DBDMA_CMD_IN_MORE
cmd = datain ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;
int cmd = read ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;
cmd = datain ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;
DBDMA_BUILD(cmd, DBDMA_CMD_IN_MORE, 0, NBPG, vtophys(va),
cmd = read ? DBDMA_CMD_IN_MORE : DBDMA_CMD_OUT_MORE;