rio_dma_prep_xfer — RapidIO specific wrapper for device_prep_slave_sg callback defined by DMAENGINE.
struct dma_async_tx_descriptor * rio_dma_prep_xfer ( | struct dma_chan * dchan, |
u16 destid, | |
struct rio_dma_data * data, | |
enum dma_transfer_direction direction, | |
unsigned long flags) ; |
dchan
DMA channel to configure
destid
target RapidIO device destination ID
data
RIO specific data descriptor
direction
DMA data transfer direction (TO or FROM the device)
flags
dmaengine defined flags