HA_SDRQ
#define HA_SDRDY (HA_SSC|HA_SREADY|HA_SDRQ)
if (dpt_pio_wait(base, HA_RSTATUS, HA_SDRQ, 0)) {
while (inb(base + HA_RSTATUS) & HA_SDRQ) {
&& (status != (HA_SDRDY | HA_SERROR | HA_SDRQ)))