyboard for the F1 - F12 emulation
* on the G-keys, which we disable, rendering the emulated kbd
* non-functional, so we do not let hid-input connect.
*/
connect_mask = HID_CONNECT_HIDRAW;
gkeys_settings_output_report = 0x02;
gkeys = 18;
break;
case LG_G15_V2:
INIT_WORK(&g15->work, lg_g15_leds_changed_work);
connect_mask = HID_CONNECT_HIDRAW;
gkeys_settings_output_report = 0x02;
gkeys = 6;
break;
case LG_G510:
case LG_G510_USB_AUDIO:
INIT_WORK(&g15->work, lg_g510_leds_sync_work);
connect_mask = HID_CONNECT_HIDINPUT | HID_CONNECT_HIDRAW;
gkeys_settings_feature_report = 0x01;
gkeys = 18;
break;
case LG_Z10:
connect_mask = HID_CONNECT_HIDRAW;
break;
}
ret = hid_hw_start(hdev, connect_mask);
if (ret)
return ret;
/* Tell the keyboard to stop sending F1-F12 + 1-6 for G1 - G18 */
if (gkeys_settings_output_report) {
g15->transfer_buf[0] = gkeys_settings_output_report;
memset(g15->transfer_buf + 1, 0, gkeys);
/*
* The kbd ignores our output report if we do not queue
* an URB on the USB input endpoint first...
*/
ret = hid_hw_open(hdev);
if (ret)
goto error_hw_stop;
ret = hid_hw_output_report(hdev, g15->transfer_buf, gkeys + 1);
hid_hw_close(hdev);
}
if (gkeys_settings_feature_report) {
g15->transfer_buf[0] = gkeys_settings_feature_report;
memset(g15->transfer_buf + 1, 0, gkeys);
ret = hid_hw_raw_request(g15->hdev,
gkeys_settings_feature_report,
g15->transfer_buf, gkeys + 1,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
}
if (ret < 0) {
hid_err(hdev, "Error %d disabling keyboard emulation for the G-keys, falling back to generic hid-input driver\n",
ret);
hid_set_drvdata(hdev, NULL);
return 0;
}
/* Get initial brightness levels */
ret = lg_g15_get_initial_led_brightness(g15);
if (ret)
goto error_hw_stop;
if (g15->model == LG_Z10) {
lg_g15_init_input_dev(hdev, g15->input, "Logitech Z-10 LCD Menu Keys");
ret = input_register_device(g15->input);
if (ret)
goto error_hw_stop;
ret = lg_g15_register_led(g15, 1, "z-10::lcd_backlight");
if (ret)
goto error_hw_stop;
return 0; /* All done */
}
/* Setup and register input device */
lg_g15_init_input_dev(hdev, input, "Logitech Gaming Keyboard Gaming Keys");
/* G-keys */
for (i = 0; i < gkeys; i++)
input_set_capability(input, EV_KEY, KEY_MACRO1 + i);
/* M1 - M3 and MR keys */
for (i = 0; i < 3; i++)
input_set_capability(input, EV_KEY, KEY_MACRO_PRESET1 + i);
input_set_capability(input, EV_KEY, KEY_MACRO_RECORD_START);
/*
* On the G510 only report headphone and mic mute keys when *not* using
* the builtin USB audio device. When the builtin audio is used these
* keys directly toggle mute (and the LEDs) on/off.
*/
if (g15->model == LG_G510) {
input_set_capability(input, EV_KEY, KEY_MUTE);
/* Userspace expects F20 for micmute */
input_set_capability(input, EV_KEY, KEY_F20);
}
ret = input_register_device(input);
if (ret)
goto error_hw_stop;
/* Register LED devices */
for (i = 0; i < LG_G15_LED_MAX; i++) {
ret = lg_g15_register_led(g15, i, led_names[i]);
if (ret)
goto error_hw_stop;
}
return 0;
error_hw_stop:
hid_hw_stop(hdev);
return ret;
}
static const struct hid_device_id lg_g15_devices[] = {
/* The G11 is a G15 without the LCD, treat it as a G15 */
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G11),
.driver_data = LG_G15 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G15_LCD),
.driver_data = LG_G15 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G15_V2_LCD),
.driver_data = LG_G15_V2 },
/* G510 without a headset plugged in */
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G510),
.driver_data = LG_G510 },
/* G510 with headset plugged in / with extra USB audio interface */
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G510_USB_AUDIO),
.driver_data = LG_G510_USB_AUDIO },
/* Z-10 speakers */
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_Z_10_SPK),
.driver_data = LG_Z10 },
{ }
};
MODULE_DEVICE_TABLE(hid, lg_g15_devices);
static struct hid_driver lg_g15_driver = {
.name = "lg-g15",
.id_table = lg_g15_devices,
.raw_event = lg_g15_raw_event,
.probe = lg_g15_probe,
};
module_hid_driver(lg_g15_driver);
MODULE_AUTHOR("Hans de Goede <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-lg-g15.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some microsoft "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define MS_HIDINPUT BIT(0)
#define MS_ERGONOMY BIT(1)
#define MS_PRESENTER BIT(2)
#define MS_RDESC BIT(3)
#define MS_NOGET BIT(4)
#define MS_DUPLICATE_USAGES BIT(5)
#define MS_SURFACE_DIAL BIT(6)
#define MS_QUIRK_FF BIT(7)
struct ms_data {
unsigned long quirks;
struct hid_device *hdev;
struct work_struct ff_worker;
__u8 strong;
__u8 weak;
void *output_report_dmabuf;
};
#define XB1S_FF_REPORT 3
#define ENABLE_WEAK BIT(0)
#define ENABLE_STRONG BIT(1)
enum {
MAGNITUDE_STRONG = 2,
MAGNITUDE_WEAK,
MAGNITUDE_NUM
};
struct xb1s_ff_report {
__u8 report_id;
__u8 enable;
__u8 magnitude[MAGNITUDE_NUM];
__u8 duration_10ms;
__u8 start_delay_10ms;
__u8 loop_count;
} __packed;
static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
/*
* Microsoft Wireless Desktop Receiver (Model 1028) has
* 'Usage Min/Max' where it ought to have 'Physical Min/Max'
*/
if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
rdesc[559] == 0x29) {
hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
rdesc[557] = 0x35;
rdesc[559] = 0x45;
}
return rdesc;
}
#define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct input_dev *input = hi->input;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
switch (usage->hid & HID_USAGE) {
/*
* Microsoft uses these 2 reserved usage ids for 2 keys on
* the MS office kb labelled "Office Home" and "Task Pane".
*/
case 0x29d:
ms_map_key_clear(KEY_PROG1);
return 1;
case 0x29e:
ms_map_key_clear(KEY_PROG2);
return 1;
}
return 0;
}
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0xfd06: ms_map_key_clear(KEY_CHAT); break;
case 0xfd07: ms_map_key_clear(KEY_PHONE); break;
case 0xff00:
/* Special keypad keys */
ms_map_key_clear(KEY_KPEQUAL);
set_bit(KEY_KPLEFTPAREN, input->keybit);
set_bit(KEY_KPRIGHTPAREN, input->keybit);
break;
case 0xff01:
/* Scroll wheel */
hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL);
break;
case 0xff02:
/*
* This byte contains a copy of the modifier keys byte of a
* standard hid keyboard report, as send by interface 0
* (this usage is found on interface 1).
*
* This byte only gets send when another key in the same report
* changes state, and as such is useless, ignore it.
*/
return -1;
case 0xff05:
set_bit(EV_REP, input->evbit);
ms_map_key_clear(KEY_F13);
set_bit(KEY_F14, input->keybit);
set_bit(KEY_F15, input->keybit);
set_bit(KEY_F16, input->keybit);
set_bit(KEY_F17, input->keybit);
set_bit(KEY_F18, input->keybit);
break;
default:
return 0;
}
return 1;
}
static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xfd08: ms_map_key_clear(KEY_FORWARD); break;
case 0xfd09: ms_map_key_clear(KEY_BACK); break;
case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE); break;
case 0xfd0e: ms_map_key_clear(KEY_CLOSE); break;
case 0xfd0f: ms_map_key_clear(KEY_PLAY); break;
default:
return 0;
}
return 1;
}
static int ms_surface_dial_quirk(struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
switch (usage->hid & HID_USAGE_PAGE) {
case 0xff070000:
case HID_UP_DIGITIZER:
/* ignore those axis */
return -1;
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
case HID_GD_Y:
case HID_GD_RFKILL_BTN:
/* ignore those axis */
return -1;
}
}
return 0;
}
static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
if (quirks & MS_ERGONOMY) {
int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
if (ret)
return ret;
}
if ((quirks & MS_PRESENTER) &&
ms_presenter_8k_quirk(hi, usage, bit, max))
return 1;
if (quirks & MS_SURFACE_DIAL) {
int ret = ms_surface_dial_quirk(hi, field, usage, bit, max);
if (ret)
return ret;
}
return 0;
}
static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
if (quirks & MS_DUPLICATE_USAGES)
clear_bit(usage->code, *bit);
return 0;
}
static int ms_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
struct input_dev *input;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
input = field->hidinput->input;
/* Handling MS keyboards special buttons */
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) {
/* Special keypad keys */
input_report_key(input, KEY_KPEQUAL, value & 0x01);
input_report_key(input, KEY_KPLEFTPAREN, value & 0x02);
input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04);
return 1;
}
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) {
/* Scroll wheel */
int step = ((value & 0x60) >> 5) + 1;
switch (value & 0x1f) {
case 0x01:
input_report_rel(input, REL_WHEEL, step);
break;
case 0x1f:
input_report_rel(input, REL_WHEEL, -step);
break;
}
return 1;
}
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
static unsigned int last_key = 0;
unsigned int key = 0;
switch (value) {
case 0x01: key = KEY_F14; break;
case 0x02: key = KEY_F15; break;
case 0x04: key = KEY_F16; break;
case 0x08: key = KEY_F17; break;
case 0x10: key = KEY_F18; break;
}
if (key) {
input_event(input, usage->type, key, 1);
last_key = key;
} else
input_event(input, usage->type, last_key, 0);
return 1;
}
return 0;
}
static void ms_ff_worker(struct work_struct *work)
{
struct ms_data *ms = container_of(work, struct ms_data, ff_worker);
struct hid_device *hdev = ms->hdev;
struct xb1s_ff_report *r = ms->output_report_dmabuf;
int ret;
memset(r, 0, sizeof(*r));
r->report_id = XB1S_FF_REPORT;
r->enable = ENABLE_WEAK | ENABLE_STRONG;
/*
* Specifying maximum duration and maximum loop count should
* cover maximum duration of a single effect, which is 65536
* ms
*/
r->duration_10ms = U8_MAX;
r->loop_count = U8_MAX;
r->magnitude[MAGNITUDE_STRONG] = ms->strong; /* left actuator */
r->magnitude[MAGNITUDE_WEAK] = ms->weak; /* right actuator */
ret = hid_hw_output_report(hdev, (__u8 *)r, sizeof(*r));
if (ret < 0)
hid_warn(hdev, "failed to send FF report\n");
}
static int ms_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct ms_data *ms = hid_get_drvdata(hid);
if (effect->type != FF_RUMBLE)
return 0;
/*
* Magnitude is 0..100 so scale the 16-bit input here
*/
ms->strong = ((u32) effect->u.rumble.strong_magnitude * 100) / U16_MAX;
ms->weak = ((u32) effect->u.rumble.weak_magnitude * 100) / U16_MAX;
schedule_work(&ms->ff_worker);
return 0;
}
static int ms_init_ff(struct hid_device *hdev)
{
struct hid_input *hidinput;
struct input_dev *input_dev;
struct ms_data *ms = hid_get_drvdata(hdev);
if (list_empty(&hdev->inputs)) {
hid_err(hdev, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
input_dev = hidinput->input;
if (!(ms->quirks & MS_QUIRK_FF))
return 0;
ms->hdev = hdev;
INIT_WORK(&ms->ff_worker, ms_ff_worker);
ms->output_report_dmabuf = devm_kzalloc(&hdev->dev,
sizeof(struct xb1s_ff_report),
GFP_KERNEL);
if (ms->output_report_dmabuf == NULL)
return -ENOMEM;
input_set_capability(input_dev, EV_FF, FF_RUMBLE);
return input_ff_create_memless(input_dev, NULL, ms_play_effect);
}
static void ms_remove_ff(struct hid_device *hdev)
{
struct ms_data *ms = hid_get_drvdata(hdev);
if (!(ms->quirks & MS_QUIRK_FF))
return;
cancel_work_sync(&ms->ff_worker);
}
static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct ms_data *ms;
int ret;
ms = devm_kzalloc(&hdev->dev, sizeof(*ms), GFP_KERNEL);
if (ms == NULL)
return -ENOMEM;
ms->quirks = quirks;
hid_set_drvdata(hdev, ms);
if (quirks & MS_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
if (quirks & MS_SURFACE_DIAL)
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
HID_CONNECT_HIDINPUT_FORCE : 0));
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
ret = ms_init_ff(hdev);
if (ret)
hid_err(hdev, "could not initialize ff, continuing anyway");
return 0;
err_free:
return ret;
}
static void ms_remove(struct hid_device *hdev)
{
hid_hw_stop(hdev);
ms_remove_ff(hdev);
}
static const struct hid_device_id ms_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
.driver_data = MS_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
.driver_data = MS_ERGONOMY | MS_RDESC },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
.driver_data = MS_PRESENTER },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
.driver_data = MS_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
.driver_data = MS_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
.driver_data = MS_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
.driver_data = MS_ERGONOMY},
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
.driver_data = MS_PRESENTER },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B),
.driver_data = MS_SURFACE_DIAL },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1708_BLE),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1914),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_CONTROLLER_MODEL_1797_BLE),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
.driver_data = MS_QUIRK_FF },
{ }
};
MODULE_DEVICE_TABLE(hid, ms_devices);
static struct hid_driver ms_driver = {
.name = "microsoft",
.id_table = ms_devices,
.report_fixup = ms_report_fixup,
.input_mapping = ms_input_mapping,
.input_mapped = ms_input_mapped,
.event = ms_event,
.probe = ms_probe,
.remove = ms_remove,
};
module_hid_driver(ms_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-microsoft.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2000-2001 Vojtech Pavlik
* Copyright (c) 2006-2010 Jiri Kosina
*
* HID to Linux Input mapping
*/
/*
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <[email protected]>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/hid-debug.h>
#include "hid-ids.h"
#define unk KEY_UNKNOWN
static const unsigned char hid_keyboard[256] = {
0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
};
static const struct {
__s32 x;
__s32 y;
} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
struct usage_priority {
__u32 usage; /* the HID usage associated */
bool global; /* we assume all usages to be slotted,
* unless global
*/
unsigned int slot_overwrite; /* for globals: allows to set the usage
* before or after the slots
*/
};
/*
* hid-input will convert this list into priorities:
* the first element will have the highest priority
* (the length of the following array) and the last
* element the lowest (1).
*
* hid-input will then shift the priority by 8 bits to leave some space
* in case drivers want to interleave other fields.
*
* To accommodate slotted devices, the slot priority is
* defined in the next 8 bits (defined by 0xff - slot).
*
* If drivers want to add fields before those, hid-input will
* leave out the first 8 bits of the priority value.
*
* This still leaves us 65535 individual priority values.
*/
static const struct usage_priority hidinput_usages_priorities[] = {
{ /* Eraser (eraser touching) must always come before tipswitch */
.usage = HID_DG_ERASER,
},
{ /* Invert must always come before In Range */
.usage = HID_DG_INVERT,
},
{ /* Is the tip of the tool touching? */
.usage = HID_DG_TIPSWITCH,
},
{ /* Tip Pressure might emulate tip switch */
.usage = HID_DG_TIPPRESSURE,
},
{ /* In Range needs to come after the other tool states */
.usage = HID_DG_INRANGE,
},
};
#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
#define map_msc(c) hid_map_usage(hidinput, usage, &bit, &max, EV_MSC, (c))
#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
&max, EV_ABS, (c))
#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
&max, EV_KEY, (c))
static bool match_scancode(struct hid_usage *usage,
unsigned int cur_idx, unsigned int scancode)
{
return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
}
static bool match_keycode(struct hid_usage *usage,
unsigned int cur_idx, unsigned int keycode)
{
/*
* We should exclude unmapped usages when doing lookup by keycode.
*/
return (usage->type == EV_KEY && usage->code == keycode);
}
static bool match_index(struct hid_usage *usage,
unsigned int cur_idx, unsigned int idx)
{
return cur_idx == idx;
}
typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
unsigned int cur_idx, unsigned int val);
static struct hid_usage *hidinput_find_key(struct hid_device *hid,
hid_usage_cmp_t match,
unsigned int value,
unsigned int *usage_idx)
{
unsigned int i, j, k, cur_idx = 0;
struct hid_report *report;
struct hid_usage *usage;
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->maxusage; j++) {
usage = report->field[i]->usage + j;
if (usage->type == EV_KEY || usage->type == 0) {
if (match(usage, cur_idx, value)) {
if (usage_idx)
*usage_idx = cur_idx;
return usage;
}
cur_idx++;
}
}
}
}
}
return NULL;
}
static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
const struct input_keymap_entry *ke,
unsigned int *index)
{
struct hid_usage *usage;
unsigned int scancode;
if (ke->flags & INPUT_KEYMAP_BY_INDEX)
usage = hidinput_find_key(hid, match_index, ke->index, index);
else if (input_scancode_to_scalar(ke, &scancode) == 0)
usage = hidinput_find_key(hid, match_scancode, scancode, index);
else
usage = NULL;
return usage;
}
static int hidinput_getkeycode(struct input_dev *dev,
struct input_keymap_entry *ke)
{
struct hid_device *hid = input_get_drvdata(dev);
struct hid_usage *usage;
unsigned int scancode, index;
usage = hidinput_locate_usage(hid, ke, &index);
if (usage) {
ke->keycode = usage->type == EV_KEY ?
usage->code : KEY_RESERVED;
ke->index = index;
scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
ke->len = sizeof(scancode);
memcpy(ke->scancode, &scancode, sizeof(scancode));
return 0;
}
return -EINVAL;
}
static int hidinput_setkeycode(struct input_dev *dev,
const struct input_keymap_entry *ke,
unsigned int *old_keycode)
{
struct hid_device *hid = input_get_drvdata(dev);
struct hid_usage *usage;
usage = hidinput_locate_usage(hid, ke, NULL);
if (usage) {
*old_keycode = usage->type == EV_KEY ?
usage->code : KEY_RESERVED;
usage->type = EV_KEY;
usage->code = ke->keycode;
clear_bit(*old_keycode, dev->keybit);
set_bit(usage->code, dev->keybit);
dbg_hid("Assigned keycode %d to HID usage code %x\n",
usage->code, usage->hid);
/*
* Set the keybit for the old keycode if the old keycode is used
* by another key
*/
if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
set_bit(*old_keycode, dev->keybit);
return 0;
}
return -EINVAL;
}
/**
* hidinput_calc_abs_res - calculate an absolute axis resolution
* @field: the HID report field to calculate resolution for
* @code: axis code
*
* The formula is:
* (logical_maximum - logical_minimum)
* resolution = ----------------------------------------------------------
* (physical_maximum - physical_minimum) * 10 ^ unit_exponent
*
* as seen in the HID specification v1.11 6.2.2.7 Global Items.
*
* Only exponent 1 length units are processed. Centimeters and inches are
* converted to millimeters. Degrees are converted to radians.
*/
__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
{
__s32 unit_exponent = field->unit_exponent;
__s32 logical_extents = field->logical_maximum -
field->logical_minimum;
__s32 physical_extents = field->physical_maximum -
field->physical_minimum;
__s32 prev;
/* Check if the extents are sane */
if (logical_extents <= 0 || physical_extents <= 0)
return 0;
/*
* Verify and convert units.
* See HID specification v1.11 6.2.2.7 Global Items for unit decoding
*/
switch (code) {
case ABS_X:
case ABS_Y:
case ABS_Z:
case ABS_MT_POSITION_X:
case ABS_MT_POSITION_Y:
case ABS_MT_TOOL_X:
case ABS_MT_TOOL_Y:
case ABS_MT_TOUCH_MAJOR:
case ABS_MT_TOUCH_MINOR:
if (field->unit == 0x11) { /* If centimeters */
/* Convert to millimeters */
unit_exponent += 1;
} else if (field->unit == 0x13) { /* If inches */
/* Convert to millimeters */
prev = physical_extents;
physical_extents *= 254;
if (physical_extents < prev)
return 0;
unit_exponent -= 1;
} else {
return 0;
}
break;
case ABS_RX:
case ABS_RY:
case ABS_RZ:
case ABS_WHEEL:
case ABS_TILT_X:
case ABS_TILT_Y:
if (field->unit == 0x14) { /* If degrees */
/* Convert to radians */
prev = logical_extents;
logical_extents *= 573;
if (logical_extents < prev)
return 0;
unit_exponent += 1;
} else if (field->unit != 0x12) { /* If not radians */
return 0;
}
break;
default:
return 0;
}
/* Apply negative unit exponent */
for (; unit_exponent < 0; unit_exponent++) {
prev = logical_extents;
logical_extents *= 10;
if (logical_extents < prev)
return 0;
}
/* Apply positive unit exponent */
for (; unit_exponent > 0; unit_exponent--) {
prev = physical_extents;
physical_extents *= 10;
if (physical_extents < prev)
return 0;
}
/* Calculate resolution */
return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
}
EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
#ifdef CONFIG_HID_BATTERY_STRENGTH
static enum power_supply_property hidinput_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_SCOPE,
};
#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */
#define HID_BATTERY_QUIRK_AVOID_QUERY (1 << 3) /* do not query the battery */
static const struct hid_device_id hid_battery_quirks[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD),
HID_BATTERY_QUIRK_IGNORE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
USB_DEVICE_ID_ELECOM_BM084),
HID_BATTERY_QUIRK_IGNORE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL,
USB_DEVICE_ID_SYMBOL_SCANNER_3),
HID_BATTERY_QUIRK_IGNORE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD),
HID_BATTERY_QUIRK_IGNORE },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_ASUS_TP420IA_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_ASUS_GV301RA_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L),
HID_BATTERY_QUIRK_AVOID_QUERY },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW),
HID_BATTERY_QUIRK_AVOID_QUERY },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW),
HID_BATTERY_QUIRK_AVOID_QUERY },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_15),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_15T_DR100),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_ENVY_X360_EU0009NV),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_13_AW0020NG),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_13T_AW100),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V1),
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V2),
HID_BATTERY_QUIRK_IGNORE },
{}
};
static unsigned find_battery_quirk(struct hid_device *hdev)
{
unsigned quirks = 0;
const struct hid_device_id *match;
match = hid_match_id(hdev, hid_battery_quirks);
if (match != NULL)
quirks = match->driver_data;
return quirks;
}
static int hidinput_scale_battery_capacity(struct hid_device *dev,
int value)
{
if (dev->battery_min < dev->battery_max &&
value >= dev->battery_min && value <= dev->battery_max)
value = ((value - dev->battery_min) * 100) /
(dev->battery_max - dev->battery_min);
return value;
}
static int hidinput_query_battery_capacity(struct hid_device *dev)
{
u8 *buf;
int ret;
buf = kmalloc(4, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
dev->battery_report_type, HID_REQ_GET_REPORT);
if (ret < 2) {
kfree(buf);
return -ENODATA;
}
ret = hidinput_scale_battery_capacity(dev, buf[1]);
kfree(buf);
return ret;
}
static int hidinput_get_battery_property(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct hid_device *dev = power_supply_get_drvdata(psy);
int value;
int ret = 0;
switch (prop) {
case POWER_SUPPLY_PROP_PRESENT:
case POWER_SUPPLY_PROP_ONLINE:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_CAPACITY:
if (dev->battery_status != HID_BATTERY_REPORTED &&
!dev->battery_avoid_query) {
value = hidinput_query_battery_capacity(dev);
if (value < 0)
return value;
} else {
value = dev->battery_capacity;
}
val->intval = value;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = dev->name;
break;
case POWER_SUPPLY_PROP_STATUS:
if (dev->battery_status != HID_BATTERY_REPORTED &&
!dev->battery_avoid_query) {
value = hidinput_query_battery_capacity(dev);
if (value < 0)
return value;
dev->battery_capacity = value;
dev->battery_status = HID_BATTERY_QUERIED;
}
if (dev->battery_status == HID_BATTERY_UNKNOWN)
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
else
val->intval = dev->battery_charge_status;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
struct hid_field *field, bool is_percentage)
{
struct power_supply_desc *psy_desc;
struct power_supply_config psy_cfg = { .drv_data = dev, };
unsigned quirks;
s32 min, max;
int error;
if (dev->battery)
return 0; /* already initialized? */
quirks = find_battery_quirk(dev);
hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
dev->bus, dev->vendor, dev->product, dev->version, quirks);
if (quirks & HID_BATTERY_QUIRK_IGNORE)
return 0;
psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
if (!psy_desc)
return -ENOMEM;
psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
strlen(dev->uniq) ?
dev->uniq : dev_name(&dev->dev));
if (!psy_desc->name) {
error = -ENOMEM;
goto err_free_mem;
}
psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
psy_desc->properties = hidinput_battery_props;
psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
psy_desc->use_for_apm = 0;
psy_desc->get_property = hidinput_get_battery_property;
min = field->logical_minimum;
max = field->logical_maximum;
if (is_percentage || (quirks & HID_BATTERY_QUIRK_PERCENT)) {
min = 0;
max = 100;
}
if (quirks & HID_BATTERY_QUIRK_FEATURE)
report_type = HID_FEATURE_REPORT;
dev->battery_min = min;
dev->battery_max = max;
dev->battery_report_type = report_type;
dev->battery_report_id = field->report->id;
dev->battery_charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
/*
* Stylus is normally not connected to the device and thus we
* can't query the device and get meaningful battery strength.
* We have to wait for the device to report it on its own.
*/
dev->battery_avoid_query = report_type == HID_INPUT_REPORT &&
field->physical == HID_DG_STYLUS;
if (quirks & HID_BATTERY_QUIRK_AVOID_QUERY)
dev->battery_avoid_query = true;
dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
if (IS_ERR(dev->battery)) {
error = PTR_ERR(dev->battery);
hid_warn(dev, "can't register power supply: %d\n", error);
goto err_free_name;
}
power_supply_powers(dev->battery, &dev->dev);
return 0;
err_free_name:
kfree(psy_desc->name);
err_free_mem:
kfree(psy_desc);
dev->battery = NULL;
return error;
}
static void hidinput_cleanup_battery(struct hid_device *dev)
{
const struct power_supply_desc *psy_desc;
if (!dev->battery)
return;
psy_desc = dev->battery->desc;
power_supply_unregister(dev->battery);
kfree(psy_desc->name);
kfree(psy_desc);
dev->battery = NULL;
}
static void hidinput_update_battery(struct hid_device *dev, int value)
{
int capacity;
if (!dev->battery)
return;
if (value == 0 || value < dev->battery_min || value > dev->battery_max)
return;
capacity = hidinput_scale_battery_capacity(dev, value);
if (dev->battery_status != HID_BATTERY_REPORTED ||
capacity != dev->battery_capacity ||
ktime_after(ktime_get_coarse(), dev->battery_ratelimit_time)) {
dev->battery_capacity = capacity;
dev->battery_status = HID_BATTERY_REPORTED;
dev->battery_ratelimit_time =
ktime_add_ms(ktime_get_coarse(), 30 * 1000);
power_supply_changed(dev->battery);
}
}
static bool hidinput_set_battery_charge_status(struct hid_device *dev,
unsigned int usage, int value)
{
switch (usage) {
case HID_BAT_CHARGING:
dev->battery_charge_status = value ?
POWER_SUPPLY_STATUS_CHARGING :
POWER_SUPPLY_STATUS_DISCHARGING;
return true;
}
return false;
}
#else /* !CONFIG_HID_BATTERY_STRENGTH */
static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
struct hid_field *field, bool is_percentage)
{
return 0;
}
static void hidinput_cleanup_battery(struct hid_device *dev)
{
}
static void hidinput_update_battery(struct hid_device *dev, int value)
{
}
static bool hidinput_set_battery_charge_status(struct hid_device *dev,
unsigned int usage, int value)
{
return false;
}
#endif /* CONFIG_HID_BATTERY_STRENGTH */
static bool hidinput_field_in_collection(struct hid_device *device, struct hid_field *field,
unsigned int type, unsigned int usage)
{
struct hid_collection *collection;
collection = &device->collection[field->usage->collection_index];
return collection->type == type && collection->usage == usage;
}
static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
struct hid_usage *usage, unsigned int usage_index)
{
struct input_dev *input = hidinput->input;
struct hid_device *device = input_get_drvdata(input);
const struct usage_priority *usage_priority = NULL;
int max = 0, code;
unsigned int i = 0;
unsigned long *bit = NULL;
field->hidinput = hidinput;
if (field->flags & HID_MAIN_ITEM_CONSTANT)
goto ignore;
/* Ignore if report count is out of bounds. */
if (field->report_count < 1)
goto ignore;
/* only LED usages are supported in output fields */
if (field->report_type == HID_OUTPUT_REPORT &&
(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
goto ignore;
}
/* assign a priority based on the static list declared here */
for (i = 0; i < ARRAY_SIZE(hidinput_usages_priorities); i++) {
if (usage->hid == hidinput_usages_priorities[i].usage) {
usage_priority = &hidinput_usages_priorities[i];
field->usages_priorities[usage_index] =
(ARRAY_SIZE(hidinput_usages_priorities) - i) << 8;
break;
}
}
/*
* For slotted devices, we need to also add the slot index
* in the priority.
*/
if (usage_priority && usage_priority->global)
field->usages_priorities[usage_index] |=
usage_priority->slot_overwrite;
else
field->usages_priorities[usage_index] |=
(0xff - field->slot_idx) << 16;
if (device->driver->input_mapping) {
int ret = device->driver->input_mapping(device, hidinput, field,
usage, &bit, &max);
if (ret > 0)
goto mapped;
if (ret < 0)
goto ignore;
}
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_UNDEFINED:
goto ignore;
case HID_UP_KEYBOARD:
set_bit(EV_REP, input->evbit);
if ((usage->hid & HID_USAGE) < 256) {
if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
} else
map_key(KEY_UNKNOWN);
break;
case HID_UP_BUTTON:
code = ((usage->hid - 1) & HID_USAGE);
switch (field->application) {
case HID_GD_MOUSE:
case HID_GD_POINTER: code += BTN_MOUSE; break;
case HID_GD_JOYSTICK:
if (code <= 0xf)
code += BTN_JOYSTICK;
else
code += BTN_TRIGGER_HAPPY - 0x10;
break;
case HID_GD_GAMEPAD:
if (code <= 0xf)
code += BTN_GAMEPAD;
else
code += BTN_TRIGGER_HAPPY - 0x10;
break;
case HID_CP_CONSUMER_CONTROL:
if (hidinput_field_in_collection(device, field,
HID_COLLECTION_NAMED_ARRAY,
HID_CP_PROGRAMMABLEBUTTONS)) {
if (code <= 0x1d)
code += KEY_MACRO1;
else
code += BTN_TRIGGER_HAPPY - 0x1e;
break;
}
fallthrough;
default:
switch (field->physical) {
case HID_GD_MOUSE:
case HID_GD_POINTER: code += BTN_MOUSE; break;
case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
default: code += BTN_MISC;
}
}
map_key(code);
break;
case HID_UP_SIMULATION:
switch (usage->hid & 0xffff) {
case 0xba: map_abs(ABS_RUDDER); break;
case 0xbb: map_abs(ABS_THROTTLE); break;
case 0xc4: map_abs(ABS_GAS); break;
case 0xc5: map_abs(ABS_BRAKE); break;
case 0xc8: map_abs(ABS_WHEEL); break;
default: goto ignore;
}
break;
case HID_UP_GENDESK:
if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
switch (usage->hid & 0xf) {
case 0x1: map_key_clear(KEY_POWER); break;
case 0x2: map_key_clear(KEY_SLEEP); break;
case 0x3: map_key_clear(KEY_WAKEUP); break;
case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
case 0x5: map_key_clear(KEY_MENU); break;
case 0x6: map_key_clear(KEY_PROG1); break;
case 0x7: map_key_clear(KEY_HELP); break;
case 0x8: map_key_clear(KEY_EXIT); break;
case 0x9: map_key_clear(KEY_SELECT); break;
case 0xa: map_key_clear(KEY_RIGHT); break;
case 0xb: map_key_clear(KEY_LEFT); break;
case 0xc: map_key_clear(KEY_UP); break;
case 0xd: map_key_clear(KEY_DOWN); break;
case 0xe: map_key_clear(KEY_POWER2); break;
case 0xf: map_key_clear(KEY_RESTART); break;
default: goto unknown;
}
break;
}
if ((usage->hid & 0xf0) == 0xa0) { /* SystemControl */
switch (usage->hid & 0xf) {
case 0x9: map_key_clear(KEY_MICMUTE); break;
default: goto ignore;
}
break;
}
if ((usage->hid & 0xf0) == 0xb0) { /* SC - Display */
switch (usage->hid & 0xf) {
case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
default: goto ignore;
}
break;
}
/*
* Some lazy vendors declare 255 usages for System Control,
* leading to the creation of ABS_X|Y axis and too many others.
* It wouldn't be a problem if joydev doesn't consider the
* device as a joystick then.
*/
if (field->application == HID_GD_SYSTEM_CONTROL)
goto ignore;
if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
switch (usage->hid) {
case HID_GD_UP: usage->hat_dir = 1; break;
case HID_GD_DOWN: usage->hat_dir = 5; break;
case HID_GD_RIGHT: usage->hat_dir = 3; break;
case HID_GD_LEFT: usage->hat_dir = 7; break;
default: goto unknown;
}
if (field->dpad) {
map_abs(field->dpad);
goto ignore;
}
map_abs(ABS_HAT0X);
break;
}
switch (usage->hid) {
/* These usage IDs map directly to the usage codes. */
case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
if (field->flags & HID_MAIN_ITEM_RELATIVE)
map_rel(usage->hid & 0xf);
else
map_abs_clear(usage->hid & 0xf);
break;
case HID_GD_WHEEL:
if (field->flags & HID_MAIN_ITEM_RELATIVE) {
set_bit(REL_WHEEL, input->relbit);
map_rel(REL_WHEEL_HI_RES);
} else {
map_abs(usage->hid & 0xf);
}
break;
case HID_GD_SLIDER: case HID_GD_DIAL:
if (field->flags & HID_MAIN_ITEM_RELATIVE)
map_rel(usage->hid & 0xf);
else
map_abs(usage->hid & 0xf);
break;
case HID_GD_HATSWITCH:
usage->hat_min = field->logical_minimum;
usage->hat_max = field->logical_maximum;
map_abs(ABS_HAT0X);
break;
case HID_GD_START: map_key_clear(BTN_START); break;
case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
case HID_GD_RFKILL_BTN:
/* MS wireless radio ctl extension, also check CA */
if (field->application == HID_GD_WIRELESS_RADIO_CTLS) {
map_key_clear(KEY_RFKILL);
/* We need to simulate the btn release */
field->flags |= HID_MAIN_ITEM_RELATIVE;
break;
}
goto unknown;
default: goto unknown;
}
break;
case HID_UP_LED:
switch (usage->hid & 0xffff) { /* HID-Value: */
case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
case 0x05: map_led (LED_KANA); break; /* "Kana" */
case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
case 0x09: map_led (LED_MUTE); break; /* "Mute" */
case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
default: goto ignore;
}
break;
case HID_UP_DIGITIZER:
if ((field->application & 0xff) == 0x01) /* Digitizer */
__set_bit(INPUT_PROP_POINTER, input->propbit);
else if ((field->application & 0xff) == 0x02) /* Pen */
__set_bit(INPUT_PROP_DIRECT, input->propbit);
switch (usage->hid & 0xff) {
case 0x00: /* Undefined */
goto ignore;
case 0x30: /* TipPressure */
if (!test_bit(BTN_TOUCH, input->keybit)) {
device->quirks |= HID_QUIRK_NOTOUCH;
set_bit(EV_KEY, input->evbit);
set_bit(BTN_TOUCH, input->keybit);
}
map_abs_clear(ABS_PRESSURE);
break;
case 0x32: /* InRange */
switch (field->physical) {
case HID_DG_PUCK:
map_key(BTN_TOOL_MOUSE);
break;
case HID_DG_FINGER:
map_key(BTN_TOOL_FINGER);
break;
default:
/*
* If the physical is not given,
* rely on the application.
*/
if (!field->physical) {
switch (field->application) {
case HID_DG_TOUCHSCREEN:
case HID_DG_TOUCHPAD:
map_key_clear(BTN_TOOL_FINGER);
break;
default:
map_key_clear(BTN_TOOL_PEN);
}
} else {
map_key(BTN_TOOL_PEN);
}
break;
}
break;
case 0x3b: /* Battery Strength */
hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
usage->type = EV_PWR;
return;
case 0x3c: /* Invert */
device->quirks &= ~HID_QUIRK_NOINVERT;
map_key_clear(BTN_TOOL_RUBBER);
break;
case 0x3d: /* X Tilt */
map_abs_clear(ABS_TILT_X);
break;
case 0x3e: /* Y Tilt */
map_abs_clear(ABS_TILT_Y);
break;
case 0x33: /* Touch */
case 0x42: /* TipSwitch */
case 0x43: /* TipSwitch2 */
device->quirks &= ~HID_QUIRK_NOTOUCH;
map_key_clear(BTN_TOUCH);
break;
case 0x44: /* BarrelSwitch */
map_key_clear(BTN_STYLUS);
break;
case 0x45: /* ERASER */
/*
* This event is reported when eraser tip touches the surface.
* Actual eraser (BTN_TOOL_RUBBER) is set and released either
* by Invert if tool reports proximity or by Eraser directly.
*/
if (!test_bit(BTN_TOOL_RUBBER, input->keybit)) {
device->quirks |= HID_QUIRK_NOINVERT;
set_bit(BTN_TOOL_RUBBER, input->keybit);
}
map_key_clear(BTN_TOUCH);
break;
case 0x46: /* TabletPick */
case 0x5a: /* SecondaryBarrelSwitch */
map_key_clear(BTN_STYLUS2);
break;
case 0x5b: /* TransducerSerialNumber */
case 0x6e: /* TransducerSerialNumber2 */
map_msc(MSC_SERIAL);
break;
default: goto unknown;
}
break;
case HID_UP_TELEPHONY:
switch (usage->hid & HID_USAGE) {
case 0x2f: map_key_clear(KEY_MICMUTE); break;
case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
default: goto ignore;
}
break;
case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
switch (usage->hid & HID_USAGE) {
case 0x000: goto ignore;
case 0x030: map_key_clear(KEY_POWER); break;
case 0x031: map_key_clear(KEY_RESTART); break;
case 0x032: map_key_clear(KEY_SLEEP); break;
case 0x034: map_key_clear(KEY_SLEEP); break;
case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
case 0x036: map_key_clear(BTN_MISC); break;
case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
case 0x069: map_key_clear(KEY_RED); break;
case 0x06a: map_key_clear(KEY_GREEN); break;
case 0x06b: map_key_clear(KEY_BLUE); break;
case 0x06c: map_key_clear(KEY_YELLOW); break;
case 0x06d: map_key_clear(KEY_ASPECT_RATIO); break;
case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
case 0x076: map_key_clear(KEY_CAMERA_ACCESS_ENABLE); break;
case 0x077: map_key_clear(KEY_CAMERA_ACCESS_DISABLE); break;
case 0x078: map_key_clear(KEY_CAMERA_ACCESS_TOGGLE); break;
case 0x079: map_key_clear(KEY_KBDILLUMUP); break;
case 0x07a: map_key_clear(KEY_KBDILLUMDOWN); break;
case 0x07c: map_key_clear(KEY_KBDILLUMTOGGLE); break;
case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
case 0x083: map_key_clear(KEY_LAST); break;
case 0x084: map_key_clear(KEY_ENTER); break;
case 0x088: map_key_clear(KEY_PC); break;
case 0x089: map_key_clear(KEY_TV); break;
case 0x08a: map_key_clear(KEY_WWW); break;
case 0x08b: map_key_clear(KEY_DVD); break;
case 0x08c: map_key_clear(KEY_PHONE); break;
case 0x08d: map_key_clear(KEY_PROGRAM); break;
case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
case 0x08f: map_key_clear(KEY_GAMES); break;
case 0x090: map_key_clear(KEY_MEMO); break;
case 0x091: map_key_clear(KEY_CD); break;
case 0x092: map_key_clear(KEY_VCR); break;
case 0x093: map_key_clear(KEY_TUNER); break;
case 0x094: map_key_clear(KEY_EXIT); break;
case 0x095: map_key_clear(KEY_HELP); break;
case 0x096: map_key_clear(KEY_TAPE); break;
case 0x097: map_key_clear(KEY_TV2); break;
case 0x098: map_key_clear(KEY_SAT); break;
case 0x09a: map_key_clear(KEY_PVR); break;
case 0x09c: map_key_clear(KEY_CHANNELUP); break;
case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
case 0x0a0: map_key_clear(KEY_VCR2); break;
case 0x0b0: map_key_clear(KEY_PLAY); break;
case 0x0b1: map_key_clear(KEY_PAUSE); break;
case 0x0b2: map_key_clear(KEY_RECORD); break;
case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
case 0x0b4: map_key_clear(KEY_REWIND); break;
case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
case 0x0b7: map_key_clear(KEY_STOPCD); break;
case 0x0b8: map_key_clear(KEY_EJECTCD); break;
case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
case 0x0bf: map_key_clear(KEY_SLOW); break;
case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
case 0x0d8: map_key_clear(KEY_DICTATE); break;
case 0x0d9: map_key_clear(KEY_EMOJI_PICKER); break;
case 0x0e0: map_abs_clear(ABS_VOLUME); break;
case 0x0e2: map_key_clear(KEY_MUTE); break;
case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
case 0x0f5: map_key_clear(KEY_SLOW); break;
case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
case 0x182: map_key_clear(KEY_BOOKMARKS); break;
case 0x183: map_key_clear(KEY_CONFIG); break;
case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
case 0x185: map_key_clear(KEY_EDITOR); break;
case 0x186: map_key_clear(KEY_SPREADSHEET); break;
case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
case 0x188: map_key_clear(KEY_PRESENTATION); break;
case 0x189: map_key_clear(KEY_DATABASE); break;
case 0x18a: map_key_clear(KEY_MAIL); break;
case 0x18b: map_key_clear(KEY_NEWS); break;
case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
case 0x18e: map_key_clear(KEY_CALENDAR); break;
case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
case 0x190: map_key_clear(KEY_JOURNAL); break;
case 0x191: map_key_clear(KEY_FINANCE); break;
case 0x192: map_key_clear(KEY_CALC); break;
case 0x193: map_key_clear(KEY_PLAYER); break;
case 0x194: map_key_clear(KEY_FILE); break;
case 0x196: map_key_clear(KEY_WWW); break;
case 0x199: map_key_clear(KEY_CHAT); break;
case 0x19c: map_key_clear(KEY_LOGOFF); break;
case 0x19e: map_key_clear(KEY_COFFEE); break;
case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
case 0x1a2: map_key_clear(KEY_APPSELECT); break;
case 0x1a3: map_key_clear(KEY_NEXT); break;
case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
case 0x1a6: map_key_clear(KEY_HELP); break;
case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
case 0x1b4: map_key_clear(KEY_FILE); break;
case 0x1b6: map_key_clear(KEY_IMAGES); break;
case 0x1b7: map_key_clear(KEY_AUDIO); break;
case 0x1b8: map_key_clear(KEY_VIDEO); break;
case 0x1bc: map_key_clear(KEY_MESSENGER); break;
case 0x1bd: map_key_clear(KEY_INFO); break;
case 0x1cb: map_key_clear(KEY_ASSISTANT); break;
case 0x201: map_key_clear(KEY_NEW); break;
case 0x202: map_key_clear(KEY_OPEN); break;
case 0x203: map_key_clear(KEY_CLOSE); break;
case 0x204: map_key_clear(KEY_EXIT); break;
case 0x207: map_key_clear(KEY_SAVE); break;
case 0x208: map_key_clear(KEY_PRINT); break;
case 0x209: map_key_clear(KEY_PROPS); break;
case 0x21a: map_key_clear(KEY_UNDO); break;
case 0x21b: map_key_clear(KEY_COPY); break;
case 0x21c: map_key_clear(KEY_CUT); break;
case 0x21d: map_key_clear(KEY_PASTE); break;
case 0x21f: map_key_clear(KEY_FIND); break;
case 0x221: map_key_clear(KEY_SEARCH); break;
case 0x222: map_key_clear(KEY_GOTO); break;
case 0x223: map_key_clear(KEY_HOMEPAGE); break;
case 0x224: map_key_clear(KEY_BACK); break;
case 0x225: map_key_clear(KEY_FORWARD); break;
case 0x226: map_key_clear(KEY_STOP); break;
case 0x227: map_key_clear(KEY_REFRESH); break;
case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
case 0x22d: map_key_clear(KEY_ZOOMIN); break;
case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
case 0x232: map_key_clear(KEY_FULL_SCREEN); break;
case 0x233: map_key_clear(KEY_SCROLLUP); break;
case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
case 0x238: /* AC Pan */
set_bit(REL_HWHEEL, input->relbit);
map_rel(REL_HWHEEL_HI_RES);
break;
case 0x23d: map_key_clear(KEY_EDIT); break;
case 0x25f: map_key_clear(KEY_CANCEL); break;
case 0x269: map_key_clear(KEY_INSERT); break;
case 0x26a: map_key_clear(KEY_DELETE); break;
case 0x279: map_key_clear(KEY_REDO); break;
case 0x289: map_key_clear(KEY_REPLY); break;
case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
case 0x28c: map_key_clear(KEY_SEND); break;
case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT); break;
case 0x2a2: map_key_clear(KEY_ALL_APPLICATIONS); break;
case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
case 0x29f: map_key_clear(KEY_SCALE); break;
default: map_key_clear(KEY_UNKNOWN);
}
break;
case HID_UP_GENDEVCTRLS:
switch (usage->hid) {
case HID_DC_BATTERYSTRENGTH:
hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
usage->type = EV_PWR;
return;
}
goto unknown;
case HID_UP_BATTERY:
switch (usage->hid) {
case HID_BAT_ABSOLUTESTATEOFCHARGE:
hidinput_setup_battery(device, HID_INPUT_REPORT, field, true);
usage->type = EV_PWR;
return;
case HID_BAT_CHARGING:
usage->type = EV_PWR;
return;
}
goto unknown;
case HID_UP_CAMERA:
switch (usage->hid & HID_USAGE) {
case 0x020:
map_key_clear(KEY_CAMERA_FOCUS); break;
case 0x021:
map_key_clear(KEY_CAMERA); break;
default:
goto ignore;
}
break;
case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
set_bit(EV_REP, input->evbit);
switch (usage->hid & HID_USAGE) {
case 0x021: map_key_clear(KEY_PRINT); break;
case 0x070: map_key_clear(KEY_HP); break;
case 0x071: map_key_clear(KEY_CAMERA); break;
case 0x072: map_key_clear(KEY_SOUND); break;
case 0x073: map_key_clear(KEY_QUESTION); break;
case 0x080: map_key_clear(KEY_EMAIL); break;
case 0x081: map_key_clear(KEY_CHAT); break;
case 0x082: map_key_clear(KEY_SEARCH); break;
case 0x083: map_key_clear(KEY_CONNECT); break;
case 0x084: map_key_clear(KEY_FINANCE); break;
case 0x085: map_key_clear(KEY_SPORT); break;
case 0x086: map_key_clear(KEY_SHOP); break;
default: goto ignore;
}
break;
case HID_UP_HPVENDOR2:
set_bit(EV_REP, input->evbit);
switch (usage->hid & HID_USAGE) {
case 0x001: map_key_clear(KEY_MICMUTE); break;
case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
default: goto ignore;
}
break;
case HID_UP_MSVENDOR:
goto ignore;
case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
set_bit(EV_REP, input->evbit);
goto ignore;
case HID_UP_LOGIVENDOR:
/* intentional fallback */
case HID_UP_LOGIVENDOR2:
/* intentional fallback */
case HID_UP_LOGIVENDOR3:
goto ignore;
case HID_UP_PID:
switch (usage->hid & HID_USAGE) {
case 0xa4: map_key_clear(BTN_DEAD); break;
default: goto ignore;
}
break;
default:
unknown:
if (field->report_size == 1) {
if (field->report->type == HID_OUTPUT_REPORT) {
map_led(LED_MISC);
break;
}
map_key(BTN_MISC);
break;
}
if (field->flags & HID_MAIN_ITEM_RELATIVE) {
map_rel(REL_MISC);
break;
}
map_abs(ABS_MISC);
break;
}
mapped:
/* Mapping failed, bail out */
if (!bit)
return;
if (device->driver->input_mapped &&
device->driver->input_mapped(device, hidinput, field, usage,
&bit, &max) < 0) {
/*
* The driver indicated that no further generic handling
* of the usage is desired.
*/
return;
}
set_bit(usage->type, input->evbit);
/*
* This part is *really* controversial:
* - HID aims at being generic so we should do our best to export
* all incoming events
* - HID describes what events are, so there is no reason for ABS_X
* to be mapped to ABS_Y
* - HID is using *_MISC+N as a default value, but nothing prevents
* *_MISC+N to overwrite a legitimate even, which confuses userspace
* (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different
* processing)
*
* If devices still want to use this (at their own risk), they will
* have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but
* the default should be a reliable mapping.
*/
while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) {
usage->code = find_next_zero_bit(bit,
max + 1,
usage->code);
} else {
device->status |= HID_STAT_DUP_DETECTED;
goto ignore;
}
}
if (usage->code > max)
goto ignore;
if (usage->type == EV_ABS) {
int a = field->logical_minimum;
int b = field->logical_maximum;
if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
a = field->logical_minimum = 0;
b = field->logical_maximum = 255;
}
if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
else input_set_abs_params(input, usage->code, a, b, 0, 0);
input_abs_set_res(input, usage->code,
hidinput_calc_abs_res(field, usage->code));
/* use a larger default input buffer for MT devices */
if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
input_set_events_per_packet(input, 60);
}
if (usage->type == EV_ABS &&
(usage->hat_min < usage->hat_max || usage->hat_dir)) {
int i;
for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
input_set_abs_params(input, i, -1, 1, 0, 0);
set_bit(i, input->absbit);
}
if (usage->hat_dir && !field->dpad)
field->dpad = usage->code;
}
/* for those devices which produce Consumer volume usage as relative,
* we emulate pressing volumeup/volumedown appropriate number of times
* in hidinput_hid_event()
*/
if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
(usage->code == ABS_VOLUME)) {
set_bit(KEY_VOLUMEUP, input->keybit);
set_bit(KEY_VOLUMEDOWN, input->keybit);
}
if (usage->type == EV_KEY) {
set_bit(EV_MSC, input->evbit);
set_bit(MSC_SCAN, input->mscbit);
}
return;
ignore:
usage->type = 0;
usage->code = 0;
}
static void hidinput_handle_scroll(struct hid_usage *usage,
struct input_dev *input,
__s32 value)
{
int code;
int hi_res, lo_res;
if (value == 0)
return;
if (usage->code == REL_WHEEL_HI_RES)
code = REL_WHEEL;
else
code = REL_HWHEEL;
/*
* Windows reports one wheel click as value 120. Where a high-res
* scroll wheel is present, a fraction of 120 is reported instead.
* Our REL_WHEEL_HI_RES axis does the same because all HW must
* adhere to the 120 expectation.
*/
hi_res = value * 120/usage->resolution_multiplier;
usage->wheel_accumulated += hi_res;
lo_res = usage->wheel_accumulated/120;
if (lo_res)
usage->wheel_accumulated -= lo_res * 120;
input_event(input, EV_REL, code, lo_res);
input_event(input, EV_REL, usage->code, hi_res);
}
static void hid_report_release_tool(struct hid_report *report, struct input_dev *input,
unsigned int tool)
{
/* if the given tool is not currently reported, ignore */
if (!test_bit(tool, input->key))
return;
/*
* if the given tool was previously set, release it,
* release any TOUCH and send an EV_SYN
*/
input_event(input, EV_KEY, BTN_TOUCH, 0);
input_event(input, EV_KEY, tool, 0);
input_event(input, EV_SYN, SYN_REPORT, 0);
report->tool = 0;
}
static void hid_report_set_tool(struct hid_report *report, struct input_dev *input,
unsigned int new_tool)
{
if (report->tool != new_tool)
hid_report_release_tool(report, input, report->tool);
input_event(input, EV_KEY, new_tool, 1);
report->tool = new_tool;
}
void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
{
struct input_dev *input;
struct hid_report *report = field->report;
unsigned *quirks = &hid->quirks;
if (!usage->type)
return;
if (usage->type == EV_PWR) {
bool handled = hidinput_set_battery_charge_status(hid, usage->hid, value);
if (!handled)
hidinput_update_battery(hid, value);
return;
}
if (!field->hidinput)
return;
input = field->hidinput->input;
if (usage->hat_min < usage->hat_max || usage->hat_dir) {
int hat_dir = usage->hat_dir;
if (!hat_dir)
hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
return;
}
/*
* Ignore out-of-range values as per HID specification,
* section 5.10 and 6.2.25, when NULL state bit is present.
* When it's not, clamp the value to match Microsoft's input
* driver as mentioned in "Required HID usages for digitizers":
* https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp
*
* The logical_minimum < logical_maximum check is done so that we
* don't unintentionally discard values sent by devices which
* don't specify logical min and max.
*/
if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
field->logical_minimum < field->logical_maximum) {
if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
(value < field->logical_minimum ||
value > field->logical_maximum)) {
dbg_hid("Ignoring out-of-range value %x\n", value);
return;
}
value = clamp(value,
field->logical_minimum,
field->logical_maximum);
}
switch (usage->hid) {
case HID_DG_ERASER:
report->tool_active |= !!value;
/*
* if eraser is set, we must enforce BTN_TOOL_RUBBER
* to accommodate for devices not following the spec.
*/
if (value)
hid_report_set_tool(report, input, BTN_TOOL_RUBBER);
else if (report->tool != BTN_TOOL_RUBBER)
/* value is off, tool is not rubber, ignore */
return;
else if (*quirks & HID_QUIRK_NOINVERT &&
!test_bit(BTN_TOUCH, input->key)) {
/*
* There is no invert to release the tool, let hid_input
* send BTN_TOUCH with scancode and release the tool after.
*/
hid_report_release_tool(report, input, BTN_TOOL_RUBBER);
return;
}
/* let hid-input set BTN_TOUCH */
break;
case HID_DG_INVERT:
report->tool_active |= !!value;
/*
* If invert is set, we store BTN_TOOL_RUBBER.
*/
if (value)
hid_report_set_tool(report, input, BTN_TOOL_RUBBER);
else if (!report->tool_active)
/* tool_active not set means Invert and Eraser are not set */
hid_report_release_tool(report, input, BTN_TOOL_RUBBER);
/* no further processing */
return;
case HID_DG_INRANGE:
report->tool_active |= !!value;
if (report->tool_active) {
/*
* if tool is not set but is marked as active,
* assume ours
*/
if (!report->tool)
report->tool = usage->code;
/* drivers may have changed the value behind our back, resend it */
hid_report_set_tool(report, input, report->tool);
} else {
hid_report_release_tool(report, input, usage->code);
}
/* reset tool_active for the next event */
report->tool_active = false;
/* no further processing */
return;
case HID_DG_TIPSWITCH:
report->tool_active |= !!value;
/* if tool is set to RUBBER we should ignore the current value */
if (report->tool == BTN_TOOL_RUBBER)
return;
break;
case HID_DG_TIPPRESSURE:
if (*quirks & HID_QUIRK_NOTOUCH) {
int a = field->logical_minimum;
int b = field->logical_maximum;
if (value > a + ((b - a) >> 3)) {
input_event(input, EV_KEY, BTN_TOUCH, 1);
report->tool_active = true;
}
}
break;
case HID_UP_PID | 0x83UL: /* Simultaneous Effects Max */
dbg_hid("Maximum Effects - %d\n",value);
return;
case HID_UP_PID | 0x7fUL:
dbg_hid("PID Pool Report\n");
return;
}
switch (usage->type) {
case EV_KEY:
if (usage->code == 0) /* Key 0 is "unassigned", not KEY_UNKNOWN */
return;
break;
case EV_REL:
if (usage->code == REL_WHEEL_HI_RES ||
usage->code == REL_HWHEEL_HI_RES) {
hidinput_handle_scroll(usage, input, value);
return;
}
break;
case EV_ABS:
if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
usage->code == ABS_VOLUME) {
int count = abs(value);
int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
int i;
for (i = 0; i < count; i++) {
input_event(input, EV_KEY, direction, 1);
input_sync(input);
input_event(input, EV_KEY, direction, 0);
input_sync(input);
}
return;
} else if (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) ||
((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))
value = field->logical_maximum - value;
break;
}
/*
* Ignore reports for absolute data if the data didn't change. This is
* not only an optimization but also fixes 'dead' key reports. Some
* RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
* 0x31 and 0x32) report multiple keys, even though a localized keyboard
* can only have one of them physically available. The 'dead' keys
* report constant 0. As all map to the same keycode, they'd confuse
* the input layer. If we filter the 'dead' keys on the HID level, we
* skip the keycode translation and only forward real events.
*/
if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
HID_MAIN_ITEM_BUFFERED_BYTE)) &&
(field->flags & HID_MAIN_ITEM_VARIABLE) &&
usage->usage_index < field->maxusage &&
value == field->value[usage->usage_index])
return;
/* report the usage code as scancode if the key status has changed */
if (usage->type == EV_KEY &&
(!test_bit(usage->code, input->key)) == value)
input_event(input, EV_MSC, MSC_SCAN, usage->hid);
input_event(input, usage->type, usage->code, value);
if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
usage->type == EV_KEY && value) {
input_sync(input);
input_event(input, usage->type, usage->code, 0);
}
}
void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
{
struct hid_input *hidinput;
if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
return;
list_for_each_entry(hidinput, &hid->inputs, list)
input_sync(hidinput->input);
}
EXPORT_SYMBOL_GPL(hidinput_report_event);
static int hidinput_find_field(struct hid_device *hid, unsigned int type,
unsigned int code, struct hid_field **field)
{
struct hid_report *report;
int i, j;
list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
for (i = 0; i < report->maxfield; i++) {
*field = report->field[i];
for (j = 0; j < (*field)->maxusage; j++)
if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
return j;
}
}
return -1;
}
struct hid_field *hidinput_get_led_field(struct hid_device *hid)
{
struct hid_report *report;
struct hid_field *field;
int i, j;
list_for_each_entry(report,
&hid->report_enum[HID_OUTPUT_REPORT].report_list,
list) {
for (i = 0; i < report->maxfield; i++) {
field = report->field[i];
for (j = 0; j < field->maxusage; j++)
if (field->usage[j].type == EV_LED)
return field;
}
}
return NULL;
}
EXPORT_SYMBOL_GPL(hidinput_get_led_field);
unsigned int hidinput_count_leds(struct hid_device *hid)
{
struct hid_report *report;
struct hid_field *field;
int i, j;
unsigned int count = 0;
list_for_each_entry(report,
&hid->report_enum[HID_OUTPUT_REPORT].report_list,
list) {
for (i = 0; i < report->maxfield; i++) {
field = report->field[i];
for (j = 0; j < field->maxusage; j++)
if (field->usage[j].type == EV_LED &&
field->value[j])
count += 1;
}
}
return count;
}
EXPORT_SYMBOL_GPL(hidinput_count_leds);
static void hidinput_led_worker(struct work_struct *work)
{
struct hid_device *hid = container_of(work, struct hid_device,
led_work);
struct hid_field *field;
struct hid_report *report;
int ret;
u32 len;
__u8 *buf;
field = hidinput_get_led_field(hid);
if (!field)
return;
/*
* field->report is accessed unlocked regarding HID core. So there might
* be another incoming SET-LED request from user-space, which changes
* the LED state while we assemble our outgoing buffer. However, this
* doesn't matter as hid_output_report() correctly converts it into a
* boolean value no matter what information is currently set on the LED
* field (even garbage). So the remote device will always get a valid
* request.
* And in case we send a wrong value, a next led worker is spawned
* for every SET-LED request so the following worker will send the
* correct value, guaranteed!
*/
report = field->report;
/* use custom SET_REPORT request if possible (asynchronous) */
if (hid->ll_driver->request)
return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
/* fall back to generic raw-output-report */
len = hid_report_len(report);
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf)
return;
hid_output_report(report, buf);
/* synchronous output report */
ret = hid_hw_output_report(hid, buf, len);
if (ret == -ENOSYS)
hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
HID_REQ_SET_REPORT);
kfree(buf);
}
static int hidinput_input_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
struct hid_device *hid = input_get_drvdata(dev);
struct hid_field *field;
int offset;
if (type == EV_FF)
return input_ff_event(dev, type, code, value);
if (type != EV_LED)
return -1;
if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
hid_warn(dev, "event field not found\n");
return -1;
}
hid_set_field(field, offset, value);
schedule_work(&hid->led_work);
return 0;
}
static int hidinput_open(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
return hid_hw_open(hid);
}
static void hidinput_close(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
hid_hw_close(hid);
}
static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
struct hid_report *report, bool use_logical_max)
{
struct hid_usage *usage;
bool update_needed = false;
bool get_report_completed = false;
int i, j;
if (report->maxfield == 0)
return false;
for (i = 0; i < report->maxfield; i++) {
__s32 value = use_logical_max ?
report->field[i]->logical_maximum :
report->field[i]->logical_minimum;
/* There is no good reason for a Resolution
* Multiplier to have a count other than 1.
* Ignore that case.
*/
if (report->field[i]->report_count != 1)
continue;
for (j = 0; j < report->field[i]->maxusage; j++) {
usage = &report->field[i]->usage[j];
if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
continue;
/*
* If we have more than one feature within this
* report we need to fill in the bits from the
* others before we can overwrite the ones for the
* Resolution Multiplier.
*
* But if we're not allowed to read from the device,
* we just bail. Such a device should not exist
* anyway.
*/
if (!get_report_completed && report->maxfield > 1) {
if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
return update_needed;
hid_hw_request(hid, report, HID_REQ_GET_REPORT);
hid_hw_wait(hid);
get_report_completed = true;
}
report->field[i]->value[j] = value;
update_needed = true;
}
}
return update_needed;
}
static void hidinput_change_resolution_multipliers(struct hid_device *hid)
{
struct hid_report_enum *rep_enum;
struct hid_report *rep;
int ret;
rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list) {
bool update_needed = __hidinput_change_resolution_multipliers(hid,
rep, true);
if (update_needed) {
ret = __hid_request(hid, rep, HID_REQ_SET_REPORT);
if (ret) {
__hidinput_change_resolution_multipliers(hid,
rep, false);
return;
}
}
}
/* refresh our structs */
hid_setup_resolution_multiplier(hid);
}
static void report_features(struct hid_device *hid)
{
struct hid_driver *drv = hid->driver;
struct hid_report_enum *rep_enum;
struct hid_report *rep;
struct hid_usage *usage;
int i, j;
rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list)
for (i = 0; i < rep->maxfield; i++) {
/* Ignore if report count is out of bounds. */
if (rep->field[i]->report_count < 1)
continue;
for (j = 0; j < rep->field[i]->maxusage; j++) {
usage = &rep->field[i]->usage[j];
/* Verify if Battery Strength feature is available */
if (usage->hid == HID_DC_BATTERYSTRENGTH)
hidinput_setup_battery(hid, HID_FEATURE_REPORT,
rep->field[i], false);
if (drv->feature_mapping)
drv->feature_mapping(hid, rep->field[i], usage);
}
}
}
static struct hid_input *hidinput_allocate(struct hid_device *hid,
unsigned int application)
{
struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
struct input_dev *input_dev = input_allocate_device();
const char *suffix = NULL;
size_t suffix_len, name_len;
if (!hidinput || !input_dev)
goto fail;
if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) &&
hid->maxapplication > 1) {
switch (application) {
case HID_GD_KEYBOARD:
suffix = "Keyboard";
break;
case HID_GD_KEYPAD:
suffix = "Keypad";
break;
case HID_GD_MOUSE:
suffix = "Mouse";
break;
case HID_DG_PEN:
/*
* yes, there is an issue here:
* DG_PEN -> "Stylus"
* DG_STYLUS -> "Pen"
* But changing this now means users with config snippets
* will have to change it and the test suite will not be happy.
*/
suffix = "Stylus";
break;
case HID_DG_STYLUS:
suffix = "Pen";
break;
case HID_DG_TOUCHSCREEN:
suffix = "Touchscreen";
break;
case HID_DG_TOUCHPAD:
suffix = "Touchpad";
break;
case HID_GD_SYSTEM_CONTROL:
suffix = "System Control";
break;
case HID_CP_CONSUMER_CONTROL:
suffix = "Consumer Control";
break;
case HID_GD_WIRELESS_RADIO_CTLS:
suffix = "Wireless Radio Control";
break;
case HID_GD_SYSTEM_MULTIAXIS:
suffix = "System Multi Axis";
break;
default:
break;
}
}
if (suffix) {
name_len = strlen(hid->name);
suffix_len = strlen(suffix);
if ((name_len < suffix_len) ||
strcmp(hid->name + name_len - suffix_len, suffix)) {
hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
hid->name, suffix);
if (!hidinput->name)
goto fail;
}
}
input_set_drvdata(input_dev, hid);
input_dev->event = hidinput_input_event;
input_dev->open = hidinput_open;
input_dev->close = hidinput_close;
input_dev->setkeycode = hidinput_setkeycode;
input_dev->getkeycode = hidinput_getkeycode;
input_dev->name = hidinput->name ? hidinput->name : hid->name;
input_dev->phys = hid->phys;
input_dev->uniq = hid->uniq;
input_dev->id.bustype = hid->bus;
input_dev->id.vendor = hid->vendor;
input_dev->id.product = hid->product;
input_dev->id.version = hid->version;
input_dev->dev.parent = &hid->dev;
hidinput->input = input_dev;
hidinput->application = application;
list_add_tail(&hidinput->list, &hid->inputs);
INIT_LIST_HEAD(&hidinput->reports);
return hidinput;
fail:
kfree(hidinput);
input_free_device(input_dev);
hid_err(hid, "Out of memory during hid input probe\n");
return NULL;
}
static bool hidinput_has_been_populated(struct hid_input *hidinput)
{
int i;
unsigned long r = 0;
for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
r |= hidinput->input->evbit[i];
for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
r |= hidinput->input->keybit[i];
for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
r |= hidinput->input->relbit[i];
for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
r |= hidinput->input->absbit[i];
for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
r |= hidinput->input->mscbit[i];
for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
r |= hidinput->input->ledbit[i];
for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
r |= hidinput->input->sndbit[i];
for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
r |= hidinput->input->ffbit[i];
for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
r |= hidinput->input->swbit[i];
return !!r;
}
static void hidinput_cleanup_hidinput(struct hid_device *hid,
struct hid_input *hidinput)
{
struct hid_report *report;
int i, k;
list_del(&hidinput->list);
input_free_device(hidinput->input);
kfree(hidinput->name);
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
if (k == HID_OUTPUT_REPORT &&
hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
continue;
list_for_each_entry(report, &hid->report_enum[k].report_list,
list) {
for (i = 0; i < report->maxfield; i++)
if (report->field[i]->hidinput == hidinput)
report->field[i]->hidinput = NULL;
}
}
kfree(hidinput);
}
static struct hid_input *hidinput_match(struct hid_report *report)
{
struct hid_device *hid = report->device;
struct hid_input *hidinput;
list_for_each_entry(hidinput, &hid->inputs, list) {
if (hidinput->report &&
hidinput->report->id == report->id)
return hidinput;
}
return NULL;
}
static struct hid_input *hidinput_match_application(struct hid_report *report)
{
struct hid_device *hid = report->device;
struct hid_input *hidinput;
list_for_each_entry(hidinput, &hid->inputs, list) {
if (hidinput->application == report->application)
return hidinput;
/*
* Keep SystemControl and ConsumerControl applications together
* with the main keyboard, if present.
*/
if ((report->application == HID_GD_SYSTEM_CONTROL ||
report->application == HID_CP_CONSUMER_CONTROL) &&
hidinput->application == HID_GD_KEYBOARD) {
return hidinput;
}
}
return NULL;
}
static inline void hidinput_configure_usages(struct hid_input *hidinput,
struct hid_report *report)
{
int i, j, k;
int first_field_index = 0;
int slot_collection_index = -1;
int prev_collection_index = -1;
unsigned int slot_idx = 0;
struct hid_field *field;
/*
* First tag all the fields that are part of a slot,
* a slot needs to have one Contact ID in the collection
*/
for (i = 0; i < report->maxfield; i++) {
field = report->field[i];
/* ignore fields without usage */
if (field->maxusage < 1)
continue;
/*
* janitoring when collection_index changes
*/
if (prev_collection_index != field->usage->collection_index) {
prev_collection_index = field->usage->collection_index;
first_field_index = i;
}
/*
* if we already found a Contact ID in the collection,
* tag and continue to the next.
*/
if (slot_collection_index == field->usage->collection_index) {
field->slot_idx = slot_idx;
continue;
}
/* check if the current field has Contact ID */
for (j = 0; j < field->maxusage; j++) {
if (field->usage[j].hid == HID_DG_CONTACTID) {
slot_collection_index = field->usage->collection_index;
slot_idx++;
/*
* mark all previous fields and this one in the
* current collection to be slotted.
*/
for (k = first_field_index; k <= i; k++)
report->field[k]->slot_idx = slot_idx;
break;
}
}
}
for (i = 0; i < report->maxfield; i++)
for (j = 0; j < report->field[i]->maxusage; j++)
hidinput_configure_usage(hidinput, report->field[i],
report->field[i]->usage + j,
j);
}
/*
* Register the input device; print a message.
* Configure the input layer interface
* Read all reports and initialize the absolute field values.
*/
int hidinput_connect(struct hid_device *hid, unsigned int force)
{
struct hid_driver *drv = hid->driver;
struct hid_report *report;
struct hid_input *next, *hidinput = NULL;
unsigned int application;
int i, k;
INIT_LIST_HEAD(&hid->inputs);
INIT_WORK(&hid->led_work, hidinput_led_worker);
hid->status &= ~HID_STAT_DUP_DETECTED;
if (!force) {
for (i = 0; i < hid->maxcollection; i++) {
struct hid_collection *col = &hid->collection[i];
if (col->type == HID_COLLECTION_APPLICATION ||
col->type == HID_COLLECTION_PHYSICAL)
if (IS_INPUT_APPLICATION(col->usage))
break;
}
if (i == hid->maxcollection)
return -1;
}
report_features(hid);
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
if (k == HID_OUTPUT_REPORT &&
hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
continue;
list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
if (!report->maxfield)
continue;
application = report->application;
/*
* Find the previous hidinput report attached
* to this report id.
*/
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput = hidinput_match(report);
else if (hid->maxapplication > 1 &&
(hid->quirks & HID_QUIRK_INPUT_PER_APP))
hidinput = hidinput_match_application(report);
if (!hidinput) {
hidinput = hidinput_allocate(hid, application);
if (!hidinput)
goto out_unwind;
}
hidinput_configure_usages(hidinput, report);
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
hidinput->report = report;
list_add_tail(&report->hidinput_list,
&hidinput->reports);
}
}
hidinput_change_resolution_multipliers(hid);
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
if (drv->input_configured &&
drv->input_configured(hid, hidinput))
goto out_unwind;
if (!hidinput_has_been_populated(hidinput)) {
/* no need to register an input device not populated */
hidinput_cleanup_hidinput(hid, hidinput);
continue;
}
if (input_register_device(hidinput->input))
goto out_unwind;
hidinput->registered = true;
}
if (list_empty(&hid->inputs)) {
hid_err(hid, "No inputs registered, leaving\n");
goto out_unwind;
}
if (hid->status & HID_STAT_DUP_DETECTED)
hid_dbg(hid,
"Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n");
return 0;
out_unwind:
/* unwind the ones we already registered */
hidinput_disconnect(hid);
return -1;
}
EXPORT_SYMBOL_GPL(hidinput_connect);
void hidinput_disconnect(struct hid_device *hid)
{
struct hid_input *hidinput, *next;
hidinput_cleanup_battery(hid);
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
list_del(&hidinput->list);
if (hidinput->registered)
input_unregister_device(hidinput->input);
else
input_free_device(hidinput->input);
kfree(hidinput->name);
kfree(hidinput);
}
/* led_work is spawned by input_dev callbacks, but doesn't access the
* parent input_dev at all. Once all input devices are removed, we
* know that led_work will never get restarted, so we can cancel it
* synchronously and are safe. */
cancel_work_sync(&hid->led_work);
}
EXPORT_SYMBOL_GPL(hidinput_disconnect);
#ifdef CONFIG_HID_KUNIT_TEST
#include "hid-input-test.c"
#endif
| linux-master | drivers/hid/hid-input.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID to Linux Input mapping
*
* Copyright (c) 2022 José Expósito <[email protected]>
*/
#include <kunit/test.h>
static void hid_test_input_set_battery_charge_status(struct kunit *test)
{
struct hid_device *dev;
bool handled;
dev = kunit_kzalloc(test, sizeof(*dev), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
handled = hidinput_set_battery_charge_status(dev, HID_DG_HEIGHT, 0);
KUNIT_EXPECT_FALSE(test, handled);
KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_UNKNOWN);
handled = hidinput_set_battery_charge_status(dev, HID_BAT_CHARGING, 0);
KUNIT_EXPECT_TRUE(test, handled);
KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_DISCHARGING);
handled = hidinput_set_battery_charge_status(dev, HID_BAT_CHARGING, 1);
KUNIT_EXPECT_TRUE(test, handled);
KUNIT_EXPECT_EQ(test, dev->battery_charge_status, POWER_SUPPLY_STATUS_CHARGING);
}
static void hid_test_input_get_battery_property(struct kunit *test)
{
struct power_supply *psy;
struct hid_device *dev;
union power_supply_propval val;
int ret;
dev = kunit_kzalloc(test, sizeof(*dev), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
dev->battery_avoid_query = true;
psy = kunit_kzalloc(test, sizeof(*psy), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, psy);
psy->drv_data = dev;
dev->battery_status = HID_BATTERY_UNKNOWN;
dev->battery_charge_status = POWER_SUPPLY_STATUS_CHARGING;
ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
KUNIT_EXPECT_EQ(test, ret, 0);
KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_UNKNOWN);
dev->battery_status = HID_BATTERY_REPORTED;
dev->battery_charge_status = POWER_SUPPLY_STATUS_CHARGING;
ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
KUNIT_EXPECT_EQ(test, ret, 0);
KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_CHARGING);
dev->battery_status = HID_BATTERY_REPORTED;
dev->battery_charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
ret = hidinput_get_battery_property(psy, POWER_SUPPLY_PROP_STATUS, &val);
KUNIT_EXPECT_EQ(test, ret, 0);
KUNIT_EXPECT_EQ(test, val.intval, POWER_SUPPLY_STATUS_DISCHARGING);
}
static struct kunit_case hid_input_tests[] = {
KUNIT_CASE(hid_test_input_set_battery_charge_status),
KUNIT_CASE(hid_test_input_get_battery_property),
{ }
};
static struct kunit_suite hid_input_test_suite = {
.name = "hid_input",
.test_cases = hid_input_tests,
};
kunit_test_suite(hid_input_test_suite);
MODULE_DESCRIPTION("HID input KUnit tests");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("José Expósito <[email protected]>");
| linux-master | drivers/hid/hid-input-test.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* MSI GT683R led driver
*
* Copyright (c) 2014 Janne Kanniainen <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
#include "hid-ids.h"
#define GT683R_BUFFER_SIZE 8
/*
* GT683R_LED_OFF: all LEDs are off
* GT683R_LED_AUDIO: LEDs brightness depends on sound level
* GT683R_LED_BREATHING: LEDs brightness varies at human breathing rate
* GT683R_LED_NORMAL: LEDs are fully on when enabled
*/
enum gt683r_led_mode {
GT683R_LED_OFF = 0,
GT683R_LED_AUDIO = 2,
GT683R_LED_BREATHING = 3,
GT683R_LED_NORMAL = 5
};
enum gt683r_panels {
GT683R_LED_BACK = 0,
GT683R_LED_SIDE = 1,
GT683R_LED_FRONT = 2,
GT683R_LED_COUNT,
};
static const char * const gt683r_panel_names[] = {
"back",
"side",
"front",
};
struct gt683r_led {
struct hid_device *hdev;
struct led_classdev led_devs[GT683R_LED_COUNT];
struct mutex lock;
struct work_struct work;
enum led_brightness brightnesses[GT683R_LED_COUNT];
enum gt683r_led_mode mode;
};
static const struct hid_device_id gt683r_led_id[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
{ }
};
MODULE_DEVICE_TABLE(hid, gt683r_led_id);
static void gt683r_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
int i;
struct device *dev = led_cdev->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct gt683r_led *led = hid_get_drvdata(hdev);
for (i = 0; i < GT683R_LED_COUNT; i++) {
if (led_cdev == &led->led_devs[i])
break;
}
if (i < GT683R_LED_COUNT) {
led->brightnesses[i] = brightness;
schedule_work(&led->work);
}
}
static ssize_t mode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
u8 sysfs_mode;
struct hid_device *hdev = to_hid_device(dev->parent);
struct gt683r_led *led = hid_get_drvdata(hdev);
if (led->mode == GT683R_LED_NORMAL)
sysfs_mode = 0;
else if (led->mode == GT683R_LED_AUDIO)
sysfs_mode = 1;
else
sysfs_mode = 2;
return scnprintf(buf, PAGE_SIZE, "%u\n", sysfs_mode);
}
static ssize_t mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
u8 sysfs_mode;
struct hid_device *hdev = to_hid_device(dev->parent);
struct gt683r_led *led = hid_get_drvdata(hdev);
if (kstrtou8(buf, 10, &sysfs_mode) || sysfs_mode > 2)
return -EINVAL;
mutex_lock(&led->lock);
if (sysfs_mode == 0)
led->mode = GT683R_LED_NORMAL;
else if (sysfs_mode == 1)
led->mode = GT683R_LED_AUDIO;
else
led->mode = GT683R_LED_BREATHING;
mutex_unlock(&led->lock);
schedule_work(&led->work);
return count;
}
static int gt683r_led_snd_msg(struct gt683r_led *led, u8 *msg)
{
int ret;
ret = hid_hw_raw_request(led->hdev, msg[0], msg, GT683R_BUFFER_SIZE,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret != GT683R_BUFFER_SIZE) {
hid_err(led->hdev,
"failed to send set report request: %i\n", ret);
if (ret < 0)
return ret;
return -EIO;
}
return 0;
}
static int gt683r_leds_set(struct gt683r_led *led, u8 leds)
{
int ret;
u8 *buffer;
buffer = kzalloc(GT683R_BUFFER_SIZE, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
buffer[0] = 0x01;
buffer[1] = 0x02;
buffer[2] = 0x30;
buffer[3] = leds;
ret = gt683r_led_snd_msg(led, buffer);
kfree(buffer);
return ret;
}
static int gt683r_mode_set(struct gt683r_led *led, u8 mode)
{
int ret;
u8 *buffer;
buffer = kzalloc(GT683R_BUFFER_SIZE, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
buffer[0] = 0x01;
buffer[1] = 0x02;
buffer[2] = 0x20;
buffer[3] = mode;
buffer[4] = 0x01;
ret = gt683r_led_snd_msg(led, buffer);
kfree(buffer);
return ret;
}
static void gt683r_led_work(struct work_struct *work)
{
int i;
u8 leds = 0;
u8 mode;
struct gt683r_led *led = container_of(work, struct gt683r_led, work);
mutex_lock(&led->lock);
for (i = 0; i < GT683R_LED_COUNT; i++) {
if (led->brightnesses[i])
leds |= BIT(i);
}
if (gt683r_leds_set(led, leds))
goto fail;
if (leds)
mode = led->mode;
else
mode = GT683R_LED_OFF;
gt683r_mode_set(led, mode);
fail:
mutex_unlock(&led->lock);
}
static DEVICE_ATTR_RW(mode);
static struct attribute *gt683r_led_attrs[] = {
&dev_attr_mode.attr,
NULL
};
static const struct attribute_group gt683r_led_group = {
.name = "gt683r",
.attrs = gt683r_led_attrs,
};
static const struct attribute_group *gt683r_led_groups[] = {
>683r_led_group,
NULL
};
static int gt683r_led_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int i;
int ret;
int name_sz;
char *name;
struct gt683r_led *led;
led = devm_kzalloc(&hdev->dev, sizeof(*led), GFP_KERNEL);
if (!led)
return -ENOMEM;
mutex_init(&led->lock);
INIT_WORK(&led->work, gt683r_led_work);
led->mode = GT683R_LED_NORMAL;
led->hdev = hdev;
hid_set_drvdata(hdev, led);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid parsing failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
for (i = 0; i < GT683R_LED_COUNT; i++) {
name_sz = strlen(dev_name(&hdev->dev)) +
strlen(gt683r_panel_names[i]) + 3;
name = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
if (!name) {
ret = -ENOMEM;
goto fail;
}
snprintf(name, name_sz, "%s::%s",
dev_name(&hdev->dev), gt683r_panel_names[i]);
led->led_devs[i].name = name;
led->led_devs[i].max_brightness = 1;
led->led_devs[i].brightness_set = gt683r_brightness_set;
led->led_devs[i].groups = gt683r_led_groups;
ret = led_classdev_register(&hdev->dev, &led->led_devs[i]);
if (ret) {
hid_err(hdev, "could not register led device\n");
goto fail;
}
}
return 0;
fail:
for (i = i - 1; i >= 0; i--)
led_classdev_unregister(&led->led_devs[i]);
hid_hw_stop(hdev);
return ret;
}
static void gt683r_led_remove(struct hid_device *hdev)
{
int i;
struct gt683r_led *led = hid_get_drvdata(hdev);
for (i = 0; i < GT683R_LED_COUNT; i++)
led_classdev_unregister(&led->led_devs[i]);
flush_work(&led->work);
hid_hw_stop(hdev);
}
static struct hid_driver gt683r_led_driver = {
.probe = gt683r_led_probe,
.remove = gt683r_led_remove,
.name = "gt683r_led",
.id_table = gt683r_led_id,
};
module_hid_driver(gt683r_led_driver);
MODULE_AUTHOR("Janne Kanniainen");
MODULE_DESCRIPTION("MSI GT683R led driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-gt683r.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (c) 1999 Andreas Gal <[email protected]>
* (c) 2000-2001 Vojtech Pavlik <[email protected]>
* (c) 2007-2009 Jiri Kosina
*
* HID debugging support
*/
/*
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <[email protected]>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/kfifo.h>
#include <linux/sched/signal.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/poll.h>
#include <linux/hid.h>
#include <linux/hid-debug.h>
static struct dentry *hid_debug_root;
struct hid_usage_entry {
unsigned page;
unsigned usage;
const char *description;
};
static const struct hid_usage_entry hid_usage_table[] = {
{ 0, 0, "Undefined" },
{ 1, 0, "GenericDesktop" },
{0, 0x01, "Pointer"},
{0, 0x02, "Mouse"},
{0, 0x04, "Joystick"},
{0, 0x05, "GamePad"},
{0, 0x06, "Keyboard"},
{0, 0x07, "Keypad"},
{0, 0x08, "MultiAxis"},
{0, 0x30, "X"},
{0, 0x31, "Y"},
{0, 0x32, "Z"},
{0, 0x33, "Rx"},
{0, 0x34, "Ry"},
{0, 0x35, "Rz"},
{0, 0x36, "Slider"},
{0, 0x37, "Dial"},
{0, 0x38, "Wheel"},
{0, 0x39, "HatSwitch"},
{0, 0x3a, "CountedBuffer"},
{0, 0x3b, "ByteCount"},
{0, 0x3c, "MotionWakeup"},
{0, 0x3d, "Start"},
{0, 0x3e, "Select"},
{0, 0x40, "Vx"},
{0, 0x41, "Vy"},
{0, 0x42, "Vz"},
{0, 0x43, "Vbrx"},
{0, 0x44, "Vbry"},
{0, 0x45, "Vbrz"},
{0, 0x46, "Vno"},
{0, 0x80, "SystemControl"},
{0, 0x81, "SystemPowerDown"},
{0, 0x82, "SystemSleep"},
{0, 0x83, "SystemWakeUp"},
{0, 0x84, "SystemContextMenu"},
{0, 0x85, "SystemMainMenu"},
{0, 0x86, "SystemAppMenu"},
{0, 0x87, "SystemMenuHelp"},
{0, 0x88, "SystemMenuExit"},
{0, 0x89, "SystemMenuSelect"},
{0, 0x8a, "SystemMenuRight"},
{0, 0x8b, "SystemMenuLeft"},
{0, 0x8c, "SystemMenuUp"},
{0, 0x8d, "SystemMenuDown"},
{0, 0x90, "D-PadUp"},
{0, 0x91, "D-PadDown"},
{0, 0x92, "D-PadRight"},
{0, 0x93, "D-PadLeft"},
{ 2, 0, "Simulation" },
{0, 0xb0, "Aileron"},
{0, 0xb1, "AileronTrim"},
{0, 0xb2, "Anti-Torque"},
{0, 0xb3, "Autopilot"},
{0, 0xb4, "Chaff"},
{0, 0xb5, "Collective"},
{0, 0xb6, "DiveBrake"},
{0, 0xb7, "ElectronicCountermeasures"},
{0, 0xb8, "Elevator"},
{0, 0xb9, "ElevatorTrim"},
{0, 0xba, "Rudder"},
{0, 0xbb, "Throttle"},
{0, 0xbc, "FlightCommunications"},
{0, 0xbd, "FlareRelease"},
{0, 0xbe, "LandingGear"},
{0, 0xbf, "ToeBrake"},
{ 6, 0, "GenericDeviceControls" },
{0, 0x20, "BatteryStrength" },
{0, 0x21, "WirelessChannel" },
{0, 0x22, "WirelessID" },
{0, 0x23, "DiscoverWirelessControl" },
{0, 0x24, "SecurityCodeCharacterEntered" },
{0, 0x25, "SecurityCodeCharactedErased" },
{0, 0x26, "SecurityCodeCleared" },
{ 7, 0, "Keyboard" },
{ 8, 0, "LED" },
{0, 0x01, "NumLock"},
{0, 0x02, "CapsLock"},
{0, 0x03, "ScrollLock"},
{0, 0x04, "Compose"},
{0, 0x05, "Kana"},
{0, 0x4b, "GenericIndicator"},
{ 9, 0, "Button" },
{ 10, 0, "Ordinal" },
{ 12, 0, "Consumer" },
{0, 0x003, "ProgrammableButtons"},
{0, 0x238, "HorizontalWheel"},
{ 13, 0, "Digitizers" },
{0, 0x01, "Digitizer"},
{0, 0x02, "Pen"},
{0, 0x03, "LightPen"},
{0, 0x04, "TouchScreen"},
{0, 0x05, "TouchPad"},
{0, 0x0e, "DeviceConfiguration"},
{0, 0x20, "Stylus"},
{0, 0x21, "Puck"},
{0, 0x22, "Finger"},
{0, 0x23, "DeviceSettings"},
{0, 0x30, "TipPressure"},
{0, 0x31, "BarrelPressure"},
{0, 0x32, "InRange"},
{0, 0x33, "Touch"},
{0, 0x34, "UnTouch"},
{0, 0x35, "Tap"},
{0, 0x38, "Transducer Index"},
{0, 0x39, "TabletFunctionKey"},
{0, 0x3a, "ProgramChangeKey"},
{0, 0x3B, "Battery Strength"},
{0, 0x3c, "Invert"},
{0, 0x42, "TipSwitch"},
{0, 0x43, "SecondaryTipSwitch"},
{0, 0x44, "BarrelSwitch"},
{0, 0x45, "Eraser"},
{0, 0x46, "TabletPick"},
{0, 0x47, "Confidence"},
{0, 0x48, "Width"},
{0, 0x49, "Height"},
{0, 0x51, "ContactID"},
{0, 0x52, "InputMode"},
{0, 0x53, "DeviceIndex"},
{0, 0x54, "ContactCount"},
{0, 0x55, "ContactMaximumNumber"},
{0, 0x59, "ButtonType"},
{0, 0x5A, "SecondaryBarrelSwitch"},
{0, 0x5B, "TransducerSerialNumber"},
{0, 0x5C, "Preferred Color"},
{0, 0x5D, "Preferred Color is Locked"},
{0, 0x5E, "Preferred Line Width"},
{0, 0x5F, "Preferred Line Width is Locked"},
{0, 0x6e, "TransducerSerialNumber2"},
{0, 0x70, "Preferred Line Style"},
{0, 0x71, "Preferred Line Style is Locked"},
{0, 0x72, "Ink"},
{0, 0x73, "Pencil"},
{0, 0x74, "Highlighter"},
{0, 0x75, "Chisel Marker"},
{0, 0x76, "Brush"},
{0, 0x77, "No Preference"},
{0, 0x80, "Digitizer Diagnostic"},
{0, 0x81, "Digitizer Error"},
{0, 0x82, "Err Normal Status"},
{0, 0x83, "Err Transducers Exceeded"},
{0, 0x84, "Err Full Trans Features Unavailable"},
{0, 0x85, "Err Charge Low"},
{0, 0x90, "Transducer Software Info"},
{0, 0x91, "Transducer Vendor Id"},
{0, 0x92, "Transducer Product Id"},
{0, 0x93, "Device Supported Protocols"},
{0, 0x94, "Transducer Supported Protocols"},
{0, 0x95, "No Protocol"},
{0, 0x96, "Wacom AES Protocol"},
{0, 0x97, "USI Protocol"},
{0, 0x98, "Microsoft Pen Protocol"},
{0, 0xA0, "Supported Report Rates"},
{0, 0xA1, "Report Rate"},
{0, 0xA2, "Transducer Connected"},
{0, 0xA3, "Switch Disabled"},
{0, 0xA4, "Switch Unimplemented"},
{0, 0xA5, "Transducer Switches"},
{ 15, 0, "PhysicalInterfaceDevice" },
{0, 0x00, "Undefined"},
{0, 0x01, "Physical_Interface_Device"},
{0, 0x20, "Normal"},
{0, 0x21, "Set_Effect_Report"},
{0, 0x22, "Effect_Block_Index"},
{0, 0x23, "Parameter_Block_Offset"},
{0, 0x24, "ROM_Flag"},
{0, 0x25, "Effect_Type"},
{0, 0x26, "ET_Constant_Force"},
{0, 0x27, "ET_Ramp"},
{0, 0x28, "ET_Custom_Force_Data"},
{0, 0x30, "ET_Square"},
{0, 0x31, "ET_Sine"},
{0, 0x32, "ET_Triangle"},
{0, 0x33, "ET_Sawtooth_Up"},
{0, 0x34, "ET_Sawtooth_Down"},
{0, 0x40, "ET_Spring"},
{0, 0x41, "ET_Damper"},
{0, 0x42, "ET_Inertia"},
{0, 0x43, "ET_Friction"},
{0, 0x50, "Duration"},
{0, 0x51, "Sample_Period"},
{0, 0x52, "Gain"},
{0, 0x53, "Trigger_Button"},
{0, 0x54, "Trigger_Repeat_Interval"},
{0, 0x55, "Axes_Enable"},
{0, 0x56, "Direction_Enable"},
{0, 0x57, "Direction"},
{0, 0x58, "Type_Specific_Block_Offset"},
{0, 0x59, "Block_Type"},
{0, 0x5A, "Set_Envelope_Report"},
{0, 0x5B, "Attack_Level"},
{0, 0x5C, "Attack_Time"},
{0, 0x5D, "Fade_Level"},
{0, 0x5E, "Fade_Time"},
{0, 0x5F, "Set_Condition_Report"},
{0, 0x60, "CP_Offset"},
{0, 0x61, "Positive_Coefficient"},
{0, 0x62, "Negative_Coefficient"},
{0, 0x63, "Positive_Saturation"},
{0, 0x64, "Negative_Saturation"},
{0, 0x65, "Dead_Band"},
{0, 0x66, "Download_Force_Sample"},
{0, 0x67, "Isoch_Custom_Force_Enable"},
{0, 0x68, "Custom_Force_Data_Report"},
{0, 0x69, "Custom_Force_Data"},
{0, 0x6A, "Custom_Force_Vendor_Defined_Data"},
{0, 0x6B, "Set_Custom_Force_Report"},
{0, 0x6C, "Custom_Force_Data_Offset"},
{0, 0x6D, "Sample_Count"},
{0, 0x6E, "Set_Periodic_Report"},
{0, 0x6F, "Offset"},
{0, 0x70, "Magnitude"},
{0, 0x71, "Phase"},
{0, 0x72, "Period"},
{0, 0x73, "Set_Constant_Force_Report"},
{0, 0x74, "Set_Ramp_Force_Report"},
{0, 0x75, "Ramp_Start"},
{0, 0x76, "Ramp_End"},
{0, 0x77, "Effect_Operation_Report"},
{0, 0x78, "Effect_Operation"},
{0, 0x79, "Op_Effect_Start"},
{0, 0x7A, "Op_Effect_Start_Solo"},
{0, 0x7B, "Op_Effect_Stop"},
{0, 0x7C, "Loop_Count"},
{0, 0x7D, "Device_Gain_Report"},
{0, 0x7E, "Device_Gain"},
{0, 0x7F, "PID_Pool_Report"},
{0, 0x80, "RAM_Pool_Size"},
{0, 0x81, "ROM_Pool_Size"},
{0, 0x82, "ROM_Effect_Block_Count"},
{0, 0x83, "Simultaneous_Effects_Max"},
{0, 0x84, "Pool_Alignment"},
{0, 0x85, "PID_Pool_Move_Report"},
{0, 0x86, "Move_Source"},
{0, 0x87, "Move_Destination"},
{0, 0x88, "Move_Length"},
{0, 0x89, "PID_Block_Load_Report"},
{0, 0x8B, "Block_Load_Status"},
{0, 0x8C, "Block_Load_Success"},
{0, 0x8D, "Block_Load_Full"},
{0, 0x8E, "Block_Load_Error"},
{0, 0x8F, "Block_Handle"},
{0, 0x90, "PID_Block_Free_Report"},
{0, 0x91, "Type_Specific_Block_Handle"},
{0, 0x92, "PID_State_Report"},
{0, 0x94, "Effect_Playing"},
{0, 0x95, "PID_Device_Control_Report"},
{0, 0x96, "PID_Device_Control"},
{0, 0x97, "DC_Enable_Actuators"},
{0, 0x98, "DC_Disable_Actuators"},
{0, 0x99, "DC_Stop_All_Effects"},
{0, 0x9A, "DC_Device_Reset"},
{0, 0x9B, "DC_Device_Pause"},
{0, 0x9C, "DC_Device_Continue"},
{0, 0x9F, "Device_Paused"},
{0, 0xA0, "Actuators_Enabled"},
{0, 0xA4, "Safety_Switch"},
{0, 0xA5, "Actuator_Override_Switch"},
{0, 0xA6, "Actuator_Power"},
{0, 0xA7, "Start_Delay"},
{0, 0xA8, "Parameter_Block_Size"},
{0, 0xA9, "Device_Managed_Pool"},
{0, 0xAA, "Shared_Parameter_Blocks"},
{0, 0xAB, "Create_New_Effect_Report"},
{0, 0xAC, "RAM_Pool_Available"},
{ 0x20, 0, "Sensor" },
{ 0x20, 0x01, "Sensor" },
{ 0x20, 0x10, "Biometric" },
{ 0x20, 0x11, "BiometricHumanPresence" },
{ 0x20, 0x12, "BiometricHumanProximity" },
{ 0x20, 0x13, "BiometricHumanTouch" },
{ 0x20, 0x20, "Electrical" },
{ 0x20, 0x21, "ElectricalCapacitance" },
{ 0x20, 0x22, "ElectricalCurrent" },
{ 0x20, 0x23, "ElectricalPower" },
{ 0x20, 0x24, "ElectricalInductance" },
{ 0x20, 0x25, "ElectricalResistance" },
{ 0x20, 0x26, "ElectricalVoltage" },
{ 0x20, 0x27, "ElectricalPoteniometer" },
{ 0x20, 0x28, "ElectricalFrequency" },
{ 0x20, 0x29, "ElectricalPeriod" },
{ 0x20, 0x30, "Environmental" },
{ 0x20, 0x31, "EnvironmentalAtmosphericPressure" },
{ 0x20, 0x32, "EnvironmentalHumidity" },
{ 0x20, 0x33, "EnvironmentalTemperature" },
{ 0x20, 0x34, "EnvironmentalWindDirection" },
{ 0x20, 0x35, "EnvironmentalWindSpeed" },
{ 0x20, 0x40, "Light" },
{ 0x20, 0x41, "LightAmbientLight" },
{ 0x20, 0x42, "LightConsumerInfrared" },
{ 0x20, 0x50, "Location" },
{ 0x20, 0x51, "LocationBroadcast" },
{ 0x20, 0x52, "LocationDeadReckoning" },
{ 0x20, 0x53, "LocationGPS" },
{ 0x20, 0x54, "LocationLookup" },
{ 0x20, 0x55, "LocationOther" },
{ 0x20, 0x56, "LocationStatic" },
{ 0x20, 0x57, "LocationTriangulation" },
{ 0x20, 0x60, "Mechanical" },
{ 0x20, 0x61, "MechanicalBooleanSwitch" },
{ 0x20, 0x62, "MechanicalBooleanSwitchArray" },
{ 0x20, 0x63, "MechanicalMultivalueSwitch" },
{ 0x20, 0x64, "MechanicalForce" },
{ 0x20, 0x65, "MechanicalPressure" },
{ 0x20, 0x66, "MechanicalStrain" },
{ 0x20, 0x67, "MechanicalWeight" },
{ 0x20, 0x68, "MechanicalHapticVibrator" },
{ 0x20, 0x69, "MechanicalHallEffectSwitch" },
{ 0x20, 0x70, "Motion" },
{ 0x20, 0x71, "MotionAccelerometer1D" },
{ 0x20, 0x72, "MotionAccelerometer2D" },
{ 0x20, 0x73, "MotionAccelerometer3D" },
{ 0x20, 0x74, "MotionGyrometer1D" },
{ 0x20, 0x75, "MotionGyrometer2D" },
{ 0x20, 0x76, "MotionGyrometer3D" },
{ 0x20, 0x77, "MotionMotionDetector" },
{ 0x20, 0x78, "MotionSpeedometer" },
{ 0x20, 0x79, "MotionAccelerometer" },
{ 0x20, 0x7A, "MotionGyrometer" },
{ 0x20, 0x80, "Orientation" },
{ 0x20, 0x81, "OrientationCompass1D" },
{ 0x20, 0x82, "OrientationCompass2D" },
{ 0x20, 0x83, "OrientationCompass3D" },
{ 0x20, 0x84, "OrientationInclinometer1D" },
{ 0x20, 0x85, "OrientationInclinometer2D" },
{ 0x20, 0x86, "OrientationInclinometer3D" },
{ 0x20, 0x87, "OrientationDistance1D" },
{ 0x20, 0x88, "OrientationDistance2D" },
{ 0x20, 0x89, "OrientationDistance3D" },
{ 0x20, 0x8A, "OrientationDeviceOrientation" },
{ 0x20, 0x8B, "OrientationCompass" },
{ 0x20, 0x8C, "OrientationInclinometer" },
{ 0x20, 0x8D, "OrientationDistance" },
{ 0x20, 0x90, "Scanner" },
{ 0x20, 0x91, "ScannerBarcode" },
{ 0x20, 0x91, "ScannerRFID" },
{ 0x20, 0x91, "ScannerNFC" },
{ 0x20, 0xA0, "Time" },
{ 0x20, 0xA1, "TimeAlarmTimer" },
{ 0x20, 0xA2, "TimeRealTimeClock" },
{ 0x20, 0xE0, "Other" },
{ 0x20, 0xE1, "OtherCustom" },
{ 0x20, 0xE2, "OtherGeneric" },
{ 0x20, 0xE3, "OtherGenericEnumerator" },
{ 0x84, 0, "Power Device" },
{ 0x84, 0x02, "PresentStatus" },
{ 0x84, 0x03, "ChangeStatus" },
{ 0x84, 0x04, "UPS" },
{ 0x84, 0x05, "PowerSupply" },
{ 0x84, 0x10, "BatterySystem" },
{ 0x84, 0x11, "BatterySystemID" },
{ 0x84, 0x12, "Battery" },
{ 0x84, 0x13, "BatteryID" },
{ 0x84, 0x14, "Charger" },
{ 0x84, 0x15, "ChargerID" },
{ 0x84, 0x16, "PowerConverter" },
{ 0x84, 0x17, "PowerConverterID" },
{ 0x84, 0x18, "OutletSystem" },
{ 0x84, 0x19, "OutletSystemID" },
{ 0x84, 0x1a, "Input" },
{ 0x84, 0x1b, "InputID" },
{ 0x84, 0x1c, "Output" },
{ 0x84, 0x1d, "OutputID" },
{ 0x84, 0x1e, "Flow" },
{ 0x84, 0x1f, "FlowID" },
{ 0x84, 0x20, "Outlet" },
{ 0x84, 0x21, "OutletID" },
{ 0x84, 0x22, "Gang" },
{ 0x84, 0x24, "PowerSummary" },
{ 0x84, 0x25, "PowerSummaryID" },
{ 0x84, 0x30, "Voltage" },
{ 0x84, 0x31, "Current" },
{ 0x84, 0x32, "Frequency" },
{ 0x84, 0x33, "ApparentPower" },
{ 0x84, 0x35, "PercentLoad" },
{ 0x84, 0x40, "ConfigVoltage" },
{ 0x84, 0x41, "ConfigCurrent" },
{ 0x84, 0x43, "ConfigApparentPower" },
{ 0x84, 0x53, "LowVoltageTransfer" },
{ 0x84, 0x54, "HighVoltageTransfer" },
{ 0x84, 0x56, "DelayBeforeStartup" },
{ 0x84, 0x57, "DelayBeforeShutdown" },
{ 0x84, 0x58, "Test" },
{ 0x84, 0x5a, "AudibleAlarmControl" },
{ 0x84, 0x60, "Present" },
{ 0x84, 0x61, "Good" },
{ 0x84, 0x62, "InternalFailure" },
{ 0x84, 0x65, "Overload" },
{ 0x84, 0x66, "OverCharged" },
{ 0x84, 0x67, "OverTemperature" },
{ 0x84, 0x68, "ShutdownRequested" },
{ 0x84, 0x69, "ShutdownImminent" },
{ 0x84, 0x6b, "SwitchOn/Off" },
{ 0x84, 0x6c, "Switchable" },
{ 0x84, 0x6d, "Used" },
{ 0x84, 0x6e, "Boost" },
{ 0x84, 0x73, "CommunicationLost" },
{ 0x84, 0xfd, "iManufacturer" },
{ 0x84, 0xfe, "iProduct" },
{ 0x84, 0xff, "iSerialNumber" },
{ 0x85, 0, "Battery System" },
{ 0x85, 0x01, "SMBBatteryMode" },
{ 0x85, 0x02, "SMBBatteryStatus" },
{ 0x85, 0x03, "SMBAlarmWarning" },
{ 0x85, 0x04, "SMBChargerMode" },
{ 0x85, 0x05, "SMBChargerStatus" },
{ 0x85, 0x06, "SMBChargerSpecInfo" },
{ 0x85, 0x07, "SMBSelectorState" },
{ 0x85, 0x08, "SMBSelectorPresets" },
{ 0x85, 0x09, "SMBSelectorInfo" },
{ 0x85, 0x29, "RemainingCapacityLimit" },
{ 0x85, 0x2c, "CapacityMode" },
{ 0x85, 0x42, "BelowRemainingCapacityLimit" },
{ 0x85, 0x44, "Charging" },
{ 0x85, 0x45, "Discharging" },
{ 0x85, 0x4b, "NeedReplacement" },
{ 0x85, 0x65, "AbsoluteStateOfCharge" },
{ 0x85, 0x66, "RemainingCapacity" },
{ 0x85, 0x68, "RunTimeToEmpty" },
{ 0x85, 0x6a, "AverageTimeToFull" },
{ 0x85, 0x83, "DesignCapacity" },
{ 0x85, 0x85, "ManufacturerDate" },
{ 0x85, 0x89, "iDeviceChemistry" },
{ 0x85, 0x8b, "Rechargeable" },
{ 0x85, 0x8f, "iOEMInformation" },
{ 0x85, 0x8d, "CapacityGranularity1" },
{ 0x85, 0xd0, "ACPresent" },
/* pages 0xff00 to 0xffff are vendor-specific */
{ 0xffff, 0, "Vendor-specific-FF" },
{ 0, 0, NULL }
};
/* Either output directly into simple seq_file, or (if f == NULL)
* allocate a separate buffer that will then be passed to the 'events'
* ringbuffer.
*
* This is because these functions can be called both for "one-shot"
* "rdesc" while resolving, or for blocking "events".
*
* This holds both for resolv_usage_page() and hid_resolv_usage().
*/
static char *resolv_usage_page(unsigned page, struct seq_file *f) {
const struct hid_usage_entry *p;
char *buf = NULL;
if (!f) {
buf = kzalloc(HID_DEBUG_BUFSIZE, GFP_ATOMIC);
if (!buf)
return ERR_PTR(-ENOMEM);
}
for (p = hid_usage_table; p->description; p++)
if (p->page == page) {
if (!f) {
snprintf(buf, HID_DEBUG_BUFSIZE, "%s",
p->description);
return buf;
}
else {
seq_printf(f, "%s", p->description);
return NULL;
}
}
if (!f)
snprintf(buf, HID_DEBUG_BUFSIZE, "%04x", page);
else
seq_printf(f, "%04x", page);
return buf;
}
char *hid_resolv_usage(unsigned usage, struct seq_file *f) {
const struct hid_usage_entry *p;
char *buf = NULL;
int len = 0;
buf = resolv_usage_page(usage >> 16, f);
if (IS_ERR(buf)) {
pr_err("error allocating HID debug buffer\n");
return NULL;
}
if (!f) {
len = strlen(buf);
len += scnprintf(buf + len, HID_DEBUG_BUFSIZE - len, ".");
}
else {
seq_printf(f, ".");
}
for (p = hid_usage_table; p->description; p++)
if (p->page == (usage >> 16)) {
for(++p; p->description && p->usage != 0; p++)
if (p->usage == (usage & 0xffff)) {
if (!f)
snprintf(buf + len,
HID_DEBUG_BUFSIZE - len,
"%s", p->description);
else
seq_printf(f,
"%s",
p->description);
return buf;
}
break;
}
if (!f)
snprintf(buf + len, HID_DEBUG_BUFSIZE - len, "%04x",
usage & 0xffff);
else
seq_printf(f, "%04x", usage & 0xffff);
return buf;
}
EXPORT_SYMBOL_GPL(hid_resolv_usage);
static void tab(int n, struct seq_file *f) {
seq_printf(f, "%*s", n, "");
}
void hid_dump_field(struct hid_field *field, int n, struct seq_file *f) {
int j;
if (field->physical) {
tab(n, f);
seq_printf(f, "Physical(");
hid_resolv_usage(field->physical, f); seq_printf(f, ")\n");
}
if (field->logical) {
tab(n, f);
seq_printf(f, "Logical(");
hid_resolv_usage(field->logical, f); seq_printf(f, ")\n");
}
if (field->application) {
tab(n, f);
seq_printf(f, "Application(");
hid_resolv_usage(field->application, f); seq_printf(f, ")\n");
}
tab(n, f); seq_printf(f, "Usage(%d)\n", field->maxusage);
for (j = 0; j < field->maxusage; j++) {
tab(n+2, f); hid_resolv_usage(field->usage[j].hid, f); seq_printf(f, "\n");
}
if (field->logical_minimum != field->logical_maximum) {
tab(n, f); seq_printf(f, "Logical Minimum(%d)\n", field->logical_minimum);
tab(n, f); seq_printf(f, "Logical Maximum(%d)\n", field->logical_maximum);
}
if (field->physical_minimum != field->physical_maximum) {
tab(n, f); seq_printf(f, "Physical Minimum(%d)\n", field->physical_minimum);
tab(n, f); seq_printf(f, "Physical Maximum(%d)\n", field->physical_maximum);
}
if (field->unit_exponent) {
tab(n, f); seq_printf(f, "Unit Exponent(%d)\n", field->unit_exponent);
}
if (field->unit) {
static const char *systems[5] = { "None", "SI Linear", "SI Rotation", "English Linear", "English Rotation" };
static const char *units[5][8] = {
{ "None", "None", "None", "None", "None", "None", "None", "None" },
{ "None", "Centimeter", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" },
{ "None", "Radians", "Gram", "Seconds", "Kelvin", "Ampere", "Candela", "None" },
{ "None", "Inch", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" },
{ "None", "Degrees", "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" }
};
int i;
int sys;
__u32 data = field->unit;
/* First nibble tells us which system we're in. */
sys = data & 0xf;
data >>= 4;
if(sys > 4) {
tab(n, f); seq_printf(f, "Unit(Invalid)\n");
}
else {
int earlier_unit = 0;
tab(n, f); seq_printf(f, "Unit(%s : ", systems[sys]);
for (i=1 ; i<sizeof(__u32)*2 ; i++) {
char nibble = data & 0xf;
data >>= 4;
if (nibble != 0) {
if(earlier_unit++ > 0)
seq_printf(f, "*");
seq_printf(f, "%s", units[sys][i]);
if(nibble != 1) {
/* This is a _signed_ nibble(!) */
int val = nibble & 0x7;
if(nibble & 0x08)
val = -((0x7 & ~val) +1);
seq_printf(f, "^%d", val);
}
}
}
seq_printf(f, ")\n");
}
}
tab(n, f); seq_printf(f, "Report Size(%u)\n", field->report_size);
tab(n, f); seq_printf(f, "Report Count(%u)\n", field->report_count);
tab(n, f); seq_printf(f, "Report Offset(%u)\n", field->report_offset);
tab(n, f); seq_printf(f, "Flags( ");
j = field->flags;
seq_printf(f, "%s", HID_MAIN_ITEM_CONSTANT & j ? "Constant " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_VARIABLE & j ? "Variable " : "Array ");
seq_printf(f, "%s", HID_MAIN_ITEM_RELATIVE & j ? "Relative " : "Absolute ");
seq_printf(f, "%s", HID_MAIN_ITEM_WRAP & j ? "Wrap " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_NONLINEAR & j ? "NonLinear " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_NO_PREFERRED & j ? "NoPreferredState " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_NULL_STATE & j ? "NullState " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_VOLATILE & j ? "Volatile " : "");
seq_printf(f, "%s", HID_MAIN_ITEM_BUFFERED_BYTE & j ? "BufferedByte " : "");
seq_printf(f, ")\n");
}
EXPORT_SYMBOL_GPL(hid_dump_field);
void hid_dump_device(struct hid_device *device, struct seq_file *f)
{
struct hid_report_enum *report_enum;
struct hid_report *report;
struct list_head *list;
unsigned i,k;
static const char *table[] = {"INPUT", "OUTPUT", "FEATURE"};
for (i = 0; i < HID_REPORT_TYPES; i++) {
report_enum = device->report_enum + i;
list = report_enum->report_list.next;
while (list != &report_enum->report_list) {
report = (struct hid_report *) list;
tab(2, f);
seq_printf(f, "%s", table[i]);
if (report->id)
seq_printf(f, "(%d)", report->id);
seq_printf(f, "[%s]", table[report->type]);
seq_printf(f, "\n");
for (k = 0; k < report->maxfield; k++) {
tab(4, f);
seq_printf(f, "Field(%d)\n", k);
hid_dump_field(report->field[k], 6, f);
}
list = list->next;
}
}
}
EXPORT_SYMBOL_GPL(hid_dump_device);
/* enqueue string to 'events' ring buffer */
void hid_debug_event(struct hid_device *hdev, char *buf)
{
struct hid_debug_list *list;
unsigned long flags;
spin_lock_irqsave(&hdev->debug_list_lock, flags);
list_for_each_entry(list, &hdev->debug_list, node)
kfifo_in(&list->hid_debug_fifo, buf, strlen(buf));
spin_unlock_irqrestore(&hdev->debug_list_lock, flags);
wake_up_interruptible(&hdev->debug_wait);
}
EXPORT_SYMBOL_GPL(hid_debug_event);
void hid_dump_report(struct hid_device *hid, int type, u8 *data,
int size)
{
struct hid_report_enum *report_enum;
char *buf;
unsigned int i;
buf = kmalloc(HID_DEBUG_BUFSIZE, GFP_ATOMIC);
if (!buf)
return;
report_enum = hid->report_enum + type;
/* dump the report */
snprintf(buf, HID_DEBUG_BUFSIZE - 1,
"\nreport (size %u) (%snumbered) = ", size,
report_enum->numbered ? "" : "un");
hid_debug_event(hid, buf);
for (i = 0; i < size; i++) {
snprintf(buf, HID_DEBUG_BUFSIZE - 1,
" %02x", data[i]);
hid_debug_event(hid, buf);
}
hid_debug_event(hid, "\n");
kfree(buf);
}
EXPORT_SYMBOL_GPL(hid_dump_report);
void hid_dump_input(struct hid_device *hdev, struct hid_usage *usage, __s32 value)
{
char *buf;
int len;
buf = hid_resolv_usage(usage->hid, NULL);
if (!buf)
return;
len = strlen(buf);
snprintf(buf + len, HID_DEBUG_BUFSIZE - len - 1, " = %d\n", value);
hid_debug_event(hdev, buf);
kfree(buf);
wake_up_interruptible(&hdev->debug_wait);
}
EXPORT_SYMBOL_GPL(hid_dump_input);
static const char *events[EV_MAX + 1] = {
[EV_SYN] = "Sync", [EV_KEY] = "Key",
[EV_REL] = "Relative", [EV_ABS] = "Absolute",
[EV_MSC] = "Misc", [EV_LED] = "LED",
[EV_SND] = "Sound", [EV_REP] = "Repeat",
[EV_FF] = "ForceFeedback", [EV_PWR] = "Power",
[EV_FF_STATUS] = "ForceFeedbackStatus",
};
static const char *syncs[3] = {
[SYN_REPORT] = "Report", [SYN_CONFIG] = "Config",
[SYN_MT_REPORT] = "MT Report",
};
static const char *keys[KEY_MAX + 1] = {
[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
[KEY_1] = "1", [KEY_2] = "2",
[KEY_3] = "3", [KEY_4] = "4",
[KEY_5] = "5", [KEY_6] = "6",
[KEY_7] = "7", [KEY_8] = "8",
[KEY_9] = "9", [KEY_0] = "0",
[KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
[KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
[KEY_Q] = "Q", [KEY_W] = "W",
[KEY_E] = "E", [KEY_R] = "R",
[KEY_T] = "T", [KEY_Y] = "Y",
[KEY_U] = "U", [KEY_I] = "I",
[KEY_O] = "O", [KEY_P] = "P",
[KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
[KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
[KEY_A] = "A", [KEY_S] = "S",
[KEY_D] = "D", [KEY_F] = "F",
[KEY_G] = "G", [KEY_H] = "H",
[KEY_J] = "J", [KEY_K] = "K",
[KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
[KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
[KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
[KEY_Z] = "Z", [KEY_X] = "X",
[KEY_C] = "C", [KEY_V] = "V",
[KEY_B] = "B", [KEY_N] = "N",
[KEY_M] = "M", [KEY_COMMA] = "Comma",
[KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
[KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
[KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
[KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
[KEY_F2] = "F2", [KEY_F3] = "F3",
[KEY_F4] = "F4", [KEY_F5] = "F5",
[KEY_F6] = "F6", [KEY_F7] = "F7",
[KEY_F8] = "F8", [KEY_F9] = "F9",
[KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
[KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
[KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
[KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
[KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
[KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
[KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
[KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
[KEY_F11] = "F11", [KEY_F12] = "F12",
[KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana",
[KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan",
[KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan",
[KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
[KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
[KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
[KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
[KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
[KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
[KEY_END] = "End", [KEY_DOWN] = "Down",
[KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
[KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
[KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown",
[KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power",
[KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus",
[KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma",
[KEY_HANGUEL] = "Hangeul", [KEY_HANJA] = "Hanja",
[KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta",
[KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose",
[KEY_STOP] = "Stop", [KEY_AGAIN] = "Again",
[KEY_PROPS] = "Props", [KEY_UNDO] = "Undo",
[KEY_FRONT] = "Front", [KEY_COPY] = "Copy",
[KEY_OPEN] = "Open", [KEY_PASTE] = "Paste",
[KEY_FIND] = "Find", [KEY_CUT] = "Cut",
[KEY_HELP] = "Help", [KEY_MENU] = "Menu",
[KEY_CALC] = "Calc", [KEY_SETUP] = "Setup",
[KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp",
[KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile",
[KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer",
[KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2",
[KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS",
[KEY_COFFEE] = "Coffee", [KEY_ROTATE_DISPLAY] = "RotateDisplay",
[KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail",
[KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer",
[KEY_BACK] = "Back", [KEY_FORWARD] = "Forward",
[KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD",
[KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong",
[KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong",
[KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record",
[KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone",
[KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config",
[KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh",
[KEY_EXIT] = "Exit", [KEY_MOVE] = "Move",
[KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp",
[KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis",
[KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_NEW] = "New",
[KEY_REDO] = "Redo", [KEY_F13] = "F13",
[KEY_F14] = "F14", [KEY_F15] = "F15",
[KEY_F16] = "F16", [KEY_F17] = "F17",
[KEY_F18] = "F18", [KEY_F19] = "F19",
[KEY_F20] = "F20", [KEY_F21] = "F21",
[KEY_F22] = "F22", [KEY_F23] = "F23",
[KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD",
[KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3",
[KEY_PROG4] = "Prog4",
[KEY_ALL_APPLICATIONS] = "AllApplications",
[KEY_SUSPEND] = "Suspend",
[KEY_CLOSE] = "Close", [KEY_PLAY] = "Play",
[KEY_FASTFORWARD] = "FastForward", [KEY_BASSBOOST] = "BassBoost",
[KEY_PRINT] = "Print", [KEY_HP] = "HP",
[KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound",
[KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email",
[KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search",
[KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance",
[KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop",
[KEY_ALTERASE] = "AlternateErase", [KEY_CANCEL] = "Cancel",
[KEY_BRIGHTNESSDOWN] = "BrightnessDown", [KEY_BRIGHTNESSUP] = "BrightnessUp",
[KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown",
[BTN_DPAD_UP] = "BtnDPadUp", [BTN_DPAD_DOWN] = "BtnDPadDown",
[BTN_DPAD_LEFT] = "BtnDPadLeft", [BTN_DPAD_RIGHT] = "BtnDPadRight",
[BTN_0] = "Btn0", [BTN_1] = "Btn1",
[BTN_2] = "Btn2", [BTN_3] = "Btn3",
[BTN_4] = "Btn4", [BTN_5] = "Btn5",
[BTN_6] = "Btn6", [BTN_7] = "Btn7",
[BTN_8] = "Btn8", [BTN_9] = "Btn9",
[BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
[BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
[BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
[BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
[BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
[BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
[BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
[BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
[BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
[BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
[BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
[BTN_B] = "BtnB", [BTN_C] = "BtnC",
[BTN_X] = "BtnX", [BTN_Y] = "BtnY",
[BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
[BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
[BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
[BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
[BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
[BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber",
[BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil",
[BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger",
[BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens",
[BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
[BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "ToolDoubleTap",
[BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_TOOL_QUADTAP] = "ToolQuadrupleTap",
[BTN_GEAR_DOWN] = "WheelBtn",
[BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
[KEY_SELECT] = "Select", [KEY_GOTO] = "Goto",
[KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2",
[KEY_OPTION] = "Option", [KEY_INFO] = "Info",
[KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor",
[KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program",
[KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites",
[KEY_EPG] = "EPG", [KEY_PVR] = "PVR",
[KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language",
[KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle",
[KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom",
[KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard",
[KEY_SCREEN] = "Screen", [KEY_PC] = "PC",
[KEY_TV] = "TV", [KEY_TV2] = "TV2",
[KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2",
[KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2",
[KEY_CD] = "CD", [KEY_TAPE] = "Tape",
[KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner",
[KEY_PLAYER] = "Player", [KEY_TEXT] = "Text",
[KEY_DVD] = "DVD", [KEY_AUX] = "Aux",
[KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio",
[KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory",
[KEY_LIST] = "List", [KEY_MEMO] = "Memo",
[KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red",
[KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow",
[KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp",
[KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First",
[KEY_LAST] = "Last", [KEY_AB] = "AB",
[KEY_NEXT] = "Next", [KEY_RESTART] = "Restart",
[KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle",
[KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous",
[KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN",
[KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "DeleteEOL",
[KEY_DEL_EOS] = "DeleteEOS", [KEY_INS_LINE] = "InsertLine",
[KEY_DEL_LINE] = "DeleteLine",
[KEY_SEND] = "Send", [KEY_REPLY] = "Reply",
[KEY_FORWARDMAIL] = "ForwardMail", [KEY_SAVE] = "Save",
[KEY_DOCUMENTS] = "Documents", [KEY_SPELLCHECK] = "SpellCheck",
[KEY_LOGOFF] = "Logoff",
[KEY_FN] = "Fn", [KEY_FN_ESC] = "Fn+ESC",
[KEY_FN_1] = "Fn+1", [KEY_FN_2] = "Fn+2",
[KEY_FN_B] = "Fn+B", [KEY_FN_D] = "Fn+D",
[KEY_FN_E] = "Fn+E", [KEY_FN_F] = "Fn+F",
[KEY_FN_S] = "Fn+S",
[KEY_FN_F1] = "Fn+F1", [KEY_FN_F2] = "Fn+F2",
[KEY_FN_F3] = "Fn+F3", [KEY_FN_F4] = "Fn+F4",
[KEY_FN_F5] = "Fn+F5", [KEY_FN_F6] = "Fn+F6",
[KEY_FN_F7] = "Fn+F7", [KEY_FN_F8] = "Fn+F8",
[KEY_FN_F9] = "Fn+F9", [KEY_FN_F10] = "Fn+F10",
[KEY_FN_F11] = "Fn+F11", [KEY_FN_F12] = "Fn+F12",
[KEY_KBDILLUMTOGGLE] = "KbdIlluminationToggle",
[KEY_KBDILLUMDOWN] = "KbdIlluminationDown",
[KEY_KBDILLUMUP] = "KbdIlluminationUp",
[KEY_SWITCHVIDEOMODE] = "SwitchVideoMode",
[KEY_BUTTONCONFIG] = "ButtonConfig",
[KEY_TASKMANAGER] = "TaskManager",
[KEY_JOURNAL] = "Journal",
[KEY_CONTROLPANEL] = "ControlPanel",
[KEY_APPSELECT] = "AppSelect",
[KEY_SCREENSAVER] = "ScreenSaver",
[KEY_VOICECOMMAND] = "VoiceCommand",
[KEY_ASSISTANT] = "Assistant",
[KEY_KBD_LAYOUT_NEXT] = "KbdLayoutNext",
[KEY_EMOJI_PICKER] = "EmojiPicker",
[KEY_CAMERA_ACCESS_ENABLE] = "CameraAccessEnable",
[KEY_CAMERA_ACCESS_DISABLE] = "CameraAccessDisable",
[KEY_CAMERA_ACCESS_TOGGLE] = "CameraAccessToggle",
[KEY_DICTATE] = "Dictate",
[KEY_MICMUTE] = "MicrophoneMute",
[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
[KEY_KBDINPUTASSIST_PREV] = "KbdInputAssistPrev",
[KEY_KBDINPUTASSIST_NEXT] = "KbdInputAssistNext",
[KEY_KBDINPUTASSIST_PREVGROUP] = "KbdInputAssistPrevGroup",
[KEY_KBDINPUTASSIST_NEXTGROUP] = "KbdInputAssistNextGroup",
[KEY_KBDINPUTASSIST_ACCEPT] = "KbdInputAssistAccept",
[KEY_KBDINPUTASSIST_CANCEL] = "KbdInputAssistCancel",
[KEY_MACRO1] = "Macro1", [KEY_MACRO2] = "Macro2", [KEY_MACRO3] = "Macro3",
[KEY_MACRO4] = "Macro4", [KEY_MACRO5] = "Macro5", [KEY_MACRO6] = "Macro6",
[KEY_MACRO7] = "Macro7", [KEY_MACRO8] = "Macro8", [KEY_MACRO9] = "Macro9",
[KEY_MACRO10] = "Macro10", [KEY_MACRO11] = "Macro11", [KEY_MACRO12] = "Macro12",
[KEY_MACRO13] = "Macro13", [KEY_MACRO14] = "Macro14", [KEY_MACRO15] = "Macro15",
[KEY_MACRO16] = "Macro16", [KEY_MACRO17] = "Macro17", [KEY_MACRO18] = "Macro18",
[KEY_MACRO19] = "Macro19", [KEY_MACRO20] = "Macro20", [KEY_MACRO21] = "Macro21",
[KEY_MACRO22] = "Macro22", [KEY_MACRO23] = "Macro23", [KEY_MACRO24] = "Macro24",
[KEY_MACRO25] = "Macro25", [KEY_MACRO26] = "Macro26", [KEY_MACRO27] = "Macro27",
[KEY_MACRO28] = "Macro28", [KEY_MACRO29] = "Macro29", [KEY_MACRO30] = "Macro30",
};
static const char *relatives[REL_MAX + 1] = {
[REL_X] = "X", [REL_Y] = "Y",
[REL_Z] = "Z", [REL_RX] = "Rx",
[REL_RY] = "Ry", [REL_RZ] = "Rz",
[REL_HWHEEL] = "HWheel", [REL_DIAL] = "Dial",
[REL_WHEEL] = "Wheel", [REL_MISC] = "Misc",
};
static const char *absolutes[ABS_CNT] = {
[ABS_X] = "X", [ABS_Y] = "Y",
[ABS_Z] = "Z", [ABS_RX] = "Rx",
[ABS_RY] = "Ry", [ABS_RZ] = "Rz",
[ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder",
[ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas",
[ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X",
[ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X",
[ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X",
[ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X",
[ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure",
[ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt",
[ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "ToolWidth",
[ABS_VOLUME] = "Volume", [ABS_PROFILE] = "Profile",
[ABS_MISC] = "Misc",
[ABS_MT_TOUCH_MAJOR] = "MTMajor",
[ABS_MT_TOUCH_MINOR] = "MTMinor",
[ABS_MT_WIDTH_MAJOR] = "MTMajorW",
[ABS_MT_WIDTH_MINOR] = "MTMinorW",
[ABS_MT_ORIENTATION] = "MTOrientation",
[ABS_MT_POSITION_X] = "MTPositionX",
[ABS_MT_POSITION_Y] = "MTPositionY",
[ABS_MT_TOOL_TYPE] = "MTToolType",
[ABS_MT_BLOB_ID] = "MTBlobID",
};
static const char *misc[MSC_MAX + 1] = {
[MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled",
[MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData"
};
static const char *leds[LED_MAX + 1] = {
[LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock",
[LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose",
[LED_KANA] = "Kana", [LED_SLEEP] = "Sleep",
[LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute",
[LED_MISC] = "Misc",
};
static const char *repeats[REP_MAX + 1] = {
[REP_DELAY] = "Delay", [REP_PERIOD] = "Period"
};
static const char *sounds[SND_MAX + 1] = {
[SND_CLICK] = "Click", [SND_BELL] = "Bell",
[SND_TONE] = "Tone"
};
static const char **names[EV_MAX + 1] = {
[EV_SYN] = syncs, [EV_KEY] = keys,
[EV_REL] = relatives, [EV_ABS] = absolutes,
[EV_MSC] = misc, [EV_LED] = leds,
[EV_SND] = sounds, [EV_REP] = repeats,
};
static void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f)
{
seq_printf(f, "%s.%s", events[type] ? events[type] : "?",
names[type] ? (names[type][code] ? names[type][code] : "?") : "?");
}
static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
{
int i, j, k;
struct hid_report *report;
struct hid_usage *usage;
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
for (i = 0; i < report->maxfield; i++) {
for ( j = 0; j < report->field[i]->maxusage; j++) {
usage = report->field[i]->usage + j;
hid_resolv_usage(usage->hid, f);
seq_printf(f, " ---> ");
hid_resolv_event(usage->type, usage->code, f);
seq_printf(f, "\n");
}
}
}
}
}
static int hid_debug_rdesc_show(struct seq_file *f, void *p)
{
struct hid_device *hdev = f->private;
const __u8 *rdesc = hdev->rdesc;
unsigned rsize = hdev->rsize;
int i;
if (!rdesc) {
rdesc = hdev->dev_rdesc;
rsize = hdev->dev_rsize;
}
/* dump HID report descriptor */
for (i = 0; i < rsize; i++)
seq_printf(f, "%02x ", rdesc[i]);
seq_printf(f, "\n\n");
/* dump parsed data and input mappings */
if (down_interruptible(&hdev->driver_input_lock))
return 0;
hid_dump_device(hdev, f);
seq_printf(f, "\n");
hid_dump_input_mapping(hdev, f);
up(&hdev->driver_input_lock);
return 0;
}
static int hid_debug_events_open(struct inode *inode, struct file *file)
{
int err = 0;
struct hid_debug_list *list;
unsigned long flags;
if (!(list = kzalloc(sizeof(struct hid_debug_list), GFP_KERNEL))) {
err = -ENOMEM;
goto out;
}
err = kfifo_alloc(&list->hid_debug_fifo, HID_DEBUG_FIFOSIZE, GFP_KERNEL);
if (err) {
kfree(list);
goto out;
}
list->hdev = (struct hid_device *) inode->i_private;
file->private_data = list;
mutex_init(&list->read_mutex);
spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
list_add_tail(&list->node, &list->hdev->debug_list);
spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
out:
return err;
}
static ssize_t hid_debug_events_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct hid_debug_list *list = file->private_data;
int ret = 0, copied;
DECLARE_WAITQUEUE(wait, current);
mutex_lock(&list->read_mutex);
if (kfifo_is_empty(&list->hid_debug_fifo)) {
add_wait_queue(&list->hdev->debug_wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
while (kfifo_is_empty(&list->hid_debug_fifo)) {
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
/* if list->hdev is NULL we cannot remove_wait_queue().
* if list->hdev->debug is 0 then hid_debug_unregister()
* was already called and list->hdev is being destroyed.
* if we add remove_wait_queue() here we can hit a race.
*/
if (!list->hdev || !list->hdev->debug) {
ret = -EIO;
set_current_state(TASK_RUNNING);
goto out;
}
if (file->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
break;
}
/* allow O_NONBLOCK from other threads */
mutex_unlock(&list->read_mutex);
schedule();
mutex_lock(&list->read_mutex);
set_current_state(TASK_INTERRUPTIBLE);
}
__set_current_state(TASK_RUNNING);
remove_wait_queue(&list->hdev->debug_wait, &wait);
if (ret)
goto out;
}
/* pass the fifo content to userspace, locking is not needed with only
* one concurrent reader and one concurrent writer
*/
ret = kfifo_to_user(&list->hid_debug_fifo, buffer, count, &copied);
if (ret)
goto out;
ret = copied;
out:
mutex_unlock(&list->read_mutex);
return ret;
}
static __poll_t hid_debug_events_poll(struct file *file, poll_table *wait)
{
struct hid_debug_list *list = file->private_data;
poll_wait(file, &list->hdev->debug_wait, wait);
if (!kfifo_is_empty(&list->hid_debug_fifo))
return EPOLLIN | EPOLLRDNORM;
if (!list->hdev->debug)
return EPOLLERR | EPOLLHUP;
return 0;
}
static int hid_debug_events_release(struct inode *inode, struct file *file)
{
struct hid_debug_list *list = file->private_data;
unsigned long flags;
spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
list_del(&list->node);
spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
kfifo_free(&list->hid_debug_fifo);
kfree(list);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(hid_debug_rdesc);
static const struct file_operations hid_debug_events_fops = {
.owner = THIS_MODULE,
.open = hid_debug_events_open,
.read = hid_debug_events_read,
.poll = hid_debug_events_poll,
.release = hid_debug_events_release,
.llseek = noop_llseek,
};
void hid_debug_register(struct hid_device *hdev, const char *name)
{
hdev->debug_dir = debugfs_create_dir(name, hid_debug_root);
hdev->debug_rdesc = debugfs_create_file("rdesc", 0400,
hdev->debug_dir, hdev, &hid_debug_rdesc_fops);
hdev->debug_events = debugfs_create_file("events", 0400,
hdev->debug_dir, hdev, &hid_debug_events_fops);
hdev->debug = 1;
}
void hid_debug_unregister(struct hid_device *hdev)
{
hdev->debug = 0;
wake_up_interruptible(&hdev->debug_wait);
debugfs_remove(hdev->debug_rdesc);
debugfs_remove(hdev->debug_events);
debugfs_remove(hdev->debug_dir);
}
void hid_debug_init(void)
{
hid_debug_root = debugfs_create_dir("hid", NULL);
}
void hid_debug_exit(void)
{
debugfs_remove_recursive(hid_debug_root);
}
| linux-master | drivers/hid/hid-debug.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* User-space I/O driver support for HID subsystem
* Copyright (c) 2012 David Herrmann
*/
/*
*/
#include <linux/atomic.h>
#include <linux/compat.h>
#include <linux/cred.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/uhid.h>
#include <linux/wait.h>
#define UHID_NAME "uhid"
#define UHID_BUFSIZE 32
struct uhid_device {
struct mutex devlock;
/* This flag tracks whether the HID device is usable for commands from
* userspace. The flag is already set before hid_add_device(), which
* runs in workqueue context, to allow hid_add_device() to communicate
* with userspace.
* However, if hid_add_device() fails, the flag is cleared without
* holding devlock.
* We guarantee that if @running changes from true to false while you're
* holding @devlock, it's still fine to access @hid.
*/
bool running;
__u8 *rd_data;
uint rd_size;
/* When this is NULL, userspace may use UHID_CREATE/UHID_CREATE2. */
struct hid_device *hid;
struct uhid_event input_buf;
wait_queue_head_t waitq;
spinlock_t qlock;
__u8 head;
__u8 tail;
struct uhid_event *outq[UHID_BUFSIZE];
/* blocking GET_REPORT support; state changes protected by qlock */
struct mutex report_lock;
wait_queue_head_t report_wait;
bool report_running;
u32 report_id;
u32 report_type;
struct uhid_event report_buf;
struct work_struct worker;
};
static struct miscdevice uhid_misc;
static void uhid_device_add_worker(struct work_struct *work)
{
struct uhid_device *uhid = container_of(work, struct uhid_device, worker);
int ret;
ret = hid_add_device(uhid->hid);
if (ret) {
hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
/* We used to call hid_destroy_device() here, but that's really
* messy to get right because we have to coordinate with
* concurrent writes from userspace that might be in the middle
* of using uhid->hid.
* Just leave uhid->hid as-is for now, and clean it up when
* userspace tries to close or reinitialize the uhid instance.
*
* However, we do have to clear the ->running flag and do a
* wakeup to make sure userspace knows that the device is gone.
*/
WRITE_ONCE(uhid->running, false);
wake_up_interruptible(&uhid->report_wait);
}
}
static void uhid_queue(struct uhid_device *uhid, struct uhid_event *ev)
{
__u8 newhead;
newhead = (uhid->head + 1) % UHID_BUFSIZE;
if (newhead != uhid->tail) {
uhid->outq[uhid->head] = ev;
uhid->head = newhead;
wake_up_interruptible(&uhid->waitq);
} else {
hid_warn(uhid->hid, "Output queue is full\n");
kfree(ev);
}
}
static int uhid_queue_event(struct uhid_device *uhid, __u32 event)
{
unsigned long flags;
struct uhid_event *ev;
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;
ev->type = event;
spin_lock_irqsave(&uhid->qlock, flags);
uhid_queue(uhid, ev);
spin_unlock_irqrestore(&uhid->qlock, flags);
return 0;
}
static int uhid_hid_start(struct hid_device *hid)
{
struct uhid_device *uhid = hid->driver_data;
struct uhid_event *ev;
unsigned long flags;
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;
ev->type = UHID_START;
if (hid->report_enum[HID_FEATURE_REPORT].numbered)
ev->u.start.dev_flags |= UHID_DEV_NUMBERED_FEATURE_REPORTS;
if (hid->report_enum[HID_OUTPUT_REPORT].numbered)
ev->u.start.dev_flags |= UHID_DEV_NUMBERED_OUTPUT_REPORTS;
if (hid->report_enum[HID_INPUT_REPORT].numbered)
ev->u.start.dev_flags |= UHID_DEV_NUMBERED_INPUT_REPORTS;
spin_lock_irqsave(&uhid->qlock, flags);
uhid_queue(uhid, ev);
spin_unlock_irqrestore(&uhid->qlock, flags);
return 0;
}
static void uhid_hid_stop(struct hid_device *hid)
{
struct uhid_device *uhid = hid->driver_data;
hid->claimed = 0;
uhid_queue_event(uhid, UHID_STOP);
}
static int uhid_hid_open(struct hid_device *hid)
{
struct uhid_device *uhid = hid->driver_data;
return uhid_queue_event(uhid, UHID_OPEN);
}
static void uhid_hid_close(struct hid_device *hid)
{
struct uhid_device *uhid = hid->driver_data;
uhid_queue_event(uhid, UHID_CLOSE);
}
static int uhid_hid_parse(struct hid_device *hid)
{
struct uhid_device *uhid = hid->driver_data;
return hid_parse_report(hid, uhid->rd_data, uhid->rd_size);
}
/* must be called with report_lock held */
static int __uhid_report_queue_and_wait(struct uhid_device *uhid,
struct uhid_event *ev,
__u32 *report_id)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&uhid->qlock, flags);
*report_id = ++uhid->report_id;
uhid->report_type = ev->type + 1;
uhid->report_running = true;
uhid_queue(uhid, ev);
spin_unlock_irqrestore(&uhid->qlock, flags);
ret = wait_event_interruptible_timeout(uhid->report_wait,
!uhid->report_running || !READ_ONCE(uhid->running),
5 * HZ);
if (!ret || !READ_ONCE(uhid->running) || uhid->report_running)
ret = -EIO;
else if (ret < 0)
ret = -ERESTARTSYS;
else
ret = 0;
uhid->report_running = false;
return ret;
}
static void uhid_report_wake_up(struct uhid_device *uhid, u32 id,
const struct uhid_event *ev)
{
unsigned long flags;
spin_lock_irqsave(&uhid->qlock, flags);
/* id for old report; drop it silently */
if (uhid->report_type != ev->type || uhid->report_id != id)
goto unlock;
if (!uhid->report_running)
goto unlock;
memcpy(&uhid->report_buf, ev, sizeof(*ev));
uhid->report_running = false;
wake_up_interruptible(&uhid->report_wait);
unlock:
spin_unlock_irqrestore(&uhid->qlock, flags);
}
static int uhid_hid_get_report(struct hid_device *hid, unsigned char rnum,
u8 *buf, size_t count, u8 rtype)
{
struct uhid_device *uhid = hid->driver_data;
struct uhid_get_report_reply_req *req;
struct uhid_event *ev;
int ret;
if (!READ_ONCE(uhid->running))
return -EIO;
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;
ev->type = UHID_GET_REPORT;
ev->u.get_report.rnum = rnum;
ev->u.get_report.rtype = rtype;
ret = mutex_lock_interruptible(&uhid->report_lock);
if (ret) {
kfree(ev);
return ret;
}
/* this _always_ takes ownership of @ev */
ret = __uhid_report_queue_and_wait(uhid, ev, &ev->u.get_report.id);
if (ret)
goto unlock;
req = &uhid->report_buf.u.get_report_reply;
if (req->err) {
ret = -EIO;
} else {
ret = min3(count, (size_t)req->size, (size_t)UHID_DATA_MAX);
memcpy(buf, req->data, ret);
}
unlock:
mutex_unlock(&uhid->report_lock);
return ret;
}
static int uhid_hid_set_report(struct hid_device *hid, unsigned char rnum,
const u8 *buf, size_t count, u8 rtype)
{
struct uhid_device *uhid = hid->driver_data;
struct uhid_event *ev;
int ret;
if (!READ_ONCE(uhid->running) || count > UHID_DATA_MAX)
return -EIO;
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;
ev->type = UHID_SET_REPORT;
ev->u.set_report.rnum = rnum;
ev->u.set_report.rtype = rtype;
ev->u.set_report.size = count;
memcpy(ev->u.set_report.data, buf, count);
ret = mutex_lock_interruptible(&uhid->report_lock);
if (ret) {
kfree(ev);
return ret;
}
/* this _always_ takes ownership of @ev */
ret = __uhid_report_queue_and_wait(uhid, ev, &ev->u.set_report.id);
if (ret)
goto unlock;
if (uhid->report_buf.u.set_report_reply.err)
ret = -EIO;
else
ret = count;
unlock:
mutex_unlock(&uhid->report_lock);
return ret;
}
static int uhid_hid_raw_request(struct hid_device *hid, unsigned char reportnum,
__u8 *buf, size_t len, unsigned char rtype,
int reqtype)
{
u8 u_rtype;
switch (rtype) {
case HID_FEATURE_REPORT:
u_rtype = UHID_FEATURE_REPORT;
break;
case HID_OUTPUT_REPORT:
u_rtype = UHID_OUTPUT_REPORT;
break;
case HID_INPUT_REPORT:
u_rtype = UHID_INPUT_REPORT;
break;
default:
return -EINVAL;
}
switch (reqtype) {
case HID_REQ_GET_REPORT:
return uhid_hid_get_report(hid, reportnum, buf, len, u_rtype);
case HID_REQ_SET_REPORT:
return uhid_hid_set_report(hid, reportnum, buf, len, u_rtype);
default:
return -EIO;
}
}
static int uhid_hid_output_raw(struct hid_device *hid, __u8 *buf, size_t count,
unsigned char report_type)
{
struct uhid_device *uhid = hid->driver_data;
__u8 rtype;
unsigned long flags;
struct uhid_event *ev;
switch (report_type) {
case HID_FEATURE_REPORT:
rtype = UHID_FEATURE_REPORT;
break;
case HID_OUTPUT_REPORT:
rtype = UHID_OUTPUT_REPORT;
break;
default:
return -EINVAL;
}
if (count < 1 || count > UHID_DATA_MAX)
return -EINVAL;
ev = kzalloc(sizeof(*ev), GFP_KERNEL);
if (!ev)
return -ENOMEM;
ev->type = UHID_OUTPUT;
ev->u.output.size = count;
ev->u.output.rtype = rtype;
memcpy(ev->u.output.data, buf, count);
spin_lock_irqsave(&uhid->qlock, flags);
uhid_queue(uhid, ev);
spin_unlock_irqrestore(&uhid->qlock, flags);
return count;
}
static int uhid_hid_output_report(struct hid_device *hid, __u8 *buf,
size_t count)
{
return uhid_hid_output_raw(hid, buf, count, HID_OUTPUT_REPORT);
}
static const struct hid_ll_driver uhid_hid_driver = {
.start = uhid_hid_start,
.stop = uhid_hid_stop,
.open = uhid_hid_open,
.close = uhid_hid_close,
.parse = uhid_hid_parse,
.raw_request = uhid_hid_raw_request,
.output_report = uhid_hid_output_report,
.max_buffer_size = UHID_DATA_MAX,
};
#ifdef CONFIG_COMPAT
/* Apparently we haven't stepped on these rakes enough times yet. */
struct uhid_create_req_compat {
__u8 name[128];
__u8 phys[64];
__u8 uniq[64];
compat_uptr_t rd_data;
__u16 rd_size;
__u16 bus;
__u32 vendor;
__u32 product;
__u32 version;
__u32 country;
} __attribute__((__packed__));
static int uhid_event_from_user(const char __user *buffer, size_t len,
struct uhid_event *event)
{
if (in_compat_syscall()) {
u32 type;
if (get_user(type, buffer))
return -EFAULT;
if (type == UHID_CREATE) {
/*
* This is our messed up request with compat pointer.
* It is largish (more than 256 bytes) so we better
* allocate it from the heap.
*/
struct uhid_create_req_compat *compat;
compat = kzalloc(sizeof(*compat), GFP_KERNEL);
if (!compat)
return -ENOMEM;
buffer += sizeof(type);
len -= sizeof(type);
if (copy_from_user(compat, buffer,
min(len, sizeof(*compat)))) {
kfree(compat);
return -EFAULT;
}
/* Shuffle the data over to proper structure */
event->type = type;
memcpy(event->u.create.name, compat->name,
sizeof(compat->name));
memcpy(event->u.create.phys, compat->phys,
sizeof(compat->phys));
memcpy(event->u.create.uniq, compat->uniq,
sizeof(compat->uniq));
event->u.create.rd_data = compat_ptr(compat->rd_data);
event->u.create.rd_size = compat->rd_size;
event->u.create.bus = compat->bus;
event->u.create.vendor = compat->vendor;
event->u.create.product = compat->product;
event->u.create.version = compat->version;
event->u.create.country = compat->country;
kfree(compat);
return 0;
}
/* All others can be copied directly */
}
if (copy_from_user(event, buffer, min(len, sizeof(*event))))
return -EFAULT;
return 0;
}
#else
static int uhid_event_from_user(const char __user *buffer, size_t len,
struct uhid_event *event)
{
if (copy_from_user(event, buffer, min(len, sizeof(*event))))
return -EFAULT;
return 0;
}
#endif
static int uhid_dev_create2(struct uhid_device *uhid,
const struct uhid_event *ev)
{
struct hid_device *hid;
size_t rd_size, len;
void *rd_data;
int ret;
if (uhid->hid)
return -EALREADY;
rd_size = ev->u.create2.rd_size;
if (rd_size <= 0 || rd_size > HID_MAX_DESCRIPTOR_SIZE)
return -EINVAL;
rd_data = kmemdup(ev->u.create2.rd_data, rd_size, GFP_KERNEL);
if (!rd_data)
return -ENOMEM;
uhid->rd_size = rd_size;
uhid->rd_data = rd_data;
hid = hid_allocate_device();
if (IS_ERR(hid)) {
ret = PTR_ERR(hid);
goto err_free;
}
/* @hid is zero-initialized, strncpy() is correct, strlcpy() not */
len = min(sizeof(hid->name), sizeof(ev->u.create2.name)) - 1;
strncpy(hid->name, ev->u.create2.name, len);
len = min(sizeof(hid->phys), sizeof(ev->u.create2.phys)) - 1;
strncpy(hid->phys, ev->u.create2.phys, len);
len = min(sizeof(hid->uniq), sizeof(ev->u.create2.uniq)) - 1;
strncpy(hid->uniq, ev->u.create2.uniq, len);
hid->ll_driver = &uhid_hid_driver;
hid->bus = ev->u.create2.bus;
hid->vendor = ev->u.create2.vendor;
hid->product = ev->u.create2.product;
hid->version = ev->u.create2.version;
hid->country = ev->u.create2.country;
hid->driver_data = uhid;
hid->dev.parent = uhid_misc.this_device;
uhid->hid = hid;
uhid->running = true;
/* Adding of a HID device is done through a worker, to allow HID drivers
* which use feature requests during .probe to work, without they would
* be blocked on devlock, which is held by uhid_char_write.
*/
schedule_work(&uhid->worker);
return 0;
err_free:
kfree(uhid->rd_data);
uhid->rd_data = NULL;
uhid->rd_size = 0;
return ret;
}
static int uhid_dev_create(struct uhid_device *uhid,
struct uhid_event *ev)
{
struct uhid_create_req orig;
orig = ev->u.create;
if (orig.rd_size <= 0 || orig.rd_size > HID_MAX_DESCRIPTOR_SIZE)
return -EINVAL;
if (copy_from_user(&ev->u.create2.rd_data, orig.rd_data, orig.rd_size))
return -EFAULT;
memcpy(ev->u.create2.name, orig.name, sizeof(orig.name));
memcpy(ev->u.create2.phys, orig.phys, sizeof(orig.phys));
memcpy(ev->u.create2.uniq, orig.uniq, sizeof(orig.uniq));
ev->u.create2.rd_size = orig.rd_size;
ev->u.create2.bus = orig.bus;
ev->u.create2.vendor = orig.vendor;
ev->u.create2.product = orig.product;
ev->u.create2.version = orig.version;
ev->u.create2.country = orig.country;
return uhid_dev_create2(uhid, ev);
}
static int uhid_dev_destroy(struct uhid_device *uhid)
{
if (!uhid->hid)
return -EINVAL;
WRITE_ONCE(uhid->running, false);
wake_up_interruptible(&uhid->report_wait);
cancel_work_sync(&uhid->worker);
hid_destroy_device(uhid->hid);
uhid->hid = NULL;
kfree(uhid->rd_data);
return 0;
}
static int uhid_dev_input(struct uhid_device *uhid, struct uhid_event *ev)
{
if (!READ_ONCE(uhid->running))
return -EINVAL;
hid_input_report(uhid->hid, HID_INPUT_REPORT, ev->u.input.data,
min_t(size_t, ev->u.input.size, UHID_DATA_MAX), 0);
return 0;
}
static int uhid_dev_input2(struct uhid_device *uhid, struct uhid_event *ev)
{
if (!READ_ONCE(uhid->running))
return -EINVAL;
hid_input_report(uhid->hid, HID_INPUT_REPORT, ev->u.input2.data,
min_t(size_t, ev->u.input2.size, UHID_DATA_MAX), 0);
return 0;
}
static int uhid_dev_get_report_reply(struct uhid_device *uhid,
struct uhid_event *ev)
{
if (!READ_ONCE(uhid->running))
return -EINVAL;
uhid_report_wake_up(uhid, ev->u.get_report_reply.id, ev);
return 0;
}
static int uhid_dev_set_report_reply(struct uhid_device *uhid,
struct uhid_event *ev)
{
if (!READ_ONCE(uhid->running))
return -EINVAL;
uhid_report_wake_up(uhid, ev->u.set_report_reply.id, ev);
return 0;
}
static int uhid_char_open(struct inode *inode, struct file *file)
{
struct uhid_device *uhid;
uhid = kzalloc(sizeof(*uhid), GFP_KERNEL);
if (!uhid)
return -ENOMEM;
mutex_init(&uhid->devlock);
mutex_init(&uhid->report_lock);
spin_lock_init(&uhid->qlock);
init_waitqueue_head(&uhid->waitq);
init_waitqueue_head(&uhid->report_wait);
uhid->running = false;
INIT_WORK(&uhid->worker, uhid_device_add_worker);
file->private_data = uhid;
stream_open(inode, file);
return 0;
}
static int uhid_char_release(struct inode *inode, struct file *file)
{
struct uhid_device *uhid = file->private_data;
unsigned int i;
uhid_dev_destroy(uhid);
for (i = 0; i < UHID_BUFSIZE; ++i)
kfree(uhid->outq[i]);
kfree(uhid);
return 0;
}
static ssize_t uhid_char_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)
{
struct uhid_device *uhid = file->private_data;
int ret;
unsigned long flags;
size_t len;
/* they need at least the "type" member of uhid_event */
if (count < sizeof(__u32))
return -EINVAL;
try_again:
if (file->f_flags & O_NONBLOCK) {
if (uhid->head == uhid->tail)
return -EAGAIN;
} else {
ret = wait_event_interruptible(uhid->waitq,
uhid->head != uhid->tail);
if (ret)
return ret;
}
ret = mutex_lock_interruptible(&uhid->devlock);
if (ret)
return ret;
if (uhid->head == uhid->tail) {
mutex_unlock(&uhid->devlock);
goto try_again;
} else {
len = min(count, sizeof(**uhid->outq));
if (copy_to_user(buffer, uhid->outq[uhid->tail], len)) {
ret = -EFAULT;
} else {
kfree(uhid->outq[uhid->tail]);
uhid->outq[uhid->tail] = NULL;
spin_lock_irqsave(&uhid->qlock, flags);
uhid->tail = (uhid->tail + 1) % UHID_BUFSIZE;
spin_unlock_irqrestore(&uhid->qlock, flags);
}
}
mutex_unlock(&uhid->devlock);
return ret ? ret : len;
}
static ssize_t uhid_char_write(struct file *file, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct uhid_device *uhid = file->private_data;
int ret;
size_t len;
/* we need at least the "type" member of uhid_event */
if (count < sizeof(__u32))
return -EINVAL;
ret = mutex_lock_interruptible(&uhid->devlock);
if (ret)
return ret;
memset(&uhid->input_buf, 0, sizeof(uhid->input_buf));
len = min(count, sizeof(uhid->input_buf));
ret = uhid_event_from_user(buffer, len, &uhid->input_buf);
if (ret)
goto unlock;
switch (uhid->input_buf.type) {
case UHID_CREATE:
/*
* 'struct uhid_create_req' contains a __user pointer which is
* copied from, so it's unsafe to allow this with elevated
* privileges (e.g. from a setuid binary) or via kernel_write().
*/
if (file->f_cred != current_cred()) {
pr_err_once("UHID_CREATE from different security context by process %d (%s), this is not allowed.\n",
task_tgid_vnr(current), current->comm);
ret = -EACCES;
goto unlock;
}
ret = uhid_dev_create(uhid, &uhid->input_buf);
break;
case UHID_CREATE2:
ret = uhid_dev_create2(uhid, &uhid->input_buf);
break;
case UHID_DESTROY:
ret = uhid_dev_destroy(uhid);
break;
case UHID_INPUT:
ret = uhid_dev_input(uhid, &uhid->input_buf);
break;
case UHID_INPUT2:
ret = uhid_dev_input2(uhid, &uhid->input_buf);
break;
case UHID_GET_REPORT_REPLY:
ret = uhid_dev_get_report_reply(uhid, &uhid->input_buf);
break;
case UHID_SET_REPORT_REPLY:
ret = uhid_dev_set_report_reply(uhid, &uhid->input_buf);
break;
default:
ret = -EOPNOTSUPP;
}
unlock:
mutex_unlock(&uhid->devlock);
/* return "count" not "len" to not confuse the caller */
return ret ? ret : count;
}
static __poll_t uhid_char_poll(struct file *file, poll_table *wait)
{
struct uhid_device *uhid = file->private_data;
__poll_t mask = EPOLLOUT | EPOLLWRNORM; /* uhid is always writable */
poll_wait(file, &uhid->waitq, wait);
if (uhid->head != uhid->tail)
mask |= EPOLLIN | EPOLLRDNORM;
return mask;
}
static const struct file_operations uhid_fops = {
.owner = THIS_MODULE,
.open = uhid_char_open,
.release = uhid_char_release,
.read = uhid_char_read,
.write = uhid_char_write,
.poll = uhid_char_poll,
.llseek = no_llseek,
};
static struct miscdevice uhid_misc = {
.fops = &uhid_fops,
.minor = UHID_MINOR,
.name = UHID_NAME,
};
module_misc_device(uhid_misc);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <[email protected]>");
MODULE_DESCRIPTION("User-space I/O driver support for HID subsystem");
MODULE_ALIAS_MISCDEV(UHID_MINOR);
MODULE_ALIAS("devname:" UHID_NAME);
| linux-master | drivers/hid/uhid.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some ezkey "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
#define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
static int ez_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x230: ez_map_key(BTN_MOUSE); break;
case 0x231: ez_map_rel(REL_WHEEL); break;
/*
* this keyboard has a scrollwheel implemented in
* totally broken way. We map this usage temporarily
* to HWHEEL and handle it in the event quirk handler
*/
case 0x232: ez_map_rel(REL_HWHEEL); break;
default:
return 0;
}
return 1;
}
static int ez_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
/* handle the temporary quirky mapping to HWHEEL */
if (usage->type == EV_REL && usage->code == REL_HWHEEL) {
struct input_dev *input = field->hidinput->input;
input_event(input, usage->type, REL_WHEEL, -value);
return 1;
}
return 0;
}
static const struct hid_device_id ez_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
{ }
};
MODULE_DEVICE_TABLE(hid, ez_devices);
static struct hid_driver ez_driver = {
.name = "ezkey",
.id_table = ez_devices,
.input_mapping = ez_input_mapping,
.event = ez_event,
};
module_hid_driver(ez_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-ezkey.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for zydacron remote control
*
* Copyright (c) 2010 Don Prince <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
struct zc_device {
struct input_dev *input_ep81;
unsigned short last_key[4];
};
/*
* Zydacron remote control has an invalid HID report descriptor,
* that needs fixing before we can parse it.
*/
static __u8 *zc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 253 &&
rdesc[0x96] == 0xbc && rdesc[0x97] == 0xff &&
rdesc[0xca] == 0xbc && rdesc[0xcb] == 0xff &&
rdesc[0xe1] == 0xbc && rdesc[0xe2] == 0xff) {
hid_info(hdev,
"fixing up zydacron remote control report descriptor\n");
rdesc[0x96] = rdesc[0xca] = rdesc[0xe1] = 0x0c;
rdesc[0x97] = rdesc[0xcb] = rdesc[0xe2] = 0x00;
}
return rdesc;
}
#define zc_map_key_clear(c) \
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
static int zc_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
int i;
struct zc_device *zc = hid_get_drvdata(hdev);
zc->input_ep81 = hi->input;
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
dbg_hid("zynacron input mapping event [0x%x]\n",
usage->hid & HID_USAGE);
switch (usage->hid & HID_USAGE) {
/* report 2 */
case 0x10:
zc_map_key_clear(KEY_MODE);
break;
case 0x30:
zc_map_key_clear(KEY_SCREEN);
break;
case 0x70:
zc_map_key_clear(KEY_INFO);
break;
/* report 3 */
case 0x04:
zc_map_key_clear(KEY_RADIO);
break;
/* report 4 */
case 0x0d:
zc_map_key_clear(KEY_PVR);
break;
case 0x25:
zc_map_key_clear(KEY_TV);
break;
case 0x47:
zc_map_key_clear(KEY_AUDIO);
break;
case 0x49:
zc_map_key_clear(KEY_AUX);
break;
case 0x4a:
zc_map_key_clear(KEY_VIDEO);
break;
case 0x48:
zc_map_key_clear(KEY_DVD);
break;
case 0x24:
zc_map_key_clear(KEY_MENU);
break;
case 0x32:
zc_map_key_clear(KEY_TEXT);
break;
default:
return 0;
}
for (i = 0; i < 4; i++)
zc->last_key[i] = 0;
return 1;
}
static int zc_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct zc_device *zc = hid_get_drvdata(hdev);
int ret = 0;
unsigned key;
unsigned short index;
if (report->id == data[0]) {
/* break keys */
for (index = 0; index < 4; index++) {
key = zc->last_key[index];
if (key) {
input_event(zc->input_ep81, EV_KEY, key, 0);
zc->last_key[index] = 0;
}
}
key = 0;
switch (report->id) {
case 0x02:
case 0x03:
switch (data[1]) {
case 0x10:
key = KEY_MODE;
index = 0;
break;
case 0x30:
key = KEY_SCREEN;
index = 1;
break;
case 0x70:
key = KEY_INFO;
index = 2;
break;
case 0x04:
key = KEY_RADIO;
index = 3;
break;
}
if (key) {
input_event(zc->input_ep81, EV_KEY, key, 1);
zc->last_key[index] = key;
}
ret = 1;
break;
}
}
return ret;
}
static int zc_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct zc_device *zc;
zc = devm_kzalloc(&hdev->dev, sizeof(*zc), GFP_KERNEL);
if (zc == NULL) {
hid_err(hdev, "can't alloc descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, zc);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static const struct hid_device_id zc_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
{ }
};
MODULE_DEVICE_TABLE(hid, zc_devices);
static struct hid_driver zc_driver = {
.name = "zydacron",
.id_table = zc_devices,
.report_fixup = zc_report_fixup,
.input_mapping = zc_input_mapping,
.raw_event = zc_raw_event,
.probe = zc_probe,
};
module_hid_driver(zc_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-zydacron.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Holtek gaming mice
* Copyright (c) 2013 Christian Ohm
* Heavily inspired by various other HID drivers that adjust the report
* descriptor.
*/
/*
*/
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
/*
* The report descriptor of some Holtek based gaming mice specifies an
* excessively large number of consumer usages (2^15), which is more than
* HID_MAX_USAGES. This prevents proper parsing of the report descriptor.
*
* This driver fixes the report descriptor for:
* - USB ID 04d9:a067, sold as Sharkoon Drakonia and Perixx MX-2000
* - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200
* and Zalman ZM-GM1
* - USB ID 04d9:a081, sold as SHARKOON DarkGlider Gaming mouse
* - USB ID 04d9:a072, sold as LEETGION Hellion Gaming Mouse
* - USB ID 04d9:a0c2, sold as ETEKCITY Scroll T-140 Gaming Mouse
*/
static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
/* Change usage maximum and logical maximum from 0x7fff to
* 0x2fff, so they don't exceed HID_MAX_USAGES */
switch (hdev->product) {
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067:
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072:
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2:
if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f
&& rdesc[120] == 0xff && rdesc[121] == 0x7f) {
hid_info(hdev, "Fixing up report descriptor\n");
rdesc[116] = rdesc[121] = 0x2f;
}
break;
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A:
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070:
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081:
if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f
&& rdesc[111] == 0xff && rdesc[112] == 0x7f) {
hid_info(hdev, "Fixing up report descriptor\n");
rdesc[107] = rdesc[112] = 0x2f;
}
break;
}
}
return rdesc;
}
static int holtek_mouse_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid parse failed: %d\n", ret);
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed: %d\n", ret);
return ret;
}
return 0;
}
static const struct hid_device_id holtek_mouse_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
{ }
};
MODULE_DEVICE_TABLE(hid, holtek_mouse_devices);
static struct hid_driver holtek_mouse_driver = {
.name = "holtek_mouse",
.id_table = holtek_mouse_devices,
.report_fixup = holtek_mouse_report_fixup,
.probe = holtek_mouse_probe,
};
module_hid_driver(holtek_mouse_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-holtek-mouse.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some a4tech "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "hid-ids.h"
#define A4_2WHEEL_MOUSE_HACK_7 0x01
#define A4_2WHEEL_MOUSE_HACK_B8 0x02
#define A4_WHEEL_ORIENTATION (HID_UP_GENDESK | 0x000000b8)
struct a4tech_sc {
unsigned long quirks;
unsigned int hw_wheel;
__s32 delayed_value;
};
static int a4_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
if (a4->quirks & A4_2WHEEL_MOUSE_HACK_B8 &&
usage->hid == A4_WHEEL_ORIENTATION) {
/*
* We do not want to have this usage mapped to anything as it's
* nonstandard and doesn't really behave like an HID report.
* It's only selecting the orientation (vertical/horizontal) of
* the previous mouse wheel report. The input_events will be
* generated once both reports are recorded in a4_event().
*/
return -1;
}
return 0;
}
static int a4_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
set_bit(REL_HWHEEL, *bit);
set_bit(REL_HWHEEL_HI_RES, *bit);
}
if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007)
return -1;
return 0;
}
static int a4_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct a4tech_sc *a4 = hid_get_drvdata(hdev);
struct input_dev *input;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
return 0;
input = field->hidinput->input;
if (a4->quirks & A4_2WHEEL_MOUSE_HACK_B8) {
if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
a4->delayed_value = value;
return 1;
}
if (usage->hid == A4_WHEEL_ORIENTATION) {
input_event(input, EV_REL, value ? REL_HWHEEL :
REL_WHEEL, a4->delayed_value);
input_event(input, EV_REL, value ? REL_HWHEEL_HI_RES :
REL_WHEEL_HI_RES, a4->delayed_value * 120);
return 1;
}
}
if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007) {
a4->hw_wheel = !!value;
return 1;
}
if (usage->code == REL_WHEEL_HI_RES && a4->hw_wheel) {
input_event(input, usage->type, REL_HWHEEL, value);
input_event(input, usage->type, REL_HWHEEL_HI_RES, value * 120);
return 1;
}
return 0;
}
static int a4_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct a4tech_sc *a4;
int ret;
a4 = devm_kzalloc(&hdev->dev, sizeof(*a4), GFP_KERNEL);
if (a4 == NULL) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
a4->quirks = id->driver_data;
hid_set_drvdata(hdev, a4);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static const struct hid_device_id a4_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU),
.driver_data = A4_2WHEEL_MOUSE_HACK_7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D),
.driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649),
.driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_NB_95),
.driver_data = A4_2WHEEL_MOUSE_HACK_B8 },
{ }
};
MODULE_DEVICE_TABLE(hid, a4_devices);
static struct hid_driver a4_driver = {
.name = "a4tech",
.id_table = a4_devices,
.input_mapping = a4_input_mapping,
.input_mapped = a4_input_mapped,
.event = a4_event,
.probe = a4_probe,
};
module_hid_driver(a4_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-a4tech.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Ryos driver for Linux
*
* Copyright (c) 2013 Stefan Achatz <[email protected]>
*/
/*
*/
#include <linux/types.h>
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
enum {
RYOS_REPORT_NUMBER_SPECIAL = 3,
RYOS_USB_INTERFACE_PROTOCOL = 0,
};
struct ryos_report_special {
uint8_t number; /* RYOS_REPORT_NUMBER_SPECIAL */
uint8_t data[4];
} __packed;
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x05, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_primary, 0x06, 0x7d);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_function, 0x07, 0x5f);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_macro, 0x08, 0x23);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_thumbster, 0x09, 0x17);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_extra, 0x0a, 0x08);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_easyzone, 0x0b, 0x126);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(key_mask, 0x0c, 0x06);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(light, 0x0d, 0x10);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x0e, 0x7d2);
ROCCAT_COMMON2_BIN_ATTRIBUTE_R(info, 0x0f, 0x08);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(reset, 0x11, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(light_control, 0x13, 0x08);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x16, 0x10);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(stored_lights, 0x17, 0x0566);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(custom_lights, 0x18, 0x14);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(light_macro, 0x19, 0x07d2);
static struct bin_attribute *ryos_bin_attrs[] = {
&bin_attr_control,
&bin_attr_profile,
&bin_attr_keys_primary,
&bin_attr_keys_function,
&bin_attr_keys_macro,
&bin_attr_keys_thumbster,
&bin_attr_keys_extra,
&bin_attr_keys_easyzone,
&bin_attr_key_mask,
&bin_attr_light,
&bin_attr_macro,
&bin_attr_info,
&bin_attr_reset,
&bin_attr_light_control,
&bin_attr_talk,
&bin_attr_stored_lights,
&bin_attr_custom_lights,
&bin_attr_light_macro,
NULL,
};
static const struct attribute_group ryos_group = {
.bin_attrs = ryos_bin_attrs,
};
static const struct attribute_group *ryos_groups[] = {
&ryos_group,
NULL,
};
static const struct class ryos_class = {
.name = "ryos",
.dev_groups = ryos_groups,
};
static int ryos_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct roccat_common2_device *ryos;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= RYOS_USB_INTERFACE_PROTOCOL) {
hid_set_drvdata(hdev, NULL);
return 0;
}
ryos = kzalloc(sizeof(*ryos), GFP_KERNEL);
if (!ryos) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, ryos);
retval = roccat_common2_device_init_struct(usb_dev, ryos);
if (retval) {
hid_err(hdev, "couldn't init Ryos device\n");
goto exit_free;
}
retval = roccat_connect(&ryos_class, hdev,
sizeof(struct ryos_report_special));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
ryos->chrdev_minor = retval;
ryos->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(ryos);
return retval;
}
static void ryos_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *ryos;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= RYOS_USB_INTERFACE_PROTOCOL)
return;
ryos = hid_get_drvdata(hdev);
if (ryos->roccat_claimed)
roccat_disconnect(ryos->chrdev_minor);
kfree(ryos);
}
static int ryos_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = ryos_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void ryos_remove(struct hid_device *hdev)
{
ryos_remove_specials(hdev);
hid_hw_stop(hdev);
}
static int ryos_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *ryos = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= RYOS_USB_INTERFACE_PROTOCOL)
return 0;
if (data[0] != RYOS_REPORT_NUMBER_SPECIAL)
return 0;
if (ryos != NULL && ryos->roccat_claimed)
roccat_report_event(ryos->chrdev_minor, data);
return 0;
}
static const struct hid_device_id ryos_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
{ }
};
MODULE_DEVICE_TABLE(hid, ryos_devices);
static struct hid_driver ryos_driver = {
.name = "ryos",
.id_table = ryos_devices,
.probe = ryos_probe,
.remove = ryos_remove,
.raw_event = ryos_raw_event
};
static int __init ryos_init(void)
{
int retval;
retval = class_register(&ryos_class);
if (retval)
return retval;
retval = hid_register_driver(&ryos_driver);
if (retval)
class_unregister(&ryos_class);
return retval;
}
static void __exit ryos_exit(void)
{
hid_unregister_driver(&ryos_driver);
class_unregister(&ryos_class);
}
module_init(ryos_init);
module_exit(ryos_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Ryos MK/Glow/Pro driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-ryos.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Holtek On Line Grip based gamepads
*
* These include at least a Brazilian "Clone Joypad Super Power Fire"
* which uses vendor ID 0x1241 and identifies as "HOLTEK On Line Grip".
*
* Copyright (c) 2011 Anssi Hannula <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "hid-ids.h"
#ifdef CONFIG_HOLTEK_FF
/*
* These commands and parameters are currently known:
*
* byte 0: command id:
* 01 set effect parameters
* 02 play specified effect
* 03 stop specified effect
* 04 stop all effects
* 06 stop all effects
* (the difference between 04 and 06 isn't known; win driver
* sends 06,04 on application init, and 06 otherwise)
*
* Commands 01 and 02 need to be sent as pairs, i.e. you need to send 01
* before each 02.
*
* The rest of the bytes are parameters. Command 01 takes all of them, and
* commands 02,03 take only the effect id.
*
* byte 1:
* bits 0-3: effect id:
* 1: very strong rumble
* 2: periodic rumble, short intervals
* 3: very strong rumble
* 4: periodic rumble, long intervals
* 5: weak periodic rumble, long intervals
* 6: weak periodic rumble, short intervals
* 7: periodic rumble, short intervals
* 8: strong periodic rumble, short intervals
* 9: very strong rumble
* a: causes an error
* b: very strong periodic rumble, very short intervals
* c-f: nothing
* bit 6: right (weak) motor enabled
* bit 7: left (strong) motor enabled
*
* bytes 2-3: time in milliseconds, big-endian
* bytes 5-6: unknown (win driver seems to use at least 10e0 with effect 1
* and 0014 with effect 6)
* byte 7:
* bits 0-3: effect magnitude
*/
#define HOLTEKFF_MSG_LENGTH 7
static const u8 start_effect_1[] = { 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 stop_all4[] = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 stop_all6[] = { 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
struct holtekff_device {
struct hid_field *field;
};
static void holtekff_send(struct holtekff_device *holtekff,
struct hid_device *hid,
const u8 data[HOLTEKFF_MSG_LENGTH])
{
int i;
for (i = 0; i < HOLTEKFF_MSG_LENGTH; i++) {
holtekff->field->value[i] = data[i];
}
dbg_hid("sending %7ph\n", data);
hid_hw_request(hid, holtekff->field->report, HID_REQ_SET_REPORT);
}
static int holtekff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct holtekff_device *holtekff = data;
int left, right;
/* effect type 1, length 65535 msec */
u8 buf[HOLTEKFF_MSG_LENGTH] =
{ 0x01, 0x01, 0xff, 0xff, 0x10, 0xe0, 0x00 };
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x\n", left, right);
if (!left && !right) {
holtekff_send(holtekff, hid, stop_all6);
return 0;
}
if (left)
buf[1] |= 0x80;
if (right)
buf[1] |= 0x40;
/* The device takes a single magnitude, so we just sum them up. */
buf[6] = min(0xf, (left >> 12) + (right >> 12));
holtekff_send(holtekff, hid, buf);
holtekff_send(holtekff, hid, start_effect_1);
return 0;
}
static int holtekff_init(struct hid_device *hid)
{
struct holtekff_device *holtekff;
struct hid_report *report;
struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output report found\n");
return -ENODEV;
}
report = list_entry(report_list->next, struct hid_report, list);
if (report->maxfield < 1 || report->field[0]->report_count != 7) {
hid_err(hid, "unexpected output report layout\n");
return -ENODEV;
}
holtekff = kzalloc(sizeof(*holtekff), GFP_KERNEL);
if (!holtekff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
holtekff->field = report->field[0];
/* initialize the same way as win driver does */
holtekff_send(holtekff, hid, stop_all4);
holtekff_send(holtekff, hid, stop_all6);
error = input_ff_create_memless(dev, holtekff, holtekff_play);
if (error) {
kfree(holtekff);
return error;
}
hid_info(hid, "Force feedback for Holtek On Line Grip based devices by Anssi Hannula <[email protected]>\n");
return 0;
}
#else
static inline int holtekff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int holtek_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
holtekff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id holtek_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
{ }
};
MODULE_DEVICE_TABLE(hid, holtek_devices);
static struct hid_driver holtek_driver = {
.name = "holtek",
.id_table = holtek_devices,
.probe = holtek_probe,
};
module_hid_driver(holtek_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Anssi Hannula <[email protected]>");
MODULE_DESCRIPTION("Force feedback support for Holtek On Line Grip based devices");
| linux-master | drivers/hid/hid-holtekff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Device Modules for Nintendo Wii / Wii U HID Driver
* Copyright (c) 2011-2013 David Herrmann <[email protected]>
*/
/*
*/
/*
* Wiimote Modules
* Nintendo devices provide different peripherals and many new devices lack
* initial features like the IR camera. Therefore, each peripheral device is
* implemented as an independent module and we probe on each device only the
* modules for the hardware that really is available.
*
* Module registration is sequential. Unregistration is done in reverse order.
* After device detection, the needed modules are loaded. Users can trigger
* re-detection which causes all modules to be unloaded and then reload the
* modules for the new detected device.
*
* wdata->input is a shared input device. It is always initialized prior to
* module registration. If at least one registered module is marked as
* WIIMOD_FLAG_INPUT, then the input device will get registered after all
* modules were registered.
* Please note that it is unregistered _before_ the "remove" callbacks are
* called. This guarantees that no input interaction is done, anymore. However,
* the wiimote core keeps a reference to the input device so it is freed only
* after all modules were removed. It is safe to send events to unregistered
* input devices.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include "hid-wiimote.h"
/*
* Keys
* The initial Wii Remote provided a bunch of buttons that are reported as
* part of the core protocol. Many later devices dropped these and report
* invalid data in the core button reports. Load this only on devices which
* correctly send button reports.
* It uses the shared input device.
*/
static const __u16 wiimod_keys_map[] = {
KEY_LEFT, /* WIIPROTO_KEY_LEFT */
KEY_RIGHT, /* WIIPROTO_KEY_RIGHT */
KEY_UP, /* WIIPROTO_KEY_UP */
KEY_DOWN, /* WIIPROTO_KEY_DOWN */
KEY_NEXT, /* WIIPROTO_KEY_PLUS */
KEY_PREVIOUS, /* WIIPROTO_KEY_MINUS */
BTN_1, /* WIIPROTO_KEY_ONE */
BTN_2, /* WIIPROTO_KEY_TWO */
BTN_A, /* WIIPROTO_KEY_A */
BTN_B, /* WIIPROTO_KEY_B */
BTN_MODE, /* WIIPROTO_KEY_HOME */
};
static void wiimod_keys_in_keys(struct wiimote_data *wdata, const __u8 *keys)
{
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_LEFT],
!!(keys[0] & 0x01));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_RIGHT],
!!(keys[0] & 0x02));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_DOWN],
!!(keys[0] & 0x04));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_UP],
!!(keys[0] & 0x08));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_PLUS],
!!(keys[0] & 0x10));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_TWO],
!!(keys[1] & 0x01));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_ONE],
!!(keys[1] & 0x02));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_B],
!!(keys[1] & 0x04));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_A],
!!(keys[1] & 0x08));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_MINUS],
!!(keys[1] & 0x10));
input_report_key(wdata->input, wiimod_keys_map[WIIPROTO_KEY_HOME],
!!(keys[1] & 0x80));
input_sync(wdata->input);
}
static int wiimod_keys_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned int i;
set_bit(EV_KEY, wdata->input->evbit);
for (i = 0; i < WIIPROTO_KEY_COUNT; ++i)
set_bit(wiimod_keys_map[i], wdata->input->keybit);
return 0;
}
static const struct wiimod_ops wiimod_keys = {
.flags = WIIMOD_FLAG_INPUT,
.arg = 0,
.probe = wiimod_keys_probe,
.remove = NULL,
.in_keys = wiimod_keys_in_keys,
};
/*
* Rumble
* Nearly all devices provide a rumble feature. A small motor for
* force-feedback effects. We provide an FF_RUMBLE memless ff device on the
* shared input device if this module is loaded.
* The rumble motor is controlled via a flag on almost every output report so
* the wiimote core handles the rumble flag. But if a device doesn't provide
* the rumble motor, this flag shouldn't be set.
*/
/* used by wiimod_rumble and wiipro_rumble */
static void wiimod_rumble_worker(struct work_struct *work)
{
struct wiimote_data *wdata = container_of(work, struct wiimote_data,
rumble_worker);
spin_lock_irq(&wdata->state.lock);
wiiproto_req_rumble(wdata, wdata->state.cache_rumble);
spin_unlock_irq(&wdata->state.lock);
}
static int wiimod_rumble_play(struct input_dev *dev, void *data,
struct ff_effect *eff)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
/*
* The wiimote supports only a single rumble motor so if any magnitude
* is set to non-zero then we start the rumble motor. If both are set to
* zero, we stop the rumble motor.
*/
if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
value = 1;
else
value = 0;
/* Locking state.lock here might deadlock with input_event() calls.
* schedule_work acts as barrier. Merging multiple changes is fine. */
wdata->state.cache_rumble = value;
schedule_work(&wdata->rumble_worker);
return 0;
}
static int wiimod_rumble_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
set_bit(FF_RUMBLE, wdata->input->ffbit);
if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
return -ENOMEM;
return 0;
}
static void wiimod_rumble_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
cancel_work_sync(&wdata->rumble_worker);
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_rumble = {
.flags = WIIMOD_FLAG_INPUT,
.arg = 0,
.probe = wiimod_rumble_probe,
.remove = wiimod_rumble_remove,
};
/*
* Battery
* 1 byte of battery capacity information is sent along every protocol status
* report. The wiimote core caches it but we try to update it on every
* user-space request.
* This is supported by nearly every device so it's almost always enabled.
*/
static enum power_supply_property wiimod_battery_props[] = {
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
};
static int wiimod_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct wiimote_data *wdata = power_supply_get_drvdata(psy);
int ret = 0, state;
unsigned long flags;
if (psp == POWER_SUPPLY_PROP_SCOPE) {
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
return 0;
} else if (psp != POWER_SUPPLY_PROP_CAPACITY) {
return -EINVAL;
}
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
wiiproto_req_status(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
wiimote_cmd_wait(wdata);
wiimote_cmd_release(wdata);
spin_lock_irqsave(&wdata->state.lock, flags);
state = wdata->state.cmd_battery;
spin_unlock_irqrestore(&wdata->state.lock, flags);
val->intval = state * 100 / 255;
return ret;
}
static int wiimod_battery_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
struct power_supply_config psy_cfg = { .drv_data = wdata, };
int ret;
wdata->battery_desc.properties = wiimod_battery_props;
wdata->battery_desc.num_properties = ARRAY_SIZE(wiimod_battery_props);
wdata->battery_desc.get_property = wiimod_battery_get_property;
wdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
wdata->battery_desc.use_for_apm = 0;
wdata->battery_desc.name = kasprintf(GFP_KERNEL, "wiimote_battery_%s",
wdata->hdev->uniq);
if (!wdata->battery_desc.name)
return -ENOMEM;
wdata->battery = power_supply_register(&wdata->hdev->dev,
&wdata->battery_desc,
&psy_cfg);
if (IS_ERR(wdata->battery)) {
hid_err(wdata->hdev, "cannot register battery device\n");
ret = PTR_ERR(wdata->battery);
goto err_free;
}
power_supply_powers(wdata->battery, &wdata->hdev->dev);
return 0;
err_free:
kfree(wdata->battery_desc.name);
wdata->battery_desc.name = NULL;
return ret;
}
static void wiimod_battery_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->battery_desc.name)
return;
power_supply_unregister(wdata->battery);
kfree(wdata->battery_desc.name);
wdata->battery_desc.name = NULL;
}
static const struct wiimod_ops wiimod_battery = {
.flags = 0,
.arg = 0,
.probe = wiimod_battery_probe,
.remove = wiimod_battery_remove,
};
/*
* LED
* 0 to 4 player LEDs are supported by devices. The "arg" field of the
* wiimod_ops structure specifies which LED this module controls. This allows
* to register a limited number of LEDs.
* State is managed by wiimote core.
*/
static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
{
struct device *dev = led_dev->dev->parent;
struct wiimote_data *wdata = dev_to_wii(dev);
int i;
unsigned long flags;
bool value = false;
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev) {
spin_lock_irqsave(&wdata->state.lock, flags);
value = wdata->state.flags & WIIPROTO_FLAG_LED(i + 1);
spin_unlock_irqrestore(&wdata->state.lock, flags);
break;
}
}
return value ? LED_FULL : LED_OFF;
}
static void wiimod_led_set(struct led_classdev *led_dev,
enum led_brightness value)
{
struct device *dev = led_dev->dev->parent;
struct wiimote_data *wdata = dev_to_wii(dev);
int i;
unsigned long flags;
__u8 state, flag;
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev) {
flag = WIIPROTO_FLAG_LED(i + 1);
spin_lock_irqsave(&wdata->state.lock, flags);
state = wdata->state.flags;
if (value == LED_OFF)
wiiproto_req_leds(wdata, state & ~flag);
else
wiiproto_req_leds(wdata, state | flag);
spin_unlock_irqrestore(&wdata->state.lock, flags);
break;
}
}
}
static int wiimod_led_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
struct device *dev = &wdata->hdev->dev;
size_t namesz = strlen(dev_name(dev)) + 9;
struct led_classdev *led;
unsigned long flags;
char *name;
int ret;
led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
if (!led)
return -ENOMEM;
name = (void*)&led[1];
snprintf(name, namesz, "%s:blue:p%lu", dev_name(dev), ops->arg);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = wiimod_led_get;
led->brightness_set = wiimod_led_set;
wdata->leds[ops->arg] = led;
ret = led_classdev_register(dev, led);
if (ret)
goto err_free;
/* enable LED1 to stop initial LED-blinking */
if (ops->arg == 0) {
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_leds(wdata, WIIPROTO_FLAG_LED1);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
return 0;
err_free:
wdata->leds[ops->arg] = NULL;
kfree(led);
return ret;
}
static void wiimod_led_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->leds[ops->arg])
return;
led_classdev_unregister(wdata->leds[ops->arg]);
kfree(wdata->leds[ops->arg]);
wdata->leds[ops->arg] = NULL;
}
static const struct wiimod_ops wiimod_leds[4] = {
{
.flags = 0,
.arg = 0,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 1,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 2,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
{
.flags = 0,
.arg = 3,
.probe = wiimod_led_probe,
.remove = wiimod_led_remove,
},
};
/*
* Accelerometer
* 3 axis accelerometer data is part of nearly all DRMs. If not supported by a
* device, it's mostly cleared to 0. This module parses this data and provides
* it via a separate input device.
*/
static void wiimod_accel_in_accel(struct wiimote_data *wdata,
const __u8 *accel)
{
__u16 x, y, z;
if (!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
return;
/*
* payload is: BB BB XX YY ZZ
* Accelerometer data is encoded into 3 10bit values. XX, YY and ZZ
* contain the upper 8 bits of each value. The lower 2 bits are
* contained in the buttons data BB BB.
* Bits 6 and 7 of the first buttons byte BB is the lower 2 bits of the
* X accel value. Bit 5 of the second buttons byte is the 2nd bit of Y
* accel value and bit 6 is the second bit of the Z value.
* The first bit of Y and Z values is not available and always set to 0.
* 0x200 is returned on no movement.
*/
x = accel[2] << 2;
y = accel[3] << 2;
z = accel[4] << 2;
x |= (accel[0] >> 5) & 0x3;
y |= (accel[1] >> 4) & 0x2;
z |= (accel[1] >> 5) & 0x2;
input_report_abs(wdata->accel, ABS_RX, x - 0x200);
input_report_abs(wdata->accel, ABS_RY, y - 0x200);
input_report_abs(wdata->accel, ABS_RZ, z - 0x200);
input_sync(wdata->accel);
}
static int wiimod_accel_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_accel(wdata, true);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_accel_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_accel(wdata, false);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_accel_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->accel = input_allocate_device();
if (!wdata->accel)
return -ENOMEM;
input_set_drvdata(wdata->accel, wdata);
wdata->accel->open = wiimod_accel_open;
wdata->accel->close = wiimod_accel_close;
wdata->accel->dev.parent = &wdata->hdev->dev;
wdata->accel->id.bustype = wdata->hdev->bus;
wdata->accel->id.vendor = wdata->hdev->vendor;
wdata->accel->id.product = wdata->hdev->product;
wdata->accel->id.version = wdata->hdev->version;
wdata->accel->name = WIIMOTE_NAME " Accelerometer";
set_bit(EV_ABS, wdata->accel->evbit);
set_bit(ABS_RX, wdata->accel->absbit);
set_bit(ABS_RY, wdata->accel->absbit);
set_bit(ABS_RZ, wdata->accel->absbit);
input_set_abs_params(wdata->accel, ABS_RX, -500, 500, 2, 4);
input_set_abs_params(wdata->accel, ABS_RY, -500, 500, 2, 4);
input_set_abs_params(wdata->accel, ABS_RZ, -500, 500, 2, 4);
ret = input_register_device(wdata->accel);
if (ret) {
hid_err(wdata->hdev, "cannot register input device\n");
goto err_free;
}
return 0;
err_free:
input_free_device(wdata->accel);
wdata->accel = NULL;
return ret;
}
static void wiimod_accel_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->accel)
return;
input_unregister_device(wdata->accel);
wdata->accel = NULL;
}
static const struct wiimod_ops wiimod_accel = {
.flags = 0,
.arg = 0,
.probe = wiimod_accel_probe,
.remove = wiimod_accel_remove,
.in_accel = wiimod_accel_in_accel,
};
/*
* IR Cam
* Up to 4 IR sources can be tracked by a normal Wii Remote. The IR cam needs
* to be initialized with a fairly complex procedure and consumes a lot of
* power. Therefore, as long as no application uses the IR input device, it is
* kept offline.
* Nearly no other device than the normal Wii Remotes supports the IR cam so
* you can disable this module for these devices.
*/
static void wiimod_ir_in_ir(struct wiimote_data *wdata, const __u8 *ir,
bool packed, unsigned int id)
{
__u16 x, y;
__u8 xid, yid;
bool sync = false;
if (!(wdata->state.flags & WIIPROTO_FLAGS_IR))
return;
switch (id) {
case 0:
xid = ABS_HAT0X;
yid = ABS_HAT0Y;
break;
case 1:
xid = ABS_HAT1X;
yid = ABS_HAT1Y;
break;
case 2:
xid = ABS_HAT2X;
yid = ABS_HAT2Y;
break;
case 3:
xid = ABS_HAT3X;
yid = ABS_HAT3Y;
sync = true;
break;
default:
return;
}
/*
* Basic IR data is encoded into 3 bytes. The first two bytes are the
* lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
* of both.
* If data is packed, then the 3rd byte is put first and slightly
* reordered. This allows to interleave packed and non-packed data to
* have two IR sets in 5 bytes instead of 6.
* The resulting 10bit X/Y values are passed to the ABS_HAT? input dev.
*/
if (packed) {
x = ir[1] | ((ir[0] & 0x03) << 8);
y = ir[2] | ((ir[0] & 0x0c) << 6);
} else {
x = ir[0] | ((ir[2] & 0x30) << 4);
y = ir[1] | ((ir[2] & 0xc0) << 2);
}
input_report_abs(wdata->ir, xid, x);
input_report_abs(wdata->ir, yid, y);
if (sync)
input_sync(wdata->ir);
}
static int wiimod_ir_change(struct wiimote_data *wdata, __u16 mode)
{
int ret;
unsigned long flags;
__u8 format = 0;
static const __u8 data_enable[] = { 0x01 };
static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01,
0x00, 0xaa, 0x00, 0x64 };
static const __u8 data_sens2[] = { 0x63, 0x03 };
static const __u8 data_fin[] = { 0x08 };
spin_lock_irqsave(&wdata->state.lock, flags);
if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) {
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
if (mode == 0) {
wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
wiiproto_req_ir1(wdata, 0);
wiiproto_req_ir2(wdata, 0);
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
/* send PIXEL CLOCK ENABLE cmd first */
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0);
wiiproto_req_ir1(wdata, 0x06);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (ret)
goto unlock;
if (wdata->state.cmd_err) {
ret = -EIO;
goto unlock;
}
/* enable IR LOGIC */
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0);
wiiproto_req_ir2(wdata, 0x06);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (ret)
goto unlock;
if (wdata->state.cmd_err) {
ret = -EIO;
goto unlock;
}
/* enable IR cam but do not make it send data, yet */
ret = wiimote_cmd_write(wdata, 0xb00030, data_enable,
sizeof(data_enable));
if (ret)
goto unlock;
/* write first sensitivity block */
ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1,
sizeof(data_sens1));
if (ret)
goto unlock;
/* write second sensitivity block */
ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2,
sizeof(data_sens2));
if (ret)
goto unlock;
/* put IR cam into desired state */
switch (mode) {
case WIIPROTO_FLAG_IR_FULL:
format = 5;
break;
case WIIPROTO_FLAG_IR_EXT:
format = 3;
break;
case WIIPROTO_FLAG_IR_BASIC:
format = 1;
break;
}
ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format));
if (ret)
goto unlock;
/* make IR cam send data */
ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin));
if (ret)
goto unlock;
/* request new DRM mode compatible to IR mode */
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAGS_IR;
wdata->state.flags |= mode & WIIPROTO_FLAGS_IR;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
unlock:
wiimote_cmd_release(wdata);
return ret;
}
static int wiimod_ir_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
return wiimod_ir_change(wdata, WIIPROTO_FLAG_IR_BASIC);
}
static void wiimod_ir_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
wiimod_ir_change(wdata, 0);
}
static int wiimod_ir_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->ir = input_allocate_device();
if (!wdata->ir)
return -ENOMEM;
input_set_drvdata(wdata->ir, wdata);
wdata->ir->open = wiimod_ir_open;
wdata->ir->close = wiimod_ir_close;
wdata->ir->dev.parent = &wdata->hdev->dev;
wdata->ir->id.bustype = wdata->hdev->bus;
wdata->ir->id.vendor = wdata->hdev->vendor;
wdata->ir->id.product = wdata->hdev->product;
wdata->ir->id.version = wdata->hdev->version;
wdata->ir->name = WIIMOTE_NAME " IR";
set_bit(EV_ABS, wdata->ir->evbit);
set_bit(ABS_HAT0X, wdata->ir->absbit);
set_bit(ABS_HAT0Y, wdata->ir->absbit);
set_bit(ABS_HAT1X, wdata->ir->absbit);
set_bit(ABS_HAT1Y, wdata->ir->absbit);
set_bit(ABS_HAT2X, wdata->ir->absbit);
set_bit(ABS_HAT2Y, wdata->ir->absbit);
set_bit(ABS_HAT3X, wdata->ir->absbit);
set_bit(ABS_HAT3Y, wdata->ir->absbit);
input_set_abs_params(wdata->ir, ABS_HAT0X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT0Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT1X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT1Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT2X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT2Y, 0, 767, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT3X, 0, 1023, 2, 4);
input_set_abs_params(wdata->ir, ABS_HAT3Y, 0, 767, 2, 4);
ret = input_register_device(wdata->ir);
if (ret) {
hid_err(wdata->hdev, "cannot register input device\n");
goto err_free;
}
return 0;
err_free:
input_free_device(wdata->ir);
wdata->ir = NULL;
return ret;
}
static void wiimod_ir_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->ir)
return;
input_unregister_device(wdata->ir);
wdata->ir = NULL;
}
static const struct wiimod_ops wiimod_ir = {
.flags = 0,
.arg = 0,
.probe = wiimod_ir_probe,
.remove = wiimod_ir_remove,
.in_ir = wiimod_ir_in_ir,
};
/*
* Nunchuk Extension
* The Nintendo Wii Nunchuk was the first official extension published by
* Nintendo. It provides two additional keys and a separate accelerometer. It
* can be hotplugged to standard Wii Remotes.
*/
enum wiimod_nunchuk_keys {
WIIMOD_NUNCHUK_KEY_C,
WIIMOD_NUNCHUK_KEY_Z,
WIIMOD_NUNCHUK_KEY_NUM,
};
static const __u16 wiimod_nunchuk_map[] = {
BTN_C, /* WIIMOD_NUNCHUK_KEY_C */
BTN_Z, /* WIIMOD_NUNCHUK_KEY_Z */
};
static void wiimod_nunchuk_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s16 x, y, z, bx, by;
/* Byte | 8 7 | 6 5 | 4 3 | 2 | 1 |
* -----+----------+---------+---------+----+-----+
* 1 | Button X <7:0> |
* 2 | Button Y <7:0> |
* -----+----------+---------+---------+----+-----+
* 3 | Speed X <9:2> |
* 4 | Speed Y <9:2> |
* 5 | Speed Z <9:2> |
* -----+----------+---------+---------+----+-----+
* 6 | Z <1:0> | Y <1:0> | X <1:0> | BC | BZ |
* -----+----------+---------+---------+----+-----+
* Button X/Y is the analog stick. Speed X, Y and Z are the
* accelerometer data in the same format as the wiimote's accelerometer.
* The 6th byte contains the LSBs of the accelerometer data.
* BC and BZ are the C and Z buttons: 0 means pressed
*
* If reported interleaved with motionp, then the layout changes. The
* 5th and 6th byte changes to:
* -----+-----------------------------------+-----+
* 5 | Speed Z <9:3> | EXT |
* -----+--------+-----+-----+----+----+----+-----+
* 6 |Z <2:1> |Y <1>|X <1>| BC | BZ | 0 | 0 |
* -----+--------+-----+-----+----+----+----+-----+
* All three accelerometer values lose their LSB. The other data is
* still available but slightly moved.
*
* Center data for button values is 128. Center value for accelerometer
* values it 512 / 0x200
*/
bx = ext[0];
by = ext[1];
bx -= 128;
by -= 128;
x = ext[2] << 2;
y = ext[3] << 2;
z = ext[4] << 2;
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
x |= (ext[5] >> 3) & 0x02;
y |= (ext[5] >> 4) & 0x02;
z &= ~0x4;
z |= (ext[5] >> 5) & 0x06;
} else {
x |= (ext[5] >> 2) & 0x03;
y |= (ext[5] >> 4) & 0x03;
z |= (ext[5] >> 6) & 0x03;
}
x -= 0x200;
y -= 0x200;
z -= 0x200;
input_report_abs(wdata->extension.input, ABS_HAT0X, bx);
input_report_abs(wdata->extension.input, ABS_HAT0Y, by);
input_report_abs(wdata->extension.input, ABS_RX, x);
input_report_abs(wdata->extension.input, ABS_RY, y);
input_report_abs(wdata->extension.input, ABS_RZ, z);
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
!(ext[5] & 0x04));
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
!(ext[5] & 0x08));
} else {
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_Z],
!(ext[5] & 0x01));
input_report_key(wdata->extension.input,
wiimod_nunchuk_map[WIIMOD_NUNCHUK_KEY_C],
!(ext[5] & 0x02));
}
input_sync(wdata->extension.input);
}
static int wiimod_nunchuk_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_nunchuk_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_nunchuk_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_nunchuk_open;
wdata->extension.input->close = wiimod_nunchuk_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Nunchuk";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_NUNCHUK_KEY_NUM; ++i)
set_bit(wiimod_nunchuk_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, -120, 120, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT0Y, -120, 120, 2, 4);
set_bit(ABS_RX, wdata->extension.input->absbit);
set_bit(ABS_RY, wdata->extension.input->absbit);
set_bit(ABS_RZ, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_RX, -500, 500, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_RY, -500, 500, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_RZ, -500, 500, 2, 4);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_nunchuk_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_nunchuk = {
.flags = 0,
.arg = 0,
.probe = wiimod_nunchuk_probe,
.remove = wiimod_nunchuk_remove,
.in_ext = wiimod_nunchuk_in_ext,
};
/*
* Classic Controller
* Another official extension from Nintendo. It provides a classic
* gamecube-like controller that can be hotplugged on the Wii Remote.
* It has several hardware buttons and switches that are all reported via
* a normal extension device.
*/
enum wiimod_classic_keys {
WIIMOD_CLASSIC_KEY_A,
WIIMOD_CLASSIC_KEY_B,
WIIMOD_CLASSIC_KEY_X,
WIIMOD_CLASSIC_KEY_Y,
WIIMOD_CLASSIC_KEY_ZL,
WIIMOD_CLASSIC_KEY_ZR,
WIIMOD_CLASSIC_KEY_PLUS,
WIIMOD_CLASSIC_KEY_MINUS,
WIIMOD_CLASSIC_KEY_HOME,
WIIMOD_CLASSIC_KEY_LEFT,
WIIMOD_CLASSIC_KEY_RIGHT,
WIIMOD_CLASSIC_KEY_UP,
WIIMOD_CLASSIC_KEY_DOWN,
WIIMOD_CLASSIC_KEY_LT,
WIIMOD_CLASSIC_KEY_RT,
WIIMOD_CLASSIC_KEY_NUM,
};
static const __u16 wiimod_classic_map[] = {
BTN_A, /* WIIMOD_CLASSIC_KEY_A */
BTN_B, /* WIIMOD_CLASSIC_KEY_B */
BTN_X, /* WIIMOD_CLASSIC_KEY_X */
BTN_Y, /* WIIMOD_CLASSIC_KEY_Y */
BTN_TL2, /* WIIMOD_CLASSIC_KEY_ZL */
BTN_TR2, /* WIIMOD_CLASSIC_KEY_ZR */
KEY_NEXT, /* WIIMOD_CLASSIC_KEY_PLUS */
KEY_PREVIOUS, /* WIIMOD_CLASSIC_KEY_MINUS */
BTN_MODE, /* WIIMOD_CLASSIC_KEY_HOME */
KEY_LEFT, /* WIIMOD_CLASSIC_KEY_LEFT */
KEY_RIGHT, /* WIIMOD_CLASSIC_KEY_RIGHT */
KEY_UP, /* WIIMOD_CLASSIC_KEY_UP */
KEY_DOWN, /* WIIMOD_CLASSIC_KEY_DOWN */
BTN_TL, /* WIIMOD_CLASSIC_KEY_LT */
BTN_TR, /* WIIMOD_CLASSIC_KEY_RT */
};
static void wiimod_classic_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s8 rx, ry, lx, ly, lt, rt;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | RX <5:4> | LX <5:0> |
* 2 | RX <3:2> | LY <5:0> |
* -----+-----+-----+-----+-----------------------------+
* 3 |RX<1>| LT <5:4> | RY <5:1> |
* -----+-----+-----------+-----------------------------+
* 4 | LT <3:1> | RT <5:1> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* All buttons are 0 if pressed
* RX and RY are right analog stick
* LX and LY are left analog stick
* LT is left trigger, RT is right trigger
* BLT is 0 if left trigger is fully pressed
* BRT is 0 if right trigger is fully pressed
* BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
* BZL is left Z button and BZR is right Z button
* B-, BH, B+ are +, HOME and - buttons
* BB, BY, BA, BX are A, B, X, Y buttons
* LSB of RX, RY, LT, and RT are not transmitted and always 0.
*
* With motionp enabled it changes slightly to this:
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | RX <5:4> | LX <5:1> | BDU |
* 2 | RX <3:2> | LY <5:1> | BDL |
* -----+-----+-----+-----+-----------------------+-----+
* 3 |RX<1>| LT <5:4> | RY <5:1> |
* -----+-----+-----------+-----------------------------+
* 4 | LT <3:1> | RT <5:1> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | BDR | BDD | BLT | B- | BH | B+ | BRT | EXT |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BZL | BB | BY | BA | BX | BZR | 0 | 0 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
* is the same as before.
*/
static const s8 digital_to_analog[3] = {0x20, 0, -0x20};
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
if (wiimote_dpad_as_analog) {
lx = digital_to_analog[1 - !(ext[4] & 0x80)
+ !(ext[1] & 0x01)];
ly = digital_to_analog[1 - !(ext[4] & 0x40)
+ !(ext[0] & 0x01)];
} else {
lx = (ext[0] & 0x3e) - 0x20;
ly = (ext[1] & 0x3e) - 0x20;
}
} else {
if (wiimote_dpad_as_analog) {
lx = digital_to_analog[1 - !(ext[4] & 0x80)
+ !(ext[5] & 0x02)];
ly = digital_to_analog[1 - !(ext[4] & 0x40)
+ !(ext[5] & 0x01)];
} else {
lx = (ext[0] & 0x3f) - 0x20;
ly = (ext[1] & 0x3f) - 0x20;
}
}
rx = (ext[0] >> 3) & 0x18;
rx |= (ext[1] >> 5) & 0x06;
rx |= (ext[2] >> 7) & 0x01;
ry = ext[2] & 0x1f;
rt = ext[3] & 0x1f;
lt = (ext[2] >> 2) & 0x18;
lt |= (ext[3] >> 5) & 0x07;
rx <<= 1;
ry <<= 1;
rt <<= 1;
lt <<= 1;
input_report_abs(wdata->extension.input, ABS_HAT1X, lx);
input_report_abs(wdata->extension.input, ABS_HAT1Y, ly);
input_report_abs(wdata->extension.input, ABS_HAT2X, rx - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT2Y, ry - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT3X, rt);
input_report_abs(wdata->extension.input, ABS_HAT3Y, lt);
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LT],
!(ext[4] & 0x20));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_MINUS],
!(ext[4] & 0x10));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_HOME],
!(ext[4] & 0x08));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_PLUS],
!(ext[4] & 0x04));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RT],
!(ext[4] & 0x02));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZL],
!(ext[5] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_B],
!(ext[5] & 0x40));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_Y],
!(ext[5] & 0x20));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_A],
!(ext[5] & 0x10));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_X],
!(ext[5] & 0x08));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_ZR],
!(ext[5] & 0x04));
if (!wiimote_dpad_as_analog) {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_RIGHT],
!(ext[4] & 0x80));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_DOWN],
!(ext[4] & 0x40));
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
!(ext[1] & 0x01));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
!(ext[0] & 0x01));
} else {
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_LEFT],
!(ext[5] & 0x02));
input_report_key(wdata->extension.input,
wiimod_classic_map[WIIMOD_CLASSIC_KEY_UP],
!(ext[5] & 0x01));
}
}
input_sync(wdata->extension.input);
}
static int wiimod_classic_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_classic_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_classic_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_classic_open;
wdata->extension.input->close = wiimod_classic_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Classic Controller";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_CLASSIC_KEY_NUM; ++i)
set_bit(wiimod_classic_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
set_bit(ABS_HAT2X, wdata->extension.input->absbit);
set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
set_bit(ABS_HAT3X, wdata->extension.input->absbit);
set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT1Y, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT2X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT2Y, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT3X, -30, 30, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT3Y, -30, 30, 1, 1);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_classic_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_classic = {
.flags = 0,
.arg = 0,
.probe = wiimod_classic_probe,
.remove = wiimod_classic_remove,
.in_ext = wiimod_classic_in_ext,
};
/*
* Balance Board Extension
* The Nintendo Wii Balance Board provides four hardware weight sensor plus a
* single push button. No other peripherals are available. However, the
* balance-board data is sent via a standard Wii Remote extension. All other
* data for non-present hardware is zeroed out.
* Some 3rd party devices react allergic if we try to access normal Wii Remote
* hardware, so this extension module should be the only module that is loaded
* on balance boards.
* The balance board needs 8 bytes extension data instead of basic 6 bytes so
* it needs the WIIMOD_FLAG_EXT8 flag.
*/
static void wiimod_bboard_in_keys(struct wiimote_data *wdata, const __u8 *keys)
{
input_report_key(wdata->extension.input, BTN_A,
!!(keys[1] & 0x08));
input_sync(wdata->extension.input);
}
static void wiimod_bboard_in_ext(struct wiimote_data *wdata,
const __u8 *ext)
{
__s32 val[4], tmp, div;
unsigned int i;
struct wiimote_state *s = &wdata->state;
/*
* Balance board data layout:
*
* Byte | 8 7 6 5 4 3 2 1 |
* -----+--------------------------+
* 1 | Top Right <15:8> |
* 2 | Top Right <7:0> |
* -----+--------------------------+
* 3 | Bottom Right <15:8> |
* 4 | Bottom Right <7:0> |
* -----+--------------------------+
* 5 | Top Left <15:8> |
* 6 | Top Left <7:0> |
* -----+--------------------------+
* 7 | Bottom Left <15:8> |
* 8 | Bottom Left <7:0> |
* -----+--------------------------+
*
* These values represent the weight-measurements of the Wii-balance
* board with 16bit precision.
*
* The balance-board is never reported interleaved with motionp.
*/
val[0] = ext[0];
val[0] <<= 8;
val[0] |= ext[1];
val[1] = ext[2];
val[1] <<= 8;
val[1] |= ext[3];
val[2] = ext[4];
val[2] <<= 8;
val[2] |= ext[5];
val[3] = ext[6];
val[3] <<= 8;
val[3] |= ext[7];
/* apply calibration data */
for (i = 0; i < 4; i++) {
if (val[i] <= s->calib_bboard[i][0]) {
tmp = 0;
} else if (val[i] < s->calib_bboard[i][1]) {
tmp = val[i] - s->calib_bboard[i][0];
tmp *= 1700;
div = s->calib_bboard[i][1] - s->calib_bboard[i][0];
tmp /= div ? div : 1;
} else {
tmp = val[i] - s->calib_bboard[i][1];
tmp *= 1700;
div = s->calib_bboard[i][2] - s->calib_bboard[i][1];
tmp /= div ? div : 1;
tmp += 1700;
}
val[i] = tmp;
}
input_report_abs(wdata->extension.input, ABS_HAT0X, val[0]);
input_report_abs(wdata->extension.input, ABS_HAT0Y, val[1]);
input_report_abs(wdata->extension.input, ABS_HAT1X, val[2]);
input_report_abs(wdata->extension.input, ABS_HAT1Y, val[3]);
input_sync(wdata->extension.input);
}
static int wiimod_bboard_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_bboard_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static ssize_t wiimod_bboard_calib_show(struct device *dev,
struct device_attribute *attr,
char *out)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int i, j, ret;
__u16 val;
__u8 buf[24], offs;
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
wiimote_cmd_release(wdata);
spin_lock_irq(&wdata->state.lock);
offs = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
wdata->state.calib_bboard[j][i] = buf[offs];
wdata->state.calib_bboard[j][i] <<= 8;
wdata->state.calib_bboard[j][i] |= buf[offs + 1];
offs += 2;
}
}
spin_unlock_irq(&wdata->state.lock);
ret = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
val = wdata->state.calib_bboard[j][i];
if (i == 2 && j == 3)
ret += sprintf(&out[ret], "%04x\n", val);
else
ret += sprintf(&out[ret], "%04x:", val);
}
}
return ret;
}
static DEVICE_ATTR(bboard_calib, S_IRUGO, wiimod_bboard_calib_show, NULL);
static int wiimod_bboard_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i, j;
__u8 buf[24], offs;
wiimote_cmd_acquire_noint(wdata);
ret = wiimote_cmd_read(wdata, 0xa40024, buf, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
ret = wiimote_cmd_read(wdata, 0xa40024 + 12, buf + 12, 12);
if (ret != 12) {
wiimote_cmd_release(wdata);
return ret < 0 ? ret : -EIO;
}
wiimote_cmd_release(wdata);
offs = 0;
for (i = 0; i < 3; ++i) {
for (j = 0; j < 4; ++j) {
wdata->state.calib_bboard[j][i] = buf[offs];
wdata->state.calib_bboard[j][i] <<= 8;
wdata->state.calib_bboard[j][i] |= buf[offs + 1];
offs += 2;
}
}
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
ret = device_create_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
if (ret) {
hid_err(wdata->hdev, "cannot create sysfs attribute\n");
goto err_free;
}
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_bboard_open;
wdata->extension.input->close = wiimod_bboard_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Balance Board";
set_bit(EV_KEY, wdata->extension.input->evbit);
set_bit(BTN_A, wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT1Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT0Y, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, 0, 65535, 2, 4);
input_set_abs_params(wdata->extension.input,
ABS_HAT1Y, 0, 65535, 2, 4);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_file;
return 0;
err_file:
device_remove_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_bboard_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
device_remove_file(&wdata->hdev->dev,
&dev_attr_bboard_calib);
}
static const struct wiimod_ops wiimod_bboard = {
.flags = WIIMOD_FLAG_EXT8,
.arg = 0,
.probe = wiimod_bboard_probe,
.remove = wiimod_bboard_remove,
.in_keys = wiimod_bboard_in_keys,
.in_ext = wiimod_bboard_in_ext,
};
/*
* Pro Controller
* Released with the Wii U was the Nintendo Wii U Pro Controller. It does not
* work together with the classic Wii, but only with the new Wii U. However, it
* uses the same protocol and provides a builtin "classic controller pro"
* extension, few standard buttons, a rumble motor, 4 LEDs and a battery.
* We provide all these via a standard extension device as the device doesn't
* feature an extension port.
*/
enum wiimod_pro_keys {
WIIMOD_PRO_KEY_A,
WIIMOD_PRO_KEY_B,
WIIMOD_PRO_KEY_X,
WIIMOD_PRO_KEY_Y,
WIIMOD_PRO_KEY_PLUS,
WIIMOD_PRO_KEY_MINUS,
WIIMOD_PRO_KEY_HOME,
WIIMOD_PRO_KEY_LEFT,
WIIMOD_PRO_KEY_RIGHT,
WIIMOD_PRO_KEY_UP,
WIIMOD_PRO_KEY_DOWN,
WIIMOD_PRO_KEY_TL,
WIIMOD_PRO_KEY_TR,
WIIMOD_PRO_KEY_ZL,
WIIMOD_PRO_KEY_ZR,
WIIMOD_PRO_KEY_THUMBL,
WIIMOD_PRO_KEY_THUMBR,
WIIMOD_PRO_KEY_NUM,
};
static const __u16 wiimod_pro_map[] = {
BTN_EAST, /* WIIMOD_PRO_KEY_A */
BTN_SOUTH, /* WIIMOD_PRO_KEY_B */
BTN_NORTH, /* WIIMOD_PRO_KEY_X */
BTN_WEST, /* WIIMOD_PRO_KEY_Y */
BTN_START, /* WIIMOD_PRO_KEY_PLUS */
BTN_SELECT, /* WIIMOD_PRO_KEY_MINUS */
BTN_MODE, /* WIIMOD_PRO_KEY_HOME */
BTN_DPAD_LEFT, /* WIIMOD_PRO_KEY_LEFT */
BTN_DPAD_RIGHT, /* WIIMOD_PRO_KEY_RIGHT */
BTN_DPAD_UP, /* WIIMOD_PRO_KEY_UP */
BTN_DPAD_DOWN, /* WIIMOD_PRO_KEY_DOWN */
BTN_TL, /* WIIMOD_PRO_KEY_TL */
BTN_TR, /* WIIMOD_PRO_KEY_TR */
BTN_TL2, /* WIIMOD_PRO_KEY_ZL */
BTN_TR2, /* WIIMOD_PRO_KEY_ZR */
BTN_THUMBL, /* WIIMOD_PRO_KEY_THUMBL */
BTN_THUMBR, /* WIIMOD_PRO_KEY_THUMBR */
};
static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__s16 rx, ry, lx, ly;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | LX <7:0> |
* -----+-----------------------+-----------------------+
* 2 | 0 0 0 0 | LX <11:8> |
* -----+-----------------------+-----------------------+
* 3 | RX <7:0> |
* -----+-----------------------+-----------------------+
* 4 | 0 0 0 0 | RX <11:8> |
* -----+-----------------------+-----------------------+
* 5 | LY <7:0> |
* -----+-----------------------+-----------------------+
* 6 | 0 0 0 0 | LY <11:8> |
* -----+-----------------------+-----------------------+
* 7 | RY <7:0> |
* -----+-----------------------+-----------------------+
* 8 | 0 0 0 0 | RY <11:8> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 9 | BDR | BDD | BLT | B- | BH | B+ | BRT | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 10 | BZL | BB | BY | BA | BX | BZR | BDL | BDU |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 11 | 1 | BATTERY | USB |CHARG|LTHUM|RTHUM|
* -----+-----+-----------------+-----------+-----+-----+
* All buttons are low-active (0 if pressed)
* RX and RY are right analog stick
* LX and LY are left analog stick
* BLT is left trigger, BRT is right trigger.
* BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
* BZL is left Z button and BZR is right Z button
* B-, BH, B+ are +, HOME and - buttons
* BB, BY, BA, BX are A, B, X, Y buttons
*
* Bits marked as 0/1 are unknown and never changed during tests.
*
* Not entirely verified:
* CHARG: 1 if uncharging, 0 if charging
* USB: 1 if not connected, 0 if connected
* BATTERY: battery capacity from 000 (empty) to 100 (full)
*/
lx = (ext[0] & 0xff) | ((ext[1] & 0x0f) << 8);
rx = (ext[2] & 0xff) | ((ext[3] & 0x0f) << 8);
ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
/* zero-point offsets */
lx -= 0x800;
ly = 0x800 - ly;
rx -= 0x800;
ry = 0x800 - ry;
/* Trivial automatic calibration. We don't know any calibration data
* in the EEPROM so we must use the first report to calibrate the
* null-position of the analog sticks. Users can retrigger calibration
* via sysfs, or set it explicitly. If data is off more than abs(500),
* we skip calibration as the sticks are likely to be moved already. */
if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
if (abs(lx) < 500)
wdata->state.calib_pro_sticks[0] = -lx;
if (abs(ly) < 500)
wdata->state.calib_pro_sticks[1] = -ly;
if (abs(rx) < 500)
wdata->state.calib_pro_sticks[2] = -rx;
if (abs(ry) < 500)
wdata->state.calib_pro_sticks[3] = -ry;
}
/* apply calibration data */
lx += wdata->state.calib_pro_sticks[0];
ly += wdata->state.calib_pro_sticks[1];
rx += wdata->state.calib_pro_sticks[2];
ry += wdata->state.calib_pro_sticks[3];
input_report_abs(wdata->extension.input, ABS_X, lx);
input_report_abs(wdata->extension.input, ABS_Y, ly);
input_report_abs(wdata->extension.input, ABS_RX, rx);
input_report_abs(wdata->extension.input, ABS_RY, ry);
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
!(ext[8] & 0x80));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_DOWN],
!(ext[8] & 0x40));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_TL],
!(ext[8] & 0x20));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_MINUS],
!(ext[8] & 0x10));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_HOME],
!(ext[8] & 0x08));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_PLUS],
!(ext[8] & 0x04));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_TR],
!(ext[8] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_ZL],
!(ext[9] & 0x80));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_B],
!(ext[9] & 0x40));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_Y],
!(ext[9] & 0x20));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_A],
!(ext[9] & 0x10));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_X],
!(ext[9] & 0x08));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_ZR],
!(ext[9] & 0x04));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_LEFT],
!(ext[9] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_UP],
!(ext[9] & 0x01));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_THUMBL],
!(ext[10] & 0x02));
input_report_key(wdata->extension.input,
wiimod_pro_map[WIIMOD_PRO_KEY_THUMBR],
!(ext[10] & 0x01));
input_sync(wdata->extension.input);
}
static int wiimod_pro_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_pro_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_pro_play(struct input_dev *dev, void *data,
struct ff_effect *eff)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
/*
* The wiimote supports only a single rumble motor so if any magnitude
* is set to non-zero then we start the rumble motor. If both are set to
* zero, we stop the rumble motor.
*/
if (eff->u.rumble.strong_magnitude || eff->u.rumble.weak_magnitude)
value = 1;
else
value = 0;
/* Locking state.lock here might deadlock with input_event() calls.
* schedule_work acts as barrier. Merging multiple changes is fine. */
wdata->state.cache_rumble = value;
schedule_work(&wdata->rumble_worker);
return 0;
}
static ssize_t wiimod_pro_calib_show(struct device *dev,
struct device_attribute *attr,
char *out)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int r;
r = 0;
r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
return r;
}
static ssize_t wiimod_pro_calib_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct wiimote_data *wdata = dev_to_wii(dev);
int r;
s16 x1, y1, x2, y2;
if (!strncmp(buf, "scan\n", 5)) {
spin_lock_irq(&wdata->state.lock);
wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irq(&wdata->state.lock);
} else {
r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
if (r != 4)
return -EINVAL;
spin_lock_irq(&wdata->state.lock);
wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irq(&wdata->state.lock);
wdata->state.calib_pro_sticks[0] = x1;
wdata->state.calib_pro_sticks[1] = y1;
wdata->state.calib_pro_sticks[2] = x2;
wdata->state.calib_pro_sticks[3] = y2;
}
return strnlen(buf, PAGE_SIZE);
}
static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
wiimod_pro_calib_store);
static int wiimod_pro_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
unsigned long flags;
INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
wdata->state.calib_pro_sticks[0] = 0;
wdata->state.calib_pro_sticks[1] = 0;
wdata->state.calib_pro_sticks[2] = 0;
wdata->state.calib_pro_sticks[3] = 0;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
spin_unlock_irqrestore(&wdata->state.lock, flags);
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
set_bit(FF_RUMBLE, wdata->extension.input->ffbit);
input_set_drvdata(wdata->extension.input, wdata);
if (input_ff_create_memless(wdata->extension.input, NULL,
wiimod_pro_play)) {
ret = -ENOMEM;
goto err_free;
}
ret = device_create_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
if (ret) {
hid_err(wdata->hdev, "cannot create sysfs attribute\n");
goto err_free;
}
wdata->extension.input->open = wiimod_pro_open;
wdata->extension.input->close = wiimod_pro_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Pro Controller";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_PRO_KEY_NUM; ++i)
set_bit(wiimod_pro_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_X, wdata->extension.input->absbit);
set_bit(ABS_Y, wdata->extension.input->absbit);
set_bit(ABS_RX, wdata->extension.input->absbit);
set_bit(ABS_RY, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_X, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_Y, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_RX, -0x400, 0x400, 4, 100);
input_set_abs_params(wdata->extension.input,
ABS_RY, -0x400, 0x400, 4, 100);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_file;
return 0;
err_file:
device_remove_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_pro_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
cancel_work_sync(&wdata->rumble_worker);
device_remove_file(&wdata->hdev->dev,
&dev_attr_pro_calib);
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_pro = {
.flags = WIIMOD_FLAG_EXT16,
.arg = 0,
.probe = wiimod_pro_probe,
.remove = wiimod_pro_remove,
.in_ext = wiimod_pro_in_ext,
};
/*
* Drums
* Guitar-Hero, Rock-Band and other games came bundled with drums which can
* be plugged as extension to a Wiimote. Drum-reports are still not entirely
* figured out, but the most important information is known.
* We create a separate device for drums and report all information via this
* input device.
*/
static inline void wiimod_drums_report_pressure(struct wiimote_data *wdata,
__u8 none, __u8 which,
__u8 pressure, __u8 onoff,
__u8 *store, __u16 code,
__u8 which_code)
{
static const __u8 default_pressure = 3;
if (!none && which == which_code) {
*store = pressure;
input_report_abs(wdata->extension.input, code, *store);
} else if (onoff != !!*store) {
*store = onoff ? default_pressure : 0;
input_report_abs(wdata->extension.input, code, *store);
}
}
static void wiimod_drums_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__u8 pressure, which, none, hhp, sx, sy;
__u8 o, r, y, g, b, bass, bm, bp;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | 0 | 0 | SX <5:0> |
* 2 | 0 | 0 | SY <5:0> |
* -----+-----+-----+-----------------------------+-----+
* 3 | HPP | NON | WHICH <5:1> | ? |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 4 | SOFT <7:5> | 0 | 1 | 1 | 0 | ? |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | ? | 1 | 1 | B- | 1 | B+ | 1 | ? |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | O | R | Y | G | B | BSS | 1 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* All buttons are 0 if pressed
*
* With Motion+ enabled, the following bits will get invalid:
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | 0 | 0 | SX <5:1> |XXXXX|
* 2 | 0 | 0 | SY <5:1> |XXXXX|
* -----+-----+-----+-----------------------------+-----+
* 3 | HPP | NON | WHICH <5:1> | ? |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 4 | SOFT <7:5> | 0 | 1 | 1 | 0 | ? |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | ? | 1 | 1 | B- | 1 | B+ | 1 |XXXXX|
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | O | R | Y | G | B | BSS |XXXXX|XXXXX|
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
*/
pressure = 7 - (ext[3] >> 5);
which = (ext[2] >> 1) & 0x1f;
none = !!(ext[2] & 0x40);
hhp = !(ext[2] & 0x80);
sx = ext[0] & 0x3f;
sy = ext[1] & 0x3f;
o = !(ext[5] & 0x80);
r = !(ext[5] & 0x40);
y = !(ext[5] & 0x20);
g = !(ext[5] & 0x10);
b = !(ext[5] & 0x08);
bass = !(ext[5] & 0x04);
bm = !(ext[4] & 0x10);
bp = !(ext[4] & 0x04);
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
sx &= 0x3e;
sy &= 0x3e;
}
wiimod_drums_report_pressure(wdata, none, which, pressure,
o, &wdata->state.pressure_drums[0],
ABS_HAT2Y, 0x0e);
wiimod_drums_report_pressure(wdata, none, which, pressure,
r, &wdata->state.pressure_drums[1],
ABS_HAT0X, 0x19);
wiimod_drums_report_pressure(wdata, none, which, pressure,
y, &wdata->state.pressure_drums[2],
ABS_HAT2X, 0x11);
wiimod_drums_report_pressure(wdata, none, which, pressure,
g, &wdata->state.pressure_drums[3],
ABS_HAT1X, 0x12);
wiimod_drums_report_pressure(wdata, none, which, pressure,
b, &wdata->state.pressure_drums[4],
ABS_HAT0Y, 0x0f);
/* Bass shares pressure with hi-hat (set via hhp) */
wiimod_drums_report_pressure(wdata, none, hhp ? 0xff : which, pressure,
bass, &wdata->state.pressure_drums[5],
ABS_HAT3X, 0x1b);
/* Hi-hat has no on/off values, just pressure. Force to off/0. */
wiimod_drums_report_pressure(wdata, none, hhp ? which : 0xff, pressure,
0, &wdata->state.pressure_drums[6],
ABS_HAT3Y, 0x0e);
input_report_abs(wdata->extension.input, ABS_X, sx - 0x20);
input_report_abs(wdata->extension.input, ABS_Y, sy - 0x20);
input_report_key(wdata->extension.input, BTN_START, bp);
input_report_key(wdata->extension.input, BTN_SELECT, bm);
input_sync(wdata->extension.input);
}
static int wiimod_drums_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_drums_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_drums_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_drums_open;
wdata->extension.input->close = wiimod_drums_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Drums";
set_bit(EV_KEY, wdata->extension.input->evbit);
set_bit(BTN_START, wdata->extension.input->keybit);
set_bit(BTN_SELECT, wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_X, wdata->extension.input->absbit);
set_bit(ABS_Y, wdata->extension.input->absbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT0Y, wdata->extension.input->absbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT2X, wdata->extension.input->absbit);
set_bit(ABS_HAT2Y, wdata->extension.input->absbit);
set_bit(ABS_HAT3X, wdata->extension.input->absbit);
set_bit(ABS_HAT3Y, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_X, -32, 31, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_Y, -32, 31, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT0Y, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT2X, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT2Y, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT3X, 0, 7, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT3Y, 0, 7, 0, 0);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_drums_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_drums = {
.flags = 0,
.arg = 0,
.probe = wiimod_drums_probe,
.remove = wiimod_drums_remove,
.in_ext = wiimod_drums_in_ext,
};
/*
* Guitar
* Guitar-Hero, Rock-Band and other games came bundled with guitars which can
* be plugged as extension to a Wiimote.
* We create a separate device for guitars and report all information via this
* input device.
*/
enum wiimod_guitar_keys {
WIIMOD_GUITAR_KEY_G,
WIIMOD_GUITAR_KEY_R,
WIIMOD_GUITAR_KEY_Y,
WIIMOD_GUITAR_KEY_B,
WIIMOD_GUITAR_KEY_O,
WIIMOD_GUITAR_KEY_UP,
WIIMOD_GUITAR_KEY_DOWN,
WIIMOD_GUITAR_KEY_PLUS,
WIIMOD_GUITAR_KEY_MINUS,
WIIMOD_GUITAR_KEY_NUM,
};
static const __u16 wiimod_guitar_map[] = {
BTN_1, /* WIIMOD_GUITAR_KEY_G */
BTN_2, /* WIIMOD_GUITAR_KEY_R */
BTN_3, /* WIIMOD_GUITAR_KEY_Y */
BTN_4, /* WIIMOD_GUITAR_KEY_B */
BTN_5, /* WIIMOD_GUITAR_KEY_O */
BTN_DPAD_UP, /* WIIMOD_GUITAR_KEY_UP */
BTN_DPAD_DOWN, /* WIIMOD_GUITAR_KEY_DOWN */
BTN_START, /* WIIMOD_GUITAR_KEY_PLUS */
BTN_SELECT, /* WIIMOD_GUITAR_KEY_MINUS */
};
static void wiimod_guitar_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__u8 sx, sy, tb, wb, bd, bm, bp, bo, br, bb, bg, by, bu;
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | 0 | 0 | SX <5:0> |
* 2 | 0 | 0 | SY <5:0> |
* -----+-----+-----+-----+-----------------------------+
* 3 | 0 | 0 | 0 | TB <4:0> |
* -----+-----+-----+-----+-----------------------------+
* 4 | 0 | 0 | 0 | WB <4:0> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | 1 | BD | 1 | B- | 1 | B+ | 1 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BO | BR | BB | BG | BY | 1 | 1 | BU |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* All buttons are 0 if pressed
*
* With Motion+ enabled, it will look like this:
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 1 | 0 | 0 | SX <5:1> | BU |
* 2 | 0 | 0 | SY <5:1> | 1 |
* -----+-----+-----+-----+-----------------------+-----+
* 3 | 0 | 0 | 0 | TB <4:0> |
* -----+-----+-----+-----+-----------------------------+
* 4 | 0 | 0 | 0 | WB <4:0> |
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 5 | 1 | BD | 1 | B- | 1 | B+ | 1 |XXXXX|
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
* 6 | BO | BR | BB | BG | BY | 1 |XXXXX|XXXXX|
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
*/
sx = ext[0] & 0x3f;
sy = ext[1] & 0x3f;
tb = ext[2] & 0x1f;
wb = ext[3] & 0x1f;
bd = !(ext[4] & 0x40);
bm = !(ext[4] & 0x10);
bp = !(ext[4] & 0x04);
bo = !(ext[5] & 0x80);
br = !(ext[5] & 0x40);
bb = !(ext[5] & 0x20);
bg = !(ext[5] & 0x10);
by = !(ext[5] & 0x08);
bu = !(ext[5] & 0x01);
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
bu = !(ext[0] & 0x01);
sx &= 0x3e;
sy &= 0x3e;
}
input_report_abs(wdata->extension.input, ABS_X, sx - 0x20);
input_report_abs(wdata->extension.input, ABS_Y, sy - 0x20);
input_report_abs(wdata->extension.input, ABS_HAT0X, tb);
input_report_abs(wdata->extension.input, ABS_HAT1X, wb - 0x10);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_G],
bg);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_R],
br);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_Y],
by);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_B],
bb);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_O],
bo);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_UP],
bu);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_DOWN],
bd);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_PLUS],
bp);
input_report_key(wdata->extension.input,
wiimod_guitar_map[WIIMOD_GUITAR_KEY_MINUS],
bm);
input_sync(wdata->extension.input);
}
static int wiimod_guitar_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_guitar_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_guitar_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_guitar_open;
wdata->extension.input->close = wiimod_guitar_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Guitar";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_GUITAR_KEY_NUM; ++i)
set_bit(wiimod_guitar_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_X, wdata->extension.input->absbit);
set_bit(ABS_Y, wdata->extension.input->absbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_X, -32, 31, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_Y, -32, 31, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, 0, 0x1f, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, 0, 0x0f, 1, 1);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_guitar_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_guitar = {
.flags = 0,
.arg = 0,
.probe = wiimod_guitar_probe,
.remove = wiimod_guitar_remove,
.in_ext = wiimod_guitar_in_ext,
};
/*
* Turntable
* DJ Hero came with a Turntable Controller that was plugged in
* as an extension.
* We create a separate device for turntables and report all information via this
* input device.
*/
enum wiimod_turntable_keys {
WIIMOD_TURNTABLE_KEY_G_RIGHT,
WIIMOD_TURNTABLE_KEY_R_RIGHT,
WIIMOD_TURNTABLE_KEY_B_RIGHT,
WIIMOD_TURNTABLE_KEY_G_LEFT,
WIIMOD_TURNTABLE_KEY_R_LEFT,
WIIMOD_TURNTABLE_KEY_B_LEFT,
WIIMOD_TURNTABLE_KEY_EUPHORIA,
WIIMOD_TURNTABLE_KEY_PLUS,
WIIMOD_TURNTABLE_KEY_MINUS,
WIIMOD_TURNTABLE_KEY_NUM
};
static const __u16 wiimod_turntable_map[] = {
BTN_1, /* WIIMOD_TURNTABLE_KEY_G_RIGHT */
BTN_2, /* WIIMOD_TURNTABLE_KEY_R_RIGHT */
BTN_3, /* WIIMOD_TURNTABLE_KEY_B_RIGHT */
BTN_4, /* WIIMOD_TURNTABLE_KEY_G_LEFT */
BTN_5, /* WIIMOD_TURNTABLE_KEY_R_LEFT */
BTN_6, /* WIIMOD_TURNTABLE_KEY_B_LEFT */
BTN_7, /* WIIMOD_TURNTABLE_KEY_EUPHORIA */
BTN_START, /* WIIMOD_TURNTABLE_KEY_PLUS */
BTN_SELECT, /* WIIMOD_TURNTABLE_KEY_MINUS */
};
static void wiimod_turntable_in_ext(struct wiimote_data *wdata, const __u8 *ext)
{
__u8 be, cs, sx, sy, ed, rtt, rbg, rbr, rbb, ltt, lbg, lbr, lbb, bp, bm;
/*
* Byte | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
*------+------+-----+-----+-----+-----+------+------+--------+
* 0 | RTT<4:3> | SX <5:0> |
* 1 | RTT<2:1> | SY <5:0> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 2 |RTT<0>| ED<4:3> | CS<3:0> | RTT<5> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 3 | ED<2:0> | LTT<4:0> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 4 | 0 | 0 | LBR | B- | 0 | B+ | RBR | LTT<5> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 5 | LBB | 0 | RBG | BE | LBG | RBB | 0 | 0 |
*------+------+-----+-----+-----+-----+------+------+--------+
* All pressed buttons are 0
*
* With Motion+ enabled, it will look like this:
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
*------+------+-----+-----+-----+-----+------+------+--------+
* 1 | RTT<4:3> | SX <5:1> | 0 |
* 2 | RTT<2:1> | SY <5:1> | 0 |
*------+------+-----+-----+-----+-----+------+------+--------+
* 3 |RTT<0>| ED<4:3> | CS<3:0> | RTT<5> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 4 | ED<2:0> | LTT<4:0> |
*------+------+-----+-----+-----+-----+------+------+--------+
* 5 | 0 | 0 | LBR | B- | 0 | B+ | RBR | XXXX |
*------+------+-----+-----+-----+-----+------+------+--------+
* 6 | LBB | 0 | RBG | BE | LBG | RBB | XXXX | XXXX |
*------+------+-----+-----+-----+-----+------+------+--------+
*/
be = !(ext[5] & 0x10);
cs = ((ext[2] & 0x1e));
sx = ext[0] & 0x3f;
sy = ext[1] & 0x3f;
ed = (ext[3] & 0xe0) >> 5;
rtt = ((ext[2] & 0x01) << 5 | (ext[0] & 0xc0) >> 3 | (ext[1] & 0xc0) >> 5 | ( ext[2] & 0x80 ) >> 7);
ltt = ((ext[4] & 0x01) << 5 | (ext[3] & 0x1f));
rbg = !(ext[5] & 0x20);
rbr = !(ext[4] & 0x02);
rbb = !(ext[5] & 0x04);
lbg = !(ext[5] & 0x08);
lbb = !(ext[5] & 0x80);
lbr = !(ext[4] & 0x20);
bm = !(ext[4] & 0x10);
bp = !(ext[4] & 0x04);
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
ltt = (ext[4] & 0x01) << 5;
sx &= 0x3e;
sy &= 0x3e;
}
input_report_abs(wdata->extension.input, ABS_X, sx);
input_report_abs(wdata->extension.input, ABS_Y, sy);
input_report_abs(wdata->extension.input, ABS_HAT0X, rtt);
input_report_abs(wdata->extension.input, ABS_HAT1X, ltt);
input_report_abs(wdata->extension.input, ABS_HAT2X, cs);
input_report_abs(wdata->extension.input, ABS_HAT3X, ed);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_G_RIGHT],
rbg);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_R_RIGHT],
rbr);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_B_RIGHT],
rbb);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_G_LEFT],
lbg);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_R_LEFT],
lbr);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_B_LEFT],
lbb);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_EUPHORIA],
be);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_PLUS],
bp);
input_report_key(wdata->extension.input,
wiimod_turntable_map[WIIMOD_TURNTABLE_KEY_MINUS],
bm);
input_sync(wdata->extension.input);
}
static int wiimod_turntable_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_turntable_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_turntable_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret, i;
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
input_set_drvdata(wdata->extension.input, wdata);
wdata->extension.input->open = wiimod_turntable_open;
wdata->extension.input->close = wiimod_turntable_close;
wdata->extension.input->dev.parent = &wdata->hdev->dev;
wdata->extension.input->id.bustype = wdata->hdev->bus;
wdata->extension.input->id.vendor = wdata->hdev->vendor;
wdata->extension.input->id.product = wdata->hdev->product;
wdata->extension.input->id.version = wdata->hdev->version;
wdata->extension.input->name = WIIMOTE_NAME " Turntable";
set_bit(EV_KEY, wdata->extension.input->evbit);
for (i = 0; i < WIIMOD_TURNTABLE_KEY_NUM; ++i)
set_bit(wiimod_turntable_map[i],
wdata->extension.input->keybit);
set_bit(EV_ABS, wdata->extension.input->evbit);
set_bit(ABS_X, wdata->extension.input->absbit);
set_bit(ABS_Y, wdata->extension.input->absbit);
set_bit(ABS_HAT0X, wdata->extension.input->absbit);
set_bit(ABS_HAT1X, wdata->extension.input->absbit);
set_bit(ABS_HAT2X, wdata->extension.input->absbit);
set_bit(ABS_HAT3X, wdata->extension.input->absbit);
input_set_abs_params(wdata->extension.input,
ABS_X, 0, 63, 1, 0);
input_set_abs_params(wdata->extension.input,
ABS_Y, 63, 0, 1, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT0X, -8, 8, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT1X, -8, 8, 0, 0);
input_set_abs_params(wdata->extension.input,
ABS_HAT2X, 0, 31, 1, 1);
input_set_abs_params(wdata->extension.input,
ABS_HAT3X, 0, 7, 0, 0);
ret = input_register_device(wdata->extension.input);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->extension.input);
wdata->extension.input = NULL;
return ret;
}
static void wiimod_turntable_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->extension.input)
return;
input_unregister_device(wdata->extension.input);
wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_turntable = {
.flags = 0,
.arg = 0,
.probe = wiimod_turntable_probe,
.remove = wiimod_turntable_remove,
.in_ext = wiimod_turntable_in_ext,
};
/*
* Builtin Motion Plus
* This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
* disables polling for Motion-Plus. This should be set only for devices which
* don't allow MP hotplugging.
*/
static int wiimod_builtin_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_builtin_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_BUILTIN_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_builtin_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_builtin_mp_probe,
.remove = wiimod_builtin_mp_remove,
};
/*
* No Motion Plus
* This module simply sets the WIIPROTO_FLAG_NO_MP protocol flag which
* disables motion-plus. This is needed for devices that advertise this but we
* don't know how to use it (or whether it is actually present).
*/
static int wiimod_no_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_no_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_NO_MP;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static const struct wiimod_ops wiimod_no_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_no_mp_probe,
.remove = wiimod_no_mp_remove,
};
/*
* Motion Plus
* The Motion Plus extension provides rotation sensors (gyro) as a small
* extension device for Wii Remotes. Many devices have them built-in so
* you cannot see them from the outside.
* Motion Plus extensions are special because they are on a separate extension
* port and allow other extensions to be used simultaneously. This is all
* handled by the Wiimote Core so we don't have to deal with it.
*/
static void wiimod_mp_in_mp(struct wiimote_data *wdata, const __u8 *ext)
{
__s32 x, y, z;
/* | 8 7 6 5 4 3 | 2 | 1 |
* -----+------------------------------+-----+-----+
* 1 | Yaw Speed <7:0> |
* 2 | Roll Speed <7:0> |
* 3 | Pitch Speed <7:0> |
* -----+------------------------------+-----+-----+
* 4 | Yaw Speed <13:8> | Yaw |Pitch|
* -----+------------------------------+-----+-----+
* 5 | Roll Speed <13:8> |Roll | Ext |
* -----+------------------------------+-----+-----+
* 6 | Pitch Speed <13:8> | 1 | 0 |
* -----+------------------------------+-----+-----+
* The single bits Yaw, Roll, Pitch in the lower right corner specify
* whether the wiimote is rotating fast (0) or slow (1). Speed for slow
* roation is 8192/440 units / deg/s and for fast rotation 8192/2000
* units / deg/s. To get a linear scale for fast rotation we multiply
* by 2000/440 = ~4.5454 and scale both fast and slow by 9 to match the
* previous scale reported by this driver.
* This leaves a linear scale with 8192*9/440 (~167.564) units / deg/s.
* If the wiimote is not rotating the sensor reports 2^13 = 8192.
* Ext specifies whether an extension is connected to the motionp.
* which is parsed by wiimote-core.
*/
x = ext[0];
y = ext[1];
z = ext[2];
x |= (((__u16)ext[3]) << 6) & 0xff00;
y |= (((__u16)ext[4]) << 6) & 0xff00;
z |= (((__u16)ext[5]) << 6) & 0xff00;
x -= 8192;
y -= 8192;
z -= 8192;
if (!(ext[3] & 0x02))
x = (x * 2000 * 9) / 440;
else
x *= 9;
if (!(ext[4] & 0x02))
y = (y * 2000 * 9) / 440;
else
y *= 9;
if (!(ext[3] & 0x01))
z = (z * 2000 * 9) / 440;
else
z *= 9;
input_report_abs(wdata->mp, ABS_RX, x);
input_report_abs(wdata->mp, ABS_RY, y);
input_report_abs(wdata->mp, ABS_RZ, z);
input_sync(wdata->mp);
}
static int wiimod_mp_open(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_MP_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
__wiimote_schedule(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
static void wiimod_mp_close(struct input_dev *dev)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
__wiimote_schedule(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static int wiimod_mp_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
int ret;
wdata->mp = input_allocate_device();
if (!wdata->mp)
return -ENOMEM;
input_set_drvdata(wdata->mp, wdata);
wdata->mp->open = wiimod_mp_open;
wdata->mp->close = wiimod_mp_close;
wdata->mp->dev.parent = &wdata->hdev->dev;
wdata->mp->id.bustype = wdata->hdev->bus;
wdata->mp->id.vendor = wdata->hdev->vendor;
wdata->mp->id.product = wdata->hdev->product;
wdata->mp->id.version = wdata->hdev->version;
wdata->mp->name = WIIMOTE_NAME " Motion Plus";
set_bit(EV_ABS, wdata->mp->evbit);
set_bit(ABS_RX, wdata->mp->absbit);
set_bit(ABS_RY, wdata->mp->absbit);
set_bit(ABS_RZ, wdata->mp->absbit);
input_set_abs_params(wdata->mp,
ABS_RX, -16000, 16000, 4, 8);
input_set_abs_params(wdata->mp,
ABS_RY, -16000, 16000, 4, 8);
input_set_abs_params(wdata->mp,
ABS_RZ, -16000, 16000, 4, 8);
ret = input_register_device(wdata->mp);
if (ret)
goto err_free;
return 0;
err_free:
input_free_device(wdata->mp);
wdata->mp = NULL;
return ret;
}
static void wiimod_mp_remove(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
if (!wdata->mp)
return;
input_unregister_device(wdata->mp);
wdata->mp = NULL;
}
const struct wiimod_ops wiimod_mp = {
.flags = 0,
.arg = 0,
.probe = wiimod_mp_probe,
.remove = wiimod_mp_remove,
.in_mp = wiimod_mp_in_mp,
};
/* module table */
static const struct wiimod_ops wiimod_dummy;
const struct wiimod_ops *wiimod_table[WIIMOD_NUM] = {
[WIIMOD_KEYS] = &wiimod_keys,
[WIIMOD_RUMBLE] = &wiimod_rumble,
[WIIMOD_BATTERY] = &wiimod_battery,
[WIIMOD_LED1] = &wiimod_leds[0],
[WIIMOD_LED2] = &wiimod_leds[1],
[WIIMOD_LED3] = &wiimod_leds[2],
[WIIMOD_LED4] = &wiimod_leds[3],
[WIIMOD_ACCEL] = &wiimod_accel,
[WIIMOD_IR] = &wiimod_ir,
[WIIMOD_BUILTIN_MP] = &wiimod_builtin_mp,
[WIIMOD_NO_MP] = &wiimod_no_mp,
};
const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
[WIIMOTE_EXT_NONE] = &wiimod_dummy,
[WIIMOTE_EXT_UNKNOWN] = &wiimod_dummy,
[WIIMOTE_EXT_NUNCHUK] = &wiimod_nunchuk,
[WIIMOTE_EXT_CLASSIC_CONTROLLER] = &wiimod_classic,
[WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
[WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
[WIIMOTE_EXT_DRUMS] = &wiimod_drums,
[WIIMOTE_EXT_GUITAR] = &wiimod_guitar,
[WIIMOTE_EXT_TURNTABLE] = &wiimod_turntable,
};
| linux-master | drivers/hid/hid-wiimote-modules.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for PenMount touchscreens
*
* Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
*
* based on hid-penmount copyrighted by
* PenMount Touch Solutions <penmount <at> seed.net.tw>
*/
/*
*/
#include <linux/module.h>
#include <linux/hid.h>
#include "hid-ids.h"
static int penmount_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
if (((usage->hid - 1) & HID_USAGE) == 0) {
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
} else {
return -1;
}
}
return 0;
}
static const struct hid_device_id penmount_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
{ }
};
MODULE_DEVICE_TABLE(hid, penmount_devices);
static struct hid_driver penmount_driver = {
.name = "hid-penmount",
.id_table = penmount_devices,
.input_mapping = penmount_input_mapping,
};
module_hid_driver(penmount_driver);
MODULE_AUTHOR("Christian Gmeiner <[email protected]>");
MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-penmount.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Stadia controller rumble support.
*
* Copyright 2023 Google LLC
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include "hid-ids.h"
#define STADIA_FF_REPORT_ID 5
struct stadiaff_device {
struct hid_device *hid;
struct hid_report *report;
spinlock_t lock;
bool removed;
uint16_t strong_magnitude;
uint16_t weak_magnitude;
struct work_struct work;
};
static void stadiaff_work(struct work_struct *work)
{
struct stadiaff_device *stadiaff =
container_of(work, struct stadiaff_device, work);
struct hid_field *rumble_field = stadiaff->report->field[0];
unsigned long flags;
spin_lock_irqsave(&stadiaff->lock, flags);
rumble_field->value[0] = stadiaff->strong_magnitude;
rumble_field->value[1] = stadiaff->weak_magnitude;
spin_unlock_irqrestore(&stadiaff->lock, flags);
hid_hw_request(stadiaff->hid, stadiaff->report, HID_REQ_SET_REPORT);
}
static int stadiaff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct stadiaff_device *stadiaff = hid_get_drvdata(hid);
unsigned long flags;
spin_lock_irqsave(&stadiaff->lock, flags);
if (!stadiaff->removed) {
stadiaff->strong_magnitude = effect->u.rumble.strong_magnitude;
stadiaff->weak_magnitude = effect->u.rumble.weak_magnitude;
schedule_work(&stadiaff->work);
}
spin_unlock_irqrestore(&stadiaff->lock, flags);
return 0;
}
static int stadiaff_init(struct hid_device *hid)
{
struct stadiaff_device *stadiaff;
struct hid_report *report;
struct hid_input *hidinput;
struct input_dev *dev;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
report = hid_validate_values(hid, HID_OUTPUT_REPORT,
STADIA_FF_REPORT_ID, 0, 2);
if (!report)
return -ENODEV;
stadiaff = devm_kzalloc(&hid->dev, sizeof(struct stadiaff_device),
GFP_KERNEL);
if (!stadiaff)
return -ENOMEM;
hid_set_drvdata(hid, stadiaff);
input_set_capability(dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(dev, NULL, stadiaff_play);
if (error)
return error;
stadiaff->removed = false;
stadiaff->hid = hid;
stadiaff->report = report;
INIT_WORK(&stadiaff->work, stadiaff_work);
spin_lock_init(&stadiaff->lock);
hid_info(hid, "Force Feedback for Google Stadia controller\n");
return 0;
}
static int stadia_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
ret = stadiaff_init(hdev);
if (ret) {
hid_err(hdev, "force feedback init failed\n");
hid_hw_stop(hdev);
return ret;
}
return 0;
}
static void stadia_remove(struct hid_device *hid)
{
struct stadiaff_device *stadiaff = hid_get_drvdata(hid);
unsigned long flags;
spin_lock_irqsave(&stadiaff->lock, flags);
stadiaff->removed = true;
spin_unlock_irqrestore(&stadiaff->lock, flags);
cancel_work_sync(&stadiaff->work);
hid_hw_stop(hid);
}
static const struct hid_device_id stadia_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STADIA) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STADIA) },
{ }
};
MODULE_DEVICE_TABLE(hid, stadia_devices);
static struct hid_driver stadia_driver = {
.name = "stadia",
.id_table = stadia_devices,
.probe = stadia_probe,
.remove = stadia_remove,
};
module_hid_driver(stadia_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-google-stadiaff.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for TwinHan IR remote control
*
* Based on hid-gyration.c
*
* Copyright (c) 2009 Bruno Prémont <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* Remote control key layout + listing:
*
* Full Screen Power
* KEY_SCREEN KEY_POWER2
*
* 1 2 3
* KEY_NUMERIC_1 KEY_NUMERIC_2 KEY_NUMERIC_3
*
* 4 5 6
* KEY_NUMERIC_4 KEY_NUMERIC_5 KEY_NUMERIC_6
*
* 7 8 9
* KEY_NUMERIC_7 KEY_NUMERIC_8 KEY_NUMERIC_9
*
* REC 0 Favorite
* KEY_RECORD KEY_NUMERIC_0 KEY_FAVORITES
*
* Rewind Forward
* KEY_REWIND CH+ KEY_FORWARD
* KEY_CHANNELUP
*
* VOL- > VOL+
* KEY_VOLUMEDOWN KEY_PLAY KEY_VOLUMEUP
*
* CH-
* KEY_CHANNELDOWN
* Recall Stop
* KEY_RESTART KEY_STOP
*
* Timeshift/Pause Mute Cancel
* KEY_PAUSE KEY_MUTE KEY_CANCEL
*
* Capture Preview EPG
* KEY_PRINT KEY_PROGRAM KEY_EPG
*
* Record List Tab Teletext
* KEY_LIST KEY_TAB KEY_TEXT
*/
#define th_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int twinhan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
return 0;
switch (usage->hid & HID_USAGE) {
/* Map all keys from Twinhan Remote */
case 0x004: th_map_key_clear(KEY_TEXT); break;
case 0x006: th_map_key_clear(KEY_RESTART); break;
case 0x008: th_map_key_clear(KEY_EPG); break;
case 0x00c: th_map_key_clear(KEY_REWIND); break;
case 0x00e: th_map_key_clear(KEY_PROGRAM); break;
case 0x00f: th_map_key_clear(KEY_LIST); break;
case 0x010: th_map_key_clear(KEY_MUTE); break;
case 0x011: th_map_key_clear(KEY_FORWARD); break;
case 0x013: th_map_key_clear(KEY_PRINT); break;
case 0x017: th_map_key_clear(KEY_PAUSE); break;
case 0x019: th_map_key_clear(KEY_FAVORITES); break;
case 0x01d: th_map_key_clear(KEY_SCREEN); break;
case 0x01e: th_map_key_clear(KEY_NUMERIC_1); break;
case 0x01f: th_map_key_clear(KEY_NUMERIC_2); break;
case 0x020: th_map_key_clear(KEY_NUMERIC_3); break;
case 0x021: th_map_key_clear(KEY_NUMERIC_4); break;
case 0x022: th_map_key_clear(KEY_NUMERIC_5); break;
case 0x023: th_map_key_clear(KEY_NUMERIC_6); break;
case 0x024: th_map_key_clear(KEY_NUMERIC_7); break;
case 0x025: th_map_key_clear(KEY_NUMERIC_8); break;
case 0x026: th_map_key_clear(KEY_NUMERIC_9); break;
case 0x027: th_map_key_clear(KEY_NUMERIC_0); break;
case 0x028: th_map_key_clear(KEY_PLAY); break;
case 0x029: th_map_key_clear(KEY_CANCEL); break;
case 0x02b: th_map_key_clear(KEY_TAB); break;
/* Power = 0x0e0 + 0x0e1 + 0x0e2 + 0x03f */
case 0x03f: th_map_key_clear(KEY_POWER2); break;
case 0x04a: th_map_key_clear(KEY_RECORD); break;
case 0x04b: th_map_key_clear(KEY_CHANNELUP); break;
case 0x04d: th_map_key_clear(KEY_STOP); break;
case 0x04e: th_map_key_clear(KEY_CHANNELDOWN); break;
/* Volume down = 0x0e1 + 0x051 */
case 0x051: th_map_key_clear(KEY_VOLUMEDOWN); break;
/* Volume up = 0x0e1 + 0x052 */
case 0x052: th_map_key_clear(KEY_VOLUMEUP); break;
/* Kill the extra keys used for multi-key "power" and "volume" keys
* as well as continuously to release CTRL,ALT,META,... keys */
case 0x0e0:
case 0x0e1:
case 0x0e2:
case 0x0e3:
case 0x0e4:
case 0x0e5:
case 0x0e6:
case 0x0e7:
default:
return -1;
}
return 1;
}
static const struct hid_device_id twinhan_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
{ }
};
MODULE_DEVICE_TABLE(hid, twinhan_devices);
static struct hid_driver twinhan_driver = {
.name = "twinhan",
.id_table = twinhan_devices,
.input_mapping = twinhan_input_mapping,
};
module_hid_driver(twinhan_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-twinhan.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Kone driver for Linux
*
* Copyright (c) 2010 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Kone is a gamer mouse which consists of a mouse part and a keyboard
* part. The keyboard part enables the mouse to execute stored macros with mixed
* key- and button-events.
*
* TODO implement on-the-fly polling-rate change
* The windows driver has the ability to change the polling rate of the
* device on the press of a mousebutton.
* Is it possible to remove and reinstall the urb in raw-event- or any
* other handler, or to defer this action to be executed somewhere else?
*
* TODO is it possible to overwrite group for sysfs attributes via udev?
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-kone.h"
static uint profile_numbers[5] = {0, 1, 2, 3, 4};
static void kone_profile_activated(struct kone_device *kone, uint new_profile)
{
kone->actual_profile = new_profile;
kone->actual_dpi = kone->profiles[new_profile - 1].startup_dpi;
}
static void kone_profile_report(struct kone_device *kone, uint new_profile)
{
struct kone_roccat_report roccat_report;
roccat_report.event = kone_mouse_event_switch_profile;
roccat_report.value = new_profile;
roccat_report.key = 0;
roccat_report_event(kone->chrdev_minor, (uint8_t *)&roccat_report);
}
static int kone_receive(struct usb_device *usb_dev, uint usb_command,
void *data, uint size)
{
char *buf;
int len;
buf = kmalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
HID_REQ_GET_REPORT,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
usb_command, 0, buf, size, USB_CTRL_SET_TIMEOUT);
memcpy(data, buf, size);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
static int kone_send(struct usb_device *usb_dev, uint usb_command,
void const *data, uint size)
{
char *buf;
int len;
buf = kmemdup(data, size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
HID_REQ_SET_REPORT,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
usb_command, 0, buf, size, USB_CTRL_SET_TIMEOUT);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
static void kone_set_settings_checksum(struct kone_settings *settings)
{
uint16_t checksum = 0;
unsigned char *address = (unsigned char *)settings;
int i;
for (i = 0; i < sizeof(struct kone_settings) - 2; ++i, ++address)
checksum += *address;
settings->checksum = cpu_to_le16(checksum);
}
/*
* Checks success after writing data to mouse
* On success returns 0
* On failure returns errno
*/
static int kone_check_write(struct usb_device *usb_dev)
{
int retval;
uint8_t data;
do {
/*
* Mouse needs 50 msecs until it says ok, but there are
* 30 more msecs needed for next write to work.
*/
msleep(80);
retval = kone_receive(usb_dev,
kone_command_confirm_write, &data, 1);
if (retval)
return retval;
/*
* value of 3 seems to mean something like
* "not finished yet, but it looks good"
* So check again after a moment.
*/
} while (data == 3);
if (data == 1) /* everything alright */
return 0;
/* unknown answer */
dev_err(&usb_dev->dev, "got retval %d when checking write\n", data);
return -EIO;
}
/*
* Reads settings from mouse and stores it in @buf
* On success returns 0
* On failure returns errno
*/
static int kone_get_settings(struct usb_device *usb_dev,
struct kone_settings *buf)
{
return kone_receive(usb_dev, kone_command_settings, buf,
sizeof(struct kone_settings));
}
/*
* Writes settings from @buf to mouse
* On success returns 0
* On failure returns errno
*/
static int kone_set_settings(struct usb_device *usb_dev,
struct kone_settings const *settings)
{
int retval;
retval = kone_send(usb_dev, kone_command_settings,
settings, sizeof(struct kone_settings));
if (retval)
return retval;
return kone_check_write(usb_dev);
}
/*
* Reads profile data from mouse and stores it in @buf
* @number: profile number to read
* On success returns 0
* On failure returns errno
*/
static int kone_get_profile(struct usb_device *usb_dev,
struct kone_profile *buf, int number)
{
int len;
if (number < 1 || number > 5)
return -EINVAL;
len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
USB_REQ_CLEAR_FEATURE,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
kone_command_profile, number, buf,
sizeof(struct kone_profile), USB_CTRL_SET_TIMEOUT);
if (len != sizeof(struct kone_profile))
return -EIO;
return 0;
}
/*
* Writes profile data to mouse.
* @number: profile number to write
* On success returns 0
* On failure returns errno
*/
static int kone_set_profile(struct usb_device *usb_dev,
struct kone_profile const *profile, int number)
{
int len;
if (number < 1 || number > 5)
return -EINVAL;
len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
USB_REQ_SET_CONFIGURATION,
USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
kone_command_profile, number, (void *)profile,
sizeof(struct kone_profile),
USB_CTRL_SET_TIMEOUT);
if (len != sizeof(struct kone_profile))
return len;
if (kone_check_write(usb_dev))
return -EIO;
return 0;
}
/*
* Reads value of "fast-clip-weight" and stores it in @result
* On success returns 0
* On failure returns errno
*/
static int kone_get_weight(struct usb_device *usb_dev, int *result)
{
int retval;
uint8_t data;
retval = kone_receive(usb_dev, kone_command_weight, &data, 1);
if (retval)
return retval;
*result = (int)data;
return 0;
}
/*
* Reads firmware_version of mouse and stores it in @result
* On success returns 0
* On failure returns errno
*/
static int kone_get_firmware_version(struct usb_device *usb_dev, int *result)
{
int retval;
uint16_t data;
retval = kone_receive(usb_dev, kone_command_firmware_version,
&data, 2);
if (retval)
return retval;
*result = le16_to_cpu(data);
return 0;
}
static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_settings))
return 0;
if (off + count > sizeof(struct kone_settings))
count = sizeof(struct kone_settings) - off;
mutex_lock(&kone->kone_lock);
memcpy(buf, ((char const *)&kone->settings) + off, count);
mutex_unlock(&kone->kone_lock);
return count;
}
/*
* Writing settings automatically activates startup_profile.
* This function keeps values in kone_device up to date and assumes that in
* case of error the old data is still valid
*/
static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0, difference, old_profile;
struct kone_settings *settings = (struct kone_settings *)buf;
/* I need to get my data in one piece */
if (off != 0 || count != sizeof(struct kone_settings))
return -EINVAL;
mutex_lock(&kone->kone_lock);
difference = memcmp(settings, &kone->settings,
sizeof(struct kone_settings));
if (difference) {
if (settings->startup_profile < 1 ||
settings->startup_profile > 5) {
retval = -EINVAL;
goto unlock;
}
retval = kone_set_settings(usb_dev, settings);
if (retval)
goto unlock;
old_profile = kone->settings.startup_profile;
memcpy(&kone->settings, settings, sizeof(struct kone_settings));
kone_profile_activated(kone, kone->settings.startup_profile);
if (kone->settings.startup_profile != old_profile)
kone_profile_report(kone, kone->settings.startup_profile);
}
unlock:
mutex_unlock(&kone->kone_lock);
if (retval)
return retval;
return sizeof(struct kone_settings);
}
static BIN_ATTR(settings, 0660, kone_sysfs_read_settings,
kone_sysfs_write_settings, sizeof(struct kone_settings));
static ssize_t kone_sysfs_read_profilex(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr,
char *buf, loff_t off, size_t count) {
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_profile))
return 0;
if (off + count > sizeof(struct kone_profile))
count = sizeof(struct kone_profile) - off;
mutex_lock(&kone->kone_lock);
memcpy(buf, ((char const *)&kone->profiles[*(uint *)(attr->private)]) + off, count);
mutex_unlock(&kone->kone_lock);
return count;
}
/* Writes data only if different to stored data */
static ssize_t kone_sysfs_write_profilex(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr,
char *buf, loff_t off, size_t count) {
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
struct kone_profile *profile;
int retval = 0, difference;
/* I need to get my data in one piece */
if (off != 0 || count != sizeof(struct kone_profile))
return -EINVAL;
profile = &kone->profiles[*(uint *)(attr->private)];
mutex_lock(&kone->kone_lock);
difference = memcmp(buf, profile, sizeof(struct kone_profile));
if (difference) {
retval = kone_set_profile(usb_dev,
(struct kone_profile const *)buf,
*(uint *)(attr->private) + 1);
if (!retval)
memcpy(profile, buf, sizeof(struct kone_profile));
}
mutex_unlock(&kone->kone_lock);
if (retval)
return retval;
return sizeof(struct kone_profile);
}
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number = { \
.attr = { .name = "profile" #number, .mode = 0660 }, \
.size = sizeof(struct kone_profile), \
.read = kone_sysfs_read_profilex, \
.write = kone_sysfs_write_profilex, \
.private = &profile_numbers[number-1], \
}
PROFILE_ATTR(1);
PROFILE_ATTR(2);
PROFILE_ATTR(3);
PROFILE_ATTR(4);
PROFILE_ATTR(5);
static ssize_t kone_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_profile);
}
static DEVICE_ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL);
static ssize_t kone_sysfs_show_actual_dpi(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_dpi);
}
static DEVICE_ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL);
/* weight is read each time, since we don't get informed when it's changed */
static ssize_t kone_sysfs_show_weight(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone;
struct usb_device *usb_dev;
int weight = 0;
int retval;
dev = dev->parent->parent;
kone = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
mutex_lock(&kone->kone_lock);
retval = kone_get_weight(usb_dev, &weight);
mutex_unlock(&kone->kone_lock);
if (retval)
return retval;
return snprintf(buf, PAGE_SIZE, "%d\n", weight);
}
static DEVICE_ATTR(weight, 0440, kone_sysfs_show_weight, NULL);
static ssize_t kone_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->firmware_version);
}
static DEVICE_ATTR(firmware_version, 0440, kone_sysfs_show_firmware_version,
NULL);
static ssize_t kone_sysfs_show_tcu(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.tcu);
}
static int kone_tcu_command(struct usb_device *usb_dev, int number)
{
unsigned char value;
value = number;
return kone_send(usb_dev, kone_command_calibrate, &value, 1);
}
/*
* Calibrating the tcu is the only action that changes settings data inside the
* mouse, so this data needs to be reread
*/
static ssize_t kone_sysfs_set_tcu(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct kone_device *kone;
struct usb_device *usb_dev;
int retval;
unsigned long state;
dev = dev->parent->parent;
kone = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
retval = kstrtoul(buf, 10, &state);
if (retval)
return retval;
if (state != 0 && state != 1)
return -EINVAL;
mutex_lock(&kone->kone_lock);
if (state == 1) { /* state activate */
retval = kone_tcu_command(usb_dev, 1);
if (retval)
goto exit_unlock;
retval = kone_tcu_command(usb_dev, 2);
if (retval)
goto exit_unlock;
ssleep(5); /* tcu needs this time for calibration */
retval = kone_tcu_command(usb_dev, 3);
if (retval)
goto exit_unlock;
retval = kone_tcu_command(usb_dev, 0);
if (retval)
goto exit_unlock;
retval = kone_tcu_command(usb_dev, 4);
if (retval)
goto exit_unlock;
/*
* Kone needs this time to settle things.
* Reading settings too early will result in invalid data.
* Roccat's driver waits 1 sec, maybe this time could be
* shortened.
*/
ssleep(1);
}
/* calibration changes values in settings, so reread */
retval = kone_get_settings(usb_dev, &kone->settings);
if (retval)
goto exit_no_settings;
/* only write settings back if activation state is different */
if (kone->settings.tcu != state) {
kone->settings.tcu = state;
kone_set_settings_checksum(&kone->settings);
retval = kone_set_settings(usb_dev, &kone->settings);
if (retval) {
dev_err(&usb_dev->dev, "couldn't set tcu state\n");
/*
* try to reread valid settings into buffer overwriting
* first error code
*/
retval = kone_get_settings(usb_dev, &kone->settings);
if (retval)
goto exit_no_settings;
goto exit_unlock;
}
/* calibration resets profile */
kone_profile_activated(kone, kone->settings.startup_profile);
}
retval = size;
exit_no_settings:
dev_err(&usb_dev->dev, "couldn't read settings\n");
exit_unlock:
mutex_unlock(&kone->kone_lock);
return retval;
}
static DEVICE_ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu);
static ssize_t kone_sysfs_show_startup_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kone_device *kone =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.startup_profile);
}
static ssize_t kone_sysfs_set_startup_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct kone_device *kone;
struct usb_device *usb_dev;
int retval;
unsigned long new_startup_profile;
dev = dev->parent->parent;
kone = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
retval = kstrtoul(buf, 10, &new_startup_profile);
if (retval)
return retval;
if (new_startup_profile < 1 || new_startup_profile > 5)
return -EINVAL;
mutex_lock(&kone->kone_lock);
kone->settings.startup_profile = new_startup_profile;
kone_set_settings_checksum(&kone->settings);
retval = kone_set_settings(usb_dev, &kone->settings);
if (retval) {
mutex_unlock(&kone->kone_lock);
return retval;
}
/* changing the startup profile immediately activates this profile */
kone_profile_activated(kone, new_startup_profile);
kone_profile_report(kone, new_startup_profile);
mutex_unlock(&kone->kone_lock);
return size;
}
static DEVICE_ATTR(startup_profile, 0660, kone_sysfs_show_startup_profile,
kone_sysfs_set_startup_profile);
static struct attribute *kone_attrs[] = {
/*
* Read actual dpi settings.
* Returns raw value for further processing. Refer to enum
* kone_polling_rates to get real value.
*/
&dev_attr_actual_dpi.attr,
&dev_attr_actual_profile.attr,
/*
* The mouse can be equipped with one of four supplied weights from 5
* to 20 grams which are recognized and its value can be read out.
* This returns the raw value reported by the mouse for easy evaluation
* by software. Refer to enum kone_weights to get corresponding real
* weight.
*/
&dev_attr_weight.attr,
/*
* Prints firmware version stored in mouse as integer.
* The raw value reported by the mouse is returned for easy evaluation,
* to get the real version number the decimal point has to be shifted 2
* positions to the left. E.g. a value of 138 means 1.38.
*/
&dev_attr_firmware_version.attr,
/*
* Prints state of Tracking Control Unit as number where 0 = off and
* 1 = on. Writing 0 deactivates tcu and writing 1 calibrates and
* activates the tcu
*/
&dev_attr_tcu.attr,
/* Prints and takes the number of the profile the mouse starts with */
&dev_attr_startup_profile.attr,
NULL,
};
static struct bin_attribute *kone_bin_attributes[] = {
&bin_attr_settings,
&bin_attr_profile1,
&bin_attr_profile2,
&bin_attr_profile3,
&bin_attr_profile4,
&bin_attr_profile5,
NULL,
};
static const struct attribute_group kone_group = {
.attrs = kone_attrs,
.bin_attrs = kone_bin_attributes,
};
static const struct attribute_group *kone_groups[] = {
&kone_group,
NULL,
};
/* kone_class is used for creating sysfs attributes via roccat char device */
static const struct class kone_class = {
.name = "kone",
.dev_groups = kone_groups,
};
static int kone_init_kone_device_struct(struct usb_device *usb_dev,
struct kone_device *kone)
{
uint i;
int retval;
mutex_init(&kone->kone_lock);
for (i = 0; i < 5; ++i) {
retval = kone_get_profile(usb_dev, &kone->profiles[i], i + 1);
if (retval)
return retval;
}
retval = kone_get_settings(usb_dev, &kone->settings);
if (retval)
return retval;
retval = kone_get_firmware_version(usb_dev, &kone->firmware_version);
if (retval)
return retval;
kone_profile_activated(kone, kone->settings.startup_profile);
return 0;
}
/*
* Since IGNORE_MOUSE quirk moved to hid-apple, there is no way to bind only to
* mousepart if usb_hid is compiled into the kernel and kone is compiled as
* module.
* Secial behaviour is bound only to mousepart since only mouseevents contain
* additional notifications.
*/
static int kone_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct kone_device *kone;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
kone = kzalloc(sizeof(*kone), GFP_KERNEL);
if (!kone)
return -ENOMEM;
hid_set_drvdata(hdev, kone);
retval = kone_init_kone_device_struct(usb_dev, kone);
if (retval) {
hid_err(hdev, "couldn't init struct kone_device\n");
goto exit_free;
}
retval = roccat_connect(&kone_class, hdev,
sizeof(struct kone_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
/* be tolerant about not getting chrdev */
} else {
kone->roccat_claimed = 1;
kone->chrdev_minor = retval;
}
} else {
hid_set_drvdata(hdev, NULL);
}
return 0;
exit_free:
kfree(kone);
return retval;
}
static void kone_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct kone_device *kone;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
kone = hid_get_drvdata(hdev);
if (kone->roccat_claimed)
roccat_disconnect(kone->chrdev_minor);
kfree(hid_get_drvdata(hdev));
}
}
static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = kone_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void kone_remove(struct hid_device *hdev)
{
kone_remove_specials(hdev);
hid_hw_stop(hdev);
}
/* handle special events and keep actual profile and dpi values up to date */
static void kone_keep_values_up_to_date(struct kone_device *kone,
struct kone_mouse_event const *event)
{
switch (event->event) {
case kone_mouse_event_switch_profile:
kone->actual_dpi = kone->profiles[event->value - 1].
startup_dpi;
fallthrough;
case kone_mouse_event_osd_profile:
kone->actual_profile = event->value;
break;
case kone_mouse_event_switch_dpi:
case kone_mouse_event_osd_dpi:
kone->actual_dpi = event->value;
break;
}
}
static void kone_report_to_chrdev(struct kone_device const *kone,
struct kone_mouse_event const *event)
{
struct kone_roccat_report roccat_report;
switch (event->event) {
case kone_mouse_event_switch_profile:
case kone_mouse_event_switch_dpi:
case kone_mouse_event_osd_profile:
case kone_mouse_event_osd_dpi:
roccat_report.event = event->event;
roccat_report.value = event->value;
roccat_report.key = 0;
roccat_report_event(kone->chrdev_minor,
(uint8_t *)&roccat_report);
break;
case kone_mouse_event_call_overlong_macro:
case kone_mouse_event_multimedia:
if (event->value == kone_keystroke_action_press) {
roccat_report.event = event->event;
roccat_report.value = kone->actual_profile;
roccat_report.key = event->macro_key;
roccat_report_event(kone->chrdev_minor,
(uint8_t *)&roccat_report);
}
break;
}
}
/*
* Is called for keyboard- and mousepart.
* Only mousepart gets informations about special events in its extended event
* structure.
*/
static int kone_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct kone_device *kone = hid_get_drvdata(hdev);
struct kone_mouse_event *event = (struct kone_mouse_event *)data;
/* keyboard events are always processed by default handler */
if (size != sizeof(struct kone_mouse_event))
return 0;
if (kone == NULL)
return 0;
/*
* Firmware 1.38 introduced new behaviour for tilt and special buttons.
* Pressed button is reported in each movement event.
* Workaround sends only one event per press.
*/
if (memcmp(&kone->last_mouse_event.tilt, &event->tilt, 5))
memcpy(&kone->last_mouse_event, event,
sizeof(struct kone_mouse_event));
else
memset(&event->wipe, 0, sizeof(event->wipe));
kone_keep_values_up_to_date(kone, event);
if (kone->roccat_claimed)
kone_report_to_chrdev(kone, event);
return 0; /* always do further processing */
}
static const struct hid_device_id kone_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
{ }
};
MODULE_DEVICE_TABLE(hid, kone_devices);
static struct hid_driver kone_driver = {
.name = "kone",
.id_table = kone_devices,
.probe = kone_probe,
.remove = kone_remove,
.raw_event = kone_raw_event
};
static int __init kone_init(void)
{
int retval;
/* class name has to be same as driver name */
retval = class_register(&kone_class);
if (retval)
return retval;
retval = hid_register_driver(&kone_driver);
if (retval)
class_unregister(&kone_class);
return retval;
}
static void __exit kone_exit(void)
{
hid_unregister_driver(&kone_driver);
class_unregister(&kone_class);
}
module_init(kone_init);
module_exit(kone_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Kone driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-kone.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for LC Power Model RC1000MCE
*
* Copyright (c) 2011 Chris Schlund
* based on hid-topseed module
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define ts_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x046: ts_map_key_clear(KEY_YELLOW); break;
case 0x047: ts_map_key_clear(KEY_GREEN); break;
case 0x049: ts_map_key_clear(KEY_BLUE); break;
case 0x04a: ts_map_key_clear(KEY_RED); break;
case 0x00d: ts_map_key_clear(KEY_HOME); break;
case 0x025: ts_map_key_clear(KEY_TV); break;
case 0x048: ts_map_key_clear(KEY_VCR); break;
case 0x024: ts_map_key_clear(KEY_MENU); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id ts_devices[] = {
{ HID_USB_DEVICE( USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000) },
{ }
};
MODULE_DEVICE_TABLE(hid, ts_devices);
static struct hid_driver ts_driver = {
.name = "LC RC1000MCE",
.id_table = ts_devices,
.input_mapping = ts_input_mapping,
};
module_hid_driver(ts_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-lcpower.c |
// SPDX-License-Identifier: GPL-2.0
/*
* When connected to the machine, the Thrustmaster wheels appear as
* a «generic» hid gamepad called "Thrustmaster FFB Wheel".
*
* When in this mode not every functionality of the wheel, like the force feedback,
* are available. To enable all functionalities of a Thrustmaster wheel we have to send
* to it a specific USB CONTROL request with a code different for each wheel.
*
* This driver tries to understand which model of Thrustmaster wheel the generic
* "Thrustmaster FFB Wheel" really is and then sends the appropriate control code.
*
* Copyright (c) 2020-2021 Dario Pagani <[email protected]>
* Copyright (c) 2020-2021 Kim Kuparinen <[email protected]>
*/
#include <linux/hid.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
/*
* These interrupts are used to prevent a nasty crash when initializing the
* T300RS. Used in thrustmaster_interrupts().
*/
static const u8 setup_0[] = { 0x42, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const u8 setup_1[] = { 0x0a, 0x04, 0x90, 0x03, 0x00, 0x00, 0x00, 0x00 };
static const u8 setup_2[] = { 0x0a, 0x04, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00 };
static const u8 setup_3[] = { 0x0a, 0x04, 0x12, 0x10, 0x00, 0x00, 0x00, 0x00 };
static const u8 setup_4[] = { 0x0a, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00 };
static const u8 *const setup_arr[] = { setup_0, setup_1, setup_2, setup_3, setup_4 };
static const unsigned int setup_arr_sizes[] = {
ARRAY_SIZE(setup_0),
ARRAY_SIZE(setup_1),
ARRAY_SIZE(setup_2),
ARRAY_SIZE(setup_3),
ARRAY_SIZE(setup_4)
};
/*
* This struct contains for each type of
* Thrustmaster wheel
*
* Note: The values are stored in the CPU
* endianness, the USB protocols always use
* little endian; the macro cpu_to_le[BIT]()
* must be used when preparing USB packets
* and vice-versa
*/
struct tm_wheel_info {
uint16_t wheel_type;
/*
* See when the USB control out packet is prepared...
* @TODO The TMX seems to require multiple control codes to switch.
*/
uint16_t switch_value;
char const *const wheel_name;
};
/*
* Known wheels.
* Note: TMX does not work as it requires 2 control packets
*/
static const struct tm_wheel_info tm_wheels_infos[] = {
{0x0306, 0x0006, "Thrustmaster T150RS"},
{0x0200, 0x0005, "Thrustmaster T300RS (Missing Attachment)"},
{0x0206, 0x0005, "Thrustmaster T300RS"},
{0x0209, 0x0005, "Thrustmaster T300RS (Open Wheel Attachment)"},
{0x020a, 0x0005, "Thrustmaster T300RS (Sparco R383 Mod)"},
{0x0204, 0x0005, "Thrustmaster T300 Ferrari Alcantara Edition"},
{0x0002, 0x0002, "Thrustmaster T500RS"}
//{0x0407, 0x0001, "Thrustmaster TMX"}
};
static const uint8_t tm_wheels_infos_length = 7;
/*
* This structs contains (in little endian) the response data
* of the wheel to the request 73
*
* A sufficient research to understand what each field does is not
* beign conducted yet. The position and meaning of fields are a
* just a very optimistic guess based on instinct....
*/
struct __packed tm_wheel_response
{
/*
* Seems to be the type of packet
* - 0x0049 if is data.a (15 bytes)
* - 0x0047 if is data.b (7 bytes)
*/
uint16_t type;
union {
struct __packed {
uint16_t field0;
uint16_t field1;
/*
* Seems to be the model code of the wheel
* Read table thrustmaster_wheels to values
*/
uint16_t model;
uint16_t field2;
uint16_t field3;
uint16_t field4;
uint16_t field5;
} a;
struct __packed {
uint16_t field0;
uint16_t field1;
uint16_t model;
} b;
} data;
};
struct tm_wheel {
struct usb_device *usb_dev;
struct urb *urb;
struct usb_ctrlrequest *model_request;
struct tm_wheel_response *response;
struct usb_ctrlrequest *change_request;
};
/* The control packet to send to wheel */
static const struct usb_ctrlrequest model_request = {
.bRequestType = 0xc1,
.bRequest = 73,
.wValue = 0,
.wIndex = 0,
.wLength = cpu_to_le16(0x0010)
};
static const struct usb_ctrlrequest change_request = {
.bRequestType = 0x41,
.bRequest = 83,
.wValue = 0, // Will be filled by the driver
.wIndex = 0,
.wLength = 0
};
/*
* On some setups initializing the T300RS crashes the kernel,
* these interrupts fix that particular issue. So far they haven't caused any
* adverse effects in other wheels.
*/
static void thrustmaster_interrupts(struct hid_device *hdev)
{
int ret, trans, i, b_ep;
u8 *send_buf = kmalloc(256, GFP_KERNEL);
struct usb_host_endpoint *ep;
struct device *dev = &hdev->dev;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
if (!send_buf) {
hid_err(hdev, "failed allocating send buffer\n");
return;
}
if (usbif->cur_altsetting->desc.bNumEndpoints < 2) {
kfree(send_buf);
hid_err(hdev, "Wrong number of endpoints?\n");
return;
}
ep = &usbif->cur_altsetting->endpoint[1];
b_ep = ep->desc.bEndpointAddress;
for (i = 0; i < ARRAY_SIZE(setup_arr); ++i) {
memcpy(send_buf, setup_arr[i], setup_arr_sizes[i]);
ret = usb_interrupt_msg(usbdev,
usb_sndintpipe(usbdev, b_ep),
send_buf,
setup_arr_sizes[i],
&trans,
USB_CTRL_SET_TIMEOUT);
if (ret) {
hid_err(hdev, "setup data couldn't be sent\n");
kfree(send_buf);
return;
}
}
kfree(send_buf);
}
static void thrustmaster_change_handler(struct urb *urb)
{
struct hid_device *hdev = urb->context;
// The wheel seems to kill himself before answering the host and therefore is violating the USB protocol...
if (urb->status == 0 || urb->status == -EPROTO || urb->status == -EPIPE)
hid_info(hdev, "Success?! The wheel should have been initialized!\n");
else
hid_warn(hdev, "URB to change wheel mode seems to have failed with error %d\n", urb->status);
}
/*
* Called by the USB subsystem when the wheel responses to our request
* to get [what it seems to be] the wheel's model.
*
* If the model id is recognized then we send an opportune USB CONTROL REQUEST
* to switch the wheel to its full capabilities
*/
static void thrustmaster_model_handler(struct urb *urb)
{
struct hid_device *hdev = urb->context;
struct tm_wheel *tm_wheel = hid_get_drvdata(hdev);
uint16_t model = 0;
int i, ret;
const struct tm_wheel_info *twi = NULL;
if (urb->status) {
hid_err(hdev, "URB to get model id failed with error %d\n", urb->status);
return;
}
if (tm_wheel->response->type == cpu_to_le16(0x49))
model = le16_to_cpu(tm_wheel->response->data.a.model);
else if (tm_wheel->response->type == cpu_to_le16(0x47))
model = le16_to_cpu(tm_wheel->response->data.b.model);
else {
hid_err(hdev, "Unknown packet type 0x%x, unable to proceed further with wheel init\n", tm_wheel->response->type);
return;
}
for (i = 0; i < tm_wheels_infos_length && !twi; i++)
if (tm_wheels_infos[i].wheel_type == model)
twi = tm_wheels_infos + i;
if (twi)
hid_info(hdev, "Wheel with model id 0x%x is a %s\n", model, twi->wheel_name);
else {
hid_err(hdev, "Unknown wheel's model id 0x%x, unable to proceed further with wheel init\n", model);
return;
}
tm_wheel->change_request->wValue = cpu_to_le16(twi->switch_value);
usb_fill_control_urb(
tm_wheel->urb,
tm_wheel->usb_dev,
usb_sndctrlpipe(tm_wheel->usb_dev, 0),
(char *)tm_wheel->change_request,
NULL, 0, // We do not expect any response from the wheel
thrustmaster_change_handler,
hdev
);
ret = usb_submit_urb(tm_wheel->urb, GFP_ATOMIC);
if (ret)
hid_err(hdev, "Error %d while submitting the change URB. I am unable to initialize this wheel...\n", ret);
}
static void thrustmaster_remove(struct hid_device *hdev)
{
struct tm_wheel *tm_wheel = hid_get_drvdata(hdev);
usb_kill_urb(tm_wheel->urb);
kfree(tm_wheel->change_request);
kfree(tm_wheel->response);
kfree(tm_wheel->model_request);
usb_free_urb(tm_wheel->urb);
kfree(tm_wheel);
hid_hw_stop(hdev);
}
/*
* Function called by HID when a hid Thrustmaster FFB wheel is connected to the host.
* This function starts the hid dev, tries to allocate the tm_wheel data structure and
* finally send an USB CONTROL REQUEST to the wheel to get [what it seems to be] its
* model type.
*/
static int thrustmaster_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret = 0;
struct tm_wheel *tm_wheel = NULL;
if (!hid_is_usb(hdev))
return -EINVAL;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed with error %d\n", ret);
goto error0;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed with error %d\n", ret);
goto error0;
}
// Now we allocate the tm_wheel
tm_wheel = kzalloc(sizeof(struct tm_wheel), GFP_KERNEL);
if (!tm_wheel) {
ret = -ENOMEM;
goto error1;
}
tm_wheel->urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!tm_wheel->urb) {
ret = -ENOMEM;
goto error2;
}
tm_wheel->model_request = kmemdup(&model_request,
sizeof(struct usb_ctrlrequest),
GFP_KERNEL);
if (!tm_wheel->model_request) {
ret = -ENOMEM;
goto error3;
}
tm_wheel->response = kzalloc(sizeof(struct tm_wheel_response), GFP_KERNEL);
if (!tm_wheel->response) {
ret = -ENOMEM;
goto error4;
}
tm_wheel->change_request = kmemdup(&change_request,
sizeof(struct usb_ctrlrequest),
GFP_KERNEL);
if (!tm_wheel->change_request) {
ret = -ENOMEM;
goto error5;
}
tm_wheel->usb_dev = interface_to_usbdev(to_usb_interface(hdev->dev.parent));
hid_set_drvdata(hdev, tm_wheel);
thrustmaster_interrupts(hdev);
usb_fill_control_urb(
tm_wheel->urb,
tm_wheel->usb_dev,
usb_rcvctrlpipe(tm_wheel->usb_dev, 0),
(char *)tm_wheel->model_request,
tm_wheel->response,
sizeof(struct tm_wheel_response),
thrustmaster_model_handler,
hdev
);
ret = usb_submit_urb(tm_wheel->urb, GFP_ATOMIC);
if (ret) {
hid_err(hdev, "Error %d while submitting the URB. I am unable to initialize this wheel...\n", ret);
goto error6;
}
return ret;
error6: kfree(tm_wheel->change_request);
error5: kfree(tm_wheel->response);
error4: kfree(tm_wheel->model_request);
error3: usb_free_urb(tm_wheel->urb);
error2: kfree(tm_wheel);
error1: hid_hw_stop(hdev);
error0:
return ret;
}
static const struct hid_device_id thrustmaster_devices[] = {
{ HID_USB_DEVICE(0x044f, 0xb65d)},
{}
};
MODULE_DEVICE_TABLE(hid, thrustmaster_devices);
static struct hid_driver thrustmaster_driver = {
.name = "hid-thrustmaster",
.id_table = thrustmaster_devices,
.probe = thrustmaster_probe,
.remove = thrustmaster_remove,
};
module_hid_driver(thrustmaster_driver);
MODULE_AUTHOR("Dario Pagani <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Driver to initialize some steering wheel joysticks from Thrustmaster");
| linux-master | drivers/hid/hid-thrustmaster.c |
// SPDX-License-Identifier: GPL-2.0-only
/***************************************************************************
* Copyright (C) 2010-2012 by Bruno Prémont <[email protected]> *
* *
* Based on Logitech G13 driver (v0.4) *
* Copyright (C) 2009 by Rick L. Vinyard, Jr. <[email protected]> *
* *
***************************************************************************/
#include <linux/hid.h>
#include <linux/fb.h>
#include <linux/lcd.h>
#include "hid-picolcd.h"
/*
* lcd class device
*/
static int picolcd_get_contrast(struct lcd_device *ldev)
{
struct picolcd_data *data = lcd_get_data(ldev);
return data->lcd_contrast;
}
static int picolcd_set_contrast(struct lcd_device *ldev, int contrast)
{
struct picolcd_data *data = lcd_get_data(ldev);
struct hid_report *report = picolcd_out_report(REPORT_CONTRAST, data->hdev);
unsigned long flags;
if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
return -ENODEV;
data->lcd_contrast = contrast & 0x0ff;
spin_lock_irqsave(&data->lock, flags);
hid_set_field(report->field[0], 0, data->lcd_contrast);
if (!(data->status & PICOLCD_FAILED))
hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
return 0;
}
static int picolcd_check_lcd_fb(struct lcd_device *ldev, struct fb_info *fb)
{
return fb && fb == picolcd_fbinfo((struct picolcd_data *)lcd_get_data(ldev));
}
static struct lcd_ops picolcd_lcdops = {
.get_contrast = picolcd_get_contrast,
.set_contrast = picolcd_set_contrast,
.check_fb = picolcd_check_lcd_fb,
};
int picolcd_init_lcd(struct picolcd_data *data, struct hid_report *report)
{
struct device *dev = &data->hdev->dev;
struct lcd_device *ldev;
if (!report)
return -ENODEV;
if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
report->field[0]->report_size != 8) {
dev_err(dev, "unsupported CONTRAST report");
return -EINVAL;
}
ldev = lcd_device_register(dev_name(dev), dev, data, &picolcd_lcdops);
if (IS_ERR(ldev)) {
dev_err(dev, "failed to register LCD\n");
return PTR_ERR(ldev);
}
ldev->props.max_contrast = 0x0ff;
data->lcd_contrast = 0xe5;
data->lcd = ldev;
picolcd_set_contrast(ldev, 0xe5);
return 0;
}
void picolcd_exit_lcd(struct picolcd_data *data)
{
struct lcd_device *ldev = data->lcd;
data->lcd = NULL;
lcd_device_unregister(ldev);
}
int picolcd_resume_lcd(struct picolcd_data *data)
{
if (!data->lcd)
return 0;
return picolcd_set_contrast(data->lcd, data->lcd_contrast);
}
| linux-master | drivers/hid/hid-picolcd_lcd.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* hid-sensor-custom.c
* Copyright (c) 2015, Intel Corporation.
*/
#include <linux/ctype.h>
#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/miscdevice.h>
#include <linux/kfifo.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/poll.h>
#include <linux/bsearch.h>
#include <linux/platform_device.h>
#include <linux/hid-sensor-hub.h>
#define HID_CUSTOM_NAME_LENGTH 64
#define HID_CUSTOM_MAX_CORE_ATTRS 10
#define HID_CUSTOM_TOTAL_ATTRS (HID_CUSTOM_MAX_CORE_ATTRS + 1)
#define HID_CUSTOM_FIFO_SIZE 4096
#define HID_CUSTOM_MAX_FEATURE_BYTES 64
#define HID_SENSOR_USAGE_LENGTH (4 + 1)
struct hid_sensor_custom_field {
int report_id;
char group_name[HID_CUSTOM_NAME_LENGTH];
struct hid_sensor_hub_attribute_info attribute;
struct device_attribute sd_attrs[HID_CUSTOM_MAX_CORE_ATTRS];
char attr_name[HID_CUSTOM_TOTAL_ATTRS][HID_CUSTOM_NAME_LENGTH];
struct attribute *attrs[HID_CUSTOM_TOTAL_ATTRS];
struct attribute_group hid_custom_attribute_group;
};
struct hid_sensor_custom {
struct mutex mutex;
struct platform_device *pdev;
struct hid_sensor_hub_device *hsdev;
struct hid_sensor_hub_callbacks callbacks;
int sensor_field_count;
struct hid_sensor_custom_field *fields;
int input_field_count;
int input_report_size;
int input_report_recd_size;
bool input_skip_sample;
bool enable;
struct hid_sensor_custom_field *power_state;
struct hid_sensor_custom_field *report_state;
struct miscdevice custom_dev;
struct kfifo data_fifo;
unsigned long misc_opened;
wait_queue_head_t wait;
struct platform_device *custom_pdev;
};
/* Header for each sample to user space via dev interface */
struct hid_sensor_sample {
u32 usage_id;
u64 timestamp;
u32 raw_len;
} __packed;
static struct attribute hid_custom_attrs[HID_CUSTOM_TOTAL_ATTRS] = {
{.name = "name", .mode = S_IRUGO},
{.name = "units", .mode = S_IRUGO},
{.name = "unit-expo", .mode = S_IRUGO},
{.name = "minimum", .mode = S_IRUGO},
{.name = "maximum", .mode = S_IRUGO},
{.name = "size", .mode = S_IRUGO},
{.name = "value", .mode = S_IWUSR | S_IRUGO},
{.name = NULL}
};
static const struct hid_custom_usage_desc {
int usage_id;
char *desc;
} hid_custom_usage_desc_table[] = {
{0x200201, "event-sensor-state"},
{0x200202, "event-sensor-event"},
{0x200301, "property-friendly-name"},
{0x200302, "property-persistent-unique-id"},
{0x200303, "property-sensor-status"},
{0x200304, "property-min-report-interval"},
{0x200305, "property-sensor-manufacturer"},
{0x200306, "property-sensor-model"},
{0x200307, "property-sensor-serial-number"},
{0x200308, "property-sensor-description"},
{0x200309, "property-sensor-connection-type"},
{0x20030A, "property-sensor-device-path"},
{0x20030B, "property-hardware-revision"},
{0x20030C, "property-firmware-version"},
{0x20030D, "property-release-date"},
{0x20030E, "property-report-interval"},
{0x20030F, "property-change-sensitivity-absolute"},
{0x200310, "property-change-sensitivity-percent-range"},
{0x200311, "property-change-sensitivity-percent-relative"},
{0x200312, "property-accuracy"},
{0x200313, "property-resolution"},
{0x200314, "property-maximum"},
{0x200315, "property-minimum"},
{0x200316, "property-reporting-state"},
{0x200317, "property-sampling-rate"},
{0x200318, "property-response-curve"},
{0x200319, "property-power-state"},
{0x200540, "data-field-custom"},
{0x200541, "data-field-custom-usage"},
{0x200542, "data-field-custom-boolean-array"},
{0x200543, "data-field-custom-value"},
{0x200544, "data-field-custom-value_1"},
{0x200545, "data-field-custom-value_2"},
{0x200546, "data-field-custom-value_3"},
{0x200547, "data-field-custom-value_4"},
{0x200548, "data-field-custom-value_5"},
{0x200549, "data-field-custom-value_6"},
{0x20054A, "data-field-custom-value_7"},
{0x20054B, "data-field-custom-value_8"},
{0x20054C, "data-field-custom-value_9"},
{0x20054D, "data-field-custom-value_10"},
{0x20054E, "data-field-custom-value_11"},
{0x20054F, "data-field-custom-value_12"},
{0x200550, "data-field-custom-value_13"},
{0x200551, "data-field-custom-value_14"},
{0x200552, "data-field-custom-value_15"},
{0x200553, "data-field-custom-value_16"},
{0x200554, "data-field-custom-value_17"},
{0x200555, "data-field-custom-value_18"},
{0x200556, "data-field-custom-value_19"},
{0x200557, "data-field-custom-value_20"},
{0x200558, "data-field-custom-value_21"},
{0x200559, "data-field-custom-value_22"},
{0x20055A, "data-field-custom-value_23"},
{0x20055B, "data-field-custom-value_24"},
{0x20055C, "data-field-custom-value_25"},
{0x20055D, "data-field-custom-value_26"},
{0x20055E, "data-field-custom-value_27"},
{0x20055F, "data-field-custom-value_28"},
};
static int usage_id_cmp(const void *p1, const void *p2)
{
if (*(int *)p1 < *(int *)p2)
return -1;
if (*(int *)p1 > *(int *)p2)
return 1;
return 0;
}
static ssize_t enable_sensor_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", sensor_inst->enable);
}
static int set_power_report_state(struct hid_sensor_custom *sensor_inst,
bool state)
{
int power_val = -1;
int report_val = -1;
u32 power_state_usage_id;
u32 report_state_usage_id;
int ret;
/*
* It is possible that the power/report state ids are not present.
* In this case this function will return success. But if the
* ids are present, then it will return error if set fails.
*/
if (state) {
power_state_usage_id =
HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
report_state_usage_id =
HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
} else {
power_state_usage_id =
HID_USAGE_SENSOR_PROP_POWER_STATE_D4_POWER_OFF_ENUM;
report_state_usage_id =
HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM;
}
if (sensor_inst->power_state)
power_val = hid_sensor_get_usage_index(sensor_inst->hsdev,
sensor_inst->power_state->attribute.report_id,
sensor_inst->power_state->attribute.index,
power_state_usage_id);
if (sensor_inst->report_state)
report_val = hid_sensor_get_usage_index(sensor_inst->hsdev,
sensor_inst->report_state->attribute.report_id,
sensor_inst->report_state->attribute.index,
report_state_usage_id);
if (power_val >= 0) {
power_val +=
sensor_inst->power_state->attribute.logical_minimum;
ret = sensor_hub_set_feature(sensor_inst->hsdev,
sensor_inst->power_state->attribute.report_id,
sensor_inst->power_state->attribute.index,
sizeof(power_val),
&power_val);
if (ret) {
hid_err(sensor_inst->hsdev->hdev,
"Set power state failed\n");
return ret;
}
}
if (report_val >= 0) {
report_val +=
sensor_inst->report_state->attribute.logical_minimum;
ret = sensor_hub_set_feature(sensor_inst->hsdev,
sensor_inst->report_state->attribute.report_id,
sensor_inst->report_state->attribute.index,
sizeof(report_val),
&report_val);
if (ret) {
hid_err(sensor_inst->hsdev->hdev,
"Set report state failed\n");
return ret;
}
}
return 0;
}
static ssize_t enable_sensor_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
int value;
int ret = -EINVAL;
if (kstrtoint(buf, 0, &value) != 0)
return -EINVAL;
mutex_lock(&sensor_inst->mutex);
if (value && !sensor_inst->enable) {
ret = sensor_hub_device_open(sensor_inst->hsdev);
if (ret)
goto unlock_state;
ret = set_power_report_state(sensor_inst, true);
if (ret) {
sensor_hub_device_close(sensor_inst->hsdev);
goto unlock_state;
}
sensor_inst->enable = true;
} else if (!value && sensor_inst->enable) {
ret = set_power_report_state(sensor_inst, false);
sensor_hub_device_close(sensor_inst->hsdev);
sensor_inst->enable = false;
}
unlock_state:
mutex_unlock(&sensor_inst->mutex);
if (ret < 0)
return ret;
return count;
}
static DEVICE_ATTR_RW(enable_sensor);
static struct attribute *enable_sensor_attrs[] = {
&dev_attr_enable_sensor.attr,
NULL,
};
static const struct attribute_group enable_sensor_attr_group = {
.attrs = enable_sensor_attrs,
};
static ssize_t show_value(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
struct hid_sensor_hub_attribute_info *attribute;
int index, usage, field_index;
char name[HID_CUSTOM_NAME_LENGTH];
bool feature = false;
bool input = false;
int value = 0;
if (sscanf(attr->attr.name, "feature-%x-%x-%s", &index, &usage,
name) == 3) {
feature = true;
field_index = index + sensor_inst->input_field_count;
} else if (sscanf(attr->attr.name, "input-%x-%x-%s", &index, &usage,
name) == 3) {
input = true;
field_index = index;
} else
return -EINVAL;
if (!strncmp(name, "value", strlen("value"))) {
u32 report_id;
int ret;
attribute = &sensor_inst->fields[field_index].attribute;
report_id = attribute->report_id;
if (feature) {
u8 values[HID_CUSTOM_MAX_FEATURE_BYTES];
int len = 0;
u64 value = 0;
int i = 0;
ret = sensor_hub_get_feature(sensor_inst->hsdev,
report_id,
index,
sizeof(values), values);
if (ret < 0)
return ret;
while (i < ret) {
if (i + attribute->size > ret) {
len += scnprintf(&buf[len],
PAGE_SIZE - len,
"%d ", values[i]);
break;
}
switch (attribute->size) {
case 2:
value = (u64) *(u16 *)&values[i];
i += attribute->size;
break;
case 4:
value = (u64) *(u32 *)&values[i];
i += attribute->size;
break;
case 8:
value = *(u64 *)&values[i];
i += attribute->size;
break;
default:
value = (u64) values[i];
++i;
break;
}
len += scnprintf(&buf[len], PAGE_SIZE - len,
"%lld ", value);
}
len += scnprintf(&buf[len], PAGE_SIZE - len, "\n");
return len;
} else if (input)
value = sensor_hub_input_attr_get_raw_value(
sensor_inst->hsdev,
sensor_inst->hsdev->usage,
usage, report_id,
SENSOR_HUB_SYNC, false);
} else if (!strncmp(name, "units", strlen("units")))
value = sensor_inst->fields[field_index].attribute.units;
else if (!strncmp(name, "unit-expo", strlen("unit-expo")))
value = sensor_inst->fields[field_index].attribute.unit_expo;
else if (!strncmp(name, "size", strlen("size")))
value = sensor_inst->fields[field_index].attribute.size;
else if (!strncmp(name, "minimum", strlen("minimum")))
value = sensor_inst->fields[field_index].attribute.
logical_minimum;
else if (!strncmp(name, "maximum", strlen("maximum")))
value = sensor_inst->fields[field_index].attribute.
logical_maximum;
else if (!strncmp(name, "name", strlen("name"))) {
struct hid_custom_usage_desc *usage_desc;
usage_desc = bsearch(&usage, hid_custom_usage_desc_table,
ARRAY_SIZE(hid_custom_usage_desc_table),
sizeof(struct hid_custom_usage_desc),
usage_id_cmp);
if (usage_desc)
return snprintf(buf, PAGE_SIZE, "%s\n",
usage_desc->desc);
else
return sprintf(buf, "not-specified\n");
} else
return -EINVAL;
return sprintf(buf, "%d\n", value);
}
static ssize_t store_value(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_sensor_custom *sensor_inst = dev_get_drvdata(dev);
int index, field_index, usage;
char name[HID_CUSTOM_NAME_LENGTH];
int value, ret;
if (sscanf(attr->attr.name, "feature-%x-%x-%s", &index, &usage,
name) == 3) {
field_index = index + sensor_inst->input_field_count;
} else
return -EINVAL;
if (!strncmp(name, "value", strlen("value"))) {
u32 report_id;
if (kstrtoint(buf, 0, &value) != 0)
return -EINVAL;
report_id = sensor_inst->fields[field_index].attribute.
report_id;
ret = sensor_hub_set_feature(sensor_inst->hsdev, report_id,
index, sizeof(value), &value);
if (ret)
return ret;
} else
return -EINVAL;
return count;
}
static int hid_sensor_capture_sample(struct hid_sensor_hub_device *hsdev,
unsigned usage_id, size_t raw_len,
char *raw_data, void *priv)
{
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(priv);
struct hid_sensor_sample header;
/* If any error occurs in a sample, rest of the fields are ignored */
if (sensor_inst->input_skip_sample) {
hid_err(sensor_inst->hsdev->hdev, "Skipped remaining data\n");
return 0;
}
hid_dbg(sensor_inst->hsdev->hdev, "%s received %d of %d\n", __func__,
(int) (sensor_inst->input_report_recd_size + raw_len),
sensor_inst->input_report_size);
if (!test_bit(0, &sensor_inst->misc_opened))
return 0;
if (!sensor_inst->input_report_recd_size) {
int required_size = sizeof(struct hid_sensor_sample) +
sensor_inst->input_report_size;
header.usage_id = hsdev->usage;
header.raw_len = sensor_inst->input_report_size;
header.timestamp = ktime_get_real_ns();
if (kfifo_avail(&sensor_inst->data_fifo) >= required_size) {
kfifo_in(&sensor_inst->data_fifo,
(unsigned char *)&header,
sizeof(header));
} else
sensor_inst->input_skip_sample = true;
}
if (kfifo_avail(&sensor_inst->data_fifo) >= raw_len)
kfifo_in(&sensor_inst->data_fifo, (unsigned char *)raw_data,
raw_len);
sensor_inst->input_report_recd_size += raw_len;
return 0;
}
static int hid_sensor_send_event(struct hid_sensor_hub_device *hsdev,
unsigned usage_id, void *priv)
{
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(priv);
if (!test_bit(0, &sensor_inst->misc_opened))
return 0;
sensor_inst->input_report_recd_size = 0;
sensor_inst->input_skip_sample = false;
wake_up(&sensor_inst->wait);
return 0;
}
static int hid_sensor_custom_add_field(struct hid_sensor_custom *sensor_inst,
int index, int report_type,
struct hid_report *report,
struct hid_field *field)
{
struct hid_sensor_custom_field *sensor_field;
void *fields;
fields = krealloc(sensor_inst->fields,
(sensor_inst->sensor_field_count + 1) *
sizeof(struct hid_sensor_custom_field), GFP_KERNEL);
if (!fields) {
kfree(sensor_inst->fields);
return -ENOMEM;
}
sensor_inst->fields = fields;
sensor_field = &sensor_inst->fields[sensor_inst->sensor_field_count];
sensor_field->attribute.usage_id = sensor_inst->hsdev->usage;
if (field->logical)
sensor_field->attribute.attrib_id = field->logical;
else
sensor_field->attribute.attrib_id = field->usage[0].hid;
sensor_field->attribute.index = index;
sensor_field->attribute.report_id = report->id;
sensor_field->attribute.units = field->unit;
sensor_field->attribute.unit_expo = field->unit_exponent;
sensor_field->attribute.size = (field->report_size / 8);
sensor_field->attribute.logical_minimum = field->logical_minimum;
sensor_field->attribute.logical_maximum = field->logical_maximum;
if (report_type == HID_FEATURE_REPORT)
snprintf(sensor_field->group_name,
sizeof(sensor_field->group_name), "feature-%x-%x",
sensor_field->attribute.index,
sensor_field->attribute.attrib_id);
else if (report_type == HID_INPUT_REPORT) {
snprintf(sensor_field->group_name,
sizeof(sensor_field->group_name),
"input-%x-%x", sensor_field->attribute.index,
sensor_field->attribute.attrib_id);
sensor_inst->input_field_count++;
sensor_inst->input_report_size += (field->report_size *
field->report_count) / 8;
}
memset(&sensor_field->hid_custom_attribute_group, 0,
sizeof(struct attribute_group));
sensor_inst->sensor_field_count++;
return 0;
}
static int hid_sensor_custom_add_fields(struct hid_sensor_custom *sensor_inst,
struct hid_report_enum *report_enum,
int report_type)
{
int i;
int ret;
struct hid_report *report;
struct hid_field *field;
struct hid_sensor_hub_device *hsdev = sensor_inst->hsdev;
list_for_each_entry(report, &report_enum->report_list, list) {
for (i = 0; i < report->maxfield; ++i) {
field = report->field[i];
if (field->maxusage &&
((field->usage[0].collection_index >=
hsdev->start_collection_index) &&
(field->usage[0].collection_index <
hsdev->end_collection_index))) {
ret = hid_sensor_custom_add_field(sensor_inst,
i,
report_type,
report,
field);
if (ret)
return ret;
}
}
}
return 0;
}
static int hid_sensor_custom_add_attributes(struct hid_sensor_custom
*sensor_inst)
{
struct hid_sensor_hub_device *hsdev = sensor_inst->hsdev;
struct hid_device *hdev = hsdev->hdev;
int ret = -1;
int i, j;
for (j = 0; j < HID_REPORT_TYPES; ++j) {
if (j == HID_OUTPUT_REPORT)
continue;
ret = hid_sensor_custom_add_fields(sensor_inst,
&hdev->report_enum[j], j);
if (ret)
return ret;
}
/* Create sysfs attributes */
for (i = 0; i < sensor_inst->sensor_field_count; ++i) {
j = 0;
while (j < HID_CUSTOM_TOTAL_ATTRS &&
hid_custom_attrs[j].name) {
struct device_attribute *device_attr;
device_attr = &sensor_inst->fields[i].sd_attrs[j];
snprintf((char *)&sensor_inst->fields[i].attr_name[j],
HID_CUSTOM_NAME_LENGTH, "%s-%s",
sensor_inst->fields[i].group_name,
hid_custom_attrs[j].name);
sysfs_attr_init(&device_attr->attr);
device_attr->attr.name =
(char *)&sensor_inst->fields[i].attr_name[j];
device_attr->attr.mode = hid_custom_attrs[j].mode;
device_attr->show = show_value;
if (hid_custom_attrs[j].mode & S_IWUSR)
device_attr->store = store_value;
sensor_inst->fields[i].attrs[j] = &device_attr->attr;
++j;
}
sensor_inst->fields[i].attrs[j] = NULL;
sensor_inst->fields[i].hid_custom_attribute_group.attrs =
sensor_inst->fields[i].attrs;
sensor_inst->fields[i].hid_custom_attribute_group.name =
sensor_inst->fields[i].group_name;
ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
&sensor_inst->fields[i].
hid_custom_attribute_group);
if (ret)
break;
/* For power or report field store indexes */
if (sensor_inst->fields[i].attribute.attrib_id ==
HID_USAGE_SENSOR_PROY_POWER_STATE)
sensor_inst->power_state = &sensor_inst->fields[i];
else if (sensor_inst->fields[i].attribute.attrib_id ==
HID_USAGE_SENSOR_PROP_REPORT_STATE)
sensor_inst->report_state = &sensor_inst->fields[i];
}
return ret;
}
static void hid_sensor_custom_remove_attributes(struct hid_sensor_custom *
sensor_inst)
{
int i;
for (i = 0; i < sensor_inst->sensor_field_count; ++i)
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
&sensor_inst->fields[i].
hid_custom_attribute_group);
kfree(sensor_inst->fields);
}
static ssize_t hid_sensor_custom_read(struct file *file, char __user *buf,
size_t count, loff_t *f_ps)
{
struct hid_sensor_custom *sensor_inst;
unsigned int copied;
int ret;
sensor_inst = container_of(file->private_data,
struct hid_sensor_custom, custom_dev);
if (count < sizeof(struct hid_sensor_sample))
return -EINVAL;
do {
if (kfifo_is_empty(&sensor_inst->data_fifo)) {
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
ret = wait_event_interruptible(sensor_inst->wait,
!kfifo_is_empty(&sensor_inst->data_fifo));
if (ret)
return ret;
}
ret = kfifo_to_user(&sensor_inst->data_fifo, buf, count,
&copied);
if (ret)
return ret;
} while (copied == 0);
return copied;
}
static int hid_sensor_custom_release(struct inode *inode, struct file *file)
{
struct hid_sensor_custom *sensor_inst;
sensor_inst = container_of(file->private_data,
struct hid_sensor_custom, custom_dev);
clear_bit(0, &sensor_inst->misc_opened);
return 0;
}
static int hid_sensor_custom_open(struct inode *inode, struct file *file)
{
struct hid_sensor_custom *sensor_inst;
sensor_inst = container_of(file->private_data,
struct hid_sensor_custom, custom_dev);
/* We essentially have single reader and writer */
if (test_and_set_bit(0, &sensor_inst->misc_opened))
return -EBUSY;
return stream_open(inode, file);
}
static __poll_t hid_sensor_custom_poll(struct file *file,
struct poll_table_struct *wait)
{
struct hid_sensor_custom *sensor_inst;
__poll_t mask = 0;
sensor_inst = container_of(file->private_data,
struct hid_sensor_custom, custom_dev);
poll_wait(file, &sensor_inst->wait, wait);
if (!kfifo_is_empty(&sensor_inst->data_fifo))
mask = EPOLLIN | EPOLLRDNORM;
return mask;
}
static const struct file_operations hid_sensor_custom_fops = {
.open = hid_sensor_custom_open,
.read = hid_sensor_custom_read,
.release = hid_sensor_custom_release,
.poll = hid_sensor_custom_poll,
.llseek = noop_llseek,
};
static int hid_sensor_custom_dev_if_add(struct hid_sensor_custom *sensor_inst)
{
int ret;
ret = kfifo_alloc(&sensor_inst->data_fifo, HID_CUSTOM_FIFO_SIZE,
GFP_KERNEL);
if (ret)
return ret;
init_waitqueue_head(&sensor_inst->wait);
sensor_inst->custom_dev.minor = MISC_DYNAMIC_MINOR;
sensor_inst->custom_dev.name = dev_name(&sensor_inst->pdev->dev);
sensor_inst->custom_dev.fops = &hid_sensor_custom_fops,
ret = misc_register(&sensor_inst->custom_dev);
if (ret) {
kfifo_free(&sensor_inst->data_fifo);
return ret;
}
return 0;
}
static void hid_sensor_custom_dev_if_remove(struct hid_sensor_custom
*sensor_inst)
{
wake_up(&sensor_inst->wait);
misc_deregister(&sensor_inst->custom_dev);
kfifo_free(&sensor_inst->data_fifo);
}
/*
* Match a known custom sensor.
* tag and luid is mandatory.
*/
struct hid_sensor_custom_match {
const char *tag;
const char *luid;
const char *model;
const char *manufacturer;
bool check_dmi;
struct dmi_system_id dmi;
};
/*
* Custom sensor properties used for matching.
*/
struct hid_sensor_custom_properties {
u16 serial_num[HID_CUSTOM_MAX_FEATURE_BYTES];
u16 model[HID_CUSTOM_MAX_FEATURE_BYTES];
u16 manufacturer[HID_CUSTOM_MAX_FEATURE_BYTES];
};
static const struct hid_sensor_custom_match hid_sensor_custom_known_table[] = {
/*
* Intel Integrated Sensor Hub (ISH)
*/
{ /* Intel ISH hinge */
.tag = "INT",
.luid = "020B000000000000",
.manufacturer = "INTEL",
},
/*
* Lenovo Intelligent Sensing Solution (LISS)
*/
{ /* ambient light */
.tag = "LISS",
.luid = "0041010200000082",
.model = "STK3X3X Sensor",
.manufacturer = "Vendor 258",
.check_dmi = true,
.dmi.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
}
},
{ /* human presence */
.tag = "LISS",
.luid = "0226000171AC0081",
.model = "VL53L1_HOD Sensor",
.manufacturer = "ST_MICRO",
.check_dmi = true,
.dmi.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
}
},
{}
};
static bool hid_sensor_custom_prop_match_str(const u16 *prop, const char *match,
size_t count)
{
while (count-- && *prop && *match) {
if (*prop != (u16) *match)
return false;
prop++;
match++;
}
return (count == -1) || *prop == (u16)*match;
}
static int hid_sensor_custom_get_prop(struct hid_sensor_hub_device *hsdev,
u32 prop_usage_id, size_t prop_size,
u16 *prop)
{
struct hid_sensor_hub_attribute_info prop_attr = { 0 };
int ret;
memset(prop, 0, prop_size);
ret = sensor_hub_input_get_attribute_info(hsdev, HID_FEATURE_REPORT,
hsdev->usage, prop_usage_id,
&prop_attr);
if (ret < 0)
return ret;
ret = sensor_hub_get_feature(hsdev, prop_attr.report_id,
prop_attr.index, prop_size, prop);
if (ret < 0) {
hid_err(hsdev->hdev, "Failed to get sensor property %08x %d\n",
prop_usage_id, ret);
return ret;
}
return 0;
}
static bool
hid_sensor_custom_do_match(struct hid_sensor_hub_device *hsdev,
const struct hid_sensor_custom_match *match,
const struct hid_sensor_custom_properties *prop)
{
struct dmi_system_id dmi[] = { match->dmi, { 0 } };
if (!hid_sensor_custom_prop_match_str(prop->serial_num, "LUID:", 5) ||
!hid_sensor_custom_prop_match_str(prop->serial_num + 5, match->luid,
HID_CUSTOM_MAX_FEATURE_BYTES - 5))
return false;
if (match->model &&
!hid_sensor_custom_prop_match_str(prop->model, match->model,
HID_CUSTOM_MAX_FEATURE_BYTES))
return false;
if (match->manufacturer &&
!hid_sensor_custom_prop_match_str(prop->manufacturer, match->manufacturer,
HID_CUSTOM_MAX_FEATURE_BYTES))
return false;
if (match->check_dmi && !dmi_check_system(dmi))
return false;
return true;
}
static int
hid_sensor_custom_properties_get(struct hid_sensor_hub_device *hsdev,
struct hid_sensor_custom_properties *prop)
{
int ret;
ret = hid_sensor_custom_get_prop(hsdev,
HID_USAGE_SENSOR_PROP_SERIAL_NUM,
HID_CUSTOM_MAX_FEATURE_BYTES,
prop->serial_num);
if (ret < 0)
return ret;
/*
* Ignore errors on the following model and manufacturer properties.
* Because these are optional, it is not an error if they are missing.
*/
hid_sensor_custom_get_prop(hsdev, HID_USAGE_SENSOR_PROP_MODEL,
HID_CUSTOM_MAX_FEATURE_BYTES,
prop->model);
hid_sensor_custom_get_prop(hsdev, HID_USAGE_SENSOR_PROP_MANUFACTURER,
HID_CUSTOM_MAX_FEATURE_BYTES,
prop->manufacturer);
return 0;
}
static int
hid_sensor_custom_get_known(struct hid_sensor_hub_device *hsdev,
const struct hid_sensor_custom_match **known)
{
int ret;
const struct hid_sensor_custom_match *match =
hid_sensor_custom_known_table;
struct hid_sensor_custom_properties *prop;
prop = kmalloc(sizeof(struct hid_sensor_custom_properties), GFP_KERNEL);
if (!prop)
return -ENOMEM;
ret = hid_sensor_custom_properties_get(hsdev, prop);
if (ret < 0)
goto out;
while (match->tag) {
if (hid_sensor_custom_do_match(hsdev, match, prop)) {
*known = match;
ret = 0;
goto out;
}
match++;
}
ret = -ENODATA;
out:
kfree(prop);
return ret;
}
static struct platform_device *
hid_sensor_register_platform_device(struct platform_device *pdev,
struct hid_sensor_hub_device *hsdev,
const struct hid_sensor_custom_match *match)
{
char real_usage[HID_SENSOR_USAGE_LENGTH] = { 0 };
struct platform_device *custom_pdev;
const char *dev_name;
char *c;
memcpy(real_usage, match->luid, 4);
/* usage id are all lowcase */
for (c = real_usage; *c != '\0'; c++)
*c = tolower(*c);
/* HID-SENSOR-TAG-REAL_USAGE_ID */
dev_name = kasprintf(GFP_KERNEL, "HID-SENSOR-%s-%s",
match->tag, real_usage);
if (!dev_name)
return ERR_PTR(-ENOMEM);
custom_pdev = platform_device_register_data(pdev->dev.parent, dev_name,
PLATFORM_DEVID_AUTO, hsdev,
sizeof(*hsdev));
kfree(dev_name);
return custom_pdev;
}
static int hid_sensor_custom_probe(struct platform_device *pdev)
{
struct hid_sensor_custom *sensor_inst;
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
int ret;
const struct hid_sensor_custom_match *match;
sensor_inst = devm_kzalloc(&pdev->dev, sizeof(*sensor_inst),
GFP_KERNEL);
if (!sensor_inst)
return -ENOMEM;
sensor_inst->callbacks.capture_sample = hid_sensor_capture_sample;
sensor_inst->callbacks.send_event = hid_sensor_send_event;
sensor_inst->callbacks.pdev = pdev;
sensor_inst->hsdev = hsdev;
sensor_inst->pdev = pdev;
mutex_init(&sensor_inst->mutex);
platform_set_drvdata(pdev, sensor_inst);
ret = hid_sensor_custom_get_known(hsdev, &match);
if (!ret) {
sensor_inst->custom_pdev =
hid_sensor_register_platform_device(pdev, hsdev, match);
ret = PTR_ERR_OR_ZERO(sensor_inst->custom_pdev);
if (ret) {
dev_err(&pdev->dev,
"register_platform_device failed\n");
return ret;
}
return 0;
}
ret = sensor_hub_register_callback(hsdev, hsdev->usage,
&sensor_inst->callbacks);
if (ret < 0) {
dev_err(&pdev->dev, "callback reg failed\n");
return ret;
}
ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
&enable_sensor_attr_group);
if (ret)
goto err_remove_callback;
ret = hid_sensor_custom_add_attributes(sensor_inst);
if (ret)
goto err_remove_group;
ret = hid_sensor_custom_dev_if_add(sensor_inst);
if (ret)
goto err_remove_attributes;
return 0;
err_remove_attributes:
hid_sensor_custom_remove_attributes(sensor_inst);
err_remove_group:
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
&enable_sensor_attr_group);
err_remove_callback:
sensor_hub_remove_callback(hsdev, hsdev->usage);
return ret;
}
static int hid_sensor_custom_remove(struct platform_device *pdev)
{
struct hid_sensor_custom *sensor_inst = platform_get_drvdata(pdev);
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
if (sensor_inst->custom_pdev) {
platform_device_unregister(sensor_inst->custom_pdev);
return 0;
}
hid_sensor_custom_dev_if_remove(sensor_inst);
hid_sensor_custom_remove_attributes(sensor_inst);
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
&enable_sensor_attr_group);
sensor_hub_remove_callback(hsdev, hsdev->usage);
return 0;
}
static const struct platform_device_id hid_sensor_custom_ids[] = {
{
.name = "HID-SENSOR-2000e1",
},
{
.name = "HID-SENSOR-2000e2",
},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, hid_sensor_custom_ids);
static struct platform_driver hid_sensor_custom_platform_driver = {
.id_table = hid_sensor_custom_ids,
.driver = {
.name = KBUILD_MODNAME,
},
.probe = hid_sensor_custom_probe,
.remove = hid_sensor_custom_remove,
};
module_platform_driver(hid_sensor_custom_platform_driver);
MODULE_DESCRIPTION("HID Sensor Custom and Generic sensor Driver");
MODULE_AUTHOR("Srinivas Pandruvada <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-sensor-custom.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for SiGma Micro-based keyboards
*
* Copyright (c) 2016 Kinglong Mee
* Copyright (c) 2021 Desmond Lim
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static const __u8 sm_0059_rdesc[] = {
0x05, 0x0c, /* Usage Page (Consumer Devices) 0 */
0x09, 0x01, /* Usage (Consumer Control) 2 */
0xa1, 0x01, /* Collection (Application) 4 */
0x85, 0x01, /* Report ID (1) 6 */
0x19, 0x00, /* Usage Minimum (0) 8 */
0x2a, 0x3c, 0x02, /* Usage Maximum (572) 10 */
0x15, 0x00, /* Logical Minimum (0) 13 */
0x26, 0x3c, 0x02, /* Logical Maximum (572) 15 */
0x95, 0x01, /* Report Count (1) 18 */
0x75, 0x10, /* Report Size (16) 20 */
0x81, 0x00, /* Input (Data,Arr,Abs) 22 */
0xc0, /* End Collection 24 */
0x05, 0x01, /* Usage Page (Generic Desktop) 25 */
0x09, 0x80, /* Usage (System Control) 27 */
0xa1, 0x01, /* Collection (Application) 29 */
0x85, 0x02, /* Report ID (2) 31 */
0x19, 0x81, /* Usage Minimum (129) 33 */
0x29, 0x83, /* Usage Maximum (131) 35 */
0x25, 0x01, /* Logical Maximum (1) 37 */
0x75, 0x01, /* Report Size (1) 39 */
0x95, 0x03, /* Report Count (3) 41 */
0x81, 0x02, /* Input (Data,Var,Abs) 43 */
0x95, 0x05, /* Report Count (5) 45 */
0x81, 0x01, /* Input (Cnst,Arr,Abs) 47 */
0xc0, /* End Collection 49 */
0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) 50 */
0x09, 0x01, /* Usage (Vendor Usage 1) 53 */
0xa1, 0x01, /* Collection (Application) 55 */
0x85, 0x03, /* Report ID (3) 57 */
0x1a, 0xf1, 0x00, /* Usage Minimum (241) 59 */
0x2a, 0xf8, 0x00, /* Usage Maximum (248) 62 */
0x15, 0x00, /* Logical Minimum (0) 65 */
0x25, 0x01, /* Logical Maximum (1) 67 */
0x75, 0x01, /* Report Size (1) 69 */
0x95, 0x08, /* Report Count (8) 71 */
0x81, 0x02, /* Input (Data,Var,Abs) 73 */
0xc0, /* End Collection 75 */
0x05, 0x01, /* Usage Page (Generic Desktop) 76 */
0x09, 0x06, /* Usage (Keyboard) 78 */
0xa1, 0x01, /* Collection (Application) 80 */
0x85, 0x04, /* Report ID (4) 82 */
0x05, 0x07, /* Usage Page (Keyboard) 84 */
0x19, 0xe0, /* Usage Minimum (224) 86 */
0x29, 0xe7, /* Usage Maximum (231) 88 */
0x15, 0x00, /* Logical Minimum (0) 90 */
0x25, 0x01, /* Logical Maximum (1) 92 */
0x75, 0x01, /* Report Size (1) 94 */
0x95, 0x08, /* Report Count (8) 96 */
0x81, 0x00, /* Input (Data,Arr,Abs) 98 */
0x95, 0x30, /* Report Count (48) 100 */
0x75, 0x01, /* Report Size (1) 102 */
0x15, 0x00, /* Logical Minimum (0) 104 */
0x25, 0x01, /* Logical Maximum (1) 106 */
0x05, 0x07, /* Usage Page (Keyboard) 108 */
0x19, 0x00, /* Usage Minimum (0) 110 */
0x29, 0x2f, /* Usage Maximum (47) 112 */
0x81, 0x02, /* Input (Data,Var,Abs) 114 */
0xc0, /* End Collection 116 */
0x05, 0x01, /* Usage Page (Generic Desktop) 117 */
0x09, 0x06, /* Usage (Keyboard) 119 */
0xa1, 0x01, /* Collection (Application) 121 */
0x85, 0x05, /* Report ID (5) 123 */
0x95, 0x38, /* Report Count (56) 125 */
0x75, 0x01, /* Report Size (1) 127 */
0x15, 0x00, /* Logical Minimum (0) 129 */
0x25, 0x01, /* Logical Maximum (1) 131 */
0x05, 0x07, /* Usage Page (Keyboard) 133 */
0x19, 0x30, /* Usage Minimum (48) 135 */
0x29, 0x67, /* Usage Maximum (103) 137 */
0x81, 0x02, /* Input (Data,Var,Abs) 139 */
0xc0, /* End Collection 141 */
0x05, 0x01, /* Usage Page (Generic Desktop) 142 */
0x09, 0x06, /* Usage (Keyboard) 144 */
0xa1, 0x01, /* Collection (Application) 146 */
0x85, 0x06, /* Report ID (6) 148 */
0x95, 0x38, /* Report Count (56) 150 */
0x75, 0x01, /* Report Size (1) 152 */
0x15, 0x00, /* Logical Minimum (0) 154 */
0x25, 0x01, /* Logical Maximum (1) 156 */
0x05, 0x07, /* Usage Page (Keyboard) 158 */
0x19, 0x68, /* Usage Minimum (104) 160 */
0x29, 0x9f, /* Usage Maximum (159) 162 */
0x81, 0x02, /* Input (Data,Var,Abs) 164 */
0xc0, /* End Collection 166 */
};
static __u8 *sm_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == sizeof(sm_0059_rdesc) &&
!memcmp(sm_0059_rdesc, rdesc, *rsize)) {
hid_info(hdev, "Fixing up SiGma Micro report descriptor\n");
rdesc[99] = 0x02;
}
return rdesc;
}
static const struct hid_device_id sm_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SIGMA_MICRO,
USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD2) },
{ }
};
MODULE_DEVICE_TABLE(hid, sm_devices);
static struct hid_driver sm_driver = {
.name = "sigmamicro",
.id_table = sm_devices,
.report_fixup = sm_report_fixup,
};
module_hid_driver(sm_driver);
MODULE_AUTHOR("Kinglong Mee <[email protected]>");
MODULE_AUTHOR("Desmond Lim <[email protected]>");
MODULE_DESCRIPTION("SiGma Micro HID driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-sigmamicro.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021 Hans de Goede <[email protected]>
*
* Driver for the LetSketch / VSON WP9620N drawing tablet.
* This drawing tablet is also sold under other brand names such as Case U,
* presumably this driver will work for all of them. But it has only been
* tested with a LetSketch WP9620N model.
*
* These tablets also work without a special HID driver, but then only part
* of the active area works and both the pad and stylus buttons are hardwired
* to special key-combos. E.g. the 2 stylus buttons send right mouse clicks /
* resp. "e" key presses.
*
* This device has 4 USB interfaces:
*
* Interface 0 EP 0x81 bootclass mouse, rdesc len 18, report id 0x08,
* Application(ff00.0001)
* This interface sends raw event input reports in a custom format, but only
* after doing the special dance from letsketch_probe(). After enabling this
* interface the other 3 interfaces are disabled.
*
* Interface 1 EP 0x82 bootclass mouse, rdesc len 83, report id 0x0a, Tablet
* This interface sends absolute events for the pen, including pressure,
* but only for some part of the active area due to special "aspect ratio"
* correction and only half by default since it assumes it will be used
* with a phone in portraid mode, while using the tablet in landscape mode.
* Also stylus + pad button events are not reported here.
*
* Interface 2 EP 0x83 bootclass keybd, rdesc len 64, report id none, Std Kbd
* This interfaces send various hard-coded key-combos for the pad buttons
* and "e" keypresses for the 2nd stylus button
*
* Interface 3 EP 0x84 bootclass mouse, rdesc len 75, report id 0x01, Std Mouse
* This reports right-click mouse-button events for the 1st stylus button
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/usb.h>
#include <asm/unaligned.h>
#include "hid-ids.h"
#define LETSKETCH_RAW_IF 0
#define LETSKETCH_RAW_DATA_LEN 12
#define LETSKETCH_RAW_REPORT_ID 8
#define LETSKETCH_PAD_BUTTONS 5
#define LETSKETCH_INFO_STR_IDX_BEGIN 0xc8
#define LETSKETCH_INFO_STR_IDX_END 0xca
#define LETSKETCH_GET_STRING_RETRIES 5
struct letsketch_data {
struct hid_device *hdev;
struct input_dev *input_tablet;
struct input_dev *input_tablet_pad;
struct timer_list inrange_timer;
};
static int letsketch_open(struct input_dev *dev)
{
struct letsketch_data *data = input_get_drvdata(dev);
return hid_hw_open(data->hdev);
}
static void letsketch_close(struct input_dev *dev)
{
struct letsketch_data *data = input_get_drvdata(dev);
hid_hw_close(data->hdev);
}
static struct input_dev *letsketch_alloc_input_dev(struct letsketch_data *data)
{
struct input_dev *input;
input = devm_input_allocate_device(&data->hdev->dev);
if (!input)
return NULL;
input->id.bustype = data->hdev->bus;
input->id.vendor = data->hdev->vendor;
input->id.product = data->hdev->product;
input->id.version = data->hdev->bus;
input->phys = data->hdev->phys;
input->uniq = data->hdev->uniq;
input->open = letsketch_open;
input->close = letsketch_close;
input_set_drvdata(input, data);
return input;
}
static int letsketch_setup_input_tablet(struct letsketch_data *data)
{
struct input_dev *input;
input = letsketch_alloc_input_dev(data);
if (!input)
return -ENOMEM;
input_set_abs_params(input, ABS_X, 0, 50800, 0, 0);
input_set_abs_params(input, ABS_Y, 0, 31750, 0, 0);
input_set_abs_params(input, ABS_PRESSURE, 0, 8192, 0, 0);
input_abs_set_res(input, ABS_X, 240);
input_abs_set_res(input, ABS_Y, 225);
input_set_capability(input, EV_KEY, BTN_TOUCH);
input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
input_set_capability(input, EV_KEY, BTN_STYLUS);
input_set_capability(input, EV_KEY, BTN_STYLUS2);
/* All known brands selling this tablet use WP9620[N] as model name */
input->name = "WP9620 Tablet";
data->input_tablet = input;
return input_register_device(data->input_tablet);
}
static int letsketch_setup_input_tablet_pad(struct letsketch_data *data)
{
struct input_dev *input;
int i;
input = letsketch_alloc_input_dev(data);
if (!input)
return -ENOMEM;
for (i = 0; i < LETSKETCH_PAD_BUTTONS; i++)
input_set_capability(input, EV_KEY, BTN_0 + i);
/*
* These are never send on the pad input_dev, but must be set
* on the Pad to make udev / libwacom happy.
*/
input_set_abs_params(input, ABS_X, 0, 1, 0, 0);
input_set_abs_params(input, ABS_Y, 0, 1, 0, 0);
input_set_capability(input, EV_KEY, BTN_STYLUS);
input->name = "WP9620 Pad";
data->input_tablet_pad = input;
return input_register_device(data->input_tablet_pad);
}
static void letsketch_inrange_timeout(struct timer_list *t)
{
struct letsketch_data *data = from_timer(data, t, inrange_timer);
struct input_dev *input = data->input_tablet;
input_report_key(input, BTN_TOOL_PEN, 0);
input_sync(input);
}
static int letsketch_raw_event(struct hid_device *hdev,
struct hid_report *report,
u8 *raw_data, int size)
{
struct letsketch_data *data = hid_get_drvdata(hdev);
struct input_dev *input;
int i;
if (size != LETSKETCH_RAW_DATA_LEN || raw_data[0] != LETSKETCH_RAW_REPORT_ID)
return 0;
switch (raw_data[1] & 0xf0) {
case 0x80: /* Pen data */
input = data->input_tablet;
input_report_key(input, BTN_TOOL_PEN, 1);
input_report_key(input, BTN_TOUCH, raw_data[1] & 0x01);
input_report_key(input, BTN_STYLUS, raw_data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, raw_data[1] & 0x04);
input_report_abs(input, ABS_X,
get_unaligned_le16(raw_data + 2));
input_report_abs(input, ABS_Y,
get_unaligned_le16(raw_data + 4));
input_report_abs(input, ABS_PRESSURE,
get_unaligned_le16(raw_data + 6));
/*
* There is no out of range event, so use a timer for this
* when in range we get an event approx. every 8 ms.
*/
mod_timer(&data->inrange_timer, jiffies + msecs_to_jiffies(100));
break;
case 0xe0: /* Pad data */
input = data->input_tablet_pad;
for (i = 0; i < LETSKETCH_PAD_BUTTONS; i++)
input_report_key(input, BTN_0 + i, raw_data[4] == (i + 1));
break;
default:
hid_warn(data->hdev, "Warning unknown data header: 0x%02x\n",
raw_data[0]);
return 0;
}
input_sync(input);
return 0;
}
/*
* The tablets magic handshake to put it in raw mode relies on getting
* string descriptors. But the firmware is buggy and does not like it if
* we do this too fast. Even if we go slow sometimes the usb_string() call
* fails. Ignore errors and retry it a couple of times if necessary.
*/
static int letsketch_get_string(struct usb_device *udev, int index, char *buf, int size)
{
int i, ret;
for (i = 0; i < LETSKETCH_GET_STRING_RETRIES; i++) {
usleep_range(5000, 7000);
ret = usb_string(udev, index, buf, size);
if (ret > 0)
return 0;
}
dev_err(&udev->dev, "Max retries (%d) exceeded reading string descriptor %d\n",
LETSKETCH_GET_STRING_RETRIES, index);
return ret ? ret : -EIO;
}
static int letsketch_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct device *dev = &hdev->dev;
struct letsketch_data *data;
struct usb_interface *intf;
struct usb_device *udev;
char buf[256];
int i, ret;
if (!hid_is_usb(hdev))
return -ENODEV;
intf = to_usb_interface(hdev->dev.parent);
if (intf->altsetting->desc.bInterfaceNumber != LETSKETCH_RAW_IF)
return -ENODEV; /* Ignore the other interfaces */
udev = interface_to_usbdev(intf);
/*
* Instead of using a set-feature request, or even a custom USB ctrl
* message the tablet needs this elaborate magic reading of USB
* string descriptors to kick it into raw mode. This is what the
* Windows drivers are seen doing in an USB trace under Windows.
*/
for (i = LETSKETCH_INFO_STR_IDX_BEGIN; i <= LETSKETCH_INFO_STR_IDX_END; i++) {
ret = letsketch_get_string(udev, i, buf, sizeof(buf));
if (ret)
return ret;
hid_info(hdev, "Device info: %s\n", buf);
}
for (i = 1; i <= 250; i++) {
ret = letsketch_get_string(udev, i, buf, sizeof(buf));
if (ret)
return ret;
}
ret = letsketch_get_string(udev, 0x64, buf, sizeof(buf));
if (ret)
return ret;
ret = letsketch_get_string(udev, LETSKETCH_INFO_STR_IDX_BEGIN, buf, sizeof(buf));
if (ret)
return ret;
/*
* The tablet should be in raw mode now, end with a final delay before
* doing further IO to the device.
*/
usleep_range(5000, 7000);
ret = hid_parse(hdev);
if (ret)
return ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->hdev = hdev;
timer_setup(&data->inrange_timer, letsketch_inrange_timeout, 0);
hid_set_drvdata(hdev, data);
ret = letsketch_setup_input_tablet(data);
if (ret)
return ret;
ret = letsketch_setup_input_tablet_pad(data);
if (ret)
return ret;
return hid_hw_start(hdev, HID_CONNECT_HIDRAW);
}
static const struct hid_device_id letsketch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LETSKETCH, USB_DEVICE_ID_WP9620N) },
{ }
};
MODULE_DEVICE_TABLE(hid, letsketch_devices);
static struct hid_driver letsketch_driver = {
.name = "letsketch",
.id_table = letsketch_devices,
.probe = letsketch_probe,
.raw_event = letsketch_raw_event,
};
module_hid_driver(letsketch_driver);
MODULE_AUTHOR("Hans de Goede <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-letsketch.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for GreenAsia (Product ID 0x12) based devices
*
* The devices are distributed under various names and the same USB device ID
* can be used in many game controllers.
*
* 0e8f:0012 "GreenAsia Inc. USB Joystick "
* - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
*
* Copyright (c) 2008 Lukasz Lubojanski <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_GREENASIA_FF
struct gaff_device {
struct hid_report *report;
};
static int hid_gaff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct gaff_device *gaff = data;
int left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", left, right);
left = left * 0xfe / 0xffff;
right = right * 0xfe / 0xffff;
gaff->report->field[0]->value[0] = 0x51;
gaff->report->field[0]->value[1] = 0x0;
gaff->report->field[0]->value[2] = right;
gaff->report->field[0]->value[3] = 0;
gaff->report->field[0]->value[4] = left;
gaff->report->field[0]->value[5] = 0;
dbg_hid("running with 0x%02x 0x%02x", left, right);
hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
gaff->report->field[0]->value[0] = 0xfa;
gaff->report->field[0]->value[1] = 0xfe;
gaff->report->field[0]->value[2] = 0x0;
gaff->report->field[0]->value[4] = 0x0;
hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
return 0;
}
static int gaff_init(struct hid_device *hid)
{
struct gaff_device *gaff;
struct hid_report *report;
struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct list_head *report_ptr = report_list;
struct input_dev *dev;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report_ptr = report_ptr->next;
report = list_entry(report_ptr, struct hid_report, list);
if (report->maxfield < 1) {
hid_err(hid, "no fields in the report\n");
return -ENODEV;
}
if (report->field[0]->report_count < 6) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL);
if (!gaff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, gaff, hid_gaff_play);
if (error) {
kfree(gaff);
return error;
}
gaff->report = report;
gaff->report->field[0]->value[0] = 0x51;
gaff->report->field[0]->value[1] = 0x00;
gaff->report->field[0]->value[2] = 0x00;
gaff->report->field[0]->value[3] = 0x00;
hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
gaff->report->field[0]->value[0] = 0xfa;
gaff->report->field[0]->value[1] = 0xfe;
hid_hw_request(hid, gaff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force Feedback for GreenAsia 0x12 devices by Lukasz Lubojanski <[email protected]>\n");
return 0;
}
#else
static inline int gaff_init(struct hid_device *hdev)
{
return 0;
}
#endif
static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
dev_dbg(&hdev->dev, "Greenasia HID hardware probe...");
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
gaff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id ga_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), },
{ }
};
MODULE_DEVICE_TABLE(hid, ga_devices);
static struct hid_driver ga_driver = {
.name = "greenasia",
.id_table = ga_devices,
.probe = ga_probe,
};
module_hid_driver(ga_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-gaff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB HID quirks support for Linux
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby <[email protected]>
* Copyright (c) 2019 Paul Pawlowski <[email protected]>
*/
/*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/leds.h>
#include "hid-ids.h"
#define APPLE_RDESC_JIS BIT(0)
#define APPLE_IGNORE_MOUSE BIT(1)
#define APPLE_HAS_FN BIT(2)
/* BIT(3) reserved, was: APPLE_HIDDEV */
#define APPLE_ISO_TILDE_QUIRK BIT(4)
#define APPLE_MIGHTYMOUSE BIT(5)
#define APPLE_INVERT_HWHEEL BIT(6)
/* BIT(7) reserved, was: APPLE_IGNORE_HIDINPUT */
#define APPLE_NUMLOCK_EMULATION BIT(8)
#define APPLE_RDESC_BATTERY BIT(9)
#define APPLE_BACKLIGHT_CTL BIT(10)
#define APPLE_IS_NON_APPLE BIT(11)
#define APPLE_FLAG_FKEY 0x01
#define HID_COUNTRY_INTERNATIONAL_ISO 13
#define APPLE_BATTERY_TIMEOUT_MS 60000
static unsigned int fnmode = 3;
module_param(fnmode, uint, 0644);
MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
"1 = fkeyslast, 2 = fkeysfirst, [3] = auto)");
static int iso_layout = -1;
module_param(iso_layout, int, 0644);
MODULE_PARM_DESC(iso_layout, "Swap the backtick/tilde and greater-than/less-than keys. "
"([-1] = auto, 0 = disabled, 1 = enabled)");
static unsigned int swap_opt_cmd;
module_param(swap_opt_cmd, uint, 0644);
MODULE_PARM_DESC(swap_opt_cmd, "Swap the Option (\"Alt\") and Command (\"Flag\") keys. "
"(For people who want to keep Windows PC keyboard muscle memory. "
"[0] = as-is, Mac layout. 1 = swapped, Windows layout., 2 = swapped, Swap only left side)");
static unsigned int swap_ctrl_cmd;
module_param(swap_ctrl_cmd, uint, 0644);
MODULE_PARM_DESC(swap_ctrl_cmd, "Swap the Control (\"Ctrl\") and Command (\"Flag\") keys. "
"(For people who are used to Mac shortcuts involving Command instead of Control. "
"[0] = No change. 1 = Swapped.)");
static unsigned int swap_fn_leftctrl;
module_param(swap_fn_leftctrl, uint, 0644);
MODULE_PARM_DESC(swap_fn_leftctrl, "Swap the Fn and left Control keys. "
"(For people who want to keep PC keyboard muscle memory. "
"[0] = as-is, Mac layout, 1 = swapped, PC layout)");
struct apple_non_apple_keyboard {
char *name;
};
struct apple_sc_backlight {
struct led_classdev cdev;
struct hid_device *hdev;
unsigned short backlight_off, backlight_on_min, backlight_on_max;
};
struct apple_sc {
struct hid_device *hdev;
unsigned long quirks;
unsigned int fn_on;
unsigned int fn_found;
DECLARE_BITMAP(pressed_numlock, KEY_CNT);
struct timer_list battery_timer;
struct apple_sc_backlight *backlight;
};
struct apple_key_translation {
u16 from;
u16 to;
u8 flags;
};
static const struct apple_key_translation magic_keyboard_alu_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_NUMLOCK, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation magic_keyboard_2015_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
struct apple_backlight_config_report {
u8 report_id;
u8 version;
u16 backlight_off, backlight_on_min, backlight_on_max;
};
struct apple_backlight_set_report {
u8 report_id;
u8 version;
u16 backlight;
u16 rate;
};
static const struct apple_key_translation apple2021_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_SEARCH, APPLE_FLAG_FKEY },
{ KEY_F5, KEY_MICMUTE, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_SLEEP, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation macbookair_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_EJECTCD, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation macbookpro_no_esc_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_GRAVE, KEY_ESC },
{ KEY_1, KEY_F1 },
{ KEY_2, KEY_F2 },
{ KEY_3, KEY_F3 },
{ KEY_4, KEY_F4 },
{ KEY_5, KEY_F5 },
{ KEY_6, KEY_F6 },
{ KEY_7, KEY_F7 },
{ KEY_8, KEY_F8 },
{ KEY_9, KEY_F9 },
{ KEY_0, KEY_F10 },
{ KEY_MINUS, KEY_F11 },
{ KEY_EQUAL, KEY_F12 },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation macbookpro_dedicated_esc_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_1, KEY_F1 },
{ KEY_2, KEY_F2 },
{ KEY_3, KEY_F3 },
{ KEY_4, KEY_F4 },
{ KEY_5, KEY_F5 },
{ KEY_6, KEY_F6 },
{ KEY_7, KEY_F7 },
{ KEY_8, KEY_F8 },
{ KEY_9, KEY_F9 },
{ KEY_0, KEY_F10 },
{ KEY_MINUS, KEY_F11 },
{ KEY_EQUAL, KEY_F12 },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation apple_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
{ KEY_F5, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation powerbook_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F5, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_NUMLOCK, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_SWITCHVIDEOMODE, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_KBDILLUMTOGGLE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation powerbook_numlock_keys[] = {
{ KEY_J, KEY_KP1 },
{ KEY_K, KEY_KP2 },
{ KEY_L, KEY_KP3 },
{ KEY_U, KEY_KP4 },
{ KEY_I, KEY_KP5 },
{ KEY_O, KEY_KP6 },
{ KEY_7, KEY_KP7 },
{ KEY_8, KEY_KP8 },
{ KEY_9, KEY_KP9 },
{ KEY_M, KEY_KP0 },
{ KEY_DOT, KEY_KPDOT },
{ KEY_SLASH, KEY_KPPLUS },
{ KEY_SEMICOLON, KEY_KPMINUS },
{ KEY_P, KEY_KPASTERISK },
{ KEY_MINUS, KEY_KPEQUAL },
{ KEY_0, KEY_KPSLASH },
{ KEY_F6, KEY_NUMLOCK },
{ KEY_KPENTER, KEY_KPENTER },
{ KEY_BACKSPACE, KEY_BACKSPACE },
{ }
};
static const struct apple_key_translation apple_iso_keyboard[] = {
{ KEY_GRAVE, KEY_102ND },
{ KEY_102ND, KEY_GRAVE },
{ }
};
static const struct apple_key_translation swapped_option_cmd_keys[] = {
{ KEY_LEFTALT, KEY_LEFTMETA },
{ KEY_LEFTMETA, KEY_LEFTALT },
{ KEY_RIGHTALT, KEY_RIGHTMETA },
{ KEY_RIGHTMETA, KEY_RIGHTALT },
{ }
};
static const struct apple_key_translation swapped_option_cmd_left_keys[] = {
{ KEY_LEFTALT, KEY_LEFTMETA },
{ KEY_LEFTMETA, KEY_LEFTALT },
{ }
};
static const struct apple_key_translation swapped_ctrl_cmd_keys[] = {
{ KEY_LEFTCTRL, KEY_LEFTMETA },
{ KEY_LEFTMETA, KEY_LEFTCTRL },
{ KEY_RIGHTCTRL, KEY_RIGHTMETA },
{ KEY_RIGHTMETA, KEY_RIGHTCTRL },
{ }
};
static const struct apple_key_translation swapped_fn_leftctrl_keys[] = {
{ KEY_FN, KEY_LEFTCTRL },
{ KEY_LEFTCTRL, KEY_FN },
{ }
};
static const struct apple_non_apple_keyboard non_apple_keyboards[] = {
{ "SONiX USB DEVICE" },
{ "Keychron" },
{ "AONE" },
{ "GANSS" },
{ "Hailuck" },
};
static bool apple_is_non_apple_keyboard(struct hid_device *hdev)
{
int i;
for (i = 0; i < ARRAY_SIZE(non_apple_keyboards); i++) {
char *non_apple = non_apple_keyboards[i].name;
if (strncmp(hdev->name, non_apple, strlen(non_apple)) == 0)
return true;
}
return false;
}
static inline void apple_setup_key_translation(struct input_dev *input,
const struct apple_key_translation *table)
{
const struct apple_key_translation *trans;
for (trans = table; trans->from; trans++)
set_bit(trans->to, input->keybit);
}
static const struct apple_key_translation *apple_find_translation(
const struct apple_key_translation *table, u16 from)
{
const struct apple_key_translation *trans;
/* Look for the translation */
for (trans = table; trans->from; trans++)
if (trans->from == from)
return trans;
return NULL;
}
static void input_event_with_scancode(struct input_dev *input,
__u8 type, __u16 code, unsigned int hid, __s32 value)
{
if (type == EV_KEY &&
(!test_bit(code, input->key)) == value)
input_event(input, EV_MSC, MSC_SCAN, hid);
input_event(input, type, code, value);
}
static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
struct hid_usage *usage, __s32 value)
{
struct apple_sc *asc = hid_get_drvdata(hid);
const struct apple_key_translation *trans, *table;
bool do_translate;
u16 code = usage->code;
unsigned int real_fnmode;
if (fnmode == 3) {
real_fnmode = (asc->quirks & APPLE_IS_NON_APPLE) ? 2 : 1;
} else {
real_fnmode = fnmode;
}
if (swap_fn_leftctrl) {
trans = apple_find_translation(swapped_fn_leftctrl_keys, code);
if (trans)
code = trans->to;
}
if (iso_layout > 0 || (iso_layout < 0 && (asc->quirks & APPLE_ISO_TILDE_QUIRK) &&
hid->country == HID_COUNTRY_INTERNATIONAL_ISO)) {
trans = apple_find_translation(apple_iso_keyboard, code);
if (trans)
code = trans->to;
}
if (swap_opt_cmd) {
if (swap_opt_cmd == 2)
trans = apple_find_translation(swapped_option_cmd_left_keys, code);
else
trans = apple_find_translation(swapped_option_cmd_keys, code);
if (trans)
code = trans->to;
}
if (swap_ctrl_cmd) {
trans = apple_find_translation(swapped_ctrl_cmd_keys, code);
if (trans)
code = trans->to;
}
if (code == KEY_FN)
asc->fn_on = !!value;
if (real_fnmode) {
if (hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO ||
hid->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS)
table = magic_keyboard_alu_fn_keys;
else if (hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015 ||
hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015)
table = magic_keyboard_2015_fn_keys;
else if (hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021 ||
hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021 ||
hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021)
table = apple2021_fn_keys;
else if (hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J132 ||
hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J680 ||
hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J213)
table = macbookpro_no_esc_fn_keys;
else if (hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J214K ||
hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J223 ||
hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J152F)
table = macbookpro_dedicated_esc_fn_keys;
else if (hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J140K ||
hid->product == USB_DEVICE_ID_APPLE_WELLSPRINGT2_J230K)
table = apple_fn_keys;
else if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS)
table = macbookair_fn_keys;
else if (hid->product < 0x21d || hid->product >= 0x300)
table = powerbook_fn_keys;
else
table = apple_fn_keys;
trans = apple_find_translation(table, code);
if (trans) {
bool from_is_set = test_bit(trans->from, input->key);
bool to_is_set = test_bit(trans->to, input->key);
if (from_is_set)
code = trans->from;
else if (to_is_set)
code = trans->to;
if (!(from_is_set || to_is_set)) {
if (trans->flags & APPLE_FLAG_FKEY) {
switch (real_fnmode) {
case 1:
do_translate = !asc->fn_on;
break;
case 2:
do_translate = asc->fn_on;
break;
default:
/* should never happen */
do_translate = false;
}
} else {
do_translate = asc->fn_on;
}
if (do_translate)
code = trans->to;
}
}
if (asc->quirks & APPLE_NUMLOCK_EMULATION &&
(test_bit(code, asc->pressed_numlock) ||
test_bit(LED_NUML, input->led))) {
trans = apple_find_translation(powerbook_numlock_keys, code);
if (trans) {
if (value)
set_bit(code, asc->pressed_numlock);
else
clear_bit(code, asc->pressed_numlock);
code = trans->to;
}
}
}
if (usage->code != code) {
input_event_with_scancode(input, usage->type, code, usage->hid, value);
return 1;
}
return 0;
}
static int apple_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
if ((asc->quirks & APPLE_INVERT_HWHEEL) &&
usage->code == REL_HWHEEL) {
input_event_with_scancode(field->hidinput->input, usage->type,
usage->code, usage->hid, -value);
return 1;
}
if ((asc->quirks & APPLE_HAS_FN) &&
hidinput_apple_event(hdev, field->hidinput->input,
usage, value))
return 1;
return 0;
}
static int apple_fetch_battery(struct hid_device *hdev)
{
#ifdef CONFIG_HID_BATTERY_STRENGTH
struct apple_sc *asc = hid_get_drvdata(hdev);
struct hid_report_enum *report_enum;
struct hid_report *report;
if (!(asc->quirks & APPLE_RDESC_BATTERY) || !hdev->battery)
return -1;
report_enum = &hdev->report_enum[hdev->battery_report_type];
report = report_enum->report_id_hash[hdev->battery_report_id];
if (!report || report->maxfield < 1)
return -1;
if (hdev->battery_capacity == hdev->battery_max)
return -1;
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
return 0;
#else
return -1;
#endif
}
static void apple_battery_timer_tick(struct timer_list *t)
{
struct apple_sc *asc = from_timer(asc, t, battery_timer);
struct hid_device *hdev = asc->hdev;
if (apple_fetch_battery(hdev) == 0) {
mod_timer(&asc->battery_timer,
jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS));
}
}
/*
* MacBook JIS keyboard has wrong logical maximum
* Magic Keyboard JIS has wrong logical maximum
*/
static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if(*rsize >=71 && rdesc[70] == 0x65 && rdesc[64] == 0x65) {
hid_info(hdev,
"fixing up Magic Keyboard JIS report descriptor\n");
rdesc[64] = rdesc[70] = 0xe7;
}
if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
rdesc[53] == 0x65 && rdesc[59] == 0x65) {
hid_info(hdev,
"fixing up MacBook JIS keyboard report descriptor\n");
rdesc[53] = rdesc[59] = 0xe7;
}
/*
* Change the usage from:
* 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1) 0
* 0x09, 0x0b, // Usage (Vendor Usage 0x0b) 3
* To:
* 0x05, 0x01, // Usage Page (Generic Desktop) 0
* 0x09, 0x06, // Usage (Keyboard) 2
*/
if ((asc->quirks & APPLE_RDESC_BATTERY) && *rsize == 83 &&
rdesc[46] == 0x84 && rdesc[58] == 0x85) {
hid_info(hdev,
"fixing up Magic Keyboard battery report descriptor\n");
*rsize = *rsize - 1;
rdesc = kmemdup(rdesc + 1, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
rdesc[0] = 0x05;
rdesc[1] = 0x01;
rdesc[2] = 0x09;
rdesc[3] = 0x06;
}
return rdesc;
}
static void apple_setup_input(struct input_dev *input)
{
set_bit(KEY_NUMLOCK, input->keybit);
/* Enable all needed keys */
apple_setup_key_translation(input, apple_fn_keys);
apple_setup_key_translation(input, powerbook_fn_keys);
apple_setup_key_translation(input, powerbook_numlock_keys);
apple_setup_key_translation(input, apple_iso_keyboard);
apple_setup_key_translation(input, magic_keyboard_alu_fn_keys);
apple_setup_key_translation(input, magic_keyboard_2015_fn_keys);
apple_setup_key_translation(input, apple2021_fn_keys);
apple_setup_key_translation(input, macbookpro_no_esc_fn_keys);
apple_setup_key_translation(input, macbookpro_dedicated_esc_fn_keys);
}
static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if (usage->hid == (HID_UP_CUSTOM | 0x0003) ||
usage->hid == (HID_UP_MSVENDOR | 0x0003) ||
usage->hid == (HID_UP_HPVENDOR2 | 0x0003)) {
/* The fn key on Apple USB keyboards */
set_bit(EV_REP, hi->input->evbit);
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
asc->fn_found = true;
apple_setup_input(hi->input);
return 1;
}
/* we want the hid layer to go through standard path (set and ignore) */
return 0;
}
static int apple_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if (asc->quirks & APPLE_MIGHTYMOUSE) {
if (usage->hid == HID_GD_Z)
hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
else if (usage->code == BTN_1)
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_2);
else if (usage->code == BTN_2)
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_1);
}
return 0;
}
static int apple_input_configured(struct hid_device *hdev,
struct hid_input *hidinput)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
asc->quirks &= ~APPLE_HAS_FN;
}
if (apple_is_non_apple_keyboard(hdev)) {
hid_info(hdev, "Non-apple keyboard detected; function keys will default to fnmode=2 behavior\n");
asc->quirks |= APPLE_IS_NON_APPLE;
}
return 0;
}
static bool apple_backlight_check_support(struct hid_device *hdev)
{
int i;
unsigned int hid;
struct hid_report *report;
list_for_each_entry(report, &hdev->report_enum[HID_INPUT_REPORT].report_list, list) {
for (i = 0; i < report->maxfield; i++) {
hid = report->field[i]->usage->hid;
if ((hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR && (hid & HID_USAGE) == 0xf)
return true;
}
}
return false;
}
static int apple_backlight_set(struct hid_device *hdev, u16 value, u16 rate)
{
int ret = 0;
struct apple_backlight_set_report *rep;
rep = kmalloc(sizeof(*rep), GFP_KERNEL);
if (rep == NULL)
return -ENOMEM;
rep->report_id = 0xB0;
rep->version = 1;
rep->backlight = value;
rep->rate = rate;
ret = hid_hw_raw_request(hdev, 0xB0u, (u8 *) rep, sizeof(*rep),
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
kfree(rep);
return ret;
}
static int apple_backlight_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct apple_sc_backlight *backlight = container_of(led_cdev,
struct apple_sc_backlight, cdev);
return apple_backlight_set(backlight->hdev, brightness, 0);
}
static int apple_backlight_init(struct hid_device *hdev)
{
int ret;
struct apple_sc *asc = hid_get_drvdata(hdev);
struct apple_backlight_config_report *rep;
if (!apple_backlight_check_support(hdev))
return -EINVAL;
rep = kmalloc(0x200, GFP_KERNEL);
if (rep == NULL)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, 0xBFu, (u8 *) rep, sizeof(*rep),
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "backlight request failed: %d\n", ret);
goto cleanup_and_exit;
}
if (ret < 8 || rep->version != 1) {
hid_err(hdev, "backlight config struct: bad version %i\n", rep->version);
ret = -EINVAL;
goto cleanup_and_exit;
}
hid_dbg(hdev, "backlight config: off=%u, on_min=%u, on_max=%u\n",
rep->backlight_off, rep->backlight_on_min, rep->backlight_on_max);
asc->backlight = devm_kzalloc(&hdev->dev, sizeof(*asc->backlight), GFP_KERNEL);
if (!asc->backlight) {
ret = -ENOMEM;
goto cleanup_and_exit;
}
asc->backlight->hdev = hdev;
asc->backlight->cdev.name = "apple::kbd_backlight";
asc->backlight->cdev.max_brightness = rep->backlight_on_max;
asc->backlight->cdev.brightness_set_blocking = apple_backlight_led_set;
ret = apple_backlight_set(hdev, 0, 0);
if (ret < 0) {
hid_err(hdev, "backlight set request failed: %d\n", ret);
goto cleanup_and_exit;
}
ret = devm_led_classdev_register(&hdev->dev, &asc->backlight->cdev);
cleanup_and_exit:
kfree(rep);
return ret;
}
static int apple_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct apple_sc *asc;
int ret;
asc = devm_kzalloc(&hdev->dev, sizeof(*asc), GFP_KERNEL);
if (asc == NULL) {
hid_err(hdev, "can't alloc apple descriptor\n");
return -ENOMEM;
}
asc->hdev = hdev;
asc->quirks = quirks;
hid_set_drvdata(hdev, asc);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
timer_setup(&asc->battery_timer, apple_battery_timer_tick, 0);
mod_timer(&asc->battery_timer,
jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS));
apple_fetch_battery(hdev);
if (quirks & APPLE_BACKLIGHT_CTL)
apple_backlight_init(hdev);
return 0;
}
static void apple_remove(struct hid_device *hdev)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
del_timer_sync(&asc->battery_timer);
hid_hw_stop(hdev);
}
static const struct hid_device_id apple_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE),
.driver_data = APPLE_MIGHTYMOUSE | APPLE_INVERT_HWHEEL },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO),
.driver_data = APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS),
.driver_data = APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J140K),
.driver_data = APPLE_HAS_FN | APPLE_BACKLIGHT_CTL | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J132),
.driver_data = APPLE_HAS_FN | APPLE_BACKLIGHT_CTL | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J680),
.driver_data = APPLE_HAS_FN | APPLE_BACKLIGHT_CTL | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J213),
.driver_data = APPLE_HAS_FN | APPLE_BACKLIGHT_CTL | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J214K),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J223),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J230K),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J152F),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_TILDE_QUIRK },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
{ }
};
MODULE_DEVICE_TABLE(hid, apple_devices);
static struct hid_driver apple_driver = {
.name = "apple",
.id_table = apple_devices,
.report_fixup = apple_report_fixup,
.probe = apple_probe,
.remove = apple_remove,
.event = apple_event,
.input_mapping = apple_input_mapping,
.input_mapped = apple_input_mapped,
.input_configured = apple_input_configured,
};
module_hid_driver(apple_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-apple.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some cherry "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* Cherry Cymotion keyboard have an invalid HID report descriptor,
* that needs fixing before we can parse it.
*/
static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n");
rdesc[11] = rdesc[16] = 0xff;
rdesc[12] = rdesc[17] = 0x03;
}
return rdesc;
}
#define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x301: ch_map_key_clear(KEY_PROG1); break;
case 0x302: ch_map_key_clear(KEY_PROG2); break;
case 0x303: ch_map_key_clear(KEY_PROG3); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id ch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
{ }
};
MODULE_DEVICE_TABLE(hid, ch_devices);
static struct hid_driver ch_driver = {
.name = "cherry",
.id_table = ch_devices,
.report_fixup = ch_report_fixup,
.input_mapping = ch_input_mapping,
};
module_hid_driver(ch_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-cherry.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Elo Accutouch touchscreens
*
* Copyright (c) 2016, Collabora Ltd.
* Copyright (c) 2016, General Electric Company
*
* based on hid-penmount.c
* Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
*/
/*
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static int accutouch_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
return 1;
}
return 0;
}
static const struct hid_device_id accutouch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_ACCUTOUCH_2216) },
{ }
};
MODULE_DEVICE_TABLE(hid, accutouch_devices);
static struct hid_driver accutouch_driver = {
.name = "hid-accutouch",
.id_table = accutouch_devices,
.input_mapping = accutouch_input_mapping,
};
module_hid_driver(accutouch_driver);
MODULE_AUTHOR("Martyn Welch <[email protected]");
MODULE_DESCRIPTION("Elo Accutouch HID TouchScreen driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-accutouch.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HIDPP protocol for Logitech receivers
*
* Copyright (c) 2011 Logitech (c)
* Copyright (c) 2012-2013 Google (c)
* Copyright (c) 2013-2014 Red Hat Inc.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
#include <linux/kfifo.h>
#include <linux/input/mt.h>
#include <linux/workqueue.h>
#include <linux/atomic.h>
#include <linux/fixp-arith.h>
#include <asm/unaligned.h>
#include "usbhid/usbhid.h"
#include "hid-ids.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
MODULE_AUTHOR("Nestor Lopez Casado <[email protected]>");
MODULE_AUTHOR("Bastien Nocera <[email protected]>");
static bool disable_tap_to_click;
module_param(disable_tap_to_click, bool, 0644);
MODULE_PARM_DESC(disable_tap_to_click,
"Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently).");
/* Define a non-zero software ID to identify our own requests */
#define LINUX_KERNEL_SW_ID 0x01
#define REPORT_ID_HIDPP_SHORT 0x10
#define REPORT_ID_HIDPP_LONG 0x11
#define REPORT_ID_HIDPP_VERY_LONG 0x12
#define HIDPP_REPORT_SHORT_LENGTH 7
#define HIDPP_REPORT_LONG_LENGTH 20
#define HIDPP_REPORT_VERY_LONG_MAX_LENGTH 64
#define HIDPP_REPORT_SHORT_SUPPORTED BIT(0)
#define HIDPP_REPORT_LONG_SUPPORTED BIT(1)
#define HIDPP_REPORT_VERY_LONG_SUPPORTED BIT(2)
#define HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS 0x03
#define HIDPP_SUB_ID_ROLLER 0x05
#define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
#define HIDPP_SUB_ID_USER_IFACE_EVENT 0x08
#define HIDPP_USER_IFACE_EVENT_ENCRYPTION_KEY_LOST BIT(5)
#define HIDPP_QUIRK_CLASS_WTP BIT(0)
#define HIDPP_QUIRK_CLASS_M560 BIT(1)
#define HIDPP_QUIRK_CLASS_K400 BIT(2)
#define HIDPP_QUIRK_CLASS_G920 BIT(3)
#define HIDPP_QUIRK_CLASS_K750 BIT(4)
/* bits 2..20 are reserved for classes */
/* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */
#define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22)
#define HIDPP_QUIRK_DELAYED_INIT BIT(23)
#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
#define HIDPP_QUIRK_UNIFYING BIT(25)
#define HIDPP_QUIRK_HIDPP_WHEELS BIT(26)
#define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(27)
#define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(28)
#define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(29)
#define HIDPP_QUIRK_WIRELESS_STATUS BIT(30)
/* These are just aliases for now */
#define HIDPP_QUIRK_KBD_SCROLL_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
#define HIDPP_QUIRK_KBD_ZOOM_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
/* Convenience constant to check for any high-res support. */
#define HIDPP_CAPABILITY_HI_RES_SCROLL (HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL | \
HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL | \
HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL)
#define HIDPP_CAPABILITY_HIDPP10_BATTERY BIT(0)
#define HIDPP_CAPABILITY_HIDPP20_BATTERY BIT(1)
#define HIDPP_CAPABILITY_BATTERY_MILEAGE BIT(2)
#define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS BIT(3)
#define HIDPP_CAPABILITY_BATTERY_VOLTAGE BIT(4)
#define HIDPP_CAPABILITY_BATTERY_PERCENTAGE BIT(5)
#define HIDPP_CAPABILITY_UNIFIED_BATTERY BIT(6)
#define HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL BIT(7)
#define HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL BIT(8)
#define HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL BIT(9)
#define HIDPP_CAPABILITY_ADC_MEASUREMENT BIT(10)
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
/*
* There are two hidpp protocols in use, the first version hidpp10 is known
* as register access protocol or RAP, the second version hidpp20 is known as
* feature access protocol or FAP
*
* Most older devices (including the Unifying usb receiver) use the RAP protocol
* where as most newer devices use the FAP protocol. Both protocols are
* compatible with the underlying transport, which could be usb, Unifiying, or
* bluetooth. The message lengths are defined by the hid vendor specific report
* descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and
* the HIDPP_LONG report type (total message length 20 bytes)
*
* The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG
* messages. The Unifying receiver itself responds to RAP messages (device index
* is 0xFF for the receiver), and all messages (short or long) with a device
* index between 1 and 6 are passed untouched to the corresponding paired
* Unifying device.
*
* The paired device can be RAP or FAP, it will receive the message untouched
* from the Unifiying receiver.
*/
struct fap {
u8 feature_index;
u8 funcindex_clientid;
u8 params[HIDPP_REPORT_VERY_LONG_MAX_LENGTH - 4U];
};
struct rap {
u8 sub_id;
u8 reg_address;
u8 params[HIDPP_REPORT_VERY_LONG_MAX_LENGTH - 4U];
};
struct hidpp_report {
u8 report_id;
u8 device_index;
union {
struct fap fap;
struct rap rap;
u8 rawbytes[sizeof(struct fap)];
};
} __packed;
struct hidpp_battery {
u8 feature_index;
u8 solar_feature_index;
u8 voltage_feature_index;
u8 adc_measurement_feature_index;
struct power_supply_desc desc;
struct power_supply *ps;
char name[64];
int status;
int capacity;
int level;
int voltage;
int charge_type;
bool online;
u8 supported_levels_1004;
};
/**
* struct hidpp_scroll_counter - Utility class for processing high-resolution
* scroll events.
* @dev: the input device for which events should be reported.
* @wheel_multiplier: the scalar multiplier to be applied to each wheel event
* @remainder: counts the number of high-resolution units moved since the last
* low-resolution event (REL_WHEEL or REL_HWHEEL) was sent. Should
* only be used by class methods.
* @direction: direction of last movement (1 or -1)
* @last_time: last event time, used to reset remainder after inactivity
*/
struct hidpp_scroll_counter {
int wheel_multiplier;
int remainder;
int direction;
unsigned long long last_time;
};
struct hidpp_device {
struct hid_device *hid_dev;
struct input_dev *input;
struct mutex send_mutex;
void *send_receive_buf;
char *name; /* will never be NULL and should not be freed */
wait_queue_head_t wait;
int very_long_report_length;
bool answer_available;
u8 protocol_major;
u8 protocol_minor;
void *private_data;
struct work_struct work;
struct kfifo delayed_work_fifo;
atomic_t connected;
struct input_dev *delayed_input;
unsigned long quirks;
unsigned long capabilities;
u8 supported_reports;
struct hidpp_battery battery;
struct hidpp_scroll_counter vertical_wheel_counter;
u8 wireless_feature_index;
};
/* HID++ 1.0 error codes */
#define HIDPP_ERROR 0x8f
#define HIDPP_ERROR_SUCCESS 0x00
#define HIDPP_ERROR_INVALID_SUBID 0x01
#define HIDPP_ERROR_INVALID_ADRESS 0x02
#define HIDPP_ERROR_INVALID_VALUE 0x03
#define HIDPP_ERROR_CONNECT_FAIL 0x04
#define HIDPP_ERROR_TOO_MANY_DEVICES 0x05
#define HIDPP_ERROR_ALREADY_EXISTS 0x06
#define HIDPP_ERROR_BUSY 0x07
#define HIDPP_ERROR_UNKNOWN_DEVICE 0x08
#define HIDPP_ERROR_RESOURCE_ERROR 0x09
#define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a
#define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b
#define HIDPP_ERROR_WRONG_PIN_CODE 0x0c
/* HID++ 2.0 error codes */
#define HIDPP20_ERROR_NO_ERROR 0x00
#define HIDPP20_ERROR_UNKNOWN 0x01
#define HIDPP20_ERROR_INVALID_ARGS 0x02
#define HIDPP20_ERROR_OUT_OF_RANGE 0x03
#define HIDPP20_ERROR_HW_ERROR 0x04
#define HIDPP20_ERROR_NOT_ALLOWED 0x05
#define HIDPP20_ERROR_INVALID_FEATURE_INDEX 0x06
#define HIDPP20_ERROR_INVALID_FUNCTION_ID 0x07
#define HIDPP20_ERROR_BUSY 0x08
#define HIDPP20_ERROR_UNSUPPORTED 0x09
#define HIDPP20_ERROR 0xff
static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
static int __hidpp_send_report(struct hid_device *hdev,
struct hidpp_report *hidpp_report)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
int fields_count, ret;
switch (hidpp_report->report_id) {
case REPORT_ID_HIDPP_SHORT:
fields_count = HIDPP_REPORT_SHORT_LENGTH;
break;
case REPORT_ID_HIDPP_LONG:
fields_count = HIDPP_REPORT_LONG_LENGTH;
break;
case REPORT_ID_HIDPP_VERY_LONG:
fields_count = hidpp->very_long_report_length;
break;
default:
return -ENODEV;
}
/*
* set the device_index as the receiver, it will be overwritten by
* hid_hw_request if needed
*/
hidpp_report->device_index = 0xff;
if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) {
ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count);
} else {
ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
(u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
HID_REQ_SET_REPORT);
}
return ret == fields_count ? 0 : -1;
}
/*
* Effectively send the message to the device, waiting for its answer.
*
* Must be called with hidpp->send_mutex locked
*
* Same return protocol than hidpp_send_message_sync():
* - success on 0
* - negative error means transport error
* - positive value means protocol error
*/
static int __do_hidpp_send_message_sync(struct hidpp_device *hidpp,
struct hidpp_report *message,
struct hidpp_report *response)
{
int ret;
__must_hold(&hidpp->send_mutex);
hidpp->send_receive_buf = response;
hidpp->answer_available = false;
/*
* So that we can later validate the answer when it arrives
* in hidpp_raw_event
*/
*response = *message;
ret = __hidpp_send_report(hidpp->hid_dev, message);
if (ret) {
dbg_hid("__hidpp_send_report returned err: %d\n", ret);
memset(response, 0, sizeof(struct hidpp_report));
return ret;
}
if (!wait_event_timeout(hidpp->wait, hidpp->answer_available,
5*HZ)) {
dbg_hid("%s:timeout waiting for response\n", __func__);
memset(response, 0, sizeof(struct hidpp_report));
return -ETIMEDOUT;
}
if (response->report_id == REPORT_ID_HIDPP_SHORT &&
response->rap.sub_id == HIDPP_ERROR) {
ret = response->rap.params[1];
dbg_hid("%s:got hidpp error %02X\n", __func__, ret);
return ret;
}
if ((response->report_id == REPORT_ID_HIDPP_LONG ||
response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
response->fap.feature_index == HIDPP20_ERROR) {
ret = response->fap.params[1];
dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
return ret;
}
return 0;
}
/*
* hidpp_send_message_sync() returns 0 in case of success, and something else
* in case of a failure.
*
* See __do_hidpp_send_message_sync() for a detailed explanation of the returned
* value.
*/
static int hidpp_send_message_sync(struct hidpp_device *hidpp,
struct hidpp_report *message,
struct hidpp_report *response)
{
int ret;
int max_retries = 3;
mutex_lock(&hidpp->send_mutex);
do {
ret = __do_hidpp_send_message_sync(hidpp, message, response);
if (ret != HIDPP20_ERROR_BUSY)
break;
dbg_hid("%s:got busy hidpp 2.0 error %02X, retrying\n", __func__, ret);
} while (--max_retries);
mutex_unlock(&hidpp->send_mutex);
return ret;
}
/*
* hidpp_send_fap_command_sync() returns 0 in case of success, and something else
* in case of a failure.
*
* See __do_hidpp_send_message_sync() for a detailed explanation of the returned
* value.
*/
static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count,
struct hidpp_report *response)
{
struct hidpp_report *message;
int ret;
if (param_count > sizeof(message->fap.params)) {
hid_dbg(hidpp->hid_dev,
"Invalid number of parameters passed to command (%d != %llu)\n",
param_count,
(unsigned long long) sizeof(message->fap.params));
return -EINVAL;
}
message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
if (!message)
return -ENOMEM;
if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4))
message->report_id = REPORT_ID_HIDPP_VERY_LONG;
else
message->report_id = REPORT_ID_HIDPP_LONG;
message->fap.feature_index = feat_index;
message->fap.funcindex_clientid = funcindex_clientid | LINUX_KERNEL_SW_ID;
memcpy(&message->fap.params, params, param_count);
ret = hidpp_send_message_sync(hidpp, message, response);
kfree(message);
return ret;
}
/*
* hidpp_send_rap_command_sync() returns 0 in case of success, and something else
* in case of a failure.
*
* See __do_hidpp_send_message_sync() for a detailed explanation of the returned
* value.
*/
static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count,
struct hidpp_report *response)
{
struct hidpp_report *message;
int ret, max_count;
/* Send as long report if short reports are not supported. */
if (report_id == REPORT_ID_HIDPP_SHORT &&
!(hidpp_dev->supported_reports & HIDPP_REPORT_SHORT_SUPPORTED))
report_id = REPORT_ID_HIDPP_LONG;
switch (report_id) {
case REPORT_ID_HIDPP_SHORT:
max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
break;
case REPORT_ID_HIDPP_LONG:
max_count = HIDPP_REPORT_LONG_LENGTH - 4;
break;
case REPORT_ID_HIDPP_VERY_LONG:
max_count = hidpp_dev->very_long_report_length - 4;
break;
default:
return -EINVAL;
}
if (param_count > max_count)
return -EINVAL;
message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
if (!message)
return -ENOMEM;
message->report_id = report_id;
message->rap.sub_id = sub_id;
message->rap.reg_address = reg_address;
memcpy(&message->rap.params, params, param_count);
ret = hidpp_send_message_sync(hidpp_dev, message, response);
kfree(message);
return ret;
}
static void delayed_work_cb(struct work_struct *work)
{
struct hidpp_device *hidpp = container_of(work, struct hidpp_device,
work);
hidpp_connect_event(hidpp);
}
static inline bool hidpp_match_answer(struct hidpp_report *question,
struct hidpp_report *answer)
{
return (answer->fap.feature_index == question->fap.feature_index) &&
(answer->fap.funcindex_clientid == question->fap.funcindex_clientid);
}
static inline bool hidpp_match_error(struct hidpp_report *question,
struct hidpp_report *answer)
{
return ((answer->rap.sub_id == HIDPP_ERROR) ||
(answer->fap.feature_index == HIDPP20_ERROR)) &&
(answer->fap.funcindex_clientid == question->fap.feature_index) &&
(answer->fap.params[0] == question->fap.funcindex_clientid);
}
static inline bool hidpp_report_is_connect_event(struct hidpp_device *hidpp,
struct hidpp_report *report)
{
return (hidpp->wireless_feature_index &&
(report->fap.feature_index == hidpp->wireless_feature_index)) ||
((report->report_id == REPORT_ID_HIDPP_SHORT) &&
(report->rap.sub_id == 0x41));
}
/*
* hidpp_prefix_name() prefixes the current given name with "Logitech ".
*/
static void hidpp_prefix_name(char **name, int name_length)
{
#define PREFIX_LENGTH 9 /* "Logitech " */
int new_length;
char *new_name;
if (name_length > PREFIX_LENGTH &&
strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
/* The prefix has is already in the name */
return;
new_length = PREFIX_LENGTH + name_length;
new_name = kzalloc(new_length, GFP_KERNEL);
if (!new_name)
return;
snprintf(new_name, new_length, "Logitech %s", *name);
kfree(*name);
*name = new_name;
}
/*
* Updates the USB wireless_status based on whether the headset
* is turned on and reachable.
*/
static void hidpp_update_usb_wireless_status(struct hidpp_device *hidpp)
{
struct hid_device *hdev = hidpp->hid_dev;
struct usb_interface *intf;
if (!(hidpp->quirks & HIDPP_QUIRK_WIRELESS_STATUS))
return;
if (!hid_is_usb(hdev))
return;
intf = to_usb_interface(hdev->dev.parent);
usb_set_wireless_status(intf, hidpp->battery.online ?
USB_WIRELESS_STATUS_CONNECTED :
USB_WIRELESS_STATUS_DISCONNECTED);
}
/**
* hidpp_scroll_counter_handle_scroll() - Send high- and low-resolution scroll
* events given a high-resolution wheel
* movement.
* @input_dev: Pointer to the input device
* @counter: a hid_scroll_counter struct describing the wheel.
* @hi_res_value: the movement of the wheel, in the mouse's high-resolution
* units.
*
* Given a high-resolution movement, this function converts the movement into
* fractions of 120 and emits high-resolution scroll events for the input
* device. It also uses the multiplier from &struct hid_scroll_counter to
* emit low-resolution scroll events when appropriate for
* backwards-compatibility with userspace input libraries.
*/
static void hidpp_scroll_counter_handle_scroll(struct input_dev *input_dev,
struct hidpp_scroll_counter *counter,
int hi_res_value)
{
int low_res_value, remainder, direction;
unsigned long long now, previous;
hi_res_value = hi_res_value * 120/counter->wheel_multiplier;
input_report_rel(input_dev, REL_WHEEL_HI_RES, hi_res_value);
remainder = counter->remainder;
direction = hi_res_value > 0 ? 1 : -1;
now = sched_clock();
previous = counter->last_time;
counter->last_time = now;
/*
* Reset the remainder after a period of inactivity or when the
* direction changes. This prevents the REL_WHEEL emulation point
* from sliding for devices that don't always provide the same
* number of movements per detent.
*/
if (now - previous > 1000000000 || direction != counter->direction)
remainder = 0;
counter->direction = direction;
remainder += hi_res_value;
/* Some wheels will rest 7/8ths of a detent from the previous detent
* after slow movement, so we want the threshold for low-res events to
* be in the middle between two detents (e.g. after 4/8ths) as
* opposed to on the detents themselves (8/8ths).
*/
if (abs(remainder) >= 60) {
/* Add (or subtract) 1 because we want to trigger when the wheel
* is half-way to the next detent (i.e. scroll 1 detent after a
* 1/2 detent movement, 2 detents after a 1 1/2 detent movement,
* etc.).
*/
low_res_value = remainder / 120;
if (low_res_value == 0)
low_res_value = (hi_res_value > 0 ? 1 : -1);
input_report_rel(input_dev, REL_WHEEL, low_res_value);
remainder -= low_res_value * 120;
}
counter->remainder = remainder;
}
/* -------------------------------------------------------------------------- */
/* HIDP++ 1.0 commands */
/* -------------------------------------------------------------------------- */
#define HIDPP_SET_REGISTER 0x80
#define HIDPP_GET_REGISTER 0x81
#define HIDPP_SET_LONG_REGISTER 0x82
#define HIDPP_GET_LONG_REGISTER 0x83
/**
* hidpp10_set_register - Modify a HID++ 1.0 register.
* @hidpp_dev: the device to set the register on.
* @register_address: the address of the register to modify.
* @byte: the byte of the register to modify. Should be less than 3.
* @mask: mask of the bits to modify
* @value: new values for the bits in mask
* Return: 0 if successful, otherwise a negative error code.
*/
static int hidpp10_set_register(struct hidpp_device *hidpp_dev,
u8 register_address, u8 byte, u8 mask, u8 value)
{
struct hidpp_report response;
int ret;
u8 params[3] = { 0 };
ret = hidpp_send_rap_command_sync(hidpp_dev,
REPORT_ID_HIDPP_SHORT,
HIDPP_GET_REGISTER,
register_address,
NULL, 0, &response);
if (ret)
return ret;
memcpy(params, response.rap.params, 3);
params[byte] &= ~mask;
params[byte] |= value & mask;
return hidpp_send_rap_command_sync(hidpp_dev,
REPORT_ID_HIDPP_SHORT,
HIDPP_SET_REGISTER,
register_address,
params, 3, &response);
}
#define HIDPP_REG_ENABLE_REPORTS 0x00
#define HIDPP_ENABLE_CONSUMER_REPORT BIT(0)
#define HIDPP_ENABLE_WHEEL_REPORT BIT(2)
#define HIDPP_ENABLE_MOUSE_EXTRA_BTN_REPORT BIT(3)
#define HIDPP_ENABLE_BAT_REPORT BIT(4)
#define HIDPP_ENABLE_HWHEEL_REPORT BIT(5)
static int hidpp10_enable_battery_reporting(struct hidpp_device *hidpp_dev)
{
return hidpp10_set_register(hidpp_dev, HIDPP_REG_ENABLE_REPORTS, 0,
HIDPP_ENABLE_BAT_REPORT, HIDPP_ENABLE_BAT_REPORT);
}
#define HIDPP_REG_FEATURES 0x01
#define HIDPP_ENABLE_SPECIAL_BUTTON_FUNC BIT(1)
#define HIDPP_ENABLE_FAST_SCROLL BIT(6)
/* On HID++ 1.0 devices, high-res scroll was called "scrolling acceleration". */
static int hidpp10_enable_scrolling_acceleration(struct hidpp_device *hidpp_dev)
{
return hidpp10_set_register(hidpp_dev, HIDPP_REG_FEATURES, 0,
HIDPP_ENABLE_FAST_SCROLL, HIDPP_ENABLE_FAST_SCROLL);
}
#define HIDPP_REG_BATTERY_STATUS 0x07
static int hidpp10_battery_status_map_level(u8 param)
{
int level;
switch (param) {
case 1 ... 2:
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
break;
case 3 ... 4:
level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
break;
case 5 ... 6:
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
break;
case 7:
level = POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
break;
default:
level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
}
return level;
}
static int hidpp10_battery_status_map_status(u8 param)
{
int status;
switch (param) {
case 0x00:
/* discharging (in use) */
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 0x21: /* (standard) charging */
case 0x24: /* fast charging */
case 0x25: /* slow charging */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 0x26: /* topping charge */
case 0x22: /* charge complete */
status = POWER_SUPPLY_STATUS_FULL;
break;
case 0x20: /* unknown */
status = POWER_SUPPLY_STATUS_UNKNOWN;
break;
/*
* 0x01...0x1F = reserved (not charging)
* 0x23 = charging error
* 0x27..0xff = reserved
*/
default:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
}
return status;
}
static int hidpp10_query_battery_status(struct hidpp_device *hidpp)
{
struct hidpp_report response;
int ret, status;
ret = hidpp_send_rap_command_sync(hidpp,
REPORT_ID_HIDPP_SHORT,
HIDPP_GET_REGISTER,
HIDPP_REG_BATTERY_STATUS,
NULL, 0, &response);
if (ret)
return ret;
hidpp->battery.level =
hidpp10_battery_status_map_level(response.rap.params[0]);
status = hidpp10_battery_status_map_status(response.rap.params[1]);
hidpp->battery.status = status;
/* the capacity is only available when discharging or full */
hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
status == POWER_SUPPLY_STATUS_FULL;
return 0;
}
#define HIDPP_REG_BATTERY_MILEAGE 0x0D
static int hidpp10_battery_mileage_map_status(u8 param)
{
int status;
switch (param >> 6) {
case 0x00:
/* discharging (in use) */
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 0x01: /* charging */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 0x02: /* charge complete */
status = POWER_SUPPLY_STATUS_FULL;
break;
/*
* 0x03 = charging error
*/
default:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
}
return status;
}
static int hidpp10_query_battery_mileage(struct hidpp_device *hidpp)
{
struct hidpp_report response;
int ret, status;
ret = hidpp_send_rap_command_sync(hidpp,
REPORT_ID_HIDPP_SHORT,
HIDPP_GET_REGISTER,
HIDPP_REG_BATTERY_MILEAGE,
NULL, 0, &response);
if (ret)
return ret;
hidpp->battery.capacity = response.rap.params[0];
status = hidpp10_battery_mileage_map_status(response.rap.params[2]);
hidpp->battery.status = status;
/* the capacity is only available when discharging or full */
hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
status == POWER_SUPPLY_STATUS_FULL;
return 0;
}
static int hidpp10_battery_event(struct hidpp_device *hidpp, u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
int status, capacity, level;
bool changed;
if (report->report_id != REPORT_ID_HIDPP_SHORT)
return 0;
switch (report->rap.sub_id) {
case HIDPP_REG_BATTERY_STATUS:
capacity = hidpp->battery.capacity;
level = hidpp10_battery_status_map_level(report->rawbytes[1]);
status = hidpp10_battery_status_map_status(report->rawbytes[2]);
break;
case HIDPP_REG_BATTERY_MILEAGE:
capacity = report->rap.params[0];
level = hidpp->battery.level;
status = hidpp10_battery_mileage_map_status(report->rawbytes[3]);
break;
default:
return 0;
}
changed = capacity != hidpp->battery.capacity ||
level != hidpp->battery.level ||
status != hidpp->battery.status;
/* the capacity is only available when discharging or full */
hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
status == POWER_SUPPLY_STATUS_FULL;
if (changed) {
hidpp->battery.level = level;
hidpp->battery.status = status;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
#define HIDPP_REG_PAIRING_INFORMATION 0xB5
#define HIDPP_EXTENDED_PAIRING 0x30
#define HIDPP_DEVICE_NAME 0x40
static char *hidpp_unifying_get_name(struct hidpp_device *hidpp_dev)
{
struct hidpp_report response;
int ret;
u8 params[1] = { HIDPP_DEVICE_NAME };
char *name;
int len;
ret = hidpp_send_rap_command_sync(hidpp_dev,
REPORT_ID_HIDPP_SHORT,
HIDPP_GET_LONG_REGISTER,
HIDPP_REG_PAIRING_INFORMATION,
params, 1, &response);
if (ret)
return NULL;
len = response.rap.params[1];
if (2 + len > sizeof(response.rap.params))
return NULL;
if (len < 4) /* logitech devices are usually at least Xddd */
return NULL;
name = kzalloc(len + 1, GFP_KERNEL);
if (!name)
return NULL;
memcpy(name, &response.rap.params[2], len);
/* include the terminating '\0' */
hidpp_prefix_name(&name, len + 1);
return name;
}
static int hidpp_unifying_get_serial(struct hidpp_device *hidpp, u32 *serial)
{
struct hidpp_report response;
int ret;
u8 params[1] = { HIDPP_EXTENDED_PAIRING };
ret = hidpp_send_rap_command_sync(hidpp,
REPORT_ID_HIDPP_SHORT,
HIDPP_GET_LONG_REGISTER,
HIDPP_REG_PAIRING_INFORMATION,
params, 1, &response);
if (ret)
return ret;
/*
* We don't care about LE or BE, we will output it as a string
* with %4phD, so we need to keep the order.
*/
*serial = *((u32 *)&response.rap.params[1]);
return 0;
}
static int hidpp_unifying_init(struct hidpp_device *hidpp)
{
struct hid_device *hdev = hidpp->hid_dev;
const char *name;
u32 serial;
int ret;
ret = hidpp_unifying_get_serial(hidpp, &serial);
if (ret)
return ret;
snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial);
dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq);
name = hidpp_unifying_get_name(hidpp);
if (!name)
return -EIO;
snprintf(hdev->name, sizeof(hdev->name), "%s", name);
dbg_hid("HID++ Unifying: Got name: %s\n", name);
kfree(name);
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x0000: Root */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_ROOT 0x0000
#define HIDPP_PAGE_ROOT_IDX 0x00
#define CMD_ROOT_GET_FEATURE 0x00
#define CMD_ROOT_GET_PROTOCOL_VERSION 0x10
static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature,
u8 *feature_index, u8 *feature_type)
{
struct hidpp_report response;
int ret;
u8 params[2] = { feature >> 8, feature & 0x00FF };
ret = hidpp_send_fap_command_sync(hidpp,
HIDPP_PAGE_ROOT_IDX,
CMD_ROOT_GET_FEATURE,
params, 2, &response);
if (ret)
return ret;
if (response.fap.params[0] == 0)
return -ENOENT;
*feature_index = response.fap.params[0];
*feature_type = response.fap.params[1];
return ret;
}
static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
{
const u8 ping_byte = 0x5a;
u8 ping_data[3] = { 0, 0, ping_byte };
struct hidpp_report response;
int ret;
ret = hidpp_send_rap_command_sync(hidpp,
REPORT_ID_HIDPP_SHORT,
HIDPP_PAGE_ROOT_IDX,
CMD_ROOT_GET_PROTOCOL_VERSION | LINUX_KERNEL_SW_ID,
ping_data, sizeof(ping_data), &response);
if (ret == HIDPP_ERROR_INVALID_SUBID) {
hidpp->protocol_major = 1;
hidpp->protocol_minor = 0;
goto print_version;
}
/* the device might not be connected */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
if (response.rap.params[2] != ping_byte) {
hid_err(hidpp->hid_dev, "%s: ping mismatch 0x%02x != 0x%02x\n",
__func__, response.rap.params[2], ping_byte);
return -EPROTO;
}
hidpp->protocol_major = response.rap.params[0];
hidpp->protocol_minor = response.rap.params[1];
print_version:
hid_info(hidpp->hid_dev, "HID++ %u.%u device connected.\n",
hidpp->protocol_major, hidpp->protocol_minor);
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x0003: Device Information */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_DEVICE_INFORMATION 0x0003
#define CMD_GET_DEVICE_INFO 0x00
static int hidpp_get_serial(struct hidpp_device *hidpp, u32 *serial)
{
struct hidpp_report response;
u8 feature_type;
u8 feature_index;
int ret;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_DEVICE_INFORMATION,
&feature_index,
&feature_type);
if (ret)
return ret;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_GET_DEVICE_INFO,
NULL, 0, &response);
if (ret)
return ret;
/* See hidpp_unifying_get_serial() */
*serial = *((u32 *)&response.rap.params[1]);
return 0;
}
static int hidpp_serial_init(struct hidpp_device *hidpp)
{
struct hid_device *hdev = hidpp->hid_dev;
u32 serial;
int ret;
ret = hidpp_get_serial(hidpp, &serial);
if (ret)
return ret;
snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial);
dbg_hid("HID++ DeviceInformation: Got serial: %s\n", hdev->uniq);
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x0005: GetDeviceNameType */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005
#define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x00
#define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x10
#define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x20
static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp,
u8 feature_index, u8 *nameLength)
{
struct hidpp_report response;
int ret;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
*nameLength = response.fap.params[0];
return ret;
}
static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
u8 feature_index, u8 char_index, char *device_name, int len_buf)
{
struct hidpp_report response;
int ret, i;
int count;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1,
&response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
switch (response.report_id) {
case REPORT_ID_HIDPP_VERY_LONG:
count = hidpp->very_long_report_length - 4;
break;
case REPORT_ID_HIDPP_LONG:
count = HIDPP_REPORT_LONG_LENGTH - 4;
break;
case REPORT_ID_HIDPP_SHORT:
count = HIDPP_REPORT_SHORT_LENGTH - 4;
break;
default:
return -EPROTO;
}
if (len_buf < count)
count = len_buf;
for (i = 0; i < count; i++)
device_name[i] = response.fap.params[i];
return count;
}
static char *hidpp_get_device_name(struct hidpp_device *hidpp)
{
u8 feature_type;
u8 feature_index;
u8 __name_length;
char *name;
unsigned index = 0;
int ret;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE,
&feature_index, &feature_type);
if (ret)
return NULL;
ret = hidpp_devicenametype_get_count(hidpp, feature_index,
&__name_length);
if (ret)
return NULL;
name = kzalloc(__name_length + 1, GFP_KERNEL);
if (!name)
return NULL;
while (index < __name_length) {
ret = hidpp_devicenametype_get_device_name(hidpp,
feature_index, index, name + index,
__name_length - index);
if (ret <= 0) {
kfree(name);
return NULL;
}
index += ret;
}
/* include the terminating '\0' */
hidpp_prefix_name(&name, __name_length + 1);
return name;
}
/* -------------------------------------------------------------------------- */
/* 0x1000: Battery level status */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_BATTERY_LEVEL_STATUS 0x1000
#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS 0x00
#define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY 0x10
#define EVENT_BATTERY_LEVEL_STATUS_BROADCAST 0x00
#define FLAG_BATTERY_LEVEL_DISABLE_OSD BIT(0)
#define FLAG_BATTERY_LEVEL_MILEAGE BIT(1)
#define FLAG_BATTERY_LEVEL_RECHARGEABLE BIT(2)
static int hidpp_map_battery_level(int capacity)
{
if (capacity < 11)
return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
/*
* The spec says this should be < 31 but some devices report 30
* with brand new batteries and Windows reports 30 as "Good".
*/
else if (capacity < 30)
return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else if (capacity < 81)
return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
}
static int hidpp20_batterylevel_map_status_capacity(u8 data[3], int *capacity,
int *next_capacity,
int *level)
{
int status;
*capacity = data[0];
*next_capacity = data[1];
*level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
/* When discharging, we can rely on the device reported capacity.
* For all other states the device reports 0 (unknown).
*/
switch (data[2]) {
case 0: /* discharging (in use) */
status = POWER_SUPPLY_STATUS_DISCHARGING;
*level = hidpp_map_battery_level(*capacity);
break;
case 1: /* recharging */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 2: /* charge in final stage */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 3: /* charge complete */
status = POWER_SUPPLY_STATUS_FULL;
*level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
*capacity = 100;
break;
case 4: /* recharging below optimal speed */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
/* 5 = invalid battery type
6 = thermal error
7 = other charging error */
default:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
}
return status;
}
static int hidpp20_batterylevel_get_battery_capacity(struct hidpp_device *hidpp,
u8 feature_index,
int *status,
int *capacity,
int *next_capacity,
int *level)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS,
NULL, 0, &response);
/* Ignore these intermittent errors */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
*status = hidpp20_batterylevel_map_status_capacity(params, capacity,
next_capacity,
level);
return 0;
}
static int hidpp20_batterylevel_get_battery_info(struct hidpp_device *hidpp,
u8 feature_index)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
unsigned int level_count, flags;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY,
NULL, 0, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
level_count = params[0];
flags = params[1];
if (level_count < 10 || !(flags & FLAG_BATTERY_LEVEL_MILEAGE))
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
else
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
return 0;
}
static int hidpp20_query_battery_info_1000(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
int status, capacity, next_capacity, level;
if (hidpp->battery.feature_index == 0xff) {
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_BATTERY_LEVEL_STATUS,
&hidpp->battery.feature_index,
&feature_type);
if (ret)
return ret;
}
ret = hidpp20_batterylevel_get_battery_capacity(hidpp,
hidpp->battery.feature_index,
&status, &capacity,
&next_capacity, &level);
if (ret)
return ret;
ret = hidpp20_batterylevel_get_battery_info(hidpp,
hidpp->battery.feature_index);
if (ret)
return ret;
hidpp->battery.status = status;
hidpp->battery.capacity = capacity;
hidpp->battery.level = level;
/* the capacity is only available when discharging or full */
hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
status == POWER_SUPPLY_STATUS_FULL;
return 0;
}
static int hidpp20_battery_event_1000(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
int status, capacity, next_capacity, level;
bool changed;
if (report->fap.feature_index != hidpp->battery.feature_index ||
report->fap.funcindex_clientid != EVENT_BATTERY_LEVEL_STATUS_BROADCAST)
return 0;
status = hidpp20_batterylevel_map_status_capacity(report->fap.params,
&capacity,
&next_capacity,
&level);
/* the capacity is only available when discharging or full */
hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING ||
status == POWER_SUPPLY_STATUS_FULL;
changed = capacity != hidpp->battery.capacity ||
level != hidpp->battery.level ||
status != hidpp->battery.status;
if (changed) {
hidpp->battery.level = level;
hidpp->battery.capacity = capacity;
hidpp->battery.status = status;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x1001: Battery voltage */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_BATTERY_VOLTAGE 0x1001
#define CMD_BATTERY_VOLTAGE_GET_BATTERY_VOLTAGE 0x00
#define EVENT_BATTERY_VOLTAGE_STATUS_BROADCAST 0x00
static int hidpp20_battery_map_status_voltage(u8 data[3], int *voltage,
int *level, int *charge_type)
{
int status;
long flags = (long) data[2];
*level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
if (flags & 0x80)
switch (flags & 0x07) {
case 0:
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 1:
status = POWER_SUPPLY_STATUS_FULL;
*level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
break;
case 2:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
default:
status = POWER_SUPPLY_STATUS_UNKNOWN;
break;
}
else
status = POWER_SUPPLY_STATUS_DISCHARGING;
*charge_type = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
if (test_bit(3, &flags)) {
*charge_type = POWER_SUPPLY_CHARGE_TYPE_FAST;
}
if (test_bit(4, &flags)) {
*charge_type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
}
if (test_bit(5, &flags)) {
*level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
}
*voltage = get_unaligned_be16(data);
return status;
}
static int hidpp20_battery_get_battery_voltage(struct hidpp_device *hidpp,
u8 feature_index,
int *status, int *voltage,
int *level, int *charge_type)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_BATTERY_VOLTAGE_GET_BATTERY_VOLTAGE,
NULL, 0, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_VOLTAGE;
*status = hidpp20_battery_map_status_voltage(params, voltage,
level, charge_type);
return 0;
}
static int hidpp20_map_battery_capacity(struct hid_device *hid_dev, int voltage)
{
/* NB: This voltage curve doesn't necessarily map perfectly to all
* devices that implement the BATTERY_VOLTAGE feature. This is because
* there are a few devices that use different battery technology.
*/
static const int voltages[100] = {
4186, 4156, 4143, 4133, 4122, 4113, 4103, 4094, 4086, 4075,
4067, 4059, 4051, 4043, 4035, 4027, 4019, 4011, 4003, 3997,
3989, 3983, 3976, 3969, 3961, 3955, 3949, 3942, 3935, 3929,
3922, 3916, 3909, 3902, 3896, 3890, 3883, 3877, 3870, 3865,
3859, 3853, 3848, 3842, 3837, 3833, 3828, 3824, 3819, 3815,
3811, 3808, 3804, 3800, 3797, 3793, 3790, 3787, 3784, 3781,
3778, 3775, 3772, 3770, 3767, 3764, 3762, 3759, 3757, 3754,
3751, 3748, 3744, 3741, 3737, 3734, 3730, 3726, 3724, 3720,
3717, 3714, 3710, 3706, 3702, 3697, 3693, 3688, 3683, 3677,
3671, 3666, 3662, 3658, 3654, 3646, 3633, 3612, 3579, 3537
};
int i;
if (unlikely(voltage < 3500 || voltage >= 5000))
hid_warn_once(hid_dev,
"%s: possibly using the wrong voltage curve\n",
__func__);
for (i = 0; i < ARRAY_SIZE(voltages); i++) {
if (voltage >= voltages[i])
return ARRAY_SIZE(voltages) - i;
}
return 0;
}
static int hidpp20_query_battery_voltage_info(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
int status, voltage, level, charge_type;
if (hidpp->battery.voltage_feature_index == 0xff) {
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_BATTERY_VOLTAGE,
&hidpp->battery.voltage_feature_index,
&feature_type);
if (ret)
return ret;
}
ret = hidpp20_battery_get_battery_voltage(hidpp,
hidpp->battery.voltage_feature_index,
&status, &voltage, &level, &charge_type);
if (ret)
return ret;
hidpp->battery.status = status;
hidpp->battery.voltage = voltage;
hidpp->battery.capacity = hidpp20_map_battery_capacity(hidpp->hid_dev,
voltage);
hidpp->battery.level = level;
hidpp->battery.charge_type = charge_type;
hidpp->battery.online = status != POWER_SUPPLY_STATUS_NOT_CHARGING;
return 0;
}
static int hidpp20_battery_voltage_event(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
int status, voltage, level, charge_type;
if (report->fap.feature_index != hidpp->battery.voltage_feature_index ||
report->fap.funcindex_clientid != EVENT_BATTERY_VOLTAGE_STATUS_BROADCAST)
return 0;
status = hidpp20_battery_map_status_voltage(report->fap.params, &voltage,
&level, &charge_type);
hidpp->battery.online = status != POWER_SUPPLY_STATUS_NOT_CHARGING;
if (voltage != hidpp->battery.voltage || status != hidpp->battery.status) {
hidpp->battery.voltage = voltage;
hidpp->battery.capacity = hidpp20_map_battery_capacity(hidpp->hid_dev,
voltage);
hidpp->battery.status = status;
hidpp->battery.level = level;
hidpp->battery.charge_type = charge_type;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x1004: Unified battery */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_UNIFIED_BATTERY 0x1004
#define CMD_UNIFIED_BATTERY_GET_CAPABILITIES 0x00
#define CMD_UNIFIED_BATTERY_GET_STATUS 0x10
#define EVENT_UNIFIED_BATTERY_STATUS_EVENT 0x00
#define FLAG_UNIFIED_BATTERY_LEVEL_CRITICAL BIT(0)
#define FLAG_UNIFIED_BATTERY_LEVEL_LOW BIT(1)
#define FLAG_UNIFIED_BATTERY_LEVEL_GOOD BIT(2)
#define FLAG_UNIFIED_BATTERY_LEVEL_FULL BIT(3)
#define FLAG_UNIFIED_BATTERY_FLAGS_RECHARGEABLE BIT(0)
#define FLAG_UNIFIED_BATTERY_FLAGS_STATE_OF_CHARGE BIT(1)
static int hidpp20_unifiedbattery_get_capabilities(struct hidpp_device *hidpp,
u8 feature_index)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS ||
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE) {
/* we have already set the device capabilities, so let's skip */
return 0;
}
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_UNIFIED_BATTERY_GET_CAPABILITIES,
NULL, 0, &response);
/* Ignore these intermittent errors */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
/*
* If the device supports state of charge (battery percentage) we won't
* export the battery level information. there are 4 possible battery
* levels and they all are optional, this means that the device might
* not support any of them, we are just better off with the battery
* percentage.
*/
if (params[1] & FLAG_UNIFIED_BATTERY_FLAGS_STATE_OF_CHARGE) {
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_PERCENTAGE;
hidpp->battery.supported_levels_1004 = 0;
} else {
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
hidpp->battery.supported_levels_1004 = params[0];
}
return 0;
}
static int hidpp20_unifiedbattery_map_status(struct hidpp_device *hidpp,
u8 charging_status,
u8 external_power_status)
{
int status;
switch (charging_status) {
case 0: /* discharging */
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 1: /* charging */
case 2: /* charging slow */
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 3: /* complete */
status = POWER_SUPPLY_STATUS_FULL;
break;
case 4: /* error */
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
hid_info(hidpp->hid_dev, "%s: charging error",
hidpp->name);
break;
default:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
}
return status;
}
static int hidpp20_unifiedbattery_map_level(struct hidpp_device *hidpp,
u8 battery_level)
{
/* cler unsupported level bits */
battery_level &= hidpp->battery.supported_levels_1004;
if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_FULL)
return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_GOOD)
return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_LOW)
return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else if (battery_level & FLAG_UNIFIED_BATTERY_LEVEL_CRITICAL)
return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
return POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
}
static int hidpp20_unifiedbattery_get_status(struct hidpp_device *hidpp,
u8 feature_index,
u8 *state_of_charge,
int *status,
int *level)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_UNIFIED_BATTERY_GET_STATUS,
NULL, 0, &response);
/* Ignore these intermittent errors */
if (ret == HIDPP_ERROR_RESOURCE_ERROR)
return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
*state_of_charge = params[0];
*status = hidpp20_unifiedbattery_map_status(hidpp, params[2], params[3]);
*level = hidpp20_unifiedbattery_map_level(hidpp, params[1]);
return 0;
}
static int hidpp20_query_battery_info_1004(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
u8 state_of_charge;
int status, level;
if (hidpp->battery.feature_index == 0xff) {
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_UNIFIED_BATTERY,
&hidpp->battery.feature_index,
&feature_type);
if (ret)
return ret;
}
ret = hidpp20_unifiedbattery_get_capabilities(hidpp,
hidpp->battery.feature_index);
if (ret)
return ret;
ret = hidpp20_unifiedbattery_get_status(hidpp,
hidpp->battery.feature_index,
&state_of_charge,
&status,
&level);
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_UNIFIED_BATTERY;
hidpp->battery.capacity = state_of_charge;
hidpp->battery.status = status;
hidpp->battery.level = level;
hidpp->battery.online = true;
return 0;
}
static int hidpp20_battery_event_1004(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
u8 *params = (u8 *)report->fap.params;
int state_of_charge, status, level;
bool changed;
if (report->fap.feature_index != hidpp->battery.feature_index ||
report->fap.funcindex_clientid != EVENT_UNIFIED_BATTERY_STATUS_EVENT)
return 0;
state_of_charge = params[0];
status = hidpp20_unifiedbattery_map_status(hidpp, params[2], params[3]);
level = hidpp20_unifiedbattery_map_level(hidpp, params[1]);
changed = status != hidpp->battery.status ||
(state_of_charge != hidpp->battery.capacity &&
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE) ||
(level != hidpp->battery.level &&
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS);
if (changed) {
hidpp->battery.capacity = state_of_charge;
hidpp->battery.status = status;
hidpp->battery.level = level;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* Battery feature helpers */
/* -------------------------------------------------------------------------- */
static enum power_supply_property hidpp_battery_props[] = {
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY, */
0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY_LEVEL, */
0, /* placeholder for POWER_SUPPLY_PROP_VOLTAGE_NOW, */
};
static int hidpp_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct hidpp_device *hidpp = power_supply_get_drvdata(psy);
int ret = 0;
switch(psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = hidpp->battery.status;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = hidpp->battery.capacity;
break;
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
val->intval = hidpp->battery.level;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_ONLINE:
val->intval = hidpp->battery.online;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
if (!strncmp(hidpp->name, "Logitech ", 9))
val->strval = hidpp->name + 9;
else
val->strval = hidpp->name;
break;
case POWER_SUPPLY_PROP_MANUFACTURER:
val->strval = "Logitech";
break;
case POWER_SUPPLY_PROP_SERIAL_NUMBER:
val->strval = hidpp->hid_dev->uniq;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
/* hardware reports voltage in mV. sysfs expects uV */
val->intval = hidpp->battery.voltage * 1000;
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
val->intval = hidpp->battery.charge_type;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
/* -------------------------------------------------------------------------- */
/* 0x1d4b: Wireless device status */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_WIRELESS_DEVICE_STATUS 0x1d4b
static int hidpp_set_wireless_feature_index(struct hidpp_device *hidpp)
{
u8 feature_type;
int ret;
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_WIRELESS_DEVICE_STATUS,
&hidpp->wireless_feature_index,
&feature_type);
return ret;
}
/* -------------------------------------------------------------------------- */
/* 0x1f20: ADC measurement */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_ADC_MEASUREMENT 0x1f20
#define CMD_ADC_MEASUREMENT_GET_ADC_MEASUREMENT 0x00
#define EVENT_ADC_MEASUREMENT_STATUS_BROADCAST 0x00
static int hidpp20_map_adc_measurement_1f20_capacity(struct hid_device *hid_dev, int voltage)
{
/* NB: This voltage curve doesn't necessarily map perfectly to all
* devices that implement the ADC_MEASUREMENT feature. This is because
* there are a few devices that use different battery technology.
*
* Adapted from:
* https://github.com/Sapd/HeadsetControl/blob/acd972be0468e039b93aae81221f20a54d2d60f7/src/devices/logitech_g633_g933_935.c#L44-L52
*/
static const int voltages[100] = {
4030, 4024, 4018, 4011, 4003, 3994, 3985, 3975, 3963, 3951,
3937, 3922, 3907, 3893, 3880, 3868, 3857, 3846, 3837, 3828,
3820, 3812, 3805, 3798, 3791, 3785, 3779, 3773, 3768, 3762,
3757, 3752, 3747, 3742, 3738, 3733, 3729, 3724, 3720, 3716,
3712, 3708, 3704, 3700, 3696, 3692, 3688, 3685, 3681, 3677,
3674, 3670, 3667, 3663, 3660, 3657, 3653, 3650, 3646, 3643,
3640, 3637, 3633, 3630, 3627, 3624, 3620, 3617, 3614, 3611,
3608, 3604, 3601, 3598, 3595, 3592, 3589, 3585, 3582, 3579,
3576, 3573, 3569, 3566, 3563, 3560, 3556, 3553, 3550, 3546,
3543, 3539, 3536, 3532, 3529, 3525, 3499, 3466, 3433, 3399,
};
int i;
if (voltage == 0)
return 0;
if (unlikely(voltage < 3400 || voltage >= 5000))
hid_warn_once(hid_dev,
"%s: possibly using the wrong voltage curve\n",
__func__);
for (i = 0; i < ARRAY_SIZE(voltages); i++) {
if (voltage >= voltages[i])
return ARRAY_SIZE(voltages) - i;
}
return 0;
}
static int hidpp20_map_adc_measurement_1f20(u8 data[3], int *voltage)
{
int status;
u8 flags;
flags = data[2];
switch (flags) {
case 0x01:
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 0x03:
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 0x07:
status = POWER_SUPPLY_STATUS_FULL;
break;
case 0x0F:
default:
status = POWER_SUPPLY_STATUS_UNKNOWN;
break;
}
*voltage = get_unaligned_be16(data);
dbg_hid("Parsed 1f20 data as flag 0x%02x voltage %dmV\n",
flags, *voltage);
return status;
}
/* Return value is whether the device is online */
static bool hidpp20_get_adc_measurement_1f20(struct hidpp_device *hidpp,
u8 feature_index,
int *status, int *voltage)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
*status = POWER_SUPPLY_STATUS_UNKNOWN;
*voltage = 0;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_ADC_MEASUREMENT_GET_ADC_MEASUREMENT,
NULL, 0, &response);
if (ret > 0) {
hid_dbg(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return false;
}
*status = hidpp20_map_adc_measurement_1f20(params, voltage);
return true;
}
static int hidpp20_query_adc_measurement_info_1f20(struct hidpp_device *hidpp)
{
u8 feature_type;
if (hidpp->battery.adc_measurement_feature_index == 0xff) {
int ret;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_ADC_MEASUREMENT,
&hidpp->battery.adc_measurement_feature_index,
&feature_type);
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_ADC_MEASUREMENT;
}
hidpp->battery.online = hidpp20_get_adc_measurement_1f20(hidpp,
hidpp->battery.adc_measurement_feature_index,
&hidpp->battery.status,
&hidpp->battery.voltage);
hidpp->battery.capacity = hidpp20_map_adc_measurement_1f20_capacity(hidpp->hid_dev,
hidpp->battery.voltage);
hidpp_update_usb_wireless_status(hidpp);
return 0;
}
static int hidpp20_adc_measurement_event_1f20(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
int status, voltage;
if (report->fap.feature_index != hidpp->battery.adc_measurement_feature_index ||
report->fap.funcindex_clientid != EVENT_ADC_MEASUREMENT_STATUS_BROADCAST)
return 0;
status = hidpp20_map_adc_measurement_1f20(report->fap.params, &voltage);
hidpp->battery.online = status != POWER_SUPPLY_STATUS_UNKNOWN;
if (voltage != hidpp->battery.voltage || status != hidpp->battery.status) {
hidpp->battery.status = status;
hidpp->battery.voltage = voltage;
hidpp->battery.capacity = hidpp20_map_adc_measurement_1f20_capacity(hidpp->hid_dev, voltage);
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
hidpp_update_usb_wireless_status(hidpp);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x2120: Hi-resolution scrolling */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_HI_RESOLUTION_SCROLLING 0x2120
#define CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE 0x10
static int hidpp_hrs_set_highres_scrolling_mode(struct hidpp_device *hidpp,
bool enabled, u8 *multiplier)
{
u8 feature_index;
u8 feature_type;
int ret;
u8 params[1];
struct hidpp_report response;
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_HI_RESOLUTION_SCROLLING,
&feature_index,
&feature_type);
if (ret)
return ret;
params[0] = enabled ? BIT(0) : 0;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE,
params, sizeof(params), &response);
if (ret)
return ret;
*multiplier = response.fap.params[1];
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x2121: HiRes Wheel */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_HIRES_WHEEL 0x2121
#define CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY 0x00
#define CMD_HIRES_WHEEL_SET_WHEEL_MODE 0x20
static int hidpp_hrw_get_wheel_capability(struct hidpp_device *hidpp,
u8 *multiplier)
{
u8 feature_index;
u8 feature_type;
int ret;
struct hidpp_report response;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
&feature_index, &feature_type);
if (ret)
goto return_default;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY,
NULL, 0, &response);
if (ret)
goto return_default;
*multiplier = response.fap.params[0];
return 0;
return_default:
hid_warn(hidpp->hid_dev,
"Couldn't get wheel multiplier (error %d)\n", ret);
return ret;
}
static int hidpp_hrw_set_wheel_mode(struct hidpp_device *hidpp, bool invert,
bool high_resolution, bool use_hidpp)
{
u8 feature_index;
u8 feature_type;
int ret;
u8 params[1];
struct hidpp_report response;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
&feature_index, &feature_type);
if (ret)
return ret;
params[0] = (invert ? BIT(2) : 0) |
(high_resolution ? BIT(1) : 0) |
(use_hidpp ? BIT(0) : 0);
return hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_HIRES_WHEEL_SET_WHEEL_MODE,
params, sizeof(params), &response);
}
/* -------------------------------------------------------------------------- */
/* 0x4301: Solar Keyboard */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_SOLAR_KEYBOARD 0x4301
#define CMD_SOLAR_SET_LIGHT_MEASURE 0x00
#define EVENT_SOLAR_BATTERY_BROADCAST 0x00
#define EVENT_SOLAR_BATTERY_LIGHT_MEASURE 0x10
#define EVENT_SOLAR_CHECK_LIGHT_BUTTON 0x20
static int hidpp_solar_request_battery_event(struct hidpp_device *hidpp)
{
struct hidpp_report response;
u8 params[2] = { 1, 1 };
u8 feature_type;
int ret;
if (hidpp->battery.feature_index == 0xff) {
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_SOLAR_KEYBOARD,
&hidpp->battery.solar_feature_index,
&feature_type);
if (ret)
return ret;
}
ret = hidpp_send_fap_command_sync(hidpp,
hidpp->battery.solar_feature_index,
CMD_SOLAR_SET_LIGHT_MEASURE,
params, 2, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
return 0;
}
static int hidpp_solar_battery_event(struct hidpp_device *hidpp,
u8 *data, int size)
{
struct hidpp_report *report = (struct hidpp_report *)data;
int capacity, lux, status;
u8 function;
function = report->fap.funcindex_clientid;
if (report->fap.feature_index != hidpp->battery.solar_feature_index ||
!(function == EVENT_SOLAR_BATTERY_BROADCAST ||
function == EVENT_SOLAR_BATTERY_LIGHT_MEASURE ||
function == EVENT_SOLAR_CHECK_LIGHT_BUTTON))
return 0;
capacity = report->fap.params[0];
switch (function) {
case EVENT_SOLAR_BATTERY_LIGHT_MEASURE:
lux = (report->fap.params[1] << 8) | report->fap.params[2];
if (lux > 200)
status = POWER_SUPPLY_STATUS_CHARGING;
else
status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case EVENT_SOLAR_CHECK_LIGHT_BUTTON:
default:
if (capacity < hidpp->battery.capacity)
status = POWER_SUPPLY_STATUS_DISCHARGING;
else
status = POWER_SUPPLY_STATUS_CHARGING;
}
if (capacity == 100)
status = POWER_SUPPLY_STATUS_FULL;
hidpp->battery.online = true;
if (capacity != hidpp->battery.capacity ||
status != hidpp->battery.status) {
hidpp->battery.capacity = capacity;
hidpp->battery.status = status;
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
}
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x6010: Touchpad FW items */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_TOUCHPAD_FW_ITEMS 0x6010
#define CMD_TOUCHPAD_FW_ITEMS_SET 0x10
struct hidpp_touchpad_fw_items {
uint8_t presence;
uint8_t desired_state;
uint8_t state;
uint8_t persistent;
};
/*
* send a set state command to the device by reading the current items->state
* field. items is then filled with the current state.
*/
static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp,
u8 feature_index,
struct hidpp_touchpad_fw_items *items)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
items->presence = params[0];
items->desired_state = params[1];
items->state = params[2];
items->persistent = params[3];
return 0;
}
/* -------------------------------------------------------------------------- */
/* 0x6100: TouchPadRawXY */
/* -------------------------------------------------------------------------- */
#define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100
#define CMD_TOUCHPAD_GET_RAW_INFO 0x00
#define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x20
#define EVENT_TOUCHPAD_RAW_XY 0x00
#define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01
#define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03
struct hidpp_touchpad_raw_info {
u16 x_size;
u16 y_size;
u8 z_range;
u8 area_range;
u8 timestamp_unit;
u8 maxcontacts;
u8 origin;
u16 res;
};
struct hidpp_touchpad_raw_xy_finger {
u8 contact_type;
u8 contact_status;
u16 x;
u16 y;
u8 z;
u8 area;
u8 finger_id;
};
struct hidpp_touchpad_raw_xy {
u16 timestamp;
struct hidpp_touchpad_raw_xy_finger fingers[2];
u8 spurious_flag;
u8 end_of_frame;
u8 finger_count;
u8 button;
};
static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp,
u8 feature_index, struct hidpp_touchpad_raw_info *raw_info)
{
struct hidpp_report response;
int ret;
u8 *params = (u8 *)response.fap.params;
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response);
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
return -EPROTO;
}
if (ret)
return ret;
raw_info->x_size = get_unaligned_be16(¶ms[0]);
raw_info->y_size = get_unaligned_be16(¶ms[2]);
raw_info->z_range = params[4];
raw_info->area_range = params[5];
raw_info->maxcontacts = params[7];
raw_info->origin = params[8];
/* res is given in unit per inch */
raw_info->res = get_unaligned_be16(¶ms[13]) * 2 / 51;
return ret;
}
static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev,
u8 feature_index, bool send_raw_reports,
bool sensor_enhanced_settings)
{
struct hidpp_report response;
/*
* Params:
* bit 0 - enable raw
* bit 1 - 16bit Z, no area
* bit 2 - enhanced sensitivity
* bit 3 - width, height (4 bits each) instead of area
* bit 4 - send raw + gestures (degrades smoothness)
* remaining bits - reserved
*/
u8 params = send_raw_reports | (sensor_enhanced_settings << 2);
return hidpp_send_fap_command_sync(hidpp_dev, feature_index,
CMD_TOUCHPAD_SET_RAW_REPORT_STATE, ¶ms, 1, &response);
}
static void hidpp_touchpad_touch_event(u8 *data,
struct hidpp_touchpad_raw_xy_finger *finger)
{
u8 x_m = data[0] << 2;
u8 y_m = data[2] << 2;
finger->x = x_m << 6 | data[1];
finger->y = y_m << 6 | data[3];
finger->contact_type = data[0] >> 6;
finger->contact_status = data[2] >> 6;
finger->z = data[4];
finger->area = data[5];
finger->finger_id = data[6] >> 4;
}
static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev,
u8 *data, struct hidpp_touchpad_raw_xy *raw_xy)
{
memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy));
raw_xy->end_of_frame = data[8] & 0x01;
raw_xy->spurious_flag = (data[8] >> 1) & 0x01;
raw_xy->finger_count = data[15] & 0x0f;
raw_xy->button = (data[8] >> 2) & 0x01;
if (raw_xy->finger_count) {
hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]);
hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]);
}
}
/* -------------------------------------------------------------------------- */
/* 0x8123: Force feedback support */
/* -------------------------------------------------------------------------- */
#define HIDPP_FF_GET_INFO 0x01
#define HIDPP_FF_RESET_ALL 0x11
#define HIDPP_FF_DOWNLOAD_EFFECT 0x21
#define HIDPP_FF_SET_EFFECT_STATE 0x31
#define HIDPP_FF_DESTROY_EFFECT 0x41
#define HIDPP_FF_GET_APERTURE 0x51
#define HIDPP_FF_SET_APERTURE 0x61
#define HIDPP_FF_GET_GLOBAL_GAINS 0x71
#define HIDPP_FF_SET_GLOBAL_GAINS 0x81
#define HIDPP_FF_EFFECT_STATE_GET 0x00
#define HIDPP_FF_EFFECT_STATE_STOP 0x01
#define HIDPP_FF_EFFECT_STATE_PLAY 0x02
#define HIDPP_FF_EFFECT_STATE_PAUSE 0x03
#define HIDPP_FF_EFFECT_CONSTANT 0x00
#define HIDPP_FF_EFFECT_PERIODIC_SINE 0x01
#define HIDPP_FF_EFFECT_PERIODIC_SQUARE 0x02
#define HIDPP_FF_EFFECT_PERIODIC_TRIANGLE 0x03
#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP 0x04
#define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN 0x05
#define HIDPP_FF_EFFECT_SPRING 0x06
#define HIDPP_FF_EFFECT_DAMPER 0x07
#define HIDPP_FF_EFFECT_FRICTION 0x08
#define HIDPP_FF_EFFECT_INERTIA 0x09
#define HIDPP_FF_EFFECT_RAMP 0x0A
#define HIDPP_FF_EFFECT_AUTOSTART 0x80
#define HIDPP_FF_EFFECTID_NONE -1
#define HIDPP_FF_EFFECTID_AUTOCENTER -2
#define HIDPP_AUTOCENTER_PARAMS_LENGTH 18
#define HIDPP_FF_MAX_PARAMS 20
#define HIDPP_FF_RESERVED_SLOTS 1
struct hidpp_ff_private_data {
struct hidpp_device *hidpp;
u8 feature_index;
u8 version;
u16 gain;
s16 range;
u8 slot_autocenter;
u8 num_effects;
int *effect_ids;
struct workqueue_struct *wq;
atomic_t workqueue_size;
};
struct hidpp_ff_work_data {
struct work_struct work;
struct hidpp_ff_private_data *data;
int effect_id;
u8 command;
u8 params[HIDPP_FF_MAX_PARAMS];
u8 size;
};
static const signed short hidpp_ff_effects[] = {
FF_CONSTANT,
FF_PERIODIC,
FF_SINE,
FF_SQUARE,
FF_SAW_UP,
FF_SAW_DOWN,
FF_TRIANGLE,
FF_SPRING,
FF_DAMPER,
FF_AUTOCENTER,
FF_GAIN,
-1
};
static const signed short hidpp_ff_effects_v2[] = {
FF_RAMP,
FF_FRICTION,
FF_INERTIA,
-1
};
static const u8 HIDPP_FF_CONDITION_CMDS[] = {
HIDPP_FF_EFFECT_SPRING,
HIDPP_FF_EFFECT_FRICTION,
HIDPP_FF_EFFECT_DAMPER,
HIDPP_FF_EFFECT_INERTIA
};
static const char *HIDPP_FF_CONDITION_NAMES[] = {
"spring",
"friction",
"damper",
"inertia"
};
static u8 hidpp_ff_find_effect(struct hidpp_ff_private_data *data, int effect_id)
{
int i;
for (i = 0; i < data->num_effects; i++)
if (data->effect_ids[i] == effect_id)
return i+1;
return 0;
}
static void hidpp_ff_work_handler(struct work_struct *w)
{
struct hidpp_ff_work_data *wd = container_of(w, struct hidpp_ff_work_data, work);
struct hidpp_ff_private_data *data = wd->data;
struct hidpp_report response;
u8 slot;
int ret;
/* add slot number if needed */
switch (wd->effect_id) {
case HIDPP_FF_EFFECTID_AUTOCENTER:
wd->params[0] = data->slot_autocenter;
break;
case HIDPP_FF_EFFECTID_NONE:
/* leave slot as zero */
break;
default:
/* find current slot for effect */
wd->params[0] = hidpp_ff_find_effect(data, wd->effect_id);
break;
}
/* send command and wait for reply */
ret = hidpp_send_fap_command_sync(data->hidpp, data->feature_index,
wd->command, wd->params, wd->size, &response);
if (ret) {
hid_err(data->hidpp->hid_dev, "Failed to send command to device!\n");
goto out;
}
/* parse return data */
switch (wd->command) {
case HIDPP_FF_DOWNLOAD_EFFECT:
slot = response.fap.params[0];
if (slot > 0 && slot <= data->num_effects) {
if (wd->effect_id >= 0)
/* regular effect uploaded */
data->effect_ids[slot-1] = wd->effect_id;
else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
/* autocenter spring uploaded */
data->slot_autocenter = slot;
}
break;
case HIDPP_FF_DESTROY_EFFECT:
if (wd->effect_id >= 0)
/* regular effect destroyed */
data->effect_ids[wd->params[0]-1] = -1;
else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER)
/* autocenter spring destoyed */
data->slot_autocenter = 0;
break;
case HIDPP_FF_SET_GLOBAL_GAINS:
data->gain = (wd->params[0] << 8) + wd->params[1];
break;
case HIDPP_FF_SET_APERTURE:
data->range = (wd->params[0] << 8) + wd->params[1];
break;
default:
/* no action needed */
break;
}
out:
atomic_dec(&data->workqueue_size);
kfree(wd);
}
static int hidpp_ff_queue_work(struct hidpp_ff_private_data *data, int effect_id, u8 command, u8 *params, u8 size)
{
struct hidpp_ff_work_data *wd = kzalloc(sizeof(*wd), GFP_KERNEL);
int s;
if (!wd)
return -ENOMEM;
INIT_WORK(&wd->work, hidpp_ff_work_handler);
wd->data = data;
wd->effect_id = effect_id;
wd->command = command;
wd->size = size;
memcpy(wd->params, params, size);
s = atomic_inc_return(&data->workqueue_size);
queue_work(data->wq, &wd->work);
/* warn about excessive queue size */
if (s >= 20 && s % 20 == 0)
hid_warn(data->hidpp->hid_dev, "Force feedback command queue contains %d commands, causing substantial delays!", s);
return 0;
}
static int hidpp_ff_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct hidpp_ff_private_data *data = dev->ff->private;
u8 params[20];
u8 size;
int force;
/* set common parameters */
params[2] = effect->replay.length >> 8;
params[3] = effect->replay.length & 255;
params[4] = effect->replay.delay >> 8;
params[5] = effect->replay.delay & 255;
switch (effect->type) {
case FF_CONSTANT:
force = (effect->u.constant.level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
params[1] = HIDPP_FF_EFFECT_CONSTANT;
params[6] = force >> 8;
params[7] = force & 255;
params[8] = effect->u.constant.envelope.attack_level >> 7;
params[9] = effect->u.constant.envelope.attack_length >> 8;
params[10] = effect->u.constant.envelope.attack_length & 255;
params[11] = effect->u.constant.envelope.fade_level >> 7;
params[12] = effect->u.constant.envelope.fade_length >> 8;
params[13] = effect->u.constant.envelope.fade_length & 255;
size = 14;
dbg_hid("Uploading constant force level=%d in dir %d = %d\n",
effect->u.constant.level,
effect->direction, force);
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
effect->u.constant.envelope.attack_level,
effect->u.constant.envelope.attack_length,
effect->u.constant.envelope.fade_level,
effect->u.constant.envelope.fade_length);
break;
case FF_PERIODIC:
{
switch (effect->u.periodic.waveform) {
case FF_SINE:
params[1] = HIDPP_FF_EFFECT_PERIODIC_SINE;
break;
case FF_SQUARE:
params[1] = HIDPP_FF_EFFECT_PERIODIC_SQUARE;
break;
case FF_SAW_UP:
params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP;
break;
case FF_SAW_DOWN:
params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN;
break;
case FF_TRIANGLE:
params[1] = HIDPP_FF_EFFECT_PERIODIC_TRIANGLE;
break;
default:
hid_err(data->hidpp->hid_dev, "Unexpected periodic waveform type %i!\n", effect->u.periodic.waveform);
return -EINVAL;
}
force = (effect->u.periodic.magnitude * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
params[6] = effect->u.periodic.magnitude >> 8;
params[7] = effect->u.periodic.magnitude & 255;
params[8] = effect->u.periodic.offset >> 8;
params[9] = effect->u.periodic.offset & 255;
params[10] = effect->u.periodic.period >> 8;
params[11] = effect->u.periodic.period & 255;
params[12] = effect->u.periodic.phase >> 8;
params[13] = effect->u.periodic.phase & 255;
params[14] = effect->u.periodic.envelope.attack_level >> 7;
params[15] = effect->u.periodic.envelope.attack_length >> 8;
params[16] = effect->u.periodic.envelope.attack_length & 255;
params[17] = effect->u.periodic.envelope.fade_level >> 7;
params[18] = effect->u.periodic.envelope.fade_length >> 8;
params[19] = effect->u.periodic.envelope.fade_length & 255;
size = 20;
dbg_hid("Uploading periodic force mag=%d/dir=%d, offset=%d, period=%d ms, phase=%d\n",
effect->u.periodic.magnitude, effect->direction,
effect->u.periodic.offset,
effect->u.periodic.period,
effect->u.periodic.phase);
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
effect->u.periodic.envelope.attack_level,
effect->u.periodic.envelope.attack_length,
effect->u.periodic.envelope.fade_level,
effect->u.periodic.envelope.fade_length);
break;
}
case FF_RAMP:
params[1] = HIDPP_FF_EFFECT_RAMP;
force = (effect->u.ramp.start_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
params[6] = force >> 8;
params[7] = force & 255;
force = (effect->u.ramp.end_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15;
params[8] = force >> 8;
params[9] = force & 255;
params[10] = effect->u.ramp.envelope.attack_level >> 7;
params[11] = effect->u.ramp.envelope.attack_length >> 8;
params[12] = effect->u.ramp.envelope.attack_length & 255;
params[13] = effect->u.ramp.envelope.fade_level >> 7;
params[14] = effect->u.ramp.envelope.fade_length >> 8;
params[15] = effect->u.ramp.envelope.fade_length & 255;
size = 16;
dbg_hid("Uploading ramp force level=%d -> %d in dir %d = %d\n",
effect->u.ramp.start_level,
effect->u.ramp.end_level,
effect->direction, force);
dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n",
effect->u.ramp.envelope.attack_level,
effect->u.ramp.envelope.attack_length,
effect->u.ramp.envelope.fade_level,
effect->u.ramp.envelope.fade_length);
break;
case FF_FRICTION:
case FF_INERTIA:
case FF_SPRING:
case FF_DAMPER:
params[1] = HIDPP_FF_CONDITION_CMDS[effect->type - FF_SPRING];
params[6] = effect->u.condition[0].left_saturation >> 9;
params[7] = (effect->u.condition[0].left_saturation >> 1) & 255;
params[8] = effect->u.condition[0].left_coeff >> 8;
params[9] = effect->u.condition[0].left_coeff & 255;
params[10] = effect->u.condition[0].deadband >> 9;
params[11] = (effect->u.condition[0].deadband >> 1) & 255;
params[12] = effect->u.condition[0].center >> 8;
params[13] = effect->u.condition[0].center & 255;
params[14] = effect->u.condition[0].right_coeff >> 8;
params[15] = effect->u.condition[0].right_coeff & 255;
params[16] = effect->u.condition[0].right_saturation >> 9;
params[17] = (effect->u.condition[0].right_saturation >> 1) & 255;
size = 18;
dbg_hid("Uploading %s force left coeff=%d, left sat=%d, right coeff=%d, right sat=%d\n",
HIDPP_FF_CONDITION_NAMES[effect->type - FF_SPRING],
effect->u.condition[0].left_coeff,
effect->u.condition[0].left_saturation,
effect->u.condition[0].right_coeff,
effect->u.condition[0].right_saturation);
dbg_hid(" deadband=%d, center=%d\n",
effect->u.condition[0].deadband,
effect->u.condition[0].center);
break;
default:
hid_err(data->hidpp->hid_dev, "Unexpected force type %i!\n", effect->type);
return -EINVAL;
}
return hidpp_ff_queue_work(data, effect->id, HIDPP_FF_DOWNLOAD_EFFECT, params, size);
}
static int hidpp_ff_playback(struct input_dev *dev, int effect_id, int value)
{
struct hidpp_ff_private_data *data = dev->ff->private;
u8 params[2];
params[1] = value ? HIDPP_FF_EFFECT_STATE_PLAY : HIDPP_FF_EFFECT_STATE_STOP;
dbg_hid("St%sing playback of effect %d.\n", value?"art":"opp", effect_id);
return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_SET_EFFECT_STATE, params, ARRAY_SIZE(params));
}
static int hidpp_ff_erase_effect(struct input_dev *dev, int effect_id)
{
struct hidpp_ff_private_data *data = dev->ff->private;
u8 slot = 0;
dbg_hid("Erasing effect %d.\n", effect_id);
return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_DESTROY_EFFECT, &slot, 1);
}
static void hidpp_ff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct hidpp_ff_private_data *data = dev->ff->private;
u8 params[HIDPP_AUTOCENTER_PARAMS_LENGTH];
dbg_hid("Setting autocenter to %d.\n", magnitude);
/* start a standard spring effect */
params[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART;
/* zero delay and duration */
params[2] = params[3] = params[4] = params[5] = 0;
/* set coeff to 25% of saturation */
params[8] = params[14] = magnitude >> 11;
params[9] = params[15] = (magnitude >> 3) & 255;
params[6] = params[16] = magnitude >> 9;
params[7] = params[17] = (magnitude >> 1) & 255;
/* zero deadband and center */
params[10] = params[11] = params[12] = params[13] = 0;
hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_AUTOCENTER, HIDPP_FF_DOWNLOAD_EFFECT, params, ARRAY_SIZE(params));
}
static void hidpp_ff_set_gain(struct input_dev *dev, u16 gain)
{
struct hidpp_ff_private_data *data = dev->ff->private;
u8 params[4];
dbg_hid("Setting gain to %d.\n", gain);
params[0] = gain >> 8;
params[1] = gain & 255;
params[2] = 0; /* no boost */
params[3] = 0;
hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_NONE, HIDPP_FF_SET_GLOBAL_GAINS, params, ARRAY_SIZE(params));
}
static ssize_t hidpp_ff_range_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct hid_device *hid = to_hid_device(dev);
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *idev = hidinput->input;
struct hidpp_ff_private_data *data = idev->ff->private;
return scnprintf(buf, PAGE_SIZE, "%u\n", data->range);
}
static ssize_t hidpp_ff_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct hid_device *hid = to_hid_device(dev);
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *idev = hidinput->input;
struct hidpp_ff_private_data *data = idev->ff->private;
u8 params[2];
int range = simple_strtoul(buf, NULL, 10);
range = clamp(range, 180, 900);
params[0] = range >> 8;
params[1] = range & 0x00FF;
hidpp_ff_queue_work(data, -1, HIDPP_FF_SET_APERTURE, params, ARRAY_SIZE(params));
return count;
}
static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, hidpp_ff_range_show, hidpp_ff_range_store);
static void hidpp_ff_destroy(struct ff_device *ff)
{
struct hidpp_ff_private_data *data = ff->private;
struct hid_device *hid = data->hidpp->hid_dev;
hid_info(hid, "Unloading HID++ force feedback.\n");
device_remove_file(&hid->dev, &dev_attr_range);
destroy_workqueue(data->wq);
kfree(data->effect_ids);
}
static int hidpp_ff_init(struct hidpp_device *hidpp,
struct hidpp_ff_private_data *data)
{
struct hid_device *hid = hidpp->hid_dev;
struct hid_input *hidinput;
struct input_dev *dev;
struct usb_device_descriptor *udesc;
u16 bcdDevice;
struct ff_device *ff;
int error, j, num_slots = data->num_effects;
u8 version;
if (!hid_is_usb(hid)) {
hid_err(hid, "device is not USB\n");
return -ENODEV;
}
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
if (!dev) {
hid_err(hid, "Struct input_dev not set!\n");
return -EINVAL;
}
/* Get firmware release */
udesc = &(hid_to_usb_dev(hid)->descriptor);
bcdDevice = le16_to_cpu(udesc->bcdDevice);
version = bcdDevice & 255;
/* Set supported force feedback capabilities */
for (j = 0; hidpp_ff_effects[j] >= 0; j++)
set_bit(hidpp_ff_effects[j], dev->ffbit);
if (version > 1)
for (j = 0; hidpp_ff_effects_v2[j] >= 0; j++)
set_bit(hidpp_ff_effects_v2[j], dev->ffbit);
error = input_ff_create(dev, num_slots);
if (error) {
hid_err(dev, "Failed to create FF device!\n");
return error;
}
/*
* Create a copy of passed data, so we can transfer memory
* ownership to FF core
*/
data = kmemdup(data, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->effect_ids = kcalloc(num_slots, sizeof(int), GFP_KERNEL);
if (!data->effect_ids) {
kfree(data);
return -ENOMEM;
}
data->wq = create_singlethread_workqueue("hidpp-ff-sendqueue");
if (!data->wq) {
kfree(data->effect_ids);
kfree(data);
return -ENOMEM;
}
data->hidpp = hidpp;
data->version = version;
for (j = 0; j < num_slots; j++)
data->effect_ids[j] = -1;
ff = dev->ff;
ff->private = data;
ff->upload = hidpp_ff_upload_effect;
ff->erase = hidpp_ff_erase_effect;
ff->playback = hidpp_ff_playback;
ff->set_gain = hidpp_ff_set_gain;
ff->set_autocenter = hidpp_ff_set_autocenter;
ff->destroy = hidpp_ff_destroy;
/* Create sysfs interface */
error = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range);
if (error)
hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d!\n", error);
/* init the hardware command queue */
atomic_set(&data->workqueue_size, 0);
hid_info(hid, "Force feedback support loaded (firmware release %d).\n",
version);
return 0;
}
/* ************************************************************************** */
/* */
/* Device Support */
/* */
/* ************************************************************************** */
/* -------------------------------------------------------------------------- */
/* Touchpad HID++ devices */
/* -------------------------------------------------------------------------- */
#define WTP_MANUAL_RESOLUTION 39
struct wtp_data {
u16 x_size, y_size;
u8 finger_count;
u8 mt_feature_index;
u8 button_feature_index;
u8 maxcontacts;
bool flip_y;
unsigned int resolution;
};
static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
return -1;
}
static void wtp_populate_input(struct hidpp_device *hidpp,
struct input_dev *input_dev)
{
struct wtp_data *wd = hidpp->private_data;
__set_bit(EV_ABS, input_dev->evbit);
__set_bit(EV_KEY, input_dev->evbit);
__clear_bit(EV_REL, input_dev->evbit);
__clear_bit(EV_LED, input_dev->evbit);
input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0);
input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0);
input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution);
/* Max pressure is not given by the devices, pick one */
input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0);
input_set_capability(input_dev, EV_KEY, BTN_LEFT);
if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)
input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
else
__set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER |
INPUT_MT_DROP_UNUSED);
}
static void wtp_touch_event(struct hidpp_device *hidpp,
struct hidpp_touchpad_raw_xy_finger *touch_report)
{
struct wtp_data *wd = hidpp->private_data;
int slot;
if (!touch_report->finger_id || touch_report->contact_type)
/* no actual data */
return;
slot = input_mt_get_slot_by_key(hidpp->input, touch_report->finger_id);
input_mt_slot(hidpp->input, slot);
input_mt_report_slot_state(hidpp->input, MT_TOOL_FINGER,
touch_report->contact_status);
if (touch_report->contact_status) {
input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_X,
touch_report->x);
input_event(hidpp->input, EV_ABS, ABS_MT_POSITION_Y,
wd->flip_y ? wd->y_size - touch_report->y :
touch_report->y);
input_event(hidpp->input, EV_ABS, ABS_MT_PRESSURE,
touch_report->area);
}
}
static void wtp_send_raw_xy_event(struct hidpp_device *hidpp,
struct hidpp_touchpad_raw_xy *raw)
{
int i;
for (i = 0; i < 2; i++)
wtp_touch_event(hidpp, &(raw->fingers[i]));
if (raw->end_of_frame &&
!(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS))
input_event(hidpp->input, EV_KEY, BTN_LEFT, raw->button);
if (raw->end_of_frame || raw->finger_count <= 2) {
input_mt_sync_frame(hidpp->input);
input_sync(hidpp->input);
}
}
static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data)
{
struct wtp_data *wd = hidpp->private_data;
u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) +
(data[7] >> 4) * (data[7] >> 4)) / 2;
u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) +
(data[13] >> 4) * (data[13] >> 4)) / 2;
struct hidpp_touchpad_raw_xy raw = {
.timestamp = data[1],
.fingers = {
{
.contact_type = 0,
.contact_status = !!data[7],
.x = get_unaligned_le16(&data[3]),
.y = get_unaligned_le16(&data[5]),
.z = c1_area,
.area = c1_area,
.finger_id = data[2],
}, {
.contact_type = 0,
.contact_status = !!data[13],
.x = get_unaligned_le16(&data[9]),
.y = get_unaligned_le16(&data[11]),
.z = c2_area,
.area = c2_area,
.finger_id = data[8],
}
},
.finger_count = wd->maxcontacts,
.spurious_flag = 0,
.end_of_frame = (data[0] >> 7) == 0,
.button = data[0] & 0x01,
};
wtp_send_raw_xy_event(hidpp, &raw);
return 1;
}
static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct wtp_data *wd = hidpp->private_data;
struct hidpp_report *report = (struct hidpp_report *)data;
struct hidpp_touchpad_raw_xy raw;
if (!wd || !hidpp->input)
return 1;
switch (data[0]) {
case 0x02:
if (size < 2) {
hid_err(hdev, "Received HID report of bad size (%d)",
size);
return 1;
}
if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
input_event(hidpp->input, EV_KEY, BTN_LEFT,
!!(data[1] & 0x01));
input_event(hidpp->input, EV_KEY, BTN_RIGHT,
!!(data[1] & 0x02));
input_sync(hidpp->input);
return 0;
} else {
if (size < 21)
return 1;
return wtp_mouse_raw_xy_event(hidpp, &data[7]);
}
case REPORT_ID_HIDPP_LONG:
/* size is already checked in hidpp_raw_event. */
if ((report->fap.feature_index != wd->mt_feature_index) ||
(report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
return 1;
hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw);
wtp_send_raw_xy_event(hidpp, &raw);
return 0;
}
return 0;
}
static int wtp_get_config(struct hidpp_device *hidpp)
{
struct wtp_data *wd = hidpp->private_data;
struct hidpp_touchpad_raw_info raw_info = {0};
u8 feature_type;
int ret;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY,
&wd->mt_feature_index, &feature_type);
if (ret)
/* means that the device is not powered up */
return ret;
ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index,
&raw_info);
if (ret)
return ret;
wd->x_size = raw_info.x_size;
wd->y_size = raw_info.y_size;
wd->maxcontacts = raw_info.maxcontacts;
wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT;
wd->resolution = raw_info.res;
if (!wd->resolution)
wd->resolution = WTP_MANUAL_RESOLUTION;
return 0;
}
static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct wtp_data *wd;
wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data),
GFP_KERNEL);
if (!wd)
return -ENOMEM;
hidpp->private_data = wd;
return 0;
};
static int wtp_connect(struct hid_device *hdev, bool connected)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct wtp_data *wd = hidpp->private_data;
int ret;
if (!wd->x_size) {
ret = wtp_get_config(hidpp);
if (ret) {
hid_err(hdev, "Can not get wtp config: %d\n", ret);
return ret;
}
}
return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index,
true, true);
}
/* ------------------------------------------------------------------------- */
/* Logitech M560 devices */
/* ------------------------------------------------------------------------- */
/*
* Logitech M560 protocol overview
*
* The Logitech M560 mouse, is designed for windows 8. When the middle and/or
* the sides buttons are pressed, it sends some keyboard keys events
* instead of buttons ones.
* To complicate things further, the middle button keys sequence
* is different from the odd press and the even press.
*
* forward button -> Super_R
* backward button -> Super_L+'d' (press only)
* middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only)
* 2nd time: left-click (press only)
* NB: press-only means that when the button is pressed, the
* KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated
* together sequentially; instead when the button is released, no event is
* generated !
*
* With the command
* 10<xx>0a 3500af03 (where <xx> is the mouse id),
* the mouse reacts differently:
* - it never sends a keyboard key event
* - for the three mouse button it sends:
* middle button press 11<xx>0a 3500af00...
* side 1 button (forward) press 11<xx>0a 3500b000...
* side 2 button (backward) press 11<xx>0a 3500ae00...
* middle/side1/side2 button release 11<xx>0a 35000000...
*/
static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03};
/* how buttons are mapped in the report */
#define M560_MOUSE_BTN_LEFT 0x01
#define M560_MOUSE_BTN_RIGHT 0x02
#define M560_MOUSE_BTN_WHEEL_LEFT 0x08
#define M560_MOUSE_BTN_WHEEL_RIGHT 0x10
#define M560_SUB_ID 0x0a
#define M560_BUTTON_MODE_REGISTER 0x35
static int m560_send_config_command(struct hid_device *hdev, bool connected)
{
struct hidpp_report response;
struct hidpp_device *hidpp_dev;
hidpp_dev = hid_get_drvdata(hdev);
return hidpp_send_rap_command_sync(
hidpp_dev,
REPORT_ID_HIDPP_SHORT,
M560_SUB_ID,
M560_BUTTON_MODE_REGISTER,
(u8 *)m560_config_parameter,
sizeof(m560_config_parameter),
&response
);
}
static int m560_raw_event(struct hid_device *hdev, u8 *data, int size)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
/* sanity check */
if (!hidpp->input) {
hid_err(hdev, "error in parameter\n");
return -EINVAL;
}
if (size < 7) {
hid_err(hdev, "error in report\n");
return 0;
}
if (data[0] == REPORT_ID_HIDPP_LONG &&
data[2] == M560_SUB_ID && data[6] == 0x00) {
/*
* m560 mouse report for middle, forward and backward button
*
* data[0] = 0x11
* data[1] = device-id
* data[2] = 0x0a
* data[5] = 0xaf -> middle
* 0xb0 -> forward
* 0xae -> backward
* 0x00 -> release all
* data[6] = 0x00
*/
switch (data[5]) {
case 0xaf:
input_report_key(hidpp->input, BTN_MIDDLE, 1);
break;
case 0xb0:
input_report_key(hidpp->input, BTN_FORWARD, 1);
break;
case 0xae:
input_report_key(hidpp->input, BTN_BACK, 1);
break;
case 0x00:
input_report_key(hidpp->input, BTN_BACK, 0);
input_report_key(hidpp->input, BTN_FORWARD, 0);
input_report_key(hidpp->input, BTN_MIDDLE, 0);
break;
default:
hid_err(hdev, "error in report\n");
return 0;
}
input_sync(hidpp->input);
} else if (data[0] == 0x02) {
/*
* Logitech M560 mouse report
*
* data[0] = type (0x02)
* data[1..2] = buttons
* data[3..5] = xy
* data[6] = wheel
*/
int v;
input_report_key(hidpp->input, BTN_LEFT,
!!(data[1] & M560_MOUSE_BTN_LEFT));
input_report_key(hidpp->input, BTN_RIGHT,
!!(data[1] & M560_MOUSE_BTN_RIGHT));
if (data[1] & M560_MOUSE_BTN_WHEEL_LEFT) {
input_report_rel(hidpp->input, REL_HWHEEL, -1);
input_report_rel(hidpp->input, REL_HWHEEL_HI_RES,
-120);
} else if (data[1] & M560_MOUSE_BTN_WHEEL_RIGHT) {
input_report_rel(hidpp->input, REL_HWHEEL, 1);
input_report_rel(hidpp->input, REL_HWHEEL_HI_RES,
120);
}
v = hid_snto32(hid_field_extract(hdev, data+3, 0, 12), 12);
input_report_rel(hidpp->input, REL_X, v);
v = hid_snto32(hid_field_extract(hdev, data+3, 12, 12), 12);
input_report_rel(hidpp->input, REL_Y, v);
v = hid_snto32(data[6], 8);
if (v != 0)
hidpp_scroll_counter_handle_scroll(hidpp->input,
&hidpp->vertical_wheel_counter, v);
input_sync(hidpp->input);
}
return 1;
}
static void m560_populate_input(struct hidpp_device *hidpp,
struct input_dev *input_dev)
{
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(BTN_MIDDLE, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(EV_REL, input_dev->evbit);
__set_bit(REL_X, input_dev->relbit);
__set_bit(REL_Y, input_dev->relbit);
__set_bit(REL_WHEEL, input_dev->relbit);
__set_bit(REL_HWHEEL, input_dev->relbit);
__set_bit(REL_WHEEL_HI_RES, input_dev->relbit);
__set_bit(REL_HWHEEL_HI_RES, input_dev->relbit);
}
static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
return -1;
}
/* ------------------------------------------------------------------------- */
/* Logitech K400 devices */
/* ------------------------------------------------------------------------- */
/*
* The Logitech K400 keyboard has an embedded touchpad which is seen
* as a mouse from the OS point of view. There is a hardware shortcut to disable
* tap-to-click but the setting is not remembered accross reset, annoying some
* users.
*
* We can toggle this feature from the host by using the feature 0x6010:
* Touchpad FW items
*/
struct k400_private_data {
u8 feature_index;
};
static int k400_disable_tap_to_click(struct hidpp_device *hidpp)
{
struct k400_private_data *k400 = hidpp->private_data;
struct hidpp_touchpad_fw_items items = {};
int ret;
u8 feature_type;
if (!k400->feature_index) {
ret = hidpp_root_get_feature(hidpp,
HIDPP_PAGE_TOUCHPAD_FW_ITEMS,
&k400->feature_index, &feature_type);
if (ret)
/* means that the device is not powered up */
return ret;
}
ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items);
if (ret)
return ret;
return 0;
}
static int k400_allocate(struct hid_device *hdev)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct k400_private_data *k400;
k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data),
GFP_KERNEL);
if (!k400)
return -ENOMEM;
hidpp->private_data = k400;
return 0;
};
static int k400_connect(struct hid_device *hdev, bool connected)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!disable_tap_to_click)
return 0;
return k400_disable_tap_to_click(hidpp);
}
/* ------------------------------------------------------------------------- */
/* Logitech G920 Driving Force Racing Wheel for Xbox One */
/* ------------------------------------------------------------------------- */
#define HIDPP_PAGE_G920_FORCE_FEEDBACK 0x8123
static int g920_ff_set_autocenter(struct hidpp_device *hidpp,
struct hidpp_ff_private_data *data)
{
struct hidpp_report response;
u8 params[HIDPP_AUTOCENTER_PARAMS_LENGTH] = {
[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART,
};
int ret;
/* initialize with zero autocenter to get wheel in usable state */
dbg_hid("Setting autocenter to 0.\n");
ret = hidpp_send_fap_command_sync(hidpp, data->feature_index,
HIDPP_FF_DOWNLOAD_EFFECT,
params, ARRAY_SIZE(params),
&response);
if (ret)
hid_warn(hidpp->hid_dev, "Failed to autocenter device!\n");
else
data->slot_autocenter = response.fap.params[0];
return ret;
}
static int g920_get_config(struct hidpp_device *hidpp,
struct hidpp_ff_private_data *data)
{
struct hidpp_report response;
u8 feature_type;
int ret;
memset(data, 0, sizeof(*data));
/* Find feature and store for later use */
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK,
&data->feature_index, &feature_type);
if (ret)
return ret;
/* Read number of slots available in device */
ret = hidpp_send_fap_command_sync(hidpp, data->feature_index,
HIDPP_FF_GET_INFO,
NULL, 0,
&response);
if (ret) {
if (ret < 0)
return ret;
hid_err(hidpp->hid_dev,
"%s: received protocol error 0x%02x\n", __func__, ret);
return -EPROTO;
}
data->num_effects = response.fap.params[0] - HIDPP_FF_RESERVED_SLOTS;
/* reset all forces */
ret = hidpp_send_fap_command_sync(hidpp, data->feature_index,
HIDPP_FF_RESET_ALL,
NULL, 0,
&response);
if (ret)
hid_warn(hidpp->hid_dev, "Failed to reset all forces!\n");
ret = hidpp_send_fap_command_sync(hidpp, data->feature_index,
HIDPP_FF_GET_APERTURE,
NULL, 0,
&response);
if (ret) {
hid_warn(hidpp->hid_dev,
"Failed to read range from device!\n");
}
data->range = ret ?
900 : get_unaligned_be16(&response.fap.params[0]);
/* Read the current gain values */
ret = hidpp_send_fap_command_sync(hidpp, data->feature_index,
HIDPP_FF_GET_GLOBAL_GAINS,
NULL, 0,
&response);
if (ret)
hid_warn(hidpp->hid_dev,
"Failed to read gain values from device!\n");
data->gain = ret ?
0xffff : get_unaligned_be16(&response.fap.params[0]);
/* ignore boost value at response.fap.params[2] */
return g920_ff_set_autocenter(hidpp, data);
}
/* -------------------------------------------------------------------------- */
/* Logitech Dinovo Mini keyboard with builtin touchpad */
/* -------------------------------------------------------------------------- */
#define DINOVO_MINI_PRODUCT_ID 0xb30c
static int lg_dinovo_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x00d: lg_map_key_clear(KEY_MEDIA); break;
default:
return 0;
}
return 1;
}
/* -------------------------------------------------------------------------- */
/* HID++1.0 devices which use HID++ reports for their wheels */
/* -------------------------------------------------------------------------- */
static int hidpp10_wheel_connect(struct hidpp_device *hidpp)
{
return hidpp10_set_register(hidpp, HIDPP_REG_ENABLE_REPORTS, 0,
HIDPP_ENABLE_WHEEL_REPORT | HIDPP_ENABLE_HWHEEL_REPORT,
HIDPP_ENABLE_WHEEL_REPORT | HIDPP_ENABLE_HWHEEL_REPORT);
}
static int hidpp10_wheel_raw_event(struct hidpp_device *hidpp,
u8 *data, int size)
{
s8 value, hvalue;
if (!hidpp->input)
return -EINVAL;
if (size < 7)
return 0;
if (data[0] != REPORT_ID_HIDPP_SHORT || data[2] != HIDPP_SUB_ID_ROLLER)
return 0;
value = data[3];
hvalue = data[4];
input_report_rel(hidpp->input, REL_WHEEL, value);
input_report_rel(hidpp->input, REL_WHEEL_HI_RES, value * 120);
input_report_rel(hidpp->input, REL_HWHEEL, hvalue);
input_report_rel(hidpp->input, REL_HWHEEL_HI_RES, hvalue * 120);
input_sync(hidpp->input);
return 1;
}
static void hidpp10_wheel_populate_input(struct hidpp_device *hidpp,
struct input_dev *input_dev)
{
__set_bit(EV_REL, input_dev->evbit);
__set_bit(REL_WHEEL, input_dev->relbit);
__set_bit(REL_WHEEL_HI_RES, input_dev->relbit);
__set_bit(REL_HWHEEL, input_dev->relbit);
__set_bit(REL_HWHEEL_HI_RES, input_dev->relbit);
}
/* -------------------------------------------------------------------------- */
/* HID++1.0 mice which use HID++ reports for extra mouse buttons */
/* -------------------------------------------------------------------------- */
static int hidpp10_extra_mouse_buttons_connect(struct hidpp_device *hidpp)
{
return hidpp10_set_register(hidpp, HIDPP_REG_ENABLE_REPORTS, 0,
HIDPP_ENABLE_MOUSE_EXTRA_BTN_REPORT,
HIDPP_ENABLE_MOUSE_EXTRA_BTN_REPORT);
}
static int hidpp10_extra_mouse_buttons_raw_event(struct hidpp_device *hidpp,
u8 *data, int size)
{
int i;
if (!hidpp->input)
return -EINVAL;
if (size < 7)
return 0;
if (data[0] != REPORT_ID_HIDPP_SHORT ||
data[2] != HIDPP_SUB_ID_MOUSE_EXTRA_BTNS)
return 0;
/*
* Buttons are either delivered through the regular mouse report *or*
* through the extra buttons report. At least for button 6 how it is
* delivered differs per receiver firmware version. Even receivers with
* the same usb-id show different behavior, so we handle both cases.
*/
for (i = 0; i < 8; i++)
input_report_key(hidpp->input, BTN_MOUSE + i,
(data[3] & (1 << i)));
/* Some mice report events on button 9+, use BTN_MISC */
for (i = 0; i < 8; i++)
input_report_key(hidpp->input, BTN_MISC + i,
(data[4] & (1 << i)));
input_sync(hidpp->input);
return 1;
}
static void hidpp10_extra_mouse_buttons_populate_input(
struct hidpp_device *hidpp, struct input_dev *input_dev)
{
/* BTN_MOUSE - BTN_MOUSE+7 are set already by the descriptor */
__set_bit(BTN_0, input_dev->keybit);
__set_bit(BTN_1, input_dev->keybit);
__set_bit(BTN_2, input_dev->keybit);
__set_bit(BTN_3, input_dev->keybit);
__set_bit(BTN_4, input_dev->keybit);
__set_bit(BTN_5, input_dev->keybit);
__set_bit(BTN_6, input_dev->keybit);
__set_bit(BTN_7, input_dev->keybit);
}
/* -------------------------------------------------------------------------- */
/* HID++1.0 kbds which only report 0x10xx consumer usages through sub-id 0x03 */
/* -------------------------------------------------------------------------- */
/* Find the consumer-page input report desc and change Maximums to 0x107f */
static u8 *hidpp10_consumer_keys_report_fixup(struct hidpp_device *hidpp,
u8 *_rdesc, unsigned int *rsize)
{
/* Note 0 terminated so we can use strnstr to search for this. */
static const char consumer_rdesc_start[] = {
0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */
0x09, 0x01, /* USAGE (Consumer Control) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x03, /* REPORT_ID = 3 */
0x75, 0x10, /* REPORT_SIZE (16) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x15, 0x01, /* LOGICAL_MIN (1) */
0x26, 0x00 /* LOGICAL_MAX (... */
};
char *consumer_rdesc, *rdesc = (char *)_rdesc;
unsigned int size;
consumer_rdesc = strnstr(rdesc, consumer_rdesc_start, *rsize);
size = *rsize - (consumer_rdesc - rdesc);
if (consumer_rdesc && size >= 25) {
consumer_rdesc[15] = 0x7f;
consumer_rdesc[16] = 0x10;
consumer_rdesc[20] = 0x7f;
consumer_rdesc[21] = 0x10;
}
return _rdesc;
}
static int hidpp10_consumer_keys_connect(struct hidpp_device *hidpp)
{
return hidpp10_set_register(hidpp, HIDPP_REG_ENABLE_REPORTS, 0,
HIDPP_ENABLE_CONSUMER_REPORT,
HIDPP_ENABLE_CONSUMER_REPORT);
}
static int hidpp10_consumer_keys_raw_event(struct hidpp_device *hidpp,
u8 *data, int size)
{
u8 consumer_report[5];
if (size < 7)
return 0;
if (data[0] != REPORT_ID_HIDPP_SHORT ||
data[2] != HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS)
return 0;
/*
* Build a normal consumer report (3) out of the data, this detour
* is necessary to get some keyboards to report their 0x10xx usages.
*/
consumer_report[0] = 0x03;
memcpy(&consumer_report[1], &data[3], 4);
/* We are called from atomic context */
hid_report_raw_event(hidpp->hid_dev, HID_INPUT_REPORT,
consumer_report, 5, 1);
return 1;
}
/* -------------------------------------------------------------------------- */
/* High-resolution scroll wheels */
/* -------------------------------------------------------------------------- */
static int hi_res_scroll_enable(struct hidpp_device *hidpp)
{
int ret;
u8 multiplier = 1;
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL) {
ret = hidpp_hrw_set_wheel_mode(hidpp, false, true, false);
if (ret == 0)
ret = hidpp_hrw_get_wheel_capability(hidpp, &multiplier);
} else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL) {
ret = hidpp_hrs_set_highres_scrolling_mode(hidpp, true,
&multiplier);
} else /* if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL) */ {
ret = hidpp10_enable_scrolling_acceleration(hidpp);
multiplier = 8;
}
if (ret) {
hid_dbg(hidpp->hid_dev,
"Could not enable hi-res scrolling: %d\n", ret);
return ret;
}
if (multiplier == 0) {
hid_dbg(hidpp->hid_dev,
"Invalid multiplier 0 from device, setting it to 1\n");
multiplier = 1;
}
hidpp->vertical_wheel_counter.wheel_multiplier = multiplier;
hid_dbg(hidpp->hid_dev, "wheel multiplier = %d\n", multiplier);
return 0;
}
static int hidpp_initialize_hires_scroll(struct hidpp_device *hidpp)
{
int ret;
unsigned long capabilities;
capabilities = hidpp->capabilities;
if (hidpp->protocol_major >= 2) {
u8 feature_index;
u8 feature_type;
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
&feature_index, &feature_type);
if (!ret) {
hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL;
hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scroll wheel\n");
return 0;
}
ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HI_RESOLUTION_SCROLLING,
&feature_index, &feature_type);
if (!ret) {
hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL;
hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scrolling\n");
}
} else {
/* We cannot detect fast scrolling support on HID++ 1.0 devices */
if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) {
hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL;
hid_dbg(hidpp->hid_dev, "Detected HID++ 1.0 fast scroll\n");
}
}
if (hidpp->capabilities == capabilities)
hid_dbg(hidpp->hid_dev, "Did not detect HID++ hi-res scrolling hardware support\n");
return 0;
}
/* -------------------------------------------------------------------------- */
/* Generic HID++ devices */
/* -------------------------------------------------------------------------- */
static u8 *hidpp_report_fixup(struct hid_device *hdev, u8 *rdesc,
unsigned int *rsize)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!hidpp)
return rdesc;
/* For 27 MHz keyboards the quirk gets set after hid_parse. */
if (hdev->group == HID_GROUP_LOGITECH_27MHZ_DEVICE ||
(hidpp->quirks & HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS))
rdesc = hidpp10_consumer_keys_report_fixup(hidpp, rdesc, rsize);
return rdesc;
}
static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!hidpp)
return 0;
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
return wtp_input_mapping(hdev, hi, field, usage, bit, max);
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 &&
field->application != HID_GD_MOUSE)
return m560_input_mapping(hdev, hi, field, usage, bit, max);
if (hdev->product == DINOVO_MINI_PRODUCT_ID)
return lg_dinovo_input_mapping(hdev, hi, field, usage, bit, max);
return 0;
}
static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!hidpp)
return 0;
/* Ensure that Logitech G920 is not given a default fuzz/flat value */
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
if (usage->type == EV_ABS && (usage->code == ABS_X ||
usage->code == ABS_Y || usage->code == ABS_Z ||
usage->code == ABS_RZ)) {
field->application = HID_GD_MULTIAXIS;
}
}
return 0;
}
static void hidpp_populate_input(struct hidpp_device *hidpp,
struct input_dev *input)
{
hidpp->input = input;
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
wtp_populate_input(hidpp, input);
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
m560_populate_input(hidpp, input);
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_WHEELS)
hidpp10_wheel_populate_input(hidpp, input);
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS)
hidpp10_extra_mouse_buttons_populate_input(hidpp, input);
}
static int hidpp_input_configured(struct hid_device *hdev,
struct hid_input *hidinput)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct input_dev *input = hidinput->input;
if (!hidpp)
return 0;
hidpp_populate_input(hidpp, input);
return 0;
}
static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data,
int size)
{
struct hidpp_report *question = hidpp->send_receive_buf;
struct hidpp_report *answer = hidpp->send_receive_buf;
struct hidpp_report *report = (struct hidpp_report *)data;
int ret;
/*
* If the mutex is locked then we have a pending answer from a
* previously sent command.
*/
if (unlikely(mutex_is_locked(&hidpp->send_mutex))) {
/*
* Check for a correct hidpp20 answer or the corresponding
* error
*/
if (hidpp_match_answer(question, report) ||
hidpp_match_error(question, report)) {
*answer = *report;
hidpp->answer_available = true;
wake_up(&hidpp->wait);
/*
* This was an answer to a command that this driver sent
* We return 1 to hid-core to avoid forwarding the
* command upstream as it has been treated by the driver
*/
return 1;
}
}
if (unlikely(hidpp_report_is_connect_event(hidpp, report))) {
atomic_set(&hidpp->connected,
!(report->rap.params[0] & (1 << 6)));
if (schedule_work(&hidpp->work) == 0)
dbg_hid("%s: connect event already queued\n", __func__);
return 1;
}
if (hidpp->hid_dev->group == HID_GROUP_LOGITECH_27MHZ_DEVICE &&
data[0] == REPORT_ID_HIDPP_SHORT &&
data[2] == HIDPP_SUB_ID_USER_IFACE_EVENT &&
(data[3] & HIDPP_USER_IFACE_EVENT_ENCRYPTION_KEY_LOST)) {
dev_err_ratelimited(&hidpp->hid_dev->dev,
"Error the keyboard's wireless encryption key has been lost, your keyboard will not work unless you re-configure encryption.\n");
dev_err_ratelimited(&hidpp->hid_dev->dev,
"See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
}
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
ret = hidpp20_battery_event_1000(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp20_battery_event_1004(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp_solar_battery_event(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp20_battery_voltage_event(hidpp, data, size);
if (ret != 0)
return ret;
ret = hidpp20_adc_measurement_event_1f20(hidpp, data, size);
if (ret != 0)
return ret;
}
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
ret = hidpp10_battery_event(hidpp, data, size);
if (ret != 0)
return ret;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_WHEELS) {
ret = hidpp10_wheel_raw_event(hidpp, data, size);
if (ret != 0)
return ret;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS) {
ret = hidpp10_extra_mouse_buttons_raw_event(hidpp, data, size);
if (ret != 0)
return ret;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS) {
ret = hidpp10_consumer_keys_raw_event(hidpp, data, size);
if (ret != 0)
return ret;
}
return 0;
}
static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
int ret = 0;
if (!hidpp)
return 0;
/* Generic HID++ processing. */
switch (data[0]) {
case REPORT_ID_HIDPP_VERY_LONG:
if (size != hidpp->very_long_report_length) {
hid_err(hdev, "received hid++ report of bad size (%d)",
size);
return 1;
}
ret = hidpp_raw_hidpp_event(hidpp, data, size);
break;
case REPORT_ID_HIDPP_LONG:
if (size != HIDPP_REPORT_LONG_LENGTH) {
hid_err(hdev, "received hid++ report of bad size (%d)",
size);
return 1;
}
ret = hidpp_raw_hidpp_event(hidpp, data, size);
break;
case REPORT_ID_HIDPP_SHORT:
if (size != HIDPP_REPORT_SHORT_LENGTH) {
hid_err(hdev, "received hid++ report of bad size (%d)",
size);
return 1;
}
ret = hidpp_raw_hidpp_event(hidpp, data, size);
break;
}
/* If no report is available for further processing, skip calling
* raw_event of subclasses. */
if (ret != 0)
return ret;
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)
return wtp_raw_event(hdev, data, size);
else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560)
return m560_raw_event(hdev, data, size);
return 0;
}
static int hidpp_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
/* This function will only be called for scroll events, due to the
* restriction imposed in hidpp_usages.
*/
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
struct hidpp_scroll_counter *counter;
if (!hidpp)
return 0;
counter = &hidpp->vertical_wheel_counter;
/* A scroll event may occur before the multiplier has been retrieved or
* the input device set, or high-res scroll enabling may fail. In such
* cases we must return early (falling back to default behaviour) to
* avoid a crash in hidpp_scroll_counter_handle_scroll.
*/
if (!(hidpp->capabilities & HIDPP_CAPABILITY_HI_RES_SCROLL)
|| value == 0 || hidpp->input == NULL
|| counter->wheel_multiplier == 0)
return 0;
hidpp_scroll_counter_handle_scroll(hidpp->input, counter, value);
return 1;
}
static int hidpp_initialize_battery(struct hidpp_device *hidpp)
{
static atomic_t battery_no = ATOMIC_INIT(0);
struct power_supply_config cfg = { .drv_data = hidpp };
struct power_supply_desc *desc = &hidpp->battery.desc;
enum power_supply_property *battery_props;
struct hidpp_battery *battery;
unsigned int num_battery_props;
unsigned long n;
int ret;
if (hidpp->battery.ps)
return 0;
hidpp->battery.feature_index = 0xff;
hidpp->battery.solar_feature_index = 0xff;
hidpp->battery.voltage_feature_index = 0xff;
hidpp->battery.adc_measurement_feature_index = 0xff;
if (hidpp->protocol_major >= 2) {
if (hidpp->quirks & HIDPP_QUIRK_CLASS_K750)
ret = hidpp_solar_request_battery_event(hidpp);
else {
/* we only support one battery feature right now, so let's
first check the ones that support battery level first
and leave voltage for last */
ret = hidpp20_query_battery_info_1000(hidpp);
if (ret)
ret = hidpp20_query_battery_info_1004(hidpp);
if (ret)
ret = hidpp20_query_battery_voltage_info(hidpp);
if (ret)
ret = hidpp20_query_adc_measurement_info_1f20(hidpp);
}
if (ret)
return ret;
hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_BATTERY;
} else {
ret = hidpp10_query_battery_status(hidpp);
if (ret) {
ret = hidpp10_query_battery_mileage(hidpp);
if (ret)
return -ENOENT;
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE;
} else {
hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS;
}
hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_BATTERY;
}
battery_props = devm_kmemdup(&hidpp->hid_dev->dev,
hidpp_battery_props,
sizeof(hidpp_battery_props),
GFP_KERNEL);
if (!battery_props)
return -ENOMEM;
num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 3;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE ||
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE ||
hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_VOLTAGE ||
hidpp->capabilities & HIDPP_CAPABILITY_ADC_MEASUREMENT)
battery_props[num_battery_props++] =
POWER_SUPPLY_PROP_CAPACITY;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS)
battery_props[num_battery_props++] =
POWER_SUPPLY_PROP_CAPACITY_LEVEL;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_VOLTAGE ||
hidpp->capabilities & HIDPP_CAPABILITY_ADC_MEASUREMENT)
battery_props[num_battery_props++] =
POWER_SUPPLY_PROP_VOLTAGE_NOW;
battery = &hidpp->battery;
n = atomic_inc_return(&battery_no) - 1;
desc->properties = battery_props;
desc->num_properties = num_battery_props;
desc->get_property = hidpp_battery_get_property;
sprintf(battery->name, "hidpp_battery_%ld", n);
desc->name = battery->name;
desc->type = POWER_SUPPLY_TYPE_BATTERY;
desc->use_for_apm = 0;
battery->ps = devm_power_supply_register(&hidpp->hid_dev->dev,
&battery->desc,
&cfg);
if (IS_ERR(battery->ps))
return PTR_ERR(battery->ps);
power_supply_powers(battery->ps, &hidpp->hid_dev->dev);
return ret;
}
static void hidpp_overwrite_name(struct hid_device *hdev)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
char *name;
if (hidpp->protocol_major < 2)
return;
name = hidpp_get_device_name(hidpp);
if (!name) {
hid_err(hdev, "unable to retrieve the name of the device");
} else {
dbg_hid("HID++: Got name: %s\n", name);
snprintf(hdev->name, sizeof(hdev->name), "%s", name);
}
kfree(name);
}
static int hidpp_input_open(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
return hid_hw_open(hid);
}
static void hidpp_input_close(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
hid_hw_close(hid);
}
static struct input_dev *hidpp_allocate_input(struct hid_device *hdev)
{
struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev);
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!input_dev)
return NULL;
input_set_drvdata(input_dev, hdev);
input_dev->open = hidpp_input_open;
input_dev->close = hidpp_input_close;
input_dev->name = hidpp->name;
input_dev->phys = hdev->phys;
input_dev->uniq = hdev->uniq;
input_dev->id.bustype = hdev->bus;
input_dev->id.vendor = hdev->vendor;
input_dev->id.product = hdev->product;
input_dev->id.version = hdev->version;
input_dev->dev.parent = &hdev->dev;
return input_dev;
}
static void hidpp_connect_event(struct hidpp_device *hidpp)
{
struct hid_device *hdev = hidpp->hid_dev;
int ret = 0;
bool connected = atomic_read(&hidpp->connected);
struct input_dev *input;
char *name, *devm_name;
if (!connected) {
if (hidpp->battery.ps) {
hidpp->battery.online = false;
hidpp->battery.status = POWER_SUPPLY_STATUS_UNKNOWN;
hidpp->battery.level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
power_supply_changed(hidpp->battery.ps);
}
return;
}
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
ret = wtp_connect(hdev, connected);
if (ret)
return;
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) {
ret = m560_send_config_command(hdev, connected);
if (ret)
return;
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
ret = k400_connect(hdev, connected);
if (ret)
return;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_WHEELS) {
ret = hidpp10_wheel_connect(hidpp);
if (ret)
return;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS) {
ret = hidpp10_extra_mouse_buttons_connect(hidpp);
if (ret)
return;
}
if (hidpp->quirks & HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS) {
ret = hidpp10_consumer_keys_connect(hidpp);
if (ret)
return;
}
/* the device is already connected, we can ask for its name and
* protocol */
if (!hidpp->protocol_major) {
ret = hidpp_root_get_protocol_version(hidpp);
if (ret) {
hid_err(hdev, "Can not get the protocol version.\n");
return;
}
}
if (hidpp->name == hdev->name && hidpp->protocol_major >= 2) {
name = hidpp_get_device_name(hidpp);
if (name) {
devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s", name);
kfree(name);
if (!devm_name)
return;
hidpp->name = devm_name;
}
}
hidpp_initialize_battery(hidpp);
if (!hid_is_usb(hidpp->hid_dev))
hidpp_initialize_hires_scroll(hidpp);
/* forward current battery state */
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
hidpp10_enable_battery_reporting(hidpp);
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
hidpp10_query_battery_mileage(hidpp);
else
hidpp10_query_battery_status(hidpp);
} else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_VOLTAGE)
hidpp20_query_battery_voltage_info(hidpp);
else if (hidpp->capabilities & HIDPP_CAPABILITY_UNIFIED_BATTERY)
hidpp20_query_battery_info_1004(hidpp);
else if (hidpp->capabilities & HIDPP_CAPABILITY_ADC_MEASUREMENT)
hidpp20_query_adc_measurement_info_1f20(hidpp);
else
hidpp20_query_battery_info_1000(hidpp);
}
if (hidpp->battery.ps)
power_supply_changed(hidpp->battery.ps);
if (hidpp->capabilities & HIDPP_CAPABILITY_HI_RES_SCROLL)
hi_res_scroll_enable(hidpp);
if (!(hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) || hidpp->delayed_input)
/* if the input nodes are already created, we can stop now */
return;
input = hidpp_allocate_input(hdev);
if (!input) {
hid_err(hdev, "cannot allocate new input device: %d\n", ret);
return;
}
hidpp_populate_input(hidpp, input);
ret = input_register_device(input);
if (ret) {
input_free_device(input);
return;
}
hidpp->delayed_input = input;
}
static DEVICE_ATTR(builtin_power_supply, 0000, NULL, NULL);
static struct attribute *sysfs_attrs[] = {
&dev_attr_builtin_power_supply.attr,
NULL
};
static const struct attribute_group ps_attribute_group = {
.attrs = sysfs_attrs
};
static int hidpp_get_report_length(struct hid_device *hdev, int id)
{
struct hid_report_enum *re;
struct hid_report *report;
re = &(hdev->report_enum[HID_OUTPUT_REPORT]);
report = re->report_id_hash[id];
if (!report)
return 0;
return report->field[0]->report_count + 1;
}
static u8 hidpp_validate_device(struct hid_device *hdev)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
int id, report_length;
u8 supported_reports = 0;
id = REPORT_ID_HIDPP_SHORT;
report_length = hidpp_get_report_length(hdev, id);
if (report_length) {
if (report_length < HIDPP_REPORT_SHORT_LENGTH)
goto bad_device;
supported_reports |= HIDPP_REPORT_SHORT_SUPPORTED;
}
id = REPORT_ID_HIDPP_LONG;
report_length = hidpp_get_report_length(hdev, id);
if (report_length) {
if (report_length < HIDPP_REPORT_LONG_LENGTH)
goto bad_device;
supported_reports |= HIDPP_REPORT_LONG_SUPPORTED;
}
id = REPORT_ID_HIDPP_VERY_LONG;
report_length = hidpp_get_report_length(hdev, id);
if (report_length) {
if (report_length < HIDPP_REPORT_LONG_LENGTH ||
report_length > HIDPP_REPORT_VERY_LONG_MAX_LENGTH)
goto bad_device;
supported_reports |= HIDPP_REPORT_VERY_LONG_SUPPORTED;
hidpp->very_long_report_length = report_length;
}
return supported_reports;
bad_device:
hid_warn(hdev, "not enough values in hidpp report %d\n", id);
return false;
}
static bool hidpp_application_equals(struct hid_device *hdev,
unsigned int application)
{
struct list_head *report_list;
struct hid_report *report;
report_list = &hdev->report_enum[HID_INPUT_REPORT].report_list;
report = list_first_entry_or_null(report_list, struct hid_report, list);
return report && report->application == application;
}
static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct hidpp_device *hidpp;
int ret;
bool connected;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
struct hidpp_ff_private_data data;
bool will_restart = false;
/* report_fixup needs drvdata to be set before we call hid_parse */
hidpp = devm_kzalloc(&hdev->dev, sizeof(*hidpp), GFP_KERNEL);
if (!hidpp)
return -ENOMEM;
hidpp->hid_dev = hdev;
hidpp->name = hdev->name;
hidpp->quirks = id->driver_data;
hid_set_drvdata(hdev, hidpp);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "%s:parse failed\n", __func__);
return ret;
}
/*
* Make sure the device is HID++ capable, otherwise treat as generic HID
*/
hidpp->supported_reports = hidpp_validate_device(hdev);
if (!hidpp->supported_reports) {
hid_set_drvdata(hdev, NULL);
devm_kfree(&hdev->dev, hidpp);
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
if (id->group == HID_GROUP_LOGITECH_DJ_DEVICE)
hidpp->quirks |= HIDPP_QUIRK_UNIFYING;
if (id->group == HID_GROUP_LOGITECH_27MHZ_DEVICE &&
hidpp_application_equals(hdev, HID_GD_MOUSE))
hidpp->quirks |= HIDPP_QUIRK_HIDPP_WHEELS |
HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS;
if (id->group == HID_GROUP_LOGITECH_27MHZ_DEVICE &&
hidpp_application_equals(hdev, HID_GD_KEYBOARD))
hidpp->quirks |= HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS;
if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
ret = wtp_allocate(hdev, id);
if (ret)
return ret;
} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) {
ret = k400_allocate(hdev);
if (ret)
return ret;
}
if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT ||
hidpp->quirks & HIDPP_QUIRK_UNIFYING)
will_restart = true;
INIT_WORK(&hidpp->work, delayed_work_cb);
mutex_init(&hidpp->send_mutex);
init_waitqueue_head(&hidpp->wait);
/* indicates we are handling the battery properties in the kernel */
ret = sysfs_create_group(&hdev->dev.kobj, &ps_attribute_group);
if (ret)
hid_warn(hdev, "Cannot allocate sysfs group for %s\n",
hdev->name);
/*
* Plain USB connections need to actually call start and open
* on the transport driver to allow incoming data.
*/
ret = hid_hw_start(hdev, will_restart ? 0 : connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto hid_hw_start_fail;
}
ret = hid_hw_open(hdev);
if (ret < 0) {
dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
__func__, ret);
goto hid_hw_open_fail;
}
/* Allow incoming packets */
hid_device_io_start(hdev);
if (hidpp->quirks & HIDPP_QUIRK_UNIFYING)
hidpp_unifying_init(hidpp);
else if (hid_is_usb(hidpp->hid_dev))
hidpp_serial_init(hidpp);
connected = hidpp_root_get_protocol_version(hidpp) == 0;
atomic_set(&hidpp->connected, connected);
if (!(hidpp->quirks & HIDPP_QUIRK_UNIFYING)) {
if (!connected) {
ret = -ENODEV;
hid_err(hdev, "Device not connected");
goto hid_hw_init_fail;
}
hidpp_overwrite_name(hdev);
}
if (connected && hidpp->protocol_major >= 2) {
ret = hidpp_set_wireless_feature_index(hidpp);
if (ret == -ENOENT)
hidpp->wireless_feature_index = 0;
else if (ret)
goto hid_hw_init_fail;
ret = 0;
}
if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
ret = wtp_get_config(hidpp);
if (ret)
goto hid_hw_init_fail;
} else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
ret = g920_get_config(hidpp, &data);
if (ret)
goto hid_hw_init_fail;
}
hidpp_connect_event(hidpp);
if (will_restart) {
/* Reset the HID node state */
hid_device_io_stop(hdev);
hid_hw_close(hdev);
hid_hw_stop(hdev);
if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT)
connect_mask &= ~HID_CONNECT_HIDINPUT;
/* Now export the actual inputs and hidraw nodes to the world */
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
goto hid_hw_start_fail;
}
}
if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
ret = hidpp_ff_init(hidpp, &data);
if (ret)
hid_warn(hidpp->hid_dev,
"Unable to initialize force feedback support, errno %d\n",
ret);
}
return ret;
hid_hw_init_fail:
hid_hw_close(hdev);
hid_hw_open_fail:
hid_hw_stop(hdev);
hid_hw_start_fail:
sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
cancel_work_sync(&hidpp->work);
mutex_destroy(&hidpp->send_mutex);
return ret;
}
static void hidpp_remove(struct hid_device *hdev)
{
struct hidpp_device *hidpp = hid_get_drvdata(hdev);
if (!hidpp)
return hid_hw_stop(hdev);
sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group);
hid_hw_stop(hdev);
cancel_work_sync(&hidpp->work);
mutex_destroy(&hidpp->send_mutex);
}
#define LDJ_DEVICE(product) \
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE, \
USB_VENDOR_ID_LOGITECH, (product))
#define L27MHZ_DEVICE(product) \
HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_27MHZ_DEVICE, \
USB_VENDOR_ID_LOGITECH, (product))
static const struct hid_device_id hidpp_devices[] = {
{ /* wireless touchpad */
LDJ_DEVICE(0x4011),
.driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT |
HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS },
{ /* wireless touchpad T650 */
LDJ_DEVICE(0x4101),
.driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
{ /* wireless touchpad T651 */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_T651),
.driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT },
{ /* Mouse Logitech Anywhere MX */
LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
{ /* Mouse logitech M560 */
LDJ_DEVICE(0x402d),
.driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
{ /* Mouse Logitech M705 (firmware RQM17) */
LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
{ /* Mouse Logitech Performance MX */
LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
{ /* Keyboard logitech K400 */
LDJ_DEVICE(0x4024),
.driver_data = HIDPP_QUIRK_CLASS_K400 },
{ /* Solar Keyboard Logitech K750 */
LDJ_DEVICE(0x4002),
.driver_data = HIDPP_QUIRK_CLASS_K750 },
{ /* Keyboard MX5000 (Bluetooth-receiver in HID proxy mode) */
LDJ_DEVICE(0xb305),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* Dinovo Edge (Bluetooth-receiver in HID proxy mode) */
LDJ_DEVICE(0xb309),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* Keyboard MX5500 (Bluetooth-receiver in HID proxy mode) */
LDJ_DEVICE(0xb30b),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ LDJ_DEVICE(HID_ANY_ID) },
{ /* Keyboard LX501 (Y-RR53) */
L27MHZ_DEVICE(0x0049),
.driver_data = HIDPP_QUIRK_KBD_ZOOM_WHEEL },
{ /* Keyboard MX3000 (Y-RAM74) */
L27MHZ_DEVICE(0x0057),
.driver_data = HIDPP_QUIRK_KBD_SCROLL_WHEEL },
{ /* Keyboard MX3200 (Y-RAV80) */
L27MHZ_DEVICE(0x005c),
.driver_data = HIDPP_QUIRK_KBD_ZOOM_WHEEL },
{ /* S510 Media Remote */
L27MHZ_DEVICE(0x00fe),
.driver_data = HIDPP_QUIRK_KBD_SCROLL_WHEEL },
{ L27MHZ_DEVICE(HID_ANY_ID) },
{ /* Logitech G403 Wireless Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC082) },
{ /* Logitech G502 Lightspeed Wireless Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC08D) },
{ /* Logitech G703 Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC087) },
{ /* Logitech G703 Hero Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC090) },
{ /* Logitech G900 Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC081) },
{ /* Logitech G903 Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC086) },
{ /* Logitech G903 Hero Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC091) },
{ /* Logitech G915 TKL Keyboard over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC343) },
{ /* Logitech G920 Wheel over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
{ /* Logitech G923 Wheel (Xbox version) over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G923_XBOX_WHEEL),
.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS },
{ /* Logitech G Pro Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC088) },
{ /* Logitech G Pro X Superlight Gaming Mouse over USB */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC094) },
{ /* G935 Gaming Headset */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0x0a87),
.driver_data = HIDPP_QUIRK_WIRELESS_STATUS },
{ /* MX5000 keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb305),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* Dinovo Edge keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb309),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* MX5500 keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb30b),
.driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
{ /* Logitech G915 TKL keyboard over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb35f) },
{ /* M-RCQ142 V470 Cordless Laser Mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb008) },
{ /* MX Master mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb012) },
{ /* MX Ergo trackball over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01d) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01e) },
{ /* Signature M650 over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb02a) },
{ /* MX Master 3 mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb023) },
{ /* MX Anywhere 3 mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb025) },
{ /* MX Master 3S mouse over Bluetooth */
HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb034) },
{}
};
MODULE_DEVICE_TABLE(hid, hidpp_devices);
static const struct hid_usage_id hidpp_usages[] = {
{ HID_GD_WHEEL, EV_REL, REL_WHEEL_HI_RES },
{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
};
static struct hid_driver hidpp_driver = {
.name = "logitech-hidpp-device",
.id_table = hidpp_devices,
.report_fixup = hidpp_report_fixup,
.probe = hidpp_probe,
.remove = hidpp_remove,
.raw_event = hidpp_raw_event,
.usage_table = hidpp_usages,
.event = hidpp_event,
.input_configured = hidpp_input_configured,
.input_mapping = hidpp_input_mapping,
.input_mapped = hidpp_input_mapped,
};
module_hid_driver(hidpp_driver);
| linux-master | drivers/hid/hid-logitech-hidpp.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for UC-Logic devices not fully compliant with HID standard
*
* Copyright (c) 2022 José Expósito <[email protected]>
*/
#include <kunit/test.h>
#include "./hid-uclogic-params.h"
#define MAX_EVENT_SIZE 12
struct uclogic_raw_event_hook_test {
u8 event[MAX_EVENT_SIZE];
size_t size;
bool expected;
};
static struct uclogic_raw_event_hook_test hook_events[] = {
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
.size = 4,
},
{
.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
.size = 6,
},
};
static struct uclogic_raw_event_hook_test test_events[] = {
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
.size = 4,
.expected = true,
},
{
.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
.size = 6,
.expected = true,
},
{
.event = { 0xA1, 0xB2, 0xC3 },
.size = 3,
.expected = false,
},
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4, 0x00 },
.size = 5,
.expected = false,
},
{
.event = { 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x1F },
.size = 6,
.expected = false,
},
};
static void hid_test_uclogic_exec_event_hook_test(struct kunit *test)
{
struct uclogic_params p = {0, };
struct uclogic_raw_event_hook *filter;
bool res;
int n;
/* Initialize the list of events to hook */
p.event_hooks = kunit_kzalloc(test, sizeof(*p.event_hooks), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p.event_hooks);
INIT_LIST_HEAD(&p.event_hooks->list);
for (n = 0; n < ARRAY_SIZE(hook_events); n++) {
filter = kunit_kzalloc(test, sizeof(*filter), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter);
filter->size = hook_events[n].size;
filter->event = kunit_kzalloc(test, filter->size, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter->event);
memcpy(filter->event, &hook_events[n].event[0], filter->size);
list_add_tail(&filter->list, &p.event_hooks->list);
}
/* Test uclogic_exec_event_hook() */
for (n = 0; n < ARRAY_SIZE(test_events); n++) {
res = uclogic_exec_event_hook(&p, &test_events[n].event[0],
test_events[n].size);
KUNIT_ASSERT_EQ(test, res, test_events[n].expected);
}
}
static struct kunit_case hid_uclogic_core_test_cases[] = {
KUNIT_CASE(hid_test_uclogic_exec_event_hook_test),
{}
};
static struct kunit_suite hid_uclogic_core_test_suite = {
.name = "hid_uclogic_core_test",
.test_cases = hid_uclogic_core_test_cases,
};
kunit_test_suite(hid_uclogic_core_test_suite);
MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("José Expósito <[email protected]>");
| linux-master | drivers/hid/hid-uclogic-core-test.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for SmartJoy PLUS PS2->USB adapter
*
* Copyright (c) 2009 Jussi Kivilinna <[email protected]>
*
* Based of hid-pl.c and hid-gaff.c
* Copyright (c) 2007, 2009 Anssi Hannula <[email protected]>
* Copyright (c) 2008 Lukasz Lubojanski <[email protected]>
*/
/*
*/
/* #define DEBUG */
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_SMARTJOYPLUS_FF
struct sjoyff_device {
struct hid_report *report;
};
static int hid_sjoyff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct sjoyff_device *sjoyff = data;
u32 left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
left = left * 0xff / 0xffff;
right = (right != 0); /* on/off only */
sjoyff->report->field[0]->value[1] = right;
sjoyff->report->field[0]->value[2] = left;
dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
return 0;
}
static int sjoyff_init(struct hid_device *hid)
{
struct sjoyff_device *sjoyff;
struct hid_report *report;
struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct list_head *report_ptr = report_list;
struct input_dev *dev;
int error;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
list_for_each_entry(hidinput, &hid->inputs, list) {
report_ptr = report_ptr->next;
if (report_ptr == report_list) {
hid_err(hid, "required output report is missing\n");
return -ENODEV;
}
report = list_entry(report_ptr, struct hid_report, list);
if (report->maxfield < 1) {
hid_err(hid, "no fields in the report\n");
return -ENODEV;
}
if (report->field[0]->report_count < 3) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
if (!sjoyff)
return -ENOMEM;
dev = hidinput->input;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
if (error) {
kfree(sjoyff);
return error;
}
sjoyff->report = report;
sjoyff->report->field[0]->value[0] = 0x01;
sjoyff->report->field[0]->value[1] = 0x00;
sjoyff->report->field[0]->value[2] = 0x00;
hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
}
hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
return 0;
}
#else
static inline int sjoyff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hdev->quirks |= id->driver_data;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
sjoyff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id sjoy_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO),
.driver_data = HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO),
.driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO),
.driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD),
.driver_data = HID_QUIRK_MULTI_INPUT |
HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII),
.driver_data = HID_QUIRK_MULTI_INPUT |
HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ }
};
MODULE_DEVICE_TABLE(hid, sjoy_devices);
static struct hid_driver sjoy_driver = {
.name = "smartjoyplus",
.id_table = sjoy_devices,
.probe = sjoy_probe,
};
module_hid_driver(sjoy_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jussi Kivilinna");
| linux-master | drivers/hid/hid-sjoy.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for ViewSonic devices not fully compliant with HID standard
*
* Copyright (c) 2017 Nikolai Kondrashov
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* Size of the original descriptor of PD1011 signature pad */
#define PD1011_RDESC_ORIG_SIZE 408
/* Fixed report descriptor of PD1011 signature pad */
static __u8 pd1011_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x02, /* Report ID (2), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x5D, 0x21, /* Physical Maximum (8541), */
0x27, 0x80, 0xA9,
0x00, 0x00, /* Logical Maximum (43392), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xDA, 0x14, /* Physical Maximum (5338), */
0x26, 0xF0, 0x69, /* Logical Maximum (27120), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x09, 0x42, /* Usage (Tip Switch), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x09, 0x30, /* Usage (Tip Pressure), */
0x15, 0x05, /* Logical Minimum (5), */
0x26, 0xFF, 0x07, /* Logical Maximum (2047), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 *viewsonic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_VIEWSONIC_PD1011:
case USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011:
if (*rsize == PD1011_RDESC_ORIG_SIZE) {
rdesc = pd1011_rdesc_fixed;
*rsize = sizeof(pd1011_rdesc_fixed);
}
break;
}
return rdesc;
}
static const struct hid_device_id viewsonic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_VIEWSONIC,
USB_DEVICE_ID_VIEWSONIC_PD1011) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIGNOTEC,
USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011) },
{ }
};
MODULE_DEVICE_TABLE(hid, viewsonic_devices);
static struct hid_driver viewsonic_driver = {
.name = "viewsonic",
.id_table = viewsonic_devices,
.report_fixup = viewsonic_report_fixup,
};
module_hid_driver(viewsonic_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-viewsonic.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Sony / PS2 / PS3 / PS4 BD devices.
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2008 Jiri Slaby
* Copyright (c) 2012 David Dillow <[email protected]>
* Copyright (c) 2006-2013 Jiri Kosina
* Copyright (c) 2013 Colin Leitner <[email protected]>
* Copyright (c) 2014-2016 Frank Praznik <[email protected]>
* Copyright (c) 2018 Todd Kelner
* Copyright (c) 2020-2021 Pascal Giard <[email protected]>
* Copyright (c) 2020 Sanjay Govind <[email protected]>
* Copyright (c) 2021 Daniel Nguyen <[email protected]>
*/
/*
*/
/*
* NOTE: in order for the Sony PS3 BD Remote Control to be found by
* a Bluetooth host, the key combination Start+Enter has to be kept pressed
* for about 7 seconds with the Bluetooth Host Controller in discovering mode.
*
* There will be no PIN request from the device.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/idr.h>
#include <linux/input/mt.h>
#include <linux/crc32.h>
#include <linux/usb.h>
#include <linux/timer.h>
#include <asm/unaligned.h>
#include "hid-ids.h"
#define VAIO_RDESC_CONSTANT BIT(0)
#define SIXAXIS_CONTROLLER_USB BIT(1)
#define SIXAXIS_CONTROLLER_BT BIT(2)
#define BUZZ_CONTROLLER BIT(3)
#define PS3REMOTE BIT(4)
#define MOTION_CONTROLLER_USB BIT(5)
#define MOTION_CONTROLLER_BT BIT(6)
#define NAVIGATION_CONTROLLER_USB BIT(7)
#define NAVIGATION_CONTROLLER_BT BIT(8)
#define SINO_LITE_CONTROLLER BIT(9)
#define FUTUREMAX_DANCE_MAT BIT(10)
#define NSG_MR5U_REMOTE_BT BIT(11)
#define NSG_MR7U_REMOTE_BT BIT(12)
#define SHANWAN_GAMEPAD BIT(13)
#define GH_GUITAR_CONTROLLER BIT(14)
#define GHL_GUITAR_PS3WIIU BIT(15)
#define GHL_GUITAR_PS4 BIT(16)
#define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
#define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
#define NAVIGATION_CONTROLLER (NAVIGATION_CONTROLLER_USB |\
NAVIGATION_CONTROLLER_BT)
#define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
MOTION_CONTROLLER | NAVIGATION_CONTROLLER)
#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | MOTION_CONTROLLER)
#define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
#define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)
#define MAX_LEDS 4
#define NSG_MRXU_MAX_X 1667
#define NSG_MRXU_MAX_Y 1868
/* The PS3/Wii U dongles require a poke every 10 seconds, but the PS4
* requires one every 8 seconds. Using 8 seconds for all for simplicity.
*/
#define GHL_GUITAR_POKE_INTERVAL 8 /* In seconds */
#define GUITAR_TILT_USAGE 44
/* Magic data taken from GHLtarUtility:
* https://github.com/ghlre/GHLtarUtility/blob/master/PS3Guitar.cs
* Note: The Wii U and PS3 dongles happen to share the same!
*/
static const char ghl_ps3wiiu_magic_data[] = {
0x02, 0x08, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00
};
/* Magic data for the PS4 dongles sniffed with a USB protocol
* analyzer.
*/
static const char ghl_ps4_magic_data[] = {
0x30, 0x02, 0x08, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00
};
/* PS/3 Motion controller */
static u8 motion_rdesc[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x85, 0x01, /* Report ID (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x15, /* Report Count (21), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x35, 0x00, /* Physical Minimum (0), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x15, /* Usage Maximum (15h), */
0x81, 0x02, /* Input (Variable), * Buttons */
0x95, 0x0B, /* Report Count (11), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x81, 0x03, /* Input (Constant, Variable), * Padding */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x05, 0x01, /* Usage Page (Desktop), */
0xA1, 0x00, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), * Trigger */
0xC0, /* End Collection, */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x07, /* Report Count (7), * skip 7 bytes */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x10, /* Report Size (16), */
0x46, 0xFF, 0xFF, /* Physical Maximum (65535), */
0x27, 0xFF, 0xFF, 0x00, 0x00, /* Logical Maximum (65535), */
0x95, 0x03, /* Report Count (3), * 3x Accels */
0x09, 0x33, /* Usage (rX), */
0x09, 0x34, /* Usage (rY), */
0x09, 0x35, /* Usage (rZ), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x95, 0x03, /* Report Count (3), * Skip Accels 2nd frame */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x01, /* Usage (Pointer), */
0x95, 0x03, /* Report Count (3), * 3x Gyros */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x95, 0x03, /* Report Count (3), * Skip Gyros 2nd frame */
0x81, 0x02, /* Input (Variable), */
0x75, 0x0C, /* Report Size (12), */
0x46, 0xFF, 0x0F, /* Physical Maximum (4095), */
0x26, 0xFF, 0x0F, /* Logical Maximum (4095), */
0x95, 0x04, /* Report Count (4), * Skip Temp and Magnetometers */
0x81, 0x02, /* Input (Variable), */
0x75, 0x08, /* Report Size (8), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x06, /* Report Count (6), * Skip Timestamp and Extension Bytes */
0x81, 0x02, /* Input (Variable), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x30, /* Report Count (48), */
0x09, 0x01, /* Usage (Pointer), */
0x91, 0x02, /* Output (Variable), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x30, /* Report Count (48), */
0x09, 0x01, /* Usage (Pointer), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x85, 0x02, /* Report ID (2), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x30, /* Report Count (48), */
0x09, 0x01, /* Usage (Pointer), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x85, 0xEE, /* Report ID (238), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x30, /* Report Count (48), */
0x09, 0x01, /* Usage (Pointer), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x85, 0xEF, /* Report ID (239), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x30, /* Report Count (48), */
0x09, 0x01, /* Usage (Pointer), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static u8 ps3remote_rdesc[] = {
0x05, 0x01, /* GUsagePage Generic Desktop */
0x09, 0x05, /* LUsage 0x05 [Game Pad] */
0xA1, 0x01, /* MCollection Application (mouse, keyboard) */
/* Use collection 1 for joypad buttons */
0xA1, 0x02, /* MCollection Logical (interrelated data) */
/*
* Ignore the 1st byte, maybe it is used for a controller
* number but it's not needed for correct operation
*/
0x75, 0x08, /* GReportSize 0x08 [8] */
0x95, 0x01, /* GReportCount 0x01 [1] */
0x81, 0x01, /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
/*
* Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
* buttons multiple keypresses are allowed
*/
0x05, 0x09, /* GUsagePage Button */
0x19, 0x01, /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
0x29, 0x18, /* LUsageMaximum 0x18 [Button 24] */
0x14, /* GLogicalMinimum [0] */
0x25, 0x01, /* GLogicalMaximum 0x01 [1] */
0x75, 0x01, /* GReportSize 0x01 [1] */
0x95, 0x18, /* GReportCount 0x18 [24] */
0x81, 0x02, /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
0xC0, /* MEndCollection */
/* Use collection 2 for remote control buttons */
0xA1, 0x02, /* MCollection Logical (interrelated data) */
/* 5th byte is used for remote control buttons */
0x05, 0x09, /* GUsagePage Button */
0x18, /* LUsageMinimum [No button pressed] */
0x29, 0xFE, /* LUsageMaximum 0xFE [Button 254] */
0x14, /* GLogicalMinimum [0] */
0x26, 0xFE, 0x00, /* GLogicalMaximum 0x00FE [254] */
0x75, 0x08, /* GReportSize 0x08 [8] */
0x95, 0x01, /* GReportCount 0x01 [1] */
0x80, /* MInput */
/*
* Ignore bytes from 6th to 11th, 6th to 10th are always constant at
* 0xff and 11th is for press indication
*/
0x75, 0x08, /* GReportSize 0x08 [8] */
0x95, 0x06, /* GReportCount 0x06 [6] */
0x81, 0x01, /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
/* 12th byte is for battery strength */
0x05, 0x06, /* GUsagePage Generic Device Controls */
0x09, 0x20, /* LUsage 0x20 [Battery Strength] */
0x14, /* GLogicalMinimum [0] */
0x25, 0x05, /* GLogicalMaximum 0x05 [5] */
0x75, 0x08, /* GReportSize 0x08 [8] */
0x95, 0x01, /* GReportCount 0x01 [1] */
0x81, 0x02, /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
0xC0, /* MEndCollection */
0xC0 /* MEndCollection [Game Pad] */
};
static const unsigned int ps3remote_keymap_joypad_buttons[] = {
[0x01] = KEY_SELECT,
[0x02] = BTN_THUMBL, /* L3 */
[0x03] = BTN_THUMBR, /* R3 */
[0x04] = BTN_START,
[0x05] = KEY_UP,
[0x06] = KEY_RIGHT,
[0x07] = KEY_DOWN,
[0x08] = KEY_LEFT,
[0x09] = BTN_TL2, /* L2 */
[0x0a] = BTN_TR2, /* R2 */
[0x0b] = BTN_TL, /* L1 */
[0x0c] = BTN_TR, /* R1 */
[0x0d] = KEY_OPTION, /* options/triangle */
[0x0e] = KEY_BACK, /* back/circle */
[0x0f] = BTN_0, /* cross */
[0x10] = KEY_SCREEN, /* view/square */
[0x11] = KEY_HOMEPAGE, /* PS button */
[0x14] = KEY_ENTER,
};
static const unsigned int ps3remote_keymap_remote_buttons[] = {
[0x00] = KEY_1,
[0x01] = KEY_2,
[0x02] = KEY_3,
[0x03] = KEY_4,
[0x04] = KEY_5,
[0x05] = KEY_6,
[0x06] = KEY_7,
[0x07] = KEY_8,
[0x08] = KEY_9,
[0x09] = KEY_0,
[0x0e] = KEY_ESC, /* return */
[0x0f] = KEY_CLEAR,
[0x16] = KEY_EJECTCD,
[0x1a] = KEY_MENU, /* top menu */
[0x28] = KEY_TIME,
[0x30] = KEY_PREVIOUS,
[0x31] = KEY_NEXT,
[0x32] = KEY_PLAY,
[0x33] = KEY_REWIND, /* scan back */
[0x34] = KEY_FORWARD, /* scan forward */
[0x38] = KEY_STOP,
[0x39] = KEY_PAUSE,
[0x40] = KEY_CONTEXT_MENU, /* pop up/menu */
[0x60] = KEY_FRAMEBACK, /* slow/step back */
[0x61] = KEY_FRAMEFORWARD, /* slow/step forward */
[0x63] = KEY_SUBTITLE,
[0x64] = KEY_AUDIO,
[0x65] = KEY_ANGLE,
[0x70] = KEY_INFO, /* display */
[0x80] = KEY_BLUE,
[0x81] = KEY_RED,
[0x82] = KEY_GREEN,
[0x83] = KEY_YELLOW,
};
static const unsigned int buzz_keymap[] = {
/*
* The controller has 4 remote buzzers, each with one LED and 5
* buttons.
*
* We use the mapping chosen by the controller, which is:
*
* Key Offset
* -------------------
* Buzz 1
* Blue 5
* Orange 4
* Green 3
* Yellow 2
*
* So, for example, the orange button on the third buzzer is mapped to
* BTN_TRIGGER_HAPPY14
*/
[1] = BTN_TRIGGER_HAPPY1,
[2] = BTN_TRIGGER_HAPPY2,
[3] = BTN_TRIGGER_HAPPY3,
[4] = BTN_TRIGGER_HAPPY4,
[5] = BTN_TRIGGER_HAPPY5,
[6] = BTN_TRIGGER_HAPPY6,
[7] = BTN_TRIGGER_HAPPY7,
[8] = BTN_TRIGGER_HAPPY8,
[9] = BTN_TRIGGER_HAPPY9,
[10] = BTN_TRIGGER_HAPPY10,
[11] = BTN_TRIGGER_HAPPY11,
[12] = BTN_TRIGGER_HAPPY12,
[13] = BTN_TRIGGER_HAPPY13,
[14] = BTN_TRIGGER_HAPPY14,
[15] = BTN_TRIGGER_HAPPY15,
[16] = BTN_TRIGGER_HAPPY16,
[17] = BTN_TRIGGER_HAPPY17,
[18] = BTN_TRIGGER_HAPPY18,
[19] = BTN_TRIGGER_HAPPY19,
[20] = BTN_TRIGGER_HAPPY20,
};
/* The Navigation controller is a partial DS3 and uses the same HID report
* and hence the same keymap indices, however not all axes/buttons
* are physically present. We use the same axis and button mapping as
* the DS3, which uses the Linux gamepad spec.
*/
static const unsigned int navigation_absmap[] = {
[0x30] = ABS_X,
[0x31] = ABS_Y,
[0x33] = ABS_Z, /* L2 */
};
/* Buttons not physically available on the device, but still available
* in the reports are explicitly set to 0 for documentation purposes.
*/
static const unsigned int navigation_keymap[] = {
[0x01] = 0, /* Select */
[0x02] = BTN_THUMBL, /* L3 */
[0x03] = 0, /* R3 */
[0x04] = 0, /* Start */
[0x05] = BTN_DPAD_UP, /* Up */
[0x06] = BTN_DPAD_RIGHT, /* Right */
[0x07] = BTN_DPAD_DOWN, /* Down */
[0x08] = BTN_DPAD_LEFT, /* Left */
[0x09] = BTN_TL2, /* L2 */
[0x0a] = 0, /* R2 */
[0x0b] = BTN_TL, /* L1 */
[0x0c] = 0, /* R1 */
[0x0d] = BTN_NORTH, /* Triangle */
[0x0e] = BTN_EAST, /* Circle */
[0x0f] = BTN_SOUTH, /* Cross */
[0x10] = BTN_WEST, /* Square */
[0x11] = BTN_MODE, /* PS */
};
static const unsigned int sixaxis_absmap[] = {
[0x30] = ABS_X,
[0x31] = ABS_Y,
[0x32] = ABS_RX, /* right stick X */
[0x35] = ABS_RY, /* right stick Y */
};
static const unsigned int sixaxis_keymap[] = {
[0x01] = BTN_SELECT, /* Select */
[0x02] = BTN_THUMBL, /* L3 */
[0x03] = BTN_THUMBR, /* R3 */
[0x04] = BTN_START, /* Start */
[0x05] = BTN_DPAD_UP, /* Up */
[0x06] = BTN_DPAD_RIGHT, /* Right */
[0x07] = BTN_DPAD_DOWN, /* Down */
[0x08] = BTN_DPAD_LEFT, /* Left */
[0x09] = BTN_TL2, /* L2 */
[0x0a] = BTN_TR2, /* R2 */
[0x0b] = BTN_TL, /* L1 */
[0x0c] = BTN_TR, /* R1 */
[0x0d] = BTN_NORTH, /* Triangle */
[0x0e] = BTN_EAST, /* Circle */
[0x0f] = BTN_SOUTH, /* Cross */
[0x10] = BTN_WEST, /* Square */
[0x11] = BTN_MODE, /* PS */
};
static enum power_supply_property sony_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_STATUS,
};
struct sixaxis_led {
u8 time_enabled; /* the total time the led is active (0xff means forever) */
u8 duty_length; /* how long a cycle is in deciseconds (0 means "really fast") */
u8 enabled;
u8 duty_off; /* % of duty_length the led is off (0xff means 100%) */
u8 duty_on; /* % of duty_length the led is on (0xff mean 100%) */
} __packed;
struct sixaxis_rumble {
u8 padding;
u8 right_duration; /* Right motor duration (0xff means forever) */
u8 right_motor_on; /* Right (small) motor on/off, only supports values of 0 or 1 (off/on) */
u8 left_duration; /* Left motor duration (0xff means forever) */
u8 left_motor_force; /* left (large) motor, supports force values from 0 to 255 */
} __packed;
struct sixaxis_output_report {
u8 report_id;
struct sixaxis_rumble rumble;
u8 padding[4];
u8 leds_bitmap; /* bitmap of enabled LEDs: LED_1 = 0x02, LED_2 = 0x04, ... */
struct sixaxis_led led[4]; /* LEDx at (4 - x) */
struct sixaxis_led _reserved; /* LED5, not actually soldered */
} __packed;
union sixaxis_output_report_01 {
struct sixaxis_output_report data;
u8 buf[36];
};
struct motion_output_report_02 {
u8 type, zero;
u8 r, g, b;
u8 zero2;
u8 rumble;
};
#define SIXAXIS_REPORT_0xF2_SIZE 17
#define SIXAXIS_REPORT_0xF5_SIZE 8
#define MOTION_REPORT_0x02_SIZE 49
#define SENSOR_SUFFIX " Motion Sensors"
#define TOUCHPAD_SUFFIX " Touchpad"
#define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41
#define SIXAXIS_ACC_RES_PER_G 113
static DEFINE_SPINLOCK(sony_dev_list_lock);
static LIST_HEAD(sony_device_list);
static DEFINE_IDA(sony_device_id_allocator);
enum sony_worker {
SONY_WORKER_STATE
};
struct sony_sc {
spinlock_t lock;
struct list_head list_node;
struct hid_device *hdev;
struct input_dev *touchpad;
struct input_dev *sensor_dev;
struct led_classdev *leds[MAX_LEDS];
unsigned long quirks;
struct work_struct state_worker;
void (*send_output_report)(struct sony_sc *);
struct power_supply *battery;
struct power_supply_desc battery_desc;
int device_id;
u8 *output_report_dmabuf;
#ifdef CONFIG_SONY_FF
u8 left;
u8 right;
#endif
u8 mac_address[6];
u8 state_worker_initialized;
u8 defer_initialization;
u8 battery_capacity;
int battery_status;
u8 led_state[MAX_LEDS];
u8 led_delay_on[MAX_LEDS];
u8 led_delay_off[MAX_LEDS];
u8 led_count;
/* GH Live */
struct urb *ghl_urb;
struct timer_list ghl_poke_timer;
};
static void sony_set_leds(struct sony_sc *sc);
static inline void sony_schedule_work(struct sony_sc *sc,
enum sony_worker which)
{
unsigned long flags;
switch (which) {
case SONY_WORKER_STATE:
spin_lock_irqsave(&sc->lock, flags);
if (!sc->defer_initialization && sc->state_worker_initialized)
schedule_work(&sc->state_worker);
spin_unlock_irqrestore(&sc->lock, flags);
break;
}
}
static void ghl_magic_poke_cb(struct urb *urb)
{
struct sony_sc *sc = urb->context;
if (urb->status < 0)
hid_err(sc->hdev, "URB transfer failed : %d", urb->status);
mod_timer(&sc->ghl_poke_timer, jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
}
static void ghl_magic_poke(struct timer_list *t)
{
int ret;
struct sony_sc *sc = from_timer(sc, t, ghl_poke_timer);
ret = usb_submit_urb(sc->ghl_urb, GFP_ATOMIC);
if (ret < 0)
hid_err(sc->hdev, "usb_submit_urb failed: %d", ret);
}
static int ghl_init_urb(struct sony_sc *sc, struct usb_device *usbdev,
const char ghl_magic_data[], u16 poke_size)
{
struct usb_ctrlrequest *cr;
u8 *databuf;
unsigned int pipe;
u16 ghl_magic_value = (((HID_OUTPUT_REPORT + 1) << 8) | ghl_magic_data[0]);
pipe = usb_sndctrlpipe(usbdev, 0);
cr = devm_kzalloc(&sc->hdev->dev, sizeof(*cr), GFP_ATOMIC);
if (cr == NULL)
return -ENOMEM;
databuf = devm_kzalloc(&sc->hdev->dev, poke_size, GFP_ATOMIC);
if (databuf == NULL)
return -ENOMEM;
cr->bRequestType =
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT;
cr->bRequest = USB_REQ_SET_CONFIGURATION;
cr->wValue = cpu_to_le16(ghl_magic_value);
cr->wIndex = 0;
cr->wLength = cpu_to_le16(poke_size);
memcpy(databuf, ghl_magic_data, poke_size);
usb_fill_control_urb(
sc->ghl_urb, usbdev, pipe,
(unsigned char *) cr, databuf, poke_size,
ghl_magic_poke_cb, sc);
return 0;
}
static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
unsigned int abs = usage->hid & HID_USAGE;
if (abs == GUITAR_TILT_USAGE) {
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, ABS_RY);
return 1;
}
}
return 0;
}
static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
unsigned int *rsize)
{
*rsize = sizeof(motion_rdesc);
return motion_rdesc;
}
static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
unsigned int *rsize)
{
*rsize = sizeof(ps3remote_rdesc);
return ps3remote_rdesc;
}
static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
unsigned int key = usage->hid & HID_USAGE;
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
return -1;
switch (usage->collection_index) {
case 1:
if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
return -1;
key = ps3remote_keymap_joypad_buttons[key];
if (!key)
return -1;
break;
case 2:
if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
return -1;
key = ps3remote_keymap_remote_buttons[key];
if (!key)
return -1;
break;
default:
return -1;
}
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
return 1;
}
static int navigation_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
unsigned int key = usage->hid & HID_USAGE;
if (key >= ARRAY_SIZE(sixaxis_keymap))
return -1;
key = navigation_keymap[key];
if (!key)
return -1;
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
return 1;
} else if (usage->hid == HID_GD_POINTER) {
/* See comment in sixaxis_mapping, basically the L2 (and R2)
* triggers are reported through GD Pointer.
* In addition we ignore any analog button 'axes' and only
* support digital buttons.
*/
switch (usage->usage_index) {
case 8: /* L2 */
usage->hid = HID_GD_Z;
break;
default:
return -1;
}
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
return 1;
} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
unsigned int abs = usage->hid & HID_USAGE;
if (abs >= ARRAY_SIZE(navigation_absmap))
return -1;
abs = navigation_absmap[abs];
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
return 1;
}
return -1;
}
static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
unsigned int key = usage->hid & HID_USAGE;
if (key >= ARRAY_SIZE(sixaxis_keymap))
return -1;
key = sixaxis_keymap[key];
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
return 1;
} else if (usage->hid == HID_GD_POINTER) {
/* The DS3 provides analog values for most buttons and even
* for HAT axes through GD Pointer. L2 and R2 are reported
* among these as well instead of as GD Z / RZ. Remap L2
* and R2 and ignore other analog 'button axes' as there is
* no good way for reporting them.
*/
switch (usage->usage_index) {
case 8: /* L2 */
usage->hid = HID_GD_Z;
break;
case 9: /* R2 */
usage->hid = HID_GD_RZ;
break;
default:
return -1;
}
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
return 1;
} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
unsigned int abs = usage->hid & HID_USAGE;
if (abs >= ARRAY_SIZE(sixaxis_absmap))
return -1;
abs = sixaxis_absmap[abs];
hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
return 1;
}
return -1;
}
static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
unsigned int *rsize)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
if (sc->quirks & (SINO_LITE_CONTROLLER | FUTUREMAX_DANCE_MAT))
return rdesc;
/*
* Some Sony RF receivers wrongly declare the mouse pointer as a
* a constant non-data variable.
*/
if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
/* usage page: generic desktop controls */
/* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
/* usage: mouse */
rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
/* input (usage page for x,y axes): constant, variable, relative */
rdesc[54] == 0x81 && rdesc[55] == 0x07) {
hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
/* input: data, variable, relative */
rdesc[55] = 0x06;
}
if (sc->quirks & MOTION_CONTROLLER)
return motion_fixup(hdev, rdesc, rsize);
if (sc->quirks & PS3REMOTE)
return ps3remote_fixup(hdev, rdesc, rsize);
/*
* Some knock-off USB dongles incorrectly report their button count
* as 13 instead of 16 causing three non-functional buttons.
*/
if ((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize >= 45 &&
/* Report Count (13) */
rdesc[23] == 0x95 && rdesc[24] == 0x0D &&
/* Usage Maximum (13) */
rdesc[37] == 0x29 && rdesc[38] == 0x0D &&
/* Report Count (3) */
rdesc[43] == 0x95 && rdesc[44] == 0x03) {
hid_info(hdev, "Fixing up USB dongle report descriptor\n");
rdesc[24] = 0x10;
rdesc[38] = 0x10;
rdesc[44] = 0x00;
}
return rdesc;
}
static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
{
static const u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
unsigned long flags;
int offset;
u8 battery_capacity;
int battery_status;
/*
* The sixaxis is charging if the battery value is 0xee
* and it is fully charged if the value is 0xef.
* It does not report the actual level while charging so it
* is set to 100% while charging is in progress.
*/
offset = (sc->quirks & MOTION_CONTROLLER) ? 12 : 30;
if (rd[offset] >= 0xee) {
battery_capacity = 100;
battery_status = (rd[offset] & 0x01) ? POWER_SUPPLY_STATUS_FULL : POWER_SUPPLY_STATUS_CHARGING;
} else {
u8 index = rd[offset] <= 5 ? rd[offset] : 5;
battery_capacity = sixaxis_battery_capacity[index];
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
}
spin_lock_irqsave(&sc->lock, flags);
sc->battery_capacity = battery_capacity;
sc->battery_status = battery_status;
spin_unlock_irqrestore(&sc->lock, flags);
if (sc->quirks & SIXAXIS_CONTROLLER) {
int val;
offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;
val = ((rd[offset+1] << 8) | rd[offset]) - 511;
input_report_abs(sc->sensor_dev, ABS_X, val);
/* Y and Z are swapped and inversed */
val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);
input_report_abs(sc->sensor_dev, ABS_Y, val);
val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);
input_report_abs(sc->sensor_dev, ABS_Z, val);
input_sync(sc->sensor_dev);
}
}
static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
{
int n, offset, relx, rely;
u8 active;
/*
* The NSG-MRxU multi-touch trackpad data starts at offset 1 and
* the touch-related data starts at offset 2.
* For the first byte, bit 0 is set when touchpad button is pressed.
* Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
* This drag key is mapped to BTN_LEFT. It is operational only when a
* touch point is active.
* Bit 4 is set when only the first touch point is active.
* Bit 6 is set when only the second touch point is active.
* Bits 5 and 7 are set when both touch points are active.
* The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
* The following byte, offset 5, has the touch width and length.
* Bits 0-4=X (width), bits 5-7=Y (length).
* A signed relative X coordinate is at offset 6.
* The bytes at offset 7-9 are the second touch X/Y coordinates.
* Offset 10 has the second touch width and length.
* Offset 11 has the relative Y coordinate.
*/
offset = 1;
input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
active = (rd[offset] >> 4);
relx = (s8) rd[offset+5];
rely = ((s8) rd[offset+10]) * -1;
offset++;
for (n = 0; n < 2; n++) {
u16 x, y;
u8 contactx, contacty;
x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
input_mt_slot(sc->touchpad, n);
input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
if (active & 0x03) {
contactx = rd[offset+3] & 0x0F;
contacty = rd[offset+3] >> 4;
input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
max(contactx, contacty));
input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
min(contactx, contacty));
input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
(bool) (contactx > contacty));
input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
NSG_MRXU_MAX_Y - y);
/*
* The relative coordinates belong to the first touch
* point, when present, or to the second touch point
* when the first is not active.
*/
if ((n == 0) || ((n == 1) && (active & 0x01))) {
input_report_rel(sc->touchpad, REL_X, relx);
input_report_rel(sc->touchpad, REL_Y, rely);
}
}
offset += 5;
active >>= 2;
}
input_mt_sync_frame(sc->touchpad);
input_sync(sc->touchpad);
}
static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
/*
* Sixaxis HID report has acclerometers/gyro with MSByte first, this
* has to be BYTE_SWAPPED before passing up to joystick interface
*/
if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
/*
* When connected via Bluetooth the Sixaxis occasionally sends
* a report with the second byte 0xff and the rest zeroed.
*
* This report does not reflect the actual state of the
* controller must be ignored to avoid generating false input
* events.
*/
if (rd[1] == 0xff)
return -EINVAL;
swap(rd[41], rd[42]);
swap(rd[43], rd[44]);
swap(rd[45], rd[46]);
swap(rd[47], rd[48]);
sixaxis_parse_report(sc, rd, size);
} else if ((sc->quirks & MOTION_CONTROLLER_BT) && rd[0] == 0x01 && size == 49) {
sixaxis_parse_report(sc, rd, size);
} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
size == 49) {
sixaxis_parse_report(sc, rd, size);
} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
nsg_mrxu_parse_report(sc, rd, size);
return 1;
}
if (sc->defer_initialization) {
sc->defer_initialization = 0;
sony_schedule_work(sc, SONY_WORKER_STATE);
}
return 0;
}
static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
if (sc->quirks & BUZZ_CONTROLLER) {
unsigned int key = usage->hid & HID_USAGE;
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
return -1;
switch (usage->collection_index) {
case 1:
if (key >= ARRAY_SIZE(buzz_keymap))
return -1;
key = buzz_keymap[key];
if (!key)
return -1;
break;
default:
return -1;
}
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
return 1;
}
if (sc->quirks & PS3REMOTE)
return ps3remote_mapping(hdev, hi, field, usage, bit, max);
if (sc->quirks & NAVIGATION_CONTROLLER)
return navigation_mapping(hdev, hi, field, usage, bit, max);
if (sc->quirks & SIXAXIS_CONTROLLER)
return sixaxis_mapping(hdev, hi, field, usage, bit, max);
if (sc->quirks & GH_GUITAR_CONTROLLER)
return guitar_mapping(hdev, hi, field, usage, bit, max);
/* Let hid-core decide for the others */
return 0;
}
static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
int w, int h, int touch_major, int touch_minor, int orientation)
{
size_t name_sz;
char *name;
int ret;
sc->touchpad = devm_input_allocate_device(&sc->hdev->dev);
if (!sc->touchpad)
return -ENOMEM;
input_set_drvdata(sc->touchpad, sc);
sc->touchpad->dev.parent = &sc->hdev->dev;
sc->touchpad->phys = sc->hdev->phys;
sc->touchpad->uniq = sc->hdev->uniq;
sc->touchpad->id.bustype = sc->hdev->bus;
sc->touchpad->id.vendor = sc->hdev->vendor;
sc->touchpad->id.product = sc->hdev->product;
sc->touchpad->id.version = sc->hdev->version;
/* This suffix was originally apended when hid-sony also
* supported DS4 devices. The DS4 was implemented using multiple
* evdev nodes and hence had the need to separete them out using
* a suffix. Other devices which were added later like Sony TV remotes
* inhirited this suffix.
*/
name_sz = strlen(sc->hdev->name) + sizeof(TOUCHPAD_SUFFIX);
name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
if (!name)
return -ENOMEM;
snprintf(name, name_sz, "%s" TOUCHPAD_SUFFIX, sc->hdev->name);
sc->touchpad->name = name;
/* We map the button underneath the touchpad to BTN_LEFT. */
__set_bit(EV_KEY, sc->touchpad->evbit);
__set_bit(BTN_LEFT, sc->touchpad->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, sc->touchpad->propbit);
input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);
if (touch_major > 0) {
input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR,
0, touch_major, 0, 0);
if (touch_minor > 0)
input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR,
0, touch_minor, 0, 0);
if (orientation > 0)
input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION,
0, orientation, 0, 0);
}
if (sc->quirks & NSG_MRXU_REMOTE) {
__set_bit(EV_REL, sc->touchpad->evbit);
}
ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
if (ret < 0)
return ret;
ret = input_register_device(sc->touchpad);
if (ret < 0)
return ret;
return 0;
}
static int sony_register_sensors(struct sony_sc *sc)
{
size_t name_sz;
char *name;
int ret;
sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
if (!sc->sensor_dev)
return -ENOMEM;
input_set_drvdata(sc->sensor_dev, sc);
sc->sensor_dev->dev.parent = &sc->hdev->dev;
sc->sensor_dev->phys = sc->hdev->phys;
sc->sensor_dev->uniq = sc->hdev->uniq;
sc->sensor_dev->id.bustype = sc->hdev->bus;
sc->sensor_dev->id.vendor = sc->hdev->vendor;
sc->sensor_dev->id.product = sc->hdev->product;
sc->sensor_dev->id.version = sc->hdev->version;
/* Append a suffix to the controller name as there are various
* DS4 compatible non-Sony devices with different names.
*/
name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);
name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
if (!name)
return -ENOMEM;
snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);
sc->sensor_dev->name = name;
if (sc->quirks & SIXAXIS_CONTROLLER) {
/* For the DS3 we only support the accelerometer, which works
* quite well even without calibration. The device also has
* a 1-axis gyro, but it is very difficult to manage from within
* the driver even to get data, the sensor is inaccurate and
* the behavior is very different between hardware revisions.
*/
input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);
input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);
input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);
input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
}
__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);
ret = input_register_device(sc->sensor_dev);
if (ret < 0)
return ret;
return 0;
}
/*
* Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
* to "operational". Without this, the ps3 controller will not report any
* events.
*/
static int sixaxis_set_operational_usb(struct hid_device *hdev)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
const int buf_size =
max(SIXAXIS_REPORT_0xF2_SIZE, SIXAXIS_REPORT_0xF5_SIZE);
u8 *buf;
int ret;
buf = kmalloc(buf_size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, 0xf2, buf, SIXAXIS_REPORT_0xF2_SIZE,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "can't set operational mode: step 1\n");
goto out;
}
/*
* Some compatible controllers like the Speedlink Strike FX and
* Gasia need another query plus an USB interrupt to get operational.
*/
ret = hid_hw_raw_request(hdev, 0xf5, buf, SIXAXIS_REPORT_0xF5_SIZE,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "can't set operational mode: step 2\n");
goto out;
}
/*
* But the USB interrupt would cause SHANWAN controllers to
* start rumbling non-stop, so skip step 3 for these controllers.
*/
if (sc->quirks & SHANWAN_GAMEPAD)
goto out;
ret = hid_hw_output_report(hdev, buf, 1);
if (ret < 0) {
hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
ret = 0;
}
out:
kfree(buf);
return ret;
}
static int sixaxis_set_operational_bt(struct hid_device *hdev)
{
static const u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
u8 *buf;
int ret;
buf = kmemdup(report, sizeof(report), GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(buf);
return ret;
}
static void sixaxis_set_leds_from_id(struct sony_sc *sc)
{
static const u8 sixaxis_leds[10][4] = {
{ 0x01, 0x00, 0x00, 0x00 },
{ 0x00, 0x01, 0x00, 0x00 },
{ 0x00, 0x00, 0x01, 0x00 },
{ 0x00, 0x00, 0x00, 0x01 },
{ 0x01, 0x00, 0x00, 0x01 },
{ 0x00, 0x01, 0x00, 0x01 },
{ 0x00, 0x00, 0x01, 0x01 },
{ 0x01, 0x00, 0x01, 0x01 },
{ 0x00, 0x01, 0x01, 0x01 },
{ 0x01, 0x01, 0x01, 0x01 }
};
int id = sc->device_id;
BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));
if (id < 0)
return;
id %= 10;
memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
}
static void buzz_set_leds(struct sony_sc *sc)
{
struct hid_device *hdev = sc->hdev;
struct list_head *report_list =
&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next,
struct hid_report, list);
s32 *value = report->field[0]->value;
BUILD_BUG_ON(MAX_LEDS < 4);
value[0] = 0x00;
value[1] = sc->led_state[0] ? 0xff : 0x00;
value[2] = sc->led_state[1] ? 0xff : 0x00;
value[3] = sc->led_state[2] ? 0xff : 0x00;
value[4] = sc->led_state[3] ? 0xff : 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}
static void sony_set_leds(struct sony_sc *sc)
{
if (!(sc->quirks & BUZZ_CONTROLLER))
sony_schedule_work(sc, SONY_WORKER_STATE);
else
buzz_set_leds(sc);
}
static void sony_led_set_brightness(struct led_classdev *led,
enum led_brightness value)
{
struct device *dev = led->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct sony_sc *drv_data;
int n;
int force_update;
drv_data = hid_get_drvdata(hdev);
if (!drv_data) {
hid_err(hdev, "No device data\n");
return;
}
/*
* The Sixaxis on USB will override any LED settings sent to it
* and keep flashing all of the LEDs until the PS button is pressed.
* Updates, even if redundant, must be always be sent to the
* controller to avoid having to toggle the state of an LED just to
* stop the flashing later on.
*/
force_update = !!(drv_data->quirks & SIXAXIS_CONTROLLER_USB);
for (n = 0; n < drv_data->led_count; n++) {
if (led == drv_data->leds[n] && (force_update ||
(value != drv_data->led_state[n] ||
drv_data->led_delay_on[n] ||
drv_data->led_delay_off[n]))) {
drv_data->led_state[n] = value;
/* Setting the brightness stops the blinking */
drv_data->led_delay_on[n] = 0;
drv_data->led_delay_off[n] = 0;
sony_set_leds(drv_data);
break;
}
}
}
static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
{
struct device *dev = led->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct sony_sc *drv_data;
int n;
drv_data = hid_get_drvdata(hdev);
if (!drv_data) {
hid_err(hdev, "No device data\n");
return LED_OFF;
}
for (n = 0; n < drv_data->led_count; n++) {
if (led == drv_data->leds[n])
return drv_data->led_state[n];
}
return LED_OFF;
}
static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
unsigned long *delay_off)
{
struct device *dev = led->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct sony_sc *drv_data = hid_get_drvdata(hdev);
int n;
u8 new_on, new_off;
if (!drv_data) {
hid_err(hdev, "No device data\n");
return -EINVAL;
}
/* Max delay is 255 deciseconds or 2550 milliseconds */
if (*delay_on > 2550)
*delay_on = 2550;
if (*delay_off > 2550)
*delay_off = 2550;
/* Blink at 1 Hz if both values are zero */
if (!*delay_on && !*delay_off)
*delay_on = *delay_off = 500;
new_on = *delay_on / 10;
new_off = *delay_off / 10;
for (n = 0; n < drv_data->led_count; n++) {
if (led == drv_data->leds[n])
break;
}
/* This LED is not registered on this device */
if (n >= drv_data->led_count)
return -EINVAL;
/* Don't schedule work if the values didn't change */
if (new_on != drv_data->led_delay_on[n] ||
new_off != drv_data->led_delay_off[n]) {
drv_data->led_delay_on[n] = new_on;
drv_data->led_delay_off[n] = new_off;
sony_schedule_work(drv_data, SONY_WORKER_STATE);
}
return 0;
}
static int sony_leds_init(struct sony_sc *sc)
{
struct hid_device *hdev = sc->hdev;
int n, ret = 0;
int use_color_names;
struct led_classdev *led;
size_t name_sz;
char *name;
size_t name_len;
const char *name_fmt;
static const char * const color_name_str[] = { "red", "green", "blue",
"global" };
u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
u8 use_hw_blink[MAX_LEDS] = { 0 };
BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
if (sc->quirks & BUZZ_CONTROLLER) {
sc->led_count = 4;
use_color_names = 0;
name_len = strlen("::buzz#");
name_fmt = "%s::buzz%d";
/* Validate expected report characteristics. */
if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
return -ENODEV;
} else if (sc->quirks & MOTION_CONTROLLER) {
sc->led_count = 3;
memset(max_brightness, 255, 3);
use_color_names = 1;
name_len = 0;
name_fmt = "%s:%s";
} else if (sc->quirks & NAVIGATION_CONTROLLER) {
static const u8 navigation_leds[4] = {0x01, 0x00, 0x00, 0x00};
memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
sc->led_count = 1;
memset(use_hw_blink, 1, 4);
use_color_names = 0;
name_len = strlen("::sony#");
name_fmt = "%s::sony%d";
} else {
sixaxis_set_leds_from_id(sc);
sc->led_count = 4;
memset(use_hw_blink, 1, 4);
use_color_names = 0;
name_len = strlen("::sony#");
name_fmt = "%s::sony%d";
}
/*
* Clear LEDs as we have no way of reading their initial state. This is
* only relevant if the driver is loaded after somebody actively set the
* LEDs to on
*/
sony_set_leds(sc);
name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;
for (n = 0; n < sc->led_count; n++) {
if (use_color_names)
name_sz = strlen(dev_name(&hdev->dev)) + strlen(color_name_str[n]) + 2;
led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
if (!led) {
hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
return -ENOMEM;
}
name = (void *)(&led[1]);
if (use_color_names)
snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
color_name_str[n]);
else
snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
led->name = name;
led->brightness = sc->led_state[n];
led->max_brightness = max_brightness[n];
led->flags = LED_CORE_SUSPENDRESUME;
led->brightness_get = sony_led_get_brightness;
led->brightness_set = sony_led_set_brightness;
if (use_hw_blink[n])
led->blink_set = sony_led_blink_set;
sc->leds[n] = led;
ret = devm_led_classdev_register(&hdev->dev, led);
if (ret) {
hid_err(hdev, "Failed to register LED %d\n", n);
return ret;
}
}
return 0;
}
static void sixaxis_send_output_report(struct sony_sc *sc)
{
static const union sixaxis_output_report_01 default_report = {
.buf = {
0x01,
0x01, 0xff, 0x00, 0xff, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0xff, 0x27, 0x10, 0x00, 0x32,
0x00, 0x00, 0x00, 0x00, 0x00
}
};
struct sixaxis_output_report *report =
(struct sixaxis_output_report *)sc->output_report_dmabuf;
int n;
/* Initialize the report with default values */
memcpy(report, &default_report, sizeof(struct sixaxis_output_report));
#ifdef CONFIG_SONY_FF
report->rumble.right_motor_on = sc->right ? 1 : 0;
report->rumble.left_motor_force = sc->left;
#endif
report->leds_bitmap |= sc->led_state[0] << 1;
report->leds_bitmap |= sc->led_state[1] << 2;
report->leds_bitmap |= sc->led_state[2] << 3;
report->leds_bitmap |= sc->led_state[3] << 4;
/* Set flag for all leds off, required for 3rd party INTEC controller */
if ((report->leds_bitmap & 0x1E) == 0)
report->leds_bitmap |= 0x20;
/*
* The LEDs in the report are indexed in reverse order to their
* corresponding light on the controller.
* Index 0 = LED 4, index 1 = LED 3, etc...
*
* In the case of both delay values being zero (blinking disabled) the
* default report values should be used or the controller LED will be
* always off.
*/
for (n = 0; n < 4; n++) {
if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
report->led[3 - n].duty_off = sc->led_delay_off[n];
report->led[3 - n].duty_on = sc->led_delay_on[n];
}
}
/* SHANWAN controllers require output reports via intr channel */
if (sc->quirks & SHANWAN_GAMEPAD)
hid_hw_output_report(sc->hdev, (u8 *)report,
sizeof(struct sixaxis_output_report));
else
hid_hw_raw_request(sc->hdev, report->report_id, (u8 *)report,
sizeof(struct sixaxis_output_report),
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
}
static void motion_send_output_report(struct sony_sc *sc)
{
struct hid_device *hdev = sc->hdev;
struct motion_output_report_02 *report =
(struct motion_output_report_02 *)sc->output_report_dmabuf;
memset(report, 0, MOTION_REPORT_0x02_SIZE);
report->type = 0x02; /* set leds */
report->r = sc->led_state[0];
report->g = sc->led_state[1];
report->b = sc->led_state[2];
#ifdef CONFIG_SONY_FF
report->rumble = max(sc->right, sc->left);
#endif
hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
}
#ifdef CONFIG_SONY_FF
static inline void sony_send_output_report(struct sony_sc *sc)
{
if (sc->send_output_report)
sc->send_output_report(sc);
}
#endif
static void sony_state_worker(struct work_struct *work)
{
struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
sc->send_output_report(sc);
}
static int sony_allocate_output_report(struct sony_sc *sc)
{
if ((sc->quirks & SIXAXIS_CONTROLLER) ||
(sc->quirks & NAVIGATION_CONTROLLER))
sc->output_report_dmabuf =
devm_kmalloc(&sc->hdev->dev,
sizeof(union sixaxis_output_report_01),
GFP_KERNEL);
else if (sc->quirks & MOTION_CONTROLLER)
sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
MOTION_REPORT_0x02_SIZE,
GFP_KERNEL);
else
return 0;
if (!sc->output_report_dmabuf)
return -ENOMEM;
return 0;
}
#ifdef CONFIG_SONY_FF
static int sony_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct sony_sc *sc = hid_get_drvdata(hid);
if (effect->type != FF_RUMBLE)
return 0;
sc->left = effect->u.rumble.strong_magnitude / 256;
sc->right = effect->u.rumble.weak_magnitude / 256;
sony_schedule_work(sc, SONY_WORKER_STATE);
return 0;
}
static int sony_init_ff(struct sony_sc *sc)
{
struct hid_input *hidinput;
struct input_dev *input_dev;
if (list_empty(&sc->hdev->inputs)) {
hid_err(sc->hdev, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(sc->hdev->inputs.next, struct hid_input, list);
input_dev = hidinput->input;
input_set_capability(input_dev, EV_FF, FF_RUMBLE);
return input_ff_create_memless(input_dev, NULL, sony_play_effect);
}
#else
static int sony_init_ff(struct sony_sc *sc)
{
return 0;
}
#endif
static int sony_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct sony_sc *sc = power_supply_get_drvdata(psy);
unsigned long flags;
int ret = 0;
u8 battery_capacity;
int battery_status;
spin_lock_irqsave(&sc->lock, flags);
battery_capacity = sc->battery_capacity;
battery_status = sc->battery_status;
spin_unlock_irqrestore(&sc->lock, flags);
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = battery_capacity;
break;
case POWER_SUPPLY_PROP_STATUS:
val->intval = battery_status;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
{
const char *battery_str_fmt = append_dev_id ?
"sony_controller_battery_%pMR_%i" :
"sony_controller_battery_%pMR";
struct power_supply_config psy_cfg = { .drv_data = sc, };
struct hid_device *hdev = sc->hdev;
int ret;
/*
* Set the default battery level to 100% to avoid low battery warnings
* if the battery is polled before the first device report is received.
*/
sc->battery_capacity = 100;
sc->battery_desc.properties = sony_battery_props;
sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
sc->battery_desc.get_property = sony_battery_get_property;
sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
sc->battery_desc.use_for_apm = 0;
sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
battery_str_fmt, sc->mac_address, sc->device_id);
if (!sc->battery_desc.name)
return -ENOMEM;
sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
&psy_cfg);
if (IS_ERR(sc->battery)) {
ret = PTR_ERR(sc->battery);
hid_err(hdev, "Unable to register battery device\n");
return ret;
}
power_supply_powers(sc->battery, &hdev->dev);
return 0;
}
/*
* If a controller is plugged in via USB while already connected via Bluetooth
* it will show up as two devices. A global list of connected controllers and
* their MAC addresses is maintained to ensure that a device is only connected
* once.
*
* Some USB-only devices masquerade as Sixaxis controllers and all have the
* same dummy Bluetooth address, so a comparison of the connection type is
* required. Devices are only rejected in the case where two devices have
* matching Bluetooth addresses on different bus types.
*/
static inline int sony_compare_connection_type(struct sony_sc *sc0,
struct sony_sc *sc1)
{
const int sc0_not_bt = !(sc0->quirks & SONY_BT_DEVICE);
const int sc1_not_bt = !(sc1->quirks & SONY_BT_DEVICE);
return sc0_not_bt == sc1_not_bt;
}
static int sony_check_add_dev_list(struct sony_sc *sc)
{
struct sony_sc *entry;
unsigned long flags;
int ret;
spin_lock_irqsave(&sony_dev_list_lock, flags);
list_for_each_entry(entry, &sony_device_list, list_node) {
ret = memcmp(sc->mac_address, entry->mac_address,
sizeof(sc->mac_address));
if (!ret) {
if (sony_compare_connection_type(sc, entry)) {
ret = 1;
} else {
ret = -EEXIST;
hid_info(sc->hdev,
"controller with MAC address %pMR already connected\n",
sc->mac_address);
}
goto unlock;
}
}
ret = 0;
list_add(&(sc->list_node), &sony_device_list);
unlock:
spin_unlock_irqrestore(&sony_dev_list_lock, flags);
return ret;
}
static void sony_remove_dev_list(struct sony_sc *sc)
{
unsigned long flags;
if (sc->list_node.next) {
spin_lock_irqsave(&sony_dev_list_lock, flags);
list_del(&(sc->list_node));
spin_unlock_irqrestore(&sony_dev_list_lock, flags);
}
}
static int sony_get_bt_devaddr(struct sony_sc *sc)
{
int ret;
/* HIDP stores the device MAC address as a string in the uniq field. */
ret = strlen(sc->hdev->uniq);
if (ret != 17)
return -EINVAL;
ret = sscanf(sc->hdev->uniq,
"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
&sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);
if (ret != 6)
return -EINVAL;
return 0;
}
static int sony_check_add(struct sony_sc *sc)
{
u8 *buf = NULL;
int n, ret;
if ((sc->quirks & MOTION_CONTROLLER_BT) ||
(sc->quirks & NAVIGATION_CONTROLLER_BT) ||
(sc->quirks & SIXAXIS_CONTROLLER_BT)) {
/*
* sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
* address from the uniq string where HIDP stores it.
* As uniq cannot be guaranteed to be a MAC address in all cases
* a failure of this function should not prevent the connection.
*/
if (sony_get_bt_devaddr(sc) < 0) {
hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
return 0;
}
} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/*
* The MAC address of a Sixaxis controller connected via USB can
* be retrieved with feature report 0xf2. The address begins at
* offset 4.
*/
ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
ret = ret < 0 ? ret : -EINVAL;
goto out_free;
}
/*
* The Sixaxis device MAC in the report is big-endian and must
* be byte-swapped.
*/
for (n = 0; n < 6; n++)
sc->mac_address[5-n] = buf[4+n];
snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
"%pMR", sc->mac_address);
} else {
return 0;
}
ret = sony_check_add_dev_list(sc);
out_free:
kfree(buf);
return ret;
}
static int sony_set_device_id(struct sony_sc *sc)
{
int ret;
/*
* Only Sixaxis controllers get an id.
* All others are set to -1.
*/
if (sc->quirks & SIXAXIS_CONTROLLER) {
ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
GFP_KERNEL);
if (ret < 0) {
sc->device_id = -1;
return ret;
}
sc->device_id = ret;
} else {
sc->device_id = -1;
}
return 0;
}
static void sony_release_device_id(struct sony_sc *sc)
{
if (sc->device_id >= 0) {
ida_simple_remove(&sony_device_id_allocator, sc->device_id);
sc->device_id = -1;
}
}
static inline void sony_init_output_report(struct sony_sc *sc,
void (*send_output_report)(struct sony_sc *))
{
sc->send_output_report = send_output_report;
if (!sc->state_worker_initialized)
INIT_WORK(&sc->state_worker, sony_state_worker);
sc->state_worker_initialized = 1;
}
static inline void sony_cancel_work_sync(struct sony_sc *sc)
{
unsigned long flags;
if (sc->state_worker_initialized) {
spin_lock_irqsave(&sc->lock, flags);
sc->state_worker_initialized = 0;
spin_unlock_irqrestore(&sc->lock, flags);
cancel_work_sync(&sc->state_worker);
}
}
static int sony_input_configured(struct hid_device *hdev,
struct hid_input *hidinput)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
int append_dev_id;
int ret;
ret = sony_set_device_id(sc);
if (ret < 0) {
hid_err(hdev, "failed to allocate the device id\n");
goto err_stop;
}
ret = append_dev_id = sony_check_add(sc);
if (ret < 0)
goto err_stop;
ret = sony_allocate_output_report(sc);
if (ret < 0) {
hid_err(hdev, "failed to allocate the output report buffer\n");
goto err_stop;
}
if (sc->quirks & NAVIGATION_CONTROLLER_USB) {
/*
* The Sony Sixaxis does not handle HID Output Reports on the
* Interrupt EP like it could, so we need to force HID Output
* Reports to use HID_REQ_SET_REPORT on the Control EP.
*
* There is also another issue about HID Output Reports via USB,
* the Sixaxis does not want the report_id as part of the data
* packet, so we have to discard buf[0] when sending the actual
* control message, even for numbered reports, humpf!
*
* Additionally, the Sixaxis on USB isn't properly initialized
* until the PS logo button is pressed and as such won't retain
* any state set by an output report, so the initial
* configuration report is deferred until the first input
* report arrives.
*/
hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
sc->defer_initialization = 1;
ret = sixaxis_set_operational_usb(hdev);
if (ret < 0) {
hid_err(hdev, "Failed to set controller into operational mode\n");
goto err_stop;
}
sony_init_output_report(sc, sixaxis_send_output_report);
} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {
/*
* The Navigation controller wants output reports sent on the ctrl
* endpoint when connected via Bluetooth.
*/
hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
ret = sixaxis_set_operational_bt(hdev);
if (ret < 0) {
hid_err(hdev, "Failed to set controller into operational mode\n");
goto err_stop;
}
sony_init_output_report(sc, sixaxis_send_output_report);
} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
/*
* The Sony Sixaxis does not handle HID Output Reports on the
* Interrupt EP and the device only becomes active when the
* PS button is pressed. See comment for Navigation controller
* above for more details.
*/
hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
sc->defer_initialization = 1;
ret = sixaxis_set_operational_usb(hdev);
if (ret < 0) {
hid_err(hdev, "Failed to set controller into operational mode\n");
goto err_stop;
}
ret = sony_register_sensors(sc);
if (ret) {
hid_err(sc->hdev,
"Unable to initialize motion sensors: %d\n", ret);
goto err_stop;
}
sony_init_output_report(sc, sixaxis_send_output_report);
} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
/*
* The Sixaxis wants output reports sent on the ctrl endpoint
* when connected via Bluetooth.
*/
hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
ret = sixaxis_set_operational_bt(hdev);
if (ret < 0) {
hid_err(hdev, "Failed to set controller into operational mode\n");
goto err_stop;
}
ret = sony_register_sensors(sc);
if (ret) {
hid_err(sc->hdev,
"Unable to initialize motion sensors: %d\n", ret);
goto err_stop;
}
sony_init_output_report(sc, sixaxis_send_output_report);
} else if (sc->quirks & NSG_MRXU_REMOTE) {
/*
* The NSG-MRxU touchpad supports 2 touches and has a
* resolution of 1667x1868
*/
ret = sony_register_touchpad(sc, 2,
NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
if (ret) {
hid_err(sc->hdev,
"Unable to initialize multi-touch slots: %d\n",
ret);
goto err_stop;
}
} else if (sc->quirks & MOTION_CONTROLLER) {
sony_init_output_report(sc, motion_send_output_report);
} else {
ret = 0;
}
if (sc->quirks & SONY_LED_SUPPORT) {
ret = sony_leds_init(sc);
if (ret < 0)
goto err_stop;
}
if (sc->quirks & SONY_BATTERY_SUPPORT) {
ret = sony_battery_probe(sc, append_dev_id);
if (ret < 0)
goto err_stop;
/* Open the device to receive reports with battery info */
ret = hid_hw_open(hdev);
if (ret < 0) {
hid_err(hdev, "hw open failed\n");
goto err_stop;
}
}
if (sc->quirks & SONY_FF_SUPPORT) {
ret = sony_init_ff(sc);
if (ret < 0)
goto err_close;
}
return 0;
err_close:
hid_hw_close(hdev);
err_stop:
sony_cancel_work_sync(sc);
sony_remove_dev_list(sc);
sony_release_device_id(sc);
return ret;
}
static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
unsigned long quirks = id->driver_data;
struct sony_sc *sc;
struct usb_device *usbdev;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
if (!strcmp(hdev->name, "FutureMax Dance Mat"))
quirks |= FUTUREMAX_DANCE_MAT;
if (!strcmp(hdev->name, "SHANWAN PS3 GamePad") ||
!strcmp(hdev->name, "ShanWan PS(R) Ga`epad"))
quirks |= SHANWAN_GAMEPAD;
sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
if (sc == NULL) {
hid_err(hdev, "can't alloc sony descriptor\n");
return -ENOMEM;
}
spin_lock_init(&sc->lock);
sc->quirks = quirks;
hid_set_drvdata(hdev, sc);
sc->hdev = hdev;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
if (sc->quirks & VAIO_RDESC_CONSTANT)
connect_mask |= HID_CONNECT_HIDDEV_FORCE;
else if (sc->quirks & SIXAXIS_CONTROLLER)
connect_mask |= HID_CONNECT_HIDDEV_FORCE;
/* Patch the hw version on DS3 compatible devices, so applications can
* distinguish between the default HID mappings and the mappings defined
* by the Linux game controller spec. This is important for the SDL2
* library, which has a game controller database, which uses device ids
* in combination with version as a key.
*/
if (sc->quirks & SIXAXIS_CONTROLLER)
hdev->version |= 0x8000;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
/* sony_input_configured can fail, but this doesn't result
* in hid_hw_start failures (intended). Check whether
* the HID layer claimed the device else fail.
* We don't know the actual reason for the failure, most
* likely it is due to EEXIST in case of double connection
* of USB and Bluetooth, but could have been due to ENOMEM
* or other reasons as well.
*/
if (!(hdev->claimed & HID_CLAIMED_INPUT)) {
hid_err(hdev, "failed to claim input\n");
ret = -ENODEV;
goto err;
}
if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) {
if (!hid_is_usb(hdev)) {
ret = -EINVAL;
goto err;
}
usbdev = to_usb_device(sc->hdev->dev.parent->parent);
sc->ghl_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!sc->ghl_urb) {
ret = -ENOMEM;
goto err;
}
if (sc->quirks & GHL_GUITAR_PS3WIIU)
ret = ghl_init_urb(sc, usbdev, ghl_ps3wiiu_magic_data,
ARRAY_SIZE(ghl_ps3wiiu_magic_data));
else if (sc->quirks & GHL_GUITAR_PS4)
ret = ghl_init_urb(sc, usbdev, ghl_ps4_magic_data,
ARRAY_SIZE(ghl_ps4_magic_data));
if (ret) {
hid_err(hdev, "error preparing URB\n");
goto err;
}
timer_setup(&sc->ghl_poke_timer, ghl_magic_poke, 0);
mod_timer(&sc->ghl_poke_timer,
jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
}
return ret;
err:
hid_hw_stop(hdev);
return ret;
}
static void sony_remove(struct hid_device *hdev)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) {
del_timer_sync(&sc->ghl_poke_timer);
usb_free_urb(sc->ghl_urb);
}
hid_hw_close(hdev);
sony_cancel_work_sync(sc);
sony_remove_dev_list(sc);
sony_release_device_id(sc);
hid_hw_stop(hdev);
}
#ifdef CONFIG_PM
static int sony_suspend(struct hid_device *hdev, pm_message_t message)
{
#ifdef CONFIG_SONY_FF
/* On suspend stop any running force-feedback events */
if (SONY_FF_SUPPORT) {
struct sony_sc *sc = hid_get_drvdata(hdev);
sc->left = sc->right = 0;
sony_send_output_report(sc);
}
#endif
return 0;
}
static int sony_resume(struct hid_device *hdev)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
/*
* The Sixaxis and navigation controllers on USB need to be
* reinitialized on resume or they won't behave properly.
*/
if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
sixaxis_set_operational_usb(sc->hdev);
sc->defer_initialization = 1;
}
return 0;
}
#endif
static const struct hid_device_id sony_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
.driver_data = SIXAXIS_CONTROLLER_USB },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
.driver_data = NAVIGATION_CONTROLLER_USB },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
.driver_data = NAVIGATION_CONTROLLER_BT },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
.driver_data = MOTION_CONTROLLER_USB },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
.driver_data = MOTION_CONTROLLER_BT },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
.driver_data = SIXAXIS_CONTROLLER_BT },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
.driver_data = VAIO_RDESC_CONSTANT },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
.driver_data = VAIO_RDESC_CONSTANT },
/*
* Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
* Logitech joystick from the device descriptor.
*/
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
.driver_data = BUZZ_CONTROLLER },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
.driver_data = BUZZ_CONTROLLER },
/* PS3 BD Remote Control */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
.driver_data = PS3REMOTE },
/* Logitech Harmony Adapter for PS3 */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
.driver_data = PS3REMOTE },
/* SMK-Link PS3 BD Remote Control */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
.driver_data = PS3REMOTE },
/* Nyko Core Controller for PS3 */
{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
/* SMK-Link NSG-MR5U Remote Control */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
.driver_data = NSG_MR5U_REMOTE_BT },
/* SMK-Link NSG-MR7U Remote Control */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
.driver_data = NSG_MR7U_REMOTE_BT },
/* Guitar Hero Live PS3 and Wii U guitar dongles */
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3WIIU_GHLIVE_DONGLE),
.driver_data = GHL_GUITAR_PS3WIIU | GH_GUITAR_CONTROLLER },
/* Guitar Hero PC Guitar Dongle */
{ HID_USB_DEVICE(USB_VENDOR_ID_REDOCTANE, USB_DEVICE_ID_REDOCTANE_GUITAR_DONGLE),
.driver_data = GH_GUITAR_CONTROLLER },
/* Guitar Hero PS3 World Tour Guitar Dongle */
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3_GUITAR_DONGLE),
.driver_data = GH_GUITAR_CONTROLLER },
/* Guitar Hero Live PS4 guitar dongles */
{ HID_USB_DEVICE(USB_VENDOR_ID_REDOCTANE, USB_DEVICE_ID_REDOCTANE_PS4_GHLIVE_DONGLE),
.driver_data = GHL_GUITAR_PS4 | GH_GUITAR_CONTROLLER },
{ }
};
MODULE_DEVICE_TABLE(hid, sony_devices);
static struct hid_driver sony_driver = {
.name = "sony",
.id_table = sony_devices,
.input_mapping = sony_mapping,
.input_configured = sony_input_configured,
.probe = sony_probe,
.remove = sony_remove,
.report_fixup = sony_report_fixup,
.raw_event = sony_raw_event,
#ifdef CONFIG_PM
.suspend = sony_suspend,
.resume = sony_resume,
.reset_resume = sony_resume,
#endif
};
static int __init sony_init(void)
{
dbg_hid("Sony:%s\n", __func__);
return hid_register_driver(&sony_driver);
}
static void __exit sony_exit(void)
{
dbg_hid("Sony:%s\n", __func__);
hid_unregister_driver(&sony_driver);
ida_destroy(&sony_device_id_allocator);
}
module_init(sony_init);
module_exit(sony_exit);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-sony.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for Valve Steam Controller
*
* Copyright (c) 2018 Rodrigo Rivas Costa <[email protected]>
* Copyright (c) 2022 Valve Software
*
* Supports both the wired and wireless interfaces.
*
* This controller has a builtin emulation of mouse and keyboard: the right pad
* can be used as a mouse, the shoulder buttons are mouse buttons, A and B
* buttons are ENTER and ESCAPE, and so on. This is implemented as additional
* HID interfaces.
*
* This is known as the "lizard mode", because apparently lizards like to use
* the computer from the coach, without a proper mouse and keyboard.
*
* This driver will disable the lizard mode when the input device is opened
* and re-enable it when the input device is closed, so as not to break user
* mode behaviour. The lizard_mode parameter can be used to change that.
*
* There are a few user space applications (notably Steam Client) that use
* the hidraw interface directly to create input devices (XTest, uinput...).
* In order to avoid breaking them this driver creates a layered hidraw device,
* so it can detect when the client is running and then:
* - it will not send any command to the controller.
* - this input device will be removed, to avoid double input of the same
* user action.
* When the client is closed, this input device will be created again.
*
* For additional functions, such as changing the right-pad margin or switching
* the led, you can use the user-space tool at:
*
* https://github.com/rodrigorc/steamctrl
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/rcupdate.h>
#include <linux/delay.h>
#include <linux/power_supply.h>
#include "hid-ids.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Rodrigo Rivas Costa <[email protected]>");
static bool lizard_mode = true;
static DEFINE_MUTEX(steam_devices_lock);
static LIST_HEAD(steam_devices);
#define STEAM_QUIRK_WIRELESS BIT(0)
#define STEAM_QUIRK_DECK BIT(1)
/* Touch pads are 40 mm in diameter and 65535 units */
#define STEAM_PAD_RESOLUTION 1638
/* Trigger runs are about 5 mm and 256 units */
#define STEAM_TRIGGER_RESOLUTION 51
/* Joystick runs are about 5 mm and 256 units */
#define STEAM_JOYSTICK_RESOLUTION 51
/* Trigger runs are about 6 mm and 32768 units */
#define STEAM_DECK_TRIGGER_RESOLUTION 5461
/* Joystick runs are about 5 mm and 32768 units */
#define STEAM_DECK_JOYSTICK_RESOLUTION 6553
#define STEAM_PAD_FUZZ 256
/*
* Commands that can be sent in a feature report.
* Thanks to Valve for some valuable hints.
*/
#define STEAM_CMD_SET_MAPPINGS 0x80
#define STEAM_CMD_CLEAR_MAPPINGS 0x81
#define STEAM_CMD_GET_MAPPINGS 0x82
#define STEAM_CMD_GET_ATTRIB 0x83
#define STEAM_CMD_GET_ATTRIB_LABEL 0x84
#define STEAM_CMD_DEFAULT_MAPPINGS 0x85
#define STEAM_CMD_FACTORY_RESET 0x86
#define STEAM_CMD_WRITE_REGISTER 0x87
#define STEAM_CMD_CLEAR_REGISTER 0x88
#define STEAM_CMD_READ_REGISTER 0x89
#define STEAM_CMD_GET_REGISTER_LABEL 0x8a
#define STEAM_CMD_GET_REGISTER_MAX 0x8b
#define STEAM_CMD_GET_REGISTER_DEFAULT 0x8c
#define STEAM_CMD_SET_MODE 0x8d
#define STEAM_CMD_DEFAULT_MOUSE 0x8e
#define STEAM_CMD_FORCEFEEDBAK 0x8f
#define STEAM_CMD_REQUEST_COMM_STATUS 0xb4
#define STEAM_CMD_GET_SERIAL 0xae
#define STEAM_CMD_HAPTIC_RUMBLE 0xeb
/* Some useful register ids */
#define STEAM_REG_LPAD_MODE 0x07
#define STEAM_REG_RPAD_MODE 0x08
#define STEAM_REG_RPAD_MARGIN 0x18
#define STEAM_REG_LED 0x2d
#define STEAM_REG_GYRO_MODE 0x30
#define STEAM_REG_LPAD_CLICK_PRESSURE 0x34
#define STEAM_REG_RPAD_CLICK_PRESSURE 0x35
/* Raw event identifiers */
#define STEAM_EV_INPUT_DATA 0x01
#define STEAM_EV_CONNECT 0x03
#define STEAM_EV_BATTERY 0x04
#define STEAM_EV_DECK_INPUT_DATA 0x09
/* Values for GYRO_MODE (bitmask) */
#define STEAM_GYRO_MODE_OFF 0x0000
#define STEAM_GYRO_MODE_STEERING 0x0001
#define STEAM_GYRO_MODE_TILT 0x0002
#define STEAM_GYRO_MODE_SEND_ORIENTATION 0x0004
#define STEAM_GYRO_MODE_SEND_RAW_ACCEL 0x0008
#define STEAM_GYRO_MODE_SEND_RAW_GYRO 0x0010
/* Other random constants */
#define STEAM_SERIAL_LEN 10
struct steam_device {
struct list_head list;
spinlock_t lock;
struct hid_device *hdev, *client_hdev;
struct mutex mutex;
bool client_opened;
struct input_dev __rcu *input;
unsigned long quirks;
struct work_struct work_connect;
bool connected;
char serial_no[STEAM_SERIAL_LEN + 1];
struct power_supply_desc battery_desc;
struct power_supply __rcu *battery;
u8 battery_charge;
u16 voltage;
struct delayed_work heartbeat;
struct work_struct rumble_work;
u16 rumble_left;
u16 rumble_right;
};
static int steam_recv_report(struct steam_device *steam,
u8 *data, int size)
{
struct hid_report *r;
u8 *buf;
int ret;
r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];
if (!r) {
hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n");
return -EINVAL;
}
if (hid_report_len(r) < 64)
return -EINVAL;
buf = hid_alloc_report_buf(r, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/*
* The report ID is always 0, so strip the first byte from the output.
* hid_report_len() is not counting the report ID, so +1 to the length
* or else we get a EOVERFLOW. We are safe from a buffer overflow
* because hid_alloc_report_buf() allocates +7 bytes.
*/
ret = hid_hw_raw_request(steam->hdev, 0x00,
buf, hid_report_len(r) + 1,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret > 0)
memcpy(data, buf + 1, min(size, ret - 1));
kfree(buf);
return ret;
}
static int steam_send_report(struct steam_device *steam,
u8 *cmd, int size)
{
struct hid_report *r;
u8 *buf;
unsigned int retries = 50;
int ret;
r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];
if (!r) {
hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n");
return -EINVAL;
}
if (hid_report_len(r) < 64)
return -EINVAL;
buf = hid_alloc_report_buf(r, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/* The report ID is always 0 */
memcpy(buf + 1, cmd, size);
/*
* Sometimes the wireless controller fails with EPIPE
* when sending a feature report.
* Doing a HID_REQ_GET_REPORT and waiting for a while
* seems to fix that.
*/
do {
ret = hid_hw_raw_request(steam->hdev, 0,
buf, max(size, 64) + 1,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret != -EPIPE)
break;
msleep(20);
} while (--retries);
kfree(buf);
if (ret < 0)
hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__,
ret, size, cmd);
return ret;
}
static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd)
{
return steam_send_report(steam, &cmd, 1);
}
static int steam_write_registers(struct steam_device *steam,
/* u8 reg, u16 val */...)
{
/* Send: 0x87 len (reg valLo valHi)* */
u8 reg;
u16 val;
u8 cmd[64] = {STEAM_CMD_WRITE_REGISTER, 0x00};
int ret;
va_list args;
va_start(args, steam);
for (;;) {
reg = va_arg(args, int);
if (reg == 0)
break;
val = va_arg(args, int);
cmd[cmd[1] + 2] = reg;
cmd[cmd[1] + 3] = val & 0xff;
cmd[cmd[1] + 4] = val >> 8;
cmd[1] += 3;
}
va_end(args);
ret = steam_send_report(steam, cmd, 2 + cmd[1]);
if (ret < 0)
return ret;
/*
* Sometimes a lingering report for this command can
* get read back instead of the last set report if
* this isn't explicitly queried
*/
return steam_recv_report(steam, cmd, 2 + cmd[1]);
}
static int steam_get_serial(struct steam_device *steam)
{
/*
* Send: 0xae 0x15 0x01
* Recv: 0xae 0x15 0x01 serialnumber (10 chars)
*/
int ret;
u8 cmd[] = {STEAM_CMD_GET_SERIAL, 0x15, 0x01};
u8 reply[3 + STEAM_SERIAL_LEN + 1];
ret = steam_send_report(steam, cmd, sizeof(cmd));
if (ret < 0)
return ret;
ret = steam_recv_report(steam, reply, sizeof(reply));
if (ret < 0)
return ret;
if (reply[0] != 0xae || reply[1] != 0x15 || reply[2] != 0x01)
return -EIO;
reply[3 + STEAM_SERIAL_LEN] = 0;
strscpy(steam->serial_no, reply + 3, sizeof(steam->serial_no));
return 0;
}
/*
* This command requests the wireless adaptor to post an event
* with the connection status. Useful if this driver is loaded when
* the controller is already connected.
*/
static inline int steam_request_conn_status(struct steam_device *steam)
{
return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS);
}
static inline int steam_haptic_rumble(struct steam_device *steam,
u16 intensity, u16 left_speed, u16 right_speed,
u8 left_gain, u8 right_gain)
{
u8 report[11] = {STEAM_CMD_HAPTIC_RUMBLE, 9};
report[3] = intensity & 0xFF;
report[4] = intensity >> 8;
report[5] = left_speed & 0xFF;
report[6] = left_speed >> 8;
report[7] = right_speed & 0xFF;
report[8] = right_speed >> 8;
report[9] = left_gain;
report[10] = right_gain;
return steam_send_report(steam, report, sizeof(report));
}
static void steam_haptic_rumble_cb(struct work_struct *work)
{
struct steam_device *steam = container_of(work, struct steam_device,
rumble_work);
steam_haptic_rumble(steam, 0, steam->rumble_left,
steam->rumble_right, 2, 0);
}
#ifdef CONFIG_STEAM_FF
static int steam_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct steam_device *steam = input_get_drvdata(dev);
steam->rumble_left = effect->u.rumble.strong_magnitude;
steam->rumble_right = effect->u.rumble.weak_magnitude;
return schedule_work(&steam->rumble_work);
}
#endif
static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
{
if (enable) {
/* enable esc, enter, cursors */
steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS);
/* enable mouse */
steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE);
steam_write_registers(steam,
STEAM_REG_RPAD_MARGIN, 0x01, /* enable margin */
0);
cancel_delayed_work_sync(&steam->heartbeat);
} else {
/* disable esc, enter, cursor */
steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);
if (steam->quirks & STEAM_QUIRK_DECK) {
steam_write_registers(steam,
STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
STEAM_REG_RPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
0);
/*
* The Steam Deck has a watchdog that automatically enables
* lizard mode if it doesn't see any traffic for too long
*/
if (!work_busy(&steam->heartbeat.work))
schedule_delayed_work(&steam->heartbeat, 5 * HZ);
} else {
steam_write_registers(steam,
STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */
STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
0);
}
}
}
static int steam_input_open(struct input_dev *dev)
{
struct steam_device *steam = input_get_drvdata(dev);
mutex_lock(&steam->mutex);
if (!steam->client_opened && lizard_mode)
steam_set_lizard_mode(steam, false);
mutex_unlock(&steam->mutex);
return 0;
}
static void steam_input_close(struct input_dev *dev)
{
struct steam_device *steam = input_get_drvdata(dev);
mutex_lock(&steam->mutex);
if (!steam->client_opened && lizard_mode)
steam_set_lizard_mode(steam, true);
mutex_unlock(&steam->mutex);
}
static enum power_supply_property steam_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CAPACITY,
};
static int steam_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct steam_device *steam = power_supply_get_drvdata(psy);
unsigned long flags;
s16 volts;
u8 batt;
int ret = 0;
spin_lock_irqsave(&steam->lock, flags);
volts = steam->voltage;
batt = steam->battery_charge;
spin_unlock_irqrestore(&steam->lock, flags);
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = volts * 1000; /* mV -> uV */
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = batt;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int steam_battery_register(struct steam_device *steam)
{
struct power_supply *battery;
struct power_supply_config battery_cfg = { .drv_data = steam, };
unsigned long flags;
int ret;
steam->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
steam->battery_desc.properties = steam_battery_props;
steam->battery_desc.num_properties = ARRAY_SIZE(steam_battery_props);
steam->battery_desc.get_property = steam_battery_get_property;
steam->battery_desc.name = devm_kasprintf(&steam->hdev->dev,
GFP_KERNEL, "steam-controller-%s-battery",
steam->serial_no);
if (!steam->battery_desc.name)
return -ENOMEM;
/* avoid the warning of 0% battery while waiting for the first info */
spin_lock_irqsave(&steam->lock, flags);
steam->voltage = 3000;
steam->battery_charge = 100;
spin_unlock_irqrestore(&steam->lock, flags);
battery = power_supply_register(&steam->hdev->dev,
&steam->battery_desc, &battery_cfg);
if (IS_ERR(battery)) {
ret = PTR_ERR(battery);
hid_err(steam->hdev,
"%s:power_supply_register failed with error %d\n",
__func__, ret);
return ret;
}
rcu_assign_pointer(steam->battery, battery);
power_supply_powers(battery, &steam->hdev->dev);
return 0;
}
static int steam_input_register(struct steam_device *steam)
{
struct hid_device *hdev = steam->hdev;
struct input_dev *input;
int ret;
rcu_read_lock();
input = rcu_dereference(steam->input);
rcu_read_unlock();
if (input) {
dbg_hid("%s: already connected\n", __func__);
return 0;
}
input = input_allocate_device();
if (!input)
return -ENOMEM;
input_set_drvdata(input, steam);
input->dev.parent = &hdev->dev;
input->open = steam_input_open;
input->close = steam_input_close;
input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? "Wireless Steam Controller" :
(steam->quirks & STEAM_QUIRK_DECK) ? "Steam Deck" :
"Steam Controller";
input->phys = hdev->phys;
input->uniq = steam->serial_no;
input->id.bustype = hdev->bus;
input->id.vendor = hdev->vendor;
input->id.product = hdev->product;
input->id.version = hdev->version;
input_set_capability(input, EV_KEY, BTN_TR2);
input_set_capability(input, EV_KEY, BTN_TL2);
input_set_capability(input, EV_KEY, BTN_TR);
input_set_capability(input, EV_KEY, BTN_TL);
input_set_capability(input, EV_KEY, BTN_Y);
input_set_capability(input, EV_KEY, BTN_B);
input_set_capability(input, EV_KEY, BTN_X);
input_set_capability(input, EV_KEY, BTN_A);
input_set_capability(input, EV_KEY, BTN_DPAD_UP);
input_set_capability(input, EV_KEY, BTN_DPAD_RIGHT);
input_set_capability(input, EV_KEY, BTN_DPAD_LEFT);
input_set_capability(input, EV_KEY, BTN_DPAD_DOWN);
input_set_capability(input, EV_KEY, BTN_SELECT);
input_set_capability(input, EV_KEY, BTN_MODE);
input_set_capability(input, EV_KEY, BTN_START);
input_set_capability(input, EV_KEY, BTN_THUMBR);
input_set_capability(input, EV_KEY, BTN_THUMBL);
input_set_capability(input, EV_KEY, BTN_THUMB);
input_set_capability(input, EV_KEY, BTN_THUMB2);
if (steam->quirks & STEAM_QUIRK_DECK) {
input_set_capability(input, EV_KEY, BTN_BASE);
input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY1);
input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY2);
input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY3);
input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY4);
} else {
input_set_capability(input, EV_KEY, BTN_GEAR_DOWN);
input_set_capability(input, EV_KEY, BTN_GEAR_UP);
}
input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0);
input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0);
input_set_abs_params(input, ABS_HAT0X, -32767, 32767,
STEAM_PAD_FUZZ, 0);
input_set_abs_params(input, ABS_HAT0Y, -32767, 32767,
STEAM_PAD_FUZZ, 0);
if (steam->quirks & STEAM_QUIRK_DECK) {
input_set_abs_params(input, ABS_HAT2Y, 0, 32767, 0, 0);
input_set_abs_params(input, ABS_HAT2X, 0, 32767, 0, 0);
input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0);
input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0);
input_set_abs_params(input, ABS_HAT1X, -32767, 32767,
STEAM_PAD_FUZZ, 0);
input_set_abs_params(input, ABS_HAT1Y, -32767, 32767,
STEAM_PAD_FUZZ, 0);
input_abs_set_res(input, ABS_X, STEAM_DECK_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_Y, STEAM_DECK_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_RX, STEAM_DECK_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_RY, STEAM_DECK_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_HAT1X, STEAM_PAD_RESOLUTION);
input_abs_set_res(input, ABS_HAT1Y, STEAM_PAD_RESOLUTION);
input_abs_set_res(input, ABS_HAT2Y, STEAM_DECK_TRIGGER_RESOLUTION);
input_abs_set_res(input, ABS_HAT2X, STEAM_DECK_TRIGGER_RESOLUTION);
} else {
input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0);
input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0);
input_set_abs_params(input, ABS_RX, -32767, 32767,
STEAM_PAD_FUZZ, 0);
input_set_abs_params(input, ABS_RY, -32767, 32767,
STEAM_PAD_FUZZ, 0);
input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION);
input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION);
input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION);
input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION);
input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION);
}
input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION);
input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION);
#ifdef CONFIG_STEAM_FF
if (steam->quirks & STEAM_QUIRK_DECK) {
input_set_capability(input, EV_FF, FF_RUMBLE);
ret = input_ff_create_memless(input, NULL, steam_play_effect);
if (ret)
goto input_register_fail;
}
#endif
ret = input_register_device(input);
if (ret)
goto input_register_fail;
rcu_assign_pointer(steam->input, input);
return 0;
input_register_fail:
input_free_device(input);
return ret;
}
static void steam_input_unregister(struct steam_device *steam)
{
struct input_dev *input;
rcu_read_lock();
input = rcu_dereference(steam->input);
rcu_read_unlock();
if (!input)
return;
RCU_INIT_POINTER(steam->input, NULL);
synchronize_rcu();
input_unregister_device(input);
}
static void steam_battery_unregister(struct steam_device *steam)
{
struct power_supply *battery;
rcu_read_lock();
battery = rcu_dereference(steam->battery);
rcu_read_unlock();
if (!battery)
return;
RCU_INIT_POINTER(steam->battery, NULL);
synchronize_rcu();
power_supply_unregister(battery);
}
static int steam_register(struct steam_device *steam)
{
int ret;
bool client_opened;
/*
* This function can be called several times in a row with the
* wireless adaptor, without steam_unregister() between them, because
* another client send a get_connection_status command, for example.
* The battery and serial number are set just once per device.
*/
if (!steam->serial_no[0]) {
/*
* Unlikely, but getting the serial could fail, and it is not so
* important, so make up a serial number and go on.
*/
mutex_lock(&steam->mutex);
if (steam_get_serial(steam) < 0)
strscpy(steam->serial_no, "XXXXXXXXXX",
sizeof(steam->serial_no));
mutex_unlock(&steam->mutex);
hid_info(steam->hdev, "Steam Controller '%s' connected",
steam->serial_no);
/* ignore battery errors, we can live without it */
if (steam->quirks & STEAM_QUIRK_WIRELESS)
steam_battery_register(steam);
mutex_lock(&steam_devices_lock);
if (list_empty(&steam->list))
list_add(&steam->list, &steam_devices);
mutex_unlock(&steam_devices_lock);
}
mutex_lock(&steam->mutex);
client_opened = steam->client_opened;
if (!client_opened)
steam_set_lizard_mode(steam, lizard_mode);
mutex_unlock(&steam->mutex);
if (!client_opened)
ret = steam_input_register(steam);
else
ret = 0;
return ret;
}
static void steam_unregister(struct steam_device *steam)
{
steam_battery_unregister(steam);
steam_input_unregister(steam);
if (steam->serial_no[0]) {
hid_info(steam->hdev, "Steam Controller '%s' disconnected",
steam->serial_no);
mutex_lock(&steam_devices_lock);
list_del_init(&steam->list);
mutex_unlock(&steam_devices_lock);
steam->serial_no[0] = 0;
}
}
static void steam_work_connect_cb(struct work_struct *work)
{
struct steam_device *steam = container_of(work, struct steam_device,
work_connect);
unsigned long flags;
bool connected;
int ret;
spin_lock_irqsave(&steam->lock, flags);
connected = steam->connected;
spin_unlock_irqrestore(&steam->lock, flags);
if (connected) {
ret = steam_register(steam);
if (ret) {
hid_err(steam->hdev,
"%s:steam_register failed with error %d\n",
__func__, ret);
}
} else {
steam_unregister(steam);
}
}
static bool steam_is_valve_interface(struct hid_device *hdev)
{
struct hid_report_enum *rep_enum;
/*
* The wired device creates 3 interfaces:
* 0: emulated mouse.
* 1: emulated keyboard.
* 2: the real game pad.
* The wireless device creates 5 interfaces:
* 0: emulated keyboard.
* 1-4: slots where up to 4 real game pads will be connected to.
* We know which one is the real gamepad interface because they are the
* only ones with a feature report.
*/
rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
return !list_empty(&rep_enum->report_list);
}
static void steam_lizard_mode_heartbeat(struct work_struct *work)
{
struct steam_device *steam = container_of(work, struct steam_device,
heartbeat.work);
mutex_lock(&steam->mutex);
if (!steam->client_opened && steam->client_hdev) {
steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);
steam_write_registers(steam,
STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
0);
schedule_delayed_work(&steam->heartbeat, 5 * HZ);
}
mutex_unlock(&steam->mutex);
}
static int steam_client_ll_parse(struct hid_device *hdev)
{
struct steam_device *steam = hdev->driver_data;
return hid_parse_report(hdev, steam->hdev->dev_rdesc,
steam->hdev->dev_rsize);
}
static int steam_client_ll_start(struct hid_device *hdev)
{
return 0;
}
static void steam_client_ll_stop(struct hid_device *hdev)
{
}
static int steam_client_ll_open(struct hid_device *hdev)
{
struct steam_device *steam = hdev->driver_data;
mutex_lock(&steam->mutex);
steam->client_opened = true;
mutex_unlock(&steam->mutex);
steam_input_unregister(steam);
return 0;
}
static void steam_client_ll_close(struct hid_device *hdev)
{
struct steam_device *steam = hdev->driver_data;
unsigned long flags;
bool connected;
spin_lock_irqsave(&steam->lock, flags);
connected = steam->connected;
spin_unlock_irqrestore(&steam->lock, flags);
mutex_lock(&steam->mutex);
steam->client_opened = false;
if (connected)
steam_set_lizard_mode(steam, lizard_mode);
mutex_unlock(&steam->mutex);
if (connected)
steam_input_register(steam);
}
static int steam_client_ll_raw_request(struct hid_device *hdev,
unsigned char reportnum, u8 *buf,
size_t count, unsigned char report_type,
int reqtype)
{
struct steam_device *steam = hdev->driver_data;
return hid_hw_raw_request(steam->hdev, reportnum, buf, count,
report_type, reqtype);
}
static const struct hid_ll_driver steam_client_ll_driver = {
.parse = steam_client_ll_parse,
.start = steam_client_ll_start,
.stop = steam_client_ll_stop,
.open = steam_client_ll_open,
.close = steam_client_ll_close,
.raw_request = steam_client_ll_raw_request,
};
static struct hid_device *steam_create_client_hid(struct hid_device *hdev)
{
struct hid_device *client_hdev;
client_hdev = hid_allocate_device();
if (IS_ERR(client_hdev))
return client_hdev;
client_hdev->ll_driver = &steam_client_ll_driver;
client_hdev->dev.parent = hdev->dev.parent;
client_hdev->bus = hdev->bus;
client_hdev->vendor = hdev->vendor;
client_hdev->product = hdev->product;
client_hdev->version = hdev->version;
client_hdev->type = hdev->type;
client_hdev->country = hdev->country;
strscpy(client_hdev->name, hdev->name,
sizeof(client_hdev->name));
strscpy(client_hdev->phys, hdev->phys,
sizeof(client_hdev->phys));
/*
* Since we use the same device info than the real interface to
* trick userspace, we will be calling steam_probe recursively.
* We need to recognize the client interface somehow.
*/
client_hdev->group = HID_GROUP_STEAM;
return client_hdev;
}
static int steam_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct steam_device *steam;
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev,
"%s:parse of hid interface failed\n", __func__);
return ret;
}
/*
* The virtual client_dev is only used for hidraw.
* Also avoid the recursive probe.
*/
if (hdev->group == HID_GROUP_STEAM)
return hid_hw_start(hdev, HID_CONNECT_HIDRAW);
/*
* The non-valve interfaces (mouse and keyboard emulation) are
* connected without changes.
*/
if (!steam_is_valve_interface(hdev))
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
steam = devm_kzalloc(&hdev->dev, sizeof(*steam), GFP_KERNEL);
if (!steam) {
ret = -ENOMEM;
goto steam_alloc_fail;
}
steam->hdev = hdev;
hid_set_drvdata(hdev, steam);
spin_lock_init(&steam->lock);
mutex_init(&steam->mutex);
steam->quirks = id->driver_data;
INIT_WORK(&steam->work_connect, steam_work_connect_cb);
INIT_LIST_HEAD(&steam->list);
INIT_DEFERRABLE_WORK(&steam->heartbeat, steam_lizard_mode_heartbeat);
INIT_WORK(&steam->rumble_work, steam_haptic_rumble_cb);
steam->client_hdev = steam_create_client_hid(hdev);
if (IS_ERR(steam->client_hdev)) {
ret = PTR_ERR(steam->client_hdev);
goto client_hdev_fail;
}
steam->client_hdev->driver_data = steam;
/*
* With the real steam controller interface, do not connect hidraw.
* Instead, create the client_hid and connect that.
*/
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW);
if (ret)
goto hid_hw_start_fail;
ret = hid_add_device(steam->client_hdev);
if (ret)
goto client_hdev_add_fail;
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev,
"%s:hid_hw_open\n",
__func__);
goto hid_hw_open_fail;
}
if (steam->quirks & STEAM_QUIRK_WIRELESS) {
hid_info(hdev, "Steam wireless receiver connected");
/* If using a wireless adaptor ask for connection status */
steam->connected = false;
steam_request_conn_status(steam);
} else {
/* A wired connection is always present */
steam->connected = true;
ret = steam_register(steam);
if (ret) {
hid_err(hdev,
"%s:steam_register failed with error %d\n",
__func__, ret);
goto input_register_fail;
}
}
return 0;
input_register_fail:
hid_hw_open_fail:
client_hdev_add_fail:
hid_hw_stop(hdev);
hid_hw_start_fail:
hid_destroy_device(steam->client_hdev);
client_hdev_fail:
cancel_work_sync(&steam->work_connect);
cancel_delayed_work_sync(&steam->heartbeat);
cancel_work_sync(&steam->rumble_work);
steam_alloc_fail:
hid_err(hdev, "%s: failed with error %d\n",
__func__, ret);
return ret;
}
static void steam_remove(struct hid_device *hdev)
{
struct steam_device *steam = hid_get_drvdata(hdev);
if (!steam || hdev->group == HID_GROUP_STEAM) {
hid_hw_stop(hdev);
return;
}
hid_destroy_device(steam->client_hdev);
mutex_lock(&steam->mutex);
steam->client_hdev = NULL;
steam->client_opened = false;
cancel_delayed_work_sync(&steam->heartbeat);
mutex_unlock(&steam->mutex);
cancel_work_sync(&steam->work_connect);
if (steam->quirks & STEAM_QUIRK_WIRELESS) {
hid_info(hdev, "Steam wireless receiver disconnected");
}
hid_hw_close(hdev);
hid_hw_stop(hdev);
steam_unregister(steam);
}
static void steam_do_connect_event(struct steam_device *steam, bool connected)
{
unsigned long flags;
bool changed;
spin_lock_irqsave(&steam->lock, flags);
changed = steam->connected != connected;
steam->connected = connected;
spin_unlock_irqrestore(&steam->lock, flags);
if (changed && schedule_work(&steam->work_connect) == 0)
dbg_hid("%s: connected=%d event already queued\n",
__func__, connected);
}
/*
* Some input data in the protocol has the opposite sign.
* Clamp the values to 32767..-32767 so that the range is
* symmetrical and can be negated safely.
*/
static inline s16 steam_le16(u8 *data)
{
s16 x = (s16) le16_to_cpup((__le16 *)data);
return x == -32768 ? -32767 : x;
}
/*
* The size for this message payload is 60.
* The known values are:
* (* values are not sent through wireless)
* (* accelerator/gyro is disabled by default)
* Offset| Type | Mapped to |Meaning
* -------+-------+-----------+--------------------------
* 4-7 | u32 | -- | sequence number
* 8-10 | 24bit | see below | buttons
* 11 | u8 | ABS_HAT2Y | left trigger
* 12 | u8 | ABS_HAT2X | right trigger
* 13-15 | -- | -- | always 0
* 16-17 | s16 | ABS_X/ABS_HAT0X | X value
* 18-19 | s16 | ABS_Y/ABS_HAT0Y | Y value
* 20-21 | s16 | ABS_RX | right-pad X value
* 22-23 | s16 | ABS_RY | right-pad Y value
* 24-25 | s16 | -- | * left trigger
* 26-27 | s16 | -- | * right trigger
* 28-29 | s16 | -- | * accelerometer X value
* 30-31 | s16 | -- | * accelerometer Y value
* 32-33 | s16 | -- | * accelerometer Z value
* 34-35 | s16 | -- | gyro X value
* 36-36 | s16 | -- | gyro Y value
* 38-39 | s16 | -- | gyro Z value
* 40-41 | s16 | -- | quaternion W value
* 42-43 | s16 | -- | quaternion X value
* 44-45 | s16 | -- | quaternion Y value
* 46-47 | s16 | -- | quaternion Z value
* 48-49 | -- | -- | always 0
* 50-51 | s16 | -- | * left trigger (uncalibrated)
* 52-53 | s16 | -- | * right trigger (uncalibrated)
* 54-55 | s16 | -- | * joystick X value (uncalibrated)
* 56-57 | s16 | -- | * joystick Y value (uncalibrated)
* 58-59 | s16 | -- | * left-pad X value
* 60-61 | s16 | -- | * left-pad Y value
* 62-63 | u16 | -- | * battery voltage
*
* The buttons are:
* Bit | Mapped to | Description
* ------+------------+--------------------------------
* 8.0 | BTN_TR2 | right trigger fully pressed
* 8.1 | BTN_TL2 | left trigger fully pressed
* 8.2 | BTN_TR | right shoulder
* 8.3 | BTN_TL | left shoulder
* 8.4 | BTN_Y | button Y
* 8.5 | BTN_B | button B
* 8.6 | BTN_X | button X
* 8.7 | BTN_A | button A
* 9.0 | BTN_DPAD_UP | left-pad up
* 9.1 | BTN_DPAD_RIGHT | left-pad right
* 9.2 | BTN_DPAD_LEFT | left-pad left
* 9.3 | BTN_DPAD_DOWN | left-pad down
* 9.4 | BTN_SELECT | menu left
* 9.5 | BTN_MODE | steam logo
* 9.6 | BTN_START | menu right
* 9.7 | BTN_GEAR_DOWN | left back lever
* 10.0 | BTN_GEAR_UP | right back lever
* 10.1 | -- | left-pad clicked
* 10.2 | BTN_THUMBR | right-pad clicked
* 10.3 | BTN_THUMB | left-pad touched (but see explanation below)
* 10.4 | BTN_THUMB2 | right-pad touched
* 10.5 | -- | unknown
* 10.6 | BTN_THUMBL | joystick clicked
* 10.7 | -- | lpad_and_joy
*/
static void steam_do_input_event(struct steam_device *steam,
struct input_dev *input, u8 *data)
{
/* 24 bits of buttons */
u8 b8, b9, b10;
s16 x, y;
bool lpad_touched, lpad_and_joy;
b8 = data[8];
b9 = data[9];
b10 = data[10];
input_report_abs(input, ABS_HAT2Y, data[11]);
input_report_abs(input, ABS_HAT2X, data[12]);
/*
* These two bits tells how to interpret the values X and Y.
* lpad_and_joy tells that the joystick and the lpad are used at the
* same time.
* lpad_touched tells whether X/Y are to be read as lpad coord or
* joystick values.
* (lpad_touched || lpad_and_joy) tells if the lpad is really touched.
*/
lpad_touched = b10 & BIT(3);
lpad_and_joy = b10 & BIT(7);
x = steam_le16(data + 16);
y = -steam_le16(data + 18);
input_report_abs(input, lpad_touched ? ABS_HAT0X : ABS_X, x);
input_report_abs(input, lpad_touched ? ABS_HAT0Y : ABS_Y, y);
/* Check if joystick is centered */
if (lpad_touched && !lpad_and_joy) {
input_report_abs(input, ABS_X, 0);
input_report_abs(input, ABS_Y, 0);
}
/* Check if lpad is untouched */
if (!(lpad_touched || lpad_and_joy)) {
input_report_abs(input, ABS_HAT0X, 0);
input_report_abs(input, ABS_HAT0Y, 0);
}
input_report_abs(input, ABS_RX, steam_le16(data + 20));
input_report_abs(input, ABS_RY, -steam_le16(data + 22));
input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0)));
input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1)));
input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2)));
input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3)));
input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4)));
input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5)));
input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6)));
input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7)));
input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4)));
input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5)));
input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6)));
input_event(input, EV_KEY, BTN_GEAR_DOWN, !!(b9 & BIT(7)));
input_event(input, EV_KEY, BTN_GEAR_UP, !!(b10 & BIT(0)));
input_event(input, EV_KEY, BTN_THUMBR, !!(b10 & BIT(2)));
input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6)));
input_event(input, EV_KEY, BTN_THUMB, lpad_touched || lpad_and_joy);
input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(4)));
input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0)));
input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1)));
input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2)));
input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3)));
input_sync(input);
}
/*
* The size for this message payload is 56.
* The known values are:
* Offset| Type | Mapped to |Meaning
* -------+-------+-----------+--------------------------
* 4-7 | u32 | -- | sequence number
* 8-15 | u64 | see below | buttons
* 16-17 | s16 | ABS_HAT0X | left-pad X value
* 18-19 | s16 | ABS_HAT0Y | left-pad Y value
* 20-21 | s16 | ABS_HAT1X | right-pad X value
* 22-23 | s16 | ABS_HAT1Y | right-pad Y value
* 24-25 | s16 | -- | accelerometer X value
* 26-27 | s16 | -- | accelerometer Y value
* 28-29 | s16 | -- | accelerometer Z value
* 30-31 | s16 | -- | gyro X value
* 32-33 | s16 | -- | gyro Y value
* 34-35 | s16 | -- | gyro Z value
* 36-37 | s16 | -- | quaternion W value
* 38-39 | s16 | -- | quaternion X value
* 40-41 | s16 | -- | quaternion Y value
* 42-43 | s16 | -- | quaternion Z value
* 44-45 | u16 | ABS_HAT2Y | left trigger (uncalibrated)
* 46-47 | u16 | ABS_HAT2X | right trigger (uncalibrated)
* 48-49 | s16 | ABS_X | left joystick X
* 50-51 | s16 | ABS_Y | left joystick Y
* 52-53 | s16 | ABS_RX | right joystick X
* 54-55 | s16 | ABS_RY | right joystick Y
* 56-57 | u16 | -- | left pad pressure
* 58-59 | u16 | -- | right pad pressure
*
* The buttons are:
* Bit | Mapped to | Description
* ------+------------+--------------------------------
* 8.0 | BTN_TR2 | right trigger fully pressed
* 8.1 | BTN_TL2 | left trigger fully pressed
* 8.2 | BTN_TR | right shoulder
* 8.3 | BTN_TL | left shoulder
* 8.4 | BTN_Y | button Y
* 8.5 | BTN_B | button B
* 8.6 | BTN_X | button X
* 8.7 | BTN_A | button A
* 9.0 | BTN_DPAD_UP | left-pad up
* 9.1 | BTN_DPAD_RIGHT | left-pad right
* 9.2 | BTN_DPAD_LEFT | left-pad left
* 9.3 | BTN_DPAD_DOWN | left-pad down
* 9.4 | BTN_SELECT | menu left
* 9.5 | BTN_MODE | steam logo
* 9.6 | BTN_START | menu right
* 9.7 | BTN_TRIGGER_HAPPY3 | left bottom grip button
* 10.0 | BTN_TRIGGER_HAPPY4 | right bottom grip button
* 10.1 | BTN_THUMB | left pad pressed
* 10.2 | BTN_THUMB2 | right pad pressed
* 10.3 | -- | left pad touched
* 10.4 | -- | right pad touched
* 10.5 | -- | unknown
* 10.6 | BTN_THUMBL | left joystick clicked
* 10.7 | -- | unknown
* 11.0 | -- | unknown
* 11.1 | -- | unknown
* 11.2 | BTN_THUMBR | right joystick clicked
* 11.3 | -- | unknown
* 11.4 | -- | unknown
* 11.5 | -- | unknown
* 11.6 | -- | unknown
* 11.7 | -- | unknown
* 12.0 | -- | unknown
* 12.1 | -- | unknown
* 12.2 | -- | unknown
* 12.3 | -- | unknown
* 12.4 | -- | unknown
* 12.5 | -- | unknown
* 12.6 | -- | unknown
* 12.7 | -- | unknown
* 13.0 | -- | unknown
* 13.1 | BTN_TRIGGER_HAPPY1 | left top grip button
* 13.2 | BTN_TRIGGER_HAPPY2 | right top grip button
* 13.3 | -- | unknown
* 13.4 | -- | unknown
* 13.5 | -- | unknown
* 13.6 | -- | left joystick touched
* 13.7 | -- | right joystick touched
* 14.0 | -- | unknown
* 14.1 | -- | unknown
* 14.2 | BTN_BASE | quick access button
* 14.3 | -- | unknown
* 14.4 | -- | unknown
* 14.5 | -- | unknown
* 14.6 | -- | unknown
* 14.7 | -- | unknown
* 15.0 | -- | unknown
* 15.1 | -- | unknown
* 15.2 | -- | unknown
* 15.3 | -- | unknown
* 15.4 | -- | unknown
* 15.5 | -- | unknown
* 15.6 | -- | unknown
* 15.7 | -- | unknown
*/
static void steam_do_deck_input_event(struct steam_device *steam,
struct input_dev *input, u8 *data)
{
u8 b8, b9, b10, b11, b13, b14;
bool lpad_touched, rpad_touched;
b8 = data[8];
b9 = data[9];
b10 = data[10];
b11 = data[11];
b13 = data[13];
b14 = data[14];
lpad_touched = b10 & BIT(3);
rpad_touched = b10 & BIT(4);
if (lpad_touched) {
input_report_abs(input, ABS_HAT0X, steam_le16(data + 16));
input_report_abs(input, ABS_HAT0Y, steam_le16(data + 18));
} else {
input_report_abs(input, ABS_HAT0X, 0);
input_report_abs(input, ABS_HAT0Y, 0);
}
if (rpad_touched) {
input_report_abs(input, ABS_HAT1X, steam_le16(data + 20));
input_report_abs(input, ABS_HAT1Y, steam_le16(data + 22));
} else {
input_report_abs(input, ABS_HAT1X, 0);
input_report_abs(input, ABS_HAT1Y, 0);
}
input_report_abs(input, ABS_X, steam_le16(data + 48));
input_report_abs(input, ABS_Y, -steam_le16(data + 50));
input_report_abs(input, ABS_RX, steam_le16(data + 52));
input_report_abs(input, ABS_RY, -steam_le16(data + 54));
input_report_abs(input, ABS_HAT2Y, steam_le16(data + 44));
input_report_abs(input, ABS_HAT2X, steam_le16(data + 46));
input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0)));
input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1)));
input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2)));
input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3)));
input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4)));
input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5)));
input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6)));
input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7)));
input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4)));
input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5)));
input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6)));
input_event(input, EV_KEY, BTN_TRIGGER_HAPPY3, !!(b9 & BIT(7)));
input_event(input, EV_KEY, BTN_TRIGGER_HAPPY4, !!(b10 & BIT(0)));
input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6)));
input_event(input, EV_KEY, BTN_THUMBR, !!(b11 & BIT(2)));
input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0)));
input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1)));
input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2)));
input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3)));
input_event(input, EV_KEY, BTN_THUMB, !!(b10 & BIT(1)));
input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(2)));
input_event(input, EV_KEY, BTN_TRIGGER_HAPPY1, !!(b13 & BIT(1)));
input_event(input, EV_KEY, BTN_TRIGGER_HAPPY2, !!(b13 & BIT(2)));
input_event(input, EV_KEY, BTN_BASE, !!(b14 & BIT(2)));
input_sync(input);
}
/*
* The size for this message payload is 11.
* The known values are:
* Offset| Type | Meaning
* -------+-------+---------------------------
* 4-7 | u32 | sequence number
* 8-11 | -- | always 0
* 12-13 | u16 | voltage (mV)
* 14 | u8 | battery percent
*/
static void steam_do_battery_event(struct steam_device *steam,
struct power_supply *battery, u8 *data)
{
unsigned long flags;
s16 volts = steam_le16(data + 12);
u8 batt = data[14];
/* Creating the battery may have failed */
rcu_read_lock();
battery = rcu_dereference(steam->battery);
if (likely(battery)) {
spin_lock_irqsave(&steam->lock, flags);
steam->voltage = volts;
steam->battery_charge = batt;
spin_unlock_irqrestore(&steam->lock, flags);
power_supply_changed(battery);
}
rcu_read_unlock();
}
static int steam_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data,
int size)
{
struct steam_device *steam = hid_get_drvdata(hdev);
struct input_dev *input;
struct power_supply *battery;
if (!steam)
return 0;
if (steam->client_opened)
hid_input_report(steam->client_hdev, HID_FEATURE_REPORT,
data, size, 0);
/*
* All messages are size=64, all values little-endian.
* The format is:
* Offset| Meaning
* -------+--------------------------------------------
* 0-1 | always 0x01, 0x00, maybe protocol version?
* 2 | type of message
* 3 | length of the real payload (not checked)
* 4-n | payload data, depends on the type
*
* There are these known types of message:
* 0x01: input data (60 bytes)
* 0x03: wireless connect/disconnect (1 byte)
* 0x04: battery status (11 bytes)
* 0x09: Steam Deck input data (56 bytes)
*/
if (size != 64 || data[0] != 1 || data[1] != 0)
return 0;
switch (data[2]) {
case STEAM_EV_INPUT_DATA:
if (steam->client_opened)
return 0;
rcu_read_lock();
input = rcu_dereference(steam->input);
if (likely(input))
steam_do_input_event(steam, input, data);
rcu_read_unlock();
break;
case STEAM_EV_DECK_INPUT_DATA:
if (steam->client_opened)
return 0;
rcu_read_lock();
input = rcu_dereference(steam->input);
if (likely(input))
steam_do_deck_input_event(steam, input, data);
rcu_read_unlock();
break;
case STEAM_EV_CONNECT:
/*
* The payload of this event is a single byte:
* 0x01: disconnected.
* 0x02: connected.
*/
switch (data[4]) {
case 0x01:
steam_do_connect_event(steam, false);
break;
case 0x02:
steam_do_connect_event(steam, true);
break;
}
break;
case STEAM_EV_BATTERY:
if (steam->quirks & STEAM_QUIRK_WIRELESS) {
rcu_read_lock();
battery = rcu_dereference(steam->battery);
if (likely(battery)) {
steam_do_battery_event(steam, battery, data);
} else {
dbg_hid(
"%s: battery data without connect event\n",
__func__);
steam_do_connect_event(steam, true);
}
rcu_read_unlock();
}
break;
}
return 0;
}
static int steam_param_set_lizard_mode(const char *val,
const struct kernel_param *kp)
{
struct steam_device *steam;
int ret;
ret = param_set_bool(val, kp);
if (ret)
return ret;
mutex_lock(&steam_devices_lock);
list_for_each_entry(steam, &steam_devices, list) {
mutex_lock(&steam->mutex);
if (!steam->client_opened)
steam_set_lizard_mode(steam, lizard_mode);
mutex_unlock(&steam->mutex);
}
mutex_unlock(&steam_devices_lock);
return 0;
}
static const struct kernel_param_ops steam_lizard_mode_ops = {
.set = steam_param_set_lizard_mode,
.get = param_get_bool,
};
module_param_cb(lizard_mode, &steam_lizard_mode_ops, &lizard_mode, 0644);
MODULE_PARM_DESC(lizard_mode,
"Enable mouse and keyboard emulation (lizard mode) when the gamepad is not in use");
static const struct hid_device_id steam_controllers[] = {
{ /* Wired Steam Controller */
HID_USB_DEVICE(USB_VENDOR_ID_VALVE,
USB_DEVICE_ID_STEAM_CONTROLLER)
},
{ /* Wireless Steam Controller */
HID_USB_DEVICE(USB_VENDOR_ID_VALVE,
USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS),
.driver_data = STEAM_QUIRK_WIRELESS
},
{ /* Steam Deck */
HID_USB_DEVICE(USB_VENDOR_ID_VALVE,
USB_DEVICE_ID_STEAM_DECK),
.driver_data = STEAM_QUIRK_DECK
},
{}
};
MODULE_DEVICE_TABLE(hid, steam_controllers);
static struct hid_driver steam_controller_driver = {
.name = "hid-steam",
.id_table = steam_controllers,
.probe = steam_probe,
.remove = steam_remove,
.raw_event = steam_raw_event,
};
module_hid_driver(steam_controller_driver);
| linux-master | drivers/hid/hid-steam.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ION iCade input driver
*
* Copyright (c) 2012 Bastien Nocera <[email protected]>
* Copyright (c) 2012 Benjamin Tissoires <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* ↑ A C Y L
* ← →
* ↓ B X Z R
*
*
* UP ON,OFF = w,e
* RT ON,OFF = d,c
* DN ON,OFF = x,z
* LT ON,OFF = a,q
* A ON,OFF = y,t
* B ON,OFF = h,r
* C ON,OFF = u,f
* X ON,OFF = j,n
* Y ON,OFF = i,m
* Z ON,OFF = k,p
* L ON,OFF = o,g
* R ON,OFF = l,v
*/
/* The translation code uses HID usage instead of input layer
* keys. This code generates a lookup table that makes
* translation quick.
*
* #include <linux/input.h>
* #include <stdio.h>
* #include <assert.h>
*
* #define unk KEY_UNKNOWN
*
* < copy of hid_keyboard[] from hid-input.c >
*
* struct icade_key_translation {
* int from;
* const char *to;
* int press;
* };
*
* static const struct icade_key_translation icade_keys[] = {
* { KEY_W, "KEY_UP", 1 },
* { KEY_E, "KEY_UP", 0 },
* { KEY_D, "KEY_RIGHT", 1 },
* { KEY_C, "KEY_RIGHT", 0 },
* { KEY_X, "KEY_DOWN", 1 },
* { KEY_Z, "KEY_DOWN", 0 },
* { KEY_A, "KEY_LEFT", 1 },
* { KEY_Q, "KEY_LEFT", 0 },
* { KEY_Y, "BTN_A", 1 },
* { KEY_T, "BTN_A", 0 },
* { KEY_H, "BTN_B", 1 },
* { KEY_R, "BTN_B", 0 },
* { KEY_U, "BTN_C", 1 },
* { KEY_F, "BTN_C", 0 },
* { KEY_J, "BTN_X", 1 },
* { KEY_N, "BTN_X", 0 },
* { KEY_I, "BTN_Y", 1 },
* { KEY_M, "BTN_Y", 0 },
* { KEY_K, "BTN_Z", 1 },
* { KEY_P, "BTN_Z", 0 },
* { KEY_O, "BTN_THUMBL", 1 },
* { KEY_G, "BTN_THUMBL", 0 },
* { KEY_L, "BTN_THUMBR", 1 },
* { KEY_V, "BTN_THUMBR", 0 },
*
* { }
* };
*
* static int
* usage_for_key (int key)
* {
* int i;
* for (i = 0; i < 256; i++) {
* if (hid_keyboard[i] == key)
* return i;
* }
* assert(0);
* }
*
* int main (int argc, char **argv)
* {
* const struct icade_key_translation *trans;
* int max_usage = 0;
*
* for (trans = icade_keys; trans->from; trans++) {
* int usage = usage_for_key (trans->from);
* max_usage = usage > max_usage ? usage : max_usage;
* }
*
* printf ("#define ICADE_MAX_USAGE %d\n\n", max_usage);
* printf ("struct icade_key {\n");
* printf ("\tu16 to;\n");
* printf ("\tu8 press:1;\n");
* printf ("};\n\n");
* printf ("static const struct icade_key "
* "icade_usage_table[%d] = {\n", max_usage + 1);
* for (trans = icade_keys; trans->from; trans++) {
* printf ("\t[%d] = { %s, %d },\n",
* usage_for_key (trans->from), trans->to, trans->press);
* }
* printf ("};\n");
*
* return 0;
* }
*/
#define ICADE_MAX_USAGE 29
struct icade_key {
u16 to;
u8 press:1;
};
static const struct icade_key icade_usage_table[30] = {
[26] = { KEY_UP, 1 },
[8] = { KEY_UP, 0 },
[7] = { KEY_RIGHT, 1 },
[6] = { KEY_RIGHT, 0 },
[27] = { KEY_DOWN, 1 },
[29] = { KEY_DOWN, 0 },
[4] = { KEY_LEFT, 1 },
[20] = { KEY_LEFT, 0 },
[28] = { BTN_A, 1 },
[23] = { BTN_A, 0 },
[11] = { BTN_B, 1 },
[21] = { BTN_B, 0 },
[24] = { BTN_C, 1 },
[9] = { BTN_C, 0 },
[13] = { BTN_X, 1 },
[17] = { BTN_X, 0 },
[12] = { BTN_Y, 1 },
[16] = { BTN_Y, 0 },
[14] = { BTN_Z, 1 },
[19] = { BTN_Z, 0 },
[18] = { BTN_THUMBL, 1 },
[10] = { BTN_THUMBL, 0 },
[15] = { BTN_THUMBR, 1 },
[25] = { BTN_THUMBR, 0 },
};
static const struct icade_key *icade_find_translation(u16 from)
{
if (from > ICADE_MAX_USAGE)
return NULL;
return &icade_usage_table[from];
}
static int icade_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
const struct icade_key *trans;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
/* We ignore the fake key up, and act only on key down */
if (!value)
return 1;
trans = icade_find_translation(usage->hid & HID_USAGE);
if (!trans)
return 1;
input_event(field->hidinput->input, usage->type,
trans->to, trans->press);
return 1;
}
static int icade_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
const struct icade_key *trans;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_KEYBOARD) {
trans = icade_find_translation(usage->hid & HID_USAGE);
if (!trans)
return -1;
hid_map_usage(hi, usage, bit, max, EV_KEY, trans->to);
set_bit(trans->to, hi->input->keybit);
return 1;
}
/* ignore others */
return -1;
}
static int icade_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if (usage->type == EV_KEY)
set_bit(usage->type, hi->input->evbit);
return -1;
}
static const struct hid_device_id icade_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
{ }
};
MODULE_DEVICE_TABLE(hid, icade_devices);
static struct hid_driver icade_driver = {
.name = "icade",
.id_table = icade_devices,
.event = icade_event,
.input_mapped = icade_input_mapped,
.input_mapping = icade_input_mapping,
};
module_hid_driver(icade_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Bastien Nocera <[email protected]>");
MODULE_DESCRIPTION("ION iCade input driver");
| linux-master | drivers/hid/hid-icade.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Simple USB RGB LED driver
*
* Copyright 2016 Heiner Kallweit <[email protected]>
* Based on drivers/hid/hid-thingm.c and
* drivers/usb/misc/usbled.c
*/
#include <linux/hid.h>
#include <linux/hidraw.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include "hid-ids.h"
enum hidled_report_type {
RAW_REQUEST,
OUTPUT_REPORT
};
enum hidled_type {
RISO_KAGAKU,
DREAM_CHEEKY,
THINGM,
DELCOM,
LUXAFOR,
};
static unsigned const char riso_kagaku_tbl[] = {
/* R+2G+4B -> riso kagaku color index */
[0] = 0, /* black */
[1] = 2, /* red */
[2] = 1, /* green */
[3] = 5, /* yellow */
[4] = 3, /* blue */
[5] = 6, /* magenta */
[6] = 4, /* cyan */
[7] = 7 /* white */
};
#define RISO_KAGAKU_IX(r, g, b) riso_kagaku_tbl[((r)?1:0)+((g)?2:0)+((b)?4:0)]
union delcom_packet {
__u8 data[8];
struct {
__u8 major_cmd;
__u8 minor_cmd;
__u8 data_lsb;
__u8 data_msb;
} tx;
struct {
__u8 cmd;
} rx;
struct {
__le16 family_code;
__le16 security_code;
__u8 fw_version;
} fw;
};
#define DELCOM_GREEN_LED 0
#define DELCOM_RED_LED 1
#define DELCOM_BLUE_LED 2
struct hidled_device;
struct hidled_rgb;
struct hidled_config {
enum hidled_type type;
const char *name;
const char *short_name;
enum led_brightness max_brightness;
int num_leds;
size_t report_size;
enum hidled_report_type report_type;
int (*init)(struct hidled_device *ldev);
int (*write)(struct led_classdev *cdev, enum led_brightness br);
};
struct hidled_led {
struct led_classdev cdev;
struct hidled_rgb *rgb;
char name[32];
};
struct hidled_rgb {
struct hidled_device *ldev;
struct hidled_led red;
struct hidled_led green;
struct hidled_led blue;
u8 num;
};
struct hidled_device {
const struct hidled_config *config;
struct hid_device *hdev;
struct hidled_rgb *rgb;
u8 *buf;
struct mutex lock;
};
#define MAX_REPORT_SIZE 16
#define to_hidled_led(arg) container_of(arg, struct hidled_led, cdev)
static bool riso_kagaku_switch_green_blue;
module_param(riso_kagaku_switch_green_blue, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(riso_kagaku_switch_green_blue,
"switch green and blue RGB component for Riso Kagaku devices");
static int hidled_send(struct hidled_device *ldev, __u8 *buf)
{
int ret;
mutex_lock(&ldev->lock);
/*
* buffer provided to hid_hw_raw_request must not be on the stack
* and must not be part of a data structure
*/
memcpy(ldev->buf, buf, ldev->config->report_size);
if (ldev->config->report_type == RAW_REQUEST)
ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
else if (ldev->config->report_type == OUTPUT_REPORT)
ret = hid_hw_output_report(ldev->hdev, ldev->buf,
ldev->config->report_size);
else
ret = -EINVAL;
mutex_unlock(&ldev->lock);
if (ret < 0)
return ret;
return ret == ldev->config->report_size ? 0 : -EMSGSIZE;
}
/* reading data is supported for report type RAW_REQUEST only */
static int hidled_recv(struct hidled_device *ldev, __u8 *buf)
{
int ret;
if (ldev->config->report_type != RAW_REQUEST)
return -EINVAL;
mutex_lock(&ldev->lock);
memcpy(ldev->buf, buf, ldev->config->report_size);
ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret < 0)
goto err;
ret = hid_hw_raw_request(ldev->hdev, buf[0], ldev->buf,
ldev->config->report_size,
HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
memcpy(buf, ldev->buf, ldev->config->report_size);
err:
mutex_unlock(&ldev->lock);
return ret < 0 ? ret : 0;
}
static u8 riso_kagaku_index(struct hidled_rgb *rgb)
{
enum led_brightness r, g, b;
r = rgb->red.cdev.brightness;
g = rgb->green.cdev.brightness;
b = rgb->blue.cdev.brightness;
if (riso_kagaku_switch_green_blue)
return RISO_KAGAKU_IX(r, b, g);
else
return RISO_KAGAKU_IX(r, g, b);
}
static int riso_kagaku_write(struct led_classdev *cdev, enum led_brightness br)
{
struct hidled_led *led = to_hidled_led(cdev);
struct hidled_rgb *rgb = led->rgb;
__u8 buf[MAX_REPORT_SIZE] = {};
buf[1] = riso_kagaku_index(rgb);
return hidled_send(rgb->ldev, buf);
}
static int dream_cheeky_write(struct led_classdev *cdev, enum led_brightness br)
{
struct hidled_led *led = to_hidled_led(cdev);
struct hidled_rgb *rgb = led->rgb;
__u8 buf[MAX_REPORT_SIZE] = {};
buf[1] = rgb->red.cdev.brightness;
buf[2] = rgb->green.cdev.brightness;
buf[3] = rgb->blue.cdev.brightness;
buf[7] = 0x1a;
buf[8] = 0x05;
return hidled_send(rgb->ldev, buf);
}
static int dream_cheeky_init(struct hidled_device *ldev)
{
__u8 buf[MAX_REPORT_SIZE] = {};
/* Dream Cheeky magic */
buf[1] = 0x1f;
buf[2] = 0x02;
buf[4] = 0x5f;
buf[7] = 0x1a;
buf[8] = 0x03;
return hidled_send(ldev, buf);
}
static int _thingm_write(struct led_classdev *cdev, enum led_brightness br,
u8 offset)
{
struct hidled_led *led = to_hidled_led(cdev);
__u8 buf[MAX_REPORT_SIZE] = { 1, 'c' };
buf[2] = led->rgb->red.cdev.brightness;
buf[3] = led->rgb->green.cdev.brightness;
buf[4] = led->rgb->blue.cdev.brightness;
buf[7] = led->rgb->num + offset;
return hidled_send(led->rgb->ldev, buf);
}
static int thingm_write_v1(struct led_classdev *cdev, enum led_brightness br)
{
return _thingm_write(cdev, br, 0);
}
static int thingm_write(struct led_classdev *cdev, enum led_brightness br)
{
return _thingm_write(cdev, br, 1);
}
static const struct hidled_config hidled_config_thingm_v1 = {
.name = "ThingM blink(1) v1",
.short_name = "thingm",
.max_brightness = 255,
.num_leds = 1,
.report_size = 9,
.report_type = RAW_REQUEST,
.write = thingm_write_v1,
};
static int thingm_init(struct hidled_device *ldev)
{
__u8 buf[MAX_REPORT_SIZE] = { 1, 'v' };
int ret;
ret = hidled_recv(ldev, buf);
if (ret)
return ret;
/* Check for firmware major version 1 */
if (buf[3] == '1')
ldev->config = &hidled_config_thingm_v1;
return 0;
}
static inline int delcom_get_lednum(const struct hidled_led *led)
{
if (led == &led->rgb->red)
return DELCOM_RED_LED;
else if (led == &led->rgb->green)
return DELCOM_GREEN_LED;
else
return DELCOM_BLUE_LED;
}
static int delcom_enable_led(struct hidled_led *led)
{
union delcom_packet dp = { .tx.major_cmd = 101, .tx.minor_cmd = 12 };
dp.tx.data_lsb = 1 << delcom_get_lednum(led);
dp.tx.data_msb = 0;
return hidled_send(led->rgb->ldev, dp.data);
}
static int delcom_set_pwm(struct hidled_led *led)
{
union delcom_packet dp = { .tx.major_cmd = 101, .tx.minor_cmd = 34 };
dp.tx.data_lsb = delcom_get_lednum(led);
dp.tx.data_msb = led->cdev.brightness;
return hidled_send(led->rgb->ldev, dp.data);
}
static int delcom_write(struct led_classdev *cdev, enum led_brightness br)
{
struct hidled_led *led = to_hidled_led(cdev);
int ret;
/*
* enable LED
* We can't do this in the init function already because the device
* is internally reset later.
*/
ret = delcom_enable_led(led);
if (ret)
return ret;
return delcom_set_pwm(led);
}
static int delcom_init(struct hidled_device *ldev)
{
union delcom_packet dp = { .rx.cmd = 104 };
int ret;
ret = hidled_recv(ldev, dp.data);
if (ret)
return ret;
/*
* Several Delcom devices share the same USB VID/PID
* Check for family id 2 for Visual Signal Indicator
*/
return le16_to_cpu(dp.fw.family_code) == 2 ? 0 : -ENODEV;
}
static int luxafor_write(struct led_classdev *cdev, enum led_brightness br)
{
struct hidled_led *led = to_hidled_led(cdev);
__u8 buf[MAX_REPORT_SIZE] = { [1] = 1 };
buf[2] = led->rgb->num + 1;
buf[3] = led->rgb->red.cdev.brightness;
buf[4] = led->rgb->green.cdev.brightness;
buf[5] = led->rgb->blue.cdev.brightness;
return hidled_send(led->rgb->ldev, buf);
}
static const struct hidled_config hidled_configs[] = {
{
.type = RISO_KAGAKU,
.name = "Riso Kagaku Webmail Notifier",
.short_name = "riso_kagaku",
.max_brightness = 1,
.num_leds = 1,
.report_size = 6,
.report_type = OUTPUT_REPORT,
.write = riso_kagaku_write,
},
{
.type = DREAM_CHEEKY,
.name = "Dream Cheeky Webmail Notifier",
.short_name = "dream_cheeky",
.max_brightness = 63,
.num_leds = 1,
.report_size = 9,
.report_type = RAW_REQUEST,
.init = dream_cheeky_init,
.write = dream_cheeky_write,
},
{
.type = THINGM,
.name = "ThingM blink(1)",
.short_name = "thingm",
.max_brightness = 255,
.num_leds = 2,
.report_size = 9,
.report_type = RAW_REQUEST,
.init = thingm_init,
.write = thingm_write,
},
{
.type = DELCOM,
.name = "Delcom Visual Signal Indicator G2",
.short_name = "delcom",
.max_brightness = 100,
.num_leds = 1,
.report_size = 8,
.report_type = RAW_REQUEST,
.init = delcom_init,
.write = delcom_write,
},
{
.type = LUXAFOR,
.name = "Greynut Luxafor",
.short_name = "luxafor",
.max_brightness = 255,
.num_leds = 6,
.report_size = 9,
.report_type = OUTPUT_REPORT,
.write = luxafor_write,
},
};
static int hidled_init_led(struct hidled_led *led, const char *color_name,
struct hidled_rgb *rgb, unsigned int minor)
{
const struct hidled_config *config = rgb->ldev->config;
if (config->num_leds > 1)
snprintf(led->name, sizeof(led->name), "%s%u:%s:led%u",
config->short_name, minor, color_name, rgb->num);
else
snprintf(led->name, sizeof(led->name), "%s%u:%s",
config->short_name, minor, color_name);
led->cdev.name = led->name;
led->cdev.max_brightness = config->max_brightness;
led->cdev.brightness_set_blocking = config->write;
led->cdev.flags = LED_HW_PLUGGABLE;
led->rgb = rgb;
return devm_led_classdev_register(&rgb->ldev->hdev->dev, &led->cdev);
}
static int hidled_init_rgb(struct hidled_rgb *rgb, unsigned int minor)
{
int ret;
/* Register the red diode */
ret = hidled_init_led(&rgb->red, "red", rgb, minor);
if (ret)
return ret;
/* Register the green diode */
ret = hidled_init_led(&rgb->green, "green", rgb, minor);
if (ret)
return ret;
/* Register the blue diode */
return hidled_init_led(&rgb->blue, "blue", rgb, minor);
}
static int hidled_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct hidled_device *ldev;
unsigned int minor;
int ret, i;
ldev = devm_kzalloc(&hdev->dev, sizeof(*ldev), GFP_KERNEL);
if (!ldev)
return -ENOMEM;
ldev->buf = devm_kmalloc(&hdev->dev, MAX_REPORT_SIZE, GFP_KERNEL);
if (!ldev->buf)
return -ENOMEM;
ret = hid_parse(hdev);
if (ret)
return ret;
ldev->hdev = hdev;
mutex_init(&ldev->lock);
for (i = 0; !ldev->config && i < ARRAY_SIZE(hidled_configs); i++)
if (hidled_configs[i].type == id->driver_data)
ldev->config = &hidled_configs[i];
if (!ldev->config)
return -EINVAL;
if (ldev->config->init) {
ret = ldev->config->init(ldev);
if (ret)
return ret;
}
ldev->rgb = devm_kcalloc(&hdev->dev, ldev->config->num_leds,
sizeof(struct hidled_rgb), GFP_KERNEL);
if (!ldev->rgb)
return -ENOMEM;
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret)
return ret;
minor = ((struct hidraw *) hdev->hidraw)->minor;
for (i = 0; i < ldev->config->num_leds; i++) {
ldev->rgb[i].ldev = ldev;
ldev->rgb[i].num = i;
ret = hidled_init_rgb(&ldev->rgb[i], minor);
if (ret) {
hid_hw_stop(hdev);
return ret;
}
}
hid_info(hdev, "%s initialized\n", ldev->config->name);
return 0;
}
static const struct hid_device_id hidled_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU,
USB_DEVICE_ID_RI_KA_WEBMAIL), .driver_data = RISO_KAGAKU },
{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY,
USB_DEVICE_ID_DREAM_CHEEKY_WN), .driver_data = DREAM_CHEEKY },
{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY,
USB_DEVICE_ID_DREAM_CHEEKY_FA), .driver_data = DREAM_CHEEKY },
{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM,
USB_DEVICE_ID_BLINK1), .driver_data = THINGM },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELCOM,
USB_DEVICE_ID_DELCOM_VISUAL_IND), .driver_data = DELCOM },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP,
USB_DEVICE_ID_LUXAFOR), .driver_data = LUXAFOR },
{ }
};
MODULE_DEVICE_TABLE(hid, hidled_table);
static struct hid_driver hidled_driver = {
.name = "hid-led",
.probe = hidled_probe,
.id_table = hidled_table,
};
module_hid_driver(hidled_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Heiner Kallweit <[email protected]>");
MODULE_DESCRIPTION("Simple USB RGB LED driver");
| linux-master | drivers/hid/hid-led.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2013 Andrew Duggan <[email protected]>
* Copyright (c) 2013 Synaptics Incorporated
* Copyright (c) 2014 Benjamin Tissoires <[email protected]>
* Copyright (c) 2014 Red Hat, Inc
*/
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <linux/rmi.h>
#include "hid-ids.h"
#define RMI_MOUSE_REPORT_ID 0x01 /* Mouse emulation Report */
#define RMI_WRITE_REPORT_ID 0x09 /* Output Report */
#define RMI_READ_ADDR_REPORT_ID 0x0a /* Output Report */
#define RMI_READ_DATA_REPORT_ID 0x0b /* Input Report */
#define RMI_ATTN_REPORT_ID 0x0c /* Input Report */
#define RMI_SET_RMI_MODE_REPORT_ID 0x0f /* Feature Report */
/* flags */
#define RMI_READ_REQUEST_PENDING 0
#define RMI_READ_DATA_PENDING 1
#define RMI_STARTED 2
/* device flags */
#define RMI_DEVICE BIT(0)
#define RMI_DEVICE_HAS_PHYS_BUTTONS BIT(1)
#define RMI_DEVICE_OUTPUT_SET_REPORT BIT(2)
/*
* retrieve the ctrl registers
* the ctrl register has a size of 20 but a fw bug split it into 16 + 4,
* and there is no way to know if the first 20 bytes are here or not.
* We use only the first 12 bytes, so get only them.
*/
#define RMI_F11_CTRL_REG_COUNT 12
enum rmi_mode_type {
RMI_MODE_OFF = 0,
RMI_MODE_ATTN_REPORTS = 1,
RMI_MODE_NO_PACKED_ATTN_REPORTS = 2,
};
/**
* struct rmi_data - stores information for hid communication
*
* @page_mutex: Locks current page to avoid changing pages in unexpected ways.
* @page: Keeps track of the current virtual page
* @xport: transport device to be registered with the RMI4 core.
*
* @wait: Used for waiting for read data
*
* @writeReport: output buffer when writing RMI registers
* @readReport: input buffer when reading RMI registers
*
* @input_report_size: size of an input report (advertised by HID)
* @output_report_size: size of an output report (advertised by HID)
*
* @flags: flags for the current device (started, reading, etc...)
*
* @reset_work: worker which will be called in case of a mouse report
* @hdev: pointer to the struct hid_device
*
* @device_flags: flags which describe the device
*
* @domain: the IRQ domain allocated for this RMI4 device
* @rmi_irq: the irq that will be used to generate events to rmi-core
*/
struct rmi_data {
struct mutex page_mutex;
int page;
struct rmi_transport_dev xport;
wait_queue_head_t wait;
u8 *writeReport;
u8 *readReport;
u32 input_report_size;
u32 output_report_size;
unsigned long flags;
struct work_struct reset_work;
struct hid_device *hdev;
unsigned long device_flags;
struct irq_domain *domain;
int rmi_irq;
};
#define RMI_PAGE(addr) (((addr) >> 8) & 0xff)
static int rmi_write_report(struct hid_device *hdev, u8 *report, int len);
/**
* rmi_set_page - Set RMI page
* @hdev: The pointer to the hid_device struct
* @page: The new page address.
*
* RMI devices have 16-bit addressing, but some of the physical
* implementations (like SMBus) only have 8-bit addressing. So RMI implements
* a page address at 0xff of every page so we can reliable page addresses
* every 256 registers.
*
* The page_mutex lock must be held when this function is entered.
*
* Returns zero on success, non-zero on failure.
*/
static int rmi_set_page(struct hid_device *hdev, u8 page)
{
struct rmi_data *data = hid_get_drvdata(hdev);
int retval;
data->writeReport[0] = RMI_WRITE_REPORT_ID;
data->writeReport[1] = 1;
data->writeReport[2] = 0xFF;
data->writeReport[4] = page;
retval = rmi_write_report(hdev, data->writeReport,
data->output_report_size);
if (retval != data->output_report_size) {
dev_err(&hdev->dev,
"%s: set page failed: %d.", __func__, retval);
return retval;
}
data->page = page;
return 0;
}
static int rmi_set_mode(struct hid_device *hdev, u8 mode)
{
int ret;
const u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode};
u8 *buf;
buf = kmemdup(txbuf, sizeof(txbuf), GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, buf,
sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(buf);
if (ret < 0) {
dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode,
ret);
return ret;
}
return 0;
}
static int rmi_write_report(struct hid_device *hdev, u8 *report, int len)
{
struct rmi_data *data = hid_get_drvdata(hdev);
int ret;
if (data->device_flags & RMI_DEVICE_OUTPUT_SET_REPORT) {
/*
* Talk to device by using SET_REPORT requests instead.
*/
ret = hid_hw_raw_request(hdev, report[0], report,
len, HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
} else {
ret = hid_hw_output_report(hdev, (void *)report, len);
}
if (ret < 0) {
dev_err(&hdev->dev, "failed to write hid report (%d)\n", ret);
return ret;
}
return ret;
}
static int rmi_hid_read_block(struct rmi_transport_dev *xport, u16 addr,
void *buf, size_t len)
{
struct rmi_data *data = container_of(xport, struct rmi_data, xport);
struct hid_device *hdev = data->hdev;
int ret;
int bytes_read;
int bytes_needed;
int retries;
int read_input_count;
mutex_lock(&data->page_mutex);
if (RMI_PAGE(addr) != data->page) {
ret = rmi_set_page(hdev, RMI_PAGE(addr));
if (ret < 0)
goto exit;
}
for (retries = 5; retries > 0; retries--) {
data->writeReport[0] = RMI_READ_ADDR_REPORT_ID;
data->writeReport[1] = 0; /* old 1 byte read count */
data->writeReport[2] = addr & 0xFF;
data->writeReport[3] = (addr >> 8) & 0xFF;
data->writeReport[4] = len & 0xFF;
data->writeReport[5] = (len >> 8) & 0xFF;
set_bit(RMI_READ_REQUEST_PENDING, &data->flags);
ret = rmi_write_report(hdev, data->writeReport,
data->output_report_size);
if (ret != data->output_report_size) {
dev_err(&hdev->dev,
"failed to write request output report (%d)\n",
ret);
goto exit;
}
bytes_read = 0;
bytes_needed = len;
while (bytes_read < len) {
if (!wait_event_timeout(data->wait,
test_bit(RMI_READ_DATA_PENDING, &data->flags),
msecs_to_jiffies(1000))) {
hid_warn(hdev, "%s: timeout elapsed\n",
__func__);
ret = -EAGAIN;
break;
}
read_input_count = data->readReport[1];
memcpy(buf + bytes_read, &data->readReport[2],
min(read_input_count, bytes_needed));
bytes_read += read_input_count;
bytes_needed -= read_input_count;
clear_bit(RMI_READ_DATA_PENDING, &data->flags);
}
if (ret >= 0) {
ret = 0;
break;
}
}
exit:
clear_bit(RMI_READ_REQUEST_PENDING, &data->flags);
mutex_unlock(&data->page_mutex);
return ret;
}
static int rmi_hid_write_block(struct rmi_transport_dev *xport, u16 addr,
const void *buf, size_t len)
{
struct rmi_data *data = container_of(xport, struct rmi_data, xport);
struct hid_device *hdev = data->hdev;
int ret;
mutex_lock(&data->page_mutex);
if (RMI_PAGE(addr) != data->page) {
ret = rmi_set_page(hdev, RMI_PAGE(addr));
if (ret < 0)
goto exit;
}
data->writeReport[0] = RMI_WRITE_REPORT_ID;
data->writeReport[1] = len;
data->writeReport[2] = addr & 0xFF;
data->writeReport[3] = (addr >> 8) & 0xFF;
memcpy(&data->writeReport[4], buf, len);
ret = rmi_write_report(hdev, data->writeReport,
data->output_report_size);
if (ret < 0) {
dev_err(&hdev->dev,
"failed to write request output report (%d)\n",
ret);
goto exit;
}
ret = 0;
exit:
mutex_unlock(&data->page_mutex);
return ret;
}
static int rmi_reset_attn_mode(struct hid_device *hdev)
{
struct rmi_data *data = hid_get_drvdata(hdev);
struct rmi_device *rmi_dev = data->xport.rmi_dev;
int ret;
ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS);
if (ret)
return ret;
if (test_bit(RMI_STARTED, &data->flags))
ret = rmi_dev->driver->reset_handler(rmi_dev);
return ret;
}
static void rmi_reset_work(struct work_struct *work)
{
struct rmi_data *hdata = container_of(work, struct rmi_data,
reset_work);
/* switch the device to RMI if we receive a generic mouse report */
rmi_reset_attn_mode(hdata->hdev);
}
static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
struct rmi_device *rmi_dev = hdata->xport.rmi_dev;
unsigned long flags;
if (!(test_bit(RMI_STARTED, &hdata->flags)))
return 0;
pm_wakeup_event(hdev->dev.parent, 0);
local_irq_save(flags);
rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2);
generic_handle_irq(hdata->rmi_irq);
local_irq_restore(flags);
return 1;
}
static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
hid_dbg(hdev, "no read request pending\n");
return 0;
}
memcpy(hdata->readReport, data, min((u32)size, hdata->input_report_size));
set_bit(RMI_READ_DATA_PENDING, &hdata->flags);
wake_up(&hdata->wait);
return 1;
}
static int rmi_check_sanity(struct hid_device *hdev, u8 *data, int size)
{
int valid_size = size;
/*
* On the Dell XPS 13 9333, the bus sometimes get confused and fills
* the report with a sentinel value "ff". Synaptics told us that such
* behavior does not comes from the touchpad itself, so we filter out
* such reports here.
*/
while ((data[valid_size - 1] == 0xff) && valid_size > 0)
valid_size--;
return valid_size;
}
static int rmi_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
if (!(hdata->device_flags & RMI_DEVICE))
return 0;
size = rmi_check_sanity(hdev, data, size);
if (size < 2)
return 0;
switch (data[0]) {
case RMI_READ_DATA_REPORT_ID:
return rmi_read_data_event(hdev, data, size);
case RMI_ATTN_REPORT_ID:
return rmi_input_event(hdev, data, size);
default:
return 1;
}
return 0;
}
static int rmi_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct rmi_data *data = hid_get_drvdata(hdev);
if ((data->device_flags & RMI_DEVICE) &&
(field->application == HID_GD_POINTER ||
field->application == HID_GD_MOUSE)) {
if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) {
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
return 0;
if ((usage->hid == HID_GD_X || usage->hid == HID_GD_Y)
&& !value)
return 1;
}
schedule_work(&data->reset_work);
return 1;
}
return 0;
}
static void rmi_report(struct hid_device *hid, struct hid_report *report)
{
struct hid_field *field = report->field[0];
if (!(hid->claimed & HID_CLAIMED_INPUT))
return;
switch (report->id) {
case RMI_READ_DATA_REPORT_ID:
case RMI_ATTN_REPORT_ID:
return;
}
if (field && field->hidinput && field->hidinput->input)
input_sync(field->hidinput->input);
}
#ifdef CONFIG_PM
static int rmi_suspend(struct hid_device *hdev, pm_message_t message)
{
struct rmi_data *data = hid_get_drvdata(hdev);
struct rmi_device *rmi_dev = data->xport.rmi_dev;
int ret;
if (!(data->device_flags & RMI_DEVICE))
return 0;
ret = rmi_driver_suspend(rmi_dev, false);
if (ret) {
hid_warn(hdev, "Failed to suspend device: %d\n", ret);
return ret;
}
return 0;
}
static int rmi_post_resume(struct hid_device *hdev)
{
struct rmi_data *data = hid_get_drvdata(hdev);
struct rmi_device *rmi_dev = data->xport.rmi_dev;
int ret;
if (!(data->device_flags & RMI_DEVICE))
return 0;
/* Make sure the HID device is ready to receive events */
ret = hid_hw_open(hdev);
if (ret)
return ret;
ret = rmi_reset_attn_mode(hdev);
if (ret)
goto out;
ret = rmi_driver_resume(rmi_dev, false);
if (ret) {
hid_warn(hdev, "Failed to resume device: %d\n", ret);
goto out;
}
out:
hid_hw_close(hdev);
return ret;
}
#endif /* CONFIG_PM */
static int rmi_hid_reset(struct rmi_transport_dev *xport, u16 reset_addr)
{
struct rmi_data *data = container_of(xport, struct rmi_data, xport);
struct hid_device *hdev = data->hdev;
return rmi_reset_attn_mode(hdev);
}
static int rmi_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct rmi_data *data = hid_get_drvdata(hdev);
struct input_dev *input = hi->input;
int ret = 0;
if (!(data->device_flags & RMI_DEVICE))
return 0;
data->xport.input = input;
hid_dbg(hdev, "Opening low level driver\n");
ret = hid_hw_open(hdev);
if (ret)
return ret;
/* Allow incoming hid reports */
hid_device_io_start(hdev);
ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS);
if (ret < 0) {
dev_err(&hdev->dev, "failed to set rmi mode\n");
goto exit;
}
ret = rmi_set_page(hdev, 0);
if (ret < 0) {
dev_err(&hdev->dev, "failed to set page select to 0.\n");
goto exit;
}
ret = rmi_register_transport_device(&data->xport);
if (ret < 0) {
dev_err(&hdev->dev, "failed to register transport driver\n");
goto exit;
}
set_bit(RMI_STARTED, &data->flags);
exit:
hid_device_io_stop(hdev);
hid_hw_close(hdev);
return ret;
}
static int rmi_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
struct rmi_data *data = hid_get_drvdata(hdev);
/*
* we want to make HID ignore the advertised HID collection
* for RMI deivces
*/
if (data->device_flags & RMI_DEVICE) {
if ((data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) &&
((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON))
return 0;
return -1;
}
return 0;
}
static int rmi_check_valid_report_id(struct hid_device *hdev, unsigned type,
unsigned id, struct hid_report **report)
{
int i;
*report = hdev->report_enum[type].report_id_hash[id];
if (*report) {
for (i = 0; i < (*report)->maxfield; i++) {
unsigned app = (*report)->field[i]->application;
if ((app & HID_USAGE_PAGE) >= HID_UP_MSVENDOR)
return 1;
}
}
return 0;
}
static struct rmi_device_platform_data rmi_hid_pdata = {
.sensor_pdata = {
.sensor_type = rmi_sensor_touchpad,
.axis_align.flip_y = true,
.dribble = RMI_REG_STATE_ON,
.palm_detect = RMI_REG_STATE_OFF,
},
};
static const struct rmi_transport_ops hid_rmi_ops = {
.write_block = rmi_hid_write_block,
.read_block = rmi_hid_read_block,
.reset = rmi_hid_reset,
};
static void rmi_irq_teardown(void *data)
{
struct rmi_data *hdata = data;
struct irq_domain *domain = hdata->domain;
if (!domain)
return;
irq_dispose_mapping(irq_find_mapping(domain, 0));
irq_domain_remove(domain);
hdata->domain = NULL;
hdata->rmi_irq = 0;
}
static int rmi_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw_irq_num)
{
irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq);
return 0;
}
static const struct irq_domain_ops rmi_irq_ops = {
.map = rmi_irq_map,
};
static int rmi_setup_irq_domain(struct hid_device *hdev)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
int ret;
hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1,
&rmi_irq_ops, hdata);
if (!hdata->domain)
return -ENOMEM;
ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata);
if (ret)
return ret;
hdata->rmi_irq = irq_create_mapping(hdata->domain, 0);
if (hdata->rmi_irq <= 0) {
hid_err(hdev, "Can't allocate an IRQ\n");
return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO;
}
return 0;
}
static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct rmi_data *data = NULL;
int ret;
size_t alloc_size;
struct hid_report *input_report;
struct hid_report *output_report;
struct hid_report *feature_report;
data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
INIT_WORK(&data->reset_work, rmi_reset_work);
data->hdev = hdev;
hid_set_drvdata(hdev, data);
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
if (id->driver_data)
data->device_flags = id->driver_data;
/*
* Check for the RMI specific report ids. If they are misisng
* simply return and let the events be processed by hid-input
*/
if (!rmi_check_valid_report_id(hdev, HID_FEATURE_REPORT,
RMI_SET_RMI_MODE_REPORT_ID, &feature_report)) {
hid_dbg(hdev, "device does not have set mode feature report\n");
goto start;
}
if (!rmi_check_valid_report_id(hdev, HID_INPUT_REPORT,
RMI_ATTN_REPORT_ID, &input_report)) {
hid_dbg(hdev, "device does not have attention input report\n");
goto start;
}
data->input_report_size = hid_report_len(input_report);
if (!rmi_check_valid_report_id(hdev, HID_OUTPUT_REPORT,
RMI_WRITE_REPORT_ID, &output_report)) {
hid_dbg(hdev,
"device does not have rmi write output report\n");
goto start;
}
data->output_report_size = hid_report_len(output_report);
data->device_flags |= RMI_DEVICE;
alloc_size = data->output_report_size + data->input_report_size;
data->writeReport = devm_kzalloc(&hdev->dev, alloc_size, GFP_KERNEL);
if (!data->writeReport) {
hid_err(hdev, "failed to allocate buffer for HID reports\n");
return -ENOMEM;
}
data->readReport = data->writeReport + data->output_report_size;
init_waitqueue_head(&data->wait);
mutex_init(&data->page_mutex);
ret = rmi_setup_irq_domain(hdev);
if (ret) {
hid_err(hdev, "failed to allocate IRQ domain\n");
return ret;
}
if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
rmi_hid_pdata.gpio_data.disable = true;
data->xport.dev = hdev->dev.parent;
data->xport.pdata = rmi_hid_pdata;
data->xport.pdata.irq = data->rmi_irq;
data->xport.proto_name = "hid";
data->xport.ops = &hid_rmi_ops;
start:
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static void rmi_remove(struct hid_device *hdev)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
if ((hdata->device_flags & RMI_DEVICE)
&& test_bit(RMI_STARTED, &hdata->flags)) {
clear_bit(RMI_STARTED, &hdata->flags);
cancel_work_sync(&hdata->reset_work);
rmi_unregister_transport_device(&hdata->xport);
}
hid_hw_stop(hdev);
}
static const struct hid_device_id rmi_id[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14),
.driver_data = RMI_DEVICE_HAS_PHYS_BUTTONS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_COVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_REZEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5),
.driver_data = RMI_DEVICE_OUTPUT_SET_REPORT },
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, rmi_id);
static struct hid_driver rmi_driver = {
.name = "hid-rmi",
.id_table = rmi_id,
.probe = rmi_probe,
.remove = rmi_remove,
.event = rmi_event,
.raw_event = rmi_raw_event,
.report = rmi_report,
.input_mapping = rmi_input_mapping,
.input_configured = rmi_input_configured,
#ifdef CONFIG_PM
.suspend = rmi_suspend,
.resume = rmi_post_resume,
.reset_resume = rmi_post_resume,
#endif
};
module_hid_driver(rmi_driver);
MODULE_AUTHOR("Andrew Duggan <[email protected]>");
MODULE_DESCRIPTION("RMI HID driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-rmi.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB HID driver for Glorious PC Gaming Race
* Glorious Model O, O- and D mice.
*
* Copyright (c) 2020 Samuel Čavoj <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Samuel Čavoj <[email protected]>");
MODULE_DESCRIPTION("HID driver for Glorious PC Gaming Race mice");
/*
* Glorious Model O and O- specify the const flag in the consumer input
* report descriptor, which leads to inputs being ignored. Fix this
* by patching the descriptor.
*/
static __u8 *glorious_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == 213 &&
rdesc[84] == 129 && rdesc[112] == 129 && rdesc[140] == 129 &&
rdesc[85] == 3 && rdesc[113] == 3 && rdesc[141] == 3) {
hid_info(hdev, "patching Glorious Model O consumer control report descriptor\n");
rdesc[85] = rdesc[113] = rdesc[141] = \
HID_MAIN_ITEM_VARIABLE | HID_MAIN_ITEM_RELATIVE;
}
return rdesc;
}
static void glorious_update_name(struct hid_device *hdev)
{
const char *model = "Device";
switch (hdev->product) {
case USB_DEVICE_ID_GLORIOUS_MODEL_O:
model = "Model O"; break;
case USB_DEVICE_ID_GLORIOUS_MODEL_D:
model = "Model D"; break;
}
snprintf(hdev->name, sizeof(hdev->name), "%s %s", "Glorious", model);
}
static int glorious_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret)
return ret;
glorious_update_name(hdev);
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
static const struct hid_device_id glorious_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GLORIOUS,
USB_DEVICE_ID_GLORIOUS_MODEL_O) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GLORIOUS,
USB_DEVICE_ID_GLORIOUS_MODEL_D) },
{ }
};
MODULE_DEVICE_TABLE(hid, glorious_devices);
static struct hid_driver glorious_driver = {
.name = "glorious",
.id_table = glorious_devices,
.probe = glorious_probe,
.report_fixup = glorious_report_fixup
};
module_hid_driver(glorious_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-glorious.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some chicony "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2007 Paul Walmsley
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define CH_WIRELESS_CTL_REPORT_ID 0x11
static int ch_report_wireless(struct hid_report *report, u8 *data, int size)
{
struct hid_device *hdev = report->device;
struct input_dev *input;
if (report->id != CH_WIRELESS_CTL_REPORT_ID || report->maxfield != 1)
return 0;
input = report->field[0]->hidinput->input;
if (!input) {
hid_warn(hdev, "can't find wireless radio control's input");
return 0;
}
input_report_key(input, KEY_RFKILL, 1);
input_sync(input);
input_report_key(input, KEY_RFKILL, 0);
input_sync(input);
return 1;
}
static int ch_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
if (report->application == HID_GD_WIRELESS_RADIO_CTLS)
return ch_report_wireless(report, data, size);
return 0;
}
#define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xff01: ch_map_key_clear(BTN_1); break;
case 0xff02: ch_map_key_clear(BTN_2); break;
case 0xff03: ch_map_key_clear(BTN_3); break;
case 0xff04: ch_map_key_clear(BTN_4); break;
case 0xff05: ch_map_key_clear(BTN_5); break;
case 0xff06: ch_map_key_clear(BTN_6); break;
case 0xff07: ch_map_key_clear(BTN_7); break;
case 0xff08: ch_map_key_clear(BTN_8); break;
case 0xff09: ch_map_key_clear(BTN_9); break;
case 0xff0a: ch_map_key_clear(BTN_A); break;
case 0xff0b: ch_map_key_clear(BTN_B); break;
case 0x00f1: ch_map_key_clear(KEY_WLAN); break;
case 0x00f2: ch_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x00f3: ch_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x00f4: ch_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x00f7: ch_map_key_clear(KEY_CAMERA); break;
case 0x00f8: ch_map_key_clear(KEY_PROG1); break;
default:
return 0;
}
return 1;
}
static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
/* Change usage maximum and logical maximum from 0x7fff to
* 0x2fff, so they don't exceed HID_MAX_USAGES */
switch (hdev->product) {
case USB_DEVICE_ID_CHICONY_ACER_SWITCH12:
if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f
&& rdesc[69] == 0xff && rdesc[70] == 0x7f) {
hid_info(hdev, "Fixing up report descriptor\n");
rdesc[65] = rdesc[70] = 0x2f;
}
break;
}
}
return rdesc;
}
static int ch_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Chicony hid parse failed: %d\n", ret);
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Chicony hw start failed: %d\n", ret);
return ret;
}
return 0;
}
static const struct hid_device_id ch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
{ }
};
MODULE_DEVICE_TABLE(hid, ch_devices);
static struct hid_driver ch_driver = {
.name = "chicony",
.id_table = ch_devices,
.report_fixup = ch_switch12_report_fixup,
.input_mapping = ch_input_mapping,
.probe = ch_probe,
.raw_event = ch_raw_event,
};
module_hid_driver(ch_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-chicony.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for hid-compliant for some of the devices from
* Logitech, namely:
* - WingMan Cordless RumblePad
* - WingMan Force 3D
*
* Copyright (c) 2002-2004 Johann Deneux
* Copyright (c) 2006 Anssi Hannula <[email protected]>
*/
/*
*
* Should you need to contact me, the author, you can do so by
* e-mail - mail your message to <[email protected]>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/input.h>
#include <linux/hid.h>
#include "hid-lg.h"
struct dev_type {
u16 idVendor;
u16 idProduct;
const signed short *ff;
};
static const signed short ff_rumble[] = {
FF_RUMBLE,
-1
};
static const signed short ff_joystick[] = {
FF_CONSTANT,
-1
};
static const signed short ff_joystick_ac[] = {
FF_CONSTANT,
FF_AUTOCENTER,
-1
};
static const struct dev_type devices[] = {
{ 0x046d, 0xc211, ff_rumble },
{ 0x046d, 0xc219, ff_rumble },
{ 0x046d, 0xc283, ff_joystick },
{ 0x046d, 0xc286, ff_joystick_ac },
{ 0x046d, 0xc287, ff_joystick_ac },
{ 0x046d, 0xc293, ff_joystick },
{ 0x046d, 0xc295, ff_joystick },
};
static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
int x, y;
unsigned int left, right;
#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
switch (effect->type) {
case FF_CONSTANT:
x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
y = effect->u.ramp.end_level + 0x7f;
CLAMP(x);
CLAMP(y);
report->field[0]->value[0] = 0x51;
report->field[0]->value[1] = 0x08;
report->field[0]->value[2] = x;
report->field[0]->value[3] = y;
dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
break;
case FF_RUMBLE:
right = effect->u.rumble.strong_magnitude;
left = effect->u.rumble.weak_magnitude;
right = right * 0xff / 0xffff;
left = left * 0xff / 0xffff;
CLAMP(left);
CLAMP(right);
report->field[0]->value[0] = 0x42;
report->field[0]->value[1] = 0x00;
report->field[0]->value[2] = left;
report->field[0]->value[3] = right;
dbg_hid("(left, right)=(%04x, %04x)\n", left, right);
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
break;
}
return 0;
}
static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
__s32 *value = report->field[0]->value;
magnitude = (magnitude >> 12) & 0xf;
*value++ = 0xfe;
*value++ = 0x0d;
*value++ = magnitude; /* clockwise strength */
*value++ = magnitude; /* counter-clockwise strength */
*value++ = 0x80;
*value++ = 0x00;
*value = 0x00;
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
}
int lgff_init(struct hid_device* hid)
{
struct hid_input *hidinput;
struct input_dev *dev;
const signed short *ff_bits = ff_joystick;
int error;
int i;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
/* Check that the report looks ok */
if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
return -ENODEV;
for (i = 0; i < ARRAY_SIZE(devices); i++) {
if (dev->id.vendor == devices[i].idVendor &&
dev->id.product == devices[i].idProduct) {
ff_bits = devices[i].ff;
break;
}
}
for (i = 0; ff_bits[i] >= 0; i++)
set_bit(ff_bits[i], dev->ffbit);
error = input_ff_create_memless(dev, NULL, hid_lgff_play);
if (error)
return error;
if ( test_bit(FF_AUTOCENTER, dev->ffbit) )
dev->ff->set_autocenter = hid_lgff_set_autocenter;
pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <[email protected]>\n");
return 0;
}
| linux-master | drivers/hid/hid-lgff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Steelseries devices
*
* Copyright (c) 2013 Simon Wood
* Copyright (c) 2023 Bastien Nocera
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/leds.h>
#include "hid-ids.h"
#define STEELSERIES_SRWS1 BIT(0)
#define STEELSERIES_ARCTIS_1 BIT(1)
struct steelseries_device {
struct hid_device *hdev;
unsigned long quirks;
struct delayed_work battery_work;
spinlock_t lock;
bool removed;
struct power_supply_desc battery_desc;
struct power_supply *battery;
uint8_t battery_capacity;
bool headset_connected;
};
#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
(IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
#define SRWS1_NUMBER_LEDS 15
struct steelseries_srws1_data {
__u16 led_state;
/* the last element is used for setting all leds simultaneously */
struct led_classdev *led[SRWS1_NUMBER_LEDS + 1];
};
#endif
/* Fixed report descriptor for Steelseries SRW-S1 wheel controller
*
* The original descriptor hides the sensitivity and assists dials
* a custom vendor usage page. This inserts a patch to make them
* appear in the 'Generic Desktop' usage.
*/
static __u8 steelseries_srws1_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop) */
0x09, 0x08, /* Usage (MultiAxis), Changed */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x05, 0x01, /* Changed Usage Page (Desktop), */
0x09, 0x30, /* Changed Usage (X), */
0x16, 0xF8, 0xF8, /* Logical Minimum (-1800), */
0x26, 0x08, 0x07, /* Logical Maximum (1800), */
0x65, 0x14, /* Unit (Degrees), */
0x55, 0x0F, /* Unit Exponent (15), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Changed Usage (Y), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x75, 0x0C, /* Report Size (12), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Changed Usage (Z), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x75, 0x0C, /* Report Size (12), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x39, /* Usage (Hat Switch), */
0x25, 0x07, /* Logical Maximum (7), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0x3B, 0x01, /* Physical Maximum (315), */
0x65, 0x14, /* Unit (Degrees), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x65, 0x00, /* Unit, */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x11, /* Usage Maximum (11h), */
0x95, 0x11, /* Report Count (17), */
0x81, 0x02, /* Input (Variable), */
/* ---- Dial patch starts here ---- */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x33, /* Usage (RX), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x02, /* Report Count (2), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x0b, /* Logical Maximum (b), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x35, /* Usage (RZ), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x81, 0x02, /* Input (Variable), */
/* ---- Dial patch ends here ---- */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x75, 0x04, /* Changed Report Size (4), */
0x95, 0x0D, /* Changed Report Count (13), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x02, /* Usage (02h), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x10, /* Report Count (16), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
(IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
static void steelseries_srws1_set_leds(struct hid_device *hdev, __u16 leds)
{
struct list_head *report_list = &hdev->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
__s32 *value = report->field[0]->value;
value[0] = 0x40;
value[1] = leds & 0xFF;
value[2] = leds >> 8;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
value[7] = 0x00;
value[8] = 0x00;
value[9] = 0x00;
value[10] = 0x00;
value[11] = 0x00;
value[12] = 0x00;
value[13] = 0x00;
value[14] = 0x00;
value[15] = 0x00;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
/* Note: LED change does not show on device until the device is read/polled */
}
static void steelseries_srws1_led_all_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct steelseries_srws1_data *drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Device data not found.");
return;
}
if (value == LED_OFF)
drv_data->led_state = 0;
else
drv_data->led_state = (1 << (SRWS1_NUMBER_LEDS + 1)) - 1;
steelseries_srws1_set_leds(hid, drv_data->led_state);
}
static enum led_brightness steelseries_srws1_led_all_get_brightness(struct led_classdev *led_cdev)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct steelseries_srws1_data *drv_data;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Device data not found.");
return LED_OFF;
}
return (drv_data->led_state >> SRWS1_NUMBER_LEDS) ? LED_FULL : LED_OFF;
}
static void steelseries_srws1_led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct steelseries_srws1_data *drv_data = hid_get_drvdata(hid);
int i, state = 0;
if (!drv_data) {
hid_err(hid, "Device data not found.");
return;
}
for (i = 0; i < SRWS1_NUMBER_LEDS; i++) {
if (led_cdev != drv_data->led[i])
continue;
state = (drv_data->led_state >> i) & 1;
if (value == LED_OFF && state) {
drv_data->led_state &= ~(1 << i);
steelseries_srws1_set_leds(hid, drv_data->led_state);
} else if (value != LED_OFF && !state) {
drv_data->led_state |= 1 << i;
steelseries_srws1_set_leds(hid, drv_data->led_state);
}
break;
}
}
static enum led_brightness steelseries_srws1_led_get_brightness(struct led_classdev *led_cdev)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct steelseries_srws1_data *drv_data;
int i, value = 0;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Device data not found.");
return LED_OFF;
}
for (i = 0; i < SRWS1_NUMBER_LEDS; i++)
if (led_cdev == drv_data->led[i]) {
value = (drv_data->led_state >> i) & 1;
break;
}
return value ? LED_FULL : LED_OFF;
}
static int steelseries_srws1_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret, i;
struct led_classdev *led;
size_t name_sz;
char *name;
struct steelseries_srws1_data *drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
if (drv_data == NULL) {
hid_err(hdev, "can't alloc SRW-S1 memory\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, drv_data);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 16)) {
ret = -ENODEV;
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
/* register led subsystem */
drv_data->led_state = 0;
for (i = 0; i < SRWS1_NUMBER_LEDS + 1; i++)
drv_data->led[i] = NULL;
steelseries_srws1_set_leds(hdev, 0);
name_sz = strlen(hdev->uniq) + 16;
/* 'ALL', for setting all LEDs simultaneously */
led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
if (!led) {
hid_err(hdev, "can't allocate memory for LED ALL\n");
goto err_led;
}
name = (void *)(&led[1]);
snprintf(name, name_sz, "SRWS1::%s::RPMALL", hdev->uniq);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = steelseries_srws1_led_all_get_brightness;
led->brightness_set = steelseries_srws1_led_all_set_brightness;
drv_data->led[SRWS1_NUMBER_LEDS] = led;
ret = led_classdev_register(&hdev->dev, led);
if (ret)
goto err_led;
/* Each individual LED */
for (i = 0; i < SRWS1_NUMBER_LEDS; i++) {
led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
if (!led) {
hid_err(hdev, "can't allocate memory for LED %d\n", i);
goto err_led;
}
name = (void *)(&led[1]);
snprintf(name, name_sz, "SRWS1::%s::RPM%d", hdev->uniq, i+1);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = steelseries_srws1_led_get_brightness;
led->brightness_set = steelseries_srws1_led_set_brightness;
drv_data->led[i] = led;
ret = led_classdev_register(&hdev->dev, led);
if (ret) {
hid_err(hdev, "failed to register LED %d. Aborting.\n", i);
err_led:
/* Deregister all LEDs (if any) */
for (i = 0; i < SRWS1_NUMBER_LEDS + 1; i++) {
led = drv_data->led[i];
drv_data->led[i] = NULL;
if (!led)
continue;
led_classdev_unregister(led);
kfree(led);
}
goto out; /* but let the driver continue without LEDs */
}
}
out:
return 0;
err_free:
kfree(drv_data);
return ret;
}
static void steelseries_srws1_remove(struct hid_device *hdev)
{
int i;
struct led_classdev *led;
struct steelseries_srws1_data *drv_data = hid_get_drvdata(hdev);
if (drv_data) {
/* Deregister LEDs (if any) */
for (i = 0; i < SRWS1_NUMBER_LEDS + 1; i++) {
led = drv_data->led[i];
drv_data->led[i] = NULL;
if (!led)
continue;
led_classdev_unregister(led);
kfree(led);
}
}
hid_hw_stop(hdev);
kfree(drv_data);
return;
}
#endif
#define STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS 3000
#define ARCTIS_1_BATTERY_RESPONSE_LEN 8
static const char arctis_1_battery_request[] = { 0x06, 0x12 };
static int steelseries_headset_arctis_1_fetch_battery(struct hid_device *hdev)
{
u8 *write_buf;
int ret;
/* Request battery information */
write_buf = kmemdup(arctis_1_battery_request, sizeof(arctis_1_battery_request), GFP_KERNEL);
if (!write_buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, arctis_1_battery_request[0],
write_buf, sizeof(arctis_1_battery_request),
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
if (ret < sizeof(arctis_1_battery_request)) {
hid_err(hdev, "hid_hw_raw_request() failed with %d\n", ret);
ret = -ENODATA;
}
kfree(write_buf);
return ret;
}
static void steelseries_headset_fetch_battery(struct hid_device *hdev)
{
struct steelseries_device *sd = hid_get_drvdata(hdev);
int ret = 0;
if (sd->quirks & STEELSERIES_ARCTIS_1)
ret = steelseries_headset_arctis_1_fetch_battery(hdev);
if (ret < 0)
hid_dbg(hdev,
"Battery query failed (err: %d)\n", ret);
}
static void steelseries_headset_battery_timer_tick(struct work_struct *work)
{
struct steelseries_device *sd = container_of(work,
struct steelseries_device, battery_work.work);
struct hid_device *hdev = sd->hdev;
steelseries_headset_fetch_battery(hdev);
}
static int steelseries_headset_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct steelseries_device *sd = power_supply_get_drvdata(psy);
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_STATUS:
val->intval = sd->headset_connected ?
POWER_SUPPLY_STATUS_DISCHARGING :
POWER_SUPPLY_STATUS_UNKNOWN;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = sd->battery_capacity;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static void
steelseries_headset_set_wireless_status(struct hid_device *hdev,
bool connected)
{
struct usb_interface *intf;
if (!hid_is_usb(hdev))
return;
intf = to_usb_interface(hdev->dev.parent);
usb_set_wireless_status(intf, connected ?
USB_WIRELESS_STATUS_CONNECTED :
USB_WIRELESS_STATUS_DISCONNECTED);
}
static enum power_supply_property steelseries_headset_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CAPACITY,
};
static int steelseries_headset_battery_register(struct steelseries_device *sd)
{
static atomic_t battery_no = ATOMIC_INIT(0);
struct power_supply_config battery_cfg = { .drv_data = sd, };
unsigned long n;
int ret;
sd->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
sd->battery_desc.properties = steelseries_headset_battery_props;
sd->battery_desc.num_properties = ARRAY_SIZE(steelseries_headset_battery_props);
sd->battery_desc.get_property = steelseries_headset_battery_get_property;
sd->battery_desc.use_for_apm = 0;
n = atomic_inc_return(&battery_no) - 1;
sd->battery_desc.name = devm_kasprintf(&sd->hdev->dev, GFP_KERNEL,
"steelseries_headset_battery_%ld", n);
if (!sd->battery_desc.name)
return -ENOMEM;
/* avoid the warning of 0% battery while waiting for the first info */
steelseries_headset_set_wireless_status(sd->hdev, false);
sd->battery_capacity = 100;
sd->battery = devm_power_supply_register(&sd->hdev->dev,
&sd->battery_desc, &battery_cfg);
if (IS_ERR(sd->battery)) {
ret = PTR_ERR(sd->battery);
hid_err(sd->hdev,
"%s:power_supply_register failed with error %d\n",
__func__, ret);
return ret;
}
power_supply_powers(sd->battery, &sd->hdev->dev);
INIT_DELAYED_WORK(&sd->battery_work, steelseries_headset_battery_timer_tick);
steelseries_headset_fetch_battery(sd->hdev);
return 0;
}
static int steelseries_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct steelseries_device *sd;
int ret;
sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
if (!sd)
return -ENOMEM;
hid_set_drvdata(hdev, sd);
sd->hdev = hdev;
sd->quirks = id->driver_data;
if (sd->quirks & STEELSERIES_SRWS1) {
#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
(IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
return steelseries_srws1_probe(hdev, id);
#else
return -ENODEV;
#endif
}
ret = hid_parse(hdev);
if (ret)
return ret;
spin_lock_init(&sd->lock);
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
return ret;
if (steelseries_headset_battery_register(sd) < 0)
hid_err(sd->hdev,
"Failed to register battery for headset\n");
return ret;
}
static void steelseries_remove(struct hid_device *hdev)
{
struct steelseries_device *sd = hid_get_drvdata(hdev);
unsigned long flags;
if (sd->quirks & STEELSERIES_SRWS1) {
#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
(IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
steelseries_srws1_remove(hdev);
#endif
return;
}
spin_lock_irqsave(&sd->lock, flags);
sd->removed = true;
spin_unlock_irqrestore(&sd->lock, flags);
cancel_delayed_work_sync(&sd->battery_work);
hid_hw_stop(hdev);
}
static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (hdev->vendor != USB_VENDOR_ID_STEELSERIES ||
hdev->product != USB_DEVICE_ID_STEELSERIES_SRWS1)
return rdesc;
if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8
&& rdesc[29] == 0xbb && rdesc[40] == 0xc5) {
hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n");
rdesc = steelseries_srws1_rdesc_fixed;
*rsize = sizeof(steelseries_srws1_rdesc_fixed);
}
return rdesc;
}
static int steelseries_headset_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *read_buf,
int size)
{
struct steelseries_device *sd = hid_get_drvdata(hdev);
int capacity = sd->battery_capacity;
bool connected = sd->headset_connected;
unsigned long flags;
/* Not a headset */
if (sd->quirks & STEELSERIES_SRWS1)
return 0;
if (sd->quirks & STEELSERIES_ARCTIS_1) {
hid_dbg(sd->hdev,
"Parsing raw event for Arctis 1 headset (%*ph)\n", size, read_buf);
if (size < ARCTIS_1_BATTERY_RESPONSE_LEN ||
memcmp (read_buf, arctis_1_battery_request, sizeof(arctis_1_battery_request)))
return 0;
if (read_buf[2] == 0x01) {
connected = false;
capacity = 100;
} else {
connected = true;
capacity = read_buf[3];
}
}
if (connected != sd->headset_connected) {
hid_dbg(sd->hdev,
"Connected status changed from %sconnected to %sconnected\n",
sd->headset_connected ? "" : "not ",
connected ? "" : "not ");
sd->headset_connected = connected;
steelseries_headset_set_wireless_status(hdev, connected);
}
if (capacity != sd->battery_capacity) {
hid_dbg(sd->hdev,
"Battery capacity changed from %d%% to %d%%\n",
sd->battery_capacity, capacity);
sd->battery_capacity = capacity;
power_supply_changed(sd->battery);
}
spin_lock_irqsave(&sd->lock, flags);
if (!sd->removed)
schedule_delayed_work(&sd->battery_work,
msecs_to_jiffies(STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS));
spin_unlock_irqrestore(&sd->lock, flags);
return 0;
}
static const struct hid_device_id steelseries_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1),
.driver_data = STEELSERIES_SRWS1 },
{ /* SteelSeries Arctis 1 Wireless for XBox */
HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, 0x12b6),
.driver_data = STEELSERIES_ARCTIS_1 },
{ }
};
MODULE_DEVICE_TABLE(hid, steelseries_devices);
static struct hid_driver steelseries_driver = {
.name = "steelseries",
.id_table = steelseries_devices,
.probe = steelseries_probe,
.remove = steelseries_remove,
.report_fixup = steelseries_srws1_report_fixup,
.raw_event = steelseries_headset_raw_event,
};
module_hid_driver(steelseries_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Bastien Nocera <[email protected]>");
MODULE_AUTHOR("Simon Wood <[email protected]>");
| linux-master | drivers/hid/hid-steelseries.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for the apple ir device
*
* Original driver written by James McKenzie
* Ported to recent 2.6 kernel versions by Greg Kroah-Hartman <[email protected]>
* Updated to support newer remotes by Bastien Nocera <[email protected]>
* Ported to HID subsystem by Benjamin Tissoires <[email protected]>
*
* Copyright (C) 2006 James McKenzie
* Copyright (C) 2008 Greg Kroah-Hartman <[email protected]>
* Copyright (C) 2008 Novell Inc.
* Copyright (C) 2010, 2012 Bastien Nocera <[email protected]>
* Copyright (C) 2013 Benjamin Tissoires <[email protected]>
* Copyright (C) 2013 Red Hat Inc. All Rights Reserved
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("James McKenzie");
MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
MODULE_DESCRIPTION("HID Apple IR remote controls");
MODULE_LICENSE("GPL");
#define KEY_MASK 0x0F
#define TWO_PACKETS_MASK 0x40
/*
* James McKenzie has two devices both of which report the following
* 25 87 ee 83 0a +
* 25 87 ee 83 0c -
* 25 87 ee 83 09 <<
* 25 87 ee 83 06 >>
* 25 87 ee 83 05 >"
* 25 87 ee 83 03 menu
* 26 00 00 00 00 for key repeat
*/
/*
* Thomas Glanzmann reports the following responses
* 25 87 ee ca 0b +
* 25 87 ee ca 0d -
* 25 87 ee ca 08 <<
* 25 87 ee ca 07 >>
* 25 87 ee ca 04 >"
* 25 87 ee ca 02 menu
* 26 00 00 00 00 for key repeat
*
* He also observes the following event sometimes
* sent after a key is release, which I interpret
* as a flat battery message
* 25 87 e0 ca 06 flat battery
*/
/*
* Alexandre Karpenko reports the following responses for Device ID 0x8242
* 25 87 ee 47 0b +
* 25 87 ee 47 0d -
* 25 87 ee 47 08 <<
* 25 87 ee 47 07 >>
* 25 87 ee 47 04 >"
* 25 87 ee 47 02 menu
* 26 87 ee 47 ** for key repeat (** is the code of the key being held)
*/
/*
* Bastien Nocera's remote
* 25 87 ee 91 5f followed by
* 25 87 ee 91 05 gives you >"
*
* 25 87 ee 91 5c followed by
* 25 87 ee 91 05 gives you the middle button
*/
/*
* Fabien Andre's remote
* 25 87 ee a3 5e followed by
* 25 87 ee a3 04 gives you >"
*
* 25 87 ee a3 5d followed by
* 25 87 ee a3 04 gives you the middle button
*/
static const unsigned short appleir_key_table[] = {
KEY_RESERVED,
KEY_MENU,
KEY_PLAYPAUSE,
KEY_FORWARD,
KEY_BACK,
KEY_VOLUMEUP,
KEY_VOLUMEDOWN,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
KEY_ENTER,
KEY_PLAYPAUSE,
KEY_RESERVED,
};
struct appleir {
struct input_dev *input_dev;
struct hid_device *hid;
unsigned short keymap[ARRAY_SIZE(appleir_key_table)];
struct timer_list key_up_timer; /* timer for key up */
spinlock_t lock; /* protects .current_key */
int current_key; /* the currently pressed key */
int prev_key_idx; /* key index in a 2 packets message */
};
static int get_key(int data)
{
/*
* The key is coded accross bits 2..9:
*
* 0x00 or 0x01 ( ) key: 0 -> KEY_RESERVED
* 0x02 or 0x03 ( menu ) key: 1 -> KEY_MENU
* 0x04 or 0x05 ( >" ) key: 2 -> KEY_PLAYPAUSE
* 0x06 or 0x07 ( >> ) key: 3 -> KEY_FORWARD
* 0x08 or 0x09 ( << ) key: 4 -> KEY_BACK
* 0x0a or 0x0b ( + ) key: 5 -> KEY_VOLUMEUP
* 0x0c or 0x0d ( - ) key: 6 -> KEY_VOLUMEDOWN
* 0x0e or 0x0f ( ) key: 7 -> KEY_RESERVED
* 0x50 or 0x51 ( ) key: 8 -> KEY_RESERVED
* 0x52 or 0x53 ( ) key: 9 -> KEY_RESERVED
* 0x54 or 0x55 ( ) key: 10 -> KEY_RESERVED
* 0x56 or 0x57 ( ) key: 11 -> KEY_RESERVED
* 0x58 or 0x59 ( ) key: 12 -> KEY_RESERVED
* 0x5a or 0x5b ( ) key: 13 -> KEY_RESERVED
* 0x5c or 0x5d ( middle ) key: 14 -> KEY_ENTER
* 0x5e or 0x5f ( >" ) key: 15 -> KEY_PLAYPAUSE
*
* Packets starting with 0x5 are part of a two-packets message,
* we notify the caller by sending a negative value.
*/
int key = (data >> 1) & KEY_MASK;
if ((data & TWO_PACKETS_MASK))
/* Part of a 2 packets-command */
key = -key;
return key;
}
static void key_up(struct hid_device *hid, struct appleir *appleir, int key)
{
input_report_key(appleir->input_dev, key, 0);
input_sync(appleir->input_dev);
}
static void key_down(struct hid_device *hid, struct appleir *appleir, int key)
{
input_report_key(appleir->input_dev, key, 1);
input_sync(appleir->input_dev);
}
static void battery_flat(struct appleir *appleir)
{
dev_err(&appleir->input_dev->dev, "possible flat battery?\n");
}
static void key_up_tick(struct timer_list *t)
{
struct appleir *appleir = from_timer(appleir, t, key_up_timer);
struct hid_device *hid = appleir->hid;
unsigned long flags;
spin_lock_irqsave(&appleir->lock, flags);
if (appleir->current_key) {
key_up(hid, appleir, appleir->current_key);
appleir->current_key = 0;
}
spin_unlock_irqrestore(&appleir->lock, flags);
}
static int appleir_raw_event(struct hid_device *hid, struct hid_report *report,
u8 *data, int len)
{
struct appleir *appleir = hid_get_drvdata(hid);
static const u8 keydown[] = { 0x25, 0x87, 0xee };
static const u8 keyrepeat[] = { 0x26, };
static const u8 flatbattery[] = { 0x25, 0x87, 0xe0 };
unsigned long flags;
if (len != 5)
goto out;
if (!memcmp(data, keydown, sizeof(keydown))) {
int index;
spin_lock_irqsave(&appleir->lock, flags);
/*
* If we already have a key down, take it up before marking
* this one down
*/
if (appleir->current_key)
key_up(hid, appleir, appleir->current_key);
/* Handle dual packet commands */
if (appleir->prev_key_idx > 0)
index = appleir->prev_key_idx;
else
index = get_key(data[4]);
if (index >= 0) {
appleir->current_key = appleir->keymap[index];
key_down(hid, appleir, appleir->current_key);
/*
* Remote doesn't do key up, either pull them up, in
* the test above, or here set a timer which pulls
* them up after 1/8 s
*/
mod_timer(&appleir->key_up_timer, jiffies + HZ / 8);
appleir->prev_key_idx = 0;
} else
/* Remember key for next packet */
appleir->prev_key_idx = -index;
spin_unlock_irqrestore(&appleir->lock, flags);
goto out;
}
appleir->prev_key_idx = 0;
if (!memcmp(data, keyrepeat, sizeof(keyrepeat))) {
key_down(hid, appleir, appleir->current_key);
/*
* Remote doesn't do key up, either pull them up, in the test
* above, or here set a timer which pulls them up after 1/8 s
*/
mod_timer(&appleir->key_up_timer, jiffies + HZ / 8);
goto out;
}
if (!memcmp(data, flatbattery, sizeof(flatbattery))) {
battery_flat(appleir);
/* Fall through */
}
out:
/* let hidraw and hiddev handle the report */
return 0;
}
static int appleir_input_configured(struct hid_device *hid,
struct hid_input *hidinput)
{
struct input_dev *input_dev = hidinput->input;
struct appleir *appleir = hid_get_drvdata(hid);
int i;
appleir->input_dev = input_dev;
input_dev->keycode = appleir->keymap;
input_dev->keycodesize = sizeof(unsigned short);
input_dev->keycodemax = ARRAY_SIZE(appleir->keymap);
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
memcpy(appleir->keymap, appleir_key_table, sizeof(appleir->keymap));
for (i = 0; i < ARRAY_SIZE(appleir_key_table); i++)
set_bit(appleir->keymap[i], input_dev->keybit);
clear_bit(KEY_RESERVED, input_dev->keybit);
return 0;
}
static int appleir_input_mapping(struct hid_device *hid,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
return -1;
}
static int appleir_probe(struct hid_device *hid, const struct hid_device_id *id)
{
int ret;
struct appleir *appleir;
appleir = devm_kzalloc(&hid->dev, sizeof(struct appleir), GFP_KERNEL);
if (!appleir)
return -ENOMEM;
appleir->hid = hid;
/* force input as some remotes bypass the input registration */
hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
spin_lock_init(&appleir->lock);
timer_setup(&appleir->key_up_timer, key_up_tick, 0);
hid_set_drvdata(hid, appleir);
ret = hid_parse(hid);
if (ret) {
hid_err(hid, "parse failed\n");
goto fail;
}
ret = hid_hw_start(hid, HID_CONNECT_DEFAULT | HID_CONNECT_HIDDEV_FORCE);
if (ret) {
hid_err(hid, "hw start failed\n");
goto fail;
}
return 0;
fail:
devm_kfree(&hid->dev, appleir);
return ret;
}
static void appleir_remove(struct hid_device *hid)
{
struct appleir *appleir = hid_get_drvdata(hid);
hid_hw_stop(hid);
del_timer_sync(&appleir->key_up_timer);
}
static const struct hid_device_id appleir_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
{ }
};
MODULE_DEVICE_TABLE(hid, appleir_devices);
static struct hid_driver appleir_driver = {
.name = "appleir",
.id_table = appleir_devices,
.raw_event = appleir_raw_event,
.input_configured = appleir_input_configured,
.probe = appleir_probe,
.remove = appleir_remove,
.input_mapping = appleir_input_mapping,
};
module_hid_driver(appleir_driver);
| linux-master | drivers/hid/hid-appleir.c |
// SPDX-License-Identifier: GPL-2.0
/*
* U2F Zero LED and RNG driver
*
* Copyright 2018 Andrej Shadura <[email protected]>
* Loosely based on drivers/hid/hid-led.c
* and drivers/usb/misc/chaoskey.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*/
#include <linux/hid.h>
#include <linux/hidraw.h>
#include <linux/hw_random.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/usb.h>
#include "usbhid/usbhid.h"
#include "hid-ids.h"
#define DRIVER_SHORT "u2fzero"
#define HID_REPORT_SIZE 64
enum hw_revision {
HW_U2FZERO,
HW_NITROKEY_U2F,
};
struct hw_revision_config {
u8 rng_cmd;
u8 wink_cmd;
const char *name;
};
static const struct hw_revision_config hw_configs[] = {
[HW_U2FZERO] = {
.rng_cmd = 0x21,
.wink_cmd = 0x24,
.name = "U2F Zero",
},
[HW_NITROKEY_U2F] = {
.rng_cmd = 0xc0,
.wink_cmd = 0xc2,
.name = "NitroKey U2F",
},
};
/* We only use broadcast (CID-less) messages */
#define CID_BROADCAST 0xffffffff
struct u2f_hid_msg {
u32 cid;
union {
struct {
u8 cmd;
u8 bcnth;
u8 bcntl;
u8 data[HID_REPORT_SIZE - 7];
} init;
struct {
u8 seq;
u8 data[HID_REPORT_SIZE - 5];
} cont;
};
} __packed;
struct u2f_hid_report {
u8 report_type;
struct u2f_hid_msg msg;
} __packed;
#define U2F_HID_MSG_LEN(f) (size_t)(((f).init.bcnth << 8) + (f).init.bcntl)
struct u2fzero_device {
struct hid_device *hdev;
struct urb *urb; /* URB for the RNG data */
struct led_classdev ldev; /* Embedded struct for led */
struct hwrng hwrng; /* Embedded struct for hwrng */
char *led_name;
char *rng_name;
u8 *buf_out;
u8 *buf_in;
struct mutex lock;
bool present;
kernel_ulong_t hw_revision;
};
static int u2fzero_send(struct u2fzero_device *dev, struct u2f_hid_report *req)
{
int ret;
mutex_lock(&dev->lock);
memcpy(dev->buf_out, req, sizeof(struct u2f_hid_report));
ret = hid_hw_output_report(dev->hdev, dev->buf_out,
sizeof(struct u2f_hid_msg));
mutex_unlock(&dev->lock);
if (ret < 0)
return ret;
return ret == sizeof(struct u2f_hid_msg) ? 0 : -EMSGSIZE;
}
struct u2fzero_transfer_context {
struct completion done;
int status;
};
static void u2fzero_read_callback(struct urb *urb)
{
struct u2fzero_transfer_context *ctx = urb->context;
ctx->status = urb->status;
complete(&ctx->done);
}
static int u2fzero_recv(struct u2fzero_device *dev,
struct u2f_hid_report *req,
struct u2f_hid_msg *resp)
{
int ret;
struct hid_device *hdev = dev->hdev;
struct u2fzero_transfer_context ctx;
mutex_lock(&dev->lock);
memcpy(dev->buf_out, req, sizeof(struct u2f_hid_report));
dev->urb->context = &ctx;
init_completion(&ctx.done);
ret = usb_submit_urb(dev->urb, GFP_NOIO);
if (unlikely(ret)) {
hid_err(hdev, "usb_submit_urb failed: %d", ret);
goto err;
}
ret = hid_hw_output_report(dev->hdev, dev->buf_out,
sizeof(struct u2f_hid_msg));
if (ret < 0) {
hid_err(hdev, "hid_hw_output_report failed: %d", ret);
goto err;
}
ret = (wait_for_completion_timeout(
&ctx.done, msecs_to_jiffies(USB_CTRL_SET_TIMEOUT)));
if (ret == 0) {
usb_kill_urb(dev->urb);
hid_err(hdev, "urb submission timed out");
} else {
ret = dev->urb->actual_length;
memcpy(resp, dev->buf_in, ret);
}
err:
mutex_unlock(&dev->lock);
return ret;
}
static int u2fzero_blink(struct led_classdev *ldev)
{
struct u2fzero_device *dev = container_of(ldev,
struct u2fzero_device, ldev);
struct u2f_hid_report req = {
.report_type = 0,
.msg.cid = CID_BROADCAST,
.msg.init = {
.cmd = hw_configs[dev->hw_revision].wink_cmd,
.bcnth = 0,
.bcntl = 0,
.data = {0},
}
};
return u2fzero_send(dev, &req);
}
static int u2fzero_brightness_set(struct led_classdev *ldev,
enum led_brightness brightness)
{
ldev->brightness = LED_OFF;
if (brightness)
return u2fzero_blink(ldev);
else
return 0;
}
static int u2fzero_rng_read(struct hwrng *rng, void *data,
size_t max, bool wait)
{
struct u2fzero_device *dev = container_of(rng,
struct u2fzero_device, hwrng);
struct u2f_hid_report req = {
.report_type = 0,
.msg.cid = CID_BROADCAST,
.msg.init = {
.cmd = hw_configs[dev->hw_revision].rng_cmd,
.bcnth = 0,
.bcntl = 0,
.data = {0},
}
};
struct u2f_hid_msg resp;
int ret;
size_t actual_length;
/* valid packets must have a correct header */
int min_length = offsetof(struct u2f_hid_msg, init.data);
if (!dev->present) {
hid_dbg(dev->hdev, "device not present");
return 0;
}
ret = u2fzero_recv(dev, &req, &resp);
/* ignore errors or packets without data */
if (ret < min_length)
return 0;
/* only take the minimum amount of data it is safe to take */
actual_length = min3((size_t)ret - min_length,
U2F_HID_MSG_LEN(resp), max);
memcpy(data, resp.init.data, actual_length);
return actual_length;
}
static int u2fzero_init_led(struct u2fzero_device *dev,
unsigned int minor)
{
dev->led_name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL,
"%s%u", DRIVER_SHORT, minor);
if (dev->led_name == NULL)
return -ENOMEM;
dev->ldev.name = dev->led_name;
dev->ldev.max_brightness = LED_ON;
dev->ldev.flags = LED_HW_PLUGGABLE;
dev->ldev.brightness_set_blocking = u2fzero_brightness_set;
return devm_led_classdev_register(&dev->hdev->dev, &dev->ldev);
}
static int u2fzero_init_hwrng(struct u2fzero_device *dev,
unsigned int minor)
{
dev->rng_name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL,
"%s-rng%u", DRIVER_SHORT, minor);
if (dev->rng_name == NULL)
return -ENOMEM;
dev->hwrng.name = dev->rng_name;
dev->hwrng.read = u2fzero_rng_read;
return devm_hwrng_register(&dev->hdev->dev, &dev->hwrng);
}
static int u2fzero_fill_in_urb(struct u2fzero_device *dev)
{
struct hid_device *hdev = dev->hdev;
struct usb_device *udev;
struct usbhid_device *usbhid = hdev->driver_data;
unsigned int pipe_in;
struct usb_host_endpoint *ep;
if (dev->hdev->bus != BUS_USB)
return -EINVAL;
udev = hid_to_usb_dev(hdev);
if (!usbhid->urbout || !usbhid->urbin)
return -ENODEV;
ep = usb_pipe_endpoint(udev, usbhid->urbin->pipe);
if (!ep)
return -ENODEV;
dev->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb)
return -ENOMEM;
pipe_in = (usbhid->urbin->pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30);
usb_fill_int_urb(dev->urb,
udev,
pipe_in,
dev->buf_in,
HID_REPORT_SIZE,
u2fzero_read_callback,
NULL,
ep->desc.bInterval);
return 0;
}
static int u2fzero_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct u2fzero_device *dev;
unsigned int minor;
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
if (dev == NULL)
return -ENOMEM;
dev->hw_revision = id->driver_data;
dev->buf_out = devm_kmalloc(&hdev->dev,
sizeof(struct u2f_hid_report), GFP_KERNEL);
if (dev->buf_out == NULL)
return -ENOMEM;
dev->buf_in = devm_kmalloc(&hdev->dev,
sizeof(struct u2f_hid_msg), GFP_KERNEL);
if (dev->buf_in == NULL)
return -ENOMEM;
ret = hid_parse(hdev);
if (ret)
return ret;
dev->hdev = hdev;
hid_set_drvdata(hdev, dev);
mutex_init(&dev->lock);
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret)
return ret;
u2fzero_fill_in_urb(dev);
dev->present = true;
minor = ((struct hidraw *) hdev->hidraw)->minor;
ret = u2fzero_init_led(dev, minor);
if (ret) {
hid_hw_stop(hdev);
return ret;
}
hid_info(hdev, "%s LED initialised\n", hw_configs[dev->hw_revision].name);
ret = u2fzero_init_hwrng(dev, minor);
if (ret) {
hid_hw_stop(hdev);
return ret;
}
hid_info(hdev, "%s RNG initialised\n", hw_configs[dev->hw_revision].name);
return 0;
}
static void u2fzero_remove(struct hid_device *hdev)
{
struct u2fzero_device *dev = hid_get_drvdata(hdev);
mutex_lock(&dev->lock);
dev->present = false;
mutex_unlock(&dev->lock);
hid_hw_stop(hdev);
usb_poison_urb(dev->urb);
usb_free_urb(dev->urb);
}
static const struct hid_device_id u2fzero_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
USB_DEVICE_ID_U2F_ZERO),
.driver_data = HW_U2FZERO },
{ HID_USB_DEVICE(USB_VENDOR_ID_CLAY_LOGIC,
USB_DEVICE_ID_NITROKEY_U2F),
.driver_data = HW_NITROKEY_U2F },
{ }
};
MODULE_DEVICE_TABLE(hid, u2fzero_table);
static struct hid_driver u2fzero_driver = {
.name = "hid-" DRIVER_SHORT,
.probe = u2fzero_probe,
.remove = u2fzero_remove,
.id_table = u2fzero_table,
};
module_hid_driver(u2fzero_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andrej Shadura <[email protected]>");
MODULE_DESCRIPTION("U2F Zero LED and RNG driver");
| linux-master | drivers/hid/hid-u2fzero.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB Wacom tablet support - system specific code
*/
#include "wacom_wac.h"
#include "wacom.h"
#include <linux/input/mt.h>
#define WAC_MSG_RETRIES 5
#define WAC_CMD_RETRIES 10
#define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP)
#define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP)
#define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP)
static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf,
size_t size, unsigned int retries)
{
int retval;
do {
retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
HID_REQ_GET_REPORT);
} while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries);
if (retval < 0)
hid_err(hdev, "wacom_get_report: ran out of retries "
"(last error = %d)\n", retval);
return retval;
}
static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf,
size_t size, unsigned int retries)
{
int retval;
do {
retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
HID_REQ_SET_REPORT);
} while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries);
if (retval < 0)
hid_err(hdev, "wacom_set_report: ran out of retries "
"(last error = %d)\n", retval);
return retval;
}
static void wacom_wac_queue_insert(struct hid_device *hdev,
struct kfifo_rec_ptr_2 *fifo,
u8 *raw_data, int size)
{
bool warned = false;
while (kfifo_avail(fifo) < size) {
if (!warned)
hid_warn(hdev, "%s: kfifo has filled, starting to drop events\n", __func__);
warned = true;
kfifo_skip(fifo);
}
kfifo_in(fifo, raw_data, size);
}
static void wacom_wac_queue_flush(struct hid_device *hdev,
struct kfifo_rec_ptr_2 *fifo)
{
while (!kfifo_is_empty(fifo)) {
u8 buf[WACOM_PKGLEN_MAX];
int size;
int err;
size = kfifo_out(fifo, buf, sizeof(buf));
err = hid_report_raw_event(hdev, HID_INPUT_REPORT, buf, size, false);
if (err) {
hid_warn(hdev, "%s: unable to flush event due to error %d\n",
__func__, err);
}
}
}
static int wacom_wac_pen_serial_enforce(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int report_size)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
bool flush = false;
bool insert = false;
int i, j;
if (wacom_wac->serial[0] || !(features->quirks & WACOM_QUIRK_TOOLSERIAL))
return 0;
/* Queue events which have invalid tool type or serial number */
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->maxusage; j++) {
struct hid_field *field = report->field[i];
struct hid_usage *usage = &field->usage[j];
unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
unsigned int offset;
unsigned int size;
unsigned int value;
if (equivalent_usage != HID_DG_INRANGE &&
equivalent_usage != HID_DG_TOOLSERIALNUMBER &&
equivalent_usage != WACOM_HID_WD_SERIALHI &&
equivalent_usage != WACOM_HID_WD_TOOLTYPE)
continue;
offset = field->report_offset;
size = field->report_size;
value = hid_field_extract(hdev, raw_data+1, offset + j * size, size);
/* If we go out of range, we need to flush the queue ASAP */
if (equivalent_usage == HID_DG_INRANGE)
value = !value;
if (value) {
flush = true;
switch (equivalent_usage) {
case HID_DG_TOOLSERIALNUMBER:
wacom_wac->serial[0] = value;
break;
case WACOM_HID_WD_SERIALHI:
wacom_wac->serial[0] |= ((__u64)value) << 32;
break;
case WACOM_HID_WD_TOOLTYPE:
wacom_wac->id[0] = value;
break;
}
}
else {
insert = true;
}
}
}
if (flush)
wacom_wac_queue_flush(hdev, wacom_wac->pen_fifo);
else if (insert)
wacom_wac_queue_insert(hdev, wacom_wac->pen_fifo,
raw_data, report_size);
return insert && !flush;
}
static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *raw_data, int size)
{
struct wacom *wacom = hid_get_drvdata(hdev);
if (wacom->wacom_wac.features.type == BOOTLOADER)
return 0;
if (size > WACOM_PKGLEN_MAX)
return 1;
if (wacom_wac_pen_serial_enforce(hdev, report, raw_data, size))
return -1;
memcpy(wacom->wacom_wac.data, raw_data, size);
wacom_wac_irq(&wacom->wacom_wac, size);
return 0;
}
static int wacom_open(struct input_dev *dev)
{
struct wacom *wacom = input_get_drvdata(dev);
return hid_hw_open(wacom->hdev);
}
static void wacom_close(struct input_dev *dev)
{
struct wacom *wacom = input_get_drvdata(dev);
/*
* wacom->hdev should never be null, but surprisingly, I had the case
* once while unplugging the Wacom Wireless Receiver.
*/
if (wacom->hdev)
hid_hw_close(wacom->hdev);
}
/*
* Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
*/
static int wacom_calc_hid_res(int logical_extents, int physical_extents,
unsigned unit, int exponent)
{
struct hid_field field = {
.logical_maximum = logical_extents,
.physical_maximum = physical_extents,
.unit = unit,
.unit_exponent = exponent,
};
return hidinput_calc_abs_res(&field, ABS_X);
}
static void wacom_hid_usage_quirk(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_features *features = &wacom->wacom_wac.features;
unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
/*
* The Dell Canvas 27 needs to be switched to its vendor-defined
* report to provide the best resolution.
*/
if (hdev->vendor == USB_VENDOR_ID_WACOM &&
hdev->product == 0x4200 &&
field->application == HID_UP_MSVENDOR) {
wacom->wacom_wac.mode_report = field->report->id;
wacom->wacom_wac.mode_value = 2;
}
/*
* ISDv4 devices which predate HID's adoption of the
* HID_DG_BARELSWITCH2 usage use 0x000D0000 in its
* position instead. We can accurately detect if a
* usage with that value should be HID_DG_BARRELSWITCH2
* based on the surrounding usages, which have remained
* constant across generations.
*/
if (features->type == HID_GENERIC &&
usage->hid == 0x000D0000 &&
field->application == HID_DG_PEN &&
field->physical == HID_DG_STYLUS) {
int i = usage->usage_index;
if (i-4 >= 0 && i+1 < field->maxusage &&
field->usage[i-4].hid == HID_DG_TIPSWITCH &&
field->usage[i-3].hid == HID_DG_BARRELSWITCH &&
field->usage[i-2].hid == HID_DG_ERASER &&
field->usage[i-1].hid == HID_DG_INVERT &&
field->usage[i+1].hid == HID_DG_INRANGE) {
usage->hid = HID_DG_BARRELSWITCH2;
}
}
/*
* Wacom's AES devices use different vendor-defined usages to
* report serial number information compared to their branded
* hardware. The usages are also sometimes ill-defined and do
* not have the correct logical min/max values set. Lets patch
* the descriptor to use the branded usage convention and fix
* the errors.
*/
if (usage->hid == WACOM_HID_WT_SERIALNUMBER &&
field->report_size == 16 &&
field->index + 2 < field->report->maxfield) {
struct hid_field *a = field->report->field[field->index + 1];
struct hid_field *b = field->report->field[field->index + 2];
if (a->maxusage > 0 &&
a->usage[0].hid == HID_DG_TOOLSERIALNUMBER &&
a->report_size == 32 &&
b->maxusage > 0 &&
b->usage[0].hid == 0xFF000000 &&
b->report_size == 8) {
features->quirks |= WACOM_QUIRK_AESPEN;
usage->hid = WACOM_HID_WD_TOOLTYPE;
field->logical_minimum = S16_MIN;
field->logical_maximum = S16_MAX;
a->logical_minimum = S32_MIN;
a->logical_maximum = S32_MAX;
b->usage[0].hid = WACOM_HID_WD_SERIALHI;
b->logical_minimum = 0;
b->logical_maximum = U8_MAX;
}
}
/* 2nd-generation Intuos Pro Large has incorrect Y maximum */
if (hdev->vendor == USB_VENDOR_ID_WACOM &&
hdev->product == 0x0358 &&
WACOM_PEN_FIELD(field) &&
equivalent_usage == HID_GD_Y) {
field->logical_maximum = 43200;
}
}
static void wacom_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_features *features = &wacom->wacom_wac.features;
struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
u8 *data;
int ret;
u32 n;
wacom_hid_usage_quirk(hdev, field, usage);
switch (equivalent_usage) {
case WACOM_HID_WD_TOUCH_RING_SETTING:
wacom->generic_has_leds = true;
break;
case HID_DG_CONTACTMAX:
/* leave touch_max as is if predefined */
if (!features->touch_max) {
/* read manually */
n = hid_report_len(field->report);
data = hid_alloc_report_buf(field->report, GFP_KERNEL);
if (!data)
break;
data[0] = field->report->id;
ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
data, n, WAC_CMD_RETRIES);
if (ret == n && features->type == HID_GENERIC) {
ret = hid_report_raw_event(hdev,
HID_FEATURE_REPORT, data, n, 0);
} else if (ret == 2 && features->type != HID_GENERIC) {
features->touch_max = data[1];
} else {
features->touch_max = 16;
hid_warn(hdev, "wacom_feature_mapping: "
"could not get HID_DG_CONTACTMAX, "
"defaulting to %d\n",
features->touch_max);
}
kfree(data);
}
break;
case HID_DG_INPUTMODE:
/* Ignore if value index is out of bounds. */
if (usage->usage_index >= field->report_count) {
dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
break;
}
hid_data->inputmode = field->report->id;
hid_data->inputmode_index = usage->usage_index;
break;
case HID_UP_DIGITIZER:
if (field->report->id == 0x0B &&
(field->application == WACOM_HID_G9_PEN ||
field->application == WACOM_HID_G11_PEN)) {
wacom->wacom_wac.mode_report = field->report->id;
wacom->wacom_wac.mode_value = 0;
}
break;
case WACOM_HID_WD_DATAMODE:
wacom->wacom_wac.mode_report = field->report->id;
wacom->wacom_wac.mode_value = 2;
break;
case WACOM_HID_UP_G9:
case WACOM_HID_UP_G11:
if (field->report->id == 0x03 &&
(field->application == WACOM_HID_G9_TOUCHSCREEN ||
field->application == WACOM_HID_G11_TOUCHSCREEN)) {
wacom->wacom_wac.mode_report = field->report->id;
wacom->wacom_wac.mode_value = 0;
}
break;
case WACOM_HID_WD_OFFSETLEFT:
case WACOM_HID_WD_OFFSETTOP:
case WACOM_HID_WD_OFFSETRIGHT:
case WACOM_HID_WD_OFFSETBOTTOM:
/* read manually */
n = hid_report_len(field->report);
data = hid_alloc_report_buf(field->report, GFP_KERNEL);
if (!data)
break;
data[0] = field->report->id;
ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
data, n, WAC_CMD_RETRIES);
if (ret == n) {
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT,
data, n, 0);
} else {
hid_warn(hdev, "%s: could not retrieve sensor offsets\n",
__func__);
}
kfree(data);
break;
}
}
/*
* Interface Descriptor of wacom devices can be incomplete and
* inconsistent so wacom_features table is used to store stylus
* device's packet lengths, various maximum values, and tablet
* resolution based on product ID's.
*
* For devices that contain 2 interfaces, wacom_features table is
* inaccurate for the touch interface. Since the Interface Descriptor
* for touch interfaces has pretty complete data, this function exists
* to query tablet for this missing information instead of hard coding in
* an additional table.
*
* A typical Interface Descriptor for a stylus will contain a
* boot mouse application collection that is not of interest and this
* function will ignore it.
*
* It also contains a digitizer application collection that also is not
* of interest since any information it contains would be duplicate
* of what is in wacom_features. Usually it defines a report of an array
* of bytes that could be used as max length of the stylus packet returned.
* If it happens to define a Digitizer-Stylus Physical Collection then
* the X and Y logical values contain valid data but it is ignored.
*
* A typical Interface Descriptor for a touch interface will contain a
* Digitizer-Finger Physical Collection which will define both logical
* X/Y maximum as well as the physical size of tablet. Since touch
* interfaces haven't supported pressure or distance, this is enough
* information to override invalid values in the wacom_features table.
*
* Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
* data. We deal with them after returning from this function.
*/
static void wacom_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_features *features = &wacom->wacom_wac.features;
bool finger = WACOM_FINGER_FIELD(field);
bool pen = WACOM_PEN_FIELD(field);
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
/*
* Requiring Stylus Usage will ignore boot mouse
* X/Y values and some cases of invalid Digitizer X/Y
* values commonly reported.
*/
if (pen)
features->device_type |= WACOM_DEVICETYPE_PEN;
else if (finger)
features->device_type |= WACOM_DEVICETYPE_TOUCH;
else
return;
wacom_hid_usage_quirk(hdev, field, usage);
switch (equivalent_usage) {
case HID_GD_X:
features->x_max = field->logical_maximum;
if (finger) {
features->x_phy = field->physical_maximum;
if ((features->type != BAMBOO_PT) &&
(features->type != BAMBOO_TOUCH)) {
features->unit = field->unit;
features->unitExpo = field->unit_exponent;
}
}
break;
case HID_GD_Y:
features->y_max = field->logical_maximum;
if (finger) {
features->y_phy = field->physical_maximum;
if ((features->type != BAMBOO_PT) &&
(features->type != BAMBOO_TOUCH)) {
features->unit = field->unit;
features->unitExpo = field->unit_exponent;
}
}
break;
case HID_DG_TIPPRESSURE:
if (pen)
features->pressure_max = field->logical_maximum;
break;
}
if (features->type == HID_GENERIC)
wacom_wac_usage_mapping(hdev, field, usage);
}
static void wacom_post_parse_hid(struct hid_device *hdev,
struct wacom_features *features)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
if (features->type == HID_GENERIC) {
/* Any last-minute generic device setup */
if (wacom_wac->has_mode_change) {
if (wacom_wac->is_direct_mode)
features->device_type |= WACOM_DEVICETYPE_DIRECT;
else
features->device_type &= ~WACOM_DEVICETYPE_DIRECT;
}
if (features->touch_max > 1) {
if (features->device_type & WACOM_DEVICETYPE_DIRECT)
input_mt_init_slots(wacom_wac->touch_input,
wacom_wac->features.touch_max,
INPUT_MT_DIRECT);
else
input_mt_init_slots(wacom_wac->touch_input,
wacom_wac->features.touch_max,
INPUT_MT_POINTER);
}
}
}
static void wacom_parse_hid(struct hid_device *hdev,
struct wacom_features *features)
{
struct hid_report_enum *rep_enum;
struct hid_report *hreport;
int i, j;
/* check features first */
rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(hreport, &rep_enum->report_list, list) {
for (i = 0; i < hreport->maxfield; i++) {
/* Ignore if report count is out of bounds. */
if (hreport->field[i]->report_count < 1)
continue;
for (j = 0; j < hreport->field[i]->maxusage; j++) {
wacom_feature_mapping(hdev, hreport->field[i],
hreport->field[i]->usage + j);
}
}
}
/* now check the input usages */
rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
list_for_each_entry(hreport, &rep_enum->report_list, list) {
if (!hreport->maxfield)
continue;
for (i = 0; i < hreport->maxfield; i++)
for (j = 0; j < hreport->field[i]->maxusage; j++)
wacom_usage_mapping(hdev, hreport->field[i],
hreport->field[i]->usage + j);
}
wacom_post_parse_hid(hdev, features);
}
static int wacom_hid_set_device_mode(struct hid_device *hdev)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
struct hid_report *r;
struct hid_report_enum *re;
if (hid_data->inputmode < 0)
return 0;
re = &(hdev->report_enum[HID_FEATURE_REPORT]);
r = re->report_id_hash[hid_data->inputmode];
if (r) {
r->field[0]->value[hid_data->inputmode_index] = 2;
hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
}
return 0;
}
static int wacom_set_device_mode(struct hid_device *hdev,
struct wacom_wac *wacom_wac)
{
u8 *rep_data;
struct hid_report *r;
struct hid_report_enum *re;
u32 length;
int error = -ENOMEM, limit = 0;
if (wacom_wac->mode_report < 0)
return 0;
re = &(hdev->report_enum[HID_FEATURE_REPORT]);
r = re->report_id_hash[wacom_wac->mode_report];
if (!r)
return -EINVAL;
rep_data = hid_alloc_report_buf(r, GFP_KERNEL);
if (!rep_data)
return -ENOMEM;
length = hid_report_len(r);
do {
rep_data[0] = wacom_wac->mode_report;
rep_data[1] = wacom_wac->mode_value;
error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data,
length, 1);
if (error >= 0)
error = wacom_get_report(hdev, HID_FEATURE_REPORT,
rep_data, length, 1);
} while (error >= 0 &&
rep_data[1] != wacom_wac->mode_report &&
limit++ < WAC_MSG_RETRIES);
kfree(rep_data);
return error < 0 ? error : 0;
}
static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
struct wacom_features *features)
{
struct wacom *wacom = hid_get_drvdata(hdev);
int ret;
u8 rep_data[2];
switch (features->type) {
case GRAPHIRE_BT:
rep_data[0] = 0x03;
rep_data[1] = 0x00;
ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
3);
if (ret >= 0) {
rep_data[0] = speed == 0 ? 0x05 : 0x06;
rep_data[1] = 0x00;
ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
rep_data, 2, 3);
if (ret >= 0) {
wacom->wacom_wac.bt_high_speed = speed;
return 0;
}
}
/*
* Note that if the raw queries fail, it's not a hard failure
* and it is safe to continue
*/
hid_warn(hdev, "failed to poke device, command %d, err %d\n",
rep_data[0], ret);
break;
case INTUOS4WL:
if (speed == 1)
wacom->wacom_wac.bt_features &= ~0x20;
else
wacom->wacom_wac.bt_features |= 0x20;
rep_data[0] = 0x03;
rep_data[1] = wacom->wacom_wac.bt_features;
ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
1);
if (ret >= 0)
wacom->wacom_wac.bt_high_speed = speed;
break;
}
return 0;
}
/*
* Switch the tablet into its most-capable mode. Wacom tablets are
* typically configured to power-up in a mode which sends mouse-like
* reports to the OS. To get absolute position, pressure data, etc.
* from the tablet, it is necessary to switch the tablet out of this
* mode and into one which sends the full range of tablet data.
*/
static int _wacom_query_tablet_data(struct wacom *wacom)
{
struct hid_device *hdev = wacom->hdev;
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
if (hdev->bus == BUS_BLUETOOTH)
return wacom_bt_query_tablet_data(hdev, 1, features);
if (features->type != HID_GENERIC) {
if (features->device_type & WACOM_DEVICETYPE_TOUCH) {
if (features->type > TABLETPC) {
/* MT Tablet PC touch */
wacom_wac->mode_report = 3;
wacom_wac->mode_value = 4;
} else if (features->type == WACOM_24HDT) {
wacom_wac->mode_report = 18;
wacom_wac->mode_value = 2;
} else if (features->type == WACOM_27QHDT) {
wacom_wac->mode_report = 131;
wacom_wac->mode_value = 2;
} else if (features->type == BAMBOO_PAD) {
wacom_wac->mode_report = 2;
wacom_wac->mode_value = 2;
}
} else if (features->device_type & WACOM_DEVICETYPE_PEN) {
if (features->type <= BAMBOO_PT) {
wacom_wac->mode_report = 2;
wacom_wac->mode_value = 2;
}
}
}
wacom_set_device_mode(hdev, wacom_wac);
if (features->type == HID_GENERIC)
return wacom_hid_set_device_mode(hdev);
return 0;
}
static void wacom_retrieve_hid_descriptor(struct hid_device *hdev,
struct wacom_features *features)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct usb_interface *intf = wacom->intf;
/* default features */
features->x_fuzz = 4;
features->y_fuzz = 4;
features->pressure_fuzz = 0;
features->distance_fuzz = 1;
features->tilt_fuzz = 1;
/*
* The wireless device HID is basic and layout conflicts with
* other tablets (monitor and touch interface can look like pen).
* Skip the query for this type and modify defaults based on
* interface number.
*/
if (features->type == WIRELESS && intf) {
if (intf->cur_altsetting->desc.bInterfaceNumber == 0)
features->device_type = WACOM_DEVICETYPE_WL_MONITOR;
else
features->device_type = WACOM_DEVICETYPE_NONE;
return;
}
wacom_parse_hid(hdev, features);
}
struct wacom_hdev_data {
struct list_head list;
struct kref kref;
struct hid_device *dev;
struct wacom_shared shared;
};
static LIST_HEAD(wacom_udev_list);
static DEFINE_MUTEX(wacom_udev_list_lock);
static bool wacom_are_sibling(struct hid_device *hdev,
struct hid_device *sibling)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_features *features = &wacom->wacom_wac.features;
struct wacom *sibling_wacom = hid_get_drvdata(sibling);
struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features;
__u32 oVid = features->oVid ? features->oVid : hdev->vendor;
__u32 oPid = features->oPid ? features->oPid : hdev->product;
/* The defined oVid/oPid must match that of the sibling */
if (features->oVid != HID_ANY_ID && sibling->vendor != oVid)
return false;
if (features->oPid != HID_ANY_ID && sibling->product != oPid)
return false;
/*
* Devices with the same VID/PID must share the same physical
* device path, while those with different VID/PID must share
* the same physical parent device path.
*/
if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) {
if (!hid_compare_device_paths(hdev, sibling, '/'))
return false;
} else {
if (!hid_compare_device_paths(hdev, sibling, '.'))
return false;
}
/* Skip the remaining heuristics unless you are a HID_GENERIC device */
if (features->type != HID_GENERIC)
return true;
/*
* Direct-input devices may not be siblings of indirect-input
* devices.
*/
if ((features->device_type & WACOM_DEVICETYPE_DIRECT) &&
!(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT))
return false;
/*
* Indirect-input devices may not be siblings of direct-input
* devices.
*/
if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) &&
(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT))
return false;
/* Pen devices may only be siblings of touch devices */
if ((features->device_type & WACOM_DEVICETYPE_PEN) &&
!(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH))
return false;
/* Touch devices may only be siblings of pen devices */
if ((features->device_type & WACOM_DEVICETYPE_TOUCH) &&
!(sibling_features->device_type & WACOM_DEVICETYPE_PEN))
return false;
/*
* No reason could be found for these two devices to NOT be
* siblings, so there's a good chance they ARE siblings
*/
return true;
}
static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev)
{
struct wacom_hdev_data *data;
/* Try to find an already-probed interface from the same device */
list_for_each_entry(data, &wacom_udev_list, list) {
if (hid_compare_device_paths(hdev, data->dev, '/')) {
kref_get(&data->kref);
return data;
}
}
/* Fallback to finding devices that appear to be "siblings" */
list_for_each_entry(data, &wacom_udev_list, list) {
if (wacom_are_sibling(hdev, data->dev)) {
kref_get(&data->kref);
return data;
}
}
return NULL;
}
static void wacom_release_shared_data(struct kref *kref)
{
struct wacom_hdev_data *data =
container_of(kref, struct wacom_hdev_data, kref);
mutex_lock(&wacom_udev_list_lock);
list_del(&data->list);
mutex_unlock(&wacom_udev_list_lock);
kfree(data);
}
static void wacom_remove_shared_data(void *res)
{
struct wacom *wacom = res;
struct wacom_hdev_data *data;
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
if (wacom_wac->shared) {
data = container_of(wacom_wac->shared, struct wacom_hdev_data,
shared);
if (wacom_wac->shared->touch == wacom->hdev)
wacom_wac->shared->touch = NULL;
else if (wacom_wac->shared->pen == wacom->hdev)
wacom_wac->shared->pen = NULL;
kref_put(&data->kref, wacom_release_shared_data);
wacom_wac->shared = NULL;
}
}
static int wacom_add_shared_data(struct hid_device *hdev)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_hdev_data *data;
int retval = 0;
mutex_lock(&wacom_udev_list_lock);
data = wacom_get_hdev_data(hdev);
if (!data) {
data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL);
if (!data) {
mutex_unlock(&wacom_udev_list_lock);
return -ENOMEM;
}
kref_init(&data->kref);
data->dev = hdev;
list_add_tail(&data->list, &wacom_udev_list);
}
mutex_unlock(&wacom_udev_list_lock);
wacom_wac->shared = &data->shared;
retval = devm_add_action_or_reset(&hdev->dev, wacom_remove_shared_data, wacom);
if (retval)
return retval;
if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)
wacom_wac->shared->touch = hdev;
else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN)
wacom_wac->shared->pen = hdev;
return retval;
}
static int wacom_led_control(struct wacom *wacom)
{
unsigned char *buf;
int retval;
unsigned char report_id = WAC_CMD_LED_CONTROL;
int buf_size = 9;
if (!wacom->led.groups)
return -ENOTSUPP;
if (wacom->wacom_wac.features.type == REMOTE)
return -ENOTSUPP;
if (wacom->wacom_wac.pid) { /* wireless connected */
report_id = WAC_CMD_WL_LED_CONTROL;
buf_size = 13;
}
else if (wacom->wacom_wac.features.type == INTUOSP2_BT) {
report_id = WAC_CMD_WL_INTUOSP2;
buf_size = 51;
}
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (wacom->wacom_wac.features.type == HID_GENERIC) {
buf[0] = WAC_CMD_LED_CONTROL_GENERIC;
buf[1] = wacom->led.llv;
buf[2] = wacom->led.groups[0].select & 0x03;
} else if ((wacom->wacom_wac.features.type >= INTUOS5S &&
wacom->wacom_wac.features.type <= INTUOSPL)) {
/*
* Touch Ring and crop mark LED luminance may take on
* one of four values:
* 0 = Low; 1 = Medium; 2 = High; 3 = Off
*/
int ring_led = wacom->led.groups[0].select & 0x03;
int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03;
int crop_lum = 0;
unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led);
buf[0] = report_id;
if (wacom->wacom_wac.pid) {
wacom_get_report(wacom->hdev, HID_FEATURE_REPORT,
buf, buf_size, WAC_CMD_RETRIES);
buf[0] = report_id;
buf[4] = led_bits;
} else
buf[1] = led_bits;
}
else if (wacom->wacom_wac.features.type == INTUOSP2_BT) {
buf[0] = report_id;
buf[4] = 100; // Power Connection LED (ORANGE)
buf[5] = 100; // BT Connection LED (BLUE)
buf[6] = 100; // Paper Mode (RED?)
buf[7] = 100; // Paper Mode (GREEN?)
buf[8] = 100; // Paper Mode (BLUE?)
buf[9] = wacom->led.llv;
buf[10] = wacom->led.groups[0].select & 0x03;
}
else {
int led = wacom->led.groups[0].select | 0x4;
if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
wacom->wacom_wac.features.type == WACOM_24HD)
led |= (wacom->led.groups[1].select << 4) | 0x40;
buf[0] = report_id;
buf[1] = led;
buf[2] = wacom->led.llv;
buf[3] = wacom->led.hlv;
buf[4] = wacom->led.img_lum;
}
retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size,
WAC_CMD_RETRIES);
kfree(buf);
return retval;
}
static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
const unsigned len, const void *img)
{
unsigned char *buf;
int i, retval;
const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */
buf = kzalloc(chunk_len + 3 , GFP_KERNEL);
if (!buf)
return -ENOMEM;
/* Send 'start' command */
buf[0] = WAC_CMD_ICON_START;
buf[1] = 1;
retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
WAC_CMD_RETRIES);
if (retval < 0)
goto out;
buf[0] = xfer_id;
buf[1] = button_id & 0x07;
for (i = 0; i < 4; i++) {
buf[2] = i;
memcpy(buf + 3, img + i * chunk_len, chunk_len);
retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
buf, chunk_len + 3, WAC_CMD_RETRIES);
if (retval < 0)
break;
}
/* Send 'stop' */
buf[0] = WAC_CMD_ICON_START;
buf[1] = 0;
wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
WAC_CMD_RETRIES);
out:
kfree(buf);
return retval;
}
static ssize_t wacom_led_select_store(struct device *dev, int set_id,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
unsigned int id;
int err;
err = kstrtouint(buf, 10, &id);
if (err)
return err;
mutex_lock(&wacom->lock);
wacom->led.groups[set_id].select = id & 0x3;
err = wacom_led_control(wacom);
mutex_unlock(&wacom->lock);
return err < 0 ? err : count;
}
#define DEVICE_LED_SELECT_ATTR(SET_ID) \
static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
return wacom_led_select_store(dev, SET_ID, buf, count); \
} \
static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct hid_device *hdev = to_hid_device(dev);\
struct wacom *wacom = hid_get_drvdata(hdev); \
return scnprintf(buf, PAGE_SIZE, "%d\n", \
wacom->led.groups[SET_ID].select); \
} \
static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
wacom_led##SET_ID##_select_show, \
wacom_led##SET_ID##_select_store)
DEVICE_LED_SELECT_ATTR(0);
DEVICE_LED_SELECT_ATTR(1);
static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
const char *buf, size_t count)
{
unsigned int value;
int err;
err = kstrtouint(buf, 10, &value);
if (err)
return err;
mutex_lock(&wacom->lock);
*dest = value & 0x7f;
err = wacom_led_control(wacom);
mutex_unlock(&wacom->lock);
return err < 0 ? err : count;
}
#define DEVICE_LUMINANCE_ATTR(name, field) \
static ssize_t wacom_##name##_luminance_store(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
struct hid_device *hdev = to_hid_device(dev);\
struct wacom *wacom = hid_get_drvdata(hdev); \
\
return wacom_luminance_store(wacom, &wacom->led.field, \
buf, count); \
} \
static ssize_t wacom_##name##_luminance_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct wacom *wacom = dev_get_drvdata(dev); \
return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
} \
static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
wacom_##name##_luminance_show, \
wacom_##name##_luminance_store)
DEVICE_LUMINANCE_ATTR(status0, llv);
DEVICE_LUMINANCE_ATTR(status1, hlv);
DEVICE_LUMINANCE_ATTR(buttons, img_lum);
static ssize_t wacom_button_image_store(struct device *dev, int button_id,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
int err;
unsigned len;
u8 xfer_id;
if (hdev->bus == BUS_BLUETOOTH) {
len = 256;
xfer_id = WAC_CMD_ICON_BT_XFER;
} else {
len = 1024;
xfer_id = WAC_CMD_ICON_XFER;
}
if (count != len)
return -EINVAL;
mutex_lock(&wacom->lock);
err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf);
mutex_unlock(&wacom->lock);
return err < 0 ? err : count;
}
#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
struct device_attribute *attr, const char *buf, size_t count) \
{ \
return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
} \
static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
NULL, wacom_btnimg##BUTTON_ID##_store)
DEVICE_BTNIMG_ATTR(0);
DEVICE_BTNIMG_ATTR(1);
DEVICE_BTNIMG_ATTR(2);
DEVICE_BTNIMG_ATTR(3);
DEVICE_BTNIMG_ATTR(4);
DEVICE_BTNIMG_ATTR(5);
DEVICE_BTNIMG_ATTR(6);
DEVICE_BTNIMG_ATTR(7);
static struct attribute *cintiq_led_attrs[] = {
&dev_attr_status_led0_select.attr,
&dev_attr_status_led1_select.attr,
NULL
};
static const struct attribute_group cintiq_led_attr_group = {
.name = "wacom_led",
.attrs = cintiq_led_attrs,
};
static struct attribute *intuos4_led_attrs[] = {
&dev_attr_status0_luminance.attr,
&dev_attr_status1_luminance.attr,
&dev_attr_status_led0_select.attr,
&dev_attr_buttons_luminance.attr,
&dev_attr_button0_rawimg.attr,
&dev_attr_button1_rawimg.attr,
&dev_attr_button2_rawimg.attr,
&dev_attr_button3_rawimg.attr,
&dev_attr_button4_rawimg.attr,
&dev_attr_button5_rawimg.attr,
&dev_attr_button6_rawimg.attr,
&dev_attr_button7_rawimg.attr,
NULL
};
static const struct attribute_group intuos4_led_attr_group = {
.name = "wacom_led",
.attrs = intuos4_led_attrs,
};
static struct attribute *intuos5_led_attrs[] = {
&dev_attr_status0_luminance.attr,
&dev_attr_status_led0_select.attr,
NULL
};
static const struct attribute_group intuos5_led_attr_group = {
.name = "wacom_led",
.attrs = intuos5_led_attrs,
};
static struct attribute *generic_led_attrs[] = {
&dev_attr_status0_luminance.attr,
&dev_attr_status_led0_select.attr,
NULL
};
static const struct attribute_group generic_led_attr_group = {
.name = "wacom_led",
.attrs = generic_led_attrs,
};
struct wacom_sysfs_group_devres {
const struct attribute_group *group;
struct kobject *root;
};
static void wacom_devm_sysfs_group_release(struct device *dev, void *res)
{
struct wacom_sysfs_group_devres *devres = res;
struct kobject *kobj = devres->root;
dev_dbg(dev, "%s: dropping reference to %s\n",
__func__, devres->group->name);
sysfs_remove_group(kobj, devres->group);
}
static int __wacom_devm_sysfs_create_group(struct wacom *wacom,
struct kobject *root,
const struct attribute_group *group)
{
struct wacom_sysfs_group_devres *devres;
int error;
devres = devres_alloc(wacom_devm_sysfs_group_release,
sizeof(struct wacom_sysfs_group_devres),
GFP_KERNEL);
if (!devres)
return -ENOMEM;
devres->group = group;
devres->root = root;
error = sysfs_create_group(devres->root, group);
if (error) {
devres_free(devres);
return error;
}
devres_add(&wacom->hdev->dev, devres);
return 0;
}
static int wacom_devm_sysfs_create_group(struct wacom *wacom,
const struct attribute_group *group)
{
return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj,
group);
}
static void wacom_devm_kfifo_release(struct device *dev, void *res)
{
struct kfifo_rec_ptr_2 *devres = res;
kfifo_free(devres);
}
static int wacom_devm_kfifo_alloc(struct wacom *wacom)
{
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct kfifo_rec_ptr_2 *pen_fifo;
int error;
pen_fifo = devres_alloc(wacom_devm_kfifo_release,
sizeof(struct kfifo_rec_ptr_2),
GFP_KERNEL);
if (!pen_fifo)
return -ENOMEM;
error = kfifo_alloc(pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL);
if (error) {
devres_free(pen_fifo);
return error;
}
devres_add(&wacom->hdev->dev, pen_fifo);
wacom_wac->pen_fifo = pen_fifo;
return 0;
}
enum led_brightness wacom_leds_brightness_get(struct wacom_led *led)
{
struct wacom *wacom = led->wacom;
if (wacom->led.max_hlv)
return led->hlv * LED_FULL / wacom->led.max_hlv;
if (wacom->led.max_llv)
return led->llv * LED_FULL / wacom->led.max_llv;
/* device doesn't support brightness tuning */
return LED_FULL;
}
static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev)
{
struct wacom_led *led = container_of(cdev, struct wacom_led, cdev);
struct wacom *wacom = led->wacom;
if (wacom->led.groups[led->group].select != led->id)
return LED_OFF;
return wacom_leds_brightness_get(led);
}
static int wacom_led_brightness_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct wacom_led *led = container_of(cdev, struct wacom_led, cdev);
struct wacom *wacom = led->wacom;
int error;
mutex_lock(&wacom->lock);
if (!wacom->led.groups || (brightness == LED_OFF &&
wacom->led.groups[led->group].select != led->id)) {
error = 0;
goto out;
}
led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL;
led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL;
wacom->led.groups[led->group].select = led->id;
error = wacom_led_control(wacom);
out:
mutex_unlock(&wacom->lock);
return error;
}
static void wacom_led_readonly_brightness_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
}
static int wacom_led_register_one(struct device *dev, struct wacom *wacom,
struct wacom_led *led, unsigned int group,
unsigned int id, bool read_only)
{
int error;
char *name;
name = devm_kasprintf(dev, GFP_KERNEL,
"%s::wacom-%d.%d",
dev_name(dev),
group,
id);
if (!name)
return -ENOMEM;
if (!read_only) {
led->trigger.name = name;
error = devm_led_trigger_register(dev, &led->trigger);
if (error) {
hid_err(wacom->hdev,
"failed to register LED trigger %s: %d\n",
led->cdev.name, error);
return error;
}
}
led->group = group;
led->id = id;
led->wacom = wacom;
led->llv = wacom->led.llv;
led->hlv = wacom->led.hlv;
led->cdev.name = name;
led->cdev.max_brightness = LED_FULL;
led->cdev.flags = LED_HW_PLUGGABLE;
led->cdev.brightness_get = __wacom_led_brightness_get;
if (!read_only) {
led->cdev.brightness_set_blocking = wacom_led_brightness_set;
led->cdev.default_trigger = led->cdev.name;
} else {
led->cdev.brightness_set = wacom_led_readonly_brightness_set;
}
error = devm_led_classdev_register(dev, &led->cdev);
if (error) {
hid_err(wacom->hdev,
"failed to register LED %s: %d\n",
led->cdev.name, error);
led->cdev.name = NULL;
return error;
}
return 0;
}
static void wacom_led_groups_release_one(void *data)
{
struct wacom_group_leds *group = data;
devres_release_group(group->dev, group);
}
static int wacom_led_groups_alloc_and_register_one(struct device *dev,
struct wacom *wacom,
int group_id, int count,
bool read_only)
{
struct wacom_led *leds;
int i, error;
if (group_id >= wacom->led.count || count <= 0)
return -EINVAL;
if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL))
return -ENOMEM;
leds = devm_kcalloc(dev, count, sizeof(struct wacom_led), GFP_KERNEL);
if (!leds) {
error = -ENOMEM;
goto err;
}
wacom->led.groups[group_id].leds = leds;
wacom->led.groups[group_id].count = count;
for (i = 0; i < count; i++) {
error = wacom_led_register_one(dev, wacom, &leds[i],
group_id, i, read_only);
if (error)
goto err;
}
wacom->led.groups[group_id].dev = dev;
devres_close_group(dev, &wacom->led.groups[group_id]);
/*
* There is a bug (?) in devm_led_classdev_register() in which its
* increments the refcount of the parent. If the parent is an input
* device, that means the ref count never reaches 0 when
* devm_input_device_release() gets called.
* This means that the LEDs are still there after disconnect.
* Manually force the release of the group so that the leds are released
* once we are done using them.
*/
error = devm_add_action_or_reset(&wacom->hdev->dev,
wacom_led_groups_release_one,
&wacom->led.groups[group_id]);
if (error)
return error;
return 0;
err:
devres_release_group(dev, &wacom->led.groups[group_id]);
return error;
}
struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id,
unsigned int id)
{
struct wacom_group_leds *group;
if (group_id >= wacom->led.count)
return NULL;
group = &wacom->led.groups[group_id];
if (!group->leds)
return NULL;
id %= group->count;
return &group->leds[id];
}
/*
* wacom_led_next: gives the next available led with a wacom trigger.
*
* returns the next available struct wacom_led which has its default trigger
* or the current one if none is available.
*/
struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur)
{
struct wacom_led *next_led;
int group, next;
if (!wacom || !cur)
return NULL;
group = cur->group;
next = cur->id;
do {
next_led = wacom_led_find(wacom, group, ++next);
if (!next_led || next_led == cur)
return next_led;
} while (next_led->cdev.trigger != &next_led->trigger);
return next_led;
}
static void wacom_led_groups_release(void *data)
{
struct wacom *wacom = data;
wacom->led.groups = NULL;
wacom->led.count = 0;
}
static int wacom_led_groups_allocate(struct wacom *wacom, int count)
{
struct device *dev = &wacom->hdev->dev;
struct wacom_group_leds *groups;
int error;
groups = devm_kcalloc(dev, count, sizeof(struct wacom_group_leds),
GFP_KERNEL);
if (!groups)
return -ENOMEM;
error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom);
if (error)
return error;
wacom->led.groups = groups;
wacom->led.count = count;
return 0;
}
static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count,
int led_per_group, bool read_only)
{
struct device *dev;
int i, error;
if (!wacom->wacom_wac.pad_input)
return -EINVAL;
dev = &wacom->wacom_wac.pad_input->dev;
error = wacom_led_groups_allocate(wacom, group_count);
if (error)
return error;
for (i = 0; i < group_count; i++) {
error = wacom_led_groups_alloc_and_register_one(dev, wacom, i,
led_per_group,
read_only);
if (error)
return error;
}
return 0;
}
int wacom_initialize_leds(struct wacom *wacom)
{
int error;
if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD))
return 0;
/* Initialize default values */
switch (wacom->wacom_wac.features.type) {
case HID_GENERIC:
if (!wacom->generic_has_leds)
return 0;
wacom->led.llv = 100;
wacom->led.max_llv = 100;
error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
error = wacom_devm_sysfs_create_group(wacom,
&generic_led_attr_group);
break;
case INTUOS4S:
case INTUOS4:
case INTUOS4WL:
case INTUOS4L:
wacom->led.llv = 10;
wacom->led.hlv = 20;
wacom->led.max_llv = 127;
wacom->led.max_hlv = 127;
wacom->led.img_lum = 10;
error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
error = wacom_devm_sysfs_create_group(wacom,
&intuos4_led_attr_group);
break;
case WACOM_24HD:
case WACOM_21UX2:
wacom->led.llv = 0;
wacom->led.hlv = 0;
wacom->led.img_lum = 0;
error = wacom_leds_alloc_and_register(wacom, 2, 4, false);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
error = wacom_devm_sysfs_create_group(wacom,
&cintiq_led_attr_group);
break;
case INTUOS5S:
case INTUOS5:
case INTUOS5L:
case INTUOSPS:
case INTUOSPM:
case INTUOSPL:
wacom->led.llv = 32;
wacom->led.max_llv = 96;
error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
error = wacom_devm_sysfs_create_group(wacom,
&intuos5_led_attr_group);
break;
case INTUOSP2_BT:
wacom->led.llv = 50;
wacom->led.max_llv = 100;
error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
return 0;
case REMOTE:
wacom->led.llv = 255;
wacom->led.max_llv = 255;
error = wacom_led_groups_allocate(wacom, 5);
if (error) {
hid_err(wacom->hdev,
"cannot create leds err: %d\n", error);
return error;
}
return 0;
default:
return 0;
}
if (error) {
hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error);
return error;
}
return 0;
}
static void wacom_init_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, init_work.work);
_wacom_query_tablet_data(wacom);
wacom_led_control(wacom);
}
static void wacom_query_tablet_data(struct wacom *wacom)
{
schedule_delayed_work(&wacom->init_work, msecs_to_jiffies(1000));
}
static enum power_supply_property wacom_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_CAPACITY
};
static int wacom_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct wacom_battery *battery = power_supply_get_drvdata(psy);
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = battery->wacom->wacom_wac.name;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = battery->bat_connected;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = battery->battery_capacity;
break;
case POWER_SUPPLY_PROP_STATUS:
if (battery->bat_status != WACOM_POWER_SUPPLY_STATUS_AUTO)
val->intval = battery->bat_status;
else if (battery->bat_charging)
val->intval = POWER_SUPPLY_STATUS_CHARGING;
else if (battery->battery_capacity == 100 &&
battery->ps_connected)
val->intval = POWER_SUPPLY_STATUS_FULL;
else if (battery->ps_connected)
val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
else
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int __wacom_initialize_battery(struct wacom *wacom,
struct wacom_battery *battery)
{
static atomic_t battery_no = ATOMIC_INIT(0);
struct device *dev = &wacom->hdev->dev;
struct power_supply_config psy_cfg = { .drv_data = battery, };
struct power_supply *ps_bat;
struct power_supply_desc *bat_desc = &battery->bat_desc;
unsigned long n;
int error;
if (!devres_open_group(dev, bat_desc, GFP_KERNEL))
return -ENOMEM;
battery->wacom = wacom;
n = atomic_inc_return(&battery_no) - 1;
bat_desc->properties = wacom_battery_props;
bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props);
bat_desc->get_property = wacom_battery_get_property;
sprintf(battery->bat_name, "wacom_battery_%ld", n);
bat_desc->name = battery->bat_name;
bat_desc->type = POWER_SUPPLY_TYPE_BATTERY;
bat_desc->use_for_apm = 0;
ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg);
if (IS_ERR(ps_bat)) {
error = PTR_ERR(ps_bat);
goto err;
}
power_supply_powers(ps_bat, &wacom->hdev->dev);
battery->battery = ps_bat;
devres_close_group(dev, bat_desc);
return 0;
err:
devres_release_group(dev, bat_desc);
return error;
}
static int wacom_initialize_battery(struct wacom *wacom)
{
if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY)
return __wacom_initialize_battery(wacom, &wacom->battery);
return 0;
}
static void wacom_destroy_battery(struct wacom *wacom)
{
if (wacom->battery.battery) {
devres_release_group(&wacom->hdev->dev,
&wacom->battery.bat_desc);
wacom->battery.battery = NULL;
}
}
static ssize_t wacom_show_speed(struct device *dev,
struct device_attribute
*attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
return sysfs_emit(buf, "%i\n", wacom->wacom_wac.bt_high_speed);
}
static ssize_t wacom_store_speed(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
u8 new_speed;
if (kstrtou8(buf, 0, &new_speed))
return -EINVAL;
if (new_speed != 0 && new_speed != 1)
return -EINVAL;
wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features);
return count;
}
static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM,
wacom_show_speed, wacom_store_speed);
static ssize_t wacom_show_remote_mode(struct kobject *kobj,
struct kobj_attribute *kattr,
char *buf, int index)
{
struct device *dev = kobj_to_dev(kobj->parent);
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
u8 mode;
mode = wacom->led.groups[index].select;
return sprintf(buf, "%d\n", mode < 3 ? mode : -1);
}
#define DEVICE_EKR_ATTR_GROUP(SET_ID) \
static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \
struct kobj_attribute *kattr, char *buf) \
{ \
return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \
} \
static struct kobj_attribute remote##SET_ID##_mode_attr = { \
.attr = {.name = "remote_mode", \
.mode = DEV_ATTR_RO_PERM}, \
.show = wacom_show_remote##SET_ID##_mode, \
}; \
static struct attribute *remote##SET_ID##_serial_attrs[] = { \
&remote##SET_ID##_mode_attr.attr, \
NULL \
}; \
static const struct attribute_group remote##SET_ID##_serial_group = { \
.name = NULL, \
.attrs = remote##SET_ID##_serial_attrs, \
}
DEVICE_EKR_ATTR_GROUP(0);
DEVICE_EKR_ATTR_GROUP(1);
DEVICE_EKR_ATTR_GROUP(2);
DEVICE_EKR_ATTR_GROUP(3);
DEVICE_EKR_ATTR_GROUP(4);
static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial,
int index)
{
int error = 0;
struct wacom_remote *remote = wacom->remote;
remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev,
GFP_KERNEL,
"%d", serial);
if (!remote->remotes[index].group.name)
return -ENOMEM;
error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir,
&remote->remotes[index].group);
if (error) {
remote->remotes[index].group.name = NULL;
hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error);
return error;
}
return 0;
}
static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector)
{
const size_t buf_size = 2;
unsigned char *buf;
int retval;
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf[0] = WAC_CMD_DELETE_PAIRING;
buf[1] = selector;
retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf,
buf_size, WAC_CMD_RETRIES);
kfree(buf);
return retval;
}
static ssize_t wacom_store_unpair_remote(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count)
{
unsigned char selector = 0;
struct device *dev = kobj_to_dev(kobj->parent);
struct hid_device *hdev = to_hid_device(dev);
struct wacom *wacom = hid_get_drvdata(hdev);
int err;
if (!strncmp(buf, "*\n", 2)) {
selector = WAC_CMD_UNPAIR_ALL;
} else {
hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n",
buf);
return -1;
}
mutex_lock(&wacom->lock);
err = wacom_cmd_unpair_remote(wacom, selector);
mutex_unlock(&wacom->lock);
return err < 0 ? err : count;
}
static struct kobj_attribute unpair_remote_attr = {
.attr = {.name = "unpair_remote", .mode = 0200},
.store = wacom_store_unpair_remote,
};
static const struct attribute *remote_unpair_attrs[] = {
&unpair_remote_attr.attr,
NULL
};
static void wacom_remotes_destroy(void *data)
{
struct wacom *wacom = data;
struct wacom_remote *remote = wacom->remote;
if (!remote)
return;
kobject_put(remote->remote_dir);
kfifo_free(&remote->remote_fifo);
wacom->remote = NULL;
}
static int wacom_initialize_remotes(struct wacom *wacom)
{
int error = 0;
struct wacom_remote *remote;
int i;
if (wacom->wacom_wac.features.type != REMOTE)
return 0;
remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote),
GFP_KERNEL);
if (!remote)
return -ENOMEM;
wacom->remote = remote;
spin_lock_init(&remote->remote_lock);
error = kfifo_alloc(&remote->remote_fifo,
5 * sizeof(struct wacom_remote_work_data),
GFP_KERNEL);
if (error) {
hid_err(wacom->hdev, "failed allocating remote_fifo\n");
return -ENOMEM;
}
remote->remotes[0].group = remote0_serial_group;
remote->remotes[1].group = remote1_serial_group;
remote->remotes[2].group = remote2_serial_group;
remote->remotes[3].group = remote3_serial_group;
remote->remotes[4].group = remote4_serial_group;
remote->remote_dir = kobject_create_and_add("wacom_remote",
&wacom->hdev->dev.kobj);
if (!remote->remote_dir)
return -ENOMEM;
error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs);
if (error) {
hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error);
return error;
}
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
remote->remotes[i].serial = 0;
}
error = devm_add_action_or_reset(&wacom->hdev->dev,
wacom_remotes_destroy, wacom);
if (error)
return error;
return 0;
}
static struct input_dev *wacom_allocate_input(struct wacom *wacom)
{
struct input_dev *input_dev;
struct hid_device *hdev = wacom->hdev;
struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
input_dev = devm_input_allocate_device(&hdev->dev);
if (!input_dev)
return NULL;
input_dev->name = wacom_wac->features.name;
input_dev->phys = hdev->phys;
input_dev->dev.parent = &hdev->dev;
input_dev->open = wacom_open;
input_dev->close = wacom_close;
input_dev->uniq = hdev->uniq;
input_dev->id.bustype = hdev->bus;
input_dev->id.vendor = hdev->vendor;
input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product;
input_dev->id.version = hdev->version;
input_set_drvdata(input_dev, wacom);
return input_dev;
}
static int wacom_allocate_inputs(struct wacom *wacom)
{
struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
wacom_wac->pen_input = wacom_allocate_input(wacom);
wacom_wac->touch_input = wacom_allocate_input(wacom);
wacom_wac->pad_input = wacom_allocate_input(wacom);
if (!wacom_wac->pen_input ||
!wacom_wac->touch_input ||
!wacom_wac->pad_input)
return -ENOMEM;
wacom_wac->pen_input->name = wacom_wac->pen_name;
wacom_wac->touch_input->name = wacom_wac->touch_name;
wacom_wac->pad_input->name = wacom_wac->pad_name;
return 0;
}
static int wacom_register_inputs(struct wacom *wacom)
{
struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev;
struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
int error = 0;
pen_input_dev = wacom_wac->pen_input;
touch_input_dev = wacom_wac->touch_input;
pad_input_dev = wacom_wac->pad_input;
if (!pen_input_dev || !touch_input_dev || !pad_input_dev)
return -EINVAL;
error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac);
if (error) {
/* no pen in use on this interface */
input_free_device(pen_input_dev);
wacom_wac->pen_input = NULL;
pen_input_dev = NULL;
} else {
error = input_register_device(pen_input_dev);
if (error)
goto fail;
}
error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac);
if (error) {
/* no touch in use on this interface */
input_free_device(touch_input_dev);
wacom_wac->touch_input = NULL;
touch_input_dev = NULL;
} else {
error = input_register_device(touch_input_dev);
if (error)
goto fail;
}
error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac);
if (error) {
/* no pad events using this interface */
input_free_device(pad_input_dev);
wacom_wac->pad_input = NULL;
pad_input_dev = NULL;
} else {
error = input_register_device(pad_input_dev);
if (error)
goto fail;
}
return 0;
fail:
wacom_wac->pad_input = NULL;
wacom_wac->touch_input = NULL;
wacom_wac->pen_input = NULL;
return error;
}
/*
* Not all devices report physical dimensions from HID.
* Compute the default from hardcoded logical dimension
* and resolution before driver overwrites them.
*/
static void wacom_set_default_phy(struct wacom_features *features)
{
if (features->x_resolution) {
features->x_phy = (features->x_max * 100) /
features->x_resolution;
features->y_phy = (features->y_max * 100) /
features->y_resolution;
}
}
static void wacom_calculate_res(struct wacom_features *features)
{
/* set unit to "100th of a mm" for devices not reported by HID */
if (!features->unit) {
features->unit = 0x11;
features->unitExpo = -3;
}
features->x_resolution = wacom_calc_hid_res(features->x_max,
features->x_phy,
features->unit,
features->unitExpo);
features->y_resolution = wacom_calc_hid_res(features->y_max,
features->y_phy,
features->unit,
features->unitExpo);
}
void wacom_battery_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, battery_work);
if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
!wacom->battery.battery) {
wacom_initialize_battery(wacom);
}
else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
wacom->battery.battery) {
wacom_destroy_battery(wacom);
}
}
static size_t wacom_compute_pktlen(struct hid_device *hdev)
{
struct hid_report_enum *report_enum;
struct hid_report *report;
size_t size = 0;
report_enum = hdev->report_enum + HID_INPUT_REPORT;
list_for_each_entry(report, &report_enum->report_list, list) {
size_t report_size = hid_report_len(report);
if (report_size > size)
size = report_size;
}
return size;
}
static void wacom_update_name(struct wacom *wacom, const char *suffix)
{
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
char name[WACOM_NAME_MAX - 20]; /* Leave some room for suffixes */
/* Generic devices name unspecified */
if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) {
char *product_name = wacom->hdev->name;
if (hid_is_usb(wacom->hdev)) {
struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent);
struct usb_device *dev = interface_to_usbdev(intf);
product_name = dev->product;
}
if (wacom->hdev->bus == BUS_I2C) {
snprintf(name, sizeof(name), "%s %X",
features->name, wacom->hdev->product);
} else if (strstr(product_name, "Wacom") ||
strstr(product_name, "wacom") ||
strstr(product_name, "WACOM")) {
if (strscpy(name, product_name, sizeof(name)) < 0) {
hid_warn(wacom->hdev, "String overflow while assembling device name");
}
} else {
snprintf(name, sizeof(name), "Wacom %s", product_name);
}
/* strip out excess whitespaces */
while (1) {
char *gap = strstr(name, " ");
if (gap == NULL)
break;
/* shift everything including the terminator */
memmove(gap, gap+1, strlen(gap));
}
/* get rid of trailing whitespace */
if (name[strlen(name)-1] == ' ')
name[strlen(name)-1] = '\0';
} else {
if (strscpy(name, features->name, sizeof(name)) < 0) {
hid_warn(wacom->hdev, "String overflow while assembling device name");
}
}
snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s",
name, suffix);
/* Append the device type to the name */
snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name),
"%s%s Pen", name, suffix);
snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name),
"%s%s Finger", name, suffix);
snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name),
"%s%s Pad", name, suffix);
}
static void wacom_release_resources(struct wacom *wacom)
{
struct hid_device *hdev = wacom->hdev;
if (!wacom->resources)
return;
devres_release_group(&hdev->dev, wacom);
wacom->resources = false;
wacom->wacom_wac.pen_input = NULL;
wacom->wacom_wac.touch_input = NULL;
wacom->wacom_wac.pad_input = NULL;
}
static void wacom_set_shared_values(struct wacom_wac *wacom_wac)
{
if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) {
wacom_wac->shared->type = wacom_wac->features.type;
wacom_wac->shared->touch_input = wacom_wac->touch_input;
}
if (wacom_wac->has_mute_touch_switch) {
wacom_wac->shared->has_mute_touch_switch = true;
/* Hardware touch switch may be off. Wait until
* we know the switch state to decide is_touch_on.
* Softkey state should be initialized to "on" to
* match historic default.
*/
if (wacom_wac->is_soft_touch_switch)
wacom_wac->shared->is_touch_on = true;
}
if (wacom_wac->shared->has_mute_touch_switch &&
wacom_wac->shared->touch_input) {
set_bit(EV_SW, wacom_wac->shared->touch_input->evbit);
input_set_capability(wacom_wac->shared->touch_input, EV_SW,
SW_MUTE_DEVICE);
}
}
static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
{
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
struct hid_device *hdev = wacom->hdev;
int error;
unsigned int connect_mask = HID_CONNECT_HIDRAW;
features->pktlen = wacom_compute_pktlen(hdev);
if (features->pktlen > WACOM_PKGLEN_MAX)
return -EINVAL;
if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL))
return -ENOMEM;
wacom->resources = true;
error = wacom_allocate_inputs(wacom);
if (error)
goto fail;
/*
* Bamboo Pad has a generic hid handling for the Pen, and we switch it
* into debug mode for the touch part.
* We ignore the other interfaces.
*/
if (features->type == BAMBOO_PAD) {
if (features->pktlen == WACOM_PKGLEN_PENABLED) {
features->type = HID_GENERIC;
} else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) &&
(features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) {
error = -ENODEV;
goto fail;
}
}
/* set the default size in case we do not get them from hid */
wacom_set_default_phy(features);
/* Retrieve the physical and logical size for touch devices */
wacom_retrieve_hid_descriptor(hdev, features);
wacom_setup_device_quirks(wacom);
if (features->device_type == WACOM_DEVICETYPE_NONE &&
features->type != WIRELESS) {
error = features->type == HID_GENERIC ? -ENODEV : 0;
dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.",
hdev->name,
error ? "Ignoring" : "Assuming pen");
if (error)
goto fail;
features->device_type |= WACOM_DEVICETYPE_PEN;
}
wacom_calculate_res(features);
wacom_update_name(wacom, wireless ? " (WL)" : "");
/* pen only Bamboo neither support touch nor pad */
if ((features->type == BAMBOO_PEN) &&
((features->device_type & WACOM_DEVICETYPE_TOUCH) ||
(features->device_type & WACOM_DEVICETYPE_PAD))) {
error = -ENODEV;
goto fail;
}
error = wacom_add_shared_data(hdev);
if (error)
goto fail;
error = wacom_register_inputs(wacom);
if (error)
goto fail;
if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) {
error = wacom_initialize_leds(wacom);
if (error)
goto fail;
error = wacom_initialize_remotes(wacom);
if (error)
goto fail;
}
if (features->type == HID_GENERIC)
connect_mask |= HID_CONNECT_DRIVER;
/* Regular HID work starts now */
error = hid_hw_start(hdev, connect_mask);
if (error) {
hid_err(hdev, "hw start failed\n");
goto fail;
}
if (!wireless) {
/* Note that if query fails it is not a hard failure */
wacom_query_tablet_data(wacom);
}
/* touch only Bamboo doesn't support pen */
if ((features->type == BAMBOO_TOUCH) &&
(features->device_type & WACOM_DEVICETYPE_PEN)) {
cancel_delayed_work_sync(&wacom->init_work);
_wacom_query_tablet_data(wacom);
error = -ENODEV;
goto fail_quirks;
}
if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) {
error = hid_hw_open(hdev);
if (error) {
hid_err(hdev, "hw open failed\n");
goto fail_quirks;
}
}
wacom_set_shared_values(wacom_wac);
devres_close_group(&hdev->dev, wacom);
return 0;
fail_quirks:
hid_hw_stop(hdev);
fail:
wacom_release_resources(wacom);
return error;
}
static void wacom_wireless_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, wireless_work);
struct usb_device *usbdev = wacom->usbdev;
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct hid_device *hdev1, *hdev2;
struct wacom *wacom1, *wacom2;
struct wacom_wac *wacom_wac1, *wacom_wac2;
int error;
/*
* Regardless if this is a disconnect or a new tablet,
* remove any existing input and battery devices.
*/
wacom_destroy_battery(wacom);
if (!usbdev)
return;
/* Stylus interface */
hdev1 = usb_get_intfdata(usbdev->config->interface[1]);
wacom1 = hid_get_drvdata(hdev1);
wacom_wac1 = &(wacom1->wacom_wac);
wacom_release_resources(wacom1);
/* Touch interface */
hdev2 = usb_get_intfdata(usbdev->config->interface[2]);
wacom2 = hid_get_drvdata(hdev2);
wacom_wac2 = &(wacom2->wacom_wac);
wacom_release_resources(wacom2);
if (wacom_wac->pid == 0) {
hid_info(wacom->hdev, "wireless tablet disconnected\n");
} else {
const struct hid_device_id *id = wacom_ids;
hid_info(wacom->hdev, "wireless tablet connected with PID %x\n",
wacom_wac->pid);
while (id->bus) {
if (id->vendor == USB_VENDOR_ID_WACOM &&
id->product == wacom_wac->pid)
break;
id++;
}
if (!id->bus) {
hid_info(wacom->hdev, "ignoring unknown PID.\n");
return;
}
/* Stylus interface */
wacom_wac1->features =
*((struct wacom_features *)id->driver_data);
wacom_wac1->pid = wacom_wac->pid;
hid_hw_stop(hdev1);
error = wacom_parse_and_register(wacom1, true);
if (error)
goto fail;
/* Touch interface */
if (wacom_wac1->features.touch_max ||
(wacom_wac1->features.type >= INTUOSHT &&
wacom_wac1->features.type <= BAMBOO_PT)) {
wacom_wac2->features =
*((struct wacom_features *)id->driver_data);
wacom_wac2->pid = wacom_wac->pid;
hid_hw_stop(hdev2);
error = wacom_parse_and_register(wacom2, true);
if (error)
goto fail;
}
if (strscpy(wacom_wac->name, wacom_wac1->name,
sizeof(wacom_wac->name)) < 0) {
hid_warn(wacom->hdev, "String overflow while assembling device name");
}
}
return;
fail:
wacom_release_resources(wacom1);
wacom_release_resources(wacom2);
return;
}
static void wacom_remote_destroy_battery(struct wacom *wacom, int index)
{
struct wacom_remote *remote = wacom->remote;
if (remote->remotes[index].battery.battery) {
devres_release_group(&wacom->hdev->dev,
&remote->remotes[index].battery.bat_desc);
remote->remotes[index].battery.battery = NULL;
remote->remotes[index].active_time = 0;
}
}
static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
{
struct wacom_remote *remote = wacom->remote;
u32 serial = remote->remotes[index].serial;
int i;
unsigned long flags;
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
if (remote->remotes[i].serial == serial) {
spin_lock_irqsave(&remote->remote_lock, flags);
remote->remotes[i].registered = false;
spin_unlock_irqrestore(&remote->remote_lock, flags);
wacom_remote_destroy_battery(wacom, i);
if (remote->remotes[i].group.name)
devres_release_group(&wacom->hdev->dev,
&remote->remotes[i]);
remote->remotes[i].serial = 0;
remote->remotes[i].group.name = NULL;
wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
}
}
}
static int wacom_remote_create_one(struct wacom *wacom, u32 serial,
unsigned int index)
{
struct wacom_remote *remote = wacom->remote;
struct device *dev = &wacom->hdev->dev;
int error, k;
/* A remote can pair more than once with an EKR,
* check to make sure this serial isn't already paired.
*/
for (k = 0; k < WACOM_MAX_REMOTES; k++) {
if (remote->remotes[k].serial == serial)
break;
}
if (k < WACOM_MAX_REMOTES) {
remote->remotes[index].serial = serial;
return 0;
}
if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL))
return -ENOMEM;
error = wacom_remote_create_attr_group(wacom, serial, index);
if (error)
goto fail;
remote->remotes[index].input = wacom_allocate_input(wacom);
if (!remote->remotes[index].input) {
error = -ENOMEM;
goto fail;
}
remote->remotes[index].input->uniq = remote->remotes[index].group.name;
remote->remotes[index].input->name = wacom->wacom_wac.pad_name;
if (!remote->remotes[index].input->name) {
error = -EINVAL;
goto fail;
}
error = wacom_setup_pad_input_capabilities(remote->remotes[index].input,
&wacom->wacom_wac);
if (error)
goto fail;
remote->remotes[index].serial = serial;
error = input_register_device(remote->remotes[index].input);
if (error)
goto fail;
error = wacom_led_groups_alloc_and_register_one(
&remote->remotes[index].input->dev,
wacom, index, 3, true);
if (error)
goto fail;
remote->remotes[index].registered = true;
devres_close_group(dev, &remote->remotes[index]);
return 0;
fail:
devres_release_group(dev, &remote->remotes[index]);
remote->remotes[index].serial = 0;
return error;
}
static int wacom_remote_attach_battery(struct wacom *wacom, int index)
{
struct wacom_remote *remote = wacom->remote;
int error;
if (!remote->remotes[index].registered)
return 0;
if (remote->remotes[index].battery.battery)
return 0;
if (!remote->remotes[index].active_time)
return 0;
if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN)
return 0;
error = __wacom_initialize_battery(wacom,
&wacom->remote->remotes[index].battery);
if (error)
return error;
return 0;
}
static void wacom_remote_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, remote_work);
struct wacom_remote *remote = wacom->remote;
ktime_t kt = ktime_get();
struct wacom_remote_work_data remote_work_data;
unsigned long flags;
unsigned int count;
u32 work_serial;
int i;
spin_lock_irqsave(&remote->remote_lock, flags);
count = kfifo_out(&remote->remote_fifo, &remote_work_data,
sizeof(remote_work_data));
if (count != sizeof(remote_work_data)) {
hid_err(wacom->hdev,
"workitem triggered without status available\n");
spin_unlock_irqrestore(&remote->remote_lock, flags);
return;
}
if (!kfifo_is_empty(&remote->remote_fifo))
wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE);
spin_unlock_irqrestore(&remote->remote_lock, flags);
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
work_serial = remote_work_data.remote[i].serial;
if (work_serial) {
if (kt - remote->remotes[i].active_time > WACOM_REMOTE_BATTERY_TIMEOUT
&& remote->remotes[i].active_time != 0)
wacom_remote_destroy_battery(wacom, i);
if (remote->remotes[i].serial == work_serial) {
wacom_remote_attach_battery(wacom, i);
continue;
}
if (remote->remotes[i].serial)
wacom_remote_destroy_one(wacom, i);
wacom_remote_create_one(wacom, work_serial, i);
} else if (remote->remotes[i].serial) {
wacom_remote_destroy_one(wacom, i);
}
}
}
static void wacom_mode_change_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, mode_change_work);
struct wacom_shared *shared = wacom->wacom_wac.shared;
struct wacom *wacom1 = NULL;
struct wacom *wacom2 = NULL;
bool is_direct = wacom->wacom_wac.is_direct_mode;
int error = 0;
if (shared->pen) {
wacom1 = hid_get_drvdata(shared->pen);
wacom_release_resources(wacom1);
hid_hw_stop(wacom1->hdev);
wacom1->wacom_wac.has_mode_change = true;
wacom1->wacom_wac.is_direct_mode = is_direct;
}
if (shared->touch) {
wacom2 = hid_get_drvdata(shared->touch);
wacom_release_resources(wacom2);
hid_hw_stop(wacom2->hdev);
wacom2->wacom_wac.has_mode_change = true;
wacom2->wacom_wac.is_direct_mode = is_direct;
}
if (wacom1) {
error = wacom_parse_and_register(wacom1, false);
if (error)
return;
}
if (wacom2) {
error = wacom_parse_and_register(wacom2, false);
if (error)
return;
}
return;
}
static int wacom_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct wacom *wacom;
struct wacom_wac *wacom_wac;
struct wacom_features *features;
int error;
if (!id->driver_data)
return -EINVAL;
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
/* hid-core sets this quirk for the boot interface */
hdev->quirks &= ~HID_QUIRK_NOGET;
wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL);
if (!wacom)
return -ENOMEM;
hid_set_drvdata(hdev, wacom);
wacom->hdev = hdev;
wacom_wac = &wacom->wacom_wac;
wacom_wac->features = *((struct wacom_features *)id->driver_data);
features = &wacom_wac->features;
if (features->check_for_hid_type && features->hid_type != hdev->type)
return -ENODEV;
error = wacom_devm_kfifo_alloc(wacom);
if (error)
return error;
wacom_wac->hid_data.inputmode = -1;
wacom_wac->mode_report = -1;
if (hid_is_usb(hdev)) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *dev = interface_to_usbdev(intf);
wacom->usbdev = dev;
wacom->intf = intf;
}
mutex_init(&wacom->lock);
INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work);
INIT_WORK(&wacom->wireless_work, wacom_wireless_work);
INIT_WORK(&wacom->battery_work, wacom_battery_work);
INIT_WORK(&wacom->remote_work, wacom_remote_work);
INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work);
timer_setup(&wacom->idleprox_timer, &wacom_idleprox_timeout, TIMER_DEFERRABLE);
/* ask for the report descriptor to be loaded by HID */
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
return error;
}
if (features->type == BOOTLOADER) {
hid_warn(hdev, "Using device in hidraw-only mode");
return hid_hw_start(hdev, HID_CONNECT_HIDRAW);
}
error = wacom_parse_and_register(wacom, false);
if (error)
return error;
if (hdev->bus == BUS_BLUETOOTH) {
error = device_create_file(&hdev->dev, &dev_attr_speed);
if (error)
hid_warn(hdev,
"can't create sysfs speed attribute err: %d\n",
error);
}
wacom_wac->probe_complete = true;
return 0;
}
static void wacom_remove(struct hid_device *hdev)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
hid_hw_close(hdev);
hid_hw_stop(hdev);
cancel_delayed_work_sync(&wacom->init_work);
cancel_work_sync(&wacom->wireless_work);
cancel_work_sync(&wacom->battery_work);
cancel_work_sync(&wacom->remote_work);
cancel_work_sync(&wacom->mode_change_work);
del_timer_sync(&wacom->idleprox_timer);
if (hdev->bus == BUS_BLUETOOTH)
device_remove_file(&hdev->dev, &dev_attr_speed);
/* make sure we don't trigger the LEDs */
wacom_led_groups_release(wacom);
if (wacom->wacom_wac.features.type != REMOTE)
wacom_release_resources(wacom);
}
#ifdef CONFIG_PM
static int wacom_resume(struct hid_device *hdev)
{
struct wacom *wacom = hid_get_drvdata(hdev);
mutex_lock(&wacom->lock);
/* switch to wacom mode first */
_wacom_query_tablet_data(wacom);
wacom_led_control(wacom);
mutex_unlock(&wacom->lock);
return 0;
}
static int wacom_reset_resume(struct hid_device *hdev)
{
return wacom_resume(hdev);
}
#endif /* CONFIG_PM */
static struct hid_driver wacom_driver = {
.name = "wacom",
.id_table = wacom_ids,
.probe = wacom_probe,
.remove = wacom_remove,
.report = wacom_wac_report,
#ifdef CONFIG_PM
.resume = wacom_resume,
.reset_resume = wacom_reset_resume,
#endif
.raw_event = wacom_raw_event,
};
module_hid_driver(wacom_driver);
MODULE_VERSION(DRIVER_VERSION);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/wacom_sys.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Vibration support for Mega World controllers
*
* Copyright 2022 Frank Zago
*
* Derived from hid-zpff.c:
* Copyright (c) 2005, 2006 Anssi Hannula <[email protected]>
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "hid-ids.h"
struct mwctrl_device {
struct hid_report *report;
s32 *weak;
s32 *strong;
};
static int mwctrl_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct mwctrl_device *mwctrl = data;
*mwctrl->strong = effect->u.rumble.strong_magnitude >> 8;
*mwctrl->weak = effect->u.rumble.weak_magnitude >> 8;
hid_hw_request(hid, mwctrl->report, HID_REQ_SET_REPORT);
return 0;
}
static int mwctrl_init(struct hid_device *hid)
{
struct mwctrl_device *mwctrl;
struct hid_report *report;
struct hid_input *hidinput;
struct input_dev *dev;
int error;
int i;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
for (i = 0; i < 4; i++) {
report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1);
if (!report)
return -ENODEV;
}
mwctrl = kzalloc(sizeof(struct mwctrl_device), GFP_KERNEL);
if (!mwctrl)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, mwctrl, mwctrl_play);
if (error) {
kfree(mwctrl);
return error;
}
mwctrl->report = report;
/* Field 0 is always 2, and field 1 is always 0. The original
* windows driver has a 5 bytes command, where the 5th byte is
* a repeat of the 3rd byte, however the device has only 4
* fields. It could be a bug in the driver, or there is a
* different device that needs it.
*/
report->field[0]->value[0] = 0x02;
mwctrl->strong = &report->field[2]->value[0];
mwctrl->weak = &report->field[3]->value[0];
return 0;
}
static int mwctrl_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
ret = mwctrl_init(hdev);
if (ret)
hid_hw_stop(hdev);
return ret;
}
static const struct hid_device_id mwctrl_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_MEGAWORLD,
USB_DEVICE_ID_MEGAWORLD_GAMEPAD) },
{ }
};
MODULE_DEVICE_TABLE(hid, mwctrl_devices);
static struct hid_driver mwctrl_driver = {
.name = "megaworld",
.id_table = mwctrl_devices,
.probe = mwctrl_probe,
};
module_hid_driver(mwctrl_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-megaworld.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat KonePure driver for Linux
*
* Copyright (c) 2012 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat KonePure is a smaller version of KoneXTD with less buttons and lights.
*/
#include <linux/types.h>
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
enum {
KONEPURE_MOUSE_REPORT_NUMBER_BUTTON = 3,
};
struct konepure_mouse_report_button {
uint8_t report_number; /* always KONEPURE_MOUSE_REPORT_NUMBER_BUTTON */
uint8_t zero;
uint8_t type;
uint8_t data1;
uint8_t data2;
uint8_t zero2;
uint8_t unknown[2];
} __packed;
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(actual_profile, 0x05, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_settings, 0x06, 0x1f);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_buttons, 0x07, 0x3b);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(macro, 0x08, 0x0822);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x09, 0x06);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(tcu, 0x0c, 0x04);
ROCCAT_COMMON2_BIN_ATTRIBUTE_R(tcu_image, 0x0c, 0x0404);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0x0f, 0x06);
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x10, 0x10);
static struct bin_attribute *konepure_bin_attrs[] = {
&bin_attr_actual_profile,
&bin_attr_control,
&bin_attr_info,
&bin_attr_talk,
&bin_attr_macro,
&bin_attr_sensor,
&bin_attr_tcu,
&bin_attr_tcu_image,
&bin_attr_profile_settings,
&bin_attr_profile_buttons,
NULL,
};
static const struct attribute_group konepure_group = {
.bin_attrs = konepure_bin_attrs,
};
static const struct attribute_group *konepure_groups[] = {
&konepure_group,
NULL,
};
static const struct class konepure_class = {
.name = "konepure",
.dev_groups = konepure_groups,
};
static int konepure_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct roccat_common2_device *konepure;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE) {
hid_set_drvdata(hdev, NULL);
return 0;
}
konepure = kzalloc(sizeof(*konepure), GFP_KERNEL);
if (!konepure) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, konepure);
retval = roccat_common2_device_init_struct(usb_dev, konepure);
if (retval) {
hid_err(hdev, "couldn't init KonePure device\n");
goto exit_free;
}
retval = roccat_connect(&konepure_class, hdev,
sizeof(struct konepure_mouse_report_button));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
konepure->chrdev_minor = retval;
konepure->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(konepure);
return retval;
}
static void konepure_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *konepure;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return;
konepure = hid_get_drvdata(hdev);
if (konepure->roccat_claimed)
roccat_disconnect(konepure->chrdev_minor);
kfree(konepure);
}
static int konepure_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = konepure_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void konepure_remove(struct hid_device *hdev)
{
konepure_remove_specials(hdev);
hid_hw_stop(hdev);
}
static int konepure_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *konepure = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (data[0] != KONEPURE_MOUSE_REPORT_NUMBER_BUTTON)
return 0;
if (konepure != NULL && konepure->roccat_claimed)
roccat_report_event(konepure->chrdev_minor, data);
return 0;
}
static const struct hid_device_id konepure_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
{ }
};
MODULE_DEVICE_TABLE(hid, konepure_devices);
static struct hid_driver konepure_driver = {
.name = "konepure",
.id_table = konepure_devices,
.probe = konepure_probe,
.remove = konepure_remove,
.raw_event = konepure_raw_event
};
static int __init konepure_init(void)
{
int retval;
retval = class_register(&konepure_class);
if (retval)
return retval;
retval = hid_register_driver(&konepure_driver);
if (retval)
class_unregister(&konepure_class);
return retval;
}
static void __exit konepure_exit(void)
{
hid_unregister_driver(&konepure_driver);
class_unregister(&konepure_class);
}
module_init(konepure_init);
module_exit(konepure_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat KonePure/Optical driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-konepure.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Logitech Gaming Wheels
*
* Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 &
* Speed Force Wireless (WiiWheel)
*
* Copyright (c) 2010 Simon Wood <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include "usbhid/usbhid.h"
#include "hid-lg.h"
#include "hid-lg4ff.h"
#include "hid-ids.h"
#define LG4FF_MMODE_IS_MULTIMODE 0
#define LG4FF_MMODE_SWITCHED 1
#define LG4FF_MMODE_NOT_MULTIMODE 2
#define LG4FF_MODE_NATIVE_IDX 0
#define LG4FF_MODE_DFEX_IDX 1
#define LG4FF_MODE_DFP_IDX 2
#define LG4FF_MODE_G25_IDX 3
#define LG4FF_MODE_DFGT_IDX 4
#define LG4FF_MODE_G27_IDX 5
#define LG4FF_MODE_G29_IDX 6
#define LG4FF_MODE_MAX_IDX 7
#define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX)
#define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX)
#define LG4FF_MODE_DFP BIT(LG4FF_MODE_DFP_IDX)
#define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX)
#define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX)
#define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX)
#define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX)
#define LG4FF_DFEX_TAG "DF-EX"
#define LG4FF_DFEX_NAME "Driving Force / Formula EX"
#define LG4FF_DFP_TAG "DFP"
#define LG4FF_DFP_NAME "Driving Force Pro"
#define LG4FF_G25_TAG "G25"
#define LG4FF_G25_NAME "G25 Racing Wheel"
#define LG4FF_G27_TAG "G27"
#define LG4FF_G27_NAME "G27 Racing Wheel"
#define LG4FF_G29_TAG "G29"
#define LG4FF_G29_NAME "G29 Racing Wheel"
#define LG4FF_DFGT_TAG "DFGT"
#define LG4FF_DFGT_NAME "Driving Force GT"
#define LG4FF_FFEX_REV_MAJ 0x21
#define LG4FF_FFEX_REV_MIN 0x00
static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
static void lg4ff_set_range_g25(struct hid_device *hid, u16 range);
struct lg4ff_wheel_data {
const u32 product_id;
u16 combine;
u16 range;
const u16 min_range;
const u16 max_range;
#ifdef CONFIG_LEDS_CLASS
u8 led_state;
struct led_classdev *led[5];
#endif
const u32 alternate_modes;
const char * const real_tag;
const char * const real_name;
const u16 real_product_id;
void (*set_range)(struct hid_device *hid, u16 range);
};
struct lg4ff_device_entry {
spinlock_t report_lock; /* Protect output HID report */
struct hid_report *report;
struct lg4ff_wheel_data wdata;
};
static const signed short lg4ff_wheel_effects[] = {
FF_CONSTANT,
FF_AUTOCENTER,
-1
};
static const signed short no_wheel_effects[] = {
-1
};
struct lg4ff_wheel {
const u32 product_id;
const signed short *ff_effects;
const u16 min_range;
const u16 max_range;
void (*set_range)(struct hid_device *hid, u16 range);
};
struct lg4ff_compat_mode_switch {
const u8 cmd_count; /* Number of commands to send */
const u8 cmd[];
};
struct lg4ff_wheel_ident_info {
const u32 modes;
const u16 mask;
const u16 result;
const u16 real_product_id;
};
struct lg4ff_multimode_wheel {
const u16 product_id;
const u32 alternate_modes;
const char *real_tag;
const char *real_name;
};
struct lg4ff_alternate_mode {
const u16 product_id;
const char *tag;
const char *name;
};
static const struct lg4ff_wheel lg4ff_devices[] = {
{USB_DEVICE_ID_LOGITECH_WINGMAN_FG, no_wheel_effects, 40, 180, NULL},
{USB_DEVICE_ID_LOGITECH_WINGMAN_FFG, lg4ff_wheel_effects, 40, 180, NULL},
{USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL},
{USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL},
{USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp},
{USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
{USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
{USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
{USB_DEVICE_ID_LOGITECH_G29_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},
{USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL},
{USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}
};
static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = {
{USB_DEVICE_ID_LOGITECH_DFP_WHEEL,
LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
LG4FF_DFP_TAG, LG4FF_DFP_NAME},
{USB_DEVICE_ID_LOGITECH_G25_WHEEL,
LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
LG4FF_G25_TAG, LG4FF_G25_NAME},
{USB_DEVICE_ID_LOGITECH_DFGT_WHEEL,
LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
LG4FF_DFGT_TAG, LG4FF_DFGT_NAME},
{USB_DEVICE_ID_LOGITECH_G27_WHEEL,
LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
LG4FF_G27_TAG, LG4FF_G27_NAME},
{USB_DEVICE_ID_LOGITECH_G29_WHEEL,
LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
LG4FF_G29_TAG, LG4FF_G29_NAME},
};
static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = {
[LG4FF_MODE_NATIVE_IDX] = {0, "native", ""},
[LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME},
[LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME},
[LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME},
[LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME},
[LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME},
[LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME},
};
/* Multimode wheel identificators */
static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = {
LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xf000,
0x1000,
USB_DEVICE_ID_LOGITECH_DFP_WHEEL
};
static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = {
LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xff00,
0x1200,
USB_DEVICE_ID_LOGITECH_G25_WHEEL
};
static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = {
LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xfff0,
0x1230,
USB_DEVICE_ID_LOGITECH_G27_WHEEL
};
static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = {
LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xff00,
0x1300,
USB_DEVICE_ID_LOGITECH_DFGT_WHEEL
};
static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = {
LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xfff8,
0x1350,
USB_DEVICE_ID_LOGITECH_G29_WHEEL
};
static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = {
LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,
0xff00,
0x8900,
USB_DEVICE_ID_LOGITECH_G29_WHEEL
};
/* Multimode wheel identification checklists */
static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = {
&lg4ff_g29_ident_info,
&lg4ff_g29_ident_info2,
&lg4ff_dfgt_ident_info,
&lg4ff_g27_ident_info,
&lg4ff_g25_ident_info,
&lg4ff_dfp_ident_info
};
/* Compatibility mode switching commands */
/* EXT_CMD9 - Understood by G27 and DFGT */
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfex = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DF-EX with detach */
};
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfp = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x01, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFP with detach */
};
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g25 = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x02, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G25 with detach */
};
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfgt = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFGT with detach */
};
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G27 with detach */
};
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = {
2,
{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */
0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00} /* Switch mode to G29 with detach */
};
/* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = {
1,
{0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
};
/* EXT_CMD16 - Understood by G25 and G27 */
static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext16_g25 = {
1,
{0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00}
};
/* Recalculates X axis value accordingly to currently selected range */
static s32 lg4ff_adjust_dfp_x_axis(s32 value, u16 range)
{
u16 max_range;
s32 new_value;
if (range == 900)
return value;
else if (range == 200)
return value;
else if (range < 200)
max_range = 200;
else
max_range = 900;
new_value = 8192 + mult_frac(value - 8192, max_range, range);
if (new_value < 0)
return 0;
else if (new_value > 16383)
return 16383;
else
return new_value;
}
int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data)
{
struct lg4ff_device_entry *entry = drv_data->device_props;
s32 new_value = 0;
if (!entry) {
hid_err(hid, "Device properties not found");
return 0;
}
switch (entry->wdata.product_id) {
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
switch (usage->code) {
case ABS_X:
new_value = lg4ff_adjust_dfp_x_axis(value, entry->wdata.range);
input_event(field->hidinput->input, usage->type, usage->code, new_value);
return 1;
default:
return 0;
}
default:
return 0;
}
}
int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size, struct lg_drv_data *drv_data)
{
int offset;
struct lg4ff_device_entry *entry = drv_data->device_props;
if (!entry)
return 0;
/* adjust HID report present combined pedals data */
if (entry->wdata.combine) {
switch (entry->wdata.product_id) {
case USB_DEVICE_ID_LOGITECH_WHEEL:
rd[5] = rd[3];
rd[6] = 0x7F;
return 1;
case USB_DEVICE_ID_LOGITECH_WINGMAN_FG:
case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
rd[4] = rd[3];
rd[5] = 0x7F;
return 1;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
rd[5] = rd[4];
rd[6] = 0x7F;
return 1;
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
offset = 5;
break;
case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
offset = 6;
break;
case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
offset = 3;
break;
default:
return 0;
}
/* Compute a combined axis when wheel does not supply it */
rd[offset] = (0xFF + rd[offset] - rd[offset+1]) >> 1;
rd[offset+1] = 0x7F;
return 1;
}
return 0;
}
static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel,
const struct lg4ff_multimode_wheel *mmode_wheel,
const u16 real_product_id)
{
u32 alternate_modes = 0;
const char *real_tag = NULL;
const char *real_name = NULL;
if (mmode_wheel) {
alternate_modes = mmode_wheel->alternate_modes;
real_tag = mmode_wheel->real_tag;
real_name = mmode_wheel->real_name;
}
{
struct lg4ff_wheel_data t_wdata = { .product_id = wheel->product_id,
.real_product_id = real_product_id,
.combine = 0,
.min_range = wheel->min_range,
.max_range = wheel->max_range,
.set_range = wheel->set_range,
.alternate_modes = alternate_modes,
.real_tag = real_tag,
.real_name = real_name };
memcpy(wdata, &t_wdata, sizeof(t_wdata));
}
}
static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
s32 *value;
int x;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return -EINVAL;
}
value = entry->report->field[0]->value;
#define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0)
switch (effect->type) {
case FF_CONSTANT:
x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */
CLAMP(x);
spin_lock_irqsave(&entry->report_lock, flags);
if (x == 0x80) {
/* De-activate force in slot-1*/
value[0] = 0x13;
value[1] = 0x00;
value[2] = 0x00;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
return 0;
}
value[0] = 0x11; /* Slot 1 */
value[1] = 0x08;
value[2] = x;
value[3] = 0x80;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
break;
}
return 0;
}
/* Sends default autocentering command compatible with
* all wheels except Formula Force EX */
static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
s32 *value;
u32 expand_a, expand_b;
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return;
}
value = entry->report->field[0]->value;
/* De-activate Auto-Center */
spin_lock_irqsave(&entry->report_lock, flags);
if (magnitude == 0) {
value[0] = 0xf5;
value[1] = 0x00;
value[2] = 0x00;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
return;
}
if (magnitude <= 0xaaaa) {
expand_a = 0x0c * magnitude;
expand_b = 0x80 * magnitude;
} else {
expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa);
expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa);
}
/* Adjust for non-MOMO wheels */
switch (entry->wdata.product_id) {
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
break;
default:
expand_a = expand_a >> 1;
break;
}
value[0] = 0xfe;
value[1] = 0x0d;
value[2] = expand_a / 0xaaaa;
value[3] = expand_a / 0xaaaa;
value[4] = expand_b / 0xaaaa;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
/* Activate Auto-Center */
value[0] = 0x14;
value[1] = 0x00;
value[2] = 0x00;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
}
/* Sends autocentering command compatible with Formula Force EX */
static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
s32 *value;
magnitude = magnitude * 90 / 65535;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return;
}
value = entry->report->field[0]->value;
spin_lock_irqsave(&entry->report_lock, flags);
value[0] = 0xfe;
value[1] = 0x03;
value[2] = magnitude >> 14;
value[3] = magnitude >> 14;
value[4] = magnitude;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
}
/* Sends command to set range compatible with G25/G27/Driving Force GT */
static void lg4ff_set_range_g25(struct hid_device *hid, u16 range)
{
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
s32 *value;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return;
}
value = entry->report->field[0]->value;
dbg_hid("G25/G27/DFGT: setting range to %u\n", range);
spin_lock_irqsave(&entry->report_lock, flags);
value[0] = 0xf8;
value[1] = 0x81;
value[2] = range & 0x00ff;
value[3] = (range & 0xff00) >> 8;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
}
/* Sends commands to set range compatible with Driving Force Pro wheel */
static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range)
{
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
int start_left, start_right, full_range;
s32 *value;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return;
}
value = entry->report->field[0]->value;
dbg_hid("Driving Force Pro: setting range to %u\n", range);
/* Prepare "coarse" limit command */
spin_lock_irqsave(&entry->report_lock, flags);
value[0] = 0xf8;
value[1] = 0x00; /* Set later */
value[2] = 0x00;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
if (range > 200) {
value[1] = 0x03;
full_range = 900;
} else {
value[1] = 0x02;
full_range = 200;
}
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
/* Prepare "fine" limit command */
value[0] = 0x81;
value[1] = 0x0b;
value[2] = 0x00;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
if (range == 200 || range == 900) { /* Do not apply any fine limit */
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
return;
}
/* Construct fine limit command */
start_left = (((full_range - range + 1) * 2047) / full_range);
start_right = 0xfff - start_left;
value[2] = start_left >> 4;
value[3] = start_right >> 4;
value[4] = 0xff;
value[5] = (start_right & 0xe) << 4 | (start_left & 0xe);
value[6] = 0xff;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
}
static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id)
{
switch (real_product_id) {
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
switch (target_product_id) {
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
return &lg4ff_mode_switch_ext01_dfp;
/* DFP can only be switched to its native mode */
default:
return NULL;
}
break;
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
switch (target_product_id) {
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
return &lg4ff_mode_switch_ext01_dfp;
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
return &lg4ff_mode_switch_ext16_g25;
/* G25 can only be switched to DFP mode or its native mode */
default:
return NULL;
}
break;
case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
switch (target_product_id) {
case USB_DEVICE_ID_LOGITECH_WHEEL:
return &lg4ff_mode_switch_ext09_dfex;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
return &lg4ff_mode_switch_ext09_dfp;
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
return &lg4ff_mode_switch_ext09_g25;
case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
return &lg4ff_mode_switch_ext09_g27;
/* G27 can only be switched to DF-EX, DFP, G25 or its native mode */
default:
return NULL;
}
break;
case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
switch (target_product_id) {
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
return &lg4ff_mode_switch_ext09_dfp;
case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
return &lg4ff_mode_switch_ext09_dfgt;
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
return &lg4ff_mode_switch_ext09_g25;
case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
return &lg4ff_mode_switch_ext09_g27;
case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
return &lg4ff_mode_switch_ext09_g29;
/* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */
default:
return NULL;
}
break;
case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
switch (target_product_id) {
case USB_DEVICE_ID_LOGITECH_WHEEL:
return &lg4ff_mode_switch_ext09_dfex;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
return &lg4ff_mode_switch_ext09_dfp;
case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
return &lg4ff_mode_switch_ext09_dfgt;
/* DFGT can only be switched to DF-EX, DFP or its native mode */
default:
return NULL;
}
break;
/* No other wheels have multiple modes */
default:
return NULL;
}
}
static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s)
{
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
unsigned long flags;
s32 *value;
u8 i;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return -EINVAL;
}
value = entry->report->field[0]->value;
spin_lock_irqsave(&entry->report_lock, flags);
for (i = 0; i < s->cmd_count; i++) {
u8 j;
for (j = 0; j < 7; j++)
value[j] = s->cmd[j + (7*i)];
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
}
spin_unlock_irqrestore(&entry->report_lock, flags);
hid_hw_wait(hid);
return 0;
}
static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
ssize_t count = 0;
int i;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return 0;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return 0;
}
if (!entry->wdata.real_name) {
hid_err(hid, "NULL pointer to string\n");
return 0;
}
for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) {
if (entry->wdata.alternate_modes & BIT(i)) {
/* Print tag and full name */
count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s",
lg4ff_alternate_modes[i].tag,
!lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name);
if (count >= PAGE_SIZE - 1)
return count;
/* Mark the currently active mode with an asterisk */
if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id ||
(lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id))
count += scnprintf(buf + count, PAGE_SIZE - count, " *\n");
else
count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
if (count >= PAGE_SIZE - 1)
return count;
}
}
return count;
}
static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
const struct lg4ff_compat_mode_switch *s;
u16 target_product_id = 0;
int i, ret;
char *lbuf;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return -EINVAL;
}
/* Allow \n at the end of the input parameter */
lbuf = kasprintf(GFP_KERNEL, "%s", buf);
if (!lbuf)
return -ENOMEM;
i = strlen(lbuf);
if (i == 0) {
kfree(lbuf);
return -EINVAL;
}
if (lbuf[i-1] == '\n') {
if (i == 1) {
kfree(lbuf);
return -EINVAL;
}
lbuf[i-1] = '\0';
}
for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) {
const u16 mode_product_id = lg4ff_alternate_modes[i].product_id;
const char *tag = lg4ff_alternate_modes[i].tag;
if (entry->wdata.alternate_modes & BIT(i)) {
if (!strcmp(tag, lbuf)) {
if (!mode_product_id)
target_product_id = entry->wdata.real_product_id;
else
target_product_id = mode_product_id;
break;
}
}
}
if (i == LG4FF_MODE_MAX_IDX) {
hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf);
kfree(lbuf);
return -EINVAL;
}
kfree(lbuf); /* Not needed anymore */
if (target_product_id == entry->wdata.product_id) /* Nothing to do */
return count;
/* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */
if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) {
hid_info(hid, "\"%s\" cannot be switched to \"DF-EX\" mode. Load the \"hid_logitech\" module with \"lg4ff_no_autoswitch=1\" parameter set and try again\n",
entry->wdata.real_name);
return -EINVAL;
}
/* Take care of hardware limitations */
if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) &&
entry->wdata.product_id > target_product_id) {
hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name);
return -EINVAL;
}
s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id);
if (!s) {
hid_err(hid, "Invalid target product ID %X\n", target_product_id);
return -EINVAL;
}
ret = lg4ff_switch_compatibility_mode(hid, s);
return (ret == 0 ? count : ret);
}
static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store);
static ssize_t lg4ff_combine_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
size_t count;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return 0;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return 0;
}
count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.combine);
return count;
}
static ssize_t lg4ff_combine_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
u16 combine = simple_strtoul(buf, NULL, 10);
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return -EINVAL;
}
if (combine > 1)
combine = 1;
entry->wdata.combine = combine;
return count;
}
static DEVICE_ATTR(combine_pedals, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_combine_show, lg4ff_combine_store);
/* Export the currently set range of the wheel */
static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
size_t count;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return 0;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return 0;
}
count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range);
return count;
}
/* Set range to user specified value, call appropriate function
* according to the type of the wheel */
static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
u16 range = simple_strtoul(buf, NULL, 10);
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return -EINVAL;
}
if (range == 0)
range = entry->wdata.max_range;
/* Check if the wheel supports range setting
* and that the range is within limits for the wheel */
if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) {
entry->wdata.set_range(hid, range);
entry->wdata.range = range;
}
return count;
}
static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store);
static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct hid_device *hid = to_hid_device(dev);
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
size_t count;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return 0;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return 0;
}
if (!entry->wdata.real_tag || !entry->wdata.real_name) {
hid_err(hid, "NULL pointer to string\n");
return 0;
}
count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name);
return count;
}
static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
/* Real ID is a read-only value */
return -EPERM;
}
static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store);
#ifdef CONFIG_LEDS_CLASS
static void lg4ff_set_leds(struct hid_device *hid, u8 leds)
{
struct lg_drv_data *drv_data;
struct lg4ff_device_entry *entry;
unsigned long flags;
s32 *value;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return;
}
value = entry->report->field[0]->value;
spin_lock_irqsave(&entry->report_lock, flags);
value[0] = 0xf8;
value[1] = 0x12;
value[2] = leds;
value[3] = 0x00;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&entry->report_lock, flags);
}
static void lg4ff_led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct lg_drv_data *drv_data = hid_get_drvdata(hid);
struct lg4ff_device_entry *entry;
int i, state = 0;
if (!drv_data) {
hid_err(hid, "Device data not found.");
return;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found.");
return;
}
for (i = 0; i < 5; i++) {
if (led_cdev != entry->wdata.led[i])
continue;
state = (entry->wdata.led_state >> i) & 1;
if (value == LED_OFF && state) {
entry->wdata.led_state &= ~(1 << i);
lg4ff_set_leds(hid, entry->wdata.led_state);
} else if (value != LED_OFF && !state) {
entry->wdata.led_state |= 1 << i;
lg4ff_set_leds(hid, entry->wdata.led_state);
}
break;
}
}
static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct lg_drv_data *drv_data = hid_get_drvdata(hid);
struct lg4ff_device_entry *entry;
int i, value = 0;
if (!drv_data) {
hid_err(hid, "Device data not found.");
return LED_OFF;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found.");
return LED_OFF;
}
for (i = 0; i < 5; i++)
if (led_cdev == entry->wdata.led[i]) {
value = (entry->wdata.led_state >> i) & 1;
break;
}
return value ? LED_FULL : LED_OFF;
}
#endif
static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice)
{
u32 current_mode;
int i;
/* identify current mode from USB PID */
for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) {
dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id);
if (reported_product_id == lg4ff_alternate_modes[i].product_id)
break;
}
if (i == ARRAY_SIZE(lg4ff_alternate_modes))
return 0;
current_mode = BIT(i);
for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) {
const u16 mask = lg4ff_main_checklist[i]->mask;
const u16 result = lg4ff_main_checklist[i]->result;
const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id;
if ((current_mode & lg4ff_main_checklist[i]->modes) && \
(bcdDevice & mask) == result) {
dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id);
return real_product_id;
}
}
/* No match found. This is either Driving Force or an unknown
* wheel model, do not touch it */
dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice);
return 0;
}
static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice)
{
const u16 reported_product_id = hid->product;
int ret;
*real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice);
/* Probed wheel is not a multimode wheel */
if (!*real_product_id) {
*real_product_id = reported_product_id;
dbg_hid("Wheel is not a multimode wheel\n");
return LG4FF_MMODE_NOT_MULTIMODE;
}
/* Switch from "Driving Force" mode to native mode automatically.
* Otherwise keep the wheel in its current mode */
if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL &&
reported_product_id != *real_product_id &&
!lg4ff_no_autoswitch) {
const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id);
if (!s) {
hid_err(hid, "Invalid product id %X\n", *real_product_id);
return LG4FF_MMODE_NOT_MULTIMODE;
}
ret = lg4ff_switch_compatibility_mode(hid, s);
if (ret) {
/* Wheel could not have been switched to native mode,
* leave it in "Driving Force" mode and continue */
hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret);
return LG4FF_MMODE_IS_MULTIMODE;
}
return LG4FF_MMODE_SWITCHED;
}
return LG4FF_MMODE_IS_MULTIMODE;
}
int lg4ff_init(struct hid_device *hid)
{
struct hid_input *hidinput;
struct input_dev *dev;
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor);
const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice);
const struct lg4ff_multimode_wheel *mmode_wheel = NULL;
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
int error, i, j;
int mmode_ret, mmode_idx = -1;
u16 real_product_id;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
/* Check that the report looks ok */
if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
return -1;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Cannot add device, private driver data not allocated\n");
return -1;
}
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
spin_lock_init(&entry->report_lock);
entry->report = report;
drv_data->device_props = entry;
/* Check if a multimode wheel has been connected and
* handle it appropriately */
mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice);
/* Wheel has been told to switch to native mode. There is no point in going on
* with the initialization as the wheel will do a USB reset when it switches mode
*/
if (mmode_ret == LG4FF_MMODE_SWITCHED)
return 0;
else if (mmode_ret < 0) {
hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret);
error = mmode_ret;
goto err_init;
}
/* Check what wheel has been connected */
for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) {
if (hid->product == lg4ff_devices[i].product_id) {
dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id);
break;
}
}
if (i == ARRAY_SIZE(lg4ff_devices)) {
hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. "
"Please report this as a bug to LKML, Simon Wood <[email protected]> or "
"Michal Maly <[email protected]>\n");
error = -1;
goto err_init;
}
if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) {
for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) {
if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id)
break;
}
if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) {
hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id);
error = -1;
goto err_init;
}
}
/* Set supported force feedback capabilities */
for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++)
set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit);
error = input_ff_create_memless(dev, NULL, lg4ff_play);
if (error)
goto err_init;
/* Initialize device properties */
if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) {
BUG_ON(mmode_idx == -1);
mmode_wheel = &lg4ff_multimode_wheels[mmode_idx];
}
lg4ff_init_wheel_data(&entry->wdata, &lg4ff_devices[i], mmode_wheel, real_product_id);
/* Check if autocentering is available and
* set the centering force to zero by default */
if (test_bit(FF_AUTOCENTER, dev->ffbit)) {
/* Formula Force EX expects different autocentering command */
if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ &&
(bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN)
dev->ff->set_autocenter = lg4ff_set_autocenter_ffex;
else
dev->ff->set_autocenter = lg4ff_set_autocenter_default;
dev->ff->set_autocenter(dev, 0);
}
/* Create sysfs interface */
error = device_create_file(&hid->dev, &dev_attr_combine_pedals);
if (error)
hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error);
error = device_create_file(&hid->dev, &dev_attr_range);
if (error)
hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error);
if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) {
error = device_create_file(&hid->dev, &dev_attr_real_id);
if (error)
hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error);
error = device_create_file(&hid->dev, &dev_attr_alternate_modes);
if (error)
hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error);
}
dbg_hid("sysfs interface created\n");
/* Set the maximum range to start with */
entry->wdata.range = entry->wdata.max_range;
if (entry->wdata.set_range)
entry->wdata.set_range(hid, entry->wdata.range);
#ifdef CONFIG_LEDS_CLASS
/* register led subsystem - G27/G29 only */
entry->wdata.led_state = 0;
for (j = 0; j < 5; j++)
entry->wdata.led[j] = NULL;
if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL ||
lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) {
struct led_classdev *led;
size_t name_sz;
char *name;
lg4ff_set_leds(hid, 0);
name_sz = strlen(dev_name(&hid->dev)) + 8;
for (j = 0; j < 5; j++) {
led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
if (!led) {
hid_err(hid, "can't allocate memory for LED %d\n", j);
goto err_leds;
}
name = (void *)(&led[1]);
snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = lg4ff_led_get_brightness;
led->brightness_set = lg4ff_led_set_brightness;
entry->wdata.led[j] = led;
error = led_classdev_register(&hid->dev, led);
if (error) {
hid_err(hid, "failed to register LED %d. Aborting.\n", j);
err_leds:
/* Deregister LEDs (if any) */
for (j = 0; j < 5; j++) {
led = entry->wdata.led[j];
entry->wdata.led[j] = NULL;
if (!led)
continue;
led_classdev_unregister(led);
kfree(led);
}
goto out; /* Let the driver continue without LEDs */
}
}
}
out:
#endif
hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n");
return 0;
err_init:
drv_data->device_props = NULL;
kfree(entry);
return error;
}
int lg4ff_deinit(struct hid_device *hid)
{
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Error while deinitializing device, no private driver data.\n");
return -1;
}
entry = drv_data->device_props;
if (!entry)
goto out; /* Nothing more to do */
/* Multimode devices will have at least the "MODE_NATIVE" bit set */
if (entry->wdata.alternate_modes) {
device_remove_file(&hid->dev, &dev_attr_real_id);
device_remove_file(&hid->dev, &dev_attr_alternate_modes);
}
device_remove_file(&hid->dev, &dev_attr_combine_pedals);
device_remove_file(&hid->dev, &dev_attr_range);
#ifdef CONFIG_LEDS_CLASS
{
int j;
struct led_classdev *led;
/* Deregister LEDs (if any) */
for (j = 0; j < 5; j++) {
led = entry->wdata.led[j];
entry->wdata.led[j] = NULL;
if (!led)
continue;
led_classdev_unregister(led);
kfree(led);
}
}
#endif
drv_data->device_props = NULL;
kfree(entry);
out:
dbg_hid("Device successfully unregistered\n");
return 0;
}
| linux-master | drivers/hid/hid-lg4ff.c |
// SPDX-License-Identifier: GPL-2.0-only
/***************************************************************************
* Copyright (C) 2010-2012 by Bruno Prémont <[email protected]> *
* *
* Based on Logitech G13 driver (v0.4) *
* Copyright (C) 2009 by Rick L. Vinyard, Jr. <[email protected]> *
* *
***************************************************************************/
#include <linux/hid.h>
#include <linux/vmalloc.h>
#include <linux/fb.h>
#include <linux/module.h>
#include "hid-picolcd.h"
/* Framebuffer
*
* The PicoLCD use a Topway LCD module of 256x64 pixel
* This display area is tiled over 4 controllers with 8 tiles
* each. Each tile has 8x64 pixel, each data byte representing
* a 1-bit wide vertical line of the tile.
*
* The display can be updated at a tile granularity.
*
* Chip 1 Chip 2 Chip 3 Chip 4
* +----------------+----------------+----------------+----------------+
* | Tile 1 | Tile 1 | Tile 1 | Tile 1 |
* +----------------+----------------+----------------+----------------+
* | Tile 2 | Tile 2 | Tile 2 | Tile 2 |
* +----------------+----------------+----------------+----------------+
* ...
* +----------------+----------------+----------------+----------------+
* | Tile 8 | Tile 8 | Tile 8 | Tile 8 |
* +----------------+----------------+----------------+----------------+
*/
#define PICOLCDFB_NAME "picolcdfb"
#define PICOLCDFB_WIDTH (256)
#define PICOLCDFB_HEIGHT (64)
#define PICOLCDFB_SIZE (PICOLCDFB_WIDTH * PICOLCDFB_HEIGHT / 8)
#define PICOLCDFB_UPDATE_RATE_LIMIT 10
#define PICOLCDFB_UPDATE_RATE_DEFAULT 2
/* Framebuffer visual structures */
static const struct fb_fix_screeninfo picolcdfb_fix = {
.id = PICOLCDFB_NAME,
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_MONO01,
.xpanstep = 0,
.ypanstep = 0,
.ywrapstep = 0,
.line_length = PICOLCDFB_WIDTH / 8,
.accel = FB_ACCEL_NONE,
};
static const struct fb_var_screeninfo picolcdfb_var = {
.xres = PICOLCDFB_WIDTH,
.yres = PICOLCDFB_HEIGHT,
.xres_virtual = PICOLCDFB_WIDTH,
.yres_virtual = PICOLCDFB_HEIGHT,
.width = 103,
.height = 26,
.bits_per_pixel = 1,
.grayscale = 1,
.red = {
.offset = 0,
.length = 1,
.msb_right = 0,
},
.green = {
.offset = 0,
.length = 1,
.msb_right = 0,
},
.blue = {
.offset = 0,
.length = 1,
.msb_right = 0,
},
.transp = {
.offset = 0,
.length = 0,
.msb_right = 0,
},
};
/* Send a given tile to PicoLCD */
static int picolcd_fb_send_tile(struct picolcd_data *data, u8 *vbitmap,
int chip, int tile)
{
struct hid_report *report1, *report2;
unsigned long flags;
u8 *tdata;
int i;
report1 = picolcd_out_report(REPORT_LCD_CMD_DATA, data->hdev);
if (!report1 || report1->maxfield != 1)
return -ENODEV;
report2 = picolcd_out_report(REPORT_LCD_DATA, data->hdev);
if (!report2 || report2->maxfield != 1)
return -ENODEV;
spin_lock_irqsave(&data->lock, flags);
if ((data->status & PICOLCD_FAILED)) {
spin_unlock_irqrestore(&data->lock, flags);
return -ENODEV;
}
hid_set_field(report1->field[0], 0, chip << 2);
hid_set_field(report1->field[0], 1, 0x02);
hid_set_field(report1->field[0], 2, 0x00);
hid_set_field(report1->field[0], 3, 0x00);
hid_set_field(report1->field[0], 4, 0xb8 | tile);
hid_set_field(report1->field[0], 5, 0x00);
hid_set_field(report1->field[0], 6, 0x00);
hid_set_field(report1->field[0], 7, 0x40);
hid_set_field(report1->field[0], 8, 0x00);
hid_set_field(report1->field[0], 9, 0x00);
hid_set_field(report1->field[0], 10, 32);
hid_set_field(report2->field[0], 0, (chip << 2) | 0x01);
hid_set_field(report2->field[0], 1, 0x00);
hid_set_field(report2->field[0], 2, 0x00);
hid_set_field(report2->field[0], 3, 32);
tdata = vbitmap + (tile * 4 + chip) * 64;
for (i = 0; i < 64; i++)
if (i < 32)
hid_set_field(report1->field[0], 11 + i, tdata[i]);
else
hid_set_field(report2->field[0], 4 + i - 32, tdata[i]);
hid_hw_request(data->hdev, report1, HID_REQ_SET_REPORT);
hid_hw_request(data->hdev, report2, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
return 0;
}
/* Translate a single tile*/
static int picolcd_fb_update_tile(u8 *vbitmap, const u8 *bitmap, int bpp,
int chip, int tile)
{
int i, b, changed = 0;
u8 tdata[64];
u8 *vdata = vbitmap + (tile * 4 + chip) * 64;
if (bpp == 1) {
for (b = 7; b >= 0; b--) {
const u8 *bdata = bitmap + tile * 256 + chip * 8 + b * 32;
for (i = 0; i < 64; i++) {
tdata[i] <<= 1;
tdata[i] |= (bdata[i/8] >> (i % 8)) & 0x01;
}
}
} else if (bpp == 8) {
for (b = 7; b >= 0; b--) {
const u8 *bdata = bitmap + (tile * 256 + chip * 8 + b * 32) * 8;
for (i = 0; i < 64; i++) {
tdata[i] <<= 1;
tdata[i] |= (bdata[i] & 0x80) ? 0x01 : 0x00;
}
}
} else {
/* Oops, we should never get here! */
WARN_ON(1);
return 0;
}
for (i = 0; i < 64; i++)
if (tdata[i] != vdata[i]) {
changed = 1;
vdata[i] = tdata[i];
}
return changed;
}
void picolcd_fb_refresh(struct picolcd_data *data)
{
if (data->fb_info)
schedule_delayed_work(&data->fb_info->deferred_work, 0);
}
/* Reconfigure LCD display */
int picolcd_fb_reset(struct picolcd_data *data, int clear)
{
struct hid_report *report = picolcd_out_report(REPORT_LCD_CMD, data->hdev);
struct picolcd_fb_data *fbdata = data->fb_info->par;
int i, j;
unsigned long flags;
static const u8 mapcmd[8] = { 0x00, 0x02, 0x00, 0x64, 0x3f, 0x00, 0x64, 0xc0 };
if (!report || report->maxfield != 1)
return -ENODEV;
spin_lock_irqsave(&data->lock, flags);
for (i = 0; i < 4; i++) {
for (j = 0; j < report->field[0]->maxusage; j++)
if (j == 0)
hid_set_field(report->field[0], j, i << 2);
else if (j < sizeof(mapcmd))
hid_set_field(report->field[0], j, mapcmd[j]);
else
hid_set_field(report->field[0], j, 0);
hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
}
spin_unlock_irqrestore(&data->lock, flags);
if (clear) {
memset(fbdata->vbitmap, 0, PICOLCDFB_SIZE);
memset(fbdata->bitmap, 0, PICOLCDFB_SIZE*fbdata->bpp);
}
fbdata->force = 1;
/* schedule first output of framebuffer */
if (fbdata->ready)
schedule_delayed_work(&data->fb_info->deferred_work, 0);
else
fbdata->ready = 1;
return 0;
}
/* Update fb_vbitmap from the screen_buffer and send changed tiles to device */
static void picolcd_fb_update(struct fb_info *info)
{
int chip, tile, n;
unsigned long flags;
struct picolcd_fb_data *fbdata = info->par;
struct picolcd_data *data;
mutex_lock(&info->lock);
spin_lock_irqsave(&fbdata->lock, flags);
if (!fbdata->ready && fbdata->picolcd)
picolcd_fb_reset(fbdata->picolcd, 0);
spin_unlock_irqrestore(&fbdata->lock, flags);
/*
* Translate the framebuffer into the format needed by the PicoLCD.
* See display layout above.
* Do this one tile after the other and push those tiles that changed.
*
* Wait for our IO to complete as otherwise we might flood the queue!
*/
n = 0;
for (chip = 0; chip < 4; chip++)
for (tile = 0; tile < 8; tile++) {
if (!fbdata->force && !picolcd_fb_update_tile(
fbdata->vbitmap, fbdata->bitmap,
fbdata->bpp, chip, tile))
continue;
n += 2;
if (n >= HID_OUTPUT_FIFO_SIZE / 2) {
spin_lock_irqsave(&fbdata->lock, flags);
data = fbdata->picolcd;
spin_unlock_irqrestore(&fbdata->lock, flags);
mutex_unlock(&info->lock);
if (!data)
return;
hid_hw_wait(data->hdev);
mutex_lock(&info->lock);
n = 0;
}
spin_lock_irqsave(&fbdata->lock, flags);
data = fbdata->picolcd;
spin_unlock_irqrestore(&fbdata->lock, flags);
if (!data || picolcd_fb_send_tile(data,
fbdata->vbitmap, chip, tile))
goto out;
}
fbdata->force = false;
if (n) {
spin_lock_irqsave(&fbdata->lock, flags);
data = fbdata->picolcd;
spin_unlock_irqrestore(&fbdata->lock, flags);
mutex_unlock(&info->lock);
if (data)
hid_hw_wait(data->hdev);
return;
}
out:
mutex_unlock(&info->lock);
}
/* Stub to call the system default and update the image on the picoLCD */
static void picolcd_fb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
if (!info->par)
return;
sys_fillrect(info, rect);
schedule_delayed_work(&info->deferred_work, 0);
}
/* Stub to call the system default and update the image on the picoLCD */
static void picolcd_fb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
if (!info->par)
return;
sys_copyarea(info, area);
schedule_delayed_work(&info->deferred_work, 0);
}
/* Stub to call the system default and update the image on the picoLCD */
static void picolcd_fb_imageblit(struct fb_info *info, const struct fb_image *image)
{
if (!info->par)
return;
sys_imageblit(info, image);
schedule_delayed_work(&info->deferred_work, 0);
}
/*
* this is the slow path from userspace. they can seek and write to
* the fb. it's inefficient to do anything less than a full screen draw
*/
static ssize_t picolcd_fb_write(struct fb_info *info, const char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t ret;
if (!info->par)
return -ENODEV;
ret = fb_sys_write(info, buf, count, ppos);
if (ret >= 0)
schedule_delayed_work(&info->deferred_work, 0);
return ret;
}
static int picolcd_fb_blank(int blank, struct fb_info *info)
{
/* We let fb notification do this for us via lcd/backlight device */
return 0;
}
static void picolcd_fb_destroy(struct fb_info *info)
{
struct picolcd_fb_data *fbdata = info->par;
/* make sure no work is deferred */
fb_deferred_io_cleanup(info);
/* No thridparty should ever unregister our framebuffer! */
WARN_ON(fbdata->picolcd != NULL);
vfree((u8 *)info->fix.smem_start);
framebuffer_release(info);
}
static int picolcd_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
__u32 bpp = var->bits_per_pixel;
__u32 activate = var->activate;
/* only allow 1/8 bit depth (8-bit is grayscale) */
*var = picolcdfb_var;
var->activate = activate;
if (bpp >= 8) {
var->bits_per_pixel = 8;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
} else {
var->bits_per_pixel = 1;
var->red.length = 1;
var->green.length = 1;
var->blue.length = 1;
}
return 0;
}
static int picolcd_set_par(struct fb_info *info)
{
struct picolcd_fb_data *fbdata = info->par;
u8 *tmp_fb, *o_fb;
if (info->var.bits_per_pixel == fbdata->bpp)
return 0;
/* switch between 1/8 bit depths */
if (info->var.bits_per_pixel != 1 && info->var.bits_per_pixel != 8)
return -EINVAL;
o_fb = fbdata->bitmap;
tmp_fb = kmalloc_array(PICOLCDFB_SIZE, info->var.bits_per_pixel,
GFP_KERNEL);
if (!tmp_fb)
return -ENOMEM;
/* translate FB content to new bits-per-pixel */
if (info->var.bits_per_pixel == 1) {
int i, b;
for (i = 0; i < PICOLCDFB_SIZE; i++) {
u8 p = 0;
for (b = 0; b < 8; b++) {
p <<= 1;
p |= o_fb[i*8+b] ? 0x01 : 0x00;
}
tmp_fb[i] = p;
}
memcpy(o_fb, tmp_fb, PICOLCDFB_SIZE);
info->fix.visual = FB_VISUAL_MONO01;
info->fix.line_length = PICOLCDFB_WIDTH / 8;
} else {
int i;
memcpy(tmp_fb, o_fb, PICOLCDFB_SIZE);
for (i = 0; i < PICOLCDFB_SIZE * 8; i++)
o_fb[i] = tmp_fb[i/8] & (0x01 << (7 - i % 8)) ? 0xff : 0x00;
info->fix.visual = FB_VISUAL_DIRECTCOLOR;
info->fix.line_length = PICOLCDFB_WIDTH;
}
kfree(tmp_fb);
fbdata->bpp = info->var.bits_per_pixel;
return 0;
}
static const struct fb_ops picolcdfb_ops = {
.owner = THIS_MODULE,
.fb_destroy = picolcd_fb_destroy,
.fb_read = fb_sys_read,
.fb_write = picolcd_fb_write,
.fb_blank = picolcd_fb_blank,
.fb_fillrect = picolcd_fb_fillrect,
.fb_copyarea = picolcd_fb_copyarea,
.fb_imageblit = picolcd_fb_imageblit,
.fb_check_var = picolcd_fb_check_var,
.fb_set_par = picolcd_set_par,
.fb_mmap = fb_deferred_io_mmap,
};
/* Callback from deferred IO workqueue */
static void picolcd_fb_deferred_io(struct fb_info *info, struct list_head *pagereflist)
{
picolcd_fb_update(info);
}
static const struct fb_deferred_io picolcd_fb_defio = {
.delay = HZ / PICOLCDFB_UPDATE_RATE_DEFAULT,
.deferred_io = picolcd_fb_deferred_io,
};
/*
* The "fb_update_rate" sysfs attribute
*/
static ssize_t picolcd_fb_update_rate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct picolcd_data *data = dev_get_drvdata(dev);
struct picolcd_fb_data *fbdata = data->fb_info->par;
unsigned i, fb_update_rate = fbdata->update_rate;
size_t ret = 0;
for (i = 1; i <= PICOLCDFB_UPDATE_RATE_LIMIT; i++)
if (ret >= PAGE_SIZE)
break;
else if (i == fb_update_rate)
ret += scnprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i);
else
ret += scnprintf(buf+ret, PAGE_SIZE-ret, "%u ", i);
if (ret > 0)
buf[min(ret, (size_t)PAGE_SIZE)-1] = '\n';
return ret;
}
static ssize_t picolcd_fb_update_rate_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct picolcd_data *data = dev_get_drvdata(dev);
struct picolcd_fb_data *fbdata = data->fb_info->par;
int i;
unsigned u;
if (count < 1 || count > 10)
return -EINVAL;
i = sscanf(buf, "%u", &u);
if (i != 1)
return -EINVAL;
if (u > PICOLCDFB_UPDATE_RATE_LIMIT)
return -ERANGE;
else if (u == 0)
u = PICOLCDFB_UPDATE_RATE_DEFAULT;
fbdata->update_rate = u;
data->fb_info->fbdefio->delay = HZ / fbdata->update_rate;
return count;
}
static DEVICE_ATTR(fb_update_rate, 0664, picolcd_fb_update_rate_show,
picolcd_fb_update_rate_store);
/* initialize Framebuffer device */
int picolcd_init_framebuffer(struct picolcd_data *data)
{
struct device *dev = &data->hdev->dev;
struct fb_info *info = NULL;
struct picolcd_fb_data *fbdata = NULL;
int i, error = -ENOMEM;
u32 *palette;
/* The extra memory is:
* - 256*u32 for pseudo_palette
* - struct fb_deferred_io
*/
info = framebuffer_alloc(256 * sizeof(u32) +
sizeof(struct fb_deferred_io) +
sizeof(struct picolcd_fb_data) +
PICOLCDFB_SIZE, dev);
if (!info)
goto err_nomem;
info->fbdefio = info->par;
*info->fbdefio = picolcd_fb_defio;
info->par += sizeof(struct fb_deferred_io);
palette = info->par;
info->par += 256 * sizeof(u32);
for (i = 0; i < 256; i++)
palette[i] = i > 0 && i < 16 ? 0xff : 0;
info->pseudo_palette = palette;
info->fbops = &picolcdfb_ops;
info->var = picolcdfb_var;
info->fix = picolcdfb_fix;
info->fix.smem_len = PICOLCDFB_SIZE*8;
fbdata = info->par;
spin_lock_init(&fbdata->lock);
fbdata->picolcd = data;
fbdata->update_rate = PICOLCDFB_UPDATE_RATE_DEFAULT;
fbdata->bpp = picolcdfb_var.bits_per_pixel;
fbdata->force = 1;
fbdata->vbitmap = info->par + sizeof(struct picolcd_fb_data);
fbdata->bitmap = vmalloc(PICOLCDFB_SIZE*8);
if (fbdata->bitmap == NULL) {
dev_err(dev, "can't get a free page for framebuffer\n");
goto err_nomem;
}
info->screen_buffer = fbdata->bitmap;
info->fix.smem_start = (unsigned long)fbdata->bitmap;
memset(fbdata->vbitmap, 0xff, PICOLCDFB_SIZE);
data->fb_info = info;
error = picolcd_fb_reset(data, 1);
if (error) {
dev_err(dev, "failed to configure display\n");
goto err_cleanup;
}
error = device_create_file(dev, &dev_attr_fb_update_rate);
if (error) {
dev_err(dev, "failed to create sysfs attributes\n");
goto err_cleanup;
}
fb_deferred_io_init(info);
error = register_framebuffer(info);
if (error) {
dev_err(dev, "failed to register framebuffer\n");
goto err_sysfs;
}
return 0;
err_sysfs:
device_remove_file(dev, &dev_attr_fb_update_rate);
fb_deferred_io_cleanup(info);
err_cleanup:
data->fb_info = NULL;
err_nomem:
if (fbdata)
vfree(fbdata->bitmap);
framebuffer_release(info);
return error;
}
void picolcd_exit_framebuffer(struct picolcd_data *data)
{
struct fb_info *info = data->fb_info;
struct picolcd_fb_data *fbdata;
unsigned long flags;
if (!info)
return;
device_remove_file(&data->hdev->dev, &dev_attr_fb_update_rate);
fbdata = info->par;
/* disconnect framebuffer from HID dev */
spin_lock_irqsave(&fbdata->lock, flags);
fbdata->picolcd = NULL;
spin_unlock_irqrestore(&fbdata->lock, flags);
/* make sure there is no running update - thus that fbdata->picolcd
* once obtained under lock is guaranteed not to get free() under
* the feet of the deferred work */
flush_delayed_work(&info->deferred_work);
data->fb_info = NULL;
unregister_framebuffer(info);
}
| linux-master | drivers/hid/hid-picolcd_fb.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for Logitech receivers
*
* Copyright (c) 2011 Logitech
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/kfifo.h>
#include <linux/delay.h>
#include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */
#include <asm/unaligned.h>
#include "hid-ids.h"
#define DJ_MAX_PAIRED_DEVICES 7
#define DJ_MAX_NUMBER_NOTIFS 8
#define DJ_RECEIVER_INDEX 0
#define DJ_DEVICE_INDEX_MIN 1
#define DJ_DEVICE_INDEX_MAX 7
#define DJREPORT_SHORT_LENGTH 15
#define DJREPORT_LONG_LENGTH 32
#define REPORT_ID_DJ_SHORT 0x20
#define REPORT_ID_DJ_LONG 0x21
#define REPORT_ID_HIDPP_SHORT 0x10
#define REPORT_ID_HIDPP_LONG 0x11
#define REPORT_ID_HIDPP_VERY_LONG 0x12
#define HIDPP_REPORT_SHORT_LENGTH 7
#define HIDPP_REPORT_LONG_LENGTH 20
#define HIDPP_RECEIVER_INDEX 0xff
#define REPORT_TYPE_RFREPORT_FIRST 0x01
#define REPORT_TYPE_RFREPORT_LAST 0x1F
/* Command Switch to DJ mode */
#define REPORT_TYPE_CMD_SWITCH 0x80
#define CMD_SWITCH_PARAM_DEVBITFIELD 0x00
#define CMD_SWITCH_PARAM_TIMEOUT_SECONDS 0x01
#define TIMEOUT_NO_KEEPALIVE 0x00
/* Command to Get the list of Paired devices */
#define REPORT_TYPE_CMD_GET_PAIRED_DEVICES 0x81
/* Device Paired Notification */
#define REPORT_TYPE_NOTIF_DEVICE_PAIRED 0x41
#define SPFUNCTION_MORE_NOTIF_EXPECTED 0x01
#define SPFUNCTION_DEVICE_LIST_EMPTY 0x02
#define DEVICE_PAIRED_PARAM_SPFUNCTION 0x00
#define DEVICE_PAIRED_PARAM_EQUAD_ID_LSB 0x01
#define DEVICE_PAIRED_PARAM_EQUAD_ID_MSB 0x02
#define DEVICE_PAIRED_RF_REPORT_TYPE 0x03
/* Device Un-Paired Notification */
#define REPORT_TYPE_NOTIF_DEVICE_UNPAIRED 0x40
/* Connection Status Notification */
#define REPORT_TYPE_NOTIF_CONNECTION_STATUS 0x42
#define CONNECTION_STATUS_PARAM_STATUS 0x00
#define STATUS_LINKLOSS 0x01
/* Error Notification */
#define REPORT_TYPE_NOTIF_ERROR 0x7F
#define NOTIF_ERROR_PARAM_ETYPE 0x00
#define ETYPE_KEEPALIVE_TIMEOUT 0x01
/* supported DJ HID && RF report types */
#define REPORT_TYPE_KEYBOARD 0x01
#define REPORT_TYPE_MOUSE 0x02
#define REPORT_TYPE_CONSUMER_CONTROL 0x03
#define REPORT_TYPE_SYSTEM_CONTROL 0x04
#define REPORT_TYPE_MEDIA_CENTER 0x08
#define REPORT_TYPE_LEDS 0x0E
/* RF Report types bitfield */
#define STD_KEYBOARD BIT(1)
#define STD_MOUSE BIT(2)
#define MULTIMEDIA BIT(3)
#define POWER_KEYS BIT(4)
#define KBD_MOUSE BIT(5)
#define MEDIA_CENTER BIT(8)
#define KBD_LEDS BIT(14)
/* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */
#define HIDPP BIT_ULL(63)
/* HID++ Device Connected Notification */
#define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41
#define HIDPP_PARAM_PROTO_TYPE 0x00
#define HIDPP_PARAM_DEVICE_INFO 0x01
#define HIDPP_PARAM_EQUAD_LSB 0x02
#define HIDPP_PARAM_EQUAD_MSB 0x03
#define HIDPP_PARAM_27MHZ_DEVID 0x03
#define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
#define HIDPP_LINK_STATUS_MASK BIT(6)
#define HIDPP_MANUFACTURER_MASK BIT(7)
#define HIDPP_27MHZ_SECURE_MASK BIT(7)
#define HIDPP_DEVICE_TYPE_KEYBOARD 1
#define HIDPP_DEVICE_TYPE_MOUSE 2
#define HIDPP_SET_REGISTER 0x80
#define HIDPP_GET_LONG_REGISTER 0x83
#define HIDPP_REG_CONNECTION_STATE 0x02
#define HIDPP_REG_PAIRING_INFORMATION 0xB5
#define HIDPP_PAIRING_INFORMATION 0x20
#define HIDPP_FAKE_DEVICE_ARRIVAL 0x02
enum recvr_type {
recvr_type_dj,
recvr_type_hidpp,
recvr_type_gaming_hidpp,
recvr_type_mouse_only,
recvr_type_27mhz,
recvr_type_bluetooth,
recvr_type_dinovo,
};
struct dj_report {
u8 report_id;
u8 device_index;
u8 report_type;
u8 report_params[DJREPORT_SHORT_LENGTH - 3];
};
struct hidpp_event {
u8 report_id;
u8 device_index;
u8 sub_id;
u8 params[HIDPP_REPORT_LONG_LENGTH - 3U];
} __packed;
struct dj_receiver_dev {
struct hid_device *mouse;
struct hid_device *keyboard;
struct hid_device *hidpp;
struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES +
DJ_DEVICE_INDEX_MIN];
struct list_head list;
struct kref kref;
struct work_struct work;
struct kfifo notif_fifo;
unsigned long last_query; /* in jiffies */
bool ready;
enum recvr_type type;
unsigned int unnumbered_application;
spinlock_t lock;
};
struct dj_device {
struct hid_device *hdev;
struct dj_receiver_dev *dj_receiver_dev;
u64 reports_supported;
u8 device_index;
};
#define WORKITEM_TYPE_EMPTY 0
#define WORKITEM_TYPE_PAIRED 1
#define WORKITEM_TYPE_UNPAIRED 2
#define WORKITEM_TYPE_UNKNOWN 255
struct dj_workitem {
u8 type; /* WORKITEM_TYPE_* */
u8 device_index;
u8 device_type;
u8 quad_id_msb;
u8 quad_id_lsb;
u64 reports_supported;
};
/* Keyboard descriptor (1) */
static const char kbd_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (generic Desktop) */
0x09, 0x06, /* USAGE (Keyboard) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x01, /* REPORT_ID (1) */
0x95, 0x08, /* REPORT_COUNT (8) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x15, 0x00, /* LOGICAL_MINIMUM (0) */
0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
0x05, 0x07, /* USAGE_PAGE (Keyboard) */
0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */
0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */
0x81, 0x02, /* INPUT (Data,Var,Abs) */
0x95, 0x06, /* REPORT_COUNT (6) */
0x75, 0x08, /* REPORT_SIZE (8) */
0x15, 0x00, /* LOGICAL_MINIMUM (0) */
0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */
0x05, 0x07, /* USAGE_PAGE (Keyboard) */
0x19, 0x00, /* USAGE_MINIMUM (no event) */
0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */
0x81, 0x00, /* INPUT (Data,Ary,Abs) */
0x85, 0x0e, /* REPORT_ID (14) */
0x05, 0x08, /* USAGE PAGE (LED page) */
0x95, 0x05, /* REPORT COUNT (5) */
0x75, 0x01, /* REPORT SIZE (1) */
0x15, 0x00, /* LOGICAL_MINIMUM (0) */
0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
0x19, 0x01, /* USAGE MINIMUM (1) */
0x29, 0x05, /* USAGE MAXIMUM (5) */
0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */
0x95, 0x01, /* REPORT COUNT (1) */
0x75, 0x03, /* REPORT SIZE (3) */
0x91, 0x01, /* OUTPUT (Constant) */
0xC0
};
/* Mouse descriptor (2) */
static const char mse_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x02, /* USAGE (Mouse) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x02, /* REPORT_ID = 2 */
0x09, 0x01, /* USAGE (pointer) */
0xA1, 0x00, /* COLLECTION (physical) */
0x05, 0x09, /* USAGE_PAGE (buttons) */
0x19, 0x01, /* USAGE_MIN (1) */
0x29, 0x10, /* USAGE_MAX (16) */
0x15, 0x00, /* LOGICAL_MIN (0) */
0x25, 0x01, /* LOGICAL_MAX (1) */
0x95, 0x10, /* REPORT_COUNT (16) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x81, 0x02, /* INPUT (data var abs) */
0x05, 0x01, /* USAGE_PAGE (generic desktop) */
0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
0x75, 0x0C, /* REPORT_SIZE (12) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x09, 0x30, /* USAGE (X) */
0x09, 0x31, /* USAGE (Y) */
0x81, 0x06, /* INPUT */
0x15, 0x81, /* LOGICAL_MIN (-127) */
0x25, 0x7F, /* LOGICAL_MAX (127) */
0x75, 0x08, /* REPORT_SIZE (8) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x09, 0x38, /* USAGE (wheel) */
0x81, 0x06, /* INPUT */
0x05, 0x0C, /* USAGE_PAGE(consumer) */
0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x81, 0x06, /* INPUT */
0xC0, /* END_COLLECTION */
0xC0, /* END_COLLECTION */
};
/* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */
static const char mse_27mhz_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x02, /* USAGE (Mouse) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x02, /* REPORT_ID = 2 */
0x09, 0x01, /* USAGE (pointer) */
0xA1, 0x00, /* COLLECTION (physical) */
0x05, 0x09, /* USAGE_PAGE (buttons) */
0x19, 0x01, /* USAGE_MIN (1) */
0x29, 0x08, /* USAGE_MAX (8) */
0x15, 0x00, /* LOGICAL_MIN (0) */
0x25, 0x01, /* LOGICAL_MAX (1) */
0x95, 0x08, /* REPORT_COUNT (8) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x81, 0x02, /* INPUT (data var abs) */
0x05, 0x01, /* USAGE_PAGE (generic desktop) */
0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
0x75, 0x0C, /* REPORT_SIZE (12) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x09, 0x30, /* USAGE (X) */
0x09, 0x31, /* USAGE (Y) */
0x81, 0x06, /* INPUT */
0x15, 0x81, /* LOGICAL_MIN (-127) */
0x25, 0x7F, /* LOGICAL_MAX (127) */
0x75, 0x08, /* REPORT_SIZE (8) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x09, 0x38, /* USAGE (wheel) */
0x81, 0x06, /* INPUT */
0x05, 0x0C, /* USAGE_PAGE(consumer) */
0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x81, 0x06, /* INPUT */
0xC0, /* END_COLLECTION */
0xC0, /* END_COLLECTION */
};
/* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */
static const char mse_bluetooth_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x02, /* USAGE (Mouse) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x02, /* REPORT_ID = 2 */
0x09, 0x01, /* USAGE (pointer) */
0xA1, 0x00, /* COLLECTION (physical) */
0x05, 0x09, /* USAGE_PAGE (buttons) */
0x19, 0x01, /* USAGE_MIN (1) */
0x29, 0x08, /* USAGE_MAX (8) */
0x15, 0x00, /* LOGICAL_MIN (0) */
0x25, 0x01, /* LOGICAL_MAX (1) */
0x95, 0x08, /* REPORT_COUNT (8) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x81, 0x02, /* INPUT (data var abs) */
0x05, 0x01, /* USAGE_PAGE (generic desktop) */
0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
0x75, 0x0C, /* REPORT_SIZE (12) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x09, 0x30, /* USAGE (X) */
0x09, 0x31, /* USAGE (Y) */
0x81, 0x06, /* INPUT */
0x15, 0x81, /* LOGICAL_MIN (-127) */
0x25, 0x7F, /* LOGICAL_MAX (127) */
0x75, 0x08, /* REPORT_SIZE (8) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x09, 0x38, /* USAGE (wheel) */
0x81, 0x06, /* INPUT */
0x05, 0x0C, /* USAGE_PAGE(consumer) */
0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
0x15, 0xF9, /* LOGICAL_MIN (-7) */
0x25, 0x07, /* LOGICAL_MAX (7) */
0x75, 0x04, /* REPORT_SIZE (4) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x81, 0x06, /* INPUT */
0x05, 0x09, /* USAGE_PAGE (buttons) */
0x19, 0x09, /* USAGE_MIN (9) */
0x29, 0x0C, /* USAGE_MAX (12) */
0x15, 0x00, /* LOGICAL_MIN (0) */
0x25, 0x01, /* LOGICAL_MAX (1) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x95, 0x04, /* REPORT_COUNT (4) */
0x81, 0x02, /* INPUT (Data,Var,Abs) */
0xC0, /* END_COLLECTION */
0xC0, /* END_COLLECTION */
};
/* Mouse descriptor (5) for Bluetooth receiver, normal-res hwheel, 8 buttons */
static const char mse5_bluetooth_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x02, /* Usage (Mouse) */
0xa1, 0x01, /* Collection (Application) */
0x85, 0x05, /* Report ID (5) */
0x09, 0x01, /* Usage (Pointer) */
0xa1, 0x00, /* Collection (Physical) */
0x05, 0x09, /* Usage Page (Button) */
0x19, 0x01, /* Usage Minimum (1) */
0x29, 0x08, /* Usage Maximum (8) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x95, 0x08, /* Report Count (8) */
0x75, 0x01, /* Report Size (1) */
0x81, 0x02, /* Input (Data,Var,Abs) */
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x16, 0x01, 0xf8, /* Logical Minimum (-2047) */
0x26, 0xff, 0x07, /* Logical Maximum (2047) */
0x75, 0x0c, /* Report Size (12) */
0x95, 0x02, /* Report Count (2) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x15, 0x81, /* Logical Minimum (-127) */
0x25, 0x7f, /* Logical Maximum (127) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x01, /* Report Count (1) */
0x09, 0x38, /* Usage (Wheel) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x05, 0x0c, /* Usage Page (Consumer Devices) */
0x0a, 0x38, 0x02, /* Usage (AC Pan) */
0x15, 0x81, /* Logical Minimum (-127) */
0x25, 0x7f, /* Logical Maximum (127) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x01, /* Report Count (1) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0xc0, /* End Collection */
0xc0, /* End Collection */
};
/* Gaming Mouse descriptor (2) */
static const char mse_high_res_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x02, /* USAGE (Mouse) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x02, /* REPORT_ID = 2 */
0x09, 0x01, /* USAGE (pointer) */
0xA1, 0x00, /* COLLECTION (physical) */
0x05, 0x09, /* USAGE_PAGE (buttons) */
0x19, 0x01, /* USAGE_MIN (1) */
0x29, 0x10, /* USAGE_MAX (16) */
0x15, 0x00, /* LOGICAL_MIN (0) */
0x25, 0x01, /* LOGICAL_MAX (1) */
0x95, 0x10, /* REPORT_COUNT (16) */
0x75, 0x01, /* REPORT_SIZE (1) */
0x81, 0x02, /* INPUT (data var abs) */
0x05, 0x01, /* USAGE_PAGE (generic desktop) */
0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */
0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */
0x75, 0x10, /* REPORT_SIZE (16) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x09, 0x30, /* USAGE (X) */
0x09, 0x31, /* USAGE (Y) */
0x81, 0x06, /* INPUT */
0x15, 0x81, /* LOGICAL_MIN (-127) */
0x25, 0x7F, /* LOGICAL_MAX (127) */
0x75, 0x08, /* REPORT_SIZE (8) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x09, 0x38, /* USAGE (wheel) */
0x81, 0x06, /* INPUT */
0x05, 0x0C, /* USAGE_PAGE(consumer) */
0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x81, 0x06, /* INPUT */
0xC0, /* END_COLLECTION */
0xC0, /* END_COLLECTION */
};
/* Consumer Control descriptor (3) */
static const char consumer_descriptor[] = {
0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */
0x09, 0x01, /* USAGE (Consumer Control) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x03, /* REPORT_ID = 3 */
0x75, 0x10, /* REPORT_SIZE (16) */
0x95, 0x02, /* REPORT_COUNT (2) */
0x15, 0x01, /* LOGICAL_MIN (1) */
0x26, 0xFF, 0x02, /* LOGICAL_MAX (767) */
0x19, 0x01, /* USAGE_MIN (1) */
0x2A, 0xFF, 0x02, /* USAGE_MAX (767) */
0x81, 0x00, /* INPUT (Data Ary Abs) */
0xC0, /* END_COLLECTION */
}; /* */
/* System control descriptor (4) */
static const char syscontrol_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
0x09, 0x80, /* USAGE (System Control) */
0xA1, 0x01, /* COLLECTION (Application) */
0x85, 0x04, /* REPORT_ID = 4 */
0x75, 0x02, /* REPORT_SIZE (2) */
0x95, 0x01, /* REPORT_COUNT (1) */
0x15, 0x01, /* LOGICAL_MIN (1) */
0x25, 0x03, /* LOGICAL_MAX (3) */
0x09, 0x82, /* USAGE (System Sleep) */
0x09, 0x81, /* USAGE (System Power Down) */
0x09, 0x83, /* USAGE (System Wake Up) */
0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */
0x75, 0x06, /* REPORT_SIZE (6) */
0x81, 0x03, /* INPUT (Cnst Var Abs) */
0xC0, /* END_COLLECTION */
};
/* Media descriptor (8) */
static const char media_descriptor[] = {
0x06, 0xbc, 0xff, /* Usage Page 0xffbc */
0x09, 0x88, /* Usage 0x0088 */
0xa1, 0x01, /* BeginCollection */
0x85, 0x08, /* Report ID 8 */
0x19, 0x01, /* Usage Min 0x0001 */
0x29, 0xff, /* Usage Max 0x00ff */
0x15, 0x01, /* Logical Min 1 */
0x26, 0xff, 0x00, /* Logical Max 255 */
0x75, 0x08, /* Report Size 8 */
0x95, 0x01, /* Report Count 1 */
0x81, 0x00, /* Input */
0xc0, /* EndCollection */
}; /* */
/* HIDPP descriptor */
static const char hidpp_descriptor[] = {
0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
0x09, 0x01, /* Usage (Vendor Usage 1) */
0xa1, 0x01, /* Collection (Application) */
0x85, 0x10, /* Report ID (16) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x06, /* Report Count (6) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x09, 0x01, /* Usage (Vendor Usage 1) */
0x81, 0x00, /* Input (Data,Arr,Abs) */
0x09, 0x01, /* Usage (Vendor Usage 1) */
0x91, 0x00, /* Output (Data,Arr,Abs) */
0xc0, /* End Collection */
0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
0x09, 0x02, /* Usage (Vendor Usage 2) */
0xa1, 0x01, /* Collection (Application) */
0x85, 0x11, /* Report ID (17) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x13, /* Report Count (19) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x09, 0x02, /* Usage (Vendor Usage 2) */
0x81, 0x00, /* Input (Data,Arr,Abs) */
0x09, 0x02, /* Usage (Vendor Usage 2) */
0x91, 0x00, /* Output (Data,Arr,Abs) */
0xc0, /* End Collection */
0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
0x09, 0x04, /* Usage (Vendor Usage 0x04) */
0xa1, 0x01, /* Collection (Application) */
0x85, 0x20, /* Report ID (32) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x0e, /* Report Count (14) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x09, 0x41, /* Usage (Vendor Usage 0x41) */
0x81, 0x00, /* Input (Data,Arr,Abs) */
0x09, 0x41, /* Usage (Vendor Usage 0x41) */
0x91, 0x00, /* Output (Data,Arr,Abs) */
0x85, 0x21, /* Report ID (33) */
0x95, 0x1f, /* Report Count (31) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x09, 0x42, /* Usage (Vendor Usage 0x42) */
0x81, 0x00, /* Input (Data,Arr,Abs) */
0x09, 0x42, /* Usage (Vendor Usage 0x42) */
0x91, 0x00, /* Output (Data,Arr,Abs) */
0xc0, /* End Collection */
};
/* Maximum size of all defined hid reports in bytes (including report id) */
#define MAX_REPORT_SIZE 8
/* Make sure all descriptors are present here */
#define MAX_RDESC_SIZE \
(sizeof(kbd_descriptor) + \
sizeof(mse_bluetooth_descriptor) + \
sizeof(mse5_bluetooth_descriptor) + \
sizeof(consumer_descriptor) + \
sizeof(syscontrol_descriptor) + \
sizeof(media_descriptor) + \
sizeof(hidpp_descriptor))
/* Number of possible hid report types that can be created by this driver.
*
* Right now, RF report types have the same report types (or report id's)
* than the hid report created from those RF reports. In the future
* this doesnt have to be true.
*
* For instance, RF report type 0x01 which has a size of 8 bytes, corresponds
* to hid report id 0x01, this is standard keyboard. Same thing applies to mice
* reports and consumer control, etc. If a new RF report is created, it doesn't
* has to have the same report id as its corresponding hid report, so an
* translation may have to take place for future report types.
*/
#define NUMBER_OF_HID_REPORTS 32
static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
[1] = 8, /* Standard keyboard */
[2] = 8, /* Standard mouse */
[3] = 5, /* Consumer control */
[4] = 2, /* System control */
[8] = 2, /* Media Center */
};
#define LOGITECH_DJ_INTERFACE_NUMBER 0x02
static const struct hid_ll_driver logi_dj_ll_driver;
static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
static void delayedwork_callback(struct work_struct *work);
static LIST_HEAD(dj_hdev_list);
static DEFINE_MUTEX(dj_hdev_list_lock);
static bool recvr_type_is_bluetooth(enum recvr_type type)
{
return type == recvr_type_bluetooth || type == recvr_type_dinovo;
}
/*
* dj/HID++ receivers are really a single logical entity, but for BIOS/Windows
* compatibility they have multiple USB interfaces. On HID++ receivers we need
* to listen for input reports on both interfaces. The functions below are used
* to create a single struct dj_receiver_dev for all interfaces belonging to
* a single USB-device / receiver.
*/
static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev,
enum recvr_type type)
{
struct dj_receiver_dev *djrcv_dev;
char sep;
/*
* The bluetooth receiver contains a built-in hub and has separate
* USB-devices for the keyboard and mouse interfaces.
*/
sep = recvr_type_is_bluetooth(type) ? '.' : '/';
/* Try to find an already-probed interface from the same device */
list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {
if (djrcv_dev->mouse &&
hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) {
kref_get(&djrcv_dev->kref);
return djrcv_dev;
}
if (djrcv_dev->keyboard &&
hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) {
kref_get(&djrcv_dev->kref);
return djrcv_dev;
}
if (djrcv_dev->hidpp &&
hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) {
kref_get(&djrcv_dev->kref);
return djrcv_dev;
}
}
return NULL;
}
static void dj_release_receiver_dev(struct kref *kref)
{
struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref);
list_del(&djrcv_dev->list);
kfifo_free(&djrcv_dev->notif_fifo);
kfree(djrcv_dev);
}
static void dj_put_receiver_dev(struct hid_device *hdev)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
mutex_lock(&dj_hdev_list_lock);
if (djrcv_dev->mouse == hdev)
djrcv_dev->mouse = NULL;
if (djrcv_dev->keyboard == hdev)
djrcv_dev->keyboard = NULL;
if (djrcv_dev->hidpp == hdev)
djrcv_dev->hidpp = NULL;
kref_put(&djrcv_dev->kref, dj_release_receiver_dev);
mutex_unlock(&dj_hdev_list_lock);
}
static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
enum recvr_type type,
unsigned int application,
bool is_hidpp)
{
struct dj_receiver_dev *djrcv_dev;
mutex_lock(&dj_hdev_list_lock);
djrcv_dev = dj_find_receiver_dev(hdev, type);
if (!djrcv_dev) {
djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL);
if (!djrcv_dev)
goto out;
INIT_WORK(&djrcv_dev->work, delayedwork_callback);
spin_lock_init(&djrcv_dev->lock);
if (kfifo_alloc(&djrcv_dev->notif_fifo,
DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem),
GFP_KERNEL)) {
kfree(djrcv_dev);
djrcv_dev = NULL;
goto out;
}
kref_init(&djrcv_dev->kref);
list_add_tail(&djrcv_dev->list, &dj_hdev_list);
djrcv_dev->last_query = jiffies;
djrcv_dev->type = type;
}
if (application == HID_GD_KEYBOARD)
djrcv_dev->keyboard = hdev;
if (application == HID_GD_MOUSE)
djrcv_dev->mouse = hdev;
if (is_hidpp)
djrcv_dev->hidpp = hdev;
hid_set_drvdata(hdev, djrcv_dev);
out:
mutex_unlock(&dj_hdev_list_lock);
return djrcv_dev;
}
static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
struct dj_workitem *workitem)
{
/* Called in delayed work context */
struct dj_device *dj_dev;
unsigned long flags;
spin_lock_irqsave(&djrcv_dev->lock, flags);
dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index];
djrcv_dev->paired_dj_devices[workitem->device_index] = NULL;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
if (dj_dev != NULL) {
hid_destroy_device(dj_dev->hdev);
kfree(dj_dev);
} else {
hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n",
__func__);
}
}
static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
struct dj_workitem *workitem)
{
/* Called in delayed work context */
struct hid_device *djrcv_hdev = djrcv_dev->hidpp;
struct hid_device *dj_hiddev;
struct dj_device *dj_dev;
u8 device_index = workitem->device_index;
unsigned long flags;
/* Device index goes from 1 to 6, we need 3 bytes to store the
* semicolon, the index, and a null terminator
*/
unsigned char tmpstr[3];
/* We are the only one ever adding a device, no need to lock */
if (djrcv_dev->paired_dj_devices[device_index]) {
/* The device is already known. No need to reallocate it. */
dbg_hid("%s: device is already known\n", __func__);
return;
}
dj_hiddev = hid_allocate_device();
if (IS_ERR(dj_hiddev)) {
hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__);
return;
}
dj_hiddev->ll_driver = &logi_dj_ll_driver;
dj_hiddev->dev.parent = &djrcv_hdev->dev;
dj_hiddev->bus = BUS_USB;
dj_hiddev->vendor = djrcv_hdev->vendor;
dj_hiddev->product = (workitem->quad_id_msb << 8) |
workitem->quad_id_lsb;
if (workitem->device_type) {
const char *type_str = "Device";
switch (workitem->device_type) {
case 0x01: type_str = "Keyboard"; break;
case 0x02: type_str = "Mouse"; break;
case 0x03: type_str = "Numpad"; break;
case 0x04: type_str = "Presenter"; break;
case 0x07: type_str = "Remote Control"; break;
case 0x08: type_str = "Trackball"; break;
case 0x09: type_str = "Touchpad"; break;
}
snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
"Logitech Wireless %s PID:%04x",
type_str, dj_hiddev->product);
} else {
snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
"Logitech Wireless Device PID:%04x",
dj_hiddev->product);
}
if (djrcv_dev->type == recvr_type_27mhz)
dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE;
else
dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE;
memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys));
snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index);
strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys));
dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL);
if (!dj_dev) {
hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__);
goto dj_device_allocate_fail;
}
dj_dev->reports_supported = workitem->reports_supported;
dj_dev->hdev = dj_hiddev;
dj_dev->dj_receiver_dev = djrcv_dev;
dj_dev->device_index = device_index;
dj_hiddev->driver_data = dj_dev;
spin_lock_irqsave(&djrcv_dev->lock, flags);
djrcv_dev->paired_dj_devices[device_index] = dj_dev;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
if (hid_add_device(dj_hiddev)) {
hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__);
goto hid_add_device_fail;
}
return;
hid_add_device_fail:
spin_lock_irqsave(&djrcv_dev->lock, flags);
djrcv_dev->paired_dj_devices[device_index] = NULL;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
kfree(dj_dev);
dj_device_allocate_fail:
hid_destroy_device(dj_hiddev);
}
static void delayedwork_callback(struct work_struct *work)
{
struct dj_receiver_dev *djrcv_dev =
container_of(work, struct dj_receiver_dev, work);
struct dj_workitem workitem;
unsigned long flags;
int count;
int retval;
dbg_hid("%s\n", __func__);
spin_lock_irqsave(&djrcv_dev->lock, flags);
/*
* Since we attach to multiple interfaces, we may get scheduled before
* we are bound to the HID++ interface, catch this.
*/
if (!djrcv_dev->ready) {
pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n",
__func__);
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return;
}
count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
if (count != sizeof(workitem)) {
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return;
}
if (!kfifo_is_empty(&djrcv_dev->notif_fifo))
schedule_work(&djrcv_dev->work);
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
switch (workitem.type) {
case WORKITEM_TYPE_PAIRED:
logi_dj_recv_add_djhid_device(djrcv_dev, &workitem);
break;
case WORKITEM_TYPE_UNPAIRED:
logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem);
break;
case WORKITEM_TYPE_UNKNOWN:
retval = logi_dj_recv_query_paired_devices(djrcv_dev);
if (retval) {
hid_err(djrcv_dev->hidpp, "%s: logi_dj_recv_query_paired_devices error: %d\n",
__func__, retval);
}
break;
case WORKITEM_TYPE_EMPTY:
dbg_hid("%s: device list is empty\n", __func__);
break;
}
}
/*
* Sometimes we receive reports for which we do not have a paired dj_device
* associated with the device_index or report-type to forward the report to.
* This means that the original "device paired" notification corresponding
* to the dj_device never arrived to this driver. Possible reasons for this are:
* 1) hid-core discards all packets coming from a device during probe().
* 2) if the receiver is plugged into a KVM switch then the pairing reports
* are only forwarded to it if the focus is on this PC.
* This function deals with this by re-asking the receiver for the list of
* connected devices in the delayed work callback.
* This function MUST be called with djrcv->lock held.
*/
static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev)
{
struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN };
/* Rate limit queries done because of unhandled reports to 2/sec */
if (time_before(jiffies, djrcv_dev->last_query + HZ / 2))
return;
kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
schedule_work(&djrcv_dev->work);
}
static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
struct dj_workitem workitem = {
.device_index = dj_report->device_index,
};
switch (dj_report->report_type) {
case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
workitem.type = WORKITEM_TYPE_PAIRED;
if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
SPFUNCTION_DEVICE_LIST_EMPTY) {
workitem.type = WORKITEM_TYPE_EMPTY;
break;
}
fallthrough;
case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
workitem.quad_id_msb =
dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB];
workitem.quad_id_lsb =
dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB];
workitem.reports_supported = get_unaligned_le32(
dj_report->report_params +
DEVICE_PAIRED_RF_REPORT_TYPE);
workitem.reports_supported |= HIDPP;
if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED)
workitem.type = WORKITEM_TYPE_UNPAIRED;
break;
default:
logi_dj_recv_queue_unknown_work(djrcv_dev);
return;
}
kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
schedule_work(&djrcv_dev->work);
}
/*
* Some quad/bluetooth keyboards have a builtin touchpad in this case we see
* only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the
* touchpad to work we must also forward mouse input reports to the dj_hiddev
* created for the keyboard (instead of forwarding them to a second paired
* device with a device_type of REPORT_TYPE_MOUSE as we normally would).
*
* On Dinovo receivers the keyboard's touchpad and an optional paired actual
* mouse send separate input reports, INPUT(2) aka STD_MOUSE for the mouse
* and INPUT(5) aka KBD_MOUSE for the keyboard's touchpad.
*
* On MX5x00 receivers (which can also be paired with a Dinovo keyboard)
* INPUT(2) is used for both an optional paired actual mouse and for the
* keyboard's touchpad.
*/
static const u16 kbd_builtin_touchpad_ids[] = {
0xb309, /* Dinovo Edge */
0xb30c, /* Dinovo Mini */
};
static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
struct hidpp_event *hidpp_report,
struct dj_workitem *workitem)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
int i, id;
workitem->type = WORKITEM_TYPE_PAIRED;
workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
HIDPP_DEVICE_TYPE_MASK;
workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB];
workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB];
switch (workitem->device_type) {
case REPORT_TYPE_KEYBOARD:
workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
POWER_KEYS | MEDIA_CENTER |
HIDPP;
id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
if (id == kbd_builtin_touchpad_ids[i]) {
if (djrcv_dev->type == recvr_type_dinovo)
workitem->reports_supported |= KBD_MOUSE;
else
workitem->reports_supported |= STD_MOUSE;
break;
}
}
break;
case REPORT_TYPE_MOUSE:
workitem->reports_supported |= STD_MOUSE | HIDPP;
if (djrcv_dev->type == recvr_type_mouse_only)
workitem->reports_supported |= MULTIMEDIA;
break;
}
}
static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev,
struct hidpp_event *hidpp_report,
struct dj_workitem *workitem)
{
workitem->type = WORKITEM_TYPE_PAIRED;
workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID];
switch (hidpp_report->device_index) {
case 1: /* Index 1 is always a mouse */
case 2: /* Index 2 is always a mouse */
workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE;
workitem->reports_supported |= STD_MOUSE | HIDPP;
break;
case 3: /* Index 3 is always the keyboard */
if (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & HIDPP_27MHZ_SECURE_MASK) {
hid_info(hdev, "Keyboard connection is encrypted\n");
} else {
hid_warn(hdev, "Keyboard events are send over the air in plain-text / unencrypted\n");
hid_warn(hdev, "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
}
fallthrough;
case 4: /* Index 4 is used for an optional separate numpad */
workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
POWER_KEYS | HIDPP;
break;
default:
hid_warn(hdev, "%s: unexpected device-index %d", __func__,
hidpp_report->device_index);
}
}
static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
struct hidpp_event *hidpp_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
const char *device_type = "UNKNOWN";
struct dj_workitem workitem = {
.type = WORKITEM_TYPE_EMPTY,
.device_index = hidpp_report->device_index,
};
switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) {
case 0x01:
device_type = "Bluetooth";
/* Bluetooth connect packet contents is the same as (e)QUAD */
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
HIDPP_MANUFACTURER_MASK)) {
hid_info(hdev, "Non Logitech device connected on slot %d\n",
hidpp_report->device_index);
workitem.reports_supported &= ~HIDPP;
}
break;
case 0x02:
device_type = "27 Mhz";
logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem);
break;
case 0x03:
device_type = "QUAD or eQUAD";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x04:
device_type = "eQUAD step 4 DJ";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x05:
device_type = "DFU Lite";
break;
case 0x06:
device_type = "eQUAD step 4 Lite";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x07:
device_type = "eQUAD step 4 Gaming";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x08:
device_type = "eQUAD step 4 for gamepads";
break;
case 0x0a:
device_type = "eQUAD nano Lite";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
break;
case 0x0c:
device_type = "eQUAD Lightspeed 1";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x0d:
device_type = "eQUAD Lightspeed 1.1";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
case 0x0f:
case 0x11:
device_type = "eQUAD Lightspeed 1.2";
logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
workitem.reports_supported |= STD_KEYBOARD;
break;
}
/* custom receiver device (eg. powerplay) */
if (hidpp_report->device_index == 7) {
workitem.reports_supported |= HIDPP;
}
if (workitem.type == WORKITEM_TYPE_EMPTY) {
hid_warn(hdev,
"unusable device of type %s (0x%02x) connected on slot %d",
device_type,
hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
hidpp_report->device_index);
return;
}
hid_info(hdev, "device of type %s (0x%02x) connected on slot %d",
device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
hidpp_report->device_index);
kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
schedule_work(&djrcv_dev->work);
}
static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
unsigned int i;
u8 reportbuffer[MAX_REPORT_SIZE];
struct dj_device *djdev;
djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
memset(reportbuffer, 0, sizeof(reportbuffer));
for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
if (djdev->reports_supported & (1 << i)) {
reportbuffer[0] = i;
if (hid_input_report(djdev->hdev,
HID_INPUT_REPORT,
reportbuffer,
hid_reportid_size_map[i], 1)) {
dbg_hid("hid_input_report error sending null "
"report\n");
}
}
}
}
static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
struct dj_device *dj_device;
dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
(hid_reportid_size_map[dj_report->report_type] == 0)) {
dbg_hid("invalid report type:%x\n", dj_report->report_type);
return;
}
if (hid_input_report(dj_device->hdev,
HID_INPUT_REPORT, &dj_report->report_type,
hid_reportid_size_map[dj_report->report_type], 1)) {
dbg_hid("hid_input_report error\n");
}
}
static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data,
int size)
{
/* We are called from atomic context (tasklet && djrcv->lock held) */
if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1))
dbg_hid("hid_input_report error\n");
}
static void logi_dj_recv_forward_input_report(struct hid_device *hdev,
u8 *data, int size)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
struct dj_device *dj_dev;
unsigned long flags;
u8 report = data[0];
int i;
if (report > REPORT_TYPE_RFREPORT_LAST) {
hid_err(hdev, "Unexpected input report number %d\n", report);
return;
}
spin_lock_irqsave(&djrcv_dev->lock, flags);
for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
dj_dev = djrcv_dev->paired_dj_devices[i];
if (dj_dev && (dj_dev->reports_supported & BIT(report))) {
logi_dj_recv_forward_report(dj_dev, data, size);
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return;
}
}
logi_dj_recv_queue_unknown_work(djrcv_dev);
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
dbg_hid("No dj-devs handling input report number %d\n", report);
}
static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
struct hid_device *hdev = djrcv_dev->hidpp;
struct hid_report *report;
struct hid_report_enum *output_report_enum;
u8 *data = (u8 *)(&dj_report->device_index);
unsigned int i;
output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
if (!report) {
hid_err(hdev, "%s: unable to find dj report\n", __func__);
return -ENODEV;
}
for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++)
report->field[0]->value[i] = data[i];
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
return 0;
}
static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)
{
static const u8 template[] = {
REPORT_ID_HIDPP_SHORT,
HIDPP_RECEIVER_INDEX,
HIDPP_SET_REGISTER,
HIDPP_REG_CONNECTION_STATE,
HIDPP_FAKE_DEVICE_ARRIVAL,
0x00, 0x00
};
u8 *hidpp_report;
int retval;
hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL);
if (!hidpp_report)
return -ENOMEM;
retval = hid_hw_raw_request(djrcv_dev->hidpp,
REPORT_ID_HIDPP_SHORT,
hidpp_report, sizeof(template),
HID_OUTPUT_REPORT,
HID_REQ_SET_REPORT);
kfree(hidpp_report);
return (retval < 0) ? retval : 0;
}
static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
{
struct dj_report *dj_report;
int retval;
djrcv_dev->last_query = jiffies;
if (djrcv_dev->type != recvr_type_dj)
return logi_dj_recv_query_hidpp_devices(djrcv_dev);
dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
if (!dj_report)
return -ENOMEM;
dj_report->report_id = REPORT_ID_DJ_SHORT;
dj_report->device_index = HIDPP_RECEIVER_INDEX;
dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES;
retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
kfree(dj_report);
return retval;
}
static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
unsigned timeout)
{
struct hid_device *hdev = djrcv_dev->hidpp;
struct dj_report *dj_report;
u8 *buf;
int retval = 0;
dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
if (!dj_report)
return -ENOMEM;
if (djrcv_dev->type == recvr_type_dj) {
dj_report->report_id = REPORT_ID_DJ_SHORT;
dj_report->device_index = HIDPP_RECEIVER_INDEX;
dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] =
(u8)timeout;
retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
/*
* Ugly sleep to work around a USB 3.0 bug when the receiver is
* still processing the "switch-to-dj" command while we send an
* other command.
* 50 msec should gives enough time to the receiver to be ready.
*/
msleep(50);
if (retval)
return retval;
}
/*
* Magical bits to set up hidpp notifications when the dj devices
* are connected/disconnected.
*
* We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller
* than DJREPORT_SHORT_LENGTH.
*/
buf = (u8 *)dj_report;
memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH);
buf[0] = REPORT_ID_HIDPP_SHORT;
buf[1] = HIDPP_RECEIVER_INDEX;
buf[2] = 0x80;
buf[3] = 0x00;
buf[4] = 0x00;
buf[5] = 0x09;
buf[6] = 0x00;
retval = hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf,
HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT,
HID_REQ_SET_REPORT);
kfree(dj_report);
return retval;
}
static int logi_dj_ll_open(struct hid_device *hid)
{
dbg_hid("%s: %s\n", __func__, hid->phys);
return 0;
}
static void logi_dj_ll_close(struct hid_device *hid)
{
dbg_hid("%s: %s\n", __func__, hid->phys);
}
/*
* Register 0xB5 is "pairing information". It is solely intended for the
* receiver, so do not overwrite the device index.
*/
static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT,
HIDPP_RECEIVER_INDEX,
HIDPP_GET_LONG_REGISTER,
HIDPP_REG_PAIRING_INFORMATION };
static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG,
HIDPP_RECEIVER_INDEX,
HIDPP_GET_LONG_REGISTER,
HIDPP_REG_PAIRING_INFORMATION };
static int logi_dj_ll_raw_request(struct hid_device *hid,
unsigned char reportnum, __u8 *buf,
size_t count, unsigned char report_type,
int reqtype)
{
struct dj_device *djdev = hid->driver_data;
struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
u8 *out_buf;
int ret;
if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
(buf[0] == REPORT_ID_HIDPP_LONG) ||
(buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
if (count < 2)
return -EINVAL;
/* special case where we should not overwrite
* the device_index */
if (count == 7 && !memcmp(buf, unifying_pairing_query,
sizeof(unifying_pairing_query)))
buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1);
else
buf[1] = djdev->device_index;
return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf,
count, report_type, reqtype);
}
if (buf[0] != REPORT_TYPE_LEDS)
return -EINVAL;
if (djrcv_dev->type != recvr_type_dj && count >= 2) {
if (!djrcv_dev->keyboard) {
hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n");
return 0;
}
/* usbhid overrides the report ID and ignores the first byte */
return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count,
report_type, reqtype);
}
out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
if (!out_buf)
return -ENOMEM;
if (count > DJREPORT_SHORT_LENGTH - 2)
count = DJREPORT_SHORT_LENGTH - 2;
out_buf[0] = REPORT_ID_DJ_SHORT;
out_buf[1] = djdev->device_index;
memcpy(out_buf + 2, buf, count);
ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf,
DJREPORT_SHORT_LENGTH, report_type, reqtype);
kfree(out_buf);
return ret;
}
static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
{
memcpy(rdesc + *rsize, data, size);
*rsize += size;
}
static int logi_dj_ll_parse(struct hid_device *hid)
{
struct dj_device *djdev = hid->driver_data;
unsigned int rsize = 0;
char *rdesc;
int retval;
dbg_hid("%s\n", __func__);
djdev->hdev->version = 0x0111;
djdev->hdev->country = 0x00;
rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL);
if (!rdesc)
return -ENOMEM;
if (djdev->reports_supported & STD_KEYBOARD) {
dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
}
if (djdev->reports_supported & STD_MOUSE) {
dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n",
__func__, djdev->reports_supported);
if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp ||
djdev->dj_receiver_dev->type == recvr_type_mouse_only)
rdcat(rdesc, &rsize, mse_high_res_descriptor,
sizeof(mse_high_res_descriptor));
else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
rdcat(rdesc, &rsize, mse_27mhz_descriptor,
sizeof(mse_27mhz_descriptor));
else if (recvr_type_is_bluetooth(djdev->dj_receiver_dev->type))
rdcat(rdesc, &rsize, mse_bluetooth_descriptor,
sizeof(mse_bluetooth_descriptor));
else
rdcat(rdesc, &rsize, mse_descriptor,
sizeof(mse_descriptor));
}
if (djdev->reports_supported & KBD_MOUSE) {
dbg_hid("%s: sending a kbd-mouse descriptor, reports_supported: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, mse5_bluetooth_descriptor,
sizeof(mse5_bluetooth_descriptor));
}
if (djdev->reports_supported & MULTIMEDIA) {
dbg_hid("%s: sending a multimedia report descriptor: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
}
if (djdev->reports_supported & POWER_KEYS) {
dbg_hid("%s: sending a power keys report descriptor: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
}
if (djdev->reports_supported & MEDIA_CENTER) {
dbg_hid("%s: sending a media center report descriptor: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
}
if (djdev->reports_supported & KBD_LEDS) {
dbg_hid("%s: need to send kbd leds report descriptor: %llx\n",
__func__, djdev->reports_supported);
}
if (djdev->reports_supported & HIDPP) {
dbg_hid("%s: sending a HID++ descriptor, reports_supported: %llx\n",
__func__, djdev->reports_supported);
rdcat(rdesc, &rsize, hidpp_descriptor,
sizeof(hidpp_descriptor));
}
retval = hid_parse_report(hid, rdesc, rsize);
kfree(rdesc);
return retval;
}
static int logi_dj_ll_start(struct hid_device *hid)
{
dbg_hid("%s\n", __func__);
return 0;
}
static void logi_dj_ll_stop(struct hid_device *hid)
{
dbg_hid("%s\n", __func__);
}
static bool logi_dj_ll_may_wakeup(struct hid_device *hid)
{
struct dj_device *djdev = hid->driver_data;
struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
return hid_hw_may_wakeup(djrcv_dev->hidpp);
}
static const struct hid_ll_driver logi_dj_ll_driver = {
.parse = logi_dj_ll_parse,
.start = logi_dj_ll_start,
.stop = logi_dj_ll_stop,
.open = logi_dj_ll_open,
.close = logi_dj_ll_close,
.raw_request = logi_dj_ll_raw_request,
.may_wakeup = logi_dj_ll_may_wakeup,
};
static int logi_dj_dj_event(struct hid_device *hdev,
struct hid_report *report, u8 *data,
int size)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
struct dj_report *dj_report = (struct dj_report *) data;
unsigned long flags;
/*
* Here we receive all data coming from iface 2, there are 3 cases:
*
* 1) Data is intended for this driver i. e. data contains arrival,
* departure, etc notifications, in which case we queue them for delayed
* processing by the work queue. We return 1 to hid-core as no further
* processing is required from it.
*
* 2) Data informs a connection change, if the change means rf link
* loss, then we must send a null report to the upper layer to discard
* potentially pressed keys that may be repeated forever by the input
* layer. Return 1 to hid-core as no further processing is required.
*
* 3) Data is an actual input event from a paired DJ device in which
* case we forward it to the correct hid device (via hid_input_report()
* ) and return 1 so hid-core does not anything else with it.
*/
if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
(dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
/*
* Device index is wrong, bail out.
* This driver can ignore safely the receiver notifications,
* so ignore those reports too.
*/
if (dj_report->device_index != DJ_RECEIVER_INDEX)
hid_err(hdev, "%s: invalid device index:%d\n",
__func__, dj_report->device_index);
return false;
}
spin_lock_irqsave(&djrcv_dev->lock, flags);
if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) {
/* received an event for an unknown device, bail out */
logi_dj_recv_queue_notification(djrcv_dev, dj_report);
goto out;
}
switch (dj_report->report_type) {
case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
/* pairing notifications are handled above the switch */
break;
case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
logi_dj_recv_queue_notification(djrcv_dev, dj_report);
break;
case REPORT_TYPE_NOTIF_CONNECTION_STATUS:
if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] ==
STATUS_LINKLOSS) {
logi_dj_recv_forward_null_report(djrcv_dev, dj_report);
}
break;
default:
logi_dj_recv_forward_dj(djrcv_dev, dj_report);
}
out:
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return true;
}
static int logi_dj_hidpp_event(struct hid_device *hdev,
struct hid_report *report, u8 *data,
int size)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
struct hidpp_event *hidpp_report = (struct hidpp_event *) data;
struct dj_device *dj_dev;
unsigned long flags;
u8 device_index = hidpp_report->device_index;
if (device_index == HIDPP_RECEIVER_INDEX) {
/* special case were the device wants to know its unifying
* name */
if (size == HIDPP_REPORT_LONG_LENGTH &&
!memcmp(data, unifying_pairing_answer,
sizeof(unifying_pairing_answer)))
device_index = (data[4] & 0x0F) + 1;
else
return false;
}
/*
* Data is from the HID++ collection, in this case, we forward the
* data to the corresponding child dj device and return 0 to hid-core
* so he data also goes to the hidraw device of the receiver. This
* allows a user space application to implement the full HID++ routing
* via the receiver.
*/
if ((device_index < DJ_DEVICE_INDEX_MIN) ||
(device_index > DJ_DEVICE_INDEX_MAX)) {
/*
* Device index is wrong, bail out.
* This driver can ignore safely the receiver notifications,
* so ignore those reports too.
*/
hid_err(hdev, "%s: invalid device index:%d\n", __func__,
hidpp_report->device_index);
return false;
}
spin_lock_irqsave(&djrcv_dev->lock, flags);
dj_dev = djrcv_dev->paired_dj_devices[device_index];
/*
* With 27 MHz receivers, we do not get an explicit unpair event,
* remove the old device if the user has paired a *different* device.
*/
if (djrcv_dev->type == recvr_type_27mhz && dj_dev &&
hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED &&
hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 &&
hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] !=
dj_dev->hdev->product) {
struct dj_workitem workitem = {
.device_index = hidpp_report->device_index,
.type = WORKITEM_TYPE_UNPAIRED,
};
kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
/* logi_hidpp_recv_queue_notif will queue the work */
dj_dev = NULL;
}
if (dj_dev) {
logi_dj_recv_forward_report(dj_dev, data, size);
} else {
if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED)
logi_hidpp_recv_queue_notif(hdev, hidpp_report);
else
logi_dj_recv_queue_unknown_work(djrcv_dev);
}
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
return false;
}
static int logi_dj_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data,
int size)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
dbg_hid("%s, size:%d\n", __func__, size);
if (!djrcv_dev)
return 0;
if (!hdev->report_enum[HID_INPUT_REPORT].numbered) {
if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {
/*
* For the keyboard, we can reuse the same report by
* using the second byte which is constant in the USB
* HID report descriptor.
*/
data[1] = data[0];
data[0] = REPORT_TYPE_KEYBOARD;
logi_dj_recv_forward_input_report(hdev, data, size);
/* restore previous state */
data[0] = data[1];
data[1] = 0;
}
/*
* Mouse-only receivers send unnumbered mouse data. The 27 MHz
* receiver uses 6 byte packets, the nano receiver 8 bytes,
* the lightspeed receiver (Pro X Superlight) 13 bytes.
*/
if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
size <= 13){
u8 mouse_report[14];
/* Prepend report id */
mouse_report[0] = REPORT_TYPE_MOUSE;
memcpy(mouse_report + 1, data, size);
logi_dj_recv_forward_input_report(hdev, mouse_report,
size + 1);
}
return false;
}
switch (data[0]) {
case REPORT_ID_DJ_SHORT:
if (size != DJREPORT_SHORT_LENGTH) {
hid_err(hdev, "Short DJ report bad size (%d)", size);
return false;
}
return logi_dj_dj_event(hdev, report, data, size);
case REPORT_ID_DJ_LONG:
if (size != DJREPORT_LONG_LENGTH) {
hid_err(hdev, "Long DJ report bad size (%d)", size);
return false;
}
return logi_dj_dj_event(hdev, report, data, size);
case REPORT_ID_HIDPP_SHORT:
if (size != HIDPP_REPORT_SHORT_LENGTH) {
hid_err(hdev, "Short HID++ report bad size (%d)", size);
return false;
}
return logi_dj_hidpp_event(hdev, report, data, size);
case REPORT_ID_HIDPP_LONG:
if (size != HIDPP_REPORT_LONG_LENGTH) {
hid_err(hdev, "Long HID++ report bad size (%d)", size);
return false;
}
return logi_dj_hidpp_event(hdev, report, data, size);
}
logi_dj_recv_forward_input_report(hdev, data, size);
return false;
}
static int logi_dj_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct hid_report_enum *rep_enum;
struct hid_report *rep;
struct dj_receiver_dev *djrcv_dev;
struct usb_interface *intf;
unsigned int no_dj_interfaces = 0;
bool has_hidpp = false;
unsigned long flags;
int retval;
/*
* Call to usbhid to fetch the HID descriptors of the current
* interface subsequently call to the hid/hid-core to parse the
* fetched descriptors.
*/
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "%s: parse failed\n", __func__);
return retval;
}
/*
* Some KVMs add an extra interface for e.g. mouse emulation. If we
* treat these as logitech-dj interfaces then this causes input events
* reported through this extra interface to not be reported correctly.
* To avoid this, we treat these as generic-hid devices.
*/
switch (id->driver_data) {
case recvr_type_dj: no_dj_interfaces = 3; break;
case recvr_type_hidpp: no_dj_interfaces = 2; break;
case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break;
case recvr_type_mouse_only: no_dj_interfaces = 2; break;
case recvr_type_27mhz: no_dj_interfaces = 2; break;
case recvr_type_bluetooth: no_dj_interfaces = 2; break;
case recvr_type_dinovo: no_dj_interfaces = 2; break;
}
if (hid_is_usb(hdev)) {
intf = to_usb_interface(hdev->dev.parent);
if (intf && intf->altsetting->desc.bInterfaceNumber >=
no_dj_interfaces) {
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
}
rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
/* no input reports, bail out */
if (list_empty(&rep_enum->report_list))
return -ENODEV;
/*
* Check for the HID++ application.
* Note: we should theoretically check for HID++ and DJ
* collections, but this will do.
*/
list_for_each_entry(rep, &rep_enum->report_list, list) {
if (rep->application == 0xff000001)
has_hidpp = true;
}
/*
* Ignore interfaces without DJ/HID++ collection, they will not carry
* any data, dont create any hid_device for them.
*/
if (!has_hidpp && id->driver_data == recvr_type_dj)
return -ENODEV;
/* get the current application attached to the node */
rep = list_first_entry(&rep_enum->report_list, struct hid_report, list);
djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,
rep->application, has_hidpp);
if (!djrcv_dev) {
hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__);
return -ENOMEM;
}
if (!rep_enum->numbered)
djrcv_dev->unnumbered_application = rep->application;
/* Starts the usb device and connects to upper interfaces hiddev and
* hidraw */
retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV);
if (retval) {
hid_err(hdev, "%s: hid_hw_start returned error\n", __func__);
goto hid_hw_start_fail;
}
if (has_hidpp) {
retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
if (retval < 0) {
hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
__func__, retval);
goto switch_to_dj_mode_fail;
}
}
/* This is enabling the polling urb on the IN endpoint */
retval = hid_hw_open(hdev);
if (retval < 0) {
hid_err(hdev, "%s: hid_hw_open returned error:%d\n",
__func__, retval);
goto llopen_failed;
}
/* Allow incoming packets to arrive: */
hid_device_io_start(hdev);
if (has_hidpp) {
spin_lock_irqsave(&djrcv_dev->lock, flags);
djrcv_dev->ready = true;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
retval = logi_dj_recv_query_paired_devices(djrcv_dev);
if (retval < 0) {
hid_err(hdev, "%s: logi_dj_recv_query_paired_devices error:%d\n",
__func__, retval);
/*
* This can happen with a KVM, let the probe succeed,
* logi_dj_recv_queue_unknown_work will retry later.
*/
}
}
return 0;
llopen_failed:
switch_to_dj_mode_fail:
hid_hw_stop(hdev);
hid_hw_start_fail:
dj_put_receiver_dev(hdev);
return retval;
}
#ifdef CONFIG_PM
static int logi_dj_reset_resume(struct hid_device *hdev)
{
int retval;
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
if (!djrcv_dev || djrcv_dev->hidpp != hdev)
return 0;
retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
if (retval < 0) {
hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
__func__, retval);
}
return 0;
}
#endif
static void logi_dj_remove(struct hid_device *hdev)
{
struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
struct dj_device *dj_dev;
unsigned long flags;
int i;
dbg_hid("%s\n", __func__);
if (!djrcv_dev)
return hid_hw_stop(hdev);
/*
* This ensures that if the work gets requeued from another
* interface of the same receiver it will be a no-op.
*/
spin_lock_irqsave(&djrcv_dev->lock, flags);
djrcv_dev->ready = false;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
cancel_work_sync(&djrcv_dev->work);
hid_hw_close(hdev);
hid_hw_stop(hdev);
/*
* For proper operation we need access to all interfaces, so we destroy
* the paired devices when we're unbound from any interface.
*
* Note we may still be bound to other interfaces, sharing the same
* djrcv_dev, so we need locking here.
*/
for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
spin_lock_irqsave(&djrcv_dev->lock, flags);
dj_dev = djrcv_dev->paired_dj_devices[i];
djrcv_dev->paired_dj_devices[i] = NULL;
spin_unlock_irqrestore(&djrcv_dev->lock, flags);
if (dj_dev != NULL) {
hid_destroy_device(dj_dev->hdev);
kfree(dj_dev);
}
}
dj_put_receiver_dev(hdev);
}
static const struct hid_device_id logi_dj_receivers[] = {
{ /* Logitech unifying receiver (0xc52b) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
.driver_data = recvr_type_dj},
{ /* Logitech unifying receiver (0xc532) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
.driver_data = recvr_type_dj},
{ /* Logitech Nano mouse only receiver (0xc52f) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
.driver_data = recvr_type_mouse_only},
{ /* Logitech Nano (non DJ) receiver (0xc534) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
.driver_data = recvr_type_hidpp},
{ /* Logitech G700(s) receiver (0xc531) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_G700_RECEIVER),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech G602 receiver (0xc537) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
0xc537),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech lightspeed receiver (0xc539) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech powerplay receiver (0xc53a) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech lightspeed receiver (0xc53f) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech lightspeed receiver (0xc547) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
.driver_data = recvr_type_27mhz},
{ /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_S510_RECEIVER_2),
.driver_data = recvr_type_27mhz},
{ /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER),
.driver_data = recvr_type_27mhz},
{ /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. (0xc70e) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV),
.driver_data = recvr_type_bluetooth},
{ /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. (0xc70a) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_bluetooth},
{ /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. (0xc71b) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV),
.driver_data = recvr_type_bluetooth},
{ /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. (0xc71c) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_bluetooth},
{ /* Logitech Dinovo Edge HID++ / bluetooth receiver keyboard intf. (0xc713) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV),
.driver_data = recvr_type_dinovo},
{ /* Logitech Dinovo Edge HID++ / bluetooth receiver mouse intf. (0xc714) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_dinovo},
{ /* Logitech DiNovo Mini HID++ / bluetooth receiver mouse intf. (0xc71e) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV),
.driver_data = recvr_type_dinovo},
{ /* Logitech DiNovo Mini HID++ / bluetooth receiver keyboard intf. (0xc71f) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_dinovo},
{}
};
MODULE_DEVICE_TABLE(hid, logi_dj_receivers);
static struct hid_driver logi_djreceiver_driver = {
.name = "logitech-djreceiver",
.id_table = logi_dj_receivers,
.probe = logi_dj_probe,
.remove = logi_dj_remove,
.raw_event = logi_dj_raw_event,
#ifdef CONFIG_PM
.reset_resume = logi_dj_reset_resume,
#endif
};
module_hid_driver(logi_djreceiver_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Logitech");
MODULE_AUTHOR("Nestor Lopez Casado");
MODULE_AUTHOR("[email protected]");
| linux-master | drivers/hid/hid-logitech-dj.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for the Prodikeys PC-MIDI Keyboard
* providing midi & extra multimedia keys functionality
*
* Copyright (c) 2009 Don Prince <[email protected]>
*
* Controls for Octave Shift Up/Down, Channel, and
* Sustain Duration available via sysfs.
*/
/*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/mutex.h>
#include <linux/hid.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/rawmidi.h>
#include "hid-ids.h"
#define pk_debug(format, arg...) \
pr_debug("hid-prodikeys: " format "\n" , ## arg)
#define pk_error(format, arg...) \
pr_err("hid-prodikeys: " format "\n" , ## arg)
struct pcmidi_snd;
struct pk_device {
unsigned long quirks;
struct hid_device *hdev;
struct pcmidi_snd *pm; /* pcmidi device context */
};
struct pcmidi_sustain {
unsigned long in_use;
struct pcmidi_snd *pm;
struct timer_list timer;
unsigned char status;
unsigned char note;
unsigned char velocity;
};
#define PCMIDI_SUSTAINED_MAX 32
struct pcmidi_snd {
struct pk_device *pk;
unsigned short ifnum;
struct hid_report *pcmidi_report6;
struct input_dev *input_ep82;
unsigned short midi_mode;
unsigned short midi_sustain_mode;
unsigned short midi_sustain;
unsigned short midi_channel;
short midi_octave;
struct pcmidi_sustain sustained_notes[PCMIDI_SUSTAINED_MAX];
unsigned short fn_state;
unsigned short last_key[24];
spinlock_t rawmidi_in_lock;
struct snd_card *card;
struct snd_rawmidi *rwmidi;
struct snd_rawmidi_substream *in_substream;
struct snd_rawmidi_substream *out_substream;
unsigned long in_triggered;
unsigned long out_active;
};
#define PK_QUIRK_NOGET 0x00010000
#define PCMIDI_MIDDLE_C 60
#define PCMIDI_CHANNEL_MIN 0
#define PCMIDI_CHANNEL_MAX 15
#define PCMIDI_OCTAVE_MIN (-2)
#define PCMIDI_OCTAVE_MAX 2
#define PCMIDI_SUSTAIN_MIN 0
#define PCMIDI_SUSTAIN_MAX 5000
static const char shortname[] = "PC-MIDI";
static const char longname[] = "Prodikeys PC-MIDI Keyboard";
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
module_param_array(index, int, NULL, 0444);
module_param_array(id, charp, NULL, 0444);
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the PC-MIDI virtual audio driver");
MODULE_PARM_DESC(id, "ID string for the PC-MIDI virtual audio driver");
MODULE_PARM_DESC(enable, "Enable for the PC-MIDI virtual audio driver");
/* Output routine for the sysfs channel file */
static ssize_t show_channel(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
dbg_hid("pcmidi sysfs read channel=%u\n", pk->pm->midi_channel);
return sprintf(buf, "%u (min:%u, max:%u)\n", pk->pm->midi_channel,
PCMIDI_CHANNEL_MIN, PCMIDI_CHANNEL_MAX);
}
/* Input routine for the sysfs channel file */
static ssize_t store_channel(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
unsigned channel = 0;
if (sscanf(buf, "%u", &channel) > 0 && channel <= PCMIDI_CHANNEL_MAX) {
dbg_hid("pcmidi sysfs write channel=%u\n", channel);
pk->pm->midi_channel = channel;
return strlen(buf);
}
return -EINVAL;
}
static DEVICE_ATTR(channel, S_IRUGO | S_IWUSR | S_IWGRP , show_channel,
store_channel);
static struct device_attribute *sysfs_device_attr_channel = {
&dev_attr_channel,
};
/* Output routine for the sysfs sustain file */
static ssize_t show_sustain(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
dbg_hid("pcmidi sysfs read sustain=%u\n", pk->pm->midi_sustain);
return sprintf(buf, "%u (off:%u, max:%u (ms))\n", pk->pm->midi_sustain,
PCMIDI_SUSTAIN_MIN, PCMIDI_SUSTAIN_MAX);
}
/* Input routine for the sysfs sustain file */
static ssize_t store_sustain(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
unsigned sustain = 0;
if (sscanf(buf, "%u", &sustain) > 0 && sustain <= PCMIDI_SUSTAIN_MAX) {
dbg_hid("pcmidi sysfs write sustain=%u\n", sustain);
pk->pm->midi_sustain = sustain;
pk->pm->midi_sustain_mode =
(0 == sustain || !pk->pm->midi_mode) ? 0 : 1;
return strlen(buf);
}
return -EINVAL;
}
static DEVICE_ATTR(sustain, S_IRUGO | S_IWUSR | S_IWGRP, show_sustain,
store_sustain);
static struct device_attribute *sysfs_device_attr_sustain = {
&dev_attr_sustain,
};
/* Output routine for the sysfs octave file */
static ssize_t show_octave(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
dbg_hid("pcmidi sysfs read octave=%d\n", pk->pm->midi_octave);
return sprintf(buf, "%d (min:%d, max:%d)\n", pk->pm->midi_octave,
PCMIDI_OCTAVE_MIN, PCMIDI_OCTAVE_MAX);
}
/* Input routine for the sysfs octave file */
static ssize_t store_octave(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct pk_device *pk = hid_get_drvdata(hdev);
int octave = 0;
if (sscanf(buf, "%d", &octave) > 0 &&
octave >= PCMIDI_OCTAVE_MIN && octave <= PCMIDI_OCTAVE_MAX) {
dbg_hid("pcmidi sysfs write octave=%d\n", octave);
pk->pm->midi_octave = octave;
return strlen(buf);
}
return -EINVAL;
}
static DEVICE_ATTR(octave, S_IRUGO | S_IWUSR | S_IWGRP, show_octave,
store_octave);
static struct device_attribute *sysfs_device_attr_octave = {
&dev_attr_octave,
};
static void pcmidi_send_note(struct pcmidi_snd *pm,
unsigned char status, unsigned char note, unsigned char velocity)
{
unsigned long flags;
unsigned char buffer[3];
buffer[0] = status;
buffer[1] = note;
buffer[2] = velocity;
spin_lock_irqsave(&pm->rawmidi_in_lock, flags);
if (!pm->in_substream)
goto drop_note;
if (!test_bit(pm->in_substream->number, &pm->in_triggered))
goto drop_note;
snd_rawmidi_receive(pm->in_substream, buffer, 3);
drop_note:
spin_unlock_irqrestore(&pm->rawmidi_in_lock, flags);
return;
}
static void pcmidi_sustained_note_release(struct timer_list *t)
{
struct pcmidi_sustain *pms = from_timer(pms, t, timer);
pcmidi_send_note(pms->pm, pms->status, pms->note, pms->velocity);
pms->in_use = 0;
}
static void init_sustain_timers(struct pcmidi_snd *pm)
{
struct pcmidi_sustain *pms;
unsigned i;
for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) {
pms = &pm->sustained_notes[i];
pms->in_use = 0;
pms->pm = pm;
timer_setup(&pms->timer, pcmidi_sustained_note_release, 0);
}
}
static void stop_sustain_timers(struct pcmidi_snd *pm)
{
struct pcmidi_sustain *pms;
unsigned i;
for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) {
pms = &pm->sustained_notes[i];
pms->in_use = 1;
del_timer_sync(&pms->timer);
}
}
static int pcmidi_get_output_report(struct pcmidi_snd *pm)
{
struct hid_device *hdev = pm->pk->hdev;
struct hid_report *report;
list_for_each_entry(report,
&hdev->report_enum[HID_OUTPUT_REPORT].report_list, list) {
if (!(6 == report->id))
continue;
if (report->maxfield < 1) {
hid_err(hdev, "output report is empty\n");
break;
}
if (report->field[0]->report_count != 2) {
hid_err(hdev, "field count too low\n");
break;
}
pm->pcmidi_report6 = report;
return 0;
}
/* should never get here */
return -ENODEV;
}
static void pcmidi_submit_output_report(struct pcmidi_snd *pm, int state)
{
struct hid_device *hdev = pm->pk->hdev;
struct hid_report *report = pm->pcmidi_report6;
report->field[0]->value[0] = 0x01;
report->field[0]->value[1] = state;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}
static int pcmidi_handle_report1(struct pcmidi_snd *pm, u8 *data)
{
u32 bit_mask;
bit_mask = data[1];
bit_mask = (bit_mask << 8) | data[2];
bit_mask = (bit_mask << 8) | data[3];
dbg_hid("pcmidi mode: %d\n", pm->midi_mode);
/*KEY_MAIL or octave down*/
if (pm->midi_mode && bit_mask == 0x004000) {
/* octave down */
pm->midi_octave--;
if (pm->midi_octave < -2)
pm->midi_octave = -2;
dbg_hid("pcmidi mode: %d octave: %d\n",
pm->midi_mode, pm->midi_octave);
return 1;
}
/*KEY_WWW or sustain*/
else if (pm->midi_mode && bit_mask == 0x000004) {
/* sustain on/off*/
pm->midi_sustain_mode ^= 0x1;
return 1;
}
return 0; /* continue key processing */
}
static int pcmidi_handle_report3(struct pcmidi_snd *pm, u8 *data, int size)
{
struct pcmidi_sustain *pms;
unsigned i, j;
unsigned char status, note, velocity;
unsigned num_notes = (size-1)/2;
for (j = 0; j < num_notes; j++) {
note = data[j*2+1];
velocity = data[j*2+2];
if (note < 0x81) { /* note on */
status = 128 + 16 + pm->midi_channel; /* 1001nnnn */
note = note - 0x54 + PCMIDI_MIDDLE_C +
(pm->midi_octave * 12);
if (0 == velocity)
velocity = 1; /* force note on */
} else { /* note off */
status = 128 + pm->midi_channel; /* 1000nnnn */
note = note - 0x94 + PCMIDI_MIDDLE_C +
(pm->midi_octave*12);
if (pm->midi_sustain_mode) {
for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) {
pms = &pm->sustained_notes[i];
if (!pms->in_use) {
pms->status = status;
pms->note = note;
pms->velocity = velocity;
pms->in_use = 1;
mod_timer(&pms->timer,
jiffies +
msecs_to_jiffies(pm->midi_sustain));
return 1;
}
}
}
}
pcmidi_send_note(pm, status, note, velocity);
}
return 1;
}
static int pcmidi_handle_report4(struct pcmidi_snd *pm, u8 *data)
{
unsigned key;
u32 bit_mask;
u32 bit_index;
bit_mask = data[1];
bit_mask = (bit_mask << 8) | data[2];
bit_mask = (bit_mask << 8) | data[3];
/* break keys */
for (bit_index = 0; bit_index < 24; bit_index++) {
if (!((0x01 << bit_index) & bit_mask)) {
input_event(pm->input_ep82, EV_KEY,
pm->last_key[bit_index], 0);
pm->last_key[bit_index] = 0;
}
}
/* make keys */
for (bit_index = 0; bit_index < 24; bit_index++) {
key = 0;
switch ((0x01 << bit_index) & bit_mask) {
case 0x000010: /* Fn lock*/
pm->fn_state ^= 0x000010;
if (pm->fn_state)
pcmidi_submit_output_report(pm, 0xc5);
else
pcmidi_submit_output_report(pm, 0xc6);
continue;
case 0x020000: /* midi launcher..send a key (qwerty) or not? */
pcmidi_submit_output_report(pm, 0xc1);
pm->midi_mode ^= 0x01;
dbg_hid("pcmidi mode: %d\n", pm->midi_mode);
continue;
case 0x100000: /* KEY_MESSENGER or octave up */
dbg_hid("pcmidi mode: %d\n", pm->midi_mode);
if (pm->midi_mode) {
pm->midi_octave++;
if (pm->midi_octave > 2)
pm->midi_octave = 2;
dbg_hid("pcmidi mode: %d octave: %d\n",
pm->midi_mode, pm->midi_octave);
continue;
} else
key = KEY_MESSENGER;
break;
case 0x400000:
key = KEY_CALENDAR;
break;
case 0x080000:
key = KEY_ADDRESSBOOK;
break;
case 0x040000:
key = KEY_DOCUMENTS;
break;
case 0x800000:
key = KEY_WORDPROCESSOR;
break;
case 0x200000:
key = KEY_SPREADSHEET;
break;
case 0x010000:
key = KEY_COFFEE;
break;
case 0x000100:
key = KEY_HELP;
break;
case 0x000200:
key = KEY_SEND;
break;
case 0x000400:
key = KEY_REPLY;
break;
case 0x000800:
key = KEY_FORWARDMAIL;
break;
case 0x001000:
key = KEY_NEW;
break;
case 0x002000:
key = KEY_OPEN;
break;
case 0x004000:
key = KEY_CLOSE;
break;
case 0x008000:
key = KEY_SAVE;
break;
case 0x000001:
key = KEY_UNDO;
break;
case 0x000002:
key = KEY_REDO;
break;
case 0x000004:
key = KEY_SPELLCHECK;
break;
case 0x000008:
key = KEY_PRINT;
break;
}
if (key) {
input_event(pm->input_ep82, EV_KEY, key, 1);
pm->last_key[bit_index] = key;
}
}
return 1;
}
static int pcmidi_handle_report(
struct pcmidi_snd *pm, unsigned report_id, u8 *data, int size)
{
int ret = 0;
switch (report_id) {
case 0x01: /* midi keys (qwerty)*/
ret = pcmidi_handle_report1(pm, data);
break;
case 0x03: /* midi keyboard (musical)*/
ret = pcmidi_handle_report3(pm, data, size);
break;
case 0x04: /* multimedia/midi keys (qwerty)*/
ret = pcmidi_handle_report4(pm, data);
break;
}
return ret;
}
static void pcmidi_setup_extra_keys(
struct pcmidi_snd *pm, struct input_dev *input)
{
/* reassigned functionality for N/A keys
MY PICTURES => KEY_WORDPROCESSOR
MY MUSIC=> KEY_SPREADSHEET
*/
static const unsigned int keys[] = {
KEY_FN,
KEY_MESSENGER, KEY_CALENDAR,
KEY_ADDRESSBOOK, KEY_DOCUMENTS,
KEY_WORDPROCESSOR,
KEY_SPREADSHEET,
KEY_COFFEE,
KEY_HELP, KEY_SEND,
KEY_REPLY, KEY_FORWARDMAIL,
KEY_NEW, KEY_OPEN,
KEY_CLOSE, KEY_SAVE,
KEY_UNDO, KEY_REDO,
KEY_SPELLCHECK, KEY_PRINT,
0
};
const unsigned int *pkeys = &keys[0];
unsigned short i;
if (pm->ifnum != 1) /* only set up ONCE for interace 1 */
return;
pm->input_ep82 = input;
for (i = 0; i < 24; i++)
pm->last_key[i] = 0;
while (*pkeys != 0) {
set_bit(*pkeys, pm->input_ep82->keybit);
++pkeys;
}
}
static int pcmidi_set_operational(struct pcmidi_snd *pm)
{
int rc;
if (pm->ifnum != 1)
return 0; /* only set up ONCE for interace 1 */
rc = pcmidi_get_output_report(pm);
if (rc < 0)
return rc;
pcmidi_submit_output_report(pm, 0xc1);
return 0;
}
static int pcmidi_snd_free(struct snd_device *dev)
{
return 0;
}
static int pcmidi_in_open(struct snd_rawmidi_substream *substream)
{
struct pcmidi_snd *pm = substream->rmidi->private_data;
dbg_hid("pcmidi in open\n");
pm->in_substream = substream;
return 0;
}
static int pcmidi_in_close(struct snd_rawmidi_substream *substream)
{
dbg_hid("pcmidi in close\n");
return 0;
}
static void pcmidi_in_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct pcmidi_snd *pm = substream->rmidi->private_data;
dbg_hid("pcmidi in trigger %d\n", up);
pm->in_triggered = up;
}
static const struct snd_rawmidi_ops pcmidi_in_ops = {
.open = pcmidi_in_open,
.close = pcmidi_in_close,
.trigger = pcmidi_in_trigger
};
static int pcmidi_snd_initialise(struct pcmidi_snd *pm)
{
static int dev;
struct snd_card *card;
struct snd_rawmidi *rwmidi;
int err;
static struct snd_device_ops ops = {
.dev_free = pcmidi_snd_free,
};
if (pm->ifnum != 1)
return 0; /* only set up midi device ONCE for interace 1 */
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
/* Setup sound card */
err = snd_card_new(&pm->pk->hdev->dev, index[dev], id[dev],
THIS_MODULE, 0, &card);
if (err < 0) {
pk_error("failed to create pc-midi sound card\n");
err = -ENOMEM;
goto fail;
}
pm->card = card;
/* Setup sound device */
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pm, &ops);
if (err < 0) {
pk_error("failed to create pc-midi sound device: error %d\n",
err);
goto fail;
}
strncpy(card->driver, shortname, sizeof(card->driver));
strncpy(card->shortname, shortname, sizeof(card->shortname));
strncpy(card->longname, longname, sizeof(card->longname));
/* Set up rawmidi */
err = snd_rawmidi_new(card, card->shortname, 0,
0, 1, &rwmidi);
if (err < 0) {
pk_error("failed to create pc-midi rawmidi device: error %d\n",
err);
goto fail;
}
pm->rwmidi = rwmidi;
strncpy(rwmidi->name, card->shortname, sizeof(rwmidi->name));
rwmidi->info_flags = SNDRV_RAWMIDI_INFO_INPUT;
rwmidi->private_data = pm;
snd_rawmidi_set_ops(rwmidi, SNDRV_RAWMIDI_STREAM_INPUT,
&pcmidi_in_ops);
/* create sysfs variables */
err = device_create_file(&pm->pk->hdev->dev,
sysfs_device_attr_channel);
if (err < 0) {
pk_error("failed to create sysfs attribute channel: error %d\n",
err);
goto fail;
}
err = device_create_file(&pm->pk->hdev->dev,
sysfs_device_attr_sustain);
if (err < 0) {
pk_error("failed to create sysfs attribute sustain: error %d\n",
err);
goto fail_attr_sustain;
}
err = device_create_file(&pm->pk->hdev->dev,
sysfs_device_attr_octave);
if (err < 0) {
pk_error("failed to create sysfs attribute octave: error %d\n",
err);
goto fail_attr_octave;
}
spin_lock_init(&pm->rawmidi_in_lock);
init_sustain_timers(pm);
err = pcmidi_set_operational(pm);
if (err < 0) {
pk_error("failed to find output report\n");
goto fail_register;
}
/* register it */
err = snd_card_register(card);
if (err < 0) {
pk_error("failed to register pc-midi sound card: error %d\n",
err);
goto fail_register;
}
dbg_hid("pcmidi_snd_initialise finished ok\n");
return 0;
fail_register:
stop_sustain_timers(pm);
device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_octave);
fail_attr_octave:
device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_sustain);
fail_attr_sustain:
device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_channel);
fail:
if (pm->card) {
snd_card_free(pm->card);
pm->card = NULL;
}
return err;
}
static int pcmidi_snd_terminate(struct pcmidi_snd *pm)
{
if (pm->card) {
stop_sustain_timers(pm);
device_remove_file(&pm->pk->hdev->dev,
sysfs_device_attr_channel);
device_remove_file(&pm->pk->hdev->dev,
sysfs_device_attr_sustain);
device_remove_file(&pm->pk->hdev->dev,
sysfs_device_attr_octave);
snd_card_disconnect(pm->card);
snd_card_free_when_closed(pm->card);
}
return 0;
}
/*
* PC-MIDI report descriptor for report id is wrong.
*/
static __u8 *pk_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == 178 &&
rdesc[111] == 0x06 && rdesc[112] == 0x00 &&
rdesc[113] == 0xff) {
hid_info(hdev,
"fixing up pc-midi keyboard report descriptor\n");
rdesc[144] = 0x18; /* report 4: was 0x10 report count */
}
return rdesc;
}
static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct pk_device *pk = hid_get_drvdata(hdev);
struct pcmidi_snd *pm;
pm = pk->pm;
if (HID_UP_MSVENDOR == (usage->hid & HID_USAGE_PAGE) &&
1 == pm->ifnum) {
pcmidi_setup_extra_keys(pm, hi->input);
return 0;
}
return 0;
}
static int pk_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct pk_device *pk = hid_get_drvdata(hdev);
int ret = 0;
if (1 == pk->pm->ifnum) {
if (report->id == data[0])
switch (report->id) {
case 0x01: /* midi keys (qwerty)*/
case 0x03: /* midi keyboard (musical)*/
case 0x04: /* extra/midi keys (qwerty)*/
ret = pcmidi_handle_report(pk->pm,
report->id, data, size);
break;
}
}
return ret;
}
static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct usb_interface *intf;
unsigned short ifnum;
unsigned long quirks = id->driver_data;
struct pk_device *pk;
struct pcmidi_snd *pm = NULL;
if (!hid_is_usb(hdev))
return -EINVAL;
intf = to_usb_interface(hdev->dev.parent);
ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
pk = kzalloc(sizeof(*pk), GFP_KERNEL);
if (pk == NULL) {
hid_err(hdev, "can't alloc descriptor\n");
return -ENOMEM;
}
pk->hdev = hdev;
pm = kzalloc(sizeof(*pm), GFP_KERNEL);
if (pm == NULL) {
hid_err(hdev, "can't alloc descriptor\n");
ret = -ENOMEM;
goto err_free_pk;
}
pm->pk = pk;
pk->pm = pm;
pm->ifnum = ifnum;
hid_set_drvdata(hdev, pk);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid parse failed\n");
goto err_free;
}
if (quirks & PK_QUIRK_NOGET) { /* hid_parse cleared all the quirks */
hdev->quirks |= HID_QUIRK_NOGET;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
ret = pcmidi_snd_initialise(pm);
if (ret < 0)
goto err_stop;
return 0;
err_stop:
hid_hw_stop(hdev);
err_free:
kfree(pm);
err_free_pk:
kfree(pk);
return ret;
}
static void pk_remove(struct hid_device *hdev)
{
struct pk_device *pk = hid_get_drvdata(hdev);
struct pcmidi_snd *pm;
pm = pk->pm;
if (pm) {
pcmidi_snd_terminate(pm);
kfree(pm);
}
hid_hw_stop(hdev);
kfree(pk);
}
static const struct hid_device_id pk_devices[] = {
{HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS,
USB_DEVICE_ID_PRODIKEYS_PCMIDI),
.driver_data = PK_QUIRK_NOGET},
{ }
};
MODULE_DEVICE_TABLE(hid, pk_devices);
static struct hid_driver pk_driver = {
.name = "prodikeys",
.id_table = pk_devices,
.report_fixup = pk_report_fixup,
.input_mapping = pk_input_mapping,
.raw_event = pk_raw_event,
.probe = pk_probe,
.remove = pk_remove,
};
module_hid_driver(pk_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-prodikeys.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Waltop devices not fully compliant with HID standard
*
* Copyright (c) 2010 Nikolai Kondrashov
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* There exists an official driver on the manufacturer's website, which
* wasn't submitted to the kernel, for some reason. The official driver
* doesn't seem to support extra features of some tablets, like wheels.
*
* It shows that the feature report ID 2 could be used to control any waltop
* tablet input mode, switching it between "default", "tablet" and "ink".
*
* This driver only uses "default" mode for all the supported tablets. This
* mode tries to be HID-compatible (not very successfully), but cripples the
* resolution of some tablets.
*
* The "tablet" mode uses some proprietary, yet decipherable protocol, which
* represents the correct resolution, but is possibly HID-incompatible (i.e.
* indescribable by a report descriptor).
*
* The purpose of the "ink" mode is unknown.
*
* The feature reports needed for switching to each mode are these:
*
* 02 16 00 default
* 02 16 01 tablet
* 02 16 02 ink
*/
/* Size of the original report descriptor of Slim Tablet 5.8 inch */
#define SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE 222
/* Fixed Slim Tablet 5.8 inch descriptor */
static __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x88, 0x13, /* Physical Maximum (5000), */
0x26, 0x10, 0x27, /* Logical Maximum (10000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xB8, 0x0B, /* Physical Maximum (3000), */
0x26, 0x70, 0x17, /* Logical Maximum (6000), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Slim Tablet 12.1 inch */
#define SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE 269
/* Fixed Slim Tablet 12.1 inch descriptor */
static __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x6A, 0x18, /* Physical Maximum (6250), */
0x26, 0xD4, 0x30, /* Logical Maximum (12500), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Q Pad */
#define Q_PAD_RDESC_ORIG_SIZE 241
/* Fixed Q Pad descriptor */
static __u8 q_pad_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0x00, 0x30, /* Logical Maximum (12288), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x94, 0x11, /* Physical Maximum (4500), */
0x26, 0x00, 0x24, /* Logical Maximum (9216), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of tablet with PID 0038 */
#define PID_0038_RDESC_ORIG_SIZE 241
/*
* Fixed report descriptor for tablet with PID 0038.
*/
static __u8 pid_0038_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x2E, 0x22, /* Physical Maximum (8750), */
0x26, 0x00, 0x46, /* Logical Maximum (17920), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x82, 0x14, /* Physical Maximum (5250), */
0x26, 0x00, 0x2A, /* Logical Maximum (10752), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Media Tablet 10.6 inch */
#define MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE 300
/* Fixed Media Tablet 10.6 inch descriptor */
static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x75, 0x01, /* Report Size (1), */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x28, 0x23, /* Physical Maximum (9000), */
0x26, 0x50, 0x46, /* Logical Maximum (18000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x7C, 0x15, /* Physical Maximum (5500), */
0x26, 0xF8, 0x2A, /* Logical Maximum (11000), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x02, /* Report Count (2), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x38, /* Usage (Wheel), */
0x0B, 0x38, 0x02, /* Usage (Consumer AC Pan), */
0x0C, 0x00,
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x03, /* Input (Constant, Variable), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x09, 0xB6, /* Usage (Scan Previous Track), */
0x09, 0xB5, /* Usage (Scan Next Track), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x15, 0x0C, /* Logical Minimum (12), */
0x25, 0x17, /* Logical Maximum (23), */
0x75, 0x05, /* Report Size (5), */
0x80, /* Input, */
0x75, 0x03, /* Report Size (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x20, /* Report Size (32), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x75, 0x01, /* Report Size (1), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x09, 0xE2, /* Usage (Mute), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x35, /* Report Count (53), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Media Tablet 14.1 inch */
#define MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE 309
/* Fixed Media Tablet 14.1 inch descriptor */
static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x75, 0x01, /* Report Size (1), */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0xE0, 0x2E, /* Physical Maximum (12000), */
0x26, 0xFF, 0x3F, /* Logical Maximum (16383), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x52, 0x1C, /* Physical Maximum (7250), */
0x26, 0xFF, 0x3F, /* Logical Maximum (16383), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x02, /* Report Count (2), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x38, /* Usage (Wheel), */
0x0B, 0x38, 0x02, /* Usage (Consumer AC Pan), */
0x0C, 0x00,
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x03, /* Input (Constant, Variable), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x09, 0xB6, /* Usage (Scan Previous Track), */
0x09, 0xB5, /* Usage (Scan Next Track), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x15, 0x0C, /* Logical Minimum (12), */
0x25, 0x17, /* Logical Maximum (23), */
0x75, 0x05, /* Report Size (5), */
0x80, /* Input, */
0x75, 0x03, /* Report Size (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x20, /* Report Size (32), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x75, 0x01, /* Report Size (1), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x09, 0xE2, /* Usage (Mute), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x06, /* Input (Variable, Relative), */
0x75, 0x05, /* Report Size (5), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Sirius Battery Free Tablet */
#define SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE 335
/* Fixed Sirius Battery Free Tablet descriptor */
static __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x02, /* Report Size (2), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x80, /* Input, */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x3C, /* Usage (Invert), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x14, /* Logical Minimum (0), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0xE0, 0x2E, /* Logical Maximum (12000), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x09, 0x30, /* Usage (Tip Pressure), */
0x81, 0x02, /* Input (Variable), */
0xA4, /* Push, */
0x55, 0xFE, /* Unit Exponent (-2), */
0x65, 0x12, /* Unit (Radians), */
0x35, 0x97, /* Physical Minimum (-105), */
0x45, 0x69, /* Physical Maximum (105), */
0x15, 0x97, /* Logical Minimum (-105), */
0x25, 0x69, /* Logical Maximum (105), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x09, 0x3D, /* Usage (X Tilt), */
0x09, 0x3E, /* Usage (Y Tilt), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0x18, /* Usage Minimum (None), */
0x29, 0x65, /* Usage Maximum (KB Application), */
0x14, /* Logical Minimum (0), */
0x25, 0x65, /* Logical Maximum (101), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x05, /* Report Count (5), */
0x80, /* Input, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x06, /* Report Size (6), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH:
if (*rsize == SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE) {
rdesc = slim_tablet_5_8_inch_rdesc_fixed;
*rsize = sizeof(slim_tablet_5_8_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH:
if (*rsize == SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE) {
rdesc = slim_tablet_12_1_inch_rdesc_fixed;
*rsize = sizeof(slim_tablet_12_1_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_Q_PAD:
if (*rsize == Q_PAD_RDESC_ORIG_SIZE) {
rdesc = q_pad_rdesc_fixed;
*rsize = sizeof(q_pad_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_PID_0038:
if (*rsize == PID_0038_RDESC_ORIG_SIZE) {
rdesc = pid_0038_rdesc_fixed;
*rsize = sizeof(pid_0038_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH:
if (*rsize == MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE) {
rdesc = media_tablet_10_6_inch_rdesc_fixed;
*rsize = sizeof(media_tablet_10_6_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH:
if (*rsize == MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE) {
rdesc = media_tablet_14_1_inch_rdesc_fixed;
*rsize = sizeof(media_tablet_14_1_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET:
if (*rsize == SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE) {
rdesc = sirius_battery_free_tablet_rdesc_fixed;
*rsize = sizeof(sirius_battery_free_tablet_rdesc_fixed);
}
break;
}
return rdesc;
}
static int waltop_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
/* If this is a pen input report */
if (report->type == HID_INPUT_REPORT && report->id == 16 && size >= 8) {
/*
* Ignore reported pressure when a barrel button is pressed,
* because it is rarely correct.
*/
/* If a barrel button is pressed */
if ((data[1] & 0xF) > 1) {
/* Report zero pressure */
data[6] = 0;
data[7] = 0;
}
}
/* If this is a pen input report of Sirius Battery Free Tablet */
if (hdev->product == USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET &&
report->type == HID_INPUT_REPORT &&
report->id == 16 &&
size == 10) {
/*
* The tablet reports tilt as roughly sin(a)*21 (18 means 60
* degrees).
*
* This array stores angles as radians * 100, corresponding to
* reported values up to 60 degrees, as expected by userspace.
*/
static const s8 tilt_to_radians[] = {
0, 5, 10, 14, 19, 24, 29, 34, 40, 45,
50, 56, 62, 68, 74, 81, 88, 96, 105
};
s8 tilt_x = (s8)data[8];
s8 tilt_y = (s8)data[9];
s8 sign_x = tilt_x >= 0 ? 1 : -1;
s8 sign_y = tilt_y >= 0 ? 1 : -1;
tilt_x *= sign_x;
tilt_y *= sign_y;
/*
* Reverse the Y Tilt direction to match the HID standard and
* userspace expectations. See HID Usage Tables v1.12 16.3.2
* Tilt Orientation.
*/
sign_y *= -1;
/*
* This effectively clamps reported tilt to 60 degrees - the
* range expected by userspace
*/
if (tilt_x > ARRAY_SIZE(tilt_to_radians) - 1)
tilt_x = ARRAY_SIZE(tilt_to_radians) - 1;
if (tilt_y > ARRAY_SIZE(tilt_to_radians) - 1)
tilt_y = ARRAY_SIZE(tilt_to_radians) - 1;
data[8] = tilt_to_radians[tilt_x] * sign_x;
data[9] = tilt_to_radians[tilt_y] * sign_y;
}
return 0;
}
static const struct hid_device_id waltop_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_Q_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_PID_0038) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
{ }
};
MODULE_DEVICE_TABLE(hid, waltop_devices);
static struct hid_driver waltop_driver = {
.name = "waltop",
.id_table = waltop_devices,
.report_fixup = waltop_report_fixup,
.raw_event = waltop_raw_event,
};
module_hid_driver(waltop_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-waltop.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for UC-Logic devices not fully compliant with HID standard
*
* Copyright (c) 2010-2014 Nikolai Kondrashov
* Copyright (c) 2013 Martin Rusko
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/timer.h>
#include "usbhid/usbhid.h"
#include "hid-uclogic-params.h"
#include "hid-ids.h"
/**
* uclogic_inrange_timeout - handle pen in-range state timeout.
* Emulate input events normally generated when pen goes out of range for
* tablets which don't report that.
*
* @t: The timer the timeout handler is attached to, stored in a struct
* uclogic_drvdata.
*/
static void uclogic_inrange_timeout(struct timer_list *t)
{
struct uclogic_drvdata *drvdata = from_timer(drvdata, t,
inrange_timer);
struct input_dev *input = drvdata->pen_input;
if (input == NULL)
return;
input_report_abs(input, ABS_PRESSURE, 0);
/* If BTN_TOUCH state is changing */
if (test_bit(BTN_TOUCH, input->key)) {
input_event(input, EV_MSC, MSC_SCAN,
/* Digitizer Tip Switch usage */
0xd0042);
input_report_key(input, BTN_TOUCH, 0);
}
input_report_key(input, BTN_TOOL_PEN, 0);
input_sync(input);
}
static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->desc_ptr != NULL) {
rdesc = drvdata->desc_ptr;
*rsize = drvdata->desc_size;
}
return rdesc;
}
static int uclogic_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage,
unsigned long **bit,
int *max)
{
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
struct uclogic_params *params = &drvdata->params;
/* Discard invalid pen usages */
if (params->pen.usage_invalid && (field->application == HID_DG_PEN))
return -1;
/* Let hid-core decide what to do */
return 0;
}
static int uclogic_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
struct uclogic_params *params = &drvdata->params;
const char *suffix = NULL;
struct hid_field *field;
size_t i;
const struct uclogic_params_frame *frame;
/* no report associated (HID_QUIRK_MULTI_INPUT not set) */
if (!hi->report)
return 0;
/*
* If this is the input corresponding to the pen report
* in need of tweaking.
*/
if (hi->report->id == params->pen.id) {
/* Remember the input device so we can simulate events */
drvdata->pen_input = hi->input;
}
/* If it's one of the frame devices */
for (i = 0; i < ARRAY_SIZE(params->frame_list); i++) {
frame = ¶ms->frame_list[i];
if (hi->report->id == frame->id) {
/* Assign custom suffix, if any */
suffix = frame->suffix;
/*
* Disable EV_MSC reports for touch ring interfaces to
* make the Wacom driver pickup touch ring extents
*/
if (frame->touch_byte > 0)
__clear_bit(EV_MSC, hi->input->evbit);
}
}
if (!suffix) {
field = hi->report->field[0];
switch (field->application) {
case HID_GD_KEYBOARD:
suffix = "Keyboard";
break;
case HID_GD_MOUSE:
suffix = "Mouse";
break;
case HID_GD_KEYPAD:
suffix = "Pad";
break;
case HID_DG_PEN:
case HID_DG_DIGITIZER:
suffix = "Pen";
break;
case HID_CP_CONSUMER_CONTROL:
suffix = "Consumer Control";
break;
case HID_GD_SYSTEM_CONTROL:
suffix = "System Control";
break;
}
}
if (suffix)
hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", hdev->name, suffix);
return 0;
}
static int uclogic_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int rc;
struct uclogic_drvdata *drvdata = NULL;
bool params_initialized = false;
if (!hid_is_usb(hdev))
return -EINVAL;
/*
* libinput requires the pad interface to be on a different node
* than the pen, so use QUIRK_MULTI_INPUT for all tablets.
*/
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
hdev->quirks |= HID_QUIRK_HIDINPUT_FORCE;
/* Allocate and assign driver data */
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
if (drvdata == NULL) {
rc = -ENOMEM;
goto failure;
}
timer_setup(&drvdata->inrange_timer, uclogic_inrange_timeout, 0);
drvdata->re_state = U8_MAX;
drvdata->quirks = id->driver_data;
hid_set_drvdata(hdev, drvdata);
/* Initialize the device and retrieve interface parameters */
rc = uclogic_params_init(&drvdata->params, hdev);
if (rc != 0) {
hid_err(hdev, "failed probing parameters: %d\n", rc);
goto failure;
}
params_initialized = true;
hid_dbg(hdev, "parameters:\n");
uclogic_params_hid_dbg(hdev, &drvdata->params);
if (drvdata->params.invalid) {
hid_info(hdev, "interface is invalid, ignoring\n");
rc = -ENODEV;
goto failure;
}
/* Generate replacement report descriptor */
rc = uclogic_params_get_desc(&drvdata->params,
&drvdata->desc_ptr,
&drvdata->desc_size);
if (rc) {
hid_err(hdev,
"failed generating replacement report descriptor: %d\n",
rc);
goto failure;
}
rc = hid_parse(hdev);
if (rc) {
hid_err(hdev, "parse failed\n");
goto failure;
}
rc = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (rc) {
hid_err(hdev, "hw start failed\n");
goto failure;
}
return 0;
failure:
/* Assume "remove" might not be called if "probe" failed */
if (params_initialized)
uclogic_params_cleanup(&drvdata->params);
return rc;
}
#ifdef CONFIG_PM
static int uclogic_resume(struct hid_device *hdev)
{
int rc;
struct uclogic_params params;
/* Re-initialize the device, but discard parameters */
rc = uclogic_params_init(¶ms, hdev);
if (rc != 0)
hid_err(hdev, "failed to re-initialize the device\n");
else
uclogic_params_cleanup(¶ms);
return rc;
}
#endif
/**
* uclogic_exec_event_hook - if the received event is hooked schedules the
* associated work.
*
* @p: Tablet interface report parameters.
* @event: Raw event.
* @size: The size of event.
*
* Returns:
* Whether the event was hooked or not.
*/
static bool uclogic_exec_event_hook(struct uclogic_params *p, u8 *event, int size)
{
struct uclogic_raw_event_hook *curr;
if (!p->event_hooks)
return false;
list_for_each_entry(curr, &p->event_hooks->list, list) {
if (curr->size == size && memcmp(curr->event, event, size) == 0) {
schedule_work(&curr->work);
return true;
}
}
return false;
}
/**
* uclogic_raw_event_pen - handle raw pen events (pen HID reports).
*
* @drvdata: Driver data.
* @data: Report data buffer, can be modified.
* @size: Report data size, bytes.
*
* Returns:
* Negative value on error (stops event delivery), zero for success.
*/
static int uclogic_raw_event_pen(struct uclogic_drvdata *drvdata,
u8 *data, int size)
{
struct uclogic_params_pen *pen = &drvdata->params.pen;
WARN_ON(drvdata == NULL);
WARN_ON(data == NULL && size != 0);
/* If in-range reports are inverted */
if (pen->inrange ==
UCLOGIC_PARAMS_PEN_INRANGE_INVERTED) {
/* Invert the in-range bit */
data[1] ^= 0x40;
}
/*
* If report contains fragmented high-resolution pen
* coordinates
*/
if (size >= 10 && pen->fragmented_hires) {
u8 pressure_low_byte;
u8 pressure_high_byte;
/* Lift pressure bytes */
pressure_low_byte = data[6];
pressure_high_byte = data[7];
/*
* Move Y coord to make space for high-order X
* coord byte
*/
data[6] = data[5];
data[5] = data[4];
/* Move high-order X coord byte */
data[4] = data[8];
/* Move high-order Y coord byte */
data[7] = data[9];
/* Place pressure bytes */
data[8] = pressure_low_byte;
data[9] = pressure_high_byte;
}
/* If we need to emulate in-range detection */
if (pen->inrange == UCLOGIC_PARAMS_PEN_INRANGE_NONE) {
/* Set in-range bit */
data[1] |= 0x40;
/* (Re-)start in-range timeout */
mod_timer(&drvdata->inrange_timer,
jiffies + msecs_to_jiffies(100));
}
/* If we report tilt and Y direction is flipped */
if (size >= 12 && pen->tilt_y_flipped)
data[11] = -data[11];
return 0;
}
/**
* uclogic_raw_event_frame - handle raw frame events (frame HID reports).
*
* @drvdata: Driver data.
* @frame: The parameters of the frame controls to handle.
* @data: Report data buffer, can be modified.
* @size: Report data size, bytes.
*
* Returns:
* Negative value on error (stops event delivery), zero for success.
*/
static int uclogic_raw_event_frame(
struct uclogic_drvdata *drvdata,
const struct uclogic_params_frame *frame,
u8 *data, int size)
{
WARN_ON(drvdata == NULL);
WARN_ON(data == NULL && size != 0);
/* If need to, and can, set pad device ID for Wacom drivers */
if (frame->dev_id_byte > 0 && frame->dev_id_byte < size) {
/* If we also have a touch ring and the finger left it */
if (frame->touch_byte > 0 && frame->touch_byte < size &&
data[frame->touch_byte] == 0) {
data[frame->dev_id_byte] = 0;
} else {
data[frame->dev_id_byte] = 0xf;
}
}
/* If need to, and can, read rotary encoder state change */
if (frame->re_lsb > 0 && frame->re_lsb / 8 < size) {
unsigned int byte = frame->re_lsb / 8;
unsigned int bit = frame->re_lsb % 8;
u8 change;
u8 prev_state = drvdata->re_state;
/* Read Gray-coded state */
u8 state = (data[byte] >> bit) & 0x3;
/* Encode state change into 2-bit signed integer */
if ((prev_state == 1 && state == 0) ||
(prev_state == 2 && state == 3)) {
change = 1;
} else if ((prev_state == 2 && state == 0) ||
(prev_state == 1 && state == 3)) {
change = 3;
} else {
change = 0;
}
/* Write change */
data[byte] = (data[byte] & ~((u8)3 << bit)) |
(change << bit);
/* Remember state */
drvdata->re_state = state;
}
/* If need to, and can, transform the touch ring reports */
if (frame->touch_byte > 0 && frame->touch_byte < size) {
__s8 value = data[frame->touch_byte];
if (value != 0) {
if (frame->touch_flip_at != 0) {
value = frame->touch_flip_at - value;
if (value <= 0)
value = frame->touch_max + value;
}
data[frame->touch_byte] = value - 1;
}
}
/* If need to, and can, transform the bitmap dial reports */
if (frame->bitmap_dial_byte > 0 && frame->bitmap_dial_byte < size) {
if (data[frame->bitmap_dial_byte] == 2)
data[frame->bitmap_dial_byte] = -1;
}
return 0;
}
static int uclogic_raw_event(struct hid_device *hdev,
struct hid_report *report,
u8 *data, int size)
{
unsigned int report_id = report->id;
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
struct uclogic_params *params = &drvdata->params;
struct uclogic_params_pen_subreport *subreport;
struct uclogic_params_pen_subreport *subreport_list_end;
size_t i;
/* Do not handle anything but input reports */
if (report->type != HID_INPUT_REPORT)
return 0;
if (uclogic_exec_event_hook(params, data, size))
return 0;
while (true) {
/* Tweak pen reports, if necessary */
if ((report_id == params->pen.id) && (size >= 2)) {
subreport_list_end =
params->pen.subreport_list +
ARRAY_SIZE(params->pen.subreport_list);
/* Try to match a subreport */
for (subreport = params->pen.subreport_list;
subreport < subreport_list_end; subreport++) {
if (subreport->value != 0 &&
subreport->value == data[1]) {
break;
}
}
/* If a subreport matched */
if (subreport < subreport_list_end) {
/* Change to subreport ID, and restart */
report_id = data[0] = subreport->id;
continue;
} else {
return uclogic_raw_event_pen(drvdata, data, size);
}
}
/* Tweak frame control reports, if necessary */
for (i = 0; i < ARRAY_SIZE(params->frame_list); i++) {
if (report_id == params->frame_list[i].id) {
return uclogic_raw_event_frame(
drvdata, ¶ms->frame_list[i],
data, size);
}
}
break;
}
return 0;
}
static void uclogic_remove(struct hid_device *hdev)
{
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
del_timer_sync(&drvdata->inrange_timer);
hid_hw_stop(hdev);
kfree(drvdata->desc_ptr);
uclogic_params_cleanup(&drvdata->params);
}
static const struct hid_device_id uclogic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TRUST,
USB_DEVICE_ID_TRUST_PANORA_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_HUION_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_YIYNOVA_TABLET) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_81) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_45) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_47) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER,
USB_DEVICE_ID_UGTIZER_TABLET_GP0610) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER,
USB_DEVICE_ID_UGTIZER_TABLET_GT5040) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_PARBLO_A610_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_G5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_EX07S) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_RAINBOW_CV720) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_G540) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_G640) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01_V2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW),
.driver_data = UCLOGIC_MOUSE_FRAME_QUIRK | UCLOGIC_BATTERY_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_S) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW),
.driver_data = UCLOGIC_MOUSE_FRAME_QUIRK | UCLOGIC_BATTERY_QUIRK },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_STAR06) },
{ }
};
MODULE_DEVICE_TABLE(hid, uclogic_devices);
static struct hid_driver uclogic_driver = {
.name = "uclogic",
.id_table = uclogic_devices,
.probe = uclogic_probe,
.remove = uclogic_remove,
.report_fixup = uclogic_report_fixup,
.raw_event = uclogic_raw_event,
.input_mapping = uclogic_input_mapping,
.input_configured = uclogic_input_configured,
#ifdef CONFIG_PM
.resume = uclogic_resume,
.reset_resume = uclogic_resume,
#endif
};
module_hid_driver(uclogic_driver);
MODULE_AUTHOR("Martin Rusko");
MODULE_AUTHOR("Nikolai Kondrashov");
MODULE_LICENSE("GPL");
#ifdef CONFIG_HID_KUNIT_TEST
#include "hid-uclogic-core-test.c"
#endif
| linux-master | drivers/hid/hid-uclogic-core.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for Nintendo Switch Joy-Cons and Pro Controllers
*
* Copyright (c) 2019-2021 Daniel J. Ogorchock <[email protected]>
*
* The following resources/projects were referenced for this driver:
* https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
* https://gitlab.com/pjranki/joycon-linux-kernel (Peter Rankin)
* https://github.com/FrotBot/SwitchProConLinuxUSB
* https://github.com/MTCKC/ProconXInput
* https://github.com/Davidobot/BetterJoyForCemu
* hid-wiimote kernel hid driver
* hid-logitech-hidpp driver
* hid-sony driver
*
* This driver supports the Nintendo Switch Joy-Cons and Pro Controllers. The
* Pro Controllers can either be used over USB or Bluetooth.
*
* The driver will retrieve the factory calibration info from the controllers,
* so little to no user calibration should be required.
*
*/
#include "hid-ids.h"
#include <asm/unaligned.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/jiffies.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
/*
* Reference the url below for the following HID report defines:
* https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
*/
/* Output Reports */
#define JC_OUTPUT_RUMBLE_AND_SUBCMD 0x01
#define JC_OUTPUT_FW_UPDATE_PKT 0x03
#define JC_OUTPUT_RUMBLE_ONLY 0x10
#define JC_OUTPUT_MCU_DATA 0x11
#define JC_OUTPUT_USB_CMD 0x80
/* Subcommand IDs */
#define JC_SUBCMD_STATE 0x00
#define JC_SUBCMD_MANUAL_BT_PAIRING 0x01
#define JC_SUBCMD_REQ_DEV_INFO 0x02
#define JC_SUBCMD_SET_REPORT_MODE 0x03
#define JC_SUBCMD_TRIGGERS_ELAPSED 0x04
#define JC_SUBCMD_GET_PAGE_LIST_STATE 0x05
#define JC_SUBCMD_SET_HCI_STATE 0x06
#define JC_SUBCMD_RESET_PAIRING_INFO 0x07
#define JC_SUBCMD_LOW_POWER_MODE 0x08
#define JC_SUBCMD_SPI_FLASH_READ 0x10
#define JC_SUBCMD_SPI_FLASH_WRITE 0x11
#define JC_SUBCMD_RESET_MCU 0x20
#define JC_SUBCMD_SET_MCU_CONFIG 0x21
#define JC_SUBCMD_SET_MCU_STATE 0x22
#define JC_SUBCMD_SET_PLAYER_LIGHTS 0x30
#define JC_SUBCMD_GET_PLAYER_LIGHTS 0x31
#define JC_SUBCMD_SET_HOME_LIGHT 0x38
#define JC_SUBCMD_ENABLE_IMU 0x40
#define JC_SUBCMD_SET_IMU_SENSITIVITY 0x41
#define JC_SUBCMD_WRITE_IMU_REG 0x42
#define JC_SUBCMD_READ_IMU_REG 0x43
#define JC_SUBCMD_ENABLE_VIBRATION 0x48
#define JC_SUBCMD_GET_REGULATED_VOLTAGE 0x50
/* Input Reports */
#define JC_INPUT_BUTTON_EVENT 0x3F
#define JC_INPUT_SUBCMD_REPLY 0x21
#define JC_INPUT_IMU_DATA 0x30
#define JC_INPUT_MCU_DATA 0x31
#define JC_INPUT_USB_RESPONSE 0x81
/* Feature Reports */
#define JC_FEATURE_LAST_SUBCMD 0x02
#define JC_FEATURE_OTA_FW_UPGRADE 0x70
#define JC_FEATURE_SETUP_MEM_READ 0x71
#define JC_FEATURE_MEM_READ 0x72
#define JC_FEATURE_ERASE_MEM_SECTOR 0x73
#define JC_FEATURE_MEM_WRITE 0x74
#define JC_FEATURE_LAUNCH 0x75
/* USB Commands */
#define JC_USB_CMD_CONN_STATUS 0x01
#define JC_USB_CMD_HANDSHAKE 0x02
#define JC_USB_CMD_BAUDRATE_3M 0x03
#define JC_USB_CMD_NO_TIMEOUT 0x04
#define JC_USB_CMD_EN_TIMEOUT 0x05
#define JC_USB_RESET 0x06
#define JC_USB_PRE_HANDSHAKE 0x91
#define JC_USB_SEND_UART 0x92
/* Magic value denoting presence of user calibration */
#define JC_CAL_USR_MAGIC_0 0xB2
#define JC_CAL_USR_MAGIC_1 0xA1
#define JC_CAL_USR_MAGIC_SIZE 2
/* SPI storage addresses of user calibration data */
#define JC_CAL_USR_LEFT_MAGIC_ADDR 0x8010
#define JC_CAL_USR_LEFT_DATA_ADDR 0x8012
#define JC_CAL_USR_LEFT_DATA_END 0x801A
#define JC_CAL_USR_RIGHT_MAGIC_ADDR 0x801B
#define JC_CAL_USR_RIGHT_DATA_ADDR 0x801D
#define JC_CAL_STICK_DATA_SIZE \
(JC_CAL_USR_LEFT_DATA_END - JC_CAL_USR_LEFT_DATA_ADDR + 1)
/* SPI storage addresses of factory calibration data */
#define JC_CAL_FCT_DATA_LEFT_ADDR 0x603d
#define JC_CAL_FCT_DATA_RIGHT_ADDR 0x6046
/* SPI storage addresses of IMU factory calibration data */
#define JC_IMU_CAL_FCT_DATA_ADDR 0x6020
#define JC_IMU_CAL_FCT_DATA_END 0x6037
#define JC_IMU_CAL_DATA_SIZE \
(JC_IMU_CAL_FCT_DATA_END - JC_IMU_CAL_FCT_DATA_ADDR + 1)
/* SPI storage addresses of IMU user calibration data */
#define JC_IMU_CAL_USR_MAGIC_ADDR 0x8026
#define JC_IMU_CAL_USR_DATA_ADDR 0x8028
/* The raw analog joystick values will be mapped in terms of this magnitude */
#define JC_MAX_STICK_MAG 32767
#define JC_STICK_FUZZ 250
#define JC_STICK_FLAT 500
/* Hat values for pro controller's d-pad */
#define JC_MAX_DPAD_MAG 1
#define JC_DPAD_FUZZ 0
#define JC_DPAD_FLAT 0
/* Under most circumstances IMU reports are pushed every 15ms; use as default */
#define JC_IMU_DFLT_AVG_DELTA_MS 15
/* How many samples to sum before calculating average IMU report delta */
#define JC_IMU_SAMPLES_PER_DELTA_AVG 300
/* Controls how many dropped IMU packets at once trigger a warning message */
#define JC_IMU_DROPPED_PKT_WARNING 3
/*
* The controller's accelerometer has a sensor resolution of 16bits and is
* configured with a range of +-8000 milliGs. Therefore, the resolution can be
* calculated thus: (2^16-1)/(8000 * 2) = 4.096 digits per milliG
* Resolution per G (rather than per millliG): 4.096 * 1000 = 4096 digits per G
* Alternatively: 1/4096 = .0002441 Gs per digit
*/
#define JC_IMU_MAX_ACCEL_MAG 32767
#define JC_IMU_ACCEL_RES_PER_G 4096
#define JC_IMU_ACCEL_FUZZ 10
#define JC_IMU_ACCEL_FLAT 0
/*
* The controller's gyroscope has a sensor resolution of 16bits and is
* configured with a range of +-2000 degrees/second.
* Digits per dps: (2^16 -1)/(2000*2) = 16.38375
* dps per digit: 16.38375E-1 = .0610
*
* STMicro recommends in the datasheet to add 15% to the dps/digit. This allows
* the full sensitivity range to be saturated without clipping. This yields more
* accurate results, so it's the technique this driver uses.
* dps per digit (corrected): .0610 * 1.15 = .0702
* digits per dps (corrected): .0702E-1 = 14.247
*
* Now, 14.247 truncating to 14 loses a lot of precision, so we rescale the
* min/max range by 1000.
*/
#define JC_IMU_PREC_RANGE_SCALE 1000
/* Note: change mag and res_per_dps if prec_range_scale is ever altered */
#define JC_IMU_MAX_GYRO_MAG 32767000 /* (2^16-1)*1000 */
#define JC_IMU_GYRO_RES_PER_DPS 14247 /* (14.247*1000) */
#define JC_IMU_GYRO_FUZZ 10
#define JC_IMU_GYRO_FLAT 0
/* frequency/amplitude tables for rumble */
struct joycon_rumble_freq_data {
u16 high;
u8 low;
u16 freq; /* Hz*/
};
struct joycon_rumble_amp_data {
u8 high;
u16 low;
u16 amp;
};
#if IS_ENABLED(CONFIG_NINTENDO_FF)
/*
* These tables are from
* https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md
*/
static const struct joycon_rumble_freq_data joycon_rumble_frequencies[] = {
/* high, low, freq */
{ 0x0000, 0x01, 41 }, { 0x0000, 0x02, 42 }, { 0x0000, 0x03, 43 },
{ 0x0000, 0x04, 44 }, { 0x0000, 0x05, 45 }, { 0x0000, 0x06, 46 },
{ 0x0000, 0x07, 47 }, { 0x0000, 0x08, 48 }, { 0x0000, 0x09, 49 },
{ 0x0000, 0x0A, 50 }, { 0x0000, 0x0B, 51 }, { 0x0000, 0x0C, 52 },
{ 0x0000, 0x0D, 53 }, { 0x0000, 0x0E, 54 }, { 0x0000, 0x0F, 55 },
{ 0x0000, 0x10, 57 }, { 0x0000, 0x11, 58 }, { 0x0000, 0x12, 59 },
{ 0x0000, 0x13, 60 }, { 0x0000, 0x14, 62 }, { 0x0000, 0x15, 63 },
{ 0x0000, 0x16, 64 }, { 0x0000, 0x17, 66 }, { 0x0000, 0x18, 67 },
{ 0x0000, 0x19, 69 }, { 0x0000, 0x1A, 70 }, { 0x0000, 0x1B, 72 },
{ 0x0000, 0x1C, 73 }, { 0x0000, 0x1D, 75 }, { 0x0000, 0x1e, 77 },
{ 0x0000, 0x1f, 78 }, { 0x0000, 0x20, 80 }, { 0x0400, 0x21, 82 },
{ 0x0800, 0x22, 84 }, { 0x0c00, 0x23, 85 }, { 0x1000, 0x24, 87 },
{ 0x1400, 0x25, 89 }, { 0x1800, 0x26, 91 }, { 0x1c00, 0x27, 93 },
{ 0x2000, 0x28, 95 }, { 0x2400, 0x29, 97 }, { 0x2800, 0x2a, 99 },
{ 0x2c00, 0x2b, 102 }, { 0x3000, 0x2c, 104 }, { 0x3400, 0x2d, 106 },
{ 0x3800, 0x2e, 108 }, { 0x3c00, 0x2f, 111 }, { 0x4000, 0x30, 113 },
{ 0x4400, 0x31, 116 }, { 0x4800, 0x32, 118 }, { 0x4c00, 0x33, 121 },
{ 0x5000, 0x34, 123 }, { 0x5400, 0x35, 126 }, { 0x5800, 0x36, 129 },
{ 0x5c00, 0x37, 132 }, { 0x6000, 0x38, 135 }, { 0x6400, 0x39, 137 },
{ 0x6800, 0x3a, 141 }, { 0x6c00, 0x3b, 144 }, { 0x7000, 0x3c, 147 },
{ 0x7400, 0x3d, 150 }, { 0x7800, 0x3e, 153 }, { 0x7c00, 0x3f, 157 },
{ 0x8000, 0x40, 160 }, { 0x8400, 0x41, 164 }, { 0x8800, 0x42, 167 },
{ 0x8c00, 0x43, 171 }, { 0x9000, 0x44, 174 }, { 0x9400, 0x45, 178 },
{ 0x9800, 0x46, 182 }, { 0x9c00, 0x47, 186 }, { 0xa000, 0x48, 190 },
{ 0xa400, 0x49, 194 }, { 0xa800, 0x4a, 199 }, { 0xac00, 0x4b, 203 },
{ 0xb000, 0x4c, 207 }, { 0xb400, 0x4d, 212 }, { 0xb800, 0x4e, 217 },
{ 0xbc00, 0x4f, 221 }, { 0xc000, 0x50, 226 }, { 0xc400, 0x51, 231 },
{ 0xc800, 0x52, 236 }, { 0xcc00, 0x53, 241 }, { 0xd000, 0x54, 247 },
{ 0xd400, 0x55, 252 }, { 0xd800, 0x56, 258 }, { 0xdc00, 0x57, 263 },
{ 0xe000, 0x58, 269 }, { 0xe400, 0x59, 275 }, { 0xe800, 0x5a, 281 },
{ 0xec00, 0x5b, 287 }, { 0xf000, 0x5c, 293 }, { 0xf400, 0x5d, 300 },
{ 0xf800, 0x5e, 306 }, { 0xfc00, 0x5f, 313 }, { 0x0001, 0x60, 320 },
{ 0x0401, 0x61, 327 }, { 0x0801, 0x62, 334 }, { 0x0c01, 0x63, 341 },
{ 0x1001, 0x64, 349 }, { 0x1401, 0x65, 357 }, { 0x1801, 0x66, 364 },
{ 0x1c01, 0x67, 372 }, { 0x2001, 0x68, 381 }, { 0x2401, 0x69, 389 },
{ 0x2801, 0x6a, 397 }, { 0x2c01, 0x6b, 406 }, { 0x3001, 0x6c, 415 },
{ 0x3401, 0x6d, 424 }, { 0x3801, 0x6e, 433 }, { 0x3c01, 0x6f, 443 },
{ 0x4001, 0x70, 453 }, { 0x4401, 0x71, 462 }, { 0x4801, 0x72, 473 },
{ 0x4c01, 0x73, 483 }, { 0x5001, 0x74, 494 }, { 0x5401, 0x75, 504 },
{ 0x5801, 0x76, 515 }, { 0x5c01, 0x77, 527 }, { 0x6001, 0x78, 538 },
{ 0x6401, 0x79, 550 }, { 0x6801, 0x7a, 562 }, { 0x6c01, 0x7b, 574 },
{ 0x7001, 0x7c, 587 }, { 0x7401, 0x7d, 600 }, { 0x7801, 0x7e, 613 },
{ 0x7c01, 0x7f, 626 }, { 0x8001, 0x00, 640 }, { 0x8401, 0x00, 654 },
{ 0x8801, 0x00, 668 }, { 0x8c01, 0x00, 683 }, { 0x9001, 0x00, 698 },
{ 0x9401, 0x00, 713 }, { 0x9801, 0x00, 729 }, { 0x9c01, 0x00, 745 },
{ 0xa001, 0x00, 761 }, { 0xa401, 0x00, 778 }, { 0xa801, 0x00, 795 },
{ 0xac01, 0x00, 812 }, { 0xb001, 0x00, 830 }, { 0xb401, 0x00, 848 },
{ 0xb801, 0x00, 867 }, { 0xbc01, 0x00, 886 }, { 0xc001, 0x00, 905 },
{ 0xc401, 0x00, 925 }, { 0xc801, 0x00, 945 }, { 0xcc01, 0x00, 966 },
{ 0xd001, 0x00, 987 }, { 0xd401, 0x00, 1009 }, { 0xd801, 0x00, 1031 },
{ 0xdc01, 0x00, 1053 }, { 0xe001, 0x00, 1076 }, { 0xe401, 0x00, 1100 },
{ 0xe801, 0x00, 1124 }, { 0xec01, 0x00, 1149 }, { 0xf001, 0x00, 1174 },
{ 0xf401, 0x00, 1199 }, { 0xf801, 0x00, 1226 }, { 0xfc01, 0x00, 1253 }
};
#define joycon_max_rumble_amp (1003)
static const struct joycon_rumble_amp_data joycon_rumble_amplitudes[] = {
/* high, low, amp */
{ 0x00, 0x0040, 0 },
{ 0x02, 0x8040, 10 }, { 0x04, 0x0041, 12 }, { 0x06, 0x8041, 14 },
{ 0x08, 0x0042, 17 }, { 0x0a, 0x8042, 20 }, { 0x0c, 0x0043, 24 },
{ 0x0e, 0x8043, 28 }, { 0x10, 0x0044, 33 }, { 0x12, 0x8044, 40 },
{ 0x14, 0x0045, 47 }, { 0x16, 0x8045, 56 }, { 0x18, 0x0046, 67 },
{ 0x1a, 0x8046, 80 }, { 0x1c, 0x0047, 95 }, { 0x1e, 0x8047, 112 },
{ 0x20, 0x0048, 117 }, { 0x22, 0x8048, 123 }, { 0x24, 0x0049, 128 },
{ 0x26, 0x8049, 134 }, { 0x28, 0x004a, 140 }, { 0x2a, 0x804a, 146 },
{ 0x2c, 0x004b, 152 }, { 0x2e, 0x804b, 159 }, { 0x30, 0x004c, 166 },
{ 0x32, 0x804c, 173 }, { 0x34, 0x004d, 181 }, { 0x36, 0x804d, 189 },
{ 0x38, 0x004e, 198 }, { 0x3a, 0x804e, 206 }, { 0x3c, 0x004f, 215 },
{ 0x3e, 0x804f, 225 }, { 0x40, 0x0050, 230 }, { 0x42, 0x8050, 235 },
{ 0x44, 0x0051, 240 }, { 0x46, 0x8051, 245 }, { 0x48, 0x0052, 251 },
{ 0x4a, 0x8052, 256 }, { 0x4c, 0x0053, 262 }, { 0x4e, 0x8053, 268 },
{ 0x50, 0x0054, 273 }, { 0x52, 0x8054, 279 }, { 0x54, 0x0055, 286 },
{ 0x56, 0x8055, 292 }, { 0x58, 0x0056, 298 }, { 0x5a, 0x8056, 305 },
{ 0x5c, 0x0057, 311 }, { 0x5e, 0x8057, 318 }, { 0x60, 0x0058, 325 },
{ 0x62, 0x8058, 332 }, { 0x64, 0x0059, 340 }, { 0x66, 0x8059, 347 },
{ 0x68, 0x005a, 355 }, { 0x6a, 0x805a, 362 }, { 0x6c, 0x005b, 370 },
{ 0x6e, 0x805b, 378 }, { 0x70, 0x005c, 387 }, { 0x72, 0x805c, 395 },
{ 0x74, 0x005d, 404 }, { 0x76, 0x805d, 413 }, { 0x78, 0x005e, 422 },
{ 0x7a, 0x805e, 431 }, { 0x7c, 0x005f, 440 }, { 0x7e, 0x805f, 450 },
{ 0x80, 0x0060, 460 }, { 0x82, 0x8060, 470 }, { 0x84, 0x0061, 480 },
{ 0x86, 0x8061, 491 }, { 0x88, 0x0062, 501 }, { 0x8a, 0x8062, 512 },
{ 0x8c, 0x0063, 524 }, { 0x8e, 0x8063, 535 }, { 0x90, 0x0064, 547 },
{ 0x92, 0x8064, 559 }, { 0x94, 0x0065, 571 }, { 0x96, 0x8065, 584 },
{ 0x98, 0x0066, 596 }, { 0x9a, 0x8066, 609 }, { 0x9c, 0x0067, 623 },
{ 0x9e, 0x8067, 636 }, { 0xa0, 0x0068, 650 }, { 0xa2, 0x8068, 665 },
{ 0xa4, 0x0069, 679 }, { 0xa6, 0x8069, 694 }, { 0xa8, 0x006a, 709 },
{ 0xaa, 0x806a, 725 }, { 0xac, 0x006b, 741 }, { 0xae, 0x806b, 757 },
{ 0xb0, 0x006c, 773 }, { 0xb2, 0x806c, 790 }, { 0xb4, 0x006d, 808 },
{ 0xb6, 0x806d, 825 }, { 0xb8, 0x006e, 843 }, { 0xba, 0x806e, 862 },
{ 0xbc, 0x006f, 881 }, { 0xbe, 0x806f, 900 }, { 0xc0, 0x0070, 920 },
{ 0xc2, 0x8070, 940 }, { 0xc4, 0x0071, 960 }, { 0xc6, 0x8071, 981 },
{ 0xc8, 0x0072, joycon_max_rumble_amp }
};
static const u16 JC_RUMBLE_DFLT_LOW_FREQ = 160;
static const u16 JC_RUMBLE_DFLT_HIGH_FREQ = 320;
static const unsigned short JC_RUMBLE_ZERO_AMP_PKT_CNT = 5;
#endif /* IS_ENABLED(CONFIG_NINTENDO_FF) */
static const u16 JC_RUMBLE_PERIOD_MS = 50;
/* States for controller state machine */
enum joycon_ctlr_state {
JOYCON_CTLR_STATE_INIT,
JOYCON_CTLR_STATE_READ,
JOYCON_CTLR_STATE_REMOVED,
};
/* Controller type received as part of device info */
enum joycon_ctlr_type {
JOYCON_CTLR_TYPE_JCL = 0x01,
JOYCON_CTLR_TYPE_JCR = 0x02,
JOYCON_CTLR_TYPE_PRO = 0x03,
};
struct joycon_stick_cal {
s32 max;
s32 min;
s32 center;
};
struct joycon_imu_cal {
s16 offset[3];
s16 scale[3];
};
/*
* All the controller's button values are stored in a u32.
* They can be accessed with bitwise ANDs.
*/
static const u32 JC_BTN_Y = BIT(0);
static const u32 JC_BTN_X = BIT(1);
static const u32 JC_BTN_B = BIT(2);
static const u32 JC_BTN_A = BIT(3);
static const u32 JC_BTN_SR_R = BIT(4);
static const u32 JC_BTN_SL_R = BIT(5);
static const u32 JC_BTN_R = BIT(6);
static const u32 JC_BTN_ZR = BIT(7);
static const u32 JC_BTN_MINUS = BIT(8);
static const u32 JC_BTN_PLUS = BIT(9);
static const u32 JC_BTN_RSTICK = BIT(10);
static const u32 JC_BTN_LSTICK = BIT(11);
static const u32 JC_BTN_HOME = BIT(12);
static const u32 JC_BTN_CAP = BIT(13); /* capture button */
static const u32 JC_BTN_DOWN = BIT(16);
static const u32 JC_BTN_UP = BIT(17);
static const u32 JC_BTN_RIGHT = BIT(18);
static const u32 JC_BTN_LEFT = BIT(19);
static const u32 JC_BTN_SR_L = BIT(20);
static const u32 JC_BTN_SL_L = BIT(21);
static const u32 JC_BTN_L = BIT(22);
static const u32 JC_BTN_ZL = BIT(23);
enum joycon_msg_type {
JOYCON_MSG_TYPE_NONE,
JOYCON_MSG_TYPE_USB,
JOYCON_MSG_TYPE_SUBCMD,
};
struct joycon_rumble_output {
u8 output_id;
u8 packet_num;
u8 rumble_data[8];
} __packed;
struct joycon_subcmd_request {
u8 output_id; /* must be 0x01 for subcommand, 0x10 for rumble only */
u8 packet_num; /* incremented every send */
u8 rumble_data[8];
u8 subcmd_id;
u8 data[]; /* length depends on the subcommand */
} __packed;
struct joycon_subcmd_reply {
u8 ack; /* MSB 1 for ACK, 0 for NACK */
u8 id; /* id of requested subcmd */
u8 data[]; /* will be at most 35 bytes */
} __packed;
struct joycon_imu_data {
s16 accel_x;
s16 accel_y;
s16 accel_z;
s16 gyro_x;
s16 gyro_y;
s16 gyro_z;
} __packed;
struct joycon_input_report {
u8 id;
u8 timer;
u8 bat_con; /* battery and connection info */
u8 button_status[3];
u8 left_stick[3];
u8 right_stick[3];
u8 vibrator_report;
union {
struct joycon_subcmd_reply subcmd_reply;
/* IMU input reports contain 3 samples */
u8 imu_raw_bytes[sizeof(struct joycon_imu_data) * 3];
};
} __packed;
#define JC_MAX_RESP_SIZE (sizeof(struct joycon_input_report) + 35)
#define JC_RUMBLE_DATA_SIZE 8
#define JC_RUMBLE_QUEUE_SIZE 8
static const char * const joycon_player_led_names[] = {
LED_FUNCTION_PLAYER1,
LED_FUNCTION_PLAYER2,
LED_FUNCTION_PLAYER3,
LED_FUNCTION_PLAYER4,
};
#define JC_NUM_LEDS ARRAY_SIZE(joycon_player_led_names)
/* Each physical controller is associated with a joycon_ctlr struct */
struct joycon_ctlr {
struct hid_device *hdev;
struct input_dev *input;
struct led_classdev leds[JC_NUM_LEDS]; /* player leds */
struct led_classdev home_led;
enum joycon_ctlr_state ctlr_state;
spinlock_t lock;
u8 mac_addr[6];
char *mac_addr_str;
enum joycon_ctlr_type ctlr_type;
/* The following members are used for synchronous sends/receives */
enum joycon_msg_type msg_type;
u8 subcmd_num;
struct mutex output_mutex;
u8 input_buf[JC_MAX_RESP_SIZE];
wait_queue_head_t wait;
bool received_resp;
u8 usb_ack_match;
u8 subcmd_ack_match;
bool received_input_report;
unsigned int last_input_report_msecs;
unsigned int last_subcmd_sent_msecs;
unsigned int consecutive_valid_report_deltas;
/* factory calibration data */
struct joycon_stick_cal left_stick_cal_x;
struct joycon_stick_cal left_stick_cal_y;
struct joycon_stick_cal right_stick_cal_x;
struct joycon_stick_cal right_stick_cal_y;
struct joycon_imu_cal accel_cal;
struct joycon_imu_cal gyro_cal;
/* prevents needlessly recalculating these divisors every sample */
s32 imu_cal_accel_divisor[3];
s32 imu_cal_gyro_divisor[3];
/* power supply data */
struct power_supply *battery;
struct power_supply_desc battery_desc;
u8 battery_capacity;
bool battery_charging;
bool host_powered;
/* rumble */
u8 rumble_data[JC_RUMBLE_QUEUE_SIZE][JC_RUMBLE_DATA_SIZE];
int rumble_queue_head;
int rumble_queue_tail;
struct workqueue_struct *rumble_queue;
struct work_struct rumble_worker;
unsigned int rumble_msecs;
u16 rumble_ll_freq;
u16 rumble_lh_freq;
u16 rumble_rl_freq;
u16 rumble_rh_freq;
unsigned short rumble_zero_countdown;
/* imu */
struct input_dev *imu_input;
bool imu_first_packet_received; /* helps in initiating timestamp */
unsigned int imu_timestamp_us; /* timestamp we report to userspace */
unsigned int imu_last_pkt_ms; /* used to calc imu report delta */
/* the following are used to track the average imu report time delta */
unsigned int imu_delta_samples_count;
unsigned int imu_delta_samples_sum;
unsigned int imu_avg_delta_ms;
};
/* Helper macros for checking controller type */
#define jc_type_is_joycon(ctlr) \
(ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL || \
ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR || \
ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP)
#define jc_type_is_procon(ctlr) \
(ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_PROCON)
#define jc_type_is_chrggrip(ctlr) \
(ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP)
/* Does this controller have inputs associated with left joycon? */
#define jc_type_has_left(ctlr) \
(ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCL || \
ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO)
/* Does this controller have inputs associated with right joycon? */
#define jc_type_has_right(ctlr) \
(ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCR || \
ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO)
static int __joycon_hid_send(struct hid_device *hdev, u8 *data, size_t len)
{
u8 *buf;
int ret;
buf = kmemdup(data, len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_output_report(hdev, buf, len);
kfree(buf);
if (ret < 0)
hid_dbg(hdev, "Failed to send output report ret=%d\n", ret);
return ret;
}
static void joycon_wait_for_input_report(struct joycon_ctlr *ctlr)
{
int ret;
/*
* If we are in the proper reporting mode, wait for an input
* report prior to sending the subcommand. This improves
* reliability considerably.
*/
if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) {
unsigned long flags;
spin_lock_irqsave(&ctlr->lock, flags);
ctlr->received_input_report = false;
spin_unlock_irqrestore(&ctlr->lock, flags);
ret = wait_event_timeout(ctlr->wait,
ctlr->received_input_report,
HZ / 4);
/* We will still proceed, even with a timeout here */
if (!ret)
hid_warn(ctlr->hdev,
"timeout waiting for input report\n");
}
}
/*
* Sending subcommands and/or rumble data at too high a rate can cause bluetooth
* controller disconnections.
*/
#define JC_INPUT_REPORT_MIN_DELTA 8
#define JC_INPUT_REPORT_MAX_DELTA 17
#define JC_SUBCMD_TX_OFFSET_MS 4
#define JC_SUBCMD_VALID_DELTA_REQ 3
#define JC_SUBCMD_RATE_MAX_ATTEMPTS 500
#define JC_SUBCMD_RATE_LIMITER_USB_MS 20
#define JC_SUBCMD_RATE_LIMITER_BT_MS 60
#define JC_SUBCMD_RATE_LIMITER_MS(ctlr) ((ctlr)->hdev->bus == BUS_USB ? JC_SUBCMD_RATE_LIMITER_USB_MS : JC_SUBCMD_RATE_LIMITER_BT_MS)
static void joycon_enforce_subcmd_rate(struct joycon_ctlr *ctlr)
{
unsigned int current_ms;
unsigned long subcmd_delta;
int consecutive_valid_deltas = 0;
int attempts = 0;
unsigned long flags;
if (unlikely(ctlr->ctlr_state != JOYCON_CTLR_STATE_READ))
return;
do {
joycon_wait_for_input_report(ctlr);
current_ms = jiffies_to_msecs(jiffies);
subcmd_delta = current_ms - ctlr->last_subcmd_sent_msecs;
spin_lock_irqsave(&ctlr->lock, flags);
consecutive_valid_deltas = ctlr->consecutive_valid_report_deltas;
spin_unlock_irqrestore(&ctlr->lock, flags);
attempts++;
} while ((consecutive_valid_deltas < JC_SUBCMD_VALID_DELTA_REQ ||
subcmd_delta < JC_SUBCMD_RATE_LIMITER_MS(ctlr)) &&
ctlr->ctlr_state == JOYCON_CTLR_STATE_READ &&
attempts < JC_SUBCMD_RATE_MAX_ATTEMPTS);
if (attempts >= JC_SUBCMD_RATE_MAX_ATTEMPTS) {
hid_warn(ctlr->hdev, "%s: exceeded max attempts", __func__);
return;
}
ctlr->last_subcmd_sent_msecs = current_ms;
/*
* Wait a short time after receiving an input report before
* transmitting. This should reduce odds of a TX coinciding with an RX.
* Minimizing concurrent BT traffic with the controller seems to lower
* the rate of disconnections.
*/
msleep(JC_SUBCMD_TX_OFFSET_MS);
}
static int joycon_hid_send_sync(struct joycon_ctlr *ctlr, u8 *data, size_t len,
u32 timeout)
{
int ret;
int tries = 2;
/*
* The controller occasionally seems to drop subcommands. In testing,
* doing one retry after a timeout appears to always work.
*/
while (tries--) {
joycon_enforce_subcmd_rate(ctlr);
ret = __joycon_hid_send(ctlr->hdev, data, len);
if (ret < 0) {
memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
return ret;
}
ret = wait_event_timeout(ctlr->wait, ctlr->received_resp,
timeout);
if (!ret) {
hid_dbg(ctlr->hdev,
"synchronous send/receive timed out\n");
if (tries) {
hid_dbg(ctlr->hdev,
"retrying sync send after timeout\n");
}
memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
ret = -ETIMEDOUT;
} else {
ret = 0;
break;
}
}
ctlr->received_resp = false;
return ret;
}
static int joycon_send_usb(struct joycon_ctlr *ctlr, u8 cmd, u32 timeout)
{
int ret;
u8 buf[2] = {JC_OUTPUT_USB_CMD};
buf[1] = cmd;
ctlr->usb_ack_match = cmd;
ctlr->msg_type = JOYCON_MSG_TYPE_USB;
ret = joycon_hid_send_sync(ctlr, buf, sizeof(buf), timeout);
if (ret)
hid_dbg(ctlr->hdev, "send usb command failed; ret=%d\n", ret);
return ret;
}
static int joycon_send_subcmd(struct joycon_ctlr *ctlr,
struct joycon_subcmd_request *subcmd,
size_t data_len, u32 timeout)
{
int ret;
unsigned long flags;
spin_lock_irqsave(&ctlr->lock, flags);
/*
* If the controller has been removed, just return ENODEV so the LED
* subsystem doesn't print invalid errors on removal.
*/
if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) {
spin_unlock_irqrestore(&ctlr->lock, flags);
return -ENODEV;
}
memcpy(subcmd->rumble_data, ctlr->rumble_data[ctlr->rumble_queue_tail],
JC_RUMBLE_DATA_SIZE);
spin_unlock_irqrestore(&ctlr->lock, flags);
subcmd->output_id = JC_OUTPUT_RUMBLE_AND_SUBCMD;
subcmd->packet_num = ctlr->subcmd_num;
if (++ctlr->subcmd_num > 0xF)
ctlr->subcmd_num = 0;
ctlr->subcmd_ack_match = subcmd->subcmd_id;
ctlr->msg_type = JOYCON_MSG_TYPE_SUBCMD;
ret = joycon_hid_send_sync(ctlr, (u8 *)subcmd,
sizeof(*subcmd) + data_len, timeout);
if (ret < 0)
hid_dbg(ctlr->hdev, "send subcommand failed; ret=%d\n", ret);
else
ret = 0;
return ret;
}
/* Supply nibbles for flash and on. Ones correspond to active */
static int joycon_set_player_leds(struct joycon_ctlr *ctlr, u8 flash, u8 on)
{
struct joycon_subcmd_request *req;
u8 buffer[sizeof(*req) + 1] = { 0 };
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_SET_PLAYER_LIGHTS;
req->data[0] = (flash << 4) | on;
hid_dbg(ctlr->hdev, "setting player leds\n");
return joycon_send_subcmd(ctlr, req, 1, HZ/4);
}
static int joycon_request_spi_flash_read(struct joycon_ctlr *ctlr,
u32 start_addr, u8 size, u8 **reply)
{
struct joycon_subcmd_request *req;
struct joycon_input_report *report;
u8 buffer[sizeof(*req) + 5] = { 0 };
u8 *data;
int ret;
if (!reply)
return -EINVAL;
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_SPI_FLASH_READ;
data = req->data;
put_unaligned_le32(start_addr, data);
data[4] = size;
hid_dbg(ctlr->hdev, "requesting SPI flash data\n");
ret = joycon_send_subcmd(ctlr, req, 5, HZ);
if (ret) {
hid_err(ctlr->hdev, "failed reading SPI flash; ret=%d\n", ret);
} else {
report = (struct joycon_input_report *)ctlr->input_buf;
/* The read data starts at the 6th byte */
*reply = &report->subcmd_reply.data[5];
}
return ret;
}
/*
* User calibration's presence is denoted with a magic byte preceding it.
* returns 0 if magic val is present, 1 if not present, < 0 on error
*/
static int joycon_check_for_cal_magic(struct joycon_ctlr *ctlr, u32 flash_addr)
{
int ret;
u8 *reply;
ret = joycon_request_spi_flash_read(ctlr, flash_addr,
JC_CAL_USR_MAGIC_SIZE, &reply);
if (ret)
return ret;
return reply[0] != JC_CAL_USR_MAGIC_0 || reply[1] != JC_CAL_USR_MAGIC_1;
}
static int joycon_read_stick_calibration(struct joycon_ctlr *ctlr, u16 cal_addr,
struct joycon_stick_cal *cal_x,
struct joycon_stick_cal *cal_y,
bool left_stick)
{
s32 x_max_above;
s32 x_min_below;
s32 y_max_above;
s32 y_min_below;
u8 *raw_cal;
int ret;
ret = joycon_request_spi_flash_read(ctlr, cal_addr,
JC_CAL_STICK_DATA_SIZE, &raw_cal);
if (ret)
return ret;
/* stick calibration parsing: note the order differs based on stick */
if (left_stick) {
x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0,
12);
y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4,
12);
cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0,
12);
cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4,
12);
x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0,
12);
y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4,
12);
} else {
cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0,
12);
cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4,
12);
x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0,
12);
y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4,
12);
x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0,
12);
y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4,
12);
}
cal_x->max = cal_x->center + x_max_above;
cal_x->min = cal_x->center - x_min_below;
cal_y->max = cal_y->center + y_max_above;
cal_y->min = cal_y->center - y_min_below;
/* check if calibration values are plausible */
if (cal_x->min >= cal_x->center || cal_x->center >= cal_x->max ||
cal_y->min >= cal_y->center || cal_y->center >= cal_y->max)
ret = -EINVAL;
return ret;
}
static const u16 DFLT_STICK_CAL_CEN = 2000;
static const u16 DFLT_STICK_CAL_MAX = 3500;
static const u16 DFLT_STICK_CAL_MIN = 500;
static void joycon_use_default_calibration(struct hid_device *hdev,
struct joycon_stick_cal *cal_x,
struct joycon_stick_cal *cal_y,
const char *stick, int ret)
{
hid_warn(hdev,
"Failed to read %s stick cal, using defaults; e=%d\n",
stick, ret);
cal_x->center = cal_y->center = DFLT_STICK_CAL_CEN;
cal_x->max = cal_y->max = DFLT_STICK_CAL_MAX;
cal_x->min = cal_y->min = DFLT_STICK_CAL_MIN;
}
static int joycon_request_calibration(struct joycon_ctlr *ctlr)
{
u16 left_stick_addr = JC_CAL_FCT_DATA_LEFT_ADDR;
u16 right_stick_addr = JC_CAL_FCT_DATA_RIGHT_ADDR;
int ret;
hid_dbg(ctlr->hdev, "requesting cal data\n");
/* check if user stick calibrations are present */
if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_LEFT_MAGIC_ADDR)) {
left_stick_addr = JC_CAL_USR_LEFT_DATA_ADDR;
hid_info(ctlr->hdev, "using user cal for left stick\n");
} else {
hid_info(ctlr->hdev, "using factory cal for left stick\n");
}
if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_RIGHT_MAGIC_ADDR)) {
right_stick_addr = JC_CAL_USR_RIGHT_DATA_ADDR;
hid_info(ctlr->hdev, "using user cal for right stick\n");
} else {
hid_info(ctlr->hdev, "using factory cal for right stick\n");
}
/* read the left stick calibration data */
ret = joycon_read_stick_calibration(ctlr, left_stick_addr,
&ctlr->left_stick_cal_x,
&ctlr->left_stick_cal_y,
true);
if (ret)
joycon_use_default_calibration(ctlr->hdev,
&ctlr->left_stick_cal_x,
&ctlr->left_stick_cal_y,
"left", ret);
/* read the right stick calibration data */
ret = joycon_read_stick_calibration(ctlr, right_stick_addr,
&ctlr->right_stick_cal_x,
&ctlr->right_stick_cal_y,
false);
if (ret)
joycon_use_default_calibration(ctlr->hdev,
&ctlr->right_stick_cal_x,
&ctlr->right_stick_cal_y,
"right", ret);
hid_dbg(ctlr->hdev, "calibration:\n"
"l_x_c=%d l_x_max=%d l_x_min=%d\n"
"l_y_c=%d l_y_max=%d l_y_min=%d\n"
"r_x_c=%d r_x_max=%d r_x_min=%d\n"
"r_y_c=%d r_y_max=%d r_y_min=%d\n",
ctlr->left_stick_cal_x.center,
ctlr->left_stick_cal_x.max,
ctlr->left_stick_cal_x.min,
ctlr->left_stick_cal_y.center,
ctlr->left_stick_cal_y.max,
ctlr->left_stick_cal_y.min,
ctlr->right_stick_cal_x.center,
ctlr->right_stick_cal_x.max,
ctlr->right_stick_cal_x.min,
ctlr->right_stick_cal_y.center,
ctlr->right_stick_cal_y.max,
ctlr->right_stick_cal_y.min);
return 0;
}
/*
* These divisors are calculated once rather than for each sample. They are only
* dependent on the IMU calibration values. They are used when processing the
* IMU input reports.
*/
static void joycon_calc_imu_cal_divisors(struct joycon_ctlr *ctlr)
{
int i;
for (i = 0; i < 3; i++) {
ctlr->imu_cal_accel_divisor[i] = ctlr->accel_cal.scale[i] -
ctlr->accel_cal.offset[i];
ctlr->imu_cal_gyro_divisor[i] = ctlr->gyro_cal.scale[i] -
ctlr->gyro_cal.offset[i];
}
}
static const s16 DFLT_ACCEL_OFFSET /*= 0*/;
static const s16 DFLT_ACCEL_SCALE = 16384;
static const s16 DFLT_GYRO_OFFSET /*= 0*/;
static const s16 DFLT_GYRO_SCALE = 13371;
static int joycon_request_imu_calibration(struct joycon_ctlr *ctlr)
{
u16 imu_cal_addr = JC_IMU_CAL_FCT_DATA_ADDR;
u8 *raw_cal;
int ret;
int i;
/* check if user calibration exists */
if (!joycon_check_for_cal_magic(ctlr, JC_IMU_CAL_USR_MAGIC_ADDR)) {
imu_cal_addr = JC_IMU_CAL_USR_DATA_ADDR;
hid_info(ctlr->hdev, "using user cal for IMU\n");
} else {
hid_info(ctlr->hdev, "using factory cal for IMU\n");
}
/* request IMU calibration data */
hid_dbg(ctlr->hdev, "requesting IMU cal data\n");
ret = joycon_request_spi_flash_read(ctlr, imu_cal_addr,
JC_IMU_CAL_DATA_SIZE, &raw_cal);
if (ret) {
hid_warn(ctlr->hdev,
"Failed to read IMU cal, using defaults; ret=%d\n",
ret);
for (i = 0; i < 3; i++) {
ctlr->accel_cal.offset[i] = DFLT_ACCEL_OFFSET;
ctlr->accel_cal.scale[i] = DFLT_ACCEL_SCALE;
ctlr->gyro_cal.offset[i] = DFLT_GYRO_OFFSET;
ctlr->gyro_cal.scale[i] = DFLT_GYRO_SCALE;
}
joycon_calc_imu_cal_divisors(ctlr);
return ret;
}
/* IMU calibration parsing */
for (i = 0; i < 3; i++) {
int j = i * 2;
ctlr->accel_cal.offset[i] = get_unaligned_le16(raw_cal + j);
ctlr->accel_cal.scale[i] = get_unaligned_le16(raw_cal + j + 6);
ctlr->gyro_cal.offset[i] = get_unaligned_le16(raw_cal + j + 12);
ctlr->gyro_cal.scale[i] = get_unaligned_le16(raw_cal + j + 18);
}
joycon_calc_imu_cal_divisors(ctlr);
hid_dbg(ctlr->hdev, "IMU calibration:\n"
"a_o[0]=%d a_o[1]=%d a_o[2]=%d\n"
"a_s[0]=%d a_s[1]=%d a_s[2]=%d\n"
"g_o[0]=%d g_o[1]=%d g_o[2]=%d\n"
"g_s[0]=%d g_s[1]=%d g_s[2]=%d\n",
ctlr->accel_cal.offset[0],
ctlr->accel_cal.offset[1],
ctlr->accel_cal.offset[2],
ctlr->accel_cal.scale[0],
ctlr->accel_cal.scale[1],
ctlr->accel_cal.scale[2],
ctlr->gyro_cal.offset[0],
ctlr->gyro_cal.offset[1],
ctlr->gyro_cal.offset[2],
ctlr->gyro_cal.scale[0],
ctlr->gyro_cal.scale[1],
ctlr->gyro_cal.scale[2]);
return 0;
}
static int joycon_set_report_mode(struct joycon_ctlr *ctlr)
{
struct joycon_subcmd_request *req;
u8 buffer[sizeof(*req) + 1] = { 0 };
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_SET_REPORT_MODE;
req->data[0] = 0x30; /* standard, full report mode */
hid_dbg(ctlr->hdev, "setting controller report mode\n");
return joycon_send_subcmd(ctlr, req, 1, HZ);
}
static int joycon_enable_rumble(struct joycon_ctlr *ctlr)
{
struct joycon_subcmd_request *req;
u8 buffer[sizeof(*req) + 1] = { 0 };
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_ENABLE_VIBRATION;
req->data[0] = 0x01; /* note: 0x00 would disable */
hid_dbg(ctlr->hdev, "enabling rumble\n");
return joycon_send_subcmd(ctlr, req, 1, HZ/4);
}
static int joycon_enable_imu(struct joycon_ctlr *ctlr)
{
struct joycon_subcmd_request *req;
u8 buffer[sizeof(*req) + 1] = { 0 };
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_ENABLE_IMU;
req->data[0] = 0x01; /* note: 0x00 would disable */
hid_dbg(ctlr->hdev, "enabling IMU\n");
return joycon_send_subcmd(ctlr, req, 1, HZ);
}
static s32 joycon_map_stick_val(struct joycon_stick_cal *cal, s32 val)
{
s32 center = cal->center;
s32 min = cal->min;
s32 max = cal->max;
s32 new_val;
if (val > center) {
new_val = (val - center) * JC_MAX_STICK_MAG;
new_val /= (max - center);
} else {
new_val = (center - val) * -JC_MAX_STICK_MAG;
new_val /= (center - min);
}
new_val = clamp(new_val, (s32)-JC_MAX_STICK_MAG, (s32)JC_MAX_STICK_MAG);
return new_val;
}
static void joycon_input_report_parse_imu_data(struct joycon_ctlr *ctlr,
struct joycon_input_report *rep,
struct joycon_imu_data *imu_data)
{
u8 *raw = rep->imu_raw_bytes;
int i;
for (i = 0; i < 3; i++) {
struct joycon_imu_data *data = &imu_data[i];
data->accel_x = get_unaligned_le16(raw + 0);
data->accel_y = get_unaligned_le16(raw + 2);
data->accel_z = get_unaligned_le16(raw + 4);
data->gyro_x = get_unaligned_le16(raw + 6);
data->gyro_y = get_unaligned_le16(raw + 8);
data->gyro_z = get_unaligned_le16(raw + 10);
/* point to next imu sample */
raw += sizeof(struct joycon_imu_data);
}
}
static void joycon_parse_imu_report(struct joycon_ctlr *ctlr,
struct joycon_input_report *rep)
{
struct joycon_imu_data imu_data[3] = {0}; /* 3 reports per packet */
struct input_dev *idev = ctlr->imu_input;
unsigned int msecs = jiffies_to_msecs(jiffies);
unsigned int last_msecs = ctlr->imu_last_pkt_ms;
int i;
int value[6];
joycon_input_report_parse_imu_data(ctlr, rep, imu_data);
/*
* There are complexities surrounding how we determine the timestamps we
* associate with the samples we pass to userspace. The IMU input
* reports do not provide us with a good timestamp. There's a quickly
* incrementing 8-bit counter per input report, but it is not very
* useful for this purpose (it is not entirely clear what rate it
* increments at or if it varies based on packet push rate - more on
* the push rate below...).
*
* The reverse engineering work done on the joy-cons and pro controllers
* by the community seems to indicate the following:
* - The controller samples the IMU every 1.35ms. It then does some of
* its own processing, probably averaging the samples out.
* - Each imu input report contains 3 IMU samples, (usually 5ms apart).
* - In the standard reporting mode (which this driver uses exclusively)
* input reports are pushed from the controller as follows:
* * joy-con (bluetooth): every 15 ms
* * joy-cons (in charging grip via USB): every 15 ms
* * pro controller (USB): every 15 ms
* * pro controller (bluetooth): every 8 ms (this is the wildcard)
*
* Further complicating matters is that some bluetooth stacks are known
* to alter the controller's packet rate by hardcoding the bluetooth
* SSR for the switch controllers (android's stack currently sets the
* SSR to 11ms for both the joy-cons and pro controllers).
*
* In my own testing, I've discovered that my pro controller either
* reports IMU sample batches every 11ms or every 15ms. This rate is
* stable after connecting. It isn't 100% clear what determines this
* rate. Importantly, even when sending every 11ms, none of the samples
* are duplicates. This seems to indicate that the time deltas between
* reported samples can vary based on the input report rate.
*
* The solution employed in this driver is to keep track of the average
* time delta between IMU input reports. In testing, this value has
* proven to be stable, staying at 15ms or 11ms, though other hardware
* configurations and bluetooth stacks could potentially see other rates
* (hopefully this will become more clear as more people use the
* driver).
*
* Keeping track of the average report delta allows us to submit our
* timestamps to userspace based on that. Each report contains 3
* samples, so the IMU sampling rate should be avg_time_delta/3. We can
* also use this average to detect events where we have dropped a
* packet. The userspace timestamp for the samples will be adjusted
* accordingly to prevent unwanted behvaior.
*/
if (!ctlr->imu_first_packet_received) {
ctlr->imu_timestamp_us = 0;
ctlr->imu_delta_samples_count = 0;
ctlr->imu_delta_samples_sum = 0;
ctlr->imu_avg_delta_ms = JC_IMU_DFLT_AVG_DELTA_MS;
ctlr->imu_first_packet_received = true;
} else {
unsigned int delta = msecs - last_msecs;
unsigned int dropped_pkts;
unsigned int dropped_threshold;
/* avg imu report delta housekeeping */
ctlr->imu_delta_samples_sum += delta;
ctlr->imu_delta_samples_count++;
if (ctlr->imu_delta_samples_count >=
JC_IMU_SAMPLES_PER_DELTA_AVG) {
ctlr->imu_avg_delta_ms = ctlr->imu_delta_samples_sum /
ctlr->imu_delta_samples_count;
/* don't ever want divide by zero shenanigans */
if (ctlr->imu_avg_delta_ms == 0) {
ctlr->imu_avg_delta_ms = 1;
hid_warn(ctlr->hdev,
"calculated avg imu delta of 0\n");
}
ctlr->imu_delta_samples_count = 0;
ctlr->imu_delta_samples_sum = 0;
}
/* useful for debugging IMU sample rate */
hid_dbg(ctlr->hdev,
"imu_report: ms=%u last_ms=%u delta=%u avg_delta=%u\n",
msecs, last_msecs, delta, ctlr->imu_avg_delta_ms);
/* check if any packets have been dropped */
dropped_threshold = ctlr->imu_avg_delta_ms * 3 / 2;
dropped_pkts = (delta - min(delta, dropped_threshold)) /
ctlr->imu_avg_delta_ms;
ctlr->imu_timestamp_us += 1000 * ctlr->imu_avg_delta_ms;
if (dropped_pkts > JC_IMU_DROPPED_PKT_WARNING) {
hid_warn(ctlr->hdev,
"compensating for %u dropped IMU reports\n",
dropped_pkts);
hid_warn(ctlr->hdev,
"delta=%u avg_delta=%u\n",
delta, ctlr->imu_avg_delta_ms);
}
}
ctlr->imu_last_pkt_ms = msecs;
/* Each IMU input report contains three samples */
for (i = 0; i < 3; i++) {
input_event(idev, EV_MSC, MSC_TIMESTAMP,
ctlr->imu_timestamp_us);
/*
* These calculations (which use the controller's calibration
* settings to improve the final values) are based on those
* found in the community's reverse-engineering repo (linked at
* top of driver). For hid-nintendo, we make sure that the final
* value given to userspace is always in terms of the axis
* resolution we provided.
*
* Currently only the gyro calculations subtract the calibration
* offsets from the raw value itself. In testing, doing the same
* for the accelerometer raw values decreased accuracy.
*
* Note that the gyro values are multiplied by the
* precision-saving scaling factor to prevent large inaccuracies
* due to truncation of the resolution value which would
* otherwise occur. To prevent overflow (without resorting to 64
* bit integer math), the mult_frac macro is used.
*/
value[0] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
(imu_data[i].gyro_x -
ctlr->gyro_cal.offset[0])),
ctlr->gyro_cal.scale[0],
ctlr->imu_cal_gyro_divisor[0]);
value[1] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
(imu_data[i].gyro_y -
ctlr->gyro_cal.offset[1])),
ctlr->gyro_cal.scale[1],
ctlr->imu_cal_gyro_divisor[1]);
value[2] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
(imu_data[i].gyro_z -
ctlr->gyro_cal.offset[2])),
ctlr->gyro_cal.scale[2],
ctlr->imu_cal_gyro_divisor[2]);
value[3] = ((s32)imu_data[i].accel_x *
ctlr->accel_cal.scale[0]) /
ctlr->imu_cal_accel_divisor[0];
value[4] = ((s32)imu_data[i].accel_y *
ctlr->accel_cal.scale[1]) /
ctlr->imu_cal_accel_divisor[1];
value[5] = ((s32)imu_data[i].accel_z *
ctlr->accel_cal.scale[2]) /
ctlr->imu_cal_accel_divisor[2];
hid_dbg(ctlr->hdev, "raw_gyro: g_x=%d g_y=%d g_z=%d\n",
imu_data[i].gyro_x, imu_data[i].gyro_y,
imu_data[i].gyro_z);
hid_dbg(ctlr->hdev, "raw_accel: a_x=%d a_y=%d a_z=%d\n",
imu_data[i].accel_x, imu_data[i].accel_y,
imu_data[i].accel_z);
/*
* The right joy-con has 2 axes negated, Y and Z. This is due to
* the orientation of the IMU in the controller. We negate those
* axes' values in order to be consistent with the left joy-con
* and the pro controller:
* X: positive is pointing toward the triggers
* Y: positive is pointing to the left
* Z: positive is pointing up (out of the buttons/sticks)
* The axes follow the right-hand rule.
*/
if (jc_type_is_joycon(ctlr) && jc_type_has_right(ctlr)) {
int j;
/* negate all but x axis */
for (j = 1; j < 6; ++j) {
if (j == 3)
continue;
value[j] *= -1;
}
}
input_report_abs(idev, ABS_RX, value[0]);
input_report_abs(idev, ABS_RY, value[1]);
input_report_abs(idev, ABS_RZ, value[2]);
input_report_abs(idev, ABS_X, value[3]);
input_report_abs(idev, ABS_Y, value[4]);
input_report_abs(idev, ABS_Z, value[5]);
input_sync(idev);
/* convert to micros and divide by 3 (3 samples per report). */
ctlr->imu_timestamp_us += ctlr->imu_avg_delta_ms * 1000 / 3;
}
}
static void joycon_parse_report(struct joycon_ctlr *ctlr,
struct joycon_input_report *rep)
{
struct input_dev *dev = ctlr->input;
unsigned long flags;
u8 tmp;
u32 btns;
unsigned long msecs = jiffies_to_msecs(jiffies);
unsigned long report_delta_ms = msecs - ctlr->last_input_report_msecs;
spin_lock_irqsave(&ctlr->lock, flags);
if (IS_ENABLED(CONFIG_NINTENDO_FF) && rep->vibrator_report &&
ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED &&
(msecs - ctlr->rumble_msecs) >= JC_RUMBLE_PERIOD_MS &&
(ctlr->rumble_queue_head != ctlr->rumble_queue_tail ||
ctlr->rumble_zero_countdown > 0)) {
/*
* When this value reaches 0, we know we've sent multiple
* packets to the controller instructing it to disable rumble.
* We can safely stop sending periodic rumble packets until the
* next ff effect.
*/
if (ctlr->rumble_zero_countdown > 0)
ctlr->rumble_zero_countdown--;
queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
}
/* Parse the battery status */
tmp = rep->bat_con;
ctlr->host_powered = tmp & BIT(0);
ctlr->battery_charging = tmp & BIT(4);
tmp = tmp >> 5;
switch (tmp) {
case 0: /* empty */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
break;
case 1: /* low */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
break;
case 2: /* medium */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
break;
case 3: /* high */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
break;
case 4: /* full */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
break;
default:
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
hid_warn(ctlr->hdev, "Invalid battery status\n");
break;
}
spin_unlock_irqrestore(&ctlr->lock, flags);
/* Parse the buttons and sticks */
btns = hid_field_extract(ctlr->hdev, rep->button_status, 0, 24);
if (jc_type_has_left(ctlr)) {
u16 raw_x;
u16 raw_y;
s32 x;
s32 y;
/* get raw stick values */
raw_x = hid_field_extract(ctlr->hdev, rep->left_stick, 0, 12);
raw_y = hid_field_extract(ctlr->hdev,
rep->left_stick + 1, 4, 12);
/* map the stick values */
x = joycon_map_stick_val(&ctlr->left_stick_cal_x, raw_x);
y = -joycon_map_stick_val(&ctlr->left_stick_cal_y, raw_y);
/* report sticks */
input_report_abs(dev, ABS_X, x);
input_report_abs(dev, ABS_Y, y);
/* report buttons */
input_report_key(dev, BTN_TL, btns & JC_BTN_L);
input_report_key(dev, BTN_TL2, btns & JC_BTN_ZL);
input_report_key(dev, BTN_SELECT, btns & JC_BTN_MINUS);
input_report_key(dev, BTN_THUMBL, btns & JC_BTN_LSTICK);
input_report_key(dev, BTN_Z, btns & JC_BTN_CAP);
if (jc_type_is_joycon(ctlr)) {
/* Report the S buttons as the non-existent triggers */
input_report_key(dev, BTN_TR, btns & JC_BTN_SL_L);
input_report_key(dev, BTN_TR2, btns & JC_BTN_SR_L);
/* Report d-pad as digital buttons for the joy-cons */
input_report_key(dev, BTN_DPAD_DOWN,
btns & JC_BTN_DOWN);
input_report_key(dev, BTN_DPAD_UP, btns & JC_BTN_UP);
input_report_key(dev, BTN_DPAD_RIGHT,
btns & JC_BTN_RIGHT);
input_report_key(dev, BTN_DPAD_LEFT,
btns & JC_BTN_LEFT);
} else {
int hatx = 0;
int haty = 0;
/* d-pad x */
if (btns & JC_BTN_LEFT)
hatx = -1;
else if (btns & JC_BTN_RIGHT)
hatx = 1;
input_report_abs(dev, ABS_HAT0X, hatx);
/* d-pad y */
if (btns & JC_BTN_UP)
haty = -1;
else if (btns & JC_BTN_DOWN)
haty = 1;
input_report_abs(dev, ABS_HAT0Y, haty);
}
}
if (jc_type_has_right(ctlr)) {
u16 raw_x;
u16 raw_y;
s32 x;
s32 y;
/* get raw stick values */
raw_x = hid_field_extract(ctlr->hdev, rep->right_stick, 0, 12);
raw_y = hid_field_extract(ctlr->hdev,
rep->right_stick + 1, 4, 12);
/* map stick values */
x = joycon_map_stick_val(&ctlr->right_stick_cal_x, raw_x);
y = -joycon_map_stick_val(&ctlr->right_stick_cal_y, raw_y);
/* report sticks */
input_report_abs(dev, ABS_RX, x);
input_report_abs(dev, ABS_RY, y);
/* report buttons */
input_report_key(dev, BTN_TR, btns & JC_BTN_R);
input_report_key(dev, BTN_TR2, btns & JC_BTN_ZR);
if (jc_type_is_joycon(ctlr)) {
/* Report the S buttons as the non-existent triggers */
input_report_key(dev, BTN_TL, btns & JC_BTN_SL_R);
input_report_key(dev, BTN_TL2, btns & JC_BTN_SR_R);
}
input_report_key(dev, BTN_START, btns & JC_BTN_PLUS);
input_report_key(dev, BTN_THUMBR, btns & JC_BTN_RSTICK);
input_report_key(dev, BTN_MODE, btns & JC_BTN_HOME);
input_report_key(dev, BTN_WEST, btns & JC_BTN_Y);
input_report_key(dev, BTN_NORTH, btns & JC_BTN_X);
input_report_key(dev, BTN_EAST, btns & JC_BTN_A);
input_report_key(dev, BTN_SOUTH, btns & JC_BTN_B);
}
input_sync(dev);
spin_lock_irqsave(&ctlr->lock, flags);
ctlr->last_input_report_msecs = msecs;
/*
* Was this input report a reasonable time delta compared to the prior
* report? We use this information to decide when a safe time is to send
* rumble packets or subcommand packets.
*/
if (report_delta_ms >= JC_INPUT_REPORT_MIN_DELTA &&
report_delta_ms <= JC_INPUT_REPORT_MAX_DELTA) {
if (ctlr->consecutive_valid_report_deltas < JC_SUBCMD_VALID_DELTA_REQ)
ctlr->consecutive_valid_report_deltas++;
} else {
ctlr->consecutive_valid_report_deltas = 0;
}
/*
* Our consecutive valid report tracking is only relevant for
* bluetooth-connected controllers. For USB devices, we're beholden to
* USB's underlying polling rate anyway. Always set to the consecutive
* delta requirement.
*/
if (ctlr->hdev->bus == BUS_USB)
ctlr->consecutive_valid_report_deltas = JC_SUBCMD_VALID_DELTA_REQ;
spin_unlock_irqrestore(&ctlr->lock, flags);
/*
* Immediately after receiving a report is the most reliable time to
* send a subcommand to the controller. Wake any subcommand senders
* waiting for a report.
*/
if (unlikely(mutex_is_locked(&ctlr->output_mutex))) {
spin_lock_irqsave(&ctlr->lock, flags);
ctlr->received_input_report = true;
spin_unlock_irqrestore(&ctlr->lock, flags);
wake_up(&ctlr->wait);
}
/* parse IMU data if present */
if (rep->id == JC_INPUT_IMU_DATA)
joycon_parse_imu_report(ctlr, rep);
}
static int joycon_send_rumble_data(struct joycon_ctlr *ctlr)
{
int ret;
unsigned long flags;
struct joycon_rumble_output rumble_output = { 0 };
spin_lock_irqsave(&ctlr->lock, flags);
/*
* If the controller has been removed, just return ENODEV so the LED
* subsystem doesn't print invalid errors on removal.
*/
if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) {
spin_unlock_irqrestore(&ctlr->lock, flags);
return -ENODEV;
}
memcpy(rumble_output.rumble_data,
ctlr->rumble_data[ctlr->rumble_queue_tail],
JC_RUMBLE_DATA_SIZE);
spin_unlock_irqrestore(&ctlr->lock, flags);
rumble_output.output_id = JC_OUTPUT_RUMBLE_ONLY;
rumble_output.packet_num = ctlr->subcmd_num;
if (++ctlr->subcmd_num > 0xF)
ctlr->subcmd_num = 0;
joycon_enforce_subcmd_rate(ctlr);
ret = __joycon_hid_send(ctlr->hdev, (u8 *)&rumble_output,
sizeof(rumble_output));
return ret;
}
static void joycon_rumble_worker(struct work_struct *work)
{
struct joycon_ctlr *ctlr = container_of(work, struct joycon_ctlr,
rumble_worker);
unsigned long flags;
bool again = true;
int ret;
while (again) {
mutex_lock(&ctlr->output_mutex);
ret = joycon_send_rumble_data(ctlr);
mutex_unlock(&ctlr->output_mutex);
/* -ENODEV means the controller was just unplugged */
spin_lock_irqsave(&ctlr->lock, flags);
if (ret < 0 && ret != -ENODEV &&
ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED)
hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret);
ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
if (ctlr->rumble_queue_tail != ctlr->rumble_queue_head) {
if (++ctlr->rumble_queue_tail >= JC_RUMBLE_QUEUE_SIZE)
ctlr->rumble_queue_tail = 0;
} else {
again = false;
}
spin_unlock_irqrestore(&ctlr->lock, flags);
}
}
#if IS_ENABLED(CONFIG_NINTENDO_FF)
static struct joycon_rumble_freq_data joycon_find_rumble_freq(u16 freq)
{
const size_t length = ARRAY_SIZE(joycon_rumble_frequencies);
const struct joycon_rumble_freq_data *data = joycon_rumble_frequencies;
int i = 0;
if (freq > data[0].freq) {
for (i = 1; i < length - 1; i++) {
if (freq > data[i - 1].freq && freq <= data[i].freq)
break;
}
}
return data[i];
}
static struct joycon_rumble_amp_data joycon_find_rumble_amp(u16 amp)
{
const size_t length = ARRAY_SIZE(joycon_rumble_amplitudes);
const struct joycon_rumble_amp_data *data = joycon_rumble_amplitudes;
int i = 0;
if (amp > data[0].amp) {
for (i = 1; i < length - 1; i++) {
if (amp > data[i - 1].amp && amp <= data[i].amp)
break;
}
}
return data[i];
}
static void joycon_encode_rumble(u8 *data, u16 freq_low, u16 freq_high, u16 amp)
{
struct joycon_rumble_freq_data freq_data_low;
struct joycon_rumble_freq_data freq_data_high;
struct joycon_rumble_amp_data amp_data;
freq_data_low = joycon_find_rumble_freq(freq_low);
freq_data_high = joycon_find_rumble_freq(freq_high);
amp_data = joycon_find_rumble_amp(amp);
data[0] = (freq_data_high.high >> 8) & 0xFF;
data[1] = (freq_data_high.high & 0xFF) + amp_data.high;
data[2] = freq_data_low.low + ((amp_data.low >> 8) & 0xFF);
data[3] = amp_data.low & 0xFF;
}
static const u16 JOYCON_MAX_RUMBLE_HIGH_FREQ = 1253;
static const u16 JOYCON_MIN_RUMBLE_HIGH_FREQ = 82;
static const u16 JOYCON_MAX_RUMBLE_LOW_FREQ = 626;
static const u16 JOYCON_MIN_RUMBLE_LOW_FREQ = 41;
static void joycon_clamp_rumble_freqs(struct joycon_ctlr *ctlr)
{
unsigned long flags;
spin_lock_irqsave(&ctlr->lock, flags);
ctlr->rumble_ll_freq = clamp(ctlr->rumble_ll_freq,
JOYCON_MIN_RUMBLE_LOW_FREQ,
JOYCON_MAX_RUMBLE_LOW_FREQ);
ctlr->rumble_lh_freq = clamp(ctlr->rumble_lh_freq,
JOYCON_MIN_RUMBLE_HIGH_FREQ,
JOYCON_MAX_RUMBLE_HIGH_FREQ);
ctlr->rumble_rl_freq = clamp(ctlr->rumble_rl_freq,
JOYCON_MIN_RUMBLE_LOW_FREQ,
JOYCON_MAX_RUMBLE_LOW_FREQ);
ctlr->rumble_rh_freq = clamp(ctlr->rumble_rh_freq,
JOYCON_MIN_RUMBLE_HIGH_FREQ,
JOYCON_MAX_RUMBLE_HIGH_FREQ);
spin_unlock_irqrestore(&ctlr->lock, flags);
}
static int joycon_set_rumble(struct joycon_ctlr *ctlr, u16 amp_r, u16 amp_l,
bool schedule_now)
{
u8 data[JC_RUMBLE_DATA_SIZE];
u16 amp;
u16 freq_r_low;
u16 freq_r_high;
u16 freq_l_low;
u16 freq_l_high;
unsigned long flags;
int next_rq_head;
spin_lock_irqsave(&ctlr->lock, flags);
freq_r_low = ctlr->rumble_rl_freq;
freq_r_high = ctlr->rumble_rh_freq;
freq_l_low = ctlr->rumble_ll_freq;
freq_l_high = ctlr->rumble_lh_freq;
/* limit number of silent rumble packets to reduce traffic */
if (amp_l != 0 || amp_r != 0)
ctlr->rumble_zero_countdown = JC_RUMBLE_ZERO_AMP_PKT_CNT;
spin_unlock_irqrestore(&ctlr->lock, flags);
/* right joy-con */
amp = amp_r * (u32)joycon_max_rumble_amp / 65535;
joycon_encode_rumble(data + 4, freq_r_low, freq_r_high, amp);
/* left joy-con */
amp = amp_l * (u32)joycon_max_rumble_amp / 65535;
joycon_encode_rumble(data, freq_l_low, freq_l_high, amp);
spin_lock_irqsave(&ctlr->lock, flags);
next_rq_head = ctlr->rumble_queue_head + 1;
if (next_rq_head >= JC_RUMBLE_QUEUE_SIZE)
next_rq_head = 0;
/* Did we overrun the circular buffer?
* If so, be sure we keep the latest intended rumble state.
*/
if (next_rq_head == ctlr->rumble_queue_tail) {
hid_dbg(ctlr->hdev, "rumble queue is full");
/* overwrite the prior value at the end of the circular buf */
next_rq_head = ctlr->rumble_queue_head;
}
ctlr->rumble_queue_head = next_rq_head;
memcpy(ctlr->rumble_data[ctlr->rumble_queue_head], data,
JC_RUMBLE_DATA_SIZE);
/* don't wait for the periodic send (reduces latency) */
if (schedule_now && ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED)
queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
spin_unlock_irqrestore(&ctlr->lock, flags);
return 0;
}
static int joycon_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct joycon_ctlr *ctlr = input_get_drvdata(dev);
if (effect->type != FF_RUMBLE)
return 0;
return joycon_set_rumble(ctlr,
effect->u.rumble.weak_magnitude,
effect->u.rumble.strong_magnitude,
true);
}
#endif /* IS_ENABLED(CONFIG_NINTENDO_FF) */
static const unsigned int joycon_button_inputs_l[] = {
BTN_SELECT, BTN_Z, BTN_THUMBL,
BTN_TL, BTN_TL2,
0 /* 0 signals end of array */
};
static const unsigned int joycon_button_inputs_r[] = {
BTN_START, BTN_MODE, BTN_THUMBR,
BTN_SOUTH, BTN_EAST, BTN_NORTH, BTN_WEST,
BTN_TR, BTN_TR2,
0 /* 0 signals end of array */
};
/* We report joy-con d-pad inputs as buttons and pro controller as a hat. */
static const unsigned int joycon_dpad_inputs_jc[] = {
BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT,
0 /* 0 signals end of array */
};
static int joycon_input_create(struct joycon_ctlr *ctlr)
{
struct hid_device *hdev;
const char *name;
const char *imu_name;
int ret;
int i;
hdev = ctlr->hdev;
switch (hdev->product) {
case USB_DEVICE_ID_NINTENDO_PROCON:
name = "Nintendo Switch Pro Controller";
imu_name = "Nintendo Switch Pro Controller IMU";
break;
case USB_DEVICE_ID_NINTENDO_CHRGGRIP:
if (jc_type_has_left(ctlr)) {
name = "Nintendo Switch Left Joy-Con (Grip)";
imu_name = "Nintendo Switch Left Joy-Con IMU (Grip)";
} else {
name = "Nintendo Switch Right Joy-Con (Grip)";
imu_name = "Nintendo Switch Right Joy-Con IMU (Grip)";
}
break;
case USB_DEVICE_ID_NINTENDO_JOYCONL:
name = "Nintendo Switch Left Joy-Con";
imu_name = "Nintendo Switch Left Joy-Con IMU";
break;
case USB_DEVICE_ID_NINTENDO_JOYCONR:
name = "Nintendo Switch Right Joy-Con";
imu_name = "Nintendo Switch Right Joy-Con IMU";
break;
default: /* Should be impossible */
hid_err(hdev, "Invalid hid product\n");
return -EINVAL;
}
ctlr->input = devm_input_allocate_device(&hdev->dev);
if (!ctlr->input)
return -ENOMEM;
ctlr->input->id.bustype = hdev->bus;
ctlr->input->id.vendor = hdev->vendor;
ctlr->input->id.product = hdev->product;
ctlr->input->id.version = hdev->version;
ctlr->input->uniq = ctlr->mac_addr_str;
ctlr->input->name = name;
ctlr->input->phys = hdev->phys;
input_set_drvdata(ctlr->input, ctlr);
/* set up sticks and buttons */
if (jc_type_has_left(ctlr)) {
input_set_abs_params(ctlr->input, ABS_X,
-JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
JC_STICK_FUZZ, JC_STICK_FLAT);
input_set_abs_params(ctlr->input, ABS_Y,
-JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
JC_STICK_FUZZ, JC_STICK_FLAT);
for (i = 0; joycon_button_inputs_l[i] > 0; i++)
input_set_capability(ctlr->input, EV_KEY,
joycon_button_inputs_l[i]);
/* configure d-pad differently for joy-con vs pro controller */
if (hdev->product != USB_DEVICE_ID_NINTENDO_PROCON) {
for (i = 0; joycon_dpad_inputs_jc[i] > 0; i++)
input_set_capability(ctlr->input, EV_KEY,
joycon_dpad_inputs_jc[i]);
} else {
input_set_abs_params(ctlr->input, ABS_HAT0X,
-JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG,
JC_DPAD_FUZZ, JC_DPAD_FLAT);
input_set_abs_params(ctlr->input, ABS_HAT0Y,
-JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG,
JC_DPAD_FUZZ, JC_DPAD_FLAT);
}
}
if (jc_type_has_right(ctlr)) {
input_set_abs_params(ctlr->input, ABS_RX,
-JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
JC_STICK_FUZZ, JC_STICK_FLAT);
input_set_abs_params(ctlr->input, ABS_RY,
-JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
JC_STICK_FUZZ, JC_STICK_FLAT);
for (i = 0; joycon_button_inputs_r[i] > 0; i++)
input_set_capability(ctlr->input, EV_KEY,
joycon_button_inputs_r[i]);
}
/* Let's report joy-con S triggers separately */
if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL) {
input_set_capability(ctlr->input, EV_KEY, BTN_TR);
input_set_capability(ctlr->input, EV_KEY, BTN_TR2);
} else if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR) {
input_set_capability(ctlr->input, EV_KEY, BTN_TL);
input_set_capability(ctlr->input, EV_KEY, BTN_TL2);
}
#if IS_ENABLED(CONFIG_NINTENDO_FF)
/* set up rumble */
input_set_capability(ctlr->input, EV_FF, FF_RUMBLE);
input_ff_create_memless(ctlr->input, NULL, joycon_play_effect);
ctlr->rumble_ll_freq = JC_RUMBLE_DFLT_LOW_FREQ;
ctlr->rumble_lh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
ctlr->rumble_rl_freq = JC_RUMBLE_DFLT_LOW_FREQ;
ctlr->rumble_rh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
joycon_clamp_rumble_freqs(ctlr);
joycon_set_rumble(ctlr, 0, 0, false);
ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
#endif
ret = input_register_device(ctlr->input);
if (ret)
return ret;
/* configure the imu input device */
ctlr->imu_input = devm_input_allocate_device(&hdev->dev);
if (!ctlr->imu_input)
return -ENOMEM;
ctlr->imu_input->id.bustype = hdev->bus;
ctlr->imu_input->id.vendor = hdev->vendor;
ctlr->imu_input->id.product = hdev->product;
ctlr->imu_input->id.version = hdev->version;
ctlr->imu_input->uniq = ctlr->mac_addr_str;
ctlr->imu_input->name = imu_name;
ctlr->imu_input->phys = hdev->phys;
input_set_drvdata(ctlr->imu_input, ctlr);
/* configure imu axes */
input_set_abs_params(ctlr->imu_input, ABS_X,
-JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
input_set_abs_params(ctlr->imu_input, ABS_Y,
-JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
input_set_abs_params(ctlr->imu_input, ABS_Z,
-JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
input_abs_set_res(ctlr->imu_input, ABS_X, JC_IMU_ACCEL_RES_PER_G);
input_abs_set_res(ctlr->imu_input, ABS_Y, JC_IMU_ACCEL_RES_PER_G);
input_abs_set_res(ctlr->imu_input, ABS_Z, JC_IMU_ACCEL_RES_PER_G);
input_set_abs_params(ctlr->imu_input, ABS_RX,
-JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
input_set_abs_params(ctlr->imu_input, ABS_RY,
-JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
input_set_abs_params(ctlr->imu_input, ABS_RZ,
-JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
input_abs_set_res(ctlr->imu_input, ABS_RX, JC_IMU_GYRO_RES_PER_DPS);
input_abs_set_res(ctlr->imu_input, ABS_RY, JC_IMU_GYRO_RES_PER_DPS);
input_abs_set_res(ctlr->imu_input, ABS_RZ, JC_IMU_GYRO_RES_PER_DPS);
__set_bit(EV_MSC, ctlr->imu_input->evbit);
__set_bit(MSC_TIMESTAMP, ctlr->imu_input->mscbit);
__set_bit(INPUT_PROP_ACCELEROMETER, ctlr->imu_input->propbit);
ret = input_register_device(ctlr->imu_input);
if (ret)
return ret;
return 0;
}
static int joycon_player_led_brightness_set(struct led_classdev *led,
enum led_brightness brightness)
{
struct device *dev = led->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct joycon_ctlr *ctlr;
int val = 0;
int i;
int ret;
int num;
ctlr = hid_get_drvdata(hdev);
if (!ctlr) {
hid_err(hdev, "No controller data\n");
return -ENODEV;
}
/* determine which player led this is */
for (num = 0; num < JC_NUM_LEDS; num++) {
if (&ctlr->leds[num] == led)
break;
}
if (num >= JC_NUM_LEDS)
return -EINVAL;
mutex_lock(&ctlr->output_mutex);
for (i = 0; i < JC_NUM_LEDS; i++) {
if (i == num)
val |= brightness << i;
else
val |= ctlr->leds[i].brightness << i;
}
ret = joycon_set_player_leds(ctlr, 0, val);
mutex_unlock(&ctlr->output_mutex);
return ret;
}
static int joycon_home_led_brightness_set(struct led_classdev *led,
enum led_brightness brightness)
{
struct device *dev = led->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct joycon_ctlr *ctlr;
struct joycon_subcmd_request *req;
u8 buffer[sizeof(*req) + 5] = { 0 };
u8 *data;
int ret;
ctlr = hid_get_drvdata(hdev);
if (!ctlr) {
hid_err(hdev, "No controller data\n");
return -ENODEV;
}
req = (struct joycon_subcmd_request *)buffer;
req->subcmd_id = JC_SUBCMD_SET_HOME_LIGHT;
data = req->data;
data[0] = 0x01;
data[1] = brightness << 4;
data[2] = brightness | (brightness << 4);
data[3] = 0x11;
data[4] = 0x11;
hid_dbg(hdev, "setting home led brightness\n");
mutex_lock(&ctlr->output_mutex);
ret = joycon_send_subcmd(ctlr, req, 5, HZ/4);
mutex_unlock(&ctlr->output_mutex);
return ret;
}
static DEFINE_MUTEX(joycon_input_num_mutex);
static int joycon_leds_create(struct joycon_ctlr *ctlr)
{
struct hid_device *hdev = ctlr->hdev;
struct device *dev = &hdev->dev;
const char *d_name = dev_name(dev);
struct led_classdev *led;
char *name;
int ret = 0;
int i;
static int input_num = 1;
/* Set the default controller player leds based on controller number */
mutex_lock(&joycon_input_num_mutex);
mutex_lock(&ctlr->output_mutex);
ret = joycon_set_player_leds(ctlr, 0, 0xF >> (4 - input_num));
if (ret)
hid_warn(ctlr->hdev, "Failed to set leds; ret=%d\n", ret);
mutex_unlock(&ctlr->output_mutex);
/* configure the player LEDs */
for (i = 0; i < JC_NUM_LEDS; i++) {
name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s",
d_name,
"green",
joycon_player_led_names[i]);
if (!name) {
mutex_unlock(&joycon_input_num_mutex);
return -ENOMEM;
}
led = &ctlr->leds[i];
led->name = name;
led->brightness = ((i + 1) <= input_num) ? 1 : 0;
led->max_brightness = 1;
led->brightness_set_blocking =
joycon_player_led_brightness_set;
led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE;
ret = devm_led_classdev_register(&hdev->dev, led);
if (ret) {
hid_err(hdev, "Failed registering %s LED\n", led->name);
mutex_unlock(&joycon_input_num_mutex);
return ret;
}
}
if (++input_num > 4)
input_num = 1;
mutex_unlock(&joycon_input_num_mutex);
/* configure the home LED */
if (jc_type_has_right(ctlr)) {
name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s",
d_name,
"blue",
LED_FUNCTION_PLAYER5);
if (!name)
return -ENOMEM;
led = &ctlr->home_led;
led->name = name;
led->brightness = 0;
led->max_brightness = 0xF;
led->brightness_set_blocking = joycon_home_led_brightness_set;
led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE;
ret = devm_led_classdev_register(&hdev->dev, led);
if (ret) {
hid_err(hdev, "Failed registering home led\n");
return ret;
}
/* Set the home LED to 0 as default state */
ret = joycon_home_led_brightness_set(led, 0);
if (ret) {
hid_warn(hdev, "Failed to set home LED default, unregistering home LED");
devm_led_classdev_unregister(&hdev->dev, led);
}
}
return 0;
}
static int joycon_battery_get_property(struct power_supply *supply,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct joycon_ctlr *ctlr = power_supply_get_drvdata(supply);
unsigned long flags;
int ret = 0;
u8 capacity;
bool charging;
bool powered;
spin_lock_irqsave(&ctlr->lock, flags);
capacity = ctlr->battery_capacity;
charging = ctlr->battery_charging;
powered = ctlr->host_powered;
spin_unlock_irqrestore(&ctlr->lock, flags);
switch (prop) {
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
val->intval = capacity;
break;
case POWER_SUPPLY_PROP_STATUS:
if (charging)
val->intval = POWER_SUPPLY_STATUS_CHARGING;
else if (capacity == POWER_SUPPLY_CAPACITY_LEVEL_FULL &&
powered)
val->intval = POWER_SUPPLY_STATUS_FULL;
else
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static enum power_supply_property joycon_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY_LEVEL,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_STATUS,
};
static int joycon_power_supply_create(struct joycon_ctlr *ctlr)
{
struct hid_device *hdev = ctlr->hdev;
struct power_supply_config supply_config = { .drv_data = ctlr, };
const char * const name_fmt = "nintendo_switch_controller_battery_%s";
int ret = 0;
/* Set initially to unknown before receiving first input report */
ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
/* Configure the battery's description */
ctlr->battery_desc.properties = joycon_battery_props;
ctlr->battery_desc.num_properties =
ARRAY_SIZE(joycon_battery_props);
ctlr->battery_desc.get_property = joycon_battery_get_property;
ctlr->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
ctlr->battery_desc.use_for_apm = 0;
ctlr->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
name_fmt,
dev_name(&hdev->dev));
if (!ctlr->battery_desc.name)
return -ENOMEM;
ctlr->battery = devm_power_supply_register(&hdev->dev,
&ctlr->battery_desc,
&supply_config);
if (IS_ERR(ctlr->battery)) {
ret = PTR_ERR(ctlr->battery);
hid_err(hdev, "Failed to register battery; ret=%d\n", ret);
return ret;
}
return power_supply_powers(ctlr->battery, &hdev->dev);
}
static int joycon_read_info(struct joycon_ctlr *ctlr)
{
int ret;
int i;
int j;
struct joycon_subcmd_request req = { 0 };
struct joycon_input_report *report;
req.subcmd_id = JC_SUBCMD_REQ_DEV_INFO;
ret = joycon_send_subcmd(ctlr, &req, 0, HZ);
if (ret) {
hid_err(ctlr->hdev, "Failed to get joycon info; ret=%d\n", ret);
return ret;
}
report = (struct joycon_input_report *)ctlr->input_buf;
for (i = 4, j = 0; j < 6; i++, j++)
ctlr->mac_addr[j] = report->subcmd_reply.data[i];
ctlr->mac_addr_str = devm_kasprintf(&ctlr->hdev->dev, GFP_KERNEL,
"%02X:%02X:%02X:%02X:%02X:%02X",
ctlr->mac_addr[0],
ctlr->mac_addr[1],
ctlr->mac_addr[2],
ctlr->mac_addr[3],
ctlr->mac_addr[4],
ctlr->mac_addr[5]);
if (!ctlr->mac_addr_str)
return -ENOMEM;
hid_info(ctlr->hdev, "controller MAC = %s\n", ctlr->mac_addr_str);
/* Retrieve the type so we can distinguish for charging grip */
ctlr->ctlr_type = report->subcmd_reply.data[2];
return 0;
}
/* Common handler for parsing inputs */
static int joycon_ctlr_read_handler(struct joycon_ctlr *ctlr, u8 *data,
int size)
{
if (data[0] == JC_INPUT_SUBCMD_REPLY || data[0] == JC_INPUT_IMU_DATA ||
data[0] == JC_INPUT_MCU_DATA) {
if (size >= 12) /* make sure it contains the input report */
joycon_parse_report(ctlr,
(struct joycon_input_report *)data);
}
return 0;
}
static int joycon_ctlr_handle_event(struct joycon_ctlr *ctlr, u8 *data,
int size)
{
int ret = 0;
bool match = false;
struct joycon_input_report *report;
if (unlikely(mutex_is_locked(&ctlr->output_mutex)) &&
ctlr->msg_type != JOYCON_MSG_TYPE_NONE) {
switch (ctlr->msg_type) {
case JOYCON_MSG_TYPE_USB:
if (size < 2)
break;
if (data[0] == JC_INPUT_USB_RESPONSE &&
data[1] == ctlr->usb_ack_match)
match = true;
break;
case JOYCON_MSG_TYPE_SUBCMD:
if (size < sizeof(struct joycon_input_report) ||
data[0] != JC_INPUT_SUBCMD_REPLY)
break;
report = (struct joycon_input_report *)data;
if (report->subcmd_reply.id == ctlr->subcmd_ack_match)
match = true;
break;
default:
break;
}
if (match) {
memcpy(ctlr->input_buf, data,
min(size, (int)JC_MAX_RESP_SIZE));
ctlr->msg_type = JOYCON_MSG_TYPE_NONE;
ctlr->received_resp = true;
wake_up(&ctlr->wait);
/* This message has been handled */
return 1;
}
}
if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ)
ret = joycon_ctlr_read_handler(ctlr, data, size);
return ret;
}
static int nintendo_hid_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
if (size < 1)
return -EINVAL;
return joycon_ctlr_handle_event(ctlr, raw_data, size);
}
static int nintendo_hid_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
struct joycon_ctlr *ctlr;
hid_dbg(hdev, "probe - start\n");
ctlr = devm_kzalloc(&hdev->dev, sizeof(*ctlr), GFP_KERNEL);
if (!ctlr) {
ret = -ENOMEM;
goto err;
}
ctlr->hdev = hdev;
ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT;
ctlr->rumble_queue_head = 0;
ctlr->rumble_queue_tail = 0;
hid_set_drvdata(hdev, ctlr);
mutex_init(&ctlr->output_mutex);
init_waitqueue_head(&ctlr->wait);
spin_lock_init(&ctlr->lock);
ctlr->rumble_queue = alloc_workqueue("hid-nintendo-rumble_wq",
WQ_FREEZABLE | WQ_MEM_RECLAIM, 0);
if (!ctlr->rumble_queue) {
ret = -ENOMEM;
goto err;
}
INIT_WORK(&ctlr->rumble_worker, joycon_rumble_worker);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "HID parse failed\n");
goto err_wq;
}
/*
* Patch the hw version of pro controller/joycons, so applications can
* distinguish between the default HID mappings and the mappings defined
* by the Linux game controller spec. This is important for the SDL2
* library, which has a game controller database, which uses device ids
* in combination with version as a key.
*/
hdev->version |= 0x8000;
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "HW start failed\n");
goto err_wq;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "cannot start hardware I/O\n");
goto err_stop;
}
hid_device_io_start(hdev);
/* Initialize the controller */
mutex_lock(&ctlr->output_mutex);
/* if handshake command fails, assume ble pro controller */
if ((jc_type_is_procon(ctlr) || jc_type_is_chrggrip(ctlr)) &&
!joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ)) {
hid_dbg(hdev, "detected USB controller\n");
/* set baudrate for improved latency */
ret = joycon_send_usb(ctlr, JC_USB_CMD_BAUDRATE_3M, HZ);
if (ret) {
hid_err(hdev, "Failed to set baudrate; ret=%d\n", ret);
goto err_mutex;
}
/* handshake */
ret = joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ);
if (ret) {
hid_err(hdev, "Failed handshake; ret=%d\n", ret);
goto err_mutex;
}
/*
* Set no timeout (to keep controller in USB mode).
* This doesn't send a response, so ignore the timeout.
*/
joycon_send_usb(ctlr, JC_USB_CMD_NO_TIMEOUT, HZ/10);
} else if (jc_type_is_chrggrip(ctlr)) {
hid_err(hdev, "Failed charging grip handshake\n");
ret = -ETIMEDOUT;
goto err_mutex;
}
/* get controller calibration data, and parse it */
ret = joycon_request_calibration(ctlr);
if (ret) {
/*
* We can function with default calibration, but it may be
* inaccurate. Provide a warning, and continue on.
*/
hid_warn(hdev, "Analog stick positions may be inaccurate\n");
}
/* get IMU calibration data, and parse it */
ret = joycon_request_imu_calibration(ctlr);
if (ret) {
/*
* We can function with default calibration, but it may be
* inaccurate. Provide a warning, and continue on.
*/
hid_warn(hdev, "Unable to read IMU calibration data\n");
}
/* Set the reporting mode to 0x30, which is the full report mode */
ret = joycon_set_report_mode(ctlr);
if (ret) {
hid_err(hdev, "Failed to set report mode; ret=%d\n", ret);
goto err_mutex;
}
/* Enable rumble */
ret = joycon_enable_rumble(ctlr);
if (ret) {
hid_err(hdev, "Failed to enable rumble; ret=%d\n", ret);
goto err_mutex;
}
/* Enable the IMU */
ret = joycon_enable_imu(ctlr);
if (ret) {
hid_err(hdev, "Failed to enable the IMU; ret=%d\n", ret);
goto err_mutex;
}
ret = joycon_read_info(ctlr);
if (ret) {
hid_err(hdev, "Failed to retrieve controller info; ret=%d\n",
ret);
goto err_mutex;
}
mutex_unlock(&ctlr->output_mutex);
/* Initialize the leds */
ret = joycon_leds_create(ctlr);
if (ret) {
hid_err(hdev, "Failed to create leds; ret=%d\n", ret);
goto err_close;
}
/* Initialize the battery power supply */
ret = joycon_power_supply_create(ctlr);
if (ret) {
hid_err(hdev, "Failed to create power_supply; ret=%d\n", ret);
goto err_close;
}
ret = joycon_input_create(ctlr);
if (ret) {
hid_err(hdev, "Failed to create input device; ret=%d\n", ret);
goto err_close;
}
ctlr->ctlr_state = JOYCON_CTLR_STATE_READ;
hid_dbg(hdev, "probe - success\n");
return 0;
err_mutex:
mutex_unlock(&ctlr->output_mutex);
err_close:
hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
err_wq:
destroy_workqueue(ctlr->rumble_queue);
err:
hid_err(hdev, "probe - fail = %d\n", ret);
return ret;
}
static void nintendo_hid_remove(struct hid_device *hdev)
{
struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
unsigned long flags;
hid_dbg(hdev, "remove\n");
/* Prevent further attempts at sending subcommands. */
spin_lock_irqsave(&ctlr->lock, flags);
ctlr->ctlr_state = JOYCON_CTLR_STATE_REMOVED;
spin_unlock_irqrestore(&ctlr->lock, flags);
destroy_workqueue(ctlr->rumble_queue);
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id nintendo_hid_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_PROCON) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_PROCON) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_CHRGGRIP) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_JOYCONL) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_JOYCONR) },
{ }
};
MODULE_DEVICE_TABLE(hid, nintendo_hid_devices);
static struct hid_driver nintendo_hid_driver = {
.name = "nintendo",
.id_table = nintendo_hid_devices,
.probe = nintendo_hid_probe,
.remove = nintendo_hid_remove,
.raw_event = nintendo_hid_event,
};
module_hid_driver(nintendo_hid_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Daniel J. Ogorchock <[email protected]>");
MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers");
| linux-master | drivers/hid/hid-nintendo.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some belkin "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define BELKIN_HIDDEV 0x01
#define BELKIN_WKBD 0x02
#define belkin_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
!(quirks & BELKIN_WKBD))
return 0;
switch (usage->hid & HID_USAGE) {
case 0x03a: belkin_map_key_clear(KEY_SOUND); break;
case 0x03b: belkin_map_key_clear(KEY_CAMERA); break;
case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS); break;
default:
return 0;
}
return 1;
}
static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
int ret;
hid_set_drvdata(hdev, (void *)quirks);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
return 0;
err_free:
return ret;
}
static const struct hid_device_id belkin_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
.driver_data = BELKIN_HIDDEV },
{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
.driver_data = BELKIN_WKBD },
{ }
};
MODULE_DEVICE_TABLE(hid, belkin_devices);
static struct hid_driver belkin_driver = {
.name = "belkin",
.id_table = belkin_devices,
.input_mapping = belkin_input_mapping,
.probe = belkin_probe,
};
module_hid_driver(belkin_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-belkin.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Kova[+] driver for Linux
*
* Copyright (c) 2011 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Kova[+] is a bigger version of the Pyra with two more side buttons.
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-kovaplus.h"
static uint profile_numbers[5] = {0, 1, 2, 3, 4};
static uint kovaplus_convert_event_cpi(uint value)
{
return (value == 7 ? 4 : (value == 4 ? 3 : value));
}
static void kovaplus_profile_activated(struct kovaplus_device *kovaplus,
uint new_profile_index)
{
if (new_profile_index >= ARRAY_SIZE(kovaplus->profile_settings))
return;
kovaplus->actual_profile = new_profile_index;
kovaplus->actual_cpi = kovaplus->profile_settings[new_profile_index].cpi_startup_level;
kovaplus->actual_x_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_x;
kovaplus->actual_y_sensitivity = kovaplus->profile_settings[new_profile_index].sensitivity_y;
}
static int kovaplus_send_control(struct usb_device *usb_dev, uint value,
enum kovaplus_control_requests request)
{
int retval;
struct roccat_common2_control control;
if ((request == KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
request == KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
value > 4)
return -EINVAL;
control.command = ROCCAT_COMMON_COMMAND_CONTROL;
control.value = value;
control.request = request;
retval = roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
&control, sizeof(struct roccat_common2_control));
return retval;
}
static int kovaplus_select_profile(struct usb_device *usb_dev, uint number,
enum kovaplus_control_requests request)
{
return kovaplus_send_control(usb_dev, number, request);
}
static int kovaplus_get_profile_settings(struct usb_device *usb_dev,
struct kovaplus_profile_settings *buf, uint number)
{
int retval;
retval = kovaplus_select_profile(usb_dev, number,
KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
if (retval)
return retval;
return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_SETTINGS,
buf, KOVAPLUS_SIZE_PROFILE_SETTINGS);
}
static int kovaplus_get_profile_buttons(struct usb_device *usb_dev,
struct kovaplus_profile_buttons *buf, int number)
{
int retval;
retval = kovaplus_select_profile(usb_dev, number,
KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
if (retval)
return retval;
return roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_PROFILE_BUTTONS,
buf, KOVAPLUS_SIZE_PROFILE_BUTTONS);
}
/* retval is 0-4 on success, < 0 on error */
static int kovaplus_get_actual_profile(struct usb_device *usb_dev)
{
struct kovaplus_actual_profile buf;
int retval;
retval = roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_ACTUAL_PROFILE,
&buf, sizeof(struct kovaplus_actual_profile));
return retval ? retval : buf.actual_profile;
}
static int kovaplus_set_actual_profile(struct usb_device *usb_dev,
int new_profile)
{
struct kovaplus_actual_profile buf;
buf.command = KOVAPLUS_COMMAND_ACTUAL_PROFILE;
buf.size = sizeof(struct kovaplus_actual_profile);
buf.actual_profile = new_profile;
return roccat_common2_send_with_status(usb_dev,
KOVAPLUS_COMMAND_ACTUAL_PROFILE,
&buf, sizeof(struct kovaplus_actual_profile));
}
static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
char *buf, loff_t off, size_t count,
size_t real_size, uint command)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval;
if (off >= real_size)
return 0;
if (off != 0 || count != real_size)
return -EINVAL;
mutex_lock(&kovaplus->kovaplus_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&kovaplus->kovaplus_lock);
if (retval)
return retval;
return real_size;
}
static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
void const *buf, loff_t off, size_t count,
size_t real_size, uint command)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval;
if (off != 0 || count != real_size)
return -EINVAL;
mutex_lock(&kovaplus->kovaplus_lock);
retval = roccat_common2_send_with_status(usb_dev, command,
buf, real_size);
mutex_unlock(&kovaplus->kovaplus_lock);
if (retval)
return retval;
return real_size;
}
#define KOVAPLUS_SYSFS_W(thingy, THINGY) \
static ssize_t kovaplus_sysfs_write_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return kovaplus_sysfs_write(fp, kobj, buf, off, count, \
KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
}
#define KOVAPLUS_SYSFS_R(thingy, THINGY) \
static ssize_t kovaplus_sysfs_read_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return kovaplus_sysfs_read(fp, kobj, buf, off, count, \
KOVAPLUS_SIZE_ ## THINGY, KOVAPLUS_COMMAND_ ## THINGY); \
}
#define KOVAPLUS_SYSFS_RW(thingy, THINGY) \
KOVAPLUS_SYSFS_W(thingy, THINGY) \
KOVAPLUS_SYSFS_R(thingy, THINGY)
#define KOVAPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
KOVAPLUS_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = KOVAPLUS_SIZE_ ## THINGY, \
.read = kovaplus_sysfs_read_ ## thingy, \
.write = kovaplus_sysfs_write_ ## thingy \
}
#define KOVAPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
KOVAPLUS_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0220 }, \
.size = KOVAPLUS_SIZE_ ## THINGY, \
.write = kovaplus_sysfs_write_ ## thingy \
}
KOVAPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
KOVAPLUS_BIN_ATTRIBUTE_RW(info, INFO);
KOVAPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
KOVAPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
ssize_t retval;
retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
KOVAPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
if (retval)
return retval;
return kovaplus_sysfs_read(fp, kobj, buf, off, count,
KOVAPLUS_SIZE_PROFILE_SETTINGS,
KOVAPLUS_COMMAND_PROFILE_SETTINGS);
}
static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
ssize_t retval;
retval = kovaplus_select_profile(usb_dev, *(uint *)(attr->private),
KOVAPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
if (retval)
return retval;
return kovaplus_sysfs_read(fp, kobj, buf, off, count,
KOVAPLUS_SIZE_PROFILE_BUTTONS,
KOVAPLUS_COMMAND_PROFILE_BUTTONS);
}
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
.attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \
.read = kovaplus_sysfs_read_profilex_settings, \
.private = &profile_numbers[number-1], \
}; \
static struct bin_attribute bin_attr_profile##number##_buttons = { \
.attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
.size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \
.read = kovaplus_sysfs_read_profilex_buttons, \
.private = &profile_numbers[number-1], \
};
PROFILE_ATTR(1);
PROFILE_ATTR(2);
PROFILE_ATTR(3);
PROFILE_ATTR(4);
PROFILE_ATTR(5);
static ssize_t kovaplus_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kovaplus_device *kovaplus =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_profile);
}
static ssize_t kovaplus_sysfs_set_actual_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct kovaplus_device *kovaplus;
struct usb_device *usb_dev;
unsigned long profile;
int retval;
struct kovaplus_roccat_report roccat_report;
dev = dev->parent->parent;
kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
retval = kstrtoul(buf, 10, &profile);
if (retval)
return retval;
if (profile >= 5)
return -EINVAL;
mutex_lock(&kovaplus->kovaplus_lock);
retval = kovaplus_set_actual_profile(usb_dev, profile);
if (retval) {
mutex_unlock(&kovaplus->kovaplus_lock);
return retval;
}
kovaplus_profile_activated(kovaplus, profile);
roccat_report.type = KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1;
roccat_report.profile = profile + 1;
roccat_report.button = 0;
roccat_report.data1 = profile + 1;
roccat_report.data2 = 0;
roccat_report_event(kovaplus->chrdev_minor,
(uint8_t const *)&roccat_report);
mutex_unlock(&kovaplus->kovaplus_lock);
return size;
}
static DEVICE_ATTR(actual_profile, 0660,
kovaplus_sysfs_show_actual_profile,
kovaplus_sysfs_set_actual_profile);
static ssize_t kovaplus_sysfs_show_actual_cpi(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kovaplus_device *kovaplus =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_cpi);
}
static DEVICE_ATTR(actual_cpi, 0440, kovaplus_sysfs_show_actual_cpi, NULL);
static ssize_t kovaplus_sysfs_show_actual_sensitivity_x(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kovaplus_device *kovaplus =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_x_sensitivity);
}
static DEVICE_ATTR(actual_sensitivity_x, 0440,
kovaplus_sysfs_show_actual_sensitivity_x, NULL);
static ssize_t kovaplus_sysfs_show_actual_sensitivity_y(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kovaplus_device *kovaplus =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", kovaplus->actual_y_sensitivity);
}
static DEVICE_ATTR(actual_sensitivity_y, 0440,
kovaplus_sysfs_show_actual_sensitivity_y, NULL);
static ssize_t kovaplus_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct kovaplus_device *kovaplus;
struct usb_device *usb_dev;
struct kovaplus_info info;
dev = dev->parent->parent;
kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
mutex_lock(&kovaplus->kovaplus_lock);
roccat_common2_receive(usb_dev, KOVAPLUS_COMMAND_INFO,
&info, KOVAPLUS_SIZE_INFO);
mutex_unlock(&kovaplus->kovaplus_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
}
static DEVICE_ATTR(firmware_version, 0440,
kovaplus_sysfs_show_firmware_version, NULL);
static struct attribute *kovaplus_attrs[] = {
&dev_attr_actual_cpi.attr,
&dev_attr_firmware_version.attr,
&dev_attr_actual_profile.attr,
&dev_attr_actual_sensitivity_x.attr,
&dev_attr_actual_sensitivity_y.attr,
NULL,
};
static struct bin_attribute *kovaplus_bin_attributes[] = {
&bin_attr_control,
&bin_attr_info,
&bin_attr_profile_settings,
&bin_attr_profile_buttons,
&bin_attr_profile1_settings,
&bin_attr_profile2_settings,
&bin_attr_profile3_settings,
&bin_attr_profile4_settings,
&bin_attr_profile5_settings,
&bin_attr_profile1_buttons,
&bin_attr_profile2_buttons,
&bin_attr_profile3_buttons,
&bin_attr_profile4_buttons,
&bin_attr_profile5_buttons,
NULL,
};
static const struct attribute_group kovaplus_group = {
.attrs = kovaplus_attrs,
.bin_attrs = kovaplus_bin_attributes,
};
static const struct attribute_group *kovaplus_groups[] = {
&kovaplus_group,
NULL,
};
static const struct class kovaplus_class = {
.name = "kovaplus",
.dev_groups = kovaplus_groups,
};
static int kovaplus_init_kovaplus_device_struct(struct usb_device *usb_dev,
struct kovaplus_device *kovaplus)
{
int retval, i;
static uint wait = 70; /* device will freeze with just 60 */
mutex_init(&kovaplus->kovaplus_lock);
for (i = 0; i < 5; ++i) {
msleep(wait);
retval = kovaplus_get_profile_settings(usb_dev,
&kovaplus->profile_settings[i], i);
if (retval)
return retval;
msleep(wait);
retval = kovaplus_get_profile_buttons(usb_dev,
&kovaplus->profile_buttons[i], i);
if (retval)
return retval;
}
msleep(wait);
retval = kovaplus_get_actual_profile(usb_dev);
if (retval < 0)
return retval;
kovaplus_profile_activated(kovaplus, retval);
return 0;
}
static int kovaplus_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct kovaplus_device *kovaplus;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
kovaplus = kzalloc(sizeof(*kovaplus), GFP_KERNEL);
if (!kovaplus) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, kovaplus);
retval = kovaplus_init_kovaplus_device_struct(usb_dev, kovaplus);
if (retval) {
hid_err(hdev, "couldn't init struct kovaplus_device\n");
goto exit_free;
}
retval = roccat_connect(&kovaplus_class, hdev,
sizeof(struct kovaplus_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
kovaplus->chrdev_minor = retval;
kovaplus->roccat_claimed = 1;
}
} else {
hid_set_drvdata(hdev, NULL);
}
return 0;
exit_free:
kfree(kovaplus);
return retval;
}
static void kovaplus_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct kovaplus_device *kovaplus;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
kovaplus = hid_get_drvdata(hdev);
if (kovaplus->roccat_claimed)
roccat_disconnect(kovaplus->chrdev_minor);
kfree(kovaplus);
}
}
static int kovaplus_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = kovaplus_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void kovaplus_remove(struct hid_device *hdev)
{
kovaplus_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
u8 const *data)
{
struct kovaplus_mouse_report_button const *button_report;
if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
return;
button_report = (struct kovaplus_mouse_report_button const *)data;
switch (button_report->type) {
case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_1:
kovaplus_profile_activated(kovaplus, button_report->data1 - 1);
break;
case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
break;
case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
kovaplus->actual_x_sensitivity = button_report->data1;
kovaplus->actual_y_sensitivity = button_report->data2;
break;
default:
break;
}
}
static void kovaplus_report_to_chrdev(struct kovaplus_device const *kovaplus,
u8 const *data)
{
struct kovaplus_roccat_report roccat_report;
struct kovaplus_mouse_report_button const *button_report;
if (data[0] != KOVAPLUS_MOUSE_REPORT_NUMBER_BUTTON)
return;
button_report = (struct kovaplus_mouse_report_button const *)data;
if (button_report->type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE_2)
return;
roccat_report.type = button_report->type;
roccat_report.profile = kovaplus->actual_profile + 1;
if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_MACRO ||
roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SHORTCUT ||
roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER)
roccat_report.button = button_report->data1;
else
roccat_report.button = 0;
if (roccat_report.type == KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI)
roccat_report.data1 = kovaplus_convert_event_cpi(button_report->data1);
else
roccat_report.data1 = button_report->data1;
roccat_report.data2 = button_report->data2;
roccat_report_event(kovaplus->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int kovaplus_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct kovaplus_device *kovaplus = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (kovaplus == NULL)
return 0;
kovaplus_keep_values_up_to_date(kovaplus, data);
if (kovaplus->roccat_claimed)
kovaplus_report_to_chrdev(kovaplus, data);
return 0;
}
static const struct hid_device_id kovaplus_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
{ }
};
MODULE_DEVICE_TABLE(hid, kovaplus_devices);
static struct hid_driver kovaplus_driver = {
.name = "kovaplus",
.id_table = kovaplus_devices,
.probe = kovaplus_probe,
.remove = kovaplus_remove,
.raw_event = kovaplus_raw_event
};
static int __init kovaplus_init(void)
{
int retval;
retval = class_register(&kovaplus_class);
if (retval)
return retval;
retval = hid_register_driver(&kovaplus_driver);
if (retval)
class_unregister(&kovaplus_class);
return retval;
}
static void __exit kovaplus_exit(void)
{
hid_unregister_driver(&kovaplus_driver);
class_unregister(&kovaplus_class);
}
module_init(kovaplus_init);
module_exit(kovaplus_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Kova[+] driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-kovaplus.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID Driver for ELAN Touchpad
*
* Currently only supports touchpad found on HP Pavilion X2 10
*
* Copyright (c) 2016 Alexandrov Stanislav <[email protected]>
*/
#include <linux/hid.h>
#include <linux/input/mt.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define ELAN_MT_I2C 0x5d
#define ELAN_SINGLE_FINGER 0x81
#define ELAN_MT_FIRST_FINGER 0x82
#define ELAN_MT_SECOND_FINGER 0x83
#define ELAN_INPUT_REPORT_SIZE 8
#define ELAN_I2C_REPORT_SIZE 32
#define ELAN_FINGER_DATA_LEN 5
#define ELAN_MAX_FINGERS 5
#define ELAN_MAX_PRESSURE 255
#define ELAN_TP_USB_INTF 1
#define ELAN_FEATURE_REPORT 0x0d
#define ELAN_FEATURE_SIZE 5
#define ELAN_PARAM_MAX_X 6
#define ELAN_PARAM_MAX_Y 7
#define ELAN_PARAM_RES 8
#define ELAN_MUTE_LED_REPORT 0xBC
#define ELAN_LED_REPORT_SIZE 8
#define ELAN_HAS_LED BIT(0)
struct elan_drvdata {
struct input_dev *input;
u8 prev_report[ELAN_INPUT_REPORT_SIZE];
struct led_classdev mute_led;
u8 mute_led_state;
u16 max_x;
u16 max_y;
u16 res_x;
u16 res_y;
};
static int is_not_elan_touchpad(struct hid_device *hdev)
{
if (hid_is_usb(hdev)) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
return (intf->altsetting->desc.bInterfaceNumber !=
ELAN_TP_USB_INTF);
}
return 0;
}
static int elan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if (is_not_elan_touchpad(hdev))
return 0;
if (field->report->id == ELAN_SINGLE_FINGER ||
field->report->id == ELAN_MT_FIRST_FINGER ||
field->report->id == ELAN_MT_SECOND_FINGER ||
field->report->id == ELAN_MT_I2C)
return -1;
return 0;
}
static int elan_get_device_param(struct hid_device *hdev,
unsigned char *dmabuf, unsigned char param)
{
int ret;
dmabuf[0] = ELAN_FEATURE_REPORT;
dmabuf[1] = 0x05;
dmabuf[2] = 0x03;
dmabuf[3] = param;
dmabuf[4] = 0x01;
ret = hid_hw_raw_request(hdev, ELAN_FEATURE_REPORT, dmabuf,
ELAN_FEATURE_SIZE, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret != ELAN_FEATURE_SIZE) {
hid_err(hdev, "Set report error for parm %d: %d\n", param, ret);
return ret;
}
ret = hid_hw_raw_request(hdev, ELAN_FEATURE_REPORT, dmabuf,
ELAN_FEATURE_SIZE, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret != ELAN_FEATURE_SIZE) {
hid_err(hdev, "Get report error for parm %d: %d\n", param, ret);
return ret;
}
return 0;
}
static unsigned int elan_convert_res(char val)
{
/*
* (value from firmware) * 10 + 790 = dpi
* dpi * 10 / 254 = dots/mm
*/
return (val * 10 + 790) * 10 / 254;
}
static int elan_get_device_params(struct hid_device *hdev)
{
struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
unsigned char *dmabuf;
int ret;
dmabuf = kmalloc(ELAN_FEATURE_SIZE, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
ret = elan_get_device_param(hdev, dmabuf, ELAN_PARAM_MAX_X);
if (ret)
goto err;
drvdata->max_x = (dmabuf[4] << 8) | dmabuf[3];
ret = elan_get_device_param(hdev, dmabuf, ELAN_PARAM_MAX_Y);
if (ret)
goto err;
drvdata->max_y = (dmabuf[4] << 8) | dmabuf[3];
ret = elan_get_device_param(hdev, dmabuf, ELAN_PARAM_RES);
if (ret)
goto err;
drvdata->res_x = elan_convert_res(dmabuf[3]);
drvdata->res_y = elan_convert_res(dmabuf[4]);
err:
kfree(dmabuf);
return ret;
}
static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
int ret;
struct input_dev *input;
struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
if (is_not_elan_touchpad(hdev))
return 0;
ret = elan_get_device_params(hdev);
if (ret)
return ret;
input = devm_input_allocate_device(&hdev->dev);
if (!input)
return -ENOMEM;
input->name = "Elan Touchpad";
input->phys = hdev->phys;
input->uniq = hdev->uniq;
input->id.bustype = hdev->bus;
input->id.vendor = hdev->vendor;
input->id.product = hdev->product;
input->id.version = hdev->version;
input->dev.parent = &hdev->dev;
input_set_abs_params(input, ABS_MT_POSITION_X, 0, drvdata->max_x,
0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, drvdata->max_y,
0, 0);
input_set_abs_params(input, ABS_MT_PRESSURE, 0, ELAN_MAX_PRESSURE,
0, 0);
__set_bit(BTN_LEFT, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
return ret;
}
input_abs_set_res(input, ABS_X, drvdata->res_x);
input_abs_set_res(input, ABS_Y, drvdata->res_y);
ret = input_register_device(input);
if (ret) {
hid_err(hdev, "Failed to register elan input device: %d\n",
ret);
input_mt_destroy_slots(input);
return ret;
}
drvdata->input = input;
return 0;
}
static void elan_report_mt_slot(struct elan_drvdata *drvdata, u8 *data,
unsigned int slot_num)
{
struct input_dev *input = drvdata->input;
int x, y, p;
bool active = !!data;
input_mt_slot(input, slot_num);
input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
if (active) {
x = ((data[0] & 0xF0) << 4) | data[1];
y = drvdata->max_y -
(((data[0] & 0x07) << 8) | data[2]);
p = data[4];
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
input_report_abs(input, ABS_MT_PRESSURE, p);
}
}
static void elan_usb_report_input(struct elan_drvdata *drvdata, u8 *data)
{
int i;
struct input_dev *input = drvdata->input;
/*
* There is 3 types of reports: for single touch,
* for multitouch - first finger and for multitouch - second finger
*
* packet structure for ELAN_SINGLE_FINGER and ELAN_MT_FIRST_FINGER:
*
* byte 1: 1 0 0 0 0 0 0 1 // 0x81 or 0x82
* byte 2: 0 0 0 0 0 0 0 0 // looks like unused
* byte 3: f5 f4 f3 f2 f1 0 0 L
* byte 4: x12 x11 x10 x9 0? y11 y10 y9
* byte 5: x8 x7 x6 x5 x4 x3 x2 x1
* byte 6: y8 y7 y6 y5 y4 y3 y2 y1
* byte 7: sy4 sy3 sy2 sy1 sx4 sx3 sx2 sx1
* byte 8: p8 p7 p6 p5 p4 p3 p2 p1
*
* packet structure for ELAN_MT_SECOND_FINGER:
*
* byte 1: 1 0 0 0 0 0 1 1 // 0x83
* byte 2: x12 x11 x10 x9 0 y11 y10 y9
* byte 3: x8 x7 x6 x5 x4 x3 x2 x1
* byte 4: y8 y7 y6 y5 y4 y3 y2 y1
* byte 5: sy4 sy3 sy2 sy1 sx4 sx3 sx2 sx1
* byte 6: p8 p7 p6 p5 p4 p3 p2 p1
* byte 7: 0 0 0 0 0 0 0 0
* byte 8: 0 0 0 0 0 0 0 0
*
* f5-f1: finger touch bits
* L: clickpad button
* sy / sx: finger width / height expressed in traces, the total number
* of traces can be queried by doing a HID_REQ_SET_REPORT
* { 0x0d, 0x05, 0x03, 0x05, 0x01 } followed by a GET, in the
* returned buf, buf[3]=no-x-traces, buf[4]=no-y-traces.
* p: pressure
*/
if (data[0] == ELAN_SINGLE_FINGER) {
for (i = 0; i < ELAN_MAX_FINGERS; i++) {
if (data[2] & BIT(i + 3))
elan_report_mt_slot(drvdata, data + 3, i);
else
elan_report_mt_slot(drvdata, NULL, i);
}
input_report_key(input, BTN_LEFT, data[2] & 0x01);
}
/*
* When touched with two fingers Elan touchpad will emit two HID reports
* first is ELAN_MT_FIRST_FINGER and second is ELAN_MT_SECOND_FINGER
* we will save ELAN_MT_FIRST_FINGER report and wait for
* ELAN_MT_SECOND_FINGER to finish multitouch
*/
if (data[0] == ELAN_MT_FIRST_FINGER) {
memcpy(drvdata->prev_report, data,
sizeof(drvdata->prev_report));
return;
}
if (data[0] == ELAN_MT_SECOND_FINGER) {
int first = 0;
u8 *prev_report = drvdata->prev_report;
if (prev_report[0] != ELAN_MT_FIRST_FINGER)
return;
for (i = 0; i < ELAN_MAX_FINGERS; i++) {
if (prev_report[2] & BIT(i + 3)) {
if (!first) {
first = 1;
elan_report_mt_slot(drvdata, prev_report + 3, i);
} else {
elan_report_mt_slot(drvdata, data + 1, i);
}
} else {
elan_report_mt_slot(drvdata, NULL, i);
}
}
input_report_key(input, BTN_LEFT, prev_report[2] & 0x01);
}
input_mt_sync_frame(input);
input_sync(input);
}
static void elan_i2c_report_input(struct elan_drvdata *drvdata, u8 *data)
{
struct input_dev *input = drvdata->input;
u8 *finger_data;
int i;
/*
* Elan MT touchpads in i2c mode send finger data in the same format
* as in USB mode, but then with all fingers in a single packet.
*
* packet structure for ELAN_MT_I2C:
*
* byte 1: 1 0 0 1 1 1 0 1 // 0x5d
* byte 2: f5 f4 f3 f2 f1 0 0 L
* byte 3: x12 x11 x10 x9 0? y11 y10 y9
* byte 4: x8 x7 x6 x5 x4 x3 x2 x1
* byte 5: y8 y7 y6 y5 y4 y3 y2 y1
* byte 6: sy4 sy3 sy2 sy1 sx4 sx3 sx2 sx1
* byte 7: p8 p7 p6 p5 p4 p3 p2 p1
* byte 8-12: Same as byte 3-7 for second finger down
* byte 13-17: Same as byte 3-7 for third finger down
* byte 18-22: Same as byte 3-7 for fourth finger down
* byte 23-27: Same as byte 3-7 for fifth finger down
*/
finger_data = data + 2;
for (i = 0; i < ELAN_MAX_FINGERS; i++) {
if (data[1] & BIT(i + 3)) {
elan_report_mt_slot(drvdata, finger_data, i);
finger_data += ELAN_FINGER_DATA_LEN;
} else {
elan_report_mt_slot(drvdata, NULL, i);
}
}
input_report_key(input, BTN_LEFT, data[1] & 0x01);
input_mt_sync_frame(input);
input_sync(input);
}
static int elan_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
if (is_not_elan_touchpad(hdev))
return 0;
if (data[0] == ELAN_SINGLE_FINGER ||
data[0] == ELAN_MT_FIRST_FINGER ||
data[0] == ELAN_MT_SECOND_FINGER) {
if (size == ELAN_INPUT_REPORT_SIZE) {
elan_usb_report_input(drvdata, data);
return 1;
}
}
if (data[0] == ELAN_MT_I2C && size == ELAN_I2C_REPORT_SIZE) {
elan_i2c_report_input(drvdata, data);
return 1;
}
return 0;
}
static int elan_start_multitouch(struct hid_device *hdev)
{
int ret;
/*
* This byte sequence will enable multitouch mode and disable
* mouse emulation
*/
static const unsigned char buf[] = { 0x0D, 0x00, 0x03, 0x21, 0x00 };
unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(dmabuf);
if (ret != sizeof(buf)) {
hid_err(hdev, "Failed to start multitouch: %d\n", ret);
return ret;
}
return 0;
}
static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
enum led_brightness value)
{
int ret;
u8 led_state;
struct device *dev = led_cdev->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
unsigned char *dmabuf = kzalloc(ELAN_LED_REPORT_SIZE, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
led_state = !!value;
dmabuf[0] = ELAN_MUTE_LED_REPORT;
dmabuf[1] = 0x02;
dmabuf[2] = led_state;
ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, ELAN_LED_REPORT_SIZE,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(dmabuf);
if (ret != ELAN_LED_REPORT_SIZE) {
if (ret != -ENODEV)
hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
return ret < 0 ? ret : -EIO;
}
drvdata->mute_led_state = led_state;
return 0;
}
static int elan_init_mute_led(struct hid_device *hdev)
{
struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
struct led_classdev *mute_led = &drvdata->mute_led;
mute_led->name = "elan:red:mute";
mute_led->default_trigger = "audio-mute";
mute_led->brightness_set_blocking = elan_mute_led_set_brigtness;
mute_led->max_brightness = LED_ON;
mute_led->flags = LED_HW_PLUGGABLE;
mute_led->dev = &hdev->dev;
return devm_led_classdev_register(&hdev->dev, mute_led);
}
static int elan_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct elan_drvdata *drvdata;
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
hid_set_drvdata(hdev, drvdata);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Hid Parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Hid hw start failed\n");
return ret;
}
if (is_not_elan_touchpad(hdev))
return 0;
if (!drvdata->input) {
hid_err(hdev, "Input device is not registered\n");
ret = -ENAVAIL;
goto err;
}
ret = elan_start_multitouch(hdev);
if (ret)
goto err;
if (id->driver_data & ELAN_HAS_LED) {
ret = elan_init_mute_led(hdev);
if (ret)
goto err;
}
return 0;
err:
hid_hw_stop(hdev);
return ret;
}
static const struct hid_device_id elan_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2),
.driver_data = ELAN_HAS_LED },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER),
.driver_data = ELAN_HAS_LED },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_TOSHIBA_CLICK_L9W) },
{ }
};
MODULE_DEVICE_TABLE(hid, elan_devices);
static struct hid_driver elan_driver = {
.name = "elan",
.id_table = elan_devices,
.input_mapping = elan_input_mapping,
.input_configured = elan_input_configured,
.raw_event = elan_raw_event,
.probe = elan_probe,
};
module_hid_driver(elan_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alexandrov Stanislav");
MODULE_DESCRIPTION("Driver for HID ELAN Touchpads");
| linux-master | drivers/hid/hid-elan.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for TiVo Slide Bluetooth remote
*
* Copyright (c) 2011 Jarod Wilson <[email protected]>
* based on the hid-topseed driver, which is in turn, based on hid-cherry...
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define HID_UP_TIVOVENDOR 0xffff0000
#define tivo_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int tivo_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_TIVOVENDOR:
switch (usage->hid & HID_USAGE) {
/* TiVo button */
case 0x3d: tivo_map_key_clear(KEY_MEDIA); break;
/* Live TV */
case 0x3e: tivo_map_key_clear(KEY_TV); break;
/* Red thumbs down */
case 0x41: tivo_map_key_clear(KEY_KPMINUS); break;
/* Green thumbs up */
case 0x42: tivo_map_key_clear(KEY_KPPLUS); break;
default:
return 0;
}
break;
case HID_UP_CONSUMER:
switch (usage->hid & HID_USAGE) {
/* Enter/Last (default mapping: KEY_LAST) */
case 0x083: tivo_map_key_clear(KEY_ENTER); break;
/* Info (default mapping: KEY_PROPS) */
case 0x209: tivo_map_key_clear(KEY_INFO); break;
default:
return 0;
}
break;
default:
return 0;
}
/* This means we found a matching mapping here, else, look in the
* standard hid mappings in hid-input.c */
return 1;
}
static const struct hid_device_id tivo_devices[] = {
/* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
{ }
};
MODULE_DEVICE_TABLE(hid, tivo_devices);
static struct hid_driver tivo_driver = {
.name = "tivo_slide",
.id_table = tivo_devices,
.input_mapping = tivo_input_mapping,
};
module_hid_driver(tivo_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jarod Wilson <[email protected]>");
| linux-master | drivers/hid/hid-tivo.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some petalynx "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* Petalynx Maxter Remote has maximum for consumer page set too low */
static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");
rdesc[60] = 0xfa;
rdesc[40] = 0xfa;
}
return rdesc;
}
#define pl_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {
switch (usage->hid & HID_USAGE) {
case 0x05a: pl_map_key_clear(KEY_TEXT); break;
case 0x05b: pl_map_key_clear(KEY_RED); break;
case 0x05c: pl_map_key_clear(KEY_GREEN); break;
case 0x05d: pl_map_key_clear(KEY_YELLOW); break;
case 0x05e: pl_map_key_clear(KEY_BLUE); break;
default:
return 0;
}
return 1;
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
switch (usage->hid & HID_USAGE) {
case 0x0f6: pl_map_key_clear(KEY_NEXT); break;
case 0x0fa: pl_map_key_clear(KEY_BACK); break;
default:
return 0;
}
return 1;
}
return 0;
}
static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hdev->quirks |= HID_QUIRK_NOGET;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
return 0;
err_free:
return ret;
}
static const struct hid_device_id pl_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
{ }
};
MODULE_DEVICE_TABLE(hid, pl_devices);
static struct hid_driver pl_driver = {
.name = "petalynx",
.id_table = pl_devices,
.report_fixup = pl_report_fixup,
.input_mapping = pl_input_mapping,
.probe = pl_probe,
};
module_hid_driver(pl_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-petalynx.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Kensigton Slimblade Trackball
*
* Copyright (c) 2009 Jiri Kosina
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define ks_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
static int ks_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x01: ks_map_key(BTN_MIDDLE); break;
case 0x02: ks_map_key(BTN_SIDE); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id ks_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
{ }
};
MODULE_DEVICE_TABLE(hid, ks_devices);
static struct hid_driver ks_driver = {
.name = "kensington",
.id_table = ks_devices,
.input_mapping = ks_input_mapping,
};
module_hid_driver(ks_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-kensington.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for Cougar 500k Gaming Keyboard
*
* Copyright (c) 2018 Daniel M. Lambea <[email protected]>
*/
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/printk.h>
#include "hid-ids.h"
MODULE_AUTHOR("Daniel M. Lambea <[email protected]>");
MODULE_DESCRIPTION("Cougar 500k Gaming Keyboard");
MODULE_LICENSE("GPL");
MODULE_INFO(key_mappings, "G1-G6 are mapped to F13-F18");
static bool g6_is_space = true;
MODULE_PARM_DESC(g6_is_space,
"If true, G6 programmable key sends SPACE instead of F18 (default=true)");
#define COUGAR_VENDOR_USAGE 0xff00ff00
#define COUGAR_FIELD_CODE 1
#define COUGAR_FIELD_ACTION 2
#define COUGAR_KEY_G1 0x83
#define COUGAR_KEY_G2 0x84
#define COUGAR_KEY_G3 0x85
#define COUGAR_KEY_G4 0x86
#define COUGAR_KEY_G5 0x87
#define COUGAR_KEY_G6 0x78
#define COUGAR_KEY_FN 0x0d
#define COUGAR_KEY_MR 0x6f
#define COUGAR_KEY_M1 0x80
#define COUGAR_KEY_M2 0x81
#define COUGAR_KEY_M3 0x82
#define COUGAR_KEY_LEDS 0x67
#define COUGAR_KEY_LOCK 0x6e
/* Default key mappings. The special key COUGAR_KEY_G6 is defined first
* because it is more frequent to use the spacebar rather than any other
* special keys. Depending on the value of the parameter 'g6_is_space',
* the mapping will be updated in the probe function.
*/
static unsigned char cougar_mapping[][2] = {
{ COUGAR_KEY_G6, KEY_SPACE },
{ COUGAR_KEY_G1, KEY_F13 },
{ COUGAR_KEY_G2, KEY_F14 },
{ COUGAR_KEY_G3, KEY_F15 },
{ COUGAR_KEY_G4, KEY_F16 },
{ COUGAR_KEY_G5, KEY_F17 },
{ COUGAR_KEY_LOCK, KEY_SCREENLOCK },
/* The following keys are handled by the hardware itself, so no special
* treatment is required:
{ COUGAR_KEY_FN, KEY_RESERVED },
{ COUGAR_KEY_MR, KEY_RESERVED },
{ COUGAR_KEY_M1, KEY_RESERVED },
{ COUGAR_KEY_M2, KEY_RESERVED },
{ COUGAR_KEY_M3, KEY_RESERVED },
{ COUGAR_KEY_LEDS, KEY_RESERVED },
*/
{ 0, 0 },
};
struct cougar_shared {
struct list_head list;
struct kref kref;
bool enabled;
struct hid_device *dev;
struct input_dev *input;
};
struct cougar {
bool special_intf;
struct cougar_shared *shared;
};
static LIST_HEAD(cougar_udev_list);
static DEFINE_MUTEX(cougar_udev_list_lock);
/**
* cougar_fix_g6_mapping - configure the mapping for key G6/Spacebar
*/
static void cougar_fix_g6_mapping(void)
{
int i;
for (i = 0; cougar_mapping[i][0]; i++) {
if (cougar_mapping[i][0] == COUGAR_KEY_G6) {
cougar_mapping[i][1] =
g6_is_space ? KEY_SPACE : KEY_F18;
pr_info("cougar: G6 mapped to %s\n",
g6_is_space ? "space" : "F18");
return;
}
}
pr_warn("cougar: no mappings defined for G6/spacebar");
}
/*
* Constant-friendly rdesc fixup for mouse interface
*/
static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
(rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
hid_info(hdev,
"usage count exceeds max: fixing up report descriptor\n");
rdesc[115] = ((HID_MAX_USAGES-1) & 0xff);
rdesc[116] = ((HID_MAX_USAGES-1) >> 8);
}
return rdesc;
}
static struct cougar_shared *cougar_get_shared_data(struct hid_device *hdev)
{
struct cougar_shared *shared;
/* Try to find an already-probed interface from the same device */
list_for_each_entry(shared, &cougar_udev_list, list) {
if (hid_compare_device_paths(hdev, shared->dev, '/')) {
kref_get(&shared->kref);
return shared;
}
}
return NULL;
}
static void cougar_release_shared_data(struct kref *kref)
{
struct cougar_shared *shared = container_of(kref,
struct cougar_shared, kref);
mutex_lock(&cougar_udev_list_lock);
list_del(&shared->list);
mutex_unlock(&cougar_udev_list_lock);
kfree(shared);
}
static void cougar_remove_shared_data(void *resource)
{
struct cougar *cougar = resource;
if (cougar->shared) {
kref_put(&cougar->shared->kref, cougar_release_shared_data);
cougar->shared = NULL;
}
}
/*
* Bind the device group's shared data to this cougar struct.
* If no shared data exists for this group, create and initialize it.
*/
static int cougar_bind_shared_data(struct hid_device *hdev,
struct cougar *cougar)
{
struct cougar_shared *shared;
int error = 0;
mutex_lock(&cougar_udev_list_lock);
shared = cougar_get_shared_data(hdev);
if (!shared) {
shared = kzalloc(sizeof(*shared), GFP_KERNEL);
if (!shared) {
error = -ENOMEM;
goto out;
}
kref_init(&shared->kref);
shared->dev = hdev;
list_add_tail(&shared->list, &cougar_udev_list);
}
cougar->shared = shared;
error = devm_add_action_or_reset(&hdev->dev, cougar_remove_shared_data, cougar);
if (error) {
mutex_unlock(&cougar_udev_list_lock);
return error;
}
out:
mutex_unlock(&cougar_udev_list_lock);
return error;
}
static int cougar_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct cougar *cougar;
struct hid_input *next, *hidinput = NULL;
unsigned int connect_mask;
int error;
cougar = devm_kzalloc(&hdev->dev, sizeof(*cougar), GFP_KERNEL);
if (!cougar)
return -ENOMEM;
hid_set_drvdata(hdev, cougar);
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
return error;
}
if (hdev->collection->usage == COUGAR_VENDOR_USAGE) {
cougar->special_intf = true;
connect_mask = HID_CONNECT_HIDRAW;
} else
connect_mask = HID_CONNECT_DEFAULT;
error = hid_hw_start(hdev, connect_mask);
if (error) {
hid_err(hdev, "hw start failed\n");
return error;
}
error = cougar_bind_shared_data(hdev, cougar);
if (error)
goto fail_stop_and_cleanup;
/* The custom vendor interface will use the hid_input registered
* for the keyboard interface, in order to send translated key codes
* to it.
*/
if (hdev->collection->usage == HID_GD_KEYBOARD) {
list_for_each_entry_safe(hidinput, next, &hdev->inputs, list) {
if (hidinput->registered && hidinput->input != NULL) {
cougar->shared->input = hidinput->input;
cougar->shared->enabled = true;
break;
}
}
} else if (hdev->collection->usage == COUGAR_VENDOR_USAGE) {
/* Preinit the mapping table */
cougar_fix_g6_mapping();
error = hid_hw_open(hdev);
if (error)
goto fail_stop_and_cleanup;
}
return 0;
fail_stop_and_cleanup:
hid_hw_stop(hdev);
return error;
}
/*
* Convert events from vendor intf to input key events
*/
static int cougar_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct cougar *cougar;
struct cougar_shared *shared;
unsigned char code, action;
int i;
cougar = hid_get_drvdata(hdev);
shared = cougar->shared;
if (!cougar->special_intf || !shared)
return 0;
if (!shared->enabled || !shared->input)
return -EPERM;
code = data[COUGAR_FIELD_CODE];
action = data[COUGAR_FIELD_ACTION];
for (i = 0; cougar_mapping[i][0]; i++) {
if (code == cougar_mapping[i][0]) {
input_event(shared->input, EV_KEY,
cougar_mapping[i][1], action);
input_sync(shared->input);
return -EPERM;
}
}
/* Avoid warnings on the same unmapped key twice */
if (action != 0)
hid_warn(hdev, "unmapped special key code %0x: ignoring\n", code);
return -EPERM;
}
static void cougar_remove(struct hid_device *hdev)
{
struct cougar *cougar = hid_get_drvdata(hdev);
if (cougar) {
/* Stop the vendor intf to process more events */
if (cougar->shared)
cougar->shared->enabled = false;
if (cougar->special_intf)
hid_hw_close(hdev);
}
hid_hw_stop(hdev);
}
static int cougar_param_set_g6_is_space(const char *val,
const struct kernel_param *kp)
{
int ret;
ret = param_set_bool(val, kp);
if (ret)
return ret;
cougar_fix_g6_mapping();
return 0;
}
static const struct kernel_param_ops cougar_g6_is_space_ops = {
.set = cougar_param_set_g6_is_space,
.get = param_get_bool,
};
module_param_cb(g6_is_space, &cougar_g6_is_space_ops, &g6_is_space, 0644);
static const struct hid_device_id cougar_id_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
USB_DEVICE_ID_COUGAR_500K_GAMING_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
USB_DEVICE_ID_COUGAR_700K_GAMING_KEYBOARD) },
{}
};
MODULE_DEVICE_TABLE(hid, cougar_id_table);
static struct hid_driver cougar_driver = {
.name = "cougar",
.id_table = cougar_id_table,
.report_fixup = cougar_report_fixup,
.probe = cougar_probe,
.remove = cougar_remove,
.raw_event = cougar_raw_event,
};
module_hid_driver(cougar_driver);
| linux-master | drivers/hid/hid-cougar.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for UC-Logic devices not fully compliant with HID standard
*
* Copyright (c) 2022 José Expósito <[email protected]>
*/
#include <kunit/test.h>
#include "./hid-uclogic-rdesc.h"
struct uclogic_template_case {
const char *name;
const __u8 *template;
size_t template_size;
const s32 *param_list;
size_t param_num;
const __u8 *expected;
};
static const s32 params_pen_all[UCLOGIC_RDESC_PH_ID_NUM] = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xAA,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0xBB,
[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0xCC,
[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0xDD,
[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0xEE,
};
static const s32 params_pen_some[] = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xAA,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0xBB,
};
static const s32 params_frame_all[UCLOGIC_RDESC_PH_ID_NUM] = {
[UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0xFF,
};
static const __u8 template_empty[] = { };
static const __u8 template_small[] = { 0x00 };
static const __u8 template_no_ph[] = { 0xAA, 0xFE, 0xAA, 0xED, 0x1D };
static const __u8 template_pen_ph_end[] = {
0xAA, 0xBB, UCLOGIC_RDESC_PEN_PH_HEAD
};
static const __u8 template_btn_ph_end[] = {
0xAA, 0xBB, UCLOGIC_RDESC_FRAME_PH_BTN_HEAD
};
static const __u8 template_pen_all_params[] = {
UCLOGIC_RDESC_PEN_PH(X_LM),
0x47, UCLOGIC_RDESC_PEN_PH(X_PM),
0x27, UCLOGIC_RDESC_PEN_PH(Y_LM),
UCLOGIC_RDESC_PEN_PH(Y_PM),
0x00, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM),
};
static const __u8 expected_pen_all_params[] = {
0xAA, 0x00, 0x00, 0x00,
0x47, 0xBB, 0x00, 0x00, 0x00,
0x27, 0xCC, 0x00, 0x00, 0x00,
0xDD, 0x00, 0x00, 0x00,
0x00, 0xEE, 0x00, 0x00, 0x00,
};
static const __u8 template_frame_all_params[] = {
0x01, 0x02,
UCLOGIC_RDESC_FRAME_PH_BTN,
0x99,
};
static const __u8 expected_frame_all_params[] = {
0x01, 0x02,
0x2A, 0xFF, 0x00,
0x99,
};
static const __u8 template_pen_some_params[] = {
0x01, 0x02,
UCLOGIC_RDESC_PEN_PH(X_LM),
0x03, UCLOGIC_RDESC_PEN_PH(X_PM),
0x04, 0x05,
};
static const __u8 expected_pen_some_params[] = {
0x01, 0x02,
0xAA, 0x00, 0x00, 0x00,
0x03, 0xBB, 0x00, 0x00, 0x00,
0x04, 0x05,
};
static const __u8 template_params_none[] = {
0x27, UCLOGIC_RDESC_PEN_PH(Y_LM),
UCLOGIC_RDESC_PEN_PH(Y_PM),
0x00, UCLOGIC_RDESC_PEN_PH(PRESSURE_LM),
};
static struct uclogic_template_case uclogic_template_cases[] = {
{
.name = "empty_template",
.template = template_empty,
.template_size = sizeof(template_empty),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = template_empty,
},
{
.name = "template_smaller_than_the_placeholder",
.template = template_small,
.template_size = sizeof(template_small),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = template_small,
},
{
.name = "no_placeholder",
.template = template_no_ph,
.template_size = sizeof(template_no_ph),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = template_no_ph,
},
{
.name = "pen_placeholder_at_the_end_without_id",
.template = template_pen_ph_end,
.template_size = sizeof(template_pen_ph_end),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = template_pen_ph_end,
},
{
.name = "frame_button_placeholder_at_the_end_without_id",
.template = template_btn_ph_end,
.template_size = sizeof(template_btn_ph_end),
.param_list = params_frame_all,
.param_num = ARRAY_SIZE(params_frame_all),
.expected = template_btn_ph_end,
},
{
.name = "all_params_present_in_the_pen_template",
.template = template_pen_all_params,
.template_size = sizeof(template_pen_all_params),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = expected_pen_all_params,
},
{
.name = "all_params_present_in_the_frame_template",
.template = template_frame_all_params,
.template_size = sizeof(template_frame_all_params),
.param_list = params_frame_all,
.param_num = ARRAY_SIZE(params_frame_all),
.expected = expected_frame_all_params,
},
{
.name = "some_params_present_in_the_pen_template_with_complete_param_list",
.template = template_pen_some_params,
.template_size = sizeof(template_pen_some_params),
.param_list = params_pen_all,
.param_num = ARRAY_SIZE(params_pen_all),
.expected = expected_pen_some_params,
},
{
.name = "some_params_present_in_the_pen_template_with_incomplete_param_list",
.template = template_pen_some_params,
.template_size = sizeof(template_pen_some_params),
.param_list = params_pen_some,
.param_num = ARRAY_SIZE(params_pen_some),
.expected = expected_pen_some_params,
},
{
.name = "no_params_present_in_the_template",
.template = template_params_none,
.template_size = sizeof(template_params_none),
.param_list = params_pen_some,
.param_num = ARRAY_SIZE(params_pen_some),
.expected = template_params_none,
},
};
static void uclogic_template_case_desc(struct uclogic_template_case *t,
char *desc)
{
strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
}
KUNIT_ARRAY_PARAM(uclogic_template, uclogic_template_cases,
uclogic_template_case_desc);
static void hid_test_uclogic_template(struct kunit *test)
{
__u8 *res;
const struct uclogic_template_case *params = test->param_value;
res = uclogic_rdesc_template_apply(params->template,
params->template_size,
params->param_list,
params->param_num);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res);
KUNIT_EXPECT_MEMEQ(test, res, params->expected, params->template_size);
kfree(res);
}
static struct kunit_case hid_uclogic_rdesc_test_cases[] = {
KUNIT_CASE_PARAM(hid_test_uclogic_template, uclogic_template_gen_params),
{}
};
static struct kunit_suite hid_uclogic_rdesc_test_suite = {
.name = "hid_uclogic_rdesc_test",
.test_cases = hid_uclogic_rdesc_test_cases,
};
kunit_test_suite(hid_uclogic_rdesc_test_suite);
MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("José Expósito <[email protected]>");
| linux-master | drivers/hid/hid-uclogic-rdesc-test.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Kone[+] driver for Linux
*
* Copyright (c) 2010 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Kone[+] is an updated/improved version of the Kone with more memory
* and functionality and without the non-standard behaviours the Kone had.
* KoneXTD has same capabilities but updated sensor.
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-koneplus.h"
static uint profile_numbers[5] = {0, 1, 2, 3, 4};
static void koneplus_profile_activated(struct koneplus_device *koneplus,
uint new_profile)
{
koneplus->actual_profile = new_profile;
}
static int koneplus_send_control(struct usb_device *usb_dev, uint value,
enum koneplus_control_requests request)
{
struct roccat_common2_control control;
if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
value > 4)
return -EINVAL;
control.command = ROCCAT_COMMON_COMMAND_CONTROL;
control.value = value;
control.request = request;
return roccat_common2_send_with_status(usb_dev,
ROCCAT_COMMON_COMMAND_CONTROL,
&control, sizeof(struct roccat_common2_control));
}
/* retval is 0-4 on success, < 0 on error */
static int koneplus_get_actual_profile(struct usb_device *usb_dev)
{
struct koneplus_actual_profile buf;
int retval;
retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
return retval ? retval : buf.actual_profile;
}
static int koneplus_set_actual_profile(struct usb_device *usb_dev,
int new_profile)
{
struct koneplus_actual_profile buf;
buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
buf.actual_profile = new_profile;
return roccat_common2_send_with_status(usb_dev,
KONEPLUS_COMMAND_ACTUAL_PROFILE,
&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
}
static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
char *buf, loff_t off, size_t count,
size_t real_size, uint command)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval;
if (off >= real_size)
return 0;
if (off != 0 || count != real_size)
return -EINVAL;
mutex_lock(&koneplus->koneplus_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&koneplus->koneplus_lock);
if (retval)
return retval;
return real_size;
}
static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
void const *buf, loff_t off, size_t count,
size_t real_size, uint command)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval;
if (off != 0 || count != real_size)
return -EINVAL;
mutex_lock(&koneplus->koneplus_lock);
retval = roccat_common2_send_with_status(usb_dev, command,
buf, real_size);
mutex_unlock(&koneplus->koneplus_lock);
if (retval)
return retval;
return real_size;
}
#define KONEPLUS_SYSFS_W(thingy, THINGY) \
static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return koneplus_sysfs_write(fp, kobj, buf, off, count, \
KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}
#define KONEPLUS_SYSFS_R(thingy, THINGY) \
static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return koneplus_sysfs_read(fp, kobj, buf, off, count, \
KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}
#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY)
#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
KONEPLUS_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = KONEPLUS_SIZE_ ## THINGY, \
.read = koneplus_sysfs_read_ ## thingy, \
.write = koneplus_sysfs_write_ ## thingy \
}
#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0440 }, \
.size = KONEPLUS_SIZE_ ## THINGY, \
.read = koneplus_sysfs_read_ ## thingy, \
}
#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0220 }, \
.size = KONEPLUS_SIZE_ ## THINGY, \
.write = koneplus_sysfs_write_ ## thingy \
}
KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK);
KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO);
KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE);
KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO);
KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR);
KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
ssize_t retval;
retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
if (retval)
return retval;
return koneplus_sysfs_read(fp, kobj, buf, off, count,
KONEPLUS_SIZE_PROFILE_SETTINGS,
KONEPLUS_COMMAND_PROFILE_SETTINGS);
}
static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
ssize_t retval;
retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
if (retval)
return retval;
return koneplus_sysfs_read(fp, kobj, buf, off, count,
KONEPLUS_SIZE_PROFILE_BUTTONS,
KONEPLUS_COMMAND_PROFILE_BUTTONS);
}
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
.attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = KONEPLUS_SIZE_PROFILE_SETTINGS, \
.read = koneplus_sysfs_read_profilex_settings, \
.private = &profile_numbers[number-1], \
}; \
static struct bin_attribute bin_attr_profile##number##_buttons = { \
.attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
.size = KONEPLUS_SIZE_PROFILE_BUTTONS, \
.read = koneplus_sysfs_read_profilex_buttons, \
.private = &profile_numbers[number-1], \
};
PROFILE_ATTR(1);
PROFILE_ATTR(2);
PROFILE_ATTR(3);
PROFILE_ATTR(4);
PROFILE_ATTR(5);
static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct koneplus_device *koneplus =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
}
static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct koneplus_device *koneplus;
struct usb_device *usb_dev;
unsigned long profile;
int retval;
struct koneplus_roccat_report roccat_report;
dev = dev->parent->parent;
koneplus = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
retval = kstrtoul(buf, 10, &profile);
if (retval)
return retval;
if (profile > 4)
return -EINVAL;
mutex_lock(&koneplus->koneplus_lock);
retval = koneplus_set_actual_profile(usb_dev, profile);
if (retval) {
mutex_unlock(&koneplus->koneplus_lock);
return retval;
}
koneplus_profile_activated(koneplus, profile);
roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
roccat_report.data1 = profile + 1;
roccat_report.data2 = 0;
roccat_report.profile = profile + 1;
roccat_report_event(koneplus->chrdev_minor,
(uint8_t const *)&roccat_report);
mutex_unlock(&koneplus->koneplus_lock);
return size;
}
static DEVICE_ATTR(actual_profile, 0660,
koneplus_sysfs_show_actual_profile,
koneplus_sysfs_set_actual_profile);
static DEVICE_ATTR(startup_profile, 0660,
koneplus_sysfs_show_actual_profile,
koneplus_sysfs_set_actual_profile);
static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct koneplus_device *koneplus;
struct usb_device *usb_dev;
struct koneplus_info info;
dev = dev->parent->parent;
koneplus = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
mutex_lock(&koneplus->koneplus_lock);
roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
&info, KONEPLUS_SIZE_INFO);
mutex_unlock(&koneplus->koneplus_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
}
static DEVICE_ATTR(firmware_version, 0440,
koneplus_sysfs_show_firmware_version, NULL);
static struct attribute *koneplus_attrs[] = {
&dev_attr_actual_profile.attr,
&dev_attr_startup_profile.attr,
&dev_attr_firmware_version.attr,
NULL,
};
static struct bin_attribute *koneplus_bin_attributes[] = {
&bin_attr_control,
&bin_attr_talk,
&bin_attr_macro,
&bin_attr_tcu_image,
&bin_attr_info,
&bin_attr_sensor,
&bin_attr_tcu,
&bin_attr_profile_settings,
&bin_attr_profile_buttons,
&bin_attr_profile1_settings,
&bin_attr_profile2_settings,
&bin_attr_profile3_settings,
&bin_attr_profile4_settings,
&bin_attr_profile5_settings,
&bin_attr_profile1_buttons,
&bin_attr_profile2_buttons,
&bin_attr_profile3_buttons,
&bin_attr_profile4_buttons,
&bin_attr_profile5_buttons,
NULL,
};
static const struct attribute_group koneplus_group = {
.attrs = koneplus_attrs,
.bin_attrs = koneplus_bin_attributes,
};
static const struct attribute_group *koneplus_groups[] = {
&koneplus_group,
NULL,
};
static const struct class koneplus_class = {
.name = "koneplus",
.dev_groups = koneplus_groups,
};
static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
struct koneplus_device *koneplus)
{
int retval;
mutex_init(&koneplus->koneplus_lock);
retval = koneplus_get_actual_profile(usb_dev);
if (retval < 0)
return retval;
koneplus_profile_activated(koneplus, retval);
return 0;
}
static int koneplus_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct koneplus_device *koneplus;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
if (!koneplus) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, koneplus);
retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
if (retval) {
hid_err(hdev, "couldn't init struct koneplus_device\n");
goto exit_free;
}
retval = roccat_connect(&koneplus_class, hdev,
sizeof(struct koneplus_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
koneplus->chrdev_minor = retval;
koneplus->roccat_claimed = 1;
}
} else {
hid_set_drvdata(hdev, NULL);
}
return 0;
exit_free:
kfree(koneplus);
return retval;
}
static void koneplus_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct koneplus_device *koneplus;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
koneplus = hid_get_drvdata(hdev);
if (koneplus->roccat_claimed)
roccat_disconnect(koneplus->chrdev_minor);
kfree(koneplus);
}
}
static int koneplus_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = koneplus_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void koneplus_remove(struct hid_device *hdev)
{
koneplus_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
u8 const *data)
{
struct koneplus_mouse_report_button const *button_report;
switch (data[0]) {
case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
button_report = (struct koneplus_mouse_report_button const *)data;
switch (button_report->type) {
case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
koneplus_profile_activated(koneplus, button_report->data1 - 1);
break;
}
break;
}
}
static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
u8 const *data)
{
struct koneplus_roccat_report roccat_report;
struct koneplus_mouse_report_button const *button_report;
if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
return;
button_report = (struct koneplus_mouse_report_button const *)data;
if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
return;
roccat_report.type = button_report->type;
roccat_report.data1 = button_report->data1;
roccat_report.data2 = button_report->data2;
roccat_report.profile = koneplus->actual_profile + 1;
roccat_report_event(koneplus->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int koneplus_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct koneplus_device *koneplus = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (koneplus == NULL)
return 0;
koneplus_keep_values_up_to_date(koneplus, data);
if (koneplus->roccat_claimed)
koneplus_report_to_chrdev(koneplus, data);
return 0;
}
static const struct hid_device_id koneplus_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
{ }
};
MODULE_DEVICE_TABLE(hid, koneplus_devices);
static struct hid_driver koneplus_driver = {
.name = "koneplus",
.id_table = koneplus_devices,
.probe = koneplus_probe,
.remove = koneplus_remove,
.raw_event = koneplus_raw_event
};
static int __init koneplus_init(void)
{
int retval;
/* class name has to be same as driver name */
retval = class_register(&koneplus_class);
if (retval)
return retval;
retval = hid_register_driver(&koneplus_driver);
if (retval)
class_unregister(&koneplus_class);
return retval;
}
static void __exit koneplus_exit(void)
{
hid_unregister_driver(&koneplus_driver);
class_unregister(&koneplus_class);
}
module_init(koneplus_init);
module_exit(koneplus_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-koneplus.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for PhoenixRC 8-axis flight controller
*
* Copyright (C) 2022 Marcus Folkesson <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
struct pxrc_priv {
u8 slider;
u8 dial;
bool alternate;
};
static __u8 pxrc_rdesc_fixed[] = {
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x04, // Usage (Joystick)
0xA1, 0x01, // Collection (Application)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x09, 0x30, // Usage (X)
0x09, 0x36, // Usage (Slider)
0x09, 0x31, // Usage (Y)
0x09, 0x32, // Usage (Z)
0x09, 0x33, // Usage (Rx)
0x09, 0x34, // Usage (Ry)
0x09, 0x35, // Usage (Rz)
0x09, 0x37, // Usage (Dial)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x35, 0x00, // Physical Minimum (0)
0x46, 0xFF, 0x00, // Physical Maximum (255)
0x75, 0x08, // Report Size (8)
0x95, 0x08, // Report Count (8)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0xC0, // End Collection
};
static __u8 *pxrc_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
hid_info(hdev, "fixing up PXRC report descriptor\n");
*rsize = sizeof(pxrc_rdesc_fixed);
return pxrc_rdesc_fixed;
}
static int pxrc_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct pxrc_priv *priv = hid_get_drvdata(hdev);
if (priv->alternate)
priv->slider = data[7];
else
priv->dial = data[7];
data[1] = priv->slider;
data[7] = priv->dial;
priv->alternate = !priv->alternate;
return 0;
}
static int pxrc_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct pxrc_priv *priv;
priv = devm_kzalloc(&hdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
hid_set_drvdata(hdev, priv);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static const struct hid_device_id pxrc_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MULTIPLE_1781, USB_DEVICE_ID_PHOENIXRC) },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(hid, pxrc_devices);
static struct hid_driver pxrc_driver = {
.name = "hid-pxrc",
.id_table = pxrc_devices,
.report_fixup = pxrc_report_fixup,
.probe = pxrc_probe,
.raw_event = pxrc_raw_event,
};
module_hid_driver(pxrc_driver);
MODULE_AUTHOR("Marcus Folkesson <[email protected]>");
MODULE_DESCRIPTION("HID driver for PXRC 8-axis flight controller");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-pxrc.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Logitech Flight System G940
*
* Copyright (c) 2009 Gary Stein <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/hid.h>
#include "hid-lg.h"
/*
* G940 Theory of Operation (from experimentation)
*
* There are 63 fields (only 3 of them currently used)
* 0 - seems to be command field
* 1 - 30 deal with the x axis
* 31 -60 deal with the y axis
*
* Field 1 is x axis constant force
* Field 31 is y axis constant force
*
* other interesting fields 1,2,3,4 on x axis
* (same for 31,32,33,34 on y axis)
*
* 0 0 127 127 makes the joystick autocenter hard
*
* 127 0 127 127 makes the joystick loose on the right,
* but stops all movemnt left
*
* -127 0 -127 -127 makes the joystick loose on the left,
* but stops all movement right
*
* 0 0 -127 -127 makes the joystick rattle very hard
*
* I'm sure these are effects that I don't know enough about them
*/
struct lg3ff_device {
struct hid_report *report;
};
static int hid_lg3ff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
int x, y;
/*
* Available values in the field should always be 63, but we only use up to
* 35. Instead, clear the entire area, however big it is.
*/
memset(report->field[0]->value, 0,
sizeof(__s32) * report->field[0]->report_count);
switch (effect->type) {
case FF_CONSTANT:
/*
* Already clamped in ff_memless
* 0 is center (different then other logitech)
*/
x = effect->u.ramp.start_level;
y = effect->u.ramp.end_level;
/* send command byte */
report->field[0]->value[0] = 0x51;
/*
* Sign backwards from other Force3d pro
* which get recast here in two's complement 8 bits
*/
report->field[0]->value[1] = (unsigned char)(-x);
report->field[0]->value[31] = (unsigned char)(-y);
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
break;
}
return 0;
}
static void hid_lg3ff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
/*
* Auto Centering probed from device
* NOTE: deadman's switch on G940 must be covered
* for effects to work
*/
report->field[0]->value[0] = 0x51;
report->field[0]->value[1] = 0x00;
report->field[0]->value[2] = 0x00;
report->field[0]->value[3] = 0x7F;
report->field[0]->value[4] = 0x7F;
report->field[0]->value[31] = 0x00;
report->field[0]->value[32] = 0x00;
report->field[0]->value[33] = 0x7F;
report->field[0]->value[34] = 0x7F;
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
}
static const signed short ff3_joystick_ac[] = {
FF_CONSTANT,
FF_AUTOCENTER,
-1
};
int lg3ff_init(struct hid_device *hid)
{
struct hid_input *hidinput;
struct input_dev *dev;
const signed short *ff_bits = ff3_joystick_ac;
int error;
int i;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
/* Check that the report looks ok */
if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 35))
return -ENODEV;
/* Assume single fixed device G940 */
for (i = 0; ff_bits[i] >= 0; i++)
set_bit(ff_bits[i], dev->ffbit);
error = input_ff_create_memless(dev, NULL, hid_lg3ff_play);
if (error)
return error;
if (test_bit(FF_AUTOCENTER, dev->ffbit))
dev->ff->set_autocenter = hid_lg3ff_set_autocenter;
hid_info(hid, "Force feedback for Logitech Flight System G940 by Gary Stein <[email protected]>\n");
return 0;
}
| linux-master | drivers/hid/hid-lg3ff.c |
// SPDX-License-Identifier: GPL-2.0-only
/***************************************************************************
* Copyright (C) 2010-2012 by Bruno Prémont <[email protected]> *
* *
* Based on Logitech G13 driver (v0.4) *
* Copyright (C) 2009 by Rick L. Vinyard, Jr. <[email protected]> *
* *
***************************************************************************/
#include <linux/hid.h>
#include <linux/hid-debug.h>
#include <linux/fb.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/uaccess.h>
#include "hid-picolcd.h"
static int picolcd_debug_reset_show(struct seq_file *f, void *p)
{
if (picolcd_fbinfo((struct picolcd_data *)f->private))
seq_printf(f, "all fb\n");
else
seq_printf(f, "all\n");
return 0;
}
static int picolcd_debug_reset_open(struct inode *inode, struct file *f)
{
return single_open(f, picolcd_debug_reset_show, inode->i_private);
}
static ssize_t picolcd_debug_reset_write(struct file *f, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct picolcd_data *data = ((struct seq_file *)f->private_data)->private;
char buf[32];
size_t cnt = min(count, sizeof(buf)-1);
if (copy_from_user(buf, user_buf, cnt))
return -EFAULT;
while (cnt > 0 && (buf[cnt-1] == ' ' || buf[cnt-1] == '\n'))
cnt--;
buf[cnt] = '\0';
if (strcmp(buf, "all") == 0) {
picolcd_reset(data->hdev);
picolcd_fb_reset(data, 1);
} else if (strcmp(buf, "fb") == 0) {
picolcd_fb_reset(data, 1);
} else {
return -EINVAL;
}
return count;
}
static const struct file_operations picolcd_debug_reset_fops = {
.owner = THIS_MODULE,
.open = picolcd_debug_reset_open,
.read = seq_read,
.llseek = seq_lseek,
.write = picolcd_debug_reset_write,
.release = single_release,
};
/*
* The "eeprom" file
*/
static ssize_t picolcd_debug_eeprom_read(struct file *f, char __user *u,
size_t s, loff_t *off)
{
struct picolcd_data *data = f->private_data;
struct picolcd_pending *resp;
u8 raw_data[3];
ssize_t ret = -EIO;
if (s == 0)
return -EINVAL;
if (*off > 0x0ff)
return 0;
/* prepare buffer with info about what we want to read (addr & len) */
raw_data[0] = *off & 0xff;
raw_data[1] = (*off >> 8) & 0xff;
raw_data[2] = s < 20 ? s : 20;
if (*off + raw_data[2] > 0xff)
raw_data[2] = 0x100 - *off;
resp = picolcd_send_and_wait(data->hdev, REPORT_EE_READ, raw_data,
sizeof(raw_data));
if (!resp)
return -EIO;
if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
/* successful read :) */
ret = resp->raw_data[2];
if (ret > s)
ret = s;
if (copy_to_user(u, resp->raw_data+3, ret))
ret = -EFAULT;
else
*off += ret;
} /* anything else is some kind of IO error */
kfree(resp);
return ret;
}
static ssize_t picolcd_debug_eeprom_write(struct file *f, const char __user *u,
size_t s, loff_t *off)
{
struct picolcd_data *data = f->private_data;
struct picolcd_pending *resp;
ssize_t ret = -EIO;
u8 raw_data[23];
if (s == 0)
return -EINVAL;
if (*off > 0x0ff)
return -ENOSPC;
memset(raw_data, 0, sizeof(raw_data));
raw_data[0] = *off & 0xff;
raw_data[1] = (*off >> 8) & 0xff;
raw_data[2] = min_t(size_t, 20, s);
if (*off + raw_data[2] > 0xff)
raw_data[2] = 0x100 - *off;
if (copy_from_user(raw_data+3, u, min((u8)20, raw_data[2])))
return -EFAULT;
resp = picolcd_send_and_wait(data->hdev, REPORT_EE_WRITE, raw_data,
sizeof(raw_data));
if (!resp)
return -EIO;
if (resp->in_report && resp->in_report->id == REPORT_EE_DATA) {
/* check if written data matches */
if (memcmp(raw_data, resp->raw_data, 3+raw_data[2]) == 0) {
*off += raw_data[2];
ret = raw_data[2];
}
}
kfree(resp);
return ret;
}
/*
* Notes:
* - read/write happens in chunks of at most 20 bytes, it's up to userspace
* to loop in order to get more data.
* - on write errors on otherwise correct write request the bytes
* that should have been written are in undefined state.
*/
static const struct file_operations picolcd_debug_eeprom_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = picolcd_debug_eeprom_read,
.write = picolcd_debug_eeprom_write,
.llseek = generic_file_llseek,
};
/*
* The "flash" file
*/
/* record a flash address to buf (bounds check to be done by caller) */
static int _picolcd_flash_setaddr(struct picolcd_data *data, u8 *buf, long off)
{
buf[0] = off & 0xff;
buf[1] = (off >> 8) & 0xff;
if (data->addr_sz == 3)
buf[2] = (off >> 16) & 0xff;
return data->addr_sz == 2 ? 2 : 3;
}
/* read a given size of data (bounds check to be done by caller) */
static ssize_t _picolcd_flash_read(struct picolcd_data *data, int report_id,
char __user *u, size_t s, loff_t *off)
{
struct picolcd_pending *resp;
u8 raw_data[4];
ssize_t ret = 0;
int len_off, err = -EIO;
while (s > 0) {
err = -EIO;
len_off = _picolcd_flash_setaddr(data, raw_data, *off);
raw_data[len_off] = s > 32 ? 32 : s;
resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off+1);
if (!resp || !resp->in_report)
goto skip;
if (resp->in_report->id == REPORT_MEMORY ||
resp->in_report->id == REPORT_BL_READ_MEMORY) {
if (memcmp(raw_data, resp->raw_data, len_off+1) != 0)
goto skip;
if (copy_to_user(u+ret, resp->raw_data+len_off+1, raw_data[len_off])) {
err = -EFAULT;
goto skip;
}
*off += raw_data[len_off];
s -= raw_data[len_off];
ret += raw_data[len_off];
err = 0;
}
skip:
kfree(resp);
if (err)
return ret > 0 ? ret : err;
}
return ret;
}
static ssize_t picolcd_debug_flash_read(struct file *f, char __user *u,
size_t s, loff_t *off)
{
struct picolcd_data *data = f->private_data;
if (s == 0)
return -EINVAL;
if (*off > 0x05fff)
return 0;
if (*off + s > 0x05fff)
s = 0x06000 - *off;
if (data->status & PICOLCD_BOOTLOADER)
return _picolcd_flash_read(data, REPORT_BL_READ_MEMORY, u, s, off);
else
return _picolcd_flash_read(data, REPORT_READ_MEMORY, u, s, off);
}
/* erase block aligned to 64bytes boundary */
static ssize_t _picolcd_flash_erase64(struct picolcd_data *data, int report_id,
loff_t *off)
{
struct picolcd_pending *resp;
u8 raw_data[3];
int len_off;
ssize_t ret = -EIO;
if (*off & 0x3f)
return -EINVAL;
len_off = _picolcd_flash_setaddr(data, raw_data, *off);
resp = picolcd_send_and_wait(data->hdev, report_id, raw_data, len_off);
if (!resp || !resp->in_report)
goto skip;
if (resp->in_report->id == REPORT_MEMORY ||
resp->in_report->id == REPORT_BL_ERASE_MEMORY) {
if (memcmp(raw_data, resp->raw_data, len_off) != 0)
goto skip;
ret = 0;
}
skip:
kfree(resp);
return ret;
}
/* write a given size of data (bounds check to be done by caller) */
static ssize_t _picolcd_flash_write(struct picolcd_data *data, int report_id,
const char __user *u, size_t s, loff_t *off)
{
struct picolcd_pending *resp;
u8 raw_data[36];
ssize_t ret = 0;
int len_off, err = -EIO;
while (s > 0) {
err = -EIO;
len_off = _picolcd_flash_setaddr(data, raw_data, *off);
raw_data[len_off] = s > 32 ? 32 : s;
if (copy_from_user(raw_data+len_off+1, u, raw_data[len_off])) {
err = -EFAULT;
break;
}
resp = picolcd_send_and_wait(data->hdev, report_id, raw_data,
len_off+1+raw_data[len_off]);
if (!resp || !resp->in_report)
goto skip;
if (resp->in_report->id == REPORT_MEMORY ||
resp->in_report->id == REPORT_BL_WRITE_MEMORY) {
if (memcmp(raw_data, resp->raw_data, len_off+1+raw_data[len_off]) != 0)
goto skip;
*off += raw_data[len_off];
s -= raw_data[len_off];
ret += raw_data[len_off];
err = 0;
}
skip:
kfree(resp);
if (err)
break;
}
return ret > 0 ? ret : err;
}
static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u,
size_t s, loff_t *off)
{
struct picolcd_data *data = f->private_data;
ssize_t err, ret = 0;
int report_erase, report_write;
if (s == 0)
return -EINVAL;
if (*off > 0x5fff)
return -ENOSPC;
if (s & 0x3f)
return -EINVAL;
if (*off & 0x3f)
return -EINVAL;
if (data->status & PICOLCD_BOOTLOADER) {
report_erase = REPORT_BL_ERASE_MEMORY;
report_write = REPORT_BL_WRITE_MEMORY;
} else {
report_erase = REPORT_ERASE_MEMORY;
report_write = REPORT_WRITE_MEMORY;
}
mutex_lock(&data->mutex_flash);
while (s > 0) {
err = _picolcd_flash_erase64(data, report_erase, off);
if (err)
break;
err = _picolcd_flash_write(data, report_write, u, 64, off);
if (err < 0)
break;
ret += err;
*off += err;
s -= err;
if (err != 64)
break;
}
mutex_unlock(&data->mutex_flash);
return ret > 0 ? ret : err;
}
/*
* Notes:
* - concurrent writing is prevented by mutex and all writes must be
* n*64 bytes and 64-byte aligned, each write being preceded by an
* ERASE which erases a 64byte block.
* If less than requested was written or an error is returned for an
* otherwise correct write request the next 64-byte block which should
* have been written is in undefined state (mostly: original, erased,
* (half-)written with write error)
* - reading can happen without special restriction
*/
static const struct file_operations picolcd_debug_flash_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = picolcd_debug_flash_read,
.write = picolcd_debug_flash_write,
.llseek = generic_file_llseek,
};
/*
* Helper code for HID report level dumping/debugging
*/
static const char * const error_codes[] = {
"success", "parameter missing", "data_missing", "block readonly",
"block not erasable", "block too big", "section overflow",
"invalid command length", "invalid data length",
};
static void dump_buff_as_hex(char *dst, size_t dst_sz, const u8 *data,
const size_t data_len)
{
int i, j;
for (i = j = 0; i < data_len && j + 4 < dst_sz; i++) {
dst[j++] = hex_asc[(data[i] >> 4) & 0x0f];
dst[j++] = hex_asc[data[i] & 0x0f];
dst[j++] = ' ';
}
dst[j] = '\0';
if (j > 0)
dst[j-1] = '\n';
if (i < data_len && j > 2)
dst[j-2] = dst[j-3] = '.';
}
void picolcd_debug_out_report(struct picolcd_data *data,
struct hid_device *hdev, struct hid_report *report)
{
u8 *raw_data;
int raw_size = (report->size >> 3) + 1;
char *buff;
#define BUFF_SZ 256
/* Avoid unnecessary overhead if debugfs is disabled */
if (list_empty(&hdev->debug_list))
return;
buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
if (!buff)
return;
raw_data = hid_alloc_report_buf(report, GFP_ATOMIC);
if (!raw_data) {
kfree(buff);
return;
}
snprintf(buff, BUFF_SZ, "\nout report %d (size %d) = ",
report->id, raw_size);
hid_debug_event(hdev, buff);
raw_data[0] = report->id;
hid_output_report(report, raw_data);
dump_buff_as_hex(buff, BUFF_SZ, raw_data, raw_size);
hid_debug_event(hdev, buff);
switch (report->id) {
case REPORT_LED_STATE:
/* 1 data byte with GPO state */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LED_STATE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tGPO state: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_BRIGHTNESS:
/* 1 data byte with brightness */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_BRIGHTNESS", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tBrightness: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_CONTRAST:
/* 1 data byte with contrast */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_CONTRAST", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tContrast: 0x%02x\n", raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_RESET:
/* 2 data bytes with reset duration in ms */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_RESET", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tDuration: 0x%02x%02x (%dms)\n",
raw_data[2], raw_data[1], raw_data[2] << 8 | raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_LCD_CMD:
/* 63 data bytes with LCD commands */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
hid_debug_event(hdev, buff);
/* TODO: format decoding */
break;
case REPORT_LCD_DATA:
/* 63 data bytes with LCD data */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
/* TODO: format decoding */
hid_debug_event(hdev, buff);
break;
case REPORT_LCD_CMD_DATA:
/* 63 data bytes with LCD commands and data */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_LCD_CMD", report->id, raw_size-1);
/* TODO: format decoding */
hid_debug_event(hdev, buff);
break;
case REPORT_EE_READ:
/* 3 data bytes with read area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EE_READ", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
break;
case REPORT_EE_WRITE:
/* 3+1..20 data bytes with write area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EE_WRITE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[3] + 4 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_ERASE_MEMORY:
case REPORT_BL_ERASE_MEMORY:
/* 3 data bytes with pointer inside erase block */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_ERASE_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
break;
case 3:
snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_READ_MEMORY:
case REPORT_BL_READ_MEMORY:
/* 4 data bytes with read area description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_READ_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
break;
case 3:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_WRITE_MEMORY:
case REPORT_BL_WRITE_MEMORY:
/* 4+1..32 data bytes with write adrea description */
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_WRITE_MEMORY", report->id, raw_size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[3] + 4 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
case 3:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
hid_debug_event(hdev, buff);
if (raw_data[4] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[4] + 5 <= raw_size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_SPLASH_RESTART:
/* TODO */
break;
case REPORT_EXIT_KEYBOARD:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_EXIT_KEYBOARD", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
raw_data[1] | (raw_data[2] << 8),
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_VERSION:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_DEVID:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_DEVID", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_SPLASH_SIZE:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_SPLASH_SIZE", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_HOOK_VERSION:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_HOOK_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
case REPORT_EXIT_FLASHER:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"REPORT_VERSION", report->id, raw_size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n",
raw_data[1] | (raw_data[2] << 8),
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
default:
snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n",
"<unknown>", report->id, raw_size-1);
hid_debug_event(hdev, buff);
break;
}
wake_up_interruptible(&hdev->debug_wait);
kfree(raw_data);
kfree(buff);
}
void picolcd_debug_raw_event(struct picolcd_data *data,
struct hid_device *hdev, struct hid_report *report,
u8 *raw_data, int size)
{
char *buff;
#define BUFF_SZ 256
/* Avoid unnecessary overhead if debugfs is disabled */
if (list_empty(&hdev->debug_list))
return;
buff = kmalloc(BUFF_SZ, GFP_ATOMIC);
if (!buff)
return;
switch (report->id) {
case REPORT_ERROR_CODE:
/* 2 data bytes with affected report and error code */
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_ERROR_CODE", report->id, size-1);
hid_debug_event(hdev, buff);
if (raw_data[2] < ARRAY_SIZE(error_codes))
snprintf(buff, BUFF_SZ, "\tError code 0x%02x (%s) in reply to report 0x%02x\n",
raw_data[2], error_codes[raw_data[2]], raw_data[1]);
else
snprintf(buff, BUFF_SZ, "\tError code 0x%02x in reply to report 0x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_KEY_STATE:
/* 2 data bytes with key state */
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_KEY_STATE", report->id, size-1);
hid_debug_event(hdev, buff);
if (raw_data[1] == 0)
snprintf(buff, BUFF_SZ, "\tNo key pressed\n");
else if (raw_data[2] == 0)
snprintf(buff, BUFF_SZ, "\tOne key pressed: 0x%02x (%d)\n",
raw_data[1], raw_data[1]);
else
snprintf(buff, BUFF_SZ, "\tTwo keys pressed: 0x%02x (%d), 0x%02x (%d)\n",
raw_data[1], raw_data[1], raw_data[2], raw_data[2]);
hid_debug_event(hdev, buff);
break;
case REPORT_IR_DATA:
/* Up to 20 byes of IR scancode data */
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_IR_DATA", report->id, size-1);
hid_debug_event(hdev, buff);
if (raw_data[1] == 0) {
snprintf(buff, BUFF_SZ, "\tUnexpectedly 0 data length\n");
hid_debug_event(hdev, buff);
} else if (raw_data[1] + 1 <= size) {
snprintf(buff, BUFF_SZ, "\tData length: %d\n\tIR Data: ",
raw_data[1]);
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+2, raw_data[1]);
hid_debug_event(hdev, buff);
} else {
snprintf(buff, BUFF_SZ, "\tOverflowing data length: %d\n",
raw_data[1]-1);
hid_debug_event(hdev, buff);
}
break;
case REPORT_EE_DATA:
/* Data buffer in response to REPORT_EE_READ or REPORT_EE_WRITE */
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_EE_DATA", report->id, size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
hid_debug_event(hdev, buff);
} else if (raw_data[3] + 4 <= size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
hid_debug_event(hdev, buff);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
hid_debug_event(hdev, buff);
}
break;
case REPORT_MEMORY:
/* Data buffer in response to REPORT_READ_MEMORY or REPORT_WRITE_MEMORY */
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_MEMORY", report->id, size-1);
hid_debug_event(hdev, buff);
switch (data->addr_sz) {
case 2:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]);
hid_debug_event(hdev, buff);
if (raw_data[3] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[3] + 4 <= size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
case 3:
snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n",
raw_data[3], raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]);
hid_debug_event(hdev, buff);
if (raw_data[4] == 0) {
snprintf(buff, BUFF_SZ, "\tNo data\n");
} else if (raw_data[4] + 5 <= size) {
snprintf(buff, BUFF_SZ, "\tData: ");
hid_debug_event(hdev, buff);
dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]);
} else {
snprintf(buff, BUFF_SZ, "\tData overflowed\n");
}
break;
default:
snprintf(buff, BUFF_SZ, "\tNot supported\n");
}
hid_debug_event(hdev, buff);
break;
case REPORT_VERSION:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_VERSION", report->id, size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
raw_data[2], raw_data[1]);
hid_debug_event(hdev, buff);
break;
case REPORT_BL_ERASE_MEMORY:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_BL_ERASE_MEMORY", report->id, size-1);
hid_debug_event(hdev, buff);
/* TODO */
break;
case REPORT_BL_READ_MEMORY:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_BL_READ_MEMORY", report->id, size-1);
hid_debug_event(hdev, buff);
/* TODO */
break;
case REPORT_BL_WRITE_MEMORY:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_BL_WRITE_MEMORY", report->id, size-1);
hid_debug_event(hdev, buff);
/* TODO */
break;
case REPORT_DEVID:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_DEVID", report->id, size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n",
raw_data[1], raw_data[2], raw_data[3], raw_data[4]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n",
raw_data[5]);
hid_debug_event(hdev, buff);
break;
case REPORT_SPLASH_SIZE:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_SPLASH_SIZE", report->id, size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n",
(raw_data[2] << 8) | raw_data[1]);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n",
(raw_data[4] << 8) | raw_data[3]);
hid_debug_event(hdev, buff);
break;
case REPORT_HOOK_VERSION:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"REPORT_HOOK_VERSION", report->id, size-1);
hid_debug_event(hdev, buff);
snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
raw_data[1], raw_data[2]);
hid_debug_event(hdev, buff);
break;
default:
snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
"<unknown>", report->id, size-1);
hid_debug_event(hdev, buff);
break;
}
wake_up_interruptible(&hdev->debug_wait);
kfree(buff);
}
void picolcd_init_devfs(struct picolcd_data *data,
struct hid_report *eeprom_r, struct hid_report *eeprom_w,
struct hid_report *flash_r, struct hid_report *flash_w,
struct hid_report *reset)
{
struct hid_device *hdev = data->hdev;
mutex_init(&data->mutex_flash);
/* reset */
if (reset)
data->debug_reset = debugfs_create_file("reset", 0600,
hdev->debug_dir, data, &picolcd_debug_reset_fops);
/* eeprom */
if (eeprom_r || eeprom_w)
data->debug_eeprom = debugfs_create_file("eeprom",
(eeprom_w ? S_IWUSR : 0) | (eeprom_r ? S_IRUSR : 0),
hdev->debug_dir, data, &picolcd_debug_eeprom_fops);
/* flash */
if (flash_r && flash_r->maxfield == 1 && flash_r->field[0]->report_size == 8)
data->addr_sz = flash_r->field[0]->report_count - 1;
else
data->addr_sz = -1;
if (data->addr_sz == 2 || data->addr_sz == 3) {
data->debug_flash = debugfs_create_file("flash",
(flash_w ? S_IWUSR : 0) | (flash_r ? S_IRUSR : 0),
hdev->debug_dir, data, &picolcd_debug_flash_fops);
} else if (flash_r || flash_w)
hid_warn(hdev, "Unexpected FLASH access reports, please submit rdesc for review\n");
}
void picolcd_exit_devfs(struct picolcd_data *data)
{
struct dentry *dent;
dent = data->debug_reset;
data->debug_reset = NULL;
debugfs_remove(dent);
dent = data->debug_eeprom;
data->debug_eeprom = NULL;
debugfs_remove(dent);
dent = data->debug_flash;
data->debug_flash = NULL;
debugfs_remove(dent);
mutex_destroy(&data->mutex_flash);
}
| linux-master | drivers/hid/hid-picolcd_debugfs.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Holtek keyboard
* Copyright (c) 2012 Tom Harwood
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#include "usbhid/usbhid.h"
/* Holtek based keyboards (USB ID 04d9:a055) have the following issues:
* - The report descriptor specifies an excessively large number of consumer
* usages (2^15), which is more than HID_MAX_USAGES. This prevents proper
* parsing of the report descriptor.
* - The report descriptor reports on caps/scroll/num lock key presses, but
* doesn't have an LED output usage block.
*
* The replacement descriptor below fixes the number of consumer usages,
* and provides an LED output usage block. LED output events are redirected
* to the boot interface.
*/
static __u8 holtek_kbd_rdesc_fixed[] = {
/* Original report descriptor, with reduced number of consumer usages */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x80, /* Usage (Sys Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x19, 0x81, /* Usage Minimum (Sys Power Down), */
0x29, 0x83, /* Usage Maximum (Sys Wake Up), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x75, 0x01, /* Report Size (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x05, /* Report Size (5), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x02, /* Report ID (2), */
0x19, 0x00, /* Usage Minimum (00h), */
0x2A, 0xFF, 0x2F, /* Usage Maximum (0x2FFF), previously 0x7FFF */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x2F, /* Logical Maximum (0x2FFF),previously 0x7FFF*/
0x95, 0x01, /* Report Count (1), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x00, /* Input, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x03, /* Report ID (3), */
0x95, 0x38, /* Report Count (56), */
0x75, 0x01, /* Report Size (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
0x19, 0x00, /* Usage Minimum (None), */
0x29, 0x2F, /* Usage Maximum (KB Lboxbracket And Lbrace),*/
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x04, /* Report ID (4), */
0x95, 0x38, /* Report Count (56), */
0x75, 0x01, /* Report Size (1), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x19, 0x30, /* Usage Minimum (KB Rboxbracket And Rbrace),*/
0x29, 0x67, /* Usage Maximum (KP Equals), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection */
/* LED usage for the boot protocol interface */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x05, 0x08, /* Usage Page (LED), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x91, 0x02, /* Output (Variable), */
0x95, 0x05, /* Report Count (5), */
0x91, 0x01, /* Output (Constant), */
0xC0, /* End Collection */
};
static __u8 *holtek_kbd_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
rdesc = holtek_kbd_rdesc_fixed;
*rsize = sizeof(holtek_kbd_rdesc_fixed);
}
return rdesc;
}
static int holtek_kbd_input_event(struct input_dev *dev, unsigned int type,
unsigned int code,
int value)
{
struct hid_device *hid = input_get_drvdata(dev);
struct usb_device *usb_dev = hid_to_usb_dev(hid);
/* Locate the boot interface, to receive the LED change events */
struct usb_interface *boot_interface = usb_ifnum_to_if(usb_dev, 0);
struct hid_device *boot_hid;
struct hid_input *boot_hid_input;
if (unlikely(boot_interface == NULL))
return -ENODEV;
boot_hid = usb_get_intfdata(boot_interface);
boot_hid_input = list_first_entry(&boot_hid->inputs,
struct hid_input, list);
return boot_hid_input->input->event(boot_hid_input->input, type, code,
value);
}
static int holtek_kbd_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct usb_interface *intf;
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
ret = hid_parse(hdev);
if (!ret)
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
intf = to_usb_interface(hdev->dev.parent);
if (!ret && intf->cur_altsetting->desc.bInterfaceNumber == 1) {
struct hid_input *hidinput;
list_for_each_entry(hidinput, &hdev->inputs, list) {
hidinput->input->event = holtek_kbd_input_event;
}
}
return ret;
}
static const struct hid_device_id holtek_kbd_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
{ }
};
MODULE_DEVICE_TABLE(hid, holtek_kbd_devices);
static struct hid_driver holtek_kbd_driver = {
.name = "holtek_kbd",
.id_table = holtek_kbd_devices,
.report_fixup = holtek_kbd_report_fixup,
.probe = holtek_kbd_probe
};
module_hid_driver(holtek_kbd_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-holtek-kbd.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Logitech RumblePad and Rumblepad 2
*
* Copyright (c) 2008 Anssi Hannula <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include "hid-lg.h"
struct lg2ff_device {
struct hid_report *report;
};
static int play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct lg2ff_device *lg2ff = data;
int weak, strong;
strong = effect->u.rumble.strong_magnitude;
weak = effect->u.rumble.weak_magnitude;
if (weak || strong) {
weak = weak * 0xff / 0xffff;
strong = strong * 0xff / 0xffff;
lg2ff->report->field[0]->value[0] = 0x51;
lg2ff->report->field[0]->value[2] = weak;
lg2ff->report->field[0]->value[4] = strong;
} else {
lg2ff->report->field[0]->value[0] = 0xf3;
lg2ff->report->field[0]->value[2] = 0x00;
lg2ff->report->field[0]->value[4] = 0x00;
}
hid_hw_request(hid, lg2ff->report, HID_REQ_SET_REPORT);
return 0;
}
int lg2ff_init(struct hid_device *hid)
{
struct lg2ff_device *lg2ff;
struct hid_report *report;
struct hid_input *hidinput;
struct input_dev *dev;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hid->inputs.next, struct hid_input, list);
dev = hidinput->input;
/* Check that the report looks ok */
report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
if (!report)
return -ENODEV;
lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL);
if (!lg2ff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, lg2ff, play_effect);
if (error) {
kfree(lg2ff);
return error;
}
lg2ff->report = report;
report->field[0]->value[0] = 0xf3;
report->field[0]->value[1] = 0x00;
report->field[0]->value[2] = 0x00;
report->field[0]->value[3] = 0x00;
report->field[0]->value[4] = 0x00;
report->field[0]->value[5] = 0x00;
report->field[0]->value[6] = 0x00;
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
hid_info(hid, "Force feedback for Logitech variant 2 rumble devices by Anssi Hannula <[email protected]>\n");
return 0;
}
| linux-master | drivers/hid/hid-lg2ff.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for some ITE "special" devices
* Copyright (c) 2017 Hans de Goede <[email protected]>
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define QUIRK_TOUCHPAD_ON_OFF_REPORT BIT(0)
static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if (quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) {
/* For Acer Aspire Switch 10 SW5-012 keyboard-dock */
if (*rsize == 188 && rdesc[162] == 0x81 && rdesc[163] == 0x02) {
hid_info(hdev, "Fixing up Acer Sw5-012 ITE keyboard report descriptor\n");
rdesc[163] = HID_MAIN_ITEM_RELATIVE;
}
/* For Acer One S1002/S1003 keyboard-dock */
if (*rsize == 188 && rdesc[185] == 0x81 && rdesc[186] == 0x02) {
hid_info(hdev, "Fixing up Acer S1002/S1003 ITE keyboard report descriptor\n");
rdesc[186] = HID_MAIN_ITEM_RELATIVE;
}
/* For Acer Aspire Switch 10E (SW3-016) keyboard-dock */
if (*rsize == 210 && rdesc[184] == 0x81 && rdesc[185] == 0x02) {
hid_info(hdev, "Fixing up Acer Aspire Switch 10E (SW3-016) ITE keyboard report descriptor\n");
rdesc[185] = HID_MAIN_ITEM_RELATIVE;
}
}
return rdesc;
}
static int ite_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit,
int *max)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if ((quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) &&
(usage->hid & HID_USAGE_PAGE) == 0x00880000) {
if (usage->hid == 0x00880078) {
/* Touchpad on, userspace expects F22 for this */
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F22);
return 1;
}
if (usage->hid == 0x00880079) {
/* Touchpad off, userspace expects F23 for this */
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F23);
return 1;
}
return -1;
}
return 0;
}
static int ite_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct input_dev *input;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
return 0;
input = field->hidinput->input;
/*
* The ITE8595 always reports 0 as value for the rfkill button. Luckily
* it is the only button in its report, and it sends a report on
* release only, so receiving a report means the button was pressed.
*/
if (usage->hid == HID_GD_RFKILL_BTN) {
input_event(input, EV_KEY, KEY_RFKILL, 1);
input_sync(input);
input_event(input, EV_KEY, KEY_RFKILL, 0);
input_sync(input);
return 1;
}
return 0;
}
static int ite_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hid_set_drvdata(hdev, (void *)id->driver_data);
ret = hid_open_report(hdev);
if (ret)
return ret;
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
static const struct hid_device_id ite_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1002),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_SYNAPTICS,
USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_017),
.driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
{ }
};
MODULE_DEVICE_TABLE(hid, ite_devices);
static struct hid_driver ite_driver = {
.name = "itetech",
.id_table = ite_devices,
.probe = ite_probe,
.report_fixup = ite_report_fixup,
.input_mapping = ite_input_mapping,
.event = ite_event,
};
module_hid_driver(ite_driver);
MODULE_AUTHOR("Hans de Goede <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-ite.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Apple "Magic" Wireless Mouse driver
*
* Copyright (c) 2010 Michael Poole <[email protected]>
* Copyright (c) 2010 Chase Douglas <[email protected]>
*/
/*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input/mt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include "hid-ids.h"
static bool emulate_3button = true;
module_param(emulate_3button, bool, 0644);
MODULE_PARM_DESC(emulate_3button, "Emulate a middle button");
static int middle_button_start = -350;
static int middle_button_stop = +350;
static bool emulate_scroll_wheel = true;
module_param(emulate_scroll_wheel, bool, 0644);
MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel");
static unsigned int scroll_speed = 32;
static int param_set_scroll_speed(const char *val,
const struct kernel_param *kp) {
unsigned long speed;
if (!val || kstrtoul(val, 0, &speed) || speed > 63)
return -EINVAL;
scroll_speed = speed;
return 0;
}
module_param_call(scroll_speed, param_set_scroll_speed, param_get_uint, &scroll_speed, 0644);
MODULE_PARM_DESC(scroll_speed, "Scroll speed, value from 0 (slow) to 63 (fast)");
static bool scroll_acceleration = false;
module_param(scroll_acceleration, bool, 0644);
MODULE_PARM_DESC(scroll_acceleration, "Accelerate sequential scroll events");
static bool report_undeciphered;
module_param(report_undeciphered, bool, 0644);
MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
#define TRACKPAD2_2021_BT_VERSION 0x110
#define TRACKPAD_REPORT_ID 0x28
#define TRACKPAD2_USB_REPORT_ID 0x02
#define TRACKPAD2_BT_REPORT_ID 0x31
#define MOUSE_REPORT_ID 0x29
#define MOUSE2_REPORT_ID 0x12
#define DOUBLE_REPORT_ID 0xf7
#define USB_BATTERY_TIMEOUT_MS 60000
/* These definitions are not precise, but they're close enough. (Bits
* 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
* to be some kind of bit mask -- 0x20 may be a near-field reading,
* and 0x40 is actual contact, and 0x10 may be a start/stop or change
* indication.)
*/
#define TOUCH_STATE_MASK 0xf0
#define TOUCH_STATE_NONE 0x00
#define TOUCH_STATE_START 0x30
#define TOUCH_STATE_DRAG 0x40
/* Number of high-resolution events for each low-resolution detent. */
#define SCROLL_HR_STEPS 10
#define SCROLL_HR_MULT (120 / SCROLL_HR_STEPS)
#define SCROLL_HR_THRESHOLD 90 /* units */
#define SCROLL_ACCEL_DEFAULT 7
/* Touch surface information. Dimension is in hundredths of a mm, min and max
* are in units. */
#define MOUSE_DIMENSION_X (float)9056
#define MOUSE_MIN_X -1100
#define MOUSE_MAX_X 1258
#define MOUSE_RES_X ((MOUSE_MAX_X - MOUSE_MIN_X) / (MOUSE_DIMENSION_X / 100))
#define MOUSE_DIMENSION_Y (float)5152
#define MOUSE_MIN_Y -1589
#define MOUSE_MAX_Y 2047
#define MOUSE_RES_Y ((MOUSE_MAX_Y - MOUSE_MIN_Y) / (MOUSE_DIMENSION_Y / 100))
#define TRACKPAD_DIMENSION_X (float)13000
#define TRACKPAD_MIN_X -2909
#define TRACKPAD_MAX_X 3167
#define TRACKPAD_RES_X \
((TRACKPAD_MAX_X - TRACKPAD_MIN_X) / (TRACKPAD_DIMENSION_X / 100))
#define TRACKPAD_DIMENSION_Y (float)11000
#define TRACKPAD_MIN_Y -2456
#define TRACKPAD_MAX_Y 2565
#define TRACKPAD_RES_Y \
((TRACKPAD_MAX_Y - TRACKPAD_MIN_Y) / (TRACKPAD_DIMENSION_Y / 100))
#define TRACKPAD2_DIMENSION_X (float)16000
#define TRACKPAD2_MIN_X -3678
#define TRACKPAD2_MAX_X 3934
#define TRACKPAD2_RES_X \
((TRACKPAD2_MAX_X - TRACKPAD2_MIN_X) / (TRACKPAD2_DIMENSION_X / 100))
#define TRACKPAD2_DIMENSION_Y (float)11490
#define TRACKPAD2_MIN_Y -2478
#define TRACKPAD2_MAX_Y 2587
#define TRACKPAD2_RES_Y \
((TRACKPAD2_MAX_Y - TRACKPAD2_MIN_Y) / (TRACKPAD2_DIMENSION_Y / 100))
/**
* struct magicmouse_sc - Tracks Magic Mouse-specific data.
* @input: Input device through which we report events.
* @quirks: Currently unused.
* @ntouches: Number of touches in most recent touch report.
* @scroll_accel: Number of consecutive scroll motions.
* @scroll_jiffies: Time of last scroll motion.
* @touches: Most recent data for a touch, indexed by tracking ID.
* @tracking_ids: Mapping of current touch input data to @touches.
*/
struct magicmouse_sc {
struct input_dev *input;
unsigned long quirks;
int ntouches;
int scroll_accel;
unsigned long scroll_jiffies;
struct {
short x;
short y;
short scroll_x;
short scroll_y;
short scroll_x_hr;
short scroll_y_hr;
u8 size;
bool scroll_x_active;
bool scroll_y_active;
} touches[16];
int tracking_ids[16];
struct hid_device *hdev;
struct delayed_work work;
struct timer_list battery_timer;
};
static int magicmouse_firm_touch(struct magicmouse_sc *msc)
{
int touch = -1;
int ii;
/* If there is only one "firm" touch, set touch to its
* tracking ID.
*/
for (ii = 0; ii < msc->ntouches; ii++) {
int idx = msc->tracking_ids[ii];
if (msc->touches[idx].size < 8) {
/* Ignore this touch. */
} else if (touch >= 0) {
touch = -1;
break;
} else {
touch = idx;
}
}
return touch;
}
static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state)
{
int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 |
test_bit(BTN_RIGHT, msc->input->key) << 1 |
test_bit(BTN_MIDDLE, msc->input->key) << 2;
if (emulate_3button) {
int id;
/* If some button was pressed before, keep it held
* down. Otherwise, if there's exactly one firm
* touch, use that to override the mouse's guess.
*/
if (state == 0) {
/* The button was released. */
} else if (last_state != 0) {
state = last_state;
} else if ((id = magicmouse_firm_touch(msc)) >= 0) {
int x = msc->touches[id].x;
if (x < middle_button_start)
state = 1;
else if (x > middle_button_stop)
state = 2;
else
state = 4;
} /* else: we keep the mouse's guess */
input_report_key(msc->input, BTN_MIDDLE, state & 4);
}
input_report_key(msc->input, BTN_LEFT, state & 1);
input_report_key(msc->input, BTN_RIGHT, state & 2);
if (state != last_state)
msc->scroll_accel = SCROLL_ACCEL_DEFAULT;
}
static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata)
{
struct input_dev *input = msc->input;
int id, x, y, size, orientation, touch_major, touch_minor, state, down;
int pressure = 0;
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
size = tdata[5] & 0x3f;
orientation = (tdata[6] >> 2) - 32;
touch_major = tdata[3];
touch_minor = tdata[4];
state = tdata[7] & TOUCH_STATE_MASK;
down = state != TOUCH_STATE_NONE;
} else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
id = tdata[8] & 0xf;
x = (tdata[1] << 27 | tdata[0] << 19) >> 19;
y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19);
size = tdata[6];
orientation = (tdata[8] >> 5) - 4;
touch_major = tdata[4];
touch_minor = tdata[5];
pressure = tdata[7];
state = tdata[3] & 0xC0;
down = state == 0x80;
} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
id = (tdata[7] << 2 | tdata[6] >> 6) & 0xf;
x = (tdata[1] << 27 | tdata[0] << 19) >> 19;
y = -((tdata[3] << 30 | tdata[2] << 22 | tdata[1] << 14) >> 19);
size = tdata[6] & 0x3f;
orientation = (tdata[7] >> 2) - 32;
touch_major = tdata[4];
touch_minor = tdata[5];
state = tdata[8] & TOUCH_STATE_MASK;
down = state != TOUCH_STATE_NONE;
}
/* Store tracking ID and other fields. */
msc->tracking_ids[raw_id] = id;
msc->touches[id].x = x;
msc->touches[id].y = y;
msc->touches[id].size = size;
/* If requested, emulate a scroll wheel by detecting small
* vertical touch motions.
*/
if (emulate_scroll_wheel && (input->id.product !=
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)) {
unsigned long now = jiffies;
int step_x = msc->touches[id].scroll_x - x;
int step_y = msc->touches[id].scroll_y - y;
int step_hr =
max_t(int,
((64 - (int)scroll_speed) * msc->scroll_accel) /
SCROLL_HR_STEPS,
1);
int step_x_hr = msc->touches[id].scroll_x_hr - x;
int step_y_hr = msc->touches[id].scroll_y_hr - y;
/* Calculate and apply the scroll motion. */
switch (state) {
case TOUCH_STATE_START:
msc->touches[id].scroll_x = x;
msc->touches[id].scroll_y = y;
msc->touches[id].scroll_x_hr = x;
msc->touches[id].scroll_y_hr = y;
msc->touches[id].scroll_x_active = false;
msc->touches[id].scroll_y_active = false;
/* Reset acceleration after half a second. */
if (scroll_acceleration && time_before(now,
msc->scroll_jiffies + HZ / 2))
msc->scroll_accel = max_t(int,
msc->scroll_accel - 1, 1);
else
msc->scroll_accel = SCROLL_ACCEL_DEFAULT;
break;
case TOUCH_STATE_DRAG:
step_x /= (64 - (int)scroll_speed) * msc->scroll_accel;
if (step_x != 0) {
msc->touches[id].scroll_x -= step_x *
(64 - scroll_speed) * msc->scroll_accel;
msc->scroll_jiffies = now;
input_report_rel(input, REL_HWHEEL, -step_x);
}
step_y /= (64 - (int)scroll_speed) * msc->scroll_accel;
if (step_y != 0) {
msc->touches[id].scroll_y -= step_y *
(64 - scroll_speed) * msc->scroll_accel;
msc->scroll_jiffies = now;
input_report_rel(input, REL_WHEEL, step_y);
}
if (!msc->touches[id].scroll_x_active &&
abs(step_x_hr) > SCROLL_HR_THRESHOLD) {
msc->touches[id].scroll_x_active = true;
msc->touches[id].scroll_x_hr = x;
step_x_hr = 0;
}
step_x_hr /= step_hr;
if (step_x_hr != 0 &&
msc->touches[id].scroll_x_active) {
msc->touches[id].scroll_x_hr -= step_x_hr *
step_hr;
input_report_rel(input,
REL_HWHEEL_HI_RES,
-step_x_hr * SCROLL_HR_MULT);
}
if (!msc->touches[id].scroll_y_active &&
abs(step_y_hr) > SCROLL_HR_THRESHOLD) {
msc->touches[id].scroll_y_active = true;
msc->touches[id].scroll_y_hr = y;
step_y_hr = 0;
}
step_y_hr /= step_hr;
if (step_y_hr != 0 &&
msc->touches[id].scroll_y_active) {
msc->touches[id].scroll_y_hr -= step_y_hr *
step_hr;
input_report_rel(input,
REL_WHEEL_HI_RES,
step_y_hr * SCROLL_HR_MULT);
}
break;
}
}
if (down)
msc->ntouches++;
input_mt_slot(input, id);
input_mt_report_slot_state(input, MT_TOOL_FINGER, down);
/* Generate the input events for this touch. */
if (down) {
input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major << 2);
input_report_abs(input, ABS_MT_TOUCH_MINOR, touch_minor << 2);
input_report_abs(input, ABS_MT_ORIENTATION, -orientation);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)
input_report_abs(input, ABS_MT_PRESSURE, pressure);
if (report_undeciphered) {
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
input_event(input, EV_MSC, MSC_RAW, tdata[7]);
else if (input->id.product !=
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)
input_event(input, EV_MSC, MSC_RAW, tdata[8]);
}
}
}
static int magicmouse_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
struct input_dev *input = msc->input;
int x = 0, y = 0, ii, clicks = 0, npoints;
switch (data[0]) {
case TRACKPAD_REPORT_ID:
case TRACKPAD2_BT_REPORT_ID:
/* Expect four bytes of prefix, and N*9 bytes of touch data. */
if (size < 4 || ((size - 4) % 9) != 0)
return 0;
npoints = (size - 4) / 9;
if (npoints > 15) {
hid_warn(hdev, "invalid size value (%d) for TRACKPAD_REPORT_ID\n",
size);
return 0;
}
msc->ntouches = 0;
for (ii = 0; ii < npoints; ii++)
magicmouse_emit_touch(msc, ii, data + ii * 9 + 4);
clicks = data[1];
/* The following bits provide a device specific timestamp. They
* are unused here.
*
* ts = data[1] >> 6 | data[2] << 2 | data[3] << 10;
*/
break;
case TRACKPAD2_USB_REPORT_ID:
/* Expect twelve bytes of prefix and N*9 bytes of touch data. */
if (size < 12 || ((size - 12) % 9) != 0)
return 0;
npoints = (size - 12) / 9;
if (npoints > 15) {
hid_warn(hdev, "invalid size value (%d) for TRACKPAD2_USB_REPORT_ID\n",
size);
return 0;
}
msc->ntouches = 0;
for (ii = 0; ii < npoints; ii++)
magicmouse_emit_touch(msc, ii, data + ii * 9 + 12);
clicks = data[1];
break;
case MOUSE_REPORT_ID:
/* Expect six bytes of prefix, and N*8 bytes of touch data. */
if (size < 6 || ((size - 6) % 8) != 0)
return 0;
npoints = (size - 6) / 8;
if (npoints > 15) {
hid_warn(hdev, "invalid size value (%d) for MOUSE_REPORT_ID\n",
size);
return 0;
}
msc->ntouches = 0;
for (ii = 0; ii < npoints; ii++)
magicmouse_emit_touch(msc, ii, data + ii * 8 + 6);
/* When emulating three-button mode, it is important
* to have the current touch information before
* generating a click event.
*/
x = (int)(((data[3] & 0x0c) << 28) | (data[1] << 22)) >> 22;
y = (int)(((data[3] & 0x30) << 26) | (data[2] << 22)) >> 22;
clicks = data[3];
/* The following bits provide a device specific timestamp. They
* are unused here.
*
* ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
*/
break;
case MOUSE2_REPORT_ID:
/* Size is either 8 or (14 + 8 * N) */
if (size != 8 && (size < 14 || (size - 14) % 8 != 0))
return 0;
npoints = (size - 14) / 8;
if (npoints > 15) {
hid_warn(hdev, "invalid size value (%d) for MOUSE2_REPORT_ID\n",
size);
return 0;
}
msc->ntouches = 0;
for (ii = 0; ii < npoints; ii++)
magicmouse_emit_touch(msc, ii, data + ii * 8 + 14);
/* When emulating three-button mode, it is important
* to have the current touch information before
* generating a click event.
*/
x = (int)((data[3] << 24) | (data[2] << 16)) >> 16;
y = (int)((data[5] << 24) | (data[4] << 16)) >> 16;
clicks = data[1];
/* The following bits provide a device specific timestamp. They
* are unused here.
*
* ts = data[11] >> 6 | data[12] << 2 | data[13] << 10;
*/
break;
case DOUBLE_REPORT_ID:
/* Sometimes the trackpad sends two touch reports in one
* packet.
*/
magicmouse_raw_event(hdev, report, data + 2, data[1]);
magicmouse_raw_event(hdev, report, data + 2 + data[1],
size - 2 - data[1]);
return 0;
default:
return 0;
}
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
magicmouse_emit_buttons(msc, clicks & 3);
input_report_rel(input, REL_X, x);
input_report_rel(input, REL_Y, y);
} else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
input_mt_sync_frame(input);
input_report_key(input, BTN_MOUSE, clicks & 1);
} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
input_report_key(input, BTN_MOUSE, clicks & 1);
input_mt_report_pointer_emulation(input, true);
}
input_sync(input);
return 1;
}
static int magicmouse_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
if (msc->input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 &&
field->report->id == MOUSE2_REPORT_ID) {
/*
* magic_mouse_raw_event has done all the work. Skip hidinput.
*
* Specifically, hidinput may modify BTN_LEFT and BTN_RIGHT,
* breaking emulate_3button.
*/
return 1;
}
return 0;
}
static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
{
int error;
int mt_flags = 0;
__set_bit(EV_KEY, input->evbit);
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
__set_bit(BTN_LEFT, input->keybit);
__set_bit(BTN_RIGHT, input->keybit);
if (emulate_3button)
__set_bit(BTN_MIDDLE, input->keybit);
__set_bit(EV_REL, input->evbit);
__set_bit(REL_X, input->relbit);
__set_bit(REL_Y, input->relbit);
if (emulate_scroll_wheel) {
__set_bit(REL_WHEEL, input->relbit);
__set_bit(REL_HWHEEL, input->relbit);
__set_bit(REL_WHEEL_HI_RES, input->relbit);
__set_bit(REL_HWHEEL_HI_RES, input->relbit);
}
} else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
/* If the trackpad has been connected to a Mac, the name is
* automatically personalized, e.g., "José Expósito's Trackpad".
* When connected through Bluetooth, the personalized name is
* reported, however, when connected through USB the generic
* name is reported.
* Set the device name to ensure the same driver settings get
* loaded, whether connected through bluetooth or USB.
*/
if (hdev->vendor == BT_VENDOR_ID_APPLE) {
if (input->id.version == TRACKPAD2_2021_BT_VERSION)
input->name = "Apple Inc. Magic Trackpad";
else
input->name = "Apple Inc. Magic Trackpad 2";
} else { /* USB_VENDOR_ID_APPLE */
input->name = hdev->name;
}
__clear_bit(EV_MSC, input->evbit);
__clear_bit(BTN_0, input->keybit);
__clear_bit(BTN_RIGHT, input->keybit);
__clear_bit(BTN_MIDDLE, input->keybit);
__set_bit(BTN_MOUSE, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
__set_bit(BTN_TOOL_FINGER, input->keybit);
mt_flags = INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
INPUT_MT_TRACK;
} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
/* input->keybit is initialized with incorrect button info
* for Magic Trackpad. There really is only one physical
* button (BTN_LEFT == BTN_MOUSE). Make sure we don't
* advertise buttons that don't exist...
*/
__clear_bit(BTN_RIGHT, input->keybit);
__clear_bit(BTN_MIDDLE, input->keybit);
__set_bit(BTN_MOUSE, input->keybit);
__set_bit(BTN_TOOL_FINGER, input->keybit);
__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
__set_bit(BTN_TOOL_QUADTAP, input->keybit);
__set_bit(BTN_TOOL_QUINTTAP, input->keybit);
__set_bit(BTN_TOUCH, input->keybit);
__set_bit(INPUT_PROP_POINTER, input->propbit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
}
__set_bit(EV_ABS, input->evbit);
error = input_mt_init_slots(input, 16, mt_flags);
if (error)
return error;
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255 << 2,
4, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255 << 2,
4, 0);
/* Note: Touch Y position from the device is inverted relative
* to how pointer motion is reported (and relative to how USB
* HID recommends the coordinates work). This driver keeps
* the origin at the same position, and just uses the additive
* inverse of the reported Y.
*/
if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
MOUSE_MIN_X, MOUSE_MAX_X, 4, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
MOUSE_MIN_Y, MOUSE_MAX_Y, 4, 0);
input_abs_set_res(input, ABS_MT_POSITION_X,
MOUSE_RES_X);
input_abs_set_res(input, ABS_MT_POSITION_Y,
MOUSE_RES_Y);
} else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 253, 0, 0);
input_set_abs_params(input, ABS_PRESSURE, 0, 253, 0, 0);
input_set_abs_params(input, ABS_MT_ORIENTATION, -3, 4, 0, 0);
input_set_abs_params(input, ABS_X, TRACKPAD2_MIN_X,
TRACKPAD2_MAX_X, 0, 0);
input_set_abs_params(input, ABS_Y, TRACKPAD2_MIN_Y,
TRACKPAD2_MAX_Y, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
TRACKPAD2_MIN_X, TRACKPAD2_MAX_X, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
TRACKPAD2_MIN_Y, TRACKPAD2_MAX_Y, 0, 0);
input_abs_set_res(input, ABS_X, TRACKPAD2_RES_X);
input_abs_set_res(input, ABS_Y, TRACKPAD2_RES_Y);
input_abs_set_res(input, ABS_MT_POSITION_X, TRACKPAD2_RES_X);
input_abs_set_res(input, ABS_MT_POSITION_Y, TRACKPAD2_RES_Y);
} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0);
input_set_abs_params(input, ABS_X, TRACKPAD_MIN_X,
TRACKPAD_MAX_X, 4, 0);
input_set_abs_params(input, ABS_Y, TRACKPAD_MIN_Y,
TRACKPAD_MAX_Y, 4, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
TRACKPAD_MIN_X, TRACKPAD_MAX_X, 4, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
TRACKPAD_MIN_Y, TRACKPAD_MAX_Y, 4, 0);
input_abs_set_res(input, ABS_X, TRACKPAD_RES_X);
input_abs_set_res(input, ABS_Y, TRACKPAD_RES_Y);
input_abs_set_res(input, ABS_MT_POSITION_X,
TRACKPAD_RES_X);
input_abs_set_res(input, ABS_MT_POSITION_Y,
TRACKPAD_RES_Y);
}
input_set_events_per_packet(input, 60);
if (report_undeciphered &&
input->id.product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
__set_bit(EV_MSC, input->evbit);
__set_bit(MSC_RAW, input->mscbit);
}
/*
* hid-input may mark device as using autorepeat, but neither
* the trackpad, nor the mouse actually want it.
*/
__clear_bit(EV_REP, input->evbit);
return 0;
}
static int magicmouse_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
if (!msc->input)
msc->input = hi->input;
/* Magic Trackpad does not give relative data after switching to MT */
if ((hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD ||
hi->input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) &&
field->flags & HID_MAIN_ITEM_RELATIVE)
return -1;
return 0;
}
static int magicmouse_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
int ret;
ret = magicmouse_setup_input(msc->input, hdev);
if (ret) {
hid_err(hdev, "magicmouse setup input failed (%d)\n", ret);
/* clean msc->input to notify probe() of the failure */
msc->input = NULL;
return ret;
}
return 0;
}
static int magicmouse_enable_multitouch(struct hid_device *hdev)
{
const u8 *feature;
const u8 feature_mt[] = { 0xD7, 0x01 };
const u8 feature_mt_mouse2[] = { 0xF1, 0x02, 0x01 };
const u8 feature_mt_trackpad2_usb[] = { 0x02, 0x01 };
const u8 feature_mt_trackpad2_bt[] = { 0xF1, 0x02, 0x01 };
u8 *buf;
int ret;
int feature_size;
if (hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
if (hdev->vendor == BT_VENDOR_ID_APPLE) {
feature_size = sizeof(feature_mt_trackpad2_bt);
feature = feature_mt_trackpad2_bt;
} else { /* USB_VENDOR_ID_APPLE */
feature_size = sizeof(feature_mt_trackpad2_usb);
feature = feature_mt_trackpad2_usb;
}
} else if (hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
feature_size = sizeof(feature_mt_mouse2);
feature = feature_mt_mouse2;
} else {
feature_size = sizeof(feature_mt);
feature = feature_mt;
}
buf = kmemdup(feature, feature_size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, buf[0], buf, feature_size,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(buf);
return ret;
}
static void magicmouse_enable_mt_work(struct work_struct *work)
{
struct magicmouse_sc *msc =
container_of(work, struct magicmouse_sc, work.work);
int ret;
ret = magicmouse_enable_multitouch(msc->hdev);
if (ret < 0)
hid_err(msc->hdev, "unable to request touch data (%d)\n", ret);
}
static int magicmouse_fetch_battery(struct hid_device *hdev)
{
#ifdef CONFIG_HID_BATTERY_STRENGTH
struct hid_report_enum *report_enum;
struct hid_report *report;
if (!hdev->battery || hdev->vendor != USB_VENDOR_ID_APPLE ||
(hdev->product != USB_DEVICE_ID_APPLE_MAGICMOUSE2 &&
hdev->product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2))
return -1;
report_enum = &hdev->report_enum[hdev->battery_report_type];
report = report_enum->report_id_hash[hdev->battery_report_id];
if (!report || report->maxfield < 1)
return -1;
if (hdev->battery_capacity == hdev->battery_max)
return -1;
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
return 0;
#else
return -1;
#endif
}
static void magicmouse_battery_timer_tick(struct timer_list *t)
{
struct magicmouse_sc *msc = from_timer(msc, t, battery_timer);
struct hid_device *hdev = msc->hdev;
if (magicmouse_fetch_battery(hdev) == 0) {
mod_timer(&msc->battery_timer,
jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS));
}
}
static int magicmouse_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct magicmouse_sc *msc;
struct hid_report *report;
int ret;
msc = devm_kzalloc(&hdev->dev, sizeof(*msc), GFP_KERNEL);
if (msc == NULL) {
hid_err(hdev, "can't alloc magicmouse descriptor\n");
return -ENOMEM;
}
msc->scroll_accel = SCROLL_ACCEL_DEFAULT;
msc->hdev = hdev;
INIT_DEFERRABLE_WORK(&msc->work, magicmouse_enable_mt_work);
msc->quirks = id->driver_data;
hid_set_drvdata(hdev, msc);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "magicmouse hid parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "magicmouse hw start failed\n");
return ret;
}
timer_setup(&msc->battery_timer, magicmouse_battery_timer_tick, 0);
mod_timer(&msc->battery_timer,
jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS));
magicmouse_fetch_battery(hdev);
if (id->vendor == USB_VENDOR_ID_APPLE &&
(id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 ||
(id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 && hdev->type != HID_TYPE_USBMOUSE)))
return 0;
if (!msc->input) {
hid_err(hdev, "magicmouse input not registered\n");
ret = -ENOMEM;
goto err_stop_hw;
}
if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
MOUSE_REPORT_ID, 0);
else if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
report = hid_register_report(hdev, HID_INPUT_REPORT,
MOUSE2_REPORT_ID, 0);
else if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
if (id->vendor == BT_VENDOR_ID_APPLE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
TRACKPAD2_BT_REPORT_ID, 0);
else /* USB_VENDOR_ID_APPLE */
report = hid_register_report(hdev, HID_INPUT_REPORT,
TRACKPAD2_USB_REPORT_ID, 0);
} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
report = hid_register_report(hdev, HID_INPUT_REPORT,
TRACKPAD_REPORT_ID, 0);
report = hid_register_report(hdev, HID_INPUT_REPORT,
DOUBLE_REPORT_ID, 0);
}
if (!report) {
hid_err(hdev, "unable to register touch report\n");
ret = -ENOMEM;
goto err_stop_hw;
}
report->size = 6;
/*
* Some devices repond with 'invalid report id' when feature
* report switching it into multitouch mode is sent to it.
*
* This results in -EIO from the _raw low-level transport callback,
* but there seems to be no other way of switching the mode.
* Thus the super-ugly hacky success check below.
*/
ret = magicmouse_enable_multitouch(hdev);
if (ret != -EIO && ret < 0) {
hid_err(hdev, "unable to request touch data (%d)\n", ret);
goto err_stop_hw;
}
if (ret == -EIO && id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
schedule_delayed_work(&msc->work, msecs_to_jiffies(500));
}
return 0;
err_stop_hw:
del_timer_sync(&msc->battery_timer);
hid_hw_stop(hdev);
return ret;
}
static void magicmouse_remove(struct hid_device *hdev)
{
struct magicmouse_sc *msc = hid_get_drvdata(hdev);
if (msc) {
cancel_delayed_work_sync(&msc->work);
del_timer_sync(&msc->battery_timer);
}
hid_hw_stop(hdev);
}
static __u8 *magicmouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
/*
* Change the usage from:
* 0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1) 0
* 0x09, 0x0b, // Usage (Vendor Usage 0x0b) 3
* To:
* 0x05, 0x01, // Usage Page (Generic Desktop) 0
* 0x09, 0x02, // Usage (Mouse) 2
*/
if (hdev->vendor == USB_VENDOR_ID_APPLE &&
(hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 ||
hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) &&
*rsize == 83 && rdesc[46] == 0x84 && rdesc[58] == 0x85) {
hid_info(hdev,
"fixing up magicmouse battery report descriptor\n");
*rsize = *rsize - 1;
rdesc = kmemdup(rdesc + 1, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
rdesc[0] = 0x05;
rdesc[1] = 0x01;
rdesc[2] = 0x09;
rdesc[3] = 0x02;
}
return rdesc;
}
static const struct hid_device_id magic_mice[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2), .driver_data = 0 },
{ }
};
MODULE_DEVICE_TABLE(hid, magic_mice);
static struct hid_driver magicmouse_driver = {
.name = "magicmouse",
.id_table = magic_mice,
.probe = magicmouse_probe,
.remove = magicmouse_remove,
.report_fixup = magicmouse_report_fixup,
.raw_event = magicmouse_raw_event,
.event = magicmouse_event,
.input_mapping = magicmouse_input_mapping,
.input_configured = magicmouse_input_configured,
};
module_hid_driver(magicmouse_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-magicmouse.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Savu driver for Linux
*
* Copyright (c) 2012 Stefan Achatz <[email protected]>
*/
/*
*/
/* Roccat Savu is a gamer mouse with macro keys that can be configured in
* 5 profiles.
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-savu.h"
ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x4, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x5, 0x03);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(general, 0x6, 0x10);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(buttons, 0x7, 0x2f);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x8, 0x0823);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x9, 0x08);
ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0xc, 0x04);
static struct bin_attribute *savu_bin_attrs[] = {
&bin_attr_control,
&bin_attr_profile,
&bin_attr_general,
&bin_attr_buttons,
&bin_attr_macro,
&bin_attr_info,
&bin_attr_sensor,
NULL,
};
static const struct attribute_group savu_group = {
.bin_attrs = savu_bin_attrs,
};
static const struct attribute_group *savu_groups[] = {
&savu_group,
NULL,
};
static const struct class savu_class = {
.name = "savu",
.dev_groups = savu_groups,
};
static int savu_init_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *usb_dev = interface_to_usbdev(intf);
struct roccat_common2_device *savu;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE) {
hid_set_drvdata(hdev, NULL);
return 0;
}
savu = kzalloc(sizeof(*savu), GFP_KERNEL);
if (!savu) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, savu);
retval = roccat_common2_device_init_struct(usb_dev, savu);
if (retval) {
hid_err(hdev, "couldn't init Savu device\n");
goto exit_free;
}
retval = roccat_connect(&savu_class, hdev,
sizeof(struct savu_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
savu->chrdev_minor = retval;
savu->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(savu);
return retval;
}
static void savu_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *savu;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return;
savu = hid_get_drvdata(hdev);
if (savu->roccat_claimed)
roccat_disconnect(savu->chrdev_minor);
kfree(savu);
}
static int savu_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int retval;
if (!hid_is_usb(hdev))
return -EINVAL;
retval = hid_parse(hdev);
if (retval) {
hid_err(hdev, "parse failed\n");
goto exit;
}
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (retval) {
hid_err(hdev, "hw start failed\n");
goto exit;
}
retval = savu_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install mouse\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void savu_remove(struct hid_device *hdev)
{
savu_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void savu_report_to_chrdev(struct roccat_common2_device const *savu,
u8 const *data)
{
struct savu_roccat_report roccat_report;
struct savu_mouse_report_special const *special_report;
if (data[0] != SAVU_MOUSE_REPORT_NUMBER_SPECIAL)
return;
special_report = (struct savu_mouse_report_special const *)data;
roccat_report.type = special_report->type;
roccat_report.data[0] = special_report->data[0];
roccat_report.data[1] = special_report->data[1];
roccat_report_event(savu->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int savu_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct roccat_common2_device *savu = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (savu == NULL)
return 0;
if (savu->roccat_claimed)
savu_report_to_chrdev(savu, data);
return 0;
}
static const struct hid_device_id savu_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
{ }
};
MODULE_DEVICE_TABLE(hid, savu_devices);
static struct hid_driver savu_driver = {
.name = "savu",
.id_table = savu_devices,
.probe = savu_probe,
.remove = savu_remove,
.raw_event = savu_raw_event
};
static int __init savu_init(void)
{
int retval;
retval = class_register(&savu_class);
if (retval)
return retval;
retval = hid_register_driver(&savu_driver);
if (retval)
class_unregister(&savu_class);
return retval;
}
static void __exit savu_exit(void)
{
hid_unregister_driver(&savu_driver);
class_unregister(&savu_class);
}
module_init(savu_init);
module_exit(savu_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Savu driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-savu.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for TopSeed Cyberlink remote
*
* Copyright (c) 2008 Lev Babiev
* based on hid-cherry driver
*
* Modified to also support BTC "Emprex 3009URF III Vista MCE Remote" by
* Wayne Thomas 2010.
*
* Modified to support Conceptronic CLLRCMCE by
* Kees Bakker 2010.
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define ts_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x00c: ts_map_key_clear(KEY_WLAN); break;
case 0x00d: ts_map_key_clear(KEY_MEDIA); break;
case 0x010: ts_map_key_clear(KEY_ZOOM); break;
case 0x024: ts_map_key_clear(KEY_MENU); break;
case 0x025: ts_map_key_clear(KEY_TV); break;
case 0x027: ts_map_key_clear(KEY_MODE); break;
case 0x031: ts_map_key_clear(KEY_AUDIO); break;
case 0x032: ts_map_key_clear(KEY_TEXT); break;
case 0x033: ts_map_key_clear(KEY_CHANNEL); break;
case 0x047: ts_map_key_clear(KEY_MP3); break;
case 0x048: ts_map_key_clear(KEY_TV2); break;
case 0x049: ts_map_key_clear(KEY_CAMERA); break;
case 0x04a: ts_map_key_clear(KEY_VIDEO); break;
case 0x04b: ts_map_key_clear(KEY_ANGLE); break;
case 0x04c: ts_map_key_clear(KEY_LANGUAGE); break;
case 0x04d: ts_map_key_clear(KEY_SUBTITLE); break;
case 0x050: ts_map_key_clear(KEY_RADIO); break;
case 0x05a: ts_map_key_clear(KEY_TEXT); break;
case 0x05b: ts_map_key_clear(KEY_RED); break;
case 0x05c: ts_map_key_clear(KEY_GREEN); break;
case 0x05d: ts_map_key_clear(KEY_YELLOW); break;
case 0x05e: ts_map_key_clear(KEY_BLUE); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id ts_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A) },
{ }
};
MODULE_DEVICE_TABLE(hid, ts_devices);
static struct hid_driver ts_driver = {
.name = "topseed",
.id_table = ts_devices,
.input_mapping = ts_input_mapping,
};
module_hid_driver(ts_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-topseed.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID quirks support for Linux
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2007 Paul Walmsley
*/
/*
*/
#include <linux/hid.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/input/elan-i2c-ids.h>
#include "hid-ids.h"
/*
* Alphabetically sorted by vendor then product.
*/
static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016), HID_QUIRK_FULLSPEED_INTERVAL },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_AMI, USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS1758), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS682), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS692), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_COMBATSTICK), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FIGHTERSTICK), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_ECLIPSE_YOKE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_FLIGHT_SIM_YOKE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_PEDALS), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_PRO_THROTTLE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB_RAPIDFIRE), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70RGB), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70RGB_RAPIDFIRE), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70R), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K95RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_M65RGB), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_GLAIVE_RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_STRAFE), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_2NES2SNES), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_4NES4SNES), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_REDRAGON_SEYMUR2), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER), HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH_2968), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_FUTABA, USB_DEVICE_ID_LED_DISPLAY), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_SAT_ADAPTOR), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD), HID_QUIRK_MULTI_INPUT },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_GAMEVICE, USB_DEVICE_ID_GAMEVICE_GV186),
HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMEVICE, USB_DEVICE_ID_GAMEVICE_KISHI),
HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A293), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A), HID_QUIRK_ALWAYS_POLL },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_ELITE_PRESENTER_MOUSE_464A), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_094A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0941), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0641), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_1f4a), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6680), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_INNOMEDIA, USB_DEVICE_ID_INNEX_GENESIS_ATARI), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE_ID2), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M406), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M506), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M406W), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_340), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_M508WX), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_M508X), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M406XE), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_T609A), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_602E), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6093), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C007), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KEYBOARD_G710_PLUS), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C01A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C05A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOUSE_C06A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MCS, USB_DEVICE_ID_MCS_GAMEPADBLOCK), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_MOUSE_0783), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PIXART_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE3_COVER), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE_PRO_2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_MULTIPLE_1781, USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_NATSU, USB_DEVICE_ID_NATSU_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_NEXTWINDOW, USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN), HID_QUIRK_MULTI_INPUT},
{ HID_USB_DEVICE(USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK), HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1610), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_1640), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_PI_ENGINEERING, USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL), HID_QUIRK_HIDINPUT_FORCE },
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4D22), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4E2A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D65), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3003), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_RETROUSB, USB_DEVICE_ID_RETROUSB_SNES_RETROPAD), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_RETROUSB, USB_DEVICE_ID_RETROUSB_SNES_RETROPORT), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_2), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_PRO), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X65), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS1030_TOUCH), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS817_TOUCH), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS_TS), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DELL_K12A), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DELL_K15A), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_WP5540), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_GROUP_AUDIO), HID_QUIRK_NOGET },
{ 0 }
};
/*
* A list of devices for which there is a specialized driver on HID bus.
*
* Please note that for multitouch devices (driven by hid-multitouch driver),
* there is a proper autodetection and autoloading in place (based on presence
* of HID_DG_CONTACTID), so those devices don't need to be added to this list,
* as we are doing the right thing in hid_scan_usage().
*
* Autodetection for (USB) HID sensor hubs exists too. If a collection of type
* physical is found inside a usage page of type sensor, hid-sensor-hub will be
* used as a driver. See hid_scan_report().
*/
static const struct hid_device_id hid_have_special_driver[] = {
#if IS_ENABLED(CONFIG_HID_A4TECH)
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_NB_95) },
#endif
#if IS_ENABLED(CONFIG_HID_ACCUTOUCH)
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_ACCUTOUCH_2216) },
#endif
#if IS_ENABLED(CONFIG_HID_ACRUX)
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
#endif
#if IS_ENABLED(CONFIG_HID_ALPS)
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
#endif
#if IS_ENABLED(CONFIG_HID_APPLE)
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J140K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J132) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J680) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J213) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J214K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J223) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J230K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J152F) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_BACKLIGHT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) },
#endif
#if IS_ENABLED(CONFIG_HID_APPLEIR)
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
#endif
#if IS_ENABLED(CONFIG_HID_ASUS)
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD) },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD) },
#endif
#if IS_ENABLED(CONFIG_HID_AUREAL)
{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
#endif
#if IS_ENABLED(CONFIG_HID_BELKIN)
{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
#endif
#if IS_ENABLED(CONFIG_HID_BETOP_FF)
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
#endif
#if IS_ENABLED(CONFIG_HID_CHERRY)
{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
#endif
#if IS_ENABLED(CONFIG_HID_CHICONY)
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
#endif
#if IS_ENABLED(CONFIG_HID_CMEDIA)
{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
#endif
#if IS_ENABLED(CONFIG_HID_CORSAIR)
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_GLAIVE_RGB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB) },
#endif
#if IS_ENABLED(CONFIG_HID_CP2112)
{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
#endif
#if IS_ENABLED(CONFIG_HID_CYPRESS)
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
#endif
#if IS_ENABLED(CONFIG_HID_DRAGONRISE)
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
#endif
#if IS_ENABLED(CONFIG_HID_ELAN)
{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER) },
#endif
#if IS_ENABLED(CONFIG_HID_ELECOM)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C) },
#endif
#if IS_ENABLED(CONFIG_HID_ELO)
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
#endif
#if IS_ENABLED(CONFIG_HID_EMS_FF)
{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
#endif
#if IS_ENABLED(CONFIG_HID_EZKEY)
{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
#endif
#if IS_ENABLED(CONFIG_HID_GEMBIRD)
{ HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD, USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) },
#endif
#if IS_ENABLED(CONFIG_HID_GFRM)
{ HID_BLUETOOTH_DEVICE(0x58, 0x2000) },
{ HID_BLUETOOTH_DEVICE(0x471, 0x2210) },
#endif
#if IS_ENABLED(CONFIG_HID_GREENASIA)
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
#endif
#if IS_ENABLED(CONFIG_HID_GT683R)
{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
#endif
#if IS_ENABLED(CONFIG_HID_GYRATION)
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
#endif
#if IS_ENABLED(CONFIG_HID_HOLTEK)
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
#endif
#if IS_ENABLED(CONFIG_HID_ICADE)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
#endif
#if IS_ENABLED(CONFIG_HID_JABRA)
{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, HID_ANY_ID) },
#endif
#if IS_ENABLED(CONFIG_HID_KENSINGTON)
{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
#endif
#if IS_ENABLED(CONFIG_HID_KEYTOUCH)
{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
#endif
#if IS_ENABLED(CONFIG_HID_KYE)
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
#endif
#if IS_ENABLED(CONFIG_HID_LCPOWER)
{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000) },
#endif
#if IS_ENABLED(CONFIG_HID_LENOVO)
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
#endif
#if IS_ENABLED(CONFIG_HID_LOGITECH)
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FG) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
#endif
#if IS_ENABLED(CONFIG_HID_LOGITECH_HIDPP)
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL) },
#endif
#if IS_ENABLED(CONFIG_HID_MAGICMOUSE)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
#endif
#if IS_ENABLED(CONFIG_HID_MAYFLASH)
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3) },
#endif
#if IS_ENABLED(CONFIG_HID_MICROSOFT)
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
#endif
#if IS_ENABLED(CONFIG_HID_MONTEREY)
{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
#endif
#if IS_ENABLED(CONFIG_HID_MULTITOUCH)
{ HID_USB_DEVICE(USB_VENDOR_ID_LG, USB_DEVICE_ID_LG_MELFAS_MT) },
#endif
#if IS_ENABLED(CONFIG_HID_WIIMOTE)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
#endif
#if IS_ENABLED(CONFIG_HID_NTI)
{ HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
#endif
#if IS_ENABLED(CONFIG_HID_NTRIG)
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
#endif
#if IS_ENABLED(CONFIG_HID_ORTEK)
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
#endif
#if IS_ENABLED(CONFIG_HID_PANTHERLORD)
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
#endif
#if IS_ENABLED(CONFIG_HID_PENMOUNT)
{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
#endif
#if IS_ENABLED(CONFIG_HID_PETALYNX)
{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
#endif
#if IS_ENABLED(CONFIG_HID_PICOLCD)
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
#endif
#if IS_ENABLED(CONFIG_HID_PLANTRONICS)
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
#endif
#if IS_ENABLED(CONFIG_HID_PRIMAX)
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
#endif
#if IS_ENABLED(CONFIG_HID_PRODIKEYS)
{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
#endif
#if IS_ENABLED(CONFIG_HID_RETRODE)
{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY, USB_DEVICE_ID_RETRODE2) },
#endif
#if IS_ENABLED(CONFIG_HID_RMI)
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_COVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_REZEL) },
#endif
#if IS_ENABLED(CONFIG_HID_ROCCAT)
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
#endif
#if IS_ENABLED(CONFIG_HID_SAITEK)
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT9) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_MMO7) },
#endif
#if IS_ENABLED(CONFIG_HID_SAMSUNG)
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
#endif
#if IS_ENABLED(CONFIG_HID_SMARTJOYPLUS)
{ HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
#endif
#if IS_ENABLED(CONFIG_HID_SONY)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER) },
#endif
#if IS_ENABLED(CONFIG_HID_SPEEDLINK)
{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
#endif
#if IS_ENABLED(CONFIG_HID_STEELSERIES)
{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
#endif
#if IS_ENABLED(CONFIG_HID_SUNPLUS)
{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
#endif
#if IS_ENABLED(CONFIG_HID_THRUSTMASTER)
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb605) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65d) },
#endif
#if IS_ENABLED(CONFIG_HID_TIVO)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
#endif
#if IS_ENABLED(CONFIG_HID_TOPSEED)
{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
#endif
#if IS_ENABLED(CONFIG_HID_TWINHAN)
{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
#endif
#if IS_ENABLED(CONFIG_HID_UDRAW_PS3)
{ HID_USB_DEVICE(USB_VENDOR_ID_THQ, USB_DEVICE_ID_THQ_PS3_UDRAW) },
#endif
#if IS_ENABLED(CONFIG_HID_XINMO)
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_ARCADE) },
#endif
#if IS_ENABLED(CONFIG_HID_ZEROPLUS)
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
#endif
#if IS_ENABLED(CONFIG_HID_ZYDACRON)
{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
#endif
{ }
};
/* a list of devices that shouldn't be handled by HID core at all */
static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_GN9350E) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERANALYSERCASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CONVERTERCONTROLLERCASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETESTCASSY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454_V2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PETZL, USB_DEVICE_ID_PETZL_HEADLAMP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAI, USB_DEVICE_ID_CYPRESS_HIDCOM) },
#if IS_ENABLED(CONFIG_MOUSE_SYNAPTICS_USB)
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
#endif
{ HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
{ }
};
/*
* hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
*
* There are composite devices for which we want to ignore only a certain
* interface. This is a list of devices for which only the mouse interface will
* be ignored. This allows a dedicated driver to take care of the interface.
*/
static const struct hid_device_id hid_mouse_ignore_list[] = {
/* appletouch driver */
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J140K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J132) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J680) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J213) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J214K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J223) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J230K) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRINGT2_J152F) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
{ }
};
bool hid_ignore(struct hid_device *hdev)
{
int i;
if (hdev->quirks & HID_QUIRK_NO_IGNORE)
return false;
if (hdev->quirks & HID_QUIRK_IGNORE)
return true;
switch (hdev->vendor) {
case USB_VENDOR_ID_CODEMERCS:
/* ignore all Code Mercenaries IOWarrior devices */
if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
return true;
break;
case USB_VENDOR_ID_LOGITECH:
if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
return true;
/*
* The Keene FM transmitter USB device has the same USB ID as
* the Logitech AudioHub Speaker, but it should ignore the hid.
* Check if the name is that of the Keene device.
* For reference: the name of the AudioHub is
* "HOLTEK AudioHub Speaker".
*/
if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
!strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
return true;
break;
case USB_VENDOR_ID_SOUNDGRAPH:
if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
return true;
break;
case USB_VENDOR_ID_HANWANG:
if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
return true;
break;
case USB_VENDOR_ID_JESS:
if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
hdev->type == HID_TYPE_USBNONE)
return true;
break;
case USB_VENDOR_ID_VELLEMAN:
/* These are not HID devices. They are handled by comedi. */
if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
(hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
return true;
break;
case USB_VENDOR_ID_ATMEL_V_USB:
/* Masterkit MA901 usb radio based on Atmel tiny85 chip and
* it has the same USB ID as many Atmel V-USB devices. This
* usb radio is handled by radio-ma901.c driver so we want
* ignore the hid. Check the name, bus, product and ignore
* if we have MA901 usb radio.
*/
if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
hdev->bus == BUS_USB &&
strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
return true;
break;
case USB_VENDOR_ID_ELAN:
/*
* Blacklist of everything that gets handled by the elan_i2c
* input driver. This avoids disabling valid touchpads and
* other ELAN devices.
*/
if ((hdev->product == 0x0401 || hdev->product == 0x0400))
for (i = 0; strlen(elan_acpi_id[i].id); ++i)
if (!strncmp(hdev->name, elan_acpi_id[i].id,
strlen(elan_acpi_id[i].id)))
return true;
break;
}
if (hdev->type == HID_TYPE_USBMOUSE &&
hid_match_id(hdev, hid_mouse_ignore_list))
return true;
return !!hid_match_id(hdev, hid_ignore_list);
}
EXPORT_SYMBOL_GPL(hid_ignore);
/* Dynamic HID quirks list - specified at runtime */
struct quirks_list_struct {
struct hid_device_id hid_bl_item;
struct list_head node;
};
static LIST_HEAD(dquirks_list);
static DEFINE_MUTEX(dquirks_lock);
/* Runtime ("dynamic") quirks manipulation functions */
/**
* hid_exists_dquirk - find any dynamic quirks for a HID device
* @hdev: the HID device to match
*
* Description:
* Scans dquirks_list for a matching dynamic quirk and returns
* the pointer to the relevant struct hid_device_id if found.
* Must be called with a read lock held on dquirks_lock.
*
* Return: NULL if no quirk found, struct hid_device_id * if found.
*/
static struct hid_device_id *hid_exists_dquirk(const struct hid_device *hdev)
{
struct quirks_list_struct *q;
struct hid_device_id *bl_entry = NULL;
list_for_each_entry(q, &dquirks_list, node) {
if (hid_match_one_id(hdev, &q->hid_bl_item)) {
bl_entry = &q->hid_bl_item;
break;
}
}
if (bl_entry != NULL)
dbg_hid("Found dynamic quirk 0x%lx for HID device 0x%04x:0x%04x\n",
bl_entry->driver_data, bl_entry->vendor,
bl_entry->product);
return bl_entry;
}
/**
* hid_modify_dquirk - add/replace a HID quirk
* @id: the HID device to match
* @quirks: the unsigned long quirks value to add/replace
*
* Description:
* If an dynamic quirk exists in memory for this device, replace its
* quirks value with what was provided. Otherwise, add the quirk
* to the dynamic quirks list.
*
* Return: 0 OK, -error on failure.
*/
static int hid_modify_dquirk(const struct hid_device_id *id,
const unsigned long quirks)
{
struct hid_device *hdev;
struct quirks_list_struct *q_new, *q;
int list_edited = 0;
int ret = 0;
hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
if (!hdev)
return -ENOMEM;
q_new = kmalloc(sizeof(struct quirks_list_struct), GFP_KERNEL);
if (!q_new) {
ret = -ENOMEM;
goto out;
}
hdev->bus = q_new->hid_bl_item.bus = id->bus;
hdev->group = q_new->hid_bl_item.group = id->group;
hdev->vendor = q_new->hid_bl_item.vendor = id->vendor;
hdev->product = q_new->hid_bl_item.product = id->product;
q_new->hid_bl_item.driver_data = quirks;
mutex_lock(&dquirks_lock);
list_for_each_entry(q, &dquirks_list, node) {
if (hid_match_one_id(hdev, &q->hid_bl_item)) {
list_replace(&q->node, &q_new->node);
kfree(q);
list_edited = 1;
break;
}
}
if (!list_edited)
list_add_tail(&q_new->node, &dquirks_list);
mutex_unlock(&dquirks_lock);
out:
kfree(hdev);
return ret;
}
/**
* hid_remove_all_dquirks - remove all runtime HID quirks from memory
* @bus: bus to match against. Use HID_BUS_ANY if all need to be removed.
*
* Description:
* Free all memory associated with dynamic quirks - called before
* module unload.
*
*/
static void hid_remove_all_dquirks(__u16 bus)
{
struct quirks_list_struct *q, *temp;
mutex_lock(&dquirks_lock);
list_for_each_entry_safe(q, temp, &dquirks_list, node) {
if (bus == HID_BUS_ANY || bus == q->hid_bl_item.bus) {
list_del(&q->node);
kfree(q);
}
}
mutex_unlock(&dquirks_lock);
}
/**
* hid_quirks_init - apply HID quirks specified at module load time
* @quirks_param: array of quirks strings (vendor:product:quirks)
* @bus: bus type
* @count: number of quirks to check
*/
int hid_quirks_init(char **quirks_param, __u16 bus, int count)
{
struct hid_device_id id = { 0 };
int n = 0, m;
unsigned short int vendor, product;
u32 quirks;
id.bus = bus;
for (; n < count && quirks_param[n]; n++) {
m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
&vendor, &product, &quirks);
id.vendor = (__u16)vendor;
id.product = (__u16)product;
if (m != 3 ||
hid_modify_dquirk(&id, quirks) != 0) {
pr_warn("Could not parse HID quirk module param %s\n",
quirks_param[n]);
}
}
return 0;
}
EXPORT_SYMBOL_GPL(hid_quirks_init);
/**
* hid_quirks_exit - release memory associated with dynamic_quirks
* @bus: a bus to match against
*
* Description:
* Release all memory associated with dynamic quirks for a given bus.
* Called upon module unload.
* Use HID_BUS_ANY to remove all dynamic quirks.
*
* Returns: nothing
*/
void hid_quirks_exit(__u16 bus)
{
hid_remove_all_dquirks(bus);
}
EXPORT_SYMBOL_GPL(hid_quirks_exit);
/**
* hid_gets_squirk - return any static quirks for a HID device
* @hdev: the HID device to match
*
* Description:
* Given a HID device, return a pointer to the quirked hid_device_id entry
* associated with that device.
*
* Return: the quirks.
*/
static unsigned long hid_gets_squirk(const struct hid_device *hdev)
{
const struct hid_device_id *bl_entry;
unsigned long quirks = hdev->initial_quirks;
if (hid_match_id(hdev, hid_ignore_list))
quirks |= HID_QUIRK_IGNORE;
if (hid_match_id(hdev, hid_have_special_driver))
quirks |= HID_QUIRK_HAVE_SPECIAL_DRIVER;
bl_entry = hid_match_id(hdev, hid_quirks);
if (bl_entry != NULL)
quirks |= bl_entry->driver_data;
if (quirks)
dbg_hid("Found squirk 0x%lx for HID device 0x%04x:0x%04x\n",
quirks, hdev->vendor, hdev->product);
return quirks;
}
/**
* hid_lookup_quirk - return any quirks associated with a HID device
* @hdev: the HID device to look for
*
* Description:
* Given a HID device, return any quirks associated with that device.
*
* Return: an unsigned long quirks value.
*/
unsigned long hid_lookup_quirk(const struct hid_device *hdev)
{
unsigned long quirks = 0;
const struct hid_device_id *quirk_entry = NULL;
/* NCR devices must not be queried for reports */
if (hdev->bus == BUS_USB &&
hdev->vendor == USB_VENDOR_ID_NCR &&
hdev->product >= USB_DEVICE_ID_NCR_FIRST &&
hdev->product <= USB_DEVICE_ID_NCR_LAST)
return HID_QUIRK_NO_INIT_REPORTS;
/* These devices must be ignored if version (bcdDevice) is too old */
if (hdev->bus == BUS_USB && hdev->vendor == USB_VENDOR_ID_JABRA) {
switch (hdev->product) {
case USB_DEVICE_ID_JABRA_SPEAK_410:
if (hdev->version < 0x0111)
return HID_QUIRK_IGNORE;
break;
case USB_DEVICE_ID_JABRA_SPEAK_510:
if (hdev->version < 0x0214)
return HID_QUIRK_IGNORE;
break;
}
}
mutex_lock(&dquirks_lock);
quirk_entry = hid_exists_dquirk(hdev);
if (quirk_entry)
quirks = quirk_entry->driver_data;
else
quirks = hid_gets_squirk(hdev);
mutex_unlock(&dquirks_lock);
return quirks;
}
EXPORT_SYMBOL_GPL(hid_lookup_quirk);
| linux-master | drivers/hid/hid-quirks.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Google Fiber TV Box remote controls
*
* Copyright (c) 2014-2015 Google Inc.
*
* Author: Petri Gynther <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include "hid-ids.h"
#define GFRM100 1 /* Google Fiber GFRM100 (Bluetooth classic) */
#define GFRM200 2 /* Google Fiber GFRM200 (Bluetooth LE) */
#define GFRM100_SEARCH_KEY_REPORT_ID 0xF7
#define GFRM100_SEARCH_KEY_DOWN 0x0
#define GFRM100_SEARCH_KEY_AUDIO_DATA 0x1
#define GFRM100_SEARCH_KEY_UP 0x2
static u8 search_key_dn[3] = {0x40, 0x21, 0x02};
static u8 search_key_up[3] = {0x40, 0x00, 0x00};
static int gfrm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
unsigned long hdev_type = (unsigned long) hid_get_drvdata(hdev);
if (hdev_type == GFRM100) {
if (usage->hid == (HID_UP_CONSUMER | 0x4)) {
/* Consumer.0004 -> KEY_INFO */
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_INFO);
return 1;
}
if (usage->hid == (HID_UP_CONSUMER | 0x41)) {
/* Consumer.0041 -> KEY_OK */
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_OK);
return 1;
}
}
return 0;
}
static int gfrm_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
unsigned long hdev_type = (unsigned long) hid_get_drvdata(hdev);
int ret = 0;
if (hdev_type != GFRM100)
return 0;
if (size < 2 || data[0] != GFRM100_SEARCH_KEY_REPORT_ID)
return 0;
/*
* Convert GFRM100 Search key reports into Consumer.0221 (Key.Search)
* reports. Ignore audio data.
*/
switch (data[1]) {
case GFRM100_SEARCH_KEY_DOWN:
ret = hid_report_raw_event(hdev, HID_INPUT_REPORT, search_key_dn,
sizeof(search_key_dn), 1);
break;
case GFRM100_SEARCH_KEY_AUDIO_DATA:
break;
case GFRM100_SEARCH_KEY_UP:
ret = hid_report_raw_event(hdev, HID_INPUT_REPORT, search_key_up,
sizeof(search_key_up), 1);
break;
default:
break;
}
return (ret < 0) ? ret : -1;
}
static int gfrm_input_configured(struct hid_device *hid, struct hid_input *hidinput)
{
/*
* Enable software autorepeat with:
* - repeat delay: 400 msec
* - repeat period: 100 msec
*/
input_enable_softrepeat(hidinput->input, 400, 100);
return 0;
}
static int gfrm_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hid_set_drvdata(hdev, (void *) id->driver_data);
ret = hid_parse(hdev);
if (ret)
goto done;
if (id->driver_data == GFRM100) {
/*
* GFRM100 HID Report Descriptor does not describe the Search
* key reports. Thus, we need to add it manually here, so that
* those reports reach gfrm_raw_event() from hid_input_report().
*/
if (!hid_register_report(hdev, HID_INPUT_REPORT,
GFRM100_SEARCH_KEY_REPORT_ID, 0)) {
ret = -ENOMEM;
goto done;
}
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
done:
return ret;
}
static const struct hid_device_id gfrm_devices[] = {
{ HID_BLUETOOTH_DEVICE(0x58, 0x2000),
.driver_data = GFRM100 },
{ HID_BLUETOOTH_DEVICE(0x471, 0x2210),
.driver_data = GFRM200 },
{ }
};
MODULE_DEVICE_TABLE(hid, gfrm_devices);
static struct hid_driver gfrm_driver = {
.name = "gfrm",
.id_table = gfrm_devices,
.probe = gfrm_probe,
.input_mapping = gfrm_input_mapping,
.raw_event = gfrm_raw_event,
.input_configured = gfrm_input_configured,
};
module_hid_driver(gfrm_driver);
MODULE_AUTHOR("Petri Gynther <[email protected]>");
MODULE_DESCRIPTION("Google Fiber TV Box remote control driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-gfrm.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Asus notebook built-in keyboard.
* Fixes small logical maximum to match usage maximum.
*
* Currently supported devices are:
* EeeBook X205TA
* VivoBook E200HA
*
* Copyright (c) 2016 Yusuke Fujimaki <[email protected]>
*
* This module based on hid-ortek by
* Copyright (c) 2010 Johnathon Harris <[email protected]>
* Copyright (c) 2011 Jiri Kosina
*
* This module has been updated to add support for Asus i2c touchpad.
*
* Copyright (c) 2016 Brendan McGrath <[email protected]>
* Copyright (c) 2016 Victor Vlasenko <[email protected]>
* Copyright (c) 2016 Frederik Wenigwieser <[email protected]>
*/
/*
*/
#include <linux/dmi.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/platform_data/x86/asus-wmi.h>
#include <linux/input/mt.h>
#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
#include <linux/power_supply.h>
#include <linux/leds.h>
#include "hid-ids.h"
MODULE_AUTHOR("Yusuke Fujimaki <[email protected]>");
MODULE_AUTHOR("Brendan McGrath <[email protected]>");
MODULE_AUTHOR("Victor Vlasenko <[email protected]>");
MODULE_AUTHOR("Frederik Wenigwieser <[email protected]>");
MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define T100_TPAD_INTF 2
#define MEDION_E1239T_TPAD_INTF 1
#define E1239T_TP_TOGGLE_REPORT_ID 0x05
#define T100CHI_MOUSE_REPORT_ID 0x06
#define FEATURE_REPORT_ID 0x0d
#define INPUT_REPORT_ID 0x5d
#define FEATURE_KBD_REPORT_ID 0x5a
#define FEATURE_KBD_REPORT_SIZE 16
#define FEATURE_KBD_LED_REPORT_ID1 0x5d
#define FEATURE_KBD_LED_REPORT_ID2 0x5e
#define SUPPORT_KBD_BACKLIGHT BIT(0)
#define MAX_TOUCH_MAJOR 8
#define MAX_PRESSURE 128
#define BTN_LEFT_MASK 0x01
#define CONTACT_TOOL_TYPE_MASK 0x80
#define CONTACT_X_MSB_MASK 0xf0
#define CONTACT_Y_MSB_MASK 0x0f
#define CONTACT_TOUCH_MAJOR_MASK 0x07
#define CONTACT_PRESSURE_MASK 0x7f
#define BATTERY_REPORT_ID (0x03)
#define BATTERY_REPORT_SIZE (1 + 8)
#define BATTERY_LEVEL_MAX ((u8)255)
#define BATTERY_STAT_DISCONNECT (0)
#define BATTERY_STAT_CHARGING (1)
#define BATTERY_STAT_FULL (2)
#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
#define QUIRK_NO_INIT_REPORTS BIT(1)
#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
#define QUIRK_IS_MULTITOUCH BIT(3)
#define QUIRK_NO_CONSUMER_USAGES BIT(4)
#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
#define QUIRK_T100_KEYBOARD BIT(6)
#define QUIRK_T100CHI BIT(7)
#define QUIRK_G752_KEYBOARD BIT(8)
#define QUIRK_T90CHI BIT(9)
#define QUIRK_MEDION_E1239T BIT(10)
#define QUIRK_ROG_NKEY_KEYBOARD BIT(11)
#define QUIRK_ROG_CLAYMORE_II_KEYBOARD BIT(12)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
QUIRK_NO_CONSUMER_USAGES)
#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
QUIRK_SKIP_INPUT_MAPPING | \
QUIRK_IS_MULTITOUCH)
#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
struct asus_kbd_leds {
struct led_classdev cdev;
struct hid_device *hdev;
struct work_struct work;
unsigned int brightness;
spinlock_t lock;
bool removed;
};
struct asus_touchpad_info {
int max_x;
int max_y;
int res_x;
int res_y;
int contact_size;
int max_contacts;
int report_size;
};
struct asus_drvdata {
unsigned long quirks;
struct hid_device *hdev;
struct input_dev *input;
struct input_dev *tp_kbd_input;
struct asus_kbd_leds *kbd_backlight;
const struct asus_touchpad_info *tp;
bool enable_backlight;
struct power_supply *battery;
struct power_supply_desc battery_desc;
int battery_capacity;
int battery_stat;
bool battery_in_query;
unsigned long battery_next_query;
};
static int asus_report_battery(struct asus_drvdata *, u8 *, int);
static const struct asus_touchpad_info asus_i2c_tp = {
.max_x = 2794,
.max_y = 1758,
.contact_size = 5,
.max_contacts = 5,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
static const struct asus_touchpad_info asus_t100ta_tp = {
.max_x = 2240,
.max_y = 1120,
.res_x = 30, /* units/mm */
.res_y = 27, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
static const struct asus_touchpad_info asus_t100ha_tp = {
.max_x = 2640,
.max_y = 1320,
.res_x = 30, /* units/mm */
.res_y = 29, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
static const struct asus_touchpad_info asus_t200ta_tp = {
.max_x = 3120,
.max_y = 1716,
.res_x = 30, /* units/mm */
.res_y = 28, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
static const struct asus_touchpad_info asus_t100chi_tp = {
.max_x = 2640,
.max_y = 1320,
.res_x = 31, /* units/mm */
.res_y = 29, /* units/mm */
.contact_size = 3,
.max_contacts = 4,
.report_size = 15 /* 2 byte header + 3 * 4 + 1 byte footer */,
};
static const struct asus_touchpad_info medion_e1239t_tp = {
.max_x = 2640,
.max_y = 1380,
.res_x = 29, /* units/mm */
.res_y = 28, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
.report_size = 32 /* 2 byte header + 5 * 5 + 5 byte footer */,
};
static void asus_report_contact_down(struct asus_drvdata *drvdat,
int toolType, u8 *data)
{
struct input_dev *input = drvdat->input;
int touch_major, pressure, x, y;
x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
if (drvdat->tp->contact_size < 5)
return;
if (toolType == MT_TOOL_PALM) {
touch_major = MAX_TOUCH_MAJOR;
pressure = MAX_PRESSURE;
} else {
touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK;
pressure = data[4] & CONTACT_PRESSURE_MASK;
}
input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);
input_report_abs(input, ABS_MT_PRESSURE, pressure);
}
/* Required for Synaptics Palm Detection */
static void asus_report_tool_width(struct asus_drvdata *drvdat)
{
struct input_mt *mt = drvdat->input->mt;
struct input_mt_slot *oldest;
int oldid, i;
if (drvdat->tp->contact_size < 5)
return;
oldest = NULL;
oldid = mt->trkid;
for (i = 0; i < mt->num_slots; ++i) {
struct input_mt_slot *ps = &mt->slots[i];
int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
if (id < 0)
continue;
if ((id - oldid) & TRKID_SGN) {
oldest = ps;
oldid = id;
}
}
if (oldest) {
input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
}
}
static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
{
int i, toolType = MT_TOOL_FINGER;
u8 *contactData = data + 2;
if (size != drvdat->tp->report_size)
return 0;
for (i = 0; i < drvdat->tp->max_contacts; i++) {
bool down = !!(data[1] & BIT(i+3));
if (drvdat->tp->contact_size >= 5)
toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
MT_TOOL_PALM : MT_TOOL_FINGER;
input_mt_slot(drvdat->input, i);
input_mt_report_slot_state(drvdat->input, toolType, down);
if (down) {
asus_report_contact_down(drvdat, toolType, contactData);
contactData += drvdat->tp->contact_size;
}
}
input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(drvdat);
input_mt_sync_frame(drvdat->input);
input_sync(drvdat->input);
return 1;
}
static int asus_e1239t_event(struct asus_drvdata *drvdat, u8 *data, int size)
{
if (size != 3)
return 0;
/* Handle broken mute key which only sends press events */
if (!drvdat->tp &&
data[0] == 0x02 && data[1] == 0xe2 && data[2] == 0x00) {
input_report_key(drvdat->input, KEY_MUTE, 1);
input_sync(drvdat->input);
input_report_key(drvdat->input, KEY_MUTE, 0);
input_sync(drvdat->input);
return 1;
}
/* Handle custom touchpad toggle key which only sends press events */
if (drvdat->tp_kbd_input &&
data[0] == 0x05 && data[1] == 0x02 && data[2] == 0x28) {
input_report_key(drvdat->tp_kbd_input, KEY_F21, 1);
input_sync(drvdat->tp_kbd_input);
input_report_key(drvdat->tp_kbd_input, KEY_F21, 0);
input_sync(drvdat->tp_kbd_input);
return 1;
}
return 0;
}
static int asus_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
(usage->hid & HID_USAGE) != 0x00 &&
(usage->hid & HID_USAGE) != 0xff && !usage->type) {
hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
usage->hid & HID_USAGE);
}
return 0;
}
static int asus_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->battery && data[0] == BATTERY_REPORT_ID)
return asus_report_battery(drvdata, data, size);
if (drvdata->tp && data[0] == INPUT_REPORT_ID)
return asus_report_input(drvdata, data, size);
if (drvdata->quirks & QUIRK_MEDION_E1239T)
return asus_e1239t_event(drvdata, data, size);
if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) {
/*
* Skip these report ID, the device emits a continuous stream associated
* with the AURA mode it is in which looks like an 'echo'.
*/
if (report->id == FEATURE_KBD_LED_REPORT_ID1 ||
report->id == FEATURE_KBD_LED_REPORT_ID2) {
return -1;
/* Additional report filtering */
} else if (report->id == FEATURE_KBD_REPORT_ID) {
/*
* G14 and G15 send these codes on some keypresses with no
* discernable reason for doing so. We'll filter them out to avoid
* unmapped warning messages later.
*/
if (data[1] == 0xea || data[1] == 0xec || data[1] == 0x02 ||
data[1] == 0x8a || data[1] == 0x9e) {
return -1;
}
}
if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) {
/*
* G713 and G733 send these codes on some keypresses, depending on
* the key pressed it can trigger a shutdown event if not caught.
*/
if(data[0] == 0x02 && data[1] == 0x30) {
return -1;
}
}
}
if (drvdata->quirks & QUIRK_ROG_CLAYMORE_II_KEYBOARD) {
/*
* CLAYMORE II keyboard sends this packet when it goes to sleep
* this causes the whole system to go into suspend.
*/
if(size == 2 && data[0] == 0x02 && data[1] == 0x00) {
return -1;
}
}
return 0;
}
static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size)
{
unsigned char *dmabuf;
int ret;
dmabuf = kmemdup(buf, buf_size, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
/*
* The report ID should be set from the incoming buffer due to LED and key
* interfaces having different pages
*/
ret = hid_hw_raw_request(hdev, buf[0], dmabuf,
buf_size, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
kfree(dmabuf);
return ret;
}
static int asus_kbd_init(struct hid_device *hdev)
{
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
int ret;
ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
if (ret < 0)
hid_err(hdev, "Asus failed to send init command: %d\n", ret);
return ret;
}
static int asus_kbd_get_functions(struct hid_device *hdev,
unsigned char *kbd_func)
{
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
u8 *readbuf;
int ret;
ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
if (ret < 0) {
hid_err(hdev, "Asus failed to send configuration command: %d\n", ret);
return ret;
}
readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL);
if (!readbuf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf,
FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "Asus failed to request functions: %d\n", ret);
kfree(readbuf);
return ret;
}
*kbd_func = readbuf[6];
kfree(readbuf);
return ret;
}
static int rog_nkey_led_init(struct hid_device *hdev)
{
u8 buf_init_start[] = { FEATURE_KBD_LED_REPORT_ID1, 0xB9 };
u8 buf_init2[] = { FEATURE_KBD_LED_REPORT_ID1, 0x41, 0x53, 0x55, 0x53, 0x20,
0x54, 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
u8 buf_init3[] = { FEATURE_KBD_LED_REPORT_ID1,
0x05, 0x20, 0x31, 0x00, 0x08 };
int ret;
hid_info(hdev, "Asus initialise N-KEY Device");
/* The first message is an init start */
ret = asus_kbd_set_report(hdev, buf_init_start, sizeof(buf_init_start));
if (ret < 0) {
hid_warn(hdev, "Asus failed to send init start command: %d\n", ret);
return ret;
}
/* Followed by a string */
ret = asus_kbd_set_report(hdev, buf_init2, sizeof(buf_init2));
if (ret < 0) {
hid_warn(hdev, "Asus failed to send init command 1.0: %d\n", ret);
return ret;
}
/* Followed by a string */
ret = asus_kbd_set_report(hdev, buf_init3, sizeof(buf_init3));
if (ret < 0) {
hid_warn(hdev, "Asus failed to send init command 1.1: %d\n", ret);
return ret;
}
/* begin second report ID with same data */
buf_init2[0] = FEATURE_KBD_LED_REPORT_ID2;
buf_init3[0] = FEATURE_KBD_LED_REPORT_ID2;
ret = asus_kbd_set_report(hdev, buf_init2, sizeof(buf_init2));
if (ret < 0) {
hid_warn(hdev, "Asus failed to send init command 2.0: %d\n", ret);
return ret;
}
ret = asus_kbd_set_report(hdev, buf_init3, sizeof(buf_init3));
if (ret < 0)
hid_warn(hdev, "Asus failed to send init command 2.1: %d\n", ret);
return ret;
}
static void asus_schedule_work(struct asus_kbd_leds *led)
{
unsigned long flags;
spin_lock_irqsave(&led->lock, flags);
if (!led->removed)
schedule_work(&led->work);
spin_unlock_irqrestore(&led->lock, flags);
}
static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
cdev);
unsigned long flags;
spin_lock_irqsave(&led->lock, flags);
led->brightness = brightness;
spin_unlock_irqrestore(&led->lock, flags);
asus_schedule_work(led);
}
static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
{
struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
cdev);
enum led_brightness brightness;
unsigned long flags;
spin_lock_irqsave(&led->lock, flags);
brightness = led->brightness;
spin_unlock_irqrestore(&led->lock, flags);
return brightness;
}
static void asus_kbd_backlight_work(struct work_struct *work)
{
struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
int ret;
unsigned long flags;
spin_lock_irqsave(&led->lock, flags);
buf[4] = led->brightness;
spin_unlock_irqrestore(&led->lock, flags);
ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
if (ret < 0)
hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
}
/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
* precedence. We only activate HID-based backlight control when the
* WMI control is not available.
*/
static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
{
u32 value;
int ret;
if (!IS_ENABLED(CONFIG_ASUS_WMI))
return false;
ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS,
ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
if (ret)
return false;
return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
}
static int asus_kbd_register_leds(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
unsigned char kbd_func;
int ret;
if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) {
ret = rog_nkey_led_init(hdev);
if (ret < 0)
return ret;
} else {
/* Initialize keyboard */
ret = asus_kbd_init(hdev);
if (ret < 0)
return ret;
/* Get keyboard functions */
ret = asus_kbd_get_functions(hdev, &kbd_func);
if (ret < 0)
return ret;
/* Check for backlight support */
if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
return -ENODEV;
}
drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
sizeof(struct asus_kbd_leds),
GFP_KERNEL);
if (!drvdata->kbd_backlight)
return -ENOMEM;
drvdata->kbd_backlight->removed = false;
drvdata->kbd_backlight->brightness = 0;
drvdata->kbd_backlight->hdev = hdev;
drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
drvdata->kbd_backlight->cdev.max_brightness = 3;
drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
spin_lock_init(&drvdata->kbd_backlight->lock);
ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
if (ret < 0) {
/* No need to have this still around */
devm_kfree(&hdev->dev, drvdata->kbd_backlight);
}
return ret;
}
/*
* [0] REPORT_ID (same value defined in report descriptor)
* [1] rest battery level. range [0..255]
* [2]..[7] Bluetooth hardware address (MAC address)
* [8] charging status
* = 0 : AC offline / discharging
* = 1 : AC online / charging
* = 2 : AC online / fully charged
*/
static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
{
u8 sts;
u8 lvl;
int val;
lvl = data[1];
sts = data[8];
drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
switch (sts) {
case BATTERY_STAT_CHARGING:
val = POWER_SUPPLY_STATUS_CHARGING;
break;
case BATTERY_STAT_FULL:
val = POWER_SUPPLY_STATUS_FULL;
break;
case BATTERY_STAT_DISCONNECT:
default:
val = POWER_SUPPLY_STATUS_DISCHARGING;
break;
}
drvdata->battery_stat = val;
return 0;
}
static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
{
/* notify only the autonomous event by device */
if ((drvdata->battery_in_query == false) &&
(size == BATTERY_REPORT_SIZE))
power_supply_changed(drvdata->battery);
return 0;
}
static int asus_battery_query(struct asus_drvdata *drvdata)
{
u8 *buf;
int ret = 0;
buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
drvdata->battery_in_query = true;
ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
buf, BATTERY_REPORT_SIZE,
HID_INPUT_REPORT, HID_REQ_GET_REPORT);
drvdata->battery_in_query = false;
if (ret == BATTERY_REPORT_SIZE)
ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
else
ret = -ENODATA;
kfree(buf);
return ret;
}
static enum power_supply_property asus_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_MODEL_NAME,
};
#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */
static int asus_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
case POWER_SUPPLY_PROP_CAPACITY:
if (time_before(drvdata->battery_next_query, jiffies)) {
drvdata->battery_next_query =
jiffies + QUERY_MIN_INTERVAL;
ret = asus_battery_query(drvdata);
if (ret)
return ret;
}
if (psp == POWER_SUPPLY_PROP_STATUS)
val->intval = drvdata->battery_stat;
else
val->intval = drvdata->battery_capacity;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = drvdata->hdev->name;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int asus_battery_probe(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
struct power_supply_config pscfg = { .drv_data = drvdata };
int ret = 0;
drvdata->battery_capacity = 0;
drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
drvdata->battery_in_query = false;
drvdata->battery_desc.properties = asus_battery_props;
drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
drvdata->battery_desc.get_property = asus_battery_get_property;
drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
drvdata->battery_desc.use_for_apm = 0;
drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"asus-keyboard-%s-battery",
strlen(hdev->uniq) ?
hdev->uniq : dev_name(&hdev->dev));
if (!drvdata->battery_desc.name)
return -ENOMEM;
drvdata->battery_next_query = jiffies;
drvdata->battery = devm_power_supply_register(&hdev->dev,
&(drvdata->battery_desc), &pscfg);
if (IS_ERR(drvdata->battery)) {
ret = PTR_ERR(drvdata->battery);
drvdata->battery = NULL;
hid_err(hdev, "Unable to register battery device\n");
return ret;
}
power_supply_powers(drvdata->battery, &hdev->dev);
return ret;
}
static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct input_dev *input = hi->input;
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
/* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
if (drvdata->quirks & QUIRK_T100CHI &&
hi->report->id != T100CHI_MOUSE_REPORT_ID)
return 0;
/* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */
if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) {
switch (hi->report->id) {
case E1239T_TP_TOGGLE_REPORT_ID:
input_set_capability(input, EV_KEY, KEY_F21);
input->name = "Asus Touchpad Keys";
drvdata->tp_kbd_input = input;
return 0;
case INPUT_REPORT_ID:
break; /* Touchpad report, handled below */
default:
return 0; /* Ignore other reports */
}
}
if (drvdata->tp) {
int ret;
input_set_abs_params(input, ABS_MT_POSITION_X, 0,
drvdata->tp->max_x, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
drvdata->tp->max_y, 0, 0);
input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
if (drvdata->tp->contact_size >= 5) {
input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_PRESSURE, 0,
MAX_PRESSURE, 0, 0);
}
__set_bit(BTN_LEFT, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
return ret;
}
}
drvdata->input = input;
if (drvdata->enable_backlight &&
!asus_kbd_wmi_led_control_present(hdev) &&
asus_kbd_register_leds(hdev))
hid_warn(hdev, "Failed to initialize backlight.\n");
return 0;
}
#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
max, EV_KEY, (c))
static int asus_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit,
int *max)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
/* Don't map anything from the HID report.
* We do it all manually in asus_input_configured
*/
return -1;
}
/*
* Ignore a bunch of bogus collections in the T100CHI descriptor.
* This avoids a bunch of non-functional hid_input devices getting
* created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
*/
if ((drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) &&
(field->application == (HID_UP_GENDESK | 0x0080) ||
field->application == HID_GD_MOUSE ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)))
return -1;
/* ASUS-specific keyboard hotkeys and led backlight */
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_ASUSVENDOR) {
switch (usage->hid & HID_USAGE) {
case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x6c: asus_map_key_clear(KEY_SLEEP); break;
case 0x7c: asus_map_key_clear(KEY_MICMUTE); break;
case 0x82: asus_map_key_clear(KEY_CAMERA); break;
case 0x88: asus_map_key_clear(KEY_RFKILL); break;
case 0xb5: asus_map_key_clear(KEY_CALC); break;
case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
case 0xc7: asus_map_key_clear(KEY_KBDILLUMTOGGLE); break;
case 0x6b: asus_map_key_clear(KEY_F21); break; /* ASUS touchpad toggle */
case 0x38: asus_map_key_clear(KEY_PROG1); break; /* ROG key */
case 0xba: asus_map_key_clear(KEY_PROG2); break; /* Fn+C ASUS Splendid */
case 0x5c: asus_map_key_clear(KEY_PROG3); break; /* Fn+Space Power4Gear */
case 0x99: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */
case 0xae: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol */
case 0x92: asus_map_key_clear(KEY_CALC); break; /* Fn+Ret "Calc" symbol */
case 0xb2: asus_map_key_clear(KEY_PROG2); break; /* Fn+Left previous aura */
case 0xb3: asus_map_key_clear(KEY_PROG3); break; /* Fn+Left next aura */
case 0x6a: asus_map_key_clear(KEY_F13); break; /* Screenpad toggle */
case 0x4b: asus_map_key_clear(KEY_F14); break; /* Arrows/Pg-Up/Dn toggle */
default:
/* ASUS lazily declares 256 usages, ignore the rest,
* as some make the keyboard appear as a pointer device. */
return -1;
}
/*
* Check and enable backlight only on devices with UsagePage ==
* 0xff31 to avoid initializing the keyboard firmware multiple
* times on devices with multiple HID descriptors but same
* PID/VID.
*/
if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
drvdata->enable_backlight = true;
set_bit(EV_REP, hi->input->evbit);
return 1;
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
switch (usage->hid & HID_USAGE) {
case 0xff01: asus_map_key_clear(BTN_1); break;
case 0xff02: asus_map_key_clear(BTN_2); break;
case 0xff03: asus_map_key_clear(BTN_3); break;
case 0xff04: asus_map_key_clear(BTN_4); break;
case 0xff05: asus_map_key_clear(BTN_5); break;
case 0xff06: asus_map_key_clear(BTN_6); break;
case 0xff07: asus_map_key_clear(BTN_7); break;
case 0xff08: asus_map_key_clear(BTN_8); break;
case 0xff09: asus_map_key_clear(BTN_9); break;
case 0xff0a: asus_map_key_clear(BTN_A); break;
case 0xff0b: asus_map_key_clear(BTN_B); break;
case 0x00f1: asus_map_key_clear(KEY_WLAN); break;
case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x00f7: asus_map_key_clear(KEY_CAMERA); break;
case 0x00f8: asus_map_key_clear(KEY_PROG1); break;
default:
return 0;
}
set_bit(EV_REP, hi->input->evbit);
return 1;
}
if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
(usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
switch (usage->hid & HID_USAGE) {
case 0xe2: /* Mute */
case 0xe9: /* Volume up */
case 0xea: /* Volume down */
return 0;
default:
/* Ignore dummy Consumer usages which make the
* keyboard incorrectly appear as a pointer device.
*/
return -1;
}
}
/*
* The mute button is broken and only sends press events, we
* deal with this in our raw_event handler, so do not map it.
*/
if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
usage->hid == (HID_UP_CONSUMER | 0xe2)) {
input_set_capability(hi->input, EV_KEY, KEY_MUTE);
return -1;
}
return 0;
}
static int asus_start_multitouch(struct hid_device *hdev)
{
int ret;
static const unsigned char buf[] = {
FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
};
unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
if (!dmabuf) {
ret = -ENOMEM;
hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
return ret;
}
ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(dmabuf);
if (ret != sizeof(buf)) {
hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
return ret;
}
return 0;
}
static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->tp)
return asus_start_multitouch(hdev);
return 0;
}
static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct asus_drvdata *drvdata;
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
if (drvdata == NULL) {
hid_err(hdev, "Can't alloc Asus descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, drvdata);
drvdata->quirks = id->driver_data;
/*
* T90CHI's keyboard dock returns same ID values as T100CHI's dock.
* Thus, identify T90CHI dock with product name string.
*/
if (strstr(hdev->name, "T90CHI")) {
drvdata->quirks &= ~QUIRK_T100CHI;
drvdata->quirks |= QUIRK_T90CHI;
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
drvdata->tp = &asus_i2c_tp;
if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
/*
* The T100HA uses the same USB-ids as the T100TAF and
* the T200TA uses the same USB-ids as the T100TA, while
* both have different max x/y values as the T100TA[F].
*/
if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
drvdata->tp = &asus_t100ha_tp;
else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
drvdata->tp = &asus_t200ta_tp;
else
drvdata->tp = &asus_t100ta_tp;
}
}
if (drvdata->quirks & QUIRK_T100CHI) {
/*
* All functionality is on a single HID interface and for
* userspace the touchpad must be a separate input_dev.
*/
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
drvdata->tp = &asus_t100chi_tp;
}
if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) {
struct usb_host_interface *alt =
to_usb_interface(hdev->dev.parent)->altsetting;
if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) {
/* For separate input-devs for tp and tp toggle key */
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING;
drvdata->tp = &medion_e1239t_tp;
}
}
if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
drvdata->hdev = hdev;
if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
ret = asus_battery_probe(hdev);
if (ret) {
hid_err(hdev,
"Asus hid battery_probe failed: %d\n", ret);
return ret;
}
}
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Asus hid parse failed: %d\n", ret);
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Asus hw start failed: %d\n", ret);
return ret;
}
if (!drvdata->input) {
hid_err(hdev, "Asus input not registered\n");
ret = -ENOMEM;
goto err_stop_hw;
}
if (drvdata->tp) {
drvdata->input->name = "Asus TouchPad";
} else {
drvdata->input->name = "Asus Keyboard";
}
if (drvdata->tp) {
ret = asus_start_multitouch(hdev);
if (ret)
goto err_stop_hw;
}
return 0;
err_stop_hw:
hid_hw_stop(hdev);
return ret;
}
static void asus_remove(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
unsigned long flags;
if (drvdata->kbd_backlight) {
spin_lock_irqsave(&drvdata->kbd_backlight->lock, flags);
drvdata->kbd_backlight->removed = true;
spin_unlock_irqrestore(&drvdata->kbd_backlight->lock, flags);
cancel_work_sync(&drvdata->kbd_backlight->work);
}
hid_hw_stop(hdev);
}
static const __u8 asus_g752_fixed_rdesc[] = {
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */
};
static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
rdesc[55] = 0xdd;
}
/* For the T100TA/T200TA keyboard dock */
if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
(*rsize == 76 || *rsize == 101) &&
rdesc[73] == 0x81 && rdesc[74] == 0x01) {
hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
}
/* For the T100CHI/T90CHI keyboard dock */
if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
int rsize_orig;
int offs;
if (drvdata->quirks & QUIRK_T100CHI) {
rsize_orig = 403;
offs = 388;
} else {
rsize_orig = 306;
offs = 291;
}
/*
* Change Usage (76h) to Usage Minimum (00h), Usage Maximum
* (FFh) and clear the flags in the Input() byte.
* Note the descriptor has a bogus 0 byte at the end so we
* only need 1 extra byte.
*/
if (*rsize == rsize_orig &&
rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
*rsize = rsize_orig + 1;
rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
hid_info(hdev, "Fixing up %s keyb report descriptor\n",
drvdata->quirks & QUIRK_T100CHI ?
"T100CHI" : "T90CHI");
memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
rdesc[offs] = 0x19;
rdesc[offs + 1] = 0x00;
rdesc[offs + 2] = 0x29;
rdesc[offs + 3] = 0xff;
rdesc[offs + 14] = 0x00;
}
}
if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
*rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
/* report is missing usage mninum and maximum */
__u8 *new_rdesc;
size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
if (new_rdesc == NULL)
return rdesc;
hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
/* copy the valid part */
memcpy(new_rdesc, rdesc, 61);
/* insert missing part */
memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
/* copy remaining data */
memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
*rsize = new_size;
rdesc = new_rdesc;
}
if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD &&
*rsize == 331 && rdesc[190] == 0x85 && rdesc[191] == 0x5a &&
rdesc[204] == 0x95 && rdesc[205] == 0x05) {
hid_info(hdev, "Fixing up Asus N-KEY keyb report descriptor\n");
rdesc[205] = 0x01;
}
return rdesc;
}
static const struct hid_device_id asus_devices[] = {
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD),
QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2),
QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3),
QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
QUIRK_ROG_CLAYMORE_II_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T),
QUIRK_MEDION_E1239T },
/*
* Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
* part, while letting hid-multitouch.c handle the touchpad.
*/
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) },
{ }
};
MODULE_DEVICE_TABLE(hid, asus_devices);
static struct hid_driver asus_driver = {
.name = "asus",
.id_table = asus_devices,
.report_fixup = asus_report_fixup,
.probe = asus_probe,
.remove = asus_remove,
.input_mapping = asus_input_mapping,
.input_configured = asus_input_configured,
#ifdef CONFIG_PM
.reset_resume = asus_reset_resume,
#endif
.event = asus_event,
.raw_event = asus_raw_event
};
module_hid_driver(asus_driver);
MODULE_LICENSE("GPL"); | linux-master | drivers/hid/hid-asus.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some logitech "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2008 Jiri Slaby
* Copyright (c) 2010 Hendrik Iben
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/sched.h>
#include <linux/usb.h>
#include <linux/wait.h>
#include "usbhid/usbhid.h"
#include "hid-ids.h"
#include "hid-lg.h"
#include "hid-lg4ff.h"
#define LG_RDESC 0x001
#define LG_BAD_RELATIVE_KEYS 0x002
#define LG_DUPLICATE_USAGES 0x004
#define LG_EXPANDED_KEYMAP 0x010
#define LG_IGNORE_DOUBLED_WHEEL 0x020
#define LG_WIRELESS 0x040
#define LG_INVERT_HWHEEL 0x080
#define LG_NOGET 0x100
#define LG_FF 0x200
#define LG_FF2 0x400
#define LG_RDESC_REL_ABS 0x800
#define LG_FF3 0x1000
#define LG_FF4 0x2000
/* Size of the original descriptors of the Driving Force (and Pro) wheels */
#define DF_RDESC_ORIG_SIZE 130
#define DFP_RDESC_ORIG_SIZE 97
#define FV_RDESC_ORIG_SIZE 130
#define MOMO_RDESC_ORIG_SIZE 87
#define MOMO2_RDESC_ORIG_SIZE 87
#define FFG_RDESC_ORIG_SIZE 85
#define FG_RDESC_ORIG_SIZE 82
/* Fixed report descriptors for Logitech Driving Force (and Pro)
* wheel controllers
*
* The original descriptors hide the separate throttle and brake axes in
* a custom vendor usage page, providing only a combined value as
* GenericDesktop.Y.
* These descriptors remove the combined Y axis and instead report
* separate throttle (Y) and brake (RZ).
*/
static __u8 df_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0A, /* Report Size (10), */
0x14, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x34, /* Physical Minimum (0), */
0x46, 0xFF, 0x03, /* Physical Maximum (1023), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0C, /* Report Count (12), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage (Buttons), */
0x19, 0x01, /* Usage Minimum (1), */
0x29, 0x0c, /* Usage Maximum (12), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x02, /* Report Count (2), */
0x06, 0x00, 0xFF, /* Usage Page (Vendor: 65280), */
0x09, 0x01, /* Usage (?: 1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x81, 0x02, /* Input (Variable), */
0x25, 0x07, /* Logical Maximum (7), */
0x46, 0x3B, 0x01, /* Physical Maximum (315), */
0x75, 0x04, /* Report Size (4), */
0x65, 0x14, /* Unit (Degrees), */
0x09, 0x39, /* Usage (Hat Switch), */
0x81, 0x42, /* Input (Variable, Null State), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x65, 0x00, /* Unit (none), */
0x06, 0x00, 0xFF, /* Usage Page (Vendor: 65280), */
0x09, 0x01, /* Usage (?: 1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x35, /* Usage (Rz), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x95, 0x07, /* Report Count (7), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x03, /* Usage (?: 3), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 dfp_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0E, /* Report Size (14), */
0x14, /* Logical Minimum (0), */
0x26, 0xFF, 0x3F, /* Logical Maximum (16383), */
0x34, /* Physical Minimum (0), */
0x46, 0xFF, 0x3F, /* Physical Maximum (16383), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0E, /* Report Count (14), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x0E, /* Usage Maximum (0Eh), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x04, /* Report Size (4), */
0x25, 0x07, /* Logical Maximum (7), */
0x46, 0x3B, 0x01, /* Physical Maximum (315), */
0x65, 0x14, /* Unit (Degrees), */
0x09, 0x39, /* Usage (Hat Switch), */
0x81, 0x42, /* Input (Variable, Nullstate), */
0x65, 0x00, /* Unit, */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x81, 0x01, /* Input (Constant), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x35, /* Usage (Rz), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x02, /* Usage (02h), */
0x95, 0x07, /* Report Count (7), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 fv_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0A, /* Report Size (10), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x03, /* Physical Maximum (1023), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0C, /* Report Count (12), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x0C, /* Usage Maximum (0Ch), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x02, /* Report Count (2), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x02, /* Usage (02h), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x25, 0x07, /* Logical Maximum (7), */
0x46, 0x3B, 0x01, /* Physical Maximum (315), */
0x75, 0x04, /* Report Size (4), */
0x65, 0x14, /* Unit (Degrees), */
0x09, 0x39, /* Usage (Hat Switch), */
0x81, 0x42, /* Input (Variable, Null State), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x65, 0x00, /* Unit, */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Usage (Z), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x95, 0x07, /* Report Count (7), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x03, /* Usage (03h), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 momo_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0A, /* Report Size (10), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x03, /* Physical Maximum (1023), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x08, /* Report Count (8), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x08, /* Usage Maximum (08h), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x75, 0x0E, /* Report Size (14), */
0x95, 0x01, /* Report Count (1), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x09, 0x00, /* Usage (00h), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x75, 0x08, /* Report Size (8), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Usage (Z), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x02, /* Usage (02h), */
0x95, 0x07, /* Report Count (7), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 momo2_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0A, /* Report Size (10), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x03, /* Physical Maximum (1023), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0A, /* Report Count (10), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x0A, /* Usage Maximum (0Ah), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x00, /* Usage (00h), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x09, 0x01, /* Usage (01h), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Usage (Z), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x00, /* Usage (00h), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x02, /* Usage (02h), */
0x95, 0x07, /* Report Count (7), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 ffg_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystik), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x0A, /* Report Size (10), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x03, /* Physical Maximum (1023), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x06, /* Report Count (6), */
0x75, 0x01, /* Report Size (1), */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x06, /* Usage Maximum (06h), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x08, /* Report Size (8), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x81, 0x01, /* Input (Constant), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Usage (Z), */
0x81, 0x02, /* Input (Variable), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x02, /* Usage (02h), */
0x95, 0x07, /* Report Count (7), */
0x91, 0x02, /* Output (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 fg_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystik), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x35, 0x00, /* Physical Minimum (0), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0xA4, /* Push, */
0x25, 0x01, /* Logical Maximum (1), */
0x45, 0x01, /* Physical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x01, /* Input (Constant), */
0x95, 0x06, /* Report Count (6), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x06, /* Usage Maximum (06h), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0xB4, /* Pop, */
0x81, 0x02, /* Input (Constant), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x32, /* Usage (Z), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xA1, 0x02, /* Collection (Logical), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x46, 0xFF, 0x00, /* Physical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x04, /* Report Count (4), */
0x09, 0x02, /* Usage (02h), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection, */
};
/*
* Certain Logitech keyboards send in report #3 keys which are far
* above the logical maximum described in descriptor. This extends
* the original value of 0x28c of logical maximum to 0x104d
*/
static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if ((drv_data->quirks & LG_RDESC) && *rsize >= 91 && rdesc[83] == 0x26 &&
rdesc[84] == 0x8c && rdesc[85] == 0x02) {
hid_info(hdev,
"fixing up Logitech keyboard report descriptor\n");
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
if ((drv_data->quirks & LG_RDESC_REL_ABS) && *rsize >= 51 &&
rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
rdesc[49] == 0x81 && rdesc[50] == 0x06) {
hid_info(hdev,
"fixing up rel/abs in Logitech report descriptor\n");
rdesc[33] = rdesc[50] = 0x02;
}
switch (hdev->product) {
case USB_DEVICE_ID_LOGITECH_WINGMAN_FG:
if (*rsize == FG_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Wingman Formula GP report descriptor\n");
rdesc = fg_rdesc_fixed;
*rsize = sizeof(fg_rdesc_fixed);
} else {
hid_info(hdev,
"rdesc size test failed for formula gp\n");
}
break;
case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:
if (*rsize == FFG_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Wingman Formula Force GP report descriptor\n");
rdesc = ffg_rdesc_fixed;
*rsize = sizeof(ffg_rdesc_fixed);
}
break;
/* Several wheels report as this id when operating in emulation mode. */
case USB_DEVICE_ID_LOGITECH_WHEEL:
if (*rsize == DF_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Driving Force report descriptor\n");
rdesc = df_rdesc_fixed;
*rsize = sizeof(df_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
if (*rsize == MOMO_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Momo Force (Red) report descriptor\n");
rdesc = momo_rdesc_fixed;
*rsize = sizeof(momo_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
rdesc = momo2_rdesc_fixed;
*rsize = sizeof(momo2_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
if (*rsize == FV_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Formula Vibration report descriptor\n");
rdesc = fv_rdesc_fixed;
*rsize = sizeof(fv_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
if (*rsize == DFP_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Driving Force Pro report descriptor\n");
rdesc = dfp_rdesc_fixed;
*rsize = sizeof(dfp_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
if (*rsize >= 101 && rdesc[41] == 0x95 && rdesc[42] == 0x0B &&
rdesc[47] == 0x05 && rdesc[48] == 0x09) {
hid_info(hdev, "fixing up Logitech Speed Force Wireless report descriptor\n");
rdesc[41] = 0x05;
rdesc[42] = 0x09;
rdesc[47] = 0x95;
rdesc[48] = 0x0B;
}
break;
}
return rdesc;
}
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int lg_ultrax_remote_mapping(struct hid_input *hi,
struct hid_usage *usage, unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
/* Reported on Logitech Ultra X Media Remote */
case 0x004: lg_map_key_clear(KEY_AGAIN); break;
case 0x00d: lg_map_key_clear(KEY_HOME); break;
case 0x024: lg_map_key_clear(KEY_SHUFFLE); break;
case 0x025: lg_map_key_clear(KEY_TV); break;
case 0x026: lg_map_key_clear(KEY_MENU); break;
case 0x031: lg_map_key_clear(KEY_AUDIO); break;
case 0x032: lg_map_key_clear(KEY_TEXT); break;
case 0x033: lg_map_key_clear(KEY_LAST); break;
case 0x047: lg_map_key_clear(KEY_MP3); break;
case 0x048: lg_map_key_clear(KEY_DVD); break;
case 0x049: lg_map_key_clear(KEY_MEDIA); break;
case 0x04a: lg_map_key_clear(KEY_VIDEO); break;
case 0x04b: lg_map_key_clear(KEY_ANGLE); break;
case 0x04c: lg_map_key_clear(KEY_LANGUAGE); break;
case 0x04d: lg_map_key_clear(KEY_SUBTITLE); break;
case 0x051: lg_map_key_clear(KEY_RED); break;
case 0x052: lg_map_key_clear(KEY_CLOSE); break;
default:
return 0;
}
return 1;
}
static int lg_wireless_mapping(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x1001: lg_map_key_clear(KEY_MESSENGER); break;
case 0x1003: lg_map_key_clear(KEY_SOUND); break;
case 0x1004: lg_map_key_clear(KEY_VIDEO); break;
case 0x1005: lg_map_key_clear(KEY_AUDIO); break;
case 0x100a: lg_map_key_clear(KEY_DOCUMENTS); break;
/* The following two entries are Playlist 1 and 2 on the MX3200 */
case 0x100f: lg_map_key_clear(KEY_FN_1); break;
case 0x1010: lg_map_key_clear(KEY_FN_2); break;
case 0x1011: lg_map_key_clear(KEY_PREVIOUSSONG); break;
case 0x1012: lg_map_key_clear(KEY_NEXTSONG); break;
case 0x1013: lg_map_key_clear(KEY_CAMERA); break;
case 0x1014: lg_map_key_clear(KEY_MESSENGER); break;
case 0x1015: lg_map_key_clear(KEY_RECORD); break;
case 0x1016: lg_map_key_clear(KEY_PLAYER); break;
case 0x1017: lg_map_key_clear(KEY_EJECTCD); break;
case 0x1018: lg_map_key_clear(KEY_MEDIA); break;
case 0x1019: lg_map_key_clear(KEY_PROG1); break;
case 0x101a: lg_map_key_clear(KEY_PROG2); break;
case 0x101b: lg_map_key_clear(KEY_PROG3); break;
case 0x101c: lg_map_key_clear(KEY_CYCLEWINDOWS); break;
case 0x101f: lg_map_key_clear(KEY_ZOOMIN); break;
case 0x1020: lg_map_key_clear(KEY_ZOOMOUT); break;
case 0x1021: lg_map_key_clear(KEY_ZOOMRESET); break;
case 0x1023: lg_map_key_clear(KEY_CLOSE); break;
case 0x1027: lg_map_key_clear(KEY_MENU); break;
/* this one is marked as 'Rotate' */
case 0x1028: lg_map_key_clear(KEY_ANGLE); break;
case 0x1029: lg_map_key_clear(KEY_SHUFFLE); break;
case 0x102a: lg_map_key_clear(KEY_BACK); break;
case 0x102b: lg_map_key_clear(KEY_CYCLEWINDOWS); break;
case 0x102d: lg_map_key_clear(KEY_WWW); break;
/* The following two are 'Start/answer call' and 'End/reject call'
on the MX3200 */
case 0x1031: lg_map_key_clear(KEY_OK); break;
case 0x1032: lg_map_key_clear(KEY_CANCEL); break;
case 0x1041: lg_map_key_clear(KEY_BATTERY); break;
case 0x1042: lg_map_key_clear(KEY_WORDPROCESSOR); break;
case 0x1043: lg_map_key_clear(KEY_SPREADSHEET); break;
case 0x1044: lg_map_key_clear(KEY_PRESENTATION); break;
case 0x1045: lg_map_key_clear(KEY_UNDO); break;
case 0x1046: lg_map_key_clear(KEY_REDO); break;
case 0x1047: lg_map_key_clear(KEY_PRINT); break;
case 0x1048: lg_map_key_clear(KEY_SAVE); break;
case 0x1049: lg_map_key_clear(KEY_PROG1); break;
case 0x104a: lg_map_key_clear(KEY_PROG2); break;
case 0x104b: lg_map_key_clear(KEY_PROG3); break;
case 0x104c: lg_map_key_clear(KEY_PROG4); break;
default:
return 0;
}
return 1;
}
static int lg_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/* extended mapping for certain Logitech hardware (Logitech cordless
desktop LX500) */
static const u8 e_keymap[] = {
0,216, 0,213,175,156, 0, 0, 0, 0,
144, 0, 0, 0, 0, 0, 0, 0, 0,212,
174,167,152,161,112, 0, 0, 0,154, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,183,184,185,186,187,
188,189,190,191,192,193,194, 0, 0, 0
};
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
unsigned int hid = usage->hid;
if (hdev->product == USB_DEVICE_ID_LOGITECH_RECEIVER &&
lg_ultrax_remote_mapping(hi, usage, bit, max))
return 1;
if ((drv_data->quirks & LG_WIRELESS) && lg_wireless_mapping(hi, usage, bit, max))
return 1;
if ((hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
return 0;
hid &= HID_USAGE;
/* Special handling for Logitech Cordless Desktop */
if (field->application == HID_GD_MOUSE) {
if ((drv_data->quirks & LG_IGNORE_DOUBLED_WHEEL) &&
(hid == 7 || hid == 8))
return -1;
} else {
if ((drv_data->quirks & LG_EXPANDED_KEYMAP) &&
hid < ARRAY_SIZE(e_keymap) &&
e_keymap[hid] != 0) {
hid_map_usage(hi, usage, bit, max, EV_KEY,
e_keymap[hid]);
return 1;
}
}
return 0;
}
static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if ((drv_data->quirks & LG_BAD_RELATIVE_KEYS) && usage->type == EV_KEY &&
(field->flags & HID_MAIN_ITEM_RELATIVE))
field->flags &= ~HID_MAIN_ITEM_RELATIVE;
if ((drv_data->quirks & LG_DUPLICATE_USAGES) && (usage->type == EV_KEY ||
usage->type == EV_REL || usage->type == EV_ABS))
clear_bit(usage->code, *bit);
/* Ensure that Logitech wheels are not given a default fuzz/flat value */
if (usage->type == EV_ABS && (usage->code == ABS_X ||
usage->code == ABS_Y || usage->code == ABS_Z ||
usage->code == ABS_RZ)) {
switch (hdev->product) {
case USB_DEVICE_ID_LOGITECH_G29_WHEEL:
case USB_DEVICE_ID_LOGITECH_WINGMAN_FG:
case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:
case USB_DEVICE_ID_LOGITECH_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
case USB_DEVICE_ID_LOGITECH_G25_WHEEL:
case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:
case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
field->application = HID_GD_MULTIAXIS;
break;
default:
break;
}
}
return 0;
}
static int lg_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if ((drv_data->quirks & LG_INVERT_HWHEEL) && usage->code == REL_HWHEEL) {
input_event(field->hidinput->input, usage->type, usage->code,
-value);
return 1;
}
if (drv_data->quirks & LG_FF4) {
return lg4ff_adjust_input_event(hdev, field, usage, value, drv_data);
}
return 0;
}
static int lg_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if (drv_data->quirks & LG_FF4)
return lg4ff_raw_event(hdev, report, rd, size, drv_data);
return 0;
}
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct usb_interface *iface;
__u8 iface_num;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
struct lg_drv_data *drv_data;
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
iface = to_usb_interface(hdev->dev.parent);
iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
/* G29 only work with the 1st interface */
if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) &&
(iface_num != 0)) {
dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);
return -ENODEV;
}
drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);
if (!drv_data) {
hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
return -ENOMEM;
}
drv_data->quirks = id->driver_data;
hid_set_drvdata(hdev, (void *)drv_data);
if (drv_data->quirks & LG_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
if (drv_data->quirks & (LG_FF | LG_FF2 | LG_FF3 | LG_FF4))
connect_mask &= ~HID_CONNECT_FF;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
/* Setup wireless link with Logitech Wii wheel */
if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
static const unsigned char cbuf[] = {
0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
u8 *buf = kmemdup(cbuf, sizeof(cbuf), GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto err_stop;
}
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(cbuf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret >= 0) {
/* insert a little delay of 10 jiffies ~ 40ms */
wait_queue_head_t wait;
init_waitqueue_head (&wait);
wait_event_interruptible_timeout(wait, 0,
msecs_to_jiffies(40));
/* Select random Address */
buf[1] = 0xB2;
get_random_bytes(&buf[2], 2);
ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(cbuf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
}
kfree(buf);
}
if (drv_data->quirks & LG_FF)
ret = lgff_init(hdev);
else if (drv_data->quirks & LG_FF2)
ret = lg2ff_init(hdev);
else if (drv_data->quirks & LG_FF3)
ret = lg3ff_init(hdev);
else if (drv_data->quirks & LG_FF4)
ret = lg4ff_init(hdev);
if (ret)
goto err_stop;
return 0;
err_stop:
hid_hw_stop(hdev);
err_free:
kfree(drv_data);
return ret;
}
static void lg_remove(struct hid_device *hdev)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if (drv_data->quirks & LG_FF4)
lg4ff_deinit(hdev);
hid_hw_stop(hdev);
kfree(drv_data);
}
static const struct hid_device_id lg_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER),
.driver_data = LG_RDESC | LG_WIRELESS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER),
.driver_data = LG_BAD_RELATIVE_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP),
.driver_data = LG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD),
.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500),
.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D),
.driver_data = LG_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION),
.driver_data = LG_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL),
.driver_data = LG_NOGET | LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD),
.driver_data = LG_FF2 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL),
.driver_data = LG_NOGET | LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL),
.driver_data = LG_FF2 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL),
.driver_data = LG_NOGET | LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),
.driver_data = LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FG),
.driver_data = LG_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),
.driver_data = LG_NOGET | LG_FF4 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
.driver_data = LG_NOGET | LG_FF2 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
.driver_data = LG_FF3 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
.driver_data = LG_RDESC_REL_ABS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),
.driver_data = LG_RDESC_REL_ABS },
{ }
};
MODULE_DEVICE_TABLE(hid, lg_devices);
static struct hid_driver lg_driver = {
.name = "logitech",
.id_table = lg_devices,
.report_fixup = lg_report_fixup,
.input_mapping = lg_input_mapping,
.input_mapped = lg_input_mapped,
.event = lg_event,
.raw_event = lg_raw_event,
.probe = lg_probe,
.remove = lg_remove,
};
module_hid_driver(lg_driver);
#ifdef CONFIG_LOGIWHEELS_FF
int lg4ff_no_autoswitch = 0;
module_param_named(lg4ff_no_autoswitch, lg4ff_no_autoswitch, int, S_IRUGO);
MODULE_PARM_DESC(lg4ff_no_autoswitch, "Do not switch multimode wheels to their native mode automatically");
#endif
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-lg.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for Topre REALFORCE Keyboards
*
* Copyright (c) 2022 Harry Stern <[email protected]>
*
* Based on the hid-macally driver
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Harry Stern <[email protected]>");
MODULE_DESCRIPTION("REALFORCE R2 Keyboard driver");
MODULE_LICENSE("GPL");
/*
* Fix the REALFORCE R2's non-boot interface's report descriptor to match the
* events it's actually sending. It claims to send array events but is instead
* sending variable events.
*/
static __u8 *topre_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 119 && rdesc[69] == 0x29 && rdesc[70] == 0xe7 &&
rdesc[71] == 0x81 && rdesc[72] == 0x00) {
hid_info(hdev,
"fixing up Topre REALFORCE keyboard report descriptor\n");
rdesc[72] = 0x02;
}
return rdesc;
}
static const struct hid_device_id topre_id_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
USB_DEVICE_ID_TOPRE_REALFORCE_R2_108) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
USB_DEVICE_ID_TOPRE_REALFORCE_R2_87) },
{ }
};
MODULE_DEVICE_TABLE(hid, topre_id_table);
static struct hid_driver topre_driver = {
.name = "topre",
.id_table = topre_id_table,
.report_fixup = topre_report_fixup,
};
module_hid_driver(topre_driver);
| linux-master | drivers/hid/hid-topre.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB HID support for Linux
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
* Copyright (c) 2007-2008 Oliver Neukum
* Copyright (c) 2006-2010 Jiri Kosina
*/
/*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/string.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/hid-debug.h>
#include <linux/hidraw.h>
#include "usbhid.h"
/*
* Version Information
*/
#define DRIVER_DESC "USB HID core driver"
/*
* Module parameters.
*/
static unsigned int hid_mousepoll_interval;
module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
static unsigned int hid_jspoll_interval;
module_param_named(jspoll, hid_jspoll_interval, uint, 0644);
MODULE_PARM_DESC(jspoll, "Polling interval of joysticks");
static unsigned int hid_kbpoll_interval;
module_param_named(kbpoll, hid_kbpoll_interval, uint, 0644);
MODULE_PARM_DESC(kbpoll, "Polling interval of keyboards");
static unsigned int ignoreled;
module_param_named(ignoreled, ignoreled, uint, 0644);
MODULE_PARM_DESC(ignoreled, "Autosuspend with active leds");
/* Quirks specified at module load time */
static char *quirks_param[MAX_USBHID_BOOT_QUIRKS];
module_param_array_named(quirks, quirks_param, charp, NULL, 0444);
MODULE_PARM_DESC(quirks, "Add/modify USB HID quirks by specifying "
" quirks=vendorID:productID:quirks"
" where vendorID, productID, and quirks are all in"
" 0x-prefixed hex");
/*
* Input submission and I/O error handler.
*/
static void hid_io_error(struct hid_device *hid);
static int hid_submit_out(struct hid_device *hid);
static int hid_submit_ctrl(struct hid_device *hid);
static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid);
/* Start up the input URB */
static int hid_start_in(struct hid_device *hid)
{
unsigned long flags;
int rc = 0;
struct usbhid_device *usbhid = hid->driver_data;
spin_lock_irqsave(&usbhid->lock, flags);
if (test_bit(HID_IN_POLLING, &usbhid->iofl) &&
!test_bit(HID_DISCONNECTED, &usbhid->iofl) &&
!test_bit(HID_SUSPENDED, &usbhid->iofl) &&
!test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) {
rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC);
if (rc != 0) {
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
if (rc == -ENOSPC)
set_bit(HID_NO_BANDWIDTH, &usbhid->iofl);
} else {
clear_bit(HID_NO_BANDWIDTH, &usbhid->iofl);
}
}
spin_unlock_irqrestore(&usbhid->lock, flags);
return rc;
}
/* I/O retry timer routine */
static void hid_retry_timeout(struct timer_list *t)
{
struct usbhid_device *usbhid = from_timer(usbhid, t, io_retry);
struct hid_device *hid = usbhid->hid;
dev_dbg(&usbhid->intf->dev, "retrying intr urb\n");
if (hid_start_in(hid))
hid_io_error(hid);
}
/* Workqueue routine to reset the device or clear a halt */
static void hid_reset(struct work_struct *work)
{
struct usbhid_device *usbhid =
container_of(work, struct usbhid_device, reset_work);
struct hid_device *hid = usbhid->hid;
int rc;
if (test_bit(HID_CLEAR_HALT, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "clear halt\n");
rc = usb_clear_halt(hid_to_usb_dev(hid), usbhid->urbin->pipe);
clear_bit(HID_CLEAR_HALT, &usbhid->iofl);
if (rc == 0) {
hid_start_in(hid);
} else {
dev_dbg(&usbhid->intf->dev,
"clear-halt failed: %d\n", rc);
set_bit(HID_RESET_PENDING, &usbhid->iofl);
}
}
if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) {
dev_dbg(&usbhid->intf->dev, "resetting device\n");
usb_queue_reset_device(usbhid->intf);
}
}
/* Main I/O error handler */
static void hid_io_error(struct hid_device *hid)
{
unsigned long flags;
struct usbhid_device *usbhid = hid->driver_data;
spin_lock_irqsave(&usbhid->lock, flags);
/* Stop when disconnected */
if (test_bit(HID_DISCONNECTED, &usbhid->iofl))
goto done;
/* If it has been a while since the last error, we'll assume
* this a brand new error and reset the retry timeout. */
if (time_after(jiffies, usbhid->stop_retry + HZ/2))
usbhid->retry_delay = 0;
/* When an error occurs, retry at increasing intervals */
if (usbhid->retry_delay == 0) {
usbhid->retry_delay = 13; /* Then 26, 52, 104, 104, ... */
usbhid->stop_retry = jiffies + msecs_to_jiffies(1000);
} else if (usbhid->retry_delay < 100)
usbhid->retry_delay *= 2;
if (time_after(jiffies, usbhid->stop_retry)) {
/* Retries failed, so do a port reset unless we lack bandwidth*/
if (!test_bit(HID_NO_BANDWIDTH, &usbhid->iofl)
&& !test_and_set_bit(HID_RESET_PENDING, &usbhid->iofl)) {
schedule_work(&usbhid->reset_work);
goto done;
}
}
mod_timer(&usbhid->io_retry,
jiffies + msecs_to_jiffies(usbhid->retry_delay));
done:
spin_unlock_irqrestore(&usbhid->lock, flags);
}
static void usbhid_mark_busy(struct usbhid_device *usbhid)
{
struct usb_interface *intf = usbhid->intf;
usb_mark_last_busy(interface_to_usbdev(intf));
}
static int usbhid_restart_out_queue(struct usbhid_device *usbhid)
{
struct hid_device *hid = usb_get_intfdata(usbhid->intf);
int kicked;
int r;
if (!hid || test_bit(HID_RESET_PENDING, &usbhid->iofl) ||
test_bit(HID_SUSPENDED, &usbhid->iofl))
return 0;
if ((kicked = (usbhid->outhead != usbhid->outtail))) {
hid_dbg(hid, "Kicking head %d tail %d", usbhid->outhead, usbhid->outtail);
/* Try to wake up from autosuspend... */
r = usb_autopm_get_interface_async(usbhid->intf);
if (r < 0)
return r;
/*
* If still suspended, don't submit. Submission will
* occur if/when resume drains the queue.
*/
if (test_bit(HID_SUSPENDED, &usbhid->iofl)) {
usb_autopm_put_interface_no_suspend(usbhid->intf);
return r;
}
/* Asynchronously flush queue. */
set_bit(HID_OUT_RUNNING, &usbhid->iofl);
if (hid_submit_out(hid)) {
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
usb_autopm_put_interface_async(usbhid->intf);
}
wake_up(&usbhid->wait);
}
return kicked;
}
static int usbhid_restart_ctrl_queue(struct usbhid_device *usbhid)
{
struct hid_device *hid = usb_get_intfdata(usbhid->intf);
int kicked;
int r;
WARN_ON(hid == NULL);
if (!hid || test_bit(HID_RESET_PENDING, &usbhid->iofl) ||
test_bit(HID_SUSPENDED, &usbhid->iofl))
return 0;
if ((kicked = (usbhid->ctrlhead != usbhid->ctrltail))) {
hid_dbg(hid, "Kicking head %d tail %d", usbhid->ctrlhead, usbhid->ctrltail);
/* Try to wake up from autosuspend... */
r = usb_autopm_get_interface_async(usbhid->intf);
if (r < 0)
return r;
/*
* If still suspended, don't submit. Submission will
* occur if/when resume drains the queue.
*/
if (test_bit(HID_SUSPENDED, &usbhid->iofl)) {
usb_autopm_put_interface_no_suspend(usbhid->intf);
return r;
}
/* Asynchronously flush queue. */
set_bit(HID_CTRL_RUNNING, &usbhid->iofl);
if (hid_submit_ctrl(hid)) {
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
usb_autopm_put_interface_async(usbhid->intf);
}
wake_up(&usbhid->wait);
}
return kicked;
}
/*
* Input interrupt completion handler.
*/
static void hid_irq_in(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
int status;
switch (urb->status) {
case 0: /* success */
usbhid->retry_delay = 0;
if (!test_bit(HID_OPENED, &usbhid->iofl))
break;
usbhid_mark_busy(usbhid);
if (!test_bit(HID_RESUME_RUNNING, &usbhid->iofl)) {
hid_input_report(urb->context, HID_INPUT_REPORT,
urb->transfer_buffer,
urb->actual_length, 1);
/*
* autosuspend refused while keys are pressed
* because most keyboards don't wake up when
* a key is released
*/
if (hid_check_keys_pressed(hid))
set_bit(HID_KEYS_PRESSED, &usbhid->iofl);
else
clear_bit(HID_KEYS_PRESSED, &usbhid->iofl);
}
break;
case -EPIPE: /* stall */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
set_bit(HID_CLEAR_HALT, &usbhid->iofl);
schedule_work(&usbhid->reset_work);
return;
case -ECONNRESET: /* unlink */
case -ENOENT:
case -ESHUTDOWN: /* unplug */
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
return;
case -EILSEQ: /* protocol error or unplug */
case -EPROTO: /* protocol error or unplug */
case -ETIME: /* protocol error or unplug */
case -ETIMEDOUT: /* Should never happen, but... */
usbhid_mark_busy(usbhid);
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
hid_io_error(hid);
return;
default: /* error */
hid_warn(urb->dev, "input irq status %d received\n",
urb->status);
}
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
clear_bit(HID_IN_RUNNING, &usbhid->iofl);
if (status != -EPERM) {
hid_err(hid, "can't resubmit intr, %s-%s/input%d, status %d\n",
hid_to_usb_dev(hid)->bus->bus_name,
hid_to_usb_dev(hid)->devpath,
usbhid->ifnum, status);
hid_io_error(hid);
}
}
}
static int hid_submit_out(struct hid_device *hid)
{
struct hid_report *report;
char *raw_report;
struct usbhid_device *usbhid = hid->driver_data;
int r;
report = usbhid->out[usbhid->outtail].report;
raw_report = usbhid->out[usbhid->outtail].raw_report;
usbhid->urbout->transfer_buffer_length = hid_report_len(report);
usbhid->urbout->dev = hid_to_usb_dev(hid);
if (raw_report) {
memcpy(usbhid->outbuf, raw_report,
usbhid->urbout->transfer_buffer_length);
kfree(raw_report);
usbhid->out[usbhid->outtail].raw_report = NULL;
}
dbg_hid("submitting out urb\n");
r = usb_submit_urb(usbhid->urbout, GFP_ATOMIC);
if (r < 0) {
hid_err(hid, "usb_submit_urb(out) failed: %d\n", r);
return r;
}
usbhid->last_out = jiffies;
return 0;
}
static int hid_submit_ctrl(struct hid_device *hid)
{
struct hid_report *report;
unsigned char dir;
char *raw_report;
int len, r;
struct usbhid_device *usbhid = hid->driver_data;
report = usbhid->ctrl[usbhid->ctrltail].report;
raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report;
dir = usbhid->ctrl[usbhid->ctrltail].dir;
len = hid_report_len(report);
if (dir == USB_DIR_OUT) {
usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
if (raw_report) {
memcpy(usbhid->ctrlbuf, raw_report, len);
kfree(raw_report);
usbhid->ctrl[usbhid->ctrltail].raw_report = NULL;
}
} else {
int maxpacket;
usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
maxpacket = usb_maxpacket(hid_to_usb_dev(hid),
usbhid->urbctrl->pipe);
len += (len == 0); /* Don't allow 0-length reports */
len = round_up(len, maxpacket);
if (len > usbhid->bufsize)
len = usbhid->bufsize;
}
usbhid->urbctrl->transfer_buffer_length = len;
usbhid->urbctrl->dev = hid_to_usb_dev(hid);
usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT :
HID_REQ_GET_REPORT;
usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) |
report->id);
usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
usbhid->cr->wLength = cpu_to_le16(len);
dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" :
"Get_Report",
usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
r = usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC);
if (r < 0) {
hid_err(hid, "usb_submit_urb(ctrl) failed: %d\n", r);
return r;
}
usbhid->last_ctrl = jiffies;
return 0;
}
/*
* Output interrupt completion handler.
*/
static void hid_irq_out(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
unsigned long flags;
int unplug = 0;
switch (urb->status) {
case 0: /* success */
break;
case -ESHUTDOWN: /* unplug */
unplug = 1;
break;
case -EILSEQ: /* protocol error or unplug */
case -EPROTO: /* protocol error or unplug */
case -ECONNRESET: /* unlink */
case -ENOENT:
break;
default: /* error */
hid_warn(urb->dev, "output irq status %d received\n",
urb->status);
}
spin_lock_irqsave(&usbhid->lock, flags);
if (unplug) {
usbhid->outtail = usbhid->outhead;
} else {
usbhid->outtail = (usbhid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
if (usbhid->outhead != usbhid->outtail &&
hid_submit_out(hid) == 0) {
/* Successfully submitted next urb in queue */
spin_unlock_irqrestore(&usbhid->lock, flags);
return;
}
}
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
spin_unlock_irqrestore(&usbhid->lock, flags);
usb_autopm_put_interface_async(usbhid->intf);
wake_up(&usbhid->wait);
}
/*
* Control pipe completion handler.
*/
static void hid_ctrl(struct urb *urb)
{
struct hid_device *hid = urb->context;
struct usbhid_device *usbhid = hid->driver_data;
unsigned long flags;
int unplug = 0, status = urb->status;
switch (status) {
case 0: /* success */
if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
hid_input_report(urb->context,
usbhid->ctrl[usbhid->ctrltail].report->type,
urb->transfer_buffer, urb->actual_length, 0);
break;
case -ESHUTDOWN: /* unplug */
unplug = 1;
break;
case -EILSEQ: /* protocol error or unplug */
case -EPROTO: /* protocol error or unplug */
case -ECONNRESET: /* unlink */
case -ENOENT:
case -EPIPE: /* report not available */
break;
default: /* error */
hid_warn(urb->dev, "ctrl urb status %d received\n", status);
}
spin_lock_irqsave(&usbhid->lock, flags);
if (unplug) {
usbhid->ctrltail = usbhid->ctrlhead;
} else if (usbhid->ctrlhead != usbhid->ctrltail) {
usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
if (usbhid->ctrlhead != usbhid->ctrltail &&
hid_submit_ctrl(hid) == 0) {
/* Successfully submitted next urb in queue */
spin_unlock_irqrestore(&usbhid->lock, flags);
return;
}
}
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
spin_unlock_irqrestore(&usbhid->lock, flags);
usb_autopm_put_interface_async(usbhid->intf);
wake_up(&usbhid->wait);
}
static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *report,
unsigned char dir)
{
int head;
struct usbhid_device *usbhid = hid->driver_data;
if (((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN) ||
test_bit(HID_DISCONNECTED, &usbhid->iofl))
return;
if (usbhid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
if ((head = (usbhid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == usbhid->outtail) {
hid_warn(hid, "output queue full\n");
return;
}
usbhid->out[usbhid->outhead].raw_report = hid_alloc_report_buf(report, GFP_ATOMIC);
if (!usbhid->out[usbhid->outhead].raw_report) {
hid_warn(hid, "output queueing failed\n");
return;
}
hid_output_report(report, usbhid->out[usbhid->outhead].raw_report);
usbhid->out[usbhid->outhead].report = report;
usbhid->outhead = head;
/* If the queue isn't running, restart it */
if (!test_bit(HID_OUT_RUNNING, &usbhid->iofl)) {
usbhid_restart_out_queue(usbhid);
/* Otherwise see if an earlier request has timed out */
} else if (time_after(jiffies, usbhid->last_out + HZ * 5)) {
/* Prevent autosuspend following the unlink */
usb_autopm_get_interface_no_resume(usbhid->intf);
/*
* Prevent resubmission in case the URB completes
* before we can unlink it. We don't want to cancel
* the wrong transfer!
*/
usb_block_urb(usbhid->urbout);
/* Drop lock to avoid deadlock if the callback runs */
spin_unlock(&usbhid->lock);
usb_unlink_urb(usbhid->urbout);
spin_lock(&usbhid->lock);
usb_unblock_urb(usbhid->urbout);
/* Unlink might have stopped the queue */
if (!test_bit(HID_OUT_RUNNING, &usbhid->iofl))
usbhid_restart_out_queue(usbhid);
/* Now we can allow autosuspend again */
usb_autopm_put_interface_async(usbhid->intf);
}
return;
}
if ((head = (usbhid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == usbhid->ctrltail) {
hid_warn(hid, "control queue full\n");
return;
}
if (dir == USB_DIR_OUT) {
usbhid->ctrl[usbhid->ctrlhead].raw_report = hid_alloc_report_buf(report, GFP_ATOMIC);
if (!usbhid->ctrl[usbhid->ctrlhead].raw_report) {
hid_warn(hid, "control queueing failed\n");
return;
}
hid_output_report(report, usbhid->ctrl[usbhid->ctrlhead].raw_report);
}
usbhid->ctrl[usbhid->ctrlhead].report = report;
usbhid->ctrl[usbhid->ctrlhead].dir = dir;
usbhid->ctrlhead = head;
/* If the queue isn't running, restart it */
if (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl)) {
usbhid_restart_ctrl_queue(usbhid);
/* Otherwise see if an earlier request has timed out */
} else if (time_after(jiffies, usbhid->last_ctrl + HZ * 5)) {
/* Prevent autosuspend following the unlink */
usb_autopm_get_interface_no_resume(usbhid->intf);
/*
* Prevent resubmission in case the URB completes
* before we can unlink it. We don't want to cancel
* the wrong transfer!
*/
usb_block_urb(usbhid->urbctrl);
/* Drop lock to avoid deadlock if the callback runs */
spin_unlock(&usbhid->lock);
usb_unlink_urb(usbhid->urbctrl);
spin_lock(&usbhid->lock);
usb_unblock_urb(usbhid->urbctrl);
/* Unlink might have stopped the queue */
if (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl))
usbhid_restart_ctrl_queue(usbhid);
/* Now we can allow autosuspend again */
usb_autopm_put_interface_async(usbhid->intf);
}
}
static void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
{
struct usbhid_device *usbhid = hid->driver_data;
unsigned long flags;
spin_lock_irqsave(&usbhid->lock, flags);
__usbhid_submit_report(hid, report, dir);
spin_unlock_irqrestore(&usbhid->lock, flags);
}
static int usbhid_wait_io(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
if (!wait_event_timeout(usbhid->wait,
(!test_bit(HID_CTRL_RUNNING, &usbhid->iofl) &&
!test_bit(HID_OUT_RUNNING, &usbhid->iofl)),
10*HZ)) {
dbg_hid("timeout waiting for ctrl or out queue to clear\n");
return -1;
}
return 0;
}
static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
{
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
unsigned char type, void *buf, int size)
{
int result, retries = 4;
memset(buf, 0, size);
do {
result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
(type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT);
retries--;
} while (result < size && retries);
return result;
}
static int usbhid_open(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
int res;
mutex_lock(&usbhid->mutex);
set_bit(HID_OPENED, &usbhid->iofl);
if (hid->quirks & HID_QUIRK_ALWAYS_POLL) {
res = 0;
goto Done;
}
res = usb_autopm_get_interface(usbhid->intf);
/* the device must be awake to reliably request remote wakeup */
if (res < 0) {
clear_bit(HID_OPENED, &usbhid->iofl);
res = -EIO;
goto Done;
}
usbhid->intf->needs_remote_wakeup = 1;
set_bit(HID_RESUME_RUNNING, &usbhid->iofl);
set_bit(HID_IN_POLLING, &usbhid->iofl);
res = hid_start_in(hid);
if (res) {
if (res != -ENOSPC) {
hid_io_error(hid);
res = 0;
} else {
/* no use opening if resources are insufficient */
res = -EBUSY;
clear_bit(HID_OPENED, &usbhid->iofl);
clear_bit(HID_IN_POLLING, &usbhid->iofl);
usbhid->intf->needs_remote_wakeup = 0;
}
}
usb_autopm_put_interface(usbhid->intf);
/*
* In case events are generated while nobody was listening,
* some are released when the device is re-opened.
* Wait 50 msec for the queue to empty before allowing events
* to go through hid.
*/
if (res == 0)
msleep(50);
clear_bit(HID_RESUME_RUNNING, &usbhid->iofl);
Done:
mutex_unlock(&usbhid->mutex);
return res;
}
static void usbhid_close(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
mutex_lock(&usbhid->mutex);
/*
* Make sure we don't restart data acquisition due to
* a resumption we no longer care about by avoiding racing
* with hid_start_in().
*/
spin_lock_irq(&usbhid->lock);
clear_bit(HID_OPENED, &usbhid->iofl);
if (!(hid->quirks & HID_QUIRK_ALWAYS_POLL))
clear_bit(HID_IN_POLLING, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
if (!(hid->quirks & HID_QUIRK_ALWAYS_POLL)) {
hid_cancel_delayed_stuff(usbhid);
usb_kill_urb(usbhid->urbin);
usbhid->intf->needs_remote_wakeup = 0;
}
mutex_unlock(&usbhid->mutex);
}
/*
* Initialize all reports
*/
void usbhid_init_reports(struct hid_device *hid)
{
struct hid_report *report;
struct usbhid_device *usbhid = hid->driver_data;
struct hid_report_enum *report_enum;
int err, ret;
report_enum = &hid->report_enum[HID_INPUT_REPORT];
list_for_each_entry(report, &report_enum->report_list, list)
usbhid_submit_report(hid, report, USB_DIR_IN);
report_enum = &hid->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(report, &report_enum->report_list, list)
usbhid_submit_report(hid, report, USB_DIR_IN);
err = 0;
ret = usbhid_wait_io(hid);
while (ret) {
err |= ret;
if (test_bit(HID_CTRL_RUNNING, &usbhid->iofl))
usb_kill_urb(usbhid->urbctrl);
if (test_bit(HID_OUT_RUNNING, &usbhid->iofl))
usb_kill_urb(usbhid->urbout);
ret = usbhid_wait_io(hid);
}
if (err)
hid_warn(hid, "timeout initializing reports\n");
}
/*
* Reset LEDs which BIOS might have left on. For now, just NumLock (0x01).
*/
static int hid_find_field_early(struct hid_device *hid, unsigned int page,
unsigned int hid_code, struct hid_field **pfield)
{
struct hid_report *report;
struct hid_field *field;
struct hid_usage *usage;
int i, j;
list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
for (i = 0; i < report->maxfield; i++) {
field = report->field[i];
for (j = 0; j < field->maxusage; j++) {
usage = &field->usage[j];
if ((usage->hid & HID_USAGE_PAGE) == page &&
(usage->hid & 0xFFFF) == hid_code) {
*pfield = field;
return j;
}
}
}
}
return -1;
}
static void usbhid_set_leds(struct hid_device *hid)
{
struct hid_field *field;
int offset;
if ((offset = hid_find_field_early(hid, HID_UP_LED, 0x01, &field)) != -1) {
hid_set_field(field, offset, 0);
usbhid_submit_report(hid, field->report, USB_DIR_OUT);
}
}
/*
* Traverse the supplied list of reports and find the longest
*/
static void hid_find_max_report(struct hid_device *hid, unsigned int type,
unsigned int *max)
{
struct hid_report *report;
unsigned int size;
list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
size = ((report->size - 1) >> 3) + 1 + hid->report_enum[type].numbered;
if (*max < size)
*max = size;
}
}
static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
usbhid->inbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->inbuf_dma);
usbhid->outbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->outbuf_dma);
usbhid->cr = kmalloc(sizeof(*usbhid->cr), GFP_KERNEL);
usbhid->ctrlbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->ctrlbuf_dma);
if (!usbhid->inbuf || !usbhid->outbuf || !usbhid->cr ||
!usbhid->ctrlbuf)
return -1;
return 0;
}
static int usbhid_get_raw_report(struct hid_device *hid,
unsigned char report_number, __u8 *buf, size_t count,
unsigned char report_type)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
struct usb_interface *intf = usbhid->intf;
struct usb_host_interface *interface = intf->cur_altsetting;
int skipped_report_id = 0;
int ret;
/* Byte 0 is the report number. Report data starts at byte 1.*/
buf[0] = report_number;
if (report_number == 0x0) {
/* Offset the return buffer by 1, so that the report ID
will remain in byte 0. */
buf++;
count--;
skipped_report_id = 1;
}
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
HID_REQ_GET_REPORT,
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
((report_type + 1) << 8) | report_number,
interface->desc.bInterfaceNumber, buf, count,
USB_CTRL_SET_TIMEOUT);
/* count also the report id */
if (ret > 0 && skipped_report_id)
ret++;
return ret;
}
static int usbhid_set_raw_report(struct hid_device *hid, unsigned int reportnum,
__u8 *buf, size_t count, unsigned char rtype)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
struct usb_interface *intf = usbhid->intf;
struct usb_host_interface *interface = intf->cur_altsetting;
int ret, skipped_report_id = 0;
/* Byte 0 is the report number. Report data starts at byte 1.*/
if ((rtype == HID_OUTPUT_REPORT) &&
(hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORT_ID))
buf[0] = 0;
else
buf[0] = reportnum;
if (buf[0] == 0x0) {
/* Don't send the Report ID */
buf++;
count--;
skipped_report_id = 1;
}
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
((rtype + 1) << 8) | reportnum,
interface->desc.bInterfaceNumber, buf, count,
USB_CTRL_SET_TIMEOUT);
/* count also the report id, if this was a numbered report. */
if (ret > 0 && skipped_report_id)
ret++;
return ret;
}
static int usbhid_output_report(struct hid_device *hid, __u8 *buf, size_t count)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
int actual_length, skipped_report_id = 0, ret;
if (!usbhid->urbout)
return -ENOSYS;
if (buf[0] == 0x0) {
/* Don't send the Report ID */
buf++;
count--;
skipped_report_id = 1;
}
ret = usb_interrupt_msg(dev, usbhid->urbout->pipe,
buf, count, &actual_length,
USB_CTRL_SET_TIMEOUT);
/* return the number of bytes transferred */
if (ret == 0) {
ret = actual_length;
/* count also the report id */
if (skipped_report_id)
ret++;
}
return ret;
}
static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
usb_free_coherent(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
usb_free_coherent(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
kfree(usbhid->cr);
usb_free_coherent(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
}
static int usbhid_parse(struct hid_device *hid)
{
struct usb_interface *intf = to_usb_interface(hid->dev.parent);
struct usb_host_interface *interface = intf->cur_altsetting;
struct usb_device *dev = interface_to_usbdev (intf);
struct hid_descriptor *hdesc;
u32 quirks = 0;
unsigned int rsize = 0;
char *rdesc;
int ret, n;
int num_descriptors;
size_t offset = offsetof(struct hid_descriptor, desc);
quirks = hid_lookup_quirk(hid);
if (quirks & HID_QUIRK_IGNORE)
return -ENODEV;
/* Many keyboards and mice don't like to be polled for reports,
* so we will always set the HID_QUIRK_NOGET flag for them. */
if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {
if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD ||
interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE)
quirks |= HID_QUIRK_NOGET;
}
if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&
(!interface->desc.bNumEndpoints ||
usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
dbg_hid("class descriptor not present\n");
return -ENODEV;
}
if (hdesc->bLength < sizeof(struct hid_descriptor)) {
dbg_hid("hid descriptor is too short\n");
return -EINVAL;
}
hid->version = le16_to_cpu(hdesc->bcdHID);
hid->country = hdesc->bCountryCode;
num_descriptors = min_t(int, hdesc->bNumDescriptors,
(hdesc->bLength - offset) / sizeof(struct hid_class_descriptor));
for (n = 0; n < num_descriptors; n++)
if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
dbg_hid("weird size of report descriptor (%u)\n", rsize);
return -EINVAL;
}
rdesc = kmalloc(rsize, GFP_KERNEL);
if (!rdesc)
return -ENOMEM;
hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
ret = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber,
HID_DT_REPORT, rdesc, rsize);
if (ret < 0) {
dbg_hid("reading report descriptor failed\n");
kfree(rdesc);
goto err;
}
ret = hid_parse_report(hid, rdesc, rsize);
kfree(rdesc);
if (ret) {
dbg_hid("parsing report descriptor failed\n");
goto err;
}
hid->quirks |= quirks;
return 0;
err:
return ret;
}
static int usbhid_start(struct hid_device *hid)
{
struct usb_interface *intf = to_usb_interface(hid->dev.parent);
struct usb_host_interface *interface = intf->cur_altsetting;
struct usb_device *dev = interface_to_usbdev(intf);
struct usbhid_device *usbhid = hid->driver_data;
unsigned int n, insize = 0;
int ret;
mutex_lock(&usbhid->mutex);
clear_bit(HID_DISCONNECTED, &usbhid->iofl);
usbhid->bufsize = HID_MIN_BUFFER_SIZE;
hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize);
hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize);
hid_find_max_report(hid, HID_FEATURE_REPORT, &usbhid->bufsize);
if (usbhid->bufsize > HID_MAX_BUFFER_SIZE)
usbhid->bufsize = HID_MAX_BUFFER_SIZE;
hid_find_max_report(hid, HID_INPUT_REPORT, &insize);
if (insize > HID_MAX_BUFFER_SIZE)
insize = HID_MAX_BUFFER_SIZE;
if (hid_alloc_buffers(dev, hid)) {
ret = -ENOMEM;
goto fail;
}
for (n = 0; n < interface->desc.bNumEndpoints; n++) {
struct usb_endpoint_descriptor *endpoint;
int pipe;
int interval;
endpoint = &interface->endpoint[n].desc;
if (!usb_endpoint_xfer_int(endpoint))
continue;
interval = endpoint->bInterval;
/* Some vendors give fullspeed interval on highspeed devides */
if (hid->quirks & HID_QUIRK_FULLSPEED_INTERVAL &&
dev->speed == USB_SPEED_HIGH) {
interval = fls(endpoint->bInterval*8);
pr_info("%s: Fixing fullspeed to highspeed interval: %d -> %d\n",
hid->name, endpoint->bInterval, interval);
}
/* Change the polling interval of mice, joysticks
* and keyboards.
*/
switch (hid->collection->usage) {
case HID_GD_MOUSE:
if (hid_mousepoll_interval > 0)
interval = hid_mousepoll_interval;
break;
case HID_GD_JOYSTICK:
if (hid_jspoll_interval > 0)
interval = hid_jspoll_interval;
break;
case HID_GD_KEYBOARD:
if (hid_kbpoll_interval > 0)
interval = hid_kbpoll_interval;
break;
}
ret = -ENOMEM;
if (usb_endpoint_dir_in(endpoint)) {
if (usbhid->urbin)
continue;
if (!(usbhid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
usb_fill_int_urb(usbhid->urbin, dev, pipe, usbhid->inbuf, insize,
hid_irq_in, hid, interval);
usbhid->urbin->transfer_dma = usbhid->inbuf_dma;
usbhid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
} else {
if (usbhid->urbout)
continue;
if (!(usbhid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
usb_fill_int_urb(usbhid->urbout, dev, pipe, usbhid->outbuf, 0,
hid_irq_out, hid, interval);
usbhid->urbout->transfer_dma = usbhid->outbuf_dma;
usbhid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
}
}
usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
if (!usbhid->urbctrl) {
ret = -ENOMEM;
goto fail;
}
usb_fill_control_urb(usbhid->urbctrl, dev, 0, (void *) usbhid->cr,
usbhid->ctrlbuf, 1, hid_ctrl, hid);
usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma;
usbhid->urbctrl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
set_bit(HID_STARTED, &usbhid->iofl);
if (hid->quirks & HID_QUIRK_ALWAYS_POLL) {
ret = usb_autopm_get_interface(usbhid->intf);
if (ret)
goto fail;
set_bit(HID_IN_POLLING, &usbhid->iofl);
usbhid->intf->needs_remote_wakeup = 1;
ret = hid_start_in(hid);
if (ret) {
dev_err(&hid->dev,
"failed to start in urb: %d\n", ret);
}
usb_autopm_put_interface(usbhid->intf);
}
/* Some keyboards don't work until their LEDs have been set.
* Since BIOSes do set the LEDs, it must be safe for any device
* that supports the keyboard boot protocol.
* In addition, enable remote wakeup by default for all keyboard
* devices supporting the boot protocol.
*/
if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT &&
interface->desc.bInterfaceProtocol ==
USB_INTERFACE_PROTOCOL_KEYBOARD) {
usbhid_set_leds(hid);
device_set_wakeup_enable(&dev->dev, 1);
}
mutex_unlock(&usbhid->mutex);
return 0;
fail:
usb_free_urb(usbhid->urbin);
usb_free_urb(usbhid->urbout);
usb_free_urb(usbhid->urbctrl);
usbhid->urbin = NULL;
usbhid->urbout = NULL;
usbhid->urbctrl = NULL;
hid_free_buffers(dev, hid);
mutex_unlock(&usbhid->mutex);
return ret;
}
static void usbhid_stop(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
if (WARN_ON(!usbhid))
return;
if (hid->quirks & HID_QUIRK_ALWAYS_POLL) {
clear_bit(HID_IN_POLLING, &usbhid->iofl);
usbhid->intf->needs_remote_wakeup = 0;
}
mutex_lock(&usbhid->mutex);
clear_bit(HID_STARTED, &usbhid->iofl);
spin_lock_irq(&usbhid->lock); /* Sync with error and led handlers */
set_bit(HID_DISCONNECTED, &usbhid->iofl);
while (usbhid->ctrltail != usbhid->ctrlhead) {
if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_OUT) {
kfree(usbhid->ctrl[usbhid->ctrltail].raw_report);
usbhid->ctrl[usbhid->ctrltail].raw_report = NULL;
}
usbhid->ctrltail = (usbhid->ctrltail + 1) &
(HID_CONTROL_FIFO_SIZE - 1);
}
spin_unlock_irq(&usbhid->lock);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbout);
usb_kill_urb(usbhid->urbctrl);
hid_cancel_delayed_stuff(usbhid);
hid->claimed = 0;
usb_free_urb(usbhid->urbin);
usb_free_urb(usbhid->urbctrl);
usb_free_urb(usbhid->urbout);
usbhid->urbin = NULL; /* don't mess up next start */
usbhid->urbctrl = NULL;
usbhid->urbout = NULL;
hid_free_buffers(hid_to_usb_dev(hid), hid);
mutex_unlock(&usbhid->mutex);
}
static int usbhid_power(struct hid_device *hid, int lvl)
{
struct usbhid_device *usbhid = hid->driver_data;
int r = 0;
switch (lvl) {
case PM_HINT_FULLON:
r = usb_autopm_get_interface(usbhid->intf);
break;
case PM_HINT_NORMAL:
usb_autopm_put_interface(usbhid->intf);
break;
}
return r;
}
static void usbhid_request(struct hid_device *hid, struct hid_report *rep, int reqtype)
{
switch (reqtype) {
case HID_REQ_GET_REPORT:
usbhid_submit_report(hid, rep, USB_DIR_IN);
break;
case HID_REQ_SET_REPORT:
usbhid_submit_report(hid, rep, USB_DIR_OUT);
break;
}
}
static int usbhid_raw_request(struct hid_device *hid, unsigned char reportnum,
__u8 *buf, size_t len, unsigned char rtype,
int reqtype)
{
switch (reqtype) {
case HID_REQ_GET_REPORT:
return usbhid_get_raw_report(hid, reportnum, buf, len, rtype);
case HID_REQ_SET_REPORT:
return usbhid_set_raw_report(hid, reportnum, buf, len, rtype);
default:
return -EIO;
}
}
static int usbhid_idle(struct hid_device *hid, int report, int idle,
int reqtype)
{
struct usb_device *dev = hid_to_usb_dev(hid);
struct usb_interface *intf = to_usb_interface(hid->dev.parent);
struct usb_host_interface *interface = intf->cur_altsetting;
int ifnum = interface->desc.bInterfaceNumber;
if (reqtype != HID_REQ_SET_IDLE)
return -EINVAL;
return hid_set_idle(dev, ifnum, report, idle);
}
static bool usbhid_may_wakeup(struct hid_device *hid)
{
struct usb_device *dev = hid_to_usb_dev(hid);
return device_may_wakeup(&dev->dev);
}
static const struct hid_ll_driver usb_hid_driver = {
.parse = usbhid_parse,
.start = usbhid_start,
.stop = usbhid_stop,
.open = usbhid_open,
.close = usbhid_close,
.power = usbhid_power,
.request = usbhid_request,
.wait = usbhid_wait_io,
.raw_request = usbhid_raw_request,
.output_report = usbhid_output_report,
.idle = usbhid_idle,
.may_wakeup = usbhid_may_wakeup,
};
bool hid_is_usb(const struct hid_device *hdev)
{
return hdev->ll_driver == &usb_hid_driver;
}
EXPORT_SYMBOL_GPL(hid_is_usb);
static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_host_interface *interface = intf->cur_altsetting;
struct usb_device *dev = interface_to_usbdev(intf);
struct usbhid_device *usbhid;
struct hid_device *hid;
unsigned int n, has_in = 0;
size_t len;
int ret;
dbg_hid("HID probe called for ifnum %d\n",
intf->altsetting->desc.bInterfaceNumber);
for (n = 0; n < interface->desc.bNumEndpoints; n++)
if (usb_endpoint_is_int_in(&interface->endpoint[n].desc))
has_in++;
if (!has_in) {
hid_err(intf, "couldn't find an input interrupt endpoint\n");
return -ENODEV;
}
hid = hid_allocate_device();
if (IS_ERR(hid))
return PTR_ERR(hid);
usb_set_intfdata(intf, hid);
hid->ll_driver = &usb_hid_driver;
hid->ff_init = hid_pidff_init;
#ifdef CONFIG_USB_HIDDEV
hid->hiddev_connect = hiddev_connect;
hid->hiddev_disconnect = hiddev_disconnect;
hid->hiddev_hid_event = hiddev_hid_event;
hid->hiddev_report_event = hiddev_report_event;
#endif
hid->dev.parent = &intf->dev;
hid->bus = BUS_USB;
hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
hid->product = le16_to_cpu(dev->descriptor.idProduct);
hid->version = le16_to_cpu(dev->descriptor.bcdDevice);
hid->name[0] = 0;
if (intf->cur_altsetting->desc.bInterfaceProtocol ==
USB_INTERFACE_PROTOCOL_MOUSE)
hid->type = HID_TYPE_USBMOUSE;
else if (intf->cur_altsetting->desc.bInterfaceProtocol == 0)
hid->type = HID_TYPE_USBNONE;
if (dev->manufacturer)
strscpy(hid->name, dev->manufacturer, sizeof(hid->name));
if (dev->product) {
if (dev->manufacturer)
strlcat(hid->name, " ", sizeof(hid->name));
strlcat(hid->name, dev->product, sizeof(hid->name));
}
if (!strlen(hid->name))
snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
usb_make_path(dev, hid->phys, sizeof(hid->phys));
strlcat(hid->phys, "/input", sizeof(hid->phys));
len = strlen(hid->phys);
if (len < sizeof(hid->phys) - 1)
snprintf(hid->phys + len, sizeof(hid->phys) - len,
"%d", intf->altsetting[0].desc.bInterfaceNumber);
if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
hid->uniq[0] = 0;
usbhid = kzalloc(sizeof(*usbhid), GFP_KERNEL);
if (usbhid == NULL) {
ret = -ENOMEM;
goto err;
}
hid->driver_data = usbhid;
usbhid->hid = hid;
usbhid->intf = intf;
usbhid->ifnum = interface->desc.bInterfaceNumber;
init_waitqueue_head(&usbhid->wait);
INIT_WORK(&usbhid->reset_work, hid_reset);
timer_setup(&usbhid->io_retry, hid_retry_timeout, 0);
spin_lock_init(&usbhid->lock);
mutex_init(&usbhid->mutex);
ret = hid_add_device(hid);
if (ret) {
if (ret != -ENODEV)
hid_err(intf, "can't add hid device: %d\n", ret);
goto err_free;
}
return 0;
err_free:
kfree(usbhid);
err:
hid_destroy_device(hid);
return ret;
}
static void usbhid_disconnect(struct usb_interface *intf)
{
struct hid_device *hid = usb_get_intfdata(intf);
struct usbhid_device *usbhid;
if (WARN_ON(!hid))
return;
usbhid = hid->driver_data;
spin_lock_irq(&usbhid->lock); /* Sync with error and led handlers */
set_bit(HID_DISCONNECTED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
hid_destroy_device(hid);
kfree(usbhid);
}
static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
{
del_timer_sync(&usbhid->io_retry);
cancel_work_sync(&usbhid->reset_work);
}
static void hid_cease_io(struct usbhid_device *usbhid)
{
del_timer_sync(&usbhid->io_retry);
usb_kill_urb(usbhid->urbin);
usb_kill_urb(usbhid->urbctrl);
usb_kill_urb(usbhid->urbout);
}
static void hid_restart_io(struct hid_device *hid)
{
struct usbhid_device *usbhid = hid->driver_data;
int clear_halt = test_bit(HID_CLEAR_HALT, &usbhid->iofl);
int reset_pending = test_bit(HID_RESET_PENDING, &usbhid->iofl);
spin_lock_irq(&usbhid->lock);
clear_bit(HID_SUSPENDED, &usbhid->iofl);
usbhid_mark_busy(usbhid);
if (clear_halt || reset_pending)
schedule_work(&usbhid->reset_work);
usbhid->retry_delay = 0;
spin_unlock_irq(&usbhid->lock);
if (reset_pending || !test_bit(HID_STARTED, &usbhid->iofl))
return;
if (!clear_halt) {
if (hid_start_in(hid) < 0)
hid_io_error(hid);
}
spin_lock_irq(&usbhid->lock);
if (usbhid->urbout && !test_bit(HID_OUT_RUNNING, &usbhid->iofl))
usbhid_restart_out_queue(usbhid);
if (!test_bit(HID_CTRL_RUNNING, &usbhid->iofl))
usbhid_restart_ctrl_queue(usbhid);
spin_unlock_irq(&usbhid->lock);
}
/* Treat USB reset pretty much the same as suspend/resume */
static int hid_pre_reset(struct usb_interface *intf)
{
struct hid_device *hid = usb_get_intfdata(intf);
struct usbhid_device *usbhid = hid->driver_data;
spin_lock_irq(&usbhid->lock);
set_bit(HID_RESET_PENDING, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
hid_cease_io(usbhid);
return 0;
}
/* Same routine used for post_reset and reset_resume */
static int hid_post_reset(struct usb_interface *intf)
{
struct usb_device *dev = interface_to_usbdev (intf);
struct hid_device *hid = usb_get_intfdata(intf);
struct usbhid_device *usbhid = hid->driver_data;
struct usb_host_interface *interface = intf->cur_altsetting;
int status;
char *rdesc;
/* Fetch and examine the HID report descriptor. If this
* has changed, then rebind. Since usbcore's check of the
* configuration descriptors passed, we already know that
* the size of the HID report descriptor has not changed.
*/
rdesc = kmalloc(hid->dev_rsize, GFP_KERNEL);
if (!rdesc)
return -ENOMEM;
status = hid_get_class_descriptor(dev,
interface->desc.bInterfaceNumber,
HID_DT_REPORT, rdesc, hid->dev_rsize);
if (status < 0) {
dbg_hid("reading report descriptor failed (post_reset)\n");
kfree(rdesc);
return status;
}
status = memcmp(rdesc, hid->dev_rdesc, hid->dev_rsize);
kfree(rdesc);
if (status != 0) {
dbg_hid("report descriptor changed\n");
return -EPERM;
}
/* No need to do another reset or clear a halted endpoint */
spin_lock_irq(&usbhid->lock);
clear_bit(HID_RESET_PENDING, &usbhid->iofl);
clear_bit(HID_CLEAR_HALT, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
hid_restart_io(hid);
return 0;
}
#ifdef CONFIG_PM
static int hid_resume_common(struct hid_device *hid, bool driver_suspended)
{
int status = 0;
hid_restart_io(hid);
if (driver_suspended)
status = hid_driver_resume(hid);
return status;
}
static int hid_suspend(struct usb_interface *intf, pm_message_t message)
{
struct hid_device *hid = usb_get_intfdata(intf);
struct usbhid_device *usbhid = hid->driver_data;
int status = 0;
bool driver_suspended = false;
unsigned int ledcount;
if (PMSG_IS_AUTO(message)) {
ledcount = hidinput_count_leds(hid);
spin_lock_irq(&usbhid->lock); /* Sync with error handler */
if (!test_bit(HID_RESET_PENDING, &usbhid->iofl)
&& !test_bit(HID_CLEAR_HALT, &usbhid->iofl)
&& !test_bit(HID_OUT_RUNNING, &usbhid->iofl)
&& !test_bit(HID_CTRL_RUNNING, &usbhid->iofl)
&& !test_bit(HID_KEYS_PRESSED, &usbhid->iofl)
&& (!ledcount || ignoreled))
{
set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
status = hid_driver_suspend(hid, message);
if (status < 0)
goto failed;
driver_suspended = true;
} else {
usbhid_mark_busy(usbhid);
spin_unlock_irq(&usbhid->lock);
return -EBUSY;
}
} else {
/* TODO: resume() might need to handle suspend failure */
status = hid_driver_suspend(hid, message);
driver_suspended = true;
spin_lock_irq(&usbhid->lock);
set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
if (usbhid_wait_io(hid) < 0)
status = -EIO;
}
hid_cancel_delayed_stuff(usbhid);
hid_cease_io(usbhid);
if (PMSG_IS_AUTO(message) && test_bit(HID_KEYS_PRESSED, &usbhid->iofl)) {
/* lost race against keypresses */
status = -EBUSY;
goto failed;
}
dev_dbg(&intf->dev, "suspend\n");
return status;
failed:
hid_resume_common(hid, driver_suspended);
return status;
}
static int hid_resume(struct usb_interface *intf)
{
struct hid_device *hid = usb_get_intfdata (intf);
int status;
status = hid_resume_common(hid, true);
dev_dbg(&intf->dev, "resume status %d\n", status);
return 0;
}
static int hid_reset_resume(struct usb_interface *intf)
{
struct hid_device *hid = usb_get_intfdata(intf);
int status;
status = hid_post_reset(intf);
if (status >= 0) {
int ret = hid_driver_reset_resume(hid);
if (ret < 0)
status = ret;
}
return status;
}
#endif /* CONFIG_PM */
static const struct usb_device_id hid_usb_ids[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
.bInterfaceClass = USB_INTERFACE_CLASS_HID },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, hid_usb_ids);
static struct usb_driver hid_driver = {
.name = "usbhid",
.probe = usbhid_probe,
.disconnect = usbhid_disconnect,
#ifdef CONFIG_PM
.suspend = hid_suspend,
.resume = hid_resume,
.reset_resume = hid_reset_resume,
#endif
.pre_reset = hid_pre_reset,
.post_reset = hid_post_reset,
.id_table = hid_usb_ids,
.supports_autosuspend = 1,
};
struct usb_interface *usbhid_find_interface(int minor)
{
return usb_find_interface(&hid_driver, minor);
}
static int __init hid_init(void)
{
int retval;
retval = hid_quirks_init(quirks_param, BUS_USB, MAX_USBHID_BOOT_QUIRKS);
if (retval)
goto usbhid_quirks_init_fail;
retval = usb_register(&hid_driver);
if (retval)
goto usb_register_fail;
pr_info(KBUILD_MODNAME ": " DRIVER_DESC "\n");
return 0;
usb_register_fail:
hid_quirks_exit(BUS_USB);
usbhid_quirks_init_fail:
return retval;
}
static void __exit hid_exit(void)
{
usb_deregister(&hid_driver);
hid_quirks_exit(BUS_USB);
}
module_init(hid_init);
module_exit(hid_exit);
MODULE_AUTHOR("Andreas Gal");
MODULE_AUTHOR("Vojtech Pavlik");
MODULE_AUTHOR("Jiri Kosina");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/usbhid/hid-core.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 1999-2001 Vojtech Pavlik
*
* USB HIDBP Keyboard support
*/
/*
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <[email protected]>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb/input.h>
#include <linux/hid.h>
/*
* Version Information
*/
#define DRIVER_VERSION ""
#define DRIVER_AUTHOR "Vojtech Pavlik <[email protected]>"
#define DRIVER_DESC "USB HID Boot Protocol keyboard driver"
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
static const unsigned char usb_kbd_keycode[256] = {
0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
150,158,159,128,136,177,178,176,142,152,173,140
};
/**
* struct usb_kbd - state of each attached keyboard
* @dev: input device associated with this keyboard
* @usbdev: usb device associated with this keyboard
* @old: data received in the past from the @irq URB representing which
* keys were pressed. By comparing with the current list of keys
* that are pressed, we are able to see key releases.
* @irq: URB for receiving a list of keys that are pressed when a
* new key is pressed or a key that was pressed is released.
* @led: URB for sending LEDs (e.g. numlock, ...)
* @newleds: data that will be sent with the @led URB representing which LEDs
* should be on
* @name: Name of the keyboard. @dev's name field points to this buffer
* @phys: Physical path of the keyboard. @dev's phys field points to this
* buffer
* @new: Buffer for the @irq URB
* @cr: Control request for @led URB
* @leds: Buffer for the @led URB
* @new_dma: DMA address for @irq URB
* @leds_dma: DMA address for @led URB
* @leds_lock: spinlock that protects @leds, @newleds, and @led_urb_submitted
* @led_urb_submitted: indicates whether @led is in progress, i.e. it has been
* submitted and its completion handler has not returned yet
* without resubmitting @led
*/
struct usb_kbd {
struct input_dev *dev;
struct usb_device *usbdev;
unsigned char old[8];
struct urb *irq, *led;
unsigned char newleds;
char name[128];
char phys[64];
unsigned char *new;
struct usb_ctrlrequest *cr;
unsigned char *leds;
dma_addr_t new_dma;
dma_addr_t leds_dma;
spinlock_t leds_lock;
bool led_urb_submitted;
};
static void usb_kbd_irq(struct urb *urb)
{
struct usb_kbd *kbd = urb->context;
int i;
switch (urb->status) {
case 0: /* success */
break;
case -ECONNRESET: /* unlink */
case -ENOENT:
case -ESHUTDOWN:
return;
/* -EPIPE: should clear the halt */
default: /* error */
goto resubmit;
}
for (i = 0; i < 8; i++)
input_report_key(kbd->dev, usb_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1);
for (i = 2; i < 8; i++) {
if (kbd->old[i] > 3 && memscan(kbd->new + 2, kbd->old[i], 6) == kbd->new + 8) {
if (usb_kbd_keycode[kbd->old[i]])
input_report_key(kbd->dev, usb_kbd_keycode[kbd->old[i]], 0);
else
hid_info(urb->dev,
"Unknown key (scancode %#x) released.\n",
kbd->old[i]);
}
if (kbd->new[i] > 3 && memscan(kbd->old + 2, kbd->new[i], 6) == kbd->old + 8) {
if (usb_kbd_keycode[kbd->new[i]])
input_report_key(kbd->dev, usb_kbd_keycode[kbd->new[i]], 1);
else
hid_info(urb->dev,
"Unknown key (scancode %#x) pressed.\n",
kbd->new[i]);
}
}
input_sync(kbd->dev);
memcpy(kbd->old, kbd->new, 8);
resubmit:
i = usb_submit_urb (urb, GFP_ATOMIC);
if (i)
hid_err(urb->dev, "can't resubmit intr, %s-%s/input0, status %d",
kbd->usbdev->bus->bus_name,
kbd->usbdev->devpath, i);
}
static int usb_kbd_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
unsigned long flags;
struct usb_kbd *kbd = input_get_drvdata(dev);
if (type != EV_LED)
return -1;
spin_lock_irqsave(&kbd->leds_lock, flags);
kbd->newleds = (!!test_bit(LED_KANA, dev->led) << 3) | (!!test_bit(LED_COMPOSE, dev->led) << 3) |
(!!test_bit(LED_SCROLLL, dev->led) << 2) | (!!test_bit(LED_CAPSL, dev->led) << 1) |
(!!test_bit(LED_NUML, dev->led));
if (kbd->led_urb_submitted){
spin_unlock_irqrestore(&kbd->leds_lock, flags);
return 0;
}
if (*(kbd->leds) == kbd->newleds){
spin_unlock_irqrestore(&kbd->leds_lock, flags);
return 0;
}
*(kbd->leds) = kbd->newleds;
kbd->led->dev = kbd->usbdev;
if (usb_submit_urb(kbd->led, GFP_ATOMIC))
pr_err("usb_submit_urb(leds) failed\n");
else
kbd->led_urb_submitted = true;
spin_unlock_irqrestore(&kbd->leds_lock, flags);
return 0;
}
static void usb_kbd_led(struct urb *urb)
{
unsigned long flags;
struct usb_kbd *kbd = urb->context;
if (urb->status)
hid_warn(urb->dev, "led urb status %d received\n",
urb->status);
spin_lock_irqsave(&kbd->leds_lock, flags);
if (*(kbd->leds) == kbd->newleds){
kbd->led_urb_submitted = false;
spin_unlock_irqrestore(&kbd->leds_lock, flags);
return;
}
*(kbd->leds) = kbd->newleds;
kbd->led->dev = kbd->usbdev;
if (usb_submit_urb(kbd->led, GFP_ATOMIC)){
hid_err(urb->dev, "usb_submit_urb(leds) failed\n");
kbd->led_urb_submitted = false;
}
spin_unlock_irqrestore(&kbd->leds_lock, flags);
}
static int usb_kbd_open(struct input_dev *dev)
{
struct usb_kbd *kbd = input_get_drvdata(dev);
kbd->irq->dev = kbd->usbdev;
if (usb_submit_urb(kbd->irq, GFP_KERNEL))
return -EIO;
return 0;
}
static void usb_kbd_close(struct input_dev *dev)
{
struct usb_kbd *kbd = input_get_drvdata(dev);
usb_kill_urb(kbd->irq);
}
static int usb_kbd_alloc_mem(struct usb_device *dev, struct usb_kbd *kbd)
{
if (!(kbd->irq = usb_alloc_urb(0, GFP_KERNEL)))
return -1;
if (!(kbd->led = usb_alloc_urb(0, GFP_KERNEL)))
return -1;
if (!(kbd->new = usb_alloc_coherent(dev, 8, GFP_KERNEL, &kbd->new_dma)))
return -1;
if (!(kbd->cr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL)))
return -1;
if (!(kbd->leds = usb_alloc_coherent(dev, 1, GFP_KERNEL, &kbd->leds_dma)))
return -1;
return 0;
}
static void usb_kbd_free_mem(struct usb_device *dev, struct usb_kbd *kbd)
{
usb_free_urb(kbd->irq);
usb_free_urb(kbd->led);
usb_free_coherent(dev, 8, kbd->new, kbd->new_dma);
kfree(kbd->cr);
usb_free_coherent(dev, 1, kbd->leds, kbd->leds_dma);
}
static int usb_kbd_probe(struct usb_interface *iface,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(iface);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_kbd *kbd;
struct input_dev *input_dev;
int i, pipe, maxp;
int error = -ENOMEM;
interface = iface->cur_altsetting;
if (interface->desc.bNumEndpoints != 1)
return -ENODEV;
endpoint = &interface->endpoint[0].desc;
if (!usb_endpoint_is_int_in(endpoint))
return -ENODEV;
pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
maxp = usb_maxpacket(dev, pipe);
kbd = kzalloc(sizeof(struct usb_kbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!kbd || !input_dev)
goto fail1;
if (usb_kbd_alloc_mem(dev, kbd))
goto fail2;
kbd->usbdev = dev;
kbd->dev = input_dev;
spin_lock_init(&kbd->leds_lock);
if (dev->manufacturer)
strscpy(kbd->name, dev->manufacturer, sizeof(kbd->name));
if (dev->product) {
if (dev->manufacturer)
strlcat(kbd->name, " ", sizeof(kbd->name));
strlcat(kbd->name, dev->product, sizeof(kbd->name));
}
if (!strlen(kbd->name))
snprintf(kbd->name, sizeof(kbd->name),
"USB HIDBP Keyboard %04x:%04x",
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
usb_make_path(dev, kbd->phys, sizeof(kbd->phys));
strlcat(kbd->phys, "/input0", sizeof(kbd->phys));
input_dev->name = kbd->name;
input_dev->phys = kbd->phys;
usb_to_input_id(dev, &input_dev->id);
input_dev->dev.parent = &iface->dev;
input_set_drvdata(input_dev, kbd);
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
BIT_MASK(EV_REP);
input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_COMPOSE) |
BIT_MASK(LED_KANA);
for (i = 0; i < 255; i++)
set_bit(usb_kbd_keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
input_dev->event = usb_kbd_event;
input_dev->open = usb_kbd_open;
input_dev->close = usb_kbd_close;
usb_fill_int_urb(kbd->irq, dev, pipe,
kbd->new, (maxp > 8 ? 8 : maxp),
usb_kbd_irq, kbd, endpoint->bInterval);
kbd->irq->transfer_dma = kbd->new_dma;
kbd->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
kbd->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE;
kbd->cr->bRequest = 0x09;
kbd->cr->wValue = cpu_to_le16(0x200);
kbd->cr->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
kbd->cr->wLength = cpu_to_le16(1);
usb_fill_control_urb(kbd->led, dev, usb_sndctrlpipe(dev, 0),
(void *) kbd->cr, kbd->leds, 1,
usb_kbd_led, kbd);
kbd->led->transfer_dma = kbd->leds_dma;
kbd->led->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
error = input_register_device(kbd->dev);
if (error)
goto fail2;
usb_set_intfdata(iface, kbd);
device_set_wakeup_enable(&dev->dev, 1);
return 0;
fail2:
usb_kbd_free_mem(dev, kbd);
fail1:
input_free_device(input_dev);
kfree(kbd);
return error;
}
static void usb_kbd_disconnect(struct usb_interface *intf)
{
struct usb_kbd *kbd = usb_get_intfdata (intf);
usb_set_intfdata(intf, NULL);
if (kbd) {
usb_kill_urb(kbd->irq);
input_unregister_device(kbd->dev);
usb_kill_urb(kbd->led);
usb_kbd_free_mem(interface_to_usbdev(intf), kbd);
kfree(kbd);
}
}
static const struct usb_device_id usb_kbd_id_table[] = {
{ USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
USB_INTERFACE_PROTOCOL_KEYBOARD) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, usb_kbd_id_table);
static struct usb_driver usb_kbd_driver = {
.name = "usbkbd",
.probe = usb_kbd_probe,
.disconnect = usb_kbd_disconnect,
.id_table = usb_kbd_id_table,
};
module_usb_driver(usb_kbd_driver);
| linux-master | drivers/hid/usbhid/usbkbd.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback driver for USB HID PID compliant devices
*
* Copyright (c) 2005, 2006 Anssi Hannula <[email protected]>
*/
/*
*/
/* #define DEBUG */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include "usbhid.h"
#define PID_EFFECTS_MAX 64
/* Report usage table used to put reports into an array */
#define PID_SET_EFFECT 0
#define PID_EFFECT_OPERATION 1
#define PID_DEVICE_GAIN 2
#define PID_POOL 3
#define PID_BLOCK_LOAD 4
#define PID_BLOCK_FREE 5
#define PID_DEVICE_CONTROL 6
#define PID_CREATE_NEW_EFFECT 7
#define PID_REQUIRED_REPORTS 7
#define PID_SET_ENVELOPE 8
#define PID_SET_CONDITION 9
#define PID_SET_PERIODIC 10
#define PID_SET_CONSTANT 11
#define PID_SET_RAMP 12
static const u8 pidff_reports[] = {
0x21, 0x77, 0x7d, 0x7f, 0x89, 0x90, 0x96, 0xab,
0x5a, 0x5f, 0x6e, 0x73, 0x74
};
/* device_control is really 0x95, but 0x96 specified as it is the usage of
the only field in that report */
/* Value usage tables used to put fields and values into arrays */
#define PID_EFFECT_BLOCK_INDEX 0
#define PID_DURATION 1
#define PID_GAIN 2
#define PID_TRIGGER_BUTTON 3
#define PID_TRIGGER_REPEAT_INT 4
#define PID_DIRECTION_ENABLE 5
#define PID_START_DELAY 6
static const u8 pidff_set_effect[] = {
0x22, 0x50, 0x52, 0x53, 0x54, 0x56, 0xa7
};
#define PID_ATTACK_LEVEL 1
#define PID_ATTACK_TIME 2
#define PID_FADE_LEVEL 3
#define PID_FADE_TIME 4
static const u8 pidff_set_envelope[] = { 0x22, 0x5b, 0x5c, 0x5d, 0x5e };
#define PID_PARAM_BLOCK_OFFSET 1
#define PID_CP_OFFSET 2
#define PID_POS_COEFFICIENT 3
#define PID_NEG_COEFFICIENT 4
#define PID_POS_SATURATION 5
#define PID_NEG_SATURATION 6
#define PID_DEAD_BAND 7
static const u8 pidff_set_condition[] = {
0x22, 0x23, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65
};
#define PID_MAGNITUDE 1
#define PID_OFFSET 2
#define PID_PHASE 3
#define PID_PERIOD 4
static const u8 pidff_set_periodic[] = { 0x22, 0x70, 0x6f, 0x71, 0x72 };
static const u8 pidff_set_constant[] = { 0x22, 0x70 };
#define PID_RAMP_START 1
#define PID_RAMP_END 2
static const u8 pidff_set_ramp[] = { 0x22, 0x75, 0x76 };
#define PID_RAM_POOL_AVAILABLE 1
static const u8 pidff_block_load[] = { 0x22, 0xac };
#define PID_LOOP_COUNT 1
static const u8 pidff_effect_operation[] = { 0x22, 0x7c };
static const u8 pidff_block_free[] = { 0x22 };
#define PID_DEVICE_GAIN_FIELD 0
static const u8 pidff_device_gain[] = { 0x7e };
#define PID_RAM_POOL_SIZE 0
#define PID_SIMULTANEOUS_MAX 1
#define PID_DEVICE_MANAGED_POOL 2
static const u8 pidff_pool[] = { 0x80, 0x83, 0xa9 };
/* Special field key tables used to put special field keys into arrays */
#define PID_ENABLE_ACTUATORS 0
#define PID_RESET 1
static const u8 pidff_device_control[] = { 0x97, 0x9a };
#define PID_CONSTANT 0
#define PID_RAMP 1
#define PID_SQUARE 2
#define PID_SINE 3
#define PID_TRIANGLE 4
#define PID_SAW_UP 5
#define PID_SAW_DOWN 6
#define PID_SPRING 7
#define PID_DAMPER 8
#define PID_INERTIA 9
#define PID_FRICTION 10
static const u8 pidff_effect_types[] = {
0x26, 0x27, 0x30, 0x31, 0x32, 0x33, 0x34,
0x40, 0x41, 0x42, 0x43
};
#define PID_BLOCK_LOAD_SUCCESS 0
#define PID_BLOCK_LOAD_FULL 1
static const u8 pidff_block_load_status[] = { 0x8c, 0x8d };
#define PID_EFFECT_START 0
#define PID_EFFECT_STOP 1
static const u8 pidff_effect_operation_status[] = { 0x79, 0x7b };
struct pidff_usage {
struct hid_field *field;
s32 *value;
};
struct pidff_device {
struct hid_device *hid;
struct hid_report *reports[sizeof(pidff_reports)];
struct pidff_usage set_effect[sizeof(pidff_set_effect)];
struct pidff_usage set_envelope[sizeof(pidff_set_envelope)];
struct pidff_usage set_condition[sizeof(pidff_set_condition)];
struct pidff_usage set_periodic[sizeof(pidff_set_periodic)];
struct pidff_usage set_constant[sizeof(pidff_set_constant)];
struct pidff_usage set_ramp[sizeof(pidff_set_ramp)];
struct pidff_usage device_gain[sizeof(pidff_device_gain)];
struct pidff_usage block_load[sizeof(pidff_block_load)];
struct pidff_usage pool[sizeof(pidff_pool)];
struct pidff_usage effect_operation[sizeof(pidff_effect_operation)];
struct pidff_usage block_free[sizeof(pidff_block_free)];
/* Special field is a field that is not composed of
usage<->value pairs that pidff_usage values are */
/* Special field in create_new_effect */
struct hid_field *create_new_effect_type;
/* Special fields in set_effect */
struct hid_field *set_effect_type;
struct hid_field *effect_direction;
/* Special field in device_control */
struct hid_field *device_control;
/* Special field in block_load */
struct hid_field *block_load_status;
/* Special field in effect_operation */
struct hid_field *effect_operation_status;
int control_id[sizeof(pidff_device_control)];
int type_id[sizeof(pidff_effect_types)];
int status_id[sizeof(pidff_block_load_status)];
int operation_id[sizeof(pidff_effect_operation_status)];
int pid_id[PID_EFFECTS_MAX];
};
/*
* Scale an unsigned value with range 0..max for the given field
*/
static int pidff_rescale(int i, int max, struct hid_field *field)
{
return i * (field->logical_maximum - field->logical_minimum) / max +
field->logical_minimum;
}
/*
* Scale a signed value in range -0x8000..0x7fff for the given field
*/
static int pidff_rescale_signed(int i, struct hid_field *field)
{
return i == 0 ? 0 : i >
0 ? i * field->logical_maximum / 0x7fff : i *
field->logical_minimum / -0x8000;
}
static void pidff_set(struct pidff_usage *usage, u16 value)
{
usage->value[0] = pidff_rescale(value, 0xffff, usage->field);
pr_debug("calculated from %d to %d\n", value, usage->value[0]);
}
static void pidff_set_signed(struct pidff_usage *usage, s16 value)
{
if (usage->field->logical_minimum < 0)
usage->value[0] = pidff_rescale_signed(value, usage->field);
else {
if (value < 0)
usage->value[0] =
pidff_rescale(-value, 0x8000, usage->field);
else
usage->value[0] =
pidff_rescale(value, 0x7fff, usage->field);
}
pr_debug("calculated from %d to %d\n", value, usage->value[0]);
}
/*
* Send envelope report to the device
*/
static void pidff_set_envelope_report(struct pidff_device *pidff,
struct ff_envelope *envelope)
{
pidff->set_envelope[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff->set_envelope[PID_ATTACK_LEVEL].value[0] =
pidff_rescale(envelope->attack_level >
0x7fff ? 0x7fff : envelope->attack_level, 0x7fff,
pidff->set_envelope[PID_ATTACK_LEVEL].field);
pidff->set_envelope[PID_FADE_LEVEL].value[0] =
pidff_rescale(envelope->fade_level >
0x7fff ? 0x7fff : envelope->fade_level, 0x7fff,
pidff->set_envelope[PID_FADE_LEVEL].field);
pidff->set_envelope[PID_ATTACK_TIME].value[0] = envelope->attack_length;
pidff->set_envelope[PID_FADE_TIME].value[0] = envelope->fade_length;
hid_dbg(pidff->hid, "attack %u => %d\n",
envelope->attack_level,
pidff->set_envelope[PID_ATTACK_LEVEL].value[0]);
hid_hw_request(pidff->hid, pidff->reports[PID_SET_ENVELOPE],
HID_REQ_SET_REPORT);
}
/*
* Test if the new envelope differs from old one
*/
static int pidff_needs_set_envelope(struct ff_envelope *envelope,
struct ff_envelope *old)
{
return envelope->attack_level != old->attack_level ||
envelope->fade_level != old->fade_level ||
envelope->attack_length != old->attack_length ||
envelope->fade_length != old->fade_length;
}
/*
* Send constant force report to the device
*/
static void pidff_set_constant_force_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_constant[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_constant[PID_MAGNITUDE],
effect->u.constant.level);
hid_hw_request(pidff->hid, pidff->reports[PID_SET_CONSTANT],
HID_REQ_SET_REPORT);
}
/*
* Test if the constant parameters have changed between effects
*/
static int pidff_needs_set_constant(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->u.constant.level != old->u.constant.level;
}
/*
* Send set effect report to the device
*/
static void pidff_set_effect_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff->set_effect_type->value[0] =
pidff->create_new_effect_type->value[0];
pidff->set_effect[PID_DURATION].value[0] = effect->replay.length;
pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = effect->trigger.button;
pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] =
effect->trigger.interval;
pidff->set_effect[PID_GAIN].value[0] =
pidff->set_effect[PID_GAIN].field->logical_maximum;
pidff->set_effect[PID_DIRECTION_ENABLE].value[0] = 1;
pidff->effect_direction->value[0] =
pidff_rescale(effect->direction, 0xffff,
pidff->effect_direction);
pidff->set_effect[PID_START_DELAY].value[0] = effect->replay.delay;
hid_hw_request(pidff->hid, pidff->reports[PID_SET_EFFECT],
HID_REQ_SET_REPORT);
}
/*
* Test if the values used in set_effect have changed
*/
static int pidff_needs_set_effect(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->replay.length != old->replay.length ||
effect->trigger.interval != old->trigger.interval ||
effect->trigger.button != old->trigger.button ||
effect->direction != old->direction ||
effect->replay.delay != old->replay.delay;
}
/*
* Send periodic effect report to the device
*/
static void pidff_set_periodic_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_periodic[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_periodic[PID_MAGNITUDE],
effect->u.periodic.magnitude);
pidff_set_signed(&pidff->set_periodic[PID_OFFSET],
effect->u.periodic.offset);
pidff_set(&pidff->set_periodic[PID_PHASE], effect->u.periodic.phase);
pidff->set_periodic[PID_PERIOD].value[0] = effect->u.periodic.period;
hid_hw_request(pidff->hid, pidff->reports[PID_SET_PERIODIC],
HID_REQ_SET_REPORT);
}
/*
* Test if periodic effect parameters have changed
*/
static int pidff_needs_set_periodic(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->u.periodic.magnitude != old->u.periodic.magnitude ||
effect->u.periodic.offset != old->u.periodic.offset ||
effect->u.periodic.phase != old->u.periodic.phase ||
effect->u.periodic.period != old->u.periodic.period;
}
/*
* Send condition effect reports to the device
*/
static void pidff_set_condition_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
int i;
pidff->set_condition[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
for (i = 0; i < 2; i++) {
pidff->set_condition[PID_PARAM_BLOCK_OFFSET].value[0] = i;
pidff_set_signed(&pidff->set_condition[PID_CP_OFFSET],
effect->u.condition[i].center);
pidff_set_signed(&pidff->set_condition[PID_POS_COEFFICIENT],
effect->u.condition[i].right_coeff);
pidff_set_signed(&pidff->set_condition[PID_NEG_COEFFICIENT],
effect->u.condition[i].left_coeff);
pidff_set(&pidff->set_condition[PID_POS_SATURATION],
effect->u.condition[i].right_saturation);
pidff_set(&pidff->set_condition[PID_NEG_SATURATION],
effect->u.condition[i].left_saturation);
pidff_set(&pidff->set_condition[PID_DEAD_BAND],
effect->u.condition[i].deadband);
hid_hw_request(pidff->hid, pidff->reports[PID_SET_CONDITION],
HID_REQ_SET_REPORT);
}
}
/*
* Test if condition effect parameters have changed
*/
static int pidff_needs_set_condition(struct ff_effect *effect,
struct ff_effect *old)
{
int i;
int ret = 0;
for (i = 0; i < 2; i++) {
struct ff_condition_effect *cond = &effect->u.condition[i];
struct ff_condition_effect *old_cond = &old->u.condition[i];
ret |= cond->center != old_cond->center ||
cond->right_coeff != old_cond->right_coeff ||
cond->left_coeff != old_cond->left_coeff ||
cond->right_saturation != old_cond->right_saturation ||
cond->left_saturation != old_cond->left_saturation ||
cond->deadband != old_cond->deadband;
}
return ret;
}
/*
* Send ramp force report to the device
*/
static void pidff_set_ramp_force_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_ramp[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_ramp[PID_RAMP_START],
effect->u.ramp.start_level);
pidff_set_signed(&pidff->set_ramp[PID_RAMP_END],
effect->u.ramp.end_level);
hid_hw_request(pidff->hid, pidff->reports[PID_SET_RAMP],
HID_REQ_SET_REPORT);
}
/*
* Test if ramp force parameters have changed
*/
static int pidff_needs_set_ramp(struct ff_effect *effect, struct ff_effect *old)
{
return effect->u.ramp.start_level != old->u.ramp.start_level ||
effect->u.ramp.end_level != old->u.ramp.end_level;
}
/*
* Send a request for effect upload to the device
*
* Returns 0 if device reported success, -ENOSPC if the device reported memory
* is full. Upon unknown response the function will retry for 60 times, if
* still unsuccessful -EIO is returned.
*/
static int pidff_request_effect_upload(struct pidff_device *pidff, int efnum)
{
int j;
pidff->create_new_effect_type->value[0] = efnum;
hid_hw_request(pidff->hid, pidff->reports[PID_CREATE_NEW_EFFECT],
HID_REQ_SET_REPORT);
hid_dbg(pidff->hid, "create_new_effect sent, type: %d\n", efnum);
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] = 0;
pidff->block_load_status->value[0] = 0;
hid_hw_wait(pidff->hid);
for (j = 0; j < 60; j++) {
hid_dbg(pidff->hid, "pid_block_load requested\n");
hid_hw_request(pidff->hid, pidff->reports[PID_BLOCK_LOAD],
HID_REQ_GET_REPORT);
hid_hw_wait(pidff->hid);
if (pidff->block_load_status->value[0] ==
pidff->status_id[PID_BLOCK_LOAD_SUCCESS]) {
hid_dbg(pidff->hid, "device reported free memory: %d bytes\n",
pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
return 0;
}
if (pidff->block_load_status->value[0] ==
pidff->status_id[PID_BLOCK_LOAD_FULL]) {
hid_dbg(pidff->hid, "not enough memory free: %d bytes\n",
pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
return -ENOSPC;
}
}
hid_err(pidff->hid, "pid_block_load failed 60 times\n");
return -EIO;
}
/*
* Play the effect with PID id n times
*/
static void pidff_playback_pid(struct pidff_device *pidff, int pid_id, int n)
{
pidff->effect_operation[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
if (n == 0) {
pidff->effect_operation_status->value[0] =
pidff->operation_id[PID_EFFECT_STOP];
} else {
pidff->effect_operation_status->value[0] =
pidff->operation_id[PID_EFFECT_START];
pidff->effect_operation[PID_LOOP_COUNT].value[0] = n;
}
hid_hw_request(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],
HID_REQ_SET_REPORT);
}
/*
* Play the effect with effect id @effect_id for @value times
*/
static int pidff_playback(struct input_dev *dev, int effect_id, int value)
{
struct pidff_device *pidff = dev->ff->private;
pidff_playback_pid(pidff, pidff->pid_id[effect_id], value);
return 0;
}
/*
* Erase effect with PID id
*/
static void pidff_erase_pid(struct pidff_device *pidff, int pid_id)
{
pidff->block_free[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
hid_hw_request(pidff->hid, pidff->reports[PID_BLOCK_FREE],
HID_REQ_SET_REPORT);
}
/*
* Stop and erase effect with effect_id
*/
static int pidff_erase_effect(struct input_dev *dev, int effect_id)
{
struct pidff_device *pidff = dev->ff->private;
int pid_id = pidff->pid_id[effect_id];
hid_dbg(pidff->hid, "starting to erase %d/%d\n",
effect_id, pidff->pid_id[effect_id]);
/* Wait for the queue to clear. We do not want a full fifo to
prevent the effect removal. */
hid_hw_wait(pidff->hid);
pidff_playback_pid(pidff, pid_id, 0);
pidff_erase_pid(pidff, pid_id);
return 0;
}
/*
* Effect upload handler
*/
static int pidff_upload_effect(struct input_dev *dev, struct ff_effect *effect,
struct ff_effect *old)
{
struct pidff_device *pidff = dev->ff->private;
int type_id;
int error;
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] = 0;
if (old) {
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->pid_id[effect->id];
}
switch (effect->type) {
case FF_CONSTANT:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_CONSTANT]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_constant(effect, old))
pidff_set_constant_force_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.constant.envelope,
&old->u.constant.envelope))
pidff_set_envelope_report(pidff,
&effect->u.constant.envelope);
break;
case FF_PERIODIC:
if (!old) {
switch (effect->u.periodic.waveform) {
case FF_SQUARE:
type_id = PID_SQUARE;
break;
case FF_TRIANGLE:
type_id = PID_TRIANGLE;
break;
case FF_SINE:
type_id = PID_SINE;
break;
case FF_SAW_UP:
type_id = PID_SAW_UP;
break;
case FF_SAW_DOWN:
type_id = PID_SAW_DOWN;
break;
default:
hid_err(pidff->hid, "invalid waveform\n");
return -EINVAL;
}
error = pidff_request_effect_upload(pidff,
pidff->type_id[type_id]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_periodic(effect, old))
pidff_set_periodic_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.periodic.envelope,
&old->u.periodic.envelope))
pidff_set_envelope_report(pidff,
&effect->u.periodic.envelope);
break;
case FF_RAMP:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_RAMP]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_ramp(effect, old))
pidff_set_ramp_force_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.ramp.envelope,
&old->u.ramp.envelope))
pidff_set_envelope_report(pidff,
&effect->u.ramp.envelope);
break;
case FF_SPRING:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_SPRING]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_FRICTION:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_FRICTION]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_DAMPER:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_DAMPER]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_INERTIA:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_INERTIA]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
default:
hid_err(pidff->hid, "invalid type\n");
return -EINVAL;
}
if (!old)
pidff->pid_id[effect->id] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
hid_dbg(pidff->hid, "uploaded\n");
return 0;
}
/*
* set_gain() handler
*/
static void pidff_set_gain(struct input_dev *dev, u16 gain)
{
struct pidff_device *pidff = dev->ff->private;
pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], gain);
hid_hw_request(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
HID_REQ_SET_REPORT);
}
static void pidff_autocenter(struct pidff_device *pidff, u16 magnitude)
{
struct hid_field *field =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field;
if (!magnitude) {
pidff_playback_pid(pidff, field->logical_minimum, 0);
return;
}
pidff_playback_pid(pidff, field->logical_minimum, 1);
pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum;
pidff->set_effect_type->value[0] = pidff->type_id[PID_SPRING];
pidff->set_effect[PID_DURATION].value[0] = 0;
pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = 0;
pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] = 0;
pidff_set(&pidff->set_effect[PID_GAIN], magnitude);
pidff->set_effect[PID_DIRECTION_ENABLE].value[0] = 1;
pidff->set_effect[PID_START_DELAY].value[0] = 0;
hid_hw_request(pidff->hid, pidff->reports[PID_SET_EFFECT],
HID_REQ_SET_REPORT);
}
/*
* pidff_set_autocenter() handler
*/
static void pidff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct pidff_device *pidff = dev->ff->private;
pidff_autocenter(pidff, magnitude);
}
/*
* Find fields from a report and fill a pidff_usage
*/
static int pidff_find_fields(struct pidff_usage *usage, const u8 *table,
struct hid_report *report, int count, int strict)
{
int i, j, k, found;
for (k = 0; k < count; k++) {
found = 0;
for (i = 0; i < report->maxfield; i++) {
if (report->field[i]->maxusage !=
report->field[i]->report_count) {
pr_debug("maxusage and report_count do not match, skipping\n");
continue;
}
for (j = 0; j < report->field[i]->maxusage; j++) {
if (report->field[i]->usage[j].hid ==
(HID_UP_PID | table[k])) {
pr_debug("found %d at %d->%d\n",
k, i, j);
usage[k].field = report->field[i];
usage[k].value =
&report->field[i]->value[j];
found = 1;
break;
}
}
if (found)
break;
}
if (!found && strict) {
pr_debug("failed to locate %d\n", k);
return -1;
}
}
return 0;
}
/*
* Return index into pidff_reports for the given usage
*/
static int pidff_check_usage(int usage)
{
int i;
for (i = 0; i < sizeof(pidff_reports); i++)
if (usage == (HID_UP_PID | pidff_reports[i]))
return i;
return -1;
}
/*
* Find the reports and fill pidff->reports[]
* report_type specifies either OUTPUT or FEATURE reports
*/
static void pidff_find_reports(struct hid_device *hid, int report_type,
struct pidff_device *pidff)
{
struct hid_report *report;
int i, ret;
list_for_each_entry(report,
&hid->report_enum[report_type].report_list, list) {
if (report->maxfield < 1)
continue;
ret = pidff_check_usage(report->field[0]->logical);
if (ret != -1) {
hid_dbg(hid, "found usage 0x%02x from field->logical\n",
pidff_reports[ret]);
pidff->reports[ret] = report;
continue;
}
/*
* Sometimes logical collections are stacked to indicate
* different usages for the report and the field, in which
* case we want the usage of the parent. However, Linux HID
* implementation hides this fact, so we have to dig it up
* ourselves
*/
i = report->field[0]->usage[0].collection_index;
if (i <= 0 ||
hid->collection[i - 1].type != HID_COLLECTION_LOGICAL)
continue;
ret = pidff_check_usage(hid->collection[i - 1].usage);
if (ret != -1 && !pidff->reports[ret]) {
hid_dbg(hid,
"found usage 0x%02x from collection array\n",
pidff_reports[ret]);
pidff->reports[ret] = report;
}
}
}
/*
* Test if the required reports have been found
*/
static int pidff_reports_ok(struct pidff_device *pidff)
{
int i;
for (i = 0; i <= PID_REQUIRED_REPORTS; i++) {
if (!pidff->reports[i]) {
hid_dbg(pidff->hid, "%d missing\n", i);
return 0;
}
}
return 1;
}
/*
* Find a field with a specific usage within a report
*/
static struct hid_field *pidff_find_special_field(struct hid_report *report,
int usage, int enforce_min)
{
int i;
for (i = 0; i < report->maxfield; i++) {
if (report->field[i]->logical == (HID_UP_PID | usage) &&
report->field[i]->report_count > 0) {
if (!enforce_min ||
report->field[i]->logical_minimum == 1)
return report->field[i];
else {
pr_err("logical_minimum is not 1 as it should be\n");
return NULL;
}
}
}
return NULL;
}
/*
* Fill a pidff->*_id struct table
*/
static int pidff_find_special_keys(int *keys, struct hid_field *fld,
const u8 *usagetable, int count)
{
int i, j;
int found = 0;
for (i = 0; i < count; i++) {
for (j = 0; j < fld->maxusage; j++) {
if (fld->usage[j].hid == (HID_UP_PID | usagetable[i])) {
keys[i] = j + 1;
found++;
break;
}
}
}
return found;
}
#define PIDFF_FIND_SPECIAL_KEYS(keys, field, name) \
pidff_find_special_keys(pidff->keys, pidff->field, pidff_ ## name, \
sizeof(pidff_ ## name))
/*
* Find and check the special fields
*/
static int pidff_find_special_fields(struct pidff_device *pidff)
{
hid_dbg(pidff->hid, "finding special fields\n");
pidff->create_new_effect_type =
pidff_find_special_field(pidff->reports[PID_CREATE_NEW_EFFECT],
0x25, 1);
pidff->set_effect_type =
pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
0x25, 1);
pidff->effect_direction =
pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
0x57, 0);
pidff->device_control =
pidff_find_special_field(pidff->reports[PID_DEVICE_CONTROL],
0x96, 1);
pidff->block_load_status =
pidff_find_special_field(pidff->reports[PID_BLOCK_LOAD],
0x8b, 1);
pidff->effect_operation_status =
pidff_find_special_field(pidff->reports[PID_EFFECT_OPERATION],
0x78, 1);
hid_dbg(pidff->hid, "search done\n");
if (!pidff->create_new_effect_type || !pidff->set_effect_type) {
hid_err(pidff->hid, "effect lists not found\n");
return -1;
}
if (!pidff->effect_direction) {
hid_err(pidff->hid, "direction field not found\n");
return -1;
}
if (!pidff->device_control) {
hid_err(pidff->hid, "device control field not found\n");
return -1;
}
if (!pidff->block_load_status) {
hid_err(pidff->hid, "block load status field not found\n");
return -1;
}
if (!pidff->effect_operation_status) {
hid_err(pidff->hid, "effect operation field not found\n");
return -1;
}
pidff_find_special_keys(pidff->control_id, pidff->device_control,
pidff_device_control,
sizeof(pidff_device_control));
PIDFF_FIND_SPECIAL_KEYS(control_id, device_control, device_control);
if (!PIDFF_FIND_SPECIAL_KEYS(type_id, create_new_effect_type,
effect_types)) {
hid_err(pidff->hid, "no effect types found\n");
return -1;
}
if (PIDFF_FIND_SPECIAL_KEYS(status_id, block_load_status,
block_load_status) !=
sizeof(pidff_block_load_status)) {
hid_err(pidff->hid,
"block load status identifiers not found\n");
return -1;
}
if (PIDFF_FIND_SPECIAL_KEYS(operation_id, effect_operation_status,
effect_operation_status) !=
sizeof(pidff_effect_operation_status)) {
hid_err(pidff->hid, "effect operation identifiers not found\n");
return -1;
}
return 0;
}
/*
* Find the implemented effect types
*/
static int pidff_find_effects(struct pidff_device *pidff,
struct input_dev *dev)
{
int i;
for (i = 0; i < sizeof(pidff_effect_types); i++) {
int pidff_type = pidff->type_id[i];
if (pidff->set_effect_type->usage[pidff_type].hid !=
pidff->create_new_effect_type->usage[pidff_type].hid) {
hid_err(pidff->hid,
"effect type number %d is invalid\n", i);
return -1;
}
}
if (pidff->type_id[PID_CONSTANT])
set_bit(FF_CONSTANT, dev->ffbit);
if (pidff->type_id[PID_RAMP])
set_bit(FF_RAMP, dev->ffbit);
if (pidff->type_id[PID_SQUARE]) {
set_bit(FF_SQUARE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SINE]) {
set_bit(FF_SINE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_TRIANGLE]) {
set_bit(FF_TRIANGLE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SAW_UP]) {
set_bit(FF_SAW_UP, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SAW_DOWN]) {
set_bit(FF_SAW_DOWN, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SPRING])
set_bit(FF_SPRING, dev->ffbit);
if (pidff->type_id[PID_DAMPER])
set_bit(FF_DAMPER, dev->ffbit);
if (pidff->type_id[PID_INERTIA])
set_bit(FF_INERTIA, dev->ffbit);
if (pidff->type_id[PID_FRICTION])
set_bit(FF_FRICTION, dev->ffbit);
return 0;
}
#define PIDFF_FIND_FIELDS(name, report, strict) \
pidff_find_fields(pidff->name, pidff_ ## name, \
pidff->reports[report], \
sizeof(pidff_ ## name), strict)
/*
* Fill and check the pidff_usages
*/
static int pidff_init_fields(struct pidff_device *pidff, struct input_dev *dev)
{
int envelope_ok = 0;
if (PIDFF_FIND_FIELDS(set_effect, PID_SET_EFFECT, 1)) {
hid_err(pidff->hid, "unknown set_effect report layout\n");
return -ENODEV;
}
PIDFF_FIND_FIELDS(block_load, PID_BLOCK_LOAD, 0);
if (!pidff->block_load[PID_EFFECT_BLOCK_INDEX].value) {
hid_err(pidff->hid, "unknown pid_block_load report layout\n");
return -ENODEV;
}
if (PIDFF_FIND_FIELDS(effect_operation, PID_EFFECT_OPERATION, 1)) {
hid_err(pidff->hid, "unknown effect_operation report layout\n");
return -ENODEV;
}
if (PIDFF_FIND_FIELDS(block_free, PID_BLOCK_FREE, 1)) {
hid_err(pidff->hid, "unknown pid_block_free report layout\n");
return -ENODEV;
}
if (!PIDFF_FIND_FIELDS(set_envelope, PID_SET_ENVELOPE, 1))
envelope_ok = 1;
if (pidff_find_special_fields(pidff) || pidff_find_effects(pidff, dev))
return -ENODEV;
if (!envelope_ok) {
if (test_and_clear_bit(FF_CONSTANT, dev->ffbit))
hid_warn(pidff->hid,
"has constant effect but no envelope\n");
if (test_and_clear_bit(FF_RAMP, dev->ffbit))
hid_warn(pidff->hid,
"has ramp effect but no envelope\n");
if (test_and_clear_bit(FF_PERIODIC, dev->ffbit))
hid_warn(pidff->hid,
"has periodic effect but no envelope\n");
}
if (test_bit(FF_CONSTANT, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_constant, PID_SET_CONSTANT, 1)) {
hid_warn(pidff->hid, "unknown constant effect layout\n");
clear_bit(FF_CONSTANT, dev->ffbit);
}
if (test_bit(FF_RAMP, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_ramp, PID_SET_RAMP, 1)) {
hid_warn(pidff->hid, "unknown ramp effect layout\n");
clear_bit(FF_RAMP, dev->ffbit);
}
if ((test_bit(FF_SPRING, dev->ffbit) ||
test_bit(FF_DAMPER, dev->ffbit) ||
test_bit(FF_FRICTION, dev->ffbit) ||
test_bit(FF_INERTIA, dev->ffbit)) &&
PIDFF_FIND_FIELDS(set_condition, PID_SET_CONDITION, 1)) {
hid_warn(pidff->hid, "unknown condition effect layout\n");
clear_bit(FF_SPRING, dev->ffbit);
clear_bit(FF_DAMPER, dev->ffbit);
clear_bit(FF_FRICTION, dev->ffbit);
clear_bit(FF_INERTIA, dev->ffbit);
}
if (test_bit(FF_PERIODIC, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_periodic, PID_SET_PERIODIC, 1)) {
hid_warn(pidff->hid, "unknown periodic effect layout\n");
clear_bit(FF_PERIODIC, dev->ffbit);
}
PIDFF_FIND_FIELDS(pool, PID_POOL, 0);
if (!PIDFF_FIND_FIELDS(device_gain, PID_DEVICE_GAIN, 1))
set_bit(FF_GAIN, dev->ffbit);
return 0;
}
/*
* Reset the device
*/
static void pidff_reset(struct pidff_device *pidff)
{
struct hid_device *hid = pidff->hid;
int i = 0;
pidff->device_control->value[0] = pidff->control_id[PID_RESET];
/* We reset twice as sometimes hid_wait_io isn't waiting long enough */
hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
hid_hw_wait(hid);
hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
hid_hw_wait(hid);
pidff->device_control->value[0] =
pidff->control_id[PID_ENABLE_ACTUATORS];
hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
hid_hw_wait(hid);
/* pool report is sometimes messed up, refetch it */
hid_hw_request(hid, pidff->reports[PID_POOL], HID_REQ_GET_REPORT);
hid_hw_wait(hid);
if (pidff->pool[PID_SIMULTANEOUS_MAX].value) {
while (pidff->pool[PID_SIMULTANEOUS_MAX].value[0] < 2) {
if (i++ > 20) {
hid_warn(pidff->hid,
"device reports %d simultaneous effects\n",
pidff->pool[PID_SIMULTANEOUS_MAX].value[0]);
break;
}
hid_dbg(pidff->hid, "pid_pool requested again\n");
hid_hw_request(hid, pidff->reports[PID_POOL],
HID_REQ_GET_REPORT);
hid_hw_wait(hid);
}
}
}
/*
* Test if autocenter modification is using the supported method
*/
static int pidff_check_autocenter(struct pidff_device *pidff,
struct input_dev *dev)
{
int error;
/*
* Let's find out if autocenter modification is supported
* Specification doesn't specify anything, so we request an
* effect upload and cancel it immediately. If the approved
* effect id was one above the minimum, then we assume the first
* effect id is a built-in spring type effect used for autocenter
*/
error = pidff_request_effect_upload(pidff, 1);
if (error) {
hid_err(pidff->hid, "upload request failed\n");
return error;
}
if (pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] ==
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum + 1) {
pidff_autocenter(pidff, 0xffff);
set_bit(FF_AUTOCENTER, dev->ffbit);
} else {
hid_notice(pidff->hid,
"device has unknown autocenter control method\n");
}
pidff_erase_pid(pidff,
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0]);
return 0;
}
/*
* Check if the device is PID and initialize it
*/
int hid_pidff_init(struct hid_device *hid)
{
struct pidff_device *pidff;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
struct input_dev *dev = hidinput->input;
struct ff_device *ff;
int max_effects;
int error;
hid_dbg(hid, "starting pid init\n");
if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
hid_dbg(hid, "not a PID device, no output report\n");
return -ENODEV;
}
pidff = kzalloc(sizeof(*pidff), GFP_KERNEL);
if (!pidff)
return -ENOMEM;
pidff->hid = hid;
hid_device_io_start(hid);
pidff_find_reports(hid, HID_OUTPUT_REPORT, pidff);
pidff_find_reports(hid, HID_FEATURE_REPORT, pidff);
if (!pidff_reports_ok(pidff)) {
hid_dbg(hid, "reports not ok, aborting\n");
error = -ENODEV;
goto fail;
}
error = pidff_init_fields(pidff, dev);
if (error)
goto fail;
pidff_reset(pidff);
if (test_bit(FF_GAIN, dev->ffbit)) {
pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], 0xffff);
hid_hw_request(hid, pidff->reports[PID_DEVICE_GAIN],
HID_REQ_SET_REPORT);
}
error = pidff_check_autocenter(pidff, dev);
if (error)
goto fail;
max_effects =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_maximum -
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum +
1;
hid_dbg(hid, "max effects is %d\n", max_effects);
if (max_effects > PID_EFFECTS_MAX)
max_effects = PID_EFFECTS_MAX;
if (pidff->pool[PID_SIMULTANEOUS_MAX].value)
hid_dbg(hid, "max simultaneous effects is %d\n",
pidff->pool[PID_SIMULTANEOUS_MAX].value[0]);
if (pidff->pool[PID_RAM_POOL_SIZE].value)
hid_dbg(hid, "device memory size is %d bytes\n",
pidff->pool[PID_RAM_POOL_SIZE].value[0]);
if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
error = -EPERM;
hid_notice(hid,
"device does not support device managed pool\n");
goto fail;
}
error = input_ff_create(dev, max_effects);
if (error)
goto fail;
ff = dev->ff;
ff->private = pidff;
ff->upload = pidff_upload_effect;
ff->erase = pidff_erase_effect;
ff->set_gain = pidff_set_gain;
ff->set_autocenter = pidff_set_autocenter;
ff->playback = pidff_playback;
hid_info(dev, "Force feedback for USB HID PID devices by Anssi Hannula <[email protected]>\n");
hid_device_io_stop(hid);
return 0;
fail:
hid_device_io_stop(hid);
kfree(pidff);
return error;
}
| linux-master | drivers/hid/usbhid/hid-pidff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 1999-2001 Vojtech Pavlik
*
* USB HIDBP Mouse support
*/
/*
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <[email protected]>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb/input.h>
#include <linux/hid.h>
/* for apple IDs */
#ifdef CONFIG_USB_HID_MODULE
#include "../hid-ids.h"
#endif
/*
* Version Information
*/
#define DRIVER_VERSION "v1.6"
#define DRIVER_AUTHOR "Vojtech Pavlik <[email protected]>"
#define DRIVER_DESC "USB HID Boot Protocol mouse driver"
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
struct usb_mouse {
char name[128];
char phys[64];
struct usb_device *usbdev;
struct input_dev *dev;
struct urb *irq;
signed char *data;
dma_addr_t data_dma;
};
static void usb_mouse_irq(struct urb *urb)
{
struct usb_mouse *mouse = urb->context;
signed char *data = mouse->data;
struct input_dev *dev = mouse->dev;
int status;
switch (urb->status) {
case 0: /* success */
break;
case -ECONNRESET: /* unlink */
case -ENOENT:
case -ESHUTDOWN:
return;
/* -EPIPE: should clear the halt */
default: /* error */
goto resubmit;
}
input_report_key(dev, BTN_LEFT, data[0] & 0x01);
input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
input_report_key(dev, BTN_MIDDLE, data[0] & 0x04);
input_report_key(dev, BTN_SIDE, data[0] & 0x08);
input_report_key(dev, BTN_EXTRA, data[0] & 0x10);
input_report_rel(dev, REL_X, data[1]);
input_report_rel(dev, REL_Y, data[2]);
input_report_rel(dev, REL_WHEEL, data[3]);
input_sync(dev);
resubmit:
status = usb_submit_urb (urb, GFP_ATOMIC);
if (status)
dev_err(&mouse->usbdev->dev,
"can't resubmit intr, %s-%s/input0, status %d\n",
mouse->usbdev->bus->bus_name,
mouse->usbdev->devpath, status);
}
static int usb_mouse_open(struct input_dev *dev)
{
struct usb_mouse *mouse = input_get_drvdata(dev);
mouse->irq->dev = mouse->usbdev;
if (usb_submit_urb(mouse->irq, GFP_KERNEL))
return -EIO;
return 0;
}
static void usb_mouse_close(struct input_dev *dev)
{
struct usb_mouse *mouse = input_get_drvdata(dev);
usb_kill_urb(mouse->irq);
}
static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_mouse *mouse;
struct input_dev *input_dev;
int pipe, maxp;
int error = -ENOMEM;
interface = intf->cur_altsetting;
if (interface->desc.bNumEndpoints != 1)
return -ENODEV;
endpoint = &interface->endpoint[0].desc;
if (!usb_endpoint_is_int_in(endpoint))
return -ENODEV;
pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
maxp = usb_maxpacket(dev, pipe);
mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL);
input_dev = input_allocate_device();
if (!mouse || !input_dev)
goto fail1;
mouse->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &mouse->data_dma);
if (!mouse->data)
goto fail1;
mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!mouse->irq)
goto fail2;
mouse->usbdev = dev;
mouse->dev = input_dev;
if (dev->manufacturer)
strscpy(mouse->name, dev->manufacturer, sizeof(mouse->name));
if (dev->product) {
if (dev->manufacturer)
strlcat(mouse->name, " ", sizeof(mouse->name));
strlcat(mouse->name, dev->product, sizeof(mouse->name));
}
if (!strlen(mouse->name))
snprintf(mouse->name, sizeof(mouse->name),
"USB HIDBP Mouse %04x:%04x",
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
usb_make_path(dev, mouse->phys, sizeof(mouse->phys));
strlcat(mouse->phys, "/input0", sizeof(mouse->phys));
input_dev->name = mouse->name;
input_dev->phys = mouse->phys;
usb_to_input_id(dev, &input_dev->id);
input_dev->dev.parent = &intf->dev;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) |
BIT_MASK(BTN_EXTRA);
input_dev->relbit[0] |= BIT_MASK(REL_WHEEL);
input_set_drvdata(input_dev, mouse);
input_dev->open = usb_mouse_open;
input_dev->close = usb_mouse_close;
usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
(maxp > 8 ? 8 : maxp),
usb_mouse_irq, mouse, endpoint->bInterval);
mouse->irq->transfer_dma = mouse->data_dma;
mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
error = input_register_device(mouse->dev);
if (error)
goto fail3;
usb_set_intfdata(intf, mouse);
return 0;
fail3:
usb_free_urb(mouse->irq);
fail2:
usb_free_coherent(dev, 8, mouse->data, mouse->data_dma);
fail1:
input_free_device(input_dev);
kfree(mouse);
return error;
}
static void usb_mouse_disconnect(struct usb_interface *intf)
{
struct usb_mouse *mouse = usb_get_intfdata (intf);
usb_set_intfdata(intf, NULL);
if (mouse) {
usb_kill_urb(mouse->irq);
input_unregister_device(mouse->dev);
usb_free_urb(mouse->irq);
usb_free_coherent(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
kfree(mouse);
}
}
static const struct usb_device_id usb_mouse_id_table[] = {
{ USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
USB_INTERFACE_PROTOCOL_MOUSE) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
static struct usb_driver usb_mouse_driver = {
.name = "usbmouse",
.probe = usb_mouse_probe,
.disconnect = usb_mouse_disconnect,
.id_table = usb_mouse_id_table,
};
module_usb_driver(usb_mouse_driver);
| linux-master | drivers/hid/usbhid/usbmouse.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2001 Paul Stewart
* Copyright (c) 2001 Vojtech Pavlik
*
* HID char devices, giving access to raw HID device events.
*/
/*
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to Paul Stewart <[email protected]>
*/
#include <linux/poll.h>
#include <linux/slab.h>
#include <linux/sched/signal.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/compat.h>
#include <linux/vmalloc.h>
#include <linux/nospec.h>
#include "usbhid.h"
#ifdef CONFIG_USB_DYNAMIC_MINORS
#define HIDDEV_MINOR_BASE 0
#define HIDDEV_MINORS 256
#else
#define HIDDEV_MINOR_BASE 96
#define HIDDEV_MINORS 16
#endif
#define HIDDEV_BUFFER_SIZE 2048
struct hiddev_list {
struct hiddev_usage_ref buffer[HIDDEV_BUFFER_SIZE];
int head;
int tail;
unsigned flags;
struct fasync_struct *fasync;
struct hiddev *hiddev;
struct list_head node;
struct mutex thread_lock;
};
/*
* Find a report, given the report's type and ID. The ID can be specified
* indirectly by REPORT_ID_FIRST (which returns the first report of the given
* type) or by (REPORT_ID_NEXT | old_id), which returns the next report of the
* given type which follows old_id.
*/
static struct hid_report *
hiddev_lookup_report(struct hid_device *hid, struct hiddev_report_info *rinfo)
{
unsigned int flags = rinfo->report_id & ~HID_REPORT_ID_MASK;
unsigned int rid = rinfo->report_id & HID_REPORT_ID_MASK;
struct hid_report_enum *report_enum;
struct hid_report *report;
struct list_head *list;
if (rinfo->report_type < HID_REPORT_TYPE_MIN ||
rinfo->report_type > HID_REPORT_TYPE_MAX)
return NULL;
report_enum = hid->report_enum +
(rinfo->report_type - HID_REPORT_TYPE_MIN);
switch (flags) {
case 0: /* Nothing to do -- report_id is already set correctly */
break;
case HID_REPORT_ID_FIRST:
if (list_empty(&report_enum->report_list))
return NULL;
list = report_enum->report_list.next;
report = list_entry(list, struct hid_report, list);
rinfo->report_id = report->id;
break;
case HID_REPORT_ID_NEXT:
report = report_enum->report_id_hash[rid];
if (!report)
return NULL;
list = report->list.next;
if (list == &report_enum->report_list)
return NULL;
report = list_entry(list, struct hid_report, list);
rinfo->report_id = report->id;
break;
default:
return NULL;
}
return report_enum->report_id_hash[rinfo->report_id];
}
/*
* Perform an exhaustive search of the report table for a usage, given its
* type and usage id.
*/
static struct hid_field *
hiddev_lookup_usage(struct hid_device *hid, struct hiddev_usage_ref *uref)
{
int i, j;
struct hid_report *report;
struct hid_report_enum *report_enum;
struct hid_field *field;
if (uref->report_type < HID_REPORT_TYPE_MIN ||
uref->report_type > HID_REPORT_TYPE_MAX)
return NULL;
report_enum = hid->report_enum +
(uref->report_type - HID_REPORT_TYPE_MIN);
list_for_each_entry(report, &report_enum->report_list, list) {
for (i = 0; i < report->maxfield; i++) {
field = report->field[i];
for (j = 0; j < field->maxusage; j++) {
if (field->usage[j].hid == uref->usage_code) {
uref->report_id = report->id;
uref->field_index = i;
uref->usage_index = j;
return field;
}
}
}
}
return NULL;
}
static void hiddev_send_event(struct hid_device *hid,
struct hiddev_usage_ref *uref)
{
struct hiddev *hiddev = hid->hiddev;
struct hiddev_list *list;
unsigned long flags;
spin_lock_irqsave(&hiddev->list_lock, flags);
list_for_each_entry(list, &hiddev->list, node) {
if (uref->field_index != HID_FIELD_INDEX_NONE ||
(list->flags & HIDDEV_FLAG_REPORT) != 0) {
list->buffer[list->head] = *uref;
list->head = (list->head + 1) &
(HIDDEV_BUFFER_SIZE - 1);
kill_fasync(&list->fasync, SIGIO, POLL_IN);
}
}
spin_unlock_irqrestore(&hiddev->list_lock, flags);
wake_up_interruptible(&hiddev->wait);
}
/*
* This is where hid.c calls into hiddev to pass an event that occurred over
* the interrupt pipe
*/
void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
unsigned type = field->report_type;
struct hiddev_usage_ref uref;
uref.report_type =
(type == HID_INPUT_REPORT) ? HID_REPORT_TYPE_INPUT :
((type == HID_OUTPUT_REPORT) ? HID_REPORT_TYPE_OUTPUT :
((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE : 0));
uref.report_id = field->report->id;
uref.field_index = field->index;
uref.usage_index = (usage - field->usage);
uref.usage_code = usage->hid;
uref.value = value;
hiddev_send_event(hid, &uref);
}
EXPORT_SYMBOL_GPL(hiddev_hid_event);
void hiddev_report_event(struct hid_device *hid, struct hid_report *report)
{
unsigned type = report->type;
struct hiddev_usage_ref uref;
memset(&uref, 0, sizeof(uref));
uref.report_type =
(type == HID_INPUT_REPORT) ? HID_REPORT_TYPE_INPUT :
((type == HID_OUTPUT_REPORT) ? HID_REPORT_TYPE_OUTPUT :
((type == HID_FEATURE_REPORT) ? HID_REPORT_TYPE_FEATURE : 0));
uref.report_id = report->id;
uref.field_index = HID_FIELD_INDEX_NONE;
hiddev_send_event(hid, &uref);
}
/*
* fasync file op
*/
static int hiddev_fasync(int fd, struct file *file, int on)
{
struct hiddev_list *list = file->private_data;
return fasync_helper(fd, file, on, &list->fasync);
}
/*
* release file op
*/
static int hiddev_release(struct inode * inode, struct file * file)
{
struct hiddev_list *list = file->private_data;
unsigned long flags;
spin_lock_irqsave(&list->hiddev->list_lock, flags);
list_del(&list->node);
spin_unlock_irqrestore(&list->hiddev->list_lock, flags);
mutex_lock(&list->hiddev->existancelock);
if (!--list->hiddev->open) {
if (list->hiddev->exist) {
hid_hw_close(list->hiddev->hid);
hid_hw_power(list->hiddev->hid, PM_HINT_NORMAL);
} else {
mutex_unlock(&list->hiddev->existancelock);
kfree(list->hiddev);
vfree(list);
return 0;
}
}
mutex_unlock(&list->hiddev->existancelock);
vfree(list);
return 0;
}
static int __hiddev_open(struct hiddev *hiddev, struct file *file)
{
struct hiddev_list *list;
int error;
lockdep_assert_held(&hiddev->existancelock);
list = vzalloc(sizeof(*list));
if (!list)
return -ENOMEM;
mutex_init(&list->thread_lock);
list->hiddev = hiddev;
if (!hiddev->open++) {
error = hid_hw_power(hiddev->hid, PM_HINT_FULLON);
if (error < 0)
goto err_drop_count;
error = hid_hw_open(hiddev->hid);
if (error < 0)
goto err_normal_power;
}
spin_lock_irq(&hiddev->list_lock);
list_add_tail(&list->node, &hiddev->list);
spin_unlock_irq(&hiddev->list_lock);
file->private_data = list;
return 0;
err_normal_power:
hid_hw_power(hiddev->hid, PM_HINT_NORMAL);
err_drop_count:
hiddev->open--;
vfree(list);
return error;
}
/*
* open file op
*/
static int hiddev_open(struct inode *inode, struct file *file)
{
struct usb_interface *intf;
struct hid_device *hid;
struct hiddev *hiddev;
int res;
intf = usbhid_find_interface(iminor(inode));
if (!intf)
return -ENODEV;
hid = usb_get_intfdata(intf);
hiddev = hid->hiddev;
mutex_lock(&hiddev->existancelock);
res = hiddev->exist ? __hiddev_open(hiddev, file) : -ENODEV;
mutex_unlock(&hiddev->existancelock);
return res;
}
/*
* "write" file op
*/
static ssize_t hiddev_write(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
{
return -EINVAL;
}
/*
* "read" file op
*/
static ssize_t hiddev_read(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
{
DEFINE_WAIT(wait);
struct hiddev_list *list = file->private_data;
int event_size;
int retval;
event_size = ((list->flags & HIDDEV_FLAG_UREF) != 0) ?
sizeof(struct hiddev_usage_ref) : sizeof(struct hiddev_event);
if (count < event_size)
return 0;
/* lock against other threads */
retval = mutex_lock_interruptible(&list->thread_lock);
if (retval)
return -ERESTARTSYS;
while (retval == 0) {
if (list->head == list->tail) {
prepare_to_wait(&list->hiddev->wait, &wait, TASK_INTERRUPTIBLE);
while (list->head == list->tail) {
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
}
if (!list->hiddev->exist) {
retval = -EIO;
break;
}
if (file->f_flags & O_NONBLOCK) {
retval = -EAGAIN;
break;
}
/* let O_NONBLOCK tasks run */
mutex_unlock(&list->thread_lock);
schedule();
if (mutex_lock_interruptible(&list->thread_lock)) {
finish_wait(&list->hiddev->wait, &wait);
return -EINTR;
}
set_current_state(TASK_INTERRUPTIBLE);
}
finish_wait(&list->hiddev->wait, &wait);
}
if (retval) {
mutex_unlock(&list->thread_lock);
return retval;
}
while (list->head != list->tail &&
retval + event_size <= count) {
if ((list->flags & HIDDEV_FLAG_UREF) == 0) {
if (list->buffer[list->tail].field_index != HID_FIELD_INDEX_NONE) {
struct hiddev_event event;
event.hid = list->buffer[list->tail].usage_code;
event.value = list->buffer[list->tail].value;
if (copy_to_user(buffer + retval, &event, sizeof(struct hiddev_event))) {
mutex_unlock(&list->thread_lock);
return -EFAULT;
}
retval += sizeof(struct hiddev_event);
}
} else {
if (list->buffer[list->tail].field_index != HID_FIELD_INDEX_NONE ||
(list->flags & HIDDEV_FLAG_REPORT) != 0) {
if (copy_to_user(buffer + retval, list->buffer + list->tail, sizeof(struct hiddev_usage_ref))) {
mutex_unlock(&list->thread_lock);
return -EFAULT;
}
retval += sizeof(struct hiddev_usage_ref);
}
}
list->tail = (list->tail + 1) & (HIDDEV_BUFFER_SIZE - 1);
}
}
mutex_unlock(&list->thread_lock);
return retval;
}
/*
* "poll" file op
* No kernel lock - fine
*/
static __poll_t hiddev_poll(struct file *file, poll_table *wait)
{
struct hiddev_list *list = file->private_data;
poll_wait(file, &list->hiddev->wait, wait);
if (list->head != list->tail)
return EPOLLIN | EPOLLRDNORM | EPOLLOUT;
if (!list->hiddev->exist)
return EPOLLERR | EPOLLHUP;
return 0;
}
/*
* "ioctl" file op
*/
static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
{
struct hid_device *hid = hiddev->hid;
struct hiddev_report_info rinfo;
struct hiddev_usage_ref_multi *uref_multi = NULL;
struct hiddev_usage_ref *uref;
struct hid_report *report;
struct hid_field *field;
int i;
uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL);
if (!uref_multi)
return -ENOMEM;
uref = &uref_multi->uref;
if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
if (copy_from_user(uref_multi, user_arg,
sizeof(*uref_multi)))
goto fault;
} else {
if (copy_from_user(uref, user_arg, sizeof(*uref)))
goto fault;
}
switch (cmd) {
case HIDIOCGUCODE:
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
goto inval;
uref->field_index = array_index_nospec(uref->field_index,
report->maxfield);
field = report->field[uref->field_index];
if (uref->usage_index >= field->maxusage)
goto inval;
uref->usage_index = array_index_nospec(uref->usage_index,
field->maxusage);
uref->usage_code = field->usage[uref->usage_index].hid;
if (copy_to_user(user_arg, uref, sizeof(*uref)))
goto fault;
goto goodreturn;
default:
if (cmd != HIDIOCGUSAGE &&
cmd != HIDIOCGUSAGES &&
uref->report_type == HID_REPORT_TYPE_INPUT)
goto inval;
if (uref->report_id == HID_REPORT_ID_UNKNOWN) {
field = hiddev_lookup_usage(hid, uref);
if (field == NULL)
goto inval;
} else {
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
goto inval;
uref->field_index = array_index_nospec(uref->field_index,
report->maxfield);
field = report->field[uref->field_index];
if (cmd == HIDIOCGCOLLECTIONINDEX) {
if (uref->usage_index >= field->maxusage)
goto inval;
uref->usage_index =
array_index_nospec(uref->usage_index,
field->maxusage);
} else if (uref->usage_index >= field->report_count)
goto inval;
}
if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
if (uref_multi->num_values > HID_MAX_MULTI_USAGES ||
uref->usage_index + uref_multi->num_values >
field->report_count)
goto inval;
uref->usage_index =
array_index_nospec(uref->usage_index,
field->report_count -
uref_multi->num_values);
}
switch (cmd) {
case HIDIOCGUSAGE:
if (uref->usage_index >= field->report_count)
goto inval;
uref->value = field->value[uref->usage_index];
if (copy_to_user(user_arg, uref, sizeof(*uref)))
goto fault;
goto goodreturn;
case HIDIOCSUSAGE:
if (uref->usage_index >= field->report_count)
goto inval;
field->value[uref->usage_index] = uref->value;
goto goodreturn;
case HIDIOCGCOLLECTIONINDEX:
i = field->usage[uref->usage_index].collection_index;
kfree(uref_multi);
return i;
case HIDIOCGUSAGES:
for (i = 0; i < uref_multi->num_values; i++)
uref_multi->values[i] =
field->value[uref->usage_index + i];
if (copy_to_user(user_arg, uref_multi,
sizeof(*uref_multi)))
goto fault;
goto goodreturn;
case HIDIOCSUSAGES:
for (i = 0; i < uref_multi->num_values; i++)
field->value[uref->usage_index + i] =
uref_multi->values[i];
goto goodreturn;
}
goodreturn:
kfree(uref_multi);
return 0;
fault:
kfree(uref_multi);
return -EFAULT;
inval:
kfree(uref_multi);
return -EINVAL;
}
}
static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
{
struct hid_device *hid = hiddev->hid;
struct usb_device *dev = hid_to_usb_dev(hid);
int idx, len;
char *buf;
if (get_user(idx, (int __user *)user_arg))
return -EFAULT;
if ((buf = kmalloc(HID_STRING_SIZE, GFP_KERNEL)) == NULL)
return -ENOMEM;
if ((len = usb_string(dev, idx, buf, HID_STRING_SIZE-1)) < 0) {
kfree(buf);
return -EINVAL;
}
if (copy_to_user(user_arg+sizeof(int), buf, len+1)) {
kfree(buf);
return -EFAULT;
}
kfree(buf);
return len;
}
static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct hiddev_list *list = file->private_data;
struct hiddev *hiddev = list->hiddev;
struct hid_device *hid;
struct hiddev_collection_info cinfo;
struct hiddev_report_info rinfo;
struct hiddev_field_info finfo;
struct hiddev_devinfo dinfo;
struct hid_report *report;
struct hid_field *field;
void __user *user_arg = (void __user *)arg;
int i, r = -EINVAL;
/* Called without BKL by compat methods so no BKL taken */
mutex_lock(&hiddev->existancelock);
if (!hiddev->exist) {
r = -ENODEV;
goto ret_unlock;
}
hid = hiddev->hid;
switch (cmd) {
case HIDIOCGVERSION:
r = put_user(HID_VERSION, (int __user *)arg) ?
-EFAULT : 0;
break;
case HIDIOCAPPLICATION:
if (arg >= hid->maxapplication)
break;
for (i = 0; i < hid->maxcollection; i++)
if (hid->collection[i].type ==
HID_COLLECTION_APPLICATION && arg-- == 0)
break;
if (i < hid->maxcollection)
r = hid->collection[i].usage;
break;
case HIDIOCGDEVINFO:
{
struct usb_device *dev = hid_to_usb_dev(hid);
struct usbhid_device *usbhid = hid->driver_data;
memset(&dinfo, 0, sizeof(dinfo));
dinfo.bustype = BUS_USB;
dinfo.busnum = dev->bus->busnum;
dinfo.devnum = dev->devnum;
dinfo.ifnum = usbhid->ifnum;
dinfo.vendor = le16_to_cpu(dev->descriptor.idVendor);
dinfo.product = le16_to_cpu(dev->descriptor.idProduct);
dinfo.version = le16_to_cpu(dev->descriptor.bcdDevice);
dinfo.num_applications = hid->maxapplication;
r = copy_to_user(user_arg, &dinfo, sizeof(dinfo)) ?
-EFAULT : 0;
break;
}
case HIDIOCGFLAG:
r = put_user(list->flags, (int __user *)arg) ?
-EFAULT : 0;
break;
case HIDIOCSFLAG:
{
int newflags;
if (get_user(newflags, (int __user *)arg)) {
r = -EFAULT;
break;
}
if ((newflags & ~HIDDEV_FLAGS) != 0 ||
((newflags & HIDDEV_FLAG_REPORT) != 0 &&
(newflags & HIDDEV_FLAG_UREF) == 0))
break;
list->flags = newflags;
r = 0;
break;
}
case HIDIOCGSTRING:
r = hiddev_ioctl_string(hiddev, cmd, user_arg);
break;
case HIDIOCINITREPORT:
usbhid_init_reports(hid);
hiddev->initialized = true;
r = 0;
break;
case HIDIOCGREPORT:
if (copy_from_user(&rinfo, user_arg, sizeof(rinfo))) {
r = -EFAULT;
break;
}
if (rinfo.report_type == HID_REPORT_TYPE_OUTPUT)
break;
report = hiddev_lookup_report(hid, &rinfo);
if (report == NULL)
break;
hid_hw_request(hid, report, HID_REQ_GET_REPORT);
hid_hw_wait(hid);
r = 0;
break;
case HIDIOCSREPORT:
if (copy_from_user(&rinfo, user_arg, sizeof(rinfo))) {
r = -EFAULT;
break;
}
if (rinfo.report_type == HID_REPORT_TYPE_INPUT)
break;
report = hiddev_lookup_report(hid, &rinfo);
if (report == NULL)
break;
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
hid_hw_wait(hid);
r = 0;
break;
case HIDIOCGREPORTINFO:
if (copy_from_user(&rinfo, user_arg, sizeof(rinfo))) {
r = -EFAULT;
break;
}
report = hiddev_lookup_report(hid, &rinfo);
if (report == NULL)
break;
rinfo.num_fields = report->maxfield;
r = copy_to_user(user_arg, &rinfo, sizeof(rinfo)) ?
-EFAULT : 0;
break;
case HIDIOCGFIELDINFO:
if (copy_from_user(&finfo, user_arg, sizeof(finfo))) {
r = -EFAULT;
break;
}
rinfo.report_type = finfo.report_type;
rinfo.report_id = finfo.report_id;
report = hiddev_lookup_report(hid, &rinfo);
if (report == NULL)
break;
if (finfo.field_index >= report->maxfield)
break;
finfo.field_index = array_index_nospec(finfo.field_index,
report->maxfield);
field = report->field[finfo.field_index];
memset(&finfo, 0, sizeof(finfo));
finfo.report_type = rinfo.report_type;
finfo.report_id = rinfo.report_id;
finfo.field_index = field->report_count - 1;
finfo.maxusage = field->maxusage;
finfo.flags = field->flags;
finfo.physical = field->physical;
finfo.logical = field->logical;
finfo.application = field->application;
finfo.logical_minimum = field->logical_minimum;
finfo.logical_maximum = field->logical_maximum;
finfo.physical_minimum = field->physical_minimum;
finfo.physical_maximum = field->physical_maximum;
finfo.unit_exponent = field->unit_exponent;
finfo.unit = field->unit;
r = copy_to_user(user_arg, &finfo, sizeof(finfo)) ?
-EFAULT : 0;
break;
case HIDIOCGUCODE:
case HIDIOCGUSAGE:
case HIDIOCSUSAGE:
case HIDIOCGUSAGES:
case HIDIOCSUSAGES:
case HIDIOCGCOLLECTIONINDEX:
if (!hiddev->initialized) {
usbhid_init_reports(hid);
hiddev->initialized = true;
}
r = hiddev_ioctl_usage(hiddev, cmd, user_arg);
break;
case HIDIOCGCOLLECTIONINFO:
if (copy_from_user(&cinfo, user_arg, sizeof(cinfo))) {
r = -EFAULT;
break;
}
if (cinfo.index >= hid->maxcollection)
break;
cinfo.index = array_index_nospec(cinfo.index,
hid->maxcollection);
cinfo.type = hid->collection[cinfo.index].type;
cinfo.usage = hid->collection[cinfo.index].usage;
cinfo.level = hid->collection[cinfo.index].level;
r = copy_to_user(user_arg, &cinfo, sizeof(cinfo)) ?
-EFAULT : 0;
break;
default:
if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ)
break;
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGNAME(0))) {
int len = strlen(hid->name) + 1;
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
r = copy_to_user(user_arg, hid->name, len) ?
-EFAULT : len;
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGPHYS(0))) {
int len = strlen(hid->phys) + 1;
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
r = copy_to_user(user_arg, hid->phys, len) ?
-EFAULT : len;
break;
}
}
ret_unlock:
mutex_unlock(&hiddev->existancelock);
return r;
}
static const struct file_operations hiddev_fops = {
.owner = THIS_MODULE,
.read = hiddev_read,
.write = hiddev_write,
.poll = hiddev_poll,
.open = hiddev_open,
.release = hiddev_release,
.unlocked_ioctl = hiddev_ioctl,
.fasync = hiddev_fasync,
.compat_ioctl = compat_ptr_ioctl,
.llseek = noop_llseek,
};
static char *hiddev_devnode(const struct device *dev, umode_t *mode)
{
return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
}
static struct usb_class_driver hiddev_class = {
.name = "hiddev%d",
.devnode = hiddev_devnode,
.fops = &hiddev_fops,
.minor_base = HIDDEV_MINOR_BASE,
};
/*
* This is where hid.c calls us to connect a hid device to the hiddev driver
*/
int hiddev_connect(struct hid_device *hid, unsigned int force)
{
struct hiddev *hiddev;
struct usbhid_device *usbhid = hid->driver_data;
int retval;
if (!force) {
unsigned int i;
for (i = 0; i < hid->maxcollection; i++)
if (hid->collection[i].type ==
HID_COLLECTION_APPLICATION &&
!IS_INPUT_APPLICATION(hid->collection[i].usage))
break;
if (i == hid->maxcollection)
return -EINVAL;
}
if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL)))
return -ENOMEM;
init_waitqueue_head(&hiddev->wait);
INIT_LIST_HEAD(&hiddev->list);
spin_lock_init(&hiddev->list_lock);
mutex_init(&hiddev->existancelock);
hid->hiddev = hiddev;
hiddev->hid = hid;
hiddev->exist = 1;
retval = usb_register_dev(usbhid->intf, &hiddev_class);
if (retval) {
hid_err(hid, "Not able to get a minor for this device\n");
hid->hiddev = NULL;
kfree(hiddev);
return retval;
}
/*
* If HID_QUIRK_NO_INIT_REPORTS is set, make sure we don't initialize
* the reports.
*/
hiddev->initialized = hid->quirks & HID_QUIRK_NO_INIT_REPORTS;
hiddev->minor = usbhid->intf->minor;
return 0;
}
/*
* This is where hid.c calls us to disconnect a hiddev device from the
* corresponding hid device (usually because the usb device has disconnected)
*/
static struct usb_class_driver hiddev_class;
void hiddev_disconnect(struct hid_device *hid)
{
struct hiddev *hiddev = hid->hiddev;
struct usbhid_device *usbhid = hid->driver_data;
usb_deregister_dev(usbhid->intf, &hiddev_class);
mutex_lock(&hiddev->existancelock);
hiddev->exist = 0;
if (hiddev->open) {
hid_hw_close(hiddev->hid);
wake_up_interruptible(&hiddev->wait);
mutex_unlock(&hiddev->existancelock);
} else {
mutex_unlock(&hiddev->existancelock);
kfree(hiddev);
}
}
| linux-master | drivers/hid/usbhid/hiddev.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 PCIe communication driver
* Copyright 2020-2021 Advanced Micro Devices, Inc.
*
* Authors: Shyam Sundar S K <[email protected]>
* Sandeep Singh <[email protected]>
* Basavaraj Natikar <[email protected]>
*/
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dmi.h>
#include <linux/interrupt.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "amd_sfh_pcie.h"
#include "sfh1_1/amd_sfh_init.h"
#define DRIVER_NAME "pcie_mp2_amd"
#define DRIVER_DESC "AMD(R) PCIe MP2 Communication Driver"
#define ACEL_EN BIT(0)
#define GYRO_EN BIT(1)
#define MAGNO_EN BIT(2)
#define HPD_EN BIT(16)
#define ALS_EN BIT(19)
#define ACS_EN BIT(22)
static int sensor_mask_override = -1;
module_param_named(sensor_mask, sensor_mask_override, int, 0444);
MODULE_PARM_DESC(sensor_mask, "override the detected sensors mask");
static int amd_sfh_wait_response_v2(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts)
{
union cmd_response cmd_resp;
/* Get response with status within a max of 1600 ms timeout */
if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
(cmd_resp.response_v2.response == sensor_sts &&
cmd_resp.response_v2.status == 0 && (sid == 0xff ||
cmd_resp.response_v2.sensor_id == sid)), 500, 1600000))
return cmd_resp.response_v2.response;
return SENSOR_DISABLED;
}
static void amd_start_sensor_v2(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info)
{
union sfh_cmd_base cmd_base;
cmd_base.ul = 0;
cmd_base.cmd_v2.cmd_id = ENABLE_SENSOR;
cmd_base.cmd_v2.intr_disable = 1;
cmd_base.cmd_v2.period = info.period;
cmd_base.cmd_v2.sensor_id = info.sensor_idx;
cmd_base.cmd_v2.length = 16;
if (info.sensor_idx == als_idx)
cmd_base.cmd_v2.mem_type = USE_C2P_REG;
writeq(info.dma_address, privdata->mmio + AMD_C2P_MSG1);
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
static void amd_stop_sensor_v2(struct amd_mp2_dev *privdata, u16 sensor_idx)
{
union sfh_cmd_base cmd_base;
cmd_base.ul = 0;
cmd_base.cmd_v2.cmd_id = DISABLE_SENSOR;
cmd_base.cmd_v2.intr_disable = 1;
cmd_base.cmd_v2.period = 0;
cmd_base.cmd_v2.sensor_id = sensor_idx;
cmd_base.cmd_v2.length = 16;
writeq(0x0, privdata->mmio + AMD_C2P_MSG1);
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
static void amd_stop_all_sensor_v2(struct amd_mp2_dev *privdata)
{
union sfh_cmd_base cmd_base;
cmd_base.cmd_v2.cmd_id = STOP_ALL_SENSORS;
cmd_base.cmd_v2.intr_disable = 1;
cmd_base.cmd_v2.period = 0;
cmd_base.cmd_v2.sensor_id = 0;
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata)
{
if (readl(privdata->mmio + AMD_P2C_MSG(4))) {
writel(0, privdata->mmio + AMD_P2C_MSG(4));
writel(0xf, privdata->mmio + AMD_P2C_MSG(5));
}
}
void amd_sfh_clear_intr(struct amd_mp2_dev *privdata)
{
if (privdata->mp2_ops->clear_intr)
privdata->mp2_ops->clear_intr(privdata);
}
static irqreturn_t amd_sfh_irq_handler(int irq, void *data)
{
amd_sfh_clear_intr(data);
return IRQ_HANDLED;
}
int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata)
{
int rc;
pci_intx(privdata->pdev, true);
rc = devm_request_irq(&privdata->pdev->dev, privdata->pdev->irq,
amd_sfh_irq_handler, 0, DRIVER_NAME, privdata);
if (rc) {
dev_err(&privdata->pdev->dev, "failed to request irq %d err=%d\n",
privdata->pdev->irq, rc);
return rc;
}
return 0;
}
static int amd_sfh_dis_sts_v2(struct amd_mp2_dev *privdata)
{
return (readl(privdata->mmio + AMD_P2C_MSG(1)) &
SENSOR_DISCOVERY_STATUS_MASK) >> SENSOR_DISCOVERY_STATUS_SHIFT;
}
static void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info)
{
union sfh_cmd_param cmd_param;
union sfh_cmd_base cmd_base;
/* fill up command register */
memset(&cmd_base, 0, sizeof(cmd_base));
cmd_base.s.cmd_id = ENABLE_SENSOR;
cmd_base.s.period = info.period;
cmd_base.s.sensor_id = info.sensor_idx;
/* fill up command param register */
memset(&cmd_param, 0, sizeof(cmd_param));
cmd_param.s.buf_layout = 1;
cmd_param.s.buf_length = 16;
writeq(info.dma_address, privdata->mmio + AMD_C2P_MSG2);
writel(cmd_param.ul, privdata->mmio + AMD_C2P_MSG1);
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
static void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx)
{
union sfh_cmd_base cmd_base;
/* fill up command register */
memset(&cmd_base, 0, sizeof(cmd_base));
cmd_base.s.cmd_id = DISABLE_SENSOR;
cmd_base.s.period = 0;
cmd_base.s.sensor_id = sensor_idx;
writeq(0x0, privdata->mmio + AMD_C2P_MSG2);
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
static void amd_stop_all_sensors(struct amd_mp2_dev *privdata)
{
union sfh_cmd_base cmd_base;
/* fill up command register */
memset(&cmd_base, 0, sizeof(cmd_base));
cmd_base.s.cmd_id = STOP_ALL_SENSORS;
cmd_base.s.period = 0;
cmd_base.s.sensor_id = 0;
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG0);
}
static const struct dmi_system_id dmi_sensor_mask_overrides[] = {
{
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY x360 Convertible 13-ag0xxx"),
},
.driver_data = (void *)(ACEL_EN | MAGNO_EN),
},
{
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY x360 Convertible 15-cp0xxx"),
},
.driver_data = (void *)(ACEL_EN | MAGNO_EN),
},
{ }
};
int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id)
{
int activestatus, num_of_sensors = 0;
const struct dmi_system_id *dmi_id;
if (sensor_mask_override == -1) {
dmi_id = dmi_first_match(dmi_sensor_mask_overrides);
if (dmi_id)
sensor_mask_override = (long)dmi_id->driver_data;
}
if (sensor_mask_override >= 0) {
activestatus = sensor_mask_override;
} else {
activestatus = privdata->mp2_acs >> 4;
}
if (ACEL_EN & activestatus)
sensor_id[num_of_sensors++] = accel_idx;
if (GYRO_EN & activestatus)
sensor_id[num_of_sensors++] = gyro_idx;
if (MAGNO_EN & activestatus)
sensor_id[num_of_sensors++] = mag_idx;
if (ALS_EN & activestatus)
sensor_id[num_of_sensors++] = als_idx;
if (HPD_EN & activestatus)
sensor_id[num_of_sensors++] = HPD_IDX;
if (ACS_EN & activestatus)
sensor_id[num_of_sensors++] = ACS_IDX;
return num_of_sensors;
}
static void amd_mp2_pci_remove(void *privdata)
{
struct amd_mp2_dev *mp2 = privdata;
amd_sfh_hid_client_deinit(privdata);
mp2->mp2_ops->stop_all(mp2);
pci_intx(mp2->pdev, false);
amd_sfh_clear_intr(mp2);
}
static struct amd_mp2_ops amd_sfh_ops_v2 = {
.start = amd_start_sensor_v2,
.stop = amd_stop_sensor_v2,
.stop_all = amd_stop_all_sensor_v2,
.response = amd_sfh_wait_response_v2,
.clear_intr = amd_sfh_clear_intr_v2,
.init_intr = amd_sfh_irq_init_v2,
.discovery_status = amd_sfh_dis_sts_v2,
.remove = amd_mp2_pci_remove,
};
static struct amd_mp2_ops amd_sfh_ops = {
.start = amd_start_sensor,
.stop = amd_stop_sensor,
.stop_all = amd_stop_all_sensors,
.remove = amd_mp2_pci_remove,
};
static void mp2_select_ops(struct amd_mp2_dev *privdata)
{
u8 acs;
privdata->mp2_acs = readl(privdata->mmio + AMD_P2C_MSG3);
acs = privdata->mp2_acs & GENMASK(3, 0);
switch (acs) {
case V2_STATUS:
privdata->mp2_ops = &amd_sfh_ops_v2;
break;
default:
privdata->mp2_ops = &amd_sfh_ops;
break;
}
}
int amd_sfh_irq_init(struct amd_mp2_dev *privdata)
{
if (privdata->mp2_ops->init_intr)
return privdata->mp2_ops->init_intr(privdata);
return 0;
}
static const struct dmi_system_id dmi_nodevs[] = {
{
/*
* Google Chromebooks use Chrome OS Embedded Controller Sensor
* Hub instead of Sensor Hub Fusion and leaves MP2
* uninitialized, which disables all functionalities, even
* including the registers necessary for feature detections.
*/
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Google"),
},
},
{ }
};
static int amd_mp2_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct amd_mp2_dev *privdata;
int rc;
if (dmi_first_match(dmi_nodevs))
return -ENODEV;
privdata = devm_kzalloc(&pdev->dev, sizeof(*privdata), GFP_KERNEL);
if (!privdata)
return -ENOMEM;
privdata->pdev = pdev;
dev_set_drvdata(&pdev->dev, privdata);
rc = pcim_enable_device(pdev);
if (rc)
return rc;
rc = pcim_iomap_regions(pdev, BIT(2), DRIVER_NAME);
if (rc)
return rc;
privdata->mmio = pcim_iomap_table(pdev)[2];
pci_set_master(pdev);
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc) {
dev_err(&pdev->dev, "failed to set DMA mask\n");
return rc;
}
privdata->cl_data = devm_kzalloc(&pdev->dev, sizeof(struct amdtp_cl_data), GFP_KERNEL);
if (!privdata->cl_data)
return -ENOMEM;
privdata->sfh1_1_ops = (const struct amd_sfh1_1_ops *)id->driver_data;
if (privdata->sfh1_1_ops) {
rc = privdata->sfh1_1_ops->init(privdata);
if (rc)
return rc;
goto init_done;
}
mp2_select_ops(privdata);
rc = amd_sfh_irq_init(privdata);
if (rc) {
dev_err(&pdev->dev, "amd_sfh_irq_init failed\n");
return rc;
}
rc = amd_sfh_hid_client_init(privdata);
if (rc) {
amd_sfh_clear_intr(privdata);
if (rc != -EOPNOTSUPP)
dev_err(&pdev->dev, "amd_sfh_hid_client_init failed\n");
return rc;
}
init_done:
amd_sfh_clear_intr(privdata);
return devm_add_action_or_reset(&pdev->dev, privdata->mp2_ops->remove, privdata);
}
static void amd_sfh_shutdown(struct pci_dev *pdev)
{
struct amd_mp2_dev *mp2 = pci_get_drvdata(pdev);
if (mp2 && mp2->mp2_ops)
mp2->mp2_ops->stop_all(mp2);
}
static int __maybe_unused amd_mp2_pci_resume(struct device *dev)
{
struct amd_mp2_dev *mp2 = dev_get_drvdata(dev);
mp2->mp2_ops->resume(mp2);
return 0;
}
static int __maybe_unused amd_mp2_pci_suspend(struct device *dev)
{
struct amd_mp2_dev *mp2 = dev_get_drvdata(dev);
mp2->mp2_ops->suspend(mp2);
return 0;
}
static SIMPLE_DEV_PM_OPS(amd_mp2_pm_ops, amd_mp2_pci_suspend,
amd_mp2_pci_resume);
static const struct pci_device_id amd_mp2_pci_tbl[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MP2) },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MP2_1_1),
.driver_data = (kernel_ulong_t)&sfh1_1_ops },
{ }
};
MODULE_DEVICE_TABLE(pci, amd_mp2_pci_tbl);
static struct pci_driver amd_mp2_pci_driver = {
.name = DRIVER_NAME,
.id_table = amd_mp2_pci_tbl,
.probe = amd_mp2_pci_probe,
.driver.pm = &amd_mp2_pm_ops,
.shutdown = amd_sfh_shutdown,
};
module_pci_driver(amd_mp2_pci_driver);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Shyam Sundar S K <[email protected]>");
MODULE_AUTHOR("Sandeep Singh <[email protected]>");
MODULE_AUTHOR("Basavaraj Natikar <[email protected]>");
| linux-master | drivers/hid/amd-sfh-hid/amd_sfh_pcie.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD SFH Client Layer
* Copyright 2020-2021 Advanced Micro Devices, Inc.
* Authors: Nehal Bakulchandra Shah <[email protected]>
* Sandeep Singh <[email protected]>
* Basavaraj Natikar <[email protected]>
*/
#include <linux/dma-mapping.h>
#include <linux/hid.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/errno.h>
#include "hid_descriptor/amd_sfh_hid_desc.h"
#include "amd_sfh_pcie.h"
#include "amd_sfh_hid.h"
void amd_sfh_set_report(struct hid_device *hid, int report_id,
int report_type)
{
struct amdtp_hid_data *hid_data = hid->driver_data;
struct amdtp_cl_data *cli_data = hid_data->cli_data;
int i;
for (i = 0; i < cli_data->num_hid_devices; i++) {
if (cli_data->hid_sensor_hubs[i] == hid) {
cli_data->cur_hid_dev = i;
break;
}
}
amdtp_hid_wakeup(hid);
}
int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type)
{
struct amdtp_hid_data *hid_data = hid->driver_data;
struct amdtp_cl_data *cli_data = hid_data->cli_data;
struct request_list *req_list = &cli_data->req_list;
int i;
for (i = 0; i < cli_data->num_hid_devices; i++) {
if (cli_data->hid_sensor_hubs[i] == hid) {
struct request_list *new = kzalloc(sizeof(*new), GFP_KERNEL);
if (!new)
return -ENOMEM;
new->current_index = i;
new->sensor_idx = cli_data->sensor_idx[i];
new->hid = hid;
new->report_type = report_type;
new->report_id = report_id;
cli_data->report_id[i] = report_id;
cli_data->request_done[i] = false;
list_add(&new->list, &req_list->list);
break;
}
}
schedule_delayed_work(&cli_data->work, 0);
return 0;
}
void amd_sfh_work(struct work_struct *work)
{
struct amdtp_cl_data *cli_data = container_of(work, struct amdtp_cl_data, work.work);
struct request_list *req_list = &cli_data->req_list;
struct amd_input_data *in_data = cli_data->in_data;
struct request_list *req_node;
u8 current_index, sensor_index;
struct amd_mp2_ops *mp2_ops;
struct amd_mp2_dev *mp2;
u8 report_id, node_type;
u8 report_size = 0;
req_node = list_last_entry(&req_list->list, struct request_list, list);
list_del(&req_node->list);
current_index = req_node->current_index;
sensor_index = req_node->sensor_idx;
report_id = req_node->report_id;
node_type = req_node->report_type;
kfree(req_node);
mp2 = container_of(in_data, struct amd_mp2_dev, in_data);
mp2_ops = mp2->mp2_ops;
if (node_type == HID_FEATURE_REPORT) {
report_size = mp2_ops->get_feat_rep(sensor_index, report_id,
cli_data->feature_report[current_index]);
if (report_size)
hid_input_report(cli_data->hid_sensor_hubs[current_index],
cli_data->report_type[current_index],
cli_data->feature_report[current_index], report_size, 0);
else
pr_err("AMDSFH: Invalid report size\n");
} else if (node_type == HID_INPUT_REPORT) {
report_size = mp2_ops->get_in_rep(current_index, sensor_index, report_id, in_data);
if (report_size)
hid_input_report(cli_data->hid_sensor_hubs[current_index],
cli_data->report_type[current_index],
in_data->input_report[current_index], report_size, 0);
else
pr_err("AMDSFH: Invalid report size\n");
}
cli_data->cur_hid_dev = current_index;
cli_data->sensor_requested_cnt[current_index] = 0;
amdtp_hid_wakeup(cli_data->hid_sensor_hubs[current_index]);
}
void amd_sfh_work_buffer(struct work_struct *work)
{
struct amdtp_cl_data *cli_data = container_of(work, struct amdtp_cl_data, work_buffer.work);
struct amd_input_data *in_data = cli_data->in_data;
struct amd_mp2_dev *mp2;
u8 report_size;
int i;
for (i = 0; i < cli_data->num_hid_devices; i++) {
if (cli_data->sensor_sts[i] == SENSOR_ENABLED) {
mp2 = container_of(in_data, struct amd_mp2_dev, in_data);
report_size = mp2->mp2_ops->get_in_rep(i, cli_data->sensor_idx[i],
cli_data->report_id[i], in_data);
hid_input_report(cli_data->hid_sensor_hubs[i], HID_INPUT_REPORT,
in_data->input_report[i], report_size, 0);
}
}
schedule_delayed_work(&cli_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
}
static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts)
{
if (mp2->mp2_ops->response)
sensor_sts = mp2->mp2_ops->response(mp2, sid, sensor_sts);
return sensor_sts;
}
static const char *get_sensor_name(int idx)
{
switch (idx) {
case accel_idx:
return "accelerometer";
case gyro_idx:
return "gyroscope";
case mag_idx:
return "magnetometer";
case als_idx:
case ACS_IDX: /* ambient color sensor */
return "ALS";
case HPD_IDX:
return "HPD";
default:
return "unknown sensor type";
}
}
static void amd_sfh_resume(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
struct amd_mp2_sensor_info info;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
info.period = AMD_SFH_IDLE_LOOP;
info.sensor_idx = cl_data->sensor_idx[i];
info.dma_address = cl_data->sensor_dma_addr[i];
mp2->mp2_ops->start(mp2, info);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], SENSOR_ENABLED);
if (status == SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_ENABLED;
dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
amd_sfh_clear_intr(mp2);
}
static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_idx[i] != HPD_IDX &&
cl_data->sensor_sts[i] == SENSOR_ENABLED) {
mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], SENSOR_DISABLED);
if (status != SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work_buffer);
amd_sfh_clear_intr(mp2);
}
int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata)
{
struct amd_input_data *in_data = &privdata->in_data;
struct amdtp_cl_data *cl_data = privdata->cl_data;
struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
struct amd_mp2_sensor_info info;
struct request_list *req_list;
struct device *dev;
u32 feature_report_size;
u32 input_report_size;
int rc, i;
u8 cl_idx;
req_list = &cl_data->req_list;
dev = &privdata->pdev->dev;
amd_sfh_set_desc_ops(mp2_ops);
mp2_ops->suspend = amd_sfh_suspend;
mp2_ops->resume = amd_sfh_resume;
cl_data->num_hid_devices = amd_mp2_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
if (cl_data->num_hid_devices == 0)
return -ENODEV;
cl_data->is_any_sensor_enabled = false;
INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
INIT_LIST_HEAD(&req_list->list);
cl_data->in_data = in_data;
for (i = 0; i < cl_data->num_hid_devices; i++) {
in_data->sensor_virt_addr[i] = dma_alloc_coherent(dev, sizeof(int) * 8,
&cl_data->sensor_dma_addr[i],
GFP_KERNEL);
if (!in_data->sensor_virt_addr[i]) {
rc = -ENOMEM;
goto cleanup;
}
cl_data->sensor_sts[i] = SENSOR_DISABLED;
cl_data->sensor_requested_cnt[i] = 0;
cl_data->cur_hid_dev = i;
cl_idx = cl_data->sensor_idx[i];
cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
if (!cl_data->report_descr_sz[i]) {
rc = -EINVAL;
goto cleanup;
}
feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
if (!feature_report_size) {
rc = -EINVAL;
goto cleanup;
}
input_report_size = mp2_ops->get_desc_sz(cl_idx, input_size);
if (!input_report_size) {
rc = -EINVAL;
goto cleanup;
}
cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
if (!cl_data->feature_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
if (!in_data->input_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
info.period = AMD_SFH_IDLE_LOOP;
info.sensor_idx = cl_idx;
info.dma_address = cl_data->sensor_dma_addr[i];
cl_data->report_descr[i] =
devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
if (!cl_data->report_descr[i]) {
rc = -ENOMEM;
goto cleanup;
}
rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
if (rc)
goto cleanup;
mp2_ops->start(privdata, info);
cl_data->sensor_sts[i] = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], SENSOR_ENABLED);
}
for (i = 0; i < cl_data->num_hid_devices; i++) {
cl_data->cur_hid_dev = i;
if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
cl_data->is_any_sensor_enabled = true;
rc = amdtp_hid_probe(i, cl_data);
if (rc)
goto cleanup;
} else {
cl_data->sensor_sts[i] = SENSOR_DISABLED;
}
dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
if (!cl_data->is_any_sensor_enabled ||
(mp2_ops->discovery_status && mp2_ops->discovery_status(privdata) == 0)) {
dev_warn(dev, "Failed to discover, sensors not enabled is %d\n", cl_data->is_any_sensor_enabled);
rc = -EOPNOTSUPP;
goto cleanup;
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
return 0;
cleanup:
amd_sfh_hid_client_deinit(privdata);
for (i = 0; i < cl_data->num_hid_devices; i++) {
devm_kfree(dev, cl_data->feature_report[i]);
devm_kfree(dev, in_data->input_report[i]);
devm_kfree(dev, cl_data->report_descr[i]);
}
return rc;
}
int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
{
struct amdtp_cl_data *cl_data = privdata->cl_data;
struct amd_input_data *in_data = cl_data->in_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], SENSOR_DISABLED);
if (status != SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work);
cancel_delayed_work_sync(&cl_data->work_buffer);
amdtp_hid_remove(cl_data);
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (in_data->sensor_virt_addr[i]) {
dma_free_coherent(&privdata->pdev->dev, 8 * sizeof(int),
in_data->sensor_virt_addr[i],
cl_data->sensor_dma_addr[i]);
}
}
return 0;
}
| linux-master | drivers/hid/amd-sfh-hid/amd_sfh_client.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 Sensors transport driver
*
* Copyright 2020-2021 Advanced Micro Devices, Inc.
* Authors: Nehal Bakulchandra Shah <[email protected]>
* Sandeep Singh <[email protected]>
* Basavaraj Natikar <[email protected]>
*/
#include <linux/hid.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include "amd_sfh_hid.h"
#include "amd_sfh_pcie.h"
#define AMD_SFH_RESPONSE_TIMEOUT 1500
/**
* amdtp_hid_parse() - hid-core .parse() callback
* @hid: hid device instance
*
* This function gets called during call to hid_add_device
*
* Return: 0 on success and non zero on error
*/
static int amdtp_hid_parse(struct hid_device *hid)
{
struct amdtp_hid_data *hid_data = hid->driver_data;
struct amdtp_cl_data *cli_data = hid_data->cli_data;
return hid_parse_report(hid, cli_data->report_descr[hid_data->index],
cli_data->report_descr_sz[hid_data->index]);
}
/* Empty callbacks with success return code */
static int amdtp_hid_start(struct hid_device *hid)
{
return 0;
}
static void amdtp_hid_stop(struct hid_device *hid)
{
}
static int amdtp_hid_open(struct hid_device *hid)
{
return 0;
}
static void amdtp_hid_close(struct hid_device *hid)
{
}
static int amdtp_raw_request(struct hid_device *hdev, u8 reportnum,
u8 *buf, size_t len, u8 rtype, int reqtype)
{
return 0;
}
static void amdtp_hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype)
{
int rc;
switch (reqtype) {
case HID_REQ_GET_REPORT:
rc = amd_sfh_get_report(hid, rep->id, rep->type);
if (rc)
dev_err(&hid->dev, "AMDSFH get report error\n");
break;
case HID_REQ_SET_REPORT:
amd_sfh_set_report(hid, rep->id, reqtype);
break;
default:
break;
}
}
static int amdtp_wait_for_response(struct hid_device *hid)
{
struct amdtp_hid_data *hid_data = hid->driver_data;
struct amdtp_cl_data *cli_data = hid_data->cli_data;
int i, ret = 0;
for (i = 0; i < cli_data->num_hid_devices; i++) {
if (cli_data->hid_sensor_hubs[i] == hid)
break;
}
if (!cli_data->request_done[i])
ret = wait_event_interruptible_timeout(hid_data->hid_wait,
cli_data->request_done[i],
msecs_to_jiffies(AMD_SFH_RESPONSE_TIMEOUT));
if (ret == -ERESTARTSYS)
return -ERESTARTSYS;
else if (ret < 0)
return -ETIMEDOUT;
else
return 0;
}
void amdtp_hid_wakeup(struct hid_device *hid)
{
struct amdtp_hid_data *hid_data;
struct amdtp_cl_data *cli_data;
if (hid) {
hid_data = hid->driver_data;
cli_data = hid_data->cli_data;
cli_data->request_done[cli_data->cur_hid_dev] = true;
wake_up_interruptible(&hid_data->hid_wait);
}
}
static const struct hid_ll_driver amdtp_hid_ll_driver = {
.parse = amdtp_hid_parse,
.start = amdtp_hid_start,
.stop = amdtp_hid_stop,
.open = amdtp_hid_open,
.close = amdtp_hid_close,
.request = amdtp_hid_request,
.wait = amdtp_wait_for_response,
.raw_request = amdtp_raw_request,
};
int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data)
{
struct amd_mp2_dev *mp2 = container_of(cli_data->in_data, struct amd_mp2_dev, in_data);
struct device *dev = &mp2->pdev->dev;
struct hid_device *hid;
struct amdtp_hid_data *hid_data;
int rc;
hid = hid_allocate_device();
if (IS_ERR(hid))
return PTR_ERR(hid);
hid_data = kzalloc(sizeof(*hid_data), GFP_KERNEL);
if (!hid_data) {
rc = -ENOMEM;
goto err_hid_data;
}
hid->ll_driver = &amdtp_hid_ll_driver;
hid_data->index = cur_hid_dev;
hid_data->cli_data = cli_data;
init_waitqueue_head(&hid_data->hid_wait);
hid->driver_data = hid_data;
cli_data->hid_sensor_hubs[cur_hid_dev] = hid;
strscpy(hid->phys, dev->driver ? dev->driver->name : dev_name(dev),
sizeof(hid->phys));
hid->bus = BUS_AMD_SFH;
hid->vendor = AMD_SFH_HID_VENDOR;
hid->product = AMD_SFH_HID_PRODUCT;
snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X", "hid-amdsfh",
hid->vendor, hid->product);
rc = hid_add_device(hid);
if (rc)
goto err_hid_device;
return 0;
err_hid_device:
kfree(hid_data);
err_hid_data:
hid_destroy_device(hid);
return rc;
}
void amdtp_hid_remove(struct amdtp_cl_data *cli_data)
{
int i;
for (i = 0; i < cli_data->num_hid_devices; ++i) {
if (cli_data->hid_sensor_hubs[i]) {
kfree(cli_data->hid_sensor_hubs[i]->driver_data);
hid_destroy_device(cli_data->hid_sensor_hubs[i]);
cli_data->hid_sensor_hubs[i] = NULL;
}
}
}
| linux-master | drivers/hid/amd-sfh-hid/amd_sfh_hid.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD SFH Report Descriptor generator
* Copyright 2020-2021 Advanced Micro Devices, Inc.
* Authors: Nehal Bakulchandra Shah <[email protected]>
* Sandeep Singh <[email protected]>
* Basavaraj Natikar <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
#include "amd_sfh_pcie.h"
#include "amd_sfh_hid_desc.h"
#include "amd_sfh_hid_report_desc.h"
#include "amd_sfh_hid.h"
#define AMD_SFH_FW_MULTIPLIER (1000)
#define HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM 0x41
#define HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM 0x51
#define HID_DEFAULT_REPORT_INTERVAL 0x50
#define HID_DEFAULT_MIN_VALUE 0X7F
#define HID_DEFAULT_MAX_VALUE 0x80
#define HID_DEFAULT_SENSITIVITY 0x7F
#define HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM 0x01
/* state enums */
#define HID_USAGE_SENSOR_STATE_READY_ENUM 0x02
#define HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM 0x05
#define HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM 0x04
#define ILLUMINANCE_MASK GENMASK(14, 0)
static int get_report_descriptor(int sensor_idx, u8 *rep_desc)
{
switch (sensor_idx) {
case accel_idx: /* accel */
memset(rep_desc, 0, sizeof(accel3_report_descriptor));
memcpy(rep_desc, accel3_report_descriptor,
sizeof(accel3_report_descriptor));
break;
case gyro_idx: /* gyro */
memset(rep_desc, 0, sizeof(gyro3_report_descriptor));
memcpy(rep_desc, gyro3_report_descriptor,
sizeof(gyro3_report_descriptor));
break;
case mag_idx: /* Magnetometer */
memset(rep_desc, 0, sizeof(comp3_report_descriptor));
memcpy(rep_desc, comp3_report_descriptor,
sizeof(comp3_report_descriptor));
break;
case als_idx: /* ambient light sensor */
case ACS_IDX: /* ambient color sensor */
memset(rep_desc, 0, sizeof(als_report_descriptor));
memcpy(rep_desc, als_report_descriptor,
sizeof(als_report_descriptor));
break;
case HPD_IDX: /* HPD sensor */
memset(rep_desc, 0, sizeof(hpd_report_descriptor));
memcpy(rep_desc, hpd_report_descriptor,
sizeof(hpd_report_descriptor));
break;
default:
break;
}
return 0;
}
static u32 get_descr_sz(int sensor_idx, int descriptor_name)
{
switch (sensor_idx) {
case accel_idx:
switch (descriptor_name) {
case descr_size:
return sizeof(accel3_report_descriptor);
case input_size:
return sizeof(struct accel3_input_report);
case feature_size:
return sizeof(struct accel3_feature_report);
}
break;
case gyro_idx:
switch (descriptor_name) {
case descr_size:
return sizeof(gyro3_report_descriptor);
case input_size:
return sizeof(struct gyro_input_report);
case feature_size:
return sizeof(struct gyro_feature_report);
}
break;
case mag_idx:
switch (descriptor_name) {
case descr_size:
return sizeof(comp3_report_descriptor);
case input_size:
return sizeof(struct magno_input_report);
case feature_size:
return sizeof(struct magno_feature_report);
}
break;
case als_idx:
case ACS_IDX: /* ambient color sensor */
switch (descriptor_name) {
case descr_size:
return sizeof(als_report_descriptor);
case input_size:
return sizeof(struct als_input_report);
case feature_size:
return sizeof(struct als_feature_report);
}
break;
case HPD_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(hpd_report_descriptor);
case input_size:
return sizeof(struct hpd_input_report);
case feature_size:
return sizeof(struct hpd_feature_report);
}
break;
default:
break;
}
return 0;
}
static void get_common_features(struct common_feature_property *common, int report_id)
{
common->report_id = report_id;
common->connection_type = HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM;
common->report_state = HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
common->power_state = HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
common->sensor_state = HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM;
common->report_interval = HID_DEFAULT_REPORT_INTERVAL;
}
static u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report)
{
struct accel3_feature_report acc_feature;
struct gyro_feature_report gyro_feature;
struct magno_feature_report magno_feature;
struct hpd_feature_report hpd_feature;
struct als_feature_report als_feature;
u8 report_size = 0;
if (!feature_report)
return report_size;
switch (sensor_idx) {
case accel_idx: /* accel */
get_common_features(&acc_feature.common_property, report_id);
acc_feature.accel_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
acc_feature.accel_sensitivity_min = HID_DEFAULT_MIN_VALUE;
acc_feature.accel_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &acc_feature, sizeof(acc_feature));
report_size = sizeof(acc_feature);
break;
case gyro_idx: /* gyro */
get_common_features(&gyro_feature.common_property, report_id);
gyro_feature.gyro_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
gyro_feature.gyro_sensitivity_min = HID_DEFAULT_MIN_VALUE;
gyro_feature.gyro_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &gyro_feature, sizeof(gyro_feature));
report_size = sizeof(gyro_feature);
break;
case mag_idx: /* Magnetometer */
get_common_features(&magno_feature.common_property, report_id);
magno_feature.magno_headingchange_sensitivity = HID_DEFAULT_SENSITIVITY;
magno_feature.heading_min = HID_DEFAULT_MIN_VALUE;
magno_feature.heading_max = HID_DEFAULT_MAX_VALUE;
magno_feature.flux_change_sensitivity = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_min = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &magno_feature, sizeof(magno_feature));
report_size = sizeof(magno_feature);
break;
case als_idx: /* ambient light sensor */
case ACS_IDX: /* ambient color sensor */
get_common_features(&als_feature.common_property, report_id);
als_feature.als_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
als_feature.als_sensitivity_min = HID_DEFAULT_MIN_VALUE;
als_feature.als_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &als_feature, sizeof(als_feature));
report_size = sizeof(als_feature);
break;
case HPD_IDX: /* human presence detection sensor */
get_common_features(&hpd_feature.common_property, report_id);
memcpy(feature_report, &hpd_feature, sizeof(hpd_feature));
report_size = sizeof(hpd_feature);
break;
default:
break;
}
return report_size;
}
static void get_common_inputs(struct common_input_property *common, int report_id)
{
common->report_id = report_id;
common->sensor_state = HID_USAGE_SENSOR_STATE_READY_ENUM;
common->event_type = HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM;
}
static u8 get_input_report(u8 current_index, int sensor_idx, int report_id,
struct amd_input_data *in_data)
{
struct amd_mp2_dev *privdata = container_of(in_data, struct amd_mp2_dev, in_data);
u32 *sensor_virt_addr = in_data->sensor_virt_addr[current_index];
u8 *input_report = in_data->input_report[current_index];
u8 supported_input = privdata->mp2_acs & GENMASK(3, 0);
struct magno_input_report magno_input;
struct accel3_input_report acc_input;
struct gyro_input_report gyro_input;
struct hpd_input_report hpd_input;
struct als_input_report als_input;
struct hpd_status hpdstatus;
u8 report_size = 0;
if (!sensor_virt_addr || !input_report)
return report_size;
switch (sensor_idx) {
case accel_idx: /* accel */
get_common_inputs(&acc_input.common_property, report_id);
acc_input.in_accel_x_value = (int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
acc_input.in_accel_y_value = (int)sensor_virt_addr[1] / AMD_SFH_FW_MULTIPLIER;
acc_input.in_accel_z_value = (int)sensor_virt_addr[2] / AMD_SFH_FW_MULTIPLIER;
memcpy(input_report, &acc_input, sizeof(acc_input));
report_size = sizeof(acc_input);
break;
case gyro_idx: /* gyro */
get_common_inputs(&gyro_input.common_property, report_id);
gyro_input.in_angel_x_value = (int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
gyro_input.in_angel_y_value = (int)sensor_virt_addr[1] / AMD_SFH_FW_MULTIPLIER;
gyro_input.in_angel_z_value = (int)sensor_virt_addr[2] / AMD_SFH_FW_MULTIPLIER;
memcpy(input_report, &gyro_input, sizeof(gyro_input));
report_size = sizeof(gyro_input);
break;
case mag_idx: /* Magnetometer */
get_common_inputs(&magno_input.common_property, report_id);
magno_input.in_magno_x = (int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
magno_input.in_magno_y = (int)sensor_virt_addr[1] / AMD_SFH_FW_MULTIPLIER;
magno_input.in_magno_z = (int)sensor_virt_addr[2] / AMD_SFH_FW_MULTIPLIER;
magno_input.in_magno_accuracy = (u16)sensor_virt_addr[3] / AMD_SFH_FW_MULTIPLIER;
memcpy(input_report, &magno_input, sizeof(magno_input));
report_size = sizeof(magno_input);
break;
case als_idx: /* Als */
case ACS_IDX: /* ambient color sensor */
get_common_inputs(&als_input.common_property, report_id);
/* For ALS ,V2 Platforms uses C2P_MSG5 register instead of DRAM access method */
if (supported_input == V2_STATUS)
als_input.illuminance_value =
readl(privdata->mmio + AMD_C2P_MSG(5)) & ILLUMINANCE_MASK;
else
als_input.illuminance_value =
(int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
report_size = sizeof(als_input);
memcpy(input_report, &als_input, sizeof(als_input));
break;
case HPD_IDX: /* hpd */
get_common_inputs(&hpd_input.common_property, report_id);
hpdstatus.val = readl(privdata->mmio + AMD_C2P_MSG(4));
hpd_input.human_presence = hpdstatus.shpd.human_presence_actual;
report_size = sizeof(hpd_input);
memcpy(input_report, &hpd_input, sizeof(hpd_input));
break;
default:
break;
}
return report_size;
}
void amd_sfh_set_desc_ops(struct amd_mp2_ops *mp2_ops)
{
mp2_ops->get_rep_desc = get_report_descriptor;
mp2_ops->get_feat_rep = get_feature_report;
mp2_ops->get_in_rep = get_input_report;
mp2_ops->get_desc_sz = get_descr_sz;
}
| linux-master | drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 1.1 descriptor interfaces
*
* Copyright (c) 2022, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Basavaraj Natikar <[email protected]>
*/
#include <linux/hid-sensor-ids.h>
#include "amd_sfh_interface.h"
#include "../hid_descriptor/amd_sfh_hid_desc.h"
#include "../hid_descriptor/amd_sfh_hid_report_desc.h"
#define SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM 0x41
#define SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM 0x51
#define HID_DEFAULT_REPORT_INTERVAL 0x50
#define HID_DEFAULT_MIN_VALUE 0X7F
#define HID_DEFAULT_MAX_VALUE 0x80
#define HID_DEFAULT_SENSITIVITY 0x7F
#define HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM 0x01
/* state enums */
#define HID_USAGE_SENSOR_STATE_READY_ENUM 0x02
#define HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM 0x05
#define HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM 0x04
static int get_report_desc(int sensor_idx, u8 *rep_desc)
{
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
memset(rep_desc, 0, sizeof(accel3_report_descriptor));
memcpy(rep_desc, accel3_report_descriptor,
sizeof(accel3_report_descriptor));
break;
case GYRO_IDX: /* gyroscope */
memset(rep_desc, 0, sizeof(gyro3_report_descriptor));
memcpy(rep_desc, gyro3_report_descriptor,
sizeof(gyro3_report_descriptor));
break;
case MAG_IDX: /* magnetometer */
memset(rep_desc, 0, sizeof(comp3_report_descriptor));
memcpy(rep_desc, comp3_report_descriptor,
sizeof(comp3_report_descriptor));
break;
case ALS_IDX: /* ambient light sensor */
memset(rep_desc, 0, sizeof(als_report_descriptor));
memcpy(rep_desc, als_report_descriptor,
sizeof(als_report_descriptor));
break;
case HPD_IDX: /* HPD sensor */
memset(rep_desc, 0, sizeof(hpd_report_descriptor));
memcpy(rep_desc, hpd_report_descriptor,
sizeof(hpd_report_descriptor));
break;
}
return 0;
}
static void get_common_features(struct common_feature_property *common, int report_id)
{
common->report_id = report_id;
common->connection_type = HID_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED_ENUM;
common->report_state = SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM;
common->power_state = SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM;
common->sensor_state = HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM;
common->report_interval = HID_DEFAULT_REPORT_INTERVAL;
}
static u8 get_feature_rep(int sensor_idx, int report_id, u8 *feature_report)
{
struct magno_feature_report magno_feature;
struct accel3_feature_report acc_feature;
struct gyro_feature_report gyro_feature;
struct hpd_feature_report hpd_feature;
struct als_feature_report als_feature;
u8 report_size = 0;
if (!feature_report)
return report_size;
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
get_common_features(&acc_feature.common_property, report_id);
acc_feature.accel_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
acc_feature.accel_sensitivity_min = HID_DEFAULT_MIN_VALUE;
acc_feature.accel_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &acc_feature, sizeof(acc_feature));
report_size = sizeof(acc_feature);
break;
case GYRO_IDX: /* gyroscope */
get_common_features(&gyro_feature.common_property, report_id);
gyro_feature.gyro_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
gyro_feature.gyro_sensitivity_min = HID_DEFAULT_MIN_VALUE;
gyro_feature.gyro_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &gyro_feature, sizeof(gyro_feature));
report_size = sizeof(gyro_feature);
break;
case MAG_IDX: /* magnetometer */
get_common_features(&magno_feature.common_property, report_id);
magno_feature.magno_headingchange_sensitivity = HID_DEFAULT_SENSITIVITY;
magno_feature.heading_min = HID_DEFAULT_MIN_VALUE;
magno_feature.heading_max = HID_DEFAULT_MAX_VALUE;
magno_feature.flux_change_sensitivity = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_min = HID_DEFAULT_MIN_VALUE;
magno_feature.flux_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &magno_feature, sizeof(magno_feature));
report_size = sizeof(magno_feature);
break;
case ALS_IDX: /* ambient light sensor */
get_common_features(&als_feature.common_property, report_id);
als_feature.als_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
als_feature.als_sensitivity_min = HID_DEFAULT_MIN_VALUE;
als_feature.als_sensitivity_max = HID_DEFAULT_MAX_VALUE;
memcpy(feature_report, &als_feature, sizeof(als_feature));
report_size = sizeof(als_feature);
break;
case HPD_IDX: /* human presence detection sensor */
get_common_features(&hpd_feature.common_property, report_id);
memcpy(feature_report, &hpd_feature, sizeof(hpd_feature));
report_size = sizeof(hpd_feature);
break;
}
return report_size;
}
static void get_common_inputs(struct common_input_property *common, int report_id)
{
common->report_id = report_id;
common->sensor_state = HID_USAGE_SENSOR_STATE_READY_ENUM;
common->event_type = HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM;
}
static int float_to_int(u32 flt32_val)
{
int fraction, shift, mantissa, sign, exp, zeropre;
mantissa = flt32_val & GENMASK(22, 0);
sign = (flt32_val & BIT(31)) ? -1 : 1;
exp = (flt32_val & ~BIT(31)) >> 23;
if (!exp && !mantissa)
return 0;
/*
* Calculate the exponent and fraction part of floating
* point representation.
*/
exp -= 127;
if (exp < 0) {
exp = -exp;
if (exp >= BITS_PER_TYPE(u32))
return 0;
zeropre = (((BIT(23) + mantissa) * 100) >> 23) >> exp;
return zeropre >= 50 ? sign : 0;
}
shift = 23 - exp;
if (abs(shift) >= BITS_PER_TYPE(u32))
return 0;
if (shift < 0) {
shift = -shift;
flt32_val = BIT(exp) + (mantissa << shift);
shift = 0;
} else {
flt32_val = BIT(exp) + (mantissa >> shift);
}
fraction = (shift == 0) ? 0 : mantissa & GENMASK(shift - 1, 0);
return (((fraction * 100) >> shift) >= 50) ? sign * (flt32_val + 1) : sign * flt32_val;
}
static u8 get_input_rep(u8 current_index, int sensor_idx, int report_id,
struct amd_input_data *in_data)
{
struct amd_mp2_dev *mp2 = container_of(in_data, struct amd_mp2_dev, in_data);
u8 *input_report = in_data->input_report[current_index];
struct magno_input_report magno_input;
struct accel3_input_report acc_input;
struct gyro_input_report gyro_input;
struct als_input_report als_input;
struct hpd_input_report hpd_input;
struct sfh_accel_data accel_data;
struct sfh_gyro_data gyro_data;
struct sfh_mag_data mag_data;
struct sfh_als_data als_data;
struct hpd_status hpdstatus;
void __iomem *sensoraddr;
u8 report_size = 0;
if (!input_report)
return report_size;
switch (sensor_idx) {
case ACCEL_IDX: /* accelerometer */
sensoraddr = mp2->vsbase + (ACCEL_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&accel_data, sensoraddr, sizeof(struct sfh_accel_data));
get_common_inputs(&acc_input.common_property, report_id);
acc_input.in_accel_x_value = float_to_int(accel_data.acceldata.x) / 100;
acc_input.in_accel_y_value = float_to_int(accel_data.acceldata.y) / 100;
acc_input.in_accel_z_value = float_to_int(accel_data.acceldata.z) / 100;
memcpy(input_report, &acc_input, sizeof(acc_input));
report_size = sizeof(acc_input);
break;
case GYRO_IDX: /* gyroscope */
sensoraddr = mp2->vsbase + (GYRO_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&gyro_data, sensoraddr, sizeof(struct sfh_gyro_data));
get_common_inputs(&gyro_input.common_property, report_id);
gyro_input.in_angel_x_value = float_to_int(gyro_data.gyrodata.x) / 1000;
gyro_input.in_angel_y_value = float_to_int(gyro_data.gyrodata.y) / 1000;
gyro_input.in_angel_z_value = float_to_int(gyro_data.gyrodata.z) / 1000;
memcpy(input_report, &gyro_input, sizeof(gyro_input));
report_size = sizeof(gyro_input);
break;
case MAG_IDX: /* magnetometer */
sensoraddr = mp2->vsbase + (MAG_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&mag_data, sensoraddr, sizeof(struct sfh_mag_data));
get_common_inputs(&magno_input.common_property, report_id);
magno_input.in_magno_x = float_to_int(mag_data.magdata.x) / 100;
magno_input.in_magno_y = float_to_int(mag_data.magdata.y) / 100;
magno_input.in_magno_z = float_to_int(mag_data.magdata.z) / 100;
magno_input.in_magno_accuracy = mag_data.accuracy / 100;
memcpy(input_report, &magno_input, sizeof(magno_input));
report_size = sizeof(magno_input);
break;
case ALS_IDX:
sensoraddr = mp2->vsbase + (ALS_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
OFFSET_SENSOR_DATA_DEFAULT;
memcpy_fromio(&als_data, sensoraddr, sizeof(struct sfh_als_data));
get_common_inputs(&als_input.common_property, report_id);
als_input.illuminance_value = float_to_int(als_data.lux);
report_size = sizeof(als_input);
memcpy(input_report, &als_input, sizeof(als_input));
break;
case HPD_IDX:
get_common_inputs(&hpd_input.common_property, report_id);
hpdstatus.val = readl(mp2->mmio + AMD_C2P_MSG(4));
hpd_input.human_presence = hpdstatus.shpd.presence;
report_size = sizeof(hpd_input);
memcpy(input_report, &hpd_input, sizeof(hpd_input));
break;
}
return report_size;
}
static u32 get_desc_size(int sensor_idx, int descriptor_name)
{
switch (sensor_idx) {
case ACCEL_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(accel3_report_descriptor);
case input_size:
return sizeof(struct accel3_input_report);
case feature_size:
return sizeof(struct accel3_feature_report);
}
break;
case GYRO_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(gyro3_report_descriptor);
case input_size:
return sizeof(struct gyro_input_report);
case feature_size:
return sizeof(struct gyro_feature_report);
}
break;
case MAG_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(comp3_report_descriptor);
case input_size:
return sizeof(struct magno_input_report);
case feature_size:
return sizeof(struct magno_feature_report);
}
break;
case ALS_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(als_report_descriptor);
case input_size:
return sizeof(struct als_input_report);
case feature_size:
return sizeof(struct als_feature_report);
}
break;
case HPD_IDX:
switch (descriptor_name) {
case descr_size:
return sizeof(hpd_report_descriptor);
case input_size:
return sizeof(struct hpd_input_report);
case feature_size:
return sizeof(struct hpd_feature_report);
}
break;
}
return 0;
}
void amd_sfh1_1_set_desc_ops(struct amd_mp2_ops *mp2_ops)
{
mp2_ops->get_rep_desc = get_report_desc;
mp2_ops->get_feat_rep = get_feature_rep;
mp2_ops->get_desc_sz = get_desc_size;
mp2_ops->get_in_rep = get_input_rep;
}
| linux-master | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 1.1 communication interfaces
*
* Copyright (c) 2022, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Basavaraj Natikar <[email protected]>
*/
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/iopoll.h>
#include "amd_sfh_interface.h"
static int amd_sfh_wait_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
{
struct sfh_cmd_response cmd_resp;
/* Get response with status within a max of 10000 ms timeout */
if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG(0), cmd_resp.resp,
(cmd_resp.response.response == 0 &&
cmd_resp.response.cmd_id == cmd_id && (sid == 0xff ||
cmd_resp.response.sensor_id == sid)), 500, 10000000))
return cmd_resp.response.response;
return -1;
}
static void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info)
{
struct sfh_cmd_base cmd_base;
cmd_base.ul = 0;
cmd_base.cmd.cmd_id = ENABLE_SENSOR;
cmd_base.cmd.intr_disable = 0;
cmd_base.cmd.sub_cmd_value = 1;
cmd_base.cmd.sensor_id = info.sensor_idx;
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
}
static void amd_stop_sensor(struct amd_mp2_dev *privdata, u16 sensor_idx)
{
struct sfh_cmd_base cmd_base;
cmd_base.ul = 0;
cmd_base.cmd.cmd_id = DISABLE_SENSOR;
cmd_base.cmd.intr_disable = 0;
cmd_base.cmd.sub_cmd_value = 1;
cmd_base.cmd.sensor_id = sensor_idx;
writeq(0x0, privdata->mmio + AMD_C2P_MSG(1));
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
}
static void amd_stop_all_sensor(struct amd_mp2_dev *privdata)
{
struct sfh_cmd_base cmd_base;
cmd_base.ul = 0;
cmd_base.cmd.cmd_id = DISABLE_SENSOR;
cmd_base.cmd.intr_disable = 0;
/* 0xf indicates all sensors */
cmd_base.cmd.sensor_id = 0xf;
writel(cmd_base.ul, privdata->mmio + AMD_C2P_MSG(0));
}
static struct amd_mp2_ops amd_sfh_ops = {
.start = amd_start_sensor,
.stop = amd_stop_sensor,
.stop_all = amd_stop_all_sensor,
.response = amd_sfh_wait_response,
};
void sfh_interface_init(struct amd_mp2_dev *mp2)
{
mp2->mp2_ops = &amd_sfh_ops;
}
| linux-master | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD MP2 1.1 communication driver
*
* Copyright (c) 2022, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Basavaraj Natikar <[email protected]>
*/
#include <linux/delay.h>
#include <linux/hid.h>
#include "amd_sfh_init.h"
#include "amd_sfh_interface.h"
#include "../hid_descriptor/amd_sfh_hid_desc.h"
static int amd_sfh_get_sensor_num(struct amd_mp2_dev *mp2, u8 *sensor_id)
{
struct sfh_sensor_list *slist;
struct sfh_base_info binfo;
int num_of_sensors = 0;
int i;
memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
slist = &binfo.sbase.s_list;
for (i = 0; i < MAX_IDX; i++) {
switch (i) {
case ACCEL_IDX:
case GYRO_IDX:
case MAG_IDX:
case ALS_IDX:
case HPD_IDX:
if (BIT(i) & slist->sl.sensors)
sensor_id[num_of_sensors++] = i;
break;
}
}
return num_of_sensors;
}
static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
{
if (mp2->mp2_ops->response)
return mp2->mp2_ops->response(mp2, sid, cmd_id);
return 0;
}
static const char *get_sensor_name(int idx)
{
switch (idx) {
case ACCEL_IDX:
return "accelerometer";
case GYRO_IDX:
return "gyroscope";
case MAG_IDX:
return "magnetometer";
case ALS_IDX:
return "ALS";
case HPD_IDX:
return "HPD";
default:
return "unknown sensor type";
}
}
static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
{
struct amdtp_cl_data *cl_data = privdata->cl_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
if (status == 0)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work);
cancel_delayed_work_sync(&cl_data->work_buffer);
amdtp_hid_remove(cl_data);
return 0;
}
static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
{
struct amd_input_data *in_data = &privdata->in_data;
struct amdtp_cl_data *cl_data = privdata->cl_data;
struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
struct amd_mp2_sensor_info info;
struct request_list *req_list;
u32 feature_report_size;
u32 input_report_size;
struct device *dev;
int rc, i, status;
u8 cl_idx;
req_list = &cl_data->req_list;
dev = &privdata->pdev->dev;
amd_sfh1_1_set_desc_ops(mp2_ops);
cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
if (cl_data->num_hid_devices == 0)
return -ENODEV;
cl_data->is_any_sensor_enabled = false;
INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
INIT_LIST_HEAD(&req_list->list);
cl_data->in_data = in_data;
for (i = 0; i < cl_data->num_hid_devices; i++) {
cl_data->sensor_sts[i] = SENSOR_DISABLED;
cl_data->sensor_requested_cnt[i] = 0;
cl_data->cur_hid_dev = i;
cl_idx = cl_data->sensor_idx[i];
cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
if (!cl_data->report_descr_sz[i]) {
rc = -EINVAL;
goto cleanup;
}
feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
if (!feature_report_size) {
rc = -EINVAL;
goto cleanup;
}
input_report_size = mp2_ops->get_desc_sz(cl_idx, input_size);
if (!input_report_size) {
rc = -EINVAL;
goto cleanup;
}
cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
if (!cl_data->feature_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
if (!in_data->input_report[i]) {
rc = -ENOMEM;
goto cleanup;
}
info.sensor_idx = cl_idx;
cl_data->report_descr[i] =
devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
if (!cl_data->report_descr[i]) {
rc = -ENOMEM;
goto cleanup;
}
rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
if (rc)
goto cleanup;
writel(0, privdata->mmio + AMD_P2C_MSG(0));
mp2_ops->start(privdata, info);
status = amd_sfh_wait_for_response
(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);
cl_data->sensor_sts[i] = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
}
for (i = 0; i < cl_data->num_hid_devices; i++) {
cl_data->cur_hid_dev = i;
if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
cl_data->is_any_sensor_enabled = true;
rc = amdtp_hid_probe(i, cl_data);
if (rc)
goto cleanup;
}
dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
if (!cl_data->is_any_sensor_enabled) {
dev_warn(dev, "Failed to discover, sensors not enabled is %d\n",
cl_data->is_any_sensor_enabled);
rc = -EOPNOTSUPP;
goto cleanup;
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
return 0;
cleanup:
amd_sfh_hid_client_deinit(privdata);
for (i = 0; i < cl_data->num_hid_devices; i++) {
devm_kfree(dev, cl_data->feature_report[i]);
devm_kfree(dev, in_data->input_report[i]);
devm_kfree(dev, cl_data->report_descr[i]);
}
return rc;
}
static void amd_sfh_resume(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
struct amd_mp2_sensor_info info;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
info.sensor_idx = cl_data->sensor_idx[i];
mp2->mp2_ops->start(mp2, info);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
if (status == 0)
status = SENSOR_ENABLED;
if (status == SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_ENABLED;
dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
amd_sfh_clear_intr(mp2);
}
static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
{
struct amdtp_cl_data *cl_data = mp2->cl_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (cl_data->sensor_idx[i] != HPD_IDX &&
cl_data->sensor_sts[i] == SENSOR_ENABLED) {
mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
status = amd_sfh_wait_for_response
(mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
if (status == 0)
status = SENSOR_DISABLED;
if (status != SENSOR_ENABLED)
cl_data->sensor_sts[i] = SENSOR_DISABLED;
dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
cl_data->sensor_sts[i]);
}
}
cancel_delayed_work_sync(&cl_data->work_buffer);
amd_sfh_clear_intr(mp2);
}
static void amd_mp2_pci_remove(void *privdata)
{
struct amd_mp2_dev *mp2 = privdata;
amd_sfh_hid_client_deinit(privdata);
mp2->mp2_ops->stop_all(mp2);
pci_intx(mp2->pdev, false);
amd_sfh_clear_intr(mp2);
}
static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
{
struct amd_mp2_ops *mp2_ops;
sfh_interface_init(mp2);
mp2_ops = mp2->mp2_ops;
mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
mp2_ops->init_intr = amd_sfh_irq_init_v2,
mp2_ops->suspend = amd_sfh_suspend;
mp2_ops->resume = amd_sfh_resume;
mp2_ops->remove = amd_mp2_pci_remove;
}
int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
{
u32 phy_base = readl(mp2->mmio + AMD_C2P_MSG(22));
struct device *dev = &mp2->pdev->dev;
struct sfh_base_info binfo;
int rc;
phy_base <<= 21;
if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
dev_dbg(dev, "can't reserve mmio registers\n");
return -ENOMEM;
}
mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
if (!mp2->vsbase) {
dev_dbg(dev, "failed to remap vsbase\n");
return -ENOMEM;
}
/* Before accessing give time for SFH firmware for processing configuration */
msleep(5000);
memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
if (binfo.sbase.fw_info.fw_ver == 0 || binfo.sbase.s_list.sl.sensors == 0) {
dev_dbg(dev, "failed to get sensors\n");
return -EOPNOTSUPP;
}
dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);
amd_sfh_set_ops(mp2);
rc = amd_sfh_irq_init(mp2);
if (rc) {
dev_err(dev, "amd_sfh_irq_init failed\n");
return rc;
}
rc = amd_sfh1_1_hid_client_init(mp2);
if (rc) {
dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
return rc;
}
return rc;
}
| linux-master | drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c |
// SPDX-License-Identifier: GPL-2.0
/*
* ISH-TP client driver for ISH firmware loading
*
* Copyright (c) 2019, Intel Corporation.
*/
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/intel-ish-client-if.h>
#include <linux/property.h>
#include <asm/cacheflush.h>
/* Number of times we attempt to load the firmware before giving up */
#define MAX_LOAD_ATTEMPTS 3
/* ISH TX/RX ring buffer pool size */
#define LOADER_CL_RX_RING_SIZE 1
#define LOADER_CL_TX_RING_SIZE 1
/*
* ISH Shim firmware loader reserves 4 Kb buffer in SRAM. The buffer is
* used to temporarily hold the data transferred from host to Shim
* firmware loader. Reason for the odd size of 3968 bytes? Each IPC
* transfer is 128 bytes (= 4 bytes header + 124 bytes payload). So the
* 4 Kb buffer can hold maximum of 32 IPC transfers, which means we can
* have a max payload of 3968 bytes (= 32 x 124 payload).
*/
#define LOADER_SHIM_IPC_BUF_SIZE 3968
/**
* enum ish_loader_commands - ISH loader host commands.
* @LOADER_CMD_XFER_QUERY: Query the Shim firmware loader for
* capabilities
* @LOADER_CMD_XFER_FRAGMENT: Transfer one firmware image fragment at a
* time. The command may be executed
* multiple times until the entire firmware
* image is downloaded to SRAM.
* @LOADER_CMD_START: Start executing the main firmware.
*/
enum ish_loader_commands {
LOADER_CMD_XFER_QUERY = 0,
LOADER_CMD_XFER_FRAGMENT,
LOADER_CMD_START,
};
/* Command bit mask */
#define CMD_MASK GENMASK(6, 0)
#define IS_RESPONSE BIT(7)
/*
* ISH firmware max delay for one transmit failure is 1 Hz,
* and firmware will retry 2 times, so 3 Hz is used for timeout.
*/
#define ISHTP_SEND_TIMEOUT (3 * HZ)
/*
* Loader transfer modes:
*
* LOADER_XFER_MODE_ISHTP mode uses the existing ISH-TP mechanism to
* transfer data. This may use IPC or DMA if supported in firmware.
* The buffer size is limited to 4 Kb by the IPC/ISH-TP protocol for
* both IPC & DMA (legacy).
*
* LOADER_XFER_MODE_DIRECT_DMA - firmware loading is a bit different
* from the sensor data streaming. Here we download a large (300+ Kb)
* image directly to ISH SRAM memory. There is limited benefit of
* DMA'ing 300 Kb image in 4 Kb chucks limit. Hence, we introduce
* this "direct dma" mode, where we do not use ISH-TP for DMA, but
* instead manage the DMA directly in kernel driver and Shim firmware
* loader (allocate buffer, break in chucks and transfer). This allows
* to overcome 4 Kb limit, and optimize the data flow path in firmware.
*/
#define LOADER_XFER_MODE_DIRECT_DMA BIT(0)
#define LOADER_XFER_MODE_ISHTP BIT(1)
/* ISH Transport Loader client unique GUID */
static const struct ishtp_device_id loader_ishtp_id_table[] = {
{ .guid = GUID_INIT(0xc804d06a, 0x55bd, 0x4ea7,
0xad, 0xed, 0x1e, 0x31, 0x22, 0x8c, 0x76, 0xdc) },
{ }
};
MODULE_DEVICE_TABLE(ishtp, loader_ishtp_id_table);
#define FILENAME_SIZE 256
/*
* The firmware loading latency will be minimum if we can DMA the
* entire ISH firmware image in one go. This requires that we allocate
* a large DMA buffer in kernel, which could be problematic on some
* platforms. So here we limit the DMA buffer size via a module_param.
* We default to 4 pages, but a customer can set it to higher limit if
* deemed appropriate for his platform.
*/
static int dma_buf_size_limit = 4 * PAGE_SIZE;
/**
* struct loader_msg_hdr - Header for ISH Loader commands.
* @command: LOADER_CMD* commands. Bit 7 is the response.
* @reserved: Reserved space
* @status: Command response status. Non 0, is error
* condition.
*
* This structure is used as header for every command/data sent/received
* between Host driver and ISH Shim firmware loader.
*/
struct loader_msg_hdr {
u8 command;
u8 reserved[2];
u8 status;
} __packed;
struct loader_xfer_query {
struct loader_msg_hdr hdr;
u32 image_size;
} __packed;
struct ish_fw_version {
u16 major;
u16 minor;
u16 hotfix;
u16 build;
} __packed;
union loader_version {
u32 value;
struct {
u8 major;
u8 minor;
u8 hotfix;
u8 build;
};
} __packed;
struct loader_capability {
u32 max_fw_image_size;
u32 xfer_mode;
u32 max_dma_buf_size; /* only for dma mode, multiples of cacheline */
} __packed;
struct shim_fw_info {
struct ish_fw_version ish_fw_version;
u32 protocol_version;
union loader_version ldr_version;
struct loader_capability ldr_capability;
} __packed;
struct loader_xfer_query_response {
struct loader_msg_hdr hdr;
struct shim_fw_info fw_info;
} __packed;
struct loader_xfer_fragment {
struct loader_msg_hdr hdr;
u32 xfer_mode;
u32 offset;
u32 size;
u32 is_last;
} __packed;
struct loader_xfer_ipc_fragment {
struct loader_xfer_fragment fragment;
u8 data[] ____cacheline_aligned; /* variable length payload here */
} __packed;
struct loader_xfer_dma_fragment {
struct loader_xfer_fragment fragment;
u64 ddr_phys_addr;
} __packed;
struct loader_start {
struct loader_msg_hdr hdr;
} __packed;
/**
* struct response_info - Encapsulate firmware response related
* information for passing between function
* loader_cl_send() and process_recv() callback.
* @data: Copy the data received from firmware here.
* @max_size: Max size allocated for the @data buffer. If the
* received data exceeds this value, we log an
* error.
* @size: Actual size of data received from firmware.
* @error: Returns 0 for success, negative error code for a
* failure in function process_recv().
* @received: Set to true on receiving a valid firmware
* response to host command
* @wait_queue: Wait queue for Host firmware loading where the
* client sends message to ISH firmware and waits
* for response
*/
struct response_info {
void *data;
size_t max_size;
size_t size;
int error;
bool received;
wait_queue_head_t wait_queue;
};
/*
* struct ishtp_cl_data - Encapsulate per ISH-TP Client Data.
* @work_ishtp_reset: Work queue for reset handling.
* @work_fw_load: Work queue for host firmware loading.
* @flag_retry: Flag for indicating host firmware loading should
* be retried.
* @retry_count: Count the number of retries.
*
* This structure is used to store data per client.
*/
struct ishtp_cl_data {
struct ishtp_cl *loader_ishtp_cl;
struct ishtp_cl_device *cl_device;
/*
* Used for passing firmware response information between
* loader_cl_send() and process_recv() callback.
*/
struct response_info response;
struct work_struct work_ishtp_reset;
struct work_struct work_fw_load;
/*
* In certain failure scenrios, it makes sense to reset the ISH
* subsystem and retry Host firmware loading (e.g. bad message
* packet, ENOMEM, etc.). On the other hand, failures due to
* protocol mismatch, etc., are not recoverable. We do not
* retry them.
*
* If set, the flag indicates that we should re-try the
* particular failure.
*/
bool flag_retry;
int retry_count;
};
#define IPC_FRAGMENT_DATA_PREAMBLE \
offsetof(struct loader_xfer_ipc_fragment, data)
#define cl_data_to_dev(client_data) ishtp_device((client_data)->cl_device)
/**
* get_firmware_variant() - Gets the filename of firmware image to be
* loaded based on platform variant.
* @client_data: Client data instance.
* @filename: Returns firmware filename.
*
* Queries the firmware-name device property string.
*
* Return: 0 for success, negative error code for failure.
*/
static int get_firmware_variant(struct ishtp_cl_data *client_data,
char *filename)
{
int rv;
const char *val;
struct device *devc = ishtp_get_pci_device(client_data->cl_device);
rv = device_property_read_string(devc, "firmware-name", &val);
if (rv < 0) {
dev_err(devc,
"Error: ISH firmware-name device property required\n");
return rv;
}
return snprintf(filename, FILENAME_SIZE, "intel/%s", val);
}
/**
* loader_cl_send() - Send message from host to firmware
*
* @client_data: Client data instance
* @out_msg: Message buffer to be sent to firmware
* @out_size: Size of out going message
* @in_msg: Message buffer where the incoming data copied.
* This buffer is allocated by calling
* @in_size: Max size of incoming message
*
* Return: Number of bytes copied in the in_msg on success, negative
* error code on failure.
*/
static int loader_cl_send(struct ishtp_cl_data *client_data,
u8 *out_msg, size_t out_size,
u8 *in_msg, size_t in_size)
{
int rv;
struct loader_msg_hdr *out_hdr = (struct loader_msg_hdr *)out_msg;
struct ishtp_cl *loader_ishtp_cl = client_data->loader_ishtp_cl;
dev_dbg(cl_data_to_dev(client_data),
"%s: command=%02lx is_response=%u status=%02x\n",
__func__,
out_hdr->command & CMD_MASK,
out_hdr->command & IS_RESPONSE ? 1 : 0,
out_hdr->status);
/* Setup in coming buffer & size */
client_data->response.data = in_msg;
client_data->response.max_size = in_size;
client_data->response.error = 0;
client_data->response.received = false;
rv = ishtp_cl_send(loader_ishtp_cl, out_msg, out_size);
if (rv < 0) {
dev_err(cl_data_to_dev(client_data),
"ishtp_cl_send error %d\n", rv);
return rv;
}
wait_event_interruptible_timeout(client_data->response.wait_queue,
client_data->response.received,
ISHTP_SEND_TIMEOUT);
if (!client_data->response.received) {
dev_err(cl_data_to_dev(client_data),
"Timed out for response to command=%02lx",
out_hdr->command & CMD_MASK);
return -ETIMEDOUT;
}
if (client_data->response.error < 0)
return client_data->response.error;
return client_data->response.size;
}
/**
* process_recv() - Receive and parse incoming packet
* @loader_ishtp_cl: Client instance to get stats
* @rb_in_proc: ISH received message buffer
*
* Parse the incoming packet. If it is a response packet then it will
* update received and wake up the caller waiting to for the response.
*/
static void process_recv(struct ishtp_cl *loader_ishtp_cl,
struct ishtp_cl_rb *rb_in_proc)
{
struct loader_msg_hdr *hdr;
size_t data_len = rb_in_proc->buf_idx;
struct ishtp_cl_data *client_data =
ishtp_get_client_data(loader_ishtp_cl);
/* Sanity check */
if (!client_data->response.data) {
dev_err(cl_data_to_dev(client_data),
"Receiving buffer is null. Should be allocated by calling function\n");
client_data->response.error = -EINVAL;
goto end;
}
if (client_data->response.received) {
dev_err(cl_data_to_dev(client_data),
"Previous firmware message not yet processed\n");
client_data->response.error = -EINVAL;
goto end;
}
/*
* All firmware messages have a header. Check buffer size
* before accessing elements inside.
*/
if (!rb_in_proc->buffer.data) {
dev_warn(cl_data_to_dev(client_data),
"rb_in_proc->buffer.data returned null");
client_data->response.error = -EBADMSG;
goto end;
}
if (data_len < sizeof(struct loader_msg_hdr)) {
dev_err(cl_data_to_dev(client_data),
"data size %zu is less than header %zu\n",
data_len, sizeof(struct loader_msg_hdr));
client_data->response.error = -EMSGSIZE;
goto end;
}
hdr = (struct loader_msg_hdr *)rb_in_proc->buffer.data;
dev_dbg(cl_data_to_dev(client_data),
"%s: command=%02lx is_response=%u status=%02x\n",
__func__,
hdr->command & CMD_MASK,
hdr->command & IS_RESPONSE ? 1 : 0,
hdr->status);
if (((hdr->command & CMD_MASK) != LOADER_CMD_XFER_QUERY) &&
((hdr->command & CMD_MASK) != LOADER_CMD_XFER_FRAGMENT) &&
((hdr->command & CMD_MASK) != LOADER_CMD_START)) {
dev_err(cl_data_to_dev(client_data),
"Invalid command=%02lx\n",
hdr->command & CMD_MASK);
client_data->response.error = -EPROTO;
goto end;
}
if (data_len > client_data->response.max_size) {
dev_err(cl_data_to_dev(client_data),
"Received buffer size %zu is larger than allocated buffer %zu\n",
data_len, client_data->response.max_size);
client_data->response.error = -EMSGSIZE;
goto end;
}
/* We expect only "response" messages from firmware */
if (!(hdr->command & IS_RESPONSE)) {
dev_err(cl_data_to_dev(client_data),
"Invalid response to command\n");
client_data->response.error = -EIO;
goto end;
}
if (hdr->status) {
dev_err(cl_data_to_dev(client_data),
"Loader returned status %d\n",
hdr->status);
client_data->response.error = -EIO;
goto end;
}
/* Update the actual received buffer size */
client_data->response.size = data_len;
/*
* Copy the buffer received in firmware response for the
* calling thread.
*/
memcpy(client_data->response.data,
rb_in_proc->buffer.data, data_len);
/* Set flag before waking up the caller */
client_data->response.received = true;
end:
/* Free the buffer */
ishtp_cl_io_rb_recycle(rb_in_proc);
rb_in_proc = NULL;
/* Wake the calling thread */
wake_up_interruptible(&client_data->response.wait_queue);
}
/**
* loader_cl_event_cb() - bus driver callback for incoming message
* @cl_device: Pointer to the ishtp client device for which this
* message is targeted
*
* Remove the packet from the list and process the message by calling
* process_recv
*/
static void loader_cl_event_cb(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl_rb *rb_in_proc;
struct ishtp_cl *loader_ishtp_cl = ishtp_get_drvdata(cl_device);
while ((rb_in_proc = ishtp_cl_rx_get_rb(loader_ishtp_cl)) != NULL) {
/* Process the data packet from firmware */
process_recv(loader_ishtp_cl, rb_in_proc);
}
}
/**
* ish_query_loader_prop() - Query ISH Shim firmware loader
* @client_data: Client data instance
* @fw: Pointer to firmware data struct in host memory
* @fw_info: Loader firmware properties
*
* This function queries the ISH Shim firmware loader for capabilities.
*
* Return: 0 for success, negative error code for failure.
*/
static int ish_query_loader_prop(struct ishtp_cl_data *client_data,
const struct firmware *fw,
struct shim_fw_info *fw_info)
{
int rv;
struct loader_xfer_query ldr_xfer_query;
struct loader_xfer_query_response ldr_xfer_query_resp;
memset(&ldr_xfer_query, 0, sizeof(ldr_xfer_query));
ldr_xfer_query.hdr.command = LOADER_CMD_XFER_QUERY;
ldr_xfer_query.image_size = fw->size;
rv = loader_cl_send(client_data,
(u8 *)&ldr_xfer_query,
sizeof(ldr_xfer_query),
(u8 *)&ldr_xfer_query_resp,
sizeof(ldr_xfer_query_resp));
if (rv < 0) {
client_data->flag_retry = true;
*fw_info = (struct shim_fw_info){};
return rv;
}
/* On success, the return value is the received buffer size */
if (rv != sizeof(struct loader_xfer_query_response)) {
dev_err(cl_data_to_dev(client_data),
"data size %d is not equal to size of loader_xfer_query_response %zu\n",
rv, sizeof(struct loader_xfer_query_response));
client_data->flag_retry = true;
*fw_info = (struct shim_fw_info){};
return -EMSGSIZE;
}
/* Save fw_info for use outside this function */
*fw_info = ldr_xfer_query_resp.fw_info;
/* Loader firmware properties */
dev_dbg(cl_data_to_dev(client_data),
"ish_fw_version: major=%d minor=%d hotfix=%d build=%d protocol_version=0x%x loader_version=%d\n",
fw_info->ish_fw_version.major,
fw_info->ish_fw_version.minor,
fw_info->ish_fw_version.hotfix,
fw_info->ish_fw_version.build,
fw_info->protocol_version,
fw_info->ldr_version.value);
dev_dbg(cl_data_to_dev(client_data),
"loader_capability: max_fw_image_size=0x%x xfer_mode=%d max_dma_buf_size=0x%x dma_buf_size_limit=0x%x\n",
fw_info->ldr_capability.max_fw_image_size,
fw_info->ldr_capability.xfer_mode,
fw_info->ldr_capability.max_dma_buf_size,
dma_buf_size_limit);
/* Sanity checks */
if (fw_info->ldr_capability.max_fw_image_size < fw->size) {
dev_err(cl_data_to_dev(client_data),
"ISH firmware size %zu is greater than Shim firmware loader max supported %d\n",
fw->size,
fw_info->ldr_capability.max_fw_image_size);
return -ENOSPC;
}
/* For DMA the buffer size should be multiple of cacheline size */
if ((fw_info->ldr_capability.xfer_mode & LOADER_XFER_MODE_DIRECT_DMA) &&
(fw_info->ldr_capability.max_dma_buf_size % L1_CACHE_BYTES)) {
dev_err(cl_data_to_dev(client_data),
"Shim firmware loader buffer size %d should be multiple of cacheline\n",
fw_info->ldr_capability.max_dma_buf_size);
return -EINVAL;
}
return 0;
}
/**
* ish_fw_xfer_ishtp() - Loads ISH firmware using ishtp interface
* @client_data: Client data instance
* @fw: Pointer to firmware data struct in host memory
*
* This function uses ISH-TP to transfer ISH firmware from host to
* ISH SRAM. Lower layers may use IPC or DMA depending on firmware
* support.
*
* Return: 0 for success, negative error code for failure.
*/
static int ish_fw_xfer_ishtp(struct ishtp_cl_data *client_data,
const struct firmware *fw)
{
int rv;
u32 fragment_offset, fragment_size, payload_max_size;
struct loader_xfer_ipc_fragment *ldr_xfer_ipc_frag;
struct loader_msg_hdr ldr_xfer_ipc_ack;
payload_max_size =
LOADER_SHIM_IPC_BUF_SIZE - IPC_FRAGMENT_DATA_PREAMBLE;
ldr_xfer_ipc_frag = kzalloc(LOADER_SHIM_IPC_BUF_SIZE, GFP_KERNEL);
if (!ldr_xfer_ipc_frag) {
client_data->flag_retry = true;
return -ENOMEM;
}
ldr_xfer_ipc_frag->fragment.hdr.command = LOADER_CMD_XFER_FRAGMENT;
ldr_xfer_ipc_frag->fragment.xfer_mode = LOADER_XFER_MODE_ISHTP;
/* Break the firmware image into fragments and send as ISH-TP payload */
fragment_offset = 0;
while (fragment_offset < fw->size) {
if (fragment_offset + payload_max_size < fw->size) {
fragment_size = payload_max_size;
ldr_xfer_ipc_frag->fragment.is_last = 0;
} else {
fragment_size = fw->size - fragment_offset;
ldr_xfer_ipc_frag->fragment.is_last = 1;
}
ldr_xfer_ipc_frag->fragment.offset = fragment_offset;
ldr_xfer_ipc_frag->fragment.size = fragment_size;
memcpy(ldr_xfer_ipc_frag->data,
&fw->data[fragment_offset],
fragment_size);
dev_dbg(cl_data_to_dev(client_data),
"xfer_mode=ipc offset=0x%08x size=0x%08x is_last=%d\n",
ldr_xfer_ipc_frag->fragment.offset,
ldr_xfer_ipc_frag->fragment.size,
ldr_xfer_ipc_frag->fragment.is_last);
rv = loader_cl_send(client_data,
(u8 *)ldr_xfer_ipc_frag,
IPC_FRAGMENT_DATA_PREAMBLE + fragment_size,
(u8 *)&ldr_xfer_ipc_ack,
sizeof(ldr_xfer_ipc_ack));
if (rv < 0) {
client_data->flag_retry = true;
goto end_err_resp_buf_release;
}
fragment_offset += fragment_size;
}
kfree(ldr_xfer_ipc_frag);
return 0;
end_err_resp_buf_release:
/* Free ISH buffer if not done already, in error case */
kfree(ldr_xfer_ipc_frag);
return rv;
}
/**
* ish_fw_xfer_direct_dma() - Loads ISH firmware using direct dma
* @client_data: Client data instance
* @fw: Pointer to firmware data struct in host memory
* @fw_info: Loader firmware properties
*
* Host firmware load is a unique case where we need to download
* a large firmware image (200+ Kb). This function implements
* direct DMA transfer in kernel and ISH firmware. This allows
* us to overcome the ISH-TP 4 Kb limit, and allows us to DMA
* directly to ISH UMA at location of choice.
* Function depends on corresponding support in ISH firmware.
*
* Return: 0 for success, negative error code for failure.
*/
static int ish_fw_xfer_direct_dma(struct ishtp_cl_data *client_data,
const struct firmware *fw,
const struct shim_fw_info fw_info)
{
int rv;
void *dma_buf;
dma_addr_t dma_buf_phy;
u32 fragment_offset, fragment_size, payload_max_size;
struct loader_msg_hdr ldr_xfer_dma_frag_ack;
struct loader_xfer_dma_fragment ldr_xfer_dma_frag;
struct device *devc = ishtp_get_pci_device(client_data->cl_device);
u32 shim_fw_buf_size =
fw_info.ldr_capability.max_dma_buf_size;
/*
* payload_max_size should be set to minimum of
* (1) Size of firmware to be loaded,
* (2) Max DMA buffer size supported by Shim firmware,
* (3) DMA buffer size limit set by boot_param dma_buf_size_limit.
*/
payload_max_size = min3(fw->size,
(size_t)shim_fw_buf_size,
(size_t)dma_buf_size_limit);
/*
* Buffer size should be multiple of cacheline size
* if it's not, select the previous cacheline boundary.
*/
payload_max_size &= ~(L1_CACHE_BYTES - 1);
dma_buf = dma_alloc_coherent(devc, payload_max_size, &dma_buf_phy, GFP_KERNEL);
if (!dma_buf) {
client_data->flag_retry = true;
return -ENOMEM;
}
ldr_xfer_dma_frag.fragment.hdr.command = LOADER_CMD_XFER_FRAGMENT;
ldr_xfer_dma_frag.fragment.xfer_mode = LOADER_XFER_MODE_DIRECT_DMA;
ldr_xfer_dma_frag.ddr_phys_addr = (u64)dma_buf_phy;
/* Send the firmware image in chucks of payload_max_size */
fragment_offset = 0;
while (fragment_offset < fw->size) {
if (fragment_offset + payload_max_size < fw->size) {
fragment_size = payload_max_size;
ldr_xfer_dma_frag.fragment.is_last = 0;
} else {
fragment_size = fw->size - fragment_offset;
ldr_xfer_dma_frag.fragment.is_last = 1;
}
ldr_xfer_dma_frag.fragment.offset = fragment_offset;
ldr_xfer_dma_frag.fragment.size = fragment_size;
memcpy(dma_buf, &fw->data[fragment_offset], fragment_size);
/* Flush cache to be sure the data is in main memory. */
clflush_cache_range(dma_buf, payload_max_size);
dev_dbg(cl_data_to_dev(client_data),
"xfer_mode=dma offset=0x%08x size=0x%x is_last=%d ddr_phys_addr=0x%016llx\n",
ldr_xfer_dma_frag.fragment.offset,
ldr_xfer_dma_frag.fragment.size,
ldr_xfer_dma_frag.fragment.is_last,
ldr_xfer_dma_frag.ddr_phys_addr);
rv = loader_cl_send(client_data,
(u8 *)&ldr_xfer_dma_frag,
sizeof(ldr_xfer_dma_frag),
(u8 *)&ldr_xfer_dma_frag_ack,
sizeof(ldr_xfer_dma_frag_ack));
if (rv < 0) {
client_data->flag_retry = true;
goto end_err_resp_buf_release;
}
fragment_offset += fragment_size;
}
end_err_resp_buf_release:
dma_free_coherent(devc, payload_max_size, dma_buf, dma_buf_phy);
return rv;
}
/**
* ish_fw_start() - Start executing ISH main firmware
* @client_data: client data instance
*
* This function sends message to Shim firmware loader to start
* the execution of ISH main firmware.
*
* Return: 0 for success, negative error code for failure.
*/
static int ish_fw_start(struct ishtp_cl_data *client_data)
{
struct loader_start ldr_start;
struct loader_msg_hdr ldr_start_ack;
memset(&ldr_start, 0, sizeof(ldr_start));
ldr_start.hdr.command = LOADER_CMD_START;
return loader_cl_send(client_data,
(u8 *)&ldr_start,
sizeof(ldr_start),
(u8 *)&ldr_start_ack,
sizeof(ldr_start_ack));
}
/**
* load_fw_from_host() - Loads ISH firmware from host
* @client_data: Client data instance
*
* This function loads the ISH firmware to ISH SRAM and starts execution
*
* Return: 0 for success, negative error code for failure.
*/
static int load_fw_from_host(struct ishtp_cl_data *client_data)
{
int rv;
u32 xfer_mode;
char *filename;
const struct firmware *fw;
struct shim_fw_info fw_info;
struct ishtp_cl *loader_ishtp_cl = client_data->loader_ishtp_cl;
client_data->flag_retry = false;
filename = kzalloc(FILENAME_SIZE, GFP_KERNEL);
if (!filename) {
client_data->flag_retry = true;
rv = -ENOMEM;
goto end_error;
}
/* Get filename of the ISH firmware to be loaded */
rv = get_firmware_variant(client_data, filename);
if (rv < 0)
goto end_err_filename_buf_release;
rv = request_firmware(&fw, filename, cl_data_to_dev(client_data));
if (rv < 0)
goto end_err_filename_buf_release;
/* Step 1: Query Shim firmware loader properties */
rv = ish_query_loader_prop(client_data, fw, &fw_info);
if (rv < 0)
goto end_err_fw_release;
/* Step 2: Send the main firmware image to be loaded, to ISH SRAM */
xfer_mode = fw_info.ldr_capability.xfer_mode;
if (xfer_mode & LOADER_XFER_MODE_DIRECT_DMA) {
rv = ish_fw_xfer_direct_dma(client_data, fw, fw_info);
} else if (xfer_mode & LOADER_XFER_MODE_ISHTP) {
rv = ish_fw_xfer_ishtp(client_data, fw);
} else {
dev_err(cl_data_to_dev(client_data),
"No transfer mode selected in firmware\n");
rv = -EINVAL;
}
if (rv < 0)
goto end_err_fw_release;
/* Step 3: Start ISH main firmware exeuction */
rv = ish_fw_start(client_data);
if (rv < 0)
goto end_err_fw_release;
release_firmware(fw);
dev_info(cl_data_to_dev(client_data), "ISH firmware %s loaded\n",
filename);
kfree(filename);
return 0;
end_err_fw_release:
release_firmware(fw);
end_err_filename_buf_release:
kfree(filename);
end_error:
/* Keep a count of retries, and give up after 3 attempts */
if (client_data->flag_retry &&
client_data->retry_count++ < MAX_LOAD_ATTEMPTS) {
dev_warn(cl_data_to_dev(client_data),
"ISH host firmware load failed %d. Resetting ISH, and trying again..\n",
rv);
ish_hw_reset(ishtp_get_ishtp_device(loader_ishtp_cl));
} else {
dev_err(cl_data_to_dev(client_data),
"ISH host firmware load failed %d\n", rv);
}
return rv;
}
static void load_fw_from_host_handler(struct work_struct *work)
{
struct ishtp_cl_data *client_data;
client_data = container_of(work, struct ishtp_cl_data,
work_fw_load);
load_fw_from_host(client_data);
}
/**
* loader_init() - Init function for ISH-TP client
* @loader_ishtp_cl: ISH-TP client instance
* @reset: true if called for init after reset
*
* Return: 0 for success, negative error code for failure
*/
static int loader_init(struct ishtp_cl *loader_ishtp_cl, int reset)
{
int rv;
struct ishtp_fw_client *fw_client;
struct ishtp_cl_data *client_data =
ishtp_get_client_data(loader_ishtp_cl);
dev_dbg(cl_data_to_dev(client_data), "reset flag: %d\n", reset);
rv = ishtp_cl_link(loader_ishtp_cl);
if (rv < 0) {
dev_err(cl_data_to_dev(client_data), "ishtp_cl_link failed\n");
return rv;
}
/* Connect to firmware client */
ishtp_set_tx_ring_size(loader_ishtp_cl, LOADER_CL_TX_RING_SIZE);
ishtp_set_rx_ring_size(loader_ishtp_cl, LOADER_CL_RX_RING_SIZE);
fw_client =
ishtp_fw_cl_get_client(ishtp_get_ishtp_device(loader_ishtp_cl),
&loader_ishtp_id_table[0].guid);
if (!fw_client) {
dev_err(cl_data_to_dev(client_data),
"ISH client uuid not found\n");
rv = -ENOENT;
goto err_cl_unlink;
}
ishtp_cl_set_fw_client_id(loader_ishtp_cl,
ishtp_get_fw_client_id(fw_client));
ishtp_set_connection_state(loader_ishtp_cl, ISHTP_CL_CONNECTING);
rv = ishtp_cl_connect(loader_ishtp_cl);
if (rv < 0) {
dev_err(cl_data_to_dev(client_data), "Client connect fail\n");
goto err_cl_unlink;
}
dev_dbg(cl_data_to_dev(client_data), "Client connected\n");
ishtp_register_event_cb(client_data->cl_device, loader_cl_event_cb);
return 0;
err_cl_unlink:
ishtp_cl_unlink(loader_ishtp_cl);
return rv;
}
static void loader_deinit(struct ishtp_cl *loader_ishtp_cl)
{
ishtp_set_connection_state(loader_ishtp_cl, ISHTP_CL_DISCONNECTING);
ishtp_cl_disconnect(loader_ishtp_cl);
ishtp_cl_unlink(loader_ishtp_cl);
ishtp_cl_flush_queues(loader_ishtp_cl);
/* Disband and free all Tx and Rx client-level rings */
ishtp_cl_free(loader_ishtp_cl);
}
static void reset_handler(struct work_struct *work)
{
int rv;
struct ishtp_cl_data *client_data;
struct ishtp_cl *loader_ishtp_cl;
struct ishtp_cl_device *cl_device;
client_data = container_of(work, struct ishtp_cl_data,
work_ishtp_reset);
loader_ishtp_cl = client_data->loader_ishtp_cl;
cl_device = client_data->cl_device;
/* Unlink, flush queues & start again */
ishtp_cl_unlink(loader_ishtp_cl);
ishtp_cl_flush_queues(loader_ishtp_cl);
ishtp_cl_free(loader_ishtp_cl);
loader_ishtp_cl = ishtp_cl_allocate(cl_device);
if (!loader_ishtp_cl)
return;
ishtp_set_drvdata(cl_device, loader_ishtp_cl);
ishtp_set_client_data(loader_ishtp_cl, client_data);
client_data->loader_ishtp_cl = loader_ishtp_cl;
client_data->cl_device = cl_device;
rv = loader_init(loader_ishtp_cl, 1);
if (rv < 0) {
dev_err(ishtp_device(cl_device), "Reset Failed\n");
return;
}
/* ISH firmware loading from host */
load_fw_from_host(client_data);
}
/**
* loader_ishtp_cl_probe() - ISH-TP client driver probe
* @cl_device: ISH-TP client device instance
*
* This function gets called on device create on ISH-TP bus
*
* Return: 0 for success, negative error code for failure
*/
static int loader_ishtp_cl_probe(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl *loader_ishtp_cl;
struct ishtp_cl_data *client_data;
int rv;
client_data = devm_kzalloc(ishtp_device(cl_device),
sizeof(*client_data),
GFP_KERNEL);
if (!client_data)
return -ENOMEM;
loader_ishtp_cl = ishtp_cl_allocate(cl_device);
if (!loader_ishtp_cl)
return -ENOMEM;
ishtp_set_drvdata(cl_device, loader_ishtp_cl);
ishtp_set_client_data(loader_ishtp_cl, client_data);
client_data->loader_ishtp_cl = loader_ishtp_cl;
client_data->cl_device = cl_device;
init_waitqueue_head(&client_data->response.wait_queue);
INIT_WORK(&client_data->work_ishtp_reset,
reset_handler);
INIT_WORK(&client_data->work_fw_load,
load_fw_from_host_handler);
rv = loader_init(loader_ishtp_cl, 0);
if (rv < 0) {
ishtp_cl_free(loader_ishtp_cl);
return rv;
}
ishtp_get_device(cl_device);
client_data->retry_count = 0;
/* ISH firmware loading from host */
schedule_work(&client_data->work_fw_load);
return 0;
}
/**
* loader_ishtp_cl_remove() - ISH-TP client driver remove
* @cl_device: ISH-TP client device instance
*
* This function gets called on device remove on ISH-TP bus
*
* Return: 0
*/
static void loader_ishtp_cl_remove(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl_data *client_data;
struct ishtp_cl *loader_ishtp_cl = ishtp_get_drvdata(cl_device);
client_data = ishtp_get_client_data(loader_ishtp_cl);
/*
* The sequence of the following two cancel_work_sync() is
* important. The work_fw_load can in turn schedue
* work_ishtp_reset, so first cancel work_fw_load then
* cancel work_ishtp_reset.
*/
cancel_work_sync(&client_data->work_fw_load);
cancel_work_sync(&client_data->work_ishtp_reset);
loader_deinit(loader_ishtp_cl);
ishtp_put_device(cl_device);
}
/**
* loader_ishtp_cl_reset() - ISH-TP client driver reset
* @cl_device: ISH-TP client device instance
*
* This function gets called on device reset on ISH-TP bus
*
* Return: 0
*/
static int loader_ishtp_cl_reset(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl_data *client_data;
struct ishtp_cl *loader_ishtp_cl = ishtp_get_drvdata(cl_device);
client_data = ishtp_get_client_data(loader_ishtp_cl);
schedule_work(&client_data->work_ishtp_reset);
return 0;
}
static struct ishtp_cl_driver loader_ishtp_cl_driver = {
.name = "ish-loader",
.id = loader_ishtp_id_table,
.probe = loader_ishtp_cl_probe,
.remove = loader_ishtp_cl_remove,
.reset = loader_ishtp_cl_reset,
};
static int __init ish_loader_init(void)
{
return ishtp_cl_driver_register(&loader_ishtp_cl_driver, THIS_MODULE);
}
static void __exit ish_loader_exit(void)
{
ishtp_cl_driver_unregister(&loader_ishtp_cl_driver);
}
late_initcall(ish_loader_init);
module_exit(ish_loader_exit);
module_param(dma_buf_size_limit, int, 0644);
MODULE_PARM_DESC(dma_buf_size_limit, "Limit the DMA buf size to this value in bytes");
MODULE_DESCRIPTION("ISH ISH-TP Host firmware Loader Client Driver");
MODULE_AUTHOR("Rushikesh S Kadam <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/intel-ish-hid/ishtp-fw-loader.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* ISHTP client driver for HID (ISH)
*
* Copyright (c) 2014-2016, Intel Corporation.
*/
#include <linux/module.h>
#include <linux/hid.h>
#include <linux/intel-ish-client-if.h>
#include <linux/sched.h>
#include "ishtp-hid.h"
/* ISH Transport protocol (ISHTP in short) GUID */
static const struct ishtp_device_id hid_ishtp_id_table[] = {
{ .guid = GUID_INIT(0x33AECD58, 0xB679, 0x4E54,
0x9B, 0xD9, 0xA0, 0x4D, 0x34, 0xF0, 0xC2, 0x26), },
{ }
};
MODULE_DEVICE_TABLE(ishtp, hid_ishtp_id_table);
/* Rx ring buffer pool size */
#define HID_CL_RX_RING_SIZE 32
#define HID_CL_TX_RING_SIZE 16
#define cl_data_to_dev(client_data) ishtp_device(client_data->cl_device)
/**
* report_bad_packet() - Report bad packets
* @hid_ishtp_cl: Client instance to get stats
* @recv_buf: Raw received host interface message
* @cur_pos: Current position index in payload
* @payload_len: Length of payload expected
*
* Dumps error in case bad packet is received
*/
static void report_bad_packet(struct ishtp_cl *hid_ishtp_cl, void *recv_buf,
size_t cur_pos, size_t payload_len)
{
struct hostif_msg *recv_msg = recv_buf;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
dev_err(cl_data_to_dev(client_data), "[hid-ish]: BAD packet %02X\n"
"total_bad=%u cur_pos=%u\n"
"[%02X %02X %02X %02X]\n"
"payload_len=%u\n"
"multi_packet_cnt=%u\n"
"is_response=%02X\n",
recv_msg->hdr.command, client_data->bad_recv_cnt,
(unsigned int)cur_pos,
((unsigned char *)recv_msg)[0], ((unsigned char *)recv_msg)[1],
((unsigned char *)recv_msg)[2], ((unsigned char *)recv_msg)[3],
(unsigned int)payload_len, client_data->multi_packet_cnt,
recv_msg->hdr.command & ~CMD_MASK);
}
/**
* process_recv() - Received and parse incoming packet
* @hid_ishtp_cl: Client instance to get stats
* @recv_buf: Raw received host interface message
* @data_len: length of the message
*
* Parse the incoming packet. If it is a response packet then it will update
* per instance flags and wake up the caller waiting to for the response.
*/
static void process_recv(struct ishtp_cl *hid_ishtp_cl, void *recv_buf,
size_t data_len)
{
struct hostif_msg *recv_msg;
unsigned char *payload;
struct device_info *dev_info;
int i, j;
size_t payload_len, total_len, cur_pos, raw_len;
int report_type;
struct report_list *reports_list;
char *reports;
size_t report_len;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
int curr_hid_dev = client_data->cur_hid_dev;
struct ishtp_hid_data *hid_data = NULL;
struct hid_device *hid = NULL;
payload = recv_buf + sizeof(struct hostif_msg_hdr);
total_len = data_len;
cur_pos = 0;
do {
if (cur_pos + sizeof(struct hostif_msg) > total_len) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: error, received %u which is less than data header %u\n",
(unsigned int)data_len,
(unsigned int)sizeof(struct hostif_msg_hdr));
++client_data->bad_recv_cnt;
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
recv_msg = (struct hostif_msg *)(recv_buf + cur_pos);
payload_len = recv_msg->hdr.size;
/* Sanity checks */
if (cur_pos + payload_len + sizeof(struct hostif_msg) >
total_len) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg, cur_pos,
payload_len);
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
hid_ishtp_trace(client_data, "%s %d\n",
__func__, recv_msg->hdr.command & CMD_MASK);
switch (recv_msg->hdr.command & CMD_MASK) {
case HOSTIF_DM_ENUM_DEVICES:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
client_data->hid_dev_count = (unsigned int)*payload;
if (!client_data->hid_devices)
client_data->hid_devices = devm_kcalloc(
cl_data_to_dev(client_data),
client_data->hid_dev_count,
sizeof(struct device_info),
GFP_KERNEL);
if (!client_data->hid_devices) {
dev_err(cl_data_to_dev(client_data),
"Mem alloc failed for hid device info\n");
wake_up_interruptible(&client_data->init_wait);
break;
}
for (i = 0; i < client_data->hid_dev_count; ++i) {
if (1 + sizeof(struct device_info) * i >=
payload_len) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: [ENUM_DEVICES]: content size %zu is bigger than payload_len %zu\n",
1 + sizeof(struct device_info)
* i, payload_len);
}
if (1 + sizeof(struct device_info) * i >=
data_len)
break;
dev_info = (struct device_info *)(payload + 1 +
sizeof(struct device_info) * i);
if (client_data->hid_devices)
memcpy(client_data->hid_devices + i,
dev_info,
sizeof(struct device_info));
}
client_data->enum_devices_done = true;
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_HID_DESCRIPTOR:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
if (!client_data->hid_descr[curr_hid_dev])
client_data->hid_descr[curr_hid_dev] =
devm_kmalloc(cl_data_to_dev(client_data),
payload_len, GFP_KERNEL);
if (client_data->hid_descr[curr_hid_dev]) {
memcpy(client_data->hid_descr[curr_hid_dev],
payload, payload_len);
client_data->hid_descr_size[curr_hid_dev] =
payload_len;
client_data->hid_descr_done = true;
}
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_REPORT_DESCRIPTOR:
if ((!(recv_msg->hdr.command & ~CMD_MASK) ||
client_data->init_done)) {
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg,
cur_pos,
payload_len);
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
if (!client_data->report_descr[curr_hid_dev])
client_data->report_descr[curr_hid_dev] =
devm_kmalloc(cl_data_to_dev(client_data),
payload_len, GFP_KERNEL);
if (client_data->report_descr[curr_hid_dev]) {
memcpy(client_data->report_descr[curr_hid_dev],
payload,
payload_len);
client_data->report_descr_size[curr_hid_dev] =
payload_len;
client_data->report_descr_done = true;
}
wake_up_interruptible(&client_data->init_wait);
break;
case HOSTIF_GET_FEATURE_REPORT:
report_type = HID_FEATURE_REPORT;
goto do_get_report;
case HOSTIF_GET_INPUT_REPORT:
report_type = HID_INPUT_REPORT;
do_get_report:
/* Get index of device that matches this id */
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id) {
hid = client_data->hid_sensor_hubs[i];
if (!hid)
break;
hid_data = hid->driver_data;
if (hid_data->raw_get_req) {
raw_len =
(hid_data->raw_buf_size <
payload_len) ?
hid_data->raw_buf_size :
payload_len;
memcpy(hid_data->raw_buf,
payload, raw_len);
} else {
hid_input_report
(hid, report_type,
payload, payload_len,
0);
}
ishtp_hid_wakeup(hid);
break;
}
}
break;
case HOSTIF_SET_FEATURE_REPORT:
/* Get index of device that matches this id */
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id)
if (client_data->hid_sensor_hubs[i]) {
ishtp_hid_wakeup(
client_data->hid_sensor_hubs[
i]);
break;
}
}
break;
case HOSTIF_PUBLISH_INPUT_REPORT:
report_type = HID_INPUT_REPORT;
for (i = 0; i < client_data->num_hid_devices; ++i)
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id)
if (client_data->hid_sensor_hubs[i])
hid_input_report(
client_data->hid_sensor_hubs[
i],
report_type, payload,
payload_len, 0);
break;
case HOSTIF_PUBLISH_INPUT_REPORT_LIST:
report_type = HID_INPUT_REPORT;
reports_list = (struct report_list *)payload;
reports = (char *)reports_list->reports;
for (j = 0; j < reports_list->num_of_reports; j++) {
recv_msg = (struct hostif_msg *)(reports +
sizeof(uint16_t));
report_len = *(uint16_t *)reports;
payload = reports + sizeof(uint16_t) +
sizeof(struct hostif_msg_hdr);
payload_len = report_len -
sizeof(struct hostif_msg_hdr);
for (i = 0; i < client_data->num_hid_devices;
++i)
if (recv_msg->hdr.device_id ==
client_data->hid_devices[i].dev_id &&
client_data->hid_sensor_hubs[i]) {
hid_input_report(
client_data->hid_sensor_hubs[
i],
report_type,
payload, payload_len,
0);
}
reports += sizeof(uint16_t) + report_len;
}
break;
default:
++client_data->bad_recv_cnt;
report_bad_packet(hid_ishtp_cl, recv_msg, cur_pos,
payload_len);
ish_hw_reset(ishtp_get_ishtp_device(hid_ishtp_cl));
break;
}
if (!cur_pos && cur_pos + payload_len +
sizeof(struct hostif_msg) < total_len)
++client_data->multi_packet_cnt;
cur_pos += payload_len + sizeof(struct hostif_msg);
payload += payload_len + sizeof(struct hostif_msg);
} while (cur_pos < total_len);
}
/**
* ish_cl_event_cb() - bus driver callback for incoming message/packet
* @device: Pointer to the ishtp client device for which this message
* is targeted
*
* Remove the packet from the list and process the message by calling
* process_recv
*/
static void ish_cl_event_cb(struct ishtp_cl_device *device)
{
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(device);
struct ishtp_cl_rb *rb_in_proc;
size_t r_length;
if (!hid_ishtp_cl)
return;
while ((rb_in_proc = ishtp_cl_rx_get_rb(hid_ishtp_cl)) != NULL) {
if (!rb_in_proc->buffer.data)
return;
r_length = rb_in_proc->buf_idx;
/* decide what to do with received data */
process_recv(hid_ishtp_cl, rb_in_proc->buffer.data, r_length);
ishtp_cl_io_rb_recycle(rb_in_proc);
}
}
/**
* hid_ishtp_set_feature() - send request to ISH FW to set a feature request
* @hid: hid device instance for this request
* @buf: feature buffer
* @len: Length of feature buffer
* @report_id: Report id for the feature set request
*
* This is called from hid core .request() callback. This function doesn't wait
* for response.
*/
void hid_ishtp_set_feature(struct hid_device *hid, char *buf, unsigned int len,
int report_id)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
struct ishtp_cl_data *client_data = hid_data->client_data;
struct hostif_msg *msg = (struct hostif_msg *)buf;
int rv;
int i;
hid_ishtp_trace(client_data, "%s hid %p\n", __func__, hid);
rv = ishtp_hid_link_ready_wait(client_data);
if (rv) {
hid_ishtp_trace(client_data, "%s hid %p link not ready\n",
__func__, hid);
return;
}
memset(msg, 0, sizeof(struct hostif_msg));
msg->hdr.command = HOSTIF_SET_FEATURE_REPORT;
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (hid == client_data->hid_sensor_hubs[i]) {
msg->hdr.device_id =
client_data->hid_devices[i].dev_id;
break;
}
}
if (i == client_data->num_hid_devices)
return;
rv = ishtp_cl_send(client_data->hid_ishtp_cl, buf, len);
if (rv)
hid_ishtp_trace(client_data, "%s hid %p send failed\n",
__func__, hid);
}
/**
* hid_ishtp_get_report() - request to get feature/input report
* @hid: hid device instance for this request
* @report_id: Report id for the get request
* @report_type: Report type for the this request
*
* This is called from hid core .request() callback. This function will send
* request to FW and return without waiting for response.
*/
void hid_ishtp_get_report(struct hid_device *hid, int report_id,
int report_type)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
struct ishtp_cl_data *client_data = hid_data->client_data;
struct hostif_msg_to_sensor msg = {};
int rv;
int i;
hid_ishtp_trace(client_data, "%s hid %p\n", __func__, hid);
rv = ishtp_hid_link_ready_wait(client_data);
if (rv) {
hid_ishtp_trace(client_data, "%s hid %p link not ready\n",
__func__, hid);
return;
}
msg.hdr.command = (report_type == HID_FEATURE_REPORT) ?
HOSTIF_GET_FEATURE_REPORT : HOSTIF_GET_INPUT_REPORT;
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (hid == client_data->hid_sensor_hubs[i]) {
msg.hdr.device_id =
client_data->hid_devices[i].dev_id;
break;
}
}
if (i == client_data->num_hid_devices)
return;
msg.report_id = report_id;
rv = ishtp_cl_send(client_data->hid_ishtp_cl, (uint8_t *)&msg,
sizeof(msg));
if (rv)
hid_ishtp_trace(client_data, "%s hid %p send failed\n",
__func__, hid);
}
/**
* ishtp_hid_link_ready_wait() - Wait for link ready
* @client_data: client data instance
*
* If the transport link started suspend process, then wait, till either
* resumed or timeout
*
* Return: 0 on success, non zero on error
*/
int ishtp_hid_link_ready_wait(struct ishtp_cl_data *client_data)
{
int rc;
if (client_data->suspended) {
hid_ishtp_trace(client_data, "wait for link ready\n");
rc = wait_event_interruptible_timeout(
client_data->ishtp_resume_wait,
!client_data->suspended,
5 * HZ);
if (rc == 0) {
hid_ishtp_trace(client_data, "link not ready\n");
return -EIO;
}
hid_ishtp_trace(client_data, "link ready\n");
}
return 0;
}
/**
* ishtp_enum_enum_devices() - Enumerate hid devices
* @hid_ishtp_cl: client instance
*
* Helper function to send request to firmware to enumerate HID devices
*
* Return: 0 on success, non zero on error
*/
static int ishtp_enum_enum_devices(struct ishtp_cl *hid_ishtp_cl)
{
struct hostif_msg msg;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
int retry_count;
int rv;
/* Send HOSTIF_DM_ENUM_DEVICES */
memset(&msg, 0, sizeof(struct hostif_msg));
msg.hdr.command = HOSTIF_DM_ENUM_DEVICES;
rv = ishtp_cl_send(hid_ishtp_cl, (unsigned char *)&msg,
sizeof(struct hostif_msg));
if (rv)
return rv;
retry_count = 0;
while (!client_data->enum_devices_done &&
retry_count < 10) {
wait_event_interruptible_timeout(client_data->init_wait,
client_data->enum_devices_done,
3 * HZ);
++retry_count;
if (!client_data->enum_devices_done)
/* Send HOSTIF_DM_ENUM_DEVICES */
rv = ishtp_cl_send(hid_ishtp_cl,
(unsigned char *) &msg,
sizeof(struct hostif_msg));
}
if (!client_data->enum_devices_done) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: timed out waiting for enum_devices\n");
return -ETIMEDOUT;
}
if (!client_data->hid_devices) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: failed to allocate HID dev structures\n");
return -ENOMEM;
}
client_data->num_hid_devices = client_data->hid_dev_count;
dev_info(ishtp_device(client_data->cl_device),
"[hid-ish]: enum_devices_done OK, num_hid_devices=%d\n",
client_data->num_hid_devices);
return 0;
}
/**
* ishtp_get_hid_descriptor() - Get hid descriptor
* @hid_ishtp_cl: client instance
* @index: Index into the hid_descr array
*
* Helper function to send request to firmware get HID descriptor of a device
*
* Return: 0 on success, non zero on error
*/
static int ishtp_get_hid_descriptor(struct ishtp_cl *hid_ishtp_cl, int index)
{
struct hostif_msg msg;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
int rv;
/* Get HID descriptor */
client_data->hid_descr_done = false;
memset(&msg, 0, sizeof(struct hostif_msg));
msg.hdr.command = HOSTIF_GET_HID_DESCRIPTOR;
msg.hdr.device_id = client_data->hid_devices[index].dev_id;
rv = ishtp_cl_send(hid_ishtp_cl, (unsigned char *) &msg,
sizeof(struct hostif_msg));
if (rv)
return rv;
if (!client_data->hid_descr_done) {
wait_event_interruptible_timeout(client_data->init_wait,
client_data->hid_descr_done,
3 * HZ);
if (!client_data->hid_descr_done) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: timed out for hid_descr_done\n");
return -EIO;
}
if (!client_data->hid_descr[index]) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: allocation HID desc fail\n");
return -ENOMEM;
}
}
return 0;
}
/**
* ishtp_get_report_descriptor() - Get report descriptor
* @hid_ishtp_cl: client instance
* @index: Index into the hid_descr array
*
* Helper function to send request to firmware get HID report descriptor of
* a device
*
* Return: 0 on success, non zero on error
*/
static int ishtp_get_report_descriptor(struct ishtp_cl *hid_ishtp_cl,
int index)
{
struct hostif_msg msg;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
int rv;
/* Get report descriptor */
client_data->report_descr_done = false;
memset(&msg, 0, sizeof(struct hostif_msg));
msg.hdr.command = HOSTIF_GET_REPORT_DESCRIPTOR;
msg.hdr.device_id = client_data->hid_devices[index].dev_id;
rv = ishtp_cl_send(hid_ishtp_cl, (unsigned char *) &msg,
sizeof(struct hostif_msg));
if (rv)
return rv;
if (!client_data->report_descr_done)
wait_event_interruptible_timeout(client_data->init_wait,
client_data->report_descr_done,
3 * HZ);
if (!client_data->report_descr_done) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: timed out for report descr\n");
return -EIO;
}
if (!client_data->report_descr[index]) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: failed to alloc report descr\n");
return -ENOMEM;
}
return 0;
}
/**
* hid_ishtp_cl_init() - Init function for ISHTP client
* @hid_ishtp_cl: ISHTP client instance
* @reset: true if called for init after reset
*
* This function complete the initializtion of the client. The summary of
* processing:
* - Send request to enumerate the hid clients
* Get the HID descriptor for each enumearated device
* Get report description of each device
* Register each device wik hid core by calling ishtp_hid_probe
*
* Return: 0 on success, non zero on error
*/
static int hid_ishtp_cl_init(struct ishtp_cl *hid_ishtp_cl, int reset)
{
struct ishtp_device *dev;
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
struct ishtp_fw_client *fw_client;
int i;
int rv;
dev_dbg(cl_data_to_dev(client_data), "%s\n", __func__);
hid_ishtp_trace(client_data, "%s reset flag: %d\n", __func__, reset);
rv = ishtp_cl_link(hid_ishtp_cl);
if (rv) {
dev_err(cl_data_to_dev(client_data),
"ishtp_cl_link failed\n");
return -ENOMEM;
}
client_data->init_done = 0;
dev = ishtp_get_ishtp_device(hid_ishtp_cl);
/* Connect to FW client */
ishtp_set_tx_ring_size(hid_ishtp_cl, HID_CL_TX_RING_SIZE);
ishtp_set_rx_ring_size(hid_ishtp_cl, HID_CL_RX_RING_SIZE);
fw_client = ishtp_fw_cl_get_client(dev, &hid_ishtp_id_table[0].guid);
if (!fw_client) {
dev_err(cl_data_to_dev(client_data),
"ish client uuid not found\n");
return -ENOENT;
}
ishtp_cl_set_fw_client_id(hid_ishtp_cl,
ishtp_get_fw_client_id(fw_client));
ishtp_set_connection_state(hid_ishtp_cl, ISHTP_CL_CONNECTING);
rv = ishtp_cl_connect(hid_ishtp_cl);
if (rv) {
dev_err(cl_data_to_dev(client_data),
"client connect fail\n");
goto err_cl_unlink;
}
hid_ishtp_trace(client_data, "%s client connected\n", __func__);
/* Register read callback */
ishtp_register_event_cb(client_data->cl_device, ish_cl_event_cb);
rv = ishtp_enum_enum_devices(hid_ishtp_cl);
if (rv)
goto err_cl_disconnect;
hid_ishtp_trace(client_data, "%s enumerated device count %d\n",
__func__, client_data->num_hid_devices);
for (i = 0; i < client_data->num_hid_devices; ++i) {
client_data->cur_hid_dev = i;
rv = ishtp_get_hid_descriptor(hid_ishtp_cl, i);
if (rv)
goto err_cl_disconnect;
rv = ishtp_get_report_descriptor(hid_ishtp_cl, i);
if (rv)
goto err_cl_disconnect;
if (!reset) {
rv = ishtp_hid_probe(i, client_data);
if (rv) {
dev_err(cl_data_to_dev(client_data),
"[hid-ish]: HID probe for #%u failed: %d\n",
i, rv);
goto err_cl_disconnect;
}
}
} /* for() on all hid devices */
client_data->init_done = 1;
client_data->suspended = false;
wake_up_interruptible(&client_data->ishtp_resume_wait);
hid_ishtp_trace(client_data, "%s successful init\n", __func__);
return 0;
err_cl_disconnect:
ishtp_set_connection_state(hid_ishtp_cl, ISHTP_CL_DISCONNECTING);
ishtp_cl_disconnect(hid_ishtp_cl);
err_cl_unlink:
ishtp_cl_unlink(hid_ishtp_cl);
return rv;
}
/**
* hid_ishtp_cl_deinit() - Deinit function for ISHTP client
* @hid_ishtp_cl: ISHTP client instance
*
* Unlink and free hid client
*/
static void hid_ishtp_cl_deinit(struct ishtp_cl *hid_ishtp_cl)
{
ishtp_cl_unlink(hid_ishtp_cl);
ishtp_cl_flush_queues(hid_ishtp_cl);
/* disband and free all Tx and Rx client-level rings */
ishtp_cl_free(hid_ishtp_cl);
}
static void hid_ishtp_cl_reset_handler(struct work_struct *work)
{
struct ishtp_cl_data *client_data;
struct ishtp_cl *hid_ishtp_cl;
struct ishtp_cl_device *cl_device;
int retry;
int rv;
client_data = container_of(work, struct ishtp_cl_data, work);
hid_ishtp_cl = client_data->hid_ishtp_cl;
cl_device = client_data->cl_device;
hid_ishtp_trace(client_data, "%s hid_ishtp_cl %p\n", __func__,
hid_ishtp_cl);
dev_dbg(ishtp_device(client_data->cl_device), "%s\n", __func__);
hid_ishtp_cl_deinit(hid_ishtp_cl);
hid_ishtp_cl = ishtp_cl_allocate(cl_device);
if (!hid_ishtp_cl)
return;
ishtp_set_drvdata(cl_device, hid_ishtp_cl);
ishtp_set_client_data(hid_ishtp_cl, client_data);
client_data->hid_ishtp_cl = hid_ishtp_cl;
client_data->num_hid_devices = 0;
for (retry = 0; retry < 3; ++retry) {
rv = hid_ishtp_cl_init(hid_ishtp_cl, 1);
if (!rv)
break;
dev_err(cl_data_to_dev(client_data), "Retry reset init\n");
}
if (rv) {
dev_err(cl_data_to_dev(client_data), "Reset Failed\n");
hid_ishtp_trace(client_data, "%s Failed hid_ishtp_cl %p\n",
__func__, hid_ishtp_cl);
}
}
static void hid_ishtp_cl_resume_handler(struct work_struct *work)
{
struct ishtp_cl_data *client_data = container_of(work, struct ishtp_cl_data, resume_work);
struct ishtp_cl *hid_ishtp_cl = client_data->hid_ishtp_cl;
if (ishtp_wait_resume(ishtp_get_ishtp_device(hid_ishtp_cl))) {
client_data->suspended = false;
wake_up_interruptible(&client_data->ishtp_resume_wait);
}
}
ishtp_print_log ishtp_hid_print_trace;
/**
* hid_ishtp_cl_probe() - ISHTP client driver probe
* @cl_device: ISHTP client device instance
*
* This function gets called on device create on ISHTP bus
*
* Return: 0 on success, non zero on error
*/
static int hid_ishtp_cl_probe(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl *hid_ishtp_cl;
struct ishtp_cl_data *client_data;
int rv;
if (!cl_device)
return -ENODEV;
client_data = devm_kzalloc(ishtp_device(cl_device),
sizeof(*client_data),
GFP_KERNEL);
if (!client_data)
return -ENOMEM;
hid_ishtp_cl = ishtp_cl_allocate(cl_device);
if (!hid_ishtp_cl)
return -ENOMEM;
ishtp_set_drvdata(cl_device, hid_ishtp_cl);
ishtp_set_client_data(hid_ishtp_cl, client_data);
client_data->hid_ishtp_cl = hid_ishtp_cl;
client_data->cl_device = cl_device;
init_waitqueue_head(&client_data->init_wait);
init_waitqueue_head(&client_data->ishtp_resume_wait);
INIT_WORK(&client_data->work, hid_ishtp_cl_reset_handler);
INIT_WORK(&client_data->resume_work, hid_ishtp_cl_resume_handler);
ishtp_hid_print_trace = ishtp_trace_callback(cl_device);
rv = hid_ishtp_cl_init(hid_ishtp_cl, 0);
if (rv) {
ishtp_cl_free(hid_ishtp_cl);
return rv;
}
ishtp_get_device(cl_device);
return 0;
}
/**
* hid_ishtp_cl_remove() - ISHTP client driver remove
* @cl_device: ISHTP client device instance
*
* This function gets called on device remove on ISHTP bus
*
* Return: 0
*/
static void hid_ishtp_cl_remove(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
hid_ishtp_trace(client_data, "%s hid_ishtp_cl %p\n", __func__,
hid_ishtp_cl);
dev_dbg(ishtp_device(cl_device), "%s\n", __func__);
ishtp_set_connection_state(hid_ishtp_cl, ISHTP_CL_DISCONNECTING);
ishtp_cl_disconnect(hid_ishtp_cl);
ishtp_put_device(cl_device);
ishtp_hid_remove(client_data);
hid_ishtp_cl_deinit(hid_ishtp_cl);
hid_ishtp_cl = NULL;
client_data->num_hid_devices = 0;
}
/**
* hid_ishtp_cl_reset() - ISHTP client driver reset
* @cl_device: ISHTP client device instance
*
* This function gets called on device reset on ISHTP bus
*
* Return: 0
*/
static int hid_ishtp_cl_reset(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
hid_ishtp_trace(client_data, "%s hid_ishtp_cl %p\n", __func__,
hid_ishtp_cl);
schedule_work(&client_data->work);
return 0;
}
/**
* hid_ishtp_cl_suspend() - ISHTP client driver suspend
* @device: device instance
*
* This function gets called on system suspend
*
* Return: 0
*/
static int hid_ishtp_cl_suspend(struct device *device)
{
struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
hid_ishtp_trace(client_data, "%s hid_ishtp_cl %p\n", __func__,
hid_ishtp_cl);
client_data->suspended = true;
return 0;
}
/**
* hid_ishtp_cl_resume() - ISHTP client driver resume
* @device: device instance
*
* This function gets called on system resume
*
* Return: 0
*/
static int hid_ishtp_cl_resume(struct device *device)
{
struct ishtp_cl_device *cl_device = ishtp_dev_to_cl_device(device);
struct ishtp_cl *hid_ishtp_cl = ishtp_get_drvdata(cl_device);
struct ishtp_cl_data *client_data = ishtp_get_client_data(hid_ishtp_cl);
hid_ishtp_trace(client_data, "%s hid_ishtp_cl %p\n", __func__,
hid_ishtp_cl);
schedule_work(&client_data->resume_work);
return 0;
}
static const struct dev_pm_ops hid_ishtp_pm_ops = {
.suspend = hid_ishtp_cl_suspend,
.resume = hid_ishtp_cl_resume,
};
static struct ishtp_cl_driver hid_ishtp_cl_driver = {
.name = "ish-hid",
.id = hid_ishtp_id_table,
.probe = hid_ishtp_cl_probe,
.remove = hid_ishtp_cl_remove,
.reset = hid_ishtp_cl_reset,
.driver.pm = &hid_ishtp_pm_ops,
};
static int __init ish_hid_init(void)
{
int rv;
/* Register ISHTP client device driver with ISHTP Bus */
rv = ishtp_cl_driver_register(&hid_ishtp_cl_driver, THIS_MODULE);
return rv;
}
static void __exit ish_hid_exit(void)
{
ishtp_cl_driver_unregister(&hid_ishtp_cl_driver);
}
late_initcall(ish_hid_init);
module_exit(ish_hid_exit);
MODULE_DESCRIPTION("ISH ISHTP HID client driver");
/* Primary author */
MODULE_AUTHOR("Daniel Drubin <[email protected]>");
/*
* Several modification for multi instance support
* suspend/resume and clean up
*/
MODULE_AUTHOR("Srinivas Pandruvada <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/intel-ish-hid/ishtp-hid-client.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* ISHTP-HID glue driver.
*
* Copyright (c) 2012-2016, Intel Corporation.
*/
#include <linux/hid.h>
#include <linux/intel-ish-client-if.h>
#include <uapi/linux/input.h>
#include "ishtp-hid.h"
/**
* ishtp_hid_parse() - hid-core .parse() callback
* @hid: hid device instance
*
* This function gets called during call to hid_add_device
*
* Return: 0 on success and non zero on error
*/
static int ishtp_hid_parse(struct hid_device *hid)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
struct ishtp_cl_data *client_data = hid_data->client_data;
int rv;
rv = hid_parse_report(hid, client_data->report_descr[hid_data->index],
client_data->report_descr_size[hid_data->index]);
if (rv)
return rv;
return 0;
}
/* Empty callbacks with success return code */
static int ishtp_hid_start(struct hid_device *hid)
{
return 0;
}
static void ishtp_hid_stop(struct hid_device *hid)
{
}
static int ishtp_hid_open(struct hid_device *hid)
{
return 0;
}
static void ishtp_hid_close(struct hid_device *hid)
{
}
static int ishtp_raw_request(struct hid_device *hid, unsigned char reportnum,
__u8 *buf, size_t len, unsigned char rtype,
int reqtype)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
char *ishtp_buf = NULL;
size_t ishtp_buf_len;
unsigned int header_size = sizeof(struct hostif_msg);
if (rtype == HID_OUTPUT_REPORT)
return -EINVAL;
hid_data->request_done = false;
switch (reqtype) {
case HID_REQ_GET_REPORT:
hid_data->raw_buf = buf;
hid_data->raw_buf_size = len;
hid_data->raw_get_req = true;
hid_ishtp_get_report(hid, reportnum, rtype);
break;
case HID_REQ_SET_REPORT:
/*
* Spare 7 bytes for 64b accesses through
* get/put_unaligned_le64()
*/
ishtp_buf_len = len + header_size;
ishtp_buf = kzalloc(ishtp_buf_len + 7, GFP_KERNEL);
if (!ishtp_buf)
return -ENOMEM;
memcpy(ishtp_buf + header_size, buf, len);
hid_ishtp_set_feature(hid, ishtp_buf, ishtp_buf_len, reportnum);
kfree(ishtp_buf);
break;
}
hid_hw_wait(hid);
return len;
}
/**
* ishtp_hid_request() - hid-core .request() callback
* @hid: hid device instance
* @rep: pointer to hid_report
* @reqtype: type of req. [GET|SET]_REPORT
*
* This function is used to set/get feaure/input report.
*/
static void ishtp_hid_request(struct hid_device *hid, struct hid_report *rep,
int reqtype)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
/* the specific report length, just HID part of it */
unsigned int len = ((rep->size - 1) >> 3) + 1 + (rep->id > 0);
char *buf;
unsigned int header_size = sizeof(struct hostif_msg);
len += header_size;
hid_data->request_done = false;
switch (reqtype) {
case HID_REQ_GET_REPORT:
hid_data->raw_get_req = false;
hid_ishtp_get_report(hid, rep->id, rep->type);
break;
case HID_REQ_SET_REPORT:
/*
* Spare 7 bytes for 64b accesses through
* get/put_unaligned_le64()
*/
buf = kzalloc(len + 7, GFP_KERNEL);
if (!buf)
return;
hid_output_report(rep, buf + header_size);
hid_ishtp_set_feature(hid, buf, len, rep->id);
kfree(buf);
break;
}
}
/**
* ishtp_wait_for_response() - hid-core .wait() callback
* @hid: hid device instance
*
* This function is used to wait after get feaure/input report.
*
* Return: 0 on success and non zero on error
*/
static int ishtp_wait_for_response(struct hid_device *hid)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
int rv;
hid_ishtp_trace(client_data, "%s hid %p\n", __func__, hid);
rv = ishtp_hid_link_ready_wait(hid_data->client_data);
if (rv)
return rv;
if (!hid_data->request_done)
wait_event_interruptible_timeout(hid_data->hid_wait,
hid_data->request_done, 3 * HZ);
if (!hid_data->request_done) {
hid_err(hid,
"timeout waiting for response from ISHTP device\n");
return -ETIMEDOUT;
}
hid_ishtp_trace(client_data, "%s hid %p done\n", __func__, hid);
hid_data->request_done = false;
return 0;
}
/**
* ishtp_hid_wakeup() - Wakeup caller
* @hid: hid device instance
*
* This function will wakeup caller waiting for Get/Set feature report
*/
void ishtp_hid_wakeup(struct hid_device *hid)
{
struct ishtp_hid_data *hid_data = hid->driver_data;
hid_data->request_done = true;
wake_up_interruptible(&hid_data->hid_wait);
}
static const struct hid_ll_driver ishtp_hid_ll_driver = {
.parse = ishtp_hid_parse,
.start = ishtp_hid_start,
.stop = ishtp_hid_stop,
.open = ishtp_hid_open,
.close = ishtp_hid_close,
.request = ishtp_hid_request,
.wait = ishtp_wait_for_response,
.raw_request = ishtp_raw_request
};
/**
* ishtp_hid_probe() - hid register ll driver
* @cur_hid_dev: Index of hid device calling to register
* @client_data: Client data pointer
*
* This function is used to allocate and add HID device.
*
* Return: 0 on success, non zero on error
*/
int ishtp_hid_probe(unsigned int cur_hid_dev,
struct ishtp_cl_data *client_data)
{
int rv;
struct hid_device *hid;
struct ishtp_hid_data *hid_data;
hid = hid_allocate_device();
if (IS_ERR(hid))
return PTR_ERR(hid);
hid_data = kzalloc(sizeof(*hid_data), GFP_KERNEL);
if (!hid_data) {
rv = -ENOMEM;
goto err_hid_data;
}
hid_data->index = cur_hid_dev;
hid_data->client_data = client_data;
init_waitqueue_head(&hid_data->hid_wait);
hid->driver_data = hid_data;
client_data->hid_sensor_hubs[cur_hid_dev] = hid;
hid->ll_driver = &ishtp_hid_ll_driver;
hid->bus = BUS_INTEL_ISHTP;
hid->dev.parent = ishtp_device(client_data->cl_device);
hid->version = le16_to_cpu(ISH_HID_VERSION);
hid->vendor = le16_to_cpu(client_data->hid_devices[cur_hid_dev].vid);
hid->product = le16_to_cpu(client_data->hid_devices[cur_hid_dev].pid);
snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X", "hid-ishtp",
hid->vendor, hid->product);
rv = hid_add_device(hid);
if (rv)
goto err_hid_device;
hid_ishtp_trace(client_data, "%s allocated hid %p\n", __func__, hid);
return 0;
err_hid_device:
kfree(hid_data);
err_hid_data:
hid_destroy_device(hid);
return rv;
}
/**
* ishtp_hid_remove() - Remove registered hid device
* @client_data: client data pointer
*
* This function is used to destroy allocatd HID device.
*/
void ishtp_hid_remove(struct ishtp_cl_data *client_data)
{
int i;
for (i = 0; i < client_data->num_hid_devices; ++i) {
if (client_data->hid_sensor_hubs[i]) {
kfree(client_data->hid_sensor_hubs[i]->driver_data);
hid_destroy_device(client_data->hid_sensor_hubs[i]);
client_data->hid_sensor_hubs[i] = NULL;
}
}
}
| linux-master | drivers/hid/intel-ish-hid/ishtp-hid.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Initialization protocol for ISHTP driver
*
* Copyright (c) 2003-2016, Intel Corporation.
*/
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include "ishtp-dev.h"
#include "hbm.h"
#include "client.h"
/**
* ishtp_dev_state_str() -Convert to string format
* @state: state to convert
*
* Convert state to string for prints
*
* Return: character pointer to converted string
*/
const char *ishtp_dev_state_str(int state)
{
switch (state) {
case ISHTP_DEV_INITIALIZING:
return "INITIALIZING";
case ISHTP_DEV_INIT_CLIENTS:
return "INIT_CLIENTS";
case ISHTP_DEV_ENABLED:
return "ENABLED";
case ISHTP_DEV_RESETTING:
return "RESETTING";
case ISHTP_DEV_DISABLED:
return "DISABLED";
case ISHTP_DEV_POWER_DOWN:
return "POWER_DOWN";
case ISHTP_DEV_POWER_UP:
return "POWER_UP";
default:
return "unknown";
}
}
/**
* ishtp_device_init() - ishtp device init
* @dev: ISHTP device instance
*
* After ISHTP device is alloacted, this function is used to initialize
* each field which includes spin lock, work struct and lists
*/
void ishtp_device_init(struct ishtp_device *dev)
{
dev->dev_state = ISHTP_DEV_INITIALIZING;
INIT_LIST_HEAD(&dev->cl_list);
INIT_LIST_HEAD(&dev->device_list);
dev->rd_msg_fifo_head = 0;
dev->rd_msg_fifo_tail = 0;
spin_lock_init(&dev->rd_msg_spinlock);
init_waitqueue_head(&dev->wait_hbm_recvd_msg);
spin_lock_init(&dev->read_list_spinlock);
spin_lock_init(&dev->device_lock);
spin_lock_init(&dev->device_list_lock);
spin_lock_init(&dev->cl_list_lock);
spin_lock_init(&dev->fw_clients_lock);
INIT_WORK(&dev->bh_hbm_work, bh_hbm_work_fn);
bitmap_zero(dev->host_clients_map, ISHTP_CLIENTS_MAX);
dev->open_handle_count = 0;
/*
* Reserving client ID 0 for ISHTP Bus Message communications
*/
bitmap_set(dev->host_clients_map, 0, 1);
INIT_LIST_HEAD(&dev->read_list.list);
}
EXPORT_SYMBOL(ishtp_device_init);
/**
* ishtp_start() - Start ISH processing
* @dev: ISHTP device instance
*
* Start ISHTP processing by sending query subscriber message
*
* Return: 0 on success else -ENODEV
*/
int ishtp_start(struct ishtp_device *dev)
{
if (ishtp_hbm_start_wait(dev)) {
dev_err(dev->devc, "HBM haven't started");
goto err;
}
/* suspend & resume notification - send QUERY_SUBSCRIBERS msg */
ishtp_query_subscribers(dev);
return 0;
err:
dev_err(dev->devc, "link layer initialization failed.\n");
dev->dev_state = ISHTP_DEV_DISABLED;
return -ENODEV;
}
EXPORT_SYMBOL(ishtp_start);
| linux-master | drivers/hid/intel-ish-hid/ishtp/init.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* ISHTP client logic
*
* Copyright (c) 2003-2016, Intel Corporation.
*/
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <asm/cacheflush.h>
#include "hbm.h"
#include "client.h"
int ishtp_cl_get_tx_free_buffer_size(struct ishtp_cl *cl)
{
unsigned long tx_free_flags;
int size;
spin_lock_irqsave(&cl->tx_free_list_spinlock, tx_free_flags);
size = cl->tx_ring_free_size * cl->device->fw_client->props.max_msg_length;
spin_unlock_irqrestore(&cl->tx_free_list_spinlock, tx_free_flags);
return size;
}
EXPORT_SYMBOL(ishtp_cl_get_tx_free_buffer_size);
int ishtp_cl_get_tx_free_rings(struct ishtp_cl *cl)
{
return cl->tx_ring_free_size;
}
EXPORT_SYMBOL(ishtp_cl_get_tx_free_rings);
/**
* ishtp_read_list_flush() - Flush read queue
* @cl: ishtp client instance
*
* Used to remove all entries from read queue for a client
*/
static void ishtp_read_list_flush(struct ishtp_cl *cl)
{
struct ishtp_cl_rb *rb;
struct ishtp_cl_rb *next;
unsigned long flags;
spin_lock_irqsave(&cl->dev->read_list_spinlock, flags);
list_for_each_entry_safe(rb, next, &cl->dev->read_list.list, list)
if (rb->cl && ishtp_cl_cmp_id(cl, rb->cl)) {
list_del(&rb->list);
ishtp_io_rb_free(rb);
}
spin_unlock_irqrestore(&cl->dev->read_list_spinlock, flags);
}
/**
* ishtp_cl_flush_queues() - Flush all queues for a client
* @cl: ishtp client instance
*
* Used to remove all queues for a client. This is called when a client device
* needs reset due to error, S3 resume or during module removal
*
* Return: 0 on success else -EINVAL if device is NULL
*/
int ishtp_cl_flush_queues(struct ishtp_cl *cl)
{
if (WARN_ON(!cl || !cl->dev))
return -EINVAL;
ishtp_read_list_flush(cl);
return 0;
}
EXPORT_SYMBOL(ishtp_cl_flush_queues);
/**
* ishtp_cl_init() - Initialize all fields of a client device
* @cl: ishtp client instance
* @dev: ishtp device
*
* Initializes a client device fields: Init spinlocks, init queues etc.
* This function is called during new client creation
*/
static void ishtp_cl_init(struct ishtp_cl *cl, struct ishtp_device *dev)
{
memset(cl, 0, sizeof(struct ishtp_cl));
init_waitqueue_head(&cl->wait_ctrl_res);
spin_lock_init(&cl->free_list_spinlock);
spin_lock_init(&cl->in_process_spinlock);
spin_lock_init(&cl->tx_list_spinlock);
spin_lock_init(&cl->tx_free_list_spinlock);
spin_lock_init(&cl->fc_spinlock);
INIT_LIST_HEAD(&cl->link);
cl->dev = dev;
INIT_LIST_HEAD(&cl->free_rb_list.list);
INIT_LIST_HEAD(&cl->tx_list.list);
INIT_LIST_HEAD(&cl->tx_free_list.list);
INIT_LIST_HEAD(&cl->in_process_list.list);
cl->rx_ring_size = CL_DEF_RX_RING_SIZE;
cl->tx_ring_size = CL_DEF_TX_RING_SIZE;
cl->tx_ring_free_size = cl->tx_ring_size;
/* dma */
cl->last_tx_path = CL_TX_PATH_IPC;
cl->last_dma_acked = 1;
cl->last_dma_addr = NULL;
cl->last_ipc_acked = 1;
}
/**
* ishtp_cl_allocate() - allocates client structure and sets it up.
* @cl_device: ishtp client device
*
* Allocate memory for new client device and call to initialize each field.
*
* Return: The allocated client instance or NULL on failure
*/
struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device)
{
struct ishtp_cl *cl;
cl = kmalloc(sizeof(struct ishtp_cl), GFP_KERNEL);
if (!cl)
return NULL;
ishtp_cl_init(cl, cl_device->ishtp_dev);
return cl;
}
EXPORT_SYMBOL(ishtp_cl_allocate);
/**
* ishtp_cl_free() - Frees a client device
* @cl: client device instance
*
* Frees a client device
*/
void ishtp_cl_free(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
unsigned long flags;
if (!cl)
return;
dev = cl->dev;
if (!dev)
return;
spin_lock_irqsave(&dev->cl_list_lock, flags);
ishtp_cl_free_rx_ring(cl);
ishtp_cl_free_tx_ring(cl);
kfree(cl);
spin_unlock_irqrestore(&dev->cl_list_lock, flags);
}
EXPORT_SYMBOL(ishtp_cl_free);
/**
* ishtp_cl_link() - Reserve a host id and link the client instance
* @cl: client device instance
*
* This allocates a single bit in the hostmap. This function will make sure
* that not many client sessions are opened at the same time. Once allocated
* the client device instance is added to the ishtp device in the current
* client list
*
* Return: 0 or error code on failure
*/
int ishtp_cl_link(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
unsigned long flags, flags_cl;
int id, ret = 0;
if (WARN_ON(!cl || !cl->dev))
return -EINVAL;
dev = cl->dev;
spin_lock_irqsave(&dev->device_lock, flags);
if (dev->open_handle_count >= ISHTP_MAX_OPEN_HANDLE_COUNT) {
ret = -EMFILE;
goto unlock_dev;
}
id = find_first_zero_bit(dev->host_clients_map, ISHTP_CLIENTS_MAX);
if (id >= ISHTP_CLIENTS_MAX) {
spin_unlock_irqrestore(&dev->device_lock, flags);
dev_err(&cl->device->dev, "id exceeded %d", ISHTP_CLIENTS_MAX);
return -ENOENT;
}
dev->open_handle_count++;
cl->host_client_id = id;
spin_lock_irqsave(&dev->cl_list_lock, flags_cl);
if (dev->dev_state != ISHTP_DEV_ENABLED) {
ret = -ENODEV;
goto unlock_cl;
}
list_add_tail(&cl->link, &dev->cl_list);
set_bit(id, dev->host_clients_map);
cl->state = ISHTP_CL_INITIALIZING;
unlock_cl:
spin_unlock_irqrestore(&dev->cl_list_lock, flags_cl);
unlock_dev:
spin_unlock_irqrestore(&dev->device_lock, flags);
return ret;
}
EXPORT_SYMBOL(ishtp_cl_link);
/**
* ishtp_cl_unlink() - remove fw_cl from the client device list
* @cl: client device instance
*
* Remove a previously linked device to a ishtp device
*/
void ishtp_cl_unlink(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
struct ishtp_cl *pos;
unsigned long flags;
/* don't shout on error exit path */
if (!cl || !cl->dev)
return;
dev = cl->dev;
spin_lock_irqsave(&dev->device_lock, flags);
if (dev->open_handle_count > 0) {
clear_bit(cl->host_client_id, dev->host_clients_map);
dev->open_handle_count--;
}
spin_unlock_irqrestore(&dev->device_lock, flags);
/*
* This checks that 'cl' is actually linked into device's structure,
* before attempting 'list_del'
*/
spin_lock_irqsave(&dev->cl_list_lock, flags);
list_for_each_entry(pos, &dev->cl_list, link)
if (cl->host_client_id == pos->host_client_id) {
list_del_init(&pos->link);
break;
}
spin_unlock_irqrestore(&dev->cl_list_lock, flags);
}
EXPORT_SYMBOL(ishtp_cl_unlink);
/**
* ishtp_cl_disconnect() - Send disconnect request to firmware
* @cl: client device instance
*
* Send a disconnect request for a client to firmware.
*
* Return: 0 if successful disconnect response from the firmware or error
* code on failure
*/
int ishtp_cl_disconnect(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
dev->print_log(dev, "%s() state %d\n", __func__, cl->state);
if (cl->state != ISHTP_CL_DISCONNECTING) {
dev->print_log(dev, "%s() Disconnect in progress\n", __func__);
return 0;
}
if (ishtp_hbm_cl_disconnect_req(dev, cl)) {
dev->print_log(dev, "%s() Failed to disconnect\n", __func__);
dev_err(&cl->device->dev, "failed to disconnect.\n");
return -ENODEV;
}
wait_event_interruptible_timeout(cl->wait_ctrl_res,
(dev->dev_state != ISHTP_DEV_ENABLED ||
cl->state == ISHTP_CL_DISCONNECTED),
ishtp_secs_to_jiffies(ISHTP_CL_CONNECT_TIMEOUT));
/*
* If FW reset arrived, this will happen. Don't check cl->,
* as 'cl' may be freed already
*/
if (dev->dev_state != ISHTP_DEV_ENABLED) {
dev->print_log(dev, "%s() dev_state != ISHTP_DEV_ENABLED\n",
__func__);
return -ENODEV;
}
if (cl->state == ISHTP_CL_DISCONNECTED) {
dev->print_log(dev, "%s() successful\n", __func__);
return 0;
}
return -ENODEV;
}
EXPORT_SYMBOL(ishtp_cl_disconnect);
/**
* ishtp_cl_is_other_connecting() - Check other client is connecting
* @cl: client device instance
*
* Checks if other client with the same fw client id is connecting
*
* Return: true if other client is connected else false
*/
static bool ishtp_cl_is_other_connecting(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
struct ishtp_cl *pos;
unsigned long flags;
if (WARN_ON(!cl || !cl->dev))
return false;
dev = cl->dev;
spin_lock_irqsave(&dev->cl_list_lock, flags);
list_for_each_entry(pos, &dev->cl_list, link) {
if ((pos->state == ISHTP_CL_CONNECTING) && (pos != cl) &&
cl->fw_client_id == pos->fw_client_id) {
spin_unlock_irqrestore(&dev->cl_list_lock, flags);
return true;
}
}
spin_unlock_irqrestore(&dev->cl_list_lock, flags);
return false;
}
/**
* ishtp_cl_connect() - Send connect request to firmware
* @cl: client device instance
*
* Send a connect request for a client to firmware. If successful it will
* RX and TX ring buffers
*
* Return: 0 if successful connect response from the firmware and able
* to bind and allocate ring buffers or error code on failure
*/
int ishtp_cl_connect(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
int rets;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
dev->print_log(dev, "%s() current_state = %d\n", __func__, cl->state);
if (ishtp_cl_is_other_connecting(cl)) {
dev->print_log(dev, "%s() Busy\n", __func__);
return -EBUSY;
}
if (ishtp_hbm_cl_connect_req(dev, cl)) {
dev->print_log(dev, "%s() HBM connect req fail\n", __func__);
return -ENODEV;
}
rets = wait_event_interruptible_timeout(cl->wait_ctrl_res,
(dev->dev_state == ISHTP_DEV_ENABLED &&
(cl->state == ISHTP_CL_CONNECTED ||
cl->state == ISHTP_CL_DISCONNECTED)),
ishtp_secs_to_jiffies(
ISHTP_CL_CONNECT_TIMEOUT));
/*
* If FW reset arrived, this will happen. Don't check cl->,
* as 'cl' may be freed already
*/
if (dev->dev_state != ISHTP_DEV_ENABLED) {
dev->print_log(dev, "%s() dev_state != ISHTP_DEV_ENABLED\n",
__func__);
return -EFAULT;
}
if (cl->state != ISHTP_CL_CONNECTED) {
dev->print_log(dev, "%s() state != ISHTP_CL_CONNECTED\n",
__func__);
return -EFAULT;
}
rets = cl->status;
if (rets) {
dev->print_log(dev, "%s() Invalid status\n", __func__);
return rets;
}
rets = ishtp_cl_device_bind(cl);
if (rets) {
dev->print_log(dev, "%s() Bind error\n", __func__);
ishtp_cl_disconnect(cl);
return rets;
}
rets = ishtp_cl_alloc_rx_ring(cl);
if (rets) {
dev->print_log(dev, "%s() Alloc RX ring failed\n", __func__);
/* if failed allocation, disconnect */
ishtp_cl_disconnect(cl);
return rets;
}
rets = ishtp_cl_alloc_tx_ring(cl);
if (rets) {
dev->print_log(dev, "%s() Alloc TX ring failed\n", __func__);
/* if failed allocation, disconnect */
ishtp_cl_free_rx_ring(cl);
ishtp_cl_disconnect(cl);
return rets;
}
/* Upon successful connection and allocation, emit flow-control */
rets = ishtp_cl_read_start(cl);
dev->print_log(dev, "%s() successful\n", __func__);
return rets;
}
EXPORT_SYMBOL(ishtp_cl_connect);
/**
* ishtp_cl_read_start() - Prepare to read client message
* @cl: client device instance
*
* Get a free buffer from pool of free read buffers and add to read buffer
* pool to add contents. Send a flow control request to firmware to be able
* send next message.
*
* Return: 0 if successful or error code on failure
*/
int ishtp_cl_read_start(struct ishtp_cl *cl)
{
struct ishtp_device *dev;
struct ishtp_cl_rb *rb;
int rets;
int i;
unsigned long flags;
unsigned long dev_flags;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
if (cl->state != ISHTP_CL_CONNECTED)
return -ENODEV;
if (dev->dev_state != ISHTP_DEV_ENABLED)
return -ENODEV;
i = ishtp_fw_cl_by_id(dev, cl->fw_client_id);
if (i < 0) {
dev_err(&cl->device->dev, "no such fw client %d\n",
cl->fw_client_id);
return -ENODEV;
}
/* The current rb is the head of the free rb list */
spin_lock_irqsave(&cl->free_list_spinlock, flags);
if (list_empty(&cl->free_rb_list.list)) {
dev_warn(&cl->device->dev,
"[ishtp-ish] Rx buffers pool is empty\n");
rets = -ENOMEM;
rb = NULL;
spin_unlock_irqrestore(&cl->free_list_spinlock, flags);
goto out;
}
rb = list_entry(cl->free_rb_list.list.next, struct ishtp_cl_rb, list);
list_del_init(&rb->list);
spin_unlock_irqrestore(&cl->free_list_spinlock, flags);
rb->cl = cl;
rb->buf_idx = 0;
INIT_LIST_HEAD(&rb->list);
rets = 0;
/*
* This must be BEFORE sending flow control -
* response in ISR may come too fast...
*/
spin_lock_irqsave(&dev->read_list_spinlock, dev_flags);
list_add_tail(&rb->list, &dev->read_list.list);
spin_unlock_irqrestore(&dev->read_list_spinlock, dev_flags);
if (ishtp_hbm_cl_flow_control_req(dev, cl)) {
rets = -ENODEV;
goto out;
}
out:
/* if ishtp_hbm_cl_flow_control_req failed, return rb to free list */
if (rets && rb) {
spin_lock_irqsave(&dev->read_list_spinlock, dev_flags);
list_del(&rb->list);
spin_unlock_irqrestore(&dev->read_list_spinlock, dev_flags);
spin_lock_irqsave(&cl->free_list_spinlock, flags);
list_add_tail(&rb->list, &cl->free_rb_list.list);
spin_unlock_irqrestore(&cl->free_list_spinlock, flags);
}
return rets;
}
/**
* ishtp_cl_send() - Send a message to firmware
* @cl: client device instance
* @buf: message buffer
* @length: length of message
*
* If the client is correct state to send message, this function gets a buffer
* from tx ring buffers, copy the message data and call to send the message
* using ishtp_cl_send_msg()
*
* Return: 0 if successful or error code on failure
*/
int ishtp_cl_send(struct ishtp_cl *cl, uint8_t *buf, size_t length)
{
struct ishtp_device *dev;
int id;
struct ishtp_cl_tx_ring *cl_msg;
int have_msg_to_send = 0;
unsigned long tx_flags, tx_free_flags;
if (WARN_ON(!cl || !cl->dev))
return -ENODEV;
dev = cl->dev;
if (cl->state != ISHTP_CL_CONNECTED) {
++cl->err_send_msg;
return -EPIPE;
}
if (dev->dev_state != ISHTP_DEV_ENABLED) {
++cl->err_send_msg;
return -ENODEV;
}
/* Check if we have fw client device */
id = ishtp_fw_cl_by_id(dev, cl->fw_client_id);
if (id < 0) {
++cl->err_send_msg;
return -ENOENT;
}
if (length > dev->fw_clients[id].props.max_msg_length) {
++cl->err_send_msg;
return -EMSGSIZE;
}
/* No free bufs */
spin_lock_irqsave(&cl->tx_free_list_spinlock, tx_free_flags);
if (list_empty(&cl->tx_free_list.list)) {
spin_unlock_irqrestore(&cl->tx_free_list_spinlock,
tx_free_flags);
++cl->err_send_msg;
return -ENOMEM;
}
cl_msg = list_first_entry(&cl->tx_free_list.list,
struct ishtp_cl_tx_ring, list);
if (!cl_msg->send_buf.data) {
spin_unlock_irqrestore(&cl->tx_free_list_spinlock,
tx_free_flags);
return -EIO;
/* Should not happen, as free list is pre-allocated */
}
/*
* This is safe, as 'length' is already checked for not exceeding
* max ISHTP message size per client
*/
list_del_init(&cl_msg->list);
--cl->tx_ring_free_size;
spin_unlock_irqrestore(&cl->tx_free_list_spinlock, tx_free_flags);
memcpy(cl_msg->send_buf.data, buf, length);
cl_msg->send_buf.size = length;
spin_lock_irqsave(&cl->tx_list_spinlock, tx_flags);
have_msg_to_send = !list_empty(&cl->tx_list.list);
list_add_tail(&cl_msg->list, &cl->tx_list.list);
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
if (!have_msg_to_send && cl->ishtp_flow_ctrl_creds > 0)
ishtp_cl_send_msg(dev, cl);
return 0;
}
EXPORT_SYMBOL(ishtp_cl_send);
/**
* ishtp_cl_read_complete() - read complete
* @rb: Pointer to client request block
*
* If the message is completely received call ishtp_cl_bus_rx_event()
* to process message
*/
static void ishtp_cl_read_complete(struct ishtp_cl_rb *rb)
{
unsigned long flags;
int schedule_work_flag = 0;
struct ishtp_cl *cl = rb->cl;
spin_lock_irqsave(&cl->in_process_spinlock, flags);
/*
* if in-process list is empty, then need to schedule
* the processing thread
*/
schedule_work_flag = list_empty(&cl->in_process_list.list);
list_add_tail(&rb->list, &cl->in_process_list.list);
spin_unlock_irqrestore(&cl->in_process_spinlock, flags);
if (schedule_work_flag)
ishtp_cl_bus_rx_event(cl->device);
}
/**
* ipc_tx_send() - IPC tx send function
* @prm: Pointer to client device instance
*
* Send message over IPC. Message will be split into fragments
* if message size is bigger than IPC FIFO size, and all
* fragments will be sent one by one.
*/
static void ipc_tx_send(void *prm)
{
struct ishtp_cl *cl = prm;
struct ishtp_cl_tx_ring *cl_msg;
size_t rem;
struct ishtp_device *dev = (cl ? cl->dev : NULL);
struct ishtp_msg_hdr ishtp_hdr;
unsigned long tx_flags, tx_free_flags;
unsigned char *pmsg;
if (!dev)
return;
/*
* Other conditions if some critical error has
* occurred before this callback is called
*/
if (dev->dev_state != ISHTP_DEV_ENABLED)
return;
if (cl->state != ISHTP_CL_CONNECTED)
return;
spin_lock_irqsave(&cl->tx_list_spinlock, tx_flags);
if (list_empty(&cl->tx_list.list)) {
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
return;
}
if (cl->ishtp_flow_ctrl_creds != 1 && !cl->sending) {
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
return;
}
if (!cl->sending) {
--cl->ishtp_flow_ctrl_creds;
cl->last_ipc_acked = 0;
cl->last_tx_path = CL_TX_PATH_IPC;
cl->sending = 1;
}
cl_msg = list_entry(cl->tx_list.list.next, struct ishtp_cl_tx_ring,
list);
rem = cl_msg->send_buf.size - cl->tx_offs;
while (rem > 0) {
ishtp_hdr.host_addr = cl->host_client_id;
ishtp_hdr.fw_addr = cl->fw_client_id;
ishtp_hdr.reserved = 0;
pmsg = cl_msg->send_buf.data + cl->tx_offs;
if (rem <= dev->mtu) {
/* Last fragment or only one packet */
ishtp_hdr.length = rem;
ishtp_hdr.msg_complete = 1;
/* Submit to IPC queue with no callback */
ishtp_write_message(dev, &ishtp_hdr, pmsg);
cl->tx_offs = 0;
cl->sending = 0;
break;
} else {
/* Send ipc fragment */
ishtp_hdr.length = dev->mtu;
ishtp_hdr.msg_complete = 0;
/* All fregments submitted to IPC queue with no callback */
ishtp_write_message(dev, &ishtp_hdr, pmsg);
cl->tx_offs += dev->mtu;
rem = cl_msg->send_buf.size - cl->tx_offs;
}
}
list_del_init(&cl_msg->list);
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
spin_lock_irqsave(&cl->tx_free_list_spinlock, tx_free_flags);
list_add_tail(&cl_msg->list, &cl->tx_free_list.list);
++cl->tx_ring_free_size;
spin_unlock_irqrestore(&cl->tx_free_list_spinlock,
tx_free_flags);
}
/**
* ishtp_cl_send_msg_ipc() -Send message using IPC
* @dev: ISHTP device instance
* @cl: Pointer to client device instance
*
* Send message over IPC not using DMA
*/
static void ishtp_cl_send_msg_ipc(struct ishtp_device *dev,
struct ishtp_cl *cl)
{
/* If last DMA message wasn't acked yet, leave this one in Tx queue */
if (cl->last_tx_path == CL_TX_PATH_DMA && cl->last_dma_acked == 0)
return;
cl->tx_offs = 0;
ipc_tx_send(cl);
++cl->send_msg_cnt_ipc;
}
/**
* ishtp_cl_send_msg_dma() -Send message using DMA
* @dev: ISHTP device instance
* @cl: Pointer to client device instance
*
* Send message using DMA
*/
static void ishtp_cl_send_msg_dma(struct ishtp_device *dev,
struct ishtp_cl *cl)
{
struct ishtp_msg_hdr hdr;
struct dma_xfer_hbm dma_xfer;
unsigned char *msg_addr;
int off;
struct ishtp_cl_tx_ring *cl_msg;
unsigned long tx_flags, tx_free_flags;
/* If last IPC message wasn't acked yet, leave this one in Tx queue */
if (cl->last_tx_path == CL_TX_PATH_IPC && cl->last_ipc_acked == 0)
return;
spin_lock_irqsave(&cl->tx_list_spinlock, tx_flags);
if (list_empty(&cl->tx_list.list)) {
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
return;
}
cl_msg = list_entry(cl->tx_list.list.next, struct ishtp_cl_tx_ring,
list);
msg_addr = ishtp_cl_get_dma_send_buf(dev, cl_msg->send_buf.size);
if (!msg_addr) {
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
if (dev->transfer_path == CL_TX_PATH_DEFAULT)
ishtp_cl_send_msg_ipc(dev, cl);
return;
}
list_del_init(&cl_msg->list); /* Must be before write */
spin_unlock_irqrestore(&cl->tx_list_spinlock, tx_flags);
--cl->ishtp_flow_ctrl_creds;
cl->last_dma_acked = 0;
cl->last_dma_addr = msg_addr;
cl->last_tx_path = CL_TX_PATH_DMA;
/* write msg to dma buf */
memcpy(msg_addr, cl_msg->send_buf.data, cl_msg->send_buf.size);
/*
* if current fw don't support cache snooping, driver have to
* flush the cache manually.
*/
if (dev->ops->dma_no_cache_snooping &&
dev->ops->dma_no_cache_snooping(dev))
clflush_cache_range(msg_addr, cl_msg->send_buf.size);
/* send dma_xfer hbm msg */
off = msg_addr - (unsigned char *)dev->ishtp_host_dma_tx_buf;
ishtp_hbm_hdr(&hdr, sizeof(struct dma_xfer_hbm));
dma_xfer.hbm = DMA_XFER;
dma_xfer.fw_client_id = cl->fw_client_id;
dma_xfer.host_client_id = cl->host_client_id;
dma_xfer.reserved = 0;
dma_xfer.msg_addr = dev->ishtp_host_dma_tx_buf_phys + off;
dma_xfer.msg_length = cl_msg->send_buf.size;
dma_xfer.reserved2 = 0;
ishtp_write_message(dev, &hdr, (unsigned char *)&dma_xfer);
spin_lock_irqsave(&cl->tx_free_list_spinlock, tx_free_flags);
list_add_tail(&cl_msg->list, &cl->tx_free_list.list);
++cl->tx_ring_free_size;
spin_unlock_irqrestore(&cl->tx_free_list_spinlock, tx_free_flags);
++cl->send_msg_cnt_dma;
}
/**
* ishtp_cl_send_msg() -Send message using DMA or IPC
* @dev: ISHTP device instance
* @cl: Pointer to client device instance
*
* Send message using DMA or IPC based on transfer_path
*/
void ishtp_cl_send_msg(struct ishtp_device *dev, struct ishtp_cl *cl)
{
if (dev->transfer_path == CL_TX_PATH_DMA)
ishtp_cl_send_msg_dma(dev, cl);
else
ishtp_cl_send_msg_ipc(dev, cl);
}
/**
* recv_ishtp_cl_msg() -Receive client message
* @dev: ISHTP device instance
* @ishtp_hdr: Pointer to message header
*
* Receive and dispatch ISHTP client messages. This function executes in ISR
* or work queue context
*/
void recv_ishtp_cl_msg(struct ishtp_device *dev,
struct ishtp_msg_hdr *ishtp_hdr)
{
struct ishtp_cl *cl;
struct ishtp_cl_rb *rb;
struct ishtp_cl_rb *new_rb;
unsigned char *buffer = NULL;
struct ishtp_cl_rb *complete_rb = NULL;
unsigned long flags;
if (ishtp_hdr->reserved) {
dev_err(dev->devc, "corrupted message header.\n");
goto eoi;
}
if (ishtp_hdr->length > IPC_PAYLOAD_SIZE) {
dev_err(dev->devc,
"ISHTP message length in hdr exceeds IPC MTU\n");
goto eoi;
}
spin_lock_irqsave(&dev->read_list_spinlock, flags);
list_for_each_entry(rb, &dev->read_list.list, list) {
cl = rb->cl;
if (!cl || !(cl->host_client_id == ishtp_hdr->host_addr &&
cl->fw_client_id == ishtp_hdr->fw_addr) ||
!(cl->state == ISHTP_CL_CONNECTED))
continue;
/* If no Rx buffer is allocated, disband the rb */
if (rb->buffer.size == 0 || rb->buffer.data == NULL) {
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
dev_err(&cl->device->dev,
"Rx buffer is not allocated.\n");
list_del(&rb->list);
ishtp_io_rb_free(rb);
cl->status = -ENOMEM;
goto eoi;
}
/*
* If message buffer overflown (exceeds max. client msg
* size, drop message and return to free buffer.
* Do we need to disconnect such a client? (We don't send
* back FC, so communication will be stuck anyway)
*/
if (rb->buffer.size < ishtp_hdr->length + rb->buf_idx) {
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
dev_err(&cl->device->dev,
"message overflow. size %d len %d idx %ld\n",
rb->buffer.size, ishtp_hdr->length,
rb->buf_idx);
list_del(&rb->list);
ishtp_cl_io_rb_recycle(rb);
cl->status = -EIO;
goto eoi;
}
buffer = rb->buffer.data + rb->buf_idx;
dev->ops->ishtp_read(dev, buffer, ishtp_hdr->length);
rb->buf_idx += ishtp_hdr->length;
if (ishtp_hdr->msg_complete) {
/* Last fragment in message - it's complete */
cl->status = 0;
list_del(&rb->list);
complete_rb = rb;
--cl->out_flow_ctrl_creds;
/*
* the whole msg arrived, send a new FC, and add a new
* rb buffer for the next coming msg
*/
spin_lock(&cl->free_list_spinlock);
if (!list_empty(&cl->free_rb_list.list)) {
new_rb = list_entry(cl->free_rb_list.list.next,
struct ishtp_cl_rb, list);
list_del_init(&new_rb->list);
spin_unlock(&cl->free_list_spinlock);
new_rb->cl = cl;
new_rb->buf_idx = 0;
INIT_LIST_HEAD(&new_rb->list);
list_add_tail(&new_rb->list,
&dev->read_list.list);
ishtp_hbm_cl_flow_control_req(dev, cl);
} else {
spin_unlock(&cl->free_list_spinlock);
}
}
/* One more fragment in message (even if this was last) */
++cl->recv_msg_num_frags;
/*
* We can safely break here (and in BH too),
* a single input message can go only to a single request!
*/
break;
}
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
/* If it's nobody's message, just read and discard it */
if (!buffer) {
uint8_t rd_msg_buf[ISHTP_RD_MSG_BUF_SIZE];
dev_err(dev->devc, "Dropped Rx msg - no request\n");
dev->ops->ishtp_read(dev, rd_msg_buf, ishtp_hdr->length);
goto eoi;
}
if (complete_rb) {
cl = complete_rb->cl;
cl->ts_rx = ktime_get();
++cl->recv_msg_cnt_ipc;
ishtp_cl_read_complete(complete_rb);
}
eoi:
return;
}
/**
* recv_ishtp_cl_msg_dma() -Receive client message
* @dev: ISHTP device instance
* @msg: message pointer
* @hbm: hbm buffer
*
* Receive and dispatch ISHTP client messages using DMA. This function executes
* in ISR or work queue context
*/
void recv_ishtp_cl_msg_dma(struct ishtp_device *dev, void *msg,
struct dma_xfer_hbm *hbm)
{
struct ishtp_cl *cl;
struct ishtp_cl_rb *rb;
struct ishtp_cl_rb *new_rb;
unsigned char *buffer = NULL;
struct ishtp_cl_rb *complete_rb = NULL;
unsigned long flags;
spin_lock_irqsave(&dev->read_list_spinlock, flags);
list_for_each_entry(rb, &dev->read_list.list, list) {
cl = rb->cl;
if (!cl || !(cl->host_client_id == hbm->host_client_id &&
cl->fw_client_id == hbm->fw_client_id) ||
!(cl->state == ISHTP_CL_CONNECTED))
continue;
/*
* If no Rx buffer is allocated, disband the rb
*/
if (rb->buffer.size == 0 || rb->buffer.data == NULL) {
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
dev_err(&cl->device->dev,
"response buffer is not allocated.\n");
list_del(&rb->list);
ishtp_io_rb_free(rb);
cl->status = -ENOMEM;
goto eoi;
}
/*
* If message buffer overflown (exceeds max. client msg
* size, drop message and return to free buffer.
* Do we need to disconnect such a client? (We don't send
* back FC, so communication will be stuck anyway)
*/
if (rb->buffer.size < hbm->msg_length) {
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
dev_err(&cl->device->dev,
"message overflow. size %d len %d idx %ld\n",
rb->buffer.size, hbm->msg_length, rb->buf_idx);
list_del(&rb->list);
ishtp_cl_io_rb_recycle(rb);
cl->status = -EIO;
goto eoi;
}
buffer = rb->buffer.data;
/*
* if current fw don't support cache snooping, driver have to
* flush the cache manually.
*/
if (dev->ops->dma_no_cache_snooping &&
dev->ops->dma_no_cache_snooping(dev))
clflush_cache_range(msg, hbm->msg_length);
memcpy(buffer, msg, hbm->msg_length);
rb->buf_idx = hbm->msg_length;
/* Last fragment in message - it's complete */
cl->status = 0;
list_del(&rb->list);
complete_rb = rb;
--cl->out_flow_ctrl_creds;
/*
* the whole msg arrived, send a new FC, and add a new
* rb buffer for the next coming msg
*/
spin_lock(&cl->free_list_spinlock);
if (!list_empty(&cl->free_rb_list.list)) {
new_rb = list_entry(cl->free_rb_list.list.next,
struct ishtp_cl_rb, list);
list_del_init(&new_rb->list);
spin_unlock(&cl->free_list_spinlock);
new_rb->cl = cl;
new_rb->buf_idx = 0;
INIT_LIST_HEAD(&new_rb->list);
list_add_tail(&new_rb->list,
&dev->read_list.list);
ishtp_hbm_cl_flow_control_req(dev, cl);
} else {
spin_unlock(&cl->free_list_spinlock);
}
/* One more fragment in message (this is always last) */
++cl->recv_msg_num_frags;
/*
* We can safely break here (and in BH too),
* a single input message can go only to a single request!
*/
break;
}
spin_unlock_irqrestore(&dev->read_list_spinlock, flags);
/* If it's nobody's message, just read and discard it */
if (!buffer) {
dev_err(dev->devc, "Dropped Rx (DMA) msg - no request\n");
goto eoi;
}
if (complete_rb) {
cl = complete_rb->cl;
cl->ts_rx = ktime_get();
++cl->recv_msg_cnt_dma;
ishtp_cl_read_complete(complete_rb);
}
eoi:
return;
}
void *ishtp_get_client_data(struct ishtp_cl *cl)
{
return cl->client_data;
}
EXPORT_SYMBOL(ishtp_get_client_data);
void ishtp_set_client_data(struct ishtp_cl *cl, void *data)
{
cl->client_data = data;
}
EXPORT_SYMBOL(ishtp_set_client_data);
struct ishtp_device *ishtp_get_ishtp_device(struct ishtp_cl *cl)
{
return cl->dev;
}
EXPORT_SYMBOL(ishtp_get_ishtp_device);
void ishtp_set_tx_ring_size(struct ishtp_cl *cl, int size)
{
cl->tx_ring_size = size;
}
EXPORT_SYMBOL(ishtp_set_tx_ring_size);
void ishtp_set_rx_ring_size(struct ishtp_cl *cl, int size)
{
cl->rx_ring_size = size;
}
EXPORT_SYMBOL(ishtp_set_rx_ring_size);
void ishtp_set_connection_state(struct ishtp_cl *cl, int state)
{
cl->state = state;
}
EXPORT_SYMBOL(ishtp_set_connection_state);
void ishtp_cl_set_fw_client_id(struct ishtp_cl *cl, int fw_client_id)
{
cl->fw_client_id = fw_client_id;
}
EXPORT_SYMBOL(ishtp_cl_set_fw_client_id);
| linux-master | drivers/hid/intel-ish-hid/ishtp/client.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* ISHTP DMA I/F functions
*
* Copyright (c) 2003-2016, Intel Corporation.
*/
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include "ishtp-dev.h"
#include "client.h"
/**
* ishtp_cl_alloc_dma_buf() - Allocate DMA RX and TX buffer
* @dev: ishtp device
*
* Allocate RX and TX DMA buffer once during bus setup.
* It allocates 1MB, RX and TX DMA buffer, which are divided
* into slots.
*/
void ishtp_cl_alloc_dma_buf(struct ishtp_device *dev)
{
dma_addr_t h;
if (dev->ishtp_host_dma_tx_buf)
return;
dev->ishtp_host_dma_tx_buf_size = 1024*1024;
dev->ishtp_host_dma_rx_buf_size = 1024*1024;
/* Allocate Tx buffer and init usage bitmap */
dev->ishtp_host_dma_tx_buf = dma_alloc_coherent(dev->devc,
dev->ishtp_host_dma_tx_buf_size,
&h, GFP_KERNEL);
if (dev->ishtp_host_dma_tx_buf)
dev->ishtp_host_dma_tx_buf_phys = h;
dev->ishtp_dma_num_slots = dev->ishtp_host_dma_tx_buf_size /
DMA_SLOT_SIZE;
dev->ishtp_dma_tx_map = kcalloc(dev->ishtp_dma_num_slots,
sizeof(uint8_t),
GFP_KERNEL);
spin_lock_init(&dev->ishtp_dma_tx_lock);
/* Allocate Rx buffer */
dev->ishtp_host_dma_rx_buf = dma_alloc_coherent(dev->devc,
dev->ishtp_host_dma_rx_buf_size,
&h, GFP_KERNEL);
if (dev->ishtp_host_dma_rx_buf)
dev->ishtp_host_dma_rx_buf_phys = h;
}
/**
* ishtp_cl_free_dma_buf() - Free DMA RX and TX buffer
* @dev: ishtp device
*
* Free DMA buffer when all clients are released. This is
* only happens during error path in ISH built in driver
* model
*/
void ishtp_cl_free_dma_buf(struct ishtp_device *dev)
{
dma_addr_t h;
if (dev->ishtp_host_dma_tx_buf) {
h = dev->ishtp_host_dma_tx_buf_phys;
dma_free_coherent(dev->devc, dev->ishtp_host_dma_tx_buf_size,
dev->ishtp_host_dma_tx_buf, h);
}
if (dev->ishtp_host_dma_rx_buf) {
h = dev->ishtp_host_dma_rx_buf_phys;
dma_free_coherent(dev->devc, dev->ishtp_host_dma_rx_buf_size,
dev->ishtp_host_dma_rx_buf, h);
}
kfree(dev->ishtp_dma_tx_map);
dev->ishtp_host_dma_tx_buf = NULL;
dev->ishtp_host_dma_rx_buf = NULL;
dev->ishtp_dma_tx_map = NULL;
}
/*
* ishtp_cl_get_dma_send_buf() - Get a DMA memory slot
* @dev: ishtp device
* @size: Size of memory to get
*
* Find and return free address of "size" bytes in dma tx buffer.
* the function will mark this address as "in-used" memory.
*
* Return: NULL when no free buffer else a buffer to copy
*/
void *ishtp_cl_get_dma_send_buf(struct ishtp_device *dev,
uint32_t size)
{
unsigned long flags;
int i, j, free;
/* additional slot is needed if there is rem */
int required_slots = (size / DMA_SLOT_SIZE)
+ 1 * (size % DMA_SLOT_SIZE != 0);
if (!dev->ishtp_dma_tx_map) {
dev_err(dev->devc, "Fail to allocate Tx map\n");
return NULL;
}
spin_lock_irqsave(&dev->ishtp_dma_tx_lock, flags);
for (i = 0; i <= (dev->ishtp_dma_num_slots - required_slots); i++) {
free = 1;
for (j = 0; j < required_slots; j++)
if (dev->ishtp_dma_tx_map[i+j]) {
free = 0;
i += j;
break;
}
if (free) {
/* mark memory as "caught" */
for (j = 0; j < required_slots; j++)
dev->ishtp_dma_tx_map[i+j] = 1;
spin_unlock_irqrestore(&dev->ishtp_dma_tx_lock, flags);
return (i * DMA_SLOT_SIZE) +
(unsigned char *)dev->ishtp_host_dma_tx_buf;
}
}
spin_unlock_irqrestore(&dev->ishtp_dma_tx_lock, flags);
dev_err(dev->devc, "No free DMA buffer to send msg\n");
return NULL;
}
/*
* ishtp_cl_release_dma_acked_mem() - Release DMA memory slot
* @dev: ishtp device
* @msg_addr: message address of slot
* @size: Size of memory to get
*
* Release_dma_acked_mem - returnes the acked memory to free list.
* (from msg_addr, size bytes long)
*/
void ishtp_cl_release_dma_acked_mem(struct ishtp_device *dev,
void *msg_addr,
uint8_t size)
{
unsigned long flags;
int acked_slots = (size / DMA_SLOT_SIZE)
+ 1 * (size % DMA_SLOT_SIZE != 0);
int i, j;
if ((msg_addr - dev->ishtp_host_dma_tx_buf) % DMA_SLOT_SIZE) {
dev_err(dev->devc, "Bad DMA Tx ack address\n");
return;
}
if (!dev->ishtp_dma_tx_map) {
dev_err(dev->devc, "Fail to allocate Tx map\n");
return;
}
i = (msg_addr - dev->ishtp_host_dma_tx_buf) / DMA_SLOT_SIZE;
spin_lock_irqsave(&dev->ishtp_dma_tx_lock, flags);
for (j = 0; j < acked_slots; j++) {
if ((i + j) >= dev->ishtp_dma_num_slots ||
!dev->ishtp_dma_tx_map[i+j]) {
/* no such slot, or memory is already free */
spin_unlock_irqrestore(&dev->ishtp_dma_tx_lock, flags);
dev_err(dev->devc, "Bad DMA Tx ack address\n");
return;
}
dev->ishtp_dma_tx_map[i+j] = 0;
}
spin_unlock_irqrestore(&dev->ishtp_dma_tx_lock, flags);
}
| linux-master | drivers/hid/intel-ish-hid/ishtp/dma-if.c |
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