s32 CDreadTrack(u32 lsn, int mode, u8 *buffer)
{
s32 s32result;
#ifdef VERBOSE_FUNCTION
PrintLog("CDVD driver: CDreadTrack(%i)", lsn);
#endif /* VERBOSE_FUNCTION */
s32result = 0;
if (buffer == NULL) return(-1);
// The CD way of figuring out where to read.
LBAtoMSF(lsn, buffer);
switch (mode)
{
case CDVD_MODE_2048:
case CDVD_MODE_2328:
case CDVD_MODE_2340:
case CDVD_MODE_2352:
errno = 4; // Interrupted system call... (simulated the first time)
while (errno == 4)
{
errno = 0;
s32result = ioctl(devicehandle, CDROMREADRAW, buffer);
} // ENDWHILE- Continually being interrupted by the system...
break;
case CDVD_MODE_2368: // Unimplemented... as yet.
default:
#ifdef VERBOSE_WARNINGS
PrintLog("CDVD driver: Unknown Mode %i", mode);
#endif /* VERBOSE_WARNINGS */
return(-1); // Illegal Read Mode? Abort
break;
} // ENDSWITCH- Which read mode should we choose?
if ((s32result == -1) || (errno != 0))
{
#ifdef VERBOSE_WARNINGS
PrintLog("CDVD driver: Error reading CD: %i:%s", errno, strerror(errno));
#endif /* VERBOSE_WARNINGS */
InitCDSectorInfo();
return(-1);
} // ENDIF- Trouble getting a track count?
cdmode = mode; // Save mode for buffer positioning later.
return(0); // Call accomplished
} // END CDreadTrack()
void InitCDInfo()
{
InitCDSectorInfo();
} // END InitDiscType()
