/* ATA command block port addresses. */
#define reg_data(CHANNEL) ((CHANNEL)->reg_base + 0) /* Data. */
#define reg_error(CHANNEL) ((CHANNEL)->reg_base + 1) /* Error. */
/* ATA command block port addresses. */
#define reg_data(CHANNEL) ((CHANNEL)->reg_base + 0) /* Data. */
#define reg_error(CHANNEL) ((CHANNEL)->reg_base + 1) /* Error. */