dbdma_t
dbdma_t sc_odbdma, sc_idbdma;
dbdma_t
dbdma_t dt;
dbdma_free(dbdma_t dt)
dbdma_start(dbdma_regmap_t *dmap, dbdma_t dt)
dbdma_t dbdma_alloc(bus_dma_tag_t, int); /* Allocate command structures */
void dbdma_free(dbdma_t); /* Dispose command structures */
void dbdma_start(dbdma_regmap_t *channel, dbdma_t dt);
dbdma_t sc_odbdma, sc_idbdma;
dbdma_t sc_rxdbdma, sc_txdbdma;
dbdma_t sc_txdbdma;
dbdma_t sc_rxdbdma;
dbdma_t sc_dbdma;
dbdma_t sc_dbdma;