PSC_SR
if (RD2(sc, PSC_SR) & AC97_SR_DATA_VALID) {
if ((RD2(sc, PSC_SR) & AC97_SR_CMD_SEND) == 0)
val, RD2(sc, PSC_SR));
#define PSC_CN_SR(cs) (*(volatile uint16_t *)((cs)->cs_base + PSC_SR))
if (bus_space_read_2(iot, ioh, PSC_SR) & SR_TXEMP)
sr = PSC_READ_2(sc, PSC_SR);
sr = PSC_READ_2(sc, PSC_SR);
sr = PSC_READ_2(sc, PSC_SR);
while (sc->sc_tbc > 0 && (PSC_READ_2(sc, PSC_SR) & SR_TXRDY)) {