Name

mca_set_dma_mode — set the DMA mode

Synopsis

void mca_set_dma_mode (unsigned int  dmanr,
 unsigned int  mode);

Arguments

dmanr

DMA channel

mode

mode to set

Description

The DMA controller supports several modes. The mode values you can set are-

MCA_DMA_MODE_READ when reading from the DMA device.

MCA_DMA_MODE_WRITE to writing to the DMA device.

MCA_DMA_MODE_IO to do DMA to or from an I/O port.

MCA_DMA_MODE_16 to do 16bit transfers.