BWI_INTR_READY
if (intr_status == BWI_INTR_READY)
CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_READY);
if (CSR_READ_4(sc, BWI_MAC_INTR_STATUS) & BWI_INTR_READY)
(BWI_INTR_READY | BWI_INTR_BEACON | BWI_INTR_TBTT | \