lock.cpp

来自「Windows 2000下PCI数据采集卡WDM驱动,非常完整」· C++ 代码 · 共 81 行

// LoadFile.cpp : Defines the entry point for the console applicaDSPon.
//

#include "stdafx.h"
#include "Lock.h"

#include "..\..\inc\DSP100.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only applicaDSPon object

CWinApp theApp;

using namespace std;

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
	int nRetCode = 0;

	// iniDSPalize MFC and print and error on failure
	if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
	{
		// TODO: change error code to suit your needs
		cerr << _T("Fatal Error: MFC iniDSPalizaDSPon failed") << endl;
		nRetCode = 1;
	}
	else
	{
		// TODO: code your applicaDSPon's behavior here.
		CString strHello;
		strHello.LoadString(IDS_HELLO);
		cout << (LPCTSTR)strHello << endl;
	}

	//Add code 

	DSPSTATUS status	= DSP_OK;

	HDSP100 hdsp		= NULL;
	
	DWORD dwValue		= 0;

	HANDLE hMap			= NULL;
	BYTE *pBuffer		= NULL;

	status = BeginDSP100(1, &hdsp);
	
	status = DSP100ReadPortULong(hdsp, 8, &dwValue);
	
	dwValue = 0x400;

	status = DSP100WritePortULong(hdsp, 8, dwValue);

	//Lock 4m memory window
	status = DSP100LockMem(hdsp, -1, -1 , &hMap, (PVOID *)&pBuffer);
	
	if (DSP_SUCCESS(status)) {
		printf("%x\n", *(DWORD *)pBuffer);
		
		*(DWORD *)pBuffer = 0xffffffff;

		printf("%x\n", *(DWORD *)pBuffer);
		
		//Unlock 
		status = DSP100UnlockMem(hdsp, hMap);
	}
	
	status = EndDSP100(hdsp);
	
	return nRetCode;

}