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