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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* 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>
* Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@redhat.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)
* v2.00 (bt) - conversion to a HID driver
* - integration of the Bluetooth devices
*/
#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/hid.h>
#include <linux/kfifo.h>
#include <linux/leds.h>
#include <linux/usb/input.h>
#include <linux/power_supply.h>
#include <linux/timer.h>
#include <asm/unaligned.h>
/*
* Version Information
*/
#define DRIVER_VERSION "v2.00"
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
#define DRIVER_DESC "USB Wacom tablet driver"
#define USB_VENDOR_ID_WACOM 0x056a
#define USB_VENDOR_ID_LENOVO 0x17ef
enum wacom_worker {
WACOM_WORKER_WIRELESS,
WACOM_WORKER_BATTERY,
WACOM_WORKER_REMOTE,
WACOM_WORKER_MODE_CHANGE,
};
struct wacom;
struct wacom_led {
struct led_classdev cdev;
struct led_trigger trigger;
struct wacom *wacom;
unsigned int group;
unsigned int id;
u8 llv;
u8 hlv;
bool held;
};
struct wacom_group_leds {
u8 select; /* status led selector (0..3) */
struct wacom_led *leds;
unsigned int count;
struct device *dev;
};
struct wacom_battery {
struct wacom *wacom;
struct power_supply_desc bat_desc;
struct power_supply *battery;
char bat_name[WACOM_NAME_MAX];
int bat_status;
int battery_capacity;
int bat_charging;
int bat_connected;
int ps_connected;
};
struct wacom_remote {
spinlock_t remote_lock;
struct kfifo remote_fifo;
struct kobject *remote_dir;
struct {
struct attribute_group group;
u32 serial;
struct input_dev *input;
bool registered;
struct wacom_battery battery;
} remotes[WACOM_MAX_REMOTES];
};
struct wacom {
struct usb_device *usbdev;
struct usb_interface *intf;
struct wacom_wac wacom_wac;
struct hid_device *hdev;
struct mutex lock;
struct work_struct wireless_work;
struct work_struct battery_work;
struct work_struct remote_work;
struct delayed_work init_work;
struct wacom_remote *remote;
struct work_struct mode_change_work;
struct timer_list idleprox_timer;
bool generic_has_leds;
struct wacom_leds {
struct wacom_group_leds *groups;
unsigned int count;
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 */
u8 max_llv; /* maximum brightness of LED (llv) */
u8 max_hlv; /* maximum brightness of LED (hlv) */
} led;
struct wacom_battery battery;
bool resources;
};
static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
enum wacom_worker which)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
switch (which) {
case WACOM_WORKER_WIRELESS:
schedule_work(&wacom->wireless_work);
break;
case WACOM_WORKER_BATTERY:
schedule_work(&wacom->battery_work);
break;
case WACOM_WORKER_REMOTE:
schedule_work(&wacom->remote_work);
break;
case WACOM_WORKER_MODE_CHANGE:
schedule_work(&wacom->mode_change_work);
break;
}
}
/*
* Convert a signed 32-bit integer to an unsigned n-bit integer. Undoes
* the normally-helpful work of 'hid_snto32' for fields that use signed
* ranges for questionable reasons.
*/
static inline __u32 wacom_s32tou(s32 value, __u8 n)
{
switch (n) {
case 8: return ((__u8)value);
case 16: return ((__u16)value);
case 32: return ((__u32)value);
}
return value & (1 << (n - 1)) ? value & (~(~0U << n)) : value;
}
extern const struct hid_device_id wacom_ids[];
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
void wacom_setup_device_quirks(struct wacom *wacom);
int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac);
int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac);
int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac);
void wacom_wac_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage);
void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value);
void wacom_wac_report(struct hid_device *hdev, struct hid_report *report);
void wacom_battery_work(struct work_struct *work);
enum led_brightness wacom_leds_brightness_get(struct wacom_led *led);
struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group,
unsigned int id);
struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur);
int wacom_equivalent_usage(int usage);
int wacom_initialize_leds(struct wacom *wacom);
void wacom_idleprox_timeout(struct timer_list *list);
#endif
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