1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2000-2001 Vojtech Pavlik 4 * Copyright (c) 2006-2010 Jiri Kosina 5 * 6 * HID to Linux Input mapping 7 */ 8 9 /* 10 * 11 * Should you need to contact me, the author, you can do so either by 12 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 13 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 14 */ 15 16 #include <linux/module.h> 17 #include <linux/slab.h> 18 #include <linux/kernel.h> 19 20 #include <linux/hid.h> 21 #include <linux/hid-debug.h> 22 23 #include "hid-ids.h" 24 25 #define unk KEY_UNKNOWN 26 27 static const unsigned char hid_keyboard[256] = { 28 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 29 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, 30 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, 31 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, 32 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, 33 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, 34 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, 35 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, 36 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk, 37 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk, 38 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 39 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk, 40 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 41 unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk, 42 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, 43 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk 44 }; 45 46 static const struct { 47 __s32 x; 48 __s32 y; 49 } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; 50 51 struct usage_priority { 52 __u32 usage; /* the HID usage associated */ 53 bool global; /* we assume all usages to be slotted, 54 * unless global 55 */ 56 unsigned int slot_overwrite; /* for globals: allows to set the usage 57 * before or after the slots 58 */ 59 }; 60 61 /* 62 * hid-input will convert this list into priorities: 63 * the first element will have the highest priority 64 * (the length of the following array) and the last 65 * element the lowest (1). 66 * 67 * hid-input will then shift the priority by 8 bits to leave some space 68 * in case drivers want to interleave other fields. 69 * 70 * To accommodate slotted devices, the slot priority is 71 * defined in the next 8 bits (defined by 0xff - slot). 72 * 73 * If drivers want to add fields before those, hid-input will 74 * leave out the first 8 bits of the priority value. 75 * 76 * This still leaves us 65535 individual priority values. 77 */ 78 static const struct usage_priority hidinput_usages_priorities[] = { 79 { /* Eraser (eraser touching) must always come before tipswitch */ 80 .usage = HID_DG_ERASER, 81 }, 82 { /* Invert must always come before In Range */ 83 .usage = HID_DG_INVERT, 84 }, 85 { /* Is the tip of the tool touching? */ 86 .usage = HID_DG_TIPSWITCH, 87 }, 88 { /* Tip Pressure might emulate tip switch */ 89 .usage = HID_DG_TIPPRESSURE, 90 }, 91 { /* In Range needs to come after the other tool states */ 92 .usage = HID_DG_INRANGE, 93 }, 94 }; 95 96 #define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c)) 97 #define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c)) 98 #define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c)) 99 #define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c)) 100 #define map_msc(c) hid_map_usage(hidinput, usage, &bit, &max, EV_MSC, (c)) 101 102 #define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ 103 &max, EV_ABS, (c)) 104 #define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ 105 &max, EV_KEY, (c)) 106 107 static bool match_scancode(struct hid_usage *usage, 108 unsigned int cur_idx, unsigned int scancode) 109 { 110 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode; 111 } 112 113 static bool match_keycode(struct hid_usage *usage, 114 unsigned int cur_idx, unsigned int keycode) 115 { 116 /* 117 * We should exclude unmapped usages when doing lookup by keycode. 118 */ 119 return (usage->type == EV_KEY && usage->code == keycode); 120 } 121 122 static bool match_index(struct hid_usage *usage, 123 unsigned int cur_idx, unsigned int idx) 124 { 125 return cur_idx == idx; 126 } 127 128 typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage, 129 unsigned int cur_idx, unsigned int val); 130 131 static struct hid_usage *hidinput_find_key(struct hid_device *hid, 132 hid_usage_cmp_t match, 133 unsigned int value, 134 unsigned int *usage_idx) 135 { 136 unsigned int i, j, k, cur_idx = 0; 137 struct hid_report *report; 138 struct hid_usage *usage; 139 140 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 141 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 142 for (i = 0; i < report->maxfield; i++) { 143 for (j = 0; j < report->field[i]->maxusage; j++) { 144 usage = report->field[i]->usage + j; 145 if (usage->type == EV_KEY || usage->type == 0) { 146 if (match(usage, cur_idx, value)) { 147 if (usage_idx) 148 *usage_idx = cur_idx; 149 return usage; 150 } 151 cur_idx++; 152 } 153 } 154 } 155 } 156 } 157 return NULL; 158 } 159 160 static struct hid_usage *hidinput_locate_usage(struct hid_device *hid, 161 const struct input_keymap_entry *ke, 162 unsigned int *index) 163 { 164 struct hid_usage *usage; 165 unsigned int scancode; 166 167 if (ke->flags & INPUT_KEYMAP_BY_INDEX) 168 usage = hidinput_find_key(hid, match_index, ke->index, index); 169 else if (input_scancode_to_scalar(ke, &scancode) == 0) 170 usage = hidinput_find_key(hid, match_scancode, scancode, index); 171 else 172 usage = NULL; 173 174 return usage; 175 } 176 177 static int hidinput_getkeycode(struct input_dev *dev, 178 struct input_keymap_entry *ke) 179 { 180 struct hid_device *hid = input_get_drvdata(dev); 181 struct hid_usage *usage; 182 unsigned int scancode, index; 183 184 usage = hidinput_locate_usage(hid, ke, &index); 185 if (usage) { 186 ke->keycode = usage->type == EV_KEY ? 187 usage->code : KEY_RESERVED; 188 ke->index = index; 189 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE); 190 ke->len = sizeof(scancode); 191 memcpy(ke->scancode, &scancode, sizeof(scancode)); 192 return 0; 193 } 194 195 return -EINVAL; 196 } 197 198 static int hidinput_setkeycode(struct input_dev *dev, 199 const struct input_keymap_entry *ke, 200 unsigned int *old_keycode) 201 { 202 struct hid_device *hid = input_get_drvdata(dev); 203 struct hid_usage *usage; 204 205 usage = hidinput_locate_usage(hid, ke, NULL); 206 if (usage) { 207 *old_keycode = usage->type == EV_KEY ? 208 usage->code : KEY_RESERVED; 209 usage->type = EV_KEY; 210 usage->code = ke->keycode; 211 212 clear_bit(*old_keycode, dev->keybit); 213 set_bit(usage->code, dev->keybit); 214 dbg_hid("Assigned keycode %d to HID usage code %x\n", 215 usage->code, usage->hid); 216 217 /* 218 * Set the keybit for the old keycode if the old keycode is used 219 * by another key 220 */ 221 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL)) 222 set_bit(*old_keycode, dev->keybit); 223 224 return 0; 225 } 226 227 return -EINVAL; 228 } 229 230 231 /** 232 * hidinput_calc_abs_res - calculate an absolute axis resolution 233 * @field: the HID report field to calculate resolution for 234 * @code: axis code 235 * 236 * The formula is: 237 * (logical_maximum - logical_minimum) 238 * resolution = ---------------------------------------------------------- 239 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent 240 * 241 * as seen in the HID specification v1.11 6.2.2.7 Global Items. 242 * 243 * Only exponent 1 length units are processed. Centimeters and inches are 244 * converted to millimeters. Degrees are converted to radians. 245 */ 246 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) 247 { 248 __s32 unit_exponent = field->unit_exponent; 249 __s32 logical_extents = field->logical_maximum - 250 field->logical_minimum; 251 __s32 physical_extents = field->physical_maximum - 252 field->physical_minimum; 253 __s32 prev; 254 255 /* Check if the extents are sane */ 256 if (logical_extents <= 0 || physical_extents <= 0) 257 return 0; 258 259 /* 260 * Verify and convert units. 261 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding 262 */ 263 switch (code) { 264 case ABS_X: 265 case ABS_Y: 266 case ABS_Z: 267 case ABS_MT_POSITION_X: 268 case ABS_MT_POSITION_Y: 269 case ABS_MT_TOOL_X: 270 case ABS_MT_TOOL_Y: 271 case ABS_MT_TOUCH_MAJOR: 272 case ABS_MT_TOUCH_MINOR: 273 if (field->unit == 0x11) { /* If centimeters */ 274 /* Convert to millimeters */ 275 unit_exponent += 1; 276 } else if (field->unit == 0x13) { /* If inches */ 277 /* Convert to millimeters */ 278 prev = physical_extents; 279 physical_extents *= 254; 280 if (physical_extents < prev) 281 return 0; 282 unit_exponent -= 1; 283 } else { 284 return 0; 285 } 286 break; 287 288 case ABS_RX: 289 case ABS_RY: 290 case ABS_RZ: 291 case ABS_WHEEL: 292 case ABS_TILT_X: 293 case ABS_TILT_Y: 294 if (field->unit == 0x14) { /* If degrees */ 295 /* Convert to radians */ 296 prev = logical_extents; 297 logical_extents *= 573; 298 if (logical_extents < prev) 299 return 0; 300 unit_exponent += 1; 301 } else if (field->unit != 0x12) { /* If not radians */ 302 return 0; 303 } 304 break; 305 306 case ABS_PRESSURE: 307 case ABS_MT_PRESSURE: 308 if (field->unit == HID_UNIT_NEWTON) { 309 /* Convert to grams, 1 newton is 101.97 grams */ 310 prev = physical_extents; 311 physical_extents *= 10197; 312 if (physical_extents < prev) 313 return 0; 314 unit_exponent -= 2; 315 } else if (field->unit != HID_UNIT_GRAM) { 316 return 0; 317 } 318 break; 319 default: 320 return 0; 321 } 322 323 /* Apply negative unit exponent */ 324 for (; unit_exponent < 0; unit_exponent++) { 325 prev = logical_extents; 326 logical_extents *= 10; 327 if (logical_extents < prev) 328 return 0; 329 } 330 /* Apply positive unit exponent */ 331 for (; unit_exponent > 0; unit_exponent--) { 332 prev = physical_extents; 333 physical_extents *= 10; 334 if (physical_extents < prev) 335 return 0; 336 } 337 338 /* Calculate resolution */ 339 return DIV_ROUND_CLOSEST(logical_extents, physical_extents); 340 } 341 EXPORT_SYMBOL_GPL(hidinput_calc_abs_res); 342 343 #ifdef CONFIG_HID_BATTERY_STRENGTH 344 static enum power_supply_property hidinput_battery_props[] = { 345 POWER_SUPPLY_PROP_PRESENT, 346 POWER_SUPPLY_PROP_ONLINE, 347 POWER_SUPPLY_PROP_CAPACITY, 348 POWER_SUPPLY_PROP_MODEL_NAME, 349 POWER_SUPPLY_PROP_STATUS, 350 POWER_SUPPLY_PROP_SCOPE, 351 }; 352 353 #define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */ 354 #define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */ 355 #define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */ 356 #define HID_BATTERY_QUIRK_AVOID_QUERY (1 << 3) /* do not query the battery */ 357 #define HID_BATTERY_QUIRK_DYNAMIC (1 << 4) /* report present only after life signs */ 358 359 static const struct hid_device_id hid_battery_quirks[] = { 360 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 361 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO), 362 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, 363 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 364 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI), 365 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, 366 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 367 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI), 368 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, 369 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 370 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO), 371 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, 372 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 373 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI), 374 HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, 375 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 376 USB_DEVICE_ID_APPLE_MAGICTRACKPAD), 377 HID_BATTERY_QUIRK_IGNORE }, 378 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, 379 USB_DEVICE_ID_ELECOM_BM084), 380 HID_BATTERY_QUIRK_IGNORE }, 381 { HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL, 382 USB_DEVICE_ID_SYMBOL_SCANNER_3), 383 HID_BATTERY_QUIRK_IGNORE }, 384 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, 385 USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), 386 HID_BATTERY_QUIRK_IGNORE }, 387 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 388 USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD), 389 HID_BATTERY_QUIRK_IGNORE }, 390 { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L), 391 HID_BATTERY_QUIRK_AVOID_QUERY }, 392 { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW), 393 HID_BATTERY_QUIRK_AVOID_QUERY }, 394 { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW), 395 HID_BATTERY_QUIRK_AVOID_QUERY }, 396 { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_CHROMEBOOK_TROGDOR_POMPOM), 397 HID_BATTERY_QUIRK_AVOID_QUERY }, 398 { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_PRO_12IN), 399 HID_BATTERY_QUIRK_IGNORE }, 400 /* 401 * Elan HID touchscreens seem to all report a non present battery, 402 * set HID_BATTERY_QUIRK_IGNORE for all Elan I2C and USB HID devices. 403 */ 404 { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_BATTERY_QUIRK_DYNAMIC }, 405 { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_BATTERY_QUIRK_DYNAMIC }, 406 {} 407 }; 408 409 static unsigned find_battery_quirk(struct hid_device *hdev) 410 { 411 unsigned quirks = 0; 412 const struct hid_device_id *match; 413 414 match = hid_match_id(hdev, hid_battery_quirks); 415 if (match != NULL) 416 quirks = match->driver_data; 417 418 return quirks; 419 } 420 421 static int hidinput_scale_battery_capacity(struct hid_battery *bat, 422 int value) 423 { 424 if (bat->min < bat->max && 425 value >= bat->min && value <= bat->max) 426 value = ((value - bat->min) * 100) / 427 (bat->max - bat->min); 428 429 return value; 430 } 431 432 static int hidinput_query_battery_capacity(struct hid_battery *bat) 433 { 434 int ret; 435 436 u8 *buf __free(kfree) = kmalloc(4, GFP_KERNEL); 437 if (!buf) 438 return -ENOMEM; 439 440 ret = hid_hw_raw_request(bat->dev, bat->report_id, buf, 4, 441 bat->report_type, HID_REQ_GET_REPORT); 442 if (ret < 2) 443 return -ENODATA; 444 445 return hidinput_scale_battery_capacity(bat, buf[1]); 446 } 447 448 static int hidinput_get_battery_property(struct power_supply *psy, 449 enum power_supply_property prop, 450 union power_supply_propval *val) 451 { 452 struct hid_battery *bat = power_supply_get_drvdata(psy); 453 struct hid_device *dev = bat->dev; 454 int value; 455 int ret = 0; 456 457 switch (prop) { 458 case POWER_SUPPLY_PROP_ONLINE: 459 val->intval = 1; 460 break; 461 462 case POWER_SUPPLY_PROP_PRESENT: 463 val->intval = bat->present; 464 break; 465 466 case POWER_SUPPLY_PROP_CAPACITY: 467 if (bat->status != HID_BATTERY_REPORTED && 468 !bat->avoid_query) { 469 value = hidinput_query_battery_capacity(bat); 470 if (value < 0) 471 return value; 472 } else { 473 value = bat->capacity; 474 } 475 476 val->intval = value; 477 break; 478 479 case POWER_SUPPLY_PROP_MODEL_NAME: 480 val->strval = dev->name; 481 break; 482 483 case POWER_SUPPLY_PROP_STATUS: 484 if (bat->status != HID_BATTERY_REPORTED && 485 !bat->avoid_query) { 486 value = hidinput_query_battery_capacity(bat); 487 if (value < 0) 488 return value; 489 490 bat->capacity = value; 491 bat->status = HID_BATTERY_QUERIED; 492 } 493 494 if (bat->status == HID_BATTERY_UNKNOWN) 495 val->intval = POWER_SUPPLY_STATUS_UNKNOWN; 496 else 497 val->intval = bat->charge_status; 498 break; 499 500 case POWER_SUPPLY_PROP_SCOPE: 501 val->intval = POWER_SUPPLY_SCOPE_DEVICE; 502 break; 503 504 default: 505 ret = -EINVAL; 506 break; 507 } 508 509 return ret; 510 } 511 512 static struct hid_battery *hidinput_find_battery(struct hid_device *dev, 513 int report_id) 514 { 515 struct hid_battery *bat; 516 517 list_for_each_entry(bat, &dev->batteries, list) { 518 if (bat->report_id == report_id) 519 return bat; 520 } 521 return NULL; 522 } 523 524 static void hidinput_cleanup_battery(void *res) 525 { 526 struct hid_battery *bat = res; 527 528 list_del(&bat->list); 529 } 530 531 static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, 532 struct hid_field *field, bool is_percentage) 533 { 534 struct hid_battery *bat; 535 struct power_supply_desc *psy_desc; 536 struct power_supply_config psy_cfg = { 0 }; 537 unsigned quirks; 538 s32 min, max; 539 int error; 540 541 /* Check if battery for this report ID already exists */ 542 if (hidinput_find_battery(dev, field->report->id)) 543 return 0; 544 545 quirks = find_battery_quirk(dev); 546 547 hid_dbg(dev, "device %x:%x:%x %d quirks %d report_id %d\n", 548 dev->bus, dev->vendor, dev->product, dev->version, quirks, 549 field->report->id); 550 551 if (quirks & HID_BATTERY_QUIRK_IGNORE) 552 return 0; 553 554 bat = devm_kzalloc(&dev->dev, sizeof(*bat), GFP_KERNEL); 555 if (!bat) 556 return -ENOMEM; 557 558 psy_desc = devm_kzalloc(&dev->dev, sizeof(*psy_desc), GFP_KERNEL); 559 if (!psy_desc) { 560 error = -ENOMEM; 561 goto err_free_bat; 562 } 563 564 psy_desc->name = devm_kasprintf(&dev->dev, GFP_KERNEL, 565 "hid-%s-battery-%d", 566 strlen(dev->uniq) ? 567 dev->uniq : dev_name(&dev->dev), 568 field->report->id); 569 if (!psy_desc->name) { 570 error = -ENOMEM; 571 goto err_free_desc; 572 } 573 574 psy_desc->type = POWER_SUPPLY_TYPE_BATTERY; 575 psy_desc->properties = hidinput_battery_props; 576 psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props); 577 psy_desc->use_for_apm = 0; 578 psy_desc->get_property = hidinput_get_battery_property; 579 580 min = field->logical_minimum; 581 max = field->logical_maximum; 582 583 if (is_percentage || (quirks & HID_BATTERY_QUIRK_PERCENT)) { 584 min = 0; 585 max = 100; 586 } 587 588 if (quirks & HID_BATTERY_QUIRK_FEATURE) 589 report_type = HID_FEATURE_REPORT; 590 591 bat->dev = dev; 592 bat->min = min; 593 bat->max = max; 594 bat->report_type = report_type; 595 bat->report_id = field->report->id; 596 bat->charge_status = POWER_SUPPLY_STATUS_DISCHARGING; 597 bat->status = HID_BATTERY_UNKNOWN; 598 599 /* 600 * Stylus is normally not connected to the device and thus we 601 * can't query the device and get meaningful battery strength. 602 * We have to wait for the device to report it on its own. 603 */ 604 bat->avoid_query = report_type == HID_INPUT_REPORT && 605 field->physical == HID_DG_STYLUS; 606 607 if (quirks & HID_BATTERY_QUIRK_AVOID_QUERY) 608 bat->avoid_query = true; 609 610 bat->present = (quirks & HID_BATTERY_QUIRK_DYNAMIC) ? false : true; 611 612 psy_cfg.drv_data = bat; 613 bat->ps = devm_power_supply_register(&dev->dev, psy_desc, &psy_cfg); 614 if (IS_ERR(bat->ps)) { 615 error = PTR_ERR(bat->ps); 616 hid_warn(dev, "can't register power supply: %d\n", error); 617 goto err_free_name; 618 } 619 620 power_supply_powers(bat->ps, &dev->dev); 621 list_add_tail(&bat->list, &dev->batteries); 622 623 error = devm_add_action_or_reset(&dev->dev, 624 hidinput_cleanup_battery, bat); 625 if (error) 626 return error; 627 628 return 0; 629 630 err_free_name: 631 devm_kfree(&dev->dev, psy_desc->name); 632 err_free_desc: 633 devm_kfree(&dev->dev, psy_desc); 634 err_free_bat: 635 devm_kfree(&dev->dev, bat); 636 return error; 637 } 638 639 static bool hidinput_update_battery_charge_status(struct hid_battery *bat, 640 unsigned int usage, int value) 641 { 642 switch (usage) { 643 case HID_BAT_CHARGING: 644 bat->charge_status = value ? 645 POWER_SUPPLY_STATUS_CHARGING : 646 POWER_SUPPLY_STATUS_DISCHARGING; 647 return true; 648 } 649 650 return false; 651 } 652 653 static void hidinput_update_battery(struct hid_device *dev, int report_id, 654 unsigned int usage, int value) 655 { 656 struct hid_battery *bat; 657 int capacity; 658 659 bat = hidinput_find_battery(dev, report_id); 660 if (!bat) 661 return; 662 663 if (hidinput_update_battery_charge_status(bat, usage, value)) { 664 bat->present = true; 665 power_supply_changed(bat->ps); 666 return; 667 } 668 669 if ((usage & HID_USAGE_PAGE) == HID_UP_DIGITIZER && value == 0) 670 return; 671 672 if (value < bat->min || value > bat->max) 673 return; 674 675 capacity = hidinput_scale_battery_capacity(bat, value); 676 677 if (bat->status != HID_BATTERY_REPORTED || 678 capacity != bat->capacity || 679 ktime_after(ktime_get_coarse(), bat->ratelimit_time)) { 680 bat->present = true; 681 bat->capacity = capacity; 682 bat->status = HID_BATTERY_REPORTED; 683 bat->ratelimit_time = 684 ktime_add_ms(ktime_get_coarse(), 30 * 1000); 685 power_supply_changed(bat->ps); 686 } 687 } 688 #else /* !CONFIG_HID_BATTERY_STRENGTH */ 689 static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, 690 struct hid_field *field, bool is_percentage) 691 { 692 return 0; 693 } 694 695 static void hidinput_update_battery(struct hid_device *dev, int report_id, 696 unsigned int usage, int value) 697 { 698 } 699 #endif /* CONFIG_HID_BATTERY_STRENGTH */ 700 701 static bool hidinput_field_in_collection(struct hid_device *device, struct hid_field *field, 702 unsigned int type, unsigned int usage) 703 { 704 struct hid_collection *collection; 705 706 collection = &device->collection[field->usage->collection_index]; 707 708 return collection->type == type && collection->usage == usage; 709 } 710 711 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, 712 struct hid_usage *usage, unsigned int usage_index) 713 { 714 struct input_dev *input = hidinput->input; 715 struct hid_device *device = input_get_drvdata(input); 716 const struct usage_priority *usage_priority = NULL; 717 int max = 0, code; 718 unsigned int i = 0; 719 unsigned long *bit = NULL; 720 721 field->hidinput = hidinput; 722 723 if (field->flags & HID_MAIN_ITEM_CONSTANT) 724 goto ignore; 725 726 /* Ignore if report count is out of bounds. */ 727 if (field->report_count < 1) 728 goto ignore; 729 730 /* only LED and HAPTIC usages are supported in output fields */ 731 if (field->report_type == HID_OUTPUT_REPORT && 732 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED && 733 (usage->hid & HID_USAGE_PAGE) != HID_UP_HAPTIC) { 734 goto ignore; 735 } 736 737 /* assign a priority based on the static list declared here */ 738 for (i = 0; i < ARRAY_SIZE(hidinput_usages_priorities); i++) { 739 if (usage->hid == hidinput_usages_priorities[i].usage) { 740 usage_priority = &hidinput_usages_priorities[i]; 741 742 field->usages_priorities[usage_index] = 743 (ARRAY_SIZE(hidinput_usages_priorities) - i) << 8; 744 break; 745 } 746 } 747 748 /* 749 * For slotted devices, we need to also add the slot index 750 * in the priority. 751 */ 752 if (usage_priority && usage_priority->global) 753 field->usages_priorities[usage_index] |= 754 usage_priority->slot_overwrite; 755 else 756 field->usages_priorities[usage_index] |= 757 (0xff - field->slot_idx) << 16; 758 759 if (device->driver->input_mapping) { 760 int ret = device->driver->input_mapping(device, hidinput, field, 761 usage, &bit, &max); 762 if (ret > 0) 763 goto mapped; 764 if (ret < 0) 765 goto ignore; 766 } 767 768 switch (usage->hid & HID_USAGE_PAGE) { 769 case HID_UP_UNDEFINED: 770 goto ignore; 771 772 case HID_UP_KEYBOARD: 773 set_bit(EV_REP, input->evbit); 774 775 if ((usage->hid & HID_USAGE) < 256) { 776 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; 777 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); 778 } else 779 map_key(KEY_UNKNOWN); 780 781 break; 782 783 case HID_UP_BUTTON: 784 code = ((usage->hid - 1) & HID_USAGE); 785 786 switch (field->application) { 787 case HID_GD_MOUSE: 788 case HID_GD_POINTER: code += BTN_MOUSE; break; 789 case HID_GD_JOYSTICK: 790 if (code <= 0xf) 791 code += BTN_JOYSTICK; 792 else 793 code += BTN_TRIGGER_HAPPY - 0x10; 794 break; 795 case HID_GD_GAMEPAD: 796 if (code <= 0xf) 797 code += BTN_GAMEPAD; 798 else 799 code += BTN_TRIGGER_HAPPY - 0x10; 800 break; 801 case HID_CP_CONSUMER_CONTROL: 802 if (hidinput_field_in_collection(device, field, 803 HID_COLLECTION_NAMED_ARRAY, 804 HID_CP_PROGRAMMABLEBUTTONS)) { 805 if (code <= 0x1d) 806 code += KEY_MACRO1; 807 else 808 code += BTN_TRIGGER_HAPPY - 0x1e; 809 break; 810 } 811 fallthrough; 812 default: 813 switch (field->physical) { 814 case HID_GD_MOUSE: 815 case HID_GD_POINTER: code += BTN_MOUSE; break; 816 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break; 817 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break; 818 default: code += BTN_MISC; 819 } 820 } 821 822 map_key(code); 823 break; 824 825 case HID_UP_SIMULATION: 826 switch (usage->hid & 0xffff) { 827 case 0xba: map_abs(ABS_RUDDER); break; 828 case 0xbb: map_abs(ABS_THROTTLE); break; 829 case 0xc4: map_abs(ABS_GAS); break; 830 case 0xc5: map_abs(ABS_BRAKE); break; 831 case 0xc8: map_abs(ABS_WHEEL); break; 832 default: goto ignore; 833 } 834 break; 835 836 case HID_UP_GENDESK: 837 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ 838 switch (usage->hid & 0xf) { 839 case 0x1: map_key_clear(KEY_POWER); break; 840 case 0x2: map_key_clear(KEY_SLEEP); break; 841 case 0x3: map_key_clear(KEY_WAKEUP); break; 842 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break; 843 case 0x5: map_key_clear(KEY_MENU); break; 844 case 0x6: map_key_clear(KEY_PROG1); break; 845 case 0x7: map_key_clear(KEY_HELP); break; 846 case 0x8: map_key_clear(KEY_EXIT); break; 847 case 0x9: map_key_clear(KEY_SELECT); break; 848 case 0xa: map_key_clear(KEY_RIGHT); break; 849 case 0xb: map_key_clear(KEY_LEFT); break; 850 case 0xc: map_key_clear(KEY_UP); break; 851 case 0xd: map_key_clear(KEY_DOWN); break; 852 case 0xe: map_key_clear(KEY_POWER2); break; 853 case 0xf: map_key_clear(KEY_RESTART); break; 854 default: goto unknown; 855 } 856 break; 857 } 858 859 if ((usage->hid & 0xf0) == 0x90) { /* SystemControl & D-pad */ 860 switch (usage->hid) { 861 case HID_GD_UP: usage->hat_dir = 1; break; 862 case HID_GD_DOWN: usage->hat_dir = 5; break; 863 case HID_GD_RIGHT: usage->hat_dir = 3; break; 864 case HID_GD_LEFT: usage->hat_dir = 7; break; 865 case HID_GD_DO_NOT_DISTURB: 866 map_key_clear(KEY_DO_NOT_DISTURB); break; 867 default: goto unknown; 868 } 869 870 if (usage->hid <= HID_GD_LEFT) { 871 if (field->dpad) { 872 map_abs(field->dpad); 873 goto ignore; 874 } 875 map_abs(ABS_HAT0X); 876 } 877 break; 878 } 879 880 if ((usage->hid & 0xf0) == 0xa0) { /* SystemControl */ 881 switch (usage->hid & 0xf) { 882 case 0x9: map_key_clear(KEY_MICMUTE); break; 883 case 0xa: map_key_clear(KEY_ACCESSIBILITY); break; 884 default: goto ignore; 885 } 886 break; 887 } 888 889 if ((usage->hid & 0xf0) == 0xb0) { /* SC - Display */ 890 switch (usage->hid & 0xf) { 891 case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break; 892 default: goto ignore; 893 } 894 break; 895 } 896 897 /* 898 * Some lazy vendors declare 255 usages for System Control, 899 * leading to the creation of ABS_X|Y axis and too many others. 900 * It wouldn't be a problem if joydev doesn't consider the 901 * device as a joystick then. 902 */ 903 if (field->application == HID_GD_SYSTEM_CONTROL) 904 goto ignore; 905 906 switch (usage->hid) { 907 /* These usage IDs map directly to the usage codes. */ 908 case HID_GD_X: case HID_GD_Y: 909 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: 910 if (field->flags & HID_MAIN_ITEM_RELATIVE) 911 map_rel(usage->hid & 0xf); 912 else 913 map_abs_clear(usage->hid & 0xf); 914 break; 915 916 case HID_GD_Z: 917 /* HID_GD_Z is mapped to ABS_DISTANCE for stylus/pen */ 918 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 919 map_rel(usage->hid & 0xf); 920 } else { 921 if (field->application == HID_DG_PEN || 922 field->physical == HID_DG_PEN || 923 field->logical == HID_DG_STYLUS || 924 field->physical == HID_DG_STYLUS || 925 field->application == HID_DG_DIGITIZER) 926 map_abs_clear(ABS_DISTANCE); 927 else 928 map_abs_clear(usage->hid & 0xf); 929 } 930 break; 931 932 case HID_GD_WHEEL: 933 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 934 set_bit(REL_WHEEL, input->relbit); 935 map_rel(REL_WHEEL_HI_RES); 936 } else { 937 map_abs(usage->hid & 0xf); 938 } 939 break; 940 case HID_GD_SLIDER: case HID_GD_DIAL: 941 if (field->flags & HID_MAIN_ITEM_RELATIVE) 942 map_rel(usage->hid & 0xf); 943 else 944 map_abs(usage->hid & 0xf); 945 break; 946 947 case HID_GD_HATSWITCH: 948 usage->hat_min = field->logical_minimum; 949 usage->hat_max = field->logical_maximum; 950 map_abs(ABS_HAT0X); 951 break; 952 953 case HID_GD_START: map_key_clear(BTN_START); break; 954 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; 955 956 case HID_GD_RFKILL_BTN: 957 /* MS wireless radio ctl extension, also check CA */ 958 if (field->application == HID_GD_WIRELESS_RADIO_CTLS) { 959 map_key_clear(KEY_RFKILL); 960 /* We need to simulate the btn release */ 961 field->flags |= HID_MAIN_ITEM_RELATIVE; 962 break; 963 } 964 goto unknown; 965 966 default: goto unknown; 967 } 968 969 break; 970 971 case HID_UP_LED: 972 switch (usage->hid & 0xffff) { /* HID-Value: */ 973 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */ 974 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */ 975 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */ 976 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */ 977 case 0x05: map_led (LED_KANA); break; /* "Kana" */ 978 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */ 979 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */ 980 case 0x09: map_led (LED_MUTE); break; /* "Mute" */ 981 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */ 982 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */ 983 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */ 984 985 default: goto ignore; 986 } 987 break; 988 989 case HID_UP_DIGITIZER: 990 if ((field->application & 0xff) == 0x01) /* Digitizer */ 991 __set_bit(INPUT_PROP_POINTER, input->propbit); 992 else if ((field->application & 0xff) == 0x02) /* Pen */ 993 __set_bit(INPUT_PROP_DIRECT, input->propbit); 994 995 switch (usage->hid & 0xff) { 996 case 0x00: /* Undefined */ 997 goto ignore; 998 999 case 0x30: /* TipPressure */ 1000 if (!test_bit(BTN_TOUCH, input->keybit)) { 1001 device->quirks |= HID_QUIRK_NOTOUCH; 1002 set_bit(EV_KEY, input->evbit); 1003 set_bit(BTN_TOUCH, input->keybit); 1004 } 1005 map_abs_clear(ABS_PRESSURE); 1006 break; 1007 1008 case 0x32: /* InRange */ 1009 switch (field->physical) { 1010 case HID_DG_PUCK: 1011 map_key(BTN_TOOL_MOUSE); 1012 break; 1013 case HID_DG_FINGER: 1014 map_key(BTN_TOOL_FINGER); 1015 break; 1016 default: 1017 /* 1018 * If the physical is not given, 1019 * rely on the application. 1020 */ 1021 if (!field->physical) { 1022 switch (field->application) { 1023 case HID_DG_TOUCHSCREEN: 1024 case HID_DG_TOUCHPAD: 1025 map_key_clear(BTN_TOOL_FINGER); 1026 break; 1027 default: 1028 map_key_clear(BTN_TOOL_PEN); 1029 } 1030 } else { 1031 map_key(BTN_TOOL_PEN); 1032 } 1033 break; 1034 } 1035 break; 1036 1037 case 0x3b: /* Battery Strength */ 1038 hidinput_setup_battery(device, HID_INPUT_REPORT, field, false); 1039 usage->type = EV_PWR; 1040 return; 1041 1042 case 0x3c: /* Invert */ 1043 device->quirks &= ~HID_QUIRK_NOINVERT; 1044 map_key_clear(BTN_TOOL_RUBBER); 1045 break; 1046 1047 case 0x3d: /* X Tilt */ 1048 map_abs_clear(ABS_TILT_X); 1049 break; 1050 1051 case 0x3e: /* Y Tilt */ 1052 map_abs_clear(ABS_TILT_Y); 1053 break; 1054 1055 case 0x33: /* Touch */ 1056 case 0x42: /* TipSwitch */ 1057 case 0x43: /* TipSwitch2 */ 1058 device->quirks &= ~HID_QUIRK_NOTOUCH; 1059 map_key_clear(BTN_TOUCH); 1060 break; 1061 1062 case 0x44: /* BarrelSwitch */ 1063 map_key_clear(BTN_STYLUS); 1064 break; 1065 1066 case 0x45: /* ERASER */ 1067 /* 1068 * This event is reported when eraser tip touches the surface. 1069 * Actual eraser (BTN_TOOL_RUBBER) is set and released either 1070 * by Invert if tool reports proximity or by Eraser directly. 1071 */ 1072 if (!test_bit(BTN_TOOL_RUBBER, input->keybit)) { 1073 device->quirks |= HID_QUIRK_NOINVERT; 1074 set_bit(BTN_TOOL_RUBBER, input->keybit); 1075 } 1076 map_key_clear(BTN_TOUCH); 1077 break; 1078 1079 case 0x46: /* TabletPick */ 1080 case 0x5a: /* SecondaryBarrelSwitch */ 1081 map_key_clear(BTN_STYLUS2); 1082 break; 1083 1084 case 0x5b: /* TransducerSerialNumber */ 1085 case 0x6e: /* TransducerSerialNumber2 */ 1086 map_msc(MSC_SERIAL); 1087 break; 1088 1089 default: goto unknown; 1090 } 1091 break; 1092 1093 case HID_UP_TELEPHONY: 1094 switch (usage->hid & HID_USAGE) { 1095 case 0x2f: map_key_clear(KEY_MICMUTE); break; 1096 case 0xb0: map_key_clear(KEY_NUMERIC_0); break; 1097 case 0xb1: map_key_clear(KEY_NUMERIC_1); break; 1098 case 0xb2: map_key_clear(KEY_NUMERIC_2); break; 1099 case 0xb3: map_key_clear(KEY_NUMERIC_3); break; 1100 case 0xb4: map_key_clear(KEY_NUMERIC_4); break; 1101 case 0xb5: map_key_clear(KEY_NUMERIC_5); break; 1102 case 0xb6: map_key_clear(KEY_NUMERIC_6); break; 1103 case 0xb7: map_key_clear(KEY_NUMERIC_7); break; 1104 case 0xb8: map_key_clear(KEY_NUMERIC_8); break; 1105 case 0xb9: map_key_clear(KEY_NUMERIC_9); break; 1106 case 0xba: map_key_clear(KEY_NUMERIC_STAR); break; 1107 case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break; 1108 case 0xbc: map_key_clear(KEY_NUMERIC_A); break; 1109 case 0xbd: map_key_clear(KEY_NUMERIC_B); break; 1110 case 0xbe: map_key_clear(KEY_NUMERIC_C); break; 1111 case 0xbf: map_key_clear(KEY_NUMERIC_D); break; 1112 default: goto ignore; 1113 } 1114 break; 1115 1116 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */ 1117 switch (usage->hid & HID_USAGE) { 1118 case 0x000: goto ignore; 1119 case 0x030: map_key_clear(KEY_POWER); break; 1120 case 0x031: map_key_clear(KEY_RESTART); break; 1121 case 0x032: map_key_clear(KEY_SLEEP); break; 1122 case 0x034: map_key_clear(KEY_SLEEP); break; 1123 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break; 1124 case 0x036: map_key_clear(BTN_MISC); break; 1125 1126 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */ 1127 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */ 1128 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */ 1129 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */ 1130 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */ 1131 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */ 1132 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */ 1133 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */ 1134 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */ 1135 1136 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */ 1137 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */ 1138 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */ 1139 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */ 1140 case 0x069: map_key_clear(KEY_RED); break; 1141 case 0x06a: map_key_clear(KEY_GREEN); break; 1142 case 0x06b: map_key_clear(KEY_BLUE); break; 1143 case 0x06c: map_key_clear(KEY_YELLOW); break; 1144 case 0x06d: map_key_clear(KEY_ASPECT_RATIO); break; 1145 1146 case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break; 1147 case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break; 1148 case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break; 1149 case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break; 1150 case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break; 1151 case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break; 1152 1153 case 0x076: map_key_clear(KEY_CAMERA_ACCESS_ENABLE); break; 1154 case 0x077: map_key_clear(KEY_CAMERA_ACCESS_DISABLE); break; 1155 case 0x078: map_key_clear(KEY_CAMERA_ACCESS_TOGGLE); break; 1156 1157 case 0x079: map_key_clear(KEY_KBDILLUMUP); break; 1158 case 0x07a: map_key_clear(KEY_KBDILLUMDOWN); break; 1159 case 0x07c: map_key_clear(KEY_KBDILLUMTOGGLE); break; 1160 1161 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break; 1162 case 0x083: map_key_clear(KEY_LAST); break; 1163 case 0x084: map_key_clear(KEY_ENTER); break; 1164 case 0x088: map_key_clear(KEY_PC); break; 1165 case 0x089: map_key_clear(KEY_TV); break; 1166 case 0x08a: map_key_clear(KEY_WWW); break; 1167 case 0x08b: map_key_clear(KEY_DVD); break; 1168 case 0x08c: map_key_clear(KEY_PHONE); break; 1169 case 0x08d: map_key_clear(KEY_PROGRAM); break; 1170 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break; 1171 case 0x08f: map_key_clear(KEY_GAMES); break; 1172 case 0x090: map_key_clear(KEY_MEMO); break; 1173 case 0x091: map_key_clear(KEY_CD); break; 1174 case 0x092: map_key_clear(KEY_VCR); break; 1175 case 0x093: map_key_clear(KEY_TUNER); break; 1176 case 0x094: map_key_clear(KEY_EXIT); break; 1177 case 0x095: map_key_clear(KEY_HELP); break; 1178 case 0x096: map_key_clear(KEY_TAPE); break; 1179 case 0x097: map_key_clear(KEY_TV2); break; 1180 case 0x098: map_key_clear(KEY_SAT); break; 1181 case 0x09a: map_key_clear(KEY_PVR); break; 1182 1183 case 0x09c: map_key_clear(KEY_CHANNELUP); break; 1184 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break; 1185 case 0x0a0: map_key_clear(KEY_VCR2); break; 1186 1187 case 0x0b0: map_key_clear(KEY_PLAY); break; 1188 case 0x0b1: map_key_clear(KEY_PAUSE); break; 1189 case 0x0b2: map_key_clear(KEY_RECORD); break; 1190 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; 1191 case 0x0b4: map_key_clear(KEY_REWIND); break; 1192 case 0x0b5: map_key_clear(KEY_NEXTSONG); break; 1193 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; 1194 case 0x0b7: map_key_clear(KEY_STOPCD); break; 1195 case 0x0b8: map_key_clear(KEY_EJECTCD); break; 1196 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break; 1197 case 0x0b9: map_key_clear(KEY_SHUFFLE); break; 1198 case 0x0bf: map_key_clear(KEY_SLOW); break; 1199 1200 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; 1201 case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break; 1202 1203 case 0x0d8: map_key_clear(KEY_DICTATE); break; 1204 case 0x0d9: map_key_clear(KEY_EMOJI_PICKER); break; 1205 1206 case 0x0e0: map_abs_clear(ABS_VOLUME); break; 1207 case 0x0e2: map_key_clear(KEY_MUTE); break; 1208 case 0x0e5: map_key_clear(KEY_BASSBOOST); break; 1209 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; 1210 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; 1211 case 0x0f5: map_key_clear(KEY_SLOW); break; 1212 1213 case 0x181: map_key_clear(KEY_BUTTONCONFIG); break; 1214 case 0x182: map_key_clear(KEY_BOOKMARKS); break; 1215 case 0x183: map_key_clear(KEY_CONFIG); break; 1216 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break; 1217 case 0x185: map_key_clear(KEY_EDITOR); break; 1218 case 0x186: map_key_clear(KEY_SPREADSHEET); break; 1219 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break; 1220 case 0x188: map_key_clear(KEY_PRESENTATION); break; 1221 case 0x189: map_key_clear(KEY_DATABASE); break; 1222 case 0x18a: map_key_clear(KEY_MAIL); break; 1223 case 0x18b: map_key_clear(KEY_NEWS); break; 1224 case 0x18c: map_key_clear(KEY_VOICEMAIL); break; 1225 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break; 1226 case 0x18e: map_key_clear(KEY_CALENDAR); break; 1227 case 0x18f: map_key_clear(KEY_TASKMANAGER); break; 1228 case 0x190: map_key_clear(KEY_JOURNAL); break; 1229 case 0x191: map_key_clear(KEY_FINANCE); break; 1230 case 0x192: map_key_clear(KEY_CALC); break; 1231 case 0x193: map_key_clear(KEY_PLAYER); break; 1232 case 0x194: map_key_clear(KEY_FILE); break; 1233 case 0x196: map_key_clear(KEY_WWW); break; 1234 case 0x199: map_key_clear(KEY_CHAT); break; 1235 case 0x19c: map_key_clear(KEY_LOGOFF); break; 1236 case 0x19e: map_key_clear(KEY_COFFEE); break; 1237 case 0x19f: map_key_clear(KEY_CONTROLPANEL); break; 1238 case 0x1a2: map_key_clear(KEY_APPSELECT); break; 1239 case 0x1a3: map_key_clear(KEY_NEXT); break; 1240 case 0x1a4: map_key_clear(KEY_PREVIOUS); break; 1241 case 0x1a6: map_key_clear(KEY_HELP); break; 1242 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break; 1243 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break; 1244 case 0x1ae: map_key_clear(KEY_KEYBOARD); break; 1245 case 0x1b1: map_key_clear(KEY_SCREENSAVER); break; 1246 case 0x1b4: map_key_clear(KEY_FILE); break; 1247 case 0x1b6: map_key_clear(KEY_IMAGES); break; 1248 case 0x1b7: map_key_clear(KEY_AUDIO); break; 1249 case 0x1b8: map_key_clear(KEY_VIDEO); break; 1250 case 0x1bc: map_key_clear(KEY_MESSENGER); break; 1251 case 0x1bd: map_key_clear(KEY_INFO); break; 1252 case 0x1cb: map_key_clear(KEY_ASSISTANT); break; 1253 case 0x1cc: map_key_clear(KEY_ACTION_ON_SELECTION); break; 1254 case 0x1cd: map_key_clear(KEY_CONTEXTUAL_INSERT); break; 1255 case 0x1ce: map_key_clear(KEY_CONTEXTUAL_QUERY); break; 1256 case 0x201: map_key_clear(KEY_NEW); break; 1257 case 0x202: map_key_clear(KEY_OPEN); break; 1258 case 0x203: map_key_clear(KEY_CLOSE); break; 1259 case 0x204: map_key_clear(KEY_EXIT); break; 1260 case 0x207: map_key_clear(KEY_SAVE); break; 1261 case 0x208: map_key_clear(KEY_PRINT); break; 1262 case 0x209: map_key_clear(KEY_PROPS); break; 1263 case 0x21a: map_key_clear(KEY_UNDO); break; 1264 case 0x21b: map_key_clear(KEY_COPY); break; 1265 case 0x21c: map_key_clear(KEY_CUT); break; 1266 case 0x21d: map_key_clear(KEY_PASTE); break; 1267 case 0x21f: map_key_clear(KEY_FIND); break; 1268 case 0x221: map_key_clear(KEY_SEARCH); break; 1269 case 0x222: map_key_clear(KEY_GOTO); break; 1270 case 0x223: map_key_clear(KEY_HOMEPAGE); break; 1271 case 0x224: map_key_clear(KEY_BACK); break; 1272 case 0x225: map_key_clear(KEY_FORWARD); break; 1273 case 0x226: map_key_clear(KEY_STOP); break; 1274 case 0x227: map_key_clear(KEY_REFRESH); break; 1275 case 0x22a: map_key_clear(KEY_BOOKMARKS); break; 1276 case 0x22d: map_key_clear(KEY_ZOOMIN); break; 1277 case 0x22e: map_key_clear(KEY_ZOOMOUT); break; 1278 case 0x22f: map_key_clear(KEY_ZOOMRESET); break; 1279 case 0x232: map_key_clear(KEY_FULL_SCREEN); break; 1280 case 0x233: map_key_clear(KEY_SCROLLUP); break; 1281 case 0x234: map_key_clear(KEY_SCROLLDOWN); break; 1282 case 0x238: /* AC Pan */ 1283 set_bit(REL_HWHEEL, input->relbit); 1284 map_rel(REL_HWHEEL_HI_RES); 1285 break; 1286 case 0x23d: map_key_clear(KEY_EDIT); break; 1287 case 0x25f: map_key_clear(KEY_CANCEL); break; 1288 case 0x269: map_key_clear(KEY_INSERT); break; 1289 case 0x26a: map_key_clear(KEY_DELETE); break; 1290 case 0x279: map_key_clear(KEY_REDO); break; 1291 1292 case 0x289: map_key_clear(KEY_REPLY); break; 1293 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break; 1294 case 0x28c: map_key_clear(KEY_SEND); break; 1295 1296 case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT); break; 1297 1298 case 0x2a2: map_key_clear(KEY_ALL_APPLICATIONS); break; 1299 1300 case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break; 1301 case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break; 1302 case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break; 1303 case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break; 1304 case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break; 1305 case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break; 1306 1307 case 0x29f: map_key_clear(KEY_SCALE); break; 1308 1309 default: map_key_clear(KEY_UNKNOWN); 1310 } 1311 break; 1312 1313 case HID_UP_GENDEVCTRLS: 1314 switch (usage->hid) { 1315 case HID_DC_BATTERYSTRENGTH: 1316 hidinput_setup_battery(device, HID_INPUT_REPORT, field, false); 1317 usage->type = EV_PWR; 1318 return; 1319 } 1320 goto unknown; 1321 1322 case HID_UP_BATTERY: 1323 switch (usage->hid) { 1324 case HID_BAT_ABSOLUTESTATEOFCHARGE: 1325 hidinput_setup_battery(device, HID_INPUT_REPORT, field, true); 1326 usage->type = EV_PWR; 1327 return; 1328 case HID_BAT_CHARGING: 1329 usage->type = EV_PWR; 1330 return; 1331 } 1332 goto unknown; 1333 case HID_UP_CAMERA: 1334 switch (usage->hid & HID_USAGE) { 1335 case 0x020: 1336 map_key_clear(KEY_CAMERA_FOCUS); break; 1337 case 0x021: 1338 map_key_clear(KEY_CAMERA); break; 1339 default: 1340 goto ignore; 1341 } 1342 break; 1343 1344 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ 1345 set_bit(EV_REP, input->evbit); 1346 switch (usage->hid & HID_USAGE) { 1347 case 0x021: map_key_clear(KEY_PRINT); break; 1348 case 0x070: map_key_clear(KEY_HP); break; 1349 case 0x071: map_key_clear(KEY_CAMERA); break; 1350 case 0x072: map_key_clear(KEY_SOUND); break; 1351 case 0x073: map_key_clear(KEY_QUESTION); break; 1352 case 0x080: map_key_clear(KEY_EMAIL); break; 1353 case 0x081: map_key_clear(KEY_CHAT); break; 1354 case 0x082: map_key_clear(KEY_SEARCH); break; 1355 case 0x083: map_key_clear(KEY_CONNECT); break; 1356 case 0x084: map_key_clear(KEY_FINANCE); break; 1357 case 0x085: map_key_clear(KEY_SPORT); break; 1358 case 0x086: map_key_clear(KEY_SHOP); break; 1359 default: goto ignore; 1360 } 1361 break; 1362 1363 case HID_UP_HPVENDOR2: 1364 set_bit(EV_REP, input->evbit); 1365 switch (usage->hid & HID_USAGE) { 1366 case 0x001: map_key_clear(KEY_MICMUTE); break; 1367 case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break; 1368 case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break; 1369 default: goto ignore; 1370 } 1371 break; 1372 1373 case HID_UP_MSVENDOR: 1374 goto ignore; 1375 1376 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */ 1377 set_bit(EV_REP, input->evbit); 1378 goto ignore; 1379 1380 case HID_UP_LOGIVENDOR: 1381 /* intentional fallback */ 1382 case HID_UP_LOGIVENDOR2: 1383 /* intentional fallback */ 1384 case HID_UP_LOGIVENDOR3: 1385 goto ignore; 1386 1387 case HID_UP_PID: 1388 switch (usage->hid & HID_USAGE) { 1389 case 0xa4: map_key_clear(BTN_DEAD); break; 1390 default: goto ignore; 1391 } 1392 break; 1393 1394 default: 1395 unknown: 1396 if (field->report_size == 1) { 1397 if (field->report->type == HID_OUTPUT_REPORT) { 1398 map_led(LED_MISC); 1399 break; 1400 } 1401 map_key(BTN_MISC); 1402 break; 1403 } 1404 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 1405 map_rel(REL_MISC); 1406 break; 1407 } 1408 map_abs(ABS_MISC); 1409 break; 1410 } 1411 1412 mapped: 1413 /* Mapping failed, bail out */ 1414 if (!bit) 1415 return; 1416 1417 if (device->driver->input_mapped && 1418 device->driver->input_mapped(device, hidinput, field, usage, 1419 &bit, &max) < 0) { 1420 /* 1421 * The driver indicated that no further generic handling 1422 * of the usage is desired. 1423 */ 1424 return; 1425 } 1426 1427 set_bit(usage->type, input->evbit); 1428 1429 /* 1430 * This part is *really* controversial: 1431 * - HID aims at being generic so we should do our best to export 1432 * all incoming events 1433 * - HID describes what events are, so there is no reason for ABS_X 1434 * to be mapped to ABS_Y 1435 * - HID is using *_MISC+N as a default value, but nothing prevents 1436 * *_MISC+N to overwrite a legitimate even, which confuses userspace 1437 * (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different 1438 * processing) 1439 * 1440 * If devices still want to use this (at their own risk), they will 1441 * have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but 1442 * the default should be a reliable mapping. 1443 */ 1444 while (usage->code <= max && test_and_set_bit(usage->code, bit)) { 1445 if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) { 1446 usage->code = find_next_zero_bit(bit, 1447 max + 1, 1448 usage->code); 1449 } else { 1450 device->status |= HID_STAT_DUP_DETECTED; 1451 goto ignore; 1452 } 1453 } 1454 1455 if (usage->code > max) 1456 goto ignore; 1457 1458 if (usage->type == EV_ABS) { 1459 1460 int a = field->logical_minimum; 1461 int b = field->logical_maximum; 1462 1463 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { 1464 a = field->logical_minimum = 0; 1465 b = field->logical_maximum = 255; 1466 } 1467 1468 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) 1469 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); 1470 else input_set_abs_params(input, usage->code, a, b, 0, 0); 1471 1472 input_abs_set_res(input, usage->code, 1473 hidinput_calc_abs_res(field, usage->code)); 1474 1475 /* use a larger default input buffer for MT devices */ 1476 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0) 1477 input_set_events_per_packet(input, 60); 1478 } 1479 1480 if (usage->type == EV_ABS && 1481 (usage->hat_min < usage->hat_max || usage->hat_dir)) { 1482 int i; 1483 for (i = usage->code; i < usage->code + 2 && i <= max; i++) { 1484 input_set_abs_params(input, i, -1, 1, 0, 0); 1485 set_bit(i, input->absbit); 1486 } 1487 if (usage->hat_dir && !field->dpad) 1488 field->dpad = usage->code; 1489 } 1490 1491 /* for those devices which produce Consumer volume usage as relative, 1492 * we emulate pressing volumeup/volumedown appropriate number of times 1493 * in hidinput_hid_event() 1494 */ 1495 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 1496 (usage->code == ABS_VOLUME)) { 1497 set_bit(KEY_VOLUMEUP, input->keybit); 1498 set_bit(KEY_VOLUMEDOWN, input->keybit); 1499 } 1500 1501 if (usage->type == EV_KEY) { 1502 set_bit(EV_MSC, input->evbit); 1503 set_bit(MSC_SCAN, input->mscbit); 1504 } 1505 1506 return; 1507 1508 ignore: 1509 usage->type = 0; 1510 usage->code = 0; 1511 } 1512 1513 static void hidinput_handle_scroll(struct hid_usage *usage, 1514 struct input_dev *input, 1515 __s32 value) 1516 { 1517 int code; 1518 int hi_res, lo_res; 1519 1520 if (value == 0) 1521 return; 1522 1523 if (usage->code == REL_WHEEL_HI_RES) 1524 code = REL_WHEEL; 1525 else 1526 code = REL_HWHEEL; 1527 1528 /* 1529 * Windows reports one wheel click as value 120. Where a high-res 1530 * scroll wheel is present, a fraction of 120 is reported instead. 1531 * Our REL_WHEEL_HI_RES axis does the same because all HW must 1532 * adhere to the 120 expectation. 1533 */ 1534 hi_res = value * 120/usage->resolution_multiplier; 1535 1536 usage->wheel_accumulated += hi_res; 1537 lo_res = usage->wheel_accumulated/120; 1538 if (lo_res) 1539 usage->wheel_accumulated -= lo_res * 120; 1540 1541 input_event(input, EV_REL, code, lo_res); 1542 input_event(input, EV_REL, usage->code, hi_res); 1543 } 1544 1545 static void hid_report_release_tool(struct hid_report *report, struct input_dev *input, 1546 unsigned int tool) 1547 { 1548 /* if the given tool is not currently reported, ignore */ 1549 if (!test_bit(tool, input->key)) 1550 return; 1551 1552 /* 1553 * if the given tool was previously set, release it, 1554 * release any TOUCH and send an EV_SYN 1555 */ 1556 input_event(input, EV_KEY, BTN_TOUCH, 0); 1557 input_event(input, EV_KEY, tool, 0); 1558 input_event(input, EV_SYN, SYN_REPORT, 0); 1559 1560 report->tool = 0; 1561 } 1562 1563 static void hid_report_set_tool(struct hid_report *report, struct input_dev *input, 1564 unsigned int new_tool) 1565 { 1566 if (report->tool != new_tool) 1567 hid_report_release_tool(report, input, report->tool); 1568 1569 input_event(input, EV_KEY, new_tool, 1); 1570 report->tool = new_tool; 1571 } 1572 1573 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) 1574 { 1575 struct input_dev *input; 1576 struct hid_report *report = field->report; 1577 unsigned *quirks = &hid->quirks; 1578 1579 if (!usage->type) 1580 return; 1581 1582 if (usage->type == EV_PWR) { 1583 hidinput_update_battery(hid, report->id, usage->hid, value); 1584 return; 1585 } 1586 1587 if (!field->hidinput) 1588 return; 1589 1590 input = field->hidinput->input; 1591 1592 if (usage->hat_min < usage->hat_max || usage->hat_dir) { 1593 int hat_dir = usage->hat_dir; 1594 if (!hat_dir) 1595 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; 1596 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; 1597 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); 1598 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); 1599 return; 1600 } 1601 1602 /* 1603 * Ignore out-of-range values as per HID specification, 1604 * section 5.10 and 6.2.25, when NULL state bit is present. 1605 * When it's not, clamp the value to match Microsoft's input 1606 * driver as mentioned in "Required HID usages for digitizers": 1607 * https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp 1608 * 1609 * The logical_minimum < logical_maximum check is done so that we 1610 * don't unintentionally discard values sent by devices which 1611 * don't specify logical min and max. 1612 */ 1613 if ((field->flags & HID_MAIN_ITEM_VARIABLE) && 1614 field->logical_minimum < field->logical_maximum) { 1615 if (field->flags & HID_MAIN_ITEM_NULL_STATE && 1616 (value < field->logical_minimum || 1617 value > field->logical_maximum)) { 1618 dbg_hid("Ignoring out-of-range value %x\n", value); 1619 return; 1620 } 1621 value = clamp(value, 1622 field->logical_minimum, 1623 field->logical_maximum); 1624 } 1625 1626 switch (usage->hid) { 1627 case HID_DG_ERASER: 1628 report->tool_active |= !!value; 1629 1630 /* 1631 * if eraser is set, we must enforce BTN_TOOL_RUBBER 1632 * to accommodate for devices not following the spec. 1633 */ 1634 if (value) 1635 hid_report_set_tool(report, input, BTN_TOOL_RUBBER); 1636 else if (report->tool != BTN_TOOL_RUBBER) 1637 /* value is off, tool is not rubber, ignore */ 1638 return; 1639 else if (*quirks & HID_QUIRK_NOINVERT && 1640 !test_bit(BTN_TOUCH, input->key)) { 1641 /* 1642 * There is no invert to release the tool, let hid_input 1643 * send BTN_TOUCH with scancode and release the tool after. 1644 */ 1645 hid_report_release_tool(report, input, BTN_TOOL_RUBBER); 1646 return; 1647 } 1648 1649 /* let hid-input set BTN_TOUCH */ 1650 break; 1651 1652 case HID_DG_INVERT: 1653 report->tool_active |= !!value; 1654 1655 /* 1656 * If invert is set, we store BTN_TOOL_RUBBER. 1657 */ 1658 if (value) 1659 hid_report_set_tool(report, input, BTN_TOOL_RUBBER); 1660 else if (!report->tool_active) 1661 /* tool_active not set means Invert and Eraser are not set */ 1662 hid_report_release_tool(report, input, BTN_TOOL_RUBBER); 1663 1664 /* no further processing */ 1665 return; 1666 1667 case HID_DG_INRANGE: 1668 report->tool_active |= !!value; 1669 1670 if (report->tool_active) { 1671 /* 1672 * if tool is not set but is marked as active, 1673 * assume ours 1674 */ 1675 if (!report->tool) 1676 report->tool = usage->code; 1677 1678 /* drivers may have changed the value behind our back, resend it */ 1679 hid_report_set_tool(report, input, report->tool); 1680 } else { 1681 hid_report_release_tool(report, input, usage->code); 1682 } 1683 1684 /* reset tool_active for the next event */ 1685 report->tool_active = false; 1686 1687 /* no further processing */ 1688 return; 1689 1690 case HID_DG_TIPSWITCH: 1691 report->tool_active |= !!value; 1692 1693 /* if tool is set to RUBBER we should ignore the current value */ 1694 if (report->tool == BTN_TOOL_RUBBER) 1695 return; 1696 1697 break; 1698 1699 case HID_DG_TIPPRESSURE: 1700 if (*quirks & HID_QUIRK_NOTOUCH) { 1701 int a = field->logical_minimum; 1702 int b = field->logical_maximum; 1703 1704 if (value > a + ((b - a) >> 3)) { 1705 input_event(input, EV_KEY, BTN_TOUCH, 1); 1706 report->tool_active = true; 1707 } 1708 } 1709 break; 1710 1711 case HID_UP_PID | 0x83UL: /* Simultaneous Effects Max */ 1712 dbg_hid("Maximum Effects - %d\n",value); 1713 return; 1714 1715 case HID_UP_PID | 0x7fUL: 1716 dbg_hid("PID Pool Report\n"); 1717 return; 1718 } 1719 1720 switch (usage->type) { 1721 case EV_KEY: 1722 if (usage->code == 0) /* Key 0 is "unassigned", not KEY_UNKNOWN */ 1723 return; 1724 break; 1725 1726 case EV_REL: 1727 if (usage->code == REL_WHEEL_HI_RES || 1728 usage->code == REL_HWHEEL_HI_RES) { 1729 hidinput_handle_scroll(usage, input, value); 1730 return; 1731 } 1732 break; 1733 1734 case EV_ABS: 1735 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && 1736 usage->code == ABS_VOLUME) { 1737 int count = abs(value); 1738 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; 1739 int i; 1740 1741 for (i = 0; i < count; i++) { 1742 input_event(input, EV_KEY, direction, 1); 1743 input_sync(input); 1744 input_event(input, EV_KEY, direction, 0); 1745 input_sync(input); 1746 } 1747 return; 1748 1749 } else if (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) || 1750 ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y)) 1751 value = field->logical_maximum - value; 1752 break; 1753 } 1754 1755 /* 1756 * Ignore reports for absolute data if the data didn't change. This is 1757 * not only an optimization but also fixes 'dead' key reports. Some 1758 * RollOver implementations for localized keys (like BACKSLASH/PIPE; HID 1759 * 0x31 and 0x32) report multiple keys, even though a localized keyboard 1760 * can only have one of them physically available. The 'dead' keys 1761 * report constant 0. As all map to the same keycode, they'd confuse 1762 * the input layer. If we filter the 'dead' keys on the HID level, we 1763 * skip the keycode translation and only forward real events. 1764 */ 1765 if (!(field->flags & (HID_MAIN_ITEM_RELATIVE | 1766 HID_MAIN_ITEM_BUFFERED_BYTE)) && 1767 (field->flags & HID_MAIN_ITEM_VARIABLE) && 1768 usage->usage_index < field->maxusage && 1769 value == field->value[usage->usage_index]) 1770 return; 1771 1772 /* report the usage code as scancode if the key status has changed */ 1773 if (usage->type == EV_KEY && 1774 (!test_bit(usage->code, input->key)) == value) 1775 input_event(input, EV_MSC, MSC_SCAN, usage->hid); 1776 1777 input_event(input, usage->type, usage->code, value); 1778 1779 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && 1780 usage->type == EV_KEY && value) { 1781 input_sync(input); 1782 input_event(input, usage->type, usage->code, 0); 1783 } 1784 } 1785 1786 void hidinput_report_event(struct hid_device *hid, struct hid_report *report) 1787 { 1788 struct hid_input *hidinput; 1789 1790 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC) 1791 return; 1792 1793 list_for_each_entry(hidinput, &hid->inputs, list) 1794 input_sync(hidinput->input); 1795 } 1796 EXPORT_SYMBOL_GPL(hidinput_report_event); 1797 1798 static int hidinput_find_field(struct hid_device *hid, unsigned int type, 1799 unsigned int code, struct hid_field **field) 1800 { 1801 struct hid_report *report; 1802 int i, j; 1803 1804 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { 1805 for (i = 0; i < report->maxfield; i++) { 1806 *field = report->field[i]; 1807 for (j = 0; j < (*field)->maxusage; j++) 1808 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) 1809 return j; 1810 } 1811 } 1812 return -1; 1813 } 1814 1815 struct hid_field *hidinput_get_led_field(struct hid_device *hid) 1816 { 1817 struct hid_report *report; 1818 struct hid_field *field; 1819 int i, j; 1820 1821 list_for_each_entry(report, 1822 &hid->report_enum[HID_OUTPUT_REPORT].report_list, 1823 list) { 1824 for (i = 0; i < report->maxfield; i++) { 1825 field = report->field[i]; 1826 for (j = 0; j < field->maxusage; j++) 1827 if (field->usage[j].type == EV_LED) 1828 return field; 1829 } 1830 } 1831 return NULL; 1832 } 1833 EXPORT_SYMBOL_GPL(hidinput_get_led_field); 1834 1835 unsigned int hidinput_count_leds(struct hid_device *hid) 1836 { 1837 struct hid_report *report; 1838 struct hid_field *field; 1839 int i, j; 1840 unsigned int count = 0; 1841 1842 list_for_each_entry(report, 1843 &hid->report_enum[HID_OUTPUT_REPORT].report_list, 1844 list) { 1845 for (i = 0; i < report->maxfield; i++) { 1846 field = report->field[i]; 1847 for (j = 0; j < field->maxusage; j++) 1848 if (field->usage[j].type == EV_LED && 1849 field->value[j]) 1850 count += 1; 1851 } 1852 } 1853 return count; 1854 } 1855 EXPORT_SYMBOL_GPL(hidinput_count_leds); 1856 1857 static void hidinput_led_worker(struct work_struct *work) 1858 { 1859 struct hid_device *hid = container_of(work, struct hid_device, 1860 led_work); 1861 struct hid_field *field; 1862 struct hid_report *report; 1863 int ret; 1864 u32 len; 1865 1866 field = hidinput_get_led_field(hid); 1867 if (!field) 1868 return; 1869 1870 /* 1871 * field->report is accessed unlocked regarding HID core. So there might 1872 * be another incoming SET-LED request from user-space, which changes 1873 * the LED state while we assemble our outgoing buffer. However, this 1874 * doesn't matter as hid_output_report() correctly converts it into a 1875 * boolean value no matter what information is currently set on the LED 1876 * field (even garbage). So the remote device will always get a valid 1877 * request. 1878 * And in case we send a wrong value, a next led worker is spawned 1879 * for every SET-LED request so the following worker will send the 1880 * correct value, guaranteed! 1881 */ 1882 1883 report = field->report; 1884 1885 /* use custom SET_REPORT request if possible (asynchronous) */ 1886 if (hid->ll_driver->request) 1887 return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT); 1888 1889 /* fall back to generic raw-output-report */ 1890 len = hid_report_len(report); 1891 u8 *buf __free(kfree) = hid_alloc_report_buf(report, GFP_KERNEL); 1892 if (!buf) 1893 return; 1894 1895 hid_output_report(report, buf); 1896 /* synchronous output report */ 1897 ret = hid_hw_output_report(hid, buf, len); 1898 if (ret == -ENOSYS) 1899 hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT, 1900 HID_REQ_SET_REPORT); 1901 } 1902 1903 static int hidinput_input_event(struct input_dev *dev, unsigned int type, 1904 unsigned int code, int value) 1905 { 1906 struct hid_device *hid = input_get_drvdata(dev); 1907 struct hid_field *field; 1908 int offset; 1909 1910 if (type == EV_FF) 1911 return input_ff_event(dev, type, code, value); 1912 1913 if (type != EV_LED) 1914 return -1; 1915 1916 if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) { 1917 hid_warn(dev, "event field not found\n"); 1918 return -1; 1919 } 1920 1921 hid_set_field(field, offset, value); 1922 1923 schedule_work(&hid->led_work); 1924 return 0; 1925 } 1926 1927 static int hidinput_open(struct input_dev *dev) 1928 { 1929 struct hid_device *hid = input_get_drvdata(dev); 1930 1931 return hid_hw_open(hid); 1932 } 1933 1934 static void hidinput_close(struct input_dev *dev) 1935 { 1936 struct hid_device *hid = input_get_drvdata(dev); 1937 1938 hid_hw_close(hid); 1939 } 1940 1941 static bool __hidinput_change_resolution_multipliers(struct hid_device *hid, 1942 struct hid_report *report, bool use_logical_max) 1943 { 1944 struct hid_usage *usage; 1945 bool update_needed = false; 1946 bool get_report_completed = false; 1947 int i, j; 1948 1949 if (report->maxfield == 0) 1950 return false; 1951 1952 for (i = 0; i < report->maxfield; i++) { 1953 __s32 value = use_logical_max ? 1954 report->field[i]->logical_maximum : 1955 report->field[i]->logical_minimum; 1956 1957 /* There is no good reason for a Resolution 1958 * Multiplier to have a count other than 1. 1959 * Ignore that case. 1960 */ 1961 if (report->field[i]->report_count != 1) 1962 continue; 1963 1964 for (j = 0; j < report->field[i]->maxusage; j++) { 1965 usage = &report->field[i]->usage[j]; 1966 1967 if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER) 1968 continue; 1969 1970 /* 1971 * If we have more than one feature within this 1972 * report we need to fill in the bits from the 1973 * others before we can overwrite the ones for the 1974 * Resolution Multiplier. 1975 * 1976 * But if we're not allowed to read from the device, 1977 * we just bail. Such a device should not exist 1978 * anyway. 1979 */ 1980 if (!get_report_completed && report->maxfield > 1) { 1981 if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS) 1982 return update_needed; 1983 1984 hid_hw_request(hid, report, HID_REQ_GET_REPORT); 1985 hid_hw_wait(hid); 1986 get_report_completed = true; 1987 } 1988 1989 report->field[i]->value[j] = value; 1990 update_needed = true; 1991 } 1992 } 1993 1994 return update_needed; 1995 } 1996 1997 static void hidinput_change_resolution_multipliers(struct hid_device *hid) 1998 { 1999 struct hid_report_enum *rep_enum; 2000 struct hid_report *rep; 2001 int ret; 2002 2003 rep_enum = &hid->report_enum[HID_FEATURE_REPORT]; 2004 list_for_each_entry(rep, &rep_enum->report_list, list) { 2005 bool update_needed = __hidinput_change_resolution_multipliers(hid, 2006 rep, true); 2007 2008 if (update_needed) { 2009 ret = __hid_request(hid, rep, HID_REQ_SET_REPORT); 2010 if (ret) { 2011 __hidinput_change_resolution_multipliers(hid, 2012 rep, false); 2013 return; 2014 } 2015 } 2016 } 2017 2018 /* refresh our structs */ 2019 hid_setup_resolution_multiplier(hid); 2020 } 2021 2022 static void report_features(struct hid_device *hid) 2023 { 2024 struct hid_driver *drv = hid->driver; 2025 struct hid_report_enum *rep_enum; 2026 struct hid_report *rep; 2027 struct hid_usage *usage; 2028 int i, j; 2029 2030 rep_enum = &hid->report_enum[HID_FEATURE_REPORT]; 2031 list_for_each_entry(rep, &rep_enum->report_list, list) 2032 for (i = 0; i < rep->maxfield; i++) { 2033 /* Ignore if report count is out of bounds. */ 2034 if (rep->field[i]->report_count < 1) 2035 continue; 2036 2037 for (j = 0; j < rep->field[i]->maxusage; j++) { 2038 usage = &rep->field[i]->usage[j]; 2039 2040 /* Verify if Battery Strength feature is available */ 2041 if (usage->hid == HID_DC_BATTERYSTRENGTH) 2042 hidinput_setup_battery(hid, HID_FEATURE_REPORT, 2043 rep->field[i], false); 2044 2045 if (drv->feature_mapping) 2046 drv->feature_mapping(hid, rep->field[i], usage); 2047 } 2048 } 2049 } 2050 2051 static struct hid_input *hidinput_allocate(struct hid_device *hid, 2052 unsigned int application) 2053 { 2054 struct hid_input *hidinput = kzalloc_obj(*hidinput); 2055 struct input_dev *input_dev = input_allocate_device(); 2056 const char *suffix = NULL; 2057 size_t suffix_len, name_len; 2058 2059 if (!hidinput || !input_dev) 2060 goto fail; 2061 2062 if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) && 2063 hid->maxapplication > 1) { 2064 switch (application) { 2065 case HID_GD_KEYBOARD: 2066 suffix = "Keyboard"; 2067 break; 2068 case HID_GD_KEYPAD: 2069 suffix = "Keypad"; 2070 break; 2071 case HID_GD_MOUSE: 2072 suffix = "Mouse"; 2073 break; 2074 case HID_DG_PEN: 2075 /* 2076 * yes, there is an issue here: 2077 * DG_PEN -> "Stylus" 2078 * DG_STYLUS -> "Pen" 2079 * But changing this now means users with config snippets 2080 * will have to change it and the test suite will not be happy. 2081 */ 2082 suffix = "Stylus"; 2083 break; 2084 case HID_DG_STYLUS: 2085 suffix = "Pen"; 2086 break; 2087 case HID_DG_TOUCHSCREEN: 2088 suffix = "Touchscreen"; 2089 break; 2090 case HID_DG_TOUCHPAD: 2091 suffix = "Touchpad"; 2092 break; 2093 case HID_GD_SYSTEM_CONTROL: 2094 suffix = "System Control"; 2095 break; 2096 case HID_CP_CONSUMER_CONTROL: 2097 suffix = "Consumer Control"; 2098 break; 2099 case HID_GD_WIRELESS_RADIO_CTLS: 2100 suffix = "Wireless Radio Control"; 2101 break; 2102 case HID_GD_SYSTEM_MULTIAXIS: 2103 suffix = "System Multi Axis"; 2104 break; 2105 default: 2106 break; 2107 } 2108 } 2109 2110 if (suffix) { 2111 name_len = strlen(hid->name); 2112 suffix_len = strlen(suffix); 2113 if ((name_len < suffix_len) || 2114 strcmp(hid->name + name_len - suffix_len, suffix)) { 2115 hidinput->name = kasprintf(GFP_KERNEL, "%s %s", 2116 hid->name, suffix); 2117 if (!hidinput->name) 2118 goto fail; 2119 } 2120 } 2121 2122 input_set_drvdata(input_dev, hid); 2123 input_dev->event = hidinput_input_event; 2124 input_dev->open = hidinput_open; 2125 input_dev->close = hidinput_close; 2126 input_dev->setkeycode = hidinput_setkeycode; 2127 input_dev->getkeycode = hidinput_getkeycode; 2128 2129 input_dev->name = hidinput->name ? hidinput->name : hid->name; 2130 input_dev->phys = hid->phys; 2131 input_dev->uniq = hid->uniq; 2132 input_dev->id.bustype = hid->bus; 2133 input_dev->id.vendor = hid->vendor; 2134 input_dev->id.product = hid->product; 2135 input_dev->id.version = hid->version; 2136 input_dev->dev.parent = &hid->dev; 2137 2138 hidinput->input = input_dev; 2139 hidinput->application = application; 2140 list_add_tail(&hidinput->list, &hid->inputs); 2141 2142 INIT_LIST_HEAD(&hidinput->reports); 2143 2144 return hidinput; 2145 2146 fail: 2147 kfree(hidinput); 2148 input_free_device(input_dev); 2149 hid_err(hid, "Out of memory during hid input probe\n"); 2150 return NULL; 2151 } 2152 2153 static bool hidinput_has_been_populated(struct hid_input *hidinput) 2154 { 2155 int i; 2156 unsigned long r = 0; 2157 2158 for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++) 2159 r |= hidinput->input->evbit[i]; 2160 2161 for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++) 2162 r |= hidinput->input->keybit[i]; 2163 2164 for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++) 2165 r |= hidinput->input->relbit[i]; 2166 2167 for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++) 2168 r |= hidinput->input->absbit[i]; 2169 2170 for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++) 2171 r |= hidinput->input->mscbit[i]; 2172 2173 for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++) 2174 r |= hidinput->input->ledbit[i]; 2175 2176 for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++) 2177 r |= hidinput->input->sndbit[i]; 2178 2179 for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++) 2180 r |= hidinput->input->ffbit[i]; 2181 2182 for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++) 2183 r |= hidinput->input->swbit[i]; 2184 2185 return !!r; 2186 } 2187 2188 static void hidinput_cleanup_hidinput(struct hid_device *hid, 2189 struct hid_input *hidinput) 2190 { 2191 struct hid_report *report; 2192 int i, k; 2193 2194 list_del(&hidinput->list); 2195 input_free_device(hidinput->input); 2196 kfree(hidinput->name); 2197 2198 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 2199 if (k == HID_OUTPUT_REPORT && 2200 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS) 2201 continue; 2202 2203 list_for_each_entry(report, &hid->report_enum[k].report_list, 2204 list) { 2205 2206 for (i = 0; i < report->maxfield; i++) 2207 if (report->field[i]->hidinput == hidinput) 2208 report->field[i]->hidinput = NULL; 2209 } 2210 } 2211 2212 kfree(hidinput); 2213 } 2214 2215 static struct hid_input *hidinput_match(struct hid_report *report) 2216 { 2217 struct hid_device *hid = report->device; 2218 struct hid_input *hidinput; 2219 2220 list_for_each_entry(hidinput, &hid->inputs, list) { 2221 if (hidinput->report && 2222 hidinput->report->id == report->id) 2223 return hidinput; 2224 } 2225 2226 return NULL; 2227 } 2228 2229 static struct hid_input *hidinput_match_application(struct hid_report *report) 2230 { 2231 struct hid_device *hid = report->device; 2232 struct hid_input *hidinput; 2233 2234 list_for_each_entry(hidinput, &hid->inputs, list) { 2235 if (hidinput->application == report->application) 2236 return hidinput; 2237 2238 /* 2239 * Keep SystemControl and ConsumerControl applications together 2240 * with the main keyboard, if present. 2241 */ 2242 if ((report->application == HID_GD_SYSTEM_CONTROL || 2243 report->application == HID_CP_CONSUMER_CONTROL) && 2244 hidinput->application == HID_GD_KEYBOARD) { 2245 return hidinput; 2246 } 2247 } 2248 2249 return NULL; 2250 } 2251 2252 static inline void hidinput_configure_usages(struct hid_input *hidinput, 2253 struct hid_report *report) 2254 { 2255 int i, j, k; 2256 int first_field_index = 0; 2257 int slot_collection_index = -1; 2258 int prev_collection_index = -1; 2259 unsigned int slot_idx = 0; 2260 struct hid_field *field; 2261 2262 /* 2263 * First tag all the fields that are part of a slot, 2264 * a slot needs to have one Contact ID in the collection 2265 */ 2266 for (i = 0; i < report->maxfield; i++) { 2267 field = report->field[i]; 2268 2269 /* ignore fields without usage */ 2270 if (field->maxusage < 1) 2271 continue; 2272 2273 /* 2274 * janitoring when collection_index changes 2275 */ 2276 if (prev_collection_index != field->usage->collection_index) { 2277 prev_collection_index = field->usage->collection_index; 2278 first_field_index = i; 2279 } 2280 2281 /* 2282 * if we already found a Contact ID in the collection, 2283 * tag and continue to the next. 2284 */ 2285 if (slot_collection_index == field->usage->collection_index) { 2286 field->slot_idx = slot_idx; 2287 continue; 2288 } 2289 2290 /* check if the current field has Contact ID */ 2291 for (j = 0; j < field->maxusage; j++) { 2292 if (field->usage[j].hid == HID_DG_CONTACTID) { 2293 slot_collection_index = field->usage->collection_index; 2294 slot_idx++; 2295 2296 /* 2297 * mark all previous fields and this one in the 2298 * current collection to be slotted. 2299 */ 2300 for (k = first_field_index; k <= i; k++) 2301 report->field[k]->slot_idx = slot_idx; 2302 break; 2303 } 2304 } 2305 } 2306 2307 for (i = 0; i < report->maxfield; i++) 2308 for (j = 0; j < report->field[i]->maxusage; j++) 2309 hidinput_configure_usage(hidinput, report->field[i], 2310 report->field[i]->usage + j, 2311 j); 2312 } 2313 2314 /* 2315 * Register the input device; print a message. 2316 * Configure the input layer interface 2317 * Read all reports and initialize the absolute field values. 2318 */ 2319 2320 int hidinput_connect(struct hid_device *hid, unsigned int force) 2321 { 2322 struct hid_driver *drv = hid->driver; 2323 struct hid_report *report; 2324 struct hid_input *next, *hidinput = NULL; 2325 unsigned int application; 2326 int i, k; 2327 2328 INIT_LIST_HEAD(&hid->inputs); 2329 INIT_WORK(&hid->led_work, hidinput_led_worker); 2330 2331 hid->status &= ~HID_STAT_DUP_DETECTED; 2332 2333 if (!force) { 2334 for (i = 0; i < hid->maxcollection; i++) { 2335 struct hid_collection *col = &hid->collection[i]; 2336 if (col->type == HID_COLLECTION_APPLICATION || 2337 col->type == HID_COLLECTION_PHYSICAL) 2338 if (IS_INPUT_APPLICATION(col->usage)) 2339 break; 2340 } 2341 2342 if (i == hid->maxcollection) 2343 return -1; 2344 } 2345 2346 report_features(hid); 2347 2348 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 2349 if (k == HID_OUTPUT_REPORT && 2350 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS) 2351 continue; 2352 2353 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 2354 2355 if (!report->maxfield) 2356 continue; 2357 2358 application = report->application; 2359 2360 /* 2361 * Find the previous hidinput report attached 2362 * to this report id. 2363 */ 2364 if (hid->quirks & HID_QUIRK_MULTI_INPUT) 2365 hidinput = hidinput_match(report); 2366 else if (hid->maxapplication > 1 && 2367 (hid->quirks & HID_QUIRK_INPUT_PER_APP)) 2368 hidinput = hidinput_match_application(report); 2369 2370 if (!hidinput) { 2371 hidinput = hidinput_allocate(hid, application); 2372 if (!hidinput) 2373 goto out_unwind; 2374 } 2375 2376 hidinput_configure_usages(hidinput, report); 2377 2378 if (hid->quirks & HID_QUIRK_MULTI_INPUT) 2379 hidinput->report = report; 2380 2381 list_add_tail(&report->hidinput_list, 2382 &hidinput->reports); 2383 } 2384 } 2385 2386 hidinput_change_resolution_multipliers(hid); 2387 2388 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { 2389 if (drv->input_configured && 2390 drv->input_configured(hid, hidinput)) 2391 goto out_unwind; 2392 2393 if (!hidinput_has_been_populated(hidinput)) { 2394 /* no need to register an input device not populated */ 2395 hidinput_cleanup_hidinput(hid, hidinput); 2396 continue; 2397 } 2398 2399 if (input_register_device(hidinput->input)) 2400 goto out_unwind; 2401 hidinput->registered = true; 2402 } 2403 2404 if (list_empty(&hid->inputs)) { 2405 hid_dbg(hid, "No inputs registered, leaving\n"); 2406 goto out_unwind; 2407 } 2408 2409 if (hid->status & HID_STAT_DUP_DETECTED) 2410 hid_dbg(hid, 2411 "Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n"); 2412 2413 return 0; 2414 2415 out_unwind: 2416 /* unwind the ones we already registered */ 2417 hidinput_disconnect(hid); 2418 2419 return -1; 2420 } 2421 EXPORT_SYMBOL_GPL(hidinput_connect); 2422 2423 void hidinput_disconnect(struct hid_device *hid) 2424 { 2425 struct hid_input *hidinput, *next; 2426 2427 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { 2428 list_del(&hidinput->list); 2429 if (hidinput->registered) 2430 input_unregister_device(hidinput->input); 2431 else 2432 input_free_device(hidinput->input); 2433 kfree(hidinput->name); 2434 kfree(hidinput); 2435 } 2436 2437 /* led_work is spawned by input_dev callbacks, but doesn't access the 2438 * parent input_dev at all. Once all input devices are removed, we 2439 * know that led_work will never get restarted, so we can cancel it 2440 * synchronously and are safe. */ 2441 cancel_work_sync(&hid->led_work); 2442 } 2443 EXPORT_SYMBOL_GPL(hidinput_disconnect); 2444 2445 void hidinput_reset_resume(struct hid_device *hid) 2446 { 2447 /* renegotiate host-device shared state after reset */ 2448 hidinput_change_resolution_multipliers(hid); 2449 } 2450 EXPORT_SYMBOL_GPL(hidinput_reset_resume); 2451 2452 #ifdef CONFIG_HID_KUNIT_TEST 2453 #include "hid-input-test.c" 2454 #endif 2455