static void cdrom_count_tracks(int fd, tracktype *tracks)
{
struct cdrom_tochdr header;
struct cdrom_tocentry entry;
int ret, i;
bzero(tracks, sizeof (*tracks));
ret = cdrom_ioctl(fd, CDROMREADTOCHDR, &header);
/*
* This whole business is a crock anyhow so we don't bother distinguishing
* between no media, drive not ready, etc and on any error just say we have
* no info.
*/
if (ret)
{
tracks->error = CDS_NO_INFO;
return;
}
entry.cdte_format = CDROM_MSF;
for (i = header.cdth_trk0; i <= header.cdth_trk1; i++)
{
entry.cdte_track = i;
if (cdrom_ioctl(fd, CDROMREADTOCENTRY, &entry))
{
tracks->error = CDS_NO_INFO;
return;
}
if (entry.cdte_ctrl & CDROM_DATA_TRACK)
{
if (entry.cdte_format == 0x10)
tracks->cdi++;
else if (entry.cdte_format == 0x20)
tracks->xa++;
else
tracks->data++;
}
else
tracks->audio++;
}
return;
}
/*
* This is the published entry point. Actually applications should simply
* include <dvd.h> and not refer to this at all.
*/
int dvd_cdrom_ioctl(int fd, unsigned long cmd, void *arg)
{
switch (cmd)
{
case DVD_AUTH:
case DVD_READ_STRUCT:
return(dvd_ioctl(fd, cmd, arg));
case CDROMREADTOCHDR:
case CDROMREADTOCENTRY:
case CDROMEJECT:
case CDROMREADRAW:
case CDROMREADMODE1:
case CDROMREADMODE2:
case CDROMCLOSETRAY:
case CDROM_DRIVE_STATUS:
case CDROM_DISC_STATUS:
return(cdrom_ioctl(fd, cmd, arg));
default:
return(ioctl(fd, cmd, arg));
}
}
static int mcdx_block_ioctl(struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
struct s_drive_stuff *p = inode->i_bdev->bd_disk->private_data;
return cdrom_ioctl(file, &p->info, inode, cmd, arg);
}
static int mcd_block_ioctl(struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
return cdrom_ioctl(file, &mcd_info, inode, cmd, arg);
}