📄 imgupd.c
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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES.
//
//------------------------------------------------------------------------------
//
// File: imgupd.c
//
// This file implements the IOCTL_HAL_UPDATE_MODE handler.
//
#include <windows.h>
#include <oal.h>
//------------------------------------------------------------------------------
//
// Function: OALIoCtlHalUpdateMode
//
// Implements the IOCTL_HAL_UPDATE_MODE handler.
// This function gets/sets the RAM-based update mode flag.
//
BOOL OALIoCtlHalUpdateMode (
UINT32 code, VOID *pInpBuffer, UINT32 inpSize, VOID *pOutBuffer,
UINT32 outSize, UINT32 *pOutSize
) {
BOOL rc = FALSE;
BOOL *pfUpdateMode = NULL;
if (pOutSize) {
*pOutSize = 0;
}
// verify the input
if (!pInpBuffer || inpSize != sizeof(BOOL))
{
NKSetLastError(ERROR_INVALID_PARAMETER);
OALMSG(OAL_WARN, (L"ERROR: OALIoCtlHalUpdateMode: Invalid input buffer\r\n"));
goto cleanUp;
}
// Get Update Mode flag from BSP Args
pfUpdateMode = (BOOL *) OALArgsQuery(OAL_ARGS_QUERY_UPDATEMODE);
// if there is no update mode flag, fail
if (pfUpdateMode == NULL)
{
NKSetLastError(ERROR_NOT_SUPPORTED);
OALMSG(OAL_WARN, (L"ERROR: OALIoCtlHalUpdateMode: Device doesn't support Update Mode\r\n"));
goto cleanUp;
}
// update the flag
*pfUpdateMode = *((BOOL *) pInpBuffer);
// Done
rc = TRUE;
cleanUp:
return rc;
}
//------------------------------------------------------------------------------
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