libdma.h File Reference

#include <libc.h>

Go to the source code of this file.

Defines
#define	__LIBDMA_H__   1
#define	SYSDMA_REGISTER   1
#define	DMAOPT_COPY   (1<<0u)
#define	DMAOPT_READ   (1<<1u)
#define	DMAOPT_WRITE   (1<<2u)
#define	SYSDMA_UNREGISTER   2
#define	SYSDMA_RESET   3
#define	SYSDMA_DUMP   5
Enumerations
enum	t_dma_register_suberrno_codes {   DMA_REGISTER_BAD_CHANNEL = 100, DMA_REGISTER_CHANNEL_NOT_AVAIL, DMA_REGISTER_BAD_LEN, DMA_REGISTER_NOT_SHARED_RW,   DMA_REGISTER_BAD_DMA_BLOCK, DMA_REGISTER_NOT_DMA_MEM }
Functions
int	dma_register (int channel, char *dmabuf, int dmaoff, int dmalen, u_int32_t dmaopt)
int	dma_write (int channel, char *buf, int len)
int	dma_read (int channel, char *buf, int len)
int	dma_unregister (int channel)
int	dma_reset (int channel, int dmaoff, int dmalen)
int	dma_dump (void)

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Define Documentation

#define __LIBDMA_H__   1

#define DMAOPT_COPY   (1<<0u)

#define DMAOPT_READ   (1<<1u)

#define DMAOPT_WRITE   (1<<2u)

#define SYSDMA_DUMP   5

#define SYSDMA_REGISTER   1

#define SYSDMA_RESET   3

#define SYSDMA_UNREGISTER   2

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Enumeration Type Documentation

enum t_dma_register_suberrno_codes

Enumerator: DMA_REGISTER_BAD_CHANNEL  DMA_REGISTER_CHANNEL_NOT_AVAIL  DMA_REGISTER_BAD_LEN  DMA_REGISTER_NOT_SHARED_RW  DMA_REGISTER_BAD_DMA_BLOCK  DMA_REGISTER_NOT_DMA_MEM

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Function Documentation

int dma_dump (  void   )

int dma_read (  int  channel, char *  buf, int  len )

int dma_register (  int  channel, char *  dmabuf, int  dmaoff, int  dmalen, u_int32_t  dmaopt )

int dma_reset (  int  channel, int  dmaoff, int  dmalen )

int dma_unregister (  int  channel  )

int dma_write (  int  channel, char *  buf, int  len )

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