| 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 | #ifdef SDL_CDROM_LINUX |
| 25 | |
| 26 | /* Functions for system-level CD-ROM audio control */ |
| 27 | |
| 28 | #include <string.h> /* For strerror() */ |
| 29 | #include <sys/types.h> |
| 30 | #include <sys/stat.h> |
| 31 | #include <sys/ioctl.h> |
| 32 | #include <fcntl.h> |
| 33 | #include <errno.h> |
| 34 | #include <unistd.h> |
| 35 | #ifdef __LINUX__ |
| 36 | #ifdef HAVE_LINUX_VERSION_H |
| 37 | /* linux 2.6.9 workaround */ |
| 38 | #include <linux/version.h> |
| 39 | #if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9) |
| 40 | #include <asm/types.h> |
| 41 | #define __le64 __u64 |
| 42 | #define __le32 __u32 |
| 43 | #define __le16 __u16 |
| 44 | #define __be64 __u64 |
| 45 | #define __be32 __u32 |
| 46 | #define __be16 __u16 |
| 47 | #endif /* linux 2.6.9 workaround */ |
| 48 | #endif /* HAVE_LINUX_VERSION_H */ |
| 49 | #include <linux/cdrom.h> |
| 50 | #endif |
| 51 | #ifdef __SVR4 |
| 52 | #include <sys/cdio.h> |
| 53 | #endif |
| 54 | |
| 55 | /* Define this to use the alternative getmntent() code */ |
| 56 | #ifndef __SVR4 |
| 57 | #define USE_MNTENT |
| 58 | #endif |
| 59 | |
| 60 | #ifdef USE_MNTENT |
| 61 | #if defined(__USLC__) |
| 62 | #include <sys/mntent.h> |
| 63 | #else |
| 64 | #include <mntent.h> |
| 65 | #endif |
| 66 | |
| 67 | #ifndef _PATH_MNTTAB |
| 68 | #ifdef MNTTAB |
| 69 | #define _PATH_MNTTAB MNTTAB |
| 70 | #else |
| 71 | #define _PATH_MNTTAB "/etc/fstab" |
| 72 | #endif |
| 73 | #endif /* !_PATH_MNTTAB */ |
| 74 | |
| 75 | #ifndef _PATH_MOUNTED |
| 76 | #define _PATH_MOUNTED "/etc/mtab" |
| 77 | #endif /* !_PATH_MOUNTED */ |
| 78 | |
| 79 | #ifndef MNTTYPE_CDROM |
| 80 | #define MNTTYPE_CDROM "iso9660" |
| 81 | #endif |
| 82 | #ifndef MNTTYPE_SUPER |
| 83 | #define MNTTYPE_SUPER "supermount" |
| 84 | #endif |
| 85 | #endif /* USE_MNTENT */ |
| 86 | |
| 87 | #include "SDL_cdrom.h" |
| 88 | #include "../SDL_syscdrom.h" |
| 89 | |
| 90 | |
| 91 | /* The maximum number of CD-ROM drives we'll detect */ |
| 92 | #define MAX_DRIVES 16 |
| 93 | |
| 94 | /* A list of available CD-ROM drives */ |
| 95 | static char *SDL_cdlist[MAX_DRIVES]; |
| 96 | static dev_t SDL_cdmode[MAX_DRIVES]; |
| 97 | |
| 98 | /* The system-dependent CD control functions */ |
| 99 | static const char *SDL_SYS_CDName(int drive); |
| 100 | static int SDL_SYS_CDOpen(int drive); |
| 101 | static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); |
| 102 | static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); |
| 103 | static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); |
| 104 | static int SDL_SYS_CDPause(SDL_CD *cdrom); |
| 105 | static int SDL_SYS_CDResume(SDL_CD *cdrom); |
| 106 | static int SDL_SYS_CDStop(SDL_CD *cdrom); |
| 107 | static int SDL_SYS_CDEject(SDL_CD *cdrom); |
| 108 | static void SDL_SYS_CDClose(SDL_CD *cdrom); |
| 109 | |
| 110 | /* Some ioctl() errno values which occur when the tray is empty */ |
| 111 | #ifndef ENOMEDIUM |
| 112 | #define ENOMEDIUM ENOENT |
| 113 | #endif |
| 114 | #define ERRNO_TRAYEMPTY(errno) \ |
| 115 | ((errno == EIO) || (errno == ENOENT) || \ |
| 116 | (errno == EINVAL) || (errno == ENOMEDIUM)) |
| 117 | |
| 118 | /* Check a drive to see if it is a CD-ROM */ |
| 119 | static int CheckDrive(char *drive, char *mnttype, struct stat *stbuf) |
| 120 | { |
| 121 | int is_cd, cdfd; |
| 122 | struct cdrom_subchnl info; |
| 123 | |
| 124 | /* If it doesn't exist, return -1 */ |
| 125 | if ( stat(drive, stbuf) < 0 ) { |
| 126 | return(-1); |
| 127 | } |
| 128 | |
| 129 | /* If it does exist, verify that it's an available CD-ROM */ |
| 130 | is_cd = 0; |
| 131 | if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { |
| 132 | cdfd = open(drive, (O_RDONLY|O_NONBLOCK), 0); |
| 133 | if ( cdfd >= 0 ) { |
| 134 | info.cdsc_format = CDROM_MSF; |
| 135 | /* Under Linux, EIO occurs when a disk is not present. |
| 136 | */ |
| 137 | if ( (ioctl(cdfd, CDROMSUBCHNL, &info) == 0) || |
| 138 | ERRNO_TRAYEMPTY(errno) ) { |
| 139 | is_cd = 1; |
| 140 | } |
| 141 | close(cdfd); |
| 142 | } |
| 143 | #ifdef USE_MNTENT |
| 144 | /* Even if we can't read it, it might be mounted */ |
| 145 | else if ( mnttype && (SDL_strcmp(mnttype, MNTTYPE_CDROM) == 0) ) { |
| 146 | is_cd = 1; |
| 147 | } |
| 148 | #endif |
| 149 | } |
| 150 | return(is_cd); |
| 151 | } |
| 152 | |
| 153 | /* Add a CD-ROM drive to our list of valid drives */ |
| 154 | static void AddDrive(char *drive, struct stat *stbuf) |
| 155 | { |
| 156 | int i; |
| 157 | |
| 158 | if ( SDL_numcds < MAX_DRIVES ) { |
| 159 | /* Check to make sure it's not already in our list. |
| 160 | This can happen when we see a drive via symbolic link. |
| 161 | */ |
| 162 | for ( i=0; i<SDL_numcds; ++i ) { |
| 163 | if ( stbuf->st_rdev == SDL_cdmode[i] ) { |
| 164 | #ifdef DEBUG_CDROM |
| 165 | fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); |
| 166 | #endif |
| 167 | return; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | /* Add this drive to our list */ |
| 172 | i = SDL_numcds; |
| 173 | SDL_cdlist[i] = SDL_strdup(drive); |
| 174 | if ( SDL_cdlist[i] == NULL ) { |
| 175 | SDL_OutOfMemory(); |
| 176 | return; |
| 177 | } |
| 178 | SDL_cdmode[i] = stbuf->st_rdev; |
| 179 | ++SDL_numcds; |
| 180 | #ifdef DEBUG_CDROM |
| 181 | fprintf(stderr, "Added CD-ROM drive: %s\n", drive); |
| 182 | #endif |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | #ifdef USE_MNTENT |
| 187 | static void CheckMounts(const char *mtab) |
| 188 | { |
| 189 | FILE *mntfp; |
| 190 | struct mntent *mntent; |
| 191 | struct stat stbuf; |
| 192 | |
| 193 | mntfp = setmntent(mtab, "r"); |
| 194 | if ( mntfp != NULL ) { |
| 195 | char *tmp; |
| 196 | char *mnt_type; |
| 197 | size_t mnt_type_len; |
| 198 | char *mnt_dev; |
| 199 | size_t mnt_dev_len; |
| 200 | |
| 201 | while ( (mntent=getmntent(mntfp)) != NULL ) { |
| 202 | mnt_type_len = SDL_strlen(mntent->mnt_type) + 1; |
| 203 | mnt_type = SDL_stack_alloc(char, mnt_type_len); |
| 204 | if (mnt_type == NULL) |
| 205 | continue; /* maybe you'll get lucky next time. */ |
| 206 | |
| 207 | mnt_dev_len = SDL_strlen(mntent->mnt_fsname) + 1; |
| 208 | mnt_dev = SDL_stack_alloc(char, mnt_dev_len); |
| 209 | if (mnt_dev == NULL) { |
| 210 | SDL_stack_free(mnt_type); |
| 211 | continue; |
| 212 | } |
| 213 | |
| 214 | SDL_strlcpy(mnt_type, mntent->mnt_type, mnt_type_len); |
| 215 | SDL_strlcpy(mnt_dev, mntent->mnt_fsname, mnt_dev_len); |
| 216 | |
| 217 | /* Handle "supermount" filesystem mounts */ |
| 218 | if ( SDL_strcmp(mnt_type, MNTTYPE_SUPER) == 0 ) { |
| 219 | tmp = SDL_strstr(mntent->mnt_opts, "fs="); |
| 220 | if ( tmp ) { |
| 221 | SDL_stack_free(mnt_type); |
| 222 | mnt_type = SDL_strdup(tmp + SDL_strlen("fs=")); |
| 223 | if ( mnt_type ) { |
| 224 | tmp = SDL_strchr(mnt_type, ','); |
| 225 | if ( tmp ) { |
| 226 | *tmp = '\0'; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | tmp = SDL_strstr(mntent->mnt_opts, "dev="); |
| 231 | if ( tmp ) { |
| 232 | SDL_stack_free(mnt_dev); |
| 233 | mnt_dev = SDL_strdup(tmp + SDL_strlen("dev=")); |
| 234 | if ( mnt_dev ) { |
| 235 | tmp = SDL_strchr(mnt_dev, ','); |
| 236 | if ( tmp ) { |
| 237 | *tmp = '\0'; |
| 238 | } |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | if ( SDL_strcmp(mnt_type, MNTTYPE_CDROM) == 0 ) { |
| 243 | #ifdef DEBUG_CDROM |
| 244 | fprintf(stderr, "Checking mount path from %s: %s mounted on %s of %s\n", |
| 245 | mtab, mnt_dev, mntent->mnt_dir, mnt_type); |
| 246 | #endif |
| 247 | if (CheckDrive(mnt_dev, mnt_type, &stbuf) > 0) { |
| 248 | AddDrive(mnt_dev, &stbuf); |
| 249 | } |
| 250 | } |
| 251 | SDL_stack_free(mnt_dev); |
| 252 | SDL_stack_free(mnt_type); |
| 253 | } |
| 254 | endmntent(mntfp); |
| 255 | } |
| 256 | } |
| 257 | #endif /* USE_MNTENT */ |
| 258 | |
| 259 | int SDL_SYS_CDInit(void) |
| 260 | { |
| 261 | /* checklist: /dev/cdrom, /dev/hd?, /dev/scd? /dev/sr? */ |
| 262 | static char *checklist[] = { |
| 263 | "cdrom", "?a hd?", "?0 scd?", "?0 sr?", NULL |
| 264 | }; |
| 265 | char *SDLcdrom; |
| 266 | int i, j, exists; |
| 267 | char drive[32]; |
| 268 | struct stat stbuf; |
| 269 | |
| 270 | /* Fill in our driver capabilities */ |
| 271 | SDL_CDcaps.Name = SDL_SYS_CDName; |
| 272 | SDL_CDcaps.Open = SDL_SYS_CDOpen; |
| 273 | SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; |
| 274 | SDL_CDcaps.Status = SDL_SYS_CDStatus; |
| 275 | SDL_CDcaps.Play = SDL_SYS_CDPlay; |
| 276 | SDL_CDcaps.Pause = SDL_SYS_CDPause; |
| 277 | SDL_CDcaps.Resume = SDL_SYS_CDResume; |
| 278 | SDL_CDcaps.Stop = SDL_SYS_CDStop; |
| 279 | SDL_CDcaps.Eject = SDL_SYS_CDEject; |
| 280 | SDL_CDcaps.Close = SDL_SYS_CDClose; |
| 281 | |
| 282 | /* Look in the environment for our CD-ROM drive list */ |
| 283 | SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ |
| 284 | if ( SDLcdrom != NULL ) { |
| 285 | char *cdpath, *delim; |
| 286 | size_t len = SDL_strlen(SDLcdrom)+1; |
| 287 | cdpath = SDL_stack_alloc(char, len); |
| 288 | if ( cdpath != NULL ) { |
| 289 | SDL_strlcpy(cdpath, SDLcdrom, len); |
| 290 | SDLcdrom = cdpath; |
| 291 | do { |
| 292 | delim = SDL_strchr(SDLcdrom, ':'); |
| 293 | if ( delim ) { |
| 294 | *delim++ = '\0'; |
| 295 | } |
| 296 | #ifdef DEBUG_CDROM |
| 297 | fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); |
| 298 | #endif |
| 299 | if ( CheckDrive(SDLcdrom, NULL, &stbuf) > 0 ) { |
| 300 | AddDrive(SDLcdrom, &stbuf); |
| 301 | } |
| 302 | if ( delim ) { |
| 303 | SDLcdrom = delim; |
| 304 | } else { |
| 305 | SDLcdrom = NULL; |
| 306 | } |
| 307 | } while ( SDLcdrom ); |
| 308 | SDL_stack_free(cdpath); |
| 309 | } |
| 310 | |
| 311 | /* If we found our drives, there's nothing left to do */ |
| 312 | if ( SDL_numcds > 0 ) { |
| 313 | return(0); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | #ifdef USE_MNTENT |
| 318 | /* Check /dev/cdrom first :-) */ |
| 319 | if (CheckDrive("/dev/cdrom", NULL, &stbuf) > 0) { |
| 320 | AddDrive("/dev/cdrom", &stbuf); |
| 321 | } |
| 322 | |
| 323 | /* Now check the currently mounted CD drives */ |
| 324 | CheckMounts(_PATH_MOUNTED); |
| 325 | |
| 326 | /* Finally check possible mountable drives in /etc/fstab */ |
| 327 | CheckMounts(_PATH_MNTTAB); |
| 328 | |
| 329 | /* If we found our drives, there's nothing left to do */ |
| 330 | if ( SDL_numcds > 0 ) { |
| 331 | return(0); |
| 332 | } |
| 333 | #endif /* USE_MNTENT */ |
| 334 | |
| 335 | /* Scan the system for CD-ROM drives. |
| 336 | Not always 100% reliable, so use the USE_MNTENT code above first. |
| 337 | */ |
| 338 | for ( i=0; checklist[i]; ++i ) { |
| 339 | if ( checklist[i][0] == '?' ) { |
| 340 | char *insert; |
| 341 | exists = 1; |
| 342 | for ( j=checklist[i][1]; exists; ++j ) { |
| 343 | SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", &checklist[i][3]); |
| 344 | insert = SDL_strchr(drive, '?'); |
| 345 | if ( insert != NULL ) { |
| 346 | *insert = j; |
| 347 | } |
| 348 | #ifdef DEBUG_CDROM |
| 349 | fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); |
| 350 | #endif |
| 351 | switch (CheckDrive(drive, NULL, &stbuf)) { |
| 352 | /* Drive exists and is a CD-ROM */ |
| 353 | case 1: |
| 354 | AddDrive(drive, &stbuf); |
| 355 | break; |
| 356 | /* Drive exists, but isn't a CD-ROM */ |
| 357 | case 0: |
| 358 | break; |
| 359 | /* Drive doesn't exist */ |
| 360 | case -1: |
| 361 | exists = 0; |
| 362 | break; |
| 363 | } |
| 364 | } |
| 365 | } else { |
| 366 | SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", checklist[i]); |
| 367 | #ifdef DEBUG_CDROM |
| 368 | fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); |
| 369 | #endif |
| 370 | if ( CheckDrive(drive, NULL, &stbuf) > 0 ) { |
| 371 | AddDrive(drive, &stbuf); |
| 372 | } |
| 373 | } |
| 374 | } |
| 375 | return(0); |
| 376 | } |
| 377 | |
| 378 | /* General ioctl() CD-ROM command function */ |
| 379 | static int SDL_SYS_CDioctl(int id, int command, void *arg) |
| 380 | { |
| 381 | int retval; |
| 382 | |
| 383 | retval = ioctl(id, command, arg); |
| 384 | if ( retval < 0 ) { |
| 385 | SDL_SetError("ioctl() error: %s", strerror(errno)); |
| 386 | } |
| 387 | return(retval); |
| 388 | } |
| 389 | |
| 390 | static const char *SDL_SYS_CDName(int drive) |
| 391 | { |
| 392 | return(SDL_cdlist[drive]); |
| 393 | } |
| 394 | |
| 395 | static int SDL_SYS_CDOpen(int drive) |
| 396 | { |
| 397 | return(open(SDL_cdlist[drive], (O_RDONLY|O_NONBLOCK), 0)); |
| 398 | } |
| 399 | |
| 400 | static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) |
| 401 | { |
| 402 | struct cdrom_tochdr toc; |
| 403 | int i, okay; |
| 404 | struct cdrom_tocentry entry; |
| 405 | |
| 406 | okay = 0; |
| 407 | if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) == 0 ) { |
| 408 | cdrom->numtracks = toc.cdth_trk1-toc.cdth_trk0+1; |
| 409 | if ( cdrom->numtracks > SDL_MAX_TRACKS ) { |
| 410 | cdrom->numtracks = SDL_MAX_TRACKS; |
| 411 | } |
| 412 | /* Read all the track TOC entries */ |
| 413 | for ( i=0; i<=cdrom->numtracks; ++i ) { |
| 414 | if ( i == cdrom->numtracks ) { |
| 415 | cdrom->track[i].id = CDROM_LEADOUT; |
| 416 | } else { |
| 417 | cdrom->track[i].id = toc.cdth_trk0+i; |
| 418 | } |
| 419 | entry.cdte_track = cdrom->track[i].id; |
| 420 | entry.cdte_format = CDROM_MSF; |
| 421 | if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCENTRY, |
| 422 | &entry) < 0 ) { |
| 423 | break; |
| 424 | } else { |
| 425 | if ( entry.cdte_ctrl & CDROM_DATA_TRACK ) { |
| 426 | cdrom->track[i].type = SDL_DATA_TRACK; |
| 427 | } else { |
| 428 | cdrom->track[i].type = SDL_AUDIO_TRACK; |
| 429 | } |
| 430 | cdrom->track[i].offset = MSF_TO_FRAMES( |
| 431 | entry.cdte_addr.msf.minute, |
| 432 | entry.cdte_addr.msf.second, |
| 433 | entry.cdte_addr.msf.frame); |
| 434 | cdrom->track[i].length = 0; |
| 435 | if ( i > 0 ) { |
| 436 | cdrom->track[i-1].length = |
| 437 | cdrom->track[i].offset- |
| 438 | cdrom->track[i-1].offset; |
| 439 | } |
| 440 | } |
| 441 | } |
| 442 | if ( i == (cdrom->numtracks+1) ) { |
| 443 | okay = 1; |
| 444 | } |
| 445 | } |
| 446 | return(okay ? 0 : -1); |
| 447 | } |
| 448 | |
| 449 | /* Get CD-ROM status */ |
| 450 | static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) |
| 451 | { |
| 452 | CDstatus status; |
| 453 | struct cdrom_tochdr toc; |
| 454 | struct cdrom_subchnl info; |
| 455 | |
| 456 | info.cdsc_format = CDROM_MSF; |
| 457 | if ( ioctl(cdrom->id, CDROMSUBCHNL, &info) < 0 ) { |
| 458 | if ( ERRNO_TRAYEMPTY(errno) ) { |
| 459 | status = CD_TRAYEMPTY; |
| 460 | } else { |
| 461 | status = CD_ERROR; |
| 462 | } |
| 463 | } else { |
| 464 | switch (info.cdsc_audiostatus) { |
| 465 | case CDROM_AUDIO_INVALID: |
| 466 | case CDROM_AUDIO_NO_STATUS: |
| 467 | /* Try to determine if there's a CD available */ |
| 468 | if (ioctl(cdrom->id, CDROMREADTOCHDR, &toc)==0) |
| 469 | status = CD_STOPPED; |
| 470 | else |
| 471 | status = CD_TRAYEMPTY; |
| 472 | break; |
| 473 | case CDROM_AUDIO_COMPLETED: |
| 474 | status = CD_STOPPED; |
| 475 | break; |
| 476 | case CDROM_AUDIO_PLAY: |
| 477 | status = CD_PLAYING; |
| 478 | break; |
| 479 | case CDROM_AUDIO_PAUSED: |
| 480 | /* Workaround buggy CD-ROM drive */ |
| 481 | if ( info.cdsc_trk == CDROM_LEADOUT ) { |
| 482 | status = CD_STOPPED; |
| 483 | } else { |
| 484 | status = CD_PAUSED; |
| 485 | } |
| 486 | break; |
| 487 | default: |
| 488 | status = CD_ERROR; |
| 489 | break; |
| 490 | } |
| 491 | } |
| 492 | if ( position ) { |
| 493 | if ( status == CD_PLAYING || (status == CD_PAUSED) ) { |
| 494 | *position = MSF_TO_FRAMES( |
| 495 | info.cdsc_absaddr.msf.minute, |
| 496 | info.cdsc_absaddr.msf.second, |
| 497 | info.cdsc_absaddr.msf.frame); |
| 498 | } else { |
| 499 | *position = 0; |
| 500 | } |
| 501 | } |
| 502 | return(status); |
| 503 | } |
| 504 | |
| 505 | /* Start play */ |
| 506 | static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) |
| 507 | { |
| 508 | struct cdrom_msf playtime; |
| 509 | |
| 510 | FRAMES_TO_MSF(start, |
| 511 | &playtime.cdmsf_min0, &playtime.cdmsf_sec0, &playtime.cdmsf_frame0); |
| 512 | FRAMES_TO_MSF(start+length, |
| 513 | &playtime.cdmsf_min1, &playtime.cdmsf_sec1, &playtime.cdmsf_frame1); |
| 514 | #ifdef DEBUG_CDROM |
| 515 | fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", |
| 516 | playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, |
| 517 | playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); |
| 518 | #endif |
| 519 | return(SDL_SYS_CDioctl(cdrom->id, CDROMPLAYMSF, &playtime)); |
| 520 | } |
| 521 | |
| 522 | /* Pause play */ |
| 523 | static int SDL_SYS_CDPause(SDL_CD *cdrom) |
| 524 | { |
| 525 | return(SDL_SYS_CDioctl(cdrom->id, CDROMPAUSE, 0)); |
| 526 | } |
| 527 | |
| 528 | /* Resume play */ |
| 529 | static int SDL_SYS_CDResume(SDL_CD *cdrom) |
| 530 | { |
| 531 | return(SDL_SYS_CDioctl(cdrom->id, CDROMRESUME, 0)); |
| 532 | } |
| 533 | |
| 534 | /* Stop play */ |
| 535 | static int SDL_SYS_CDStop(SDL_CD *cdrom) |
| 536 | { |
| 537 | return(SDL_SYS_CDioctl(cdrom->id, CDROMSTOP, 0)); |
| 538 | } |
| 539 | |
| 540 | /* Eject the CD-ROM */ |
| 541 | static int SDL_SYS_CDEject(SDL_CD *cdrom) |
| 542 | { |
| 543 | return(SDL_SYS_CDioctl(cdrom->id, CDROMEJECT, 0)); |
| 544 | } |
| 545 | |
| 546 | /* Close the CD-ROM handle */ |
| 547 | static void SDL_SYS_CDClose(SDL_CD *cdrom) |
| 548 | { |
| 549 | close(cdrom->id); |
| 550 | } |
| 551 | |
| 552 | void SDL_SYS_CDQuit(void) |
| 553 | { |
| 554 | int i; |
| 555 | |
| 556 | if ( SDL_numcds > 0 ) { |
| 557 | for ( i=0; i<SDL_numcds; ++i ) { |
| 558 | SDL_free(SDL_cdlist[i]); |
| 559 | } |
| 560 | SDL_numcds = 0; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | #endif /* SDL_CDROM_LINUX */ |