dianpen.cpp

这是一个win98下接收中断的vxd源码

// DIANPEN.cpp - main module for VxD DIANPEN

#define DEVICE_MAIN
#include "dianpen.h"
#include "enginevxd.h"
Declare_Virtual_Device(DIANPEN)
#undef DEVICE_MAIN

DianpenVM::DianpenVM(VMHANDLE hVM) : VVirtualMachine(hVM) {}

DianpenThread::DianpenThread(THREADHANDLE hThread) : VThread(hThread) {}

//全局事件变量
HANDLE	g_eventSampleEnd, g_eventSampleStart;	//采样结束事件
HANDLE  g_hEndSample, g_hStartSample;


int g_nAC1050;
int MY_IRQ;//===中断号
//unsigned int SamplePoints;//采样点数
//int * m_pBuf;//ad结果数组之指针
int g_nSampleRearNum;//实际采样点数
bool begin;

BOOL DianpenDevice::OnSysDynamicDeviceInit()
{
	dprintf("init");
	
	//g_eventSampleStart=NULL;
	//g_hStartSample = NULL;
	g_hEndSample= NULL;
	g_nSampleRearNum=0;
	g_nAC1050=0x210;
	MY_IRQ=10;
	begin=false;

/*	m_pMyIRQ=new MyCylinderInt();

	if(m_pMyIRQ && m_pMyIRQ->hook())	//Virtual the INT sucessfully
	{
		m_pMyIRQ->Enable();				//Enable the Cylinder Interrupt
		m_pMyIRQ->physicalUnmask();
		dprintf("Load VXD sucessfully");
		return TRUE;					//Init the VXD sucessfully
	}
	else
	{
		dprintf("Load the VXD failure");
		return FALSE;
	}
*/
	return TRUE;
}

BOOL DianpenDevice::OnSysDynamicDeviceExit()
{
	m_pMyIRQ->Enable(FALSE);
	delete m_pMyIRQ;
	dprintf("Unload the VXD");
	return TRUE;
}

DWORD DianpenDevice::OnW32DeviceIoControl(PIOCTLPARAMS pDIOCParams)
{
	DWORD rc,nSize;

	int i;
	
	switch(pDIOCParams->dioc_IOCtlCode)
	{						//dioc_IOCtlCode--Win32程序调用VxD的服务标识
	case DIOC_OPEN:			//Create the VXD   装载VxD
		dprintf("DIOC_OPEN");
		rc=DEVIOCTL_NOERROR;//装载成功标志
		break;
	case DIOC_CLOSEHANDLE:	//Close the VXD  卸载VxD
/*		m_pMyIRQ->Enable(FALSE);
		delete m_pMyIRQ;*/
		
		dprintf("DIOC_CLOSEHANDLE");
		rc=DEVIOCTL_NOERROR;
		break;
	case DIOC_INIT_IRQ:	

		dprintf("传送地址和中断号到vxd");
		DataStruct *idata;
		idata = new DataStruct;
		idata = (DataStruct *)pDIOCParams->dioc_InBuf;
		

		g_nAC1050 = idata->nAC1050;
		MY_IRQ=idata->my_irq;
//		SamplePoints=idata->samplePointsI;


		dprintf("地址%d中断号%d",g_nAC1050,MY_IRQ);

		m_pMyIRQ=new MyCylinderInt();

		if(m_pMyIRQ && m_pMyIRQ->hook())	//Virtual the INT sucessfully
		{
			m_pMyIRQ->Enable();				//Enable the Cylinder Interrupt
			m_pMyIRQ->physicalUnmask();
			dprintf("虚拟化中断号%d成功!",MY_IRQ);
			return TRUE;					//Init the VXD sucessfully
		}
		else
		{
			dprintf("虚拟化中断号%d失败!",MY_IRQ);
		
		}
		
		delete idata;
		rc=DEVIOCTL_NOERROR;
		break;

	//传递事件到VXD中
	case DIOC_WRITE_EVENT:
		dprintf("向vxd传递事件");
		EventStruct *event_str;
		event_str=new EventStruct;
		//case input buffer to structure
		event_str=(EventStruct *)pDIOCParams->dioc_InBuf; //Win32程序向VxD的输入缓冲,含有ring3给ring0的数据
		//new event handle from Windows Application (Ring3)
		g_hStartSample=event_str->hSampleStart;
		g_hEndSample=event_str->hSampleEnd;

		//_outp(0x22e, 0xf);

		rc=DEVIOCTL_NOERROR;
		break;
	case DIOC_TEST_BEGIN:
		dprintf("begin");
	    _outp(g_nAC1050 + 0x06,0);
		_outp(g_nAC1050 + 0x05,0);
		begin=true;
		//_outp(0x22e, 0);//启动AD转换
		break;
	case DIOC_READ_DATA:
		DataStruct_Dianpen *data;
		data=new DataStruct_Dianpen;
		data->nSampleRearNum=g_nSampleRearNum;//实际采样点数
/*		for(i=0;i<g_nSampleRearNum;i++)
			data->p_buf[i]=m_pBuf[i];//ad结果数组之指针*/
	
		nSize=pDIOCParams->dioc_cbOutBuf;//VxD向Win32程序的输出缓冲大小
		if(nSize>=sizeof(DataStruct_Dianpen))
		{
			memcpy(pDIOCParams->dioc_OutBuf,data,sizeof(DataStruct_Dianpen));
			//dioc_OutBuf -- VxD向Win32程序的输出缓冲
			*(pDIOCParams->dioc_bytesret)=sizeof(DataStruct_Dianpen);
			//dioc_bytesret--VxD实际写入输出缓冲的字节数
			nSize=sizeof(DataStruct_Dianpen);
			pDIOCParams->dioc_bytesret=&nSize;
			rc=DEVIOCTL_NOERROR;
		}
		else//数据缓冲区大小不够
		    rc=DEVIOCTL_NOERROR;
		delete data;
		break;

	default://无效指令处理
		rc=ERROR_INVALID_PARAMETER;
		break;

	}
	
	return rc;
}

VOID DianpenDevice::PM_API_Entry(VMHANDLE hVM, CLIENT_STRUCT* pRegs)
{
}

VOID MyCylinderInt::Enable(BOOL flag)
{

}

MyCylinderInt::MyCylinderInt():VHardwareInt(MY_IRQ,0,0,0)
{
	
}

MyCylinderInt::~MyCylinderInt()
{

}

VOID MyCylinderInt::OnHardwareInt(VMHANDLE hVM)
{
	dprintf(" Heney Int 9 comming !");
	if(begin)
	{
//	_outp(g_nAC1050 + 0x06,0);	//复位AC1050卡( 停止采样 )		
//	_outp(g_nAC1050+0x0f,0x02);	
//	g_nSampleRearNum=_inp(g_nAC1050+0x0c) & 0x00ff;			//read low byte
//	g_nSampleRearNum+=(_inp(g_nAC1050+0x0c) & 0x00ff) * 256;

/*	for(int i=0;i<g_nSampleRearNum;i++)
	{
		m_pBuf[i] = _inpw(g_nAC1050);
	}
*/
	VWIN32_SetWin32Event(g_hEndSample);	
	begin=false;
	dprintf("---SampleEnd!");
	}
		
	sendPhysicalEOI();
}