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// SPDX-License-Identifier: GPL-2.0+
/*
* Quirks for I2C-HID devices that do not supply proper descriptors
*
* Copyright (c) 2018 Julian Sax <jsbc@gmx.de>
*
*/
#include <linux/types.h>
#include <linux/dmi.h>
#include <linux/mod_devicetable.h>
#include "i2c-hid.h"
struct i2c_hid_desc_override {
union {
struct i2c_hid_desc *i2c_hid_desc;
uint8_t *i2c_hid_desc_buffer;
};
uint8_t *hid_report_desc;
unsigned int hid_report_desc_size;
uint8_t *i2c_name;
};
/*
* descriptors for the SIPODEV SP1064 touchpad
*
* This device does not supply any descriptors and on windows a filter
* driver operates between the i2c-hid layer and the device and injects
* these descriptors when the device is prompted. The descriptors were
* extracted by listening to the i2c-hid traffic that occurs between the
* windows filter driver and the windows i2c-hid driver.
*/
static const struct i2c_hid_desc_override sipodev_desc = {
.i2c_hid_desc_buffer = (uint8_t [])
{0x1e, 0x00, /* Length of descriptor */
0x00, 0x01, /* Version of descriptor */
0xdb, 0x01, /* Length of report descriptor */
0x21, 0x00, /* Location of report descriptor */
0x24, 0x00, /* Location of input report */
0x1b, 0x00, /* Max input report length */
0x25, 0x00, /* Location of output report */
0x11, 0x00, /* Max output report length */
0x22, 0x00, /* Location of command register */
0x23, 0x00, /* Location of data register */
0x11, 0x09, /* Vendor ID */
0x88, 0x52, /* Product ID */
0x06, 0x00, /* Version ID */
0x00, 0x00, 0x00, 0x00 /* Reserved */
},
.hid_report_desc = (uint8_t [])
{0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x01, /* Report ID (1), */
0x09, 0x01, /* Usage (Pointer), */
0xA1, 0x00, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x02, /* Usage Maximum (02h), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x06, /* Report Count (6), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x05, /* Usage (Touchpad), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x04, /* Report ID (4), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x02, /* Collection (Logical), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x47, /* Usage (Touch Valid), */
0x09, 0x42, /* Usage (Tip Switch), */
0x95, 0x02, /* Report Count (2), */
0x75, 0x01, /* Report Size (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x03, /* Report Size (3), */
0x25, 0x05, /* Logical Maximum (5), */
0x09, 0x51, /* Usage (Contact Identifier), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x26, 0x44, 0x0A, /* Logical Maximum (2628), */
0x75, 0x10, /* Report Size (16), */
0x55, 0x0E, /* Unit Exponent (14), */
0x65, 0x11, /* Unit (Centimeter), */
0x09, 0x30, /* Usage (X), */
0x46, 0x1A, 0x04, /* Physical Maximum (1050), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x46, 0xBC, 0x02, /* Physical Maximum (700), */
0x26, 0x34, 0x05, /* Logical Maximum (1332), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x02, /* Collection (Logical), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x47, /* Usage (Touch Valid), */
0x09, 0x42, /* Usage (Tip Switch), */
0x95, 0x02, /* Report Count (2), */
0x75, 0x01, /* Report Size (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x03, /* Report Size (3), */
0x25, 0x05, /* Logical Maximum (5), */
0x09, 0x51, /* Usage (Contact Identifier), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x26, 0x44, 0x0A, /* Logical Maximum (2628), */
0x75, 0x10, /* Report Size (16), */
0x09, 0x30, /* Usage (X), */
0x46, 0x1A, 0x04, /* Physical Maximum (1050), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x46, 0xBC, 0x02, /* Physical Maximum (700), */
0x26, 0x34, 0x05, /* Logical Maximum (1332), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x02, /* Collection (Logical), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x47, /* Usage (Touch Valid), */
0x09, 0x42, /* Usage (Tip Switch), */
0x95, 0x02, /* Report Count (2), */
0x75, 0x01, /* Report Size (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x03, /* Report Size (3), */
0x25, 0x05, /* Logical Maximum (5), */
0x09, 0x51, /* Usage (Contact Identifier), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x26, 0x44, 0x0A, /* Logical Maximum (2628), */
0x75, 0x10, /* Report Size (16), */
0x09, 0x30, /* Usage (X), */
0x46, 0x1A, 0x04, /* Physical Maximum (1050), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x46, 0xBC, 0x02, /* Physical Maximum (700), */
0x26, 0x34, 0x05, /* Logical Maximum (1332), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x02, /* Collection (Logical), */
0x25, 0x01, /* Logical Maximum (1), */
0x09, 0x47, /* Usage (Touch Valid), */
0x09, 0x42, /* Usage (Tip Switch), */
0x95, 0x02, /* Report Count (2), */
0x75, 0x01, /* Report Size (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x01, /* Report Count (1), */
0x75, 0x03, /* Report Size (3), */
0x25, 0x05, /* Logical Maximum (5), */
0x09, 0x51, /* Usage (Contact Identifier), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x01, /* Usage Page (Desktop), */
0x26, 0x44, 0x0A, /* Logical Maximum (2628), */
0x75, 0x10, /* Report Size (16), */
0x09, 0x30, /* Usage (X), */
0x46, 0x1A, 0x04, /* Physical Maximum (1050), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x46, 0xBC, 0x02, /* Physical Maximum (700), */
0x26, 0x34, 0x05, /* Logical Maximum (1332), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x55, 0x0C, /* Unit Exponent (12), */
0x66, 0x01, 0x10, /* Unit (Seconds), */
0x47, 0xFF, 0xFF, 0x00, 0x00,/* Physical Maximum (65535), */
0x27, 0xFF, 0xFF, 0x00, 0x00,/* Logical Maximum (65535), */
0x75, 0x10, /* Report Size (16), */
0x95, 0x01, /* Report Count (1), */
0x09, 0x56, /* Usage (Scan Time), */
0x81, 0x02, /* Input (Variable), */
0x09, 0x54, /* Usage (Contact Count), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x81, 0x02, /* Input (Variable), */
0x05, 0x09, /* Usage Page (Button), */
0x09, 0x01, /* Usage (01h), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x07, /* Report Count (7), */
0x81, 0x03, /* Input (Constant, Variable), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x85, 0x02, /* Report ID (2), */
0x09, 0x55, /* Usage (Contact Count Maximum), */
0x09, 0x59, /* Usage (59h), */
0x75, 0x04, /* Report Size (4), */
0x95, 0x02, /* Report Count (2), */
0x25, 0x0F, /* Logical Maximum (15), */
0xB1, 0x02, /* Feature (Variable), */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x85, 0x07, /* Report ID (7), */
0x09, 0x60, /* Usage (60h), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x01, /* Report Count (1), */
0x25, 0x01, /* Logical Maximum (1), */
0xB1, 0x02, /* Feature (Variable), */
0x95, 0x07, /* Report Count (7), */
0xB1, 0x03, /* Feature (Constant, Variable), */
0x85, 0x06, /* Report ID (6), */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0xC5, /* Usage (C5h), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x96, 0x00, 0x01, /* Report Count (256), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
0x09, 0x01, /* Usage (01h), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x0D, /* Report ID (13), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x02, /* Usage Maximum (02h), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0x05, 0x0D, /* Usage Page (Digitizer), */
0x09, 0x0E, /* Usage (Configuration), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x03, /* Report ID (3), */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x02, /* Collection (Logical), */
0x09, 0x52, /* Usage (Device Mode), */
0x25, 0x0A, /* Logical Maximum (10), */
0x95, 0x01, /* Report Count (1), */
0xB1, 0x02, /* Feature (Variable), */
0xC0, /* End Collection, */
0x09, 0x22, /* Usage (Finger), */
0xA1, 0x00, /* Collection (Physical), */
0x85, 0x05, /* Report ID (5), */
0x09, 0x57, /* Usage (57h), */
0x09, 0x58, /* Usage (58h), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x02, /* Report Count (2), */
0x25, 0x01, /* Logical Maximum (1), */
0xB1, 0x02, /* Feature (Variable), */
0x95, 0x06, /* Report Count (6), */
0xB1, 0x03, /* Feature (Constant, Variable),*/
0xC0, /* End Collection, */
0xC0 /* End Collection */
},
.hid_report_desc_size = 475,
.i2c_name = "SYNA3602:00"
};
static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
{
.ident = "Teclast F6 Pro",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F6 Pro"),
},
.driver_data = (void *)&sipodev_desc
},
{
.ident = "Teclast F7",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F7"),
},
.driver_data = (void *)&sipodev_desc
},
{
.ident = "Trekstor Primebook C13",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C13"),
},
.driver_data = (void *)&sipodev_desc
},
{
.ident = "Trekstor Primebook C11",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C11"),
},
.driver_data = (void *)&sipodev_desc
},
{
.ident = "Direkt-Tek DTLAPY116-2",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "DTLAPY116-2"),
},
.driver_data = (void *)&sipodev_desc
},
{
.ident = "Mediacom Flexbook Edge 11",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
},
.driver_data = (void *)&sipodev_desc
},
{ } /* Terminate list */
};
struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
{
struct i2c_hid_desc_override *override;
const struct dmi_system_id *system_id;
system_id = dmi_first_match(i2c_hid_dmi_desc_override_table);
if (!system_id)
return NULL;
override = system_id->driver_data;
if (strcmp(override->i2c_name, i2c_name))
return NULL;
return override->i2c_hid_desc;
}
char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
unsigned int *size)
{
struct i2c_hid_desc_override *override;
const struct dmi_system_id *system_id;
system_id = dmi_first_match(i2c_hid_dmi_desc_override_table);
if (!system_id)
return NULL;
override = system_id->driver_data;
if (strcmp(override->i2c_name, i2c_name))
return NULL;
*size = override->hid_report_desc_size;
return override->hid_report_desc;
}
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