From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/hid/hid-waltop.c | 745 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 745 insertions(+) create mode 100644 drivers/hid/hid-waltop.c (limited to 'drivers/hid/hid-waltop.c') diff --git a/drivers/hid/hid-waltop.c b/drivers/hid/hid-waltop.c new file mode 100644 index 0000000000..bc355b1a5b --- /dev/null +++ b/drivers/hid/hid-waltop.c @@ -0,0 +1,745 @@ +// 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 +#include +#include + +#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"); -- cgit v1.2.3