int cdrom_read(struct disk_op_s *op);
int atapi_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize);
void ata_setup(void);
int process_ata_op(struct disk_op_s *op);
int process_atapi_op(struct disk_op_s *op);
int cdrom_read(struct disk_op_s *op);
int atapi_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize);
void ata_setup(void);
int process_ata_op(struct disk_op_s *op);
int process_atapi_op(struct disk_op_s *op);