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/** @file
The internal header file includes the common header files, defines
internal structure and functions used by RuntimeVariable module.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _VARIABLE_H_
#define _VARIABLE_H_
#include <PiDxe.h>
#include <Protocol/VariableWrite.h>
#include <Protocol/FaultTolerantWrite.h>
#include <Protocol/FirmwareVolumeBlock.h>
#include <Protocol/Variable.h>
#include <Library/PcdLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/UefiRuntimeLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/SynchronizationLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Guid/GlobalVariable.h>
#include <Guid/EventGroup.h>
#include <Guid/VariableFormat.h>
#define VARIABLE_RECLAIM_THRESHOLD (1024)
typedef struct {
VARIABLE_HEADER *CurrPtr;
VARIABLE_HEADER *EndPtr;
VARIABLE_HEADER *StartPtr;
BOOLEAN Volatile;
} VARIABLE_POINTER_TRACK;
typedef struct {
EFI_PHYSICAL_ADDRESS VolatileVariableBase;
EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;
EFI_LOCK VariableServicesLock;
UINT32 ReentrantState;
} VARIABLE_GLOBAL;
typedef struct {
VARIABLE_GLOBAL VariableGlobal;
UINTN VolatileLastVariableOffset;
UINTN NonVolatileLastVariableOffset;
UINTN CommonVariableTotalSize;
UINTN HwErrVariableTotalSize;
CHAR8 PlatformLangCodes[256]; //Pre-allocate 256 bytes space to accommodate the PlatformlangCodes.
CHAR8 LangCodes[256]; //Pre-allocate 256 bytes space to accommodate the langCodes.
CHAR8 PlatformLang[8]; //Pre-allocate 8 bytes space to accommodate the Platformlang variable.
CHAR8 Lang[4]; //Pre-allocate 4 bytes space to accommodate the lang variable.
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbInstance;
} VARIABLE_MODULE_GLOBAL;
typedef struct {
EFI_GUID *Guid;
CHAR16 *Name;
UINT32 Attributes;
UINTN DataSize;
VOID *Data;
} VARIABLE_CACHE_ENTRY;
/**
Writes a buffer to variable storage space, in the working block.
This function writes a buffer to variable storage space into firmware
volume block device. The destination is specified by parameter
VariableBase. Fault Tolerant Write protocol is used for writing.
@param VariableBase Base address of variable to write
@param Buffer Point to the data buffer
@param BufferSize The number of bytes of the data Buffer
@retval EFI_SUCCESS The function completed successfully
@retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol
@retval EFI_ABORTED The function could not complete successfully
**/
EFI_STATUS
FtwVariableSpace (
IN EFI_PHYSICAL_ADDRESS VariableBase,
IN UINT8 *Buffer,
IN UINTN BufferSize
);
#endif
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