957a9eac |
1 | /* |
f89d8471 |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2008-2012 |
957a9eac |
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. |
f89d8471 |
8 | * - MAME license. |
957a9eac |
9 | * See the COPYING file in the top-level directory. |
10 | */ |
11 | |
d92ea048 |
12 | #include <stdio.h> |
86883f7f |
13 | #include <stdlib.h> |
d92ea048 |
14 | #include <string.h> |
15 | #include <sys/types.h> |
16 | #include <sys/stat.h> |
17 | #include <fcntl.h> |
18 | #include <sys/ioctl.h> |
19 | #include <unistd.h> |
20 | #include <linux/input.h> |
21 | #include <errno.h> |
22 | |
a86e9a3e |
23 | #include "../input.h" |
34581c95 |
24 | #include "in_evdev.h" |
d92ea048 |
25 | |
f342bede |
26 | #define MAX_ABS_DEVS 8 |
27 | |
86883f7f |
28 | typedef struct { |
29 | int fd; |
0d6fbb2c |
30 | int *kbits; |
f342bede |
31 | int abs_min_x; /* abs->digital mapping */ |
e9b29264 |
32 | int abs_max_x; |
33 | int abs_min_y; |
34 | int abs_max_y; |
86883f7f |
35 | int abs_lzone; |
86883f7f |
36 | int abs_lastx; |
37 | int abs_lasty; |
e9b29264 |
38 | int kc_first; |
39 | int kc_last; |
f342bede |
40 | unsigned int abs_count; |
2f54e52c |
41 | int abs_mult[MAX_ABS_DEVS]; /* 16.16 multiplier to IN_ABS_RANGE */ |
42 | int abs_adj[MAX_ABS_DEVS]; /* adjust for centering */ |
f342bede |
43 | unsigned int abs_to_digital:1; |
86883f7f |
44 | } in_evdev_t; |
45 | |
8e77275e |
46 | #ifndef KEY_CNT |
47 | #define KEY_CNT (KEY_MAX + 1) |
48 | #endif |
49 | |
da767bd5 |
50 | #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \ |
d92ea048 |
51 | (1 << ((x) & (sizeof(keybits[0])*8-1)))) |
52 | |
86883f7f |
53 | #define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \ |
54 | (1 << ((x) & (sizeof(keybits[0])*8-1)))) |
55 | |
0d6fbb2c |
56 | #define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \ |
57 | ~(1 << ((x) & (sizeof(keybits[0])*8-1)))) |
58 | |
0c924681 |
59 | int in_evdev_allow_abs_only; |
60 | |
9056e81f |
61 | #define IN_EVDEV_PREFIX "evdev:" |
62 | |
8e77275e |
63 | static const char * const in_evdev_keys[KEY_CNT] = { |
cab91943 |
64 | // [0 ... KEY_MAX] = NULL, // not necessary |
595491c4 |
65 | [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc", |
66 | [KEY_1] = "1", [KEY_2] = "2", |
67 | [KEY_3] = "3", [KEY_4] = "4", |
68 | [KEY_5] = "5", [KEY_6] = "6", |
69 | [KEY_7] = "7", [KEY_8] = "8", |
70 | [KEY_9] = "9", [KEY_0] = "0", |
71 | [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal", |
72 | [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab", |
73 | [KEY_Q] = "Q", [KEY_W] = "W", |
74 | [KEY_E] = "E", [KEY_R] = "R", |
75 | [KEY_T] = "T", [KEY_Y] = "Y", |
76 | [KEY_U] = "U", [KEY_I] = "I", |
77 | [KEY_O] = "O", [KEY_P] = "P", |
78 | [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace", |
79 | [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl", |
80 | [KEY_A] = "A", [KEY_S] = "S", |
81 | [KEY_D] = "D", [KEY_F] = "F", |
82 | [KEY_G] = "G", [KEY_H] = "H", |
83 | [KEY_J] = "J", [KEY_K] = "K", |
84 | [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon", |
85 | [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave", |
86 | [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash", |
87 | [KEY_Z] = "Z", [KEY_X] = "X", |
88 | [KEY_C] = "C", [KEY_V] = "V", |
89 | [KEY_B] = "B", [KEY_N] = "N", |
90 | [KEY_M] = "M", [KEY_COMMA] = "Comma", |
91 | [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash", |
92 | [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk", |
93 | [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space", |
94 | [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1", |
95 | [KEY_F2] = "F2", [KEY_F3] = "F3", |
96 | [KEY_F4] = "F4", [KEY_F5] = "F5", |
97 | [KEY_F6] = "F6", [KEY_F7] = "F7", |
98 | [KEY_F8] = "F8", [KEY_F9] = "F9", |
99 | [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock", |
100 | [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7", |
101 | [KEY_KP8] = "KP8", [KEY_KP9] = "KP9", |
102 | [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4", |
103 | [KEY_KP5] = "KP5", [KEY_KP6] = "KP6", |
104 | [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1", |
105 | [KEY_KP2] = "KP2", [KEY_KP3] = "KP3", |
106 | [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot", |
107 | [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd", |
108 | [KEY_F11] = "F11", [KEY_F12] = "F12", |
109 | [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter", |
110 | [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash", |
111 | [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt", |
112 | [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home", |
113 | [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp", |
114 | [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right", |
115 | [KEY_END] = "End", [KEY_DOWN] = "Down", |
116 | [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert", |
117 | [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro", |
118 | [KEY_HELP] = "Help", [KEY_MENU] = "Menu", |
119 | [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction", |
120 | [BTN_0] = "Btn0", [BTN_1] = "Btn1", |
121 | [BTN_2] = "Btn2", [BTN_3] = "Btn3", |
122 | [BTN_4] = "Btn4", [BTN_5] = "Btn5", |
123 | [BTN_6] = "Btn6", [BTN_7] = "Btn7", |
124 | [BTN_8] = "Btn8", [BTN_9] = "Btn9", |
125 | [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn", |
126 | [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn", |
127 | [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn", |
128 | [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn", |
129 | [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn", |
130 | [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn", |
131 | [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn", |
132 | [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2", |
133 | [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4", |
134 | [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6", |
135 | [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA", |
136 | [BTN_B] = "BtnB", [BTN_C] = "BtnC", |
137 | [BTN_X] = "BtnX", [BTN_Y] = "BtnY", |
138 | [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL", |
139 | [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2", |
140 | [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect", |
141 | [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode", |
142 | [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR", |
143 | [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus", |
144 | [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap", |
145 | [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn", |
146 | [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok", |
147 | }; |
148 | |
149 | |
da767bd5 |
150 | static void in_evdev_probe(void) |
d92ea048 |
151 | { |
fbe11103 |
152 | long keybits[KEY_CNT / sizeof(long) / 8]; |
153 | long absbits[(ABS_MAX+1) / sizeof(long) / 8]; |
d92ea048 |
154 | int i; |
155 | |
fbe11103 |
156 | // the kernel might support and return less keys then we know about, |
157 | // so make sure the buffers are clear. |
158 | memset(keybits, 0, sizeof(keybits)); |
159 | memset(absbits, 0, sizeof(absbits)); |
160 | |
2258f158 |
161 | for (i = 0;; i++) |
d92ea048 |
162 | { |
d92ea048 |
163 | int support = 0, count = 0; |
f342bede |
164 | int u, ret, fd, kc_first = KEY_MAX, kc_last = 0, have_abs = 0; |
86883f7f |
165 | in_evdev_t *dev; |
d92ea048 |
166 | char name[64]; |
167 | |
168 | snprintf(name, sizeof(name), "/dev/input/event%d", i); |
0b3e1198 |
169 | fd = open(name, O_RDONLY|O_NONBLOCK); |
8e77275e |
170 | if (fd == -1) { |
171 | if (errno == EACCES) |
172 | continue; /* maybe we can access next one */ |
d92ea048 |
173 | break; |
8e77275e |
174 | } |
d92ea048 |
175 | |
176 | /* check supported events */ |
177 | ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support); |
178 | if (ret == -1) { |
2258f158 |
179 | printf("in_evdev: ioctl failed on %s\n", name); |
d92ea048 |
180 | goto skip; |
181 | } |
182 | |
0c924681 |
183 | if (support & (1 << EV_KEY)) { |
184 | ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits); |
185 | if (ret == -1) { |
186 | printf("in_evdev: ioctl failed on %s\n", name); |
187 | goto skip; |
188 | } |
d92ea048 |
189 | |
0c924681 |
190 | /* check for interesting keys */ |
191 | for (u = 0; u < KEY_CNT; u++) { |
192 | if (KEYBITS_BIT(u)) { |
193 | if (u < kc_first) |
194 | kc_first = u; |
195 | if (u > kc_last) |
196 | kc_last = u; |
197 | if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH) |
198 | count++; |
199 | if (u == BTN_TOUCH) /* we can't deal with ts currently */ |
200 | goto skip; |
201 | } |
e9b29264 |
202 | } |
d92ea048 |
203 | } |
204 | |
86883f7f |
205 | dev = calloc(1, sizeof(*dev)); |
206 | if (dev == NULL) |
207 | goto skip; |
208 | |
0d6fbb2c |
209 | ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits); |
210 | if (ret == -1) { |
211 | printf("Warning: EVIOCGKEY not supported, will have to track state\n"); |
212 | dev->kbits = calloc(KEY_CNT, sizeof(int)); |
213 | if (dev->kbits == NULL) { |
214 | free(dev); |
215 | goto skip; |
216 | } |
217 | } |
218 | |
86883f7f |
219 | /* check for abs too */ |
220 | if (support & (1 << EV_ABS)) { |
221 | struct input_absinfo ainfo; |
222 | int dist; |
223 | ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits); |
224 | if (ret == -1) |
225 | goto no_abs; |
226 | if (absbits[0] & (1 << ABS_X)) { |
227 | ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo); |
228 | if (ret == -1) |
229 | goto no_abs; |
230 | dist = ainfo.maximum - ainfo.minimum; |
e9b29264 |
231 | dev->abs_lzone = dist / 4; |
232 | dev->abs_min_x = ainfo.minimum; |
233 | dev->abs_max_x = ainfo.maximum; |
86883f7f |
234 | } |
235 | if (absbits[0] & (1 << ABS_Y)) { |
236 | ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo); |
237 | if (ret == -1) |
238 | goto no_abs; |
239 | dist = ainfo.maximum - ainfo.minimum; |
e9b29264 |
240 | dev->abs_min_y = ainfo.minimum; |
241 | dev->abs_max_y = ainfo.maximum; |
86883f7f |
242 | } |
f342bede |
243 | for (u = 0; u < MAX_ABS_DEVS; u++) { |
244 | ret = ioctl(fd, EVIOCGABS(u), &ainfo); |
245 | if (ret == -1) |
246 | break; |
247 | dist = ainfo.maximum - ainfo.minimum; |
248 | if (dist != 0) |
249 | dev->abs_mult[u] = IN_ABS_RANGE * 2 * 65536 / dist; |
2f54e52c |
250 | dev->abs_adj[u] = -(ainfo.maximum + ainfo.minimum + 1) / 2; |
f342bede |
251 | have_abs = 1; |
252 | } |
253 | dev->abs_count = u; |
86883f7f |
254 | } |
255 | |
256 | no_abs: |
f342bede |
257 | if (count == 0 && !have_abs) { |
0c924681 |
258 | free(dev); |
259 | goto skip; |
260 | } |
261 | |
86883f7f |
262 | dev->fd = fd; |
e9b29264 |
263 | dev->kc_first = kc_first; |
264 | dev->kc_last = kc_last; |
f342bede |
265 | if (count > 0 || in_evdev_allow_abs_only) |
266 | dev->abs_to_digital = 1; |
9056e81f |
267 | strcpy(name, IN_EVDEV_PREFIX); |
2258f158 |
268 | ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6); |
269 | printf("in_evdev: found \"%s\" with %d events (type %08x)\n", |
270 | name+6, count, support); |
9056e81f |
271 | in_register(name, fd, dev, KEY_CNT, in_evdev_keys, 0); |
d92ea048 |
272 | continue; |
273 | |
274 | skip: |
275 | close(fd); |
276 | } |
d92ea048 |
277 | } |
278 | |
da767bd5 |
279 | static void in_evdev_free(void *drv_data) |
2258f158 |
280 | { |
86883f7f |
281 | in_evdev_t *dev = drv_data; |
282 | if (dev == NULL) |
283 | return; |
284 | close(dev->fd); |
285 | free(dev); |
2258f158 |
286 | } |
287 | |
090c1b1a |
288 | static const char * const * |
289 | in_evdev_get_key_names(int *count) |
d92ea048 |
290 | { |
090c1b1a |
291 | *count = KEY_CNT; |
292 | return in_evdev_keys; |
d92ea048 |
293 | } |
294 | |
8e77275e |
295 | static void or_binds(const int *binds, int key, int *result) |
296 | { |
297 | int t; |
298 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) |
299 | result[t] |= binds[IN_BIND_OFFS(key, t)]; |
300 | } |
301 | |
302 | /* ORs result with binds of pressed buttons |
303 | * XXX: should measure performance hit of this func, might need to optimize */ |
9056e81f |
304 | static int in_evdev_update(void *drv_data, const int *binds, int *result) |
d92ea048 |
305 | { |
306 | struct input_event ev[16]; |
86883f7f |
307 | struct input_absinfo ainfo; |
0d6fbb2c |
308 | int keybits_[KEY_CNT / sizeof(int)]; |
309 | int *keybits = keybits_; |
86883f7f |
310 | in_evdev_t *dev = drv_data; |
e9b29264 |
311 | int rd, ret, u, lzone; |
d92ea048 |
312 | |
0d6fbb2c |
313 | if (dev->kbits == NULL) { |
782b026e |
314 | ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_); |
0d6fbb2c |
315 | if (ret == -1) { |
316 | perror("in_evdev: ioctl failed"); |
317 | return -1; |
d92ea048 |
318 | } |
2258f158 |
319 | } |
0d6fbb2c |
320 | else { |
321 | keybits = dev->kbits; |
322 | while (1) { |
323 | rd = read(dev->fd, ev, sizeof(ev)); |
324 | if (rd < (int)sizeof(ev[0])) { |
325 | if (errno != EAGAIN) |
326 | perror("in_evdev: read failed"); |
327 | break; |
328 | } |
329 | for (u = 0; u < rd / sizeof(ev[0]); u++) { |
330 | if (ev[u].type != EV_KEY) |
331 | continue; |
332 | else if (ev[u].value == 1) |
333 | KEYBITS_BIT_SET(ev[u].code); |
334 | else if (ev[u].value == 0) |
335 | KEYBITS_BIT_CLEAR(ev[u].code); |
336 | } |
337 | } |
2258f158 |
338 | } |
d92ea048 |
339 | |
e9b29264 |
340 | for (u = dev->kc_first; u <= dev->kc_last; u++) { |
8e77275e |
341 | if (KEYBITS_BIT(u)) |
342 | or_binds(binds, u, result); |
d92ea048 |
343 | } |
344 | |
86883f7f |
345 | /* map X and Y absolute to UDLR */ |
e9b29264 |
346 | lzone = dev->abs_lzone; |
f342bede |
347 | if (dev->abs_to_digital && lzone != 0) { |
86883f7f |
348 | ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo); |
349 | if (ret != -1) { |
e9b29264 |
350 | if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result); |
351 | if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result); |
86883f7f |
352 | } |
86883f7f |
353 | ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo); |
354 | if (ret != -1) { |
e9b29264 |
355 | if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result); |
356 | if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result); |
86883f7f |
357 | } |
358 | } |
359 | |
8e77275e |
360 | return 0; |
d92ea048 |
361 | } |
362 | |
f342bede |
363 | static int in_evdev_update_analog(void *drv_data, int axis_id, int *result) |
364 | { |
365 | struct input_absinfo ainfo; |
366 | in_evdev_t *dev = drv_data; |
367 | int ret; |
368 | |
369 | if ((unsigned int)axis_id >= MAX_ABS_DEVS) |
370 | return -1; |
371 | |
372 | ret = ioctl(dev->fd, EVIOCGABS(axis_id), &ainfo); |
373 | if (ret != 0) |
374 | return ret; |
375 | |
2f54e52c |
376 | *result = (ainfo.value + dev->abs_adj[axis_id]) * dev->abs_mult[axis_id]; |
377 | *result >>= 16; |
f342bede |
378 | return 0; |
379 | } |
380 | |
e9b29264 |
381 | static int in_evdev_set_blocking(in_evdev_t *dev, int y) |
34581c95 |
382 | { |
34581c95 |
383 | long flags; |
595491c4 |
384 | int ret; |
34581c95 |
385 | |
86883f7f |
386 | flags = (long)fcntl(dev->fd, F_GETFL); |
595491c4 |
387 | if ((int)flags == -1) { |
388 | perror("in_evdev: F_GETFL fcntl failed"); |
e9b29264 |
389 | return -1; |
34581c95 |
390 | } |
0c2e114e |
391 | |
392 | if (flags & O_NONBLOCK) { |
393 | /* flush the event queue */ |
394 | struct input_event ev; |
395 | do { |
396 | ret = read(dev->fd, &ev, sizeof(ev)); |
397 | } |
398 | while (ret == sizeof(ev)); |
399 | } |
400 | |
595491c4 |
401 | if (y) |
402 | flags &= ~O_NONBLOCK; |
403 | else |
404 | flags |= O_NONBLOCK; |
86883f7f |
405 | ret = fcntl(dev->fd, F_SETFL, flags); |
e9b29264 |
406 | if (ret == -1) { |
595491c4 |
407 | perror("in_evdev: F_SETFL fcntl failed"); |
e9b29264 |
408 | return -1; |
409 | } |
410 | |
411 | return 0; |
412 | } |
413 | |
f342bede |
414 | static int in_evdev_get_config(void *drv_data, int what, int *val) |
415 | { |
416 | in_evdev_t *dev = drv_data; |
417 | |
418 | switch (what) { |
419 | case IN_CFG_ABS_AXIS_COUNT: |
420 | *val = dev->abs_count; |
421 | break; |
422 | default: |
423 | return -1; |
424 | } |
425 | |
426 | return 0; |
427 | } |
428 | |
e9b29264 |
429 | static int in_evdev_set_config(void *drv_data, int what, int val) |
430 | { |
431 | in_evdev_t *dev = drv_data; |
432 | int tmp; |
433 | |
434 | switch (what) { |
435 | case IN_CFG_BLOCKING: |
436 | return in_evdev_set_blocking(dev, val); |
437 | case IN_CFG_ABS_DEAD_ZONE: |
438 | if (val < 1 || val > 99 || dev->abs_lzone == 0) |
439 | return -1; |
440 | /* XXX: based on X axis only, for now.. */ |
441 | tmp = (dev->abs_max_x - dev->abs_min_x) / 2; |
442 | dev->abs_lzone = tmp - tmp * val / 100; |
443 | if (dev->abs_lzone < 1) |
444 | dev->abs_lzone = 1; |
445 | else if (dev->abs_lzone >= tmp) |
446 | dev->abs_lzone = tmp - 1; |
447 | break; |
448 | default: |
449 | return -1; |
450 | } |
451 | |
452 | return 0; |
595491c4 |
453 | } |
454 | |
7f022a8d |
455 | static int in_evdev_update_keycode(void *data, int *is_down) |
595491c4 |
456 | { |
e9b29264 |
457 | int ret_kc = -1, ret_down = 0; |
7f022a8d |
458 | in_evdev_t *dev = data; |
459 | struct input_event ev; |
460 | int rd; |
906bdc9f |
461 | |
e3068458 |
462 | /* do single event, the caller sometimes wants |
463 | * to do select() in blocking mode */ |
464 | rd = read(dev->fd, &ev, sizeof(ev)); |
465 | if (rd < (int) sizeof(ev)) { |
466 | if (errno != EAGAIN) { |
467 | perror("in_evdev: error reading"); |
090c1b1a |
468 | //sleep(1); |
469 | ret_kc = -2; |
74065be8 |
470 | } |
e3068458 |
471 | goto out; |
472 | } |
e9b29264 |
473 | |
e3068458 |
474 | if (ev.type == EV_KEY) { |
475 | if (ev.value < 0 || ev.value > 1) |
e9b29264 |
476 | goto out; |
e3068458 |
477 | ret_kc = ev.code; |
478 | ret_down = ev.value; |
479 | goto out; |
480 | } |
f342bede |
481 | else if (ev.type == EV_ABS && dev->abs_to_digital) |
e3068458 |
482 | { |
483 | int lzone = dev->abs_lzone, down = 0, *last; |
484 | |
485 | // map absolute to up/down/left/right |
486 | if (lzone != 0 && ev.code == ABS_X) { |
487 | if (ev.value < dev->abs_min_x + lzone) |
488 | down = KEY_LEFT; |
489 | else if (ev.value > dev->abs_max_x - lzone) |
490 | down = KEY_RIGHT; |
491 | last = &dev->abs_lastx; |
74065be8 |
492 | } |
e3068458 |
493 | else if (lzone != 0 && ev.code == ABS_Y) { |
494 | if (ev.value < dev->abs_min_y + lzone) |
495 | down = KEY_UP; |
496 | else if (ev.value > dev->abs_max_y - lzone) |
497 | down = KEY_DOWN; |
498 | last = &dev->abs_lasty; |
499 | } |
500 | else |
501 | goto out; |
502 | |
503 | if (down == *last) |
504 | goto out; |
505 | |
506 | if (down == 0 || *last != 0) { |
507 | /* key up or direction change, return up event for old key */ |
508 | ret_kc = *last; |
509 | ret_down = 0; |
510 | *last = 0; |
e9b29264 |
511 | goto out; |
34581c95 |
512 | } |
e3068458 |
513 | ret_kc = *last = down; |
514 | ret_down = 1; |
515 | goto out; |
34581c95 |
516 | } |
7f022a8d |
517 | |
e9b29264 |
518 | out: |
519 | if (is_down != NULL) |
520 | *is_down = ret_down; |
521 | |
522 | return ret_kc; |
595491c4 |
523 | } |
34581c95 |
524 | |
82abf46f |
525 | static const struct { |
526 | short key; |
527 | short pbtn; |
528 | } key_pbtn_map[] = |
529 | { |
530 | { KEY_UP, PBTN_UP }, |
531 | { KEY_DOWN, PBTN_DOWN }, |
532 | { KEY_LEFT, PBTN_LEFT }, |
533 | { KEY_RIGHT, PBTN_RIGHT }, |
e9b29264 |
534 | /* XXX: maybe better set this from it's plat code somehow */ |
535 | /* Pandora */ |
f6eaae4f |
536 | { KEY_END, PBTN_MOK }, |
f6eaae4f |
537 | { KEY_PAGEDOWN, PBTN_MBACK }, |
f6eaae4f |
538 | { KEY_HOME, PBTN_MA2 }, |
f6eaae4f |
539 | { KEY_PAGEUP, PBTN_MA3 }, |
b2c5ee47 |
540 | { KEY_LEFTCTRL, PBTN_MENU }, |
f6eaae4f |
541 | { KEY_RIGHTSHIFT, PBTN_L }, |
f6eaae4f |
542 | { KEY_RIGHTCTRL, PBTN_R }, |
e9b29264 |
543 | /* Caanoo */ |
544 | { BTN_THUMB2, PBTN_MOK }, |
545 | { BTN_THUMB, PBTN_MBACK }, |
546 | { BTN_TRIGGER, PBTN_MA2 }, |
547 | { BTN_TOP, PBTN_MA3 }, |
548 | { BTN_BASE, PBTN_MENU }, |
549 | { BTN_TOP2, PBTN_L }, |
550 | { BTN_PINKIE, PBTN_R }, |
551 | /* "normal" keyboards */ |
552 | { KEY_ENTER, PBTN_MOK }, |
553 | { KEY_ESC, PBTN_MBACK }, |
d1f5849c |
554 | { KEY_SEMICOLON, PBTN_MA2 }, |
555 | { KEY_APOSTROPHE, PBTN_MA3 }, |
e9b29264 |
556 | { KEY_BACKSLASH, PBTN_MENU }, |
557 | { KEY_LEFTBRACE, PBTN_L }, |
82abf46f |
558 | { KEY_RIGHTBRACE, PBTN_R }, |
559 | }; |
560 | |
561 | #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0])) |
562 | |
dd1e7172 |
563 | static int in_evdev_menu_translate(void *drv_data, int keycode, char *charcode) |
595491c4 |
564 | { |
e9b29264 |
565 | in_evdev_t *dev = drv_data; |
dd1e7172 |
566 | int ret = 0; |
82abf46f |
567 | int i; |
e9b29264 |
568 | |
82abf46f |
569 | if (keycode < 0) |
570 | { |
571 | /* menu -> kc */ |
572 | keycode = -keycode; |
573 | for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) |
e9b29264 |
574 | if (key_pbtn_map[i].pbtn == keycode) { |
575 | int k = key_pbtn_map[i].key; |
576 | /* should really check EVIOCGBIT, but this is enough for now */ |
577 | if (dev->kc_first <= k && k <= dev->kc_last) |
578 | return k; |
579 | } |
34581c95 |
580 | } |
82abf46f |
581 | else |
582 | { |
dd1e7172 |
583 | for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) { |
584 | if (key_pbtn_map[i].key == keycode) { |
585 | ret = key_pbtn_map[i].pbtn; |
586 | break; |
587 | } |
588 | } |
589 | |
590 | if (charcode != NULL && (unsigned int)keycode < KEY_CNT && |
591 | in_evdev_keys[keycode] != NULL && in_evdev_keys[keycode][1] == 0) |
592 | { |
593 | char c = in_evdev_keys[keycode][0]; |
594 | if ('A' <= c && c <= 'Z') |
595 | c = 'a' + c - 'A'; |
596 | ret |= PBTN_CHAR; |
597 | *charcode = c; |
598 | } |
82abf46f |
599 | } |
600 | |
dd1e7172 |
601 | return ret; |
595491c4 |
602 | } |
34581c95 |
603 | |
86883f7f |
604 | /* remove binds of missing keys, count remaining ones */ |
8e77275e |
605 | static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds) |
da767bd5 |
606 | { |
8e77275e |
607 | int keybits[KEY_CNT / sizeof(int)]; |
86883f7f |
608 | in_evdev_t *dev = drv_data; |
8e77275e |
609 | int i, t, ret, offs, count = 0; |
da767bd5 |
610 | |
bde5dcbb |
611 | memset(keybits, 0, sizeof(keybits)); |
86883f7f |
612 | ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits); |
da767bd5 |
613 | if (ret == -1) { |
614 | perror("in_evdev: ioctl failed"); |
bde5dcbb |
615 | // memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */ |
da767bd5 |
616 | } |
617 | |
f342bede |
618 | if (dev->abs_to_digital && dev->abs_lzone != 0) { |
86883f7f |
619 | KEYBITS_BIT_SET(KEY_LEFT); |
620 | KEYBITS_BIT_SET(KEY_RIGHT); |
86883f7f |
621 | KEYBITS_BIT_SET(KEY_UP); |
622 | KEYBITS_BIT_SET(KEY_DOWN); |
623 | } |
624 | |
8e77275e |
625 | for (i = 0; i < KEY_CNT; i++) { |
626 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) { |
627 | offs = IN_BIND_OFFS(i, t); |
628 | if (!KEYBITS_BIT(i)) |
629 | binds[offs] = def_binds[offs] = 0; |
630 | if (binds[offs]) |
631 | count++; |
632 | } |
da767bd5 |
633 | } |
634 | |
635 | return count; |
636 | } |
637 | |
9056e81f |
638 | static const in_drv_t in_evdev_drv = { |
639 | .prefix = IN_EVDEV_PREFIX, |
640 | .probe = in_evdev_probe, |
641 | .free = in_evdev_free, |
642 | .get_key_names = in_evdev_get_key_names, |
9056e81f |
643 | .clean_binds = in_evdev_clean_binds, |
f342bede |
644 | .get_config = in_evdev_get_config, |
9056e81f |
645 | .set_config = in_evdev_set_config, |
646 | .update = in_evdev_update, |
f342bede |
647 | .update_analog = in_evdev_update_analog, |
9056e81f |
648 | .update_keycode = in_evdev_update_keycode, |
649 | .menu_translate = in_evdev_menu_translate, |
650 | }; |
651 | |
705bdf63 |
652 | void in_evdev_init(const struct in_default_bind *defbinds) |
da767bd5 |
653 | { |
705bdf63 |
654 | in_register_driver(&in_evdev_drv, defbinds); |
da767bd5 |
655 | } |
656 | |