Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * drivers/input/tablet/wacom.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  USB Wacom tablet support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *  Copyright (c) 2000-2004 Vojtech Pavlik	<vojtech@ucw.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *  Copyright (c) 2000 Andreas Bach Aaen	<abach@stofanet.dk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *  Copyright (c) 2000 Clifford Wolf		<clifford@clifford.at>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *  Copyright (c) 2000 Sam Mosel		<sam.mosel@computer.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *  Copyright (c) 2000 James E. Blair		<corvus@gnu.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *  Copyright (c) 2000 Daniel Egger		<egger@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *  Copyright (c) 2001 Frederic Lepied		<flepied@mandrakesoft.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  *  Copyright (c) 2004 Panagiotis Issaris	<panagiotis.issaris@mech.kuleuven.ac.be>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  *  Copyright (c) 2002-2011 Ping Cheng		<pingc@wacom.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  *  Copyright (c) 2014 Benjamin Tissoires	<benjamin.tissoires@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *  ChangeLog:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  *      v0.1 (vp)  - Initial release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *      v0.2 (aba) - Support for all buttons / combinations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  *      v0.3 (vp)  - Support for Intuos added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *	v0.4 (sm)  - Support for more Intuos models, menustrip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *			relative mode, proximity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *	v0.5 (vp)  - Big cleanup, nifty features removed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  *			they belong in userspace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *	v1.8 (vp)  - Submit URB only when operating, moved to CVS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  *			use input_report_key instead of report_btn and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  *			other cleanups
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  *	v1.11 (vp) - Add URB ->dev setting for new kernels
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  *	v1.11 (jb) - Add support for the 4D Mouse & Lens
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  *	v1.12 (de) - Add support for two more inking pen IDs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  *	v1.14 (vp) - Use new USB device id probing scheme.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  *		     Fix Wacom Graphire mouse wheel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  *	v1.18 (vp) - Fix mouse wheel direction
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  *		     Make mouse relative
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  *      v1.20 (fl) - Report tool id for Intuos devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  *                 - Multi tools support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  *                 - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  *                 - Add PL models support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  *		   - Fix Wacom Graphire mouse wheel again
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  *	v1.21 (vp) - Removed protocol descriptions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  *		   - Added MISC_SERIAL for tool serial numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  *	      (gb) - Identify version on module load.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  *    v1.21.1 (fl) - added Graphire2 support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45)  *    v1.21.2 (fl) - added Intuos2 support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46)  *                 - added all the PL ids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  *    v1.21.3 (fl) - added another eraser id from Neil Okamoto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  *                 - added smooth filter for Graphire from Peri Hankey
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  *                 - added PenPartner support from Olaf van Es
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  *                 - new tool ids from Ole Martin Bjoerndalen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  *	v1.29 (pc) - Add support for more tablets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  *		   - Fix pressure reporting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  *	v1.30 (vp) - Merge 2.4 and 2.5 drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  *		   - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  *		   - Cleanups here and there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  *    v1.30.1 (pi) - Added Graphire3 support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57)  *	v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58)  *	v1.43 (pc) - Added support for Cintiq 21UX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  *		   - Fixed a Graphire bug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  *		   - Merged wacom_intuos3_irq into wacom_intuos_irq
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  *	v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  *		   - Report Device IDs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  *      v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  *                 - Minor data report fix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  *      v1.46 (pc) - Split wacom.c into wacom_sys.c and wacom_wac.c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  *		   - where wacom_sys.c deals with system specific code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  *		   - and wacom_wac.c deals with Wacom specific code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  *		   - Support Intuos3 4x6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  *      v1.47 (pc) - Added support for Bamboo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  *      v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  *      v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72)  *      v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)  *      v1.51 (pc) - Added support for Intuos4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  *      v1.52 (pc) - Query Wacom data upon system resume
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  *                 - add defines for features->type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  *                 - add new devices (0x9F, 0xE2, and 0XE3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77)  *      v2.00 (bt) - conversion to a HID driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  *                 - integration of the Bluetooth devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #ifndef WACOM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) #define WACOM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) #include <linux/mod_devicetable.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) #include <linux/kfifo.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) #include <linux/usb/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97)  * Version Information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) #define DRIVER_VERSION "v2.00"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #define DRIVER_DESC "USB Wacom tablet driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define USB_VENDOR_ID_WACOM	0x056a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define USB_VENDOR_ID_LENOVO	0x17ef
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) enum wacom_worker {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	WACOM_WORKER_WIRELESS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	WACOM_WORKER_BATTERY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	WACOM_WORKER_REMOTE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	WACOM_WORKER_MODE_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct wacom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct wacom_led {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	struct led_classdev cdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	struct led_trigger trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct wacom *wacom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	unsigned int group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	unsigned int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	u8 llv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	u8 hlv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	bool held;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct wacom_group_leds {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	u8 select; /* status led selector (0..3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	struct wacom_led *leds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	unsigned int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct wacom_battery {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct wacom *wacom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	struct power_supply_desc bat_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	struct power_supply *battery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	char bat_name[WACOM_NAME_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	int bat_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	int battery_capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	int bat_charging;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	int bat_connected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	int ps_connected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct wacom_remote {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	spinlock_t remote_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct kfifo remote_fifo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	struct kobject *remote_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		struct attribute_group group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		u32 serial;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		bool registered;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		struct wacom_battery battery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	} remotes[WACOM_MAX_REMOTES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct wacom {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	struct usb_device *usbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	struct wacom_wac wacom_wac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	struct hid_device *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	struct work_struct wireless_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	struct work_struct battery_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	struct work_struct remote_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	struct delayed_work init_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	struct wacom_remote *remote;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	struct work_struct mode_change_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	bool generic_has_leds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct wacom_leds {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		struct wacom_group_leds *groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		unsigned int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		u8 llv;       /* status led brightness no button (1..127) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		u8 hlv;       /* status led brightness button pressed (1..127) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		u8 img_lum;   /* OLED matrix display brightness */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		u8 max_llv;   /* maximum brightness of LED (llv) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		u8 max_hlv;   /* maximum brightness of LED (hlv) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	} led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	struct wacom_battery battery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	bool resources;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 				       enum wacom_worker which)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	switch (which) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	case WACOM_WORKER_WIRELESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		schedule_work(&wacom->wireless_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	case WACOM_WORKER_BATTERY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		schedule_work(&wacom->battery_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	case WACOM_WORKER_REMOTE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		schedule_work(&wacom->remote_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	case WACOM_WORKER_MODE_CHANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		schedule_work(&wacom->mode_change_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)  * Convert a signed 32-bit integer to an unsigned n-bit integer. Undoes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)  * the normally-helpful work of 'hid_snto32' for fields that use signed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)  * ranges for questionable reasons.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static inline __u32 wacom_s32tou(s32 value, __u8 n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	switch (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	case 8:  return ((__u8)value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	case 16: return ((__u16)value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	case 32: return ((__u32)value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	return value & (1 << (n - 1)) ? value & (~(~0U << n)) : value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) extern const struct hid_device_id wacom_ids[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) void wacom_setup_device_quirks(struct wacom *wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 				   struct wacom_wac *wacom_wac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 				   struct wacom_wac *wacom_wac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 				       struct wacom_wac *wacom_wac);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) void wacom_wac_usage_mapping(struct hid_device *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		struct hid_field *field, struct hid_usage *usage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		struct hid_usage *usage, __s32 value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) void wacom_wac_report(struct hid_device *hdev, struct hid_report *report);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) void wacom_battery_work(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) enum led_brightness wacom_leds_brightness_get(struct wacom_led *led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 				 unsigned int id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int wacom_equivalent_usage(int usage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int wacom_initialize_leds(struct wacom *wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) #endif