sddma.h

周立功开发板smartArm2300的sd示例程序。

#ifndef __DMA_H 
#define __DMA_H

#define DMA_SRC			0x7FD00000		/* This is the area original data is stored
										or data to be written to the SD/MMC card. */
#define DMA_DST			0x7FD01000		/* This is the area, after writing to the SD/MMC,
										data read from the SD/MMC card. */
#define DMA_MCIFIFO		0xE008C080
#define DMA_SIZE		SD_BLOCKSIZE	/* DMA_SIZE is the same BLOCK_LENGTH defined in mci.h */

/* DMA mode */
#define M2M				0x00
#define M2P				0x01
#define P2M				0x02
#define P2P				0x03

extern INT32U DMA_Init(INT32U ChannelNum, INT32U DMAMode);

#endif /* end __DMA_H */