dma.h File Reference

#include <linux/spinlock.h>
#include <asm/io.h>
#include <linux/delay.h>

Go to the source code of this file.

Macros
#define	MAX_DMA_ADDRESS   0xbfffffff
#define	isa_dma_bridge_buggy   (0)

Functions
int	request_dma (unsigned int dmanr, const char *device_id)
void	free_dma (unsigned int dmanr)

Variables
spinlock_t	dma_spin_lock

Macro Definition Documentation

#define isa_dma_bridge_buggy   (0)

Definition at line 114 of file dma.h.

#define MAX_DMA_ADDRESS   0xbfffffff

Definition at line 19 of file dma.h.

Function Documentation

void free_dma

(

unsigned int

dmanr

)

Definition at line 95 of file dma.c.

int request_dma	(	unsigned int	dmanr,
		const char *	device_id
	)

request_dma - request a DMA channel

Request the specific DMA channel from the system if it's available.

Definition at line 57 of file dma.c.

Variable Documentation

spinlock_t dma_spin_lock