DMA_CTRL_PEN
if ((di->dma.dmactrlflags & DMA_CTRL_PEN) == 0)
if (dmactrlflags & DMA_CTRL_PEN) {
dmactrlflags &= ~DMA_CTRL_PEN;
_dma_ctrlflags(di, DMA_CTRL_ROC | DMA_CTRL_PEN, 0);
if (di->dma.dmactrlflags & DMA_CTRL_PEN) {
if ((dmactrlflags & DMA_CTRL_PEN) == 0)