EDMA_CTLR_CHAN
echan->ch_num = EDMA_CTLR_CHAN(ecc->id, i);
return EDMA_CTLR_CHAN(ecc->id, slot);
#define EDMA_FILTER_PARAM(ctlr, chan) ((int[]) { EDMA_CTLR_CHAN(ctlr, chan) })