/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* drivers/input/tablet/wacom.h
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*
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* USB Wacom tablet support
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*
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* Copyright (c) 2000-2004 Vojtech Pavlik <vojtech@ucw.cz>
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* Copyright (c) 2000 Andreas Bach Aaen <abach@stofanet.dk>
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* Copyright (c) 2000 Clifford Wolf <clifford@clifford.at>
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* Copyright (c) 2000 Sam Mosel <sam.mosel@computer.org>
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* Copyright (c) 2000 James E. Blair <corvus@gnu.org>
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* Copyright (c) 2000 Daniel Egger <egger@suse.de>
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* Copyright (c) 2001 Frederic Lepied <flepied@mandrakesoft.com>
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* Copyright (c) 2004 Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be>
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* Copyright (c) 2002-2011 Ping Cheng <pingc@wacom.com>
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* Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@redhat.com>
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*
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* ChangeLog:
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* v0.1 (vp) - Initial release
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* v0.2 (aba) - Support for all buttons / combinations
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* v0.3 (vp) - Support for Intuos added
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* v0.4 (sm) - Support for more Intuos models, menustrip
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* relative mode, proximity.
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* v0.5 (vp) - Big cleanup, nifty features removed,
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* they belong in userspace
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* v1.8 (vp) - Submit URB only when operating, moved to CVS,
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* use input_report_key instead of report_btn and
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* other cleanups
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* v1.11 (vp) - Add URB ->dev setting for new kernels
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* v1.11 (jb) - Add support for the 4D Mouse & Lens
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* v1.12 (de) - Add support for two more inking pen IDs
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* v1.14 (vp) - Use new USB device id probing scheme.
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* Fix Wacom Graphire mouse wheel
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* v1.18 (vp) - Fix mouse wheel direction
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* Make mouse relative
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* v1.20 (fl) - Report tool id for Intuos devices
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* - Multi tools support
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* - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
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* - Add PL models support
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* - Fix Wacom Graphire mouse wheel again
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* v1.21 (vp) - Removed protocol descriptions
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* - Added MISC_SERIAL for tool serial numbers
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* (gb) - Identify version on module load.
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* v1.21.1 (fl) - added Graphire2 support
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* v1.21.2 (fl) - added Intuos2 support
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* - added all the PL ids
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* v1.21.3 (fl) - added another eraser id from Neil Okamoto
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* - added smooth filter for Graphire from Peri Hankey
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* - added PenPartner support from Olaf van Es
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* - new tool ids from Ole Martin Bjoerndalen
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* v1.29 (pc) - Add support for more tablets
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* - Fix pressure reporting
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* v1.30 (vp) - Merge 2.4 and 2.5 drivers
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* - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
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* - Cleanups here and there
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* v1.30.1 (pi) - Added Graphire3 support
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* v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
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* v1.43 (pc) - Added support for Cintiq 21UX
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* - Fixed a Graphire bug
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* - Merged wacom_intuos3_irq into wacom_intuos_irq
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* v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc.
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* - Report Device IDs
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* v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19
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* - Minor data report fix
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* v1.46 (pc) - Split wacom.c into wacom_sys.c and wacom_wac.c,
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* - where wacom_sys.c deals with system specific code,
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* - and wacom_wac.c deals with Wacom specific code
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* - Support Intuos3 4x6
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* v1.47 (pc) - Added support for Bamboo
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* v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
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* v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
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* v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28
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* v1.51 (pc) - Added support for Intuos4
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* v1.52 (pc) - Query Wacom data upon system resume
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* - add defines for features->type
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* - add new devices (0x9F, 0xE2, and 0XE3)
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* v2.00 (bt) - conversion to a HID driver
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* - integration of the Bluetooth devices
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*/
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/*
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*/
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#ifndef WACOM_H
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#define WACOM_H
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/hid.h>
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#include <linux/kfifo.h>
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#include <linux/leds.h>
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#include <linux/usb/input.h>
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#include <linux/power_supply.h>
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#include <asm/unaligned.h>
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/*
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* Version Information
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*/
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#define DRIVER_VERSION "v2.00"
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#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
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#define DRIVER_DESC "USB Wacom tablet driver"
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#define USB_VENDOR_ID_WACOM 0x056a
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#define USB_VENDOR_ID_LENOVO 0x17ef
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enum wacom_worker {
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WACOM_WORKER_WIRELESS,
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WACOM_WORKER_BATTERY,
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WACOM_WORKER_REMOTE,
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WACOM_WORKER_MODE_CHANGE,
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};
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struct wacom;
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struct wacom_led {
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struct led_classdev cdev;
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struct led_trigger trigger;
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struct wacom *wacom;
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unsigned int group;
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unsigned int id;
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u8 llv;
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u8 hlv;
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bool held;
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};
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struct wacom_group_leds {
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u8 select; /* status led selector (0..3) */
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struct wacom_led *leds;
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unsigned int count;
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struct device *dev;
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};
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struct wacom_battery {
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struct wacom *wacom;
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struct power_supply_desc bat_desc;
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struct power_supply *battery;
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char bat_name[WACOM_NAME_MAX];
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int bat_status;
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int battery_capacity;
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int bat_charging;
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int bat_connected;
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int ps_connected;
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};
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struct wacom_remote {
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spinlock_t remote_lock;
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struct kfifo remote_fifo;
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struct kobject *remote_dir;
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struct {
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struct attribute_group group;
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u32 serial;
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struct input_dev *input;
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bool registered;
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struct wacom_battery battery;
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} remotes[WACOM_MAX_REMOTES];
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};
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struct wacom {
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struct usb_device *usbdev;
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struct usb_interface *intf;
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struct wacom_wac wacom_wac;
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struct hid_device *hdev;
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struct mutex lock;
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struct work_struct wireless_work;
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struct work_struct battery_work;
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struct work_struct remote_work;
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struct delayed_work init_work;
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struct wacom_remote *remote;
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struct work_struct mode_change_work;
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bool generic_has_leds;
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struct wacom_leds {
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struct wacom_group_leds *groups;
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unsigned int count;
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u8 llv; /* status led brightness no button (1..127) */
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u8 hlv; /* status led brightness button pressed (1..127) */
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u8 img_lum; /* OLED matrix display brightness */
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u8 max_llv; /* maximum brightness of LED (llv) */
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u8 max_hlv; /* maximum brightness of LED (hlv) */
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} led;
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struct wacom_battery battery;
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bool resources;
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};
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static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
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enum wacom_worker which)
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{
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struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
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switch (which) {
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case WACOM_WORKER_WIRELESS:
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schedule_work(&wacom->wireless_work);
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break;
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case WACOM_WORKER_BATTERY:
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schedule_work(&wacom->battery_work);
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break;
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case WACOM_WORKER_REMOTE:
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schedule_work(&wacom->remote_work);
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break;
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case WACOM_WORKER_MODE_CHANGE:
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schedule_work(&wacom->mode_change_work);
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break;
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}
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}
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/*
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* Convert a signed 32-bit integer to an unsigned n-bit integer. Undoes
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* the normally-helpful work of 'hid_snto32' for fields that use signed
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* ranges for questionable reasons.
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*/
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static inline __u32 wacom_s32tou(s32 value, __u8 n)
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{
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switch (n) {
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case 8: return ((__u8)value);
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case 16: return ((__u16)value);
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case 32: return ((__u32)value);
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}
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return value & (1 << (n - 1)) ? value & (~(~0U << n)) : value;
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}
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extern const struct hid_device_id wacom_ids[];
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void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
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void wacom_setup_device_quirks(struct wacom *wacom);
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int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
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struct wacom_wac *wacom_wac);
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int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
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struct wacom_wac *wacom_wac);
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int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
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struct wacom_wac *wacom_wac);
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void wacom_wac_usage_mapping(struct hid_device *hdev,
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struct hid_field *field, struct hid_usage *usage);
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void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
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struct hid_usage *usage, __s32 value);
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void wacom_wac_report(struct hid_device *hdev, struct hid_report *report);
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void wacom_battery_work(struct work_struct *work);
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enum led_brightness wacom_leds_brightness_get(struct wacom_led *led);
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struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group,
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unsigned int id);
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struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur);
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int wacom_equivalent_usage(int usage);
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int wacom_initialize_leds(struct wacom *wacom);
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#endif
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