Mercurial > sdl-ios-xcode
annotate src/cdrom/linux/SDL_syscdrom.c @ 1051:091350827e08
SDL_CDOpen() fails on Linux if data track on disc is mounted in the
filesystem. Removing O_EXCL from open() call fixes this.
Problem and solution noted by "Fosters":
http://www.libsdl.org/pipermail/sdl/2005-March/068028.html
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 17 Apr 2005 10:36:03 +0000 |
| parents | 0e6627072f7a |
| children | 3e637850c02b |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 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 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Functions for system-level CD-ROM audio control */ | |
| 29 | |
| 30 #include <sys/types.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <sys/stat.h> | |
| 33 #include <sys/ioctl.h> | |
| 34 #include <fcntl.h> | |
| 35 #include <stdio.h> | |
| 36 #include <string.h> | |
| 37 #include <errno.h> | |
| 38 #include <unistd.h> | |
| 39 #ifdef __linux__ | |
|
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40 /* linux 2.6.9 workaround */ |
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41 #include <linux/version.h> |
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42 #if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9) |
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43 #include <asm/types.h> |
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44 #define __le64 __u64 |
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45 #define __le32 __u32 |
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46 #define __le16 __u16 |
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47 #define __be64 __u64 |
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48 #define __be32 __u32 |
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49 #define __be16 __u16 |
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50 #endif /* linux 2.6.9 workaround */ |
| 0 | 51 #include <linux/cdrom.h> |
| 52 #endif | |
| 53 #ifdef __SVR4 | |
| 54 #include <sys/cdio.h> | |
| 55 #endif | |
| 56 | |
| 57 /* Define this to use the alternative getmntent() code */ | |
| 58 #ifndef __SVR4 | |
| 59 #define USE_MNTENT | |
| 60 #endif | |
| 61 | |
| 62 #ifdef USE_MNTENT | |
| 63 #if defined(__USLC__) | |
| 64 #include <sys/mntent.h> | |
| 65 #else | |
| 66 #include <mntent.h> | |
| 67 #endif | |
| 68 | |
| 69 #ifndef _PATH_MNTTAB | |
| 70 #ifdef MNTTAB | |
| 71 #define _PATH_MNTTAB MNTTAB | |
| 72 #else | |
| 73 #define _PATH_MNTTAB "/etc/fstab" | |
| 74 #endif | |
| 75 #endif /* !_PATH_MNTTAB */ | |
| 76 | |
| 77 #ifndef _PATH_MOUNTED | |
| 78 #define _PATH_MOUNTED "/etc/mtab" | |
| 79 #endif /* !_PATH_MOUNTED */ | |
| 80 | |
| 81 #ifndef MNTTYPE_CDROM | |
| 82 #define MNTTYPE_CDROM "iso9660" | |
| 83 #endif | |
| 84 #ifndef MNTTYPE_SUPER | |
| 85 #define MNTTYPE_SUPER "supermount" | |
| 86 #endif | |
| 87 #endif /* USE_MNTENT */ | |
| 88 | |
| 89 #include "SDL_error.h" | |
| 90 #include "SDL_cdrom.h" | |
| 91 #include "SDL_syscdrom.h" | |
| 92 | |
| 93 | |
| 94 /* The maximum number of CD-ROM drives we'll detect */ | |
| 95 #define MAX_DRIVES 16 | |
| 96 | |
| 97 /* A list of available CD-ROM drives */ | |
| 98 static char *SDL_cdlist[MAX_DRIVES]; | |
| 99 static dev_t SDL_cdmode[MAX_DRIVES]; | |
| 100 | |
| 101 /* The system-dependent CD control functions */ | |
| 102 static const char *SDL_SYS_CDName(int drive); | |
| 103 static int SDL_SYS_CDOpen(int drive); | |
| 104 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 105 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 106 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 107 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 108 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 109 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 110 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 111 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 112 | |
| 113 /* Some ioctl() errno values which occur when the tray is empty */ | |
|
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114 #ifndef ENOMEDIUM |
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115 #define ENOMEDIUM ENOENT |
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116 #endif |
| 0 | 117 #define ERRNO_TRAYEMPTY(errno) \ |
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118 ((errno == EIO) || (errno == ENOENT) || \ |
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119 (errno == EINVAL) || (errno == ENOMEDIUM)) |
| 0 | 120 |
| 121 /* Check a drive to see if it is a CD-ROM */ | |
| 122 static int CheckDrive(char *drive, char *mnttype, struct stat *stbuf) | |
| 123 { | |
| 124 int is_cd, cdfd; | |
| 125 struct cdrom_subchnl info; | |
| 126 | |
| 127 /* If it doesn't exist, return -1 */ | |
| 128 if ( stat(drive, stbuf) < 0 ) { | |
| 129 return(-1); | |
| 130 } | |
| 131 | |
| 132 /* If it does exist, verify that it's an available CD-ROM */ | |
| 133 is_cd = 0; | |
| 134 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { | |
|
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135 cdfd = open(drive, (O_RDONLY|O_NONBLOCK), 0); |
| 0 | 136 if ( cdfd >= 0 ) { |
| 137 info.cdsc_format = CDROM_MSF; | |
| 138 /* Under Linux, EIO occurs when a disk is not present. | |
| 139 */ | |
| 140 if ( (ioctl(cdfd, CDROMSUBCHNL, &info) == 0) || | |
| 141 ERRNO_TRAYEMPTY(errno) ) { | |
| 142 is_cd = 1; | |
| 143 } | |
| 144 close(cdfd); | |
| 145 } | |
| 146 #ifdef USE_MNTENT | |
| 147 /* Even if we can't read it, it might be mounted */ | |
| 148 else if ( mnttype && (strcmp(mnttype, MNTTYPE_CDROM) == 0) ) { | |
| 149 is_cd = 1; | |
| 150 } | |
| 151 #endif | |
| 152 } | |
| 153 return(is_cd); | |
| 154 } | |
| 155 | |
| 156 /* Add a CD-ROM drive to our list of valid drives */ | |
| 157 static void AddDrive(char *drive, struct stat *stbuf) | |
| 158 { | |
| 159 int i; | |
| 160 | |
| 161 if ( SDL_numcds < MAX_DRIVES ) { | |
| 162 /* Check to make sure it's not already in our list. | |
| 163 This can happen when we see a drive via symbolic link. | |
| 164 */ | |
| 165 for ( i=0; i<SDL_numcds; ++i ) { | |
| 166 if ( stbuf->st_rdev == SDL_cdmode[i] ) { | |
| 167 #ifdef DEBUG_CDROM | |
| 168 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); | |
| 169 #endif | |
| 170 return; | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 /* Add this drive to our list */ | |
| 175 i = SDL_numcds; | |
| 176 SDL_cdlist[i] = (char *)malloc(strlen(drive)+1); | |
| 177 if ( SDL_cdlist[i] == NULL ) { | |
| 178 SDL_OutOfMemory(); | |
| 179 return; | |
| 180 } | |
| 181 strcpy(SDL_cdlist[i], drive); | |
| 182 SDL_cdmode[i] = stbuf->st_rdev; | |
| 183 ++SDL_numcds; | |
| 184 #ifdef DEBUG_CDROM | |
| 185 fprintf(stderr, "Added CD-ROM drive: %s\n", drive); | |
| 186 #endif | |
| 187 } | |
| 188 } | |
| 189 | |
| 190 #ifdef USE_MNTENT | |
| 191 static void CheckMounts(const char *mtab) | |
| 192 { | |
| 193 FILE *mntfp; | |
| 194 struct mntent *mntent; | |
| 195 struct stat stbuf; | |
| 196 | |
| 197 mntfp = setmntent(mtab, "r"); | |
| 198 if ( mntfp != NULL ) { | |
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199 char *tmp; |
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200 char *mnt_type; |
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201 char *mnt_dev; |
| 0 | 202 |
| 203 while ( (mntent=getmntent(mntfp)) != NULL ) { | |
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204 mnt_type = malloc(strlen(mntent->mnt_type) + 1); |
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205 if (mnt_type == NULL) |
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206 continue; /* maybe you'll get lucky next time. */ |
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207 |
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208 mnt_dev = malloc(strlen(mntent->mnt_fsname) + 1); |
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209 if (mnt_dev == NULL) { |
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210 free(mnt_type); |
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211 continue; |
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212 } |
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213 |
| 0 | 214 strcpy(mnt_type, mntent->mnt_type); |
| 215 strcpy(mnt_dev, mntent->mnt_fsname); | |
| 216 | |
| 217 /* Handle "supermount" filesystem mounts */ | |
| 218 if ( strcmp(mnt_type, MNTTYPE_SUPER) == 0 ) { | |
| 219 tmp = strstr(mntent->mnt_opts, "fs="); | |
| 220 if ( tmp ) { | |
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221 free(mnt_type); |
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222 mnt_type = strdup(tmp + strlen("fs=")); |
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223 if ( mnt_type ) { |
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224 tmp = strchr(mnt_type, ','); |
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225 if ( tmp ) { |
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226 *tmp = '\0'; |
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227 } |
| 0 | 228 } |
| 229 } | |
| 230 tmp = strstr(mntent->mnt_opts, "dev="); | |
| 231 if ( tmp ) { | |
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232 free(mnt_dev); |
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233 mnt_dev = strdup(tmp + strlen("dev=")); |
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234 if ( mnt_dev ) { |
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235 tmp = strchr(mnt_dev, ','); |
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236 if ( tmp ) { |
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237 *tmp = '\0'; |
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238 } |
| 0 | 239 } |
| 240 } | |
| 241 } | |
| 242 if ( 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 } | |
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251 free(mnt_dev); |
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252 free(mnt_type); |
| 0 | 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 = getenv("SDL_CDROM"); /* ':' separated list of devices */ | |
| 284 if ( SDLcdrom != NULL ) { | |
| 285 char *cdpath, *delim; | |
| 286 cdpath = malloc(strlen(SDLcdrom)+1); | |
| 287 if ( cdpath != NULL ) { | |
| 288 strcpy(cdpath, SDLcdrom); | |
| 289 SDLcdrom = cdpath; | |
| 290 do { | |
| 291 delim = strchr(SDLcdrom, ':'); | |
| 292 if ( delim ) { | |
| 293 *delim++ = '\0'; | |
| 294 } | |
| 295 #ifdef DEBUG_CDROM | |
| 296 fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); | |
| 297 #endif | |
| 298 if ( CheckDrive(SDLcdrom, NULL, &stbuf) > 0 ) { | |
| 299 AddDrive(SDLcdrom, &stbuf); | |
| 300 } | |
| 301 if ( delim ) { | |
| 302 SDLcdrom = delim; | |
| 303 } else { | |
| 304 SDLcdrom = NULL; | |
| 305 } | |
| 306 } while ( SDLcdrom ); | |
| 307 free(cdpath); | |
| 308 } | |
| 309 | |
| 310 /* If we found our drives, there's nothing left to do */ | |
| 311 if ( SDL_numcds > 0 ) { | |
| 312 return(0); | |
| 313 } | |
| 314 } | |
| 315 | |
| 316 #ifdef USE_MNTENT | |
| 317 /* Check /dev/cdrom first :-) */ | |
| 318 if (CheckDrive("/dev/cdrom", NULL, &stbuf) > 0) { | |
| 319 AddDrive("/dev/cdrom", &stbuf); | |
| 320 } | |
| 321 | |
| 322 /* Now check the currently mounted CD drives */ | |
| 323 CheckMounts(_PATH_MOUNTED); | |
| 324 | |
| 325 /* Finally check possible mountable drives in /etc/fstab */ | |
| 326 CheckMounts(_PATH_MNTTAB); | |
| 327 | |
| 328 /* If we found our drives, there's nothing left to do */ | |
| 329 if ( SDL_numcds > 0 ) { | |
| 330 return(0); | |
| 331 } | |
| 332 #endif /* USE_MNTENT */ | |
| 333 | |
| 334 /* Scan the system for CD-ROM drives. | |
| 335 Not always 100% reliable, so use the USE_MNTENT code above first. | |
| 336 */ | |
| 337 for ( i=0; checklist[i]; ++i ) { | |
| 338 if ( checklist[i][0] == '?' ) { | |
| 339 char *insert; | |
| 340 exists = 1; | |
| 341 for ( j=checklist[i][1]; exists; ++j ) { | |
| 342 sprintf(drive, "/dev/%s", &checklist[i][3]); | |
| 343 insert = strchr(drive, '?'); | |
| 344 if ( insert != NULL ) { | |
| 345 *insert = j; | |
| 346 } | |
| 347 #ifdef DEBUG_CDROM | |
| 348 fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); | |
| 349 #endif | |
| 350 switch (CheckDrive(drive, NULL, &stbuf)) { | |
| 351 /* Drive exists and is a CD-ROM */ | |
| 352 case 1: | |
| 353 AddDrive(drive, &stbuf); | |
| 354 break; | |
| 355 /* Drive exists, but isn't a CD-ROM */ | |
| 356 case 0: | |
| 357 break; | |
| 358 /* Drive doesn't exist */ | |
| 359 case -1: | |
| 360 exists = 0; | |
| 361 break; | |
| 362 } | |
| 363 } | |
| 364 } else { | |
| 365 sprintf(drive, "/dev/%s", checklist[i]); | |
| 366 #ifdef DEBUG_CDROM | |
| 367 fprintf(stderr, "Checking possible CD-ROM drive: %s\n", drive); | |
| 368 #endif | |
| 369 if ( CheckDrive(drive, NULL, &stbuf) > 0 ) { | |
| 370 AddDrive(drive, &stbuf); | |
| 371 } | |
| 372 } | |
| 373 } | |
| 374 return(0); | |
| 375 } | |
| 376 | |
| 377 /* General ioctl() CD-ROM command function */ | |
| 378 static int SDL_SYS_CDioctl(int id, int command, void *arg) | |
| 379 { | |
| 380 int retval; | |
| 381 | |
| 382 retval = ioctl(id, command, arg); | |
| 383 if ( retval < 0 ) { | |
| 384 SDL_SetError("ioctl() error: %s", strerror(errno)); | |
| 385 } | |
| 386 return(retval); | |
| 387 } | |
| 388 | |
| 389 static const char *SDL_SYS_CDName(int drive) | |
| 390 { | |
| 391 return(SDL_cdlist[drive]); | |
| 392 } | |
| 393 | |
| 394 static int SDL_SYS_CDOpen(int drive) | |
| 395 { | |
|
1051
091350827e08
SDL_CDOpen() fails on Linux if data track on disc is mounted in the
Ryan C. Gordon <icculus@icculus.org>
parents:
998
diff
changeset
|
396 return(open(SDL_cdlist[drive], (O_RDONLY|O_NONBLOCK), 0)); |
| 0 | 397 } |
| 398 | |
| 399 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 400 { | |
| 401 struct cdrom_tochdr toc; | |
| 402 int i, okay; | |
| 403 struct cdrom_tocentry entry; | |
| 404 | |
| 405 okay = 0; | |
| 406 if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) == 0 ) { | |
| 407 cdrom->numtracks = toc.cdth_trk1-toc.cdth_trk0+1; | |
| 408 if ( cdrom->numtracks > SDL_MAX_TRACKS ) { | |
| 409 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 410 } | |
| 411 /* Read all the track TOC entries */ | |
| 412 for ( i=0; i<=cdrom->numtracks; ++i ) { | |
| 413 if ( i == cdrom->numtracks ) { | |
| 414 cdrom->track[i].id = CDROM_LEADOUT; | |
| 415 } else { | |
| 416 cdrom->track[i].id = toc.cdth_trk0+i; | |
| 417 } | |
| 418 entry.cdte_track = cdrom->track[i].id; | |
| 419 entry.cdte_format = CDROM_MSF; | |
| 420 if ( SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCENTRY, | |
| 421 &entry) < 0 ) { | |
| 422 break; | |
| 423 } else { | |
| 424 if ( entry.cdte_ctrl & CDROM_DATA_TRACK ) { | |
| 425 cdrom->track[i].type = SDL_DATA_TRACK; | |
| 426 } else { | |
| 427 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 428 } | |
| 429 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 430 entry.cdte_addr.msf.minute, | |
| 431 entry.cdte_addr.msf.second, | |
| 432 entry.cdte_addr.msf.frame); | |
| 433 cdrom->track[i].length = 0; | |
| 434 if ( i > 0 ) { | |
| 435 cdrom->track[i-1].length = | |
| 436 cdrom->track[i].offset- | |
| 437 cdrom->track[i-1].offset; | |
| 438 } | |
| 439 } | |
| 440 } | |
| 441 if ( i == (cdrom->numtracks+1) ) { | |
| 442 okay = 1; | |
| 443 } | |
| 444 } | |
| 445 return(okay ? 0 : -1); | |
| 446 } | |
| 447 | |
| 448 /* Get CD-ROM status */ | |
| 449 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 450 { | |
| 451 CDstatus status; | |
| 452 struct cdrom_tochdr toc; | |
| 453 struct cdrom_subchnl info; | |
| 454 | |
| 455 info.cdsc_format = CDROM_MSF; | |
| 456 if ( ioctl(cdrom->id, CDROMSUBCHNL, &info) < 0 ) { | |
| 457 if ( ERRNO_TRAYEMPTY(errno) ) { | |
| 458 status = CD_TRAYEMPTY; | |
| 459 } else { | |
| 460 status = CD_ERROR; | |
| 461 } | |
| 462 } else { | |
| 463 switch (info.cdsc_audiostatus) { | |
| 464 case CDROM_AUDIO_INVALID: | |
| 465 case CDROM_AUDIO_NO_STATUS: | |
| 466 /* Try to determine if there's a CD available */ | |
| 467 if (ioctl(cdrom->id, CDROMREADTOCHDR, &toc)==0) | |
| 468 status = CD_STOPPED; | |
| 469 else | |
| 470 status = CD_TRAYEMPTY; | |
| 471 break; | |
| 472 case CDROM_AUDIO_COMPLETED: | |
| 473 status = CD_STOPPED; | |
| 474 break; | |
| 475 case CDROM_AUDIO_PLAY: | |
| 476 status = CD_PLAYING; | |
| 477 break; | |
| 478 case CDROM_AUDIO_PAUSED: | |
| 479 /* Workaround buggy CD-ROM drive */ | |
| 480 if ( info.cdsc_trk == CDROM_LEADOUT ) { | |
| 481 status = CD_STOPPED; | |
| 482 } else { | |
| 483 status = CD_PAUSED; | |
| 484 } | |
| 485 break; | |
| 486 default: | |
| 487 status = CD_ERROR; | |
| 488 break; | |
| 489 } | |
| 490 } | |
| 491 if ( position ) { | |
| 492 if ( status == CD_PLAYING || (status == CD_PAUSED) ) { | |
| 493 *position = MSF_TO_FRAMES( | |
| 494 info.cdsc_absaddr.msf.minute, | |
| 495 info.cdsc_absaddr.msf.second, | |
| 496 info.cdsc_absaddr.msf.frame); | |
| 497 } else { | |
| 498 *position = 0; | |
| 499 } | |
| 500 } | |
| 501 return(status); | |
| 502 } | |
| 503 | |
| 504 /* Start play */ | |
| 505 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 506 { | |
| 507 struct cdrom_msf playtime; | |
| 508 | |
| 509 FRAMES_TO_MSF(start, | |
| 510 &playtime.cdmsf_min0, &playtime.cdmsf_sec0, &playtime.cdmsf_frame0); | |
| 511 FRAMES_TO_MSF(start+length, | |
| 512 &playtime.cdmsf_min1, &playtime.cdmsf_sec1, &playtime.cdmsf_frame1); | |
| 513 #ifdef DEBUG_CDROM | |
| 514 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
| 515 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, | |
| 516 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); | |
| 517 #endif | |
| 518 return(SDL_SYS_CDioctl(cdrom->id, CDROMPLAYMSF, &playtime)); | |
| 519 } | |
| 520 | |
| 521 /* Pause play */ | |
| 522 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 523 { | |
| 524 return(SDL_SYS_CDioctl(cdrom->id, CDROMPAUSE, 0)); | |
| 525 } | |
| 526 | |
| 527 /* Resume play */ | |
| 528 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 529 { | |
| 530 return(SDL_SYS_CDioctl(cdrom->id, CDROMRESUME, 0)); | |
| 531 } | |
| 532 | |
| 533 /* Stop play */ | |
| 534 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 535 { | |
| 536 return(SDL_SYS_CDioctl(cdrom->id, CDROMSTOP, 0)); | |
| 537 } | |
| 538 | |
| 539 /* Eject the CD-ROM */ | |
| 540 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 541 { | |
| 542 return(SDL_SYS_CDioctl(cdrom->id, CDROMEJECT, 0)); | |
| 543 } | |
| 544 | |
| 545 /* Close the CD-ROM handle */ | |
| 546 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 547 { | |
| 548 close(cdrom->id); | |
| 549 } | |
| 550 | |
| 551 void SDL_SYS_CDQuit(void) | |
| 552 { | |
| 553 int i; | |
| 554 | |
| 555 if ( SDL_numcds > 0 ) { | |
| 556 for ( i=0; i<SDL_numcds; ++i ) { | |
| 557 free(SDL_cdlist[i]); | |
| 558 } | |
| 559 SDL_numcds = 0; | |
| 560 } | |
| 561 } | |
| 562 |