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/input.h>
  33 #include <linux/usb.h>
  34 #include <linux/usb_input.h>
  35
  36 #undef DEBUG
  37
  38 #include "hid.h"
  39
  40 #define unk     KEY_UNKNOWN
  41
  42 static const unsigned char hid_keyboard[256] = {
  43           0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
  44          50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
  45           4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
  46          27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
  47          65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
  48         105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
  49          72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
  50         191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
  51         115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
  52         122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  53         unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
  54         unk,unk,unk,unk,unk,unk,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          29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
  58         150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
  59 };
  60
  61 static const struct {
  62         __s32 x;
  63         __s32 y;
  64 }  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
  65
  66 #define map_abs(c)      do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
  67 #define map_rel(c)      do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
  68 #define map_key(c)      do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
  69 #define map_led(c)      do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
  70 #define map_ff(c)       do { usage->code = c; usage->type = EV_FF;  bit = input->ffbit;  max =  FF_MAX; } while (0)
  71
  72 #define map_abs_clear(c)        do { map_abs(c); clear_bit(c, bit); } while (0)
  73 #define map_key_clear(c)        do { map_key(c); clear_bit(c, bit); } while (0)
  74 #define map_ff_effect(c)        do { set_bit(c, input->ffbit); } while (0)
  75
  76 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
  77                                      struct hid_usage *usage)
  78 {
  79         struct input_dev *input = hidinput->input;
  80         struct hid_device *device = input->private;
  81         int max = 0, code;
  82         unsigned long *bit = NULL;
  83
  84         field->hidinput = hidinput;
  85
  86 #ifdef DEBUG
  87         printk(KERN_DEBUG "Mapping: ");
  88         resolv_usage(usage->hid);
  89         printk(" ---> ");
  90 #endif
  91
  92         if (field->flags & HID_MAIN_ITEM_CONSTANT)
  93                 goto ignore;
  94
  95         switch (usage->hid & HID_USAGE_PAGE) {
  96
  97                 case HID_UP_UNDEFINED:
  98                         goto ignore;
  99
 100                 case HID_UP_KEYBOARD:
 101
 102                         set_bit(EV_REP, input->evbit);
 103
 104                         if ((usage->hid & HID_USAGE) < 256) {
 105                                 if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
 106                                 map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
 107                         } else
 108                                 map_key(KEY_UNKNOWN);
 109
 110                         break;
 111
 112                 case HID_UP_BUTTON:
 113
 114                         code = ((usage->hid - 1) & 0xf);
 115
 116                         switch (field->application) {
 117                                 case HID_GD_MOUSE:
 118                                 case HID_GD_POINTER:  code += 0x110; break;
 119                                 case HID_GD_JOYSTICK: code += 0x120; break;
 120                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 121                                 default:
 122                                         switch (field->physical) {
 123                                                 case HID_GD_MOUSE:
 124                                                 case HID_GD_POINTER:  code += 0x110; break;
 125                                                 case HID_GD_JOYSTICK: code += 0x120; break;
 126                                                 case HID_GD_GAMEPAD:  code += 0x130; break;
 127                                                 default:              code += 0x100;
 128                                         }
 129                         }
 130
 131                         map_key(code);
 132                         break;
 133
 134
 135                 case HID_UP_SIMULATION:
 136
 137                         switch (usage->hid & 0xffff) {
 138                                 case 0xba: map_abs(ABS_RUDDER);   break;
 139                                 case 0xbb: map_abs(ABS_THROTTLE); break;
 140                                 case 0xc4: map_abs(ABS_GAS);      break;
 141                                 case 0xc5: map_abs(ABS_BRAKE);    break;
 142                                 case 0xc8: map_abs(ABS_WHEEL);    break;
 143                                 default:   goto ignore;
 144                         }
 145                         break;
 146
 147                 case HID_UP_GENDESK:
 148
 149                         if ((usage->hid & 0xf0) == 0x80) {      /* SystemControl */
 150                                 switch (usage->hid & 0xf) {
 151                                         case 0x1: map_key_clear(KEY_POWER);  break;
 152                                         case 0x2: map_key_clear(KEY_SLEEP);  break;
 153                                         case 0x3: map_key_clear(KEY_WAKEUP); break;
 154                                         default: goto unknown;
 155                                 }
 156                                 break;
 157                         }
 158
 159                         if ((usage->hid & 0xf0) == 0x90) {      /* D-pad */
 160                                 switch (usage->hid) {
 161                                         case HID_GD_UP:    usage->hat_dir = 1; break;
 162                                         case HID_GD_DOWN:  usage->hat_dir = 5; break;
 163                                         case HID_GD_RIGHT: usage->hat_dir = 3; break;
 164                                         case HID_GD_LEFT:  usage->hat_dir = 7; break;
 165                                         default: goto unknown;
 166                                 }
 167                                 if (field->dpad) {
 168                                         map_abs(field->dpad);
 169                                         goto ignore;
 170                                 }
 171                                 map_abs(ABS_HAT0X);
 172                                 break;
 173                         }
 174
 175                         switch (usage->hid) {
 176
 177                                 /* These usage IDs map directly to the usage codes. */
 178                                 case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
 179                                 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 180                                 case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 181                                         if (field->flags & HID_MAIN_ITEM_RELATIVE)
 182                                                 map_rel(usage->hid & 0xf);
 183                                         else
 184                                                 map_abs(usage->hid & 0xf);
 185                                         break;
 186
 187                                 case HID_GD_HATSWITCH:
 188                                         usage->hat_min = field->logical_minimum;
 189                                         usage->hat_max = field->logical_maximum;
 190                                         map_abs(ABS_HAT0X);
 191                                         break;
 192
 193                                 case HID_GD_START:      map_key_clear(BTN_START);       break;
 194                                 case HID_GD_SELECT:     map_key_clear(BTN_SELECT);      break;
 195
 196                                 default: goto unknown;
 197                         }
 198
 199                         break;
 200
 201                 case HID_UP_LED:
 202                         if (((usage->hid - 1) & 0xffff) >= LED_MAX)
 203                                 goto ignore;
 204                         map_led((usage->hid - 1) & 0xffff);
 205                         break;
 206
 207                 case HID_UP_DIGITIZER:
 208
 209                         switch (usage->hid & 0xff) {
 210
 211                                 case 0x30: /* TipPressure */
 212                                         if (!test_bit(BTN_TOUCH, input->keybit)) {
 213                                                 device->quirks |= HID_QUIRK_NOTOUCH;
 214                                                 set_bit(EV_KEY, input->evbit);
 215                                                 set_bit(BTN_TOUCH, input->keybit);
 216                                         }
 217
 218                                         map_abs_clear(ABS_PRESSURE);
 219                                         break;
 220
 221                                 case 0x32: /* InRange */
 222                                         switch (field->physical & 0xff) {
 223                                                 case 0x21: map_key(BTN_TOOL_MOUSE); break;
 224                                                 case 0x22: map_key(BTN_TOOL_FINGER); break;
 225                                                 default: map_key(BTN_TOOL_PEN); break;
 226                                         }
 227                                         break;
 228
 229                                 case 0x3c: /* Invert */
 230                                         map_key_clear(BTN_TOOL_RUBBER);
 231                                         break;
 232
 233                                 case 0x33: /* Touch */
 234                                 case 0x42: /* TipSwitch */
 235                                 case 0x43: /* TipSwitch2 */
 236                                         device->quirks &= ~HID_QUIRK_NOTOUCH;
 237                                         map_key_clear(BTN_TOUCH);
 238                                         break;
 239
 240                                 case 0x44: /* BarrelSwitch */
 241                                         map_key_clear(BTN_STYLUS);
 242                                         break;
 243
 244                                 default:  goto unknown;
 245                         }
 246                         break;
 247
 248                 case HID_UP_CONSUMER:   /* USB HUT v1.1, pages 56-62 */
 249
 250                         switch (usage->hid & HID_USAGE) {
 251                                 case 0x000: goto ignore;
 252                                 case 0x034: map_key_clear(KEY_SLEEP);           break;
 253                                 case 0x036: map_key_clear(BTN_MISC);            break;
 254                                 case 0x045: map_key_clear(KEY_RADIO);           break;
 255                                 case 0x08a: map_key_clear(KEY_WWW);             break;
 256                                 case 0x08d: map_key_clear(KEY_PROGRAM);         break;
 257                                 case 0x095: map_key_clear(KEY_HELP);            break;
 258                                 case 0x09c: map_key_clear(KEY_CHANNELUP);       break;
 259                                 case 0x09d: map_key_clear(KEY_CHANNELDOWN);     break;
 260                                 case 0x0b0: map_key_clear(KEY_PLAY);            break;
 261                                 case 0x0b1: map_key_clear(KEY_PAUSE);           break;
 262                                 case 0x0b2: map_key_clear(KEY_RECORD);          break;
 263                                 case 0x0b3: map_key_clear(KEY_FASTFORWARD);     break;
 264                                 case 0x0b4: map_key_clear(KEY_REWIND);          break;
 265                                 case 0x0b5: map_key_clear(KEY_NEXTSONG);        break;
 266                                 case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);    break;
 267                                 case 0x0b7: map_key_clear(KEY_STOPCD);          break;
 268                                 case 0x0b8: map_key_clear(KEY_EJECTCD);         break;
 269                                 case 0x0cd: map_key_clear(KEY_PLAYPAUSE);       break;
 270                                 case 0x0e0: map_abs_clear(ABS_VOLUME);          break;
 271                                 case 0x0e2: map_key_clear(KEY_MUTE);            break;
 272                                 case 0x0e5: map_key_clear(KEY_BASSBOOST);       break;
 273                                 case 0x0e9: map_key_clear(KEY_VOLUMEUP);        break;
 274                                 case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);      break;
 275                                 case 0x183: map_key_clear(KEY_CONFIG);          break;
 276                                 case 0x18a: map_key_clear(KEY_MAIL);            break;
 277                                 case 0x192: map_key_clear(KEY_CALC);            break;
 278                                 case 0x194: map_key_clear(KEY_FILE);            break;
 279                                 case 0x1a7: map_key_clear(KEY_DOCUMENTS);       break;
 280                                 case 0x201: map_key_clear(KEY_NEW);             break;
 281                                 case 0x207: map_key_clear(KEY_SAVE);            break;
 282                                 case 0x208: map_key_clear(KEY_PRINT);           break;
 283                                 case 0x209: map_key_clear(KEY_PROPS);           break;
 284                                 case 0x21a: map_key_clear(KEY_UNDO);            break;
 285                                 case 0x21b: map_key_clear(KEY_COPY);            break;
 286                                 case 0x21c: map_key_clear(KEY_CUT);             break;
 287                                 case 0x21d: map_key_clear(KEY_PASTE);           break;
 288                                 case 0x221: map_key_clear(KEY_FIND);            break;
 289                                 case 0x223: map_key_clear(KEY_HOMEPAGE);        break;
 290                                 case 0x224: map_key_clear(KEY_BACK);            break;
 291                                 case 0x225: map_key_clear(KEY_FORWARD);         break;
 292                                 case 0x226: map_key_clear(KEY_STOP);            break;
 293                                 case 0x227: map_key_clear(KEY_REFRESH);         break;
 294                                 case 0x22a: map_key_clear(KEY_BOOKMARKS);       break;
 295                                 case 0x233: map_key_clear(KEY_SCROLLUP);        break;
 296                                 case 0x234: map_key_clear(KEY_SCROLLDOWN);      break;
 297                                 case 0x238: map_rel(REL_HWHEEL);                break;
 298                                 case 0x279: map_key_clear(KEY_REDO);            break;
 299                                 case 0x289: map_key_clear(KEY_REPLY);           break;
 300                                 case 0x28b: map_key_clear(KEY_FORWARDMAIL);     break;
 301                                 case 0x28c: map_key_clear(KEY_SEND);            break;
 302
 303                                 /* Reported on a Cherry Cymotion keyboard */
 304                                 case 0x301: map_key_clear(KEY_PROG1);           break;
 305                                 case 0x302: map_key_clear(KEY_PROG2);           break;
 306                                 case 0x303: map_key_clear(KEY_PROG3);           break;
 307
 308                                 default:    goto ignore;
 309                         }
 310                         break;
 311
 312                 case HID_UP_HPVENDOR:   /* Reported on a Dutch layout HP5308 */
 313
 314                         set_bit(EV_REP, input->evbit);
 315                         switch (usage->hid & HID_USAGE) {
 316                                 case 0x021: map_key_clear(KEY_PRINT);           break;
 317                                 case 0x070: map_key_clear(KEY_HP);              break;
 318                                 case 0x071: map_key_clear(KEY_CAMERA);          break;
 319                                 case 0x072: map_key_clear(KEY_SOUND);           break;
 320                                 case 0x073: map_key_clear(KEY_QUESTION);        break;
 321                                 case 0x080: map_key_clear(KEY_EMAIL);           break;
 322                                 case 0x081: map_key_clear(KEY_CHAT);            break;
 323                                 case 0x082: map_key_clear(KEY_SEARCH);          break;
 324                                 case 0x083: map_key_clear(KEY_CONNECT);         break;
 325                                 case 0x084: map_key_clear(KEY_FINANCE);         break;
 326                                 case 0x085: map_key_clear(KEY_SPORT);           break;
 327                                 case 0x086: map_key_clear(KEY_SHOP);            break;
 328                                 default:    goto ignore;
 329                         }
 330                         break;
 331
 332                 case HID_UP_MSVENDOR:
 333                         goto ignore;
 334
 335                 case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
 336
 337                         set_bit(EV_REP, input->evbit);
 338                         switch(usage->hid & HID_USAGE) {
 339                                 case 0x003: map_key_clear(KEY_FN);              break;
 340                                 default:    goto ignore;
 341                         }
 342                         break;
 343
 344                 case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
 345
 346                         set_bit(EV_REP, input->evbit);
 347                         switch(usage->hid & HID_USAGE) {
 348                                 case 0x004: map_key_clear(KEY_AGAIN);           break;
 349                                 case 0x00d: map_key_clear(KEY_HOME);            break;
 350                                 case 0x024: map_key_clear(KEY_SHUFFLE);         break;
 351                                 case 0x025: map_key_clear(KEY_TV);              break;
 352                                 case 0x026: map_key_clear(KEY_MENU);            break;
 353                                 case 0x031: map_key_clear(KEY_AUDIO);           break;
 354                                 case 0x032: map_key_clear(KEY_SUBTITLE);        break;
 355                                 case 0x033: map_key_clear(KEY_LAST);            break;
 356                                 case 0x047: map_key_clear(KEY_MP3);             break;
 357                                 case 0x048: map_key_clear(KEY_DVD);             break;
 358                                 case 0x049: map_key_clear(KEY_MEDIA);           break;
 359                                 case 0x04a: map_key_clear(KEY_VIDEO);           break;
 360                                 case 0x04b: map_key_clear(KEY_ANGLE);           break;
 361                                 case 0x04c: map_key_clear(KEY_LANGUAGE);        break;
 362                                 case 0x04d: map_key_clear(KEY_SUBTITLE);        break;
 363                                 case 0x051: map_key_clear(KEY_RED);             break;
 364                                 case 0x052: map_key_clear(KEY_CLOSE);           break;
 365                                 default:    goto ignore;
 366                         }
 367                         break;
 368
 369                 case HID_UP_PID:
 370
 371                         set_bit(EV_FF, input->evbit);
 372                         switch(usage->hid & HID_USAGE) {
 373                                 case 0x26: map_ff_effect(FF_CONSTANT);  goto ignore;
 374                                 case 0x27: map_ff_effect(FF_RAMP);      goto ignore;
 375                                 case 0x28: map_ff_effect(FF_CUSTOM);    goto ignore;
 376                                 case 0x30: map_ff_effect(FF_SQUARE);    map_ff_effect(FF_PERIODIC); goto ignore;
 377                                 case 0x31: map_ff_effect(FF_SINE);      map_ff_effect(FF_PERIODIC); goto ignore;
 378                                 case 0x32: map_ff_effect(FF_TRIANGLE);  map_ff_effect(FF_PERIODIC); goto ignore;
 379                                 case 0x33: map_ff_effect(FF_SAW_UP);    map_ff_effect(FF_PERIODIC); goto ignore;
 380                                 case 0x34: map_ff_effect(FF_SAW_DOWN);  map_ff_effect(FF_PERIODIC); goto ignore;
 381                                 case 0x40: map_ff_effect(FF_SPRING);    goto ignore;
 382                                 case 0x41: map_ff_effect(FF_DAMPER);    goto ignore;
 383                                 case 0x42: map_ff_effect(FF_INERTIA);   goto ignore;
 384                                 case 0x43: map_ff_effect(FF_FRICTION);  goto ignore;
 385                                 case 0x7e: map_ff(FF_GAIN);             break;
 386                                 case 0x83: input->ff_effects_max = field->value[0]; goto ignore;
 387                                 case 0x98: map_ff(FF_AUTOCENTER);       break;
 388                                 case 0xa4: map_key_clear(BTN_DEAD);     break;
 389                                 default: goto ignore;
 390                         }
 391                         break;
 392
 393                 default:
 394                 unknown:
 395                         if (field->report_size == 1) {
 396                                 if (field->report->type == HID_OUTPUT_REPORT) {
 397                                         map_led(LED_MISC);
 398                                         break;
 399                                 }
 400                                 map_key(BTN_MISC);
 401                                 break;
 402                         }
 403                         if (field->flags & HID_MAIN_ITEM_RELATIVE) {
 404                                 map_rel(REL_MISC);
 405                                 break;
 406                         }
 407                         map_abs(ABS_MISC);
 408                         break;
 409         }
 410
 411         set_bit(usage->type, input->evbit);
 412
 413         while (usage->code <= max && test_and_set_bit(usage->code, bit))
 414                 usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 415
 416         if (usage->code > max)
 417                 goto ignore;
 418
 419         if (((device->quirks & (HID_QUIRK_2WHEEL_POWERMOUSE)) && (usage->hid == 0x00010032)))
 420                 map_rel(REL_HWHEEL);
 421
 422         if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
 423                  (usage->type == EV_REL) && (usage->code == REL_WHEEL))
 424                         set_bit(REL_HWHEEL, bit);
 425
 426         if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 427                 || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
 428                 goto ignore;
 429
 430         if (usage->type == EV_ABS) {
 431
 432                 int a = field->logical_minimum;
 433                 int b = field->logical_maximum;
 434
 435                 if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
 436                         a = field->logical_minimum = 0;
 437                         b = field->logical_maximum = 255;
 438                 }
 439
 440                 if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
 441                         input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
 442                 else    input_set_abs_params(input, usage->code, a, b, 0, 0);
 443
 444         }
 445
 446         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 447                 int i;
 448                 for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
 449                         input_set_abs_params(input, i, -1, 1, 0, 0);
 450                         set_bit(i, input->absbit);
 451                 }
 452                 if (usage->hat_dir && !field->dpad)
 453                         field->dpad = usage->code;
 454         }
 455
 456 #ifdef DEBUG
 457         resolv_event(usage->type, usage->code);
 458         printk("\n");
 459 #endif
 460         return;
 461
 462 ignore:
 463 #ifdef DEBUG
 464         printk("IGNORED\n");
 465 #endif
 466         return;
 467 }
 468
 469 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs)
 470 {
 471         struct input_dev *input;
 472         int *quirks = &hid->quirks;
 473
 474         if (!field->hidinput)
 475                 return;
 476
 477         input = field->hidinput->input;
 478
 479         input_regs(input, regs);
 480
 481         if (!usage->type)
 482                 return;
 483
 484         if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
 485                 || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
 486                 if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 487                 else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
 488                 return;
 489         }
 490
 491         if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
 492                 input_event(input, usage->type, REL_HWHEEL, value);
 493                 return;
 494         }
 495
 496         if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 497                 int hat_dir = usage->hat_dir;
 498                 if (!hat_dir)
 499                         hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 500                 if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
 501                 input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
 502                 input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
 503                 return;
 504         }
 505
 506         if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
 507                 *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
 508                 return;
 509         }
 510
 511         if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
 512                 if (value) {
 513                         input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
 514                         return;
 515                 }
 516                 input_event(input, usage->type, usage->code, 0);
 517                 input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
 518                 return;
 519         }
 520
 521         if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
 522                 int a = field->logical_minimum;
 523                 int b = field->logical_maximum;
 524                 input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
 525         }
 526
 527         if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
 528                 input->ff_effects_max = value;
 529                 dbg("Maximum Effects - %d",input->ff_effects_max);
 530                 return;
 531         }
 532
 533         if (usage->hid == (HID_UP_PID | 0x7fUL)) {
 534                 dbg("PID Pool Report\n");
 535                 return;
 536         }
 537
 538         if((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 539                 return;
 540
 541         input_event(input, usage->type, usage->code, value);
 542
 543         if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
 544                 input_event(input, usage->type, usage->code, 0);
 545 }
 546
 547 void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
 548 {
 549         struct hid_input *hidinput;
 550
 551         list_for_each_entry(hidinput, &hid->inputs, list)
 552                 input_sync(hidinput->input);
 553 }
 554
 555 static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
 556 {
 557         struct hid_report *report;
 558         int i, j;
 559
 560         list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
 561                 for (i = 0; i < report->maxfield; i++) {
 562                         *field = report->field[i];
 563                         for (j = 0; j < (*field)->maxusage; j++)
 564                                 if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
 565                                         return j;
 566                 }
 567         }
 568         return -1;
 569 }
 570
 571 static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 572 {
 573         struct hid_device *hid = dev->private;
 574         struct hid_field *field;
 575         int offset;
 576
 577         if (type == EV_FF)
 578                 return hid_ff_event(hid, dev, type, code, value);
 579
 580         if (type != EV_LED)
 581                 return -1;
 582
 583         if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
 584                 warn("event field not found");
 585                 return -1;
 586         }
 587
 588         hid_set_field(field, offset, value);
 589         hid_submit_report(hid, field->report, USB_DIR_OUT);
 590
 591         return 0;
 592 }
 593
 594 static int hidinput_open(struct input_dev *dev)
 595 {
 596         struct hid_device *hid = dev->private;
 597         return hid_open(hid);
 598 }
 599
 600 static void hidinput_close(struct input_dev *dev)
 601 {
 602         struct hid_device *hid = dev->private;
 603         hid_close(hid);
 604 }
 605
 606 /*
 607  * Register the input device; print a message.
 608  * Configure the input layer interface
 609  * Read all reports and initialize the absolute field values.
 610  */
 611
 612 int hidinput_connect(struct hid_device *hid)
 613 {
 614         struct usb_device *dev = hid->dev;
 615         struct hid_report *report;
 616         struct hid_input *hidinput = NULL;
 617         struct input_dev *input_dev;
 618         int i, j, k;
 619
 620         INIT_LIST_HEAD(&hid->inputs);
 621
 622         for (i = 0; i < hid->maxcollection; i++)
 623                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
 624                     hid->collection[i].type == HID_COLLECTION_PHYSICAL)
 625                         if (IS_INPUT_APPLICATION(hid->collection[i].usage))
 626                                 break;
 627
 628         if (i == hid->maxcollection)
 629                 return -1;
 630
 631         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
 632                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 633
 634                         if (!report->maxfield)
 635                                 continue;
 636
 637                         if (!hidinput) {
 638                                 hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
 639                                 input_dev = input_allocate_device();
 640                                 if (!hidinput || !input_dev) {
 641                                         kfree(hidinput);
 642                                         input_free_device(input_dev);
 643                                         err("Out of memory during hid input probe");
 644                                         return -1;
 645                                 }
 646
 647                                 input_dev->private = hid;
 648                                 input_dev->event = hidinput_input_event;
 649                                 input_dev->open = hidinput_open;
 650                                 input_dev->close = hidinput_close;
 651
 652                                 input_dev->name = hid->name;
 653                                 input_dev->phys = hid->phys;
 654                                 input_dev->uniq = hid->uniq;
 655                                 usb_to_input_id(dev, &input_dev->id);
 656                                 input_dev->cdev.dev = &hid->intf->dev;
 657
 658                                 hidinput->input = input_dev;
 659                                 list_add_tail(&hidinput->list, &hid->inputs);
 660                         }
 661
 662                         for (i = 0; i < report->maxfield; i++)
 663                                 for (j = 0; j < report->field[i]->maxusage; j++)
 664                                         hidinput_configure_usage(hidinput, report->field[i],
 665                                                                  report->field[i]->usage + j);
 666
 667                         if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
 668                                 /* This will leave hidinput NULL, so that it
 669                                  * allocates another one if we have more inputs on
 670                                  * the same interface. Some devices (e.g. Happ's
 671                                  * UGCI) cram a lot of unrelated inputs into the
 672                                  * same interface. */
 673                                 hidinput->report = report;
 674                                 input_register_device(hidinput->input);
 675                                 hidinput = NULL;
 676                         }
 677                 }
 678
 679         /* This only gets called when we are a single-input (most of the
 680          * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
 681          * only useful in this case, and not for multi-input quirks. */
 682         if (hidinput) {
 683                 hid_ff_init(hid);
 684                 input_register_device(hidinput->input);
 685         }
 686
 687         return 0;
 688 }
 689
 690 void hidinput_disconnect(struct hid_device *hid)
 691 {
 692         struct hid_input *hidinput, *next;
 693
 694         list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
 695                 list_del(&hidinput->list);
 696                 input_unregister_device(hidinput->input);
 697                 kfree(hidinput);
 698         }
 699 }