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/*++
Copyright (c) 1990-98 Microsoft Corporation All Rights Reserved
Module Name:
testapp.c
Abstract:
Environment:
Win32 console multi-threaded application
--*/
#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strsafe.h>
#include "..\sys\sdma.h"
BOOLEAN
ManageDriver(
_In_ LPCTSTR DriverName,
_In_ LPCTSTR ServiceName,
_In_ USHORT Function
);
BOOLEAN
SetupDriverName(
_Inout_updates_bytes_all_(BufferLength) PCHAR DriverLocation,
_In_ ULONG BufferLength
);
char OutputBuffer[100];
char InputBuffer[100];
VOID __cdecl
main(
_In_ ULONG argc,
_In_reads_(argc) PCHAR argv[]
)
{
HANDLE hDevice;
BOOL bRc;
ULONG bytesReturned;
DWORD errNum = 0;
TCHAR driverLocation[MAX_PATH];
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
//
// open the device
//
if ((hDevice = CreateFile( "\\\\.\\DmaTest",
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL)) == INVALID_HANDLE_VALUE) {
errNum = GetLastError();
if (errNum != ERROR_FILE_NOT_FOUND) {
printf("CreateFile failed! ERROR_FILE_NOT_FOUND = %d\n", (int)errNum);
return ;
}
//
// The driver is not started yet so let us the install the driver.
// First setup full path to driver name.
//
if (!SetupDriverName(driverLocation, sizeof(driverLocation))) {
return ;
}
if (!ManageDriver(DRIVER_NAME,
driverLocation,
DRIVER_FUNC_INSTALL
)) {
printf("Unable to install driver. \n");
//
// Error - remove driver.
//
ManageDriver(DRIVER_NAME,
driverLocation,
DRIVER_FUNC_REMOVE
);
return;
}
hDevice = CreateFile( "\\\\.\\DmaTest",
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if ( hDevice == INVALID_HANDLE_VALUE ){
printf ( "Error: CreatFile Failed : %d\n", (int)GetLastError());
return;
}
}
#if 0
//
// Printing Input & Output buffer pointers and size
//
printf("InputBuffer Pointer = %p, BufLength = %d\n", (ULONG *)InputBuffer,
sizeof(InputBuffer));
printf("OutputBuffer Pointer = %p BufLength = %d\n", (ULONG *)OutputBuffer,
sizeof(OutputBuffer));
#endif
//
// Performing METHOD_BUFFERED
//
StringCbCopy(InputBuffer, sizeof(InputBuffer),
"This String is from User Application; using METHOD_BUFFERED");
printf("\nCalling DeviceIoControl METHOD_BUFFERED:\n");
memset(OutputBuffer, 0, sizeof(OutputBuffer));
bRc = DeviceIoControl ( hDevice,
(DWORD) IOCTL_SDMA_WRITE,
&InputBuffer,
(DWORD) strlen ( InputBuffer )+1,
&OutputBuffer,
sizeof( OutputBuffer),
&bytesReturned,
NULL
);
if ( !bRc )
{
printf ( "Error in DeviceIoControl : %d", (int)GetLastError());
return;
}
printf(" OutBuffer (%d): %s\n", bytesReturned, OutputBuffer);
CloseHandle ( hDevice );
//
// Unload the driver. Ignore any errors.
//
driverLocation[ 259 ] = '\0';
ManageDriver(DRIVER_NAME,
driverLocation,
DRIVER_FUNC_REMOVE
);
//
// close the handle to the device.
//
}
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