1 /* 2 * Copyright (c) 2000-2001 Vojtech Pavlik 3 * Copyright (c) 2006-2010 Jiri Kosina 4 * 5 * HID to Linux Input mapping 6 */ 7 8 /* 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 * Should you need to contact me, the author, you can do so either by 24 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 25 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 26 */ 27 28 #include <linux/module.h> 29 #include <linux/slab.h> 30 #include <linux/kernel.h> 31 32 #include <linux/hid.h> 33 #include <linux/hid-debug.h> 34 35 #define unk KEY_UNKNOWN 36 37 static const unsigned char hid_keyboard[256] = { 38 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 39 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, 40 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, 41 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, 42 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, 43 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, 44 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, 45 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, 46 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk, 47 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 48 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 49 unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk, 50 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 51 unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 52 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, 53 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk 54 }; 55 56 static const struct { 57 __s32 x; 58 __s32 y; 59 } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; 60 61 #define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c)) 62 #define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c)) 63 #define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c)) 64 #define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c)) 65 66 #define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ 67 &max, EV_ABS, (c)) 68 #define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ 69 &max, EV_KEY, (c)) 70 71 static bool match_scancode(struct hid_usage *usage, 72 unsigned int cur_idx, unsigned int scancode) 73 { 74 return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode; 75 } 76 77 static bool match_keycode(struct hid_usage *usage, 78 unsigned int cur_idx, unsigned int keycode) 79 { 80 /* 81 * We should exclude unmapped usages when doing lookup by keycode. 82 */ 83 return (usage->type == EV_KEY && usage->code == keycode); 84 } 85 86 static bool match_index(struct hid_usage *usage, 87 unsigned int cur_idx, unsigned int idx) 88 { 89 return cur_idx == idx; 90 } 91 92 typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage, 93 unsigned int cur_idx, unsigned int val); 94 95 static struct hid_usage *hidinput_find_key(struct hid_device *hid, 96 hid_usage_cmp_t match, 97 unsigned int value, 98 unsigned int *usage_idx) 99 { 100 unsigned int i, j, k, cur_idx = 0; 101 struct hid_report *report; 102 struct hid_usage *usage; 103 104 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 105 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 106 for (i = 0; i < report->maxfield; i++) { 107 for (j = 0; j < report->field[i]->maxusage; j++) { 108 usage = report->field[i]->usage + j; 109 if (usage->type == EV_KEY || usage->type == 0) { 110 if (match(usage, cur_idx, value)) { 111 if (usage_idx) 112 *usage_idx = cur_idx; 113 return usage; 114 } 115 cur_idx++; 116 } 117 } 118 } 119 } 120 } 121 return NULL; 122 } 123 124 static struct hid_usage *hidinput_locate_usage(struct hid_device *hid, 125 const struct input_keymap_entry *ke, 126 unsigned int *index) 127 { 128 struct hid_usage *usage; 129 unsigned int scancode; 130 131 if (ke->flags & INPUT_KEYMAP_BY_INDEX) 132 usage = hidinput_find_key(hid, match_index, ke->index, index); 133 else if (input_scancode_to_scalar(ke, &scancode) == 0) 134 usage = hidinput_find_key(hid, match_scancode, scancode, index); 135 else 136 usage = NULL; 137 138 return usage; 139 } 140 141 static int hidinput_getkeycode(struct input_dev *dev, 142 struct input_keymap_entry *ke) 143 { 144 struct hid_device *hid = input_get_drvdata(dev); 145 struct hid_usage *usage; 146 unsigned int scancode, index; 147 148 usage = hidinput_locate_usage(hid, ke, &index); 149 if (usage) { 150 ke->keycode = usage->type == EV_KEY ? 151 usage->code : KEY_RESERVED; 152 ke->index = index; 153 scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE); 154 ke->len = sizeof(scancode); 155 memcpy(ke->scancode, &scancode, sizeof(scancode)); 156 return 0; 157 } 158 159 return -EINVAL; 160 } 161 162 static int hidinput_setkeycode(struct input_dev *dev, 163 const struct input_keymap_entry *ke, 164 unsigned int *old_keycode) 165 { 166 struct hid_device *hid = input_get_drvdata(dev); 167 struct hid_usage *usage; 168 169 usage = hidinput_locate_usage(hid, ke, NULL); 170 if (usage) { 171 *old_keycode = usage->type == EV_KEY ? 172 usage->code : KEY_RESERVED; 173 usage->code = ke->keycode; 174 175 clear_bit(*old_keycode, dev->keybit); 176 set_bit(usage->code, dev->keybit); 177 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", 178 usage->code, usage->hid); 179 180 /* 181 * Set the keybit for the old keycode if the old keycode is used 182 * by another key 183 */ 184 if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL)) 185 set_bit(*old_keycode, dev->keybit); 186 187 return 0; 188 } 189 190 return -EINVAL; 191 } 192 193 194 /** 195 * hidinput_calc_abs_res - calculate an absolute axis resolution 196 * @field: the HID report field to calculate resolution for 197 * @code: axis code 198 * 199 * The formula is: 200 * (logical_maximum - logical_minimum) 201 * resolution = ---------------------------------------------------------- 202 * (physical_maximum - physical_minimum) * 10 ^ unit_exponent 203 * 204 * as seen in the HID specification v1.11 6.2.2.7 Global Items. 205 * 206 * Only exponent 1 length units are processed. Centimeters are converted to 207 * inches. Degrees are converted to radians. 208 */ 209 static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) 210 { 211 __s32 unit_exponent = field->unit_exponent; 212 __s32 logical_extents = field->logical_maximum - 213 field->logical_minimum; 214 __s32 physical_extents = field->physical_maximum - 215 field->physical_minimum; 216 __s32 prev; 217 218 /* Check if the extents are sane */ 219 if (logical_extents <= 0 || physical_extents <= 0) 220 return 0; 221 222 /* 223 * Verify and convert units. 224 * See HID specification v1.11 6.2.2.7 Global Items for unit decoding 225 */ 226 if (code == ABS_X || code == ABS_Y || code == ABS_Z) { 227 if (field->unit == 0x11) { /* If centimeters */ 228 /* Convert to inches */ 229 prev = logical_extents; 230 logical_extents *= 254; 231 if (logical_extents < prev) 232 return 0; 233 unit_exponent += 2; 234 } else if (field->unit != 0x13) { /* If not inches */ 235 return 0; 236 } 237 } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) { 238 if (field->unit == 0x14) { /* If degrees */ 239 /* Convert to radians */ 240 prev = logical_extents; 241 logical_extents *= 573; 242 if (logical_extents < prev) 243 return 0; 244 unit_exponent += 1; 245 } else if (field->unit != 0x12) { /* If not radians */ 246 return 0; 247 } 248 } else { 249 return 0; 250 } 251 252 /* Apply negative unit exponent */ 253 for (; unit_exponent < 0; unit_exponent++) { 254 prev = logical_extents; 255 logical_extents *= 10; 256 if (logical_extents < prev) 257 return 0; 258 } 259 /* Apply positive unit exponent */ 260 for (; unit_exponent > 0; unit_exponent--) { 261 prev = physical_extents; 262 physical_extents *= 10; 263 if (physical_extents < prev) 264 return 0; 265 } 266 267 /* Calculate resolution */ 268 return logical_extents / physical_extents; 269 } 270 271 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, 272 struct hid_usage *usage) 273 { 274 struct input_dev *input = hidinput->input; 275 struct hid_device *device = input_get_drvdata(input); 276 int max = 0, code; 277 unsigned long *bit = NULL; 278 279 field->hidinput = hidinput; 280 281 if (field->flags & HID_MAIN_ITEM_CONSTANT) 282 goto ignore; 283 284 /* only LED usages are supported in output fields */ 285 if (field->report_type == HID_OUTPUT_REPORT && 286 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) { 287 goto ignore; 288 } 289 290 if (device->driver->input_mapping) { 291 int ret = device->driver->input_mapping(device, hidinput, field, 292 usage, &bit, &max); 293 if (ret > 0) 294 goto mapped; 295 if (ret < 0) 296 goto ignore; 297 } 298 299 switch (usage->hid & HID_USAGE_PAGE) { 300 case HID_UP_UNDEFINED: 301 goto ignore; 302 303 case HID_UP_KEYBOARD: 304 set_bit(EV_REP, input->evbit); 305 306 if ((usage->hid & HID_USAGE) < 256) { 307 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; 308 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); 309 } else 310 map_key(KEY_UNKNOWN); 311 312 break; 313 314 case HID_UP_BUTTON: 315 code = ((usage->hid - 1) & HID_USAGE); 316 317 switch (field->application) { 318 case HID_GD_MOUSE: 319 case HID_GD_POINTER: code += 0x110; break; 320 case HID_GD_JOYSTICK: 321 if (code <= 0xf) 322 code += BTN_JOYSTICK; 323 else 324 code += BTN_TRIGGER_HAPPY; 325 break; 326 case HID_GD_GAMEPAD: code += 0x130; break; 327 default: 328 switch (field->physical) { 329 case HID_GD_MOUSE: 330 case HID_GD_POINTER: code += 0x110; break; 331 case HID_GD_JOYSTICK: code += 0x120; break; 332 case HID_GD_GAMEPAD: code += 0x130; break; 333 default: code += 0x100; 334 } 335 } 336 337 map_key(code); 338 break; 339 340 case HID_UP_SIMULATION: 341 switch (usage->hid & 0xffff) { 342 case 0xba: map_abs(ABS_RUDDER); break; 343 case 0xbb: map_abs(ABS_THROTTLE); break; 344 case 0xc4: map_abs(ABS_GAS); break; 345 case 0xc5: map_abs(ABS_BRAKE); break; 346 case 0xc8: map_abs(ABS_WHEEL); break; 347 default: goto ignore; 348 } 349 break; 350 351 case HID_UP_GENDESK: 352 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ 353 switch (usage->hid & 0xf) { 354 case 0x1: map_key_clear(KEY_POWER); break; 355 case 0x2: map_key_clear(KEY_SLEEP); break; 356 case 0x3: map_key_clear(KEY_WAKEUP); break; 357 default: goto unknown; 358 } 359 break; 360 } 361 362 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */ 363 switch (usage->hid) { 364 case HID_GD_UP: usage->hat_dir = 1; break; 365 case HID_GD_DOWN: usage->hat_dir = 5; break; 366 case HID_GD_RIGHT: usage->hat_dir = 3; break; 367 case HID_GD_LEFT: usage->hat_dir = 7; break; 368 default: goto unknown; 369 } 370 if (field->dpad) { 371 map_abs(field->dpad); 372 goto ignore; 373 } 374 map_abs(ABS_HAT0X); 375 break; 376 } 377 378 switch (usage->hid) { 379 /* These usage IDs map directly to the usage codes. */ 380 case HID_GD_X: case HID_GD_Y: case HID_GD_Z: 381 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: 382 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL: 383 if (field->flags & HID_MAIN_ITEM_RELATIVE) 384 map_rel(usage->hid & 0xf); 385 else 386 map_abs(usage->hid & 0xf); 387 break; 388 389 case HID_GD_HATSWITCH: 390 usage->hat_min = field->logical_minimum; 391 usage->hat_max = field->logical_maximum; 392 map_abs(ABS_HAT0X); 393 break; 394 395 case HID_GD_START: map_key_clear(BTN_START); break; 396 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; 397 398 default: goto unknown; 399 } 400 401 break; 402 403 case HID_UP_LED: 404 switch (usage->hid & 0xffff) { /* HID-Value: */ 405 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */ 406 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */ 407 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */ 408 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */ 409 case 0x05: map_led (LED_KANA); break; /* "Kana" */ 410 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */ 411 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */ 412 case 0x09: map_led (LED_MUTE); break; /* "Mute" */ 413 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */ 414 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */ 415 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */ 416 417 default: goto ignore; 418 } 419 break; 420 421 case HID_UP_DIGITIZER: 422 switch (usage->hid & 0xff) { 423 case 0x00: /* Undefined */ 424 goto ignore; 425 426 case 0x30: /* TipPressure */ 427 if (!test_bit(BTN_TOUCH, input->keybit)) { 428 device->quirks |= HID_QUIRK_NOTOUCH; 429 set_bit(EV_KEY, input->evbit); 430 set_bit(BTN_TOUCH, input->keybit); 431 } 432 map_abs_clear(ABS_PRESSURE); 433 break; 434 435 case 0x32: /* InRange */ 436 switch (field->physical & 0xff) { 437 case 0x21: map_key(BTN_TOOL_MOUSE); break; 438 case 0x22: map_key(BTN_TOOL_FINGER); break; 439 default: map_key(BTN_TOOL_PEN); break; 440 } 441 break; 442 443 case 0x3c: /* Invert */ 444 map_key_clear(BTN_TOOL_RUBBER); 445 break; 446 447 case 0x33: /* Touch */ 448 case 0x42: /* TipSwitch */ 449 case 0x43: /* TipSwitch2 */ 450 device->quirks &= ~HID_QUIRK_NOTOUCH; 451 map_key_clear(BTN_TOUCH); 452 break; 453 454 case 0x44: /* BarrelSwitch */ 455 map_key_clear(BTN_STYLUS); 456 break; 457 458 case 0x46: /* TabletPick */ 459 map_key_clear(BTN_STYLUS2); 460 break; 461 462 default: goto unknown; 463 } 464 break; 465 466 case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */ 467 switch (usage->hid & HID_USAGE) { 468 case 0x000: goto ignore; 469 case 0x034: map_key_clear(KEY_SLEEP); break; 470 case 0x036: map_key_clear(BTN_MISC); break; 471 472 case 0x040: map_key_clear(KEY_MENU); break; 473 case 0x045: map_key_clear(KEY_RADIO); break; 474 475 case 0x083: map_key_clear(KEY_LAST); break; 476 case 0x088: map_key_clear(KEY_PC); break; 477 case 0x089: map_key_clear(KEY_TV); break; 478 case 0x08a: map_key_clear(KEY_WWW); break; 479 case 0x08b: map_key_clear(KEY_DVD); break; 480 case 0x08c: map_key_clear(KEY_PHONE); break; 481 case 0x08d: map_key_clear(KEY_PROGRAM); break; 482 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break; 483 case 0x08f: map_key_clear(KEY_GAMES); break; 484 case 0x090: map_key_clear(KEY_MEMO); break; 485 case 0x091: map_key_clear(KEY_CD); break; 486 case 0x092: map_key_clear(KEY_VCR); break; 487 case 0x093: map_key_clear(KEY_TUNER); break; 488 case 0x094: map_key_clear(KEY_EXIT); break; 489 case 0x095: map_key_clear(KEY_HELP); break; 490 case 0x096: map_key_clear(KEY_TAPE); break; 491 case 0x097: map_key_clear(KEY_TV2); break; 492 case 0x098: map_key_clear(KEY_SAT); break; 493 case 0x09a: map_key_clear(KEY_PVR); break; 494 495 case 0x09c: map_key_clear(KEY_CHANNELUP); break; 496 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break; 497 case 0x0a0: map_key_clear(KEY_VCR2); break; 498 499 case 0x0b0: map_key_clear(KEY_PLAY); break; 500 case 0x0b1: map_key_clear(KEY_PAUSE); break; 501 case 0x0b2: map_key_clear(KEY_RECORD); break; 502 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; 503 case 0x0b4: map_key_clear(KEY_REWIND); break; 504 case 0x0b5: map_key_clear(KEY_NEXTSONG); break; 505 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; 506 case 0x0b7: map_key_clear(KEY_STOPCD); break; 507 case 0x0b8: map_key_clear(KEY_EJECTCD); break; 508 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break; 509 510 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; 511 case 0x0e0: map_abs_clear(ABS_VOLUME); break; 512 case 0x0e2: map_key_clear(KEY_MUTE); break; 513 case 0x0e5: map_key_clear(KEY_BASSBOOST); break; 514 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; 515 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; 516 517 case 0x182: map_key_clear(KEY_BOOKMARKS); break; 518 case 0x183: map_key_clear(KEY_CONFIG); break; 519 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break; 520 case 0x185: map_key_clear(KEY_EDITOR); break; 521 case 0x186: map_key_clear(KEY_SPREADSHEET); break; 522 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break; 523 case 0x188: map_key_clear(KEY_PRESENTATION); break; 524 case 0x189: map_key_clear(KEY_DATABASE); break; 525 case 0x18a: map_key_clear(KEY_MAIL); break; 526 case 0x18b: map_key_clear(KEY_NEWS); break; 527 case 0x18c: map_key_clear(KEY_VOICEMAIL); break; 528 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break; 529 case 0x18e: map_key_clear(KEY_CALENDAR); break; 530 case 0x191: map_key_clear(KEY_FINANCE); break; 531 case 0x192: map_key_clear(KEY_CALC); break; 532 case 0x194: map_key_clear(KEY_FILE); break; 533 case 0x196: map_key_clear(KEY_WWW); break; 534 case 0x199: map_key_clear(KEY_CHAT); break; 535 case 0x19c: map_key_clear(KEY_LOGOFF); break; 536 case 0x19e: map_key_clear(KEY_COFFEE); break; 537 case 0x1a6: map_key_clear(KEY_HELP); break; 538 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break; 539 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break; 540 case 0x1b6: map_key_clear(KEY_MEDIA); break; 541 case 0x1b7: map_key_clear(KEY_SOUND); break; 542 case 0x1bc: map_key_clear(KEY_MESSENGER); break; 543 case 0x1bd: map_key_clear(KEY_INFO); break; 544 case 0x201: map_key_clear(KEY_NEW); break; 545 case 0x202: map_key_clear(KEY_OPEN); break; 546 case 0x203: map_key_clear(KEY_CLOSE); break; 547 case 0x204: map_key_clear(KEY_EXIT); break; 548 case 0x207: map_key_clear(KEY_SAVE); break; 549 case 0x208: map_key_clear(KEY_PRINT); break; 550 case 0x209: map_key_clear(KEY_PROPS); break; 551 case 0x21a: map_key_clear(KEY_UNDO); break; 552 case 0x21b: map_key_clear(KEY_COPY); break; 553 case 0x21c: map_key_clear(KEY_CUT); break; 554 case 0x21d: map_key_clear(KEY_PASTE); break; 555 case 0x21f: map_key_clear(KEY_FIND); break; 556 case 0x221: map_key_clear(KEY_SEARCH); break; 557 case 0x222: map_key_clear(KEY_GOTO); break; 558 case 0x223: map_key_clear(KEY_HOMEPAGE); break; 559 case 0x224: map_key_clear(KEY_BACK); break; 560 case 0x225: map_key_clear(KEY_FORWARD); break; 561 case 0x226: map_key_clear(KEY_STOP); break; 562 case 0x227: map_key_clear(KEY_REFRESH); break; 563 case 0x22a: map_key_clear(KEY_BOOKMARKS); break; 564 case 0x22d: map_key_clear(KEY_ZOOMIN); break; 565 case 0x22e: map_key_clear(KEY_ZOOMOUT); break; 566 case 0x22f: map_key_clear(KEY_ZOOMRESET); break; 567 case 0x233: map_key_clear(KEY_SCROLLUP); break; 568 case 0x234: map_key_clear(KEY_SCROLLDOWN); break; 569 case 0x238: map_rel(REL_HWHEEL); break; 570 case 0x25f: map_key_clear(KEY_CANCEL); break; 571 case 0x279: map_key_clear(KEY_REDO); break; 572 573 case 0x289: map_key_clear(KEY_REPLY); break; 574 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break; 575 case 0x28c: map_key_clear(KEY_SEND); break; 576 577 default: goto ignore; 578 } 579 break; 580 581 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ 582 set_bit(EV_REP, input->evbit); 583 switch (usage->hid & HID_USAGE) { 584 case 0x021: map_key_clear(KEY_PRINT); break; 585 case 0x070: map_key_clear(KEY_HP); break; 586 case 0x071: map_key_clear(KEY_CAMERA); break; 587 case 0x072: map_key_clear(KEY_SOUND); break; 588 case 0x073: map_key_clear(KEY_QUESTION); break; 589 case 0x080: map_key_clear(KEY_EMAIL); break; 590 case 0x081: map_key_clear(KEY_CHAT); break; 591 case 0x082: map_key_clear(KEY_SEARCH); break; 592 case 0x083: map_key_clear(KEY_CONNECT); break; 593 case 0x084: map_key_clear(KEY_FINANCE); break; 594 case 0x085: map_key_clear(KEY_SPORT); break; 595 case 0x086: map_key_clear(KEY_SHOP); break; 596 default: goto ignore; 597 } 598 break; 599 600 case HID_UP_MSVENDOR: 601 goto ignore; 602 603 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */ 604 set_bit(EV_REP, input->evbit); 605 goto ignore; 606 607 case HID_UP_LOGIVENDOR: 608 goto ignore; 609 610 case HID_UP_PID: 611 switch (usage->hid & HID_USAGE) { 612 case 0xa4: map_key_clear(BTN_DEAD); break; 613 default: goto ignore; 614 } 615 break; 616 617 default: 618 unknown: 619 if (field->report_size == 1) { 620 if (field->report->type == HID_OUTPUT_REPORT) { 621 map_led(LED_MISC); 622 break; 623 } 624 map_key(BTN_MISC); 625 break; 626 } 627 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 628 map_rel(REL_MISC); 629 break; 630 } 631 map_abs(ABS_MISC); 632 break; 633 } 634 635 mapped: 636 if (device->driver->input_mapped && device->driver->input_mapped(device, 637 hidinput, field, usage, &bit, &max) < 0) 638 goto ignore; 639 640 set_bit(usage->type, input->evbit); 641 642 while (usage->code <= max && test_and_set_bit(usage->code, bit)) 643 usage->code = find_next_zero_bit(bit, max + 1, usage->code); 644 645 if (usage->code > max) 646 goto ignore; 647 648 649 if (usage->type == EV_ABS) { 650 651 int a = field->logical_minimum; 652 int b = field->logical_maximum; 653 654 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { 655 a = field->logical_minimum = 0; 656 b = field->logical_maximum = 255; 657 } 658 659 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) 660 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); 661 else input_set_abs_params(input, usage->code, a, b, 0, 0); 662 663 input_abs_set_res(input, usage->code, 664 hidinput_calc_abs_res(field, usage->code)); 665 666 /* use a larger default input buffer for MT devices */ 667 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0) 668 input_set_events_per_packet(input, 60); 669 } 670 671 if (usage->type == EV_ABS && 672 (usage->hat_min < usage->hat_max || usage->hat_dir)) { 673 int i; 674 for (i = usage->code; i < usage->code + 2 && i <= max; i++) { 675 input_set_abs_params(input, i, -1, 1, 0, 0); 676 set_bit(i, input->absbit); 677 } 678 if (usage->hat_dir && !field->dpad) 679 field->dpad = usage->code; 680 } 681 682 /* for those devices which produce Consumer volume usage as relative, 683 * we emulate pressing volumeup/volumedown appropriate number of times 684 * in hidinput_hid_event() 685 */ 686 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 687 (usage->code == ABS_VOLUME)) { 688 set_bit(KEY_VOLUMEUP, input->keybit); 689 set_bit(KEY_VOLUMEDOWN, input->keybit); 690 } 691 692 if (usage->type == EV_KEY) { 693 set_bit(EV_MSC, input->evbit); 694 set_bit(MSC_SCAN, input->mscbit); 695 } 696 697 ignore: 698 return; 699 700 } 701 702 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) 703 { 704 struct input_dev *input; 705 unsigned *quirks = &hid->quirks; 706 707 if (!field->hidinput) 708 return; 709 710 input = field->hidinput->input; 711 712 if (!usage->type) 713 return; 714 715 if (usage->hat_min < usage->hat_max || usage->hat_dir) { 716 int hat_dir = usage->hat_dir; 717 if (!hat_dir) 718 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; 719 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; 720 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); 721 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); 722 return; 723 } 724 725 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ 726 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); 727 return; 728 } 729 730 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ 731 if (value) { 732 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); 733 return; 734 } 735 input_event(input, usage->type, usage->code, 0); 736 input_event(input, usage->type, BTN_TOOL_RUBBER, 0); 737 return; 738 } 739 740 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ 741 int a = field->logical_minimum; 742 int b = field->logical_maximum; 743 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); 744 } 745 746 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ 747 dbg_hid("Maximum Effects - %d\n",value); 748 return; 749 } 750 751 if (usage->hid == (HID_UP_PID | 0x7fUL)) { 752 dbg_hid("PID Pool Report\n"); 753 return; 754 } 755 756 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ 757 return; 758 759 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 760 (usage->code == ABS_VOLUME)) { 761 int count = abs(value); 762 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; 763 int i; 764 765 for (i = 0; i < count; i++) { 766 input_event(input, EV_KEY, direction, 1); 767 input_sync(input); 768 input_event(input, EV_KEY, direction, 0); 769 input_sync(input); 770 } 771 return; 772 } 773 774 /* report the usage code as scancode if the key status has changed */ 775 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value) 776 input_event(input, EV_MSC, MSC_SCAN, usage->hid); 777 778 input_event(input, usage->type, usage->code, value); 779 780 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY)) 781 input_event(input, usage->type, usage->code, 0); 782 } 783 784 void hidinput_report_event(struct hid_device *hid, struct hid_report *report) 785 { 786 struct hid_input *hidinput; 787 788 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC) 789 return; 790 791 list_for_each_entry(hidinput, &hid->inputs, list) 792 input_sync(hidinput->input); 793 } 794 EXPORT_SYMBOL_GPL(hidinput_report_event); 795 796 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field) 797 { 798 struct hid_report *report; 799 int i, j; 800 801 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { 802 for (i = 0; i < report->maxfield; i++) { 803 *field = report->field[i]; 804 for (j = 0; j < (*field)->maxusage; j++) 805 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) 806 return j; 807 } 808 } 809 return -1; 810 } 811 EXPORT_SYMBOL_GPL(hidinput_find_field); 812 813 static int hidinput_open(struct input_dev *dev) 814 { 815 struct hid_device *hid = input_get_drvdata(dev); 816 817 return hid->ll_driver->open(hid); 818 } 819 820 static void hidinput_close(struct input_dev *dev) 821 { 822 struct hid_device *hid = input_get_drvdata(dev); 823 824 hid->ll_driver->close(hid); 825 } 826 827 /* 828 * Register the input device; print a message. 829 * Configure the input layer interface 830 * Read all reports and initialize the absolute field values. 831 */ 832 833 int hidinput_connect(struct hid_device *hid, unsigned int force) 834 { 835 struct hid_report *report; 836 struct hid_input *hidinput = NULL; 837 struct input_dev *input_dev; 838 int i, j, k; 839 int max_report_type = HID_OUTPUT_REPORT; 840 841 INIT_LIST_HEAD(&hid->inputs); 842 843 if (!force) { 844 for (i = 0; i < hid->maxcollection; i++) { 845 struct hid_collection *col = &hid->collection[i]; 846 if (col->type == HID_COLLECTION_APPLICATION || 847 col->type == HID_COLLECTION_PHYSICAL) 848 if (IS_INPUT_APPLICATION(col->usage)) 849 break; 850 } 851 852 if (i == hid->maxcollection) 853 return -1; 854 } 855 856 if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS) 857 max_report_type = HID_INPUT_REPORT; 858 859 for (k = HID_INPUT_REPORT; k <= max_report_type; k++) 860 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 861 862 if (!report->maxfield) 863 continue; 864 865 if (!hidinput) { 866 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL); 867 input_dev = input_allocate_device(); 868 if (!hidinput || !input_dev) { 869 kfree(hidinput); 870 input_free_device(input_dev); 871 err_hid("Out of memory during hid input probe"); 872 goto out_unwind; 873 } 874 875 input_set_drvdata(input_dev, hid); 876 input_dev->event = 877 hid->ll_driver->hidinput_input_event; 878 input_dev->open = hidinput_open; 879 input_dev->close = hidinput_close; 880 input_dev->setkeycode_new = hidinput_setkeycode; 881 input_dev->getkeycode_new = hidinput_getkeycode; 882 883 input_dev->name = hid->name; 884 input_dev->phys = hid->phys; 885 input_dev->uniq = hid->uniq; 886 input_dev->id.bustype = hid->bus; 887 input_dev->id.vendor = hid->vendor; 888 input_dev->id.product = hid->product; 889 input_dev->id.version = hid->version; 890 input_dev->dev.parent = hid->dev.parent; 891 hidinput->input = input_dev; 892 list_add_tail(&hidinput->list, &hid->inputs); 893 } 894 895 for (i = 0; i < report->maxfield; i++) 896 for (j = 0; j < report->field[i]->maxusage; j++) 897 hidinput_configure_usage(hidinput, report->field[i], 898 report->field[i]->usage + j); 899 900 if (hid->quirks & HID_QUIRK_MULTI_INPUT) { 901 /* This will leave hidinput NULL, so that it 902 * allocates another one if we have more inputs on 903 * the same interface. Some devices (e.g. Happ's 904 * UGCI) cram a lot of unrelated inputs into the 905 * same interface. */ 906 hidinput->report = report; 907 if (input_register_device(hidinput->input)) 908 goto out_cleanup; 909 hidinput = NULL; 910 } 911 } 912 913 if (hidinput && input_register_device(hidinput->input)) 914 goto out_cleanup; 915 916 return 0; 917 918 out_cleanup: 919 input_free_device(hidinput->input); 920 kfree(hidinput); 921 out_unwind: 922 /* unwind the ones we already registered */ 923 hidinput_disconnect(hid); 924 925 return -1; 926 } 927 EXPORT_SYMBOL_GPL(hidinput_connect); 928 929 void hidinput_disconnect(struct hid_device *hid) 930 { 931 struct hid_input *hidinput, *next; 932 933 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { 934 list_del(&hidinput->list); 935 input_unregister_device(hidinput->input); 936 kfree(hidinput); 937 } 938 } 939 EXPORT_SYMBOL_GPL(hidinput_disconnect); 940 941