vsf_dma_channel_sg_desc_t Struct Reference

DMA scatter-gather descriptor structure. More...

#include <vsf_template_dma.h>

Data Fields
vsf_dma_channel_mode_t	mode
	DMA channel mode.
uint32_t	src_address
	Source address.
uint32_t	dst_address
	Destination address.
uint32_t	count
	Number of bytes to be transferred.
uint32_t	next
	Next descriptor address.

Detailed Description

DMA scatter-gather descriptor structure.

Note

: The vsf_dma_channel_sg_desc_t structure can be redefined according to the descriptor structure required by DMA Scatter-Gather in specific hardware drivers.

Field Documentation

mode

vsf_dma_channel_mode_t vsf_dma_channel_sg_desc_t::mode

DMA channel mode.

src_address

uint32_t vsf_dma_channel_sg_desc_t::src_address

Source address.

dst_address

uint32_t vsf_dma_channel_sg_desc_t::dst_address

Destination address.

count

uint32_t vsf_dma_channel_sg_desc_t::count

Number of bytes to be transferred.

next

uint32_t vsf_dma_channel_sg_desc_t::next

Next descriptor address.