SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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;
 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