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,179,180,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 /* extended mapping for certain Logitech hardware (Logitech cordless desktop LX500) */
  64 #define LOGITECH_EXPANDED_KEYMAP_SIZE 80
  65 static int logitech_expanded_keymap[LOGITECH_EXPANDED_KEYMAP_SIZE] = {
  66           0,216,  0,213,175,156,  0,  0,  0,  0,
  67         144,  0,  0,  0,  0,  0,  0,  0,  0,212,
  68         174,167,152,161,112,  0,  0,  0,154,  0,
  69           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  70           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  71           0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  72           0,  0,  0,  0,  0,183,184,185,186,187,
  73         188,189,190,191,192,193,194,  0,  0,  0
  74 };
  75
  76 static const struct {
  77         __s32 x;
  78         __s32 y;
  79 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
  80
  81 #define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
  82 #define map_rel(c)      do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
  83 #define map_key(c)      do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
  84 #define map_led(c)      do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
  85
  86 #define map_abs_clear(c)        do { map_abs(c); clear_bit(c, bit); } while (0)
  87 #define map_key_clear(c)        do { map_key(c); clear_bit(c, bit); } while (0)
  88
  89 /* hardware needing special handling due to colliding MSVENDOR page usages */
  90 #define IS_CHICONY_TACTICAL_PAD(x) (x->vendor == 0x04f2 && device->product == 0x0418)
  91 #define IS_MS_NEK4K(x) (x->vendor == 0x045e && x->product == 0x00db)
  92
  93 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
  94
  95 struct hidinput_key_translation {
  96         u16 from;
  97         u16 to;
  98         u8 flags;
  99 };
 100
 101 #define POWERBOOK_FLAG_FKEY 0x01
 102
 103 static struct hidinput_key_translation powerbook_fn_keys[] = {
 104         { KEY_BACKSPACE, KEY_DELETE },
 105         { KEY_F1,       KEY_BRIGHTNESSDOWN,     POWERBOOK_FLAG_FKEY },
 106         { KEY_F2,       KEY_BRIGHTNESSUP,       POWERBOOK_FLAG_FKEY },
 107         { KEY_F3,       KEY_MUTE,               POWERBOOK_FLAG_FKEY },
 108         { KEY_F4,       KEY_VOLUMEDOWN,         POWERBOOK_FLAG_FKEY },
 109         { KEY_F5,       KEY_VOLUMEUP,           POWERBOOK_FLAG_FKEY },
 110         { KEY_F6,       KEY_NUMLOCK,            POWERBOOK_FLAG_FKEY },
 111         { KEY_F7,       KEY_SWITCHVIDEOMODE,    POWERBOOK_FLAG_FKEY },
 112         { KEY_F8,       KEY_KBDILLUMTOGGLE,     POWERBOOK_FLAG_FKEY },
 113         { KEY_F9,       KEY_KBDILLUMDOWN,       POWERBOOK_FLAG_FKEY },
 114         { KEY_F10,      KEY_KBDILLUMUP,         POWERBOOK_FLAG_FKEY },
 115         { KEY_UP,       KEY_PAGEUP },
 116         { KEY_DOWN,     KEY_PAGEDOWN },
 117         { KEY_LEFT,     KEY_HOME },
 118         { KEY_RIGHT,    KEY_END },
 119         { }
 120 };
 121
 122 static struct hidinput_key_translation powerbook_numlock_keys[] = {
 123         { KEY_J,        KEY_KP1 },
 124         { KEY_K,        KEY_KP2 },
 125         { KEY_L,        KEY_KP3 },
 126         { KEY_U,        KEY_KP4 },
 127         { KEY_I,        KEY_KP5 },
 128         { KEY_O,        KEY_KP6 },
 129         { KEY_7,        KEY_KP7 },
 130         { KEY_8,        KEY_KP8 },
 131         { KEY_9,        KEY_KP9 },
 132         { KEY_M,        KEY_KP0 },
 133         { KEY_DOT,      KEY_KPDOT },
 134         { KEY_SLASH,    KEY_KPPLUS },
 135         { KEY_SEMICOLON, KEY_KPMINUS },
 136         { KEY_P,        KEY_KPASTERISK },
 137         { KEY_MINUS,    KEY_KPEQUAL },
 138         { KEY_0,        KEY_KPSLASH },
 139         { KEY_F6,       KEY_NUMLOCK },
 140         { KEY_KPENTER,  KEY_KPENTER },
 141         { KEY_BACKSPACE, KEY_BACKSPACE },
 142         { }
 143 };
 144
 145 static struct hidinput_key_translation powerbook_iso_keyboard[] = {
 146         { KEY_GRAVE,    KEY_102ND },
 147         { KEY_102ND,    KEY_GRAVE },
 148         { }
 149 };
 150
 151 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
 152 {
 153         struct hidinput_key_translation *trans;
 154
 155         /* Look for the translation */
 156         for (trans = table; trans->from; trans++)
 157                 if (trans->from == from)
 158                         return trans;
 159
 160         return NULL;
 161 }
 162
 163 static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 164                 struct hid_usage *usage, __s32 value)
 165 {
 166         struct hidinput_key_translation *trans;
 167
 168         if (usage->code == KEY_FN) {
 169                 if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
 170                 else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
 171
 172                 input_event(input, usage->type, usage->code, value);
 173
 174                 return 1;
 175         }
 176
 177         if (hid_pb_fnmode) {
 178                 int do_translate;
 179
 180                 trans = find_translation(powerbook_fn_keys, usage->code);
 181                 if (trans) {
 182                         if (test_bit(usage->code, hid->pb_pressed_fn))
 183                                 do_translate = 1;
 184                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
 185                                 do_translate =
 186                                         (hid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
 187                                         (hid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
 188                         else
 189                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
 190
 191                         if (do_translate) {
 192                                 if (value)
 193                                         set_bit(usage->code, hid->pb_pressed_fn);
 194                                 else
 195                                         clear_bit(usage->code, hid->pb_pressed_fn);
 196
 197                                 input_event(input, usage->type, trans->to, value);
 198
 199                                 return 1;
 200                         }
 201                 }
 202
 203                 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
 204                                 test_bit(LED_NUML, input->led)) {
 205                         trans = find_translation(powerbook_numlock_keys, usage->code);
 206
 207                         if (trans) {
 208                                 if (value)
 209                                         set_bit(usage->code, hid->pb_pressed_numlock);
 210                                 else
 211                                         clear_bit(usage->code, hid->pb_pressed_numlock);
 212
 213                                 input_event(input, usage->type, trans->to, value);
 214                         }
 215
 216                         return 1;
 217                 }
 218         }
 219
 220         if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
 221                 trans = find_translation(powerbook_iso_keyboard, usage->code);
 222                 if (trans) {
 223                         input_event(input, usage->type, trans->to, value);
 224                         return 1;
 225                 }
 226         }
 227
 228         return 0;
 229 }
 230
 231 static void hidinput_pb_setup(struct input_dev *input)
 232 {
 233         struct hidinput_key_translation *trans;
 234
 235         set_bit(KEY_NUMLOCK, input->keybit);
 236
 237         /* Enable all needed keys */
 238         for (trans = powerbook_fn_keys; trans->from; trans++)
 239                 set_bit(trans->to, input->keybit);
 240
 241         for (trans = powerbook_numlock_keys; trans->from; trans++)
 242                 set_bit(trans->to, input->keybit);
 243
 244         for (trans = powerbook_iso_keyboard; trans->from; trans++)
 245                 set_bit(trans->to, input->keybit);
 246
 247 }
 248 #else
 249 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 250                 struct hid_usage *usage, __s32 value)
 251 {
 252         return 0;
 253 }
 254
 255 static inline void hidinput_pb_setup(struct input_dev *input)
 256 {
 257 }
 258 #endif
 259
 260 static inline int match_scancode(int code, int scancode)
 261 {
 262         if (scancode == 0)
 263                 return 1;
 264         return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
 265 }
 266
 267 static inline int match_keycode(int code, int keycode)
 268 {
 269         if (keycode == 0)
 270                 return 1;
 271         return (code == keycode);
 272 }
 273
 274 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
 275                 int scancode, int keycode)
 276 {
 277         int i, j, k;
 278         struct hid_report *report;
 279         struct hid_usage *usage;
 280
 281         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
 282                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 283                         for (i = 0; i < report->maxfield; i++) {
 284                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
 285                                         usage = report->field[i]->usage + j;
 286                                         if (usage->type == EV_KEY &&
 287                                                 match_scancode(usage->hid, scancode) &&
 288                                                 match_keycode(usage->code, keycode))
 289                                                 return usage;
 290                                 }
 291                         }
 292                 }
 293         }
 294         return NULL;
 295 }
 296
 297 static int hidinput_getkeycode(struct input_dev *dev, int scancode,
 298                                 int *keycode)
 299 {
 300         struct hid_device *hid = dev->private;
 301         struct hid_usage *usage;
 302
 303         usage = hidinput_find_key(hid, scancode, 0);
 304         if (usage) {
 305                 *keycode = usage->code;
 306                 return 0;
 307         }
 308         return -EINVAL;
 309 }
 310
 311 static int hidinput_setkeycode(struct input_dev *dev, int scancode,
 312                                 int keycode)
 313 {
 314         struct hid_device *hid = dev->private;
 315         struct hid_usage *usage;
 316         int old_keycode;
 317
 318         if (keycode < 0 || keycode > KEY_MAX)
 319                 return -EINVAL;
 320
 321         usage = hidinput_find_key(hid, scancode, 0);
 322         if (usage) {
 323                 old_keycode = usage->code;
 324                 usage->code = keycode;
 325
 326                 clear_bit(old_keycode, dev->keybit);
 327                 set_bit(usage->code, dev->keybit);
 328                 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
 329                 /* Set the keybit for the old keycode if the old keycode is used
 330                  * by another key */
 331                 if (hidinput_find_key (hid, 0, old_keycode))
 332                         set_bit(old_keycode, dev->keybit);
 333
 334                 return 0;
 335         }
 336
 337         return -EINVAL;
 338 }
 339
 340
 341 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 342                                      struct hid_usage *usage)
 343 {
 344         struct input_dev *input = hidinput->input;
 345         struct hid_device *device = input_get_drvdata(input);
 346         int max = 0, code;
 347         unsigned long *bit = NULL;
 348
 349         field->hidinput = hidinput;
 350
 351         dbg_hid("Mapping: ");
 352         hid_resolv_usage(usage->hid);
 353         dbg_hid_line(" ---> ");
 354
 355         if (field->flags & HID_MAIN_ITEM_CONSTANT)
 356                 goto ignore;
 357
 358         /* only LED usages are supported in output fields */
 359         if (field->report_type == HID_OUTPUT_REPORT &&
 360                         (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
 361                 dbg_hid_line(" [non-LED output field] ");
 362                 goto ignore;
 363         }
 364
 365         switch (usage->hid & HID_USAGE_PAGE) {
 366
 367                 case HID_UP_UNDEFINED:
 368                         goto ignore;
 369
 370                 case HID_UP_KEYBOARD:
 371
 372                         set_bit(EV_REP, input->evbit);
 373
 374                         if ((usage->hid & HID_USAGE) < 256) {
 375                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 376                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 377                         } else
 378                                 map_key(KEY_UNKNOWN);
 379
 380                         break;
 381
 382                 case HID_UP_BUTTON:
 383
 384                         code = ((usage->hid - 1) & 0xf);
 385
 386                         switch (field->application) {
 387                                 case HID_GD_MOUSE:
 388                                 case HID_GD_POINTER:  code += 0x110; break;
 389                                 case HID_GD_JOYSTICK: code += 0x120; break;
 390                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 391                                 default:
 392                                         switch (field->physical) {
 393                                                 case HID_GD_MOUSE:
 394                                                 case HID_GD_POINTER:  code += 0x110; break;
 395                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 396                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 397                                                 default:              code += 0x100;
 398                                         }
 399                         }
 400
 401                         /* Special handling for Logitech Cordless Desktop */
 402                         if (field->application != HID_GD_MOUSE) {
 403                                 if (device->quirks & HID_QUIRK_LOGITECH_EXPANDED_KEYMAP) {
 404                                         int hid = usage->hid & HID_USAGE;
 405                                         if (hid < LOGITECH_EXPANDED_KEYMAP_SIZE && logitech_expanded_keymap[hid] != 0)
 406                                                 code = logitech_expanded_keymap[hid];
 407                                 }
 408                         } else {
 409                                 if (device->quirks & HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL) {
 410                                         int hid = usage->hid & HID_USAGE;
 411                                         if (hid == 7 || hid == 8)
 412                                                 goto ignore;
 413                                 }
 414                         }
 415
 416                         map_key(code);
 417                         break;
 418
 419
 420                 case HID_UP_SIMULATION:
 421
 422                         switch (usage->hid & 0xffff) {
 423                                 case 0xba: map_abs(ABS_RUDDER);   break;
 424                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 425                                 case 0xc4: map_abs(ABS_GAS);      break;
 426                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 427                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 428                                 default:   goto ignore;
 429                         }
 430                         break;
 431
 432                 case HID_UP_GENDESK:
 433
 434                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 435                                 switch (usage->hid & 0xf) {
 436                                         case 0x1: map_key_clear(KEY_POWER);  break;
 437                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 438                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 439                                         default: goto unknown;
 440                                 }
 441                                 break;
 442                         }
 443
 444                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 445                                 switch (usage->hid) {
 446                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 447                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 448                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 449                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 450                                         default: goto unknown;
 451                                 }
 452                                 if (field->dpad) {
 453                                         map_abs(field->dpad);
 454                                         goto ignore;
 455                                 }
 456                                 map_abs(ABS_HAT0X);
 457                                 break;
 458                         }
 459
 460                         switch (usage->hid) {
 461
 462                                 /* These usage IDs map directly to the usage codes. */
 463                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 464                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 465                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 466                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 467                                                 map_rel(usage->hid & 0xf);
 468                                         else
 469                                                 map_abs(usage->hid & 0xf);
 470                                         break;
 471
 472                                 case HID_GD_HATSWITCH:
 473                                         usage->hat_min = field->logical_minimum;
 474                                         usage->hat_max = field->logical_maximum;
 475                                         map_abs(ABS_HAT0X);
 476                                         break;
 477
 478                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 479                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 480
 481                                 default: goto unknown;
 482                         }
 483
 484                         break;
 485
 486                 case HID_UP_LED:
 487
 488                         switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
 489                                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
 490                                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
 491                                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
 492                                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
 493                                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
 494                                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
 495                                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
 496                                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
 497                                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
 498                                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
 499                                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
 500
 501                                 default: goto ignore;
 502                         }
 503                         break;
 504
 505                 case HID_UP_DIGITIZER:
 506
 507                         switch (usage->hid & 0xff) {
 508
 509                                 case 0x30: /* TipPressure */
 510                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 511                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 512                                                 set_bit(EV_KEY, input->evbit);
 513                                                 set_bit(BTN_TOUCH, input->keybit);
 514                                         }
 515
 516                                         map_abs_clear(ABS_PRESSURE);
 517                                         break;
 518
 519                                 case 0x32: /* InRange */
 520                                         switch (field->physical & 0xff) {
 521                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 522                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 523                                                 default: map_key(BTN_TOOL_PEN); break;
 524                                         }
 525                                         break;
 526
 527                                 case 0x3c: /* Invert */
 528                                         map_key_clear(BTN_TOOL_RUBBER);
 529                                         break;
 530
 531                                 case 0x33: /* Touch */
 532                                 case 0x42: /* TipSwitch */
 533                                 case 0x43: /* TipSwitch2 */
 534                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 535                                         map_key_clear(BTN_TOUCH);
 536                                         break;
 537
 538                                 case 0x44: /* BarrelSwitch */
 539                                         map_key_clear(BTN_STYLUS);
 540                                         break;
 541
 542                                 default:  goto unknown;
 543                         }
 544                         break;
 545
 546                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 547
 548                         switch (usage->hid & HID_USAGE) {
 549                                 case 0x000: goto ignore;
 550                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 551                                 case 0x036: map_key_clear(BTN_MISC);            break;
 552                                 /*
 553                                  * The next three are reported by Belkin wireless
 554                                  * keyboard (1020:0006). These values are "reserved"
 555                                  * in HUT 1.12.
 556                                  */
 557                                 case 0x03a: map_key_clear(KEY_SOUND);           break;
 558                                 case 0x03b: map_key_clear(KEY_CAMERA);          break;
 559                                 case 0x03c: map_key_clear(KEY_DOCUMENTS);       break;
 560
 561                                 case 0x040: map_key_clear(KEY_MENU);            break;
 562                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 563
 564                                 case 0x083: map_key_clear(KEY_LAST);            break;
 565                                 case 0x088: map_key_clear(KEY_PC);              break;
 566                                 case 0x089: map_key_clear(KEY_TV);              break;
 567                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 568                                 case 0x08b: map_key_clear(KEY_DVD);             break;
 569                                 case 0x08c: map_key_clear(KEY_PHONE);           break;
 570                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 571                                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
 572                                 case 0x08f: map_key_clear(KEY_GAMES);           break;
 573                                 case 0x090: map_key_clear(KEY_MEMO);            break;
 574                                 case 0x091: map_key_clear(KEY_CD);              break;
 575                                 case 0x092: map_key_clear(KEY_VCR);             break;
 576                                 case 0x093: map_key_clear(KEY_TUNER);           break;
 577                                 case 0x094: map_key_clear(KEY_EXIT);            break;
 578                                 case 0x095: map_key_clear(KEY_HELP);            break;
 579                                 case 0x096: map_key_clear(KEY_TAPE);            break;
 580                                 case 0x097: map_key_clear(KEY_TV2);             break;
 581                                 case 0x098: map_key_clear(KEY_SAT);             break;
 582                                 case 0x09a: map_key_clear(KEY_PVR);             break;
 583
 584                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 585                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 586                                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
 587
 588                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 589                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 590                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 591                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 592                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 593                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 594                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 595                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 596                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 597
 598                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 599                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 600                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 601                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 602                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 603                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 604
 605                                 /* reserved in HUT 1.12. Reported on Petalynx remote */
 606                                 case 0x0f6: map_key_clear(KEY_NEXT);            break;
 607                                 case 0x0fa: map_key_clear(KEY_BACK);            break;
 608
 609                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 610                                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
 611                                 case 0x185: map_key_clear(KEY_EDITOR);          break;
 612                                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
 613                                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
 614                                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
 615                                 case 0x189: map_key_clear(KEY_DATABASE);        break;
 616                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 617                                 case 0x18b: map_key_clear(KEY_NEWS);            break;
 618                                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
 619                                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
 620                                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
 621                                 case 0x191: map_key_clear(KEY_FINANCE);         break;
 622                                 case 0x192: map_key_clear(KEY_CALC);            break;
 623                                 case 0x194: map_key_clear(KEY_FILE);            break;
 624                                 case 0x196: map_key_clear(KEY_WWW);             break;
 625                                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
 626                                 case 0x1a6: map_key_clear(KEY_HELP);            break;
 627                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 628                                 case 0x1ab: map_key_clear(KEY_SPELLCHECK);      break;
 629                                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
 630                                 case 0x1bd: map_key_clear(KEY_INFO);            break;
 631                                 case 0x201: map_key_clear(KEY_NEW);             break;
 632                                 case 0x202: map_key_clear(KEY_OPEN);            break;
 633                                 case 0x203: map_key_clear(KEY_CLOSE);           break;
 634                                 case 0x204: map_key_clear(KEY_EXIT);            break;
 635                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 636                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 637                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 638                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 639                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 640                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 641                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 642                                 case 0x21f: map_key_clear(KEY_FIND);            break;
 643                                 case 0x221: map_key_clear(KEY_SEARCH);          break;
 644                                 case 0x222: map_key_clear(KEY_GOTO);            break;
 645                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 646                                 case 0x224: map_key_clear(KEY_BACK);            break;
 647                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 648                                 case 0x226: map_key_clear(KEY_STOP);            break;
 649                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 650                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 651                                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
 652                                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
 653                                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
 654                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 655                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 656                                 case 0x238: map_rel(REL_HWHEEL);                break;
 657                                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
 658                                 case 0x279: map_key_clear(KEY_REDO);            break;
 659
 660                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 661                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 662                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 663
 664                                 /* Reported on a Cherry Cymotion keyboard */
 665                                 case 0x301: map_key_clear(KEY_PROG1);           break;
 666                                 case 0x302: map_key_clear(KEY_PROG2);           break;
 667                                 case 0x303: map_key_clear(KEY_PROG3);           break;
 668
 669                                 /* Reported on certain Logitech wireless keyboards */
 670                                 case 0x1001: map_key_clear(KEY_MESSENGER);      break;
 671                                 case 0x1003: map_key_clear(KEY_SOUND);          break;
 672                                 case 0x1004: map_key_clear(KEY_VIDEO);          break;
 673                                 case 0x1005: map_key_clear(KEY_AUDIO);          break;
 674                                 case 0x100a: map_key_clear(KEY_DOCUMENTS);      break;
 675                                 case 0x1011: map_key_clear(KEY_PREVIOUSSONG);   break;
 676                                 case 0x1012: map_key_clear(KEY_NEXTSONG);       break;
 677                                 case 0x1013: map_key_clear(KEY_CAMERA);         break;
 678                                 case 0x1014: map_key_clear(KEY_MESSENGER);      break;
 679                                 case 0x1015: map_key_clear(KEY_RECORD);         break;
 680                                 case 0x1016: map_key_clear(KEY_PLAYER);         break;
 681                                 case 0x1017: map_key_clear(KEY_EJECTCD);        break;
 682                                 case 0x1018: map_key_clear(KEY_MEDIA);          break;
 683                                 case 0x1019: map_key_clear(KEY_PROG1);          break;
 684                                 case 0x101a: map_key_clear(KEY_PROG2);          break;
 685                                 case 0x101b: map_key_clear(KEY_PROG3);          break;
 686                                 case 0x101f: map_key_clear(KEY_ZOOMIN);         break;
 687                                 case 0x1020: map_key_clear(KEY_ZOOMOUT);        break;
 688                                 case 0x1021: map_key_clear(KEY_ZOOMRESET);      break;
 689                                 case 0x1023: map_key_clear(KEY_CLOSE);          break;
 690                                 case 0x1027: map_key_clear(KEY_MENU);           break;
 691                                 /* this one is marked as 'Rotate' */
 692                                 case 0x1028: map_key_clear(KEY_ANGLE);          break;
 693                                 case 0x1029: map_key_clear(KEY_SHUFFLE);        break;
 694                                 case 0x102a: map_key_clear(KEY_BACK);           break;
 695                                 case 0x102b: map_key_clear(KEY_CYCLEWINDOWS);   break;
 696                                 case 0x1041: map_key_clear(KEY_BATTERY);        break;
 697                                 case 0x1042: map_key_clear(KEY_WORDPROCESSOR);  break;
 698                                 case 0x1043: map_key_clear(KEY_SPREADSHEET);    break;
 699                                 case 0x1044: map_key_clear(KEY_PRESENTATION);   break;
 700                                 case 0x1045: map_key_clear(KEY_UNDO);           break;
 701                                 case 0x1046: map_key_clear(KEY_REDO);           break;
 702                                 case 0x1047: map_key_clear(KEY_PRINT);          break;
 703                                 case 0x1048: map_key_clear(KEY_SAVE);           break;
 704                                 case 0x1049: map_key_clear(KEY_PROG1);          break;
 705                                 case 0x104a: map_key_clear(KEY_PROG2);          break;
 706                                 case 0x104b: map_key_clear(KEY_PROG3);          break;
 707                                 case 0x104c: map_key_clear(KEY_PROG4);          break;
 708
 709                                 default:    goto ignore;
 710                         }
 711                         break;
 712
 713                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 714
 715                         set_bit(EV_REP, input->evbit);
 716                         switch (usage->hid & HID_USAGE) {
 717                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 718                                 case 0x070: map_key_clear(KEY_HP);              break;
 719                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 720                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 721                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 722                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 723                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 724                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 725                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 726                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 727                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 728                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 729                                 default:    goto ignore;
 730                         }
 731                         break;
 732
 733                 case HID_UP_MSVENDOR:
 734
 735                         /* Unfortunately, there are multiple devices which
 736                          * emit usages from MSVENDOR page that require different
 737                          * handling. If this list grows too much in the future,
 738                          * more general handling will have to be introduced here
 739                          * (i.e. another blacklist).
 740                          */
 741
 742                         /* Chicony Chicony KU-0418 tactical pad */
 743                         if (IS_CHICONY_TACTICAL_PAD(device)) {
 744                                 set_bit(EV_REP, input->evbit);
 745                                 switch(usage->hid & HID_USAGE) {
 746                                         case 0xff01: map_key_clear(BTN_1);              break;
 747                                         case 0xff02: map_key_clear(BTN_2);              break;
 748                                         case 0xff03: map_key_clear(BTN_3);              break;
 749                                         case 0xff04: map_key_clear(BTN_4);              break;
 750                                         case 0xff05: map_key_clear(BTN_5);              break;
 751                                         case 0xff06: map_key_clear(BTN_6);              break;
 752                                         case 0xff07: map_key_clear(BTN_7);              break;
 753                                         case 0xff08: map_key_clear(BTN_8);              break;
 754                                         case 0xff09: map_key_clear(BTN_9);              break;
 755                                         case 0xff0a: map_key_clear(BTN_A);              break;
 756                                         case 0xff0b: map_key_clear(BTN_B);              break;
 757                                         default:    goto ignore;
 758                                 }
 759
 760                         /* Microsoft Natural Ergonomic Keyboard 4000 */
 761                         } else if (IS_MS_NEK4K(device)) {
 762                                 switch(usage->hid & HID_USAGE) {
 763                                         case 0xff05:
 764                                                 set_bit(EV_REP, input->evbit);
 765                                                 map_key_clear(BTN_0);
 766                                                 set_bit(BTN_1, input->keybit);
 767                                                 set_bit(BTN_2, input->keybit);
 768                                                 set_bit(BTN_3, input->keybit);
 769                                                 set_bit(BTN_4, input->keybit);
 770                                                 set_bit(BTN_5, input->keybit);
 771                                         default:        goto ignore;
 772                                 }
 773                         } else {
 774                                 goto ignore;
 775                         }
 776                         break;
 777
 778                 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
 779
 780                         set_bit(EV_REP, input->evbit);
 781                         switch(usage->hid & HID_USAGE) {
 782                                 case 0x003:
 783                                         /* The fn key on Apple PowerBooks */
 784                                         map_key_clear(KEY_FN);
 785                                         hidinput_pb_setup(input);
 786                                         break;
 787
 788                                 default:    goto ignore;
 789                         }
 790                         break;
 791
 792                 case HID_UP_LOGIVENDOR:
 793                         set_bit(EV_REP, input->evbit);
 794                         switch(usage->hid & HID_USAGE) {
 795                                 /* Reported on Logitech Ultra X Media Remote */
 796                                 case 0x004: map_key_clear(KEY_AGAIN);           break;
 797                                 case 0x00d: map_key_clear(KEY_HOME);            break;
 798                                 case 0x024: map_key_clear(KEY_SHUFFLE);         break;
 799                                 case 0x025: map_key_clear(KEY_TV);              break;
 800                                 case 0x026: map_key_clear(KEY_MENU);            break;
 801                                 case 0x031: map_key_clear(KEY_AUDIO);           break;
 802                                 case 0x032: map_key_clear(KEY_TEXT);            break;
 803                                 case 0x033: map_key_clear(KEY_LAST);            break;
 804                                 case 0x047: map_key_clear(KEY_MP3);             break;
 805                                 case 0x048: map_key_clear(KEY_DVD);             break;
 806                                 case 0x049: map_key_clear(KEY_MEDIA);           break;
 807                                 case 0x04a: map_key_clear(KEY_VIDEO);           break;
 808                                 case 0x04b: map_key_clear(KEY_ANGLE);           break;
 809                                 case 0x04c: map_key_clear(KEY_LANGUAGE);        break;
 810                                 case 0x04d: map_key_clear(KEY_SUBTITLE);        break;
 811                                 case 0x051: map_key_clear(KEY_RED);             break;
 812                                 case 0x052: map_key_clear(KEY_CLOSE);           break;
 813
 814                                 /* Reported on Petalynx Maxter remote */
 815                                 case 0x05a: map_key_clear(KEY_TEXT);            break;
 816                                 case 0x05b: map_key_clear(KEY_RED);             break;
 817                                 case 0x05c: map_key_clear(KEY_GREEN);           break;
 818                                 case 0x05d: map_key_clear(KEY_YELLOW);          break;
 819                                 case 0x05e: map_key_clear(KEY_BLUE);            break;
 820
 821                                 default:    goto ignore;
 822                         }
 823                         break;
 824
 825                 case HID_UP_PID:
 826
 827                         switch(usage->hid & HID_USAGE) {
 828                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 829                                 default: goto ignore;
 830                         }
 831                         break;
 832
 833                 default:
 834                 unknown:
 835                         if (field->report_size == 1) {
 836                                 if (field->report->type == HID_OUTPUT_REPORT) {
 837                                         map_led(LED_MISC);
 838                                         break;
 839                                 }
 840                                 map_key(BTN_MISC);
 841                                 break;
 842                         }
 843                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 844                                 map_rel(REL_MISC);
 845                                 break;
 846                         }
 847                         map_abs(ABS_MISC);
 848                         break;
 849         }
 850
 851         if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
 852                 if (usage->hid == HID_GD_Z)
 853                         map_rel(REL_HWHEEL);
 854                 else if (usage->code == BTN_1)
 855                         map_key(BTN_2);
 856                 else if (usage->code == BTN_2)
 857                         map_key(BTN_1);
 858         }
 859
 860         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
 861                  (usage->type == EV_REL) && (usage->code == REL_WHEEL))
 862                         set_bit(REL_HWHEEL, bit);
 863
 864         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 865                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 866                 goto ignore;
 867
 868         if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
 869                 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
 870                 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
 871
 872         set_bit(usage->type, input->evbit);
 873
 874         if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
 875                         (usage->type == EV_KEY ||
 876                          usage->type == EV_REL ||
 877                          usage->type == EV_ABS))
 878                 clear_bit(usage->code, bit);
 879
 880         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 881                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 882
 883         if (usage->code > max)
 884                 goto ignore;
 885
 886
 887         if (usage->type == EV_ABS) {
 888
 889                 int a = field->logical_minimum;
 890                 int b = field->logical_maximum;
 891
 892                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 893                         a = field->logical_minimum = 0;
 894                         b = field->logical_maximum = 255;
 895                 }
 896
 897                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 898                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 899                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 900
 901         }
 902
 903         if (usage->type == EV_ABS &&
 904             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 905                 int i;
 906                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 907                         input_set_abs_params(input, i, -1, 1, 0, 0);
 908                         set_bit(i, input->absbit);
 909                 }
 910                 if (usage->hat_dir && !field->dpad)
 911                         field->dpad = usage->code;
 912         }
 913
 914         /* for those devices which produce Consumer volume usage as relative,
 915          * we emulate pressing volumeup/volumedown appropriate number of times
 916          * in hidinput_hid_event()
 917          */
 918         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 919                         (usage->code == ABS_VOLUME)) {
 920                 set_bit(KEY_VOLUMEUP, input->keybit);
 921                 set_bit(KEY_VOLUMEDOWN, input->keybit);
 922         }
 923
 924         if (usage->type == EV_KEY) {
 925                 set_bit(EV_MSC, input->evbit);
 926                 set_bit(MSC_SCAN, input->mscbit);
 927         }
 928
 929         hid_resolv_event(usage->type, usage->code);
 930
 931         dbg_hid_line("\n");
 932
 933         return;
 934
 935 ignore:
 936         dbg_hid_line("IGNORED\n");
 937         return;
 938 }
 939
 940 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 941 {
 942         struct input_dev *input;
 943         int *quirks = &hid->quirks;
 944
 945         if (!field->hidinput)
 946                 return;
 947
 948         input = field->hidinput->input;
 949
 950         if (!usage->type)
 951                 return;
 952
 953         if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 954                 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
 955                 if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 956                 else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 957                 return;
 958         }
 959
 960         if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
 961                 input_event(input, usage->type, usage->code, -value);
 962                 return;
 963         }
 964
 965         if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
 966                 input_event(input, usage->type, REL_HWHEEL, value);
 967                 return;
 968         }
 969
 970         if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
 971                 return;
 972
 973         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 974                 int hat_dir = usage->hat_dir;
 975                 if (!hat_dir)
 976                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 977                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 978                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 979                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 980                 return;
 981         }
 982
 983         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 984                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 985                 return;
 986         }
 987
 988         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 989                 if (value) {
 990                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 991                         return;
 992                 }
 993                 input_event(input, usage->type, usage->code, 0);
 994                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 995                 return;
 996         }
 997
 998         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 999                 int a = field->logical_minimum;
1000                 int b = field->logical_maximum;
1001                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
1002         }
1003
1004         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
1005                 dbg_hid("Maximum Effects - %d\n",value);
1006                 return;
1007         }
1008
1009         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
1010                 dbg_hid("PID Pool Report\n");
1011                 return;
1012         }
1013
1014         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
1015                 return;
1016
1017         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
1018                         (usage->code == ABS_VOLUME)) {
1019                 int count = abs(value);
1020                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
1021                 int i;
1022
1023                 for (i = 0; i < count; i++) {
1024                         input_event(input, EV_KEY, direction, 1);
1025                         input_sync(input);
1026                         input_event(input, EV_KEY, direction, 0);
1027                         input_sync(input);
1028                 }
1029                 return;
1030         }
1031
1032         /* Handling MS NEK4K special buttons */
1033         if (IS_MS_NEK4K(hid) && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
1034                 int key = 0;
1035                 static int last_key = 0;
1036                 switch (value) {
1037                         case 0x01: key = BTN_1; break;
1038                         case 0x02: key = BTN_2; break;
1039                         case 0x04: key = BTN_3; break;
1040                         case 0x08: key = BTN_4; break;
1041                         case 0x10: key = BTN_5; break;
1042                         default: break;
1043                 }
1044                 if (key) {
1045                         input_event(input, usage->type, key, 1);
1046                         last_key = key;
1047                 } else {
1048                         input_event(input, usage->type, last_key, 0);
1049                 }
1050         }
1051         /* report the usage code as scancode if the key status has changed */
1052         if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
1053                 input_event(input, EV_MSC, MSC_SCAN, usage->hid);
1054
1055         input_event(input, usage->type, usage->code, value);
1056
1057         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
1058                 input_event(input, usage->type, usage->code, 0);
1059 }
1060
1061 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1062 {
1063         struct hid_input *hidinput;
1064
1065         list_for_each_entry(hidinput, &hid->inputs, list)
1066                 input_sync(hidinput->input);
1067 }
1068 EXPORT_SYMBOL_GPL(hidinput_report_event);
1069
1070 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1071 {
1072         struct hid_report *report;
1073         int i, j;
1074
1075         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1076                 for (i = 0; i < report->maxfield; i++) {
1077                         *field = report->field[i];
1078                         for (j = 0; j < (*field)->maxusage; j++)
1079                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1080                                         return j;
1081                 }
1082         }
1083         return -1;
1084 }
1085 EXPORT_SYMBOL_GPL(hidinput_find_field);
1086
1087 static int hidinput_open(struct input_dev *dev)
1088 {
1089         struct hid_device *hid = input_get_drvdata(dev);
1090
1091         return hid->hid_open(hid);
1092 }
1093
1094 static void hidinput_close(struct input_dev *dev)
1095 {
1096         struct hid_device *hid = input_get_drvdata(dev);
1097
1098         hid->hid_close(hid);
1099 }
1100
1101 /*
1102  * Register the input device; print a message.
1103  * Configure the input layer interface
1104  * Read all reports and initialize the absolute field values.
1105  */
1106
1107 int hidinput_connect(struct hid_device *hid)
1108 {
1109         struct hid_report *report;
1110         struct hid_input *hidinput = NULL;
1111         struct input_dev *input_dev;
1112         int i, j, k;
1113         int max_report_type = HID_OUTPUT_REPORT;
1114
1115         INIT_LIST_HEAD(&hid->inputs);
1116
1117         for (i = 0; i < hid->maxcollection; i++)
1118                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
1119                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
1120                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
1121                                 break;
1122
1123         if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
1124                 return -1;
1125
1126         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1127                 max_report_type = HID_INPUT_REPORT;
1128
1129         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
1130                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1131
1132                         if (!report->maxfield)
1133                                 continue;
1134
1135                         if (!hidinput) {
1136                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1137                                 input_dev = input_allocate_device();
1138                                 if (!hidinput || !input_dev) {
1139                                         kfree(hidinput);
1140                                         input_free_device(input_dev);
1141                                         err_hid("Out of memory during hid input probe");
1142                                         return -1;
1143                                 }
1144
1145                                 input_set_drvdata(input_dev, hid);
1146                                 input_dev->event = hid->hidinput_input_event;
1147                                 input_dev->open = hidinput_open;
1148                                 input_dev->close = hidinput_close;
1149                                 input_dev->setkeycode = hidinput_setkeycode;
1150                                 input_dev->getkeycode = hidinput_getkeycode;
1151
1152                                 input_dev->name = hid->name;
1153                                 input_dev->phys = hid->phys;
1154                                 input_dev->uniq = hid->uniq;
1155                                 input_dev->id.bustype = hid->bus;
1156                                 input_dev->id.vendor  = hid->vendor;
1157                                 input_dev->id.product = hid->product;
1158                                 input_dev->id.version = hid->version;
1159                                 input_dev->dev.parent = hid->dev;
1160                                 hidinput->input = input_dev;
1161                                 list_add_tail(&hidinput->list, &hid->inputs);
1162                         }
1163
1164                         for (i = 0; i < report->maxfield; i++)
1165                                 for (j = 0; j < report->field[i]->maxusage; j++)
1166                                         hidinput_configure_usage(hidinput, report->field[i],
1167                                                                  report->field[i]->usage + j);
1168
1169                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1170                                 /* This will leave hidinput NULL, so that it
1171                                  * allocates another one if we have more inputs on
1172                                  * the same interface. Some devices (e.g. Happ's
1173                                  * UGCI) cram a lot of unrelated inputs into the
1174                                  * same interface. */
1175                                 hidinput->report = report;
1176                                 input_register_device(hidinput->input);
1177                                 hidinput = NULL;
1178                         }
1179                 }
1180
1181         if (hidinput)
1182                 input_register_device(hidinput->input);
1183
1184         return 0;
1185 }
1186 EXPORT_SYMBOL_GPL(hidinput_connect);
1187
1188 void hidinput_disconnect(struct hid_device *hid)
1189 {
1190         struct hid_input *hidinput, *next;
1191
1192         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1193                 list_del(&hidinput->list);
1194                 input_unregister_device(hidinput->input);
1195                 kfree(hidinput);
1196         }
1197 }
1198 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1199