test_timersample.cpp

windows 2000/XP WDM设备驱动程序开发 附书光盘 武安河著

// Test_TimerSample.cpp
//
// Generated by DriverWizard version DriverStudio 2.6.0 (Build 336)
//
// This console application demonstrates how to open a handle
// to a device in your driver, and communicate with the driver
// using Read, Write, and DeviceIoControl calls, as appropriate.
//
// This test program attempts to open the device using the
// GUID defined in "..\TimerSampleDeviceinterface.h"

#include <stdio.h>
#include <windows.h>

#include <winioctl.h>
#include "..\TimerSampleioctl.h"

#include "..\TimerSampleDeviceinterface.h"	// Has class GUID definition

// This function is found in module OpenByIntf.cpp
HANDLE OpenByInterface(GUID* pClassGuid, DWORD instance, PDWORD pError);

void Test_Start_1HzTimer(void);
void Test_Start_KTimer(void);

void CloseIfOpen(void);

// Global data

// Handle to device opened in driver.
//
HANDLE	hDevice = INVALID_HANDLE_VALUE;

// Class GUID used to open device
//
GUID ClassGuid = TimerSampleDevice_CLASS_GUID;


////////////////////////////////////////////////////////////////////////
// Exit
//
//		Print a message and exit   
//
   void Exit(int res)
{
	printf("Exiting...\n\n");
	CloseIfOpen();
	exit(res);
}


////////////////////////////////////////////////////////////////////////
// Main entry point
//
//
int __cdecl main(int argc, char *argv[])
{
	DWORD	Error;

	printf("Test application Test_TimerSample starting...\n");

	hDevice = OpenByInterface( &ClassGuid, 0, &Error);
	if (hDevice == INVALID_HANDLE_VALUE)
	{
		printf("ERROR opening device: (%0x) returned from CreateFile\n", GetLastError());
		Exit(1);
	}
	else
	{
		printf("Device found, handle open.\n");
	}

	Test_Start_1HzTimer();
	Test_Start_KTimer();

	return 0;
}


////////////////////////////////////////////////////////////////////////
// CloseIfOpen
//
//		Close the device if we previously opened a handle to it.
//
void CloseIfOpen(void)
{
	if (hDevice != INVALID_HANDLE_VALUE)
	{
		// Close the handle to the driver
		if (!CloseHandle(hDevice))
		{
			printf("ERROR: CloseHandle returns %0x.\n", GetLastError());
		}
		hDevice = INVALID_HANDLE_VALUE;
	}
}

#define	IOCTL_INBUF_SIZE	512
#define	IOCTL_OUTBUF_SIZE	512

//=== Parameterized IOCTL Example ===
//void Test_IOCTL_PARAMETERIZED(int nVal, ULONG dwVal)
//{
//  Function body same as other IOCTL handlers, with command line
//	parameters 'nVal' and 'dwVal' available as input.
//}

////////////////////////////////////////////////////////////////////////
// Test_Start_1HzTimer
//
//		Test one Io Control Code
//
// TODO:
//		Pass appropriate arguments to your device and check
//		the return value
//
void Test_Start_1HzTimer(void)
{
// Note that Input and Output are named from the point of view
// of the DEVICE:
//		bufInput  supplies data to the device
//		bufOutput is written by the device to return data to this application

	CHAR	bufInput[IOCTL_INBUF_SIZE];		// Input to device
	CHAR	bufOutput[IOCTL_OUTBUF_SIZE];	// Output from device
	ULONG	nOutput;						// Count written to bufOutput

	// Call device IO Control interface (Start_1HzTimer) in driver
	printf("Start_1HzTimer\n");
	if (!DeviceIoControl(hDevice,
						 Start_1HzTimer,
						 bufInput,
						 IOCTL_INBUF_SIZE,
						 bufOutput,
						 IOCTL_OUTBUF_SIZE,
						 &nOutput,
						 NULL)
	   )
	{
		printf("ERROR: DeviceIoControl returns %0x.", GetLastError());
		Exit(1);
	}
}

////////////////////////////////////////////////////////////////////////
// Test_Start_KTimer
//
//		Test one Io Control Code
//
// TODO:
//		Pass appropriate arguments to your device and check
//		the return value
//
void Test_Start_KTimer(void)
{
// Note that Input and Output are named from the point of view
// of the DEVICE:
//		bufInput  supplies data to the device
//		bufOutput is written by the device to return data to this application

	CHAR	bufInput[IOCTL_INBUF_SIZE];		// Input to device
	CHAR	bufOutput[IOCTL_OUTBUF_SIZE];	// Output from device
	ULONG	nOutput;						// Count written to bufOutput

	// Call device IO Control interface (Start_KTimer) in driver
	printf("Start_KTimer\n");
	if (!DeviceIoControl(hDevice,
						 Start_KTimer,
						 bufInput,
						 IOCTL_INBUF_SIZE,
						 bufOutput,
						 IOCTL_OUTBUF_SIZE,
						 &nOutput,
						 NULL)
	   )
	{
		printf("ERROR: DeviceIoControl returns %0x.", GetLastError());
		Exit(1);
	}
}