ATHN_QID_BEACON
if (athn_tx_pending(sc, ATHN_QID_BEACON)) {
athn_stop_tx_dma(sc, ATHN_QID_BEACON);
AR_WRITE(sc, AR_QTXDP(ATHN_QID_BEACON), bf->bf_daddr);
AR_WRITE(sc, AR_Q_TXE, 1 << ATHN_QID_BEACON);
if (athn_tx_pending(sc, ATHN_QID_BEACON)) {
SM(AR_TXI_QCU_NUM, ATHN_QID_BEACON) |
athn_stop_tx_dma(sc, ATHN_QID_BEACON);
AR_WRITE(sc, AR_QTXDP(ATHN_QID_BEACON), bf->bf_daddr);
AR_WRITE(sc, AR_Q_TXE, 1 << ATHN_QID_BEACON);
AR_SETBITS(sc, AR_QMISC(ATHN_QID_BEACON),
AR_SETBITS(sc, AR_DMISC(ATHN_QID_BEACON),
AR_WRITE(sc, AR_DLCL_IFS(ATHN_QID_BEACON),