helper.cpp

三星2440原版bsp

#include <windows.h>
#include <s3c2440x.h>
#include "bsp_cfg.h"

void Delay(USHORT count)
{
	volatile int i, j = 0;
	volatile static int loop = S3C2440X_FCLK/100000;
	
	for(;count > 0;count--)
		for(i=0;i < loop; i++) 
			{ j++; }
}

PVOID Cam_RegAlloc(PVOID addr, INT sz)
{
	PVOID reg;

	reg = (PVOID)VirtualAlloc(0, sz, MEM_RESERVE, PAGE_NOACCESS);

	if (reg)
	{
		if (!VirtualCopy(reg, (PVOID)((UINT32)addr >> 8), sz, PAGE_PHYSICAL | PAGE_READWRITE | PAGE_NOCACHE )) 
		{
			RETAILMSG(1,(TEXT("Virtual copy failed: \r\n")));
			VirtualFree(reg, sz, MEM_RELEASE);
			reg = NULL;
		}
		else
		{
			RETAILMSG(1,(TEXT("Virtual alloc/copy success : \r\n")));
		}
	}
	else
	{
		RETAILMSG(1,(TEXT("Virtual alloc failed: \r\n")));
	}

	return reg;
}