wdog.h

一个通讯管理机的源代码。比较好用。推荐

#ifndef WDOG_H
#define WDOG_H

/**
  *@author 
  */
#include "msystem.h"
#ifndef _UC7400

#include <sys/io.h>
#include <errno.h>
#include <stdio.h>

class CWDog {
public:
	CWDog()
	{
		m_bIsOpen = false;
	}
	~CWDog()
	{
		Close();
	}
	void Open()
	{	
		if (iopl(3) == 0)
		{
//			cout << "open suc" <<endl;
			inb(0x443);
		}
//		else cout << errno << endl;
		if (ioperm(0x3f0,2,true) == 0)
		{
			outb(0x87,0x3f0);
			outb(0x87,0x3f0);
			outb(0x14,0x3f0);
			outb(0x9c,0x3f1);
			outb(0xaa,0x3f0);
			ioperm(0x3f0,2,false);
			m_bIsOpen = true;
		}
		else
		{
//			cout << errno << endl;
		}
	}
	void Close()
	{
		if (m_bIsOpen)
		{
			if (ioperm(0x3f0,2,true) == 0)
			{
				cout << "close suc" <<endl;
				outb(0x87,0x3f0);
				outb(0x87,0x3f0);
				outb(0x14,0x3f0);
				outb(0x8c,0x3f1);
				outb(0xaa,0x3f0);
				ioperm(0x3f0,2,false);
			}
		}
//		else
//			cout << errno << endl;
	}
	void Flush()
	{
		if (iopl(3) == 0)
		{
//			cout << "Flush suc" <<endl;
			inb(0x443);
			outb(0,0x443);
////			ioperm(0x443,1,false);
		}
//		else
//			cout << errno << endl;
	}
protected:
	bool	m_bIsOpen;
};

#else

#include <moxadevice.h>

class CWDog {
public:
	CWDog()
	{
		m_hWTD = -1;
	}
	~CWDog()
	{
		Close();
	}
	void Open()
	{	
		m_hWTD = swtd_open();
		if (m_hWTD > 0)
		{
//			cout << "open suc" <<endl;
			swtd_enable(m_hWTD, 1000);//enable it and set it 1 seconds
		}
//		else cout << errno() << endl;
	}
	void Close()
	{
		if (m_hWTD > 0)
		{
			swtd_disable(m_hWTD);
			swtd_close(m_hWTD);
		}
	}
	void Flush()
	{
		if (m_hWTD > 0)
			swtd_ack(m_hWTD);
	}
protected:
	int		m_hWTD;
};

#endif

#endif