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DMA 的代码
dma.c
/* $Id: dma.c,v 1.5 1992/11/18 02:49:05 root Exp root $
* linux/kernel/dma.c: A DMA channel allocator. Inspired by linux/kernel/irq.c.
* Written by Hennus Bergman, 1992.
*/
#include
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.h
//////////////////////////////////////////////////////////////////////////
// Copyright (C) 2004, Eyoka @ Microunit
// All Rights Reserved
//___________________
dma.c
//////////////////////////////////////////////////////////////////////////
// Copyright (C) 2004, Eyoka @ Microunit
// All Rights Reserved
//___________________
dma.c
/*****************************************
NAME: dma.c
DESC: DMA memory2memory test
HISTORY:
2001.03.31:purnnamu: draft ver 0.0
*****************************************/
#include