_cpdma_control_set
ret = _cpdma_control_set(ctlr, control, value);
ret = _cpdma_control_set(ctlr, CPDMA_TX_RLIM, rmask);
_cpdma_control_set(ctlr, CPDMA_TX_PRIO_FIXED, prio_mode);
_cpdma_control_set(ctlr, CPDMA_RX_BUFFER_OFFSET, 0);
_cpdma_control_set(ctlr, CPDMA_TX_RLIM, rmask);
_cpdma_control_set(ctlr, CPDMA_TX_PRIO_FIXED, prio_mode);