1 /* 2 * Copyright (c) 2000-2001 Vojtech Pavlik 3 * Copyright (c) 2006-2007 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 inline int match_scancode(int code, int scancode) 72 { 73 if (scancode == 0) 74 return 1; 75 return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode); 76 } 77 78 static inline int match_keycode(int code, int keycode) 79 { 80 if (keycode == 0) 81 return 1; 82 return (code == keycode); 83 } 84 85 static struct hid_usage *hidinput_find_key(struct hid_device *hid, 86 int scancode, int keycode) 87 { 88 int i, j, k; 89 struct hid_report *report; 90 struct hid_usage *usage; 91 92 for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { 93 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 94 for (i = 0; i < report->maxfield; i++) { 95 for ( j = 0; j < report->field[i]->maxusage; j++) { 96 usage = report->field[i]->usage + j; 97 if (usage->type == EV_KEY && 98 match_scancode(usage->hid, scancode) && 99 match_keycode(usage->code, keycode)) 100 return usage; 101 } 102 } 103 } 104 } 105 return NULL; 106 } 107 108 static int hidinput_getkeycode(struct input_dev *dev, int scancode, 109 int *keycode) 110 { 111 struct hid_device *hid = input_get_drvdata(dev); 112 struct hid_usage *usage; 113 114 usage = hidinput_find_key(hid, scancode, 0); 115 if (usage) { 116 *keycode = usage->code; 117 return 0; 118 } 119 return -EINVAL; 120 } 121 122 static int hidinput_setkeycode(struct input_dev *dev, int scancode, 123 int keycode) 124 { 125 struct hid_device *hid = input_get_drvdata(dev); 126 struct hid_usage *usage; 127 int old_keycode; 128 129 if (keycode < 0 || keycode > KEY_MAX) 130 return -EINVAL; 131 132 usage = hidinput_find_key(hid, scancode, 0); 133 if (usage) { 134 old_keycode = usage->code; 135 usage->code = keycode; 136 137 clear_bit(old_keycode, dev->keybit); 138 set_bit(usage->code, dev->keybit); 139 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode); 140 /* Set the keybit for the old keycode if the old keycode is used 141 * by another key */ 142 if (hidinput_find_key (hid, 0, old_keycode)) 143 set_bit(old_keycode, dev->keybit); 144 145 return 0; 146 } 147 148 return -EINVAL; 149 } 150 151 152 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, 153 struct hid_usage *usage) 154 { 155 struct input_dev *input = hidinput->input; 156 struct hid_device *device = input_get_drvdata(input); 157 int max = 0, code; 158 unsigned long *bit = NULL; 159 160 field->hidinput = hidinput; 161 162 dbg_hid("Mapping: "); 163 hid_resolv_usage(usage->hid); 164 dbg_hid_line(" ---> "); 165 166 if (field->flags & HID_MAIN_ITEM_CONSTANT) 167 goto ignore; 168 169 /* only LED usages are supported in output fields */ 170 if (field->report_type == HID_OUTPUT_REPORT && 171 (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) { 172 dbg_hid_line(" [non-LED output field] "); 173 goto ignore; 174 } 175 176 if (device->driver->input_mapping) { 177 int ret = device->driver->input_mapping(device, hidinput, field, 178 usage, &bit, &max); 179 if (ret > 0) 180 goto mapped; 181 if (ret < 0) 182 goto ignore; 183 } 184 185 switch (usage->hid & HID_USAGE_PAGE) { 186 case HID_UP_UNDEFINED: 187 goto ignore; 188 189 case HID_UP_KEYBOARD: 190 set_bit(EV_REP, input->evbit); 191 192 if ((usage->hid & HID_USAGE) < 256) { 193 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; 194 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); 195 } else 196 map_key(KEY_UNKNOWN); 197 198 break; 199 200 case HID_UP_BUTTON: 201 code = ((usage->hid - 1) & 0xf); 202 203 switch (field->application) { 204 case HID_GD_MOUSE: 205 case HID_GD_POINTER: code += 0x110; break; 206 case HID_GD_JOYSTICK: code += 0x120; break; 207 case HID_GD_GAMEPAD: code += 0x130; break; 208 default: 209 switch (field->physical) { 210 case HID_GD_MOUSE: 211 case HID_GD_POINTER: code += 0x110; break; 212 case HID_GD_JOYSTICK: code += 0x120; break; 213 case HID_GD_GAMEPAD: code += 0x130; break; 214 default: code += 0x100; 215 } 216 } 217 218 map_key(code); 219 break; 220 221 case HID_UP_SIMULATION: 222 switch (usage->hid & 0xffff) { 223 case 0xba: map_abs(ABS_RUDDER); break; 224 case 0xbb: map_abs(ABS_THROTTLE); break; 225 case 0xc4: map_abs(ABS_GAS); break; 226 case 0xc5: map_abs(ABS_BRAKE); break; 227 case 0xc8: map_abs(ABS_WHEEL); break; 228 default: goto ignore; 229 } 230 break; 231 232 case HID_UP_GENDESK: 233 if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ 234 switch (usage->hid & 0xf) { 235 case 0x1: map_key_clear(KEY_POWER); break; 236 case 0x2: map_key_clear(KEY_SLEEP); break; 237 case 0x3: map_key_clear(KEY_WAKEUP); break; 238 default: goto unknown; 239 } 240 break; 241 } 242 243 if ((usage->hid & 0xf0) == 0x90) { /* D-pad */ 244 switch (usage->hid) { 245 case HID_GD_UP: usage->hat_dir = 1; break; 246 case HID_GD_DOWN: usage->hat_dir = 5; break; 247 case HID_GD_RIGHT: usage->hat_dir = 3; break; 248 case HID_GD_LEFT: usage->hat_dir = 7; break; 249 default: goto unknown; 250 } 251 if (field->dpad) { 252 map_abs(field->dpad); 253 goto ignore; 254 } 255 map_abs(ABS_HAT0X); 256 break; 257 } 258 259 switch (usage->hid) { 260 /* These usage IDs map directly to the usage codes. */ 261 case HID_GD_X: case HID_GD_Y: case HID_GD_Z: 262 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: 263 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL: 264 if (field->flags & HID_MAIN_ITEM_RELATIVE) 265 map_rel(usage->hid & 0xf); 266 else 267 map_abs(usage->hid & 0xf); 268 break; 269 270 case HID_GD_HATSWITCH: 271 usage->hat_min = field->logical_minimum; 272 usage->hat_max = field->logical_maximum; 273 map_abs(ABS_HAT0X); 274 break; 275 276 case HID_GD_START: map_key_clear(BTN_START); break; 277 case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; 278 279 default: goto unknown; 280 } 281 282 break; 283 284 case HID_UP_LED: 285 switch (usage->hid & 0xffff) { /* HID-Value: */ 286 case 0x01: map_led (LED_NUML); break; /* "Num Lock" */ 287 case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */ 288 case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */ 289 case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */ 290 case 0x05: map_led (LED_KANA); break; /* "Kana" */ 291 case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */ 292 case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */ 293 case 0x09: map_led (LED_MUTE); break; /* "Mute" */ 294 case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */ 295 case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */ 296 case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */ 297 298 default: goto ignore; 299 } 300 break; 301 302 case HID_UP_DIGITIZER: 303 switch (usage->hid & 0xff) { 304 case 0x30: /* TipPressure */ 305 if (!test_bit(BTN_TOUCH, input->keybit)) { 306 device->quirks |= HID_QUIRK_NOTOUCH; 307 set_bit(EV_KEY, input->evbit); 308 set_bit(BTN_TOUCH, input->keybit); 309 } 310 map_abs_clear(ABS_PRESSURE); 311 break; 312 313 case 0x32: /* InRange */ 314 switch (field->physical & 0xff) { 315 case 0x21: map_key(BTN_TOOL_MOUSE); break; 316 case 0x22: map_key(BTN_TOOL_FINGER); break; 317 default: map_key(BTN_TOOL_PEN); break; 318 } 319 break; 320 321 case 0x3c: /* Invert */ 322 map_key_clear(BTN_TOOL_RUBBER); 323 break; 324 325 case 0x33: /* Touch */ 326 case 0x42: /* TipSwitch */ 327 case 0x43: /* TipSwitch2 */ 328 device->quirks &= ~HID_QUIRK_NOTOUCH; 329 map_key_clear(BTN_TOUCH); 330 break; 331 332 case 0x44: /* BarrelSwitch */ 333 map_key_clear(BTN_STYLUS); 334 break; 335 336 default: goto unknown; 337 } 338 break; 339 340 case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */ 341 switch (usage->hid & HID_USAGE) { 342 case 0x000: goto ignore; 343 case 0x034: map_key_clear(KEY_SLEEP); break; 344 case 0x036: map_key_clear(BTN_MISC); break; 345 346 case 0x040: map_key_clear(KEY_MENU); break; 347 case 0x045: map_key_clear(KEY_RADIO); break; 348 349 case 0x083: map_key_clear(KEY_LAST); break; 350 case 0x088: map_key_clear(KEY_PC); break; 351 case 0x089: map_key_clear(KEY_TV); break; 352 case 0x08a: map_key_clear(KEY_WWW); break; 353 case 0x08b: map_key_clear(KEY_DVD); break; 354 case 0x08c: map_key_clear(KEY_PHONE); break; 355 case 0x08d: map_key_clear(KEY_PROGRAM); break; 356 case 0x08e: map_key_clear(KEY_VIDEOPHONE); break; 357 case 0x08f: map_key_clear(KEY_GAMES); break; 358 case 0x090: map_key_clear(KEY_MEMO); break; 359 case 0x091: map_key_clear(KEY_CD); break; 360 case 0x092: map_key_clear(KEY_VCR); break; 361 case 0x093: map_key_clear(KEY_TUNER); break; 362 case 0x094: map_key_clear(KEY_EXIT); break; 363 case 0x095: map_key_clear(KEY_HELP); break; 364 case 0x096: map_key_clear(KEY_TAPE); break; 365 case 0x097: map_key_clear(KEY_TV2); break; 366 case 0x098: map_key_clear(KEY_SAT); break; 367 case 0x09a: map_key_clear(KEY_PVR); break; 368 369 case 0x09c: map_key_clear(KEY_CHANNELUP); break; 370 case 0x09d: map_key_clear(KEY_CHANNELDOWN); break; 371 case 0x0a0: map_key_clear(KEY_VCR2); break; 372 373 case 0x0b0: map_key_clear(KEY_PLAY); break; 374 case 0x0b1: map_key_clear(KEY_PAUSE); break; 375 case 0x0b2: map_key_clear(KEY_RECORD); break; 376 case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; 377 case 0x0b4: map_key_clear(KEY_REWIND); break; 378 case 0x0b5: map_key_clear(KEY_NEXTSONG); break; 379 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; 380 case 0x0b7: map_key_clear(KEY_STOPCD); break; 381 case 0x0b8: map_key_clear(KEY_EJECTCD); break; 382 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break; 383 384 case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; 385 case 0x0e0: map_abs_clear(ABS_VOLUME); break; 386 case 0x0e2: map_key_clear(KEY_MUTE); break; 387 case 0x0e5: map_key_clear(KEY_BASSBOOST); break; 388 case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; 389 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; 390 391 case 0x182: map_key_clear(KEY_BOOKMARKS); break; 392 case 0x183: map_key_clear(KEY_CONFIG); break; 393 case 0x184: map_key_clear(KEY_WORDPROCESSOR); break; 394 case 0x185: map_key_clear(KEY_EDITOR); break; 395 case 0x186: map_key_clear(KEY_SPREADSHEET); break; 396 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break; 397 case 0x188: map_key_clear(KEY_PRESENTATION); break; 398 case 0x189: map_key_clear(KEY_DATABASE); break; 399 case 0x18a: map_key_clear(KEY_MAIL); break; 400 case 0x18b: map_key_clear(KEY_NEWS); break; 401 case 0x18c: map_key_clear(KEY_VOICEMAIL); break; 402 case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break; 403 case 0x18e: map_key_clear(KEY_CALENDAR); break; 404 case 0x191: map_key_clear(KEY_FINANCE); break; 405 case 0x192: map_key_clear(KEY_CALC); break; 406 case 0x194: map_key_clear(KEY_FILE); break; 407 case 0x196: map_key_clear(KEY_WWW); break; 408 case 0x19c: map_key_clear(KEY_LOGOFF); break; 409 case 0x19e: map_key_clear(KEY_COFFEE); break; 410 case 0x1a6: map_key_clear(KEY_HELP); break; 411 case 0x1a7: map_key_clear(KEY_DOCUMENTS); break; 412 case 0x1ab: map_key_clear(KEY_SPELLCHECK); break; 413 case 0x1b6: map_key_clear(KEY_MEDIA); break; 414 case 0x1b7: map_key_clear(KEY_SOUND); break; 415 case 0x1bc: map_key_clear(KEY_MESSENGER); break; 416 case 0x1bd: map_key_clear(KEY_INFO); break; 417 case 0x201: map_key_clear(KEY_NEW); break; 418 case 0x202: map_key_clear(KEY_OPEN); break; 419 case 0x203: map_key_clear(KEY_CLOSE); break; 420 case 0x204: map_key_clear(KEY_EXIT); break; 421 case 0x207: map_key_clear(KEY_SAVE); break; 422 case 0x208: map_key_clear(KEY_PRINT); break; 423 case 0x209: map_key_clear(KEY_PROPS); break; 424 case 0x21a: map_key_clear(KEY_UNDO); break; 425 case 0x21b: map_key_clear(KEY_COPY); break; 426 case 0x21c: map_key_clear(KEY_CUT); break; 427 case 0x21d: map_key_clear(KEY_PASTE); break; 428 case 0x21f: map_key_clear(KEY_FIND); break; 429 case 0x221: map_key_clear(KEY_SEARCH); break; 430 case 0x222: map_key_clear(KEY_GOTO); break; 431 case 0x223: map_key_clear(KEY_HOMEPAGE); break; 432 case 0x224: map_key_clear(KEY_BACK); break; 433 case 0x225: map_key_clear(KEY_FORWARD); break; 434 case 0x226: map_key_clear(KEY_STOP); break; 435 case 0x227: map_key_clear(KEY_REFRESH); break; 436 case 0x22a: map_key_clear(KEY_BOOKMARKS); break; 437 case 0x22d: map_key_clear(KEY_ZOOMIN); break; 438 case 0x22e: map_key_clear(KEY_ZOOMOUT); break; 439 case 0x22f: map_key_clear(KEY_ZOOMRESET); break; 440 case 0x233: map_key_clear(KEY_SCROLLUP); break; 441 case 0x234: map_key_clear(KEY_SCROLLDOWN); break; 442 case 0x238: map_rel(REL_HWHEEL); break; 443 case 0x25f: map_key_clear(KEY_CANCEL); break; 444 case 0x279: map_key_clear(KEY_REDO); break; 445 446 case 0x289: map_key_clear(KEY_REPLY); break; 447 case 0x28b: map_key_clear(KEY_FORWARDMAIL); break; 448 case 0x28c: map_key_clear(KEY_SEND); break; 449 450 default: goto ignore; 451 } 452 break; 453 454 case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ 455 set_bit(EV_REP, input->evbit); 456 switch (usage->hid & HID_USAGE) { 457 case 0x021: map_key_clear(KEY_PRINT); break; 458 case 0x070: map_key_clear(KEY_HP); break; 459 case 0x071: map_key_clear(KEY_CAMERA); break; 460 case 0x072: map_key_clear(KEY_SOUND); break; 461 case 0x073: map_key_clear(KEY_QUESTION); break; 462 case 0x080: map_key_clear(KEY_EMAIL); break; 463 case 0x081: map_key_clear(KEY_CHAT); break; 464 case 0x082: map_key_clear(KEY_SEARCH); break; 465 case 0x083: map_key_clear(KEY_CONNECT); break; 466 case 0x084: map_key_clear(KEY_FINANCE); break; 467 case 0x085: map_key_clear(KEY_SPORT); break; 468 case 0x086: map_key_clear(KEY_SHOP); break; 469 default: goto ignore; 470 } 471 break; 472 473 case HID_UP_MSVENDOR: 474 goto ignore; 475 476 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */ 477 set_bit(EV_REP, input->evbit); 478 goto ignore; 479 480 case HID_UP_LOGIVENDOR: 481 goto ignore; 482 483 case HID_UP_PID: 484 switch (usage->hid & HID_USAGE) { 485 case 0xa4: map_key_clear(BTN_DEAD); break; 486 default: goto ignore; 487 } 488 break; 489 490 default: 491 unknown: 492 if (field->report_size == 1) { 493 if (field->report->type == HID_OUTPUT_REPORT) { 494 map_led(LED_MISC); 495 break; 496 } 497 map_key(BTN_MISC); 498 break; 499 } 500 if (field->flags & HID_MAIN_ITEM_RELATIVE) { 501 map_rel(REL_MISC); 502 break; 503 } 504 map_abs(ABS_MISC); 505 break; 506 } 507 508 mapped: 509 if (device->driver->input_mapped && device->driver->input_mapped(device, 510 hidinput, field, usage, &bit, &max) < 0) 511 goto ignore; 512 513 set_bit(usage->type, input->evbit); 514 515 while (usage->code <= max && test_and_set_bit(usage->code, bit)) 516 usage->code = find_next_zero_bit(bit, max + 1, usage->code); 517 518 if (usage->code > max) 519 goto ignore; 520 521 522 if (usage->type == EV_ABS) { 523 524 int a = field->logical_minimum; 525 int b = field->logical_maximum; 526 527 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { 528 a = field->logical_minimum = 0; 529 b = field->logical_maximum = 255; 530 } 531 532 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) 533 input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); 534 else input_set_abs_params(input, usage->code, a, b, 0, 0); 535 536 } 537 538 if (usage->type == EV_ABS && 539 (usage->hat_min < usage->hat_max || usage->hat_dir)) { 540 int i; 541 for (i = usage->code; i < usage->code + 2 && i <= max; i++) { 542 input_set_abs_params(input, i, -1, 1, 0, 0); 543 set_bit(i, input->absbit); 544 } 545 if (usage->hat_dir && !field->dpad) 546 field->dpad = usage->code; 547 } 548 549 /* for those devices which produce Consumer volume usage as relative, 550 * we emulate pressing volumeup/volumedown appropriate number of times 551 * in hidinput_hid_event() 552 */ 553 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 554 (usage->code == ABS_VOLUME)) { 555 set_bit(KEY_VOLUMEUP, input->keybit); 556 set_bit(KEY_VOLUMEDOWN, input->keybit); 557 } 558 559 if (usage->type == EV_KEY) { 560 set_bit(EV_MSC, input->evbit); 561 set_bit(MSC_SCAN, input->mscbit); 562 } 563 564 hid_resolv_event(usage->type, usage->code); 565 566 dbg_hid_line("\n"); 567 568 return; 569 570 ignore: 571 dbg_hid_line("IGNORED\n"); 572 return; 573 } 574 575 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) 576 { 577 struct input_dev *input; 578 unsigned *quirks = &hid->quirks; 579 580 if (!field->hidinput) 581 return; 582 583 input = field->hidinput->input; 584 585 if (!usage->type) 586 return; 587 588 if (usage->hat_min < usage->hat_max || usage->hat_dir) { 589 int hat_dir = usage->hat_dir; 590 if (!hat_dir) 591 hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; 592 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; 593 input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); 594 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); 595 return; 596 } 597 598 if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ 599 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); 600 return; 601 } 602 603 if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ 604 if (value) { 605 input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); 606 return; 607 } 608 input_event(input, usage->type, usage->code, 0); 609 input_event(input, usage->type, BTN_TOOL_RUBBER, 0); 610 return; 611 } 612 613 if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ 614 int a = field->logical_minimum; 615 int b = field->logical_maximum; 616 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); 617 } 618 619 if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ 620 dbg_hid("Maximum Effects - %d\n",value); 621 return; 622 } 623 624 if (usage->hid == (HID_UP_PID | 0x7fUL)) { 625 dbg_hid("PID Pool Report\n"); 626 return; 627 } 628 629 if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ 630 return; 631 632 if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) && 633 (usage->code == ABS_VOLUME)) { 634 int count = abs(value); 635 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN; 636 int i; 637 638 for (i = 0; i < count; i++) { 639 input_event(input, EV_KEY, direction, 1); 640 input_sync(input); 641 input_event(input, EV_KEY, direction, 0); 642 input_sync(input); 643 } 644 return; 645 } 646 647 /* report the usage code as scancode if the key status has changed */ 648 if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value) 649 input_event(input, EV_MSC, MSC_SCAN, usage->hid); 650 651 input_event(input, usage->type, usage->code, value); 652 653 if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY)) 654 input_event(input, usage->type, usage->code, 0); 655 } 656 657 void hidinput_report_event(struct hid_device *hid, struct hid_report *report) 658 { 659 struct hid_input *hidinput; 660 661 list_for_each_entry(hidinput, &hid->inputs, list) 662 input_sync(hidinput->input); 663 } 664 EXPORT_SYMBOL_GPL(hidinput_report_event); 665 666 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field) 667 { 668 struct hid_report *report; 669 int i, j; 670 671 list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { 672 for (i = 0; i < report->maxfield; i++) { 673 *field = report->field[i]; 674 for (j = 0; j < (*field)->maxusage; j++) 675 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) 676 return j; 677 } 678 } 679 return -1; 680 } 681 EXPORT_SYMBOL_GPL(hidinput_find_field); 682 683 static int hidinput_open(struct input_dev *dev) 684 { 685 struct hid_device *hid = input_get_drvdata(dev); 686 687 return hid->ll_driver->open(hid); 688 } 689 690 static void hidinput_close(struct input_dev *dev) 691 { 692 struct hid_device *hid = input_get_drvdata(dev); 693 694 hid->ll_driver->close(hid); 695 } 696 697 /* 698 * Register the input device; print a message. 699 * Configure the input layer interface 700 * Read all reports and initialize the absolute field values. 701 */ 702 703 int hidinput_connect(struct hid_device *hid, unsigned int force) 704 { 705 struct hid_report *report; 706 struct hid_input *hidinput = NULL; 707 struct input_dev *input_dev; 708 int i, j, k; 709 int max_report_type = HID_OUTPUT_REPORT; 710 711 INIT_LIST_HEAD(&hid->inputs); 712 713 if (!force) { 714 for (i = 0; i < hid->maxcollection; i++) { 715 struct hid_collection *col = &hid->collection[i]; 716 if (col->type == HID_COLLECTION_APPLICATION || 717 col->type == HID_COLLECTION_PHYSICAL) 718 if (IS_INPUT_APPLICATION(col->usage)) 719 break; 720 } 721 722 if (i == hid->maxcollection) 723 return -1; 724 } 725 726 if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS) 727 max_report_type = HID_INPUT_REPORT; 728 729 for (k = HID_INPUT_REPORT; k <= max_report_type; k++) 730 list_for_each_entry(report, &hid->report_enum[k].report_list, list) { 731 732 if (!report->maxfield) 733 continue; 734 735 if (!hidinput) { 736 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL); 737 input_dev = input_allocate_device(); 738 if (!hidinput || !input_dev) { 739 kfree(hidinput); 740 input_free_device(input_dev); 741 err_hid("Out of memory during hid input probe"); 742 goto out_unwind; 743 } 744 745 input_set_drvdata(input_dev, hid); 746 input_dev->event = 747 hid->ll_driver->hidinput_input_event; 748 input_dev->open = hidinput_open; 749 input_dev->close = hidinput_close; 750 input_dev->setkeycode = hidinput_setkeycode; 751 input_dev->getkeycode = hidinput_getkeycode; 752 753 input_dev->name = hid->name; 754 input_dev->phys = hid->phys; 755 input_dev->uniq = hid->uniq; 756 input_dev->id.bustype = hid->bus; 757 input_dev->id.vendor = hid->vendor; 758 input_dev->id.product = hid->product; 759 input_dev->id.version = hid->version; 760 input_dev->dev.parent = hid->dev.parent; 761 hidinput->input = input_dev; 762 list_add_tail(&hidinput->list, &hid->inputs); 763 } 764 765 for (i = 0; i < report->maxfield; i++) 766 for (j = 0; j < report->field[i]->maxusage; j++) 767 hidinput_configure_usage(hidinput, report->field[i], 768 report->field[i]->usage + j); 769 770 if (hid->quirks & HID_QUIRK_MULTI_INPUT) { 771 /* This will leave hidinput NULL, so that it 772 * allocates another one if we have more inputs on 773 * the same interface. Some devices (e.g. Happ's 774 * UGCI) cram a lot of unrelated inputs into the 775 * same interface. */ 776 hidinput->report = report; 777 if (input_register_device(hidinput->input)) 778 goto out_cleanup; 779 hidinput = NULL; 780 } 781 } 782 783 if (hidinput && input_register_device(hidinput->input)) 784 goto out_cleanup; 785 786 return 0; 787 788 out_cleanup: 789 input_free_device(hidinput->input); 790 kfree(hidinput); 791 out_unwind: 792 /* unwind the ones we already registered */ 793 hidinput_disconnect(hid); 794 795 return -1; 796 } 797 EXPORT_SYMBOL_GPL(hidinput_connect); 798 799 void hidinput_disconnect(struct hid_device *hid) 800 { 801 struct hid_input *hidinput, *next; 802 803 list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { 804 list_del(&hidinput->list); 805 input_unregister_device(hidinput->input); 806 kfree(hidinput); 807 } 808 } 809 EXPORT_SYMBOL_GPL(hidinput_disconnect); 810 811