TXDMA_MBOX_ENABLE
case TXDMA_MBOX_ENABLE:
return (hpi_txdma_channel_control(handle, TXDMA_MBOX_ENABLE, channel));
return (npi_txdma_channel_control(handle, TXDMA_MBOX_ENABLE, channel));
case TXDMA_MBOX_ENABLE: