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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
*/
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/idr.h>
#include <linux/kdev_t.h>
#include <linux/err.h>
#include <linux/dca.h>
#include <linux/gfp.h>
#include <linux/export.h>
static struct class *dca_class;
static struct idr dca_idr;
static spinlock_t dca_idr_lock;
int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot)
{
struct device *cd;
static int req_count;
cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), NULL,
"requester%d", req_count++);
return PTR_ERR_OR_ZERO(cd);
}
void dca_sysfs_remove_req(struct dca_provider *dca, int slot)
{
device_destroy(dca_class, MKDEV(0, slot + 1));
}
int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev)
{
struct device *cd;
int ret;
idr_preload(GFP_KERNEL);
spin_lock(&dca_idr_lock);
ret = idr_alloc(&dca_idr, dca, 0, 0, GFP_NOWAIT);
if (ret >= 0)
dca->id = ret;
spin_unlock(&dca_idr_lock);
idr_preload_end();
if (ret < 0)
return ret;
cd = device_create(dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id);
if (IS_ERR(cd)) {
spin_lock(&dca_idr_lock);
idr_remove(&dca_idr, dca->id);
spin_unlock(&dca_idr_lock);
return PTR_ERR(cd);
}
dca->cd = cd;
return 0;
}
void dca_sysfs_remove_provider(struct dca_provider *dca)
{
device_unregister(dca->cd);
dca->cd = NULL;
spin_lock(&dca_idr_lock);
idr_remove(&dca_idr, dca->id);
spin_unlock(&dca_idr_lock);
}
int __init dca_sysfs_init(void)
{
idr_init(&dca_idr);
spin_lock_init(&dca_idr_lock);
dca_class = class_create("dca");
if (IS_ERR(dca_class)) {
idr_destroy(&dca_idr);
return PTR_ERR(dca_class);
}
return 0;
}
void __exit dca_sysfs_exit(void)
{
class_destroy(dca_class);
idr_destroy(&dca_idr);
}
| linux-master | drivers/dca/dca-sysfs.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
*/
/*
* This driver supports an interface for DCA clients and providers to meet.
*/
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/device.h>
#include <linux/dca.h>
#include <linux/slab.h>
#include <linux/module.h>
#define DCA_VERSION "1.12.1"
MODULE_VERSION(DCA_VERSION);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Intel Corporation");
static DEFINE_RAW_SPINLOCK(dca_lock);
static LIST_HEAD(dca_domains);
static BLOCKING_NOTIFIER_HEAD(dca_provider_chain);
static int dca_providers_blocked;
static struct pci_bus *dca_pci_rc_from_dev(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pci_bus *bus = pdev->bus;
while (bus->parent)
bus = bus->parent;
return bus;
}
static struct dca_domain *dca_allocate_domain(struct pci_bus *rc)
{
struct dca_domain *domain;
domain = kzalloc(sizeof(*domain), GFP_NOWAIT);
if (!domain)
return NULL;
INIT_LIST_HEAD(&domain->dca_providers);
domain->pci_rc = rc;
return domain;
}
static void dca_free_domain(struct dca_domain *domain)
{
list_del(&domain->node);
kfree(domain);
}
static int dca_provider_ioat_ver_3_0(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
return ((pdev->vendor == PCI_VENDOR_ID_INTEL) &&
((pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG0) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG1) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG2) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG3) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG4) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG5) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG6) ||
(pdev->device == PCI_DEVICE_ID_INTEL_IOAT_TBG7)));
}
static void unregister_dca_providers(void)
{
struct dca_provider *dca, *_dca;
struct list_head unregistered_providers;
struct dca_domain *domain;
unsigned long flags;
blocking_notifier_call_chain(&dca_provider_chain,
DCA_PROVIDER_REMOVE, NULL);
INIT_LIST_HEAD(&unregistered_providers);
raw_spin_lock_irqsave(&dca_lock, flags);
if (list_empty(&dca_domains)) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return;
}
/* at this point only one domain in the list is expected */
domain = list_first_entry(&dca_domains, struct dca_domain, node);
list_for_each_entry_safe(dca, _dca, &domain->dca_providers, node)
list_move(&dca->node, &unregistered_providers);
dca_free_domain(domain);
raw_spin_unlock_irqrestore(&dca_lock, flags);
list_for_each_entry_safe(dca, _dca, &unregistered_providers, node) {
dca_sysfs_remove_provider(dca);
list_del(&dca->node);
}
}
static struct dca_domain *dca_find_domain(struct pci_bus *rc)
{
struct dca_domain *domain;
list_for_each_entry(domain, &dca_domains, node)
if (domain->pci_rc == rc)
return domain;
return NULL;
}
static struct dca_domain *dca_get_domain(struct device *dev)
{
struct pci_bus *rc;
struct dca_domain *domain;
rc = dca_pci_rc_from_dev(dev);
domain = dca_find_domain(rc);
if (!domain) {
if (dca_provider_ioat_ver_3_0(dev) && !list_empty(&dca_domains))
dca_providers_blocked = 1;
}
return domain;
}
static struct dca_provider *dca_find_provider_by_dev(struct device *dev)
{
struct dca_provider *dca;
struct pci_bus *rc;
struct dca_domain *domain;
if (dev) {
rc = dca_pci_rc_from_dev(dev);
domain = dca_find_domain(rc);
if (!domain)
return NULL;
} else {
if (!list_empty(&dca_domains))
domain = list_first_entry(&dca_domains,
struct dca_domain,
node);
else
return NULL;
}
list_for_each_entry(dca, &domain->dca_providers, node)
if ((!dev) || (dca->ops->dev_managed(dca, dev)))
return dca;
return NULL;
}
/**
* dca_add_requester - add a dca client to the list
* @dev - the device that wants dca service
*/
int dca_add_requester(struct device *dev)
{
struct dca_provider *dca;
int err, slot = -ENODEV;
unsigned long flags;
struct pci_bus *pci_rc;
struct dca_domain *domain;
if (!dev)
return -EFAULT;
raw_spin_lock_irqsave(&dca_lock, flags);
/* check if the requester has not been added already */
dca = dca_find_provider_by_dev(dev);
if (dca) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return -EEXIST;
}
pci_rc = dca_pci_rc_from_dev(dev);
domain = dca_find_domain(pci_rc);
if (!domain) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return -ENODEV;
}
list_for_each_entry(dca, &domain->dca_providers, node) {
slot = dca->ops->add_requester(dca, dev);
if (slot >= 0)
break;
}
raw_spin_unlock_irqrestore(&dca_lock, flags);
if (slot < 0)
return slot;
err = dca_sysfs_add_req(dca, dev, slot);
if (err) {
raw_spin_lock_irqsave(&dca_lock, flags);
if (dca == dca_find_provider_by_dev(dev))
dca->ops->remove_requester(dca, dev);
raw_spin_unlock_irqrestore(&dca_lock, flags);
return err;
}
return 0;
}
EXPORT_SYMBOL_GPL(dca_add_requester);
/**
* dca_remove_requester - remove a dca client from the list
* @dev - the device that wants dca service
*/
int dca_remove_requester(struct device *dev)
{
struct dca_provider *dca;
int slot;
unsigned long flags;
if (!dev)
return -EFAULT;
raw_spin_lock_irqsave(&dca_lock, flags);
dca = dca_find_provider_by_dev(dev);
if (!dca) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return -ENODEV;
}
slot = dca->ops->remove_requester(dca, dev);
raw_spin_unlock_irqrestore(&dca_lock, flags);
if (slot < 0)
return slot;
dca_sysfs_remove_req(dca, slot);
return 0;
}
EXPORT_SYMBOL_GPL(dca_remove_requester);
/**
* dca_common_get_tag - return the dca tag (serves both new and old api)
* @dev - the device that wants dca service
* @cpu - the cpuid as returned by get_cpu()
*/
static u8 dca_common_get_tag(struct device *dev, int cpu)
{
struct dca_provider *dca;
u8 tag;
unsigned long flags;
raw_spin_lock_irqsave(&dca_lock, flags);
dca = dca_find_provider_by_dev(dev);
if (!dca) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return -ENODEV;
}
tag = dca->ops->get_tag(dca, dev, cpu);
raw_spin_unlock_irqrestore(&dca_lock, flags);
return tag;
}
/**
* dca3_get_tag - return the dca tag to the requester device
* for the given cpu (new api)
* @dev - the device that wants dca service
* @cpu - the cpuid as returned by get_cpu()
*/
u8 dca3_get_tag(struct device *dev, int cpu)
{
if (!dev)
return -EFAULT;
return dca_common_get_tag(dev, cpu);
}
EXPORT_SYMBOL_GPL(dca3_get_tag);
/**
* dca_get_tag - return the dca tag for the given cpu (old api)
* @cpu - the cpuid as returned by get_cpu()
*/
u8 dca_get_tag(int cpu)
{
return dca_common_get_tag(NULL, cpu);
}
EXPORT_SYMBOL_GPL(dca_get_tag);
/**
* alloc_dca_provider - get data struct for describing a dca provider
* @ops - pointer to struct of dca operation function pointers
* @priv_size - size of extra mem to be added for provider's needs
*/
struct dca_provider *alloc_dca_provider(const struct dca_ops *ops,
int priv_size)
{
struct dca_provider *dca;
int alloc_size;
alloc_size = (sizeof(*dca) + priv_size);
dca = kzalloc(alloc_size, GFP_KERNEL);
if (!dca)
return NULL;
dca->ops = ops;
return dca;
}
EXPORT_SYMBOL_GPL(alloc_dca_provider);
/**
* free_dca_provider - release the dca provider data struct
* @ops - pointer to struct of dca operation function pointers
* @priv_size - size of extra mem to be added for provider's needs
*/
void free_dca_provider(struct dca_provider *dca)
{
kfree(dca);
}
EXPORT_SYMBOL_GPL(free_dca_provider);
/**
* register_dca_provider - register a dca provider
* @dca - struct created by alloc_dca_provider()
* @dev - device providing dca services
*/
int register_dca_provider(struct dca_provider *dca, struct device *dev)
{
int err;
unsigned long flags;
struct dca_domain *domain, *newdomain = NULL;
raw_spin_lock_irqsave(&dca_lock, flags);
if (dca_providers_blocked) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return -ENODEV;
}
raw_spin_unlock_irqrestore(&dca_lock, flags);
err = dca_sysfs_add_provider(dca, dev);
if (err)
return err;
raw_spin_lock_irqsave(&dca_lock, flags);
domain = dca_get_domain(dev);
if (!domain) {
struct pci_bus *rc;
if (dca_providers_blocked) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
dca_sysfs_remove_provider(dca);
unregister_dca_providers();
return -ENODEV;
}
raw_spin_unlock_irqrestore(&dca_lock, flags);
rc = dca_pci_rc_from_dev(dev);
newdomain = dca_allocate_domain(rc);
if (!newdomain)
return -ENODEV;
raw_spin_lock_irqsave(&dca_lock, flags);
/* Recheck, we might have raced after dropping the lock */
domain = dca_get_domain(dev);
if (!domain) {
domain = newdomain;
newdomain = NULL;
list_add(&domain->node, &dca_domains);
}
}
list_add(&dca->node, &domain->dca_providers);
raw_spin_unlock_irqrestore(&dca_lock, flags);
blocking_notifier_call_chain(&dca_provider_chain,
DCA_PROVIDER_ADD, NULL);
kfree(newdomain);
return 0;
}
EXPORT_SYMBOL_GPL(register_dca_provider);
/**
* unregister_dca_provider - remove a dca provider
* @dca - struct created by alloc_dca_provider()
*/
void unregister_dca_provider(struct dca_provider *dca, struct device *dev)
{
unsigned long flags;
struct pci_bus *pci_rc;
struct dca_domain *domain;
blocking_notifier_call_chain(&dca_provider_chain,
DCA_PROVIDER_REMOVE, NULL);
raw_spin_lock_irqsave(&dca_lock, flags);
if (list_empty(&dca_domains)) {
raw_spin_unlock_irqrestore(&dca_lock, flags);
return;
}
list_del(&dca->node);
pci_rc = dca_pci_rc_from_dev(dev);
domain = dca_find_domain(pci_rc);
if (list_empty(&domain->dca_providers))
dca_free_domain(domain);
raw_spin_unlock_irqrestore(&dca_lock, flags);
dca_sysfs_remove_provider(dca);
}
EXPORT_SYMBOL_GPL(unregister_dca_provider);
/**
* dca_register_notify - register a client's notifier callback
*/
void dca_register_notify(struct notifier_block *nb)
{
blocking_notifier_chain_register(&dca_provider_chain, nb);
}
EXPORT_SYMBOL_GPL(dca_register_notify);
/**
* dca_unregister_notify - remove a client's notifier callback
*/
void dca_unregister_notify(struct notifier_block *nb)
{
blocking_notifier_chain_unregister(&dca_provider_chain, nb);
}
EXPORT_SYMBOL_GPL(dca_unregister_notify);
static int __init dca_init(void)
{
pr_info("dca service started, version %s\n", DCA_VERSION);
return dca_sysfs_init();
}
static void __exit dca_exit(void)
{
dca_sysfs_exit();
}
arch_initcall(dca_init);
module_exit(dca_exit);
| linux-master | drivers/dca/dca-core.c |
/*======================================================================
Device driver for the PCMCIA control functionality of StrongARM
SA-1100 microprocessors.
The contents of this file are subject to the Mozilla Public
License Version 1.1 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
The initial developer of the original code is John G. Dorsey
<[email protected]>. Portions created by John G. Dorsey are
Copyright (C) 1999 John G. Dorsey. All Rights Reserved.
Alternatively, the contents of this file may be used under the
terms of the GNU Public License version 2 (the "GPL"), in which
case the provisions of the GPL are applicable instead of the
above. If you wish to allow the use of your version of this file
only under the terms of the GPL and not to allow others to use
your version of this file under the MPL, indicate your decision
by deleting the provisions above and replace them with the notice
and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this
file under either the MPL or the GPL.
======================================================================*/
#include <linux/module.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <pcmcia/ss.h>
#include <asm/hardware/scoop.h>
#include "sa1100_generic.h"
static const char *sa11x0_cf_gpio_names[] = {
[SOC_STAT_CD] = "detect",
[SOC_STAT_BVD1] = "bvd1",
[SOC_STAT_BVD2] = "bvd2",
[SOC_STAT_RDY] = "ready",
};
static int sa11x0_cf_hw_init(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
int i;
skt->gpio_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(skt->gpio_reset))
return PTR_ERR(skt->gpio_reset);
skt->gpio_bus_enable = devm_gpiod_get_optional(dev, "bus-enable",
GPIOD_OUT_HIGH);
if (IS_ERR(skt->gpio_bus_enable))
return PTR_ERR(skt->gpio_bus_enable);
skt->vcc.reg = devm_regulator_get_optional(dev, "vcc");
if (IS_ERR(skt->vcc.reg))
return PTR_ERR(skt->vcc.reg);
if (!skt->vcc.reg)
dev_warn(dev,
"no Vcc regulator provided, ignoring Vcc controls\n");
for (i = 0; i < ARRAY_SIZE(sa11x0_cf_gpio_names); i++) {
skt->stat[i].name = sa11x0_cf_gpio_names[i];
skt->stat[i].desc = devm_gpiod_get_optional(dev,
sa11x0_cf_gpio_names[i], GPIOD_IN);
if (IS_ERR(skt->stat[i].desc))
return PTR_ERR(skt->stat[i].desc);
}
return 0;
}
static int sa11x0_cf_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
return soc_pcmcia_regulator_set(skt, &skt->vcc, state->Vcc);
}
static struct pcmcia_low_level sa11x0_cf_ops = {
.owner = THIS_MODULE,
.hw_init = sa11x0_cf_hw_init,
.socket_state = soc_common_cf_socket_state,
.configure_socket = sa11x0_cf_configure_socket,
};
int __init pcmcia_collie_init(struct device *dev);
static int (*sa11x0_pcmcia_legacy_hw_init[])(struct device *dev) = {
#ifdef CONFIG_SA1100_H3600
pcmcia_h3600_init,
#endif
#ifdef CONFIG_SA1100_COLLIE
pcmcia_collie_init,
#endif
};
static int sa11x0_drv_pcmcia_legacy_probe(struct platform_device *dev)
{
int i, ret = -ENODEV;
/*
* Initialise any "on-board" PCMCIA sockets.
*/
for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_legacy_hw_init); i++) {
ret = sa11x0_pcmcia_legacy_hw_init[i](&dev->dev);
if (ret == 0)
break;
}
return ret;
}
static void sa11x0_drv_pcmcia_legacy_remove(struct platform_device *dev)
{
struct skt_dev_info *sinfo = platform_get_drvdata(dev);
int i;
platform_set_drvdata(dev, NULL);
for (i = 0; i < sinfo->nskt; i++)
soc_pcmcia_remove_one(&sinfo->skt[i]);
}
static int sa11x0_drv_pcmcia_probe(struct platform_device *pdev)
{
struct soc_pcmcia_socket *skt;
struct device *dev = &pdev->dev;
if (pdev->id == -1)
return sa11x0_drv_pcmcia_legacy_probe(pdev);
skt = devm_kzalloc(dev, sizeof(*skt), GFP_KERNEL);
if (!skt)
return -ENOMEM;
platform_set_drvdata(pdev, skt);
skt->nr = pdev->id;
skt->clk = devm_clk_get(dev, NULL);
if (IS_ERR(skt->clk))
return PTR_ERR(skt->clk);
sa11xx_drv_pcmcia_ops(&sa11x0_cf_ops);
soc_pcmcia_init_one(skt, &sa11x0_cf_ops, dev);
return sa11xx_drv_pcmcia_add_one(skt);
}
static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
{
struct soc_pcmcia_socket *skt;
if (dev->id == -1) {
sa11x0_drv_pcmcia_legacy_remove(dev);
return 0;
}
skt = platform_get_drvdata(dev);
soc_pcmcia_remove_one(skt);
return 0;
}
static struct platform_driver sa11x0_pcmcia_driver = {
.driver = {
.name = "sa11x0-pcmcia",
},
.probe = sa11x0_drv_pcmcia_probe,
.remove = sa11x0_drv_pcmcia_remove,
};
/* sa11x0_pcmcia_init()
* ^^^^^^^^^^^^^^^^^^^^
*
* This routine performs low-level PCMCIA initialization and then
* registers this socket driver with Card Services.
*
* Returns: 0 on success, -ve error code on failure
*/
static int __init sa11x0_pcmcia_init(void)
{
return platform_driver_register(&sa11x0_pcmcia_driver);
}
/* sa11x0_pcmcia_exit()
* ^^^^^^^^^^^^^^^^^^^^
* Invokes the low-level kernel service to free IRQs associated with this
* socket controller and reset GPIO edge detection.
*/
static void __exit sa11x0_pcmcia_exit(void)
{
platform_driver_unregister(&sa11x0_pcmcia_driver);
}
MODULE_AUTHOR("John Dorsey <[email protected]>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11x0 Socket Controller");
MODULE_LICENSE("Dual MPL/GPL");
fs_initcall(sa11x0_pcmcia_init);
module_exit(sa11x0_pcmcia_exit);
| linux-master | drivers/pcmcia/sa1100_generic.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards.
*
* Copyright (c) 2009 Manuel Lauss <[email protected]>
*
*/
/* This is a fairly generic PCMCIA socket driver suitable for the
* following Alchemy Development boards:
* Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200, Db1300
*
* The Db1000 is used as a reference: Per-socket card-, carddetect- and
* statuschange IRQs connected to SoC GPIOs, control and status register
* bits arranged in per-socket groups in an external PLD. All boards
* listed here use this layout, including bit positions and meanings.
* Of course there are exceptions in later boards:
*
* - Pb1100/Pb1500: single socket only; voltage key bits VS are
* at STATUS[5:4] (instead of STATUS[1:0]).
* - Au1200-based: additional card-eject irqs, irqs not gpios!
* - Db1300: Db1200-like, no pwr ctrl, single socket (#1).
*/
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/resource.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <pcmcia/ss.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-db1x00/bcsr.h>
#define MEM_MAP_SIZE 0x400000
#define IO_MAP_SIZE 0x1000
struct db1x_pcmcia_sock {
struct pcmcia_socket socket;
int nr; /* socket number */
void *virt_io;
phys_addr_t phys_io;
phys_addr_t phys_attr;
phys_addr_t phys_mem;
/* previous flags for set_socket() */
unsigned int old_flags;
/* interrupt sources: linux irq numbers! */
int insert_irq; /* default carddetect irq */
int stschg_irq; /* card-status-change irq */
int card_irq; /* card irq */
int eject_irq; /* db1200/pb1200 have these */
int insert_gpio; /* db1000 carddetect gpio */
#define BOARD_TYPE_DEFAULT 0 /* most boards */
#define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */
#define BOARD_TYPE_PB1100 2 /* VS bits slightly different */
#define BOARD_TYPE_DB1300 3 /* no power control */
int board_type;
};
#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket)
static int db1300_card_inserted(struct db1x_pcmcia_sock *sock)
{
return bcsr_read(BCSR_SIGSTAT) & (1 << 8);
}
/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */
static int db1200_card_inserted(struct db1x_pcmcia_sock *sock)
{
unsigned short sigstat;
sigstat = bcsr_read(BCSR_SIGSTAT);
return sigstat & 1 << (8 + 2 * sock->nr);
}
/* carddetect gpio: low-active */
static int db1000_card_inserted(struct db1x_pcmcia_sock *sock)
{
return !gpio_get_value(sock->insert_gpio);
}
static int db1x_card_inserted(struct db1x_pcmcia_sock *sock)
{
switch (sock->board_type) {
case BOARD_TYPE_DB1200:
return db1200_card_inserted(sock);
case BOARD_TYPE_DB1300:
return db1300_card_inserted(sock);
default:
return db1000_card_inserted(sock);
}
}
/* STSCHG tends to bounce heavily when cards are inserted/ejected.
* To avoid this, the interrupt is normally disabled and only enabled
* after reset to a card has been de-asserted.
*/
static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en)
{
if (sock->stschg_irq != -1) {
if (en)
enable_irq(sock->stschg_irq);
else
disable_irq(sock->stschg_irq);
}
}
static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data)
{
struct db1x_pcmcia_sock *sock = data;
pcmcia_parse_events(&sock->socket, SS_DETECT);
return IRQ_HANDLED;
}
static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data)
{
struct db1x_pcmcia_sock *sock = data;
pcmcia_parse_events(&sock->socket, SS_STSCHG);
return IRQ_HANDLED;
}
/* Db/Pb1200 have separate per-socket insertion and ejection
* interrupts which stay asserted as long as the card is
* inserted/missing. The one which caused us to be called
* needs to be disabled and the other one enabled.
*/
static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data)
{
disable_irq_nosync(irq);
return IRQ_WAKE_THREAD;
}
static irqreturn_t db1200_pcmcia_cdirq_fn(int irq, void *data)
{
struct db1x_pcmcia_sock *sock = data;
/* Wait a bit for the signals to stop bouncing. */
msleep(100);
if (irq == sock->insert_irq)
enable_irq(sock->eject_irq);
else
enable_irq(sock->insert_irq);
pcmcia_parse_events(&sock->socket, SS_DETECT);
return IRQ_HANDLED;
}
static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
{
int ret;
if (sock->stschg_irq != -1) {
ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq,
0, "pcmcia_stschg", sock);
if (ret)
return ret;
}
/* Db/Pb1200 have separate per-socket insertion and ejection
* interrupts, which should show edge behaviour but don't.
* So interrupts are disabled until both insertion and
* ejection handler have been registered and the currently
* active one disabled.
*/
if ((sock->board_type == BOARD_TYPE_DB1200) ||
(sock->board_type == BOARD_TYPE_DB1300)) {
ret = request_threaded_irq(sock->insert_irq, db1200_pcmcia_cdirq,
db1200_pcmcia_cdirq_fn, 0, "pcmcia_insert", sock);
if (ret)
goto out1;
ret = request_threaded_irq(sock->eject_irq, db1200_pcmcia_cdirq,
db1200_pcmcia_cdirq_fn, 0, "pcmcia_eject", sock);
if (ret) {
free_irq(sock->insert_irq, sock);
goto out1;
}
/* enable the currently silent one */
if (db1x_card_inserted(sock))
enable_irq(sock->eject_irq);
else
enable_irq(sock->insert_irq);
} else {
/* all other (older) Db1x00 boards use a GPIO to show
* card detection status: use both-edge triggers.
*/
irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH);
ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq,
0, "pcmcia_carddetect", sock);
if (ret)
goto out1;
}
return 0; /* all done */
out1:
if (sock->stschg_irq != -1)
free_irq(sock->stschg_irq, sock);
return ret;
}
static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock)
{
if (sock->stschg_irq != -1)
free_irq(sock->stschg_irq, sock);
free_irq(sock->insert_irq, sock);
if (sock->eject_irq != -1)
free_irq(sock->eject_irq, sock);
}
/*
* configure a PCMCIA socket on the Db1x00 series of boards (and
* compatibles).
*
* 2 external registers are involved:
* pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id
* pcmcia_control(offset 0x10):
* bits[0:1] set vcc for card
* bits[2:3] set vpp for card
* bit 4: enable data buffers
* bit 7: reset# for card
* add 8 for second socket.
*/
static int db1x_pcmcia_configure(struct pcmcia_socket *skt,
struct socket_state_t *state)
{
struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
unsigned short cr_clr, cr_set;
unsigned int changed;
int v, p, ret;
/* card voltage setup */
cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */
cr_set = 0;
v = p = ret = 0;
switch (state->Vcc) {
case 50:
++v;
fallthrough;
case 33:
++v;
fallthrough;
case 0:
break;
default:
printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n",
sock->nr, state->Vcc);
}
switch (state->Vpp) {
case 12:
++p;
fallthrough;
case 33:
case 50:
++p;
fallthrough;
case 0:
break;
default:
printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n",
sock->nr, state->Vpp);
}
/* sanity check: Vpp must be 0, 12, or Vcc */
if (((state->Vcc == 33) && (state->Vpp == 50)) ||
((state->Vcc == 50) && (state->Vpp == 33))) {
printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n",
sock->nr, state->Vcc, state->Vpp);
v = p = 0;
ret = -EINVAL;
}
/* create new voltage code */
if (sock->board_type != BOARD_TYPE_DB1300)
cr_set |= ((v << 2) | p) << (sock->nr * 8);
changed = state->flags ^ sock->old_flags;
if (changed & SS_RESET) {
if (state->flags & SS_RESET) {
set_stschg(sock, 0);
/* assert reset, disable io buffers */
cr_clr |= (1 << (7 + (sock->nr * 8)));
cr_clr |= (1 << (4 + (sock->nr * 8)));
} else {
/* de-assert reset, enable io buffers */
cr_set |= 1 << (7 + (sock->nr * 8));
cr_set |= 1 << (4 + (sock->nr * 8));
}
}
/* update PCMCIA configuration */
bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set);
sock->old_flags = state->flags;
/* reset was taken away: give card time to initialize properly */
if ((changed & SS_RESET) && !(state->flags & SS_RESET)) {
msleep(500);
set_stschg(sock, 1);
}
return ret;
}
/* VCC bits at [3:2]/[11:10] */
#define GET_VCC(cr, socknr) \
((((cr) >> 2) >> ((socknr) * 8)) & 3)
/* VS bits at [0:1]/[3:2] */
#define GET_VS(sr, socknr) \
(((sr) >> (2 * (socknr))) & 3)
/* reset bits at [7]/[15] */
#define GET_RESET(cr, socknr) \
((cr) & (1 << (7 + (8 * (socknr)))))
static int db1x_pcmcia_get_status(struct pcmcia_socket *skt,
unsigned int *value)
{
struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
unsigned short cr, sr;
unsigned int status;
status = db1x_card_inserted(sock) ? SS_DETECT : 0;
cr = bcsr_read(BCSR_PCMCIA);
sr = bcsr_read(BCSR_STATUS);
/* PB1100/PB1500: voltage key bits are at [5:4] */
if (sock->board_type == BOARD_TYPE_PB1100)
sr >>= 4;
/* determine card type */
switch (GET_VS(sr, sock->nr)) {
case 0:
case 2:
status |= SS_3VCARD; /* 3V card */
break;
case 3:
break; /* 5V card: set nothing */
default:
status |= SS_XVCARD; /* treated as unsupported in core */
}
/* if Vcc is not zero, we have applied power to a card */
status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0;
/* DB1300: power always on, but don't tell when no card present */
if ((sock->board_type == BOARD_TYPE_DB1300) && (status & SS_DETECT))
status = SS_POWERON | SS_3VCARD | SS_DETECT;
/* reset de-asserted? then we're ready */
status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET;
*value = status;
return 0;
}
static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt)
{
return 0;
}
static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt)
{
return 0;
}
static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt,
struct pccard_io_map *map)
{
struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
map->start = (u32)sock->virt_io;
map->stop = map->start + IO_MAP_SIZE;
return 0;
}
static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt,
struct pccard_mem_map *map)
{
struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
if (map->flags & MAP_ATTRIB)
map->static_start = sock->phys_attr + map->card_start;
else
map->static_start = sock->phys_mem + map->card_start;
return 0;
}
static struct pccard_operations db1x_pcmcia_operations = {
.init = db1x_pcmcia_sock_init,
.suspend = db1x_pcmcia_sock_suspend,
.get_status = db1x_pcmcia_get_status,
.set_socket = db1x_pcmcia_configure,
.set_io_map = au1x00_pcmcia_set_io_map,
.set_mem_map = au1x00_pcmcia_set_mem_map,
};
static int db1x_pcmcia_socket_probe(struct platform_device *pdev)
{
struct db1x_pcmcia_sock *sock;
struct resource *r;
int ret, bid;
sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL);
if (!sock)
return -ENOMEM;
sock->nr = pdev->id;
bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
switch (bid) {
case BCSR_WHOAMI_PB1500:
case BCSR_WHOAMI_PB1500R2:
case BCSR_WHOAMI_PB1100:
sock->board_type = BOARD_TYPE_PB1100;
break;
case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR:
sock->board_type = BOARD_TYPE_DEFAULT;
break;
case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200:
sock->board_type = BOARD_TYPE_DB1200;
break;
case BCSR_WHOAMI_DB1300:
sock->board_type = BOARD_TYPE_DB1300;
break;
default:
printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid);
ret = -ENODEV;
goto out0;
}
/*
* gather resources necessary and optional nice-to-haves to
* operate a socket:
* This includes IRQs for Carddetection/ejection, the card
* itself and optional status change detection.
* Also, the memory areas covered by a socket. For these
* we require the real 36bit addresses (see the au1000.h
* header for more information).
*/
/* card: irq assigned to the card itself. */
r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card");
sock->card_irq = r ? r->start : 0;
/* insert: irq which triggers on card insertion/ejection
* BIG FAT NOTE: on DB1000/1100/1500/1550 we pass a GPIO here!
*/
r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert");
sock->insert_irq = r ? r->start : -1;
if (sock->board_type == BOARD_TYPE_DEFAULT) {
sock->insert_gpio = r ? r->start : -1;
sock->insert_irq = r ? gpio_to_irq(r->start) : -1;
}
/* stschg: irq which trigger on card status change (optional) */
r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg");
sock->stschg_irq = r ? r->start : -1;
/* eject: irq which triggers on ejection (DB1200/PB1200 only) */
r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject");
sock->eject_irq = r ? r->start : -1;
ret = -ENODEV;
/* 36bit PCMCIA Attribute area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr");
if (!r) {
printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n",
sock->nr);
goto out0;
}
sock->phys_attr = r->start;
/* 36bit PCMCIA Memory area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem");
if (!r) {
printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n",
sock->nr);
goto out0;
}
sock->phys_mem = r->start;
/* 36bit PCMCIA IO area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io");
if (!r) {
printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n",
sock->nr);
goto out0;
}
sock->phys_io = r->start;
/*
* PCMCIA client drivers use the inb/outb macros to access
* the IO registers. Since mips_io_port_base is added
* to the access address of the mips implementation of
* inb/outb, we need to subtract it here because we want
* to access the I/O or MEM address directly, without
* going through this "mips_io_port_base" mechanism.
*/
sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) -
mips_io_port_base);
if (!sock->virt_io) {
printk(KERN_ERR "pcmcia%d: cannot remap IO area\n",
sock->nr);
ret = -ENOMEM;
goto out0;
}
sock->socket.ops = &db1x_pcmcia_operations;
sock->socket.owner = THIS_MODULE;
sock->socket.pci_irq = sock->card_irq;
sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
sock->socket.map_size = MEM_MAP_SIZE;
sock->socket.io_offset = (unsigned long)sock->virt_io;
sock->socket.dev.parent = &pdev->dev;
sock->socket.resource_ops = &pccard_static_ops;
platform_set_drvdata(pdev, sock);
ret = db1x_pcmcia_setup_irqs(sock);
if (ret) {
printk(KERN_ERR "pcmcia%d cannot setup interrupts\n",
sock->nr);
goto out1;
}
set_stschg(sock, 0);
ret = pcmcia_register_socket(&sock->socket);
if (ret) {
printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr);
goto out2;
}
printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx"
"(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d "
"%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io,
sock->phys_attr, sock->phys_mem, sock->card_irq,
sock->insert_irq, sock->stschg_irq, sock->eject_irq);
return 0;
out2:
db1x_pcmcia_free_irqs(sock);
out1:
iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
out0:
kfree(sock);
return ret;
}
static int db1x_pcmcia_socket_remove(struct platform_device *pdev)
{
struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev);
db1x_pcmcia_free_irqs(sock);
pcmcia_unregister_socket(&sock->socket);
iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
kfree(sock);
return 0;
}
static struct platform_driver db1x_pcmcia_socket_driver = {
.driver = {
.name = "db1xxx_pcmcia",
},
.probe = db1x_pcmcia_socket_probe,
.remove = db1x_pcmcia_socket_remove,
};
module_platform_driver(db1x_pcmcia_socket_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards");
MODULE_AUTHOR("Manuel Lauss");
| linux-master | drivers/pcmcia/db1xxx_ss.c |
// SPDX-License-Identifier: GPL-2.0
/*
* linux/drivers/pcmcia/sa1100_neponset.c
*
* Neponset PCMCIA specific routines
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <asm/mach-types.h>
#include "sa1111_generic.h"
#include "max1600.h"
/*
* Neponset uses the Maxim MAX1600, with the following connections:
*
* MAX1600 Neponset
*
* A0VCC SA-1111 GPIO A<1>
* A1VCC SA-1111 GPIO A<0>
* A0VPP CPLD NCR A0VPP
* A1VPP CPLD NCR A1VPP
* B0VCC SA-1111 GPIO A<2>
* B1VCC SA-1111 GPIO A<3>
* B0VPP ground (slot B is CF)
* B1VPP ground (slot B is CF)
*
* VX VCC (5V)
* VY VCC3_3 (3.3V)
* 12INA 12V
* 12INB ground (slot B is CF)
*
* The MAX1600 CODE pin is tied to ground, placing the device in
* "Standard Intel code" mode. Refer to the Maxim data sheet for
* the corresponding truth table.
*/
static int neponset_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
struct max1600 *m;
int ret;
ret = max1600_init(skt->socket.dev.parent, &m,
skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,
MAX1600_CODE_LOW);
if (ret == 0)
skt->driver_data = m;
return ret;
}
static int
neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct max1600 *m = skt->driver_data;
int ret;
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0)
ret = max1600_configure(m, state->Vcc, state->Vpp);
return ret;
}
static struct pcmcia_low_level neponset_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = neponset_pcmcia_hw_init,
.configure_socket = neponset_pcmcia_configure_socket,
.first = 0,
.nr = 2,
};
int pcmcia_neponset_init(struct sa1111_dev *sadev)
{
sa11xx_drv_pcmcia_ops(&neponset_pcmcia_ops);
return sa1111_pcmcia_add(sadev, &neponset_pcmcia_ops,
sa11xx_drv_pcmcia_add_one);
}
| linux-master | drivers/pcmcia/sa1111_neponset.c |
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2008 Maxime Bizon <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/gpio.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
#include "bcm63xx_pcmcia.h"
#define PFX "bcm63xx_pcmcia: "
#ifdef CONFIG_CARDBUS
/* if cardbus is used, platform device needs reference to actual pci
* device */
static struct pci_dev *bcm63xx_cb_dev;
#endif
/*
* read/write helper for pcmcia regs
*/
static inline u32 pcmcia_readl(struct bcm63xx_pcmcia_socket *skt, u32 off)
{
return bcm_readl(skt->base + off);
}
static inline void pcmcia_writel(struct bcm63xx_pcmcia_socket *skt,
u32 val, u32 off)
{
bcm_writel(val, skt->base + off);
}
/*
* This callback should (re-)initialise the socket, turn on status
* interrupts and PCMCIA bus, and wait for power to stabilise so that
* the card status signals report correctly.
*
* Hardware cannot do that.
*/
static int bcm63xx_pcmcia_sock_init(struct pcmcia_socket *sock)
{
return 0;
}
/*
* This callback should remove power on the socket, disable IRQs from
* the card, turn off status interrupts, and disable the PCMCIA bus.
*
* Hardware cannot do that.
*/
static int bcm63xx_pcmcia_suspend(struct pcmcia_socket *sock)
{
return 0;
}
/*
* Implements the set_socket() operation for the in-kernel PCMCIA
* service (formerly SS_SetSocket in Card Services). We more or
* less punt all of this work and let the kernel handle the details
* of power configuration, reset, &c. We also record the value of
* `state' in order to regurgitate it to the PCMCIA core later.
*/
static int bcm63xx_pcmcia_set_socket(struct pcmcia_socket *sock,
socket_state_t *state)
{
struct bcm63xx_pcmcia_socket *skt;
unsigned long flags;
u32 val;
skt = sock->driver_data;
spin_lock_irqsave(&skt->lock, flags);
/* note: hardware cannot control socket power, so we will
* always report SS_POWERON */
/* apply socket reset */
val = pcmcia_readl(skt, PCMCIA_C1_REG);
if (state->flags & SS_RESET)
val |= PCMCIA_C1_RESET_MASK;
else
val &= ~PCMCIA_C1_RESET_MASK;
/* reverse reset logic for cardbus card */
if (skt->card_detected && (skt->card_type & CARD_CARDBUS))
val ^= PCMCIA_C1_RESET_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
/* keep requested state for event reporting */
skt->requested_state = *state;
spin_unlock_irqrestore(&skt->lock, flags);
return 0;
}
/*
* identity cardtype from VS[12] input, CD[12] input while only VS2 is
* floating, and CD[12] input while only VS1 is floating
*/
enum {
IN_VS1 = (1 << 0),
IN_VS2 = (1 << 1),
IN_CD1_VS2H = (1 << 2),
IN_CD2_VS2H = (1 << 3),
IN_CD1_VS1H = (1 << 4),
IN_CD2_VS1H = (1 << 5),
};
static const u8 vscd_to_cardtype[] = {
/* VS1 float, VS2 float */
[IN_VS1 | IN_VS2] = (CARD_PCCARD | CARD_5V),
/* VS1 grounded, VS2 float */
[IN_VS2] = (CARD_PCCARD | CARD_5V | CARD_3V),
/* VS1 grounded, VS2 grounded */
[0] = (CARD_PCCARD | CARD_5V | CARD_3V | CARD_XV),
/* VS1 tied to CD1, VS2 float */
[IN_VS1 | IN_VS2 | IN_CD1_VS1H] = (CARD_CARDBUS | CARD_3V),
/* VS1 grounded, VS2 tied to CD2 */
[IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V | CARD_XV),
/* VS1 tied to CD2, VS2 grounded */
[IN_VS1 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_3V | CARD_XV | CARD_YV),
/* VS1 float, VS2 grounded */
[IN_VS1] = (CARD_PCCARD | CARD_XV),
/* VS1 float, VS2 tied to CD2 */
[IN_VS1 | IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V),
/* VS1 float, VS2 tied to CD1 */
[IN_VS1 | IN_VS2 | IN_CD1_VS2H] = (CARD_CARDBUS | CARD_XV | CARD_YV),
/* VS1 tied to CD2, VS2 float */
[IN_VS1 | IN_VS2 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_YV),
/* VS2 grounded, VS1 is tied to CD1, CD2 is grounded */
[IN_VS1 | IN_CD1_VS1H] = 0, /* ignore cardbay */
};
/*
* poll hardware to check card insertion status
*/
static unsigned int __get_socket_status(struct bcm63xx_pcmcia_socket *skt)
{
unsigned int stat;
u32 val;
stat = 0;
/* check CD for card presence */
val = pcmcia_readl(skt, PCMCIA_C1_REG);
if (!(val & PCMCIA_C1_CD1_MASK) && !(val & PCMCIA_C1_CD2_MASK))
stat |= SS_DETECT;
/* if new insertion, detect cardtype */
if ((stat & SS_DETECT) && !skt->card_detected) {
unsigned int stat = 0;
/* float VS1, float VS2 */
val |= PCMCIA_C1_VS1OE_MASK;
val |= PCMCIA_C1_VS2OE_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
/* wait for output to stabilize and read VS[12] */
udelay(10);
val = pcmcia_readl(skt, PCMCIA_C1_REG);
stat |= (val & PCMCIA_C1_VS1_MASK) ? IN_VS1 : 0;
stat |= (val & PCMCIA_C1_VS2_MASK) ? IN_VS2 : 0;
/* drive VS1 low, float VS2 */
val &= ~PCMCIA_C1_VS1OE_MASK;
val |= PCMCIA_C1_VS2OE_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
/* wait for output to stabilize and read CD[12] */
udelay(10);
val = pcmcia_readl(skt, PCMCIA_C1_REG);
stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS2H : 0;
stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS2H : 0;
/* float VS1, drive VS2 low */
val |= PCMCIA_C1_VS1OE_MASK;
val &= ~PCMCIA_C1_VS2OE_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
/* wait for output to stabilize and read CD[12] */
udelay(10);
val = pcmcia_readl(skt, PCMCIA_C1_REG);
stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS1H : 0;
stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS1H : 0;
/* guess cardtype from all this */
skt->card_type = vscd_to_cardtype[stat];
if (!skt->card_type)
dev_err(&skt->socket.dev, "unsupported card type\n");
/* drive both VS pin to 0 again */
val &= ~(PCMCIA_C1_VS1OE_MASK | PCMCIA_C1_VS2OE_MASK);
/* enable correct logic */
val &= ~(PCMCIA_C1_EN_PCMCIA_MASK | PCMCIA_C1_EN_CARDBUS_MASK);
if (skt->card_type & CARD_PCCARD)
val |= PCMCIA_C1_EN_PCMCIA_MASK;
else
val |= PCMCIA_C1_EN_CARDBUS_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
}
skt->card_detected = (stat & SS_DETECT) ? 1 : 0;
/* report card type/voltage */
if (skt->card_type & CARD_CARDBUS)
stat |= SS_CARDBUS;
if (skt->card_type & CARD_3V)
stat |= SS_3VCARD;
if (skt->card_type & CARD_XV)
stat |= SS_XVCARD;
stat |= SS_POWERON;
if (gpio_get_value(skt->pd->ready_gpio))
stat |= SS_READY;
return stat;
}
/*
* core request to get current socket status
*/
static int bcm63xx_pcmcia_get_status(struct pcmcia_socket *sock,
unsigned int *status)
{
struct bcm63xx_pcmcia_socket *skt;
skt = sock->driver_data;
spin_lock_bh(&skt->lock);
*status = __get_socket_status(skt);
spin_unlock_bh(&skt->lock);
return 0;
}
/*
* socket polling timer callback
*/
static void bcm63xx_pcmcia_poll(struct timer_list *t)
{
struct bcm63xx_pcmcia_socket *skt;
unsigned int stat, events;
skt = from_timer(skt, t, timer);
spin_lock_bh(&skt->lock);
stat = __get_socket_status(skt);
/* keep only changed bits, and mask with required one from the
* core */
events = (stat ^ skt->old_status) & skt->requested_state.csc_mask;
skt->old_status = stat;
spin_unlock_bh(&skt->lock);
if (events)
pcmcia_parse_events(&skt->socket, events);
mod_timer(&skt->timer,
jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
}
static int bcm63xx_pcmcia_set_io_map(struct pcmcia_socket *sock,
struct pccard_io_map *map)
{
/* this doesn't seem to be called by pcmcia layer if static
* mapping is used */
return 0;
}
static int bcm63xx_pcmcia_set_mem_map(struct pcmcia_socket *sock,
struct pccard_mem_map *map)
{
struct bcm63xx_pcmcia_socket *skt;
struct resource *res;
skt = sock->driver_data;
if (map->flags & MAP_ATTRIB)
res = skt->attr_res;
else
res = skt->common_res;
map->static_start = res->start + map->card_start;
return 0;
}
static struct pccard_operations bcm63xx_pcmcia_operations = {
.init = bcm63xx_pcmcia_sock_init,
.suspend = bcm63xx_pcmcia_suspend,
.get_status = bcm63xx_pcmcia_get_status,
.set_socket = bcm63xx_pcmcia_set_socket,
.set_io_map = bcm63xx_pcmcia_set_io_map,
.set_mem_map = bcm63xx_pcmcia_set_mem_map,
};
/*
* register pcmcia socket to core
*/
static int bcm63xx_drv_pcmcia_probe(struct platform_device *pdev)
{
struct bcm63xx_pcmcia_socket *skt;
struct pcmcia_socket *sock;
struct resource *res;
unsigned int regmem_size = 0, iomem_size = 0;
u32 val;
int ret;
int irq;
skt = kzalloc(sizeof(*skt), GFP_KERNEL);
if (!skt)
return -ENOMEM;
spin_lock_init(&skt->lock);
sock = &skt->socket;
sock->driver_data = skt;
/* make sure we have all resources we need */
skt->common_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
skt->attr_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
irq = platform_get_irq(pdev, 0);
skt->pd = pdev->dev.platform_data;
if (!skt->common_res || !skt->attr_res || (irq < 0) || !skt->pd) {
ret = -EINVAL;
goto err;
}
/* remap pcmcia registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regmem_size = resource_size(res);
if (!request_mem_region(res->start, regmem_size, "bcm63xx_pcmcia")) {
ret = -EINVAL;
goto err;
}
skt->reg_res = res;
skt->base = ioremap(res->start, regmem_size);
if (!skt->base) {
ret = -ENOMEM;
goto err;
}
/* remap io registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
iomem_size = resource_size(res);
skt->io_base = ioremap(res->start, iomem_size);
if (!skt->io_base) {
ret = -ENOMEM;
goto err;
}
/* resources are static */
sock->resource_ops = &pccard_static_ops;
sock->ops = &bcm63xx_pcmcia_operations;
sock->owner = THIS_MODULE;
sock->dev.parent = &pdev->dev;
sock->features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
sock->io_offset = (unsigned long)skt->io_base;
sock->pci_irq = irq;
#ifdef CONFIG_CARDBUS
sock->cb_dev = bcm63xx_cb_dev;
if (bcm63xx_cb_dev)
sock->features |= SS_CAP_CARDBUS;
#endif
/* assume common & attribute memory have the same size */
sock->map_size = resource_size(skt->common_res);
/* initialize polling timer */
timer_setup(&skt->timer, bcm63xx_pcmcia_poll, 0);
/* initialize pcmcia control register, drive VS[12] to 0,
* leave CB IDSEL to the old value since it is set by the PCI
* layer */
val = pcmcia_readl(skt, PCMCIA_C1_REG);
val &= PCMCIA_C1_CBIDSEL_MASK;
val |= PCMCIA_C1_EN_PCMCIA_GPIO_MASK;
pcmcia_writel(skt, val, PCMCIA_C1_REG);
/*
* Hardware has only one set of timings registers, not one for
* each memory access type, so we configure them for the
* slowest one: attribute memory.
*/
val = PCMCIA_C2_DATA16_MASK;
val |= 10 << PCMCIA_C2_RWCOUNT_SHIFT;
val |= 6 << PCMCIA_C2_INACTIVE_SHIFT;
val |= 3 << PCMCIA_C2_SETUP_SHIFT;
val |= 3 << PCMCIA_C2_HOLD_SHIFT;
pcmcia_writel(skt, val, PCMCIA_C2_REG);
ret = pcmcia_register_socket(sock);
if (ret)
goto err;
/* start polling socket */
mod_timer(&skt->timer,
jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
platform_set_drvdata(pdev, skt);
return 0;
err:
if (skt->io_base)
iounmap(skt->io_base);
if (skt->base)
iounmap(skt->base);
if (skt->reg_res)
release_mem_region(skt->reg_res->start, regmem_size);
kfree(skt);
return ret;
}
static int bcm63xx_drv_pcmcia_remove(struct platform_device *pdev)
{
struct bcm63xx_pcmcia_socket *skt;
struct resource *res;
skt = platform_get_drvdata(pdev);
timer_shutdown_sync(&skt->timer);
iounmap(skt->base);
iounmap(skt->io_base);
res = skt->reg_res;
release_mem_region(res->start, resource_size(res));
kfree(skt);
return 0;
}
struct platform_driver bcm63xx_pcmcia_driver = {
.probe = bcm63xx_drv_pcmcia_probe,
.remove = bcm63xx_drv_pcmcia_remove,
.driver = {
.name = "bcm63xx_pcmcia",
.owner = THIS_MODULE,
},
};
#ifdef CONFIG_CARDBUS
static int bcm63xx_cb_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
/* keep pci device */
bcm63xx_cb_dev = dev;
return platform_driver_register(&bcm63xx_pcmcia_driver);
}
static void bcm63xx_cb_exit(struct pci_dev *dev)
{
platform_driver_unregister(&bcm63xx_pcmcia_driver);
bcm63xx_cb_dev = NULL;
}
static const struct pci_device_id bcm63xx_cb_table[] = {
{
.vendor = PCI_VENDOR_ID_BROADCOM,
.device = BCM6348_CPU_ID,
.subvendor = PCI_VENDOR_ID_BROADCOM,
.subdevice = PCI_ANY_ID,
.class = PCI_CLASS_BRIDGE_CARDBUS << 8,
.class_mask = ~0,
},
{
.vendor = PCI_VENDOR_ID_BROADCOM,
.device = BCM6358_CPU_ID,
.subvendor = PCI_VENDOR_ID_BROADCOM,
.subdevice = PCI_ANY_ID,
.class = PCI_CLASS_BRIDGE_CARDBUS << 8,
.class_mask = ~0,
},
{ },
};
MODULE_DEVICE_TABLE(pci, bcm63xx_cb_table);
static struct pci_driver bcm63xx_cardbus_driver = {
.name = "bcm63xx_cardbus",
.id_table = bcm63xx_cb_table,
.probe = bcm63xx_cb_probe,
.remove = bcm63xx_cb_exit,
};
#endif
/*
* if cardbus support is enabled, register our platform device after
* our fake cardbus bridge has been registered
*/
static int __init bcm63xx_pcmcia_init(void)
{
#ifdef CONFIG_CARDBUS
return pci_register_driver(&bcm63xx_cardbus_driver);
#else
return platform_driver_register(&bcm63xx_pcmcia_driver);
#endif
}
static void __exit bcm63xx_pcmcia_exit(void)
{
#ifdef CONFIG_CARDBUS
return pci_unregister_driver(&bcm63xx_cardbus_driver);
#else
platform_driver_unregister(&bcm63xx_pcmcia_driver);
#endif
}
module_init(bcm63xx_pcmcia_init);
module_exit(bcm63xx_pcmcia_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Maxime Bizon <[email protected]>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: bcm63xx Socket Controller");
| linux-master | drivers/pcmcia/bcm63xx_pcmcia.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2007 PA Semi, Inc
*
* Maintained by: Olof Johansson <[email protected]>
*
* Based on drivers/pcmcia/omap_cf.c
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
static const char driver_name[] = "electra-cf";
struct electra_cf_socket {
struct pcmcia_socket socket;
struct timer_list timer;
unsigned present:1;
unsigned active:1;
struct platform_device *ofdev;
unsigned long mem_phys;
void __iomem *mem_base;
unsigned long mem_size;
void __iomem *io_virt;
unsigned int io_base;
unsigned int io_size;
u_int irq;
struct resource iomem;
void __iomem *gpio_base;
int gpio_detect;
int gpio_vsense;
int gpio_3v;
int gpio_5v;
};
#define POLL_INTERVAL (2 * HZ)
static int electra_cf_present(struct electra_cf_socket *cf)
{
unsigned int gpio;
gpio = in_le32(cf->gpio_base+0x40);
return !(gpio & (1 << cf->gpio_detect));
}
static int electra_cf_ss_init(struct pcmcia_socket *s)
{
return 0;
}
/* the timer is primarily to kick this socket's pccardd */
static void electra_cf_timer(struct timer_list *t)
{
struct electra_cf_socket *cf = from_timer(cf, t, timer);
int present = electra_cf_present(cf);
if (present != cf->present) {
cf->present = present;
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
static irqreturn_t electra_cf_irq(int irq, void *_cf)
{
struct electra_cf_socket *cf = _cf;
electra_cf_timer(&cf->timer);
return IRQ_HANDLED;
}
static int electra_cf_get_status(struct pcmcia_socket *s, u_int *sp)
{
struct electra_cf_socket *cf;
if (!sp)
return -EINVAL;
cf = container_of(s, struct electra_cf_socket, socket);
/* NOTE CF is always 3VCARD */
if (electra_cf_present(cf)) {
*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
s->pci_irq = cf->irq;
} else
*sp = 0;
return 0;
}
static int electra_cf_set_socket(struct pcmcia_socket *sock,
struct socket_state_t *s)
{
unsigned int gpio;
unsigned int vcc;
struct electra_cf_socket *cf;
cf = container_of(sock, struct electra_cf_socket, socket);
/* "reset" means no power in our case */
vcc = (s->flags & SS_RESET) ? 0 : s->Vcc;
switch (vcc) {
case 0:
gpio = 0;
break;
case 33:
gpio = (1 << cf->gpio_3v);
break;
case 5:
gpio = (1 << cf->gpio_5v);
break;
default:
return -EINVAL;
}
gpio |= 1 << (cf->gpio_3v + 16); /* enwr */
gpio |= 1 << (cf->gpio_5v + 16); /* enwr */
out_le32(cf->gpio_base+0x90, gpio);
pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n",
driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);
return 0;
}
static int electra_cf_set_io_map(struct pcmcia_socket *s,
struct pccard_io_map *io)
{
return 0;
}
static int electra_cf_set_mem_map(struct pcmcia_socket *s,
struct pccard_mem_map *map)
{
struct electra_cf_socket *cf;
if (map->card_start)
return -EINVAL;
cf = container_of(s, struct electra_cf_socket, socket);
map->static_start = cf->mem_phys;
map->flags &= MAP_ACTIVE|MAP_ATTRIB;
if (!(map->flags & MAP_ATTRIB))
map->static_start += 0x800;
return 0;
}
static struct pccard_operations electra_cf_ops = {
.init = electra_cf_ss_init,
.get_status = electra_cf_get_status,
.set_socket = electra_cf_set_socket,
.set_io_map = electra_cf_set_io_map,
.set_mem_map = electra_cf_set_mem_map,
};
static int electra_cf_probe(struct platform_device *ofdev)
{
struct device *device = &ofdev->dev;
struct device_node *np = ofdev->dev.of_node;
struct electra_cf_socket *cf;
struct resource mem, io;
int status = -ENOMEM;
const unsigned int *prop;
int err;
err = of_address_to_resource(np, 0, &mem);
if (err)
return -EINVAL;
err = of_address_to_resource(np, 1, &io);
if (err)
return -EINVAL;
cf = kzalloc(sizeof(*cf), GFP_KERNEL);
if (!cf)
return -ENOMEM;
timer_setup(&cf->timer, electra_cf_timer, 0);
cf->irq = 0;
cf->ofdev = ofdev;
cf->mem_phys = mem.start;
cf->mem_size = PAGE_ALIGN(resource_size(&mem));
cf->mem_base = ioremap(cf->mem_phys, cf->mem_size);
if (!cf->mem_base)
goto out_free_cf;
cf->io_size = PAGE_ALIGN(resource_size(&io));
cf->io_virt = ioremap_phb(io.start, cf->io_size);
if (!cf->io_virt)
goto out_unmap_mem;
cf->gpio_base = ioremap(0xfc103000, 0x1000);
if (!cf->gpio_base)
goto out_unmap_virt;
dev_set_drvdata(device, cf);
cf->io_base = (unsigned long)cf->io_virt - VMALLOC_END;
cf->iomem.start = (unsigned long)cf->mem_base;
cf->iomem.end = (unsigned long)cf->mem_base + (mem.end - mem.start);
cf->iomem.flags = IORESOURCE_MEM;
cf->irq = irq_of_parse_and_map(np, 0);
status = request_irq(cf->irq, electra_cf_irq, IRQF_SHARED,
driver_name, cf);
if (status < 0) {
dev_err(device, "request_irq failed\n");
goto fail1;
}
cf->socket.pci_irq = cf->irq;
status = -EINVAL;
prop = of_get_property(np, "card-detect-gpio", NULL);
if (!prop)
goto fail1;
cf->gpio_detect = *prop;
prop = of_get_property(np, "card-vsense-gpio", NULL);
if (!prop)
goto fail1;
cf->gpio_vsense = *prop;
prop = of_get_property(np, "card-3v-gpio", NULL);
if (!prop)
goto fail1;
cf->gpio_3v = *prop;
prop = of_get_property(np, "card-5v-gpio", NULL);
if (!prop)
goto fail1;
cf->gpio_5v = *prop;
cf->socket.io_offset = cf->io_base;
/* reserve chip-select regions */
if (!request_mem_region(cf->mem_phys, cf->mem_size, driver_name)) {
status = -ENXIO;
dev_err(device, "Can't claim memory region\n");
goto fail1;
}
if (!request_region(cf->io_base, cf->io_size, driver_name)) {
status = -ENXIO;
dev_err(device, "Can't claim I/O region\n");
goto fail2;
}
cf->socket.owner = THIS_MODULE;
cf->socket.dev.parent = &ofdev->dev;
cf->socket.ops = &electra_cf_ops;
cf->socket.resource_ops = &pccard_static_ops;
cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP |
SS_CAP_MEM_ALIGN;
cf->socket.map_size = 0x800;
status = pcmcia_register_socket(&cf->socket);
if (status < 0) {
dev_err(device, "pcmcia_register_socket failed\n");
goto fail3;
}
dev_info(device, "at mem 0x%lx io 0x%llx irq %d\n",
cf->mem_phys, io.start, cf->irq);
cf->active = 1;
electra_cf_timer(&cf->timer);
return 0;
fail3:
release_region(cf->io_base, cf->io_size);
fail2:
release_mem_region(cf->mem_phys, cf->mem_size);
fail1:
if (cf->irq)
free_irq(cf->irq, cf);
iounmap(cf->gpio_base);
out_unmap_virt:
device_init_wakeup(&ofdev->dev, 0);
iounmap(cf->io_virt);
out_unmap_mem:
iounmap(cf->mem_base);
out_free_cf:
kfree(cf);
return status;
}
static int electra_cf_remove(struct platform_device *ofdev)
{
struct device *device = &ofdev->dev;
struct electra_cf_socket *cf;
cf = dev_get_drvdata(device);
cf->active = 0;
pcmcia_unregister_socket(&cf->socket);
free_irq(cf->irq, cf);
timer_shutdown_sync(&cf->timer);
iounmap(cf->io_virt);
iounmap(cf->mem_base);
iounmap(cf->gpio_base);
release_mem_region(cf->mem_phys, cf->mem_size);
release_region(cf->io_base, cf->io_size);
kfree(cf);
return 0;
}
static const struct of_device_id electra_cf_match[] = {
{
.compatible = "electra-cf",
},
{},
};
MODULE_DEVICE_TABLE(of, electra_cf_match);
static struct platform_driver electra_cf_driver = {
.driver = {
.name = driver_name,
.of_match_table = electra_cf_match,
},
.probe = electra_cf_probe,
.remove = electra_cf_remove,
};
module_platform_driver(electra_cf_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Olof Johansson <[email protected]>");
MODULE_DESCRIPTION("PA Semi Electra CF driver");
| linux-master | drivers/pcmcia/electra_cf.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* PCMCIA socket code for the MyCable XXS1500 system.
*
* Copyright (c) 2009 Manuel Lauss <[email protected]>
*
*/
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/resource.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include <asm/irq.h>
#include <asm/mach-au1x00/au1000.h>
#define MEM_MAP_SIZE 0x400000
#define IO_MAP_SIZE 0x1000
/*
* 3.3V cards only; all interfacing is done via gpios:
*
* 0/1: carddetect (00 = card present, xx = huh)
* 4: card irq
* 204: reset (high-act)
* 205: buffer enable (low-act)
* 208/209: card voltage key (00,01,10,11)
* 210: battwarn
* 211: batdead
* 214: power (low-act)
*/
#define GPIO_CDA 0
#define GPIO_CDB 1
#define GPIO_CARDIRQ 4
#define GPIO_RESET 204
#define GPIO_OUTEN 205
#define GPIO_VSL 208
#define GPIO_VSH 209
#define GPIO_BATTDEAD 210
#define GPIO_BATTWARN 211
#define GPIO_POWER 214
struct xxs1500_pcmcia_sock {
struct pcmcia_socket socket;
void *virt_io;
phys_addr_t phys_io;
phys_addr_t phys_attr;
phys_addr_t phys_mem;
/* previous flags for set_socket() */
unsigned int old_flags;
};
#define to_xxs_socket(x) container_of(x, struct xxs1500_pcmcia_sock, socket)
static irqreturn_t cdirq(int irq, void *data)
{
struct xxs1500_pcmcia_sock *sock = data;
pcmcia_parse_events(&sock->socket, SS_DETECT);
return IRQ_HANDLED;
}
static int xxs1500_pcmcia_configure(struct pcmcia_socket *skt,
struct socket_state_t *state)
{
struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
unsigned int changed;
/* power control */
switch (state->Vcc) {
case 0:
gpio_set_value(GPIO_POWER, 1); /* power off */
break;
case 33:
gpio_set_value(GPIO_POWER, 0); /* power on */
break;
case 50:
default:
return -EINVAL;
}
changed = state->flags ^ sock->old_flags;
if (changed & SS_RESET) {
if (state->flags & SS_RESET) {
gpio_set_value(GPIO_RESET, 1); /* assert reset */
gpio_set_value(GPIO_OUTEN, 1); /* buffers off */
} else {
gpio_set_value(GPIO_RESET, 0); /* deassert reset */
gpio_set_value(GPIO_OUTEN, 0); /* buffers on */
msleep(500);
}
}
sock->old_flags = state->flags;
return 0;
}
static int xxs1500_pcmcia_get_status(struct pcmcia_socket *skt,
unsigned int *value)
{
unsigned int status;
int i;
status = 0;
/* check carddetects: GPIO[0:1] must both be low */
if (!gpio_get_value(GPIO_CDA) && !gpio_get_value(GPIO_CDB))
status |= SS_DETECT;
/* determine card voltage: GPIO[208:209] binary value */
i = (!!gpio_get_value(GPIO_VSL)) | ((!!gpio_get_value(GPIO_VSH)) << 1);
switch (i) {
case 0:
case 1:
case 2:
status |= SS_3VCARD; /* 3V card */
break;
case 3: /* 5V card, unsupported */
default:
status |= SS_XVCARD; /* treated as unsupported in core */
}
/* GPIO214: low active power switch */
status |= gpio_get_value(GPIO_POWER) ? 0 : SS_POWERON;
/* GPIO204: high-active reset line */
status |= gpio_get_value(GPIO_RESET) ? SS_RESET : SS_READY;
/* other stuff */
status |= gpio_get_value(GPIO_BATTDEAD) ? 0 : SS_BATDEAD;
status |= gpio_get_value(GPIO_BATTWARN) ? 0 : SS_BATWARN;
*value = status;
return 0;
}
static int xxs1500_pcmcia_sock_init(struct pcmcia_socket *skt)
{
gpio_direction_input(GPIO_CDA);
gpio_direction_input(GPIO_CDB);
gpio_direction_input(GPIO_VSL);
gpio_direction_input(GPIO_VSH);
gpio_direction_input(GPIO_BATTDEAD);
gpio_direction_input(GPIO_BATTWARN);
gpio_direction_output(GPIO_RESET, 1); /* assert reset */
gpio_direction_output(GPIO_OUTEN, 1); /* disable buffers */
gpio_direction_output(GPIO_POWER, 1); /* power off */
return 0;
}
static int xxs1500_pcmcia_sock_suspend(struct pcmcia_socket *skt)
{
return 0;
}
static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt,
struct pccard_io_map *map)
{
struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
map->start = (u32)sock->virt_io;
map->stop = map->start + IO_MAP_SIZE;
return 0;
}
static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt,
struct pccard_mem_map *map)
{
struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
if (map->flags & MAP_ATTRIB)
map->static_start = sock->phys_attr + map->card_start;
else
map->static_start = sock->phys_mem + map->card_start;
return 0;
}
static struct pccard_operations xxs1500_pcmcia_operations = {
.init = xxs1500_pcmcia_sock_init,
.suspend = xxs1500_pcmcia_sock_suspend,
.get_status = xxs1500_pcmcia_get_status,
.set_socket = xxs1500_pcmcia_configure,
.set_io_map = au1x00_pcmcia_set_io_map,
.set_mem_map = au1x00_pcmcia_set_mem_map,
};
static int xxs1500_pcmcia_probe(struct platform_device *pdev)
{
struct xxs1500_pcmcia_sock *sock;
struct resource *r;
int ret, irq;
sock = kzalloc(sizeof(struct xxs1500_pcmcia_sock), GFP_KERNEL);
if (!sock)
return -ENOMEM;
ret = -ENODEV;
/* 36bit PCMCIA Attribute area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr");
if (!r) {
dev_err(&pdev->dev, "missing 'pcmcia-attr' resource!\n");
goto out0;
}
sock->phys_attr = r->start;
/* 36bit PCMCIA Memory area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem");
if (!r) {
dev_err(&pdev->dev, "missing 'pcmcia-mem' resource!\n");
goto out0;
}
sock->phys_mem = r->start;
/* 36bit PCMCIA IO area address */
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io");
if (!r) {
dev_err(&pdev->dev, "missing 'pcmcia-io' resource!\n");
goto out0;
}
sock->phys_io = r->start;
/*
* PCMCIA client drivers use the inb/outb macros to access
* the IO registers. Since mips_io_port_base is added
* to the access address of the mips implementation of
* inb/outb, we need to subtract it here because we want
* to access the I/O or MEM address directly, without
* going through this "mips_io_port_base" mechanism.
*/
sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) -
mips_io_port_base);
if (!sock->virt_io) {
dev_err(&pdev->dev, "cannot remap IO area\n");
ret = -ENOMEM;
goto out0;
}
sock->socket.ops = &xxs1500_pcmcia_operations;
sock->socket.owner = THIS_MODULE;
sock->socket.pci_irq = gpio_to_irq(GPIO_CARDIRQ);
sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
sock->socket.map_size = MEM_MAP_SIZE;
sock->socket.io_offset = (unsigned long)sock->virt_io;
sock->socket.dev.parent = &pdev->dev;
sock->socket.resource_ops = &pccard_static_ops;
platform_set_drvdata(pdev, sock);
/* setup carddetect irq: use one of the 2 GPIOs as an
* edge detector.
*/
irq = gpio_to_irq(GPIO_CDA);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
ret = request_irq(irq, cdirq, 0, "pcmcia_carddetect", sock);
if (ret) {
dev_err(&pdev->dev, "cannot setup cd irq\n");
goto out1;
}
ret = pcmcia_register_socket(&sock->socket);
if (ret) {
dev_err(&pdev->dev, "failed to register\n");
goto out2;
}
printk(KERN_INFO "MyCable XXS1500 PCMCIA socket services\n");
return 0;
out2:
free_irq(gpio_to_irq(GPIO_CDA), sock);
out1:
iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
out0:
kfree(sock);
return ret;
}
static int xxs1500_pcmcia_remove(struct platform_device *pdev)
{
struct xxs1500_pcmcia_sock *sock = platform_get_drvdata(pdev);
pcmcia_unregister_socket(&sock->socket);
free_irq(gpio_to_irq(GPIO_CDA), sock);
iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
kfree(sock);
return 0;
}
static struct platform_driver xxs1500_pcmcia_socket_driver = {
.driver = {
.name = "xxs1500_pcmcia",
},
.probe = xxs1500_pcmcia_probe,
.remove = xxs1500_pcmcia_remove,
};
module_platform_driver(xxs1500_pcmcia_socket_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("PCMCIA Socket Services for MyCable XXS1500 systems");
MODULE_AUTHOR("Manuel Lauss");
| linux-master | drivers/pcmcia/xxs1500_ss.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for Intel I82092AA PCI-PCMCIA bridge.
*
* (C) 2001 Red Hat, Inc.
*
* Author: Arjan Van De Ven <[email protected]>
* Loosly based on i82365.c from the pcmcia-cs package
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <pcmcia/ss.h>
#include <linux/io.h>
#include "i82092aa.h"
#include "i82365.h"
MODULE_LICENSE("GPL");
/* PCI core routines */
static const struct pci_device_id i82092aa_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82092AA_0) },
{ }
};
MODULE_DEVICE_TABLE(pci, i82092aa_pci_ids);
static struct pci_driver i82092aa_pci_driver = {
.name = "i82092aa",
.id_table = i82092aa_pci_ids,
.probe = i82092aa_pci_probe,
.remove = i82092aa_pci_remove,
};
/* the pccard structure and its functions */
static struct pccard_operations i82092aa_operations = {
.init = i82092aa_init,
.get_status = i82092aa_get_status,
.set_socket = i82092aa_set_socket,
.set_io_map = i82092aa_set_io_map,
.set_mem_map = i82092aa_set_mem_map,
};
/* The card can do up to 4 sockets, allocate a structure for each of them */
struct socket_info {
int number;
int card_state;
/* 0 = no socket,
* 1 = empty socket,
* 2 = card but not initialized,
* 3 = operational card
*/
unsigned int io_base; /* base io address of the socket */
struct pcmcia_socket socket;
struct pci_dev *dev; /* The PCI device for the socket */
};
#define MAX_SOCKETS 4
static struct socket_info sockets[MAX_SOCKETS];
static int socket_count; /* shortcut */
static int i82092aa_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
unsigned char configbyte;
int i, ret;
ret = pci_enable_device(dev);
if (ret)
return ret;
/* PCI Configuration Control */
pci_read_config_byte(dev, 0x40, &configbyte);
switch (configbyte&6) {
case 0:
socket_count = 2;
break;
case 2:
socket_count = 1;
break;
case 4:
case 6:
socket_count = 4;
break;
default:
dev_err(&dev->dev,
"Oops, you did something we didn't think of.\n");
ret = -EIO;
goto err_out_disable;
}
dev_info(&dev->dev, "configured as a %d socket device.\n",
socket_count);
if (!request_region(pci_resource_start(dev, 0), 2, "i82092aa")) {
ret = -EBUSY;
goto err_out_disable;
}
for (i = 0; i < socket_count; i++) {
sockets[i].card_state = 1; /* 1 = present but empty */
sockets[i].io_base = pci_resource_start(dev, 0);
sockets[i].dev = dev;
sockets[i].socket.features |= SS_CAP_PCCARD;
sockets[i].socket.map_size = 0x1000;
sockets[i].socket.irq_mask = 0;
sockets[i].socket.pci_irq = dev->irq;
sockets[i].socket.cb_dev = dev;
sockets[i].socket.owner = THIS_MODULE;
sockets[i].number = i;
if (card_present(i)) {
sockets[i].card_state = 3;
dev_dbg(&dev->dev, "slot %i is occupied\n", i);
} else {
dev_dbg(&dev->dev, "slot %i is vacant\n", i);
}
}
/* Now, specifiy that all interrupts are to be done as PCI interrupts
* bitmask, one bit per event, 1 = PCI interrupt, 0 = ISA interrupt
*/
configbyte = 0xFF;
/* PCI Interrupt Routing Register */
pci_write_config_byte(dev, 0x50, configbyte);
/* Register the interrupt handler */
dev_dbg(&dev->dev, "Requesting interrupt %i\n", dev->irq);
ret = request_irq(dev->irq, i82092aa_interrupt, IRQF_SHARED,
"i82092aa", i82092aa_interrupt);
if (ret) {
dev_err(&dev->dev, "Failed to register IRQ %d, aborting\n",
dev->irq);
goto err_out_free_res;
}
for (i = 0; i < socket_count; i++) {
sockets[i].socket.dev.parent = &dev->dev;
sockets[i].socket.ops = &i82092aa_operations;
sockets[i].socket.resource_ops = &pccard_nonstatic_ops;
ret = pcmcia_register_socket(&sockets[i].socket);
if (ret)
goto err_out_free_sockets;
}
return 0;
err_out_free_sockets:
if (i) {
for (i--; i >= 0; i--)
pcmcia_unregister_socket(&sockets[i].socket);
}
free_irq(dev->irq, i82092aa_interrupt);
err_out_free_res:
release_region(pci_resource_start(dev, 0), 2);
err_out_disable:
pci_disable_device(dev);
return ret;
}
static void i82092aa_pci_remove(struct pci_dev *dev)
{
int i;
free_irq(dev->irq, i82092aa_interrupt);
for (i = 0; i < socket_count; i++)
pcmcia_unregister_socket(&sockets[i].socket);
}
static DEFINE_SPINLOCK(port_lock);
/* basic value read/write functions */
static unsigned char indirect_read(int socket, unsigned short reg)
{
unsigned short int port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg += socket * 0x40;
port = sockets[socket].io_base;
outb(reg, port);
val = inb(port+1);
spin_unlock_irqrestore(&port_lock, flags);
return val;
}
static void indirect_write(int socket, unsigned short reg, unsigned char value)
{
unsigned short int port;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket * 0x40;
port = sockets[socket].io_base;
outb(reg, port);
outb(value, port+1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_setbit(int socket, unsigned short reg, unsigned char mask)
{
unsigned short int port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket * 0x40;
port = sockets[socket].io_base;
outb(reg, port);
val = inb(port+1);
val |= mask;
outb(reg, port);
outb(val, port+1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_resetbit(int socket,
unsigned short reg, unsigned char mask)
{
unsigned short int port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket * 0x40;
port = sockets[socket].io_base;
outb(reg, port);
val = inb(port+1);
val &= ~mask;
outb(reg, port);
outb(val, port+1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_write16(int socket,
unsigned short reg, unsigned short value)
{
unsigned short int port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket * 0x40;
port = sockets[socket].io_base;
outb(reg, port);
val = value & 255;
outb(val, port+1);
reg++;
outb(reg, port);
val = value>>8;
outb(val, port+1);
spin_unlock_irqrestore(&port_lock, flags);
}
/* simple helper functions */
/* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
static int cycle_time = 120;
static int to_cycles(int ns)
{
if (cycle_time != 0)
return ns/cycle_time;
else
return 0;
}
/* Interrupt handler functionality */
static irqreturn_t i82092aa_interrupt(int irq, void *dev)
{
int i;
int loopcount = 0;
int handled = 0;
unsigned int events, active = 0;
while (1) {
loopcount++;
if (loopcount > 20) {
pr_err("i82092aa: infinite eventloop in interrupt\n");
break;
}
active = 0;
for (i = 0; i < socket_count; i++) {
int csc;
/* Inactive socket, should not happen */
if (sockets[i].card_state == 0)
continue;
/* card status change register */
csc = indirect_read(i, I365_CSC);
if (csc == 0) /* no events on this socket */
continue;
handled = 1;
events = 0;
if (csc & I365_CSC_DETECT) {
events |= SS_DETECT;
dev_info(&sockets[i].dev->dev,
"Card detected in socket %i!\n", i);
}
if (indirect_read(i, I365_INTCTL) & I365_PC_IOCARD) {
/* For IO/CARDS, bit 0 means "read the card" */
if (csc & I365_CSC_STSCHG)
events |= SS_STSCHG;
} else {
/* Check for battery/ready events */
if (csc & I365_CSC_BVD1)
events |= SS_BATDEAD;
if (csc & I365_CSC_BVD2)
events |= SS_BATWARN;
if (csc & I365_CSC_READY)
events |= SS_READY;
}
if (events)
pcmcia_parse_events(&sockets[i].socket, events);
active |= events;
}
if (active == 0) /* no more events to handle */
break;
}
return IRQ_RETVAL(handled);
}
/* socket functions */
static int card_present(int socketno)
{
unsigned int val;
if ((socketno < 0) || (socketno >= MAX_SOCKETS))
return 0;
if (sockets[socketno].io_base == 0)
return 0;
val = indirect_read(socketno, 1); /* Interface status register */
if ((val&12) == 12)
return 1;
return 0;
}
static void set_bridge_state(int sock)
{
indirect_write(sock, I365_GBLCTL, 0x00);
indirect_write(sock, I365_GENCTL, 0x00);
indirect_setbit(sock, I365_INTCTL, 0x08);
}
static int i82092aa_init(struct pcmcia_socket *sock)
{
int i;
struct resource res = { .start = 0, .end = 0x0fff };
pccard_io_map io = { 0, 0, 0, 0, 1 };
pccard_mem_map mem = { .res = &res, };
for (i = 0; i < 2; i++) {
io.map = i;
i82092aa_set_io_map(sock, &io);
}
for (i = 0; i < 5; i++) {
mem.map = i;
i82092aa_set_mem_map(sock, &mem);
}
return 0;
}
static int i82092aa_get_status(struct pcmcia_socket *socket, u_int *value)
{
unsigned int sock = container_of(socket,
struct socket_info, socket)->number;
unsigned int status;
/* Interface Status Register */
status = indirect_read(sock, I365_STATUS);
*value = 0;
if ((status & I365_CS_DETECT) == I365_CS_DETECT)
*value |= SS_DETECT;
/* IO cards have a different meaning of bits 0,1 */
/* Also notice the inverse-logic on the bits */
if (indirect_read(sock, I365_INTCTL) & I365_PC_IOCARD) {
/* IO card */
if (!(status & I365_CS_STSCHG))
*value |= SS_STSCHG;
} else { /* non I/O card */
if (!(status & I365_CS_BVD1))
*value |= SS_BATDEAD;
if (!(status & I365_CS_BVD2))
*value |= SS_BATWARN;
}
if (status & I365_CS_WRPROT)
(*value) |= SS_WRPROT; /* card is write protected */
if (status & I365_CS_READY)
(*value) |= SS_READY; /* card is not busy */
if (status & I365_CS_POWERON)
(*value) |= SS_POWERON; /* power is applied to the card */
return 0;
}
static int i82092aa_set_socket(struct pcmcia_socket *socket,
socket_state_t *state)
{
struct socket_info *sock_info = container_of(socket, struct socket_info,
socket);
unsigned int sock = sock_info->number;
unsigned char reg;
/* First, set the global controller options */
set_bridge_state(sock);
/* Values for the IGENC register */
reg = 0;
/* The reset bit has "inverse" logic */
if (!(state->flags & SS_RESET))
reg = reg | I365_PC_RESET;
if (state->flags & SS_IOCARD)
reg = reg | I365_PC_IOCARD;
/* IGENC, Interrupt and General Control Register */
indirect_write(sock, I365_INTCTL, reg);
/* Power registers */
reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
if (state->flags & SS_PWR_AUTO) {
dev_info(&sock_info->dev->dev, "Auto power\n");
reg |= I365_PWR_AUTO; /* automatic power mngmnt */
}
if (state->flags & SS_OUTPUT_ENA) {
dev_info(&sock_info->dev->dev, "Power Enabled\n");
reg |= I365_PWR_OUT; /* enable power */
}
switch (state->Vcc) {
case 0:
break;
case 50:
dev_info(&sock_info->dev->dev,
"setting voltage to Vcc to 5V on socket %i\n",
sock);
reg |= I365_VCC_5V;
break;
default:
dev_err(&sock_info->dev->dev,
"%s called with invalid VCC power value: %i",
__func__, state->Vcc);
return -EINVAL;
}
switch (state->Vpp) {
case 0:
dev_info(&sock_info->dev->dev,
"not setting Vpp on socket %i\n", sock);
break;
case 50:
dev_info(&sock_info->dev->dev,
"setting Vpp to 5.0 for socket %i\n", sock);
reg |= I365_VPP1_5V | I365_VPP2_5V;
break;
case 120:
dev_info(&sock_info->dev->dev, "setting Vpp to 12.0\n");
reg |= I365_VPP1_12V | I365_VPP2_12V;
break;
default:
dev_err(&sock_info->dev->dev,
"%s called with invalid VPP power value: %i",
__func__, state->Vcc);
return -EINVAL;
}
if (reg != indirect_read(sock, I365_POWER)) /* only write if changed */
indirect_write(sock, I365_POWER, reg);
/* Enable specific interrupt events */
reg = 0x00;
if (state->csc_mask & SS_DETECT)
reg |= I365_CSC_DETECT;
if (state->flags & SS_IOCARD) {
if (state->csc_mask & SS_STSCHG)
reg |= I365_CSC_STSCHG;
} else {
if (state->csc_mask & SS_BATDEAD)
reg |= I365_CSC_BVD1;
if (state->csc_mask & SS_BATWARN)
reg |= I365_CSC_BVD2;
if (state->csc_mask & SS_READY)
reg |= I365_CSC_READY;
}
/* now write the value and clear the (probably bogus) pending stuff
* by doing a dummy read
*/
indirect_write(sock, I365_CSCINT, reg);
(void)indirect_read(sock, I365_CSC);
return 0;
}
static int i82092aa_set_io_map(struct pcmcia_socket *socket,
struct pccard_io_map *io)
{
struct socket_info *sock_info = container_of(socket, struct socket_info,
socket);
unsigned int sock = sock_info->number;
unsigned char map, ioctl;
map = io->map;
/* Check error conditions */
if (map > 1)
return -EINVAL;
if ((io->start > 0xffff) || (io->stop > 0xffff)
|| (io->stop < io->start))
return -EINVAL;
/* Turn off the window before changing anything */
if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_IO(map))
indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
/* write the new values */
indirect_write16(sock, I365_IO(map)+I365_W_START, io->start);
indirect_write16(sock, I365_IO(map)+I365_W_STOP, io->stop);
ioctl = indirect_read(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map);
if (io->flags & (MAP_16BIT|MAP_AUTOSZ))
ioctl |= I365_IOCTL_16BIT(map);
indirect_write(sock, I365_IOCTL, ioctl);
/* Turn the window back on if needed */
if (io->flags & MAP_ACTIVE)
indirect_setbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
return 0;
}
static int i82092aa_set_mem_map(struct pcmcia_socket *socket,
struct pccard_mem_map *mem)
{
struct socket_info *sock_info = container_of(socket, struct socket_info,
socket);
unsigned int sock = sock_info->number;
struct pci_bus_region region;
unsigned short base, i;
unsigned char map;
pcibios_resource_to_bus(sock_info->dev->bus, ®ion, mem->res);
map = mem->map;
if (map > 4)
return -EINVAL;
if ((mem->card_start > 0x3ffffff) || (region.start > region.end) ||
(mem->speed > 1000)) {
dev_err(&sock_info->dev->dev,
"invalid mem map for socket %i: %llx to %llx with a start of %x\n",
sock,
(unsigned long long)region.start,
(unsigned long long)region.end,
mem->card_start);
return -EINVAL;
}
/* Turn off the window before changing anything */
if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
/* write the start address */
base = I365_MEM(map);
i = (region.start >> 12) & 0x0fff;
if (mem->flags & MAP_16BIT)
i |= I365_MEM_16BIT;
if (mem->flags & MAP_0WS)
i |= I365_MEM_0WS;
indirect_write16(sock, base+I365_W_START, i);
/* write the stop address */
i = (region.end >> 12) & 0x0fff;
switch (to_cycles(mem->speed)) {
case 0:
break;
case 1:
i |= I365_MEM_WS0;
break;
case 2:
i |= I365_MEM_WS1;
break;
default:
i |= I365_MEM_WS1 | I365_MEM_WS0;
break;
}
indirect_write16(sock, base+I365_W_STOP, i);
/* card start */
i = ((mem->card_start - region.start) >> 12) & 0x3fff;
if (mem->flags & MAP_WRPROT)
i |= I365_MEM_WRPROT;
if (mem->flags & MAP_ATTRIB)
i |= I365_MEM_REG;
indirect_write16(sock, base+I365_W_OFF, i);
/* Enable the window if necessary */
if (mem->flags & MAP_ACTIVE)
indirect_setbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
return 0;
}
static int __init i82092aa_module_init(void)
{
return pci_register_driver(&i82092aa_pci_driver);
}
static void __exit i82092aa_module_exit(void)
{
pci_unregister_driver(&i82092aa_pci_driver);
if (sockets[0].io_base > 0)
release_region(sockets[0].io_base, 2);
}
module_init(i82092aa_module_init);
module_exit(i82092aa_module_exit);
| linux-master | drivers/pcmcia/i82092.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* cs.c -- Kernel Card Services - core services
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <asm/irq.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"
/* Module parameters */
MODULE_AUTHOR("David Hinds <[email protected]>");
MODULE_DESCRIPTION("Linux Kernel Card Services");
MODULE_LICENSE("GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
INT_MODULE_PARM(setup_delay, 10); /* centiseconds */
INT_MODULE_PARM(resume_delay, 20); /* centiseconds */
INT_MODULE_PARM(shutdown_delay, 3); /* centiseconds */
INT_MODULE_PARM(vcc_settle, 40); /* centiseconds */
INT_MODULE_PARM(reset_time, 10); /* usecs */
INT_MODULE_PARM(unreset_delay, 10); /* centiseconds */
INT_MODULE_PARM(unreset_check, 10); /* centiseconds */
INT_MODULE_PARM(unreset_limit, 30); /* unreset_check's */
/* Access speed for attribute memory windows */
INT_MODULE_PARM(cis_speed, 300); /* ns */
socket_state_t dead_socket = {
.csc_mask = SS_DETECT,
};
EXPORT_SYMBOL(dead_socket);
/* List of all sockets, protected by a rwsem */
LIST_HEAD(pcmcia_socket_list);
EXPORT_SYMBOL(pcmcia_socket_list);
DECLARE_RWSEM(pcmcia_socket_list_rwsem);
EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt)
{
struct device *dev = get_device(&skt->dev);
if (!dev)
return NULL;
return dev_get_drvdata(dev);
}
EXPORT_SYMBOL(pcmcia_get_socket);
void pcmcia_put_socket(struct pcmcia_socket *skt)
{
put_device(&skt->dev);
}
EXPORT_SYMBOL(pcmcia_put_socket);
static void pcmcia_release_socket(struct device *dev)
{
struct pcmcia_socket *socket = dev_get_drvdata(dev);
complete(&socket->socket_released);
}
static int pccardd(void *__skt);
/**
* pcmcia_register_socket - add a new pcmcia socket device
* @socket: the &socket to register
*/
int pcmcia_register_socket(struct pcmcia_socket *socket)
{
struct task_struct *tsk;
int ret;
if (!socket || !socket->ops || !socket->dev.parent || !socket->resource_ops)
return -EINVAL;
dev_dbg(&socket->dev, "pcmcia_register_socket(0x%p)\n", socket->ops);
/* try to obtain a socket number [yes, it gets ugly if we
* register more than 2^sizeof(unsigned int) pcmcia
* sockets... but the socket number is deprecated
* anyways, so I don't care] */
down_write(&pcmcia_socket_list_rwsem);
if (list_empty(&pcmcia_socket_list))
socket->sock = 0;
else {
unsigned int found, i = 1;
struct pcmcia_socket *tmp;
do {
found = 1;
list_for_each_entry(tmp, &pcmcia_socket_list, socket_list) {
if (tmp->sock == i)
found = 0;
}
i++;
} while (!found);
socket->sock = i - 1;
}
list_add_tail(&socket->socket_list, &pcmcia_socket_list);
up_write(&pcmcia_socket_list_rwsem);
#ifndef CONFIG_CARDBUS
/*
* If we do not support Cardbus, ensure that
* the Cardbus socket capability is disabled.
*/
socket->features &= ~SS_CAP_CARDBUS;
#endif
/* set proper values in socket->dev */
dev_set_drvdata(&socket->dev, socket);
socket->dev.class = &pcmcia_socket_class;
dev_set_name(&socket->dev, "pcmcia_socket%u", socket->sock);
/* base address = 0, map = 0 */
socket->cis_mem.flags = 0;
socket->cis_mem.speed = cis_speed;
INIT_LIST_HEAD(&socket->cis_cache);
init_completion(&socket->socket_released);
init_completion(&socket->thread_done);
mutex_init(&socket->skt_mutex);
mutex_init(&socket->ops_mutex);
spin_lock_init(&socket->thread_lock);
if (socket->resource_ops->init) {
mutex_lock(&socket->ops_mutex);
ret = socket->resource_ops->init(socket);
mutex_unlock(&socket->ops_mutex);
if (ret)
goto err;
}
tsk = kthread_run(pccardd, socket, "pccardd");
if (IS_ERR(tsk)) {
ret = PTR_ERR(tsk);
goto err;
}
wait_for_completion(&socket->thread_done);
if (!socket->thread) {
dev_warn(&socket->dev,
"PCMCIA: warning: socket thread did not start\n");
return -EIO;
}
pcmcia_parse_events(socket, SS_DETECT);
/*
* Let's try to get the PCMCIA module for 16-bit PCMCIA support.
* If it fails, it doesn't matter -- we still have 32-bit CardBus
* support to offer, so this is not a failure mode.
*/
request_module_nowait("pcmcia");
return 0;
err:
down_write(&pcmcia_socket_list_rwsem);
list_del(&socket->socket_list);
up_write(&pcmcia_socket_list_rwsem);
return ret;
} /* pcmcia_register_socket */
EXPORT_SYMBOL(pcmcia_register_socket);
/**
* pcmcia_unregister_socket - remove a pcmcia socket device
* @socket: the &socket to unregister
*/
void pcmcia_unregister_socket(struct pcmcia_socket *socket)
{
if (!socket)
return;
dev_dbg(&socket->dev, "pcmcia_unregister_socket(0x%p)\n", socket->ops);
if (socket->thread)
kthread_stop(socket->thread);
/* remove from our own list */
down_write(&pcmcia_socket_list_rwsem);
list_del(&socket->socket_list);
up_write(&pcmcia_socket_list_rwsem);
/* wait for sysfs to drop all references */
if (socket->resource_ops->exit) {
mutex_lock(&socket->ops_mutex);
socket->resource_ops->exit(socket);
mutex_unlock(&socket->ops_mutex);
}
wait_for_completion(&socket->socket_released);
} /* pcmcia_unregister_socket */
EXPORT_SYMBOL(pcmcia_unregister_socket);
struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr)
{
struct pcmcia_socket *s;
down_read(&pcmcia_socket_list_rwsem);
list_for_each_entry(s, &pcmcia_socket_list, socket_list)
if (s->sock == nr) {
up_read(&pcmcia_socket_list_rwsem);
return s;
}
up_read(&pcmcia_socket_list_rwsem);
return NULL;
}
EXPORT_SYMBOL(pcmcia_get_socket_by_nr);
static int socket_reset(struct pcmcia_socket *skt)
{
int status, i;
dev_dbg(&skt->dev, "reset\n");
skt->socket.flags |= SS_OUTPUT_ENA | SS_RESET;
skt->ops->set_socket(skt, &skt->socket);
udelay((long)reset_time);
skt->socket.flags &= ~SS_RESET;
skt->ops->set_socket(skt, &skt->socket);
msleep(unreset_delay * 10);
for (i = 0; i < unreset_limit; i++) {
skt->ops->get_status(skt, &status);
if (!(status & SS_DETECT))
return -ENODEV;
if (status & SS_READY)
return 0;
msleep(unreset_check * 10);
}
dev_err(&skt->dev, "time out after reset\n");
return -ETIMEDOUT;
}
/*
* socket_setup() and socket_shutdown() are called by the main event handler
* when card insertion and removal events are received.
* socket_setup() turns on socket power and resets the socket, in two stages.
* socket_shutdown() unconfigures a socket and turns off socket power.
*/
static void socket_shutdown(struct pcmcia_socket *s)
{
int status;
dev_dbg(&s->dev, "shutdown\n");
if (s->callback)
s->callback->remove(s);
mutex_lock(&s->ops_mutex);
s->state &= SOCKET_INUSE | SOCKET_PRESENT;
msleep(shutdown_delay * 10);
s->state &= SOCKET_INUSE;
/* Blank out the socket state */
s->socket = dead_socket;
s->ops->init(s);
s->ops->set_socket(s, &s->socket);
s->lock_count = 0;
kfree(s->fake_cis);
s->fake_cis = NULL;
s->functions = 0;
/* From here on we can be sure that only we (that is, the
* pccardd thread) accesses this socket, and all (16-bit)
* PCMCIA interactions are gone. Therefore, release
* ops_mutex so that we don't get a sysfs-related lockdep
* warning.
*/
mutex_unlock(&s->ops_mutex);
#ifdef CONFIG_CARDBUS
cb_free(s);
#endif
/* give socket some time to power down */
msleep(100);
s->ops->get_status(s, &status);
if (status & SS_POWERON) {
dev_err(&s->dev,
"*** DANGER *** unable to remove socket power\n");
}
s->state &= ~SOCKET_INUSE;
}
static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
{
int status, i;
dev_dbg(&skt->dev, "setup\n");
skt->ops->get_status(skt, &status);
if (!(status & SS_DETECT))
return -ENODEV;
msleep(initial_delay * 10);
for (i = 0; i < 100; i++) {
skt->ops->get_status(skt, &status);
if (!(status & SS_DETECT))
return -ENODEV;
if (!(status & SS_PENDING))
break;
msleep(100);
}
if (status & SS_PENDING) {
dev_err(&skt->dev, "voltage interrogation timed out\n");
return -ETIMEDOUT;
}
if (status & SS_CARDBUS) {
if (!(skt->features & SS_CAP_CARDBUS)) {
dev_err(&skt->dev, "cardbus cards are not supported\n");
return -EINVAL;
}
skt->state |= SOCKET_CARDBUS;
} else
skt->state &= ~SOCKET_CARDBUS;
/*
* Decode the card voltage requirements, and apply power to the card.
*/
if (status & SS_3VCARD)
skt->socket.Vcc = skt->socket.Vpp = 33;
else if (!(status & SS_XVCARD))
skt->socket.Vcc = skt->socket.Vpp = 50;
else {
dev_err(&skt->dev, "unsupported voltage key\n");
return -EIO;
}
if (skt->power_hook)
skt->power_hook(skt, HOOK_POWER_PRE);
skt->socket.flags = 0;
skt->ops->set_socket(skt, &skt->socket);
/*
* Wait "vcc_settle" for the supply to stabilise.
*/
msleep(vcc_settle * 10);
skt->ops->get_status(skt, &status);
if (!(status & SS_POWERON)) {
dev_err(&skt->dev, "unable to apply power\n");
return -EIO;
}
status = socket_reset(skt);
if (skt->power_hook)
skt->power_hook(skt, HOOK_POWER_POST);
return status;
}
/*
* Handle card insertion. Setup the socket, reset the card,
* and then tell the rest of PCMCIA that a card is present.
*/
static int socket_insert(struct pcmcia_socket *skt)
{
int ret;
dev_dbg(&skt->dev, "insert\n");
mutex_lock(&skt->ops_mutex);
if (skt->state & SOCKET_INUSE) {
mutex_unlock(&skt->ops_mutex);
return -EINVAL;
}
skt->state |= SOCKET_INUSE;
ret = socket_setup(skt, setup_delay);
if (ret == 0) {
skt->state |= SOCKET_PRESENT;
dev_notice(&skt->dev, "pccard: %s card inserted into slot %d\n",
(skt->state & SOCKET_CARDBUS) ? "CardBus" : "PCMCIA",
skt->sock);
#ifdef CONFIG_CARDBUS
if (skt->state & SOCKET_CARDBUS) {
cb_alloc(skt);
skt->state |= SOCKET_CARDBUS_CONFIG;
}
#endif
dev_dbg(&skt->dev, "insert done\n");
mutex_unlock(&skt->ops_mutex);
if (!(skt->state & SOCKET_CARDBUS) && (skt->callback))
skt->callback->add(skt);
} else {
mutex_unlock(&skt->ops_mutex);
socket_shutdown(skt);
}
return ret;
}
static int socket_suspend(struct pcmcia_socket *skt)
{
if ((skt->state & SOCKET_SUSPEND) && !(skt->state & SOCKET_IN_RESUME))
return -EBUSY;
mutex_lock(&skt->ops_mutex);
/* store state on first suspend, but not after spurious wakeups */
if (!(skt->state & SOCKET_IN_RESUME))
skt->suspended_state = skt->state;
skt->socket = dead_socket;
skt->ops->set_socket(skt, &skt->socket);
if (skt->ops->suspend)
skt->ops->suspend(skt);
skt->state |= SOCKET_SUSPEND;
skt->state &= ~SOCKET_IN_RESUME;
mutex_unlock(&skt->ops_mutex);
return 0;
}
static int socket_early_resume(struct pcmcia_socket *skt)
{
mutex_lock(&skt->ops_mutex);
skt->socket = dead_socket;
skt->ops->init(skt);
skt->ops->set_socket(skt, &skt->socket);
if (skt->state & SOCKET_PRESENT)
skt->resume_status = socket_setup(skt, resume_delay);
skt->state |= SOCKET_IN_RESUME;
mutex_unlock(&skt->ops_mutex);
return 0;
}
static int socket_late_resume(struct pcmcia_socket *skt)
{
int ret = 0;
mutex_lock(&skt->ops_mutex);
skt->state &= ~(SOCKET_SUSPEND | SOCKET_IN_RESUME);
mutex_unlock(&skt->ops_mutex);
if (!(skt->state & SOCKET_PRESENT)) {
ret = socket_insert(skt);
if (ret == -ENODEV)
ret = 0;
return ret;
}
if (skt->resume_status) {
socket_shutdown(skt);
return 0;
}
if (skt->suspended_state != skt->state) {
dev_dbg(&skt->dev,
"suspend state 0x%x != resume state 0x%x\n",
skt->suspended_state, skt->state);
socket_shutdown(skt);
return socket_insert(skt);
}
if (!(skt->state & SOCKET_CARDBUS) && (skt->callback))
ret = skt->callback->early_resume(skt);
return ret;
}
/*
* Finalize the resume. In case of a cardbus socket, we have
* to rebind the devices as we can't be certain that it has been
* replaced, or not.
*/
static int socket_complete_resume(struct pcmcia_socket *skt)
{
int ret = 0;
#ifdef CONFIG_CARDBUS
if (skt->state & SOCKET_CARDBUS) {
/* We can't be sure the CardBus card is the same
* as the one previously inserted. Therefore, remove
* and re-add... */
cb_free(skt);
ret = cb_alloc(skt);
if (ret)
cb_free(skt);
}
#endif
return ret;
}
/*
* Resume a socket. If a card is present, verify its CIS against
* our cached copy. If they are different, the card has been
* replaced, and we need to tell the drivers.
*/
static int socket_resume(struct pcmcia_socket *skt)
{
int err;
if (!(skt->state & SOCKET_SUSPEND))
return -EBUSY;
socket_early_resume(skt);
err = socket_late_resume(skt);
if (!err)
err = socket_complete_resume(skt);
return err;
}
static void socket_remove(struct pcmcia_socket *skt)
{
dev_notice(&skt->dev, "pccard: card ejected from slot %d\n", skt->sock);
socket_shutdown(skt);
}
/*
* Process a socket card detect status change.
*
* If we don't have a card already present, delay the detect event for
* about 20ms (to be on the safe side) before reading the socket status.
*
* Some i82365-based systems send multiple SS_DETECT events during card
* insertion, and the "card present" status bit seems to bounce. This
* will probably be true with GPIO-based card detection systems after
* the product has aged.
*/
static void socket_detect_change(struct pcmcia_socket *skt)
{
if (!(skt->state & SOCKET_SUSPEND)) {
int status;
if (!(skt->state & SOCKET_PRESENT))
msleep(20);
skt->ops->get_status(skt, &status);
if ((skt->state & SOCKET_PRESENT) &&
!(status & SS_DETECT))
socket_remove(skt);
if (!(skt->state & SOCKET_PRESENT) &&
(status & SS_DETECT))
socket_insert(skt);
}
}
static int pccardd(void *__skt)
{
struct pcmcia_socket *skt = __skt;
int ret;
skt->thread = current;
skt->socket = dead_socket;
skt->ops->init(skt);
skt->ops->set_socket(skt, &skt->socket);
/* register with the device core */
ret = device_register(&skt->dev);
if (ret) {
dev_warn(&skt->dev, "PCMCIA: unable to register socket\n");
skt->thread = NULL;
complete(&skt->thread_done);
return 0;
}
ret = pccard_sysfs_add_socket(&skt->dev);
if (ret)
dev_warn(&skt->dev, "err %d adding socket attributes\n", ret);
complete(&skt->thread_done);
/* wait for userspace to catch up */
msleep(250);
set_freezable();
for (;;) {
unsigned long flags;
unsigned int events;
unsigned int sysfs_events;
spin_lock_irqsave(&skt->thread_lock, flags);
events = skt->thread_events;
skt->thread_events = 0;
sysfs_events = skt->sysfs_events;
skt->sysfs_events = 0;
spin_unlock_irqrestore(&skt->thread_lock, flags);
mutex_lock(&skt->skt_mutex);
if (events & SS_DETECT)
socket_detect_change(skt);
if (sysfs_events) {
if (sysfs_events & PCMCIA_UEVENT_EJECT)
socket_remove(skt);
if (sysfs_events & PCMCIA_UEVENT_INSERT)
socket_insert(skt);
if ((sysfs_events & PCMCIA_UEVENT_SUSPEND) &&
!(skt->state & SOCKET_CARDBUS)) {
if (skt->callback)
ret = skt->callback->suspend(skt);
else
ret = 0;
if (!ret) {
socket_suspend(skt);
msleep(100);
}
}
if ((sysfs_events & PCMCIA_UEVENT_RESUME) &&
!(skt->state & SOCKET_CARDBUS)) {
ret = socket_resume(skt);
if (!ret && skt->callback)
skt->callback->resume(skt);
}
if ((sysfs_events & PCMCIA_UEVENT_REQUERY) &&
!(skt->state & SOCKET_CARDBUS)) {
if (!ret && skt->callback)
skt->callback->requery(skt);
}
}
mutex_unlock(&skt->skt_mutex);
if (events || sysfs_events)
continue;
set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
schedule();
try_to_freeze();
}
/* make sure we are running before we exit */
__set_current_state(TASK_RUNNING);
/* shut down socket, if a device is still present */
if (skt->state & SOCKET_PRESENT) {
mutex_lock(&skt->skt_mutex);
socket_remove(skt);
mutex_unlock(&skt->skt_mutex);
}
/* remove from the device core */
pccard_sysfs_remove_socket(&skt->dev);
device_unregister(&skt->dev);
return 0;
}
/*
* Yenta (at least) probes interrupts before registering the socket and
* starting the handler thread.
*/
void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
{
unsigned long flags;
dev_dbg(&s->dev, "parse_events: events %08x\n", events);
if (s->thread) {
spin_lock_irqsave(&s->thread_lock, flags);
s->thread_events |= events;
spin_unlock_irqrestore(&s->thread_lock, flags);
wake_up_process(s->thread);
}
} /* pcmcia_parse_events */
EXPORT_SYMBOL(pcmcia_parse_events);
/**
* pcmcia_parse_uevents() - tell pccardd to issue manual commands
* @s: the PCMCIA socket we wan't to command
* @events: events to pass to pccardd
*
* userspace-issued insert, eject, suspend and resume commands must be
* handled by pccardd to avoid any sysfs-related deadlocks. Valid events
* are PCMCIA_UEVENT_EJECT (for eject), PCMCIA_UEVENT__INSERT (for insert),
* PCMCIA_UEVENT_RESUME (for resume), PCMCIA_UEVENT_SUSPEND (for suspend)
* and PCMCIA_UEVENT_REQUERY (for re-querying the PCMCIA card).
*/
void pcmcia_parse_uevents(struct pcmcia_socket *s, u_int events)
{
unsigned long flags;
dev_dbg(&s->dev, "parse_uevents: events %08x\n", events);
if (s->thread) {
spin_lock_irqsave(&s->thread_lock, flags);
s->sysfs_events |= events;
spin_unlock_irqrestore(&s->thread_lock, flags);
wake_up_process(s->thread);
}
}
EXPORT_SYMBOL(pcmcia_parse_uevents);
/* register pcmcia_callback */
int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
{
int ret = 0;
/* s->skt_mutex also protects s->callback */
mutex_lock(&s->skt_mutex);
if (c) {
/* registration */
if (s->callback) {
ret = -EBUSY;
goto err;
}
s->callback = c;
if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT)
s->callback->add(s);
} else
s->callback = NULL;
err:
mutex_unlock(&s->skt_mutex);
return ret;
}
EXPORT_SYMBOL(pccard_register_pcmcia);
/* I'm not sure which "reset" function this is supposed to use,
* but for now, it uses the low-level interface's reset, not the
* CIS register.
*/
int pcmcia_reset_card(struct pcmcia_socket *skt)
{
int ret;
dev_dbg(&skt->dev, "resetting socket\n");
mutex_lock(&skt->skt_mutex);
do {
if (!(skt->state & SOCKET_PRESENT)) {
dev_dbg(&skt->dev, "can't reset, not present\n");
ret = -ENODEV;
break;
}
if (skt->state & SOCKET_SUSPEND) {
dev_dbg(&skt->dev, "can't reset, suspended\n");
ret = -EBUSY;
break;
}
if (skt->state & SOCKET_CARDBUS) {
dev_dbg(&skt->dev, "can't reset, is cardbus\n");
ret = -EPERM;
break;
}
if (skt->callback)
skt->callback->suspend(skt);
mutex_lock(&skt->ops_mutex);
ret = socket_reset(skt);
mutex_unlock(&skt->ops_mutex);
if ((ret == 0) && (skt->callback))
skt->callback->resume(skt);
ret = 0;
} while (0);
mutex_unlock(&skt->skt_mutex);
return ret;
} /* reset_card */
EXPORT_SYMBOL(pcmcia_reset_card);
static int pcmcia_socket_uevent(const struct device *dev,
struct kobj_uevent_env *env)
{
const struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
if (add_uevent_var(env, "SOCKET_NO=%u", s->sock))
return -ENOMEM;
return 0;
}
static struct completion pcmcia_unload;
static void pcmcia_release_socket_class(const struct class *data)
{
complete(&pcmcia_unload);
}
#ifdef CONFIG_PM
static int __pcmcia_pm_op(struct device *dev,
int (*callback) (struct pcmcia_socket *skt))
{
struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
int ret;
mutex_lock(&s->skt_mutex);
ret = callback(s);
mutex_unlock(&s->skt_mutex);
return ret;
}
static int pcmcia_socket_dev_suspend_noirq(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_suspend);
}
static int pcmcia_socket_dev_resume_noirq(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_early_resume);
}
static int __used pcmcia_socket_dev_resume(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_late_resume);
}
static void __used pcmcia_socket_dev_complete(struct device *dev)
{
WARN(__pcmcia_pm_op(dev, socket_complete_resume),
"failed to complete resume");
}
static const struct dev_pm_ops pcmcia_socket_pm_ops = {
/* dev_resume may be called with IRQs enabled */
SET_SYSTEM_SLEEP_PM_OPS(NULL,
pcmcia_socket_dev_resume)
/* late suspend must be called with IRQs disabled */
.suspend_noirq = pcmcia_socket_dev_suspend_noirq,
.freeze_noirq = pcmcia_socket_dev_suspend_noirq,
.poweroff_noirq = pcmcia_socket_dev_suspend_noirq,
/* early resume must be called with IRQs disabled */
.resume_noirq = pcmcia_socket_dev_resume_noirq,
.thaw_noirq = pcmcia_socket_dev_resume_noirq,
.restore_noirq = pcmcia_socket_dev_resume_noirq,
.complete = pcmcia_socket_dev_complete,
};
#define PCMCIA_SOCKET_CLASS_PM_OPS (&pcmcia_socket_pm_ops)
#else /* CONFIG_PM */
#define PCMCIA_SOCKET_CLASS_PM_OPS NULL
#endif /* CONFIG_PM */
struct class pcmcia_socket_class = {
.name = "pcmcia_socket",
.dev_uevent = pcmcia_socket_uevent,
.dev_release = pcmcia_release_socket,
.class_release = pcmcia_release_socket_class,
.pm = PCMCIA_SOCKET_CLASS_PM_OPS,
};
EXPORT_SYMBOL(pcmcia_socket_class);
static int __init init_pcmcia_cs(void)
{
init_completion(&pcmcia_unload);
return class_register(&pcmcia_socket_class);
}
static void __exit exit_pcmcia_cs(void)
{
class_unregister(&pcmcia_socket_class);
wait_for_completion(&pcmcia_unload);
}
subsys_initcall(init_pcmcia_cs);
module_exit(exit_pcmcia_cs);
| linux-master | drivers/pcmcia/cs.c |
// SPDX-License-Identifier: GPL-2.0-only
/*======================================================================
Device driver for the PCMCIA control functionality of PXA2xx
microprocessors.
(c) Ian Molton ([email protected]) 2003
(c) Stefan Eletzhofer ([email protected]) 2003,4
derived from sa11xx_base.c
Portions created by John G. Dorsey are
Copyright (C) 1999 John G. Dorsey.
======================================================================*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/soc/pxa/cpu.h>
#include <linux/soc/pxa/smemc.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include "soc_common.h"
#include "pxa2xx_base.h"
/*
* Personal Computer Memory Card International Association (PCMCIA) sockets
*/
#define PCMCIAPrtSp 0x04000000 /* PCMCIA Partition Space [byte] */
#define PCMCIASp (4*PCMCIAPrtSp) /* PCMCIA Space [byte] */
#define PCMCIAIOSp PCMCIAPrtSp /* PCMCIA I/O Space [byte] */
#define PCMCIAAttrSp PCMCIAPrtSp /* PCMCIA Attribute Space [byte] */
#define PCMCIAMemSp PCMCIAPrtSp /* PCMCIA Memory Space [byte] */
#define PCMCIA0Sp PCMCIASp /* PCMCIA 0 Space [byte] */
#define PCMCIA0IOSp PCMCIAIOSp /* PCMCIA 0 I/O Space [byte] */
#define PCMCIA0AttrSp PCMCIAAttrSp /* PCMCIA 0 Attribute Space [byte] */
#define PCMCIA0MemSp PCMCIAMemSp /* PCMCIA 0 Memory Space [byte] */
#define PCMCIA1Sp PCMCIASp /* PCMCIA 1 Space [byte] */
#define PCMCIA1IOSp PCMCIAIOSp /* PCMCIA 1 I/O Space [byte] */
#define PCMCIA1AttrSp PCMCIAAttrSp /* PCMCIA 1 Attribute Space [byte] */
#define PCMCIA1MemSp PCMCIAMemSp /* PCMCIA 1 Memory Space [byte] */
#define _PCMCIA(Nb) /* PCMCIA [0..1] */ \
(0x20000000 + (Nb) * PCMCIASp)
#define _PCMCIAIO(Nb) _PCMCIA(Nb) /* PCMCIA I/O [0..1] */
#define _PCMCIAAttr(Nb) /* PCMCIA Attribute [0..1] */ \
(_PCMCIA(Nb) + 2 * PCMCIAPrtSp)
#define _PCMCIAMem(Nb) /* PCMCIA Memory [0..1] */ \
(_PCMCIA(Nb) + 3 * PCMCIAPrtSp)
#define _PCMCIA0 _PCMCIA(0) /* PCMCIA 0 */
#define _PCMCIA0IO _PCMCIAIO(0) /* PCMCIA 0 I/O */
#define _PCMCIA0Attr _PCMCIAAttr(0) /* PCMCIA 0 Attribute */
#define _PCMCIA0Mem _PCMCIAMem(0) /* PCMCIA 0 Memory */
#define _PCMCIA1 _PCMCIA(1) /* PCMCIA 1 */
#define _PCMCIA1IO _PCMCIAIO(1) /* PCMCIA 1 I/O */
#define _PCMCIA1Attr _PCMCIAAttr(1) /* PCMCIA 1 Attribute */
#define _PCMCIA1Mem _PCMCIAMem(1) /* PCMCIA 1 Memory */
#define MCXX_SETUP_MASK (0x7f)
#define MCXX_ASST_MASK (0x1f)
#define MCXX_HOLD_MASK (0x3f)
#define MCXX_SETUP_SHIFT (0)
#define MCXX_ASST_SHIFT (7)
#define MCXX_HOLD_SHIFT (14)
static inline u_int pxa2xx_mcxx_hold(u_int pcmcia_cycle_ns,
u_int mem_clk_10khz)
{
u_int code = pcmcia_cycle_ns * mem_clk_10khz;
return (code / 300000) + ((code % 300000) ? 1 : 0) - 1;
}
static inline u_int pxa2xx_mcxx_asst(u_int pcmcia_cycle_ns,
u_int mem_clk_10khz)
{
u_int code = pcmcia_cycle_ns * mem_clk_10khz;
return (code / 300000) + ((code % 300000) ? 1 : 0) + 1;
}
static inline u_int pxa2xx_mcxx_setup(u_int pcmcia_cycle_ns,
u_int mem_clk_10khz)
{
u_int code = pcmcia_cycle_ns * mem_clk_10khz;
return (code / 100000) + ((code % 100000) ? 1 : 0) - 1;
}
/* This function returns the (approximate) command assertion period, in
* nanoseconds, for a given CPU clock frequency and MCXX_ASST value:
*/
static inline u_int pxa2xx_pcmcia_cmd_time(u_int mem_clk_10khz,
u_int pcmcia_mcxx_asst)
{
return (300000 * (pcmcia_mcxx_asst + 1) / mem_clk_10khz);
}
static uint32_t pxa2xx_pcmcia_mcmem(int sock, int speed, int clock)
{
uint32_t val;
val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
return val;
}
static int pxa2xx_pcmcia_mcio(int sock, int speed, int clock)
{
uint32_t val;
val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
return val;
}
static int pxa2xx_pcmcia_mcatt(int sock, int speed, int clock)
{
uint32_t val;
val = ((pxa2xx_mcxx_setup(speed, clock)
& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
| ((pxa2xx_mcxx_asst(speed, clock)
& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
| ((pxa2xx_mcxx_hold(speed, clock)
& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
return val;
}
static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
{
unsigned long clk = clk_get_rate(skt->clk) / 10000;
struct soc_pcmcia_timing timing;
int sock = skt->nr;
soc_common_pcmcia_get_timing(skt, &timing);
pxa_smemc_set_pcmcia_timing(sock,
pxa2xx_pcmcia_mcmem(sock, timing.mem, clk),
pxa2xx_pcmcia_mcatt(sock, timing.attr, clk),
pxa2xx_pcmcia_mcio(sock, timing.io, clk));
return 0;
}
#ifdef CONFIG_CPU_FREQ
static int
pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
unsigned long val,
struct cpufreq_freqs *freqs)
{
switch (val) {
case CPUFREQ_PRECHANGE:
if (freqs->new > freqs->old) {
debug(skt, 2, "new frequency %u.%uMHz > %u.%uMHz, "
"pre-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
pxa2xx_pcmcia_set_timing(skt);
}
break;
case CPUFREQ_POSTCHANGE:
if (freqs->new < freqs->old) {
debug(skt, 2, "new frequency %u.%uMHz < %u.%uMHz, "
"post-updating\n",
freqs->new / 1000, (freqs->new / 100) % 10,
freqs->old / 1000, (freqs->old / 100) % 10);
pxa2xx_pcmcia_set_timing(skt);
}
break;
}
return 0;
}
#endif
void pxa2xx_configure_sockets(struct device *dev, struct pcmcia_low_level *ops)
{
pxa_smemc_set_pcmcia_socket(1);
}
EXPORT_SYMBOL(pxa2xx_configure_sockets);
static const char *skt_names[] = {
"PCMCIA socket 0",
"PCMCIA socket 1",
};
#define SKT_DEV_INFO_SIZE(n) \
(sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
int pxa2xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
{
skt->res_skt.start = _PCMCIA(skt->nr);
skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
skt->res_skt.name = skt_names[skt->nr];
skt->res_skt.flags = IORESOURCE_MEM;
skt->res_io.start = _PCMCIAIO(skt->nr);
skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
skt->res_io.name = "io";
skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
skt->res_mem.start = _PCMCIAMem(skt->nr);
skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
skt->res_mem.name = "memory";
skt->res_mem.flags = IORESOURCE_MEM;
skt->res_attr.start = _PCMCIAAttr(skt->nr);
skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
skt->res_attr.name = "attribute";
skt->res_attr.flags = IORESOURCE_MEM;
return soc_pcmcia_add_one(skt);
}
EXPORT_SYMBOL(pxa2xx_drv_pcmcia_add_one);
void pxa2xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
{
/* Provide our PXA2xx specific timing routines. */
ops->set_timing = pxa2xx_pcmcia_set_timing;
#ifdef CONFIG_CPU_FREQ
ops->frequency_change = pxa2xx_pcmcia_frequency_change;
#endif
}
EXPORT_SYMBOL(pxa2xx_drv_pcmcia_ops);
static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
{
int i, ret = 0;
struct pcmcia_low_level *ops;
struct skt_dev_info *sinfo;
struct soc_pcmcia_socket *skt;
struct clk *clk;
ops = (struct pcmcia_low_level *)dev->dev.platform_data;
if (!ops) {
ret = -ENODEV;
goto err0;
}
if (cpu_is_pxa320() && ops->nr > 1) {
dev_err(&dev->dev, "pxa320 supports only one pcmcia slot");
ret = -EINVAL;
goto err0;
}
clk = devm_clk_get(&dev->dev, NULL);
if (IS_ERR(clk))
return -ENODEV;
pxa2xx_drv_pcmcia_ops(ops);
sinfo = devm_kzalloc(&dev->dev, SKT_DEV_INFO_SIZE(ops->nr),
GFP_KERNEL);
if (!sinfo)
return -ENOMEM;
sinfo->nskt = ops->nr;
/* Initialize processor specific parameters */
for (i = 0; i < ops->nr; i++) {
skt = &sinfo->skt[i];
skt->nr = ops->first + i;
skt->clk = clk;
soc_pcmcia_init_one(skt, ops, &dev->dev);
ret = pxa2xx_drv_pcmcia_add_one(skt);
if (ret)
goto err1;
}
pxa2xx_configure_sockets(&dev->dev, ops);
dev_set_drvdata(&dev->dev, sinfo);
return 0;
err1:
while (--i >= 0)
soc_pcmcia_remove_one(&sinfo->skt[i]);
err0:
return ret;
}
static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
{
struct skt_dev_info *sinfo = platform_get_drvdata(dev);
int i;
for (i = 0; i < sinfo->nskt; i++)
soc_pcmcia_remove_one(&sinfo->skt[i]);
return 0;
}
static int pxa2xx_drv_pcmcia_resume(struct device *dev)
{
struct pcmcia_low_level *ops = (struct pcmcia_low_level *)dev->platform_data;
pxa2xx_configure_sockets(dev, ops);
return 0;
}
static const struct dev_pm_ops pxa2xx_drv_pcmcia_pm_ops = {
.resume = pxa2xx_drv_pcmcia_resume,
};
static struct platform_driver pxa2xx_pcmcia_driver = {
.probe = pxa2xx_drv_pcmcia_probe,
.remove = pxa2xx_drv_pcmcia_remove,
.driver = {
.name = "pxa2xx-pcmcia",
.pm = &pxa2xx_drv_pcmcia_pm_ops,
},
};
static int __init pxa2xx_pcmcia_init(void)
{
return platform_driver_register(&pxa2xx_pcmcia_driver);
}
static void __exit pxa2xx_pcmcia_exit(void)
{
platform_driver_unregister(&pxa2xx_pcmcia_driver);
}
fs_initcall(pxa2xx_pcmcia_init);
module_exit(pxa2xx_pcmcia_exit);
MODULE_AUTHOR("Stefan Eletzhofer <[email protected]> and Ian Molton <[email protected]>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: PXA2xx core socket driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
| linux-master | drivers/pcmcia/pxa2xx_base.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* omap_cf.c -- OMAP 16xx CompactFlash controller driver
*
* Copyright (c) 2005 David Brownell
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <linux/soc/ti/omap1-io.h>
#include <linux/soc/ti/omap1-soc.h>
#include <linux/soc/ti/omap1-mux.h>
/* NOTE: don't expect this to support many I/O cards. The 16xx chips have
* hard-wired timings to support Compact Flash memory cards; they won't work
* with various other devices (like WLAN adapters) without some external
* logic to help out.
*
* NOTE: CF controller docs disagree with address space docs as to where
* CF_BASE really lives; this is a doc erratum.
*/
#define CF_BASE 0xfffe2800
/* status; read after IRQ */
#define CF_STATUS (CF_BASE + 0x00)
# define CF_STATUS_BAD_READ (1 << 2)
# define CF_STATUS_BAD_WRITE (1 << 1)
# define CF_STATUS_CARD_DETECT (1 << 0)
/* which chipselect (CS0..CS3) is used for CF (active low) */
#define CF_CFG (CF_BASE + 0x02)
/* card reset */
#define CF_CONTROL (CF_BASE + 0x04)
# define CF_CONTROL_RESET (1 << 0)
#define omap_cf_present() (!(omap_readw(CF_STATUS) & CF_STATUS_CARD_DETECT))
/*--------------------------------------------------------------------------*/
static const char driver_name[] = "omap_cf";
struct omap_cf_socket {
struct pcmcia_socket socket;
struct timer_list timer;
unsigned present:1;
unsigned active:1;
struct platform_device *pdev;
unsigned long phys_cf;
u_int irq;
struct resource iomem;
};
#define POLL_INTERVAL (2 * HZ)
/*--------------------------------------------------------------------------*/
static int omap_cf_ss_init(struct pcmcia_socket *s)
{
return 0;
}
/* the timer is primarily to kick this socket's pccardd */
static void omap_cf_timer(struct timer_list *t)
{
struct omap_cf_socket *cf = from_timer(cf, t, timer);
unsigned present = omap_cf_present();
if (present != cf->present) {
cf->present = present;
pr_debug("%s: card %s\n", driver_name,
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
/* This irq handler prevents "irqNNN: nobody cared" messages as drivers
* claim the card's IRQ. It may also detect some card insertions, but
* not removals; it can't always eliminate timer irqs.
*/
static irqreturn_t omap_cf_irq(int irq, void *_cf)
{
struct omap_cf_socket *cf = (struct omap_cf_socket *)_cf;
omap_cf_timer(&cf->timer);
return IRQ_HANDLED;
}
static int omap_cf_get_status(struct pcmcia_socket *s, u_int *sp)
{
if (!sp)
return -EINVAL;
/* NOTE CF is always 3VCARD */
if (omap_cf_present()) {
struct omap_cf_socket *cf;
*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
cf = container_of(s, struct omap_cf_socket, socket);
s->pcmcia_irq = 0;
s->pci_irq = cf->irq;
} else
*sp = 0;
return 0;
}
static int
omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
{
/* REVISIT some non-OSK boards may support power switching */
switch (s->Vcc) {
case 0:
case 33:
break;
default:
return -EINVAL;
}
omap_readw(CF_CONTROL);
if (s->flags & SS_RESET)
omap_writew(CF_CONTROL_RESET, CF_CONTROL);
else
omap_writew(0, CF_CONTROL);
pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n",
driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);
return 0;
}
static int omap_cf_ss_suspend(struct pcmcia_socket *s)
{
pr_debug("%s: %s\n", driver_name, __func__);
return omap_cf_set_socket(s, &dead_socket);
}
/* regions are 2K each: mem, attrib, io (and reserved-for-ide) */
static int
omap_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
{
struct omap_cf_socket *cf;
cf = container_of(s, struct omap_cf_socket, socket);
io->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
io->start = cf->phys_cf + SZ_4K;
io->stop = io->start + SZ_2K - 1;
return 0;
}
static int
omap_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map)
{
struct omap_cf_socket *cf;
if (map->card_start)
return -EINVAL;
cf = container_of(s, struct omap_cf_socket, socket);
map->static_start = cf->phys_cf;
map->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
if (map->flags & MAP_ATTRIB)
map->static_start += SZ_2K;
return 0;
}
static struct pccard_operations omap_cf_ops = {
.init = omap_cf_ss_init,
.suspend = omap_cf_ss_suspend,
.get_status = omap_cf_get_status,
.set_socket = omap_cf_set_socket,
.set_io_map = omap_cf_set_io_map,
.set_mem_map = omap_cf_set_mem_map,
};
/*--------------------------------------------------------------------------*/
/*
* NOTE: right now the only board-specific platform_data is
* "what chipselect is used". Boards could want more.
*/
static int __init omap_cf_probe(struct platform_device *pdev)
{
unsigned seg;
struct omap_cf_socket *cf;
int irq;
int status;
struct resource *res;
struct resource iospace = DEFINE_RES_IO(SZ_64, SZ_4K);
seg = (int) pdev->dev.platform_data;
if (seg == 0 || seg > 3)
return -ENODEV;
/* either CFLASH.IREQ (INT_1610_CF) or some GPIO */
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
cf = kzalloc(sizeof *cf, GFP_KERNEL);
if (!cf)
return -ENOMEM;
timer_setup(&cf->timer, omap_cf_timer, 0);
cf->pdev = pdev;
platform_set_drvdata(pdev, cf);
/* this primarily just shuts up irq handling noise */
status = request_irq(irq, omap_cf_irq, IRQF_SHARED,
driver_name, cf);
if (status < 0)
goto fail0;
cf->irq = irq;
cf->socket.pci_irq = irq;
cf->phys_cf = res->start;
/* pcmcia layer only remaps "real" memory */
cf->socket.io_offset = iospace.start;
status = pci_remap_iospace(&iospace, cf->phys_cf + SZ_4K);
if (status) {
status = -ENOMEM;
goto fail1;
}
if (!request_mem_region(cf->phys_cf, SZ_8K, driver_name)) {
status = -ENXIO;
goto fail1;
}
/* NOTE: CF conflicts with MMC1 */
omap_cfg_reg(W11_1610_CF_CD1);
omap_cfg_reg(P11_1610_CF_CD2);
omap_cfg_reg(R11_1610_CF_IOIS16);
omap_cfg_reg(V10_1610_CF_IREQ);
omap_cfg_reg(W10_1610_CF_RESET);
omap_writew(~(1 << seg), CF_CFG);
pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
/* CF uses armxor_ck, which is "always" available */
pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
omap_readw(CF_STATUS), omap_readw(CF_CFG),
omap_readw(CF_CONTROL),
omap_cf_present() ? "present" : "(not present)");
cf->socket.owner = THIS_MODULE;
cf->socket.dev.parent = &pdev->dev;
cf->socket.ops = &omap_cf_ops;
cf->socket.resource_ops = &pccard_static_ops;
cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
| SS_CAP_MEM_ALIGN;
cf->socket.map_size = SZ_2K;
cf->socket.io[0].res = &cf->iomem;
status = pcmcia_register_socket(&cf->socket);
if (status < 0)
goto fail2;
cf->active = 1;
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
return 0;
fail2:
release_mem_region(cf->phys_cf, SZ_8K);
fail1:
free_irq(irq, cf);
fail0:
kfree(cf);
return status;
}
static int __exit omap_cf_remove(struct platform_device *pdev)
{
struct omap_cf_socket *cf = platform_get_drvdata(pdev);
cf->active = 0;
pcmcia_unregister_socket(&cf->socket);
timer_shutdown_sync(&cf->timer);
release_mem_region(cf->phys_cf, SZ_8K);
free_irq(cf->irq, cf);
kfree(cf);
return 0;
}
static struct platform_driver omap_cf_driver = {
.driver = {
.name = driver_name,
},
.remove = __exit_p(omap_cf_remove),
};
static int __init omap_cf_init(void)
{
if (cpu_is_omap16xx())
return platform_driver_probe(&omap_cf_driver, omap_cf_probe);
return -ENODEV;
}
static void __exit omap_cf_exit(void)
{
if (cpu_is_omap16xx())
platform_driver_unregister(&omap_cf_driver);
}
module_init(omap_cf_init);
module_exit(omap_cf_exit);
MODULE_DESCRIPTION("OMAP CF Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:omap_cf");
| linux-master | drivers/pcmcia/omap_cf.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Sharp SL-C7xx Series PCMCIA routines
*
* Copyright (c) 2004-2005 Richard Purdie
*
* Based on Sharp's 2.4 kernel patches and pxa2xx_mainstone.c
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/hardware/scoop.h>
#include <pcmcia/soc_common.h>
#define NO_KEEP_VS 0x0001
#define SCOOP_DEV platform_scoop_config->devs
static void sharpsl_pcmcia_init_reset(struct soc_pcmcia_socket *skt)
{
struct scoop_pcmcia_dev *scoopdev = &SCOOP_DEV[skt->nr];
reset_scoop(scoopdev->dev);
/* Shared power controls need to be handled carefully */
if (platform_scoop_config->power_ctrl)
platform_scoop_config->power_ctrl(scoopdev->dev, 0x0000, skt->nr);
else
write_scoop_reg(scoopdev->dev, SCOOP_CPR, 0x0000);
scoopdev->keep_vs = NO_KEEP_VS;
scoopdev->keep_rd = 0;
}
static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
skt->stat[SOC_STAT_CD].irq = SCOOP_DEV[skt->nr].cd_irq;
skt->stat[SOC_STAT_CD].name = SCOOP_DEV[skt->nr].cd_irq_str;
}
skt->socket.pci_irq = SCOOP_DEV[skt->nr].irq;
return 0;
}
static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
unsigned short cpr, csr;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
csr = read_scoop_reg(scoop, SCOOP_CSR);
if (csr & 0x0004) {
/* card eject */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
}
else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
/* keep vs1,vs2 */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
csr |= SCOOP_DEV[skt->nr].keep_vs;
}
else if (cpr & 0x0003) {
/* power on */
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
}
else {
/* card detect */
if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
} else {
write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
}
}
state->detect = (csr & 0x0004) ? 0 : 1;
state->ready = (csr & 0x0002) ? 1 : 0;
state->bvd1 = (csr & 0x0010) ? 1 : 0;
state->bvd2 = (csr & 0x0020) ? 1 : 0;
state->wrprot = (csr & 0x0008) ? 1 : 0;
state->vs_3v = (csr & 0x0040) ? 0 : 1;
state->vs_Xv = (csr & 0x0080) ? 0 : 1;
if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
}
}
static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
const socket_state_t *state)
{
unsigned long flags;
struct device *scoop = SCOOP_DEV[skt->nr].dev;
unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
switch (state->Vcc) {
case 0: break;
case 33: break;
case 50: break;
default:
printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
return -1;
}
if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
return -1;
}
local_irq_save(flags);
nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
ncpr |= (state->Vcc == 33) ? 0x0002 :
(state->Vcc == 50) ? 0x0002 : 0;
} else {
ncpr |= (state->Vcc == 33) ? 0x0001 :
(state->Vcc == 50) ? 0x0002 : 0;
}
nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
nccr |= (state->flags&SS_RESET)? 0x0080: 0;
nimr |= ((skt->status&SS_DETECT) ? 0x0004 : 0)|
((skt->status&SS_READY) ? 0x0002 : 0)|
((skt->status&SS_BATDEAD)? 0x0010 : 0)|
((skt->status&SS_BATWARN)? 0x0020 : 0)|
((skt->status&SS_STSCHG) ? 0x0010 : 0)|
((skt->status&SS_WRPROT) ? 0x0008 : 0);
if (!(ncpr & 0x0003)) {
SCOOP_DEV[skt->nr].keep_rd = 0;
} else if (!SCOOP_DEV[skt->nr].keep_rd) {
if (nccr & 0x0080)
SCOOP_DEV[skt->nr].keep_rd = 1;
else
nccr |= 0x0080;
}
if (mcr != nmcr)
write_scoop_reg(scoop, SCOOP_MCR, nmcr);
if (cpr != ncpr) {
if (platform_scoop_config->power_ctrl)
platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
else
write_scoop_reg(scoop, SCOOP_CPR, ncpr);
}
if (ccr != nccr)
write_scoop_reg(scoop, SCOOP_CCR, nccr);
if (imr != nimr)
write_scoop_reg(scoop, SCOOP_IMR, nimr);
local_irq_restore(flags);
return 0;
}
static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
sharpsl_pcmcia_init_reset(skt);
/* Enable interrupt */
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
}
static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
sharpsl_pcmcia_init_reset(skt);
}
static struct pcmcia_low_level sharpsl_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = sharpsl_pcmcia_hw_init,
.socket_state = sharpsl_pcmcia_socket_state,
.configure_socket = sharpsl_pcmcia_configure_socket,
.socket_init = sharpsl_pcmcia_socket_init,
.socket_suspend = sharpsl_pcmcia_socket_suspend,
.first = 0,
.nr = 0,
};
#ifdef CONFIG_SA1100_COLLIE
#include "sa11xx_base.h"
int pcmcia_collie_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_collie())
ret = sa11xx_drv_pcmcia_probe(dev, &sharpsl_pcmcia_ops, 0, 1);
return ret;
}
#else
static struct platform_device *sharpsl_pcmcia_device;
static int __init sharpsl_pcmcia_init(void)
{
int ret;
if (!platform_scoop_config)
return -ENODEV;
sharpsl_pcmcia_ops.nr = platform_scoop_config->num_devs;
sharpsl_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
if (!sharpsl_pcmcia_device)
return -ENOMEM;
ret = platform_device_add_data(sharpsl_pcmcia_device,
&sharpsl_pcmcia_ops, sizeof(sharpsl_pcmcia_ops));
if (ret == 0) {
sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
ret = platform_device_add(sharpsl_pcmcia_device);
}
if (ret)
platform_device_put(sharpsl_pcmcia_device);
return ret;
}
static void __exit sharpsl_pcmcia_exit(void)
{
platform_device_unregister(sharpsl_pcmcia_device);
}
fs_initcall(sharpsl_pcmcia_init);
module_exit(sharpsl_pcmcia_exit);
#endif
MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa2xx-pcmcia");
| linux-master | drivers/pcmcia/pxa2xx_sharpsl.c |
/*======================================================================
Device driver for Intel 82365 and compatible PC Card controllers.
i82365.c 1.265 1999/11/10 18:36:21
The contents of this file are subject to the Mozilla Public
License Version 1.1 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
The initial developer of the original code is David A. Hinds
<[email protected]>. Portions created by David A. Hinds
are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
Alternatively, the contents of this file may be used under the
terms of the GNU General Public License version 2 (the "GPL"), in which
case the provisions of the GPL are applicable instead of the
above. If you wish to allow the use of your version of this file
only under the terms of the GPL and not to allow others to use
your version of this file under the MPL, indicate your decision
by deleting the provisions above and replace them with the notice
and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this
file under either the MPL or the GPL.
======================================================================*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/bitops.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <pcmcia/ss.h>
#include <linux/isapnp.h>
/* ISA-bus controllers */
#include "i82365.h"
#include "cirrus.h"
#include "vg468.h"
#include "ricoh.h"
static irqreturn_t i365_count_irq(int, void *);
static inline int _check_irq(int irq, int flags)
{
if (request_irq(irq, i365_count_irq, flags, "x", i365_count_irq) != 0)
return -1;
free_irq(irq, i365_count_irq);
return 0;
}
/*====================================================================*/
/* Parameters that can be set with 'insmod' */
/* Default base address for i82365sl and other ISA chips */
static unsigned long i365_base = 0x3e0;
/* Should we probe at 0x3e2 for an extra ISA controller? */
static int extra_sockets = 0;
/* Specify a socket number to ignore */
static int ignore = -1;
/* Bit map or list of interrupts to choose from */
static u_int irq_mask = 0xffff;
static int irq_list[16];
static unsigned int irq_list_count;
/* The card status change interrupt -- 0 means autoselect */
static int cs_irq = 0;
/* Probe for safe interrupts? */
static int do_scan = 1;
/* Poll status interval -- 0 means default to interrupt */
static int poll_interval = 0;
/* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
static int cycle_time = 120;
/* Cirrus options */
static int has_dma = -1;
static int has_led = -1;
static int has_ring = -1;
static int dynamic_mode = 0;
static int freq_bypass = -1;
static int setup_time = -1;
static int cmd_time = -1;
static int recov_time = -1;
/* Vadem options */
static int async_clock = -1;
static int cable_mode = -1;
static int wakeup = 0;
module_param_hw(i365_base, ulong, ioport, 0444);
module_param(ignore, int, 0444);
module_param(extra_sockets, int, 0444);
module_param_hw(irq_mask, int, other, 0444);
module_param_hw_array(irq_list, int, irq, &irq_list_count, 0444);
module_param_hw(cs_irq, int, irq, 0444);
module_param(async_clock, int, 0444);
module_param(cable_mode, int, 0444);
module_param(wakeup, int, 0444);
module_param(do_scan, int, 0444);
module_param(poll_interval, int, 0444);
module_param(cycle_time, int, 0444);
module_param(has_dma, int, 0444);
module_param(has_led, int, 0444);
module_param(has_ring, int, 0444);
module_param(dynamic_mode, int, 0444);
module_param(freq_bypass, int, 0444);
module_param(setup_time, int, 0444);
module_param(cmd_time, int, 0444);
module_param(recov_time, int, 0444);
/*====================================================================*/
struct cirrus_state {
u_char misc1, misc2;
u_char timer[6];
};
struct vg46x_state {
u_char ctl, ema;
};
struct i82365_socket {
u_short type, flags;
struct pcmcia_socket socket;
unsigned int number;
unsigned int ioaddr;
u_short psock;
u_char cs_irq, intr;
union {
struct cirrus_state cirrus;
struct vg46x_state vg46x;
} state;
};
/* Where we keep track of our sockets... */
static int sockets = 0;
static struct i82365_socket socket[8] = {
{ 0, }, /* ... */
};
/* Default ISA interrupt mask */
#define I365_MASK 0xdeb8 /* irq 15,14,12,11,10,9,7,5,4,3 */
static int grab_irq;
static DEFINE_SPINLOCK(isa_lock);
#define ISA_LOCK(n, f) spin_lock_irqsave(&isa_lock, f)
#define ISA_UNLOCK(n, f) spin_unlock_irqrestore(&isa_lock, f)
static struct timer_list poll_timer;
/*====================================================================*/
/* These definitions must match the pcic table! */
enum pcic_id {
IS_I82365A, IS_I82365B, IS_I82365DF,
IS_IBM, IS_RF5Cx96, IS_VLSI, IS_VG468, IS_VG469,
IS_PD6710, IS_PD672X, IS_VT83C469,
};
/* Flags for classifying groups of controllers */
#define IS_VADEM 0x0001
#define IS_CIRRUS 0x0002
#define IS_VIA 0x0010
#define IS_UNKNOWN 0x0400
#define IS_VG_PWR 0x0800
#define IS_DF_PWR 0x1000
#define IS_REGISTERED 0x2000
#define IS_ALIVE 0x8000
struct pcic {
char *name;
u_short flags;
};
static struct pcic pcic[] = {
{ "Intel i82365sl A step", 0 },
{ "Intel i82365sl B step", 0 },
{ "Intel i82365sl DF", IS_DF_PWR },
{ "IBM Clone", 0 },
{ "Ricoh RF5C296/396", 0 },
{ "VLSI 82C146", 0 },
{ "Vadem VG-468", IS_VADEM },
{ "Vadem VG-469", IS_VADEM|IS_VG_PWR },
{ "Cirrus PD6710", IS_CIRRUS },
{ "Cirrus PD672x", IS_CIRRUS },
{ "VIA VT83C469", IS_CIRRUS|IS_VIA },
};
#define PCIC_COUNT ARRAY_SIZE(pcic)
/*====================================================================*/
static DEFINE_SPINLOCK(bus_lock);
static u_char i365_get(u_short sock, u_short reg)
{
unsigned long flags;
spin_lock_irqsave(&bus_lock,flags);
{
unsigned int port = socket[sock].ioaddr;
u_char val;
reg = I365_REG(socket[sock].psock, reg);
outb(reg, port); val = inb(port+1);
spin_unlock_irqrestore(&bus_lock,flags);
return val;
}
}
static void i365_set(u_short sock, u_short reg, u_char data)
{
unsigned long flags;
spin_lock_irqsave(&bus_lock,flags);
{
unsigned int port = socket[sock].ioaddr;
u_char val = I365_REG(socket[sock].psock, reg);
outb(val, port); outb(data, port+1);
spin_unlock_irqrestore(&bus_lock,flags);
}
}
static void i365_bset(u_short sock, u_short reg, u_char mask)
{
u_char d = i365_get(sock, reg);
d |= mask;
i365_set(sock, reg, d);
}
static void i365_bclr(u_short sock, u_short reg, u_char mask)
{
u_char d = i365_get(sock, reg);
d &= ~mask;
i365_set(sock, reg, d);
}
static void i365_bflip(u_short sock, u_short reg, u_char mask, int b)
{
u_char d = i365_get(sock, reg);
if (b)
d |= mask;
else
d &= ~mask;
i365_set(sock, reg, d);
}
static u_short i365_get_pair(u_short sock, u_short reg)
{
u_short a, b;
a = i365_get(sock, reg);
b = i365_get(sock, reg+1);
return (a + (b<<8));
}
static void i365_set_pair(u_short sock, u_short reg, u_short data)
{
i365_set(sock, reg, data & 0xff);
i365_set(sock, reg+1, data >> 8);
}
/*======================================================================
Code to save and restore global state information for Cirrus
PD67xx controllers, and to set and report global configuration
options.
The VIA controllers also use these routines, as they are mostly
Cirrus lookalikes, without the timing registers.
======================================================================*/
#define flip(v,b,f) (v = ((f)<0) ? v : ((f) ? ((v)|(b)) : ((v)&(~b))))
static void cirrus_get_state(u_short s)
{
int i;
struct cirrus_state *p = &socket[s].state.cirrus;
p->misc1 = i365_get(s, PD67_MISC_CTL_1);
p->misc1 &= (PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
p->misc2 = i365_get(s, PD67_MISC_CTL_2);
for (i = 0; i < 6; i++)
p->timer[i] = i365_get(s, PD67_TIME_SETUP(0)+i);
}
static void cirrus_set_state(u_short s)
{
int i;
u_char misc;
struct cirrus_state *p = &socket[s].state.cirrus;
misc = i365_get(s, PD67_MISC_CTL_2);
i365_set(s, PD67_MISC_CTL_2, p->misc2);
if (misc & PD67_MC2_SUSPEND) mdelay(50);
misc = i365_get(s, PD67_MISC_CTL_1);
misc &= ~(PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
i365_set(s, PD67_MISC_CTL_1, misc | p->misc1);
for (i = 0; i < 6; i++)
i365_set(s, PD67_TIME_SETUP(0)+i, p->timer[i]);
}
static u_int __init cirrus_set_opts(u_short s, char *buf)
{
struct i82365_socket *t = &socket[s];
struct cirrus_state *p = &socket[s].state.cirrus;
u_int mask = 0xffff;
if (has_ring == -1) has_ring = 1;
flip(p->misc2, PD67_MC2_IRQ15_RI, has_ring);
flip(p->misc2, PD67_MC2_DYNAMIC_MODE, dynamic_mode);
flip(p->misc2, PD67_MC2_FREQ_BYPASS, freq_bypass);
if (p->misc2 & PD67_MC2_IRQ15_RI)
strcat(buf, " [ring]");
if (p->misc2 & PD67_MC2_DYNAMIC_MODE)
strcat(buf, " [dyn mode]");
if (p->misc2 & PD67_MC2_FREQ_BYPASS)
strcat(buf, " [freq bypass]");
if (p->misc1 & PD67_MC1_INPACK_ENA)
strcat(buf, " [inpack]");
if (p->misc2 & PD67_MC2_IRQ15_RI)
mask &= ~0x8000;
if (has_led > 0) {
strcat(buf, " [led]");
mask &= ~0x1000;
}
if (has_dma > 0) {
strcat(buf, " [dma]");
mask &= ~0x0600;
}
if (!(t->flags & IS_VIA)) {
if (setup_time >= 0)
p->timer[0] = p->timer[3] = setup_time;
if (cmd_time > 0) {
p->timer[1] = cmd_time;
p->timer[4] = cmd_time*2+4;
}
if (p->timer[1] == 0) {
p->timer[1] = 6; p->timer[4] = 16;
if (p->timer[0] == 0)
p->timer[0] = p->timer[3] = 1;
}
if (recov_time >= 0)
p->timer[2] = p->timer[5] = recov_time;
buf += strlen(buf);
sprintf(buf, " [%d/%d/%d] [%d/%d/%d]", p->timer[0], p->timer[1],
p->timer[2], p->timer[3], p->timer[4], p->timer[5]);
}
return mask;
}
/*======================================================================
Code to save and restore global state information for Vadem VG468
and VG469 controllers, and to set and report global configuration
options.
======================================================================*/
static void vg46x_get_state(u_short s)
{
struct vg46x_state *p = &socket[s].state.vg46x;
p->ctl = i365_get(s, VG468_CTL);
if (socket[s].type == IS_VG469)
p->ema = i365_get(s, VG469_EXT_MODE);
}
static void vg46x_set_state(u_short s)
{
struct vg46x_state *p = &socket[s].state.vg46x;
i365_set(s, VG468_CTL, p->ctl);
if (socket[s].type == IS_VG469)
i365_set(s, VG469_EXT_MODE, p->ema);
}
static u_int __init vg46x_set_opts(u_short s, char *buf)
{
struct vg46x_state *p = &socket[s].state.vg46x;
flip(p->ctl, VG468_CTL_ASYNC, async_clock);
flip(p->ema, VG469_MODE_CABLE, cable_mode);
if (p->ctl & VG468_CTL_ASYNC)
strcat(buf, " [async]");
if (p->ctl & VG468_CTL_INPACK)
strcat(buf, " [inpack]");
if (socket[s].type == IS_VG469) {
u_char vsel = i365_get(s, VG469_VSELECT);
if (vsel & VG469_VSEL_EXT_STAT) {
strcat(buf, " [ext mode]");
if (vsel & VG469_VSEL_EXT_BUS)
strcat(buf, " [isa buf]");
}
if (p->ema & VG469_MODE_CABLE)
strcat(buf, " [cable]");
if (p->ema & VG469_MODE_COMPAT)
strcat(buf, " [c step]");
}
return 0xffff;
}
/*======================================================================
Generic routines to get and set controller options
======================================================================*/
static void get_bridge_state(u_short s)
{
struct i82365_socket *t = &socket[s];
if (t->flags & IS_CIRRUS)
cirrus_get_state(s);
else if (t->flags & IS_VADEM)
vg46x_get_state(s);
}
static void set_bridge_state(u_short s)
{
struct i82365_socket *t = &socket[s];
if (t->flags & IS_CIRRUS)
cirrus_set_state(s);
else {
i365_set(s, I365_GBLCTL, 0x00);
i365_set(s, I365_GENCTL, 0x00);
}
i365_bflip(s, I365_INTCTL, I365_INTR_ENA, t->intr);
if (t->flags & IS_VADEM)
vg46x_set_state(s);
}
static u_int __init set_bridge_opts(u_short s, u_short ns)
{
u_short i;
u_int m = 0xffff;
char buf[128];
for (i = s; i < s+ns; i++) {
if (socket[i].flags & IS_ALIVE) {
printk(KERN_INFO " host opts [%d]: already alive!\n", i);
continue;
}
buf[0] = '\0';
get_bridge_state(i);
if (socket[i].flags & IS_CIRRUS)
m = cirrus_set_opts(i, buf);
else if (socket[i].flags & IS_VADEM)
m = vg46x_set_opts(i, buf);
set_bridge_state(i);
printk(KERN_INFO " host opts [%d]:%s\n", i,
(*buf) ? buf : " none");
}
return m;
}
/*======================================================================
Interrupt testing code, for ISA and PCI interrupts
======================================================================*/
static volatile u_int irq_hits;
static u_short irq_sock;
static irqreturn_t i365_count_irq(int irq, void *dev)
{
i365_get(irq_sock, I365_CSC);
irq_hits++;
pr_debug("i82365: -> hit on irq %d\n", irq);
return IRQ_HANDLED;
}
static u_int __init test_irq(u_short sock, int irq)
{
pr_debug("i82365: testing ISA irq %d\n", irq);
if (request_irq(irq, i365_count_irq, IRQF_PROBE_SHARED, "scan",
i365_count_irq) != 0)
return 1;
irq_hits = 0; irq_sock = sock;
msleep(10);
if (irq_hits) {
free_irq(irq, i365_count_irq);
pr_debug("i82365: spurious hit!\n");
return 1;
}
/* Generate one interrupt */
i365_set(sock, I365_CSCINT, I365_CSC_DETECT | (irq << 4));
i365_bset(sock, I365_GENCTL, I365_CTL_SW_IRQ);
udelay(1000);
free_irq(irq, i365_count_irq);
/* mask all interrupts */
i365_set(sock, I365_CSCINT, 0);
pr_debug("i82365: hits = %d\n", irq_hits);
return (irq_hits != 1);
}
static u_int __init isa_scan(u_short sock, u_int mask0)
{
u_int mask1 = 0;
int i;
#ifdef __alpha__
#define PIC 0x4d0
/* Don't probe level-triggered interrupts -- reserved for PCI */
mask0 &= ~(inb(PIC) | (inb(PIC+1) << 8));
#endif
if (do_scan) {
set_bridge_state(sock);
i365_set(sock, I365_CSCINT, 0);
for (i = 0; i < 16; i++)
if ((mask0 & (1 << i)) && (test_irq(sock, i) == 0))
mask1 |= (1 << i);
for (i = 0; i < 16; i++)
if ((mask1 & (1 << i)) && (test_irq(sock, i) != 0))
mask1 ^= (1 << i);
}
printk(KERN_INFO " ISA irqs (");
if (mask1) {
printk("scanned");
} else {
/* Fallback: just find interrupts that aren't in use */
for (i = 0; i < 16; i++)
if ((mask0 & (1 << i)) && (_check_irq(i, IRQF_PROBE_SHARED) == 0))
mask1 |= (1 << i);
printk("default");
/* If scan failed, default to polled status */
if (!cs_irq && (poll_interval == 0)) poll_interval = HZ;
}
printk(") = ");
for (i = 0; i < 16; i++)
if (mask1 & (1<<i))
printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);
if (mask1 == 0) printk("none!");
return mask1;
}
/*====================================================================*/
/* Time conversion functions */
static int to_cycles(int ns)
{
return ns/cycle_time;
}
/*====================================================================*/
static int __init identify(unsigned int port, u_short sock)
{
u_char val;
int type = -1;
/* Use the next free entry in the socket table */
socket[sockets].ioaddr = port;
socket[sockets].psock = sock;
/* Wake up a sleepy Cirrus controller */
if (wakeup) {
i365_bclr(sockets, PD67_MISC_CTL_2, PD67_MC2_SUSPEND);
/* Pause at least 50 ms */
mdelay(50);
}
if ((val = i365_get(sockets, I365_IDENT)) & 0x70)
return -1;
switch (val) {
case 0x82:
type = IS_I82365A; break;
case 0x83:
type = IS_I82365B; break;
case 0x84:
type = IS_I82365DF; break;
case 0x88: case 0x89: case 0x8a:
type = IS_IBM; break;
}
/* Check for Vadem VG-468 chips */
outb(0x0e, port);
outb(0x37, port);
i365_bset(sockets, VG468_MISC, VG468_MISC_VADEMREV);
val = i365_get(sockets, I365_IDENT);
if (val & I365_IDENT_VADEM) {
i365_bclr(sockets, VG468_MISC, VG468_MISC_VADEMREV);
type = ((val & 7) >= 4) ? IS_VG469 : IS_VG468;
}
/* Check for Ricoh chips */
val = i365_get(sockets, RF5C_CHIP_ID);
if ((val == RF5C_CHIP_RF5C296) || (val == RF5C_CHIP_RF5C396))
type = IS_RF5Cx96;
/* Check for Cirrus CL-PD67xx chips */
i365_set(sockets, PD67_CHIP_INFO, 0);
val = i365_get(sockets, PD67_CHIP_INFO);
if ((val & PD67_INFO_CHIP_ID) == PD67_INFO_CHIP_ID) {
val = i365_get(sockets, PD67_CHIP_INFO);
if ((val & PD67_INFO_CHIP_ID) == 0) {
type = (val & PD67_INFO_SLOTS) ? IS_PD672X : IS_PD6710;
i365_set(sockets, PD67_EXT_INDEX, 0xe5);
if (i365_get(sockets, PD67_EXT_INDEX) != 0xe5)
type = IS_VT83C469;
}
}
return type;
} /* identify */
/*======================================================================
See if a card is present, powered up, in IO mode, and already
bound to a (non PC Card) Linux driver. We leave these alone.
We make an exception for cards that seem to be serial devices.
======================================================================*/
static int __init is_alive(u_short sock)
{
u_char stat;
unsigned int start, stop;
stat = i365_get(sock, I365_STATUS);
start = i365_get_pair(sock, I365_IO(0)+I365_W_START);
stop = i365_get_pair(sock, I365_IO(0)+I365_W_STOP);
if ((stat & I365_CS_DETECT) && (stat & I365_CS_POWERON) &&
(i365_get(sock, I365_INTCTL) & I365_PC_IOCARD) &&
(i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(0)) &&
((start & 0xfeef) != 0x02e8)) {
if (!request_region(start, stop-start+1, "i82365"))
return 1;
release_region(start, stop-start+1);
}
return 0;
}
/*====================================================================*/
static void __init add_socket(unsigned int port, int psock, int type)
{
socket[sockets].ioaddr = port;
socket[sockets].psock = psock;
socket[sockets].type = type;
socket[sockets].flags = pcic[type].flags;
if (is_alive(sockets))
socket[sockets].flags |= IS_ALIVE;
sockets++;
}
static void __init add_pcic(int ns, int type)
{
u_int mask = 0, i, base;
int isa_irq = 0;
struct i82365_socket *t = &socket[sockets-ns];
base = sockets-ns;
if (base == 0) printk("\n");
printk(KERN_INFO " %s", pcic[type].name);
printk(" ISA-to-PCMCIA at port %#x ofs 0x%02x",
t->ioaddr, t->psock*0x40);
printk(", %d socket%s\n", ns, ((ns > 1) ? "s" : ""));
/* Set host options, build basic interrupt mask */
if (irq_list_count == 0)
mask = irq_mask;
else
for (i = mask = 0; i < irq_list_count; i++)
mask |= (1<<irq_list[i]);
mask &= I365_MASK & set_bridge_opts(base, ns);
/* Scan for ISA interrupts */
mask = isa_scan(base, mask);
/* Poll if only two interrupts available */
if (!poll_interval) {
u_int tmp = (mask & 0xff20);
tmp = tmp & (tmp-1);
if ((tmp & (tmp-1)) == 0)
poll_interval = HZ;
}
/* Only try an ISA cs_irq if this is the first controller */
if (!grab_irq && (cs_irq || !poll_interval)) {
/* Avoid irq 12 unless it is explicitly requested */
u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
for (cs_irq = 15; cs_irq > 0; cs_irq--)
if ((cs_mask & (1 << cs_irq)) &&
(_check_irq(cs_irq, IRQF_PROBE_SHARED) == 0))
break;
if (cs_irq) {
grab_irq = 1;
isa_irq = cs_irq;
printk(" status change on irq %d\n", cs_irq);
}
}
if (!isa_irq) {
if (poll_interval == 0)
poll_interval = HZ;
printk(" polling interval = %d ms\n",
poll_interval * 1000 / HZ);
}
/* Update socket interrupt information, capabilities */
for (i = 0; i < ns; i++) {
t[i].socket.features |= SS_CAP_PCCARD;
t[i].socket.map_size = 0x1000;
t[i].socket.irq_mask = mask;
t[i].cs_irq = isa_irq;
}
} /* add_pcic */
/*====================================================================*/
#ifdef CONFIG_PNP
static struct isapnp_device_id id_table[] __initdata = {
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
ISAPNP_FUNCTION(0x0e00), (unsigned long) "Intel 82365-Compatible" },
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
ISAPNP_FUNCTION(0x0e01), (unsigned long) "Cirrus Logic CL-PD6720" },
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
ISAPNP_FUNCTION(0x0e02), (unsigned long) "VLSI VL82C146" },
{ 0 }
};
MODULE_DEVICE_TABLE(isapnp, id_table);
static struct pnp_dev *i82365_pnpdev;
#endif
static void __init isa_probe(void)
{
int i, j, sock, k, ns, id;
unsigned int port;
#ifdef CONFIG_PNP
struct isapnp_device_id *devid;
struct pnp_dev *dev;
for (devid = id_table; devid->vendor; devid++) {
if ((dev = pnp_find_dev(NULL, devid->vendor, devid->function, NULL))) {
if (pnp_device_attach(dev) < 0)
continue;
if (pnp_activate_dev(dev) < 0) {
printk("activate failed\n");
pnp_device_detach(dev);
break;
}
if (!pnp_port_valid(dev, 0)) {
printk("invalid resources ?\n");
pnp_device_detach(dev);
break;
}
i365_base = pnp_port_start(dev, 0);
i82365_pnpdev = dev;
break;
}
}
#endif
if (!request_region(i365_base, 2, "i82365")) {
if (sockets == 0)
printk("port conflict at %#lx\n", i365_base);
return;
}
id = identify(i365_base, 0);
if ((id == IS_I82365DF) && (identify(i365_base, 1) != id)) {
for (i = 0; i < 4; i++) {
if (i == ignore) continue;
port = i365_base + ((i & 1) << 2) + ((i & 2) << 1);
sock = (i & 1) << 1;
if (identify(port, sock) == IS_I82365DF) {
add_socket(port, sock, IS_VLSI);
add_pcic(1, IS_VLSI);
}
}
} else {
for (i = 0; i < 8; i += 2) {
if (sockets && !extra_sockets && (i == 4))
break;
port = i365_base + 2*(i>>2);
sock = (i & 3);
id = identify(port, sock);
if (id < 0) continue;
for (j = ns = 0; j < 2; j++) {
/* Does the socket exist? */
if ((ignore == i+j) || (identify(port, sock+j) < 0))
continue;
/* Check for bad socket decode */
for (k = 0; k <= sockets; k++)
i365_set(k, I365_MEM(0)+I365_W_OFF, k);
for (k = 0; k <= sockets; k++)
if (i365_get(k, I365_MEM(0)+I365_W_OFF) != k)
break;
if (k <= sockets) break;
add_socket(port, sock+j, id); ns++;
}
if (ns != 0) add_pcic(ns, id);
}
}
}
/*====================================================================*/
static irqreturn_t pcic_interrupt(int irq, void *dev)
{
int i, j, csc;
u_int events, active;
u_long flags = 0;
int handled = 0;
pr_debug("pcic_interrupt(%d)\n", irq);
for (j = 0; j < 20; j++) {
active = 0;
for (i = 0; i < sockets; i++) {
if (socket[i].cs_irq != irq)
continue;
handled = 1;
ISA_LOCK(i, flags);
csc = i365_get(i, I365_CSC);
if ((csc == 0) || (i365_get(i, I365_IDENT) & 0x70)) {
ISA_UNLOCK(i, flags);
continue;
}
events = (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
if (i365_get(i, I365_INTCTL) & I365_PC_IOCARD)
events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
else {
events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY) ? SS_READY : 0;
}
ISA_UNLOCK(i, flags);
pr_debug("socket %d event 0x%02x\n", i, events);
if (events)
pcmcia_parse_events(&socket[i].socket, events);
active |= events;
}
if (!active) break;
}
if (j == 20)
printk(KERN_NOTICE "i82365: infinite loop in interrupt handler\n");
pr_debug("pcic_interrupt done\n");
return IRQ_RETVAL(handled);
} /* pcic_interrupt */
static void pcic_interrupt_wrapper(struct timer_list *unused)
{
pcic_interrupt(0, NULL);
poll_timer.expires = jiffies + poll_interval;
add_timer(&poll_timer);
}
/*====================================================================*/
static int i365_get_status(u_short sock, u_int *value)
{
u_int status;
status = i365_get(sock, I365_STATUS);
*value = ((status & I365_CS_DETECT) == I365_CS_DETECT)
? SS_DETECT : 0;
if (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD)
*value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
else {
*value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
*value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
}
*value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
*value |= (status & I365_CS_READY) ? SS_READY : 0;
*value |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
if (socket[sock].type == IS_VG469) {
status = i365_get(sock, VG469_VSENSE);
if (socket[sock].psock & 1) {
*value |= (status & VG469_VSENSE_B_VS1) ? 0 : SS_3VCARD;
*value |= (status & VG469_VSENSE_B_VS2) ? 0 : SS_XVCARD;
} else {
*value |= (status & VG469_VSENSE_A_VS1) ? 0 : SS_3VCARD;
*value |= (status & VG469_VSENSE_A_VS2) ? 0 : SS_XVCARD;
}
}
pr_debug("GetStatus(%d) = %#4.4x\n", sock, *value);
return 0;
} /* i365_get_status */
/*====================================================================*/
static int i365_set_socket(u_short sock, socket_state_t *state)
{
struct i82365_socket *t = &socket[sock];
u_char reg;
pr_debug("SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
"io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
/* First set global controller options */
set_bridge_state(sock);
/* IO card, RESET flag, IO interrupt */
reg = t->intr;
reg |= state->io_irq;
reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
i365_set(sock, I365_INTCTL, reg);
reg = I365_PWR_NORESET;
if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
if (t->flags & IS_CIRRUS) {
if (state->Vpp != 0) {
if (state->Vpp == 120)
reg |= I365_VPP1_12V;
else if (state->Vpp == state->Vcc)
reg |= I365_VPP1_5V;
else return -EINVAL;
}
if (state->Vcc != 0) {
reg |= I365_VCC_5V;
if (state->Vcc == 33)
i365_bset(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
else if (state->Vcc == 50)
i365_bclr(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
else return -EINVAL;
}
} else if (t->flags & IS_VG_PWR) {
if (state->Vpp != 0) {
if (state->Vpp == 120)
reg |= I365_VPP1_12V;
else if (state->Vpp == state->Vcc)
reg |= I365_VPP1_5V;
else return -EINVAL;
}
if (state->Vcc != 0) {
reg |= I365_VCC_5V;
if (state->Vcc == 33)
i365_bset(sock, VG469_VSELECT, VG469_VSEL_VCC);
else if (state->Vcc == 50)
i365_bclr(sock, VG469_VSELECT, VG469_VSEL_VCC);
else return -EINVAL;
}
} else if (t->flags & IS_DF_PWR) {
switch (state->Vcc) {
case 0: break;
case 33: reg |= I365_VCC_3V; break;
case 50: reg |= I365_VCC_5V; break;
default: return -EINVAL;
}
switch (state->Vpp) {
case 0: break;
case 50: reg |= I365_VPP1_5V; break;
case 120: reg |= I365_VPP1_12V; break;
default: return -EINVAL;
}
} else {
switch (state->Vcc) {
case 0: break;
case 50: reg |= I365_VCC_5V; break;
default: return -EINVAL;
}
switch (state->Vpp) {
case 0: break;
case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
default: return -EINVAL;
}
}
if (reg != i365_get(sock, I365_POWER))
i365_set(sock, I365_POWER, reg);
/* Chipset-specific functions */
if (t->flags & IS_CIRRUS) {
/* Speaker control */
i365_bflip(sock, PD67_MISC_CTL_1, PD67_MC1_SPKR_ENA,
state->flags & SS_SPKR_ENA);
}
/* Card status change interrupt mask */
reg = t->cs_irq << 4;
if (state->csc_mask & SS_DETECT) reg |= I365_CSC_DETECT;
if (state->flags & SS_IOCARD) {
if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
} else {
if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
}
i365_set(sock, I365_CSCINT, reg);
i365_get(sock, I365_CSC);
return 0;
} /* i365_set_socket */
/*====================================================================*/
static int i365_set_io_map(u_short sock, struct pccard_io_map *io)
{
u_char map, ioctl;
pr_debug("SetIOMap(%d, %d, %#2.2x, %d ns, "
"%#llx-%#llx)\n", sock, io->map, io->flags, io->speed,
(unsigned long long)io->start, (unsigned long long)io->stop);
map = io->map;
if ((map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||
(io->stop < io->start)) return -EINVAL;
/* Turn off the window before changing anything */
if (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(map))
i365_bclr(sock, I365_ADDRWIN, I365_ENA_IO(map));
i365_set_pair(sock, I365_IO(map)+I365_W_START, io->start);
i365_set_pair(sock, I365_IO(map)+I365_W_STOP, io->stop);
ioctl = i365_get(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map);
if (io->speed) ioctl |= I365_IOCTL_WAIT(map);
if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
i365_set(sock, I365_IOCTL, ioctl);
/* Turn on the window if necessary */
if (io->flags & MAP_ACTIVE)
i365_bset(sock, I365_ADDRWIN, I365_ENA_IO(map));
return 0;
} /* i365_set_io_map */
/*====================================================================*/
static int i365_set_mem_map(u_short sock, struct pccard_mem_map *mem)
{
u_short base, i;
u_char map;
pr_debug("SetMemMap(%d, %d, %#2.2x, %d ns, %#llx-%#llx, "
"%#x)\n", sock, mem->map, mem->flags, mem->speed,
(unsigned long long)mem->res->start,
(unsigned long long)mem->res->end, mem->card_start);
map = mem->map;
if ((map > 4) || (mem->card_start > 0x3ffffff) ||
(mem->res->start > mem->res->end) || (mem->speed > 1000))
return -EINVAL;
if ((mem->res->start > 0xffffff) || (mem->res->end > 0xffffff))
return -EINVAL;
/* Turn off the window before changing anything */
if (i365_get(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
i365_bclr(sock, I365_ADDRWIN, I365_ENA_MEM(map));
base = I365_MEM(map);
i = (mem->res->start >> 12) & 0x0fff;
if (mem->flags & MAP_16BIT) i |= I365_MEM_16BIT;
if (mem->flags & MAP_0WS) i |= I365_MEM_0WS;
i365_set_pair(sock, base+I365_W_START, i);
i = (mem->res->end >> 12) & 0x0fff;
switch (to_cycles(mem->speed)) {
case 0: break;
case 1: i |= I365_MEM_WS0; break;
case 2: i |= I365_MEM_WS1; break;
default: i |= I365_MEM_WS1 | I365_MEM_WS0; break;
}
i365_set_pair(sock, base+I365_W_STOP, i);
i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
if (mem->flags & MAP_WRPROT) i |= I365_MEM_WRPROT;
if (mem->flags & MAP_ATTRIB) i |= I365_MEM_REG;
i365_set_pair(sock, base+I365_W_OFF, i);
/* Turn on the window if necessary */
if (mem->flags & MAP_ACTIVE)
i365_bset(sock, I365_ADDRWIN, I365_ENA_MEM(map));
return 0;
} /* i365_set_mem_map */
#if 0 /* driver model ordering issue */
/*======================================================================
Routines for accessing socket information and register dumps via
/sys/class/pcmcia_socket/...
======================================================================*/
static ssize_t show_info(struct class_device *class_dev, char *buf)
{
struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
return sprintf(buf, "type: %s\npsock: %d\n",
pcic[s->type].name, s->psock);
}
static ssize_t show_exca(struct class_device *class_dev, char *buf)
{
struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
unsigned short sock;
int i;
ssize_t ret = 0;
unsigned long flags = 0;
sock = s->number;
ISA_LOCK(sock, flags);
for (i = 0; i < 0x40; i += 4) {
ret += sprintf(buf, "%02x %02x %02x %02x%s",
i365_get(sock,i), i365_get(sock,i+1),
i365_get(sock,i+2), i365_get(sock,i+3),
((i % 16) == 12) ? "\n" : " ");
buf += ret;
}
ISA_UNLOCK(sock, flags);
return ret;
}
static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
#endif
/*====================================================================*/
/* this is horribly ugly... proper locking needs to be done here at
* some time... */
#define LOCKED(x) do { \
int retval; \
unsigned long flags; \
spin_lock_irqsave(&isa_lock, flags); \
retval = x; \
spin_unlock_irqrestore(&isa_lock, flags); \
return retval; \
} while (0)
static int pcic_get_status(struct pcmcia_socket *s, u_int *value)
{
unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
if (socket[sock].flags & IS_ALIVE) {
*value = 0;
return -EINVAL;
}
LOCKED(i365_get_status(sock, value));
}
static int pcic_set_socket(struct pcmcia_socket *s, socket_state_t *state)
{
unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
if (socket[sock].flags & IS_ALIVE)
return -EINVAL;
LOCKED(i365_set_socket(sock, state));
}
static int pcic_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
{
unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
if (socket[sock].flags & IS_ALIVE)
return -EINVAL;
LOCKED(i365_set_io_map(sock, io));
}
static int pcic_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
{
unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
if (socket[sock].flags & IS_ALIVE)
return -EINVAL;
LOCKED(i365_set_mem_map(sock, mem));
}
static int pcic_init(struct pcmcia_socket *s)
{
int i;
struct resource res = { .start = 0, .end = 0x1000 };
pccard_io_map io = { 0, 0, 0, 0, 1 };
pccard_mem_map mem = { .res = &res, };
for (i = 0; i < 2; i++) {
io.map = i;
pcic_set_io_map(s, &io);
}
for (i = 0; i < 5; i++) {
mem.map = i;
pcic_set_mem_map(s, &mem);
}
return 0;
}
static struct pccard_operations pcic_operations = {
.init = pcic_init,
.get_status = pcic_get_status,
.set_socket = pcic_set_socket,
.set_io_map = pcic_set_io_map,
.set_mem_map = pcic_set_mem_map,
};
/*====================================================================*/
static struct platform_driver i82365_driver = {
.driver = {
.name = "i82365",
},
};
static struct platform_device *i82365_device;
static int __init init_i82365(void)
{
int i, ret;
ret = platform_driver_register(&i82365_driver);
if (ret)
goto err_out;
i82365_device = platform_device_alloc("i82365", 0);
if (i82365_device) {
ret = platform_device_add(i82365_device);
if (ret)
platform_device_put(i82365_device);
} else
ret = -ENOMEM;
if (ret)
goto err_driver_unregister;
printk(KERN_INFO "Intel ISA PCIC probe: ");
sockets = 0;
isa_probe();
if (sockets == 0) {
printk("not found.\n");
ret = -ENODEV;
goto err_dev_unregister;
}
/* Set up interrupt handler(s) */
if (grab_irq != 0)
ret = request_irq(cs_irq, pcic_interrupt, 0, "i82365", pcic_interrupt);
if (ret)
goto err_socket_release;
/* register sockets with the pcmcia core */
for (i = 0; i < sockets; i++) {
socket[i].socket.dev.parent = &i82365_device->dev;
socket[i].socket.ops = &pcic_operations;
socket[i].socket.resource_ops = &pccard_nonstatic_ops;
socket[i].socket.owner = THIS_MODULE;
socket[i].number = i;
ret = pcmcia_register_socket(&socket[i].socket);
if (!ret)
socket[i].flags |= IS_REGISTERED;
}
/* Finally, schedule a polling interrupt */
if (poll_interval != 0) {
timer_setup(&poll_timer, pcic_interrupt_wrapper, 0);
poll_timer.expires = jiffies + poll_interval;
add_timer(&poll_timer);
}
return 0;
err_socket_release:
for (i = 0; i < sockets; i++) {
/* Turn off all interrupt sources! */
i365_set(i, I365_CSCINT, 0);
release_region(socket[i].ioaddr, 2);
}
err_dev_unregister:
platform_device_unregister(i82365_device);
release_region(i365_base, 2);
#ifdef CONFIG_PNP
if (i82365_pnpdev)
pnp_disable_dev(i82365_pnpdev);
#endif
err_driver_unregister:
platform_driver_unregister(&i82365_driver);
err_out:
return ret;
} /* init_i82365 */
static void __exit exit_i82365(void)
{
int i;
for (i = 0; i < sockets; i++) {
if (socket[i].flags & IS_REGISTERED)
pcmcia_unregister_socket(&socket[i].socket);
}
platform_device_unregister(i82365_device);
if (poll_interval != 0)
del_timer_sync(&poll_timer);
if (grab_irq != 0)
free_irq(cs_irq, pcic_interrupt);
for (i = 0; i < sockets; i++) {
/* Turn off all interrupt sources! */
i365_set(i, I365_CSCINT, 0);
release_region(socket[i].ioaddr, 2);
}
release_region(i365_base, 2);
#ifdef CONFIG_PNP
if (i82365_pnpdev)
pnp_disable_dev(i82365_pnpdev);
#endif
platform_driver_unregister(&i82365_driver);
} /* exit_i82365 */
module_init(init_i82365);
module_exit(exit_i82365);
MODULE_LICENSE("Dual MPL/GPL");
/*====================================================================*/
| linux-master | drivers/pcmcia/i82365.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regular cardbus driver ("yenta_socket")
*
* (C) Copyright 1999, 2000 Linus Torvalds
*
* Changelog:
* Aug 2002: Manfred Spraul <[email protected]>
* Dynamically adjust the size of the bridge resource
*
* May 2003: Dominik Brodowski <[email protected]>
* Merge pci_socket.c and yenta.c into one file
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
#include "yenta_socket.h"
#include "i82365.h"
static bool disable_clkrun;
module_param(disable_clkrun, bool, 0444);
MODULE_PARM_DESC(disable_clkrun,
"If PC card doesn't function properly, please try this option (TI and Ricoh bridges only)");
static bool isa_probe = 1;
module_param(isa_probe, bool, 0444);
MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
static bool pwr_irqs_off;
module_param(pwr_irqs_off, bool, 0644);
MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
static char o2_speedup[] = "default";
module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444);
MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' "
"or 'default' (uses recommended behaviour for the detected bridge)");
/*
* Only probe "regular" interrupts, don't
* touch dangerous spots like the mouse irq,
* because there are mice that apparently
* get really confused if they get fondled
* too intimately.
*
* Default to 11, 10, 9, 7, 6, 5, 4, 3.
*/
static u32 isa_interrupts = 0x0ef8;
#define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
/* Don't ask.. */
#define to_cycles(ns) ((ns)/120)
#define to_ns(cycles) ((cycles)*120)
/*
* yenta PCI irq probing.
* currently only used in the TI/EnE initialization code
*/
#ifdef CONFIG_YENTA_TI
static int yenta_probe_cb_irq(struct yenta_socket *socket);
static unsigned int yenta_probe_irq(struct yenta_socket *socket,
u32 isa_irq_mask);
#endif
static unsigned int override_bios;
module_param(override_bios, uint, 0000);
MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation");
/*
* Generate easy-to-use ways of reading a cardbus sockets
* regular memory space ("cb_xxx"), configuration space
* ("config_xxx") and compatibility space ("exca_xxxx")
*/
static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
{
u32 val = readl(socket->base + reg);
debug("%04x %08x\n", socket, reg, val);
return val;
}
static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
{
debug("%04x %08x\n", socket, reg, val);
writel(val, socket->base + reg);
readl(socket->base + reg); /* avoid problems with PCI write posting */
}
static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
{
u8 val;
pci_read_config_byte(socket->dev, offset, &val);
debug("%04x %02x\n", socket, offset, val);
return val;
}
static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
{
u16 val;
pci_read_config_word(socket->dev, offset, &val);
debug("%04x %04x\n", socket, offset, val);
return val;
}
static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
{
u32 val;
pci_read_config_dword(socket->dev, offset, &val);
debug("%04x %08x\n", socket, offset, val);
return val;
}
static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
{
debug("%04x %02x\n", socket, offset, val);
pci_write_config_byte(socket->dev, offset, val);
}
static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
{
debug("%04x %04x\n", socket, offset, val);
pci_write_config_word(socket->dev, offset, val);
}
static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
{
debug("%04x %08x\n", socket, offset, val);
pci_write_config_dword(socket->dev, offset, val);
}
static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
{
u8 val = readb(socket->base + 0x800 + reg);
debug("%04x %02x\n", socket, reg, val);
return val;
}
/*
static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
{
u16 val;
val = readb(socket->base + 0x800 + reg);
val |= readb(socket->base + 0x800 + reg + 1) << 8;
debug("%04x %04x\n", socket, reg, val);
return val;
}
*/
static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
{
debug("%04x %02x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
readb(socket->base + 0x800 + reg); /* PCI write posting... */
}
static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
{
debug("%04x %04x\n", socket, reg, val);
writeb(val, socket->base + 0x800 + reg);
writeb(val >> 8, socket->base + 0x800 + reg + 1);
/* PCI write posting... */
readb(socket->base + 0x800 + reg);
readb(socket->base + 0x800 + reg + 1);
}
static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf)
{
struct yenta_socket *socket = dev_get_drvdata(yentadev);
int offset = 0, i;
offset = sysfs_emit(buf, "CB registers:");
for (i = 0; i < 0x24; i += 4) {
unsigned val;
if (!(i & 15))
offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
val = cb_readl(socket, i);
offset += sysfs_emit_at(buf, offset, " %08x", val);
}
offset += sysfs_emit_at(buf, offset, "\n\nExCA registers:");
for (i = 0; i < 0x45; i++) {
unsigned char val;
if (!(i & 7)) {
if (i & 8) {
memcpy(buf + offset, " -", 2);
offset += 2;
} else
offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
}
val = exca_readb(socket, i);
offset += sysfs_emit_at(buf, offset, " %02x", val);
}
sysfs_emit_at(buf, offset, "\n");
return offset;
}
static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
/*
* Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
* on what kind of card is inserted..
*/
static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
unsigned int val;
u32 state = cb_readl(socket, CB_SOCKET_STATE);
val = (state & CB_3VCARD) ? SS_3VCARD : 0;
val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
if (state & CB_CBCARD) {
val |= SS_CARDBUS;
val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
} else if (state & CB_16BITCARD) {
u8 status = exca_readb(socket, I365_STATUS);
val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
} else {
val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
}
val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
val |= (status & I365_CS_READY) ? SS_READY : 0;
val |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
}
*value = val;
return 0;
}
static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
{
/* some birdges require to use the ExCA registers to power 16bit cards */
if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
(socket->flags & YENTA_16BIT_POWER_EXCA)) {
u8 reg, old;
reg = old = exca_readb(socket, I365_POWER);
reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK);
/* i82365SL-DF style */
if (socket->flags & YENTA_16BIT_POWER_DF) {
switch (state->Vcc) {
case 33:
reg |= I365_VCC_3V;
break;
case 50:
reg |= I365_VCC_5V;
break;
default:
reg = 0;
break;
}
switch (state->Vpp) {
case 33:
case 50:
reg |= I365_VPP1_5V;
break;
case 120:
reg |= I365_VPP1_12V;
break;
}
} else {
/* i82365SL-B style */
switch (state->Vcc) {
case 50:
reg |= I365_VCC_5V;
break;
default:
reg = 0;
break;
}
switch (state->Vpp) {
case 50:
reg |= I365_VPP1_5V | I365_VPP2_5V;
break;
case 120:
reg |= I365_VPP1_12V | I365_VPP2_12V;
break;
}
}
if (reg != old)
exca_writeb(socket, I365_POWER, reg);
} else {
u32 reg = 0; /* CB_SC_STPCLK? */
switch (state->Vcc) {
case 33:
reg = CB_SC_VCC_3V;
break;
case 50:
reg = CB_SC_VCC_5V;
break;
default:
reg = 0;
break;
}
switch (state->Vpp) {
case 33:
reg |= CB_SC_VPP_3V;
break;
case 50:
reg |= CB_SC_VPP_5V;
break;
case 120:
reg |= CB_SC_VPP_12V;
break;
}
if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
cb_writel(socket, CB_SOCKET_CONTROL, reg);
}
}
static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
u16 bridge;
/* if powering down: do it immediately */
if (state->Vcc == 0)
yenta_set_power(socket, state);
socket->io_irq = state->io_irq;
bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
u8 intr;
bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
/* ISA interrupt control? */
intr = exca_readb(socket, I365_INTCTL);
intr = (intr & ~0xf);
if (!socket->dev->irq) {
intr |= socket->cb_irq ? socket->cb_irq : state->io_irq;
bridge |= CB_BRIDGE_INTR;
}
exca_writeb(socket, I365_INTCTL, intr);
} else {
u8 reg;
reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
if (state->io_irq != socket->dev->irq) {
reg |= state->io_irq;
bridge |= CB_BRIDGE_INTR;
}
exca_writeb(socket, I365_INTCTL, reg);
reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
reg |= I365_PWR_NORESET;
if (state->flags & SS_PWR_AUTO)
reg |= I365_PWR_AUTO;
if (state->flags & SS_OUTPUT_ENA)
reg |= I365_PWR_OUT;
if (exca_readb(socket, I365_POWER) != reg)
exca_writeb(socket, I365_POWER, reg);
/* CSC interrupt: no ISA irq for CSC */
reg = exca_readb(socket, I365_CSCINT);
reg &= I365_CSC_IRQ_MASK;
reg |= I365_CSC_DETECT;
if (state->flags & SS_IOCARD) {
if (state->csc_mask & SS_STSCHG)
reg |= I365_CSC_STSCHG;
} else {
if (state->csc_mask & SS_BATDEAD)
reg |= I365_CSC_BVD1;
if (state->csc_mask & SS_BATWARN)
reg |= I365_CSC_BVD2;
if (state->csc_mask & SS_READY)
reg |= I365_CSC_READY;
}
exca_writeb(socket, I365_CSCINT, reg);
exca_readb(socket, I365_CSC);
if (sock->zoom_video)
sock->zoom_video(sock, state->flags & SS_ZVCARD);
}
config_writew(socket, CB_BRIDGE_CONTROL, bridge);
/* Socket event mask: get card insert/remove events.. */
cb_writel(socket, CB_SOCKET_EVENT, -1);
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
/* if powering up: do it as the last step when the socket is configured */
if (state->Vcc != 0)
yenta_set_power(socket, state);
return 0;
}
static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
int map;
unsigned char ioctl, addr, enable;
map = io->map;
if (map > 1)
return -EINVAL;
enable = I365_ENA_IO(map);
addr = exca_readb(socket, I365_ADDRWIN);
/* Disable the window before changing it.. */
if (addr & enable) {
addr &= ~enable;
exca_writeb(socket, I365_ADDRWIN, addr);
}
exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
if (io->flags & MAP_0WS)
ioctl |= I365_IOCTL_0WS(map);
if (io->flags & MAP_16BIT)
ioctl |= I365_IOCTL_16BIT(map);
if (io->flags & MAP_AUTOSZ)
ioctl |= I365_IOCTL_IOCS16(map);
exca_writeb(socket, I365_IOCTL, ioctl);
if (io->flags & MAP_ACTIVE)
exca_writeb(socket, I365_ADDRWIN, addr | enable);
return 0;
}
static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
struct pci_bus_region region;
int map;
unsigned char addr, enable;
unsigned int start, stop, card_start;
unsigned short word;
pcibios_resource_to_bus(socket->dev->bus, ®ion, mem->res);
map = mem->map;
start = region.start;
stop = region.end;
card_start = mem->card_start;
if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
(card_start >> 26) || mem->speed > 1000)
return -EINVAL;
enable = I365_ENA_MEM(map);
addr = exca_readb(socket, I365_ADDRWIN);
if (addr & enable) {
addr &= ~enable;
exca_writeb(socket, I365_ADDRWIN, addr);
}
exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
word = (start >> 12) & 0x0fff;
if (mem->flags & MAP_16BIT)
word |= I365_MEM_16BIT;
if (mem->flags & MAP_0WS)
word |= I365_MEM_0WS;
exca_writew(socket, I365_MEM(map) + I365_W_START, word);
word = (stop >> 12) & 0x0fff;
switch (to_cycles(mem->speed)) {
case 0:
break;
case 1:
word |= I365_MEM_WS0;
break;
case 2:
word |= I365_MEM_WS1;
break;
default:
word |= I365_MEM_WS1 | I365_MEM_WS0;
break;
}
exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
word = ((card_start - start) >> 12) & 0x3fff;
if (mem->flags & MAP_WRPROT)
word |= I365_MEM_WRPROT;
if (mem->flags & MAP_ATTRIB)
word |= I365_MEM_REG;
exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
if (mem->flags & MAP_ACTIVE)
exca_writeb(socket, I365_ADDRWIN, addr | enable);
return 0;
}
static irqreturn_t yenta_interrupt(int irq, void *dev_id)
{
unsigned int events;
struct yenta_socket *socket = (struct yenta_socket *) dev_id;
u8 csc;
u32 cb_event;
/* Clear interrupt status for the event */
cb_event = cb_readl(socket, CB_SOCKET_EVENT);
cb_writel(socket, CB_SOCKET_EVENT, cb_event);
csc = exca_readb(socket, I365_CSC);
if (!(cb_event || csc))
return IRQ_NONE;
events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
} else {
events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY) ? SS_READY : 0;
}
if (events)
pcmcia_parse_events(&socket->socket, events);
return IRQ_HANDLED;
}
static void yenta_interrupt_wrapper(struct timer_list *t)
{
struct yenta_socket *socket = from_timer(socket, t, poll_timer);
yenta_interrupt(0, (void *)socket);
socket->poll_timer.expires = jiffies + HZ;
add_timer(&socket->poll_timer);
}
static void yenta_clear_maps(struct yenta_socket *socket)
{
int i;
struct resource res = { .start = 0, .end = 0x0fff };
pccard_io_map io = { 0, 0, 0, 0, 1 };
pccard_mem_map mem = { .res = &res, };
yenta_set_socket(&socket->socket, &dead_socket);
for (i = 0; i < 2; i++) {
io.map = i;
yenta_set_io_map(&socket->socket, &io);
}
for (i = 0; i < 5; i++) {
mem.map = i;
yenta_set_mem_map(&socket->socket, &mem);
}
}
/* redoes voltage interrogation if required */
static void yenta_interrogate(struct yenta_socket *socket)
{
u32 state;
state = cb_readl(socket, CB_SOCKET_STATE);
if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
(state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
}
/* Called at resume and initialization events */
static int yenta_sock_init(struct pcmcia_socket *sock)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
exca_writeb(socket, I365_GBLCTL, 0x00);
exca_writeb(socket, I365_GENCTL, 0x00);
/* Redo card voltage interrogation */
yenta_interrogate(socket);
yenta_clear_maps(socket);
if (socket->type && socket->type->sock_init)
socket->type->sock_init(socket);
/* Re-enable CSC interrupts */
cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
return 0;
}
static int yenta_sock_suspend(struct pcmcia_socket *sock)
{
struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
/* Disable CSC interrupts */
cb_writel(socket, CB_SOCKET_MASK, 0x0);
return 0;
}
/*
* Use an adaptive allocation for the memory resource,
* sometimes the memory behind pci bridges is limited:
* 1/8 of the size of the io window of the parent.
* max 4 MB, min 16 kB. We try very hard to not get below
* the "ACC" values, though.
*/
#define BRIDGE_MEM_MAX (4*1024*1024)
#define BRIDGE_MEM_ACC (128*1024)
#define BRIDGE_MEM_MIN (16*1024)
#define BRIDGE_IO_MAX 512
#define BRIDGE_IO_ACC 256
#define BRIDGE_IO_MIN 32
#ifndef PCIBIOS_MIN_CARDBUS_IO
#define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
#endif
static int yenta_search_one_res(struct resource *root, struct resource *res,
u32 min)
{
u32 align, size, start, end;
if (res->flags & IORESOURCE_IO) {
align = 1024;
size = BRIDGE_IO_MAX;
start = PCIBIOS_MIN_CARDBUS_IO;
end = ~0U;
} else {
unsigned long avail = root->end - root->start;
int i;
size = BRIDGE_MEM_MAX;
if (size > avail/8) {
size = (avail+1)/8;
/* round size down to next power of 2 */
i = 0;
while ((size /= 2) != 0)
i++;
size = 1 << i;
}
if (size < min)
size = min;
align = size;
start = PCIBIOS_MIN_MEM;
end = ~0U;
}
do {
if (allocate_resource(root, res, size, start, end, align,
NULL, NULL) == 0) {
return 1;
}
size = size/2;
align = size;
} while (size >= min);
return 0;
}
static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
u32 min)
{
struct resource *root;
int i;
pci_bus_for_each_resource(socket->dev->bus, root, i) {
if (!root)
continue;
if ((res->flags ^ root->flags) &
(IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
continue; /* Wrong type */
if (yenta_search_one_res(root, res, min))
return 1;
}
return 0;
}
static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
{
struct pci_dev *dev = socket->dev;
struct resource *res;
struct pci_bus_region region;
unsigned mask;
res = &dev->resource[nr];
/* Already allocated? */
if (res->parent)
return 0;
/* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
mask = ~0xfff;
if (type & IORESOURCE_IO)
mask = ~3;
res->name = dev->subordinate->name;
res->flags = type;
region.start = config_readl(socket, addr_start) & mask;
region.end = config_readl(socket, addr_end) | ~mask;
if (region.start && region.end > region.start && !override_bios) {
pcibios_bus_to_resource(dev->bus, res, ®ion);
if (pci_claim_resource(dev, nr) == 0)
return 0;
dev_info(&dev->dev,
"Preassigned resource %d busy or not available, reconfiguring...\n",
nr);
}
if (type & IORESOURCE_IO) {
if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
(yenta_search_res(socket, res, BRIDGE_IO_MIN)))
return 1;
} else {
if (type & IORESOURCE_PREFETCH) {
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
return 1;
/* Approximating prefetchable by non-prefetchable */
res->flags = IORESOURCE_MEM;
}
if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
(yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
return 1;
}
dev_info(&dev->dev,
"no resource of type %x available, trying to continue...\n",
type);
res->start = res->end = res->flags = 0;
return 0;
}
static void yenta_free_res(struct yenta_socket *socket, int nr)
{
struct pci_dev *dev = socket->dev;
struct resource *res;
res = &dev->resource[nr];
if (res->start != 0 && res->end != 0)
release_resource(res);
res->start = res->end = res->flags = 0;
}
/*
* Allocate the bridge mappings for the device..
*/
static void yenta_allocate_resources(struct yenta_socket *socket)
{
int program = 0;
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW,
IORESOURCE_IO,
PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW,
IORESOURCE_IO,
PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW,
IORESOURCE_MEM | IORESOURCE_PREFETCH,
PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW,
IORESOURCE_MEM,
PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
if (program)
pci_setup_cardbus(socket->dev->subordinate);
}
/*
* Free the bridge mappings for the device..
*/
static void yenta_free_resources(struct yenta_socket *socket)
{
yenta_free_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW);
yenta_free_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW);
yenta_free_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW);
yenta_free_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW);
}
/*
* Close it down - release our resources and go home..
*/
static void yenta_close(struct pci_dev *dev)
{
struct yenta_socket *sock = pci_get_drvdata(dev);
/* Remove the register attributes */
device_remove_file(&dev->dev, &dev_attr_yenta_registers);
/* we don't want a dying socket registered */
pcmcia_unregister_socket(&sock->socket);
/* Disable all events so we don't die in an IRQ storm */
cb_writel(sock, CB_SOCKET_MASK, 0x0);
exca_writeb(sock, I365_CSCINT, 0);
if (sock->cb_irq)
free_irq(sock->cb_irq, sock);
else
timer_shutdown_sync(&sock->poll_timer);
iounmap(sock->base);
yenta_free_resources(sock);
pci_release_regions(dev);
pci_disable_device(dev);
pci_set_drvdata(dev, NULL);
kfree(sock);
}
static struct pccard_operations yenta_socket_operations = {
.init = yenta_sock_init,
.suspend = yenta_sock_suspend,
.get_status = yenta_get_status,
.set_socket = yenta_set_socket,
.set_io_map = yenta_set_io_map,
.set_mem_map = yenta_set_mem_map,
};
#ifdef CONFIG_YENTA_TI
#include "ti113x.h"
#endif
#ifdef CONFIG_YENTA_RICOH
#include "ricoh.h"
#endif
#ifdef CONFIG_YENTA_TOSHIBA
#include "topic.h"
#endif
#ifdef CONFIG_YENTA_O2
#include "o2micro.h"
#endif
enum {
CARDBUS_TYPE_DEFAULT = -1,
CARDBUS_TYPE_TI,
CARDBUS_TYPE_TI113X,
CARDBUS_TYPE_TI12XX,
CARDBUS_TYPE_TI1250,
CARDBUS_TYPE_RICOH,
CARDBUS_TYPE_TOPIC95,
CARDBUS_TYPE_TOPIC97,
CARDBUS_TYPE_O2MICRO,
CARDBUS_TYPE_ENE,
};
/*
* Different cardbus controllers have slightly different
* initialization sequences etc details. List them here..
*/
static struct cardbus_type cardbus_type[] = {
#ifdef CONFIG_YENTA_TI
[CARDBUS_TYPE_TI] = {
.override = ti_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
[CARDBUS_TYPE_TI113X] = {
.override = ti113x_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
[CARDBUS_TYPE_TI12XX] = {
.override = ti12xx_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
[CARDBUS_TYPE_TI1250] = {
.override = ti1250_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
[CARDBUS_TYPE_ENE] = {
.override = ene_override,
.save_state = ti_save_state,
.restore_state = ti_restore_state,
.sock_init = ti_init,
},
#endif
#ifdef CONFIG_YENTA_RICOH
[CARDBUS_TYPE_RICOH] = {
.override = ricoh_override,
.save_state = ricoh_save_state,
.restore_state = ricoh_restore_state,
},
#endif
#ifdef CONFIG_YENTA_TOSHIBA
[CARDBUS_TYPE_TOPIC95] = {
.override = topic95_override,
},
[CARDBUS_TYPE_TOPIC97] = {
.override = topic97_override,
},
#endif
#ifdef CONFIG_YENTA_O2
[CARDBUS_TYPE_O2MICRO] = {
.override = o2micro_override,
.restore_state = o2micro_restore_state,
},
#endif
};
static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
{
int i;
unsigned long val;
u32 mask;
u8 reg;
/*
* Probe for usable interrupts using the force
* register to generate bogus card status events.
*/
cb_writel(socket, CB_SOCKET_EVENT, -1);
cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
reg = exca_readb(socket, I365_CSCINT);
exca_writeb(socket, I365_CSCINT, 0);
val = probe_irq_on() & isa_irq_mask;
for (i = 1; i < 16; i++) {
if (!((val >> i) & 1))
continue;
exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
udelay(100);
cb_writel(socket, CB_SOCKET_EVENT, -1);
}
cb_writel(socket, CB_SOCKET_MASK, 0);
exca_writeb(socket, I365_CSCINT, reg);
mask = probe_irq_mask(val) & 0xffff;
return mask;
}
/*
* yenta PCI irq probing.
* currently only used in the TI/EnE initialization code
*/
#ifdef CONFIG_YENTA_TI
/* interrupt handler, only used during probing */
static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
{
struct yenta_socket *socket = (struct yenta_socket *) dev_id;
u8 csc;
u32 cb_event;
/* Clear interrupt status for the event */
cb_event = cb_readl(socket, CB_SOCKET_EVENT);
cb_writel(socket, CB_SOCKET_EVENT, -1);
csc = exca_readb(socket, I365_CSC);
if (cb_event || csc) {
socket->probe_status = 1;
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/* probes the PCI interrupt, use only on override functions */
static int yenta_probe_cb_irq(struct yenta_socket *socket)
{
u8 reg = 0;
if (!socket->cb_irq)
return -1;
socket->probe_status = 0;
if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
dev_warn(&socket->dev->dev,
"request_irq() in yenta_probe_cb_irq() failed!\n");
return -1;
}
/* generate interrupt, wait */
if (!socket->dev->irq)
reg = exca_readb(socket, I365_CSCINT);
exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG);
cb_writel(socket, CB_SOCKET_EVENT, -1);
cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
msleep(100);
/* disable interrupts */
cb_writel(socket, CB_SOCKET_MASK, 0);
exca_writeb(socket, I365_CSCINT, reg);
cb_writel(socket, CB_SOCKET_EVENT, -1);
exca_readb(socket, I365_CSC);
free_irq(socket->cb_irq, socket);
return (int) socket->probe_status;
}
#endif /* CONFIG_YENTA_TI */
/*
* Set static data that doesn't need re-initializing..
*/
static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
{
socket->socket.pci_irq = socket->cb_irq;
if (isa_probe)
socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
else
socket->socket.irq_mask = 0;
dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n",
socket->socket.irq_mask, socket->cb_irq);
}
/*
* Initialize the standard cardbus registers
*/
static void yenta_config_init(struct yenta_socket *socket)
{
u16 bridge;
struct pci_dev *dev = socket->dev;
struct pci_bus_region region;
pcibios_resource_to_bus(socket->dev->bus, ®ion, &dev->resource[0]);
config_writel(socket, CB_LEGACY_MODE_BASE, 0);
config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
config_writew(socket, PCI_COMMAND,
PCI_COMMAND_IO |
PCI_COMMAND_MEMORY |
PCI_COMMAND_MASTER |
PCI_COMMAND_WAIT);
/* MAGIC NUMBERS! Fixme */
config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4);
config_writeb(socket, PCI_LATENCY_TIMER, 168);
config_writel(socket, PCI_PRIMARY_BUS,
(176 << 24) | /* sec. latency timer */
((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */
((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */
dev->subordinate->primary); /* primary bus */
/*
* Set up the bridging state:
* - enable write posting.
* - memory window 0 prefetchable, window 1 non-prefetchable
* - PCI interrupts enabled if a PCI interrupt exists..
*/
bridge = config_readw(socket, CB_BRIDGE_CONTROL);
bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
config_writew(socket, CB_BRIDGE_CONTROL, bridge);
}
/**
* yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
* @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
*
* Checks if devices on the bus which the CardBus bridge bridges to would be
* invisible during PCI scans because of a misconfigured subordinate number
* of the parent brige - some BIOSes seem to be too lazy to set it right.
* Does the fixup carefully by checking how far it can go without conflicts.
* See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
*/
static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
{
struct pci_bus *sibling;
unsigned char upper_limit;
/*
* We only check and fix the parent bridge: All systems which need
* this fixup that have been reviewed are laptops and the only bridge
* which needed fixing was the parent bridge of the CardBus bridge:
*/
struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
/* Check bus numbers are already set up correctly: */
if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end)
return; /* The subordinate number is ok, nothing to do */
if (!bridge_to_fix->parent)
return; /* Root bridges are ok */
/* stay within the limits of the bus range of the parent: */
upper_limit = bridge_to_fix->parent->busn_res.end;
/* check the bus ranges of all sibling bridges to prevent overlap */
list_for_each_entry(sibling, &bridge_to_fix->parent->children,
node) {
/*
* If the sibling has a higher secondary bus number
* and it's secondary is equal or smaller than our
* current upper limit, set the new upper limit to
* the bus number below the sibling's range:
*/
if (sibling->busn_res.start > bridge_to_fix->busn_res.end
&& sibling->busn_res.start <= upper_limit)
upper_limit = sibling->busn_res.start - 1;
}
/* Show that the wanted subordinate number is not possible: */
if (cardbus_bridge->busn_res.end > upper_limit)
dev_warn(&cardbus_bridge->dev,
"Upper limit for fixing this bridge's parent bridge: #%02x\n",
upper_limit);
/* If we have room to increase the bridge's subordinate number, */
if (bridge_to_fix->busn_res.end < upper_limit) {
/* use the highest number of the hidden bus, within limits */
unsigned char subordinate_to_assign =
min_t(int, cardbus_bridge->busn_res.end, upper_limit);
dev_info(&bridge_to_fix->dev,
"Raising subordinate bus# of parent bus (#%02x) from #%02x to #%02x\n",
bridge_to_fix->number,
(int)bridge_to_fix->busn_res.end,
subordinate_to_assign);
/* Save the new subordinate in the bus struct of the bridge */
bridge_to_fix->busn_res.end = subordinate_to_assign;
/* and update the PCI config space with the new subordinate */
pci_write_config_byte(bridge_to_fix->self,
PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end);
}
}
/*
* Initialize a cardbus controller. Make sure we have a usable
* interrupt, and that we can map the cardbus area. Fill in the
* socket information structure..
*/
static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
struct yenta_socket *socket;
int ret;
/*
* If we failed to assign proper bus numbers for this cardbus
* controller during PCI probe, its subordinate pci_bus is NULL.
* Bail out if so.
*/
if (!dev->subordinate) {
dev_err(&dev->dev, "no bus associated! (try 'pci=assign-busses')\n");
return -ENODEV;
}
socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
if (!socket)
return -ENOMEM;
/* prepare pcmcia_socket */
socket->socket.ops = ¥ta_socket_operations;
socket->socket.resource_ops = &pccard_nonstatic_ops;
socket->socket.dev.parent = &dev->dev;
socket->socket.driver_data = socket;
socket->socket.owner = THIS_MODULE;
socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
socket->socket.map_size = 0x1000;
socket->socket.cb_dev = dev;
/* prepare struct yenta_socket */
socket->dev = dev;
pci_set_drvdata(dev, socket);
/*
* Do some basic sanity checking..
*/
if (pci_enable_device(dev)) {
ret = -EBUSY;
goto free;
}
ret = pci_request_regions(dev, "yenta_socket");
if (ret)
goto disable;
if (!pci_resource_start(dev, 0)) {
dev_err(&dev->dev, "No cardbus resource!\n");
ret = -ENODEV;
goto release;
}
/*
* Ok, start setup.. Map the cardbus registers,
* and request the IRQ.
*/
socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
if (!socket->base) {
ret = -ENOMEM;
goto release;
}
/*
* report the subsystem vendor and device for help debugging
* the irq stuff...
*/
dev_info(&dev->dev, "CardBus bridge found [%04x:%04x]\n",
dev->subsystem_vendor, dev->subsystem_device);
yenta_config_init(socket);
/* Disable all events */
cb_writel(socket, CB_SOCKET_MASK, 0x0);
/* Set up the bridge regions.. */
yenta_allocate_resources(socket);
socket->cb_irq = dev->irq;
/* Do we have special options for the device? */
if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
id->driver_data < ARRAY_SIZE(cardbus_type)) {
socket->type = &cardbus_type[id->driver_data];
ret = socket->type->override(socket);
if (ret < 0)
goto unmap;
}
/* We must finish initialization here */
if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
/* No IRQ or request_irq failed. Poll */
socket->cb_irq = 0; /* But zero is a valid IRQ number. */
timer_setup(&socket->poll_timer, yenta_interrupt_wrapper, 0);
mod_timer(&socket->poll_timer, jiffies + HZ);
dev_info(&dev->dev,
"no PCI IRQ, CardBus support disabled for this socket.\n");
dev_info(&dev->dev,
"check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
} else {
socket->socket.features |= SS_CAP_CARDBUS;
}
/* Figure out what the dang thing can do for the PCMCIA layer... */
yenta_interrogate(socket);
yenta_get_socket_capabilities(socket, isa_interrupts);
dev_info(&dev->dev, "Socket status: %08x\n",
cb_readl(socket, CB_SOCKET_STATE));
yenta_fixup_parent_bridge(dev->subordinate);
/* Register it with the pcmcia layer.. */
ret = pcmcia_register_socket(&socket->socket);
if (ret)
goto free_irq;
/* Add the yenta register attributes */
ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
if (ret)
goto unregister_socket;
return ret;
/* error path... */
unregister_socket:
pcmcia_unregister_socket(&socket->socket);
free_irq:
if (socket->cb_irq)
free_irq(socket->cb_irq, socket);
else
timer_shutdown_sync(&socket->poll_timer);
unmap:
iounmap(socket->base);
yenta_free_resources(socket);
release:
pci_release_regions(dev);
disable:
pci_disable_device(dev);
free:
pci_set_drvdata(dev, NULL);
kfree(socket);
return ret;
}
#ifdef CONFIG_PM_SLEEP
static int yenta_dev_suspend_noirq(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct yenta_socket *socket = pci_get_drvdata(pdev);
if (!socket)
return 0;
if (socket->type && socket->type->save_state)
socket->type->save_state(socket);
pci_save_state(pdev);
pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]);
pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]);
pci_disable_device(pdev);
return 0;
}
static int yenta_dev_resume_noirq(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct yenta_socket *socket = pci_get_drvdata(pdev);
int ret;
if (!socket)
return 0;
pci_write_config_dword(pdev, 16*4, socket->saved_state[0]);
pci_write_config_dword(pdev, 17*4, socket->saved_state[1]);
ret = pci_enable_device(pdev);
if (ret)
return ret;
pci_set_master(pdev);
if (socket->type && socket->type->restore_state)
socket->type->restore_state(socket);
return 0;
}
static const struct dev_pm_ops yenta_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(yenta_dev_suspend_noirq, yenta_dev_resume_noirq)
};
#define YENTA_PM_OPS (¥ta_pm_ops)
#else
#define YENTA_PM_OPS NULL
#endif
#define CB_ID(vend, dev, type) \
{ \
.vendor = vend, \
.device = dev, \
.subvendor = PCI_ANY_ID, \
.subdevice = PCI_ANY_ID, \
.class = PCI_CLASS_BRIDGE_CARDBUS << 8, \
.class_mask = ~0, \
.driver_data = CARDBUS_TYPE_##type, \
}
static const struct pci_device_id yenta_table[] = {
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
/*
* TBD: Check if these TI variants can use more
* advanced overrides instead. (I can't get the
* data sheets for these devices. --rmk)
*/
#ifdef CONFIG_YENTA_TI
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
#endif /* CONFIG_YENTA_TI */
#ifdef CONFIG_YENTA_RICOH
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
#endif
#ifdef CONFIG_YENTA_TOSHIBA
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
#endif
#ifdef CONFIG_YENTA_O2
CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
#endif
/* match any cardbus bridge */
CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
{ /* all zeroes */ }
};
MODULE_DEVICE_TABLE(pci, yenta_table);
static struct pci_driver yenta_cardbus_driver = {
.name = "yenta_cardbus",
.id_table = yenta_table,
.probe = yenta_probe,
.remove = yenta_close,
.driver.pm = YENTA_PM_OPS,
};
module_pci_driver(yenta_cardbus_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/pcmcia/yenta_socket.c |
// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pcmcia/sa1100_jornada720.c
*
* Jornada720 PCMCIA specific routines
*
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include "sa1111_generic.h"
/*
* Socket 0 power: GPIO A0
* Socket 0 3V: GPIO A2
* Socket 1 power: GPIO A1 & GPIO A3
* Socket 1 3V: GPIO A3
* Does Socket 1 3V actually do anything?
*/
enum {
J720_GPIO_PWR,
J720_GPIO_3V,
J720_GPIO_MAX,
};
struct jornada720_data {
struct gpio_desc *gpio[J720_GPIO_MAX];
};
static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
struct jornada720_data *j;
j = devm_kzalloc(dev, sizeof(*j), GFP_KERNEL);
if (!j)
return -ENOMEM;
j->gpio[J720_GPIO_PWR] = devm_gpiod_get(dev, skt->nr ? "s1-power" :
"s0-power", GPIOD_OUT_LOW);
if (IS_ERR(j->gpio[J720_GPIO_PWR]))
return PTR_ERR(j->gpio[J720_GPIO_PWR]);
j->gpio[J720_GPIO_3V] = devm_gpiod_get(dev, skt->nr ? "s1-3v" :
"s0-3v", GPIOD_OUT_LOW);
if (IS_ERR(j->gpio[J720_GPIO_3V]))
return PTR_ERR(j->gpio[J720_GPIO_3V]);
skt->driver_data = j;
return 0;
}
static int
jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct jornada720_data *j = skt->driver_data;
DECLARE_BITMAP(values, J720_GPIO_MAX) = { 0, };
int ret;
printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
skt->nr, state->Vcc, state->Vpp);
switch (skt->nr) {
case 0:
switch (state->Vcc) {
default:
case 0:
__assign_bit(J720_GPIO_PWR, values, 0);
__assign_bit(J720_GPIO_3V, values, 0);
break;
case 33:
__assign_bit(J720_GPIO_PWR, values, 1);
__assign_bit(J720_GPIO_3V, values, 1);
break;
case 50:
__assign_bit(J720_GPIO_PWR, values, 1);
__assign_bit(J720_GPIO_3V, values, 0);
break;
}
break;
case 1:
switch (state->Vcc) {
default:
case 0:
__assign_bit(J720_GPIO_PWR, values, 0);
__assign_bit(J720_GPIO_3V, values, 0);
break;
case 33:
case 50:
__assign_bit(J720_GPIO_PWR, values, 1);
__assign_bit(J720_GPIO_3V, values, 1);
break;
}
break;
default:
return -1;
}
if (state->Vpp != state->Vcc && state->Vpp != 0) {
printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
__func__, state->Vpp);
return -EPERM;
}
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0)
ret = gpiod_set_array_value_cansleep(J720_GPIO_MAX, j->gpio,
NULL, values);
return ret;
}
static struct pcmcia_low_level jornada720_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = jornada720_pcmcia_hw_init,
.configure_socket = jornada720_pcmcia_configure_socket,
.first = 0,
.nr = 2,
};
int pcmcia_jornada720_init(struct sa1111_dev *sadev)
{
/* Fixme: why messing around with SA11x0's GPIO1? */
GRER |= 0x00000002;
sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
return sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
sa11xx_drv_pcmcia_add_one);
}
| linux-master | drivers/pcmcia/sa1111_jornada720.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* rsrc_mgr.c -- Resource management routines and/or wrappers
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
int static_init(struct pcmcia_socket *s)
{
/* the good thing about SS_CAP_STATIC_MAP sockets is
* that they don't need a resource database */
s->resource_setup_done = 1;
return 0;
}
struct resource *pcmcia_make_resource(resource_size_t start,
resource_size_t end,
unsigned long flags, const char *name)
{
struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
if (res) {
res->name = name;
res->start = start;
res->end = start + end - 1;
res->flags = flags;
}
return res;
}
static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
unsigned int *base, unsigned int num,
unsigned int align, struct resource **parent)
{
if (!s->io_offset)
return -EINVAL;
*base = s->io_offset | (*base & 0x0fff);
*parent = NULL;
return 0;
}
struct pccard_resource_ops pccard_static_ops = {
.validate_mem = NULL,
.find_io = static_find_io,
.find_mem = NULL,
.init = static_init,
.exit = NULL,
};
EXPORT_SYMBOL(pccard_static_ops);
MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
MODULE_LICENSE("GPL");
MODULE_ALIAS("rsrc_nonstatic");
| linux-master | drivers/pcmcia/rsrc_mgr.c |
/*
* Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
*
* Based on the i82092.c driver.
*
* This software may be used and distributed according to the terms of
* the GNU General Public License, incorporated herein by reference.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/io.h>
#include <pcmcia/ss.h>
#include "pd6729.h"
#include "i82365.h"
#include "cirrus.h"
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
MODULE_AUTHOR("Jun Komuro <[email protected]>");
#define MAX_SOCKETS 2
/*
* simple helper functions
* External clock time, in nanoseconds. 120 ns = 8.33 MHz
*/
#define to_cycles(ns) ((ns)/120)
#ifndef NO_IRQ
#define NO_IRQ ((unsigned int)(0))
#endif
/*
* PARAMETERS
* irq_mode=n
* Specifies the interrupt delivery mode. The default (1) is to use PCI
* interrupts; a value of 0 selects ISA interrupts. This must be set for
* correct operation of PCI card readers.
*/
static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
module_param(irq_mode, int, 0444);
MODULE_PARM_DESC(irq_mode,
"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
static DEFINE_SPINLOCK(port_lock);
/* basic value read/write functions */
static unsigned char indirect_read(struct pd6729_socket *socket,
unsigned short reg)
{
unsigned long port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg += socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
val = inb(port + 1);
spin_unlock_irqrestore(&port_lock, flags);
return val;
}
static unsigned short indirect_read16(struct pd6729_socket *socket,
unsigned short reg)
{
unsigned long port;
unsigned short tmp;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
tmp = inb(port + 1);
reg++;
outb(reg, port);
tmp = tmp | (inb(port + 1) << 8);
spin_unlock_irqrestore(&port_lock, flags);
return tmp;
}
static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
unsigned char value)
{
unsigned long port;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
outb(value, port + 1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
unsigned char mask)
{
unsigned long port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
val = inb(port + 1);
val |= mask;
outb(reg, port);
outb(val, port + 1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
unsigned char mask)
{
unsigned long port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
val = inb(port + 1);
val &= ~mask;
outb(reg, port);
outb(val, port + 1);
spin_unlock_irqrestore(&port_lock, flags);
}
static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
unsigned short value)
{
unsigned long port;
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&port_lock, flags);
reg = reg + socket->number * 0x40;
port = socket->io_base;
outb(reg, port);
val = value & 255;
outb(val, port + 1);
reg++;
outb(reg, port);
val = value >> 8;
outb(val, port + 1);
spin_unlock_irqrestore(&port_lock, flags);
}
/* Interrupt handler functionality */
static irqreturn_t pd6729_interrupt(int irq, void *dev)
{
struct pd6729_socket *socket = (struct pd6729_socket *)dev;
int i;
int loopcount = 0;
int handled = 0;
unsigned int events, active = 0;
while (1) {
loopcount++;
if (loopcount > 20) {
printk(KERN_ERR "pd6729: infinite eventloop "
"in interrupt\n");
break;
}
active = 0;
for (i = 0; i < MAX_SOCKETS; i++) {
unsigned int csc;
/* card status change register */
csc = indirect_read(&socket[i], I365_CSC);
if (csc == 0) /* no events on this socket */
continue;
handled = 1;
events = 0;
if (csc & I365_CSC_DETECT) {
events |= SS_DETECT;
dev_vdbg(&socket[i].socket.dev,
"Card detected in socket %i!\n", i);
}
if (indirect_read(&socket[i], I365_INTCTL)
& I365_PC_IOCARD) {
/* For IO/CARDS, bit 0 means "read the card" */
events |= (csc & I365_CSC_STSCHG)
? SS_STSCHG : 0;
} else {
/* Check for battery/ready events */
events |= (csc & I365_CSC_BVD1)
? SS_BATDEAD : 0;
events |= (csc & I365_CSC_BVD2)
? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY)
? SS_READY : 0;
}
if (events)
pcmcia_parse_events(&socket[i].socket, events);
active |= events;
}
if (active == 0) /* no more events to handle */
break;
}
return IRQ_RETVAL(handled);
}
/* socket functions */
static void pd6729_interrupt_wrapper(struct timer_list *t)
{
struct pd6729_socket *socket = from_timer(socket, t, poll_timer);
pd6729_interrupt(0, (void *)socket);
mod_timer(&socket->poll_timer, jiffies + HZ);
}
static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
{
struct pd6729_socket *socket
= container_of(sock, struct pd6729_socket, socket);
unsigned int status;
unsigned int data;
struct pd6729_socket *t;
/* Interface Status Register */
status = indirect_read(socket, I365_STATUS);
*value = 0;
if ((status & I365_CS_DETECT) == I365_CS_DETECT)
*value |= SS_DETECT;
/*
* IO cards have a different meaning of bits 0,1
* Also notice the inverse-logic on the bits
*/
if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
/* IO card */
if (!(status & I365_CS_STSCHG))
*value |= SS_STSCHG;
} else {
/* non I/O card */
if (!(status & I365_CS_BVD1))
*value |= SS_BATDEAD;
if (!(status & I365_CS_BVD2))
*value |= SS_BATWARN;
}
if (status & I365_CS_WRPROT)
*value |= SS_WRPROT; /* card is write protected */
if (status & I365_CS_READY)
*value |= SS_READY; /* card is not busy */
if (status & I365_CS_POWERON)
*value |= SS_POWERON; /* power is applied to the card */
t = (socket->number) ? socket : socket + 1;
indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
data = indirect_read16(t, PD67_EXT_DATA);
*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
return 0;
}
static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
{
struct pd6729_socket *socket
= container_of(sock, struct pd6729_socket, socket);
unsigned char reg, data;
/* First, set the global controller options */
indirect_write(socket, I365_GBLCTL, 0x00);
indirect_write(socket, I365_GENCTL, 0x00);
/* Values for the IGENC register */
socket->card_irq = state->io_irq;
reg = 0;
/* The reset bit has "inverse" logic */
if (!(state->flags & SS_RESET))
reg |= I365_PC_RESET;
if (state->flags & SS_IOCARD)
reg |= I365_PC_IOCARD;
/* IGENC, Interrupt and General Control Register */
indirect_write(socket, I365_INTCTL, reg);
/* Power registers */
reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
if (state->flags & SS_PWR_AUTO) {
dev_dbg(&sock->dev, "Auto power\n");
reg |= I365_PWR_AUTO; /* automatic power mngmnt */
}
if (state->flags & SS_OUTPUT_ENA) {
dev_dbg(&sock->dev, "Power Enabled\n");
reg |= I365_PWR_OUT; /* enable power */
}
switch (state->Vcc) {
case 0:
break;
case 33:
dev_dbg(&sock->dev,
"setting voltage to Vcc to 3.3V on socket %i\n",
socket->number);
reg |= I365_VCC_5V;
indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
break;
case 50:
dev_dbg(&sock->dev,
"setting voltage to Vcc to 5V on socket %i\n",
socket->number);
reg |= I365_VCC_5V;
indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
break;
default:
dev_dbg(&sock->dev,
"pd6729_set_socket called with invalid VCC power "
"value: %i\n", state->Vcc);
return -EINVAL;
}
switch (state->Vpp) {
case 0:
dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
socket->number);
break;
case 33:
case 50:
dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
socket->number);
reg |= I365_VPP1_5V;
break;
case 120:
dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
reg |= I365_VPP1_12V;
break;
default:
dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
"invalid VPP power value: %i\n", state->Vpp);
return -EINVAL;
}
/* only write if changed */
if (reg != indirect_read(socket, I365_POWER))
indirect_write(socket, I365_POWER, reg);
if (irq_mode == 1) {
/* all interrupts are to be done as PCI interrupts */
data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
} else
data = 0;
indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
indirect_write(socket, PD67_EXT_DATA, data);
/* Enable specific interrupt events */
reg = 0x00;
if (state->csc_mask & SS_DETECT)
reg |= I365_CSC_DETECT;
if (state->flags & SS_IOCARD) {
if (state->csc_mask & SS_STSCHG)
reg |= I365_CSC_STSCHG;
} else {
if (state->csc_mask & SS_BATDEAD)
reg |= I365_CSC_BVD1;
if (state->csc_mask & SS_BATWARN)
reg |= I365_CSC_BVD2;
if (state->csc_mask & SS_READY)
reg |= I365_CSC_READY;
}
if (irq_mode == 1)
reg |= 0x30; /* management IRQ: PCI INTA# = "irq 3" */
indirect_write(socket, I365_CSCINT, reg);
reg = indirect_read(socket, I365_INTCTL);
if (irq_mode == 1)
reg |= 0x03; /* card IRQ: PCI INTA# = "irq 3" */
else
reg |= socket->card_irq;
indirect_write(socket, I365_INTCTL, reg);
/* now clear the (probably bogus) pending stuff by doing a dummy read */
(void)indirect_read(socket, I365_CSC);
return 0;
}
static int pd6729_set_io_map(struct pcmcia_socket *sock,
struct pccard_io_map *io)
{
struct pd6729_socket *socket
= container_of(sock, struct pd6729_socket, socket);
unsigned char map, ioctl;
map = io->map;
/* Check error conditions */
if (map > 1) {
dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
return -EINVAL;
}
/* Turn off the window before changing anything */
if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
/* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
io->start, io->stop);*/
/* write the new values */
indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
if (io->flags & MAP_0WS)
ioctl |= I365_IOCTL_0WS(map);
if (io->flags & MAP_16BIT)
ioctl |= I365_IOCTL_16BIT(map);
if (io->flags & MAP_AUTOSZ)
ioctl |= I365_IOCTL_IOCS16(map);
indirect_write(socket, I365_IOCTL, ioctl);
/* Turn the window back on if needed */
if (io->flags & MAP_ACTIVE)
indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
return 0;
}
static int pd6729_set_mem_map(struct pcmcia_socket *sock,
struct pccard_mem_map *mem)
{
struct pd6729_socket *socket
= container_of(sock, struct pd6729_socket, socket);
unsigned short base, i;
unsigned char map;
map = mem->map;
if (map > 4) {
dev_warn(&sock->dev, "invalid map requested\n");
return -EINVAL;
}
if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
dev_warn(&sock->dev, "invalid invalid address / speed\n");
return -EINVAL;
}
/* Turn off the window before changing anything */
if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
/* write the start address */
base = I365_MEM(map);
i = (mem->res->start >> 12) & 0x0fff;
if (mem->flags & MAP_16BIT)
i |= I365_MEM_16BIT;
if (mem->flags & MAP_0WS)
i |= I365_MEM_0WS;
indirect_write16(socket, base + I365_W_START, i);
/* write the stop address */
i = (mem->res->end >> 12) & 0x0fff;
switch (to_cycles(mem->speed)) {
case 0:
break;
case 1:
i |= I365_MEM_WS0;
break;
case 2:
i |= I365_MEM_WS1;
break;
default:
i |= I365_MEM_WS1 | I365_MEM_WS0;
break;
}
indirect_write16(socket, base + I365_W_STOP, i);
/* Take care of high byte */
indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
/* card start */
i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
if (mem->flags & MAP_WRPROT)
i |= I365_MEM_WRPROT;
if (mem->flags & MAP_ATTRIB) {
/* dev_dbg(&sock->dev, "requesting attribute memory for "
"socket %i\n", socket->number);*/
i |= I365_MEM_REG;
} else {
/* dev_dbg(&sock->dev, "requesting normal memory for "
"socket %i\n", socket->number);*/
}
indirect_write16(socket, base + I365_W_OFF, i);
/* Enable the window if necessary */
if (mem->flags & MAP_ACTIVE)
indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
return 0;
}
static int pd6729_init(struct pcmcia_socket *sock)
{
int i;
struct resource res = { .end = 0x0fff };
pccard_io_map io = { 0, 0, 0, 0, 1 };
pccard_mem_map mem = { .res = &res, };
pd6729_set_socket(sock, &dead_socket);
for (i = 0; i < 2; i++) {
io.map = i;
pd6729_set_io_map(sock, &io);
}
for (i = 0; i < 5; i++) {
mem.map = i;
pd6729_set_mem_map(sock, &mem);
}
return 0;
}
/* the pccard structure and its functions */
static struct pccard_operations pd6729_operations = {
.init = pd6729_init,
.get_status = pd6729_get_status,
.set_socket = pd6729_set_socket,
.set_io_map = pd6729_set_io_map,
.set_mem_map = pd6729_set_mem_map,
};
static irqreturn_t pd6729_test(int irq, void *dev)
{
pr_devel("-> hit on irq %d\n", irq);
return IRQ_HANDLED;
}
static int pd6729_check_irq(int irq)
{
int ret;
ret = request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x",
pd6729_test);
if (ret)
return -1;
free_irq(irq, pd6729_test);
return 0;
}
static u_int pd6729_isa_scan(void)
{
u_int mask0, mask = 0;
int i;
if (irq_mode == 1) {
printk(KERN_INFO "pd6729: PCI card interrupts, "
"PCI status changes\n");
return 0;
}
mask0 = PD67_MASK;
/* just find interrupts that aren't in use */
for (i = 0; i < 16; i++)
if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
mask |= (1 << i);
printk(KERN_INFO "pd6729: ISA irqs = ");
for (i = 0; i < 16; i++)
if (mask & (1<<i))
printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
if (mask == 0)
printk("none!");
else
printk(" polling status changes.\n");
return mask;
}
static int pd6729_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int i, j, ret;
u_int mask;
char configbyte;
struct pd6729_socket *socket;
socket = kcalloc(MAX_SOCKETS, sizeof(struct pd6729_socket),
GFP_KERNEL);
if (!socket) {
dev_warn(&dev->dev, "failed to kzalloc socket.\n");
return -ENOMEM;
}
ret = pci_enable_device(dev);
if (ret) {
dev_warn(&dev->dev, "failed to enable pci_device.\n");
goto err_out_free_mem;
}
if (!pci_resource_start(dev, 0)) {
dev_warn(&dev->dev, "refusing to load the driver as the "
"io_base is NULL.\n");
ret = -ENOMEM;
goto err_out_disable;
}
dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
"on irq %d\n",
(unsigned long long)pci_resource_start(dev, 0), dev->irq);
/*
* Since we have no memory BARs some firmware may not
* have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
*/
pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
if (!(configbyte & PCI_COMMAND_MEMORY)) {
dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
configbyte |= PCI_COMMAND_MEMORY;
pci_write_config_byte(dev, PCI_COMMAND, configbyte);
}
ret = pci_request_regions(dev, "pd6729");
if (ret) {
dev_warn(&dev->dev, "pci request region failed.\n");
goto err_out_disable;
}
if (dev->irq == NO_IRQ)
irq_mode = 0; /* fall back to ISA interrupt mode */
mask = pd6729_isa_scan();
if (irq_mode == 0 && mask == 0) {
dev_warn(&dev->dev, "no ISA interrupt is available.\n");
ret = -ENODEV;
goto err_out_free_res;
}
for (i = 0; i < MAX_SOCKETS; i++) {
socket[i].io_base = pci_resource_start(dev, 0);
socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
socket[i].socket.map_size = 0x1000;
socket[i].socket.irq_mask = mask;
socket[i].socket.pci_irq = dev->irq;
socket[i].socket.cb_dev = dev;
socket[i].socket.owner = THIS_MODULE;
socket[i].number = i;
socket[i].socket.ops = &pd6729_operations;
socket[i].socket.resource_ops = &pccard_nonstatic_ops;
socket[i].socket.dev.parent = &dev->dev;
socket[i].socket.driver_data = &socket[i];
}
pci_set_drvdata(dev, socket);
if (irq_mode == 1) {
/* Register the interrupt handler */
ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
"pd6729", socket);
if (ret) {
dev_err(&dev->dev, "Failed to register irq %d\n",
dev->irq);
goto err_out_free_res;
}
} else {
/* poll Card status change */
timer_setup(&socket->poll_timer, pd6729_interrupt_wrapper, 0);
mod_timer(&socket->poll_timer, jiffies + HZ);
}
for (i = 0; i < MAX_SOCKETS; i++) {
ret = pcmcia_register_socket(&socket[i].socket);
if (ret) {
dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
for (j = 0; j < i ; j++)
pcmcia_unregister_socket(&socket[j].socket);
goto err_out_free_res2;
}
}
return 0;
err_out_free_res2:
if (irq_mode == 1)
free_irq(dev->irq, socket);
else
timer_shutdown_sync(&socket->poll_timer);
err_out_free_res:
pci_release_regions(dev);
err_out_disable:
pci_disable_device(dev);
err_out_free_mem:
kfree(socket);
return ret;
}
static void pd6729_pci_remove(struct pci_dev *dev)
{
int i;
struct pd6729_socket *socket = pci_get_drvdata(dev);
for (i = 0; i < MAX_SOCKETS; i++) {
/* Turn off all interrupt sources */
indirect_write(&socket[i], I365_CSCINT, 0);
indirect_write(&socket[i], I365_INTCTL, 0);
pcmcia_unregister_socket(&socket[i].socket);
}
if (irq_mode == 1)
free_irq(dev->irq, socket);
else
timer_shutdown_sync(&socket->poll_timer);
pci_release_regions(dev);
pci_disable_device(dev);
kfree(socket);
}
static const struct pci_device_id pd6729_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6729) },
{ }
};
MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
static struct pci_driver pd6729_pci_driver = {
.name = "pd6729",
.id_table = pd6729_pci_ids,
.probe = pd6729_pci_probe,
.remove = pd6729_pci_remove,
};
module_pci_driver(pd6729_pci_driver);
| linux-master | drivers/pcmcia/pd6729.c |
/*======================================================================
Common support code for the PCMCIA control functionality of
integrated SOCs like the SA-11x0 and PXA2xx microprocessors.
The contents of this file are subject to the Mozilla Public
License Version 1.1 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
The initial developer of the original code is John G. Dorsey
<[email protected]>. Portions created by John G. Dorsey are
Copyright (C) 1999 John G. Dorsey. All Rights Reserved.
Alternatively, the contents of this file may be used under the
terms of the GNU Public License version 2 (the "GPL"), in which
case the provisions of the GPL are applicable instead of the
above. If you wish to allow the use of your version of this file
only under the terms of the GPL and not to allow others to use
your version of this file under the MPL, indicate your decision
by deleting the provisions above and replace them with the notice
and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this
file under either the MPL or the GPL.
======================================================================*/
#include <linux/cpufreq.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <linux/regulator/consumer.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/pci.h>
#include "soc_common.h"
static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev);
#ifdef CONFIG_PCMCIA_DEBUG
static int pc_debug;
module_param(pc_debug, int, 0644);
void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
int lvl, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
if (pc_debug > lvl) {
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
printk(KERN_DEBUG "skt%u: %s: %pV", skt->nr, func, &vaf);
va_end(args);
}
}
EXPORT_SYMBOL(soc_pcmcia_debug);
#endif
#define to_soc_pcmcia_socket(x) \
container_of(x, struct soc_pcmcia_socket, socket)
int soc_pcmcia_regulator_set(struct soc_pcmcia_socket *skt,
struct soc_pcmcia_regulator *r, int v)
{
bool on;
int ret;
if (!r->reg)
return 0;
on = v != 0;
if (r->on == on)
return 0;
if (on) {
ret = regulator_set_voltage(r->reg, v * 100000, v * 100000);
if (ret) {
int vout = regulator_get_voltage(r->reg) / 100000;
dev_warn(&skt->socket.dev,
"CS requested %s=%u.%uV, applying %u.%uV\n",
r == &skt->vcc ? "Vcc" : "Vpp",
v / 10, v % 10, vout / 10, vout % 10);
}
ret = regulator_enable(r->reg);
} else {
ret = regulator_disable(r->reg);
}
if (ret == 0)
r->on = on;
return ret;
}
EXPORT_SYMBOL_GPL(soc_pcmcia_regulator_set);
static unsigned short
calc_speed(unsigned short *spds, int num, unsigned short dflt)
{
unsigned short speed = 0;
int i;
for (i = 0; i < num; i++)
if (speed < spds[i])
speed = spds[i];
if (speed == 0)
speed = dflt;
return speed;
}
void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt,
struct soc_pcmcia_timing *timing)
{
timing->io =
calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
timing->mem =
calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
timing->attr =
calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
}
EXPORT_SYMBOL(soc_common_pcmcia_get_timing);
static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt,
unsigned int nr)
{
unsigned int i;
for (i = 0; i < nr; i++)
if (skt->stat[i].irq)
free_irq(skt->stat[i].irq, skt);
if (skt->ops->hw_shutdown)
skt->ops->hw_shutdown(skt);
clk_disable_unprepare(skt->clk);
}
static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
__soc_pcmcia_hw_shutdown(skt, ARRAY_SIZE(skt->stat));
}
int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt)
{
struct device *dev = skt->socket.dev.parent;
struct gpio_desc *desc;
int i;
for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
if (!skt->stat[i].name)
continue;
desc = devm_gpiod_get(dev, skt->stat[i].name, GPIOD_IN);
if (IS_ERR(desc)) {
dev_err(dev, "Failed to get GPIO for %s: %ld\n",
skt->stat[i].name, PTR_ERR(desc));
return PTR_ERR(desc);
}
skt->stat[i].desc = desc;
}
return 0;
}
EXPORT_SYMBOL_GPL(soc_pcmcia_request_gpiods);
static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int ret = 0, i;
ret = clk_prepare_enable(skt->clk);
if (ret)
return ret;
if (skt->ops->hw_init) {
ret = skt->ops->hw_init(skt);
if (ret) {
clk_disable_unprepare(skt->clk);
return ret;
}
}
for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
if (gpio_is_valid(skt->stat[i].gpio)) {
unsigned long flags = GPIOF_IN;
/* CD is active low by default */
if (i == SOC_STAT_CD)
flags |= GPIOF_ACTIVE_LOW;
ret = devm_gpio_request_one(skt->socket.dev.parent,
skt->stat[i].gpio, flags,
skt->stat[i].name);
if (ret) {
__soc_pcmcia_hw_shutdown(skt, i);
return ret;
}
skt->stat[i].desc = gpio_to_desc(skt->stat[i].gpio);
}
if (i < SOC_STAT_VS1 && skt->stat[i].desc) {
int irq = gpiod_to_irq(skt->stat[i].desc);
if (irq > 0) {
if (i == SOC_STAT_RDY)
skt->socket.pci_irq = irq;
else
skt->stat[i].irq = irq;
}
}
if (skt->stat[i].irq) {
ret = request_irq(skt->stat[i].irq,
soc_common_pcmcia_interrupt,
IRQF_TRIGGER_NONE,
skt->stat[i].name, skt);
if (ret) {
__soc_pcmcia_hw_shutdown(skt, i);
return ret;
}
}
}
return ret;
}
static void soc_pcmcia_hw_enable(struct soc_pcmcia_socket *skt)
{
int i;
for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
if (skt->stat[i].irq) {
irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_RISING);
irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_BOTH);
}
}
static void soc_pcmcia_hw_disable(struct soc_pcmcia_socket *skt)
{
int i;
for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
if (skt->stat[i].irq)
irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_NONE);
}
/*
* The CF 3.0 specification says that cards tie VS1 to ground and leave
* VS2 open. Many implementations do not wire up the VS signals, so we
* provide hard-coded values as per the CF 3.0 spec.
*/
void soc_common_cf_socket_state(struct soc_pcmcia_socket *skt,
struct pcmcia_state *state)
{
state->vs_3v = 1;
}
EXPORT_SYMBOL_GPL(soc_common_cf_socket_state);
static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
{
struct pcmcia_state state;
unsigned int stat;
memset(&state, 0, sizeof(struct pcmcia_state));
/* Make battery voltage state report 'good' */
state.bvd1 = 1;
state.bvd2 = 1;
if (skt->stat[SOC_STAT_CD].desc)
state.detect = !!gpiod_get_value(skt->stat[SOC_STAT_CD].desc);
if (skt->stat[SOC_STAT_RDY].desc)
state.ready = !!gpiod_get_value(skt->stat[SOC_STAT_RDY].desc);
if (skt->stat[SOC_STAT_BVD1].desc)
state.bvd1 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD1].desc);
if (skt->stat[SOC_STAT_BVD2].desc)
state.bvd2 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD2].desc);
if (skt->stat[SOC_STAT_VS1].desc)
state.vs_3v = !!gpiod_get_value(skt->stat[SOC_STAT_VS1].desc);
if (skt->stat[SOC_STAT_VS2].desc)
state.vs_Xv = !!gpiod_get_value(skt->stat[SOC_STAT_VS2].desc);
skt->ops->socket_state(skt, &state);
stat = state.detect ? SS_DETECT : 0;
stat |= state.ready ? SS_READY : 0;
stat |= state.wrprot ? SS_WRPROT : 0;
stat |= state.vs_3v ? SS_3VCARD : 0;
stat |= state.vs_Xv ? SS_XVCARD : 0;
/* The power status of individual sockets is not available
* explicitly from the hardware, so we just remember the state
* and regurgitate it upon request:
*/
stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
if (skt->cs_state.flags & SS_IOCARD)
stat |= state.bvd1 ? 0 : SS_STSCHG;
else {
if (state.bvd1 == 0)
stat |= SS_BATDEAD;
else if (state.bvd2 == 0)
stat |= SS_BATWARN;
}
return stat;
}
/*
* soc_common_pcmcia_config_skt
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* Convert PCMCIA socket state to our socket configure structure.
*/
static int soc_common_pcmcia_config_skt(
struct soc_pcmcia_socket *skt, socket_state_t *state)
{
int ret;
ret = skt->ops->configure_socket(skt, state);
if (ret < 0) {
pr_err("soc_common_pcmcia: unable to configure socket %d\n",
skt->nr);
/* restore the previous state */
WARN_ON(skt->ops->configure_socket(skt, &skt->cs_state));
return ret;
}
if (ret == 0) {
struct gpio_desc *descs[2];
DECLARE_BITMAP(values, 2);
int n = 0;
if (skt->gpio_reset) {
descs[n] = skt->gpio_reset;
__assign_bit(n++, values, state->flags & SS_RESET);
}
if (skt->gpio_bus_enable) {
descs[n] = skt->gpio_bus_enable;
__assign_bit(n++, values, state->flags & SS_OUTPUT_ENA);
}
if (n)
gpiod_set_array_value_cansleep(n, descs, NULL, values);
/*
* This really needs a better solution. The IRQ
* may or may not be claimed by the driver.
*/
if (skt->irq_state != 1 && state->io_irq) {
skt->irq_state = 1;
irq_set_irq_type(skt->socket.pci_irq,
IRQ_TYPE_EDGE_FALLING);
} else if (skt->irq_state == 1 && state->io_irq == 0) {
skt->irq_state = 0;
irq_set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
}
skt->cs_state = *state;
}
return ret;
}
/* soc_common_pcmcia_sock_init()
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* (Re-)Initialise the socket, turning on status interrupts
* and PCMCIA bus. This must wait for power to stabilise
* so that the card status signals report correctly.
*
* Returns: 0
*/
static int soc_common_pcmcia_sock_init(struct pcmcia_socket *sock)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
debug(skt, 2, "initializing socket\n");
if (skt->ops->socket_init)
skt->ops->socket_init(skt);
soc_pcmcia_hw_enable(skt);
return 0;
}
/*
* soc_common_pcmcia_suspend()
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* Remove power on the socket, disable IRQs from the card.
* Turn off status interrupts, and disable the PCMCIA bus.
*
* Returns: 0
*/
static int soc_common_pcmcia_suspend(struct pcmcia_socket *sock)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
debug(skt, 2, "suspending socket\n");
soc_pcmcia_hw_disable(skt);
if (skt->ops->socket_suspend)
skt->ops->socket_suspend(skt);
return 0;
}
static DEFINE_SPINLOCK(status_lock);
static void soc_common_check_status(struct soc_pcmcia_socket *skt)
{
unsigned int events;
debug(skt, 4, "entering PCMCIA monitoring thread\n");
do {
unsigned int status;
unsigned long flags;
status = soc_common_pcmcia_skt_state(skt);
spin_lock_irqsave(&status_lock, flags);
events = (status ^ skt->status) & skt->cs_state.csc_mask;
skt->status = status;
spin_unlock_irqrestore(&status_lock, flags);
debug(skt, 4, "events: %s%s%s%s%s%s\n",
events == 0 ? "<NONE>" : "",
events & SS_DETECT ? "DETECT " : "",
events & SS_READY ? "READY " : "",
events & SS_BATDEAD ? "BATDEAD " : "",
events & SS_BATWARN ? "BATWARN " : "",
events & SS_STSCHG ? "STSCHG " : "");
if (events)
pcmcia_parse_events(&skt->socket, events);
} while (events);
}
/* Let's poll for events in addition to IRQs since IRQ only is unreliable... */
static void soc_common_pcmcia_poll_event(struct timer_list *t)
{
struct soc_pcmcia_socket *skt = from_timer(skt, t, poll_timer);
debug(skt, 4, "polling for events\n");
mod_timer(&skt->poll_timer, jiffies + SOC_PCMCIA_POLL_PERIOD);
soc_common_check_status(skt);
}
/*
* Service routine for socket driver interrupts (requested by the
* low-level PCMCIA init() operation via soc_common_pcmcia_thread()).
* The actual interrupt-servicing work is performed by
* soc_common_pcmcia_thread(), largely because the Card Services event-
* handling code performs scheduling operations which cannot be
* executed from within an interrupt context.
*/
static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev)
{
struct soc_pcmcia_socket *skt = dev;
debug(skt, 3, "servicing IRQ %d\n", irq);
soc_common_check_status(skt);
return IRQ_HANDLED;
}
/*
* Implements the get_status() operation for the in-kernel PCMCIA
* service (formerly SS_GetStatus in Card Services). Essentially just
* fills in bits in `status' according to internal driver state or
* the value of the voltage detect chipselect register.
*
* As a debugging note, during card startup, the PCMCIA core issues
* three set_socket() commands in a row the first with RESET deasserted,
* the second with RESET asserted, and the last with RESET deasserted
* again. Following the third set_socket(), a get_status() command will
* be issued. The kernel is looking for the SS_READY flag (see
* setup_socket(), reset_socket(), and unreset_socket() in cs.c).
*
* Returns: 0
*/
static int
soc_common_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
skt->status = soc_common_pcmcia_skt_state(skt);
*status = skt->status;
return 0;
}
/*
* Implements the set_socket() operation for the in-kernel PCMCIA
* service (formerly SS_SetSocket in Card Services). We more or
* less punt all of this work and let the kernel handle the details
* of power configuration, reset, &c. We also record the value of
* `state' in order to regurgitate it to the PCMCIA core later.
*/
static int soc_common_pcmcia_set_socket(
struct pcmcia_socket *sock, socket_state_t *state)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
debug(skt, 2, "mask: %s%s%s%s%s%s flags: %s%s%s%s%s%s Vcc %d Vpp %d irq %d\n",
(state->csc_mask == 0) ? "<NONE> " : "",
(state->csc_mask & SS_DETECT) ? "DETECT " : "",
(state->csc_mask & SS_READY) ? "READY " : "",
(state->csc_mask & SS_BATDEAD) ? "BATDEAD " : "",
(state->csc_mask & SS_BATWARN) ? "BATWARN " : "",
(state->csc_mask & SS_STSCHG) ? "STSCHG " : "",
(state->flags == 0) ? "<NONE> " : "",
(state->flags & SS_PWR_AUTO) ? "PWR_AUTO " : "",
(state->flags & SS_IOCARD) ? "IOCARD " : "",
(state->flags & SS_RESET) ? "RESET " : "",
(state->flags & SS_SPKR_ENA) ? "SPKR_ENA " : "",
(state->flags & SS_OUTPUT_ENA) ? "OUTPUT_ENA " : "",
state->Vcc, state->Vpp, state->io_irq);
return soc_common_pcmcia_config_skt(skt, state);
}
/*
* Implements the set_io_map() operation for the in-kernel PCMCIA
* service (formerly SS_SetIOMap in Card Services). We configure
* the map speed as requested, but override the address ranges
* supplied by Card Services.
*
* Returns: 0 on success, -1 on error
*/
static int soc_common_pcmcia_set_io_map(
struct pcmcia_socket *sock, struct pccard_io_map *map)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
unsigned short speed = map->speed;
debug(skt, 2, "map %u speed %u start 0x%08llx stop 0x%08llx\n",
map->map, map->speed, (unsigned long long)map->start,
(unsigned long long)map->stop);
debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
(map->flags == 0) ? "<NONE>" : "",
(map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
(map->flags & MAP_16BIT) ? "16BIT " : "",
(map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
(map->flags & MAP_0WS) ? "0WS " : "",
(map->flags & MAP_WRPROT) ? "WRPROT " : "",
(map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "",
(map->flags & MAP_PREFETCH) ? "PREFETCH " : "");
if (map->map >= MAX_IO_WIN) {
printk(KERN_ERR "%s(): map (%d) out of range\n", __func__,
map->map);
return -1;
}
if (map->flags & MAP_ACTIVE) {
if (speed == 0)
speed = SOC_PCMCIA_IO_ACCESS;
} else {
speed = 0;
}
skt->spd_io[map->map] = speed;
skt->ops->set_timing(skt);
if (map->stop == 1)
map->stop = PAGE_SIZE-1;
map->stop -= map->start;
map->stop += skt->socket.io_offset;
map->start = skt->socket.io_offset;
return 0;
}
/*
* Implements the set_mem_map() operation for the in-kernel PCMCIA
* service (formerly SS_SetMemMap in Card Services). We configure
* the map speed as requested, but override the address ranges
* supplied by Card Services.
*
* Returns: 0 on success, -ERRNO on error
*/
static int soc_common_pcmcia_set_mem_map(
struct pcmcia_socket *sock, struct pccard_mem_map *map)
{
struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
struct resource *res;
unsigned short speed = map->speed;
debug(skt, 2, "map %u speed %u card_start %08x\n",
map->map, map->speed, map->card_start);
debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
(map->flags == 0) ? "<NONE>" : "",
(map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
(map->flags & MAP_16BIT) ? "16BIT " : "",
(map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
(map->flags & MAP_0WS) ? "0WS " : "",
(map->flags & MAP_WRPROT) ? "WRPROT " : "",
(map->flags & MAP_ATTRIB) ? "ATTRIB " : "",
(map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "");
if (map->map >= MAX_WIN)
return -EINVAL;
if (map->flags & MAP_ACTIVE) {
if (speed == 0)
speed = 300;
} else {
speed = 0;
}
if (map->flags & MAP_ATTRIB) {
res = &skt->res_attr;
skt->spd_attr[map->map] = speed;
skt->spd_mem[map->map] = 0;
} else {
res = &skt->res_mem;
skt->spd_attr[map->map] = 0;
skt->spd_mem[map->map] = speed;
}
skt->ops->set_timing(skt);
map->static_start = res->start + map->card_start;
return 0;
}
struct bittbl {
unsigned int mask;
const char *name;
};
static struct bittbl status_bits[] = {
{ SS_WRPROT, "SS_WRPROT" },
{ SS_BATDEAD, "SS_BATDEAD" },
{ SS_BATWARN, "SS_BATWARN" },
{ SS_READY, "SS_READY" },
{ SS_DETECT, "SS_DETECT" },
{ SS_POWERON, "SS_POWERON" },
{ SS_STSCHG, "SS_STSCHG" },
{ SS_3VCARD, "SS_3VCARD" },
{ SS_XVCARD, "SS_XVCARD" },
};
static struct bittbl conf_bits[] = {
{ SS_PWR_AUTO, "SS_PWR_AUTO" },
{ SS_IOCARD, "SS_IOCARD" },
{ SS_RESET, "SS_RESET" },
{ SS_DMA_MODE, "SS_DMA_MODE" },
{ SS_SPKR_ENA, "SS_SPKR_ENA" },
{ SS_OUTPUT_ENA, "SS_OUTPUT_ENA" },
};
static void dump_bits(char **p, const char *prefix,
unsigned int val, struct bittbl *bits, int sz)
{
char *b = *p;
int i;
b += sprintf(b, "%-9s:", prefix);
for (i = 0; i < sz; i++)
if (val & bits[i].mask)
b += sprintf(b, " %s", bits[i].name);
*b++ = '\n';
*p = b;
}
/*
* Implements the /sys/class/pcmcia_socket/??/status file.
*
* Returns: the number of characters added to the buffer
*/
static ssize_t show_status(
struct device *dev, struct device_attribute *attr, char *buf)
{
struct soc_pcmcia_socket *skt =
container_of(dev, struct soc_pcmcia_socket, socket.dev);
char *p = buf;
p += sprintf(p, "slot : %d\n", skt->nr);
dump_bits(&p, "status", skt->status,
status_bits, ARRAY_SIZE(status_bits));
dump_bits(&p, "csc_mask", skt->cs_state.csc_mask,
status_bits, ARRAY_SIZE(status_bits));
dump_bits(&p, "cs_flags", skt->cs_state.flags,
conf_bits, ARRAY_SIZE(conf_bits));
p += sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
p += sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
p += sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq,
skt->socket.pci_irq);
if (skt->ops->show_timing)
p += skt->ops->show_timing(skt, p);
return p-buf;
}
static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
static struct pccard_operations soc_common_pcmcia_operations = {
.init = soc_common_pcmcia_sock_init,
.suspend = soc_common_pcmcia_suspend,
.get_status = soc_common_pcmcia_get_status,
.set_socket = soc_common_pcmcia_set_socket,
.set_io_map = soc_common_pcmcia_set_io_map,
.set_mem_map = soc_common_pcmcia_set_mem_map,
};
#ifdef CONFIG_CPU_FREQ
static int soc_common_pcmcia_cpufreq_nb(struct notifier_block *nb,
unsigned long val, void *data)
{
struct soc_pcmcia_socket *skt = container_of(nb, struct soc_pcmcia_socket, cpufreq_nb);
struct cpufreq_freqs *freqs = data;
return skt->ops->frequency_change(skt, val, freqs);
}
#endif
void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
const struct pcmcia_low_level *ops, struct device *dev)
{
int i;
skt->ops = ops;
skt->socket.owner = ops->owner;
skt->socket.dev.parent = dev;
skt->socket.pci_irq = NO_IRQ;
for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
skt->stat[i].gpio = -EINVAL;
}
EXPORT_SYMBOL(soc_pcmcia_init_one);
void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt)
{
del_timer_sync(&skt->poll_timer);
pcmcia_unregister_socket(&skt->socket);
#ifdef CONFIG_CPU_FREQ
if (skt->ops->frequency_change)
cpufreq_unregister_notifier(&skt->cpufreq_nb,
CPUFREQ_TRANSITION_NOTIFIER);
#endif
soc_pcmcia_hw_shutdown(skt);
/* should not be required; violates some lowlevel drivers */
soc_common_pcmcia_config_skt(skt, &dead_socket);
iounmap(PCI_IOBASE + skt->res_io_io.start);
release_resource(&skt->res_attr);
release_resource(&skt->res_mem);
release_resource(&skt->res_io);
release_resource(&skt->res_skt);
}
EXPORT_SYMBOL(soc_pcmcia_remove_one);
int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt)
{
int ret;
skt->cs_state = dead_socket;
timer_setup(&skt->poll_timer, soc_common_pcmcia_poll_event, 0);
skt->poll_timer.expires = jiffies + SOC_PCMCIA_POLL_PERIOD;
ret = request_resource(&iomem_resource, &skt->res_skt);
if (ret)
goto out_err_1;
ret = request_resource(&skt->res_skt, &skt->res_io);
if (ret)
goto out_err_2;
ret = request_resource(&skt->res_skt, &skt->res_mem);
if (ret)
goto out_err_3;
ret = request_resource(&skt->res_skt, &skt->res_attr);
if (ret)
goto out_err_4;
skt->res_io_io = (struct resource)
DEFINE_RES_IO_NAMED(skt->nr * 0x1000 + 0x10000, 0x1000,
"PCMCIA I/O");
ret = pci_remap_iospace(&skt->res_io_io, skt->res_io.start);
if (ret)
goto out_err_5;
/*
* We initialize default socket timing here, because
* we are not guaranteed to see a SetIOMap operation at
* runtime.
*/
skt->ops->set_timing(skt);
ret = soc_pcmcia_hw_init(skt);
if (ret)
goto out_err_6;
skt->socket.ops = &soc_common_pcmcia_operations;
skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
skt->socket.resource_ops = &pccard_static_ops;
skt->socket.irq_mask = 0;
skt->socket.map_size = PAGE_SIZE;
skt->socket.io_offset = (unsigned long)skt->res_io_io.start;
skt->status = soc_common_pcmcia_skt_state(skt);
#ifdef CONFIG_CPU_FREQ
if (skt->ops->frequency_change) {
skt->cpufreq_nb.notifier_call = soc_common_pcmcia_cpufreq_nb;
ret = cpufreq_register_notifier(&skt->cpufreq_nb,
CPUFREQ_TRANSITION_NOTIFIER);
if (ret < 0)
dev_err(skt->socket.dev.parent,
"unable to register CPU frequency change notifier for PCMCIA (%d)\n",
ret);
}
#endif
ret = pcmcia_register_socket(&skt->socket);
if (ret)
goto out_err_7;
ret = device_create_file(&skt->socket.dev, &dev_attr_status);
if (ret)
goto out_err_8;
return ret;
out_err_8:
del_timer_sync(&skt->poll_timer);
pcmcia_unregister_socket(&skt->socket);
out_err_7:
soc_pcmcia_hw_shutdown(skt);
out_err_6:
iounmap(PCI_IOBASE + skt->res_io_io.start);
out_err_5:
release_resource(&skt->res_attr);
out_err_4:
release_resource(&skt->res_mem);
out_err_3:
release_resource(&skt->res_io);
out_err_2:
release_resource(&skt->res_skt);
out_err_1:
return ret;
}
EXPORT_SYMBOL(soc_pcmcia_add_one);
MODULE_AUTHOR("John Dorsey <[email protected]>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: Common SoC support");
MODULE_LICENSE("Dual MPL/GPL");
| linux-master | drivers/pcmcia/soc_common.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* rsrc_nonstatic.c -- Resource management routines for !SS_CAP_STATIC_MAP sockets
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/timer.h>
#include <linux/pci.h>
#include <linux/device.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
/* moved to rsrc_mgr.c
MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
MODULE_LICENSE("GPL");
*/
/* Parameters that can be set with 'insmod' */
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
INT_MODULE_PARM(probe_mem, 1); /* memory probe? */
#ifdef CONFIG_PCMCIA_PROBE
INT_MODULE_PARM(probe_io, 1); /* IO port probe? */
INT_MODULE_PARM(mem_limit, 0x10000);
#endif
/* for io_db and mem_db */
struct resource_map {
u_long base, num;
struct resource_map *next;
};
struct socket_data {
struct resource_map mem_db;
struct resource_map mem_db_valid;
struct resource_map io_db;
};
#define MEM_PROBE_LOW (1 << 0)
#define MEM_PROBE_HIGH (1 << 1)
/* Action field */
#define REMOVE_MANAGED_RESOURCE 1
#define ADD_MANAGED_RESOURCE 2
/*======================================================================
Linux resource management extensions
======================================================================*/
static struct resource *
claim_region(struct pcmcia_socket *s, resource_size_t base,
resource_size_t size, int type, char *name)
{
struct resource *res, *parent;
parent = type & IORESOURCE_MEM ? &iomem_resource : &ioport_resource;
res = pcmcia_make_resource(base, size, type | IORESOURCE_BUSY, name);
if (res) {
#ifdef CONFIG_PCI
if (s && s->cb_dev)
parent = pci_find_parent_resource(s->cb_dev, res);
#endif
if (!parent || request_resource(parent, res)) {
kfree(res);
res = NULL;
}
}
return res;
}
static void free_region(struct resource *res)
{
if (res) {
release_resource(res);
kfree(res);
}
}
/*======================================================================
These manage the internal databases of available resources.
======================================================================*/
static int add_interval(struct resource_map *map, u_long base, u_long num)
{
struct resource_map *p, *q;
for (p = map; ; p = p->next) {
if ((p != map) && (p->base+p->num >= base)) {
p->num = max(num + base - p->base, p->num);
return 0;
}
if ((p->next == map) || (p->next->base > base+num-1))
break;
}
q = kmalloc(sizeof(struct resource_map), GFP_KERNEL);
if (!q) {
printk(KERN_WARNING "out of memory to update resources\n");
return -ENOMEM;
}
q->base = base; q->num = num;
q->next = p->next; p->next = q;
return 0;
}
/*====================================================================*/
static int sub_interval(struct resource_map *map, u_long base, u_long num)
{
struct resource_map *p, *q;
for (p = map; ; p = q) {
q = p->next;
if (q == map)
break;
if ((q->base+q->num > base) && (base+num > q->base)) {
if (q->base >= base) {
if (q->base+q->num <= base+num) {
/* Delete whole block */
p->next = q->next;
kfree(q);
/* don't advance the pointer yet */
q = p;
} else {
/* Cut off bit from the front */
q->num = q->base + q->num - base - num;
q->base = base + num;
}
} else if (q->base+q->num <= base+num) {
/* Cut off bit from the end */
q->num = base - q->base;
} else {
/* Split the block into two pieces */
p = kmalloc(sizeof(struct resource_map),
GFP_KERNEL);
if (!p) {
printk(KERN_WARNING "out of memory to update resources\n");
return -ENOMEM;
}
p->base = base+num;
p->num = q->base+q->num - p->base;
q->num = base - q->base;
p->next = q->next ; q->next = p;
}
}
}
return 0;
}
/*======================================================================
These routines examine a region of IO or memory addresses to
determine what ranges might be genuinely available.
======================================================================*/
#ifdef CONFIG_PCMCIA_PROBE
static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
unsigned int num)
{
struct resource *res;
struct socket_data *s_data = s->resource_data;
unsigned int i, j, bad;
int any;
u_char *b, hole, most;
dev_info(&s->dev, "cs: IO port probe %#x-%#x:", base, base+num-1);
/* First, what does a floating port look like? */
b = kzalloc(256, GFP_KERNEL);
if (!b) {
pr_cont("\n");
dev_err(&s->dev, "do_io_probe: unable to kmalloc 256 bytes\n");
return;
}
for (i = base, most = 0; i < base+num; i += 8) {
res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
if (!res)
continue;
hole = inb(i);
for (j = 1; j < 8; j++)
if (inb(i+j) != hole)
break;
free_region(res);
if ((j == 8) && (++b[hole] > b[most]))
most = hole;
if (b[most] == 127)
break;
}
kfree(b);
bad = any = 0;
for (i = base; i < base+num; i += 8) {
res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
if (!res) {
if (!any)
pr_cont(" excluding");
if (!bad)
bad = any = i;
continue;
}
for (j = 0; j < 8; j++)
if (inb(i+j) != most)
break;
free_region(res);
if (j < 8) {
if (!any)
pr_cont(" excluding");
if (!bad)
bad = any = i;
} else {
if (bad) {
sub_interval(&s_data->io_db, bad, i-bad);
pr_cont(" %#x-%#x", bad, i-1);
bad = 0;
}
}
}
if (bad) {
if ((num > 16) && (bad == base) && (i == base+num)) {
sub_interval(&s_data->io_db, bad, i-bad);
pr_cont(" nothing: probe failed.\n");
return;
} else {
sub_interval(&s_data->io_db, bad, i-bad);
pr_cont(" %#x-%#x", bad, i-1);
}
}
pr_cont("%s\n", !any ? " clean" : "");
}
#endif
/*======================================================================*/
/*
* readable() - iomem validation function for cards with a valid CIS
*/
static int readable(struct pcmcia_socket *s, struct resource *res,
unsigned int *count)
{
int ret = -EINVAL;
if (s->fake_cis) {
dev_dbg(&s->dev, "fake CIS is being used: can't validate mem\n");
return 0;
}
s->cis_mem.res = res;
s->cis_virt = ioremap(res->start, s->map_size);
if (s->cis_virt) {
mutex_unlock(&s->ops_mutex);
/* as we're only called from pcmcia.c, we're safe */
if (s->callback->validate)
ret = s->callback->validate(s, count);
/* invalidate mapping */
mutex_lock(&s->ops_mutex);
iounmap(s->cis_virt);
s->cis_virt = NULL;
}
s->cis_mem.res = NULL;
if ((ret) || (*count == 0))
return -EINVAL;
return 0;
}
/*
* checksum() - iomem validation function for simple memory cards
*/
static int checksum(struct pcmcia_socket *s, struct resource *res,
unsigned int *value)
{
pccard_mem_map map;
int i, a = 0, b = -1, d;
void __iomem *virt;
virt = ioremap(res->start, s->map_size);
if (virt) {
map.map = 0;
map.flags = MAP_ACTIVE;
map.speed = 0;
map.res = res;
map.card_start = 0;
s->ops->set_mem_map(s, &map);
/* Don't bother checking every word... */
for (i = 0; i < s->map_size; i += 44) {
d = readl(virt+i);
a += d;
b &= d;
}
map.flags = 0;
s->ops->set_mem_map(s, &map);
iounmap(virt);
}
if (b == -1)
return -EINVAL;
*value = a;
return 0;
}
/**
* do_validate_mem() - low level validate a memory region for PCMCIA use
* @s: PCMCIA socket to validate
* @base: start address of resource to check
* @size: size of resource to check
* @validate: validation function to use
*
* do_validate_mem() splits up the memory region which is to be checked
* into two parts. Both are passed to the @validate() function. If
* @validate() returns non-zero, or the value parameter to @validate()
* is zero, or the value parameter is different between both calls,
* the check fails, and -EINVAL is returned. Else, 0 is returned.
*/
static int do_validate_mem(struct pcmcia_socket *s,
unsigned long base, unsigned long size,
int (*validate)(struct pcmcia_socket *s,
struct resource *res,
unsigned int *value))
{
struct socket_data *s_data = s->resource_data;
struct resource *res1, *res2;
unsigned int info1 = 1, info2 = 1;
int ret = -EINVAL;
res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe");
res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM,
"PCMCIA memprobe");
if (res1 && res2) {
ret = 0;
if (validate) {
ret = validate(s, res1, &info1);
ret += validate(s, res2, &info2);
}
}
dev_dbg(&s->dev, "cs: memory probe 0x%06lx-0x%06lx: %pr %pr %u %u %u",
base, base+size-1, res1, res2, ret, info1, info2);
free_region(res2);
free_region(res1);
if ((ret) || (info1 != info2) || (info1 == 0))
return -EINVAL;
if (validate && !s->fake_cis) {
/* move it to the validated data set */
add_interval(&s_data->mem_db_valid, base, size);
sub_interval(&s_data->mem_db, base, size);
}
return 0;
}
/**
* do_mem_probe() - validate a memory region for PCMCIA use
* @s: PCMCIA socket to validate
* @base: start address of resource to check
* @num: size of resource to check
* @validate: validation function to use
* @fallback: validation function to use if validate fails
*
* do_mem_probe() checks a memory region for use by the PCMCIA subsystem.
* To do so, the area is split up into sensible parts, and then passed
* into the @validate() function. Only if @validate() and @fallback() fail,
* the area is marked as unavailable for use by the PCMCIA subsystem. The
* function returns the size of the usable memory area.
*/
static int do_mem_probe(struct pcmcia_socket *s, u_long base, u_long num,
int (*validate)(struct pcmcia_socket *s,
struct resource *res,
unsigned int *value),
int (*fallback)(struct pcmcia_socket *s,
struct resource *res,
unsigned int *value))
{
struct socket_data *s_data = s->resource_data;
u_long i, j, bad, fail, step;
dev_info(&s->dev, "cs: memory probe 0x%06lx-0x%06lx:",
base, base+num-1);
bad = fail = 0;
step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff);
/* don't allow too large steps */
if (step > 0x800000)
step = 0x800000;
/* cis_readable wants to map 2x map_size */
if (step < 2 * s->map_size)
step = 2 * s->map_size;
for (i = j = base; i < base+num; i = j + step) {
if (!fail) {
for (j = i; j < base+num; j += step) {
if (!do_validate_mem(s, j, step, validate))
break;
}
fail = ((i == base) && (j == base+num));
}
if ((fail) && (fallback)) {
for (j = i; j < base+num; j += step)
if (!do_validate_mem(s, j, step, fallback))
break;
}
if (i != j) {
if (!bad)
pr_cont(" excluding");
pr_cont(" %#05lx-%#05lx", i, j-1);
sub_interval(&s_data->mem_db, i, j-i);
bad += j-i;
}
}
pr_cont("%s\n", !bad ? " clean" : "");
return num - bad;
}
#ifdef CONFIG_PCMCIA_PROBE
/**
* inv_probe() - top-to-bottom search for one usuable high memory area
* @s: PCMCIA socket to validate
* @m: resource_map to check
*/
static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s)
{
struct socket_data *s_data = s->resource_data;
u_long ok;
if (m == &s_data->mem_db)
return 0;
ok = inv_probe(m->next, s);
if (ok) {
if (m->base >= 0x100000)
sub_interval(&s_data->mem_db, m->base, m->num);
return ok;
}
if (m->base < 0x100000)
return 0;
return do_mem_probe(s, m->base, m->num, readable, checksum);
}
/**
* validate_mem() - memory probe function
* @s: PCMCIA socket to validate
* @probe_mask: MEM_PROBE_LOW | MEM_PROBE_HIGH
*
* The memory probe. If the memory list includes a 64K-aligned block
* below 1MB, we probe in 64K chunks, and as soon as we accumulate at
* least mem_limit free space, we quit. Returns 0 on usuable ports.
*/
static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
{
struct resource_map *m, mm;
static unsigned char order[] = { 0xd0, 0xe0, 0xc0, 0xf0 };
unsigned long b, i, ok = 0;
struct socket_data *s_data = s->resource_data;
/* We do up to four passes through the list */
if (probe_mask & MEM_PROBE_HIGH) {
if (inv_probe(s_data->mem_db.next, s) > 0)
return 0;
if (s_data->mem_db_valid.next != &s_data->mem_db_valid)
return 0;
dev_notice(&s->dev,
"cs: warning: no high memory space available!\n");
return -ENODEV;
}
for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
mm = *m;
/* Only probe < 1 MB */
if (mm.base >= 0x100000)
continue;
if ((mm.base | mm.num) & 0xffff) {
ok += do_mem_probe(s, mm.base, mm.num, readable,
checksum);
continue;
}
/* Special probe for 64K-aligned block */
for (i = 0; i < 4; i++) {
b = order[i] << 12;
if ((b >= mm.base) && (b+0x10000 <= mm.base+mm.num)) {
if (ok >= mem_limit)
sub_interval(&s_data->mem_db, b, 0x10000);
else
ok += do_mem_probe(s, b, 0x10000,
readable, checksum);
}
}
}
if (ok > 0)
return 0;
return -ENODEV;
}
#else /* CONFIG_PCMCIA_PROBE */
/**
* validate_mem() - memory probe function
* @s: PCMCIA socket to validate
* @probe_mask: ignored
*
* Returns 0 on usuable ports.
*/
static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
{
struct resource_map *m, mm;
struct socket_data *s_data = s->resource_data;
unsigned long ok = 0;
for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
mm = *m;
ok += do_mem_probe(s, mm.base, mm.num, readable, checksum);
}
if (ok > 0)
return 0;
return -ENODEV;
}
#endif /* CONFIG_PCMCIA_PROBE */
/**
* pcmcia_nonstatic_validate_mem() - try to validate iomem for PCMCIA use
* @s: PCMCIA socket to validate
*
* This is tricky... when we set up CIS memory, we try to validate
* the memory window space allocations.
*
* Locking note: Must be called with skt_mutex held!
*/
static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s)
{
struct socket_data *s_data = s->resource_data;
unsigned int probe_mask = MEM_PROBE_LOW;
int ret;
if (!probe_mem || !(s->state & SOCKET_PRESENT))
return 0;
if (s->features & SS_CAP_PAGE_REGS)
probe_mask = MEM_PROBE_HIGH;
ret = validate_mem(s, probe_mask);
if (s_data->mem_db_valid.next != &s_data->mem_db_valid)
return 0;
return ret;
}
struct pcmcia_align_data {
unsigned long mask;
unsigned long offset;
struct resource_map *map;
};
static resource_size_t pcmcia_common_align(struct pcmcia_align_data *align_data,
resource_size_t start)
{
resource_size_t ret;
/*
* Ensure that we have the correct start address
*/
ret = (start & ~align_data->mask) + align_data->offset;
if (ret < start)
ret += align_data->mask + 1;
return ret;
}
static resource_size_t
pcmcia_align(void *align_data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pcmcia_align_data *data = align_data;
struct resource_map *m;
resource_size_t start;
start = pcmcia_common_align(data, res->start);
for (m = data->map->next; m != data->map; m = m->next) {
unsigned long map_start = m->base;
unsigned long map_end = m->base + m->num - 1;
/*
* If the lower resources are not available, try aligning
* to this entry of the resource database to see if it'll
* fit here.
*/
if (start < map_start)
start = pcmcia_common_align(data, map_start);
/*
* If we're above the area which was passed in, there's
* no point proceeding.
*/
if (start >= res->end)
break;
if ((start + size - 1) <= map_end)
break;
}
/*
* If we failed to find something suitable, ensure we fail.
*/
if (m == data->map)
start = res->end;
return start;
}
/*
* Adjust an existing IO region allocation, but making sure that we don't
* encroach outside the resources which the user supplied.
*/
static int __nonstatic_adjust_io_region(struct pcmcia_socket *s,
unsigned long r_start,
unsigned long r_end)
{
struct resource_map *m;
struct socket_data *s_data = s->resource_data;
int ret = -ENOMEM;
for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) {
unsigned long start = m->base;
unsigned long end = m->base + m->num - 1;
if (start > r_start || r_end > end)
continue;
ret = 0;
}
return ret;
}
/*======================================================================
These find ranges of I/O ports or memory addresses that are not
currently allocated by other devices.
The 'align' field should reflect the number of bits of address
that need to be preserved from the initial value of *base. It
should be a power of two, greater than or equal to 'num'. A value
of 0 means that all bits of *base are significant. *base should
also be strictly less than 'align'.
======================================================================*/
static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s,
unsigned long base, int num,
unsigned long align)
{
struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO,
dev_name(&s->dev));
struct socket_data *s_data = s->resource_data;
struct pcmcia_align_data data;
unsigned long min = base;
int ret;
if (!res)
return NULL;
data.mask = align - 1;
data.offset = base & data.mask;
data.map = &s_data->io_db;
#ifdef CONFIG_PCI
if (s->cb_dev) {
ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
min, 0, pcmcia_align, &data);
} else
#endif
ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
1, pcmcia_align, &data);
if (ret != 0) {
kfree(res);
res = NULL;
}
return res;
}
static int nonstatic_find_io(struct pcmcia_socket *s, unsigned int attr,
unsigned int *base, unsigned int num,
unsigned int align, struct resource **parent)
{
int i, ret = 0;
/* Check for an already-allocated window that must conflict with
* what was asked for. It is a hack because it does not catch all
* potential conflicts, just the most obvious ones.
*/
for (i = 0; i < MAX_IO_WIN; i++) {
if (!s->io[i].res)
continue;
if (!*base)
continue;
if ((s->io[i].res->start & (align-1)) == *base)
return -EBUSY;
}
for (i = 0; i < MAX_IO_WIN; i++) {
struct resource *res = s->io[i].res;
unsigned int try;
if (res && (res->flags & IORESOURCE_BITS) !=
(attr & IORESOURCE_BITS))
continue;
if (!res) {
if (align == 0)
align = 0x10000;
res = s->io[i].res = __nonstatic_find_io_region(s,
*base, num,
align);
if (!res)
return -EINVAL;
*base = res->start;
s->io[i].res->flags =
((res->flags & ~IORESOURCE_BITS) |
(attr & IORESOURCE_BITS));
s->io[i].InUse = num;
*parent = res;
return 0;
}
/* Try to extend top of window */
try = res->end + 1;
if ((*base == 0) || (*base == try)) {
ret = __nonstatic_adjust_io_region(s, res->start,
res->end + num);
if (!ret) {
ret = adjust_resource(s->io[i].res, res->start,
resource_size(res) + num);
if (ret)
continue;
*base = try;
s->io[i].InUse += num;
*parent = res;
return 0;
}
}
/* Try to extend bottom of window */
try = res->start - num;
if ((*base == 0) || (*base == try)) {
ret = __nonstatic_adjust_io_region(s,
res->start - num,
res->end);
if (!ret) {
ret = adjust_resource(s->io[i].res,
res->start - num,
resource_size(res) + num);
if (ret)
continue;
*base = try;
s->io[i].InUse += num;
*parent = res;
return 0;
}
}
}
return -EINVAL;
}
static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
u_long align, int low, struct pcmcia_socket *s)
{
struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_MEM,
dev_name(&s->dev));
struct socket_data *s_data = s->resource_data;
struct pcmcia_align_data data;
unsigned long min, max;
int ret, i, j;
if (!res)
return NULL;
low = low || !(s->features & SS_CAP_PAGE_REGS);
data.mask = align - 1;
data.offset = base & data.mask;
for (i = 0; i < 2; i++) {
data.map = &s_data->mem_db_valid;
if (low) {
max = 0x100000UL;
min = base < max ? base : 0;
} else {
max = ~0UL;
min = 0x100000UL + base;
}
for (j = 0; j < 2; j++) {
#ifdef CONFIG_PCI
if (s->cb_dev) {
ret = pci_bus_alloc_resource(s->cb_dev->bus,
res, num, 1, min, 0,
pcmcia_align, &data);
} else
#endif
{
ret = allocate_resource(&iomem_resource,
res, num, min, max, 1,
pcmcia_align, &data);
}
if (ret == 0)
break;
data.map = &s_data->mem_db;
}
if (ret == 0 || low)
break;
low = 1;
}
if (ret != 0) {
kfree(res);
res = NULL;
}
return res;
}
static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
{
struct socket_data *data = s->resource_data;
unsigned long size = end - start + 1;
int ret = 0;
if (end < start)
return -EINVAL;
switch (action) {
case ADD_MANAGED_RESOURCE:
ret = add_interval(&data->mem_db, start, size);
if (!ret)
do_mem_probe(s, start, size, NULL, NULL);
break;
case REMOVE_MANAGED_RESOURCE:
ret = sub_interval(&data->mem_db, start, size);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
{
struct socket_data *data = s->resource_data;
unsigned long size;
int ret = 0;
#if defined(CONFIG_X86)
/* on x86, avoid anything < 0x100 for it is often used for
* legacy platform devices */
if (start < 0x100)
start = 0x100;
#endif
size = end - start + 1;
if (end < start)
return -EINVAL;
if (end > IO_SPACE_LIMIT)
return -EINVAL;
switch (action) {
case ADD_MANAGED_RESOURCE:
if (add_interval(&data->io_db, start, size) != 0) {
ret = -EBUSY;
break;
}
#ifdef CONFIG_PCMCIA_PROBE
if (probe_io)
do_io_probe(s, start, size);
#endif
break;
case REMOVE_MANAGED_RESOURCE:
sub_interval(&data->io_db, start, size);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
#ifdef CONFIG_PCI
static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
{
struct resource *res;
int i, done = 0;
if (!s->cb_dev || !s->cb_dev->bus)
return -ENODEV;
#if defined(CONFIG_X86)
/* If this is the root bus, the risk of hitting some strange
* system devices is too high: If a driver isn't loaded, the
* resources are not claimed; even if a driver is loaded, it
* may not request all resources or even the wrong one. We
* can neither trust the rest of the kernel nor ACPI/PNP and
* CRS parsing to get it right. Therefore, use several
* safeguards:
*
* - Do not auto-add resources if the CardBus bridge is on
* the PCI root bus
*
* - Avoid any I/O ports < 0x100.
*
* - On PCI-PCI bridges, only use resources which are set up
* exclusively for the secondary PCI bus: the risk of hitting
* system devices is quite low, as they usually aren't
* connected to the secondary PCI bus.
*/
if (s->cb_dev->bus->number == 0)
return -EINVAL;
for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++) {
res = s->cb_dev->bus->resource[i];
#else
pci_bus_for_each_resource(s->cb_dev->bus, res, i) {
#endif
if (!res)
continue;
if (res->flags & IORESOURCE_IO) {
/* safeguard against the root resource, where the
* risk of hitting any other device would be too
* high */
if (res == &ioport_resource)
continue;
dev_info(&s->cb_dev->dev,
"pcmcia: parent PCI bridge window: %pR\n",
res);
if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end))
done |= IORESOURCE_IO;
}
if (res->flags & IORESOURCE_MEM) {
/* safeguard against the root resource, where the
* risk of hitting any other device would be too
* high */
if (res == &iomem_resource)
continue;
dev_info(&s->cb_dev->dev,
"pcmcia: parent PCI bridge window: %pR\n",
res);
if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end))
done |= IORESOURCE_MEM;
}
}
/* if we got at least one of IO, and one of MEM, we can be glad and
* activate the PCMCIA subsystem */
if (done == (IORESOURCE_MEM | IORESOURCE_IO))
s->resource_setup_done = 1;
return 0;
}
#else
static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s)
{
return -ENODEV;
}
#endif
static int nonstatic_init(struct pcmcia_socket *s)
{
struct socket_data *data;
data = kzalloc(sizeof(struct socket_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->mem_db.next = &data->mem_db;
data->mem_db_valid.next = &data->mem_db_valid;
data->io_db.next = &data->io_db;
s->resource_data = (void *) data;
nonstatic_autoadd_resources(s);
return 0;
}
static void nonstatic_release_resource_db(struct pcmcia_socket *s)
{
struct socket_data *data = s->resource_data;
struct resource_map *p, *q;
for (p = data->mem_db_valid.next; p != &data->mem_db_valid; p = q) {
q = p->next;
kfree(p);
}
for (p = data->mem_db.next; p != &data->mem_db; p = q) {
q = p->next;
kfree(p);
}
for (p = data->io_db.next; p != &data->io_db; p = q) {
q = p->next;
kfree(p);
}
kfree(data);
}
struct pccard_resource_ops pccard_nonstatic_ops = {
.validate_mem = pcmcia_nonstatic_validate_mem,
.find_io = nonstatic_find_io,
.find_mem = nonstatic_find_mem_region,
.init = nonstatic_init,
.exit = nonstatic_release_resource_db,
};
EXPORT_SYMBOL(pccard_nonstatic_ops);
/* sysfs interface to the resource database */
static ssize_t show_io_db(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
struct socket_data *data;
struct resource_map *p;
ssize_t ret = 0;
mutex_lock(&s->ops_mutex);
data = s->resource_data;
for (p = data->io_db.next; p != &data->io_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
}
mutex_unlock(&s->ops_mutex);
return ret;
}
static ssize_t store_io_db(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
unsigned long start_addr, end_addr;
unsigned int add = ADD_MANAGED_RESOURCE;
ssize_t ret = 0;
ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr);
if (ret != 2) {
ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr);
add = REMOVE_MANAGED_RESOURCE;
if (ret != 2) {
ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr,
&end_addr);
add = ADD_MANAGED_RESOURCE;
if (ret != 2)
return -EINVAL;
}
}
if (end_addr < start_addr)
return -EINVAL;
mutex_lock(&s->ops_mutex);
ret = adjust_io(s, add, start_addr, end_addr);
mutex_unlock(&s->ops_mutex);
return ret ? ret : count;
}
static DEVICE_ATTR(available_resources_io, 0600, show_io_db, store_io_db);
static ssize_t show_mem_db(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
struct socket_data *data;
struct resource_map *p;
ssize_t ret = 0;
mutex_lock(&s->ops_mutex);
data = s->resource_data;
for (p = data->mem_db_valid.next; p != &data->mem_db_valid;
p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
}
for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
}
mutex_unlock(&s->ops_mutex);
return ret;
}
static ssize_t store_mem_db(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
unsigned long start_addr, end_addr;
unsigned int add = ADD_MANAGED_RESOURCE;
ssize_t ret = 0;
ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr);
if (ret != 2) {
ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr);
add = REMOVE_MANAGED_RESOURCE;
if (ret != 2) {
ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr,
&end_addr);
add = ADD_MANAGED_RESOURCE;
if (ret != 2)
return -EINVAL;
}
}
if (end_addr < start_addr)
return -EINVAL;
mutex_lock(&s->ops_mutex);
ret = adjust_memory(s, add, start_addr, end_addr);
mutex_unlock(&s->ops_mutex);
return ret ? ret : count;
}
static DEVICE_ATTR(available_resources_mem, 0600, show_mem_db, store_mem_db);
static struct attribute *pccard_rsrc_attributes[] = {
&dev_attr_available_resources_io.attr,
&dev_attr_available_resources_mem.attr,
NULL,
};
static const struct attribute_group rsrc_attributes = {
.attrs = pccard_rsrc_attributes,
};
static int pccard_sysfs_add_rsrc(struct device *dev)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
if (s->resource_ops != &pccard_nonstatic_ops)
return 0;
return sysfs_create_group(&dev->kobj, &rsrc_attributes);
}
static void pccard_sysfs_remove_rsrc(struct device *dev)
{
struct pcmcia_socket *s = dev_get_drvdata(dev);
if (s->resource_ops != &pccard_nonstatic_ops)
return;
sysfs_remove_group(&dev->kobj, &rsrc_attributes);
}
static struct class_interface pccard_rsrc_interface __refdata = {
.class = &pcmcia_socket_class,
.add_dev = &pccard_sysfs_add_rsrc,
.remove_dev = &pccard_sysfs_remove_rsrc,
};
static int __init nonstatic_sysfs_init(void)
{
return class_interface_register(&pccard_rsrc_interface);
}
static void __exit nonstatic_sysfs_exit(void)
{
class_interface_unregister(&pccard_rsrc_interface);
}
module_init(nonstatic_sysfs_init);
module_exit(nonstatic_sysfs_exit);
| linux-master | drivers/pcmcia/rsrc_nonstatic.c |
/*======================================================================
Device driver for the PCMCIA control functionality of StrongARM
SA-1100 microprocessors.
The contents of this file are subject to the Mozilla Public
License Version 1.1 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
The initial developer of the original code is John G. Dorsey
<[email protected]>. Portions created by John G. Dorsey are
Copyright (C) 1999 John G. Dorsey. All Rights Reserved.
Alternatively, the contents of this file may be used under the
terms of the GNU Public License version 2 (the "GPL"), in which
case the provisions of the GPL are applicable instead of the
above. If you wish to allow the use of your version of this file
only under the terms of the GPL and not to allow others to use
your version of this file under the MPL, indicate your decision
by deleting the provisions above and replace them with the notice
and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this
file under either the MPL or the GPL.
======================================================================*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include "soc_common.h"
#include "sa11xx_base.h"
/*
* sa1100_pcmcia_default_mecr_timing
* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*
* Calculate MECR clock wait states for given CPU clock
* speed and command wait state. This function can be over-
* written by a board specific version.
*
* The default is to simply calculate the BS values as specified in
* the INTEL SA1100 development manual
* "Expansion Memory (PCMCIA) Configuration Register (MECR)"
* that's section 10.2.5 in _my_ version of the manual ;)
*/
static unsigned int
sa1100_pcmcia_default_mecr_timing(struct soc_pcmcia_socket *skt,
unsigned int cpu_speed,
unsigned int cmd_time)
{
return sa1100_pcmcia_mecr_bs(cmd_time, cpu_speed);
}
/* sa1100_pcmcia_set_mecr()
* ^^^^^^^^^^^^^^^^^^^^^^^^
*
* set MECR value for socket <sock> based on this sockets
* io, mem and attribute space access speed.
* Call board specific BS value calculation to allow boards
* to tweak the BS values.
*/
static int
sa1100_pcmcia_set_mecr(struct soc_pcmcia_socket *skt, unsigned int cpu_clock)
{
struct soc_pcmcia_timing timing;
u32 mecr, old_mecr;
unsigned long flags;
unsigned int bs_io, bs_mem, bs_attr;
soc_common_pcmcia_get_timing(skt, &timing);
bs_io = skt->ops->get_timing(skt, cpu_clock, timing.io);
bs_mem = skt->ops->get_timing(skt, cpu_clock, timing.mem);
bs_attr = skt->ops->get_timing(skt, cpu_clock, timing.attr);
local_irq_save(flags);
old_mecr = mecr = MECR;
MECR_FAST_SET(mecr, skt->nr, 0);
MECR_BSIO_SET(mecr, skt->nr, bs_io);
MECR_BSA_SET(mecr, skt->nr, bs_attr);
MECR_BSM_SET(mecr, skt->nr, bs_mem);
if (old_mecr != mecr)
MECR = mecr;
local_irq_restore(flags);
debug(skt, 2, "FAST %X BSM %X BSA %X BSIO %X\n",
MECR_FAST_GET(mecr, skt->nr),
MECR_BSM_GET(mecr, skt->nr), MECR_BSA_GET(mecr, skt->nr),
MECR_BSIO_GET(mecr, skt->nr));
return 0;
}
#ifdef CONFIG_CPU_FREQ
static int
sa1100_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
unsigned long val,
struct cpufreq_freqs *freqs)
{
switch (val) {
case CPUFREQ_PRECHANGE:
if (freqs->new > freqs->old)
sa1100_pcmcia_set_mecr(skt, freqs->new);
break;
case CPUFREQ_POSTCHANGE:
if (freqs->new < freqs->old)
sa1100_pcmcia_set_mecr(skt, freqs->new);
break;
}
return 0;
}
#endif
static int
sa1100_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
{
unsigned long clk = clk_get_rate(skt->clk);
return sa1100_pcmcia_set_mecr(skt, clk / 1000);
}
static int
sa1100_pcmcia_show_timing(struct soc_pcmcia_socket *skt, char *buf)
{
struct soc_pcmcia_timing timing;
unsigned int clock = clk_get_rate(skt->clk) / 1000;
unsigned long mecr = MECR;
char *p = buf;
soc_common_pcmcia_get_timing(skt, &timing);
p+=sprintf(p, "I/O : %uns (%uns)\n", timing.io,
sa1100_pcmcia_cmd_time(clock, MECR_BSIO_GET(mecr, skt->nr)));
p+=sprintf(p, "attribute: %uns (%uns)\n", timing.attr,
sa1100_pcmcia_cmd_time(clock, MECR_BSA_GET(mecr, skt->nr)));
p+=sprintf(p, "common : %uns (%uns)\n", timing.mem,
sa1100_pcmcia_cmd_time(clock, MECR_BSM_GET(mecr, skt->nr)));
return p - buf;
}
static const char *skt_names[] = {
"PCMCIA socket 0",
"PCMCIA socket 1",
};
#define SKT_DEV_INFO_SIZE(n) \
(sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
int sa11xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
{
skt->res_skt.start = _PCMCIA(skt->nr);
skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
skt->res_skt.name = skt_names[skt->nr];
skt->res_skt.flags = IORESOURCE_MEM;
skt->res_io.start = _PCMCIAIO(skt->nr);
skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
skt->res_io.name = "io";
skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
skt->res_mem.start = _PCMCIAMem(skt->nr);
skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
skt->res_mem.name = "memory";
skt->res_mem.flags = IORESOURCE_MEM;
skt->res_attr.start = _PCMCIAAttr(skt->nr);
skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
skt->res_attr.name = "attribute";
skt->res_attr.flags = IORESOURCE_MEM;
return soc_pcmcia_add_one(skt);
}
EXPORT_SYMBOL(sa11xx_drv_pcmcia_add_one);
void sa11xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
{
/*
* set default MECR calculation if the board specific
* code did not specify one...
*/
if (!ops->get_timing)
ops->get_timing = sa1100_pcmcia_default_mecr_timing;
/* Provide our SA11x0 specific timing routines. */
ops->set_timing = sa1100_pcmcia_set_timing;
ops->show_timing = sa1100_pcmcia_show_timing;
#ifdef CONFIG_CPU_FREQ
ops->frequency_change = sa1100_pcmcia_frequency_change;
#endif
}
EXPORT_SYMBOL(sa11xx_drv_pcmcia_ops);
int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops,
int first, int nr)
{
struct skt_dev_info *sinfo;
struct soc_pcmcia_socket *skt;
int i, ret = 0;
struct clk *clk;
clk = devm_clk_get(dev, NULL);
if (IS_ERR(clk))
return PTR_ERR(clk);
sa11xx_drv_pcmcia_ops(ops);
sinfo = devm_kzalloc(dev, SKT_DEV_INFO_SIZE(nr), GFP_KERNEL);
if (!sinfo)
return -ENOMEM;
sinfo->nskt = nr;
/* Initialize processor specific parameters */
for (i = 0; i < nr; i++) {
skt = &sinfo->skt[i];
skt->nr = first + i;
skt->clk = clk;
soc_pcmcia_init_one(skt, ops, dev);
ret = sa11xx_drv_pcmcia_add_one(skt);
if (ret)
break;
}
if (ret) {
while (--i >= 0)
soc_pcmcia_remove_one(&sinfo->skt[i]);
} else {
dev_set_drvdata(dev, sinfo);
}
return ret;
}
EXPORT_SYMBOL(sa11xx_drv_pcmcia_probe);
MODULE_AUTHOR("John Dorsey <[email protected]>");
MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11xx core socket driver");
MODULE_LICENSE("Dual MPL/GPL");
| linux-master | drivers/pcmcia/sa11xx_base.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* ds.c -- 16-bit PCMCIA core support
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
* (C) 2003 - 2010 Dominik Brodowski
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/crc32.h>
#include <linux/firmware.h>
#include <linux/kref.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/ss.h>
#include "cs_internal.h"
/*====================================================================*/
/* Module parameters */
MODULE_AUTHOR("David Hinds <[email protected]>");
MODULE_DESCRIPTION("PCMCIA Driver Services");
MODULE_LICENSE("GPL");
/*====================================================================*/
static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
{
const struct pcmcia_device_id *did = p_drv->id_table;
unsigned int i;
u32 hash;
if (!p_drv->probe || !p_drv->remove)
printk(KERN_DEBUG "pcmcia: %s lacks a requisite callback "
"function\n", p_drv->name);
while (did && did->match_flags) {
for (i = 0; i < 4; i++) {
if (!did->prod_id[i])
continue;
hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i]));
if (hash == did->prod_id_hash[i])
continue;
printk(KERN_DEBUG "pcmcia: %s: invalid hash for "
"product string \"%s\": is 0x%x, should "
"be 0x%x\n", p_drv->name, did->prod_id[i],
did->prod_id_hash[i], hash);
printk(KERN_DEBUG "pcmcia: see "
"Documentation/pcmcia/devicetable.rst for "
"details\n");
}
did++;
}
return;
}
/*======================================================================*/
struct pcmcia_dynid {
struct list_head node;
struct pcmcia_device_id id;
};
/**
* new_id_store() - add a new PCMCIA device ID to this driver and re-probe devices
* @driver: target device driver
* @buf: buffer for scanning device ID data
* @count: input size
*
* Adds a new dynamic PCMCIA device ID to this driver,
* and causes the driver to probe for all devices again.
*/
static ssize_t
new_id_store(struct device_driver *driver, const char *buf, size_t count)
{
struct pcmcia_dynid *dynid;
struct pcmcia_driver *pdrv = to_pcmcia_drv(driver);
__u16 match_flags, manf_id, card_id;
__u8 func_id, function, device_no;
__u32 prod_id_hash[4] = {0, 0, 0, 0};
int fields = 0;
int retval = 0;
fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x",
&match_flags, &manf_id, &card_id, &func_id, &function, &device_no,
&prod_id_hash[0], &prod_id_hash[1], &prod_id_hash[2], &prod_id_hash[3]);
if (fields < 6)
return -EINVAL;
dynid = kzalloc(sizeof(struct pcmcia_dynid), GFP_KERNEL);
if (!dynid)
return -ENOMEM;
dynid->id.match_flags = match_flags;
dynid->id.manf_id = manf_id;
dynid->id.card_id = card_id;
dynid->id.func_id = func_id;
dynid->id.function = function;
dynid->id.device_no = device_no;
memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4);
mutex_lock(&pdrv->dynids.lock);
list_add_tail(&dynid->node, &pdrv->dynids.list);
mutex_unlock(&pdrv->dynids.lock);
retval = driver_attach(&pdrv->drv);
if (retval)
return retval;
return count;
}
static DRIVER_ATTR_WO(new_id);
static void
pcmcia_free_dynids(struct pcmcia_driver *drv)
{
struct pcmcia_dynid *dynid, *n;
mutex_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
mutex_unlock(&drv->dynids.lock);
}
static int
pcmcia_create_newid_file(struct pcmcia_driver *drv)
{
int error = 0;
if (drv->probe != NULL)
error = driver_create_file(&drv->drv, &driver_attr_new_id);
return error;
}
static void
pcmcia_remove_newid_file(struct pcmcia_driver *drv)
{
driver_remove_file(&drv->drv, &driver_attr_new_id);
}
/**
* pcmcia_register_driver - register a PCMCIA driver with the bus core
* @driver: the &driver being registered
*
* Registers a PCMCIA driver with the PCMCIA bus core.
*/
int pcmcia_register_driver(struct pcmcia_driver *driver)
{
int error;
if (!driver)
return -EINVAL;
pcmcia_check_driver(driver);
/* initialize common fields */
driver->drv.bus = &pcmcia_bus_type;
driver->drv.owner = driver->owner;
driver->drv.name = driver->name;
mutex_init(&driver->dynids.lock);
INIT_LIST_HEAD(&driver->dynids.list);
pr_debug("registering driver %s\n", driver->name);
error = driver_register(&driver->drv);
if (error < 0)
return error;
error = pcmcia_create_newid_file(driver);
if (error)
driver_unregister(&driver->drv);
return error;
}
EXPORT_SYMBOL(pcmcia_register_driver);
/**
* pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core
* @driver: the &driver being unregistered
*/
void pcmcia_unregister_driver(struct pcmcia_driver *driver)
{
pr_debug("unregistering driver %s\n", driver->name);
pcmcia_remove_newid_file(driver);
driver_unregister(&driver->drv);
pcmcia_free_dynids(driver);
}
EXPORT_SYMBOL(pcmcia_unregister_driver);
/* pcmcia_device handling */
static struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev)
{
struct device *tmp_dev;
tmp_dev = get_device(&p_dev->dev);
if (!tmp_dev)
return NULL;
return to_pcmcia_dev(tmp_dev);
}
static void pcmcia_put_dev(struct pcmcia_device *p_dev)
{
if (p_dev)
put_device(&p_dev->dev);
}
static void pcmcia_release_function(struct kref *ref)
{
struct config_t *c = container_of(ref, struct config_t, ref);
pr_debug("releasing config_t\n");
kfree(c);
}
static void pcmcia_release_dev(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
int i;
dev_dbg(dev, "releasing device\n");
pcmcia_put_socket(p_dev->socket);
for (i = 0; i < 4; i++)
kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kref_put(&p_dev->function_config->ref, pcmcia_release_function);
kfree(p_dev);
}
static int pcmcia_device_probe(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
struct pcmcia_socket *s;
cistpl_config_t cis_config;
int ret = 0;
dev = get_device(dev);
if (!dev)
return -ENODEV;
p_dev = to_pcmcia_dev(dev);
p_drv = to_pcmcia_drv(dev->driver);
s = p_dev->socket;
dev_dbg(dev, "trying to bind to %s\n", p_drv->name);
if ((!p_drv->probe) || (!p_dev->function_config) ||
(!try_module_get(p_drv->owner))) {
ret = -EINVAL;
goto put_dev;
}
/* set up some more device information */
ret = pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_CONFIG,
&cis_config);
if (!ret) {
p_dev->config_base = cis_config.base;
p_dev->config_regs = cis_config.rmask[0];
dev_dbg(dev, "base %x, regs %x", p_dev->config_base,
p_dev->config_regs);
} else {
dev_info(dev,
"pcmcia: could not parse base and rmask0 of CIS\n");
p_dev->config_base = 0;
p_dev->config_regs = 0;
}
ret = p_drv->probe(p_dev);
if (ret) {
dev_dbg(dev, "binding to %s failed with %d\n",
p_drv->name, ret);
goto put_module;
}
dev_dbg(dev, "%s bound: Vpp %d.%d, idx %x, IRQ %d", p_drv->name,
p_dev->vpp/10, p_dev->vpp%10, p_dev->config_index, p_dev->irq);
dev_dbg(dev, "resources: ioport %pR %pR iomem %pR %pR %pR",
p_dev->resource[0], p_dev->resource[1], p_dev->resource[2],
p_dev->resource[3], p_dev->resource[4]);
mutex_lock(&s->ops_mutex);
if ((s->pcmcia_pfc) &&
(p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
mutex_unlock(&s->ops_mutex);
put_module:
if (ret)
module_put(p_drv->owner);
put_dev:
if (ret)
put_device(dev);
return ret;
}
/*
* Removes a PCMCIA card from the device tree and socket list.
*/
static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *leftover)
{
struct pcmcia_device *p_dev;
struct pcmcia_device *tmp;
dev_dbg(leftover ? &leftover->dev : &s->dev,
"pcmcia_card_remove(%d) %s\n", s->sock,
leftover ? leftover->devname : "");
mutex_lock(&s->ops_mutex);
if (!leftover)
s->device_count = 0;
else
s->device_count = 1;
mutex_unlock(&s->ops_mutex);
/* unregister all pcmcia_devices registered with this socket, except leftover */
list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
if (p_dev == leftover)
continue;
mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
mutex_unlock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "unregistering device\n");
device_unregister(&p_dev->dev);
}
return;
}
static void pcmcia_device_remove(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
int i;
p_dev = to_pcmcia_dev(dev);
p_drv = to_pcmcia_drv(dev->driver);
dev_dbg(dev, "removing device\n");
/* If we're removing the primary module driving a
* pseudo multi-function card, we need to unbind
* all devices
*/
if ((p_dev->socket->pcmcia_pfc) &&
(p_dev->socket->device_count > 0) &&
(p_dev->device_no == 0))
pcmcia_card_remove(p_dev->socket, p_dev);
/* detach the "instance" */
if (p_drv->remove)
p_drv->remove(p_dev);
/* check for proper unloading */
if (p_dev->_irq || p_dev->_io || p_dev->_locked)
dev_info(dev,
"pcmcia: driver %s did not release config properly\n",
p_drv->name);
for (i = 0; i < MAX_WIN; i++)
if (p_dev->_win & CLIENT_WIN_REQ(i))
dev_info(dev,
"pcmcia: driver %s did not release window properly\n",
p_drv->name);
/* references from pcmcia_device_probe */
pcmcia_put_dev(p_dev);
module_put(p_drv->owner);
}
/*
* pcmcia_device_query -- determine information about a pcmcia device
*/
static int pcmcia_device_query(struct pcmcia_device *p_dev)
{
cistpl_manfid_t manf_id;
cistpl_funcid_t func_id;
cistpl_vers_1_t *vers1;
unsigned int i;
vers1 = kmalloc(sizeof(*vers1), GFP_KERNEL);
if (!vers1)
return -ENOMEM;
if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL,
CISTPL_MANFID, &manf_id)) {
mutex_lock(&p_dev->socket->ops_mutex);
p_dev->manf_id = manf_id.manf;
p_dev->card_id = manf_id.card;
p_dev->has_manf_id = 1;
p_dev->has_card_id = 1;
mutex_unlock(&p_dev->socket->ops_mutex);
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_FUNCID, &func_id)) {
mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = func_id.func;
p_dev->has_func_id = 1;
mutex_unlock(&p_dev->socket->ops_mutex);
} else {
/* rule of thumb: cards with no FUNCID, but with
* common memory device geometry information, are
* probably memory cards (from pcmcia-cs) */
cistpl_device_geo_t *devgeo;
devgeo = kmalloc(sizeof(*devgeo), GFP_KERNEL);
if (!devgeo) {
kfree(vers1);
return -ENOMEM;
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_DEVICE_GEO, devgeo)) {
dev_dbg(&p_dev->dev,
"mem device geometry probably means "
"FUNCID_MEMORY\n");
mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = CISTPL_FUNCID_MEMORY;
p_dev->has_func_id = 1;
mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(devgeo);
}
if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1,
vers1)) {
mutex_lock(&p_dev->socket->ops_mutex);
for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) {
char *tmp;
unsigned int length;
char *new;
tmp = vers1->str + vers1->ofs[i];
length = strlen(tmp) + 1;
if ((length < 2) || (length > 255))
continue;
new = kstrdup(tmp, GFP_KERNEL);
if (!new)
continue;
tmp = p_dev->prod_id[i];
p_dev->prod_id[i] = new;
kfree(tmp);
}
mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(vers1);
return 0;
}
static struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s,
unsigned int function)
{
struct pcmcia_device *p_dev, *tmp_dev;
int i;
s = pcmcia_get_socket(s);
if (!s)
return NULL;
pr_debug("adding device to %d, function %d\n", s->sock, function);
p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
if (!p_dev)
goto err_put;
mutex_lock(&s->ops_mutex);
p_dev->device_no = (s->device_count++);
mutex_unlock(&s->ops_mutex);
/* max of 2 PFC devices */
if ((p_dev->device_no >= 2) && (function == 0))
goto err_free;
/* max of 4 devices overall */
if (p_dev->device_no >= 4)
goto err_free;
p_dev->socket = s;
p_dev->func = function;
p_dev->dev.bus = &pcmcia_bus_type;
p_dev->dev.parent = s->dev.parent;
p_dev->dev.release = pcmcia_release_dev;
/* by default don't allow DMA */
p_dev->dma_mask = 0;
p_dev->dev.dma_mask = &p_dev->dma_mask;
dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no);
if (!dev_name(&p_dev->dev))
goto err_free;
p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev));
if (!p_dev->devname)
goto err_free;
dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname);
mutex_lock(&s->ops_mutex);
/*
* p_dev->function_config must be the same for all card functions.
* Note that this is serialized by ops_mutex, so that only one
* such struct will be created.
*/
list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
if (p_dev->func == tmp_dev->func) {
p_dev->function_config = tmp_dev->function_config;
p_dev->irq = tmp_dev->irq;
kref_get(&p_dev->function_config->ref);
}
/* Add to the list in pcmcia_bus_socket */
list_add(&p_dev->socket_device_list, &s->devices_list);
if (pcmcia_setup_irq(p_dev))
dev_warn(&p_dev->dev,
"IRQ setup failed -- device might not work\n");
if (!p_dev->function_config) {
config_t *c;
dev_dbg(&p_dev->dev, "creating config_t\n");
c = kzalloc(sizeof(struct config_t), GFP_KERNEL);
if (!c) {
mutex_unlock(&s->ops_mutex);
goto err_unreg;
}
p_dev->function_config = c;
kref_init(&c->ref);
for (i = 0; i < MAX_IO_WIN; i++) {
c->io[i].name = p_dev->devname;
c->io[i].flags = IORESOURCE_IO;
}
for (i = 0; i < MAX_WIN; i++) {
c->mem[i].name = p_dev->devname;
c->mem[i].flags = IORESOURCE_MEM;
}
}
for (i = 0; i < MAX_IO_WIN; i++)
p_dev->resource[i] = &p_dev->function_config->io[i];
for (; i < (MAX_IO_WIN + MAX_WIN); i++)
p_dev->resource[i] = &p_dev->function_config->mem[i-MAX_IO_WIN];
mutex_unlock(&s->ops_mutex);
dev_notice(&p_dev->dev, "pcmcia: registering new device %s (IRQ: %d)\n",
p_dev->devname, p_dev->irq);
pcmcia_device_query(p_dev);
if (device_register(&p_dev->dev))
goto err_unreg;
return p_dev;
err_unreg:
mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
mutex_unlock(&s->ops_mutex);
err_free:
mutex_lock(&s->ops_mutex);
s->device_count--;
mutex_unlock(&s->ops_mutex);
for (i = 0; i < 4; i++)
kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kfree(p_dev);
err_put:
pcmcia_put_socket(s);
return NULL;
}
static int pcmcia_card_add(struct pcmcia_socket *s)
{
cistpl_longlink_mfc_t mfc;
unsigned int no_funcs, i, no_chains;
int ret = -EAGAIN;
mutex_lock(&s->ops_mutex);
if (!(s->resource_setup_done)) {
dev_dbg(&s->dev,
"no resources available, delaying card_add\n");
mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
if (pcmcia_validate_mem(s)) {
dev_dbg(&s->dev, "validating mem resources failed, "
"delaying card_add\n");
mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
mutex_unlock(&s->ops_mutex);
ret = pccard_validate_cis(s, &no_chains);
if (ret || !no_chains) {
#if defined(CONFIG_MTD_PCMCIA_ANONYMOUS)
/* Set up as an anonymous card. If we don't have anonymous
memory support then just error the card as there is no
point trying to second guess.
Note: some cards have just a device entry, it may be
worth extending support to cover these in future */
if (ret == -EIO) {
dev_info(&s->dev, "no CIS, assuming an anonymous memory card.\n");
pcmcia_replace_cis(s, "\xFF", 1);
no_chains = 1;
ret = 0;
} else
#endif
{
dev_dbg(&s->dev, "invalid CIS or invalid resources\n");
return -ENODEV;
}
}
if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
no_funcs = mfc.nfn;
else
no_funcs = 1;
s->functions = no_funcs;
for (i = 0; i < no_funcs; i++)
pcmcia_device_add(s, i);
return ret;
}
static int pcmcia_requery_callback(struct device *dev, void *_data)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (!p_dev->dev.driver) {
dev_dbg(dev, "update device information\n");
pcmcia_device_query(p_dev);
}
return 0;
}
static void pcmcia_requery(struct pcmcia_socket *s)
{
int has_pfc;
if (!(s->state & SOCKET_PRESENT))
return;
if (s->functions == 0) {
pcmcia_card_add(s);
return;
}
/* some device information might have changed because of a CIS
* update or because we can finally read it correctly... so
* determine it again, overwriting old values if necessary. */
bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback);
/* if the CIS changed, we need to check whether the number of
* functions changed. */
if (s->fake_cis) {
int old_funcs, new_funcs;
cistpl_longlink_mfc_t mfc;
/* does this cis override add or remove functions? */
old_funcs = s->functions;
if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
&mfc))
new_funcs = mfc.nfn;
else
new_funcs = 1;
if (old_funcs != new_funcs) {
/* we need to re-start */
pcmcia_card_remove(s, NULL);
s->functions = 0;
pcmcia_card_add(s);
}
}
/* If the PCMCIA device consists of two pseudo devices,
* call pcmcia_device_add() -- which will fail if both
* devices are already registered. */
mutex_lock(&s->ops_mutex);
has_pfc = s->pcmcia_pfc;
mutex_unlock(&s->ops_mutex);
if (has_pfc)
pcmcia_device_add(s, 0);
/* we re-scan all devices, not just the ones connected to this
* socket. This does not matter, though. */
if (bus_rescan_devices(&pcmcia_bus_type))
dev_warn(&s->dev, "rescanning the bus failed\n");
}
#ifdef CONFIG_PCMCIA_LOAD_CIS
/**
* pcmcia_load_firmware - load CIS from userspace if device-provided is broken
* @dev: the pcmcia device which needs a CIS override
* @filename: requested filename in /lib/firmware/
*
* This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
* the one provided by the card is broken. The firmware files reside in
* /lib/firmware/ in userspace.
*/
static int pcmcia_load_firmware(struct pcmcia_device *dev, char *filename)
{
struct pcmcia_socket *s = dev->socket;
const struct firmware *fw;
int ret = -ENOMEM;
cistpl_longlink_mfc_t mfc;
int old_funcs, new_funcs = 1;
if (!filename)
return -EINVAL;
dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename);
if (request_firmware(&fw, filename, &dev->dev) == 0) {
if (fw->size >= CISTPL_MAX_CIS_SIZE) {
ret = -EINVAL;
dev_err(&dev->dev, "pcmcia: CIS override is too big\n");
goto release;
}
if (!pcmcia_replace_cis(s, fw->data, fw->size))
ret = 0;
else {
dev_err(&dev->dev, "pcmcia: CIS override failed\n");
goto release;
}
/* we need to re-start if the number of functions changed */
old_funcs = s->functions;
if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
&mfc))
new_funcs = mfc.nfn;
if (old_funcs != new_funcs)
ret = -EBUSY;
/* update information */
pcmcia_device_query(dev);
/* requery (as number of functions might have changed) */
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
}
release:
release_firmware(fw);
return ret;
}
#else /* !CONFIG_PCMCIA_LOAD_CIS */
static inline int pcmcia_load_firmware(struct pcmcia_device *dev,
char *filename)
{
return -ENODEV;
}
#endif
static inline int pcmcia_devmatch(struct pcmcia_device *dev,
const struct pcmcia_device_id *did)
{
if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) {
if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) {
if ((!dev->has_card_id) || (dev->card_id != did->card_id))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) {
if (dev->func != did->function)
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) {
if (!dev->prod_id[0])
return 0;
if (strcmp(did->prod_id[0], dev->prod_id[0]))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) {
if (!dev->prod_id[1])
return 0;
if (strcmp(did->prod_id[1], dev->prod_id[1]))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) {
if (!dev->prod_id[2])
return 0;
if (strcmp(did->prod_id[2], dev->prod_id[2]))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) {
if (!dev->prod_id[3])
return 0;
if (strcmp(did->prod_id[3], dev->prod_id[3]))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n");
mutex_lock(&dev->socket->ops_mutex);
dev->socket->pcmcia_pfc = 1;
mutex_unlock(&dev->socket->ops_mutex);
if (dev->device_no != did->device_no)
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
int ret;
if ((!dev->has_func_id) || (dev->func_id != did->func_id))
return 0;
/* if this is a pseudo-multi-function device,
* we need explicit matches */
if (dev->socket->pcmcia_pfc)
return 0;
if (dev->device_no)
return 0;
/* also, FUNC_ID matching needs to be activated by userspace
* after it has re-checked that there is no possible module
* with a prod_id/manf_id/card_id match.
*/
mutex_lock(&dev->socket->ops_mutex);
ret = dev->allow_func_id_match;
mutex_unlock(&dev->socket->ops_mutex);
if (!ret) {
dev_dbg(&dev->dev,
"skipping FUNC_ID match until userspace ACK\n");
return 0;
}
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
dev_dbg(&dev->dev, "device needs a fake CIS\n");
if (!dev->socket->fake_cis)
if (pcmcia_load_firmware(dev, did->cisfile))
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
int i;
for (i = 0; i < 4; i++)
if (dev->prod_id[i])
return 0;
if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
return 0;
}
return 1;
}
static int pcmcia_bus_match(struct device *dev, struct device_driver *drv)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
struct pcmcia_driver *p_drv = to_pcmcia_drv(drv);
const struct pcmcia_device_id *did = p_drv->id_table;
struct pcmcia_dynid *dynid;
/* match dynamic devices first */
mutex_lock(&p_drv->dynids.lock);
list_for_each_entry(dynid, &p_drv->dynids.list, node) {
dev_dbg(dev, "trying to match to %s\n", drv->name);
if (pcmcia_devmatch(p_dev, &dynid->id)) {
dev_dbg(dev, "matched to %s\n", drv->name);
mutex_unlock(&p_drv->dynids.lock);
return 1;
}
}
mutex_unlock(&p_drv->dynids.lock);
while (did && did->match_flags) {
dev_dbg(dev, "trying to match to %s\n", drv->name);
if (pcmcia_devmatch(p_dev, did)) {
dev_dbg(dev, "matched to %s\n", drv->name);
return 1;
}
did++;
}
return 0;
}
static int pcmcia_bus_uevent(const struct device *dev, struct kobj_uevent_env *env)
{
const struct pcmcia_device *p_dev;
int i;
u32 hash[4] = { 0, 0, 0, 0};
if (!dev)
return -ENODEV;
p_dev = to_pcmcia_dev(dev);
/* calculate hashes */
for (i = 0; i < 4; i++) {
if (!p_dev->prod_id[i])
continue;
hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i]));
}
if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock))
return -ENOMEM;
if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no))
return -ENOMEM;
if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
"pa%08Xpb%08Xpc%08Xpd%08X",
p_dev->has_manf_id ? p_dev->manf_id : 0,
p_dev->has_card_id ? p_dev->card_id : 0,
p_dev->has_func_id ? p_dev->func_id : 0,
p_dev->func,
p_dev->device_no,
hash[0],
hash[1],
hash[2],
hash[3]))
return -ENOMEM;
return 0;
}
/************************ runtime PM support ***************************/
static int pcmcia_dev_suspend(struct device *dev);
static int pcmcia_dev_resume(struct device *dev);
static int runtime_suspend(struct device *dev)
{
int rc;
device_lock(dev);
rc = pcmcia_dev_suspend(dev);
device_unlock(dev);
return rc;
}
static int runtime_resume(struct device *dev)
{
int rc;
device_lock(dev);
rc = pcmcia_dev_resume(dev);
device_unlock(dev);
return rc;
}
/************************ per-device sysfs output ***************************/
#define pcmcia_device_attr(field, test, format) \
static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
return p_dev->test ? sysfs_emit(buf, format, p_dev->field) : -ENODEV; \
} \
static DEVICE_ATTR_RO(field);
#define pcmcia_device_stringattr(name, field) \
static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
return p_dev->field ? sysfs_emit(buf, "%s\n", p_dev->field) : -ENODEV; \
} \
static DEVICE_ATTR_RO(name);
pcmcia_device_attr(func_id, has_func_id, "0x%02x\n");
pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n");
pcmcia_device_attr(card_id, has_card_id, "0x%04x\n");
pcmcia_device_stringattr(prod_id1, prod_id[0]);
pcmcia_device_stringattr(prod_id2, prod_id[1]);
pcmcia_device_stringattr(prod_id3, prod_id[2]);
pcmcia_device_stringattr(prod_id4, prod_id[3]);
static ssize_t function_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
return p_dev->socket ? sysfs_emit(buf, "0x%02x\n", p_dev->func) : -ENODEV;
}
static DEVICE_ATTR_RO(function);
static ssize_t resources_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
int i, at = 0;
for (i = 0; i < PCMCIA_NUM_RESOURCES; i++)
at += sysfs_emit_at(buf, at, "%pr\n", p_dev->resource[i]);
return at;
}
static DEVICE_ATTR_RO(resources);
static ssize_t pm_state_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (p_dev->suspended)
return sysfs_emit(buf, "off\n");
else
return sysfs_emit(buf, "on\n");
}
static ssize_t pm_state_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
int ret = 0;
if (!count)
return -EINVAL;
if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
ret = runtime_suspend(dev);
else if (p_dev->suspended && !strncmp(buf, "on", 2))
ret = runtime_resume(dev);
return ret ? ret : count;
}
static DEVICE_ATTR_RW(pm_state);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
int i;
u32 hash[4] = { 0, 0, 0, 0};
/* calculate hashes */
for (i = 0; i < 4; i++) {
if (!p_dev->prod_id[i])
continue;
hash[i] = crc32(0, p_dev->prod_id[i],
strlen(p_dev->prod_id[i]));
}
return sysfs_emit(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02Xpa%08Xpb%08Xpc%08Xpd%08X\n",
p_dev->has_manf_id ? p_dev->manf_id : 0,
p_dev->has_card_id ? p_dev->card_id : 0,
p_dev->has_func_id ? p_dev->func_id : 0,
p_dev->func, p_dev->device_no,
hash[0], hash[1], hash[2], hash[3]);
}
static DEVICE_ATTR_RO(modalias);
static ssize_t allow_func_id_match_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (!count)
return -EINVAL;
mutex_lock(&p_dev->socket->ops_mutex);
p_dev->allow_func_id_match = 1;
mutex_unlock(&p_dev->socket->ops_mutex);
pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY);
return count;
}
static DEVICE_ATTR_WO(allow_func_id_match);
static struct attribute *pcmcia_dev_attrs[] = {
&dev_attr_resources.attr,
&dev_attr_pm_state.attr,
&dev_attr_function.attr,
&dev_attr_func_id.attr,
&dev_attr_manf_id.attr,
&dev_attr_card_id.attr,
&dev_attr_prod_id1.attr,
&dev_attr_prod_id2.attr,
&dev_attr_prod_id3.attr,
&dev_attr_prod_id4.attr,
&dev_attr_modalias.attr,
&dev_attr_allow_func_id_match.attr,
NULL,
};
ATTRIBUTE_GROUPS(pcmcia_dev);
/* PM support, also needed for reset */
static int pcmcia_dev_suspend(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
struct pcmcia_driver *p_drv = NULL;
int ret = 0;
mutex_lock(&p_dev->socket->ops_mutex);
if (p_dev->suspended) {
mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
}
p_dev->suspended = 1;
mutex_unlock(&p_dev->socket->ops_mutex);
dev_dbg(dev, "suspending\n");
if (dev->driver)
p_drv = to_pcmcia_drv(dev->driver);
if (!p_drv)
goto out;
if (p_drv->suspend) {
ret = p_drv->suspend(p_dev);
if (ret) {
dev_err(dev,
"pcmcia: device %s (driver %s) did not want to go to sleep (%d)\n",
p_dev->devname, p_drv->name, ret);
mutex_lock(&p_dev->socket->ops_mutex);
p_dev->suspended = 0;
mutex_unlock(&p_dev->socket->ops_mutex);
goto out;
}
}
if (p_dev->device_no == p_dev->func) {
dev_dbg(dev, "releasing configuration\n");
pcmcia_release_configuration(p_dev);
}
out:
return ret;
}
static int pcmcia_dev_resume(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
struct pcmcia_driver *p_drv = NULL;
int ret = 0;
mutex_lock(&p_dev->socket->ops_mutex);
if (!p_dev->suspended) {
mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
}
p_dev->suspended = 0;
mutex_unlock(&p_dev->socket->ops_mutex);
dev_dbg(dev, "resuming\n");
if (dev->driver)
p_drv = to_pcmcia_drv(dev->driver);
if (!p_drv)
goto out;
if (p_dev->device_no == p_dev->func) {
dev_dbg(dev, "requesting configuration\n");
ret = pcmcia_enable_device(p_dev);
if (ret)
goto out;
}
if (p_drv->resume)
ret = p_drv->resume(p_dev);
out:
return ret;
}
static int pcmcia_bus_suspend_callback(struct device *dev, void *_data)
{
struct pcmcia_socket *skt = _data;
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (p_dev->socket != skt || p_dev->suspended)
return 0;
return runtime_suspend(dev);
}
static int pcmcia_bus_resume_callback(struct device *dev, void *_data)
{
struct pcmcia_socket *skt = _data;
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (p_dev->socket != skt || !p_dev->suspended)
return 0;
runtime_resume(dev);
return 0;
}
static int pcmcia_bus_resume(struct pcmcia_socket *skt)
{
dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock);
bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
return 0;
}
static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
{
dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock);
if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
pcmcia_bus_suspend_callback)) {
pcmcia_bus_resume(skt);
return -EIO;
}
return 0;
}
static int pcmcia_bus_remove(struct pcmcia_socket *skt)
{
atomic_set(&skt->present, 0);
pcmcia_card_remove(skt, NULL);
mutex_lock(&skt->ops_mutex);
destroy_cis_cache(skt);
pcmcia_cleanup_irq(skt);
mutex_unlock(&skt->ops_mutex);
return 0;
}
static int pcmcia_bus_add(struct pcmcia_socket *skt)
{
atomic_set(&skt->present, 1);
mutex_lock(&skt->ops_mutex);
skt->pcmcia_pfc = 0;
destroy_cis_cache(skt); /* to be on the safe side... */
mutex_unlock(&skt->ops_mutex);
pcmcia_card_add(skt);
return 0;
}
static int pcmcia_bus_early_resume(struct pcmcia_socket *skt)
{
if (!verify_cis_cache(skt))
return 0;
dev_dbg(&skt->dev, "cis mismatch - different card\n");
/* first, remove the card */
pcmcia_bus_remove(skt);
mutex_lock(&skt->ops_mutex);
destroy_cis_cache(skt);
kfree(skt->fake_cis);
skt->fake_cis = NULL;
skt->functions = 0;
mutex_unlock(&skt->ops_mutex);
/* now, add the new card */
pcmcia_bus_add(skt);
return 0;
}
/*
* NOTE: This is racy. There's no guarantee the card will still be
* physically present, even if the call to this function returns
* non-NULL. Furthermore, the device driver most likely is unbound
* almost immediately, so the timeframe where pcmcia_dev_present
* returns NULL is probably really really small.
*/
struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_device *ret = NULL;
p_dev = pcmcia_get_dev(_p_dev);
if (!p_dev)
return NULL;
if (atomic_read(&p_dev->socket->present) != 0)
ret = p_dev;
pcmcia_put_dev(p_dev);
return ret;
}
EXPORT_SYMBOL(pcmcia_dev_present);
static struct pcmcia_callback pcmcia_bus_callback = {
.owner = THIS_MODULE,
.add = pcmcia_bus_add,
.remove = pcmcia_bus_remove,
.requery = pcmcia_requery,
.validate = pccard_validate_cis,
.suspend = pcmcia_bus_suspend,
.early_resume = pcmcia_bus_early_resume,
.resume = pcmcia_bus_resume,
};
static int pcmcia_bus_add_socket(struct device *dev)
{
struct pcmcia_socket *socket = dev_get_drvdata(dev);
int ret;
socket = pcmcia_get_socket(socket);
if (!socket) {
dev_err(dev, "PCMCIA obtaining reference to socket failed\n");
return -ENODEV;
}
ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
if (ret) {
dev_err(dev, "PCMCIA registration failed\n");
pcmcia_put_socket(socket);
return ret;
}
INIT_LIST_HEAD(&socket->devices_list);
socket->pcmcia_pfc = 0;
socket->device_count = 0;
atomic_set(&socket->present, 0);
ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback);
if (ret) {
dev_err(dev, "PCMCIA registration failed\n");
pcmcia_put_socket(socket);
return ret;
}
return 0;
}
static void pcmcia_bus_remove_socket(struct device *dev)
{
struct pcmcia_socket *socket = dev_get_drvdata(dev);
if (!socket)
return;
pccard_register_pcmcia(socket, NULL);
/* unregister any unbound devices */
mutex_lock(&socket->skt_mutex);
pcmcia_card_remove(socket, NULL);
release_cis_mem(socket);
mutex_unlock(&socket->skt_mutex);
sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
pcmcia_put_socket(socket);
return;
}
/* the pcmcia_bus_interface is used to handle pcmcia socket devices */
static struct class_interface pcmcia_bus_interface __refdata = {
.class = &pcmcia_socket_class,
.add_dev = &pcmcia_bus_add_socket,
.remove_dev = &pcmcia_bus_remove_socket,
};
static const struct dev_pm_ops pcmcia_bus_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(pcmcia_dev_suspend, pcmcia_dev_resume)
};
struct bus_type pcmcia_bus_type = {
.name = "pcmcia",
.uevent = pcmcia_bus_uevent,
.match = pcmcia_bus_match,
.dev_groups = pcmcia_dev_groups,
.probe = pcmcia_device_probe,
.remove = pcmcia_device_remove,
.pm = &pcmcia_bus_pm_ops,
};
static int __init init_pcmcia_bus(void)
{
int ret;
ret = bus_register(&pcmcia_bus_type);
if (ret < 0) {
printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
return ret;
}
ret = class_interface_register(&pcmcia_bus_interface);
if (ret < 0) {
printk(KERN_WARNING
"pcmcia: class_interface_register error: %d\n", ret);
bus_unregister(&pcmcia_bus_type);
return ret;
}
return 0;
}
fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
* pcmcia_socket_class is already registered */
static void __exit exit_pcmcia_bus(void)
{
class_interface_unregister(&pcmcia_bus_interface);
bus_unregister(&pcmcia_bus_type);
}
module_exit(exit_pcmcia_bus);
MODULE_ALIAS("ds");
| linux-master | drivers/pcmcia/ds.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* cistpl.c -- 16-bit PCMCIA Card Information Structure parser
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/security.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <pcmcia/ss.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"
static const u_char mantissa[] = {
10, 12, 13, 15, 20, 25, 30, 35,
40, 45, 50, 55, 60, 70, 80, 90
};
static const u_int exponent[] = {
1, 10, 100, 1000, 10000, 100000, 1000000, 10000000
};
/* Convert an extended speed byte to a time in nanoseconds */
#define SPEED_CVT(v) \
(mantissa[(((v)>>3)&15)-1] * exponent[(v)&7] / 10)
/* Convert a power byte to a current in 0.1 microamps */
#define POWER_CVT(v) \
(mantissa[((v)>>3)&15] * exponent[(v)&7] / 10)
#define POWER_SCALE(v) (exponent[(v)&7])
/* Upper limit on reasonable # of tuples */
#define MAX_TUPLES 200
/* Bits in IRQInfo1 field */
#define IRQ_INFO2_VALID 0x10
/* 16-bit CIS? */
static int cis_width;
module_param(cis_width, int, 0444);
void release_cis_mem(struct pcmcia_socket *s)
{
mutex_lock(&s->ops_mutex);
if (s->cis_mem.flags & MAP_ACTIVE) {
s->cis_mem.flags &= ~MAP_ACTIVE;
s->ops->set_mem_map(s, &s->cis_mem);
if (s->cis_mem.res) {
release_resource(s->cis_mem.res);
kfree(s->cis_mem.res);
s->cis_mem.res = NULL;
}
iounmap(s->cis_virt);
s->cis_virt = NULL;
}
mutex_unlock(&s->ops_mutex);
}
/*
* set_cis_map() - map the card memory at "card_offset" into virtual space.
*
* If flags & MAP_ATTRIB, map the attribute space, otherwise
* map the memory space.
*
* Must be called with ops_mutex held.
*/
static void __iomem *set_cis_map(struct pcmcia_socket *s,
unsigned int card_offset, unsigned int flags)
{
pccard_mem_map *mem = &s->cis_mem;
int ret;
if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) {
mem->res = pcmcia_find_mem_region(0, s->map_size,
s->map_size, 0, s);
if (mem->res == NULL) {
dev_notice(&s->dev, "cs: unable to map card memory!\n");
return NULL;
}
s->cis_virt = NULL;
}
if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt))
s->cis_virt = ioremap(mem->res->start, s->map_size);
mem->card_start = card_offset;
mem->flags = flags;
ret = s->ops->set_mem_map(s, mem);
if (ret) {
iounmap(s->cis_virt);
s->cis_virt = NULL;
return NULL;
}
if (s->features & SS_CAP_STATIC_MAP) {
if (s->cis_virt)
iounmap(s->cis_virt);
s->cis_virt = ioremap(mem->static_start, s->map_size);
}
return s->cis_virt;
}
/* Bits in attr field */
#define IS_ATTR 1
#define IS_INDIRECT 8
/*
* pcmcia_read_cis_mem() - low-level function to read CIS memory
*
* must be called with ops_mutex held
*/
int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
u_int len, void *ptr)
{
void __iomem *sys, *end;
unsigned char *buf = ptr;
dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
if (attr & IS_INDIRECT) {
/* Indirect accesses use a bunch of special registers at fixed
locations in common memory */
u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
if (attr & IS_ATTR) {
addr *= 2;
flags = ICTRL0_AUTOINC;
}
sys = set_cis_map(s, 0, MAP_ACTIVE |
((cis_width) ? MAP_16BIT : 0));
if (!sys) {
dev_dbg(&s->dev, "could not map memory\n");
memset(ptr, 0xff, len);
return -1;
}
writeb(flags, sys+CISREG_ICTRL0);
writeb(addr & 0xff, sys+CISREG_IADDR0);
writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
for ( ; len > 0; len--, buf++)
*buf = readb(sys+CISREG_IDATA0);
} else {
u_int inc = 1, card_offset, flags;
if (addr > CISTPL_MAX_CIS_SIZE) {
dev_dbg(&s->dev,
"attempt to read CIS mem at addr %#x", addr);
memset(ptr, 0xff, len);
return -1;
}
flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
if (attr) {
flags |= MAP_ATTRIB;
inc++;
addr *= 2;
}
card_offset = addr & ~(s->map_size-1);
while (len) {
sys = set_cis_map(s, card_offset, flags);
if (!sys) {
dev_dbg(&s->dev, "could not map memory\n");
memset(ptr, 0xff, len);
return -1;
}
end = sys + s->map_size;
sys = sys + (addr & (s->map_size-1));
for ( ; len > 0; len--, buf++, sys += inc) {
if (sys == end)
break;
*buf = readb(sys);
}
card_offset += s->map_size;
addr = 0;
}
}
dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n",
*(u_char *)(ptr+0), *(u_char *)(ptr+1),
*(u_char *)(ptr+2), *(u_char *)(ptr+3));
return 0;
}
/*
* pcmcia_write_cis_mem() - low-level function to write CIS memory
*
* Probably only useful for writing one-byte registers. Must be called
* with ops_mutex held.
*/
int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
u_int len, void *ptr)
{
void __iomem *sys, *end;
unsigned char *buf = ptr;
dev_dbg(&s->dev,
"pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
if (attr & IS_INDIRECT) {
/* Indirect accesses use a bunch of special registers at fixed
locations in common memory */
u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
if (attr & IS_ATTR) {
addr *= 2;
flags = ICTRL0_AUTOINC;
}
sys = set_cis_map(s, 0, MAP_ACTIVE |
((cis_width) ? MAP_16BIT : 0));
if (!sys) {
dev_dbg(&s->dev, "could not map memory\n");
return -EINVAL;
}
writeb(flags, sys+CISREG_ICTRL0);
writeb(addr & 0xff, sys+CISREG_IADDR0);
writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
for ( ; len > 0; len--, buf++)
writeb(*buf, sys+CISREG_IDATA0);
} else {
u_int inc = 1, card_offset, flags;
flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
if (attr & IS_ATTR) {
flags |= MAP_ATTRIB;
inc++;
addr *= 2;
}
card_offset = addr & ~(s->map_size-1);
while (len) {
sys = set_cis_map(s, card_offset, flags);
if (!sys) {
dev_dbg(&s->dev, "could not map memory\n");
return -EINVAL;
}
end = sys + s->map_size;
sys = sys + (addr & (s->map_size-1));
for ( ; len > 0; len--, buf++, sys += inc) {
if (sys == end)
break;
writeb(*buf, sys);
}
card_offset += s->map_size;
addr = 0;
}
}
return 0;
}
/*
* read_cis_cache() - read CIS memory or its associated cache
*
* This is a wrapper around read_cis_mem, with the same interface,
* but which caches information, for cards whose CIS may not be
* readable all the time.
*/
static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
size_t len, void *ptr)
{
struct cis_cache_entry *cis;
int ret = 0;
if (s->state & SOCKET_CARDBUS)
return -EINVAL;
mutex_lock(&s->ops_mutex);
if (s->fake_cis) {
if (s->fake_cis_len >= addr+len)
memcpy(ptr, s->fake_cis+addr, len);
else {
memset(ptr, 0xff, len);
ret = -EINVAL;
}
mutex_unlock(&s->ops_mutex);
return ret;
}
list_for_each_entry(cis, &s->cis_cache, node) {
if (cis->addr == addr && cis->len == len && cis->attr == attr) {
memcpy(ptr, cis->cache, len);
mutex_unlock(&s->ops_mutex);
return 0;
}
}
ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr);
if (ret == 0) {
/* Copy data into the cache */
cis = kmalloc(sizeof(struct cis_cache_entry) + len, GFP_KERNEL);
if (cis) {
cis->addr = addr;
cis->len = len;
cis->attr = attr;
memcpy(cis->cache, ptr, len);
list_add(&cis->node, &s->cis_cache);
}
}
mutex_unlock(&s->ops_mutex);
return ret;
}
static void
remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len)
{
struct cis_cache_entry *cis;
mutex_lock(&s->ops_mutex);
list_for_each_entry(cis, &s->cis_cache, node)
if (cis->addr == addr && cis->len == len && cis->attr == attr) {
list_del(&cis->node);
kfree(cis);
break;
}
mutex_unlock(&s->ops_mutex);
}
/**
* destroy_cis_cache() - destroy the CIS cache
* @s: pcmcia_socket for which CIS cache shall be destroyed
*
* This destroys the CIS cache but keeps any fake CIS alive. Must be
* called with ops_mutex held.
*/
void destroy_cis_cache(struct pcmcia_socket *s)
{
struct list_head *l, *n;
struct cis_cache_entry *cis;
list_for_each_safe(l, n, &s->cis_cache) {
cis = list_entry(l, struct cis_cache_entry, node);
list_del(&cis->node);
kfree(cis);
}
}
/*
* verify_cis_cache() - does the CIS match what is in the CIS cache?
*/
int verify_cis_cache(struct pcmcia_socket *s)
{
struct cis_cache_entry *cis;
char *buf;
int ret;
if (s->state & SOCKET_CARDBUS)
return -EINVAL;
buf = kmalloc(256, GFP_KERNEL);
if (buf == NULL) {
dev_warn(&s->dev, "no memory for verifying CIS\n");
return -ENOMEM;
}
mutex_lock(&s->ops_mutex);
list_for_each_entry(cis, &s->cis_cache, node) {
int len = cis->len;
if (len > 256)
len = 256;
ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf);
if (ret || memcmp(buf, cis->cache, len) != 0) {
kfree(buf);
mutex_unlock(&s->ops_mutex);
return -1;
}
}
kfree(buf);
mutex_unlock(&s->ops_mutex);
return 0;
}
/*
* pcmcia_replace_cis() - use a replacement CIS instead of the card's CIS
*
* For really bad cards, we provide a facility for uploading a
* replacement CIS.
*/
int pcmcia_replace_cis(struct pcmcia_socket *s,
const u8 *data, const size_t len)
{
if (len > CISTPL_MAX_CIS_SIZE) {
dev_warn(&s->dev, "replacement CIS too big\n");
return -EINVAL;
}
mutex_lock(&s->ops_mutex);
kfree(s->fake_cis);
s->fake_cis = kmalloc(len, GFP_KERNEL);
if (s->fake_cis == NULL) {
dev_warn(&s->dev, "no memory to replace CIS\n");
mutex_unlock(&s->ops_mutex);
return -ENOMEM;
}
s->fake_cis_len = len;
memcpy(s->fake_cis, data, len);
dev_info(&s->dev, "Using replacement CIS\n");
mutex_unlock(&s->ops_mutex);
return 0;
}
/* The high-level CIS tuple services */
struct tuple_flags {
u_int link_space:4;
u_int has_link:1;
u_int mfc_fn:3;
u_int space:4;
};
#define LINK_SPACE(f) (((struct tuple_flags *)(&(f)))->link_space)
#define HAS_LINK(f) (((struct tuple_flags *)(&(f)))->has_link)
#define MFC_FN(f) (((struct tuple_flags *)(&(f)))->mfc_fn)
#define SPACE(f) (((struct tuple_flags *)(&(f)))->space)
int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function,
tuple_t *tuple)
{
if (!s)
return -EINVAL;
if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
return -ENODEV;
tuple->TupleLink = tuple->Flags = 0;
/* Assume presence of a LONGLINK_C to address 0 */
tuple->CISOffset = tuple->LinkOffset = 0;
SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
cisdata_t req = tuple->DesiredTuple;
tuple->DesiredTuple = CISTPL_LONGLINK_MFC;
if (pccard_get_next_tuple(s, function, tuple) == 0) {
tuple->DesiredTuple = CISTPL_LINKTARGET;
if (pccard_get_next_tuple(s, function, tuple) != 0)
return -ENOSPC;
} else
tuple->CISOffset = tuple->TupleLink = 0;
tuple->DesiredTuple = req;
}
return pccard_get_next_tuple(s, function, tuple);
}
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
{
u_char link[5];
u_int ofs;
int ret;
if (MFC_FN(tuple->Flags)) {
/* Get indirect link from the MFC tuple */
ret = read_cis_cache(s, LINK_SPACE(tuple->Flags),
tuple->LinkOffset, 5, link);
if (ret)
return -1;
ofs = get_unaligned_le32(link + 1);
SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR);
/* Move to the next indirect link */
tuple->LinkOffset += 5;
MFC_FN(tuple->Flags)--;
} else if (HAS_LINK(tuple->Flags)) {
ofs = tuple->LinkOffset;
SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags);
HAS_LINK(tuple->Flags) = 0;
} else
return -1;
if (SPACE(tuple->Flags)) {
/* This is ugly, but a common CIS error is to code the long
link offset incorrectly, so we check the right spot... */
ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
if (ret)
return -1;
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
(strncmp(link+2, "CIS", 3) == 0))
return ofs;
remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
/* Then, we try the wrong spot... */
ofs = ofs >> 1;
}
ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
if (ret)
return -1;
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
(strncmp(link+2, "CIS", 3) == 0))
return ofs;
remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
return -1;
}
int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
tuple_t *tuple)
{
u_char link[2], tmp;
int ofs, i, attr;
int ret;
if (!s)
return -EINVAL;
if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
return -ENODEV;
link[1] = tuple->TupleLink;
ofs = tuple->CISOffset + tuple->TupleLink;
attr = SPACE(tuple->Flags);
for (i = 0; i < MAX_TUPLES; i++) {
if (link[1] == 0xff)
link[0] = CISTPL_END;
else {
ret = read_cis_cache(s, attr, ofs, 2, link);
if (ret)
return -1;
if (link[0] == CISTPL_NULL) {
ofs++;
continue;
}
}
/* End of chain? Follow long link if possible */
if (link[0] == CISTPL_END) {
ofs = follow_link(s, tuple);
if (ofs < 0)
return -ENOSPC;
attr = SPACE(tuple->Flags);
ret = read_cis_cache(s, attr, ofs, 2, link);
if (ret)
return -1;
}
/* Is this a link tuple? Make a note of it */
if ((link[0] == CISTPL_LONGLINK_A) ||
(link[0] == CISTPL_LONGLINK_C) ||
(link[0] == CISTPL_LONGLINK_MFC) ||
(link[0] == CISTPL_LINKTARGET) ||
(link[0] == CISTPL_INDIRECT) ||
(link[0] == CISTPL_NO_LINK)) {
switch (link[0]) {
case CISTPL_LONGLINK_A:
HAS_LINK(tuple->Flags) = 1;
LINK_SPACE(tuple->Flags) = attr | IS_ATTR;
ret = read_cis_cache(s, attr, ofs+2, 4,
&tuple->LinkOffset);
if (ret)
return -1;
break;
case CISTPL_LONGLINK_C:
HAS_LINK(tuple->Flags) = 1;
LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR;
ret = read_cis_cache(s, attr, ofs+2, 4,
&tuple->LinkOffset);
if (ret)
return -1;
break;
case CISTPL_INDIRECT:
HAS_LINK(tuple->Flags) = 1;
LINK_SPACE(tuple->Flags) = IS_ATTR |
IS_INDIRECT;
tuple->LinkOffset = 0;
break;
case CISTPL_LONGLINK_MFC:
tuple->LinkOffset = ofs + 3;
LINK_SPACE(tuple->Flags) = attr;
if (function == BIND_FN_ALL) {
/* Follow all the MFC links */
ret = read_cis_cache(s, attr, ofs+2,
1, &tmp);
if (ret)
return -1;
MFC_FN(tuple->Flags) = tmp;
} else {
/* Follow exactly one of the links */
MFC_FN(tuple->Flags) = 1;
tuple->LinkOffset += function * 5;
}
break;
case CISTPL_NO_LINK:
HAS_LINK(tuple->Flags) = 0;
break;
}
if ((tuple->Attributes & TUPLE_RETURN_LINK) &&
(tuple->DesiredTuple == RETURN_FIRST_TUPLE))
break;
} else
if (tuple->DesiredTuple == RETURN_FIRST_TUPLE)
break;
if (link[0] == tuple->DesiredTuple)
break;
ofs += link[1] + 2;
}
if (i == MAX_TUPLES) {
dev_dbg(&s->dev, "cs: overrun in pcmcia_get_next_tuple\n");
return -ENOSPC;
}
tuple->TupleCode = link[0];
tuple->TupleLink = link[1];
tuple->CISOffset = ofs + 2;
return 0;
}
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
{
u_int len;
int ret;
if (!s)
return -EINVAL;
if (tuple->TupleLink < tuple->TupleOffset)
return -ENOSPC;
len = tuple->TupleLink - tuple->TupleOffset;
tuple->TupleDataLen = tuple->TupleLink;
if (len == 0)
return 0;
ret = read_cis_cache(s, SPACE(tuple->Flags),
tuple->CISOffset + tuple->TupleOffset,
min(len, (u_int) tuple->TupleDataMax),
tuple->TupleData);
if (ret)
return -1;
return 0;
}
/* Parsing routines for individual tuples */
static int parse_device(tuple_t *tuple, cistpl_device_t *device)
{
int i;
u_char scale;
u_char *p, *q;
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
device->ndev = 0;
for (i = 0; i < CISTPL_MAX_DEVICES; i++) {
if (*p == 0xff)
break;
device->dev[i].type = (*p >> 4);
device->dev[i].wp = (*p & 0x08) ? 1 : 0;
switch (*p & 0x07) {
case 0:
device->dev[i].speed = 0;
break;
case 1:
device->dev[i].speed = 250;
break;
case 2:
device->dev[i].speed = 200;
break;
case 3:
device->dev[i].speed = 150;
break;
case 4:
device->dev[i].speed = 100;
break;
case 7:
if (++p == q)
return -EINVAL;
device->dev[i].speed = SPEED_CVT(*p);
while (*p & 0x80)
if (++p == q)
return -EINVAL;
break;
default:
return -EINVAL;
}
if (++p == q)
return -EINVAL;
if (*p == 0xff)
break;
scale = *p & 7;
if (scale == 7)
return -EINVAL;
device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2));
device->ndev++;
if (++p == q)
break;
}
return 0;
}
static int parse_checksum(tuple_t *tuple, cistpl_checksum_t *csum)
{
u_char *p;
if (tuple->TupleDataLen < 5)
return -EINVAL;
p = (u_char *) tuple->TupleData;
csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2;
csum->len = get_unaligned_le16(p + 2);
csum->sum = *(p + 4);
return 0;
}
static int parse_longlink(tuple_t *tuple, cistpl_longlink_t *link)
{
if (tuple->TupleDataLen < 4)
return -EINVAL;
link->addr = get_unaligned_le32(tuple->TupleData);
return 0;
}
static int parse_longlink_mfc(tuple_t *tuple, cistpl_longlink_mfc_t *link)
{
u_char *p;
int i;
p = (u_char *)tuple->TupleData;
link->nfn = *p; p++;
if (tuple->TupleDataLen <= link->nfn*5)
return -EINVAL;
for (i = 0; i < link->nfn; i++) {
link->fn[i].space = *p; p++;
link->fn[i].addr = get_unaligned_le32(p);
p += 4;
}
return 0;
}
static int parse_strings(u_char *p, u_char *q, int max,
char *s, u_char *ofs, u_char *found)
{
int i, j, ns;
if (p == q)
return -EINVAL;
ns = 0; j = 0;
for (i = 0; i < max; i++) {
if (*p == 0xff)
break;
ofs[i] = j;
ns++;
for (;;) {
s[j++] = (*p == 0xff) ? '\0' : *p;
if ((*p == '\0') || (*p == 0xff))
break;
if (++p == q)
return -EINVAL;
}
if ((*p == 0xff) || (++p == q))
break;
}
if (found) {
*found = ns;
return 0;
}
return (ns == max) ? 0 : -EINVAL;
}
static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1)
{
u_char *p, *q;
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
vers_1->major = *p; p++;
vers_1->minor = *p; p++;
if (p >= q)
return -EINVAL;
return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS,
vers_1->str, vers_1->ofs, &vers_1->ns);
}
static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr)
{
u_char *p, *q;
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS,
altstr->str, altstr->ofs, &altstr->ns);
}
static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec)
{
u_char *p, *q;
int nid;
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) {
if (p > q-2)
break;
jedec->id[nid].mfr = p[0];
jedec->id[nid].info = p[1];
p += 2;
}
jedec->nid = nid;
return 0;
}
static int parse_manfid(tuple_t *tuple, cistpl_manfid_t *m)
{
if (tuple->TupleDataLen < 4)
return -EINVAL;
m->manf = get_unaligned_le16(tuple->TupleData);
m->card = get_unaligned_le16(tuple->TupleData + 2);
return 0;
}
static int parse_funcid(tuple_t *tuple, cistpl_funcid_t *f)
{
u_char *p;
if (tuple->TupleDataLen < 2)
return -EINVAL;
p = (u_char *)tuple->TupleData;
f->func = p[0];
f->sysinit = p[1];
return 0;
}
static int parse_funce(tuple_t *tuple, cistpl_funce_t *f)
{
u_char *p;
int i;
if (tuple->TupleDataLen < 1)
return -EINVAL;
p = (u_char *)tuple->TupleData;
f->type = p[0];
for (i = 1; i < tuple->TupleDataLen; i++)
f->data[i-1] = p[i];
return 0;
}
static int parse_config(tuple_t *tuple, cistpl_config_t *config)
{
int rasz, rmsz, i;
u_char *p;
p = (u_char *)tuple->TupleData;
rasz = *p & 0x03;
rmsz = (*p & 0x3c) >> 2;
if (tuple->TupleDataLen < rasz+rmsz+4)
return -EINVAL;
config->last_idx = *(++p);
p++;
config->base = 0;
for (i = 0; i <= rasz; i++)
config->base += p[i] << (8*i);
p += rasz+1;
for (i = 0; i < 4; i++)
config->rmask[i] = 0;
for (i = 0; i <= rmsz; i++)
config->rmask[i>>2] += p[i] << (8*(i%4));
config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4);
return 0;
}
/* The following routines are all used to parse the nightmarish
* config table entries.
*/
static u_char *parse_power(u_char *p, u_char *q, cistpl_power_t *pwr)
{
int i;
u_int scale;
if (p == q)
return NULL;
pwr->present = *p;
pwr->flags = 0;
p++;
for (i = 0; i < 7; i++)
if (pwr->present & (1<<i)) {
if (p == q)
return NULL;
pwr->param[i] = POWER_CVT(*p);
scale = POWER_SCALE(*p);
while (*p & 0x80) {
if (++p == q)
return NULL;
if ((*p & 0x7f) < 100)
pwr->param[i] +=
(*p & 0x7f) * scale / 100;
else if (*p == 0x7d)
pwr->flags |= CISTPL_POWER_HIGHZ_OK;
else if (*p == 0x7e)
pwr->param[i] = 0;
else if (*p == 0x7f)
pwr->flags |= CISTPL_POWER_HIGHZ_REQ;
else
return NULL;
}
p++;
}
return p;
}
static u_char *parse_timing(u_char *p, u_char *q, cistpl_timing_t *timing)
{
u_char scale;
if (p == q)
return NULL;
scale = *p;
if ((scale & 3) != 3) {
if (++p == q)
return NULL;
timing->wait = SPEED_CVT(*p);
timing->waitscale = exponent[scale & 3];
} else
timing->wait = 0;
scale >>= 2;
if ((scale & 7) != 7) {
if (++p == q)
return NULL;
timing->ready = SPEED_CVT(*p);
timing->rdyscale = exponent[scale & 7];
} else
timing->ready = 0;
scale >>= 3;
if (scale != 7) {
if (++p == q)
return NULL;
timing->reserved = SPEED_CVT(*p);
timing->rsvscale = exponent[scale];
} else
timing->reserved = 0;
p++;
return p;
}
static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io)
{
int i, j, bsz, lsz;
if (p == q)
return NULL;
io->flags = *p;
if (!(*p & 0x80)) {
io->nwin = 1;
io->win[0].base = 0;
io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK));
return p+1;
}
if (++p == q)
return NULL;
io->nwin = (*p & 0x0f) + 1;
bsz = (*p & 0x30) >> 4;
if (bsz == 3)
bsz++;
lsz = (*p & 0xc0) >> 6;
if (lsz == 3)
lsz++;
p++;
for (i = 0; i < io->nwin; i++) {
io->win[i].base = 0;
io->win[i].len = 1;
for (j = 0; j < bsz; j++, p++) {
if (p == q)
return NULL;
io->win[i].base += *p << (j*8);
}
for (j = 0; j < lsz; j++, p++) {
if (p == q)
return NULL;
io->win[i].len += *p << (j*8);
}
}
return p;
}
static u_char *parse_mem(u_char *p, u_char *q, cistpl_mem_t *mem)
{
int i, j, asz, lsz, has_ha;
u_int len, ca, ha;
if (p == q)
return NULL;
mem->nwin = (*p & 0x07) + 1;
lsz = (*p & 0x18) >> 3;
asz = (*p & 0x60) >> 5;
has_ha = (*p & 0x80);
if (++p == q)
return NULL;
for (i = 0; i < mem->nwin; i++) {
len = ca = ha = 0;
for (j = 0; j < lsz; j++, p++) {
if (p == q)
return NULL;
len += *p << (j*8);
}
for (j = 0; j < asz; j++, p++) {
if (p == q)
return NULL;
ca += *p << (j*8);
}
if (has_ha)
for (j = 0; j < asz; j++, p++) {
if (p == q)
return NULL;
ha += *p << (j*8);
}
mem->win[i].len = len << 8;
mem->win[i].card_addr = ca << 8;
mem->win[i].host_addr = ha << 8;
}
return p;
}
static u_char *parse_irq(u_char *p, u_char *q, cistpl_irq_t *irq)
{
if (p == q)
return NULL;
irq->IRQInfo1 = *p; p++;
if (irq->IRQInfo1 & IRQ_INFO2_VALID) {
if (p+2 > q)
return NULL;
irq->IRQInfo2 = (p[1]<<8) + p[0];
p += 2;
}
return p;
}
static int parse_cftable_entry(tuple_t *tuple,
cistpl_cftable_entry_t *entry)
{
u_char *p, *q, features;
p = tuple->TupleData;
q = p + tuple->TupleDataLen;
entry->index = *p & 0x3f;
entry->flags = 0;
if (*p & 0x40)
entry->flags |= CISTPL_CFTABLE_DEFAULT;
if (*p & 0x80) {
if (++p == q)
return -EINVAL;
if (*p & 0x10)
entry->flags |= CISTPL_CFTABLE_BVDS;
if (*p & 0x20)
entry->flags |= CISTPL_CFTABLE_WP;
if (*p & 0x40)
entry->flags |= CISTPL_CFTABLE_RDYBSY;
if (*p & 0x80)
entry->flags |= CISTPL_CFTABLE_MWAIT;
entry->interface = *p & 0x0f;
} else
entry->interface = 0;
/* Process optional features */
if (++p == q)
return -EINVAL;
features = *p; p++;
/* Power options */
if ((features & 3) > 0) {
p = parse_power(p, q, &entry->vcc);
if (p == NULL)
return -EINVAL;
} else
entry->vcc.present = 0;
if ((features & 3) > 1) {
p = parse_power(p, q, &entry->vpp1);
if (p == NULL)
return -EINVAL;
} else
entry->vpp1.present = 0;
if ((features & 3) > 2) {
p = parse_power(p, q, &entry->vpp2);
if (p == NULL)
return -EINVAL;
} else
entry->vpp2.present = 0;
/* Timing options */
if (features & 0x04) {
p = parse_timing(p, q, &entry->timing);
if (p == NULL)
return -EINVAL;
} else {
entry->timing.wait = 0;
entry->timing.ready = 0;
entry->timing.reserved = 0;
}
/* I/O window options */
if (features & 0x08) {
p = parse_io(p, q, &entry->io);
if (p == NULL)
return -EINVAL;
} else
entry->io.nwin = 0;
/* Interrupt options */
if (features & 0x10) {
p = parse_irq(p, q, &entry->irq);
if (p == NULL)
return -EINVAL;
} else
entry->irq.IRQInfo1 = 0;
switch (features & 0x60) {
case 0x00:
entry->mem.nwin = 0;
break;
case 0x20:
entry->mem.nwin = 1;
entry->mem.win[0].len = get_unaligned_le16(p) << 8;
entry->mem.win[0].card_addr = 0;
entry->mem.win[0].host_addr = 0;
p += 2;
if (p > q)
return -EINVAL;
break;
case 0x40:
entry->mem.nwin = 1;
entry->mem.win[0].len = get_unaligned_le16(p) << 8;
entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8;
entry->mem.win[0].host_addr = 0;
p += 4;
if (p > q)
return -EINVAL;
break;
case 0x60:
p = parse_mem(p, q, &entry->mem);
if (p == NULL)
return -EINVAL;
break;
}
/* Misc features */
if (features & 0x80) {
if (p == q)
return -EINVAL;
entry->flags |= (*p << 8);
while (*p & 0x80)
if (++p == q)
return -EINVAL;
p++;
}
entry->subtuples = q-p;
return 0;
}
static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo)
{
u_char *p, *q;
int n;
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
for (n = 0; n < CISTPL_MAX_DEVICES; n++) {
if (p > q-6)
break;
geo->geo[n].buswidth = p[0];
geo->geo[n].erase_block = 1 << (p[1]-1);
geo->geo[n].read_block = 1 << (p[2]-1);
geo->geo[n].write_block = 1 << (p[3]-1);
geo->geo[n].partition = 1 << (p[4]-1);
geo->geo[n].interleave = 1 << (p[5]-1);
p += 6;
}
geo->ngeo = n;
return 0;
}
static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2)
{
u_char *p, *q;
if (tuple->TupleDataLen < 10)
return -EINVAL;
p = tuple->TupleData;
q = p + tuple->TupleDataLen;
v2->vers = p[0];
v2->comply = p[1];
v2->dindex = get_unaligned_le16(p + 2);
v2->vspec8 = p[6];
v2->vspec9 = p[7];
v2->nhdr = p[8];
p += 9;
return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL);
}
static int parse_org(tuple_t *tuple, cistpl_org_t *org)
{
u_char *p, *q;
int i;
p = tuple->TupleData;
q = p + tuple->TupleDataLen;
if (p == q)
return -EINVAL;
org->data_org = *p;
if (++p == q)
return -EINVAL;
for (i = 0; i < 30; i++) {
org->desc[i] = *p;
if (*p == '\0')
break;
if (++p == q)
return -EINVAL;
}
return 0;
}
static int parse_format(tuple_t *tuple, cistpl_format_t *fmt)
{
u_char *p;
if (tuple->TupleDataLen < 10)
return -EINVAL;
p = tuple->TupleData;
fmt->type = p[0];
fmt->edc = p[1];
fmt->offset = get_unaligned_le32(p + 2);
fmt->length = get_unaligned_le32(p + 6);
return 0;
}
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
{
int ret = 0;
if (tuple->TupleDataLen > tuple->TupleDataMax)
return -EINVAL;
switch (tuple->TupleCode) {
case CISTPL_DEVICE:
case CISTPL_DEVICE_A:
ret = parse_device(tuple, &parse->device);
break;
case CISTPL_CHECKSUM:
ret = parse_checksum(tuple, &parse->checksum);
break;
case CISTPL_LONGLINK_A:
case CISTPL_LONGLINK_C:
ret = parse_longlink(tuple, &parse->longlink);
break;
case CISTPL_LONGLINK_MFC:
ret = parse_longlink_mfc(tuple, &parse->longlink_mfc);
break;
case CISTPL_VERS_1:
ret = parse_vers_1(tuple, &parse->version_1);
break;
case CISTPL_ALTSTR:
ret = parse_altstr(tuple, &parse->altstr);
break;
case CISTPL_JEDEC_A:
case CISTPL_JEDEC_C:
ret = parse_jedec(tuple, &parse->jedec);
break;
case CISTPL_MANFID:
ret = parse_manfid(tuple, &parse->manfid);
break;
case CISTPL_FUNCID:
ret = parse_funcid(tuple, &parse->funcid);
break;
case CISTPL_FUNCE:
ret = parse_funce(tuple, &parse->funce);
break;
case CISTPL_CONFIG:
ret = parse_config(tuple, &parse->config);
break;
case CISTPL_CFTABLE_ENTRY:
ret = parse_cftable_entry(tuple, &parse->cftable_entry);
break;
case CISTPL_DEVICE_GEO:
case CISTPL_DEVICE_GEO_A:
ret = parse_device_geo(tuple, &parse->device_geo);
break;
case CISTPL_VERS_2:
ret = parse_vers_2(tuple, &parse->vers_2);
break;
case CISTPL_ORG:
ret = parse_org(tuple, &parse->org);
break;
case CISTPL_FORMAT:
case CISTPL_FORMAT_A:
ret = parse_format(tuple, &parse->format);
break;
case CISTPL_NO_LINK:
case CISTPL_LINKTARGET:
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
if (ret)
pr_debug("parse_tuple failed %d\n", ret);
return ret;
}
EXPORT_SYMBOL(pcmcia_parse_tuple);
/**
* pccard_validate_cis() - check whether card has a sensible CIS
* @s: the struct pcmcia_socket we are to check
* @info: returns the number of tuples in the (valid) CIS, or 0
*
* This tries to determine if a card has a sensible CIS. In @info, it
* returns the number of tuples in the CIS, or 0 if the CIS looks bad. The
* checks include making sure several critical tuples are present and
* valid; seeing if the total number of tuples is reasonable; and
* looking for tuples that use reserved codes.
*
* The function returns 0 on success.
*/
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
{
tuple_t *tuple;
cisparse_t *p;
unsigned int count = 0;
int ret, reserved, dev_ok = 0, ident_ok = 0;
if (!s)
return -EINVAL;
if (s->functions || !(s->state & SOCKET_PRESENT)) {
WARN_ON(1);
return -EINVAL;
}
/* We do not want to validate the CIS cache... */
mutex_lock(&s->ops_mutex);
destroy_cis_cache(s);
mutex_unlock(&s->ops_mutex);
tuple = kmalloc(sizeof(*tuple), GFP_KERNEL);
if (tuple == NULL) {
dev_warn(&s->dev, "no memory to validate CIS\n");
return -ENOMEM;
}
p = kmalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL) {
kfree(tuple);
dev_warn(&s->dev, "no memory to validate CIS\n");
return -ENOMEM;
}
count = reserved = 0;
tuple->DesiredTuple = RETURN_FIRST_TUPLE;
tuple->Attributes = TUPLE_RETURN_COMMON;
ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple);
if (ret != 0)
goto done;
/* First tuple should be DEVICE; we should really have either that
or a CFTABLE_ENTRY of some sort */
if ((tuple->TupleCode == CISTPL_DEVICE) ||
(!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p)) ||
(!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p)))
dev_ok++;
/* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2
tuple, for card identification. Certain old D-Link and Linksys
cards have only a broken VERS_2 tuple; hence the bogus test. */
if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) ||
(pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) ||
(pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC))
ident_ok++;
if (!dev_ok && !ident_ok)
goto done;
for (count = 1; count < MAX_TUPLES; count++) {
ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple);
if (ret != 0)
break;
if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) ||
((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) ||
((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff)))
reserved++;
}
if ((count == MAX_TUPLES) || (reserved > 5) ||
((!dev_ok || !ident_ok) && (count > 10)))
count = 0;
ret = 0;
done:
/* invalidate CIS cache on failure */
if (!dev_ok || !ident_ok || !count) {
mutex_lock(&s->ops_mutex);
destroy_cis_cache(s);
mutex_unlock(&s->ops_mutex);
/* We differentiate between dev_ok, ident_ok and count
failures to allow for an override for anonymous cards
in ds.c */
if (!dev_ok || !ident_ok)
ret = -EIO;
else
ret = -EFAULT;
}
if (info)
*info = count;
kfree(tuple);
kfree(p);
return ret;
}
#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf,
loff_t off, size_t count)
{
tuple_t tuple;
int status, i;
loff_t pointer = 0;
ssize_t ret = 0;
u_char *tuplebuffer;
u_char *tempbuffer;
tuplebuffer = kmalloc_array(256, sizeof(u_char), GFP_KERNEL);
if (!tuplebuffer)
return -ENOMEM;
tempbuffer = kmalloc_array(258, sizeof(u_char), GFP_KERNEL);
if (!tempbuffer) {
ret = -ENOMEM;
goto free_tuple;
}
memset(&tuple, 0, sizeof(tuple_t));
tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
tuple.DesiredTuple = RETURN_FIRST_TUPLE;
tuple.TupleOffset = 0;
status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
while (!status) {
tuple.TupleData = tuplebuffer;
tuple.TupleDataMax = 255;
memset(tuplebuffer, 0, sizeof(u_char) * 255);
status = pccard_get_tuple_data(s, &tuple);
if (status)
break;
if (off < (pointer + 2 + tuple.TupleDataLen)) {
tempbuffer[0] = tuple.TupleCode & 0xff;
tempbuffer[1] = tuple.TupleLink & 0xff;
for (i = 0; i < tuple.TupleDataLen; i++)
tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
if (((i + pointer) >= off) &&
(i + pointer) < (off + count)) {
buf[ret] = tempbuffer[i];
ret++;
}
}
}
pointer += 2 + tuple.TupleDataLen;
if (pointer >= (off + count))
break;
if (tuple.TupleCode == CISTPL_END)
break;
status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
}
kfree(tempbuffer);
free_tuple:
kfree(tuplebuffer);
return ret;
}
static ssize_t pccard_show_cis(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
unsigned int size = 0x200;
if (off >= size)
count = 0;
else {
struct pcmcia_socket *s;
unsigned int chains = 1;
if (off + count > size)
count = size - off;
s = to_socket(kobj_to_dev(kobj));
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (!s->functions && pccard_validate_cis(s, &chains))
return -EIO;
if (!chains)
return -ENODATA;
count = pccard_extract_cis(s, buf, off, count);
}
return count;
}
static ssize_t pccard_store_cis(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pcmcia_socket *s;
int error;
error = security_locked_down(LOCKDOWN_PCMCIA_CIS);
if (error)
return error;
s = to_socket(kobj_to_dev(kobj));
if (off)
return -EINVAL;
if (count >= CISTPL_MAX_CIS_SIZE)
return -EINVAL;
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
error = pcmcia_replace_cis(s, buf, count);
if (error)
return -EIO;
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
return count;
}
const struct bin_attribute pccard_cis_attr = {
.attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
.size = 0x200,
.read = pccard_show_cis,
.write = pccard_store_cis,
};
| linux-master | drivers/pcmcia/cistpl.c |
/*======================================================================
Device driver for Databook TCIC-2 PCMCIA controller
tcic.c 1.111 2000/02/15 04:13:12
The contents of this file are subject to the Mozilla Public
License Version 1.1 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
The initial developer of the original code is David A. Hinds
<[email protected]>. Portions created by David A. Hinds
are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
Alternatively, the contents of this file may be used under the
terms of the GNU General Public License version 2 (the "GPL"), in which
case the provisions of the GPL are applicable instead of the
above. If you wish to allow the use of your version of this file
only under the terms of the GPL and not to allow others to use
your version of this file under the MPL, indicate your decision
by deleting the provisions above and replace them with the notice
and other provisions required by the GPL. If you do not delete
the provisions above, a recipient may use your version of this
file under either the MPL or the GPL.
======================================================================*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <pcmcia/ss.h>
#include "tcic.h"
MODULE_AUTHOR("David Hinds <[email protected]>");
MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver");
MODULE_LICENSE("Dual MPL/GPL");
/*====================================================================*/
/* Parameters that can be set with 'insmod' */
/* The base port address of the TCIC-2 chip */
static unsigned long tcic_base = TCIC_BASE;
/* Specify a socket number to ignore */
static int ignore = -1;
/* Probe for safe interrupts? */
static int do_scan = 1;
/* Bit map of interrupts to choose from */
static u_int irq_mask = 0xffff;
static int irq_list[16];
static unsigned int irq_list_count;
/* The card status change interrupt -- 0 means autoselect */
static int cs_irq;
/* Poll status interval -- 0 means default to interrupt */
static int poll_interval;
/* Delay for card status double-checking */
static int poll_quick = HZ/20;
/* CCLK external clock time, in nanoseconds. 70 ns = 14.31818 MHz */
static int cycle_time = 70;
module_param_hw(tcic_base, ulong, ioport, 0444);
module_param(ignore, int, 0444);
module_param(do_scan, int, 0444);
module_param_hw(irq_mask, int, other, 0444);
module_param_hw_array(irq_list, int, irq, &irq_list_count, 0444);
module_param_hw(cs_irq, int, irq, 0444);
module_param(poll_interval, int, 0444);
module_param(poll_quick, int, 0444);
module_param(cycle_time, int, 0444);
/*====================================================================*/
static irqreturn_t tcic_interrupt(int irq, void *dev);
static void tcic_timer(struct timer_list *unused);
static struct pccard_operations tcic_operations;
struct tcic_socket {
u_short psock;
u_char last_sstat;
u_char id;
struct pcmcia_socket socket;
};
static struct timer_list poll_timer;
static int tcic_timer_pending;
static int sockets;
static struct tcic_socket socket_table[2];
/*====================================================================*/
/* Trick when selecting interrupts: the TCIC sktirq pin is supposed
to map to irq 11, but is coded as 0 or 1 in the irq registers. */
#define TCIC_IRQ(x) ((x) ? (((x) == 11) ? 1 : (x)) : 15)
#ifdef DEBUG_X
static u_char tcic_getb(u_char reg)
{
u_char val = inb(tcic_base+reg);
printk(KERN_DEBUG "tcic_getb(%#lx) = %#x\n", tcic_base+reg, val);
return val;
}
static u_short tcic_getw(u_char reg)
{
u_short val = inw(tcic_base+reg);
printk(KERN_DEBUG "tcic_getw(%#lx) = %#x\n", tcic_base+reg, val);
return val;
}
static void tcic_setb(u_char reg, u_char data)
{
printk(KERN_DEBUG "tcic_setb(%#lx, %#x)\n", tcic_base+reg, data);
outb(data, tcic_base+reg);
}
static void tcic_setw(u_char reg, u_short data)
{
printk(KERN_DEBUG "tcic_setw(%#lx, %#x)\n", tcic_base+reg, data);
outw(data, tcic_base+reg);
}
#else
#define tcic_getb(reg) inb(tcic_base+reg)
#define tcic_getw(reg) inw(tcic_base+reg)
#define tcic_setb(reg, data) outb(data, tcic_base+reg)
#define tcic_setw(reg, data) outw(data, tcic_base+reg)
#endif
static void tcic_setl(u_char reg, u_int data)
{
#ifdef DEBUG_X
printk(KERN_DEBUG "tcic_setl(%#x, %#lx)\n", tcic_base+reg, data);
#endif
outw(data & 0xffff, tcic_base+reg);
outw(data >> 16, tcic_base+reg+2);
}
static void tcic_aux_setb(u_short reg, u_char data)
{
u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
tcic_setb(TCIC_MODE, mode);
tcic_setb(TCIC_AUX, data);
}
static u_short tcic_aux_getw(u_short reg)
{
u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
tcic_setb(TCIC_MODE, mode);
return tcic_getw(TCIC_AUX);
}
static void tcic_aux_setw(u_short reg, u_short data)
{
u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
tcic_setb(TCIC_MODE, mode);
tcic_setw(TCIC_AUX, data);
}
/*====================================================================*/
/* Time conversion functions */
static int to_cycles(int ns)
{
if (ns < 14)
return 0;
else
return 2*(ns-14)/cycle_time;
}
/*====================================================================*/
static volatile u_int irq_hits;
static irqreturn_t __init tcic_irq_count(int irq, void *dev)
{
irq_hits++;
return IRQ_HANDLED;
}
static u_int __init try_irq(int irq)
{
u_short cfg;
irq_hits = 0;
if (request_irq(irq, tcic_irq_count, 0, "irq scan", tcic_irq_count) != 0)
return -1;
mdelay(10);
if (irq_hits) {
free_irq(irq, tcic_irq_count);
return -1;
}
/* Generate one interrupt */
cfg = TCIC_SYSCFG_AUTOBUSY | 0x0a00;
tcic_aux_setw(TCIC_AUX_SYSCFG, cfg | TCIC_IRQ(irq));
tcic_setb(TCIC_IENA, TCIC_IENA_ERR | TCIC_IENA_CFG_HIGH);
tcic_setb(TCIC_ICSR, TCIC_ICSR_ERR | TCIC_ICSR_JAM);
udelay(1000);
free_irq(irq, tcic_irq_count);
/* Turn off interrupts */
tcic_setb(TCIC_IENA, TCIC_IENA_CFG_OFF);
while (tcic_getb(TCIC_ICSR))
tcic_setb(TCIC_ICSR, TCIC_ICSR_JAM);
tcic_aux_setw(TCIC_AUX_SYSCFG, cfg);
return (irq_hits != 1);
}
static u_int __init irq_scan(u_int mask0)
{
u_int mask1;
int i;
#ifdef __alpha__
#define PIC 0x4d0
/* Don't probe level-triggered interrupts -- reserved for PCI */
int level_mask = inb_p(PIC) | (inb_p(PIC+1) << 8);
if (level_mask)
mask0 &= ~level_mask;
#endif
mask1 = 0;
if (do_scan) {
for (i = 0; i < 16; i++)
if ((mask0 & (1 << i)) && (try_irq(i) == 0))
mask1 |= (1 << i);
for (i = 0; i < 16; i++)
if ((mask1 & (1 << i)) && (try_irq(i) != 0)) {
mask1 ^= (1 << i);
}
}
if (mask1) {
printk("scanned");
} else {
/* Fallback: just find interrupts that aren't in use */
for (i = 0; i < 16; i++)
if ((mask0 & (1 << i)) &&
(request_irq(i, tcic_irq_count, 0, "x", tcic_irq_count) == 0)) {
mask1 |= (1 << i);
free_irq(i, tcic_irq_count);
}
printk("default");
}
printk(") = ");
for (i = 0; i < 16; i++)
if (mask1 & (1<<i))
printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);
printk(" ");
return mask1;
}
/*======================================================================
See if a card is present, powered up, in IO mode, and already
bound to a (non-PCMCIA) Linux driver.
We make an exception for cards that look like serial devices.
======================================================================*/
static int __init is_active(int s)
{
u_short scf1, ioctl, base, num;
u_char pwr, sstat;
u_int addr;
tcic_setl(TCIC_ADDR, (s << TCIC_ADDR_SS_SHFT)
| TCIC_ADDR_INDREG | TCIC_SCF1(s));
scf1 = tcic_getw(TCIC_DATA);
pwr = tcic_getb(TCIC_PWR);
sstat = tcic_getb(TCIC_SSTAT);
addr = TCIC_IWIN(s, 0);
tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);
base = tcic_getw(TCIC_DATA);
tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);
ioctl = tcic_getw(TCIC_DATA);
if (ioctl & TCIC_ICTL_TINY)
num = 1;
else {
num = (base ^ (base-1));
base = base & (base-1);
}
if ((sstat & TCIC_SSTAT_CD) && (pwr & TCIC_PWR_VCC(s)) &&
(scf1 & TCIC_SCF1_IOSTS) && (ioctl & TCIC_ICTL_ENA) &&
((base & 0xfeef) != 0x02e8)) {
struct resource *res = request_region(base, num, "tcic-2");
if (!res) /* region is busy */
return 1;
release_region(base, num);
}
return 0;
}
/*======================================================================
This returns the revision code for the specified socket.
======================================================================*/
static int __init get_tcic_id(void)
{
u_short id;
tcic_aux_setw(TCIC_AUX_TEST, TCIC_TEST_DIAG);
id = tcic_aux_getw(TCIC_AUX_ILOCK);
id = (id & TCIC_ILOCKTEST_ID_MASK) >> TCIC_ILOCKTEST_ID_SH;
tcic_aux_setw(TCIC_AUX_TEST, 0);
return id;
}
/*====================================================================*/
static struct platform_driver tcic_driver = {
.driver = {
.name = "tcic-pcmcia",
},
};
static struct platform_device tcic_device = {
.name = "tcic-pcmcia",
.id = 0,
};
static int __init init_tcic(void)
{
int i, sock, ret = 0;
u_int mask, scan;
if (platform_driver_register(&tcic_driver))
return -1;
printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: ");
sock = 0;
if (!request_region(tcic_base, 16, "tcic-2")) {
printk("could not allocate ports,\n ");
platform_driver_unregister(&tcic_driver);
return -ENODEV;
}
else {
tcic_setw(TCIC_ADDR, 0);
if (tcic_getw(TCIC_ADDR) == 0) {
tcic_setw(TCIC_ADDR, 0xc3a5);
if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;
}
if (sock == 0) {
/* See if resetting the controller does any good */
tcic_setb(TCIC_SCTRL, TCIC_SCTRL_RESET);
tcic_setb(TCIC_SCTRL, 0);
tcic_setw(TCIC_ADDR, 0);
if (tcic_getw(TCIC_ADDR) == 0) {
tcic_setw(TCIC_ADDR, 0xc3a5);
if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;
}
}
}
if (sock == 0) {
printk("not found.\n");
release_region(tcic_base, 16);
platform_driver_unregister(&tcic_driver);
return -ENODEV;
}
sockets = 0;
for (i = 0; i < sock; i++) {
if ((i == ignore) || is_active(i)) continue;
socket_table[sockets].psock = i;
socket_table[sockets].id = get_tcic_id();
socket_table[sockets].socket.owner = THIS_MODULE;
/* only 16-bit cards, memory windows must be size-aligned */
/* No PCI or CardBus support */
socket_table[sockets].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN;
/* irq 14, 11, 10, 7, 6, 5, 4, 3 */
socket_table[sockets].socket.irq_mask = 0x4cf8;
/* 4K minimum window size */
socket_table[sockets].socket.map_size = 0x1000;
sockets++;
}
switch (socket_table[0].id) {
case TCIC_ID_DB86082:
printk("DB86082"); break;
case TCIC_ID_DB86082A:
printk("DB86082A"); break;
case TCIC_ID_DB86084:
printk("DB86084"); break;
case TCIC_ID_DB86084A:
printk("DB86084A"); break;
case TCIC_ID_DB86072:
printk("DB86072"); break;
case TCIC_ID_DB86184:
printk("DB86184"); break;
case TCIC_ID_DB86082B:
printk("DB86082B"); break;
default:
printk("Unknown ID 0x%02x", socket_table[0].id);
}
/* Set up polling */
timer_setup(&poll_timer, &tcic_timer, 0);
/* Build interrupt mask */
printk(KERN_CONT ", %d sockets\n", sockets);
printk(KERN_INFO " irq list (");
if (irq_list_count == 0)
mask = irq_mask;
else
for (i = mask = 0; i < irq_list_count; i++)
mask |= (1<<irq_list[i]);
/* irq 14, 11, 10, 7, 6, 5, 4, 3 */
mask &= 0x4cf8;
/* Scan interrupts */
mask = irq_scan(mask);
for (i=0;i<sockets;i++)
socket_table[i].socket.irq_mask = mask;
/* Check for only two interrupts available */
scan = (mask & (mask-1));
if (((scan & (scan-1)) == 0) && (poll_interval == 0))
poll_interval = HZ;
if (poll_interval == 0) {
/* Avoid irq 12 unless it is explicitly requested */
u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
for (i = 15; i > 0; i--)
if ((cs_mask & (1 << i)) &&
(request_irq(i, tcic_interrupt, 0, "tcic",
tcic_interrupt) == 0))
break;
cs_irq = i;
if (cs_irq == 0) poll_interval = HZ;
}
if (socket_table[0].socket.irq_mask & (1 << 11))
printk("sktirq is irq 11, ");
if (cs_irq != 0)
printk("status change on irq %d\n", cs_irq);
else
printk("polled status, interval = %d ms\n",
poll_interval * 1000 / HZ);
for (i = 0; i < sockets; i++) {
tcic_setw(TCIC_ADDR+2, socket_table[i].psock << TCIC_SS_SHFT);
socket_table[i].last_sstat = tcic_getb(TCIC_SSTAT);
}
/* jump start interrupt handler, if needed */
tcic_interrupt(0, NULL);
platform_device_register(&tcic_device);
for (i = 0; i < sockets; i++) {
socket_table[i].socket.ops = &tcic_operations;
socket_table[i].socket.resource_ops = &pccard_nonstatic_ops;
socket_table[i].socket.dev.parent = &tcic_device.dev;
ret = pcmcia_register_socket(&socket_table[i].socket);
if (ret && i)
pcmcia_unregister_socket(&socket_table[0].socket);
}
return ret;
return 0;
} /* init_tcic */
/*====================================================================*/
static void __exit exit_tcic(void)
{
int i;
del_timer_sync(&poll_timer);
if (cs_irq != 0) {
tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00);
free_irq(cs_irq, tcic_interrupt);
}
release_region(tcic_base, 16);
for (i = 0; i < sockets; i++) {
pcmcia_unregister_socket(&socket_table[i].socket);
}
platform_device_unregister(&tcic_device);
platform_driver_unregister(&tcic_driver);
} /* exit_tcic */
/*====================================================================*/
static irqreturn_t tcic_interrupt(int irq, void *dev)
{
int i, quick = 0;
u_char latch, sstat;
u_short psock;
u_int events;
static volatile int active = 0;
if (active) {
printk(KERN_NOTICE "tcic: reentered interrupt handler!\n");
return IRQ_NONE;
} else
active = 1;
pr_debug("tcic_interrupt()\n");
for (i = 0; i < sockets; i++) {
psock = socket_table[i].psock;
tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
| TCIC_ADDR_INDREG | TCIC_SCF1(psock));
sstat = tcic_getb(TCIC_SSTAT);
latch = sstat ^ socket_table[psock].last_sstat;
socket_table[i].last_sstat = sstat;
if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) {
tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR);
quick = 1;
}
if (latch == 0)
continue;
events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0;
events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0;
if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {
events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;
} else {
events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0;
events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;
events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;
}
if (events) {
pcmcia_parse_events(&socket_table[i].socket, events);
}
}
/* Schedule next poll, if needed */
if (((cs_irq == 0) || quick) && (!tcic_timer_pending)) {
poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval);
add_timer(&poll_timer);
tcic_timer_pending = 1;
}
active = 0;
pr_debug("interrupt done\n");
return IRQ_HANDLED;
} /* tcic_interrupt */
static void tcic_timer(struct timer_list *unused)
{
pr_debug("tcic_timer()\n");
tcic_timer_pending = 0;
tcic_interrupt(0, NULL);
} /* tcic_timer */
/*====================================================================*/
static int tcic_get_status(struct pcmcia_socket *sock, u_int *value)
{
u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
u_char reg;
tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
| TCIC_ADDR_INDREG | TCIC_SCF1(psock));
reg = tcic_getb(TCIC_SSTAT);
*value = (reg & TCIC_SSTAT_CD) ? SS_DETECT : 0;
*value |= (reg & TCIC_SSTAT_WP) ? SS_WRPROT : 0;
if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {
*value |= (reg & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;
} else {
*value |= (reg & TCIC_SSTAT_RDY) ? SS_READY : 0;
*value |= (reg & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;
*value |= (reg & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;
}
reg = tcic_getb(TCIC_PWR);
if (reg & (TCIC_PWR_VCC(psock)|TCIC_PWR_VPP(psock)))
*value |= SS_POWERON;
dev_dbg(&sock->dev, "GetStatus(%d) = %#2.2x\n", psock, *value);
return 0;
} /* tcic_get_status */
/*====================================================================*/
static int tcic_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
{
u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
u_char reg;
u_short scf1, scf2;
dev_dbg(&sock->dev, "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
"io_irq %d, csc_mask %#2.2x)\n", psock, state->flags,
state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
tcic_setw(TCIC_ADDR+2, (psock << TCIC_SS_SHFT) | TCIC_ADR2_INDREG);
reg = tcic_getb(TCIC_PWR);
reg &= ~(TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock));
if (state->Vcc == 50) {
switch (state->Vpp) {
case 0: reg |= TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock); break;
case 50: reg |= TCIC_PWR_VCC(psock); break;
case 120: reg |= TCIC_PWR_VPP(psock); break;
default: return -EINVAL;
}
} else if (state->Vcc != 0)
return -EINVAL;
if (reg != tcic_getb(TCIC_PWR))
tcic_setb(TCIC_PWR, reg);
reg = TCIC_ILOCK_HOLD_CCLK | TCIC_ILOCK_CWAIT;
if (state->flags & SS_OUTPUT_ENA) {
tcic_setb(TCIC_SCTRL, TCIC_SCTRL_ENA);
reg |= TCIC_ILOCK_CRESENA;
} else
tcic_setb(TCIC_SCTRL, 0);
if (state->flags & SS_RESET)
reg |= TCIC_ILOCK_CRESET;
tcic_aux_setb(TCIC_AUX_ILOCK, reg);
tcic_setw(TCIC_ADDR, TCIC_SCF1(psock));
scf1 = TCIC_SCF1_FINPACK;
scf1 |= TCIC_IRQ(state->io_irq);
if (state->flags & SS_IOCARD) {
scf1 |= TCIC_SCF1_IOSTS;
if (state->flags & SS_SPKR_ENA)
scf1 |= TCIC_SCF1_SPKR;
if (state->flags & SS_DMA_MODE)
scf1 |= TCIC_SCF1_DREQ2 << TCIC_SCF1_DMA_SHIFT;
}
tcic_setw(TCIC_DATA, scf1);
/* Some general setup stuff, and configure status interrupt */
reg = TCIC_WAIT_ASYNC | TCIC_WAIT_SENSE | to_cycles(250);
tcic_aux_setb(TCIC_AUX_WCTL, reg);
tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00|
TCIC_IRQ(cs_irq));
/* Card status change interrupt mask */
tcic_setw(TCIC_ADDR, TCIC_SCF2(psock));
scf2 = TCIC_SCF2_MALL;
if (state->csc_mask & SS_DETECT) scf2 &= ~TCIC_SCF2_MCD;
if (state->flags & SS_IOCARD) {
if (state->csc_mask & SS_STSCHG) reg &= ~TCIC_SCF2_MLBAT1;
} else {
if (state->csc_mask & SS_BATDEAD) reg &= ~TCIC_SCF2_MLBAT1;
if (state->csc_mask & SS_BATWARN) reg &= ~TCIC_SCF2_MLBAT2;
if (state->csc_mask & SS_READY) reg &= ~TCIC_SCF2_MRDY;
}
tcic_setw(TCIC_DATA, scf2);
/* For the ISA bus, the irq should be active-high totem-pole */
tcic_setb(TCIC_IENA, TCIC_IENA_CDCHG | TCIC_IENA_CFG_HIGH);
return 0;
} /* tcic_set_socket */
/*====================================================================*/
static int tcic_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
{
u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
u_int addr;
u_short base, len, ioctl;
dev_dbg(&sock->dev, "SetIOMap(%d, %d, %#2.2x, %d ns, "
"%#llx-%#llx)\n", psock, io->map, io->flags, io->speed,
(unsigned long long)io->start, (unsigned long long)io->stop);
if ((io->map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||
(io->stop < io->start)) return -EINVAL;
tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
addr = TCIC_IWIN(psock, io->map);
base = io->start; len = io->stop - io->start;
/* Check to see that len+1 is power of two, etc */
if ((len & (len+1)) || (base & len)) return -EINVAL;
base |= (len+1)>>1;
tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);
tcic_setw(TCIC_DATA, base);
ioctl = (psock << TCIC_ICTL_SS_SHFT);
ioctl |= (len == 0) ? TCIC_ICTL_TINY : 0;
ioctl |= (io->flags & MAP_ACTIVE) ? TCIC_ICTL_ENA : 0;
ioctl |= to_cycles(io->speed) & TCIC_ICTL_WSCNT_MASK;
if (!(io->flags & MAP_AUTOSZ)) {
ioctl |= TCIC_ICTL_QUIET;
ioctl |= (io->flags & MAP_16BIT) ? TCIC_ICTL_BW_16 : TCIC_ICTL_BW_8;
}
tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);
tcic_setw(TCIC_DATA, ioctl);
return 0;
} /* tcic_set_io_map */
/*====================================================================*/
static int tcic_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
{
u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
u_short addr, ctl;
u_long base, len, mmap;
dev_dbg(&sock->dev, "SetMemMap(%d, %d, %#2.2x, %d ns, "
"%#llx-%#llx, %#x)\n", psock, mem->map, mem->flags,
mem->speed, (unsigned long long)mem->res->start,
(unsigned long long)mem->res->end, mem->card_start);
if ((mem->map > 3) || (mem->card_start > 0x3ffffff) ||
(mem->res->start > 0xffffff) || (mem->res->end > 0xffffff) ||
(mem->res->start > mem->res->end) || (mem->speed > 1000))
return -EINVAL;
tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
addr = TCIC_MWIN(psock, mem->map);
base = mem->res->start; len = mem->res->end - mem->res->start;
if ((len & (len+1)) || (base & len)) return -EINVAL;
if (len == 0x0fff)
base = (base >> TCIC_MBASE_HA_SHFT) | TCIC_MBASE_4K_BIT;
else
base = (base | (len+1)>>1) >> TCIC_MBASE_HA_SHFT;
tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X);
tcic_setw(TCIC_DATA, base);
mmap = mem->card_start - mem->res->start;
mmap = (mmap >> TCIC_MMAP_CA_SHFT) & TCIC_MMAP_CA_MASK;
if (mem->flags & MAP_ATTRIB) mmap |= TCIC_MMAP_REG;
tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X);
tcic_setw(TCIC_DATA, mmap);
ctl = TCIC_MCTL_QUIET | (psock << TCIC_MCTL_SS_SHFT);
ctl |= to_cycles(mem->speed) & TCIC_MCTL_WSCNT_MASK;
ctl |= (mem->flags & MAP_16BIT) ? 0 : TCIC_MCTL_B8;
ctl |= (mem->flags & MAP_WRPROT) ? TCIC_MCTL_WP : 0;
ctl |= (mem->flags & MAP_ACTIVE) ? TCIC_MCTL_ENA : 0;
tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X);
tcic_setw(TCIC_DATA, ctl);
return 0;
} /* tcic_set_mem_map */
/*====================================================================*/
static int tcic_init(struct pcmcia_socket *s)
{
int i;
struct resource res = { .start = 0, .end = 0x1000 };
pccard_io_map io = { 0, 0, 0, 0, 1 };
pccard_mem_map mem = { .res = &res, };
for (i = 0; i < 2; i++) {
io.map = i;
tcic_set_io_map(s, &io);
}
for (i = 0; i < 5; i++) {
mem.map = i;
tcic_set_mem_map(s, &mem);
}
return 0;
}
static struct pccard_operations tcic_operations = {
.init = tcic_init,
.get_status = tcic_get_status,
.set_socket = tcic_set_socket,
.set_io_map = tcic_set_io_map,
.set_mem_map = tcic_set_mem_map,
};
/*====================================================================*/
module_init(init_tcic);
module_exit(exit_tcic);
| linux-master | drivers/pcmcia/tcic.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* rsrc_iodyn.c -- Resource management routines for MEM-static sockets.
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
struct pcmcia_align_data {
unsigned long mask;
unsigned long offset;
};
static resource_size_t pcmcia_align(void *align_data,
const struct resource *res,
resource_size_t size, resource_size_t align)
{
struct pcmcia_align_data *data = align_data;
resource_size_t start;
start = (res->start & ~data->mask) + data->offset;
if (start < res->start)
start += data->mask + 1;
#ifdef CONFIG_X86
if (res->flags & IORESOURCE_IO) {
if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
}
#endif
#ifdef CONFIG_M68K
if (res->flags & IORESOURCE_IO) {
if ((res->start + size - 1) >= 1024)
start = res->end;
}
#endif
return start;
}
static struct resource *__iodyn_find_io_region(struct pcmcia_socket *s,
unsigned long base, int num,
unsigned long align)
{
struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO,
dev_name(&s->dev));
struct pcmcia_align_data data;
unsigned long min = base;
int ret;
data.mask = align - 1;
data.offset = base & data.mask;
#ifdef CONFIG_PCI
if (s->cb_dev) {
ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
min, 0, pcmcia_align, &data);
} else
#endif
ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
1, pcmcia_align, &data);
if (ret != 0) {
kfree(res);
res = NULL;
}
return res;
}
static int iodyn_find_io(struct pcmcia_socket *s, unsigned int attr,
unsigned int *base, unsigned int num,
unsigned int align, struct resource **parent)
{
int i, ret = 0;
/* Check for an already-allocated window that must conflict with
* what was asked for. It is a hack because it does not catch all
* potential conflicts, just the most obvious ones.
*/
for (i = 0; i < MAX_IO_WIN; i++) {
if (!s->io[i].res)
continue;
if (!*base)
continue;
if ((s->io[i].res->start & (align-1)) == *base)
return -EBUSY;
}
for (i = 0; i < MAX_IO_WIN; i++) {
struct resource *res = s->io[i].res;
unsigned int try;
if (res && (res->flags & IORESOURCE_BITS) !=
(attr & IORESOURCE_BITS))
continue;
if (!res) {
if (align == 0)
align = 0x10000;
res = s->io[i].res = __iodyn_find_io_region(s, *base,
num, align);
if (!res)
return -EINVAL;
*base = res->start;
s->io[i].res->flags =
((res->flags & ~IORESOURCE_BITS) |
(attr & IORESOURCE_BITS));
s->io[i].InUse = num;
*parent = res;
return 0;
}
/* Try to extend top of window */
try = res->end + 1;
if ((*base == 0) || (*base == try)) {
if (adjust_resource(s->io[i].res, res->start,
resource_size(res) + num))
continue;
*base = try;
s->io[i].InUse += num;
*parent = res;
return 0;
}
/* Try to extend bottom of window */
try = res->start - num;
if ((*base == 0) || (*base == try)) {
if (adjust_resource(s->io[i].res,
res->start - num,
resource_size(res) + num))
continue;
*base = try;
s->io[i].InUse += num;
*parent = res;
return 0;
}
}
return -EINVAL;
}
struct pccard_resource_ops pccard_iodyn_ops = {
.validate_mem = NULL,
.find_io = iodyn_find_io,
.find_mem = NULL,
.init = static_init,
.exit = NULL,
};
EXPORT_SYMBOL(pccard_iodyn_ops);
| linux-master | drivers/pcmcia/rsrc_iodyn.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* PCMCIA high-level CIS access functions
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* Copyright (C) 1999 David A. Hinds
* Copyright (C) 2004-2010 Dominik Brodowski
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ss.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"
/**
* pccard_read_tuple() - internal CIS tuple access
* @s: the struct pcmcia_socket where the card is inserted
* @function: the device function we loop for
* @code: which CIS code shall we look for?
* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
*
* pccard_read_tuple() reads out one tuple and attempts to parse it
*/
int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
cisdata_t code, void *parse)
{
tuple_t tuple;
cisdata_t *buf;
int ret;
buf = kmalloc(256, GFP_KERNEL);
if (buf == NULL) {
dev_warn(&s->dev, "no memory to read tuple\n");
return -ENOMEM;
}
tuple.DesiredTuple = code;
tuple.Attributes = 0;
if (function == BIND_FN_ALL)
tuple.Attributes = TUPLE_RETURN_COMMON;
ret = pccard_get_first_tuple(s, function, &tuple);
if (ret != 0)
goto done;
tuple.TupleData = buf;
tuple.TupleOffset = 0;
tuple.TupleDataMax = 255;
ret = pccard_get_tuple_data(s, &tuple);
if (ret != 0)
goto done;
ret = pcmcia_parse_tuple(&tuple, parse);
done:
kfree(buf);
return ret;
}
/**
* pccard_loop_tuple() - loop over tuples in the CIS
* @s: the struct pcmcia_socket where the card is inserted
* @function: the device function we loop for
* @code: which CIS code shall we look for?
* @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
* @priv_data: private data to be passed to the loop_tuple function.
* @loop_tuple: function to call for each CIS entry of type @function. IT
* gets passed the raw tuple, the paresed tuple (if @parse is
* set) and @priv_data.
*
* pccard_loop_tuple() loops over all CIS entries of type @function, and
* calls the @loop_tuple function for each entry. If the call to @loop_tuple
* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
*/
static int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
cisdata_t code, cisparse_t *parse, void *priv_data,
int (*loop_tuple) (tuple_t *tuple,
cisparse_t *parse,
void *priv_data))
{
tuple_t tuple;
cisdata_t *buf;
int ret;
buf = kzalloc(256, GFP_KERNEL);
if (buf == NULL) {
dev_warn(&s->dev, "no memory to read tuple\n");
return -ENOMEM;
}
tuple.TupleData = buf;
tuple.TupleDataMax = 255;
tuple.TupleOffset = 0;
tuple.DesiredTuple = code;
tuple.Attributes = 0;
ret = pccard_get_first_tuple(s, function, &tuple);
while (!ret) {
if (pccard_get_tuple_data(s, &tuple))
goto next_entry;
if (parse)
if (pcmcia_parse_tuple(&tuple, parse))
goto next_entry;
ret = loop_tuple(&tuple, parse, priv_data);
if (!ret)
break;
next_entry:
ret = pccard_get_next_tuple(s, function, &tuple);
}
kfree(buf);
return ret;
}
/*
* pcmcia_io_cfg_data_width() - convert cfgtable to data path width parameter
*/
static int pcmcia_io_cfg_data_width(unsigned int flags)
{
if (!(flags & CISTPL_IO_8BIT))
return IO_DATA_PATH_WIDTH_16;
if (!(flags & CISTPL_IO_16BIT))
return IO_DATA_PATH_WIDTH_8;
return IO_DATA_PATH_WIDTH_AUTO;
}
struct pcmcia_cfg_mem {
struct pcmcia_device *p_dev;
int (*conf_check) (struct pcmcia_device *p_dev, void *priv_data);
void *priv_data;
cisparse_t parse;
cistpl_cftable_entry_t dflt;
};
/*
* pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
*
* pcmcia_do_loop_config() is the internal callback for the call from
* pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
* by a struct pcmcia_cfg_mem.
*/
static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
{
struct pcmcia_cfg_mem *cfg_mem = priv;
struct pcmcia_device *p_dev = cfg_mem->p_dev;
cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
cistpl_cftable_entry_t *dflt = &cfg_mem->dflt;
unsigned int flags = p_dev->config_flags;
unsigned int vcc = p_dev->socket->socket.Vcc;
dev_dbg(&p_dev->dev, "testing configuration %x, autoconf %x\n",
cfg->index, flags);
/* default values */
cfg_mem->p_dev->config_index = cfg->index;
if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
cfg_mem->dflt = *cfg;
/* check for matching Vcc? */
if (flags & CONF_AUTO_CHECK_VCC) {
if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
return -ENODEV;
} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
return -ENODEV;
}
}
/* set Vpp? */
if (flags & CONF_AUTO_SET_VPP) {
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
p_dev->vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
p_dev->vpp =
dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
}
/* enable audio? */
if ((flags & CONF_AUTO_AUDIO) && (cfg->flags & CISTPL_CFTABLE_AUDIO))
p_dev->config_flags |= CONF_ENABLE_SPKR;
/* IO window settings? */
if (flags & CONF_AUTO_SET_IO) {
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
int i = 0;
p_dev->resource[0]->start = p_dev->resource[0]->end = 0;
p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
if (io->nwin == 0)
return -ENODEV;
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[0]->flags |=
pcmcia_io_cfg_data_width(io->flags);
if (io->nwin > 1) {
/* For multifunction cards, by convention, we
* configure the network function with window 0,
* and serial with window 1 */
i = (io->win[1].len > io->win[0].len);
p_dev->resource[1]->flags = p_dev->resource[0]->flags;
p_dev->resource[1]->start = io->win[1-i].base;
p_dev->resource[1]->end = io->win[1-i].len;
}
p_dev->resource[0]->start = io->win[i].base;
p_dev->resource[0]->end = io->win[i].len;
p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
}
/* MEM window settings? */
if (flags & CONF_AUTO_SET_IOMEM) {
/* so far, we only set one memory window */
cistpl_mem_t *mem = (cfg->mem.nwin) ? &cfg->mem : &dflt->mem;
p_dev->resource[2]->start = p_dev->resource[2]->end = 0;
if (mem->nwin == 0)
return -ENODEV;
p_dev->resource[2]->start = mem->win[0].host_addr;
p_dev->resource[2]->end = mem->win[0].len;
if (p_dev->resource[2]->end < 0x1000)
p_dev->resource[2]->end = 0x1000;
p_dev->card_addr = mem->win[0].card_addr;
}
dev_dbg(&p_dev->dev,
"checking configuration %x: %pr %pr %pr (%d lines)\n",
p_dev->config_index, p_dev->resource[0], p_dev->resource[1],
p_dev->resource[2], p_dev->io_lines);
return cfg_mem->conf_check(p_dev, cfg_mem->priv_data);
}
/**
* pcmcia_loop_config() - loop over configuration options
* @p_dev: the struct pcmcia_device which we need to loop for.
* @conf_check: function to call for each configuration option.
* It gets passed the struct pcmcia_device and private data
* being passed to pcmcia_loop_config()
* @priv_data: private data to be passed to the conf_check function.
*
* pcmcia_loop_config() loops over all configuration options, and calls
* the driver-specific conf_check() for each one, checking whether
* it is a valid one. Returns 0 on success or errorcode otherwise.
*/
int pcmcia_loop_config(struct pcmcia_device *p_dev,
int (*conf_check) (struct pcmcia_device *p_dev,
void *priv_data),
void *priv_data)
{
struct pcmcia_cfg_mem *cfg_mem;
int ret;
cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL);
if (cfg_mem == NULL)
return -ENOMEM;
cfg_mem->p_dev = p_dev;
cfg_mem->conf_check = conf_check;
cfg_mem->priv_data = priv_data;
ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
cfg_mem, pcmcia_do_loop_config);
kfree(cfg_mem);
return ret;
}
EXPORT_SYMBOL(pcmcia_loop_config);
struct pcmcia_loop_mem {
struct pcmcia_device *p_dev;
void *priv_data;
int (*loop_tuple) (struct pcmcia_device *p_dev,
tuple_t *tuple,
void *priv_data);
};
/*
* pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
*
* pcmcia_do_loop_tuple() is the internal callback for the call from
* pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
* by a struct pcmcia_cfg_mem.
*/
static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
{
struct pcmcia_loop_mem *loop = priv;
return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
};
/**
* pcmcia_loop_tuple() - loop over tuples in the CIS
* @p_dev: the struct pcmcia_device which we need to loop for.
* @code: which CIS code shall we look for?
* @priv_data: private data to be passed to the loop_tuple function.
* @loop_tuple: function to call for each CIS entry of type @function. IT
* gets passed the raw tuple and @priv_data.
*
* pcmcia_loop_tuple() loops over all CIS entries of type @function, and
* calls the @loop_tuple function for each entry. If the call to @loop_tuple
* returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
*/
int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
int (*loop_tuple) (struct pcmcia_device *p_dev,
tuple_t *tuple,
void *priv_data),
void *priv_data)
{
struct pcmcia_loop_mem loop = {
.p_dev = p_dev,
.loop_tuple = loop_tuple,
.priv_data = priv_data};
return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
&loop, pcmcia_do_loop_tuple);
}
EXPORT_SYMBOL(pcmcia_loop_tuple);
struct pcmcia_loop_get {
size_t len;
cisdata_t **buf;
};
/*
* pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
*
* pcmcia_do_get_tuple() is the internal callback for the call from
* pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
* the first tuple, return 0 unconditionally. Create a memory buffer large
* enough to hold the content of the tuple, and fill it with the tuple data.
* The caller is responsible to free the buffer.
*/
static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
void *priv)
{
struct pcmcia_loop_get *get = priv;
*get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
if (*get->buf) {
get->len = tuple->TupleDataLen;
memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
} else
dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
return 0;
}
/**
* pcmcia_get_tuple() - get first tuple from CIS
* @p_dev: the struct pcmcia_device which we need to loop for.
* @code: which CIS code shall we look for?
* @buf: pointer to store the buffer to.
*
* pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
* It returns the buffer length (or zero). The caller is responsible to free
* the buffer passed in @buf.
*/
size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
unsigned char **buf)
{
struct pcmcia_loop_get get = {
.len = 0,
.buf = buf,
};
*get.buf = NULL;
pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
return get.len;
}
EXPORT_SYMBOL(pcmcia_get_tuple);
#ifdef CONFIG_NET
/*
* pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
*
* pcmcia_do_get_mac() is the internal callback for the call from
* pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
* tuple contains a proper LAN_NODE_ID of length 6, and copy the data
* to struct net_device->dev_addr[i].
*/
static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
void *priv)
{
struct net_device *dev = priv;
if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
return -EINVAL;
if (tuple->TupleDataLen < ETH_ALEN + 2) {
dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
"LAN_NODE_ID\n");
return -EINVAL;
}
if (tuple->TupleData[1] != ETH_ALEN) {
dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
return -EINVAL;
}
eth_hw_addr_set(dev, &tuple->TupleData[2]);
return 0;
}
/**
* pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
* @p_dev: the struct pcmcia_device for which we want the address.
* @dev: a properly prepared struct net_device to store the info to.
*
* pcmcia_get_mac_from_cis() reads out the hardware MAC address from
* CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
* must be set up properly by the driver (see examples!).
*/
int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
{
return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
}
EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
#endif /* CONFIG_NET */
| linux-master | drivers/pcmcia/pcmcia_cis.c |
// SPDX-License-Identifier: GPL-2.0
/*
* MAX1600 PCMCIA power switch library
*
* Copyright (C) 2016 Russell King
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include "max1600.h"
static const char *max1600_gpio_name[2][MAX1600_GPIO_MAX] = {
{ "a0vcc", "a1vcc", "a0vpp", "a1vpp" },
{ "b0vcc", "b1vcc", "b0vpp", "b1vpp" },
};
int max1600_init(struct device *dev, struct max1600 **ptr,
unsigned int channel, unsigned int code)
{
struct max1600 *m;
int chan;
int i;
switch (channel) {
case MAX1600_CHAN_A:
chan = 0;
break;
case MAX1600_CHAN_B:
chan = 1;
break;
default:
return -EINVAL;
}
if (code != MAX1600_CODE_LOW && code != MAX1600_CODE_HIGH)
return -EINVAL;
m = devm_kzalloc(dev, sizeof(*m), GFP_KERNEL);
if (!m)
return -ENOMEM;
m->dev = dev;
m->code = code;
for (i = 0; i < MAX1600_GPIO_MAX; i++) {
const char *name;
name = max1600_gpio_name[chan][i];
if (i != MAX1600_GPIO_0VPP) {
m->gpio[i] = devm_gpiod_get(dev, name, GPIOD_OUT_LOW);
} else {
m->gpio[i] = devm_gpiod_get_optional(dev, name,
GPIOD_OUT_LOW);
if (!m->gpio[i])
break;
}
if (IS_ERR(m->gpio[i]))
return PTR_ERR(m->gpio[i]);
}
*ptr = m;
return 0;
}
EXPORT_SYMBOL_GPL(max1600_init);
int max1600_configure(struct max1600 *m, unsigned int vcc, unsigned int vpp)
{
DECLARE_BITMAP(values, MAX1600_GPIO_MAX) = { 0, };
int n = MAX1600_GPIO_0VPP;
if (m->gpio[MAX1600_GPIO_0VPP]) {
if (vpp == 0) {
__assign_bit(MAX1600_GPIO_0VPP, values, 0);
__assign_bit(MAX1600_GPIO_1VPP, values, 0);
} else if (vpp == 120) {
__assign_bit(MAX1600_GPIO_0VPP, values, 0);
__assign_bit(MAX1600_GPIO_1VPP, values, 1);
} else if (vpp == vcc) {
__assign_bit(MAX1600_GPIO_0VPP, values, 1);
__assign_bit(MAX1600_GPIO_1VPP, values, 0);
} else {
dev_err(m->dev, "unrecognised Vpp %u.%uV\n",
vpp / 10, vpp % 10);
return -EINVAL;
}
n = MAX1600_GPIO_MAX;
} else if (vpp != vcc && vpp != 0) {
dev_err(m->dev, "no VPP control\n");
return -EINVAL;
}
if (vcc == 0) {
__assign_bit(MAX1600_GPIO_0VCC, values, 0);
__assign_bit(MAX1600_GPIO_1VCC, values, 0);
} else if (vcc == 33) { /* VY */
__assign_bit(MAX1600_GPIO_0VCC, values, 1);
__assign_bit(MAX1600_GPIO_1VCC, values, 0);
} else if (vcc == 50) { /* VX */
__assign_bit(MAX1600_GPIO_0VCC, values, 0);
__assign_bit(MAX1600_GPIO_1VCC, values, 1);
} else {
dev_err(m->dev, "unrecognised Vcc %u.%uV\n",
vcc / 10, vcc % 10);
return -EINVAL;
}
if (m->code == MAX1600_CODE_HIGH) {
/*
* Cirrus mode appears to be the same as Intel mode,
* except the VCC pins are inverted.
*/
__change_bit(MAX1600_GPIO_0VCC, values);
__change_bit(MAX1600_GPIO_1VCC, values);
}
return gpiod_set_array_value_cansleep(n, m->gpio, NULL, values);
}
EXPORT_SYMBOL_GPL(max1600_configure);
MODULE_LICENSE("GPL v2");
| linux-master | drivers/pcmcia/max1600.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* cardbus.c -- 16-bit PCMCIA core support
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* (C) 1999 David A. Hinds
*/
/*
* Cardbus handling has been re-written to be more of a PCI bridge thing,
* and the PCI code basically does all the resource handling.
*
* Linus, Jan 2000
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include "cs_internal.h"
static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
{
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
u8 irq_pin;
/*
* Since there is only one interrupt available to
* CardBus devices, all devices downstream of this
* device must be using this IRQ.
*/
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq_pin);
if (irq_pin) {
dev->irq = irq;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
}
/*
* Some controllers transfer very slowly with 0 CLS.
* Configure it. This may fail as CLS configuration
* is mandatory only for MWI.
*/
pci_set_cacheline_size(dev);
if (dev->subordinate)
cardbus_config_irq_and_cls(dev->subordinate, irq);
}
}
/**
* cb_alloc() - add CardBus device
* @s: the pcmcia_socket where the CardBus device is located
*
* cb_alloc() allocates the kernel data structures for a Cardbus device
* and handles the lowest level PCI device setup issues.
*/
int __ref cb_alloc(struct pcmcia_socket *s)
{
struct pci_bus *bus = s->cb_dev->subordinate;
struct pci_dev *dev;
unsigned int max, pass;
pci_lock_rescan_remove();
s->functions = pci_scan_slot(bus, PCI_DEVFN(0, 0));
pci_fixup_cardbus(bus);
max = bus->busn_res.start;
for (pass = 0; pass < 2; pass++)
for_each_pci_bridge(dev, bus)
max = pci_scan_bridge(bus, dev, max, pass);
/*
* Size all resources below the CardBus controller.
*/
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
cardbus_config_irq_and_cls(bus, s->pci_irq);
/* socket specific tune function */
if (s->tune_bridge)
s->tune_bridge(s, bus);
pci_bus_add_devices(bus);
pci_unlock_rescan_remove();
return 0;
}
/**
* cb_free() - remove CardBus device
* @s: the pcmcia_socket where the CardBus device was located
*
* cb_free() handles the lowest level PCI device cleanup.
*/
void cb_free(struct pcmcia_socket *s)
{
struct pci_dev *bridge, *dev, *tmp;
struct pci_bus *bus;
bridge = s->cb_dev;
if (!bridge)
return;
bus = bridge->subordinate;
if (!bus)
return;
pci_lock_rescan_remove();
list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list)
pci_stop_and_remove_bus_device(dev);
pci_unlock_rescan_remove();
}
| linux-master | drivers/pcmcia/cardbus.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* PCMCIA 16-bit resource management functions
*
* The initial developer of the original code is David A. Hinds
* <[email protected]>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*
* Copyright (C) 1999 David A. Hinds
* Copyright (C) 2004-2010 Dominik Brodowski
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/device.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <asm/irq.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"
/* Access speed for IO windows */
static int io_speed;
module_param(io_speed, int, 0444);
int pcmcia_validate_mem(struct pcmcia_socket *s)
{
if (s->resource_ops->validate_mem)
return s->resource_ops->validate_mem(s);
/* if there is no callback, we can assume that everything is OK */
return 0;
}
struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
int low, struct pcmcia_socket *s)
{
if (s->resource_ops->find_mem)
return s->resource_ops->find_mem(base, num, align, low, s);
return NULL;
}
/**
* release_io_space() - release IO ports allocated with alloc_io_space()
* @s: pcmcia socket
* @res: resource to release
*
*/
static void release_io_space(struct pcmcia_socket *s, struct resource *res)
{
resource_size_t num = resource_size(res);
int i;
dev_dbg(&s->dev, "release_io_space for %pR\n", res);
for (i = 0; i < MAX_IO_WIN; i++) {
if (!s->io[i].res)
continue;
if ((s->io[i].res->start <= res->start) &&
(s->io[i].res->end >= res->end)) {
s->io[i].InUse -= num;
if (res->parent)
release_resource(res);
res->start = res->end = 0;
res->flags = IORESOURCE_IO;
/* Free the window if no one else is using it */
if (s->io[i].InUse == 0) {
release_resource(s->io[i].res);
kfree(s->io[i].res);
s->io[i].res = NULL;
}
}
}
}
/**
* alloc_io_space() - allocate IO ports for use by a PCMCIA device
* @s: pcmcia socket
* @res: resource to allocate (begin: begin, end: size)
* @lines: number of IO lines decoded by the PCMCIA card
*
* Special stuff for managing IO windows, because they are scarce
*/
static int alloc_io_space(struct pcmcia_socket *s, struct resource *res,
unsigned int lines)
{
unsigned int align;
unsigned int base = res->start;
unsigned int num = res->end;
int ret;
res->flags |= IORESOURCE_IO;
dev_dbg(&s->dev, "alloc_io_space request for %pR, %d lines\n",
res, lines);
align = base ? (lines ? 1<<lines : 0) : 1;
if (align && (align < num)) {
if (base) {
dev_dbg(&s->dev, "odd IO request\n");
align = 0;
} else
while (align && (align < num))
align <<= 1;
}
if (base & ~(align-1)) {
dev_dbg(&s->dev, "odd IO request\n");
align = 0;
}
ret = s->resource_ops->find_io(s, res->flags, &base, num, align,
&res->parent);
if (ret) {
dev_dbg(&s->dev, "alloc_io_space request failed (%d)\n", ret);
return -EINVAL;
}
res->start = base;
res->end = res->start + num - 1;
if (res->parent) {
ret = request_resource(res->parent, res);
if (ret) {
dev_warn(&s->dev,
"request_resource %pR failed: %d\n", res, ret);
res->parent = NULL;
release_io_space(s, res);
}
}
dev_dbg(&s->dev, "alloc_io_space request result %d: %pR\n", ret, res);
return ret;
}
/*
* pcmcia_access_config() - read or write card configuration registers
*
* pcmcia_access_config() reads and writes configuration registers in
* attribute memory. Memory window 0 is reserved for this and the tuple
* reading services. Drivers must use pcmcia_read_config_byte() or
* pcmcia_write_config_byte().
*/
static int pcmcia_access_config(struct pcmcia_device *p_dev,
off_t where, u8 *val,
int (*accessf) (struct pcmcia_socket *s,
int attr, unsigned int addr,
unsigned int len, void *ptr))
{
struct pcmcia_socket *s;
config_t *c;
int addr;
int ret = 0;
s = p_dev->socket;
mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (!(c->state & CONFIG_LOCKED)) {
dev_dbg(&p_dev->dev, "Configuration isn't locked\n");
mutex_unlock(&s->ops_mutex);
return -EACCES;
}
addr = (p_dev->config_base + where) >> 1;
ret = accessf(s, 1, addr, 1, val);
mutex_unlock(&s->ops_mutex);
return ret;
}
/*
* pcmcia_read_config_byte() - read a byte from a card configuration register
*
* pcmcia_read_config_byte() reads a byte from a configuration register in
* attribute memory.
*/
int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val)
{
return pcmcia_access_config(p_dev, where, val, pcmcia_read_cis_mem);
}
EXPORT_SYMBOL(pcmcia_read_config_byte);
/*
* pcmcia_write_config_byte() - write a byte to a card configuration register
*
* pcmcia_write_config_byte() writes a byte to a configuration register in
* attribute memory.
*/
int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val)
{
return pcmcia_access_config(p_dev, where, &val, pcmcia_write_cis_mem);
}
EXPORT_SYMBOL(pcmcia_write_config_byte);
/**
* pcmcia_map_mem_page() - modify iomem window to point to a different offset
* @p_dev: pcmcia device
* @res: iomem resource already enabled by pcmcia_request_window()
* @offset: card_offset to map
*
* pcmcia_map_mem_page() modifies what can be read and written by accessing
* an iomem range previously enabled by pcmcia_request_window(), by setting
* the card_offset value to @offset.
*/
int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
unsigned int offset)
{
struct pcmcia_socket *s = p_dev->socket;
unsigned int w;
int ret;
w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
if (w >= MAX_WIN)
return -EINVAL;
mutex_lock(&s->ops_mutex);
s->win[w].card_start = offset;
ret = s->ops->set_mem_map(s, &s->win[w]);
if (ret)
dev_warn(&p_dev->dev, "failed to set_mem_map\n");
mutex_unlock(&s->ops_mutex);
return ret;
}
EXPORT_SYMBOL(pcmcia_map_mem_page);
/**
* pcmcia_fixup_iowidth() - reduce io width to 8bit
* @p_dev: pcmcia device
*
* pcmcia_fixup_iowidth() allows a PCMCIA device driver to reduce the
* IO width to 8bit after having called pcmcia_enable_device()
* previously.
*/
int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s = p_dev->socket;
pccard_io_map io_off = { 0, 0, 0, 0, 1 };
pccard_io_map io_on;
int i, ret = 0;
mutex_lock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "fixup iowidth to 8bit\n");
if (!(s->state & SOCKET_PRESENT) ||
!(p_dev->function_config->state & CONFIG_LOCKED)) {
dev_dbg(&p_dev->dev, "No card? Config not locked?\n");
ret = -EACCES;
goto unlock;
}
io_on.speed = io_speed;
for (i = 0; i < MAX_IO_WIN; i++) {
if (!s->io[i].res)
continue;
io_off.map = i;
io_on.map = i;
io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
io_on.start = s->io[i].res->start;
io_on.stop = s->io[i].res->end;
s->ops->set_io_map(s, &io_off);
msleep(40);
s->ops->set_io_map(s, &io_on);
}
unlock:
mutex_unlock(&s->ops_mutex);
return ret;
}
EXPORT_SYMBOL(pcmcia_fixup_iowidth);
/**
* pcmcia_fixup_vpp() - set Vpp to a new voltage level
* @p_dev: pcmcia device
* @new_vpp: new Vpp voltage
*
* pcmcia_fixup_vpp() allows a PCMCIA device driver to set Vpp to
* a new voltage level between calls to pcmcia_enable_device()
* and pcmcia_disable_device().
*/
int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp)
{
struct pcmcia_socket *s = p_dev->socket;
int ret = 0;
mutex_lock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "fixup Vpp to %d\n", new_vpp);
if (!(s->state & SOCKET_PRESENT) ||
!(p_dev->function_config->state & CONFIG_LOCKED)) {
dev_dbg(&p_dev->dev, "No card? Config not locked?\n");
ret = -EACCES;
goto unlock;
}
s->socket.Vpp = new_vpp;
if (s->ops->set_socket(s, &s->socket)) {
dev_warn(&p_dev->dev, "Unable to set VPP\n");
ret = -EIO;
goto unlock;
}
p_dev->vpp = new_vpp;
unlock:
mutex_unlock(&s->ops_mutex);
return ret;
}
EXPORT_SYMBOL(pcmcia_fixup_vpp);
/**
* pcmcia_release_configuration() - physically disable a PCMCIA device
* @p_dev: pcmcia device
*
* pcmcia_release_configuration() is the 1:1 counterpart to
* pcmcia_enable_device(): If a PCMCIA device is no longer used by any
* driver, the Vpp voltage is set to 0, IRQs will no longer be generated,
* and I/O ranges will be disabled. As pcmcia_release_io() and
* pcmcia_release_window() still need to be called, device drivers are
* expected to call pcmcia_disable_device() instead.
*/
int pcmcia_release_configuration(struct pcmcia_device *p_dev)
{
pccard_io_map io = { 0, 0, 0, 0, 1 };
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
int i;
mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (p_dev->_locked) {
p_dev->_locked = 0;
if (--(s->lock_count) == 0) {
s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
s->socket.Vpp = 0;
s->socket.io_irq = 0;
s->ops->set_socket(s, &s->socket);
}
}
if (c->state & CONFIG_LOCKED) {
c->state &= ~CONFIG_LOCKED;
if (c->state & CONFIG_IO_REQ)
for (i = 0; i < MAX_IO_WIN; i++) {
if (!s->io[i].res)
continue;
s->io[i].Config--;
if (s->io[i].Config != 0)
continue;
io.map = i;
s->ops->set_io_map(s, &io);
}
}
mutex_unlock(&s->ops_mutex);
return 0;
}
/**
* pcmcia_release_io() - release I/O allocated by a PCMCIA device
* @p_dev: pcmcia device
*
* pcmcia_release_io() releases the I/O ranges allocated by a PCMCIA
* device. This may be invoked some time after a card ejection has
* already dumped the actual socket configuration, so if the client is
* "stale", we don't bother checking the port ranges against the
* current socket values.
*/
static void pcmcia_release_io(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
mutex_lock(&s->ops_mutex);
if (!p_dev->_io)
goto out;
c = p_dev->function_config;
release_io_space(s, &c->io[0]);
if (c->io[1].end)
release_io_space(s, &c->io[1]);
p_dev->_io = 0;
c->state &= ~CONFIG_IO_REQ;
out:
mutex_unlock(&s->ops_mutex);
} /* pcmcia_release_io */
/**
* pcmcia_release_window() - release reserved iomem for PCMCIA devices
* @p_dev: pcmcia device
* @res: iomem resource to release
*
* pcmcia_release_window() releases &struct resource *res which was
* previously reserved by calling pcmcia_request_window().
*/
int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res)
{
struct pcmcia_socket *s = p_dev->socket;
pccard_mem_map *win;
unsigned int w;
dev_dbg(&p_dev->dev, "releasing window %pR\n", res);
w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
if (w >= MAX_WIN)
return -EINVAL;
mutex_lock(&s->ops_mutex);
win = &s->win[w];
if (!(p_dev->_win & CLIENT_WIN_REQ(w))) {
dev_dbg(&p_dev->dev, "not releasing unknown window\n");
mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
/* Shut down memory window */
win->flags &= ~MAP_ACTIVE;
s->ops->set_mem_map(s, win);
s->state &= ~SOCKET_WIN_REQ(w);
/* Release system memory */
if (win->res) {
release_resource(res);
release_resource(win->res);
kfree(win->res);
win->res = NULL;
}
res->start = res->end = 0;
res->flags = IORESOURCE_MEM;
p_dev->_win &= ~CLIENT_WIN_REQ(w);
mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_release_window */
EXPORT_SYMBOL(pcmcia_release_window);
/**
* pcmcia_enable_device() - set up and activate a PCMCIA device
* @p_dev: the associated PCMCIA device
*
* pcmcia_enable_device() physically enables a PCMCIA device. It parses
* the flags passed to in @flags and stored in @p_dev->flags and sets up
* the Vpp voltage, enables the speaker line, I/O ports and store proper
* values to configuration registers.
*/
int pcmcia_enable_device(struct pcmcia_device *p_dev)
{
int i;
unsigned int base;
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
pccard_io_map iomap;
unsigned char status = 0;
unsigned char ext_status = 0;
unsigned char option = 0;
unsigned int flags = p_dev->config_flags;
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
mutex_lock(&s->ops_mutex);
c = p_dev->function_config;
if (c->state & CONFIG_LOCKED) {
mutex_unlock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "Configuration is locked\n");
return -EACCES;
}
/* Do power control. We don't allow changes in Vcc. */
s->socket.Vpp = p_dev->vpp;
if (s->ops->set_socket(s, &s->socket)) {
mutex_unlock(&s->ops_mutex);
dev_warn(&p_dev->dev, "Unable to set socket state\n");
return -EINVAL;
}
/* Pick memory or I/O card, DMA mode, interrupt */
if (p_dev->_io || flags & CONF_ENABLE_IRQ)
flags |= CONF_ENABLE_IOCARD;
if (flags & CONF_ENABLE_IOCARD)
s->socket.flags |= SS_IOCARD;
if (flags & CONF_ENABLE_ZVCARD)
s->socket.flags |= SS_ZVCARD | SS_IOCARD;
if (flags & CONF_ENABLE_SPKR) {
s->socket.flags |= SS_SPKR_ENA;
status = CCSR_AUDIO_ENA;
if (!(p_dev->config_regs & PRESENT_STATUS))
dev_warn(&p_dev->dev, "speaker requested, but "
"PRESENT_STATUS not set!\n");
}
if (flags & CONF_ENABLE_IRQ)
s->socket.io_irq = s->pcmcia_irq;
else
s->socket.io_irq = 0;
if (flags & CONF_ENABLE_ESR) {
p_dev->config_regs |= PRESENT_EXT_STATUS;
ext_status = ESR_REQ_ATTN_ENA;
}
s->ops->set_socket(s, &s->socket);
s->lock_count++;
dev_dbg(&p_dev->dev,
"enable_device: V %d, flags %x, base %x, regs %x, idx %x\n",
p_dev->vpp, flags, p_dev->config_base, p_dev->config_regs,
p_dev->config_index);
/* Set up CIS configuration registers */
base = p_dev->config_base;
if (p_dev->config_regs & PRESENT_COPY) {
u16 tmp = 0;
dev_dbg(&p_dev->dev, "clearing CISREG_SCR\n");
pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &tmp);
}
if (p_dev->config_regs & PRESENT_PIN_REPLACE) {
u16 tmp = 0;
dev_dbg(&p_dev->dev, "clearing CISREG_PRR\n");
pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &tmp);
}
if (p_dev->config_regs & PRESENT_OPTION) {
if (s->functions == 1) {
option = p_dev->config_index & COR_CONFIG_MASK;
} else {
option = p_dev->config_index & COR_MFC_CONFIG_MASK;
option |= COR_FUNC_ENA|COR_IREQ_ENA;
if (p_dev->config_regs & PRESENT_IOBASE_0)
option |= COR_ADDR_DECODE;
}
if ((flags & CONF_ENABLE_IRQ) &&
!(flags & CONF_ENABLE_PULSE_IRQ))
option |= COR_LEVEL_REQ;
pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &option);
msleep(40);
}
if (p_dev->config_regs & PRESENT_STATUS)
pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &status);
if (p_dev->config_regs & PRESENT_EXT_STATUS)
pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1,
&ext_status);
if (p_dev->config_regs & PRESENT_IOBASE_0) {
u8 b = c->io[0].start & 0xff;
pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
b = (c->io[0].start >> 8) & 0xff;
pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
}
if (p_dev->config_regs & PRESENT_IOSIZE) {
u8 b = resource_size(&c->io[0]) + resource_size(&c->io[1]) - 1;
pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
}
/* Configure I/O windows */
if (c->state & CONFIG_IO_REQ) {
iomap.speed = io_speed;
for (i = 0; i < MAX_IO_WIN; i++)
if (s->io[i].res) {
iomap.map = i;
iomap.flags = MAP_ACTIVE;
switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
case IO_DATA_PATH_WIDTH_16:
iomap.flags |= MAP_16BIT; break;
case IO_DATA_PATH_WIDTH_AUTO:
iomap.flags |= MAP_AUTOSZ; break;
default:
break;
}
iomap.start = s->io[i].res->start;
iomap.stop = s->io[i].res->end;
s->ops->set_io_map(s, &iomap);
s->io[i].Config++;
}
}
c->state |= CONFIG_LOCKED;
p_dev->_locked = 1;
mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_enable_device */
EXPORT_SYMBOL(pcmcia_enable_device);
/**
* pcmcia_request_io() - attempt to reserve port ranges for PCMCIA devices
* @p_dev: the associated PCMCIA device
*
* pcmcia_request_io() attempts to reserve the IO port ranges specified in
* &struct pcmcia_device @p_dev->resource[0] and @p_dev->resource[1]. The
* "start" value is the requested start of the IO port resource; "end"
* reflects the number of ports requested. The number of IO lines requested
* is specified in &struct pcmcia_device @p_dev->io_lines.
*/
int pcmcia_request_io(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s = p_dev->socket;
config_t *c = p_dev->function_config;
int ret = -EINVAL;
mutex_lock(&s->ops_mutex);
dev_dbg(&p_dev->dev, "pcmcia_request_io: %pR , %pR",
&c->io[0], &c->io[1]);
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&p_dev->dev, "pcmcia_request_io: No card present\n");
goto out;
}
if (c->state & CONFIG_LOCKED) {
dev_dbg(&p_dev->dev, "Configuration is locked\n");
goto out;
}
if (c->state & CONFIG_IO_REQ) {
dev_dbg(&p_dev->dev, "IO already configured\n");
goto out;
}
ret = alloc_io_space(s, &c->io[0], p_dev->io_lines);
if (ret)
goto out;
if (c->io[1].end) {
ret = alloc_io_space(s, &c->io[1], p_dev->io_lines);
if (ret) {
struct resource tmp = c->io[0];
/* release the previously allocated resource */
release_io_space(s, &c->io[0]);
/* but preserve the settings, for they worked... */
c->io[0].end = resource_size(&tmp);
c->io[0].start = tmp.start;
c->io[0].flags = tmp.flags;
goto out;
}
} else
c->io[1].start = 0;
c->state |= CONFIG_IO_REQ;
p_dev->_io = 1;
dev_dbg(&p_dev->dev, "pcmcia_request_io succeeded: %pR , %pR",
&c->io[0], &c->io[1]);
out:
mutex_unlock(&s->ops_mutex);
return ret;
} /* pcmcia_request_io */
EXPORT_SYMBOL(pcmcia_request_io);
/**
* pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device
* @p_dev: the associated PCMCIA device
* @handler: IRQ handler to register
*
* pcmcia_request_irq() is a wrapper around request_irq() which allows
* the PCMCIA core to clean up the registration in pcmcia_disable_device().
* Drivers are free to use request_irq() directly, but then they need to
* call free_irq() themselfves, too. Also, only %IRQF_SHARED capable IRQ
* handlers are allowed.
*/
int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
irq_handler_t handler)
{
int ret;
if (!p_dev->irq)
return -EINVAL;
ret = request_irq(p_dev->irq, handler, IRQF_SHARED,
p_dev->devname, p_dev->priv);
if (!ret)
p_dev->_irq = 1;
return ret;
}
EXPORT_SYMBOL(pcmcia_request_irq);
#ifdef CONFIG_PCMCIA_PROBE
/* mask of IRQs already reserved by other cards, we should avoid using them */
static u8 pcmcia_used_irq[32];
static irqreturn_t test_action(int cpl, void *dev_id)
{
return IRQ_NONE;
}
/**
* pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used
* @p_dev: the associated PCMCIA device
* @type: IRQ type (flags)
*
* locking note: must be called with ops_mutex locked.
*/
static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
{
struct pcmcia_socket *s = p_dev->socket;
unsigned int try, irq;
u32 mask = s->irq_mask;
int ret = -ENODEV;
for (try = 0; try < 64; try++) {
irq = try % 32;
if (irq > NR_IRQS)
continue;
/* marked as available by driver, not blocked by userspace? */
if (!((mask >> irq) & 1))
continue;
/* avoid an IRQ which is already used by another PCMCIA card */
if ((try < 32) && pcmcia_used_irq[irq])
continue;
/* register the correct driver, if possible, to check whether
* registering a dummy handle works, i.e. if the IRQ isn't
* marked as used by the kernel resource management core */
ret = request_irq(irq, test_action, type, p_dev->devname,
p_dev);
if (!ret) {
free_irq(irq, p_dev);
p_dev->irq = s->pcmcia_irq = irq;
pcmcia_used_irq[irq]++;
break;
}
}
return ret;
}
void pcmcia_cleanup_irq(struct pcmcia_socket *s)
{
pcmcia_used_irq[s->pcmcia_irq]--;
s->pcmcia_irq = 0;
}
#else /* CONFIG_PCMCIA_PROBE */
static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
{
return -EINVAL;
}
void pcmcia_cleanup_irq(struct pcmcia_socket *s)
{
s->pcmcia_irq = 0;
return;
}
#endif /* CONFIG_PCMCIA_PROBE */
/**
* pcmcia_setup_irq() - determine IRQ to be used for device
* @p_dev: the associated PCMCIA device
*
* locking note: must be called with ops_mutex locked.
*/
int pcmcia_setup_irq(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s = p_dev->socket;
if (p_dev->irq)
return 0;
/* already assigned? */
if (s->pcmcia_irq) {
p_dev->irq = s->pcmcia_irq;
return 0;
}
/* prefer an exclusive ISA irq */
if (!pcmcia_setup_isa_irq(p_dev, 0))
return 0;
/* but accept a shared ISA irq */
if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED))
return 0;
/* but use the PCI irq otherwise */
if (s->pci_irq) {
p_dev->irq = s->pcmcia_irq = s->pci_irq;
return 0;
}
return -EINVAL;
}
/**
* pcmcia_request_window() - attempt to reserve iomem for PCMCIA devices
* @p_dev: the associated PCMCIA device
* @res: &struct resource pointing to p_dev->resource[2..5]
* @speed: access speed
*
* pcmcia_request_window() attepts to reserve an iomem ranges specified in
* &struct resource @res pointing to one of the entries in
* &struct pcmcia_device @p_dev->resource[2..5]. The "start" value is the
* requested start of the IO mem resource; "end" reflects the size
* requested.
*/
int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
unsigned int speed)
{
struct pcmcia_socket *s = p_dev->socket;
pccard_mem_map *win;
u_long align;
int w;
dev_dbg(&p_dev->dev, "request_window %pR %d\n", res, speed);
if (!(s->state & SOCKET_PRESENT)) {
dev_dbg(&p_dev->dev, "No card present\n");
return -ENODEV;
}
/* Window size defaults to smallest available */
if (res->end == 0)
res->end = s->map_size;
align = (s->features & SS_CAP_MEM_ALIGN) ? res->end : s->map_size;
if (res->end & (s->map_size-1)) {
dev_dbg(&p_dev->dev, "invalid map size\n");
return -EINVAL;
}
if ((res->start && (s->features & SS_CAP_STATIC_MAP)) ||
(res->start & (align-1))) {
dev_dbg(&p_dev->dev, "invalid base address\n");
return -EINVAL;
}
if (res->start)
align = 0;
/* Allocate system memory window */
mutex_lock(&s->ops_mutex);
for (w = 0; w < MAX_WIN; w++)
if (!(s->state & SOCKET_WIN_REQ(w)))
break;
if (w == MAX_WIN) {
dev_dbg(&p_dev->dev, "all windows are used already\n");
mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
win = &s->win[w];
if (!(s->features & SS_CAP_STATIC_MAP)) {
win->res = pcmcia_find_mem_region(res->start, res->end, align,
0, s);
if (!win->res) {
dev_dbg(&p_dev->dev, "allocating mem region failed\n");
mutex_unlock(&s->ops_mutex);
return -EINVAL;
}
}
p_dev->_win |= CLIENT_WIN_REQ(w);
/* Configure the socket controller */
win->map = w+1;
win->flags = res->flags & WIN_FLAGS_MAP;
win->speed = speed;
win->card_start = 0;
if (s->ops->set_mem_map(s, win) != 0) {
dev_dbg(&p_dev->dev, "failed to set memory mapping\n");
mutex_unlock(&s->ops_mutex);
return -EIO;
}
s->state |= SOCKET_WIN_REQ(w);
/* Return window handle */
if (s->features & SS_CAP_STATIC_MAP)
res->start = win->static_start;
else
res->start = win->res->start;
/* convert to new-style resources */
res->end += res->start - 1;
res->flags &= ~WIN_FLAGS_REQ;
res->flags |= (win->map << 2) | IORESOURCE_MEM;
res->parent = win->res;
if (win->res)
request_resource(&iomem_resource, res);
dev_dbg(&p_dev->dev, "request_window results in %pR\n", res);
mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_request_window */
EXPORT_SYMBOL(pcmcia_request_window);
/**
* pcmcia_disable_device() - disable and clean up a PCMCIA device
* @p_dev: the associated PCMCIA device
*
* pcmcia_disable_device() is the driver-callable counterpart to
* pcmcia_enable_device(): If a PCMCIA device is no longer used,
* drivers are expected to clean up and disable the device by calling
* this function. Any I/O ranges (iomem and ioports) will be released,
* the Vpp voltage will be set to 0, and IRQs will no longer be
* generated -- at least if there is no other card function (of
* multifunction devices) being used.
*/
void pcmcia_disable_device(struct pcmcia_device *p_dev)
{
int i;
dev_dbg(&p_dev->dev, "disabling device\n");
for (i = 0; i < MAX_WIN; i++) {
struct resource *res = p_dev->resource[MAX_IO_WIN + i];
if (res->flags & WIN_FLAGS_REQ)
pcmcia_release_window(p_dev, res);
}
pcmcia_release_configuration(p_dev);
pcmcia_release_io(p_dev);
if (p_dev->_irq) {
free_irq(p_dev->irq, p_dev->priv);
p_dev->_irq = 0;
}
}
EXPORT_SYMBOL(pcmcia_disable_device);
| linux-master | drivers/pcmcia/pcmcia_resource.c |
// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pcmcia/sa1100_h3600.c
*
* PCMCIA implementation routines for H3600
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <mach/h3xxx.h>
#include "sa1100_generic.h"
static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int err;
skt->stat[SOC_STAT_CD].name = skt->nr ? "pcmcia1-detect" : "pcmcia0-detect";
skt->stat[SOC_STAT_RDY].name = skt->nr ? "pcmcia1-ready" : "pcmcia0-ready";
err = soc_pcmcia_request_gpiods(skt);
if (err)
return err;
switch (skt->nr) {
case 0:
err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON");
if (err)
goto err01;
err = gpio_direction_output(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
if (err)
goto err03;
err = gpio_request(H3XXX_EGPIO_OPT_ON, "OPT ON");
if (err)
goto err03;
err = gpio_direction_output(H3XXX_EGPIO_OPT_ON, 0);
if (err)
goto err04;
err = gpio_request(H3XXX_EGPIO_OPT_RESET, "OPT RESET");
if (err)
goto err04;
err = gpio_direction_output(H3XXX_EGPIO_OPT_RESET, 0);
if (err)
goto err05;
err = gpio_request(H3XXX_EGPIO_CARD_RESET, "PCMCIA CARD RESET");
if (err)
goto err05;
err = gpio_direction_output(H3XXX_EGPIO_CARD_RESET, 0);
if (err)
goto err06;
break;
case 1:
break;
}
return 0;
err06: gpio_free(H3XXX_EGPIO_CARD_RESET);
err05: gpio_free(H3XXX_EGPIO_OPT_RESET);
err04: gpio_free(H3XXX_EGPIO_OPT_ON);
err03: gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
err01: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
return err;
}
static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
switch (skt->nr) {
case 0:
/* Disable CF bus: */
gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
gpio_set_value(H3XXX_EGPIO_OPT_ON, 0);
gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1);
gpio_free(H3XXX_EGPIO_CARD_RESET);
gpio_free(H3XXX_EGPIO_OPT_RESET);
gpio_free(H3XXX_EGPIO_OPT_ON);
gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
break;
case 1:
break;
}
}
static void
h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
state->bvd1 = 0;
state->bvd2 = 0;
state->vs_3v = 0;
state->vs_Xv = 0;
}
static int
h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) {
printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",
state->Vcc / 10, state->Vcc % 10);
return -1;
}
gpio_set_value(H3XXX_EGPIO_CARD_RESET, !!(state->flags & SS_RESET));
/* Silently ignore Vpp, output enable, speaker enable. */
return 0;
}
static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
{
/* Enable CF bus: */
gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 1);
gpio_set_value(H3XXX_EGPIO_OPT_ON, 1);
gpio_set_value(H3XXX_EGPIO_OPT_RESET, 0);
msleep(10);
}
static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
{
/*
* FIXME: This doesn't fit well. We don't have the mechanism in
* the generic PCMCIA layer to deal with the idea of two sockets
* on one bus. We rely on the cs.c behaviour shutting down
* socket 0 then socket 1.
*/
if (skt->nr == 1) {
gpio_set_value(H3XXX_EGPIO_OPT_ON, 0);
gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
/* hmm, does this suck power? */
gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1);
}
}
struct pcmcia_low_level h3600_pcmcia_ops = {
.owner = THIS_MODULE,
.hw_init = h3600_pcmcia_hw_init,
.hw_shutdown = h3600_pcmcia_hw_shutdown,
.socket_state = h3600_pcmcia_socket_state,
.configure_socket = h3600_pcmcia_configure_socket,
.socket_init = h3600_pcmcia_socket_init,
.socket_suspend = h3600_pcmcia_socket_suspend,
};
int pcmcia_h3600_init(struct device *dev)
{
int ret = -ENODEV;
if (machine_is_h3600())
ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2);
return ret;
}
| linux-master | drivers/pcmcia/sa1100_h3600.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/pcmcia/sa1111_generic.c
*
* We implement the generic parts of a SA1111 PCMCIA driver. This
* basically means we handle everything except controlling the
* power. Power is machine specific...
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <pcmcia/ss.h>
#include <asm/hardware/sa1111.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include "sa1111_generic.h"
/*
* These are offsets from the above base.
*/
#define PCCR 0x0000
#define PCSSR 0x0004
#define PCSR 0x0008
#define PCSR_S0_READY (1<<0)
#define PCSR_S1_READY (1<<1)
#define PCSR_S0_DETECT (1<<2)
#define PCSR_S1_DETECT (1<<3)
#define PCSR_S0_VS1 (1<<4)
#define PCSR_S0_VS2 (1<<5)
#define PCSR_S1_VS1 (1<<6)
#define PCSR_S1_VS2 (1<<7)
#define PCSR_S0_WP (1<<8)
#define PCSR_S1_WP (1<<9)
#define PCSR_S0_BVD1 (1<<10)
#define PCSR_S0_BVD2 (1<<11)
#define PCSR_S1_BVD1 (1<<12)
#define PCSR_S1_BVD2 (1<<13)
#define PCCR_S0_RST (1<<0)
#define PCCR_S1_RST (1<<1)
#define PCCR_S0_FLT (1<<2)
#define PCCR_S1_FLT (1<<3)
#define PCCR_S0_PWAITEN (1<<4)
#define PCCR_S1_PWAITEN (1<<5)
#define PCCR_S0_PSE (1<<6)
#define PCCR_S1_PSE (1<<7)
#define PCSSR_S0_SLEEP (1<<0)
#define PCSSR_S1_SLEEP (1<<1)
#define IDX_IRQ_S0_READY_NINT (0)
#define IDX_IRQ_S0_CD_VALID (1)
#define IDX_IRQ_S0_BVD1_STSCHG (2)
#define IDX_IRQ_S1_READY_NINT (3)
#define IDX_IRQ_S1_CD_VALID (4)
#define IDX_IRQ_S1_BVD1_STSCHG (5)
#define NUM_IRQS (6)
void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
u32 status = readl_relaxed(s->dev->mapbase + PCSR);
switch (skt->nr) {
case 0:
state->detect = status & PCSR_S0_DETECT ? 0 : 1;
state->ready = status & PCSR_S0_READY ? 1 : 0;
state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S0_WP ? 1 : 0;
state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1;
break;
case 1:
state->detect = status & PCSR_S1_DETECT ? 0 : 1;
state->ready = status & PCSR_S1_READY ? 1 : 0;
state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0;
state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0;
state->wrprot = status & PCSR_S1_WP ? 1 : 0;
state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1;
state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1;
break;
}
}
int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
{
struct sa1111_pcmcia_socket *s = to_skt(skt);
u32 pccr_skt_mask, pccr_set_mask, val;
unsigned long flags;
switch (skt->nr) {
case 0:
pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
break;
case 1:
pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
break;
default:
return -1;
}
pccr_set_mask = 0;
if (state->Vcc != 0)
pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
if (state->Vcc == 50)
pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
if (state->flags & SS_RESET)
pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
if (state->flags & SS_OUTPUT_ENA)
pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
local_irq_save(flags);
val = readl_relaxed(s->dev->mapbase + PCCR);
val &= ~pccr_skt_mask;
val |= pccr_set_mask & pccr_skt_mask;
writel_relaxed(val, s->dev->mapbase + PCCR);
local_irq_restore(flags);
return 0;
}
int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
int (*add)(struct soc_pcmcia_socket *))
{
struct sa1111_pcmcia_socket *s;
struct clk *clk;
int i, ret = 0, irqs[NUM_IRQS];
clk = devm_clk_get(&dev->dev, NULL);
if (IS_ERR(clk))
return PTR_ERR(clk);
for (i = 0; i < NUM_IRQS; i++) {
irqs[i] = sa1111_get_irq(dev, i);
if (irqs[i] <= 0)
return irqs[i] ? : -ENXIO;
}
ops->socket_state = sa1111_pcmcia_socket_state;
for (i = 0; i < ops->nr; i++) {
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
return -ENOMEM;
s->soc.nr = ops->first + i;
s->soc.clk = clk;
soc_pcmcia_init_one(&s->soc, ops, &dev->dev);
s->dev = dev;
if (s->soc.nr) {
s->soc.socket.pci_irq = irqs[IDX_IRQ_S1_READY_NINT];
s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S1_CD_VALID];
s->soc.stat[SOC_STAT_CD].name = "SA1111 CF card detect";
s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S1_BVD1_STSCHG];
s->soc.stat[SOC_STAT_BVD1].name = "SA1111 CF BVD1";
} else {
s->soc.socket.pci_irq = irqs[IDX_IRQ_S0_READY_NINT];
s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S0_CD_VALID];
s->soc.stat[SOC_STAT_CD].name = "SA1111 PCMCIA card detect";
s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S0_BVD1_STSCHG];
s->soc.stat[SOC_STAT_BVD1].name = "SA1111 PCMCIA BVD1";
}
ret = add(&s->soc);
if (ret == 0) {
s->next = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, s);
} else
kfree(s);
}
return ret;
}
static int pcmcia_probe(struct sa1111_dev *dev)
{
void __iomem *base;
int ret;
ret = sa1111_enable_device(dev);
if (ret)
return ret;
dev_set_drvdata(&dev->dev, NULL);
if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
sa1111_disable_device(dev);
return -EBUSY;
}
base = dev->mapbase;
/*
* Initialise the suspend state.
*/
writel_relaxed(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
writel_relaxed(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
ret = -ENODEV;
#ifdef CONFIG_SA1100_JORNADA720
if (machine_is_jornada720())
ret = pcmcia_jornada720_init(dev);
#endif
#ifdef CONFIG_ASSABET_NEPONSET
if (machine_is_assabet())
ret = pcmcia_neponset_init(dev);
#endif
if (ret) {
release_mem_region(dev->res.start, 512);
sa1111_disable_device(dev);
}
return ret;
}
static void pcmcia_remove(struct sa1111_dev *dev)
{
struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
dev_set_drvdata(&dev->dev, NULL);
for (; s; s = next) {
next = s->next;
soc_pcmcia_remove_one(&s->soc);
kfree(s);
}
release_mem_region(dev->res.start, 512);
sa1111_disable_device(dev);
}
static struct sa1111_driver pcmcia_driver = {
.drv = {
.name = "sa1111-pcmcia",
},
.devid = SA1111_DEVID_PCMCIA,
.probe = pcmcia_probe,
.remove = pcmcia_remove,
};
static int __init sa1111_drv_pcmcia_init(void)
{
return sa1111_driver_register(&pcmcia_driver);
}
static void __exit sa1111_drv_pcmcia_exit(void)
{
sa1111_driver_unregister(&pcmcia_driver);
}
fs_initcall(sa1111_drv_pcmcia_init);
module_exit(sa1111_drv_pcmcia_exit);
MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/pcmcia/sa1111_generic.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* socket_sysfs.c -- most of socket-related sysfs output
*
* (C) 2003 - 2004 Dominik Brodowski
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/device.h>
#include <linux/mutex.h>
#include <asm/irq.h>
#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "cs_internal.h"
#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (s->state & SOCKET_CARDBUS)
return sysfs_emit(buf, "32-bit\n");
return sysfs_emit(buf, "16-bit\n");
}
static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (s->socket.Vcc)
return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10,
s->socket.Vcc % 10);
return sysfs_emit(buf, "X.XV\n");
}
static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
return sysfs_emit(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
}
static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
}
static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
return count;
}
static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
static ssize_t pccard_show_card_pm_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
return sysfs_emit(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
}
static ssize_t pccard_store_card_pm_state(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = to_socket(dev);
ssize_t ret = count;
if (!count)
return -EINVAL;
if (!strncmp(buf, "off", 3))
pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
else {
if (!strncmp(buf, "on", 2))
pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
else
ret = -EINVAL;
}
return ret;
}
static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
static ssize_t pccard_store_eject(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
return count;
}
static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
static ssize_t pccard_show_irq_mask(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
return sysfs_emit(buf, "0x%04x\n", s->irq_mask);
}
static ssize_t pccard_store_irq_mask(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
ssize_t ret;
struct pcmcia_socket *s = to_socket(dev);
u32 mask;
if (!count)
return -EINVAL;
ret = sscanf(buf, "0x%x\n", &mask);
if (ret == 1) {
mutex_lock(&s->ops_mutex);
s->irq_mask &= mask;
mutex_unlock(&s->ops_mutex);
ret = 0;
}
return ret ? ret : count;
}
static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
static ssize_t pccard_show_resource(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
return sysfs_emit(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
}
static ssize_t pccard_store_resource(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
mutex_lock(&s->ops_mutex);
if (!s->resource_setup_done)
s->resource_setup_done = 1;
mutex_unlock(&s->ops_mutex);
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
return count;
}
static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
static struct attribute *pccard_socket_attributes[] = {
&dev_attr_card_type.attr,
&dev_attr_card_voltage.attr,
&dev_attr_card_vpp.attr,
&dev_attr_card_vcc.attr,
&dev_attr_card_insert.attr,
&dev_attr_card_pm_state.attr,
&dev_attr_card_eject.attr,
&dev_attr_card_irq_mask.attr,
&dev_attr_available_resources_setup_done.attr,
NULL,
};
static const struct attribute_group socket_attrs = {
.attrs = pccard_socket_attributes,
};
int pccard_sysfs_add_socket(struct device *dev)
{
return sysfs_create_group(&dev->kobj, &socket_attrs);
}
void pccard_sysfs_remove_socket(struct device *dev)
{
sysfs_remove_group(&dev->kobj, &socket_attrs);
}
| linux-master | drivers/pcmcia/socket_sysfs.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for EVision devices
* For now, only ignore bogus consumer reports
* sent after the keyboard has been configured
*
* Copyright (c) 2022 Philippe Valembois
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static int evision_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;
/* Ignore key down event */
if ((usage->hid & HID_USAGE) >> 8 == 0x05)
return -1;
/* Ignore key up event */
if ((usage->hid & HID_USAGE) >> 8 == 0x06)
return -1;
switch (usage->hid & HID_USAGE) {
/* Ignore configuration saved event */
case 0x0401: return -1;
/* Ignore reset event */
case 0x0402: return -1;
}
return 0;
}
static const struct hid_device_id evision_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_EVISION, USB_DEVICE_ID_EVISION_ICL01) },
{ }
};
MODULE_DEVICE_TABLE(hid, evision_devices);
static struct hid_driver evision_driver = {
.name = "evision",
.id_table = evision_devices,
.input_mapping = evision_input_mapping,
};
module_hid_driver(evision_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-evision.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Semitek keyboards
*
* Copyright (c) 2021 Benjamin Moody
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static __u8 *semitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
/* In the report descriptor for interface 2, fix the incorrect
description of report ID 0x04 (the report contains a
bitmask, not an array of keycodes.) */
if (*rsize == 0xcb && rdesc[0x83] == 0x81 && rdesc[0x84] == 0x00) {
hid_info(hdev, "fixing up Semitek report descriptor\n");
rdesc[0x84] = 0x02;
}
return rdesc;
}
static const struct hid_device_id semitek_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SEMITEK, USB_DEVICE_ID_SEMITEK_KEYBOARD) },
{ }
};
MODULE_DEVICE_TABLE(hid, semitek_devices);
static struct hid_driver semitek_driver = {
.name = "semitek",
.id_table = semitek_devices,
.report_fixup = semitek_report_fixup,
};
module_hid_driver(semitek_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-semitek.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Debug support for HID Nintendo Wii / Wii U peripherals
* Copyright (c) 2011-2013 David Herrmann <[email protected]>
*/
/*
*/
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include "hid-wiimote.h"
struct wiimote_debug {
struct wiimote_data *wdata;
struct dentry *eeprom;
struct dentry *drm;
};
static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
loff_t *off)
{
struct wiimote_debug *dbg = f->private_data;
struct wiimote_data *wdata = dbg->wdata;
unsigned long flags;
ssize_t ret;
char buf[16];
__u16 size = 0;
if (s == 0)
return -EINVAL;
if (*off > 0xffffff)
return 0;
if (s > 16)
s = 16;
ret = wiimote_cmd_acquire(wdata);
if (ret)
return ret;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.cmd_read_size = s;
wdata->state.cmd_read_buf = buf;
wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, *off & 0xffff);
wiiproto_req_reeprom(wdata, *off, s);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (!ret)
size = wdata->state.cmd_read_size;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.cmd_read_buf = NULL;
spin_unlock_irqrestore(&wdata->state.lock, flags);
wiimote_cmd_release(wdata);
if (ret)
return ret;
else if (size == 0)
return -EIO;
if (copy_to_user(u, buf, size))
return -EFAULT;
*off += size;
ret = size;
return ret;
}
static const struct file_operations wiidebug_eeprom_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = wiidebug_eeprom_read,
.llseek = generic_file_llseek,
};
static const char *wiidebug_drmmap[] = {
[WIIPROTO_REQ_NULL] = "NULL",
[WIIPROTO_REQ_DRM_K] = "K",
[WIIPROTO_REQ_DRM_KA] = "KA",
[WIIPROTO_REQ_DRM_KE] = "KE",
[WIIPROTO_REQ_DRM_KAI] = "KAI",
[WIIPROTO_REQ_DRM_KEE] = "KEE",
[WIIPROTO_REQ_DRM_KAE] = "KAE",
[WIIPROTO_REQ_DRM_KIE] = "KIE",
[WIIPROTO_REQ_DRM_KAIE] = "KAIE",
[WIIPROTO_REQ_DRM_E] = "E",
[WIIPROTO_REQ_DRM_SKAI1] = "SKAI1",
[WIIPROTO_REQ_DRM_SKAI2] = "SKAI2",
[WIIPROTO_REQ_MAX] = NULL
};
static int wiidebug_drm_show(struct seq_file *f, void *p)
{
struct wiimote_debug *dbg = f->private;
const char *str = NULL;
unsigned long flags;
__u8 drm;
spin_lock_irqsave(&dbg->wdata->state.lock, flags);
drm = dbg->wdata->state.drm;
spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);
if (drm < WIIPROTO_REQ_MAX)
str = wiidebug_drmmap[drm];
if (!str)
str = "unknown";
seq_printf(f, "%s\n", str);
return 0;
}
static int wiidebug_drm_open(struct inode *i, struct file *f)
{
return single_open(f, wiidebug_drm_show, i->i_private);
}
static ssize_t wiidebug_drm_write(struct file *f, const char __user *u,
size_t s, loff_t *off)
{
struct seq_file *sf = f->private_data;
struct wiimote_debug *dbg = sf->private;
unsigned long flags;
char buf[16];
ssize_t len;
int i;
if (s == 0)
return -EINVAL;
len = min((size_t) 15, s);
if (copy_from_user(buf, u, len))
return -EFAULT;
buf[len] = 0;
for (i = 0; i < WIIPROTO_REQ_MAX; ++i) {
if (!wiidebug_drmmap[i])
continue;
if (!strcasecmp(buf, wiidebug_drmmap[i]))
break;
}
if (i == WIIPROTO_REQ_MAX)
i = simple_strtoul(buf, NULL, 16);
spin_lock_irqsave(&dbg->wdata->state.lock, flags);
dbg->wdata->state.flags &= ~WIIPROTO_FLAG_DRM_LOCKED;
wiiproto_req_drm(dbg->wdata, (__u8) i);
if (i != WIIPROTO_REQ_NULL)
dbg->wdata->state.flags |= WIIPROTO_FLAG_DRM_LOCKED;
spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);
return len;
}
static const struct file_operations wiidebug_drm_fops = {
.owner = THIS_MODULE,
.open = wiidebug_drm_open,
.read = seq_read,
.llseek = seq_lseek,
.write = wiidebug_drm_write,
.release = single_release,
};
int wiidebug_init(struct wiimote_data *wdata)
{
struct wiimote_debug *dbg;
unsigned long flags;
dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
if (!dbg)
return -ENOMEM;
dbg->wdata = wdata;
dbg->eeprom = debugfs_create_file("eeprom", S_IRUSR,
dbg->wdata->hdev->debug_dir, dbg, &wiidebug_eeprom_fops);
dbg->drm = debugfs_create_file("drm", S_IRUSR,
dbg->wdata->hdev->debug_dir, dbg, &wiidebug_drm_fops);
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->debug = dbg;
spin_unlock_irqrestore(&wdata->state.lock, flags);
return 0;
}
void wiidebug_deinit(struct wiimote_data *wdata)
{
struct wiimote_debug *dbg = wdata->debug;
unsigned long flags;
if (!dbg)
return;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->debug = NULL;
spin_unlock_irqrestore(&wdata->state.lock, flags);
debugfs_remove(dbg->drm);
debugfs_remove(dbg->eeprom);
kfree(dbg);
}
| linux-master | drivers/hid/hid-wiimote-debug.c |
// SPDX-License-Identifier: GPL-2.0
/*
* HID driver for the Creative SB0540 receiver
*
* Copyright (C) 2019 Red Hat Inc. All Rights Reserved
*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Bastien Nocera <[email protected]>");
MODULE_DESCRIPTION("HID Creative SB0540 receiver");
MODULE_LICENSE("GPL");
static const unsigned short creative_sb0540_key_table[] = {
KEY_POWER,
KEY_RESERVED, /* text: 24bit */
KEY_RESERVED, /* 24bit wheel up */
KEY_RESERVED, /* 24bit wheel down */
KEY_RESERVED, /* text: CMSS */
KEY_RESERVED, /* CMSS wheel Up */
KEY_RESERVED, /* CMSS wheel Down */
KEY_RESERVED, /* text: EAX */
KEY_RESERVED, /* EAX wheel up */
KEY_RESERVED, /* EAX wheel down */
KEY_RESERVED, /* text: 3D Midi */
KEY_RESERVED, /* 3D Midi wheel up */
KEY_RESERVED, /* 3D Midi wheel down */
KEY_MUTE,
KEY_VOLUMEUP,
KEY_VOLUMEDOWN,
KEY_UP,
KEY_LEFT,
KEY_RIGHT,
KEY_REWIND,
KEY_OK,
KEY_FASTFORWARD,
KEY_DOWN,
KEY_AGAIN, /* text: Return, symbol: Jump to */
KEY_PLAY, /* text: Start */
KEY_ESC, /* text: Cancel */
KEY_RECORD,
KEY_OPTION,
KEY_MENU, /* text: Display */
KEY_PREVIOUS,
KEY_PLAYPAUSE,
KEY_NEXT,
KEY_SLOW,
KEY_STOP,
KEY_NUMERIC_1,
KEY_NUMERIC_2,
KEY_NUMERIC_3,
KEY_NUMERIC_4,
KEY_NUMERIC_5,
KEY_NUMERIC_6,
KEY_NUMERIC_7,
KEY_NUMERIC_8,
KEY_NUMERIC_9,
KEY_NUMERIC_0
};
/*
* Codes and keys from lirc's
* remotes/creative/lircd.conf.alsa_usb
* order and size must match creative_sb0540_key_table[] above
*/
static const unsigned short creative_sb0540_codes[] = {
0x619E,
0x916E,
0x926D,
0x936C,
0x718E,
0x946B,
0x956A,
0x8C73,
0x9669,
0x9768,
0x9867,
0x9966,
0x9A65,
0x6E91,
0x629D,
0x639C,
0x7B84,
0x6B94,
0x728D,
0x8778,
0x817E,
0x758A,
0x8D72,
0x8E71,
0x8877,
0x7C83,
0x738C,
0x827D,
0x7689,
0x7F80,
0x7986,
0x7A85,
0x7D82,
0x857A,
0x8B74,
0x8F70,
0x906F,
0x8A75,
0x847B,
0x7887,
0x8976,
0x837C,
0x7788,
0x807F
};
struct creative_sb0540 {
struct input_dev *input_dev;
struct hid_device *hid;
unsigned short keymap[ARRAY_SIZE(creative_sb0540_key_table)];
};
static inline u64 reverse(u64 data, int bits)
{
int i;
u64 c;
c = 0;
for (i = 0; i < bits; i++) {
c |= (u64) (((data & (((u64) 1) << i)) ? 1 : 0))
<< (bits - 1 - i);
}
return (c);
}
static int get_key(struct creative_sb0540 *creative_sb0540, u64 keycode)
{
int i;
for (i = 0; i < ARRAY_SIZE(creative_sb0540_codes); i++) {
if (creative_sb0540_codes[i] == keycode)
return creative_sb0540->keymap[i];
}
return 0;
}
static int creative_sb0540_raw_event(struct hid_device *hid,
struct hid_report *report, u8 *data, int len)
{
struct creative_sb0540 *creative_sb0540 = hid_get_drvdata(hid);
u64 code, main_code;
int key;
if (len != 6)
return 0;
/* From daemons/hw_hiddev.c sb0540_rec() in lirc */
code = reverse(data[5], 8);
main_code = (code << 8) + ((~code) & 0xff);
/*
* Flip to get values in the same format as
* remotes/creative/lircd.conf.alsa_usb in lirc
*/
main_code = ((main_code & 0xff) << 8) +
((main_code & 0xff00) >> 8);
key = get_key(creative_sb0540, main_code);
if (key == 0 || key == KEY_RESERVED) {
hid_err(hid, "Could not get a key for main_code %llX\n",
main_code);
return 0;
}
input_report_key(creative_sb0540->input_dev, key, 1);
input_report_key(creative_sb0540->input_dev, key, 0);
input_sync(creative_sb0540->input_dev);
/* let hidraw and hiddev handle the report */
return 0;
}
static int creative_sb0540_input_configured(struct hid_device *hid,
struct hid_input *hidinput)
{
struct input_dev *input_dev = hidinput->input;
struct creative_sb0540 *creative_sb0540 = hid_get_drvdata(hid);
int i;
creative_sb0540->input_dev = input_dev;
input_dev->keycode = creative_sb0540->keymap;
input_dev->keycodesize = sizeof(unsigned short);
input_dev->keycodemax = ARRAY_SIZE(creative_sb0540->keymap);
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
memcpy(creative_sb0540->keymap, creative_sb0540_key_table,
sizeof(creative_sb0540->keymap));
for (i = 0; i < ARRAY_SIZE(creative_sb0540_key_table); i++)
set_bit(creative_sb0540->keymap[i], input_dev->keybit);
clear_bit(KEY_RESERVED, input_dev->keybit);
return 0;
}
static int creative_sb0540_input_mapping(struct hid_device *hid,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
/*
* We are remapping the keys ourselves, so ignore the hid-input
* keymap processing.
*/
return -1;
}
static int creative_sb0540_probe(struct hid_device *hid,
const struct hid_device_id *id)
{
int ret;
struct creative_sb0540 *creative_sb0540;
creative_sb0540 = devm_kzalloc(&hid->dev,
sizeof(struct creative_sb0540), GFP_KERNEL);
if (!creative_sb0540)
return -ENOMEM;
creative_sb0540->hid = hid;
/* force input as some remotes bypass the input registration */
hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
hid_set_drvdata(hid, creative_sb0540);
ret = hid_parse(hid);
if (ret) {
hid_err(hid, "parse failed\n");
return ret;
}
ret = hid_hw_start(hid, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hid, "hw start failed\n");
return ret;
}
return ret;
}
static const struct hid_device_id creative_sb0540_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB0540) },
{ }
};
MODULE_DEVICE_TABLE(hid, creative_sb0540_devices);
static struct hid_driver creative_sb0540_driver = {
.name = "creative-sb0540",
.id_table = creative_sb0540_devices,
.raw_event = creative_sb0540_raw_event,
.input_configured = creative_sb0540_input_configured,
.probe = creative_sb0540_probe,
.input_mapping = creative_sb0540_input_mapping,
};
module_hid_driver(creative_sb0540_driver);
| linux-master | drivers/hid/hid-creative-sb0540.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for multitouch panels
*
* Copyright (c) 2010-2012 Stephane Chatty <[email protected]>
* Copyright (c) 2010-2013 Benjamin Tissoires <[email protected]>
* Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
* Copyright (c) 2012-2013 Red Hat, Inc
*
* This code is partly based on hid-egalax.c:
*
* Copyright (c) 2010 Stephane Chatty <[email protected]>
* Copyright (c) 2010 Henrik Rydberg <[email protected]>
* Copyright (c) 2010 Canonical, Ltd.
*
* This code is partly based on hid-3m-pct.c:
*
* Copyright (c) 2009-2010 Stephane Chatty <[email protected]>
* Copyright (c) 2010 Henrik Rydberg <[email protected]>
* Copyright (c) 2010 Canonical, Ltd.
*/
/*
*/
/*
* This driver is regularly tested thanks to the test suite in hid-tools[1].
* Please run these regression tests before patching this module so that
* your patch won't break existing known devices.
*
* [1] https://gitlab.freedesktop.org/libevdev/hid-tools
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input/mt.h>
#include <linux/jiffies.h>
#include <linux/string.h>
#include <linux/timer.h>
MODULE_AUTHOR("Stephane Chatty <[email protected]>");
MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
MODULE_DESCRIPTION("HID multitouch panels");
MODULE_LICENSE("GPL");
#include "hid-ids.h"
/* quirks to control the device */
#define MT_QUIRK_NOT_SEEN_MEANS_UP BIT(0)
#define MT_QUIRK_SLOT_IS_CONTACTID BIT(1)
#define MT_QUIRK_CYPRESS BIT(2)
#define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3)
#define MT_QUIRK_ALWAYS_VALID BIT(4)
#define MT_QUIRK_VALID_IS_INRANGE BIT(5)
#define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6)
#define MT_QUIRK_CONFIDENCE BIT(7)
#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8)
#define MT_QUIRK_NO_AREA BIT(9)
#define MT_QUIRK_IGNORE_DUPLICATES BIT(10)
#define MT_QUIRK_HOVERING BIT(11)
#define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12)
#define MT_QUIRK_FORCE_GET_FEATURE BIT(13)
#define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14)
#define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15)
#define MT_QUIRK_STICKY_FINGERS BIT(16)
#define MT_QUIRK_ASUS_CUSTOM_UP BIT(17)
#define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18)
#define MT_QUIRK_SEPARATE_APP_REPORT BIT(19)
#define MT_QUIRK_FORCE_MULTI_INPUT BIT(20)
#define MT_QUIRK_DISABLE_WAKEUP BIT(21)
#define MT_QUIRK_ORIENTATION_INVERT BIT(22)
#define MT_INPUTMODE_TOUCHSCREEN 0x02
#define MT_INPUTMODE_TOUCHPAD 0x03
#define MT_BUTTONTYPE_CLICKPAD 0
enum latency_mode {
HID_LATENCY_NORMAL = 0,
HID_LATENCY_HIGH = 1,
};
#define MT_IO_FLAGS_RUNNING 0
#define MT_IO_FLAGS_ACTIVE_SLOTS 1
#define MT_IO_FLAGS_PENDING_SLOTS 2
static const bool mtrue = true; /* default for true */
static const bool mfalse; /* default for false */
static const __s32 mzero; /* default for 0 */
#define DEFAULT_TRUE ((void *)&mtrue)
#define DEFAULT_FALSE ((void *)&mfalse)
#define DEFAULT_ZERO ((void *)&mzero)
struct mt_usages {
struct list_head list;
__s32 *x, *y, *cx, *cy, *p, *w, *h, *a;
__s32 *contactid; /* the device ContactID assigned to this slot */
bool *tip_state; /* is the touch valid? */
bool *inrange_state; /* is the finger in proximity of the sensor? */
bool *confidence_state; /* is the touch made by a finger? */
};
struct mt_application {
struct list_head list;
unsigned int application;
unsigned int report_id;
struct list_head mt_usages; /* mt usages list */
__s32 quirks;
__s32 *scantime; /* scantime reported */
__s32 scantime_logical_max; /* max value for raw scantime */
__s32 *raw_cc; /* contact count in the report */
int left_button_state; /* left button state */
unsigned int mt_flags; /* flags to pass to input-mt */
unsigned long *pending_palm_slots; /* slots where we reported palm
* and need to release */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
__u8 buttons_count; /* number of physical buttons per touchpad */
__u8 touches_by_report; /* how many touches are present in one report:
* 1 means we should use a serial protocol
* > 1 means hybrid (multitouch) protocol
*/
__s32 dev_time; /* the scan time provided by the device */
unsigned long jiffies; /* the frame's jiffies */
int timestamp; /* the timestamp to be sent */
int prev_scantime; /* scantime reported previously */
bool have_contact_count;
};
struct mt_class {
__s32 name; /* MT_CLS */
__s32 quirks;
__s32 sn_move; /* Signal/noise ratio for move events */
__s32 sn_width; /* Signal/noise ratio for width events */
__s32 sn_height; /* Signal/noise ratio for height events */
__s32 sn_pressure; /* Signal/noise ratio for pressure events */
__u8 maxcontacts;
bool is_indirect; /* true for touchpads */
bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
};
struct mt_report_data {
struct list_head list;
struct hid_report *report;
struct mt_application *application;
bool is_mt_collection;
};
struct mt_device {
struct mt_class mtclass; /* our mt device class */
struct timer_list release_timer; /* to release sticky fingers */
struct hid_device *hdev; /* hid_device we're attached to */
unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */
__u8 inputmode_value; /* InputMode HID feature value */
__u8 maxcontacts;
bool is_buttonpad; /* is this device a button pad? */
bool serial_maybe; /* need to check for serial protocol */
struct list_head applications;
struct list_head reports;
};
static void mt_post_parse_default_settings(struct mt_device *td,
struct mt_application *app);
static void mt_post_parse(struct mt_device *td, struct mt_application *app);
/* classes of device behavior */
#define MT_CLS_DEFAULT 0x0001
#define MT_CLS_SERIAL 0x0002
#define MT_CLS_CONFIDENCE 0x0003
#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
/* reserved 0x0008 */
#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
#define MT_CLS_NSMU 0x000a
/* reserved 0x0010 */
/* reserved 0x0011 */
#define MT_CLS_WIN_8 0x0012
#define MT_CLS_EXPORT_ALL_INPUTS 0x0013
/* reserved 0x0014 */
#define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015
#define MT_CLS_WIN_8_DISABLE_WAKEUP 0x0016
#define MT_CLS_WIN_8_NO_STICKY_FINGERS 0x0017
#define MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU 0x0018
/* vendor specific classes */
#define MT_CLS_3M 0x0101
/* reserved 0x0102 */
#define MT_CLS_EGALAX 0x0103
#define MT_CLS_EGALAX_SERIAL 0x0104
#define MT_CLS_TOPSEED 0x0105
#define MT_CLS_PANASONIC 0x0106
#define MT_CLS_FLATFROG 0x0107
#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
#define MT_CLS_LG 0x010a
#define MT_CLS_ASUS 0x010b
#define MT_CLS_VTL 0x0110
#define MT_CLS_GOOGLE 0x0111
#define MT_CLS_RAZER_BLADE_STEALTH 0x0112
#define MT_CLS_SMART_TECH 0x0113
#define MT_DEFAULT_MAXCONTACT 10
#define MT_MAX_MAXCONTACT 250
/*
* Resync device and local timestamps after that many microseconds without
* receiving data.
*/
#define MAX_TIMESTAMP_INTERVAL 1000000
#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
/*
* these device-dependent functions determine what slot corresponds
* to a valid contact that was just read.
*/
static int cypress_compute_slot(struct mt_application *application,
struct mt_usages *slot)
{
if (*slot->contactid != 0 || application->num_received == 0)
return *slot->contactid;
else
return -1;
}
static const struct mt_class mt_classes[] = {
{ .name = MT_CLS_DEFAULT,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE },
{ .name = MT_CLS_NSMU,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
{ .name = MT_CLS_SERIAL,
.quirks = MT_QUIRK_ALWAYS_VALID},
{ .name = MT_CLS_CONFIDENCE,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
{ .name = MT_CLS_CONFIDENCE_CONTACT_ID,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
MT_QUIRK_SLOT_IS_CONTACTID },
{ .name = MT_CLS_CONFIDENCE_MINUS_ONE,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTID,
.maxcontacts = 2 },
{ .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTNUMBER,
.maxcontacts = 2 },
{ .name = MT_CLS_INRANGE_CONTACTNUMBER,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTNUMBER },
{ .name = MT_CLS_WIN_8,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_STICKY_FINGERS |
MT_QUIRK_WIN8_PTP_BUTTONS,
.export_all_inputs = true },
{ .name = MT_CLS_EXPORT_ALL_INPUTS,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE,
.export_all_inputs = true },
{ .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_STICKY_FINGERS |
MT_QUIRK_WIN8_PTP_BUTTONS |
MT_QUIRK_FORCE_MULTI_INPUT,
.export_all_inputs = true },
{ .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU,
.quirks = MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_STICKY_FINGERS |
MT_QUIRK_WIN8_PTP_BUTTONS |
MT_QUIRK_FORCE_MULTI_INPUT |
MT_QUIRK_NOT_SEEN_MEANS_UP,
.export_all_inputs = true },
{ .name = MT_CLS_WIN_8_DISABLE_WAKEUP,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_STICKY_FINGERS |
MT_QUIRK_WIN8_PTP_BUTTONS |
MT_QUIRK_DISABLE_WAKEUP,
.export_all_inputs = true },
{ .name = MT_CLS_WIN_8_NO_STICKY_FINGERS,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_WIN8_PTP_BUTTONS,
.export_all_inputs = true },
/*
* vendor specific classes
*/
{ .name = MT_CLS_3M,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_TOUCH_SIZE_SCALING,
.sn_move = 2048,
.sn_width = 128,
.sn_height = 128,
.maxcontacts = 60,
},
{ .name = MT_CLS_EGALAX,
.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_VALID_IS_INRANGE,
.sn_move = 4096,
.sn_pressure = 32,
},
{ .name = MT_CLS_EGALAX_SERIAL,
.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_ALWAYS_VALID,
.sn_move = 4096,
.sn_pressure = 32,
},
{ .name = MT_CLS_TOPSEED,
.quirks = MT_QUIRK_ALWAYS_VALID,
.is_indirect = true,
.maxcontacts = 2,
},
{ .name = MT_CLS_PANASONIC,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
.maxcontacts = 4 },
{ .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTID,
.maxcontacts = 2
},
{ .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_SLOT_IS_CONTACTID
},
{ .name = MT_CLS_FLATFROG,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_NO_AREA,
.sn_move = 2048,
.maxcontacts = 40,
},
{ .name = MT_CLS_LG,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_FIX_CONST_CONTACT_ID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE },
{ .name = MT_CLS_ASUS,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_ASUS_CUSTOM_UP },
{ .name = MT_CLS_VTL,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_FORCE_GET_FEATURE,
},
{ .name = MT_CLS_GOOGLE,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_HOVERING
},
{ .name = MT_CLS_RAZER_BLADE_STEALTH,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_HOVERING |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_WIN8_PTP_BUTTONS,
},
{ .name = MT_CLS_SMART_TECH,
.quirks = MT_QUIRK_ALWAYS_VALID |
MT_QUIRK_IGNORE_DUPLICATES |
MT_QUIRK_CONTACT_CNT_ACCURATE |
MT_QUIRK_SEPARATE_APP_REPORT,
},
{ }
};
static ssize_t mt_show_quirks(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct mt_device *td = hid_get_drvdata(hdev);
return sprintf(buf, "%u\n", td->mtclass.quirks);
}
static ssize_t mt_set_quirks(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_application *application;
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
td->mtclass.quirks = val;
list_for_each_entry(application, &td->applications, list) {
application->quirks = val;
if (!application->have_contact_count)
application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
}
return count;
}
static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
static struct attribute *sysfs_attrs[] = {
&dev_attr_quirks.attr,
NULL
};
static const struct attribute_group mt_attribute_group = {
.attrs = sysfs_attrs
};
static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
{
int ret;
u32 size = hid_report_len(report);
u8 *buf;
/*
* Do not fetch the feature report if the device has been explicitly
* marked as non-capable.
*/
if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS)
return;
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf)
return;
ret = hid_hw_raw_request(hdev, report->id, buf, size,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
report->id);
} else {
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
size, 0);
if (ret)
dev_warn(&hdev->dev, "failed to report feature\n");
}
kfree(buf);
}
static void mt_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct mt_device *td = hid_get_drvdata(hdev);
switch (usage->hid) {
case HID_DG_CONTACTMAX:
mt_get_feature(hdev, field->report);
td->maxcontacts = field->value[0];
if (!td->maxcontacts &&
field->logical_maximum <= MT_MAX_MAXCONTACT)
td->maxcontacts = field->logical_maximum;
if (td->mtclass.maxcontacts)
/* check if the maxcontacts is given by the class */
td->maxcontacts = td->mtclass.maxcontacts;
break;
case HID_DG_BUTTONTYPE:
if (usage->usage_index >= field->report_count) {
dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
break;
}
mt_get_feature(hdev, field->report);
if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
td->is_buttonpad = true;
break;
case 0xff0000c5:
/* Retrieve the Win8 blob once to enable some devices */
if (usage->usage_index == 0)
mt_get_feature(hdev, field->report);
break;
}
}
static void set_abs(struct input_dev *input, unsigned int code,
struct hid_field *field, int snratio)
{
int fmin = field->logical_minimum;
int fmax = field->logical_maximum;
int fuzz = snratio ? (fmax - fmin) / snratio : 0;
input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
}
static struct mt_usages *mt_allocate_usage(struct hid_device *hdev,
struct mt_application *application)
{
struct mt_usages *usage;
usage = devm_kzalloc(&hdev->dev, sizeof(*usage), GFP_KERNEL);
if (!usage)
return NULL;
/* set some defaults so we do not need to check for null pointers */
usage->x = DEFAULT_ZERO;
usage->y = DEFAULT_ZERO;
usage->cx = DEFAULT_ZERO;
usage->cy = DEFAULT_ZERO;
usage->p = DEFAULT_ZERO;
usage->w = DEFAULT_ZERO;
usage->h = DEFAULT_ZERO;
usage->a = DEFAULT_ZERO;
usage->contactid = DEFAULT_ZERO;
usage->tip_state = DEFAULT_FALSE;
usage->inrange_state = DEFAULT_FALSE;
usage->confidence_state = DEFAULT_TRUE;
list_add_tail(&usage->list, &application->mt_usages);
return usage;
}
static struct mt_application *mt_allocate_application(struct mt_device *td,
struct hid_report *report)
{
unsigned int application = report->application;
struct mt_application *mt_application;
mt_application = devm_kzalloc(&td->hdev->dev, sizeof(*mt_application),
GFP_KERNEL);
if (!mt_application)
return NULL;
mt_application->application = application;
INIT_LIST_HEAD(&mt_application->mt_usages);
if (application == HID_DG_TOUCHSCREEN)
mt_application->mt_flags |= INPUT_MT_DIRECT;
/*
* Model touchscreens providing buttons as touchpads.
*/
if (application == HID_DG_TOUCHPAD) {
mt_application->mt_flags |= INPUT_MT_POINTER;
td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
}
mt_application->scantime = DEFAULT_ZERO;
mt_application->raw_cc = DEFAULT_ZERO;
mt_application->quirks = td->mtclass.quirks;
mt_application->report_id = report->id;
list_add_tail(&mt_application->list, &td->applications);
return mt_application;
}
static struct mt_application *mt_find_application(struct mt_device *td,
struct hid_report *report)
{
unsigned int application = report->application;
struct mt_application *tmp, *mt_application = NULL;
list_for_each_entry(tmp, &td->applications, list) {
if (application == tmp->application) {
if (!(td->mtclass.quirks & MT_QUIRK_SEPARATE_APP_REPORT) ||
tmp->report_id == report->id) {
mt_application = tmp;
break;
}
}
}
if (!mt_application)
mt_application = mt_allocate_application(td, report);
return mt_application;
}
static struct mt_report_data *mt_allocate_report_data(struct mt_device *td,
struct hid_report *report)
{
struct mt_report_data *rdata;
struct hid_field *field;
int r, n;
rdata = devm_kzalloc(&td->hdev->dev, sizeof(*rdata), GFP_KERNEL);
if (!rdata)
return NULL;
rdata->report = report;
rdata->application = mt_find_application(td, report);
if (!rdata->application) {
devm_kfree(&td->hdev->dev, rdata);
return NULL;
}
for (r = 0; r < report->maxfield; r++) {
field = report->field[r];
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
continue;
if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) {
for (n = 0; n < field->report_count; n++) {
if (field->usage[n].hid == HID_DG_CONTACTID) {
rdata->is_mt_collection = true;
break;
}
}
}
}
list_add_tail(&rdata->list, &td->reports);
return rdata;
}
static struct mt_report_data *mt_find_report_data(struct mt_device *td,
struct hid_report *report)
{
struct mt_report_data *tmp, *rdata = NULL;
list_for_each_entry(tmp, &td->reports, list) {
if (report == tmp->report) {
rdata = tmp;
break;
}
}
if (!rdata)
rdata = mt_allocate_report_data(td, report);
return rdata;
}
static void mt_store_field(struct hid_device *hdev,
struct mt_application *application,
__s32 *value,
size_t offset)
{
struct mt_usages *usage;
__s32 **target;
if (list_empty(&application->mt_usages))
usage = mt_allocate_usage(hdev, application);
else
usage = list_last_entry(&application->mt_usages,
struct mt_usages,
list);
if (!usage)
return;
target = (__s32 **)((char *)usage + offset);
/* the value has already been filled, create a new slot */
if (*target != DEFAULT_TRUE &&
*target != DEFAULT_FALSE &&
*target != DEFAULT_ZERO) {
if (usage->contactid == DEFAULT_ZERO ||
usage->x == DEFAULT_ZERO ||
usage->y == DEFAULT_ZERO) {
hid_dbg(hdev,
"ignoring duplicate usage on incomplete");
return;
}
usage = mt_allocate_usage(hdev, application);
if (!usage)
return;
target = (__s32 **)((char *)usage + offset);
}
*target = value;
}
#define MT_STORE_FIELD(__name) \
mt_store_field(hdev, app, \
&field->value[usage->usage_index], \
offsetof(struct mt_usages, __name))
static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max, struct mt_application *app)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_class *cls = &td->mtclass;
int code;
struct hid_usage *prev_usage = NULL;
/*
* Model touchscreens providing buttons as touchpads.
*/
if (field->application == HID_DG_TOUCHSCREEN &&
(usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
app->mt_flags |= INPUT_MT_POINTER;
td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
}
/* count the buttons on touchpads */
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
app->buttons_count++;
if (usage->usage_index)
prev_usage = &field->usage[usage->usage_index - 1];
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
if (prev_usage && (prev_usage->hid == usage->hid)) {
code = ABS_MT_TOOL_X;
MT_STORE_FIELD(cx);
} else {
code = ABS_MT_POSITION_X;
MT_STORE_FIELD(x);
}
set_abs(hi->input, code, field, cls->sn_move);
/*
* A system multi-axis that exports X and Y has a high
* chance of being used directly on a surface
*/
if (field->application == HID_GD_SYSTEM_MULTIAXIS) {
__set_bit(INPUT_PROP_DIRECT,
hi->input->propbit);
input_set_abs_params(hi->input,
ABS_MT_TOOL_TYPE,
MT_TOOL_DIAL,
MT_TOOL_DIAL, 0, 0);
}
return 1;
case HID_GD_Y:
if (prev_usage && (prev_usage->hid == usage->hid)) {
code = ABS_MT_TOOL_Y;
MT_STORE_FIELD(cy);
} else {
code = ABS_MT_POSITION_Y;
MT_STORE_FIELD(y);
}
set_abs(hi->input, code, field, cls->sn_move);
return 1;
}
return 0;
case HID_UP_DIGITIZER:
switch (usage->hid) {
case HID_DG_INRANGE:
if (app->quirks & MT_QUIRK_HOVERING) {
input_set_abs_params(hi->input,
ABS_MT_DISTANCE, 0, 1, 0, 0);
}
MT_STORE_FIELD(inrange_state);
return 1;
case HID_DG_CONFIDENCE:
if ((cls->name == MT_CLS_WIN_8 ||
cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT ||
cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU ||
cls->name == MT_CLS_WIN_8_DISABLE_WAKEUP) &&
(field->application == HID_DG_TOUCHPAD ||
field->application == HID_DG_TOUCHSCREEN))
app->quirks |= MT_QUIRK_CONFIDENCE;
if (app->quirks & MT_QUIRK_CONFIDENCE)
input_set_abs_params(hi->input,
ABS_MT_TOOL_TYPE,
MT_TOOL_FINGER,
MT_TOOL_PALM, 0, 0);
MT_STORE_FIELD(confidence_state);
return 1;
case HID_DG_TIPSWITCH:
if (field->application != HID_GD_SYSTEM_MULTIAXIS)
input_set_capability(hi->input,
EV_KEY, BTN_TOUCH);
MT_STORE_FIELD(tip_state);
return 1;
case HID_DG_CONTACTID:
MT_STORE_FIELD(contactid);
app->touches_by_report++;
return 1;
case HID_DG_WIDTH:
if (!(app->quirks & MT_QUIRK_NO_AREA))
set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
cls->sn_width);
MT_STORE_FIELD(w);
return 1;
case HID_DG_HEIGHT:
if (!(app->quirks & MT_QUIRK_NO_AREA)) {
set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
cls->sn_height);
/*
* Only set ABS_MT_ORIENTATION if it is not
* already set by the HID_DG_AZIMUTH usage.
*/
if (!test_bit(ABS_MT_ORIENTATION,
hi->input->absbit))
input_set_abs_params(hi->input,
ABS_MT_ORIENTATION, 0, 1, 0, 0);
}
MT_STORE_FIELD(h);
return 1;
case HID_DG_TIPPRESSURE:
set_abs(hi->input, ABS_MT_PRESSURE, field,
cls->sn_pressure);
MT_STORE_FIELD(p);
return 1;
case HID_DG_SCANTIME:
input_set_capability(hi->input, EV_MSC, MSC_TIMESTAMP);
app->scantime = &field->value[usage->usage_index];
app->scantime_logical_max = field->logical_maximum;
return 1;
case HID_DG_CONTACTCOUNT:
app->have_contact_count = true;
app->raw_cc = &field->value[usage->usage_index];
return 1;
case HID_DG_AZIMUTH:
/*
* Azimuth has the range of [0, MAX) representing a full
* revolution. Set ABS_MT_ORIENTATION to a quarter of
* MAX according the definition of ABS_MT_ORIENTATION
*/
input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
-field->logical_maximum / 4,
field->logical_maximum / 4,
cls->sn_move ?
field->logical_maximum / cls->sn_move : 0, 0);
MT_STORE_FIELD(a);
return 1;
case HID_DG_CONTACTMAX:
/* contact max are global to the report */
return -1;
case HID_DG_TOUCH:
/* Legacy devices use TIPSWITCH and not TOUCH.
* Let's just ignore this field. */
return -1;
}
/* let hid-input decide for the others */
return 0;
case HID_UP_BUTTON:
code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
/*
* MS PTP spec says that external buttons left and right have
* usages 2 and 3.
*/
if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
field->application == HID_DG_TOUCHPAD &&
(usage->hid & HID_USAGE) > 1)
code--;
if (field->application == HID_GD_SYSTEM_MULTIAXIS)
code = BTN_0 + ((usage->hid - 1) & HID_USAGE);
hid_map_usage(hi, usage, bit, max, EV_KEY, code);
if (!*bit)
return -1;
input_set_capability(hi->input, EV_KEY, code);
return 1;
case 0xff000000:
/* we do not want to map these: no input-oriented meaning */
return -1;
}
return 0;
}
static int mt_compute_slot(struct mt_device *td, struct mt_application *app,
struct mt_usages *slot,
struct input_dev *input)
{
__s32 quirks = app->quirks;
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
return *slot->contactid;
if (quirks & MT_QUIRK_CYPRESS)
return cypress_compute_slot(app, slot);
if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
return app->num_received;
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
return *slot->contactid - 1;
return input_mt_get_slot_by_key(input, *slot->contactid);
}
static void mt_release_pending_palms(struct mt_device *td,
struct mt_application *app,
struct input_dev *input)
{
int slotnum;
bool need_sync = false;
for_each_set_bit(slotnum, app->pending_palm_slots, td->maxcontacts) {
clear_bit(slotnum, app->pending_palm_slots);
input_mt_slot(input, slotnum);
input_mt_report_slot_inactive(input);
need_sync = true;
}
if (need_sync) {
input_mt_sync_frame(input);
input_sync(input);
}
}
/*
* this function is called when a whole packet has been received and processed,
* so that it can decide what to send to the input layer.
*/
static void mt_sync_frame(struct mt_device *td, struct mt_application *app,
struct input_dev *input)
{
if (app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS)
input_event(input, EV_KEY, BTN_LEFT, app->left_button_state);
input_mt_sync_frame(input);
input_event(input, EV_MSC, MSC_TIMESTAMP, app->timestamp);
input_sync(input);
mt_release_pending_palms(td, app, input);
app->num_received = 0;
app->left_button_state = 0;
if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags))
set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
else
clear_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
}
static int mt_compute_timestamp(struct mt_application *app, __s32 value)
{
long delta = value - app->prev_scantime;
unsigned long jdelta = jiffies_to_usecs(jiffies - app->jiffies);
app->jiffies = jiffies;
if (delta < 0)
delta += app->scantime_logical_max;
/* HID_DG_SCANTIME is expressed in 100us, we want it in us. */
delta *= 100;
if (jdelta > MAX_TIMESTAMP_INTERVAL)
/* No data received for a while, resync the timestamp. */
return 0;
else
return app->timestamp + delta;
}
static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
/* we will handle the hidinput part later, now remains hiddev */
if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
hid->hiddev_hid_event(hid, field, usage, value);
return 1;
}
static int mt_process_slot(struct mt_device *td, struct input_dev *input,
struct mt_application *app,
struct mt_usages *slot)
{
struct input_mt *mt = input->mt;
struct hid_device *hdev = td->hdev;
__s32 quirks = app->quirks;
bool valid = true;
bool confidence_state = true;
bool inrange_state = false;
int active;
int slotnum;
int tool = MT_TOOL_FINGER;
if (!slot)
return -EINVAL;
if ((quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
app->num_received >= app->num_expected)
return -EAGAIN;
if (!(quirks & MT_QUIRK_ALWAYS_VALID)) {
if (quirks & MT_QUIRK_VALID_IS_INRANGE)
valid = *slot->inrange_state;
if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
valid = *slot->tip_state;
if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
valid = *slot->confidence_state;
if (!valid)
return 0;
}
slotnum = mt_compute_slot(td, app, slot, input);
if (slotnum < 0 || slotnum >= td->maxcontacts)
return 0;
if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
struct input_mt_slot *i_slot = &mt->slots[slotnum];
if (input_mt_is_active(i_slot) &&
input_mt_is_used(mt, i_slot))
return -EAGAIN;
}
if (quirks & MT_QUIRK_CONFIDENCE)
confidence_state = *slot->confidence_state;
if (quirks & MT_QUIRK_HOVERING)
inrange_state = *slot->inrange_state;
active = *slot->tip_state || inrange_state;
if (app->application == HID_GD_SYSTEM_MULTIAXIS)
tool = MT_TOOL_DIAL;
else if (unlikely(!confidence_state)) {
tool = MT_TOOL_PALM;
if (!active && mt &&
input_mt_is_active(&mt->slots[slotnum])) {
/*
* The non-confidence was reported for
* previously valid contact that is also no
* longer valid. We can't simply report
* lift-off as userspace will not be aware
* of non-confidence, so we need to split
* it into 2 events: active MT_TOOL_PALM
* and a separate liftoff.
*/
active = true;
set_bit(slotnum, app->pending_palm_slots);
}
}
input_mt_slot(input, slotnum);
input_mt_report_slot_state(input, tool, active);
if (active) {
/* this finger is in proximity of the sensor */
int wide = (*slot->w > *slot->h);
int major = max(*slot->w, *slot->h);
int minor = min(*slot->w, *slot->h);
int orientation = wide;
int max_azimuth;
int azimuth;
int x;
int y;
int cx;
int cy;
if (slot->a != DEFAULT_ZERO) {
/*
* Azimuth is counter-clockwise and ranges from [0, MAX)
* (a full revolution). Convert it to clockwise ranging
* [-MAX/2, MAX/2].
*
* Note that ABS_MT_ORIENTATION require us to report
* the limit of [-MAX/4, MAX/4], but the value can go
* out of range to [-MAX/2, MAX/2] to report an upside
* down ellipsis.
*/
azimuth = *slot->a;
max_azimuth = input_abs_get_max(input,
ABS_MT_ORIENTATION);
if (azimuth > max_azimuth * 2)
azimuth -= max_azimuth * 4;
orientation = -azimuth;
if (quirks & MT_QUIRK_ORIENTATION_INVERT)
orientation = -orientation;
}
if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) {
/*
* divided by two to match visual scale of touch
* for devices with this quirk
*/
major = major >> 1;
minor = minor >> 1;
}
x = hdev->quirks & HID_QUIRK_X_INVERT ?
input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->x :
*slot->x;
y = hdev->quirks & HID_QUIRK_Y_INVERT ?
input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->y :
*slot->y;
cx = hdev->quirks & HID_QUIRK_X_INVERT ?
input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->cx :
*slot->cx;
cy = hdev->quirks & HID_QUIRK_Y_INVERT ?
input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->cy :
*slot->cy;
input_event(input, EV_ABS, ABS_MT_POSITION_X, x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, y);
input_event(input, EV_ABS, ABS_MT_TOOL_X, cx);
input_event(input, EV_ABS, ABS_MT_TOOL_Y, cy);
input_event(input, EV_ABS, ABS_MT_DISTANCE, !*slot->tip_state);
input_event(input, EV_ABS, ABS_MT_ORIENTATION, orientation);
input_event(input, EV_ABS, ABS_MT_PRESSURE, *slot->p);
input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
}
return 0;
}
static void mt_process_mt_event(struct hid_device *hid,
struct mt_application *app,
struct hid_field *field,
struct hid_usage *usage,
__s32 value,
bool first_packet)
{
__s32 quirks = app->quirks;
struct input_dev *input = field->hidinput->input;
if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT))
return;
if (quirks & MT_QUIRK_WIN8_PTP_BUTTONS) {
/*
* For Win8 PTP touchpads we should only look at
* non finger/touch events in the first_packet of a
* (possible) multi-packet frame.
*/
if (!first_packet)
return;
/*
* For Win8 PTP touchpads we map both the clickpad click
* and any "external" left buttons to BTN_LEFT if a
* device claims to have both we need to report 1 for
* BTN_LEFT if either is pressed, so we or all values
* together and report the result in mt_sync_frame().
*/
if (usage->type == EV_KEY && usage->code == BTN_LEFT) {
app->left_button_state |= value;
return;
}
}
input_event(input, usage->type, usage->code, value);
}
static void mt_touch_report(struct hid_device *hid,
struct mt_report_data *rdata)
{
struct mt_device *td = hid_get_drvdata(hid);
struct hid_report *report = rdata->report;
struct mt_application *app = rdata->application;
struct hid_field *field;
struct input_dev *input;
struct mt_usages *slot;
bool first_packet;
unsigned count;
int r, n;
int scantime = 0;
int contact_count = -1;
/* sticky fingers release in progress, abort */
if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
return;
scantime = *app->scantime;
app->timestamp = mt_compute_timestamp(app, scantime);
if (app->raw_cc != DEFAULT_ZERO)
contact_count = *app->raw_cc;
/*
* Includes multi-packet support where subsequent
* packets are sent with zero contactcount.
*/
if (contact_count >= 0) {
/*
* For Win8 PTPs the first packet (td->num_received == 0) may
* have a contactcount of 0 if there only is a button event.
* We double check that this is not a continuation packet
* of a possible multi-packet frame be checking that the
* timestamp has changed.
*/
if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
app->num_received == 0 &&
app->prev_scantime != scantime)
app->num_expected = contact_count;
/* A non 0 contact count always indicates a first packet */
else if (contact_count)
app->num_expected = contact_count;
}
app->prev_scantime = scantime;
first_packet = app->num_received == 0;
input = report->field[0]->hidinput->input;
list_for_each_entry(slot, &app->mt_usages, list) {
if (!mt_process_slot(td, input, app, slot))
app->num_received++;
}
for (r = 0; r < report->maxfield; r++) {
field = report->field[r];
count = field->report_count;
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
continue;
for (n = 0; n < count; n++)
mt_process_mt_event(hid, app, field,
&field->usage[n], field->value[n],
first_packet);
}
if (app->num_received >= app->num_expected)
mt_sync_frame(td, app, input);
/*
* Windows 8 specs says 2 things:
* - once a contact has been reported, it has to be reported in each
* subsequent report
* - the report rate when fingers are present has to be at least
* the refresh rate of the screen, 60 or 120 Hz
*
* I interprete this that the specification forces a report rate of
* at least 60 Hz for a touchscreen to be certified.
* Which means that if we do not get a report whithin 16 ms, either
* something wrong happens, either the touchscreen forgets to send
* a release. Taking a reasonable margin allows to remove issues
* with USB communication or the load of the machine.
*
* Given that Win 8 devices are forced to send a release, this will
* only affect laggish machines and the ones that have a firmware
* defect.
*/
if (app->quirks & MT_QUIRK_STICKY_FINGERS) {
if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
mod_timer(&td->release_timer,
jiffies + msecs_to_jiffies(100));
else
del_timer(&td->release_timer);
}
clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
}
static int mt_touch_input_configured(struct hid_device *hdev,
struct hid_input *hi,
struct mt_application *app)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_class *cls = &td->mtclass;
struct input_dev *input = hi->input;
int ret;
if (!td->maxcontacts)
td->maxcontacts = MT_DEFAULT_MAXCONTACT;
mt_post_parse(td, app);
if (td->serial_maybe)
mt_post_parse_default_settings(td, app);
if (cls->is_indirect)
app->mt_flags |= INPUT_MT_POINTER;
if (app->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
app->mt_flags |= INPUT_MT_DROP_UNUSED;
/* check for clickpads */
if ((app->mt_flags & INPUT_MT_POINTER) &&
(app->buttons_count == 1))
td->is_buttonpad = true;
if (td->is_buttonpad)
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
app->pending_palm_slots = devm_kcalloc(&hi->input->dev,
BITS_TO_LONGS(td->maxcontacts),
sizeof(long),
GFP_KERNEL);
if (!app->pending_palm_slots)
return -ENOMEM;
ret = input_mt_init_slots(input, td->maxcontacts, app->mt_flags);
if (ret)
return ret;
app->mt_flags = 0;
return 0;
}
#define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
max, EV_KEY, (c))
static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_application *application;
struct mt_report_data *rdata;
rdata = mt_find_report_data(td, field->report);
if (!rdata) {
hid_err(hdev, "failed to allocate data for report\n");
return 0;
}
application = rdata->application;
/*
* If mtclass.export_all_inputs is not set, only map fields from
* TouchScreen or TouchPad collections. We need to ignore fields
* that belong to other collections such as Mouse that might have
* the same GenericDesktop usages.
*/
if (!td->mtclass.export_all_inputs &&
field->application != HID_DG_TOUCHSCREEN &&
field->application != HID_DG_PEN &&
field->application != HID_DG_TOUCHPAD &&
field->application != HID_GD_KEYBOARD &&
field->application != HID_GD_SYSTEM_CONTROL &&
field->application != HID_CP_CONSUMER_CONTROL &&
field->application != HID_GD_WIRELESS_RADIO_CTLS &&
field->application != HID_GD_SYSTEM_MULTIAXIS &&
!(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
application->quirks & MT_QUIRK_ASUS_CUSTOM_UP))
return -1;
/*
* Some Asus keyboard+touchpad devices have the hotkeys defined in the
* touchpad report descriptor. We need to treat these as an array to
* map usages to input keys.
*/
if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
application->quirks & MT_QUIRK_ASUS_CUSTOM_UP &&
(usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) {
set_bit(EV_REP, hi->input->evbit);
if (field->flags & HID_MAIN_ITEM_VARIABLE)
field->flags &= ~HID_MAIN_ITEM_VARIABLE;
switch (usage->hid & HID_USAGE) {
case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x6b: mt_map_key_clear(KEY_F21); break;
case 0x6c: mt_map_key_clear(KEY_SLEEP); break;
default:
return -1;
}
return 1;
}
if (rdata->is_mt_collection)
return mt_touch_input_mapping(hdev, hi, field, usage, bit, max,
application);
/*
* some egalax touchscreens have "application == DG_TOUCHSCREEN"
* for the stylus. Overwrite the hid_input application
*/
if (field->physical == HID_DG_STYLUS)
hi->application = HID_DG_STYLUS;
/* let hid-core decide for the others */
return 0;
}
static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_report_data *rdata;
rdata = mt_find_report_data(td, field->report);
if (rdata && rdata->is_mt_collection) {
/* We own these mappings, tell hid-input to ignore them */
return -1;
}
/* let hid-core decide for the others */
return 0;
}
static int mt_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct mt_device *td = hid_get_drvdata(hid);
struct mt_report_data *rdata;
rdata = mt_find_report_data(td, field->report);
if (rdata && rdata->is_mt_collection)
return mt_touch_event(hid, field, usage, value);
return 0;
}
static void mt_report(struct hid_device *hid, struct hid_report *report)
{
struct mt_device *td = hid_get_drvdata(hid);
struct hid_field *field = report->field[0];
struct mt_report_data *rdata;
if (!(hid->claimed & HID_CLAIMED_INPUT))
return;
rdata = mt_find_report_data(td, report);
if (rdata && rdata->is_mt_collection)
return mt_touch_report(hid, rdata);
if (field && field->hidinput && field->hidinput->input)
input_sync(field->hidinput->input);
}
static bool mt_need_to_apply_feature(struct hid_device *hdev,
struct hid_field *field,
struct hid_usage *usage,
enum latency_mode latency,
bool surface_switch,
bool button_switch,
bool *inputmode_found)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_class *cls = &td->mtclass;
struct hid_report *report = field->report;
unsigned int index = usage->usage_index;
char *buf;
u32 report_len;
int max;
switch (usage->hid) {
case HID_DG_INPUTMODE:
/*
* Some elan panels wrongly declare 2 input mode features,
* and silently ignore when we set the value in the second
* field. Skip the second feature and hope for the best.
*/
if (*inputmode_found)
return false;
if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
report_len = hid_report_len(report);
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf) {
hid_err(hdev,
"failed to allocate buffer for report\n");
return false;
}
hid_hw_raw_request(hdev, report->id, buf, report_len,
HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
kfree(buf);
}
field->value[index] = td->inputmode_value;
*inputmode_found = true;
return true;
case HID_DG_CONTACTMAX:
if (cls->maxcontacts) {
max = min_t(int, field->logical_maximum,
cls->maxcontacts);
if (field->value[index] != max) {
field->value[index] = max;
return true;
}
}
break;
case HID_DG_LATENCYMODE:
field->value[index] = latency;
return true;
case HID_DG_SURFACESWITCH:
field->value[index] = surface_switch;
return true;
case HID_DG_BUTTONSWITCH:
field->value[index] = button_switch;
return true;
}
return false; /* no need to update the report */
}
static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency,
bool surface_switch, bool button_switch)
{
struct hid_report_enum *rep_enum;
struct hid_report *rep;
struct hid_usage *usage;
int i, j;
bool update_report;
bool inputmode_found = false;
rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list) {
update_report = false;
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];
if (mt_need_to_apply_feature(hdev,
rep->field[i],
usage,
latency,
surface_switch,
button_switch,
&inputmode_found))
update_report = true;
}
}
if (update_report)
hid_hw_request(hdev, rep, HID_REQ_SET_REPORT);
}
}
static void mt_post_parse_default_settings(struct mt_device *td,
struct mt_application *app)
{
__s32 quirks = app->quirks;
/* unknown serial device needs special quirks */
if (list_is_singular(&app->mt_usages)) {
quirks |= MT_QUIRK_ALWAYS_VALID;
quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
}
app->quirks = quirks;
}
static void mt_post_parse(struct mt_device *td, struct mt_application *app)
{
if (!app->have_contact_count)
app->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
}
static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct mt_device *td = hid_get_drvdata(hdev);
const char *suffix = NULL;
struct mt_report_data *rdata;
struct mt_application *mt_application = NULL;
struct hid_report *report;
int ret;
list_for_each_entry(report, &hi->reports, hidinput_list) {
rdata = mt_find_report_data(td, report);
if (!rdata) {
hid_err(hdev, "failed to allocate data for report\n");
return -ENOMEM;
}
mt_application = rdata->application;
if (rdata->is_mt_collection) {
ret = mt_touch_input_configured(hdev, hi,
mt_application);
if (ret)
return ret;
}
}
switch (hi->application) {
case HID_GD_KEYBOARD:
case HID_GD_KEYPAD:
case HID_GD_MOUSE:
case HID_DG_TOUCHPAD:
case HID_GD_SYSTEM_CONTROL:
case HID_CP_CONSUMER_CONTROL:
case HID_GD_WIRELESS_RADIO_CTLS:
case HID_GD_SYSTEM_MULTIAXIS:
/* already handled by hid core */
break;
case HID_DG_TOUCHSCREEN:
/* we do not set suffix = "Touchscreen" */
hi->input->name = hdev->name;
break;
case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
suffix = "Custom Media Keys";
break;
case HID_DG_STYLUS:
/* force BTN_STYLUS to allow tablet matching in udev */
__set_bit(BTN_STYLUS, hi->input->keybit);
break;
default:
suffix = "UNKNOWN";
break;
}
if (suffix)
hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", hdev->name, suffix);
return 0;
}
static void mt_fix_const_field(struct hid_field *field, unsigned int usage)
{
if (field->usage[0].hid != usage ||
!(field->flags & HID_MAIN_ITEM_CONSTANT))
return;
field->flags &= ~HID_MAIN_ITEM_CONSTANT;
field->flags |= HID_MAIN_ITEM_VARIABLE;
}
static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage)
{
struct hid_report *report;
int i;
list_for_each_entry(report,
&hdev->report_enum[HID_INPUT_REPORT].report_list,
list) {
if (!report->maxfield)
continue;
for (i = 0; i < report->maxfield; i++)
if (report->field[i]->maxusage >= 1)
mt_fix_const_field(report->field[i], usage);
}
}
static void mt_release_contacts(struct hid_device *hid)
{
struct hid_input *hidinput;
struct mt_application *application;
struct mt_device *td = hid_get_drvdata(hid);
list_for_each_entry(hidinput, &hid->inputs, list) {
struct input_dev *input_dev = hidinput->input;
struct input_mt *mt = input_dev->mt;
int i;
if (mt) {
for (i = 0; i < mt->num_slots; i++) {
input_mt_slot(input_dev, i);
input_mt_report_slot_inactive(input_dev);
}
input_mt_sync_frame(input_dev);
input_sync(input_dev);
}
}
list_for_each_entry(application, &td->applications, list) {
application->num_received = 0;
}
}
static void mt_expired_timeout(struct timer_list *t)
{
struct mt_device *td = from_timer(td, t, release_timer);
struct hid_device *hdev = td->hdev;
/*
* An input report came in just before we release the sticky fingers,
* it will take care of the sticky fingers.
*/
if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
return;
if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
mt_release_contacts(hdev);
clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
}
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret, i;
struct mt_device *td;
const struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
for (i = 0; mt_classes[i].name ; i++) {
if (id->driver_data == mt_classes[i].name) {
mtclass = &(mt_classes[i]);
break;
}
}
td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
if (!td) {
dev_err(&hdev->dev, "cannot allocate multitouch data\n");
return -ENOMEM;
}
td->hdev = hdev;
td->mtclass = *mtclass;
td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
hid_set_drvdata(hdev, td);
INIT_LIST_HEAD(&td->applications);
INIT_LIST_HEAD(&td->reports);
if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
td->serial_maybe = true;
/* Orientation is inverted if the X or Y axes are
* flipped, but normalized if both are inverted.
*/
if (hdev->quirks & (HID_QUIRK_X_INVERT | HID_QUIRK_Y_INVERT) &&
!((hdev->quirks & HID_QUIRK_X_INVERT)
&& (hdev->quirks & HID_QUIRK_Y_INVERT)))
td->mtclass.quirks = MT_QUIRK_ORIENTATION_INVERT;
/* This allows the driver to correctly support devices
* that emit events over several HID messages.
*/
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
/*
* This allows the driver to handle different input sensors
* that emits events through different applications on the same HID
* device.
*/
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
if (id->group != HID_GROUP_MULTITOUCH_WIN_8)
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
if (mtclass->quirks & MT_QUIRK_FORCE_MULTI_INPUT) {
hdev->quirks &= ~HID_QUIRK_INPUT_PER_APP;
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
}
timer_setup(&td->release_timer, mt_expired_timeout, 0);
ret = hid_parse(hdev);
if (ret != 0)
return ret;
if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID)
mt_fix_const_fields(hdev, HID_DG_CONTACTID);
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
return ret;
ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
if (ret)
dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
hdev->name);
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
return 0;
}
#ifdef CONFIG_PM
static int mt_suspend(struct hid_device *hdev, pm_message_t state)
{
struct mt_device *td = hid_get_drvdata(hdev);
/* High latency is desirable for power savings during S3/S0ix */
if ((td->mtclass.quirks & MT_QUIRK_DISABLE_WAKEUP) ||
!hid_hw_may_wakeup(hdev))
mt_set_modes(hdev, HID_LATENCY_HIGH, false, false);
else
mt_set_modes(hdev, HID_LATENCY_HIGH, true, true);
return 0;
}
static int mt_reset_resume(struct hid_device *hdev)
{
mt_release_contacts(hdev);
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
return 0;
}
static int mt_resume(struct hid_device *hdev)
{
/* Some Elan legacy devices require SET_IDLE to be set on resume.
* It should be safe to send it to other devices too.
* Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
return 0;
}
#endif
static void mt_remove(struct hid_device *hdev)
{
struct mt_device *td = hid_get_drvdata(hdev);
del_timer_sync(&td->release_timer);
sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
hid_hw_stop(hdev);
}
/*
* This list contains only:
* - VID/PID of products not working with the default multitouch handling
* - 2 generic rules.
* So there is no point in adding here any device with MT_CLS_DEFAULT.
*/
static const struct hid_device_id mt_devices[] = {
/* 3M panels */
{ .driver_data = MT_CLS_3M,
MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M1968) },
{ .driver_data = MT_CLS_3M,
MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M2256) },
{ .driver_data = MT_CLS_3M,
MT_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M3266) },
/* Anton devices */
{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
USB_DEVICE_ID_ANTON_TOUCH_PAD) },
/* Asus T101HA */
{ .driver_data = MT_CLS_WIN_8_DISABLE_WAKEUP,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) },
/* Asus T304UA */
{ .driver_data = MT_CLS_ASUS,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) },
/* Atmel panels */
{ .driver_data = MT_CLS_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
/* Baanto multitouch devices */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
USB_DEVICE_ID_BAANTO_MT_190W2) },
/* Cando panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
/* Chunghwa Telecom touch panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
/* CJTouch panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
/* CVTouch panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
USB_DEVICE_ID_CVTOUCH_SCREEN) },
/* eGalax devices (SAW) */
{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER) },
/* eGalax devices (resistive) */
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
/* eGalax devices (capacitive) */
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
{ .driver_data = MT_CLS_EGALAX_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
{ .driver_data = MT_CLS_EGALAX,
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002) },
/* Elan devices */
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ELAN, 0x313a) },
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ELAN, 0x3148) },
/* Elitegroup panel */
{ .driver_data = MT_CLS_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
USB_DEVICE_ID_ELITEGROUP_05D8) },
/* Flatfrog Panels */
{ .driver_data = MT_CLS_FLATFROG,
MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
USB_DEVICE_ID_MULTITOUCH_3200) },
/* FocalTech Panels */
{ .driver_data = MT_CLS_SERIAL,
MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
/* GeneralTouch panel */
{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
/* Gametel game controller */
{ .driver_data = MT_CLS_NSMU,
MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
USB_DEVICE_ID_GAMETEL_MT_MODE) },
/* GoodTouch panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
USB_DEVICE_ID_GOODTOUCH_000f) },
/* Hanvon panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
/* Ilitek dual touch panel */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
USB_DEVICE_ID_ILITEK_MULTITOUCH) },
/* LG Melfas panel */
{ .driver_data = MT_CLS_LG,
HID_USB_DEVICE(USB_VENDOR_ID_LG,
USB_DEVICE_ID_LG_MELFAS_MT) },
{ .driver_data = MT_CLS_LG,
HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC,
USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) },
/* Lenovo X1 TAB Gen 2 */
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_LENOVO,
USB_DEVICE_ID_LENOVO_X1_TAB) },
/* Lenovo X1 TAB Gen 3 */
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_LENOVO,
USB_DEVICE_ID_LENOVO_X1_TAB3) },
/* Lenovo X12 TAB Gen 1 */
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_LENOVO,
USB_DEVICE_ID_LENOVO_X12_TAB) },
/* MosArt panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUS_T91MT)},
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
/* Novatek Panel */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
USB_DEVICE_ID_NOVATEK_PCT) },
/* Ntrig Panel */
{ .driver_data = MT_CLS_NSMU,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_NTRIG, 0x1b05) },
/* Panasonic panels */
{ .driver_data = MT_CLS_PANASONIC,
MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
USB_DEVICE_ID_PANABOARD_UBT780) },
{ .driver_data = MT_CLS_PANASONIC,
MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
USB_DEVICE_ID_PANABOARD_UBT880) },
/* PixArt optical touch screen */
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
/* PixCir-based panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
/* Quanta-based panels */
{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
/* Razer touchpads */
{ .driver_data = MT_CLS_RAZER_BLADE_STEALTH,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_SYNAPTICS, 0x8323) },
/* Smart Tech panels */
{ .driver_data = MT_CLS_SMART_TECH,
MT_USB_DEVICE(0x0b8c, 0x0092)},
/* Stantum panels */
{ .driver_data = MT_CLS_CONFIDENCE,
MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
USB_DEVICE_ID_MTP_STM)},
/* Synaptics devices */
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_SYNAPTICS, 0xce08) },
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_SYNAPTICS, 0xce09) },
/* TopSeed panels */
{ .driver_data = MT_CLS_TOPSEED,
MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
/* Touch International panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
/* Unitec panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
/* VTL panels */
{ .driver_data = MT_CLS_VTL,
MT_USB_DEVICE(USB_VENDOR_ID_VTL,
USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
/* Winbond Electronics Corp. */
{ .driver_data = MT_CLS_WIN_8_NO_STICKY_FINGERS,
HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_WINBOND, USB_DEVICE_ID_TSTP_MTOUCH) },
/* Wistron panels */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
/* XAT */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XAT,
USB_DEVICE_ID_XAT_CSR) },
/* Xiroku */
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX1) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX1) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR1) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_SPX2) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_MPX2) },
{ .driver_data = MT_CLS_NSMU,
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
USB_DEVICE_ID_XIROKU_CSR2) },
/* Google MT devices */
{ .driver_data = MT_CLS_GOOGLE,
HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) },
{ .driver_data = MT_CLS_GOOGLE,
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_GOOGLE,
USB_DEVICE_ID_GOOGLE_WHISKERS) },
/* Generic MT device */
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
/* Generic Win 8 certified MT device */
{ .driver_data = MT_CLS_WIN_8,
HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
HID_ANY_ID, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, mt_devices);
static const struct hid_usage_id mt_grabbed_usages[] = {
{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
};
static struct hid_driver mt_driver = {
.name = "hid-multitouch",
.id_table = mt_devices,
.probe = mt_probe,
.remove = mt_remove,
.input_mapping = mt_input_mapping,
.input_mapped = mt_input_mapped,
.input_configured = mt_input_configured,
.feature_mapping = mt_feature_mapping,
.usage_table = mt_grabbed_usages,
.event = mt_event,
.report = mt_report,
#ifdef CONFIG_PM
.suspend = mt_suspend,
.reset_resume = mt_reset_resume,
.resume = mt_resume,
#endif
};
module_hid_driver(mt_driver);
| linux-master | drivers/hid/hid-multitouch.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for N-Trig touchscreens
*
* Copyright (c) 2008-2010 Rafi Rubin
* Copyright (c) 2009-2010 Stephane Chatty
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/usb.h>
#include "usbhid/usbhid.h"
#include <linux/module.h>
#include <linux/slab.h>
#include "hid-ids.h"
#define NTRIG_DUPLICATE_USAGES 0x001
static unsigned int min_width;
module_param(min_width, uint, 0644);
MODULE_PARM_DESC(min_width, "Minimum touch contact width to accept.");
static unsigned int min_height;
module_param(min_height, uint, 0644);
MODULE_PARM_DESC(min_height, "Minimum touch contact height to accept.");
static unsigned int activate_slack = 1;
module_param(activate_slack, uint, 0644);
MODULE_PARM_DESC(activate_slack, "Number of touch frames to ignore at "
"the start of touch input.");
static unsigned int deactivate_slack = 4;
module_param(deactivate_slack, uint, 0644);
MODULE_PARM_DESC(deactivate_slack, "Number of empty frames to ignore before "
"deactivating touch.");
static unsigned int activation_width = 64;
module_param(activation_width, uint, 0644);
MODULE_PARM_DESC(activation_width, "Width threshold to immediately start "
"processing touch events.");
static unsigned int activation_height = 32;
module_param(activation_height, uint, 0644);
MODULE_PARM_DESC(activation_height, "Height threshold to immediately start "
"processing touch events.");
struct ntrig_data {
/* Incoming raw values for a single contact */
__u16 x, y, w, h;
__u16 id;
bool tipswitch;
bool confidence;
bool first_contact_touch;
bool reading_mt;
__u8 mt_footer[4];
__u8 mt_foot_count;
/* The current activation state. */
__s8 act_state;
/* Empty frames to ignore before recognizing the end of activity */
__s8 deactivate_slack;
/* Frames to ignore before acknowledging the start of activity */
__s8 activate_slack;
/* Minimum size contact to accept */
__u16 min_width;
__u16 min_height;
/* Threshold to override activation slack */
__u16 activation_width;
__u16 activation_height;
__u16 sensor_logical_width;
__u16 sensor_logical_height;
__u16 sensor_physical_width;
__u16 sensor_physical_height;
};
/*
* This function converts the 4 byte raw firmware code into
* a string containing 5 comma separated numbers.
*/
static int ntrig_version_string(unsigned char *raw, char *buf)
{
__u8 a = (raw[1] & 0x0e) >> 1;
__u8 b = (raw[0] & 0x3c) >> 2;
__u8 c = ((raw[0] & 0x03) << 3) | ((raw[3] & 0xe0) >> 5);
__u8 d = ((raw[3] & 0x07) << 3) | ((raw[2] & 0xe0) >> 5);
__u8 e = raw[2] & 0x07;
/*
* As yet unmapped bits:
* 0b11000000 0b11110001 0b00011000 0b00011000
*/
return sprintf(buf, "%u.%u.%u.%u.%u", a, b, c, d, e);
}
static inline int ntrig_get_mode(struct hid_device *hdev)
{
struct hid_report *report = hdev->report_enum[HID_FEATURE_REPORT].
report_id_hash[0x0d];
if (!report || report->maxfield < 1 ||
report->field[0]->report_count < 1)
return -EINVAL;
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
hid_hw_wait(hdev);
return (int)report->field[0]->value[0];
}
static inline void ntrig_set_mode(struct hid_device *hdev, const int mode)
{
struct hid_report *report;
__u8 mode_commands[4] = { 0xe, 0xf, 0x1b, 0x10 };
if (mode < 0 || mode > 3)
return;
report = hdev->report_enum[HID_FEATURE_REPORT].
report_id_hash[mode_commands[mode]];
if (!report)
return;
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
}
static void ntrig_report_version(struct hid_device *hdev)
{
int ret;
char buf[20];
struct usb_device *usb_dev = hid_to_usb_dev(hdev);
unsigned char *data = kmalloc(8, GFP_KERNEL);
if (!data)
goto err_free;
ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
USB_REQ_CLEAR_FEATURE,
USB_TYPE_CLASS | USB_RECIP_INTERFACE |
USB_DIR_IN,
0x30c, 1, data, 8,
USB_CTRL_SET_TIMEOUT);
if (ret == 8) {
ret = ntrig_version_string(&data[2], buf);
hid_info(hdev, "Firmware version: %s (%02x%02x %02x%02x)\n",
buf, data[2], data[3], data[4], data[5]);
}
err_free:
kfree(data);
}
static ssize_t show_phys_width(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->sensor_physical_width);
}
static DEVICE_ATTR(sensor_physical_width, S_IRUGO, show_phys_width, NULL);
static ssize_t show_phys_height(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->sensor_physical_height);
}
static DEVICE_ATTR(sensor_physical_height, S_IRUGO, show_phys_height, NULL);
static ssize_t show_log_width(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->sensor_logical_width);
}
static DEVICE_ATTR(sensor_logical_width, S_IRUGO, show_log_width, NULL);
static ssize_t show_log_height(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->sensor_logical_height);
}
static DEVICE_ATTR(sensor_logical_height, S_IRUGO, show_log_height, NULL);
static ssize_t show_min_width(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->min_width *
nd->sensor_physical_width /
nd->sensor_logical_width);
}
static ssize_t set_min_width(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val > nd->sensor_physical_width)
return -EINVAL;
nd->min_width = val * nd->sensor_logical_width /
nd->sensor_physical_width;
return count;
}
static DEVICE_ATTR(min_width, S_IWUSR | S_IRUGO, show_min_width, set_min_width);
static ssize_t show_min_height(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->min_height *
nd->sensor_physical_height /
nd->sensor_logical_height);
}
static ssize_t set_min_height(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val > nd->sensor_physical_height)
return -EINVAL;
nd->min_height = val * nd->sensor_logical_height /
nd->sensor_physical_height;
return count;
}
static DEVICE_ATTR(min_height, S_IWUSR | S_IRUGO, show_min_height,
set_min_height);
static ssize_t show_activate_slack(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->activate_slack);
}
static ssize_t set_activate_slack(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val > 0x7f)
return -EINVAL;
nd->activate_slack = val;
return count;
}
static DEVICE_ATTR(activate_slack, S_IWUSR | S_IRUGO, show_activate_slack,
set_activate_slack);
static ssize_t show_activation_width(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->activation_width *
nd->sensor_physical_width /
nd->sensor_logical_width);
}
static ssize_t set_activation_width(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val > nd->sensor_physical_width)
return -EINVAL;
nd->activation_width = val * nd->sensor_logical_width /
nd->sensor_physical_width;
return count;
}
static DEVICE_ATTR(activation_width, S_IWUSR | S_IRUGO, show_activation_width,
set_activation_width);
static ssize_t show_activation_height(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", nd->activation_height *
nd->sensor_physical_height /
nd->sensor_logical_height);
}
static ssize_t set_activation_height(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
if (val > nd->sensor_physical_height)
return -EINVAL;
nd->activation_height = val * nd->sensor_logical_height /
nd->sensor_physical_height;
return count;
}
static DEVICE_ATTR(activation_height, S_IWUSR | S_IRUGO,
show_activation_height, set_activation_height);
static ssize_t show_deactivate_slack(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
return sprintf(buf, "%d\n", -nd->deactivate_slack);
}
static ssize_t set_deactivate_slack(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct ntrig_data *nd = hid_get_drvdata(hdev);
unsigned long val;
if (kstrtoul(buf, 0, &val))
return -EINVAL;
/*
* No more than 8 terminal frames have been observed so far
* and higher slack is highly likely to leave the single
* touch emulation stuck down.
*/
if (val > 7)
return -EINVAL;
nd->deactivate_slack = -val;
return count;
}
static DEVICE_ATTR(deactivate_slack, S_IWUSR | S_IRUGO, show_deactivate_slack,
set_deactivate_slack);
static struct attribute *sysfs_attrs[] = {
&dev_attr_sensor_physical_width.attr,
&dev_attr_sensor_physical_height.attr,
&dev_attr_sensor_logical_width.attr,
&dev_attr_sensor_logical_height.attr,
&dev_attr_min_height.attr,
&dev_attr_min_width.attr,
&dev_attr_activate_slack.attr,
&dev_attr_activation_width.attr,
&dev_attr_activation_height.attr,
&dev_attr_deactivate_slack.attr,
NULL
};
static const struct attribute_group ntrig_attribute_group = {
.attrs = sysfs_attrs
};
/*
* this driver is aimed at two firmware versions in circulation:
* - dual pen/finger single touch
* - finger multitouch, pen not working
*/
static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct ntrig_data *nd = hid_get_drvdata(hdev);
/* No special mappings needed for the pen and single touch */
if (field->physical)
return 0;
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_X);
input_set_abs_params(hi->input, ABS_X,
field->logical_minimum,
field->logical_maximum, 0, 0);
if (!nd->sensor_logical_width) {
nd->sensor_logical_width =
field->logical_maximum -
field->logical_minimum;
nd->sensor_physical_width =
field->physical_maximum -
field->physical_minimum;
nd->activation_width = activation_width *
nd->sensor_logical_width /
nd->sensor_physical_width;
nd->min_width = min_width *
nd->sensor_logical_width /
nd->sensor_physical_width;
}
return 1;
case HID_GD_Y:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_Y);
input_set_abs_params(hi->input, ABS_Y,
field->logical_minimum,
field->logical_maximum, 0, 0);
if (!nd->sensor_logical_height) {
nd->sensor_logical_height =
field->logical_maximum -
field->logical_minimum;
nd->sensor_physical_height =
field->physical_maximum -
field->physical_minimum;
nd->activation_height = activation_height *
nd->sensor_logical_height /
nd->sensor_physical_height;
nd->min_height = min_height *
nd->sensor_logical_height /
nd->sensor_physical_height;
}
return 1;
}
return 0;
case HID_UP_DIGITIZER:
switch (usage->hid) {
/* we do not want to map these for now */
case HID_DG_CONTACTID: /* Not trustworthy, squelch for now */
case HID_DG_INPUTMODE:
case HID_DG_DEVICEINDEX:
case HID_DG_CONTACTMAX:
return -1;
/* width/height mapped on TouchMajor/TouchMinor/Orientation */
case HID_DG_WIDTH:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MAJOR);
return 1;
case HID_DG_HEIGHT:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MINOR);
input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
0, 1, 0, 0);
return 1;
}
return 0;
case 0xff000000:
/* we do not want to map these: no input-oriented meaning */
return -1;
}
return 0;
}
static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/* No special mappings needed for the pen and single touch */
if (field->physical)
return 0;
if (usage->type == EV_KEY || usage->type == EV_REL
|| usage->type == EV_ABS)
clear_bit(usage->code, *bit);
return 0;
}
/*
* this function is called upon all reports
* so that we can filter contact point information,
* decide whether we are in multi or single touch mode
* and call input_mt_sync after each point if necessary
*/
static int ntrig_event (struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct ntrig_data *nd = hid_get_drvdata(hid);
struct input_dev *input;
/* Skip processing if not a claimed input */
if (!(hid->claimed & HID_CLAIMED_INPUT))
goto not_claimed_input;
/* This function is being called before the structures are fully
* initialized */
if(!(field->hidinput && field->hidinput->input))
return -EINVAL;
input = field->hidinput->input;
/* No special handling needed for the pen */
if (field->application == HID_DG_PEN)
return 0;
switch (usage->hid) {
case 0xff000001:
/* Tag indicating the start of a multitouch group */
nd->reading_mt = true;
nd->first_contact_touch = false;
break;
case HID_DG_TIPSWITCH:
nd->tipswitch = value;
/* Prevent emission of touch until validated */
return 1;
case HID_DG_CONFIDENCE:
nd->confidence = value;
break;
case HID_GD_X:
nd->x = value;
/* Clear the contact footer */
nd->mt_foot_count = 0;
break;
case HID_GD_Y:
nd->y = value;
break;
case HID_DG_CONTACTID:
nd->id = value;
break;
case HID_DG_WIDTH:
nd->w = value;
break;
case HID_DG_HEIGHT:
nd->h = value;
/*
* when in single touch mode, this is the last
* report received in a finger event. We want
* to emit a normal (X, Y) position
*/
if (!nd->reading_mt) {
/*
* TipSwitch indicates the presence of a
* finger in single touch mode.
*/
input_report_key(input, BTN_TOUCH,
nd->tipswitch);
input_report_key(input, BTN_TOOL_DOUBLETAP,
nd->tipswitch);
input_event(input, EV_ABS, ABS_X, nd->x);
input_event(input, EV_ABS, ABS_Y, nd->y);
}
break;
case 0xff000002:
/*
* we receive this when the device is in multitouch
* mode. The first of the three values tagged with
* this usage tells if the contact point is real
* or a placeholder
*/
/* Shouldn't get more than 4 footer packets, so skip */
if (nd->mt_foot_count >= 4)
break;
nd->mt_footer[nd->mt_foot_count++] = value;
/* if the footer isn't complete break */
if (nd->mt_foot_count != 4)
break;
/* Pen activity signal. */
if (nd->mt_footer[2]) {
/*
* When the pen deactivates touch, we see a
* bogus frame with ContactCount > 0.
* We can
* save a bit of work by ensuring act_state < 0
* even if deactivation slack is turned off.
*/
nd->act_state = deactivate_slack - 1;
nd->confidence = false;
break;
}
/*
* The first footer value indicates the presence of a
* finger.
*/
if (nd->mt_footer[0]) {
/*
* We do not want to process contacts under
* the size threshold, but do not want to
* ignore them for activation state
*/
if (nd->w < nd->min_width ||
nd->h < nd->min_height)
nd->confidence = false;
} else
break;
if (nd->act_state > 0) {
/*
* Contact meets the activation size threshold
*/
if (nd->w >= nd->activation_width &&
nd->h >= nd->activation_height) {
if (nd->id)
/*
* first contact, activate now
*/
nd->act_state = 0;
else {
/*
* avoid corrupting this frame
* but ensure next frame will
* be active
*/
nd->act_state = 1;
break;
}
} else
/*
* Defer adjusting the activation state
* until the end of the frame.
*/
break;
}
/* Discarding this contact */
if (!nd->confidence)
break;
/* emit a normal (X, Y) for the first point only */
if (nd->id == 0) {
/*
* TipSwitch is superfluous in multitouch
* mode. The footer events tell us
* if there is a finger on the screen or
* not.
*/
nd->first_contact_touch = nd->confidence;
input_event(input, EV_ABS, ABS_X, nd->x);
input_event(input, EV_ABS, ABS_Y, nd->y);
}
/* Emit MT events */
input_event(input, EV_ABS, ABS_MT_POSITION_X, nd->x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, nd->y);
/*
* Translate from height and width to size
* and orientation.
*/
if (nd->w > nd->h) {
input_event(input, EV_ABS,
ABS_MT_ORIENTATION, 1);
input_event(input, EV_ABS,
ABS_MT_TOUCH_MAJOR, nd->w);
input_event(input, EV_ABS,
ABS_MT_TOUCH_MINOR, nd->h);
} else {
input_event(input, EV_ABS,
ABS_MT_ORIENTATION, 0);
input_event(input, EV_ABS,
ABS_MT_TOUCH_MAJOR, nd->h);
input_event(input, EV_ABS,
ABS_MT_TOUCH_MINOR, nd->w);
}
input_mt_sync(field->hidinput->input);
break;
case HID_DG_CONTACTCOUNT: /* End of a multitouch group */
if (!nd->reading_mt) /* Just to be sure */
break;
nd->reading_mt = false;
/*
* Activation state machine logic:
*
* Fundamental states:
* state > 0: Inactive
* state <= 0: Active
* state < -deactivate_slack:
* Pen termination of touch
*
* Specific values of interest
* state == activate_slack
* no valid input since the last reset
*
* state == 0
* general operational state
*
* state == -deactivate_slack
* read sufficient empty frames to accept
* the end of input and reset
*/
if (nd->act_state > 0) { /* Currently inactive */
if (value)
/*
* Consider each live contact as
* evidence of intentional activity.
*/
nd->act_state = (nd->act_state > value)
? nd->act_state - value
: 0;
else
/*
* Empty frame before we hit the
* activity threshold, reset.
*/
nd->act_state = nd->activate_slack;
/*
* Entered this block inactive and no
* coordinates sent this frame, so hold off
* on button state.
*/
break;
} else { /* Currently active */
if (value && nd->act_state >=
nd->deactivate_slack)
/*
* Live point: clear accumulated
* deactivation count.
*/
nd->act_state = 0;
else if (nd->act_state <= nd->deactivate_slack)
/*
* We've consumed the deactivation
* slack, time to deactivate and reset.
*/
nd->act_state =
nd->activate_slack;
else { /* Move towards deactivation */
nd->act_state--;
break;
}
}
if (nd->first_contact_touch && nd->act_state <= 0) {
/*
* Check to see if we're ready to start
* emitting touch events.
*
* Note: activation slack will decrease over
* the course of the frame, and it will be
* inconsistent from the start to the end of
* the frame. However if the frame starts
* with slack, first_contact_touch will still
* be 0 and we will not get to this point.
*/
input_report_key(input, BTN_TOOL_DOUBLETAP, 1);
input_report_key(input, BTN_TOUCH, 1);
} else {
input_report_key(input, BTN_TOOL_DOUBLETAP, 0);
input_report_key(input, BTN_TOUCH, 0);
}
break;
default:
/* fall-back to the generic hidinput handling */
return 0;
}
not_claimed_input:
/* we have handled the hidinput part, now remains hiddev */
if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_hid_event)
hid->hiddev_hid_event(hid, field, usage, value);
return 1;
}
static int ntrig_input_configured(struct hid_device *hid,
struct hid_input *hidinput)
{
struct input_dev *input = hidinput->input;
if (hidinput->report->maxfield < 1)
return 0;
switch (hidinput->report->field[0]->application) {
case HID_DG_PEN:
input->name = "N-Trig Pen";
break;
case HID_DG_TOUCHSCREEN:
/* These keys are redundant for fingers, clear them
* to prevent incorrect identification */
__clear_bit(BTN_TOOL_PEN, input->keybit);
__clear_bit(BTN_TOOL_FINGER, input->keybit);
__clear_bit(BTN_0, input->keybit);
__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
/*
* The physical touchscreen (single touch)
* input has a value for physical, whereas
* the multitouch only has logical input
* fields.
*/
input->name = (hidinput->report->field[0]->physical) ?
"N-Trig Touchscreen" :
"N-Trig MultiTouch";
break;
}
return 0;
}
static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct ntrig_data *nd;
struct hid_report *report;
if (id->driver_data)
hdev->quirks |= HID_QUIRK_MULTI_INPUT
| HID_QUIRK_NO_INIT_REPORTS;
nd = kmalloc(sizeof(struct ntrig_data), GFP_KERNEL);
if (!nd) {
hid_err(hdev, "cannot allocate N-Trig data\n");
return -ENOMEM;
}
nd->reading_mt = false;
nd->min_width = 0;
nd->min_height = 0;
nd->activate_slack = activate_slack;
nd->act_state = activate_slack;
nd->deactivate_slack = -deactivate_slack;
nd->sensor_logical_width = 1;
nd->sensor_logical_height = 1;
nd->sensor_physical_width = 1;
nd->sensor_physical_height = 1;
hid_set_drvdata(hdev, nd);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
/* This is needed for devices with more recent firmware versions */
report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0x0a];
if (report) {
/* Let the device settle to ensure the wakeup message gets
* through */
hid_hw_wait(hdev);
hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
/*
* Sanity check: if the current mode is invalid reset it to
* something reasonable.
*/
if (ntrig_get_mode(hdev) >= 4)
ntrig_set_mode(hdev, 3);
}
ntrig_report_version(hdev);
ret = sysfs_create_group(&hdev->dev.kobj,
&ntrig_attribute_group);
if (ret)
hid_err(hdev, "cannot create sysfs group\n");
return 0;
err_free:
kfree(nd);
return ret;
}
static void ntrig_remove(struct hid_device *hdev)
{
sysfs_remove_group(&hdev->dev.kobj,
&ntrig_attribute_group);
hid_hw_stop(hdev);
kfree(hid_get_drvdata(hdev));
}
static const struct hid_device_id ntrig_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18),
.driver_data = NTRIG_DUPLICATE_USAGES },
{ }
};
MODULE_DEVICE_TABLE(hid, ntrig_devices);
static const struct hid_usage_id ntrig_grabbed_usages[] = {
{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 }
};
static struct hid_driver ntrig_driver = {
.name = "ntrig",
.id_table = ntrig_devices,
.probe = ntrig_probe,
.remove = ntrig_remove,
.input_mapping = ntrig_input_mapping,
.input_mapped = ntrig_input_mapped,
.input_configured = ntrig_input_configured,
.usage_table = ntrig_grabbed_usages,
.event = ntrig_event,
};
module_hid_driver(ntrig_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-ntrig.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Isku driver for Linux
*
* Copyright (c) 2011 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Isku is a gamer keyboard 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-isku.h"
static void isku_profile_activated(struct isku_device *isku, uint new_profile)
{
isku->actual_profile = new_profile;
}
static int isku_receive(struct usb_device *usb_dev, uint command,
void *buf, uint size)
{
return roccat_common2_receive(usb_dev, command, buf, size);
}
static int isku_get_actual_profile(struct usb_device *usb_dev)
{
struct isku_actual_profile buf;
int retval;
retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
&buf, sizeof(struct isku_actual_profile));
return retval ? retval : buf.actual_profile;
}
static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
{
struct isku_actual_profile buf;
buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
buf.size = sizeof(struct isku_actual_profile);
buf.actual_profile = new_profile;
return roccat_common2_send_with_status(usb_dev,
ISKU_COMMAND_ACTUAL_PROFILE, &buf,
sizeof(struct isku_actual_profile));
}
static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isku_device *isku =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
}
static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct isku_device *isku;
struct usb_device *usb_dev;
unsigned long profile;
int retval;
struct isku_roccat_report roccat_report;
dev = dev->parent->parent;
isku = 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(&isku->isku_lock);
retval = isku_set_actual_profile(usb_dev, profile);
if (retval) {
mutex_unlock(&isku->isku_lock);
return retval;
}
isku_profile_activated(isku, profile);
roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
roccat_report.data1 = profile + 1;
roccat_report.data2 = 0;
roccat_report.profile = profile + 1;
roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
mutex_unlock(&isku->isku_lock);
return size;
}
static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile,
isku_sysfs_set_actual_profile);
static struct attribute *isku_attrs[] = {
&dev_attr_actual_profile.attr,
NULL,
};
static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
retval = isku_receive(usb_dev, command, buf, count);
mutex_unlock(&isku->isku_lock);
return retval ? retval : count;
}
static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
retval = roccat_common2_send_with_status(usb_dev, command,
(void *)buf, count);
mutex_unlock(&isku->isku_lock);
return retval ? retval : count;
}
#define ISKU_SYSFS_W(thingy, THINGY) \
static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \
struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return isku_sysfs_write(fp, kobj, buf, off, count, \
ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
}
#define ISKU_SYSFS_R(thingy, THINGY) \
static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \
struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return isku_sysfs_read(fp, kobj, buf, off, count, \
ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
}
#define ISKU_SYSFS_RW(thingy, THINGY) \
ISKU_SYSFS_R(thingy, THINGY) \
ISKU_SYSFS_W(thingy, THINGY)
#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
ISKU_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = ISKU_SIZE_ ## THINGY, \
.read = isku_sysfs_read_ ## thingy, \
.write = isku_sysfs_write_ ## thingy \
}
#define ISKU_BIN_ATTR_R(thingy, THINGY) \
ISKU_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0440 }, \
.size = ISKU_SIZE_ ## THINGY, \
.read = isku_sysfs_read_ ## thingy, \
}
#define ISKU_BIN_ATTR_W(thingy, THINGY) \
ISKU_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0220 }, \
.size = ISKU_SIZE_ ## THINGY, \
.write = isku_sysfs_write_ ## thingy \
}
ISKU_BIN_ATTR_RW(macro, MACRO);
ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION);
ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE);
ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA);
ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER);
ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO);
ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK);
ISKU_BIN_ATTR_RW(light, LIGHT);
ISKU_BIN_ATTR_RW(key_mask, KEY_MASK);
ISKU_BIN_ATTR_RW(last_set, LAST_SET);
ISKU_BIN_ATTR_W(talk, TALK);
ISKU_BIN_ATTR_W(talkfx, TALKFX);
ISKU_BIN_ATTR_W(control, CONTROL);
ISKU_BIN_ATTR_W(reset, RESET);
ISKU_BIN_ATTR_R(info, INFO);
static struct bin_attribute *isku_bin_attributes[] = {
&bin_attr_macro,
&bin_attr_keys_function,
&bin_attr_keys_easyzone,
&bin_attr_keys_media,
&bin_attr_keys_thumbster,
&bin_attr_keys_macro,
&bin_attr_keys_capslock,
&bin_attr_light,
&bin_attr_key_mask,
&bin_attr_last_set,
&bin_attr_talk,
&bin_attr_talkfx,
&bin_attr_control,
&bin_attr_reset,
&bin_attr_info,
NULL,
};
static const struct attribute_group isku_group = {
.attrs = isku_attrs,
.bin_attrs = isku_bin_attributes,
};
static const struct attribute_group *isku_groups[] = {
&isku_group,
NULL,
};
static const struct class isku_class = {
.name = "isku",
.dev_groups = isku_groups,
};
static int isku_init_isku_device_struct(struct usb_device *usb_dev,
struct isku_device *isku)
{
int retval;
mutex_init(&isku->isku_lock);
retval = isku_get_actual_profile(usb_dev);
if (retval < 0)
return retval;
isku_profile_activated(isku, retval);
return 0;
}
static int isku_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 isku_device *isku;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= ISKU_USB_INTERFACE_PROTOCOL) {
hid_set_drvdata(hdev, NULL);
return 0;
}
isku = kzalloc(sizeof(*isku), GFP_KERNEL);
if (!isku) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, isku);
retval = isku_init_isku_device_struct(usb_dev, isku);
if (retval) {
hid_err(hdev, "couldn't init struct isku_device\n");
goto exit_free;
}
retval = roccat_connect(&isku_class, hdev,
sizeof(struct isku_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
isku->chrdev_minor = retval;
isku->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(isku);
return retval;
}
static void isku_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct isku_device *isku;
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= ISKU_USB_INTERFACE_PROTOCOL)
return;
isku = hid_get_drvdata(hdev);
if (isku->roccat_claimed)
roccat_disconnect(isku->chrdev_minor);
kfree(isku);
}
static int isku_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 = isku_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install keyboard\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void isku_remove(struct hid_device *hdev)
{
isku_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void isku_keep_values_up_to_date(struct isku_device *isku,
u8 const *data)
{
struct isku_report_button const *button_report;
switch (data[0]) {
case ISKU_REPORT_NUMBER_BUTTON:
button_report = (struct isku_report_button const *)data;
switch (button_report->event) {
case ISKU_REPORT_BUTTON_EVENT_PROFILE:
isku_profile_activated(isku, button_report->data1 - 1);
break;
}
break;
}
}
static void isku_report_to_chrdev(struct isku_device const *isku,
u8 const *data)
{
struct isku_roccat_report roccat_report;
struct isku_report_button const *button_report;
if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
return;
button_report = (struct isku_report_button const *)data;
roccat_report.event = button_report->event;
roccat_report.data1 = button_report->data1;
roccat_report.data2 = button_report->data2;
roccat_report.profile = isku->actual_profile + 1;
roccat_report_event(isku->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int isku_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 isku_device *isku = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= ISKU_USB_INTERFACE_PROTOCOL)
return 0;
if (isku == NULL)
return 0;
isku_keep_values_up_to_date(isku, data);
if (isku->roccat_claimed)
isku_report_to_chrdev(isku, data);
return 0;
}
static const struct hid_device_id isku_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
{ }
};
MODULE_DEVICE_TABLE(hid, isku_devices);
static struct hid_driver isku_driver = {
.name = "isku",
.id_table = isku_devices,
.probe = isku_probe,
.remove = isku_remove,
.raw_event = isku_raw_event
};
static int __init isku_init(void)
{
int retval;
retval = class_register(&isku_class);
if (retval)
return retval;
retval = hid_register_driver(&isku_driver);
if (retval)
class_unregister(&isku_class);
return retval;
}
static void __exit isku_exit(void)
{
hid_unregister_driver(&isku_driver);
class_unregister(&isku_class);
}
module_init(isku_init);
module_exit(isku_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-isku.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Corsair devices
*
* Supported devices:
* - Vengeance K70 Keyboard
* - K70 RAPIDFIRE Keyboard
* - Vengeance K90 Keyboard
* - Scimitar PRO RGB Gaming Mouse
*
* Copyright (c) 2015 Clement Vuchener
* Copyright (c) 2017 Oscar Campos
* Copyright (c) 2017 Aaron Bottegal
*/
/*
*/
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/leds.h>
#include "hid-ids.h"
#define CORSAIR_USE_K90_MACRO (1<<0)
#define CORSAIR_USE_K90_BACKLIGHT (1<<1)
struct k90_led {
struct led_classdev cdev;
int brightness;
struct work_struct work;
bool removed;
};
struct k90_drvdata {
struct k90_led record_led;
};
struct corsair_drvdata {
unsigned long quirks;
struct k90_drvdata *k90;
struct k90_led *backlight;
};
#define K90_GKEY_COUNT 18
static int corsair_usage_to_gkey(unsigned int usage)
{
/* G1 (0xd0) to G16 (0xdf) */
if (usage >= 0xd0 && usage <= 0xdf)
return usage - 0xd0 + 1;
/* G17 (0xe8) to G18 (0xe9) */
if (usage >= 0xe8 && usage <= 0xe9)
return usage - 0xe8 + 17;
return 0;
}
static unsigned short corsair_gkey_map[K90_GKEY_COUNT] = {
BTN_TRIGGER_HAPPY1,
BTN_TRIGGER_HAPPY2,
BTN_TRIGGER_HAPPY3,
BTN_TRIGGER_HAPPY4,
BTN_TRIGGER_HAPPY5,
BTN_TRIGGER_HAPPY6,
BTN_TRIGGER_HAPPY7,
BTN_TRIGGER_HAPPY8,
BTN_TRIGGER_HAPPY9,
BTN_TRIGGER_HAPPY10,
BTN_TRIGGER_HAPPY11,
BTN_TRIGGER_HAPPY12,
BTN_TRIGGER_HAPPY13,
BTN_TRIGGER_HAPPY14,
BTN_TRIGGER_HAPPY15,
BTN_TRIGGER_HAPPY16,
BTN_TRIGGER_HAPPY17,
BTN_TRIGGER_HAPPY18,
};
module_param_array_named(gkey_codes, corsair_gkey_map, ushort, NULL, S_IRUGO);
MODULE_PARM_DESC(gkey_codes, "Key codes for the G-keys");
static unsigned short corsair_record_keycodes[2] = {
BTN_TRIGGER_HAPPY19,
BTN_TRIGGER_HAPPY20
};
module_param_array_named(recordkey_codes, corsair_record_keycodes, ushort,
NULL, S_IRUGO);
MODULE_PARM_DESC(recordkey_codes, "Key codes for the MR (start and stop record) button");
static unsigned short corsair_profile_keycodes[3] = {
BTN_TRIGGER_HAPPY21,
BTN_TRIGGER_HAPPY22,
BTN_TRIGGER_HAPPY23
};
module_param_array_named(profilekey_codes, corsair_profile_keycodes, ushort,
NULL, S_IRUGO);
MODULE_PARM_DESC(profilekey_codes, "Key codes for the profile buttons");
#define CORSAIR_USAGE_SPECIAL_MIN 0xf0
#define CORSAIR_USAGE_SPECIAL_MAX 0xff
#define CORSAIR_USAGE_MACRO_RECORD_START 0xf6
#define CORSAIR_USAGE_MACRO_RECORD_STOP 0xf7
#define CORSAIR_USAGE_PROFILE 0xf1
#define CORSAIR_USAGE_M1 0xf1
#define CORSAIR_USAGE_M2 0xf2
#define CORSAIR_USAGE_M3 0xf3
#define CORSAIR_USAGE_PROFILE_MAX 0xf3
#define CORSAIR_USAGE_META_OFF 0xf4
#define CORSAIR_USAGE_META_ON 0xf5
#define CORSAIR_USAGE_LIGHT 0xfa
#define CORSAIR_USAGE_LIGHT_OFF 0xfa
#define CORSAIR_USAGE_LIGHT_DIM 0xfb
#define CORSAIR_USAGE_LIGHT_MEDIUM 0xfc
#define CORSAIR_USAGE_LIGHT_BRIGHT 0xfd
#define CORSAIR_USAGE_LIGHT_MAX 0xfd
/* USB control protocol */
#define K90_REQUEST_BRIGHTNESS 49
#define K90_REQUEST_MACRO_MODE 2
#define K90_REQUEST_STATUS 4
#define K90_REQUEST_GET_MODE 5
#define K90_REQUEST_PROFILE 20
#define K90_MACRO_MODE_SW 0x0030
#define K90_MACRO_MODE_HW 0x0001
#define K90_MACRO_LED_ON 0x0020
#define K90_MACRO_LED_OFF 0x0040
/*
* LED class devices
*/
#define K90_BACKLIGHT_LED_SUFFIX "::backlight"
#define K90_RECORD_LED_SUFFIX "::record"
static enum led_brightness k90_backlight_get(struct led_classdev *led_cdev)
{
int ret;
struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
struct device *dev = led->cdev.dev->parent;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
int brightness;
char *data;
data = kmalloc(8, GFP_KERNEL);
if (!data)
return -ENOMEM;
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
K90_REQUEST_STATUS,
USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, 0, 0, data, 8,
USB_CTRL_SET_TIMEOUT);
if (ret < 5) {
dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
ret);
ret = -EIO;
goto out;
}
brightness = data[4];
if (brightness < 0 || brightness > 3) {
dev_warn(dev,
"Read invalid backlight brightness: %02hhx.\n",
data[4]);
ret = -EIO;
goto out;
}
ret = brightness;
out:
kfree(data);
return ret;
}
static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev)
{
struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
return led->brightness;
}
static void k90_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct k90_led *led = container_of(led_cdev, struct k90_led, cdev);
led->brightness = brightness;
schedule_work(&led->work);
}
static void k90_backlight_work(struct work_struct *work)
{
int ret;
struct k90_led *led = container_of(work, struct k90_led, work);
struct device *dev;
struct usb_interface *usbif;
struct usb_device *usbdev;
if (led->removed)
return;
dev = led->cdev.dev->parent;
usbif = to_usb_interface(dev->parent);
usbdev = interface_to_usbdev(usbif);
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
K90_REQUEST_BRIGHTNESS,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, led->brightness, 0,
NULL, 0, USB_CTRL_SET_TIMEOUT);
if (ret != 0)
dev_warn(dev, "Failed to set backlight brightness (error: %d).\n",
ret);
}
static void k90_record_led_work(struct work_struct *work)
{
int ret;
struct k90_led *led = container_of(work, struct k90_led, work);
struct device *dev;
struct usb_interface *usbif;
struct usb_device *usbdev;
int value;
if (led->removed)
return;
dev = led->cdev.dev->parent;
usbif = to_usb_interface(dev->parent);
usbdev = interface_to_usbdev(usbif);
if (led->brightness > 0)
value = K90_MACRO_LED_ON;
else
value = K90_MACRO_LED_OFF;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
K90_REQUEST_MACRO_MODE,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, 0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (ret != 0)
dev_warn(dev, "Failed to set record LED state (error: %d).\n",
ret);
}
/*
* Keyboard attributes
*/
static ssize_t k90_show_macro_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
const char *macro_mode;
char *data;
data = kmalloc(2, GFP_KERNEL);
if (!data)
return -ENOMEM;
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
K90_REQUEST_GET_MODE,
USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, 0, 0, data, 2,
USB_CTRL_SET_TIMEOUT);
if (ret < 1) {
dev_warn(dev, "Failed to get K90 initial mode (error %d).\n",
ret);
ret = -EIO;
goto out;
}
switch (data[0]) {
case K90_MACRO_MODE_HW:
macro_mode = "HW";
break;
case K90_MACRO_MODE_SW:
macro_mode = "SW";
break;
default:
dev_warn(dev, "K90 in unknown mode: %02hhx.\n",
data[0]);
ret = -EIO;
goto out;
}
ret = snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
out:
kfree(data);
return ret;
}
static ssize_t k90_store_macro_mode(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int ret;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
__u16 value;
if (strncmp(buf, "SW", 2) == 0)
value = K90_MACRO_MODE_SW;
else if (strncmp(buf, "HW", 2) == 0)
value = K90_MACRO_MODE_HW;
else
return -EINVAL;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
K90_REQUEST_MACRO_MODE,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, value, 0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (ret != 0) {
dev_warn(dev, "Failed to set macro mode.\n");
return ret;
}
return count;
}
static ssize_t k90_show_current_profile(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int ret;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
int current_profile;
char *data;
data = kmalloc(8, GFP_KERNEL);
if (!data)
return -ENOMEM;
ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
K90_REQUEST_STATUS,
USB_DIR_IN | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, 0, 0, data, 8,
USB_CTRL_SET_TIMEOUT);
if (ret < 8) {
dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
ret);
ret = -EIO;
goto out;
}
current_profile = data[7];
if (current_profile < 1 || current_profile > 3) {
dev_warn(dev, "Read invalid current profile: %02hhx.\n",
data[7]);
ret = -EIO;
goto out;
}
ret = snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
out:
kfree(data);
return ret;
}
static ssize_t k90_store_current_profile(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int ret;
struct usb_interface *usbif = to_usb_interface(dev->parent);
struct usb_device *usbdev = interface_to_usbdev(usbif);
int profile;
if (kstrtoint(buf, 10, &profile))
return -EINVAL;
if (profile < 1 || profile > 3)
return -EINVAL;
ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
K90_REQUEST_PROFILE,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_DEVICE, profile, 0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (ret != 0) {
dev_warn(dev, "Failed to change current profile (error %d).\n",
ret);
return ret;
}
return count;
}
static DEVICE_ATTR(macro_mode, 0644, k90_show_macro_mode, k90_store_macro_mode);
static DEVICE_ATTR(current_profile, 0644, k90_show_current_profile,
k90_store_current_profile);
static struct attribute *k90_attrs[] = {
&dev_attr_macro_mode.attr,
&dev_attr_current_profile.attr,
NULL
};
static const struct attribute_group k90_attr_group = {
.attrs = k90_attrs,
};
/*
* Driver functions
*/
static int k90_init_backlight(struct hid_device *dev)
{
int ret;
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
size_t name_sz;
char *name;
drvdata->backlight = kzalloc(sizeof(struct k90_led), GFP_KERNEL);
if (!drvdata->backlight) {
ret = -ENOMEM;
goto fail_backlight_alloc;
}
name_sz =
strlen(dev_name(&dev->dev)) + sizeof(K90_BACKLIGHT_LED_SUFFIX);
name = kzalloc(name_sz, GFP_KERNEL);
if (!name) {
ret = -ENOMEM;
goto fail_name_alloc;
}
snprintf(name, name_sz, "%s" K90_BACKLIGHT_LED_SUFFIX,
dev_name(&dev->dev));
drvdata->backlight->removed = false;
drvdata->backlight->cdev.name = name;
drvdata->backlight->cdev.max_brightness = 3;
drvdata->backlight->cdev.brightness_set = k90_brightness_set;
drvdata->backlight->cdev.brightness_get = k90_backlight_get;
INIT_WORK(&drvdata->backlight->work, k90_backlight_work);
ret = led_classdev_register(&dev->dev, &drvdata->backlight->cdev);
if (ret != 0)
goto fail_register_cdev;
return 0;
fail_register_cdev:
kfree(drvdata->backlight->cdev.name);
fail_name_alloc:
kfree(drvdata->backlight);
drvdata->backlight = NULL;
fail_backlight_alloc:
return ret;
}
static int k90_init_macro_functions(struct hid_device *dev)
{
int ret;
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
struct k90_drvdata *k90;
size_t name_sz;
char *name;
k90 = kzalloc(sizeof(struct k90_drvdata), GFP_KERNEL);
if (!k90) {
ret = -ENOMEM;
goto fail_drvdata;
}
drvdata->k90 = k90;
/* Init LED device for record LED */
name_sz = strlen(dev_name(&dev->dev)) + sizeof(K90_RECORD_LED_SUFFIX);
name = kzalloc(name_sz, GFP_KERNEL);
if (!name) {
ret = -ENOMEM;
goto fail_record_led_alloc;
}
snprintf(name, name_sz, "%s" K90_RECORD_LED_SUFFIX,
dev_name(&dev->dev));
k90->record_led.removed = false;
k90->record_led.cdev.name = name;
k90->record_led.cdev.max_brightness = 1;
k90->record_led.cdev.brightness_set = k90_brightness_set;
k90->record_led.cdev.brightness_get = k90_record_led_get;
INIT_WORK(&k90->record_led.work, k90_record_led_work);
k90->record_led.brightness = 0;
ret = led_classdev_register(&dev->dev, &k90->record_led.cdev);
if (ret != 0)
goto fail_record_led;
/* Init attributes */
ret = sysfs_create_group(&dev->dev.kobj, &k90_attr_group);
if (ret != 0)
goto fail_sysfs;
return 0;
fail_sysfs:
k90->record_led.removed = true;
led_classdev_unregister(&k90->record_led.cdev);
cancel_work_sync(&k90->record_led.work);
fail_record_led:
kfree(k90->record_led.cdev.name);
fail_record_led_alloc:
kfree(k90);
fail_drvdata:
drvdata->k90 = NULL;
return ret;
}
static void k90_cleanup_backlight(struct hid_device *dev)
{
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
if (drvdata->backlight) {
drvdata->backlight->removed = true;
led_classdev_unregister(&drvdata->backlight->cdev);
cancel_work_sync(&drvdata->backlight->work);
kfree(drvdata->backlight->cdev.name);
kfree(drvdata->backlight);
}
}
static void k90_cleanup_macro_functions(struct hid_device *dev)
{
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
struct k90_drvdata *k90 = drvdata->k90;
if (k90) {
sysfs_remove_group(&dev->dev.kobj, &k90_attr_group);
k90->record_led.removed = true;
led_classdev_unregister(&k90->record_led.cdev);
cancel_work_sync(&k90->record_led.work);
kfree(k90->record_led.cdev.name);
kfree(k90);
}
}
static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id)
{
int ret;
unsigned long quirks = id->driver_data;
struct corsair_drvdata *drvdata;
struct usb_interface *usbif;
if (!hid_is_usb(dev))
return -EINVAL;
usbif = to_usb_interface(dev->dev.parent);
drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata),
GFP_KERNEL);
if (drvdata == NULL)
return -ENOMEM;
drvdata->quirks = quirks;
hid_set_drvdata(dev, drvdata);
ret = hid_parse(dev);
if (ret != 0) {
hid_err(dev, "parse failed\n");
return ret;
}
ret = hid_hw_start(dev, HID_CONNECT_DEFAULT);
if (ret != 0) {
hid_err(dev, "hw start failed\n");
return ret;
}
if (usbif->cur_altsetting->desc.bInterfaceNumber == 0) {
if (quirks & CORSAIR_USE_K90_MACRO) {
ret = k90_init_macro_functions(dev);
if (ret != 0)
hid_warn(dev, "Failed to initialize K90 macro functions.\n");
}
if (quirks & CORSAIR_USE_K90_BACKLIGHT) {
ret = k90_init_backlight(dev);
if (ret != 0)
hid_warn(dev, "Failed to initialize K90 backlight.\n");
}
}
return 0;
}
static void corsair_remove(struct hid_device *dev)
{
k90_cleanup_macro_functions(dev);
k90_cleanup_backlight(dev);
hid_hw_stop(dev);
}
static int corsair_event(struct hid_device *dev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct corsair_drvdata *drvdata = hid_get_drvdata(dev);
if (!drvdata->k90)
return 0;
switch (usage->hid & HID_USAGE) {
case CORSAIR_USAGE_MACRO_RECORD_START:
drvdata->k90->record_led.brightness = 1;
break;
case CORSAIR_USAGE_MACRO_RECORD_STOP:
drvdata->k90->record_led.brightness = 0;
break;
default:
break;
}
return 0;
}
static int corsair_input_mapping(struct hid_device *dev,
struct hid_input *input,
struct hid_field *field,
struct hid_usage *usage, unsigned long **bit,
int *max)
{
int gkey;
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD)
return 0;
gkey = corsair_usage_to_gkey(usage->hid & HID_USAGE);
if (gkey != 0) {
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_gkey_map[gkey - 1]);
return 1;
}
if ((usage->hid & HID_USAGE) >= CORSAIR_USAGE_SPECIAL_MIN &&
(usage->hid & HID_USAGE) <= CORSAIR_USAGE_SPECIAL_MAX) {
switch (usage->hid & HID_USAGE) {
case CORSAIR_USAGE_MACRO_RECORD_START:
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_record_keycodes[0]);
return 1;
case CORSAIR_USAGE_MACRO_RECORD_STOP:
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_record_keycodes[1]);
return 1;
case CORSAIR_USAGE_M1:
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_profile_keycodes[0]);
return 1;
case CORSAIR_USAGE_M2:
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_profile_keycodes[1]);
return 1;
case CORSAIR_USAGE_M3:
hid_map_usage_clear(input, usage, bit, max, EV_KEY,
corsair_profile_keycodes[2]);
return 1;
default:
return -1;
}
}
return 0;
}
/*
* The report descriptor of some of the Corsair gaming mice is
* non parseable as they define two consecutive Logical Minimum for
* the Usage Page (Consumer) in rdescs bytes 75 and 77 being 77 0x16
* that should be obviousy 0x26 for Logical Magimum of 16 bits. This
* prevents poper parsing of the report descriptor due Logical
* Minimum being larger than Logical Maximum.
*
* This driver fixes the report descriptor for:
* - USB ID 1b1c:1b34, sold as GLAIVE RGB Gaming mouse
* - USB ID 1b1c:1b3e, sold as Scimitar RGB Pro Gaming mouse
*/
static __u8 *corsair_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) {
/*
* Corsair GLAIVE RGB and Scimitar RGB Pro report descriptor is
* broken and defines two different Logical Minimum for the
* Consumer Application. The byte 77 should be a 0x26 defining
* a 16 bits integer for the Logical Maximum but it is a 0x16
* instead (Logical Minimum)
*/
switch (hdev->product) {
case USB_DEVICE_ID_CORSAIR_GLAIVE_RGB:
case USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB:
if (*rsize >= 172 && rdesc[75] == 0x15 && rdesc[77] == 0x16
&& rdesc[78] == 0xff && rdesc[79] == 0x0f) {
hid_info(hdev, "Fixing up report descriptor\n");
rdesc[77] = 0x26;
}
break;
}
}
return rdesc;
}
static const struct hid_device_id corsair_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90),
.driver_data = CORSAIR_USE_K90_MACRO |
CORSAIR_USE_K90_BACKLIGHT },
{ 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) },
/*
* Vengeance K70 and K70 RAPIDFIRE share product IDs.
*/
{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
USB_DEVICE_ID_CORSAIR_K70R) },
{}
};
MODULE_DEVICE_TABLE(hid, corsair_devices);
static struct hid_driver corsair_driver = {
.name = "corsair",
.id_table = corsair_devices,
.probe = corsair_probe,
.event = corsair_event,
.remove = corsair_remove,
.input_mapping = corsair_input_mapping,
.report_fixup = corsair_mouse_report_fixup,
};
module_hid_driver(corsair_driver);
MODULE_LICENSE("GPL");
/* Original K90 driver author */
MODULE_AUTHOR("Clement Vuchener");
/* Scimitar PRO RGB driver author */
MODULE_AUTHOR("Oscar Campos");
MODULE_DESCRIPTION("HID driver for Corsair devices");
| linux-master | drivers/hid/hid-corsair.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/input.h>
#include "hid-ids.h"
#include <linux/fb.h>
#include <linux/vmalloc.h>
#include <linux/backlight.h>
#include <linux/lcd.h>
#include <linux/leds.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/completion.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <media/rc-core.h>
#include "hid-picolcd.h"
int picolcd_raw_cir(struct picolcd_data *data,
struct hid_report *report, u8 *raw_data, int size)
{
unsigned long flags;
int i, w, sz;
struct ir_raw_event rawir = {};
/* ignore if rc_dev is NULL or status is shunned */
spin_lock_irqsave(&data->lock, flags);
if (!data->rc_dev || (data->status & PICOLCD_CIR_SHUN)) {
spin_unlock_irqrestore(&data->lock, flags);
return 1;
}
spin_unlock_irqrestore(&data->lock, flags);
/* PicoLCD USB packets contain 16-bit intervals in network order,
* with value negated for pulse. Intervals are in microseconds.
*
* Note: some userspace LIRC code for PicoLCD says negated values
* for space - is it a matter of IR chip? (pulse for my TSOP2236)
*
* In addition, the first interval seems to be around 15000 + base
* interval for non-first report of IR data - thus the quirk below
* to get RC_CODE to understand Sony and JVC remotes I have at hand
*/
sz = size > 0 ? min((int)raw_data[0], size-1) : 0;
for (i = 0; i+1 < sz; i += 2) {
w = (raw_data[i] << 8) | (raw_data[i+1]);
rawir.pulse = !!(w & 0x8000);
rawir.duration = rawir.pulse ? (65536 - w) : w;
/* Quirk!! - see above */
if (i == 0 && rawir.duration > 15000)
rawir.duration -= 15000;
ir_raw_event_store(data->rc_dev, &rawir);
}
ir_raw_event_handle(data->rc_dev);
return 1;
}
static int picolcd_cir_open(struct rc_dev *dev)
{
struct picolcd_data *data = dev->priv;
unsigned long flags;
spin_lock_irqsave(&data->lock, flags);
data->status &= ~PICOLCD_CIR_SHUN;
spin_unlock_irqrestore(&data->lock, flags);
return 0;
}
static void picolcd_cir_close(struct rc_dev *dev)
{
struct picolcd_data *data = dev->priv;
unsigned long flags;
spin_lock_irqsave(&data->lock, flags);
data->status |= PICOLCD_CIR_SHUN;
spin_unlock_irqrestore(&data->lock, flags);
}
/* initialize CIR input device */
int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
{
struct rc_dev *rdev;
int ret = 0;
rdev = rc_allocate_device(RC_DRIVER_IR_RAW);
if (!rdev)
return -ENOMEM;
rdev->priv = data;
rdev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
rdev->open = picolcd_cir_open;
rdev->close = picolcd_cir_close;
rdev->device_name = data->hdev->name;
rdev->input_phys = data->hdev->phys;
rdev->input_id.bustype = data->hdev->bus;
rdev->input_id.vendor = data->hdev->vendor;
rdev->input_id.product = data->hdev->product;
rdev->input_id.version = data->hdev->version;
rdev->dev.parent = &data->hdev->dev;
rdev->driver_name = PICOLCD_NAME;
rdev->map_name = RC_MAP_RC6_MCE;
rdev->timeout = MS_TO_US(100);
rdev->rx_resolution = 1;
ret = rc_register_device(rdev);
if (ret)
goto err;
data->rc_dev = rdev;
return 0;
err:
rc_free_device(rdev);
return ret;
}
void picolcd_exit_cir(struct picolcd_data *data)
{
struct rc_dev *rdev = data->rc_dev;
data->rc_dev = NULL;
rc_unregister_device(rdev);
}
| linux-master | drivers/hid/hid-picolcd_cir.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some gyration "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) 2008 Jiri Slaby
* Copyright (c) 2006-2008 Jiri Kosina
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define gy_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int gyration_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;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
/* Reported on Gyration MCE Remote */
case 0x00d: gy_map_key_clear(KEY_HOME); break;
case 0x024: gy_map_key_clear(KEY_DVD); break;
case 0x025: gy_map_key_clear(KEY_PVR); break;
case 0x046: gy_map_key_clear(KEY_MEDIA); break;
case 0x047: gy_map_key_clear(KEY_MP3); break;
case 0x048: gy_map_key_clear(KEY_MEDIA); break;
case 0x049: gy_map_key_clear(KEY_CAMERA); break;
case 0x04a: gy_map_key_clear(KEY_VIDEO); break;
case 0x05a: gy_map_key_clear(KEY_TEXT); break;
case 0x05b: gy_map_key_clear(KEY_RED); break;
case 0x05c: gy_map_key_clear(KEY_GREEN); break;
case 0x05d: gy_map_key_clear(KEY_YELLOW); break;
case 0x05e: gy_map_key_clear(KEY_BLUE); break;
default:
return 0;
}
return 1;
}
static int gyration_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
return 0;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
(usage->hid & 0xff) == 0x82) {
struct input_dev *input = field->hidinput->input;
input_event(input, usage->type, usage->code, 1);
input_sync(input);
input_event(input, usage->type, usage->code, 0);
input_sync(input);
return 1;
}
return 0;
}
static const struct hid_device_id gyration_devices[] = {
{ 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) },
{ }
};
MODULE_DEVICE_TABLE(hid, gyration_devices);
static struct hid_driver gyration_driver = {
.name = "gyration",
.id_table = gyration_devices,
.input_mapping = gyration_input_mapping,
.event = gyration_event,
};
module_hid_driver(gyration_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-gyration.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for CMedia CM6533 audio jack controls
* and HS100B mute buttons
*
* Copyright (C) 2015 Ben Chen <[email protected]>
* Copyright (C) 2021 Thomas Weißschuh <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Ben Chen");
MODULE_AUTHOR("Thomas Weißschuh");
MODULE_DESCRIPTION("CM6533 HID jack controls and HS100B mute button");
MODULE_LICENSE("GPL");
#define CM6533_JD_TYPE_COUNT 1
#define CM6533_JD_RAWEV_LEN 16
#define CM6533_JD_SFX_OFFSET 8
#define HS100B_RDESC_ORIG_SIZE 60
/* Fixed report descriptor of HS-100B audio chip
* Bit 4 is an abolute Microphone mute usage instead of being unassigned.
*/
static __u8 hs100b_rdesc_fixed[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x09, 0xE2, /* Usage (Mute), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x05, 0x0B, /* Usage Page (Telephony), */
0x09, 0x2F, /* Usage (2Fh), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x20, /* Usage (20h), */
0x81, 0x06, /* Input (Variable, Relative), */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x00, /* Usage (00h), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x09, 0x00, /* Usage (00h), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x00, /* Usage (00h), */
0x95, 0x04, /* Report Count (4), */
0x91, 0x02, /* Output (Variable), */
0xC0 /* End Collection */
};
/*
*
*CM6533 audio jack HID raw events:
*
*Plug in:
*01000600 002083xx 080008c0 10000000
*about 3 seconds later...
*01000a00 002083xx 08000380 10000000
*01000600 002083xx 08000380 10000000
*
*Plug out:
*01000400 002083xx 080008c0 x0000000
*/
static const u8 ji_sfx[] = { 0x08, 0x00, 0x08, 0xc0 };
static const u8 ji_in[] = { 0x01, 0x00, 0x06, 0x00 };
static const u8 ji_out[] = { 0x01, 0x00, 0x04, 0x00 };
static int jack_switch_types[CM6533_JD_TYPE_COUNT] = {
SW_HEADPHONE_INSERT,
};
struct cmhid {
struct input_dev *input_dev;
struct hid_device *hid;
unsigned short switch_map[CM6533_JD_TYPE_COUNT];
};
static void hp_ev(struct hid_device *hid, struct cmhid *cm, int value)
{
input_report_switch(cm->input_dev, SW_HEADPHONE_INSERT, value);
input_sync(cm->input_dev);
}
static int cmhid_raw_event(struct hid_device *hid, struct hid_report *report,
u8 *data, int len)
{
struct cmhid *cm = hid_get_drvdata(hid);
if (len != CM6533_JD_RAWEV_LEN)
goto out;
if (memcmp(data+CM6533_JD_SFX_OFFSET, ji_sfx, sizeof(ji_sfx)))
goto out;
if (!memcmp(data, ji_out, sizeof(ji_out))) {
hp_ev(hid, cm, 0);
goto out;
}
if (!memcmp(data, ji_in, sizeof(ji_in))) {
hp_ev(hid, cm, 1);
goto out;
}
out:
return 0;
}
static int cmhid_input_configured(struct hid_device *hid,
struct hid_input *hidinput)
{
struct input_dev *input_dev = hidinput->input;
struct cmhid *cm = hid_get_drvdata(hid);
int i;
cm->input_dev = input_dev;
memcpy(cm->switch_map, jack_switch_types, sizeof(cm->switch_map));
input_dev->evbit[0] = BIT(EV_SW);
for (i = 0; i < CM6533_JD_TYPE_COUNT; i++)
input_set_capability(cm->input_dev,
EV_SW, jack_switch_types[i]);
return 0;
}
static int cmhid_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 cmhid_probe(struct hid_device *hid, const struct hid_device_id *id)
{
int ret;
struct cmhid *cm;
cm = kzalloc(sizeof(struct cmhid), GFP_KERNEL);
if (!cm) {
ret = -ENOMEM;
goto allocfail;
}
cm->hid = hid;
hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
hid_set_drvdata(hid, cm);
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:
kfree(cm);
allocfail:
return ret;
}
static void cmhid_remove(struct hid_device *hid)
{
struct cmhid *cm = hid_get_drvdata(hid);
hid_hw_stop(hid);
kfree(cm);
}
static const struct hid_device_id cmhid_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
{ }
};
MODULE_DEVICE_TABLE(hid, cmhid_devices);
static struct hid_driver cmhid_driver = {
.name = "cm6533_jd",
.id_table = cmhid_devices,
.raw_event = cmhid_raw_event,
.input_configured = cmhid_input_configured,
.probe = cmhid_probe,
.remove = cmhid_remove,
.input_mapping = cmhid_input_mapping,
};
static __u8 *cmhid_hs100b_report_fixup(struct hid_device *hid, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == HS100B_RDESC_ORIG_SIZE) {
hid_info(hid, "Fixing CMedia HS-100B report descriptor\n");
rdesc = hs100b_rdesc_fixed;
*rsize = sizeof(hs100b_rdesc_fixed);
}
return rdesc;
}
static const struct hid_device_id cmhid_hs100b_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CMEDIA_HS100B) },
{ }
};
MODULE_DEVICE_TABLE(hid, cmhid_hs100b_devices);
static struct hid_driver cmhid_hs100b_driver = {
.name = "cmedia_hs100b",
.id_table = cmhid_hs100b_devices,
.report_fixup = cmhid_hs100b_report_fixup,
};
static int cmedia_init(void)
{
int ret;
ret = hid_register_driver(&cmhid_driver);
if (ret)
return ret;
ret = hid_register_driver(&cmhid_hs100b_driver);
if (ret)
hid_unregister_driver(&cmhid_driver);
return ret;
}
module_init(cmedia_init);
static void cmedia_exit(void)
{
hid_unregister_driver(&cmhid_driver);
hid_unregister_driver(&cmhid_hs100b_driver);
}
module_exit(cmedia_exit);
| linux-master | drivers/hid/hid-cmedia.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Arvo driver for Linux
*
* Copyright (c) 2011 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Arvo is a gamer keyboard with 5 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-arvo.h"
static ssize_t arvo_sysfs_show_mode_key(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev =
interface_to_usbdev(to_usb_interface(dev->parent->parent));
struct arvo_mode_key temp_buf;
int retval;
mutex_lock(&arvo->arvo_lock);
retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_MODE_KEY,
&temp_buf, sizeof(struct arvo_mode_key));
mutex_unlock(&arvo->arvo_lock);
if (retval)
return retval;
return sysfs_emit(buf, "%d\n", temp_buf.state);
}
static ssize_t arvo_sysfs_set_mode_key(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev =
interface_to_usbdev(to_usb_interface(dev->parent->parent));
struct arvo_mode_key temp_buf;
unsigned long state;
int retval;
retval = kstrtoul(buf, 10, &state);
if (retval)
return retval;
temp_buf.command = ARVO_COMMAND_MODE_KEY;
temp_buf.state = state;
mutex_lock(&arvo->arvo_lock);
retval = roccat_common2_send(usb_dev, ARVO_COMMAND_MODE_KEY,
&temp_buf, sizeof(struct arvo_mode_key));
mutex_unlock(&arvo->arvo_lock);
if (retval)
return retval;
return size;
}
static DEVICE_ATTR(mode_key, 0660,
arvo_sysfs_show_mode_key, arvo_sysfs_set_mode_key);
static ssize_t arvo_sysfs_show_key_mask(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev =
interface_to_usbdev(to_usb_interface(dev->parent->parent));
struct arvo_key_mask temp_buf;
int retval;
mutex_lock(&arvo->arvo_lock);
retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_KEY_MASK,
&temp_buf, sizeof(struct arvo_key_mask));
mutex_unlock(&arvo->arvo_lock);
if (retval)
return retval;
return sysfs_emit(buf, "%d\n", temp_buf.key_mask);
}
static ssize_t arvo_sysfs_set_key_mask(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev =
interface_to_usbdev(to_usb_interface(dev->parent->parent));
struct arvo_key_mask temp_buf;
unsigned long key_mask;
int retval;
retval = kstrtoul(buf, 10, &key_mask);
if (retval)
return retval;
temp_buf.command = ARVO_COMMAND_KEY_MASK;
temp_buf.key_mask = key_mask;
mutex_lock(&arvo->arvo_lock);
retval = roccat_common2_send(usb_dev, ARVO_COMMAND_KEY_MASK,
&temp_buf, sizeof(struct arvo_key_mask));
mutex_unlock(&arvo->arvo_lock);
if (retval)
return retval;
return size;
}
static DEVICE_ATTR(key_mask, 0660,
arvo_sysfs_show_key_mask, arvo_sysfs_set_key_mask);
/* retval is 1-5 on success, < 0 on error */
static int arvo_get_actual_profile(struct usb_device *usb_dev)
{
struct arvo_actual_profile temp_buf;
int retval;
retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
&temp_buf, sizeof(struct arvo_actual_profile));
if (retval)
return retval;
return temp_buf.actual_profile;
}
static ssize_t arvo_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return sysfs_emit(buf, "%d\n", arvo->actual_profile);
}
static ssize_t arvo_sysfs_set_actual_profile(struct device *dev,
struct device_attribute *attr, char const *buf, size_t size)
{
struct arvo_device *arvo =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev =
interface_to_usbdev(to_usb_interface(dev->parent->parent));
struct arvo_actual_profile temp_buf;
unsigned long profile;
int retval;
retval = kstrtoul(buf, 10, &profile);
if (retval)
return retval;
if (profile < 1 || profile > 5)
return -EINVAL;
temp_buf.command = ARVO_COMMAND_ACTUAL_PROFILE;
temp_buf.actual_profile = profile;
mutex_lock(&arvo->arvo_lock);
retval = roccat_common2_send(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
&temp_buf, sizeof(struct arvo_actual_profile));
if (!retval) {
arvo->actual_profile = profile;
retval = size;
}
mutex_unlock(&arvo->arvo_lock);
return retval;
}
static DEVICE_ATTR(actual_profile, 0660,
arvo_sysfs_show_actual_profile,
arvo_sysfs_set_actual_profile);
static ssize_t arvo_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 arvo_device *arvo = 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(&arvo->arvo_lock);
retval = roccat_common2_send(usb_dev, command, buf, real_size);
mutex_unlock(&arvo->arvo_lock);
return (retval ? retval : real_size);
}
static ssize_t arvo_sysfs_read(struct file *fp,
struct kobject *kobj, void *buf, loff_t off,
size_t count, size_t real_size, uint command)
{
struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct arvo_device *arvo = 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(&arvo->arvo_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&arvo->arvo_lock);
return (retval ? retval : real_size);
}
static ssize_t arvo_sysfs_write_button(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
return arvo_sysfs_write(fp, kobj, buf, off, count,
sizeof(struct arvo_button), ARVO_COMMAND_BUTTON);
}
static BIN_ATTR(button, 0220, NULL, arvo_sysfs_write_button,
sizeof(struct arvo_button));
static ssize_t arvo_sysfs_read_info(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
return arvo_sysfs_read(fp, kobj, buf, off, count,
sizeof(struct arvo_info), ARVO_COMMAND_INFO);
}
static BIN_ATTR(info, 0440, arvo_sysfs_read_info, NULL,
sizeof(struct arvo_info));
static struct attribute *arvo_attrs[] = {
&dev_attr_mode_key.attr,
&dev_attr_key_mask.attr,
&dev_attr_actual_profile.attr,
NULL,
};
static struct bin_attribute *arvo_bin_attributes[] = {
&bin_attr_button,
&bin_attr_info,
NULL,
};
static const struct attribute_group arvo_group = {
.attrs = arvo_attrs,
.bin_attrs = arvo_bin_attributes,
};
static const struct attribute_group *arvo_groups[] = {
&arvo_group,
NULL,
};
static const struct class arvo_class = {
.name = "arvo",
.dev_groups = arvo_groups,
};
static int arvo_init_arvo_device_struct(struct usb_device *usb_dev,
struct arvo_device *arvo)
{
int retval;
mutex_init(&arvo->arvo_lock);
retval = arvo_get_actual_profile(usb_dev);
if (retval < 0)
return retval;
arvo->actual_profile = retval;
return 0;
}
static int arvo_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 arvo_device *arvo;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_KEYBOARD) {
hid_set_drvdata(hdev, NULL);
return 0;
}
arvo = kzalloc(sizeof(*arvo), GFP_KERNEL);
if (!arvo) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, arvo);
retval = arvo_init_arvo_device_struct(usb_dev, arvo);
if (retval) {
hid_err(hdev, "couldn't init struct arvo_device\n");
goto exit_free;
}
retval = roccat_connect(&arvo_class, hdev,
sizeof(struct arvo_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
arvo->chrdev_minor = retval;
arvo->roccat_claimed = 1;
}
return 0;
exit_free:
kfree(arvo);
return retval;
}
static void arvo_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct arvo_device *arvo;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_KEYBOARD)
return;
arvo = hid_get_drvdata(hdev);
if (arvo->roccat_claimed)
roccat_disconnect(arvo->chrdev_minor);
kfree(arvo);
}
static int arvo_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 = arvo_init_specials(hdev);
if (retval) {
hid_err(hdev, "couldn't install keyboard\n");
goto exit_stop;
}
return 0;
exit_stop:
hid_hw_stop(hdev);
exit:
return retval;
}
static void arvo_remove(struct hid_device *hdev)
{
arvo_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void arvo_report_to_chrdev(struct arvo_device const *arvo,
u8 const *data)
{
struct arvo_special_report const *special_report;
struct arvo_roccat_report roccat_report;
special_report = (struct arvo_special_report const *)data;
roccat_report.profile = arvo->actual_profile;
roccat_report.button = special_report->event &
ARVO_SPECIAL_REPORT_EVENT_MASK_BUTTON;
if ((special_report->event & ARVO_SPECIAL_REPORT_EVENT_MASK_ACTION) ==
ARVO_SPECIAL_REPORT_EVENT_ACTION_PRESS)
roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_PRESS;
else
roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_RELEASE;
roccat_report_event(arvo->chrdev_minor,
(uint8_t const *)&roccat_report);
}
static int arvo_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct arvo_device *arvo = hid_get_drvdata(hdev);
if (size != 3)
return 0;
if (arvo && arvo->roccat_claimed)
arvo_report_to_chrdev(arvo, data);
return 0;
}
static const struct hid_device_id arvo_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
{ }
};
MODULE_DEVICE_TABLE(hid, arvo_devices);
static struct hid_driver arvo_driver = {
.name = "arvo",
.id_table = arvo_devices,
.probe = arvo_probe,
.remove = arvo_remove,
.raw_event = arvo_raw_event
};
static int __init arvo_init(void)
{
int retval;
retval = class_register(&arvo_class);
if (retval)
return retval;
retval = hid_register_driver(&arvo_driver);
if (retval)
class_unregister(&arvo_class);
return retval;
}
static void __exit arvo_exit(void)
{
hid_unregister_driver(&arvo_driver);
class_unregister(&arvo_class);
}
module_init(arvo_init);
module_exit(arvo_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Arvo driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-arvo.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Mayflash game controller adapters.
*
* These devices are manufactured by Mayflash but identify themselves
* using the vendor ID of DragonRise Inc.
*
* Tested with:
* 0079:1801 "DragonRise Inc. Mayflash PS3 Game Controller Adapter"
* 0079:1803 "DragonRise Inc. Mayflash Wireless Sensor DolphinBar"
* 0079:1843 "DragonRise Inc. Mayflash GameCube Game Controller Adapter"
* 0079:1844 "DragonRise Inc. Mayflash GameCube Game Controller Adapter (v04)"
*
* The following adapters probably work too, but need to be tested:
* 0079:1800 "DragonRise Inc. Mayflash WIIU Game Controller Adapter"
*
* Copyright (c) 2016-2017 Marcel Hasler <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
struct mf_device {
struct hid_report *report;
};
static int mf_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct mf_device *mf = data;
int strong, weak;
strong = effect->u.rumble.strong_magnitude;
weak = effect->u.rumble.weak_magnitude;
dbg_hid("Called with 0x%04x 0x%04x.\n", strong, weak);
strong = strong * 0xff / 0xffff;
weak = weak * 0xff / 0xffff;
dbg_hid("Running with 0x%02x 0x%02x.\n", strong, weak);
mf->report->field[0]->value[0] = weak;
mf->report->field[0]->value[1] = strong;
hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);
return 0;
}
static int mf_init(struct hid_device *hid)
{
struct mf_device *mf;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct list_head *report_ptr;
struct hid_report *report;
struct list_head *input_ptr = &hid->inputs;
struct hid_input *input;
struct input_dev *dev;
int error;
/* Setup each of the four inputs */
list_for_each(report_ptr, report_list) {
report = list_entry(report_ptr, struct hid_report, list);
if (report->maxfield < 1 || report->field[0]->report_count < 2) {
hid_err(hid, "Invalid report, this should never happen!\n");
return -ENODEV;
}
if (list_is_last(input_ptr, &hid->inputs)) {
hid_err(hid, "Missing input, this should never happen!\n");
return -ENODEV;
}
input_ptr = input_ptr->next;
input = list_entry(input_ptr, struct hid_input, list);
mf = kzalloc(sizeof(struct mf_device), GFP_KERNEL);
if (!mf)
return -ENOMEM;
dev = input->input;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, mf, mf_play);
if (error) {
kfree(mf);
return error;
}
mf->report = report;
mf->report->field[0]->value[0] = 0x00;
mf->report->field[0]->value[1] = 0x00;
hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);
}
hid_info(hid, "Force feedback for HJZ Mayflash game controller "
"adapters by Marcel Hasler <[email protected]>\n");
return 0;
}
static int mf_probe(struct hid_device *hid, const struct hid_device_id *id)
{
int error;
dev_dbg(&hid->dev, "Mayflash HID hardware probe...\n");
/* Apply quirks as needed */
hid->quirks |= id->driver_data;
error = hid_parse(hid);
if (error) {
hid_err(hid, "HID parse failed.\n");
return error;
}
error = hid_hw_start(hid, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (error) {
hid_err(hid, "HID hw start failed\n");
return error;
}
error = mf_init(hid);
if (error) {
hid_err(hid, "Force feedback init failed.\n");
hid_hw_stop(hid);
return error;
}
return 0;
}
static const struct hid_device_id mf_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3),
.driver_data = HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR),
.driver_data = HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1),
.driver_data = HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE2),
.driver_data = 0 }, /* No quirk required */
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3),
.driver_data = HID_QUIRK_MULTI_INPUT },
{ }
};
MODULE_DEVICE_TABLE(hid, mf_devices);
static struct hid_driver mf_driver = {
.name = "hid_mf",
.id_table = mf_devices,
.probe = mf_probe,
};
module_hid_driver(mf_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-mf.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Betop based devices
*
* The devices are distributed under various names and the same USB device ID
* can be used in both adapters and actual game controllers.
*
* 0x11c2:0x2208 "BTP2185 BFM mode Joystick"
* - tested with BTP2185 BFM Mode.
*
* 0x11C0:0x5506 "BTP2185 PC mode Joystick"
* - tested with BTP2185 PC Mode.
*
* 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
* - tested with BTP2185 PC Mode with another version.
*
* 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
* - tested with BTP2171s.
* Copyright (c) 2014 Huang Bo <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/hid.h>
#include "hid-ids.h"
struct betopff_device {
struct hid_report *report;
};
static int hid_betopff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct betopff_device *betopff = data;
__u16 left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
betopff->report->field[2]->value[0] = left / 256;
betopff->report->field[3]->value[0] = right / 256;
hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
return 0;
}
static int betopff_init(struct hid_device *hid)
{
struct betopff_device *betopff;
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;
int i, j;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report = list_first_entry(report_list, struct hid_report, list);
/*
* Actually there are 4 fields for 4 Bytes as below:
* -----------------------------------------
* Byte0 Byte1 Byte2 Byte3
* 0x00 0x00 left_motor right_motor
* -----------------------------------------
* Do init them with default value.
*/
if (report->maxfield < 4) {
hid_err(hid, "not enough fields in the report: %d\n",
report->maxfield);
return -ENODEV;
}
for (i = 0; i < report->maxfield; i++) {
if (report->field[i]->report_count < 1) {
hid_err(hid, "no values in the field\n");
return -ENODEV;
}
for (j = 0; j < report->field[i]->report_count; j++) {
report->field[i]->value[j] = 0x00;
}
}
betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
if (!betopff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, betopff, hid_betopff_play);
if (error) {
kfree(betopff);
return error;
}
betopff->report = report;
hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force feedback for betop devices by huangbo <[email protected]>\n");
return 0;
}
static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
if (id->driver_data)
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
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;
}
betopff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id betop_devices[] = {
{ 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) },
{ }
};
MODULE_DEVICE_TABLE(hid, betop_devices);
static struct hid_driver betop_driver = {
.name = "betop",
.id_table = betop_devices,
.probe = betop_probe,
};
module_hid_driver(betop_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-betopff.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* MCP2221A - Microchip USB to I2C Host Protocol Bridge
*
* Copyright (c) 2020, Rishi Gupta <[email protected]>
*
* Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/20005565B.pdf
*/
#include <linux/module.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/bitfield.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/hid.h>
#include <linux/hidraw.h>
#include <linux/i2c.h>
#include <linux/gpio/driver.h>
#include <linux/iio/iio.h>
#include "hid-ids.h"
/* Commands codes in a raw output report */
enum {
MCP2221_I2C_WR_DATA = 0x90,
MCP2221_I2C_WR_NO_STOP = 0x94,
MCP2221_I2C_RD_DATA = 0x91,
MCP2221_I2C_RD_RPT_START = 0x93,
MCP2221_I2C_GET_DATA = 0x40,
MCP2221_I2C_PARAM_OR_STATUS = 0x10,
MCP2221_I2C_SET_SPEED = 0x20,
MCP2221_I2C_CANCEL = 0x10,
MCP2221_GPIO_SET = 0x50,
MCP2221_GPIO_GET = 0x51,
MCP2221_SET_SRAM_SETTINGS = 0x60,
MCP2221_GET_SRAM_SETTINGS = 0x61,
MCP2221_READ_FLASH_DATA = 0xb0,
};
/* Response codes in a raw input report */
enum {
MCP2221_SUCCESS = 0x00,
MCP2221_I2C_ENG_BUSY = 0x01,
MCP2221_I2C_START_TOUT = 0x12,
MCP2221_I2C_STOP_TOUT = 0x62,
MCP2221_I2C_WRADDRL_TOUT = 0x23,
MCP2221_I2C_WRDATA_TOUT = 0x44,
MCP2221_I2C_WRADDRL_NACK = 0x25,
MCP2221_I2C_MASK_ADDR_NACK = 0x40,
MCP2221_I2C_WRADDRL_SEND = 0x21,
MCP2221_I2C_ADDR_NACK = 0x25,
MCP2221_I2C_READ_COMPL = 0x55,
MCP2221_ALT_F_NOT_GPIOV = 0xEE,
MCP2221_ALT_F_NOT_GPIOD = 0xEF,
};
/* MCP GPIO direction encoding */
enum {
MCP2221_DIR_OUT = 0x00,
MCP2221_DIR_IN = 0x01,
};
#define MCP_NGPIO 4
/* MCP GPIO set command layout */
struct mcp_set_gpio {
u8 cmd;
u8 dummy;
struct {
u8 change_value;
u8 value;
u8 change_direction;
u8 direction;
} gpio[MCP_NGPIO];
} __packed;
/* MCP GPIO get command layout */
struct mcp_get_gpio {
u8 cmd;
u8 dummy;
struct {
u8 value;
u8 direction;
} gpio[MCP_NGPIO];
} __packed;
/*
* There is no way to distinguish responses. Therefore next command
* is sent only after response to previous has been received. Mutex
* lock is used for this purpose mainly.
*/
struct mcp2221 {
struct hid_device *hdev;
struct i2c_adapter adapter;
struct mutex lock;
struct completion wait_in_report;
struct delayed_work init_work;
u8 *rxbuf;
u8 txbuf[64];
int rxbuf_idx;
int status;
u8 cur_i2c_clk_div;
struct gpio_chip *gc;
u8 gp_idx;
u8 gpio_dir;
u8 mode[4];
#if IS_REACHABLE(CONFIG_IIO)
struct iio_chan_spec iio_channels[3];
u16 adc_values[3];
u8 adc_scale;
u8 dac_value;
u16 dac_scale;
#endif
};
struct mcp2221_iio {
struct mcp2221 *mcp;
};
/*
* Default i2c bus clock frequency 400 kHz. Modify this if you
* want to set some other frequency (min 50 kHz - max 400 kHz).
*/
static uint i2c_clk_freq = 400;
/* Synchronously send output report to the device */
static int mcp_send_report(struct mcp2221 *mcp,
u8 *out_report, size_t len)
{
u8 *buf;
int ret;
buf = kmemdup(out_report, len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/* mcp2221 uses interrupt endpoint for out reports */
ret = hid_hw_output_report(mcp->hdev, buf, len);
kfree(buf);
if (ret < 0)
return ret;
return 0;
}
/*
* Send o/p report to the device and wait for i/p report to be
* received from the device. If the device does not respond,
* we timeout.
*/
static int mcp_send_data_req_status(struct mcp2221 *mcp,
u8 *out_report, int len)
{
int ret;
unsigned long t;
reinit_completion(&mcp->wait_in_report);
ret = mcp_send_report(mcp, out_report, len);
if (ret)
return ret;
t = wait_for_completion_timeout(&mcp->wait_in_report,
msecs_to_jiffies(4000));
if (!t)
return -ETIMEDOUT;
return mcp->status;
}
/* Check pass/fail for actual communication with i2c slave */
static int mcp_chk_last_cmd_status(struct mcp2221 *mcp)
{
memset(mcp->txbuf, 0, 8);
mcp->txbuf[0] = MCP2221_I2C_PARAM_OR_STATUS;
return mcp_send_data_req_status(mcp, mcp->txbuf, 8);
}
/* Cancels last command releasing i2c bus just in case occupied */
static int mcp_cancel_last_cmd(struct mcp2221 *mcp)
{
memset(mcp->txbuf, 0, 8);
mcp->txbuf[0] = MCP2221_I2C_PARAM_OR_STATUS;
mcp->txbuf[2] = MCP2221_I2C_CANCEL;
return mcp_send_data_req_status(mcp, mcp->txbuf, 8);
}
static int mcp_set_i2c_speed(struct mcp2221 *mcp)
{
int ret;
memset(mcp->txbuf, 0, 8);
mcp->txbuf[0] = MCP2221_I2C_PARAM_OR_STATUS;
mcp->txbuf[3] = MCP2221_I2C_SET_SPEED;
mcp->txbuf[4] = mcp->cur_i2c_clk_div;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 8);
if (ret) {
/* Small delay is needed here */
usleep_range(980, 1000);
mcp_cancel_last_cmd(mcp);
}
return 0;
}
/*
* An output report can contain minimum 1 and maximum 60 user data
* bytes. If the number of data bytes is more then 60, we send it
* in chunks of 60 bytes. Last chunk may contain exactly 60 or less
* bytes. Total number of bytes is informed in very first report to
* mcp2221, from that point onwards it first collect all the data
* from host and then send to i2c slave device.
*/
static int mcp_i2c_write(struct mcp2221 *mcp,
struct i2c_msg *msg, int type, u8 last_status)
{
int ret, len, idx, sent;
idx = 0;
sent = 0;
if (msg->len < 60)
len = msg->len;
else
len = 60;
do {
mcp->txbuf[0] = type;
mcp->txbuf[1] = msg->len & 0xff;
mcp->txbuf[2] = msg->len >> 8;
mcp->txbuf[3] = (u8)(msg->addr << 1);
memcpy(&mcp->txbuf[4], &msg->buf[idx], len);
ret = mcp_send_data_req_status(mcp, mcp->txbuf, len + 4);
if (ret)
return ret;
usleep_range(980, 1000);
if (last_status) {
ret = mcp_chk_last_cmd_status(mcp);
if (ret)
return ret;
}
sent = sent + len;
if (sent >= msg->len)
break;
idx = idx + len;
if ((msg->len - sent) < 60)
len = msg->len - sent;
else
len = 60;
/*
* Testing shows delay is needed between successive writes
* otherwise next write fails on first-try from i2c core.
* This value is obtained through automated stress testing.
*/
usleep_range(980, 1000);
} while (len > 0);
return ret;
}
/*
* Device reads all data (0 - 65535 bytes) from i2c slave device and
* stores it in device itself. This data is read back from device to
* host in multiples of 60 bytes using input reports.
*/
static int mcp_i2c_smbus_read(struct mcp2221 *mcp,
struct i2c_msg *msg, int type, u16 smbus_addr,
u8 smbus_len, u8 *smbus_buf)
{
int ret;
u16 total_len;
mcp->txbuf[0] = type;
if (msg) {
mcp->txbuf[1] = msg->len & 0xff;
mcp->txbuf[2] = msg->len >> 8;
mcp->txbuf[3] = (u8)(msg->addr << 1);
total_len = msg->len;
mcp->rxbuf = msg->buf;
} else {
mcp->txbuf[1] = smbus_len;
mcp->txbuf[2] = 0;
mcp->txbuf[3] = (u8)(smbus_addr << 1);
total_len = smbus_len;
mcp->rxbuf = smbus_buf;
}
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 4);
if (ret)
return ret;
mcp->rxbuf_idx = 0;
do {
memset(mcp->txbuf, 0, 4);
mcp->txbuf[0] = MCP2221_I2C_GET_DATA;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
if (ret)
return ret;
ret = mcp_chk_last_cmd_status(mcp);
if (ret)
return ret;
usleep_range(980, 1000);
} while (mcp->rxbuf_idx < total_len);
return ret;
}
static int mcp_i2c_xfer(struct i2c_adapter *adapter,
struct i2c_msg msgs[], int num)
{
int ret;
struct mcp2221 *mcp = i2c_get_adapdata(adapter);
hid_hw_power(mcp->hdev, PM_HINT_FULLON);
mutex_lock(&mcp->lock);
/* Setting speed before every transaction is required for mcp2221 */
ret = mcp_set_i2c_speed(mcp);
if (ret)
goto exit;
if (num == 1) {
if (msgs->flags & I2C_M_RD) {
ret = mcp_i2c_smbus_read(mcp, msgs, MCP2221_I2C_RD_DATA,
0, 0, NULL);
} else {
ret = mcp_i2c_write(mcp, msgs, MCP2221_I2C_WR_DATA, 1);
}
if (ret)
goto exit;
ret = num;
} else if (num == 2) {
/* Ex transaction; send reg address and read its contents */
if (msgs[0].addr == msgs[1].addr &&
!(msgs[0].flags & I2C_M_RD) &&
(msgs[1].flags & I2C_M_RD)) {
ret = mcp_i2c_write(mcp, &msgs[0],
MCP2221_I2C_WR_NO_STOP, 0);
if (ret)
goto exit;
ret = mcp_i2c_smbus_read(mcp, &msgs[1],
MCP2221_I2C_RD_RPT_START,
0, 0, NULL);
if (ret)
goto exit;
ret = num;
} else {
dev_err(&adapter->dev,
"unsupported multi-msg i2c transaction\n");
ret = -EOPNOTSUPP;
}
} else {
dev_err(&adapter->dev,
"unsupported multi-msg i2c transaction\n");
ret = -EOPNOTSUPP;
}
exit:
hid_hw_power(mcp->hdev, PM_HINT_NORMAL);
mutex_unlock(&mcp->lock);
return ret;
}
static int mcp_smbus_write(struct mcp2221 *mcp, u16 addr,
u8 command, u8 *buf, u8 len, int type,
u8 last_status)
{
int data_len, ret;
mcp->txbuf[0] = type;
mcp->txbuf[1] = len + 1; /* 1 is due to command byte itself */
mcp->txbuf[2] = 0;
mcp->txbuf[3] = (u8)(addr << 1);
mcp->txbuf[4] = command;
switch (len) {
case 0:
data_len = 5;
break;
case 1:
mcp->txbuf[5] = buf[0];
data_len = 6;
break;
case 2:
mcp->txbuf[5] = buf[0];
mcp->txbuf[6] = buf[1];
data_len = 7;
break;
default:
if (len > I2C_SMBUS_BLOCK_MAX)
return -EINVAL;
memcpy(&mcp->txbuf[5], buf, len);
data_len = len + 5;
}
ret = mcp_send_data_req_status(mcp, mcp->txbuf, data_len);
if (ret)
return ret;
if (last_status) {
usleep_range(980, 1000);
ret = mcp_chk_last_cmd_status(mcp);
if (ret)
return ret;
}
return ret;
}
static int mcp_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
unsigned short flags, char read_write,
u8 command, int size,
union i2c_smbus_data *data)
{
int ret;
struct mcp2221 *mcp = i2c_get_adapdata(adapter);
hid_hw_power(mcp->hdev, PM_HINT_FULLON);
mutex_lock(&mcp->lock);
ret = mcp_set_i2c_speed(mcp);
if (ret)
goto exit;
switch (size) {
case I2C_SMBUS_QUICK:
if (read_write == I2C_SMBUS_READ)
ret = mcp_i2c_smbus_read(mcp, NULL, MCP2221_I2C_RD_DATA,
addr, 0, &data->byte);
else
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_DATA, 1);
break;
case I2C_SMBUS_BYTE:
if (read_write == I2C_SMBUS_READ)
ret = mcp_i2c_smbus_read(mcp, NULL, MCP2221_I2C_RD_DATA,
addr, 1, &data->byte);
else
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_DATA, 1);
break;
case I2C_SMBUS_BYTE_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_NO_STOP, 0);
if (ret)
goto exit;
ret = mcp_i2c_smbus_read(mcp, NULL,
MCP2221_I2C_RD_RPT_START,
addr, 1, &data->byte);
} else {
ret = mcp_smbus_write(mcp, addr, command, &data->byte,
1, MCP2221_I2C_WR_DATA, 1);
}
break;
case I2C_SMBUS_WORD_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_NO_STOP, 0);
if (ret)
goto exit;
ret = mcp_i2c_smbus_read(mcp, NULL,
MCP2221_I2C_RD_RPT_START,
addr, 2, (u8 *)&data->word);
} else {
ret = mcp_smbus_write(mcp, addr, command,
(u8 *)&data->word, 2,
MCP2221_I2C_WR_DATA, 1);
}
break;
case I2C_SMBUS_BLOCK_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_NO_STOP, 1);
if (ret)
goto exit;
mcp->rxbuf_idx = 0;
mcp->rxbuf = data->block;
mcp->txbuf[0] = MCP2221_I2C_GET_DATA;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
if (ret)
goto exit;
} else {
if (!data->block[0]) {
ret = -EINVAL;
goto exit;
}
ret = mcp_smbus_write(mcp, addr, command, data->block,
data->block[0] + 1,
MCP2221_I2C_WR_DATA, 1);
}
break;
case I2C_SMBUS_I2C_BLOCK_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = mcp_smbus_write(mcp, addr, command, NULL,
0, MCP2221_I2C_WR_NO_STOP, 1);
if (ret)
goto exit;
mcp->rxbuf_idx = 0;
mcp->rxbuf = data->block;
mcp->txbuf[0] = MCP2221_I2C_GET_DATA;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
if (ret)
goto exit;
} else {
if (!data->block[0]) {
ret = -EINVAL;
goto exit;
}
ret = mcp_smbus_write(mcp, addr, command,
&data->block[1], data->block[0],
MCP2221_I2C_WR_DATA, 1);
}
break;
case I2C_SMBUS_PROC_CALL:
ret = mcp_smbus_write(mcp, addr, command,
(u8 *)&data->word,
2, MCP2221_I2C_WR_NO_STOP, 0);
if (ret)
goto exit;
ret = mcp_i2c_smbus_read(mcp, NULL,
MCP2221_I2C_RD_RPT_START,
addr, 2, (u8 *)&data->word);
break;
case I2C_SMBUS_BLOCK_PROC_CALL:
ret = mcp_smbus_write(mcp, addr, command, data->block,
data->block[0] + 1,
MCP2221_I2C_WR_NO_STOP, 0);
if (ret)
goto exit;
ret = mcp_i2c_smbus_read(mcp, NULL,
MCP2221_I2C_RD_RPT_START,
addr, I2C_SMBUS_BLOCK_MAX,
data->block);
break;
default:
dev_err(&mcp->adapter.dev,
"unsupported smbus transaction size:%d\n", size);
ret = -EOPNOTSUPP;
}
exit:
hid_hw_power(mcp->hdev, PM_HINT_NORMAL);
mutex_unlock(&mcp->lock);
return ret;
}
static u32 mcp_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C |
I2C_FUNC_SMBUS_READ_BLOCK_DATA |
I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
(I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_PEC);
}
static const struct i2c_algorithm mcp_i2c_algo = {
.master_xfer = mcp_i2c_xfer,
.smbus_xfer = mcp_smbus_xfer,
.functionality = mcp_i2c_func,
};
#if IS_REACHABLE(CONFIG_GPIOLIB)
static int mcp_gpio_get(struct gpio_chip *gc,
unsigned int offset)
{
int ret;
struct mcp2221 *mcp = gpiochip_get_data(gc);
mcp->txbuf[0] = MCP2221_GPIO_GET;
mcp->gp_idx = offsetof(struct mcp_get_gpio, gpio[offset]);
mutex_lock(&mcp->lock);
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
mutex_unlock(&mcp->lock);
return ret;
}
static void mcp_gpio_set(struct gpio_chip *gc,
unsigned int offset, int value)
{
struct mcp2221 *mcp = gpiochip_get_data(gc);
memset(mcp->txbuf, 0, 18);
mcp->txbuf[0] = MCP2221_GPIO_SET;
mcp->gp_idx = offsetof(struct mcp_set_gpio, gpio[offset].value);
mcp->txbuf[mcp->gp_idx - 1] = 1;
mcp->txbuf[mcp->gp_idx] = !!value;
mutex_lock(&mcp->lock);
mcp_send_data_req_status(mcp, mcp->txbuf, 18);
mutex_unlock(&mcp->lock);
}
static int mcp_gpio_dir_set(struct mcp2221 *mcp,
unsigned int offset, u8 val)
{
memset(mcp->txbuf, 0, 18);
mcp->txbuf[0] = MCP2221_GPIO_SET;
mcp->gp_idx = offsetof(struct mcp_set_gpio, gpio[offset].direction);
mcp->txbuf[mcp->gp_idx - 1] = 1;
mcp->txbuf[mcp->gp_idx] = val;
return mcp_send_data_req_status(mcp, mcp->txbuf, 18);
}
static int mcp_gpio_direction_input(struct gpio_chip *gc,
unsigned int offset)
{
int ret;
struct mcp2221 *mcp = gpiochip_get_data(gc);
mutex_lock(&mcp->lock);
ret = mcp_gpio_dir_set(mcp, offset, MCP2221_DIR_IN);
mutex_unlock(&mcp->lock);
return ret;
}
static int mcp_gpio_direction_output(struct gpio_chip *gc,
unsigned int offset, int value)
{
int ret;
struct mcp2221 *mcp = gpiochip_get_data(gc);
mutex_lock(&mcp->lock);
ret = mcp_gpio_dir_set(mcp, offset, MCP2221_DIR_OUT);
mutex_unlock(&mcp->lock);
/* Can't configure as output, bailout early */
if (ret)
return ret;
mcp_gpio_set(gc, offset, value);
return 0;
}
static int mcp_gpio_get_direction(struct gpio_chip *gc,
unsigned int offset)
{
int ret;
struct mcp2221 *mcp = gpiochip_get_data(gc);
mcp->txbuf[0] = MCP2221_GPIO_GET;
mcp->gp_idx = offsetof(struct mcp_get_gpio, gpio[offset]);
mutex_lock(&mcp->lock);
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
mutex_unlock(&mcp->lock);
if (ret)
return ret;
if (mcp->gpio_dir == MCP2221_DIR_IN)
return GPIO_LINE_DIRECTION_IN;
return GPIO_LINE_DIRECTION_OUT;
}
#endif
/* Gives current state of i2c engine inside mcp2221 */
static int mcp_get_i2c_eng_state(struct mcp2221 *mcp,
u8 *data, u8 idx)
{
int ret;
switch (data[idx]) {
case MCP2221_I2C_WRADDRL_NACK:
case MCP2221_I2C_WRADDRL_SEND:
ret = -ENXIO;
break;
case MCP2221_I2C_START_TOUT:
case MCP2221_I2C_STOP_TOUT:
case MCP2221_I2C_WRADDRL_TOUT:
case MCP2221_I2C_WRDATA_TOUT:
ret = -ETIMEDOUT;
break;
case MCP2221_I2C_ENG_BUSY:
ret = -EAGAIN;
break;
case MCP2221_SUCCESS:
ret = 0x00;
break;
default:
ret = -EIO;
}
return ret;
}
/*
* MCP2221 uses interrupt endpoint for input reports. This function
* is called by HID layer when it receives i/p report from mcp2221,
* which is actually a response to the previously sent command.
*
* MCP2221A firmware specific return codes are parsed and 0 or
* appropriate negative error code is returned. Delayed response
* results in timeout error and stray reponses results in -EIO.
*/
static int mcp2221_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
u8 *buf;
struct mcp2221 *mcp = hid_get_drvdata(hdev);
switch (data[0]) {
case MCP2221_I2C_WR_DATA:
case MCP2221_I2C_WR_NO_STOP:
case MCP2221_I2C_RD_DATA:
case MCP2221_I2C_RD_RPT_START:
switch (data[1]) {
case MCP2221_SUCCESS:
mcp->status = 0;
break;
default:
mcp->status = mcp_get_i2c_eng_state(mcp, data, 2);
}
complete(&mcp->wait_in_report);
break;
case MCP2221_I2C_PARAM_OR_STATUS:
switch (data[1]) {
case MCP2221_SUCCESS:
if ((mcp->txbuf[3] == MCP2221_I2C_SET_SPEED) &&
(data[3] != MCP2221_I2C_SET_SPEED)) {
mcp->status = -EAGAIN;
break;
}
if (data[20] & MCP2221_I2C_MASK_ADDR_NACK) {
mcp->status = -ENXIO;
break;
}
mcp->status = mcp_get_i2c_eng_state(mcp, data, 8);
#if IS_REACHABLE(CONFIG_IIO)
memcpy(&mcp->adc_values, &data[50], sizeof(mcp->adc_values));
#endif
break;
default:
mcp->status = -EIO;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_I2C_GET_DATA:
switch (data[1]) {
case MCP2221_SUCCESS:
if (data[2] == MCP2221_I2C_ADDR_NACK) {
mcp->status = -ENXIO;
break;
}
if (!mcp_get_i2c_eng_state(mcp, data, 2)
&& (data[3] == 0)) {
mcp->status = 0;
break;
}
if (data[3] == 127) {
mcp->status = -EIO;
break;
}
if (data[2] == MCP2221_I2C_READ_COMPL) {
buf = mcp->rxbuf;
memcpy(&buf[mcp->rxbuf_idx], &data[4], data[3]);
mcp->rxbuf_idx = mcp->rxbuf_idx + data[3];
mcp->status = 0;
break;
}
mcp->status = -EIO;
break;
default:
mcp->status = -EIO;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_GPIO_GET:
switch (data[1]) {
case MCP2221_SUCCESS:
if ((data[mcp->gp_idx] == MCP2221_ALT_F_NOT_GPIOV) ||
(data[mcp->gp_idx + 1] == MCP2221_ALT_F_NOT_GPIOD)) {
mcp->status = -ENOENT;
} else {
mcp->status = !!data[mcp->gp_idx];
mcp->gpio_dir = data[mcp->gp_idx + 1];
}
break;
default:
mcp->status = -EAGAIN;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_GPIO_SET:
switch (data[1]) {
case MCP2221_SUCCESS:
if ((data[mcp->gp_idx] == MCP2221_ALT_F_NOT_GPIOV) ||
(data[mcp->gp_idx - 1] == MCP2221_ALT_F_NOT_GPIOV)) {
mcp->status = -ENOENT;
} else {
mcp->status = 0;
}
break;
default:
mcp->status = -EAGAIN;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_SET_SRAM_SETTINGS:
switch (data[1]) {
case MCP2221_SUCCESS:
mcp->status = 0;
break;
default:
mcp->status = -EAGAIN;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_GET_SRAM_SETTINGS:
switch (data[1]) {
case MCP2221_SUCCESS:
memcpy(&mcp->mode, &data[22], 4);
#if IS_REACHABLE(CONFIG_IIO)
mcp->dac_value = data[6] & GENMASK(4, 0);
#endif
mcp->status = 0;
break;
default:
mcp->status = -EAGAIN;
}
complete(&mcp->wait_in_report);
break;
case MCP2221_READ_FLASH_DATA:
switch (data[1]) {
case MCP2221_SUCCESS:
mcp->status = 0;
/* Only handles CHIP SETTINGS subpage currently */
if (mcp->txbuf[1] != 0) {
mcp->status = -EIO;
break;
}
#if IS_REACHABLE(CONFIG_IIO)
{
u8 tmp;
/* DAC scale value */
tmp = FIELD_GET(GENMASK(7, 6), data[6]);
if ((data[6] & BIT(5)) && tmp)
mcp->dac_scale = tmp + 4;
else
mcp->dac_scale = 5;
/* ADC scale value */
tmp = FIELD_GET(GENMASK(4, 3), data[7]);
if ((data[7] & BIT(2)) && tmp)
mcp->adc_scale = tmp - 1;
else
mcp->adc_scale = 0;
}
#endif
break;
default:
mcp->status = -EAGAIN;
}
complete(&mcp->wait_in_report);
break;
default:
mcp->status = -EIO;
complete(&mcp->wait_in_report);
}
return 1;
}
/* Device resource managed function for HID unregistration */
static void mcp2221_hid_unregister(void *ptr)
{
struct hid_device *hdev = ptr;
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
/* This is needed to be sure hid_hw_stop() isn't called twice by the subsystem */
static void mcp2221_remove(struct hid_device *hdev)
{
struct mcp2221 *mcp = hid_get_drvdata(hdev);
cancel_delayed_work_sync(&mcp->init_work);
}
#if IS_REACHABLE(CONFIG_IIO)
static int mcp2221_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *channel, int *val,
int *val2, long mask)
{
struct mcp2221_iio *priv = iio_priv(indio_dev);
struct mcp2221 *mcp = priv->mcp;
int ret;
if (mask == IIO_CHAN_INFO_SCALE) {
if (channel->output)
*val = 1 << mcp->dac_scale;
else
*val = 1 << mcp->adc_scale;
return IIO_VAL_INT;
}
mutex_lock(&mcp->lock);
if (channel->output) {
*val = mcp->dac_value;
ret = IIO_VAL_INT;
} else {
/* Read ADC values */
ret = mcp_chk_last_cmd_status(mcp);
if (!ret) {
*val = le16_to_cpu((__force __le16) mcp->adc_values[channel->address]);
if (*val >= BIT(10))
ret = -EINVAL;
else
ret = IIO_VAL_INT;
}
}
mutex_unlock(&mcp->lock);
return ret;
}
static int mcp2221_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val, int val2, long mask)
{
struct mcp2221_iio *priv = iio_priv(indio_dev);
struct mcp2221 *mcp = priv->mcp;
int ret;
if (val < 0 || val >= BIT(5))
return -EINVAL;
mutex_lock(&mcp->lock);
memset(mcp->txbuf, 0, 12);
mcp->txbuf[0] = MCP2221_SET_SRAM_SETTINGS;
mcp->txbuf[4] = BIT(7) | val;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 12);
if (!ret)
mcp->dac_value = val;
mutex_unlock(&mcp->lock);
return ret;
}
static const struct iio_info mcp2221_info = {
.read_raw = &mcp2221_read_raw,
.write_raw = &mcp2221_write_raw,
};
static int mcp_iio_channels(struct mcp2221 *mcp)
{
int idx, cnt = 0;
bool dac_created = false;
/* GP0 doesn't have ADC/DAC alternative function */
for (idx = 1; idx < MCP_NGPIO; idx++) {
struct iio_chan_spec *chan = &mcp->iio_channels[cnt];
switch (mcp->mode[idx]) {
case 2:
chan->address = idx - 1;
chan->channel = cnt++;
break;
case 3:
/* GP1 doesn't have DAC alternative function */
if (idx == 1 || dac_created)
continue;
/* DAC1 and DAC2 outputs are connected to the same DAC */
dac_created = true;
chan->output = 1;
cnt++;
break;
default:
continue;
};
chan->type = IIO_VOLTAGE;
chan->indexed = 1;
chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE);
chan->scan_index = -1;
}
return cnt;
}
static void mcp_init_work(struct work_struct *work)
{
struct iio_dev *indio_dev;
struct mcp2221 *mcp = container_of(work, struct mcp2221, init_work.work);
struct mcp2221_iio *data;
static int retries = 5;
int ret, num_channels;
hid_hw_power(mcp->hdev, PM_HINT_FULLON);
mutex_lock(&mcp->lock);
mcp->txbuf[0] = MCP2221_GET_SRAM_SETTINGS;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 1);
if (ret == -EAGAIN)
goto reschedule_task;
num_channels = mcp_iio_channels(mcp);
if (!num_channels)
goto unlock;
mcp->txbuf[0] = MCP2221_READ_FLASH_DATA;
mcp->txbuf[1] = 0;
ret = mcp_send_data_req_status(mcp, mcp->txbuf, 2);
if (ret == -EAGAIN)
goto reschedule_task;
indio_dev = devm_iio_device_alloc(&mcp->hdev->dev, sizeof(*data));
if (!indio_dev)
goto unlock;
data = iio_priv(indio_dev);
data->mcp = mcp;
indio_dev->name = "mcp2221";
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &mcp2221_info;
indio_dev->channels = mcp->iio_channels;
indio_dev->num_channels = num_channels;
devm_iio_device_register(&mcp->hdev->dev, indio_dev);
unlock:
mutex_unlock(&mcp->lock);
hid_hw_power(mcp->hdev, PM_HINT_NORMAL);
return;
reschedule_task:
mutex_unlock(&mcp->lock);
hid_hw_power(mcp->hdev, PM_HINT_NORMAL);
if (!retries--)
return;
/* Device is not ready to read SRAM or FLASH data, try again */
schedule_delayed_work(&mcp->init_work, msecs_to_jiffies(100));
}
#endif
static int mcp2221_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
struct mcp2221 *mcp;
mcp = devm_kzalloc(&hdev->dev, sizeof(*mcp), GFP_KERNEL);
if (!mcp)
return -ENOMEM;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "can't parse reports\n");
return ret;
}
/*
* This driver uses the .raw_event callback and therefore does not need any
* HID_CONNECT_xxx flags.
*/
ret = hid_hw_start(hdev, 0);
if (ret) {
hid_err(hdev, "can't start hardware\n");
return ret;
}
hid_info(hdev, "USB HID v%x.%02x Device [%s] on %s\n", hdev->version >> 8,
hdev->version & 0xff, hdev->name, hdev->phys);
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "can't open device\n");
hid_hw_stop(hdev);
return ret;
}
mutex_init(&mcp->lock);
init_completion(&mcp->wait_in_report);
hid_set_drvdata(hdev, mcp);
mcp->hdev = hdev;
ret = devm_add_action_or_reset(&hdev->dev, mcp2221_hid_unregister, hdev);
if (ret)
return ret;
/* Set I2C bus clock diviser */
if (i2c_clk_freq > 400)
i2c_clk_freq = 400;
if (i2c_clk_freq < 50)
i2c_clk_freq = 50;
mcp->cur_i2c_clk_div = (12000000 / (i2c_clk_freq * 1000)) - 3;
mcp->adapter.owner = THIS_MODULE;
mcp->adapter.class = I2C_CLASS_HWMON;
mcp->adapter.algo = &mcp_i2c_algo;
mcp->adapter.retries = 1;
mcp->adapter.dev.parent = &hdev->dev;
snprintf(mcp->adapter.name, sizeof(mcp->adapter.name),
"MCP2221 usb-i2c bridge");
ret = devm_i2c_add_adapter(&hdev->dev, &mcp->adapter);
if (ret) {
hid_err(hdev, "can't add usb-i2c adapter: %d\n", ret);
return ret;
}
i2c_set_adapdata(&mcp->adapter, mcp);
#if IS_REACHABLE(CONFIG_GPIOLIB)
/* Setup GPIO chip */
mcp->gc = devm_kzalloc(&hdev->dev, sizeof(*mcp->gc), GFP_KERNEL);
if (!mcp->gc)
return -ENOMEM;
mcp->gc->label = "mcp2221_gpio";
mcp->gc->direction_input = mcp_gpio_direction_input;
mcp->gc->direction_output = mcp_gpio_direction_output;
mcp->gc->get_direction = mcp_gpio_get_direction;
mcp->gc->set = mcp_gpio_set;
mcp->gc->get = mcp_gpio_get;
mcp->gc->ngpio = MCP_NGPIO;
mcp->gc->base = -1;
mcp->gc->can_sleep = 1;
mcp->gc->parent = &hdev->dev;
ret = devm_gpiochip_add_data(&hdev->dev, mcp->gc, mcp);
if (ret)
return ret;
#endif
#if IS_REACHABLE(CONFIG_IIO)
INIT_DELAYED_WORK(&mcp->init_work, mcp_init_work);
schedule_delayed_work(&mcp->init_work, msecs_to_jiffies(100));
#endif
return 0;
}
static const struct hid_device_id mcp2221_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_MCP2221) },
{ }
};
MODULE_DEVICE_TABLE(hid, mcp2221_devices);
static struct hid_driver mcp2221_driver = {
.name = "mcp2221",
.id_table = mcp2221_devices,
.probe = mcp2221_probe,
.remove = mcp2221_remove,
.raw_event = mcp2221_raw_event,
};
/* Register with HID core */
module_hid_driver(mcp2221_driver);
MODULE_AUTHOR("Rishi Gupta <[email protected]>");
MODULE_DESCRIPTION("MCP2221 Microchip HID USB to I2C master bridge");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-mcp2221.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some monterey "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"
static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 31 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
hid_info(hdev, "fixing up button/consumer in HID report descriptor\n");
rdesc[30] = 0x0c;
}
return rdesc;
}
#define mr_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int mr_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 0x156: mr_map_key_clear(KEY_WORDPROCESSOR); break;
case 0x157: mr_map_key_clear(KEY_SPREADSHEET); break;
case 0x158: mr_map_key_clear(KEY_PRESENTATION); break;
case 0x15c: mr_map_key_clear(KEY_STOP); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id mr_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
{ }
};
MODULE_DEVICE_TABLE(hid, mr_devices);
static struct hid_driver mr_driver = {
.name = "monterey",
.id_table = mr_devices,
.report_fixup = mr_report_fixup,
.input_mapping = mr_input_mapping,
};
module_hid_driver(mr_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-monterey.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Lua driver for Linux
*
* Copyright (c) 2012 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Lua is a gamer mouse which cpi, button and light settings can be
* configured.
*/
#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-lua.h"
static ssize_t lua_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);
struct lua_device *lua = 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(&lua->lua_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&lua->lua_lock);
return retval ? retval : real_size;
}
static ssize_t lua_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);
struct lua_device *lua = 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(&lua->lua_lock);
retval = roccat_common2_send(usb_dev, command, buf, real_size);
mutex_unlock(&lua->lua_lock);
return retval ? retval : real_size;
}
#define LUA_SYSFS_W(thingy, THINGY) \
static ssize_t lua_sysfs_write_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, \
char *buf, loff_t off, size_t count) \
{ \
return lua_sysfs_write(fp, kobj, buf, off, count, \
LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
}
#define LUA_SYSFS_R(thingy, THINGY) \
static ssize_t lua_sysfs_read_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, \
char *buf, loff_t off, size_t count) \
{ \
return lua_sysfs_read(fp, kobj, buf, off, count, \
LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
}
#define LUA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
LUA_SYSFS_W(thingy, THINGY) \
LUA_SYSFS_R(thingy, THINGY) \
static struct bin_attribute lua_ ## thingy ## _attr = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = LUA_SIZE_ ## THINGY, \
.read = lua_sysfs_read_ ## thingy, \
.write = lua_sysfs_write_ ## thingy \
};
LUA_BIN_ATTRIBUTE_RW(control, CONTROL)
static int lua_create_sysfs_attributes(struct usb_interface *intf)
{
return sysfs_create_bin_file(&intf->dev.kobj, &lua_control_attr);
}
static void lua_remove_sysfs_attributes(struct usb_interface *intf)
{
sysfs_remove_bin_file(&intf->dev.kobj, &lua_control_attr);
}
static int lua_init_lua_device_struct(struct usb_device *usb_dev,
struct lua_device *lua)
{
mutex_init(&lua->lua_lock);
return 0;
}
static int lua_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 lua_device *lua;
int retval;
lua = kzalloc(sizeof(*lua), GFP_KERNEL);
if (!lua) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, lua);
retval = lua_init_lua_device_struct(usb_dev, lua);
if (retval) {
hid_err(hdev, "couldn't init struct lua_device\n");
goto exit;
}
retval = lua_create_sysfs_attributes(intf);
if (retval) {
hid_err(hdev, "cannot create sysfs files\n");
goto exit;
}
return 0;
exit:
kfree(lua);
return retval;
}
static void lua_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct lua_device *lua;
lua_remove_sysfs_attributes(intf);
lua = hid_get_drvdata(hdev);
kfree(lua);
}
static int lua_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 = lua_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 lua_remove(struct hid_device *hdev)
{
lua_remove_specials(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id lua_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
{ }
};
MODULE_DEVICE_TABLE(hid, lua_devices);
static struct hid_driver lua_driver = {
.name = "lua",
.id_table = lua_devices,
.probe = lua_probe,
.remove = lua_remove
};
module_hid_driver(lua_driver);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Lua driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-lua.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for ELO usb touchscreen 4000/4500
*
* Copyright (c) 2013 Jiri Slaby
*
* Data parsing taken from elousb driver by Vojtech Pavlik.
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/workqueue.h>
#include "hid-ids.h"
#define ELO_PERIODIC_READ_INTERVAL HZ
#define ELO_SMARTSET_CMD_TIMEOUT 2000 /* msec */
/* Elo SmartSet commands */
#define ELO_FLUSH_SMARTSET_RESPONSES 0x02 /* Flush all pending smartset responses */
#define ELO_SEND_SMARTSET_COMMAND 0x05 /* Send a smartset command */
#define ELO_GET_SMARTSET_RESPONSE 0x06 /* Get a smartset response */
#define ELO_DIAG 0x64 /* Diagnostics command */
#define ELO_SMARTSET_PACKET_SIZE 8
struct elo_priv {
struct usb_device *usbdev;
struct delayed_work work;
unsigned char buffer[ELO_SMARTSET_PACKET_SIZE];
};
static struct workqueue_struct *wq;
static bool use_fw_quirk = true;
module_param(use_fw_quirk, bool, S_IRUGO);
MODULE_PARM_DESC(use_fw_quirk, "Do periodic pokes for broken M firmwares (default = true)");
static int elo_input_configured(struct hid_device *hdev,
struct hid_input *hidinput)
{
struct input_dev *input = hidinput->input;
/*
* ELO devices have one Button usage in GenDesk field, which makes
* hid-input map it to BTN_LEFT; that confuses userspace, which then
* considers the device to be a mouse/touchpad instead of touchscreen.
*/
clear_bit(BTN_LEFT, input->keybit);
set_bit(BTN_TOUCH, input->keybit);
set_bit(ABS_PRESSURE, input->absbit);
input_set_abs_params(input, ABS_PRESSURE, 0, 256, 0, 0);
return 0;
}
static void elo_process_data(struct input_dev *input, const u8 *data, int size)
{
int press;
input_report_abs(input, ABS_X, (data[3] << 8) | data[2]);
input_report_abs(input, ABS_Y, (data[5] << 8) | data[4]);
press = 0;
if (data[1] & 0x80)
press = (data[7] << 8) | data[6];
input_report_abs(input, ABS_PRESSURE, press);
if (data[1] & 0x03) {
input_report_key(input, BTN_TOUCH, 1);
input_sync(input);
}
if (data[1] & 0x04)
input_report_key(input, BTN_TOUCH, 0);
input_sync(input);
}
static int elo_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct hid_input *hidinput;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || list_empty(&hdev->inputs))
return 0;
hidinput = list_first_entry(&hdev->inputs, struct hid_input, list);
switch (report->id) {
case 0:
if (data[0] == 'T') { /* Mandatory ELO packet marker */
elo_process_data(hidinput->input, data, size);
return 1;
}
break;
default: /* unknown report */
/* Unknown report type; pass upstream */
hid_info(hdev, "unknown report type %d\n", report->id);
break;
}
return 0;
}
static int elo_smartset_send_get(struct usb_device *dev, u8 command,
void *data)
{
unsigned int pipe;
u8 dir;
if (command == ELO_SEND_SMARTSET_COMMAND) {
pipe = usb_sndctrlpipe(dev, 0);
dir = USB_DIR_OUT;
} else if (command == ELO_GET_SMARTSET_RESPONSE) {
pipe = usb_rcvctrlpipe(dev, 0);
dir = USB_DIR_IN;
} else
return -EINVAL;
return usb_control_msg(dev, pipe, command,
dir | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, 0, data, ELO_SMARTSET_PACKET_SIZE,
ELO_SMARTSET_CMD_TIMEOUT);
}
static int elo_flush_smartset_responses(struct usb_device *dev)
{
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
ELO_FLUSH_SMARTSET_RESPONSES,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static void elo_work(struct work_struct *work)
{
struct elo_priv *priv = container_of(work, struct elo_priv, work.work);
struct usb_device *dev = priv->usbdev;
unsigned char *buffer = priv->buffer;
int ret;
ret = elo_flush_smartset_responses(dev);
if (ret < 0) {
dev_err(&dev->dev, "initial FLUSH_SMARTSET_RESPONSES failed, error %d\n",
ret);
goto fail;
}
/* send Diagnostics command */
*buffer = ELO_DIAG;
ret = elo_smartset_send_get(dev, ELO_SEND_SMARTSET_COMMAND, buffer);
if (ret < 0) {
dev_err(&dev->dev, "send Diagnostics Command failed, error %d\n",
ret);
goto fail;
}
/* get the result */
ret = elo_smartset_send_get(dev, ELO_GET_SMARTSET_RESPONSE, buffer);
if (ret < 0) {
dev_err(&dev->dev, "get Diagnostics Command response failed, error %d\n",
ret);
goto fail;
}
/* read the ack */
if (*buffer != 'A') {
ret = elo_smartset_send_get(dev, ELO_GET_SMARTSET_RESPONSE,
buffer);
if (ret < 0) {
dev_err(&dev->dev, "get acknowledge response failed, error %d\n",
ret);
goto fail;
}
}
fail:
ret = elo_flush_smartset_responses(dev);
if (ret < 0)
dev_err(&dev->dev, "final FLUSH_SMARTSET_RESPONSES failed, error %d\n",
ret);
queue_delayed_work(wq, &priv->work, ELO_PERIODIC_READ_INTERVAL);
}
/*
* Not all Elo devices need the periodic HID descriptor reads.
* Only firmware version M needs this.
*/
static bool elo_broken_firmware(struct usb_device *dev)
{
struct usb_device *hub = dev->parent;
struct usb_device *child = NULL;
u16 fw_lvl = le16_to_cpu(dev->descriptor.bcdDevice);
u16 child_vid, child_pid;
int i;
if (!use_fw_quirk)
return false;
if (fw_lvl != 0x10d)
return false;
/* iterate sibling devices of the touch controller */
usb_hub_for_each_child(hub, i, child) {
child_vid = le16_to_cpu(child->descriptor.idVendor);
child_pid = le16_to_cpu(child->descriptor.idProduct);
/*
* If one of the devices below is present attached as a sibling of
* the touch controller then this is a newer IBM 4820 monitor that
* does not need the IBM-requested workaround if fw level is
* 0x010d - aka 'M'.
* No other HW can have this combination.
*/
if (child_vid==0x04b3) {
switch (child_pid) {
case 0x4676: /* 4820 21x Video */
case 0x4677: /* 4820 51x Video */
case 0x4678: /* 4820 2Lx Video */
case 0x4679: /* 4820 5Lx Video */
return false;
}
}
}
return true;
}
static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct elo_priv *priv;
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
INIT_DELAYED_WORK(&priv->work, elo_work);
priv->usbdev = interface_to_usbdev(to_usb_interface(hdev->dev.parent));
hid_set_drvdata(hdev, priv);
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;
}
if (elo_broken_firmware(priv->usbdev)) {
hid_info(hdev, "broken firmware found, installing workaround\n");
queue_delayed_work(wq, &priv->work, ELO_PERIODIC_READ_INTERVAL);
}
return 0;
err_free:
kfree(priv);
return ret;
}
static void elo_remove(struct hid_device *hdev)
{
struct elo_priv *priv = hid_get_drvdata(hdev);
hid_hw_stop(hdev);
cancel_delayed_work_sync(&priv->work);
kfree(priv);
}
static const struct hid_device_id elo_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009), },
{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030), },
{ }
};
MODULE_DEVICE_TABLE(hid, elo_devices);
static struct hid_driver elo_driver = {
.name = "elo",
.id_table = elo_devices,
.probe = elo_probe,
.remove = elo_remove,
.raw_event = elo_raw_event,
.input_configured = elo_input_configured,
};
static int __init elo_driver_init(void)
{
int ret;
wq = create_singlethread_workqueue("elousb");
if (!wq)
return -ENOMEM;
ret = hid_register_driver(&elo_driver);
if (ret)
destroy_workqueue(wq);
return ret;
}
module_init(elo_driver_init);
static void __exit elo_driver_exit(void)
{
hid_unregister_driver(&elo_driver);
destroy_workqueue(wq);
}
module_exit(elo_driver_exit);
MODULE_AUTHOR("Jiri Slaby <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-elo.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for DragonRise Inc. game controllers
*
* From what I have gathered, these devices are mass produced in China and are
* distributed under several vendors. They often share the same design as
* the original PlayStation DualShock controller.
*
* 0079:0006 "DragonRise Inc. Generic USB Joystick "
* - tested with a Tesun USB-703 game controller.
*
* Copyright (c) 2009 Richard Walmsley <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_DRAGONRISE_FF
struct drff_device {
struct hid_report *report;
};
static int drff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct drff_device *drff = data;
int strong, weak;
strong = effect->u.rumble.strong_magnitude;
weak = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", strong, weak);
if (strong || weak) {
strong = strong * 0xff / 0xffff;
weak = weak * 0xff / 0xffff;
/* While reverse engineering this device, I found that when
this value is set, it causes the strong rumble to function
at a near maximum speed, so we'll bypass it. */
if (weak == 0x0a)
weak = 0x0b;
drff->report->field[0]->value[0] = 0x51;
drff->report->field[0]->value[1] = 0x00;
drff->report->field[0]->value[2] = weak;
drff->report->field[0]->value[4] = strong;
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
drff->report->field[0]->value[0] = 0xfa;
drff->report->field[0]->value[1] = 0xfe;
} else {
drff->report->field[0]->value[0] = 0xf3;
drff->report->field[0]->value[1] = 0x00;
}
drff->report->field[0]->value[2] = 0x00;
drff->report->field[0]->value[4] = 0x00;
dbg_hid("running with 0x%02x 0x%02x", strong, weak);
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
return 0;
}
static int drff_init(struct hid_device *hid)
{
struct drff_device *drff;
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_first_entry(&hid->inputs, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report = list_first_entry(report_list, 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 < 7) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
drff = kzalloc(sizeof(struct drff_device), GFP_KERNEL);
if (!drff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, drff, drff_play);
if (error) {
kfree(drff);
return error;
}
drff->report = report;
drff->report->field[0]->value[0] = 0xf3;
drff->report->field[0]->value[1] = 0x00;
drff->report->field[0]->value[2] = 0x00;
drff->report->field[0]->value[3] = 0x00;
drff->report->field[0]->value[4] = 0x00;
drff->report->field[0]->value[5] = 0x00;
drff->report->field[0]->value[6] = 0x00;
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force Feedback for DragonRise Inc. "
"game controllers by Richard Walmsley <[email protected]>\n");
return 0;
}
#else
static inline int drff_init(struct hid_device *hid)
{
return 0;
}
#endif
/*
* The original descriptor of joystick with PID 0x0011, represented by DVTech PC
* JS19. It seems both copied from another device and a result of confusion
* either about the specification or about the program used to create the
* descriptor. In any case, it's a wonder it works on Windows.
*
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (Joystick), ; Joystick (04h, application collection)
* Collection (Application),
* Collection (Logical),
* Report Size (8),
* Report Count (5),
* Logical Minimum (0),
* Logical Maximum (255),
* Physical Minimum (0),
* Physical Maximum (255),
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (Y), ; Y (31h, dynamic value)
* Input (Variable),
* Report Size (4),
* Report Count (1),
* Logical Maximum (7),
* Physical Maximum (315),
* Unit (Degrees),
* Usage (00h),
* Input (Variable, Null State),
* Unit,
* Report Size (1),
* Report Count (10),
* Logical Maximum (1),
* Physical Maximum (1),
* Usage Page (Button), ; Button (09h)
* Usage Minimum (01h),
* Usage Maximum (0Ah),
* Input (Variable),
* Usage Page (FF00h), ; FF00h, vendor-defined
* Report Size (1),
* Report Count (10),
* Logical Maximum (1),
* Physical Maximum (1),
* Usage (01h),
* Input (Variable),
* End Collection,
* Collection (Logical),
* Report Size (8),
* Report Count (4),
* Physical Maximum (255),
* Logical Maximum (255),
* Usage (02h),
* Output (Variable),
* End Collection,
* End Collection
*/
/* Size of the original descriptor of the PID 0x0011 joystick */
#define PID0011_RDESC_ORIG_SIZE 101
/* Fixed report descriptor for PID 0x011 joystick */
static __u8 pid0011_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x14, /* Logical Minimum (0), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x02, /* Report Count (2), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x01, /* Input (Constant), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x0A, /* Report Count (10), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x0A, /* Usage Maximum (0Ah), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0A, /* Report Count (10), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case 0x0011:
if (*rsize == PID0011_RDESC_ORIG_SIZE) {
rdesc = pid0011_rdesc_fixed;
*rsize = sizeof(pid0011_rdesc_fixed);
}
break;
}
return rdesc;
}
#define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c))
#define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
static int dr_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) {
/*
* revert to the old hid-input behavior where axes
* can be randomly assigned when hid->usage is reused.
*/
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(usage->hid & 0xf);
return 1;
}
return 0;
}
static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
dev_dbg(&hdev->dev, "DragonRise Inc. 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;
}
switch (hdev->product) {
case 0x0006:
ret = drff_init(hdev);
if (ret) {
dev_err(&hdev->dev, "force feedback init failed\n");
hid_hw_stop(hdev);
goto err;
}
break;
}
return 0;
err:
return ret;
}
static const struct hid_device_id dr_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006), },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), },
{ }
};
MODULE_DEVICE_TABLE(hid, dr_devices);
static struct hid_driver dr_driver = {
.name = "dragonrise",
.id_table = dr_devices,
.report_fixup = dr_report_fixup,
.probe = dr_probe,
.input_mapping = dr_input_mapping,
};
module_hid_driver(dr_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-dr.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2016 Masaki Ota <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include "hid-ids.h"
/* ALPS Device Product ID */
#define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0
#define HID_PRODUCT_ID_COSMO 0x1202
#define HID_PRODUCT_ID_U1_PTP_1 0x1207
#define HID_PRODUCT_ID_U1 0x1209
#define HID_PRODUCT_ID_U1_PTP_2 0x120A
#define HID_PRODUCT_ID_U1_DUAL 0x120B
#define HID_PRODUCT_ID_T4_BTNLESS 0x120C
#define DEV_SINGLEPOINT 0x01
#define DEV_DUALPOINT 0x02
#define U1_MOUSE_REPORT_ID 0x01 /* Mouse data ReportID */
#define U1_ABSOLUTE_REPORT_ID 0x03 /* Absolute data ReportID */
#define U1_ABSOLUTE_REPORT_ID_SECD 0x02 /* FW-PTP Absolute data ReportID */
#define U1_FEATURE_REPORT_ID 0x05 /* Feature ReportID */
#define U1_SP_ABSOLUTE_REPORT_ID 0x06 /* Feature ReportID */
#define U1_FEATURE_REPORT_LEN 0x08 /* Feature Report Length */
#define U1_FEATURE_REPORT_LEN_ALL 0x0A
#define U1_CMD_REGISTER_READ 0xD1
#define U1_CMD_REGISTER_WRITE 0xD2
#define U1_DEVTYPE_SP_SUPPORT 0x10 /* SP Support */
#define U1_DISABLE_DEV 0x01
#define U1_TP_ABS_MODE 0x02
#define U1_SP_ABS_MODE 0x80
#define ADDRESS_U1_DEV_CTRL_1 0x00800040
#define ADDRESS_U1_DEVICE_TYP 0x00800043
#define ADDRESS_U1_NUM_SENS_X 0x00800047
#define ADDRESS_U1_NUM_SENS_Y 0x00800048
#define ADDRESS_U1_PITCH_SENS_X 0x00800049
#define ADDRESS_U1_PITCH_SENS_Y 0x0080004A
#define ADDRESS_U1_RESO_DWN_ABS 0x0080004E
#define ADDRESS_U1_PAD_BTN 0x00800052
#define ADDRESS_U1_SP_BTN 0x0080009F
#define T4_INPUT_REPORT_LEN sizeof(struct t4_input_report)
#define T4_FEATURE_REPORT_LEN T4_INPUT_REPORT_LEN
#define T4_FEATURE_REPORT_ID 7
#define T4_CMD_REGISTER_READ 0x08
#define T4_CMD_REGISTER_WRITE 0x07
#define T4_ADDRESS_BASE 0xC2C0
#define PRM_SYS_CONFIG_1 (T4_ADDRESS_BASE + 0x0002)
#define T4_PRM_FEED_CONFIG_1 (T4_ADDRESS_BASE + 0x0004)
#define T4_PRM_FEED_CONFIG_4 (T4_ADDRESS_BASE + 0x001A)
#define T4_PRM_ID_CONFIG_3 (T4_ADDRESS_BASE + 0x00B0)
#define T4_FEEDCFG4_ADVANCED_ABS_ENABLE 0x01
#define T4_I2C_ABS 0x78
#define T4_COUNT_PER_ELECTRODE 256
#define MAX_TOUCHES 5
enum dev_num {
U1,
T4,
UNKNOWN,
};
/**
* struct alps_dev
*
* @input: pointer to the kernel input device
* @input2: pointer to the kernel input2 device
* @hdev: pointer to the struct hid_device
*
* @dev_type: device type
* @max_fingers: total number of fingers
* @has_sp: boolean of sp existense
* @sp_btn_info: button information
* @x_active_len_mm: active area length of X (mm)
* @y_active_len_mm: active area length of Y (mm)
* @x_max: maximum x coordinate value
* @y_max: maximum y coordinate value
* @x_min: minimum x coordinate value
* @y_min: minimum y coordinate value
* @btn_cnt: number of buttons
* @sp_btn_cnt: number of stick buttons
*/
struct alps_dev {
struct input_dev *input;
struct input_dev *input2;
struct hid_device *hdev;
enum dev_num dev_type;
u8 max_fingers;
u8 has_sp;
u8 sp_btn_info;
u32 x_active_len_mm;
u32 y_active_len_mm;
u32 x_max;
u32 y_max;
u32 x_min;
u32 y_min;
u32 btn_cnt;
u32 sp_btn_cnt;
};
struct t4_contact_data {
u8 palm;
u8 x_lo;
u8 x_hi;
u8 y_lo;
u8 y_hi;
};
struct t4_input_report {
u8 reportID;
u8 numContacts;
struct t4_contact_data contact[5];
u8 button;
u8 track[5];
u8 zx[5], zy[5];
u8 palmTime[5];
u8 kilroy;
u16 timeStamp;
};
static u16 t4_calc_check_sum(u8 *buffer,
unsigned long offset, unsigned long length)
{
u16 sum1 = 0xFF, sum2 = 0xFF;
unsigned long i = 0;
if (offset + length >= 50)
return 0;
while (length > 0) {
u32 tlen = length > 20 ? 20 : length;
length -= tlen;
do {
sum1 += buffer[offset + i];
sum2 += sum1;
i++;
} while (--tlen > 0);
sum1 = (sum1 & 0xFF) + (sum1 >> 8);
sum2 = (sum2 & 0xFF) + (sum2 >> 8);
}
sum1 = (sum1 & 0xFF) + (sum1 >> 8);
sum2 = (sum2 & 0xFF) + (sum2 >> 8);
return(sum2 << 8 | sum1);
}
static int t4_read_write_register(struct hid_device *hdev, u32 address,
u8 *read_val, u8 write_val, bool read_flag)
{
int ret;
u16 check_sum;
u8 *input;
u8 *readbuf = NULL;
input = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL);
if (!input)
return -ENOMEM;
input[0] = T4_FEATURE_REPORT_ID;
if (read_flag) {
input[1] = T4_CMD_REGISTER_READ;
input[8] = 0x00;
} else {
input[1] = T4_CMD_REGISTER_WRITE;
input[8] = write_val;
}
put_unaligned_le32(address, input + 2);
input[6] = 1;
input[7] = 0;
/* Calculate the checksum */
check_sum = t4_calc_check_sum(input, 1, 8);
input[9] = (u8)check_sum;
input[10] = (u8)(check_sum >> 8);
input[11] = 0;
ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, input,
T4_FEATURE_REPORT_LEN,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret < 0) {
dev_err(&hdev->dev, "failed to read command (%d)\n", ret);
goto exit;
}
if (read_flag) {
readbuf = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL);
if (!readbuf) {
ret = -ENOMEM;
goto exit;
}
ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, readbuf,
T4_FEATURE_REPORT_LEN,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
dev_err(&hdev->dev, "failed read register (%d)\n", ret);
goto exit_readbuf;
}
ret = -EINVAL;
if (*(u32 *)&readbuf[6] != address) {
dev_err(&hdev->dev, "read register address error (%x,%x)\n",
*(u32 *)&readbuf[6], address);
goto exit_readbuf;
}
if (*(u16 *)&readbuf[10] != 1) {
dev_err(&hdev->dev, "read register size error (%x)\n",
*(u16 *)&readbuf[10]);
goto exit_readbuf;
}
check_sum = t4_calc_check_sum(readbuf, 6, 7);
if (*(u16 *)&readbuf[13] != check_sum) {
dev_err(&hdev->dev, "read register checksum error (%x,%x)\n",
*(u16 *)&readbuf[13], check_sum);
goto exit_readbuf;
}
*read_val = readbuf[12];
}
ret = 0;
exit_readbuf:
kfree(readbuf);
exit:
kfree(input);
return ret;
}
static int u1_read_write_register(struct hid_device *hdev, u32 address,
u8 *read_val, u8 write_val, bool read_flag)
{
int ret, i;
u8 check_sum;
u8 *input;
u8 *readbuf;
input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL);
if (!input)
return -ENOMEM;
input[0] = U1_FEATURE_REPORT_ID;
if (read_flag) {
input[1] = U1_CMD_REGISTER_READ;
input[6] = 0x00;
} else {
input[1] = U1_CMD_REGISTER_WRITE;
input[6] = write_val;
}
put_unaligned_le32(address, input + 2);
/* Calculate the checksum */
check_sum = U1_FEATURE_REPORT_LEN_ALL;
for (i = 0; i < U1_FEATURE_REPORT_LEN - 1; i++)
check_sum += input[i];
input[7] = check_sum;
ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input,
U1_FEATURE_REPORT_LEN,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret < 0) {
dev_err(&hdev->dev, "failed to read command (%d)\n", ret);
goto exit;
}
if (read_flag) {
readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL);
if (!readbuf) {
ret = -ENOMEM;
goto exit;
}
ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf,
U1_FEATURE_REPORT_LEN,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
dev_err(&hdev->dev, "failed read register (%d)\n", ret);
kfree(readbuf);
goto exit;
}
*read_val = readbuf[6];
kfree(readbuf);
}
ret = 0;
exit:
kfree(input);
return ret;
}
static int t4_raw_event(struct alps_dev *hdata, u8 *data, int size)
{
unsigned int x, y, z;
int i;
struct t4_input_report *p_report = (struct t4_input_report *)data;
if (!data)
return 0;
for (i = 0; i < hdata->max_fingers; i++) {
x = p_report->contact[i].x_hi << 8 | p_report->contact[i].x_lo;
y = p_report->contact[i].y_hi << 8 | p_report->contact[i].y_lo;
y = hdata->y_max - y + hdata->y_min;
z = (p_report->contact[i].palm < 0x80 &&
p_report->contact[i].palm > 0) * 62;
if (x == 0xffff) {
x = 0;
y = 0;
z = 0;
}
input_mt_slot(hdata->input, i);
input_mt_report_slot_state(hdata->input,
MT_TOOL_FINGER, z != 0);
if (!z)
continue;
input_report_abs(hdata->input, ABS_MT_POSITION_X, x);
input_report_abs(hdata->input, ABS_MT_POSITION_Y, y);
input_report_abs(hdata->input, ABS_MT_PRESSURE, z);
}
input_mt_sync_frame(hdata->input);
input_report_key(hdata->input, BTN_LEFT, p_report->button);
input_sync(hdata->input);
return 1;
}
static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size)
{
unsigned int x, y, z;
int i;
short sp_x, sp_y;
if (!data)
return 0;
switch (data[0]) {
case U1_MOUSE_REPORT_ID:
break;
case U1_FEATURE_REPORT_ID:
break;
case U1_ABSOLUTE_REPORT_ID:
case U1_ABSOLUTE_REPORT_ID_SECD:
for (i = 0; i < hdata->max_fingers; i++) {
u8 *contact = &data[i * 5];
x = get_unaligned_le16(contact + 3);
y = get_unaligned_le16(contact + 5);
z = contact[7] & 0x7F;
input_mt_slot(hdata->input, i);
if (z != 0) {
input_mt_report_slot_state(hdata->input,
MT_TOOL_FINGER, 1);
input_report_abs(hdata->input,
ABS_MT_POSITION_X, x);
input_report_abs(hdata->input,
ABS_MT_POSITION_Y, y);
input_report_abs(hdata->input,
ABS_MT_PRESSURE, z);
} else {
input_mt_report_slot_inactive(hdata->input);
}
}
input_mt_sync_frame(hdata->input);
input_report_key(hdata->input, BTN_LEFT,
data[1] & 0x1);
input_report_key(hdata->input, BTN_RIGHT,
(data[1] & 0x2));
input_report_key(hdata->input, BTN_MIDDLE,
(data[1] & 0x4));
input_sync(hdata->input);
return 1;
case U1_SP_ABSOLUTE_REPORT_ID:
sp_x = get_unaligned_le16(data+2);
sp_y = get_unaligned_le16(data+4);
sp_x = sp_x / 8;
sp_y = sp_y / 8;
input_report_rel(hdata->input2, REL_X, sp_x);
input_report_rel(hdata->input2, REL_Y, sp_y);
input_report_key(hdata->input2, BTN_LEFT,
data[1] & 0x1);
input_report_key(hdata->input2, BTN_RIGHT,
(data[1] & 0x2));
input_report_key(hdata->input2, BTN_MIDDLE,
(data[1] & 0x4));
input_sync(hdata->input2);
return 1;
}
return 0;
}
static int alps_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
int ret = 0;
struct alps_dev *hdata = hid_get_drvdata(hdev);
switch (hdev->product) {
case HID_PRODUCT_ID_T4_BTNLESS:
ret = t4_raw_event(hdata, data, size);
break;
default:
ret = u1_raw_event(hdata, data, size);
break;
}
return ret;
}
static int __maybe_unused alps_post_reset(struct hid_device *hdev)
{
int ret = -1;
struct alps_dev *data = hid_get_drvdata(hdev);
switch (data->dev_type) {
case T4:
ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1,
NULL, T4_I2C_ABS, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n",
ret);
goto exit;
}
ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4,
NULL, T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n",
ret);
goto exit;
}
break;
case U1:
ret = u1_read_write_register(hdev,
ADDRESS_U1_DEV_CTRL_1, NULL,
U1_TP_ABS_MODE | U1_SP_ABS_MODE, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed to change TP mode (%d)\n",
ret);
goto exit;
}
break;
default:
break;
}
exit:
return ret;
}
static int __maybe_unused alps_post_resume(struct hid_device *hdev)
{
return alps_post_reset(hdev);
}
static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data)
{
int ret;
u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y;
u8 pitch_x, pitch_y, resolution;
/* Device initialization */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
&dev_ctrl, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret);
goto exit;
}
dev_ctrl &= ~U1_DISABLE_DEV;
dev_ctrl |= U1_TP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
NULL, dev_ctrl, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X,
&sen_line_num_x, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y,
&sen_line_num_y, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X,
&pitch_x, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y,
&pitch_y, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS,
&resolution, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret);
goto exit;
}
pri_data->x_active_len_mm =
(pitch_x * (sen_line_num_x - 1)) / 10;
pri_data->y_active_len_mm =
(pitch_y * (sen_line_num_y - 1)) / 10;
pri_data->x_max =
(resolution << 2) * (sen_line_num_x - 1);
pri_data->x_min = 1;
pri_data->y_max =
(resolution << 2) * (sen_line_num_y - 1);
pri_data->y_min = 1;
ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN,
&tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret);
goto exit;
}
if ((tmp & 0x0F) == (tmp & 0xF0) >> 4) {
pri_data->btn_cnt = (tmp & 0x0F);
} else {
/* Button pad */
pri_data->btn_cnt = 1;
}
pri_data->has_sp = 0;
/* Check StickPointer device */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP,
&tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret);
goto exit;
}
if (tmp & U1_DEVTYPE_SP_SUPPORT) {
dev_ctrl |= U1_SP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
NULL, dev_ctrl, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed SP mode (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN,
&pri_data->sp_btn_info, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret);
goto exit;
}
pri_data->has_sp = 1;
}
pri_data->max_fingers = 5;
exit:
return ret;
}
static int T4_init(struct hid_device *hdev, struct alps_dev *pri_data)
{
int ret;
u8 tmp, sen_line_num_x, sen_line_num_y;
ret = t4_read_write_register(hdev, T4_PRM_ID_CONFIG_3, &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed T4_PRM_ID_CONFIG_3 (%d)\n", ret);
goto exit;
}
sen_line_num_x = 16 + ((tmp & 0x0F) | (tmp & 0x08 ? 0xF0 : 0));
sen_line_num_y = 12 + (((tmp & 0xF0) >> 4) | (tmp & 0x80 ? 0xF0 : 0));
pri_data->x_max = sen_line_num_x * T4_COUNT_PER_ELECTRODE;
pri_data->x_min = T4_COUNT_PER_ELECTRODE;
pri_data->y_max = sen_line_num_y * T4_COUNT_PER_ELECTRODE;
pri_data->y_min = T4_COUNT_PER_ELECTRODE;
pri_data->x_active_len_mm = pri_data->y_active_len_mm = 0;
pri_data->btn_cnt = 1;
ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret);
goto exit;
}
tmp |= 0x02;
ret = t4_read_write_register(hdev, PRM_SYS_CONFIG_1, NULL, tmp, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret);
goto exit;
}
ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1,
NULL, T4_I2C_ABS, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", ret);
goto exit;
}
ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, NULL,
T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", ret);
goto exit;
}
pri_data->max_fingers = 5;
pri_data->has_sp = 0;
exit:
return ret;
}
static int alps_sp_open(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
return hid_hw_open(hid);
}
static void alps_sp_close(struct input_dev *dev)
{
struct hid_device *hid = input_get_drvdata(dev);
hid_hw_close(hid);
}
static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct alps_dev *data = hid_get_drvdata(hdev);
struct input_dev *input = hi->input, *input2;
int ret;
int res_x, res_y, i;
data->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);
switch (data->dev_type) {
case T4:
ret = T4_init(hdev, data);
break;
case U1:
ret = u1_init(hdev, data);
break;
default:
break;
}
if (ret)
goto exit;
__set_bit(EV_ABS, input->evbit);
input_set_abs_params(input, ABS_MT_POSITION_X,
data->x_min, data->x_max, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
data->y_min, data->y_max, 0, 0);
if (data->x_active_len_mm && data->y_active_len_mm) {
res_x = (data->x_max - 1) / data->x_active_len_mm;
res_y = (data->y_max - 1) / data->y_active_len_mm;
input_abs_set_res(input, ABS_MT_POSITION_X, res_x);
input_abs_set_res(input, ABS_MT_POSITION_Y, res_y);
}
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 64, 0, 0);
input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER);
__set_bit(EV_KEY, input->evbit);
if (data->btn_cnt == 1)
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
for (i = 0; i < data->btn_cnt; i++)
__set_bit(BTN_LEFT + i, input->keybit);
/* Stick device initialization */
if (data->has_sp) {
input2 = input_allocate_device();
if (!input2) {
ret = -ENOMEM;
goto exit;
}
data->input2 = input2;
input2->phys = input->phys;
input2->name = "DualPoint Stick";
input2->id.bustype = BUS_I2C;
input2->id.vendor = input->id.vendor;
input2->id.product = input->id.product;
input2->id.version = input->id.version;
input2->dev.parent = input->dev.parent;
input_set_drvdata(input2, hdev);
input2->open = alps_sp_open;
input2->close = alps_sp_close;
__set_bit(EV_KEY, input2->evbit);
data->sp_btn_cnt = (data->sp_btn_info & 0x0F);
for (i = 0; i < data->sp_btn_cnt; i++)
__set_bit(BTN_LEFT + i, input2->keybit);
__set_bit(EV_REL, input2->evbit);
__set_bit(REL_X, input2->relbit);
__set_bit(REL_Y, input2->relbit);
__set_bit(INPUT_PROP_POINTER, input2->propbit);
__set_bit(INPUT_PROP_POINTING_STICK, input2->propbit);
if (input_register_device(data->input2)) {
input_free_device(input2);
ret = -ENOENT;
goto exit;
}
}
exit:
hid_device_io_stop(hdev);
hid_hw_close(hdev);
return ret;
}
static int alps_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 int alps_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct alps_dev *data = NULL;
int ret;
data = devm_kzalloc(&hdev->dev, sizeof(struct alps_dev), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->hdev = hdev;
hid_set_drvdata(hdev, data);
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
switch (hdev->product) {
case HID_DEVICE_ID_ALPS_T4_BTNLESS:
data->dev_type = T4;
break;
case HID_DEVICE_ID_ALPS_U1_DUAL:
case HID_DEVICE_ID_ALPS_U1:
case HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY:
data->dev_type = U1;
break;
default:
data->dev_type = UNKNOWN;
}
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 alps_id[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1) },
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY) },
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) },
{ }
};
MODULE_DEVICE_TABLE(hid, alps_id);
static struct hid_driver alps_driver = {
.name = "hid-alps",
.id_table = alps_id,
.probe = alps_probe,
.raw_event = alps_raw_event,
.input_mapping = alps_input_mapping,
.input_configured = alps_input_configured,
#ifdef CONFIG_PM
.resume = alps_post_resume,
.reset_resume = alps_post_reset,
#endif
};
module_hid_driver(alps_driver);
MODULE_AUTHOR("Masaki Ota <[email protected]>");
MODULE_DESCRIPTION("ALPS HID driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-alps.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Speedlink Vicious and Divine Cezanne (USB mouse).
* Fixes "jumpy" cursor and removes nonexistent keyboard LEDS from
* the HID descriptor.
*
* Copyright (c) 2011, 2013 Stefan Kriwanek <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static const struct hid_device_id speedlink_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE)},
{ }
};
static int speedlink_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/*
* The Cezanne mouse has a second "keyboard" USB endpoint for it is
* able to map keyboard events to the button presses.
* It sends a standard keyboard report descriptor, though, whose
* LEDs we ignore.
*/
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_LED:
return -1;
}
return 0;
}
static int speedlink_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
/* No other conditions due to usage_table. */
/* This fixes the "jumpy" cursor occuring due to invalid events sent
* by the device. Some devices only send them with value==+256, others
* don't. However, catching abs(value)>=256 is restrictive enough not
* to interfere with devices that were bug-free (has been tested).
*/
if (abs(value) >= 256)
return 1;
/* Drop useless distance 0 events (on button clicks etc.) as well */
if (value == 0)
return 1;
return 0;
}
MODULE_DEVICE_TABLE(hid, speedlink_devices);
static const struct hid_usage_id speedlink_grabbed_usages[] = {
{ HID_GD_X, EV_REL, 0 },
{ HID_GD_Y, EV_REL, 1 },
{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
};
static struct hid_driver speedlink_driver = {
.name = "speedlink",
.id_table = speedlink_devices,
.usage_table = speedlink_grabbed_usages,
.input_mapping = speedlink_input_mapping,
.event = speedlink_event,
};
module_hid_driver(speedlink_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-speedlink.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for quirky Macally devices
*
* Copyright (c) 2019 Alex Henrie <[email protected]>
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Alex Henrie <[email protected]>");
MODULE_DESCRIPTION("Macally devices");
MODULE_LICENSE("GPL");
/*
* The Macally ikey keyboard says that its logical and usage maximums are both
* 101, but the power key is 102 and the equals key is 103
*/
static __u8 *macally_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
hid_info(hdev,
"fixing up Macally ikey keyboard report descriptor\n");
rdesc[53] = rdesc[59] = 0x67;
}
return rdesc;
}
static const struct hid_device_id macally_id_table[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
USB_DEVICE_ID_MACALLY_IKEY_KEYBOARD) },
{ }
};
MODULE_DEVICE_TABLE(hid, macally_id_table);
static struct hid_driver macally_driver = {
.name = "macally",
.id_table = macally_id_table,
.report_fixup = macally_report_fixup,
};
module_hid_driver(macally_driver);
| linux-master | drivers/hid/hid-macally.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Sony DualSense(TM) controller.
*
* Copyright (c) 2020-2022 Sony Interactive Entertainment
*/
#include <linux/bits.h>
#include <linux/crc32.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/idr.h>
#include <linux/input/mt.h>
#include <linux/leds.h>
#include <linux/led-class-multicolor.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include "hid-ids.h"
/* List of connected playstation devices. */
static DEFINE_MUTEX(ps_devices_lock);
static LIST_HEAD(ps_devices_list);
static DEFINE_IDA(ps_player_id_allocator);
#define HID_PLAYSTATION_VERSION_PATCH 0x8000
/* Base class for playstation devices. */
struct ps_device {
struct list_head list;
struct hid_device *hdev;
spinlock_t lock;
uint32_t player_id;
struct power_supply_desc battery_desc;
struct power_supply *battery;
uint8_t battery_capacity;
int battery_status;
const char *input_dev_name; /* Name of primary input device. */
uint8_t mac_address[6]; /* Note: stored in little endian order. */
uint32_t hw_version;
uint32_t fw_version;
int (*parse_report)(struct ps_device *dev, struct hid_report *report, u8 *data, int size);
void (*remove)(struct ps_device *dev);
};
/* Calibration data for playstation motion sensors. */
struct ps_calibration_data {
int abs_code;
short bias;
int sens_numer;
int sens_denom;
};
struct ps_led_info {
const char *name;
const char *color;
int max_brightness;
enum led_brightness (*brightness_get)(struct led_classdev *cdev);
int (*brightness_set)(struct led_classdev *cdev, enum led_brightness);
int (*blink_set)(struct led_classdev *led, unsigned long *on, unsigned long *off);
};
/* Seed values for DualShock4 / DualSense CRC32 for different report types. */
#define PS_INPUT_CRC32_SEED 0xA1
#define PS_OUTPUT_CRC32_SEED 0xA2
#define PS_FEATURE_CRC32_SEED 0xA3
#define DS_INPUT_REPORT_USB 0x01
#define DS_INPUT_REPORT_USB_SIZE 64
#define DS_INPUT_REPORT_BT 0x31
#define DS_INPUT_REPORT_BT_SIZE 78
#define DS_OUTPUT_REPORT_USB 0x02
#define DS_OUTPUT_REPORT_USB_SIZE 63
#define DS_OUTPUT_REPORT_BT 0x31
#define DS_OUTPUT_REPORT_BT_SIZE 78
#define DS_FEATURE_REPORT_CALIBRATION 0x05
#define DS_FEATURE_REPORT_CALIBRATION_SIZE 41
#define DS_FEATURE_REPORT_PAIRING_INFO 0x09
#define DS_FEATURE_REPORT_PAIRING_INFO_SIZE 20
#define DS_FEATURE_REPORT_FIRMWARE_INFO 0x20
#define DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE 64
/* Button masks for DualSense input report. */
#define DS_BUTTONS0_HAT_SWITCH GENMASK(3, 0)
#define DS_BUTTONS0_SQUARE BIT(4)
#define DS_BUTTONS0_CROSS BIT(5)
#define DS_BUTTONS0_CIRCLE BIT(6)
#define DS_BUTTONS0_TRIANGLE BIT(7)
#define DS_BUTTONS1_L1 BIT(0)
#define DS_BUTTONS1_R1 BIT(1)
#define DS_BUTTONS1_L2 BIT(2)
#define DS_BUTTONS1_R2 BIT(3)
#define DS_BUTTONS1_CREATE BIT(4)
#define DS_BUTTONS1_OPTIONS BIT(5)
#define DS_BUTTONS1_L3 BIT(6)
#define DS_BUTTONS1_R3 BIT(7)
#define DS_BUTTONS2_PS_HOME BIT(0)
#define DS_BUTTONS2_TOUCHPAD BIT(1)
#define DS_BUTTONS2_MIC_MUTE BIT(2)
/* Status field of DualSense input report. */
#define DS_STATUS_BATTERY_CAPACITY GENMASK(3, 0)
#define DS_STATUS_CHARGING GENMASK(7, 4)
#define DS_STATUS_CHARGING_SHIFT 4
/* Feature version from DualSense Firmware Info report. */
#define DS_FEATURE_VERSION(major, minor) ((major & 0xff) << 8 | (minor & 0xff))
/*
* Status of a DualSense touch point contact.
* Contact IDs, with highest bit set are 'inactive'
* and any associated data is then invalid.
*/
#define DS_TOUCH_POINT_INACTIVE BIT(7)
/* Magic value required in tag field of Bluetooth output report. */
#define DS_OUTPUT_TAG 0x10
/* Flags for DualSense output report. */
#define DS_OUTPUT_VALID_FLAG0_COMPATIBLE_VIBRATION BIT(0)
#define DS_OUTPUT_VALID_FLAG0_HAPTICS_SELECT BIT(1)
#define DS_OUTPUT_VALID_FLAG1_MIC_MUTE_LED_CONTROL_ENABLE BIT(0)
#define DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE BIT(1)
#define DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE BIT(2)
#define DS_OUTPUT_VALID_FLAG1_RELEASE_LEDS BIT(3)
#define DS_OUTPUT_VALID_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE BIT(4)
#define DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE BIT(1)
#define DS_OUTPUT_VALID_FLAG2_COMPATIBLE_VIBRATION2 BIT(2)
#define DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE BIT(4)
#define DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT BIT(1)
/* DualSense hardware limits */
#define DS_ACC_RES_PER_G 8192
#define DS_ACC_RANGE (4*DS_ACC_RES_PER_G)
#define DS_GYRO_RES_PER_DEG_S 1024
#define DS_GYRO_RANGE (2048*DS_GYRO_RES_PER_DEG_S)
#define DS_TOUCHPAD_WIDTH 1920
#define DS_TOUCHPAD_HEIGHT 1080
struct dualsense {
struct ps_device base;
struct input_dev *gamepad;
struct input_dev *sensors;
struct input_dev *touchpad;
/* Update version is used as a feature/capability version. */
uint16_t update_version;
/* Calibration data for accelerometer and gyroscope. */
struct ps_calibration_data accel_calib_data[3];
struct ps_calibration_data gyro_calib_data[3];
/* Timestamp for sensor data */
bool sensor_timestamp_initialized;
uint32_t prev_sensor_timestamp;
uint32_t sensor_timestamp_us;
/* Compatible rumble state */
bool use_vibration_v2;
bool update_rumble;
uint8_t motor_left;
uint8_t motor_right;
/* RGB lightbar */
struct led_classdev_mc lightbar;
bool update_lightbar;
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
/* Microphone */
bool update_mic_mute;
bool mic_muted;
bool last_btn_mic_state;
/* Player leds */
bool update_player_leds;
uint8_t player_leds_state;
struct led_classdev player_leds[5];
struct work_struct output_worker;
bool output_worker_initialized;
void *output_report_dmabuf;
uint8_t output_seq; /* Sequence number for output report. */
};
struct dualsense_touch_point {
uint8_t contact;
uint8_t x_lo;
uint8_t x_hi:4, y_lo:4;
uint8_t y_hi;
} __packed;
static_assert(sizeof(struct dualsense_touch_point) == 4);
/* Main DualSense input report excluding any BT/USB specific headers. */
struct dualsense_input_report {
uint8_t x, y;
uint8_t rx, ry;
uint8_t z, rz;
uint8_t seq_number;
uint8_t buttons[4];
uint8_t reserved[4];
/* Motion sensors */
__le16 gyro[3]; /* x, y, z */
__le16 accel[3]; /* x, y, z */
__le32 sensor_timestamp;
uint8_t reserved2;
/* Touchpad */
struct dualsense_touch_point points[2];
uint8_t reserved3[12];
uint8_t status;
uint8_t reserved4[10];
} __packed;
/* Common input report size shared equals the size of the USB report minus 1 byte for ReportID. */
static_assert(sizeof(struct dualsense_input_report) == DS_INPUT_REPORT_USB_SIZE - 1);
/* Common data between DualSense BT/USB main output report. */
struct dualsense_output_report_common {
uint8_t valid_flag0;
uint8_t valid_flag1;
/* For DualShock 4 compatibility mode. */
uint8_t motor_right;
uint8_t motor_left;
/* Audio controls */
uint8_t reserved[4];
uint8_t mute_button_led;
uint8_t power_save_control;
uint8_t reserved2[28];
/* LEDs and lightbar */
uint8_t valid_flag2;
uint8_t reserved3[2];
uint8_t lightbar_setup;
uint8_t led_brightness;
uint8_t player_leds;
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
} __packed;
static_assert(sizeof(struct dualsense_output_report_common) == 47);
struct dualsense_output_report_bt {
uint8_t report_id; /* 0x31 */
uint8_t seq_tag;
uint8_t tag;
struct dualsense_output_report_common common;
uint8_t reserved[24];
__le32 crc32;
} __packed;
static_assert(sizeof(struct dualsense_output_report_bt) == DS_OUTPUT_REPORT_BT_SIZE);
struct dualsense_output_report_usb {
uint8_t report_id; /* 0x02 */
struct dualsense_output_report_common common;
uint8_t reserved[15];
} __packed;
static_assert(sizeof(struct dualsense_output_report_usb) == DS_OUTPUT_REPORT_USB_SIZE);
/*
* The DualSense has a main output report used to control most features. It is
* largely the same between Bluetooth and USB except for different headers and CRC.
* This structure hide the differences between the two to simplify sending output reports.
*/
struct dualsense_output_report {
uint8_t *data; /* Start of data */
uint8_t len; /* Size of output report */
/* Points to Bluetooth data payload in case for a Bluetooth report else NULL. */
struct dualsense_output_report_bt *bt;
/* Points to USB data payload in case for a USB report else NULL. */
struct dualsense_output_report_usb *usb;
/* Points to common section of report, so past any headers. */
struct dualsense_output_report_common *common;
};
#define DS4_INPUT_REPORT_USB 0x01
#define DS4_INPUT_REPORT_USB_SIZE 64
#define DS4_INPUT_REPORT_BT 0x11
#define DS4_INPUT_REPORT_BT_SIZE 78
#define DS4_OUTPUT_REPORT_USB 0x05
#define DS4_OUTPUT_REPORT_USB_SIZE 32
#define DS4_OUTPUT_REPORT_BT 0x11
#define DS4_OUTPUT_REPORT_BT_SIZE 78
#define DS4_FEATURE_REPORT_CALIBRATION 0x02
#define DS4_FEATURE_REPORT_CALIBRATION_SIZE 37
#define DS4_FEATURE_REPORT_CALIBRATION_BT 0x05
#define DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE 41
#define DS4_FEATURE_REPORT_FIRMWARE_INFO 0xa3
#define DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE 49
#define DS4_FEATURE_REPORT_PAIRING_INFO 0x12
#define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE 16
/*
* Status of a DualShock4 touch point contact.
* Contact IDs, with highest bit set are 'inactive'
* and any associated data is then invalid.
*/
#define DS4_TOUCH_POINT_INACTIVE BIT(7)
/* Status field of DualShock4 input report. */
#define DS4_STATUS0_BATTERY_CAPACITY GENMASK(3, 0)
#define DS4_STATUS0_CABLE_STATE BIT(4)
/* Battery status within batery_status field. */
#define DS4_BATTERY_STATUS_FULL 11
/* Status1 bit2 contains dongle connection state:
* 0 = connectd
* 1 = disconnected
*/
#define DS4_STATUS1_DONGLE_STATE BIT(2)
/* The lower 6 bits of hw_control of the Bluetooth main output report
* control the interval at which Dualshock 4 reports data:
* 0x00 - 1ms
* 0x01 - 1ms
* 0x02 - 2ms
* 0x3E - 62ms
* 0x3F - disabled
*/
#define DS4_OUTPUT_HWCTL_BT_POLL_MASK 0x3F
/* Default to 4ms poll interval, which is same as USB (not adjustable). */
#define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4
#define DS4_OUTPUT_HWCTL_CRC32 0x40
#define DS4_OUTPUT_HWCTL_HID 0x80
/* Flags for DualShock4 output report. */
#define DS4_OUTPUT_VALID_FLAG0_MOTOR 0x01
#define DS4_OUTPUT_VALID_FLAG0_LED 0x02
#define DS4_OUTPUT_VALID_FLAG0_LED_BLINK 0x04
/* DualShock4 hardware limits */
#define DS4_ACC_RES_PER_G 8192
#define DS4_ACC_RANGE (4*DS_ACC_RES_PER_G)
#define DS4_GYRO_RES_PER_DEG_S 1024
#define DS4_GYRO_RANGE (2048*DS_GYRO_RES_PER_DEG_S)
#define DS4_LIGHTBAR_MAX_BLINK 255 /* 255 centiseconds */
#define DS4_TOUCHPAD_WIDTH 1920
#define DS4_TOUCHPAD_HEIGHT 942
enum dualshock4_dongle_state {
DONGLE_DISCONNECTED,
DONGLE_CALIBRATING,
DONGLE_CONNECTED,
DONGLE_DISABLED
};
struct dualshock4 {
struct ps_device base;
struct input_dev *gamepad;
struct input_dev *sensors;
struct input_dev *touchpad;
/* Calibration data for accelerometer and gyroscope. */
struct ps_calibration_data accel_calib_data[3];
struct ps_calibration_data gyro_calib_data[3];
/* Only used on dongle to track state transitions. */
enum dualshock4_dongle_state dongle_state;
/* Used during calibration. */
struct work_struct dongle_hotplug_worker;
/* Timestamp for sensor data */
bool sensor_timestamp_initialized;
uint32_t prev_sensor_timestamp;
uint32_t sensor_timestamp_us;
/* Bluetooth poll interval */
bool update_bt_poll_interval;
uint8_t bt_poll_interval;
bool update_rumble;
uint8_t motor_left;
uint8_t motor_right;
/* Lightbar leds */
bool update_lightbar;
bool update_lightbar_blink;
bool lightbar_enabled; /* For use by global LED control. */
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
uint8_t lightbar_blink_on; /* In increments of 10ms. */
uint8_t lightbar_blink_off; /* In increments of 10ms. */
struct led_classdev lightbar_leds[4];
struct work_struct output_worker;
bool output_worker_initialized;
void *output_report_dmabuf;
};
struct dualshock4_touch_point {
uint8_t contact;
uint8_t x_lo;
uint8_t x_hi:4, y_lo:4;
uint8_t y_hi;
} __packed;
static_assert(sizeof(struct dualshock4_touch_point) == 4);
struct dualshock4_touch_report {
uint8_t timestamp;
struct dualshock4_touch_point points[2];
} __packed;
static_assert(sizeof(struct dualshock4_touch_report) == 9);
/* Main DualShock4 input report excluding any BT/USB specific headers. */
struct dualshock4_input_report_common {
uint8_t x, y;
uint8_t rx, ry;
uint8_t buttons[3];
uint8_t z, rz;
/* Motion sensors */
__le16 sensor_timestamp;
uint8_t sensor_temperature;
__le16 gyro[3]; /* x, y, z */
__le16 accel[3]; /* x, y, z */
uint8_t reserved2[5];
uint8_t status[2];
uint8_t reserved3;
} __packed;
static_assert(sizeof(struct dualshock4_input_report_common) == 32);
struct dualshock4_input_report_usb {
uint8_t report_id; /* 0x01 */
struct dualshock4_input_report_common common;
uint8_t num_touch_reports;
struct dualshock4_touch_report touch_reports[3];
uint8_t reserved[3];
} __packed;
static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE);
struct dualshock4_input_report_bt {
uint8_t report_id; /* 0x11 */
uint8_t reserved[2];
struct dualshock4_input_report_common common;
uint8_t num_touch_reports;
struct dualshock4_touch_report touch_reports[4]; /* BT has 4 compared to 3 for USB */
uint8_t reserved2[2];
__le32 crc32;
} __packed;
static_assert(sizeof(struct dualshock4_input_report_bt) == DS4_INPUT_REPORT_BT_SIZE);
/* Common data between Bluetooth and USB DualShock4 output reports. */
struct dualshock4_output_report_common {
uint8_t valid_flag0;
uint8_t valid_flag1;
uint8_t reserved;
uint8_t motor_right;
uint8_t motor_left;
uint8_t lightbar_red;
uint8_t lightbar_green;
uint8_t lightbar_blue;
uint8_t lightbar_blink_on;
uint8_t lightbar_blink_off;
} __packed;
struct dualshock4_output_report_usb {
uint8_t report_id; /* 0x5 */
struct dualshock4_output_report_common common;
uint8_t reserved[21];
} __packed;
static_assert(sizeof(struct dualshock4_output_report_usb) == DS4_OUTPUT_REPORT_USB_SIZE);
struct dualshock4_output_report_bt {
uint8_t report_id; /* 0x11 */
uint8_t hw_control;
uint8_t audio_control;
struct dualshock4_output_report_common common;
uint8_t reserved[61];
__le32 crc32;
} __packed;
static_assert(sizeof(struct dualshock4_output_report_bt) == DS4_OUTPUT_REPORT_BT_SIZE);
/*
* The DualShock4 has a main output report used to control most features. It is
* largely the same between Bluetooth and USB except for different headers and CRC.
* This structure hide the differences between the two to simplify sending output reports.
*/
struct dualshock4_output_report {
uint8_t *data; /* Start of data */
uint8_t len; /* Size of output report */
/* Points to Bluetooth data payload in case for a Bluetooth report else NULL. */
struct dualshock4_output_report_bt *bt;
/* Points to USB data payload in case for a USB report else NULL. */
struct dualshock4_output_report_usb *usb;
/* Points to common section of report, so past any headers. */
struct dualshock4_output_report_common *common;
};
/*
* Common gamepad buttons across DualShock 3 / 4 and DualSense.
* Note: for device with a touchpad, touchpad button is not included
* as it will be part of the touchpad device.
*/
static const int ps_gamepad_buttons[] = {
BTN_WEST, /* Square */
BTN_NORTH, /* Triangle */
BTN_EAST, /* Circle */
BTN_SOUTH, /* Cross */
BTN_TL, /* L1 */
BTN_TR, /* R1 */
BTN_TL2, /* L2 */
BTN_TR2, /* R2 */
BTN_SELECT, /* Create (PS5) / Share (PS4) */
BTN_START, /* Option */
BTN_THUMBL, /* L3 */
BTN_THUMBR, /* R3 */
BTN_MODE, /* PS Home */
};
static const struct {int x; int y; } ps_gamepad_hat_mapping[] = {
{0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1},
{0, 0},
};
static int dualshock4_get_calibration_data(struct dualshock4 *ds4);
static inline void dualsense_schedule_work(struct dualsense *ds);
static inline void dualshock4_schedule_work(struct dualshock4 *ds4);
static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue);
static void dualshock4_set_default_lightbar_colors(struct dualshock4 *ds4);
/*
* Add a new ps_device to ps_devices if it doesn't exist.
* Return error on duplicate device, which can happen if the same
* device is connected using both Bluetooth and USB.
*/
static int ps_devices_list_add(struct ps_device *dev)
{
struct ps_device *entry;
mutex_lock(&ps_devices_lock);
list_for_each_entry(entry, &ps_devices_list, list) {
if (!memcmp(entry->mac_address, dev->mac_address, sizeof(dev->mac_address))) {
hid_err(dev->hdev, "Duplicate device found for MAC address %pMR.\n",
dev->mac_address);
mutex_unlock(&ps_devices_lock);
return -EEXIST;
}
}
list_add_tail(&dev->list, &ps_devices_list);
mutex_unlock(&ps_devices_lock);
return 0;
}
static int ps_devices_list_remove(struct ps_device *dev)
{
mutex_lock(&ps_devices_lock);
list_del(&dev->list);
mutex_unlock(&ps_devices_lock);
return 0;
}
static int ps_device_set_player_id(struct ps_device *dev)
{
int ret = ida_alloc(&ps_player_id_allocator, GFP_KERNEL);
if (ret < 0)
return ret;
dev->player_id = ret;
return 0;
}
static void ps_device_release_player_id(struct ps_device *dev)
{
ida_free(&ps_player_id_allocator, dev->player_id);
dev->player_id = U32_MAX;
}
static struct input_dev *ps_allocate_input_dev(struct hid_device *hdev, const char *name_suffix)
{
struct input_dev *input_dev;
input_dev = devm_input_allocate_device(&hdev->dev);
if (!input_dev)
return ERR_PTR(-ENOMEM);
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->uniq = hdev->uniq;
if (name_suffix) {
input_dev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s %s", hdev->name,
name_suffix);
if (!input_dev->name)
return ERR_PTR(-ENOMEM);
} else {
input_dev->name = hdev->name;
}
input_set_drvdata(input_dev, hdev);
return input_dev;
}
static enum power_supply_property ps_power_supply_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
};
static int ps_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct ps_device *dev = power_supply_get_drvdata(psy);
uint8_t battery_capacity;
int battery_status;
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&dev->lock, flags);
battery_capacity = dev->battery_capacity;
battery_status = dev->battery_status;
spin_unlock_irqrestore(&dev->lock, flags);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = battery_status;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = battery_capacity;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int ps_device_register_battery(struct ps_device *dev)
{
struct power_supply *battery;
struct power_supply_config battery_cfg = { .drv_data = dev };
int ret;
dev->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
dev->battery_desc.properties = ps_power_supply_props;
dev->battery_desc.num_properties = ARRAY_SIZE(ps_power_supply_props);
dev->battery_desc.get_property = ps_battery_get_property;
dev->battery_desc.name = devm_kasprintf(&dev->hdev->dev, GFP_KERNEL,
"ps-controller-battery-%pMR", dev->mac_address);
if (!dev->battery_desc.name)
return -ENOMEM;
battery = devm_power_supply_register(&dev->hdev->dev, &dev->battery_desc, &battery_cfg);
if (IS_ERR(battery)) {
ret = PTR_ERR(battery);
hid_err(dev->hdev, "Unable to register battery device: %d\n", ret);
return ret;
}
dev->battery = battery;
ret = power_supply_powers(dev->battery, &dev->hdev->dev);
if (ret) {
hid_err(dev->hdev, "Unable to activate battery device: %d\n", ret);
return ret;
}
return 0;
}
/* Compute crc32 of HID data and compare against expected CRC. */
static bool ps_check_crc32(uint8_t seed, uint8_t *data, size_t len, uint32_t report_crc)
{
uint32_t crc;
crc = crc32_le(0xFFFFFFFF, &seed, 1);
crc = ~crc32_le(crc, data, len);
return crc == report_crc;
}
static struct input_dev *ps_gamepad_create(struct hid_device *hdev,
int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
{
struct input_dev *gamepad;
unsigned int i;
int ret;
gamepad = ps_allocate_input_dev(hdev, NULL);
if (IS_ERR(gamepad))
return ERR_CAST(gamepad);
input_set_abs_params(gamepad, ABS_X, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_Y, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_Z, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_RX, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_RY, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_RZ, 0, 255, 0, 0);
input_set_abs_params(gamepad, ABS_HAT0X, -1, 1, 0, 0);
input_set_abs_params(gamepad, ABS_HAT0Y, -1, 1, 0, 0);
for (i = 0; i < ARRAY_SIZE(ps_gamepad_buttons); i++)
input_set_capability(gamepad, EV_KEY, ps_gamepad_buttons[i]);
#if IS_ENABLED(CONFIG_PLAYSTATION_FF)
if (play_effect) {
input_set_capability(gamepad, EV_FF, FF_RUMBLE);
input_ff_create_memless(gamepad, NULL, play_effect);
}
#endif
ret = input_register_device(gamepad);
if (ret)
return ERR_PTR(ret);
return gamepad;
}
static int ps_get_report(struct hid_device *hdev, uint8_t report_id, uint8_t *buf, size_t size,
bool check_crc)
{
int ret;
ret = hid_hw_raw_request(hdev, report_id, buf, size, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "Failed to retrieve feature with reportID %d: %d\n", report_id, ret);
return ret;
}
if (ret != size) {
hid_err(hdev, "Invalid byte count transferred, expected %zu got %d\n", size, ret);
return -EINVAL;
}
if (buf[0] != report_id) {
hid_err(hdev, "Invalid reportID received, expected %d got %d\n", report_id, buf[0]);
return -EINVAL;
}
if (hdev->bus == BUS_BLUETOOTH && check_crc) {
/* Last 4 bytes contains crc32. */
uint8_t crc_offset = size - 4;
uint32_t report_crc = get_unaligned_le32(&buf[crc_offset]);
if (!ps_check_crc32(PS_FEATURE_CRC32_SEED, buf, crc_offset, report_crc)) {
hid_err(hdev, "CRC check failed for reportID=%d\n", report_id);
return -EILSEQ;
}
}
return 0;
}
static int ps_led_register(struct ps_device *ps_dev, struct led_classdev *led,
const struct ps_led_info *led_info)
{
int ret;
if (led_info->name) {
led->name = devm_kasprintf(&ps_dev->hdev->dev, GFP_KERNEL,
"%s:%s:%s", ps_dev->input_dev_name, led_info->color, led_info->name);
} else {
/* Backwards compatible mode for hid-sony, but not compliant with LED class spec. */
led->name = devm_kasprintf(&ps_dev->hdev->dev, GFP_KERNEL,
"%s:%s", ps_dev->input_dev_name, led_info->color);
}
if (!led->name)
return -ENOMEM;
led->brightness = 0;
led->max_brightness = led_info->max_brightness;
led->flags = LED_CORE_SUSPENDRESUME;
led->brightness_get = led_info->brightness_get;
led->brightness_set_blocking = led_info->brightness_set;
led->blink_set = led_info->blink_set;
ret = devm_led_classdev_register(&ps_dev->hdev->dev, led);
if (ret) {
hid_err(ps_dev->hdev, "Failed to register LED %s: %d\n", led_info->name, ret);
return ret;
}
return 0;
}
/* Register a DualSense/DualShock4 RGB lightbar represented by a multicolor LED. */
static int ps_lightbar_register(struct ps_device *ps_dev, struct led_classdev_mc *lightbar_mc_dev,
int (*brightness_set)(struct led_classdev *, enum led_brightness))
{
struct hid_device *hdev = ps_dev->hdev;
struct mc_subled *mc_led_info;
struct led_classdev *led_cdev;
int ret;
mc_led_info = devm_kmalloc_array(&hdev->dev, 3, sizeof(*mc_led_info),
GFP_KERNEL | __GFP_ZERO);
if (!mc_led_info)
return -ENOMEM;
mc_led_info[0].color_index = LED_COLOR_ID_RED;
mc_led_info[1].color_index = LED_COLOR_ID_GREEN;
mc_led_info[2].color_index = LED_COLOR_ID_BLUE;
lightbar_mc_dev->subled_info = mc_led_info;
lightbar_mc_dev->num_colors = 3;
led_cdev = &lightbar_mc_dev->led_cdev;
led_cdev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s:rgb:indicator",
ps_dev->input_dev_name);
if (!led_cdev->name)
return -ENOMEM;
led_cdev->brightness = 255;
led_cdev->max_brightness = 255;
led_cdev->brightness_set_blocking = brightness_set;
ret = devm_led_classdev_multicolor_register(&hdev->dev, lightbar_mc_dev);
if (ret < 0) {
hid_err(hdev, "Cannot register multicolor LED device\n");
return ret;
}
return 0;
}
static struct input_dev *ps_sensors_create(struct hid_device *hdev, int accel_range, int accel_res,
int gyro_range, int gyro_res)
{
struct input_dev *sensors;
int ret;
sensors = ps_allocate_input_dev(hdev, "Motion Sensors");
if (IS_ERR(sensors))
return ERR_CAST(sensors);
__set_bit(INPUT_PROP_ACCELEROMETER, sensors->propbit);
__set_bit(EV_MSC, sensors->evbit);
__set_bit(MSC_TIMESTAMP, sensors->mscbit);
/* Accelerometer */
input_set_abs_params(sensors, ABS_X, -accel_range, accel_range, 16, 0);
input_set_abs_params(sensors, ABS_Y, -accel_range, accel_range, 16, 0);
input_set_abs_params(sensors, ABS_Z, -accel_range, accel_range, 16, 0);
input_abs_set_res(sensors, ABS_X, accel_res);
input_abs_set_res(sensors, ABS_Y, accel_res);
input_abs_set_res(sensors, ABS_Z, accel_res);
/* Gyroscope */
input_set_abs_params(sensors, ABS_RX, -gyro_range, gyro_range, 16, 0);
input_set_abs_params(sensors, ABS_RY, -gyro_range, gyro_range, 16, 0);
input_set_abs_params(sensors, ABS_RZ, -gyro_range, gyro_range, 16, 0);
input_abs_set_res(sensors, ABS_RX, gyro_res);
input_abs_set_res(sensors, ABS_RY, gyro_res);
input_abs_set_res(sensors, ABS_RZ, gyro_res);
ret = input_register_device(sensors);
if (ret)
return ERR_PTR(ret);
return sensors;
}
static struct input_dev *ps_touchpad_create(struct hid_device *hdev, int width, int height,
unsigned int num_contacts)
{
struct input_dev *touchpad;
int ret;
touchpad = ps_allocate_input_dev(hdev, "Touchpad");
if (IS_ERR(touchpad))
return ERR_CAST(touchpad);
/* Map button underneath touchpad to BTN_LEFT. */
input_set_capability(touchpad, EV_KEY, BTN_LEFT);
__set_bit(INPUT_PROP_BUTTONPAD, touchpad->propbit);
input_set_abs_params(touchpad, ABS_MT_POSITION_X, 0, width - 1, 0, 0);
input_set_abs_params(touchpad, ABS_MT_POSITION_Y, 0, height - 1, 0, 0);
ret = input_mt_init_slots(touchpad, num_contacts, INPUT_MT_POINTER);
if (ret)
return ERR_PTR(ret);
ret = input_register_device(touchpad);
if (ret)
return ERR_PTR(ret);
return touchpad;
}
static ssize_t firmware_version_show(struct device *dev,
struct device_attribute
*attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ps_device *ps_dev = hid_get_drvdata(hdev);
return sysfs_emit(buf, "0x%08x\n", ps_dev->fw_version);
}
static DEVICE_ATTR_RO(firmware_version);
static ssize_t hardware_version_show(struct device *dev,
struct device_attribute
*attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct ps_device *ps_dev = hid_get_drvdata(hdev);
return sysfs_emit(buf, "0x%08x\n", ps_dev->hw_version);
}
static DEVICE_ATTR_RO(hardware_version);
static struct attribute *ps_device_attrs[] = {
&dev_attr_firmware_version.attr,
&dev_attr_hardware_version.attr,
NULL
};
ATTRIBUTE_GROUPS(ps_device);
static int dualsense_get_calibration_data(struct dualsense *ds)
{
struct hid_device *hdev = ds->base.hdev;
short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
short gyro_speed_plus, gyro_speed_minus;
short acc_x_plus, acc_x_minus;
short acc_y_plus, acc_y_minus;
short acc_z_plus, acc_z_minus;
int speed_2x;
int range_2g;
int ret = 0;
int i;
uint8_t *buf;
buf = kzalloc(DS_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_CALIBRATION, buf,
DS_FEATURE_REPORT_CALIBRATION_SIZE, true);
if (ret) {
hid_err(ds->base.hdev, "Failed to retrieve DualSense calibration info: %d\n", ret);
goto err_free;
}
gyro_pitch_bias = get_unaligned_le16(&buf[1]);
gyro_yaw_bias = get_unaligned_le16(&buf[3]);
gyro_roll_bias = get_unaligned_le16(&buf[5]);
gyro_pitch_plus = get_unaligned_le16(&buf[7]);
gyro_pitch_minus = get_unaligned_le16(&buf[9]);
gyro_yaw_plus = get_unaligned_le16(&buf[11]);
gyro_yaw_minus = get_unaligned_le16(&buf[13]);
gyro_roll_plus = get_unaligned_le16(&buf[15]);
gyro_roll_minus = get_unaligned_le16(&buf[17]);
gyro_speed_plus = get_unaligned_le16(&buf[19]);
gyro_speed_minus = get_unaligned_le16(&buf[21]);
acc_x_plus = get_unaligned_le16(&buf[23]);
acc_x_minus = get_unaligned_le16(&buf[25]);
acc_y_plus = get_unaligned_le16(&buf[27]);
acc_y_minus = get_unaligned_le16(&buf[29]);
acc_z_plus = get_unaligned_le16(&buf[31]);
acc_z_minus = get_unaligned_le16(&buf[33]);
/*
* Set gyroscope calibration and normalization parameters.
* Data values will be normalized to 1/DS_GYRO_RES_PER_DEG_S degree/s.
*/
speed_2x = (gyro_speed_plus + gyro_speed_minus);
ds->gyro_calib_data[0].abs_code = ABS_RX;
ds->gyro_calib_data[0].bias = 0;
ds->gyro_calib_data[0].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
ds->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) +
abs(gyro_pitch_minus - gyro_pitch_bias);
ds->gyro_calib_data[1].abs_code = ABS_RY;
ds->gyro_calib_data[1].bias = 0;
ds->gyro_calib_data[1].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
ds->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) +
abs(gyro_yaw_minus - gyro_yaw_bias);
ds->gyro_calib_data[2].abs_code = ABS_RZ;
ds->gyro_calib_data[2].bias = 0;
ds->gyro_calib_data[2].sens_numer = speed_2x*DS_GYRO_RES_PER_DEG_S;
ds->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) +
abs(gyro_roll_minus - gyro_roll_bias);
/*
* Sanity check gyro calibration data. This is needed to prevent crashes
* during report handling of virtual, clone or broken devices not implementing
* calibration data properly.
*/
for (i = 0; i < ARRAY_SIZE(ds->gyro_calib_data); i++) {
if (ds->gyro_calib_data[i].sens_denom == 0) {
hid_warn(hdev, "Invalid gyro calibration data for axis (%d), disabling calibration.",
ds->gyro_calib_data[i].abs_code);
ds->gyro_calib_data[i].bias = 0;
ds->gyro_calib_data[i].sens_numer = DS_GYRO_RANGE;
ds->gyro_calib_data[i].sens_denom = S16_MAX;
}
}
/*
* Set accelerometer calibration and normalization parameters.
* Data values will be normalized to 1/DS_ACC_RES_PER_G g.
*/
range_2g = acc_x_plus - acc_x_minus;
ds->accel_calib_data[0].abs_code = ABS_X;
ds->accel_calib_data[0].bias = acc_x_plus - range_2g / 2;
ds->accel_calib_data[0].sens_numer = 2*DS_ACC_RES_PER_G;
ds->accel_calib_data[0].sens_denom = range_2g;
range_2g = acc_y_plus - acc_y_minus;
ds->accel_calib_data[1].abs_code = ABS_Y;
ds->accel_calib_data[1].bias = acc_y_plus - range_2g / 2;
ds->accel_calib_data[1].sens_numer = 2*DS_ACC_RES_PER_G;
ds->accel_calib_data[1].sens_denom = range_2g;
range_2g = acc_z_plus - acc_z_minus;
ds->accel_calib_data[2].abs_code = ABS_Z;
ds->accel_calib_data[2].bias = acc_z_plus - range_2g / 2;
ds->accel_calib_data[2].sens_numer = 2*DS_ACC_RES_PER_G;
ds->accel_calib_data[2].sens_denom = range_2g;
/*
* Sanity check accelerometer calibration data. This is needed to prevent crashes
* during report handling of virtual, clone or broken devices not implementing calibration
* data properly.
*/
for (i = 0; i < ARRAY_SIZE(ds->accel_calib_data); i++) {
if (ds->accel_calib_data[i].sens_denom == 0) {
hid_warn(hdev, "Invalid accelerometer calibration data for axis (%d), disabling calibration.",
ds->accel_calib_data[i].abs_code);
ds->accel_calib_data[i].bias = 0;
ds->accel_calib_data[i].sens_numer = DS_ACC_RANGE;
ds->accel_calib_data[i].sens_denom = S16_MAX;
}
}
err_free:
kfree(buf);
return ret;
}
static int dualsense_get_firmware_info(struct dualsense *ds)
{
uint8_t *buf;
int ret;
buf = kzalloc(DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_FIRMWARE_INFO, buf,
DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE, true);
if (ret) {
hid_err(ds->base.hdev, "Failed to retrieve DualSense firmware info: %d\n", ret);
goto err_free;
}
ds->base.hw_version = get_unaligned_le32(&buf[24]);
ds->base.fw_version = get_unaligned_le32(&buf[28]);
/* Update version is some kind of feature version. It is distinct from
* the firmware version as there can be many different variations of a
* controller over time with the same physical shell, but with different
* PCBs and other internal changes. The update version (internal name) is
* used as a means to detect what features are available and change behavior.
* Note: the version is different between DualSense and DualSense Edge.
*/
ds->update_version = get_unaligned_le16(&buf[44]);
err_free:
kfree(buf);
return ret;
}
static int dualsense_get_mac_address(struct dualsense *ds)
{
uint8_t *buf;
int ret = 0;
buf = kzalloc(DS_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_PAIRING_INFO, buf,
DS_FEATURE_REPORT_PAIRING_INFO_SIZE, true);
if (ret) {
hid_err(ds->base.hdev, "Failed to retrieve DualSense pairing info: %d\n", ret);
goto err_free;
}
memcpy(ds->base.mac_address, &buf[1], sizeof(ds->base.mac_address));
err_free:
kfree(buf);
return ret;
}
static int dualsense_lightbar_set_brightness(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev);
struct dualsense *ds = container_of(mc_cdev, struct dualsense, lightbar);
uint8_t red, green, blue;
led_mc_calc_color_components(mc_cdev, brightness);
red = mc_cdev->subled_info[0].brightness;
green = mc_cdev->subled_info[1].brightness;
blue = mc_cdev->subled_info[2].brightness;
dualsense_set_lightbar(ds, red, green, blue);
return 0;
}
static enum led_brightness dualsense_player_led_get_brightness(struct led_classdev *led)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct dualsense *ds = hid_get_drvdata(hdev);
return !!(ds->player_leds_state & BIT(led - ds->player_leds));
}
static int dualsense_player_led_set_brightness(struct led_classdev *led, enum led_brightness value)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct dualsense *ds = hid_get_drvdata(hdev);
unsigned long flags;
unsigned int led_index;
spin_lock_irqsave(&ds->base.lock, flags);
led_index = led - ds->player_leds;
if (value == LED_OFF)
ds->player_leds_state &= ~BIT(led_index);
else
ds->player_leds_state |= BIT(led_index);
ds->update_player_leds = true;
spin_unlock_irqrestore(&ds->base.lock, flags);
dualsense_schedule_work(ds);
return 0;
}
static void dualsense_init_output_report(struct dualsense *ds, struct dualsense_output_report *rp,
void *buf)
{
struct hid_device *hdev = ds->base.hdev;
if (hdev->bus == BUS_BLUETOOTH) {
struct dualsense_output_report_bt *bt = buf;
memset(bt, 0, sizeof(*bt));
bt->report_id = DS_OUTPUT_REPORT_BT;
bt->tag = DS_OUTPUT_TAG; /* Tag must be set. Exact meaning is unclear. */
/*
* Highest 4-bit is a sequence number, which needs to be increased
* every report. Lowest 4-bit is tag and can be zero for now.
*/
bt->seq_tag = (ds->output_seq << 4) | 0x0;
if (++ds->output_seq == 16)
ds->output_seq = 0;
rp->data = buf;
rp->len = sizeof(*bt);
rp->bt = bt;
rp->usb = NULL;
rp->common = &bt->common;
} else { /* USB */
struct dualsense_output_report_usb *usb = buf;
memset(usb, 0, sizeof(*usb));
usb->report_id = DS_OUTPUT_REPORT_USB;
rp->data = buf;
rp->len = sizeof(*usb);
rp->bt = NULL;
rp->usb = usb;
rp->common = &usb->common;
}
}
static inline void dualsense_schedule_work(struct dualsense *ds)
{
unsigned long flags;
spin_lock_irqsave(&ds->base.lock, flags);
if (ds->output_worker_initialized)
schedule_work(&ds->output_worker);
spin_unlock_irqrestore(&ds->base.lock, flags);
}
/*
* Helper function to send DualSense output reports. Applies a CRC at the end of a report
* for Bluetooth reports.
*/
static void dualsense_send_output_report(struct dualsense *ds,
struct dualsense_output_report *report)
{
struct hid_device *hdev = ds->base.hdev;
/* Bluetooth packets need to be signed with a CRC in the last 4 bytes. */
if (report->bt) {
uint32_t crc;
uint8_t seed = PS_OUTPUT_CRC32_SEED;
crc = crc32_le(0xFFFFFFFF, &seed, 1);
crc = ~crc32_le(crc, report->data, report->len - 4);
report->bt->crc32 = cpu_to_le32(crc);
}
hid_hw_output_report(hdev, report->data, report->len);
}
static void dualsense_output_worker(struct work_struct *work)
{
struct dualsense *ds = container_of(work, struct dualsense, output_worker);
struct dualsense_output_report report;
struct dualsense_output_report_common *common;
unsigned long flags;
dualsense_init_output_report(ds, &report, ds->output_report_dmabuf);
common = report.common;
spin_lock_irqsave(&ds->base.lock, flags);
if (ds->update_rumble) {
/* Select classic rumble style haptics and enable it. */
common->valid_flag0 |= DS_OUTPUT_VALID_FLAG0_HAPTICS_SELECT;
if (ds->use_vibration_v2)
common->valid_flag2 |= DS_OUTPUT_VALID_FLAG2_COMPATIBLE_VIBRATION2;
else
common->valid_flag0 |= DS_OUTPUT_VALID_FLAG0_COMPATIBLE_VIBRATION;
common->motor_left = ds->motor_left;
common->motor_right = ds->motor_right;
ds->update_rumble = false;
}
if (ds->update_lightbar) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_LIGHTBAR_CONTROL_ENABLE;
common->lightbar_red = ds->lightbar_red;
common->lightbar_green = ds->lightbar_green;
common->lightbar_blue = ds->lightbar_blue;
ds->update_lightbar = false;
}
if (ds->update_player_leds) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_PLAYER_INDICATOR_CONTROL_ENABLE;
common->player_leds = ds->player_leds_state;
ds->update_player_leds = false;
}
if (ds->update_mic_mute) {
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_MIC_MUTE_LED_CONTROL_ENABLE;
common->mute_button_led = ds->mic_muted;
if (ds->mic_muted) {
/* Disable microphone */
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE;
common->power_save_control |= DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE;
} else {
/* Enable microphone */
common->valid_flag1 |= DS_OUTPUT_VALID_FLAG1_POWER_SAVE_CONTROL_ENABLE;
common->power_save_control &= ~DS_OUTPUT_POWER_SAVE_CONTROL_MIC_MUTE;
}
ds->update_mic_mute = false;
}
spin_unlock_irqrestore(&ds->base.lock, flags);
dualsense_send_output_report(ds, &report);
}
static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *report,
u8 *data, int size)
{
struct hid_device *hdev = ps_dev->hdev;
struct dualsense *ds = container_of(ps_dev, struct dualsense, base);
struct dualsense_input_report *ds_report;
uint8_t battery_data, battery_capacity, charging_status, value;
int battery_status;
uint32_t sensor_timestamp;
bool btn_mic_state;
unsigned long flags;
int i;
/*
* DualSense in USB uses the full HID report for reportID 1, but
* Bluetooth uses a minimal HID report for reportID 1 and reports
* the full report using reportID 49.
*/
if (hdev->bus == BUS_USB && report->id == DS_INPUT_REPORT_USB &&
size == DS_INPUT_REPORT_USB_SIZE) {
ds_report = (struct dualsense_input_report *)&data[1];
} else if (hdev->bus == BUS_BLUETOOTH && report->id == DS_INPUT_REPORT_BT &&
size == DS_INPUT_REPORT_BT_SIZE) {
/* Last 4 bytes of input report contain crc32 */
uint32_t report_crc = get_unaligned_le32(&data[size - 4]);
if (!ps_check_crc32(PS_INPUT_CRC32_SEED, data, size - 4, report_crc)) {
hid_err(hdev, "DualSense input CRC's check failed\n");
return -EILSEQ;
}
ds_report = (struct dualsense_input_report *)&data[2];
} else {
hid_err(hdev, "Unhandled reportID=%d\n", report->id);
return -1;
}
input_report_abs(ds->gamepad, ABS_X, ds_report->x);
input_report_abs(ds->gamepad, ABS_Y, ds_report->y);
input_report_abs(ds->gamepad, ABS_RX, ds_report->rx);
input_report_abs(ds->gamepad, ABS_RY, ds_report->ry);
input_report_abs(ds->gamepad, ABS_Z, ds_report->z);
input_report_abs(ds->gamepad, ABS_RZ, ds_report->rz);
value = ds_report->buttons[0] & DS_BUTTONS0_HAT_SWITCH;
if (value >= ARRAY_SIZE(ps_gamepad_hat_mapping))
value = 8; /* center */
input_report_abs(ds->gamepad, ABS_HAT0X, ps_gamepad_hat_mapping[value].x);
input_report_abs(ds->gamepad, ABS_HAT0Y, ps_gamepad_hat_mapping[value].y);
input_report_key(ds->gamepad, BTN_WEST, ds_report->buttons[0] & DS_BUTTONS0_SQUARE);
input_report_key(ds->gamepad, BTN_SOUTH, ds_report->buttons[0] & DS_BUTTONS0_CROSS);
input_report_key(ds->gamepad, BTN_EAST, ds_report->buttons[0] & DS_BUTTONS0_CIRCLE);
input_report_key(ds->gamepad, BTN_NORTH, ds_report->buttons[0] & DS_BUTTONS0_TRIANGLE);
input_report_key(ds->gamepad, BTN_TL, ds_report->buttons[1] & DS_BUTTONS1_L1);
input_report_key(ds->gamepad, BTN_TR, ds_report->buttons[1] & DS_BUTTONS1_R1);
input_report_key(ds->gamepad, BTN_TL2, ds_report->buttons[1] & DS_BUTTONS1_L2);
input_report_key(ds->gamepad, BTN_TR2, ds_report->buttons[1] & DS_BUTTONS1_R2);
input_report_key(ds->gamepad, BTN_SELECT, ds_report->buttons[1] & DS_BUTTONS1_CREATE);
input_report_key(ds->gamepad, BTN_START, ds_report->buttons[1] & DS_BUTTONS1_OPTIONS);
input_report_key(ds->gamepad, BTN_THUMBL, ds_report->buttons[1] & DS_BUTTONS1_L3);
input_report_key(ds->gamepad, BTN_THUMBR, ds_report->buttons[1] & DS_BUTTONS1_R3);
input_report_key(ds->gamepad, BTN_MODE, ds_report->buttons[2] & DS_BUTTONS2_PS_HOME);
input_sync(ds->gamepad);
/*
* The DualSense has an internal microphone, which can be muted through a mute button
* on the device. The driver is expected to read the button state and program the device
* to mute/unmute audio at the hardware level.
*/
btn_mic_state = !!(ds_report->buttons[2] & DS_BUTTONS2_MIC_MUTE);
if (btn_mic_state && !ds->last_btn_mic_state) {
spin_lock_irqsave(&ps_dev->lock, flags);
ds->update_mic_mute = true;
ds->mic_muted = !ds->mic_muted; /* toggle */
spin_unlock_irqrestore(&ps_dev->lock, flags);
/* Schedule updating of microphone state at hardware level. */
dualsense_schedule_work(ds);
}
ds->last_btn_mic_state = btn_mic_state;
/* Parse and calibrate gyroscope data. */
for (i = 0; i < ARRAY_SIZE(ds_report->gyro); i++) {
int raw_data = (short)le16_to_cpu(ds_report->gyro[i]);
int calib_data = mult_frac(ds->gyro_calib_data[i].sens_numer,
raw_data, ds->gyro_calib_data[i].sens_denom);
input_report_abs(ds->sensors, ds->gyro_calib_data[i].abs_code, calib_data);
}
/* Parse and calibrate accelerometer data. */
for (i = 0; i < ARRAY_SIZE(ds_report->accel); i++) {
int raw_data = (short)le16_to_cpu(ds_report->accel[i]);
int calib_data = mult_frac(ds->accel_calib_data[i].sens_numer,
raw_data - ds->accel_calib_data[i].bias,
ds->accel_calib_data[i].sens_denom);
input_report_abs(ds->sensors, ds->accel_calib_data[i].abs_code, calib_data);
}
/* Convert timestamp (in 0.33us unit) to timestamp_us */
sensor_timestamp = le32_to_cpu(ds_report->sensor_timestamp);
if (!ds->sensor_timestamp_initialized) {
ds->sensor_timestamp_us = DIV_ROUND_CLOSEST(sensor_timestamp, 3);
ds->sensor_timestamp_initialized = true;
} else {
uint32_t delta;
if (ds->prev_sensor_timestamp > sensor_timestamp)
delta = (U32_MAX - ds->prev_sensor_timestamp + sensor_timestamp + 1);
else
delta = sensor_timestamp - ds->prev_sensor_timestamp;
ds->sensor_timestamp_us += DIV_ROUND_CLOSEST(delta, 3);
}
ds->prev_sensor_timestamp = sensor_timestamp;
input_event(ds->sensors, EV_MSC, MSC_TIMESTAMP, ds->sensor_timestamp_us);
input_sync(ds->sensors);
for (i = 0; i < ARRAY_SIZE(ds_report->points); i++) {
struct dualsense_touch_point *point = &ds_report->points[i];
bool active = (point->contact & DS_TOUCH_POINT_INACTIVE) ? false : true;
input_mt_slot(ds->touchpad, i);
input_mt_report_slot_state(ds->touchpad, MT_TOOL_FINGER, active);
if (active) {
int x = (point->x_hi << 8) | point->x_lo;
int y = (point->y_hi << 4) | point->y_lo;
input_report_abs(ds->touchpad, ABS_MT_POSITION_X, x);
input_report_abs(ds->touchpad, ABS_MT_POSITION_Y, y);
}
}
input_mt_sync_frame(ds->touchpad);
input_report_key(ds->touchpad, BTN_LEFT, ds_report->buttons[2] & DS_BUTTONS2_TOUCHPAD);
input_sync(ds->touchpad);
battery_data = ds_report->status & DS_STATUS_BATTERY_CAPACITY;
charging_status = (ds_report->status & DS_STATUS_CHARGING) >> DS_STATUS_CHARGING_SHIFT;
switch (charging_status) {
case 0x0:
/*
* Each unit of battery data corresponds to 10%
* 0 = 0-9%, 1 = 10-19%, .. and 10 = 100%
*/
battery_capacity = min(battery_data * 10 + 5, 100);
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
break;
case 0x1:
battery_capacity = min(battery_data * 10 + 5, 100);
battery_status = POWER_SUPPLY_STATUS_CHARGING;
break;
case 0x2:
battery_capacity = 100;
battery_status = POWER_SUPPLY_STATUS_FULL;
break;
case 0xa: /* voltage or temperature out of range */
case 0xb: /* temperature error */
battery_capacity = 0;
battery_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
case 0xf: /* charging error */
default:
battery_capacity = 0;
battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
}
spin_lock_irqsave(&ps_dev->lock, flags);
ps_dev->battery_capacity = battery_capacity;
ps_dev->battery_status = battery_status;
spin_unlock_irqrestore(&ps_dev->lock, flags);
return 0;
}
static int dualsense_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hdev = input_get_drvdata(dev);
struct dualsense *ds = hid_get_drvdata(hdev);
unsigned long flags;
if (effect->type != FF_RUMBLE)
return 0;
spin_lock_irqsave(&ds->base.lock, flags);
ds->update_rumble = true;
ds->motor_left = effect->u.rumble.strong_magnitude / 256;
ds->motor_right = effect->u.rumble.weak_magnitude / 256;
spin_unlock_irqrestore(&ds->base.lock, flags);
dualsense_schedule_work(ds);
return 0;
}
static void dualsense_remove(struct ps_device *ps_dev)
{
struct dualsense *ds = container_of(ps_dev, struct dualsense, base);
unsigned long flags;
spin_lock_irqsave(&ds->base.lock, flags);
ds->output_worker_initialized = false;
spin_unlock_irqrestore(&ds->base.lock, flags);
cancel_work_sync(&ds->output_worker);
}
static int dualsense_reset_leds(struct dualsense *ds)
{
struct dualsense_output_report report;
uint8_t *buf;
buf = kzalloc(sizeof(struct dualsense_output_report_bt), GFP_KERNEL);
if (!buf)
return -ENOMEM;
dualsense_init_output_report(ds, &report, buf);
/*
* On Bluetooth the DualSense outputs an animation on the lightbar
* during startup and maintains a color afterwards. We need to explicitly
* reconfigure the lightbar before we can do any programming later on.
* In USB the lightbar is not on by default, but redoing the setup there
* doesn't hurt.
*/
report.common->valid_flag2 = DS_OUTPUT_VALID_FLAG2_LIGHTBAR_SETUP_CONTROL_ENABLE;
report.common->lightbar_setup = DS_OUTPUT_LIGHTBAR_SETUP_LIGHT_OUT; /* Fade light out. */
dualsense_send_output_report(ds, &report);
kfree(buf);
return 0;
}
static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue)
{
unsigned long flags;
spin_lock_irqsave(&ds->base.lock, flags);
ds->update_lightbar = true;
ds->lightbar_red = red;
ds->lightbar_green = green;
ds->lightbar_blue = blue;
spin_unlock_irqrestore(&ds->base.lock, flags);
dualsense_schedule_work(ds);
}
static void dualsense_set_player_leds(struct dualsense *ds)
{
/*
* The DualSense controller has a row of 5 LEDs used for player ids.
* Behavior on the PlayStation 5 console is to center the player id
* across the LEDs, so e.g. player 1 would be "--x--" with x being 'on'.
* Follow a similar mapping here.
*/
static const int player_ids[5] = {
BIT(2),
BIT(3) | BIT(1),
BIT(4) | BIT(2) | BIT(0),
BIT(4) | BIT(3) | BIT(1) | BIT(0),
BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0)
};
uint8_t player_id = ds->base.player_id % ARRAY_SIZE(player_ids);
ds->update_player_leds = true;
ds->player_leds_state = player_ids[player_id];
dualsense_schedule_work(ds);
}
static struct ps_device *dualsense_create(struct hid_device *hdev)
{
struct dualsense *ds;
struct ps_device *ps_dev;
uint8_t max_output_report_size;
int i, ret;
static const struct ps_led_info player_leds_info[] = {
{ LED_FUNCTION_PLAYER1, "white", 1, dualsense_player_led_get_brightness,
dualsense_player_led_set_brightness },
{ LED_FUNCTION_PLAYER2, "white", 1, dualsense_player_led_get_brightness,
dualsense_player_led_set_brightness },
{ LED_FUNCTION_PLAYER3, "white", 1, dualsense_player_led_get_brightness,
dualsense_player_led_set_brightness },
{ LED_FUNCTION_PLAYER4, "white", 1, dualsense_player_led_get_brightness,
dualsense_player_led_set_brightness },
{ LED_FUNCTION_PLAYER5, "white", 1, dualsense_player_led_get_brightness,
dualsense_player_led_set_brightness }
};
ds = devm_kzalloc(&hdev->dev, sizeof(*ds), GFP_KERNEL);
if (!ds)
return ERR_PTR(-ENOMEM);
/*
* Patch version to allow userspace to distinguish between
* hid-generic vs hid-playstation axis and button mapping.
*/
hdev->version |= HID_PLAYSTATION_VERSION_PATCH;
ps_dev = &ds->base;
ps_dev->hdev = hdev;
spin_lock_init(&ps_dev->lock);
ps_dev->battery_capacity = 100; /* initial value until parse_report. */
ps_dev->battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
ps_dev->parse_report = dualsense_parse_report;
ps_dev->remove = dualsense_remove;
INIT_WORK(&ds->output_worker, dualsense_output_worker);
ds->output_worker_initialized = true;
hid_set_drvdata(hdev, ds);
max_output_report_size = sizeof(struct dualsense_output_report_bt);
ds->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL);
if (!ds->output_report_dmabuf)
return ERR_PTR(-ENOMEM);
ret = dualsense_get_mac_address(ds);
if (ret) {
hid_err(hdev, "Failed to get MAC address from DualSense\n");
return ERR_PTR(ret);
}
snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds->base.mac_address);
ret = dualsense_get_firmware_info(ds);
if (ret) {
hid_err(hdev, "Failed to get firmware info from DualSense\n");
return ERR_PTR(ret);
}
/* Original DualSense firmware simulated classic controller rumble through
* its new haptics hardware. It felt different from classic rumble users
* were used to. Since then new firmwares were introduced to change behavior
* and make this new 'v2' behavior default on PlayStation and other platforms.
* The original DualSense requires a new enough firmware as bundled with PS5
* software released in 2021. DualSense edge supports it out of the box.
* Both devices also support the old mode, but it is not really used.
*/
if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER) {
/* Feature version 2.21 introduced new vibration method. */
ds->use_vibration_v2 = ds->update_version >= DS_FEATURE_VERSION(2, 21);
} else if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) {
ds->use_vibration_v2 = true;
}
ret = ps_devices_list_add(ps_dev);
if (ret)
return ERR_PTR(ret);
ret = dualsense_get_calibration_data(ds);
if (ret) {
hid_err(hdev, "Failed to get calibration data from DualSense\n");
goto err;
}
ds->gamepad = ps_gamepad_create(hdev, dualsense_play_effect);
if (IS_ERR(ds->gamepad)) {
ret = PTR_ERR(ds->gamepad);
goto err;
}
/* Use gamepad input device name as primary device name for e.g. LEDs */
ps_dev->input_dev_name = dev_name(&ds->gamepad->dev);
ds->sensors = ps_sensors_create(hdev, DS_ACC_RANGE, DS_ACC_RES_PER_G,
DS_GYRO_RANGE, DS_GYRO_RES_PER_DEG_S);
if (IS_ERR(ds->sensors)) {
ret = PTR_ERR(ds->sensors);
goto err;
}
ds->touchpad = ps_touchpad_create(hdev, DS_TOUCHPAD_WIDTH, DS_TOUCHPAD_HEIGHT, 2);
if (IS_ERR(ds->touchpad)) {
ret = PTR_ERR(ds->touchpad);
goto err;
}
ret = ps_device_register_battery(ps_dev);
if (ret)
goto err;
/*
* The hardware may have control over the LEDs (e.g. in Bluetooth on startup).
* Reset the LEDs (lightbar, mute, player leds), so we can control them
* from software.
*/
ret = dualsense_reset_leds(ds);
if (ret)
goto err;
ret = ps_lightbar_register(ps_dev, &ds->lightbar, dualsense_lightbar_set_brightness);
if (ret)
goto err;
/* Set default lightbar color. */
dualsense_set_lightbar(ds, 0, 0, 128); /* blue */
for (i = 0; i < ARRAY_SIZE(player_leds_info); i++) {
const struct ps_led_info *led_info = &player_leds_info[i];
ret = ps_led_register(ps_dev, &ds->player_leds[i], led_info);
if (ret < 0)
goto err;
}
ret = ps_device_set_player_id(ps_dev);
if (ret) {
hid_err(hdev, "Failed to assign player id for DualSense: %d\n", ret);
goto err;
}
/* Set player LEDs to our player id. */
dualsense_set_player_leds(ds);
/*
* Reporting hardware and firmware is important as there are frequent updates, which
* can change behavior.
*/
hid_info(hdev, "Registered DualSense controller hw_version=0x%08x fw_version=0x%08x\n",
ds->base.hw_version, ds->base.fw_version);
return &ds->base;
err:
ps_devices_list_remove(ps_dev);
return ERR_PTR(ret);
}
static void dualshock4_dongle_calibration_work(struct work_struct *work)
{
struct dualshock4 *ds4 = container_of(work, struct dualshock4, dongle_hotplug_worker);
unsigned long flags;
enum dualshock4_dongle_state dongle_state;
int ret;
ret = dualshock4_get_calibration_data(ds4);
if (ret < 0) {
/* This call is very unlikely to fail for the dongle. When it
* fails we are probably in a very bad state, so mark the
* dongle as disabled. We will re-enable the dongle if a new
* DS4 hotplug is detect from sony_raw_event as any issues
* are likely resolved then (the dongle is quite stupid).
*/
hid_err(ds4->base.hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
dongle_state = DONGLE_DISABLED;
} else {
hid_info(ds4->base.hdev, "DualShock 4 USB dongle: calibration completed\n");
dongle_state = DONGLE_CONNECTED;
}
spin_lock_irqsave(&ds4->base.lock, flags);
ds4->dongle_state = dongle_state;
spin_unlock_irqrestore(&ds4->base.lock, flags);
}
static int dualshock4_get_calibration_data(struct dualshock4 *ds4)
{
struct hid_device *hdev = ds4->base.hdev;
short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
short gyro_speed_plus, gyro_speed_minus;
short acc_x_plus, acc_x_minus;
short acc_y_plus, acc_y_minus;
short acc_z_plus, acc_z_minus;
int speed_2x;
int range_2g;
int ret = 0;
int i;
uint8_t *buf;
if (ds4->base.hdev->bus == BUS_USB) {
int retries;
buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/* We should normally receive the feature report data we asked
* for, but hidraw applications such as Steam can issue feature
* reports as well. In particular for Dongle reconnects, Steam
* and this function are competing resulting in often receiving
* data for a different HID report, so retry a few times.
*/
for (retries = 0; retries < 3; retries++) {
ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION, buf,
DS4_FEATURE_REPORT_CALIBRATION_SIZE, true);
if (ret) {
if (retries < 2) {
hid_warn(hdev, "Retrying DualShock 4 get calibration report (0x02) request\n");
continue;
}
hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
ret = -EILSEQ;
goto err_free;
} else {
break;
}
}
} else { /* Bluetooth */
buf = kzalloc(DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = ps_get_report(hdev, DS4_FEATURE_REPORT_CALIBRATION_BT, buf,
DS4_FEATURE_REPORT_CALIBRATION_BT_SIZE, true);
if (ret) {
hid_err(hdev, "Failed to retrieve DualShock4 calibration info: %d\n", ret);
goto err_free;
}
}
gyro_pitch_bias = get_unaligned_le16(&buf[1]);
gyro_yaw_bias = get_unaligned_le16(&buf[3]);
gyro_roll_bias = get_unaligned_le16(&buf[5]);
if (ds4->base.hdev->bus == BUS_USB) {
gyro_pitch_plus = get_unaligned_le16(&buf[7]);
gyro_pitch_minus = get_unaligned_le16(&buf[9]);
gyro_yaw_plus = get_unaligned_le16(&buf[11]);
gyro_yaw_minus = get_unaligned_le16(&buf[13]);
gyro_roll_plus = get_unaligned_le16(&buf[15]);
gyro_roll_minus = get_unaligned_le16(&buf[17]);
} else {
/* BT + Dongle */
gyro_pitch_plus = get_unaligned_le16(&buf[7]);
gyro_yaw_plus = get_unaligned_le16(&buf[9]);
gyro_roll_plus = get_unaligned_le16(&buf[11]);
gyro_pitch_minus = get_unaligned_le16(&buf[13]);
gyro_yaw_minus = get_unaligned_le16(&buf[15]);
gyro_roll_minus = get_unaligned_le16(&buf[17]);
}
gyro_speed_plus = get_unaligned_le16(&buf[19]);
gyro_speed_minus = get_unaligned_le16(&buf[21]);
acc_x_plus = get_unaligned_le16(&buf[23]);
acc_x_minus = get_unaligned_le16(&buf[25]);
acc_y_plus = get_unaligned_le16(&buf[27]);
acc_y_minus = get_unaligned_le16(&buf[29]);
acc_z_plus = get_unaligned_le16(&buf[31]);
acc_z_minus = get_unaligned_le16(&buf[33]);
/*
* Set gyroscope calibration and normalization parameters.
* Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
*/
speed_2x = (gyro_speed_plus + gyro_speed_minus);
ds4->gyro_calib_data[0].abs_code = ABS_RX;
ds4->gyro_calib_data[0].bias = 0;
ds4->gyro_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
ds4->gyro_calib_data[0].sens_denom = abs(gyro_pitch_plus - gyro_pitch_bias) +
abs(gyro_pitch_minus - gyro_pitch_bias);
ds4->gyro_calib_data[1].abs_code = ABS_RY;
ds4->gyro_calib_data[1].bias = 0;
ds4->gyro_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
ds4->gyro_calib_data[1].sens_denom = abs(gyro_yaw_plus - gyro_yaw_bias) +
abs(gyro_yaw_minus - gyro_yaw_bias);
ds4->gyro_calib_data[2].abs_code = ABS_RZ;
ds4->gyro_calib_data[2].bias = 0;
ds4->gyro_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
ds4->gyro_calib_data[2].sens_denom = abs(gyro_roll_plus - gyro_roll_bias) +
abs(gyro_roll_minus - gyro_roll_bias);
/*
* Sanity check gyro calibration data. This is needed to prevent crashes
* during report handling of virtual, clone or broken devices not implementing
* calibration data properly.
*/
for (i = 0; i < ARRAY_SIZE(ds4->gyro_calib_data); i++) {
if (ds4->gyro_calib_data[i].sens_denom == 0) {
hid_warn(hdev, "Invalid gyro calibration data for axis (%d), disabling calibration.",
ds4->gyro_calib_data[i].abs_code);
ds4->gyro_calib_data[i].bias = 0;
ds4->gyro_calib_data[i].sens_numer = DS4_GYRO_RANGE;
ds4->gyro_calib_data[i].sens_denom = S16_MAX;
}
}
/*
* Set accelerometer calibration and normalization parameters.
* Data values will be normalized to 1/DS4_ACC_RES_PER_G g.
*/
range_2g = acc_x_plus - acc_x_minus;
ds4->accel_calib_data[0].abs_code = ABS_X;
ds4->accel_calib_data[0].bias = acc_x_plus - range_2g / 2;
ds4->accel_calib_data[0].sens_numer = 2*DS4_ACC_RES_PER_G;
ds4->accel_calib_data[0].sens_denom = range_2g;
range_2g = acc_y_plus - acc_y_minus;
ds4->accel_calib_data[1].abs_code = ABS_Y;
ds4->accel_calib_data[1].bias = acc_y_plus - range_2g / 2;
ds4->accel_calib_data[1].sens_numer = 2*DS4_ACC_RES_PER_G;
ds4->accel_calib_data[1].sens_denom = range_2g;
range_2g = acc_z_plus - acc_z_minus;
ds4->accel_calib_data[2].abs_code = ABS_Z;
ds4->accel_calib_data[2].bias = acc_z_plus - range_2g / 2;
ds4->accel_calib_data[2].sens_numer = 2*DS4_ACC_RES_PER_G;
ds4->accel_calib_data[2].sens_denom = range_2g;
/*
* Sanity check accelerometer calibration data. This is needed to prevent crashes
* during report handling of virtual, clone or broken devices not implementing calibration
* data properly.
*/
for (i = 0; i < ARRAY_SIZE(ds4->accel_calib_data); i++) {
if (ds4->accel_calib_data[i].sens_denom == 0) {
hid_warn(hdev, "Invalid accelerometer calibration data for axis (%d), disabling calibration.",
ds4->accel_calib_data[i].abs_code);
ds4->accel_calib_data[i].bias = 0;
ds4->accel_calib_data[i].sens_numer = DS4_ACC_RANGE;
ds4->accel_calib_data[i].sens_denom = S16_MAX;
}
}
err_free:
kfree(buf);
return ret;
}
static int dualshock4_get_firmware_info(struct dualshock4 *ds4)
{
uint8_t *buf;
int ret;
buf = kzalloc(DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/* Note USB and BT support the same feature report, but this report
* lacks CRC support, so must be disabled in ps_get_report.
*/
ret = ps_get_report(ds4->base.hdev, DS4_FEATURE_REPORT_FIRMWARE_INFO, buf,
DS4_FEATURE_REPORT_FIRMWARE_INFO_SIZE, false);
if (ret) {
hid_err(ds4->base.hdev, "Failed to retrieve DualShock4 firmware info: %d\n", ret);
goto err_free;
}
ds4->base.hw_version = get_unaligned_le16(&buf[35]);
ds4->base.fw_version = get_unaligned_le16(&buf[41]);
err_free:
kfree(buf);
return ret;
}
static int dualshock4_get_mac_address(struct dualshock4 *ds4)
{
struct hid_device *hdev = ds4->base.hdev;
uint8_t *buf;
int ret = 0;
if (hdev->bus == BUS_USB) {
buf = kzalloc(DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = ps_get_report(hdev, DS4_FEATURE_REPORT_PAIRING_INFO, buf,
DS4_FEATURE_REPORT_PAIRING_INFO_SIZE, false);
if (ret) {
hid_err(hdev, "Failed to retrieve DualShock4 pairing info: %d\n", ret);
goto err_free;
}
memcpy(ds4->base.mac_address, &buf[1], sizeof(ds4->base.mac_address));
} else {
/* Rely on HIDP for Bluetooth */
if (strlen(hdev->uniq) != 17)
return -EINVAL;
ret = sscanf(hdev->uniq, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&ds4->base.mac_address[5], &ds4->base.mac_address[4],
&ds4->base.mac_address[3], &ds4->base.mac_address[2],
&ds4->base.mac_address[1], &ds4->base.mac_address[0]);
if (ret != sizeof(ds4->base.mac_address))
return -EINVAL;
return 0;
}
err_free:
kfree(buf);
return ret;
}
static enum led_brightness dualshock4_led_get_brightness(struct led_classdev *led)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct dualshock4 *ds4 = hid_get_drvdata(hdev);
unsigned int led_index;
led_index = led - ds4->lightbar_leds;
switch (led_index) {
case 0:
return ds4->lightbar_red;
case 1:
return ds4->lightbar_green;
case 2:
return ds4->lightbar_blue;
case 3:
return ds4->lightbar_enabled;
}
return -1;
}
static int dualshock4_led_set_blink(struct led_classdev *led, unsigned long *delay_on,
unsigned long *delay_off)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct dualshock4 *ds4 = hid_get_drvdata(hdev);
unsigned long flags;
spin_lock_irqsave(&ds4->base.lock, flags);
if (!*delay_on && !*delay_off) {
/* Default to 1 Hz (50 centiseconds on, 50 centiseconds off). */
ds4->lightbar_blink_on = 50;
ds4->lightbar_blink_off = 50;
} else {
/* Blink delays in centiseconds. */
ds4->lightbar_blink_on = min_t(unsigned long, *delay_on/10, DS4_LIGHTBAR_MAX_BLINK);
ds4->lightbar_blink_off = min_t(unsigned long, *delay_off/10, DS4_LIGHTBAR_MAX_BLINK);
}
ds4->update_lightbar_blink = true;
spin_unlock_irqrestore(&ds4->base.lock, flags);
dualshock4_schedule_work(ds4);
*delay_on = ds4->lightbar_blink_on;
*delay_off = ds4->lightbar_blink_off;
return 0;
}
static int dualshock4_led_set_brightness(struct led_classdev *led, enum led_brightness value)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct dualshock4 *ds4 = hid_get_drvdata(hdev);
unsigned long flags;
unsigned int led_index;
spin_lock_irqsave(&ds4->base.lock, flags);
led_index = led - ds4->lightbar_leds;
switch (led_index) {
case 0:
ds4->lightbar_red = value;
break;
case 1:
ds4->lightbar_green = value;
break;
case 2:
ds4->lightbar_blue = value;
break;
case 3:
ds4->lightbar_enabled = !!value;
}
ds4->update_lightbar = true;
spin_unlock_irqrestore(&ds4->base.lock, flags);
dualshock4_schedule_work(ds4);
return 0;
}
static void dualshock4_init_output_report(struct dualshock4 *ds4,
struct dualshock4_output_report *rp, void *buf)
{
struct hid_device *hdev = ds4->base.hdev;
if (hdev->bus == BUS_BLUETOOTH) {
struct dualshock4_output_report_bt *bt = buf;
memset(bt, 0, sizeof(*bt));
bt->report_id = DS4_OUTPUT_REPORT_BT;
rp->data = buf;
rp->len = sizeof(*bt);
rp->bt = bt;
rp->usb = NULL;
rp->common = &bt->common;
} else { /* USB */
struct dualshock4_output_report_usb *usb = buf;
memset(usb, 0, sizeof(*usb));
usb->report_id = DS4_OUTPUT_REPORT_USB;
rp->data = buf;
rp->len = sizeof(*usb);
rp->bt = NULL;
rp->usb = usb;
rp->common = &usb->common;
}
}
static void dualshock4_output_worker(struct work_struct *work)
{
struct dualshock4 *ds4 = container_of(work, struct dualshock4, output_worker);
struct dualshock4_output_report report;
struct dualshock4_output_report_common *common;
unsigned long flags;
dualshock4_init_output_report(ds4, &report, ds4->output_report_dmabuf);
common = report.common;
spin_lock_irqsave(&ds4->base.lock, flags);
if (ds4->update_rumble) {
/* Select classic rumble style haptics and enable it. */
common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_MOTOR;
common->motor_left = ds4->motor_left;
common->motor_right = ds4->motor_right;
ds4->update_rumble = false;
}
if (ds4->update_lightbar) {
common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_LED;
/* Comptabile behavior with hid-sony, which used a dummy global LED to
* allow enabling/disabling the lightbar. The global LED maps to
* lightbar_enabled.
*/
common->lightbar_red = ds4->lightbar_enabled ? ds4->lightbar_red : 0;
common->lightbar_green = ds4->lightbar_enabled ? ds4->lightbar_green : 0;
common->lightbar_blue = ds4->lightbar_enabled ? ds4->lightbar_blue : 0;
ds4->update_lightbar = false;
}
if (ds4->update_lightbar_blink) {
common->valid_flag0 |= DS4_OUTPUT_VALID_FLAG0_LED_BLINK;
common->lightbar_blink_on = ds4->lightbar_blink_on;
common->lightbar_blink_off = ds4->lightbar_blink_off;
ds4->update_lightbar_blink = false;
}
spin_unlock_irqrestore(&ds4->base.lock, flags);
/* Bluetooth packets need additional flags as well as a CRC in the last 4 bytes. */
if (report.bt) {
uint32_t crc;
uint8_t seed = PS_OUTPUT_CRC32_SEED;
/* Hardware control flags need to set to let the device know
* there is HID data as well as CRC.
*/
report.bt->hw_control = DS4_OUTPUT_HWCTL_HID | DS4_OUTPUT_HWCTL_CRC32;
if (ds4->update_bt_poll_interval) {
report.bt->hw_control |= ds4->bt_poll_interval;
ds4->update_bt_poll_interval = false;
}
crc = crc32_le(0xFFFFFFFF, &seed, 1);
crc = ~crc32_le(crc, report.data, report.len - 4);
report.bt->crc32 = cpu_to_le32(crc);
}
hid_hw_output_report(ds4->base.hdev, report.data, report.len);
}
static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report *report,
u8 *data, int size)
{
struct hid_device *hdev = ps_dev->hdev;
struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base);
struct dualshock4_input_report_common *ds4_report;
struct dualshock4_touch_report *touch_reports;
uint8_t battery_capacity, num_touch_reports, value;
int battery_status, i, j;
uint16_t sensor_timestamp;
unsigned long flags;
/*
* DualShock4 in USB uses the full HID report for reportID 1, but
* Bluetooth uses a minimal HID report for reportID 1 and reports
* the full report using reportID 17.
*/
if (hdev->bus == BUS_USB && report->id == DS4_INPUT_REPORT_USB &&
size == DS4_INPUT_REPORT_USB_SIZE) {
struct dualshock4_input_report_usb *usb = (struct dualshock4_input_report_usb *)data;
ds4_report = &usb->common;
num_touch_reports = usb->num_touch_reports;
touch_reports = usb->touch_reports;
} else if (hdev->bus == BUS_BLUETOOTH && report->id == DS4_INPUT_REPORT_BT &&
size == DS4_INPUT_REPORT_BT_SIZE) {
struct dualshock4_input_report_bt *bt = (struct dualshock4_input_report_bt *)data;
uint32_t report_crc = get_unaligned_le32(&bt->crc32);
/* Last 4 bytes of input report contains CRC. */
if (!ps_check_crc32(PS_INPUT_CRC32_SEED, data, size - 4, report_crc)) {
hid_err(hdev, "DualShock4 input CRC's check failed\n");
return -EILSEQ;
}
ds4_report = &bt->common;
num_touch_reports = bt->num_touch_reports;
touch_reports = bt->touch_reports;
} else {
hid_err(hdev, "Unhandled reportID=%d\n", report->id);
return -1;
}
input_report_abs(ds4->gamepad, ABS_X, ds4_report->x);
input_report_abs(ds4->gamepad, ABS_Y, ds4_report->y);
input_report_abs(ds4->gamepad, ABS_RX, ds4_report->rx);
input_report_abs(ds4->gamepad, ABS_RY, ds4_report->ry);
input_report_abs(ds4->gamepad, ABS_Z, ds4_report->z);
input_report_abs(ds4->gamepad, ABS_RZ, ds4_report->rz);
value = ds4_report->buttons[0] & DS_BUTTONS0_HAT_SWITCH;
if (value >= ARRAY_SIZE(ps_gamepad_hat_mapping))
value = 8; /* center */
input_report_abs(ds4->gamepad, ABS_HAT0X, ps_gamepad_hat_mapping[value].x);
input_report_abs(ds4->gamepad, ABS_HAT0Y, ps_gamepad_hat_mapping[value].y);
input_report_key(ds4->gamepad, BTN_WEST, ds4_report->buttons[0] & DS_BUTTONS0_SQUARE);
input_report_key(ds4->gamepad, BTN_SOUTH, ds4_report->buttons[0] & DS_BUTTONS0_CROSS);
input_report_key(ds4->gamepad, BTN_EAST, ds4_report->buttons[0] & DS_BUTTONS0_CIRCLE);
input_report_key(ds4->gamepad, BTN_NORTH, ds4_report->buttons[0] & DS_BUTTONS0_TRIANGLE);
input_report_key(ds4->gamepad, BTN_TL, ds4_report->buttons[1] & DS_BUTTONS1_L1);
input_report_key(ds4->gamepad, BTN_TR, ds4_report->buttons[1] & DS_BUTTONS1_R1);
input_report_key(ds4->gamepad, BTN_TL2, ds4_report->buttons[1] & DS_BUTTONS1_L2);
input_report_key(ds4->gamepad, BTN_TR2, ds4_report->buttons[1] & DS_BUTTONS1_R2);
input_report_key(ds4->gamepad, BTN_SELECT, ds4_report->buttons[1] & DS_BUTTONS1_CREATE);
input_report_key(ds4->gamepad, BTN_START, ds4_report->buttons[1] & DS_BUTTONS1_OPTIONS);
input_report_key(ds4->gamepad, BTN_THUMBL, ds4_report->buttons[1] & DS_BUTTONS1_L3);
input_report_key(ds4->gamepad, BTN_THUMBR, ds4_report->buttons[1] & DS_BUTTONS1_R3);
input_report_key(ds4->gamepad, BTN_MODE, ds4_report->buttons[2] & DS_BUTTONS2_PS_HOME);
input_sync(ds4->gamepad);
/* Parse and calibrate gyroscope data. */
for (i = 0; i < ARRAY_SIZE(ds4_report->gyro); i++) {
int raw_data = (short)le16_to_cpu(ds4_report->gyro[i]);
int calib_data = mult_frac(ds4->gyro_calib_data[i].sens_numer,
raw_data, ds4->gyro_calib_data[i].sens_denom);
input_report_abs(ds4->sensors, ds4->gyro_calib_data[i].abs_code, calib_data);
}
/* Parse and calibrate accelerometer data. */
for (i = 0; i < ARRAY_SIZE(ds4_report->accel); i++) {
int raw_data = (short)le16_to_cpu(ds4_report->accel[i]);
int calib_data = mult_frac(ds4->accel_calib_data[i].sens_numer,
raw_data - ds4->accel_calib_data[i].bias,
ds4->accel_calib_data[i].sens_denom);
input_report_abs(ds4->sensors, ds4->accel_calib_data[i].abs_code, calib_data);
}
/* Convert timestamp (in 5.33us unit) to timestamp_us */
sensor_timestamp = le16_to_cpu(ds4_report->sensor_timestamp);
if (!ds4->sensor_timestamp_initialized) {
ds4->sensor_timestamp_us = DIV_ROUND_CLOSEST(sensor_timestamp*16, 3);
ds4->sensor_timestamp_initialized = true;
} else {
uint16_t delta;
if (ds4->prev_sensor_timestamp > sensor_timestamp)
delta = (U16_MAX - ds4->prev_sensor_timestamp + sensor_timestamp + 1);
else
delta = sensor_timestamp - ds4->prev_sensor_timestamp;
ds4->sensor_timestamp_us += DIV_ROUND_CLOSEST(delta*16, 3);
}
ds4->prev_sensor_timestamp = sensor_timestamp;
input_event(ds4->sensors, EV_MSC, MSC_TIMESTAMP, ds4->sensor_timestamp_us);
input_sync(ds4->sensors);
for (i = 0; i < num_touch_reports; i++) {
struct dualshock4_touch_report *touch_report = &touch_reports[i];
for (j = 0; j < ARRAY_SIZE(touch_report->points); j++) {
struct dualshock4_touch_point *point = &touch_report->points[j];
bool active = (point->contact & DS4_TOUCH_POINT_INACTIVE) ? false : true;
input_mt_slot(ds4->touchpad, j);
input_mt_report_slot_state(ds4->touchpad, MT_TOOL_FINGER, active);
if (active) {
int x = (point->x_hi << 8) | point->x_lo;
int y = (point->y_hi << 4) | point->y_lo;
input_report_abs(ds4->touchpad, ABS_MT_POSITION_X, x);
input_report_abs(ds4->touchpad, ABS_MT_POSITION_Y, y);
}
}
input_mt_sync_frame(ds4->touchpad);
input_sync(ds4->touchpad);
}
input_report_key(ds4->touchpad, BTN_LEFT, ds4_report->buttons[2] & DS_BUTTONS2_TOUCHPAD);
/*
* Interpretation of the battery_capacity data depends on the cable state.
* When no cable is connected (bit4 is 0):
* - 0:10: percentage in units of 10%.
* When a cable is plugged in:
* - 0-10: percentage in units of 10%.
* - 11: battery is full
* - 14: not charging due to Voltage or temperature error
* - 15: charge error
*/
if (ds4_report->status[0] & DS4_STATUS0_CABLE_STATE) {
uint8_t battery_data = ds4_report->status[0] & DS4_STATUS0_BATTERY_CAPACITY;
if (battery_data < 10) {
/* Take the mid-point for each battery capacity value,
* because on the hardware side 0 = 0-9%, 1=10-19%, etc.
* This matches official platform behavior, which does
* the same.
*/
battery_capacity = battery_data * 10 + 5;
battery_status = POWER_SUPPLY_STATUS_CHARGING;
} else if (battery_data == 10) {
battery_capacity = 100;
battery_status = POWER_SUPPLY_STATUS_CHARGING;
} else if (battery_data == DS4_BATTERY_STATUS_FULL) {
battery_capacity = 100;
battery_status = POWER_SUPPLY_STATUS_FULL;
} else { /* 14, 15 and undefined values */
battery_capacity = 0;
battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
}
} else {
uint8_t battery_data = ds4_report->status[0] & DS4_STATUS0_BATTERY_CAPACITY;
if (battery_data < 10)
battery_capacity = battery_data * 10 + 5;
else /* 10 */
battery_capacity = 100;
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
}
spin_lock_irqsave(&ps_dev->lock, flags);
ps_dev->battery_capacity = battery_capacity;
ps_dev->battery_status = battery_status;
spin_unlock_irqrestore(&ps_dev->lock, flags);
return 0;
}
static int dualshock4_dongle_parse_report(struct ps_device *ps_dev, struct hid_report *report,
u8 *data, int size)
{
struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base);
bool connected = false;
/* The dongle reports data using the main USB report (0x1) no matter whether a controller
* is connected with mostly zeros. The report does contain dongle status, which we use to
* determine if a controller is connected and if so we forward to the regular DualShock4
* parsing code.
*/
if (data[0] == DS4_INPUT_REPORT_USB && size == DS4_INPUT_REPORT_USB_SIZE) {
struct dualshock4_input_report_common *ds4_report = (struct dualshock4_input_report_common *)&data[1];
unsigned long flags;
connected = ds4_report->status[1] & DS4_STATUS1_DONGLE_STATE ? false : true;
if (ds4->dongle_state == DONGLE_DISCONNECTED && connected) {
hid_info(ps_dev->hdev, "DualShock 4 USB dongle: controller connected\n");
dualshock4_set_default_lightbar_colors(ds4);
spin_lock_irqsave(&ps_dev->lock, flags);
ds4->dongle_state = DONGLE_CALIBRATING;
spin_unlock_irqrestore(&ps_dev->lock, flags);
schedule_work(&ds4->dongle_hotplug_worker);
/* Don't process the report since we don't have
* calibration data, but let hidraw have it anyway.
*/
return 0;
} else if ((ds4->dongle_state == DONGLE_CONNECTED ||
ds4->dongle_state == DONGLE_DISABLED) && !connected) {
hid_info(ps_dev->hdev, "DualShock 4 USB dongle: controller disconnected\n");
spin_lock_irqsave(&ps_dev->lock, flags);
ds4->dongle_state = DONGLE_DISCONNECTED;
spin_unlock_irqrestore(&ps_dev->lock, flags);
/* Return 0, so hidraw can get the report. */
return 0;
} else if (ds4->dongle_state == DONGLE_CALIBRATING ||
ds4->dongle_state == DONGLE_DISABLED ||
ds4->dongle_state == DONGLE_DISCONNECTED) {
/* Return 0, so hidraw can get the report. */
return 0;
}
}
if (connected)
return dualshock4_parse_report(ps_dev, report, data, size);
return 0;
}
static int dualshock4_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hdev = input_get_drvdata(dev);
struct dualshock4 *ds4 = hid_get_drvdata(hdev);
unsigned long flags;
if (effect->type != FF_RUMBLE)
return 0;
spin_lock_irqsave(&ds4->base.lock, flags);
ds4->update_rumble = true;
ds4->motor_left = effect->u.rumble.strong_magnitude / 256;
ds4->motor_right = effect->u.rumble.weak_magnitude / 256;
spin_unlock_irqrestore(&ds4->base.lock, flags);
dualshock4_schedule_work(ds4);
return 0;
}
static void dualshock4_remove(struct ps_device *ps_dev)
{
struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base);
unsigned long flags;
spin_lock_irqsave(&ds4->base.lock, flags);
ds4->output_worker_initialized = false;
spin_unlock_irqrestore(&ds4->base.lock, flags);
cancel_work_sync(&ds4->output_worker);
if (ps_dev->hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE)
cancel_work_sync(&ds4->dongle_hotplug_worker);
}
static inline void dualshock4_schedule_work(struct dualshock4 *ds4)
{
unsigned long flags;
spin_lock_irqsave(&ds4->base.lock, flags);
if (ds4->output_worker_initialized)
schedule_work(&ds4->output_worker);
spin_unlock_irqrestore(&ds4->base.lock, flags);
}
static void dualshock4_set_bt_poll_interval(struct dualshock4 *ds4, uint8_t interval)
{
ds4->bt_poll_interval = interval;
ds4->update_bt_poll_interval = true;
dualshock4_schedule_work(ds4);
}
/* Set default lightbar color based on player. */
static void dualshock4_set_default_lightbar_colors(struct dualshock4 *ds4)
{
/* Use same player colors as PlayStation 4.
* Array of colors is in RGB.
*/
static const int player_colors[4][3] = {
{ 0x00, 0x00, 0x40 }, /* Blue */
{ 0x40, 0x00, 0x00 }, /* Red */
{ 0x00, 0x40, 0x00 }, /* Green */
{ 0x20, 0x00, 0x20 } /* Pink */
};
uint8_t player_id = ds4->base.player_id % ARRAY_SIZE(player_colors);
ds4->lightbar_enabled = true;
ds4->lightbar_red = player_colors[player_id][0];
ds4->lightbar_green = player_colors[player_id][1];
ds4->lightbar_blue = player_colors[player_id][2];
ds4->update_lightbar = true;
dualshock4_schedule_work(ds4);
}
static struct ps_device *dualshock4_create(struct hid_device *hdev)
{
struct dualshock4 *ds4;
struct ps_device *ps_dev;
uint8_t max_output_report_size;
int i, ret;
/* The DualShock4 has an RGB lightbar, which the original hid-sony driver
* exposed as a set of 4 LEDs for the 3 color channels and a global control.
* Ideally this should have used the multi-color LED class, which didn't exist
* yet. In addition the driver used a naming scheme not compliant with the LED
* naming spec by using "<mac_address>:<color>", which contained many colons.
* We use a more compliant by using "<device_name>:<color>" name now. Ideally
* would have been "<device_name>:<color>:indicator", but that would break
* existing applications (e.g. Android). Nothing matches against MAC address.
*/
static const struct ps_led_info lightbar_leds_info[] = {
{ NULL, "red", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness },
{ NULL, "green", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness },
{ NULL, "blue", 255, dualshock4_led_get_brightness, dualshock4_led_set_brightness },
{ NULL, "global", 1, dualshock4_led_get_brightness, dualshock4_led_set_brightness,
dualshock4_led_set_blink },
};
ds4 = devm_kzalloc(&hdev->dev, sizeof(*ds4), GFP_KERNEL);
if (!ds4)
return ERR_PTR(-ENOMEM);
/*
* Patch version to allow userspace to distinguish between
* hid-generic vs hid-playstation axis and button mapping.
*/
hdev->version |= HID_PLAYSTATION_VERSION_PATCH;
ps_dev = &ds4->base;
ps_dev->hdev = hdev;
spin_lock_init(&ps_dev->lock);
ps_dev->battery_capacity = 100; /* initial value until parse_report. */
ps_dev->battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
ps_dev->parse_report = dualshock4_parse_report;
ps_dev->remove = dualshock4_remove;
INIT_WORK(&ds4->output_worker, dualshock4_output_worker);
ds4->output_worker_initialized = true;
hid_set_drvdata(hdev, ds4);
max_output_report_size = sizeof(struct dualshock4_output_report_bt);
ds4->output_report_dmabuf = devm_kzalloc(&hdev->dev, max_output_report_size, GFP_KERNEL);
if (!ds4->output_report_dmabuf)
return ERR_PTR(-ENOMEM);
if (hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) {
ds4->dongle_state = DONGLE_DISCONNECTED;
INIT_WORK(&ds4->dongle_hotplug_worker, dualshock4_dongle_calibration_work);
/* Override parse report for dongle specific hotplug handling. */
ps_dev->parse_report = dualshock4_dongle_parse_report;
}
ret = dualshock4_get_mac_address(ds4);
if (ret) {
hid_err(hdev, "Failed to get MAC address from DualShock4\n");
return ERR_PTR(ret);
}
snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds4->base.mac_address);
ret = dualshock4_get_firmware_info(ds4);
if (ret) {
hid_err(hdev, "Failed to get firmware info from DualShock4\n");
return ERR_PTR(ret);
}
ret = ps_devices_list_add(ps_dev);
if (ret)
return ERR_PTR(ret);
ret = dualshock4_get_calibration_data(ds4);
if (ret) {
hid_err(hdev, "Failed to get calibration data from DualShock4\n");
goto err;
}
ds4->gamepad = ps_gamepad_create(hdev, dualshock4_play_effect);
if (IS_ERR(ds4->gamepad)) {
ret = PTR_ERR(ds4->gamepad);
goto err;
}
/* Use gamepad input device name as primary device name for e.g. LEDs */
ps_dev->input_dev_name = dev_name(&ds4->gamepad->dev);
ds4->sensors = ps_sensors_create(hdev, DS4_ACC_RANGE, DS4_ACC_RES_PER_G,
DS4_GYRO_RANGE, DS4_GYRO_RES_PER_DEG_S);
if (IS_ERR(ds4->sensors)) {
ret = PTR_ERR(ds4->sensors);
goto err;
}
ds4->touchpad = ps_touchpad_create(hdev, DS4_TOUCHPAD_WIDTH, DS4_TOUCHPAD_HEIGHT, 2);
if (IS_ERR(ds4->touchpad)) {
ret = PTR_ERR(ds4->touchpad);
goto err;
}
ret = ps_device_register_battery(ps_dev);
if (ret)
goto err;
for (i = 0; i < ARRAY_SIZE(lightbar_leds_info); i++) {
const struct ps_led_info *led_info = &lightbar_leds_info[i];
ret = ps_led_register(ps_dev, &ds4->lightbar_leds[i], led_info);
if (ret < 0)
goto err;
}
dualshock4_set_bt_poll_interval(ds4, DS4_BT_DEFAULT_POLL_INTERVAL_MS);
ret = ps_device_set_player_id(ps_dev);
if (ret) {
hid_err(hdev, "Failed to assign player id for DualShock4: %d\n", ret);
goto err;
}
dualshock4_set_default_lightbar_colors(ds4);
/*
* Reporting hardware and firmware is important as there are frequent updates, which
* can change behavior.
*/
hid_info(hdev, "Registered DualShock4 controller hw_version=0x%08x fw_version=0x%08x\n",
ds4->base.hw_version, ds4->base.fw_version);
return &ds4->base;
err:
ps_devices_list_remove(ps_dev);
return ERR_PTR(ret);
}
static int ps_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct ps_device *dev = hid_get_drvdata(hdev);
if (dev && dev->parse_report)
return dev->parse_report(dev, report, data, size);
return 0;
}
static int ps_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct ps_device *dev;
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "Failed to start HID device\n");
return ret;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "Failed to open HID device\n");
goto err_stop;
}
if (hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER ||
hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_2 ||
hdev->product == USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) {
dev = dualshock4_create(hdev);
if (IS_ERR(dev)) {
hid_err(hdev, "Failed to create dualshock4.\n");
ret = PTR_ERR(dev);
goto err_close;
}
} else if (hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER ||
hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) {
dev = dualsense_create(hdev);
if (IS_ERR(dev)) {
hid_err(hdev, "Failed to create dualsense.\n");
ret = PTR_ERR(dev);
goto err_close;
}
}
return ret;
err_close:
hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
return ret;
}
static void ps_remove(struct hid_device *hdev)
{
struct ps_device *dev = hid_get_drvdata(hdev);
ps_devices_list_remove(dev);
ps_device_release_player_id(dev);
if (dev->remove)
dev->remove(dev);
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id ps_devices[] = {
/* Sony DualShock 4 controllers for PS4 */
{ 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) },
{ 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_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE) },
/* Sony DualSense controllers for PS5 */
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER_2) },
{ }
};
MODULE_DEVICE_TABLE(hid, ps_devices);
static struct hid_driver ps_driver = {
.name = "playstation",
.id_table = ps_devices,
.probe = ps_probe,
.remove = ps_remove,
.raw_event = ps_raw_event,
.driver = {
.dev_groups = ps_device_groups,
},
};
static int __init ps_init(void)
{
return hid_register_driver(&ps_driver);
}
static void __exit ps_exit(void)
{
hid_unregister_driver(&ps_driver);
ida_destroy(&ps_player_id_allocator);
}
module_init(ps_init);
module_exit(ps_exit);
MODULE_AUTHOR("Sony Interactive Entertainment");
MODULE_DESCRIPTION("HID Driver for PlayStation peripherals.");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-playstation.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Saitek devices.
*
* PS1000 (USB gamepad):
* Fixes the HID report descriptor by removing a non-existent axis and
* clearing the constant bit on the input reports for buttons and d-pad.
* (This module is based on "hid-ortek".)
* Copyright (c) 2012 Andreas Hübner
*
* R.A.T.7, R.A.T.9, M.M.O.7 (USB gaming mice):
* Fixes the mode button which cycles through three constantly pressed
* buttons. All three press events are mapped to one button and the
* missing release event is generated immediately.
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include "hid-ids.h"
#define SAITEK_FIX_PS1000 0x0001
#define SAITEK_RELEASE_MODE_RAT7 0x0002
#define SAITEK_RELEASE_MODE_MMO7 0x0004
struct saitek_sc {
unsigned long quirks;
int mode;
};
static int saitek_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct saitek_sc *ssc;
int ret;
ssc = devm_kzalloc(&hdev->dev, sizeof(*ssc), GFP_KERNEL);
if (ssc == NULL) {
hid_err(hdev, "can't alloc saitek descriptor\n");
return -ENOMEM;
}
ssc->quirks = quirks;
ssc->mode = -1;
hid_set_drvdata(hdev, ssc);
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 __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
if ((ssc->quirks & SAITEK_FIX_PS1000) && *rsize == 137 &&
rdesc[20] == 0x09 && rdesc[21] == 0x33 &&
rdesc[94] == 0x81 && rdesc[95] == 0x03 &&
rdesc[110] == 0x81 && rdesc[111] == 0x03) {
hid_info(hdev, "Fixing up Saitek PS1000 report descriptor\n");
/* convert spurious axis to a "noop" Logical Minimum (0) */
rdesc[20] = 0x15;
rdesc[21] = 0x00;
/* clear constant bit on buttons and d-pad */
rdesc[95] = 0x02;
rdesc[111] = 0x02;
}
return rdesc;
}
static int saitek_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
if (ssc->quirks & SAITEK_RELEASE_MODE_RAT7 && size == 7) {
/* R.A.T.7 uses bits 13, 14, 15 for the mode */
int mode = -1;
if (raw_data[1] & 0x01)
mode = 0;
else if (raw_data[1] & 0x02)
mode = 1;
else if (raw_data[1] & 0x04)
mode = 2;
/* clear mode bits */
raw_data[1] &= ~0x07;
if (mode != ssc->mode) {
hid_dbg(hdev, "entered mode %d\n", mode);
if (ssc->mode != -1) {
/* use bit 13 as the mode button */
raw_data[1] |= 0x04;
}
ssc->mode = mode;
}
} else if (ssc->quirks & SAITEK_RELEASE_MODE_MMO7 && size == 8) {
/* M.M.O.7 uses bits 8, 22, 23 for the mode */
int mode = -1;
if (raw_data[1] & 0x80)
mode = 0;
else if (raw_data[2] & 0x01)
mode = 1;
else if (raw_data[2] & 0x02)
mode = 2;
/* clear mode bits */
raw_data[1] &= ~0x80;
raw_data[2] &= ~0x03;
if (mode != ssc->mode) {
hid_dbg(hdev, "entered mode %d\n", mode);
if (ssc->mode != -1) {
/* use bit 8 as the mode button, bits 22
* and 23 do not represent buttons
* according to the HID report descriptor
*/
raw_data[1] |= 0x80;
}
ssc->mode = mode;
}
}
return 0;
}
static int saitek_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
struct input_dev *input = field->hidinput->input;
if (usage->type == EV_KEY && value &&
(((ssc->quirks & SAITEK_RELEASE_MODE_RAT7) &&
usage->code - BTN_MOUSE == 10) ||
((ssc->quirks & SAITEK_RELEASE_MODE_MMO7) &&
usage->code - BTN_MOUSE == 15))) {
input_report_key(input, usage->code, 1);
/* report missing release event */
input_report_key(input, usage->code, 0);
return 1;
}
return 0;
}
static const struct hid_device_id saitek_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000),
.driver_data = SAITEK_FIX_PS1000 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_CONTAGION),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT9),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7),
.driver_data = SAITEK_RELEASE_MODE_MMO7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_MMO7),
.driver_data = SAITEK_RELEASE_MODE_MMO7 },
{ }
};
MODULE_DEVICE_TABLE(hid, saitek_devices);
static struct hid_driver saitek_driver = {
.name = "saitek",
.id_table = saitek_devices,
.probe = saitek_probe,
.report_fixup = saitek_report_fixup,
.raw_event = saitek_raw_event,
.event = saitek_event,
};
module_hid_driver(saitek_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-saitek.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for ACRUX game controllers
*
* From what I have gathered, these devices are mass produced in China
* by several vendors. They often share the same design as the original
* Xbox 360 controller.
*
* 1a34:0802 "ACRUX USB GAMEPAD 8116"
* - tested with an EXEQ EQ-PCU-02090 game controller.
*
* Copyright (c) 2010 Sergei Kolzun <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_HID_ACRUX_FF
struct axff_device {
struct hid_report *report;
};
static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct axff_device *axff = data;
struct hid_report *report = axff->report;
int field_count = 0;
int left, right;
int i, j;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", left, right);
left = left * 0xff / 0xffff;
right = right * 0xff / 0xffff;
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->report_count; j++) {
report->field[i]->value[j] =
field_count % 2 ? right : left;
field_count++;
}
}
dbg_hid("running with 0x%02x 0x%02x", left, right);
hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT);
return 0;
}
static int axff_init(struct hid_device *hid)
{
struct axff_device *axff;
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 field_count = 0;
int i, j;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report = list_first_entry(report_list, struct hid_report, list);
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->report_count; j++) {
report->field[i]->value[j] = 0x00;
field_count++;
}
}
if (field_count < 4 && hid->product != 0xf705) {
hid_err(hid, "not enough fields in the report: %d\n",
field_count);
return -ENODEV;
}
axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL);
if (!axff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, axff, axff_play);
if (error)
goto err_free_mem;
axff->report = report;
hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun <[email protected]>\n");
return 0;
err_free_mem:
kfree(axff);
return error;
}
#else
static inline int axff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int error;
dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n");
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
return error;
}
error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (error) {
hid_err(hdev, "hw start failed\n");
return error;
}
error = axff_init(hdev);
if (error) {
/*
* Do not fail device initialization completely as device
* may still be partially operable, just warn.
*/
hid_warn(hdev,
"Failed to enable force feedback support, error: %d\n",
error);
}
/*
* We need to start polling device right away, otherwise
* it will go into a coma.
*/
error = hid_hw_open(hdev);
if (error) {
dev_err(&hdev->dev, "hw open failed\n");
hid_hw_stop(hdev);
return error;
}
return 0;
}
static void ax_remove(struct hid_device *hdev)
{
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id ax_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705), },
{ }
};
MODULE_DEVICE_TABLE(hid, ax_devices);
static struct hid_driver ax_driver = {
.name = "acrux",
.id_table = ax_devices,
.probe = ax_probe,
.remove = ax_remove,
};
module_hid_driver(ax_driver);
MODULE_AUTHOR("Sergei Kolzun");
MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-axff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for PantherLord/GreenAsia based devices
*
* The devices are distributed under various names and the same USB device ID
* can be used in both adapters and actual game controllers.
*
* 0810:0001 "Twin USB Joystick"
* - tested with PantherLord USB/PS2 2in1 Adapter
* - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT)
*
* 0e8f:0003 "GreenAsia Inc. USB Joystick "
* - tested with König Gaming gamepad
*
* 0e8f:0003 "GASIA USB Gamepad"
* - another version of the König gamepad
*
* 0f30:0111 "Saitek Color Rumble Pad"
*
* Copyright (c) 2007, 2009 Anssi Hannula <[email protected]>
*/
/*
*/
/* #define DEBUG */
#define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg)
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/hid.h>
#include "hid-ids.h"
#ifdef CONFIG_PANTHERLORD_FF
struct plff_device {
struct hid_report *report;
s32 maxval;
s32 *strong;
s32 *weak;
};
static int hid_plff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct plff_device *plff = data;
int left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
debug("called with 0x%04x 0x%04x", left, right);
left = left * plff->maxval / 0xffff;
right = right * plff->maxval / 0xffff;
*plff->strong = left;
*plff->weak = right;
debug("running with 0x%02x 0x%02x", left, right);
hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);
return 0;
}
static int plff_init(struct hid_device *hid)
{
struct plff_device *plff;
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;
s32 maxval;
s32 *strong;
s32 *weak;
/* The device contains one output report per physical device, all
containing 1 field, which contains 4 ff00.0002 usages and 4 16bit
absolute values.
The input reports also contain a field which contains
8 ff00.0001 usages and 8 boolean values. Their meaning is
currently unknown.
A version of the 0e8f:0003 exists that has all the values in
separate fields and misses the extra input field, thus resembling
Zeroplus (hid-zpff) devices.
*/
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;
}
maxval = 0x7f;
if (report->field[0]->report_count >= 4) {
report->field[0]->value[0] = 0x00;
report->field[0]->value[1] = 0x00;
strong = &report->field[0]->value[2];
weak = &report->field[0]->value[3];
debug("detected single-field device");
} else if (report->field[0]->maxusage == 1 &&
report->field[0]->usage[0].hid ==
(HID_UP_LED | 0x43) &&
report->maxfield >= 4 &&
report->field[0]->report_count >= 1 &&
report->field[1]->report_count >= 1 &&
report->field[2]->report_count >= 1 &&
report->field[3]->report_count >= 1) {
report->field[0]->value[0] = 0x00;
report->field[1]->value[0] = 0x00;
strong = &report->field[2]->value[0];
weak = &report->field[3]->value[0];
if (hid->vendor == USB_VENDOR_ID_JESS2)
maxval = 0xff;
debug("detected 4-field device");
} else {
hid_err(hid, "not enough fields or values\n");
return -ENODEV;
}
plff = kzalloc(sizeof(struct plff_device), GFP_KERNEL);
if (!plff)
return -ENOMEM;
dev = hidinput->input;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, plff, hid_plff_play);
if (error) {
kfree(plff);
return error;
}
plff->report = report;
plff->strong = strong;
plff->weak = weak;
plff->maxval = maxval;
*strong = 0x00;
*weak = 0x00;
hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT);
}
hid_info(hid, "Force feedback for PantherLord/GreenAsia devices by Anssi Hannula <[email protected]>\n");
return 0;
}
#else
static inline int plff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
if (id->driver_data)
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
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;
}
plff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id pl_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR),
.driver_data = 1 }, /* Twin USB Joystick */
{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR),
.driver_data = 1 }, /* Twin USB Joystick */
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD), },
{ }
};
MODULE_DEVICE_TABLE(hid, pl_devices);
static struct hid_driver pl_driver = {
.name = "pantherlord",
.id_table = pl_devices,
.probe = pl_probe,
};
module_hid_driver(pl_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-pl.c |
/*
* HID driver for Redragon keyboards
*
* Copyright (c) 2017 Robert Munteanu
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* 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"
/*
* The Redragon Asura keyboard sends an incorrect HID descriptor.
* At byte 100 it contains
*
* 0x81, 0x00
*
* which is Input (Data, Arr, Abs), but it should be
*
* 0x81, 0x02
*
* which is Input (Data, Var, Abs), which is consistent with the way
* key codes are generated.
*/
static __u8 *redragon_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 102 && rdesc[100] == 0x81 && rdesc[101] == 0x00) {
dev_info(&hdev->dev, "Fixing Redragon ASURA report descriptor.\n");
rdesc[101] = 0x02;
}
return rdesc;
}
static const struct hid_device_id redragon_devices[] = {
{HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_REDRAGON_ASURA)},
{}
};
MODULE_DEVICE_TABLE(hid, redragon_devices);
static struct hid_driver redragon_driver = {
.name = "redragon",
.id_table = redragon_devices,
.report_fixup = redragon_report_fixup
};
module_hid_driver(redragon_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-redragon.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Nintendo Wii / Wii U peripherals
* Copyright (c) 2011-2013 David Herrmann <[email protected]>
*/
/*
*/
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include "hid-ids.h"
#include "hid-wiimote.h"
/* output queue handling */
static int wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
size_t count)
{
__u8 *buf;
int ret;
if (!hdev->ll_driver->output_report)
return -ENODEV;
buf = kmemdup(buffer, count, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_output_report(hdev, buf, count);
kfree(buf);
return ret;
}
static void wiimote_queue_worker(struct work_struct *work)
{
struct wiimote_queue *queue = container_of(work, struct wiimote_queue,
worker);
struct wiimote_data *wdata = container_of(queue, struct wiimote_data,
queue);
unsigned long flags;
int ret;
spin_lock_irqsave(&wdata->queue.lock, flags);
while (wdata->queue.head != wdata->queue.tail) {
spin_unlock_irqrestore(&wdata->queue.lock, flags);
ret = wiimote_hid_send(wdata->hdev,
wdata->queue.outq[wdata->queue.tail].data,
wdata->queue.outq[wdata->queue.tail].size);
if (ret < 0) {
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_abort(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
spin_lock_irqsave(&wdata->queue.lock, flags);
wdata->queue.tail = (wdata->queue.tail + 1) % WIIMOTE_BUFSIZE;
}
spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
static void wiimote_queue(struct wiimote_data *wdata, const __u8 *buffer,
size_t count)
{
unsigned long flags;
__u8 newhead;
if (count > HID_MAX_BUFFER_SIZE) {
hid_warn(wdata->hdev, "Sending too large output report\n");
spin_lock_irqsave(&wdata->queue.lock, flags);
goto out_error;
}
/*
* Copy new request into our output queue and check whether the
* queue is full. If it is full, discard this request.
* If it is empty we need to start a new worker that will
* send out the buffer to the hid device.
* If the queue is not empty, then there must be a worker
* that is currently sending out our buffer and this worker
* will reschedule itself until the queue is empty.
*/
spin_lock_irqsave(&wdata->queue.lock, flags);
memcpy(wdata->queue.outq[wdata->queue.head].data, buffer, count);
wdata->queue.outq[wdata->queue.head].size = count;
newhead = (wdata->queue.head + 1) % WIIMOTE_BUFSIZE;
if (wdata->queue.head == wdata->queue.tail) {
wdata->queue.head = newhead;
schedule_work(&wdata->queue.worker);
} else if (newhead != wdata->queue.tail) {
wdata->queue.head = newhead;
} else {
hid_warn(wdata->hdev, "Output queue is full");
goto out_error;
}
goto out_unlock;
out_error:
wiimote_cmd_abort(wdata);
out_unlock:
spin_unlock_irqrestore(&wdata->queue.lock, flags);
}
/*
* This sets the rumble bit on the given output report if rumble is
* currently enabled.
* \cmd1 must point to the second byte in the output report => &cmd[1]
* This must be called on nearly every output report before passing it
* into the output queue!
*/
static inline void wiiproto_keep_rumble(struct wiimote_data *wdata, __u8 *cmd1)
{
if (wdata->state.flags & WIIPROTO_FLAG_RUMBLE)
*cmd1 |= 0x01;
}
void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble)
{
__u8 cmd[2];
rumble = !!rumble;
if (rumble == !!(wdata->state.flags & WIIPROTO_FLAG_RUMBLE))
return;
if (rumble)
wdata->state.flags |= WIIPROTO_FLAG_RUMBLE;
else
wdata->state.flags &= ~WIIPROTO_FLAG_RUMBLE;
cmd[0] = WIIPROTO_REQ_RUMBLE;
cmd[1] = 0;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
{
__u8 cmd[2];
leds &= WIIPROTO_FLAGS_LEDS;
if ((wdata->state.flags & WIIPROTO_FLAGS_LEDS) == leds)
return;
wdata->state.flags = (wdata->state.flags & ~WIIPROTO_FLAGS_LEDS) | leds;
cmd[0] = WIIPROTO_REQ_LED;
cmd[1] = 0;
if (leds & WIIPROTO_FLAG_LED1)
cmd[1] |= 0x10;
if (leds & WIIPROTO_FLAG_LED2)
cmd[1] |= 0x20;
if (leds & WIIPROTO_FLAG_LED3)
cmd[1] |= 0x40;
if (leds & WIIPROTO_FLAG_LED4)
cmd[1] |= 0x80;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
/*
* Check what peripherals of the wiimote are currently
* active and select a proper DRM that supports all of
* the requested data inputs.
*
* Not all combinations are actually supported. The following
* combinations work only with limitations:
* - IR cam in extended or full mode disables any data transmission
* of extension controllers. There is no DRM mode that supports
* extension bytes plus extended/full IR.
* - IR cam with accelerometer and extension *_EXT8 is not supported.
* However, all extensions that need *_EXT8 are devices that don't
* support IR cameras. Hence, this shouldn't happen under normal
* operation.
* - *_EXT16 is only supported in combination with buttons and
* accelerometer. No IR or similar can be active simultaneously. As
* above, all modules that require it are mutually exclusive with
* IR/etc. so this doesn't matter.
*/
static __u8 select_drm(struct wiimote_data *wdata)
{
__u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
bool ext;
ext = (wdata->state.flags & WIIPROTO_FLAG_EXT_USED) ||
(wdata->state.flags & WIIPROTO_FLAG_MP_USED);
/* some 3rd-party balance-boards are hard-coded to KEE, *sigh* */
if (wdata->state.devtype == WIIMOTE_DEV_BALANCE_BOARD) {
if (ext)
return WIIPROTO_REQ_DRM_KEE;
else
return WIIPROTO_REQ_DRM_K;
}
if (ir == WIIPROTO_FLAG_IR_BASIC) {
if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) {
/* GEN10 and ealier devices bind IR formats to DRMs.
* Hence, we cannot use DRM_KAI here as it might be
* bound to IR_EXT. Use DRM_KAIE unconditionally so we
* work with all devices and our parsers can use the
* fixed formats, too. */
return WIIPROTO_REQ_DRM_KAIE;
} else {
return WIIPROTO_REQ_DRM_KIE;
}
} else if (ir == WIIPROTO_FLAG_IR_EXT) {
return WIIPROTO_REQ_DRM_KAI;
} else if (ir == WIIPROTO_FLAG_IR_FULL) {
return WIIPROTO_REQ_DRM_SKAI1;
} else {
if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) {
if (ext)
return WIIPROTO_REQ_DRM_KAE;
else
return WIIPROTO_REQ_DRM_KA;
} else {
if (ext)
return WIIPROTO_REQ_DRM_KEE;
else
return WIIPROTO_REQ_DRM_K;
}
}
}
void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
{
__u8 cmd[3];
if (wdata->state.flags & WIIPROTO_FLAG_DRM_LOCKED)
drm = wdata->state.drm;
else if (drm == WIIPROTO_REQ_NULL)
drm = select_drm(wdata);
cmd[0] = WIIPROTO_REQ_DRM;
cmd[1] = 0;
cmd[2] = drm;
wdata->state.drm = drm;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_status(struct wiimote_data *wdata)
{
__u8 cmd[2];
cmd[0] = WIIPROTO_REQ_SREQ;
cmd[1] = 0;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel)
{
accel = !!accel;
if (accel == !!(wdata->state.flags & WIIPROTO_FLAG_ACCEL))
return;
if (accel)
wdata->state.flags |= WIIPROTO_FLAG_ACCEL;
else
wdata->state.flags &= ~WIIPROTO_FLAG_ACCEL;
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
}
void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags)
{
__u8 cmd[2];
cmd[0] = WIIPROTO_REQ_IR1;
cmd[1] = flags;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags)
{
__u8 cmd[2];
cmd[0] = WIIPROTO_REQ_IR2;
cmd[1] = flags;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
#define wiiproto_req_wreg(wdata, os, buf, sz) \
wiiproto_req_wmem((wdata), false, (os), (buf), (sz))
#define wiiproto_req_weeprom(wdata, os, buf, sz) \
wiiproto_req_wmem((wdata), true, (os), (buf), (sz))
static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom,
__u32 offset, const __u8 *buf, __u8 size)
{
__u8 cmd[22];
if (size > 16 || size == 0) {
hid_warn(wdata->hdev, "Invalid length %d wmem request\n", size);
return;
}
memset(cmd, 0, sizeof(cmd));
cmd[0] = WIIPROTO_REQ_WMEM;
cmd[2] = (offset >> 16) & 0xff;
cmd[3] = (offset >> 8) & 0xff;
cmd[4] = offset & 0xff;
cmd[5] = size;
memcpy(&cmd[6], buf, size);
if (!eeprom)
cmd[1] |= 0x04;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, __u32 offset,
__u16 size)
{
__u8 cmd[7];
if (size == 0) {
hid_warn(wdata->hdev, "Invalid length %d rmem request\n", size);
return;
}
cmd[0] = WIIPROTO_REQ_RMEM;
cmd[1] = 0;
cmd[2] = (offset >> 16) & 0xff;
cmd[3] = (offset >> 8) & 0xff;
cmd[4] = offset & 0xff;
cmd[5] = (size >> 8) & 0xff;
cmd[6] = size & 0xff;
if (!eeprom)
cmd[1] |= 0x04;
wiiproto_keep_rumble(wdata, &cmd[1]);
wiimote_queue(wdata, cmd, sizeof(cmd));
}
/* requries the cmd-mutex to be held */
int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
const __u8 *wmem, __u8 size)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&wdata->state.lock, flags);
wiimote_cmd_set(wdata, WIIPROTO_REQ_WMEM, 0);
wiiproto_req_wreg(wdata, offset, wmem, size);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
if (!ret && wdata->state.cmd_err)
ret = -EIO;
return ret;
}
/* requries the cmd-mutex to be held */
ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, __u8 *rmem,
__u8 size)
{
unsigned long flags;
ssize_t ret;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.cmd_read_size = size;
wdata->state.cmd_read_buf = rmem;
wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, offset & 0xffff);
wiiproto_req_rreg(wdata, offset, size);
spin_unlock_irqrestore(&wdata->state.lock, flags);
ret = wiimote_cmd_wait(wdata);
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.cmd_read_buf = NULL;
spin_unlock_irqrestore(&wdata->state.lock, flags);
if (!ret) {
if (wdata->state.cmd_read_size == 0)
ret = -EIO;
else
ret = wdata->state.cmd_read_size;
}
return ret;
}
/* requires the cmd-mutex to be held */
static int wiimote_cmd_init_ext(struct wiimote_data *wdata)
{
__u8 wmem;
int ret;
/* initialize extension */
wmem = 0x55;
ret = wiimote_cmd_write(wdata, 0xa400f0, &wmem, sizeof(wmem));
if (ret)
return ret;
/* disable default encryption */
wmem = 0x0;
ret = wiimote_cmd_write(wdata, 0xa400fb, &wmem, sizeof(wmem));
if (ret)
return ret;
return 0;
}
/* requires the cmd-mutex to be held */
static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata, __u8 *rmem)
{
int ret;
/* read extension ID */
ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6);
if (ret != 6)
return WIIMOTE_EXT_NONE;
hid_dbg(wdata->hdev, "extension ID: %6phC\n", rmem);
if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff &&
rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff)
return WIIMOTE_EXT_NONE;
if (rmem[4] == 0x00 && rmem[5] == 0x00)
return WIIMOTE_EXT_NUNCHUK;
if (rmem[4] == 0x01 && rmem[5] == 0x01)
return WIIMOTE_EXT_CLASSIC_CONTROLLER;
if (rmem[4] == 0x04 && rmem[5] == 0x02)
return WIIMOTE_EXT_BALANCE_BOARD;
if (rmem[4] == 0x01 && rmem[5] == 0x20)
return WIIMOTE_EXT_PRO_CONTROLLER;
if (rmem[0] == 0x01 && rmem[1] == 0x00 &&
rmem[4] == 0x01 && rmem[5] == 0x03)
return WIIMOTE_EXT_DRUMS;
if (rmem[0] == 0x00 && rmem[1] == 0x00 &&
rmem[4] == 0x01 && rmem[5] == 0x03)
return WIIMOTE_EXT_GUITAR;
if (rmem[0] == 0x03 && rmem[1] == 0x00 &&
rmem[4] == 0x01 && rmem[5] == 0x03)
return WIIMOTE_EXT_TURNTABLE;
return WIIMOTE_EXT_UNKNOWN;
}
/* requires the cmd-mutex to be held */
static int wiimote_cmd_init_mp(struct wiimote_data *wdata)
{
__u8 wmem;
int ret;
/* initialize MP */
wmem = 0x55;
ret = wiimote_cmd_write(wdata, 0xa600f0, &wmem, sizeof(wmem));
if (ret)
return ret;
/* disable default encryption */
wmem = 0x0;
ret = wiimote_cmd_write(wdata, 0xa600fb, &wmem, sizeof(wmem));
if (ret)
return ret;
return 0;
}
/* requires the cmd-mutex to be held */
static bool wiimote_cmd_map_mp(struct wiimote_data *wdata, __u8 exttype)
{
__u8 wmem;
/* map MP with correct pass-through mode */
switch (exttype) {
case WIIMOTE_EXT_CLASSIC_CONTROLLER:
case WIIMOTE_EXT_DRUMS:
case WIIMOTE_EXT_GUITAR:
wmem = 0x07;
break;
case WIIMOTE_EXT_TURNTABLE:
case WIIMOTE_EXT_NUNCHUK:
wmem = 0x05;
break;
default:
wmem = 0x04;
break;
}
return wiimote_cmd_write(wdata, 0xa600fe, &wmem, sizeof(wmem));
}
/* requires the cmd-mutex to be held */
static bool wiimote_cmd_read_mp(struct wiimote_data *wdata, __u8 *rmem)
{
int ret;
/* read motion plus ID */
ret = wiimote_cmd_read(wdata, 0xa600fa, rmem, 6);
if (ret != 6)
return false;
hid_dbg(wdata->hdev, "motion plus ID: %6phC\n", rmem);
if (rmem[5] == 0x05)
return true;
hid_info(wdata->hdev, "unknown motion plus ID: %6phC\n", rmem);
return false;
}
/* requires the cmd-mutex to be held */
static __u8 wiimote_cmd_read_mp_mapped(struct wiimote_data *wdata)
{
int ret;
__u8 rmem[6];
/* read motion plus ID */
ret = wiimote_cmd_read(wdata, 0xa400fa, rmem, 6);
if (ret != 6)
return WIIMOTE_MP_NONE;
hid_dbg(wdata->hdev, "mapped motion plus ID: %6phC\n", rmem);
if (rmem[0] == 0xff && rmem[1] == 0xff && rmem[2] == 0xff &&
rmem[3] == 0xff && rmem[4] == 0xff && rmem[5] == 0xff)
return WIIMOTE_MP_NONE;
if (rmem[4] == 0x04 && rmem[5] == 0x05)
return WIIMOTE_MP_SINGLE;
else if (rmem[4] == 0x05 && rmem[5] == 0x05)
return WIIMOTE_MP_PASSTHROUGH_NUNCHUK;
else if (rmem[4] == 0x07 && rmem[5] == 0x05)
return WIIMOTE_MP_PASSTHROUGH_CLASSIC;
return WIIMOTE_MP_UNKNOWN;
}
/* device module handling */
static const __u8 * const wiimote_devtype_mods[WIIMOTE_DEV_NUM] = {
[WIIMOTE_DEV_PENDING] = (const __u8[]){
WIIMOD_NULL,
},
[WIIMOTE_DEV_UNKNOWN] = (const __u8[]){
WIIMOD_NO_MP,
WIIMOD_NULL,
},
[WIIMOTE_DEV_GENERIC] = (const __u8[]){
WIIMOD_KEYS,
WIIMOD_RUMBLE,
WIIMOD_BATTERY,
WIIMOD_LED1,
WIIMOD_LED2,
WIIMOD_LED3,
WIIMOD_LED4,
WIIMOD_ACCEL,
WIIMOD_IR,
WIIMOD_NULL,
},
[WIIMOTE_DEV_GEN10] = (const __u8[]){
WIIMOD_KEYS,
WIIMOD_RUMBLE,
WIIMOD_BATTERY,
WIIMOD_LED1,
WIIMOD_LED2,
WIIMOD_LED3,
WIIMOD_LED4,
WIIMOD_ACCEL,
WIIMOD_IR,
WIIMOD_NULL,
},
[WIIMOTE_DEV_GEN20] = (const __u8[]){
WIIMOD_KEYS,
WIIMOD_RUMBLE,
WIIMOD_BATTERY,
WIIMOD_LED1,
WIIMOD_LED2,
WIIMOD_LED3,
WIIMOD_LED4,
WIIMOD_ACCEL,
WIIMOD_IR,
WIIMOD_BUILTIN_MP,
WIIMOD_NULL,
},
[WIIMOTE_DEV_BALANCE_BOARD] = (const __u8[]) {
WIIMOD_BATTERY,
WIIMOD_LED1,
WIIMOD_NO_MP,
WIIMOD_NULL,
},
[WIIMOTE_DEV_PRO_CONTROLLER] = (const __u8[]) {
WIIMOD_BATTERY,
WIIMOD_LED1,
WIIMOD_LED2,
WIIMOD_LED3,
WIIMOD_LED4,
WIIMOD_NO_MP,
WIIMOD_NULL,
},
};
static void wiimote_modules_load(struct wiimote_data *wdata,
unsigned int devtype)
{
bool need_input = false;
const __u8 *mods, *iter;
const struct wiimod_ops *ops;
int ret;
mods = wiimote_devtype_mods[devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
if (wiimod_table[*iter]->flags & WIIMOD_FLAG_INPUT) {
need_input = true;
break;
}
}
if (need_input) {
wdata->input = input_allocate_device();
if (!wdata->input)
return;
input_set_drvdata(wdata->input, wdata);
wdata->input->dev.parent = &wdata->hdev->dev;
wdata->input->id.bustype = wdata->hdev->bus;
wdata->input->id.vendor = wdata->hdev->vendor;
wdata->input->id.product = wdata->hdev->product;
wdata->input->id.version = wdata->hdev->version;
wdata->input->name = WIIMOTE_NAME;
}
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
if (!ops->probe)
continue;
ret = ops->probe(ops, wdata);
if (ret)
goto error;
}
if (wdata->input) {
ret = input_register_device(wdata->input);
if (ret)
goto error;
}
spin_lock_irq(&wdata->state.lock);
wdata->state.devtype = devtype;
spin_unlock_irq(&wdata->state.lock);
return;
error:
for ( ; iter-- != mods; ) {
ops = wiimod_table[*iter];
if (ops->remove)
ops->remove(ops, wdata);
}
if (wdata->input) {
input_free_device(wdata->input);
wdata->input = NULL;
}
}
static void wiimote_modules_unload(struct wiimote_data *wdata)
{
const __u8 *mods, *iter;
const struct wiimod_ops *ops;
unsigned long flags;
mods = wiimote_devtype_mods[wdata->state.devtype];
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.devtype = WIIMOTE_DEV_UNKNOWN;
spin_unlock_irqrestore(&wdata->state.lock, flags);
/* find end of list */
for (iter = mods; *iter != WIIMOD_NULL; ++iter)
/* empty */ ;
if (wdata->input) {
input_get_device(wdata->input);
input_unregister_device(wdata->input);
}
for ( ; iter-- != mods; ) {
ops = wiimod_table[*iter];
if (ops->remove)
ops->remove(ops, wdata);
}
if (wdata->input) {
input_put_device(wdata->input);
wdata->input = NULL;
}
}
/* device extension handling */
static void wiimote_ext_load(struct wiimote_data *wdata, unsigned int ext)
{
unsigned long flags;
const struct wiimod_ops *ops;
int ret;
ops = wiimod_ext_table[ext];
if (ops->probe) {
ret = ops->probe(ops, wdata);
if (ret)
ext = WIIMOTE_EXT_UNKNOWN;
}
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.exttype = ext;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static void wiimote_ext_unload(struct wiimote_data *wdata)
{
unsigned long flags;
const struct wiimod_ops *ops;
ops = wiimod_ext_table[wdata->state.exttype];
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.exttype = WIIMOTE_EXT_UNKNOWN;
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
spin_unlock_irqrestore(&wdata->state.lock, flags);
if (ops->remove)
ops->remove(ops, wdata);
}
static void wiimote_mp_load(struct wiimote_data *wdata)
{
unsigned long flags;
const struct wiimod_ops *ops;
int ret;
__u8 mode = 2;
ops = &wiimod_mp;
if (ops->probe) {
ret = ops->probe(ops, wdata);
if (ret)
mode = 1;
}
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.mp = mode;
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static void wiimote_mp_unload(struct wiimote_data *wdata)
{
unsigned long flags;
const struct wiimod_ops *ops;
if (wdata->state.mp < 2)
return;
ops = &wiimod_mp;
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.mp = 0;
wdata->state.flags &= ~WIIPROTO_FLAG_MP_USED;
spin_unlock_irqrestore(&wdata->state.lock, flags);
if (ops->remove)
ops->remove(ops, wdata);
}
/* device (re-)initialization and detection */
static const char *wiimote_devtype_names[WIIMOTE_DEV_NUM] = {
[WIIMOTE_DEV_PENDING] = "Pending",
[WIIMOTE_DEV_UNKNOWN] = "Unknown",
[WIIMOTE_DEV_GENERIC] = "Generic",
[WIIMOTE_DEV_GEN10] = "Nintendo Wii Remote (Gen 1)",
[WIIMOTE_DEV_GEN20] = "Nintendo Wii Remote Plus (Gen 2)",
[WIIMOTE_DEV_BALANCE_BOARD] = "Nintendo Wii Balance Board",
[WIIMOTE_DEV_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller",
};
/* Try to guess the device type based on all collected information. We
* first try to detect by static extension types, then VID/PID and the
* device name. If we cannot detect the device, we use
* WIIMOTE_DEV_GENERIC so all modules will get probed on the device. */
static void wiimote_init_set_type(struct wiimote_data *wdata,
__u8 exttype)
{
__u8 devtype = WIIMOTE_DEV_GENERIC;
__u16 vendor, product;
const char *name;
vendor = wdata->hdev->vendor;
product = wdata->hdev->product;
name = wdata->hdev->name;
if (exttype == WIIMOTE_EXT_BALANCE_BOARD) {
devtype = WIIMOTE_DEV_BALANCE_BOARD;
goto done;
} else if (exttype == WIIMOTE_EXT_PRO_CONTROLLER) {
devtype = WIIMOTE_DEV_PRO_CONTROLLER;
goto done;
}
if (!strcmp(name, "Nintendo RVL-CNT-01")) {
devtype = WIIMOTE_DEV_GEN10;
goto done;
} else if (!strcmp(name, "Nintendo RVL-CNT-01-TR")) {
devtype = WIIMOTE_DEV_GEN20;
goto done;
} else if (!strcmp(name, "Nintendo RVL-WBC-01")) {
devtype = WIIMOTE_DEV_BALANCE_BOARD;
goto done;
} else if (!strcmp(name, "Nintendo RVL-CNT-01-UC")) {
devtype = WIIMOTE_DEV_PRO_CONTROLLER;
goto done;
}
if (vendor == USB_VENDOR_ID_NINTENDO) {
if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) {
devtype = WIIMOTE_DEV_GEN10;
goto done;
} else if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE2) {
devtype = WIIMOTE_DEV_GEN20;
goto done;
}
}
done:
if (devtype == WIIMOTE_DEV_GENERIC)
hid_info(wdata->hdev, "cannot detect device; NAME: %s VID: %04x PID: %04x EXT: %04x\n",
name, vendor, product, exttype);
else
hid_info(wdata->hdev, "detected device: %s\n",
wiimote_devtype_names[devtype]);
wiimote_modules_load(wdata, devtype);
}
static void wiimote_init_detect(struct wiimote_data *wdata)
{
__u8 exttype = WIIMOTE_EXT_NONE, extdata[6];
bool ext;
int ret;
wiimote_cmd_acquire_noint(wdata);
spin_lock_irq(&wdata->state.lock);
wdata->state.devtype = WIIMOTE_DEV_UNKNOWN;
wiimote_cmd_set(wdata, WIIPROTO_REQ_SREQ, 0);
wiiproto_req_status(wdata);
spin_unlock_irq(&wdata->state.lock);
ret = wiimote_cmd_wait_noint(wdata);
if (ret)
goto out_release;
spin_lock_irq(&wdata->state.lock);
ext = wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED;
spin_unlock_irq(&wdata->state.lock);
if (!ext)
goto out_release;
wiimote_cmd_init_ext(wdata);
exttype = wiimote_cmd_read_ext(wdata, extdata);
out_release:
wiimote_cmd_release(wdata);
wiimote_init_set_type(wdata, exttype);
/* schedule MP timer */
spin_lock_irq(&wdata->state.lock);
if (!(wdata->state.flags & WIIPROTO_FLAG_BUILTIN_MP) &&
!(wdata->state.flags & WIIPROTO_FLAG_NO_MP))
mod_timer(&wdata->timer, jiffies + HZ * 4);
spin_unlock_irq(&wdata->state.lock);
}
/*
* MP hotplug events are not generated by the wiimote. Therefore, we need
* polling to detect it. We use a 4s interval for polling MP registers. This
* seems reasonable considering applications can trigger it manually via
* sysfs requests.
*/
static void wiimote_init_poll_mp(struct wiimote_data *wdata)
{
bool mp;
__u8 mpdata[6];
wiimote_cmd_acquire_noint(wdata);
wiimote_cmd_init_mp(wdata);
mp = wiimote_cmd_read_mp(wdata, mpdata);
wiimote_cmd_release(wdata);
/* load/unload MP module if it changed */
if (mp) {
if (!wdata->state.mp) {
hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n");
wiimote_mp_load(wdata);
}
} else if (wdata->state.mp) {
wiimote_mp_unload(wdata);
}
mod_timer(&wdata->timer, jiffies + HZ * 4);
}
/*
* Check whether the wiimote is in the expected state. The extension registers
* may change during hotplug and initialization so we might get hotplug events
* that we caused by remapping some memory.
* We use some heuristics here to check known states. If the wiimote is in the
* expected state, we can ignore the hotplug event.
*
* Returns "true" if the device is in expected state, "false" if we should
* redo hotplug handling and extension initialization.
*/
static bool wiimote_init_check(struct wiimote_data *wdata)
{
__u32 flags;
__u8 type, data[6];
bool ret, poll_mp;
spin_lock_irq(&wdata->state.lock);
flags = wdata->state.flags;
spin_unlock_irq(&wdata->state.lock);
wiimote_cmd_acquire_noint(wdata);
/* If MP is used and active, but the extension is not, we expect:
* read_mp_mapped() == WIIMOTE_MP_SINGLE
* state.flags == !EXT_ACTIVE && !MP_PLUGGED && MP_ACTIVE
* We do not check EXT_PLUGGED because it might change during
* initialization of MP without extensions.
* - If MP is unplugged/replugged, read_mp_mapped() fails
* - If EXT is plugged, MP_PLUGGED will get set */
if (wdata->state.exttype == WIIMOTE_EXT_NONE &&
wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) {
type = wiimote_cmd_read_mp_mapped(wdata);
ret = type == WIIMOTE_MP_SINGLE;
spin_lock_irq(&wdata->state.lock);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED);
ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
spin_unlock_irq(&wdata->state.lock);
if (!ret)
hid_dbg(wdata->hdev, "state left: !EXT && MP\n");
/* while MP is mapped, we get EXT_PLUGGED events */
poll_mp = false;
goto out_release;
}
/* If MP is unused, but the extension port is used, we expect:
* read_ext == state.exttype
* state.flags == !MP_ACTIVE && EXT_ACTIVE
* - If MP is plugged/unplugged, our timer detects it
* - If EXT is unplugged/replugged, EXT_ACTIVE will become unset */
if (!(flags & WIIPROTO_FLAG_MP_USED) &&
wdata->state.exttype != WIIMOTE_EXT_NONE) {
type = wiimote_cmd_read_ext(wdata, data);
ret = type == wdata->state.exttype;
spin_lock_irq(&wdata->state.lock);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
spin_unlock_irq(&wdata->state.lock);
if (!ret)
hid_dbg(wdata->hdev, "state left: EXT && !MP\n");
/* poll MP for hotplug events */
poll_mp = true;
goto out_release;
}
/* If neither MP nor an extension are used, we expect:
* read_ext() == WIIMOTE_EXT_NONE
* state.flags == !MP_ACTIVE && !EXT_ACTIVE && !EXT_PLUGGED
* No need to perform any action in this case as everything is
* disabled already.
* - If MP is plugged/unplugged, our timer detects it
* - If EXT is plugged, EXT_PLUGGED will be set */
if (!(flags & WIIPROTO_FLAG_MP_USED) &&
wdata->state.exttype == WIIMOTE_EXT_NONE) {
type = wiimote_cmd_read_ext(wdata, data);
ret = type == wdata->state.exttype;
spin_lock_irq(&wdata->state.lock);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
ret = ret && !(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED);
spin_unlock_irq(&wdata->state.lock);
if (!ret)
hid_dbg(wdata->hdev, "state left: !EXT && !MP\n");
/* poll MP for hotplug events */
poll_mp = true;
goto out_release;
}
/* The trickiest part is if both EXT and MP are active. We cannot read
* the EXT ID, anymore, because MP is mapped over it. However, we use
* a handy trick here:
* - EXT_ACTIVE is unset whenever !MP_PLUGGED is sent
* MP_PLUGGED might be re-sent again before we are scheduled, but
* EXT_ACTIVE will stay unset.
* So it is enough to check for mp_mapped() and MP_ACTIVE and
* EXT_ACTIVE. EXT_PLUGGED is a sanity check. */
if (wdata->state.exttype != WIIMOTE_EXT_NONE &&
wdata->state.mp > 0 && (flags & WIIPROTO_FLAG_MP_USED)) {
type = wiimote_cmd_read_mp_mapped(wdata);
ret = type != WIIMOTE_MP_NONE;
ret = ret && type != WIIMOTE_MP_UNKNOWN;
ret = ret && type != WIIMOTE_MP_SINGLE;
spin_lock_irq(&wdata->state.lock);
ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED);
ret = ret && (wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE);
ret = ret && (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE);
spin_unlock_irq(&wdata->state.lock);
if (!ret)
hid_dbg(wdata->hdev, "state left: EXT && MP\n");
/* while MP is mapped, we get EXT_PLUGGED events */
poll_mp = false;
goto out_release;
}
/* unknown state */
ret = false;
out_release:
wiimote_cmd_release(wdata);
/* only poll for MP if requested and if state didn't change */
if (ret && poll_mp && !(flags & WIIPROTO_FLAG_BUILTIN_MP) &&
!(flags & WIIPROTO_FLAG_NO_MP))
wiimote_init_poll_mp(wdata);
return ret;
}
static const char *wiimote_exttype_names[WIIMOTE_EXT_NUM] = {
[WIIMOTE_EXT_NONE] = "None",
[WIIMOTE_EXT_UNKNOWN] = "Unknown",
[WIIMOTE_EXT_NUNCHUK] = "Nintendo Wii Nunchuk",
[WIIMOTE_EXT_CLASSIC_CONTROLLER] = "Nintendo Wii Classic Controller",
[WIIMOTE_EXT_BALANCE_BOARD] = "Nintendo Wii Balance Board",
[WIIMOTE_EXT_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller",
[WIIMOTE_EXT_DRUMS] = "Nintendo Wii Drums",
[WIIMOTE_EXT_GUITAR] = "Nintendo Wii Guitar",
[WIIMOTE_EXT_TURNTABLE] = "Nintendo Wii Turntable"
};
/*
* Handle hotplug events
* If we receive an hotplug event and the device-check failed, we deinitialize
* the extension ports, re-read all extension IDs and set the device into
* the desired state. This involves mapping MP into the main extension
* registers, setting up extension passthrough modes and initializing the
* requested extensions.
*/
static void wiimote_init_hotplug(struct wiimote_data *wdata)
{
__u8 exttype, extdata[6], mpdata[6];
__u32 flags;
bool mp;
hid_dbg(wdata->hdev, "detect extensions..\n");
wiimote_cmd_acquire_noint(wdata);
spin_lock_irq(&wdata->state.lock);
/* get state snapshot that we will then work on */
flags = wdata->state.flags;
/* disable event forwarding temporarily */
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE;
spin_unlock_irq(&wdata->state.lock);
/* init extension and MP (deactivates current extension or MP) */
wiimote_cmd_init_ext(wdata);
if (flags & WIIPROTO_FLAG_NO_MP) {
mp = false;
} else {
wiimote_cmd_init_mp(wdata);
mp = wiimote_cmd_read_mp(wdata, mpdata);
}
exttype = wiimote_cmd_read_ext(wdata, extdata);
wiimote_cmd_release(wdata);
/* load/unload extension module if it changed */
if (exttype != wdata->state.exttype) {
/* unload previous extension */
wiimote_ext_unload(wdata);
if (exttype == WIIMOTE_EXT_UNKNOWN) {
hid_info(wdata->hdev, "cannot detect extension; %6phC\n",
extdata);
} else if (exttype == WIIMOTE_EXT_NONE) {
spin_lock_irq(&wdata->state.lock);
wdata->state.exttype = WIIMOTE_EXT_NONE;
spin_unlock_irq(&wdata->state.lock);
} else {
hid_info(wdata->hdev, "detected extension: %s\n",
wiimote_exttype_names[exttype]);
/* try loading new extension */
wiimote_ext_load(wdata, exttype);
}
}
/* load/unload MP module if it changed */
if (mp) {
if (!wdata->state.mp) {
hid_info(wdata->hdev, "detected extension: Nintendo Wii Motion Plus\n");
wiimote_mp_load(wdata);
}
} else if (wdata->state.mp) {
wiimote_mp_unload(wdata);
}
/* if MP is not used, do not map or activate it */
if (!(flags & WIIPROTO_FLAG_MP_USED))
mp = false;
/* map MP into main extension registers if used */
if (mp) {
wiimote_cmd_acquire_noint(wdata);
wiimote_cmd_map_mp(wdata, exttype);
wiimote_cmd_release(wdata);
/* delete MP hotplug timer */
del_timer_sync(&wdata->timer);
} else {
/* reschedule MP hotplug timer */
if (!(flags & WIIPROTO_FLAG_BUILTIN_MP) &&
!(flags & WIIPROTO_FLAG_NO_MP))
mod_timer(&wdata->timer, jiffies + HZ * 4);
}
spin_lock_irq(&wdata->state.lock);
/* enable data forwarding again and set expected hotplug state */
if (mp) {
wdata->state.flags |= WIIPROTO_FLAG_MP_ACTIVE;
if (wdata->state.exttype == WIIMOTE_EXT_NONE) {
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
} else {
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED;
wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE;
}
} else if (wdata->state.exttype != WIIMOTE_EXT_NONE) {
wdata->state.flags |= WIIPROTO_FLAG_EXT_ACTIVE;
}
/* request status report for hotplug state updates */
wiiproto_req_status(wdata);
spin_unlock_irq(&wdata->state.lock);
hid_dbg(wdata->hdev, "detected extensions: MP: %d EXT: %d\n",
wdata->state.mp, wdata->state.exttype);
}
static void wiimote_init_worker(struct work_struct *work)
{
struct wiimote_data *wdata = container_of(work, struct wiimote_data,
init_worker);
bool changed = false;
if (wdata->state.devtype == WIIMOTE_DEV_PENDING) {
wiimote_init_detect(wdata);
changed = true;
}
if (changed || !wiimote_init_check(wdata))
wiimote_init_hotplug(wdata);
if (changed)
kobject_uevent(&wdata->hdev->dev.kobj, KOBJ_CHANGE);
}
void __wiimote_schedule(struct wiimote_data *wdata)
{
if (!(wdata->state.flags & WIIPROTO_FLAG_EXITING))
schedule_work(&wdata->init_worker);
}
static void wiimote_schedule(struct wiimote_data *wdata)
{
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
__wiimote_schedule(wdata);
spin_unlock_irqrestore(&wdata->state.lock, flags);
}
static void wiimote_init_timeout(struct timer_list *t)
{
struct wiimote_data *wdata = from_timer(wdata, t, timer);
wiimote_schedule(wdata);
}
/* protocol handlers */
static void handler_keys(struct wiimote_data *wdata, const __u8 *payload)
{
const __u8 *iter, *mods;
const struct wiimod_ops *ops;
ops = wiimod_ext_table[wdata->state.exttype];
if (ops->in_keys) {
ops->in_keys(wdata, payload);
return;
}
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
if (ops->in_keys) {
ops->in_keys(wdata, payload);
break;
}
}
}
static void handler_accel(struct wiimote_data *wdata, const __u8 *payload)
{
const __u8 *iter, *mods;
const struct wiimod_ops *ops;
ops = wiimod_ext_table[wdata->state.exttype];
if (ops->in_accel) {
ops->in_accel(wdata, payload);
return;
}
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
if (ops->in_accel) {
ops->in_accel(wdata, payload);
break;
}
}
}
static bool valid_ext_handler(const struct wiimod_ops *ops, size_t len)
{
if (!ops->in_ext)
return false;
if ((ops->flags & WIIMOD_FLAG_EXT8) && len < 8)
return false;
if ((ops->flags & WIIMOD_FLAG_EXT16) && len < 16)
return false;
return true;
}
static void handler_ext(struct wiimote_data *wdata, const __u8 *payload,
size_t len)
{
static const __u8 invalid[21] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff };
const __u8 *iter, *mods;
const struct wiimod_ops *ops;
bool is_mp;
if (len > 21)
len = 21;
if (len < 6 || !memcmp(payload, invalid, len))
return;
/* if MP is active, track MP slot hotplugging */
if (wdata->state.flags & WIIPROTO_FLAG_MP_ACTIVE) {
/* this bit is set for invalid events (eg. during hotplug) */
if (payload[5] & 0x01)
return;
if (payload[4] & 0x01) {
if (!(wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED)) {
hid_dbg(wdata->hdev, "MP hotplug: 1\n");
wdata->state.flags |= WIIPROTO_FLAG_MP_PLUGGED;
__wiimote_schedule(wdata);
}
} else {
if (wdata->state.flags & WIIPROTO_FLAG_MP_PLUGGED) {
hid_dbg(wdata->hdev, "MP hotplug: 0\n");
wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
__wiimote_schedule(wdata);
}
}
/* detect MP data that is sent interleaved with EXT data */
is_mp = payload[5] & 0x02;
} else {
is_mp = false;
}
/* ignore EXT events if no extension is active */
if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_ACTIVE) && !is_mp)
return;
/* try forwarding to extension handler, first */
ops = wiimod_ext_table[wdata->state.exttype];
if (is_mp && ops->in_mp) {
ops->in_mp(wdata, payload);
return;
} else if (!is_mp && valid_ext_handler(ops, len)) {
ops->in_ext(wdata, payload);
return;
}
/* try forwarding to MP handler */
ops = &wiimod_mp;
if (is_mp && ops->in_mp) {
ops->in_mp(wdata, payload);
return;
} else if (!is_mp && valid_ext_handler(ops, len)) {
ops->in_ext(wdata, payload);
return;
}
/* try forwarding to loaded modules */
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
if (is_mp && ops->in_mp) {
ops->in_mp(wdata, payload);
return;
} else if (!is_mp && valid_ext_handler(ops, len)) {
ops->in_ext(wdata, payload);
return;
}
}
}
#define ir_to_input0(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 0)
#define ir_to_input1(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 1)
#define ir_to_input2(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 2)
#define ir_to_input3(wdata, ir, packed) handler_ir((wdata), (ir), (packed), 3)
static void handler_ir(struct wiimote_data *wdata, const __u8 *payload,
bool packed, unsigned int id)
{
const __u8 *iter, *mods;
const struct wiimod_ops *ops;
ops = wiimod_ext_table[wdata->state.exttype];
if (ops->in_ir) {
ops->in_ir(wdata, payload, packed, id);
return;
}
mods = wiimote_devtype_mods[wdata->state.devtype];
for (iter = mods; *iter != WIIMOD_NULL; ++iter) {
ops = wiimod_table[*iter];
if (ops->in_ir) {
ops->in_ir(wdata, payload, packed, id);
break;
}
}
}
/* reduced status report with "BB BB" key data only */
static void handler_status_K(struct wiimote_data *wdata,
const __u8 *payload)
{
handler_keys(wdata, payload);
/* on status reports the drm is reset so we need to resend the drm */
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
}
/* extended status report with "BB BB LF 00 00 VV" data */
static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
{
handler_status_K(wdata, payload);
/* update extension status */
if (payload[2] & 0x02) {
if (!(wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED)) {
hid_dbg(wdata->hdev, "EXT hotplug: 1\n");
wdata->state.flags |= WIIPROTO_FLAG_EXT_PLUGGED;
__wiimote_schedule(wdata);
}
} else {
if (wdata->state.flags & WIIPROTO_FLAG_EXT_PLUGGED) {
hid_dbg(wdata->hdev, "EXT hotplug: 0\n");
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_PLUGGED;
wdata->state.flags &= ~WIIPROTO_FLAG_MP_PLUGGED;
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_ACTIVE;
wdata->state.flags &= ~WIIPROTO_FLAG_MP_ACTIVE;
__wiimote_schedule(wdata);
}
}
wdata->state.cmd_battery = payload[5];
if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0))
wiimote_cmd_complete(wdata);
}
/* reduced generic report with "BB BB" key data only */
static void handler_generic_K(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
}
static void handler_data(struct wiimote_data *wdata, const __u8 *payload)
{
__u16 offset = payload[3] << 8 | payload[4];
__u8 size = (payload[2] >> 4) + 1;
__u8 err = payload[2] & 0x0f;
handler_keys(wdata, payload);
if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_RMEM, offset)) {
if (err)
size = 0;
else if (size > wdata->state.cmd_read_size)
size = wdata->state.cmd_read_size;
wdata->state.cmd_read_size = size;
if (wdata->state.cmd_read_buf)
memcpy(wdata->state.cmd_read_buf, &payload[5], size);
wiimote_cmd_complete(wdata);
}
}
static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
{
__u8 err = payload[3];
__u8 cmd = payload[2];
handler_keys(wdata, payload);
if (wiimote_cmd_pending(wdata, cmd, 0)) {
wdata->state.cmd_err = err;
wiimote_cmd_complete(wdata);
} else if (err) {
hid_warn(wdata->hdev, "Remote error %u on req %u\n", err,
cmd);
}
}
static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
}
static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_ext(wdata, &payload[2], 8);
}
static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
ir_to_input0(wdata, &payload[5], false);
ir_to_input1(wdata, &payload[8], false);
ir_to_input2(wdata, &payload[11], false);
ir_to_input3(wdata, &payload[14], false);
}
static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_ext(wdata, &payload[2], 19);
}
static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
ir_to_input0(wdata, &payload[2], false);
ir_to_input1(wdata, &payload[4], true);
ir_to_input2(wdata, &payload[7], false);
ir_to_input3(wdata, &payload[9], true);
handler_ext(wdata, &payload[12], 9);
}
static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
handler_ext(wdata, &payload[5], 16);
}
static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
ir_to_input0(wdata, &payload[5], false);
ir_to_input1(wdata, &payload[7], true);
ir_to_input2(wdata, &payload[10], false);
ir_to_input3(wdata, &payload[12], true);
handler_ext(wdata, &payload[15], 6);
}
static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
{
handler_ext(wdata, payload, 21);
}
static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
wdata->state.accel_split[0] = payload[2];
wdata->state.accel_split[1] = (payload[0] >> 1) & (0x10 | 0x20);
wdata->state.accel_split[1] |= (payload[1] << 1) & (0x40 | 0x80);
ir_to_input0(wdata, &payload[3], false);
ir_to_input1(wdata, &payload[12], false);
}
static void handler_drm_SKAI2(struct wiimote_data *wdata, const __u8 *payload)
{
__u8 buf[5];
handler_keys(wdata, payload);
wdata->state.accel_split[1] |= (payload[0] >> 5) & (0x01 | 0x02);
wdata->state.accel_split[1] |= (payload[1] >> 3) & (0x04 | 0x08);
buf[0] = 0;
buf[1] = 0;
buf[2] = wdata->state.accel_split[0];
buf[3] = payload[2];
buf[4] = wdata->state.accel_split[1];
handler_accel(wdata, buf);
ir_to_input2(wdata, &payload[3], false);
ir_to_input3(wdata, &payload[12], false);
}
struct wiiproto_handler {
__u8 id;
size_t size;
void (*func)(struct wiimote_data *wdata, const __u8 *payload);
};
static const struct wiiproto_handler handlers[] = {
{ .id = WIIPROTO_REQ_STATUS, .size = 6, .func = handler_status },
{ .id = WIIPROTO_REQ_STATUS, .size = 2, .func = handler_status_K },
{ .id = WIIPROTO_REQ_DATA, .size = 21, .func = handler_data },
{ .id = WIIPROTO_REQ_DATA, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_RETURN, .size = 4, .func = handler_return },
{ .id = WIIPROTO_REQ_RETURN, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_K, .size = 2, .func = handler_keys },
{ .id = WIIPROTO_REQ_DRM_KA, .size = 5, .func = handler_drm_KA },
{ .id = WIIPROTO_REQ_DRM_KA, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KE, .size = 10, .func = handler_drm_KE },
{ .id = WIIPROTO_REQ_DRM_KE, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KAI, .size = 17, .func = handler_drm_KAI },
{ .id = WIIPROTO_REQ_DRM_KAI, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KEE, .size = 21, .func = handler_drm_KEE },
{ .id = WIIPROTO_REQ_DRM_KEE, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KAE, .size = 21, .func = handler_drm_KAE },
{ .id = WIIPROTO_REQ_DRM_KAE, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KIE, .size = 21, .func = handler_drm_KIE },
{ .id = WIIPROTO_REQ_DRM_KIE, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_KAIE, .size = 21, .func = handler_drm_KAIE },
{ .id = WIIPROTO_REQ_DRM_KAIE, .size = 2, .func = handler_generic_K },
{ .id = WIIPROTO_REQ_DRM_E, .size = 21, .func = handler_drm_E },
{ .id = WIIPROTO_REQ_DRM_SKAI1, .size = 21, .func = handler_drm_SKAI1 },
{ .id = WIIPROTO_REQ_DRM_SKAI2, .size = 21, .func = handler_drm_SKAI2 },
{ .id = 0 }
};
static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
u8 *raw_data, int size)
{
struct wiimote_data *wdata = hid_get_drvdata(hdev);
const struct wiiproto_handler *h;
int i;
unsigned long flags;
if (size < 1)
return -EINVAL;
for (i = 0; handlers[i].id; ++i) {
h = &handlers[i];
if (h->id == raw_data[0] && h->size < size) {
spin_lock_irqsave(&wdata->state.lock, flags);
h->func(wdata, &raw_data[1]);
spin_unlock_irqrestore(&wdata->state.lock, flags);
break;
}
}
if (!handlers[i].id)
hid_warn(hdev, "Unhandled report %hhu size %d\n", raw_data[0],
size);
return 0;
}
static ssize_t wiimote_ext_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct wiimote_data *wdata = dev_to_wii(dev);
__u8 type;
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
type = wdata->state.exttype;
spin_unlock_irqrestore(&wdata->state.lock, flags);
switch (type) {
case WIIMOTE_EXT_NONE:
return sprintf(buf, "none\n");
case WIIMOTE_EXT_NUNCHUK:
return sprintf(buf, "nunchuk\n");
case WIIMOTE_EXT_CLASSIC_CONTROLLER:
return sprintf(buf, "classic\n");
case WIIMOTE_EXT_BALANCE_BOARD:
return sprintf(buf, "balanceboard\n");
case WIIMOTE_EXT_PRO_CONTROLLER:
return sprintf(buf, "procontroller\n");
case WIIMOTE_EXT_DRUMS:
return sprintf(buf, "drums\n");
case WIIMOTE_EXT_GUITAR:
return sprintf(buf, "guitar\n");
case WIIMOTE_EXT_TURNTABLE:
return sprintf(buf, "turntable\n");
case WIIMOTE_EXT_UNKNOWN:
default:
return sprintf(buf, "unknown\n");
}
}
static ssize_t wiimote_ext_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct wiimote_data *wdata = dev_to_wii(dev);
if (!strcmp(buf, "scan")) {
wiimote_schedule(wdata);
} else {
return -EINVAL;
}
return strnlen(buf, PAGE_SIZE);
}
static DEVICE_ATTR(extension, S_IRUGO | S_IWUSR | S_IWGRP, wiimote_ext_show,
wiimote_ext_store);
static ssize_t wiimote_dev_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct wiimote_data *wdata = dev_to_wii(dev);
__u8 type;
unsigned long flags;
spin_lock_irqsave(&wdata->state.lock, flags);
type = wdata->state.devtype;
spin_unlock_irqrestore(&wdata->state.lock, flags);
switch (type) {
case WIIMOTE_DEV_GENERIC:
return sprintf(buf, "generic\n");
case WIIMOTE_DEV_GEN10:
return sprintf(buf, "gen10\n");
case WIIMOTE_DEV_GEN20:
return sprintf(buf, "gen20\n");
case WIIMOTE_DEV_BALANCE_BOARD:
return sprintf(buf, "balanceboard\n");
case WIIMOTE_DEV_PRO_CONTROLLER:
return sprintf(buf, "procontroller\n");
case WIIMOTE_DEV_PENDING:
return sprintf(buf, "pending\n");
case WIIMOTE_DEV_UNKNOWN:
default:
return sprintf(buf, "unknown\n");
}
}
static DEVICE_ATTR(devtype, S_IRUGO, wiimote_dev_show, NULL);
static struct wiimote_data *wiimote_create(struct hid_device *hdev)
{
struct wiimote_data *wdata;
wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
if (!wdata)
return NULL;
wdata->hdev = hdev;
hid_set_drvdata(hdev, wdata);
spin_lock_init(&wdata->queue.lock);
INIT_WORK(&wdata->queue.worker, wiimote_queue_worker);
spin_lock_init(&wdata->state.lock);
init_completion(&wdata->state.ready);
mutex_init(&wdata->state.sync);
wdata->state.drm = WIIPROTO_REQ_DRM_K;
wdata->state.cmd_battery = 0xff;
INIT_WORK(&wdata->init_worker, wiimote_init_worker);
timer_setup(&wdata->timer, wiimote_init_timeout, 0);
return wdata;
}
static void wiimote_destroy(struct wiimote_data *wdata)
{
unsigned long flags;
wiidebug_deinit(wdata);
/* prevent init_worker from being scheduled again */
spin_lock_irqsave(&wdata->state.lock, flags);
wdata->state.flags |= WIIPROTO_FLAG_EXITING;
spin_unlock_irqrestore(&wdata->state.lock, flags);
cancel_work_sync(&wdata->init_worker);
timer_shutdown_sync(&wdata->timer);
device_remove_file(&wdata->hdev->dev, &dev_attr_devtype);
device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
wiimote_mp_unload(wdata);
wiimote_ext_unload(wdata);
wiimote_modules_unload(wdata);
cancel_work_sync(&wdata->queue.worker);
hid_hw_close(wdata->hdev);
hid_hw_stop(wdata->hdev);
kfree(wdata);
}
static int wiimote_hid_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct wiimote_data *wdata;
int ret;
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
wdata = wiimote_create(hdev);
if (!wdata) {
hid_err(hdev, "Can't alloc device\n");
return -ENOMEM;
}
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "HID parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "HW start failed\n");
goto err;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "cannot start hardware I/O\n");
goto err_stop;
}
ret = device_create_file(&hdev->dev, &dev_attr_extension);
if (ret) {
hid_err(hdev, "cannot create sysfs attribute\n");
goto err_close;
}
ret = device_create_file(&hdev->dev, &dev_attr_devtype);
if (ret) {
hid_err(hdev, "cannot create sysfs attribute\n");
goto err_ext;
}
ret = wiidebug_init(wdata);
if (ret)
goto err_free;
hid_info(hdev, "New device registered\n");
/* schedule device detection */
wiimote_schedule(wdata);
return 0;
err_free:
wiimote_destroy(wdata);
return ret;
err_ext:
device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
err_close:
hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
err:
input_free_device(wdata->ir);
input_free_device(wdata->accel);
kfree(wdata);
return ret;
}
static void wiimote_hid_remove(struct hid_device *hdev)
{
struct wiimote_data *wdata = hid_get_drvdata(hdev);
hid_info(hdev, "Device removed\n");
wiimote_destroy(wdata);
}
static const struct hid_device_id wiimote_hid_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_WIIMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
{ }
};
bool wiimote_dpad_as_analog = false;
module_param_named(dpad_as_analog, wiimote_dpad_as_analog, bool, 0644);
MODULE_PARM_DESC(dpad_as_analog, "Use D-Pad as main analog input");
MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
static struct hid_driver wiimote_hid_driver = {
.name = "wiimote",
.id_table = wiimote_hid_devices,
.probe = wiimote_hid_probe,
.remove = wiimote_hid_remove,
.raw_event = wiimote_hid_event,
};
module_hid_driver(wiimote_hid_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <[email protected]>");
MODULE_DESCRIPTION("Driver for Nintendo Wii / Wii U peripherals");
| linux-master | drivers/hid/hid-wiimote-core.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Retrode 2 controller adapter and plug-in extensions
*
* Copyright (c) 2017 Bastien Nocera <[email protected]>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define CONTROLLER_NAME_BASE "Retrode"
static int retrode_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
struct hid_field *field = hi->report->field[0];
const char *suffix;
int number = 0;
char *name;
switch (field->report->id) {
case 0:
suffix = "SNES Mouse";
break;
case 1:
case 2:
suffix = "SNES / N64";
number = field->report->id;
break;
case 3:
case 4:
suffix = "Mega Drive";
number = field->report->id - 2;
break;
default:
hid_err(hdev, "Got unhandled report id %d\n", field->report->id);
suffix = "Unknown";
}
if (number)
name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s #%d", CONTROLLER_NAME_BASE,
suffix, number);
else
name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", CONTROLLER_NAME_BASE, suffix);
if (!name)
return -ENOMEM;
hi->input->name = name;
return 0;
}
static int retrode_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
/* Has no effect on the mouse device */
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
ret = hid_parse(hdev);
if (ret)
return ret;
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
return ret;
return 0;
}
static const struct hid_device_id retrode_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY, USB_DEVICE_ID_RETRODE2) },
{ }
};
MODULE_DEVICE_TABLE(hid, retrode_devices);
static struct hid_driver retrode_driver = {
.name = "hid-retrode",
.id_table = retrode_devices,
.input_configured = retrode_input_configured,
.probe = retrode_probe,
};
module_hid_driver(retrode_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-retrode.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID Sensors Driver
* Copyright (c) 2012, Intel Corporation.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/mfd/core.h>
#include <linux/list.h>
#include <linux/hid-sensor-ids.h>
#include <linux/hid-sensor-hub.h>
#include "hid-ids.h"
#define HID_SENSOR_HUB_ENUM_QUIRK 0x01
/**
* struct sensor_hub_data - Hold a instance data for a HID hub device
* @mutex: Mutex to serialize synchronous request.
* @lock: Spin lock to protect pending request structure.
* @dyn_callback_list: Holds callback function
* @dyn_callback_lock: spin lock to protect callback list
* @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance.
* @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached).
* @ref_cnt: Number of MFD clients have opened this device
*/
struct sensor_hub_data {
struct mutex mutex;
spinlock_t lock;
struct list_head dyn_callback_list;
spinlock_t dyn_callback_lock;
struct mfd_cell *hid_sensor_hub_client_devs;
int hid_sensor_client_cnt;
int ref_cnt;
};
/**
* struct hid_sensor_hub_callbacks_list - Stores callback list
* @list: list head.
* @usage_id: usage id for a physical device.
* @hsdev: Stored hid instance for current hub device.
* @usage_callback: Stores registered callback functions.
* @priv: Private data for a physical device.
*/
struct hid_sensor_hub_callbacks_list {
struct list_head list;
u32 usage_id;
struct hid_sensor_hub_device *hsdev;
struct hid_sensor_hub_callbacks *usage_callback;
void *priv;
};
static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev,
int dir)
{
struct hid_report *report;
list_for_each_entry(report, &hdev->report_enum[dir].report_list, list) {
if (report->id == id)
return report;
}
hid_warn(hdev, "No report with id 0x%x found\n", id);
return NULL;
}
static int sensor_hub_get_physical_device_count(struct hid_device *hdev)
{
int i;
int count = 0;
for (i = 0; i < hdev->maxcollection; ++i) {
struct hid_collection *collection = &hdev->collection[i];
if (collection->type == HID_COLLECTION_PHYSICAL ||
collection->type == HID_COLLECTION_APPLICATION)
++count;
}
return count;
}
static void sensor_hub_fill_attr_info(
struct hid_sensor_hub_attribute_info *info,
s32 index, s32 report_id, struct hid_field *field)
{
info->index = index;
info->report_id = report_id;
info->units = field->unit;
info->unit_expo = field->unit_exponent;
info->size = (field->report_size * field->report_count)/8;
info->logical_minimum = field->logical_minimum;
info->logical_maximum = field->logical_maximum;
}
static struct hid_sensor_hub_callbacks *sensor_hub_get_callback(
struct hid_device *hdev,
u32 usage_id,
int collection_index,
struct hid_sensor_hub_device **hsdev,
void **priv)
{
struct hid_sensor_hub_callbacks_list *callback;
struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
unsigned long flags;
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
if ((callback->usage_id == usage_id ||
callback->usage_id == HID_USAGE_SENSOR_COLLECTION) &&
(collection_index >=
callback->hsdev->start_collection_index) &&
(collection_index <
callback->hsdev->end_collection_index)) {
*priv = callback->priv;
*hsdev = callback->hsdev;
spin_unlock_irqrestore(&pdata->dyn_callback_lock,
flags);
return callback->usage_callback;
}
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return NULL;
}
int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
struct hid_sensor_hub_callbacks *usage_callback)
{
struct hid_sensor_hub_callbacks_list *callback;
struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
if (callback->usage_id == usage_id &&
callback->hsdev == hsdev) {
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return -EINVAL;
}
callback = kzalloc(sizeof(*callback), GFP_ATOMIC);
if (!callback) {
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return -ENOMEM;
}
callback->hsdev = hsdev;
callback->usage_callback = usage_callback;
callback->usage_id = usage_id;
callback->priv = NULL;
/*
* If there is a handler registered for the collection type, then
* it will handle all reports for sensors in this collection. If
* there is also an individual sensor handler registration, then
* we want to make sure that the reports are directed to collection
* handler, as this may be a fusion sensor. So add collection handlers
* to the beginning of the list, so that they are matched first.
*/
if (usage_id == HID_USAGE_SENSOR_COLLECTION)
list_add(&callback->list, &pdata->dyn_callback_list);
else
list_add_tail(&callback->list, &pdata->dyn_callback_list);
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return 0;
}
EXPORT_SYMBOL_GPL(sensor_hub_register_callback);
int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
u32 usage_id)
{
struct hid_sensor_hub_callbacks_list *callback;
struct sensor_hub_data *pdata = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
list_for_each_entry(callback, &pdata->dyn_callback_list, list)
if (callback->usage_id == usage_id &&
callback->hsdev == hsdev) {
list_del(&callback->list);
kfree(callback);
break;
}
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return 0;
}
EXPORT_SYMBOL_GPL(sensor_hub_remove_callback);
int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
u32 field_index, int buffer_size, void *buffer)
{
struct hid_report *report;
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
__s32 *buf32 = buffer;
int i = 0;
int remaining_bytes;
__s32 value;
int ret = 0;
mutex_lock(&data->mutex);
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
if (!report || (field_index >= report->maxfield)) {
ret = -EINVAL;
goto done_proc;
}
remaining_bytes = buffer_size % sizeof(__s32);
buffer_size = buffer_size / sizeof(__s32);
if (buffer_size) {
for (i = 0; i < buffer_size; ++i) {
ret = hid_set_field(report->field[field_index], i,
(__force __s32)cpu_to_le32(*buf32));
if (ret)
goto done_proc;
++buf32;
}
}
if (remaining_bytes) {
value = 0;
memcpy(&value, (u8 *)buf32, remaining_bytes);
ret = hid_set_field(report->field[field_index], i,
(__force __s32)cpu_to_le32(value));
if (ret)
goto done_proc;
}
hid_hw_request(hsdev->hdev, report, HID_REQ_SET_REPORT);
hid_hw_wait(hsdev->hdev);
done_proc:
mutex_unlock(&data->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(sensor_hub_set_feature);
int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
u32 field_index, int buffer_size, void *buffer)
{
struct hid_report *report;
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
int report_size;
int ret = 0;
u8 *val_ptr;
int buffer_index = 0;
int i;
memset(buffer, 0, buffer_size);
mutex_lock(&data->mutex);
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
if (!report || (field_index >= report->maxfield) ||
report->field[field_index]->report_count < 1) {
ret = -EINVAL;
goto done_proc;
}
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
hid_hw_wait(hsdev->hdev);
/* calculate number of bytes required to read this field */
report_size = DIV_ROUND_UP(report->field[field_index]->report_size,
8) *
report->field[field_index]->report_count;
if (!report_size) {
ret = -EINVAL;
goto done_proc;
}
ret = min(report_size, buffer_size);
val_ptr = (u8 *)report->field[field_index]->value;
for (i = 0; i < report->field[field_index]->report_count; ++i) {
if (buffer_index >= ret)
break;
memcpy(&((u8 *)buffer)[buffer_index], val_ptr,
report->field[field_index]->report_size / 8);
val_ptr += sizeof(__s32);
buffer_index += (report->field[field_index]->report_size / 8);
}
done_proc:
mutex_unlock(&data->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
u32 attr_usage_id, u32 report_id,
enum sensor_hub_read_flags flag,
bool is_signed)
{
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
struct hid_report *report;
int ret_val = 0;
report = sensor_hub_report(report_id, hsdev->hdev,
HID_INPUT_REPORT);
if (!report)
return -EINVAL;
mutex_lock(hsdev->mutex_ptr);
if (flag == SENSOR_HUB_SYNC) {
memset(&hsdev->pending, 0, sizeof(hsdev->pending));
init_completion(&hsdev->pending.ready);
hsdev->pending.usage_id = usage_id;
hsdev->pending.attr_usage_id = attr_usage_id;
hsdev->pending.raw_size = 0;
spin_lock_irqsave(&data->lock, flags);
hsdev->pending.status = true;
spin_unlock_irqrestore(&data->lock, flags);
}
mutex_lock(&data->mutex);
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
mutex_unlock(&data->mutex);
if (flag == SENSOR_HUB_SYNC) {
wait_for_completion_interruptible_timeout(
&hsdev->pending.ready, HZ*5);
switch (hsdev->pending.raw_size) {
case 1:
if (is_signed)
ret_val = *(s8 *)hsdev->pending.raw_data;
else
ret_val = *(u8 *)hsdev->pending.raw_data;
break;
case 2:
if (is_signed)
ret_val = *(s16 *)hsdev->pending.raw_data;
else
ret_val = *(u16 *)hsdev->pending.raw_data;
break;
case 4:
ret_val = *(u32 *)hsdev->pending.raw_data;
break;
default:
ret_val = 0;
}
kfree(hsdev->pending.raw_data);
hsdev->pending.status = false;
}
mutex_unlock(hsdev->mutex_ptr);
return ret_val;
}
EXPORT_SYMBOL_GPL(sensor_hub_input_attr_get_raw_value);
int hid_sensor_get_usage_index(struct hid_sensor_hub_device *hsdev,
u32 report_id, int field_index, u32 usage_id)
{
struct hid_report *report;
struct hid_field *field;
int i;
report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
if (!report || (field_index >= report->maxfield))
goto done_proc;
field = report->field[field_index];
for (i = 0; i < field->maxusage; ++i) {
if (field->usage[i].hid == usage_id)
return field->usage[i].usage_index;
}
done_proc:
return -EINVAL;
}
EXPORT_SYMBOL_GPL(hid_sensor_get_usage_index);
int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
u8 type,
u32 usage_id,
u32 attr_usage_id,
struct hid_sensor_hub_attribute_info *info)
{
int ret = -1;
int i;
struct hid_report *report;
struct hid_field *field;
struct hid_report_enum *report_enum;
struct hid_device *hdev = hsdev->hdev;
/* Initialize with defaults */
info->usage_id = usage_id;
info->attrib_id = attr_usage_id;
info->report_id = -1;
info->index = -1;
info->units = -1;
info->unit_expo = -1;
report_enum = &hdev->report_enum[type];
list_for_each_entry(report, &report_enum->report_list, list) {
for (i = 0; i < report->maxfield; ++i) {
field = report->field[i];
if (field->maxusage) {
if ((field->physical == usage_id ||
field->application == usage_id) &&
(field->logical == attr_usage_id ||
field->usage[0].hid ==
attr_usage_id) &&
(field->usage[0].collection_index >=
hsdev->start_collection_index) &&
(field->usage[0].collection_index <
hsdev->end_collection_index)) {
sensor_hub_fill_attr_info(info, i,
report->id,
field);
ret = 0;
break;
}
}
}
}
return ret;
}
EXPORT_SYMBOL_GPL(sensor_hub_input_get_attribute_info);
#ifdef CONFIG_PM
static int sensor_hub_suspend(struct hid_device *hdev, pm_message_t message)
{
struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
struct hid_sensor_hub_callbacks_list *callback;
unsigned long flags;
hid_dbg(hdev, " sensor_hub_suspend\n");
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
if (callback->usage_callback->suspend)
callback->usage_callback->suspend(
callback->hsdev, callback->priv);
}
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return 0;
}
static int sensor_hub_resume(struct hid_device *hdev)
{
struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
struct hid_sensor_hub_callbacks_list *callback;
unsigned long flags;
hid_dbg(hdev, " sensor_hub_resume\n");
spin_lock_irqsave(&pdata->dyn_callback_lock, flags);
list_for_each_entry(callback, &pdata->dyn_callback_list, list) {
if (callback->usage_callback->resume)
callback->usage_callback->resume(
callback->hsdev, callback->priv);
}
spin_unlock_irqrestore(&pdata->dyn_callback_lock, flags);
return 0;
}
static int sensor_hub_reset_resume(struct hid_device *hdev)
{
return 0;
}
#endif
/*
* Handle raw report as sent by device
*/
static int sensor_hub_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
int i;
u8 *ptr;
int sz;
struct sensor_hub_data *pdata = hid_get_drvdata(hdev);
unsigned long flags;
struct hid_sensor_hub_callbacks *callback = NULL;
struct hid_collection *collection = NULL;
void *priv = NULL;
struct hid_sensor_hub_device *hsdev = NULL;
hid_dbg(hdev, "sensor_hub_raw_event report id:0x%x size:%d type:%d\n",
report->id, size, report->type);
hid_dbg(hdev, "maxfield:%d\n", report->maxfield);
if (report->type != HID_INPUT_REPORT)
return 1;
ptr = raw_data;
if (report->id)
ptr++; /* Skip report id */
spin_lock_irqsave(&pdata->lock, flags);
for (i = 0; i < report->maxfield; ++i) {
hid_dbg(hdev, "%d collection_index:%x hid:%x sz:%x\n",
i, report->field[i]->usage->collection_index,
report->field[i]->usage->hid,
(report->field[i]->report_size *
report->field[i]->report_count)/8);
sz = (report->field[i]->report_size *
report->field[i]->report_count)/8;
collection = &hdev->collection[
report->field[i]->usage->collection_index];
hid_dbg(hdev, "collection->usage %x\n",
collection->usage);
callback = sensor_hub_get_callback(hdev,
report->field[i]->physical ? report->field[i]->physical :
report->field[i]->application,
report->field[i]->usage[0].collection_index,
&hsdev, &priv);
if (!callback) {
ptr += sz;
continue;
}
if (hsdev->pending.status && (hsdev->pending.attr_usage_id ==
report->field[i]->usage->hid ||
hsdev->pending.attr_usage_id ==
report->field[i]->logical)) {
hid_dbg(hdev, "data was pending ...\n");
hsdev->pending.raw_data = kmemdup(ptr, sz, GFP_ATOMIC);
if (hsdev->pending.raw_data)
hsdev->pending.raw_size = sz;
else
hsdev->pending.raw_size = 0;
complete(&hsdev->pending.ready);
}
if (callback->capture_sample) {
if (report->field[i]->logical)
callback->capture_sample(hsdev,
report->field[i]->logical, sz, ptr,
callback->pdev);
else
callback->capture_sample(hsdev,
report->field[i]->usage->hid, sz, ptr,
callback->pdev);
}
ptr += sz;
}
if (callback && collection && callback->send_event)
callback->send_event(hsdev, collection->usage,
callback->pdev);
spin_unlock_irqrestore(&pdata->lock, flags);
return 1;
}
int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev)
{
int ret = 0;
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
mutex_lock(&data->mutex);
if (!data->ref_cnt) {
ret = hid_hw_open(hsdev->hdev);
if (ret) {
hid_err(hsdev->hdev, "failed to open hid device\n");
mutex_unlock(&data->mutex);
return ret;
}
}
data->ref_cnt++;
mutex_unlock(&data->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(sensor_hub_device_open);
void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev)
{
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
mutex_lock(&data->mutex);
data->ref_cnt--;
if (!data->ref_cnt)
hid_hw_close(hsdev->hdev);
mutex_unlock(&data->mutex);
}
EXPORT_SYMBOL_GPL(sensor_hub_device_close);
static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
/*
* Checks if the report descriptor of Thinkpad Helix 2 has a logical
* minimum for magnetic flux axis greater than the maximum.
*/
if (hdev->product == USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA &&
*rsize == 2558 && rdesc[913] == 0x17 && rdesc[914] == 0x40 &&
rdesc[915] == 0x81 && rdesc[916] == 0x08 &&
rdesc[917] == 0x00 && rdesc[918] == 0x27 &&
rdesc[921] == 0x07 && rdesc[922] == 0x00) {
/* Sets negative logical minimum for mag x, y and z */
rdesc[914] = rdesc[935] = rdesc[956] = 0xc0;
rdesc[915] = rdesc[936] = rdesc[957] = 0x7e;
rdesc[916] = rdesc[937] = rdesc[958] = 0xf7;
rdesc[917] = rdesc[938] = rdesc[959] = 0xff;
}
return rdesc;
}
static int sensor_hub_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
struct sensor_hub_data *sd;
int i;
char *name;
int dev_cnt;
struct hid_sensor_hub_device *hsdev;
struct hid_sensor_hub_device *last_hsdev = NULL;
struct hid_sensor_hub_device *collection_hsdev = NULL;
sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
if (!sd) {
hid_err(hdev, "cannot allocate Sensor data\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, sd);
spin_lock_init(&sd->lock);
spin_lock_init(&sd->dyn_callback_lock);
mutex_init(&sd->mutex);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
INIT_LIST_HEAD(&hdev->inputs);
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
INIT_LIST_HEAD(&sd->dyn_callback_list);
sd->hid_sensor_client_cnt = 0;
dev_cnt = sensor_hub_get_physical_device_count(hdev);
if (dev_cnt > HID_MAX_PHY_DEVICES) {
hid_err(hdev, "Invalid Physical device count\n");
ret = -EINVAL;
goto err_stop_hw;
}
sd->hid_sensor_hub_client_devs = devm_kcalloc(&hdev->dev,
dev_cnt,
sizeof(struct mfd_cell),
GFP_KERNEL);
if (sd->hid_sensor_hub_client_devs == NULL) {
hid_err(hdev, "Failed to allocate memory for mfd cells\n");
ret = -ENOMEM;
goto err_stop_hw;
}
for (i = 0; i < hdev->maxcollection; ++i) {
struct hid_collection *collection = &hdev->collection[i];
if (collection->type == HID_COLLECTION_PHYSICAL ||
collection->type == HID_COLLECTION_APPLICATION) {
hsdev = devm_kzalloc(&hdev->dev, sizeof(*hsdev),
GFP_KERNEL);
if (!hsdev) {
hid_err(hdev, "cannot allocate hid_sensor_hub_device\n");
ret = -ENOMEM;
goto err_stop_hw;
}
hsdev->hdev = hdev;
hsdev->vendor_id = hdev->vendor;
hsdev->product_id = hdev->product;
hsdev->usage = collection->usage;
hsdev->mutex_ptr = devm_kzalloc(&hdev->dev,
sizeof(struct mutex),
GFP_KERNEL);
if (!hsdev->mutex_ptr) {
ret = -ENOMEM;
goto err_stop_hw;
}
mutex_init(hsdev->mutex_ptr);
hsdev->start_collection_index = i;
if (last_hsdev)
last_hsdev->end_collection_index = i;
last_hsdev = hsdev;
name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"HID-SENSOR-%x",
collection->usage);
if (name == NULL) {
hid_err(hdev, "Failed MFD device name\n");
ret = -ENOMEM;
goto err_stop_hw;
}
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].name = name;
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].platform_data =
hsdev;
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].pdata_size =
sizeof(*hsdev);
hid_dbg(hdev, "Adding %s:%d\n", name,
hsdev->start_collection_index);
sd->hid_sensor_client_cnt++;
if (collection_hsdev)
collection_hsdev->end_collection_index = i;
if (collection->type == HID_COLLECTION_APPLICATION &&
collection->usage == HID_USAGE_SENSOR_COLLECTION)
collection_hsdev = hsdev;
}
}
if (last_hsdev)
last_hsdev->end_collection_index = i;
if (collection_hsdev)
collection_hsdev->end_collection_index = i;
ret = mfd_add_hotplug_devices(&hdev->dev,
sd->hid_sensor_hub_client_devs,
sd->hid_sensor_client_cnt);
if (ret < 0)
goto err_stop_hw;
return ret;
err_stop_hw:
hid_hw_stop(hdev);
return ret;
}
static void sensor_hub_remove(struct hid_device *hdev)
{
struct sensor_hub_data *data = hid_get_drvdata(hdev);
unsigned long flags;
int i;
hid_dbg(hdev, " hardware removed\n");
hid_hw_close(hdev);
hid_hw_stop(hdev);
spin_lock_irqsave(&data->lock, flags);
for (i = 0; i < data->hid_sensor_client_cnt; ++i) {
struct hid_sensor_hub_device *hsdev =
data->hid_sensor_hub_client_devs[i].platform_data;
if (hsdev->pending.status)
complete(&hsdev->pending.ready);
}
spin_unlock_irqrestore(&data->lock, flags);
mfd_remove_devices(&hdev->dev);
mutex_destroy(&data->mutex);
}
static const struct hid_device_id sensor_hub_devices[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID,
HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, sensor_hub_devices);
static struct hid_driver sensor_hub_driver = {
.name = "hid-sensor-hub",
.id_table = sensor_hub_devices,
.probe = sensor_hub_probe,
.remove = sensor_hub_remove,
.raw_event = sensor_hub_raw_event,
.report_fixup = sensor_hub_report_fixup,
#ifdef CONFIG_PM
.suspend = sensor_hub_suspend,
.resume = sensor_hub_resume,
.reset_resume = sensor_hub_reset_resume,
#endif
};
module_hid_driver(sensor_hub_driver);
MODULE_DESCRIPTION("HID Sensor Hub driver");
MODULE_AUTHOR("Srinivas Pandruvada <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-sensor-hub.c |
// SPDX-License-Identifier: GPL-2.0
/*
* HID support for Vivaldi Keyboard
*
* Copyright 2020 Google LLC.
* Author: Sean O'Brien <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input/vivaldi-fmap.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include "hid-vivaldi-common.h"
static int vivaldi_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct vivaldi_data *drvdata;
int ret;
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
hid_set_drvdata(hdev, drvdata);
ret = hid_parse(hdev);
if (ret)
return ret;
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
static const struct hid_device_id vivaldi_table[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_VIVALDI, HID_ANY_ID, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, vivaldi_table);
static struct hid_driver hid_vivaldi = {
.name = "hid-vivaldi",
.id_table = vivaldi_table,
.probe = vivaldi_probe,
.feature_mapping = vivaldi_feature_mapping,
.driver = {
.dev_groups = vivaldi_attribute_groups,
},
};
module_hid_driver(hid_vivaldi);
MODULE_AUTHOR("Sean O'Brien");
MODULE_DESCRIPTION("HID vivaldi driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-vivaldi.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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) 2006-2012 Jiri Kosina
*/
/*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#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/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/semaphore.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/hid-debug.h>
#include <linux/hidraw.h>
#include "hid-ids.h"
/*
* Version Information
*/
#define DRIVER_DESC "HID core driver"
static int hid_ignore_special_drivers = 0;
module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
MODULE_PARM_DESC(ignore_special_drivers, "Ignore any special drivers and handle all devices by generic driver");
/*
* Register a new report for a device.
*/
struct hid_report *hid_register_report(struct hid_device *device,
enum hid_report_type type, unsigned int id,
unsigned int application)
{
struct hid_report_enum *report_enum = device->report_enum + type;
struct hid_report *report;
if (id >= HID_MAX_IDS)
return NULL;
if (report_enum->report_id_hash[id])
return report_enum->report_id_hash[id];
report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
if (!report)
return NULL;
if (id != 0)
report_enum->numbered = 1;
report->id = id;
report->type = type;
report->size = 0;
report->device = device;
report->application = application;
report_enum->report_id_hash[id] = report;
list_add_tail(&report->list, &report_enum->report_list);
INIT_LIST_HEAD(&report->field_entry_list);
return report;
}
EXPORT_SYMBOL_GPL(hid_register_report);
/*
* Register a new field for this report.
*/
static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages)
{
struct hid_field *field;
if (report->maxfield == HID_MAX_FIELDS) {
hid_err(report->device, "too many fields in report\n");
return NULL;
}
field = kzalloc((sizeof(struct hid_field) +
usages * sizeof(struct hid_usage) +
3 * usages * sizeof(unsigned int)), GFP_KERNEL);
if (!field)
return NULL;
field->index = report->maxfield++;
report->field[field->index] = field;
field->usage = (struct hid_usage *)(field + 1);
field->value = (s32 *)(field->usage + usages);
field->new_value = (s32 *)(field->value + usages);
field->usages_priorities = (s32 *)(field->new_value + usages);
field->report = report;
return field;
}
/*
* Open a collection. The type/usage is pushed on the stack.
*/
static int open_collection(struct hid_parser *parser, unsigned type)
{
struct hid_collection *collection;
unsigned usage;
int collection_index;
usage = parser->local.usage[0];
if (parser->collection_stack_ptr == parser->collection_stack_size) {
unsigned int *collection_stack;
unsigned int new_size = parser->collection_stack_size +
HID_COLLECTION_STACK_SIZE;
collection_stack = krealloc(parser->collection_stack,
new_size * sizeof(unsigned int),
GFP_KERNEL);
if (!collection_stack)
return -ENOMEM;
parser->collection_stack = collection_stack;
parser->collection_stack_size = new_size;
}
if (parser->device->maxcollection == parser->device->collection_size) {
collection = kmalloc(
array3_size(sizeof(struct hid_collection),
parser->device->collection_size,
2),
GFP_KERNEL);
if (collection == NULL) {
hid_err(parser->device, "failed to reallocate collection array\n");
return -ENOMEM;
}
memcpy(collection, parser->device->collection,
sizeof(struct hid_collection) *
parser->device->collection_size);
memset(collection + parser->device->collection_size, 0,
sizeof(struct hid_collection) *
parser->device->collection_size);
kfree(parser->device->collection);
parser->device->collection = collection;
parser->device->collection_size *= 2;
}
parser->collection_stack[parser->collection_stack_ptr++] =
parser->device->maxcollection;
collection_index = parser->device->maxcollection++;
collection = parser->device->collection + collection_index;
collection->type = type;
collection->usage = usage;
collection->level = parser->collection_stack_ptr - 1;
collection->parent_idx = (collection->level == 0) ? -1 :
parser->collection_stack[collection->level - 1];
if (type == HID_COLLECTION_APPLICATION)
parser->device->maxapplication++;
return 0;
}
/*
* Close a collection.
*/
static int close_collection(struct hid_parser *parser)
{
if (!parser->collection_stack_ptr) {
hid_err(parser->device, "collection stack underflow\n");
return -EINVAL;
}
parser->collection_stack_ptr--;
return 0;
}
/*
* Climb up the stack, search for the specified collection type
* and return the usage.
*/
static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
{
struct hid_collection *collection = parser->device->collection;
int n;
for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
unsigned index = parser->collection_stack[n];
if (collection[index].type == type)
return collection[index].usage;
}
return 0; /* we know nothing about this usage type */
}
/*
* Concatenate usage which defines 16 bits or less with the
* currently defined usage page to form a 32 bit usage
*/
static void complete_usage(struct hid_parser *parser, unsigned int index)
{
parser->local.usage[index] &= 0xFFFF;
parser->local.usage[index] |=
(parser->global.usage_page & 0xFFFF) << 16;
}
/*
* Add a usage to the temporary parser table.
*/
static int hid_add_usage(struct hid_parser *parser, unsigned usage, u8 size)
{
if (parser->local.usage_index >= HID_MAX_USAGES) {
hid_err(parser->device, "usage index exceeded\n");
return -1;
}
parser->local.usage[parser->local.usage_index] = usage;
/*
* If Usage item only includes usage id, concatenate it with
* currently defined usage page
*/
if (size <= 2)
complete_usage(parser, parser->local.usage_index);
parser->local.usage_size[parser->local.usage_index] = size;
parser->local.collection_index[parser->local.usage_index] =
parser->collection_stack_ptr ?
parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
parser->local.usage_index++;
return 0;
}
/*
* Register a new field for this report.
*/
static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
{
struct hid_report *report;
struct hid_field *field;
unsigned int max_buffer_size = HID_MAX_BUFFER_SIZE;
unsigned int usages;
unsigned int offset;
unsigned int i;
unsigned int application;
application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
report = hid_register_report(parser->device, report_type,
parser->global.report_id, application);
if (!report) {
hid_err(parser->device, "hid_register_report failed\n");
return -1;
}
/* Handle both signed and unsigned cases properly */
if ((parser->global.logical_minimum < 0 &&
parser->global.logical_maximum <
parser->global.logical_minimum) ||
(parser->global.logical_minimum >= 0 &&
(__u32)parser->global.logical_maximum <
(__u32)parser->global.logical_minimum)) {
dbg_hid("logical range invalid 0x%x 0x%x\n",
parser->global.logical_minimum,
parser->global.logical_maximum);
return -1;
}
offset = report->size;
report->size += parser->global.report_size * parser->global.report_count;
if (parser->device->ll_driver->max_buffer_size)
max_buffer_size = parser->device->ll_driver->max_buffer_size;
/* Total size check: Allow for possible report index byte */
if (report->size > (max_buffer_size - 1) << 3) {
hid_err(parser->device, "report is too long\n");
return -1;
}
if (!parser->local.usage_index) /* Ignore padding fields */
return 0;
usages = max_t(unsigned, parser->local.usage_index,
parser->global.report_count);
field = hid_register_field(report, usages);
if (!field)
return 0;
field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
field->application = application;
for (i = 0; i < usages; i++) {
unsigned j = i;
/* Duplicate the last usage we parsed if we have excess values */
if (i >= parser->local.usage_index)
j = parser->local.usage_index - 1;
field->usage[i].hid = parser->local.usage[j];
field->usage[i].collection_index =
parser->local.collection_index[j];
field->usage[i].usage_index = i;
field->usage[i].resolution_multiplier = 1;
}
field->maxusage = usages;
field->flags = flags;
field->report_offset = offset;
field->report_type = report_type;
field->report_size = parser->global.report_size;
field->report_count = parser->global.report_count;
field->logical_minimum = parser->global.logical_minimum;
field->logical_maximum = parser->global.logical_maximum;
field->physical_minimum = parser->global.physical_minimum;
field->physical_maximum = parser->global.physical_maximum;
field->unit_exponent = parser->global.unit_exponent;
field->unit = parser->global.unit;
return 0;
}
/*
* Read data value from item.
*/
static u32 item_udata(struct hid_item *item)
{
switch (item->size) {
case 1: return item->data.u8;
case 2: return item->data.u16;
case 4: return item->data.u32;
}
return 0;
}
static s32 item_sdata(struct hid_item *item)
{
switch (item->size) {
case 1: return item->data.s8;
case 2: return item->data.s16;
case 4: return item->data.s32;
}
return 0;
}
/*
* Process a global item.
*/
static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
{
__s32 raw_value;
switch (item->tag) {
case HID_GLOBAL_ITEM_TAG_PUSH:
if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
hid_err(parser->device, "global environment stack overflow\n");
return -1;
}
memcpy(parser->global_stack + parser->global_stack_ptr++,
&parser->global, sizeof(struct hid_global));
return 0;
case HID_GLOBAL_ITEM_TAG_POP:
if (!parser->global_stack_ptr) {
hid_err(parser->device, "global environment stack underflow\n");
return -1;
}
memcpy(&parser->global, parser->global_stack +
--parser->global_stack_ptr, sizeof(struct hid_global));
return 0;
case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
parser->global.usage_page = item_udata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
parser->global.logical_minimum = item_sdata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
if (parser->global.logical_minimum < 0)
parser->global.logical_maximum = item_sdata(item);
else
parser->global.logical_maximum = item_udata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
parser->global.physical_minimum = item_sdata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
if (parser->global.physical_minimum < 0)
parser->global.physical_maximum = item_sdata(item);
else
parser->global.physical_maximum = item_udata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
/* Many devices provide unit exponent as a two's complement
* nibble due to the common misunderstanding of HID
* specification 1.11, 6.2.2.7 Global Items. Attempt to handle
* both this and the standard encoding. */
raw_value = item_sdata(item);
if (!(raw_value & 0xfffffff0))
parser->global.unit_exponent = hid_snto32(raw_value, 4);
else
parser->global.unit_exponent = raw_value;
return 0;
case HID_GLOBAL_ITEM_TAG_UNIT:
parser->global.unit = item_udata(item);
return 0;
case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
parser->global.report_size = item_udata(item);
if (parser->global.report_size > 256) {
hid_err(parser->device, "invalid report_size %d\n",
parser->global.report_size);
return -1;
}
return 0;
case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
parser->global.report_count = item_udata(item);
if (parser->global.report_count > HID_MAX_USAGES) {
hid_err(parser->device, "invalid report_count %d\n",
parser->global.report_count);
return -1;
}
return 0;
case HID_GLOBAL_ITEM_TAG_REPORT_ID:
parser->global.report_id = item_udata(item);
if (parser->global.report_id == 0 ||
parser->global.report_id >= HID_MAX_IDS) {
hid_err(parser->device, "report_id %u is invalid\n",
parser->global.report_id);
return -1;
}
return 0;
default:
hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
return -1;
}
}
/*
* Process a local item.
*/
static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
{
__u32 data;
unsigned n;
__u32 count;
data = item_udata(item);
switch (item->tag) {
case HID_LOCAL_ITEM_TAG_DELIMITER:
if (data) {
/*
* We treat items before the first delimiter
* as global to all usage sets (branch 0).
* In the moment we process only these global
* items and the first delimiter set.
*/
if (parser->local.delimiter_depth != 0) {
hid_err(parser->device, "nested delimiters\n");
return -1;
}
parser->local.delimiter_depth++;
parser->local.delimiter_branch++;
} else {
if (parser->local.delimiter_depth < 1) {
hid_err(parser->device, "bogus close delimiter\n");
return -1;
}
parser->local.delimiter_depth--;
}
return 0;
case HID_LOCAL_ITEM_TAG_USAGE:
if (parser->local.delimiter_branch > 1) {
dbg_hid("alternative usage ignored\n");
return 0;
}
return hid_add_usage(parser, data, item->size);
case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
if (parser->local.delimiter_branch > 1) {
dbg_hid("alternative usage ignored\n");
return 0;
}
parser->local.usage_minimum = data;
return 0;
case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
if (parser->local.delimiter_branch > 1) {
dbg_hid("alternative usage ignored\n");
return 0;
}
count = data - parser->local.usage_minimum;
if (count + parser->local.usage_index >= HID_MAX_USAGES) {
/*
* We do not warn if the name is not set, we are
* actually pre-scanning the device.
*/
if (dev_name(&parser->device->dev))
hid_warn(parser->device,
"ignoring exceeding usage max\n");
data = HID_MAX_USAGES - parser->local.usage_index +
parser->local.usage_minimum - 1;
if (data <= 0) {
hid_err(parser->device,
"no more usage index available\n");
return -1;
}
}
for (n = parser->local.usage_minimum; n <= data; n++)
if (hid_add_usage(parser, n, item->size)) {
dbg_hid("hid_add_usage failed\n");
return -1;
}
return 0;
default:
dbg_hid("unknown local item tag 0x%x\n", item->tag);
return 0;
}
return 0;
}
/*
* Concatenate Usage Pages into Usages where relevant:
* As per specification, 6.2.2.8: "When the parser encounters a main item it
* concatenates the last declared Usage Page with a Usage to form a complete
* usage value."
*/
static void hid_concatenate_last_usage_page(struct hid_parser *parser)
{
int i;
unsigned int usage_page;
unsigned int current_page;
if (!parser->local.usage_index)
return;
usage_page = parser->global.usage_page;
/*
* Concatenate usage page again only if last declared Usage Page
* has not been already used in previous usages concatenation
*/
for (i = parser->local.usage_index - 1; i >= 0; i--) {
if (parser->local.usage_size[i] > 2)
/* Ignore extended usages */
continue;
current_page = parser->local.usage[i] >> 16;
if (current_page == usage_page)
break;
complete_usage(parser, i);
}
}
/*
* Process a main item.
*/
static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
{
__u32 data;
int ret;
hid_concatenate_last_usage_page(parser);
data = item_udata(item);
switch (item->tag) {
case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
ret = open_collection(parser, data & 0xff);
break;
case HID_MAIN_ITEM_TAG_END_COLLECTION:
ret = close_collection(parser);
break;
case HID_MAIN_ITEM_TAG_INPUT:
ret = hid_add_field(parser, HID_INPUT_REPORT, data);
break;
case HID_MAIN_ITEM_TAG_OUTPUT:
ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
break;
case HID_MAIN_ITEM_TAG_FEATURE:
ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
break;
default:
hid_warn(parser->device, "unknown main item tag 0x%x\n", item->tag);
ret = 0;
}
memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
return ret;
}
/*
* Process a reserved item.
*/
static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
{
dbg_hid("reserved item type, tag 0x%x\n", item->tag);
return 0;
}
/*
* Free a report and all registered fields. The field->usage and
* field->value table's are allocated behind the field, so we need
* only to free(field) itself.
*/
static void hid_free_report(struct hid_report *report)
{
unsigned n;
kfree(report->field_entries);
for (n = 0; n < report->maxfield; n++)
kfree(report->field[n]);
kfree(report);
}
/*
* Close report. This function returns the device
* state to the point prior to hid_open_report().
*/
static void hid_close_report(struct hid_device *device)
{
unsigned i, j;
for (i = 0; i < HID_REPORT_TYPES; i++) {
struct hid_report_enum *report_enum = device->report_enum + i;
for (j = 0; j < HID_MAX_IDS; j++) {
struct hid_report *report = report_enum->report_id_hash[j];
if (report)
hid_free_report(report);
}
memset(report_enum, 0, sizeof(*report_enum));
INIT_LIST_HEAD(&report_enum->report_list);
}
kfree(device->rdesc);
device->rdesc = NULL;
device->rsize = 0;
kfree(device->collection);
device->collection = NULL;
device->collection_size = 0;
device->maxcollection = 0;
device->maxapplication = 0;
device->status &= ~HID_STAT_PARSED;
}
/*
* Free a device structure, all reports, and all fields.
*/
static void hid_device_release(struct device *dev)
{
struct hid_device *hid = to_hid_device(dev);
hid_close_report(hid);
kfree(hid->dev_rdesc);
kfree(hid);
}
/*
* Fetch a report description item from the data stream. We support long
* items, though they are not used yet.
*/
static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
{
u8 b;
if ((end - start) <= 0)
return NULL;
b = *start++;
item->type = (b >> 2) & 3;
item->tag = (b >> 4) & 15;
if (item->tag == HID_ITEM_TAG_LONG) {
item->format = HID_ITEM_FORMAT_LONG;
if ((end - start) < 2)
return NULL;
item->size = *start++;
item->tag = *start++;
if ((end - start) < item->size)
return NULL;
item->data.longdata = start;
start += item->size;
return start;
}
item->format = HID_ITEM_FORMAT_SHORT;
item->size = b & 3;
switch (item->size) {
case 0:
return start;
case 1:
if ((end - start) < 1)
return NULL;
item->data.u8 = *start++;
return start;
case 2:
if ((end - start) < 2)
return NULL;
item->data.u16 = get_unaligned_le16(start);
start = (__u8 *)((__le16 *)start + 1);
return start;
case 3:
item->size++;
if ((end - start) < 4)
return NULL;
item->data.u32 = get_unaligned_le32(start);
start = (__u8 *)((__le32 *)start + 1);
return start;
}
return NULL;
}
static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
{
struct hid_device *hid = parser->device;
if (usage == HID_DG_CONTACTID)
hid->group = HID_GROUP_MULTITOUCH;
}
static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
{
if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
parser->global.report_size == 8)
parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
if (usage == 0xff0000c6 && parser->global.report_count == 1 &&
parser->global.report_size == 8)
parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
}
static void hid_scan_collection(struct hid_parser *parser, unsigned type)
{
struct hid_device *hid = parser->device;
int i;
if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
(type == HID_COLLECTION_PHYSICAL ||
type == HID_COLLECTION_APPLICATION))
hid->group = HID_GROUP_SENSOR_HUB;
if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
hid->product == USB_DEVICE_ID_MS_POWER_COVER &&
hid->group == HID_GROUP_MULTITOUCH)
hid->group = HID_GROUP_GENERIC;
if ((parser->global.usage_page << 16) == HID_UP_GENDESK)
for (i = 0; i < parser->local.usage_index; i++)
if (parser->local.usage[i] == HID_GD_POINTER)
parser->scan_flags |= HID_SCAN_FLAG_GD_POINTER;
if ((parser->global.usage_page << 16) >= HID_UP_MSVENDOR)
parser->scan_flags |= HID_SCAN_FLAG_VENDOR_SPECIFIC;
if ((parser->global.usage_page << 16) == HID_UP_GOOGLEVENDOR)
for (i = 0; i < parser->local.usage_index; i++)
if (parser->local.usage[i] ==
(HID_UP_GOOGLEVENDOR | 0x0001))
parser->device->group =
HID_GROUP_VIVALDI;
}
static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
{
__u32 data;
int i;
hid_concatenate_last_usage_page(parser);
data = item_udata(item);
switch (item->tag) {
case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
hid_scan_collection(parser, data & 0xff);
break;
case HID_MAIN_ITEM_TAG_END_COLLECTION:
break;
case HID_MAIN_ITEM_TAG_INPUT:
/* ignore constant inputs, they will be ignored by hid-input */
if (data & HID_MAIN_ITEM_CONSTANT)
break;
for (i = 0; i < parser->local.usage_index; i++)
hid_scan_input_usage(parser, parser->local.usage[i]);
break;
case HID_MAIN_ITEM_TAG_OUTPUT:
break;
case HID_MAIN_ITEM_TAG_FEATURE:
for (i = 0; i < parser->local.usage_index; i++)
hid_scan_feature_usage(parser, parser->local.usage[i]);
break;
}
/* Reset the local parser environment */
memset(&parser->local, 0, sizeof(parser->local));
return 0;
}
/*
* Scan a report descriptor before the device is added to the bus.
* Sets device groups and other properties that determine what driver
* to load.
*/
static int hid_scan_report(struct hid_device *hid)
{
struct hid_parser *parser;
struct hid_item item;
__u8 *start = hid->dev_rdesc;
__u8 *end = start + hid->dev_rsize;
static int (*dispatch_type[])(struct hid_parser *parser,
struct hid_item *item) = {
hid_scan_main,
hid_parser_global,
hid_parser_local,
hid_parser_reserved
};
parser = vzalloc(sizeof(struct hid_parser));
if (!parser)
return -ENOMEM;
parser->device = hid;
hid->group = HID_GROUP_GENERIC;
/*
* The parsing is simpler than the one in hid_open_report() as we should
* be robust against hid errors. Those errors will be raised by
* hid_open_report() anyway.
*/
while ((start = fetch_item(start, end, &item)) != NULL)
dispatch_type[item.type](parser, &item);
/*
* Handle special flags set during scanning.
*/
if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
(hid->group == HID_GROUP_MULTITOUCH))
hid->group = HID_GROUP_MULTITOUCH_WIN_8;
/*
* Vendor specific handlings
*/
switch (hid->vendor) {
case USB_VENDOR_ID_WACOM:
hid->group = HID_GROUP_WACOM;
break;
case USB_VENDOR_ID_SYNAPTICS:
if (hid->group == HID_GROUP_GENERIC)
if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC)
&& (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER))
/*
* hid-rmi should take care of them,
* not hid-generic
*/
hid->group = HID_GROUP_RMI;
break;
}
kfree(parser->collection_stack);
vfree(parser);
return 0;
}
/**
* hid_parse_report - parse device report
*
* @hid: hid device
* @start: report start
* @size: report size
*
* Allocate the device report as read by the bus driver. This function should
* only be called from parse() in ll drivers.
*/
int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
{
hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
if (!hid->dev_rdesc)
return -ENOMEM;
hid->dev_rsize = size;
return 0;
}
EXPORT_SYMBOL_GPL(hid_parse_report);
static const char * const hid_report_names[] = {
"HID_INPUT_REPORT",
"HID_OUTPUT_REPORT",
"HID_FEATURE_REPORT",
};
/**
* hid_validate_values - validate existing device report's value indexes
*
* @hid: hid device
* @type: which report type to examine
* @id: which report ID to examine (0 for first)
* @field_index: which report field to examine
* @report_counts: expected number of values
*
* Validate the number of values in a given field of a given report, after
* parsing.
*/
struct hid_report *hid_validate_values(struct hid_device *hid,
enum hid_report_type type, unsigned int id,
unsigned int field_index,
unsigned int report_counts)
{
struct hid_report *report;
if (type > HID_FEATURE_REPORT) {
hid_err(hid, "invalid HID report type %u\n", type);
return NULL;
}
if (id >= HID_MAX_IDS) {
hid_err(hid, "invalid HID report id %u\n", id);
return NULL;
}
/*
* Explicitly not using hid_get_report() here since it depends on
* ->numbered being checked, which may not always be the case when
* drivers go to access report values.
*/
if (id == 0) {
/*
* Validating on id 0 means we should examine the first
* report in the list.
*/
report = list_first_entry_or_null(
&hid->report_enum[type].report_list,
struct hid_report, list);
} else {
report = hid->report_enum[type].report_id_hash[id];
}
if (!report) {
hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
return NULL;
}
if (report->maxfield <= field_index) {
hid_err(hid, "not enough fields in %s %u\n",
hid_report_names[type], id);
return NULL;
}
if (report->field[field_index]->report_count < report_counts) {
hid_err(hid, "not enough values in %s %u field %u\n",
hid_report_names[type], id, field_index);
return NULL;
}
return report;
}
EXPORT_SYMBOL_GPL(hid_validate_values);
static int hid_calculate_multiplier(struct hid_device *hid,
struct hid_field *multiplier)
{
int m;
__s32 v = *multiplier->value;
__s32 lmin = multiplier->logical_minimum;
__s32 lmax = multiplier->logical_maximum;
__s32 pmin = multiplier->physical_minimum;
__s32 pmax = multiplier->physical_maximum;
/*
* "Because OS implementations will generally divide the control's
* reported count by the Effective Resolution Multiplier, designers
* should take care not to establish a potential Effective
* Resolution Multiplier of zero."
* HID Usage Table, v1.12, Section 4.3.1, p31
*/
if (lmax - lmin == 0)
return 1;
/*
* Handling the unit exponent is left as an exercise to whoever
* finds a device where that exponent is not 0.
*/
m = ((v - lmin)/(lmax - lmin) * (pmax - pmin) + pmin);
if (unlikely(multiplier->unit_exponent != 0)) {
hid_warn(hid,
"unsupported Resolution Multiplier unit exponent %d\n",
multiplier->unit_exponent);
}
/* There are no devices with an effective multiplier > 255 */
if (unlikely(m == 0 || m > 255 || m < -255)) {
hid_warn(hid, "unsupported Resolution Multiplier %d\n", m);
m = 1;
}
return m;
}
static void hid_apply_multiplier_to_field(struct hid_device *hid,
struct hid_field *field,
struct hid_collection *multiplier_collection,
int effective_multiplier)
{
struct hid_collection *collection;
struct hid_usage *usage;
int i;
/*
* If multiplier_collection is NULL, the multiplier applies
* to all fields in the report.
* Otherwise, it is the Logical Collection the multiplier applies to
* but our field may be in a subcollection of that collection.
*/
for (i = 0; i < field->maxusage; i++) {
usage = &field->usage[i];
collection = &hid->collection[usage->collection_index];
while (collection->parent_idx != -1 &&
collection != multiplier_collection)
collection = &hid->collection[collection->parent_idx];
if (collection->parent_idx != -1 ||
multiplier_collection == NULL)
usage->resolution_multiplier = effective_multiplier;
}
}
static void hid_apply_multiplier(struct hid_device *hid,
struct hid_field *multiplier)
{
struct hid_report_enum *rep_enum;
struct hid_report *rep;
struct hid_field *field;
struct hid_collection *multiplier_collection;
int effective_multiplier;
int i;
/*
* "The Resolution Multiplier control must be contained in the same
* Logical Collection as the control(s) to which it is to be applied.
* If no Resolution Multiplier is defined, then the Resolution
* Multiplier defaults to 1. If more than one control exists in a
* Logical Collection, the Resolution Multiplier is associated with
* all controls in the collection. If no Logical Collection is
* defined, the Resolution Multiplier is associated with all
* controls in the report."
* HID Usage Table, v1.12, Section 4.3.1, p30
*
* Thus, search from the current collection upwards until we find a
* logical collection. Then search all fields for that same parent
* collection. Those are the fields the multiplier applies to.
*
* If we have more than one multiplier, it will overwrite the
* applicable fields later.
*/
multiplier_collection = &hid->collection[multiplier->usage->collection_index];
while (multiplier_collection->parent_idx != -1 &&
multiplier_collection->type != HID_COLLECTION_LOGICAL)
multiplier_collection = &hid->collection[multiplier_collection->parent_idx];
effective_multiplier = hid_calculate_multiplier(hid, multiplier);
rep_enum = &hid->report_enum[HID_INPUT_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list) {
for (i = 0; i < rep->maxfield; i++) {
field = rep->field[i];
hid_apply_multiplier_to_field(hid, field,
multiplier_collection,
effective_multiplier);
}
}
}
/*
* hid_setup_resolution_multiplier - set up all resolution multipliers
*
* @device: hid device
*
* Search for all Resolution Multiplier Feature Reports and apply their
* value to all matching Input items. This only updates the internal struct
* fields.
*
* The Resolution Multiplier is applied by the hardware. If the multiplier
* is anything other than 1, the hardware will send pre-multiplied events
* so that the same physical interaction generates an accumulated
* accumulated_value = value * * multiplier
* This may be achieved by sending
* - "value * multiplier" for each event, or
* - "value" but "multiplier" times as frequently, or
* - a combination of the above
* The only guarantee is that the same physical interaction always generates
* an accumulated 'value * multiplier'.
*
* This function must be called before any event processing and after
* any SetRequest to the Resolution Multiplier.
*/
void hid_setup_resolution_multiplier(struct hid_device *hid)
{
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];
if (usage->hid == HID_GD_RESOLUTION_MULTIPLIER)
hid_apply_multiplier(hid,
rep->field[i]);
}
}
}
}
EXPORT_SYMBOL_GPL(hid_setup_resolution_multiplier);
/**
* hid_open_report - open a driver-specific device report
*
* @device: hid device
*
* Parse a report description into a hid_device structure. Reports are
* enumerated, fields are attached to these reports.
* 0 returned on success, otherwise nonzero error value.
*
* This function (or the equivalent hid_parse() macro) should only be
* called from probe() in drivers, before starting the device.
*/
int hid_open_report(struct hid_device *device)
{
struct hid_parser *parser;
struct hid_item item;
unsigned int size;
__u8 *start;
__u8 *buf;
__u8 *end;
__u8 *next;
int ret;
int i;
static int (*dispatch_type[])(struct hid_parser *parser,
struct hid_item *item) = {
hid_parser_main,
hid_parser_global,
hid_parser_local,
hid_parser_reserved
};
if (WARN_ON(device->status & HID_STAT_PARSED))
return -EBUSY;
start = device->dev_rdesc;
if (WARN_ON(!start))
return -ENODEV;
size = device->dev_rsize;
/* call_hid_bpf_rdesc_fixup() ensures we work on a copy of rdesc */
buf = call_hid_bpf_rdesc_fixup(device, start, &size);
if (buf == NULL)
return -ENOMEM;
if (device->driver->report_fixup)
start = device->driver->report_fixup(device, buf, &size);
else
start = buf;
start = kmemdup(start, size, GFP_KERNEL);
kfree(buf);
if (start == NULL)
return -ENOMEM;
device->rdesc = start;
device->rsize = size;
parser = vzalloc(sizeof(struct hid_parser));
if (!parser) {
ret = -ENOMEM;
goto alloc_err;
}
parser->device = device;
end = start + size;
device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
sizeof(struct hid_collection), GFP_KERNEL);
if (!device->collection) {
ret = -ENOMEM;
goto err;
}
device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
for (i = 0; i < HID_DEFAULT_NUM_COLLECTIONS; i++)
device->collection[i].parent_idx = -1;
ret = -EINVAL;
while ((next = fetch_item(start, end, &item)) != NULL) {
start = next;
if (item.format != HID_ITEM_FORMAT_SHORT) {
hid_err(device, "unexpected long global item\n");
goto err;
}
if (dispatch_type[item.type](parser, &item)) {
hid_err(device, "item %u %u %u %u parsing failed\n",
item.format, (unsigned)item.size,
(unsigned)item.type, (unsigned)item.tag);
goto err;
}
if (start == end) {
if (parser->collection_stack_ptr) {
hid_err(device, "unbalanced collection at end of report description\n");
goto err;
}
if (parser->local.delimiter_depth) {
hid_err(device, "unbalanced delimiter at end of report description\n");
goto err;
}
/*
* fetch initial values in case the device's
* default multiplier isn't the recommended 1
*/
hid_setup_resolution_multiplier(device);
kfree(parser->collection_stack);
vfree(parser);
device->status |= HID_STAT_PARSED;
return 0;
}
}
hid_err(device, "item fetching failed at offset %u/%u\n",
size - (unsigned int)(end - start), size);
err:
kfree(parser->collection_stack);
alloc_err:
vfree(parser);
hid_close_report(device);
return ret;
}
EXPORT_SYMBOL_GPL(hid_open_report);
/*
* Convert a signed n-bit integer to signed 32-bit integer. Common
* cases are done through the compiler, the screwed things has to be
* done by hand.
*/
static s32 snto32(__u32 value, unsigned n)
{
if (!value || !n)
return 0;
if (n > 32)
n = 32;
switch (n) {
case 8: return ((__s8)value);
case 16: return ((__s16)value);
case 32: return ((__s32)value);
}
return value & (1 << (n - 1)) ? value | (~0U << n) : value;
}
s32 hid_snto32(__u32 value, unsigned n)
{
return snto32(value, n);
}
EXPORT_SYMBOL_GPL(hid_snto32);
/*
* Convert a signed 32-bit integer to a signed n-bit integer.
*/
static u32 s32ton(__s32 value, unsigned n)
{
s32 a = value >> (n - 1);
if (a && a != -1)
return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
return value & ((1 << n) - 1);
}
/*
* Extract/implement a data field from/to a little endian report (bit array).
*
* Code sort-of follows HID spec:
* http://www.usb.org/developers/hidpage/HID1_11.pdf
*
* While the USB HID spec allows unlimited length bit fields in "report
* descriptors", most devices never use more than 16 bits.
* One model of UPS is claimed to report "LINEV" as a 32-bit field.
* Search linux-kernel and linux-usb-devel archives for "hid-core extract".
*/
static u32 __extract(u8 *report, unsigned offset, int n)
{
unsigned int idx = offset / 8;
unsigned int bit_nr = 0;
unsigned int bit_shift = offset % 8;
int bits_to_copy = 8 - bit_shift;
u32 value = 0;
u32 mask = n < 32 ? (1U << n) - 1 : ~0U;
while (n > 0) {
value |= ((u32)report[idx] >> bit_shift) << bit_nr;
n -= bits_to_copy;
bit_nr += bits_to_copy;
bits_to_copy = 8;
bit_shift = 0;
idx++;
}
return value & mask;
}
u32 hid_field_extract(const struct hid_device *hid, u8 *report,
unsigned offset, unsigned n)
{
if (n > 32) {
hid_warn_once(hid, "%s() called with n (%d) > 32! (%s)\n",
__func__, n, current->comm);
n = 32;
}
return __extract(report, offset, n);
}
EXPORT_SYMBOL_GPL(hid_field_extract);
/*
* "implement" : set bits in a little endian bit stream.
* Same concepts as "extract" (see comments above).
* The data mangled in the bit stream remains in little endian
* order the whole time. It make more sense to talk about
* endianness of register values by considering a register
* a "cached" copy of the little endian bit stream.
*/
static void __implement(u8 *report, unsigned offset, int n, u32 value)
{
unsigned int idx = offset / 8;
unsigned int bit_shift = offset % 8;
int bits_to_set = 8 - bit_shift;
while (n - bits_to_set >= 0) {
report[idx] &= ~(0xff << bit_shift);
report[idx] |= value << bit_shift;
value >>= bits_to_set;
n -= bits_to_set;
bits_to_set = 8;
bit_shift = 0;
idx++;
}
/* last nibble */
if (n) {
u8 bit_mask = ((1U << n) - 1);
report[idx] &= ~(bit_mask << bit_shift);
report[idx] |= value << bit_shift;
}
}
static void implement(const struct hid_device *hid, u8 *report,
unsigned offset, unsigned n, u32 value)
{
if (unlikely(n > 32)) {
hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
__func__, n, current->comm);
n = 32;
} else if (n < 32) {
u32 m = (1U << n) - 1;
if (unlikely(value > m)) {
hid_warn(hid,
"%s() called with too large value %d (n: %d)! (%s)\n",
__func__, value, n, current->comm);
WARN_ON(1);
value &= m;
}
}
__implement(report, offset, n, value);
}
/*
* Search an array for a value.
*/
static int search(__s32 *array, __s32 value, unsigned n)
{
while (n--) {
if (*array++ == value)
return 0;
}
return -1;
}
/**
* hid_match_report - check if driver's raw_event should be called
*
* @hid: hid device
* @report: hid report to match against
*
* compare hid->driver->report_table->report_type to report->type
*/
static int hid_match_report(struct hid_device *hid, struct hid_report *report)
{
const struct hid_report_id *id = hid->driver->report_table;
if (!id) /* NULL means all */
return 1;
for (; id->report_type != HID_TERMINATOR; id++)
if (id->report_type == HID_ANY_ID ||
id->report_type == report->type)
return 1;
return 0;
}
/**
* hid_match_usage - check if driver's event should be called
*
* @hid: hid device
* @usage: usage to match against
*
* compare hid->driver->usage_table->usage_{type,code} to
* usage->usage_{type,code}
*/
static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
{
const struct hid_usage_id *id = hid->driver->usage_table;
if (!id) /* NULL means all */
return 1;
for (; id->usage_type != HID_ANY_ID - 1; id++)
if ((id->usage_hid == HID_ANY_ID ||
id->usage_hid == usage->hid) &&
(id->usage_type == HID_ANY_ID ||
id->usage_type == usage->type) &&
(id->usage_code == HID_ANY_ID ||
id->usage_code == usage->code))
return 1;
return 0;
}
static void hid_process_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value, int interrupt)
{
struct hid_driver *hdrv = hid->driver;
int ret;
if (!list_empty(&hid->debug_list))
hid_dump_input(hid, usage, value);
if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
ret = hdrv->event(hid, field, usage, value);
if (ret != 0) {
if (ret < 0)
hid_err(hid, "%s's event failed with %d\n",
hdrv->name, ret);
return;
}
}
if (hid->claimed & HID_CLAIMED_INPUT)
hidinput_hid_event(hid, field, usage, value);
if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
hid->hiddev_hid_event(hid, field, usage, value);
}
/*
* Checks if the given value is valid within this field
*/
static inline int hid_array_value_is_valid(struct hid_field *field,
__s32 value)
{
__s32 min = field->logical_minimum;
/*
* Value needs to be between logical min and max, and
* (value - min) is used as an index in the usage array.
* This array is of size field->maxusage
*/
return value >= min &&
value <= field->logical_maximum &&
value - min < field->maxusage;
}
/*
* Fetch the field from the data. The field content is stored for next
* report processing (we do differential reporting to the layer).
*/
static void hid_input_fetch_field(struct hid_device *hid,
struct hid_field *field,
__u8 *data)
{
unsigned n;
unsigned count = field->report_count;
unsigned offset = field->report_offset;
unsigned size = field->report_size;
__s32 min = field->logical_minimum;
__s32 *value;
value = field->new_value;
memset(value, 0, count * sizeof(__s32));
field->ignored = false;
for (n = 0; n < count; n++) {
value[n] = min < 0 ?
snto32(hid_field_extract(hid, data, offset + n * size,
size), size) :
hid_field_extract(hid, data, offset + n * size, size);
/* Ignore report if ErrorRollOver */
if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
hid_array_value_is_valid(field, value[n]) &&
field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) {
field->ignored = true;
return;
}
}
}
/*
* Process a received variable field.
*/
static void hid_input_var_field(struct hid_device *hid,
struct hid_field *field,
int interrupt)
{
unsigned int count = field->report_count;
__s32 *value = field->new_value;
unsigned int n;
for (n = 0; n < count; n++)
hid_process_event(hid,
field,
&field->usage[n],
value[n],
interrupt);
memcpy(field->value, value, count * sizeof(__s32));
}
/*
* Process a received array field. The field content is stored for
* next report processing (we do differential reporting to the layer).
*/
static void hid_input_array_field(struct hid_device *hid,
struct hid_field *field,
int interrupt)
{
unsigned int n;
unsigned int count = field->report_count;
__s32 min = field->logical_minimum;
__s32 *value;
value = field->new_value;
/* ErrorRollOver */
if (field->ignored)
return;
for (n = 0; n < count; n++) {
if (hid_array_value_is_valid(field, field->value[n]) &&
search(value, field->value[n], count))
hid_process_event(hid,
field,
&field->usage[field->value[n] - min],
0,
interrupt);
if (hid_array_value_is_valid(field, value[n]) &&
search(field->value, value[n], count))
hid_process_event(hid,
field,
&field->usage[value[n] - min],
1,
interrupt);
}
memcpy(field->value, value, count * sizeof(__s32));
}
/*
* Analyse a received report, and fetch the data from it. The field
* content is stored for next report processing (we do differential
* reporting to the layer).
*/
static void hid_process_report(struct hid_device *hid,
struct hid_report *report,
__u8 *data,
int interrupt)
{
unsigned int a;
struct hid_field_entry *entry;
struct hid_field *field;
/* first retrieve all incoming values in data */
for (a = 0; a < report->maxfield; a++)
hid_input_fetch_field(hid, report->field[a], data);
if (!list_empty(&report->field_entry_list)) {
/* INPUT_REPORT, we have a priority list of fields */
list_for_each_entry(entry,
&report->field_entry_list,
list) {
field = entry->field;
if (field->flags & HID_MAIN_ITEM_VARIABLE)
hid_process_event(hid,
field,
&field->usage[entry->index],
field->new_value[entry->index],
interrupt);
else
hid_input_array_field(hid, field, interrupt);
}
/* we need to do the memcpy at the end for var items */
for (a = 0; a < report->maxfield; a++) {
field = report->field[a];
if (field->flags & HID_MAIN_ITEM_VARIABLE)
memcpy(field->value, field->new_value,
field->report_count * sizeof(__s32));
}
} else {
/* FEATURE_REPORT, regular processing */
for (a = 0; a < report->maxfield; a++) {
field = report->field[a];
if (field->flags & HID_MAIN_ITEM_VARIABLE)
hid_input_var_field(hid, field, interrupt);
else
hid_input_array_field(hid, field, interrupt);
}
}
}
/*
* Insert a given usage_index in a field in the list
* of processed usages in the report.
*
* The elements of lower priority score are processed
* first.
*/
static void __hid_insert_field_entry(struct hid_device *hid,
struct hid_report *report,
struct hid_field_entry *entry,
struct hid_field *field,
unsigned int usage_index)
{
struct hid_field_entry *next;
entry->field = field;
entry->index = usage_index;
entry->priority = field->usages_priorities[usage_index];
/* insert the element at the correct position */
list_for_each_entry(next,
&report->field_entry_list,
list) {
/*
* the priority of our element is strictly higher
* than the next one, insert it before
*/
if (entry->priority > next->priority) {
list_add_tail(&entry->list, &next->list);
return;
}
}
/* lowest priority score: insert at the end */
list_add_tail(&entry->list, &report->field_entry_list);
}
static void hid_report_process_ordering(struct hid_device *hid,
struct hid_report *report)
{
struct hid_field *field;
struct hid_field_entry *entries;
unsigned int a, u, usages;
unsigned int count = 0;
/* count the number of individual fields in the report */
for (a = 0; a < report->maxfield; a++) {
field = report->field[a];
if (field->flags & HID_MAIN_ITEM_VARIABLE)
count += field->report_count;
else
count++;
}
/* allocate the memory to process the fields */
entries = kcalloc(count, sizeof(*entries), GFP_KERNEL);
if (!entries)
return;
report->field_entries = entries;
/*
* walk through all fields in the report and
* store them by priority order in report->field_entry_list
*
* - Var elements are individualized (field + usage_index)
* - Arrays are taken as one, we can not chose an order for them
*/
usages = 0;
for (a = 0; a < report->maxfield; a++) {
field = report->field[a];
if (field->flags & HID_MAIN_ITEM_VARIABLE) {
for (u = 0; u < field->report_count; u++) {
__hid_insert_field_entry(hid, report,
&entries[usages],
field, u);
usages++;
}
} else {
__hid_insert_field_entry(hid, report, &entries[usages],
field, 0);
usages++;
}
}
}
static void hid_process_ordering(struct hid_device *hid)
{
struct hid_report *report;
struct hid_report_enum *report_enum = &hid->report_enum[HID_INPUT_REPORT];
list_for_each_entry(report, &report_enum->report_list, list)
hid_report_process_ordering(hid, report);
}
/*
* Output the field into the report.
*/
static void hid_output_field(const struct hid_device *hid,
struct hid_field *field, __u8 *data)
{
unsigned count = field->report_count;
unsigned offset = field->report_offset;
unsigned size = field->report_size;
unsigned n;
for (n = 0; n < count; n++) {
if (field->logical_minimum < 0) /* signed values */
implement(hid, data, offset + n * size, size,
s32ton(field->value[n], size));
else /* unsigned values */
implement(hid, data, offset + n * size, size,
field->value[n]);
}
}
/*
* Compute the size of a report.
*/
static size_t hid_compute_report_size(struct hid_report *report)
{
if (report->size)
return ((report->size - 1) >> 3) + 1;
return 0;
}
/*
* Create a report. 'data' has to be allocated using
* hid_alloc_report_buf() so that it has proper size.
*/
void hid_output_report(struct hid_report *report, __u8 *data)
{
unsigned n;
if (report->id > 0)
*data++ = report->id;
memset(data, 0, hid_compute_report_size(report));
for (n = 0; n < report->maxfield; n++)
hid_output_field(report->device, report->field[n], data);
}
EXPORT_SYMBOL_GPL(hid_output_report);
/*
* Allocator for buffer that is going to be passed to hid_output_report()
*/
u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
{
/*
* 7 extra bytes are necessary to achieve proper functionality
* of implement() working on 8 byte chunks
*/
u32 len = hid_report_len(report) + 7;
return kmalloc(len, flags);
}
EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
/*
* Set a field value. The report this field belongs to has to be
* created and transferred to the device, to set this value in the
* device.
*/
int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
{
unsigned size;
if (!field)
return -1;
size = field->report_size;
hid_dump_input(field->report->device, field->usage + offset, value);
if (offset >= field->report_count) {
hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
offset, field->report_count);
return -1;
}
if (field->logical_minimum < 0) {
if (value != snto32(s32ton(value, size), size)) {
hid_err(field->report->device, "value %d is out of range\n", value);
return -1;
}
}
field->value[offset] = value;
return 0;
}
EXPORT_SYMBOL_GPL(hid_set_field);
static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
const u8 *data)
{
struct hid_report *report;
unsigned int n = 0; /* Normally report number is 0 */
/* Device uses numbered reports, data[0] is report number */
if (report_enum->numbered)
n = *data;
report = report_enum->report_id_hash[n];
if (report == NULL)
dbg_hid("undefined report_id %u received\n", n);
return report;
}
/*
* Implement a generic .request() callback, using .raw_request()
* DO NOT USE in hid drivers directly, but through hid_hw_request instead.
*/
int __hid_request(struct hid_device *hid, struct hid_report *report,
enum hid_class_request reqtype)
{
char *buf;
int ret;
u32 len;
buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!buf)
return -ENOMEM;
len = hid_report_len(report);
if (reqtype == HID_REQ_SET_REPORT)
hid_output_report(report, buf);
ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
report->type, reqtype);
if (ret < 0) {
dbg_hid("unable to complete request: %d\n", ret);
goto out;
}
if (reqtype == HID_REQ_GET_REPORT)
hid_input_report(hid, report->type, buf, ret, 0);
ret = 0;
out:
kfree(buf);
return ret;
}
EXPORT_SYMBOL_GPL(__hid_request);
int hid_report_raw_event(struct hid_device *hid, enum hid_report_type type, u8 *data, u32 size,
int interrupt)
{
struct hid_report_enum *report_enum = hid->report_enum + type;
struct hid_report *report;
struct hid_driver *hdrv;
int max_buffer_size = HID_MAX_BUFFER_SIZE;
u32 rsize, csize = size;
u8 *cdata = data;
int ret = 0;
report = hid_get_report(report_enum, data);
if (!report)
goto out;
if (report_enum->numbered) {
cdata++;
csize--;
}
rsize = hid_compute_report_size(report);
if (hid->ll_driver->max_buffer_size)
max_buffer_size = hid->ll_driver->max_buffer_size;
if (report_enum->numbered && rsize >= max_buffer_size)
rsize = max_buffer_size - 1;
else if (rsize > max_buffer_size)
rsize = max_buffer_size;
if (csize < rsize) {
dbg_hid("report %d is too short, (%d < %d)\n", report->id,
csize, rsize);
memset(cdata + csize, 0, rsize - csize);
}
if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
hid->hiddev_report_event(hid, report);
if (hid->claimed & HID_CLAIMED_HIDRAW) {
ret = hidraw_report_event(hid, data, size);
if (ret)
goto out;
}
if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
hid_process_report(hid, report, cdata, interrupt);
hdrv = hid->driver;
if (hdrv && hdrv->report)
hdrv->report(hid, report);
}
if (hid->claimed & HID_CLAIMED_INPUT)
hidinput_report_event(hid, report);
out:
return ret;
}
EXPORT_SYMBOL_GPL(hid_report_raw_event);
/**
* hid_input_report - report data from lower layer (usb, bt...)
*
* @hid: hid device
* @type: HID report type (HID_*_REPORT)
* @data: report contents
* @size: size of data parameter
* @interrupt: distinguish between interrupt and control transfers
*
* This is data entry for lower layers.
*/
int hid_input_report(struct hid_device *hid, enum hid_report_type type, u8 *data, u32 size,
int interrupt)
{
struct hid_report_enum *report_enum;
struct hid_driver *hdrv;
struct hid_report *report;
int ret = 0;
if (!hid)
return -ENODEV;
if (down_trylock(&hid->driver_input_lock))
return -EBUSY;
if (!hid->driver) {
ret = -ENODEV;
goto unlock;
}
report_enum = hid->report_enum + type;
hdrv = hid->driver;
data = dispatch_hid_bpf_device_event(hid, type, data, &size, interrupt);
if (IS_ERR(data)) {
ret = PTR_ERR(data);
goto unlock;
}
if (!size) {
dbg_hid("empty report\n");
ret = -1;
goto unlock;
}
/* Avoid unnecessary overhead if debugfs is disabled */
if (!list_empty(&hid->debug_list))
hid_dump_report(hid, type, data, size);
report = hid_get_report(report_enum, data);
if (!report) {
ret = -1;
goto unlock;
}
if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
ret = hdrv->raw_event(hid, report, data, size);
if (ret < 0)
goto unlock;
}
ret = hid_report_raw_event(hid, type, data, size, interrupt);
unlock:
up(&hid->driver_input_lock);
return ret;
}
EXPORT_SYMBOL_GPL(hid_input_report);
bool hid_match_one_id(const struct hid_device *hdev,
const struct hid_device_id *id)
{
return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
(id->group == HID_GROUP_ANY || id->group == hdev->group) &&
(id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
(id->product == HID_ANY_ID || id->product == hdev->product);
}
const struct hid_device_id *hid_match_id(const struct hid_device *hdev,
const struct hid_device_id *id)
{
for (; id->bus; id++)
if (hid_match_one_id(hdev, id))
return id;
return NULL;
}
EXPORT_SYMBOL_GPL(hid_match_id);
static const struct hid_device_id hid_hiddev_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
{ }
};
static bool hid_hiddev(struct hid_device *hdev)
{
return !!hid_match_id(hdev, hid_hiddev_list);
}
static ssize_t
read_report_descriptor(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = kobj_to_dev(kobj);
struct hid_device *hdev = to_hid_device(dev);
if (off >= hdev->rsize)
return 0;
if (off + count > hdev->rsize)
count = hdev->rsize - off;
memcpy(buf, hdev->rdesc + off, count);
return count;
}
static ssize_t
show_country(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
return sprintf(buf, "%02x\n", hdev->country & 0xff);
}
static struct bin_attribute dev_bin_attr_report_desc = {
.attr = { .name = "report_descriptor", .mode = 0444 },
.read = read_report_descriptor,
.size = HID_MAX_DESCRIPTOR_SIZE,
};
static const struct device_attribute dev_attr_country = {
.attr = { .name = "country", .mode = 0444 },
.show = show_country,
};
int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
{
static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
"Joystick", "Gamepad", "Keyboard", "Keypad",
"Multi-Axis Controller"
};
const char *type, *bus;
char buf[64] = "";
unsigned int i;
int len;
int ret;
ret = hid_bpf_connect_device(hdev);
if (ret)
return ret;
if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
if (hdev->bus != BUS_USB)
connect_mask &= ~HID_CONNECT_HIDDEV;
if (hid_hiddev(hdev))
connect_mask |= HID_CONNECT_HIDDEV_FORCE;
if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
connect_mask & HID_CONNECT_HIDINPUT_FORCE))
hdev->claimed |= HID_CLAIMED_INPUT;
if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
!hdev->hiddev_connect(hdev,
connect_mask & HID_CONNECT_HIDDEV_FORCE))
hdev->claimed |= HID_CLAIMED_HIDDEV;
if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
hdev->claimed |= HID_CLAIMED_HIDRAW;
if (connect_mask & HID_CONNECT_DRIVER)
hdev->claimed |= HID_CLAIMED_DRIVER;
/* Drivers with the ->raw_event callback set are not required to connect
* to any other listener. */
if (!hdev->claimed && !hdev->driver->raw_event) {
hid_err(hdev, "device has no listeners, quitting\n");
return -ENODEV;
}
hid_process_ordering(hdev);
if ((hdev->claimed & HID_CLAIMED_INPUT) &&
(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
hdev->ff_init(hdev);
len = 0;
if (hdev->claimed & HID_CLAIMED_INPUT)
len += sprintf(buf + len, "input");
if (hdev->claimed & HID_CLAIMED_HIDDEV)
len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
((struct hiddev *)hdev->hiddev)->minor);
if (hdev->claimed & HID_CLAIMED_HIDRAW)
len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
((struct hidraw *)hdev->hidraw)->minor);
type = "Device";
for (i = 0; i < hdev->maxcollection; i++) {
struct hid_collection *col = &hdev->collection[i];
if (col->type == HID_COLLECTION_APPLICATION &&
(col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
(col->usage & 0xffff) < ARRAY_SIZE(types)) {
type = types[col->usage & 0xffff];
break;
}
}
switch (hdev->bus) {
case BUS_USB:
bus = "USB";
break;
case BUS_BLUETOOTH:
bus = "BLUETOOTH";
break;
case BUS_I2C:
bus = "I2C";
break;
case BUS_VIRTUAL:
bus = "VIRTUAL";
break;
case BUS_INTEL_ISHTP:
case BUS_AMD_SFH:
bus = "SENSOR HUB";
break;
default:
bus = "<UNKNOWN>";
}
ret = device_create_file(&hdev->dev, &dev_attr_country);
if (ret)
hid_warn(hdev,
"can't create sysfs country code attribute err: %d\n", ret);
hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
buf, bus, hdev->version >> 8, hdev->version & 0xff,
type, hdev->name, hdev->phys);
return 0;
}
EXPORT_SYMBOL_GPL(hid_connect);
void hid_disconnect(struct hid_device *hdev)
{
device_remove_file(&hdev->dev, &dev_attr_country);
if (hdev->claimed & HID_CLAIMED_INPUT)
hidinput_disconnect(hdev);
if (hdev->claimed & HID_CLAIMED_HIDDEV)
hdev->hiddev_disconnect(hdev);
if (hdev->claimed & HID_CLAIMED_HIDRAW)
hidraw_disconnect(hdev);
hdev->claimed = 0;
hid_bpf_disconnect_device(hdev);
}
EXPORT_SYMBOL_GPL(hid_disconnect);
/**
* hid_hw_start - start underlying HW
* @hdev: hid device
* @connect_mask: which outputs to connect, see HID_CONNECT_*
*
* Call this in probe function *after* hid_parse. This will setup HW
* buffers and start the device (if not defeirred to device open).
* hid_hw_stop must be called if this was successful.
*/
int hid_hw_start(struct hid_device *hdev, unsigned int connect_mask)
{
int error;
error = hdev->ll_driver->start(hdev);
if (error)
return error;
if (connect_mask) {
error = hid_connect(hdev, connect_mask);
if (error) {
hdev->ll_driver->stop(hdev);
return error;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(hid_hw_start);
/**
* hid_hw_stop - stop underlying HW
* @hdev: hid device
*
* This is usually called from remove function or from probe when something
* failed and hid_hw_start was called already.
*/
void hid_hw_stop(struct hid_device *hdev)
{
hid_disconnect(hdev);
hdev->ll_driver->stop(hdev);
}
EXPORT_SYMBOL_GPL(hid_hw_stop);
/**
* hid_hw_open - signal underlying HW to start delivering events
* @hdev: hid device
*
* Tell underlying HW to start delivering events from the device.
* This function should be called sometime after successful call
* to hid_hw_start().
*/
int hid_hw_open(struct hid_device *hdev)
{
int ret;
ret = mutex_lock_killable(&hdev->ll_open_lock);
if (ret)
return ret;
if (!hdev->ll_open_count++) {
ret = hdev->ll_driver->open(hdev);
if (ret)
hdev->ll_open_count--;
}
mutex_unlock(&hdev->ll_open_lock);
return ret;
}
EXPORT_SYMBOL_GPL(hid_hw_open);
/**
* hid_hw_close - signal underlaying HW to stop delivering events
*
* @hdev: hid device
*
* This function indicates that we are not interested in the events
* from this device anymore. Delivery of events may or may not stop,
* depending on the number of users still outstanding.
*/
void hid_hw_close(struct hid_device *hdev)
{
mutex_lock(&hdev->ll_open_lock);
if (!--hdev->ll_open_count)
hdev->ll_driver->close(hdev);
mutex_unlock(&hdev->ll_open_lock);
}
EXPORT_SYMBOL_GPL(hid_hw_close);
/**
* hid_hw_request - send report request to device
*
* @hdev: hid device
* @report: report to send
* @reqtype: hid request type
*/
void hid_hw_request(struct hid_device *hdev,
struct hid_report *report, enum hid_class_request reqtype)
{
if (hdev->ll_driver->request)
return hdev->ll_driver->request(hdev, report, reqtype);
__hid_request(hdev, report, reqtype);
}
EXPORT_SYMBOL_GPL(hid_hw_request);
/**
* hid_hw_raw_request - send report request to device
*
* @hdev: hid device
* @reportnum: report ID
* @buf: in/out data to transfer
* @len: length of buf
* @rtype: HID report type
* @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
*
* Return: count of data transferred, negative if error
*
* Same behavior as hid_hw_request, but with raw buffers instead.
*/
int hid_hw_raw_request(struct hid_device *hdev,
unsigned char reportnum, __u8 *buf,
size_t len, enum hid_report_type rtype, enum hid_class_request reqtype)
{
unsigned int max_buffer_size = HID_MAX_BUFFER_SIZE;
if (hdev->ll_driver->max_buffer_size)
max_buffer_size = hdev->ll_driver->max_buffer_size;
if (len < 1 || len > max_buffer_size || !buf)
return -EINVAL;
return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
rtype, reqtype);
}
EXPORT_SYMBOL_GPL(hid_hw_raw_request);
/**
* hid_hw_output_report - send output report to device
*
* @hdev: hid device
* @buf: raw data to transfer
* @len: length of buf
*
* Return: count of data transferred, negative if error
*/
int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len)
{
unsigned int max_buffer_size = HID_MAX_BUFFER_SIZE;
if (hdev->ll_driver->max_buffer_size)
max_buffer_size = hdev->ll_driver->max_buffer_size;
if (len < 1 || len > max_buffer_size || !buf)
return -EINVAL;
if (hdev->ll_driver->output_report)
return hdev->ll_driver->output_report(hdev, buf, len);
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(hid_hw_output_report);
#ifdef CONFIG_PM
int hid_driver_suspend(struct hid_device *hdev, pm_message_t state)
{
if (hdev->driver && hdev->driver->suspend)
return hdev->driver->suspend(hdev, state);
return 0;
}
EXPORT_SYMBOL_GPL(hid_driver_suspend);
int hid_driver_reset_resume(struct hid_device *hdev)
{
if (hdev->driver && hdev->driver->reset_resume)
return hdev->driver->reset_resume(hdev);
return 0;
}
EXPORT_SYMBOL_GPL(hid_driver_reset_resume);
int hid_driver_resume(struct hid_device *hdev)
{
if (hdev->driver && hdev->driver->resume)
return hdev->driver->resume(hdev);
return 0;
}
EXPORT_SYMBOL_GPL(hid_driver_resume);
#endif /* CONFIG_PM */
struct hid_dynid {
struct list_head list;
struct hid_device_id id;
};
/**
* new_id_store - add a new HID device ID to this driver and re-probe devices
* @drv: target device driver
* @buf: buffer for scanning device ID data
* @count: input size
*
* Adds a new dynamic hid device ID to this driver,
* and causes the driver to probe for all devices again.
*/
static ssize_t new_id_store(struct device_driver *drv, const char *buf,
size_t count)
{
struct hid_driver *hdrv = to_hid_driver(drv);
struct hid_dynid *dynid;
__u32 bus, vendor, product;
unsigned long driver_data = 0;
int ret;
ret = sscanf(buf, "%x %x %x %lx",
&bus, &vendor, &product, &driver_data);
if (ret < 3)
return -EINVAL;
dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
if (!dynid)
return -ENOMEM;
dynid->id.bus = bus;
dynid->id.group = HID_GROUP_ANY;
dynid->id.vendor = vendor;
dynid->id.product = product;
dynid->id.driver_data = driver_data;
spin_lock(&hdrv->dyn_lock);
list_add_tail(&dynid->list, &hdrv->dyn_list);
spin_unlock(&hdrv->dyn_lock);
ret = driver_attach(&hdrv->driver);
return ret ? : count;
}
static DRIVER_ATTR_WO(new_id);
static struct attribute *hid_drv_attrs[] = {
&driver_attr_new_id.attr,
NULL,
};
ATTRIBUTE_GROUPS(hid_drv);
static void hid_free_dynids(struct hid_driver *hdrv)
{
struct hid_dynid *dynid, *n;
spin_lock(&hdrv->dyn_lock);
list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
list_del(&dynid->list);
kfree(dynid);
}
spin_unlock(&hdrv->dyn_lock);
}
const struct hid_device_id *hid_match_device(struct hid_device *hdev,
struct hid_driver *hdrv)
{
struct hid_dynid *dynid;
spin_lock(&hdrv->dyn_lock);
list_for_each_entry(dynid, &hdrv->dyn_list, list) {
if (hid_match_one_id(hdev, &dynid->id)) {
spin_unlock(&hdrv->dyn_lock);
return &dynid->id;
}
}
spin_unlock(&hdrv->dyn_lock);
return hid_match_id(hdev, hdrv->id_table);
}
EXPORT_SYMBOL_GPL(hid_match_device);
static int hid_bus_match(struct device *dev, struct device_driver *drv)
{
struct hid_driver *hdrv = to_hid_driver(drv);
struct hid_device *hdev = to_hid_device(dev);
return hid_match_device(hdev, hdrv) != NULL;
}
/**
* hid_compare_device_paths - check if both devices share the same path
* @hdev_a: hid device
* @hdev_b: hid device
* @separator: char to use as separator
*
* Check if two devices share the same path up to the last occurrence of
* the separator char. Both paths must exist (i.e., zero-length paths
* don't match).
*/
bool hid_compare_device_paths(struct hid_device *hdev_a,
struct hid_device *hdev_b, char separator)
{
int n1 = strrchr(hdev_a->phys, separator) - hdev_a->phys;
int n2 = strrchr(hdev_b->phys, separator) - hdev_b->phys;
if (n1 != n2 || n1 <= 0 || n2 <= 0)
return false;
return !strncmp(hdev_a->phys, hdev_b->phys, n1);
}
EXPORT_SYMBOL_GPL(hid_compare_device_paths);
static bool hid_check_device_match(struct hid_device *hdev,
struct hid_driver *hdrv,
const struct hid_device_id **id)
{
*id = hid_match_device(hdev, hdrv);
if (!*id)
return false;
if (hdrv->match)
return hdrv->match(hdev, hid_ignore_special_drivers);
/*
* hid-generic implements .match(), so we must be dealing with a
* different HID driver here, and can simply check if
* hid_ignore_special_drivers is set or not.
*/
return !hid_ignore_special_drivers;
}
static int __hid_device_probe(struct hid_device *hdev, struct hid_driver *hdrv)
{
const struct hid_device_id *id;
int ret;
if (!hid_check_device_match(hdev, hdrv, &id))
return -ENODEV;
hdev->devres_group_id = devres_open_group(&hdev->dev, NULL, GFP_KERNEL);
if (!hdev->devres_group_id)
return -ENOMEM;
/* reset the quirks that has been previously set */
hdev->quirks = hid_lookup_quirk(hdev);
hdev->driver = hdrv;
if (hdrv->probe) {
ret = hdrv->probe(hdev, id);
} else { /* default probe */
ret = hid_open_report(hdev);
if (!ret)
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
/*
* Note that we are not closing the devres group opened above so
* even resources that were attached to the device after probe is
* run are released when hid_device_remove() is executed. This is
* needed as some drivers would allocate additional resources,
* for example when updating firmware.
*/
if (ret) {
devres_release_group(&hdev->dev, hdev->devres_group_id);
hid_close_report(hdev);
hdev->driver = NULL;
}
return ret;
}
static int hid_device_probe(struct device *dev)
{
struct hid_device *hdev = to_hid_device(dev);
struct hid_driver *hdrv = to_hid_driver(dev->driver);
int ret = 0;
if (down_interruptible(&hdev->driver_input_lock))
return -EINTR;
hdev->io_started = false;
clear_bit(ffs(HID_STAT_REPROBED), &hdev->status);
if (!hdev->driver)
ret = __hid_device_probe(hdev, hdrv);
if (!hdev->io_started)
up(&hdev->driver_input_lock);
return ret;
}
static void hid_device_remove(struct device *dev)
{
struct hid_device *hdev = to_hid_device(dev);
struct hid_driver *hdrv;
down(&hdev->driver_input_lock);
hdev->io_started = false;
hdrv = hdev->driver;
if (hdrv) {
if (hdrv->remove)
hdrv->remove(hdev);
else /* default remove */
hid_hw_stop(hdev);
/* Release all devres resources allocated by the driver */
devres_release_group(&hdev->dev, hdev->devres_group_id);
hid_close_report(hdev);
hdev->driver = NULL;
}
if (!hdev->io_started)
up(&hdev->driver_input_lock);
}
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
char *buf)
{
struct hid_device *hdev = container_of(dev, struct hid_device, dev);
return scnprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
hdev->bus, hdev->group, hdev->vendor, hdev->product);
}
static DEVICE_ATTR_RO(modalias);
static struct attribute *hid_dev_attrs[] = {
&dev_attr_modalias.attr,
NULL,
};
static struct bin_attribute *hid_dev_bin_attrs[] = {
&dev_bin_attr_report_desc,
NULL
};
static const struct attribute_group hid_dev_group = {
.attrs = hid_dev_attrs,
.bin_attrs = hid_dev_bin_attrs,
};
__ATTRIBUTE_GROUPS(hid_dev);
static int hid_uevent(const struct device *dev, struct kobj_uevent_env *env)
{
const struct hid_device *hdev = to_hid_device(dev);
if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
hdev->bus, hdev->vendor, hdev->product))
return -ENOMEM;
if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
return -ENOMEM;
if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
return -ENOMEM;
if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
return -ENOMEM;
if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
hdev->bus, hdev->group, hdev->vendor, hdev->product))
return -ENOMEM;
return 0;
}
struct bus_type hid_bus_type = {
.name = "hid",
.dev_groups = hid_dev_groups,
.drv_groups = hid_drv_groups,
.match = hid_bus_match,
.probe = hid_device_probe,
.remove = hid_device_remove,
.uevent = hid_uevent,
};
EXPORT_SYMBOL(hid_bus_type);
int hid_add_device(struct hid_device *hdev)
{
static atomic_t id = ATOMIC_INIT(0);
int ret;
if (WARN_ON(hdev->status & HID_STAT_ADDED))
return -EBUSY;
hdev->quirks = hid_lookup_quirk(hdev);
/* we need to kill them here, otherwise they will stay allocated to
* wait for coming driver */
if (hid_ignore(hdev))
return -ENODEV;
/*
* Check for the mandatory transport channel.
*/
if (!hdev->ll_driver->raw_request) {
hid_err(hdev, "transport driver missing .raw_request()\n");
return -EINVAL;
}
/*
* Read the device report descriptor once and use as template
* for the driver-specific modifications.
*/
ret = hdev->ll_driver->parse(hdev);
if (ret)
return ret;
if (!hdev->dev_rdesc)
return -ENODEV;
/*
* Scan generic devices for group information
*/
if (hid_ignore_special_drivers) {
hdev->group = HID_GROUP_GENERIC;
} else if (!hdev->group &&
!(hdev->quirks & HID_QUIRK_HAVE_SPECIAL_DRIVER)) {
ret = hid_scan_report(hdev);
if (ret)
hid_warn(hdev, "bad device descriptor (%d)\n", ret);
}
hdev->id = atomic_inc_return(&id);
/* XXX hack, any other cleaner solution after the driver core
* is converted to allow more than 20 bytes as the device name? */
dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
hdev->vendor, hdev->product, hdev->id);
hid_debug_register(hdev, dev_name(&hdev->dev));
ret = device_add(&hdev->dev);
if (!ret)
hdev->status |= HID_STAT_ADDED;
else
hid_debug_unregister(hdev);
return ret;
}
EXPORT_SYMBOL_GPL(hid_add_device);
/**
* hid_allocate_device - allocate new hid device descriptor
*
* Allocate and initialize hid device, so that hid_destroy_device might be
* used to free it.
*
* New hid_device pointer is returned on success, otherwise ERR_PTR encoded
* error value.
*/
struct hid_device *hid_allocate_device(void)
{
struct hid_device *hdev;
int ret = -ENOMEM;
hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
if (hdev == NULL)
return ERR_PTR(ret);
device_initialize(&hdev->dev);
hdev->dev.release = hid_device_release;
hdev->dev.bus = &hid_bus_type;
device_enable_async_suspend(&hdev->dev);
hid_close_report(hdev);
init_waitqueue_head(&hdev->debug_wait);
INIT_LIST_HEAD(&hdev->debug_list);
spin_lock_init(&hdev->debug_list_lock);
sema_init(&hdev->driver_input_lock, 1);
mutex_init(&hdev->ll_open_lock);
hid_bpf_device_init(hdev);
return hdev;
}
EXPORT_SYMBOL_GPL(hid_allocate_device);
static void hid_remove_device(struct hid_device *hdev)
{
if (hdev->status & HID_STAT_ADDED) {
device_del(&hdev->dev);
hid_debug_unregister(hdev);
hdev->status &= ~HID_STAT_ADDED;
}
kfree(hdev->dev_rdesc);
hdev->dev_rdesc = NULL;
hdev->dev_rsize = 0;
}
/**
* hid_destroy_device - free previously allocated device
*
* @hdev: hid device
*
* If you allocate hid_device through hid_allocate_device, you should ever
* free by this function.
*/
void hid_destroy_device(struct hid_device *hdev)
{
hid_bpf_destroy_device(hdev);
hid_remove_device(hdev);
put_device(&hdev->dev);
}
EXPORT_SYMBOL_GPL(hid_destroy_device);
static int __hid_bus_reprobe_drivers(struct device *dev, void *data)
{
struct hid_driver *hdrv = data;
struct hid_device *hdev = to_hid_device(dev);
if (hdev->driver == hdrv &&
!hdrv->match(hdev, hid_ignore_special_drivers) &&
!test_and_set_bit(ffs(HID_STAT_REPROBED), &hdev->status))
return device_reprobe(dev);
return 0;
}
static int __hid_bus_driver_added(struct device_driver *drv, void *data)
{
struct hid_driver *hdrv = to_hid_driver(drv);
if (hdrv->match) {
bus_for_each_dev(&hid_bus_type, NULL, hdrv,
__hid_bus_reprobe_drivers);
}
return 0;
}
static int __bus_removed_driver(struct device_driver *drv, void *data)
{
return bus_rescan_devices(&hid_bus_type);
}
int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
const char *mod_name)
{
int ret;
hdrv->driver.name = hdrv->name;
hdrv->driver.bus = &hid_bus_type;
hdrv->driver.owner = owner;
hdrv->driver.mod_name = mod_name;
INIT_LIST_HEAD(&hdrv->dyn_list);
spin_lock_init(&hdrv->dyn_lock);
ret = driver_register(&hdrv->driver);
if (ret == 0)
bus_for_each_drv(&hid_bus_type, NULL, NULL,
__hid_bus_driver_added);
return ret;
}
EXPORT_SYMBOL_GPL(__hid_register_driver);
void hid_unregister_driver(struct hid_driver *hdrv)
{
driver_unregister(&hdrv->driver);
hid_free_dynids(hdrv);
bus_for_each_drv(&hid_bus_type, NULL, hdrv, __bus_removed_driver);
}
EXPORT_SYMBOL_GPL(hid_unregister_driver);
int hid_check_keys_pressed(struct hid_device *hid)
{
struct hid_input *hidinput;
int i;
if (!(hid->claimed & HID_CLAIMED_INPUT))
return 0;
list_for_each_entry(hidinput, &hid->inputs, list) {
for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
if (hidinput->input->key[i])
return 1;
}
return 0;
}
EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
#ifdef CONFIG_HID_BPF
static struct hid_bpf_ops hid_ops = {
.hid_get_report = hid_get_report,
.hid_hw_raw_request = hid_hw_raw_request,
.owner = THIS_MODULE,
.bus_type = &hid_bus_type,
};
#endif
static int __init hid_init(void)
{
int ret;
ret = bus_register(&hid_bus_type);
if (ret) {
pr_err("can't register hid bus\n");
goto err;
}
#ifdef CONFIG_HID_BPF
hid_bpf_ops = &hid_ops;
#endif
ret = hidraw_init();
if (ret)
goto err_bus;
hid_debug_init();
return 0;
err_bus:
bus_unregister(&hid_bus_type);
err:
return ret;
}
static void __exit hid_exit(void)
{
#ifdef CONFIG_HID_BPF
hid_bpf_ops = NULL;
#endif
hid_debug_exit();
hidraw_exit();
bus_unregister(&hid_bus_type);
hid_quirks_exit(HID_BUS_ANY);
}
module_init(hid_init);
module_exit(hid_exit);
MODULE_AUTHOR("Andreas Gal");
MODULE_AUTHOR("Vojtech Pavlik");
MODULE_AUTHOR("Jiri Kosina");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-core.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Gembird Joypad, "PC Game Controller"
*
* Copyright (c) 2015 Red Hat, Inc
* Copyright (c) 2015 Benjamin Tissoires
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define GEMBIRD_START_FAULTY_RDESC 8
static const __u8 gembird_jpd_faulty_rdesc[] = {
0x75, 0x08, /* Report Size (8) */
0x95, 0x05, /* Report Count (5) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x35, 0x00, /* Physical Minimum (0) */
0x46, 0xff, 0x00, /* Physical Maximum (255) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x09, 0x32, /* Usage (Z) */
0x09, 0x32, /* Usage (Z) */
0x09, 0x35, /* Usage (Rz) */
0x81, 0x02, /* Input (Data,Var,Abs) */
};
/*
* we fix the report descriptor by:
* - marking the first Z axis as constant (so it is ignored by HID)
* - assign the original second Z to Rx
* - assign the original Rz to Ry
*/
static const __u8 gembird_jpd_fixed_rdesc[] = {
0x75, 0x08, /* Report Size (8) */
0x95, 0x02, /* Report Count (2) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x00, /* Logical Maximum (255) */
0x35, 0x00, /* Physical Minimum (0) */
0x46, 0xff, 0x00, /* Physical Maximum (255) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x81, 0x02, /* Input (Data,Var,Abs) */
0x95, 0x01, /* Report Count (1) */
0x09, 0x32, /* Usage (Z) */
0x81, 0x01, /* Input (Cnst,Arr,Abs) */
0x95, 0x02, /* Report Count (2) */
0x09, 0x33, /* Usage (Rx) */
0x09, 0x34, /* Usage (Ry) */
0x81, 0x02, /* Input (Data,Var,Abs) */
};
static __u8 *gembird_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
__u8 *new_rdesc;
/* delta_size is > 0 */
size_t delta_size = sizeof(gembird_jpd_fixed_rdesc) -
sizeof(gembird_jpd_faulty_rdesc);
size_t new_size = *rsize + delta_size;
if (*rsize >= 31 && !memcmp(&rdesc[GEMBIRD_START_FAULTY_RDESC],
gembird_jpd_faulty_rdesc,
sizeof(gembird_jpd_faulty_rdesc))) {
new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
if (new_rdesc == NULL)
return rdesc;
dev_info(&hdev->dev,
"fixing Gembird JPD-DualForce 2 report descriptor.\n");
/* start by copying the end of the rdesc */
memcpy(new_rdesc + delta_size, rdesc, *rsize);
/* add the correct beginning */
memcpy(new_rdesc, rdesc, GEMBIRD_START_FAULTY_RDESC);
/* replace the faulty part with the fixed one */
memcpy(new_rdesc + GEMBIRD_START_FAULTY_RDESC,
gembird_jpd_fixed_rdesc,
sizeof(gembird_jpd_fixed_rdesc));
*rsize = new_size;
rdesc = new_rdesc;
}
return rdesc;
}
static const struct hid_device_id gembird_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD,
USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) },
{ }
};
MODULE_DEVICE_TABLE(hid, gembird_devices);
static struct hid_driver gembird_driver = {
.name = "gembird",
.id_table = gembird_devices,
.report_fixup = gembird_report_fixup,
};
module_hid_driver(gembird_driver);
MODULE_AUTHOR("Benjamin Tissoires <[email protected]>");
MODULE_DESCRIPTION("HID Gembird joypad driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-gembird.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Lenovo:
* - ThinkPad USB Keyboard with TrackPoint (tpkbd)
* - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd)
* - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd)
* - ThinkPad TrackPoint Keyboard II USB/Bluetooth (cptkbd/tpIIkbd)
*
* Copyright (c) 2012 Bernhard Seibold
* Copyright (c) 2014 Jamie Lentin <[email protected]>
*
* Linux IBM/Lenovo Scrollpoint mouse driver:
* - IBM Scrollpoint III
* - IBM Scrollpoint Pro
* - IBM Scrollpoint Optical
* - IBM Scrollpoint Optical 800dpi
* - IBM Scrollpoint Optical 800dpi Pro
* - Lenovo Scrollpoint Optical
*
* Copyright (c) 2012 Peter De Wachter <[email protected]>
* Copyright (c) 2018 Peter Ganzhorn <[email protected]>
*/
/*
*/
#include <linux/module.h>
#include <linux/sysfs.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/leds.h>
#include <linux/workqueue.h>
#include "hid-ids.h"
/* Userspace expects F20 for mic-mute KEY_MICMUTE does not work */
#define LENOVO_KEY_MICMUTE KEY_F20
struct lenovo_drvdata {
u8 led_report[3]; /* Must be first for proper alignment */
int led_state;
struct mutex led_report_mutex;
struct led_classdev led_mute;
struct led_classdev led_micmute;
struct work_struct fn_lock_sync_work;
struct hid_device *hdev;
int press_to_select;
int dragging;
int release_to_select;
int select_right;
int sensitivity;
int press_speed;
u8 middlebutton_state; /* 0:Up, 1:Down (undecided), 2:Scrolling */
bool fn_lock;
};
#define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
#define TP10UBKBD_LED_OUTPUT_REPORT 9
#define TP10UBKBD_FN_LOCK_LED 0x54
#define TP10UBKBD_MUTE_LED 0x64
#define TP10UBKBD_MICMUTE_LED 0x74
#define TP10UBKBD_LED_OFF 1
#define TP10UBKBD_LED_ON 2
static int lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
enum led_brightness value)
{
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
int ret;
mutex_lock(&data->led_report_mutex);
data->led_report[0] = TP10UBKBD_LED_OUTPUT_REPORT;
data->led_report[1] = led_code;
data->led_report[2] = value ? TP10UBKBD_LED_ON : TP10UBKBD_LED_OFF;
ret = hid_hw_raw_request(hdev, data->led_report[0], data->led_report, 3,
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
if (ret != 3) {
if (ret != -ENODEV)
hid_err(hdev, "Set LED output report error: %d\n", ret);
ret = ret < 0 ? ret : -EIO;
} else {
ret = 0;
}
mutex_unlock(&data->led_report_mutex);
return ret;
}
static void lenovo_tp10ubkbd_sync_fn_lock(struct work_struct *work)
{
struct lenovo_drvdata *data =
container_of(work, struct lenovo_drvdata, fn_lock_sync_work);
lenovo_led_set_tp10ubkbd(data->hdev, TP10UBKBD_FN_LOCK_LED,
data->fn_lock);
}
static const __u8 lenovo_pro_dock_need_fixup_collection[] = {
0x05, 0x88, /* Usage Page (Vendor Usage Page 0x88) */
0x09, 0x01, /* Usage (Vendor Usage 0x01) */
0xa1, 0x01, /* Collection (Application) */
0x85, 0x04, /* Report ID (4) */
0x19, 0x00, /* Usage Minimum (0) */
0x2a, 0xff, 0xff, /* Usage Maximum (65535) */
};
/* Broken ThinkPad TrackPoint II collection (Bluetooth mode) */
static const __u8 lenovo_tpIIbtkbd_need_fixup_collection[] = {
0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined 0xFF00) */
0x09, 0x01, /* Usage (0x01) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x05, /* Report ID (5) */
0x1A, 0xF1, 0x00, /* Usage Minimum (0xF1) */
0x2A, 0xFC, 0x00, /* Usage Maximum (0xFC) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x0D, /* Report Count (13) */
0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x95, 0x03, /* Report Count (3) */
0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
};
static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPPRODOCK:
/* the fixups that need to be done:
* - get a reasonable usage max for the vendor collection
* 0x8801 from the report ID 4
*/
if (*rsize >= 153 &&
memcmp(&rdesc[140], lenovo_pro_dock_need_fixup_collection,
sizeof(lenovo_pro_dock_need_fixup_collection)) == 0) {
rdesc[151] = 0x01;
rdesc[152] = 0x00;
}
break;
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
if (*rsize >= 263 &&
memcmp(&rdesc[234], lenovo_tpIIbtkbd_need_fixup_collection,
sizeof(lenovo_tpIIbtkbd_need_fixup_collection)) == 0) {
rdesc[244] = 0x00; /* usage minimum = 0x00 */
rdesc[247] = 0xff; /* usage maximum = 0xff */
rdesc[252] = 0xff; /* logical maximum = 0xff */
rdesc[254] = 0x08; /* report size = 0x08 */
rdesc[256] = 0x01; /* report count = 0x01 */
rdesc[258] = 0x00; /* input = 0x00 */
rdesc[260] = 0x01; /* report count (2) = 0x01 */
}
break;
}
return rdesc;
}
static int lenovo_input_mapping_tpkbd(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_UP_BUTTON | 0x0010)) {
/* This sub-device contains trackpoint, mark it */
hid_set_drvdata(hdev, (void *)1);
map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
}
return 0;
}
static int lenovo_input_mapping_cptkbd(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
/* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR ||
(usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
switch (usage->hid & HID_USAGE) {
case 0x00f1: /* Fn-F4: Mic mute */
map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
case 0x00f2: /* Fn-F5: Brightness down */
map_key_clear(KEY_BRIGHTNESSDOWN);
return 1;
case 0x00f3: /* Fn-F6: Brightness up */
map_key_clear(KEY_BRIGHTNESSUP);
return 1;
case 0x00f4: /* Fn-F7: External display (projector) */
map_key_clear(KEY_SWITCHVIDEOMODE);
return 1;
case 0x00f5: /* Fn-F8: Wireless */
map_key_clear(KEY_WLAN);
return 1;
case 0x00f6: /* Fn-F9: Control panel */
map_key_clear(KEY_CONFIG);
return 1;
case 0x00f8: /* Fn-F11: View open applications (3 boxes) */
map_key_clear(KEY_SCALE);
return 1;
case 0x00f9: /* Fn-F12: Open My computer (6 boxes) USB-only */
/* NB: This mapping is invented in raw_event below */
map_key_clear(KEY_FILE);
return 1;
case 0x00fa: /* Fn-Esc: Fn-lock toggle */
map_key_clear(KEY_FN_ESC);
return 1;
case 0x00fb: /* Middle mouse button (in native mode) */
map_key_clear(BTN_MIDDLE);
return 1;
}
}
/* Compatibility middle/wheel mappings should be ignored */
if (usage->hid == HID_GD_WHEEL)
return -1;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
(usage->hid & HID_USAGE) == 0x003)
return -1;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
(usage->hid & HID_USAGE) == 0x238)
return -1;
/* Map wheel emulation reports: 0xffa1 = USB, 0xff10 = BT */
if ((usage->hid & HID_USAGE_PAGE) == 0xff100000 ||
(usage->hid & HID_USAGE_PAGE) == 0xffa10000) {
field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
field->logical_minimum = -127;
field->logical_maximum = 127;
switch (usage->hid & HID_USAGE) {
case 0x0000:
hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
return 1;
case 0x0001:
hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
return 1;
default:
return -1;
}
}
return 0;
}
static int lenovo_input_mapping_tpIIkbd(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
/*
* 0xff0a0000 = USB, HID_UP_MSVENDOR = BT.
*
* In BT mode, there are two HID_UP_MSVENDOR pages.
* Use only the page that contains report ID == 5.
*/
if (((usage->hid & HID_USAGE_PAGE) == 0xff0a0000 ||
(usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) &&
field->report->id == 5) {
switch (usage->hid & HID_USAGE) {
case 0x00bb: /* Fn-F4: Mic mute */
map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
case 0x00c3: /* Fn-F5: Brightness down */
map_key_clear(KEY_BRIGHTNESSDOWN);
return 1;
case 0x00c4: /* Fn-F6: Brightness up */
map_key_clear(KEY_BRIGHTNESSUP);
return 1;
case 0x00c1: /* Fn-F8: Notification center */
map_key_clear(KEY_NOTIFICATION_CENTER);
return 1;
case 0x00bc: /* Fn-F9: Control panel */
map_key_clear(KEY_CONFIG);
return 1;
case 0x00b6: /* Fn-F10: Bluetooth */
map_key_clear(KEY_BLUETOOTH);
return 1;
case 0x00b7: /* Fn-F11: Keyboard config */
map_key_clear(KEY_KEYBOARD);
return 1;
case 0x00b8: /* Fn-F12: User function */
map_key_clear(KEY_PROG1);
return 1;
case 0x00b9: /* Fn-PrtSc: Snipping tool */
map_key_clear(KEY_SELECTIVE_SCREENSHOT);
return 1;
case 0x00b5: /* Fn-Esc: Fn-lock toggle */
map_key_clear(KEY_FN_ESC);
return 1;
}
}
if ((usage->hid & HID_USAGE_PAGE) == 0xffa00000) {
switch (usage->hid & HID_USAGE) {
case 0x00fb: /* Middle mouse (in native USB mode) */
map_key_clear(BTN_MIDDLE);
return 1;
}
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR &&
field->report->id == 21) {
switch (usage->hid & HID_USAGE) {
case 0x0004: /* Middle mouse (in native Bluetooth mode) */
map_key_clear(BTN_MIDDLE);
return 1;
}
}
/* Compatibility middle/wheel mappings should be ignored */
if (usage->hid == HID_GD_WHEEL)
return -1;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
(usage->hid & HID_USAGE) == 0x003)
return -1;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
(usage->hid & HID_USAGE) == 0x238)
return -1;
/* Map wheel emulation reports: 0xff10 */
if ((usage->hid & HID_USAGE_PAGE) == 0xff100000) {
field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
field->logical_minimum = -127;
field->logical_maximum = 127;
switch (usage->hid & HID_USAGE) {
case 0x0000:
hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
return 1;
case 0x0001:
hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
return 1;
default:
return -1;
}
}
return 0;
}
static int lenovo_input_mapping_scrollpoint(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_GD_Z) {
hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
return 1;
}
return 0;
}
static int lenovo_input_mapping_tp10_ultrabook_kbd(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
/*
* The ThinkPad 10 Ultrabook Keyboard uses 0x000c0001 usage for
* a bunch of keys which have no standard consumer page code.
*/
if (usage->hid == 0x000c0001) {
switch (usage->usage_index) {
case 8: /* Fn-Esc: Fn-lock toggle */
map_key_clear(KEY_FN_ESC);
return 1;
case 9: /* Fn-F4: Mic mute */
map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
case 10: /* Fn-F7: Control panel */
map_key_clear(KEY_CONFIG);
return 1;
case 11: /* Fn-F8: Search (magnifier glass) */
map_key_clear(KEY_SEARCH);
return 1;
case 12: /* Fn-F10: Open My computer (6 boxes) */
map_key_clear(KEY_FILE);
return 1;
}
}
/*
* The Ultrabook Keyboard sends a spurious F23 key-press when resuming
* from suspend and it does not actually have a F23 key, ignore it.
*/
if (usage->hid == 0x00070072)
return -1;
return 0;
}
static int lenovo_input_mapping_x1_tab_kbd(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
/*
* The ThinkPad X1 Tablet Thin Keyboard uses 0x000c0001 usage for
* a bunch of keys which have no standard consumer page code.
*/
if (usage->hid == 0x000c0001) {
switch (usage->usage_index) {
case 0: /* Fn-F10: Enable/disable bluetooth */
map_key_clear(KEY_BLUETOOTH);
return 1;
case 1: /* Fn-F11: Keyboard settings */
map_key_clear(KEY_KEYBOARD);
return 1;
case 2: /* Fn-F12: User function / Cortana */
map_key_clear(KEY_MACRO1);
return 1;
case 3: /* Fn-PrtSc: Snipping tool */
map_key_clear(KEY_SELECTIVE_SCREENSHOT);
return 1;
case 8: /* Fn-Esc: Fn-lock toggle */
map_key_clear(KEY_FN_ESC);
return 1;
case 9: /* Fn-F4: Mute/unmute microphone */
map_key_clear(KEY_MICMUTE);
return 1;
case 10: /* Fn-F9: Settings */
map_key_clear(KEY_CONFIG);
return 1;
case 13: /* Fn-F7: Manage external displays */
map_key_clear(KEY_SWITCHVIDEOMODE);
return 1;
case 14: /* Fn-F8: Enable/disable wifi */
map_key_clear(KEY_WLAN);
return 1;
}
}
if (usage->hid == (HID_UP_KEYBOARD | 0x009a)) {
map_key_clear(KEY_SYSRQ);
return 1;
}
return 0;
}
static int lenovo_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
return lenovo_input_mapping_tpkbd(hdev, hi, field,
usage, bit, max);
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
return lenovo_input_mapping_cptkbd(hdev, hi, field,
usage, bit, max);
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
return lenovo_input_mapping_tpIIkbd(hdev, hi, field,
usage, bit, max);
case USB_DEVICE_ID_IBM_SCROLLPOINT_III:
case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO:
case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL:
case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL:
case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO:
case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL:
return lenovo_input_mapping_scrollpoint(hdev, hi, field,
usage, bit, max);
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
return lenovo_input_mapping_tp10_ultrabook_kbd(hdev, hi, field,
usage, bit, max);
case USB_DEVICE_ID_LENOVO_X1_TAB:
return lenovo_input_mapping_x1_tab_kbd(hdev, hi, field, usage, bit, max);
default:
return 0;
}
}
#undef map_key_clear
/* Send a config command to the keyboard */
static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
unsigned char byte2, unsigned char byte3)
{
int ret;
unsigned char *buf;
buf = kzalloc(3, GFP_KERNEL);
if (!buf)
return -ENOMEM;
/*
* Feature report 0x13 is used for USB,
* output report 0x18 is used for Bluetooth.
* buf[0] is ignored by hid_hw_raw_request.
*/
buf[0] = 0x18;
buf[1] = byte2;
buf[2] = byte3;
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
ret = hid_hw_raw_request(hdev, 0x13, buf, 3,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
break;
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
ret = hid_hw_output_report(hdev, buf, 3);
break;
default:
ret = -EINVAL;
break;
}
kfree(buf);
return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
}
static void lenovo_features_set_cptkbd(struct hid_device *hdev)
{
int ret;
struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock);
if (ret)
hid_err(hdev, "Fn-lock setting failed: %d\n", ret);
ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity);
if (ret)
hid_err(hdev, "Sensitivity setting failed: %d\n", ret);
}
static ssize_t attr_fn_lock_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n", data->fn_lock);
}
static ssize_t attr_fn_lock_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
int value, ret;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
data->fn_lock = !!value;
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
lenovo_features_set_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
case USB_DEVICE_ID_LENOVO_X1_TAB:
ret = lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
if (ret)
return ret;
break;
}
return count;
}
static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n",
cptkbd_data->sensitivity);
}
static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
return -EINVAL;
cptkbd_data->sensitivity = value;
lenovo_features_set_cptkbd(hdev);
return count;
}
static struct device_attribute dev_attr_fn_lock =
__ATTR(fn_lock, S_IWUSR | S_IRUGO,
attr_fn_lock_show,
attr_fn_lock_store);
static struct device_attribute dev_attr_sensitivity_cptkbd =
__ATTR(sensitivity, S_IWUSR | S_IRUGO,
attr_sensitivity_show_cptkbd,
attr_sensitivity_store_cptkbd);
static struct attribute *lenovo_attributes_cptkbd[] = {
&dev_attr_fn_lock.attr,
&dev_attr_sensitivity_cptkbd.attr,
NULL
};
static const struct attribute_group lenovo_attr_group_cptkbd = {
.attrs = lenovo_attributes_cptkbd,
};
static int lenovo_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
/*
* Compact USB keyboard's Fn-F12 report holds down many other keys, and
* its own key is outside the usage page range. Remove extra
* keypresses and remap to inside usage page.
*/
if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
&& size == 3
&& data[0] == 0x15
&& data[1] == 0x94
&& data[2] == 0x01)) {
data[1] = 0x00;
data[2] = 0x01;
}
return 0;
}
static int lenovo_event_tp10ubkbd(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage, __s32 value)
{
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
/*
* The user has toggled the Fn-lock state. Toggle our own
* cached value of it and sync our value to the keyboard to
* ensure things are in sync (the sycning should be a no-op).
*/
data->fn_lock = !data->fn_lock;
schedule_work(&data->fn_lock_sync_work);
}
return 0;
}
static int lenovo_event_cptkbd(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage, __s32 value)
{
struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
/* "wheel" scroll events */
if (usage->type == EV_REL && (usage->code == REL_WHEEL ||
usage->code == REL_HWHEEL)) {
/* Scroll events disable middle-click event */
cptkbd_data->middlebutton_state = 2;
return 0;
}
/* Middle click events */
if (usage->type == EV_KEY && usage->code == BTN_MIDDLE) {
if (value == 1) {
cptkbd_data->middlebutton_state = 1;
} else if (value == 0) {
if (cptkbd_data->middlebutton_state == 1) {
/* No scrolling inbetween, send middle-click */
input_event(field->hidinput->input,
EV_KEY, BTN_MIDDLE, 1);
input_sync(field->hidinput->input);
input_event(field->hidinput->input,
EV_KEY, BTN_MIDDLE, 0);
input_sync(field->hidinput->input);
}
cptkbd_data->middlebutton_state = 0;
}
return 1;
}
if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
/*
* The user has toggled the Fn-lock state. Toggle our own
* cached value of it and sync our value to the keyboard to
* ensure things are in sync (the syncing should be a no-op).
*/
cptkbd_data->fn_lock = !cptkbd_data->fn_lock;
}
return 0;
}
static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (!hid_get_drvdata(hdev))
return 0;
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
return lenovo_event_cptkbd(hdev, field, usage, value);
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
case USB_DEVICE_ID_LENOVO_X1_TAB:
return lenovo_event_tp10ubkbd(hdev, field, usage, value);
default:
return 0;
}
}
static int lenovo_features_set_tpkbd(struct hid_device *hdev)
{
struct hid_report *report;
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
report->field[0]->value[0] = data_pointer->press_to_select ? 0x01 : 0x02;
report->field[0]->value[0] |= data_pointer->dragging ? 0x04 : 0x08;
report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
report->field[0]->value[0] |= data_pointer->select_right ? 0x80 : 0x40;
report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
report->field[2]->value[0] = data_pointer->sensitivity;
report->field[3]->value[0] = data_pointer->press_speed;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
return 0;
}
static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
}
static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
data_pointer->press_to_select = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static ssize_t attr_dragging_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
}
static ssize_t attr_dragging_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
data_pointer->dragging = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
}
static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
data_pointer->release_to_select = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static ssize_t attr_select_right_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
}
static ssize_t attr_select_right_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
if (value < 0 || value > 1)
return -EINVAL;
data_pointer->select_right = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n",
data_pointer->sensitivity);
}
static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
return -EINVAL;
data_pointer->sensitivity = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
return snprintf(buf, PAGE_SIZE, "%u\n",
data_pointer->press_speed);
}
static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
int value;
if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
return -EINVAL;
data_pointer->press_speed = value;
lenovo_features_set_tpkbd(hdev);
return count;
}
static struct device_attribute dev_attr_press_to_select_tpkbd =
__ATTR(press_to_select, S_IWUSR | S_IRUGO,
attr_press_to_select_show_tpkbd,
attr_press_to_select_store_tpkbd);
static struct device_attribute dev_attr_dragging_tpkbd =
__ATTR(dragging, S_IWUSR | S_IRUGO,
attr_dragging_show_tpkbd,
attr_dragging_store_tpkbd);
static struct device_attribute dev_attr_release_to_select_tpkbd =
__ATTR(release_to_select, S_IWUSR | S_IRUGO,
attr_release_to_select_show_tpkbd,
attr_release_to_select_store_tpkbd);
static struct device_attribute dev_attr_select_right_tpkbd =
__ATTR(select_right, S_IWUSR | S_IRUGO,
attr_select_right_show_tpkbd,
attr_select_right_store_tpkbd);
static struct device_attribute dev_attr_sensitivity_tpkbd =
__ATTR(sensitivity, S_IWUSR | S_IRUGO,
attr_sensitivity_show_tpkbd,
attr_sensitivity_store_tpkbd);
static struct device_attribute dev_attr_press_speed_tpkbd =
__ATTR(press_speed, S_IWUSR | S_IRUGO,
attr_press_speed_show_tpkbd,
attr_press_speed_store_tpkbd);
static struct attribute *lenovo_attributes_tpkbd[] = {
&dev_attr_press_to_select_tpkbd.attr,
&dev_attr_dragging_tpkbd.attr,
&dev_attr_release_to_select_tpkbd.attr,
&dev_attr_select_right_tpkbd.attr,
&dev_attr_sensitivity_tpkbd.attr,
&dev_attr_press_speed_tpkbd.attr,
NULL
};
static const struct attribute_group lenovo_attr_group_tpkbd = {
.attrs = lenovo_attributes_tpkbd,
};
static void lenovo_led_set_tpkbd(struct hid_device *hdev)
{
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
struct hid_report *report;
report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}
static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
static const u8 tp10ubkbd_led[] = { TP10UBKBD_MUTE_LED, TP10UBKBD_MICMUTE_LED };
int led_nr = 0;
int ret = 0;
if (led_cdev == &data_pointer->led_micmute)
led_nr = 1;
if (value == LED_OFF)
data_pointer->led_state &= ~(1 << led_nr);
else
data_pointer->led_state |= 1 << led_nr;
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
lenovo_led_set_tpkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
case USB_DEVICE_ID_LENOVO_X1_TAB:
ret = lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
break;
}
return ret;
}
static int lenovo_register_leds(struct hid_device *hdev)
{
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
size_t name_sz = strlen(dev_name(&hdev->dev)) + 16;
char *name_mute, *name_micm;
int ret;
name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
name_micm = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
if (name_mute == NULL || name_micm == NULL) {
hid_err(hdev, "Could not allocate memory for led data\n");
return -ENOMEM;
}
snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(&hdev->dev));
snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));
data->led_mute.name = name_mute;
data->led_mute.default_trigger = "audio-mute";
data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
data->led_mute.max_brightness = 1;
data->led_mute.flags = LED_HW_PLUGGABLE;
data->led_mute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_mute);
if (ret < 0)
return ret;
data->led_micmute.name = name_micm;
data->led_micmute.default_trigger = "audio-micmute";
data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
data->led_micmute.max_brightness = 1;
data->led_micmute.flags = LED_HW_PLUGGABLE;
data->led_micmute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_micmute);
if (ret < 0) {
led_classdev_unregister(&data->led_mute);
return ret;
}
return 0;
}
static int lenovo_probe_tpkbd(struct hid_device *hdev)
{
struct lenovo_drvdata *data_pointer;
int i, ret;
/*
* Only register extra settings against subdevice where input_mapping
* set drvdata to 1, i.e. the trackpoint.
*/
if (!hid_get_drvdata(hdev))
return 0;
hid_set_drvdata(hdev, NULL);
/* Validate required reports. */
for (i = 0; i < 4; i++) {
if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
return -ENODEV;
}
if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
return -ENODEV;
ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
if (ret)
hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
data_pointer = devm_kzalloc(&hdev->dev,
sizeof(struct lenovo_drvdata),
GFP_KERNEL);
if (data_pointer == NULL) {
hid_err(hdev, "Could not allocate memory for driver data\n");
ret = -ENOMEM;
goto err;
}
// set same default values as windows driver
data_pointer->sensitivity = 0xa0;
data_pointer->press_speed = 0x38;
hid_set_drvdata(hdev, data_pointer);
ret = lenovo_register_leds(hdev);
if (ret)
goto err;
lenovo_features_set_tpkbd(hdev);
return 0;
err:
sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
return ret;
}
static int lenovo_probe_cptkbd(struct hid_device *hdev)
{
int ret;
struct lenovo_drvdata *cptkbd_data;
/* All the custom action happens on the USBMOUSE device for USB */
if (((hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD) ||
(hdev->product == USB_DEVICE_ID_LENOVO_TPIIUSBKBD)) &&
hdev->type != HID_TYPE_USBMOUSE) {
hid_dbg(hdev, "Ignoring keyboard half of device\n");
return 0;
}
cptkbd_data = devm_kzalloc(&hdev->dev,
sizeof(*cptkbd_data),
GFP_KERNEL);
if (cptkbd_data == NULL) {
hid_err(hdev, "can't alloc keyboard descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, cptkbd_data);
/*
* Tell the keyboard a driver understands it, and turn F7, F9, F11 into
* regular keys (Compact only)
*/
if (hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD ||
hdev->product == USB_DEVICE_ID_LENOVO_CBTKBD) {
ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
if (ret)
hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret);
}
/* Switch middle button to native mode */
ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01);
if (ret)
hid_warn(hdev, "Failed to switch middle button: %d\n", ret);
/* Set keyboard settings to known state */
cptkbd_data->middlebutton_state = 0;
cptkbd_data->fn_lock = true;
cptkbd_data->sensitivity = 0x05;
lenovo_features_set_cptkbd(hdev);
ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd);
if (ret)
hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
return 0;
}
static struct attribute *lenovo_attributes_tp10ubkbd[] = {
&dev_attr_fn_lock.attr,
NULL
};
static const struct attribute_group lenovo_attr_group_tp10ubkbd = {
.attrs = lenovo_attributes_tp10ubkbd,
};
static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
{
struct hid_report_enum *rep_enum;
struct lenovo_drvdata *data;
struct hid_report *rep;
bool found;
int ret;
/*
* The LEDs and the Fn-lock functionality use output report 9,
* with an application of 0xffa0001, add the LEDs on the interface
* with this output report.
*/
found = false;
rep_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list) {
if (rep->application == 0xffa00001)
found = true;
}
if (!found)
return 0;
data = devm_kzalloc(&hdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_init(&data->led_report_mutex);
INIT_WORK(&data->fn_lock_sync_work, lenovo_tp10ubkbd_sync_fn_lock);
data->hdev = hdev;
hid_set_drvdata(hdev, data);
/*
* The Thinkpad 10 ultrabook USB kbd dock's Fn-lock defaults to on.
* We cannot read the state, only set it, so we force it to on here
* (which should be a no-op) to make sure that our state matches the
* keyboard's FN-lock state. This is the same as what Windows does.
*/
data->fn_lock = true;
lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, data->fn_lock);
ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
if (ret)
return ret;
ret = lenovo_register_leds(hdev);
if (ret)
goto err;
return 0;
err:
sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
return ret;
}
static int lenovo_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid_parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hid_hw_start failed\n");
goto err;
}
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
ret = lenovo_probe_tpkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
ret = lenovo_probe_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
case USB_DEVICE_ID_LENOVO_X1_TAB:
ret = lenovo_probe_tp10ubkbd(hdev);
break;
default:
ret = 0;
break;
}
if (ret)
goto err_hid;
return 0;
err_hid:
hid_hw_stop(hdev);
err:
return ret;
}
static void lenovo_remove_tpkbd(struct hid_device *hdev)
{
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
/*
* Only the trackpoint half of the keyboard has drvdata and stuff that
* needs unregistering.
*/
if (data_pointer == NULL)
return;
sysfs_remove_group(&hdev->dev.kobj,
&lenovo_attr_group_tpkbd);
led_classdev_unregister(&data_pointer->led_micmute);
led_classdev_unregister(&data_pointer->led_mute);
}
static void lenovo_remove_cptkbd(struct hid_device *hdev)
{
sysfs_remove_group(&hdev->dev.kobj,
&lenovo_attr_group_cptkbd);
}
static void lenovo_remove_tp10ubkbd(struct hid_device *hdev)
{
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
if (data == NULL)
return;
led_classdev_unregister(&data->led_micmute);
led_classdev_unregister(&data->led_mute);
sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
cancel_work_sync(&data->fn_lock_sync_work);
}
static void lenovo_remove(struct hid_device *hdev)
{
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
lenovo_remove_tpkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
lenovo_remove_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
case USB_DEVICE_ID_LENOVO_X1_TAB:
lenovo_remove_tp10ubkbd(hdev);
break;
}
hid_hw_stop(hdev);
}
static int lenovo_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_TPKBD:
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
if (test_bit(EV_REL, hi->input->evbit)) {
/* set only for trackpoint device */
__set_bit(INPUT_PROP_POINTER, hi->input->propbit);
__set_bit(INPUT_PROP_POINTING_STICK,
hi->input->propbit);
}
break;
}
return 0;
}
static const struct hid_device_id lenovo_devices[] = {
{ 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_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIUSBKBD) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIBTKBD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TP10UBKBD) },
/*
* 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 and trackpoint.
*/
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) },
{ }
};
MODULE_DEVICE_TABLE(hid, lenovo_devices);
static struct hid_driver lenovo_driver = {
.name = "lenovo",
.id_table = lenovo_devices,
.input_configured = lenovo_input_configured,
.input_mapping = lenovo_input_mapping,
.probe = lenovo_probe,
.remove = lenovo_remove,
.raw_event = lenovo_raw_event,
.event = lenovo_event,
.report_fixup = lenovo_report_fixup,
};
module_hid_driver(lenovo_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-lenovo.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID raw devices, giving access to raw HID events.
*
* In comparison to hiddev, this device does not process the
* hid events at all (no parsing, no lookups). This lets applications
* to work on raw hid events as they want to, and avoids a need to
* use a transport-specific userspace libhid/libusb libraries.
*
* Copyright (c) 2007-2014 Jiri Kosina
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/cdev.h>
#include <linux/poll.h>
#include <linux/device.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/mutex.h>
#include <linux/sched/signal.h>
#include <linux/string.h>
#include <linux/hidraw.h>
static int hidraw_major;
static struct cdev hidraw_cdev;
static const struct class hidraw_class = {
.name = "hidraw",
};
static struct hidraw *hidraw_table[HIDRAW_MAX_DEVICES];
static DECLARE_RWSEM(minors_rwsem);
static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct hidraw_list *list = file->private_data;
int ret = 0, len;
DECLARE_WAITQUEUE(wait, current);
mutex_lock(&list->read_mutex);
while (ret == 0) {
if (list->head == list->tail) {
add_wait_queue(&list->hidraw->wait, &wait);
set_current_state(TASK_INTERRUPTIBLE);
while (list->head == list->tail) {
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
if (!list->hidraw->exist) {
ret = -EIO;
break;
}
if (file->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
break;
}
/* allow O_NONBLOCK to work well 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->hidraw->wait, &wait);
}
if (ret)
goto out;
len = list->buffer[list->tail].len > count ?
count : list->buffer[list->tail].len;
if (list->buffer[list->tail].value) {
if (copy_to_user(buffer, list->buffer[list->tail].value, len)) {
ret = -EFAULT;
goto out;
}
ret = len;
}
kfree(list->buffer[list->tail].value);
list->buffer[list->tail].value = NULL;
list->tail = (list->tail + 1) & (HIDRAW_BUFFER_SIZE - 1);
}
out:
mutex_unlock(&list->read_mutex);
return ret;
}
/*
* The first byte of the report buffer is expected to be a report number.
*/
static ssize_t hidraw_send_report(struct file *file, const char __user *buffer, size_t count, unsigned char report_type)
{
unsigned int minor = iminor(file_inode(file));
struct hid_device *dev;
__u8 *buf;
int ret = 0;
lockdep_assert_held(&minors_rwsem);
if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
ret = -ENODEV;
goto out;
}
dev = hidraw_table[minor]->hid;
if (count > HID_MAX_BUFFER_SIZE) {
hid_warn(dev, "pid %d passed too large report\n",
task_pid_nr(current));
ret = -EINVAL;
goto out;
}
if (count < 2) {
hid_warn(dev, "pid %d passed too short report\n",
task_pid_nr(current));
ret = -EINVAL;
goto out;
}
buf = memdup_user(buffer, count);
if (IS_ERR(buf)) {
ret = PTR_ERR(buf);
goto out;
}
if ((report_type == HID_OUTPUT_REPORT) &&
!(dev->quirks & HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP)) {
ret = hid_hw_output_report(dev, buf, count);
/*
* compatibility with old implementation of USB-HID and I2C-HID:
* if the device does not support receiving output reports,
* on an interrupt endpoint, fallback to SET_REPORT HID command.
*/
if (ret != -ENOSYS)
goto out_free;
}
ret = hid_hw_raw_request(dev, buf[0], buf, count, report_type,
HID_REQ_SET_REPORT);
out_free:
kfree(buf);
out:
return ret;
}
static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
ssize_t ret;
down_read(&minors_rwsem);
ret = hidraw_send_report(file, buffer, count, HID_OUTPUT_REPORT);
up_read(&minors_rwsem);
return ret;
}
/*
* This function performs a Get_Report transfer over the control endpoint
* per section 7.2.1 of the HID specification, version 1.1. The first byte
* of buffer is the report number to request, or 0x0 if the device does not
* use numbered reports. The report_type parameter can be HID_FEATURE_REPORT
* or HID_INPUT_REPORT.
*/
static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t count, unsigned char report_type)
{
unsigned int minor = iminor(file_inode(file));
struct hid_device *dev;
__u8 *buf;
int ret = 0, len;
unsigned char report_number;
lockdep_assert_held(&minors_rwsem);
if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
ret = -ENODEV;
goto out;
}
dev = hidraw_table[minor]->hid;
if (!dev->ll_driver->raw_request) {
ret = -ENODEV;
goto out;
}
if (count > HID_MAX_BUFFER_SIZE) {
hid_warn(dev, "pid %d passed too large report\n",
task_pid_nr(current));
ret = -EINVAL;
goto out;
}
if (count < 2) {
hid_warn(dev, "pid %d passed too short report\n",
task_pid_nr(current));
ret = -EINVAL;
goto out;
}
buf = kmalloc(count, GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out;
}
/*
* Read the first byte from the user. This is the report number,
* which is passed to hid_hw_raw_request().
*/
if (copy_from_user(&report_number, buffer, 1)) {
ret = -EFAULT;
goto out_free;
}
ret = hid_hw_raw_request(dev, report_number, buf, count, report_type,
HID_REQ_GET_REPORT);
if (ret < 0)
goto out_free;
len = (ret < count) ? ret : count;
if (copy_to_user(buffer, buf, len)) {
ret = -EFAULT;
goto out_free;
}
ret = len;
out_free:
kfree(buf);
out:
return ret;
}
static __poll_t hidraw_poll(struct file *file, poll_table *wait)
{
struct hidraw_list *list = file->private_data;
__poll_t mask = EPOLLOUT | EPOLLWRNORM; /* hidraw is always writable */
poll_wait(file, &list->hidraw->wait, wait);
if (list->head != list->tail)
mask |= EPOLLIN | EPOLLRDNORM;
if (!list->hidraw->exist)
mask |= EPOLLERR | EPOLLHUP;
return mask;
}
static int hidraw_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct hidraw *dev;
struct hidraw_list *list;
unsigned long flags;
int err = 0;
if (!(list = kzalloc(sizeof(struct hidraw_list), GFP_KERNEL))) {
err = -ENOMEM;
goto out;
}
/*
* Technically not writing to the hidraw_table but a write lock is
* required to protect the device refcount. This is symmetrical to
* hidraw_release().
*/
down_write(&minors_rwsem);
if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
err = -ENODEV;
goto out_unlock;
}
dev = hidraw_table[minor];
if (!dev->open++) {
err = hid_hw_power(dev->hid, PM_HINT_FULLON);
if (err < 0) {
dev->open--;
goto out_unlock;
}
err = hid_hw_open(dev->hid);
if (err < 0) {
hid_hw_power(dev->hid, PM_HINT_NORMAL);
dev->open--;
goto out_unlock;
}
}
list->hidraw = hidraw_table[minor];
mutex_init(&list->read_mutex);
spin_lock_irqsave(&hidraw_table[minor]->list_lock, flags);
list_add_tail(&list->node, &hidraw_table[minor]->list);
spin_unlock_irqrestore(&hidraw_table[minor]->list_lock, flags);
file->private_data = list;
out_unlock:
up_write(&minors_rwsem);
out:
if (err < 0)
kfree(list);
return err;
}
static int hidraw_fasync(int fd, struct file *file, int on)
{
struct hidraw_list *list = file->private_data;
return fasync_helper(fd, file, on, &list->fasync);
}
static void drop_ref(struct hidraw *hidraw, int exists_bit)
{
if (exists_bit) {
hidraw->exist = 0;
if (hidraw->open) {
hid_hw_close(hidraw->hid);
wake_up_interruptible(&hidraw->wait);
}
device_destroy(&hidraw_class,
MKDEV(hidraw_major, hidraw->minor));
} else {
--hidraw->open;
}
if (!hidraw->open) {
if (!hidraw->exist) {
hidraw_table[hidraw->minor] = NULL;
kfree(hidraw);
} else {
/* close device for last reader */
hid_hw_close(hidraw->hid);
hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
}
}
}
static int hidraw_release(struct inode * inode, struct file * file)
{
unsigned int minor = iminor(inode);
struct hidraw_list *list = file->private_data;
unsigned long flags;
down_write(&minors_rwsem);
spin_lock_irqsave(&hidraw_table[minor]->list_lock, flags);
for (int i = list->tail; i < list->head; i++)
kfree(list->buffer[i].value);
list_del(&list->node);
spin_unlock_irqrestore(&hidraw_table[minor]->list_lock, flags);
kfree(list);
drop_ref(hidraw_table[minor], 0);
up_write(&minors_rwsem);
return 0;
}
static long hidraw_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
struct inode *inode = file_inode(file);
unsigned int minor = iminor(inode);
long ret = 0;
struct hidraw *dev;
void __user *user_arg = (void __user*) arg;
down_read(&minors_rwsem);
dev = hidraw_table[minor];
if (!dev || !dev->exist) {
ret = -ENODEV;
goto out;
}
switch (cmd) {
case HIDIOCGRDESCSIZE:
if (put_user(dev->hid->rsize, (int __user *)arg))
ret = -EFAULT;
break;
case HIDIOCGRDESC:
{
__u32 len;
if (get_user(len, (int __user *)arg))
ret = -EFAULT;
else if (len > HID_MAX_DESCRIPTOR_SIZE - 1)
ret = -EINVAL;
else if (copy_to_user(user_arg + offsetof(
struct hidraw_report_descriptor,
value[0]),
dev->hid->rdesc,
min(dev->hid->rsize, len)))
ret = -EFAULT;
break;
}
case HIDIOCGRAWINFO:
{
struct hidraw_devinfo dinfo;
dinfo.bustype = dev->hid->bus;
dinfo.vendor = dev->hid->vendor;
dinfo.product = dev->hid->product;
if (copy_to_user(user_arg, &dinfo, sizeof(dinfo)))
ret = -EFAULT;
break;
}
default:
{
struct hid_device *hid = dev->hid;
if (_IOC_TYPE(cmd) != 'H') {
ret = -EINVAL;
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCSFEATURE(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_send_report(file, user_arg, len, HID_FEATURE_REPORT);
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGFEATURE(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_get_report(file, user_arg, len, HID_FEATURE_REPORT);
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCSINPUT(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_send_report(file, user_arg, len, HID_INPUT_REPORT);
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGINPUT(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_get_report(file, user_arg, len, HID_INPUT_REPORT);
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCSOUTPUT(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_send_report(file, user_arg, len, HID_OUTPUT_REPORT);
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGOUTPUT(0))) {
int len = _IOC_SIZE(cmd);
ret = hidraw_get_report(file, user_arg, len, HID_OUTPUT_REPORT);
break;
}
/* Begin Read-only ioctls. */
if (_IOC_DIR(cmd) != _IOC_READ) {
ret = -EINVAL;
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) {
int len = strlen(hid->name) + 1;
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
ret = copy_to_user(user_arg, hid->name, len) ?
-EFAULT : len;
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) {
int len = strlen(hid->phys) + 1;
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
ret = copy_to_user(user_arg, hid->phys, len) ?
-EFAULT : len;
break;
}
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWUNIQ(0))) {
int len = strlen(hid->uniq) + 1;
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
ret = copy_to_user(user_arg, hid->uniq, len) ?
-EFAULT : len;
break;
}
}
ret = -ENOTTY;
}
out:
up_read(&minors_rwsem);
return ret;
}
static const struct file_operations hidraw_ops = {
.owner = THIS_MODULE,
.read = hidraw_read,
.write = hidraw_write,
.poll = hidraw_poll,
.open = hidraw_open,
.release = hidraw_release,
.unlocked_ioctl = hidraw_ioctl,
.fasync = hidraw_fasync,
.compat_ioctl = compat_ptr_ioctl,
.llseek = noop_llseek,
};
int hidraw_report_event(struct hid_device *hid, u8 *data, int len)
{
struct hidraw *dev = hid->hidraw;
struct hidraw_list *list;
int ret = 0;
unsigned long flags;
spin_lock_irqsave(&dev->list_lock, flags);
list_for_each_entry(list, &dev->list, node) {
int new_head = (list->head + 1) & (HIDRAW_BUFFER_SIZE - 1);
if (new_head == list->tail)
continue;
if (!(list->buffer[list->head].value = kmemdup(data, len, GFP_ATOMIC))) {
ret = -ENOMEM;
break;
}
list->buffer[list->head].len = len;
list->head = new_head;
kill_fasync(&list->fasync, SIGIO, POLL_IN);
}
spin_unlock_irqrestore(&dev->list_lock, flags);
wake_up_interruptible(&dev->wait);
return ret;
}
EXPORT_SYMBOL_GPL(hidraw_report_event);
int hidraw_connect(struct hid_device *hid)
{
int minor, result;
struct hidraw *dev;
/* we accept any HID device, all applications */
dev = kzalloc(sizeof(struct hidraw), GFP_KERNEL);
if (!dev)
return -ENOMEM;
result = -EINVAL;
down_write(&minors_rwsem);
for (minor = 0; minor < HIDRAW_MAX_DEVICES; minor++) {
if (hidraw_table[minor])
continue;
hidraw_table[minor] = dev;
result = 0;
break;
}
if (result) {
up_write(&minors_rwsem);
kfree(dev);
goto out;
}
dev->dev = device_create(&hidraw_class, &hid->dev, MKDEV(hidraw_major, minor),
NULL, "%s%d", "hidraw", minor);
if (IS_ERR(dev->dev)) {
hidraw_table[minor] = NULL;
up_write(&minors_rwsem);
result = PTR_ERR(dev->dev);
kfree(dev);
goto out;
}
init_waitqueue_head(&dev->wait);
spin_lock_init(&dev->list_lock);
INIT_LIST_HEAD(&dev->list);
dev->hid = hid;
dev->minor = minor;
dev->exist = 1;
hid->hidraw = dev;
up_write(&minors_rwsem);
out:
return result;
}
EXPORT_SYMBOL_GPL(hidraw_connect);
void hidraw_disconnect(struct hid_device *hid)
{
struct hidraw *hidraw = hid->hidraw;
down_write(&minors_rwsem);
drop_ref(hidraw, 1);
up_write(&minors_rwsem);
}
EXPORT_SYMBOL_GPL(hidraw_disconnect);
int __init hidraw_init(void)
{
int result;
dev_t dev_id;
result = alloc_chrdev_region(&dev_id, HIDRAW_FIRST_MINOR,
HIDRAW_MAX_DEVICES, "hidraw");
if (result < 0) {
pr_warn("can't get major number\n");
goto out;
}
hidraw_major = MAJOR(dev_id);
result = class_register(&hidraw_class);
if (result)
goto error_cdev;
cdev_init(&hidraw_cdev, &hidraw_ops);
result = cdev_add(&hidraw_cdev, dev_id, HIDRAW_MAX_DEVICES);
if (result < 0)
goto error_class;
pr_info("raw HID events driver (C) Jiri Kosina\n");
out:
return result;
error_class:
class_unregister(&hidraw_class);
error_cdev:
unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES);
goto out;
}
void hidraw_exit(void)
{
dev_t dev_id = MKDEV(hidraw_major, 0);
cdev_del(&hidraw_cdev);
class_unregister(&hidraw_class);
unregister_chrdev_region(dev_id, HIDRAW_MAX_DEVICES);
}
| linux-master | drivers/hid/hidraw.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for various HID compliant devices by ThrustMaster:
* ThrustMaster FireStorm Dual Power 2
* and possibly others whose device ids haven't been added.
*
* Modified to support ThrustMaster devices by Zinx Verituse
* on 2003-01-25 from the Logitech force feedback driver,
* which is by Johann Deneux.
*
* Copyright (c) 2003 Zinx Verituse <[email protected]>
* Copyright (c) 2002 Johann Deneux
*/
/*
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include "hid-ids.h"
#define THRUSTMASTER_DEVICE_ID_2_IN_1_DT 0xb320
static const signed short ff_rumble[] = {
FF_RUMBLE,
-1
};
static const signed short ff_joystick[] = {
FF_CONSTANT,
-1
};
#ifdef CONFIG_THRUSTMASTER_FF
/* Usages for thrustmaster devices I know about */
#define THRUSTMASTER_USAGE_FF (HID_UP_GENDESK | 0xbb)
struct tmff_device {
struct hid_report *report;
struct hid_field *ff_field;
};
/* Changes values from 0 to 0xffff into values from minimum to maximum */
static inline int tmff_scale_u16(unsigned int in, int minimum, int maximum)
{
int ret;
ret = (in * (maximum - minimum) / 0xffff) + minimum;
if (ret < minimum)
return minimum;
if (ret > maximum)
return maximum;
return ret;
}
/* Changes values from -0x80 to 0x7f into values from minimum to maximum */
static inline int tmff_scale_s8(int in, int minimum, int maximum)
{
int ret;
ret = (((in + 0x80) * (maximum - minimum)) / 0xff) + minimum;
if (ret < minimum)
return minimum;
if (ret > maximum)
return maximum;
return ret;
}
static int tmff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct tmff_device *tmff = data;
struct hid_field *ff_field = tmff->ff_field;
int x, y;
int left, right; /* Rumbling */
switch (effect->type) {
case FF_CONSTANT:
x = tmff_scale_s8(effect->u.ramp.start_level,
ff_field->logical_minimum,
ff_field->logical_maximum);
y = tmff_scale_s8(effect->u.ramp.end_level,
ff_field->logical_minimum,
ff_field->logical_maximum);
dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
ff_field->value[0] = x;
ff_field->value[1] = y;
hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);
break;
case FF_RUMBLE:
left = tmff_scale_u16(effect->u.rumble.weak_magnitude,
ff_field->logical_minimum,
ff_field->logical_maximum);
right = tmff_scale_u16(effect->u.rumble.strong_magnitude,
ff_field->logical_minimum,
ff_field->logical_maximum);
/* 2-in-1 strong motor is left */
if (hid->product == THRUSTMASTER_DEVICE_ID_2_IN_1_DT)
swap(left, right);
dbg_hid("(left,right)=(%08x, %08x)\n", left, right);
ff_field->value[0] = left;
ff_field->value[1] = right;
hid_hw_request(hid, tmff->report, HID_REQ_SET_REPORT);
break;
}
return 0;
}
static int tmff_init(struct hid_device *hid, const signed short *ff_bits)
{
struct tmff_device *tmff;
struct hid_report *report;
struct list_head *report_list;
struct hid_input *hidinput;
struct input_dev *input_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);
input_dev = hidinput->input;
tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
if (!tmff)
return -ENOMEM;
/* Find the report to use */
report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
list_for_each_entry(report, report_list, list) {
int fieldnum;
for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {
struct hid_field *field = report->field[fieldnum];
if (field->maxusage <= 0)
continue;
switch (field->usage[0].hid) {
case THRUSTMASTER_USAGE_FF:
if (field->report_count < 2) {
hid_warn(hid, "ignoring FF field with report_count < 2\n");
continue;
}
if (field->logical_maximum ==
field->logical_minimum) {
hid_warn(hid, "ignoring FF field with logical_maximum == logical_minimum\n");
continue;
}
if (tmff->report && tmff->report != report) {
hid_warn(hid, "ignoring FF field in other report\n");
continue;
}
if (tmff->ff_field && tmff->ff_field != field) {
hid_warn(hid, "ignoring duplicate FF field\n");
continue;
}
tmff->report = report;
tmff->ff_field = field;
for (i = 0; ff_bits[i] >= 0; i++)
set_bit(ff_bits[i], input_dev->ffbit);
break;
default:
hid_warn(hid, "ignoring unknown output usage %08x\n",
field->usage[0].hid);
continue;
}
}
}
if (!tmff->report) {
hid_err(hid, "can't find FF field in output reports\n");
error = -ENODEV;
goto fail;
}
error = input_ff_create_memless(input_dev, tmff, tmff_play);
if (error)
goto fail;
hid_info(hid, "force feedback for ThrustMaster devices by Zinx Verituse <[email protected]>\n");
return 0;
fail:
kfree(tmff);
return error;
}
#else
static inline int tmff_init(struct hid_device *hid, const signed short *ff_bits)
{
return 0;
}
#endif
static int tm_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;
}
tmff_init(hdev, (void *)id->driver_data);
return 0;
err:
return ret;
}
static const struct hid_device_id tm_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300),
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304), /* FireStorm Dual Power 2 (and 3) */
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, THRUSTMASTER_DEVICE_ID_2_IN_1_DT), /* Dual Trigger 2-in-1 */
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323), /* Dual Trigger 3-in-1 (PC Mode) */
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324), /* Dual Trigger 3-in-1 (PS3 Mode) */
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb605), /* NASCAR PRO FF2 Wheel */
.driver_data = (unsigned long)ff_joystick },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651), /* FGT Rumble Force Wheel */
.driver_data = (unsigned long)ff_rumble },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653), /* RGT Force Feedback CLUTCH Raging Wheel */
.driver_data = (unsigned long)ff_joystick },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654), /* FGT Force Feedback Wheel */
.driver_data = (unsigned long)ff_joystick },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a), /* F430 Force Feedback Wheel */
.driver_data = (unsigned long)ff_joystick },
{ }
};
MODULE_DEVICE_TABLE(hid, tm_devices);
static struct hid_driver tm_driver = {
.name = "thrustmaster",
.id_table = tm_devices,
.probe = tm_probe,
};
module_hid_driver(tm_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-tmff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for various devices which are apparently based on the same chipset
* from certain vendor which produces chips that contain wrong LogicalMaximum
* value in their HID report descriptor. Currently supported devices are:
*
* Ortek PKB-1700
* Ortek WKB-2000
* iHome IMAC-A210S
* Skycable wireless presenter
*
* Copyright (c) 2010 Johnathon Harris <[email protected]>
* Copyright (c) 2011 Jiri Kosina
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
hid_info(hdev, "Fixing up logical maximum in report descriptor (Ortek)\n");
rdesc[55] = 0x92;
} else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
hid_info(hdev, "Fixing up logical maximum in report descriptor (Skycable)\n");
rdesc[53] = 0x65;
}
return rdesc;
}
static const struct hid_device_id ortek_devices[] = {
{ 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) },
{ }
};
MODULE_DEVICE_TABLE(hid, ortek_devices);
static struct hid_driver ortek_driver = {
.name = "ortek",
.id_table = ortek_devices,
.report_fixup = ortek_report_fixup
};
module_hid_driver(ortek_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-ortek.c |
// SPDX-License-Identifier: GPL-2.0
/*
* Helpers for ChromeOS HID Vivaldi keyboards
*
* Copyright (C) 2022 Google, Inc
*/
#include <linux/export.h>
#include <linux/hid.h>
#include <linux/input/vivaldi-fmap.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include "hid-vivaldi-common.h"
#define MIN_FN_ROW_KEY 1
#define MAX_FN_ROW_KEY VIVALDI_MAX_FUNCTION_ROW_KEYS
#define HID_VD_FN_ROW_PHYSMAP 0x00000001
#define HID_USAGE_FN_ROW_PHYSMAP (HID_UP_GOOGLEVENDOR | HID_VD_FN_ROW_PHYSMAP)
/**
* vivaldi_feature_mapping - Fill out vivaldi keymap data exposed via HID
* @hdev: HID device to parse
* @field: HID field to parse
* @usage: HID usage to parse
*
* Note: this function assumes that driver data attached to @hdev contains an
* instance of &struct vivaldi_data at the very beginning.
*/
void vivaldi_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct vivaldi_data *data = hid_get_drvdata(hdev);
struct hid_report *report = field->report;
u8 *report_data, *buf;
u32 report_len;
unsigned int fn_key;
int ret;
if (field->logical != HID_USAGE_FN_ROW_PHYSMAP ||
(usage->hid & HID_USAGE_PAGE) != HID_UP_ORDINAL)
return;
fn_key = usage->hid & HID_USAGE;
if (fn_key < MIN_FN_ROW_KEY || fn_key > MAX_FN_ROW_KEY)
return;
if (fn_key > data->num_function_row_keys)
data->num_function_row_keys = fn_key;
report_data = buf = hid_alloc_report_buf(report, GFP_KERNEL);
if (!report_data)
return;
report_len = hid_report_len(report);
if (!report->id) {
/*
* hid_hw_raw_request() will stuff report ID (which will be 0)
* into the first byte of the buffer even for unnumbered
* reports, so we need to account for this to avoid getting
* -EOVERFLOW in return.
* Note that hid_alloc_report_buf() adds 7 bytes to the size
* so we can safely say that we have space for an extra byte.
*/
report_len++;
}
ret = hid_hw_raw_request(hdev, report->id, report_data,
report_len, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret < 0) {
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
field->report->id);
goto out;
}
if (!report->id) {
/*
* Undo the damage from hid_hw_raw_request() for unnumbered
* reports.
*/
report_data++;
report_len--;
}
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, report_data,
report_len, 0);
if (ret) {
dev_warn(&hdev->dev, "failed to report feature %d\n",
field->report->id);
goto out;
}
data->function_row_physmap[fn_key - MIN_FN_ROW_KEY] =
field->value[usage->usage_index];
out:
kfree(buf);
}
EXPORT_SYMBOL_GPL(vivaldi_feature_mapping);
static ssize_t function_row_physmap_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct vivaldi_data *data = hid_get_drvdata(hdev);
return vivaldi_function_row_physmap_show(data, buf);
}
static DEVICE_ATTR_RO(function_row_physmap);
static struct attribute *vivaldi_sysfs_attrs[] = {
&dev_attr_function_row_physmap.attr,
NULL
};
static umode_t vivaldi_is_visible(struct kobject *kobj, struct attribute *attr,
int n)
{
struct hid_device *hdev = to_hid_device(kobj_to_dev(kobj));
struct vivaldi_data *data = hid_get_drvdata(hdev);
if (!data->num_function_row_keys)
return 0;
return attr->mode;
}
static const struct attribute_group vivaldi_attribute_group = {
.attrs = vivaldi_sysfs_attrs,
.is_visible = vivaldi_is_visible,
};
const struct attribute_group *vivaldi_attribute_groups[] = {
&vivaldi_attribute_group,
NULL,
};
EXPORT_SYMBOL_GPL(vivaldi_attribute_groups);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-vivaldi-common.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for VRC-2 2-axis Car controller
*
* Copyright (C) 2022 Marcus Folkesson <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
/*
* VID/PID are probably "borrowed", so keep them locally and
* do not populate hid-ids.h with those.
*/
#define USB_VENDOR_ID_VRC2 (0x07c0)
#define USB_DEVICE_ID_VRC2 (0x1125)
static __u8 vrc2_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, 0x31, // Usage (Y)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x07, // Logical Maximum (2047)
0x35, 0x00, // Physical Minimum (0)
0x46, 0xFF, 0x00, // Physical Maximum (255)
0x75, 0x10, // Report Size (16)
0x95, 0x02, // Report Count (2)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x75, 0x08, // Report Size (8)
0x95, 0x03, // Report Count (3)
0x81, 0x03, // Input (Cnst,Var,Abs)
0xC0, // End Collection
};
static __u8 *vrc2_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
hid_info(hdev, "fixing up VRC-2 report descriptor\n");
*rsize = sizeof(vrc2_rdesc_fixed);
return vrc2_rdesc_fixed;
}
static int vrc2_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
/*
* The device gives us 2 separate USB endpoints.
* One of those (the one with report descriptor size of 23) is just bogus so ignore it
*/
if (hdev->dev_rsize == 23)
return -ENODEV;
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 vrc2_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_VRC2, USB_DEVICE_ID_VRC2) },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(hid, vrc2_devices);
static struct hid_driver vrc2_driver = {
.name = "vrc2",
.id_table = vrc2_devices,
.report_fixup = vrc2_report_fixup,
.probe = vrc2_probe,
};
module_hid_driver(vrc2_driver);
MODULE_AUTHOR("Marcus Folkesson <[email protected]>");
MODULE_DESCRIPTION("HID driver for VRC-2 2-axis Car controller");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-vrc2.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Plantronics USB HID Driver
*
* Copyright (c) 2014 JD Cole <[email protected]>
* Copyright (c) 2015-2018 Terry Junge <[email protected]>
*/
/*
*/
#include "hid-ids.h"
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#define PLT_HID_1_0_PAGE 0xffa00000
#define PLT_HID_2_0_PAGE 0xffa20000
#define PLT_BASIC_TELEPHONY 0x0003
#define PLT_BASIC_EXCEPTION 0x0005
#define PLT_VOL_UP 0x00b1
#define PLT_VOL_DOWN 0x00b2
#define PLT1_VOL_UP (PLT_HID_1_0_PAGE | PLT_VOL_UP)
#define PLT1_VOL_DOWN (PLT_HID_1_0_PAGE | PLT_VOL_DOWN)
#define PLT2_VOL_UP (PLT_HID_2_0_PAGE | PLT_VOL_UP)
#define PLT2_VOL_DOWN (PLT_HID_2_0_PAGE | PLT_VOL_DOWN)
#define PLT_DA60 0xda60
#define PLT_BT300_MIN 0x0413
#define PLT_BT300_MAX 0x0418
#define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \
(usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
#define PLT_QUIRK_DOUBLE_VOLUME_KEYS BIT(0)
#define PLT_DOUBLE_KEY_TIMEOUT 5 /* ms */
struct plt_drv_data {
unsigned long device_type;
unsigned long last_volume_key_ts;
u32 quirks;
};
static int plantronics_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage,
unsigned long **bit, int *max)
{
unsigned short mapped_key;
struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
unsigned long plt_type = drv_data->device_type;
/* special case for PTT products */
if (field->application == HID_GD_JOYSTICK)
goto defaulted;
/* handle volume up/down mapping */
/* non-standard types or multi-HID interfaces - plt_type is PID */
if (!(plt_type & HID_USAGE_PAGE)) {
switch (plt_type) {
case PLT_DA60:
if (PLT_ALLOW_CONSUMER)
goto defaulted;
goto ignored;
default:
if (PLT_ALLOW_CONSUMER)
goto defaulted;
}
}
/* handle standard types - plt_type is 0xffa0uuuu or 0xffa2uuuu */
/* 'basic telephony compliant' - allow default consumer page map */
else if ((plt_type & HID_USAGE) >= PLT_BASIC_TELEPHONY &&
(plt_type & HID_USAGE) != PLT_BASIC_EXCEPTION) {
if (PLT_ALLOW_CONSUMER)
goto defaulted;
}
/* not 'basic telephony' - apply legacy mapping */
/* only map if the field is in the device's primary vendor page */
else if (!((field->application ^ plt_type) & HID_USAGE_PAGE)) {
switch (usage->hid) {
case PLT1_VOL_UP:
case PLT2_VOL_UP:
mapped_key = KEY_VOLUMEUP;
goto mapped;
case PLT1_VOL_DOWN:
case PLT2_VOL_DOWN:
mapped_key = KEY_VOLUMEDOWN;
goto mapped;
}
}
/*
* Future mapping of call control or other usages,
* if and when keys are defined would go here
* otherwise, ignore everything else that was not mapped
*/
ignored:
return -1;
defaulted:
hid_dbg(hdev, "usage: %08x (appl: %08x) - defaulted\n",
usage->hid, field->application);
return 0;
mapped:
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, mapped_key);
hid_dbg(hdev, "usage: %08x (appl: %08x) - mapped to key %d\n",
usage->hid, field->application, mapped_key);
return 1;
}
static int plantronics_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
if (drv_data->quirks & PLT_QUIRK_DOUBLE_VOLUME_KEYS) {
unsigned long prev_ts, cur_ts;
/* Usages are filtered in plantronics_usages. */
if (!value) /* Handle key presses only. */
return 0;
prev_ts = drv_data->last_volume_key_ts;
cur_ts = jiffies;
if (jiffies_to_msecs(cur_ts - prev_ts) <= PLT_DOUBLE_KEY_TIMEOUT)
return 1; /* Ignore the repeated key. */
drv_data->last_volume_key_ts = cur_ts;
}
return 0;
}
static unsigned long plantronics_device_type(struct hid_device *hdev)
{
unsigned i, col_page;
unsigned long plt_type = hdev->product;
/* multi-HID interfaces? - plt_type is PID */
if (plt_type >= PLT_BT300_MIN && plt_type <= PLT_BT300_MAX)
goto exit;
/* determine primary vendor page */
for (i = 0; i < hdev->maxcollection; i++) {
col_page = hdev->collection[i].usage & HID_USAGE_PAGE;
if (col_page == PLT_HID_2_0_PAGE) {
plt_type = hdev->collection[i].usage;
break;
}
if (col_page == PLT_HID_1_0_PAGE)
plt_type = hdev->collection[i].usage;
}
exit:
hid_dbg(hdev, "plt_type decoded as: %08lx\n", plt_type);
return plt_type;
}
static int plantronics_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct plt_drv_data *drv_data;
int ret;
drv_data = devm_kzalloc(&hdev->dev, sizeof(*drv_data), GFP_KERNEL);
if (!drv_data)
return -ENOMEM;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
drv_data->device_type = plantronics_device_type(hdev);
drv_data->quirks = id->driver_data;
drv_data->last_volume_key_ts = jiffies - msecs_to_jiffies(PLT_DOUBLE_KEY_TIMEOUT);
hid_set_drvdata(hdev, drv_data);
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE);
if (ret)
hid_err(hdev, "hw start failed\n");
err:
return ret;
}
static const struct hid_device_id plantronics_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3210_SERIES),
.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES),
.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES),
.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES),
.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, plantronics_devices);
static const struct hid_usage_id plantronics_usages[] = {
{ HID_CP_VOLUMEUP, EV_KEY, HID_ANY_ID },
{ HID_CP_VOLUMEDOWN, EV_KEY, HID_ANY_ID },
{ HID_TERMINATOR, HID_TERMINATOR, HID_TERMINATOR }
};
static struct hid_driver plantronics_driver = {
.name = "plantronics",
.id_table = plantronics_devices,
.usage_table = plantronics_usages,
.input_mapping = plantronics_input_mapping,
.event = plantronics_event,
.probe = plantronics_probe,
};
module_hid_driver(plantronics_driver);
MODULE_AUTHOR("JD Cole <[email protected]>");
MODULE_AUTHOR("Terry Junge <[email protected]>");
MODULE_DESCRIPTION("Plantronics USB HID Driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-plantronics.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for EMS Trio Linker Plus II
*
* Copyright (c) 2010 Ignaz Forster <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/module.h>
#include "hid-ids.h"
struct emsff_device {
struct hid_report *report;
};
static int emsff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct emsff_device *emsff = data;
int weak, strong;
weak = effect->u.rumble.weak_magnitude;
strong = effect->u.rumble.strong_magnitude;
dbg_hid("called with 0x%04x 0x%04x\n", strong, weak);
weak = weak * 0xff / 0xffff;
strong = strong * 0xff / 0xffff;
emsff->report->field[0]->value[1] = weak;
emsff->report->field[0]->value[2] = strong;
dbg_hid("running with 0x%02x 0x%02x\n", strong, weak);
hid_hw_request(hid, emsff->report, HID_REQ_SET_REPORT);
return 0;
}
static int emsff_init(struct hid_device *hid)
{
struct emsff_device *emsff;
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_first_entry(&hid->inputs, struct hid_input, list);
dev = hidinput->input;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report = list_first_entry(report_list, 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 < 7) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
emsff = kzalloc(sizeof(struct emsff_device), GFP_KERNEL);
if (!emsff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, emsff, emsff_play);
if (error) {
kfree(emsff);
return error;
}
emsff->report = report;
emsff->report->field[0]->value[0] = 0x01;
emsff->report->field[0]->value[1] = 0x00;
emsff->report->field[0]->value[2] = 0x00;
emsff->report->field[0]->value[3] = 0x00;
emsff->report->field[0]->value[4] = 0x00;
emsff->report->field[0]->value[5] = 0x00;
emsff->report->field[0]->value[6] = 0x00;
hid_hw_request(hid, emsff->report, HID_REQ_SET_REPORT);
hid_info(hid, "force feedback for EMS based devices by Ignaz Forster <[email protected]>\n");
return 0;
}
static int ems_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;
}
ret = emsff_init(hdev);
if (ret) {
dev_err(&hdev->dev, "force feedback init failed\n");
hid_hw_stop(hdev);
goto err;
}
return 0;
err:
return ret;
}
static const struct hid_device_id ems_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
{ }
};
MODULE_DEVICE_TABLE(hid, ems_devices);
static struct hid_driver ems_driver = {
.name = "hkems",
.id_table = ems_devices,
.probe = ems_probe,
};
module_hid_driver(ems_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-emsff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some cypress "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/input.h>
#include <linux/module.h>
#include "hid-ids.h"
#define CP_RDESC_SWAPPED_MIN_MAX 0x01
#define CP_2WHEEL_MOUSE_HACK 0x02
#define CP_2WHEEL_MOUSE_HACK_ON 0x04
#define VA_INVAL_LOGICAL_BOUNDARY 0x08
/*
* Some USB barcode readers from cypress have usage min and usage max in
* the wrong order
*/
static __u8 *cp_rdesc_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
unsigned int i;
if (*rsize < 4)
return rdesc;
for (i = 0; i < *rsize - 4; i++)
if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
rdesc[i] = 0x19;
rdesc[i + 2] = 0x29;
swap(rdesc[i + 3], rdesc[i + 1]);
}
return rdesc;
}
static __u8 *va_logical_boundary_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
/*
* Varmilo VA104M (with VID Cypress and device ID 07B1) incorrectly
* reports Logical Minimum of its Consumer Control device as 572
* (0x02 0x3c). Fix this by setting its Logical Minimum to zero.
*/
if (*rsize == 25 &&
rdesc[0] == 0x05 && rdesc[1] == 0x0c &&
rdesc[2] == 0x09 && rdesc[3] == 0x01 &&
rdesc[6] == 0x19 && rdesc[7] == 0x00 &&
rdesc[11] == 0x16 && rdesc[12] == 0x3c && rdesc[13] == 0x02) {
hid_info(hdev,
"fixing up varmilo VA104M consumer control report descriptor\n");
rdesc[12] = 0x00;
rdesc[13] = 0x00;
}
return rdesc;
}
static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if (quirks & CP_RDESC_SWAPPED_MIN_MAX)
rdesc = cp_rdesc_fixup(hdev, rdesc, rsize);
if (quirks & VA_INVAL_LOGICAL_BOUNDARY)
rdesc = va_logical_boundary_fixup(hdev, rdesc, rsize);
return rdesc;
}
static int cp_input_mapped(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 & CP_2WHEEL_MOUSE_HACK))
return 0;
if (usage->type == EV_REL && usage->code == REL_WHEEL)
set_bit(REL_HWHEEL, *bit);
if (usage->hid == 0x00090005)
return -1;
return 0;
}
static int cp_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type || !(quirks & CP_2WHEEL_MOUSE_HACK))
return 0;
if (usage->hid == 0x00090005) {
if (value)
quirks |= CP_2WHEEL_MOUSE_HACK_ON;
else
quirks &= ~CP_2WHEEL_MOUSE_HACK_ON;
hid_set_drvdata(hdev, (void *)quirks);
return 1;
}
if (usage->code == REL_WHEEL && (quirks & CP_2WHEEL_MOUSE_HACK_ON)) {
struct input_dev *input = field->hidinput->input;
input_event(input, usage->type, REL_HWHEEL, value);
return 1;
}
return 0;
}
static int cp_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);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
return 0;
err_free:
return ret;
}
static const struct hid_device_id cp_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1),
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2),
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3),
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4),
.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE),
.driver_data = CP_2WHEEL_MOUSE_HACK },
{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_VARMILO_VA104M_07B1),
.driver_data = VA_INVAL_LOGICAL_BOUNDARY },
{ }
};
MODULE_DEVICE_TABLE(hid, cp_devices);
static struct hid_driver cp_driver = {
.name = "cypress",
.id_table = cp_devices,
.report_fixup = cp_report_fixup,
.input_mapped = cp_input_mapped,
.event = cp_event,
.probe = cp_probe,
};
module_hid_driver(cp_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-cypress.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for Zeroplus based devices
*
* Copyright (c) 2005, 2006 Anssi Hannula <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_ZEROPLUS_FF
struct zpff_device {
struct hid_report *report;
};
static int zpff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct zpff_device *zpff = data;
int left, right;
/*
* The following is specified the other way around in the Zeroplus
* datasheet but the order below is correct for the XFX Executioner;
* however it is possible that the XFX Executioner is an exception
*/
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x\n", left, right);
left = left * 0x7f / 0xffff;
right = right * 0x7f / 0xffff;
zpff->report->field[2]->value[0] = left;
zpff->report->field[3]->value[0] = right;
dbg_hid("running with 0x%02x 0x%02x\n", left, right);
hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT);
return 0;
}
static int zpff_init(struct hid_device *hid)
{
struct zpff_device *zpff;
struct hid_report *report;
struct hid_input *hidinput;
struct input_dev *dev;
int i, 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;
for (i = 0; i < 4; i++) {
report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1);
if (!report)
return -ENODEV;
}
zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
if (!zpff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, zpff, zpff_play);
if (error) {
kfree(zpff);
return error;
}
zpff->report = report;
zpff->report->field[0]->value[0] = 0x00;
zpff->report->field[1]->value[0] = 0x02;
zpff->report->field[2]->value[0] = 0x00;
zpff->report->field[3]->value[0] = 0x00;
hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT);
hid_info(hid, "force feedback for Zeroplus based devices by Anssi Hannula <[email protected]>\n");
return 0;
}
#else
static inline int zpff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int zp_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;
}
zpff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id zp_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
{ }
};
MODULE_DEVICE_TABLE(hid, zp_devices);
static struct hid_driver zp_driver = {
.name = "zeroplus",
.id_table = zp_devices,
.probe = zp_probe,
};
module_hid_driver(zp_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-zpff.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/input.h>
#include "hid-ids.h"
#include <linux/fb.h>
#include <linux/vmalloc.h>
#include <linux/completion.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/string.h>
#include "hid-picolcd.h"
/* Input device
*
* The PicoLCD has an IR receiver header, a built-in keypad with 5 keys
* and header for 4x4 key matrix. The built-in keys are part of the matrix.
*/
static const unsigned short def_keymap[PICOLCD_KEYS] = {
KEY_RESERVED, /* none */
KEY_BACK, /* col 4 + row 1 */
KEY_HOMEPAGE, /* col 3 + row 1 */
KEY_RESERVED, /* col 2 + row 1 */
KEY_RESERVED, /* col 1 + row 1 */
KEY_SCROLLUP, /* col 4 + row 2 */
KEY_OK, /* col 3 + row 2 */
KEY_SCROLLDOWN, /* col 2 + row 2 */
KEY_RESERVED, /* col 1 + row 2 */
KEY_RESERVED, /* col 4 + row 3 */
KEY_RESERVED, /* col 3 + row 3 */
KEY_RESERVED, /* col 2 + row 3 */
KEY_RESERVED, /* col 1 + row 3 */
KEY_RESERVED, /* col 4 + row 4 */
KEY_RESERVED, /* col 3 + row 4 */
KEY_RESERVED, /* col 2 + row 4 */
KEY_RESERVED, /* col 1 + row 4 */
};
/* Find a given report */
struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir)
{
struct list_head *feature_report_list = &hdev->report_enum[dir].report_list;
struct hid_report *report = NULL;
list_for_each_entry(report, feature_report_list, list) {
if (report->id == id)
return report;
}
hid_warn(hdev, "No report with id 0x%x found\n", id);
return NULL;
}
/* Submit a report and wait for a reply from device - if device fades away
* or does not respond in time, return NULL */
struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
int report_id, const u8 *raw_data, int size)
{
struct picolcd_data *data = hid_get_drvdata(hdev);
struct picolcd_pending *work;
struct hid_report *report = picolcd_out_report(report_id, hdev);
unsigned long flags;
int i, j, k;
if (!report || !data)
return NULL;
if (data->status & PICOLCD_FAILED)
return NULL;
work = kzalloc(sizeof(*work), GFP_KERNEL);
if (!work)
return NULL;
init_completion(&work->ready);
work->out_report = report;
work->in_report = NULL;
work->raw_size = 0;
mutex_lock(&data->mutex);
spin_lock_irqsave(&data->lock, flags);
for (i = k = 0; i < report->maxfield; i++)
for (j = 0; j < report->field[i]->report_count; j++) {
hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0);
k++;
}
if (data->status & PICOLCD_FAILED) {
kfree(work);
work = NULL;
} else {
data->pending = work;
hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
wait_for_completion_interruptible_timeout(&work->ready, HZ*2);
spin_lock_irqsave(&data->lock, flags);
data->pending = NULL;
}
spin_unlock_irqrestore(&data->lock, flags);
mutex_unlock(&data->mutex);
return work;
}
/*
* input class device
*/
static int picolcd_raw_keypad(struct picolcd_data *data,
struct hid_report *report, u8 *raw_data, int size)
{
/*
* Keypad event
* First and second data bytes list currently pressed keys,
* 0x00 means no key and at most 2 keys may be pressed at same time
*/
int i, j;
/* determine newly pressed keys */
for (i = 0; i < size; i++) {
unsigned int key_code;
if (raw_data[i] == 0)
continue;
for (j = 0; j < sizeof(data->pressed_keys); j++)
if (data->pressed_keys[j] == raw_data[i])
goto key_already_down;
for (j = 0; j < sizeof(data->pressed_keys); j++)
if (data->pressed_keys[j] == 0) {
data->pressed_keys[j] = raw_data[i];
break;
}
input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]);
if (raw_data[i] < PICOLCD_KEYS)
key_code = data->keycode[raw_data[i]];
else
key_code = KEY_UNKNOWN;
if (key_code != KEY_UNKNOWN) {
dbg_hid(PICOLCD_NAME " got key press for %u:%d",
raw_data[i], key_code);
input_report_key(data->input_keys, key_code, 1);
}
input_sync(data->input_keys);
key_already_down:
continue;
}
/* determine newly released keys */
for (j = 0; j < sizeof(data->pressed_keys); j++) {
unsigned int key_code;
if (data->pressed_keys[j] == 0)
continue;
for (i = 0; i < size; i++)
if (data->pressed_keys[j] == raw_data[i])
goto key_still_down;
input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]);
if (data->pressed_keys[j] < PICOLCD_KEYS)
key_code = data->keycode[data->pressed_keys[j]];
else
key_code = KEY_UNKNOWN;
if (key_code != KEY_UNKNOWN) {
dbg_hid(PICOLCD_NAME " got key release for %u:%d",
data->pressed_keys[j], key_code);
input_report_key(data->input_keys, key_code, 0);
}
input_sync(data->input_keys);
data->pressed_keys[j] = 0;
key_still_down:
continue;
}
return 1;
}
static int picolcd_check_version(struct hid_device *hdev)
{
struct picolcd_data *data = hid_get_drvdata(hdev);
struct picolcd_pending *verinfo;
int ret = 0;
if (!data)
return -ENODEV;
verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0);
if (!verinfo) {
hid_err(hdev, "no version response from PicoLCD\n");
return -ENODEV;
}
if (verinfo->raw_size == 2) {
data->version[0] = verinfo->raw_data[1];
data->version[1] = verinfo->raw_data[0];
if (data->status & PICOLCD_BOOTLOADER) {
hid_info(hdev, "PicoLCD, bootloader version %d.%d\n",
verinfo->raw_data[1], verinfo->raw_data[0]);
} else {
hid_info(hdev, "PicoLCD, firmware version %d.%d\n",
verinfo->raw_data[1], verinfo->raw_data[0]);
}
} else {
hid_err(hdev, "confused, got unexpected version response from PicoLCD\n");
ret = -EINVAL;
}
kfree(verinfo);
return ret;
}
/*
* Reset our device and wait for answer to VERSION request
*/
int picolcd_reset(struct hid_device *hdev)
{
struct picolcd_data *data = hid_get_drvdata(hdev);
struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev);
unsigned long flags;
int error;
if (!data || !report || report->maxfield != 1)
return -ENODEV;
spin_lock_irqsave(&data->lock, flags);
if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
data->status |= PICOLCD_BOOTLOADER;
/* perform the reset */
hid_set_field(report->field[0], 0, 1);
if (data->status & PICOLCD_FAILED) {
spin_unlock_irqrestore(&data->lock, flags);
return -ENODEV;
}
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
error = picolcd_check_version(hdev);
if (error)
return error;
picolcd_resume_lcd(data);
picolcd_resume_backlight(data);
picolcd_fb_refresh(data);
picolcd_leds_set(data);
return 0;
}
/*
* The "operation_mode" sysfs attribute
*/
static ssize_t picolcd_operation_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct picolcd_data *data = dev_get_drvdata(dev);
if (data->status & PICOLCD_BOOTLOADER)
return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n");
else
return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n");
}
static ssize_t picolcd_operation_mode_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct picolcd_data *data = dev_get_drvdata(dev);
struct hid_report *report = NULL;
int timeout = data->opmode_delay;
unsigned long flags;
if (sysfs_streq(buf, "lcd")) {
if (data->status & PICOLCD_BOOTLOADER)
report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev);
} else if (sysfs_streq(buf, "bootloader")) {
if (!(data->status & PICOLCD_BOOTLOADER))
report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev);
} else {
return -EINVAL;
}
if (!report || report->maxfield != 1)
return -EINVAL;
spin_lock_irqsave(&data->lock, flags);
hid_set_field(report->field[0], 0, timeout & 0xff);
hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff);
hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
return count;
}
static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show,
picolcd_operation_mode_store);
/*
* The "operation_mode_delay" sysfs attribute
*/
static ssize_t picolcd_operation_mode_delay_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct picolcd_data *data = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay);
}
static ssize_t picolcd_operation_mode_delay_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct picolcd_data *data = dev_get_drvdata(dev);
unsigned u;
if (sscanf(buf, "%u", &u) != 1)
return -EINVAL;
if (u > 30000)
return -EINVAL;
else
data->opmode_delay = u;
return count;
}
static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show,
picolcd_operation_mode_delay_store);
/*
* Handle raw report as sent by device
*/
static int picolcd_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
struct picolcd_data *data = hid_get_drvdata(hdev);
unsigned long flags;
if (!data)
return 1;
if (size > 64) {
hid_warn(hdev, "invalid size value (%d) for picolcd raw event (%d)\n",
size, report->id);
return 0;
}
if (report->id == REPORT_KEY_STATE) {
if (data->input_keys)
picolcd_raw_keypad(data, report, raw_data+1, size-1);
} else if (report->id == REPORT_IR_DATA) {
picolcd_raw_cir(data, report, raw_data+1, size-1);
} else {
spin_lock_irqsave(&data->lock, flags);
/*
* We let the caller of picolcd_send_and_wait() check if the
* report we got is one of the expected ones or not.
*/
if (data->pending) {
memcpy(data->pending->raw_data, raw_data+1, size-1);
data->pending->raw_size = size-1;
data->pending->in_report = report;
complete(&data->pending->ready);
}
spin_unlock_irqrestore(&data->lock, flags);
}
picolcd_debug_raw_event(data, hdev, report, raw_data, size);
return 1;
}
#ifdef CONFIG_PM
static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
{
if (PMSG_IS_AUTO(message))
return 0;
picolcd_suspend_backlight(hid_get_drvdata(hdev));
dbg_hid(PICOLCD_NAME " device ready for suspend\n");
return 0;
}
static int picolcd_resume(struct hid_device *hdev)
{
int ret;
ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
if (ret)
dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
return 0;
}
static int picolcd_reset_resume(struct hid_device *hdev)
{
int ret;
ret = picolcd_reset(hdev);
if (ret)
dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
if (ret)
dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
if (ret)
dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
if (ret)
dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
picolcd_leds_set(hid_get_drvdata(hdev));
return 0;
}
#endif
/* initialize keypad input device */
static int picolcd_init_keys(struct picolcd_data *data,
struct hid_report *report)
{
struct hid_device *hdev = data->hdev;
struct input_dev *idev;
int error, i;
if (!report)
return -ENODEV;
if (report->maxfield != 1 || report->field[0]->report_count != 2 ||
report->field[0]->report_size != 8) {
hid_err(hdev, "unsupported KEY_STATE report\n");
return -EINVAL;
}
idev = input_allocate_device();
if (idev == NULL) {
hid_err(hdev, "failed to allocate input device\n");
return -ENOMEM;
}
input_set_drvdata(idev, hdev);
memcpy(data->keycode, def_keymap, sizeof(def_keymap));
idev->name = hdev->name;
idev->phys = hdev->phys;
idev->uniq = hdev->uniq;
idev->id.bustype = hdev->bus;
idev->id.vendor = hdev->vendor;
idev->id.product = hdev->product;
idev->id.version = hdev->version;
idev->dev.parent = &hdev->dev;
idev->keycode = &data->keycode;
idev->keycodemax = PICOLCD_KEYS;
idev->keycodesize = sizeof(data->keycode[0]);
input_set_capability(idev, EV_MSC, MSC_SCAN);
set_bit(EV_REP, idev->evbit);
for (i = 0; i < PICOLCD_KEYS; i++)
input_set_capability(idev, EV_KEY, data->keycode[i]);
error = input_register_device(idev);
if (error) {
hid_err(hdev, "error registering the input device\n");
input_free_device(idev);
return error;
}
data->input_keys = idev;
return 0;
}
static void picolcd_exit_keys(struct picolcd_data *data)
{
struct input_dev *idev = data->input_keys;
data->input_keys = NULL;
if (idev)
input_unregister_device(idev);
}
static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data)
{
int error;
/* Setup keypad input device */
error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev));
if (error)
goto err;
/* Setup CIR input device */
error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev));
if (error)
goto err;
/* Set up the framebuffer device */
error = picolcd_init_framebuffer(data);
if (error)
goto err;
/* Setup lcd class device */
error = picolcd_init_lcd(data, picolcd_out_report(REPORT_CONTRAST, hdev));
if (error)
goto err;
/* Setup backlight class device */
error = picolcd_init_backlight(data, picolcd_out_report(REPORT_BRIGHTNESS, hdev));
if (error)
goto err;
/* Setup the LED class devices */
error = picolcd_init_leds(data, picolcd_out_report(REPORT_LED_STATE, hdev));
if (error)
goto err;
picolcd_init_devfs(data, picolcd_out_report(REPORT_EE_READ, hdev),
picolcd_out_report(REPORT_EE_WRITE, hdev),
picolcd_out_report(REPORT_READ_MEMORY, hdev),
picolcd_out_report(REPORT_WRITE_MEMORY, hdev),
picolcd_out_report(REPORT_RESET, hdev));
return 0;
err:
picolcd_exit_leds(data);
picolcd_exit_backlight(data);
picolcd_exit_lcd(data);
picolcd_exit_framebuffer(data);
picolcd_exit_cir(data);
picolcd_exit_keys(data);
return error;
}
static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data)
{
picolcd_init_devfs(data, NULL, NULL,
picolcd_out_report(REPORT_BL_READ_MEMORY, hdev),
picolcd_out_report(REPORT_BL_WRITE_MEMORY, hdev), NULL);
return 0;
}
static int picolcd_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct picolcd_data *data;
int error = -ENOMEM;
dbg_hid(PICOLCD_NAME " hardware probe...\n");
/*
* Let's allocate the picolcd data structure, set some reasonable
* defaults, and associate it with the device
*/
data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL);
if (data == NULL) {
hid_err(hdev, "can't allocate space for Minibox PicoLCD device data\n");
return -ENOMEM;
}
spin_lock_init(&data->lock);
mutex_init(&data->mutex);
data->hdev = hdev;
data->opmode_delay = 5000;
if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER)
data->status |= PICOLCD_BOOTLOADER;
hid_set_drvdata(hdev, data);
/* Parse the device reports and start it up */
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "device report parse failed\n");
goto err_cleanup_data;
}
error = hid_hw_start(hdev, 0);
if (error) {
hid_err(hdev, "hardware start failed\n");
goto err_cleanup_data;
}
error = hid_hw_open(hdev);
if (error) {
hid_err(hdev, "failed to open input interrupt pipe for key and IR events\n");
goto err_cleanup_hid_hw;
}
error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay);
if (error) {
hid_err(hdev, "failed to create sysfs attributes\n");
goto err_cleanup_hid_ll;
}
error = device_create_file(&hdev->dev, &dev_attr_operation_mode);
if (error) {
hid_err(hdev, "failed to create sysfs attributes\n");
goto err_cleanup_sysfs1;
}
if (data->status & PICOLCD_BOOTLOADER)
error = picolcd_probe_bootloader(hdev, data);
else
error = picolcd_probe_lcd(hdev, data);
if (error)
goto err_cleanup_sysfs2;
dbg_hid(PICOLCD_NAME " activated and initialized\n");
return 0;
err_cleanup_sysfs2:
device_remove_file(&hdev->dev, &dev_attr_operation_mode);
err_cleanup_sysfs1:
device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
err_cleanup_hid_ll:
hid_hw_close(hdev);
err_cleanup_hid_hw:
hid_hw_stop(hdev);
err_cleanup_data:
kfree(data);
return error;
}
static void picolcd_remove(struct hid_device *hdev)
{
struct picolcd_data *data = hid_get_drvdata(hdev);
unsigned long flags;
dbg_hid(PICOLCD_NAME " hardware remove...\n");
spin_lock_irqsave(&data->lock, flags);
data->status |= PICOLCD_FAILED;
spin_unlock_irqrestore(&data->lock, flags);
picolcd_exit_devfs(data);
device_remove_file(&hdev->dev, &dev_attr_operation_mode);
device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay);
hid_hw_close(hdev);
hid_hw_stop(hdev);
/* Shortcut potential pending reply that will never arrive */
spin_lock_irqsave(&data->lock, flags);
if (data->pending)
complete(&data->pending->ready);
spin_unlock_irqrestore(&data->lock, flags);
/* Cleanup LED */
picolcd_exit_leds(data);
/* Clean up the framebuffer */
picolcd_exit_backlight(data);
picolcd_exit_lcd(data);
picolcd_exit_framebuffer(data);
/* Cleanup input */
picolcd_exit_cir(data);
picolcd_exit_keys(data);
mutex_destroy(&data->mutex);
/* Finally, clean up the picolcd data itself */
kfree(data);
}
static const struct hid_device_id picolcd_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
{ }
};
MODULE_DEVICE_TABLE(hid, picolcd_devices);
static struct hid_driver picolcd_driver = {
.name = "hid-picolcd",
.id_table = picolcd_devices,
.probe = picolcd_probe,
.remove = picolcd_remove,
.raw_event = picolcd_raw_event,
#ifdef CONFIG_PM
.suspend = picolcd_suspend,
.resume = picolcd_resume,
.reset_resume = picolcd_reset_resume,
#endif
};
module_hid_driver(picolcd_driver);
MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-picolcd_core.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* hid-cp2112.c - Silicon Labs HID USB to SMBus master bridge
* Copyright (c) 2013,2014 Uplogix, Inc.
* David Barksdale <[email protected]>
*/
/*
* The Silicon Labs CP2112 chip is a USB HID device which provides an
* SMBus controller for talking to slave devices and 8 GPIO pins. The
* host communicates with the CP2112 via raw HID reports.
*
* Data Sheet:
* https://www.silabs.com/Support%20Documents/TechnicalDocs/CP2112.pdf
* Programming Interface Specification:
* https://www.silabs.com/documents/public/application-notes/an495-cp2112-interface-specification.pdf
*/
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/hid.h>
#include <linux/hidraw.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/nls.h>
#include <linux/string_choices.h>
#include <linux/usb/ch9.h>
#include "hid-ids.h"
#define CP2112_REPORT_MAX_LENGTH 64
#define CP2112_GPIO_CONFIG_LENGTH 5
#define CP2112_GPIO_GET_LENGTH 2
#define CP2112_GPIO_SET_LENGTH 3
#define CP2112_GPIO_MAX_GPIO 8
#define CP2112_GPIO_ALL_GPIO_MASK GENMASK(7, 0)
enum {
CP2112_GPIO_CONFIG = 0x02,
CP2112_GPIO_GET = 0x03,
CP2112_GPIO_SET = 0x04,
CP2112_GET_VERSION_INFO = 0x05,
CP2112_SMBUS_CONFIG = 0x06,
CP2112_DATA_READ_REQUEST = 0x10,
CP2112_DATA_WRITE_READ_REQUEST = 0x11,
CP2112_DATA_READ_FORCE_SEND = 0x12,
CP2112_DATA_READ_RESPONSE = 0x13,
CP2112_DATA_WRITE_REQUEST = 0x14,
CP2112_TRANSFER_STATUS_REQUEST = 0x15,
CP2112_TRANSFER_STATUS_RESPONSE = 0x16,
CP2112_CANCEL_TRANSFER = 0x17,
CP2112_LOCK_BYTE = 0x20,
CP2112_USB_CONFIG = 0x21,
CP2112_MANUFACTURER_STRING = 0x22,
CP2112_PRODUCT_STRING = 0x23,
CP2112_SERIAL_STRING = 0x24,
};
enum {
STATUS0_IDLE = 0x00,
STATUS0_BUSY = 0x01,
STATUS0_COMPLETE = 0x02,
STATUS0_ERROR = 0x03,
};
enum {
STATUS1_TIMEOUT_NACK = 0x00,
STATUS1_TIMEOUT_BUS = 0x01,
STATUS1_ARBITRATION_LOST = 0x02,
STATUS1_READ_INCOMPLETE = 0x03,
STATUS1_WRITE_INCOMPLETE = 0x04,
STATUS1_SUCCESS = 0x05,
};
struct cp2112_smbus_config_report {
u8 report; /* CP2112_SMBUS_CONFIG */
__be32 clock_speed; /* Hz */
u8 device_address; /* Stored in the upper 7 bits */
u8 auto_send_read; /* 1 = enabled, 0 = disabled */
__be16 write_timeout; /* ms, 0 = no timeout */
__be16 read_timeout; /* ms, 0 = no timeout */
u8 scl_low_timeout; /* 1 = enabled, 0 = disabled */
__be16 retry_time; /* # of retries, 0 = no limit */
} __packed;
struct cp2112_usb_config_report {
u8 report; /* CP2112_USB_CONFIG */
__le16 vid; /* Vendor ID */
__le16 pid; /* Product ID */
u8 max_power; /* Power requested in 2mA units */
u8 power_mode; /* 0x00 = bus powered
0x01 = self powered & regulator off
0x02 = self powered & regulator on */
u8 release_major;
u8 release_minor;
u8 mask; /* What fields to program */
} __packed;
struct cp2112_read_req_report {
u8 report; /* CP2112_DATA_READ_REQUEST */
u8 slave_address;
__be16 length;
} __packed;
struct cp2112_write_read_req_report {
u8 report; /* CP2112_DATA_WRITE_READ_REQUEST */
u8 slave_address;
__be16 length;
u8 target_address_length;
u8 target_address[16];
} __packed;
struct cp2112_write_req_report {
u8 report; /* CP2112_DATA_WRITE_REQUEST */
u8 slave_address;
u8 length;
u8 data[61];
} __packed;
struct cp2112_force_read_report {
u8 report; /* CP2112_DATA_READ_FORCE_SEND */
__be16 length;
} __packed;
struct cp2112_xfer_status_report {
u8 report; /* CP2112_TRANSFER_STATUS_RESPONSE */
u8 status0; /* STATUS0_* */
u8 status1; /* STATUS1_* */
__be16 retries;
__be16 length;
} __packed;
struct cp2112_string_report {
u8 dummy; /* force .string to be aligned */
struct_group_attr(contents, __packed,
u8 report; /* CP2112_*_STRING */
u8 length; /* length in bytes of everything after .report */
u8 type; /* USB_DT_STRING */
wchar_t string[30]; /* UTF16_LITTLE_ENDIAN string */
);
} __packed;
/* Number of times to request transfer status before giving up waiting for a
transfer to complete. This may need to be changed if SMBUS clock, retries,
or read/write/scl_low timeout settings are changed. */
static const int XFER_STATUS_RETRIES = 10;
/* Time in ms to wait for a CP2112_DATA_READ_RESPONSE or
CP2112_TRANSFER_STATUS_RESPONSE. */
static const int RESPONSE_TIMEOUT = 50;
static const struct hid_device_id cp2112_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
{ }
};
MODULE_DEVICE_TABLE(hid, cp2112_devices);
struct cp2112_device {
struct i2c_adapter adap;
struct hid_device *hdev;
wait_queue_head_t wait;
u8 read_data[61];
u8 read_length;
u8 hwversion;
int xfer_status;
atomic_t read_avail;
atomic_t xfer_avail;
struct gpio_chip gc;
u8 *in_out_buffer;
struct mutex lock;
bool gpio_poll;
struct delayed_work gpio_poll_worker;
unsigned long irq_mask;
u8 gpio_prev_state;
};
static int gpio_push_pull = CP2112_GPIO_ALL_GPIO_MASK;
module_param(gpio_push_pull, int, 0644);
MODULE_PARM_DESC(gpio_push_pull, "GPIO push-pull configuration bitmask");
static int cp2112_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 *buf = dev->in_out_buffer;
int ret;
mutex_lock(&dev->lock);
ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret != CP2112_GPIO_CONFIG_LENGTH) {
hid_err(hdev, "error requesting GPIO config: %d\n", ret);
if (ret >= 0)
ret = -EIO;
goto exit;
}
buf[1] &= ~BIT(offset);
buf[2] = gpio_push_pull;
ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret != CP2112_GPIO_CONFIG_LENGTH) {
hid_err(hdev, "error setting GPIO config: %d\n", ret);
if (ret >= 0)
ret = -EIO;
goto exit;
}
ret = 0;
exit:
mutex_unlock(&dev->lock);
return ret;
}
static void cp2112_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 *buf = dev->in_out_buffer;
int ret;
mutex_lock(&dev->lock);
buf[0] = CP2112_GPIO_SET;
buf[1] = value ? CP2112_GPIO_ALL_GPIO_MASK : 0;
buf[2] = BIT(offset);
ret = hid_hw_raw_request(hdev, CP2112_GPIO_SET, buf,
CP2112_GPIO_SET_LENGTH, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret < 0)
hid_err(hdev, "error setting GPIO values: %d\n", ret);
mutex_unlock(&dev->lock);
}
static int cp2112_gpio_get_all(struct gpio_chip *chip)
{
struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 *buf = dev->in_out_buffer;
int ret;
mutex_lock(&dev->lock);
ret = hid_hw_raw_request(hdev, CP2112_GPIO_GET, buf,
CP2112_GPIO_GET_LENGTH, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret != CP2112_GPIO_GET_LENGTH) {
hid_err(hdev, "error requesting GPIO values: %d\n", ret);
ret = ret < 0 ? ret : -EIO;
goto exit;
}
ret = buf[1];
exit:
mutex_unlock(&dev->lock);
return ret;
}
static int cp2112_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
int ret;
ret = cp2112_gpio_get_all(chip);
if (ret < 0)
return ret;
return (ret >> offset) & 1;
}
static int cp2112_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
struct cp2112_device *dev = gpiochip_get_data(chip);
struct hid_device *hdev = dev->hdev;
u8 *buf = dev->in_out_buffer;
int ret;
mutex_lock(&dev->lock);
ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret != CP2112_GPIO_CONFIG_LENGTH) {
hid_err(hdev, "error requesting GPIO config: %d\n", ret);
goto fail;
}
buf[1] |= 1 << offset;
buf[2] = gpio_push_pull;
ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
if (ret < 0) {
hid_err(hdev, "error setting GPIO config: %d\n", ret);
goto fail;
}
mutex_unlock(&dev->lock);
/*
* Set gpio value when output direction is already set,
* as specified in AN495, Rev. 0.2, cpt. 4.4
*/
cp2112_gpio_set(chip, offset, value);
return 0;
fail:
mutex_unlock(&dev->lock);
return ret < 0 ? ret : -EIO;
}
static int cp2112_hid_get(struct hid_device *hdev, unsigned char report_number,
u8 *data, size_t count, unsigned char report_type)
{
u8 *buf;
int ret;
buf = kmalloc(count, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, report_number, buf, count,
report_type, HID_REQ_GET_REPORT);
memcpy(data, buf, count);
kfree(buf);
return ret;
}
static int cp2112_hid_output(struct hid_device *hdev, u8 *data, size_t count,
unsigned char report_type)
{
u8 *buf;
int ret;
buf = kmemdup(data, count, GFP_KERNEL);
if (!buf)
return -ENOMEM;
if (report_type == HID_OUTPUT_REPORT)
ret = hid_hw_output_report(hdev, buf, count);
else
ret = hid_hw_raw_request(hdev, buf[0], buf, count, report_type,
HID_REQ_SET_REPORT);
kfree(buf);
return ret;
}
static int cp2112_wait(struct cp2112_device *dev, atomic_t *avail)
{
int ret = 0;
/* We have sent either a CP2112_TRANSFER_STATUS_REQUEST or a
* CP2112_DATA_READ_FORCE_SEND and we are waiting for the response to
* come in cp2112_raw_event or timeout. There will only be one of these
* in flight at any one time. The timeout is extremely large and is a
* last resort if the CP2112 has died. If we do timeout we don't expect
* to receive the response which would cause data races, it's not like
* we can do anything about it anyway.
*/
ret = wait_event_interruptible_timeout(dev->wait,
atomic_read(avail), msecs_to_jiffies(RESPONSE_TIMEOUT));
if (-ERESTARTSYS == ret)
return ret;
if (!ret)
return -ETIMEDOUT;
atomic_set(avail, 0);
return 0;
}
static int cp2112_xfer_status(struct cp2112_device *dev)
{
struct hid_device *hdev = dev->hdev;
u8 buf[2];
int ret;
buf[0] = CP2112_TRANSFER_STATUS_REQUEST;
buf[1] = 0x01;
atomic_set(&dev->xfer_avail, 0);
ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error requesting status: %d\n", ret);
return ret;
}
ret = cp2112_wait(dev, &dev->xfer_avail);
if (ret)
return ret;
return dev->xfer_status;
}
static int cp2112_read(struct cp2112_device *dev, u8 *data, size_t size)
{
struct hid_device *hdev = dev->hdev;
struct cp2112_force_read_report report;
int ret;
if (size > sizeof(dev->read_data))
size = sizeof(dev->read_data);
report.report = CP2112_DATA_READ_FORCE_SEND;
report.length = cpu_to_be16(size);
atomic_set(&dev->read_avail, 0);
ret = cp2112_hid_output(hdev, &report.report, sizeof(report),
HID_OUTPUT_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error requesting data: %d\n", ret);
return ret;
}
ret = cp2112_wait(dev, &dev->read_avail);
if (ret)
return ret;
hid_dbg(hdev, "read %d of %zd bytes requested\n",
dev->read_length, size);
if (size > dev->read_length)
size = dev->read_length;
memcpy(data, dev->read_data, size);
return dev->read_length;
}
static int cp2112_read_req(void *buf, u8 slave_address, u16 length)
{
struct cp2112_read_req_report *report = buf;
if (length < 1 || length > 512)
return -EINVAL;
report->report = CP2112_DATA_READ_REQUEST;
report->slave_address = slave_address << 1;
report->length = cpu_to_be16(length);
return sizeof(*report);
}
static int cp2112_write_read_req(void *buf, u8 slave_address, u16 length,
u8 command, u8 *data, u8 data_length)
{
struct cp2112_write_read_req_report *report = buf;
if (length < 1 || length > 512
|| data_length > sizeof(report->target_address) - 1)
return -EINVAL;
report->report = CP2112_DATA_WRITE_READ_REQUEST;
report->slave_address = slave_address << 1;
report->length = cpu_to_be16(length);
report->target_address_length = data_length + 1;
report->target_address[0] = command;
memcpy(&report->target_address[1], data, data_length);
return data_length + 6;
}
static int cp2112_write_req(void *buf, u8 slave_address, u8 command, u8 *data,
u8 data_length)
{
struct cp2112_write_req_report *report = buf;
if (data_length > sizeof(report->data) - 1)
return -EINVAL;
report->report = CP2112_DATA_WRITE_REQUEST;
report->slave_address = slave_address << 1;
report->length = data_length + 1;
report->data[0] = command;
memcpy(&report->data[1], data, data_length);
return data_length + 4;
}
static int cp2112_i2c_write_req(void *buf, u8 slave_address, u8 *data,
u8 data_length)
{
struct cp2112_write_req_report *report = buf;
if (data_length > sizeof(report->data))
return -EINVAL;
report->report = CP2112_DATA_WRITE_REQUEST;
report->slave_address = slave_address << 1;
report->length = data_length;
memcpy(report->data, data, data_length);
return data_length + 3;
}
static int cp2112_i2c_write_read_req(void *buf, u8 slave_address,
u8 *addr, int addr_length,
int read_length)
{
struct cp2112_write_read_req_report *report = buf;
if (read_length < 1 || read_length > 512 ||
addr_length > sizeof(report->target_address))
return -EINVAL;
report->report = CP2112_DATA_WRITE_READ_REQUEST;
report->slave_address = slave_address << 1;
report->length = cpu_to_be16(read_length);
report->target_address_length = addr_length;
memcpy(report->target_address, addr, addr_length);
return addr_length + 5;
}
static int cp2112_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
int num)
{
struct cp2112_device *dev = (struct cp2112_device *)adap->algo_data;
struct hid_device *hdev = dev->hdev;
u8 buf[64];
ssize_t count;
ssize_t read_length = 0;
u8 *read_buf = NULL;
unsigned int retries;
int ret;
hid_dbg(hdev, "I2C %d messages\n", num);
if (num == 1) {
hid_dbg(hdev, "I2C %s %#04x len %d\n",
str_read_write(msgs->flags & I2C_M_RD), msgs->addr, msgs->len);
if (msgs->flags & I2C_M_RD) {
read_length = msgs->len;
read_buf = msgs->buf;
count = cp2112_read_req(buf, msgs->addr, msgs->len);
} else {
count = cp2112_i2c_write_req(buf, msgs->addr,
msgs->buf, msgs->len);
}
if (count < 0)
return count;
} else if (dev->hwversion > 1 && /* no repeated start in rev 1 */
num == 2 &&
msgs[0].addr == msgs[1].addr &&
!(msgs[0].flags & I2C_M_RD) && (msgs[1].flags & I2C_M_RD)) {
hid_dbg(hdev, "I2C write-read %#04x wlen %d rlen %d\n",
msgs[0].addr, msgs[0].len, msgs[1].len);
read_length = msgs[1].len;
read_buf = msgs[1].buf;
count = cp2112_i2c_write_read_req(buf, msgs[0].addr,
msgs[0].buf, msgs[0].len, msgs[1].len);
if (count < 0)
return count;
} else {
hid_err(hdev,
"Multi-message I2C transactions not supported\n");
return -EOPNOTSUPP;
}
ret = hid_hw_power(hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(hdev, "power management error: %d\n", ret);
return ret;
}
ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error starting transaction: %d\n", ret);
goto power_normal;
}
for (retries = 0; retries < XFER_STATUS_RETRIES; ++retries) {
ret = cp2112_xfer_status(dev);
if (-EBUSY == ret)
continue;
if (ret < 0)
goto power_normal;
break;
}
if (XFER_STATUS_RETRIES <= retries) {
hid_warn(hdev, "Transfer timed out, cancelling.\n");
buf[0] = CP2112_CANCEL_TRANSFER;
buf[1] = 0x01;
ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);
if (ret < 0)
hid_warn(hdev, "Error cancelling transaction: %d\n",
ret);
ret = -ETIMEDOUT;
goto power_normal;
}
for (count = 0; count < read_length;) {
ret = cp2112_read(dev, read_buf + count, read_length - count);
if (ret < 0)
goto power_normal;
if (ret == 0) {
hid_err(hdev, "read returned 0\n");
ret = -EIO;
goto power_normal;
}
count += ret;
if (count > read_length) {
/*
* The hardware returned too much data.
* This is mostly harmless because cp2112_read()
* has a limit check so didn't overrun our
* buffer. Nevertheless, we return an error
* because something is seriously wrong and
* it shouldn't go unnoticed.
*/
hid_err(hdev, "long read: %d > %zd\n",
ret, read_length - count + ret);
ret = -EIO;
goto power_normal;
}
}
/* return the number of transferred messages */
ret = num;
power_normal:
hid_hw_power(hdev, PM_HINT_NORMAL);
hid_dbg(hdev, "I2C transfer finished: %d\n", ret);
return ret;
}
static int cp2112_xfer(struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write, u8 command,
int size, union i2c_smbus_data *data)
{
struct cp2112_device *dev = (struct cp2112_device *)adap->algo_data;
struct hid_device *hdev = dev->hdev;
u8 buf[64];
__le16 word;
ssize_t count;
size_t read_length = 0;
unsigned int retries;
int ret;
hid_dbg(hdev, "%s addr 0x%x flags 0x%x cmd 0x%x size %d\n",
str_write_read(read_write == I2C_SMBUS_WRITE),
addr, flags, command, size);
switch (size) {
case I2C_SMBUS_BYTE:
read_length = 1;
if (I2C_SMBUS_READ == read_write)
count = cp2112_read_req(buf, addr, read_length);
else
count = cp2112_write_req(buf, addr, command, NULL,
0);
break;
case I2C_SMBUS_BYTE_DATA:
read_length = 1;
if (I2C_SMBUS_READ == read_write)
count = cp2112_write_read_req(buf, addr, read_length,
command, NULL, 0);
else
count = cp2112_write_req(buf, addr, command,
&data->byte, 1);
break;
case I2C_SMBUS_WORD_DATA:
read_length = 2;
word = cpu_to_le16(data->word);
if (I2C_SMBUS_READ == read_write)
count = cp2112_write_read_req(buf, addr, read_length,
command, NULL, 0);
else
count = cp2112_write_req(buf, addr, command,
(u8 *)&word, 2);
break;
case I2C_SMBUS_PROC_CALL:
size = I2C_SMBUS_WORD_DATA;
read_write = I2C_SMBUS_READ;
read_length = 2;
word = cpu_to_le16(data->word);
count = cp2112_write_read_req(buf, addr, read_length, command,
(u8 *)&word, 2);
break;
case I2C_SMBUS_I2C_BLOCK_DATA:
if (read_write == I2C_SMBUS_READ) {
read_length = data->block[0];
count = cp2112_write_read_req(buf, addr, read_length,
command, NULL, 0);
} else {
count = cp2112_write_req(buf, addr, command,
data->block + 1,
data->block[0]);
}
break;
case I2C_SMBUS_BLOCK_DATA:
if (I2C_SMBUS_READ == read_write) {
count = cp2112_write_read_req(buf, addr,
I2C_SMBUS_BLOCK_MAX,
command, NULL, 0);
} else {
count = cp2112_write_req(buf, addr, command,
data->block,
data->block[0] + 1);
}
break;
case I2C_SMBUS_BLOCK_PROC_CALL:
size = I2C_SMBUS_BLOCK_DATA;
read_write = I2C_SMBUS_READ;
count = cp2112_write_read_req(buf, addr, I2C_SMBUS_BLOCK_MAX,
command, data->block,
data->block[0] + 1);
break;
default:
hid_warn(hdev, "Unsupported transaction %d\n", size);
return -EOPNOTSUPP;
}
if (count < 0)
return count;
ret = hid_hw_power(hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(hdev, "power management error: %d\n", ret);
return ret;
}
ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);
if (ret < 0) {
hid_warn(hdev, "Error starting transaction: %d\n", ret);
goto power_normal;
}
for (retries = 0; retries < XFER_STATUS_RETRIES; ++retries) {
ret = cp2112_xfer_status(dev);
if (-EBUSY == ret)
continue;
if (ret < 0)
goto power_normal;
break;
}
if (XFER_STATUS_RETRIES <= retries) {
hid_warn(hdev, "Transfer timed out, cancelling.\n");
buf[0] = CP2112_CANCEL_TRANSFER;
buf[1] = 0x01;
ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);
if (ret < 0)
hid_warn(hdev, "Error cancelling transaction: %d\n",
ret);
ret = -ETIMEDOUT;
goto power_normal;
}
if (I2C_SMBUS_WRITE == read_write) {
ret = 0;
goto power_normal;
}
if (I2C_SMBUS_BLOCK_DATA == size)
read_length = ret;
ret = cp2112_read(dev, buf, read_length);
if (ret < 0)
goto power_normal;
if (ret != read_length) {
hid_warn(hdev, "short read: %d < %zd\n", ret, read_length);
ret = -EIO;
goto power_normal;
}
switch (size) {
case I2C_SMBUS_BYTE:
case I2C_SMBUS_BYTE_DATA:
data->byte = buf[0];
break;
case I2C_SMBUS_WORD_DATA:
data->word = le16_to_cpup((__le16 *)buf);
break;
case I2C_SMBUS_I2C_BLOCK_DATA:
if (read_length > I2C_SMBUS_BLOCK_MAX) {
ret = -EINVAL;
goto power_normal;
}
memcpy(data->block + 1, buf, read_length);
break;
case I2C_SMBUS_BLOCK_DATA:
if (read_length > I2C_SMBUS_BLOCK_MAX) {
ret = -EPROTO;
goto power_normal;
}
memcpy(data->block, buf, read_length);
break;
}
ret = 0;
power_normal:
hid_hw_power(hdev, PM_HINT_NORMAL);
hid_dbg(hdev, "transfer finished: %d\n", ret);
return ret;
}
static u32 cp2112_functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C |
I2C_FUNC_SMBUS_BYTE |
I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_BLOCK_DATA |
I2C_FUNC_SMBUS_I2C_BLOCK |
I2C_FUNC_SMBUS_PROC_CALL |
I2C_FUNC_SMBUS_BLOCK_PROC_CALL;
}
static const struct i2c_algorithm smbus_algorithm = {
.master_xfer = cp2112_i2c_xfer,
.smbus_xfer = cp2112_xfer,
.functionality = cp2112_functionality,
};
static int cp2112_get_usb_config(struct hid_device *hdev,
struct cp2112_usb_config_report *cfg)
{
int ret;
ret = cp2112_hid_get(hdev, CP2112_USB_CONFIG, (u8 *)cfg, sizeof(*cfg),
HID_FEATURE_REPORT);
if (ret != sizeof(*cfg)) {
hid_err(hdev, "error reading usb config: %d\n", ret);
if (ret < 0)
return ret;
return -EIO;
}
return 0;
}
static int cp2112_set_usb_config(struct hid_device *hdev,
struct cp2112_usb_config_report *cfg)
{
int ret;
BUG_ON(cfg->report != CP2112_USB_CONFIG);
ret = cp2112_hid_output(hdev, (u8 *)cfg, sizeof(*cfg),
HID_FEATURE_REPORT);
if (ret != sizeof(*cfg)) {
hid_err(hdev, "error writing usb config: %d\n", ret);
if (ret < 0)
return ret;
return -EIO;
}
return 0;
}
static void chmod_sysfs_attrs(struct hid_device *hdev);
#define CP2112_CONFIG_ATTR(name, store, format, ...) \
static ssize_t name##_store(struct device *kdev, \
struct device_attribute *attr, const char *buf, \
size_t count) \
{ \
struct hid_device *hdev = to_hid_device(kdev); \
struct cp2112_usb_config_report cfg; \
int ret = cp2112_get_usb_config(hdev, &cfg); \
if (ret) \
return ret; \
store; \
ret = cp2112_set_usb_config(hdev, &cfg); \
if (ret) \
return ret; \
chmod_sysfs_attrs(hdev); \
return count; \
} \
static ssize_t name##_show(struct device *kdev, \
struct device_attribute *attr, char *buf) \
{ \
struct hid_device *hdev = to_hid_device(kdev); \
struct cp2112_usb_config_report cfg; \
int ret = cp2112_get_usb_config(hdev, &cfg); \
if (ret) \
return ret; \
return sysfs_emit(buf, format, ##__VA_ARGS__); \
} \
static DEVICE_ATTR_RW(name);
CP2112_CONFIG_ATTR(vendor_id, ({
u16 vid;
if (sscanf(buf, "%hi", &vid) != 1)
return -EINVAL;
cfg.vid = cpu_to_le16(vid);
cfg.mask = 0x01;
}), "0x%04x\n", le16_to_cpu(cfg.vid));
CP2112_CONFIG_ATTR(product_id, ({
u16 pid;
if (sscanf(buf, "%hi", &pid) != 1)
return -EINVAL;
cfg.pid = cpu_to_le16(pid);
cfg.mask = 0x02;
}), "0x%04x\n", le16_to_cpu(cfg.pid));
CP2112_CONFIG_ATTR(max_power, ({
int mA;
if (sscanf(buf, "%i", &mA) != 1)
return -EINVAL;
cfg.max_power = (mA + 1) / 2;
cfg.mask = 0x04;
}), "%u mA\n", cfg.max_power * 2);
CP2112_CONFIG_ATTR(power_mode, ({
if (sscanf(buf, "%hhi", &cfg.power_mode) != 1)
return -EINVAL;
cfg.mask = 0x08;
}), "%u\n", cfg.power_mode);
CP2112_CONFIG_ATTR(release_version, ({
if (sscanf(buf, "%hhi.%hhi", &cfg.release_major, &cfg.release_minor)
!= 2)
return -EINVAL;
cfg.mask = 0x10;
}), "%u.%u\n", cfg.release_major, cfg.release_minor);
#undef CP2112_CONFIG_ATTR
static ssize_t pstr_store(struct device *kdev, struct device_attribute *kattr,
const char *buf, size_t count, int number)
{
struct hid_device *hdev = to_hid_device(kdev);
struct cp2112_string_report report;
int ret;
memset(&report, 0, sizeof(report));
ret = utf8s_to_utf16s(buf, count, UTF16_LITTLE_ENDIAN,
report.string, ARRAY_SIZE(report.string));
report.report = number;
report.length = ret * sizeof(report.string[0]) + 2;
report.type = USB_DT_STRING;
ret = cp2112_hid_output(hdev, &report.report, report.length + 1,
HID_FEATURE_REPORT);
if (ret != report.length + 1) {
hid_err(hdev, "error writing %s string: %d\n", kattr->attr.name,
ret);
if (ret < 0)
return ret;
return -EIO;
}
chmod_sysfs_attrs(hdev);
return count;
}
static ssize_t pstr_show(struct device *kdev, struct device_attribute *kattr,
char *buf, int number)
{
struct hid_device *hdev = to_hid_device(kdev);
struct cp2112_string_report report;
u8 length;
int ret;
ret = cp2112_hid_get(hdev, number, (u8 *)&report.contents,
sizeof(report.contents), HID_FEATURE_REPORT);
if (ret < 3) {
hid_err(hdev, "error reading %s string: %d\n", kattr->attr.name,
ret);
if (ret < 0)
return ret;
return -EIO;
}
if (report.length < 2) {
hid_err(hdev, "invalid %s string length: %d\n",
kattr->attr.name, report.length);
return -EIO;
}
length = report.length > ret - 1 ? ret - 1 : report.length;
length = (length - 2) / sizeof(report.string[0]);
ret = utf16s_to_utf8s(report.string, length, UTF16_LITTLE_ENDIAN, buf,
PAGE_SIZE - 1);
buf[ret++] = '\n';
return ret;
}
#define CP2112_PSTR_ATTR(name, _report) \
static ssize_t name##_store(struct device *kdev, struct device_attribute *kattr, \
const char *buf, size_t count) \
{ \
return pstr_store(kdev, kattr, buf, count, _report); \
} \
static ssize_t name##_show(struct device *kdev, struct device_attribute *kattr, char *buf) \
{ \
return pstr_show(kdev, kattr, buf, _report); \
} \
static DEVICE_ATTR_RW(name);
CP2112_PSTR_ATTR(manufacturer, CP2112_MANUFACTURER_STRING);
CP2112_PSTR_ATTR(product, CP2112_PRODUCT_STRING);
CP2112_PSTR_ATTR(serial, CP2112_SERIAL_STRING);
#undef CP2112_PSTR_ATTR
static const struct attribute_group cp2112_attr_group = {
.attrs = (struct attribute *[]){
&dev_attr_vendor_id.attr,
&dev_attr_product_id.attr,
&dev_attr_max_power.attr,
&dev_attr_power_mode.attr,
&dev_attr_release_version.attr,
&dev_attr_manufacturer.attr,
&dev_attr_product.attr,
&dev_attr_serial.attr,
NULL
}
};
/* Chmoding our sysfs attributes is simply a way to expose which fields in the
* PROM have already been programmed. We do not depend on this preventing
* writing to these attributes since the CP2112 will simply ignore writes to
* already-programmed fields. This is why there is no sense in fixing this
* racy behaviour.
*/
static void chmod_sysfs_attrs(struct hid_device *hdev)
{
struct attribute **attr;
u8 buf[2];
int ret;
ret = cp2112_hid_get(hdev, CP2112_LOCK_BYTE, buf, sizeof(buf),
HID_FEATURE_REPORT);
if (ret != sizeof(buf)) {
hid_err(hdev, "error reading lock byte: %d\n", ret);
return;
}
for (attr = cp2112_attr_group.attrs; *attr; ++attr) {
umode_t mode = (buf[1] & 1) ? 0644 : 0444;
ret = sysfs_chmod_file(&hdev->dev.kobj, *attr, mode);
if (ret < 0)
hid_err(hdev, "error chmoding sysfs file %s\n",
(*attr)->name);
buf[1] >>= 1;
}
}
static void cp2112_gpio_irq_ack(struct irq_data *d)
{
}
static void cp2112_gpio_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct cp2112_device *dev = gpiochip_get_data(gc);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
__clear_bit(hwirq, &dev->irq_mask);
gpiochip_disable_irq(gc, hwirq);
}
static void cp2112_gpio_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct cp2112_device *dev = gpiochip_get_data(gc);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
gpiochip_enable_irq(gc, hwirq);
__set_bit(hwirq, &dev->irq_mask);
}
static void cp2112_gpio_poll_callback(struct work_struct *work)
{
struct cp2112_device *dev = container_of(work, struct cp2112_device,
gpio_poll_worker.work);
struct irq_data *d;
u8 gpio_mask;
u32 irq_type;
int irq, virq, ret;
ret = cp2112_gpio_get_all(&dev->gc);
if (ret == -ENODEV) /* the hardware has been disconnected */
return;
if (ret < 0)
goto exit;
gpio_mask = ret;
for_each_set_bit(virq, &dev->irq_mask, CP2112_GPIO_MAX_GPIO) {
irq = irq_find_mapping(dev->gc.irq.domain, virq);
if (!irq)
continue;
d = irq_get_irq_data(irq);
if (!d)
continue;
irq_type = irqd_get_trigger_type(d);
if (gpio_mask & BIT(virq)) {
/* Level High */
if (irq_type & IRQ_TYPE_LEVEL_HIGH)
handle_nested_irq(irq);
if ((irq_type & IRQ_TYPE_EDGE_RISING) &&
!(dev->gpio_prev_state & BIT(virq)))
handle_nested_irq(irq);
} else {
/* Level Low */
if (irq_type & IRQ_TYPE_LEVEL_LOW)
handle_nested_irq(irq);
if ((irq_type & IRQ_TYPE_EDGE_FALLING) &&
(dev->gpio_prev_state & BIT(virq)))
handle_nested_irq(irq);
}
}
dev->gpio_prev_state = gpio_mask;
exit:
if (dev->gpio_poll)
schedule_delayed_work(&dev->gpio_poll_worker, 10);
}
static unsigned int cp2112_gpio_irq_startup(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct cp2112_device *dev = gpiochip_get_data(gc);
INIT_DELAYED_WORK(&dev->gpio_poll_worker, cp2112_gpio_poll_callback);
if (!dev->gpio_poll) {
dev->gpio_poll = true;
schedule_delayed_work(&dev->gpio_poll_worker, 0);
}
cp2112_gpio_irq_unmask(d);
return 0;
}
static void cp2112_gpio_irq_shutdown(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct cp2112_device *dev = gpiochip_get_data(gc);
cp2112_gpio_irq_mask(d);
cancel_delayed_work_sync(&dev->gpio_poll_worker);
}
static int cp2112_gpio_irq_type(struct irq_data *d, unsigned int type)
{
return 0;
}
static const struct irq_chip cp2112_gpio_irqchip = {
.name = "cp2112-gpio",
.irq_startup = cp2112_gpio_irq_startup,
.irq_shutdown = cp2112_gpio_irq_shutdown,
.irq_ack = cp2112_gpio_irq_ack,
.irq_mask = cp2112_gpio_irq_mask,
.irq_unmask = cp2112_gpio_irq_unmask,
.irq_set_type = cp2112_gpio_irq_type,
.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_IMMUTABLE,
GPIOCHIP_IRQ_RESOURCE_HELPERS,
};
static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct cp2112_device *dev;
u8 buf[3];
struct cp2112_smbus_config_report config;
struct gpio_irq_chip *girq;
int ret;
dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
dev->in_out_buffer = devm_kzalloc(&hdev->dev, CP2112_REPORT_MAX_LENGTH,
GFP_KERNEL);
if (!dev->in_out_buffer)
return -ENOMEM;
mutex_init(&dev->lock);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "hw open failed\n");
goto err_hid_stop;
}
ret = hid_hw_power(hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(hdev, "power management error: %d\n", ret);
goto err_hid_close;
}
ret = cp2112_hid_get(hdev, CP2112_GET_VERSION_INFO, buf, sizeof(buf),
HID_FEATURE_REPORT);
if (ret != sizeof(buf)) {
hid_err(hdev, "error requesting version\n");
if (ret >= 0)
ret = -EIO;
goto err_power_normal;
}
hid_info(hdev, "Part Number: 0x%02X Device Version: 0x%02X\n",
buf[1], buf[2]);
ret = cp2112_hid_get(hdev, CP2112_SMBUS_CONFIG, (u8 *)&config,
sizeof(config), HID_FEATURE_REPORT);
if (ret != sizeof(config)) {
hid_err(hdev, "error requesting SMBus config\n");
if (ret >= 0)
ret = -EIO;
goto err_power_normal;
}
config.retry_time = cpu_to_be16(1);
ret = cp2112_hid_output(hdev, (u8 *)&config, sizeof(config),
HID_FEATURE_REPORT);
if (ret != sizeof(config)) {
hid_err(hdev, "error setting SMBus config\n");
if (ret >= 0)
ret = -EIO;
goto err_power_normal;
}
hid_set_drvdata(hdev, (void *)dev);
dev->hdev = hdev;
dev->adap.owner = THIS_MODULE;
dev->adap.class = I2C_CLASS_HWMON;
dev->adap.algo = &smbus_algorithm;
dev->adap.algo_data = dev;
dev->adap.dev.parent = &hdev->dev;
snprintf(dev->adap.name, sizeof(dev->adap.name),
"CP2112 SMBus Bridge on hidraw%d",
((struct hidraw *)hdev->hidraw)->minor);
dev->hwversion = buf[2];
init_waitqueue_head(&dev->wait);
hid_device_io_start(hdev);
ret = i2c_add_adapter(&dev->adap);
hid_device_io_stop(hdev);
if (ret) {
hid_err(hdev, "error registering i2c adapter\n");
goto err_power_normal;
}
hid_dbg(hdev, "adapter registered\n");
dev->gc.label = "cp2112_gpio";
dev->gc.direction_input = cp2112_gpio_direction_input;
dev->gc.direction_output = cp2112_gpio_direction_output;
dev->gc.set = cp2112_gpio_set;
dev->gc.get = cp2112_gpio_get;
dev->gc.base = -1;
dev->gc.ngpio = CP2112_GPIO_MAX_GPIO;
dev->gc.can_sleep = 1;
dev->gc.parent = &hdev->dev;
girq = &dev->gc.irq;
gpio_irq_chip_set_chip(girq, &cp2112_gpio_irqchip);
/* The event comes from the outside so no parent handler */
girq->parent_handler = NULL;
girq->num_parents = 0;
girq->parents = NULL;
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_simple_irq;
girq->threaded = true;
ret = gpiochip_add_data(&dev->gc, dev);
if (ret < 0) {
hid_err(hdev, "error registering gpio chip\n");
goto err_free_i2c;
}
ret = sysfs_create_group(&hdev->dev.kobj, &cp2112_attr_group);
if (ret < 0) {
hid_err(hdev, "error creating sysfs attrs\n");
goto err_gpiochip_remove;
}
chmod_sysfs_attrs(hdev);
hid_hw_power(hdev, PM_HINT_NORMAL);
return ret;
err_gpiochip_remove:
gpiochip_remove(&dev->gc);
err_free_i2c:
i2c_del_adapter(&dev->adap);
err_power_normal:
hid_hw_power(hdev, PM_HINT_NORMAL);
err_hid_close:
hid_hw_close(hdev);
err_hid_stop:
hid_hw_stop(hdev);
return ret;
}
static void cp2112_remove(struct hid_device *hdev)
{
struct cp2112_device *dev = hid_get_drvdata(hdev);
sysfs_remove_group(&hdev->dev.kobj, &cp2112_attr_group);
i2c_del_adapter(&dev->adap);
if (dev->gpio_poll) {
dev->gpio_poll = false;
cancel_delayed_work_sync(&dev->gpio_poll_worker);
}
gpiochip_remove(&dev->gc);
/* i2c_del_adapter has finished removing all i2c devices from our
* adapter. Well behaved devices should no longer call our cp2112_xfer
* and should have waited for any pending calls to finish. It has also
* waited for device_unregister(&adap->dev) to complete. Therefore we
* can safely free our struct cp2112_device.
*/
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static int cp2112_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct cp2112_device *dev = hid_get_drvdata(hdev);
struct cp2112_xfer_status_report *xfer = (void *)data;
switch (data[0]) {
case CP2112_TRANSFER_STATUS_RESPONSE:
hid_dbg(hdev, "xfer status: %02x %02x %04x %04x\n",
xfer->status0, xfer->status1,
be16_to_cpu(xfer->retries), be16_to_cpu(xfer->length));
switch (xfer->status0) {
case STATUS0_IDLE:
dev->xfer_status = -EAGAIN;
break;
case STATUS0_BUSY:
dev->xfer_status = -EBUSY;
break;
case STATUS0_COMPLETE:
dev->xfer_status = be16_to_cpu(xfer->length);
break;
case STATUS0_ERROR:
switch (xfer->status1) {
case STATUS1_TIMEOUT_NACK:
case STATUS1_TIMEOUT_BUS:
dev->xfer_status = -ETIMEDOUT;
break;
default:
dev->xfer_status = -EIO;
break;
}
break;
default:
dev->xfer_status = -EINVAL;
break;
}
atomic_set(&dev->xfer_avail, 1);
break;
case CP2112_DATA_READ_RESPONSE:
hid_dbg(hdev, "read response: %02x %02x\n", data[1], data[2]);
dev->read_length = data[2];
if (dev->read_length > sizeof(dev->read_data))
dev->read_length = sizeof(dev->read_data);
memcpy(dev->read_data, &data[3], dev->read_length);
atomic_set(&dev->read_avail, 1);
break;
default:
hid_err(hdev, "unknown report\n");
return 0;
}
wake_up_interruptible(&dev->wait);
return 1;
}
static struct hid_driver cp2112_driver = {
.name = "cp2112",
.id_table = cp2112_devices,
.probe = cp2112_probe,
.remove = cp2112_remove,
.raw_event = cp2112_raw_event,
};
module_hid_driver(cp2112_driver);
MODULE_DESCRIPTION("Silicon Labs HID USB to SMBus master bridge");
MODULE_AUTHOR("David Barksdale <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-cp2112.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* hid-ft260.c - FTDI FT260 USB HID to I2C host bridge
*
* Copyright (c) 2021, Michael Zaidman <[email protected]>
*
* Data Sheet:
* https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT260.pdf
*/
#include "hid-ids.h"
#include <linux/hidraw.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/usb.h>
#ifdef DEBUG
static int ft260_debug = 1;
#else
static int ft260_debug;
#endif
module_param_named(debug, ft260_debug, int, 0600);
MODULE_PARM_DESC(debug, "Toggle FT260 debugging messages");
#define ft260_dbg(format, arg...) \
do { \
if (ft260_debug) \
pr_info("%s: " format, __func__, ##arg); \
} while (0)
#define FT260_REPORT_MAX_LENGTH (64)
#define FT260_I2C_DATA_REPORT_ID(len) (FT260_I2C_REPORT_MIN + (len - 1) / 4)
#define FT260_WAKEUP_NEEDED_AFTER_MS (4800) /* 5s minus 200ms margin */
/*
* The ft260 input report format defines 62 bytes for the data payload, but
* when requested 62 bytes, the controller returns 60 and 2 in separate input
* reports. To achieve better performance with the multi-report read data
* transfers, we set the maximum read payload length to a multiple of 60.
* With a 100 kHz I2C clock, one 240 bytes read takes about 1/27 second,
* which is excessive; On the other hand, some higher layer drivers like at24
* or optoe limit the i2c reads to 128 bytes. To not block other drivers out
* of I2C for potentially troublesome amounts of time, we select the maximum
* read payload length to be 180 bytes.
*/
#define FT260_RD_DATA_MAX (180)
#define FT260_WR_DATA_MAX (60)
/*
* Device interface configuration.
* The FT260 has 2 interfaces that are controlled by DCNF0 and DCNF1 pins.
* First implementes USB HID to I2C bridge function and
* second - USB HID to UART bridge function.
*/
enum {
FT260_MODE_ALL = 0x00,
FT260_MODE_I2C = 0x01,
FT260_MODE_UART = 0x02,
FT260_MODE_BOTH = 0x03,
};
/* Control pipe */
enum {
FT260_GET_RQST_TYPE = 0xA1,
FT260_GET_REPORT = 0x01,
FT260_SET_RQST_TYPE = 0x21,
FT260_SET_REPORT = 0x09,
FT260_FEATURE = 0x03,
};
/* Report IDs / Feature In */
enum {
FT260_CHIP_VERSION = 0xA0,
FT260_SYSTEM_SETTINGS = 0xA1,
FT260_I2C_STATUS = 0xC0,
FT260_I2C_READ_REQ = 0xC2,
FT260_I2C_REPORT_MIN = 0xD0,
FT260_I2C_REPORT_MAX = 0xDE,
FT260_GPIO = 0xB0,
FT260_UART_INTERRUPT_STATUS = 0xB1,
FT260_UART_STATUS = 0xE0,
FT260_UART_RI_DCD_STATUS = 0xE1,
FT260_UART_REPORT = 0xF0,
};
/* Feature Out */
enum {
FT260_SET_CLOCK = 0x01,
FT260_SET_I2C_MODE = 0x02,
FT260_SET_UART_MODE = 0x03,
FT260_ENABLE_INTERRUPT = 0x05,
FT260_SELECT_GPIO2_FUNC = 0x06,
FT260_ENABLE_UART_DCD_RI = 0x07,
FT260_SELECT_GPIOA_FUNC = 0x08,
FT260_SELECT_GPIOG_FUNC = 0x09,
FT260_SET_INTERRUPT_TRIGGER = 0x0A,
FT260_SET_SUSPEND_OUT_POLAR = 0x0B,
FT260_ENABLE_UART_RI_WAKEUP = 0x0C,
FT260_SET_UART_RI_WAKEUP_CFG = 0x0D,
FT260_SET_I2C_RESET = 0x20,
FT260_SET_I2C_CLOCK_SPEED = 0x22,
FT260_SET_UART_RESET = 0x40,
FT260_SET_UART_CONFIG = 0x41,
FT260_SET_UART_BAUD_RATE = 0x42,
FT260_SET_UART_DATA_BIT = 0x43,
FT260_SET_UART_PARITY = 0x44,
FT260_SET_UART_STOP_BIT = 0x45,
FT260_SET_UART_BREAKING = 0x46,
FT260_SET_UART_XON_XOFF = 0x49,
};
/* Response codes in I2C status report */
enum {
FT260_I2C_STATUS_SUCCESS = 0x00,
FT260_I2C_STATUS_CTRL_BUSY = 0x01,
FT260_I2C_STATUS_ERROR = 0x02,
FT260_I2C_STATUS_ADDR_NO_ACK = 0x04,
FT260_I2C_STATUS_DATA_NO_ACK = 0x08,
FT260_I2C_STATUS_ARBITR_LOST = 0x10,
FT260_I2C_STATUS_CTRL_IDLE = 0x20,
FT260_I2C_STATUS_BUS_BUSY = 0x40,
};
/* I2C Conditions flags */
enum {
FT260_FLAG_NONE = 0x00,
FT260_FLAG_START = 0x02,
FT260_FLAG_START_REPEATED = 0x03,
FT260_FLAG_STOP = 0x04,
FT260_FLAG_START_STOP = 0x06,
FT260_FLAG_START_STOP_REPEATED = 0x07,
};
#define FT260_SET_REQUEST_VALUE(report_id) ((FT260_FEATURE << 8) | report_id)
/* Feature In reports */
struct ft260_get_chip_version_report {
u8 report; /* FT260_CHIP_VERSION */
u8 chip_code[4]; /* FTDI chip identification code */
u8 reserved[8];
} __packed;
struct ft260_get_system_status_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 chip_mode; /* DCNF0 and DCNF1 status, bits 0-1 */
u8 clock_ctl; /* 0 - 12MHz, 1 - 24MHz, 2 - 48MHz */
u8 suspend_status; /* 0 - not suspended, 1 - suspended */
u8 pwren_status; /* 0 - FT260 is not ready, 1 - ready */
u8 i2c_enable; /* 0 - disabled, 1 - enabled */
u8 uart_mode; /* 0 - OFF; 1 - RTS_CTS, 2 - DTR_DSR, */
/* 3 - XON_XOFF, 4 - No flow control */
u8 hid_over_i2c_en; /* 0 - disabled, 1 - enabled */
u8 gpio2_function; /* 0 - GPIO, 1 - SUSPOUT, */
/* 2 - PWREN, 4 - TX_LED */
u8 gpioA_function; /* 0 - GPIO, 3 - TX_ACTIVE, 4 - TX_LED */
u8 gpioG_function; /* 0 - GPIO, 2 - PWREN, */
/* 5 - RX_LED, 6 - BCD_DET */
u8 suspend_out_pol; /* 0 - active-high, 1 - active-low */
u8 enable_wakeup_int; /* 0 - disabled, 1 - enabled */
u8 intr_cond; /* Interrupt trigger conditions */
u8 power_saving_en; /* 0 - disabled, 1 - enabled */
u8 reserved[10];
} __packed;
struct ft260_get_i2c_status_report {
u8 report; /* FT260_I2C_STATUS */
u8 bus_status; /* I2C bus status */
__le16 clock; /* I2C bus clock in range 60-3400 KHz */
u8 reserved;
} __packed;
/* Feature Out reports */
struct ft260_set_system_clock_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 request; /* FT260_SET_CLOCK */
u8 clock_ctl; /* 0 - 12MHz, 1 - 24MHz, 2 - 48MHz */
} __packed;
struct ft260_set_i2c_mode_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 request; /* FT260_SET_I2C_MODE */
u8 i2c_enable; /* 0 - disabled, 1 - enabled */
} __packed;
struct ft260_set_uart_mode_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 request; /* FT260_SET_UART_MODE */
u8 uart_mode; /* 0 - OFF; 1 - RTS_CTS, 2 - DTR_DSR, */
/* 3 - XON_XOFF, 4 - No flow control */
} __packed;
struct ft260_set_i2c_reset_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 request; /* FT260_SET_I2C_RESET */
} __packed;
struct ft260_set_i2c_speed_report {
u8 report; /* FT260_SYSTEM_SETTINGS */
u8 request; /* FT260_SET_I2C_CLOCK_SPEED */
__le16 clock; /* I2C bus clock in range 60-3400 KHz */
} __packed;
/* Data transfer reports */
struct ft260_i2c_write_request_report {
u8 report; /* FT260_I2C_REPORT */
u8 address; /* 7-bit I2C address */
u8 flag; /* I2C transaction condition */
u8 length; /* data payload length */
u8 data[FT260_WR_DATA_MAX]; /* data payload */
} __packed;
struct ft260_i2c_read_request_report {
u8 report; /* FT260_I2C_READ_REQ */
u8 address; /* 7-bit I2C address */
u8 flag; /* I2C transaction condition */
__le16 length; /* data payload length */
} __packed;
struct ft260_i2c_input_report {
u8 report; /* FT260_I2C_REPORT */
u8 length; /* data payload length */
u8 data[2]; /* data payload */
} __packed;
static const struct hid_device_id ft260_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY,
USB_DEVICE_ID_FT260) },
{ /* END OF LIST */ }
};
MODULE_DEVICE_TABLE(hid, ft260_devices);
struct ft260_device {
struct i2c_adapter adap;
struct hid_device *hdev;
struct completion wait;
struct mutex lock;
u8 write_buf[FT260_REPORT_MAX_LENGTH];
unsigned long need_wakeup_at;
u8 *read_buf;
u16 read_idx;
u16 read_len;
u16 clock;
};
static int ft260_hid_feature_report_get(struct hid_device *hdev,
unsigned char report_id, u8 *data,
size_t len)
{
u8 *buf;
int ret;
buf = kmalloc(len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, report_id, buf, len, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (likely(ret == len))
memcpy(data, buf, len);
else if (ret >= 0)
ret = -EIO;
kfree(buf);
return ret;
}
static int ft260_hid_feature_report_set(struct hid_device *hdev, u8 *data,
size_t len)
{
u8 *buf;
int ret;
buf = kmemdup(data, len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf[0] = FT260_SYSTEM_SETTINGS;
ret = hid_hw_raw_request(hdev, buf[0], buf, len, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
kfree(buf);
return ret;
}
static int ft260_i2c_reset(struct hid_device *hdev)
{
struct ft260_set_i2c_reset_report report;
int ret;
report.request = FT260_SET_I2C_RESET;
ret = ft260_hid_feature_report_set(hdev, (u8 *)&report, sizeof(report));
if (ret < 0) {
hid_err(hdev, "failed to reset I2C controller: %d\n", ret);
return ret;
}
ft260_dbg("done\n");
return ret;
}
static int ft260_xfer_status(struct ft260_device *dev, u8 bus_busy)
{
struct hid_device *hdev = dev->hdev;
struct ft260_get_i2c_status_report report;
int ret;
if (time_is_before_jiffies(dev->need_wakeup_at)) {
ret = ft260_hid_feature_report_get(hdev, FT260_I2C_STATUS,
(u8 *)&report, sizeof(report));
if (unlikely(ret < 0)) {
hid_err(hdev, "failed to retrieve status: %d, no wakeup\n",
ret);
} else {
dev->need_wakeup_at = jiffies +
msecs_to_jiffies(FT260_WAKEUP_NEEDED_AFTER_MS);
ft260_dbg("bus_status %#02x, wakeup\n",
report.bus_status);
}
}
ret = ft260_hid_feature_report_get(hdev, FT260_I2C_STATUS,
(u8 *)&report, sizeof(report));
if (unlikely(ret < 0)) {
hid_err(hdev, "failed to retrieve status: %d\n", ret);
return ret;
}
dev->clock = le16_to_cpu(report.clock);
ft260_dbg("bus_status %#02x, clock %u\n", report.bus_status,
dev->clock);
if (report.bus_status & (FT260_I2C_STATUS_CTRL_BUSY | bus_busy))
return -EAGAIN;
/*
* The error condition (bit 1) is a status bit reflecting any
* error conditions. When any of the bits 2, 3, or 4 are raised
* to 1, bit 1 is also set to 1.
*/
if (report.bus_status & FT260_I2C_STATUS_ERROR) {
hid_err(hdev, "i2c bus error: %#02x\n", report.bus_status);
return -EIO;
}
return 0;
}
static int ft260_hid_output_report(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);
return ret;
}
static int ft260_hid_output_report_check_status(struct ft260_device *dev,
u8 *data, int len)
{
u8 bus_busy;
int ret, usec, try = 100;
struct hid_device *hdev = dev->hdev;
struct ft260_i2c_write_request_report *rep =
(struct ft260_i2c_write_request_report *)data;
ret = ft260_hid_output_report(hdev, data, len);
if (ret < 0) {
hid_err(hdev, "%s: failed to start transfer, ret %d\n",
__func__, ret);
ft260_i2c_reset(hdev);
return ret;
}
/* transfer time = 1 / clock(KHz) * 9 bits * bytes */
usec = len * 9000 / dev->clock;
if (usec > 2000) {
usec -= 1500;
usleep_range(usec, usec + 100);
ft260_dbg("wait %d usec, len %d\n", usec, len);
}
/*
* Do not check the busy bit for combined transactions
* since the controller keeps the bus busy between writing
* and reading IOs to ensure an atomic operation.
*/
if (rep->flag == FT260_FLAG_START)
bus_busy = 0;
else
bus_busy = FT260_I2C_STATUS_BUS_BUSY;
do {
ret = ft260_xfer_status(dev, bus_busy);
if (ret != -EAGAIN)
break;
} while (--try);
if (ret == 0)
return 0;
ft260_i2c_reset(hdev);
return -EIO;
}
static int ft260_i2c_write(struct ft260_device *dev, u8 addr, u8 *data,
int len, u8 flag)
{
int ret, wr_len, idx = 0;
struct hid_device *hdev = dev->hdev;
struct ft260_i2c_write_request_report *rep =
(struct ft260_i2c_write_request_report *)dev->write_buf;
if (len < 1)
return -EINVAL;
rep->flag = FT260_FLAG_START;
do {
if (len <= FT260_WR_DATA_MAX) {
wr_len = len;
if (flag == FT260_FLAG_START_STOP)
rep->flag |= FT260_FLAG_STOP;
} else {
wr_len = FT260_WR_DATA_MAX;
}
rep->report = FT260_I2C_DATA_REPORT_ID(wr_len);
rep->address = addr;
rep->length = wr_len;
memcpy(rep->data, &data[idx], wr_len);
ft260_dbg("rep %#02x addr %#02x off %d len %d wlen %d flag %#x d[0] %#02x\n",
rep->report, addr, idx, len, wr_len,
rep->flag, data[0]);
ret = ft260_hid_output_report_check_status(dev, (u8 *)rep,
wr_len + 4);
if (ret < 0) {
hid_err(hdev, "%s: failed with %d\n", __func__, ret);
return ret;
}
len -= wr_len;
idx += wr_len;
rep->flag = 0;
} while (len > 0);
return 0;
}
static int ft260_smbus_write(struct ft260_device *dev, u8 addr, u8 cmd,
u8 *data, u8 data_len, u8 flag)
{
int ret = 0;
int len = 4;
struct ft260_i2c_write_request_report *rep =
(struct ft260_i2c_write_request_report *)dev->write_buf;
if (data_len >= sizeof(rep->data))
return -EINVAL;
rep->address = addr;
rep->data[0] = cmd;
rep->length = data_len + 1;
rep->flag = flag;
len += rep->length;
rep->report = FT260_I2C_DATA_REPORT_ID(len);
if (data_len > 0)
memcpy(&rep->data[1], data, data_len);
ft260_dbg("rep %#02x addr %#02x cmd %#02x datlen %d replen %d\n",
rep->report, addr, cmd, rep->length, len);
ret = ft260_hid_output_report_check_status(dev, (u8 *)rep, len);
return ret;
}
static int ft260_i2c_read(struct ft260_device *dev, u8 addr, u8 *data,
u16 len, u8 flag)
{
u16 rd_len;
u16 rd_data_max = 60;
int timeout, ret = 0;
struct ft260_i2c_read_request_report rep;
struct hid_device *hdev = dev->hdev;
u8 bus_busy = 0;
if ((flag & FT260_FLAG_START_REPEATED) == FT260_FLAG_START_REPEATED)
flag = FT260_FLAG_START_REPEATED;
else
flag = FT260_FLAG_START;
do {
if (len <= rd_data_max) {
rd_len = len;
flag |= FT260_FLAG_STOP;
} else {
rd_len = rd_data_max;
}
rd_data_max = FT260_RD_DATA_MAX;
rep.report = FT260_I2C_READ_REQ;
rep.length = cpu_to_le16(rd_len);
rep.address = addr;
rep.flag = flag;
ft260_dbg("rep %#02x addr %#02x len %d rlen %d flag %#x\n",
rep.report, rep.address, len, rd_len, flag);
reinit_completion(&dev->wait);
dev->read_idx = 0;
dev->read_buf = data;
dev->read_len = rd_len;
ret = ft260_hid_output_report(hdev, (u8 *)&rep, sizeof(rep));
if (ret < 0) {
hid_err(hdev, "%s: failed with %d\n", __func__, ret);
goto ft260_i2c_read_exit;
}
timeout = msecs_to_jiffies(5000);
if (!wait_for_completion_timeout(&dev->wait, timeout)) {
ret = -ETIMEDOUT;
ft260_i2c_reset(hdev);
goto ft260_i2c_read_exit;
}
dev->read_buf = NULL;
if (flag & FT260_FLAG_STOP)
bus_busy = FT260_I2C_STATUS_BUS_BUSY;
ret = ft260_xfer_status(dev, bus_busy);
if (ret < 0) {
ret = -EIO;
ft260_i2c_reset(hdev);
goto ft260_i2c_read_exit;
}
len -= rd_len;
data += rd_len;
flag = 0;
} while (len > 0);
ft260_i2c_read_exit:
dev->read_buf = NULL;
return ret;
}
/*
* A random read operation is implemented as a dummy write operation, followed
* by a current address read operation. The dummy write operation is used to
* load the target byte address into the current byte address counter, from
* which the subsequent current address read operation then reads.
*/
static int ft260_i2c_write_read(struct ft260_device *dev, struct i2c_msg *msgs)
{
int ret;
int wr_len = msgs[0].len;
int rd_len = msgs[1].len;
struct hid_device *hdev = dev->hdev;
u8 addr = msgs[0].addr;
u16 read_off = 0;
if (wr_len > 2) {
hid_err(hdev, "%s: invalid wr_len: %d\n", __func__, wr_len);
return -EOPNOTSUPP;
}
if (ft260_debug) {
if (wr_len == 2)
read_off = be16_to_cpu(*(__be16 *)msgs[0].buf);
else
read_off = *msgs[0].buf;
pr_info("%s: off %#x rlen %d wlen %d\n", __func__,
read_off, rd_len, wr_len);
}
ret = ft260_i2c_write(dev, addr, msgs[0].buf, wr_len,
FT260_FLAG_START);
if (ret < 0)
return ret;
ret = ft260_i2c_read(dev, addr, msgs[1].buf, rd_len,
FT260_FLAG_START_STOP_REPEATED);
if (ret < 0)
return ret;
return 0;
}
static int ft260_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
int num)
{
int ret;
struct ft260_device *dev = i2c_get_adapdata(adapter);
struct hid_device *hdev = dev->hdev;
mutex_lock(&dev->lock);
ret = hid_hw_power(hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(hdev, "failed to enter FULLON power mode: %d\n", ret);
mutex_unlock(&dev->lock);
return ret;
}
if (num == 1) {
if (msgs->flags & I2C_M_RD)
ret = ft260_i2c_read(dev, msgs->addr, msgs->buf,
msgs->len, FT260_FLAG_START_STOP);
else
ret = ft260_i2c_write(dev, msgs->addr, msgs->buf,
msgs->len, FT260_FLAG_START_STOP);
if (ret < 0)
goto i2c_exit;
} else {
/* Combined write then read message */
ret = ft260_i2c_write_read(dev, msgs);
if (ret < 0)
goto i2c_exit;
}
ret = num;
i2c_exit:
hid_hw_power(hdev, PM_HINT_NORMAL);
mutex_unlock(&dev->lock);
return ret;
}
static int ft260_smbus_xfer(struct i2c_adapter *adapter, u16 addr, u16 flags,
char read_write, u8 cmd, int size,
union i2c_smbus_data *data)
{
int ret;
struct ft260_device *dev = i2c_get_adapdata(adapter);
struct hid_device *hdev = dev->hdev;
ft260_dbg("smbus size %d\n", size);
mutex_lock(&dev->lock);
ret = hid_hw_power(hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(hdev, "power management error: %d\n", ret);
mutex_unlock(&dev->lock);
return ret;
}
switch (size) {
case I2C_SMBUS_BYTE:
if (read_write == I2C_SMBUS_READ)
ret = ft260_i2c_read(dev, addr, &data->byte, 1,
FT260_FLAG_START_STOP);
else
ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
FT260_FLAG_START_STOP);
break;
case I2C_SMBUS_BYTE_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
FT260_FLAG_START);
if (ret)
goto smbus_exit;
ret = ft260_i2c_read(dev, addr, &data->byte, 1,
FT260_FLAG_START_STOP_REPEATED);
} else {
ret = ft260_smbus_write(dev, addr, cmd, &data->byte, 1,
FT260_FLAG_START_STOP);
}
break;
case I2C_SMBUS_WORD_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
FT260_FLAG_START);
if (ret)
goto smbus_exit;
ret = ft260_i2c_read(dev, addr, (u8 *)&data->word, 2,
FT260_FLAG_START_STOP_REPEATED);
} else {
ret = ft260_smbus_write(dev, addr, cmd,
(u8 *)&data->word, 2,
FT260_FLAG_START_STOP);
}
break;
case I2C_SMBUS_BLOCK_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
FT260_FLAG_START);
if (ret)
goto smbus_exit;
ret = ft260_i2c_read(dev, addr, data->block,
data->block[0] + 1,
FT260_FLAG_START_STOP_REPEATED);
} else {
ret = ft260_smbus_write(dev, addr, cmd, data->block,
data->block[0] + 1,
FT260_FLAG_START_STOP);
}
break;
case I2C_SMBUS_I2C_BLOCK_DATA:
if (read_write == I2C_SMBUS_READ) {
ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
FT260_FLAG_START);
if (ret)
goto smbus_exit;
ret = ft260_i2c_read(dev, addr, data->block + 1,
data->block[0],
FT260_FLAG_START_STOP_REPEATED);
} else {
ret = ft260_smbus_write(dev, addr, cmd, data->block + 1,
data->block[0],
FT260_FLAG_START_STOP);
}
break;
default:
hid_err(hdev, "unsupported smbus transaction size %d\n", size);
ret = -EOPNOTSUPP;
}
smbus_exit:
hid_hw_power(hdev, PM_HINT_NORMAL);
mutex_unlock(&dev->lock);
return ret;
}
static u32 ft260_functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE |
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_I2C_BLOCK;
}
static const struct i2c_adapter_quirks ft260_i2c_quirks = {
.flags = I2C_AQ_COMB_WRITE_THEN_READ,
.max_comb_1st_msg_len = 2,
};
static const struct i2c_algorithm ft260_i2c_algo = {
.master_xfer = ft260_i2c_xfer,
.smbus_xfer = ft260_smbus_xfer,
.functionality = ft260_functionality,
};
static int ft260_get_system_config(struct hid_device *hdev,
struct ft260_get_system_status_report *cfg)
{
int ret;
int len = sizeof(struct ft260_get_system_status_report);
ret = ft260_hid_feature_report_get(hdev, FT260_SYSTEM_SETTINGS,
(u8 *)cfg, len);
if (ret < 0) {
hid_err(hdev, "failed to retrieve system status\n");
return ret;
}
return 0;
}
static int ft260_is_interface_enabled(struct hid_device *hdev)
{
struct ft260_get_system_status_report cfg;
struct usb_interface *usbif = to_usb_interface(hdev->dev.parent);
int interface = usbif->cur_altsetting->desc.bInterfaceNumber;
int ret;
ret = ft260_get_system_config(hdev, &cfg);
if (ret < 0)
return ret;
ft260_dbg("interface: 0x%02x\n", interface);
ft260_dbg("chip mode: 0x%02x\n", cfg.chip_mode);
ft260_dbg("clock_ctl: 0x%02x\n", cfg.clock_ctl);
ft260_dbg("i2c_enable: 0x%02x\n", cfg.i2c_enable);
ft260_dbg("uart_mode: 0x%02x\n", cfg.uart_mode);
switch (cfg.chip_mode) {
case FT260_MODE_ALL:
case FT260_MODE_BOTH:
if (interface == 1)
hid_info(hdev, "uart interface is not supported\n");
else
ret = 1;
break;
case FT260_MODE_UART:
hid_info(hdev, "uart interface is not supported\n");
break;
case FT260_MODE_I2C:
ret = 1;
break;
}
return ret;
}
static int ft260_byte_show(struct hid_device *hdev, int id, u8 *cfg, int len,
u8 *field, u8 *buf)
{
int ret;
ret = ft260_hid_feature_report_get(hdev, id, cfg, len);
if (ret < 0)
return ret;
return scnprintf(buf, PAGE_SIZE, "%d\n", *field);
}
static int ft260_word_show(struct hid_device *hdev, int id, u8 *cfg, int len,
__le16 *field, u8 *buf)
{
int ret;
ret = ft260_hid_feature_report_get(hdev, id, cfg, len);
if (ret < 0)
return ret;
return scnprintf(buf, PAGE_SIZE, "%d\n", le16_to_cpu(*field));
}
#define FT260_ATTR_SHOW(name, reptype, id, type, func) \
static ssize_t name##_show(struct device *kdev, \
struct device_attribute *attr, char *buf) \
{ \
struct reptype rep; \
struct hid_device *hdev = to_hid_device(kdev); \
type *field = &rep.name; \
int len = sizeof(rep); \
\
return func(hdev, id, (u8 *)&rep, len, field, buf); \
}
#define FT260_SSTAT_ATTR_SHOW(name) \
FT260_ATTR_SHOW(name, ft260_get_system_status_report, \
FT260_SYSTEM_SETTINGS, u8, ft260_byte_show)
#define FT260_I2CST_ATTR_SHOW(name) \
FT260_ATTR_SHOW(name, ft260_get_i2c_status_report, \
FT260_I2C_STATUS, __le16, ft260_word_show)
#define FT260_ATTR_STORE(name, reptype, id, req, type, ctype, func) \
static ssize_t name##_store(struct device *kdev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct reptype rep; \
struct hid_device *hdev = to_hid_device(kdev); \
type name; \
int ret; \
\
if (!func(buf, 10, (ctype *)&name)) { \
rep.name = name; \
rep.report = id; \
rep.request = req; \
ret = ft260_hid_feature_report_set(hdev, (u8 *)&rep, \
sizeof(rep)); \
if (!ret) \
ret = count; \
} else { \
ret = -EINVAL; \
} \
return ret; \
}
#define FT260_BYTE_ATTR_STORE(name, reptype, req) \
FT260_ATTR_STORE(name, reptype, FT260_SYSTEM_SETTINGS, req, \
u8, u8, kstrtou8)
#define FT260_WORD_ATTR_STORE(name, reptype, req) \
FT260_ATTR_STORE(name, reptype, FT260_SYSTEM_SETTINGS, req, \
__le16, u16, kstrtou16)
FT260_SSTAT_ATTR_SHOW(chip_mode);
static DEVICE_ATTR_RO(chip_mode);
FT260_SSTAT_ATTR_SHOW(pwren_status);
static DEVICE_ATTR_RO(pwren_status);
FT260_SSTAT_ATTR_SHOW(suspend_status);
static DEVICE_ATTR_RO(suspend_status);
FT260_SSTAT_ATTR_SHOW(hid_over_i2c_en);
static DEVICE_ATTR_RO(hid_over_i2c_en);
FT260_SSTAT_ATTR_SHOW(power_saving_en);
static DEVICE_ATTR_RO(power_saving_en);
FT260_SSTAT_ATTR_SHOW(i2c_enable);
FT260_BYTE_ATTR_STORE(i2c_enable, ft260_set_i2c_mode_report,
FT260_SET_I2C_MODE);
static DEVICE_ATTR_RW(i2c_enable);
FT260_SSTAT_ATTR_SHOW(uart_mode);
FT260_BYTE_ATTR_STORE(uart_mode, ft260_set_uart_mode_report,
FT260_SET_UART_MODE);
static DEVICE_ATTR_RW(uart_mode);
FT260_SSTAT_ATTR_SHOW(clock_ctl);
FT260_BYTE_ATTR_STORE(clock_ctl, ft260_set_system_clock_report,
FT260_SET_CLOCK);
static DEVICE_ATTR_RW(clock_ctl);
FT260_I2CST_ATTR_SHOW(clock);
FT260_WORD_ATTR_STORE(clock, ft260_set_i2c_speed_report,
FT260_SET_I2C_CLOCK_SPEED);
static DEVICE_ATTR_RW(clock);
static ssize_t i2c_reset_store(struct device *kdev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct hid_device *hdev = to_hid_device(kdev);
int ret = ft260_i2c_reset(hdev);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_WO(i2c_reset);
static const struct attribute_group ft260_attr_group = {
.attrs = (struct attribute *[]) {
&dev_attr_chip_mode.attr,
&dev_attr_pwren_status.attr,
&dev_attr_suspend_status.attr,
&dev_attr_hid_over_i2c_en.attr,
&dev_attr_power_saving_en.attr,
&dev_attr_i2c_enable.attr,
&dev_attr_uart_mode.attr,
&dev_attr_clock_ctl.attr,
&dev_attr_i2c_reset.attr,
&dev_attr_clock.attr,
NULL
}
};
static int ft260_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct ft260_device *dev;
struct ft260_get_chip_version_report version;
int ret;
if (!hid_is_usb(hdev))
return -EINVAL;
dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "failed to parse HID\n");
return ret;
}
ret = hid_hw_start(hdev, 0);
if (ret) {
hid_err(hdev, "failed to start HID HW\n");
return ret;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "failed to open HID HW\n");
goto err_hid_stop;
}
ret = ft260_hid_feature_report_get(hdev, FT260_CHIP_VERSION,
(u8 *)&version, sizeof(version));
if (ret < 0) {
hid_err(hdev, "failed to retrieve chip version\n");
goto err_hid_close;
}
hid_info(hdev, "chip code: %02x%02x %02x%02x\n",
version.chip_code[0], version.chip_code[1],
version.chip_code[2], version.chip_code[3]);
ret = ft260_is_interface_enabled(hdev);
if (ret <= 0)
goto err_hid_close;
hid_info(hdev, "USB HID v%x.%02x Device [%s] on %s\n",
hdev->version >> 8, hdev->version & 0xff, hdev->name,
hdev->phys);
hid_set_drvdata(hdev, dev);
dev->hdev = hdev;
dev->adap.owner = THIS_MODULE;
dev->adap.class = I2C_CLASS_HWMON;
dev->adap.algo = &ft260_i2c_algo;
dev->adap.quirks = &ft260_i2c_quirks;
dev->adap.dev.parent = &hdev->dev;
snprintf(dev->adap.name, sizeof(dev->adap.name),
"FT260 usb-i2c bridge");
mutex_init(&dev->lock);
init_completion(&dev->wait);
ret = ft260_xfer_status(dev, FT260_I2C_STATUS_BUS_BUSY);
if (ret)
ft260_i2c_reset(hdev);
i2c_set_adapdata(&dev->adap, dev);
ret = i2c_add_adapter(&dev->adap);
if (ret) {
hid_err(hdev, "failed to add i2c adapter\n");
goto err_hid_close;
}
ret = sysfs_create_group(&hdev->dev.kobj, &ft260_attr_group);
if (ret < 0) {
hid_err(hdev, "failed to create sysfs attrs\n");
goto err_i2c_free;
}
return 0;
err_i2c_free:
i2c_del_adapter(&dev->adap);
err_hid_close:
hid_hw_close(hdev);
err_hid_stop:
hid_hw_stop(hdev);
return ret;
}
static void ft260_remove(struct hid_device *hdev)
{
struct ft260_device *dev = hid_get_drvdata(hdev);
if (!dev)
return;
sysfs_remove_group(&hdev->dev.kobj, &ft260_attr_group);
i2c_del_adapter(&dev->adap);
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static int ft260_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct ft260_device *dev = hid_get_drvdata(hdev);
struct ft260_i2c_input_report *xfer = (void *)data;
if (xfer->report >= FT260_I2C_REPORT_MIN &&
xfer->report <= FT260_I2C_REPORT_MAX) {
ft260_dbg("i2c resp: rep %#02x len %d\n", xfer->report,
xfer->length);
if ((dev->read_buf == NULL) ||
(xfer->length > dev->read_len - dev->read_idx)) {
hid_err(hdev, "unexpected report %#02x, length %d\n",
xfer->report, xfer->length);
return -1;
}
memcpy(&dev->read_buf[dev->read_idx], &xfer->data,
xfer->length);
dev->read_idx += xfer->length;
if (dev->read_idx == dev->read_len)
complete(&dev->wait);
} else {
hid_err(hdev, "unhandled report %#02x\n", xfer->report);
}
return 0;
}
static struct hid_driver ft260_driver = {
.name = "ft260",
.id_table = ft260_devices,
.probe = ft260_probe,
.remove = ft260_remove,
.raw_event = ft260_raw_event,
};
module_hid_driver(ft260_driver);
MODULE_DESCRIPTION("FTDI FT260 USB HID to I2C host bridge");
MODULE_AUTHOR("Michael Zaidman <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-ft260.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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) 2006-2012 Jiri Kosina
* Copyright (c) 2012 Henrik Rydberg
*/
/*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/hid.h>
static struct hid_driver hid_generic;
static int __check_hid_generic(struct device_driver *drv, void *data)
{
struct hid_driver *hdrv = to_hid_driver(drv);
struct hid_device *hdev = data;
if (hdrv == &hid_generic)
return 0;
return hid_match_device(hdev, hdrv) != NULL;
}
static bool hid_generic_match(struct hid_device *hdev,
bool ignore_special_driver)
{
if (ignore_special_driver)
return true;
if (hdev->quirks & HID_QUIRK_HAVE_SPECIAL_DRIVER)
return false;
/*
* If any other driver wants the device, leave the device to this other
* driver.
*/
if (bus_for_each_drv(&hid_bus_type, NULL, hdev, __check_hid_generic))
return false;
return true;
}
static int hid_generic_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;
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
static const struct hid_device_id hid_table[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, HID_ANY_ID, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, hid_table);
static struct hid_driver hid_generic = {
.name = "hid-generic",
.id_table = hid_table,
.match = hid_generic_match,
.probe = hid_generic_probe,
};
module_hid_driver(hid_generic);
MODULE_AUTHOR("Henrik Rydberg");
MODULE_DESCRIPTION("HID generic driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-generic.c |
// SPDX-License-Identifier: GPL-2.0
/*
* HID driver for Xiaomi Mi Dual Mode Wireless Mouse Silent Edition
*
* Copyright (c) 2021 Ilya Skriblovsky
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/hid.h>
#include "hid-ids.h"
/* Fixed Mi Silent Mouse report descriptor */
/* Button's Usage Maximum changed from 3 to 5 to make side buttons work */
#define MI_SILENT_MOUSE_ORIG_RDESC_LENGTH 87
static __u8 mi_silent_mouse_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x03, /* Report ID (3), */
0x09, 0x01, /* Usage (Pointer), */
0xA1, 0x00, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x05, /* X */ /* Usage Maximum (05h), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x03, /* Report Size (3), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x06, 0x01, 0xFF, /* Usage Page (FF01h), */
0x09, 0x01, /* Usage (01h), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x05, /* Report ID (5), */
0x09, 0x05, /* Usage (05h), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x04, /* Report Count (4), */
0xB1, 0x02, /* Feature (Variable), */
0xC0 /* End Collection */
};
static __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_MI_SILENT_MOUSE:
if (*rsize == MI_SILENT_MOUSE_ORIG_RDESC_LENGTH) {
hid_info(hdev, "fixing up Mi Silent Mouse report descriptor\n");
rdesc = mi_silent_mouse_rdesc_fixed;
*rsize = sizeof(mi_silent_mouse_rdesc_fixed);
}
break;
}
return rdesc;
}
static const struct hid_device_id xiaomi_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_XIAOMI, USB_DEVICE_ID_MI_SILENT_MOUSE) },
{ }
};
MODULE_DEVICE_TABLE(hid, xiaomi_devices);
static struct hid_driver xiaomi_driver = {
.name = "xiaomi",
.id_table = xiaomi_devices,
.report_fixup = xiaomi_report_fixup,
};
module_hid_driver(xiaomi_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ilya Skriblovsky <[email protected]>");
MODULE_DESCRIPTION("Fixing side buttons of Xiaomi Mi Silent Mouse");
| linux-master | drivers/hid/hid-xiaomi.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Kye/Genius devices not fully compliant with HID standard
*
* Copyright (c) 2009 Jiri Kosina
* Copyright (c) 2009 Tomas Hanak
* Copyright (c) 2012 Nikolai Kondrashov
* Copyright (c) 2023 David Yang
*/
#include <asm-generic/unaligned.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* Data gathered from Database/VID0458_PID????/Vista/TBoard/default.xml in ioTablet driver
*
* TODO:
* - Add battery and sleep support for EasyPen M406W and MousePen M508WX
* - Investigate ScrollZ.MiceFMT buttons of EasyPen M406
*/
static const __u8 easypen_m406_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x45, 0x02, /* Usage (AC Rotate), */
0x09, 0x40, /* Usage (Menu), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x46, 0x02, /* Usage (AC Resize), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x24, 0x02, /* Usage (AC Back), */
0x0A, 0x25, 0x02, /* Usage (AC Forward), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x30, /* Report Count (48), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 easypen_m506_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x34, /* Report Count (52), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 easypen_m406w_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x01, 0x02, /* Usage (AC New), */
0x09, 0x40, /* Usage (Menu), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x34, /* Report Count (52), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 easypen_m610x_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x79, 0x02, /* Usage (AC Redo Or Repeat), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x34, /* Report Count (52), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 pensketch_m912_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x05, 0x0C, /* Usage Page (Consumer), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x01, 0x02, /* Usage (AC New), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x25, 0x02, /* Usage (AC Forward), */
0x0A, 0x24, 0x02, /* Usage (AC Back), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x30, /* Report Count (48), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
static const __u8 mousepen_m508wx_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x34, /* Report Count (52), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 mousepen_m508x_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x01, 0x02, /* Usage (AC New), */
0x09, 0x40, /* Usage (Menu), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x01, /* Input (Constant), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x95, 0x10, /* Report Count (16), */
0x81, 0x01, /* Input (Constant), */
0x0A, 0x35, 0x02, /* Usage (AC Scroll), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x38, 0x02, /* Usage (AC Pan), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
static const __u8 easypen_m406xe_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x0A, 0x79, 0x02, /* Usage (AC Redo Or Repeat), */
0x0A, 0x1A, 0x02, /* Usage (AC Undo), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x34, /* Report Count (52), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
static const __u8 pensketch_t609a_control_rdesc[] = {
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x12, /* Report ID (18), */
0x0A, 0x6A, 0x02, /* Usage (AC Delete), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x37, /* Report Count (55), */
0x81, 0x01, /* Input (Constant), */
0xC0 /* End Collection */
};
/* Fix indexes in kye_tablet_fixup if you change this */
static const __u8 kye_tablet_rdesc[] = {
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x05, /* Report ID (5), */
0x09, 0x01, /* Usage (01h), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x07, /* Report Count (7), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x01, /* Usage (Digitizer), */
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), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (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), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x27, 0xFF, 0x7F, 0x00, 0x00, /* Logical Maximum (32767), */
0x34, /* Physical Minimum (0), */
0x47, 0x00, 0x00, 0x00, 0x00, /* Physical Maximum (0), */
0x65, 0x11, /* Unit (Centimeter), */
0x55, 0x00, /* Unit Exponent (0), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x27, 0xFF, 0x7F, 0x00, 0x00, /* Logical Maximum (32767), */
0x47, 0x00, 0x00, 0x00, 0x00, /* Physical Maximum (0), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x30, /* Usage (Tip Pressure), */
0x27, 0xFF, 0x07, 0x00, 0x00, /* Logical Maximum (2047), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x21, /* Usage (Puck), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x11, /* Report ID (17), */
0x09, 0x21, /* Usage (Puck), */
0xA0, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x03, /* Usage Maximum (03h), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x32, /* Usage (In Range), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0xA4, /* Push, */
0x09, 0x30, /* Usage (X), */
0x27, 0xFF, 0x7F, 0x00, 0x00, /* Logical Maximum (32767), */
0x34, /* Physical Minimum (0), */
0x47, 0x00, 0x00, 0x00, 0x00, /* Physical Maximum (0), */
0x65, 0x11, /* Unit (Centimeter), */
0x55, 0x00, /* Unit Exponent (0), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x27, 0xFF, 0x7F, 0x00, 0x00, /* Logical Maximum (32767), */
0x47, 0x00, 0x00, 0x00, 0x00, /* Physical Maximum (0), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static const struct kye_tablet_info {
__u32 product;
__s32 x_logical_maximum;
__s32 y_logical_maximum;
__s32 pressure_logical_maximum;
__s32 x_physical_maximum;
__s32 y_physical_maximum;
__s8 unit_exponent;
__s8 unit;
bool has_punk;
unsigned int control_rsize;
const __u8 *control_rdesc;
} kye_tablets_info[] = {
{USB_DEVICE_ID_KYE_EASYPEN_M406, /* 0x5005 */
15360, 10240, 1023, 6, 4, 0, 0x13, false,
sizeof(easypen_m406_control_rdesc), easypen_m406_control_rdesc},
{USB_DEVICE_ID_KYE_EASYPEN_M506, /* 0x500F */
24576, 20480, 1023, 6, 5, 0, 0x13, false,
sizeof(easypen_m506_control_rdesc), easypen_m506_control_rdesc},
{USB_DEVICE_ID_KYE_EASYPEN_I405X, /* 0x5010 */
14080, 10240, 1023, 55, 40, -1, 0x13, false},
{USB_DEVICE_ID_KYE_MOUSEPEN_I608X, /* 0x5011 */
20480, 15360, 2047, 8, 6, 0, 0x13, true},
{USB_DEVICE_ID_KYE_EASYPEN_M406W, /* 0x5012 */
15360, 10240, 1023, 6, 4, 0, 0x13, false,
sizeof(easypen_m406w_control_rdesc), easypen_m406w_control_rdesc},
{USB_DEVICE_ID_KYE_EASYPEN_M610X, /* 0x5013 */
40960, 25600, 1023, 1000, 625, -2, 0x13, false,
sizeof(easypen_m610x_control_rdesc), easypen_m610x_control_rdesc},
{USB_DEVICE_ID_KYE_EASYPEN_340, /* 0x5014 */
10240, 7680, 1023, 4, 3, 0, 0x13, false},
{USB_DEVICE_ID_KYE_PENSKETCH_M912, /* 0x5015 */
61440, 46080, 2047, 12, 9, 0, 0x13, true,
sizeof(pensketch_m912_control_rdesc), pensketch_m912_control_rdesc},
{USB_DEVICE_ID_KYE_MOUSEPEN_M508WX, /* 0x5016 */
40960, 25600, 2047, 8, 5, 0, 0x13, true,
sizeof(mousepen_m508wx_control_rdesc), mousepen_m508wx_control_rdesc},
{USB_DEVICE_ID_KYE_MOUSEPEN_M508X, /* 0x5017 */
40960, 25600, 2047, 8, 5, 0, 0x13, true,
sizeof(mousepen_m508x_control_rdesc), mousepen_m508x_control_rdesc},
{USB_DEVICE_ID_KYE_EASYPEN_M406XE, /* 0x5019 */
15360, 10240, 1023, 6, 4, 0, 0x13, false,
sizeof(easypen_m406xe_control_rdesc), easypen_m406xe_control_rdesc},
{USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2, /* 0x501A */
40960, 30720, 2047, 8, 6, 0, 0x13, true},
{USB_DEVICE_ID_KYE_PENSKETCH_T609A, /* 0x501B */
43520, 28160, 1023, 85, 55, -1, 0x13, false,
sizeof(pensketch_t609a_control_rdesc), pensketch_t609a_control_rdesc},
{}
};
static __u8 *kye_consumer_control_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize, int offset, const char *device_name)
{
/*
* the fixup that need to be done:
* - change Usage Maximum in the Consumer Control
* (report ID 3) to a reasonable value
*/
if (*rsize >= offset + 31 &&
/* Usage Page (Consumer Devices) */
rdesc[offset] == 0x05 && rdesc[offset + 1] == 0x0c &&
/* Usage (Consumer Control) */
rdesc[offset + 2] == 0x09 && rdesc[offset + 3] == 0x01 &&
/* Usage Maximum > 12287 */
rdesc[offset + 10] == 0x2a && rdesc[offset + 12] > 0x2f) {
hid_info(hdev, "fixing up %s report descriptor\n", device_name);
rdesc[offset + 12] = 0x2f;
}
return rdesc;
}
/*
* Fix tablet descriptor of so-called "DataFormat 2".
*
* Though we may achieve a usable descriptor from original vendor-defined one,
* some problems exist:
* - Their Logical Maximum never exceed 32767 (7F FF), though device do report
* values greater than that;
* - Physical Maximums are arbitrarily filled (always equal to Logical
* Maximum);
* - Detail for control buttons are not provided (a vendor-defined Usage Page
* with fixed content).
*
* Thus we use a pre-defined parameter table rather than digging it from
* original descriptor.
*
* We may as well write a fallback routine for unrecognized kye tablet, but it's
* clear kye are unlikely to produce new models in the foreseeable future, so we
* simply enumerate all possible models.
*/
static __u8 *kye_tablet_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
{
const struct kye_tablet_info *info;
unsigned int newsize;
if (*rsize < sizeof(kye_tablet_rdesc)) {
hid_warn(hdev,
"tablet report size too small, or kye_tablet_rdesc unexpectedly large\n");
return rdesc;
}
for (info = kye_tablets_info; info->product; info++) {
if (hdev->product == info->product)
break;
}
if (!info->product) {
hid_err(hdev, "tablet unknown, someone forget to add kye_tablet_info entry?\n");
return rdesc;
}
newsize = info->has_punk ? sizeof(kye_tablet_rdesc) : 112;
memcpy(rdesc, kye_tablet_rdesc, newsize);
put_unaligned_le32(info->x_logical_maximum, rdesc + 66);
put_unaligned_le32(info->x_physical_maximum, rdesc + 72);
rdesc[77] = info->unit;
rdesc[79] = info->unit_exponent;
put_unaligned_le32(info->y_logical_maximum, rdesc + 87);
put_unaligned_le32(info->y_physical_maximum, rdesc + 92);
put_unaligned_le32(info->pressure_logical_maximum, rdesc + 104);
if (info->has_punk) {
put_unaligned_le32(info->x_logical_maximum, rdesc + 156);
put_unaligned_le32(info->x_physical_maximum, rdesc + 162);
rdesc[167] = info->unit;
rdesc[169] = info->unit_exponent;
put_unaligned_le32(info->y_logical_maximum, rdesc + 177);
put_unaligned_le32(info->y_physical_maximum, rdesc + 182);
}
if (info->control_rsize) {
if (newsize + info->control_rsize > *rsize)
hid_err(hdev, "control rdesc unexpectedly large");
else {
memcpy(rdesc + newsize, info->control_rdesc, info->control_rsize);
newsize += info->control_rsize;
}
}
*rsize = newsize;
return rdesc;
}
static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_KYE_ERGO_525V:
/* the fixups that need to be done:
* - change led usage page to button for extra buttons
* - report size 8 count 1 must be size 1 count 8 for button
* bitfield
* - change the button usage range to 4-7 for the extra
* buttons
*/
if (*rsize >= 75 &&
rdesc[61] == 0x05 && rdesc[62] == 0x08 &&
rdesc[63] == 0x19 && rdesc[64] == 0x08 &&
rdesc[65] == 0x29 && rdesc[66] == 0x0f &&
rdesc[71] == 0x75 && rdesc[72] == 0x08 &&
rdesc[73] == 0x95 && rdesc[74] == 0x01) {
hid_info(hdev,
"fixing up Kye/Genius Ergo Mouse "
"report descriptor\n");
rdesc[62] = 0x09;
rdesc[64] = 0x04;
rdesc[66] = 0x07;
rdesc[72] = 0x01;
rdesc[74] = 0x08;
}
break;
case USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE:
rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104,
"Genius Gila Gaming Mouse");
break;
case USB_DEVICE_ID_GENIUS_MANTICORE:
rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104,
"Genius Manticore Keyboard");
break;
case USB_DEVICE_ID_GENIUS_GX_IMPERATOR:
rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 83,
"Genius Gx Imperator Keyboard");
break;
case USB_DEVICE_ID_KYE_EASYPEN_M406:
case USB_DEVICE_ID_KYE_EASYPEN_M506:
case USB_DEVICE_ID_KYE_EASYPEN_I405X:
case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
case USB_DEVICE_ID_KYE_EASYPEN_M406W:
case USB_DEVICE_ID_KYE_EASYPEN_M610X:
case USB_DEVICE_ID_KYE_EASYPEN_340:
case USB_DEVICE_ID_KYE_PENSKETCH_M912:
case USB_DEVICE_ID_KYE_MOUSEPEN_M508WX:
case USB_DEVICE_ID_KYE_MOUSEPEN_M508X:
case USB_DEVICE_ID_KYE_EASYPEN_M406XE:
case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2:
case USB_DEVICE_ID_KYE_PENSKETCH_T609A:
rdesc = kye_tablet_fixup(hdev, rdesc, rsize);
break;
}
return rdesc;
}
static int kye_tablet_enable(struct hid_device *hdev)
{
struct list_head *list;
struct list_head *head;
struct hid_report *report;
__s32 *value;
list = &hdev->report_enum[HID_FEATURE_REPORT].report_list;
list_for_each(head, list) {
report = list_entry(head, struct hid_report, list);
if (report->id == 5)
break;
}
if (head == list) {
hid_err(hdev, "tablet-enabling feature report not found\n");
return -ENODEV;
}
if (report->maxfield < 1 || report->field[0]->report_count < 7) {
hid_err(hdev, "invalid tablet-enabling feature report\n");
return -ENODEV;
}
value = report->field[0]->value;
/*
* The code is for DataFormat 2 of config xml. They have no obvious
* meaning (at least not configurable in Windows driver) except enabling
* fully-functional tablet mode (absolute positioning). Otherwise, the
* tablet acts like a relative mouse.
*
* Though there're magic codes for DataFormat 3 and 4, no devices use
* these DataFormats.
*/
value[0] = 0x12;
value[1] = 0x10;
value[2] = 0x11;
value[3] = 0x12;
value[4] = 0x00;
value[5] = 0x00;
value[6] = 0x00;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
return 0;
}
static int kye_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);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
switch (id->product) {
case USB_DEVICE_ID_GENIUS_MANTICORE:
/*
* The manticore keyboard needs to have all the interfaces
* opened at least once to be fully functional.
*/
if (hid_hw_open(hdev))
hid_hw_close(hdev);
break;
case USB_DEVICE_ID_KYE_EASYPEN_M406:
case USB_DEVICE_ID_KYE_EASYPEN_M506:
case USB_DEVICE_ID_KYE_EASYPEN_I405X:
case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
case USB_DEVICE_ID_KYE_EASYPEN_M406W:
case USB_DEVICE_ID_KYE_EASYPEN_M610X:
case USB_DEVICE_ID_KYE_EASYPEN_340:
case USB_DEVICE_ID_KYE_PENSKETCH_M912:
case USB_DEVICE_ID_KYE_MOUSEPEN_M508WX:
case USB_DEVICE_ID_KYE_MOUSEPEN_M508X:
case USB_DEVICE_ID_KYE_EASYPEN_M406XE:
case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2:
case USB_DEVICE_ID_KYE_PENSKETCH_T609A:
ret = kye_tablet_enable(hdev);
if (ret) {
hid_err(hdev, "tablet enabling failed\n");
goto enabling_err;
}
break;
}
return 0;
enabling_err:
hid_hw_stop(hdev);
err:
return ret;
}
static const struct hid_device_id kye_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
{ 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_EASYPEN_M406) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_M506) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_I405X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_M406W) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_M610X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_340) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_PENSKETCH_M912) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_MOUSEPEN_M508WX) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_MOUSEPEN_M508X) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_EASYPEN_M406XE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
USB_DEVICE_ID_KYE_PENSKETCH_T609A) },
{ }
};
MODULE_DEVICE_TABLE(hid, kye_devices);
static struct hid_driver kye_driver = {
.name = "kye",
.id_table = kye_devices,
.probe = kye_probe,
.report_fixup = kye_report_fixup,
};
module_hid_driver(kye_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-kye.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for Google Hammer device.
*
* Copyright (c) 2017 Google Inc.
* Author: Wei-Ning Huang <[email protected]>
*/
/*
* 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/acpi.h>
#include <linux/hid.h>
#include <linux/input/vivaldi-fmap.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/pm_wakeup.h>
#include <asm/unaligned.h>
#include "hid-ids.h"
#include "hid-vivaldi-common.h"
/*
* C(hrome)B(ase)A(ttached)S(witch) - switch exported by Chrome EC and reporting
* state of the "Whiskers" base - attached or detached. Whiskers USB device also
* reports position of the keyboard - folded or not. Combining base state and
* position allows us to generate proper "Tablet mode" events.
*/
struct cbas_ec {
struct device *dev; /* The platform device (EC) */
struct input_dev *input;
bool base_present;
bool base_folded;
struct notifier_block notifier;
};
static struct cbas_ec cbas_ec;
static DEFINE_SPINLOCK(cbas_ec_lock);
static DEFINE_MUTEX(cbas_ec_reglock);
static bool cbas_parse_base_state(const void *data)
{
u32 switches = get_unaligned_le32(data);
return !!(switches & BIT(EC_MKBP_BASE_ATTACHED));
}
static int cbas_ec_query_base(struct cros_ec_device *ec_dev, bool get_state,
bool *state)
{
struct ec_params_mkbp_info *params;
struct cros_ec_command *msg;
int ret;
msg = kzalloc(struct_size(msg, data, max(sizeof(u32), sizeof(*params))),
GFP_KERNEL);
if (!msg)
return -ENOMEM;
msg->command = EC_CMD_MKBP_INFO;
msg->version = 1;
msg->outsize = sizeof(*params);
msg->insize = sizeof(u32);
params = (struct ec_params_mkbp_info *)msg->data;
params->info_type = get_state ?
EC_MKBP_INFO_CURRENT : EC_MKBP_INFO_SUPPORTED;
params->event_type = EC_MKBP_EVENT_SWITCH;
ret = cros_ec_cmd_xfer_status(ec_dev, msg);
if (ret >= 0) {
if (ret != sizeof(u32)) {
dev_warn(ec_dev->dev, "wrong result size: %d != %zu\n",
ret, sizeof(u32));
ret = -EPROTO;
} else {
*state = cbas_parse_base_state(msg->data);
ret = 0;
}
}
kfree(msg);
return ret;
}
static int cbas_ec_notify(struct notifier_block *nb,
unsigned long queued_during_suspend,
void *_notify)
{
struct cros_ec_device *ec = _notify;
unsigned long flags;
bool base_present;
if (ec->event_data.event_type == EC_MKBP_EVENT_SWITCH) {
base_present = cbas_parse_base_state(
&ec->event_data.data.switches);
dev_dbg(cbas_ec.dev,
"%s: base: %d\n", __func__, base_present);
if (device_may_wakeup(cbas_ec.dev) ||
!queued_during_suspend) {
pm_wakeup_event(cbas_ec.dev, 0);
spin_lock_irqsave(&cbas_ec_lock, flags);
/*
* While input layer dedupes the events, we do not want
* to disrupt the state reported by the base by
* overriding it with state reported by the LID. Only
* report changes, as we assume that on attach the base
* is not folded.
*/
if (base_present != cbas_ec.base_present) {
input_report_switch(cbas_ec.input,
SW_TABLET_MODE,
!base_present);
input_sync(cbas_ec.input);
cbas_ec.base_present = base_present;
}
spin_unlock_irqrestore(&cbas_ec_lock, flags);
}
}
return NOTIFY_OK;
}
static __maybe_unused int cbas_ec_resume(struct device *dev)
{
struct cros_ec_device *ec = dev_get_drvdata(dev->parent);
bool base_present;
int error;
error = cbas_ec_query_base(ec, true, &base_present);
if (error) {
dev_warn(dev, "failed to fetch base state on resume: %d\n",
error);
} else {
spin_lock_irq(&cbas_ec_lock);
cbas_ec.base_present = base_present;
/*
* Only report if base is disconnected. If base is connected,
* it will resend its state on resume, and we'll update it
* in hammer_event().
*/
if (!cbas_ec.base_present) {
input_report_switch(cbas_ec.input, SW_TABLET_MODE, 1);
input_sync(cbas_ec.input);
}
spin_unlock_irq(&cbas_ec_lock);
}
return 0;
}
static SIMPLE_DEV_PM_OPS(cbas_ec_pm_ops, NULL, cbas_ec_resume);
static void cbas_ec_set_input(struct input_dev *input)
{
/* Take the lock so hammer_event() does not race with us here */
spin_lock_irq(&cbas_ec_lock);
cbas_ec.input = input;
spin_unlock_irq(&cbas_ec_lock);
}
static int __cbas_ec_probe(struct platform_device *pdev)
{
struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
struct input_dev *input;
bool base_supported;
int error;
error = cbas_ec_query_base(ec, false, &base_supported);
if (error)
return error;
if (!base_supported)
return -ENXIO;
input = devm_input_allocate_device(&pdev->dev);
if (!input)
return -ENOMEM;
input->name = "Whiskers Tablet Mode Switch";
input->id.bustype = BUS_HOST;
input_set_capability(input, EV_SW, SW_TABLET_MODE);
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev, "cannot register input device: %d\n",
error);
return error;
}
/* Seed the state */
error = cbas_ec_query_base(ec, true, &cbas_ec.base_present);
if (error) {
dev_err(&pdev->dev, "cannot query base state: %d\n", error);
return error;
}
if (!cbas_ec.base_present)
cbas_ec.base_folded = false;
dev_dbg(&pdev->dev, "%s: base: %d, folded: %d\n", __func__,
cbas_ec.base_present, cbas_ec.base_folded);
input_report_switch(input, SW_TABLET_MODE,
!cbas_ec.base_present || cbas_ec.base_folded);
cbas_ec_set_input(input);
cbas_ec.dev = &pdev->dev;
cbas_ec.notifier.notifier_call = cbas_ec_notify;
error = blocking_notifier_chain_register(&ec->event_notifier,
&cbas_ec.notifier);
if (error) {
dev_err(&pdev->dev, "cannot register notifier: %d\n", error);
cbas_ec_set_input(NULL);
return error;
}
device_init_wakeup(&pdev->dev, true);
return 0;
}
static int cbas_ec_probe(struct platform_device *pdev)
{
int retval;
mutex_lock(&cbas_ec_reglock);
if (cbas_ec.input) {
retval = -EBUSY;
goto out;
}
retval = __cbas_ec_probe(pdev);
out:
mutex_unlock(&cbas_ec_reglock);
return retval;
}
static int cbas_ec_remove(struct platform_device *pdev)
{
struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
mutex_lock(&cbas_ec_reglock);
blocking_notifier_chain_unregister(&ec->event_notifier,
&cbas_ec.notifier);
cbas_ec_set_input(NULL);
mutex_unlock(&cbas_ec_reglock);
return 0;
}
static const struct acpi_device_id cbas_ec_acpi_ids[] = {
{ "GOOG000B", 0 },
{ }
};
MODULE_DEVICE_TABLE(acpi, cbas_ec_acpi_ids);
#ifdef CONFIG_OF
static const struct of_device_id cbas_ec_of_match[] = {
{ .compatible = "google,cros-cbas" },
{ },
};
MODULE_DEVICE_TABLE(of, cbas_ec_of_match);
#endif
static struct platform_driver cbas_ec_driver = {
.probe = cbas_ec_probe,
.remove = cbas_ec_remove,
.driver = {
.name = "cbas_ec",
.acpi_match_table = ACPI_PTR(cbas_ec_acpi_ids),
.of_match_table = of_match_ptr(cbas_ec_of_match),
.pm = &cbas_ec_pm_ops,
},
};
#define MAX_BRIGHTNESS 100
struct hammer_kbd_leds {
struct led_classdev cdev;
struct hid_device *hdev;
u8 buf[2] ____cacheline_aligned;
};
static int hammer_kbd_brightness_set_blocking(struct led_classdev *cdev,
enum led_brightness br)
{
struct hammer_kbd_leds *led = container_of(cdev,
struct hammer_kbd_leds,
cdev);
int ret;
led->buf[0] = 0;
led->buf[1] = br;
/*
* Request USB HID device to be in Full On mode, so that sending
* hardware output report and hardware raw request won't fail.
*/
ret = hid_hw_power(led->hdev, PM_HINT_FULLON);
if (ret < 0) {
hid_err(led->hdev, "failed: device not resumed %d\n", ret);
return ret;
}
ret = hid_hw_output_report(led->hdev, led->buf, sizeof(led->buf));
if (ret == -ENOSYS)
ret = hid_hw_raw_request(led->hdev, 0, led->buf,
sizeof(led->buf),
HID_OUTPUT_REPORT,
HID_REQ_SET_REPORT);
if (ret < 0)
hid_err(led->hdev, "failed to set keyboard backlight: %d\n",
ret);
/* Request USB HID device back to Normal Mode. */
hid_hw_power(led->hdev, PM_HINT_NORMAL);
return ret;
}
static int hammer_register_leds(struct hid_device *hdev)
{
struct hammer_kbd_leds *kbd_backlight;
kbd_backlight = devm_kzalloc(&hdev->dev, sizeof(*kbd_backlight),
GFP_KERNEL);
if (!kbd_backlight)
return -ENOMEM;
kbd_backlight->hdev = hdev;
kbd_backlight->cdev.name = "hammer::kbd_backlight";
kbd_backlight->cdev.max_brightness = MAX_BRIGHTNESS;
kbd_backlight->cdev.brightness_set_blocking =
hammer_kbd_brightness_set_blocking;
kbd_backlight->cdev.flags = LED_HW_PLUGGABLE;
/* Set backlight to 0% initially. */
hammer_kbd_brightness_set_blocking(&kbd_backlight->cdev, 0);
return devm_led_classdev_register(&hdev->dev, &kbd_backlight->cdev);
}
#define HID_UP_GOOGLEVENDOR 0xffd10000
#define HID_VD_KBD_FOLDED 0x00000019
#define HID_USAGE_KBD_FOLDED (HID_UP_GOOGLEVENDOR | HID_VD_KBD_FOLDED)
/* HID usage for keyboard backlight (Alphanumeric display brightness) */
#define HID_AD_BRIGHTNESS 0x00140046
static int hammer_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_KBD_FOLDED) {
/*
* We do not want to have this usage mapped as it will get
* mixed in with "base attached" signal and delivered over
* separate input device for tablet switch mode.
*/
return -1;
}
return 0;
}
static void hammer_folded_event(struct hid_device *hdev, bool folded)
{
unsigned long flags;
spin_lock_irqsave(&cbas_ec_lock, flags);
/*
* If we are getting events from Whiskers that means that it
* is attached to the lid.
*/
cbas_ec.base_present = true;
cbas_ec.base_folded = folded;
hid_dbg(hdev, "%s: base: %d, folded: %d\n", __func__,
cbas_ec.base_present, cbas_ec.base_folded);
if (cbas_ec.input) {
input_report_switch(cbas_ec.input, SW_TABLET_MODE, folded);
input_sync(cbas_ec.input);
}
spin_unlock_irqrestore(&cbas_ec_lock, flags);
}
static int hammer_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (usage->hid == HID_USAGE_KBD_FOLDED) {
hammer_folded_event(hid, value);
return 1; /* We handled this event */
}
return 0;
}
static bool hammer_has_usage(struct hid_device *hdev, unsigned int report_type,
unsigned application, unsigned usage)
{
struct hid_report_enum *re = &hdev->report_enum[report_type];
struct hid_report *report;
int i, j;
list_for_each_entry(report, &re->report_list, list) {
if (report->application != application)
continue;
for (i = 0; i < report->maxfield; i++) {
struct hid_field *field = report->field[i];
for (j = 0; j < field->maxusage; j++)
if (field->usage[j].hid == usage)
return true;
}
}
return false;
}
static bool hammer_has_folded_event(struct hid_device *hdev)
{
return hammer_has_usage(hdev, HID_INPUT_REPORT,
HID_GD_KEYBOARD, HID_USAGE_KBD_FOLDED);
}
static bool hammer_has_backlight_control(struct hid_device *hdev)
{
return hammer_has_usage(hdev, HID_OUTPUT_REPORT,
HID_GD_KEYBOARD, HID_AD_BRIGHTNESS);
}
static void hammer_get_folded_state(struct hid_device *hdev)
{
struct hid_report *report;
char *buf;
int len, rlen;
int a;
report = hdev->report_enum[HID_INPUT_REPORT].report_id_hash[0x0];
if (!report || report->maxfield < 1)
return;
len = hid_report_len(report) + 1;
buf = kmalloc(len, GFP_KERNEL);
if (!buf)
return;
rlen = hid_hw_raw_request(hdev, report->id, buf, len, report->type, HID_REQ_GET_REPORT);
if (rlen != len) {
hid_warn(hdev, "Unable to read base folded state: %d (expected %d)\n", rlen, len);
goto out;
}
for (a = 0; a < report->maxfield; a++) {
struct hid_field *field = report->field[a];
if (field->usage->hid == HID_USAGE_KBD_FOLDED) {
u32 value = hid_field_extract(hdev, buf+1,
field->report_offset, field->report_size);
hammer_folded_event(hdev, value);
break;
}
}
out:
kfree(buf);
}
static void hammer_stop(void *hdev)
{
hid_hw_stop(hdev);
}
static int hammer_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
struct vivaldi_data *vdata;
int error;
vdata = devm_kzalloc(&hdev->dev, sizeof(*vdata), GFP_KERNEL);
if (!vdata)
return -ENOMEM;
hid_set_drvdata(hdev, vdata);
error = hid_parse(hdev);
if (error)
return error;
error = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (error)
return error;
error = devm_add_action(&hdev->dev, hammer_stop, hdev);
if (error)
return error;
/*
* We always want to poll for, and handle tablet mode events from
* devices that have folded usage, even when nobody has opened the input
* device. This also prevents the hid core from dropping early tablet
* mode events from the device.
*/
if (hammer_has_folded_event(hdev)) {
hdev->quirks |= HID_QUIRK_ALWAYS_POLL;
error = hid_hw_open(hdev);
if (error)
return error;
hammer_get_folded_state(hdev);
}
if (hammer_has_backlight_control(hdev)) {
error = hammer_register_leds(hdev);
if (error)
hid_warn(hdev,
"Failed to register keyboard backlight: %d\n",
error);
}
return 0;
}
static void hammer_remove(struct hid_device *hdev)
{
unsigned long flags;
if (hammer_has_folded_event(hdev)) {
hid_hw_close(hdev);
/*
* If we are disconnecting then most likely Whiskers is
* being removed. Even if it is not removed, without proper
* keyboard we should not stay in clamshell mode.
*
* The reason for doing it here and not waiting for signal
* from EC, is that on some devices there are high leakage
* on Whiskers pins and we do not detect disconnect reliably,
* resulting in devices being stuck in clamshell mode.
*/
spin_lock_irqsave(&cbas_ec_lock, flags);
if (cbas_ec.input && cbas_ec.base_present) {
input_report_switch(cbas_ec.input, SW_TABLET_MODE, 1);
input_sync(cbas_ec.input);
}
cbas_ec.base_present = false;
spin_unlock_irqrestore(&cbas_ec_lock, flags);
}
/* Unregistering LEDs and stopping the hardware is done via devm */
}
static const struct hid_device_id hammer_devices[] = {
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_DON) },
{ HID_DEVICE(BUS_USB, HID_GROUP_VIVALDI,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_EEL) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_HAMMER) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_JEWEL) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MAGNEMITE) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MASTERBALL) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MOONBALL) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STAFF) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_WAND) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_WHISKERS) },
{ }
};
MODULE_DEVICE_TABLE(hid, hammer_devices);
static struct hid_driver hammer_driver = {
.name = "hammer",
.id_table = hammer_devices,
.probe = hammer_probe,
.remove = hammer_remove,
.feature_mapping = vivaldi_feature_mapping,
.input_mapping = hammer_input_mapping,
.event = hammer_event,
.driver = {
.dev_groups = vivaldi_attribute_groups,
},
};
static int __init hammer_init(void)
{
int error;
error = platform_driver_register(&cbas_ec_driver);
if (error)
return error;
error = hid_register_driver(&hammer_driver);
if (error) {
platform_driver_unregister(&cbas_ec_driver);
return error;
}
return 0;
}
module_init(hammer_init);
static void __exit hammer_exit(void)
{
hid_unregister_driver(&hammer_driver);
platform_driver_unregister(&cbas_ec_driver);
}
module_exit(hammer_exit);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-google-hammer.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for THQ PS3 uDraw tablet
*
* Copyright (C) 2016 Red Hat Inc. All Rights Reserved
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Bastien Nocera <[email protected]>");
MODULE_DESCRIPTION("PS3 uDraw tablet driver");
MODULE_LICENSE("GPL");
/*
* Protocol information from:
* https://brandonw.net/udraw/
* and the source code of:
* https://vvvv.org/contribution/udraw-hid
*/
/*
* The device is setup with multiple input devices:
* - the touch area which works as a touchpad
* - the tablet area which works as a touchpad/drawing tablet
* - a joypad with a d-pad, and 7 buttons
* - an accelerometer device
*/
enum {
TOUCH_NONE,
TOUCH_PEN,
TOUCH_FINGER,
TOUCH_TWOFINGER
};
enum {
AXIS_X,
AXIS_Y,
AXIS_Z
};
/*
* Accelerometer min/max values
* in order, X, Y and Z
*/
static struct {
int min;
int max;
} accel_limits[] = {
[AXIS_X] = { 490, 534 },
[AXIS_Y] = { 490, 534 },
[AXIS_Z] = { 492, 536 }
};
#define DEVICE_NAME "THQ uDraw Game Tablet for PS3"
/* resolution in pixels */
#define RES_X 1920
#define RES_Y 1080
/* size in mm */
#define WIDTH 160
#define HEIGHT 90
#define PRESSURE_OFFSET 113
#define MAX_PRESSURE (255 - PRESSURE_OFFSET)
struct udraw {
struct input_dev *joy_input_dev;
struct input_dev *touch_input_dev;
struct input_dev *pen_input_dev;
struct input_dev *accel_input_dev;
struct hid_device *hdev;
/*
* The device's two-finger support is pretty unreliable, as
* the device could report a single touch when the two fingers
* are too close together, and the distance between fingers, even
* though reported is not in the same unit as the touches.
*
* We'll make do without it, and try to report the first touch
* as reliably as possible.
*/
int last_one_finger_x;
int last_one_finger_y;
int last_two_finger_x;
int last_two_finger_y;
};
static int clamp_accel(int axis, int offset)
{
axis = clamp(axis,
accel_limits[offset].min,
accel_limits[offset].max);
axis = (axis - accel_limits[offset].min) /
((accel_limits[offset].max -
accel_limits[offset].min) * 0xFF);
return axis;
}
static int udraw_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int len)
{
struct udraw *udraw = hid_get_drvdata(hdev);
int touch;
int x, y, z;
if (len != 27)
return 0;
if (data[11] == 0x00)
touch = TOUCH_NONE;
else if (data[11] == 0x40)
touch = TOUCH_PEN;
else if (data[11] == 0x80)
touch = TOUCH_FINGER;
else
touch = TOUCH_TWOFINGER;
/* joypad */
input_report_key(udraw->joy_input_dev, BTN_WEST, data[0] & 1);
input_report_key(udraw->joy_input_dev, BTN_SOUTH, !!(data[0] & 2));
input_report_key(udraw->joy_input_dev, BTN_EAST, !!(data[0] & 4));
input_report_key(udraw->joy_input_dev, BTN_NORTH, !!(data[0] & 8));
input_report_key(udraw->joy_input_dev, BTN_SELECT, !!(data[1] & 1));
input_report_key(udraw->joy_input_dev, BTN_START, !!(data[1] & 2));
input_report_key(udraw->joy_input_dev, BTN_MODE, !!(data[1] & 16));
x = y = 0;
switch (data[2]) {
case 0x0:
y = -127;
break;
case 0x1:
y = -127;
x = 127;
break;
case 0x2:
x = 127;
break;
case 0x3:
y = 127;
x = 127;
break;
case 0x4:
y = 127;
break;
case 0x5:
y = 127;
x = -127;
break;
case 0x6:
x = -127;
break;
case 0x7:
y = -127;
x = -127;
break;
default:
break;
}
input_report_abs(udraw->joy_input_dev, ABS_X, x);
input_report_abs(udraw->joy_input_dev, ABS_Y, y);
input_sync(udraw->joy_input_dev);
/* For pen and touchpad */
x = y = 0;
if (touch != TOUCH_NONE) {
if (data[15] != 0x0F)
x = data[15] * 256 + data[17];
if (data[16] != 0x0F)
y = data[16] * 256 + data[18];
}
if (touch == TOUCH_FINGER) {
/* Save the last one-finger touch */
udraw->last_one_finger_x = x;
udraw->last_one_finger_y = y;
udraw->last_two_finger_x = -1;
udraw->last_two_finger_y = -1;
} else if (touch == TOUCH_TWOFINGER) {
/*
* We have a problem because x/y is the one for the
* second finger but we want the first finger given
* to user-space otherwise it'll look as if it jumped.
*
* See the udraw struct definition for why this was
* implemented this way.
*/
if (udraw->last_two_finger_x == -1) {
/* Save the position of the 2nd finger */
udraw->last_two_finger_x = x;
udraw->last_two_finger_y = y;
x = udraw->last_one_finger_x;
y = udraw->last_one_finger_y;
} else {
/*
* Offset the 2-finger coords using the
* saved data from the first finger
*/
x = x - (udraw->last_two_finger_x
- udraw->last_one_finger_x);
y = y - (udraw->last_two_finger_y
- udraw->last_one_finger_y);
}
}
/* touchpad */
if (touch == TOUCH_FINGER || touch == TOUCH_TWOFINGER) {
input_report_key(udraw->touch_input_dev, BTN_TOUCH, 1);
input_report_key(udraw->touch_input_dev, BTN_TOOL_FINGER,
touch == TOUCH_FINGER);
input_report_key(udraw->touch_input_dev, BTN_TOOL_DOUBLETAP,
touch == TOUCH_TWOFINGER);
input_report_abs(udraw->touch_input_dev, ABS_X, x);
input_report_abs(udraw->touch_input_dev, ABS_Y, y);
} else {
input_report_key(udraw->touch_input_dev, BTN_TOUCH, 0);
input_report_key(udraw->touch_input_dev, BTN_TOOL_FINGER, 0);
input_report_key(udraw->touch_input_dev, BTN_TOOL_DOUBLETAP, 0);
}
input_sync(udraw->touch_input_dev);
/* pen */
if (touch == TOUCH_PEN) {
int level;
level = clamp(data[13] - PRESSURE_OFFSET,
0, MAX_PRESSURE);
input_report_key(udraw->pen_input_dev, BTN_TOUCH, (level != 0));
input_report_key(udraw->pen_input_dev, BTN_TOOL_PEN, 1);
input_report_abs(udraw->pen_input_dev, ABS_PRESSURE, level);
input_report_abs(udraw->pen_input_dev, ABS_X, x);
input_report_abs(udraw->pen_input_dev, ABS_Y, y);
} else {
input_report_key(udraw->pen_input_dev, BTN_TOUCH, 0);
input_report_key(udraw->pen_input_dev, BTN_TOOL_PEN, 0);
input_report_abs(udraw->pen_input_dev, ABS_PRESSURE, 0);
}
input_sync(udraw->pen_input_dev);
/* accel */
x = (data[19] + (data[20] << 8));
x = clamp_accel(x, AXIS_X);
y = (data[21] + (data[22] << 8));
y = clamp_accel(y, AXIS_Y);
z = (data[23] + (data[24] << 8));
z = clamp_accel(z, AXIS_Z);
input_report_abs(udraw->accel_input_dev, ABS_X, x);
input_report_abs(udraw->accel_input_dev, ABS_Y, y);
input_report_abs(udraw->accel_input_dev, ABS_Z, z);
input_sync(udraw->accel_input_dev);
/* let hidraw and hiddev handle the report */
return 0;
}
static int udraw_open(struct input_dev *dev)
{
struct udraw *udraw = input_get_drvdata(dev);
return hid_hw_open(udraw->hdev);
}
static void udraw_close(struct input_dev *dev)
{
struct udraw *udraw = input_get_drvdata(dev);
hid_hw_close(udraw->hdev);
}
static struct input_dev *allocate_and_setup(struct hid_device *hdev,
const char *name)
{
struct input_dev *input_dev;
input_dev = devm_input_allocate_device(&hdev->dev);
if (!input_dev)
return NULL;
input_dev->name = name;
input_dev->phys = hdev->phys;
input_dev->dev.parent = &hdev->dev;
input_dev->open = udraw_open;
input_dev->close = udraw_close;
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_set_drvdata(input_dev, hid_get_drvdata(hdev));
return input_dev;
}
static bool udraw_setup_touch(struct udraw *udraw,
struct hid_device *hdev)
{
struct input_dev *input_dev;
input_dev = allocate_and_setup(hdev, DEVICE_NAME " Touchpad");
if (!input_dev)
return false;
input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
input_set_abs_params(input_dev, ABS_X, 0, RES_X, 1, 0);
input_abs_set_res(input_dev, ABS_X, RES_X / WIDTH);
input_set_abs_params(input_dev, ABS_Y, 0, RES_Y, 1, 0);
input_abs_set_res(input_dev, ABS_Y, RES_Y / HEIGHT);
set_bit(BTN_TOUCH, input_dev->keybit);
set_bit(BTN_TOOL_FINGER, input_dev->keybit);
set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
set_bit(INPUT_PROP_POINTER, input_dev->propbit);
udraw->touch_input_dev = input_dev;
return true;
}
static bool udraw_setup_pen(struct udraw *udraw,
struct hid_device *hdev)
{
struct input_dev *input_dev;
input_dev = allocate_and_setup(hdev, DEVICE_NAME " Pen");
if (!input_dev)
return false;
input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
input_set_abs_params(input_dev, ABS_X, 0, RES_X, 1, 0);
input_abs_set_res(input_dev, ABS_X, RES_X / WIDTH);
input_set_abs_params(input_dev, ABS_Y, 0, RES_Y, 1, 0);
input_abs_set_res(input_dev, ABS_Y, RES_Y / HEIGHT);
input_set_abs_params(input_dev, ABS_PRESSURE,
0, MAX_PRESSURE, 0, 0);
set_bit(BTN_TOUCH, input_dev->keybit);
set_bit(BTN_TOOL_PEN, input_dev->keybit);
set_bit(INPUT_PROP_POINTER, input_dev->propbit);
udraw->pen_input_dev = input_dev;
return true;
}
static bool udraw_setup_accel(struct udraw *udraw,
struct hid_device *hdev)
{
struct input_dev *input_dev;
input_dev = allocate_and_setup(hdev, DEVICE_NAME " Accelerometer");
if (!input_dev)
return false;
input_dev->evbit[0] = BIT(EV_ABS);
/* 1G accel is reported as ~256, so clamp to 2G */
input_set_abs_params(input_dev, ABS_X, -512, 512, 0, 0);
input_set_abs_params(input_dev, ABS_Y, -512, 512, 0, 0);
input_set_abs_params(input_dev, ABS_Z, -512, 512, 0, 0);
set_bit(INPUT_PROP_ACCELEROMETER, input_dev->propbit);
udraw->accel_input_dev = input_dev;
return true;
}
static bool udraw_setup_joypad(struct udraw *udraw,
struct hid_device *hdev)
{
struct input_dev *input_dev;
input_dev = allocate_and_setup(hdev, DEVICE_NAME " Joypad");
if (!input_dev)
return false;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
set_bit(BTN_SOUTH, input_dev->keybit);
set_bit(BTN_NORTH, input_dev->keybit);
set_bit(BTN_EAST, input_dev->keybit);
set_bit(BTN_WEST, input_dev->keybit);
set_bit(BTN_SELECT, input_dev->keybit);
set_bit(BTN_START, input_dev->keybit);
set_bit(BTN_MODE, input_dev->keybit);
input_set_abs_params(input_dev, ABS_X, -127, 127, 0, 0);
input_set_abs_params(input_dev, ABS_Y, -127, 127, 0, 0);
udraw->joy_input_dev = input_dev;
return true;
}
static int udraw_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct udraw *udraw;
int ret;
udraw = devm_kzalloc(&hdev->dev, sizeof(struct udraw), GFP_KERNEL);
if (!udraw)
return -ENOMEM;
udraw->hdev = hdev;
udraw->last_two_finger_x = -1;
udraw->last_two_finger_y = -1;
hid_set_drvdata(hdev, udraw);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
if (!udraw_setup_joypad(udraw, hdev) ||
!udraw_setup_touch(udraw, hdev) ||
!udraw_setup_pen(udraw, hdev) ||
!udraw_setup_accel(udraw, hdev)) {
hid_err(hdev, "could not allocate interfaces\n");
return -ENOMEM;
}
ret = input_register_device(udraw->joy_input_dev) ||
input_register_device(udraw->touch_input_dev) ||
input_register_device(udraw->pen_input_dev) ||
input_register_device(udraw->accel_input_dev);
if (ret) {
hid_err(hdev, "failed to register interfaces\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW | HID_CONNECT_DRIVER);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static const struct hid_device_id udraw_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_THQ, USB_DEVICE_ID_THQ_PS3_UDRAW) },
{ }
};
MODULE_DEVICE_TABLE(hid, udraw_devices);
static struct hid_driver udraw_driver = {
.name = "hid-udraw",
.id_table = udraw_devices,
.raw_event = udraw_raw_event,
.probe = udraw_probe,
};
module_hid_driver(udraw_driver);
| linux-master | drivers/hid/hid-udraw-ps3.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat Pyra driver for Linux
*
* Copyright (c) 2010 Stefan Achatz <[email protected]>
*/
/*
*/
/*
* Roccat Pyra is a mobile gamer mouse which comes in wired and wireless
* variant. Wireless variant is not tested.
* Userland tools can be found at http://sourceforge.net/projects/roccat
*/
#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-pyra.h"
static uint profile_numbers[5] = {0, 1, 2, 3, 4};
static void profile_activated(struct pyra_device *pyra,
unsigned int new_profile)
{
if (new_profile >= ARRAY_SIZE(pyra->profile_settings))
return;
pyra->actual_profile = new_profile;
pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi;
}
static int pyra_send_control(struct usb_device *usb_dev, int value,
enum pyra_control_requests request)
{
struct roccat_common2_control control;
if ((request == PYRA_CONTROL_REQUEST_PROFILE_SETTINGS ||
request == PYRA_CONTROL_REQUEST_PROFILE_BUTTONS) &&
(value < 0 || value > 4))
return -EINVAL;
control.command = ROCCAT_COMMON_COMMAND_CONTROL;
control.value = value;
control.request = request;
return roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
&control, sizeof(struct roccat_common2_control));
}
static int pyra_get_profile_settings(struct usb_device *usb_dev,
struct pyra_profile_settings *buf, int number)
{
int retval;
retval = pyra_send_control(usb_dev, number,
PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
if (retval)
return retval;
return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_SETTINGS,
buf, PYRA_SIZE_PROFILE_SETTINGS);
}
static int pyra_get_settings(struct usb_device *usb_dev,
struct pyra_settings *buf)
{
return roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
buf, PYRA_SIZE_SETTINGS);
}
static int pyra_set_settings(struct usb_device *usb_dev,
struct pyra_settings const *settings)
{
return roccat_common2_send_with_status(usb_dev,
PYRA_COMMAND_SETTINGS, settings,
PYRA_SIZE_SETTINGS);
}
static ssize_t pyra_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 pyra_device *pyra = 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(&pyra->pyra_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&pyra->pyra_lock);
if (retval)
return retval;
return real_size;
}
static ssize_t pyra_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 pyra_device *pyra = 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(&pyra->pyra_lock);
retval = roccat_common2_send_with_status(usb_dev, command, (void *)buf, real_size);
mutex_unlock(&pyra->pyra_lock);
if (retval)
return retval;
return real_size;
}
#define PYRA_SYSFS_W(thingy, THINGY) \
static ssize_t pyra_sysfs_write_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return pyra_sysfs_write(fp, kobj, buf, off, count, \
PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
}
#define PYRA_SYSFS_R(thingy, THINGY) \
static ssize_t pyra_sysfs_read_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, char *buf, \
loff_t off, size_t count) \
{ \
return pyra_sysfs_read(fp, kobj, buf, off, count, \
PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \
}
#define PYRA_SYSFS_RW(thingy, THINGY) \
PYRA_SYSFS_W(thingy, THINGY) \
PYRA_SYSFS_R(thingy, THINGY)
#define PYRA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
PYRA_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = PYRA_SIZE_ ## THINGY, \
.read = pyra_sysfs_read_ ## thingy, \
.write = pyra_sysfs_write_ ## thingy \
}
#define PYRA_BIN_ATTRIBUTE_R(thingy, THINGY) \
PYRA_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0440 }, \
.size = PYRA_SIZE_ ## THINGY, \
.read = pyra_sysfs_read_ ## thingy, \
}
#define PYRA_BIN_ATTRIBUTE_W(thingy, THINGY) \
PYRA_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
.attr = { .name = #thingy, .mode = 0220 }, \
.size = PYRA_SIZE_ ## THINGY, \
.write = pyra_sysfs_write_ ## thingy \
}
PYRA_BIN_ATTRIBUTE_W(control, CONTROL);
PYRA_BIN_ATTRIBUTE_RW(info, INFO);
PYRA_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
PYRA_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
static ssize_t pyra_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 = pyra_send_control(usb_dev, *(uint *)(attr->private),
PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
if (retval)
return retval;
return pyra_sysfs_read(fp, kobj, buf, off, count,
PYRA_SIZE_PROFILE_SETTINGS,
PYRA_COMMAND_PROFILE_SETTINGS);
}
static ssize_t pyra_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 = pyra_send_control(usb_dev, *(uint *)(attr->private),
PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
if (retval)
return retval;
return pyra_sysfs_read(fp, kobj, buf, off, count,
PYRA_SIZE_PROFILE_BUTTONS,
PYRA_COMMAND_PROFILE_BUTTONS);
}
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
.attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = PYRA_SIZE_PROFILE_SETTINGS, \
.read = pyra_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 = PYRA_SIZE_PROFILE_BUTTONS, \
.read = pyra_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 pyra_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 pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0;
struct pyra_roccat_report roccat_report;
struct pyra_settings const *settings;
if (off != 0 || count != PYRA_SIZE_SETTINGS)
return -EINVAL;
settings = (struct pyra_settings const *)buf;
if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings))
return -EINVAL;
mutex_lock(&pyra->pyra_lock);
retval = pyra_set_settings(usb_dev, settings);
if (retval) {
mutex_unlock(&pyra->pyra_lock);
return retval;
}
profile_activated(pyra, settings->startup_profile);
roccat_report.type = PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2;
roccat_report.value = settings->startup_profile + 1;
roccat_report.key = 0;
roccat_report_event(pyra->chrdev_minor,
(uint8_t const *)&roccat_report);
mutex_unlock(&pyra->pyra_lock);
return PYRA_SIZE_SETTINGS;
}
PYRA_SYSFS_R(settings, SETTINGS);
static struct bin_attribute bin_attr_settings =
__BIN_ATTR(settings, (S_IWUSR | S_IRUGO),
pyra_sysfs_read_settings, pyra_sysfs_write_settings,
PYRA_SIZE_SETTINGS);
static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pyra_device *pyra =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_cpi);
}
static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL);
static ssize_t pyra_sysfs_show_actual_profile(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pyra_device *pyra =
hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
struct pyra_settings settings;
mutex_lock(&pyra->pyra_lock);
roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
&settings, PYRA_SIZE_SETTINGS);
mutex_unlock(&pyra->pyra_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", settings.startup_profile);
}
static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
static DEVICE_ATTR(startup_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pyra_device *pyra;
struct usb_device *usb_dev;
struct pyra_info info;
dev = dev->parent->parent;
pyra = hid_get_drvdata(dev_get_drvdata(dev));
usb_dev = interface_to_usbdev(to_usb_interface(dev));
mutex_lock(&pyra->pyra_lock);
roccat_common2_receive(usb_dev, PYRA_COMMAND_INFO,
&info, PYRA_SIZE_INFO);
mutex_unlock(&pyra->pyra_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
}
static DEVICE_ATTR(firmware_version, 0440, pyra_sysfs_show_firmware_version,
NULL);
static struct attribute *pyra_attrs[] = {
&dev_attr_actual_cpi.attr,
&dev_attr_actual_profile.attr,
&dev_attr_firmware_version.attr,
&dev_attr_startup_profile.attr,
NULL,
};
static struct bin_attribute *pyra_bin_attributes[] = {
&bin_attr_control,
&bin_attr_info,
&bin_attr_profile_settings,
&bin_attr_profile_buttons,
&bin_attr_settings,
&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 pyra_group = {
.attrs = pyra_attrs,
.bin_attrs = pyra_bin_attributes,
};
static const struct attribute_group *pyra_groups[] = {
&pyra_group,
NULL,
};
/* pyra_class is used for creating sysfs attributes via roccat char device */
static const struct class pyra_class = {
.name = "pyra",
.dev_groups = pyra_groups,
};
static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
struct pyra_device *pyra)
{
struct pyra_settings settings;
int retval, i;
mutex_init(&pyra->pyra_lock);
retval = pyra_get_settings(usb_dev, &settings);
if (retval)
return retval;
for (i = 0; i < 5; ++i) {
retval = pyra_get_profile_settings(usb_dev,
&pyra->profile_settings[i], i);
if (retval)
return retval;
}
profile_activated(pyra, settings.startup_profile);
return 0;
}
static int pyra_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 pyra_device *pyra;
int retval;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
pyra = kzalloc(sizeof(*pyra), GFP_KERNEL);
if (!pyra) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, pyra);
retval = pyra_init_pyra_device_struct(usb_dev, pyra);
if (retval) {
hid_err(hdev, "couldn't init struct pyra_device\n");
goto exit_free;
}
retval = roccat_connect(&pyra_class, hdev,
sizeof(struct pyra_roccat_report));
if (retval < 0) {
hid_err(hdev, "couldn't init char dev\n");
} else {
pyra->chrdev_minor = retval;
pyra->roccat_claimed = 1;
}
} else {
hid_set_drvdata(hdev, NULL);
}
return 0;
exit_free:
kfree(pyra);
return retval;
}
static void pyra_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct pyra_device *pyra;
if (intf->cur_altsetting->desc.bInterfaceProtocol
== USB_INTERFACE_PROTOCOL_MOUSE) {
pyra = hid_get_drvdata(hdev);
if (pyra->roccat_claimed)
roccat_disconnect(pyra->chrdev_minor);
kfree(hid_get_drvdata(hdev));
}
}
static int pyra_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 = pyra_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 pyra_remove(struct hid_device *hdev)
{
pyra_remove_specials(hdev);
hid_hw_stop(hdev);
}
static void pyra_keep_values_up_to_date(struct pyra_device *pyra,
u8 const *data)
{
struct pyra_mouse_event_button const *button_event;
switch (data[0]) {
case PYRA_MOUSE_REPORT_NUMBER_BUTTON:
button_event = (struct pyra_mouse_event_button const *)data;
switch (button_event->type) {
case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
profile_activated(pyra, button_event->data1 - 1);
break;
case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
pyra->actual_cpi = button_event->data1;
break;
}
break;
}
}
static void pyra_report_to_chrdev(struct pyra_device const *pyra,
u8 const *data)
{
struct pyra_roccat_report roccat_report;
struct pyra_mouse_event_button const *button_event;
if (data[0] != PYRA_MOUSE_REPORT_NUMBER_BUTTON)
return;
button_event = (struct pyra_mouse_event_button const *)data;
switch (button_event->type) {
case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2:
case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI:
roccat_report.type = button_event->type;
roccat_report.value = button_event->data1;
roccat_report.key = 0;
roccat_report_event(pyra->chrdev_minor,
(uint8_t const *)&roccat_report);
break;
case PYRA_MOUSE_EVENT_BUTTON_TYPE_MACRO:
case PYRA_MOUSE_EVENT_BUTTON_TYPE_SHORTCUT:
case PYRA_MOUSE_EVENT_BUTTON_TYPE_QUICKLAUNCH:
if (button_event->data2 == PYRA_MOUSE_EVENT_BUTTON_PRESS) {
roccat_report.type = button_event->type;
roccat_report.key = button_event->data1;
/*
* pyra reports profile numbers with range 1-5.
* Keeping this behaviour.
*/
roccat_report.value = pyra->actual_profile + 1;
roccat_report_event(pyra->chrdev_minor,
(uint8_t const *)&roccat_report);
}
break;
}
}
static int pyra_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 pyra_device *pyra = hid_get_drvdata(hdev);
if (intf->cur_altsetting->desc.bInterfaceProtocol
!= USB_INTERFACE_PROTOCOL_MOUSE)
return 0;
if (pyra == NULL)
return 0;
pyra_keep_values_up_to_date(pyra, data);
if (pyra->roccat_claimed)
pyra_report_to_chrdev(pyra, data);
return 0;
}
static const struct hid_device_id pyra_devices[] = {
{ 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) },
{ }
};
MODULE_DEVICE_TABLE(hid, pyra_devices);
static struct hid_driver pyra_driver = {
.name = "pyra",
.id_table = pyra_devices,
.probe = pyra_probe,
.remove = pyra_remove,
.raw_event = pyra_raw_event
};
static int __init pyra_init(void)
{
int retval;
/* class name has to be same as driver name */
retval = class_register(&pyra_class);
if (retval)
return retval;
retval = hid_register_driver(&pyra_driver);
if (retval)
class_unregister(&pyra_class);
return retval;
}
static void __exit pyra_exit(void)
{
hid_unregister_driver(&pyra_driver);
class_unregister(&pyra_class);
}
module_init(pyra_init);
module_exit(pyra_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Pyra driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-pyra.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for gaming keys on Razer Blackwidow gaming keyboards
* Macro Key Keycodes: M1 = 191, M2 = 192, M3 = 193, M4 = 194, M5 = 195
*
* Copyright (c) 2021 Jelle van der Waa <[email protected]>
*/
#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 "hid-ids.h"
#define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
#define RAZER_BLACKWIDOW_TRANSFER_BUF_SIZE 91
static bool macro_key_remapping = 1;
module_param(macro_key_remapping, bool, 0644);
MODULE_PARM_DESC(macro_key_remapping, " on (Y) off (N)");
static unsigned char blackwidow_init[RAZER_BLACKWIDOW_TRANSFER_BUF_SIZE] = {
0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x04,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x00
};
static int razer_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
if (!macro_key_remapping)
return 0;
if ((usage->hid & HID_UP_KEYBOARD) != HID_UP_KEYBOARD)
return 0;
switch (usage->hid & ~HID_UP_KEYBOARD) {
case 0x68:
map_key_clear(KEY_MACRO1);
return 1;
case 0x69:
map_key_clear(KEY_MACRO2);
return 1;
case 0x6a:
map_key_clear(KEY_MACRO3);
return 1;
case 0x6b:
map_key_clear(KEY_MACRO4);
return 1;
case 0x6c:
map_key_clear(KEY_MACRO5);
return 1;
}
return 0;
}
static int razer_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
char *buf;
int ret = 0;
ret = hid_parse(hdev);
if (ret)
return ret;
/*
* Only send the enable macro keys command for the third device
* identified as mouse input.
*/
if (hdev->type == HID_TYPE_USBMOUSE) {
buf = kmemdup(blackwidow_init, RAZER_BLACKWIDOW_TRANSFER_BUF_SIZE, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, 0, buf, RAZER_BLACKWIDOW_TRANSFER_BUF_SIZE,
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret != RAZER_BLACKWIDOW_TRANSFER_BUF_SIZE)
hid_err(hdev, "failed to enable macro keys: %d\n", ret);
kfree(buf);
}
return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
}
static const struct hid_device_id razer_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
USB_DEVICE_ID_RAZER_BLACKWIDOW) },
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
USB_DEVICE_ID_RAZER_BLACKWIDOW_CLASSIC) },
{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER,
USB_DEVICE_ID_RAZER_BLACKWIDOW_ULTIMATE) },
{ }
};
MODULE_DEVICE_TABLE(hid, razer_devices);
static struct hid_driver razer_driver = {
.name = "razer",
.id_table = razer_devices,
.input_mapping = razer_input_mapping,
.probe = razer_probe,
};
module_hid_driver(razer_driver);
MODULE_AUTHOR("Jelle van der Waa <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-razer.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB Wacom tablet support - Wacom specific code
*/
#include "wacom_wac.h"
#include "wacom.h"
#include <linux/input/mt.h>
#include <linux/jiffies.h>
/* resolution for penabled devices */
#define WACOM_PL_RES 20
#define WACOM_PENPRTN_RES 40
#define WACOM_VOLITO_RES 50
#define WACOM_GRAPHIRE_RES 80
#define WACOM_INTUOS_RES 100
#define WACOM_INTUOS3_RES 200
/* Newer Cintiq and DTU have an offset between tablet and screen areas */
#define WACOM_DTU_OFFSET 200
#define WACOM_CINTIQ_OFFSET 400
/*
* Scale factor relating reported contact size to logical contact area.
* 2^14/pi is a good approximation on Intuos5 and 3rd-gen Bamboo
*/
#define WACOM_CONTACT_AREA_SCALE 2607
static bool touch_arbitration = 1;
module_param(touch_arbitration, bool, 0644);
MODULE_PARM_DESC(touch_arbitration, " on (Y) off (N)");
static void wacom_report_numbered_buttons(struct input_dev *input_dev,
int button_count, int mask);
static int wacom_numbered_button_to_key(int n);
static void wacom_update_led(struct wacom *wacom, int button_count, int mask,
int group);
static void wacom_force_proxout(struct wacom_wac *wacom_wac)
{
struct input_dev *input = wacom_wac->pen_input;
wacom_wac->shared->stylus_in_proximity = 0;
input_report_key(input, BTN_TOUCH, 0);
input_report_key(input, BTN_STYLUS, 0);
input_report_key(input, BTN_STYLUS2, 0);
input_report_key(input, BTN_STYLUS3, 0);
input_report_key(input, wacom_wac->tool[0], 0);
if (wacom_wac->serial[0]) {
input_report_abs(input, ABS_MISC, 0);
}
input_report_abs(input, ABS_PRESSURE, 0);
wacom_wac->tool[0] = 0;
wacom_wac->id[0] = 0;
wacom_wac->serial[0] = 0;
input_sync(input);
}
void wacom_idleprox_timeout(struct timer_list *list)
{
struct wacom *wacom = from_timer(wacom, list, idleprox_timer);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
if (!wacom_wac->hid_data.sense_state) {
return;
}
hid_warn(wacom->hdev, "%s: tool appears to be hung in-prox. forcing it out.\n", __func__);
wacom_force_proxout(wacom_wac);
}
/*
* Percent of battery capacity for Graphire.
* 8th value means AC online and show 100% capacity.
*/
static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
/*
* Percent of battery capacity for Intuos4 WL, AC has a separate bit.
*/
static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
static void __wacom_notify_battery(struct wacom_battery *battery,
int bat_status, int bat_capacity,
bool bat_charging, bool bat_connected,
bool ps_connected)
{
bool changed = battery->bat_status != bat_status ||
battery->battery_capacity != bat_capacity ||
battery->bat_charging != bat_charging ||
battery->bat_connected != bat_connected ||
battery->ps_connected != ps_connected;
if (changed) {
battery->bat_status = bat_status;
battery->battery_capacity = bat_capacity;
battery->bat_charging = bat_charging;
battery->bat_connected = bat_connected;
battery->ps_connected = ps_connected;
if (battery->battery)
power_supply_changed(battery->battery);
}
}
static void wacom_notify_battery(struct wacom_wac *wacom_wac,
int bat_status, int bat_capacity, bool bat_charging,
bool bat_connected, bool ps_connected)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
bool bat_initialized = wacom->battery.battery;
bool has_quirk = wacom_wac->features.quirks & WACOM_QUIRK_BATTERY;
if (bat_initialized != has_quirk)
wacom_schedule_work(wacom_wac, WACOM_WORKER_BATTERY);
__wacom_notify_battery(&wacom->battery, bat_status, bat_capacity,
bat_charging, bat_connected, ps_connected);
}
static int wacom_penpartner_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
switch (data[0]) {
case 1:
if (data[5] & 0x80) {
wacom->tool[0] = (data[5] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID;
input_report_key(input, wacom->tool[0], 1);
input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -127));
input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
} else {
input_report_key(input, wacom->tool[0], 0);
input_report_abs(input, ABS_MISC, 0); /* report tool id */
input_report_abs(input, ABS_PRESSURE, -1);
input_report_key(input, BTN_TOUCH, 0);
}
break;
case 2:
input_report_key(input, BTN_TOOL_PEN, 1);
input_report_abs(input, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */
input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
break;
default:
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
return 0;
}
return 1;
}
static int wacom_pl_irq(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int prox, pressure;
if (data[0] != WACOM_REPORT_PENABLED) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
return 0;
}
prox = data[1] & 0x40;
if (!wacom->id[0]) {
if ((data[0] & 0x10) || (data[4] & 0x20)) {
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
}
else {
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
}
}
/* If the eraser is in prox, STYLUS2 is always set. If we
* mis-detected the type and notice that STYLUS2 isn't set
* then force the eraser out of prox and let the pen in.
*/
if (wacom->tool[0] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) {
input_report_key(input, BTN_TOOL_RUBBER, 0);
input_report_abs(input, ABS_MISC, 0);
input_sync(input);
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
}
if (prox) {
pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
if (features->pressure_max > 255)
pressure = (pressure << 1) | ((data[4] >> 6) & 1);
pressure += (features->pressure_max + 1) / 2;
input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
input_report_abs(input, ABS_PRESSURE, pressure);
input_report_key(input, BTN_TOUCH, data[4] & 0x08);
input_report_key(input, BTN_STYLUS, data[4] & 0x10);
/* Only allow the stylus2 button to be reported for the pen tool. */
input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
}
if (!prox)
wacom->id[0] = 0;
input_report_key(input, wacom->tool[0], prox);
input_report_abs(input, ABS_MISC, wacom->id[0]);
return 1;
}
static int wacom_ptu_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
if (data[0] != WACOM_REPORT_PENABLED) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
return 0;
}
if (data[1] & 0x04) {
input_report_key(input, BTN_TOOL_RUBBER, data[1] & 0x20);
input_report_key(input, BTN_TOUCH, data[1] & 0x08);
wacom->id[0] = ERASER_DEVICE_ID;
} else {
input_report_key(input, BTN_TOOL_PEN, data[1] & 0x20);
input_report_key(input, BTN_TOUCH, data[1] & 0x01);
wacom->id[0] = STYLUS_DEVICE_ID;
}
input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6]));
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
return 1;
}
static int wacom_dtu_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int prox = data[1] & 0x20;
dev_dbg(input->dev.parent,
"%s: received report #%d", __func__, data[0]);
if (prox) {
/* Going into proximity select tool */
wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
if (wacom->tool[0] == BTN_TOOL_PEN)
wacom->id[0] = STYLUS_DEVICE_ID;
else
wacom->id[0] = ERASER_DEVICE_ID;
}
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x01) << 8) | data[6]);
input_report_key(input, BTN_TOUCH, data[1] & 0x05);
if (!prox) /* out-prox */
wacom->id[0] = 0;
input_report_key(input, wacom->tool[0], prox);
input_report_abs(input, ABS_MISC, wacom->id[0]);
return 1;
}
static int wacom_dtus_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
unsigned short prox, pressure = 0;
if (data[0] != WACOM_REPORT_DTUS && data[0] != WACOM_REPORT_DTUSPAD) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d", __func__, data[0]);
return 0;
} else if (data[0] == WACOM_REPORT_DTUSPAD) {
input = wacom->pad_input;
input_report_key(input, BTN_0, (data[1] & 0x01));
input_report_key(input, BTN_1, (data[1] & 0x02));
input_report_key(input, BTN_2, (data[1] & 0x04));
input_report_key(input, BTN_3, (data[1] & 0x08));
input_report_abs(input, ABS_MISC,
data[1] & 0x0f ? PAD_DEVICE_ID : 0);
return 1;
} else {
prox = data[1] & 0x80;
if (prox) {
switch ((data[1] >> 3) & 3) {
case 1: /* Rubber */
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
break;
case 2: /* Pen */
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
break;
}
}
input_report_key(input, BTN_STYLUS, data[1] & 0x20);
input_report_key(input, BTN_STYLUS2, data[1] & 0x40);
input_report_abs(input, ABS_X, get_unaligned_be16(&data[3]));
input_report_abs(input, ABS_Y, get_unaligned_be16(&data[5]));
pressure = ((data[1] & 0x03) << 8) | (data[2] & 0xff);
input_report_abs(input, ABS_PRESSURE, pressure);
input_report_key(input, BTN_TOUCH, pressure > 10);
if (!prox) /* out-prox */
wacom->id[0] = 0;
input_report_key(input, wacom->tool[0], prox);
input_report_abs(input, ABS_MISC, wacom->id[0]);
return 1;
}
}
static int wacom_graphire_irq(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
struct input_dev *pad_input = wacom->pad_input;
int battery_capacity, ps_connected;
int prox;
int rw = 0;
int retval = 0;
if (features->type == GRAPHIRE_BT) {
if (data[0] != WACOM_REPORT_PENABLED_BT) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__,
data[0]);
goto exit;
}
} else if (data[0] != WACOM_REPORT_PENABLED) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
goto exit;
}
prox = data[1] & 0x80;
if (prox || wacom->id[0]) {
if (prox) {
switch ((data[1] >> 5) & 3) {
case 0: /* Pen */
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
break;
case 1: /* Rubber */
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
break;
case 2: /* Mouse with wheel */
input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
fallthrough;
case 3: /* Mouse without wheel */
wacom->tool[0] = BTN_TOOL_MOUSE;
wacom->id[0] = CURSOR_DEVICE_ID;
break;
}
}
input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
if (wacom->tool[0] != BTN_TOOL_MOUSE) {
if (features->type == GRAPHIRE_BT)
input_report_abs(input, ABS_PRESSURE, data[6] |
(((__u16) (data[1] & 0x08)) << 5));
else
input_report_abs(input, ABS_PRESSURE, data[6] |
((data[7] & 0x03) << 8));
input_report_key(input, BTN_TOUCH, data[1] & 0x01);
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
} else {
input_report_key(input, BTN_LEFT, data[1] & 0x01);
input_report_key(input, BTN_RIGHT, data[1] & 0x02);
if (features->type == WACOM_G4 ||
features->type == WACOM_MO) {
input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f);
rw = (data[7] & 0x04) - (data[7] & 0x03);
} else if (features->type == GRAPHIRE_BT) {
/* Compute distance between mouse and tablet */
rw = 44 - (data[6] >> 2);
rw = clamp_val(rw, 0, 31);
input_report_abs(input, ABS_DISTANCE, rw);
if (((data[1] >> 5) & 3) == 2) {
/* Mouse with wheel */
input_report_key(input, BTN_MIDDLE,
data[1] & 0x04);
rw = (data[6] & 0x01) ? -1 :
(data[6] & 0x02) ? 1 : 0;
} else {
rw = 0;
}
} else {
input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f);
rw = -(signed char)data[6];
}
input_report_rel(input, REL_WHEEL, rw);
}
if (!prox)
wacom->id[0] = 0;
input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
input_report_key(input, wacom->tool[0], prox);
input_sync(input); /* sync last event */
}
/* send pad data */
switch (features->type) {
case WACOM_G4:
prox = data[7] & 0xf8;
if (prox || wacom->id[1]) {
wacom->id[1] = PAD_DEVICE_ID;
input_report_key(pad_input, BTN_BACK, (data[7] & 0x40));
input_report_key(pad_input, BTN_FORWARD, (data[7] & 0x80));
rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3);
input_report_rel(pad_input, REL_WHEEL, rw);
if (!prox)
wacom->id[1] = 0;
input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
retval = 1;
}
break;
case WACOM_MO:
prox = (data[7] & 0xf8) || data[8];
if (prox || wacom->id[1]) {
wacom->id[1] = PAD_DEVICE_ID;
input_report_key(pad_input, BTN_BACK, (data[7] & 0x08));
input_report_key(pad_input, BTN_LEFT, (data[7] & 0x20));
input_report_key(pad_input, BTN_FORWARD, (data[7] & 0x10));
input_report_key(pad_input, BTN_RIGHT, (data[7] & 0x40));
input_report_abs(pad_input, ABS_WHEEL, (data[8] & 0x7f));
if (!prox)
wacom->id[1] = 0;
input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
retval = 1;
}
break;
case GRAPHIRE_BT:
prox = data[7] & 0x03;
if (prox || wacom->id[1]) {
wacom->id[1] = PAD_DEVICE_ID;
input_report_key(pad_input, BTN_0, (data[7] & 0x02));
input_report_key(pad_input, BTN_1, (data[7] & 0x01));
if (!prox)
wacom->id[1] = 0;
input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
retval = 1;
}
break;
}
/* Store current battery capacity and power supply state */
if (features->type == GRAPHIRE_BT) {
rw = (data[7] >> 2 & 0x07);
battery_capacity = batcap_gr[rw];
ps_connected = rw == 7;
wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery_capacity, ps_connected, 1,
ps_connected);
}
exit:
return retval;
}
static void wacom_intuos_schedule_prox_event(struct wacom_wac *wacom_wac)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
struct wacom_features *features = &wacom_wac->features;
struct hid_report *r;
struct hid_report_enum *re;
re = &(wacom->hdev->report_enum[HID_FEATURE_REPORT]);
if (features->type == INTUOSHT2)
r = re->report_id_hash[WACOM_REPORT_INTUOSHT2_ID];
else
r = re->report_id_hash[WACOM_REPORT_INTUOS_ID1];
if (r) {
hid_hw_request(wacom->hdev, r, HID_REQ_GET_REPORT);
}
}
static int wacom_intuos_pad(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pad_input;
int i;
int buttons = 0, nbuttons = features->numbered_buttons;
int keys = 0, nkeys = 0;
int ring1 = 0, ring2 = 0;
int strip1 = 0, strip2 = 0;
bool prox = false;
bool wrench = false, keyboard = false, mute_touch = false, menu = false,
info = false;
/* pad packets. Works as a second tool and is always in prox */
if (!(data[0] == WACOM_REPORT_INTUOSPAD || data[0] == WACOM_REPORT_INTUOS5PAD ||
data[0] == WACOM_REPORT_CINTIQPAD))
return 0;
if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
buttons = (data[3] << 1) | (data[2] & 0x01);
ring1 = data[1];
} else if (features->type == DTK) {
buttons = data[6];
} else if (features->type == WACOM_13HD) {
buttons = (data[4] << 1) | (data[3] & 0x01);
} else if (features->type == WACOM_24HD) {
buttons = (data[8] << 8) | data[6];
ring1 = data[1];
ring2 = data[2];
/*
* Three "buttons" are available on the 24HD which are
* physically implemented as a touchstrip. Each button
* is approximately 3 bits wide with a 2 bit spacing.
* The raw touchstrip bits are stored at:
* ((data[3] & 0x1f) << 8) | data[4])
*/
nkeys = 3;
keys = ((data[3] & 0x1C) ? 1<<2 : 0) |
((data[4] & 0xE0) ? 1<<1 : 0) |
((data[4] & 0x07) ? 1<<0 : 0);
keyboard = !!(data[4] & 0xE0);
info = !!(data[3] & 0x1C);
if (features->oPid) {
mute_touch = !!(data[4] & 0x07);
if (mute_touch)
wacom->shared->is_touch_on =
!wacom->shared->is_touch_on;
} else {
wrench = !!(data[4] & 0x07);
}
} else if (features->type == WACOM_27QHD) {
nkeys = 3;
keys = data[2] & 0x07;
wrench = !!(data[2] & 0x01);
keyboard = !!(data[2] & 0x02);
if (features->oPid) {
mute_touch = !!(data[2] & 0x04);
if (mute_touch)
wacom->shared->is_touch_on =
!wacom->shared->is_touch_on;
} else {
menu = !!(data[2] & 0x04);
}
input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[4]));
input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[6]));
input_report_abs(input, ABS_Z, be16_to_cpup((__be16 *)&data[8]));
} else if (features->type == CINTIQ_HYBRID) {
/*
* Do not send hardware buttons under Android. They
* are already sent to the system through GPIO (and
* have different meaning).
*
* d-pad right -> data[4] & 0x10
* d-pad up -> data[4] & 0x20
* d-pad left -> data[4] & 0x40
* d-pad down -> data[4] & 0x80
* d-pad center -> data[3] & 0x01
*/
buttons = (data[4] << 1) | (data[3] & 0x01);
} else if (features->type == CINTIQ_COMPANION_2) {
/* d-pad right -> data[2] & 0x10
* d-pad up -> data[2] & 0x20
* d-pad left -> data[2] & 0x40
* d-pad down -> data[2] & 0x80
* d-pad center -> data[1] & 0x01
*/
buttons = ((data[2] >> 4) << 7) |
((data[1] & 0x04) << 4) |
((data[2] & 0x0F) << 2) |
(data[1] & 0x03);
} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
/*
* ExpressKeys on Intuos5/Intuos Pro have a capacitive sensor in
* addition to the mechanical switch. Switch data is
* stored in data[4], capacitive data in data[5].
*
* Touch ring mode switch (data[3]) has no capacitive sensor
*/
buttons = (data[4] << 1) | (data[3] & 0x01);
ring1 = data[2];
} else {
if (features->type == WACOM_21UX2 || features->type == WACOM_22HD) {
buttons = (data[8] << 10) | ((data[7] & 0x01) << 9) |
(data[6] << 1) | (data[5] & 0x01);
if (features->type == WACOM_22HD) {
nkeys = 3;
keys = data[9] & 0x07;
info = !!(data[9] & 0x01);
wrench = !!(data[9] & 0x02);
}
} else {
buttons = ((data[6] & 0x10) << 5) |
((data[5] & 0x10) << 4) |
((data[6] & 0x0F) << 4) |
(data[5] & 0x0F);
}
strip1 = ((data[1] & 0x1f) << 8) | data[2];
strip2 = ((data[3] & 0x1f) << 8) | data[4];
}
prox = (buttons & ~(~0U << nbuttons)) | (keys & ~(~0U << nkeys)) |
(ring1 & 0x80) | (ring2 & 0x80) | strip1 | strip2;
wacom_report_numbered_buttons(input, nbuttons, buttons);
for (i = 0; i < nkeys; i++)
input_report_key(input, KEY_PROG1 + i, keys & (1 << i));
input_report_key(input, KEY_BUTTONCONFIG, wrench);
input_report_key(input, KEY_ONSCREEN_KEYBOARD, keyboard);
input_report_key(input, KEY_CONTROLPANEL, menu);
input_report_key(input, KEY_INFO, info);
if (wacom->shared && wacom->shared->touch_input) {
input_report_switch(wacom->shared->touch_input,
SW_MUTE_DEVICE,
!wacom->shared->is_touch_on);
input_sync(wacom->shared->touch_input);
}
input_report_abs(input, ABS_RX, strip1);
input_report_abs(input, ABS_RY, strip2);
input_report_abs(input, ABS_WHEEL, (ring1 & 0x80) ? (ring1 & 0x7f) : 0);
input_report_abs(input, ABS_THROTTLE, (ring2 & 0x80) ? (ring2 & 0x7f) : 0);
input_report_key(input, wacom->tool[1], prox ? 1 : 0);
input_report_abs(input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
return 1;
}
static int wacom_intuos_id_mangle(int tool_id)
{
return (tool_id & ~0xFFF) << 4 | (tool_id & 0xFFF);
}
static bool wacom_is_art_pen(int tool_id)
{
bool is_art_pen = false;
switch (tool_id) {
case 0x885: /* Intuos3 Marker Pen */
case 0x804: /* Intuos4/5 13HD/24HD Marker Pen */
case 0x10804: /* Intuos4/5 13HD/24HD Art Pen */
is_art_pen = true;
break;
}
return is_art_pen;
}
static int wacom_intuos_get_tool_type(int tool_id)
{
int tool_type = BTN_TOOL_PEN;
if (wacom_is_art_pen(tool_id))
return tool_type;
switch (tool_id) {
case 0x812: /* Inking pen */
case 0x801: /* Intuos3 Inking pen */
case 0x12802: /* Intuos4/5 Inking Pen */
case 0x012:
tool_type = BTN_TOOL_PENCIL;
break;
case 0x822: /* Pen */
case 0x842:
case 0x852:
case 0x823: /* Intuos3 Grip Pen */
case 0x813: /* Intuos3 Classic Pen */
case 0x802: /* Intuos4/5 13HD/24HD General Pen */
case 0x8e2: /* IntuosHT2 pen */
case 0x022:
case 0x200: /* Pro Pen 3 */
case 0x04200: /* Pro Pen 3 */
case 0x10842: /* MobileStudio Pro Pro Pen slim */
case 0x14802: /* Intuos4/5 13HD/24HD Classic Pen */
case 0x16802: /* Cintiq 13HD Pro Pen */
case 0x18802: /* DTH2242 Pen */
case 0x10802: /* Intuos4/5 13HD/24HD General Pen */
case 0x80842: /* Intuos Pro and Cintiq Pro 3D Pen */
tool_type = BTN_TOOL_PEN;
break;
case 0x832: /* Stroke pen */
case 0x032:
tool_type = BTN_TOOL_BRUSH;
break;
case 0x007: /* Mouse 4D and 2D */
case 0x09c:
case 0x094:
case 0x017: /* Intuos3 2D Mouse */
case 0x806: /* Intuos4 Mouse */
tool_type = BTN_TOOL_MOUSE;
break;
case 0x096: /* Lens cursor */
case 0x097: /* Intuos3 Lens cursor */
case 0x006: /* Intuos4 Lens cursor */
tool_type = BTN_TOOL_LENS;
break;
case 0x82a: /* Eraser */
case 0x84a:
case 0x85a:
case 0x91a:
case 0xd1a:
case 0x0fa:
case 0x82b: /* Intuos3 Grip Pen Eraser */
case 0x81b: /* Intuos3 Classic Pen Eraser */
case 0x91b: /* Intuos3 Airbrush Eraser */
case 0x80c: /* Intuos4/5 13HD/24HD Marker Pen Eraser */
case 0x80a: /* Intuos4/5 13HD/24HD General Pen Eraser */
case 0x90a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
case 0x1480a: /* Intuos4/5 13HD/24HD Classic Pen Eraser */
case 0x1090a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
case 0x1080c: /* Intuos4/5 13HD/24HD Art Pen Eraser */
case 0x1084a: /* MobileStudio Pro Pro Pen slim Eraser */
case 0x1680a: /* Cintiq 13HD Pro Pen Eraser */
case 0x1880a: /* DTH2242 Eraser */
case 0x1080a: /* Intuos4/5 13HD/24HD General Pen Eraser */
tool_type = BTN_TOOL_RUBBER;
break;
case 0xd12:
case 0x912:
case 0x112:
case 0x913: /* Intuos3 Airbrush */
case 0x902: /* Intuos4/5 13HD/24HD Airbrush */
case 0x10902: /* Intuos4/5 13HD/24HD Airbrush */
tool_type = BTN_TOOL_AIRBRUSH;
break;
}
return tool_type;
}
static void wacom_exit_report(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->pen_input;
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
/*
* Reset all states otherwise we lose the initial states
* when in-prox next time
*/
input_report_abs(input, ABS_X, 0);
input_report_abs(input, ABS_Y, 0);
input_report_abs(input, ABS_DISTANCE, 0);
input_report_abs(input, ABS_TILT_X, 0);
input_report_abs(input, ABS_TILT_Y, 0);
if (wacom->tool[idx] >= BTN_TOOL_MOUSE) {
input_report_key(input, BTN_LEFT, 0);
input_report_key(input, BTN_MIDDLE, 0);
input_report_key(input, BTN_RIGHT, 0);
input_report_key(input, BTN_SIDE, 0);
input_report_key(input, BTN_EXTRA, 0);
input_report_abs(input, ABS_THROTTLE, 0);
input_report_abs(input, ABS_RZ, 0);
} else {
input_report_abs(input, ABS_PRESSURE, 0);
input_report_key(input, BTN_STYLUS, 0);
input_report_key(input, BTN_STYLUS2, 0);
input_report_key(input, BTN_TOUCH, 0);
input_report_abs(input, ABS_WHEEL, 0);
if (features->type >= INTUOS3S)
input_report_abs(input, ABS_Z, 0);
}
input_report_key(input, wacom->tool[idx], 0);
input_report_abs(input, ABS_MISC, 0); /* reset tool id */
input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
wacom->id[idx] = 0;
}
static int wacom_intuos_inout(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
if (!(((data[1] & 0xfc) == 0xc0) || /* in prox */
((data[1] & 0xfe) == 0x20) || /* in range */
((data[1] & 0xfe) == 0x80))) /* out prox */
return 0;
/* Enter report */
if ((data[1] & 0xfc) == 0xc0) {
/* serial number of the tool */
wacom->serial[idx] = ((__u64)(data[3] & 0x0f) << 28) +
(data[4] << 20) + (data[5] << 12) +
(data[6] << 4) + (data[7] >> 4);
wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
((data[7] & 0x0f) << 16) | ((data[8] & 0xf0) << 8);
wacom->tool[idx] = wacom_intuos_get_tool_type(wacom->id[idx]);
wacom->shared->stylus_in_proximity = true;
return 1;
}
/* in Range */
if ((data[1] & 0xfe) == 0x20) {
if (features->type != INTUOSHT2)
wacom->shared->stylus_in_proximity = true;
/* in Range while exiting */
if (wacom->reporting_data) {
input_report_key(input, BTN_TOUCH, 0);
input_report_abs(input, ABS_PRESSURE, 0);
input_report_abs(input, ABS_DISTANCE, wacom->features.distance_max);
return 2;
}
return 1;
}
/* Exit report */
if ((data[1] & 0xfe) == 0x80) {
wacom->shared->stylus_in_proximity = false;
wacom->reporting_data = false;
/* don't report exit if we don't know the ID */
if (!wacom->id[idx])
return 1;
wacom_exit_report(wacom);
return 2;
}
return 0;
}
static inline bool touch_is_muted(struct wacom_wac *wacom_wac)
{
return wacom_wac->probe_complete &&
wacom_wac->shared->has_mute_touch_switch &&
!wacom_wac->shared->is_touch_on;
}
static inline bool report_touch_events(struct wacom_wac *wacom)
{
return (touch_arbitration ? !wacom->shared->stylus_in_proximity : 1);
}
static inline bool delay_pen_events(struct wacom_wac *wacom)
{
return (wacom->shared->touch_down && touch_arbitration);
}
static int wacom_intuos_general(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
unsigned char type = (data[1] >> 1) & 0x0F;
unsigned int x, y, distance, t;
if (data[0] != WACOM_REPORT_PENABLED && data[0] != WACOM_REPORT_CINTIQ &&
data[0] != WACOM_REPORT_INTUOS_PEN)
return 0;
if (delay_pen_events(wacom))
return 1;
/* don't report events if we don't know the tool ID */
if (!wacom->id[idx]) {
/* but reschedule a read of the current tool */
wacom_intuos_schedule_prox_event(wacom);
return 1;
}
/*
* don't report events for invalid data
*/
/* older I4 styli don't work with new Cintiqs */
if ((!((wacom->id[idx] >> 16) & 0x01) &&
(features->type == WACOM_21UX2)) ||
/* Only large Intuos support Lense Cursor */
(wacom->tool[idx] == BTN_TOOL_LENS &&
(features->type == INTUOS3 ||
features->type == INTUOS3S ||
features->type == INTUOS4 ||
features->type == INTUOS4S ||
features->type == INTUOS5 ||
features->type == INTUOS5S ||
features->type == INTUOSPM ||
features->type == INTUOSPS)) ||
/* Cintiq doesn't send data when RDY bit isn't set */
(features->type == CINTIQ && !(data[1] & 0x40)))
return 1;
x = (be16_to_cpup((__be16 *)&data[2]) << 1) | ((data[9] >> 1) & 1);
y = (be16_to_cpup((__be16 *)&data[4]) << 1) | (data[9] & 1);
distance = data[9] >> 2;
if (features->type < INTUOS3S) {
x >>= 1;
y >>= 1;
distance >>= 1;
}
if (features->type == INTUOSHT2)
distance = features->distance_max - distance;
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
input_report_abs(input, ABS_DISTANCE, distance);
switch (type) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
/* general pen packet */
t = (data[6] << 3) | ((data[7] & 0xC0) >> 5) | (data[1] & 1);
if (features->pressure_max < 2047)
t >>= 1;
input_report_abs(input, ABS_PRESSURE, t);
if (features->type != INTUOSHT2) {
input_report_abs(input, ABS_TILT_X,
(((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
}
input_report_key(input, BTN_STYLUS, data[1] & 2);
input_report_key(input, BTN_STYLUS2, data[1] & 4);
input_report_key(input, BTN_TOUCH, t > 10);
break;
case 0x0a:
/* airbrush second packet */
input_report_abs(input, ABS_WHEEL,
(data[6] << 2) | ((data[7] >> 6) & 3));
input_report_abs(input, ABS_TILT_X,
(((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
break;
case 0x05:
/* Rotation packet */
if (features->type >= INTUOS3S) {
/* I3 marker pen rotation */
t = (data[6] << 3) | ((data[7] >> 5) & 7);
t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
((t-1) / 2 + 450)) : (450 - t / 2) ;
input_report_abs(input, ABS_Z, t);
} else {
/* 4D mouse 2nd packet */
t = (data[6] << 3) | ((data[7] >> 5) & 7);
input_report_abs(input, ABS_RZ, (data[7] & 0x20) ?
((t - 1) / 2) : -t / 2);
}
break;
case 0x04:
/* 4D mouse 1st packet */
input_report_key(input, BTN_LEFT, data[8] & 0x01);
input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
input_report_key(input, BTN_RIGHT, data[8] & 0x04);
input_report_key(input, BTN_SIDE, data[8] & 0x20);
input_report_key(input, BTN_EXTRA, data[8] & 0x10);
t = (data[6] << 2) | ((data[7] >> 6) & 3);
input_report_abs(input, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
break;
case 0x06:
/* I4 mouse */
input_report_key(input, BTN_LEFT, data[6] & 0x01);
input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
input_report_key(input, BTN_RIGHT, data[6] & 0x04);
input_report_rel(input, REL_WHEEL, ((data[7] & 0x80) >> 7)
- ((data[7] & 0x40) >> 6));
input_report_key(input, BTN_SIDE, data[6] & 0x08);
input_report_key(input, BTN_EXTRA, data[6] & 0x10);
input_report_abs(input, ABS_TILT_X,
(((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
break;
case 0x08:
if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
/* 2D mouse packet */
input_report_key(input, BTN_LEFT, data[8] & 0x04);
input_report_key(input, BTN_MIDDLE, data[8] & 0x08);
input_report_key(input, BTN_RIGHT, data[8] & 0x10);
input_report_rel(input, REL_WHEEL, (data[8] & 0x01)
- ((data[8] & 0x02) >> 1));
/* I3 2D mouse side buttons */
if (features->type >= INTUOS3S && features->type <= INTUOS3L) {
input_report_key(input, BTN_SIDE, data[8] & 0x40);
input_report_key(input, BTN_EXTRA, data[8] & 0x20);
}
}
else if (wacom->tool[idx] == BTN_TOOL_LENS) {
/* Lens cursor packets */
input_report_key(input, BTN_LEFT, data[8] & 0x01);
input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
input_report_key(input, BTN_RIGHT, data[8] & 0x04);
input_report_key(input, BTN_SIDE, data[8] & 0x10);
input_report_key(input, BTN_EXTRA, data[8] & 0x08);
}
break;
case 0x07:
case 0x09:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f:
/* unhandled */
break;
}
input_report_abs(input, ABS_MISC,
wacom_intuos_id_mangle(wacom->id[idx])); /* report tool id */
input_report_key(input, wacom->tool[idx], 1);
input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
wacom->reporting_data = true;
return 2;
}
static int wacom_intuos_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
int result;
if (data[0] != WACOM_REPORT_PENABLED &&
data[0] != WACOM_REPORT_INTUOS_ID1 &&
data[0] != WACOM_REPORT_INTUOS_ID2 &&
data[0] != WACOM_REPORT_INTUOSPAD &&
data[0] != WACOM_REPORT_INTUOS_PEN &&
data[0] != WACOM_REPORT_CINTIQ &&
data[0] != WACOM_REPORT_CINTIQPAD &&
data[0] != WACOM_REPORT_INTUOS5PAD) {
dev_dbg(input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
return 0;
}
/* process pad events */
result = wacom_intuos_pad(wacom);
if (result)
return result;
/* process in/out prox events */
result = wacom_intuos_inout(wacom);
if (result)
return result - 1;
/* process general packets */
result = wacom_intuos_general(wacom);
if (result)
return result - 1;
return 0;
}
static int wacom_remote_irq(struct wacom_wac *wacom_wac, size_t len)
{
unsigned char *data = wacom_wac->data;
struct input_dev *input;
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
struct wacom_remote *remote = wacom->remote;
int bat_charging, bat_percent, touch_ring_mode;
__u32 serial;
int i, index = -1;
unsigned long flags;
if (data[0] != WACOM_REPORT_REMOTE) {
hid_dbg(wacom->hdev, "%s: received unknown report #%d",
__func__, data[0]);
return 0;
}
serial = data[3] + (data[4] << 8) + (data[5] << 16);
wacom_wac->id[0] = PAD_DEVICE_ID;
spin_lock_irqsave(&remote->remote_lock, flags);
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
if (remote->remotes[i].serial == serial) {
index = i;
break;
}
}
if (index < 0 || !remote->remotes[index].registered)
goto out;
remote->remotes[i].active_time = ktime_get();
input = remote->remotes[index].input;
input_report_key(input, BTN_0, (data[9] & 0x01));
input_report_key(input, BTN_1, (data[9] & 0x02));
input_report_key(input, BTN_2, (data[9] & 0x04));
input_report_key(input, BTN_3, (data[9] & 0x08));
input_report_key(input, BTN_4, (data[9] & 0x10));
input_report_key(input, BTN_5, (data[9] & 0x20));
input_report_key(input, BTN_6, (data[9] & 0x40));
input_report_key(input, BTN_7, (data[9] & 0x80));
input_report_key(input, BTN_8, (data[10] & 0x01));
input_report_key(input, BTN_9, (data[10] & 0x02));
input_report_key(input, BTN_A, (data[10] & 0x04));
input_report_key(input, BTN_B, (data[10] & 0x08));
input_report_key(input, BTN_C, (data[10] & 0x10));
input_report_key(input, BTN_X, (data[10] & 0x20));
input_report_key(input, BTN_Y, (data[10] & 0x40));
input_report_key(input, BTN_Z, (data[10] & 0x80));
input_report_key(input, BTN_BASE, (data[11] & 0x01));
input_report_key(input, BTN_BASE2, (data[11] & 0x02));
if (data[12] & 0x80)
input_report_abs(input, ABS_WHEEL, (data[12] & 0x7f) - 1);
else
input_report_abs(input, ABS_WHEEL, 0);
bat_percent = data[7] & 0x7f;
bat_charging = !!(data[7] & 0x80);
if (data[9] | data[10] | (data[11] & 0x03) | data[12])
input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
else
input_report_abs(input, ABS_MISC, 0);
input_event(input, EV_MSC, MSC_SERIAL, serial);
input_sync(input);
/*Which mode select (LED light) is currently on?*/
touch_ring_mode = (data[11] & 0xC0) >> 6;
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
if (remote->remotes[i].serial == serial)
wacom->led.groups[i].select = touch_ring_mode;
}
__wacom_notify_battery(&remote->remotes[index].battery,
WACOM_POWER_SUPPLY_STATUS_AUTO, bat_percent,
bat_charging, 1, bat_charging);
out:
spin_unlock_irqrestore(&remote->remote_lock, flags);
return 0;
}
static void wacom_remote_status_irq(struct wacom_wac *wacom_wac, size_t len)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
unsigned char *data = wacom_wac->data;
struct wacom_remote *remote = wacom->remote;
struct wacom_remote_work_data remote_data;
unsigned long flags;
int i, ret;
if (data[0] != WACOM_REPORT_DEVICE_LIST)
return;
memset(&remote_data, 0, sizeof(struct wacom_remote_work_data));
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
int j = i * 6;
int serial = (data[j+6] << 16) + (data[j+5] << 8) + data[j+4];
remote_data.remote[i].serial = serial;
}
spin_lock_irqsave(&remote->remote_lock, flags);
ret = kfifo_in(&remote->remote_fifo, &remote_data, sizeof(remote_data));
if (ret != sizeof(remote_data)) {
spin_unlock_irqrestore(&remote->remote_lock, flags);
hid_err(wacom->hdev, "Can't queue Remote status event.\n");
return;
}
spin_unlock_irqrestore(&remote->remote_lock, flags);
wacom_schedule_work(wacom_wac, WACOM_WORKER_REMOTE);
}
static int int_dist(int x1, int y1, int x2, int y2)
{
int x = x2 - x1;
int y = y2 - y1;
return int_sqrt(x*x + y*y);
}
static void wacom_intuos_bt_process_data(struct wacom_wac *wacom,
unsigned char *data)
{
memcpy(wacom->data, data, 10);
wacom_intuos_irq(wacom);
input_sync(wacom->pen_input);
if (wacom->pad_input)
input_sync(wacom->pad_input);
}
static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)
{
unsigned char data[WACOM_PKGLEN_MAX];
int i = 1;
unsigned power_raw, battery_capacity, bat_charging, ps_connected;
memcpy(data, wacom->data, len);
switch (data[0]) {
case 0x04:
wacom_intuos_bt_process_data(wacom, data + i);
i += 10;
fallthrough;
case 0x03:
wacom_intuos_bt_process_data(wacom, data + i);
i += 10;
wacom_intuos_bt_process_data(wacom, data + i);
i += 10;
power_raw = data[i];
bat_charging = (power_raw & 0x08) ? 1 : 0;
ps_connected = (power_raw & 0x10) ? 1 : 0;
battery_capacity = batcap_i4[power_raw & 0x07];
wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery_capacity, bat_charging,
battery_capacity || bat_charging,
ps_connected);
break;
default:
dev_dbg(wacom->pen_input->dev.parent,
"Unknown report: %d,%d size:%zu\n",
data[0], data[1], len);
return 0;
}
return 0;
}
static int wacom_wac_finger_count_touches(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->touch_input;
unsigned touch_max = wacom->features.touch_max;
int count = 0;
int i;
if (!touch_max)
return 0;
if (touch_max == 1)
return test_bit(BTN_TOUCH, input->key) &&
report_touch_events(wacom);
for (i = 0; i < input->mt->num_slots; i++) {
struct input_mt_slot *ps = &input->mt->slots[i];
int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
if (id >= 0)
count++;
}
return count;
}
static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
{
int pen_frame_len, pen_frames;
struct input_dev *pen_input = wacom->pen_input;
unsigned char *data = wacom->data;
int number_of_valid_frames = 0;
ktime_t time_interval = 15000000;
ktime_t time_packet_received = ktime_get();
int i;
if (wacom->features.type == INTUOSP2_BT ||
wacom->features.type == INTUOSP2S_BT) {
wacom->serial[0] = get_unaligned_le64(&data[99]);
wacom->id[0] = get_unaligned_le16(&data[107]);
pen_frame_len = 14;
pen_frames = 7;
} else {
wacom->serial[0] = get_unaligned_le64(&data[33]);
wacom->id[0] = get_unaligned_le16(&data[41]);
pen_frame_len = 8;
pen_frames = 4;
}
if (wacom->serial[0] >> 52 == 1) {
/* Add back in missing bits of ID for non-USI pens */
wacom->id[0] |= (wacom->serial[0] >> 32) & 0xFFFFF;
}
/* number of valid frames */
for (i = 0; i < pen_frames; i++) {
unsigned char *frame = &data[i*pen_frame_len + 1];
bool valid = frame[0] & 0x80;
if (valid)
number_of_valid_frames++;
}
if (number_of_valid_frames) {
if (wacom->hid_data.time_delayed)
time_interval = ktime_get() - wacom->hid_data.time_delayed;
time_interval = div_u64(time_interval, number_of_valid_frames);
wacom->hid_data.time_delayed = time_packet_received;
}
for (i = 0; i < number_of_valid_frames; i++) {
unsigned char *frame = &data[i*pen_frame_len + 1];
bool valid = frame[0] & 0x80;
bool prox = frame[0] & 0x40;
bool range = frame[0] & 0x20;
bool invert = frame[0] & 0x10;
int frames_number_reversed = number_of_valid_frames - i - 1;
ktime_t event_timestamp = time_packet_received - frames_number_reversed * time_interval;
if (!valid)
continue;
if (!prox) {
wacom->shared->stylus_in_proximity = false;
wacom_exit_report(wacom);
input_sync(pen_input);
wacom->tool[0] = 0;
wacom->id[0] = 0;
wacom->serial[0] = 0;
wacom->hid_data.time_delayed = 0;
return;
}
if (range) {
if (!wacom->tool[0]) { /* first in range */
/* Going into range select tool */
if (invert)
wacom->tool[0] = BTN_TOOL_RUBBER;
else if (wacom->id[0])
wacom->tool[0] = wacom_intuos_get_tool_type(wacom->id[0]);
else
wacom->tool[0] = BTN_TOOL_PEN;
}
input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
if (wacom->features.type == INTUOSP2_BT ||
wacom->features.type == INTUOSP2S_BT) {
/* Fix rotation alignment: userspace expects zero at left */
int16_t rotation =
(int16_t)get_unaligned_le16(&frame[9]);
rotation += 1800/4;
if (rotation > 899)
rotation -= 1800;
input_report_abs(pen_input, ABS_TILT_X,
(char)frame[7]);
input_report_abs(pen_input, ABS_TILT_Y,
(char)frame[8]);
input_report_abs(pen_input, ABS_Z, rotation);
input_report_abs(pen_input, ABS_WHEEL,
get_unaligned_le16(&frame[11]));
}
}
if (wacom->tool[0]) {
input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
if (wacom->features.type == INTUOSP2_BT ||
wacom->features.type == INTUOSP2S_BT) {
input_report_abs(pen_input, ABS_DISTANCE,
range ? frame[13] : wacom->features.distance_max);
} else {
input_report_abs(pen_input, ABS_DISTANCE,
range ? frame[7] : wacom->features.distance_max);
}
input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x09);
input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
input_report_key(pen_input, BTN_STYLUS2, frame[0] & 0x04);
input_report_key(pen_input, wacom->tool[0], prox);
input_event(pen_input, EV_MSC, MSC_SERIAL, wacom->serial[0]);
input_report_abs(pen_input, ABS_MISC,
wacom_intuos_id_mangle(wacom->id[0])); /* report tool id */
}
wacom->shared->stylus_in_proximity = prox;
/* add timestamp to unpack the frames */
input_set_timestamp(pen_input, event_timestamp);
input_sync(pen_input);
}
}
static void wacom_intuos_pro2_bt_touch(struct wacom_wac *wacom)
{
const int finger_touch_len = 8;
const int finger_frames = 4;
const int finger_frame_len = 43;
struct input_dev *touch_input = wacom->touch_input;
unsigned char *data = wacom->data;
int num_contacts_left = 5;
int i, j;
for (i = 0; i < finger_frames; i++) {
unsigned char *frame = &data[i*finger_frame_len + 109];
int current_num_contacts = frame[0] & 0x7F;
int contacts_to_send;
if (!(frame[0] & 0x80))
continue;
/*
* First packet resets the counter since only the first
* packet in series will have non-zero current_num_contacts.
*/
if (current_num_contacts)
wacom->num_contacts_left = current_num_contacts;
contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
for (j = 0; j < contacts_to_send; j++) {
unsigned char *touch = &frame[j*finger_touch_len + 1];
int slot = input_mt_get_slot_by_key(touch_input, touch[0]);
int x = get_unaligned_le16(&touch[2]);
int y = get_unaligned_le16(&touch[4]);
int w = touch[6] * input_abs_get_res(touch_input, ABS_MT_POSITION_X);
int h = touch[7] * input_abs_get_res(touch_input, ABS_MT_POSITION_Y);
if (slot < 0)
continue;
input_mt_slot(touch_input, slot);
input_mt_report_slot_state(touch_input, MT_TOOL_FINGER, touch[1] & 0x01);
input_report_abs(touch_input, ABS_MT_POSITION_X, x);
input_report_abs(touch_input, ABS_MT_POSITION_Y, y);
input_report_abs(touch_input, ABS_MT_TOUCH_MAJOR, max(w, h));
input_report_abs(touch_input, ABS_MT_TOUCH_MINOR, min(w, h));
input_report_abs(touch_input, ABS_MT_ORIENTATION, w > h);
}
input_mt_sync_frame(touch_input);
wacom->num_contacts_left -= contacts_to_send;
if (wacom->num_contacts_left <= 0) {
wacom->num_contacts_left = 0;
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
input_sync(touch_input);
}
}
if (wacom->num_contacts_left == 0) {
// Be careful that we don't accidentally call input_sync with
// only a partial set of fingers of processed
input_report_switch(touch_input, SW_MUTE_DEVICE, !(data[281] >> 7));
input_sync(touch_input);
}
}
static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
{
struct input_dev *pad_input = wacom->pad_input;
unsigned char *data = wacom->data;
int nbuttons = wacom->features.numbered_buttons;
int expresskeys = data[282];
int center = (data[281] & 0x40) >> 6;
int ring = data[285] & 0x7F;
bool ringstatus = data[285] & 0x80;
bool prox = expresskeys || center || ringstatus;
/* Fix touchring data: userspace expects 0 at left and increasing clockwise */
ring = 71 - ring;
ring += 3*72/16;
if (ring > 71)
ring -= 72;
wacom_report_numbered_buttons(pad_input, nbuttons,
expresskeys | (center << (nbuttons - 1)));
input_report_abs(pad_input, ABS_WHEEL, ringstatus ? ring : 0);
input_report_key(pad_input, wacom->tool[1], prox ? 1 : 0);
input_report_abs(pad_input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
input_sync(pad_input);
}
static void wacom_intuos_pro2_bt_battery(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
bool chg = data[284] & 0x80;
int battery_status = data[284] & 0x7F;
wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery_status, chg, 1, chg);
}
static void wacom_intuos_gen3_bt_pad(struct wacom_wac *wacom)
{
struct input_dev *pad_input = wacom->pad_input;
unsigned char *data = wacom->data;
int buttons = data[44];
wacom_report_numbered_buttons(pad_input, 4, buttons);
input_report_key(pad_input, wacom->tool[1], buttons ? 1 : 0);
input_report_abs(pad_input, ABS_MISC, buttons ? PAD_DEVICE_ID : 0);
input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
input_sync(pad_input);
}
static void wacom_intuos_gen3_bt_battery(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
bool chg = data[45] & 0x80;
int battery_status = data[45] & 0x7F;
wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery_status, chg, 1, chg);
}
static int wacom_intuos_pro2_bt_irq(struct wacom_wac *wacom, size_t len)
{
unsigned char *data = wacom->data;
if (data[0] != 0x80 && data[0] != 0x81) {
dev_dbg(wacom->pen_input->dev.parent,
"%s: received unknown report #%d\n", __func__, data[0]);
return 0;
}
wacom_intuos_pro2_bt_pen(wacom);
if (wacom->features.type == INTUOSP2_BT ||
wacom->features.type == INTUOSP2S_BT) {
wacom_intuos_pro2_bt_touch(wacom);
wacom_intuos_pro2_bt_pad(wacom);
wacom_intuos_pro2_bt_battery(wacom);
} else {
wacom_intuos_gen3_bt_pad(wacom);
wacom_intuos_gen3_bt_battery(wacom);
}
return 0;
}
static int wacom_24hdt_irq(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->touch_input;
unsigned char *data = wacom->data;
int i;
int current_num_contacts = data[61];
int contacts_to_send = 0;
int num_contacts_left = 4; /* maximum contacts per packet */
int byte_per_packet = WACOM_BYTES_PER_24HDT_PACKET;
int y_offset = 2;
if (touch_is_muted(wacom) && !wacom->shared->touch_down)
return 0;
if (wacom->features.type == WACOM_27QHDT) {
current_num_contacts = data[63];
num_contacts_left = 10;
byte_per_packet = WACOM_BYTES_PER_QHDTHID_PACKET;
y_offset = 0;
}
/*
* First packet resets the counter since only the first
* packet in series will have non-zero current_num_contacts.
*/
if (current_num_contacts)
wacom->num_contacts_left = current_num_contacts;
contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
for (i = 0; i < contacts_to_send; i++) {
int offset = (byte_per_packet * i) + 1;
bool touch = (data[offset] & 0x1) && report_touch_events(wacom);
int slot = input_mt_get_slot_by_key(input, data[offset + 1]);
if (slot < 0)
continue;
input_mt_slot(input, slot);
input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
if (touch) {
int t_x = get_unaligned_le16(&data[offset + 2]);
int t_y = get_unaligned_le16(&data[offset + 4 + y_offset]);
input_report_abs(input, ABS_MT_POSITION_X, t_x);
input_report_abs(input, ABS_MT_POSITION_Y, t_y);
if (wacom->features.type != WACOM_27QHDT) {
int c_x = get_unaligned_le16(&data[offset + 4]);
int c_y = get_unaligned_le16(&data[offset + 8]);
int w = get_unaligned_le16(&data[offset + 10]);
int h = get_unaligned_le16(&data[offset + 12]);
input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h));
input_report_abs(input, ABS_MT_WIDTH_MAJOR,
min(w, h) + int_dist(t_x, t_y, c_x, c_y));
input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
input_report_abs(input, ABS_MT_ORIENTATION, w > h);
}
}
}
input_mt_sync_frame(input);
wacom->num_contacts_left -= contacts_to_send;
if (wacom->num_contacts_left <= 0) {
wacom->num_contacts_left = 0;
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
}
return 1;
}
static int wacom_mt_touch(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->touch_input;
unsigned char *data = wacom->data;
int i;
int current_num_contacts = data[2];
int contacts_to_send = 0;
int x_offset = 0;
/* MTTPC does not support Height and Width */
if (wacom->features.type == MTTPC || wacom->features.type == MTTPC_B)
x_offset = -4;
/*
* First packet resets the counter since only the first
* packet in series will have non-zero current_num_contacts.
*/
if (current_num_contacts)
wacom->num_contacts_left = current_num_contacts;
/* There are at most 5 contacts per packet */
contacts_to_send = min(5, wacom->num_contacts_left);
for (i = 0; i < contacts_to_send; i++) {
int offset = (WACOM_BYTES_PER_MT_PACKET + x_offset) * i + 3;
bool touch = (data[offset] & 0x1) && report_touch_events(wacom);
int id = get_unaligned_le16(&data[offset + 1]);
int slot = input_mt_get_slot_by_key(input, id);
if (slot < 0)
continue;
input_mt_slot(input, slot);
input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
if (touch) {
int x = get_unaligned_le16(&data[offset + x_offset + 7]);
int y = get_unaligned_le16(&data[offset + x_offset + 9]);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
}
}
input_mt_sync_frame(input);
wacom->num_contacts_left -= contacts_to_send;
if (wacom->num_contacts_left <= 0) {
wacom->num_contacts_left = 0;
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
}
return 1;
}
static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
{
struct input_dev *input = wacom->touch_input;
unsigned char *data = wacom->data;
int i;
for (i = 0; i < 2; i++) {
int p = data[1] & (1 << i);
bool touch = p && report_touch_events(wacom);
input_mt_slot(input, i);
input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
if (touch) {
int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
}
}
input_mt_sync_frame(input);
/* keep touch state for pen event */
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
return 1;
}
static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->touch_input;
bool prox = report_touch_events(wacom);
int x = 0, y = 0;
if (wacom->features.touch_max > 1 || len > WACOM_PKGLEN_TPC2FG)
return 0;
if (len == WACOM_PKGLEN_TPC1FG) {
prox = prox && (data[0] & 0x01);
x = get_unaligned_le16(&data[1]);
y = get_unaligned_le16(&data[3]);
} else if (len == WACOM_PKGLEN_TPC1FG_B) {
prox = prox && (data[2] & 0x01);
x = get_unaligned_le16(&data[3]);
y = get_unaligned_le16(&data[5]);
} else {
prox = prox && (data[1] & 0x01);
x = le16_to_cpup((__le16 *)&data[2]);
y = le16_to_cpup((__le16 *)&data[4]);
}
if (prox) {
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
}
input_report_key(input, BTN_TOUCH, prox);
/* keep touch state for pen events */
wacom->shared->touch_down = prox;
return 1;
}
static int wacom_tpc_pen(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
struct input_dev *input = wacom->pen_input;
bool prox = data[1] & 0x20;
if (!wacom->shared->stylus_in_proximity) /* first in prox */
/* Going into proximity select tool */
wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
/* keep pen state for touch events */
wacom->shared->stylus_in_proximity = prox;
/* send pen events only when touch is up or forced out
* or touch arbitration is off
*/
if (!delay_pen_events(wacom)) {
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x07) << 8) | data[6]);
input_report_key(input, BTN_TOUCH, data[1] & 0x05);
input_report_key(input, wacom->tool[0], prox);
return 1;
}
return 0;
}
static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
{
unsigned char *data = wacom->data;
if (wacom->pen_input) {
dev_dbg(wacom->pen_input->dev.parent,
"%s: received report #%d\n", __func__, data[0]);
if (len == WACOM_PKGLEN_PENABLED ||
data[0] == WACOM_REPORT_PENABLED)
return wacom_tpc_pen(wacom);
}
else if (wacom->touch_input) {
dev_dbg(wacom->touch_input->dev.parent,
"%s: received report #%d\n", __func__, data[0]);
switch (len) {
case WACOM_PKGLEN_TPC1FG:
return wacom_tpc_single_touch(wacom, len);
case WACOM_PKGLEN_TPC2FG:
return wacom_tpc_mt_touch(wacom);
default:
switch (data[0]) {
case WACOM_REPORT_TPC1FG:
case WACOM_REPORT_TPCHID:
case WACOM_REPORT_TPCST:
case WACOM_REPORT_TPC1FGE:
return wacom_tpc_single_touch(wacom, len);
case WACOM_REPORT_TPCMT:
case WACOM_REPORT_TPCMT2:
return wacom_mt_touch(wacom);
}
}
}
return 0;
}
static int wacom_offset_rotation(struct input_dev *input, struct hid_usage *usage,
int value, int num, int denom)
{
struct input_absinfo *abs = &input->absinfo[usage->code];
int range = (abs->maximum - abs->minimum + 1);
value += num*range/denom;
if (value > abs->maximum)
value -= range;
else if (value < abs->minimum)
value += range;
return value;
}
int wacom_equivalent_usage(int usage)
{
if ((usage & HID_USAGE_PAGE) == WACOM_HID_UP_WACOMDIGITIZER) {
int subpage = (usage & 0xFF00) << 8;
int subusage = (usage & 0xFF);
if (subpage == WACOM_HID_SP_PAD ||
subpage == WACOM_HID_SP_BUTTON ||
subpage == WACOM_HID_SP_DIGITIZER ||
subpage == WACOM_HID_SP_DIGITIZERINFO ||
usage == WACOM_HID_WD_SENSE ||
usage == WACOM_HID_WD_SERIALHI ||
usage == WACOM_HID_WD_TOOLTYPE ||
usage == WACOM_HID_WD_DISTANCE ||
usage == WACOM_HID_WD_TOUCHSTRIP ||
usage == WACOM_HID_WD_TOUCHSTRIP2 ||
usage == WACOM_HID_WD_TOUCHRING ||
usage == WACOM_HID_WD_TOUCHRINGSTATUS ||
usage == WACOM_HID_WD_REPORT_VALID ||
usage == WACOM_HID_WD_BARRELSWITCH3 ||
usage == WACOM_HID_WD_SEQUENCENUMBER) {
return usage;
}
if (subpage == HID_UP_UNDEFINED)
subpage = HID_UP_DIGITIZER;
return subpage | subusage;
}
if ((usage & HID_USAGE_PAGE) == WACOM_HID_UP_WACOMTOUCH) {
int subpage = (usage & 0xFF00) << 8;
int subusage = (usage & 0xFF);
if (usage == WACOM_HID_WT_REPORT_VALID)
return usage;
if (subpage == HID_UP_UNDEFINED)
subpage = WACOM_HID_SP_DIGITIZER;
return subpage | subusage;
}
return usage;
}
static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
struct hid_field *field, __u8 type, __u16 code, int fuzz)
{
struct wacom *wacom = input_get_drvdata(input);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
int fmin = field->logical_minimum;
int fmax = field->logical_maximum;
unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
int resolution_code = code;
int resolution = hidinput_calc_abs_res(field, resolution_code);
if (equivalent_usage == HID_DG_TWIST) {
resolution_code = ABS_RZ;
}
if (equivalent_usage == HID_GD_X) {
fmin += features->offset_left;
fmax -= features->offset_right;
}
if (equivalent_usage == HID_GD_Y) {
fmin += features->offset_top;
fmax -= features->offset_bottom;
}
usage->type = type;
usage->code = code;
switch (type) {
case EV_ABS:
input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
/* older tablet may miss physical usage */
if ((code == ABS_X || code == ABS_Y) && !resolution) {
resolution = WACOM_INTUOS_RES;
hid_warn(input,
"Wacom usage (%d) missing resolution \n",
code);
}
input_abs_set_res(input, code, resolution);
break;
case EV_KEY:
case EV_MSC:
case EV_SW:
input_set_capability(input, type, code);
break;
}
}
static void wacom_wac_battery_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
return;
}
static void wacom_wac_battery_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
case HID_DG_BATTERYSTRENGTH:
if (value == 0) {
wacom_wac->hid_data.bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
}
else {
value = value * 100 / (field->logical_maximum - field->logical_minimum);
wacom_wac->hid_data.battery_capacity = value;
wacom_wac->hid_data.bat_connected = 1;
wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
}
wacom_wac->features.quirks |= WACOM_QUIRK_BATTERY;
break;
case WACOM_HID_WD_BATTERY_LEVEL:
value = value * 100 / (field->logical_maximum - field->logical_minimum);
wacom_wac->hid_data.battery_capacity = value;
wacom_wac->hid_data.bat_connected = 1;
wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
wacom_wac->features.quirks |= WACOM_QUIRK_BATTERY;
break;
case WACOM_HID_WD_BATTERY_CHARGING:
wacom_wac->hid_data.bat_charging = value;
wacom_wac->hid_data.ps_connected = value;
wacom_wac->hid_data.bat_connected = 1;
wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
wacom_wac->features.quirks |= WACOM_QUIRK_BATTERY;
break;
}
}
static void wacom_wac_battery_pre_report(struct hid_device *hdev,
struct hid_report *report)
{
return;
}
static void wacom_wac_battery_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
int status = wacom_wac->hid_data.bat_status;
int capacity = wacom_wac->hid_data.battery_capacity;
bool charging = wacom_wac->hid_data.bat_charging;
bool connected = wacom_wac->hid_data.bat_connected;
bool powered = wacom_wac->hid_data.ps_connected;
wacom_notify_battery(wacom_wac, status, capacity, charging,
connected, powered);
}
static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
struct input_dev *input = wacom_wac->pad_input;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
case WACOM_HID_WD_ACCELEROMETER_X:
__set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_ACCELEROMETER_Y:
__set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_ACCELEROMETER_Z:
__set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_BUTTONCENTER:
case WACOM_HID_WD_BUTTONHOME:
case WACOM_HID_WD_BUTTONUP:
case WACOM_HID_WD_BUTTONDOWN:
case WACOM_HID_WD_BUTTONLEFT:
case WACOM_HID_WD_BUTTONRIGHT:
wacom_map_usage(input, usage, field, EV_KEY,
wacom_numbered_button_to_key(features->numbered_buttons),
0);
features->numbered_buttons++;
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_MUTE_DEVICE:
/* softkey touch switch */
wacom_wac->is_soft_touch_switch = true;
fallthrough;
case WACOM_HID_WD_TOUCHONOFF:
/*
* These two usages, which are used to mute touch events, come
* from the pad packet, but are reported on the touch
* interface. Because the touch interface may not have
* been created yet, we cannot call wacom_map_usage(). In
* order to process the usages when we receive them, we set
* the usage type and code directly.
*/
wacom_wac->has_mute_touch_switch = true;
usage->type = EV_SW;
usage->code = SW_MUTE_DEVICE;
break;
case WACOM_HID_WD_TOUCHSTRIP:
wacom_map_usage(input, usage, field, EV_ABS, ABS_RX, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_TOUCHSTRIP2:
wacom_map_usage(input, usage, field, EV_ABS, ABS_RY, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_TOUCHRING:
wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_TOUCHRINGSTATUS:
/*
* Only set up type/code association. Completely mapping
* this usage may overwrite the axis resolution and range.
*/
usage->type = EV_ABS;
usage->code = ABS_WHEEL;
set_bit(EV_ABS, input->evbit);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_BUTTONCONFIG:
wacom_map_usage(input, usage, field, EV_KEY, KEY_BUTTONCONFIG, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_ONSCREEN_KEYBOARD:
wacom_map_usage(input, usage, field, EV_KEY, KEY_ONSCREEN_KEYBOARD, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_CONTROLPANEL:
wacom_map_usage(input, usage, field, EV_KEY, KEY_CONTROLPANEL, 0);
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
case WACOM_HID_WD_MODE_CHANGE:
/* do not overwrite previous data */
if (!wacom_wac->has_mode_change) {
wacom_wac->has_mode_change = true;
wacom_wac->is_direct_mode = true;
}
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
}
switch (equivalent_usage & 0xfffffff0) {
case WACOM_HID_WD_EXPRESSKEY00:
wacom_map_usage(input, usage, field, EV_KEY,
wacom_numbered_button_to_key(features->numbered_buttons),
0);
features->numbered_buttons++;
features->device_type |= WACOM_DEVICETYPE_PAD;
break;
}
}
static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->pad_input;
struct wacom_features *features = &wacom_wac->features;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
int i;
bool do_report = false;
/*
* Avoid reporting this event and setting inrange_state if this usage
* hasn't been mapped.
*/
if (!usage->type && equivalent_usage != WACOM_HID_WD_MODE_CHANGE)
return;
if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) {
if (usage->hid != WACOM_HID_WD_TOUCHRING)
wacom_wac->hid_data.inrange_state |= value;
}
/* Process touch switch state first since it is reported through touch interface,
* which is indepentent of pad interface. In the case when there are no other pad
* events, the pad interface will not even be created.
*/
if ((equivalent_usage == WACOM_HID_WD_MUTE_DEVICE) ||
(equivalent_usage == WACOM_HID_WD_TOUCHONOFF)) {
if (wacom_wac->shared->touch_input) {
bool *is_touch_on = &wacom_wac->shared->is_touch_on;
if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value)
*is_touch_on = !(*is_touch_on);
else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF)
*is_touch_on = value;
input_report_switch(wacom_wac->shared->touch_input,
SW_MUTE_DEVICE, !(*is_touch_on));
input_sync(wacom_wac->shared->touch_input);
}
return;
}
if (!input)
return;
switch (equivalent_usage) {
case WACOM_HID_WD_TOUCHRING:
/*
* Userspace expects touchrings to increase in value with
* clockwise gestures and have their zero point at the
* tablet's left. HID events "should" be clockwise-
* increasing and zero at top, though the MobileStudio
* Pro and 2nd-gen Intuos Pro don't do this...
*/
if (hdev->vendor == 0x56a &&
(hdev->product == 0x34d || hdev->product == 0x34e || /* MobileStudio Pro */
hdev->product == 0x357 || hdev->product == 0x358 || /* Intuos Pro 2 */
hdev->product == 0x392 || /* Intuos Pro 2 */
hdev->product == 0x398 || hdev->product == 0x399 || /* MobileStudio Pro */
hdev->product == 0x3AA)) { /* MobileStudio Pro */
value = (field->logical_maximum - value);
if (hdev->product == 0x357 || hdev->product == 0x358 ||
hdev->product == 0x392)
value = wacom_offset_rotation(input, usage, value, 3, 16);
else if (hdev->product == 0x34d || hdev->product == 0x34e ||
hdev->product == 0x398 || hdev->product == 0x399 ||
hdev->product == 0x3AA)
value = wacom_offset_rotation(input, usage, value, 1, 2);
}
else {
value = wacom_offset_rotation(input, usage, value, 1, 4);
}
do_report = true;
break;
case WACOM_HID_WD_TOUCHRINGSTATUS:
if (!value)
input_event(input, usage->type, usage->code, 0);
break;
case WACOM_HID_WD_MODE_CHANGE:
if (wacom_wac->is_direct_mode != value) {
wacom_wac->is_direct_mode = value;
wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_MODE_CHANGE);
}
break;
case WACOM_HID_WD_BUTTONCENTER:
for (i = 0; i < wacom->led.count; i++)
wacom_update_led(wacom, features->numbered_buttons,
value, i);
fallthrough;
default:
do_report = true;
break;
}
if (do_report) {
input_event(input, usage->type, usage->code, value);
if (value)
wacom_wac->hid_data.pad_input_event_flag = true;
}
}
static void wacom_wac_pad_pre_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
wacom_wac->hid_data.inrange_state = 0;
}
static void wacom_wac_pad_report(struct hid_device *hdev,
struct hid_report *report, struct hid_field *field)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->pad_input;
bool active = wacom_wac->hid_data.inrange_state != 0;
/* report prox for expresskey events */
if (wacom_wac->hid_data.pad_input_event_flag) {
input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
input_sync(input);
if (!active)
wacom_wac->hid_data.pad_input_event_flag = false;
}
}
static void wacom_set_barrel_switch3_usage(struct wacom_wac *wacom_wac)
{
struct input_dev *input = wacom_wac->pen_input;
struct wacom_features *features = &wacom_wac->features;
if (!(features->quirks & WACOM_QUIRK_AESPEN) &&
wacom_wac->hid_data.barrelswitch &&
wacom_wac->hid_data.barrelswitch2 &&
wacom_wac->hid_data.serialhi &&
!wacom_wac->hid_data.barrelswitch3) {
input_set_capability(input, EV_KEY, BTN_STYLUS3);
features->quirks |= WACOM_QUIRK_PEN_BUTTON3;
}
}
static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
struct input_dev *input = wacom_wac->pen_input;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
case HID_GD_X:
wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 4);
break;
case HID_GD_Y:
wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 4);
break;
case WACOM_HID_WD_DISTANCE:
case HID_GD_Z:
wacom_map_usage(input, usage, field, EV_ABS, ABS_DISTANCE, 0);
break;
case HID_DG_TIPPRESSURE:
wacom_map_usage(input, usage, field, EV_ABS, ABS_PRESSURE, 0);
break;
case HID_DG_INRANGE:
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
break;
case HID_DG_INVERT:
wacom_map_usage(input, usage, field, EV_KEY,
BTN_TOOL_RUBBER, 0);
break;
case HID_DG_TILT_X:
wacom_map_usage(input, usage, field, EV_ABS, ABS_TILT_X, 0);
break;
case HID_DG_TILT_Y:
wacom_map_usage(input, usage, field, EV_ABS, ABS_TILT_Y, 0);
break;
case HID_DG_TWIST:
wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0);
break;
case HID_DG_ERASER:
input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
break;
case HID_DG_TIPSWITCH:
input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
break;
case HID_DG_BARRELSWITCH:
wacom_wac->hid_data.barrelswitch = true;
wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS, 0);
break;
case HID_DG_BARRELSWITCH2:
wacom_wac->hid_data.barrelswitch2 = true;
wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS2, 0);
break;
case HID_DG_TOOLSERIALNUMBER:
features->quirks |= WACOM_QUIRK_TOOLSERIAL;
wacom_map_usage(input, usage, field, EV_MSC, MSC_SERIAL, 0);
break;
case HID_DG_SCANTIME:
wacom_map_usage(input, usage, field, EV_MSC, MSC_TIMESTAMP, 0);
break;
case WACOM_HID_WD_SENSE:
features->quirks |= WACOM_QUIRK_SENSE;
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
break;
case WACOM_HID_WD_SERIALHI:
wacom_wac->hid_data.serialhi = true;
wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_ABS, ABS_MISC, 0);
break;
case WACOM_HID_WD_FINGERWHEEL:
input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
break;
case WACOM_HID_WD_BARRELSWITCH3:
wacom_wac->hid_data.barrelswitch3 = true;
wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS3, 0);
features->quirks &= ~WACOM_QUIRK_PEN_BUTTON3;
break;
}
}
static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
struct input_dev *input = wacom_wac->pen_input;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
if (wacom_wac->is_invalid_bt_frame)
return;
switch (equivalent_usage) {
case HID_GD_Z:
/*
* HID_GD_Z "should increase as the control's position is
* moved from high to low", while ABS_DISTANCE instead
* increases in value as the tool moves from low to high.
*/
value = field->logical_maximum - value;
break;
case HID_DG_INRANGE:
mod_timer(&wacom->idleprox_timer, jiffies + msecs_to_jiffies(100));
wacom_wac->hid_data.inrange_state = value;
if (!(features->quirks & WACOM_QUIRK_SENSE))
wacom_wac->hid_data.sense_state = value;
return;
case HID_DG_INVERT:
wacom_wac->hid_data.invert_state = value;
return;
case HID_DG_ERASER:
case HID_DG_TIPSWITCH:
wacom_wac->hid_data.tipswitch |= value;
return;
case HID_DG_BARRELSWITCH:
wacom_wac->hid_data.barrelswitch = value;
return;
case HID_DG_BARRELSWITCH2:
wacom_wac->hid_data.barrelswitch2 = value;
return;
case HID_DG_TOOLSERIALNUMBER:
if (value) {
wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
wacom_wac->serial[0] |= wacom_s32tou(value, field->report_size);
}
return;
case HID_DG_TWIST:
/* don't modify the value if the pen doesn't support the feature */
if (!wacom_is_art_pen(wacom_wac->id[0])) return;
/*
* Userspace expects pen twist to have its zero point when
* the buttons/finger is on the tablet's left. HID values
* are zero when buttons are toward the top.
*/
value = wacom_offset_rotation(input, usage, value, 1, 4);
break;
case WACOM_HID_WD_SENSE:
wacom_wac->hid_data.sense_state = value;
return;
case WACOM_HID_WD_SERIALHI:
if (value) {
__u32 raw_value = wacom_s32tou(value, field->report_size);
wacom_wac->serial[0] = (wacom_wac->serial[0] & 0xFFFFFFFF);
wacom_wac->serial[0] |= ((__u64)raw_value) << 32;
/*
* Non-USI EMR devices may contain additional tool type
* information here. See WACOM_HID_WD_TOOLTYPE case for
* more details.
*/
if (value >> 20 == 1) {
wacom_wac->id[0] |= raw_value & 0xFFFFF;
}
}
return;
case WACOM_HID_WD_TOOLTYPE:
/*
* Some devices (MobileStudio Pro, and possibly later
* devices as well) do not return the complete tool
* type in their WACOM_HID_WD_TOOLTYPE usage. Use a
* bitwise OR so the complete value can be built
* up over time :(
*/
wacom_wac->id[0] |= wacom_s32tou(value, field->report_size);
return;
case WACOM_HID_WD_OFFSETLEFT:
if (features->offset_left && value != features->offset_left)
hid_warn(hdev, "%s: overriding existing left offset "
"%d -> %d\n", __func__, value,
features->offset_left);
features->offset_left = value;
return;
case WACOM_HID_WD_OFFSETRIGHT:
if (features->offset_right && value != features->offset_right)
hid_warn(hdev, "%s: overriding existing right offset "
"%d -> %d\n", __func__, value,
features->offset_right);
features->offset_right = value;
return;
case WACOM_HID_WD_OFFSETTOP:
if (features->offset_top && value != features->offset_top)
hid_warn(hdev, "%s: overriding existing top offset "
"%d -> %d\n", __func__, value,
features->offset_top);
features->offset_top = value;
return;
case WACOM_HID_WD_OFFSETBOTTOM:
if (features->offset_bottom && value != features->offset_bottom)
hid_warn(hdev, "%s: overriding existing bottom offset "
"%d -> %d\n", __func__, value,
features->offset_bottom);
features->offset_bottom = value;
return;
case WACOM_HID_WD_REPORT_VALID:
wacom_wac->is_invalid_bt_frame = !value;
return;
case WACOM_HID_WD_BARRELSWITCH3:
wacom_wac->hid_data.barrelswitch3 = value;
return;
case WACOM_HID_WD_SEQUENCENUMBER:
if (wacom_wac->hid_data.sequence_number != value)
hid_warn(hdev, "Dropped %hu packets", (unsigned short)(value - wacom_wac->hid_data.sequence_number));
wacom_wac->hid_data.sequence_number = value + 1;
return;
}
/* send pen events only when touch is up or forced out
* or touch arbitration is off
*/
if (!usage->type || delay_pen_events(wacom_wac))
return;
/* send pen events only when the pen is in range */
if (wacom_wac->hid_data.inrange_state)
input_event(input, usage->type, usage->code, value);
else if (wacom_wac->shared->stylus_in_proximity && !wacom_wac->hid_data.sense_state)
input_event(input, usage->type, usage->code, 0);
}
static void wacom_wac_pen_pre_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
wacom_wac->is_invalid_bt_frame = false;
return;
}
static void wacom_wac_pen_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->pen_input;
bool range = wacom_wac->hid_data.inrange_state;
bool sense = wacom_wac->hid_data.sense_state;
if (wacom_wac->is_invalid_bt_frame)
return;
if (!wacom_wac->tool[0] && range) { /* first in range */
/* Going into range select tool */
if (wacom_wac->hid_data.invert_state)
wacom_wac->tool[0] = BTN_TOOL_RUBBER;
else if (wacom_wac->id[0])
wacom_wac->tool[0] = wacom_intuos_get_tool_type(wacom_wac->id[0]);
else
wacom_wac->tool[0] = BTN_TOOL_PEN;
}
/* keep pen state for touch events */
wacom_wac->shared->stylus_in_proximity = sense;
if (!delay_pen_events(wacom_wac) && wacom_wac->tool[0]) {
int id = wacom_wac->id[0];
if (wacom_wac->features.quirks & WACOM_QUIRK_PEN_BUTTON3) {
int sw_state = wacom_wac->hid_data.barrelswitch |
(wacom_wac->hid_data.barrelswitch2 << 1);
wacom_wac->hid_data.barrelswitch = sw_state == 1;
wacom_wac->hid_data.barrelswitch2 = sw_state == 2;
wacom_wac->hid_data.barrelswitch3 = sw_state == 3;
}
input_report_key(input, BTN_STYLUS, wacom_wac->hid_data.barrelswitch);
input_report_key(input, BTN_STYLUS2, wacom_wac->hid_data.barrelswitch2);
input_report_key(input, BTN_STYLUS3, wacom_wac->hid_data.barrelswitch3);
/*
* Non-USI EMR tools should have their IDs mangled to
* match the legacy behavior of wacom_intuos_general
*/
if (wacom_wac->serial[0] >> 52 == 1)
id = wacom_intuos_id_mangle(id);
/*
* To ensure compatibility with xf86-input-wacom, we should
* report the BTN_TOOL_* event prior to the ABS_MISC or
* MSC_SERIAL events.
*/
input_report_key(input, BTN_TOUCH,
wacom_wac->hid_data.tipswitch);
input_report_key(input, wacom_wac->tool[0], sense);
if (wacom_wac->serial[0]) {
input_event(input, EV_MSC, MSC_SERIAL, wacom_wac->serial[0]);
input_report_abs(input, ABS_MISC, sense ? id : 0);
}
wacom_wac->hid_data.tipswitch = false;
input_sync(input);
}
if (!sense) {
wacom_wac->tool[0] = 0;
wacom_wac->id[0] = 0;
wacom_wac->serial[0] = 0;
}
}
static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->touch_input;
unsigned touch_max = wacom_wac->features.touch_max;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
case HID_GD_X:
if (touch_max == 1)
wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 4);
else
wacom_map_usage(input, usage, field, EV_ABS,
ABS_MT_POSITION_X, 4);
break;
case HID_GD_Y:
if (touch_max == 1)
wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 4);
else
wacom_map_usage(input, usage, field, EV_ABS,
ABS_MT_POSITION_Y, 4);
break;
case HID_DG_WIDTH:
case HID_DG_HEIGHT:
wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MAJOR, 0);
wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MINOR, 0);
input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0);
break;
case HID_DG_TIPSWITCH:
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
break;
case HID_DG_CONTACTCOUNT:
wacom_wac->hid_data.cc_report = field->report->id;
wacom_wac->hid_data.cc_index = field->index;
wacom_wac->hid_data.cc_value_index = usage->usage_index;
break;
case HID_DG_CONTACTID:
if ((field->logical_maximum - field->logical_minimum) < touch_max) {
/*
* The HID descriptor for G11 sensors leaves logical
* maximum set to '1' despite it being a multitouch
* device. Override to a sensible number.
*/
field->logical_maximum = 255;
}
break;
case HID_DG_SCANTIME:
wacom_map_usage(input, usage, field, EV_MSC, MSC_TIMESTAMP, 0);
break;
}
}
static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
struct input_dev *input)
{
struct hid_data *hid_data = &wacom_wac->hid_data;
bool mt = wacom_wac->features.touch_max > 1;
bool prox = hid_data->tipswitch &&
report_touch_events(wacom_wac);
if (touch_is_muted(wacom_wac)) {
if (!wacom_wac->shared->touch_down)
return;
prox = false;
}
wacom_wac->hid_data.num_received++;
if (wacom_wac->hid_data.num_received > wacom_wac->hid_data.num_expected)
return;
if (mt) {
int slot;
slot = input_mt_get_slot_by_key(input, hid_data->id);
if (slot < 0) {
return;
} else {
struct input_mt_slot *ps = &input->mt->slots[slot];
int mt_id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
if (!prox && mt_id < 0) {
// No data to send for this slot; short-circuit
return;
}
}
input_mt_slot(input, slot);
input_mt_report_slot_state(input, MT_TOOL_FINGER, prox);
}
else {
input_report_key(input, BTN_TOUCH, prox);
}
if (prox) {
input_report_abs(input, mt ? ABS_MT_POSITION_X : ABS_X,
hid_data->x);
input_report_abs(input, mt ? ABS_MT_POSITION_Y : ABS_Y,
hid_data->y);
if (test_bit(ABS_MT_TOUCH_MAJOR, input->absbit)) {
input_report_abs(input, ABS_MT_TOUCH_MAJOR, max(hid_data->width, hid_data->height));
input_report_abs(input, ABS_MT_TOUCH_MINOR, min(hid_data->width, hid_data->height));
if (hid_data->width != hid_data->height)
input_report_abs(input, ABS_MT_ORIENTATION, hid_data->width <= hid_data->height ? 0 : 1);
}
}
}
static bool wacom_wac_slot_is_active(struct input_dev *dev, int key)
{
struct input_mt *mt = dev->mt;
struct input_mt_slot *s;
if (!mt)
return false;
for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
if (s->key == key &&
input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) {
return true;
}
}
return false;
}
static void wacom_wac_finger_event(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage, __s32 value)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
struct wacom_features *features = &wacom->wacom_wac.features;
if (touch_is_muted(wacom_wac) && !wacom_wac->shared->touch_down)
return;
if (wacom_wac->is_invalid_bt_frame)
return;
switch (equivalent_usage) {
case HID_DG_CONFIDENCE:
wacom_wac->hid_data.confidence = value;
break;
case HID_GD_X:
wacom_wac->hid_data.x = value;
break;
case HID_GD_Y:
wacom_wac->hid_data.y = value;
break;
case HID_DG_WIDTH:
wacom_wac->hid_data.width = value;
break;
case HID_DG_HEIGHT:
wacom_wac->hid_data.height = value;
break;
case HID_DG_CONTACTID:
wacom_wac->hid_data.id = value;
break;
case HID_DG_TIPSWITCH:
wacom_wac->hid_data.tipswitch = value;
break;
case WACOM_HID_WT_REPORT_VALID:
wacom_wac->is_invalid_bt_frame = !value;
return;
case HID_DG_CONTACTMAX:
if (!features->touch_max) {
features->touch_max = value;
} else {
hid_warn(hdev, "%s: ignoring attempt to overwrite non-zero touch_max "
"%d -> %d\n", __func__, features->touch_max, value);
}
return;
}
if (usage->usage_index + 1 == field->report_count) {
if (equivalent_usage == wacom_wac->hid_data.last_slot_field) {
bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input,
wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch;
if (wacom_wac->hid_data.confidence || touch_removed) {
wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
}
}
}
}
static void wacom_wac_finger_pre_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct hid_data* hid_data = &wacom_wac->hid_data;
int i;
if (touch_is_muted(wacom_wac) && !wacom_wac->shared->touch_down)
return;
wacom_wac->is_invalid_bt_frame = false;
hid_data->confidence = true;
hid_data->cc_report = 0;
hid_data->cc_index = -1;
hid_data->cc_value_index = -1;
for (i = 0; i < report->maxfield; i++) {
struct hid_field *field = report->field[i];
int j;
for (j = 0; j < field->maxusage; j++) {
struct hid_usage *usage = &field->usage[j];
unsigned int equivalent_usage =
wacom_equivalent_usage(usage->hid);
switch (equivalent_usage) {
case HID_GD_X:
case HID_GD_Y:
case HID_DG_WIDTH:
case HID_DG_HEIGHT:
case HID_DG_CONTACTID:
case HID_DG_INRANGE:
case HID_DG_INVERT:
case HID_DG_TIPSWITCH:
hid_data->last_slot_field = equivalent_usage;
break;
case HID_DG_CONTACTCOUNT:
hid_data->cc_report = report->id;
hid_data->cc_index = i;
hid_data->cc_value_index = j;
break;
}
}
}
if (hid_data->cc_report != 0 &&
hid_data->cc_index >= 0) {
struct hid_field *field = report->field[hid_data->cc_index];
int value = field->value[hid_data->cc_value_index];
if (value) {
hid_data->num_expected = value;
hid_data->num_received = 0;
}
}
else {
hid_data->num_expected = wacom_wac->features.touch_max;
hid_data->num_received = 0;
}
}
static void wacom_wac_finger_report(struct hid_device *hdev,
struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct input_dev *input = wacom_wac->touch_input;
unsigned touch_max = wacom_wac->features.touch_max;
/* if there was nothing to process, don't send an empty sync */
if (wacom_wac->hid_data.num_expected == 0)
return;
/* If more packets of data are expected, give us a chance to
* process them rather than immediately syncing a partial
* update.
*/
if (wacom_wac->hid_data.num_received < wacom_wac->hid_data.num_expected)
return;
if (touch_max > 1)
input_mt_sync_frame(input);
input_sync(input);
wacom_wac->hid_data.num_received = 0;
wacom_wac->hid_data.num_expected = 0;
/* keep touch state for pen event */
wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);
}
void wacom_wac_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom_wac->features;
if (WACOM_DIRECT_DEVICE(field))
features->device_type |= WACOM_DEVICETYPE_DIRECT;
/* usage tests must precede field tests */
if (WACOM_BATTERY_USAGE(usage))
wacom_wac_battery_usage_mapping(hdev, field, usage);
else if (WACOM_PAD_FIELD(field))
wacom_wac_pad_usage_mapping(hdev, field, usage);
else if (WACOM_PEN_FIELD(field))
wacom_wac_pen_usage_mapping(hdev, field, usage);
else if (WACOM_FINGER_FIELD(field))
wacom_wac_finger_usage_mapping(hdev, field, usage);
}
void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct wacom *wacom = hid_get_drvdata(hdev);
if (wacom->wacom_wac.features.type != HID_GENERIC)
return;
if (value > field->logical_maximum || value < field->logical_minimum)
return;
/* usage tests must precede field tests */
if (WACOM_BATTERY_USAGE(usage))
wacom_wac_battery_event(hdev, field, usage, value);
else if (WACOM_PAD_FIELD(field))
wacom_wac_pad_event(hdev, field, usage, value);
else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
wacom_wac_pen_event(hdev, field, usage, value);
else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
wacom_wac_finger_event(hdev, field, usage, value);
}
static void wacom_report_events(struct hid_device *hdev,
struct hid_report *report, int collection_index,
int field_index)
{
int r;
for (r = field_index; r < report->maxfield; r++) {
struct hid_field *field;
unsigned count, n;
field = report->field[r];
count = field->report_count;
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
continue;
for (n = 0 ; n < count; n++) {
if (field->usage[n].collection_index == collection_index)
wacom_wac_event(hdev, field, &field->usage[n],
field->value[n]);
else
return;
}
}
}
static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
int collection_index, struct hid_field *field,
int field_index)
{
struct wacom *wacom = hid_get_drvdata(hdev);
wacom_report_events(hdev, report, collection_index, field_index);
/*
* Non-input reports may be sent prior to the device being
* completely initialized. Since only their events need
* to be processed, exit after 'wacom_report_events' has
* been called to prevent potential crashes in the report-
* processing functions.
*/
if (report->type != HID_INPUT_REPORT)
return -1;
if (WACOM_PAD_FIELD(field))
return 0;
else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
wacom_wac_pen_report(hdev, report);
else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
wacom_wac_finger_report(hdev, report);
return 0;
}
void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
{
struct wacom *wacom = hid_get_drvdata(hdev);
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct hid_field *field;
bool pad_in_hid_field = false, pen_in_hid_field = false,
finger_in_hid_field = false, true_pad = false;
int r;
int prev_collection = -1;
if (wacom_wac->features.type != HID_GENERIC)
return;
for (r = 0; r < report->maxfield; r++) {
field = report->field[r];
if (WACOM_PAD_FIELD(field))
pad_in_hid_field = true;
if (WACOM_PEN_FIELD(field))
pen_in_hid_field = true;
if (WACOM_FINGER_FIELD(field))
finger_in_hid_field = true;
if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY)
true_pad = true;
}
wacom_wac_battery_pre_report(hdev, report);
if (pad_in_hid_field && wacom->wacom_wac.pad_input)
wacom_wac_pad_pre_report(hdev, report);
if (pen_in_hid_field && wacom->wacom_wac.pen_input)
wacom_wac_pen_pre_report(hdev, report);
if (finger_in_hid_field && wacom->wacom_wac.touch_input)
wacom_wac_finger_pre_report(hdev, report);
for (r = 0; r < report->maxfield; r++) {
field = report->field[r];
if (field->usage[0].collection_index != prev_collection) {
if (wacom_wac_collection(hdev, report,
field->usage[0].collection_index, field, r) < 0)
return;
prev_collection = field->usage[0].collection_index;
}
}
wacom_wac_battery_report(hdev, report);
if (true_pad && wacom->wacom_wac.pad_input)
wacom_wac_pad_report(hdev, report, field);
}
static int wacom_bpt_touch(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
struct input_dev *input = wacom->touch_input;
struct input_dev *pad_input = wacom->pad_input;
unsigned char *data = wacom->data;
int i;
if (data[0] != 0x02)
return 0;
for (i = 0; i < 2; i++) {
int offset = (data[1] & 0x80) ? (8 * i) : (9 * i);
bool touch = report_touch_events(wacom)
&& (data[offset + 3] & 0x80);
input_mt_slot(input, i);
input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
if (touch) {
int x = get_unaligned_be16(&data[offset + 3]) & 0x7ff;
int y = get_unaligned_be16(&data[offset + 5]) & 0x7ff;
if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
x <<= 5;
y <<= 5;
}
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
}
}
input_mt_sync_frame(input);
input_report_key(pad_input, BTN_LEFT, (data[1] & 0x08) != 0);
input_report_key(pad_input, BTN_FORWARD, (data[1] & 0x04) != 0);
input_report_key(pad_input, BTN_BACK, (data[1] & 0x02) != 0);
input_report_key(pad_input, BTN_RIGHT, (data[1] & 0x01) != 0);
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
return 1;
}
static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
{
struct wacom_features *features = &wacom->features;
struct input_dev *input = wacom->touch_input;
bool touch = data[1] & 0x80;
int slot = input_mt_get_slot_by_key(input, data[0]);
if (slot < 0)
return;
touch = touch && report_touch_events(wacom);
input_mt_slot(input, slot);
input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
if (touch) {
int x = (data[2] << 4) | (data[4] >> 4);
int y = (data[3] << 4) | (data[4] & 0x0f);
int width, height;
if (features->type >= INTUOSPS && features->type <= INTUOSHT2) {
width = data[5] * 100;
height = data[6] * 100;
} else {
/*
* "a" is a scaled-down area which we assume is
* roughly circular and which can be described as:
* a=(pi*r^2)/C.
*/
int a = data[5];
int x_res = input_abs_get_res(input, ABS_MT_POSITION_X);
int y_res = input_abs_get_res(input, ABS_MT_POSITION_Y);
width = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
height = width * y_res / x_res;
}
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
input_report_abs(input, ABS_MT_TOUCH_MAJOR, width);
input_report_abs(input, ABS_MT_TOUCH_MINOR, height);
}
}
static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
{
struct input_dev *input = wacom->pad_input;
struct wacom_features *features = &wacom->features;
if (features->type == INTUOSHT || features->type == INTUOSHT2) {
input_report_key(input, BTN_LEFT, (data[1] & 0x02) != 0);
input_report_key(input, BTN_BACK, (data[1] & 0x08) != 0);
} else {
input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
}
input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
}
static int wacom_bpt3_touch(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
int count = data[1] & 0x07;
int touch_changed = 0, i;
if (data[0] != 0x02)
return 0;
/* data has up to 7 fixed sized 8-byte messages starting at data[2] */
for (i = 0; i < count; i++) {
int offset = (8 * i) + 2;
int msg_id = data[offset];
if (msg_id >= 2 && msg_id <= 17) {
wacom_bpt3_touch_msg(wacom, data + offset);
touch_changed++;
} else if (msg_id == 128)
wacom_bpt3_button_msg(wacom, data + offset);
}
/* only update touch if we actually have a touchpad and touch data changed */
if (wacom->touch_input && touch_changed) {
input_mt_sync_frame(wacom->touch_input);
wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
}
return 1;
}
static int wacom_bpt_pen(struct wacom_wac *wacom)
{
struct wacom_features *features = &wacom->features;
struct input_dev *input = wacom->pen_input;
unsigned char *data = wacom->data;
int x = 0, y = 0, p = 0, d = 0;
bool pen = false, btn1 = false, btn2 = false;
bool range, prox, rdy;
if (data[0] != WACOM_REPORT_PENABLED)
return 0;
range = (data[1] & 0x80) == 0x80;
prox = (data[1] & 0x40) == 0x40;
rdy = (data[1] & 0x20) == 0x20;
wacom->shared->stylus_in_proximity = range;
if (delay_pen_events(wacom))
return 0;
if (rdy) {
p = le16_to_cpup((__le16 *)&data[6]);
pen = data[1] & 0x01;
btn1 = data[1] & 0x02;
btn2 = data[1] & 0x04;
}
if (prox) {
x = le16_to_cpup((__le16 *)&data[2]);
y = le16_to_cpup((__le16 *)&data[4]);
if (data[1] & 0x08) {
wacom->tool[0] = BTN_TOOL_RUBBER;
wacom->id[0] = ERASER_DEVICE_ID;
} else {
wacom->tool[0] = BTN_TOOL_PEN;
wacom->id[0] = STYLUS_DEVICE_ID;
}
wacom->reporting_data = true;
}
if (range) {
/*
* Convert distance from out prox to distance from tablet.
* distance will be greater than distance_max once
* touching and applying pressure; do not report negative
* distance.
*/
if (data[8] <= features->distance_max)
d = features->distance_max - data[8];
} else {
wacom->id[0] = 0;
}
if (wacom->reporting_data) {
input_report_key(input, BTN_TOUCH, pen);
input_report_key(input, BTN_STYLUS, btn1);
input_report_key(input, BTN_STYLUS2, btn2);
if (prox || !range) {
input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y);
}
input_report_abs(input, ABS_PRESSURE, p);
input_report_abs(input, ABS_DISTANCE, d);
input_report_key(input, wacom->tool[0], range); /* PEN or RUBBER */
input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
}
if (!range) {
wacom->reporting_data = false;
}
return 1;
}
static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
{
struct wacom_features *features = &wacom->features;
if ((features->type == INTUOSHT2) &&
(features->device_type & WACOM_DEVICETYPE_PEN))
return wacom_intuos_irq(wacom);
else if (len == WACOM_PKGLEN_BBTOUCH)
return wacom_bpt_touch(wacom);
else if (len == WACOM_PKGLEN_BBTOUCH3)
return wacom_bpt3_touch(wacom);
else if (len == WACOM_PKGLEN_BBFUN || len == WACOM_PKGLEN_BBPEN)
return wacom_bpt_pen(wacom);
return 0;
}
static void wacom_bamboo_pad_pen_event(struct wacom_wac *wacom,
unsigned char *data)
{
unsigned char prefix;
/*
* We need to reroute the event from the debug interface to the
* pen interface.
* We need to add the report ID to the actual pen report, so we
* temporary overwrite the first byte to prevent having to kzalloc/kfree
* and memcpy the report.
*/
prefix = data[0];
data[0] = WACOM_REPORT_BPAD_PEN;
/*
* actually reroute the event.
* No need to check if wacom->shared->pen is valid, hid_input_report()
* will check for us.
*/
hid_input_report(wacom->shared->pen, HID_INPUT_REPORT, data,
WACOM_PKGLEN_PENABLED, 1);
data[0] = prefix;
}
static int wacom_bamboo_pad_touch_event(struct wacom_wac *wacom,
unsigned char *data)
{
struct input_dev *input = wacom->touch_input;
unsigned char *finger_data, prefix;
unsigned id;
int x, y;
bool valid;
prefix = data[0];
for (id = 0; id < wacom->features.touch_max; id++) {
valid = !!(prefix & BIT(id)) &&
report_touch_events(wacom);
input_mt_slot(input, id);
input_mt_report_slot_state(input, MT_TOOL_FINGER, valid);
if (!valid)
continue;
finger_data = data + 1 + id * 3;
x = finger_data[0] | ((finger_data[1] & 0x0f) << 8);
y = (finger_data[2] << 4) | (finger_data[1] >> 4);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
}
input_mt_sync_frame(input);
input_report_key(input, BTN_LEFT, prefix & 0x40);
input_report_key(input, BTN_RIGHT, prefix & 0x80);
/* keep touch state for pen event */
wacom->shared->touch_down = !!prefix && report_touch_events(wacom);
return 1;
}
static int wacom_bamboo_pad_irq(struct wacom_wac *wacom, size_t len)
{
unsigned char *data = wacom->data;
if (!((len == WACOM_PKGLEN_BPAD_TOUCH) ||
(len == WACOM_PKGLEN_BPAD_TOUCH_USB)) ||
(data[0] != WACOM_REPORT_BPAD_TOUCH))
return 0;
if (data[1] & 0x01)
wacom_bamboo_pad_pen_event(wacom, &data[1]);
if (data[1] & 0x02)
return wacom_bamboo_pad_touch_event(wacom, &data[9]);
return 0;
}
static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
{
unsigned char *data = wacom->data;
int connected;
if (len != WACOM_PKGLEN_WIRELESS || data[0] != WACOM_REPORT_WL)
return 0;
connected = data[1] & 0x01;
if (connected) {
int pid, battery, charging;
if ((wacom->shared->type == INTUOSHT ||
wacom->shared->type == INTUOSHT2) &&
wacom->shared->touch_input &&
wacom->shared->touch_max) {
input_report_switch(wacom->shared->touch_input,
SW_MUTE_DEVICE, data[5] & 0x40);
input_sync(wacom->shared->touch_input);
}
pid = get_unaligned_be16(&data[6]);
battery = (data[5] & 0x3f) * 100 / 31;
charging = !!(data[5] & 0x80);
if (wacom->pid != pid) {
wacom->pid = pid;
wacom_schedule_work(wacom, WACOM_WORKER_WIRELESS);
}
wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery, charging, 1, 0);
} else if (wacom->pid != 0) {
/* disconnected while previously connected */
wacom->pid = 0;
wacom_schedule_work(wacom, WACOM_WORKER_WIRELESS);
wacom_notify_battery(wacom, POWER_SUPPLY_STATUS_UNKNOWN, 0, 0, 0, 0);
}
return 0;
}
static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
struct wacom_features *features = &wacom_wac->features;
unsigned char *data = wacom_wac->data;
if (data[0] != WACOM_REPORT_USB)
return 0;
if ((features->type == INTUOSHT ||
features->type == INTUOSHT2) &&
wacom_wac->shared->touch_input &&
features->touch_max) {
input_report_switch(wacom_wac->shared->touch_input,
SW_MUTE_DEVICE, data[8] & 0x40);
input_sync(wacom_wac->shared->touch_input);
}
if (data[9] & 0x02) { /* wireless module is attached */
int battery = (data[8] & 0x3f) * 100 / 31;
bool charging = !!(data[8] & 0x80);
features->quirks |= WACOM_QUIRK_BATTERY;
wacom_notify_battery(wacom_wac, WACOM_POWER_SUPPLY_STATUS_AUTO,
battery, charging, battery || charging, 1);
}
else if ((features->quirks & WACOM_QUIRK_BATTERY) &&
wacom->battery.battery) {
features->quirks &= ~WACOM_QUIRK_BATTERY;
wacom_notify_battery(wacom_wac, POWER_SUPPLY_STATUS_UNKNOWN, 0, 0, 0, 0);
}
return 0;
}
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
{
bool sync;
switch (wacom_wac->features.type) {
case PENPARTNER:
sync = wacom_penpartner_irq(wacom_wac);
break;
case PL:
sync = wacom_pl_irq(wacom_wac);
break;
case WACOM_G4:
case GRAPHIRE:
case GRAPHIRE_BT:
case WACOM_MO:
sync = wacom_graphire_irq(wacom_wac);
break;
case PTU:
sync = wacom_ptu_irq(wacom_wac);
break;
case DTU:
sync = wacom_dtu_irq(wacom_wac);
break;
case DTUS:
case DTUSX:
sync = wacom_dtus_irq(wacom_wac);
break;
case INTUOS:
case INTUOS3S:
case INTUOS3:
case INTUOS3L:
case INTUOS4S:
case INTUOS4:
case INTUOS4L:
case CINTIQ:
case WACOM_BEE:
case WACOM_13HD:
case WACOM_21UX2:
case WACOM_22HD:
case WACOM_24HD:
case WACOM_27QHD:
case DTK:
case CINTIQ_HYBRID:
case CINTIQ_COMPANION_2:
sync = wacom_intuos_irq(wacom_wac);
break;
case INTUOS4WL:
sync = wacom_intuos_bt_irq(wacom_wac, len);
break;
case WACOM_24HDT:
case WACOM_27QHDT:
sync = wacom_24hdt_irq(wacom_wac);
break;
case INTUOS5S:
case INTUOS5:
case INTUOS5L:
case INTUOSPS:
case INTUOSPM:
case INTUOSPL:
if (len == WACOM_PKGLEN_BBTOUCH3)
sync = wacom_bpt3_touch(wacom_wac);
else if (wacom_wac->data[0] == WACOM_REPORT_USB)
sync = wacom_status_irq(wacom_wac, len);
else
sync = wacom_intuos_irq(wacom_wac);
break;
case INTUOSP2_BT:
case INTUOSP2S_BT:
case INTUOSHT3_BT:
sync = wacom_intuos_pro2_bt_irq(wacom_wac, len);
break;
case TABLETPC:
case TABLETPCE:
case TABLETPC2FG:
case MTSCREEN:
case MTTPC:
case MTTPC_B:
sync = wacom_tpc_irq(wacom_wac, len);
break;
case BAMBOO_PT:
case BAMBOO_PEN:
case BAMBOO_TOUCH:
case INTUOSHT:
case INTUOSHT2:
if (wacom_wac->data[0] == WACOM_REPORT_USB)
sync = wacom_status_irq(wacom_wac, len);
else
sync = wacom_bpt_irq(wacom_wac, len);
break;
case BAMBOO_PAD:
sync = wacom_bamboo_pad_irq(wacom_wac, len);
break;
case WIRELESS:
sync = wacom_wireless_irq(wacom_wac, len);
break;
case REMOTE:
sync = false;
if (wacom_wac->data[0] == WACOM_REPORT_DEVICE_LIST)
wacom_remote_status_irq(wacom_wac, len);
else
sync = wacom_remote_irq(wacom_wac, len);
break;
default:
sync = false;
break;
}
if (sync) {
if (wacom_wac->pen_input)
input_sync(wacom_wac->pen_input);
if (wacom_wac->touch_input)
input_sync(wacom_wac->touch_input);
if (wacom_wac->pad_input)
input_sync(wacom_wac->pad_input);
}
}
static void wacom_setup_basic_pro_pen(struct wacom_wac *wacom_wac)
{
struct input_dev *input_dev = wacom_wac->pen_input;
input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
input_set_abs_params(input_dev, ABS_DISTANCE,
0, wacom_wac->features.distance_max, wacom_wac->features.distance_fuzz, 0);
}
static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
{
struct input_dev *input_dev = wacom_wac->pen_input;
struct wacom_features *features = &wacom_wac->features;
wacom_setup_basic_pro_pen(wacom_wac);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
__set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
__set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
input_set_abs_params(input_dev, ABS_TILT_X, -64, 63, features->tilt_fuzz, 0);
input_abs_set_res(input_dev, ABS_TILT_X, 57);
input_set_abs_params(input_dev, ABS_TILT_Y, -64, 63, features->tilt_fuzz, 0);
input_abs_set_res(input_dev, ABS_TILT_Y, 57);
}
static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
{
struct input_dev *input_dev = wacom_wac->pen_input;
input_set_capability(input_dev, EV_REL, REL_WHEEL);
wacom_setup_cintiq(wacom_wac);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_MIDDLE, input_dev->keybit);
__set_bit(BTN_SIDE, input_dev->keybit);
__set_bit(BTN_EXTRA, input_dev->keybit);
__set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
__set_bit(BTN_TOOL_LENS, input_dev->keybit);
input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
input_abs_set_res(input_dev, ABS_RZ, 287);
input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
}
void wacom_setup_device_quirks(struct wacom *wacom)
{
struct wacom_wac *wacom_wac = &wacom->wacom_wac;
struct wacom_features *features = &wacom->wacom_wac.features;
/* The pen and pad share the same interface on most devices */
if (features->type == GRAPHIRE_BT || features->type == WACOM_G4 ||
features->type == DTUS ||
(features->type >= INTUOS3S && features->type <= WACOM_MO)) {
if (features->device_type & WACOM_DEVICETYPE_PEN)
features->device_type |= WACOM_DEVICETYPE_PAD;
}
/* touch device found but size is not defined. use default */
if (features->device_type & WACOM_DEVICETYPE_TOUCH && !features->x_max) {
features->x_max = 1023;
features->y_max = 1023;
}
/*
* Intuos5/Pro and Bamboo 3rd gen have no useful data about its
* touch interface in its HID descriptor. If this is the touch
* interface (PacketSize of WACOM_PKGLEN_BBTOUCH3), override the
* tablet values.
*/
if ((features->type >= INTUOS5S && features->type <= INTUOSPL) ||
(features->type >= INTUOSHT && features->type <= BAMBOO_PT)) {
if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
if (features->touch_max)
features->device_type |= WACOM_DEVICETYPE_TOUCH;
if (features->type >= INTUOSHT && features->type <= BAMBOO_PT)
features->device_type |= WACOM_DEVICETYPE_PAD;
if (features->type == INTUOSHT2) {
features->x_max = features->x_max / 10;
features->y_max = features->y_max / 10;
}
else {
features->x_max = 4096;
features->y_max = 4096;
}
}
else if (features->pktlen == WACOM_PKGLEN_BBTOUCH) {
features->device_type |= WACOM_DEVICETYPE_PAD;
}
}
/*
* Hack for the Bamboo One:
* the device presents a PAD/Touch interface as most Bamboos and even
* sends ghosts PAD data on it. However, later, we must disable this
* ghost interface, and we can not detect it unless we set it here
* to WACOM_DEVICETYPE_PAD or WACOM_DEVICETYPE_TOUCH.
*/
if (features->type == BAMBOO_PEN &&
features->pktlen == WACOM_PKGLEN_BBTOUCH3)
features->device_type |= WACOM_DEVICETYPE_PAD;
/*
* Raw Wacom-mode pen and touch events both come from interface
* 0, whose HID descriptor has an application usage of 0xFF0D
* (i.e., WACOM_HID_WD_DIGITIZER). We route pen packets back
* out through the HID_GENERIC device created for interface 1,
* so rewrite this one to be of type WACOM_DEVICETYPE_TOUCH.
*/
if (features->type == BAMBOO_PAD)
features->device_type = WACOM_DEVICETYPE_TOUCH;
if (features->type == REMOTE)
features->device_type = WACOM_DEVICETYPE_PAD;
if (features->type == INTUOSP2_BT ||
features->type == INTUOSP2S_BT) {
features->device_type |= WACOM_DEVICETYPE_PEN |
WACOM_DEVICETYPE_PAD |
WACOM_DEVICETYPE_TOUCH;
features->quirks |= WACOM_QUIRK_BATTERY;
}
if (features->type == INTUOSHT3_BT) {
features->device_type |= WACOM_DEVICETYPE_PEN |
WACOM_DEVICETYPE_PAD;
features->quirks |= WACOM_QUIRK_BATTERY;
}
switch (features->type) {
case PL:
case DTU:
case DTUS:
case DTUSX:
case WACOM_21UX2:
case WACOM_22HD:
case DTK:
case WACOM_24HD:
case WACOM_27QHD:
case CINTIQ_HYBRID:
case CINTIQ_COMPANION_2:
case CINTIQ:
case WACOM_BEE:
case WACOM_13HD:
case WACOM_24HDT:
case WACOM_27QHDT:
case TABLETPC:
case TABLETPCE:
case TABLETPC2FG:
case MTSCREEN:
case MTTPC:
case MTTPC_B:
features->device_type |= WACOM_DEVICETYPE_DIRECT;
break;
}
if (wacom->hdev->bus == BUS_BLUETOOTH)
features->quirks |= WACOM_QUIRK_BATTERY;
/* quirk for bamboo touch with 2 low res touches */
if ((features->type == BAMBOO_PT || features->type == BAMBOO_TOUCH) &&
features->pktlen == WACOM_PKGLEN_BBTOUCH) {
features->x_max <<= 5;
features->y_max <<= 5;
features->x_fuzz <<= 5;
features->y_fuzz <<= 5;
features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
}
if (features->type == WIRELESS) {
if (features->device_type == WACOM_DEVICETYPE_WL_MONITOR) {
features->quirks |= WACOM_QUIRK_BATTERY;
}
}
if (features->type == REMOTE)
features->device_type |= WACOM_DEVICETYPE_WL_MONITOR;
/* HID descriptor for DTK-2451 / DTH-2452 claims to report lots
* of things it shouldn't. Lets fix up the damage...
*/
if (wacom->hdev->product == 0x382 || wacom->hdev->product == 0x37d) {
features->quirks &= ~WACOM_QUIRK_TOOLSERIAL;
__clear_bit(BTN_TOOL_BRUSH, wacom_wac->pen_input->keybit);
__clear_bit(BTN_TOOL_PENCIL, wacom_wac->pen_input->keybit);
__clear_bit(BTN_TOOL_AIRBRUSH, wacom_wac->pen_input->keybit);
__clear_bit(ABS_Z, wacom_wac->pen_input->absbit);
__clear_bit(ABS_DISTANCE, wacom_wac->pen_input->absbit);
__clear_bit(ABS_TILT_X, wacom_wac->pen_input->absbit);
__clear_bit(ABS_TILT_Y, wacom_wac->pen_input->absbit);
__clear_bit(ABS_WHEEL, wacom_wac->pen_input->absbit);
__clear_bit(ABS_MISC, wacom_wac->pen_input->absbit);
__clear_bit(MSC_SERIAL, wacom_wac->pen_input->mscbit);
__clear_bit(EV_MSC, wacom_wac->pen_input->evbit);
}
}
int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
struct wacom_features *features = &wacom_wac->features;
if (!(features->device_type & WACOM_DEVICETYPE_PEN))
return -ENODEV;
if (features->device_type & WACOM_DEVICETYPE_DIRECT)
__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
else
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
if (features->type == HID_GENERIC)
/* setup has already been done */
return 0;
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
__set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(ABS_MISC, input_dev->absbit);
input_set_abs_params(input_dev, ABS_X, 0 + features->offset_left,
features->x_max - features->offset_right,
features->x_fuzz, 0);
input_set_abs_params(input_dev, ABS_Y, 0 + features->offset_top,
features->y_max - features->offset_bottom,
features->y_fuzz, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0,
features->pressure_max, features->pressure_fuzz, 0);
/* penabled devices have fixed resolution for each model */
input_abs_set_res(input_dev, ABS_X, features->x_resolution);
input_abs_set_res(input_dev, ABS_Y, features->y_resolution);
switch (features->type) {
case GRAPHIRE_BT:
__clear_bit(ABS_MISC, input_dev->absbit);
fallthrough;
case WACOM_MO:
case WACOM_G4:
input_set_abs_params(input_dev, ABS_DISTANCE, 0,
features->distance_max,
features->distance_fuzz, 0);
fallthrough;
case GRAPHIRE:
input_set_capability(input_dev, EV_REL, REL_WHEEL);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_MIDDLE, input_dev->keybit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
break;
case WACOM_27QHD:
case WACOM_24HD:
case DTK:
case WACOM_22HD:
case WACOM_21UX2:
case WACOM_BEE:
case CINTIQ:
case WACOM_13HD:
case CINTIQ_HYBRID:
case CINTIQ_COMPANION_2:
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
input_abs_set_res(input_dev, ABS_Z, 287);
wacom_setup_cintiq(wacom_wac);
break;
case INTUOS3:
case INTUOS3L:
case INTUOS3S:
case INTUOS4:
case INTUOS4WL:
case INTUOS4L:
case INTUOS4S:
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
input_abs_set_res(input_dev, ABS_Z, 287);
fallthrough;
case INTUOS:
wacom_setup_intuos(wacom_wac);
break;
case INTUOS5:
case INTUOS5L:
case INTUOSPM:
case INTUOSPL:
case INTUOS5S:
case INTUOSPS:
case INTUOSP2_BT:
case INTUOSP2S_BT:
input_set_abs_params(input_dev, ABS_DISTANCE, 0,
features->distance_max,
features->distance_fuzz, 0);
input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
input_abs_set_res(input_dev, ABS_Z, 287);
wacom_setup_intuos(wacom_wac);
break;
case WACOM_24HDT:
case WACOM_27QHDT:
case MTSCREEN:
case MTTPC:
case MTTPC_B:
case TABLETPC2FG:
case TABLETPC:
case TABLETPCE:
__clear_bit(ABS_MISC, input_dev->absbit);
fallthrough;
case DTUS:
case DTUSX:
case PL:
case DTU:
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
break;
case PTU:
__set_bit(BTN_STYLUS2, input_dev->keybit);
fallthrough;
case PENPARTNER:
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
break;
case INTUOSHT:
case BAMBOO_PT:
case BAMBOO_PEN:
case INTUOSHT2:
case INTUOSHT3_BT:
if (features->type == INTUOSHT2 ||
features->type == INTUOSHT3_BT) {
wacom_setup_basic_pro_pen(wacom_wac);
} else {
__clear_bit(ABS_MISC, input_dev->absbit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
input_set_abs_params(input_dev, ABS_DISTANCE, 0,
features->distance_max,
features->distance_fuzz, 0);
}
break;
case BAMBOO_PAD:
__clear_bit(ABS_MISC, input_dev->absbit);
break;
}
return 0;
}
int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
struct wacom_features *features = &wacom_wac->features;
if (!(features->device_type & WACOM_DEVICETYPE_TOUCH))
return -ENODEV;
if (features->device_type & WACOM_DEVICETYPE_DIRECT)
__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
else
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
if (features->type == HID_GENERIC)
/* setup has already been done */
return 0;
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
__set_bit(BTN_TOUCH, input_dev->keybit);
if (features->touch_max == 1) {
input_set_abs_params(input_dev, ABS_X, 0,
features->x_max, features->x_fuzz, 0);
input_set_abs_params(input_dev, ABS_Y, 0,
features->y_max, features->y_fuzz, 0);
input_abs_set_res(input_dev, ABS_X,
features->x_resolution);
input_abs_set_res(input_dev, ABS_Y,
features->y_resolution);
}
else if (features->touch_max > 1) {
input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0,
features->x_max, features->x_fuzz, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
features->y_max, features->y_fuzz, 0);
input_abs_set_res(input_dev, ABS_MT_POSITION_X,
features->x_resolution);
input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
features->y_resolution);
}
switch (features->type) {
case INTUOSP2_BT:
case INTUOSP2S_BT:
input_dev->evbit[0] |= BIT_MASK(EV_SW);
__set_bit(SW_MUTE_DEVICE, input_dev->swbit);
if (wacom_wac->shared->touch->product == 0x361) {
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
0, 12440, 4, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
0, 8640, 4, 0);
}
else if (wacom_wac->shared->touch->product == 0x360) {
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
0, 8960, 4, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
0, 5920, 4, 0);
}
else if (wacom_wac->shared->touch->product == 0x393) {
input_set_abs_params(input_dev, ABS_MT_POSITION_X,
0, 6400, 4, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
0, 4000, 4, 0);
}
input_abs_set_res(input_dev, ABS_MT_POSITION_X, 40);
input_abs_set_res(input_dev, ABS_MT_POSITION_Y, 40);
fallthrough;
case INTUOS5:
case INTUOS5L:
case INTUOSPM:
case INTUOSPL:
case INTUOS5S:
case INTUOSPS:
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 0, features->y_max, 0, 0);
input_mt_init_slots(input_dev, features->touch_max, INPUT_MT_POINTER);
break;
case WACOM_24HDT:
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, features->x_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR, 0, features->x_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR, 0, features->y_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
fallthrough;
case WACOM_27QHDT:
if (wacom_wac->shared->touch->product == 0x32C ||
wacom_wac->shared->touch->product == 0xF6) {
input_dev->evbit[0] |= BIT_MASK(EV_SW);
__set_bit(SW_MUTE_DEVICE, input_dev->swbit);
wacom_wac->has_mute_touch_switch = true;
wacom_wac->is_soft_touch_switch = true;
}
fallthrough;
case MTSCREEN:
case MTTPC:
case MTTPC_B:
case TABLETPC2FG:
input_mt_init_slots(input_dev, features->touch_max, INPUT_MT_DIRECT);
fallthrough;
case TABLETPC:
case TABLETPCE:
break;
case INTUOSHT:
case INTUOSHT2:
input_dev->evbit[0] |= BIT_MASK(EV_SW);
__set_bit(SW_MUTE_DEVICE, input_dev->swbit);
fallthrough;
case BAMBOO_PT:
case BAMBOO_TOUCH:
if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
input_set_abs_params(input_dev,
ABS_MT_TOUCH_MAJOR,
0, features->x_max, 0, 0);
input_set_abs_params(input_dev,
ABS_MT_TOUCH_MINOR,
0, features->y_max, 0, 0);
}
input_mt_init_slots(input_dev, features->touch_max, INPUT_MT_POINTER);
break;
case BAMBOO_PAD:
input_mt_init_slots(input_dev, features->touch_max,
INPUT_MT_POINTER);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
break;
}
return 0;
}
static int wacom_numbered_button_to_key(int n)
{
if (n < 10)
return BTN_0 + n;
else if (n < 16)
return BTN_A + (n-10);
else if (n < 18)
return BTN_BASE + (n-16);
else
return 0;
}
static void wacom_setup_numbered_buttons(struct input_dev *input_dev,
int button_count)
{
int i;
for (i = 0; i < button_count; i++) {
int key = wacom_numbered_button_to_key(i);
if (key)
__set_bit(key, input_dev->keybit);
}
}
static void wacom_24hd_update_leds(struct wacom *wacom, int mask, int group)
{
struct wacom_led *led;
int i;
bool updated = false;
/*
* 24HD has LED group 1 to the left and LED group 0 to the right.
* So group 0 matches the second half of the buttons and thus the mask
* needs to be shifted.
*/
if (group == 0)
mask >>= 8;
for (i = 0; i < 3; i++) {
led = wacom_led_find(wacom, group, i);
if (!led) {
hid_err(wacom->hdev, "can't find LED %d in group %d\n",
i, group);
continue;
}
if (!updated && mask & BIT(i)) {
led->held = true;
led_trigger_event(&led->trigger, LED_FULL);
} else {
led->held = false;
}
}
}
static bool wacom_is_led_toggled(struct wacom *wacom, int button_count,
int mask, int group)
{
int group_button;
/*
* 21UX2 has LED group 1 to the left and LED group 0
* to the right. We need to reverse the group to match this
* historical behavior.
*/
if (wacom->wacom_wac.features.type == WACOM_21UX2)
group = 1 - group;
group_button = group * (button_count/wacom->led.count);
if (wacom->wacom_wac.features.type == INTUOSP2_BT)
group_button = 8;
return mask & (1 << group_button);
}
static void wacom_update_led(struct wacom *wacom, int button_count, int mask,
int group)
{
struct wacom_led *led, *next_led;
int cur;
bool pressed;
if (wacom->wacom_wac.features.type == WACOM_24HD)
return wacom_24hd_update_leds(wacom, mask, group);
pressed = wacom_is_led_toggled(wacom, button_count, mask, group);
cur = wacom->led.groups[group].select;
led = wacom_led_find(wacom, group, cur);
if (!led) {
hid_err(wacom->hdev, "can't find current LED %d in group %d\n",
cur, group);
return;
}
if (!pressed) {
led->held = false;
return;
}
if (led->held && pressed)
return;
next_led = wacom_led_next(wacom, led);
if (!next_led) {
hid_err(wacom->hdev, "can't find next LED in group %d\n",
group);
return;
}
if (next_led == led)
return;
next_led->held = true;
led_trigger_event(&next_led->trigger,
wacom_leds_brightness_get(next_led));
}
static void wacom_report_numbered_buttons(struct input_dev *input_dev,
int button_count, int mask)
{
struct wacom *wacom = input_get_drvdata(input_dev);
int i;
for (i = 0; i < wacom->led.count; i++)
wacom_update_led(wacom, button_count, mask, i);
for (i = 0; i < button_count; i++) {
int key = wacom_numbered_button_to_key(i);
if (key)
input_report_key(input_dev, key, mask & (1 << i));
}
}
int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
struct wacom_features *features = &wacom_wac->features;
if ((features->type == HID_GENERIC) && features->numbered_buttons > 0)
features->device_type |= WACOM_DEVICETYPE_PAD;
if (!(features->device_type & WACOM_DEVICETYPE_PAD))
return -ENODEV;
if (features->type == REMOTE && input_dev == wacom_wac->pad_input)
return -ENODEV;
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
/* kept for making legacy xf86-input-wacom working with the wheels */
__set_bit(ABS_MISC, input_dev->absbit);
/* kept for making legacy xf86-input-wacom accepting the pad */
if (!(input_dev->absinfo && (input_dev->absinfo[ABS_X].minimum ||
input_dev->absinfo[ABS_X].maximum)))
input_set_abs_params(input_dev, ABS_X, 0, 1, 0, 0);
if (!(input_dev->absinfo && (input_dev->absinfo[ABS_Y].minimum ||
input_dev->absinfo[ABS_Y].maximum)))
input_set_abs_params(input_dev, ABS_Y, 0, 1, 0, 0);
/* kept for making udev and libwacom accepting the pad */
__set_bit(BTN_STYLUS, input_dev->keybit);
wacom_setup_numbered_buttons(input_dev, features->numbered_buttons);
switch (features->type) {
case CINTIQ_HYBRID:
case CINTIQ_COMPANION_2:
case DTK:
case DTUS:
case GRAPHIRE_BT:
break;
case WACOM_MO:
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;
case WACOM_G4:
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
input_set_capability(input_dev, EV_REL, REL_WHEEL);
break;
case WACOM_24HD:
__set_bit(KEY_PROG1, input_dev->keybit);
__set_bit(KEY_PROG2, input_dev->keybit);
__set_bit(KEY_PROG3, input_dev->keybit);
__set_bit(KEY_ONSCREEN_KEYBOARD, input_dev->keybit);
__set_bit(KEY_INFO, input_dev->keybit);
if (!features->oPid)
__set_bit(KEY_BUTTONCONFIG, input_dev->keybit);
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0);
break;
case WACOM_27QHD:
__set_bit(KEY_PROG1, input_dev->keybit);
__set_bit(KEY_PROG2, input_dev->keybit);
__set_bit(KEY_PROG3, input_dev->keybit);
__set_bit(KEY_ONSCREEN_KEYBOARD, input_dev->keybit);
__set_bit(KEY_BUTTONCONFIG, input_dev->keybit);
if (!features->oPid)
__set_bit(KEY_CONTROLPANEL, input_dev->keybit);
input_set_abs_params(input_dev, ABS_X, -2048, 2048, 0, 0);
input_abs_set_res(input_dev, ABS_X, 1024); /* points/g */
input_set_abs_params(input_dev, ABS_Y, -2048, 2048, 0, 0);
input_abs_set_res(input_dev, ABS_Y, 1024);
input_set_abs_params(input_dev, ABS_Z, -2048, 2048, 0, 0);
input_abs_set_res(input_dev, ABS_Z, 1024);
__set_bit(INPUT_PROP_ACCELEROMETER, input_dev->propbit);
break;
case WACOM_22HD:
__set_bit(KEY_PROG1, input_dev->keybit);
__set_bit(KEY_PROG2, input_dev->keybit);
__set_bit(KEY_PROG3, input_dev->keybit);
__set_bit(KEY_BUTTONCONFIG, input_dev->keybit);
__set_bit(KEY_INFO, input_dev->keybit);
fallthrough;
case WACOM_21UX2:
case WACOM_BEE:
case CINTIQ:
input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
break;
case WACOM_13HD:
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;
case INTUOS3:
case INTUOS3L:
input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
fallthrough;
case INTUOS3S:
input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
break;
case INTUOS5:
case INTUOS5L:
case INTUOSPM:
case INTUOSPL:
case INTUOS5S:
case INTUOSPS:
case INTUOSP2_BT:
case INTUOSP2S_BT:
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;
case INTUOS4WL:
/*
* For Bluetooth devices, the udev rule does not work correctly
* for pads unless we add a stylus capability, which forces
* ID_INPUT_TABLET to be set.
*/
__set_bit(BTN_STYLUS, input_dev->keybit);
fallthrough;
case INTUOS4:
case INTUOS4L:
case INTUOS4S:
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;
case INTUOSHT:
case BAMBOO_PT:
case BAMBOO_TOUCH:
case INTUOSHT2:
__clear_bit(ABS_MISC, input_dev->absbit);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
break;
case REMOTE:
input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
break;
case INTUOSHT3_BT:
case HID_GENERIC:
break;
default:
/* no pad supported */
return -ENODEV;
}
return 0;
}
static const struct wacom_features wacom_features_0x00 =
{ "Wacom Penpartner", 5040, 3780, 255, 0,
PENPARTNER, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
static const struct wacom_features wacom_features_0x10 =
{ "Wacom Graphire", 10206, 7422, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x81 =
{ "Wacom Graphire BT", 16704, 12064, 511, 32,
GRAPHIRE_BT, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES, 2 };
static const struct wacom_features wacom_features_0x11 =
{ "Wacom Graphire2 4x5", 10206, 7422, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x12 =
{ "Wacom Graphire2 5x7", 13918, 10206, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x13 =
{ "Wacom Graphire3", 10208, 7424, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x14 =
{ "Wacom Graphire3 6x8", 16704, 12064, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x15 =
{ "Wacom Graphire4 4x5", 10208, 7424, 511, 63,
WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x16 =
{ "Wacom Graphire4 6x8", 16704, 12064, 511, 63,
WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x17 =
{ "Wacom BambooFun 4x5", 14760, 9225, 511, 63,
WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x18 =
{ "Wacom BambooFun 6x8", 21648, 13530, 511, 63,
WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x19 =
{ "Wacom Bamboo1 Medium", 16704, 12064, 511, 63,
GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
static const struct wacom_features wacom_features_0x60 =
{ "Wacom Volito", 5104, 3712, 511, 63,
GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
static const struct wacom_features wacom_features_0x61 =
{ "Wacom PenStation2", 3250, 2320, 255, 63,
GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
static const struct wacom_features wacom_features_0x62 =
{ "Wacom Volito2 4x5", 5104, 3712, 511, 63,
GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
static const struct wacom_features wacom_features_0x63 =
{ "Wacom Volito2 2x3", 3248, 2320, 511, 63,
GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
static const struct wacom_features wacom_features_0x64 =
{ "Wacom PenPartner2", 3250, 2320, 511, 63,
GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
static const struct wacom_features wacom_features_0x65 =
{ "Wacom Bamboo", 14760, 9225, 511, 63,
WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x69 =
{ "Wacom Bamboo1", 5104, 3712, 511, 63,
GRAPHIRE, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
static const struct wacom_features wacom_features_0x6A =
{ "Wacom Bamboo1 4x6", 14760, 9225, 1023, 63,
GRAPHIRE, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x6B =
{ "Wacom Bamboo1 5x8", 21648, 13530, 1023, 63,
GRAPHIRE, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x20 =
{ "Wacom Intuos 4x5", 12700, 10600, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x21 =
{ "Wacom Intuos 6x8", 20320, 16240, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x22 =
{ "Wacom Intuos 9x12", 30480, 24060, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x23 =
{ "Wacom Intuos 12x12", 30480, 31680, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x24 =
{ "Wacom Intuos 12x18", 45720, 31680, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x30 =
{ "Wacom PL400", 5408, 4056, 255, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x31 =
{ "Wacom PL500", 6144, 4608, 255, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x32 =
{ "Wacom PL600", 6126, 4604, 255, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x33 =
{ "Wacom PL600SX", 6260, 5016, 255, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x34 =
{ "Wacom PL550", 6144, 4608, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x35 =
{ "Wacom PL800", 7220, 5780, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x37 =
{ "Wacom PL700", 6758, 5406, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x38 =
{ "Wacom PL510", 6282, 4762, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x39 =
{ "Wacom DTU710", 34080, 27660, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0xC4 =
{ "Wacom DTF521", 6282, 4762, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0xC0 =
{ "Wacom DTF720", 6858, 5506, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0xC2 =
{ "Wacom DTF720a", 6858, 5506, 511, 0,
PL, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x03 =
{ "Wacom Cintiq Partner", 20480, 15360, 511, 0,
PTU, WACOM_PL_RES, WACOM_PL_RES };
static const struct wacom_features wacom_features_0x41 =
{ "Wacom Intuos2 4x5", 12700, 10600, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x42 =
{ "Wacom Intuos2 6x8", 20320, 16240, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x43 =
{ "Wacom Intuos2 9x12", 30480, 24060, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x44 =
{ "Wacom Intuos2 12x12", 30480, 31680, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x45 =
{ "Wacom Intuos2 12x18", 45720, 31680, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xB0 =
{ "Wacom Intuos3 4x5", 25400, 20320, 1023, 63,
INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 4 };
static const struct wacom_features wacom_features_0xB1 =
{ "Wacom Intuos3 6x8", 40640, 30480, 1023, 63,
INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xB2 =
{ "Wacom Intuos3 9x12", 60960, 45720, 1023, 63,
INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xB3 =
{ "Wacom Intuos3 12x12", 60960, 60960, 1023, 63,
INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xB4 =
{ "Wacom Intuos3 12x19", 97536, 60960, 1023, 63,
INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xB5 =
{ "Wacom Intuos3 6x11", 54204, 31750, 1023, 63,
INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xB7 =
{ "Wacom Intuos3 4x6", 31496, 19685, 1023, 63,
INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 4 };
static const struct wacom_features wacom_features_0xB8 =
{ "Wacom Intuos4 4x6", 31496, 19685, 2047, 63,
INTUOS4S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7 };
static const struct wacom_features wacom_features_0xB9 =
{ "Wacom Intuos4 6x9", 44704, 27940, 2047, 63,
INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0xBA =
{ "Wacom Intuos4 8x13", 65024, 40640, 2047, 63,
INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0xBB =
{ "Wacom Intuos4 12x19", 97536, 60960, 2047, 63,
INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0xBC =
{ "Wacom Intuos4 WL", 40640, 25400, 2047, 63,
INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0xBD =
{ "Wacom Intuos4 WL", 40640, 25400, 2047, 63,
INTUOS4WL, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0x26 =
{ "Wacom Intuos5 touch S", 31496, 19685, 2047, 63,
INTUOS5S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7, .touch_max = 16 };
static const struct wacom_features wacom_features_0x27 =
{ "Wacom Intuos5 touch M", 44704, 27940, 2047, 63,
INTUOS5, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 16 };
static const struct wacom_features wacom_features_0x28 =
{ "Wacom Intuos5 touch L", 65024, 40640, 2047, 63,
INTUOS5L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 16 };
static const struct wacom_features wacom_features_0x29 =
{ "Wacom Intuos5 S", 31496, 19685, 2047, 63,
INTUOS5S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7 };
static const struct wacom_features wacom_features_0x2A =
{ "Wacom Intuos5 M", 44704, 27940, 2047, 63,
INTUOS5, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9 };
static const struct wacom_features wacom_features_0x314 =
{ "Wacom Intuos Pro S", 31496, 19685, 2047, 63,
INTUOSPS, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x315 =
{ "Wacom Intuos Pro M", 44704, 27940, 2047, 63,
INTUOSPM, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x317 =
{ "Wacom Intuos Pro L", 65024, 40640, 2047, 63,
INTUOSPL, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0xF4 =
{ "Wacom Cintiq 24HD", 104480, 65600, 2047, 63,
WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 16,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0xF8 =
{ "Wacom Cintiq 24HD touch", 104480, 65600, 2047, 63, /* Pen */
WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 16,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 };
static const struct wacom_features wacom_features_0xF6 =
{ "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x32A =
{ "Wacom Cintiq 27QHD", 120140, 67920, 2047, 63,
WACOM_27QHD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 0,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0x32B =
{ "Wacom Cintiq 27QHD touch", 120140, 67920, 2047, 63,
WACOM_27QHD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 0,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x32C };
static const struct wacom_features wacom_features_0x32C =
{ "Wacom Cintiq 27QHD touch", .type = WACOM_27QHDT,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x32B, .touch_max = 10 };
static const struct wacom_features wacom_features_0x3F =
{ "Wacom Cintiq 21UX", 87200, 65600, 1023, 63,
CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 8 };
static const struct wacom_features wacom_features_0xC5 =
{ "Wacom Cintiq 20WSX", 86680, 54180, 1023, 63,
WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 10 };
static const struct wacom_features wacom_features_0xC6 =
{ "Wacom Cintiq 12WX", 53020, 33440, 1023, 63,
WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 10 };
static const struct wacom_features wacom_features_0x304 =
{ "Wacom Cintiq 13HD", 59552, 33848, 1023, 63,
WACOM_13HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0x333 =
{ "Wacom Cintiq 13HD touch", 59552, 33848, 2047, 63,
WACOM_13HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x335 };
static const struct wacom_features wacom_features_0x335 =
{ "Wacom Cintiq 13HD touch", .type = WACOM_24HDT, /* Touch */
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x333, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0xC7 =
{ "Wacom DTU1931", 37832, 30305, 511, 0,
PL, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xCE =
{ "Wacom DTU2231", 47864, 27011, 511, 0,
DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBMOUSE };
static const struct wacom_features wacom_features_0xF0 =
{ "Wacom DTU1631", 34623, 19553, 511, 0,
DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xFB =
{ "Wacom DTU1031", 22096, 13960, 511, 0,
DTUS, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET };
static const struct wacom_features wacom_features_0x32F =
{ "Wacom DTU1031X", 22672, 12928, 511, 0,
DTUSX, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 0,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET };
static const struct wacom_features wacom_features_0x336 =
{ "Wacom DTU1141", 23672, 13403, 1023, 0,
DTUS, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET };
static const struct wacom_features wacom_features_0x57 =
{ "Wacom DTK2241", 95840, 54260, 2047, 63,
DTK, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 6,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0x59 = /* Pen */
{ "Wacom DTH2242", 95840, 54260, 2047, 63,
DTK, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 6,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5D };
static const struct wacom_features wacom_features_0x5D = /* Touch */
{ "Wacom DTH2242", .type = WACOM_24HDT,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x59, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0xCC =
{ "Wacom Cintiq 21UX2", 87200, 65600, 2047, 63,
WACOM_21UX2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 18,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0xFA =
{ "Wacom Cintiq 22HD", 95840, 54260, 2047, 63,
WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 18,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET };
static const struct wacom_features wacom_features_0x5B =
{ "Wacom Cintiq 22HDT", 95840, 54260, 2047, 63,
WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 18,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5e };
static const struct wacom_features wacom_features_0x5E =
{ "Wacom Cintiq 22HDT", .type = WACOM_24HDT,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5b, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x90 =
{ "Wacom ISDv4 90", 26202, 16325, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; /* Pen-only */
static const struct wacom_features wacom_features_0x93 =
{ "Wacom ISDv4 93", 26202, 16325, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 1 };
static const struct wacom_features wacom_features_0x97 =
{ "Wacom ISDv4 97", 26202, 16325, 511, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; /* Pen-only */
static const struct wacom_features wacom_features_0x9A =
{ "Wacom ISDv4 9A", 26202, 16325, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 1 };
static const struct wacom_features wacom_features_0x9F =
{ "Wacom ISDv4 9F", 26202, 16325, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 1 };
static const struct wacom_features wacom_features_0xE2 =
{ "Wacom ISDv4 E2", 26202, 16325, 255, 0,
TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xE3 =
{ "Wacom ISDv4 E3", 26202, 16325, 255, 0,
TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xE5 =
{ "Wacom ISDv4 E5", 26202, 16325, 255, 0,
MTSCREEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xE6 =
{ "Wacom ISDv4 E6", 27760, 15694, 255, 0,
TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xEC =
{ "Wacom ISDv4 EC", 25710, 14500, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; /* Pen-only */
static const struct wacom_features wacom_features_0xED =
{ "Wacom ISDv4 ED", 26202, 16325, 255, 0,
TABLETPCE, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 1 };
static const struct wacom_features wacom_features_0xEF =
{ "Wacom ISDv4 EF", 26202, 16325, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; /* Pen-only */
static const struct wacom_features wacom_features_0x100 =
{ "Wacom ISDv4 100", 26202, 16325, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x101 =
{ "Wacom ISDv4 101", 26202, 16325, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x10D =
{ "Wacom ISDv4 10D", 26202, 16325, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x10E =
{ "Wacom ISDv4 10E", 27760, 15694, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x10F =
{ "Wacom ISDv4 10F", 27760, 15694, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x116 =
{ "Wacom ISDv4 116", 26202, 16325, 255, 0,
TABLETPCE, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 1 };
static const struct wacom_features wacom_features_0x12C =
{ "Wacom ISDv4 12C", 27848, 15752, 2047, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; /* Pen-only */
static const struct wacom_features wacom_features_0x4001 =
{ "Wacom ISDv4 4001", 26202, 16325, 255, 0,
MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x4004 =
{ "Wacom ISDv4 4004", 11060, 6220, 255, 0,
MTTPC_B, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x5000 =
{ "Wacom ISDv4 5000", 27848, 15752, 1023, 0,
MTTPC_B, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x5002 =
{ "Wacom ISDv4 5002", 29576, 16724, 1023, 0,
MTTPC_B, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x47 =
{ "Wacom Intuos2 6x8", 20320, 16240, 1023, 31,
INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x84 =
{ "Wacom Wireless Receiver", .type = WIRELESS, .touch_max = 16 };
static const struct wacom_features wacom_features_0xD0 =
{ "Wacom Bamboo 2FG", 14720, 9200, 1023, 31,
BAMBOO_TOUCH, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD1 =
{ "Wacom Bamboo 2FG 4x5", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD2 =
{ "Wacom Bamboo Craft", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD3 =
{ "Wacom Bamboo 2FG 6x8", 21648, 13700, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD4 =
{ "Wacom Bamboo Pen", 14720, 9200, 1023, 31,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xD5 =
{ "Wacom Bamboo Pen 6x8", 21648, 13700, 1023, 31,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xD6 =
{ "Wacom BambooPT 2FG 4x5", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD7 =
{ "Wacom BambooPT 2FG Small", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xD8 =
{ "Wacom Bamboo Comic 2FG", 21648, 13700, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xDA =
{ "Wacom Bamboo 2FG 4x5 SE", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xDB =
{ "Wacom Bamboo 2FG 6x8 SE", 21648, 13700, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 2 };
static const struct wacom_features wacom_features_0xDD =
{ "Wacom Bamboo Connect", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0xDE =
{ "Wacom Bamboo 16FG 4x5", 14720, 9200, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16 };
static const struct wacom_features wacom_features_0xDF =
{ "Wacom Bamboo 16FG 6x8", 21648, 13700, 1023, 31,
BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16 };
static const struct wacom_features wacom_features_0x300 =
{ "Wacom Bamboo One S", 14720, 9225, 1023, 31,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x301 =
{ "Wacom Bamboo One M", 21648, 13530, 1023, 31,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x302 =
{ "Wacom Intuos PT S", 15200, 9500, 1023, 31,
INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x303 =
{ "Wacom Intuos PT M", 21600, 13500, 1023, 31,
INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x30E =
{ "Wacom Intuos S", 15200, 9500, 1023, 31,
INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x6004 =
{ "ISD-V4", 12800, 8000, 255, 0,
TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x307 =
{ "Wacom ISDv5 307", 59552, 33848, 2047, 63,
CINTIQ_HYBRID, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x309 };
static const struct wacom_features wacom_features_0x309 =
{ "Wacom ISDv5 309", .type = WACOM_24HDT, /* Touch */
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x0307, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x30A =
{ "Wacom ISDv5 30A", 59552, 33848, 2047, 63,
CINTIQ_HYBRID, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30C };
static const struct wacom_features wacom_features_0x30C =
{ "Wacom ISDv5 30C", .type = WACOM_24HDT, /* Touch */
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30A, .touch_max = 10,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x318 =
{ "Wacom USB Bamboo PAD", 4095, 4095, /* Touch */
.type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
static const struct wacom_features wacom_features_0x319 =
{ "Wacom Wireless Bamboo PAD", 4095, 4095, /* Touch */
.type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
static const struct wacom_features wacom_features_0x325 =
{ "Wacom ISDv5 325", 59552, 33848, 2047, 63,
CINTIQ_COMPANION_2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 11,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
WACOM_CINTIQ_OFFSET, WACOM_CINTIQ_OFFSET,
.oVid = USB_VENDOR_ID_WACOM, .oPid = 0x326 };
static const struct wacom_features wacom_features_0x326 = /* Touch */
{ "Wacom ISDv5 326", .type = HID_GENERIC, .oVid = USB_VENDOR_ID_WACOM,
.oPid = 0x325 };
static const struct wacom_features wacom_features_0x323 =
{ "Wacom Intuos P M", 21600, 13500, 1023, 31,
INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x331 =
{ "Wacom Express Key Remote", .type = REMOTE,
.numbered_buttons = 18, .check_for_hid_type = true,
.hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x33B =
{ "Wacom Intuos S 2", 15200, 9500, 2047, 63,
INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x33C =
{ "Wacom Intuos PT S 2", 15200, 9500, 2047, 63,
INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x33D =
{ "Wacom Intuos P M 2", 21600, 13500, 2047, 63,
INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x33E =
{ "Wacom Intuos PT M 2", 21600, 13500, 2047, 63,
INTUOSHT2, WACOM_INTUOS_RES, WACOM_INTUOS_RES, .touch_max = 16,
.check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
static const struct wacom_features wacom_features_0x343 =
{ "Wacom DTK1651", 34816, 19759, 1023, 0,
DTUS, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET,
WACOM_DTU_OFFSET, WACOM_DTU_OFFSET };
static const struct wacom_features wacom_features_0x360 =
{ "Wacom Intuos Pro M", 44800, 29600, 8191, 63,
INTUOSP2_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 10 };
static const struct wacom_features wacom_features_0x361 =
{ "Wacom Intuos Pro L", 62200, 43200, 8191, 63,
INTUOSP2_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 10 };
static const struct wacom_features wacom_features_0x377 =
{ "Wacom Intuos BT S", 15200, 9500, 4095, 63,
INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
static const struct wacom_features wacom_features_0x379 =
{ "Wacom Intuos BT M", 21600, 13500, 4095, 63,
INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
static const struct wacom_features wacom_features_0x37A =
{ "Wacom One by Wacom S", 15200, 9500, 2047, 63,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x37B =
{ "Wacom One by Wacom M", 21600, 13500, 2047, 63,
BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x393 =
{ "Wacom Intuos Pro S", 31920, 19950, 8191, 63,
INTUOSP2S_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7,
.touch_max = 10 };
static const struct wacom_features wacom_features_0x3c6 =
{ "Wacom Intuos BT S", 15200, 9500, 4095, 63,
INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
static const struct wacom_features wacom_features_0x3c8 =
{ "Wacom Intuos BT M", 21600, 13500, 4095, 63,
INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
static const struct wacom_features wacom_features_0x3dd =
{ "Wacom Intuos Pro S", 31920, 19950, 8191, 63,
INTUOSP2S_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7,
.touch_max = 10 };
static const struct wacom_features wacom_features_HID_ANY_ID =
{ "Wacom HID", .type = HID_GENERIC, .oVid = HID_ANY_ID, .oPid = HID_ANY_ID };
static const struct wacom_features wacom_features_0x94 =
{ "Wacom Bootloader", .type = BOOTLOADER };
#define USB_DEVICE_WACOM(prod) \
HID_DEVICE(BUS_USB, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
.driver_data = (kernel_ulong_t)&wacom_features_##prod
#define BT_DEVICE_WACOM(prod) \
HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
.driver_data = (kernel_ulong_t)&wacom_features_##prod
#define I2C_DEVICE_WACOM(prod) \
HID_DEVICE(BUS_I2C, HID_GROUP_WACOM, USB_VENDOR_ID_WACOM, prod),\
.driver_data = (kernel_ulong_t)&wacom_features_##prod
#define USB_DEVICE_LENOVO(prod) \
HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, prod), \
.driver_data = (kernel_ulong_t)&wacom_features_##prod
const struct hid_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0x00) },
{ USB_DEVICE_WACOM(0x03) },
{ USB_DEVICE_WACOM(0x10) },
{ USB_DEVICE_WACOM(0x11) },
{ USB_DEVICE_WACOM(0x12) },
{ USB_DEVICE_WACOM(0x13) },
{ USB_DEVICE_WACOM(0x14) },
{ USB_DEVICE_WACOM(0x15) },
{ USB_DEVICE_WACOM(0x16) },
{ USB_DEVICE_WACOM(0x17) },
{ USB_DEVICE_WACOM(0x18) },
{ USB_DEVICE_WACOM(0x19) },
{ USB_DEVICE_WACOM(0x20) },
{ USB_DEVICE_WACOM(0x21) },
{ USB_DEVICE_WACOM(0x22) },
{ USB_DEVICE_WACOM(0x23) },
{ USB_DEVICE_WACOM(0x24) },
{ USB_DEVICE_WACOM(0x26) },
{ USB_DEVICE_WACOM(0x27) },
{ USB_DEVICE_WACOM(0x28) },
{ USB_DEVICE_WACOM(0x29) },
{ USB_DEVICE_WACOM(0x2A) },
{ USB_DEVICE_WACOM(0x30) },
{ USB_DEVICE_WACOM(0x31) },
{ USB_DEVICE_WACOM(0x32) },
{ USB_DEVICE_WACOM(0x33) },
{ USB_DEVICE_WACOM(0x34) },
{ USB_DEVICE_WACOM(0x35) },
{ USB_DEVICE_WACOM(0x37) },
{ USB_DEVICE_WACOM(0x38) },
{ USB_DEVICE_WACOM(0x39) },
{ USB_DEVICE_WACOM(0x3F) },
{ USB_DEVICE_WACOM(0x41) },
{ USB_DEVICE_WACOM(0x42) },
{ USB_DEVICE_WACOM(0x43) },
{ USB_DEVICE_WACOM(0x44) },
{ USB_DEVICE_WACOM(0x45) },
{ USB_DEVICE_WACOM(0x47) },
{ USB_DEVICE_WACOM(0x57) },
{ USB_DEVICE_WACOM(0x59) },
{ USB_DEVICE_WACOM(0x5B) },
{ USB_DEVICE_WACOM(0x5D) },
{ USB_DEVICE_WACOM(0x5E) },
{ USB_DEVICE_WACOM(0x60) },
{ USB_DEVICE_WACOM(0x61) },
{ USB_DEVICE_WACOM(0x62) },
{ USB_DEVICE_WACOM(0x63) },
{ USB_DEVICE_WACOM(0x64) },
{ USB_DEVICE_WACOM(0x65) },
{ USB_DEVICE_WACOM(0x69) },
{ USB_DEVICE_WACOM(0x6A) },
{ USB_DEVICE_WACOM(0x6B) },
{ BT_DEVICE_WACOM(0x81) },
{ USB_DEVICE_WACOM(0x84) },
{ USB_DEVICE_WACOM(0x90) },
{ USB_DEVICE_WACOM(0x93) },
{ USB_DEVICE_WACOM(0x94) },
{ USB_DEVICE_WACOM(0x97) },
{ USB_DEVICE_WACOM(0x9A) },
{ USB_DEVICE_WACOM(0x9F) },
{ USB_DEVICE_WACOM(0xB0) },
{ USB_DEVICE_WACOM(0xB1) },
{ USB_DEVICE_WACOM(0xB2) },
{ USB_DEVICE_WACOM(0xB3) },
{ USB_DEVICE_WACOM(0xB4) },
{ USB_DEVICE_WACOM(0xB5) },
{ USB_DEVICE_WACOM(0xB7) },
{ USB_DEVICE_WACOM(0xB8) },
{ USB_DEVICE_WACOM(0xB9) },
{ USB_DEVICE_WACOM(0xBA) },
{ USB_DEVICE_WACOM(0xBB) },
{ USB_DEVICE_WACOM(0xBC) },
{ BT_DEVICE_WACOM(0xBD) },
{ USB_DEVICE_WACOM(0xC0) },
{ USB_DEVICE_WACOM(0xC2) },
{ USB_DEVICE_WACOM(0xC4) },
{ USB_DEVICE_WACOM(0xC5) },
{ USB_DEVICE_WACOM(0xC6) },
{ USB_DEVICE_WACOM(0xC7) },
{ USB_DEVICE_WACOM(0xCC) },
{ USB_DEVICE_WACOM(0xCE) },
{ USB_DEVICE_WACOM(0xD0) },
{ USB_DEVICE_WACOM(0xD1) },
{ USB_DEVICE_WACOM(0xD2) },
{ USB_DEVICE_WACOM(0xD3) },
{ USB_DEVICE_WACOM(0xD4) },
{ USB_DEVICE_WACOM(0xD5) },
{ USB_DEVICE_WACOM(0xD6) },
{ USB_DEVICE_WACOM(0xD7) },
{ USB_DEVICE_WACOM(0xD8) },
{ USB_DEVICE_WACOM(0xDA) },
{ USB_DEVICE_WACOM(0xDB) },
{ USB_DEVICE_WACOM(0xDD) },
{ USB_DEVICE_WACOM(0xDE) },
{ USB_DEVICE_WACOM(0xDF) },
{ USB_DEVICE_WACOM(0xE2) },
{ USB_DEVICE_WACOM(0xE3) },
{ USB_DEVICE_WACOM(0xE5) },
{ USB_DEVICE_WACOM(0xE6) },
{ USB_DEVICE_WACOM(0xEC) },
{ USB_DEVICE_WACOM(0xED) },
{ USB_DEVICE_WACOM(0xEF) },
{ USB_DEVICE_WACOM(0xF0) },
{ USB_DEVICE_WACOM(0xF4) },
{ USB_DEVICE_WACOM(0xF6) },
{ USB_DEVICE_WACOM(0xF8) },
{ USB_DEVICE_WACOM(0xFA) },
{ USB_DEVICE_WACOM(0xFB) },
{ USB_DEVICE_WACOM(0x100) },
{ USB_DEVICE_WACOM(0x101) },
{ USB_DEVICE_WACOM(0x10D) },
{ USB_DEVICE_WACOM(0x10E) },
{ USB_DEVICE_WACOM(0x10F) },
{ USB_DEVICE_WACOM(0x116) },
{ USB_DEVICE_WACOM(0x12C) },
{ USB_DEVICE_WACOM(0x300) },
{ USB_DEVICE_WACOM(0x301) },
{ USB_DEVICE_WACOM(0x302) },
{ USB_DEVICE_WACOM(0x303) },
{ USB_DEVICE_WACOM(0x304) },
{ USB_DEVICE_WACOM(0x307) },
{ USB_DEVICE_WACOM(0x309) },
{ USB_DEVICE_WACOM(0x30A) },
{ USB_DEVICE_WACOM(0x30C) },
{ USB_DEVICE_WACOM(0x30E) },
{ USB_DEVICE_WACOM(0x314) },
{ USB_DEVICE_WACOM(0x315) },
{ USB_DEVICE_WACOM(0x317) },
{ USB_DEVICE_WACOM(0x318) },
{ USB_DEVICE_WACOM(0x319) },
{ USB_DEVICE_WACOM(0x323) },
{ USB_DEVICE_WACOM(0x325) },
{ USB_DEVICE_WACOM(0x326) },
{ USB_DEVICE_WACOM(0x32A) },
{ USB_DEVICE_WACOM(0x32B) },
{ USB_DEVICE_WACOM(0x32C) },
{ USB_DEVICE_WACOM(0x32F) },
{ USB_DEVICE_WACOM(0x331) },
{ USB_DEVICE_WACOM(0x333) },
{ USB_DEVICE_WACOM(0x335) },
{ USB_DEVICE_WACOM(0x336) },
{ USB_DEVICE_WACOM(0x33B) },
{ USB_DEVICE_WACOM(0x33C) },
{ USB_DEVICE_WACOM(0x33D) },
{ USB_DEVICE_WACOM(0x33E) },
{ USB_DEVICE_WACOM(0x343) },
{ BT_DEVICE_WACOM(0x360) },
{ BT_DEVICE_WACOM(0x361) },
{ BT_DEVICE_WACOM(0x377) },
{ BT_DEVICE_WACOM(0x379) },
{ USB_DEVICE_WACOM(0x37A) },
{ USB_DEVICE_WACOM(0x37B) },
{ BT_DEVICE_WACOM(0x393) },
{ BT_DEVICE_WACOM(0x3c6) },
{ BT_DEVICE_WACOM(0x3c8) },
{ BT_DEVICE_WACOM(0x3dd) },
{ USB_DEVICE_WACOM(0x4001) },
{ USB_DEVICE_WACOM(0x4004) },
{ USB_DEVICE_WACOM(0x5000) },
{ USB_DEVICE_WACOM(0x5002) },
{ USB_DEVICE_LENOVO(0x6004) },
{ USB_DEVICE_WACOM(HID_ANY_ID) },
{ I2C_DEVICE_WACOM(HID_ANY_ID) },
{ BT_DEVICE_WACOM(HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, wacom_ids);
| linux-master | drivers/hid/wacom_wac.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB
* adapter for pre-USB Sun keyboards
*
* Copyright (c) 2011 Google, Inc.
*
* Based on HID apple 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 <[email protected]>
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
MODULE_AUTHOR("Jonathan Klabunde Tomer <[email protected]>");
MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter");
/*
* NTI Sun keyboard adapter has wrong logical maximum in report descriptor
*/
static __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n");
rdesc[53] = rdesc[59] = 0xe7;
}
return rdesc;
}
static const struct hid_device_id nti_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) },
{ }
};
MODULE_DEVICE_TABLE(hid, nti_devices);
static struct hid_driver nti_driver = {
.name = "nti",
.id_table = nti_devices,
.report_fixup = nti_usbsun_report_fixup
};
module_hid_driver(nti_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-nti.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Roccat common functions for device specific drivers
*
* Copyright (c) 2011 Stefan Achatz <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/slab.h>
#include <linux/module.h>
#include "hid-roccat-common.h"
static inline uint16_t roccat_common2_feature_report(uint8_t report_id)
{
return 0x300 | report_id;
}
int roccat_common2_receive(struct usb_device *usb_dev, uint report_id,
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,
roccat_common2_feature_report(report_id),
0, buf, size, USB_CTRL_SET_TIMEOUT);
memcpy(data, buf, size);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
EXPORT_SYMBOL_GPL(roccat_common2_receive);
int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
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,
roccat_common2_feature_report(report_id),
0, buf, size, USB_CTRL_SET_TIMEOUT);
kfree(buf);
return ((len < 0) ? len : ((len != size) ? -EIO : 0));
}
EXPORT_SYMBOL_GPL(roccat_common2_send);
enum roccat_common2_control_states {
ROCCAT_COMMON_CONTROL_STATUS_CRITICAL = 0,
ROCCAT_COMMON_CONTROL_STATUS_OK = 1,
ROCCAT_COMMON_CONTROL_STATUS_INVALID = 2,
ROCCAT_COMMON_CONTROL_STATUS_BUSY = 3,
ROCCAT_COMMON_CONTROL_STATUS_CRITICAL_NEW = 4,
};
static int roccat_common2_receive_control_status(struct usb_device *usb_dev)
{
int retval;
struct roccat_common2_control control;
do {
msleep(50);
retval = roccat_common2_receive(usb_dev,
ROCCAT_COMMON_COMMAND_CONTROL,
&control, sizeof(struct roccat_common2_control));
if (retval)
return retval;
switch (control.value) {
case ROCCAT_COMMON_CONTROL_STATUS_OK:
return 0;
case ROCCAT_COMMON_CONTROL_STATUS_BUSY:
msleep(500);
continue;
case ROCCAT_COMMON_CONTROL_STATUS_INVALID:
case ROCCAT_COMMON_CONTROL_STATUS_CRITICAL:
case ROCCAT_COMMON_CONTROL_STATUS_CRITICAL_NEW:
return -EINVAL;
default:
dev_err(&usb_dev->dev,
"roccat_common2_receive_control_status: "
"unknown response value 0x%x\n",
control.value);
return -EINVAL;
}
} while (1);
}
int roccat_common2_send_with_status(struct usb_device *usb_dev,
uint command, void const *buf, uint size)
{
int retval;
retval = roccat_common2_send(usb_dev, command, buf, size);
if (retval)
return retval;
msleep(100);
return roccat_common2_receive_control_status(usb_dev);
}
EXPORT_SYMBOL_GPL(roccat_common2_send_with_status);
int roccat_common2_device_init_struct(struct usb_device *usb_dev,
struct roccat_common2_device *dev)
{
mutex_init(&dev->lock);
return 0;
}
EXPORT_SYMBOL_GPL(roccat_common2_device_init_struct);
ssize_t roccat_common2_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 roccat_common2_device *roccat_dev = 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(&roccat_dev->lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&roccat_dev->lock);
return retval ? retval : real_size;
}
EXPORT_SYMBOL_GPL(roccat_common2_sysfs_read);
ssize_t roccat_common2_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 roccat_common2_device *roccat_dev = 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(&roccat_dev->lock);
retval = roccat_common2_send_with_status(usb_dev, command, buf, real_size);
mutex_unlock(&roccat_dev->lock);
return retval ? retval : real_size;
}
EXPORT_SYMBOL_GPL(roccat_common2_sysfs_write);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat common driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/hid/hid-roccat-common.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* HID driver for primax and similar keyboards with in-band modifiers
*
* Copyright 2011 Google Inc. All Rights Reserved
*
* Author:
* Terry Lambert <[email protected]>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
static int px_raw_event(struct hid_device *hid, struct hid_report *report,
u8 *data, int size)
{
int idx = size;
switch (report->id) {
case 0: /* keyboard input */
/*
* Convert in-band modifier key values into out of band
* modifier bits and pull the key strokes from the report.
* Thus a report data set which looked like:
*
* [00][00][E0][30][00][00][00][00]
* (no modifier bits + "Left Shift" key + "1" key)
*
* Would be converted to:
*
* [01][00][00][30][00][00][00][00]
* (Left Shift modifier bit + "1" key)
*
* As long as it's in the size range, the upper level
* drivers don't particularly care if there are in-band
* 0-valued keys, so they don't stop parsing.
*/
while (--idx > 1) {
if (data[idx] < 0xE0 || data[idx] > 0xE7)
continue;
data[0] |= (1 << (data[idx] - 0xE0));
data[idx] = 0;
}
hid_report_raw_event(hid, HID_INPUT_REPORT, data, size, 0);
return 1;
default: /* unknown report */
/* Unknown report type; pass upstream */
hid_info(hid, "unknown report type %d\n", report->id);
break;
}
return 0;
}
static const struct hid_device_id px_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
{ }
};
MODULE_DEVICE_TABLE(hid, px_devices);
static struct hid_driver px_driver = {
.name = "primax",
.id_table = px_devices,
.raw_event = px_raw_event,
};
module_hid_driver(px_driver);
MODULE_AUTHOR("Terry Lambert <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-primax.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*
* HID driver for NVIDIA SHIELD peripherals.
*/
#include <linux/hid.h>
#include <linux/idr.h>
#include <linux/input-event-codes.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>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include "hid-ids.h"
#define NOT_INIT_STR "NOT INITIALIZED"
#define android_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
enum {
HID_USAGE_ANDROID_PLAYPAUSE_BTN = 0xcd, /* Double-tap volume slider */
HID_USAGE_ANDROID_VOLUMEUP_BTN = 0xe9,
HID_USAGE_ANDROID_VOLUMEDOWN_BTN = 0xea,
HID_USAGE_ANDROID_SEARCH_BTN = 0x221, /* NVIDIA btn on Thunderstrike */
HID_USAGE_ANDROID_HOME_BTN = 0x223,
HID_USAGE_ANDROID_BACK_BTN = 0x224,
};
enum {
SHIELD_FW_VERSION_INITIALIZED = 0,
SHIELD_BOARD_INFO_INITIALIZED,
SHIELD_BATTERY_STATS_INITIALIZED,
SHIELD_CHARGER_STATE_INITIALIZED,
};
enum {
THUNDERSTRIKE_FW_VERSION_UPDATE = 0,
THUNDERSTRIKE_BOARD_INFO_UPDATE,
THUNDERSTRIKE_HAPTICS_UPDATE,
THUNDERSTRIKE_LED_UPDATE,
THUNDERSTRIKE_POWER_SUPPLY_STATS_UPDATE,
};
enum {
THUNDERSTRIKE_HOSTCMD_REPORT_SIZE = 33,
THUNDERSTRIKE_HOSTCMD_REQ_REPORT_ID = 0x4,
THUNDERSTRIKE_HOSTCMD_RESP_REPORT_ID = 0x3,
};
enum {
THUNDERSTRIKE_HOSTCMD_ID_FW_VERSION = 1,
THUNDERSTRIKE_HOSTCMD_ID_LED = 6,
THUNDERSTRIKE_HOSTCMD_ID_BATTERY,
THUNDERSTRIKE_HOSTCMD_ID_BOARD_INFO = 16,
THUNDERSTRIKE_HOSTCMD_ID_USB_INIT = 53,
THUNDERSTRIKE_HOSTCMD_ID_HAPTICS = 57,
THUNDERSTRIKE_HOSTCMD_ID_CHARGER,
};
struct power_supply_dev {
struct power_supply *psy;
struct power_supply_desc desc;
};
struct thunderstrike_psy_prop_values {
int voltage_min;
int voltage_now;
int voltage_avg;
int voltage_boot;
int capacity;
int status;
int charge_type;
int temp;
};
static const enum power_supply_property thunderstrike_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_CHARGE_TYPE,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_VOLTAGE_MIN,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
POWER_SUPPLY_PROP_VOLTAGE_BOOT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TEMP_MIN,
POWER_SUPPLY_PROP_TEMP_MAX,
POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
};
enum thunderstrike_led_state {
THUNDERSTRIKE_LED_OFF = 1,
THUNDERSTRIKE_LED_ON = 8,
} __packed;
static_assert(sizeof(enum thunderstrike_led_state) == 1);
struct thunderstrike_hostcmd_battery {
__le16 voltage_avg;
u8 reserved_at_10;
__le16 thermistor;
__le16 voltage_min;
__le16 voltage_boot;
__le16 voltage_now;
u8 capacity;
} __packed;
enum thunderstrike_charger_type {
THUNDERSTRIKE_CHARGER_TYPE_NONE = 0,
THUNDERSTRIKE_CHARGER_TYPE_TRICKLE,
THUNDERSTRIKE_CHARGER_TYPE_NORMAL,
} __packed;
static_assert(sizeof(enum thunderstrike_charger_type) == 1);
enum thunderstrike_charger_state {
THUNDERSTRIKE_CHARGER_STATE_UNKNOWN = 0,
THUNDERSTRIKE_CHARGER_STATE_DISABLED,
THUNDERSTRIKE_CHARGER_STATE_CHARGING,
THUNDERSTRIKE_CHARGER_STATE_FULL,
THUNDERSTRIKE_CHARGER_STATE_FAILED = 8,
} __packed;
static_assert(sizeof(enum thunderstrike_charger_state) == 1);
struct thunderstrike_hostcmd_charger {
u8 connected;
enum thunderstrike_charger_type type;
enum thunderstrike_charger_state state;
} __packed;
struct thunderstrike_hostcmd_board_info {
__le16 revision;
__le16 serial[7];
} __packed;
struct thunderstrike_hostcmd_haptics {
u8 motor_left;
u8 motor_right;
} __packed;
struct thunderstrike_hostcmd_resp_report {
u8 report_id; /* THUNDERSTRIKE_HOSTCMD_RESP_REPORT_ID */
u8 cmd_id;
u8 reserved_at_10;
union {
struct thunderstrike_hostcmd_board_info board_info;
struct thunderstrike_hostcmd_haptics motors;
__le16 fw_version;
enum thunderstrike_led_state led_state;
struct thunderstrike_hostcmd_battery battery;
struct thunderstrike_hostcmd_charger charger;
u8 payload[30];
} __packed;
} __packed;
static_assert(sizeof(struct thunderstrike_hostcmd_resp_report) ==
THUNDERSTRIKE_HOSTCMD_REPORT_SIZE);
struct thunderstrike_hostcmd_req_report {
u8 report_id; /* THUNDERSTRIKE_HOSTCMD_REQ_REPORT_ID */
u8 cmd_id;
u8 reserved_at_10;
union {
struct __packed {
u8 update;
enum thunderstrike_led_state state;
} led;
struct __packed {
u8 update;
struct thunderstrike_hostcmd_haptics motors;
} haptics;
} __packed;
u8 reserved_at_30[27];
} __packed;
static_assert(sizeof(struct thunderstrike_hostcmd_req_report) ==
THUNDERSTRIKE_HOSTCMD_REPORT_SIZE);
/* Common struct for shield accessories. */
struct shield_device {
struct hid_device *hdev;
struct power_supply_dev battery_dev;
unsigned long initialized_flags;
const char *codename;
u16 fw_version;
struct {
u16 revision;
char serial_number[15];
} board_info;
};
/*
* Non-trivial to uniquely identify Thunderstrike controllers at initialization
* time. Use an ID allocator to help with this.
*/
static DEFINE_IDA(thunderstrike_ida);
struct thunderstrike {
struct shield_device base;
int id;
/* Sub-devices */
struct input_dev *haptics_dev;
struct led_classdev led_dev;
/* Resources */
void *req_report_dmabuf;
unsigned long update_flags;
struct thunderstrike_hostcmd_haptics haptics_val;
spinlock_t haptics_update_lock;
u8 led_state : 1;
enum thunderstrike_led_state led_value;
struct thunderstrike_psy_prop_values psy_stats;
spinlock_t psy_stats_lock;
struct timer_list psy_stats_timer;
struct work_struct hostcmd_req_work;
};
static inline void thunderstrike_hostcmd_req_report_init(
struct thunderstrike_hostcmd_req_report *report, u8 cmd_id)
{
memset(report, 0, sizeof(*report));
report->report_id = THUNDERSTRIKE_HOSTCMD_REQ_REPORT_ID;
report->cmd_id = cmd_id;
}
static inline void shield_strrev(char *dest, size_t len, u16 rev)
{
dest[0] = ('A' - 1) + (rev >> 8);
snprintf(&dest[1], len - 1, "%02X", 0xff & rev);
}
static struct input_dev *shield_allocate_input_dev(struct hid_device *hdev,
const char *name_suffix)
{
struct input_dev *idev;
idev = input_allocate_device();
if (!idev)
goto err_device;
idev->id.bustype = hdev->bus;
idev->id.vendor = hdev->vendor;
idev->id.product = hdev->product;
idev->id.version = hdev->version;
idev->uniq = hdev->uniq;
idev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s %s", hdev->name,
name_suffix);
if (!idev->name)
goto err_name;
input_set_drvdata(idev, hdev);
return idev;
err_name:
input_free_device(idev);
err_device:
return ERR_PTR(-ENOMEM);
}
static struct input_dev *shield_haptics_create(
struct shield_device *dev,
int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
{
struct input_dev *haptics;
int ret;
if (!IS_ENABLED(CONFIG_NVIDIA_SHIELD_FF))
return NULL;
haptics = shield_allocate_input_dev(dev->hdev, "Haptics");
if (IS_ERR(haptics))
return haptics;
input_set_capability(haptics, EV_FF, FF_RUMBLE);
input_ff_create_memless(haptics, NULL, play_effect);
ret = input_register_device(haptics);
if (ret)
goto err;
return haptics;
err:
input_free_device(haptics);
return ERR_PTR(ret);
}
static inline void thunderstrike_send_hostcmd_request(struct thunderstrike *ts)
{
struct thunderstrike_hostcmd_req_report *report = ts->req_report_dmabuf;
struct shield_device *shield_dev = &ts->base;
int ret;
ret = hid_hw_raw_request(shield_dev->hdev, report->report_id,
ts->req_report_dmabuf,
THUNDERSTRIKE_HOSTCMD_REPORT_SIZE,
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
if (ret < 0) {
hid_err(shield_dev->hdev,
"Failed to output Thunderstrike HOSTCMD request HID report due to %pe\n",
ERR_PTR(ret));
}
}
static void thunderstrike_hostcmd_req_work_handler(struct work_struct *work)
{
struct thunderstrike *ts =
container_of(work, struct thunderstrike, hostcmd_req_work);
struct thunderstrike_hostcmd_req_report *report;
unsigned long flags;
report = ts->req_report_dmabuf;
if (test_and_clear_bit(THUNDERSTRIKE_FW_VERSION_UPDATE, &ts->update_flags)) {
thunderstrike_hostcmd_req_report_init(
report, THUNDERSTRIKE_HOSTCMD_ID_FW_VERSION);
thunderstrike_send_hostcmd_request(ts);
}
if (test_and_clear_bit(THUNDERSTRIKE_LED_UPDATE, &ts->update_flags)) {
thunderstrike_hostcmd_req_report_init(report, THUNDERSTRIKE_HOSTCMD_ID_LED);
report->led.update = 1;
report->led.state = ts->led_value;
thunderstrike_send_hostcmd_request(ts);
}
if (test_and_clear_bit(THUNDERSTRIKE_POWER_SUPPLY_STATS_UPDATE, &ts->update_flags)) {
thunderstrike_hostcmd_req_report_init(
report, THUNDERSTRIKE_HOSTCMD_ID_BATTERY);
thunderstrike_send_hostcmd_request(ts);
thunderstrike_hostcmd_req_report_init(
report, THUNDERSTRIKE_HOSTCMD_ID_CHARGER);
thunderstrike_send_hostcmd_request(ts);
}
if (test_and_clear_bit(THUNDERSTRIKE_BOARD_INFO_UPDATE, &ts->update_flags)) {
thunderstrike_hostcmd_req_report_init(
report, THUNDERSTRIKE_HOSTCMD_ID_BOARD_INFO);
thunderstrike_send_hostcmd_request(ts);
}
if (test_and_clear_bit(THUNDERSTRIKE_HAPTICS_UPDATE, &ts->update_flags)) {
thunderstrike_hostcmd_req_report_init(
report, THUNDERSTRIKE_HOSTCMD_ID_HAPTICS);
report->haptics.update = 1;
spin_lock_irqsave(&ts->haptics_update_lock, flags);
report->haptics.motors = ts->haptics_val;
spin_unlock_irqrestore(&ts->haptics_update_lock, flags);
thunderstrike_send_hostcmd_request(ts);
}
}
static inline void thunderstrike_request_firmware_version(struct thunderstrike *ts)
{
set_bit(THUNDERSTRIKE_FW_VERSION_UPDATE, &ts->update_flags);
schedule_work(&ts->hostcmd_req_work);
}
static inline void thunderstrike_request_board_info(struct thunderstrike *ts)
{
set_bit(THUNDERSTRIKE_BOARD_INFO_UPDATE, &ts->update_flags);
schedule_work(&ts->hostcmd_req_work);
}
static inline int
thunderstrike_update_haptics(struct thunderstrike *ts,
struct thunderstrike_hostcmd_haptics *motors)
{
unsigned long flags;
spin_lock_irqsave(&ts->haptics_update_lock, flags);
ts->haptics_val = *motors;
spin_unlock_irqrestore(&ts->haptics_update_lock, flags);
set_bit(THUNDERSTRIKE_HAPTICS_UPDATE, &ts->update_flags);
schedule_work(&ts->hostcmd_req_work);
return 0;
}
static int thunderstrike_play_effect(struct input_dev *idev, void *data,
struct ff_effect *effect)
{
struct hid_device *hdev = input_get_drvdata(idev);
struct thunderstrike_hostcmd_haptics motors;
struct shield_device *shield_dev;
struct thunderstrike *ts;
if (effect->type != FF_RUMBLE)
return 0;
shield_dev = hid_get_drvdata(hdev);
ts = container_of(shield_dev, struct thunderstrike, base);
/* Thunderstrike motor values range from 0 to 32 inclusively */
motors.motor_left = effect->u.rumble.strong_magnitude / 2047;
motors.motor_right = effect->u.rumble.weak_magnitude / 2047;
hid_dbg(hdev, "Thunderstrike FF_RUMBLE request, left: %u right: %u\n",
motors.motor_left, motors.motor_right);
return thunderstrike_update_haptics(ts, &motors);
}
static enum led_brightness
thunderstrike_led_get_brightness(struct led_classdev *led)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct shield_device *shield_dev = hid_get_drvdata(hdev);
struct thunderstrike *ts;
ts = container_of(shield_dev, struct thunderstrike, base);
return ts->led_state;
}
static void thunderstrike_led_set_brightness(struct led_classdev *led,
enum led_brightness value)
{
struct hid_device *hdev = to_hid_device(led->dev->parent);
struct shield_device *shield_dev = hid_get_drvdata(hdev);
struct thunderstrike *ts;
ts = container_of(shield_dev, struct thunderstrike, base);
switch (value) {
case LED_OFF:
ts->led_value = THUNDERSTRIKE_LED_OFF;
break;
default:
ts->led_value = THUNDERSTRIKE_LED_ON;
break;
}
set_bit(THUNDERSTRIKE_LED_UPDATE, &ts->update_flags);
schedule_work(&ts->hostcmd_req_work);
}
static int thunderstrike_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct shield_device *shield_dev = power_supply_get_drvdata(psy);
struct thunderstrike_psy_prop_values prop_values;
struct thunderstrike *ts;
int ret = 0;
ts = container_of(shield_dev, struct thunderstrike, base);
spin_lock(&ts->psy_stats_lock);
prop_values = ts->psy_stats;
spin_unlock(&ts->psy_stats_lock);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = prop_values.status;
break;
case POWER_SUPPLY_PROP_CHARGE_TYPE:
val->intval = prop_values.charge_type;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN:
val->intval = prop_values.voltage_min;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
val->intval = 2900000; /* 2.9 V */
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = 2200000; /* 2.2 V */
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = prop_values.voltage_now;
break;
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
val->intval = prop_values.voltage_avg;
break;
case POWER_SUPPLY_PROP_VOLTAGE_BOOT:
val->intval = prop_values.voltage_boot;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = prop_values.capacity;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = prop_values.temp;
break;
case POWER_SUPPLY_PROP_TEMP_MIN:
val->intval = 0; /* 0 C */
break;
case POWER_SUPPLY_PROP_TEMP_MAX:
val->intval = 400; /* 40 C */
break;
case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
val->intval = 15; /* 1.5 C */
break;
case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
val->intval = 380; /* 38 C */
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static inline void thunderstrike_request_psy_stats(struct thunderstrike *ts)
{
set_bit(THUNDERSTRIKE_POWER_SUPPLY_STATS_UPDATE, &ts->update_flags);
schedule_work(&ts->hostcmd_req_work);
}
static void thunderstrike_psy_stats_timer_handler(struct timer_list *timer)
{
struct thunderstrike *ts =
container_of(timer, struct thunderstrike, psy_stats_timer);
thunderstrike_request_psy_stats(ts);
/* Query battery statistics from device every five minutes */
mod_timer(timer, jiffies + 300 * HZ);
}
static void
thunderstrike_parse_fw_version_payload(struct shield_device *shield_dev,
__le16 fw_version)
{
shield_dev->fw_version = le16_to_cpu(fw_version);
set_bit(SHIELD_FW_VERSION_INITIALIZED, &shield_dev->initialized_flags);
hid_dbg(shield_dev->hdev, "Thunderstrike firmware version 0x%04X\n",
shield_dev->fw_version);
}
static void
thunderstrike_parse_board_info_payload(struct shield_device *shield_dev,
struct thunderstrike_hostcmd_board_info *board_info)
{
char board_revision_str[4];
int i;
shield_dev->board_info.revision = le16_to_cpu(board_info->revision);
for (i = 0; i < 7; ++i) {
u16 val = le16_to_cpu(board_info->serial[i]);
shield_dev->board_info.serial_number[2 * i] = val & 0xFF;
shield_dev->board_info.serial_number[2 * i + 1] = val >> 8;
}
shield_dev->board_info.serial_number[14] = '\0';
set_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags);
shield_strrev(board_revision_str, 4, shield_dev->board_info.revision);
hid_dbg(shield_dev->hdev,
"Thunderstrike BOARD_REVISION_%s (0x%04X) S/N: %s\n",
board_revision_str, shield_dev->board_info.revision,
shield_dev->board_info.serial_number);
}
static inline void
thunderstrike_parse_haptics_payload(struct shield_device *shield_dev,
struct thunderstrike_hostcmd_haptics *haptics)
{
hid_dbg(shield_dev->hdev,
"Thunderstrike haptics HOSTCMD response, left: %u right: %u\n",
haptics->motor_left, haptics->motor_right);
}
static void
thunderstrike_parse_led_payload(struct shield_device *shield_dev,
enum thunderstrike_led_state led_state)
{
struct thunderstrike *ts = container_of(shield_dev, struct thunderstrike, base);
switch (led_state) {
case THUNDERSTRIKE_LED_OFF:
ts->led_state = 0;
break;
case THUNDERSTRIKE_LED_ON:
ts->led_state = 1;
break;
}
hid_dbg(shield_dev->hdev, "Thunderstrike led HOSTCMD response, 0x%02X\n", led_state);
}
static void thunderstrike_parse_battery_payload(
struct shield_device *shield_dev,
struct thunderstrike_hostcmd_battery *battery)
{
struct thunderstrike *ts = container_of(shield_dev, struct thunderstrike, base);
u16 hostcmd_voltage_boot = le16_to_cpu(battery->voltage_boot);
u16 hostcmd_voltage_avg = le16_to_cpu(battery->voltage_avg);
u16 hostcmd_voltage_min = le16_to_cpu(battery->voltage_min);
u16 hostcmd_voltage_now = le16_to_cpu(battery->voltage_now);
u16 hostcmd_thermistor = le16_to_cpu(battery->thermistor);
int voltage_boot, voltage_avg, voltage_min, voltage_now;
struct hid_device *hdev = shield_dev->hdev;
u8 capacity = battery->capacity;
int temp;
/* Convert thunderstrike device values to µV and tenths of degree Celsius */
voltage_boot = hostcmd_voltage_boot * 1000;
voltage_avg = hostcmd_voltage_avg * 1000;
voltage_min = hostcmd_voltage_min * 1000;
voltage_now = hostcmd_voltage_now * 1000;
temp = (1378 - (int)hostcmd_thermistor) * 10 / 19;
/* Copy converted values */
spin_lock(&ts->psy_stats_lock);
ts->psy_stats.voltage_boot = voltage_boot;
ts->psy_stats.voltage_avg = voltage_avg;
ts->psy_stats.voltage_min = voltage_min;
ts->psy_stats.voltage_now = voltage_now;
ts->psy_stats.capacity = capacity;
ts->psy_stats.temp = temp;
spin_unlock(&ts->psy_stats_lock);
set_bit(SHIELD_BATTERY_STATS_INITIALIZED, &shield_dev->initialized_flags);
hid_dbg(hdev,
"Thunderstrike battery HOSTCMD response, voltage_avg: %u voltage_now: %u\n",
hostcmd_voltage_avg, hostcmd_voltage_now);
hid_dbg(hdev,
"Thunderstrike battery HOSTCMD response, voltage_boot: %u voltage_min: %u\n",
hostcmd_voltage_boot, hostcmd_voltage_min);
hid_dbg(hdev,
"Thunderstrike battery HOSTCMD response, thermistor: %u\n",
hostcmd_thermistor);
hid_dbg(hdev,
"Thunderstrike battery HOSTCMD response, capacity: %u%%\n",
capacity);
}
static void thunderstrike_parse_charger_payload(
struct shield_device *shield_dev,
struct thunderstrike_hostcmd_charger *charger)
{
struct thunderstrike *ts = container_of(shield_dev, struct thunderstrike, base);
int charge_type = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
struct hid_device *hdev = shield_dev->hdev;
int status = POWER_SUPPLY_STATUS_UNKNOWN;
switch (charger->type) {
case THUNDERSTRIKE_CHARGER_TYPE_NONE:
charge_type = POWER_SUPPLY_CHARGE_TYPE_NONE;
break;
case THUNDERSTRIKE_CHARGER_TYPE_TRICKLE:
charge_type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
break;
case THUNDERSTRIKE_CHARGER_TYPE_NORMAL:
charge_type = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
break;
default:
hid_warn(hdev, "Unhandled Thunderstrike charger HOSTCMD type, %u\n",
charger->type);
break;
}
switch (charger->state) {
case THUNDERSTRIKE_CHARGER_STATE_UNKNOWN:
status = POWER_SUPPLY_STATUS_UNKNOWN;
break;
case THUNDERSTRIKE_CHARGER_STATE_DISABLED:
/* Indicates charger is disconnected */
break;
case THUNDERSTRIKE_CHARGER_STATE_CHARGING:
status = POWER_SUPPLY_STATUS_CHARGING;
break;
case THUNDERSTRIKE_CHARGER_STATE_FULL:
status = POWER_SUPPLY_STATUS_FULL;
break;
case THUNDERSTRIKE_CHARGER_STATE_FAILED:
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
hid_err(hdev, "Thunderstrike device failed to charge\n");
break;
default:
hid_warn(hdev, "Unhandled Thunderstrike charger HOSTCMD state, %u\n",
charger->state);
break;
}
if (!charger->connected)
status = POWER_SUPPLY_STATUS_DISCHARGING;
spin_lock(&ts->psy_stats_lock);
ts->psy_stats.charge_type = charge_type;
ts->psy_stats.status = status;
spin_unlock(&ts->psy_stats_lock);
set_bit(SHIELD_CHARGER_STATE_INITIALIZED, &shield_dev->initialized_flags);
hid_dbg(hdev,
"Thunderstrike charger HOSTCMD response, connected: %u, type: %u, state: %u\n",
charger->connected, charger->type, charger->state);
}
static inline void thunderstrike_device_init_info(struct shield_device *shield_dev)
{
struct thunderstrike *ts =
container_of(shield_dev, struct thunderstrike, base);
if (!test_bit(SHIELD_FW_VERSION_INITIALIZED, &shield_dev->initialized_flags))
thunderstrike_request_firmware_version(ts);
if (!test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags))
thunderstrike_request_board_info(ts);
if (!test_bit(SHIELD_BATTERY_STATS_INITIALIZED, &shield_dev->initialized_flags) ||
!test_bit(SHIELD_CHARGER_STATE_INITIALIZED, &shield_dev->initialized_flags))
thunderstrike_psy_stats_timer_handler(&ts->psy_stats_timer);
}
static int thunderstrike_parse_report(struct shield_device *shield_dev,
struct hid_report *report, u8 *data,
int size)
{
struct thunderstrike_hostcmd_resp_report *hostcmd_resp_report;
struct hid_device *hdev = shield_dev->hdev;
switch (report->id) {
case THUNDERSTRIKE_HOSTCMD_RESP_REPORT_ID:
if (size != THUNDERSTRIKE_HOSTCMD_REPORT_SIZE) {
hid_err(hdev,
"Encountered Thunderstrike HOSTCMD HID report with unexpected size %d\n",
size);
return -EINVAL;
}
hostcmd_resp_report =
(struct thunderstrike_hostcmd_resp_report *)data;
switch (hostcmd_resp_report->cmd_id) {
case THUNDERSTRIKE_HOSTCMD_ID_FW_VERSION:
thunderstrike_parse_fw_version_payload(
shield_dev, hostcmd_resp_report->fw_version);
break;
case THUNDERSTRIKE_HOSTCMD_ID_LED:
thunderstrike_parse_led_payload(shield_dev, hostcmd_resp_report->led_state);
break;
case THUNDERSTRIKE_HOSTCMD_ID_BATTERY:
thunderstrike_parse_battery_payload(shield_dev,
&hostcmd_resp_report->battery);
break;
case THUNDERSTRIKE_HOSTCMD_ID_BOARD_INFO:
thunderstrike_parse_board_info_payload(
shield_dev, &hostcmd_resp_report->board_info);
break;
case THUNDERSTRIKE_HOSTCMD_ID_HAPTICS:
thunderstrike_parse_haptics_payload(
shield_dev, &hostcmd_resp_report->motors);
break;
case THUNDERSTRIKE_HOSTCMD_ID_USB_INIT:
/* May block HOSTCMD requests till received initially */
thunderstrike_device_init_info(shield_dev);
break;
case THUNDERSTRIKE_HOSTCMD_ID_CHARGER:
/* May block HOSTCMD requests till received initially */
thunderstrike_device_init_info(shield_dev);
thunderstrike_parse_charger_payload(
shield_dev, &hostcmd_resp_report->charger);
break;
default:
hid_warn(hdev,
"Unhandled Thunderstrike HOSTCMD id %d\n",
hostcmd_resp_report->cmd_id);
return -ENOENT;
}
break;
default:
return 0;
}
return 0;
}
static inline int thunderstrike_led_create(struct thunderstrike *ts)
{
struct led_classdev *led = &ts->led_dev;
led->name = devm_kasprintf(&ts->base.hdev->dev, GFP_KERNEL,
"thunderstrike%d:blue:led", ts->id);
led->max_brightness = 1;
led->flags = LED_CORE_SUSPENDRESUME;
led->brightness_get = &thunderstrike_led_get_brightness;
led->brightness_set = &thunderstrike_led_set_brightness;
return led_classdev_register(&ts->base.hdev->dev, led);
}
static inline int thunderstrike_psy_create(struct shield_device *shield_dev)
{
struct thunderstrike *ts = container_of(shield_dev, struct thunderstrike, base);
struct power_supply_config psy_cfg = { .drv_data = shield_dev, };
struct hid_device *hdev = shield_dev->hdev;
int ret;
/*
* Set an initial capacity and temperature value to avoid prematurely
* triggering alerts. Will be replaced by values queried from initial
* HOSTCMD requests.
*/
ts->psy_stats.capacity = 100;
ts->psy_stats.temp = 182;
shield_dev->battery_dev.desc.properties = thunderstrike_battery_props;
shield_dev->battery_dev.desc.num_properties =
ARRAY_SIZE(thunderstrike_battery_props);
shield_dev->battery_dev.desc.get_property = thunderstrike_battery_get_property;
shield_dev->battery_dev.desc.type = POWER_SUPPLY_TYPE_BATTERY;
shield_dev->battery_dev.desc.name =
devm_kasprintf(&ts->base.hdev->dev, GFP_KERNEL,
"thunderstrike_%d", ts->id);
shield_dev->battery_dev.psy = power_supply_register(
&hdev->dev, &shield_dev->battery_dev.desc, &psy_cfg);
if (IS_ERR(shield_dev->battery_dev.psy)) {
hid_err(hdev, "Failed to register Thunderstrike battery device\n");
return PTR_ERR(shield_dev->battery_dev.psy);
}
ret = power_supply_powers(shield_dev->battery_dev.psy, &hdev->dev);
if (ret) {
hid_err(hdev, "Failed to associate battery device to Thunderstrike\n");
goto err;
}
return 0;
err:
power_supply_unregister(shield_dev->battery_dev.psy);
return ret;
}
static struct shield_device *thunderstrike_create(struct hid_device *hdev)
{
struct shield_device *shield_dev;
struct thunderstrike *ts;
int ret;
ts = devm_kzalloc(&hdev->dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return ERR_PTR(-ENOMEM);
ts->req_report_dmabuf = devm_kzalloc(
&hdev->dev, THUNDERSTRIKE_HOSTCMD_REPORT_SIZE, GFP_KERNEL);
if (!ts->req_report_dmabuf)
return ERR_PTR(-ENOMEM);
shield_dev = &ts->base;
shield_dev->hdev = hdev;
shield_dev->codename = "Thunderstrike";
spin_lock_init(&ts->haptics_update_lock);
spin_lock_init(&ts->psy_stats_lock);
INIT_WORK(&ts->hostcmd_req_work, thunderstrike_hostcmd_req_work_handler);
hid_set_drvdata(hdev, shield_dev);
ts->id = ida_alloc(&thunderstrike_ida, GFP_KERNEL);
if (ts->id < 0)
return ERR_PTR(ts->id);
ts->haptics_dev = shield_haptics_create(shield_dev, thunderstrike_play_effect);
if (IS_ERR(ts->haptics_dev)) {
hid_err(hdev, "Failed to create Thunderstrike haptics instance\n");
ret = PTR_ERR(ts->haptics_dev);
goto err_id;
}
ret = thunderstrike_psy_create(shield_dev);
if (ret) {
hid_err(hdev, "Failed to create Thunderstrike power supply instance\n");
goto err_haptics;
}
ret = thunderstrike_led_create(ts);
if (ret) {
hid_err(hdev, "Failed to create Thunderstrike LED instance\n");
goto err_psy;
}
timer_setup(&ts->psy_stats_timer, thunderstrike_psy_stats_timer_handler, 0);
hid_info(hdev, "Registered Thunderstrike controller\n");
return shield_dev;
err_psy:
power_supply_unregister(shield_dev->battery_dev.psy);
err_haptics:
if (ts->haptics_dev)
input_unregister_device(ts->haptics_dev);
err_id:
ida_free(&thunderstrike_ida, ts->id);
return ERR_PTR(ret);
}
static int android_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 HID_USAGE_ANDROID_PLAYPAUSE_BTN:
android_map_key(KEY_PLAYPAUSE);
break;
case HID_USAGE_ANDROID_VOLUMEUP_BTN:
android_map_key(KEY_VOLUMEUP);
break;
case HID_USAGE_ANDROID_VOLUMEDOWN_BTN:
android_map_key(KEY_VOLUMEDOWN);
break;
case HID_USAGE_ANDROID_SEARCH_BTN:
android_map_key(BTN_Z);
break;
case HID_USAGE_ANDROID_HOME_BTN:
android_map_key(BTN_MODE);
break;
case HID_USAGE_ANDROID_BACK_BTN:
android_map_key(BTN_SELECT);
break;
default:
return 0;
}
return 1;
}
static ssize_t firmware_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct shield_device *shield_dev;
int ret;
shield_dev = hid_get_drvdata(hdev);
if (test_bit(SHIELD_FW_VERSION_INITIALIZED, &shield_dev->initialized_flags))
ret = sysfs_emit(buf, "0x%04X\n", shield_dev->fw_version);
else
ret = sysfs_emit(buf, NOT_INIT_STR "\n");
return ret;
}
static DEVICE_ATTR_RO(firmware_version);
static ssize_t hardware_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct shield_device *shield_dev;
char board_revision_str[4];
int ret;
shield_dev = hid_get_drvdata(hdev);
if (test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags)) {
shield_strrev(board_revision_str, 4, shield_dev->board_info.revision);
ret = sysfs_emit(buf, "%s BOARD_REVISION_%s (0x%04X)\n",
shield_dev->codename, board_revision_str,
shield_dev->board_info.revision);
} else
ret = sysfs_emit(buf, NOT_INIT_STR "\n");
return ret;
}
static DEVICE_ATTR_RO(hardware_version);
static ssize_t serial_number_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hid_device *hdev = to_hid_device(dev);
struct shield_device *shield_dev;
int ret;
shield_dev = hid_get_drvdata(hdev);
if (test_bit(SHIELD_BOARD_INFO_INITIALIZED, &shield_dev->initialized_flags))
ret = sysfs_emit(buf, "%s\n", shield_dev->board_info.serial_number);
else
ret = sysfs_emit(buf, NOT_INIT_STR "\n");
return ret;
}
static DEVICE_ATTR_RO(serial_number);
static struct attribute *shield_device_attrs[] = {
&dev_attr_firmware_version.attr,
&dev_attr_hardware_version.attr,
&dev_attr_serial_number.attr,
NULL,
};
ATTRIBUTE_GROUPS(shield_device);
static int shield_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
struct shield_device *dev = hid_get_drvdata(hdev);
return thunderstrike_parse_report(dev, report, data, size);
}
static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct shield_device *shield_dev = NULL;
struct thunderstrike *ts;
int ret;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Parse failed\n");
return ret;
}
switch (id->product) {
case USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER:
shield_dev = thunderstrike_create(hdev);
break;
}
if (unlikely(!shield_dev)) {
hid_err(hdev, "Failed to identify SHIELD device\n");
return -ENODEV;
}
if (IS_ERR(shield_dev)) {
hid_err(hdev, "Failed to create SHIELD device\n");
return PTR_ERR(shield_dev);
}
ts = container_of(shield_dev, struct thunderstrike, base);
ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT);
if (ret) {
hid_err(hdev, "Failed to start HID device\n");
goto err_haptics;
}
ret = hid_hw_open(hdev);
if (ret) {
hid_err(hdev, "Failed to open HID device\n");
goto err_stop;
}
thunderstrike_device_init_info(shield_dev);
return ret;
err_stop:
hid_hw_stop(hdev);
err_haptics:
if (ts->haptics_dev)
input_unregister_device(ts->haptics_dev);
return ret;
}
static void shield_remove(struct hid_device *hdev)
{
struct shield_device *dev = hid_get_drvdata(hdev);
struct thunderstrike *ts;
ts = container_of(dev, struct thunderstrike, base);
hid_hw_close(hdev);
power_supply_unregister(dev->battery_dev.psy);
if (ts->haptics_dev)
input_unregister_device(ts->haptics_dev);
led_classdev_unregister(&ts->led_dev);
ida_free(&thunderstrike_ida, ts->id);
del_timer_sync(&ts->psy_stats_timer);
cancel_work_sync(&ts->hostcmd_req_work);
hid_hw_stop(hdev);
}
static const struct hid_device_id shield_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NVIDIA,
USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NVIDIA,
USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER) },
{ }
};
MODULE_DEVICE_TABLE(hid, shield_devices);
static struct hid_driver shield_driver = {
.name = "shield",
.id_table = shield_devices,
.input_mapping = android_input_mapping,
.probe = shield_probe,
.remove = shield_remove,
.raw_event = shield_raw_event,
.driver = {
.dev_groups = shield_device_groups,
},
};
module_hid_driver(shield_driver);
MODULE_AUTHOR("Rahul Rameshbabu <[email protected]>");
MODULE_DESCRIPTION("HID Driver for NVIDIA SHIELD peripherals.");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-nvidia-shield.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Keytouch devices not fully compliant with HID standard
*
* Copyright (c) 2011 Jiri Kosina
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* Replace the broken report descriptor of this device with rather
* a default one */
static __u8 keytouch_fixed_rdesc[] = {
0x05, 0x01, 0x09, 0x06, 0xa1, 0x01, 0x05, 0x07, 0x19, 0xe0, 0x29, 0xe7, 0x15,
0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08,
0x81, 0x01, 0x95, 0x03, 0x75, 0x01, 0x05, 0x08, 0x19, 0x01, 0x29, 0x03, 0x91,
0x02, 0x95, 0x05, 0x75, 0x01, 0x91, 0x01, 0x95, 0x06, 0x75, 0x08, 0x15, 0x00,
0x26, 0xff, 0x00, 0x05, 0x07, 0x19, 0x00, 0x2a, 0xff, 0x00, 0x81, 0x00, 0xc0
};
static __u8 *keytouch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
hid_info(hdev, "fixing up Keytouch IEC report descriptor\n");
rdesc = keytouch_fixed_rdesc;
*rsize = sizeof(keytouch_fixed_rdesc);
return rdesc;
}
static const struct hid_device_id keytouch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
{ }
};
MODULE_DEVICE_TABLE(hid, keytouch_devices);
static struct hid_driver keytouch_driver = {
.name = "keytouch",
.id_table = keytouch_devices,
.report_fixup = keytouch_report_fixup,
};
module_hid_driver(keytouch_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jiri Kosina");
| linux-master | drivers/hid/hid-keytouch.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* LED & force feedback support for BigBen Interactive
*
* 0x146b:0x0902 "Bigben Interactive Bigben Game Pad"
* "Kid-friendly Wired Controller" PS3OFMINIPAD SONY
* sold for use with the PS3
*
* Copyright (c) 2018 Hanno Zulla <[email protected]>
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/leds.h>
#include <linux/hid.h>
#include "hid-ids.h"
/*
* The original descriptor for 0x146b:0x0902
*
* 0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
* 0x09, 0x05, // Usage (Game Pad)
* 0xA1, 0x01, // Collection (Application)
* 0x15, 0x00, // Logical Minimum (0)
* 0x25, 0x01, // Logical Maximum (1)
* 0x35, 0x00, // Physical Minimum (0)
* 0x45, 0x01, // Physical Maximum (1)
* 0x75, 0x01, // Report Size (1)
* 0x95, 0x0D, // Report Count (13)
* 0x05, 0x09, // Usage Page (Button)
* 0x19, 0x01, // Usage Minimum (0x01)
* 0x29, 0x0D, // Usage Maximum (0x0D)
* 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0x95, 0x03, // Report Count (3)
* 0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
* 0x25, 0x07, // Logical Maximum (7)
* 0x46, 0x3B, 0x01, // Physical Maximum (315)
* 0x75, 0x04, // Report Size (4)
* 0x95, 0x01, // Report Count (1)
* 0x65, 0x14, // Unit (System: English Rotation, Length: Centimeter)
* 0x09, 0x39, // Usage (Hat switch)
* 0x81, 0x42, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State)
* 0x65, 0x00, // Unit (None)
* 0x95, 0x01, // Report Count (1)
* 0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0x26, 0xFF, 0x00, // Logical Maximum (255)
* 0x46, 0xFF, 0x00, // Physical Maximum (255)
* 0x09, 0x30, // Usage (X)
* 0x09, 0x31, // Usage (Y)
* 0x09, 0x32, // Usage (Z)
* 0x09, 0x35, // Usage (Rz)
* 0x75, 0x08, // Report Size (8)
* 0x95, 0x04, // Report Count (4)
* 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined 0xFF00)
* 0x09, 0x20, // Usage (0x20)
* 0x09, 0x21, // Usage (0x21)
* 0x09, 0x22, // Usage (0x22)
* 0x09, 0x23, // Usage (0x23)
* 0x09, 0x24, // Usage (0x24)
* 0x09, 0x25, // Usage (0x25)
* 0x09, 0x26, // Usage (0x26)
* 0x09, 0x27, // Usage (0x27)
* 0x09, 0x28, // Usage (0x28)
* 0x09, 0x29, // Usage (0x29)
* 0x09, 0x2A, // Usage (0x2A)
* 0x09, 0x2B, // Usage (0x2B)
* 0x95, 0x0C, // Report Count (12)
* 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0x0A, 0x21, 0x26, // Usage (0x2621)
* 0x95, 0x08, // Report Count (8)
* 0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
* 0x0A, 0x21, 0x26, // Usage (0x2621)
* 0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
* 0x26, 0xFF, 0x03, // Logical Maximum (1023)
* 0x46, 0xFF, 0x03, // Physical Maximum (1023)
* 0x09, 0x2C, // Usage (0x2C)
* 0x09, 0x2D, // Usage (0x2D)
* 0x09, 0x2E, // Usage (0x2E)
* 0x09, 0x2F, // Usage (0x2F)
* 0x75, 0x10, // Report Size (16)
* 0x95, 0x04, // Report Count (4)
* 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
* 0xC0, // End Collection
*/
#define PID0902_RDESC_ORIG_SIZE 137
/*
* The fixed descriptor for 0x146b:0x0902
*
* - map buttons according to gamepad.rst
* - assign right stick from Z/Rz to Rx/Ry
* - map previously unused analog trigger data to Z/RZ
* - simplify feature and output descriptor
*/
static __u8 pid0902_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x09, 0x05, /* Usage (Game Pad) */
0xA1, 0x01, /* Collection (Application) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x35, 0x00, /* Physical Minimum (0) */
0x45, 0x01, /* Physical Maximum (1) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x0D, /* Report Count (13) */
0x05, 0x09, /* Usage Page (Button) */
0x09, 0x05, /* Usage (BTN_WEST) */
0x09, 0x01, /* Usage (BTN_SOUTH) */
0x09, 0x02, /* Usage (BTN_EAST) */
0x09, 0x04, /* Usage (BTN_NORTH) */
0x09, 0x07, /* Usage (BTN_TL) */
0x09, 0x08, /* Usage (BTN_TR) */
0x09, 0x09, /* Usage (BTN_TL2) */
0x09, 0x0A, /* Usage (BTN_TR2) */
0x09, 0x0B, /* Usage (BTN_SELECT) */
0x09, 0x0C, /* Usage (BTN_START) */
0x09, 0x0E, /* Usage (BTN_THUMBL) */
0x09, 0x0F, /* Usage (BTN_THUMBR) */
0x09, 0x0D, /* Usage (BTN_MODE) */
0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x03, /* Report Count (3) */
0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x25, 0x07, /* Logical Maximum (7) */
0x46, 0x3B, 0x01, /* Physical Maximum (315) */
0x75, 0x04, /* Report Size (4) */
0x95, 0x01, /* Report Count (1) */
0x65, 0x14, /* Unit (System: English Rotation, Length: Centimeter) */
0x09, 0x39, /* Usage (Hat switch) */
0x81, 0x42, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,Null State) */
0x65, 0x00, /* Unit (None) */
0x95, 0x01, /* Report Count (1) */
0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x26, 0xFF, 0x00, /* Logical Maximum (255) */
0x46, 0xFF, 0x00, /* Physical Maximum (255) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x09, 0x33, /* Usage (Rx) */
0x09, 0x34, /* Usage (Ry) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x04, /* Report Count (4) */
0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x95, 0x0A, /* Report Count (10) */
0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x26, 0xFF, 0x00, /* Logical Maximum (255) */
0x46, 0xFF, 0x00, /* Physical Maximum (255) */
0x09, 0x32, /* Usage (Z) */
0x09, 0x35, /* Usage (Rz) */
0x95, 0x02, /* Report Count (2) */
0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x95, 0x08, /* Report Count (8) */
0x81, 0x01, /* Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined 0xFF00) */
0xB1, 0x02, /* Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) */
0x0A, 0x21, 0x26, /* Usage (0x2621) */
0x95, 0x08, /* Report Count (8) */
0x91, 0x02, /* Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) */
0x0A, 0x21, 0x26, /* Usage (0x2621) */
0x95, 0x08, /* Report Count (8) */
0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
0xC0, /* End Collection */
};
#define NUM_LEDS 4
struct bigben_device {
struct hid_device *hid;
struct hid_report *report;
spinlock_t lock;
bool removed;
u8 led_state; /* LED1 = 1 .. LED4 = 8 */
u8 right_motor_on; /* right motor off/on 0/1 */
u8 left_motor_force; /* left motor force 0-255 */
struct led_classdev *leds[NUM_LEDS];
bool work_led;
bool work_ff;
struct work_struct worker;
};
static inline void bigben_schedule_work(struct bigben_device *bigben)
{
unsigned long flags;
spin_lock_irqsave(&bigben->lock, flags);
if (!bigben->removed)
schedule_work(&bigben->worker);
spin_unlock_irqrestore(&bigben->lock, flags);
}
static void bigben_worker(struct work_struct *work)
{
struct bigben_device *bigben = container_of(work,
struct bigben_device, worker);
struct hid_field *report_field = bigben->report->field[0];
bool do_work_led = false;
bool do_work_ff = false;
u8 *buf;
u32 len;
unsigned long flags;
buf = hid_alloc_report_buf(bigben->report, GFP_KERNEL);
if (!buf)
return;
len = hid_report_len(bigben->report);
/* LED work */
spin_lock_irqsave(&bigben->lock, flags);
if (bigben->work_led) {
bigben->work_led = false;
do_work_led = true;
report_field->value[0] = 0x01; /* 1 = led message */
report_field->value[1] = 0x08; /* reserved value, always 8 */
report_field->value[2] = bigben->led_state;
report_field->value[3] = 0x00; /* padding */
report_field->value[4] = 0x00; /* padding */
report_field->value[5] = 0x00; /* padding */
report_field->value[6] = 0x00; /* padding */
report_field->value[7] = 0x00; /* padding */
hid_output_report(bigben->report, buf);
}
spin_unlock_irqrestore(&bigben->lock, flags);
if (do_work_led) {
hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
bigben->report->type, HID_REQ_SET_REPORT);
}
/* FF work */
spin_lock_irqsave(&bigben->lock, flags);
if (bigben->work_ff) {
bigben->work_ff = false;
do_work_ff = true;
report_field->value[0] = 0x02; /* 2 = rumble effect message */
report_field->value[1] = 0x08; /* reserved value, always 8 */
report_field->value[2] = bigben->right_motor_on;
report_field->value[3] = bigben->left_motor_force;
report_field->value[4] = 0xff; /* duration 0-254 (255 = nonstop) */
report_field->value[5] = 0x00; /* padding */
report_field->value[6] = 0x00; /* padding */
report_field->value[7] = 0x00; /* padding */
hid_output_report(bigben->report, buf);
}
spin_unlock_irqrestore(&bigben->lock, flags);
if (do_work_ff) {
hid_hw_raw_request(bigben->hid, bigben->report->id, buf, len,
bigben->report->type, HID_REQ_SET_REPORT);
}
kfree(buf);
}
static int hid_bigben_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct bigben_device *bigben = hid_get_drvdata(hid);
u8 right_motor_on;
u8 left_motor_force;
unsigned long flags;
if (!bigben) {
hid_err(hid, "no device data\n");
return 0;
}
if (effect->type != FF_RUMBLE)
return 0;
right_motor_on = effect->u.rumble.weak_magnitude ? 1 : 0;
left_motor_force = effect->u.rumble.strong_magnitude / 256;
if (right_motor_on != bigben->right_motor_on ||
left_motor_force != bigben->left_motor_force) {
spin_lock_irqsave(&bigben->lock, flags);
bigben->right_motor_on = right_motor_on;
bigben->left_motor_force = left_motor_force;
bigben->work_ff = true;
spin_unlock_irqrestore(&bigben->lock, flags);
bigben_schedule_work(bigben);
}
return 0;
}
static void bigben_set_led(struct led_classdev *led,
enum led_brightness value)
{
struct device *dev = led->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct bigben_device *bigben = hid_get_drvdata(hid);
int n;
bool work;
unsigned long flags;
if (!bigben) {
hid_err(hid, "no device data\n");
return;
}
for (n = 0; n < NUM_LEDS; n++) {
if (led == bigben->leds[n]) {
spin_lock_irqsave(&bigben->lock, flags);
if (value == LED_OFF) {
work = (bigben->led_state & BIT(n));
bigben->led_state &= ~BIT(n);
} else {
work = !(bigben->led_state & BIT(n));
bigben->led_state |= BIT(n);
}
spin_unlock_irqrestore(&bigben->lock, flags);
if (work) {
bigben->work_led = true;
bigben_schedule_work(bigben);
}
return;
}
}
}
static enum led_brightness bigben_get_led(struct led_classdev *led)
{
struct device *dev = led->dev->parent;
struct hid_device *hid = to_hid_device(dev);
struct bigben_device *bigben = hid_get_drvdata(hid);
int n;
if (!bigben) {
hid_err(hid, "no device data\n");
return LED_OFF;
}
for (n = 0; n < NUM_LEDS; n++) {
if (led == bigben->leds[n])
return (bigben->led_state & BIT(n)) ? LED_ON : LED_OFF;
}
return LED_OFF;
}
static void bigben_remove(struct hid_device *hid)
{
struct bigben_device *bigben = hid_get_drvdata(hid);
unsigned long flags;
spin_lock_irqsave(&bigben->lock, flags);
bigben->removed = true;
spin_unlock_irqrestore(&bigben->lock, flags);
cancel_work_sync(&bigben->worker);
hid_hw_stop(hid);
}
static int bigben_probe(struct hid_device *hid,
const struct hid_device_id *id)
{
struct bigben_device *bigben;
struct hid_input *hidinput;
struct led_classdev *led;
char *name;
size_t name_sz;
int n, error;
bigben = devm_kzalloc(&hid->dev, sizeof(*bigben), GFP_KERNEL);
if (!bigben)
return -ENOMEM;
hid_set_drvdata(hid, bigben);
bigben->hid = hid;
bigben->removed = false;
error = hid_parse(hid);
if (error) {
hid_err(hid, "parse failed\n");
return error;
}
error = hid_hw_start(hid, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (error) {
hid_err(hid, "hw start failed\n");
return error;
}
bigben->report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 8);
if (!bigben->report) {
hid_err(hid, "no output report found\n");
error = -ENODEV;
goto error_hw_stop;
}
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
error = -ENODEV;
goto error_hw_stop;
}
hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
set_bit(FF_RUMBLE, hidinput->input->ffbit);
INIT_WORK(&bigben->worker, bigben_worker);
spin_lock_init(&bigben->lock);
error = input_ff_create_memless(hidinput->input, NULL,
hid_bigben_play_effect);
if (error)
goto error_hw_stop;
name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
for (n = 0; n < NUM_LEDS; n++) {
led = devm_kzalloc(
&hid->dev,
sizeof(struct led_classdev) + name_sz,
GFP_KERNEL
);
if (!led) {
error = -ENOMEM;
goto error_hw_stop;
}
name = (void *)(&led[1]);
snprintf(name, name_sz,
"%s:red:bigben%d",
dev_name(&hid->dev), n + 1
);
led->name = name;
led->brightness = (n == 0) ? LED_ON : LED_OFF;
led->max_brightness = 1;
led->brightness_get = bigben_get_led;
led->brightness_set = bigben_set_led;
bigben->leds[n] = led;
error = devm_led_classdev_register(&hid->dev, led);
if (error)
goto error_hw_stop;
}
/* initial state: LED1 is on, no rumble effect */
bigben->led_state = BIT(0);
bigben->right_motor_on = 0;
bigben->left_motor_force = 0;
bigben->work_led = true;
bigben->work_ff = true;
bigben_schedule_work(bigben);
hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
return 0;
error_hw_stop:
hid_hw_stop(hid);
return error;
}
static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == PID0902_RDESC_ORIG_SIZE) {
rdesc = pid0902_rdesc_fixed;
*rsize = sizeof(pid0902_rdesc_fixed);
} else
hid_warn(hid, "unexpected rdesc, please submit for review\n");
return rdesc;
}
static const struct hid_device_id bigben_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_BIGBEN, USB_DEVICE_ID_BIGBEN_PS3OFMINIPAD) },
{ }
};
MODULE_DEVICE_TABLE(hid, bigben_devices);
static struct hid_driver bigben_driver = {
.name = "bigben",
.id_table = bigben_devices,
.probe = bigben_probe,
.report_fixup = bigben_report_fixup,
.remove = bigben_remove,
};
module_hid_driver(bigben_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-bigbenff.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Jabra USB HID Driver
*
* Copyright (c) 2017 Niels Skou Olsen <[email protected]>
*/
/*
*/
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define HID_UP_VENDOR_DEFINED_MIN 0xff000000
#define HID_UP_VENDOR_DEFINED_MAX 0xffff0000
static int jabra_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage,
unsigned long **bit, int *max)
{
int is_vendor_defined =
((usage->hid & HID_USAGE_PAGE) >= HID_UP_VENDOR_DEFINED_MIN &&
(usage->hid & HID_USAGE_PAGE) <= HID_UP_VENDOR_DEFINED_MAX);
dbg_hid("hid=0x%08x appl=0x%08x coll_idx=0x%02x usage_idx=0x%02x: %s\n",
usage->hid,
field->application,
usage->collection_index,
usage->usage_index,
is_vendor_defined ? "ignored" : "defaulted");
/* Ignore vendor defined usages, default map standard usages */
return is_vendor_defined ? -1 : 0;
}
static const struct hid_device_id jabra_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, jabra_devices);
static struct hid_driver jabra_driver = {
.name = "jabra",
.id_table = jabra_devices,
.input_mapping = jabra_input_mapping,
};
module_hid_driver(jabra_driver);
MODULE_AUTHOR("Niels Skou Olsen <[email protected]>");
MODULE_DESCRIPTION("Jabra USB HID Driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-jabra.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/input.h>
#include "hid-ids.h"
#include <linux/fb.h>
#include <linux/vmalloc.h>
#include <linux/backlight.h>
#include <linux/lcd.h>
#include <linux/leds.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/completion.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include "hid-picolcd.h"
void picolcd_leds_set(struct picolcd_data *data)
{
struct hid_report *report;
unsigned long flags;
if (!data->led[0])
return;
report = picolcd_out_report(REPORT_LED_STATE, data->hdev);
if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
return;
spin_lock_irqsave(&data->lock, flags);
hid_set_field(report->field[0], 0, data->led_state);
if (!(data->status & PICOLCD_FAILED))
hid_hw_request(data->hdev, report, HID_REQ_SET_REPORT);
spin_unlock_irqrestore(&data->lock, flags);
}
static void picolcd_led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev;
struct hid_device *hdev;
struct picolcd_data *data;
int i, state = 0;
dev = led_cdev->dev->parent;
hdev = to_hid_device(dev);
data = hid_get_drvdata(hdev);
if (!data)
return;
for (i = 0; i < 8; i++) {
if (led_cdev != data->led[i])
continue;
state = (data->led_state >> i) & 1;
if (value == LED_OFF && state) {
data->led_state &= ~(1 << i);
picolcd_leds_set(data);
} else if (value != LED_OFF && !state) {
data->led_state |= 1 << i;
picolcd_leds_set(data);
}
break;
}
}
static enum led_brightness picolcd_led_get_brightness(struct led_classdev *led_cdev)
{
struct device *dev;
struct hid_device *hdev;
struct picolcd_data *data;
int i, value = 0;
dev = led_cdev->dev->parent;
hdev = to_hid_device(dev);
data = hid_get_drvdata(hdev);
for (i = 0; i < 8; i++)
if (led_cdev == data->led[i]) {
value = (data->led_state >> i) & 1;
break;
}
return value ? LED_FULL : LED_OFF;
}
int picolcd_init_leds(struct picolcd_data *data, struct hid_report *report)
{
struct device *dev = &data->hdev->dev;
struct led_classdev *led;
size_t name_sz = strlen(dev_name(dev)) + 8;
char *name;
int i, ret = 0;
if (!report)
return -ENODEV;
if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
report->field[0]->report_size != 8) {
dev_err(dev, "unsupported LED_STATE report");
return -EINVAL;
}
for (i = 0; i < 8; i++) {
led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL);
if (!led) {
dev_err(dev, "can't allocate memory for LED %d\n", i);
ret = -ENOMEM;
goto err;
}
name = (void *)(&led[1]);
snprintf(name, name_sz, "%s::GPO%d", dev_name(dev), i);
led->name = name;
led->brightness = 0;
led->max_brightness = 1;
led->brightness_get = picolcd_led_get_brightness;
led->brightness_set = picolcd_led_set_brightness;
data->led[i] = led;
ret = led_classdev_register(dev, data->led[i]);
if (ret) {
data->led[i] = NULL;
kfree(led);
dev_err(dev, "can't register LED %d\n", i);
goto err;
}
}
return 0;
err:
for (i = 0; i < 8; i++)
if (data->led[i]) {
led = data->led[i];
data->led[i] = NULL;
led_classdev_unregister(led);
kfree(led);
}
return ret;
}
void picolcd_exit_leds(struct picolcd_data *data)
{
struct led_classdev *led;
int i;
for (i = 0; i < 8; i++) {
led = data->led[i];
data->led[i] = NULL;
if (!led)
continue;
led_classdev_unregister(led);
kfree(led);
}
}
| linux-master | drivers/hid/hid-picolcd_leds.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some sunplus "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"
static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 112 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
rdesc[106] == 0x03) {
hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n");
rdesc[105] = rdesc[110] = 0x03;
rdesc[106] = rdesc[111] = 0x21;
}
return rdesc;
}
#define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int sp_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 0x2003: sp_map_key_clear(KEY_ZOOMIN); break;
case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break;
default:
return 0;
}
return 1;
}
static const struct hid_device_id sp_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
{ }
};
MODULE_DEVICE_TABLE(hid, sp_devices);
static struct hid_driver sp_driver = {
.name = "sunplus",
.id_table = sp_devices,
.report_fixup = sp_report_fixup,
.input_mapping = sp_input_mapping,
};
module_hid_driver(sp_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-sunplus.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2009, Citrix Systems, Inc.
* Copyright (c) 2010, Microsoft Corporation.
* Copyright (c) 2011, Novell Inc.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/completion.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/hyperv.h>
struct hv_input_dev_info {
unsigned int size;
unsigned short vendor;
unsigned short product;
unsigned short version;
unsigned short reserved[11];
};
/*
* Current version
*
* History:
* Beta, RC < 2008/1/22 1,0
* RC > 2008/1/22 2,0
*/
#define SYNTHHID_INPUT_VERSION_MAJOR 2
#define SYNTHHID_INPUT_VERSION_MINOR 0
#define SYNTHHID_INPUT_VERSION (SYNTHHID_INPUT_VERSION_MINOR | \
(SYNTHHID_INPUT_VERSION_MAJOR << 16))
#pragma pack(push, 1)
/*
* Message types in the synthetic input protocol
*/
enum synthhid_msg_type {
SYNTH_HID_PROTOCOL_REQUEST,
SYNTH_HID_PROTOCOL_RESPONSE,
SYNTH_HID_INITIAL_DEVICE_INFO,
SYNTH_HID_INITIAL_DEVICE_INFO_ACK,
SYNTH_HID_INPUT_REPORT,
SYNTH_HID_MAX
};
/*
* Basic message structures.
*/
struct synthhid_msg_hdr {
enum synthhid_msg_type type;
u32 size;
};
union synthhid_version {
struct {
u16 minor_version;
u16 major_version;
};
u32 version;
};
/*
* Protocol messages
*/
struct synthhid_protocol_request {
struct synthhid_msg_hdr header;
union synthhid_version version_requested;
};
struct synthhid_protocol_response {
struct synthhid_msg_hdr header;
union synthhid_version version_requested;
unsigned char approved;
};
struct synthhid_device_info {
struct synthhid_msg_hdr header;
struct hv_input_dev_info hid_dev_info;
struct hid_descriptor hid_descriptor;
};
struct synthhid_device_info_ack {
struct synthhid_msg_hdr header;
unsigned char reserved;
};
struct synthhid_input_report {
struct synthhid_msg_hdr header;
char buffer[];
};
#pragma pack(pop)
#define INPUTVSC_SEND_RING_BUFFER_SIZE VMBUS_RING_SIZE(36 * 1024)
#define INPUTVSC_RECV_RING_BUFFER_SIZE VMBUS_RING_SIZE(36 * 1024)
enum pipe_prot_msg_type {
PIPE_MESSAGE_INVALID,
PIPE_MESSAGE_DATA,
PIPE_MESSAGE_MAXIMUM
};
struct pipe_prt_msg {
enum pipe_prot_msg_type type;
u32 size;
char data[];
};
struct mousevsc_prt_msg {
enum pipe_prot_msg_type type;
u32 size;
union {
struct synthhid_protocol_request request;
struct synthhid_protocol_response response;
struct synthhid_device_info_ack ack;
};
};
/*
* Represents an mousevsc device
*/
struct mousevsc_dev {
struct hv_device *device;
bool init_complete;
bool connected;
struct mousevsc_prt_msg protocol_req;
struct mousevsc_prt_msg protocol_resp;
/* Synchronize the request/response if needed */
struct completion wait_event;
int dev_info_status;
struct hid_descriptor *hid_desc;
unsigned char *report_desc;
u32 report_desc_size;
struct hv_input_dev_info hid_dev_info;
struct hid_device *hid_device;
u8 input_buf[HID_MAX_BUFFER_SIZE];
};
static struct mousevsc_dev *mousevsc_alloc_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
input_dev = kzalloc(sizeof(struct mousevsc_dev), GFP_KERNEL);
if (!input_dev)
return NULL;
input_dev->device = device;
hv_set_drvdata(device, input_dev);
init_completion(&input_dev->wait_event);
input_dev->init_complete = false;
return input_dev;
}
static void mousevsc_free_device(struct mousevsc_dev *device)
{
kfree(device->hid_desc);
kfree(device->report_desc);
hv_set_drvdata(device->device, NULL);
kfree(device);
}
static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
struct synthhid_device_info *device_info)
{
int ret = 0;
struct hid_descriptor *desc;
struct mousevsc_prt_msg ack;
input_device->dev_info_status = -ENOMEM;
input_device->hid_dev_info = device_info->hid_dev_info;
desc = &device_info->hid_descriptor;
if (desc->bLength == 0)
goto cleanup;
/* The pointer is not NULL when we resume from hibernation */
kfree(input_device->hid_desc);
input_device->hid_desc = kmemdup(desc, desc->bLength, GFP_ATOMIC);
if (!input_device->hid_desc)
goto cleanup;
input_device->report_desc_size = le16_to_cpu(
desc->desc[0].wDescriptorLength);
if (input_device->report_desc_size == 0) {
input_device->dev_info_status = -EINVAL;
goto cleanup;
}
/* The pointer is not NULL when we resume from hibernation */
kfree(input_device->report_desc);
input_device->report_desc = kzalloc(input_device->report_desc_size,
GFP_ATOMIC);
if (!input_device->report_desc) {
input_device->dev_info_status = -ENOMEM;
goto cleanup;
}
memcpy(input_device->report_desc,
((unsigned char *)desc) + desc->bLength,
le16_to_cpu(desc->desc[0].wDescriptorLength));
/* Send the ack */
memset(&ack, 0, sizeof(struct mousevsc_prt_msg));
ack.type = PIPE_MESSAGE_DATA;
ack.size = sizeof(struct synthhid_device_info_ack);
ack.ack.header.type = SYNTH_HID_INITIAL_DEVICE_INFO_ACK;
ack.ack.header.size = 1;
ack.ack.reserved = 0;
ret = vmbus_sendpacket(input_device->device->channel,
&ack,
sizeof(struct pipe_prt_msg) +
sizeof(struct synthhid_device_info_ack),
(unsigned long)&ack,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (!ret)
input_device->dev_info_status = 0;
cleanup:
complete(&input_device->wait_event);
return;
}
static void mousevsc_on_receive(struct hv_device *device,
struct vmpacket_descriptor *packet)
{
struct pipe_prt_msg *pipe_msg;
struct synthhid_msg_hdr *hid_msg_hdr;
struct mousevsc_dev *input_dev = hv_get_drvdata(device);
struct synthhid_input_report *input_report;
size_t len;
pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet +
(packet->offset8 << 3));
if (pipe_msg->type != PIPE_MESSAGE_DATA)
return;
hid_msg_hdr = (struct synthhid_msg_hdr *)pipe_msg->data;
switch (hid_msg_hdr->type) {
case SYNTH_HID_PROTOCOL_RESPONSE:
len = struct_size(pipe_msg, data, pipe_msg->size);
/*
* While it will be impossible for us to protect against
* malicious/buggy hypervisor/host, add a check here to
* ensure we don't corrupt memory.
*/
if (WARN_ON(len > sizeof(struct mousevsc_prt_msg)))
break;
memcpy(&input_dev->protocol_resp, pipe_msg, len);
complete(&input_dev->wait_event);
break;
case SYNTH_HID_INITIAL_DEVICE_INFO:
WARN_ON(pipe_msg->size < sizeof(struct hv_input_dev_info));
/*
* Parse out the device info into device attr,
* hid desc and report desc
*/
mousevsc_on_receive_device_info(input_dev,
(struct synthhid_device_info *)pipe_msg->data);
break;
case SYNTH_HID_INPUT_REPORT:
input_report =
(struct synthhid_input_report *)pipe_msg->data;
if (!input_dev->init_complete)
break;
len = min(input_report->header.size,
(u32)sizeof(input_dev->input_buf));
memcpy(input_dev->input_buf, input_report->buffer, len);
hid_input_report(input_dev->hid_device, HID_INPUT_REPORT,
input_dev->input_buf, len, 1);
pm_wakeup_hard_event(&input_dev->device->device);
break;
default:
pr_err("unsupported hid msg type - type %d len %d\n",
hid_msg_hdr->type, hid_msg_hdr->size);
break;
}
}
static void mousevsc_on_channel_callback(void *context)
{
struct hv_device *device = context;
struct vmpacket_descriptor *desc;
foreach_vmbus_pkt(desc, device->channel) {
switch (desc->type) {
case VM_PKT_COMP:
break;
case VM_PKT_DATA_INBAND:
mousevsc_on_receive(device, desc);
break;
default:
pr_err("Unhandled packet type %d, tid %llx len %d\n",
desc->type, desc->trans_id, desc->len8 * 8);
break;
}
}
}
static int mousevsc_connect_to_vsp(struct hv_device *device)
{
int ret = 0;
unsigned long t;
struct mousevsc_dev *input_dev = hv_get_drvdata(device);
struct mousevsc_prt_msg *request;
struct mousevsc_prt_msg *response;
reinit_completion(&input_dev->wait_event);
request = &input_dev->protocol_req;
memset(request, 0, sizeof(struct mousevsc_prt_msg));
request->type = PIPE_MESSAGE_DATA;
request->size = sizeof(struct synthhid_protocol_request);
request->request.header.type = SYNTH_HID_PROTOCOL_REQUEST;
request->request.header.size = sizeof(unsigned int);
request->request.version_requested.version = SYNTHHID_INPUT_VERSION;
ret = vmbus_sendpacket(device->channel, request,
sizeof(struct pipe_prt_msg) +
sizeof(struct synthhid_protocol_request),
(unsigned long)request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret)
goto cleanup;
t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
if (!t) {
ret = -ETIMEDOUT;
goto cleanup;
}
response = &input_dev->protocol_resp;
if (!response->response.approved) {
pr_err("synthhid protocol request failed (version %d)\n",
SYNTHHID_INPUT_VERSION);
ret = -ENODEV;
goto cleanup;
}
t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
if (!t) {
ret = -ETIMEDOUT;
goto cleanup;
}
/*
* We should have gotten the device attr, hid desc and report
* desc at this point
*/
ret = input_dev->dev_info_status;
cleanup:
return ret;
}
static int mousevsc_hid_parse(struct hid_device *hid)
{
struct hv_device *dev = hid_get_drvdata(hid);
struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
return hid_parse_report(hid, input_dev->report_desc,
input_dev->report_desc_size);
}
static int mousevsc_hid_open(struct hid_device *hid)
{
return 0;
}
static int mousevsc_hid_start(struct hid_device *hid)
{
return 0;
}
static void mousevsc_hid_close(struct hid_device *hid)
{
}
static void mousevsc_hid_stop(struct hid_device *hid)
{
}
static int mousevsc_hid_raw_request(struct hid_device *hid,
unsigned char report_num,
__u8 *buf, size_t len,
unsigned char rtype,
int reqtype)
{
return 0;
}
static const struct hid_ll_driver mousevsc_ll_driver = {
.parse = mousevsc_hid_parse,
.open = mousevsc_hid_open,
.close = mousevsc_hid_close,
.start = mousevsc_hid_start,
.stop = mousevsc_hid_stop,
.raw_request = mousevsc_hid_raw_request,
};
static struct hid_driver mousevsc_hid_driver;
static int mousevsc_probe(struct hv_device *device,
const struct hv_vmbus_device_id *dev_id)
{
int ret;
struct mousevsc_dev *input_dev;
struct hid_device *hid_dev;
input_dev = mousevsc_alloc_device(device);
if (!input_dev)
return -ENOMEM;
ret = vmbus_open(device->channel,
INPUTVSC_SEND_RING_BUFFER_SIZE,
INPUTVSC_RECV_RING_BUFFER_SIZE,
NULL,
0,
mousevsc_on_channel_callback,
device
);
if (ret)
goto probe_err0;
ret = mousevsc_connect_to_vsp(device);
if (ret)
goto probe_err1;
/* workaround SA-167 */
if (input_dev->report_desc[14] == 0x25)
input_dev->report_desc[14] = 0x29;
hid_dev = hid_allocate_device();
if (IS_ERR(hid_dev)) {
ret = PTR_ERR(hid_dev);
goto probe_err1;
}
hid_dev->ll_driver = &mousevsc_ll_driver;
hid_dev->driver = &mousevsc_hid_driver;
hid_dev->bus = BUS_VIRTUAL;
hid_dev->vendor = input_dev->hid_dev_info.vendor;
hid_dev->product = input_dev->hid_dev_info.product;
hid_dev->version = input_dev->hid_dev_info.version;
input_dev->hid_device = hid_dev;
sprintf(hid_dev->name, "%s", "Microsoft Vmbus HID-compliant Mouse");
hid_set_drvdata(hid_dev, device);
ret = hid_add_device(hid_dev);
if (ret)
goto probe_err2;
ret = hid_parse(hid_dev);
if (ret) {
hid_err(hid_dev, "parse failed\n");
goto probe_err2;
}
ret = hid_hw_start(hid_dev, HID_CONNECT_HIDINPUT | HID_CONNECT_HIDDEV);
if (ret) {
hid_err(hid_dev, "hw start failed\n");
goto probe_err2;
}
device_init_wakeup(&device->device, true);
input_dev->connected = true;
input_dev->init_complete = true;
return ret;
probe_err2:
hid_destroy_device(hid_dev);
probe_err1:
vmbus_close(device->channel);
probe_err0:
mousevsc_free_device(input_dev);
return ret;
}
static void mousevsc_remove(struct hv_device *dev)
{
struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
device_init_wakeup(&dev->device, false);
vmbus_close(dev->channel);
hid_hw_stop(input_dev->hid_device);
hid_destroy_device(input_dev->hid_device);
mousevsc_free_device(input_dev);
}
static int mousevsc_suspend(struct hv_device *dev)
{
vmbus_close(dev->channel);
return 0;
}
static int mousevsc_resume(struct hv_device *dev)
{
int ret;
ret = vmbus_open(dev->channel,
INPUTVSC_SEND_RING_BUFFER_SIZE,
INPUTVSC_RECV_RING_BUFFER_SIZE,
NULL, 0,
mousevsc_on_channel_callback,
dev);
if (ret)
return ret;
ret = mousevsc_connect_to_vsp(dev);
return ret;
}
static const struct hv_vmbus_device_id id_table[] = {
/* Mouse guid */
{ HV_MOUSE_GUID, },
{ },
};
MODULE_DEVICE_TABLE(vmbus, id_table);
static struct hv_driver mousevsc_drv = {
.name = KBUILD_MODNAME,
.id_table = id_table,
.probe = mousevsc_probe,
.remove = mousevsc_remove,
.suspend = mousevsc_suspend,
.resume = mousevsc_resume,
.driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static int __init mousevsc_init(void)
{
return vmbus_driver_register(&mousevsc_drv);
}
static void __exit mousevsc_exit(void)
{
vmbus_driver_unregister(&mousevsc_drv);
}
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Microsoft Hyper-V Synthetic HID Driver");
module_init(mousevsc_init);
module_exit(mousevsc_exit);
| linux-master | drivers/hid/hid-hyperv.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Xin-Mo devices, currently only the Dual Arcade controller.
* Fixes the negative axis event values (the devices sends -2) to match the
* logical axis minimum of the HID report descriptor (the report announces
* -1). It is needed because hid-input discards out of bounds values.
* (This module is based on "hid-saitek" and "hid-lg".)
*
* Copyright (c) 2013 Olivier Scherler
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include "hid-ids.h"
/*
* Fix negative events that are out of bounds.
*/
static int xinmo_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
switch (usage->code) {
case ABS_X:
case ABS_Y:
case ABS_Z:
case ABS_RX:
if (value < -1) {
input_event(field->hidinput->input, usage->type,
usage->code, -1);
return 1;
}
break;
}
return 0;
}
static const struct hid_device_id xinmo_devices[] = {
{ 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) },
{ }
};
MODULE_DEVICE_TABLE(hid, xinmo_devices);
static struct hid_driver xinmo_driver = {
.name = "xinmo",
.id_table = xinmo_devices,
.event = xinmo_event
};
module_hid_driver(xinmo_driver);
MODULE_LICENSE("GPL");
| linux-master | drivers/hid/hid-xinmo.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/backlight.h>
#include "hid-picolcd.h"
static int picolcd_get_brightness(struct backlight_device *bdev)
{
struct picolcd_data *data = bl_get_data(bdev);
return data->lcd_brightness;
}
static int picolcd_set_brightness(struct backlight_device *bdev)
{
struct picolcd_data *data = bl_get_data(bdev);
struct hid_report *report = picolcd_out_report(REPORT_BRIGHTNESS, data->hdev);
unsigned long flags;
if (!report || report->maxfield != 1 || report->field[0]->report_count != 1)
return -ENODEV;
data->lcd_brightness = bdev->props.brightness & 0x0ff;
data->lcd_power = bdev->props.power;
spin_lock_irqsave(&data->lock, flags);
hid_set_field(report->field[0], 0, data->lcd_power == FB_BLANK_UNBLANK ? data->lcd_brightness : 0);
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_bl_fb(struct backlight_device *bdev, struct fb_info *fb)
{
return fb && fb == picolcd_fbinfo((struct picolcd_data *)bl_get_data(bdev));
}
static const struct backlight_ops picolcd_blops = {
.update_status = picolcd_set_brightness,
.get_brightness = picolcd_get_brightness,
.check_fb = picolcd_check_bl_fb,
};
int picolcd_init_backlight(struct picolcd_data *data, struct hid_report *report)
{
struct device *dev = &data->hdev->dev;
struct backlight_device *bdev;
struct backlight_properties props;
if (!report)
return -ENODEV;
if (report->maxfield != 1 || report->field[0]->report_count != 1 ||
report->field[0]->report_size != 8) {
dev_err(dev, "unsupported BRIGHTNESS report");
return -EINVAL;
}
memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_RAW;
props.max_brightness = 0xff;
bdev = backlight_device_register(dev_name(dev), dev, data,
&picolcd_blops, &props);
if (IS_ERR(bdev)) {
dev_err(dev, "failed to register backlight\n");
return PTR_ERR(bdev);
}
bdev->props.brightness = 0xff;
data->lcd_brightness = 0xff;
data->backlight = bdev;
picolcd_set_brightness(bdev);
return 0;
}
void picolcd_exit_backlight(struct picolcd_data *data)
{
struct backlight_device *bdev = data->backlight;
data->backlight = NULL;
backlight_device_unregister(bdev);
}
int picolcd_resume_backlight(struct picolcd_data *data)
{
if (!data->backlight)
return 0;
return picolcd_set_brightness(data->backlight);
}
#ifdef CONFIG_PM
void picolcd_suspend_backlight(struct picolcd_data *data)
{
int bl_power = data->lcd_power;
if (!data->backlight)
return;
data->backlight->props.power = FB_BLANK_POWERDOWN;
picolcd_set_brightness(data->backlight);
data->lcd_power = data->backlight->props.power = bl_power;
}
#endif /* CONFIG_PM */
| linux-master | drivers/hid/hid-picolcd_backlight.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"
#include "./hid-uclogic-rdesc.h"
#define MAX_STR_DESC_SIZE 14
struct uclogic_parse_ugee_v2_desc_case {
const char *name;
int res;
const __u8 str_desc[MAX_STR_DESC_SIZE];
size_t str_desc_size;
const s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
enum uclogic_params_frame_type frame_type;
};
static struct uclogic_parse_ugee_v2_desc_case uclogic_parse_ugee_v2_desc_cases[] = {
{
.name = "invalid_str_desc",
.res = -EINVAL,
.str_desc = {},
.str_desc_size = 0,
.desc_params = {},
.frame_type = UCLOGIC_PARAMS_FRAME_BUTTONS,
},
{
.name = "resolution_with_value_0",
.res = 0,
.str_desc = {
0x0E, 0x03,
0x70, 0xB2,
0x10, 0x77,
0x08,
0x00,
0xFF, 0x1F,
0x00, 0x00,
},
.str_desc_size = 12,
.desc_params = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xB270,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0,
[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0x7710,
[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0,
[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0x1FFF,
[UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0x08,
},
.frame_type = UCLOGIC_PARAMS_FRAME_BUTTONS,
},
/* XP-PEN Deco L str_desc: Frame with 8 buttons */
{
.name = "frame_type_buttons",
.res = 0,
.str_desc = {
0x0E, 0x03,
0x70, 0xB2,
0x10, 0x77,
0x08,
0x00,
0xFF, 0x1F,
0xD8, 0x13,
},
.str_desc_size = 12,
.desc_params = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xB270,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0x2320,
[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0x7710,
[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0x1770,
[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0x1FFF,
[UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0x08,
},
.frame_type = UCLOGIC_PARAMS_FRAME_BUTTONS,
},
/* PARBLO A610 PRO str_desc: Frame with 9 buttons and dial */
{
.name = "frame_type_dial",
.res = 0,
.str_desc = {
0x0E, 0x03,
0x96, 0xC7,
0xF9, 0x7C,
0x09,
0x01,
0xFF, 0x1F,
0xD8, 0x13,
},
.str_desc_size = 12,
.desc_params = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xC796,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0x2749,
[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0x7CF9,
[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0x1899,
[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0x1FFF,
[UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0x09,
},
.frame_type = UCLOGIC_PARAMS_FRAME_DIAL,
},
/* XP-PEN Deco Pro S str_desc: Frame with 8 buttons and mouse */
{
.name = "frame_type_mouse",
.res = 0,
.str_desc = {
0x0E, 0x03,
0xC8, 0xB3,
0x34, 0x65,
0x08,
0x02,
0xFF, 0x1F,
0xD8, 0x13,
},
.str_desc_size = 12,
.desc_params = {
[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = 0xB3C8,
[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0x2363,
[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = 0x6534,
[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0x13EC,
[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = 0x1FFF,
[UCLOGIC_RDESC_FRAME_PH_ID_UM] = 0x08,
},
.frame_type = UCLOGIC_PARAMS_FRAME_MOUSE,
},
};
static void uclogic_parse_ugee_v2_desc_case_desc(struct uclogic_parse_ugee_v2_desc_case *t,
char *desc)
{
strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
}
KUNIT_ARRAY_PARAM(uclogic_parse_ugee_v2_desc, uclogic_parse_ugee_v2_desc_cases,
uclogic_parse_ugee_v2_desc_case_desc);
static void hid_test_uclogic_parse_ugee_v2_desc(struct kunit *test)
{
int res;
s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
enum uclogic_params_frame_type frame_type;
const struct uclogic_parse_ugee_v2_desc_case *params = test->param_value;
res = uclogic_params_parse_ugee_v2_desc(params->str_desc,
params->str_desc_size,
desc_params,
ARRAY_SIZE(desc_params),
&frame_type);
KUNIT_ASSERT_EQ(test, res, params->res);
if (res)
return;
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM],
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM]);
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM],
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM]);
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM],
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM]);
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM],
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM]);
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM],
desc_params[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM]);
KUNIT_EXPECT_EQ(test,
params->desc_params[UCLOGIC_RDESC_FRAME_PH_ID_UM],
desc_params[UCLOGIC_RDESC_FRAME_PH_ID_UM]);
KUNIT_EXPECT_EQ(test, params->frame_type, frame_type);
}
static void hid_test_uclogic_params_cleanup_event_hooks(struct kunit *test)
{
int res, n;
struct uclogic_params p = {0, };
res = uclogic_params_ugee_v2_init_event_hooks(NULL, &p);
KUNIT_ASSERT_EQ(test, res, 0);
/* Check that the function can be called repeatedly */
for (n = 0; n < 4; n++) {
uclogic_params_cleanup_event_hooks(&p);
KUNIT_EXPECT_PTR_EQ(test, p.event_hooks, NULL);
}
}
static struct kunit_case hid_uclogic_params_test_cases[] = {
KUNIT_CASE_PARAM(hid_test_uclogic_parse_ugee_v2_desc,
uclogic_parse_ugee_v2_desc_gen_params),
KUNIT_CASE(hid_test_uclogic_params_cleanup_event_hooks),
{}
};
static struct kunit_suite hid_uclogic_params_test_suite = {
.name = "hid_uclogic_params_test",
.test_cases = hid_uclogic_params_test_cases,
};
kunit_test_suite(hid_uclogic_params_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-params-test.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* HID driver for UC-Logic devices not fully compliant with HID standard
* - tablet initialization and parameter retrieval
*
* Copyright (c) 2018 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 "hid-uclogic-params.h"
#include "hid-uclogic-rdesc.h"
#include "usbhid/usbhid.h"
#include "hid-ids.h"
#include <linux/ctype.h>
#include <linux/string.h>
#include <asm/unaligned.h>
/**
* uclogic_params_pen_inrange_to_str() - Convert a pen in-range reporting type
* to a string.
* @inrange: The in-range reporting type to convert.
*
* Return:
* * The string representing the type, or
* * %NULL if the type is unknown.
*/
static const char *uclogic_params_pen_inrange_to_str(
enum uclogic_params_pen_inrange inrange)
{
switch (inrange) {
case UCLOGIC_PARAMS_PEN_INRANGE_NORMAL:
return "normal";
case UCLOGIC_PARAMS_PEN_INRANGE_INVERTED:
return "inverted";
case UCLOGIC_PARAMS_PEN_INRANGE_NONE:
return "none";
default:
return NULL;
}
}
/**
* uclogic_params_pen_hid_dbg() - Dump tablet interface pen parameters
* @hdev: The HID device the pen parameters describe.
* @pen: The pen parameters to dump.
*
* Dump tablet interface pen parameters with hid_dbg(). The dump is indented
* with a tab.
*/
static void uclogic_params_pen_hid_dbg(const struct hid_device *hdev,
const struct uclogic_params_pen *pen)
{
size_t i;
hid_dbg(hdev, "\t.usage_invalid = %s\n",
(pen->usage_invalid ? "true" : "false"));
hid_dbg(hdev, "\t.desc_ptr = %p\n", pen->desc_ptr);
hid_dbg(hdev, "\t.desc_size = %u\n", pen->desc_size);
hid_dbg(hdev, "\t.id = %u\n", pen->id);
hid_dbg(hdev, "\t.subreport_list = {\n");
for (i = 0; i < ARRAY_SIZE(pen->subreport_list); i++) {
hid_dbg(hdev, "\t\t{0x%02hhx, %hhu}%s\n",
pen->subreport_list[i].value,
pen->subreport_list[i].id,
i < (ARRAY_SIZE(pen->subreport_list) - 1) ? "," : "");
}
hid_dbg(hdev, "\t}\n");
hid_dbg(hdev, "\t.inrange = %s\n",
uclogic_params_pen_inrange_to_str(pen->inrange));
hid_dbg(hdev, "\t.fragmented_hires = %s\n",
(pen->fragmented_hires ? "true" : "false"));
hid_dbg(hdev, "\t.tilt_y_flipped = %s\n",
(pen->tilt_y_flipped ? "true" : "false"));
}
/**
* uclogic_params_frame_hid_dbg() - Dump tablet interface frame parameters
* @hdev: The HID device the pen parameters describe.
* @frame: The frame parameters to dump.
*
* Dump tablet interface frame parameters with hid_dbg(). The dump is
* indented with two tabs.
*/
static void uclogic_params_frame_hid_dbg(
const struct hid_device *hdev,
const struct uclogic_params_frame *frame)
{
hid_dbg(hdev, "\t\t.desc_ptr = %p\n", frame->desc_ptr);
hid_dbg(hdev, "\t\t.desc_size = %u\n", frame->desc_size);
hid_dbg(hdev, "\t\t.id = %u\n", frame->id);
hid_dbg(hdev, "\t\t.suffix = %s\n", frame->suffix);
hid_dbg(hdev, "\t\t.re_lsb = %u\n", frame->re_lsb);
hid_dbg(hdev, "\t\t.dev_id_byte = %u\n", frame->dev_id_byte);
hid_dbg(hdev, "\t\t.touch_byte = %u\n", frame->touch_byte);
hid_dbg(hdev, "\t\t.touch_max = %hhd\n", frame->touch_max);
hid_dbg(hdev, "\t\t.touch_flip_at = %hhd\n",
frame->touch_flip_at);
hid_dbg(hdev, "\t\t.bitmap_dial_byte = %u\n",
frame->bitmap_dial_byte);
}
/**
* uclogic_params_hid_dbg() - Dump tablet interface parameters
* @hdev: The HID device the parameters describe.
* @params: The parameters to dump.
*
* Dump tablet interface parameters with hid_dbg().
*/
void uclogic_params_hid_dbg(const struct hid_device *hdev,
const struct uclogic_params *params)
{
size_t i;
hid_dbg(hdev, ".invalid = %s\n",
params->invalid ? "true" : "false");
hid_dbg(hdev, ".desc_ptr = %p\n", params->desc_ptr);
hid_dbg(hdev, ".desc_size = %u\n", params->desc_size);
hid_dbg(hdev, ".pen = {\n");
uclogic_params_pen_hid_dbg(hdev, ¶ms->pen);
hid_dbg(hdev, "\t}\n");
hid_dbg(hdev, ".frame_list = {\n");
for (i = 0; i < ARRAY_SIZE(params->frame_list); i++) {
hid_dbg(hdev, "\t{\n");
uclogic_params_frame_hid_dbg(hdev, ¶ms->frame_list[i]);
hid_dbg(hdev, "\t}%s\n",
i < (ARRAY_SIZE(params->frame_list) - 1) ? "," : "");
}
hid_dbg(hdev, "}\n");
}
/**
* uclogic_params_get_str_desc - retrieve a string descriptor from a HID
* device interface, putting it into a kmalloc-allocated buffer as is, without
* character encoding conversion.
*
* @pbuf: Location for the kmalloc-allocated buffer pointer containing
* the retrieved descriptor. Not modified in case of error.
* Can be NULL to have retrieved descriptor discarded.
* @hdev: The HID device of the tablet interface to retrieve the string
* descriptor from. Cannot be NULL.
* @idx: Index of the string descriptor to request from the device.
* @len: Length of the buffer to allocate and the data to retrieve.
*
* Returns:
* number of bytes retrieved (<= len),
* -EPIPE, if the descriptor was not found, or
* another negative errno code in case of other error.
*/
static int uclogic_params_get_str_desc(__u8 **pbuf, struct hid_device *hdev,
__u8 idx, size_t len)
{
int rc;
struct usb_device *udev;
__u8 *buf = NULL;
/* Check arguments */
if (hdev == NULL) {
rc = -EINVAL;
goto cleanup;
}
udev = hid_to_usb_dev(hdev);
buf = kmalloc(len, GFP_KERNEL);
if (buf == NULL) {
rc = -ENOMEM;
goto cleanup;
}
rc = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
(USB_DT_STRING << 8) + idx,
0x0409, buf, len,
USB_CTRL_GET_TIMEOUT);
if (rc == -EPIPE) {
hid_dbg(hdev, "string descriptor #%hhu not found\n", idx);
goto cleanup;
} else if (rc < 0) {
hid_err(hdev,
"failed retrieving string descriptor #%u: %d\n",
idx, rc);
goto cleanup;
}
if (pbuf != NULL) {
*pbuf = buf;
buf = NULL;
}
cleanup:
kfree(buf);
return rc;
}
/**
* uclogic_params_pen_cleanup - free resources used by struct
* uclogic_params_pen (tablet interface's pen input parameters).
* Can be called repeatedly.
*
* @pen: Pen input parameters to cleanup. Cannot be NULL.
*/
static void uclogic_params_pen_cleanup(struct uclogic_params_pen *pen)
{
kfree(pen->desc_ptr);
memset(pen, 0, sizeof(*pen));
}
/**
* uclogic_params_pen_init_v1() - initialize tablet interface pen
* input and retrieve its parameters from the device, using v1 protocol.
*
* @pen: Pointer to the pen parameters to initialize (to be
* cleaned up with uclogic_params_pen_cleanup()). Not modified in
* case of error, or if parameters are not found. Cannot be NULL.
* @pfound: Location for a flag which is set to true if the parameters
* were found, and to false if not (e.g. device was
* incompatible). Not modified in case of error. Cannot be NULL.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_pen_init_v1(struct uclogic_params_pen *pen,
bool *pfound,
struct hid_device *hdev)
{
int rc;
bool found = false;
/* Buffer for (part of) the string descriptor */
__u8 *buf = NULL;
/* Minimum descriptor length required, maximum seen so far is 18 */
const int len = 12;
s32 resolution;
/* Pen report descriptor template parameters */
s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
__u8 *desc_ptr = NULL;
/* Check arguments */
if (pen == NULL || pfound == NULL || hdev == NULL) {
rc = -EINVAL;
goto cleanup;
}
/*
* Read string descriptor containing pen input parameters.
* The specific string descriptor and data were discovered by sniffing
* the Windows driver traffic.
* NOTE: This enables fully-functional tablet mode.
*/
rc = uclogic_params_get_str_desc(&buf, hdev, 100, len);
if (rc == -EPIPE) {
hid_dbg(hdev,
"string descriptor with pen parameters not found, assuming not compatible\n");
goto finish;
} else if (rc < 0) {
hid_err(hdev, "failed retrieving pen parameters: %d\n", rc);
goto cleanup;
} else if (rc != len) {
hid_dbg(hdev,
"string descriptor with pen parameters has invalid length (got %d, expected %d), assuming not compatible\n",
rc, len);
goto finish;
}
/*
* Fill report descriptor parameters from the string descriptor
*/
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM] =
get_unaligned_le16(buf + 2);
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] =
get_unaligned_le16(buf + 4);
desc_params[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] =
get_unaligned_le16(buf + 8);
resolution = get_unaligned_le16(buf + 10);
if (resolution == 0) {
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0;
} else {
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM] =
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM] * 1000 /
resolution;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] =
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] * 1000 /
resolution;
}
kfree(buf);
buf = NULL;
/*
* Generate pen report descriptor
*/
desc_ptr = uclogic_rdesc_template_apply(
uclogic_rdesc_v1_pen_template_arr,
uclogic_rdesc_v1_pen_template_size,
desc_params, ARRAY_SIZE(desc_params));
if (desc_ptr == NULL) {
rc = -ENOMEM;
goto cleanup;
}
/*
* Fill-in the parameters
*/
memset(pen, 0, sizeof(*pen));
pen->desc_ptr = desc_ptr;
desc_ptr = NULL;
pen->desc_size = uclogic_rdesc_v1_pen_template_size;
pen->id = UCLOGIC_RDESC_V1_PEN_ID;
pen->inrange = UCLOGIC_PARAMS_PEN_INRANGE_INVERTED;
found = true;
finish:
*pfound = found;
rc = 0;
cleanup:
kfree(desc_ptr);
kfree(buf);
return rc;
}
/**
* uclogic_params_get_le24() - get a 24-bit little-endian number from a
* buffer.
*
* @p: The pointer to the number buffer.
*
* Returns:
* The retrieved number
*/
static s32 uclogic_params_get_le24(const void *p)
{
const __u8 *b = p;
return b[0] | (b[1] << 8UL) | (b[2] << 16UL);
}
/**
* uclogic_params_pen_init_v2() - initialize tablet interface pen
* input and retrieve its parameters from the device, using v2 protocol.
*
* @pen: Pointer to the pen parameters to initialize (to be
* cleaned up with uclogic_params_pen_cleanup()). Not
* modified in case of error, or if parameters are not
* found. Cannot be NULL.
* @pfound: Location for a flag which is set to true if the
* parameters were found, and to false if not (e.g.
* device was incompatible). Not modified in case of
* error. Cannot be NULL.
* @pparams_ptr: Location for a kmalloc'ed pointer to the retrieved raw
* parameters, which could be used to identify the tablet
* to some extent. Should be freed with kfree after use.
* NULL, if not needed. Not modified in case of error.
* Only set if *pfound is set to true.
* @pparams_len: Location for the length of the retrieved raw
* parameters. NULL, if not needed. Not modified in case
* of error. Only set if *pfound is set to true.
* @hdev: The HID device of the tablet interface to initialize
* and get parameters from. Cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_pen_init_v2(struct uclogic_params_pen *pen,
bool *pfound,
__u8 **pparams_ptr,
size_t *pparams_len,
struct hid_device *hdev)
{
int rc;
bool found = false;
/* Buffer for (part of) the parameter string descriptor */
__u8 *buf = NULL;
/* Parameter string descriptor required length */
const int params_len_min = 18;
/* Parameter string descriptor accepted length */
const int params_len_max = 32;
/* Parameter string descriptor received length */
int params_len;
size_t i;
s32 resolution;
/* Pen report descriptor template parameters */
s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
__u8 *desc_ptr = NULL;
/* Check arguments */
if (pen == NULL || pfound == NULL || hdev == NULL) {
rc = -EINVAL;
goto cleanup;
}
/*
* Read string descriptor containing pen input parameters.
* The specific string descriptor and data were discovered by sniffing
* the Windows driver traffic.
* NOTE: This enables fully-functional tablet mode.
*/
rc = uclogic_params_get_str_desc(&buf, hdev, 200, params_len_max);
if (rc == -EPIPE) {
hid_dbg(hdev,
"string descriptor with pen parameters not found, assuming not compatible\n");
goto finish;
} else if (rc < 0) {
hid_err(hdev, "failed retrieving pen parameters: %d\n", rc);
goto cleanup;
} else if (rc < params_len_min) {
hid_dbg(hdev,
"string descriptor with pen parameters is too short (got %d, expected at least %d), assuming not compatible\n",
rc, params_len_min);
goto finish;
}
params_len = rc;
/*
* Check it's not just a catch-all UTF-16LE-encoded ASCII
* string (such as the model name) some tablets put into all
* unknown string descriptors.
*/
for (i = 2;
i < params_len &&
(buf[i] >= 0x20 && buf[i] < 0x7f && buf[i + 1] == 0);
i += 2);
if (i >= params_len) {
hid_dbg(hdev,
"string descriptor with pen parameters seems to contain only text, assuming not compatible\n");
goto finish;
}
/*
* Fill report descriptor parameters from the string descriptor
*/
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM] =
uclogic_params_get_le24(buf + 2);
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] =
uclogic_params_get_le24(buf + 5);
desc_params[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] =
get_unaligned_le16(buf + 8);
resolution = get_unaligned_le16(buf + 10);
if (resolution == 0) {
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = 0;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = 0;
} else {
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM] =
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM] * 1000 /
resolution;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] =
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] * 1000 /
resolution;
}
/*
* Generate pen report descriptor
*/
desc_ptr = uclogic_rdesc_template_apply(
uclogic_rdesc_v2_pen_template_arr,
uclogic_rdesc_v2_pen_template_size,
desc_params, ARRAY_SIZE(desc_params));
if (desc_ptr == NULL) {
rc = -ENOMEM;
goto cleanup;
}
/*
* Fill-in the parameters
*/
memset(pen, 0, sizeof(*pen));
pen->desc_ptr = desc_ptr;
desc_ptr = NULL;
pen->desc_size = uclogic_rdesc_v2_pen_template_size;
pen->id = UCLOGIC_RDESC_V2_PEN_ID;
pen->inrange = UCLOGIC_PARAMS_PEN_INRANGE_NONE;
pen->fragmented_hires = true;
pen->tilt_y_flipped = true;
found = true;
if (pparams_ptr != NULL) {
*pparams_ptr = buf;
buf = NULL;
}
if (pparams_len != NULL)
*pparams_len = params_len;
finish:
*pfound = found;
rc = 0;
cleanup:
kfree(desc_ptr);
kfree(buf);
return rc;
}
/**
* uclogic_params_frame_cleanup - free resources used by struct
* uclogic_params_frame (tablet interface's frame controls input parameters).
* Can be called repeatedly.
*
* @frame: Frame controls input parameters to cleanup. Cannot be NULL.
*/
static void uclogic_params_frame_cleanup(struct uclogic_params_frame *frame)
{
kfree(frame->desc_ptr);
memset(frame, 0, sizeof(*frame));
}
/**
* uclogic_params_frame_init_with_desc() - initialize tablet's frame control
* parameters with a static report descriptor.
*
* @frame: Pointer to the frame parameters to initialize (to be cleaned
* up with uclogic_params_frame_cleanup()). Not modified in case
* of error. Cannot be NULL.
* @desc_ptr: Report descriptor pointer. Can be NULL, if desc_size is zero.
* @desc_size: Report descriptor size.
* @id: Report ID used for frame reports, if they should be tweaked,
* zero if not.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_frame_init_with_desc(
struct uclogic_params_frame *frame,
const __u8 *desc_ptr,
size_t desc_size,
unsigned int id)
{
__u8 *copy_desc_ptr;
if (frame == NULL || (desc_ptr == NULL && desc_size != 0))
return -EINVAL;
copy_desc_ptr = kmemdup(desc_ptr, desc_size, GFP_KERNEL);
if (copy_desc_ptr == NULL)
return -ENOMEM;
memset(frame, 0, sizeof(*frame));
frame->desc_ptr = copy_desc_ptr;
frame->desc_size = desc_size;
frame->id = id;
return 0;
}
/**
* uclogic_params_frame_init_v1() - initialize v1 tablet interface frame
* controls.
*
* @frame: Pointer to the frame parameters to initialize (to be cleaned
* up with uclogic_params_frame_cleanup()). Not modified in case
* of error, or if parameters are not found. Cannot be NULL.
* @pfound: Location for a flag which is set to true if the parameters
* were found, and to false if not (e.g. device was
* incompatible). Not modified in case of error. Cannot be NULL.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_frame_init_v1(struct uclogic_params_frame *frame,
bool *pfound,
struct hid_device *hdev)
{
int rc;
bool found = false;
struct usb_device *usb_dev;
char *str_buf = NULL;
const size_t str_len = 16;
/* Check arguments */
if (frame == NULL || pfound == NULL || hdev == NULL) {
rc = -EINVAL;
goto cleanup;
}
usb_dev = hid_to_usb_dev(hdev);
/*
* Enable generic button mode
*/
str_buf = kzalloc(str_len, GFP_KERNEL);
if (str_buf == NULL) {
rc = -ENOMEM;
goto cleanup;
}
rc = usb_string(usb_dev, 123, str_buf, str_len);
if (rc == -EPIPE) {
hid_dbg(hdev,
"generic button -enabling string descriptor not found\n");
} else if (rc < 0) {
goto cleanup;
} else if (strncmp(str_buf, "HK On", rc) != 0) {
hid_dbg(hdev,
"invalid response to enabling generic buttons: \"%s\"\n",
str_buf);
} else {
hid_dbg(hdev, "generic buttons enabled\n");
rc = uclogic_params_frame_init_with_desc(
frame,
uclogic_rdesc_v1_frame_arr,
uclogic_rdesc_v1_frame_size,
UCLOGIC_RDESC_V1_FRAME_ID);
if (rc != 0)
goto cleanup;
found = true;
}
*pfound = found;
rc = 0;
cleanup:
kfree(str_buf);
return rc;
}
/**
* uclogic_params_cleanup_event_hooks - free resources used by the list of raw
* event hooks.
* Can be called repeatedly.
*
* @params: Input parameters to cleanup. Cannot be NULL.
*/
static void uclogic_params_cleanup_event_hooks(struct uclogic_params *params)
{
struct uclogic_raw_event_hook *curr, *n;
if (!params || !params->event_hooks)
return;
list_for_each_entry_safe(curr, n, ¶ms->event_hooks->list, list) {
cancel_work_sync(&curr->work);
list_del(&curr->list);
kfree(curr->event);
kfree(curr);
}
kfree(params->event_hooks);
params->event_hooks = NULL;
}
/**
* uclogic_params_cleanup - free resources used by struct uclogic_params
* (tablet interface's parameters).
* Can be called repeatedly.
*
* @params: Input parameters to cleanup. Cannot be NULL.
*/
void uclogic_params_cleanup(struct uclogic_params *params)
{
if (!params->invalid) {
size_t i;
kfree(params->desc_ptr);
uclogic_params_pen_cleanup(¶ms->pen);
for (i = 0; i < ARRAY_SIZE(params->frame_list); i++)
uclogic_params_frame_cleanup(¶ms->frame_list[i]);
uclogic_params_cleanup_event_hooks(params);
memset(params, 0, sizeof(*params));
}
}
/**
* uclogic_params_get_desc() - Get a replacement report descriptor for a
* tablet's interface.
*
* @params: The parameters of a tablet interface to get report
* descriptor for. Cannot be NULL.
* @pdesc: Location for the resulting, kmalloc-allocated report
* descriptor pointer, or for NULL, if there's no replacement
* report descriptor. Not modified in case of error. Cannot be
* NULL.
* @psize: Location for the resulting report descriptor size, not set if
* there's no replacement report descriptor. Not modified in case
* of error. Cannot be NULL.
*
* Returns:
* Zero, if successful.
* -EINVAL, if invalid arguments are supplied.
* -ENOMEM, if failed to allocate memory.
*/
int uclogic_params_get_desc(const struct uclogic_params *params,
__u8 **pdesc,
unsigned int *psize)
{
int rc = -ENOMEM;
bool present = false;
unsigned int size = 0;
__u8 *desc = NULL;
size_t i;
/* Check arguments */
if (params == NULL || pdesc == NULL || psize == NULL)
return -EINVAL;
/* Concatenate descriptors */
#define ADD_DESC(_desc_ptr, _desc_size) \
do { \
unsigned int new_size; \
__u8 *new_desc; \
if ((_desc_ptr) == NULL) { \
break; \
} \
new_size = size + (_desc_size); \
new_desc = krealloc(desc, new_size, GFP_KERNEL); \
if (new_desc == NULL) { \
goto cleanup; \
} \
memcpy(new_desc + size, (_desc_ptr), (_desc_size)); \
desc = new_desc; \
size = new_size; \
present = true; \
} while (0)
ADD_DESC(params->desc_ptr, params->desc_size);
ADD_DESC(params->pen.desc_ptr, params->pen.desc_size);
for (i = 0; i < ARRAY_SIZE(params->frame_list); i++) {
ADD_DESC(params->frame_list[i].desc_ptr,
params->frame_list[i].desc_size);
}
#undef ADD_DESC
if (present) {
*pdesc = desc;
*psize = size;
desc = NULL;
}
rc = 0;
cleanup:
kfree(desc);
return rc;
}
/**
* uclogic_params_init_invalid() - initialize tablet interface parameters,
* specifying the interface is invalid.
*
* @params: Parameters to initialize (to be cleaned with
* uclogic_params_cleanup()). Cannot be NULL.
*/
static void uclogic_params_init_invalid(struct uclogic_params *params)
{
params->invalid = true;
}
/**
* uclogic_params_init_with_opt_desc() - initialize tablet interface
* parameters with an optional replacement report descriptor. Only modify
* report descriptor, if the original report descriptor matches the expected
* size.
*
* @params: Parameters to initialize (to be cleaned with
* uclogic_params_cleanup()). Not modified in case of
* error. Cannot be NULL.
* @hdev: The HID device of the tablet interface create the
* parameters for. Cannot be NULL.
* @orig_desc_size: Expected size of the original report descriptor to
* be replaced.
* @desc_ptr: Pointer to the replacement report descriptor.
* Can be NULL, if desc_size is zero.
* @desc_size: Size of the replacement report descriptor.
*
* Returns:
* Zero, if successful. -EINVAL if an invalid argument was passed.
* -ENOMEM, if failed to allocate memory.
*/
static int uclogic_params_init_with_opt_desc(struct uclogic_params *params,
struct hid_device *hdev,
unsigned int orig_desc_size,
__u8 *desc_ptr,
unsigned int desc_size)
{
__u8 *desc_copy_ptr = NULL;
unsigned int desc_copy_size;
int rc;
/* Check arguments */
if (params == NULL || hdev == NULL ||
(desc_ptr == NULL && desc_size != 0)) {
rc = -EINVAL;
goto cleanup;
}
/* Replace report descriptor, if it matches */
if (hdev->dev_rsize == orig_desc_size) {
hid_dbg(hdev,
"device report descriptor matches the expected size, replacing\n");
desc_copy_ptr = kmemdup(desc_ptr, desc_size, GFP_KERNEL);
if (desc_copy_ptr == NULL) {
rc = -ENOMEM;
goto cleanup;
}
desc_copy_size = desc_size;
} else {
hid_dbg(hdev,
"device report descriptor doesn't match the expected size (%u != %u), preserving\n",
hdev->dev_rsize, orig_desc_size);
desc_copy_ptr = NULL;
desc_copy_size = 0;
}
/* Output parameters */
memset(params, 0, sizeof(*params));
params->desc_ptr = desc_copy_ptr;
desc_copy_ptr = NULL;
params->desc_size = desc_copy_size;
rc = 0;
cleanup:
kfree(desc_copy_ptr);
return rc;
}
/**
* uclogic_params_huion_init() - initialize a Huion tablet interface and discover
* its parameters.
*
* @params: Parameters to fill in (to be cleaned with
* uclogic_params_cleanup()). Not modified in case of error.
* Cannot be NULL.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_huion_init(struct uclogic_params *params,
struct hid_device *hdev)
{
int rc;
struct usb_device *udev;
struct usb_interface *iface;
__u8 bInterfaceNumber;
bool found;
/* The resulting parameters (noop) */
struct uclogic_params p = {0, };
static const char transition_ver[] = "HUION_T153_160607";
char *ver_ptr = NULL;
const size_t ver_len = sizeof(transition_ver) + 1;
__u8 *params_ptr = NULL;
size_t params_len = 0;
/* Parameters string descriptor of a model with touch ring (HS610) */
const __u8 touch_ring_model_params_buf[] = {
0x13, 0x03, 0x70, 0xC6, 0x00, 0x06, 0x7C, 0x00,
0xFF, 0x1F, 0xD8, 0x13, 0x03, 0x0D, 0x10, 0x01,
0x04, 0x3C, 0x3E
};
/* Check arguments */
if (params == NULL || hdev == NULL) {
rc = -EINVAL;
goto cleanup;
}
udev = hid_to_usb_dev(hdev);
iface = to_usb_interface(hdev->dev.parent);
bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
/* If it's a custom keyboard interface */
if (bInterfaceNumber == 1) {
/* Keep everything intact, but mark pen usage invalid */
p.pen.usage_invalid = true;
goto output;
/* Else, if it's not a pen interface */
} else if (bInterfaceNumber != 0) {
uclogic_params_init_invalid(&p);
goto output;
}
/* Try to get firmware version */
ver_ptr = kzalloc(ver_len, GFP_KERNEL);
if (ver_ptr == NULL) {
rc = -ENOMEM;
goto cleanup;
}
rc = usb_string(udev, 201, ver_ptr, ver_len);
if (rc == -EPIPE) {
*ver_ptr = '\0';
} else if (rc < 0) {
hid_err(hdev,
"failed retrieving Huion firmware version: %d\n", rc);
goto cleanup;
}
/* If this is a transition firmware */
if (strcmp(ver_ptr, transition_ver) == 0) {
hid_dbg(hdev,
"transition firmware detected, not probing pen v2 parameters\n");
} else {
/* Try to probe v2 pen parameters */
rc = uclogic_params_pen_init_v2(&p.pen, &found,
¶ms_ptr, ¶ms_len,
hdev);
if (rc != 0) {
hid_err(hdev,
"failed probing pen v2 parameters: %d\n", rc);
goto cleanup;
} else if (found) {
hid_dbg(hdev, "pen v2 parameters found\n");
/* Create v2 frame button parameters */
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[0],
uclogic_rdesc_v2_frame_buttons_arr,
uclogic_rdesc_v2_frame_buttons_size,
UCLOGIC_RDESC_V2_FRAME_BUTTONS_ID);
if (rc != 0) {
hid_err(hdev,
"failed creating v2 frame button parameters: %d\n",
rc);
goto cleanup;
}
/* Link from pen sub-report */
p.pen.subreport_list[0].value = 0xe0;
p.pen.subreport_list[0].id =
UCLOGIC_RDESC_V2_FRAME_BUTTONS_ID;
/* If this is the model with touch ring */
if (params_ptr != NULL &&
params_len == sizeof(touch_ring_model_params_buf) &&
memcmp(params_ptr, touch_ring_model_params_buf,
params_len) == 0) {
/* Create touch ring parameters */
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[1],
uclogic_rdesc_v2_frame_touch_ring_arr,
uclogic_rdesc_v2_frame_touch_ring_size,
UCLOGIC_RDESC_V2_FRAME_TOUCH_ID);
if (rc != 0) {
hid_err(hdev,
"failed creating v2 frame touch ring parameters: %d\n",
rc);
goto cleanup;
}
p.frame_list[1].suffix = "Touch Ring";
p.frame_list[1].dev_id_byte =
UCLOGIC_RDESC_V2_FRAME_TOUCH_DEV_ID_BYTE;
p.frame_list[1].touch_byte = 5;
p.frame_list[1].touch_max = 12;
p.frame_list[1].touch_flip_at = 7;
} else {
/* Create touch strip parameters */
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[1],
uclogic_rdesc_v2_frame_touch_strip_arr,
uclogic_rdesc_v2_frame_touch_strip_size,
UCLOGIC_RDESC_V2_FRAME_TOUCH_ID);
if (rc != 0) {
hid_err(hdev,
"failed creating v2 frame touch strip parameters: %d\n",
rc);
goto cleanup;
}
p.frame_list[1].suffix = "Touch Strip";
p.frame_list[1].dev_id_byte =
UCLOGIC_RDESC_V2_FRAME_TOUCH_DEV_ID_BYTE;
p.frame_list[1].touch_byte = 5;
p.frame_list[1].touch_max = 8;
}
/* Link from pen sub-report */
p.pen.subreport_list[1].value = 0xf0;
p.pen.subreport_list[1].id =
UCLOGIC_RDESC_V2_FRAME_TOUCH_ID;
/* Create v2 frame dial parameters */
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[2],
uclogic_rdesc_v2_frame_dial_arr,
uclogic_rdesc_v2_frame_dial_size,
UCLOGIC_RDESC_V2_FRAME_DIAL_ID);
if (rc != 0) {
hid_err(hdev,
"failed creating v2 frame dial parameters: %d\n",
rc);
goto cleanup;
}
p.frame_list[2].suffix = "Dial";
p.frame_list[2].dev_id_byte =
UCLOGIC_RDESC_V2_FRAME_DIAL_DEV_ID_BYTE;
p.frame_list[2].bitmap_dial_byte = 5;
/* Link from pen sub-report */
p.pen.subreport_list[2].value = 0xf1;
p.pen.subreport_list[2].id =
UCLOGIC_RDESC_V2_FRAME_DIAL_ID;
goto output;
}
hid_dbg(hdev, "pen v2 parameters not found\n");
}
/* Try to probe v1 pen parameters */
rc = uclogic_params_pen_init_v1(&p.pen, &found, hdev);
if (rc != 0) {
hid_err(hdev,
"failed probing pen v1 parameters: %d\n", rc);
goto cleanup;
} else if (found) {
hid_dbg(hdev, "pen v1 parameters found\n");
/* Try to probe v1 frame */
rc = uclogic_params_frame_init_v1(&p.frame_list[0],
&found, hdev);
if (rc != 0) {
hid_err(hdev, "v1 frame probing failed: %d\n", rc);
goto cleanup;
}
hid_dbg(hdev, "frame v1 parameters%s found\n",
(found ? "" : " not"));
if (found) {
/* Link frame button subreports from pen reports */
p.pen.subreport_list[0].value = 0xe0;
p.pen.subreport_list[0].id =
UCLOGIC_RDESC_V1_FRAME_ID;
}
goto output;
}
hid_dbg(hdev, "pen v1 parameters not found\n");
uclogic_params_init_invalid(&p);
output:
/* Output parameters */
memcpy(params, &p, sizeof(*params));
memset(&p, 0, sizeof(p));
rc = 0;
cleanup:
kfree(params_ptr);
kfree(ver_ptr);
uclogic_params_cleanup(&p);
return rc;
}
/**
* uclogic_probe_interface() - some tablets, like the Parblo A610 PLUS V2 or
* the XP-PEN Deco Mini 7, need to be initialized by sending them magic data.
*
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL.
* @magic_arr: The magic data that should be sent to probe the interface.
* Cannot be NULL.
* @magic_size: Size of the magic data.
* @endpoint: Endpoint where the magic data should be sent.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_probe_interface(struct hid_device *hdev, const u8 *magic_arr,
size_t magic_size, int endpoint)
{
struct usb_device *udev;
unsigned int pipe = 0;
int sent;
u8 *buf = NULL;
int rc = 0;
if (!hdev || !magic_arr) {
rc = -EINVAL;
goto cleanup;
}
buf = kmemdup(magic_arr, magic_size, GFP_KERNEL);
if (!buf) {
rc = -ENOMEM;
goto cleanup;
}
udev = hid_to_usb_dev(hdev);
pipe = usb_sndintpipe(udev, endpoint);
rc = usb_interrupt_msg(udev, pipe, buf, magic_size, &sent, 1000);
if (rc || sent != magic_size) {
hid_err(hdev, "Interface probing failed: %d\n", rc);
rc = -1;
goto cleanup;
}
rc = 0;
cleanup:
kfree(buf);
return rc;
}
/**
* uclogic_params_parse_ugee_v2_desc - parse the string descriptor containing
* pen and frame parameters returned by UGEE v2 devices.
*
* @str_desc: String descriptor, cannot be NULL.
* @str_desc_size: Size of the string descriptor.
* @desc_params: Output description params list.
* @desc_params_size: Size of the output description params list.
* @frame_type: Output frame type.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_parse_ugee_v2_desc(const __u8 *str_desc,
size_t str_desc_size,
s32 *desc_params,
size_t desc_params_size,
enum uclogic_params_frame_type *frame_type)
{
s32 pen_x_lm, pen_y_lm;
s32 pen_x_pm, pen_y_pm;
s32 pen_pressure_lm;
s32 frame_num_buttons;
s32 resolution;
/* Minimum descriptor length required, maximum seen so far is 14 */
const int min_str_desc_size = 12;
if (!str_desc || str_desc_size < min_str_desc_size)
return -EINVAL;
if (desc_params_size != UCLOGIC_RDESC_PH_ID_NUM)
return -EINVAL;
pen_x_lm = get_unaligned_le16(str_desc + 2);
pen_y_lm = get_unaligned_le16(str_desc + 4);
frame_num_buttons = str_desc[6];
*frame_type = str_desc[7];
pen_pressure_lm = get_unaligned_le16(str_desc + 8);
resolution = get_unaligned_le16(str_desc + 10);
if (resolution == 0) {
pen_x_pm = 0;
pen_y_pm = 0;
} else {
pen_x_pm = pen_x_lm * 1000 / resolution;
pen_y_pm = pen_y_lm * 1000 / resolution;
}
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_LM] = pen_x_lm;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_X_PM] = pen_x_pm;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_LM] = pen_y_lm;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_Y_PM] = pen_y_pm;
desc_params[UCLOGIC_RDESC_PEN_PH_ID_PRESSURE_LM] = pen_pressure_lm;
desc_params[UCLOGIC_RDESC_FRAME_PH_ID_UM] = frame_num_buttons;
return 0;
}
/**
* uclogic_params_ugee_v2_init_frame_buttons() - initialize a UGEE v2 frame with
* buttons.
* @p: Parameters to fill in, cannot be NULL.
* @desc_params: Device description params list.
* @desc_params_size: Size of the description params list.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init_frame_buttons(struct uclogic_params *p,
const s32 *desc_params,
size_t desc_params_size)
{
__u8 *rdesc_frame = NULL;
int rc = 0;
if (!p || desc_params_size != UCLOGIC_RDESC_PH_ID_NUM)
return -EINVAL;
rdesc_frame = uclogic_rdesc_template_apply(
uclogic_rdesc_ugee_v2_frame_btn_template_arr,
uclogic_rdesc_ugee_v2_frame_btn_template_size,
desc_params, UCLOGIC_RDESC_PH_ID_NUM);
if (!rdesc_frame)
return -ENOMEM;
rc = uclogic_params_frame_init_with_desc(&p->frame_list[0],
rdesc_frame,
uclogic_rdesc_ugee_v2_frame_btn_template_size,
UCLOGIC_RDESC_V1_FRAME_ID);
kfree(rdesc_frame);
return rc;
}
/**
* uclogic_params_ugee_v2_init_frame_dial() - initialize a UGEE v2 frame with a
* bitmap dial.
* @p: Parameters to fill in, cannot be NULL.
* @desc_params: Device description params list.
* @desc_params_size: Size of the description params list.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init_frame_dial(struct uclogic_params *p,
const s32 *desc_params,
size_t desc_params_size)
{
__u8 *rdesc_frame = NULL;
int rc = 0;
if (!p || desc_params_size != UCLOGIC_RDESC_PH_ID_NUM)
return -EINVAL;
rdesc_frame = uclogic_rdesc_template_apply(
uclogic_rdesc_ugee_v2_frame_dial_template_arr,
uclogic_rdesc_ugee_v2_frame_dial_template_size,
desc_params, UCLOGIC_RDESC_PH_ID_NUM);
if (!rdesc_frame)
return -ENOMEM;
rc = uclogic_params_frame_init_with_desc(&p->frame_list[0],
rdesc_frame,
uclogic_rdesc_ugee_v2_frame_dial_template_size,
UCLOGIC_RDESC_V1_FRAME_ID);
kfree(rdesc_frame);
if (rc)
return rc;
p->frame_list[0].bitmap_dial_byte = 7;
return 0;
}
/**
* uclogic_params_ugee_v2_init_frame_mouse() - initialize a UGEE v2 frame with a
* mouse.
* @p: Parameters to fill in, cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init_frame_mouse(struct uclogic_params *p)
{
int rc = 0;
if (!p)
return -EINVAL;
rc = uclogic_params_frame_init_with_desc(&p->frame_list[1],
uclogic_rdesc_ugee_v2_frame_mouse_template_arr,
uclogic_rdesc_ugee_v2_frame_mouse_template_size,
UCLOGIC_RDESC_V1_FRAME_ID);
return rc;
}
/**
* uclogic_params_ugee_v2_has_battery() - check whether a UGEE v2 device has
* battery or not.
* @hdev: The HID device of the tablet interface.
*
* Returns:
* True if the device has battery, false otherwise.
*/
static bool uclogic_params_ugee_v2_has_battery(struct hid_device *hdev)
{
struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & UCLOGIC_BATTERY_QUIRK)
return true;
/* The XP-PEN Deco LW vendor, product and version are identical to the
* Deco L. The only difference reported by their firmware is the product
* name. Add a quirk to support battery reporting on the wireless
* version.
*/
if (hdev->vendor == USB_VENDOR_ID_UGEE &&
hdev->product == USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L) {
struct usb_device *udev = hid_to_usb_dev(hdev);
if (strstarts(udev->product, "Deco LW"))
return true;
}
return false;
}
/**
* uclogic_params_ugee_v2_init_battery() - initialize UGEE v2 battery reporting.
* @hdev: The HID device of the tablet interface, cannot be NULL.
* @p: Parameters to fill in, cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init_battery(struct hid_device *hdev,
struct uclogic_params *p)
{
int rc = 0;
if (!hdev || !p)
return -EINVAL;
/* Some tablets contain invalid characters in hdev->uniq, throwing a
* "hwmon: '<name>' is not a valid name attribute, please fix" error.
* Use the device vendor and product IDs instead.
*/
snprintf(hdev->uniq, sizeof(hdev->uniq), "%x-%x", hdev->vendor,
hdev->product);
rc = uclogic_params_frame_init_with_desc(&p->frame_list[1],
uclogic_rdesc_ugee_v2_battery_template_arr,
uclogic_rdesc_ugee_v2_battery_template_size,
UCLOGIC_RDESC_UGEE_V2_BATTERY_ID);
if (rc)
return rc;
p->frame_list[1].suffix = "Battery";
p->pen.subreport_list[1].value = 0xf2;
p->pen.subreport_list[1].id = UCLOGIC_RDESC_UGEE_V2_BATTERY_ID;
return rc;
}
/**
* uclogic_params_ugee_v2_reconnect_work() - When a wireless tablet looses
* connection to the USB dongle and reconnects, either because of its physical
* distance or because it was switches off and on using the frame's switch,
* uclogic_probe_interface() needs to be called again to enable the tablet.
*
* @work: The work that triggered this function.
*/
static void uclogic_params_ugee_v2_reconnect_work(struct work_struct *work)
{
struct uclogic_raw_event_hook *event_hook;
event_hook = container_of(work, struct uclogic_raw_event_hook, work);
uclogic_probe_interface(event_hook->hdev, uclogic_ugee_v2_probe_arr,
uclogic_ugee_v2_probe_size,
uclogic_ugee_v2_probe_endpoint);
}
/**
* uclogic_params_ugee_v2_init_event_hooks() - initialize the list of events
* to be hooked for UGEE v2 devices.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from.
* @p: Parameters to fill in, cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init_event_hooks(struct hid_device *hdev,
struct uclogic_params *p)
{
struct uclogic_raw_event_hook *event_hook;
__u8 reconnect_event[] = {
/* Event received on wireless tablet reconnection */
0x02, 0xF8, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
if (!p)
return -EINVAL;
/* The reconnection event is only received if the tablet has battery */
if (!uclogic_params_ugee_v2_has_battery(hdev))
return 0;
p->event_hooks = kzalloc(sizeof(*p->event_hooks), GFP_KERNEL);
if (!p->event_hooks)
return -ENOMEM;
INIT_LIST_HEAD(&p->event_hooks->list);
event_hook = kzalloc(sizeof(*event_hook), GFP_KERNEL);
if (!event_hook)
return -ENOMEM;
INIT_WORK(&event_hook->work, uclogic_params_ugee_v2_reconnect_work);
event_hook->hdev = hdev;
event_hook->size = ARRAY_SIZE(reconnect_event);
event_hook->event = kmemdup(reconnect_event, event_hook->size, GFP_KERNEL);
if (!event_hook->event)
return -ENOMEM;
list_add_tail(&event_hook->list, &p->event_hooks->list);
return 0;
}
/**
* uclogic_params_ugee_v2_init() - initialize a UGEE graphics tablets by
* discovering their parameters.
*
* These tables, internally designed as v2 to differentiate them from older
* models, expect a payload of magic data in orther to be switched to the fully
* functional mode and expose their parameters in a similar way to the
* information present in uclogic_params_pen_init_v1() but with some
* differences.
*
* @params: Parameters to fill in (to be cleaned with
* uclogic_params_cleanup()). Not modified in case of error.
* Cannot be NULL.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
static int uclogic_params_ugee_v2_init(struct uclogic_params *params,
struct hid_device *hdev)
{
int rc = 0;
struct uclogic_drvdata *drvdata;
struct usb_interface *iface;
__u8 bInterfaceNumber;
const int str_desc_len = 12;
__u8 *str_desc = NULL;
__u8 *rdesc_pen = NULL;
s32 desc_params[UCLOGIC_RDESC_PH_ID_NUM];
enum uclogic_params_frame_type frame_type;
/* The resulting parameters (noop) */
struct uclogic_params p = {0, };
if (!params || !hdev) {
rc = -EINVAL;
goto cleanup;
}
drvdata = hid_get_drvdata(hdev);
iface = to_usb_interface(hdev->dev.parent);
bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
if (bInterfaceNumber == 0) {
rc = uclogic_params_ugee_v2_init_frame_mouse(&p);
if (rc)
goto cleanup;
goto output;
}
if (bInterfaceNumber != 2) {
uclogic_params_init_invalid(&p);
goto output;
}
/*
* Initialize the interface by sending magic data.
* The specific data was discovered by sniffing the Windows driver
* traffic.
*/
rc = uclogic_probe_interface(hdev, uclogic_ugee_v2_probe_arr,
uclogic_ugee_v2_probe_size,
uclogic_ugee_v2_probe_endpoint);
if (rc) {
uclogic_params_init_invalid(&p);
goto output;
}
/*
* Read the string descriptor containing pen and frame parameters.
* The specific string descriptor and data were discovered by sniffing
* the Windows driver traffic.
*/
rc = uclogic_params_get_str_desc(&str_desc, hdev, 100, str_desc_len);
if (rc != str_desc_len) {
hid_err(hdev, "failed retrieving pen and frame parameters: %d\n", rc);
uclogic_params_init_invalid(&p);
goto output;
}
rc = uclogic_params_parse_ugee_v2_desc(str_desc, str_desc_len,
desc_params,
ARRAY_SIZE(desc_params),
&frame_type);
if (rc)
goto cleanup;
kfree(str_desc);
str_desc = NULL;
/* Initialize the pen interface */
rdesc_pen = uclogic_rdesc_template_apply(
uclogic_rdesc_ugee_v2_pen_template_arr,
uclogic_rdesc_ugee_v2_pen_template_size,
desc_params, ARRAY_SIZE(desc_params));
if (!rdesc_pen) {
rc = -ENOMEM;
goto cleanup;
}
p.pen.desc_ptr = rdesc_pen;
p.pen.desc_size = uclogic_rdesc_ugee_v2_pen_template_size;
p.pen.id = 0x02;
p.pen.subreport_list[0].value = 0xf0;
p.pen.subreport_list[0].id = UCLOGIC_RDESC_V1_FRAME_ID;
/* Initialize the frame interface */
if (drvdata->quirks & UCLOGIC_MOUSE_FRAME_QUIRK)
frame_type = UCLOGIC_PARAMS_FRAME_MOUSE;
switch (frame_type) {
case UCLOGIC_PARAMS_FRAME_DIAL:
case UCLOGIC_PARAMS_FRAME_MOUSE:
rc = uclogic_params_ugee_v2_init_frame_dial(&p, desc_params,
ARRAY_SIZE(desc_params));
break;
case UCLOGIC_PARAMS_FRAME_BUTTONS:
default:
rc = uclogic_params_ugee_v2_init_frame_buttons(&p, desc_params,
ARRAY_SIZE(desc_params));
break;
}
if (rc)
goto cleanup;
/* Initialize the battery interface*/
if (uclogic_params_ugee_v2_has_battery(hdev)) {
rc = uclogic_params_ugee_v2_init_battery(hdev, &p);
if (rc) {
hid_err(hdev, "error initializing battery: %d\n", rc);
goto cleanup;
}
}
/* Create a list of raw events to be ignored */
rc = uclogic_params_ugee_v2_init_event_hooks(hdev, &p);
if (rc) {
hid_err(hdev, "error initializing event hook list: %d\n", rc);
goto cleanup;
}
output:
/* Output parameters */
memcpy(params, &p, sizeof(*params));
memset(&p, 0, sizeof(p));
rc = 0;
cleanup:
kfree(str_desc);
uclogic_params_cleanup(&p);
return rc;
}
/**
* uclogic_params_init() - initialize a tablet interface and discover its
* parameters.
*
* @params: Parameters to fill in (to be cleaned with
* uclogic_params_cleanup()). Not modified in case of error.
* Cannot be NULL.
* @hdev: The HID device of the tablet interface to initialize and get
* parameters from. Cannot be NULL. Must be using the USB low-level
* driver, i.e. be an actual USB tablet.
*
* Returns:
* Zero, if successful. A negative errno code on error.
*/
int uclogic_params_init(struct uclogic_params *params,
struct hid_device *hdev)
{
int rc;
struct usb_device *udev;
__u8 bNumInterfaces;
struct usb_interface *iface;
__u8 bInterfaceNumber;
bool found;
/* The resulting parameters (noop) */
struct uclogic_params p = {0, };
/* Check arguments */
if (params == NULL || hdev == NULL || !hid_is_usb(hdev)) {
rc = -EINVAL;
goto cleanup;
}
udev = hid_to_usb_dev(hdev);
bNumInterfaces = udev->config->desc.bNumInterfaces;
iface = to_usb_interface(hdev->dev.parent);
bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
/*
* Set replacement report descriptor if the original matches the
* specified size. Otherwise keep interface unchanged.
*/
#define WITH_OPT_DESC(_orig_desc_token, _new_desc_token) \
uclogic_params_init_with_opt_desc( \
&p, hdev, \
UCLOGIC_RDESC_##_orig_desc_token##_SIZE, \
uclogic_rdesc_##_new_desc_token##_arr, \
uclogic_rdesc_##_new_desc_token##_size)
#define VID_PID(_vid, _pid) \
(((__u32)(_vid) << 16) | ((__u32)(_pid) & U16_MAX))
/*
* Handle specific interfaces for specific tablets.
*
* Observe the following logic:
*
* If the interface is recognized as producing certain useful input:
* Mark interface as valid.
* Output interface parameters.
* Else, if the interface is recognized as *not* producing any useful
* input:
* Mark interface as invalid.
* Else:
* Mark interface as valid.
* Output noop parameters.
*
* Rule of thumb: it is better to disable a broken interface than let
* it spew garbage input.
*/
switch (VID_PID(hdev->vendor, hdev->product)) {
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_PF1209):
rc = WITH_OPT_DESC(PF1209_ORIG, pf1209_fixed);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U):
rc = WITH_OPT_DESC(WPXXXXU_ORIG, wp4030u_fixed);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U):
if (hdev->dev_rsize == UCLOGIC_RDESC_WP5540U_V2_ORIG_SIZE) {
if (bInterfaceNumber == 0) {
/* Try to probe v1 pen parameters */
rc = uclogic_params_pen_init_v1(&p.pen,
&found, hdev);
if (rc != 0) {
hid_err(hdev,
"pen probing failed: %d\n",
rc);
goto cleanup;
}
if (!found) {
hid_warn(hdev,
"pen parameters not found");
}
} else {
uclogic_params_init_invalid(&p);
}
} else {
rc = WITH_OPT_DESC(WPXXXXU_ORIG, wp5540u_fixed);
if (rc != 0)
goto cleanup;
}
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U):
rc = WITH_OPT_DESC(WPXXXXU_ORIG, wp8060u_fixed);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_WP1062):
rc = WITH_OPT_DESC(WP1062_ORIG, wp1062_fixed);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850):
switch (bInterfaceNumber) {
case 0:
rc = WITH_OPT_DESC(TWHL850_ORIG0, twhl850_fixed0);
if (rc != 0)
goto cleanup;
break;
case 1:
rc = WITH_OPT_DESC(TWHL850_ORIG1, twhl850_fixed1);
if (rc != 0)
goto cleanup;
break;
case 2:
rc = WITH_OPT_DESC(TWHL850_ORIG2, twhl850_fixed2);
if (rc != 0)
goto cleanup;
break;
}
break;
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60):
/*
* If it is not a three-interface version, which is known to
* respond to initialization.
*/
if (bNumInterfaces != 3) {
switch (bInterfaceNumber) {
case 0:
rc = WITH_OPT_DESC(TWHA60_ORIG0,
twha60_fixed0);
if (rc != 0)
goto cleanup;
break;
case 1:
rc = WITH_OPT_DESC(TWHA60_ORIG1,
twha60_fixed1);
if (rc != 0)
goto cleanup;
break;
}
break;
}
fallthrough;
case VID_PID(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET):
case VID_PID(USB_VENDOR_ID_HUION,
USB_DEVICE_ID_HUION_TABLET2):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_HUION_TABLET):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_YIYNOVA_TABLET):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_81):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_45):
case VID_PID(USB_VENDOR_ID_UCLOGIC,
USB_DEVICE_ID_UCLOGIC_UGEE_TABLET_47):
rc = uclogic_params_huion_init(&p, hdev);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_UGTIZER,
USB_DEVICE_ID_UGTIZER_TABLET_GP0610):
case VID_PID(USB_VENDOR_ID_UGTIZER,
USB_DEVICE_ID_UGTIZER_TABLET_GT5040):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_G540):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_G640):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_STAR06):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_RAINBOW_CV720):
/* If this is the pen interface */
if (bInterfaceNumber == 1) {
/* Probe v1 pen parameters */
rc = uclogic_params_pen_init_v1(&p.pen, &found, hdev);
if (rc != 0) {
hid_err(hdev, "pen probing failed: %d\n", rc);
goto cleanup;
}
if (!found) {
hid_warn(hdev, "pen parameters not found");
uclogic_params_init_invalid(&p);
}
} else {
uclogic_params_init_invalid(&p);
}
break;
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01):
/* If this is the pen and frame interface */
if (bInterfaceNumber == 1) {
/* Probe v1 pen parameters */
rc = uclogic_params_pen_init_v1(&p.pen, &found, hdev);
if (rc != 0) {
hid_err(hdev, "pen probing failed: %d\n", rc);
goto cleanup;
}
/* Initialize frame parameters */
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[0],
uclogic_rdesc_xppen_deco01_frame_arr,
uclogic_rdesc_xppen_deco01_frame_size,
0);
if (rc != 0)
goto cleanup;
} else {
uclogic_params_init_invalid(&p);
}
break;
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_PARBLO_A610_PRO):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO01_V2):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_S):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW):
rc = uclogic_params_ugee_v2_init(&p, hdev);
if (rc != 0)
goto cleanup;
break;
case VID_PID(USB_VENDOR_ID_TRUST,
USB_DEVICE_ID_TRUST_PANORA_TABLET):
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_G5):
/* Ignore non-pen interfaces */
if (bInterfaceNumber != 1) {
uclogic_params_init_invalid(&p);
break;
}
rc = uclogic_params_pen_init_v1(&p.pen, &found, hdev);
if (rc != 0) {
hid_err(hdev, "pen probing failed: %d\n", rc);
goto cleanup;
} else if (found) {
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[0],
uclogic_rdesc_ugee_g5_frame_arr,
uclogic_rdesc_ugee_g5_frame_size,
UCLOGIC_RDESC_UGEE_G5_FRAME_ID);
if (rc != 0) {
hid_err(hdev,
"failed creating frame parameters: %d\n",
rc);
goto cleanup;
}
p.frame_list[0].re_lsb =
UCLOGIC_RDESC_UGEE_G5_FRAME_RE_LSB;
p.frame_list[0].dev_id_byte =
UCLOGIC_RDESC_UGEE_G5_FRAME_DEV_ID_BYTE;
} else {
hid_warn(hdev, "pen parameters not found");
uclogic_params_init_invalid(&p);
}
break;
case VID_PID(USB_VENDOR_ID_UGEE,
USB_DEVICE_ID_UGEE_TABLET_EX07S):
/* Ignore non-pen interfaces */
if (bInterfaceNumber != 1) {
uclogic_params_init_invalid(&p);
break;
}
rc = uclogic_params_pen_init_v1(&p.pen, &found, hdev);
if (rc != 0) {
hid_err(hdev, "pen probing failed: %d\n", rc);
goto cleanup;
} else if (found) {
rc = uclogic_params_frame_init_with_desc(
&p.frame_list[0],
uclogic_rdesc_ugee_ex07_frame_arr,
uclogic_rdesc_ugee_ex07_frame_size,
0);
if (rc != 0) {
hid_err(hdev,
"failed creating frame parameters: %d\n",
rc);
goto cleanup;
}
} else {
hid_warn(hdev, "pen parameters not found");
uclogic_params_init_invalid(&p);
}
break;
}
#undef VID_PID
#undef WITH_OPT_DESC
/* Output parameters */
memcpy(params, &p, sizeof(*params));
memset(&p, 0, sizeof(p));
rc = 0;
cleanup:
uclogic_params_cleanup(&p);
return rc;
}
#ifdef CONFIG_HID_KUNIT_TEST
#include "hid-uclogic-params-test.c"
#endif
| linux-master | drivers/hid/hid-uclogic-params.c |
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