drivers/hid/hid-input.c

   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, ret;
 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         /* handle input mappings for quirky devices */
 177         ret = hidinput_mapping_quirks(usage, hidinput, &bit, &max);
 178         if (ret)
 179                 goto mapped;
 180
 181         if (device->driver->input_mapping) {
 182                 int ret = device->driver->input_mapping(device, hidinput, field,
 183                                 usage, &bit, &max);
 184                 if (ret > 0)
 185                         goto mapped;
 186                 if (ret < 0)
 187                         goto ignore;
 188         }
 189
 190         switch (usage->hid & HID_USAGE_PAGE) {
 191
 192                 case HID_UP_UNDEFINED:
 193                         goto ignore;
 194
 195                 case HID_UP_KEYBOARD:
 196
 197                         set_bit(EV_REP, input->evbit);
 198
 199                         if ((usage->hid & HID_USAGE) < 256) {
 200                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 201                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 202                         } else
 203                                 map_key(KEY_UNKNOWN);
 204
 205                         break;
 206
 207                 case HID_UP_BUTTON:
 208
 209                         code = ((usage->hid - 1) & 0xf);
 210
 211                         switch (field->application) {
 212                                 case HID_GD_MOUSE:
 213                                 case HID_GD_POINTER:  code += 0x110; break;
 214                                 case HID_GD_JOYSTICK: code += 0x120; break;
 215                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 216                                 default:
 217                                         switch (field->physical) {
 218                                                 case HID_GD_MOUSE:
 219                                                 case HID_GD_POINTER:  code += 0x110; break;
 220                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 221                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 222                                                 default:              code += 0x100;
 223                                         }
 224                         }
 225
 226                         map_key(code);
 227                         break;
 228
 229
 230                 case HID_UP_SIMULATION:
 231
 232                         switch (usage->hid & 0xffff) {
 233                                 case 0xba: map_abs(ABS_RUDDER);   break;
 234                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 235                                 case 0xc4: map_abs(ABS_GAS);      break;
 236                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 237                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 238                                 default:   goto ignore;
 239                         }
 240                         break;
 241
 242                 case HID_UP_GENDESK:
 243
 244                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 245                                 switch (usage->hid & 0xf) {
 246                                         case 0x1: map_key_clear(KEY_POWER);  break;
 247                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 248                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 249                                         default: goto unknown;
 250                                 }
 251                                 break;
 252                         }
 253
 254                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 255                                 switch (usage->hid) {
 256                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 257                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 258                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 259                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 260                                         default: goto unknown;
 261                                 }
 262                                 if (field->dpad) {
 263                                         map_abs(field->dpad);
 264                                         goto ignore;
 265                                 }
 266                                 map_abs(ABS_HAT0X);
 267                                 break;
 268                         }
 269
 270                         switch (usage->hid) {
 271
 272                                 /* These usage IDs map directly to the usage codes. */
 273                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 274                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 275                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 276                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 277                                                 map_rel(usage->hid & 0xf);
 278                                         else
 279                                                 map_abs(usage->hid & 0xf);
 280                                         break;
 281
 282                                 case HID_GD_HATSWITCH:
 283                                         usage->hat_min = field->logical_minimum;
 284                                         usage->hat_max = field->logical_maximum;
 285                                         map_abs(ABS_HAT0X);
 286                                         break;
 287
 288                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 289                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 290
 291                                 default: goto unknown;
 292                         }
 293
 294                         break;
 295
 296                 case HID_UP_LED:
 297
 298                         switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
 299                                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
 300                                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
 301                                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
 302                                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
 303                                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
 304                                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
 305                                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
 306                                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
 307                                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
 308                                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
 309                                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
 310
 311                                 default: goto ignore;
 312                         }
 313                         break;
 314
 315                 case HID_UP_DIGITIZER:
 316
 317                         switch (usage->hid & 0xff) {
 318
 319                                 case 0x30: /* TipPressure */
 320                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 321                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 322                                                 set_bit(EV_KEY, input->evbit);
 323                                                 set_bit(BTN_TOUCH, input->keybit);
 324                                         }
 325
 326                                         map_abs_clear(ABS_PRESSURE);
 327                                         break;
 328
 329                                 case 0x32: /* InRange */
 330                                         switch (field->physical & 0xff) {
 331                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 332                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 333                                                 default: map_key(BTN_TOOL_PEN); break;
 334                                         }
 335                                         break;
 336
 337                                 case 0x3c: /* Invert */
 338                                         map_key_clear(BTN_TOOL_RUBBER);
 339                                         break;
 340
 341                                 case 0x33: /* Touch */
 342                                 case 0x42: /* TipSwitch */
 343                                 case 0x43: /* TipSwitch2 */
 344                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 345                                         map_key_clear(BTN_TOUCH);
 346                                         break;
 347
 348                                 case 0x44: /* BarrelSwitch */
 349                                         map_key_clear(BTN_STYLUS);
 350                                         break;
 351
 352                                 default:  goto unknown;
 353                         }
 354                         break;
 355
 356                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 357
 358                         switch (usage->hid & HID_USAGE) {
 359                                 case 0x000: goto ignore;
 360                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 361                                 case 0x036: map_key_clear(BTN_MISC);            break;
 362
 363                                 case 0x040: map_key_clear(KEY_MENU);            break;
 364                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 365
 366                                 case 0x083: map_key_clear(KEY_LAST);            break;
 367                                 case 0x088: map_key_clear(KEY_PC);              break;
 368                                 case 0x089: map_key_clear(KEY_TV);              break;
 369                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 370                                 case 0x08b: map_key_clear(KEY_DVD);             break;
 371                                 case 0x08c: map_key_clear(KEY_PHONE);           break;
 372                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 373                                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
 374                                 case 0x08f: map_key_clear(KEY_GAMES);           break;
 375                                 case 0x090: map_key_clear(KEY_MEMO);            break;
 376                                 case 0x091: map_key_clear(KEY_CD);              break;
 377                                 case 0x092: map_key_clear(KEY_VCR);             break;
 378                                 case 0x093: map_key_clear(KEY_TUNER);           break;
 379                                 case 0x094: map_key_clear(KEY_EXIT);            break;
 380                                 case 0x095: map_key_clear(KEY_HELP);            break;
 381                                 case 0x096: map_key_clear(KEY_TAPE);            break;
 382                                 case 0x097: map_key_clear(KEY_TV2);             break;
 383                                 case 0x098: map_key_clear(KEY_SAT);             break;
 384                                 case 0x09a: map_key_clear(KEY_PVR);             break;
 385
 386                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 387                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 388                                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
 389
 390                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 391                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 392                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 393                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 394                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 395                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 396                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 397                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 398                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 399                                 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);    break;
 400
 401                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 402                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 403                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 404                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 405                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 406                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 407
 408                                 case 0x182: map_key_clear(KEY_BOOKMARKS);       break;
 409                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 410                                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
 411                                 case 0x185: map_key_clear(KEY_EDITOR);          break;
 412                                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
 413                                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
 414                                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
 415                                 case 0x189: map_key_clear(KEY_DATABASE);        break;
 416                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 417                                 case 0x18b: map_key_clear(KEY_NEWS);            break;
 418                                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
 419                                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
 420                                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
 421                                 case 0x191: map_key_clear(KEY_FINANCE);         break;
 422                                 case 0x192: map_key_clear(KEY_CALC);            break;
 423                                 case 0x194: map_key_clear(KEY_FILE);            break;
 424                                 case 0x196: map_key_clear(KEY_WWW);             break;
 425                                 case 0x19c: map_key_clear(KEY_LOGOFF);          break;
 426                                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
 427                                 case 0x1a6: map_key_clear(KEY_HELP);            break;
 428                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 429                                 case 0x1ab: map_key_clear(KEY_SPELLCHECK);      break;
 430                                 case 0x1b6: map_key_clear(KEY_MEDIA);           break;
 431                                 case 0x1b7: map_key_clear(KEY_SOUND);           break;
 432                                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
 433                                 case 0x1bd: map_key_clear(KEY_INFO);            break;
 434                                 case 0x201: map_key_clear(KEY_NEW);             break;
 435                                 case 0x202: map_key_clear(KEY_OPEN);            break;
 436                                 case 0x203: map_key_clear(KEY_CLOSE);           break;
 437                                 case 0x204: map_key_clear(KEY_EXIT);            break;
 438                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 439                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 440                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 441                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 442                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 443                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 444                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 445                                 case 0x21f: map_key_clear(KEY_FIND);            break;
 446                                 case 0x221: map_key_clear(KEY_SEARCH);          break;
 447                                 case 0x222: map_key_clear(KEY_GOTO);            break;
 448                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 449                                 case 0x224: map_key_clear(KEY_BACK);            break;
 450                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 451                                 case 0x226: map_key_clear(KEY_STOP);            break;
 452                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 453                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 454                                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
 455                                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
 456                                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
 457                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 458                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 459                                 case 0x238: map_rel(REL_HWHEEL);                break;
 460                                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
 461                                 case 0x279: map_key_clear(KEY_REDO);            break;
 462
 463                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 464                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 465                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 466
 467                                 default:    goto ignore;
 468                         }
 469                         break;
 470
 471                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 472
 473                         set_bit(EV_REP, input->evbit);
 474                         switch (usage->hid & HID_USAGE) {
 475                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 476                                 case 0x070: map_key_clear(KEY_HP);              break;
 477                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 478                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 479                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 480                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 481                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 482                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 483                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 484                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 485                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 486                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 487                                 default:    goto ignore;
 488                         }
 489                         break;
 490
 491                 case HID_UP_MSVENDOR:
 492
 493                         goto ignore;
 494
 495                 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
 496
 497                         set_bit(EV_REP, input->evbit);
 498                         goto ignore;
 499
 500                 case HID_UP_LOGIVENDOR:
 501
 502                         goto ignore;
 503
 504                 case HID_UP_PID:
 505
 506                         switch(usage->hid & HID_USAGE) {
 507                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 508                                 default: goto ignore;
 509                         }
 510                         break;
 511
 512                 default:
 513                 unknown:
 514                         if (field->report_size == 1) {
 515                                 if (field->report->type == HID_OUTPUT_REPORT) {
 516                                         map_led(LED_MISC);
 517                                         break;
 518                                 }
 519                                 map_key(BTN_MISC);
 520                                 break;
 521                         }
 522                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 523                                 map_rel(REL_MISC);
 524                                 break;
 525                         }
 526                         map_abs(ABS_MISC);
 527                         break;
 528         }
 529
 530 mapped:
 531         if (device->driver->input_mapped && device->driver->input_mapped(device,
 532                                 hidinput, field, usage, &bit, &max) < 0)
 533                 goto ignore;
 534
 535         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5 |
 536                         HID_QUIRK_2WHEEL_MOUSE_HACK_B8)) && (usage->type == EV_REL) &&
 537                         (usage->code == REL_WHEEL))
 538                 set_bit(REL_HWHEEL, bit);
 539
 540         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 541                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 542                 goto ignore;
 543
 544         set_bit(usage->type, input->evbit);
 545
 546         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 547                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 548
 549         if (usage->code > max)
 550                 goto ignore;
 551
 552
 553         if (usage->type == EV_ABS) {
 554
 555                 int a = field->logical_minimum;
 556                 int b = field->logical_maximum;
 557
 558                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 559                         a = field->logical_minimum = 0;
 560                         b = field->logical_maximum = 255;
 561                 }
 562
 563                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 564                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 565                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 566
 567         }
 568
 569         if (usage->type == EV_ABS &&
 570             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 571                 int i;
 572                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 573                         input_set_abs_params(input, i, -1, 1, 0, 0);
 574                         set_bit(i, input->absbit);
 575                 }
 576                 if (usage->hat_dir && !field->dpad)
 577                         field->dpad = usage->code;
 578         }
 579
 580         /* for those devices which produce Consumer volume usage as relative,
 581          * we emulate pressing volumeup/volumedown appropriate number of times
 582          * in hidinput_hid_event()
 583          */
 584         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 585                         (usage->code == ABS_VOLUME)) {
 586                 set_bit(KEY_VOLUMEUP, input->keybit);
 587                 set_bit(KEY_VOLUMEDOWN, input->keybit);
 588         }
 589
 590         if (usage->type == EV_KEY) {
 591                 set_bit(EV_MSC, input->evbit);
 592                 set_bit(MSC_SCAN, input->mscbit);
 593         }
 594
 595         hid_resolv_event(usage->type, usage->code);
 596
 597         dbg_hid_line("\n");
 598
 599         return;
 600
 601 ignore:
 602         dbg_hid_line("IGNORED\n");
 603         return;
 604 }
 605
 606 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 607 {
 608         struct input_dev *input;
 609         unsigned *quirks = &hid->quirks;
 610
 611         if (!field->hidinput)
 612                 return;
 613
 614         input = field->hidinput->input;
 615
 616         if (!usage->type)
 617                 return;
 618
 619         /* handle input events for quirky devices */
 620         if (hidinput_event_quirks(hid, field, usage, value))
 621                 return;
 622
 623         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 624                 int hat_dir = usage->hat_dir;
 625                 if (!hat_dir)
 626                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 627                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 628                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 629                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 630                 return;
 631         }
 632
 633         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 634                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 635                 return;
 636         }
 637
 638         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 639                 if (value) {
 640                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 641                         return;
 642                 }
 643                 input_event(input, usage->type, usage->code, 0);
 644                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 645                 return;
 646         }
 647
 648         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 649                 int a = field->logical_minimum;
 650                 int b = field->logical_maximum;
 651                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 652         }
 653
 654         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 655                 dbg_hid("Maximum Effects - %d\n",value);
 656                 return;
 657         }
 658
 659         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 660                 dbg_hid("PID Pool Report\n");
 661                 return;
 662         }
 663
 664         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 665                 return;
 666
 667         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 668                         (usage->code == ABS_VOLUME)) {
 669                 int count = abs(value);
 670                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
 671                 int i;
 672
 673                 for (i = 0; i < count; i++) {
 674                         input_event(input, EV_KEY, direction, 1);
 675                         input_sync(input);
 676                         input_event(input, EV_KEY, direction, 0);
 677                         input_sync(input);
 678                 }
 679                 return;
 680         }
 681
 682         /* report the usage code as scancode if the key status has changed */
 683         if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
 684                 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
 685
 686         input_event(input, usage->type, usage->code, value);
 687
 688         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 689                 input_event(input, usage->type, usage->code, 0);
 690 }
 691
 692 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 693 {
 694         struct hid_input *hidinput;
 695
 696         list_for_each_entry(hidinput, &hid->inputs, list)
 697                 input_sync(hidinput->input);
 698 }
 699 EXPORT_SYMBOL_GPL(hidinput_report_event);
 700
 701 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
 702 {
 703         struct hid_report *report;
 704         int i, j;
 705
 706         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
 707                 for (i = 0; i < report->maxfield; i++) {
 708                         *field = report->field[i];
 709                         for (j = 0; j < (*field)->maxusage; j++)
 710                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
 711                                         return j;
 712                 }
 713         }
 714         return -1;
 715 }
 716 EXPORT_SYMBOL_GPL(hidinput_find_field);
 717
 718 static int hidinput_open(struct input_dev *dev)
 719 {
 720         struct hid_device *hid = input_get_drvdata(dev);
 721
 722         return hid->ll_driver->open(hid);
 723 }
 724
 725 static void hidinput_close(struct input_dev *dev)
 726 {
 727         struct hid_device *hid = input_get_drvdata(dev);
 728
 729         hid->ll_driver->close(hid);
 730 }
 731
 732 /*
 733  * Register the input device; print a message.
 734  * Configure the input layer interface
 735  * Read all reports and initialize the absolute field values.
 736  */
 737
 738 int hidinput_connect(struct hid_device *hid)
 739 {
 740         struct hid_report *report;
 741         struct hid_input *hidinput = NULL;
 742         struct input_dev *input_dev;
 743         int i, j, k;
 744         int max_report_type = HID_OUTPUT_REPORT;
 745
 746         if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
 747                 return -1;
 748
 749         INIT_LIST_HEAD(&hid->inputs);
 750
 751         for (i = 0; i < hid->maxcollection; i++)
 752                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
 753                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
 754                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
 755                                 break;
 756
 757         if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
 758                 return -1;
 759
 760         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
 761                 max_report_type = HID_INPUT_REPORT;
 762
 763         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
 764                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 765
 766                         if (!report->maxfield)
 767                                 continue;
 768
 769                         if (!hidinput) {
 770                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
 771                                 input_dev = input_allocate_device();
 772                                 if (!hidinput || !input_dev) {
 773                                         kfree(hidinput);
 774                                         input_free_device(input_dev);
 775                                         err_hid("Out of memory during hid input probe");
 776                                         goto out_unwind;
 777                                 }
 778
 779                                 input_set_drvdata(input_dev, hid);
 780                                 input_dev->event =
 781                                         hid->ll_driver->hidinput_input_event;
 782                                 input_dev->open = hidinput_open;
 783                                 input_dev->close = hidinput_close;
 784                                 input_dev->setkeycode = hidinput_setkeycode;
 785                                 input_dev->getkeycode = hidinput_getkeycode;
 786
 787                                 input_dev->name = hid->name;
 788                                 input_dev->phys = hid->phys;
 789                                 input_dev->uniq = hid->uniq;
 790                                 input_dev->id.bustype = hid->bus;
 791                                 input_dev->id.vendor  = hid->vendor;
 792                                 input_dev->id.product = hid->product;
 793                                 input_dev->id.version = hid->version;
 794                                 input_dev->dev.parent = hid->dev.parent;
 795                                 hidinput->input = input_dev;
 796                                 list_add_tail(&hidinput->list, &hid->inputs);
 797                         }
 798
 799                         for (i = 0; i < report->maxfield; i++)
 800                                 for (j = 0; j < report->field[i]->maxusage; j++)
 801                                         hidinput_configure_usage(hidinput, report->field[i],
 802                                                                  report->field[i]->usage + j);
 803
 804                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
 805                                 /* This will leave hidinput NULL, so that it
 806                                  * allocates another one if we have more inputs on
 807                                  * the same interface. Some devices (e.g. Happ's
 808                                  * UGCI) cram a lot of unrelated inputs into the
 809                                  * same interface. */
 810                                 hidinput->report = report;
 811                                 if (input_register_device(hidinput->input))
 812                                         goto out_cleanup;
 813                                 hidinput = NULL;
 814                         }
 815                 }
 816
 817         if (hidinput && input_register_device(hidinput->input))
 818                 goto out_cleanup;
 819
 820         return 0;
 821
 822 out_cleanup:
 823         input_free_device(hidinput->input);
 824         kfree(hidinput);
 825 out_unwind:
 826         /* unwind the ones we already registered */
 827         hidinput_disconnect(hid);
 828
 829         return -1;
 830 }
 831 EXPORT_SYMBOL_GPL(hidinput_connect);
 832
 833 void hidinput_disconnect(struct hid_device *hid)
 834 {
 835         struct hid_input *hidinput, *next;
 836
 837         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
 838                 list_del(&hidinput->list);
 839                 input_unregister_device(hidinput->input);
 840                 kfree(hidinput);
 841         }
 842 }
 843 EXPORT_SYMBOL_GPL(hidinput_disconnect);
 844