AR5K_AR5212_QCU_TXD
if (AR5K_REG_READ_Q(AR5K_AR5212_QCU_TXD, queue))
AR5K_REG_WRITE_Q(AR5K_AR5212_QCU_TXD, queue);
AR5K_REG_WRITE(AR5K_AR5212_QCU_TXD, 0);