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,111,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,111,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("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 and inches are 207 * converted to millimeters. 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 millimeters */ 229 unit_exponent += 1; 230 } else if (field->unit == 0x13) { /* If inches */ 231 /* Convert to millimeters */ 232 prev = physical_extents; 233 physical_extents *= 254; 234 if (physical_extents < prev) 235 return 0; 236 unit_exponent -= 1; 237 } else { 238 return 0; 239 } 240 } else if (code == ABS_RX || code == ABS_RY || code == ABS_RZ) { 241 if (field->unit == 0x14) { /* If degrees */ 242 /* Convert to radians */ 243 prev = logical_extents; 244 logical_extents *= 573; 245 if (logical_extents < prev) 246 return 0; 247 unit_exponent += 1; 248 } else if (field->unit != 0x12) { /* If not radians */ 249 return 0; 250 } 251 } else { 252 return 0; 253 } 254 255 /* Apply negative unit exponent */ 256 for (; unit_exponent < 0; unit_exponent++) { 257 prev = logical_extents; 258 logical_extents *= 10; 259 if (logical_extents < prev) 260 return 0; 261 } 262 /* Apply positive unit exponent */ 263 for (; unit_exponent > 0; unit_exponent--) { 264 prev = physical_extents; 265 physical_extents *= 10; 266 if (physical_extents < prev) 267 return 0; 268 } 269 270 /* Calculate resolution */ 271 return logical_extents / physical_extents; 272 } 273 274 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, 275 struct hid_usage *usage) 276 { 277 struct input_dev *input = hidinput->input; 278 struct hid_device *device = input_get_drvdata(input); 279 int max = 0, code; 280 unsigned long *bit = NULL; 281 282 field->hidinput = hidinput; 283 284 if (field->flags & HID_MAIN_ITEM_CONSTANT) 285 goto ignore; 286 287 /* only LED usages are supported in output fields */ 288 if (field->report_type == HID_OUTPUT_REPORT && 289 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) { 290 goto ignore; 291 } 292 293 if (device->driver->input_mapping) { 294 int ret = device->driver->input_mapping(device, hidinput, field, 295 usage, &bit, &max); 296 if (ret > 0) 297 goto mapped; 298 if (ret < 0) 299 goto ignore; 300 } 301 302 switch (usage->hid & HID_USAGE_PAGE) { 303 case HID_UP_UNDEFINED: 304 goto ignore; 305 306 case HID_UP_KEYBOARD: 307 set_bit(EV_REP, input->evbit); 308 309 if ((usage->hid & HID_USAGE) < 256) { 310 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; 311 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); 312 } else 313 map_key(KEY_UNKNOWN); 314 315 break; 316 317 case HID_UP_BUTTON: 318 code = ((usage->hid - 1) & HID_USAGE); 319 320 switch (field->application) { 321 case HID_GD_MOUSE: 322 case HID_GD_POINTER: code += BTN_MOUSE; break; 323 case HID_GD_JOYSTICK: 324 if (code <= 0xf) 325 code += BTN_JOYSTICK; 326 else 327 code += BTN_TRIGGER_HAPPY; 328 break; 329 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break; 330 default: 331 switch (field->physical) { 332 case HID_GD_MOUSE: 333 case HID_GD_POINTER: code += BTN_MOUSE; break; 334 case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break; 335 case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break; 336 default: code += BTN_MISC; 337 } 338 } 339 340 map_key(code); 341 break; 342 343 case HID_UP_SIMULATION: 344 switch (usage->hid & 0xffff) { 345 case 0xba: map_abs(ABS_RUDDER); break; 346 case 0xbb: map_abs(ABS_THROTTLE); break; 347 case 0xc4: map_abs(ABS_GAS); break; 348 case 0xc5: map_abs(ABS_BRAKE); break; 349 case 0xc8: map_abs(ABS_WHEEL); break; 350 default: goto ignore; 351 } 352 break; 353 354 case HID_UP_GENDESK: 355 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ 356 switch (usage->hid & 0xf) { 357 case 0x1: map_key_clear(KEY_POWER); break; 358 case 0x2: map_key_clear(KEY_SLEEP); break; 359 case 0x3: map_key_clear(KEY_WAKEUP); break; 360 case 0x4: map_key_clear(KEY_CONTEXT_MENU); break; 361 case 0x5: map_key_clear(KEY_MENU); break; 362 case 0x6: map_key_clear(KEY_PROG1); break; 363 case 0x7: map_key_clear(KEY_HELP); break; 364 case 0x8: map_key_clear(KEY_EXIT); break; 365 case 0x9: map_key_clear(KEY_SELECT); break; 366 case 0xa: map_key_clear(KEY_RIGHT); break; 367 case 0xb: map_key_clear(KEY_LEFT); break; 368 case 0xc: map_key_clear(KEY_UP); break; 369 case 0xd: map_key_clear(KEY_DOWN); break; 370 case 0xe: map_key_clear(KEY_POWER2); break; 371 case 0xf: map_key_clear(KEY_RESTART); break; 372 default: goto unknown; 373 } 374 break; 375 } 376 377 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */ 378 switch (usage->hid) { 379 case HID_GD_UP: usage->hat_dir = 1; break; 380 case HID_GD_DOWN: usage->hat_dir = 5; break; 381 case HID_GD_RIGHT: usage->hat_dir = 3; break; 382 case HID_GD_LEFT: usage->hat_dir = 7; break; 383 default: goto unknown; 384 } 385 if (field->dpad) { 386 map_abs(field->dpad); 387 goto ignore; 388 } 389 map_abs(ABS_HAT0X); 390 break; 391 } 392 393 switch (usage->hid) { 394 /* These usage IDs map directly to the usage codes. */ 395 case HID_GD_X: case HID_GD_Y: case HID_GD_Z: 396 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: 397 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL: 398 if (field->flags & HID_MAIN_ITEM_RELATIVE) 399 map_rel(usage->hid & 0xf); 400 else 401 map_abs(usage->hid & 0xf); 402 break; 403 404 case HID_GD_HATSWITCH: 405 usage->hat_min = field->logical_minimum; 406 usage->hat_max = field->logical_maximum; 407 map_abs(ABS_HAT0X); 408 break; 409 410 case HID_GD_START: map_key_clear(BTN_START); break; 411 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; 412 413 default: goto unknown; 414 } 415 416 break; 417 418 case HID_UP_LED: 419 switch (usage->hid & 0xffff) { /* HID-Value: */ 420 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */ 421 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */ 422 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */ 423 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */ 424 case 0x05: map_led (LED_KANA); break; /* "Kana" */ 425 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */ 426 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */ 427 case 0x09: map_led (LED_MUTE); break; /* "Mute" */ 428 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */ 429 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */ 430 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */ 431 432 default: goto ignore; 433 } 434 break; 435 436 case HID_UP_DIGITIZER: 437 switch (usage->hid & 0xff) { 438 case 0x00: /* Undefined */ 439 goto ignore; 440 441 case 0x30: /* TipPressure */ 442 if (!test_bit(BTN_TOUCH, input->keybit)) { 443 device->quirks |= HID_QUIRK_NOTOUCH; 444 set_bit(EV_KEY, input->evbit); 445 set_bit(BTN_TOUCH, input->keybit); 446 } 447 map_abs_clear(ABS_PRESSURE); 448 break; 449 450 case 0x32: /* InRange */ 451 switch (field->physical & 0xff) { 452 case 0x21: map_key(BTN_TOOL_MOUSE); break; 453 case 0x22: map_key(BTN_TOOL_FINGER); break; 454 default: map_key(BTN_TOOL_PEN); break; 455 } 456 break; 457 458 case 0x3c: /* Invert */ 459 map_key_clear(BTN_TOOL_RUBBER); 460 break; 461 462 case 0x33: /* Touch */ 463 case 0x42: /* TipSwitch */ 464 case 0x43: /* TipSwitch2 */ 465 device->quirks &= ~HID_QUIRK_NOTOUCH; 466 map_key_clear(BTN_TOUCH); 467 break; 468 469 case 0x44: /* BarrelSwitch */ 470 map_key_clear(BTN_STYLUS); 471 break; 472 473 case 0x46: /* TabletPick */ 474 map_key_clear(BTN_STYLUS2); 475 break; 476 477 case 0x51: /* ContactID */ 478 device->quirks |= HID_QUIRK_MULTITOUCH; 479 goto unknown; 480 481 default: goto unknown; 482 } 483 break; 484 485 case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */ 486 switch (usage->hid & HID_USAGE) { 487 case 0x000: goto ignore; 488 case 0x030: map_key_clear(KEY_POWER); break; 489 case 0x031: map_key_clear(KEY_RESTART); break; 490 case 0x032: map_key_clear(KEY_SLEEP); break; 491 case 0x034: map_key_clear(KEY_SLEEP); break; 492 case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break; 493 case 0x036: map_key_clear(BTN_MISC); break; 494 495 case 0x040: map_key_clear(KEY_MENU); break; /* Menu */ 496 case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */ 497 case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */ 498 case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */ 499 case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */ 500 case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */ 501 case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */ 502 case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */ 503 case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */ 504 505 case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */ 506 case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */ 507 case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */ 508 case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */ 509 case 0x069: map_key_clear(KEY_RED); break; 510 case 0x06a: map_key_clear(KEY_GREEN); break; 511 case 0x06b: map_key_clear(KEY_BLUE); break; 512 case 0x06c: map_key_clear(KEY_YELLOW); break; 513 case 0x06d: map_key_clear(KEY_ZOOM); break; 514 515 case 0x082: map_key_clear(KEY_VIDEO_NEXT); break; 516 case 0x083: map_key_clear(KEY_LAST); break; 517 case 0x084: map_key_clear(KEY_ENTER); break; 518 case 0x088: map_key_clear(KEY_PC); break; 519 case 0x089: map_key_clear(KEY_TV); break; 520 case 0x08a: map_key_clear(KEY_WWW); break; 521 case 0x08b: map_key_clear(KEY_DVD); break; 522 case 0x08c: map_key_clear(KEY_PHONE); break; 523 case 0x08d: map_key_clear(KEY_PROGRAM); break; 524 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break; 525 case 0x08f: map_key_clear(KEY_GAMES); break; 526 case 0x090: map_key_clear(KEY_MEMO); break; 527 case 0x091: map_key_clear(KEY_CD); break; 528 case 0x092: map_key_clear(KEY_VCR); break; 529 case 0x093: map_key_clear(KEY_TUNER); break; 530 case 0x094: map_key_clear(KEY_EXIT); break; 531 case 0x095: map_key_clear(KEY_HELP); break; 532 case 0x096: map_key_clear(KEY_TAPE); break; 533 case 0x097: map_key_clear(KEY_TV2); break; 534 case 0x098: map_key_clear(KEY_SAT); break; 535 case 0x09a: map_key_clear(KEY_PVR); break; 536 537 case 0x09c: map_key_clear(KEY_CHANNELUP); break; 538 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break; 539 case 0x0a0: map_key_clear(KEY_VCR2); break; 540 541 case 0x0b0: map_key_clear(KEY_PLAY); break; 542 case 0x0b1: map_key_clear(KEY_PAUSE); break; 543 case 0x0b2: map_key_clear(KEY_RECORD); break; 544 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; 545 case 0x0b4: map_key_clear(KEY_REWIND); break; 546 case 0x0b5: map_key_clear(KEY_NEXTSONG); break; 547 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; 548 case 0x0b7: map_key_clear(KEY_STOPCD); break; 549 case 0x0b8: map_key_clear(KEY_EJECTCD); break; 550 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break; 551 case 0x0b9: map_key_clear(KEY_SHUFFLE); break; 552 case 0x0bf: map_key_clear(KEY_SLOW); break; 553 554 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; 555 case 0x0e0: map_abs_clear(ABS_VOLUME); break; 556 case 0x0e2: map_key_clear(KEY_MUTE); break; 557 case 0x0e5: map_key_clear(KEY_BASSBOOST); break; 558 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; 559 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; 560 case 0x0f5: map_key_clear(KEY_SLOW); break; 561 562 case 0x182: map_key_clear(KEY_BOOKMARKS); break; 563 case 0x183: map_key_clear(KEY_CONFIG); break; 564 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break; 565 case 0x185: map_key_clear(KEY_EDITOR); break; 566 case 0x186: map_key_clear(KEY_SPREADSHEET); break; 567 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break; 568 case 0x188: map_key_clear(KEY_PRESENTATION); break; 569 case 0x189: map_key_clear(KEY_DATABASE); break; 570 case 0x18a: map_key_clear(KEY_MAIL); break; 571 case 0x18b: map_key_clear(KEY_NEWS); break; 572 case 0x18c: map_key_clear(KEY_VOICEMAIL); break; 573 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break; 574 case 0x18e: map_key_clear(KEY_CALENDAR); break; 575 case 0x191: map_key_clear(KEY_FINANCE); break; 576 case 0x192: map_key_clear(KEY_CALC); break; 577 case 0x193: map_key_clear(KEY_PLAYER); break; 578 case 0x194: map_key_clear(KEY_FILE); break; 579 case 0x196: map_key_clear(KEY_WWW); break; 580 case 0x199: map_key_clear(KEY_CHAT); break; 581 case 0x19c: map_key_clear(KEY_LOGOFF); break; 582 case 0x19e: map_key_clear(KEY_COFFEE); break; 583 case 0x1a6: map_key_clear(KEY_HELP); break; 584 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break; 585 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break; 586 case 0x1ae: map_key_clear(KEY_KEYBOARD); break; 587 case 0x1b6: map_key_clear(KEY_IMAGES); break; 588 case 0x1b7: map_key_clear(KEY_AUDIO); break; 589 case 0x1b8: map_key_clear(KEY_VIDEO); break; 590 case 0x1bc: map_key_clear(KEY_MESSENGER); break; 591 case 0x1bd: map_key_clear(KEY_INFO); break; 592 case 0x201: map_key_clear(KEY_NEW); break; 593 case 0x202: map_key_clear(KEY_OPEN); break; 594 case 0x203: map_key_clear(KEY_CLOSE); break; 595 case 0x204: map_key_clear(KEY_EXIT); break; 596 case 0x207: map_key_clear(KEY_SAVE); break; 597 case 0x208: map_key_clear(KEY_PRINT); break; 598 case 0x209: map_key_clear(KEY_PROPS); break; 599 case 0x21a: map_key_clear(KEY_UNDO); break; 600 case 0x21b: map_key_clear(KEY_COPY); break; 601 case 0x21c: map_key_clear(KEY_CUT); break; 602 case 0x21d: map_key_clear(KEY_PASTE); break; 603 case 0x21f: map_key_clear(KEY_FIND); break; 604 case 0x221: map_key_clear(KEY_SEARCH); break; 605 case 0x222: map_key_clear(KEY_GOTO); break; 606 case 0x223: map_key_clear(KEY_HOMEPAGE); break; 607 case 0x224: map_key_clear(KEY_BACK); break; 608 case 0x225: map_key_clear(KEY_FORWARD); break; 609 case 0x226: map_key_clear(KEY_STOP); break; 610 case 0x227: map_key_clear(KEY_REFRESH); break; 611 case 0x22a: map_key_clear(KEY_BOOKMARKS); break; 612 case 0x22d: map_key_clear(KEY_ZOOMIN); break; 613 case 0x22e: map_key_clear(KEY_ZOOMOUT); break; 614 case 0x22f: map_key_clear(KEY_ZOOMRESET); break; 615 case 0x233: map_key_clear(KEY_SCROLLUP); break; 616 case 0x234: map_key_clear(KEY_SCROLLDOWN); break; 617 case 0x238: map_rel(REL_HWHEEL); break; 618 case 0x23d: map_key_clear(KEY_EDIT); break; 619 case 0x25f: map_key_clear(KEY_CANCEL); break; 620 case 0x269: map_key_clear(KEY_INSERT); break; 621 case 0x26a: map_key_clear(KEY_DELETE); break; 622 case 0x279: map_key_clear(KEY_REDO); break; 623 624 case 0x289: map_key_clear(KEY_REPLY); break; 625 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break; 626 case 0x28c: map_key_clear(KEY_SEND); break; 627 628 default: goto ignore; 629 } 630 break; 631 632 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ 633 set_bit(EV_REP, input->evbit); 634 switch (usage->hid & HID_USAGE) { 635 case 0x021: map_key_clear(KEY_PRINT); break; 636 case 0x070: map_key_clear(KEY_HP); break; 637 case 0x071: map_key_clear(KEY_CAMERA); break; 638 case 0x072: map_key_clear(KEY_SOUND); break; 639 case 0x073: map_key_clear(KEY_QUESTION); break; 640 case 0x080: map_key_clear(KEY_EMAIL); break; 641 case 0x081: map_key_clear(KEY_CHAT); break; 642 case 0x082: map_key_clear(KEY_SEARCH); break; 643 case 0x083: map_key_clear(KEY_CONNECT); break; 644 case 0x084: map_key_clear(KEY_FINANCE); break; 645 case 0x085: map_key_clear(KEY_SPORT); break; 646 case 0x086: map_key_clear(KEY_SHOP); break; 647 default: goto ignore; 648 } 649 break; 650 651 case HID_UP_MSVENDOR: 652 goto ignore; 653 654 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */ 655 set_bit(EV_REP, input->evbit); 656 goto ignore; 657 658 case HID_UP_LOGIVENDOR: 659 goto ignore; 660 661 case HID_UP_PID: 662 switch (usage->hid & HID_USAGE) { 663 case 0xa4: map_key_clear(BTN_DEAD); break; 664 default: goto ignore; 665 } 666 break; 667 668 default: 669 unknown: 670 if (field->report_size == 1) { 671 if (field->report->type == HID_OUTPUT_REPORT) { 672 map_led(LED_MISC); 673 break; 674 } 675 map_key(BTN_MISC); 676 break; 677 } 678 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 679 map_rel(REL_MISC); 680 break; 681 } 682 map_abs(ABS_MISC); 683 break; 684 } 685 686 mapped: 687 if (device->driver->input_mapped && device->driver->input_mapped(device, 688 hidinput, field, usage, &bit, &max) < 0) 689 goto ignore; 690 691 set_bit(usage->type, input->evbit); 692 693 while (usage->code <= max && test_and_set_bit(usage->code, bit)) 694 usage->code = find_next_zero_bit(bit, max + 1, usage->code); 695 696 if (usage->code > max) 697 goto ignore; 698 699 700 if (usage->type == EV_ABS) { 701 702 int a = field->logical_minimum; 703 int b = field->logical_maximum; 704 705 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { 706 a = field->logical_minimum = 0; 707 b = field->logical_maximum = 255; 708 } 709 710 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) 711 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); 712 else input_set_abs_params(input, usage->code, a, b, 0, 0); 713 714 input_abs_set_res(input, usage->code, 715 hidinput_calc_abs_res(field, usage->code)); 716 717 /* use a larger default input buffer for MT devices */ 718 if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0) 719 input_set_events_per_packet(input, 60); 720 } 721 722 if (usage->type == EV_ABS && 723 (usage->hat_min < usage->hat_max || usage->hat_dir)) { 724 int i; 725 for (i = usage->code; i < usage->code + 2 && i <= max; i++) { 726 input_set_abs_params(input, i, -1, 1, 0, 0); 727 set_bit(i, input->absbit); 728 } 729 if (usage->hat_dir && !field->dpad) 730 field->dpad = usage->code; 731 } 732 733 /* for those devices which produce Consumer volume usage as relative, 734 * we emulate pressing volumeup/volumedown appropriate number of times 735 * in hidinput_hid_event() 736 */ 737 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 738 (usage->code == ABS_VOLUME)) { 739 set_bit(KEY_VOLUMEUP, input->keybit); 740 set_bit(KEY_VOLUMEDOWN, input->keybit); 741 } 742 743 if (usage->type == EV_KEY) { 744 set_bit(EV_MSC, input->evbit); 745 set_bit(MSC_SCAN, input->mscbit); 746 } 747 748 ignore: 749 return; 750 751 } 752 753 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) 754 { 755 struct input_dev *input; 756 unsigned *quirks = &hid->quirks; 757 758 if (!field->hidinput) 759 return; 760 761 input = field->hidinput->input; 762 763 if (!usage->type) 764 return; 765 766 if (usage->hat_min < usage->hat_max || usage->hat_dir) { 767 int hat_dir = usage->hat_dir; 768 if (!hat_dir) 769 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; 770 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; 771 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); 772 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); 773 return; 774 } 775 776 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ 777 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); 778 return; 779 } 780 781 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ 782 if (value) { 783 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); 784 return; 785 } 786 input_event(input, usage->type, usage->code, 0); 787 input_event(input, usage->type, BTN_TOOL_RUBBER, 0); 788 return; 789 } 790 791 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ 792 int a = field->logical_minimum; 793 int b = field->logical_maximum; 794 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); 795 } 796 797 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ 798 dbg_hid("Maximum Effects - %d\n",value); 799 return; 800 } 801 802 if (usage->hid == (HID_UP_PID | 0x7fUL)) { 803 dbg_hid("PID Pool Report\n"); 804 return; 805 } 806 807 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ 808 return; 809 810 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 811 (usage->code == ABS_VOLUME)) { 812 int count = abs(value); 813 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; 814 int i; 815 816 for (i = 0; i < count; i++) { 817 input_event(input, EV_KEY, direction, 1); 818 input_sync(input); 819 input_event(input, EV_KEY, direction, 0); 820 input_sync(input); 821 } 822 return; 823 } 824 825 /* report the usage code as scancode if the key status has changed */ 826 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value) 827 input_event(input, EV_MSC, MSC_SCAN, usage->hid); 828 829 input_event(input, usage->type, usage->code, value); 830 831 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY)) 832 input_event(input, usage->type, usage->code, 0); 833 } 834 835 void hidinput_report_event(struct hid_device *hid, struct hid_report *report) 836 { 837 struct hid_input *hidinput; 838 839 if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC) 840 return; 841 842 list_for_each_entry(hidinput, &hid->inputs, list) 843 input_sync(hidinput->input); 844 } 845 EXPORT_SYMBOL_GPL(hidinput_report_event); 846 847 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field) 848 { 849 struct hid_report *report; 850 int i, j; 851 852 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { 853 for (i = 0; i < report->maxfield; i++) { 854 *field = report->field[i]; 855 for (j = 0; j < (*field)->maxusage; j++) 856 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) 857 return j; 858 } 859 } 860 return -1; 861 } 862 EXPORT_SYMBOL_GPL(hidinput_find_field); 863 864 static int hidinput_open(struct input_dev *dev) 865 { 866 struct hid_device *hid = input_get_drvdata(dev); 867 868 return hid_hw_open(hid); 869 } 870 871 static void hidinput_close(struct input_dev *dev) 872 { 873 struct hid_device *hid = input_get_drvdata(dev); 874 875 hid_hw_close(hid); 876 } 877 878 static void report_features(struct hid_device *hid) 879 { 880 struct hid_driver *drv = hid->driver; 881 struct hid_report_enum *rep_enum; 882 struct hid_report *rep; 883 int i, j; 884 885 if (!drv->feature_mapping) 886 return; 887 888 rep_enum = &hid->report_enum[HID_FEATURE_REPORT]; 889 list_for_each_entry(rep, &rep_enum->report_list, list) 890 for (i = 0; i < rep->maxfield; i++) 891 for (j = 0; j < rep->field[i]->maxusage; j++) 892 drv->feature_mapping(hid, rep->field[i], 893 rep->field[i]->usage + j); 894 } 895 896 /* 897 * Register the input device; print a message. 898 * Configure the input layer interface 899 * Read all reports and initialize the absolute field values. 900 */ 901 902 int hidinput_connect(struct hid_device *hid, unsigned int force) 903 { 904 struct hid_report *report; 905 struct hid_input *hidinput = NULL; 906 struct input_dev *input_dev; 907 int i, j, k; 908 909 INIT_LIST_HEAD(&hid->inputs); 910 911 if (!force) { 912 for (i = 0; i < hid->maxcollection; i++) { 913 struct hid_collection *col = &hid->collection[i]; 914 if (col->type == HID_COLLECTION_APPLICATION || 915 col->type == HID_COLLECTION_PHYSICAL) 916 if (IS_INPUT_APPLICATION(col->usage)) 917 break; 918 } 919 920 if (i == hid->maxcollection) 921 return -1; 922 } 923 924 report_features(hid); 925 926 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 927 if (k == HID_OUTPUT_REPORT && 928 hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS) 929 continue; 930 931 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 932 933 if (!report->maxfield) 934 continue; 935 936 if (!hidinput) { 937 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL); 938 input_dev = input_allocate_device(); 939 if (!hidinput || !input_dev) { 940 kfree(hidinput); 941 input_free_device(input_dev); 942 hid_err(hid, "Out of memory during hid input probe\n"); 943 goto out_unwind; 944 } 945 946 input_set_drvdata(input_dev, hid); 947 input_dev->event = 948 hid->ll_driver->hidinput_input_event; 949 input_dev->open = hidinput_open; 950 input_dev->close = hidinput_close; 951 input_dev->setkeycode = hidinput_setkeycode; 952 input_dev->getkeycode = hidinput_getkeycode; 953 954 input_dev->name = hid->name; 955 input_dev->phys = hid->phys; 956 input_dev->uniq = hid->uniq; 957 input_dev->id.bustype = hid->bus; 958 input_dev->id.vendor = hid->vendor; 959 input_dev->id.product = hid->product; 960 input_dev->id.version = hid->version; 961 input_dev->dev.parent = hid->dev.parent; 962 hidinput->input = input_dev; 963 list_add_tail(&hidinput->list, &hid->inputs); 964 } 965 966 for (i = 0; i < report->maxfield; i++) 967 for (j = 0; j < report->field[i]->maxusage; j++) 968 hidinput_configure_usage(hidinput, report->field[i], 969 report->field[i]->usage + j); 970 971 if (hid->quirks & HID_QUIRK_MULTI_INPUT) { 972 /* This will leave hidinput NULL, so that it 973 * allocates another one if we have more inputs on 974 * the same interface. Some devices (e.g. Happ's 975 * UGCI) cram a lot of unrelated inputs into the 976 * same interface. */ 977 hidinput->report = report; 978 if (input_register_device(hidinput->input)) 979 goto out_cleanup; 980 hidinput = NULL; 981 } 982 } 983 } 984 985 if (hid->quirks & HID_QUIRK_MULTITOUCH) { 986 /* generic hid does not know how to handle multitouch devices */ 987 if (hidinput) 988 goto out_cleanup; 989 goto out_unwind; 990 } 991 992 if (hidinput && input_register_device(hidinput->input)) 993 goto out_cleanup; 994 995 return 0; 996 997 out_cleanup: 998 list_del(&hidinput->list); 999 input_free_device(hidinput->input); 1000 kfree(hidinput); 1001 out_unwind: 1002 /* unwind the ones we already registered */ 1003 hidinput_disconnect(hid); 1004 1005 return -1; 1006 } 1007 EXPORT_SYMBOL_GPL(hidinput_connect); 1008 1009 void hidinput_disconnect(struct hid_device *hid) 1010 { 1011 struct hid_input *hidinput, *next; 1012 1013 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { 1014 list_del(&hidinput->list); 1015 input_unregister_device(hidinput->input); 1016 kfree(hidinput); 1017 } 1018 } 1019 EXPORT_SYMBOL_GPL(hidinput_disconnect); 1020 1021