| 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 | } |
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