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 static int hid_apple_fnmode = 1;
  36 module_param_named(pb_fnmode, hid_apple_fnmode, int, 0644);
  37 MODULE_PARM_DESC(pb_fnmode,
  38                 "Mode of fn key on Apple keyboards (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
  39
  40 #define unk     KEY_UNKNOWN
  41
  42 static const unsigned char hid_keyboard[256] = {
  43           0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
  44          50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
  45           4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
  46          27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
  47          65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
  48         105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
  49          72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
  50         191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
  51         115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
  52         122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  53         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  54         unk,unk,unk,unk,unk,unk,179,180,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          29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
  58         150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
  59 };
  60
  61 /* extended mapping for certain Logitech hardware (Logitech cordless desktop LX500) */
  62 #define LOGITECH_EXPANDED_KEYMAP_SIZE 80
  63 static int logitech_expanded_keymap[LOGITECH_EXPANDED_KEYMAP_SIZE] = {
  64           0,216,  0,213,175,156,  0,  0,  0,  0,
  65         144,  0,  0,  0,  0,  0,  0,  0,  0,212,
  66         174,167,152,161,112,  0,  0,  0,154,  0,
  67           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  68           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  69           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  70           0,  0,  0,  0,  0,183,184,185,186,187,
  71         188,189,190,191,192,193,194,  0,  0,  0
  72 };
  73
  74 static const struct {
  75         __s32 x;
  76         __s32 y;
  77 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
  78
  79 #define map_abs(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
  80 #define map_rel(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
  81 #define map_key(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
  82 #define map_led(c)      hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
  83
  84 #define map_abs_clear(c)        hid_map_usage_clear(hidinput, usage, &bit, \
  85                 &max, EV_ABS, (c))
  86 #define map_key_clear(c)        hid_map_usage_clear(hidinput, usage, &bit, \
  87                 &max, EV_KEY, (c))
  88
  89 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
  90
  91 struct hidinput_key_translation {
  92         u16 from;
  93         u16 to;
  94         u8 flags;
  95 };
  96
  97 #define APPLE_FLAG_FKEY 0x01
  98
  99 static struct hidinput_key_translation apple_fn_keys[] = {
 100         { KEY_BACKSPACE, KEY_DELETE },
 101         { KEY_F1,       KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
 102         { KEY_F2,       KEY_BRIGHTNESSUP,   APPLE_FLAG_FKEY },
 103         { KEY_F3,       KEY_FN_F5,          APPLE_FLAG_FKEY }, /* Exposé */
 104         { KEY_F4,       KEY_FN_F4,          APPLE_FLAG_FKEY }, /* Dashboard */
 105         { KEY_F5,       KEY_KBDILLUMDOWN,   APPLE_FLAG_FKEY },
 106         { KEY_F6,       KEY_KBDILLUMUP,     APPLE_FLAG_FKEY },
 107         { KEY_F7,       KEY_PREVIOUSSONG,   APPLE_FLAG_FKEY },
 108         { KEY_F8,       KEY_PLAYPAUSE,      APPLE_FLAG_FKEY },
 109         { KEY_F9,       KEY_NEXTSONG,       APPLE_FLAG_FKEY },
 110         { KEY_F10,      KEY_MUTE,           APPLE_FLAG_FKEY },
 111         { KEY_F11,      KEY_VOLUMEDOWN,     APPLE_FLAG_FKEY },
 112         { KEY_F12,      KEY_VOLUMEUP,       APPLE_FLAG_FKEY },
 113         { KEY_UP,       KEY_PAGEUP },
 114         { KEY_DOWN,     KEY_PAGEDOWN },
 115         { KEY_LEFT,     KEY_HOME },
 116         { KEY_RIGHT,    KEY_END },
 117         { }
 118 };
 119
 120 static struct hidinput_key_translation powerbook_fn_keys[] = {
 121         { KEY_BACKSPACE, KEY_DELETE },
 122         { KEY_F1,       KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
 123         { KEY_F2,       KEY_BRIGHTNESSUP,       APPLE_FLAG_FKEY },
 124         { KEY_F3,       KEY_MUTE,               APPLE_FLAG_FKEY },
 125         { KEY_F4,       KEY_VOLUMEDOWN,         APPLE_FLAG_FKEY },
 126         { KEY_F5,       KEY_VOLUMEUP,           APPLE_FLAG_FKEY },
 127         { KEY_F6,       KEY_NUMLOCK,            APPLE_FLAG_FKEY },
 128         { KEY_F7,       KEY_SWITCHVIDEOMODE,    APPLE_FLAG_FKEY },
 129         { KEY_F8,       KEY_KBDILLUMTOGGLE,     APPLE_FLAG_FKEY },
 130         { KEY_F9,       KEY_KBDILLUMDOWN,       APPLE_FLAG_FKEY },
 131         { KEY_F10,      KEY_KBDILLUMUP,         APPLE_FLAG_FKEY },
 132         { KEY_UP,       KEY_PAGEUP },
 133         { KEY_DOWN,     KEY_PAGEDOWN },
 134         { KEY_LEFT,     KEY_HOME },
 135         { KEY_RIGHT,    KEY_END },
 136         { }
 137 };
 138
 139 static struct hidinput_key_translation powerbook_numlock_keys[] = {
 140         { KEY_J,        KEY_KP1 },
 141         { KEY_K,        KEY_KP2 },
 142         { KEY_L,        KEY_KP3 },
 143         { KEY_U,        KEY_KP4 },
 144         { KEY_I,        KEY_KP5 },
 145         { KEY_O,        KEY_KP6 },
 146         { KEY_7,        KEY_KP7 },
 147         { KEY_8,        KEY_KP8 },
 148         { KEY_9,        KEY_KP9 },
 149         { KEY_M,        KEY_KP0 },
 150         { KEY_DOT,      KEY_KPDOT },
 151         { KEY_SLASH,    KEY_KPPLUS },
 152         { KEY_SEMICOLON, KEY_KPMINUS },
 153         { KEY_P,        KEY_KPASTERISK },
 154         { KEY_MINUS,    KEY_KPEQUAL },
 155         { KEY_0,        KEY_KPSLASH },
 156         { KEY_F6,       KEY_NUMLOCK },
 157         { KEY_KPENTER,  KEY_KPENTER },
 158         { KEY_BACKSPACE, KEY_BACKSPACE },
 159         { }
 160 };
 161
 162 static struct hidinput_key_translation apple_iso_keyboard[] = {
 163         { KEY_GRAVE,    KEY_102ND },
 164         { KEY_102ND,    KEY_GRAVE },
 165         { }
 166 };
 167
 168 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
 169 {
 170         struct hidinput_key_translation *trans;
 171
 172         /* Look for the translation */
 173         for (trans = table; trans->from; trans++)
 174                 if (trans->from == from)
 175                         return trans;
 176
 177         return NULL;
 178 }
 179
 180 int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 181                 struct hid_usage *usage, __s32 value)
 182 {
 183         struct hidinput_key_translation *trans;
 184
 185         if (usage->code == KEY_FN) {
 186                 if (value) hid->quirks |=  HID_QUIRK_APPLE_FN_ON;
 187                 else       hid->quirks &= ~HID_QUIRK_APPLE_FN_ON;
 188
 189                 input_event(input, usage->type, usage->code, value);
 190
 191                 return 1;
 192         }
 193
 194         if (hid_apple_fnmode) {
 195                 int do_translate;
 196
 197                 trans = find_translation((hid->product < 0x220 ||
 198                                           hid->product >= 0x300) ?
 199                                          powerbook_fn_keys : apple_fn_keys,
 200                                          usage->code);
 201                 if (trans) {
 202                         if (test_bit(usage->code, hid->apple_pressed_fn))
 203                                 do_translate = 1;
 204                         else if (trans->flags & APPLE_FLAG_FKEY)
 205                                 do_translate =
 206                                         (hid_apple_fnmode == 2 &&  (hid->quirks & HID_QUIRK_APPLE_FN_ON)) ||
 207                                         (hid_apple_fnmode == 1 && !(hid->quirks & HID_QUIRK_APPLE_FN_ON));
 208                         else
 209                                 do_translate = (hid->quirks & HID_QUIRK_APPLE_FN_ON);
 210
 211                         if (do_translate) {
 212                                 if (value)
 213                                         set_bit(usage->code, hid->apple_pressed_fn);
 214                                 else
 215                                         clear_bit(usage->code, hid->apple_pressed_fn);
 216
 217                                 input_event(input, usage->type, trans->to, value);
 218
 219                                 return 1;
 220                         }
 221                 }
 222
 223                 if (hid->quirks & HID_QUIRK_APPLE_NUMLOCK_EMULATION && (
 224                                 test_bit(usage->code, hid->pb_pressed_numlock) ||
 225                                 test_bit(LED_NUML, input->led))) {
 226                         trans = find_translation(powerbook_numlock_keys, usage->code);
 227
 228                         if (trans) {
 229                                 if (value)
 230                                         set_bit(usage->code, hid->pb_pressed_numlock);
 231                                 else
 232                                         clear_bit(usage->code, hid->pb_pressed_numlock);
 233
 234                                 input_event(input, usage->type, trans->to, value);
 235                         }
 236
 237                         return 1;
 238                 }
 239         }
 240
 241         if (hid->quirks & HID_QUIRK_APPLE_ISO_KEYBOARD) {
 242                 trans = find_translation(apple_iso_keyboard, usage->code);
 243                 if (trans) {
 244                         input_event(input, usage->type, trans->to, value);
 245                         return 1;
 246                 }
 247         }
 248
 249         return 0;
 250 }
 251
 252 static void hidinput_apple_setup(struct input_dev *input)
 253 {
 254         struct hidinput_key_translation *trans;
 255
 256         set_bit(KEY_NUMLOCK, input->keybit);
 257
 258         /* Enable all needed keys */
 259         for (trans = apple_fn_keys; trans->from; trans++)
 260                 set_bit(trans->to, input->keybit);
 261
 262         for (trans = powerbook_fn_keys; trans->from; trans++)
 263                 set_bit(trans->to, input->keybit);
 264
 265         for (trans = powerbook_numlock_keys; trans->from; trans++)
 266                 set_bit(trans->to, input->keybit);
 267
 268         for (trans = apple_iso_keyboard; trans->from; trans++)
 269                 set_bit(trans->to, input->keybit);
 270
 271 }
 272 #else
 273 inline int hidinput_apple_event(struct hid_device *hid,
 274                                        struct input_dev *input,
 275                                        struct hid_usage *usage, __s32 value)
 276 {
 277         return 0;
 278 }
 279
 280 static inline void hidinput_apple_setup(struct input_dev *input)
 281 {
 282 }
 283 #endif
 284
 285 static inline int match_scancode(int code, int scancode)
 286 {
 287         if (scancode == 0)
 288                 return 1;
 289         return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
 290 }
 291
 292 static inline int match_keycode(int code, int keycode)
 293 {
 294         if (keycode == 0)
 295                 return 1;
 296         return (code == keycode);
 297 }
 298
 299 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
 300                 int scancode, int keycode)
 301 {
 302         int i, j, k;
 303         struct hid_report *report;
 304         struct hid_usage *usage;
 305
 306         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
 307                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 308                         for (i = 0; i < report->maxfield; i++) {
 309                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
 310                                         usage = report->field[i]->usage + j;
 311                                         if (usage->type == EV_KEY &&
 312                                                 match_scancode(usage->hid, scancode) &&
 313                                                 match_keycode(usage->code, keycode))
 314                                                 return usage;
 315                                 }
 316                         }
 317                 }
 318         }
 319         return NULL;
 320 }
 321
 322 static int hidinput_getkeycode(struct input_dev *dev, int scancode,
 323                                 int *keycode)
 324 {
 325         struct hid_device *hid = input_get_drvdata(dev);
 326         struct hid_usage *usage;
 327
 328         usage = hidinput_find_key(hid, scancode, 0);
 329         if (usage) {
 330                 *keycode = usage->code;
 331                 return 0;
 332         }
 333         return -EINVAL;
 334 }
 335
 336 static int hidinput_setkeycode(struct input_dev *dev, int scancode,
 337                                 int keycode)
 338 {
 339         struct hid_device *hid = input_get_drvdata(dev);
 340         struct hid_usage *usage;
 341         int old_keycode;
 342
 343         if (keycode < 0 || keycode > KEY_MAX)
 344                 return -EINVAL;
 345
 346         usage = hidinput_find_key(hid, scancode, 0);
 347         if (usage) {
 348                 old_keycode = usage->code;
 349                 usage->code = keycode;
 350
 351                 clear_bit(old_keycode, dev->keybit);
 352                 set_bit(usage->code, dev->keybit);
 353                 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
 354                 /* Set the keybit for the old keycode if the old keycode is used
 355                  * by another key */
 356                 if (hidinput_find_key (hid, 0, old_keycode))
 357                         set_bit(old_keycode, dev->keybit);
 358
 359                 return 0;
 360         }
 361
 362         return -EINVAL;
 363 }
 364
 365
 366 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 367                                      struct hid_usage *usage)
 368 {
 369         struct input_dev *input = hidinput->input;
 370         struct hid_device *device = input_get_drvdata(input);
 371         int max = 0, code, ret;
 372         unsigned long *bit = NULL;
 373
 374         field->hidinput = hidinput;
 375
 376         dbg_hid("Mapping: ");
 377         hid_resolv_usage(usage->hid);
 378         dbg_hid_line(" ---> ");
 379
 380         if (field->flags & HID_MAIN_ITEM_CONSTANT)
 381                 goto ignore;
 382
 383         /* only LED usages are supported in output fields */
 384         if (field->report_type == HID_OUTPUT_REPORT &&
 385                         (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
 386                 dbg_hid_line(" [non-LED output field] ");
 387                 goto ignore;
 388         }
 389
 390         /* handle input mappings for quirky devices */
 391         ret = hidinput_mapping_quirks(usage, hidinput, &bit, &max);
 392         if (ret)
 393                 goto mapped;
 394
 395         if (device->driver->input_mapping) {
 396                 int ret = device->driver->input_mapping(device, hidinput, field,
 397                                 usage, &bit, &max);
 398                 if (ret > 0)
 399                         goto mapped;
 400                 if (ret < 0)
 401                         goto ignore;
 402         }
 403
 404         switch (usage->hid & HID_USAGE_PAGE) {
 405
 406                 case HID_UP_UNDEFINED:
 407                         goto ignore;
 408
 409                 case HID_UP_KEYBOARD:
 410
 411                         set_bit(EV_REP, input->evbit);
 412
 413                         if ((usage->hid & HID_USAGE) < 256) {
 414                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 415                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 416                         } else
 417                                 map_key(KEY_UNKNOWN);
 418
 419                         break;
 420
 421                 case HID_UP_BUTTON:
 422
 423                         code = ((usage->hid - 1) & 0xf);
 424
 425                         switch (field->application) {
 426                                 case HID_GD_MOUSE:
 427                                 case HID_GD_POINTER:  code += 0x110; break;
 428                                 case HID_GD_JOYSTICK: code += 0x120; break;
 429                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 430                                 default:
 431                                         switch (field->physical) {
 432                                                 case HID_GD_MOUSE:
 433                                                 case HID_GD_POINTER:  code += 0x110; break;
 434                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 435                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 436                                                 default:              code += 0x100;
 437                                         }
 438                         }
 439
 440                         /* Special handling for Logitech Cordless Desktop */
 441                         if (field->application != HID_GD_MOUSE) {
 442                                 if (device->quirks & HID_QUIRK_LOGITECH_EXPANDED_KEYMAP) {
 443                                         int hid = usage->hid & HID_USAGE;
 444                                         if (hid < LOGITECH_EXPANDED_KEYMAP_SIZE && logitech_expanded_keymap[hid] != 0)
 445                                                 code = logitech_expanded_keymap[hid];
 446                                 }
 447                         } else {
 448                                 if (device->quirks & HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL) {
 449                                         int hid = usage->hid & HID_USAGE;
 450                                         if (hid == 7 || hid == 8)
 451                                                 goto ignore;
 452                                 }
 453                         }
 454
 455                         map_key(code);
 456                         break;
 457
 458
 459                 case HID_UP_SIMULATION:
 460
 461                         switch (usage->hid & 0xffff) {
 462                                 case 0xba: map_abs(ABS_RUDDER);   break;
 463                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 464                                 case 0xc4: map_abs(ABS_GAS);      break;
 465                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 466                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 467                                 default:   goto ignore;
 468                         }
 469                         break;
 470
 471                 case HID_UP_GENDESK:
 472
 473                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 474                                 switch (usage->hid & 0xf) {
 475                                         case 0x1: map_key_clear(KEY_POWER);  break;
 476                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 477                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 478                                         default: goto unknown;
 479                                 }
 480                                 break;
 481                         }
 482
 483                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 484                                 switch (usage->hid) {
 485                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 486                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 487                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 488                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 489                                         default: goto unknown;
 490                                 }
 491                                 if (field->dpad) {
 492                                         map_abs(field->dpad);
 493                                         goto ignore;
 494                                 }
 495                                 map_abs(ABS_HAT0X);
 496                                 break;
 497                         }
 498
 499                         switch (usage->hid) {
 500
 501                                 /* These usage IDs map directly to the usage codes. */
 502                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 503                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 504                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 505                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 506                                                 map_rel(usage->hid & 0xf);
 507                                         else
 508                                                 map_abs(usage->hid & 0xf);
 509                                         break;
 510
 511                                 case HID_GD_HATSWITCH:
 512                                         usage->hat_min = field->logical_minimum;
 513                                         usage->hat_max = field->logical_maximum;
 514                                         map_abs(ABS_HAT0X);
 515                                         break;
 516
 517                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 518                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 519
 520                                 default: goto unknown;
 521                         }
 522
 523                         break;
 524
 525                 case HID_UP_LED:
 526
 527                         switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
 528                                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
 529                                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
 530                                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
 531                                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
 532                                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
 533                                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
 534                                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
 535                                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
 536                                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
 537                                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
 538                                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
 539
 540                                 default: goto ignore;
 541                         }
 542                         break;
 543
 544                 case HID_UP_DIGITIZER:
 545
 546                         switch (usage->hid & 0xff) {
 547
 548                                 case 0x30: /* TipPressure */
 549                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 550                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 551                                                 set_bit(EV_KEY, input->evbit);
 552                                                 set_bit(BTN_TOUCH, input->keybit);
 553                                         }
 554
 555                                         map_abs_clear(ABS_PRESSURE);
 556                                         break;
 557
 558                                 case 0x32: /* InRange */
 559                                         switch (field->physical & 0xff) {
 560                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 561                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 562                                                 default: map_key(BTN_TOOL_PEN); break;
 563                                         }
 564                                         break;
 565
 566                                 case 0x3c: /* Invert */
 567                                         map_key_clear(BTN_TOOL_RUBBER);
 568                                         break;
 569
 570                                 case 0x33: /* Touch */
 571                                 case 0x42: /* TipSwitch */
 572                                 case 0x43: /* TipSwitch2 */
 573                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 574                                         map_key_clear(BTN_TOUCH);
 575                                         break;
 576
 577                                 case 0x44: /* BarrelSwitch */
 578                                         map_key_clear(BTN_STYLUS);
 579                                         break;
 580
 581                                 default:  goto unknown;
 582                         }
 583                         break;
 584
 585                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 586
 587                         switch (usage->hid & HID_USAGE) {
 588                                 case 0x000: goto ignore;
 589                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 590                                 case 0x036: map_key_clear(BTN_MISC);            break;
 591
 592                                 case 0x040: map_key_clear(KEY_MENU);            break;
 593                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 594
 595                                 case 0x083: map_key_clear(KEY_LAST);            break;
 596                                 case 0x088: map_key_clear(KEY_PC);              break;
 597                                 case 0x089: map_key_clear(KEY_TV);              break;
 598                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 599                                 case 0x08b: map_key_clear(KEY_DVD);             break;
 600                                 case 0x08c: map_key_clear(KEY_PHONE);           break;
 601                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 602                                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
 603                                 case 0x08f: map_key_clear(KEY_GAMES);           break;
 604                                 case 0x090: map_key_clear(KEY_MEMO);            break;
 605                                 case 0x091: map_key_clear(KEY_CD);              break;
 606                                 case 0x092: map_key_clear(KEY_VCR);             break;
 607                                 case 0x093: map_key_clear(KEY_TUNER);           break;
 608                                 case 0x094: map_key_clear(KEY_EXIT);            break;
 609                                 case 0x095: map_key_clear(KEY_HELP);            break;
 610                                 case 0x096: map_key_clear(KEY_TAPE);            break;
 611                                 case 0x097: map_key_clear(KEY_TV2);             break;
 612                                 case 0x098: map_key_clear(KEY_SAT);             break;
 613                                 case 0x09a: map_key_clear(KEY_PVR);             break;
 614
 615                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 616                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 617                                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
 618
 619                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 620                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 621                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 622                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 623                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 624                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 625                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 626                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 627                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 628                                 case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT);    break;
 629
 630                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 631                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 632                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 633                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 634                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 635                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 636
 637                                 case 0x182: map_key_clear(KEY_BOOKMARKS);       break;
 638                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 639                                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
 640                                 case 0x185: map_key_clear(KEY_EDITOR);          break;
 641                                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
 642                                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
 643                                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
 644                                 case 0x189: map_key_clear(KEY_DATABASE);        break;
 645                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 646                                 case 0x18b: map_key_clear(KEY_NEWS);            break;
 647                                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
 648                                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
 649                                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
 650                                 case 0x191: map_key_clear(KEY_FINANCE);         break;
 651                                 case 0x192: map_key_clear(KEY_CALC);            break;
 652                                 case 0x194: map_key_clear(KEY_FILE);            break;
 653                                 case 0x196: map_key_clear(KEY_WWW);             break;
 654                                 case 0x19c: map_key_clear(KEY_LOGOFF);          break;
 655                                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
 656                                 case 0x1a6: map_key_clear(KEY_HELP);            break;
 657                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 658                                 case 0x1ab: map_key_clear(KEY_SPELLCHECK);      break;
 659                                 case 0x1b6: map_key_clear(KEY_MEDIA);           break;
 660                                 case 0x1b7: map_key_clear(KEY_SOUND);           break;
 661                                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
 662                                 case 0x1bd: map_key_clear(KEY_INFO);            break;
 663                                 case 0x201: map_key_clear(KEY_NEW);             break;
 664                                 case 0x202: map_key_clear(KEY_OPEN);            break;
 665                                 case 0x203: map_key_clear(KEY_CLOSE);           break;
 666                                 case 0x204: map_key_clear(KEY_EXIT);            break;
 667                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 668                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 669                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 670                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 671                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 672                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 673                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 674                                 case 0x21f: map_key_clear(KEY_FIND);            break;
 675                                 case 0x221: map_key_clear(KEY_SEARCH);          break;
 676                                 case 0x222: map_key_clear(KEY_GOTO);            break;
 677                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 678                                 case 0x224: map_key_clear(KEY_BACK);            break;
 679                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 680                                 case 0x226: map_key_clear(KEY_STOP);            break;
 681                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 682                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 683                                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
 684                                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
 685                                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
 686                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 687                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 688                                 case 0x238: map_rel(REL_HWHEEL);                break;
 689                                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
 690                                 case 0x279: map_key_clear(KEY_REDO);            break;
 691
 692                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 693                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 694                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 695
 696                                 default:    goto ignore;
 697                         }
 698                         break;
 699
 700                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 701
 702                         set_bit(EV_REP, input->evbit);
 703                         switch (usage->hid & HID_USAGE) {
 704                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 705                                 case 0x070: map_key_clear(KEY_HP);              break;
 706                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 707                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 708                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 709                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 710                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 711                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 712                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 713                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 714                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 715                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 716                                 default:    goto ignore;
 717                         }
 718                         break;
 719
 720                 case HID_UP_MSVENDOR:
 721
 722                         goto ignore;
 723
 724                 case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
 725
 726                         set_bit(EV_REP, input->evbit);
 727                         switch(usage->hid & HID_USAGE) {
 728                                 case 0x003:
 729                                         /* The fn key on Apple USB keyboards */
 730                                         map_key_clear(KEY_FN);
 731                                         hidinput_apple_setup(input);
 732                                         break;
 733
 734                                 default:    goto ignore;
 735                         }
 736                         break;
 737
 738                 case HID_UP_LOGIVENDOR:
 739
 740                         goto ignore;
 741
 742                 case HID_UP_PID:
 743
 744                         switch(usage->hid & HID_USAGE) {
 745                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 746                                 default: goto ignore;
 747                         }
 748                         break;
 749
 750                 default:
 751                 unknown:
 752                         if (field->report_size == 1) {
 753                                 if (field->report->type == HID_OUTPUT_REPORT) {
 754                                         map_led(LED_MISC);
 755                                         break;
 756                                 }
 757                                 map_key(BTN_MISC);
 758                                 break;
 759                         }
 760                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 761                                 map_rel(REL_MISC);
 762                                 break;
 763                         }
 764                         map_abs(ABS_MISC);
 765                         break;
 766         }
 767
 768 mapped:
 769         if (device->driver->input_mapped && device->driver->input_mapped(device,
 770                                 hidinput, field, usage, &bit, &max) < 0)
 771                 goto ignore;
 772
 773         if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
 774                 if (usage->hid == HID_GD_Z)
 775                         map_rel(REL_HWHEEL);
 776                 else if (usage->code == BTN_1)
 777                         map_key(BTN_2);
 778                 else if (usage->code == BTN_2)
 779                         map_key(BTN_1);
 780         }
 781
 782         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5 |
 783                         HID_QUIRK_2WHEEL_MOUSE_HACK_B8)) && (usage->type == EV_REL) &&
 784                         (usage->code == REL_WHEEL))
 785                 set_bit(REL_HWHEEL, bit);
 786
 787         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 788                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 789                 goto ignore;
 790
 791         if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
 792                 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
 793                 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
 794
 795         set_bit(usage->type, input->evbit);
 796
 797         if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
 798                         (usage->type == EV_KEY ||
 799                          usage->type == EV_REL ||
 800                          usage->type == EV_ABS))
 801                 clear_bit(usage->code, bit);
 802
 803         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 804                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 805
 806         if (usage->code > max)
 807                 goto ignore;
 808
 809
 810         if (usage->type == EV_ABS) {
 811
 812                 int a = field->logical_minimum;
 813                 int b = field->logical_maximum;
 814
 815                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 816                         a = field->logical_minimum = 0;
 817                         b = field->logical_maximum = 255;
 818                 }
 819
 820                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 821                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 822                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 823
 824         }
 825
 826         if (usage->type == EV_ABS &&
 827             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 828                 int i;
 829                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 830                         input_set_abs_params(input, i, -1, 1, 0, 0);
 831                         set_bit(i, input->absbit);
 832                 }
 833                 if (usage->hat_dir && !field->dpad)
 834                         field->dpad = usage->code;
 835         }
 836
 837         /* for those devices which produce Consumer volume usage as relative,
 838          * we emulate pressing volumeup/volumedown appropriate number of times
 839          * in hidinput_hid_event()
 840          */
 841         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 842                         (usage->code == ABS_VOLUME)) {
 843                 set_bit(KEY_VOLUMEUP, input->keybit);
 844                 set_bit(KEY_VOLUMEDOWN, input->keybit);
 845         }
 846
 847         if (usage->type == EV_KEY) {
 848                 set_bit(EV_MSC, input->evbit);
 849                 set_bit(MSC_SCAN, input->mscbit);
 850         }
 851
 852         hid_resolv_event(usage->type, usage->code);
 853
 854         dbg_hid_line("\n");
 855
 856         return;
 857
 858 ignore:
 859         dbg_hid_line("IGNORED\n");
 860         return;
 861 }
 862
 863 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 864 {
 865         struct input_dev *input;
 866         unsigned *quirks = &hid->quirks;
 867
 868         if (!field->hidinput)
 869                 return;
 870
 871         input = field->hidinput->input;
 872
 873         if (!usage->type)
 874                 return;
 875
 876         /* handle input events for quirky devices */
 877         if (hidinput_event_quirks(hid, field, usage, value))
 878                 return;
 879
 880         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 881                 int hat_dir = usage->hat_dir;
 882                 if (!hat_dir)
 883                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 884                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 885                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 886                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 887                 return;
 888         }
 889
 890         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 891                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 892                 return;
 893         }
 894
 895         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 896                 if (value) {
 897                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 898                         return;
 899                 }
 900                 input_event(input, usage->type, usage->code, 0);
 901                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 902                 return;
 903         }
 904
 905         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 906                 int a = field->logical_minimum;
 907                 int b = field->logical_maximum;
 908                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 909         }
 910
 911         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 912                 dbg_hid("Maximum Effects - %d\n",value);
 913                 return;
 914         }
 915
 916         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 917                 dbg_hid("PID Pool Report\n");
 918                 return;
 919         }
 920
 921         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 922                 return;
 923
 924         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 925                         (usage->code == ABS_VOLUME)) {
 926                 int count = abs(value);
 927                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
 928                 int i;
 929
 930                 for (i = 0; i < count; i++) {
 931                         input_event(input, EV_KEY, direction, 1);
 932                         input_sync(input);
 933                         input_event(input, EV_KEY, direction, 0);
 934                         input_sync(input);
 935                 }
 936                 return;
 937         }
 938
 939         /* report the usage code as scancode if the key status has changed */
 940         if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
 941                 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
 942
 943         input_event(input, usage->type, usage->code, value);
 944
 945         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 946                 input_event(input, usage->type, usage->code, 0);
 947 }
 948
 949 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 950 {
 951         struct hid_input *hidinput;
 952
 953         list_for_each_entry(hidinput, &hid->inputs, list)
 954                 input_sync(hidinput->input);
 955 }
 956 EXPORT_SYMBOL_GPL(hidinput_report_event);
 957
 958 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
 959 {
 960         struct hid_report *report;
 961         int i, j;
 962
 963         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
 964                 for (i = 0; i < report->maxfield; i++) {
 965                         *field = report->field[i];
 966                         for (j = 0; j < (*field)->maxusage; j++)
 967                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
 968                                         return j;
 969                 }
 970         }
 971         return -1;
 972 }
 973 EXPORT_SYMBOL_GPL(hidinput_find_field);
 974
 975 static int hidinput_open(struct input_dev *dev)
 976 {
 977         struct hid_device *hid = input_get_drvdata(dev);
 978
 979         return hid->ll_driver->open(hid);
 980 }
 981
 982 static void hidinput_close(struct input_dev *dev)
 983 {
 984         struct hid_device *hid = input_get_drvdata(dev);
 985
 986         hid->ll_driver->close(hid);
 987 }
 988
 989 /*
 990  * Register the input device; print a message.
 991  * Configure the input layer interface
 992  * Read all reports and initialize the absolute field values.
 993  */
 994
 995 int hidinput_connect(struct hid_device *hid)
 996 {
 997         struct hid_report *report;
 998         struct hid_input *hidinput = NULL;
 999         struct input_dev *input_dev;
1000         int i, j, k;
1001         int max_report_type = HID_OUTPUT_REPORT;
1002
1003         if (hid->quirks & HID_QUIRK_IGNORE_HIDINPUT)
1004                 return -1;
1005
1006         INIT_LIST_HEAD(&hid->inputs);
1007
1008         for (i = 0; i < hid->maxcollection; i++)
1009                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
1010                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
1011                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
1012                                 break;
1013
1014         if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
1015                 return -1;
1016
1017         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1018                 max_report_type = HID_INPUT_REPORT;
1019
1020         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
1021                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1022
1023                         if (!report->maxfield)
1024                                 continue;
1025
1026                         if (!hidinput) {
1027                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1028                                 input_dev = input_allocate_device();
1029                                 if (!hidinput || !input_dev) {
1030                                         kfree(hidinput);
1031                                         input_free_device(input_dev);
1032                                         err_hid("Out of memory during hid input probe");
1033                                         goto out_unwind;
1034                                 }
1035
1036                                 input_set_drvdata(input_dev, hid);
1037                                 input_dev->event =
1038                                         hid->ll_driver->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.parent;
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                                 if (input_register_device(hidinput->input))
1069                                         goto out_cleanup;
1070                                 hidinput = NULL;
1071                         }
1072                 }
1073
1074         if (hidinput && input_register_device(hidinput->input))
1075                 goto out_cleanup;
1076
1077         return 0;
1078
1079 out_cleanup:
1080         input_free_device(hidinput->input);
1081         kfree(hidinput);
1082 out_unwind:
1083         /* unwind the ones we already registered */
1084         hidinput_disconnect(hid);
1085
1086         return -1;
1087 }
1088 EXPORT_SYMBOL_GPL(hidinput_connect);
1089
1090 void hidinput_disconnect(struct hid_device *hid)
1091 {
1092         struct hid_input *hidinput, *next;
1093
1094         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1095                 list_del(&hidinput->list);
1096                 input_unregister_device(hidinput->input);
1097                 kfree(hidinput);
1098         }
1099 }
1100 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1101