DMAMODE_LOOP
((flags & DMAMODE_LOOP) != 0) != 1) ||
cc, NULL, DMAMODE_WRITE | DMAMODE_LOOP, BUS_DMA_NOWAIT);
cc, NULL, DMAMODE_READ | DMAMODE_LOOP, BUS_DMA_NOWAIT);
#define DMAMODE_LOOPDEMAND (DMAMODE_LOOP | DMAMODE_DEMAND)