MCDE_CHANNEL_0
mcde_drain_pipe(mcde, MCDE_FIFO_A, MCDE_CHANNEL_0);
MCDE_CHANNEL_0, mode, format, cpp);
mcde_configure_channel(mcde, MCDE_CHANNEL_0, MCDE_FIFO_A, mode);
case MCDE_CHANNEL_0:
case MCDE_CHANNEL_0: