DMA

dma functions More...

Ameba Common
typedef struct gdma_s	gdma_t
typedef void(*	dma_irq_handler) (uint32_t id)
void	dma_memcpy_init (gdma_t *dma_obj, dma_irq_handler handler, uint32_t id)
	Initial the GDMA. More...
void	dma_memcpy_deinit (gdma_t *dma_obj)
	De-Initial the GDMA. More...
void	dma_memcpy (gdma_t *dma_obj, void *dst, void *src, uint32_t len)
	To do a memory copy by DMA. More...

Ameba1 Only
void	dma_memcpy_aggr_init (gdma_t *dma_obj, dma_irq_handler handler, uint32_t id)
	Initial the GDMA. More...
void	dma_memcpy_aggr (gdma_t *dma_obj, PHAL_GDMA_BLOCK block_info)

Detailed Description

dma functions

Function Documentation

void dma_memcpy	(	gdma_t *	dma_obj,
		void *	dst,
		void *	src,
		uint32_t	len
	)

To do a memory copy by DMA.

Parameters

dma_obj	the GDMA object
dst	destination memory address
src	source memory address
len	copy data length

Return values

None

void dma_memcpy_aggr_init	(	gdma_t *	dma_obj,
		dma_irq_handler	handler,
		uint32_t	id
	)

Initial the GDMA.

Parameters

dma_obj	the GDMA object
handler	the callback function for a DMA transfer complete.
id	the argument of the callback function.

Return values

None

void dma_memcpy_deinit

(

gdma_t *

dma_obj

)

De-Initial the GDMA.

Parameters

dma_obj

the GDMA object

Return values

None

void dma_memcpy_init	(	gdma_t *	dma_obj,
		dma_irq_handler	handler,
		uint32_t	id
	)

Initial the GDMA.

Parameters

dma_obj	the GDMA object
handler	the callback function for a DMA transfer complete.
id	the argument of the callback function.

Return values

None