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linux_dsm_epyc7002/drivers/hid/hid-waltop.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Waltop devices not fully compliant with HID standard
*
* Copyright (c) 2010 Nikolai Kondrashov
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/*
* There exists an official driver on the manufacturer's website, which
* wasn't submitted to the kernel, for some reason. The official driver
* doesn't seem to support extra features of some tablets, like wheels.
*
* It shows that the feature report ID 2 could be used to control any waltop
* tablet input mode, switching it between "default", "tablet" and "ink".
*
* This driver only uses "default" mode for all the supported tablets. This
* mode tries to be HID-compatible (not very successfully), but cripples the
* resolution of some tablets.
*
* The "tablet" mode uses some proprietary, yet decipherable protocol, which
* represents the correct resolution, but is possibly HID-incompatible (i.e.
* indescribable by a report descriptor).
*
* The purpose of the "ink" mode is unknown.
*
* The feature reports needed for switching to each mode are these:
*
* 02 16 00 default
* 02 16 01 tablet
* 02 16 02 ink
*/
/* Size of the original report descriptor of Slim Tablet 5.8 inch */
#define SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE 222
/* Fixed Slim Tablet 5.8 inch descriptor */
static __u8 slim_tablet_5_8_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x88, 0x13, /* Physical Maximum (5000), */
0x26, 0x10, 0x27, /* Logical Maximum (10000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0xB8, 0x0B, /* Physical Maximum (3000), */
0x26, 0x70, 0x17, /* Logical Maximum (6000), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Slim Tablet 12.1 inch */
#define SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE 269
/* Fixed Slim Tablet 12.1 inch descriptor */
static __u8 slim_tablet_12_1_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x6A, 0x18, /* Physical Maximum (6250), */
0x26, 0xD4, 0x30, /* Logical Maximum (12500), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Q Pad */
#define Q_PAD_RDESC_ORIG_SIZE 241
/* Fixed Q Pad descriptor */
static __u8 q_pad_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0x00, 0x30, /* Logical Maximum (12288), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x94, 0x11, /* Physical Maximum (4500), */
0x26, 0x00, 0x24, /* Logical Maximum (9216), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of tablet with PID 0038 */
#define PID_0038_RDESC_ORIG_SIZE 241
/*
* Fixed report descriptor for tablet with PID 0038.
*/
static __u8 pid_0038_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x2E, 0x22, /* Physical Maximum (8750), */
0x26, 0x00, 0x46, /* Logical Maximum (17920), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x82, 0x14, /* Physical Maximum (5250), */
0x26, 0x00, 0x2A, /* Logical Maximum (10752), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Media Tablet 10.6 inch */
#define MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE 300
/* Fixed Media Tablet 10.6 inch descriptor */
static __u8 media_tablet_10_6_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x75, 0x01, /* Report Size (1), */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0x28, 0x23, /* Physical Maximum (9000), */
0x26, 0x50, 0x46, /* Logical Maximum (18000), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x7C, 0x15, /* Physical Maximum (5500), */
0x26, 0xF8, 0x2A, /* Logical Maximum (11000), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x02, /* Report Count (2), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x38, /* Usage (Wheel), */
0x0B, 0x38, 0x02, /* Usage (Consumer AC Pan), */
0x0C, 0x00,
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x03, /* Input (Constant, Variable), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x09, 0xB6, /* Usage (Scan Previous Track), */
0x09, 0xB5, /* Usage (Scan Next Track), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x15, 0x0C, /* Logical Minimum (12), */
0x25, 0x17, /* Logical Maximum (23), */
0x75, 0x05, /* Report Size (5), */
0x80, /* Input, */
0x75, 0x03, /* Report Size (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x20, /* Report Size (32), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x75, 0x01, /* Report Size (1), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x09, 0xE2, /* Usage (Mute), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x06, /* Input (Variable, Relative), */
0x95, 0x35, /* Report Count (53), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Media Tablet 14.1 inch */
#define MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE 309
/* Fixed Media Tablet 14.1 inch descriptor */
static __u8 media_tablet_14_1_inch_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
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), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x01, /* Report Count (1), */
0x80, /* Input, */
0x75, 0x01, /* Report Size (1), */
0x09, 0x32, /* Usage (In Range), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x65, 0x13, /* Unit (Inch), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x34, /* Physical Minimum (0), */
0x09, 0x30, /* Usage (X), */
0x46, 0xE0, 0x2E, /* Physical Maximum (12000), */
0x26, 0xFF, 0x3F, /* Logical Maximum (16383), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x31, /* Usage (Y), */
0x46, 0x52, 0x1C, /* Physical Maximum (7250), */
0x26, 0xFF, 0x3F, /* Logical Maximum (16383), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x09, 0x30, /* Usage (Tip Pressure), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x95, 0x02, /* Report Count (2), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x38, /* Usage (Wheel), */
0x0B, 0x38, 0x02, /* Usage (Consumer AC Pan), */
0x0C, 0x00,
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x10, /* Report Size (16), */
0x81, 0x03, /* Input (Constant, Variable), */
0x0A, 0x2F, 0x02, /* Usage (AC Zoom), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x09, 0xB6, /* Usage (Scan Previous Track), */
0x09, 0xB5, /* Usage (Scan Next Track), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x08, /* Usage (00h), */
0x0A, 0x2E, 0x02, /* Usage (AC Zoom Out), */
0x0A, 0x2D, 0x02, /* Usage (AC Zoom In), */
0x15, 0x0C, /* Logical Minimum (12), */
0x25, 0x17, /* Logical Maximum (23), */
0x75, 0x05, /* Report Size (5), */
0x80, /* Input, */
0x75, 0x03, /* Report Size (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x20, /* Report Size (32), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x75, 0x01, /* Report Size (1), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x09, 0xE2, /* Usage (Mute), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x06, /* Input (Variable, Relative), */
0x75, 0x05, /* Report Size (5), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
/* Size of the original report descriptor of Sirius Battery Free Tablet */
#define SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE 335
/* Fixed Sirius Battery Free Tablet descriptor */
static __u8 sirius_battery_free_tablet_rdesc_fixed[] = {
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x02, /* Usage (Pen), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x10, /* Report ID (16), */
0x09, 0x20, /* Usage (Stylus), */
0xA0, /* Collection (Physical), */
0x95, 0x01, /* Report Count (1), */
0x15, 0x01, /* Logical Minimum (1), */
0x25, 0x03, /* Logical Maximum (3), */
0x75, 0x02, /* Report Size (2), */
0x09, 0x42, /* Usage (Tip Switch), */
0x09, 0x44, /* Usage (Barrel Switch), */
0x09, 0x46, /* Usage (Tablet Pick), */
0x80, /* Input, */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x09, 0x3C, /* Usage (Invert), */
0x81, 0x02, /* Input (Variable), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x32, /* Usage (In Range), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xA4, /* Push, */
0x05, 0x01, /* Usage Page (Desktop), */
0x55, 0xFD, /* Unit Exponent (-3), */
0x65, 0x13, /* Unit (Inch), */
0x34, /* Physical Minimum (0), */
0x14, /* Logical Minimum (0), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x46, 0x10, 0x27, /* Physical Maximum (10000), */
0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
0x09, 0x30, /* Usage (X), */
0x81, 0x02, /* Input (Variable), */
0x46, 0x70, 0x17, /* Physical Maximum (6000), */
0x26, 0xE0, 0x2E, /* Logical Maximum (12000), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x14, /* Logical Minimum (0), */
0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
0x09, 0x30, /* Usage (Tip Pressure), */
0x81, 0x02, /* Input (Variable), */
0xA4, /* Push, */
0x55, 0xFE, /* Unit Exponent (-2), */
0x65, 0x12, /* Unit (Radians), */
0x35, 0x97, /* Physical Minimum (-105), */
0x45, 0x69, /* Physical Maximum (105), */
0x15, 0x97, /* Logical Minimum (-105), */
0x25, 0x69, /* Logical Maximum (105), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x09, 0x3D, /* Usage (X Tilt), */
0x09, 0x3E, /* Usage (Y Tilt), */
0x81, 0x02, /* Input (Variable), */
0xB4, /* Pop, */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA0, /* Collection (Physical), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0xFF, /* Logical Minimum (-1), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x06, /* Usage (Keyboard), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x05, 0x07, /* Usage Page (Keyboard), */
0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x08, /* Report Count (8), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0x18, /* Usage Minimum (None), */
0x29, 0x65, /* Usage Maximum (KB Application), */
0x14, /* Logical Minimum (0), */
0x25, 0x65, /* Logical Maximum (101), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x05, /* Report Count (5), */
0x80, /* Input, */
0xC0, /* End Collection, */
0x05, 0x0C, /* Usage Page (Consumer), */
0x09, 0x01, /* Usage (Consumer Control), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0C, /* Report ID (12), */
0x09, 0xE9, /* Usage (Volume Inc), */
0x09, 0xEA, /* Usage (Volume Dec), */
0x14, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x06, /* Report Size (6), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x03, /* Input (Constant, Variable), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0xC0 /* End Collection */
};
static __u8 *waltop_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH:
if (*rsize == SLIM_TABLET_5_8_INCH_RDESC_ORIG_SIZE) {
rdesc = slim_tablet_5_8_inch_rdesc_fixed;
*rsize = sizeof(slim_tablet_5_8_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH:
if (*rsize == SLIM_TABLET_12_1_INCH_RDESC_ORIG_SIZE) {
rdesc = slim_tablet_12_1_inch_rdesc_fixed;
*rsize = sizeof(slim_tablet_12_1_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_Q_PAD:
if (*rsize == Q_PAD_RDESC_ORIG_SIZE) {
rdesc = q_pad_rdesc_fixed;
*rsize = sizeof(q_pad_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_PID_0038:
if (*rsize == PID_0038_RDESC_ORIG_SIZE) {
rdesc = pid_0038_rdesc_fixed;
*rsize = sizeof(pid_0038_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH:
if (*rsize == MEDIA_TABLET_10_6_INCH_RDESC_ORIG_SIZE) {
rdesc = media_tablet_10_6_inch_rdesc_fixed;
*rsize = sizeof(media_tablet_10_6_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH:
if (*rsize == MEDIA_TABLET_14_1_INCH_RDESC_ORIG_SIZE) {
rdesc = media_tablet_14_1_inch_rdesc_fixed;
*rsize = sizeof(media_tablet_14_1_inch_rdesc_fixed);
}
break;
case USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET:
if (*rsize == SIRIUS_BATTERY_FREE_TABLET_RDESC_ORIG_SIZE) {
rdesc = sirius_battery_free_tablet_rdesc_fixed;
*rsize = sizeof(sirius_battery_free_tablet_rdesc_fixed);
}
break;
}
return rdesc;
}
static int waltop_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *data, int size)
{
/* If this is a pen input report */
if (report->type == HID_INPUT_REPORT && report->id == 16 && size >= 8) {
/*
* Ignore reported pressure when a barrel button is pressed,
* because it is rarely correct.
*/
/* If a barrel button is pressed */
if ((data[1] & 0xF) > 1) {
/* Report zero pressure */
data[6] = 0;
data[7] = 0;
}
}
/* If this is a pen input report of Sirius Battery Free Tablet */
if (hdev->product == USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET &&
report->type == HID_INPUT_REPORT &&
report->id == 16 &&
size == 10) {
/*
* The tablet reports tilt as roughly sin(a)*21 (18 means 60
* degrees).
*
* This array stores angles as radians * 100, corresponding to
* reported values up to 60 degrees, as expected by userspace.
*/
static const s8 tilt_to_radians[] = {
0, 5, 10, 14, 19, 24, 29, 34, 40, 45,
50, 56, 62, 68, 74, 81, 88, 96, 105
};
s8 tilt_x = (s8)data[8];
s8 tilt_y = (s8)data[9];
s8 sign_x = tilt_x >= 0 ? 1 : -1;
s8 sign_y = tilt_y >= 0 ? 1 : -1;
tilt_x *= sign_x;
tilt_y *= sign_y;
/*
* Reverse the Y Tilt direction to match the HID standard and
* userspace expectations. See HID Usage Tables v1.12 16.3.2
* Tilt Orientation.
*/
sign_y *= -1;
/*
* This effectively clamps reported tilt to 60 degrees - the
* range expected by userspace
*/
if (tilt_x > ARRAY_SIZE(tilt_to_radians) - 1)
tilt_x = ARRAY_SIZE(tilt_to_radians) - 1;
if (tilt_y > ARRAY_SIZE(tilt_to_radians) - 1)
tilt_y = ARRAY_SIZE(tilt_to_radians) - 1;
data[8] = tilt_to_radians[tilt_x] * sign_x;
data[9] = tilt_to_radians[tilt_y] * sign_y;
}
return 0;
}
static const struct hid_device_id waltop_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_Q_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_PID_0038) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP,
USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
{ }
};
MODULE_DEVICE_TABLE(hid, waltop_devices);
static struct hid_driver waltop_driver = {
.name = "waltop",
.id_table = waltop_devices,
.report_fixup = waltop_report_fixup,
.raw_event = waltop_raw_event,
};
module_hid_driver(waltop_driver);
MODULE_LICENSE("GPL");
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