| 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 | Carsten Griwodz |
| 20 | griff@kom.tu-darmstadt.de |
| 21 | |
| 22 | based on linux/SDL_syscdrom.c by Sam Lantinga |
| 23 | */ |
| 24 | #include "SDL_config.h" |
| 25 | |
| 26 | #ifdef SDL_CDROM_AIX |
| 27 | |
| 28 | /* Functions for system-level CD-ROM audio control */ |
| 29 | |
| 30 | /*#define DEBUG_CDROM 1*/ |
| 31 | |
| 32 | #include <sys/types.h> |
| 33 | #include <sys/stat.h> |
| 34 | #include <fcntl.h> |
| 35 | #include <errno.h> |
| 36 | #include <unistd.h> |
| 37 | |
| 38 | #include <sys/ioctl.h> |
| 39 | #include <sys/devinfo.h> |
| 40 | #include <sys/mntctl.h> |
| 41 | #include <sys/statfs.h> |
| 42 | #include <sys/vmount.h> |
| 43 | #include <fstab.h> |
| 44 | #include <sys/scdisk.h> |
| 45 | |
| 46 | #include "SDL_cdrom.h" |
| 47 | #include "../SDL_syscdrom.h" |
| 48 | |
| 49 | /* The maximum number of CD-ROM drives we'll detect */ |
| 50 | #define MAX_DRIVES 16 |
| 51 | |
| 52 | /* A list of available CD-ROM drives */ |
| 53 | static char *SDL_cdlist[MAX_DRIVES]; |
| 54 | static dev_t SDL_cdmode[MAX_DRIVES]; |
| 55 | |
| 56 | /* The system-dependent CD control functions */ |
| 57 | static const char *SDL_SYS_CDName(int drive); |
| 58 | static int SDL_SYS_CDOpen(int drive); |
| 59 | static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); |
| 60 | static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); |
| 61 | static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); |
| 62 | static int SDL_SYS_CDPause(SDL_CD *cdrom); |
| 63 | static int SDL_SYS_CDResume(SDL_CD *cdrom); |
| 64 | static int SDL_SYS_CDStop(SDL_CD *cdrom); |
| 65 | static int SDL_SYS_CDEject(SDL_CD *cdrom); |
| 66 | static void SDL_SYS_CDClose(SDL_CD *cdrom); |
| 67 | static int SDL_SYS_CDioctl(int id, int command, void *arg); |
| 68 | |
| 69 | /* Check a drive to see if it is a CD-ROM */ |
| 70 | static int CheckDrive(char *drive, struct stat *stbuf) |
| 71 | { |
| 72 | int is_cd; |
| 73 | int cdfd; |
| 74 | int ret; |
| 75 | struct devinfo info; |
| 76 | |
| 77 | /* If it doesn't exist, return -1 */ |
| 78 | if ( stat(drive, stbuf) < 0 ) { |
| 79 | return -1; |
| 80 | } |
| 81 | |
| 82 | /* If it does exist, verify that it's an available CD-ROM */ |
| 83 | is_cd = 0; |
| 84 | if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { |
| 85 | cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0); |
| 86 | if ( cdfd >= 0 ) { |
| 87 | ret = SDL_SYS_CDioctl( cdfd, IOCINFO, &info ); |
| 88 | if ( ret < 0 ) { |
| 89 | /* Some kind of error */ |
| 90 | is_cd = 0; |
| 91 | } else { |
| 92 | if ( info.devtype == DD_CDROM ) { |
| 93 | is_cd = 1; |
| 94 | } else { |
| 95 | is_cd = 0; |
| 96 | } |
| 97 | } |
| 98 | close(cdfd); |
| 99 | } |
| 100 | #ifdef DEBUG_CDROM |
| 101 | else |
| 102 | { |
| 103 | fprintf(stderr, "Could not open drive %s (%s)\n", drive, strerror(errno)); |
| 104 | } |
| 105 | #endif |
| 106 | } |
| 107 | return is_cd; |
| 108 | } |
| 109 | |
| 110 | /* Add a CD-ROM drive to our list of valid drives */ |
| 111 | static void AddDrive(char *drive, struct stat *stbuf) |
| 112 | { |
| 113 | int i; |
| 114 | |
| 115 | if ( SDL_numcds < MAX_DRIVES ) { |
| 116 | /* Check to make sure it's not already in our list. |
| 117 | This can happen when we see a drive via symbolic link. |
| 118 | */ |
| 119 | for ( i=0; i<SDL_numcds; ++i ) { |
| 120 | if ( stbuf->st_rdev == SDL_cdmode[i] ) { |
| 121 | #ifdef DEBUG_CDROM |
| 122 | fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); |
| 123 | #endif |
| 124 | return; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | /* Add this drive to our list */ |
| 129 | i = SDL_numcds; |
| 130 | SDL_cdlist[i] = SDL_strdup(drive); |
| 131 | if ( SDL_cdlist[i] == NULL ) { |
| 132 | SDL_OutOfMemory(); |
| 133 | return; |
| 134 | } |
| 135 | SDL_cdmode[i] = stbuf->st_rdev; |
| 136 | ++SDL_numcds; |
| 137 | #ifdef DEBUG_CDROM |
| 138 | fprintf(stderr, "Added CD-ROM drive: %s\n", drive); |
| 139 | #endif |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | static void CheckMounts() |
| 144 | { |
| 145 | char* buffer; |
| 146 | int bufsz; |
| 147 | struct vmount* ptr; |
| 148 | int ret; |
| 149 | |
| 150 | buffer = (char*)SDL_malloc(10); |
| 151 | bufsz = 10; |
| 152 | if ( buffer==NULL ) |
| 153 | { |
| 154 | fprintf(stderr, "Could not allocate 10 bytes in aix/SDL_syscdrom.c:CheckMounts\n" ); |
| 155 | exit ( -10 ); |
| 156 | } |
| 157 | |
| 158 | do |
| 159 | { |
| 160 | /* mntctrl() returns an array of all mounted filesystems */ |
| 161 | ret = mntctl ( MCTL_QUERY, bufsz, buffer ); |
| 162 | if ( ret == 0 ) |
| 163 | { |
| 164 | /* Buffer was too small, realloc. */ |
| 165 | bufsz = *(int*)buffer; /* Required size is in first word. */ |
| 166 | /* (whatever a word is in AIX 4.3.3) */ |
| 167 | /* int seems to be OK in 32bit mode. */ |
| 168 | SDL_free(buffer); |
| 169 | buffer = (char*)SDL_malloc(bufsz); |
| 170 | if ( buffer==NULL ) |
| 171 | { |
| 172 | fprintf(stderr, |
| 173 | "Could not allocate %d bytes in aix/SDL_syscdrom.c:CheckMounts\n", |
| 174 | bufsz ); |
| 175 | exit ( -10 ); |
| 176 | } |
| 177 | } |
| 178 | else if ( ret < 0 ) |
| 179 | { |
| 180 | #ifdef DEBUG_CDROM |
| 181 | fprintf(stderr, "Error reading vmount structures\n"); |
| 182 | #endif |
| 183 | return; |
| 184 | } |
| 185 | } |
| 186 | while ( ret == 0 ); |
| 187 | |
| 188 | #ifdef DEBUG_CDROM |
| 189 | fprintf ( stderr, "Read %d vmount structures\n",ret ); |
| 190 | #endif |
| 191 | ptr = (struct vmount*)buffer; |
| 192 | do |
| 193 | { |
| 194 | switch(ptr->vmt_gfstype) |
| 195 | { |
| 196 | case MNT_CDROM : |
| 197 | { |
| 198 | struct stat stbuf; |
| 199 | char* text; |
| 200 | |
| 201 | text = (char*)ptr + ptr->vmt_data[VMT_OBJECT].vmt_off; |
| 202 | #ifdef DEBUG_CDROM |
| 203 | fprintf(stderr, "Checking mount path: %s mounted on %s\n", |
| 204 | text, (char*)ptr + ptr->vmt_data[VMT_STUB].vmt_off ); |
| 205 | #endif |
| 206 | if ( CheckDrive( text, &stbuf) > 0) |
| 207 | { |
| 208 | AddDrive( text, &stbuf); |
| 209 | } |
| 210 | } |
| 211 | break; |
| 212 | default : |
| 213 | break; |
| 214 | } |
| 215 | ptr = (struct vmount*)((char*)ptr + ptr->vmt_length); |
| 216 | ret--; |
| 217 | } |
| 218 | while ( ret > 0 ); |
| 219 | |
| 220 | free ( buffer ); |
| 221 | } |
| 222 | |
| 223 | static int CheckNonmounts() |
| 224 | { |
| 225 | #ifdef _THREAD_SAFE |
| 226 | AFILE_t fsFile = NULL; |
| 227 | int passNo = 0; |
| 228 | int ret; |
| 229 | struct fstab entry; |
| 230 | struct stat stbuf; |
| 231 | |
| 232 | ret = setfsent_r( &fsFile, &passNo ); |
| 233 | if ( ret != 0 ) return -1; |
| 234 | do |
| 235 | { |
| 236 | ret = getfsent_r ( &entry, &fsFile, &passNo ); |
| 237 | if ( ret == 0 ) { |
| 238 | char* l = SDL_strrchr(entry.fs_spec,'/'); |
| 239 | if ( l != NULL ) { |
| 240 | if ( !SDL_strncmp("cd",++l,2) ) { |
| 241 | #ifdef DEBUG_CDROM |
| 242 | fprintf(stderr, |
| 243 | "Found unmounted CD ROM drive with device name %s\n", |
| 244 | entry.fs_spec); |
| 245 | #endif |
| 246 | if ( CheckDrive( entry.fs_spec, &stbuf) > 0) |
| 247 | { |
| 248 | AddDrive( entry.fs_spec, &stbuf); |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | while ( ret == 0 ); |
| 255 | ret = endfsent_r ( &fsFile ); |
| 256 | if ( ret != 0 ) return -1; |
| 257 | return 0; |
| 258 | #else |
| 259 | struct fstab* entry; |
| 260 | struct stat stbuf; |
| 261 | |
| 262 | setfsent(); |
| 263 | do |
| 264 | { |
| 265 | entry = getfsent(); |
| 266 | if ( entry != NULL ) { |
| 267 | char* l = SDL_strrchr(entry->fs_spec,'/'); |
| 268 | if ( l != NULL ) { |
| 269 | if ( !SDL_strncmp("cd",++l,2) ) { |
| 270 | #ifdef DEBUG_CDROM |
| 271 | fprintf(stderr,"Found unmounted CD ROM drive with device name %s", entry->fs_spec); |
| 272 | #endif |
| 273 | if ( CheckDrive( entry->fs_spec, &stbuf) > 0) |
| 274 | { |
| 275 | AddDrive( entry->fs_spec, &stbuf); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | } |
| 281 | while ( entry != NULL ); |
| 282 | endfsent(); |
| 283 | #endif |
| 284 | } |
| 285 | |
| 286 | int SDL_SYS_CDInit(void) |
| 287 | { |
| 288 | char *SDLcdrom; |
| 289 | struct stat stbuf; |
| 290 | |
| 291 | /* Fill in our driver capabilities */ |
| 292 | SDL_CDcaps.Name = SDL_SYS_CDName; |
| 293 | SDL_CDcaps.Open = SDL_SYS_CDOpen; |
| 294 | SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; |
| 295 | SDL_CDcaps.Status = SDL_SYS_CDStatus; |
| 296 | SDL_CDcaps.Play = SDL_SYS_CDPlay; |
| 297 | SDL_CDcaps.Pause = SDL_SYS_CDPause; |
| 298 | SDL_CDcaps.Resume = SDL_SYS_CDResume; |
| 299 | SDL_CDcaps.Stop = SDL_SYS_CDStop; |
| 300 | SDL_CDcaps.Eject = SDL_SYS_CDEject; |
| 301 | SDL_CDcaps.Close = SDL_SYS_CDClose; |
| 302 | |
| 303 | /* Look in the environment for our CD-ROM drive list */ |
| 304 | SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ |
| 305 | if ( SDLcdrom != NULL ) { |
| 306 | char *cdpath, *delim; |
| 307 | size_t len = SDL_strlen(SDLcdrom)+1; |
| 308 | cdpath = SDL_stack_alloc(char, len); |
| 309 | if ( cdpath != NULL ) { |
| 310 | SDL_strlcpy(cdpath, SDLcdrom, len); |
| 311 | SDLcdrom = cdpath; |
| 312 | do { |
| 313 | delim = SDL_strchr(SDLcdrom, ':'); |
| 314 | if ( delim ) { |
| 315 | *delim++ = '\0'; |
| 316 | } |
| 317 | #ifdef DEBUG_CDROM |
| 318 | fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); |
| 319 | #endif |
| 320 | if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) { |
| 321 | AddDrive(SDLcdrom, &stbuf); |
| 322 | } |
| 323 | if ( delim ) { |
| 324 | SDLcdrom = delim; |
| 325 | } else { |
| 326 | SDLcdrom = NULL; |
| 327 | } |
| 328 | } while ( SDLcdrom ); |
| 329 | SDL_stack_free(cdpath); |
| 330 | } |
| 331 | |
| 332 | /* If we found our drives, there's nothing left to do */ |
| 333 | if ( SDL_numcds > 0 ) { |
| 334 | return(0); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | CheckMounts(); |
| 339 | CheckNonmounts(); |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | /* General ioctl() CD-ROM command function */ |
| 345 | static int SDL_SYS_CDioctl(int id, int command, void *arg) |
| 346 | { |
| 347 | int retval; |
| 348 | |
| 349 | retval = ioctl(id, command, arg); |
| 350 | if ( retval < 0 ) { |
| 351 | SDL_SetError("ioctl() error: %s", strerror(errno)); |
| 352 | } |
| 353 | return retval; |
| 354 | } |
| 355 | |
| 356 | static const char *SDL_SYS_CDName(int drive) |
| 357 | { |
| 358 | return(SDL_cdlist[drive]); |
| 359 | } |
| 360 | |
| 361 | static int SDL_SYS_CDOpen(int drive) |
| 362 | { |
| 363 | int fd; |
| 364 | char* lastsl; |
| 365 | char* cdromname; |
| 366 | size_t len; |
| 367 | |
| 368 | /* |
| 369 | * We found /dev/cd? drives and that is in our list. But we can |
| 370 | * open only the /dev/rcd? versions of those devices for Audio CD. |
| 371 | */ |
| 372 | len = SDL_strlen(SDL_cdlist[drive])+2; |
| 373 | cdromname = (char*)SDL_malloc(len); |
| 374 | SDL_strlcpy(cdromname,SDL_cdlist[drive],len); |
| 375 | lastsl = SDL_strrchr(cdromname,'/'); |
| 376 | if (lastsl) { |
| 377 | *lastsl = 0; |
| 378 | SDL_strlcat(cdromname,"/r",len); |
| 379 | lastsl = SDL_strrchr(SDL_cdlist[drive],'/'); |
| 380 | if (lastsl) { |
| 381 | lastsl++; |
| 382 | SDL_strlcat(cdromname,lastsl,len); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | #ifdef DEBUG_CDROM |
| 387 | fprintf(stderr, "Should open drive %s, opening %s\n", SDL_cdlist[drive], cdromname); |
| 388 | #endif |
| 389 | |
| 390 | /* |
| 391 | * Use exclusive access. Don't use SC_DIAGNOSTICS as xmcd does because they |
| 392 | * require root priviledges, and we don't want that. SC_SINGLE provides |
| 393 | * exclusive access with less trouble. |
| 394 | */ |
| 395 | fd = openx(cdromname, O_RDONLY, NULL, SC_SINGLE); |
| 396 | if ( fd < 0 ) |
| 397 | { |
| 398 | #ifdef DEBUG_CDROM |
| 399 | fprintf(stderr, "Could not open drive %s (%s)\n", cdromname, strerror(errno)); |
| 400 | #endif |
| 401 | } |
| 402 | else |
| 403 | { |
| 404 | struct mode_form_op cdMode; |
| 405 | int ret; |
| 406 | #ifdef DEBUG_CDROM |
| 407 | cdMode.action = CD_GET_MODE; |
| 408 | ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); |
| 409 | if ( ret < 0 ) { |
| 410 | fprintf(stderr, |
| 411 | "Could not get drive mode for %s (%s)\n", |
| 412 | cdromname, strerror(errno)); |
| 413 | } else { |
| 414 | switch(cdMode.cd_mode_form) { |
| 415 | case CD_MODE1 : |
| 416 | fprintf(stderr, |
| 417 | "Drive mode for %s is %s\n", |
| 418 | cdromname, "CD-ROM Data Mode 1"); |
| 419 | break; |
| 420 | case CD_MODE2_FORM1 : |
| 421 | fprintf(stderr, |
| 422 | "Drive mode for %s is %s\n", |
| 423 | cdromname, "CD-ROM XA Data Mode 2 Form 1"); |
| 424 | break; |
| 425 | case CD_MODE2_FORM2 : |
| 426 | fprintf(stderr, |
| 427 | "Drive mode for %s is %s\n", |
| 428 | cdromname, "CD-ROM XA Data Mode 2 Form 2"); |
| 429 | break; |
| 430 | case CD_DA : |
| 431 | fprintf(stderr, |
| 432 | "Drive mode for %s is %s\n", |
| 433 | cdromname, "CD-DA"); |
| 434 | break; |
| 435 | default : |
| 436 | fprintf(stderr, |
| 437 | "Drive mode for %s is %s\n", |
| 438 | cdromname, "unknown"); |
| 439 | break; |
| 440 | } |
| 441 | } |
| 442 | #endif |
| 443 | |
| 444 | cdMode.action = CD_CHG_MODE; |
| 445 | cdMode.cd_mode_form = CD_DA; |
| 446 | ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); |
| 447 | if ( ret < 0 ) { |
| 448 | #ifdef DEBUG_CDROM |
| 449 | fprintf(stderr, |
| 450 | "Could not set drive mode for %s (%s)\n", |
| 451 | cdromname, strerror(errno)); |
| 452 | #endif |
| 453 | SDL_SetError("ioctl() error: Could not set CD drive mode, %s", |
| 454 | strerror(errno)); |
| 455 | } else { |
| 456 | #ifdef DEBUG_CDROM |
| 457 | fprintf(stderr, |
| 458 | "Drive mode for %s set to CD_DA\n", |
| 459 | cdromname); |
| 460 | #endif |
| 461 | } |
| 462 | } |
| 463 | SDL_free(cdromname); |
| 464 | return fd; |
| 465 | } |
| 466 | |
| 467 | static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) |
| 468 | { |
| 469 | struct cd_audio_cmd cmd; |
| 470 | struct cd_audio_cmd entry; |
| 471 | int i; |
| 472 | int okay; |
| 473 | |
| 474 | cmd.audio_cmds = CD_TRK_INFO_AUDIO; |
| 475 | cmd.msf_flag = FALSE; |
| 476 | if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { |
| 477 | return -1; |
| 478 | } |
| 479 | |
| 480 | okay = 0; |
| 481 | cdrom->numtracks = cmd.indexing.track_index.last_track |
| 482 | - cmd.indexing.track_index.first_track+1; |
| 483 | if ( cdrom->numtracks > SDL_MAX_TRACKS ) { |
| 484 | cdrom->numtracks = SDL_MAX_TRACKS; |
| 485 | } |
| 486 | |
| 487 | /* Read all the track TOC entries */ |
| 488 | for ( i=0; i<=cdrom->numtracks; ++i ) { |
| 489 | if ( i == cdrom->numtracks ) { |
| 490 | cdrom->track[i].id = 0xAA;; |
| 491 | } else { |
| 492 | cdrom->track[i].id = cmd.indexing.track_index.first_track+i; |
| 493 | } |
| 494 | entry.audio_cmds = CD_GET_TRK_MSF; |
| 495 | entry.indexing.track_msf.track = cdrom->track[i].id; |
| 496 | if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &entry) < 0 ) { |
| 497 | break; |
| 498 | } else { |
| 499 | cdrom->track[i].type = 0; /* don't know how to detect 0x04 data track */ |
| 500 | cdrom->track[i].offset = MSF_TO_FRAMES( |
| 501 | entry.indexing.track_msf.mins, |
| 502 | entry.indexing.track_msf.secs, |
| 503 | entry.indexing.track_msf.frames); |
| 504 | cdrom->track[i].length = 0; |
| 505 | if ( i > 0 ) { |
| 506 | cdrom->track[i-1].length = cdrom->track[i].offset |
| 507 | - cdrom->track[i-1].offset; |
| 508 | } |
| 509 | } |
| 510 | } |
| 511 | if ( i == (cdrom->numtracks+1) ) { |
| 512 | okay = 1; |
| 513 | } |
| 514 | return(okay ? 0 : -1); |
| 515 | } |
| 516 | |
| 517 | /* Get CD-ROM status */ |
| 518 | static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) |
| 519 | { |
| 520 | CDstatus status; |
| 521 | struct cd_audio_cmd cmd; |
| 522 | cmd.audio_cmds = CD_INFO_AUDIO; |
| 523 | |
| 524 | if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { |
| 525 | #ifdef DEBUG_CDROM |
| 526 | fprintf(stderr, "ioctl failed in SDL_SYS_CDStatus (%s)\n", SDL_GetError()); |
| 527 | #endif |
| 528 | status = CD_ERROR; |
| 529 | } else { |
| 530 | switch (cmd.status) { |
| 531 | case CD_NO_AUDIO: |
| 532 | case CD_COMPLETED: |
| 533 | status = CD_STOPPED; |
| 534 | break; |
| 535 | case CD_PLAY_AUDIO: |
| 536 | status = CD_PLAYING; |
| 537 | break; |
| 538 | case CD_PAUSE_AUDIO: |
| 539 | status = CD_PAUSED; |
| 540 | break; |
| 541 | case CD_NOT_VALID: |
| 542 | #ifdef DEBUG_CDROM |
| 543 | fprintf(stderr, "cdStatus failed with CD_NOT_VALID\n"); |
| 544 | #endif |
| 545 | status = CD_ERROR; |
| 546 | break; |
| 547 | case CD_STATUS_ERROR: |
| 548 | #ifdef DEBUG_CDROM |
| 549 | fprintf(stderr, "cdStatus failed with CD_STATUS_ERROR\n"); |
| 550 | #endif |
| 551 | status = CD_ERROR; |
| 552 | break; |
| 553 | default: |
| 554 | #ifdef DEBUG_CDROM |
| 555 | fprintf(stderr, "cdStatus failed with unknown error\n"); |
| 556 | #endif |
| 557 | status = CD_ERROR; |
| 558 | break; |
| 559 | } |
| 560 | } |
| 561 | if ( position ) { |
| 562 | if ( status == CD_PLAYING || (status == CD_PAUSED) ) { |
| 563 | *position = MSF_TO_FRAMES( cmd.indexing.info_audio.current_mins, |
| 564 | cmd.indexing.info_audio.current_secs, |
| 565 | cmd.indexing.info_audio.current_frames); |
| 566 | } else { |
| 567 | *position = 0; |
| 568 | } |
| 569 | } |
| 570 | return status; |
| 571 | } |
| 572 | |
| 573 | /* Start play */ |
| 574 | static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) |
| 575 | { |
| 576 | struct cd_audio_cmd cmd; |
| 577 | |
| 578 | /* |
| 579 | * My CD Rom is muted by default. I think I read that this is new with |
| 580 | * AIX 4.3. SDL does not change the volume, so I need a kludge. Maybe |
| 581 | * its better to do this elsewhere? |
| 582 | */ |
| 583 | cmd.audio_cmds = CD_PLAY_AUDIO | CD_SET_VOLUME; |
| 584 | cmd.msf_flag = TRUE; |
| 585 | FRAMES_TO_MSF(start, |
| 586 | &cmd.indexing.msf.first_mins, |
| 587 | &cmd.indexing.msf.first_secs, |
| 588 | &cmd.indexing.msf.first_frames); |
| 589 | FRAMES_TO_MSF(start+length, |
| 590 | &cmd.indexing.msf.last_mins, |
| 591 | &cmd.indexing.msf.last_secs, |
| 592 | &cmd.indexing.msf.last_frames); |
| 593 | cmd.volume_type = CD_VOLUME_ALL; |
| 594 | cmd.all_channel_vol = 255; /* This is a uchar. What is a good value? No docu! */ |
| 595 | cmd.out_port_0_sel = CD_AUDIO_CHNL_0; |
| 596 | cmd.out_port_1_sel = CD_AUDIO_CHNL_1; |
| 597 | cmd.out_port_2_sel = CD_AUDIO_CHNL_2; |
| 598 | cmd.out_port_3_sel = CD_AUDIO_CHNL_3; |
| 599 | |
| 600 | #ifdef DEBUG_CDROM |
| 601 | fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", |
| 602 | cmd.indexing.msf.first_mins, |
| 603 | cmd.indexing.msf.first_secs, |
| 604 | cmd.indexing.msf.first_frames, |
| 605 | cmd.indexing.msf.last_mins, |
| 606 | cmd.indexing.msf.last_secs, |
| 607 | cmd.indexing.msf.last_frames); |
| 608 | #endif |
| 609 | return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); |
| 610 | } |
| 611 | |
| 612 | /* Pause play */ |
| 613 | static int SDL_SYS_CDPause(SDL_CD *cdrom) |
| 614 | { |
| 615 | struct cd_audio_cmd cmd; |
| 616 | cmd.audio_cmds = CD_PAUSE_AUDIO; |
| 617 | return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); |
| 618 | } |
| 619 | |
| 620 | /* Resume play */ |
| 621 | static int SDL_SYS_CDResume(SDL_CD *cdrom) |
| 622 | { |
| 623 | struct cd_audio_cmd cmd; |
| 624 | cmd.audio_cmds = CD_RESUME_AUDIO; |
| 625 | return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); |
| 626 | } |
| 627 | |
| 628 | /* Stop play */ |
| 629 | static int SDL_SYS_CDStop(SDL_CD *cdrom) |
| 630 | { |
| 631 | struct cd_audio_cmd cmd; |
| 632 | cmd.audio_cmds = CD_STOP_AUDIO; |
| 633 | return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); |
| 634 | } |
| 635 | |
| 636 | /* Eject the CD-ROM */ |
| 637 | static int SDL_SYS_CDEject(SDL_CD *cdrom) |
| 638 | { |
| 639 | return(SDL_SYS_CDioctl(cdrom->id, DKEJECT, 0)); |
| 640 | } |
| 641 | |
| 642 | /* Close the CD-ROM handle */ |
| 643 | static void SDL_SYS_CDClose(SDL_CD *cdrom) |
| 644 | { |
| 645 | close(cdrom->id); |
| 646 | } |
| 647 | |
| 648 | void SDL_SYS_CDQuit(void) |
| 649 | { |
| 650 | int i; |
| 651 | |
| 652 | if ( SDL_numcds > 0 ) { |
| 653 | for ( i=0; i<SDL_numcds; ++i ) { |
| 654 | SDL_free(SDL_cdlist[i]); |
| 655 | } |
| 656 | SDL_numcds = 0; |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | #endif /* SDL_CDROM_AIX */ |