Julian Sax | f0c9eab | 2018-09-19 11:46:23 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | |
| 3 | /* |
| 4 | * Quirks for I2C-HID devices that do not supply proper descriptors |
| 5 | * |
| 6 | * Copyright (c) 2018 Julian Sax <jsbc@gmx.de> |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | #include <linux/types.h> |
| 11 | #include <linux/dmi.h> |
| 12 | #include <linux/mod_devicetable.h> |
| 13 | |
| 14 | #include "i2c-hid.h" |
| 15 | |
| 16 | |
| 17 | struct i2c_hid_desc_override { |
| 18 | union { |
| 19 | struct i2c_hid_desc *i2c_hid_desc; |
| 20 | uint8_t *i2c_hid_desc_buffer; |
| 21 | }; |
| 22 | uint8_t *hid_report_desc; |
| 23 | unsigned int hid_report_desc_size; |
| 24 | uint8_t *i2c_name; |
| 25 | }; |
| 26 | |
| 27 | |
| 28 | /* |
| 29 | * descriptors for the SIPODEV SP1064 touchpad |
| 30 | * |
| 31 | * This device does not supply any descriptors and on windows a filter |
| 32 | * driver operates between the i2c-hid layer and the device and injects |
| 33 | * these descriptors when the device is prompted. The descriptors were |
| 34 | * extracted by listening to the i2c-hid traffic that occurs between the |
| 35 | * windows filter driver and the windows i2c-hid driver. |
| 36 | */ |
| 37 | |
| 38 | static const struct i2c_hid_desc_override sipodev_desc = { |
| 39 | .i2c_hid_desc_buffer = (uint8_t []) |
| 40 | {0x1e, 0x00, /* Length of descriptor */ |
| 41 | 0x00, 0x01, /* Version of descriptor */ |
| 42 | 0xdb, 0x01, /* Length of report descriptor */ |
| 43 | 0x21, 0x00, /* Location of report descriptor */ |
| 44 | 0x24, 0x00, /* Location of input report */ |
| 45 | 0x1b, 0x00, /* Max input report length */ |
| 46 | 0x25, 0x00, /* Location of output report */ |
| 47 | 0x11, 0x00, /* Max output report length */ |
| 48 | 0x22, 0x00, /* Location of command register */ |
| 49 | 0x23, 0x00, /* Location of data register */ |
| 50 | 0x11, 0x09, /* Vendor ID */ |
| 51 | 0x88, 0x52, /* Product ID */ |
| 52 | 0x06, 0x00, /* Version ID */ |
| 53 | 0x00, 0x00, 0x00, 0x00 /* Reserved */ |
| 54 | }, |
| 55 | |
| 56 | .hid_report_desc = (uint8_t []) |
| 57 | {0x05, 0x01, /* Usage Page (Desktop), */ |
| 58 | 0x09, 0x02, /* Usage (Mouse), */ |
| 59 | 0xA1, 0x01, /* Collection (Application), */ |
| 60 | 0x85, 0x01, /* Report ID (1), */ |
| 61 | 0x09, 0x01, /* Usage (Pointer), */ |
| 62 | 0xA1, 0x00, /* Collection (Physical), */ |
| 63 | 0x05, 0x09, /* Usage Page (Button), */ |
| 64 | 0x19, 0x01, /* Usage Minimum (01h), */ |
| 65 | 0x29, 0x02, /* Usage Maximum (02h), */ |
| 66 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 67 | 0x75, 0x01, /* Report Size (1), */ |
| 68 | 0x95, 0x02, /* Report Count (2), */ |
| 69 | 0x81, 0x02, /* Input (Variable), */ |
| 70 | 0x95, 0x06, /* Report Count (6), */ |
| 71 | 0x81, 0x01, /* Input (Constant), */ |
| 72 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 73 | 0x09, 0x30, /* Usage (X), */ |
| 74 | 0x09, 0x31, /* Usage (Y), */ |
| 75 | 0x15, 0x81, /* Logical Minimum (-127), */ |
| 76 | 0x25, 0x7F, /* Logical Maximum (127), */ |
| 77 | 0x75, 0x08, /* Report Size (8), */ |
| 78 | 0x95, 0x02, /* Report Count (2), */ |
| 79 | 0x81, 0x06, /* Input (Variable, Relative), */ |
| 80 | 0xC0, /* End Collection, */ |
| 81 | 0xC0, /* End Collection, */ |
| 82 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 83 | 0x09, 0x05, /* Usage (Touchpad), */ |
| 84 | 0xA1, 0x01, /* Collection (Application), */ |
| 85 | 0x85, 0x04, /* Report ID (4), */ |
| 86 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 87 | 0x09, 0x22, /* Usage (Finger), */ |
| 88 | 0xA1, 0x02, /* Collection (Logical), */ |
| 89 | 0x15, 0x00, /* Logical Minimum (0), */ |
| 90 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 91 | 0x09, 0x47, /* Usage (Touch Valid), */ |
| 92 | 0x09, 0x42, /* Usage (Tip Switch), */ |
| 93 | 0x95, 0x02, /* Report Count (2), */ |
| 94 | 0x75, 0x01, /* Report Size (1), */ |
| 95 | 0x81, 0x02, /* Input (Variable), */ |
| 96 | 0x95, 0x01, /* Report Count (1), */ |
| 97 | 0x75, 0x03, /* Report Size (3), */ |
| 98 | 0x25, 0x05, /* Logical Maximum (5), */ |
| 99 | 0x09, 0x51, /* Usage (Contact Identifier), */ |
| 100 | 0x81, 0x02, /* Input (Variable), */ |
| 101 | 0x75, 0x01, /* Report Size (1), */ |
| 102 | 0x95, 0x03, /* Report Count (3), */ |
| 103 | 0x81, 0x03, /* Input (Constant, Variable), */ |
| 104 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 105 | 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ |
| 106 | 0x75, 0x10, /* Report Size (16), */ |
| 107 | 0x55, 0x0E, /* Unit Exponent (14), */ |
| 108 | 0x65, 0x11, /* Unit (Centimeter), */ |
| 109 | 0x09, 0x30, /* Usage (X), */ |
| 110 | 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ |
| 111 | 0x95, 0x01, /* Report Count (1), */ |
| 112 | 0x81, 0x02, /* Input (Variable), */ |
| 113 | 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ |
| 114 | 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ |
| 115 | 0x09, 0x31, /* Usage (Y), */ |
| 116 | 0x81, 0x02, /* Input (Variable), */ |
| 117 | 0xC0, /* End Collection, */ |
| 118 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 119 | 0x09, 0x22, /* Usage (Finger), */ |
| 120 | 0xA1, 0x02, /* Collection (Logical), */ |
| 121 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 122 | 0x09, 0x47, /* Usage (Touch Valid), */ |
| 123 | 0x09, 0x42, /* Usage (Tip Switch), */ |
| 124 | 0x95, 0x02, /* Report Count (2), */ |
| 125 | 0x75, 0x01, /* Report Size (1), */ |
| 126 | 0x81, 0x02, /* Input (Variable), */ |
| 127 | 0x95, 0x01, /* Report Count (1), */ |
| 128 | 0x75, 0x03, /* Report Size (3), */ |
| 129 | 0x25, 0x05, /* Logical Maximum (5), */ |
| 130 | 0x09, 0x51, /* Usage (Contact Identifier), */ |
| 131 | 0x81, 0x02, /* Input (Variable), */ |
| 132 | 0x75, 0x01, /* Report Size (1), */ |
| 133 | 0x95, 0x03, /* Report Count (3), */ |
| 134 | 0x81, 0x03, /* Input (Constant, Variable), */ |
| 135 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 136 | 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ |
| 137 | 0x75, 0x10, /* Report Size (16), */ |
| 138 | 0x09, 0x30, /* Usage (X), */ |
| 139 | 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ |
| 140 | 0x95, 0x01, /* Report Count (1), */ |
| 141 | 0x81, 0x02, /* Input (Variable), */ |
| 142 | 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ |
| 143 | 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ |
| 144 | 0x09, 0x31, /* Usage (Y), */ |
| 145 | 0x81, 0x02, /* Input (Variable), */ |
| 146 | 0xC0, /* End Collection, */ |
| 147 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 148 | 0x09, 0x22, /* Usage (Finger), */ |
| 149 | 0xA1, 0x02, /* Collection (Logical), */ |
| 150 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 151 | 0x09, 0x47, /* Usage (Touch Valid), */ |
| 152 | 0x09, 0x42, /* Usage (Tip Switch), */ |
| 153 | 0x95, 0x02, /* Report Count (2), */ |
| 154 | 0x75, 0x01, /* Report Size (1), */ |
| 155 | 0x81, 0x02, /* Input (Variable), */ |
| 156 | 0x95, 0x01, /* Report Count (1), */ |
| 157 | 0x75, 0x03, /* Report Size (3), */ |
| 158 | 0x25, 0x05, /* Logical Maximum (5), */ |
| 159 | 0x09, 0x51, /* Usage (Contact Identifier), */ |
| 160 | 0x81, 0x02, /* Input (Variable), */ |
| 161 | 0x75, 0x01, /* Report Size (1), */ |
| 162 | 0x95, 0x03, /* Report Count (3), */ |
| 163 | 0x81, 0x03, /* Input (Constant, Variable), */ |
| 164 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 165 | 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ |
| 166 | 0x75, 0x10, /* Report Size (16), */ |
| 167 | 0x09, 0x30, /* Usage (X), */ |
| 168 | 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ |
| 169 | 0x95, 0x01, /* Report Count (1), */ |
| 170 | 0x81, 0x02, /* Input (Variable), */ |
| 171 | 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ |
| 172 | 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ |
| 173 | 0x09, 0x31, /* Usage (Y), */ |
| 174 | 0x81, 0x02, /* Input (Variable), */ |
| 175 | 0xC0, /* End Collection, */ |
| 176 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 177 | 0x09, 0x22, /* Usage (Finger), */ |
| 178 | 0xA1, 0x02, /* Collection (Logical), */ |
| 179 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 180 | 0x09, 0x47, /* Usage (Touch Valid), */ |
| 181 | 0x09, 0x42, /* Usage (Tip Switch), */ |
| 182 | 0x95, 0x02, /* Report Count (2), */ |
| 183 | 0x75, 0x01, /* Report Size (1), */ |
| 184 | 0x81, 0x02, /* Input (Variable), */ |
| 185 | 0x95, 0x01, /* Report Count (1), */ |
| 186 | 0x75, 0x03, /* Report Size (3), */ |
| 187 | 0x25, 0x05, /* Logical Maximum (5), */ |
| 188 | 0x09, 0x51, /* Usage (Contact Identifier), */ |
| 189 | 0x81, 0x02, /* Input (Variable), */ |
| 190 | 0x75, 0x01, /* Report Size (1), */ |
| 191 | 0x95, 0x03, /* Report Count (3), */ |
| 192 | 0x81, 0x03, /* Input (Constant, Variable), */ |
| 193 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 194 | 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ |
| 195 | 0x75, 0x10, /* Report Size (16), */ |
| 196 | 0x09, 0x30, /* Usage (X), */ |
| 197 | 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ |
| 198 | 0x95, 0x01, /* Report Count (1), */ |
| 199 | 0x81, 0x02, /* Input (Variable), */ |
| 200 | 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ |
| 201 | 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ |
| 202 | 0x09, 0x31, /* Usage (Y), */ |
| 203 | 0x81, 0x02, /* Input (Variable), */ |
| 204 | 0xC0, /* End Collection, */ |
| 205 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 206 | 0x55, 0x0C, /* Unit Exponent (12), */ |
| 207 | 0x66, 0x01, 0x10, /* Unit (Seconds), */ |
| 208 | 0x47, 0xFF, 0xFF, 0x00, 0x00,/* Physical Maximum (65535), */ |
| 209 | 0x27, 0xFF, 0xFF, 0x00, 0x00,/* Logical Maximum (65535), */ |
| 210 | 0x75, 0x10, /* Report Size (16), */ |
| 211 | 0x95, 0x01, /* Report Count (1), */ |
| 212 | 0x09, 0x56, /* Usage (Scan Time), */ |
| 213 | 0x81, 0x02, /* Input (Variable), */ |
| 214 | 0x09, 0x54, /* Usage (Contact Count), */ |
| 215 | 0x25, 0x7F, /* Logical Maximum (127), */ |
| 216 | 0x75, 0x08, /* Report Size (8), */ |
| 217 | 0x81, 0x02, /* Input (Variable), */ |
| 218 | 0x05, 0x09, /* Usage Page (Button), */ |
| 219 | 0x09, 0x01, /* Usage (01h), */ |
| 220 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 221 | 0x75, 0x01, /* Report Size (1), */ |
| 222 | 0x95, 0x01, /* Report Count (1), */ |
| 223 | 0x81, 0x02, /* Input (Variable), */ |
| 224 | 0x95, 0x07, /* Report Count (7), */ |
| 225 | 0x81, 0x03, /* Input (Constant, Variable), */ |
| 226 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 227 | 0x85, 0x02, /* Report ID (2), */ |
| 228 | 0x09, 0x55, /* Usage (Contact Count Maximum), */ |
| 229 | 0x09, 0x59, /* Usage (59h), */ |
| 230 | 0x75, 0x04, /* Report Size (4), */ |
| 231 | 0x95, 0x02, /* Report Count (2), */ |
| 232 | 0x25, 0x0F, /* Logical Maximum (15), */ |
| 233 | 0xB1, 0x02, /* Feature (Variable), */ |
| 234 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 235 | 0x85, 0x07, /* Report ID (7), */ |
| 236 | 0x09, 0x60, /* Usage (60h), */ |
| 237 | 0x75, 0x01, /* Report Size (1), */ |
| 238 | 0x95, 0x01, /* Report Count (1), */ |
| 239 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 240 | 0xB1, 0x02, /* Feature (Variable), */ |
| 241 | 0x95, 0x07, /* Report Count (7), */ |
| 242 | 0xB1, 0x03, /* Feature (Constant, Variable), */ |
| 243 | 0x85, 0x06, /* Report ID (6), */ |
| 244 | 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ |
| 245 | 0x09, 0xC5, /* Usage (C5h), */ |
| 246 | 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ |
| 247 | 0x75, 0x08, /* Report Size (8), */ |
| 248 | 0x96, 0x00, 0x01, /* Report Count (256), */ |
| 249 | 0xB1, 0x02, /* Feature (Variable), */ |
| 250 | 0xC0, /* End Collection, */ |
| 251 | 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ |
| 252 | 0x09, 0x01, /* Usage (01h), */ |
| 253 | 0xA1, 0x01, /* Collection (Application), */ |
| 254 | 0x85, 0x0D, /* Report ID (13), */ |
| 255 | 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ |
| 256 | 0x19, 0x01, /* Usage Minimum (01h), */ |
| 257 | 0x29, 0x02, /* Usage Maximum (02h), */ |
| 258 | 0x75, 0x08, /* Report Size (8), */ |
| 259 | 0x95, 0x02, /* Report Count (2), */ |
| 260 | 0xB1, 0x02, /* Feature (Variable), */ |
| 261 | 0xC0, /* End Collection, */ |
| 262 | 0x05, 0x0D, /* Usage Page (Digitizer), */ |
| 263 | 0x09, 0x0E, /* Usage (Configuration), */ |
| 264 | 0xA1, 0x01, /* Collection (Application), */ |
| 265 | 0x85, 0x03, /* Report ID (3), */ |
| 266 | 0x09, 0x22, /* Usage (Finger), */ |
| 267 | 0xA1, 0x02, /* Collection (Logical), */ |
| 268 | 0x09, 0x52, /* Usage (Device Mode), */ |
| 269 | 0x25, 0x0A, /* Logical Maximum (10), */ |
| 270 | 0x95, 0x01, /* Report Count (1), */ |
| 271 | 0xB1, 0x02, /* Feature (Variable), */ |
| 272 | 0xC0, /* End Collection, */ |
| 273 | 0x09, 0x22, /* Usage (Finger), */ |
| 274 | 0xA1, 0x00, /* Collection (Physical), */ |
| 275 | 0x85, 0x05, /* Report ID (5), */ |
| 276 | 0x09, 0x57, /* Usage (57h), */ |
| 277 | 0x09, 0x58, /* Usage (58h), */ |
| 278 | 0x75, 0x01, /* Report Size (1), */ |
| 279 | 0x95, 0x02, /* Report Count (2), */ |
| 280 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 281 | 0xB1, 0x02, /* Feature (Variable), */ |
| 282 | 0x95, 0x06, /* Report Count (6), */ |
| 283 | 0xB1, 0x03, /* Feature (Constant, Variable),*/ |
| 284 | 0xC0, /* End Collection, */ |
| 285 | 0xC0 /* End Collection */ |
| 286 | }, |
| 287 | .hid_report_desc_size = 475, |
| 288 | .i2c_name = "SYNA3602:00" |
| 289 | }; |
| 290 | |
| 291 | |
| 292 | static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = { |
| 293 | { |
| 294 | .ident = "Teclast F6 Pro", |
| 295 | .matches = { |
| 296 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"), |
| 297 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F6 Pro"), |
| 298 | }, |
| 299 | .driver_data = (void *)&sipodev_desc |
| 300 | }, |
| 301 | { |
| 302 | .ident = "Teclast F7", |
| 303 | .matches = { |
| 304 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"), |
| 305 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F7"), |
| 306 | }, |
| 307 | .driver_data = (void *)&sipodev_desc |
| 308 | }, |
| 309 | { |
| 310 | .ident = "Trekstor Primebook C13", |
| 311 | .matches = { |
| 312 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"), |
| 313 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C13"), |
| 314 | }, |
| 315 | .driver_data = (void *)&sipodev_desc |
| 316 | }, |
| 317 | { |
| 318 | .ident = "Trekstor Primebook C11", |
| 319 | .matches = { |
| 320 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"), |
| 321 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C11"), |
| 322 | }, |
| 323 | .driver_data = (void *)&sipodev_desc |
| 324 | }, |
| 325 | { |
| 326 | .ident = "Direkt-Tek DTLAPY116-2", |
| 327 | .matches = { |
| 328 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"), |
| 329 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "DTLAPY116-2"), |
| 330 | }, |
| 331 | .driver_data = (void *)&sipodev_desc |
| 332 | }, |
| 333 | { |
| 334 | .ident = "Mediacom Flexbook Edge 11", |
| 335 | .matches = { |
| 336 | DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"), |
| 337 | DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"), |
| 338 | }, |
| 339 | .driver_data = (void *)&sipodev_desc |
| 340 | } |
| 341 | }; |
| 342 | |
| 343 | |
| 344 | struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name) |
| 345 | { |
| 346 | struct i2c_hid_desc_override *override; |
| 347 | const struct dmi_system_id *system_id; |
| 348 | |
| 349 | system_id = dmi_first_match(i2c_hid_dmi_desc_override_table); |
| 350 | if (!system_id) |
| 351 | return NULL; |
| 352 | |
| 353 | override = system_id->driver_data; |
| 354 | if (strcmp(override->i2c_name, i2c_name)) |
| 355 | return NULL; |
| 356 | |
| 357 | return override->i2c_hid_desc; |
| 358 | } |
| 359 | |
| 360 | char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, |
| 361 | unsigned int *size) |
| 362 | { |
| 363 | struct i2c_hid_desc_override *override; |
| 364 | const struct dmi_system_id *system_id; |
| 365 | |
| 366 | system_id = dmi_first_match(i2c_hid_dmi_desc_override_table); |
| 367 | if (!system_id) |
| 368 | return NULL; |
| 369 | |
| 370 | override = system_id->driver_data; |
| 371 | if (strcmp(override->i2c_name, i2c_name)) |
| 372 | return NULL; |
| 373 | |
| 374 | *size = override->hid_report_desc_size; |
| 375 | return override->hid_report_desc; |
| 376 | } |