Function sys_command_cd_read

src/blkdev.cpp:961–982

read one cd sector */

/* read one cd sector */
int sys_command_cd_read (int unitnum, uae_u8 *data, int block, int size)
{
	int v;
	if (failunit (unitnum))
		return 0;
	if (!getsem (unitnum))
		return 0;
	if (state[unitnum].device_func->read == NULL) {
		uae_u8 cmd1[12] = { 0x28, 0, (uae_u8)(block >> 24), (uae_u8)(block >> 16), (uae_u8)(block >> 8), (uae_u8)(block >> 0), 0, (uae_u8)(size >> 8), (uae_u8)(size >> 0), 0, 0, 0 };
		v = do_scsi (unitnum, cmd1, sizeof cmd1, data, size * 2048);
#if 0
		if (!v) {
			uae_u8 cmd2[12] = { 0xbe, 0, block >> 24, block >> 16, block >> 8, block >> 0, size >> 16, size >> 8, size >> 0, 0x10, 0, 0 };
			v = do_scsi (unitnum, cmd2, sizeof cmd2, data, size * 2048);
		}
#endif
	} else {
		v = state[unitnum].device_func->read (unitnum, data, block, size);
	}
	freesem (unitnum);
	return v;
}
int sys_command_cd_rawread (int unitnum, uae_u8 *data, int block, int size, int sectorsize)
{
	int v;