drivers/hid/hid-input.c

   1 /*
   2  * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
   3  *
   4  *  Copyright (c) 2000-2001 Vojtech Pavlik
   5  *  Copyright (c) 2006-2007 Jiri Kosina
   6  *
   7  *  HID to Linux Input mapping
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  24  *
  25  * Should you need to contact me, the author, you can do so either by
  26  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  27  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  28  */
  29
  30 #include <linux/module.h>
  31 #include <linux/slab.h>
  32 #include <linux/kernel.h>
  33
  34 #include <linux/hid.h>
  35 #include <linux/hid-debug.h>
  36
  37 static int hid_pb_fnmode = 1;
  38 module_param_named(pb_fnmode, hid_pb_fnmode, int, 0644);
  39 MODULE_PARM_DESC(pb_fnmode,
  40                 "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
  41
  42 #define unk     KEY_UNKNOWN
  43
  44 static const unsigned char hid_keyboard[256] = {
  45           0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
  46          50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
  47           4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
  48          27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
  49          65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
  50         105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
  51          72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
  52         191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
  53         115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
  54         122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  55         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  56         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  57         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  58         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  59          29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
  60         150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
  61 };
  62
  63 static const struct {
  64         __s32 x;
  65         __s32 y;
  66 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
  67
  68 #define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
  69 #define map_rel(c)      do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
  70 #define map_key(c)      do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
  71 #define map_led(c)      do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
  72
  73 #define map_abs_clear(c)        do { map_abs(c); clear_bit(c, bit); } while (0)
  74 #define map_key_clear(c)        do { map_key(c); clear_bit(c, bit); } while (0)
  75
  76 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
  77
  78 struct hidinput_key_translation {
  79         u16 from;
  80         u16 to;
  81         u8 flags;
  82 };
  83
  84 #define POWERBOOK_FLAG_FKEY 0x01
  85
  86 static struct hidinput_key_translation powerbook_fn_keys[] = {
  87         { KEY_BACKSPACE, KEY_DELETE },
  88         { KEY_F1,       KEY_BRIGHTNESSDOWN,     POWERBOOK_FLAG_FKEY },
  89         { KEY_F2,       KEY_BRIGHTNESSUP,       POWERBOOK_FLAG_FKEY },
  90         { KEY_F3,       KEY_MUTE,               POWERBOOK_FLAG_FKEY },
  91         { KEY_F4,       KEY_VOLUMEDOWN,         POWERBOOK_FLAG_FKEY },
  92         { KEY_F5,       KEY_VOLUMEUP,           POWERBOOK_FLAG_FKEY },
  93         { KEY_F6,       KEY_NUMLOCK,            POWERBOOK_FLAG_FKEY },
  94         { KEY_F7,       KEY_SWITCHVIDEOMODE,    POWERBOOK_FLAG_FKEY },
  95         { KEY_F8,       KEY_KBDILLUMTOGGLE,     POWERBOOK_FLAG_FKEY },
  96         { KEY_F9,       KEY_KBDILLUMDOWN,       POWERBOOK_FLAG_FKEY },
  97         { KEY_F10,      KEY_KBDILLUMUP,         POWERBOOK_FLAG_FKEY },
  98         { KEY_UP,       KEY_PAGEUP },
  99         { KEY_DOWN,     KEY_PAGEDOWN },
 100         { KEY_LEFT,     KEY_HOME },
 101         { KEY_RIGHT,    KEY_END },
 102         { }
 103 };
 104
 105 static struct hidinput_key_translation powerbook_numlock_keys[] = {
 106         { KEY_J,        KEY_KP1 },
 107         { KEY_K,        KEY_KP2 },
 108         { KEY_L,        KEY_KP3 },
 109         { KEY_U,        KEY_KP4 },
 110         { KEY_I,        KEY_KP5 },
 111         { KEY_O,        KEY_KP6 },
 112         { KEY_7,        KEY_KP7 },
 113         { KEY_8,        KEY_KP8 },
 114         { KEY_9,        KEY_KP9 },
 115         { KEY_M,        KEY_KP0 },
 116         { KEY_DOT,      KEY_KPDOT },
 117         { KEY_SLASH,    KEY_KPPLUS },
 118         { KEY_SEMICOLON, KEY_KPMINUS },
 119         { KEY_P,        KEY_KPASTERISK },
 120         { KEY_MINUS,    KEY_KPEQUAL },
 121         { KEY_0,        KEY_KPSLASH },
 122         { KEY_F6,       KEY_NUMLOCK },
 123         { KEY_KPENTER,  KEY_KPENTER },
 124         { KEY_BACKSPACE, KEY_BACKSPACE },
 125         { }
 126 };
 127
 128 static struct hidinput_key_translation powerbook_iso_keyboard[] = {
 129         { KEY_GRAVE,    KEY_102ND },
 130         { KEY_102ND,    KEY_GRAVE },
 131         { }
 132 };
 133
 134 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
 135 {
 136         struct hidinput_key_translation *trans;
 137
 138         /* Look for the translation */
 139         for (trans = table; trans->from; trans++)
 140                 if (trans->from == from)
 141                         return trans;
 142
 143         return NULL;
 144 }
 145
 146 static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 147                 struct hid_usage *usage, __s32 value)
 148 {
 149         struct hidinput_key_translation *trans;
 150
 151         if (usage->code == KEY_FN) {
 152                 if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
 153                 else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
 154
 155                 input_event(input, usage->type, usage->code, value);
 156
 157                 return 1;
 158         }
 159
 160         if (hid_pb_fnmode) {
 161                 int do_translate;
 162
 163                 trans = find_translation(powerbook_fn_keys, usage->code);
 164                 if (trans) {
 165                         if (test_bit(usage->code, hid->pb_pressed_fn))
 166                                 do_translate = 1;
 167                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
 168                                 do_translate =
 169                                         (hid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
 170                                         (hid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
 171                         else
 172                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
 173
 174                         if (do_translate) {
 175                                 if (value)
 176                                         set_bit(usage->code, hid->pb_pressed_fn);
 177                                 else
 178                                         clear_bit(usage->code, hid->pb_pressed_fn);
 179
 180                                 input_event(input, usage->type, trans->to, value);
 181
 182                                 return 1;
 183                         }
 184                 }
 185
 186                 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
 187                                 test_bit(LED_NUML, input->led)) {
 188                         trans = find_translation(powerbook_numlock_keys, usage->code);
 189
 190                         if (trans) {
 191                                 if (value)
 192                                         set_bit(usage->code, hid->pb_pressed_numlock);
 193                                 else
 194                                         clear_bit(usage->code, hid->pb_pressed_numlock);
 195
 196                                 input_event(input, usage->type, trans->to, value);
 197                         }
 198
 199                         return 1;
 200                 }
 201         }
 202
 203         if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
 204                 trans = find_translation(powerbook_iso_keyboard, usage->code);
 205                 if (trans) {
 206                         input_event(input, usage->type, trans->to, value);
 207                         return 1;
 208                 }
 209         }
 210
 211         return 0;
 212 }
 213
 214 static void hidinput_pb_setup(struct input_dev *input)
 215 {
 216         struct hidinput_key_translation *trans;
 217
 218         set_bit(KEY_NUMLOCK, input->keybit);
 219
 220         /* Enable all needed keys */
 221         for (trans = powerbook_fn_keys; trans->from; trans++)
 222                 set_bit(trans->to, input->keybit);
 223
 224         for (trans = powerbook_numlock_keys; trans->from; trans++)
 225                 set_bit(trans->to, input->keybit);
 226
 227         for (trans = powerbook_iso_keyboard; trans->from; trans++)
 228                 set_bit(trans->to, input->keybit);
 229
 230 }
 231 #else
 232 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 233                 struct hid_usage *usage, __s32 value)
 234 {
 235         return 0;
 236 }
 237
 238 static inline void hidinput_pb_setup(struct input_dev *input)
 239 {
 240 }
 241 #endif
 242
 243 static inline int match_scancode(int code, int scancode)
 244 {
 245         if (scancode == 0)
 246                 return 1;
 247         return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
 248 }
 249
 250 static inline int match_keycode(int code, int keycode)
 251 {
 252         if (keycode == 0)
 253                 return 1;
 254         return (code == keycode);
 255 }
 256
 257 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
 258                 int scancode, int keycode)
 259 {
 260         int i, j, k;
 261         struct hid_report *report;
 262         struct hid_usage *usage;
 263
 264         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
 265                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 266                         for (i = 0; i < report->maxfield; i++) {
 267                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
 268                                         usage = report->field[i]->usage + j;
 269                                         if (usage->type == EV_KEY &&
 270                                                 match_scancode(usage->hid, scancode) &&
 271                                                 match_keycode(usage->code, keycode))
 272                                                 return usage;
 273                                 }
 274                         }
 275                 }
 276         }
 277         return NULL;
 278 }
 279
 280 static int hidinput_getkeycode(struct input_dev *dev, int scancode,
 281                                 int *keycode)
 282 {
 283         struct hid_device *hid = dev->private;
 284         struct hid_usage *usage;
 285
 286         usage = hidinput_find_key(hid, scancode, 0);
 287         if (usage) {
 288                 *keycode = usage->code;
 289                 return 0;
 290         }
 291         return -EINVAL;
 292 }
 293
 294 static int hidinput_setkeycode(struct input_dev *dev, int scancode,
 295                                 int keycode)
 296 {
 297         struct hid_device *hid = dev->private;
 298         struct hid_usage *usage;
 299         int old_keycode;
 300
 301         if (keycode < 0 || keycode > KEY_MAX)
 302                 return -EINVAL;
 303
 304         usage = hidinput_find_key(hid, scancode, 0);
 305         if (usage) {
 306                 old_keycode = usage->code;
 307                 usage->code = keycode;
 308
 309                 clear_bit(old_keycode, dev->keybit);
 310                 set_bit(usage->code, dev->keybit);
 311 #ifdef CONFIG_HID_DEBUG
 312                 printk (KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
 313 #endif
 314                 /* Set the keybit for the old keycode if the old keycode is used
 315                  * by another key */
 316                 if (hidinput_find_key (hid, 0, old_keycode))
 317                         set_bit(old_keycode, dev->keybit);
 318
 319                 return 0;
 320         }
 321
 322         return -EINVAL;
 323 }
 324
 325
 326 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 327                                      struct hid_usage *usage)
 328 {
 329         struct input_dev *input = hidinput->input;
 330         struct hid_device *device = input_get_drvdata(input);
 331         int max = 0, code;
 332         unsigned long *bit = NULL;
 333
 334         field->hidinput = hidinput;
 335
 336 #ifdef CONFIG_HID_DEBUG
 337         printk(KERN_DEBUG "Mapping: ");
 338         hid_resolv_usage(usage->hid);
 339         printk(" ---> ");
 340 #endif
 341
 342         if (field->flags & HID_MAIN_ITEM_CONSTANT)
 343                 goto ignore;
 344
 345         switch (usage->hid & HID_USAGE_PAGE) {
 346
 347                 case HID_UP_UNDEFINED:
 348                         goto ignore;
 349
 350                 case HID_UP_KEYBOARD:
 351
 352                         set_bit(EV_REP, input->evbit);
 353
 354                         if ((usage->hid & HID_USAGE) < 256) {
 355                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 356                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 357                         } else
 358                                 map_key(KEY_UNKNOWN);
 359
 360                         break;
 361
 362                 case HID_UP_BUTTON:
 363
 364                         code = ((usage->hid - 1) & 0xf);
 365
 366                         switch (field->application) {
 367                                 case HID_GD_MOUSE:
 368                                 case HID_GD_POINTER:  code += 0x110; break;
 369                                 case HID_GD_JOYSTICK: code += 0x120; break;
 370                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 371                                 default:
 372                                         switch (field->physical) {
 373                                                 case HID_GD_MOUSE:
 374                                                 case HID_GD_POINTER:  code += 0x110; break;
 375                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 376                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 377                                                 default:              code += 0x100;
 378                                         }
 379                         }
 380
 381                         map_key(code);
 382                         break;
 383
 384
 385                 case HID_UP_SIMULATION:
 386
 387                         switch (usage->hid & 0xffff) {
 388                                 case 0xba: map_abs(ABS_RUDDER);   break;
 389                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 390                                 case 0xc4: map_abs(ABS_GAS);      break;
 391                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 392                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 393                                 default:   goto ignore;
 394                         }
 395                         break;
 396
 397                 case HID_UP_GENDESK:
 398
 399                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 400                                 switch (usage->hid & 0xf) {
 401                                         case 0x1: map_key_clear(KEY_POWER);  break;
 402                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 403                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 404                                         default: goto unknown;
 405                                 }
 406                                 break;
 407                         }
 408
 409                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 410                                 switch (usage->hid) {
 411                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 412                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 413                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 414                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 415                                         default: goto unknown;
 416                                 }
 417                                 if (field->dpad) {
 418                                         map_abs(field->dpad);
 419                                         goto ignore;
 420                                 }
 421                                 map_abs(ABS_HAT0X);
 422                                 break;
 423                         }
 424
 425                         switch (usage->hid) {
 426
 427                                 /* These usage IDs map directly to the usage codes. */
 428                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 429                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 430                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 431                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 432                                                 map_rel(usage->hid & 0xf);
 433                                         else
 434                                                 map_abs(usage->hid & 0xf);
 435                                         break;
 436
 437                                 case HID_GD_HATSWITCH:
 438                                         usage->hat_min = field->logical_minimum;
 439                                         usage->hat_max = field->logical_maximum;
 440                                         map_abs(ABS_HAT0X);
 441                                         break;
 442
 443                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 444                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 445
 446                                 default: goto unknown;
 447                         }
 448
 449                         break;
 450
 451                 case HID_UP_LED:
 452
 453                         switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
 454                                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
 455                                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
 456                                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
 457                                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
 458                                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
 459                                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
 460                                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
 461                                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
 462                                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
 463                                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
 464                                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
 465
 466                                 default: goto ignore;
 467                         }
 468                         break;
 469
 470                 case HID_UP_DIGITIZER:
 471
 472                         switch (usage->hid & 0xff) {
 473
 474                                 case 0x30: /* TipPressure */
 475                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 476                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 477                                                 set_bit(EV_KEY, input->evbit);
 478                                                 set_bit(BTN_TOUCH, input->keybit);
 479                                         }
 480
 481                                         map_abs_clear(ABS_PRESSURE);
 482                                         break;
 483
 484                                 case 0x32: /* InRange */
 485                                         switch (field->physical & 0xff) {
 486                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 487                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 488                                                 default: map_key(BTN_TOOL_PEN); break;
 489                                         }
 490                                         break;
 491
 492                                 case 0x3c: /* Invert */
 493                                         map_key_clear(BTN_TOOL_RUBBER);
 494                                         break;
 495
 496                                 case 0x33: /* Touch */
 497                                 case 0x42: /* TipSwitch */
 498                                 case 0x43: /* TipSwitch2 */
 499                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 500                                         map_key_clear(BTN_TOUCH);
 501                                         break;
 502
 503                                 case 0x44: /* BarrelSwitch */
 504                                         map_key_clear(BTN_STYLUS);
 505                                         break;
 506
 507                                 default:  goto unknown;
 508                         }
 509                         break;
 510
 511                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 512
 513                         switch (usage->hid & HID_USAGE) {
 514                                 case 0x000: goto ignore;
 515                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 516                                 case 0x036: map_key_clear(BTN_MISC);            break;
 517                                 /*
 518                                  * The next three are reported by Belkin wireless
 519                                  * keyboard (1020:0006). These values are "reserved"
 520                                  * in HUT 1.12.
 521                                  */
 522                                 case 0x03a: map_key_clear(KEY_SOUND);           break;
 523                                 case 0x03b: map_key_clear(KEY_CAMERA);          break;
 524                                 case 0x03c: map_key_clear(KEY_DOCUMENTS);       break;
 525
 526                                 case 0x040: map_key_clear(KEY_MENU);            break;
 527                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 528
 529                                 case 0x083: map_key_clear(KEY_LAST);            break;
 530                                 case 0x088: map_key_clear(KEY_PC);              break;
 531                                 case 0x089: map_key_clear(KEY_TV);              break;
 532                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 533                                 case 0x08b: map_key_clear(KEY_DVD);             break;
 534                                 case 0x08c: map_key_clear(KEY_PHONE);           break;
 535                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 536                                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
 537                                 case 0x08f: map_key_clear(KEY_GAMES);           break;
 538                                 case 0x090: map_key_clear(KEY_MEMO);            break;
 539                                 case 0x091: map_key_clear(KEY_CD);              break;
 540                                 case 0x092: map_key_clear(KEY_VCR);             break;
 541                                 case 0x093: map_key_clear(KEY_TUNER);           break;
 542                                 case 0x094: map_key_clear(KEY_EXIT);            break;
 543                                 case 0x095: map_key_clear(KEY_HELP);            break;
 544                                 case 0x096: map_key_clear(KEY_TAPE);            break;
 545                                 case 0x097: map_key_clear(KEY_TV2);             break;
 546                                 case 0x098: map_key_clear(KEY_SAT);             break;
 547                                 case 0x09a: map_key_clear(KEY_PVR);             break;
 548
 549                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 550                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 551                                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
 552
 553                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 554                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 555                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 556                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 557                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 558                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 559                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 560                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 561                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 562
 563                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 564                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 565                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 566                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 567                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 568                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 569
 570                                 /* reserved in HUT 1.12. Reported on Petalynx remote */
 571                                 case 0x0f6: map_key_clear(KEY_NEXT);            break;
 572                                 case 0x0fa: map_key_clear(KEY_BACK);            break;
 573
 574                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 575                                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
 576                                 case 0x185: map_key_clear(KEY_EDITOR);          break;
 577                                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
 578                                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
 579                                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
 580                                 case 0x189: map_key_clear(KEY_DATABASE);        break;
 581                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 582                                 case 0x18b: map_key_clear(KEY_NEWS);            break;
 583                                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
 584                                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
 585                                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
 586                                 case 0x191: map_key_clear(KEY_FINANCE);         break;
 587                                 case 0x192: map_key_clear(KEY_CALC);            break;
 588                                 case 0x194: map_key_clear(KEY_FILE);            break;
 589                                 case 0x196: map_key_clear(KEY_WWW);             break;
 590                                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
 591                                 case 0x1a6: map_key_clear(KEY_HELP);            break;
 592                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 593                                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
 594                                 case 0x1bd: map_key_clear(KEY_INFO);            break;
 595                                 case 0x201: map_key_clear(KEY_NEW);             break;
 596                                 case 0x202: map_key_clear(KEY_OPEN);            break;
 597                                 case 0x203: map_key_clear(KEY_CLOSE);           break;
 598                                 case 0x204: map_key_clear(KEY_EXIT);            break;
 599                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 600                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 601                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 602                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 603                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 604                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 605                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 606                                 case 0x21f: map_key_clear(KEY_FIND);            break;
 607                                 case 0x221: map_key_clear(KEY_SEARCH);          break;
 608                                 case 0x222: map_key_clear(KEY_GOTO);            break;
 609                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 610                                 case 0x224: map_key_clear(KEY_BACK);            break;
 611                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 612                                 case 0x226: map_key_clear(KEY_STOP);            break;
 613                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 614                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 615                                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
 616                                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
 617                                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
 618                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 619                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 620                                 case 0x238: map_rel(REL_HWHEEL);                break;
 621                                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
 622                                 case 0x279: map_key_clear(KEY_REDO);            break;
 623
 624                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 625                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 626                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 627
 628                                 /* Reported on a Cherry Cymotion keyboard */
 629                                 case 0x301: map_key_clear(KEY_PROG1);           break;
 630                                 case 0x302: map_key_clear(KEY_PROG2);           break;
 631                                 case 0x303: map_key_clear(KEY_PROG3);           break;
 632
 633                                 /* Reported on certain Logitech wireless keyboards */
 634                                 case 0x1001: map_key_clear(KEY_MESSENGER);      break;
 635                                 case 0x1003: map_key_clear(KEY_SOUND);          break;
 636                                 case 0x1004: map_key_clear(KEY_VIDEO);          break;
 637                                 case 0x1005: map_key_clear(KEY_AUDIO);          break;
 638                                 case 0x100a: map_key_clear(KEY_DOCUMENTS);      break;
 639                                 case 0x1011: map_key_clear(KEY_PREVIOUSSONG);   break;
 640                                 case 0x1012: map_key_clear(KEY_NEXTSONG);       break;
 641                                 case 0x1013: map_key_clear(KEY_CAMERA);         break;
 642                                 case 0x1014: map_key_clear(KEY_MESSENGER);      break;
 643                                 case 0x1015: map_key_clear(KEY_RECORD);         break;
 644                                 case 0x1016: map_key_clear(KEY_PLAYER);         break;
 645                                 case 0x1017: map_key_clear(KEY_EJECTCD);        break;
 646                                 case 0x1018: map_key_clear(KEY_MEDIA);          break;
 647                                 case 0x1019: map_key_clear(KEY_PROG1);          break;
 648                                 case 0x101a: map_key_clear(KEY_PROG2);          break;
 649                                 case 0x101b: map_key_clear(KEY_PROG3);          break;
 650                                 case 0x101f: map_key_clear(KEY_ZOOMIN);         break;
 651                                 case 0x1020: map_key_clear(KEY_ZOOMOUT);        break;
 652                                 case 0x1021: map_key_clear(KEY_ZOOMRESET);      break;
 653                                 case 0x1023: map_key_clear(KEY_CLOSE);          break;
 654                                 case 0x1027: map_key_clear(KEY_MENU);           break;
 655                                 /* this one is marked as 'Rotate' */
 656                                 case 0x1028: map_key_clear(KEY_ANGLE);          break;
 657                                 case 0x1029: map_key_clear(KEY_SHUFFLE);        break;
 658                                 case 0x102a: map_key_clear(KEY_BACK);           break;
 659                                 case 0x102b: map_key_clear(KEY_CYCLEWINDOWS);   break;
 660                                 case 0x1041: map_key_clear(KEY_BATTERY);        break;
 661                                 case 0x1042: map_key_clear(KEY_WORDPROCESSOR);  break;
 662                                 case 0x1043: map_key_clear(KEY_SPREADSHEET);    break;
 663                                 case 0x1044: map_key_clear(KEY_PRESENTATION);   break;
 664                                 case 0x1045: map_key_clear(KEY_UNDO);           break;
 665                                 case 0x1046: map_key_clear(KEY_REDO);           break;
 666                                 case 0x1047: map_key_clear(KEY_PRINT);          break;
 667                                 case 0x1048: map_key_clear(KEY_SAVE);           break;
 668                                 case 0x1049: map_key_clear(KEY_PROG1);          break;
 669                                 case 0x104a: map_key_clear(KEY_PROG2);          break;
 670                                 case 0x104b: map_key_clear(KEY_PROG3);          break;
 671                                 case 0x104c: map_key_clear(KEY_PROG4);          break;
 672
 673                                 default:    goto ignore;
 674                         }
 675                         break;
 676
 677                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 678
 679                         set_bit(EV_REP, input->evbit);
 680                         switch (usage->hid & HID_USAGE) {
 681                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 682                                 case 0x070: map_key_clear(KEY_HP);              break;
 683                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 684                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 685                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 686                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 687                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 688                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 689                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 690                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 691                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 692                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 693                                 default:    goto ignore;
 694                         }
 695                         break;
 696
 697                 case HID_UP_MSVENDOR:
 698
 699                         /* special case - Chicony Chicony KU-0418 tactical pad */
 700                         if (device->vendor == 0x04f2 && device->product == 0x0418) {
 701                                 set_bit(EV_REP, input->evbit);
 702                                 switch(usage->hid & HID_USAGE) {
 703                                         case 0xff01: map_key_clear(BTN_1);              break;
 704                                         case 0xff02: map_key_clear(BTN_2);              break;
 705                                         case 0xff03: map_key_clear(BTN_3);              break;
 706                                         case 0xff04: map_key_clear(BTN_4);              break;
 707                                         case 0xff05: map_key_clear(BTN_5);              break;
 708                                         case 0xff06: map_key_clear(BTN_6);              break;
 709                                         case 0xff07: map_key_clear(BTN_7);              break;
 710                                         case 0xff08: map_key_clear(BTN_8);              break;
 711                                         case 0xff09: map_key_clear(BTN_9);              break;
 712                                         case 0xff0a: map_key_clear(BTN_A);              break;
 713                                         case 0xff0b: map_key_clear(BTN_B);              break;
 714                                         default:    goto ignore;
 715                                 }
 716                         } else {
 717                                 goto ignore;
 718                         }
 719                         break;
 720
 721                 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
 722
 723                         set_bit(EV_REP, input->evbit);
 724                         switch(usage->hid & HID_USAGE) {
 725                                 case 0x003:
 726                                         /* The fn key on Apple PowerBooks */
 727                                         map_key_clear(KEY_FN);
 728                                         hidinput_pb_setup(input);
 729                                         break;
 730
 731                                 default:    goto ignore;
 732                         }
 733                         break;
 734
 735                 case HID_UP_LOGIVENDOR:
 736                         set_bit(EV_REP, input->evbit);
 737                         switch(usage->hid & HID_USAGE) {
 738                                 /* Reported on Logitech Ultra X Media Remote */
 739                                 case 0x004: map_key_clear(KEY_AGAIN);           break;
 740                                 case 0x00d: map_key_clear(KEY_HOME);            break;
 741                                 case 0x024: map_key_clear(KEY_SHUFFLE);         break;
 742                                 case 0x025: map_key_clear(KEY_TV);              break;
 743                                 case 0x026: map_key_clear(KEY_MENU);            break;
 744                                 case 0x031: map_key_clear(KEY_AUDIO);           break;
 745                                 case 0x032: map_key_clear(KEY_TEXT);            break;
 746                                 case 0x033: map_key_clear(KEY_LAST);            break;
 747                                 case 0x047: map_key_clear(KEY_MP3);             break;
 748                                 case 0x048: map_key_clear(KEY_DVD);             break;
 749                                 case 0x049: map_key_clear(KEY_MEDIA);           break;
 750                                 case 0x04a: map_key_clear(KEY_VIDEO);           break;
 751                                 case 0x04b: map_key_clear(KEY_ANGLE);           break;
 752                                 case 0x04c: map_key_clear(KEY_LANGUAGE);        break;
 753                                 case 0x04d: map_key_clear(KEY_SUBTITLE);        break;
 754                                 case 0x051: map_key_clear(KEY_RED);             break;
 755                                 case 0x052: map_key_clear(KEY_CLOSE);           break;
 756
 757                                 /* Reported on Petalynx Maxter remote */
 758                                 case 0x05a: map_key_clear(KEY_TEXT);            break;
 759                                 case 0x05b: map_key_clear(KEY_RED);             break;
 760                                 case 0x05c: map_key_clear(KEY_GREEN);           break;
 761                                 case 0x05d: map_key_clear(KEY_YELLOW);          break;
 762                                 case 0x05e: map_key_clear(KEY_BLUE);            break;
 763
 764                                 default:    goto ignore;
 765                         }
 766                         break;
 767
 768                 case HID_UP_PID:
 769
 770                         switch(usage->hid & HID_USAGE) {
 771                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 772                                 default: goto ignore;
 773                         }
 774                         break;
 775
 776                 default:
 777                 unknown:
 778                         if (field->report_size == 1) {
 779                                 if (field->report->type == HID_OUTPUT_REPORT) {
 780                                         map_led(LED_MISC);
 781                                         break;
 782                                 }
 783                                 map_key(BTN_MISC);
 784                                 break;
 785                         }
 786                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 787                                 map_rel(REL_MISC);
 788                                 break;
 789                         }
 790                         map_abs(ABS_MISC);
 791                         break;
 792         }
 793
 794         if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
 795                 if (usage->hid == HID_GD_Z)
 796                         map_rel(REL_HWHEEL);
 797                 else if (usage->code == BTN_1)
 798                         map_key(BTN_2);
 799                 else if (usage->code == BTN_2)
 800                         map_key(BTN_1);
 801         }
 802
 803         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
 804                  (usage->type == EV_REL) && (usage->code == REL_WHEEL))
 805                         set_bit(REL_HWHEEL, bit);
 806
 807         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 808                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 809                 goto ignore;
 810
 811         if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
 812                 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
 813                 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
 814
 815         set_bit(usage->type, input->evbit);
 816
 817         if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
 818                         (usage->type == EV_KEY ||
 819                          usage->type == EV_REL ||
 820                          usage->type == EV_ABS))
 821                 clear_bit(usage->code, bit);
 822
 823         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 824                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 825
 826         if (usage->code > max)
 827                 goto ignore;
 828
 829
 830         if (usage->type == EV_ABS) {
 831
 832                 int a = field->logical_minimum;
 833                 int b = field->logical_maximum;
 834
 835                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 836                         a = field->logical_minimum = 0;
 837                         b = field->logical_maximum = 255;
 838                 }
 839
 840                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 841                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 842                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 843
 844         }
 845
 846         if (usage->type == EV_ABS &&
 847             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 848                 int i;
 849                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 850                         input_set_abs_params(input, i, -1, 1, 0, 0);
 851                         set_bit(i, input->absbit);
 852                 }
 853                 if (usage->hat_dir && !field->dpad)
 854                         field->dpad = usage->code;
 855         }
 856
 857         hid_resolv_event(usage->type, usage->code);
 858 #ifdef CONFIG_HID_DEBUG
 859         printk("\n");
 860 #endif
 861         return;
 862
 863 ignore:
 864 #ifdef CONFIG_HID_DEBUG
 865         printk("IGNORED\n");
 866 #endif
 867         return;
 868 }
 869
 870 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 871 {
 872         struct input_dev *input;
 873         int *quirks = &hid->quirks;
 874
 875         if (!field->hidinput)
 876                 return;
 877
 878         input = field->hidinput->input;
 879
 880         if (!usage->type)
 881                 return;
 882
 883         if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 884                 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
 885                 if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 886                 else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 887                 return;
 888         }
 889
 890         if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
 891                 input_event(input, usage->type, usage->code, -value);
 892                 return;
 893         }
 894
 895         if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
 896                 input_event(input, usage->type, REL_HWHEEL, value);
 897                 return;
 898         }
 899
 900         if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
 901                 return;
 902
 903         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 904                 int hat_dir = usage->hat_dir;
 905                 if (!hat_dir)
 906                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 907                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 908                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 909                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 910                 return;
 911         }
 912
 913         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 914                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 915                 return;
 916         }
 917
 918         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 919                 if (value) {
 920                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 921                         return;
 922                 }
 923                 input_event(input, usage->type, usage->code, 0);
 924                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 925                 return;
 926         }
 927
 928         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 929                 int a = field->logical_minimum;
 930                 int b = field->logical_maximum;
 931                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 932         }
 933
 934         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 935                 dbg("Maximum Effects - %d",value);
 936                 return;
 937         }
 938
 939         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 940                 dbg("PID Pool Report\n");
 941                 return;
 942         }
 943
 944         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 945                 return;
 946
 947         input_event(input, usage->type, usage->code, value);
 948
 949         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 950                 input_event(input, usage->type, usage->code, 0);
 951 }
 952
 953 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 954 {
 955         struct hid_input *hidinput;
 956
 957         list_for_each_entry(hidinput, &hid->inputs, list)
 958                 input_sync(hidinput->input);
 959 }
 960 EXPORT_SYMBOL_GPL(hidinput_report_event);
 961
 962 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
 963 {
 964         struct hid_report *report;
 965         int i, j;
 966
 967         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
 968                 for (i = 0; i < report->maxfield; i++) {
 969                         *field = report->field[i];
 970                         for (j = 0; j < (*field)->maxusage; j++)
 971                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
 972                                         return j;
 973                 }
 974         }
 975         return -1;
 976 }
 977 EXPORT_SYMBOL_GPL(hidinput_find_field);
 978
 979 static int hidinput_open(struct input_dev *dev)
 980 {
 981         struct hid_device *hid = input_get_drvdata(dev);
 982
 983         return hid->hid_open(hid);
 984 }
 985
 986 static void hidinput_close(struct input_dev *dev)
 987 {
 988         struct hid_device *hid = input_get_drvdata(dev);
 989
 990         hid->hid_close(hid);
 991 }
 992
 993 /*
 994  * Register the input device; print a message.
 995  * Configure the input layer interface
 996  * Read all reports and initialize the absolute field values.
 997  */
 998
 999 int hidinput_connect(struct hid_device *hid)
1000 {
1001         struct hid_report *report;
1002         struct hid_input *hidinput = NULL;
1003         struct input_dev *input_dev;
1004         int i, j, k;
1005         int max_report_type = HID_OUTPUT_REPORT;
1006
1007         INIT_LIST_HEAD(&hid->inputs);
1008
1009         for (i = 0; i < hid->maxcollection; i++)
1010                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
1011                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
1012                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
1013                                 break;
1014
1015         if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
1016                 return -1;
1017
1018         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1019                 max_report_type = HID_INPUT_REPORT;
1020
1021         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
1022                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1023
1024                         if (!report->maxfield)
1025                                 continue;
1026
1027                         if (!hidinput) {
1028                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1029                                 input_dev = input_allocate_device();
1030                                 if (!hidinput || !input_dev) {
1031                                         kfree(hidinput);
1032                                         input_free_device(input_dev);
1033                                         err("Out of memory during hid input probe");
1034                                         return -1;
1035                                 }
1036
1037                                 input_set_drvdata(input_dev, hid);
1038                                 input_dev->event = hid->hidinput_input_event;
1039                                 input_dev->open = hidinput_open;
1040                                 input_dev->close = hidinput_close;
1041                                 input_dev->setkeycode = hidinput_setkeycode;
1042                                 input_dev->getkeycode = hidinput_getkeycode;
1043
1044                                 input_dev->name = hid->name;
1045                                 input_dev->phys = hid->phys;
1046                                 input_dev->uniq = hid->uniq;
1047                                 input_dev->id.bustype = hid->bus;
1048                                 input_dev->id.vendor  = hid->vendor;
1049                                 input_dev->id.product = hid->product;
1050                                 input_dev->id.version = hid->version;
1051                                 input_dev->dev.parent = hid->dev;
1052                                 hidinput->input = input_dev;
1053                                 list_add_tail(&hidinput->list, &hid->inputs);
1054                         }
1055
1056                         for (i = 0; i < report->maxfield; i++)
1057                                 for (j = 0; j < report->field[i]->maxusage; j++)
1058                                         hidinput_configure_usage(hidinput, report->field[i],
1059                                                                  report->field[i]->usage + j);
1060
1061                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1062                                 /* This will leave hidinput NULL, so that it
1063                                  * allocates another one if we have more inputs on
1064                                  * the same interface. Some devices (e.g. Happ's
1065                                  * UGCI) cram a lot of unrelated inputs into the
1066                                  * same interface. */
1067                                 hidinput->report = report;
1068                                 input_register_device(hidinput->input);
1069                                 hidinput = NULL;
1070                         }
1071                 }
1072
1073         if (hidinput)
1074                 input_register_device(hidinput->input);
1075
1076         return 0;
1077 }
1078 EXPORT_SYMBOL_GPL(hidinput_connect);
1079
1080 void hidinput_disconnect(struct hid_device *hid)
1081 {
1082         struct hid_input *hidinput, *next;
1083
1084         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1085                 list_del(&hidinput->list);
1086                 input_unregister_device(hidinput->input);
1087                 kfree(hidinput);
1088         }
1089 }
1090 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1091