frontend/linux/in_evdev.c

   1 /*
   2  * (C) Gražvydas "notaz" Ignotas, 2008-2010
   3  *
   4  * This work is licensed under the terms of any of these licenses
   5  * (at your option):
   6  *  - GNU GPL, version 2 or later.
   7  *  - GNU LGPL, version 2.1 or later.
   8  * See the COPYING file in the top-level directory.
   9  */
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include <sys/types.h>
  15 #include <sys/stat.h>
  16 #include <fcntl.h>
  17 #include <sys/ioctl.h>
  18 #include <unistd.h>
  19 #include <linux/input.h>
  20 #include <errno.h>
  21
  22 #include "../common/input.h"
  23 #include "in_evdev.h"
  24
  25 typedef struct {
  26         int fd;
  27         int *kbits;
  28         int abs_min_x;
  29         int abs_max_x;
  30         int abs_min_y;
  31         int abs_max_y;
  32         int abs_lzone;
  33         int abs_lastx;
  34         int abs_lasty;
  35         int kc_first;
  36         int kc_last;
  37 } in_evdev_t;
  38
  39 #ifndef KEY_CNT
  40 #define KEY_CNT (KEY_MAX + 1)
  41 #endif
  42
  43 #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
  44         (1 << ((x) & (sizeof(keybits[0])*8-1))))
  45
  46 #define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \
  47         (1 << ((x) & (sizeof(keybits[0])*8-1))))
  48
  49 #define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
  50         ~(1 << ((x) & (sizeof(keybits[0])*8-1))))
  51
  52 static const char * const in_evdev_prefix = "evdev:";
  53 static const char * const in_evdev_keys[KEY_CNT] = {
  54         [0 ... KEY_MAX] = NULL,
  55         [KEY_RESERVED] = "Reserved",            [KEY_ESC] = "Esc",
  56         [KEY_1] = "1",                          [KEY_2] = "2",
  57         [KEY_3] = "3",                          [KEY_4] = "4",
  58         [KEY_5] = "5",                          [KEY_6] = "6",
  59         [KEY_7] = "7",                          [KEY_8] = "8",
  60         [KEY_9] = "9",                          [KEY_0] = "0",
  61         [KEY_MINUS] = "Minus",                  [KEY_EQUAL] = "Equal",
  62         [KEY_BACKSPACE] = "Backspace",          [KEY_TAB] = "Tab",
  63         [KEY_Q] = "Q",                          [KEY_W] = "W",
  64         [KEY_E] = "E",                          [KEY_R] = "R",
  65         [KEY_T] = "T",                          [KEY_Y] = "Y",
  66         [KEY_U] = "U",                          [KEY_I] = "I",
  67         [KEY_O] = "O",                          [KEY_P] = "P",
  68         [KEY_LEFTBRACE] = "LeftBrace",          [KEY_RIGHTBRACE] = "RightBrace",
  69         [KEY_ENTER] = "Enter",                  [KEY_LEFTCTRL] = "LeftControl",
  70         [KEY_A] = "A",                          [KEY_S] = "S",
  71         [KEY_D] = "D",                          [KEY_F] = "F",
  72         [KEY_G] = "G",                          [KEY_H] = "H",
  73         [KEY_J] = "J",                          [KEY_K] = "K",
  74         [KEY_L] = "L",                          [KEY_SEMICOLON] = "Semicolon",
  75         [KEY_APOSTROPHE] = "Apostrophe",        [KEY_GRAVE] = "Grave",
  76         [KEY_LEFTSHIFT] = "LeftShift",          [KEY_BACKSLASH] = "BackSlash",
  77         [KEY_Z] = "Z",                          [KEY_X] = "X",
  78         [KEY_C] = "C",                          [KEY_V] = "V",
  79         [KEY_B] = "B",                          [KEY_N] = "N",
  80         [KEY_M] = "M",                          [KEY_COMMA] = "Comma",
  81         [KEY_DOT] = "Dot",                      [KEY_SLASH] = "Slash",
  82         [KEY_RIGHTSHIFT] = "RightShift",        [KEY_KPASTERISK] = "KPAsterisk",
  83         [KEY_LEFTALT] = "LeftAlt",              [KEY_SPACE] = "Space",
  84         [KEY_CAPSLOCK] = "CapsLock",            [KEY_F1] = "F1",
  85         [KEY_F2] = "F2",                        [KEY_F3] = "F3",
  86         [KEY_F4] = "F4",                        [KEY_F5] = "F5",
  87         [KEY_F6] = "F6",                        [KEY_F7] = "F7",
  88         [KEY_F8] = "F8",                        [KEY_F9] = "F9",
  89         [KEY_F10] = "F10",                      [KEY_NUMLOCK] = "NumLock",
  90         [KEY_SCROLLLOCK] = "ScrollLock",        [KEY_KP7] = "KP7",
  91         [KEY_KP8] = "KP8",                      [KEY_KP9] = "KP9",
  92         [KEY_KPMINUS] = "KPMinus",              [KEY_KP4] = "KP4",
  93         [KEY_KP5] = "KP5",                      [KEY_KP6] = "KP6",
  94         [KEY_KPPLUS] = "KPPlus",                [KEY_KP1] = "KP1",
  95         [KEY_KP2] = "KP2",                      [KEY_KP3] = "KP3",
  96         [KEY_KP0] = "KP0",                      [KEY_KPDOT] = "KPDot",
  97         [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
  98         [KEY_F11] = "F11",                      [KEY_F12] = "F12",
  99         [KEY_KPJPCOMMA] = "KPJpComma",          [KEY_KPENTER] = "KPEnter",
 100         [KEY_RIGHTCTRL] = "RightCtrl",          [KEY_KPSLASH] = "KPSlash",
 101         [KEY_SYSRQ] = "SysRq",                  [KEY_RIGHTALT] = "RightAlt",
 102         [KEY_LINEFEED] = "LineFeed",            [KEY_HOME] = "Home",
 103         [KEY_UP] = "Up",                        [KEY_PAGEUP] = "PageUp",
 104         [KEY_LEFT] = "Left",                    [KEY_RIGHT] = "Right",
 105         [KEY_END] = "End",                      [KEY_DOWN] = "Down",
 106         [KEY_PAGEDOWN] = "PageDown",            [KEY_INSERT] = "Insert",
 107         [KEY_DELETE] = "Delete",                [KEY_MACRO] = "Macro",
 108         [KEY_HELP] = "Help",                    [KEY_MENU] = "Menu",
 109         [KEY_COFFEE] = "Coffee",                [KEY_DIRECTION] = "Direction",
 110         [BTN_0] = "Btn0",                       [BTN_1] = "Btn1",
 111         [BTN_2] = "Btn2",                       [BTN_3] = "Btn3",
 112         [BTN_4] = "Btn4",                       [BTN_5] = "Btn5",
 113         [BTN_6] = "Btn6",                       [BTN_7] = "Btn7",
 114         [BTN_8] = "Btn8",                       [BTN_9] = "Btn9",
 115         [BTN_LEFT] = "LeftBtn",                 [BTN_RIGHT] = "RightBtn",
 116         [BTN_MIDDLE] = "MiddleBtn",             [BTN_SIDE] = "SideBtn",
 117         [BTN_EXTRA] = "ExtraBtn",               [BTN_FORWARD] = "ForwardBtn",
 118         [BTN_BACK] = "BackBtn",                 [BTN_TASK] = "TaskBtn",
 119         [BTN_TRIGGER] = "Trigger",              [BTN_THUMB] = "ThumbBtn",
 120         [BTN_THUMB2] = "ThumbBtn2",             [BTN_TOP] = "TopBtn",
 121         [BTN_TOP2] = "TopBtn2",                 [BTN_PINKIE] = "PinkieBtn",
 122         [BTN_BASE] = "BaseBtn",                 [BTN_BASE2] = "BaseBtn2",
 123         [BTN_BASE3] = "BaseBtn3",               [BTN_BASE4] = "BaseBtn4",
 124         [BTN_BASE5] = "BaseBtn5",               [BTN_BASE6] = "BaseBtn6",
 125         [BTN_DEAD] = "BtnDead",                 [BTN_A] = "BtnA",
 126         [BTN_B] = "BtnB",                       [BTN_C] = "BtnC",
 127         [BTN_X] = "BtnX",                       [BTN_Y] = "BtnY",
 128         [BTN_Z] = "BtnZ",                       [BTN_TL] = "BtnTL",
 129         [BTN_TR] = "BtnTR",                     [BTN_TL2] = "BtnTL2",
 130         [BTN_TR2] = "BtnTR2",                   [BTN_SELECT] = "BtnSelect",
 131         [BTN_START] = "BtnStart",               [BTN_MODE] = "BtnMode",
 132         [BTN_THUMBL] = "BtnThumbL",             [BTN_THUMBR] = "BtnThumbR",
 133         [BTN_TOUCH] = "Touch",                  [BTN_STYLUS] = "Stylus",
 134         [BTN_STYLUS2] = "Stylus2",              [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
 135         [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
 136         [BTN_GEAR_UP] = "Gear up",              [KEY_OK] = "Ok",
 137 };
 138
 139
 140 static void in_evdev_probe(void)
 141 {
 142         long keybits[KEY_CNT / sizeof(long) / 8];
 143         long absbits[(ABS_MAX+1) / sizeof(long) / 8];
 144         int i;
 145
 146         // the kernel might support and return less keys then we know about,
 147         // so make sure the buffers are clear.
 148         memset(keybits, 0, sizeof(keybits));
 149         memset(absbits, 0, sizeof(absbits));
 150
 151         for (i = 0;; i++)
 152         {
 153                 int support = 0, count = 0;
 154                 int u, ret, fd, kc_first, kc_last;
 155                 in_evdev_t *dev;
 156                 char name[64];
 157
 158                 snprintf(name, sizeof(name), "/dev/input/event%d", i);
 159                 fd = open(name, O_RDONLY|O_NONBLOCK);
 160                 if (fd == -1) {
 161                         if (errno == EACCES)
 162                                 continue;       /* maybe we can access next one */
 163                         break;
 164                 }
 165
 166                 /* check supported events */
 167                 ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
 168                 if (ret == -1) {
 169                         printf("in_evdev: ioctl failed on %s\n", name);
 170                         goto skip;
 171                 }
 172
 173                 if (!(support & (1 << EV_KEY)))
 174                         goto skip;
 175
 176                 ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
 177                 if (ret == -1) {
 178                         printf("in_evdev: ioctl failed on %s\n", name);
 179                         goto skip;
 180                 }
 181
 182                 /* check for interesting keys */
 183                 kc_first = KEY_MAX;
 184                 kc_last = 0;
 185                 for (u = 0; u < KEY_CNT; u++) {
 186                         if (KEYBITS_BIT(u)) {
 187                                 if (u < kc_first)
 188                                         kc_first = u;
 189                                 if (u > kc_last)
 190                                         kc_last = u;
 191                                 if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
 192                                         count++;
 193                         }
 194                 }
 195
 196                 if (count == 0)
 197                         goto skip;
 198
 199                 dev = calloc(1, sizeof(*dev));
 200                 if (dev == NULL)
 201                         goto skip;
 202
 203                 ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
 204                 if (ret == -1) {
 205                         printf("Warning: EVIOCGKEY not supported, will have to track state\n");
 206                         dev->kbits = calloc(KEY_CNT, sizeof(int));
 207                         if (dev->kbits == NULL) {
 208                                 free(dev);
 209                                 goto skip;
 210                         }
 211                 }
 212
 213                 /* check for abs too */
 214                 if (support & (1 << EV_ABS)) {
 215                         struct input_absinfo ainfo;
 216                         int dist;
 217                         ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
 218                         if (ret == -1)
 219                                 goto no_abs;
 220                         if (absbits[0] & (1 << ABS_X)) {
 221                                 ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
 222                                 if (ret == -1)
 223                                         goto no_abs;
 224                                 dist = ainfo.maximum - ainfo.minimum;
 225                                 dev->abs_lzone = dist / 4;
 226                                 dev->abs_min_x = ainfo.minimum;
 227                                 dev->abs_max_x = ainfo.maximum;
 228                         }
 229                         if (absbits[0] & (1 << ABS_Y)) {
 230                                 ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
 231                                 if (ret == -1)
 232                                         goto no_abs;
 233                                 dist = ainfo.maximum - ainfo.minimum;
 234                                 dev->abs_min_y = ainfo.minimum;
 235                                 dev->abs_max_y = ainfo.maximum;
 236                         }
 237                 }
 238
 239 no_abs:
 240                 dev->fd = fd;
 241                 dev->kc_first = kc_first;
 242                 dev->kc_last = kc_last;
 243                 strcpy(name, in_evdev_prefix);
 244                 ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
 245                 printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
 246                         name+6, count, support);
 247                 in_register(name, IN_DRVID_EVDEV, fd, dev, KEY_CNT, in_evdev_keys, 0);
 248                 continue;
 249
 250 skip:
 251                 close(fd);
 252         }
 253 }
 254
 255 static void in_evdev_free(void *drv_data)
 256 {
 257         in_evdev_t *dev = drv_data;
 258         if (dev == NULL)
 259                 return;
 260         close(dev->fd);
 261         free(dev);
 262 }
 263
 264 static int in_evdev_get_bind_count(void)
 265 {
 266         return KEY_CNT;
 267 }
 268
 269 static void or_binds(const int *binds, int key, int *result)
 270 {
 271         int t;
 272         for (t = 0; t < IN_BINDTYPE_COUNT; t++)
 273                 result[t] |= binds[IN_BIND_OFFS(key, t)];
 274 }
 275
 276 /* ORs result with binds of pressed buttons
 277  * XXX: should measure performance hit of this func, might need to optimize */
 278 int in_evdev_update(void *drv_data, const int *binds, int *result)
 279 {
 280         struct input_event ev[16];
 281         struct input_absinfo ainfo;
 282         int keybits_[KEY_CNT / sizeof(int)];
 283         int *keybits = keybits_;
 284         in_evdev_t *dev = drv_data;
 285         int rd, ret, u, lzone;
 286
 287         if (dev->kbits == NULL) {
 288                 ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
 289                 if (ret == -1) {
 290                         perror("in_evdev: ioctl failed");
 291                         return -1;
 292                 }
 293         }
 294         else {
 295                 keybits = dev->kbits;
 296                 while (1) {
 297                         rd = read(dev->fd, ev, sizeof(ev));
 298                         if (rd < (int)sizeof(ev[0])) {
 299                                 if (errno != EAGAIN)
 300                                         perror("in_evdev: read failed");
 301                                 break;
 302                         }
 303                         for (u = 0; u < rd / sizeof(ev[0]); u++) {
 304                                 if (ev[u].type != EV_KEY)
 305                                         continue;
 306                                 else if (ev[u].value == 1)
 307                                         KEYBITS_BIT_SET(ev[u].code);
 308                                 else if (ev[u].value == 0)
 309                                         KEYBITS_BIT_CLEAR(ev[u].code);
 310                         }
 311                 }
 312         }
 313
 314         for (u = dev->kc_first; u <= dev->kc_last; u++) {
 315                 if (KEYBITS_BIT(u))
 316                         or_binds(binds, u, result);
 317         }
 318
 319         /* map X and Y absolute to UDLR */
 320         lzone = dev->abs_lzone;
 321         if (lzone != 0) {
 322                 ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
 323                 if (ret != -1) {
 324                         if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
 325                         if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
 326                 }
 327         }
 328         if (lzone != 0) {
 329                 ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
 330                 if (ret != -1) {
 331                         if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
 332                         if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result);
 333                 }
 334         }
 335
 336         return 0;
 337 }
 338
 339 static int in_evdev_set_blocking(in_evdev_t *dev, int y)
 340 {
 341         long flags;
 342         int ret;
 343
 344         flags = (long)fcntl(dev->fd, F_GETFL);
 345         if ((int)flags == -1) {
 346                 perror("in_evdev: F_GETFL fcntl failed");
 347                 return -1;
 348         }
 349
 350         if (flags & O_NONBLOCK) {
 351                 /* flush the event queue */
 352                 struct input_event ev;
 353                 do {
 354                         ret = read(dev->fd, &ev, sizeof(ev));
 355                 }
 356                 while (ret == sizeof(ev));
 357         }
 358
 359         if (y)
 360                 flags &= ~O_NONBLOCK;
 361         else
 362                 flags |=  O_NONBLOCK;
 363         ret = fcntl(dev->fd, F_SETFL, flags);
 364         if (ret == -1) {
 365                 perror("in_evdev: F_SETFL fcntl failed");
 366                 return -1;
 367         }
 368
 369         return 0;
 370 }
 371
 372 static int in_evdev_set_config(void *drv_data, int what, int val)
 373 {
 374         in_evdev_t *dev = drv_data;
 375         int tmp;
 376
 377         switch (what) {
 378         case IN_CFG_BLOCKING:
 379                 return in_evdev_set_blocking(dev, val);
 380         case IN_CFG_ABS_DEAD_ZONE:
 381                 if (val < 1 || val > 99 || dev->abs_lzone == 0)
 382                         return -1;
 383                 /* XXX: based on X axis only, for now.. */
 384                 tmp = (dev->abs_max_x - dev->abs_min_x) / 2;
 385                 dev->abs_lzone = tmp - tmp * val / 100;
 386                 if (dev->abs_lzone < 1)
 387                         dev->abs_lzone = 1;
 388                 else if (dev->abs_lzone >= tmp)
 389                         dev->abs_lzone = tmp - 1;
 390                 break;
 391         default:
 392                 return -1;
 393         }
 394
 395         return 0;
 396 }
 397
 398 static int in_evdev_update_keycode(void *data, int *is_down)
 399 {
 400         int ret_kc = -1, ret_down = 0;
 401         in_evdev_t *dev = data;
 402         struct input_event ev;
 403         int rd;
 404
 405         /* do single event, the caller sometimes wants
 406          * to do select() in blocking mode */
 407         rd = read(dev->fd, &ev, sizeof(ev));
 408         if (rd < (int) sizeof(ev)) {
 409                 if (errno != EAGAIN) {
 410                         perror("in_evdev: error reading");
 411                         sleep(1);
 412                 }
 413                 goto out;
 414         }
 415
 416         if (ev.type == EV_KEY) {
 417                 if (ev.value < 0 || ev.value > 1)
 418                         goto out;
 419                 ret_kc = ev.code;
 420                 ret_down = ev.value;
 421                 goto out;
 422         }
 423         else if (ev.type == EV_ABS)
 424         {
 425                 int lzone = dev->abs_lzone, down = 0, *last;
 426
 427                 // map absolute to up/down/left/right
 428                 if (lzone != 0 && ev.code == ABS_X) {
 429                         if (ev.value < dev->abs_min_x + lzone)
 430                                 down = KEY_LEFT;
 431                         else if (ev.value > dev->abs_max_x - lzone)
 432                                 down = KEY_RIGHT;
 433                         last = &dev->abs_lastx;
 434                 }
 435                 else if (lzone != 0 && ev.code == ABS_Y) {
 436                         if (ev.value < dev->abs_min_y + lzone)
 437                                 down = KEY_UP;
 438                         else if (ev.value > dev->abs_max_y - lzone)
 439                                 down = KEY_DOWN;
 440                         last = &dev->abs_lasty;
 441                 }
 442                 else
 443                         goto out;
 444
 445                 if (down == *last)
 446                         goto out;
 447
 448                 if (down == 0 || *last != 0) {
 449                         /* key up or direction change, return up event for old key */
 450                         ret_kc = *last;
 451                         ret_down = 0;
 452                         *last = 0;
 453                         goto out;
 454                 }
 455                 ret_kc = *last = down;
 456                 ret_down = 1;
 457                 goto out;
 458         }
 459
 460 out:
 461         if (is_down != NULL)
 462                 *is_down = ret_down;
 463
 464         return ret_kc;
 465 }
 466
 467 static const struct {
 468         short key;
 469         short pbtn;
 470 } key_pbtn_map[] =
 471 {
 472         { KEY_UP,       PBTN_UP },
 473         { KEY_DOWN,     PBTN_DOWN },
 474         { KEY_LEFT,     PBTN_LEFT },
 475         { KEY_RIGHT,    PBTN_RIGHT },
 476         /* XXX: maybe better set this from it's plat code somehow */
 477         /* Pandora */
 478         { KEY_END,      PBTN_MOK },
 479         { KEY_PAGEDOWN, PBTN_MBACK },
 480         { KEY_HOME,     PBTN_MA2 },
 481         { KEY_PAGEUP,   PBTN_MA3 },
 482         { KEY_LEFTCTRL,   PBTN_MENU },
 483         { KEY_RIGHTSHIFT, PBTN_L },
 484         { KEY_RIGHTCTRL,  PBTN_R },
 485         /* Caanoo */
 486         { BTN_THUMB2,   PBTN_MOK },
 487         { BTN_THUMB,    PBTN_MBACK },
 488         { BTN_TRIGGER,  PBTN_MA2 },
 489         { BTN_TOP,      PBTN_MA3 },
 490         { BTN_BASE,     PBTN_MENU },
 491         { BTN_TOP2,     PBTN_L },
 492         { BTN_PINKIE,   PBTN_R },
 493         /* "normal" keyboards */
 494         { KEY_ENTER,    PBTN_MOK },
 495         { KEY_ESC,      PBTN_MBACK },
 496         { KEY_A,        PBTN_MA2 },
 497         { KEY_S,        PBTN_MA3 },
 498         { KEY_BACKSLASH,  PBTN_MENU },
 499         { KEY_LEFTBRACE,  PBTN_L },
 500         { KEY_RIGHTBRACE, PBTN_R },
 501 };
 502
 503 #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
 504
 505 static int in_evdev_menu_translate(void *drv_data, int keycode)
 506 {
 507         in_evdev_t *dev = drv_data;
 508         int i;
 509
 510         if (keycode < 0)
 511         {
 512                 /* menu -> kc */
 513                 keycode = -keycode;
 514                 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
 515                         if (key_pbtn_map[i].pbtn == keycode) {
 516                                 int k = key_pbtn_map[i].key;
 517                                 /* should really check EVIOCGBIT, but this is enough for now */
 518                                 if (dev->kc_first <= k && k <= dev->kc_last)
 519                                         return k;
 520                         }
 521         }
 522         else
 523         {
 524                 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
 525                         if (key_pbtn_map[i].key == keycode)
 526                                 return key_pbtn_map[i].pbtn;
 527         }
 528
 529         return 0;
 530 }
 531
 532 /* FIXME: move to plat */
 533 #if 0
 534 static const struct {
 535         short code;
 536         char btype;
 537         char bit;
 538 } in_evdev_def_binds[] =
 539 {
 540         /* MXYZ SACB RLDU */
 541         { KEY_UP,       IN_BINDTYPE_PLAYER12, 0 },
 542         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, 1 },
 543         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, 2 },
 544         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, 3 },
 545         { KEY_S,        IN_BINDTYPE_PLAYER12, 4 },      /* B */
 546         { KEY_D,        IN_BINDTYPE_PLAYER12, 5 },      /* C */
 547         { KEY_A,        IN_BINDTYPE_PLAYER12, 6 },      /* A */
 548         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, 7 },
 549         { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
 550         /* Pandora */
 551         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
 552         { KEY_END,      IN_BINDTYPE_PLAYER12, 5 },
 553         { KEY_HOME,     IN_BINDTYPE_PLAYER12, 6 },
 554         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, 7 },
 555         { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
 556         { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
 557         { KEY_LEFTCTRL,  IN_BINDTYPE_EMU, PEVB_MENU },
 558         /* Caanoo */
 559         { BTN_THUMB,    IN_BINDTYPE_PLAYER12, 4 },      /* B */
 560         { BTN_THUMB2,   IN_BINDTYPE_PLAYER12, 5 },      /* C */
 561         { BTN_TRIGGER,  IN_BINDTYPE_PLAYER12, 6 },      /* A */
 562         { BTN_BASE3,    IN_BINDTYPE_PLAYER12, 7 },
 563         { BTN_TOP2,     IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
 564         { BTN_PINKIE,   IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
 565         { BTN_BASE,     IN_BINDTYPE_EMU, PEVB_MENU },
 566 };
 567 #endif
 568
 569 static void in_evdev_get_def_binds(int *binds)
 570 {
 571         int i;
 572
 573         for (i = 0; ; i++) {
 574                 if (in_evdev_defbinds[i].bit == 0 && in_evdev_defbinds[i].code == 0)
 575                         break;
 576                 binds[IN_BIND_OFFS(in_evdev_defbinds[i].code, in_evdev_defbinds[i].btype)] =
 577                         1 << in_evdev_defbinds[i].bit;
 578         }
 579 }
 580
 581 /* remove binds of missing keys, count remaining ones */
 582 static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
 583 {
 584         int keybits[KEY_CNT / sizeof(int)];
 585         in_evdev_t *dev = drv_data;
 586         int i, t, ret, offs, count = 0;
 587
 588         ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
 589         if (ret == -1) {
 590                 perror("in_evdev: ioctl failed");
 591                 memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
 592         }
 593
 594         if (dev->abs_lzone != 0) {
 595                 KEYBITS_BIT_SET(KEY_LEFT);
 596                 KEYBITS_BIT_SET(KEY_RIGHT);
 597         }
 598         if (dev->abs_lzone != 0) {
 599                 KEYBITS_BIT_SET(KEY_UP);
 600                 KEYBITS_BIT_SET(KEY_DOWN);
 601         }
 602
 603         for (i = 0; i < KEY_CNT; i++) {
 604                 for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
 605                         offs = IN_BIND_OFFS(i, t);
 606                         if (!KEYBITS_BIT(i))
 607                                 binds[offs] = def_binds[offs] = 0;
 608                         if (binds[offs])
 609                                 count++;
 610                 }
 611         }
 612
 613         return count;
 614 }
 615
 616 void in_evdev_init(void *vdrv)
 617 {
 618         in_drv_t *drv = vdrv;
 619
 620         drv->prefix = in_evdev_prefix;
 621         drv->probe = in_evdev_probe;
 622         drv->free = in_evdev_free;
 623         drv->get_bind_count = in_evdev_get_bind_count;
 624         drv->get_def_binds = in_evdev_get_def_binds;
 625         drv->clean_binds = in_evdev_clean_binds;
 626         drv->set_config = in_evdev_set_config;
 627         drv->update_keycode = in_evdev_update_keycode;
 628         drv->menu_translate = in_evdev_menu_translate;
 629 }
 630