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DMA 的代码
dma.h
//===========================================================================
//dma.h
//===========================================================================
#ifndef __DMA_H_
#define __DMA_H
dma.c
//=========================================================================================
//dma.c
//=========================================================================================
#incl
dma.c
#undef __DEBUG_VERSION
#include "def.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "DMAAdmin.h"
#define DMA_CHECK_ATTR 1
typedef struct{ //can't use __pa
dma.c
/* $Id: dma.c,v 1.7 1994/12/28 03:35:33 root Exp root $
* linux/kernel/dma.c: A DMA channel allocator. Inspired by linux/kernel/irq.c.
*
* Written by Hennus Bergman, 1992.
*
* 1994/12/26: Changes
dma.h
#ifndef __DMA_H__
#define __DMA_H__
void Test_Zdma0(void);
void Test_Zdma1(void);
//void Test_Zdma0Xdreq(void);
#endif /*__DMA_H__*/
dma.c
/**********************************************************************
CAUTION: DMA operation is being done in cache-on state NOW.
So,some read value may be not same with real memory value
dma.h
int setup_dma(int chan, int32 physaddr, uint16 length,int mode);
uint16 dma_cnt(int chan);
int dma_disable(int chan);
int dma_enable(int chan);
void *dma_malloc(int32 *,unsigned short);
int dis_d
dma.c
/* PC DMA support functions
*/
#include
#include
#include "global.h"
#include "dma.h"
#include "nospc.h"
/* I/O port addresses for DMA page registers on the PC/AT */
static
dma.ug
Using DMA with ATA or ATAPI
a guide to all the requirements and problems
by Hale Landis
Version 14x and higher