remove unnecessary check for NULL pointer.

[mirror_edk2.git] / EdkModulePkg / Universal / Variable / RuntimeDxe / Variable.h

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