e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | /* Handle the event stream, converting console events into SDL events */ |
25 | |
26 | #include <sys/types.h> |
27 | #include <sys/time.h> |
28 | #include <sys/ioctl.h> |
29 | #include <unistd.h> |
30 | #include <fcntl.h> |
31 | #include <errno.h> |
32 | #include <limits.h> |
33 | |
34 | /* For parsing /proc */ |
35 | #include <dirent.h> |
36 | #include <ctype.h> |
37 | |
38 | #include <linux/vt.h> |
39 | #include <linux/kd.h> |
40 | #include <linux/keyboard.h> |
41 | |
42 | #include "SDL_mutex.h" |
43 | #include "../SDL_sysvideo.h" |
44 | #include "../../events/SDL_sysevents.h" |
45 | #include "../../events/SDL_events_c.h" |
46 | #include "SDL_gsvideo.h" |
47 | #include "SDL_gsevents_c.h" |
48 | #include "SDL_gskeys.h" |
49 | |
50 | #ifndef GPM_NODE_FIFO |
51 | #define GPM_NODE_FIFO "/dev/gpmdata" |
52 | #endif |
53 | |
54 | /* The translation tables from a console scancode to a SDL keysym */ |
55 | #define NUM_VGAKEYMAPS (1<<KG_CAPSSHIFT) |
56 | static Uint16 vga_keymap[NUM_VGAKEYMAPS][NR_KEYS]; |
57 | static SDLKey keymap[128]; |
58 | static Uint16 keymap_temp[128]; /* only used at startup */ |
59 | static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym); |
60 | |
61 | /* Ugh, we have to duplicate the kernel's keysym mapping code... |
62 | Oh, it's not so bad. :-) |
63 | |
64 | FIXME: Add keyboard LED handling code |
65 | */ |
66 | static void GS_vgainitkeymaps(int fd) |
67 | { |
68 | struct kbentry entry; |
69 | int map, i; |
70 | |
71 | /* Don't do anything if we are passed a closed keyboard */ |
72 | if ( fd < 0 ) { |
73 | return; |
74 | } |
75 | |
76 | /* Load all the keysym mappings */ |
77 | for ( map=0; map<NUM_VGAKEYMAPS; ++map ) { |
78 | SDL_memset(vga_keymap[map], 0, NR_KEYS*sizeof(Uint16)); |
79 | for ( i=0; i<NR_KEYS; ++i ) { |
80 | entry.kb_table = map; |
81 | entry.kb_index = i; |
82 | if ( ioctl(fd, KDGKBENT, &entry) == 0 ) { |
83 | /* fill keytemp. This replaces SDL_fbkeys.h */ |
84 | if ( (map == 0) && (i<128) ) { |
85 | keymap_temp[i] = entry.kb_value; |
86 | } |
87 | /* The "Enter" key is a special case */ |
88 | if ( entry.kb_value == K_ENTER ) { |
89 | entry.kb_value = K(KT_ASCII,13); |
90 | } |
91 | /* Handle numpad specially as well */ |
92 | if ( KTYP(entry.kb_value) == KT_PAD ) { |
93 | switch ( entry.kb_value ) { |
94 | case K_P0: |
95 | case K_P1: |
96 | case K_P2: |
97 | case K_P3: |
98 | case K_P4: |
99 | case K_P5: |
100 | case K_P6: |
101 | case K_P7: |
102 | case K_P8: |
103 | case K_P9: |
104 | vga_keymap[map][i]=entry.kb_value; |
105 | vga_keymap[map][i]+= '0'; |
106 | break; |
107 | case K_PPLUS: |
108 | vga_keymap[map][i]=K(KT_ASCII,'+'); |
109 | break; |
110 | case K_PMINUS: |
111 | vga_keymap[map][i]=K(KT_ASCII,'-'); |
112 | break; |
113 | case K_PSTAR: |
114 | vga_keymap[map][i]=K(KT_ASCII,'*'); |
115 | break; |
116 | case K_PSLASH: |
117 | vga_keymap[map][i]=K(KT_ASCII,'/'); |
118 | break; |
119 | case K_PENTER: |
120 | vga_keymap[map][i]=K(KT_ASCII,'\r'); |
121 | break; |
122 | case K_PCOMMA: |
123 | vga_keymap[map][i]=K(KT_ASCII,','); |
124 | break; |
125 | case K_PDOT: |
126 | vga_keymap[map][i]=K(KT_ASCII,'.'); |
127 | break; |
128 | default: |
129 | break; |
130 | } |
131 | } |
132 | /* Do the normal key translation */ |
133 | if ( (KTYP(entry.kb_value) == KT_LATIN) || |
134 | (KTYP(entry.kb_value) == KT_ASCII) || |
135 | (KTYP(entry.kb_value) == KT_LETTER) ) { |
136 | vga_keymap[map][i] = entry.kb_value; |
137 | } |
138 | } |
139 | } |
140 | } |
141 | } |
142 | |
143 | int GS_InGraphicsMode(_THIS) |
144 | { |
145 | return((keyboard_fd >= 0) && (saved_kbd_mode >= 0)); |
146 | } |
147 | |
148 | int GS_EnterGraphicsMode(_THIS) |
149 | { |
150 | struct termios keyboard_termios; |
151 | |
152 | /* Set medium-raw keyboard mode */ |
153 | if ( (keyboard_fd >= 0) && !GS_InGraphicsMode(this) ) { |
154 | |
155 | /* Switch to the correct virtual terminal */ |
156 | if ( current_vt > 0 ) { |
157 | struct vt_stat vtstate; |
158 | |
159 | if ( ioctl(keyboard_fd, VT_GETSTATE, &vtstate) == 0 ) { |
160 | saved_vt = vtstate.v_active; |
161 | } |
162 | if ( ioctl(keyboard_fd, VT_ACTIVATE, current_vt) == 0 ) { |
163 | ioctl(keyboard_fd, VT_WAITACTIVE, current_vt); |
164 | } |
165 | } |
166 | |
167 | /* Set the terminal input mode */ |
168 | if ( tcgetattr(keyboard_fd, &saved_kbd_termios) < 0 ) { |
169 | SDL_SetError("Unable to get terminal attributes"); |
170 | if ( keyboard_fd > 0 ) { |
171 | close(keyboard_fd); |
172 | } |
173 | keyboard_fd = -1; |
174 | return(-1); |
175 | } |
176 | if ( ioctl(keyboard_fd, KDGKBMODE, &saved_kbd_mode) < 0 ) { |
177 | SDL_SetError("Unable to get current keyboard mode"); |
178 | if ( keyboard_fd > 0 ) { |
179 | close(keyboard_fd); |
180 | } |
181 | keyboard_fd = -1; |
182 | return(-1); |
183 | } |
184 | keyboard_termios = saved_kbd_termios; |
185 | keyboard_termios.c_lflag &= ~(ICANON | ECHO | ISIG); |
186 | keyboard_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON); |
187 | keyboard_termios.c_cc[VMIN] = 0; |
188 | keyboard_termios.c_cc[VTIME] = 0; |
189 | if (tcsetattr(keyboard_fd, TCSAFLUSH, &keyboard_termios) < 0) { |
190 | GS_CloseKeyboard(this); |
191 | SDL_SetError("Unable to set terminal attributes"); |
192 | return(-1); |
193 | } |
194 | /* This will fail if we aren't root or this isn't our tty */ |
195 | if ( ioctl(keyboard_fd, KDSKBMODE, K_MEDIUMRAW) < 0 ) { |
196 | GS_CloseKeyboard(this); |
197 | SDL_SetError("Unable to set keyboard in raw mode"); |
198 | return(-1); |
199 | } |
200 | if ( ioctl(keyboard_fd, KDSETMODE, KD_GRAPHICS) < 0 ) { |
201 | GS_CloseKeyboard(this); |
202 | SDL_SetError("Unable to set keyboard in graphics mode"); |
203 | return(-1); |
204 | } |
205 | } |
206 | return(keyboard_fd); |
207 | } |
208 | |
209 | void GS_LeaveGraphicsMode(_THIS) |
210 | { |
211 | if ( GS_InGraphicsMode(this) ) { |
212 | ioctl(keyboard_fd, KDSETMODE, KD_TEXT); |
213 | ioctl(keyboard_fd, KDSKBMODE, saved_kbd_mode); |
214 | tcsetattr(keyboard_fd, TCSAFLUSH, &saved_kbd_termios); |
215 | saved_kbd_mode = -1; |
216 | |
217 | /* Head back over to the original virtual terminal */ |
218 | if ( saved_vt > 0 ) { |
219 | ioctl(keyboard_fd, VT_ACTIVATE, saved_vt); |
220 | } |
221 | } |
222 | } |
223 | |
224 | void GS_CloseKeyboard(_THIS) |
225 | { |
226 | if ( keyboard_fd >= 0 ) { |
227 | GS_LeaveGraphicsMode(this); |
228 | if ( keyboard_fd > 0 ) { |
229 | close(keyboard_fd); |
230 | } |
231 | } |
232 | keyboard_fd = -1; |
233 | } |
234 | |
235 | int GS_OpenKeyboard(_THIS) |
236 | { |
237 | /* Open only if not already opened */ |
238 | if ( keyboard_fd < 0 ) { |
239 | char *tty0[] = { "/dev/tty0", "/dev/vc/0", NULL }; |
240 | char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL }; |
241 | int i, tty0_fd; |
242 | |
243 | /* Try to query for a free virtual terminal */ |
244 | tty0_fd = -1; |
245 | for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) { |
246 | tty0_fd = open(tty0[i], O_WRONLY, 0); |
247 | } |
248 | if ( tty0_fd < 0 ) { |
249 | tty0_fd = dup(0); /* Maybe stdin is a VT? */ |
250 | } |
251 | ioctl(tty0_fd, VT_OPENQRY, ¤t_vt); |
252 | close(tty0_fd); |
253 | if ( (geteuid() == 0) && (current_vt > 0) ) { |
254 | for ( i=0; vcs[i] && (keyboard_fd < 0); ++i ) { |
255 | char vtpath[12]; |
256 | |
257 | SDL_snprintf(vtpath, SDL_arraysize(vtpath), vcs[i], current_vt); |
258 | keyboard_fd = open(vtpath, O_RDWR, 0); |
259 | #ifdef DEBUG_KEYBOARD |
260 | fprintf(stderr, "vtpath = %s, fd = %d\n", |
261 | vtpath, keyboard_fd); |
262 | #endif /* DEBUG_KEYBOARD */ |
263 | |
264 | /* This needs to be our controlling tty |
265 | so that the kernel ioctl() calls work |
266 | */ |
267 | if ( keyboard_fd >= 0 ) { |
268 | tty0_fd = open("/dev/tty", O_RDWR, 0); |
269 | if ( tty0_fd >= 0 ) { |
270 | ioctl(tty0_fd, TIOCNOTTY, 0); |
271 | close(tty0_fd); |
272 | } |
273 | } |
274 | } |
275 | } |
276 | if ( keyboard_fd < 0 ) { |
277 | /* Last resort, maybe our tty is a usable VT */ |
278 | current_vt = 0; |
279 | keyboard_fd = open("/dev/tty", O_RDWR); |
280 | } |
281 | #ifdef DEBUG_KEYBOARD |
282 | fprintf(stderr, "Current VT: %d\n", current_vt); |
283 | #endif |
284 | saved_kbd_mode = -1; |
285 | |
286 | /* Make sure that our input is a console terminal */ |
287 | { int dummy; |
288 | if ( ioctl(keyboard_fd, KDGKBMODE, &dummy) < 0 ) { |
289 | close(keyboard_fd); |
290 | keyboard_fd = -1; |
291 | SDL_SetError("Unable to open a console terminal"); |
292 | } |
293 | } |
294 | |
295 | /* Set up keymap */ |
296 | GS_vgainitkeymaps(keyboard_fd); |
297 | } |
298 | return(keyboard_fd); |
299 | } |
300 | |
301 | static enum { |
302 | MOUSE_NONE = -1, |
303 | MOUSE_GPM, /* Note: GPM uses the MSC protocol */ |
304 | MOUSE_PS2, |
305 | MOUSE_IMPS2, |
306 | MOUSE_MS, |
307 | MOUSE_BM, |
308 | NUM_MOUSE_DRVS |
309 | } mouse_drv = MOUSE_NONE; |
310 | |
311 | void GS_CloseMouse(_THIS) |
312 | { |
313 | if ( mouse_fd > 0 ) { |
314 | close(mouse_fd); |
315 | } |
316 | mouse_fd = -1; |
317 | } |
318 | |
319 | /* Returns processes listed in /proc with the desired name */ |
320 | static int find_pid(DIR *proc, const char *wanted_name) |
321 | { |
322 | struct dirent *entry; |
323 | int pid; |
324 | |
325 | /* First scan proc for the gpm process */ |
326 | pid = 0; |
327 | while ( (pid == 0) && ((entry=readdir(proc)) != NULL) ) { |
328 | if ( isdigit(entry->d_name[0]) ) { |
329 | FILE *status; |
330 | char path[PATH_MAX]; |
331 | char name[PATH_MAX]; |
332 | |
333 | SDL_snprintf(path, SDL_arraysize(path), "/proc/%s/status", entry->d_name); |
334 | status=fopen(path, "r"); |
335 | if ( status ) { |
336 | name[0] = '\0'; |
337 | fscanf(status, "Name: %s", name); |
338 | if ( SDL_strcmp(name, wanted_name) == 0 ) { |
339 | pid = atoi(entry->d_name); |
340 | } |
341 | fclose(status); |
342 | } |
343 | } |
344 | } |
345 | return pid; |
346 | } |
347 | |
348 | /* Returns true if /dev/gpmdata is being written to by gpm */ |
349 | static int gpm_available(void) |
350 | { |
351 | int available; |
352 | DIR *proc; |
353 | int pid; |
354 | int cmdline, len, arglen; |
355 | char path[PATH_MAX]; |
356 | char args[PATH_MAX], *arg; |
357 | |
358 | /* Don't bother looking if the fifo isn't there */ |
359 | if ( access(GPM_NODE_FIFO, F_OK) < 0 ) { |
360 | return(0); |
361 | } |
362 | |
363 | available = 0; |
364 | proc = opendir("/proc"); |
365 | if ( proc ) { |
366 | while ( (pid=find_pid(proc, "gpm")) > 0 ) { |
367 | SDL_snprintf(path, SDL_arraysize(path), "/proc/%d/cmdline", pid); |
368 | cmdline = open(path, O_RDONLY, 0); |
369 | if ( cmdline >= 0 ) { |
370 | len = read(cmdline, args, sizeof(args)); |
371 | arg = args; |
372 | while ( len > 0 ) { |
373 | if ( SDL_strcmp(arg, "-R") == 0 ) { |
374 | available = 1; |
375 | } |
376 | arglen = SDL_strlen(arg)+1; |
377 | len -= arglen; |
378 | arg += arglen; |
379 | } |
380 | close(cmdline); |
381 | } |
382 | } |
383 | closedir(proc); |
384 | } |
385 | return available; |
386 | } |
387 | |
388 | |
389 | /* rcg06112001 Set up IMPS/2 mode, if possible. This gives |
390 | * us access to the mousewheel, etc. Returns zero if |
391 | * writes to device failed, but you still need to query the |
392 | * device to see which mode it's actually in. |
393 | */ |
394 | static int set_imps2_mode(int fd) |
395 | { |
396 | /* If you wanted to control the mouse mode (and we do :) ) ... |
397 | Set IMPS/2 protocol: |
398 | {0xf3,200,0xf3,100,0xf3,80} |
399 | Reset mouse device: |
400 | {0xFF} |
401 | */ |
402 | Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80}; |
403 | Uint8 reset = 0xff; |
404 | fd_set fdset; |
405 | struct timeval tv; |
406 | int retval = 0; |
407 | |
408 | if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) { |
409 | if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) { |
410 | retval = 1; |
411 | } |
412 | } |
413 | |
414 | /* Get rid of any chatter from the above */ |
415 | FD_ZERO(&fdset); |
416 | FD_SET(fd, &fdset); |
417 | tv.tv_sec = 0; |
418 | tv.tv_usec = 0; |
419 | while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) { |
420 | char temp[32]; |
421 | read(fd, temp, sizeof(temp)); |
422 | } |
423 | |
424 | return retval; |
425 | } |
426 | |
427 | |
428 | /* Returns true if the mouse uses the IMPS/2 protocol */ |
429 | static int detect_imps2(int fd) |
430 | { |
431 | int imps2; |
432 | |
433 | imps2 = 0; |
434 | |
435 | if ( SDL_getenv("SDL_MOUSEDEV_IMPS2") ) { |
436 | imps2 = 1; |
437 | } |
438 | if ( ! imps2 ) { |
439 | Uint8 query_ps2 = 0xF2; |
440 | fd_set fdset; |
441 | struct timeval tv; |
442 | |
443 | /* Get rid of any mouse motion noise */ |
444 | FD_ZERO(&fdset); |
445 | FD_SET(fd, &fdset); |
446 | tv.tv_sec = 0; |
447 | tv.tv_usec = 0; |
448 | while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) { |
449 | char temp[32]; |
450 | read(fd, temp, sizeof(temp)); |
451 | } |
452 | |
453 | /* Query for the type of mouse protocol */ |
454 | if ( write(fd, &query_ps2, sizeof (query_ps2)) == sizeof (query_ps2)) { |
455 | Uint8 ch = 0; |
456 | |
457 | /* Get the mouse protocol response */ |
458 | do { |
459 | FD_ZERO(&fdset); |
460 | FD_SET(fd, &fdset); |
461 | tv.tv_sec = 1; |
462 | tv.tv_usec = 0; |
463 | if ( select(fd+1, &fdset, 0, 0, &tv) < 1 ) { |
464 | break; |
465 | } |
466 | } while ( (read(fd, &ch, sizeof (ch)) == sizeof (ch)) && |
467 | ((ch == 0xFA) || (ch == 0xAA)) ); |
468 | |
469 | /* Experimental values (Logitech wheelmouse) */ |
470 | #ifdef DEBUG_MOUSE |
471 | fprintf(stderr, "Last mouse mode: 0x%x\n", ch); |
472 | #endif |
473 | if ( ch == 3 ) { |
474 | imps2 = 1; |
475 | } |
476 | } |
477 | } |
478 | return imps2; |
479 | } |
480 | |
481 | int GS_OpenMouse(_THIS) |
482 | { |
483 | int i; |
484 | const char *mousedev; |
485 | const char *mousedrv; |
486 | |
487 | mousedrv = SDL_getenv("SDL_MOUSEDRV"); |
488 | mousedev = SDL_getenv("SDL_MOUSEDEV"); |
489 | mouse_fd = -1; |
490 | |
491 | /* STD MICE */ |
492 | |
493 | if ( mousedev == NULL ) { |
494 | /* FIXME someday... allow multiple mice in this driver */ |
495 | char *ps2mice[] = { |
496 | "/dev/input/mice", "/dev/usbmouse", "/dev/psaux", NULL |
497 | }; |
498 | /* First try to use GPM in repeater mode */ |
499 | if ( mouse_fd < 0 ) { |
500 | if ( gpm_available() ) { |
501 | mouse_fd = open(GPM_NODE_FIFO, O_RDONLY, 0); |
502 | if ( mouse_fd >= 0 ) { |
503 | #ifdef DEBUG_MOUSE |
504 | fprintf(stderr, "Using GPM mouse\n"); |
505 | #endif |
506 | mouse_drv = MOUSE_GPM; |
507 | } |
508 | } |
509 | } |
510 | /* Now try to use a modern PS/2 mouse */ |
511 | for ( i=0; (mouse_fd < 0) && ps2mice[i]; ++i ) { |
512 | mouse_fd = open(ps2mice[i], O_RDWR, 0); |
513 | if (mouse_fd < 0) { |
514 | mouse_fd = open(ps2mice[i], O_RDONLY, 0); |
515 | } |
516 | if (mouse_fd >= 0) { |
517 | /* rcg06112001 Attempt to set IMPS/2 mode */ |
518 | if ( i == 0 ) { |
519 | set_imps2_mode(mouse_fd); |
520 | } |
521 | if (detect_imps2(mouse_fd)) { |
522 | #ifdef DEBUG_MOUSE |
523 | fprintf(stderr, "Using IMPS2 mouse\n"); |
524 | #endif |
525 | mouse_drv = MOUSE_IMPS2; |
526 | } else { |
527 | mouse_drv = MOUSE_PS2; |
528 | #ifdef DEBUG_MOUSE |
529 | fprintf(stderr, "Using PS2 mouse\n"); |
530 | #endif |
531 | } |
532 | } |
533 | } |
534 | /* Next try to use a PPC ADB port mouse */ |
535 | if ( mouse_fd < 0 ) { |
536 | mouse_fd = open("/dev/adbmouse", O_RDONLY, 0); |
537 | if ( mouse_fd >= 0 ) { |
538 | #ifdef DEBUG_MOUSE |
539 | fprintf(stderr, "Using ADB mouse\n"); |
540 | #endif |
541 | mouse_drv = MOUSE_BM; |
542 | } |
543 | } |
544 | } |
545 | /* Default to a serial Microsoft mouse */ |
546 | if ( mouse_fd < 0 ) { |
547 | if ( mousedev == NULL ) { |
548 | mousedev = "/dev/mouse"; |
549 | } |
550 | mouse_fd = open(mousedev, O_RDONLY, 0); |
551 | if ( mouse_fd >= 0 ) { |
552 | struct termios mouse_termios; |
553 | |
554 | /* Set the sampling speed to 1200 baud */ |
555 | tcgetattr(mouse_fd, &mouse_termios); |
556 | mouse_termios.c_iflag = IGNBRK | IGNPAR; |
557 | mouse_termios.c_oflag = 0; |
558 | mouse_termios.c_lflag = 0; |
559 | mouse_termios.c_line = 0; |
560 | mouse_termios.c_cc[VTIME] = 0; |
561 | mouse_termios.c_cc[VMIN] = 1; |
562 | mouse_termios.c_cflag = CREAD | CLOCAL | HUPCL; |
563 | mouse_termios.c_cflag |= CS8; |
564 | mouse_termios.c_cflag |= B1200; |
565 | tcsetattr(mouse_fd, TCSAFLUSH, &mouse_termios); |
566 | #ifdef DEBUG_MOUSE |
567 | fprintf(stderr, "Using Microsoft mouse on %s\n", mousedev); |
568 | #endif |
569 | mouse_drv = MOUSE_MS; |
570 | } |
571 | } |
572 | if ( mouse_fd < 0 ) { |
573 | mouse_drv = MOUSE_NONE; |
574 | } |
575 | return(mouse_fd); |
576 | } |
577 | |
578 | static int posted = 0; |
579 | |
580 | void GS_vgamousecallback(int button, int dx, int dy) |
581 | { |
582 | int button_1, button_3; |
583 | int button_state; |
584 | int state_changed; |
585 | int i; |
586 | Uint8 state; |
587 | |
588 | if ( dx || dy ) { |
589 | posted += SDL_PrivateMouseMotion(0, 1, dx, dy); |
590 | } |
591 | |
592 | /* Swap button 1 and 3 */ |
593 | button_1 = (button & 0x04) >> 2; |
594 | button_3 = (button & 0x01) << 2; |
595 | button &= ~0x05; |
596 | button |= (button_1|button_3); |
597 | |
598 | /* See what changed */ |
599 | button_state = SDL_GetMouseState(NULL, NULL); |
600 | state_changed = button_state ^ button; |
601 | for ( i=0; i<8; ++i ) { |
602 | if ( state_changed & (1<<i) ) { |
603 | if ( button & (1<<i) ) { |
604 | state = SDL_PRESSED; |
605 | } else { |
606 | state = SDL_RELEASED; |
607 | } |
608 | posted += SDL_PrivateMouseButton(state, i+1, 0, 0); |
609 | } |
610 | } |
611 | } |
612 | |
613 | /* For now, use GPM, PS/2, and MS protocols |
614 | Driver adapted from the SVGAlib mouse driver code (taken from gpm, etc.) |
615 | */ |
616 | static void handle_mouse(_THIS) |
617 | { |
618 | static int start = 0; |
619 | static unsigned char mousebuf[BUFSIZ]; |
620 | int i, nread; |
621 | int button = 0; |
622 | int dx = 0, dy = 0; |
623 | int packetsize = 0; |
624 | |
625 | /* Figure out the mouse packet size */ |
626 | switch (mouse_drv) { |
627 | case MOUSE_NONE: |
628 | /* Ack! */ |
629 | read(mouse_fd, mousebuf, BUFSIZ); |
630 | return; |
631 | case MOUSE_GPM: |
632 | packetsize = 5; |
633 | break; |
634 | case MOUSE_IMPS2: |
635 | packetsize = 4; |
636 | break; |
637 | case MOUSE_PS2: |
638 | case MOUSE_MS: |
639 | case MOUSE_BM: |
640 | packetsize = 3; |
641 | break; |
642 | case NUM_MOUSE_DRVS: |
643 | /* Uh oh.. */ |
644 | packetsize = 0; |
645 | break; |
646 | } |
647 | |
648 | /* Read as many packets as possible */ |
649 | nread = read(mouse_fd, &mousebuf[start], BUFSIZ-start); |
650 | if ( nread < 0 ) { |
651 | return; |
652 | } |
653 | nread += start; |
654 | #ifdef DEBUG_MOUSE |
655 | fprintf(stderr, "Read %d bytes from mouse, start = %d\n", nread, start); |
656 | #endif |
657 | for ( i=0; i<(nread-(packetsize-1)); i += packetsize ) { |
658 | switch (mouse_drv) { |
659 | case MOUSE_NONE: |
660 | break; |
661 | case MOUSE_GPM: |
662 | /* GPM protocol has 0x80 in high byte */ |
663 | if ( (mousebuf[i] & 0xF8) != 0x80 ) { |
664 | /* Go to next byte */ |
665 | i -= (packetsize-1); |
666 | continue; |
667 | } |
668 | /* Get current mouse state */ |
669 | button = (~mousebuf[i]) & 0x07; |
670 | dx = (signed char)(mousebuf[i+1]) + |
671 | (signed char)(mousebuf[i+3]); |
672 | dy = -((signed char)(mousebuf[i+2]) + |
673 | (signed char)(mousebuf[i+4])); |
674 | break; |
675 | case MOUSE_PS2: |
676 | /* PS/2 protocol has nothing in high byte */ |
677 | if ( (mousebuf[i] & 0xC0) != 0 ) { |
678 | /* Go to next byte */ |
679 | i -= (packetsize-1); |
680 | continue; |
681 | } |
682 | /* Get current mouse state */ |
683 | button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/ |
684 | (mousebuf[i] & 0x02) >> 1 | /*Right*/ |
685 | (mousebuf[i] & 0x01) << 2; /*Left*/ |
686 | dx = (mousebuf[i] & 0x10) ? |
687 | mousebuf[i+1] - 256 : mousebuf[i+1]; |
688 | dy = (mousebuf[i] & 0x20) ? |
689 | -(mousebuf[i+2] - 256) : -mousebuf[i+2]; |
690 | break; |
691 | case MOUSE_IMPS2: |
692 | /* Get current mouse state */ |
693 | button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/ |
694 | (mousebuf[i] & 0x02) >> 1 | /*Right*/ |
695 | (mousebuf[i] & 0x01) << 2 | /*Left*/ |
696 | (mousebuf[i] & 0x40) >> 3 | /* 4 */ |
697 | (mousebuf[i] & 0x80) >> 3; /* 5 */ |
698 | dx = (mousebuf[i] & 0x10) ? |
699 | mousebuf[i+1] - 256 : mousebuf[i+1]; |
700 | dy = (mousebuf[i] & 0x20) ? |
701 | -(mousebuf[i+2] - 256) : -mousebuf[i+2]; |
702 | switch (mousebuf[i+3]&0x0F) { |
703 | case 0x0E: /* DX = +1 */ |
704 | case 0x02: /* DX = -1 */ |
705 | break; |
706 | case 0x0F: /* DY = +1 (map button 4) */ |
707 | FB_vgamousecallback(button | (1<<3), |
708 | 1, 0, 0); |
709 | break; |
710 | case 0x01: /* DY = -1 (map button 5) */ |
711 | FB_vgamousecallback(button | (1<<4), |
712 | 1, 0, 0); |
713 | break; |
714 | } |
715 | break; |
716 | case MOUSE_MS: |
717 | /* Microsoft protocol has 0x40 in high byte */ |
718 | if ( (mousebuf[i] & 0x40) != 0x40 ) { |
719 | /* Go to next byte */ |
720 | i -= (packetsize-1); |
721 | continue; |
722 | } |
723 | /* Get current mouse state */ |
724 | button = ((mousebuf[i] & 0x20) >> 3) | |
725 | ((mousebuf[i] & 0x10) >> 4); |
726 | dx = (signed char)(((mousebuf[i] & 0x03) << 6) | |
727 | (mousebuf[i + 1] & 0x3F)); |
728 | dy = (signed char)(((mousebuf[i] & 0x0C) << 4) | |
729 | (mousebuf[i + 2] & 0x3F)); |
730 | break; |
731 | case MOUSE_BM: |
732 | /* BusMouse protocol has 0xF8 in high byte */ |
733 | if ( (mousebuf[i] & 0xF8) != 0x80 ) { |
734 | /* Go to next byte */ |
735 | i -= (packetsize-1); |
736 | continue; |
737 | } |
738 | /* Get current mouse state */ |
739 | button = (~mousebuf[i]) & 0x07; |
740 | dx = (signed char)mousebuf[i+1]; |
741 | dy = -(signed char)mousebuf[i+2]; |
742 | break; |
743 | case NUM_MOUSE_DRVS: |
744 | /* Uh oh.. */ |
745 | dx = 0; |
746 | dy = 0; |
747 | break; |
748 | } |
749 | GS_vgamousecallback(button, dx, dy); |
750 | } |
751 | if ( i < nread ) { |
752 | SDL_memcpy(mousebuf, &mousebuf[i], (nread-i)); |
753 | start = (nread-i); |
754 | } else { |
755 | start = 0; |
756 | } |
757 | return; |
758 | } |
759 | |
760 | static void handle_keyboard(_THIS) |
761 | { |
762 | unsigned char keybuf[BUFSIZ]; |
763 | int i, nread; |
764 | int pressed; |
765 | int scancode; |
766 | SDL_keysym keysym; |
767 | |
768 | nread = read(keyboard_fd, keybuf, BUFSIZ); |
769 | for ( i=0; i<nread; ++i ) { |
770 | scancode = keybuf[i] & 0x7F; |
771 | if ( keybuf[i] & 0x80 ) { |
772 | pressed = SDL_RELEASED; |
773 | } else { |
774 | pressed = SDL_PRESSED; |
775 | } |
776 | TranslateKey(scancode, &keysym); |
777 | posted += SDL_PrivateKeyboard(pressed, &keysym); |
778 | } |
779 | } |
780 | |
781 | void GS_PumpEvents(_THIS) |
782 | { |
783 | fd_set fdset; |
784 | int max_fd; |
785 | static struct timeval zero; |
786 | |
787 | do { |
788 | posted = 0; |
789 | |
790 | FD_ZERO(&fdset); |
791 | max_fd = 0; |
792 | if ( keyboard_fd >= 0 ) { |
793 | FD_SET(keyboard_fd, &fdset); |
794 | if ( max_fd < keyboard_fd ) { |
795 | max_fd = keyboard_fd; |
796 | } |
797 | } |
798 | if ( mouse_fd >= 0 ) { |
799 | FD_SET(mouse_fd, &fdset); |
800 | if ( max_fd < mouse_fd ) { |
801 | max_fd = mouse_fd; |
802 | } |
803 | } |
804 | if ( select(max_fd+1, &fdset, NULL, NULL, &zero) > 0 ) { |
805 | if ( keyboard_fd >= 0 ) { |
806 | if ( FD_ISSET(keyboard_fd, &fdset) ) { |
807 | handle_keyboard(this); |
808 | } |
809 | } |
810 | if ( mouse_fd >= 0 ) { |
811 | if ( FD_ISSET(mouse_fd, &fdset) ) { |
812 | handle_mouse(this); |
813 | } |
814 | } |
815 | } |
816 | } while ( posted ); |
817 | } |
818 | |
819 | void GS_InitOSKeymap(_THIS) |
820 | { |
821 | int i; |
822 | |
823 | /* Initialize the Linux key translation table */ |
824 | |
825 | /* First get the ascii keys and others not well handled */ |
826 | for (i=0; i<SDL_arraysize(keymap); ++i) { |
827 | switch(i) { |
828 | /* These aren't handled by the x86 kernel keymapping (?) */ |
829 | case SCANCODE_PRINTSCREEN: |
830 | keymap[i] = SDLK_PRINT; |
831 | break; |
832 | case SCANCODE_BREAK: |
833 | keymap[i] = SDLK_BREAK; |
834 | break; |
835 | case SCANCODE_BREAK_ALTERNATIVE: |
836 | keymap[i] = SDLK_PAUSE; |
837 | break; |
838 | case SCANCODE_LEFTSHIFT: |
839 | keymap[i] = SDLK_LSHIFT; |
840 | break; |
841 | case SCANCODE_RIGHTSHIFT: |
842 | keymap[i] = SDLK_RSHIFT; |
843 | break; |
844 | case SCANCODE_LEFTCONTROL: |
845 | keymap[i] = SDLK_LCTRL; |
846 | break; |
847 | case SCANCODE_RIGHTCONTROL: |
848 | keymap[i] = SDLK_RCTRL; |
849 | break; |
850 | case SCANCODE_RIGHTWIN: |
851 | keymap[i] = SDLK_RSUPER; |
852 | break; |
853 | case SCANCODE_LEFTWIN: |
854 | keymap[i] = SDLK_LSUPER; |
855 | break; |
856 | case 127: |
857 | keymap[i] = SDLK_MENU; |
858 | break; |
859 | /* this should take care of all standard ascii keys */ |
860 | default: |
861 | keymap[i] = KVAL(vga_keymap[0][i]); |
862 | break; |
863 | } |
864 | } |
865 | for (i=0; i<SDL_arraysize(keymap); ++i) { |
866 | switch(keymap_temp[i]) { |
867 | case K_F1: keymap[i] = SDLK_F1; break; |
868 | case K_F2: keymap[i] = SDLK_F2; break; |
869 | case K_F3: keymap[i] = SDLK_F3; break; |
870 | case K_F4: keymap[i] = SDLK_F4; break; |
871 | case K_F5: keymap[i] = SDLK_F5; break; |
872 | case K_F6: keymap[i] = SDLK_F6; break; |
873 | case K_F7: keymap[i] = SDLK_F7; break; |
874 | case K_F8: keymap[i] = SDLK_F8; break; |
875 | case K_F9: keymap[i] = SDLK_F9; break; |
876 | case K_F10: keymap[i] = SDLK_F10; break; |
877 | case K_F11: keymap[i] = SDLK_F11; break; |
878 | case K_F12: keymap[i] = SDLK_F12; break; |
879 | |
880 | case K_DOWN: keymap[i] = SDLK_DOWN; break; |
881 | case K_LEFT: keymap[i] = SDLK_LEFT; break; |
882 | case K_RIGHT: keymap[i] = SDLK_RIGHT; break; |
883 | case K_UP: keymap[i] = SDLK_UP; break; |
884 | |
885 | case K_P0: keymap[i] = SDLK_KP0; break; |
886 | case K_P1: keymap[i] = SDLK_KP1; break; |
887 | case K_P2: keymap[i] = SDLK_KP2; break; |
888 | case K_P3: keymap[i] = SDLK_KP3; break; |
889 | case K_P4: keymap[i] = SDLK_KP4; break; |
890 | case K_P5: keymap[i] = SDLK_KP5; break; |
891 | case K_P6: keymap[i] = SDLK_KP6; break; |
892 | case K_P7: keymap[i] = SDLK_KP7; break; |
893 | case K_P8: keymap[i] = SDLK_KP8; break; |
894 | case K_P9: keymap[i] = SDLK_KP9; break; |
895 | case K_PPLUS: keymap[i] = SDLK_KP_PLUS; break; |
896 | case K_PMINUS: keymap[i] = SDLK_KP_MINUS; break; |
897 | case K_PSTAR: keymap[i] = SDLK_KP_MULTIPLY; break; |
898 | case K_PSLASH: keymap[i] = SDLK_KP_DIVIDE; break; |
899 | case K_PENTER: keymap[i] = SDLK_KP_ENTER; break; |
900 | case K_PDOT: keymap[i] = SDLK_KP_PERIOD; break; |
901 | |
902 | case K_SHIFT: if ( keymap[i] != SDLK_RSHIFT ) |
903 | keymap[i] = SDLK_LSHIFT; |
904 | break; |
905 | case K_SHIFTL: keymap[i] = SDLK_LSHIFT; break; |
906 | case K_SHIFTR: keymap[i] = SDLK_RSHIFT; break; |
907 | case K_CTRL: if ( keymap[i] != SDLK_RCTRL ) |
908 | keymap[i] = SDLK_LCTRL; |
909 | break; |
910 | case K_CTRLL: keymap[i] = SDLK_LCTRL; break; |
911 | case K_CTRLR: keymap[i] = SDLK_RCTRL; break; |
912 | case K_ALT: keymap[i] = SDLK_LALT; break; |
913 | case K_ALTGR: keymap[i] = SDLK_RALT; break; |
914 | |
915 | case K_INSERT: keymap[i] = SDLK_INSERT; break; |
916 | case K_REMOVE: keymap[i] = SDLK_DELETE; break; |
917 | case K_PGUP: keymap[i] = SDLK_PAGEUP; break; |
918 | case K_PGDN: keymap[i] = SDLK_PAGEDOWN; break; |
919 | case K_FIND: keymap[i] = SDLK_HOME; break; |
920 | case K_SELECT: keymap[i] = SDLK_END; break; |
921 | |
922 | case K_NUM: keymap[i] = SDLK_NUMLOCK; break; |
923 | case K_CAPS: keymap[i] = SDLK_CAPSLOCK; break; |
924 | |
925 | case K_F13: keymap[i] = SDLK_PRINT; break; |
926 | case K_HOLD: keymap[i] = SDLK_SCROLLOCK; break; |
927 | case K_PAUSE: keymap[i] = SDLK_PAUSE; break; |
928 | |
929 | case 127: keymap[i] = SDLK_BACKSPACE; break; |
930 | |
931 | default: break; |
932 | } |
933 | } |
934 | } |
935 | |
936 | static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym) |
937 | { |
938 | /* Set the keysym information */ |
939 | keysym->scancode = scancode; |
940 | keysym->sym = keymap[scancode]; |
941 | keysym->mod = KMOD_NONE; |
942 | |
943 | /* If UNICODE is on, get the UNICODE value for the key */ |
944 | keysym->unicode = 0; |
945 | if ( SDL_TranslateUNICODE ) { |
946 | int map; |
947 | SDLMod modstate; |
948 | |
949 | modstate = SDL_GetModState(); |
950 | map = 0; |
951 | if ( modstate & KMOD_SHIFT ) { |
952 | map |= (1<<KG_SHIFT); |
953 | } |
954 | if ( modstate & KMOD_CTRL ) { |
955 | map |= (1<<KG_CTRL); |
956 | } |
957 | if ( modstate & KMOD_ALT ) { |
958 | map |= (1<<KG_ALT); |
959 | } |
960 | if ( modstate & KMOD_MODE ) { |
961 | map |= (1<<KG_ALTGR); |
962 | } |
963 | if ( KTYP(vga_keymap[map][scancode]) == KT_LETTER ) { |
964 | if ( modstate & KMOD_CAPS ) { |
965 | map ^= (1<<KG_SHIFT); |
966 | } |
967 | } |
968 | if ( KTYP(vga_keymap[map][scancode]) == KT_PAD ) { |
969 | if ( modstate & KMOD_NUM ) { |
970 | keysym->unicode=KVAL(vga_keymap[map][scancode]); |
971 | } |
972 | } else { |
973 | keysym->unicode = KVAL(vga_keymap[map][scancode]); |
974 | } |
975 | } |
976 | return(keysym); |
977 | } |