Use @retval instead of @return.

[mirror_edk2.git] / MdeModulePkg / Universal / MonotonicCounterRuntimeDxe / MonotonicCounter.c

/** @file\r
  Produce the UEFI boot service GetNextMonotonicCount() and runtime service\r
  GetNextHighMonotonicCount().\r
\r
Copyright (c) 2006 - 2008, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include <Uefi.h>\r
\r
#include <Protocol/MonotonicCounter.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/UefiRuntimeLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiRuntimeServicesTableLib.h>\r
\r
//\r
// The handle to install Monotonic Counter Architctural Protocol\r
//\r
EFI_HANDLE  mMonotonicCounterHandle = NULL;\r
\r
//\r
// The current monotonic counter value\r
//\r
UINT64      mEfiMtc;\r
\r
//\r
// Event to update the monotonic Counter's high part when low part overflows.\r
//\r
EFI_EVENT   mEfiMtcEvent;\r
\r
//\r
// Name of the variable for the high part of monotonic counter\r
//\r
CHAR16      *mEfiMtcName = (CHAR16 *) L"MTC";\r
\r
//\r
// Vendor GUID of the variable for the high part of monotonic counter\r
//\r
EFI_GUID    mEfiMtcGuid = { 0xeb704011, 0x1402, 0x11d3, { 0x8e, 0x77, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } };\r
\r
/**\r
  Returns a monotonically increasing count for the platform.\r
\r
  This function returns a 64-bit value that is numerically larger then the last\r
  time the function was called.\r