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/*++
Copyright (c) 2006 - 2007, 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.
Module Name:
Variable.h
Abstract:
--*/
#ifndef _VARIABLE_H
#define _VARIABLE_H
//
// Statements that include other header files
//
//
// BugBug: We need relcate the head file.
//
#include <Common/Variable.h>
#define VARIABLE_RECLAIM_THRESHOLD (1024)
#define VARIABLE_STORE_SIZE (64 * 1024)
#define SCRATCH_SIZE (4 * 1024)
//
// Define GET_PAD_SIZE to optimize compiler
//
#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))
#define GET_PAD_SIZE(a) (0)
#else
#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
#endif
#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
typedef enum {
Physical,
Virtual
} VARIABLE_POINTER_TYPE;
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;
} VARIABLE_GLOBAL;
typedef struct {
VARIABLE_GLOBAL VariableGlobal[2];
UINTN VolatileLastVariableOffset;
UINTN NonVolatileLastVariableOffset;
UINT32 FvbInstance;
} ESAL_VARIABLE_GLOBAL;
extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
//
// Functions
//
EFI_STATUS
EFIAPI
VariableCommonInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
;
EFI_STATUS
EFIAPI
VariableServiceInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
;
VOID
EFIAPI
VariableClassAddressChangeEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
;
EFI_STATUS
EFIAPI
GetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID * VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data,
IN VARIABLE_GLOBAL * Global,
IN UINT32 Instance
)
;
EFI_STATUS
EFIAPI
GetNextVariableName (
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
)
;
EFI_STATUS
EFIAPI
SetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data,
IN VARIABLE_GLOBAL *Global,
IN UINTN *VolatileOffset,
IN UINTN *NonVolatileOffset,
IN UINT32 Instance
)
;
EFI_STATUS
EFIAPI
QueryVariableInfo (
IN UINT32 Attributes,
OUT UINT64 *MaximumVariableStorageSize,
OUT UINT64 *RemainingVariableStorageSize,
OUT UINT64 *MaximumVariableSize,
IN VARIABLE_GLOBAL *Global,
IN UINT32 Instance
)
;
#endif
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