_cdio_sunos.c

linux下的MPEG1

  env->gen.fd = -1;
  if (env->gen.fd > -1) {
    if ((ret = ioctl(env->gen.fd, CDROMEJECT)) != 0) {
      cdio_generic_free((void *) env);
      cdio_warn ("CDROMEJECT failed: %s\n", strerror(errno));
      return 1;
    } else {
      return 0;
    }
  }
  return 2;
}


static void *
_cdio_malloc_and_zero(size_t size) {
  void *ptr;

  if( !size ) size++;
    
  if((ptr = malloc(size)) == NULL) {
    cdio_warn("malloc() failed: %s", strerror(errno));
    return NULL;
  }

  memset(ptr, 0, size);
  return ptr;
}

/*!
  Return the value associated with the key "arg".
*/
static const char *
get_arg_solaris (void *p_user_data, const char key[])
{
  _img_private_t *env = p_user_data;

  if (!strcmp (key, "source")) {
    return env->gen.source_name;
  } else if (!strcmp (key, "access-mode")) {
    switch (env->access_mode) {
    case _AM_SUN_CTRL_ATAPI:
      return "ATAPI";
    case _AM_SUN_CTRL_SCSI:
      return "SCSI";
    case _AM_NONE:
      return "no access method";
    }
  } 
  return NULL;
}

/*!
  Return a string containing the default CD device if none is specified.
 */
char *
cdio_get_default_device_solaris(void)
{
  char *volume_device;
  char *volume_name;
  char *volume_action;
  char *device;
  struct stat stb;

  if ((volume_device = getenv("VOLUME_DEVICE")) != NULL &&
      (volume_name   = getenv("VOLUME_NAME"))   != NULL &&
      (volume_action = getenv("VOLUME_ACTION")) != NULL &&
      strcmp(volume_action, "insert") == 0) {

    device = _cdio_malloc_and_zero(strlen(volume_device) 
				  + strlen(volume_name) + 2);
    if (device == NULL)
      return strdup(DEFAULT_CDIO_DEVICE);
    sprintf(device, "%s/%s", volume_device, volume_name);
    if (stat(device, &stb) != 0 || !S_ISCHR(stb.st_mode)) {
      free(device);
      return strdup(DEFAULT_CDIO_DEVICE);
    }
    return device;
  }
  /* Check if it could be a Solaris media*/
  if((stat(DEFAULT_CDIO_DEVICE, &stb) == 0) && S_ISDIR(stb.st_mode)) {
    device = _cdio_malloc_and_zero(strlen(DEFAULT_CDIO_DEVICE) + 4);
    sprintf(device, "%s/s0", DEFAULT_CDIO_DEVICE);
    return device;
  }
  return strdup(DEFAULT_CDIO_DEVICE);
}

/*! 
  Get disc type associated with cd object.
*/

static discmode_t
get_discmode_solaris (void *p_user_data)
{
  _img_private_t *p_env = p_user_data;
  track_t i_track;
  discmode_t discmode=CDIO_DISC_MODE_NO_INFO;
  struct dk_minfo media;
  int ret;

  /* Get the media info */
  if((ret = ioctl(p_env->gen.fd, DKIOCGMEDIAINFO, &media)) != 0) {
     cdio_warn ("DKIOCGMEDIAINFO failed: %s\n", strerror(errno));
	 return CDIO_DISC_MODE_NO_INFO;
  }
  switch(media.dki_media_type) {
  case DK_CDROM:
  case DK_CDR:
  case DK_CDRW:
  /* Do cdrom detection */
  break;
  case DK_DVDROM:	return CDIO_DISC_MODE_DVD_ROM;
  case DK_DVDR:		discmode = CDIO_DISC_MODE_DVD_R;
  break;
  case DK_DVDRAM:	discmode = CDIO_DISC_MODE_DVD_RAM;
  break;
  case DK_DVDRW:
  case DK_DVDRW+1:	discmode = CDIO_DISC_MODE_DVD_RW;
  break;
  default: /* no valid match */
  return CDIO_DISC_MODE_NO_INFO; 
  }

  if((discmode == CDIO_DISC_MODE_DVD_RAM || 
      discmode == CDIO_DISC_MODE_DVD_RW ||
      discmode == CDIO_DISC_MODE_DVD_R)) {
    /* Fallback to uscsi if we can */
    if(geteuid() == 0)
      return get_discmode_solaris(p_user_data);
    return discmode;
  }

  if (!p_env->gen.toc_init) 
    read_toc_solaris (p_env);

  if (!p_env->gen.toc_init) 
    return CDIO_DISC_MODE_NO_INFO;

  for (i_track = p_env->gen.i_first_track; 
       i_track < p_env->gen.i_first_track + p_env->tochdr.cdth_trk1 ; 
       i_track ++) {
    track_format_t track_fmt=get_track_format_solaris(p_env, i_track);

    switch(track_fmt) {
    case TRACK_FORMAT_AUDIO:
      switch(discmode) {
	case CDIO_DISC_MODE_NO_INFO:
	  discmode = CDIO_DISC_MODE_CD_DA;
	  break;
	case CDIO_DISC_MODE_CD_DA:
	case CDIO_DISC_MODE_CD_MIXED: 
	case CDIO_DISC_MODE_ERROR: 
	  /* No change*/
	  break;
      default:
	  discmode = CDIO_DISC_MODE_CD_MIXED;
      }
      break;
    case TRACK_FORMAT_XA:
      switch(discmode) {
	case CDIO_DISC_MODE_NO_INFO:
	  discmode = CDIO_DISC_MODE_CD_XA;
	  break;
	case CDIO_DISC_MODE_CD_XA:
	case CDIO_DISC_MODE_CD_MIXED: 
	case CDIO_DISC_MODE_ERROR: 
	  /* No change*/
	  break;
      default:
	discmode = CDIO_DISC_MODE_CD_MIXED;
      }
      break;
    case TRACK_FORMAT_DATA:
      switch(discmode) {
	case CDIO_DISC_MODE_NO_INFO:
	  discmode = CDIO_DISC_MODE_CD_DATA;
	  break;
	case CDIO_DISC_MODE_CD_DATA:
	case CDIO_DISC_MODE_CD_MIXED: 
	case CDIO_DISC_MODE_ERROR: 
	  /* No change*/
	  break;
      default:
	discmode = CDIO_DISC_MODE_CD_MIXED;
      }
      break;
    case TRACK_FORMAT_ERROR:
    default:
      discmode = CDIO_DISC_MODE_ERROR;
    }
  }
  return discmode;
}

/*!  
  Get format of track. 
*/
static track_format_t
get_track_format_solaris(void *p_user_data, track_t i_track) 
{
  _img_private_t *p_env = p_user_data;
  
  if ( !p_env ) return TRACK_FORMAT_ERROR;
  if (!p_env->gen.init) init_solaris(p_env);
  if (!p_env->gen.toc_init) read_toc_solaris (p_user_data) ;

  if ( (i_track > p_env->gen.i_tracks+p_env->gen.i_first_track) 
       || i_track < p_env->gen.i_first_track)
    return TRACK_FORMAT_ERROR;

  i_track -= p_env->gen.i_first_track;

  /* This is pretty much copied from the "badly broken" cdrom_count_tracks
     in linux/cdrom.c.
   */
  if (p_env->tocent[i_track].cdte_ctrl & CDROM_DATA_TRACK) {
    if (p_env->tocent[i_track].cdte_format == CDIO_CDROM_CDI_TRACK)
      return TRACK_FORMAT_CDI;
    else if (p_env->tocent[i_track].cdte_format == CDIO_CDROM_XA_TRACK) 
      return TRACK_FORMAT_XA;
    else
      return TRACK_FORMAT_DATA;
  } else
    return TRACK_FORMAT_AUDIO;
  
}

/*!
  Return true if we have XA data (green, mode2 form1) or
  XA data (green, mode2 form2). That is track begins:
  sync - header - subheader
  12     4      -  8

  FIXME: there's gotta be a better design for this and get_track_format?
*/
static bool
_cdio_get_track_green(void *p_user_data, track_t i_track) 
{
  _img_private_t *p_env = p_user_data;
  
  if ( !p_env ) return false;
  if (!p_env->gen.init) init_solaris(p_env);
  if (!p_env->gen.toc_init) read_toc_solaris (p_env) ;

  if (i_track >= p_env->gen.i_tracks+p_env->gen.i_first_track 
      || i_track < p_env->gen.i_first_track)
    return false;

  i_track -= p_env->gen.i_first_track;

  /* FIXME: Dunno if this is the right way, but it's what 
     I was using in cd-info for a while.
   */
  return ((p_env->tocent[i_track].cdte_ctrl & 2) != 0);
}

/*!  
  Return the starting MSF (minutes/secs/frames) for track number
  track_num in obj.  Track numbers usually start at something 
  greater than 0, usually 1.

  The "leadout" track is specified either by
  using track_num LEADOUT_TRACK or the total tracks+1.
  False is returned if there is no entry.
*/
static bool
_cdio_get_track_msf(void *p_user_data, track_t i_track, msf_t *msf)
{
  _img_private_t *p_env = p_user_data;

  if (NULL == msf) return false;

  if (!p_env->gen.init) init_solaris(p_env);
  if (!p_env->gen.toc_init) read_toc_solaris (p_env) ;

  if (i_track == CDIO_CDROM_LEADOUT_TRACK) 
    i_track = p_env->gen.i_tracks + p_env->gen.i_first_track;

  if (i_track > (p_env->gen.i_tracks+p_env->gen.i_first_track) 
      || i_track < p_env->gen.i_first_track) {
    return false;
  } else {
    struct cdrom_tocentry *msf0 = &p_env->tocent[i_track-1];
    msf->m = cdio_to_bcd8(msf0->cdte_addr.msf.minute);
    msf->s = cdio_to_bcd8(msf0->cdte_addr.msf.second);
    msf->f = cdio_to_bcd8(msf0->cdte_addr.msf.frame);
    return true;
  }
}

#else 
/*!
  Return a string containing the default VCD device if none is specified.
 */
char *
cdio_get_default_device_solaris(void)
{
  return strdup(DEFAULT_CDIO_DEVICE);
}

#endif /* HAVE_SOLARIS_CDROM */

/*!
  Return an array of strings giving possible CD devices.
 */
char **
cdio_get_devices_solaris (void)
{
#ifndef HAVE_SOLARIS_CDROM
  return NULL;
#else
  char volpath[256];
  struct stat st;
  char **drives = NULL;
  unsigned int i_files=0;
#ifdef HAVE_GLOB_H
  unsigned int i;
  glob_t globbuf;

  globbuf.gl_offs = 0;
  glob("/vol/dev/aliases/cdrom*", GLOB_DOOFFS, NULL, &globbuf);
  for (i=0; i<globbuf.gl_pathc; i++) {
    if(stat(globbuf.gl_pathv[i], &st) < 0)
      continue;

    /* Check if this is a directory, if so it's probably Solaris media */
    if(S_ISDIR(st.st_mode)) {
      sprintf(volpath, "%s/s0", globbuf.gl_pathv[i]);
      if(stat(volpath, &st) == 0)
        cdio_add_device_list(&drives, volpath, &i_files);
	}else
      cdio_add_device_list(&drives, globbuf.gl_pathv[i], &i_files);
  }
  globfree(&globbuf);
#else
  if(stat(DEFAULT_CDIO_DEVICE, &st) == 0) {
    /* Check if this is a directory, if so it's probably Solaris media */
    if(S_ISDIR(st.st_mode)) {
      sprintf(volpath, "%s/s0", DEFAULT_CDIO_DEVICE);
      if(stat(volpath, &st) == 0)
        cdio_add_device_list(&drives, volpath, &i_files);
    }else
      cdio_add_device_list(&drives, DEFAULT_CDIO_DEVICE, &i_files);
  }
#endif /*HAVE_GLOB_H*/
  cdio_add_device_list(&drives, NULL, &i_files);
  return drives;
#endif /*HAVE_SOLARIS_CDROM*/
}

/*!
  Initialization routine. This is the only thing that doesn't
  get called via a function pointer. In fact *we* are the
  ones to set that up.
 */
CdIo *
cdio_open_solaris (const char *psz_source_name)
{
  return cdio_open_am_solaris(psz_source_name, NULL);
}

/*!
  Initialization routine. This is the only thing that doesn't
  get called via a function pointer. In fact *we* are the
  ones to set that up.
 */
CdIo *
cdio_open_am_solaris (const char *psz_orig_source, const char *access_mode)
{

#ifdef HAVE_SOLARIS_CDROM
  CdIo *ret;
  _img_private_t *_data;
  char *psz_source;

  cdio_funcs _funcs;

  _funcs.eject_media        = eject_media_solaris;
  _funcs.free               = cdio_generic_free;
  _funcs.get_arg            = get_arg_solaris;
  _funcs.get_cdtext         = get_cdtext_generic;
  _funcs.get_default_device = cdio_get_default_device_solaris;
  _funcs.get_devices        = cdio_get_devices_solaris;
  _funcs.get_discmode       = get_discmode_solaris;
  _funcs.get_drive_cap      = scsi_mmc_get_drive_cap_generic;
  _funcs.get_first_track_num= get_first_track_num_generic;
  _funcs.get_hwinfo         = NULL;
  _funcs.get_mcn            = scsi_mmc_get_mcn_generic,
  _funcs.get_num_tracks     = get_num_tracks_generic;
  _funcs.get_track_format   = get_track_format_solaris;
  _funcs.get_track_green    = _cdio_get_track_green;
  _funcs.get_track_lba      = NULL; /* This could be implemented if need be. */
  _funcs.get_track_msf      = _cdio_get_track_msf;
  _funcs.lseek              = cdio_generic_lseek;
  _funcs.read               = cdio_generic_read;
  _funcs.read_audio_sectors = _read_audio_sectors_solaris;
  _funcs.read_mode1_sector  = _read_mode1_sector_solaris;
  _funcs.read_mode1_sectors = _read_mode1_sectors_solaris;
  _funcs.read_mode2_sector  = _read_mode2_sector_solaris;
  _funcs.read_mode2_sectors = _read_mode2_sectors_solaris;
  _funcs.read_toc           = read_toc_solaris;
  _funcs.run_scsi_mmc_cmd   = run_scsi_cmd_solaris;
  _funcs.stat_size          = _cdio_stat_size;
  _funcs.set_arg            = _set_arg_solaris;

  _data                 = _cdio_malloc (sizeof (_img_private_t));

  _data->access_mode    = _AM_SUN_CTRL_SCSI;
  _data->gen.init       = false;
  _data->gen.fd         = -1;
  _data->gen.toc_init   = false;
  _data->gen.b_cdtext_init  = false;
  _data->gen.b_cdtext_error = false;

  if (NULL == psz_orig_source) {
    psz_source = cdio_get_default_device_solaris();
    if (NULL == psz_source) return NULL;
    _set_arg_solaris(_data, "source", psz_source);
    free(psz_source);
  } else {
    if (cdio_is_device_generic(psz_orig_source))
      _set_arg_solaris(_data, "source", psz_orig_source);
    else {
      /* The below would be okay if all device drivers worked this way. */
#if 0
      cdio_info ("source %s is not a device", psz_orig_source);
#endif
      return NULL;
    }
  }

  ret = cdio_new ( (void *) _data, &_funcs );
  if (ret == NULL) return NULL;

  if (init_solaris(_data))
    return ret;
  else {
    cdio_generic_free (_data);
    return NULL;
  }

#else 
  return NULL;
#endif /* HAVE_SOLARIS_CDROM */

}

bool
cdio_have_solaris (void)
{
#ifdef HAVE_SOLARIS_CDROM
  return true;
#else 
  return false;
#endif /* HAVE_SOLARIS_CDROM */
}