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   1 /*
   2  * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
   3  *
   4  *  Copyright (c) 2000-2001 Vojtech Pavlik
   5  *  Copyright (c) 2006-2007 Jiri Kosina
   6  *
   7  *  HID to Linux Input mapping
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  24  *
  25  * Should you need to contact me, the author, you can do so either by
  26  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  27  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  28  */
  29
  30 #include <linux/module.h>
  31 #include <linux/slab.h>
  32 #include <linux/kernel.h>
  33
  34 #include <linux/hid.h>
  35 #include <linux/hid-debug.h>
  36
  37 static int hid_pb_fnmode = 1;
  38 module_param_named(pb_fnmode, hid_pb_fnmode, int, 0644);
  39 MODULE_PARM_DESC(pb_fnmode,
  40                 "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
  41
  42 #define unk     KEY_UNKNOWN
  43
  44 static const unsigned char hid_keyboard[256] = {
  45           0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
  46          50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
  47           4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
  48          27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
  49          65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
  50         105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
  51          72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
  52         191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
  53         115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
  54         122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  55         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  56         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  57         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  58         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  59          29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
  60         150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
  61 };
  62
  63 /* 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 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
  90
  91 struct hidinput_key_translation {
  92         u16 from;
  93         u16 to;
  94         u8 flags;
  95 };
  96
  97 #define POWERBOOK_FLAG_FKEY 0x01
  98
  99 static struct hidinput_key_translation powerbook_fn_keys[] = {
 100         { KEY_BACKSPACE, KEY_DELETE },
 101         { KEY_F1,       KEY_BRIGHTNESSDOWN,     POWERBOOK_FLAG_FKEY },
 102         { KEY_F2,       KEY_BRIGHTNESSUP,       POWERBOOK_FLAG_FKEY },
 103         { KEY_F3,       KEY_MUTE,               POWERBOOK_FLAG_FKEY },
 104         { KEY_F4,       KEY_VOLUMEDOWN,         POWERBOOK_FLAG_FKEY },
 105         { KEY_F5,       KEY_VOLUMEUP,           POWERBOOK_FLAG_FKEY },
 106         { KEY_F6,       KEY_NUMLOCK,            POWERBOOK_FLAG_FKEY },
 107         { KEY_F7,       KEY_SWITCHVIDEOMODE,    POWERBOOK_FLAG_FKEY },
 108         { KEY_F8,       KEY_KBDILLUMTOGGLE,     POWERBOOK_FLAG_FKEY },
 109         { KEY_F9,       KEY_KBDILLUMDOWN,       POWERBOOK_FLAG_FKEY },
 110         { KEY_F10,      KEY_KBDILLUMUP,         POWERBOOK_FLAG_FKEY },
 111         { KEY_UP,       KEY_PAGEUP },
 112         { KEY_DOWN,     KEY_PAGEDOWN },
 113         { KEY_LEFT,     KEY_HOME },
 114         { KEY_RIGHT,    KEY_END },
 115         { }
 116 };
 117
 118 static struct hidinput_key_translation powerbook_numlock_keys[] = {
 119         { KEY_J,        KEY_KP1 },
 120         { KEY_K,        KEY_KP2 },
 121         { KEY_L,        KEY_KP3 },
 122         { KEY_U,        KEY_KP4 },
 123         { KEY_I,        KEY_KP5 },
 124         { KEY_O,        KEY_KP6 },
 125         { KEY_7,        KEY_KP7 },
 126         { KEY_8,        KEY_KP8 },
 127         { KEY_9,        KEY_KP9 },
 128         { KEY_M,        KEY_KP0 },
 129         { KEY_DOT,      KEY_KPDOT },
 130         { KEY_SLASH,    KEY_KPPLUS },
 131         { KEY_SEMICOLON, KEY_KPMINUS },
 132         { KEY_P,        KEY_KPASTERISK },
 133         { KEY_MINUS,    KEY_KPEQUAL },
 134         { KEY_0,        KEY_KPSLASH },
 135         { KEY_F6,       KEY_NUMLOCK },
 136         { KEY_KPENTER,  KEY_KPENTER },
 137         { KEY_BACKSPACE, KEY_BACKSPACE },
 138         { }
 139 };
 140
 141 static struct hidinput_key_translation powerbook_iso_keyboard[] = {
 142         { KEY_GRAVE,    KEY_102ND },
 143         { KEY_102ND,    KEY_GRAVE },
 144         { }
 145 };
 146
 147 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
 148 {
 149         struct hidinput_key_translation *trans;
 150
 151         /* Look for the translation */
 152         for (trans = table; trans->from; trans++)
 153                 if (trans->from == from)
 154                         return trans;
 155
 156         return NULL;
 157 }
 158
 159 static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 160                 struct hid_usage *usage, __s32 value)
 161 {
 162         struct hidinput_key_translation *trans;
 163
 164         if (usage->code == KEY_FN) {
 165                 if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
 166                 else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
 167
 168                 input_event(input, usage->type, usage->code, value);
 169
 170                 return 1;
 171         }
 172
 173         if (hid_pb_fnmode) {
 174                 int do_translate;
 175
 176                 trans = find_translation(powerbook_fn_keys, usage->code);
 177                 if (trans) {
 178                         if (test_bit(usage->code, hid->pb_pressed_fn))
 179                                 do_translate = 1;
 180                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
 181                                 do_translate =
 182                                         (hid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
 183                                         (hid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
 184                         else
 185                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
 186
 187                         if (do_translate) {
 188                                 if (value)
 189                                         set_bit(usage->code, hid->pb_pressed_fn);
 190                                 else
 191                                         clear_bit(usage->code, hid->pb_pressed_fn);
 192
 193                                 input_event(input, usage->type, trans->to, value);
 194
 195                                 return 1;
 196                         }
 197                 }
 198
 199                 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
 200                                 test_bit(LED_NUML, input->led)) {
 201                         trans = find_translation(powerbook_numlock_keys, usage->code);
 202
 203                         if (trans) {
 204                                 if (value)
 205                                         set_bit(usage->code, hid->pb_pressed_numlock);
 206                                 else
 207                                         clear_bit(usage->code, hid->pb_pressed_numlock);
 208
 209                                 input_event(input, usage->type, trans->to, value);
 210                         }
 211
 212                         return 1;
 213                 }
 214         }
 215
 216         if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
 217                 trans = find_translation(powerbook_iso_keyboard, usage->code);
 218                 if (trans) {
 219                         input_event(input, usage->type, trans->to, value);
 220                         return 1;
 221                 }
 222         }
 223
 224         return 0;
 225 }
 226
 227 static void hidinput_pb_setup(struct input_dev *input)
 228 {
 229         struct hidinput_key_translation *trans;
 230
 231         set_bit(KEY_NUMLOCK, input->keybit);
 232
 233         /* Enable all needed keys */
 234         for (trans = powerbook_fn_keys; trans->from; trans++)
 235                 set_bit(trans->to, input->keybit);
 236
 237         for (trans = powerbook_numlock_keys; trans->from; trans++)
 238                 set_bit(trans->to, input->keybit);
 239
 240         for (trans = powerbook_iso_keyboard; trans->from; trans++)
 241                 set_bit(trans->to, input->keybit);
 242
 243 }
 244 #else
 245 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 246                 struct hid_usage *usage, __s32 value)
 247 {
 248         return 0;
 249 }
 250
 251 static inline void hidinput_pb_setup(struct input_dev *input)
 252 {
 253 }
 254 #endif
 255
 256 static inline int match_scancode(int code, int scancode)
 257 {
 258         if (scancode == 0)
 259                 return 1;
 260         return ((code & (HID_USAGE_PAGE | HID_USAGE)) == scancode);
 261 }
 262
 263 static inline int match_keycode(int code, int keycode)
 264 {
 265         if (keycode == 0)
 266                 return 1;
 267         return (code == keycode);
 268 }
 269
 270 static struct hid_usage *hidinput_find_key(struct hid_device *hid,
 271                 int scancode, int keycode)
 272 {
 273         int i, j, k;
 274         struct hid_report *report;
 275         struct hid_usage *usage;
 276
 277         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
 278                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 279                         for (i = 0; i < report->maxfield; i++) {
 280                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
 281                                         usage = report->field[i]->usage + j;
 282                                         if (usage->type == EV_KEY &&
 283                                                 match_scancode(usage->hid, scancode) &&
 284                                                 match_keycode(usage->code, keycode))
 285                                                 return usage;
 286                                 }
 287                         }
 288                 }
 289         }
 290         return NULL;
 291 }
 292
 293 static int hidinput_getkeycode(struct input_dev *dev, int scancode,
 294                                 int *keycode)
 295 {
 296         struct hid_device *hid = dev->private;
 297         struct hid_usage *usage;
 298
 299         usage = hidinput_find_key(hid, scancode, 0);
 300         if (usage) {
 301                 *keycode = usage->code;
 302                 return 0;
 303         }
 304         return -EINVAL;
 305 }
 306
 307 static int hidinput_setkeycode(struct input_dev *dev, int scancode,
 308                                 int keycode)
 309 {
 310         struct hid_device *hid = dev->private;
 311         struct hid_usage *usage;
 312         int old_keycode;
 313
 314         if (keycode < 0 || keycode > KEY_MAX)
 315                 return -EINVAL;
 316
 317         usage = hidinput_find_key(hid, scancode, 0);
 318         if (usage) {
 319                 old_keycode = usage->code;
 320                 usage->code = keycode;
 321
 322                 clear_bit(old_keycode, dev->keybit);
 323                 set_bit(usage->code, dev->keybit);
 324                 dbg_hid(KERN_DEBUG "Assigned keycode %d to HID usage code %x\n", keycode, scancode);
 325                 /* Set the keybit for the old keycode if the old keycode is used
 326                  * by another key */
 327                 if (hidinput_find_key (hid, 0, old_keycode))
 328                         set_bit(old_keycode, dev->keybit);
 329
 330                 return 0;
 331         }
 332
 333         return -EINVAL;
 334 }
 335
 336
 337 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 338                                      struct hid_usage *usage)
 339 {
 340         struct input_dev *input = hidinput->input;
 341         struct hid_device *device = input_get_drvdata(input);
 342         int max = 0, code;
 343         unsigned long *bit = NULL;
 344
 345         field->hidinput = hidinput;
 346
 347         dbg_hid("Mapping: ");
 348         hid_resolv_usage(usage->hid);
 349         dbg_hid_line(" ---> ");
 350
 351         if (field->flags & HID_MAIN_ITEM_CONSTANT)
 352                 goto ignore;
 353
 354         switch (usage->hid & HID_USAGE_PAGE) {
 355
 356                 case HID_UP_UNDEFINED:
 357                         goto ignore;
 358
 359                 case HID_UP_KEYBOARD:
 360
 361                         set_bit(EV_REP, input->evbit);
 362
 363                         if ((usage->hid & HID_USAGE) < 256) {
 364                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 365                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 366                         } else
 367                                 map_key(KEY_UNKNOWN);
 368
 369                         break;
 370
 371                 case HID_UP_BUTTON:
 372
 373                         code = ((usage->hid - 1) & 0xf);
 374
 375                         switch (field->application) {
 376                                 case HID_GD_MOUSE:
 377                                 case HID_GD_POINTER:  code += 0x110; break;
 378                                 case HID_GD_JOYSTICK: code += 0x120; break;
 379                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 380                                 default:
 381                                         switch (field->physical) {
 382                                                 case HID_GD_MOUSE:
 383                                                 case HID_GD_POINTER:  code += 0x110; break;
 384                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 385                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 386                                                 default:              code += 0x100;
 387                                         }
 388                         }
 389
 390                         /* Special handling for Logitech Cordless Desktop */
 391                         if (field->application != HID_GD_MOUSE) {
 392                                 if (device->quirks & HID_QUIRK_LOGITECH_EXPANDED_KEYMAP) {
 393                                         int hid = usage->hid & HID_USAGE;
 394                                         if (hid < LOGITECH_EXPANDED_KEYMAP_SIZE && logitech_expanded_keymap[hid] != 0)
 395                                                 code = logitech_expanded_keymap[hid];
 396                                 }
 397                         } else {
 398                                 if (device->quirks & HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL) {
 399                                         int hid = usage->hid & HID_USAGE;
 400                                         if (hid == 7 || hid == 8)
 401                                                 goto ignore;
 402                                 }
 403                         }
 404
 405                         map_key(code);
 406                         break;
 407
 408
 409                 case HID_UP_SIMULATION:
 410
 411                         switch (usage->hid & 0xffff) {
 412                                 case 0xba: map_abs(ABS_RUDDER);   break;
 413                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 414                                 case 0xc4: map_abs(ABS_GAS);      break;
 415                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 416                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 417                                 default:   goto ignore;
 418                         }
 419                         break;
 420
 421                 case HID_UP_GENDESK:
 422
 423                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 424                                 switch (usage->hid & 0xf) {
 425                                         case 0x1: map_key_clear(KEY_POWER);  break;
 426                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 427                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 428                                         default: goto unknown;
 429                                 }
 430                                 break;
 431                         }
 432
 433                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 434                                 switch (usage->hid) {
 435                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 436                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 437                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 438                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 439                                         default: goto unknown;
 440                                 }
 441                                 if (field->dpad) {
 442                                         map_abs(field->dpad);
 443                                         goto ignore;
 444                                 }
 445                                 map_abs(ABS_HAT0X);
 446                                 break;
 447                         }
 448
 449                         switch (usage->hid) {
 450
 451                                 /* These usage IDs map directly to the usage codes. */
 452                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 453                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 454                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 455                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 456                                                 map_rel(usage->hid & 0xf);
 457                                         else
 458                                                 map_abs(usage->hid & 0xf);
 459                                         break;
 460
 461                                 case HID_GD_HATSWITCH:
 462                                         usage->hat_min = field->logical_minimum;
 463                                         usage->hat_max = field->logical_maximum;
 464                                         map_abs(ABS_HAT0X);
 465                                         break;
 466
 467                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 468                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 469
 470                                 default: goto unknown;
 471                         }
 472
 473                         break;
 474
 475                 case HID_UP_LED:
 476
 477                         switch (usage->hid & 0xffff) {                        /* HID-Value:                   */
 478                                 case 0x01:  map_led (LED_NUML);     break;    /*   "Num Lock"                 */
 479                                 case 0x02:  map_led (LED_CAPSL);    break;    /*   "Caps Lock"                */
 480                                 case 0x03:  map_led (LED_SCROLLL);  break;    /*   "Scroll Lock"              */
 481                                 case 0x04:  map_led (LED_COMPOSE);  break;    /*   "Compose"                  */
 482                                 case 0x05:  map_led (LED_KANA);     break;    /*   "Kana"                     */
 483                                 case 0x27:  map_led (LED_SLEEP);    break;    /*   "Stand-By"                 */
 484                                 case 0x4c:  map_led (LED_SUSPEND);  break;    /*   "System Suspend"           */
 485                                 case 0x09:  map_led (LED_MUTE);     break;    /*   "Mute"                     */
 486                                 case 0x4b:  map_led (LED_MISC);     break;    /*   "Generic Indicator"        */
 487                                 case 0x19:  map_led (LED_MAIL);     break;    /*   "Message Waiting"          */
 488                                 case 0x4d:  map_led (LED_CHARGING); break;    /*   "External Power Connected" */
 489
 490                                 default: goto ignore;
 491                         }
 492                         break;
 493
 494                 case HID_UP_DIGITIZER:
 495
 496                         switch (usage->hid & 0xff) {
 497
 498                                 case 0x30: /* TipPressure */
 499                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 500                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 501                                                 set_bit(EV_KEY, input->evbit);
 502                                                 set_bit(BTN_TOUCH, input->keybit);
 503                                         }
 504
 505                                         map_abs_clear(ABS_PRESSURE);
 506                                         break;
 507
 508                                 case 0x32: /* InRange */
 509                                         switch (field->physical & 0xff) {
 510                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 511                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 512                                                 default: map_key(BTN_TOOL_PEN); break;
 513                                         }
 514                                         break;
 515
 516                                 case 0x3c: /* Invert */
 517                                         map_key_clear(BTN_TOOL_RUBBER);
 518                                         break;
 519
 520                                 case 0x33: /* Touch */
 521                                 case 0x42: /* TipSwitch */
 522                                 case 0x43: /* TipSwitch2 */
 523                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 524                                         map_key_clear(BTN_TOUCH);
 525                                         break;
 526
 527                                 case 0x44: /* BarrelSwitch */
 528                                         map_key_clear(BTN_STYLUS);
 529                                         break;
 530
 531                                 default:  goto unknown;
 532                         }
 533                         break;
 534
 535                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 536
 537                         switch (usage->hid & HID_USAGE) {
 538                                 case 0x000: goto ignore;
 539                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 540                                 case 0x036: map_key_clear(BTN_MISC);            break;
 541                                 /*
 542                                  * The next three are reported by Belkin wireless
 543                                  * keyboard (1020:0006). These values are "reserved"
 544                                  * in HUT 1.12.
 545                                  */
 546                                 case 0x03a: map_key_clear(KEY_SOUND);           break;
 547                                 case 0x03b: map_key_clear(KEY_CAMERA);          break;
 548                                 case 0x03c: map_key_clear(KEY_DOCUMENTS);       break;
 549
 550                                 case 0x040: map_key_clear(KEY_MENU);            break;
 551                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 552
 553                                 case 0x083: map_key_clear(KEY_LAST);            break;
 554                                 case 0x088: map_key_clear(KEY_PC);              break;
 555                                 case 0x089: map_key_clear(KEY_TV);              break;
 556                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 557                                 case 0x08b: map_key_clear(KEY_DVD);             break;
 558                                 case 0x08c: map_key_clear(KEY_PHONE);           break;
 559                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 560                                 case 0x08e: map_key_clear(KEY_VIDEOPHONE);      break;
 561                                 case 0x08f: map_key_clear(KEY_GAMES);           break;
 562                                 case 0x090: map_key_clear(KEY_MEMO);            break;
 563                                 case 0x091: map_key_clear(KEY_CD);              break;
 564                                 case 0x092: map_key_clear(KEY_VCR);             break;
 565                                 case 0x093: map_key_clear(KEY_TUNER);           break;
 566                                 case 0x094: map_key_clear(KEY_EXIT);            break;
 567                                 case 0x095: map_key_clear(KEY_HELP);            break;
 568                                 case 0x096: map_key_clear(KEY_TAPE);            break;
 569                                 case 0x097: map_key_clear(KEY_TV2);             break;
 570                                 case 0x098: map_key_clear(KEY_SAT);             break;
 571                                 case 0x09a: map_key_clear(KEY_PVR);             break;
 572
 573                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 574                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 575                                 case 0x0a0: map_key_clear(KEY_VCR2);            break;
 576
 577                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 578                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 579                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 580                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 581                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 582                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 583                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 584                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 585                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 586
 587                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 588                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 589                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 590                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 591                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 592                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 593
 594                                 /* reserved in HUT 1.12. Reported on Petalynx remote */
 595                                 case 0x0f6: map_key_clear(KEY_NEXT);            break;
 596                                 case 0x0fa: map_key_clear(KEY_BACK);            break;
 597
 598                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 599                                 case 0x184: map_key_clear(KEY_WORDPROCESSOR);   break;
 600                                 case 0x185: map_key_clear(KEY_EDITOR);          break;
 601                                 case 0x186: map_key_clear(KEY_SPREADSHEET);     break;
 602                                 case 0x187: map_key_clear(KEY_GRAPHICSEDITOR);  break;
 603                                 case 0x188: map_key_clear(KEY_PRESENTATION);    break;
 604                                 case 0x189: map_key_clear(KEY_DATABASE);        break;
 605                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 606                                 case 0x18b: map_key_clear(KEY_NEWS);            break;
 607                                 case 0x18c: map_key_clear(KEY_VOICEMAIL);       break;
 608                                 case 0x18d: map_key_clear(KEY_ADDRESSBOOK);     break;
 609                                 case 0x18e: map_key_clear(KEY_CALENDAR);        break;
 610                                 case 0x191: map_key_clear(KEY_FINANCE);         break;
 611                                 case 0x192: map_key_clear(KEY_CALC);            break;
 612                                 case 0x194: map_key_clear(KEY_FILE);            break;
 613                                 case 0x196: map_key_clear(KEY_WWW);             break;
 614                                 case 0x19e: map_key_clear(KEY_COFFEE);          break;
 615                                 case 0x1a6: map_key_clear(KEY_HELP);            break;
 616                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 617                                 case 0x1bc: map_key_clear(KEY_MESSENGER);       break;
 618                                 case 0x1bd: map_key_clear(KEY_INFO);            break;
 619                                 case 0x201: map_key_clear(KEY_NEW);             break;
 620                                 case 0x202: map_key_clear(KEY_OPEN);            break;
 621                                 case 0x203: map_key_clear(KEY_CLOSE);           break;
 622                                 case 0x204: map_key_clear(KEY_EXIT);            break;
 623                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 624                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 625                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 626                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 627                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 628                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 629                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 630                                 case 0x21f: map_key_clear(KEY_FIND);            break;
 631                                 case 0x221: map_key_clear(KEY_SEARCH);          break;
 632                                 case 0x222: map_key_clear(KEY_GOTO);            break;
 633                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 634                                 case 0x224: map_key_clear(KEY_BACK);            break;
 635                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 636                                 case 0x226: map_key_clear(KEY_STOP);            break;
 637                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 638                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 639                                 case 0x22d: map_key_clear(KEY_ZOOMIN);          break;
 640                                 case 0x22e: map_key_clear(KEY_ZOOMOUT);         break;
 641                                 case 0x22f: map_key_clear(KEY_ZOOMRESET);       break;
 642                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 643                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 644                                 case 0x238: map_rel(REL_HWHEEL);                break;
 645                                 case 0x25f: map_key_clear(KEY_CANCEL);          break;
 646                                 case 0x279: map_key_clear(KEY_REDO);            break;
 647
 648                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 649                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 650                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 651
 652                                 /* Reported on a Cherry Cymotion keyboard */
 653                                 case 0x301: map_key_clear(KEY_PROG1);           break;
 654                                 case 0x302: map_key_clear(KEY_PROG2);           break;
 655                                 case 0x303: map_key_clear(KEY_PROG3);           break;
 656
 657                                 /* Reported on certain Logitech wireless keyboards */
 658                                 case 0x1001: map_key_clear(KEY_MESSENGER);      break;
 659                                 case 0x1003: map_key_clear(KEY_SOUND);          break;
 660                                 case 0x1004: map_key_clear(KEY_VIDEO);          break;
 661                                 case 0x1005: map_key_clear(KEY_AUDIO);          break;
 662                                 case 0x100a: map_key_clear(KEY_DOCUMENTS);      break;
 663                                 case 0x1011: map_key_clear(KEY_PREVIOUSSONG);   break;
 664                                 case 0x1012: map_key_clear(KEY_NEXTSONG);       break;
 665                                 case 0x1013: map_key_clear(KEY_CAMERA);         break;
 666                                 case 0x1014: map_key_clear(KEY_MESSENGER);      break;
 667                                 case 0x1015: map_key_clear(KEY_RECORD);         break;
 668                                 case 0x1016: map_key_clear(KEY_PLAYER);         break;
 669                                 case 0x1017: map_key_clear(KEY_EJECTCD);        break;
 670                                 case 0x1018: map_key_clear(KEY_MEDIA);          break;
 671                                 case 0x1019: map_key_clear(KEY_PROG1);          break;
 672                                 case 0x101a: map_key_clear(KEY_PROG2);          break;
 673                                 case 0x101b: map_key_clear(KEY_PROG3);          break;
 674                                 case 0x101f: map_key_clear(KEY_ZOOMIN);         break;
 675                                 case 0x1020: map_key_clear(KEY_ZOOMOUT);        break;
 676                                 case 0x1021: map_key_clear(KEY_ZOOMRESET);      break;
 677                                 case 0x1023: map_key_clear(KEY_CLOSE);          break;
 678                                 case 0x1027: map_key_clear(KEY_MENU);           break;
 679                                 /* this one is marked as 'Rotate' */
 680                                 case 0x1028: map_key_clear(KEY_ANGLE);          break;
 681                                 case 0x1029: map_key_clear(KEY_SHUFFLE);        break;
 682                                 case 0x102a: map_key_clear(KEY_BACK);           break;
 683                                 case 0x102b: map_key_clear(KEY_CYCLEWINDOWS);   break;
 684                                 case 0x1041: map_key_clear(KEY_BATTERY);        break;
 685                                 case 0x1042: map_key_clear(KEY_WORDPROCESSOR);  break;
 686                                 case 0x1043: map_key_clear(KEY_SPREADSHEET);    break;
 687                                 case 0x1044: map_key_clear(KEY_PRESENTATION);   break;
 688                                 case 0x1045: map_key_clear(KEY_UNDO);           break;
 689                                 case 0x1046: map_key_clear(KEY_REDO);           break;
 690                                 case 0x1047: map_key_clear(KEY_PRINT);          break;
 691                                 case 0x1048: map_key_clear(KEY_SAVE);           break;
 692                                 case 0x1049: map_key_clear(KEY_PROG1);          break;
 693                                 case 0x104a: map_key_clear(KEY_PROG2);          break;
 694                                 case 0x104b: map_key_clear(KEY_PROG3);          break;
 695                                 case 0x104c: map_key_clear(KEY_PROG4);          break;
 696
 697                                 default:    goto ignore;
 698                         }
 699                         break;
 700
 701                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 702
 703                         set_bit(EV_REP, input->evbit);
 704                         switch (usage->hid & HID_USAGE) {
 705                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 706                                 case 0x070: map_key_clear(KEY_HP);              break;
 707                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 708                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 709                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 710                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 711                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 712                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 713                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 714                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 715                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 716                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 717                                 default:    goto ignore;
 718                         }
 719                         break;
 720
 721                 case HID_UP_MSVENDOR:
 722
 723                         /* special case - Chicony Chicony KU-0418 tactical pad */
 724                         if (device->vendor == 0x04f2 && device->product == 0x0418) {
 725                                 set_bit(EV_REP, input->evbit);
 726                                 switch(usage->hid & HID_USAGE) {
 727                                         case 0xff01: map_key_clear(BTN_1);              break;
 728                                         case 0xff02: map_key_clear(BTN_2);              break;
 729                                         case 0xff03: map_key_clear(BTN_3);              break;
 730                                         case 0xff04: map_key_clear(BTN_4);              break;
 731                                         case 0xff05: map_key_clear(BTN_5);              break;
 732                                         case 0xff06: map_key_clear(BTN_6);              break;
 733                                         case 0xff07: map_key_clear(BTN_7);              break;
 734                                         case 0xff08: map_key_clear(BTN_8);              break;
 735                                         case 0xff09: map_key_clear(BTN_9);              break;
 736                                         case 0xff0a: map_key_clear(BTN_A);              break;
 737                                         case 0xff0b: map_key_clear(BTN_B);              break;
 738                                         default:    goto ignore;
 739                                 }
 740                         } else {
 741                                 goto ignore;
 742                         }
 743                         break;
 744
 745                 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
 746
 747                         set_bit(EV_REP, input->evbit);
 748                         switch(usage->hid & HID_USAGE) {
 749                                 case 0x003:
 750                                         /* The fn key on Apple PowerBooks */
 751                                         map_key_clear(KEY_FN);
 752                                         hidinput_pb_setup(input);
 753                                         break;
 754
 755                                 default:    goto ignore;
 756                         }
 757                         break;
 758
 759                 case HID_UP_LOGIVENDOR:
 760                         set_bit(EV_REP, input->evbit);
 761                         switch(usage->hid & HID_USAGE) {
 762                                 /* Reported on Logitech Ultra X Media Remote */
 763                                 case 0x004: map_key_clear(KEY_AGAIN);           break;
 764                                 case 0x00d: map_key_clear(KEY_HOME);            break;
 765                                 case 0x024: map_key_clear(KEY_SHUFFLE);         break;
 766                                 case 0x025: map_key_clear(KEY_TV);              break;
 767                                 case 0x026: map_key_clear(KEY_MENU);            break;
 768                                 case 0x031: map_key_clear(KEY_AUDIO);           break;
 769                                 case 0x032: map_key_clear(KEY_TEXT);            break;
 770                                 case 0x033: map_key_clear(KEY_LAST);            break;
 771                                 case 0x047: map_key_clear(KEY_MP3);             break;
 772                                 case 0x048: map_key_clear(KEY_DVD);             break;
 773                                 case 0x049: map_key_clear(KEY_MEDIA);           break;
 774                                 case 0x04a: map_key_clear(KEY_VIDEO);           break;
 775                                 case 0x04b: map_key_clear(KEY_ANGLE);           break;
 776                                 case 0x04c: map_key_clear(KEY_LANGUAGE);        break;
 777                                 case 0x04d: map_key_clear(KEY_SUBTITLE);        break;
 778                                 case 0x051: map_key_clear(KEY_RED);             break;
 779                                 case 0x052: map_key_clear(KEY_CLOSE);           break;
 780
 781                                 /* Reported on Petalynx Maxter remote */
 782                                 case 0x05a: map_key_clear(KEY_TEXT);            break;
 783                                 case 0x05b: map_key_clear(KEY_RED);             break;
 784                                 case 0x05c: map_key_clear(KEY_GREEN);           break;
 785                                 case 0x05d: map_key_clear(KEY_YELLOW);          break;
 786                                 case 0x05e: map_key_clear(KEY_BLUE);            break;
 787
 788                                 default:    goto ignore;
 789                         }
 790                         break;
 791
 792                 case HID_UP_PID:
 793
 794                         switch(usage->hid & HID_USAGE) {
 795                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 796                                 default: goto ignore;
 797                         }
 798                         break;
 799
 800                 default:
 801                 unknown:
 802                         if (field->report_size == 1) {
 803                                 if (field->report->type == HID_OUTPUT_REPORT) {
 804                                         map_led(LED_MISC);
 805                                         break;
 806                                 }
 807                                 map_key(BTN_MISC);
 808                                 break;
 809                         }
 810                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 811                                 map_rel(REL_MISC);
 812                                 break;
 813                         }
 814                         map_abs(ABS_MISC);
 815                         break;
 816         }
 817
 818         if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
 819                 if (usage->hid == HID_GD_Z)
 820                         map_rel(REL_HWHEEL);
 821                 else if (usage->code == BTN_1)
 822                         map_key(BTN_2);
 823                 else if (usage->code == BTN_2)
 824                         map_key(BTN_1);
 825         }
 826
 827         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
 828                  (usage->type == EV_REL) && (usage->code == REL_WHEEL))
 829                         set_bit(REL_HWHEEL, bit);
 830
 831         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 832                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 833                 goto ignore;
 834
 835         if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
 836                 usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
 837                 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
 838
 839         set_bit(usage->type, input->evbit);
 840
 841         if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
 842                         (usage->type == EV_KEY ||
 843                          usage->type == EV_REL ||
 844                          usage->type == EV_ABS))
 845                 clear_bit(usage->code, bit);
 846
 847         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 848                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 849
 850         if (usage->code > max)
 851                 goto ignore;
 852
 853
 854         if (usage->type == EV_ABS) {
 855
 856                 int a = field->logical_minimum;
 857                 int b = field->logical_maximum;
 858
 859                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 860                         a = field->logical_minimum = 0;
 861                         b = field->logical_maximum = 255;
 862                 }
 863
 864                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 865                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 866                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 867
 868         }
 869
 870         if (usage->type == EV_ABS &&
 871             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 872                 int i;
 873                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 874                         input_set_abs_params(input, i, -1, 1, 0, 0);
 875                         set_bit(i, input->absbit);
 876                 }
 877                 if (usage->hat_dir && !field->dpad)
 878                         field->dpad = usage->code;
 879         }
 880
 881         /* for those devices which produce Consumer volume usage as relative,
 882          * we emulate pressing volumeup/volumedown appropriate number of times
 883          * in hidinput_hid_event()
 884          */
 885         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 886                         (usage->code == ABS_VOLUME)) {
 887                 set_bit(KEY_VOLUMEUP, input->keybit);
 888                 set_bit(KEY_VOLUMEDOWN, input->keybit);
 889         }
 890
 891         hid_resolv_event(usage->type, usage->code);
 892
 893         dbg_hid_line("\n");
 894
 895         return;
 896
 897 ignore:
 898         dbg_hid_line("IGNORED\n");
 899         return;
 900 }
 901
 902 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 903 {
 904         struct input_dev *input;
 905         int *quirks = &hid->quirks;
 906
 907         if (!field->hidinput)
 908                 return;
 909
 910         input = field->hidinput->input;
 911
 912         if (!usage->type)
 913                 return;
 914
 915         if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 916                 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
 917                 if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 918                 else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 919                 return;
 920         }
 921
 922         if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
 923                 input_event(input, usage->type, usage->code, -value);
 924                 return;
 925         }
 926
 927         if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
 928                 input_event(input, usage->type, REL_HWHEEL, value);
 929                 return;
 930         }
 931
 932         if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
 933                 return;
 934
 935         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 936                 int hat_dir = usage->hat_dir;
 937                 if (!hat_dir)
 938                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 939                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 940                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 941                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 942                 return;
 943         }
 944
 945         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 946                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 947                 return;
 948         }
 949
 950         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 951                 if (value) {
 952                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 953                         return;
 954                 }
 955                 input_event(input, usage->type, usage->code, 0);
 956                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 957                 return;
 958         }
 959
 960         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 961                 int a = field->logical_minimum;
 962                 int b = field->logical_maximum;
 963                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 964         }
 965
 966         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 967                 dbg_hid("Maximum Effects - %d\n",value);
 968                 return;
 969         }
 970
 971         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 972                 dbg_hid("PID Pool Report\n");
 973                 return;
 974         }
 975
 976         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 977                 return;
 978
 979         if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 980                         (usage->code == ABS_VOLUME)) {
 981                 int count = abs(value);
 982                 int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
 983                 int i;
 984
 985                 for (i = 0; i < count; i++) {
 986                         input_event(input, EV_KEY, direction, 1);
 987                         input_sync(input);
 988                         input_event(input, EV_KEY, direction, 0);
 989                         input_sync(input);
 990                 }
 991                 return;
 992         }
 993
 994         input_event(input, usage->type, usage->code, value);
 995
 996         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 997                 input_event(input, usage->type, usage->code, 0);
 998 }
 999
1000 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
1001 {
1002         struct hid_input *hidinput;
1003
1004         list_for_each_entry(hidinput, &hid->inputs, list)
1005                 input_sync(hidinput->input);
1006 }
1007 EXPORT_SYMBOL_GPL(hidinput_report_event);
1008
1009 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
1010 {
1011         struct hid_report *report;
1012         int i, j;
1013
1014         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
1015                 for (i = 0; i < report->maxfield; i++) {
1016                         *field = report->field[i];
1017                         for (j = 0; j < (*field)->maxusage; j++)
1018                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
1019                                         return j;
1020                 }
1021         }
1022         return -1;
1023 }
1024 EXPORT_SYMBOL_GPL(hidinput_find_field);
1025
1026 static int hidinput_open(struct input_dev *dev)
1027 {
1028         struct hid_device *hid = input_get_drvdata(dev);
1029
1030         return hid->hid_open(hid);
1031 }
1032
1033 static void hidinput_close(struct input_dev *dev)
1034 {
1035         struct hid_device *hid = input_get_drvdata(dev);
1036
1037         hid->hid_close(hid);
1038 }
1039
1040 /*
1041  * Register the input device; print a message.
1042  * Configure the input layer interface
1043  * Read all reports and initialize the absolute field values.
1044  */
1045
1046 int hidinput_connect(struct hid_device *hid)
1047 {
1048         struct hid_report *report;
1049         struct hid_input *hidinput = NULL;
1050         struct input_dev *input_dev;
1051         int i, j, k;
1052         int max_report_type = HID_OUTPUT_REPORT;
1053
1054         INIT_LIST_HEAD(&hid->inputs);
1055
1056         for (i = 0; i < hid->maxcollection; i++)
1057                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
1058                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
1059                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
1060                                 break;
1061
1062         if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDINPUT) == 0)
1063                 return -1;
1064
1065         if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
1066                 max_report_type = HID_INPUT_REPORT;
1067
1068         for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
1069                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
1070
1071                         if (!report->maxfield)
1072                                 continue;
1073
1074                         if (!hidinput) {
1075                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
1076                                 input_dev = input_allocate_device();
1077                                 if (!hidinput || !input_dev) {
1078                                         kfree(hidinput);
1079                                         input_free_device(input_dev);
1080                                         err_hid("Out of memory during hid input probe");
1081                                         return -1;
1082                                 }
1083
1084                                 input_set_drvdata(input_dev, hid);
1085                                 input_dev->event = hid->hidinput_input_event;
1086                                 input_dev->open = hidinput_open;
1087                                 input_dev->close = hidinput_close;
1088                                 input_dev->setkeycode = hidinput_setkeycode;
1089                                 input_dev->getkeycode = hidinput_getkeycode;
1090
1091                                 input_dev->name = hid->name;
1092                                 input_dev->phys = hid->phys;
1093                                 input_dev->uniq = hid->uniq;
1094                                 input_dev->id.bustype = hid->bus;
1095                                 input_dev->id.vendor  = hid->vendor;
1096                                 input_dev->id.product = hid->product;
1097                                 input_dev->id.version = hid->version;
1098                                 input_dev->dev.parent = hid->dev;
1099                                 hidinput->input = input_dev;
1100                                 list_add_tail(&hidinput->list, &hid->inputs);
1101                         }
1102
1103                         for (i = 0; i < report->maxfield; i++)
1104                                 for (j = 0; j < report->field[i]->maxusage; j++)
1105                                         hidinput_configure_usage(hidinput, report->field[i],
1106                                                                  report->field[i]->usage + j);
1107
1108                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
1109                                 /* This will leave hidinput NULL, so that it
1110                                  * allocates another one if we have more inputs on
1111                                  * the same interface. Some devices (e.g. Happ's
1112                                  * UGCI) cram a lot of unrelated inputs into the
1113                                  * same interface. */
1114                                 hidinput->report = report;
1115                                 input_register_device(hidinput->input);
1116                                 hidinput = NULL;
1117                         }
1118                 }
1119
1120         if (hidinput)
1121                 input_register_device(hidinput->input);
1122
1123         return 0;
1124 }
1125 EXPORT_SYMBOL_GPL(hidinput_connect);
1126
1127 void hidinput_disconnect(struct hid_device *hid)
1128 {
1129         struct hid_input *hidinput, *next;
1130
1131         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
1132                 list_del(&hidinput->list);
1133                 input_unregister_device(hidinput->input);
1134                 kfree(hidinput);
1135         }
1136 }
1137 EXPORT_SYMBOL_GPL(hidinput_disconnect);
1138