Commit | Line | Data |
---|---|---|
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; |
c19e28f6 PC |
44 | |
45 | const in_drv_t *drv; | |
86883f7f | 46 | } in_evdev_t; |
47 | ||
8e77275e | 48 | #ifndef KEY_CNT |
49 | #define KEY_CNT (KEY_MAX + 1) | |
50 | #endif | |
51 | ||
da767bd5 | 52 | #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \ |
d92ea048 | 53 | (1 << ((x) & (sizeof(keybits[0])*8-1)))) |
54 | ||
86883f7f | 55 | #define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \ |
56 | (1 << ((x) & (sizeof(keybits[0])*8-1)))) | |
57 | ||
0d6fbb2c | 58 | #define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \ |
59 | ~(1 << ((x) & (sizeof(keybits[0])*8-1)))) | |
60 | ||
0c924681 | 61 | int in_evdev_allow_abs_only; |
62 | ||
9056e81f | 63 | #define IN_EVDEV_PREFIX "evdev:" |
64 | ||
8e77275e | 65 | static const char * const in_evdev_keys[KEY_CNT] = { |
cab91943 | 66 | // [0 ... KEY_MAX] = NULL, // not necessary |
595491c4 | 67 | [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc", |
68 | [KEY_1] = "1", [KEY_2] = "2", | |
69 | [KEY_3] = "3", [KEY_4] = "4", | |
70 | [KEY_5] = "5", [KEY_6] = "6", | |
71 | [KEY_7] = "7", [KEY_8] = "8", | |
72 | [KEY_9] = "9", [KEY_0] = "0", | |
73 | [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal", | |
74 | [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab", | |
75 | [KEY_Q] = "Q", [KEY_W] = "W", | |
76 | [KEY_E] = "E", [KEY_R] = "R", | |
77 | [KEY_T] = "T", [KEY_Y] = "Y", | |
78 | [KEY_U] = "U", [KEY_I] = "I", | |
79 | [KEY_O] = "O", [KEY_P] = "P", | |
80 | [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace", | |
81 | [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl", | |
82 | [KEY_A] = "A", [KEY_S] = "S", | |
83 | [KEY_D] = "D", [KEY_F] = "F", | |
84 | [KEY_G] = "G", [KEY_H] = "H", | |
85 | [KEY_J] = "J", [KEY_K] = "K", | |
86 | [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon", | |
87 | [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave", | |
88 | [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash", | |
89 | [KEY_Z] = "Z", [KEY_X] = "X", | |
90 | [KEY_C] = "C", [KEY_V] = "V", | |
91 | [KEY_B] = "B", [KEY_N] = "N", | |
92 | [KEY_M] = "M", [KEY_COMMA] = "Comma", | |
93 | [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash", | |
94 | [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk", | |
95 | [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space", | |
96 | [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1", | |
97 | [KEY_F2] = "F2", [KEY_F3] = "F3", | |
98 | [KEY_F4] = "F4", [KEY_F5] = "F5", | |
99 | [KEY_F6] = "F6", [KEY_F7] = "F7", | |
100 | [KEY_F8] = "F8", [KEY_F9] = "F9", | |
101 | [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock", | |
102 | [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7", | |
103 | [KEY_KP8] = "KP8", [KEY_KP9] = "KP9", | |
104 | [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4", | |
105 | [KEY_KP5] = "KP5", [KEY_KP6] = "KP6", | |
106 | [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1", | |
107 | [KEY_KP2] = "KP2", [KEY_KP3] = "KP3", | |
108 | [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot", | |
109 | [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd", | |
110 | [KEY_F11] = "F11", [KEY_F12] = "F12", | |
111 | [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter", | |
112 | [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash", | |
113 | [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt", | |
114 | [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home", | |
115 | [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp", | |
116 | [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right", | |
117 | [KEY_END] = "End", [KEY_DOWN] = "Down", | |
118 | [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert", | |
119 | [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro", | |
120 | [KEY_HELP] = "Help", [KEY_MENU] = "Menu", | |
121 | [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction", | |
122 | [BTN_0] = "Btn0", [BTN_1] = "Btn1", | |
123 | [BTN_2] = "Btn2", [BTN_3] = "Btn3", | |
124 | [BTN_4] = "Btn4", [BTN_5] = "Btn5", | |
125 | [BTN_6] = "Btn6", [BTN_7] = "Btn7", | |
126 | [BTN_8] = "Btn8", [BTN_9] = "Btn9", | |
127 | [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn", | |
128 | [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn", | |
129 | [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn", | |
130 | [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn", | |
131 | [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn", | |
132 | [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn", | |
133 | [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn", | |
134 | [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2", | |
135 | [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4", | |
136 | [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6", | |
137 | [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA", | |
138 | [BTN_B] = "BtnB", [BTN_C] = "BtnC", | |
139 | [BTN_X] = "BtnX", [BTN_Y] = "BtnY", | |
140 | [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL", | |
141 | [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2", | |
142 | [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect", | |
143 | [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode", | |
144 | [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR", | |
145 | [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus", | |
146 | [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap", | |
147 | [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn", | |
148 | [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok", | |
149 | }; | |
150 | ||
151 | ||
c19e28f6 | 152 | static void in_evdev_probe(const in_drv_t *drv) |
d92ea048 | 153 | { |
fbe11103 | 154 | long keybits[KEY_CNT / sizeof(long) / 8]; |
155 | long absbits[(ABS_MAX+1) / sizeof(long) / 8]; | |
d92ea048 | 156 | int i; |
157 | ||
fbe11103 | 158 | // the kernel might support and return less keys then we know about, |
159 | // so make sure the buffers are clear. | |
160 | memset(keybits, 0, sizeof(keybits)); | |
161 | memset(absbits, 0, sizeof(absbits)); | |
162 | ||
2258f158 | 163 | for (i = 0;; i++) |
d92ea048 | 164 | { |
d92ea048 | 165 | int support = 0, count = 0; |
f342bede | 166 | int u, ret, fd, kc_first = KEY_MAX, kc_last = 0, have_abs = 0; |
86883f7f | 167 | in_evdev_t *dev; |
d92ea048 | 168 | char name[64]; |
169 | ||
170 | snprintf(name, sizeof(name), "/dev/input/event%d", i); | |
0b3e1198 | 171 | fd = open(name, O_RDONLY|O_NONBLOCK); |
8e77275e | 172 | if (fd == -1) { |
173 | if (errno == EACCES) | |
174 | continue; /* maybe we can access next one */ | |
d92ea048 | 175 | break; |
8e77275e | 176 | } |
d92ea048 | 177 | |
178 | /* check supported events */ | |
179 | ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support); | |
180 | if (ret == -1) { | |
2258f158 | 181 | printf("in_evdev: ioctl failed on %s\n", name); |
d92ea048 | 182 | goto skip; |
183 | } | |
184 | ||
0c924681 | 185 | if (support & (1 << EV_KEY)) { |
186 | ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits); | |
187 | if (ret == -1) { | |
188 | printf("in_evdev: ioctl failed on %s\n", name); | |
189 | goto skip; | |
190 | } | |
d92ea048 | 191 | |
0c924681 | 192 | /* check for interesting keys */ |
193 | for (u = 0; u < KEY_CNT; u++) { | |
194 | if (KEYBITS_BIT(u)) { | |
195 | if (u < kc_first) | |
196 | kc_first = u; | |
197 | if (u > kc_last) | |
198 | kc_last = u; | |
199 | if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH) | |
200 | count++; | |
201 | if (u == BTN_TOUCH) /* we can't deal with ts currently */ | |
202 | goto skip; | |
203 | } | |
e9b29264 | 204 | } |
d92ea048 | 205 | } |
206 | ||
86883f7f | 207 | dev = calloc(1, sizeof(*dev)); |
208 | if (dev == NULL) | |
209 | goto skip; | |
210 | ||
c19e28f6 PC |
211 | dev->drv = drv; |
212 | ||
0d6fbb2c | 213 | ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits); |
214 | if (ret == -1) { | |
215 | printf("Warning: EVIOCGKEY not supported, will have to track state\n"); | |
216 | dev->kbits = calloc(KEY_CNT, sizeof(int)); | |
217 | if (dev->kbits == NULL) { | |
218 | free(dev); | |
219 | goto skip; | |
220 | } | |
221 | } | |
222 | ||
86883f7f | 223 | /* check for abs too */ |
224 | if (support & (1 << EV_ABS)) { | |
225 | struct input_absinfo ainfo; | |
226 | int dist; | |
227 | ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits); | |
228 | if (ret == -1) | |
229 | goto no_abs; | |
230 | if (absbits[0] & (1 << ABS_X)) { | |
231 | ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo); | |
232 | if (ret == -1) | |
233 | goto no_abs; | |
234 | dist = ainfo.maximum - ainfo.minimum; | |
e9b29264 | 235 | dev->abs_lzone = dist / 4; |
236 | dev->abs_min_x = ainfo.minimum; | |
237 | dev->abs_max_x = ainfo.maximum; | |
86883f7f | 238 | } |
239 | if (absbits[0] & (1 << ABS_Y)) { | |
240 | ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo); | |
241 | if (ret == -1) | |
242 | goto no_abs; | |
243 | dist = ainfo.maximum - ainfo.minimum; | |
e9b29264 | 244 | dev->abs_min_y = ainfo.minimum; |
245 | dev->abs_max_y = ainfo.maximum; | |
86883f7f | 246 | } |
f342bede | 247 | for (u = 0; u < MAX_ABS_DEVS; u++) { |
248 | ret = ioctl(fd, EVIOCGABS(u), &ainfo); | |
249 | if (ret == -1) | |
250 | break; | |
251 | dist = ainfo.maximum - ainfo.minimum; | |
252 | if (dist != 0) | |
253 | dev->abs_mult[u] = IN_ABS_RANGE * 2 * 65536 / dist; | |
2f54e52c | 254 | dev->abs_adj[u] = -(ainfo.maximum + ainfo.minimum + 1) / 2; |
f342bede | 255 | have_abs = 1; |
256 | } | |
257 | dev->abs_count = u; | |
86883f7f | 258 | } |
259 | ||
260 | no_abs: | |
f342bede | 261 | if (count == 0 && !have_abs) { |
0c924681 | 262 | free(dev); |
263 | goto skip; | |
264 | } | |
265 | ||
86883f7f | 266 | dev->fd = fd; |
e9b29264 | 267 | dev->kc_first = kc_first; |
268 | dev->kc_last = kc_last; | |
f342bede | 269 | if (count > 0 || in_evdev_allow_abs_only) |
270 | dev->abs_to_digital = 1; | |
9056e81f | 271 | strcpy(name, IN_EVDEV_PREFIX); |
2258f158 | 272 | ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6); |
273 | printf("in_evdev: found \"%s\" with %d events (type %08x)\n", | |
274 | name+6, count, support); | |
9056e81f | 275 | in_register(name, fd, dev, KEY_CNT, in_evdev_keys, 0); |
d92ea048 | 276 | continue; |
277 | ||
278 | skip: | |
279 | close(fd); | |
280 | } | |
d92ea048 | 281 | } |
282 | ||
da767bd5 | 283 | static void in_evdev_free(void *drv_data) |
2258f158 | 284 | { |
86883f7f | 285 | in_evdev_t *dev = drv_data; |
286 | if (dev == NULL) | |
287 | return; | |
288 | close(dev->fd); | |
289 | free(dev); | |
2258f158 | 290 | } |
291 | ||
090c1b1a | 292 | static const char * const * |
d685ce46 | 293 | in_evdev_get_key_names(const in_drv_t *drv, int *count) |
d92ea048 | 294 | { |
d685ce46 | 295 | const struct in_pdata *pdata = drv->pdata; |
090c1b1a | 296 | *count = KEY_CNT; |
d685ce46 PC |
297 | |
298 | if (pdata->key_names) | |
299 | return pdata->key_names; | |
090c1b1a | 300 | return in_evdev_keys; |
d92ea048 | 301 | } |
302 | ||
8e77275e | 303 | static void or_binds(const int *binds, int key, int *result) |
304 | { | |
305 | int t; | |
306 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) | |
307 | result[t] |= binds[IN_BIND_OFFS(key, t)]; | |
308 | } | |
309 | ||
310 | /* ORs result with binds of pressed buttons | |
311 | * XXX: should measure performance hit of this func, might need to optimize */ | |
9056e81f | 312 | static int in_evdev_update(void *drv_data, const int *binds, int *result) |
d92ea048 | 313 | { |
314 | struct input_event ev[16]; | |
86883f7f | 315 | struct input_absinfo ainfo; |
0d6fbb2c | 316 | int keybits_[KEY_CNT / sizeof(int)]; |
317 | int *keybits = keybits_; | |
86883f7f | 318 | in_evdev_t *dev = drv_data; |
e9b29264 | 319 | int rd, ret, u, lzone; |
d92ea048 | 320 | |
0d6fbb2c | 321 | if (dev->kbits == NULL) { |
782b026e | 322 | ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_); |
0d6fbb2c | 323 | if (ret == -1) { |
324 | perror("in_evdev: ioctl failed"); | |
325 | return -1; | |
d92ea048 | 326 | } |
2258f158 | 327 | } |
0d6fbb2c | 328 | else { |
329 | keybits = dev->kbits; | |
330 | while (1) { | |
331 | rd = read(dev->fd, ev, sizeof(ev)); | |
332 | if (rd < (int)sizeof(ev[0])) { | |
333 | if (errno != EAGAIN) | |
334 | perror("in_evdev: read failed"); | |
335 | break; | |
336 | } | |
337 | for (u = 0; u < rd / sizeof(ev[0]); u++) { | |
338 | if (ev[u].type != EV_KEY) | |
339 | continue; | |
340 | else if (ev[u].value == 1) | |
341 | KEYBITS_BIT_SET(ev[u].code); | |
342 | else if (ev[u].value == 0) | |
343 | KEYBITS_BIT_CLEAR(ev[u].code); | |
344 | } | |
345 | } | |
2258f158 | 346 | } |
d92ea048 | 347 | |
e9b29264 | 348 | for (u = dev->kc_first; u <= dev->kc_last; u++) { |
8e77275e | 349 | if (KEYBITS_BIT(u)) |
350 | or_binds(binds, u, result); | |
d92ea048 | 351 | } |
352 | ||
86883f7f | 353 | /* map X and Y absolute to UDLR */ |
e9b29264 | 354 | lzone = dev->abs_lzone; |
f342bede | 355 | if (dev->abs_to_digital && lzone != 0) { |
86883f7f | 356 | ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo); |
357 | if (ret != -1) { | |
e9b29264 | 358 | if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result); |
359 | if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result); | |
86883f7f | 360 | } |
86883f7f | 361 | ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo); |
362 | if (ret != -1) { | |
e9b29264 | 363 | if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result); |
364 | if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result); | |
86883f7f | 365 | } |
366 | } | |
367 | ||
8e77275e | 368 | return 0; |
d92ea048 | 369 | } |
370 | ||
f342bede | 371 | static int in_evdev_update_analog(void *drv_data, int axis_id, int *result) |
372 | { | |
373 | struct input_absinfo ainfo; | |
374 | in_evdev_t *dev = drv_data; | |
375 | int ret; | |
376 | ||
377 | if ((unsigned int)axis_id >= MAX_ABS_DEVS) | |
378 | return -1; | |
379 | ||
380 | ret = ioctl(dev->fd, EVIOCGABS(axis_id), &ainfo); | |
381 | if (ret != 0) | |
382 | return ret; | |
383 | ||
2f54e52c | 384 | *result = (ainfo.value + dev->abs_adj[axis_id]) * dev->abs_mult[axis_id]; |
385 | *result >>= 16; | |
f342bede | 386 | return 0; |
387 | } | |
388 | ||
e9b29264 | 389 | static int in_evdev_set_blocking(in_evdev_t *dev, int y) |
34581c95 | 390 | { |
34581c95 | 391 | long flags; |
595491c4 | 392 | int ret; |
34581c95 | 393 | |
86883f7f | 394 | flags = (long)fcntl(dev->fd, F_GETFL); |
595491c4 | 395 | if ((int)flags == -1) { |
396 | perror("in_evdev: F_GETFL fcntl failed"); | |
e9b29264 | 397 | return -1; |
34581c95 | 398 | } |
0c2e114e | 399 | |
400 | if (flags & O_NONBLOCK) { | |
401 | /* flush the event queue */ | |
402 | struct input_event ev; | |
403 | do { | |
404 | ret = read(dev->fd, &ev, sizeof(ev)); | |
405 | } | |
406 | while (ret == sizeof(ev)); | |
407 | } | |
408 | ||
595491c4 | 409 | if (y) |
410 | flags &= ~O_NONBLOCK; | |
411 | else | |
412 | flags |= O_NONBLOCK; | |
86883f7f | 413 | ret = fcntl(dev->fd, F_SETFL, flags); |
e9b29264 | 414 | if (ret == -1) { |
595491c4 | 415 | perror("in_evdev: F_SETFL fcntl failed"); |
e9b29264 | 416 | return -1; |
417 | } | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
f342bede | 422 | static int in_evdev_get_config(void *drv_data, int what, int *val) |
423 | { | |
424 | in_evdev_t *dev = drv_data; | |
425 | ||
426 | switch (what) { | |
427 | case IN_CFG_ABS_AXIS_COUNT: | |
428 | *val = dev->abs_count; | |
429 | break; | |
430 | default: | |
431 | return -1; | |
432 | } | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
e9b29264 | 437 | static int in_evdev_set_config(void *drv_data, int what, int val) |
438 | { | |
439 | in_evdev_t *dev = drv_data; | |
440 | int tmp; | |
441 | ||
442 | switch (what) { | |
443 | case IN_CFG_BLOCKING: | |
444 | return in_evdev_set_blocking(dev, val); | |
445 | case IN_CFG_ABS_DEAD_ZONE: | |
446 | if (val < 1 || val > 99 || dev->abs_lzone == 0) | |
447 | return -1; | |
448 | /* XXX: based on X axis only, for now.. */ | |
449 | tmp = (dev->abs_max_x - dev->abs_min_x) / 2; | |
450 | dev->abs_lzone = tmp - tmp * val / 100; | |
451 | if (dev->abs_lzone < 1) | |
452 | dev->abs_lzone = 1; | |
453 | else if (dev->abs_lzone >= tmp) | |
454 | dev->abs_lzone = tmp - 1; | |
455 | break; | |
456 | default: | |
457 | return -1; | |
458 | } | |
459 | ||
460 | return 0; | |
595491c4 | 461 | } |
462 | ||
7f022a8d | 463 | static int in_evdev_update_keycode(void *data, int *is_down) |
595491c4 | 464 | { |
e9b29264 | 465 | int ret_kc = -1, ret_down = 0; |
7f022a8d | 466 | in_evdev_t *dev = data; |
467 | struct input_event ev; | |
468 | int rd; | |
906bdc9f | 469 | |
e3068458 | 470 | /* do single event, the caller sometimes wants |
471 | * to do select() in blocking mode */ | |
472 | rd = read(dev->fd, &ev, sizeof(ev)); | |
473 | if (rd < (int) sizeof(ev)) { | |
474 | if (errno != EAGAIN) { | |
475 | perror("in_evdev: error reading"); | |
090c1b1a | 476 | //sleep(1); |
477 | ret_kc = -2; | |
74065be8 | 478 | } |
e3068458 | 479 | goto out; |
480 | } | |
e9b29264 | 481 | |
e3068458 | 482 | if (ev.type == EV_KEY) { |
483 | if (ev.value < 0 || ev.value > 1) | |
e9b29264 | 484 | goto out; |
e3068458 | 485 | ret_kc = ev.code; |
486 | ret_down = ev.value; | |
487 | goto out; | |
488 | } | |
f342bede | 489 | else if (ev.type == EV_ABS && dev->abs_to_digital) |
e3068458 | 490 | { |
491 | int lzone = dev->abs_lzone, down = 0, *last; | |
492 | ||
493 | // map absolute to up/down/left/right | |
494 | if (lzone != 0 && ev.code == ABS_X) { | |
495 | if (ev.value < dev->abs_min_x + lzone) | |
496 | down = KEY_LEFT; | |
497 | else if (ev.value > dev->abs_max_x - lzone) | |
498 | down = KEY_RIGHT; | |
499 | last = &dev->abs_lastx; | |
74065be8 | 500 | } |
e3068458 | 501 | else if (lzone != 0 && ev.code == ABS_Y) { |
502 | if (ev.value < dev->abs_min_y + lzone) | |
503 | down = KEY_UP; | |
504 | else if (ev.value > dev->abs_max_y - lzone) | |
505 | down = KEY_DOWN; | |
506 | last = &dev->abs_lasty; | |
507 | } | |
508 | else | |
509 | goto out; | |
510 | ||
511 | if (down == *last) | |
512 | goto out; | |
513 | ||
514 | if (down == 0 || *last != 0) { | |
515 | /* key up or direction change, return up event for old key */ | |
516 | ret_kc = *last; | |
517 | ret_down = 0; | |
518 | *last = 0; | |
e9b29264 | 519 | goto out; |
34581c95 | 520 | } |
e3068458 | 521 | ret_kc = *last = down; |
522 | ret_down = 1; | |
523 | goto out; | |
34581c95 | 524 | } |
7f022a8d | 525 | |
e9b29264 | 526 | out: |
527 | if (is_down != NULL) | |
528 | *is_down = ret_down; | |
529 | ||
530 | return ret_kc; | |
595491c4 | 531 | } |
34581c95 | 532 | |
dd1e7172 | 533 | static int in_evdev_menu_translate(void *drv_data, int keycode, char *charcode) |
595491c4 | 534 | { |
e9b29264 | 535 | in_evdev_t *dev = drv_data; |
c19e28f6 | 536 | const struct in_pdata *pdata = dev->drv->pdata; |
dd1e7172 | 537 | int ret = 0; |
82abf46f | 538 | int i; |
e9b29264 | 539 | |
82abf46f | 540 | if (keycode < 0) |
541 | { | |
542 | /* menu -> kc */ | |
543 | keycode = -keycode; | |
c19e28f6 PC |
544 | for (i = 0; i < pdata->kmap_size; i++) |
545 | if (pdata->key_map[i].pbtn == keycode) { | |
546 | int k = pdata->key_map[i].key; | |
e9b29264 | 547 | /* should really check EVIOCGBIT, but this is enough for now */ |
548 | if (dev->kc_first <= k && k <= dev->kc_last) | |
549 | return k; | |
550 | } | |
34581c95 | 551 | } |
82abf46f | 552 | else |
553 | { | |
c19e28f6 PC |
554 | for (i = 0; i < pdata->kmap_size; i++) { |
555 | if (pdata->key_map[i].key == keycode) { | |
556 | ret = pdata->key_map[i].pbtn; | |
dd1e7172 | 557 | break; |
558 | } | |
559 | } | |
560 | ||
561 | if (charcode != NULL && (unsigned int)keycode < KEY_CNT && | |
562 | in_evdev_keys[keycode] != NULL && in_evdev_keys[keycode][1] == 0) | |
563 | { | |
564 | char c = in_evdev_keys[keycode][0]; | |
565 | if ('A' <= c && c <= 'Z') | |
566 | c = 'a' + c - 'A'; | |
567 | ret |= PBTN_CHAR; | |
568 | *charcode = c; | |
569 | } | |
82abf46f | 570 | } |
571 | ||
dd1e7172 | 572 | return ret; |
595491c4 | 573 | } |
34581c95 | 574 | |
86883f7f | 575 | /* remove binds of missing keys, count remaining ones */ |
8e77275e | 576 | static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds) |
da767bd5 | 577 | { |
8e77275e | 578 | int keybits[KEY_CNT / sizeof(int)]; |
86883f7f | 579 | in_evdev_t *dev = drv_data; |
8e77275e | 580 | int i, t, ret, offs, count = 0; |
da767bd5 | 581 | |
bde5dcbb | 582 | memset(keybits, 0, sizeof(keybits)); |
86883f7f | 583 | ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits); |
da767bd5 | 584 | if (ret == -1) { |
585 | perror("in_evdev: ioctl failed"); | |
bde5dcbb | 586 | // memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */ |
da767bd5 | 587 | } |
588 | ||
f342bede | 589 | if (dev->abs_to_digital && dev->abs_lzone != 0) { |
86883f7f | 590 | KEYBITS_BIT_SET(KEY_LEFT); |
591 | KEYBITS_BIT_SET(KEY_RIGHT); | |
86883f7f | 592 | KEYBITS_BIT_SET(KEY_UP); |
593 | KEYBITS_BIT_SET(KEY_DOWN); | |
594 | } | |
595 | ||
8e77275e | 596 | for (i = 0; i < KEY_CNT; i++) { |
597 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) { | |
598 | offs = IN_BIND_OFFS(i, t); | |
599 | if (!KEYBITS_BIT(i)) | |
600 | binds[offs] = def_binds[offs] = 0; | |
601 | if (binds[offs]) | |
602 | count++; | |
603 | } | |
da767bd5 | 604 | } |
605 | ||
606 | return count; | |
607 | } | |
608 | ||
9056e81f | 609 | static const in_drv_t in_evdev_drv = { |
610 | .prefix = IN_EVDEV_PREFIX, | |
611 | .probe = in_evdev_probe, | |
612 | .free = in_evdev_free, | |
613 | .get_key_names = in_evdev_get_key_names, | |
9056e81f | 614 | .clean_binds = in_evdev_clean_binds, |
f342bede | 615 | .get_config = in_evdev_get_config, |
9056e81f | 616 | .set_config = in_evdev_set_config, |
617 | .update = in_evdev_update, | |
f342bede | 618 | .update_analog = in_evdev_update_analog, |
9056e81f | 619 | .update_keycode = in_evdev_update_keycode, |
620 | .menu_translate = in_evdev_menu_translate, | |
621 | }; | |
622 | ||
c19e28f6 | 623 | int in_evdev_init(const struct in_pdata *pdata) |
da767bd5 | 624 | { |
c19e28f6 PC |
625 | if (!pdata) { |
626 | fprintf(stderr, "in_sdl: Missing input platform data\n"); | |
627 | return -1; | |
628 | } | |
629 | ||
630 | in_register_driver(&in_evdev_drv, pdata->defbinds, pdata); | |
631 | return 0; | |
da767bd5 | 632 | } |
633 |