text: /*
   * drivers/input/tablet/wacom.h
   *
   *  USB Wacom tablet support
   *
   *  Copyright (c) 2000-2004 Vojtech Pavlik	<vojtech@ucw.cz>
   *  Copyright (c) 2000 Andreas Bach Aaen	<abach@stofanet.dk>
   *  Copyright (c) 2000 Clifford Wolf		<clifford@clifford.at>
   *  Copyright (c) 2000 Sam Mosel		<sam.mosel@computer.org>
   *  Copyright (c) 2000 James E. Blair		<corvus@gnu.org>
   *  Copyright (c) 2000 Daniel Egger		<egger@suse.de>
   *  Copyright (c) 2001 Frederic Lepied		<flepied@mandrakesoft.com>
   *  Copyright (c) 2004 Panagiotis Issaris	<panagiotis.issaris@mech.kuleuven.ac.be>
   *  Copyright (c) 2002-2011 Ping Cheng		<pingc@wacom.com>
   *
   *  ChangeLog:
   *      v0.1 (vp)  - Initial release
   *      v0.2 (aba) - Support for all buttons / combinations
   *      v0.3 (vp)  - Support for Intuos added
   *	v0.4 (sm)  - Support for more Intuos models, menustrip
   *			relative mode, proximity.
   *	v0.5 (vp)  - Big cleanup, nifty features removed,
   *			they belong in userspace
   *	v1.8 (vp)  - Submit URB only when operating, moved to CVS,
   *			use input_report_key instead of report_btn and
   *			other cleanups
   *	v1.11 (vp) - Add URB ->dev setting for new kernels
   *	v1.11 (jb) - Add support for the 4D Mouse & Lens
   *	v1.12 (de) - Add support for two more inking pen IDs
   *	v1.14 (vp) - Use new USB device id probing scheme.
   *		     Fix Wacom Graphire mouse wheel
   *	v1.18 (vp) - Fix mouse wheel direction
   *		     Make mouse relative
   *      v1.20 (fl) - Report tool id for Intuos devices
   *                 - Multi tools support
   *                 - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
   *                 - Add PL models support
   *		   - Fix Wacom Graphire mouse wheel again
   *	v1.21 (vp) - Removed protocol descriptions
   *		   - Added MISC_SERIAL for tool serial numbers
   *	      (gb) - Identify version on module load.
   *    v1.21.1 (fl) - added Graphire2 support
   *    v1.21.2 (fl) - added Intuos2 support
   *                 - added all the PL ids
   *    v1.21.3 (fl) - added another eraser id from Neil Okamoto
   *                 - added smooth filter for Graphire from Peri Hankey
   *                 - added PenPartner support from Olaf van Es
   *                 - new tool ids from Ole Martin Bjoerndalen
   *	v1.29 (pc) - Add support for more tablets
   *		   - Fix pressure reporting
   *	v1.30 (vp) - Merge 2.4 and 2.5 drivers
   *		   - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
   *		   - Cleanups here and there
   *    v1.30.1 (pi) - Added Graphire3 support
   *	v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
   *	v1.43 (pc) - Added support for Cintiq 21UX
   *		   - Fixed a Graphire bug
   *		   - Merged wacom_intuos3_irq into wacom_intuos_irq
   *	v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc.
   *		   - Report Device IDs
   *      v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19
   *                 - Minor data report fix
   *      v1.46 (pc) - Split wacom.c into wacom_sys.c and wacom_wac.c,
   *		   - where wacom_sys.c deals with system specific code,
   *		   - and wacom_wac.c deals with Wacom specific code
   *		   - Support Intuos3 4x6
   *      v1.47 (pc) - Added support for Bamboo
   *      v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
   *      v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
   *      v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28
   *      v1.51 (pc) - Added support for Intuos4
   *      v1.52 (pc) - Query Wacom data upon system resume
   *                 - add defines for features->type
   *                 - add new devices (0x9F, 0xE2, and 0XE3)
   */
  
  /*
   * 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.
   */
  #ifndef WACOM_H
  #define WACOM_H
  #include <linux/kernel.h>
  #include <linux/slab.h>
  #include <linux/module.h>
  #include <linux/mod_devicetable.h>
  #include <linux/init.h>
  #include <linux/usb/input.h>
  #include <linux/power_supply.h>
  #include <asm/unaligned.h>
  
  /*
   * Version Information
   */
  #define DRIVER_VERSION "v1.53"
  #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
  #define DRIVER_DESC "USB Wacom tablet driver"
  #define DRIVER_LICENSE "GPL"
  
  MODULE_AUTHOR(DRIVER_AUTHOR);
  MODULE_DESCRIPTION(DRIVER_DESC);
  MODULE_LICENSE(DRIVER_LICENSE);
  
  #define USB_VENDOR_ID_WACOM	0x056a
  #define USB_VENDOR_ID_LENOVO	0x17ef
  
  struct wacom {
  	dma_addr_t data_dma;
  	struct usb_device *usbdev;
  	struct usb_interface *intf;
  	struct urb *irq;
  	struct wacom_wac wacom_wac;
  	struct mutex lock;
  	struct work_struct work;
  	bool open;
  	char phys[32];
  	struct wacom_led {
  		u8 select[2]; /* status led selector (0..3) */
  		u8 llv;       /* status led brightness no button (1..127) */
  		u8 hlv;       /* status led brightness button pressed (1..127) */
  		u8 img_lum;   /* OLED matrix display brightness */
  	} led;
  	struct power_supply battery;
  };
  
  static inline void wacom_schedule_work(struct wacom_wac *wacom_wac)
  {
  	struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
  	schedule_work(&wacom->work);
  }
  
  extern const struct usb_device_id wacom_ids[];
  
  void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
  void wacom_setup_device_quirks(struct wacom_features *features);
  int wacom_setup_input_capabilities(struct input_dev *input_dev,
  				   struct wacom_wac *wacom_wac);
  #endif
  