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DMA 的代码
dma.h
/* $Id: dma.h,v 1.7 1992/12/14 00:29:34 root Exp root $
* linux/include/asm/dma.h: Defines for using and allocating dma channels.
* Written by Hennus Bergman, 1992.
* High DMA channel support & inf
dma.h
/* Defines for using and allocating dma channels. */
#ifndef _ASM_ARCH_DMA_H
#define _ASM_ARCH_DMA_H
#define MAX_DMA_CHANNELS 10
/* dma0 and dma1 used for network (ethernet) */
#define NETWORK_TX_D
dma.h
/* $Id: dma.h,v 1.2 2001/05/09 12:17:42 johana Exp $ */
#ifndef _ASM_DMA_H
#define _ASM_DMA_H
#include
/* it's useless on the Etrax, but unfortunately needed by the new
bootmem
dma.h
#ifndef _M68K_DMA_H
#define _M68K_DMA_H 1
#include
/* it's useless on the m68k, but unfortunately needed by the new
bootmem allocator (but this should do it for this) */
#define
dma.h
#ifndef __V850_DMA_H__
#define __V850_DMA_H__
/* What should this be? */
#define MAX_DMA_ADDRESS 0xFFFFFFFF
/* reserve a DMA channel */
extern int request_dma (unsigned int dmanr, const char * devi
dma.h
/*
* include/asm-s390/dma.h
*
* S390 version
*/
#ifndef _ASM_DMA_H
#define _ASM_DMA_H
#include /* need byte IO */
#define MAX_DMA_ADDRESS 0x80000000
#define free_dma(x)
dma.h
/*
* linux/include/asm-arm/arch-iop3xx/dma.h
*
* Copyright (C) 2004 Intel Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General
dma.h
/*
* linux/include/asm-arm/arch-sa1100/dma.h
*
* Generic SA1100 DMA support
*
* Copyright (C) 2000 Nicolas Pitre
*
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
#include
dma.h
/*
* linux/include/asm-arm/arch-clps711x/dma.h
*
* Copyright (C) 1997,1998 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU
dma.h
/*
* linux/include/asm-arm/arch-shark/dma.h
*
* by Alexander Schulz
*/
#ifndef __ASM_ARCH_DMA_H
#define __ASM_ARCH_DMA_H
/* Use only the lowest 4MB, nothing else works.
* The rest is not DMAable