misc/cdrom.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2 /*
   3  * Main file for CD-ROM support
   4  *
   5  * Copyright 1994 Martin Ayotte
   6  * Copyright 1999 Eric Pouech
   7  * Copyright 2000 Andreas Mohr
   8  */
   9
  10 #include "config.h"
  11
  12 #include <errno.h>
  13 #include <string.h>
  14 #include <fcntl.h>
  15 #include <sys/ioctl.h>
  16 #include "winnls.h"
  17 #include "cdrom.h"
  18 #include "drive.h"
  19 #include "debugtools.h"
  20 #include "winbase.h"
  21
  22 DEFAULT_DEBUG_CHANNEL(cdrom);
  23
  24 #define MAX_CDAUDIO_TRACKS      256
  25
  26 #define CDROM_OPEN(wcda,parentdev) \
  27     (((parentdev) == -1) ? CDROM_OpenDev(wcda) : (parentdev))
  28
  29 #define CDROM_CLOSE(dev,parentdev) \
  30     (((parentdev) == -1) ? CDROM_CloseDev(dev) : 0)
  31
  32 /**************************************************************************
  33  *                              CDROM_Open                      [internal]
  34  *
  35  * drive = 0, 1, ...
  36  *      or -1 (figure it out)
  37  */
  38 int     CDROM_Open(WINE_CDAUDIO* wcda, int drive)
  39 {
  40     int i, dev;
  41     BOOL avail = FALSE;
  42
  43     if (drive == -1)
  44     {
  45         for (i=0; i < MAX_DOS_DRIVES; i++)
  46             if (DRIVE_GetType(i) == TYPE_CDROM)
  47             {
  48                 drive = i;
  49                 avail = TRUE;
  50                 break;
  51             }
  52     }
  53     else
  54         avail = TRUE;
  55
  56     if (avail == FALSE)
  57     {
  58         WARN("No CD-ROM #%d found !\n", drive);
  59         return -1;
  60     }
  61     if ((wcda->devname = DRIVE_GetDevice(drive)) == NULL)
  62 {
  63         WARN("No device entry for CD-ROM #%d (drive %c:) found !\n",
  64                 drive, 'A' + drive);
  65         return -1;
  66     }
  67
  68     /* Test whether device can be opened */
  69     dev = CDROM_OpenDev(wcda);
  70     if (dev == -1)
  71         return -1;
  72     else
  73         CDROM_CloseDev(dev);
  74
  75     wcda->cdaMode = WINE_CDA_OPEN;      /* to force reading tracks info */
  76     wcda->nCurTrack = 0;
  77     wcda->nTracks = 0;
  78     wcda->dwFirstFrame = 0;
  79     wcda->dwLastFrame = 0;
  80     wcda->lpdwTrackLen = NULL;
  81     wcda->lpdwTrackPos = NULL;
  82     wcda->lpbTrackFlags = NULL;
  83     TRACE("opened drive %c: (device %s)\n", 'A' + drive, wcda->devname);
  84     return 0;
  85 }
  86
  87 /**************************************************************************
  88  *                              CDROM_OpenDev                   [internal]
  89  *
  90  */
  91 int     CDROM_OpenDev(WINE_CDAUDIO* wcda)
  92 {
  93     int dev = open(wcda->devname, O_RDONLY | O_NONBLOCK, 0);
  94     if (dev == -1)
  95         WARN("can't open device '%s'! (%s)\n", wcda->devname, strerror(errno));
  96
  97     TRACE("-> %d\n", dev);
  98     return dev;
  99 }
 100
 101 /**************************************************************************
 102  *                              CDROM_GetMediaType              [internal]
 103  */
 104 int     CDROM_GetMediaType(WINE_CDAUDIO* wcda, int parentdev)
 105 {
 106     int type = -1;
 107 #ifdef linux
 108     int dev = CDROM_OPEN( wcda, parentdev );
 109     type = ioctl(dev, CDROM_DISC_STATUS);
 110     CDROM_CLOSE( dev, parentdev );
 111 #endif
 112     TRACE("-> %d\n", type);
 113     return type;
 114 }
 115
 116 /**************************************************************************
 117  *                              CDROM_Close                     [internal]
 118  */
 119 int     CDROM_CloseDev(int dev)
 120 {
 121     TRACE("%d\n", dev);
 122     return close(dev);
 123 }
 124
 125 /**************************************************************************
 126  *                              CDROM_Close                     [internal]
 127  */
 128 int     CDROM_Close(WINE_CDAUDIO* wcda)
 129 {
 130 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 131     if (wcda->lpdwTrackLen != NULL) free(wcda->lpdwTrackLen);
 132     if (wcda->lpdwTrackPos != NULL) free(wcda->lpdwTrackPos);
 133     if (wcda->lpbTrackFlags != NULL) free(wcda->lpbTrackFlags);
 134     TRACE("%s\n", wcda->devname);
 135     return 0;
 136 #else
 137     return -1;
 138 #endif
 139 }
 140
 141 /**************************************************************************
 142  *                              CDROM_Get_UPC                   [internal]
 143  *
 144  * upc has to be 14 bytes long
 145  */
 146 int CDROM_Get_UPC(WINE_CDAUDIO* wcda, LPSTR upc, int parentdev)
 147 {
 148 #ifdef linux
 149     struct cdrom_mcn mcn;
 150     int dev = CDROM_OPEN( wcda, parentdev );
 151     int status = ioctl(dev, CDROM_GET_MCN, &mcn);
 152     CDROM_CLOSE( dev, parentdev );
 153     if (status)
 154 {
 155         ERR("ioctl() failed with code %d\n",status);
 156         return -1;
 157     }
 158     strcpy(upc, mcn.medium_catalog_number);
 159     return 0;
 160 #else
 161     return -1;
 162 #endif
 163 }
 164
 165 /**************************************************************************
 166  *                              CDROM_Audio_GetNumberOfTracks   [internal]
 167  */
 168 UINT16 CDROM_Audio_GetNumberOfTracks(WINE_CDAUDIO* wcda, int parentdev)
 169 {
 170     UINT16 ret = (UINT16)-1;
 171 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 172 #ifdef linux
 173     struct cdrom_tochdr         hdr;
 174 #else
 175     struct ioc_toc_header       hdr;
 176 #endif
 177     int dev = CDROM_OPEN( wcda, parentdev );
 178
 179     if (wcda->nTracks == 0) {
 180 #ifdef linux
 181         if (ioctl(dev, CDROMREADTOCHDR, &hdr))
 182 #else
 183         if (ioctl(dev, CDIOREADTOCHEADER, &hdr))
 184 #endif
 185         {
 186             WARN("(%p) -- Error occurred (%s)!\n", wcda, strerror(errno));
 187             goto end;
 188         }
 189 #ifdef linux
 190         wcda->nFirstTrack = hdr.cdth_trk0;
 191         wcda->nLastTrack  = hdr.cdth_trk1;
 192 #else
 193         wcda->nFirstTrack = hdr.starting_track;
 194         wcda->nLastTrack  = hdr.ending_track;
 195 #endif
 196         wcda->nTracks = wcda->nLastTrack - wcda->nFirstTrack + 1;
 197     }
 198     ret = wcda->nTracks;
 199 end:
 200     CDROM_CLOSE( dev, parentdev );
 201 #endif
 202     return ret;
 203 }
 204
 205 /**************************************************************************
 206  *                      CDROM_Audio_GetTracksInfo               [internal]
 207  */
 208 BOOL CDROM_Audio_GetTracksInfo(WINE_CDAUDIO* wcda, int parentdev)
 209 {
 210     BOOL ret = FALSE;
 211 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 212     int         i, length;
 213     int         start, last_start = 0;
 214     int         total_length = 0;
 215 #ifdef linux
 216     struct cdrom_tocentry       entry;
 217 #else
 218     struct ioc_read_toc_entry   entry;
 219     struct cd_toc_entry         toc_buffer;
 220 #endif
 221     int dev = CDROM_OPEN( wcda, parentdev );
 222
 223     if (wcda->nTracks == 0) {
 224         if (CDROM_Audio_GetNumberOfTracks(wcda, dev) == (WORD)-1)
 225         goto end;
 226     }
 227     TRACE("nTracks=%u\n", wcda->nTracks);
 228
 229     if (wcda->lpdwTrackLen != NULL)
 230         free(wcda->lpdwTrackLen);
 231     wcda->lpdwTrackLen = (LPDWORD)malloc((wcda->nTracks + 1) * sizeof(DWORD));
 232     if (wcda->lpdwTrackPos != NULL)
 233         free(wcda->lpdwTrackPos);
 234     wcda->lpdwTrackPos = (LPDWORD)malloc((wcda->nTracks + 1) * sizeof(DWORD));
 235     if (wcda->lpbTrackFlags != NULL)
 236         free(wcda->lpbTrackFlags);
 237     wcda->lpbTrackFlags = (LPBYTE)malloc((wcda->nTracks + 1) * sizeof(BYTE));
 238     if (wcda->lpdwTrackLen == NULL || wcda->lpdwTrackPos == NULL ||
 239         wcda->lpbTrackFlags == NULL) {
 240         WARN("error allocating track table !\n");
 241         goto end;
 242     }
 243     memset(wcda->lpdwTrackLen, 0, (wcda->nTracks + 1) * sizeof(DWORD));
 244     memset(wcda->lpdwTrackPos, 0, (wcda->nTracks + 1) * sizeof(DWORD));
 245     memset(wcda->lpbTrackFlags, 0, (wcda->nTracks + 1) * sizeof(BYTE));
 246     for (i = 0; i <= wcda->nTracks; i++) {
 247         if (i == wcda->nTracks)
 248 #ifdef linux
 249             entry.cdte_track = CDROM_LEADOUT;
 250 #else
 251 #define LEADOUT 0xaa
 252         entry.starting_track = LEADOUT; /* FIXME */
 253 #endif
 254         else
 255 #ifdef linux
 256         entry.cdte_track = i + 1;
 257 #else
 258         entry.starting_track = i + 1;
 259 #endif
 260 #ifdef linux
 261         entry.cdte_format = CDROM_MSF;
 262 #else
 263         bzero((char *)&toc_buffer, sizeof(toc_buffer));
 264         entry.address_format = CD_MSF_FORMAT;
 265         entry.data_len = sizeof(toc_buffer);
 266         entry.data = &toc_buffer;
 267 #endif
 268 #ifdef linux
 269         if (ioctl(dev, CDROMREADTOCENTRY, &entry))
 270 #else
 271         if (ioctl(dev, CDIOREADTOCENTRYS, &entry))
 272 #endif
 273         {
 274             WARN("error read entry (%s)\n", strerror(errno));
 275             /* update status according to new status */
 276             CDROM_Audio_GetCDStatus(wcda, dev);
 277
 278             goto end;
 279         }
 280 #ifdef linux
 281         start = CDFRAMES_PERSEC * (SECONDS_PERMIN *
 282                                    entry.cdte_addr.msf.minute + entry.cdte_addr.msf.second) +
 283             entry.cdte_addr.msf.frame;
 284 #else
 285         start = CDFRAMES_PERSEC * (SECONDS_PERMIN *
 286                                    toc_buffer.addr.msf.minute + toc_buffer.addr.msf.second) +
 287             toc_buffer.addr.msf.frame;
 288 #endif
 289         if (i == 0) {
 290             last_start = start;
 291             wcda->dwFirstFrame = start;
 292             TRACE("dwFirstOffset=%u\n", start);
 293         } else {
 294             length = start - last_start;
 295             last_start = start;
 296             start = last_start - length;
 297             total_length += length;
 298             wcda->lpdwTrackLen[i - 1] = length;
 299             wcda->lpdwTrackPos[i - 1] = start;
 300             TRACE("track #%u start=%u len=%u\n", i, start, length);
 301         }
 302 #ifdef linux
 303         wcda->lpbTrackFlags[i] =
 304             (entry.cdte_adr << 4) | (entry.cdte_ctrl & 0x0f);
 305 #else
 306         wcda->lpbTrackFlags[i] =
 307             (toc_buffer.addr_type << 4) | (toc_buffer.control & 0x0f);
 308 #endif
 309         TRACE("track #%u flags=%02x\n", i + 1, wcda->lpbTrackFlags[i]);
 310     }
 311     wcda->dwLastFrame = last_start;
 312     TRACE("total_len=%u\n", total_length);
 313     ret = TRUE;
 314 end:
 315     CDROM_CLOSE( dev, parentdev );
 316 #endif
 317     return ret;
 318 }
 319
 320 /**************************************************************************
 321  *                              CDROM_Audio_GetCDStatus         [internal]
 322  */
 323 BOOL CDROM_Audio_GetCDStatus(WINE_CDAUDIO* wcda, int parentdev)
 324 {
 325 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 326     int oldmode = wcda->cdaMode;
 327     int ret = FALSE;
 328     int dev = CDROM_OPEN( wcda, parentdev );
 329 #ifdef linux
 330     wcda->sc.cdsc_format = CDROM_MSF;
 331 #else
 332     struct ioc_read_subchannel  read_sc;
 333
 334     read_sc.address_format = CD_MSF_FORMAT;
 335     read_sc.data_format    = CD_CURRENT_POSITION;
 336     read_sc.track          = 0;
 337     read_sc.data_len       = sizeof(wcda->sc);
 338     read_sc.data           = (struct cd_sub_channel_info *)&wcda->sc;
 339 #endif
 340 #ifdef linux
 341     if (ioctl(dev, CDROMSUBCHNL, &wcda->sc))
 342 #else
 343     if (ioctl(dev, CDIOCREADSUBCHANNEL, &read_sc))
 344 #endif
 345     {
 346         TRACE("opened or no_media (%s)!\n", strerror(errno));
 347         wcda->cdaMode = WINE_CDA_OPEN; /* was NOT_READY */
 348         goto end;
 349     }
 350     switch (
 351 #ifdef linux
 352             wcda->sc.cdsc_audiostatus
 353 #else
 354             wcda->sc.header.audio_status
 355 #endif
 356             ) {
 357 #ifdef linux
 358     case CDROM_AUDIO_INVALID:
 359 #else
 360     case CD_AS_AUDIO_INVALID:
 361 #endif
 362         WARN("device doesn't support status.\n");
 363         wcda->cdaMode = WINE_CDA_DONTKNOW;
 364         break;
 365 #ifdef linux
 366     case CDROM_AUDIO_NO_STATUS:
 367 #else
 368     case CD_AS_NO_STATUS:
 369 #endif
 370         wcda->cdaMode = WINE_CDA_STOP;
 371         TRACE("WINE_CDA_STOP !\n");
 372         break;
 373 #ifdef linux
 374     case CDROM_AUDIO_PLAY:
 375 #else
 376     case CD_AS_PLAY_IN_PROGRESS:
 377 #endif
 378         wcda->cdaMode = WINE_CDA_PLAY;
 379         break;
 380 #ifdef linux
 381     case CDROM_AUDIO_PAUSED:
 382 #else
 383     case CD_AS_PLAY_PAUSED:
 384 #endif
 385         wcda->cdaMode = WINE_CDA_PAUSE;
 386         TRACE("WINE_CDA_PAUSE !\n");
 387         break;
 388     default:
 389 #ifdef linux
 390         TRACE("status=%02X !\n",
 391               wcda->sc.cdsc_audiostatus);
 392 #else
 393         TRACE("status=%02X !\n",
 394               wcda->sc.header.audio_status);
 395 #endif
 396     }
 397 #ifdef linux
 398     wcda->nCurTrack = wcda->sc.cdsc_trk;
 399     wcda->dwCurFrame =
 400         CDFRAMES_PERMIN * wcda->sc.cdsc_absaddr.msf.minute +
 401         CDFRAMES_PERSEC * wcda->sc.cdsc_absaddr.msf.second +
 402         wcda->sc.cdsc_absaddr.msf.frame;
 403 #else
 404     wcda->nCurTrack = wcda->sc.what.position.track_number;
 405     wcda->dwCurFrame =
 406         CDFRAMES_PERMIN * wcda->sc.what.position.absaddr.msf.minute +
 407         CDFRAMES_PERSEC * wcda->sc.what.position.absaddr.msf.second +
 408         wcda->sc.what.position.absaddr.msf.frame;
 409 #endif
 410 #ifdef linux
 411     TRACE("%02u-%02u:%02u:%02u\n",
 412           wcda->sc.cdsc_trk,
 413           wcda->sc.cdsc_absaddr.msf.minute,
 414           wcda->sc.cdsc_absaddr.msf.second,
 415           wcda->sc.cdsc_absaddr.msf.frame);
 416 #else
 417     TRACE("%02u-%02u:%02u:%02u\n",
 418           wcda->sc.what.position.track_number,
 419           wcda->sc.what.position.absaddr.msf.minute,
 420           wcda->sc.what.position.absaddr.msf.second,
 421           wcda->sc.what.position.absaddr.msf.frame);
 422 #endif
 423
 424     if (oldmode != wcda->cdaMode && oldmode == WINE_CDA_OPEN) {
 425         if (!CDROM_Audio_GetTracksInfo(wcda, dev)) {
 426             WARN("error updating TracksInfo !\n");
 427             goto end;
 428         }
 429     }
 430     if (wcda->cdaMode != WINE_CDA_OPEN)
 431         ret = TRUE;
 432 end:
 433     CDROM_CLOSE( dev, parentdev );
 434     return ret;
 435 #else
 436     return FALSE;
 437 #endif
 438 }
 439
 440 /**************************************************************************
 441  *                              CDROM_Audio_Play                [internal]
 442  */
 443 int     CDROM_Audio_Play(WINE_CDAUDIO* wcda, DWORD start, DWORD end, int parentdev)
 444 {
 445     int ret = -1;
 446 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 447 #ifdef linux
 448     struct      cdrom_msf       msf;
 449 #else
 450     struct      ioc_play_msf    msf;
 451 #endif
 452     int dev = CDROM_OPEN( wcda, parentdev );
 453
 454 #ifdef linux
 455     msf.cdmsf_min0 = start / CDFRAMES_PERMIN;
 456     msf.cdmsf_sec0 = (start % CDFRAMES_PERMIN) / CDFRAMES_PERSEC;
 457     msf.cdmsf_frame0 = start % CDFRAMES_PERSEC;
 458     msf.cdmsf_min1 = end / CDFRAMES_PERMIN;
 459     msf.cdmsf_sec1 = (end % CDFRAMES_PERMIN) / CDFRAMES_PERSEC;
 460     msf.cdmsf_frame1 = end % CDFRAMES_PERSEC;
 461 #else
 462     msf.start_m     = start / CDFRAMES_PERMIN;
 463     msf.start_s     = (start % CDFRAMES_PERMIN) / CDFRAMES_PERSEC;
 464     msf.start_f     = start % CDFRAMES_PERSEC;
 465     msf.end_m       = end / CDFRAMES_PERMIN;
 466     msf.end_s       = (end % CDFRAMES_PERMIN) / CDFRAMES_PERSEC;
 467     msf.end_f       = end % CDFRAMES_PERSEC;
 468 #endif
 469 #ifdef linux
 470     if (ioctl(dev, CDROMSTART))
 471 #else
 472     if (ioctl(dev, CDIOCSTART, NULL))
 473 #endif
 474     {
 475         WARN("motor doesn't start !\n");
 476         goto end;
 477     }
 478 #ifdef linux
 479     if (ioctl(dev, CDROMPLAYMSF, &msf))
 480 #else
 481     if (ioctl(dev, CDIOCPLAYMSF, &msf))
 482 #endif
 483     {
 484         WARN("device doesn't play !\n");
 485         goto end;
 486     }
 487 #ifdef linux
 488     TRACE("msf = %d:%d:%d %d:%d:%d\n",
 489           msf.cdmsf_min0, msf.cdmsf_sec0, msf.cdmsf_frame0,
 490           msf.cdmsf_min1, msf.cdmsf_sec1, msf.cdmsf_frame1);
 491 #else
 492     TRACE("msf = %d:%d:%d %d:%d:%d\n",
 493           msf.start_m, msf.start_s, msf.start_f,
 494           msf.end_m,   msf.end_s,   msf.end_f);
 495 #endif
 496     ret = 0;
 497 end:
 498     CDROM_CLOSE( dev, parentdev );
 499 #endif
 500     return ret;
 501 }
 502
 503 /**************************************************************************
 504  *                              CDROM_Audio_Stop                [internal]
 505  */
 506 int     CDROM_Audio_Stop(WINE_CDAUDIO* wcda, int parentdev)
 507 {
 508     int ret = -1;
 509 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 510     int dev = CDROM_OPEN( wcda, parentdev );
 511 #ifdef linux
 512     ret = ioctl(dev, CDROMSTOP);
 513 #else
 514     ret = ioctl(dev, CDIOCSTOP, NULL);
 515 #endif
 516     CDROM_CLOSE( dev, parentdev );
 517 #endif
 518     return ret;
 519 }
 520
 521 /**************************************************************************
 522  *                              CDROM_Audio_Pause               [internal]
 523  */
 524 int     CDROM_Audio_Pause(WINE_CDAUDIO* wcda, int pauseOn, int parentdev)
 525 {
 526     int ret = -1;
 527 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 528     int dev = CDROM_OPEN( wcda, parentdev );
 529 #ifdef linux
 530     ret = ioctl(dev, pauseOn ? CDROMPAUSE : CDROMRESUME);
 531 #else
 532     ret = ioctl(dev, pauseOn ? CDIOCPAUSE : CDIOCRESUME, NULL);
 533 #endif
 534     CDROM_CLOSE( dev, parentdev );
 535 #endif
 536     return ret;
 537 }
 538
 539 /**************************************************************************
 540  *                              CDROM_Audio_Seek                [internal]
 541  */
 542 int     CDROM_Audio_Seek(WINE_CDAUDIO* wcda, DWORD at, int parentdev)
 543 {
 544     int ret = -1;
 545 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 546     int dev = CDROM_OPEN( wcda, parentdev );
 547 #ifdef linux
 548     struct cdrom_msf0           msf;
 549     msf.minute = at / CDFRAMES_PERMIN;
 550     msf.second = (at % CDFRAMES_PERMIN) / CDFRAMES_PERSEC;
 551     msf.frame  = at % CDFRAMES_PERSEC;
 552
 553     ret = ioctl(dev, CDROMSEEK, &msf);
 554 #else
 555    /* FIXME: the current end for play is lost
 556     * use end of CD ROM instead
 557     */
 558    FIXME("Could a BSD expert implement the seek function ?\n");
 559    CDROM_Audio_Play(wcda, at, wcda->lpdwTrackPos[wcda->nTracks] + wcda->lpdwTrackLen[wcda->nTracks], dev);
 560 #endif
 561     CDROM_CLOSE( dev, parentdev );
 562 #endif
 563     return ret;
 564 }
 565
 566 /**************************************************************************
 567  *                              CDROM_SetDoor                   [internal]
 568  */
 569 int     CDROM_SetDoor(WINE_CDAUDIO* wcda, int open, int parentdev)
 570 {
 571     int ret = -1;
 572 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 573     int dev = CDROM_OPEN( wcda, parentdev );
 574
 575     TRACE("%d\n", open);
 576 #ifdef linux
 577     if (open) {
 578         ret = ioctl(dev, CDROMEJECT);
 579     } else {
 580         ret = ioctl(dev, CDROMCLOSETRAY);
 581     }
 582 #else
 583     ret = (ioctl(dev, CDIOCALLOW, NULL)) ||
 584         (ioctl(dev, open ? CDIOCEJECT : CDIOCCLOSE, NULL)) ||
 585         (ioctl(dev, CDIOCPREVENT, NULL));
 586 #endif
 587     wcda->nTracks = 0;
 588     if (ret == -1)
 589         WARN("failed (%s)\n", strerror(errno));
 590     CDROM_CLOSE( dev, parentdev );
 591 #endif
 592     return ret;
 593 }
 594
 595 /**************************************************************************
 596  *                              CDROM_Reset                     [internal]
 597  */
 598 int     CDROM_Reset(WINE_CDAUDIO* wcda, int parentdev)
 599 {
 600     int ret = -1;
 601 #if defined(linux) || defined(__FreeBSD__) || defined(__NetBSD__)
 602     int dev = CDROM_OPEN( wcda, parentdev );
 603 #ifdef linux
 604     ret = ioctl(dev, CDROMRESET);
 605 #else
 606     ret = ioctl(dev, CDIOCRESET, NULL);
 607 #endif
 608     CDROM_CLOSE( dev, parentdev );
 609 #endif
 610     return ret;
 611 }
 612
 613 WORD CDROM_Data_FindBestVoldesc(int fd)
 614 {
 615     BYTE cur_vd_type, max_vd_type = 0;
 616     unsigned int offs, best_offs = 0;
 617
 618     for (offs=0x8000; offs <= 0x9800; offs += 0x800)
 619     {
 620         lseek(fd, offs, SEEK_SET);
 621         read(fd, &cur_vd_type, 1);
 622         if (cur_vd_type == 0xff) /* voldesc set terminator */
 623             break;
 624         if (cur_vd_type > max_vd_type)
 625         {
 626             max_vd_type = cur_vd_type;
 627             best_offs = offs;
 628         }
 629     }
 630     return best_offs;
 631 }
 632
 633 /**************************************************************************
 634  *                              CDROM_Audio_GetSerial           [internal]
 635  */
 636 DWORD CDROM_Audio_GetSerial(WINE_CDAUDIO* wcda)
 637 {
 638     unsigned long serial = 0;
 639     int i;
 640     DWORD dwFrame, msf;
 641     WORD wMinutes, wSeconds, wFrames;
 642         WORD wMagic;
 643         DWORD dwStart, dwEnd;
 644
 645         /*
 646          * wMagic collects the wFrames from track 1
 647          * dwStart, dwEnd collect the beginning and end of the disc respectively, in
 648          * frames.
 649          * There it is collected for correcting the serial when there are less than
 650          * 3 tracks.
 651          */
 652         wMagic = 0;
 653         dwStart = dwEnd = 0;
 654
 655     for (i = 0; i < wcda->nTracks; i++) {
 656         dwFrame = wcda->lpdwTrackPos[i];
 657         wMinutes = dwFrame / CDFRAMES_PERMIN;
 658         wSeconds = (dwFrame - CDFRAMES_PERMIN * wMinutes) / CDFRAMES_PERSEC;
 659         wFrames = dwFrame - CDFRAMES_PERMIN * wMinutes - CDFRAMES_PERSEC * wSeconds;
 660         msf = CDROM_MAKE_MSF(wMinutes, wSeconds, wFrames);
 661
 662         serial += (CDROM_MSF_MINUTE(msf) << 16) +
 663         (CDROM_MSF_SECOND(msf) << 8) +
 664         (CDROM_MSF_FRAME(msf));
 665
 666         if (i==0)
 667         {
 668                 wMagic = wFrames;
 669                 dwStart = dwFrame;
 670         }
 671         dwEnd = dwFrame + wcda->lpdwTrackLen[i];
 672
 673         }
 674
 675         if (wcda->nTracks < 3)
 676         {
 677                 serial += wMagic + (dwEnd - dwStart);
 678         }
 679     return serial;
 680 }
 681
 682 /**************************************************************************
 683  *                              CDROM_Data_GetSerial            [internal]
 684  */
 685 DWORD CDROM_Data_GetSerial(WINE_CDAUDIO* wcda, int parentdev)
 686 {
 687     int dev = CDROM_OPEN( wcda, parentdev );
 688     WORD offs = CDROM_Data_FindBestVoldesc(dev);
 689     union {
 690         unsigned long val;
 691         unsigned char p[4];
 692     } serial;
 693     BYTE b0 = 0, b1 = 1, b2 = 2, b3 = 3;
 694
 695     serial.val = 0;
 696     if (offs)
 697     {
 698         BYTE buf[2048];
 699         OSVERSIONINFOA ovi;
 700         int i;
 701
 702         lseek(dev,offs,SEEK_SET);
 703         read(dev,buf,2048);
 704         /*
 705          * OK, another braindead one... argh. Just believe it.
 706          * Me$$ysoft chose to reverse the serial number in NT4/W2K.
 707          * It's true and nobody will ever be able to change it.
 708          */
 709         ovi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
 710         GetVersionExA(&ovi);
 711         if ((ovi.dwPlatformId == VER_PLATFORM_WIN32_NT)
 712         &&  (ovi.dwMajorVersion >= 4))
 713         {
 714             b0 = 3; b1 = 2; b2 = 1; b3 = 0;
 715         }
 716         for(i=0; i<2048; i+=4)
 717         {
 718             /* DON'T optimize this into DWORD !! (breaks overflow) */
 719             serial.p[b0] += buf[i+b0];
 720             serial.p[b1] += buf[i+b1];
 721             serial.p[b2] += buf[i+b2];
 722             serial.p[b3] += buf[i+b3];
 723         }
 724     }
 725     CDROM_CLOSE( dev, parentdev );
 726     return serial.val;
 727 }
 728
 729 /**************************************************************************
 730  *                              CDROM_GetSerial                 [internal]
 731  */
 732 DWORD CDROM_GetSerial(int drive)
 733 {
 734     WINE_CDAUDIO wcda;
 735     DWORD serial = 0;
 736
 737     /* EXPIRES 01.01.2002 */
 738     WARN("CD-ROM serial number calculation might fail.\n");
 739     WARN("Please test with as many exotic CDs as possible !\n");
 740
 741     if (!(CDROM_Open(&wcda, drive)))
 742     {
 743         int dev = CDROM_OpenDev(&wcda);
 744         int media = CDROM_GetMediaType(&wcda, dev);
 745
 746         switch (media)
 747         {
 748             case CDS_AUDIO:
 749             case CDS_MIXED: /* mixed is basically a mountable audio CD */
 750                 if (!(CDROM_Audio_GetCDStatus(&wcda, dev))) {
 751                     ERR("couldn't get CD status !\n");
 752                     goto end;
 753                 }
 754                 serial = CDROM_Audio_GetSerial(&wcda);
 755                 break;
 756             case CDS_DATA_1:
 757             case CDS_DATA_2:
 758             case CDS_XA_2_1:
 759             case CDS_XA_2_2:
 760             case -1: /* ioctl() error: ISO9660 image file given ? */
 761                 /* hopefully a data CD */
 762                 serial = CDROM_Data_GetSerial(&wcda, dev);
 763                 break;
 764             default:
 765                 WARN("Strange CD type (%d) or empty ?\n", media);
 766         }
 767         if (serial)
 768             TRACE("CD serial number is %04x-%04x.\n",
 769                 HIWORD(serial), LOWORD(serial));
 770         else
 771             if (media >= CDS_AUDIO)
 772                 ERR("couldn't get CD serial !\n");
 773 end:
 774         CDROM_CloseDev(dev);
 775         CDROM_Close(&wcda);
 776     }
 777     return serial;
 778 }
 779
 780 static const char empty_label[] = "           ";
 781
 782 /**************************************************************************
 783  *                              CDROM_Data_GetLabel             [internal]
 784  */
 785 DWORD CDROM_Data_GetLabel(WINE_CDAUDIO* wcda, char *label, int parentdev)
 786 {
 787 #define LABEL_LEN       32+1
 788     int dev = CDROM_OPEN( wcda, parentdev );
 789     WORD offs = CDROM_Data_FindBestVoldesc(dev);
 790     WCHAR label_read[LABEL_LEN]; /* Unicode possible, too */
 791     DWORD unicode_id = 0;
 792
 793     if (offs)
 794     {
 795         if ((lseek(dev, offs+0x58, SEEK_SET) == offs+0x58)
 796         &&  (read(dev, &unicode_id, 3) == 3))
 797         {
 798             int ver = (unicode_id & 0xff0000) >> 16;
 799
 800             if ((lseek(dev, offs+0x28, SEEK_SET) != offs+0x28)
 801             ||  (read(dev, &label_read, LABEL_LEN) != LABEL_LEN))
 802                 goto failure;
 803
 804             CDROM_CLOSE( dev, parentdev );
 805             if ((LOWORD(unicode_id) == 0x2f25) /* Unicode ID */
 806             &&  ((ver == 0x40) || (ver == 0x43) || (ver == 0x45)))
 807             { /* yippee, unicode */
 808                 int i;
 809                 WORD ch;
 810                 for (i=0; i<LABEL_LEN;i++)
 811                 { /* Motorola -> Intel Unicode conversion :-\ */
 812                      ch = label_read[i];
 813                      label_read[i] = (ch << 8) | (ch >> 8);
 814                 }
 815                 WideCharToMultiByte( CP_ACP, 0, label_read, -1, label, 12, NULL, NULL );
 816                 label[11] = 0;
 817             }
 818             else
 819             {
 820                 strncpy(label, (LPSTR)label_read, 11);
 821                 label[11] = '\0';
 822             }
 823             return 0;
 824         }
 825     }
 826 failure:
 827     CDROM_CLOSE( dev, parentdev );
 828     ERR("error reading label !\n");
 829     strcpy(label, empty_label);
 830     return 0;
 831 }
 832
 833 /**************************************************************************
 834  *                              CDROM_GetLabel                  [internal]
 835  */
 836 DWORD CDROM_GetLabel(int drive, char *label)
 837 {
 838     WINE_CDAUDIO wcda;
 839     DWORD ret = 1;
 840
 841     if (!(CDROM_Open(&wcda, drive)))
 842     {
 843         int dev = CDROM_OpenDev(&wcda);
 844         int media = CDROM_GetMediaType(&wcda, dev);
 845         LPSTR cdname = NULL;
 846
 847         switch (media)
 848         {
 849             case CDS_AUDIO:
 850                 cdname = "Audio";
 851                 strcpy(label, "Audio CD   ");
 852                 break;
 853
 854             case CDS_DATA_1: /* fall through for all data CD types !! */
 855                 if (!cdname) cdname = "Data_1";
 856             case CDS_DATA_2:
 857                 if (!cdname) cdname = "Data_2";
 858             case CDS_XA_2_1:
 859                 if (!cdname) cdname = "XA 2.1";
 860             case CDS_XA_2_2:
 861                 if (!cdname) cdname = "XA 2.2";
 862             case -1:
 863                 if (!cdname) cdname = "Unknown/ISO file";
 864
 865                 /* common code *here* !! */
 866                 /* hopefully a data CD */
 867                 CDROM_Data_GetLabel(&wcda, label, dev);
 868                 break;
 869
 870             case CDS_MIXED:
 871                 cdname = "Mixed mode";
 872                 ERR("We don't have a way of determining the label of a mixed mode CD - Linux doesn't allow raw access !!\n");
 873                 /* fall through */
 874             case CDS_NO_INFO:
 875                 if (!cdname) cdname = "No_info";
 876                 strcpy(label, empty_label);
 877                 break;
 878
 879             default:
 880                 WARN("Strange CD type (%d) or empty ?\n", media);
 881                 cdname = "Strange/empty";
 882                 strcpy(label, empty_label);
 883                 ret = 0;
 884                 break;
 885         }
 886
 887         CDROM_CloseDev(dev);
 888         CDROM_Close(&wcda);
 889         TRACE("%s CD: label is '%s'.\n",
 890             cdname, label);
 891     }
 892     else
 893         ret = 0;
 894
 895     return ret;
 896 }
 897