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DMA 的代码
dma.c
/*
* linux/arch/arm/kernel/dma.c
*
* Copyright (C) 1995-1998 Russell King
*
* Front-end to the DMA handling. You must provide the following
* architecture-specific routines:
*
* int arch_req
dma.h
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* This is the maximum DMA address that can be DMAd to.
*/
#define MAX_DMA_ADDRESS 0x03000000
/*
* DMA modes - we have two, IN and OUT
*/
typ
dma.h
/*
* linux/include/asm-arm/arch-ebsa110/dma.h
*
* Architecture DMA routes
*
* Copyright (C) 1997.1998 Russell King
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
#ifdef KERNEL_ARCH_DMA
s
dma.h
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* This is the maximum DMA address that can be DMAd to.
*/
#define MAX_DMA_ADDRESS 0x03000000
/*
* DMA modes - we have two, IN and OUT
*/
typ
dma.h
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
#define MAX_DMA_ADDRESS 0xffffffff
/*
* DMA modes - we have two, IN and OUT
*/
typedef enum {
DMA_MODE_READ,
DMA_MODE_WRITE
} dmamode_t;
#defi
dma.h
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* This is the maximum DMA address that can be DMAd to.
*/
#define MAX_DMA_ADDRESS 0x03000000
/*
* DMA modes - we have two, IN and OUT
*/
typ
dma.h
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/*
* This is the maximum DMA address that can be DMAd to.
* There should not be more than (0xd0000000 - 0xc0000000)
* bytes of RAM.
*/
#define MA
dma.h
#ifndef DMA_H
#define DMA_H
/*******************************************************
*
* copyright @ Motorola 1999
*
*******************************************************/
#define NUM_DMA_REG
_dma.asm
;****************************************************************************
;*
;* SciTech OS Portability Manager Library
;*
;* =====================================================
dma.c
/*
* arch/sh/kernel/dma.c
*
* Copyright (C) 2000 Takashi YOSHII
*
* PC like DMA API for SuperH's DMAC.
*/
#include
#include
#include
#include