linux/in_evdev.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <sys/ioctl.h>
   8 #include <unistd.h>
   9 #include <linux/input.h>
  10 #include <errno.h>
  11
  12 #include "../common/input.h"
  13 #include "in_evdev.h"
  14
  15 typedef struct {
  16         int fd;
  17         int *kbits;
  18         int abs_min_x;
  19         int abs_max_x;
  20         int abs_min_y;
  21         int abs_max_y;
  22         int abs_lzone;
  23         int abs_lastx;
  24         int abs_lasty;
  25         int kc_first;
  26         int kc_last;
  27 } in_evdev_t;
  28
  29 #ifndef KEY_CNT
  30 #define KEY_CNT (KEY_MAX + 1)
  31 #endif
  32
  33 #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
  34         (1 << ((x) & (sizeof(keybits[0])*8-1))))
  35
  36 #define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \
  37         (1 << ((x) & (sizeof(keybits[0])*8-1))))
  38
  39 #define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
  40         ~(1 << ((x) & (sizeof(keybits[0])*8-1))))
  41
  42 static const char * const in_evdev_prefix = "evdev:";
  43 static const char * const in_evdev_keys[KEY_CNT] = {
  44         [0 ... KEY_MAX] = NULL,
  45         [KEY_RESERVED] = "Reserved",            [KEY_ESC] = "Esc",
  46         [KEY_1] = "1",                          [KEY_2] = "2",
  47         [KEY_3] = "3",                          [KEY_4] = "4",
  48         [KEY_5] = "5",                          [KEY_6] = "6",
  49         [KEY_7] = "7",                          [KEY_8] = "8",
  50         [KEY_9] = "9",                          [KEY_0] = "0",
  51         [KEY_MINUS] = "Minus",                  [KEY_EQUAL] = "Equal",
  52         [KEY_BACKSPACE] = "Backspace",          [KEY_TAB] = "Tab",
  53         [KEY_Q] = "Q",                          [KEY_W] = "W",
  54         [KEY_E] = "E",                          [KEY_R] = "R",
  55         [KEY_T] = "T",                          [KEY_Y] = "Y",
  56         [KEY_U] = "U",                          [KEY_I] = "I",
  57         [KEY_O] = "O",                          [KEY_P] = "P",
  58         [KEY_LEFTBRACE] = "LeftBrace",          [KEY_RIGHTBRACE] = "RightBrace",
  59         [KEY_ENTER] = "Enter",                  [KEY_LEFTCTRL] = "LeftControl",
  60         [KEY_A] = "A",                          [KEY_S] = "S",
  61         [KEY_D] = "D",                          [KEY_F] = "F",
  62         [KEY_G] = "G",                          [KEY_H] = "H",
  63         [KEY_J] = "J",                          [KEY_K] = "K",
  64         [KEY_L] = "L",                          [KEY_SEMICOLON] = "Semicolon",
  65         [KEY_APOSTROPHE] = "Apostrophe",        [KEY_GRAVE] = "Grave",
  66         [KEY_LEFTSHIFT] = "LeftShift",          [KEY_BACKSLASH] = "BackSlash",
  67         [KEY_Z] = "Z",                          [KEY_X] = "X",
  68         [KEY_C] = "C",                          [KEY_V] = "V",
  69         [KEY_B] = "B",                          [KEY_N] = "N",
  70         [KEY_M] = "M",                          [KEY_COMMA] = "Comma",
  71         [KEY_DOT] = "Dot",                      [KEY_SLASH] = "Slash",
  72         [KEY_RIGHTSHIFT] = "RightShift",        [KEY_KPASTERISK] = "KPAsterisk",
  73         [KEY_LEFTALT] = "LeftAlt",              [KEY_SPACE] = "Space",
  74         [KEY_CAPSLOCK] = "CapsLock",            [KEY_F1] = "F1",
  75         [KEY_F2] = "F2",                        [KEY_F3] = "F3",
  76         [KEY_F4] = "F4",                        [KEY_F5] = "F5",
  77         [KEY_F6] = "F6",                        [KEY_F7] = "F7",
  78         [KEY_F8] = "F8",                        [KEY_F9] = "F9",
  79         [KEY_F10] = "F10",                      [KEY_NUMLOCK] = "NumLock",
  80         [KEY_SCROLLLOCK] = "ScrollLock",        [KEY_KP7] = "KP7",
  81         [KEY_KP8] = "KP8",                      [KEY_KP9] = "KP9",
  82         [KEY_KPMINUS] = "KPMinus",              [KEY_KP4] = "KP4",
  83         [KEY_KP5] = "KP5",                      [KEY_KP6] = "KP6",
  84         [KEY_KPPLUS] = "KPPlus",                [KEY_KP1] = "KP1",
  85         [KEY_KP2] = "KP2",                      [KEY_KP3] = "KP3",
  86         [KEY_KP0] = "KP0",                      [KEY_KPDOT] = "KPDot",
  87         [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
  88         [KEY_F11] = "F11",                      [KEY_F12] = "F12",
  89         [KEY_KPJPCOMMA] = "KPJpComma",          [KEY_KPENTER] = "KPEnter",
  90         [KEY_RIGHTCTRL] = "RightCtrl",          [KEY_KPSLASH] = "KPSlash",
  91         [KEY_SYSRQ] = "SysRq",                  [KEY_RIGHTALT] = "RightAlt",
  92         [KEY_LINEFEED] = "LineFeed",            [KEY_HOME] = "Home",
  93         [KEY_UP] = "Up",                        [KEY_PAGEUP] = "PageUp",
  94         [KEY_LEFT] = "Left",                    [KEY_RIGHT] = "Right",
  95         [KEY_END] = "End",                      [KEY_DOWN] = "Down",
  96         [KEY_PAGEDOWN] = "PageDown",            [KEY_INSERT] = "Insert",
  97         [KEY_DELETE] = "Delete",                [KEY_MACRO] = "Macro",
  98         [KEY_HELP] = "Help",                    [KEY_MENU] = "Menu",
  99         [KEY_COFFEE] = "Coffee",                [KEY_DIRECTION] = "Direction",
 100         [BTN_0] = "Btn0",                       [BTN_1] = "Btn1",
 101         [BTN_2] = "Btn2",                       [BTN_3] = "Btn3",
 102         [BTN_4] = "Btn4",                       [BTN_5] = "Btn5",
 103         [BTN_6] = "Btn6",                       [BTN_7] = "Btn7",
 104         [BTN_8] = "Btn8",                       [BTN_9] = "Btn9",
 105         [BTN_LEFT] = "LeftBtn",                 [BTN_RIGHT] = "RightBtn",
 106         [BTN_MIDDLE] = "MiddleBtn",             [BTN_SIDE] = "SideBtn",
 107         [BTN_EXTRA] = "ExtraBtn",               [BTN_FORWARD] = "ForwardBtn",
 108         [BTN_BACK] = "BackBtn",                 [BTN_TASK] = "TaskBtn",
 109         [BTN_TRIGGER] = "Trigger",              [BTN_THUMB] = "ThumbBtn",
 110         [BTN_THUMB2] = "ThumbBtn2",             [BTN_TOP] = "TopBtn",
 111         [BTN_TOP2] = "TopBtn2",                 [BTN_PINKIE] = "PinkieBtn",
 112         [BTN_BASE] = "BaseBtn",                 [BTN_BASE2] = "BaseBtn2",
 113         [BTN_BASE3] = "BaseBtn3",               [BTN_BASE4] = "BaseBtn4",
 114         [BTN_BASE5] = "BaseBtn5",               [BTN_BASE6] = "BaseBtn6",
 115         [BTN_DEAD] = "BtnDead",                 [BTN_A] = "BtnA",
 116         [BTN_B] = "BtnB",                       [BTN_C] = "BtnC",
 117         [BTN_X] = "BtnX",                       [BTN_Y] = "BtnY",
 118         [BTN_Z] = "BtnZ",                       [BTN_TL] = "BtnTL",
 119         [BTN_TR] = "BtnTR",                     [BTN_TL2] = "BtnTL2",
 120         [BTN_TR2] = "BtnTR2",                   [BTN_SELECT] = "BtnSelect",
 121         [BTN_START] = "BtnStart",               [BTN_MODE] = "BtnMode",
 122         [BTN_THUMBL] = "BtnThumbL",             [BTN_THUMBR] = "BtnThumbR",
 123         [BTN_TOUCH] = "Touch",                  [BTN_STYLUS] = "Stylus",
 124         [BTN_STYLUS2] = "Stylus2",              [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
 125         [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
 126         [BTN_GEAR_UP] = "Gear up",              [KEY_OK] = "Ok",
 127 };
 128
 129
 130 static void in_evdev_probe(void)
 131 {
 132         long keybits[KEY_CNT / sizeof(long) / 8];
 133         long absbits[(ABS_MAX+1) / sizeof(long) / 8];
 134         int i;
 135
 136         // the kernel might support and return less keys then we know about,
 137         // so make sure the buffers are clear.
 138         memset(keybits, 0, sizeof(keybits));
 139         memset(absbits, 0, sizeof(absbits));
 140
 141         for (i = 0;; i++)
 142         {
 143                 int support = 0, count = 0;
 144                 int u, ret, fd, kc_first, kc_last;
 145                 in_evdev_t *dev;
 146                 char name[64];
 147
 148                 snprintf(name, sizeof(name), "/dev/input/event%d", i);
 149                 fd = open(name, O_RDONLY|O_NONBLOCK);
 150                 if (fd == -1) {
 151                         if (errno == EACCES)
 152                                 continue;       /* maybe we can access next one */
 153                         break;
 154                 }
 155
 156                 /* check supported events */
 157                 ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
 158                 if (ret == -1) {
 159                         printf("in_evdev: ioctl failed on %s\n", name);
 160                         goto skip;
 161                 }
 162
 163                 if (!(support & (1 << EV_KEY)))
 164                         goto skip;
 165
 166                 ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
 167                 if (ret == -1) {
 168                         printf("in_evdev: ioctl failed on %s\n", name);
 169                         goto skip;
 170                 }
 171
 172                 /* check for interesting keys */
 173                 kc_first = KEY_MAX;
 174                 kc_last = 0;
 175                 for (u = 0; u < KEY_CNT; u++) {
 176                         if (KEYBITS_BIT(u)) {
 177                                 if (u < kc_first)
 178                                         kc_first = u;
 179                                 if (u > kc_last)
 180                                         kc_last = u;
 181                                 if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
 182                                         count++;
 183                         }
 184                 }
 185
 186                 if (count == 0)
 187                         goto skip;
 188
 189                 dev = calloc(1, sizeof(*dev));
 190                 if (dev == NULL)
 191                         goto skip;
 192
 193                 ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
 194                 if (ret == -1) {
 195                         printf("Warning: EVIOCGKEY not supported, will have to track state\n");
 196                         dev->kbits = calloc(KEY_CNT, sizeof(int));
 197                         if (dev->kbits == NULL) {
 198                                 free(dev);
 199                                 goto skip;
 200                         }
 201                 }
 202
 203                 /* check for abs too */
 204                 if (support & (1 << EV_ABS)) {
 205                         struct input_absinfo ainfo;
 206                         int dist;
 207                         ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
 208                         if (ret == -1)
 209                                 goto no_abs;
 210                         if (absbits[0] & (1 << ABS_X)) {
 211                                 ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
 212                                 if (ret == -1)
 213                                         goto no_abs;
 214                                 dist = ainfo.maximum - ainfo.minimum;
 215                                 dev->abs_lzone = dist / 4;
 216                                 dev->abs_min_x = ainfo.minimum;
 217                                 dev->abs_max_x = ainfo.maximum;
 218                         }
 219                         if (absbits[0] & (1 << ABS_Y)) {
 220                                 ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
 221                                 if (ret == -1)
 222                                         goto no_abs;
 223                                 dist = ainfo.maximum - ainfo.minimum;
 224                                 dev->abs_min_y = ainfo.minimum;
 225                                 dev->abs_max_y = ainfo.maximum;
 226                         }
 227                 }
 228
 229 no_abs:
 230                 dev->fd = fd;
 231                 dev->kc_first = kc_first;
 232                 dev->kc_last = kc_last;
 233                 strcpy(name, in_evdev_prefix);
 234                 ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
 235                 printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
 236                         name+6, count, support);
 237                 in_register(name, IN_DRVID_EVDEV, fd, dev, KEY_CNT, in_evdev_keys, 0);
 238                 continue;
 239
 240 skip:
 241                 close(fd);
 242         }
 243 }
 244
 245 static void in_evdev_free(void *drv_data)
 246 {
 247         in_evdev_t *dev = drv_data;
 248         if (dev == NULL)
 249                 return;
 250         close(dev->fd);
 251         free(dev);
 252 }
 253
 254 static int in_evdev_get_bind_count(void)
 255 {
 256         return KEY_CNT;
 257 }
 258
 259 static void or_binds(const int *binds, int key, int *result)
 260 {
 261         int t;
 262         for (t = 0; t < IN_BINDTYPE_COUNT; t++)
 263                 result[t] |= binds[IN_BIND_OFFS(key, t)];
 264 }
 265
 266 /* ORs result with binds of pressed buttons
 267  * XXX: should measure performance hit of this func, might need to optimize */
 268 int in_evdev_update(void *drv_data, const int *binds, int *result)
 269 {
 270         struct input_event ev[16];
 271         struct input_absinfo ainfo;
 272         int keybits_[KEY_CNT / sizeof(int)];
 273         int *keybits = keybits_;
 274         in_evdev_t *dev = drv_data;
 275         int rd, ret, u, lzone;
 276
 277         if (dev->kbits == NULL) {
 278                 ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
 279                 if (ret == -1) {
 280                         perror("in_evdev: ioctl failed");
 281                         return -1;
 282                 }
 283         }
 284         else {
 285                 keybits = dev->kbits;
 286                 while (1) {
 287                         rd = read(dev->fd, ev, sizeof(ev));
 288                         if (rd < (int)sizeof(ev[0])) {
 289                                 if (errno != EAGAIN)
 290                                         perror("in_evdev: read failed");
 291                                 break;
 292                         }
 293                         for (u = 0; u < rd / sizeof(ev[0]); u++) {
 294                                 if (ev[u].type != EV_KEY)
 295                                         continue;
 296                                 else if (ev[u].value == 1)
 297                                         KEYBITS_BIT_SET(ev[u].code);
 298                                 else if (ev[u].value == 0)
 299                                         KEYBITS_BIT_CLEAR(ev[u].code);
 300                         }
 301                 }
 302         }
 303
 304         for (u = dev->kc_first; u <= dev->kc_last; u++) {
 305                 if (KEYBITS_BIT(u))
 306                         or_binds(binds, u, result);
 307         }
 308
 309         /* map X and Y absolute to UDLR */
 310         lzone = dev->abs_lzone;
 311         if (lzone != 0) {
 312                 ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
 313                 if (ret != -1) {
 314                         if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
 315                         if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
 316                 }
 317         }
 318         if (lzone != 0) {
 319                 ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
 320                 if (ret != -1) {
 321                         if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
 322                         if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result);
 323                 }
 324         }
 325
 326         return 0;
 327 }
 328
 329 static int in_evdev_set_blocking(in_evdev_t *dev, int y)
 330 {
 331         long flags;
 332         int ret;
 333
 334         flags = (long)fcntl(dev->fd, F_GETFL);
 335         if ((int)flags == -1) {
 336                 perror("in_evdev: F_GETFL fcntl failed");
 337                 return -1;
 338         }
 339
 340         if (flags & O_NONBLOCK) {
 341                 /* flush the event queue */
 342                 struct input_event ev;
 343                 do {
 344                         ret = read(dev->fd, &ev, sizeof(ev));
 345                 }
 346                 while (ret == sizeof(ev));
 347         }
 348
 349         if (y)
 350                 flags &= ~O_NONBLOCK;
 351         else
 352                 flags |=  O_NONBLOCK;
 353         ret = fcntl(dev->fd, F_SETFL, flags);
 354         if (ret == -1) {
 355                 perror("in_evdev: F_SETFL fcntl failed");
 356                 return -1;
 357         }
 358
 359         return 0;
 360 }
 361
 362 static int in_evdev_set_config(void *drv_data, int what, int val)
 363 {
 364         in_evdev_t *dev = drv_data;
 365         int tmp;
 366
 367         switch (what) {
 368         case IN_CFG_BLOCKING:
 369                 return in_evdev_set_blocking(dev, val);
 370         case IN_CFG_ABS_DEAD_ZONE:
 371                 if (val < 1 || val > 99 || dev->abs_lzone == 0)
 372                         return -1;
 373                 /* XXX: based on X axis only, for now.. */
 374                 tmp = (dev->abs_max_x - dev->abs_min_x) / 2;
 375                 dev->abs_lzone = tmp - tmp * val / 100;
 376                 if (dev->abs_lzone < 1)
 377                         dev->abs_lzone = 1;
 378                 else if (dev->abs_lzone >= tmp)
 379                         dev->abs_lzone = tmp - 1;
 380                 break;
 381         default:
 382                 return -1;
 383         }
 384
 385         return 0;
 386 }
 387
 388 static int in_evdev_update_keycode(void *data, int *is_down)
 389 {
 390         int ret_kc = -1, ret_down = 0;
 391         in_evdev_t *dev = data;
 392         struct input_event ev;
 393         int rd;
 394
 395         while (1)
 396         {
 397                 rd = read(dev->fd, &ev, sizeof(ev));
 398                 if (rd < (int) sizeof(ev)) {
 399                         if (errno != EAGAIN) {
 400                                 perror("in_evdev: error reading");
 401                                 sleep(1);
 402                         }
 403                         goto out;
 404                 }
 405
 406                 if (ev.type == EV_KEY) {
 407                         if (ev.value < 0 || ev.value > 1)
 408                                 continue;
 409                         ret_kc = ev.code;
 410                         ret_down = ev.value;
 411                         goto out;
 412                 }
 413                 else if (ev.type == EV_ABS)
 414                 {
 415                         int lzone = dev->abs_lzone, down = 0, *last;
 416
 417                         // map absolute to up/down/left/right
 418                         if (lzone != 0 && ev.code == ABS_X) {
 419                                 if (ev.value < dev->abs_min_x + lzone)
 420                                         down = KEY_LEFT;
 421                                 else if (ev.value > dev->abs_max_x - lzone)
 422                                         down = KEY_RIGHT;
 423                                 last = &dev->abs_lastx;
 424                         }
 425                         else if (lzone != 0 && ev.code == ABS_Y) {
 426                                 if (ev.value < dev->abs_min_y + lzone)
 427                                         down = KEY_UP;
 428                                 else if (ev.value > dev->abs_max_y - lzone)
 429                                         down = KEY_DOWN;
 430                                 last = &dev->abs_lasty;
 431                         }
 432                         else
 433                                 continue;
 434
 435                         if (down == *last)
 436                                 continue;
 437
 438                         if (down == 0 || *last != 0) {
 439                                 /* key up or direction change, return up event for old key */
 440                                 ret_kc = *last;
 441                                 ret_down = 0;
 442                                 *last = 0;
 443                                 goto out;
 444                         }
 445                         ret_kc = *last = down;
 446                         ret_down = 1;
 447                         goto out;
 448                 }
 449         }
 450
 451 out:
 452         if (is_down != NULL)
 453                 *is_down = ret_down;
 454
 455         return ret_kc;
 456 }
 457
 458 static const struct {
 459         short key;
 460         short pbtn;
 461 } key_pbtn_map[] =
 462 {
 463         { KEY_UP,       PBTN_UP },
 464         { KEY_DOWN,     PBTN_DOWN },
 465         { KEY_LEFT,     PBTN_LEFT },
 466         { KEY_RIGHT,    PBTN_RIGHT },
 467         /* XXX: maybe better set this from it's plat code somehow */
 468         /* Pandora */
 469         { KEY_END,      PBTN_MOK },
 470         { KEY_PAGEDOWN, PBTN_MBACK },
 471         { KEY_HOME,     PBTN_MA2 },
 472         { KEY_PAGEUP,   PBTN_MA3 },
 473         { KEY_LEFTCTRL,   PBTN_MENU },
 474         { KEY_RIGHTSHIFT, PBTN_L },
 475         { KEY_RIGHTCTRL,  PBTN_R },
 476         /* Caanoo */
 477         { BTN_THUMB2,   PBTN_MOK },
 478         { BTN_THUMB,    PBTN_MBACK },
 479         { BTN_TRIGGER,  PBTN_MA2 },
 480         { BTN_TOP,      PBTN_MA3 },
 481         { BTN_BASE,     PBTN_MENU },
 482         { BTN_TOP2,     PBTN_L },
 483         { BTN_PINKIE,   PBTN_R },
 484         /* "normal" keyboards */
 485         { KEY_ENTER,    PBTN_MOK },
 486         { KEY_ESC,      PBTN_MBACK },
 487         { KEY_A,        PBTN_MA2 },
 488         { KEY_S,        PBTN_MA3 },
 489         { KEY_BACKSLASH,  PBTN_MENU },
 490         { KEY_LEFTBRACE,  PBTN_L },
 491         { KEY_RIGHTBRACE, PBTN_R },
 492 };
 493
 494 #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
 495
 496 static int in_evdev_menu_translate(void *drv_data, int keycode)
 497 {
 498         in_evdev_t *dev = drv_data;
 499         int i;
 500
 501         if (keycode < 0)
 502         {
 503                 /* menu -> kc */
 504                 keycode = -keycode;
 505                 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
 506                         if (key_pbtn_map[i].pbtn == keycode) {
 507                                 int k = key_pbtn_map[i].key;
 508                                 /* should really check EVIOCGBIT, but this is enough for now */
 509                                 if (dev->kc_first <= k && k <= dev->kc_last)
 510                                         return k;
 511                         }
 512         }
 513         else
 514         {
 515                 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
 516                         if (key_pbtn_map[i].key == keycode)
 517                                 return key_pbtn_map[i].pbtn;
 518         }
 519
 520         return 0;
 521 }
 522
 523 static const struct {
 524         short code;
 525         char btype;
 526         char bit;
 527 } in_evdev_def_binds[] =
 528 {
 529         /* MXYZ SACB RLDU */
 530         { KEY_UP,       IN_BINDTYPE_PLAYER12, 0 },
 531         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, 1 },
 532         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, 2 },
 533         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, 3 },
 534         { KEY_S,        IN_BINDTYPE_PLAYER12, 4 },      /* B */
 535         { KEY_D,        IN_BINDTYPE_PLAYER12, 5 },      /* C */
 536         { KEY_A,        IN_BINDTYPE_PLAYER12, 6 },      /* A */
 537         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, 7 },
 538         { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
 539         /* Pandora */
 540         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
 541         { KEY_END,      IN_BINDTYPE_PLAYER12, 5 },
 542         { KEY_HOME,     IN_BINDTYPE_PLAYER12, 6 },
 543         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, 7 },
 544         { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
 545         { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
 546         { KEY_LEFTCTRL,  IN_BINDTYPE_EMU, PEVB_MENU },
 547         /* Caanoo */
 548         { BTN_THUMB,    IN_BINDTYPE_PLAYER12, 4 },      /* B */
 549         { BTN_THUMB2,   IN_BINDTYPE_PLAYER12, 5 },      /* C */
 550         { BTN_TRIGGER,  IN_BINDTYPE_PLAYER12, 6 },      /* A */
 551         { BTN_BASE3,    IN_BINDTYPE_PLAYER12, 7 },
 552         { BTN_TOP2,     IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
 553         { BTN_PINKIE,   IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
 554         { BTN_BASE,     IN_BINDTYPE_EMU, PEVB_MENU },
 555 };
 556
 557 #define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
 558
 559 static void in_evdev_get_def_binds(int *binds)
 560 {
 561         int i;
 562
 563         for (i = 0; i < DEF_BIND_COUNT; i++)
 564                 binds[IN_BIND_OFFS(in_evdev_def_binds[i].code, in_evdev_def_binds[i].btype)] =
 565                         1 << in_evdev_def_binds[i].bit;
 566 }
 567
 568 /* remove binds of missing keys, count remaining ones */
 569 static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
 570 {
 571         int keybits[KEY_CNT / sizeof(int)];
 572         in_evdev_t *dev = drv_data;
 573         int i, t, ret, offs, count = 0;
 574
 575         ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
 576         if (ret == -1) {
 577                 perror("in_evdev: ioctl failed");
 578                 memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
 579         }
 580
 581         if (dev->abs_lzone != 0) {
 582                 KEYBITS_BIT_SET(KEY_LEFT);
 583                 KEYBITS_BIT_SET(KEY_RIGHT);
 584         }
 585         if (dev->abs_lzone != 0) {
 586                 KEYBITS_BIT_SET(KEY_UP);
 587                 KEYBITS_BIT_SET(KEY_DOWN);
 588         }
 589
 590         for (i = 0; i < KEY_CNT; i++) {
 591                 for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
 592                         offs = IN_BIND_OFFS(i, t);
 593                         if (!KEYBITS_BIT(i))
 594                                 binds[offs] = def_binds[offs] = 0;
 595                         if (binds[offs])
 596                                 count++;
 597                 }
 598         }
 599
 600         return count;
 601 }
 602
 603 void in_evdev_init(void *vdrv)
 604 {
 605         in_drv_t *drv = vdrv;
 606
 607         drv->prefix = in_evdev_prefix;
 608         drv->probe = in_evdev_probe;
 609         drv->free = in_evdev_free;
 610         drv->get_bind_count = in_evdev_get_bind_count;
 611         drv->get_def_binds = in_evdev_get_def_binds;
 612         drv->clean_binds = in_evdev_clean_binds;
 613         drv->set_config = in_evdev_set_config;
 614         drv->update_keycode = in_evdev_update_keycode;
 615         drv->menu_translate = in_evdev_menu_translate;
 616 }
 617