clock.cpp

武安河书第一版（vxd）Windows 驱动例子

// CLOCK.cpp - main module for VxD CLOCK

#define DEVICE_MAIN
#include "clock.h"
Declare_Virtual_Device(CLOCK)
#undef DEVICE_MAIN

#include "apcx.h"
#include <vsd.h>


MyHwInt* pMyIRQ;
PVOID	    	CallBackApc = 0;
THREADHANDLE 	TheThread = 0;	
int x=0,y=0;
unsigned char b;

VOID MyHwInt::OnHardwareInt(VMHANDLE hVM)
{
	_outp(0x70,0xc);
	_inp(0x71);
	x++;
	if (x>=1024) {
		x=0;
		y++;
		VWIN32_QueueUserApc(CallBackApc, (DWORD)&y, TheThread);
		VSD_Bell();
	}
	sendPhysicalEOI();
}

BOOL ClockDevice::OnSysDynamicDeviceInit()
{
	pMyIRQ = new MyHwInt();
	if (!pMyIRQ || !pMyIRQ->hook())	return FALSE;
	_outp(0x70,0xb);
	b=_inp(0x71);
	_outp(0x70,0xb);
	_outp(0x71,0x40 | b);
	pMyIRQ->physicalUnmask();
	return TRUE;
}

BOOL ClockDevice::OnSysDynamicDeviceExit()
{
	_outp(0x70,0xb);
	_outp(0x71,b);
	if (pMyIRQ) delete pMyIRQ;
	return TRUE;
}

DWORD ClockDevice::OnW32DeviceIoControl(PIOCTLPARAMS pDIOCParams)
{
	switch (pDIOCParams->dioc_IOCtlCode)
	{
	case DIOC_OPEN:
		return 0;

	case DIOC_CLOSEHANDLE:
		return 0;

	case ADDRESSPASS:

		CallBackApc = pDIOCParams->dioc_InBuf;
		TheThread = Get_Cur_Thread_Handle();
		return 0;

	default:

		return -1;
	}
}