9 #include <linux/input.h>
12 #include "../common/input.h"
26 #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
27 (1 << ((x) & (sizeof(keybits[0])*8-1))))
29 #define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \
30 (1 << ((x) & (sizeof(keybits[0])*8-1))))
32 static const char * const in_evdev_prefix = "evdev:";
33 static const char * const in_evdev_keys[KEY_MAX + 1] = {
34 [0 ... KEY_MAX] = NULL,
35 [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
36 [KEY_1] = "1", [KEY_2] = "2",
37 [KEY_3] = "3", [KEY_4] = "4",
38 [KEY_5] = "5", [KEY_6] = "6",
39 [KEY_7] = "7", [KEY_8] = "8",
40 [KEY_9] = "9", [KEY_0] = "0",
41 [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
42 [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
43 [KEY_Q] = "Q", [KEY_W] = "W",
44 [KEY_E] = "E", [KEY_R] = "R",
45 [KEY_T] = "T", [KEY_Y] = "Y",
46 [KEY_U] = "U", [KEY_I] = "I",
47 [KEY_O] = "O", [KEY_P] = "P",
48 [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
49 [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
50 [KEY_A] = "A", [KEY_S] = "S",
51 [KEY_D] = "D", [KEY_F] = "F",
52 [KEY_G] = "G", [KEY_H] = "H",
53 [KEY_J] = "J", [KEY_K] = "K",
54 [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
55 [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
56 [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
57 [KEY_Z] = "Z", [KEY_X] = "X",
58 [KEY_C] = "C", [KEY_V] = "V",
59 [KEY_B] = "B", [KEY_N] = "N",
60 [KEY_M] = "M", [KEY_COMMA] = "Comma",
61 [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
62 [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
63 [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
64 [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
65 [KEY_F2] = "F2", [KEY_F3] = "F3",
66 [KEY_F4] = "F4", [KEY_F5] = "F5",
67 [KEY_F6] = "F6", [KEY_F7] = "F7",
68 [KEY_F8] = "F8", [KEY_F9] = "F9",
69 [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
70 [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
71 [KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
72 [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
73 [KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
74 [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
75 [KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
76 [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
77 [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
78 [KEY_F11] = "F11", [KEY_F12] = "F12",
79 [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
80 [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
81 [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
82 [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
83 [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
84 [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
85 [KEY_END] = "End", [KEY_DOWN] = "Down",
86 [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
87 [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
88 [KEY_HELP] = "Help", [KEY_MENU] = "Menu",
89 [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
90 [BTN_0] = "Btn0", [BTN_1] = "Btn1",
91 [BTN_2] = "Btn2", [BTN_3] = "Btn3",
92 [BTN_4] = "Btn4", [BTN_5] = "Btn5",
93 [BTN_6] = "Btn6", [BTN_7] = "Btn7",
94 [BTN_8] = "Btn8", [BTN_9] = "Btn9",
95 [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
96 [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
97 [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
98 [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
99 [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
100 [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
101 [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
102 [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
103 [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
104 [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
105 [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
106 [BTN_B] = "BtnB", [BTN_C] = "BtnC",
107 [BTN_X] = "BtnX", [BTN_Y] = "BtnY",
108 [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
109 [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
110 [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
111 [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
112 [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
113 [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
114 [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
115 [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
116 [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
120 static void in_evdev_probe(void)
126 int keybits[(KEY_MAX+1)/sizeof(int)], absbits[(ABS_MAX+1)/sizeof(int)];
127 int support = 0, count = 0;
132 snprintf(name, sizeof(name), "/dev/input/event%d", i);
133 fd = open(name, O_RDONLY|O_NONBLOCK);
137 /* check supported events */
138 ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
140 printf("in_evdev: ioctl failed on %s\n", name);
144 if (!(support & (1 << EV_KEY)))
147 ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
149 printf("in_evdev: ioctl failed on %s\n", name);
153 /* check for interesting keys */
154 for (u = 0; u < KEY_MAX + 1; u++) {
155 if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
162 dev = calloc(1, sizeof(*dev));
166 /* check for abs too */
167 if (support & (1 << EV_ABS)) {
168 struct input_absinfo ainfo;
170 ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
173 if (absbits[0] & (1 << ABS_X)) {
174 ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
177 dist = ainfo.maximum - ainfo.minimum;
178 dev->abs_lzone = ainfo.minimum + dist / 4;
179 dev->abs_rzone = ainfo.maximum - dist / 4;
181 if (absbits[0] & (1 << ABS_Y)) {
182 ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
185 dist = ainfo.maximum - ainfo.minimum;
186 dev->abs_tzone = ainfo.minimum + dist / 4;
187 dev->abs_bzone = ainfo.maximum - dist / 4;
193 strcpy(name, in_evdev_prefix);
194 ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
195 printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
196 name+6, count, support);
197 in_register(name, IN_DRVID_EVDEV, fd, dev, 0);
205 static void in_evdev_free(void *drv_data)
207 in_evdev_t *dev = drv_data;
214 static int in_evdev_get_bind_count(void)
219 /* returns bitfield of binds of pressed buttons */
220 int in_evdev_update(void *drv_data, int *binds)
222 struct input_event ev[16];
223 struct input_absinfo ainfo;
224 int keybits[(KEY_MAX+1)/sizeof(int)];
225 in_evdev_t *dev = drv_data;
226 int result = 0, changed = 0;
230 rd = read(dev->fd, ev, sizeof(ev));
231 if (rd < (int)sizeof(ev[0])) {
233 perror("in_evdev: read failed");
241 return dev->prev_update;
243 ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits)), keybits);
245 perror("in_evdev: ioctl failed");
249 for (u = 0; u < KEY_MAX + 1; u++) {
250 if (KEYBITS_BIT(u)) {
255 /* map X and Y absolute to UDLR */
256 if (dev->abs_lzone != 0) {
257 ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
259 if (ainfo.value < dev->abs_lzone) result |= binds[KEY_LEFT];
260 if (ainfo.value > dev->abs_rzone) result |= binds[KEY_RIGHT];
263 if (dev->abs_tzone != 0) {
264 ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
266 if (ainfo.value < dev->abs_tzone) result |= binds[KEY_UP];
267 if (ainfo.value > dev->abs_bzone) result |= binds[KEY_DOWN];
271 dev->prev_update = result;
275 static void in_evdev_set_blocking(void *drv_data, int y)
277 in_evdev_t *dev = drv_data;
281 dev->prev_update = 0;
283 flags = (long)fcntl(dev->fd, F_GETFL);
284 if ((int)flags == -1) {
285 perror("in_evdev: F_GETFL fcntl failed");
289 flags &= ~O_NONBLOCK;
292 ret = fcntl(dev->fd, F_SETFL, flags);
294 perror("in_evdev: F_SETFL fcntl failed");
297 static int in_evdev_update_keycode(void *data, int *is_down)
299 in_evdev_t *dev = data;
300 struct input_event ev;
306 rd = read(dev->fd, &ev, sizeof(ev));
307 if (rd < (int) sizeof(ev)) {
308 if (errno != EAGAIN) {
309 perror("in_evdev: error reading");
315 if (ev.type == EV_KEY) {
316 if (ev.value < 0 || ev.value > 1)
322 else if (ev.type == EV_ABS)
325 if (dev->abs_lzone != 0 && ev.code == ABS_X) {
326 if (ev.value < dev->abs_lzone) {
328 dev->abs_lastx = KEY_LEFT;
330 else if (ev.value > dev->abs_rzone) {
332 dev->abs_lastx = KEY_RIGHT;
336 return dev->abs_lastx;
338 if (dev->abs_tzone != 0 && ev.code == ABS_Y) {
339 if (ev.value < dev->abs_tzone) {
341 dev->abs_lasty = KEY_UP;
343 else if (ev.value > dev->abs_bzone) {
345 dev->abs_lasty = KEY_DOWN;
349 return dev->abs_lasty;
356 static const struct {
362 { KEY_DOWN, PBTN_DOWN },
363 { KEY_LEFT, PBTN_LEFT },
364 { KEY_RIGHT, PBTN_RIGHT },
365 { KEY_ENTER, PBTN_MOK },
367 { BTN_TRIGGER, PBTN_MOK },
368 { KEY_ESC, PBTN_MBACK },
369 { BTN_B, PBTN_MBACK },
370 { BTN_THUMB, PBTN_MBACK },
373 { KEY_BACKSLASH, PBTN_MENU },
374 { KEY_MENU, PBTN_MENU },
375 { KEY_LEFTBRACE, PBTN_L },
376 { KEY_RIGHTBRACE, PBTN_R },
379 #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
381 static int in_evdev_menu_translate(int keycode)
388 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
389 if (key_pbtn_map[i].pbtn == keycode)
390 return key_pbtn_map[i].key;
394 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
395 if (key_pbtn_map[i].key == keycode)
396 return key_pbtn_map[i].pbtn;
402 static int in_evdev_get_key_code(const char *key_name)
406 for (i = 0; i < KEY_MAX + 1; i++) {
407 const char *k = in_evdev_keys[i];
408 if (k != NULL && strcasecmp(k, key_name) == 0)
415 static const char *in_evdev_get_key_name(int keycode)
417 const char *name = NULL;
418 if (keycode >= 0 && keycode <= KEY_MAX)
419 name = in_evdev_keys[keycode];
426 static const struct {
429 } in_evdev_def_binds[] =
436 { KEY_S, 4 }, /* B */
438 { KEY_D, 5 }, /* C */
440 { KEY_A, 6 }, /* A */
444 { BTN_TL, 27 }, /* save state */
445 { BTN_TR, 28 }, /* load state */
448 #define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
450 static void in_evdev_get_def_binds(int *binds)
454 for (i = 0; i < DEF_BIND_COUNT; i++)
455 binds[in_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
458 /* remove binds of missing keys, count remaining ones */
459 static int in_evdev_clean_binds(void *drv_data, int *binds)
461 int keybits[(KEY_MAX+1)/sizeof(int)];
462 in_evdev_t *dev = drv_data;
463 int i, ret, count = 0;
465 ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
467 perror("in_evdev: ioctl failed");
468 memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
471 if (dev->abs_lzone != 0) {
472 KEYBITS_BIT_SET(KEY_LEFT);
473 KEYBITS_BIT_SET(KEY_RIGHT);
475 if (dev->abs_tzone != 0) {
476 KEYBITS_BIT_SET(KEY_UP);
477 KEYBITS_BIT_SET(KEY_DOWN);
480 for (i = 0; i < KEY_MAX + 1; i++) {
482 binds[i] = binds[i + KEY_MAX + 1] = 0;
490 void in_evdev_init(void *vdrv)
492 in_drv_t *drv = vdrv;
494 drv->prefix = in_evdev_prefix;
495 drv->probe = in_evdev_probe;
496 drv->free = in_evdev_free;
497 drv->get_bind_count = in_evdev_get_bind_count;
498 drv->get_def_binds = in_evdev_get_def_binds;
499 drv->clean_binds = in_evdev_clean_binds;
500 drv->set_blocking = in_evdev_set_blocking;
501 drv->update_keycode = in_evdev_update_keycode;
502 drv->menu_translate = in_evdev_menu_translate;
503 drv->get_key_code = in_evdev_get_key_code;
504 drv->get_key_name = in_evdev_get_key_name;