drivers/usb/input/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  *
   6  *  USB HID to Linux Input mapping
   7  */
   8
   9 /*
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  *
  24  * Should you need to contact me, the author, you can do so either by
  25  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  26  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  27  */
  28
  29 #include <linux/module.h>
  30 #include <linux/slab.h>
  31 #include <linux/kernel.h>
  32 #include <linux/usb/input.h>
  33
  34 #undef DEBUG
  35
  36 #include "hid.h"
  37
  38 #define unk     KEY_UNKNOWN
  39
  40 static const unsigned char hid_keyboard[256] = {
  41           0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
  42          50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
  43           4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
  44          27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
  45          65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
  46         105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
  47          72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
  48         191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
  49         115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
  50         122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  51         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  52         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  53         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  54         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  55          29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
  56         150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
  57 };
  58
  59 static const struct {
  60         __s32 x;
  61         __s32 y;
  62 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
  63
  64 #define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
  65 #define map_rel(c)      do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
  66 #define map_key(c)      do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
  67 #define map_led(c)      do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
  68
  69 #define map_abs_clear(c)        do { map_abs(c); clear_bit(c, bit); } while (0)
  70 #define map_key_clear(c)        do { map_key(c); clear_bit(c, bit); } while (0)
  71
  72 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
  73
  74 struct hidinput_key_translation {
  75         u16 from;
  76         u16 to;
  77         u8 flags;
  78 };
  79
  80 #define POWERBOOK_FLAG_FKEY 0x01
  81
  82 static struct hidinput_key_translation powerbook_fn_keys[] = {
  83         { KEY_BACKSPACE, KEY_DELETE },
  84         { KEY_F1,       KEY_BRIGHTNESSDOWN,     POWERBOOK_FLAG_FKEY },
  85         { KEY_F2,       KEY_BRIGHTNESSUP,       POWERBOOK_FLAG_FKEY },
  86         { KEY_F3,       KEY_MUTE,               POWERBOOK_FLAG_FKEY },
  87         { KEY_F4,       KEY_VOLUMEDOWN,         POWERBOOK_FLAG_FKEY },
  88         { KEY_F5,       KEY_VOLUMEUP,           POWERBOOK_FLAG_FKEY },
  89         { KEY_F6,       KEY_NUMLOCK,            POWERBOOK_FLAG_FKEY },
  90         { KEY_F7,       KEY_SWITCHVIDEOMODE,    POWERBOOK_FLAG_FKEY },
  91         { KEY_F8,       KEY_KBDILLUMTOGGLE,     POWERBOOK_FLAG_FKEY },
  92         { KEY_F9,       KEY_KBDILLUMDOWN,       POWERBOOK_FLAG_FKEY },
  93         { KEY_F10,      KEY_KBDILLUMUP,         POWERBOOK_FLAG_FKEY },
  94         { KEY_UP,       KEY_PAGEUP },
  95         { KEY_DOWN,     KEY_PAGEDOWN },
  96         { KEY_LEFT,     KEY_HOME },
  97         { KEY_RIGHT,    KEY_END },
  98         { }
  99 };
 100
 101 static struct hidinput_key_translation powerbook_numlock_keys[] = {
 102         { KEY_J,        KEY_KP1 },
 103         { KEY_K,        KEY_KP2 },
 104         { KEY_L,        KEY_KP3 },
 105         { KEY_U,        KEY_KP4 },
 106         { KEY_I,        KEY_KP5 },
 107         { KEY_O,        KEY_KP6 },
 108         { KEY_7,        KEY_KP7 },
 109         { KEY_8,        KEY_KP8 },
 110         { KEY_9,        KEY_KP9 },
 111         { KEY_M,        KEY_KP0 },
 112         { KEY_DOT,      KEY_KPDOT },
 113         { KEY_SLASH,    KEY_KPPLUS },
 114         { KEY_SEMICOLON, KEY_KPMINUS },
 115         { KEY_P,        KEY_KPASTERISK },
 116         { KEY_MINUS,    KEY_KPEQUAL },
 117         { KEY_0,        KEY_KPSLASH },
 118         { KEY_F6,       KEY_NUMLOCK },
 119         { KEY_KPENTER,  KEY_KPENTER },
 120         { KEY_BACKSPACE, KEY_BACKSPACE },
 121         { }
 122 };
 123
 124 static int usbhid_pb_fnmode = 1;
 125 module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
 126 MODULE_PARM_DESC(pb_fnmode,
 127         "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
 128
 129 static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
 130 {
 131         struct hidinput_key_translation *trans;
 132
 133         /* Look for the translation */
 134         for (trans = table; trans->from; trans++)
 135                 if (trans->from == from)
 136                         return trans;
 137
 138         return NULL;
 139 }
 140
 141 static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 142                              struct hid_usage *usage, __s32 value)
 143 {
 144         struct hidinput_key_translation *trans;
 145
 146         if (usage->code == KEY_FN) {
 147                 if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
 148                 else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
 149
 150                 input_event(input, usage->type, usage->code, value);
 151
 152                 return 1;
 153         }
 154
 155         if (usbhid_pb_fnmode) {
 156                 int do_translate;
 157
 158                 trans = find_translation(powerbook_fn_keys, usage->code);
 159                 if (trans) {
 160                         if (test_bit(usage->code, hid->pb_pressed_fn))
 161                                 do_translate = 1;
 162                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
 163                                 do_translate =
 164                                         (usbhid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
 165                                         (usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
 166                         else
 167                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
 168
 169                         if (do_translate) {
 170                                 if (value)
 171                                         set_bit(usage->code, hid->pb_pressed_fn);
 172                                 else
 173                                         clear_bit(usage->code, hid->pb_pressed_fn);
 174
 175                                 input_event(input, usage->type, trans->to, value);
 176
 177                                 return 1;
 178                         }
 179                 }
 180
 181                 if (test_bit(usage->code, hid->pb_pressed_numlock) ||
 182                     test_bit(LED_NUML, input->led)) {
 183                         trans = find_translation(powerbook_numlock_keys, usage->code);
 184
 185                         if (trans) {
 186                                 if (value)
 187                                         set_bit(usage->code, hid->pb_pressed_numlock);
 188                                 else
 189                                         clear_bit(usage->code, hid->pb_pressed_numlock);
 190
 191                                 input_event(input, usage->type, trans->to, value);
 192                         }
 193
 194                         return 1;
 195                 }
 196         }
 197
 198         return 0;
 199 }
 200
 201 static void hidinput_pb_setup(struct input_dev *input)
 202 {
 203         struct hidinput_key_translation *trans;
 204
 205         set_bit(KEY_NUMLOCK, input->keybit);
 206
 207         /* Enable all needed keys */
 208         for (trans = powerbook_fn_keys; trans->from; trans++)
 209                 set_bit(trans->to, input->keybit);
 210
 211         for (trans = powerbook_numlock_keys; trans->from; trans++)
 212                 set_bit(trans->to, input->keybit);
 213 }
 214 #else
 215 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 216                                     struct hid_usage *usage, __s32 value)
 217 {
 218         return 0;
 219 }
 220
 221 static inline void hidinput_pb_setup(struct input_dev *input)
 222 {
 223 }
 224 #endif
 225
 226 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 227                                      struct hid_usage *usage)
 228 {
 229         struct input_dev *input = hidinput->input;
 230         struct hid_device *device = input->private;
 231         int max = 0, code;
 232         unsigned long *bit = NULL;
 233
 234         field->hidinput = hidinput;
 235
 236 #ifdef DEBUG
 237         printk(KERN_DEBUG "Mapping: ");
 238         resolv_usage(usage->hid);
 239         printk(" ---> ");
 240 #endif
 241
 242         if (field->flags & HID_MAIN_ITEM_CONSTANT)
 243                 goto ignore;
 244
 245         switch (usage->hid & HID_USAGE_PAGE) {
 246
 247                 case HID_UP_UNDEFINED:
 248                         goto ignore;
 249
 250                 case HID_UP_KEYBOARD:
 251
 252                         set_bit(EV_REP, input->evbit);
 253
 254                         if ((usage->hid & HID_USAGE) < 256) {
 255                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 256                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 257                         } else
 258                                 map_key(KEY_UNKNOWN);
 259
 260                         break;
 261
 262                 case HID_UP_BUTTON:
 263
 264                         code = ((usage->hid - 1) & 0xf);
 265
 266                         switch (field->application) {
 267                                 case HID_GD_MOUSE:
 268                                 case HID_GD_POINTER:  code += 0x110; break;
 269                                 case HID_GD_JOYSTICK: code += 0x120; break;
 270                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 271                                 default:
 272                                         switch (field->physical) {
 273                                                 case HID_GD_MOUSE:
 274                                                 case HID_GD_POINTER:  code += 0x110; break;
 275                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 276                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 277                                                 default:              code += 0x100;
 278                                         }
 279                         }
 280
 281                         map_key(code);
 282                         break;
 283
 284
 285                 case HID_UP_SIMULATION:
 286
 287                         switch (usage->hid & 0xffff) {
 288                                 case 0xba: map_abs(ABS_RUDDER);   break;
 289                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 290                                 case 0xc4: map_abs(ABS_GAS);      break;
 291                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 292                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 293                                 default:   goto ignore;
 294                         }
 295                         break;
 296
 297                 case HID_UP_GENDESK:
 298
 299                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 300                                 switch (usage->hid & 0xf) {
 301                                         case 0x1: map_key_clear(KEY_POWER);  break;
 302                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 303                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 304                                         default: goto unknown;
 305                                 }
 306                                 break;
 307                         }
 308
 309                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 310                                 switch (usage->hid) {
 311                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 312                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 313                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 314                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 315                                         default: goto unknown;
 316                                 }
 317                                 if (field->dpad) {
 318                                         map_abs(field->dpad);
 319                                         goto ignore;
 320                                 }
 321                                 map_abs(ABS_HAT0X);
 322                                 break;
 323                         }
 324
 325                         switch (usage->hid) {
 326
 327                                 /* These usage IDs map directly to the usage codes. */
 328                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 329                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 330                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 331                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 332                                                 map_rel(usage->hid & 0xf);
 333                                         else
 334                                                 map_abs(usage->hid & 0xf);
 335                                         break;
 336
 337                                 case HID_GD_HATSWITCH:
 338                                         usage->hat_min = field->logical_minimum;
 339                                         usage->hat_max = field->logical_maximum;
 340                                         map_abs(ABS_HAT0X);
 341                                         break;
 342
 343                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 344                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 345
 346                                 default: goto unknown;
 347                         }
 348
 349                         break;
 350
 351                 case HID_UP_LED:
 352                         if (((usage->hid - 1) & 0xffff) >= LED_MAX)
 353                                 goto ignore;
 354                         map_led((usage->hid - 1) & 0xffff);
 355                         break;
 356
 357                 case HID_UP_DIGITIZER:
 358
 359                         switch (usage->hid & 0xff) {
 360
 361                                 case 0x30: /* TipPressure */
 362                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 363                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 364                                                 set_bit(EV_KEY, input->evbit);
 365                                                 set_bit(BTN_TOUCH, input->keybit);
 366                                         }
 367
 368                                         map_abs_clear(ABS_PRESSURE);
 369                                         break;
 370
 371                                 case 0x32: /* InRange */
 372                                         switch (field->physical & 0xff) {
 373                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 374                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 375                                                 default: map_key(BTN_TOOL_PEN); break;
 376                                         }
 377                                         break;
 378
 379                                 case 0x3c: /* Invert */
 380                                         map_key_clear(BTN_TOOL_RUBBER);
 381                                         break;
 382
 383                                 case 0x33: /* Touch */
 384                                 case 0x42: /* TipSwitch */
 385                                 case 0x43: /* TipSwitch2 */
 386                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 387                                         map_key_clear(BTN_TOUCH);
 388                                         break;
 389
 390                                 case 0x44: /* BarrelSwitch */
 391                                         map_key_clear(BTN_STYLUS);
 392                                         break;
 393
 394                                 default:  goto unknown;
 395                         }
 396                         break;
 397
 398                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 399
 400                         switch (usage->hid & HID_USAGE) {
 401                                 case 0x000: goto ignore;
 402                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 403                                 case 0x036: map_key_clear(BTN_MISC);            break;
 404                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 405                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 406                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 407                                 case 0x095: map_key_clear(KEY_HELP);            break;
 408                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 409                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 410                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 411                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 412                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 413                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 414                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 415                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 416                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 417                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 418                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 419                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 420                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 421                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 422                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 423                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 424                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 425                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 426                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 427                                 case 0x192: map_key_clear(KEY_CALC);            break;
 428                                 case 0x194: map_key_clear(KEY_FILE);            break;
 429                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 430                                 case 0x201: map_key_clear(KEY_NEW);             break;
 431                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 432                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 433                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 434                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 435                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 436                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 437                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 438                                 case 0x221: map_key_clear(KEY_FIND);            break;
 439                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 440                                 case 0x224: map_key_clear(KEY_BACK);            break;
 441                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 442                                 case 0x226: map_key_clear(KEY_STOP);            break;
 443                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 444                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 445                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 446                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 447                                 case 0x238: map_rel(REL_HWHEEL);                break;
 448                                 case 0x279: map_key_clear(KEY_REDO);            break;
 449                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 450                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 451                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 452
 453                                 /* Reported on a Cherry Cymotion keyboard */
 454                                 case 0x301: map_key_clear(KEY_PROG1);           break;
 455                                 case 0x302: map_key_clear(KEY_PROG2);           break;
 456                                 case 0x303: map_key_clear(KEY_PROG3);           break;
 457
 458                                 default:    goto ignore;
 459                         }
 460                         break;
 461
 462                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 463
 464                         set_bit(EV_REP, input->evbit);
 465                         switch (usage->hid & HID_USAGE) {
 466                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 467                                 case 0x070: map_key_clear(KEY_HP);              break;
 468                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 469                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 470                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 471                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 472                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 473                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 474                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 475                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 476                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 477                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 478                                 default:    goto ignore;
 479                         }
 480                         break;
 481
 482                 case HID_UP_MSVENDOR:
 483                         goto ignore;
 484
 485                 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
 486
 487                         set_bit(EV_REP, input->evbit);
 488                         switch(usage->hid & HID_USAGE) {
 489                                 case 0x003:
 490                                         /* The fn key on Apple PowerBooks */
 491                                         map_key_clear(KEY_FN);
 492                                         hidinput_pb_setup(input);
 493                                         break;
 494
 495                                 default:    goto ignore;
 496                         }
 497                         break;
 498
 499                 case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
 500
 501                         set_bit(EV_REP, input->evbit);
 502                         switch(usage->hid & HID_USAGE) {
 503                                 case 0x004: map_key_clear(KEY_AGAIN);           break;
 504                                 case 0x00d: map_key_clear(KEY_HOME);            break;
 505                                 case 0x024: map_key_clear(KEY_SHUFFLE);         break;
 506                                 case 0x025: map_key_clear(KEY_TV);              break;
 507                                 case 0x026: map_key_clear(KEY_MENU);            break;
 508                                 case 0x031: map_key_clear(KEY_AUDIO);           break;
 509                                 case 0x032: map_key_clear(KEY_TEXT);            break;
 510                                 case 0x033: map_key_clear(KEY_LAST);            break;
 511                                 case 0x047: map_key_clear(KEY_MP3);             break;
 512                                 case 0x048: map_key_clear(KEY_DVD);             break;
 513                                 case 0x049: map_key_clear(KEY_MEDIA);           break;
 514                                 case 0x04a: map_key_clear(KEY_VIDEO);           break;
 515                                 case 0x04b: map_key_clear(KEY_ANGLE);           break;
 516                                 case 0x04c: map_key_clear(KEY_LANGUAGE);        break;
 517                                 case 0x04d: map_key_clear(KEY_SUBTITLE);        break;
 518                                 case 0x051: map_key_clear(KEY_RED);             break;
 519                                 case 0x052: map_key_clear(KEY_CLOSE);           break;
 520                                 default:    goto ignore;
 521                         }
 522                         break;
 523
 524                 case HID_UP_PID:
 525
 526                         switch(usage->hid & HID_USAGE) {
 527                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 528                                 default: goto ignore;
 529                         }
 530                         break;
 531
 532                 default:
 533                 unknown:
 534                         if (field->report_size == 1) {
 535                                 if (field->report->type == HID_OUTPUT_REPORT) {
 536                                         map_led(LED_MISC);
 537                                         break;
 538                                 }
 539                                 map_key(BTN_MISC);
 540                                 break;
 541                         }
 542                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 543                                 map_rel(REL_MISC);
 544                                 break;
 545                         }
 546                         map_abs(ABS_MISC);
 547                         break;
 548         }
 549
 550         if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
 551                 if (usage->hid == HID_GD_Z)
 552                         map_rel(REL_HWHEEL);
 553                 else if (usage->code == BTN_1)
 554                         map_key(BTN_2);
 555                 else if (usage->code == BTN_2)
 556                         map_key(BTN_1);
 557         }
 558
 559         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
 560                  (usage->type == EV_REL) && (usage->code == REL_WHEEL))
 561                         set_bit(REL_HWHEEL, bit);
 562
 563         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 564                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 565                 goto ignore;
 566
 567         if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
 568             usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
 569                 field->flags &= ~HID_MAIN_ITEM_RELATIVE;
 570
 571         set_bit(usage->type, input->evbit);
 572
 573         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 574                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 575
 576         if (usage->code > max)
 577                 goto ignore;
 578
 579
 580         if (usage->type == EV_ABS) {
 581
 582                 int a = field->logical_minimum;
 583                 int b = field->logical_maximum;
 584
 585                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 586                         a = field->logical_minimum = 0;
 587                         b = field->logical_maximum = 255;
 588                 }
 589
 590                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 591                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 592                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 593
 594         }
 595
 596         if (usage->type == EV_ABS &&
 597             (usage->hat_min < usage->hat_max || usage->hat_dir)) {
 598                 int i;
 599                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 600                         input_set_abs_params(input, i, -1, 1, 0, 0);
 601                         set_bit(i, input->absbit);
 602                 }
 603                 if (usage->hat_dir && !field->dpad)
 604                         field->dpad = usage->code;
 605         }
 606
 607 #ifdef DEBUG
 608         resolv_event(usage->type, usage->code);
 609         printk("\n");
 610 #endif
 611         return;
 612
 613 ignore:
 614 #ifdef DEBUG
 615         printk("IGNORED\n");
 616 #endif
 617         return;
 618 }
 619
 620 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 621 {
 622         struct input_dev *input;
 623         int *quirks = &hid->quirks;
 624
 625         if (!field->hidinput)
 626                 return;
 627
 628         input = field->hidinput->input;
 629
 630         if (!usage->type)
 631                 return;
 632
 633         if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 634                 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
 635                 if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 636                 else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 637                 return;
 638         }
 639
 640         if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
 641                 input_event(input, usage->type, usage->code, -value);
 642                 return;
 643         }
 644
 645         if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
 646                 input_event(input, usage->type, REL_HWHEEL, value);
 647                 return;
 648         }
 649
 650         if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
 651                 return;
 652
 653         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 654                 int hat_dir = usage->hat_dir;
 655                 if (!hat_dir)
 656                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 657                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 658                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 659                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 660                 return;
 661         }
 662
 663         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 664                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 665                 return;
 666         }
 667
 668         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 669                 if (value) {
 670                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 671                         return;
 672                 }
 673                 input_event(input, usage->type, usage->code, 0);
 674                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 675                 return;
 676         }
 677
 678         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 679                 int a = field->logical_minimum;
 680                 int b = field->logical_maximum;
 681                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 682         }
 683
 684         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 685                 dbg("Maximum Effects - %d",value);
 686                 return;
 687         }
 688
 689         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 690                 dbg("PID Pool Report\n");
 691                 return;
 692         }
 693
 694         if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 695                 return;
 696
 697         input_event(input, usage->type, usage->code, value);
 698
 699         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 700                 input_event(input, usage->type, usage->code, 0);
 701 }
 702
 703 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 704 {
 705         struct hid_input *hidinput;
 706
 707         list_for_each_entry(hidinput, &hid->inputs, list)
 708                 input_sync(hidinput->input);
 709 }
 710
 711 static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
 712 {
 713         struct hid_report *report;
 714         int i, j;
 715
 716         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
 717                 for (i = 0; i < report->maxfield; i++) {
 718                         *field = report->field[i];
 719                         for (j = 0; j < (*field)->maxusage; j++)
 720                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
 721                                         return j;
 722                 }
 723         }
 724         return -1;
 725 }
 726
 727 static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 728 {
 729         struct hid_device *hid = dev->private;
 730         struct hid_field *field;
 731         int offset;
 732
 733         if (type == EV_FF)
 734                 return input_ff_event(dev, type, code, value);
 735
 736         if (type != EV_LED)
 737                 return -1;
 738
 739         if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
 740                 warn("event field not found");
 741                 return -1;
 742         }
 743
 744         hid_set_field(field, offset, value);
 745         hid_submit_report(hid, field->report, USB_DIR_OUT);
 746
 747         return 0;
 748 }
 749
 750 static int hidinput_open(struct input_dev *dev)
 751 {
 752         struct hid_device *hid = dev->private;
 753         return hid_open(hid);
 754 }
 755
 756 static void hidinput_close(struct input_dev *dev)
 757 {
 758         struct hid_device *hid = dev->private;
 759         hid_close(hid);
 760 }
 761
 762 /*
 763  * Register the input device; print a message.
 764  * Configure the input layer interface
 765  * Read all reports and initialize the absolute field values.
 766  */
 767
 768 int hidinput_connect(struct hid_device *hid)
 769 {
 770         struct usb_device *dev = hid->dev;
 771         struct hid_report *report;
 772         struct hid_input *hidinput = NULL;
 773         struct input_dev *input_dev;
 774         int i, j, k;
 775
 776         INIT_LIST_HEAD(&hid->inputs);
 777
 778         for (i = 0; i < hid->maxcollection; i++)
 779                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
 780                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
 781                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
 782                                 break;
 783
 784         if (i == hid->maxcollection)
 785                 return -1;
 786
 787         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
 788                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 789
 790                         if (!report->maxfield)
 791                                 continue;
 792
 793                         if (!hidinput) {
 794                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
 795                                 input_dev = input_allocate_device();
 796                                 if (!hidinput || !input_dev) {
 797                                         kfree(hidinput);
 798                                         input_free_device(input_dev);
 799                                         err("Out of memory during hid input probe");
 800                                         return -1;
 801                                 }
 802
 803                                 input_dev->private = hid;
 804                                 input_dev->event = hidinput_input_event;
 805                                 input_dev->open = hidinput_open;
 806                                 input_dev->close = hidinput_close;
 807
 808                                 input_dev->name = hid->name;
 809                                 input_dev->phys = hid->phys;
 810                                 input_dev->uniq = hid->uniq;
 811                                 usb_to_input_id(dev, &input_dev->id);
 812                                 input_dev->cdev.dev = &hid->intf->dev;
 813
 814                                 hidinput->input = input_dev;
 815                                 list_add_tail(&hidinput->list, &hid->inputs);
 816                         }
 817
 818                         for (i = 0; i < report->maxfield; i++)
 819                                 for (j = 0; j < report->field[i]->maxusage; j++)
 820                                         hidinput_configure_usage(hidinput, report->field[i],
 821                                                                  report->field[i]->usage + j);
 822
 823                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
 824                                 /* This will leave hidinput NULL, so that it
 825                                  * allocates another one if we have more inputs on
 826                                  * the same interface. Some devices (e.g. Happ's
 827                                  * UGCI) cram a lot of unrelated inputs into the
 828                                  * same interface. */
 829                                 hidinput->report = report;
 830                                 input_register_device(hidinput->input);
 831                                 hidinput = NULL;
 832                         }
 833                 }
 834
 835         /* This only gets called when we are a single-input (most of the
 836          * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
 837          * only useful in this case, and not for multi-input quirks. */
 838         if (hidinput) {
 839                 hid_ff_init(hid);
 840                 input_register_device(hidinput->input);
 841         }
 842
 843         return 0;
 844 }
 845
 846 void hidinput_disconnect(struct hid_device *hid)
 847 {
 848         struct hid_input *hidinput, *next;
 849
 850         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
 851                 list_del(&hidinput->list);
 852                 input_unregister_device(hidinput->input);
 853                 kfree(hidinput);
 854         }
 855 }