OldMdePkg/Include/Library/PcdLib.h - edk2 - Git at Google

 /** @file
 PCD Library Class Interface Declarations

 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: PcdLib.h

 **/

 #ifndef __PCD_LIB_H__
 #define __PCD_LIB_H__

 #define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)

 #define PcdToken(TokenName)                 _PCD_TOKEN_##TokenName


 //
 // Feature Flag is in the form of a global constant
 //
 #define FeaturePcdGet(TokenName)            _PCD_GET_MODE_BOOL_##TokenName


 //
 // Fixed is fixed at build time
 //
 #define FixedPcdGet8(TokenName)             _PCD_VALUE_##TokenName
 #define FixedPcdGet16(TokenName)            _PCD_VALUE_##TokenName
 #define FixedPcdGet32(TokenName)            _PCD_VALUE_##TokenName
 #define FixedPcdGet64(TokenName)            _PCD_VALUE_##TokenName
 #define FixedPcdGetBool(TokenName)          _PCD_VALUE_##TokenName


 #define FixedPcdGetPtr(TokenName)           ((VOID *)_PCD_VALUE_##TokenName)


 //
 // (Binary) Patch is in the form of a global variable
 //
 #define PatchPcdGet8(TokenName)             _gPcd_BinaryPatch_##TokenName
 #define PatchPcdGet16(TokenName)            _gPcd_BinaryPatch_##TokenName
 #define PatchPcdGet32(TokenName)            _gPcd_BinaryPatch_##TokenName
 #define PatchPcdGet64(TokenName)            _gPcd_BinaryPatch_##TokenName
 #define PatchPcdGetBool(TokenName)          _gPcd_BinaryPatch_##TokenName
 #define PatchPcdGetPtr(TokenName)           ((VOID *)_gPcd_BinaryPatch_##TokenName)

 #define PatchPcdSet8(TokenName, Value)      (_gPcd_BinaryPatch_##TokenName = (Value))
 #define PatchPcdSet16(TokenName, Value)     (_gPcd_BinaryPatch_##TokenName = (Value))
 #define PatchPcdSet32(TokenName, Value)     (_gPcd_BinaryPatch_##TokenName = (Value))
 #define PatchPcdSet64(TokenName, Value)     (_gPcd_BinaryPatch_##TokenName = (Value))
 #define PatchPcdSetBool(TokenName, Value)   (_gPcd_BinaryPatch_##TokenName = (Value))
 #define PatchPcdSetPtr(TokenName, Size, Buffer) \
                                             LibPatchPcdSetPtr (                        \
                                               _gPcd_BinaryPatch_##TokenName,           \
                                               (UINTN)_PCD_PATCHABLE_##TokenName##_SIZE, \
                                               (Size),                                  \
                                               (Buffer)                                 \
                                               )

 //
 // Dynamic is via the protocol with only the TokenNumber as argument
 //  It can also be Patch or Fixed type based on a build option
 //
 #define PcdGet8(TokenName)                  _PCD_GET_MODE_8_##TokenName
 #define PcdGet16(TokenName)                 _PCD_GET_MODE_16_##TokenName
 #define PcdGet32(TokenName)                 _PCD_GET_MODE_32_##TokenName
 #define PcdGet64(TokenName)                 _PCD_GET_MODE_64_##TokenName
 #define PcdGetPtr(TokenName)                _PCD_GET_MODE_PTR_##TokenName
 #define PcdGetBool(TokenName)               _PCD_GET_MODE_BOOL_##TokenName

 //
 // Dynamic Set
 //
 #define PcdSet8(TokenName, Value)           _PCD_SET_MODE_8_##TokenName     ((Value))
 #define PcdSet16(TokenName, Value)          _PCD_SET_MODE_16_##TokenName    ((Value))
 #define PcdSet32(TokenName, Value)          _PCD_SET_MODE_32_##TokenName    ((Value))
 #define PcdSet64(TokenName, Value)          _PCD_SET_MODE_64_##TokenName    ((Value))
 #define PcdSetPtr(TokenName, SizeOfBuffer, Buffer) \
                                             _PCD_SET_MODE_PTR_##TokenName   ((SizeOfBuffer), (Buffer))
 #define PcdSetBool(TokenName, Value)        _PCD_SET_MODE_BOOL_##TokenName  ((Value))

 //
 // Dynamic Ex is to support binary distribution
 //
 #define PcdGetEx8(Guid, TokenName)          LibPcdGetEx8    ((Guid), _PCD_TOKEN_##TokenName)
 #define PcdGetEx16(Guid, TokenName)         LibPcdGetEx16   ((Guid), _PCD_TOKEN_##TokenName)
 #define PcdGetEx32(Guid, TokenName)         LibPcdGetEx32   ((Guid), _PCD_TOKEN_##TokenName)
 #define PcdGetEx64(Guid, TokenName)         LibPcdGetEx64   ((Guid), _PCD_TOKEN_##TokenName)
 #define PcdGetExPtr(Guid, TokenName)        LibPcdGetExPtr  ((Guid), _PCD_TOKEN_##TokenName)
 #define PcdGetExBool(Guid, TokenName)       LibPcdGetExBool ((Guid), _PCD_TOKEN_##TokenName)

 //
 // Dynamic Set Ex
 //
 #define PcdSetEx8(Guid, TokenName, Value)   LibPcdSetEx8   ((Guid), _PCD_TOKEN_##TokenName, (Value))
 #define PcdSetEx16(Guid, TokenName, Value)  LibPcdSetEx16  ((Guid), _PCD_TOKEN_##TokenName, (Value))
 #define PcdSetEx32(Guid, TokenName, Value)  LibPcdSetEx32  ((Guid), _PCD_TOKEN_##TokenName, (Value))
 #define PcdSetEx64(Guid, TokenName, Value)  LibPcdSetEx64  ((Guid), _PCD_TOKEN_##TokenName, (Value))
 #define PcdSetExPtr(Guid, TokenName, SizeOfBuffer, Buffer) \
                                             LibPcdSetExPtr ((Guid), _PCD_TOKEN_##TokenName, (SizeOfBuffer), (Buffer))
 #define PcdSetExBool(Guid, TokenName, Value) \
                                             LibPcdSetExBool((Guid), _PCD_TOKEN_##TokenName, (Value))


 /**
   Sets the current SKU in the PCD database to the value specified by SkuId.  SkuId is returned.

   @param[in]  SkuId The SKU value that will be used when the PCD service will retrieve and
               set values associated with a PCD token.

   @retval SKU_ID Return the SKU ID that just be set.

 **/
 UINTN
 EFIAPI
 LibPcdSetSku (
   IN UINTN   SkuId
   );


 /**
   Returns the 8-bit value for the token specified by TokenNumber.

   @param[in]  The PCD token number to retrieve a current value for.

   @retval UINT8 Returns the 8-bit value for the token specified by TokenNumber.

 **/
 UINT8
 EFIAPI
 LibPcdGet8 (
   IN UINTN             TokenNumber
   );


 /**
   Returns the 16-bit value for the token specified by TokenNumber.

   @param[in]  The PCD token number to retrieve a current value for.

   @retval UINT16 Returns the 16-bit value for the token specified by TokenNumber.

 **/
 UINT16
 EFIAPI
 LibPcdGet16 (
   IN UINTN             TokenNumber
   );


 /**
   Returns the 32-bit value for the token specified by TokenNumber.

   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT32 Returns the 32-bit value for the token specified by TokenNumber.

 **/
 UINT32
 EFIAPI
 LibPcdGet32 (
   IN UINTN             TokenNumber
   );


 /**
   Returns the 64-bit value for the token specified by TokenNumber.

   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT64 Returns the 64-bit value for the token specified by TokenNumber.

 **/
 UINT64
 EFIAPI
 LibPcdGet64 (
   IN UINTN             TokenNumber
   );


 /**
   Returns the pointer to the buffer of the token specified by TokenNumber.

   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval VOID* Returns the pointer to the token specified by TokenNumber.

 **/
 VOID *
 EFIAPI
 LibPcdGetPtr (
   IN UINTN             TokenNumber
   );


 /**
   Returns the Boolean value of the token specified by TokenNumber.

   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval BOOLEAN Returns the Boolean value of the token specified by TokenNumber.

 **/
 BOOLEAN
 EFIAPI
 LibPcdGetBool (
   IN UINTN             TokenNumber
   );


 /**
   Returns the size of the token specified by TokenNumber.

   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINTN Returns the size of the token specified by TokenNumber.

 **/
 UINTN
 EFIAPI
 LibPcdGetSize (
   IN UINTN             TokenNumber
   );


 /**
   Returns the 8-bit value for the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT8 Return the UINT8.

 **/
 UINT8
 EFIAPI
 LibPcdGetEx8 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the 16-bit value for the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT16 Return the UINT16.

 **/
 UINT16
 EFIAPI
 LibPcdGetEx16 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the 32-bit value for the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT32 Return the UINT32.

 **/
 UINT32
 EFIAPI
 LibPcdGetEx32 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the 64-bit value for the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINT64 Return the UINT64.

 **/
 UINT64
 EFIAPI
 LibPcdGetEx64 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the pointer to the buffer of token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval VOID* Return the VOID* pointer.

 **/
 VOID *
 EFIAPI
 LibPcdGetExPtr (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the Boolean value of the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval BOOLEAN Return the BOOLEAN.

 **/
 BOOLEAN
 EFIAPI
 LibPcdGetExBool (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Returns the size of the token specified by TokenNumber and Guid.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates
               which namespace to retrieve a value from.
   @param[in]  TokenNumber The PCD token number to retrieve a current value for.

   @retval UINTN Return the size.

 **/
 UINTN
 EFIAPI
 LibPcdGetExSize (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber
   );


 /**
   Sets the 8-bit value for the token specified by TokenNumber
   to the value specified by Value.  Value is returned.

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 8-bit value to set.

   @retval UINT8 Return the value been set.

 **/
 UINT8
 EFIAPI
 LibPcdSet8 (
   IN UINTN             TokenNumber,
   IN UINT8             Value
   );


 /**
   Sets the 16-bit value for the token specified by TokenNumber
   to the value specified by Value.  Value is returned.

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 16-bit value to set.

   @retval UINT16 Return the value been set.

 **/
 UINT16
 EFIAPI
 LibPcdSet16 (
   IN UINTN             TokenNumber,
   IN UINT16            Value
   );


 /**
   Sets the 32-bit value for the token specified by TokenNumber
   to the value specified by Value.  Value is returned.

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 32-bit value to set.

   @retval UINT32 Return the value been set.

 **/
 UINT32
 EFIAPI
 LibPcdSet32 (
   IN UINTN             TokenNumber,
   IN UINT32            Value
   );


 /**
   Sets the 64-bit value for the token specified by TokenNumber
   to the value specified by Value.  Value is returned.

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 64-bit value to set.

   @retval UINT64 Return the value been set.

 **/
 UINT64
 EFIAPI
 LibPcdSet64 (
   IN UINTN             TokenNumber,
   IN UINT64            Value
   );


 /**
   Sets a buffer for the token specified by TokenNumber to the value
   specified by Buffer and SizeOfValue.  Buffer is returned.
   If SizeOfValue is greater than the maximum size support by TokenNumber,
   then set SizeOfValue to the maximum size supported by TokenNumber and
   return NULL to indicate that the set operation was not actually performed.

   If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to the
   maximum size supported by TokenName and NULL must be returned.

   If SizeOfValue is NULL, then ASSERT().
   If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in,out] SizeOfBuffer The size, in bytes, of Buffer.
   @param[in]  Value A pointer to the buffer to set.

   @retval VOID* Return the pointer for the buffer been set.

 **/
 VOID*
 EFIAPI
 LibPcdSetPtr (
   IN      UINTN             TokenNumber,
   IN OUT  UINTN             *SizeOfBuffer,
   IN      VOID              *Buffer
   );


 /**
   Sets the Boolean value for the token specified by TokenNumber
   to the value specified by Value.  Value is returned.

   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The boolean value to set.

   @retval BOOLEAN Return the value been set.

 **/
 BOOLEAN
 EFIAPI
 LibPcdSetBool (
   IN UINTN             TokenNumber,
   IN BOOLEAN           Value
   );


 /**
   Sets the 8-bit value for the token specified by TokenNumber and
   Guid to the value specified by Value. Value is returned.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 8-bit value to set.

   @retval UINT8 Return the value been set.

 **/
 UINT8
 EFIAPI
 LibPcdSetEx8 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber,
   IN UINT8             Value
   );


 /**
   Sets the 16-bit value for the token specified by TokenNumber and
   Guid to the value specified by Value. Value is returned.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 16-bit value to set.

   @retval UINT8 Return the value been set.

 **/
 UINT16
 EFIAPI
 LibPcdSetEx16 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber,
   IN UINT16            Value
   );


 /**
   Sets the 32-bit value for the token specified by TokenNumber and
   Guid to the value specified by Value. Value is returned.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 32-bit value to set.

   @retval UINT32 Return the value been set.

 **/
 UINT32
 EFIAPI
 LibPcdSetEx32 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber,
   IN UINT32            Value
   );


 /**
   Sets the 64-bit value for the token specified by TokenNumber and
   Guid to the value specified by Value. Value is returned.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The 64-bit value to set.

   @retval UINT64 Return the value been set.

 **/
 UINT64
 EFIAPI
 LibPcdSetEx64 (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber,
   IN UINT64            Value
   );


 /**
   Sets a buffer for the token specified by TokenNumber to the value specified by
   Buffer and SizeOfValue.  Buffer is returned.  If SizeOfValue is greater than
   the maximum size support by TokenNumber, then set SizeOfValue to the maximum size
   supported by TokenNumber and return NULL to indicate that the set operation
   was not actually performed.

   If Guid is NULL, then ASSERT().
   If SizeOfValue is NULL, then ASSERT().
   If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.
   @param[in]  Buffer A pointer to the buffer to set.

   @retval VOID * Return the pinter to the buffer been set.

 **/
 VOID *
 EFIAPI
 LibPcdSetExPtr (
   IN      CONST GUID        *Guid,
   IN      UINTN             TokenNumber,
   IN OUT  UINTN             *SizeOfBuffer,
   IN      VOID              *Buffer
   );


 /**
   Sets the Boolean value for the token specified by TokenNumber and
   Guid to the value specified by Value. Value is returned.
   If Guid is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that
               designates which namespace to set a value from.
   @param[in]  TokenNumber The PCD token number to set a current value for.
   @param[in]  Value The Boolean value to set.

   @retval Boolean Return the value been set.

 **/
 BOOLEAN
 EFIAPI
 LibPcdSetExBool (
   IN CONST GUID        *Guid,
   IN UINTN             TokenNumber,
   IN BOOLEAN           Value
   );


 /**
   When the token specified by TokenNumber and Guid is set,
   then notification function specified by NotificationFunction is called.
   If Guid is NULL, then the default token space is used.
   If NotificationFunction is NULL, then ASSERT().

   This notification function serves two purposes. Firstly, it notifies the module which
   did the registration that the value of this PCD token has been set. Secondly,
   it provides a mechanism for the module which did the registration to intercept
   the set operation and override the value been set if necessary. After the invocation
   of the callback function, TokenData will be used by PCD service PEIM or driver to
   modify the internal data in PCD database.


   @param[in]  CallBackGuid The PCD token GUID being set.
   @param[in]  CallBackToken The PCD token number being set.
   @param[in, out]  TokenData A pointer to the token data being set.
   @param[in]  TokenDataSize The size, in bytes, of the data being set.

   @retval VOID

 **/
 typedef
 VOID
 (EFIAPI *PCD_CALLBACK) (
   IN        CONST GUID        *CallBackGuid, OPTIONAL
   IN        UINTN             CallBackToken,
   IN  OUT   VOID              *TokenData,
   IN        UINTN             TokenDataSize
   );


 /**
   When the token specified by TokenNumber and Guid is set,
   then notification function specified by NotificationFunction is called.
   If Guid is NULL, then the default token space is used.
   If NotificationFunction is NULL, then ASSERT().

   @param[in]  Guid Pointer to a 128-bit unique value that designates which
               namespace to set a value from.  If NULL, then the default
               token space is used.
   @param[in]  TokenNumber The PCD token number to monitor.
   @param[in]  NotificationFunction The function to call when the token
               specified by Guid and TokenNumber is set.

   @retval VOID

 **/
 VOID
 EFIAPI
 LibPcdCallbackOnSet (
   IN CONST GUID               *Guid,       OPTIONAL
   IN UINTN                    TokenNumber,
   IN PCD_CALLBACK             NotificationFunction
   );


 /**
   Disable a notification function that was established with LibPcdCallbackonSet().

   @param[in]  Guid Specify the GUID token space.
   @param[in]  TokenNumber Specify the token number.
   @param[in]  NotificationFunction The callback function to be unregistered.

   @retval VOID

 **/
 VOID
 EFIAPI
 LibPcdCancelCallback (
   IN CONST GUID               *Guid,       OPTIONAL
   IN UINTN                    TokenNumber,
   IN PCD_CALLBACK             NotificationFunction
   );


 /**
   Retrieves the next PCD token number from the token space specified by Guid.
   If Guid is NULL, then the default token space is used.  If TokenNumber is 0,
   then the first token number is returned.  Otherwise, the token number that
   follows TokenNumber in the token space is returned.  If TokenNumber is the last
   token number in the token space, then 0 is returned.  If TokenNumber is not 0 and
   is not in the token space specified by Guid, then ASSERT().

   @param[in]  Pointer to a 128-bit unique value that designates which namespace
               to set a value from.  If NULL, then the default token space is used.
   @param[in]  The previous PCD token number.  If 0, then retrieves the first PCD
               token number.

   @retval UINTN            The next valid token number.

 **/
 UINTN
 EFIAPI
 LibPcdGetNextToken (
   IN CONST GUID               *Guid,       OPTIONAL
   IN UINTN                    TokenNumber
   );


 /**
   Retrieves the next PCD token space from a token space specified by Guid.
   Guid of NULL is reserved to mark the default local token namespace on the current
   platform. If Guid is NULL, then the GUID of the first non-local token space of the
   current platform is returned. If Guid is the last non-local token space,
   then NULL is returned.

   If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().


   @param[in]  Guid Pointer to a 128-bit unique value that designates from which namespace
               to start the search.

   @retval CONST GUID *  The next valid token namespace.

 **/
 GUID *
 EFIAPI
 LibPcdGetNextTokenSpace (
   IN CONST GUID  *Guid
   );


 /**
   Sets the PCD entry specified by PatchVariable to the value specified by Buffer
   and SizeOfValue.  Buffer is returned.  If SizeOfValue is greater than
   MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return
   NULL to indicate that the set operation was not actually performed.
   If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to
   MaximumDatumSize and NULL must be returned.

   If PatchVariable is NULL, then ASSERT().
   If SizeOfValue is NULL, then ASSERT().
   If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

   @param[in] PatchVariable      A pointer to the global variable in a module that is
                                 the target of the set operation.
   @param[in] MaximumDatumSize   The maximum size allowed for the PCD entry specified by PatchVariable.
   @param[in, out] SizeOfBuffer  A pointer to the size, in bytes, of Buffer.
   @param[in] Buffer             A pointer to the buffer to used to set the target variable.

 **/
 VOID *
 EFIAPI
 LibPatchPcdSetPtr (
   IN        VOID        *PatchVariable,
   IN        UINTN       MaximumDatumSize,
   IN OUT    UINTN       *SizeOfBuffer,
   IN CONST  VOID        *Buffer
   );

 #endif
	/** @file
	PCD Library Class Interface Declarations

	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: PcdLib.h

	**/

	#ifndef __PCD_LIB_H__
	#define __PCD_LIB_H__

	#define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)

	#define PcdToken(TokenName) _PCD_TOKEN_##TokenName


	//
	// Feature Flag is in the form of a global constant
	//
	#define FeaturePcdGet(TokenName) _PCD_GET_MODE_BOOL_##TokenName


	//
	// Fixed is fixed at build time
	//
	#define FixedPcdGet8(TokenName) _PCD_VALUE_##TokenName
	#define FixedPcdGet16(TokenName) _PCD_VALUE_##TokenName
	#define FixedPcdGet32(TokenName) _PCD_VALUE_##TokenName
	#define FixedPcdGet64(TokenName) _PCD_VALUE_##TokenName
	#define FixedPcdGetBool(TokenName) _PCD_VALUE_##TokenName


	#define FixedPcdGetPtr(TokenName) ((VOID *)_PCD_VALUE_##TokenName)


	//
	// (Binary) Patch is in the form of a global variable
	//
	#define PatchPcdGet8(TokenName) _gPcd_BinaryPatch_##TokenName
	#define PatchPcdGet16(TokenName) _gPcd_BinaryPatch_##TokenName
	#define PatchPcdGet32(TokenName) _gPcd_BinaryPatch_##TokenName
	#define PatchPcdGet64(TokenName) _gPcd_BinaryPatch_##TokenName
	#define PatchPcdGetBool(TokenName) _gPcd_BinaryPatch_##TokenName
	#define PatchPcdGetPtr(TokenName) ((VOID *)_gPcd_BinaryPatch_##TokenName)

	#define PatchPcdSet8(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))
	#define PatchPcdSet16(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))
	#define PatchPcdSet32(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))
	#define PatchPcdSet64(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))
	#define PatchPcdSetBool(TokenName, Value) (_gPcd_BinaryPatch_##TokenName = (Value))
	#define PatchPcdSetPtr(TokenName, Size, Buffer) \
	LibPatchPcdSetPtr ( \
	_gPcd_BinaryPatch_##TokenName, \
	(UINTN)_PCD_PATCHABLE_##TokenName##_SIZE, \
	(Size), \
	(Buffer) \
	)

	//
	// Dynamic is via the protocol with only the TokenNumber as argument
	// It can also be Patch or Fixed type based on a build option
	//
	#define PcdGet8(TokenName) _PCD_GET_MODE_8_##TokenName
	#define PcdGet16(TokenName) _PCD_GET_MODE_16_##TokenName
	#define PcdGet32(TokenName) _PCD_GET_MODE_32_##TokenName
	#define PcdGet64(TokenName) _PCD_GET_MODE_64_##TokenName
	#define PcdGetPtr(TokenName) _PCD_GET_MODE_PTR_##TokenName
	#define PcdGetBool(TokenName) _PCD_GET_MODE_BOOL_##TokenName

	//
	// Dynamic Set
	//
	#define PcdSet8(TokenName, Value) _PCD_SET_MODE_8_##TokenName ((Value))
	#define PcdSet16(TokenName, Value) _PCD_SET_MODE_16_##TokenName ((Value))
	#define PcdSet32(TokenName, Value) _PCD_SET_MODE_32_##TokenName ((Value))
	#define PcdSet64(TokenName, Value) _PCD_SET_MODE_64_##TokenName ((Value))
	#define PcdSetPtr(TokenName, SizeOfBuffer, Buffer) \
	_PCD_SET_MODE_PTR_##TokenName ((SizeOfBuffer), (Buffer))
	#define PcdSetBool(TokenName, Value) _PCD_SET_MODE_BOOL_##TokenName ((Value))

	//
	// Dynamic Ex is to support binary distribution
	//
	#define PcdGetEx8(Guid, TokenName) LibPcdGetEx8 ((Guid), _PCD_TOKEN_##TokenName)
	#define PcdGetEx16(Guid, TokenName) LibPcdGetEx16 ((Guid), _PCD_TOKEN_##TokenName)
	#define PcdGetEx32(Guid, TokenName) LibPcdGetEx32 ((Guid), _PCD_TOKEN_##TokenName)
	#define PcdGetEx64(Guid, TokenName) LibPcdGetEx64 ((Guid), _PCD_TOKEN_##TokenName)
	#define PcdGetExPtr(Guid, TokenName) LibPcdGetExPtr ((Guid), _PCD_TOKEN_##TokenName)
	#define PcdGetExBool(Guid, TokenName) LibPcdGetExBool ((Guid), _PCD_TOKEN_##TokenName)

	//
	// Dynamic Set Ex
	//
	#define PcdSetEx8(Guid, TokenName, Value) LibPcdSetEx8 ((Guid), _PCD_TOKEN_##TokenName, (Value))
	#define PcdSetEx16(Guid, TokenName, Value) LibPcdSetEx16 ((Guid), _PCD_TOKEN_##TokenName, (Value))
	#define PcdSetEx32(Guid, TokenName, Value) LibPcdSetEx32 ((Guid), _PCD_TOKEN_##TokenName, (Value))
	#define PcdSetEx64(Guid, TokenName, Value) LibPcdSetEx64 ((Guid), _PCD_TOKEN_##TokenName, (Value))
	#define PcdSetExPtr(Guid, TokenName, SizeOfBuffer, Buffer) \
	LibPcdSetExPtr ((Guid), _PCD_TOKEN_##TokenName, (SizeOfBuffer), (Buffer))
	#define PcdSetExBool(Guid, TokenName, Value) \
	LibPcdSetExBool((Guid), _PCD_TOKEN_##TokenName, (Value))


	/**
	Sets the current SKU in the PCD database to the value specified by SkuId. SkuId is returned.

	@param[in] SkuId The SKU value that will be used when the PCD service will retrieve and
	set values associated with a PCD token.

	@retval SKU_ID Return the SKU ID that just be set.

	**/
	UINTN
	EFIAPI
	LibPcdSetSku (
	IN UINTN SkuId
	);


	/**
	Returns the 8-bit value for the token specified by TokenNumber.

	@param[in] The PCD token number to retrieve a current value for.

	@retval UINT8 Returns the 8-bit value for the token specified by TokenNumber.

	**/
	UINT8
	EFIAPI
	LibPcdGet8 (
	IN UINTN TokenNumber
	);


	/**
	Returns the 16-bit value for the token specified by TokenNumber.

	@param[in] The PCD token number to retrieve a current value for.

	@retval UINT16 Returns the 16-bit value for the token specified by TokenNumber.

	**/
	UINT16
	EFIAPI
	LibPcdGet16 (
	IN UINTN TokenNumber
	);


	/**
	Returns the 32-bit value for the token specified by TokenNumber.

	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT32 Returns the 32-bit value for the token specified by TokenNumber.

	**/
	UINT32
	EFIAPI
	LibPcdGet32 (
	IN UINTN TokenNumber
	);


	/**
	Returns the 64-bit value for the token specified by TokenNumber.

	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT64 Returns the 64-bit value for the token specified by TokenNumber.

	**/
	UINT64
	EFIAPI
	LibPcdGet64 (
	IN UINTN TokenNumber
	);


	/**
	Returns the pointer to the buffer of the token specified by TokenNumber.

	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval VOID* Returns the pointer to the token specified by TokenNumber.

	**/
	VOID *
	EFIAPI
	LibPcdGetPtr (
	IN UINTN TokenNumber
	);


	/**
	Returns the Boolean value of the token specified by TokenNumber.

	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval BOOLEAN Returns the Boolean value of the token specified by TokenNumber.

	**/
	BOOLEAN
	EFIAPI
	LibPcdGetBool (
	IN UINTN TokenNumber
	);


	/**
	Returns the size of the token specified by TokenNumber.

	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINTN Returns the size of the token specified by TokenNumber.

	**/
	UINTN
	EFIAPI
	LibPcdGetSize (
	IN UINTN TokenNumber
	);


	/**
	Returns the 8-bit value for the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT8 Return the UINT8.

	**/
	UINT8
	EFIAPI
	LibPcdGetEx8 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the 16-bit value for the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT16 Return the UINT16.

	**/
	UINT16
	EFIAPI
	LibPcdGetEx16 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the 32-bit value for the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT32 Return the UINT32.

	**/
	UINT32
	EFIAPI
	LibPcdGetEx32 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the 64-bit value for the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINT64 Return the UINT64.

	**/
	UINT64
	EFIAPI
	LibPcdGetEx64 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the pointer to the buffer of token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval VOID* Return the VOID* pointer.

	**/
	VOID *
	EFIAPI
	LibPcdGetExPtr (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the Boolean value of the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval BOOLEAN Return the BOOLEAN.

	**/
	BOOLEAN
	EFIAPI
	LibPcdGetExBool (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Returns the size of the token specified by TokenNumber and Guid.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates
	which namespace to retrieve a value from.
	@param[in] TokenNumber The PCD token number to retrieve a current value for.

	@retval UINTN Return the size.

	**/
	UINTN
	EFIAPI
	LibPcdGetExSize (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber
	);


	/**
	Sets the 8-bit value for the token specified by TokenNumber
	to the value specified by Value. Value is returned.

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 8-bit value to set.

	@retval UINT8 Return the value been set.

	**/
	UINT8
	EFIAPI
	LibPcdSet8 (
	IN UINTN TokenNumber,
	IN UINT8 Value
	);


	/**
	Sets the 16-bit value for the token specified by TokenNumber
	to the value specified by Value. Value is returned.

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 16-bit value to set.

	@retval UINT16 Return the value been set.

	**/
	UINT16
	EFIAPI
	LibPcdSet16 (
	IN UINTN TokenNumber,
	IN UINT16 Value
	);


	/**
	Sets the 32-bit value for the token specified by TokenNumber
	to the value specified by Value. Value is returned.

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 32-bit value to set.

	@retval UINT32 Return the value been set.

	**/
	UINT32
	EFIAPI
	LibPcdSet32 (
	IN UINTN TokenNumber,
	IN UINT32 Value
	);


	/**
	Sets the 64-bit value for the token specified by TokenNumber
	to the value specified by Value. Value is returned.

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 64-bit value to set.

	@retval UINT64 Return the value been set.

	**/
	UINT64
	EFIAPI
	LibPcdSet64 (
	IN UINTN TokenNumber,
	IN UINT64 Value
	);


	/**
	Sets a buffer for the token specified by TokenNumber to the value
	specified by Buffer and SizeOfValue. Buffer is returned.
	If SizeOfValue is greater than the maximum size support by TokenNumber,
	then set SizeOfValue to the maximum size supported by TokenNumber and
	return NULL to indicate that the set operation was not actually performed.

	If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to the
	maximum size supported by TokenName and NULL must be returned.

	If SizeOfValue is NULL, then ASSERT().
	If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in,out] SizeOfBuffer The size, in bytes, of Buffer.
	@param[in] Value A pointer to the buffer to set.

	@retval VOID* Return the pointer for the buffer been set.

	**/
	VOID*
	EFIAPI
	LibPcdSetPtr (
	IN UINTN TokenNumber,
	IN OUT UINTN *SizeOfBuffer,
	IN VOID *Buffer
	);


	/**
	Sets the Boolean value for the token specified by TokenNumber
	to the value specified by Value. Value is returned.

	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The boolean value to set.

	@retval BOOLEAN Return the value been set.

	**/
	BOOLEAN
	EFIAPI
	LibPcdSetBool (
	IN UINTN TokenNumber,
	IN BOOLEAN Value
	);


	/**
	Sets the 8-bit value for the token specified by TokenNumber and
	Guid to the value specified by Value. Value is returned.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 8-bit value to set.

	@retval UINT8 Return the value been set.

	**/
	UINT8
	EFIAPI
	LibPcdSetEx8 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN UINT8 Value
	);


	/**
	Sets the 16-bit value for the token specified by TokenNumber and
	Guid to the value specified by Value. Value is returned.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 16-bit value to set.

	@retval UINT8 Return the value been set.

	**/
	UINT16
	EFIAPI
	LibPcdSetEx16 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN UINT16 Value
	);


	/**
	Sets the 32-bit value for the token specified by TokenNumber and
	Guid to the value specified by Value. Value is returned.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 32-bit value to set.

	@retval UINT32 Return the value been set.

	**/
	UINT32
	EFIAPI
	LibPcdSetEx32 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN UINT32 Value
	);


	/**
	Sets the 64-bit value for the token specified by TokenNumber and
	Guid to the value specified by Value. Value is returned.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The 64-bit value to set.

	@retval UINT64 Return the value been set.

	**/
	UINT64
	EFIAPI
	LibPcdSetEx64 (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN UINT64 Value
	);


	/**
	Sets a buffer for the token specified by TokenNumber to the value specified by
	Buffer and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
	the maximum size support by TokenNumber, then set SizeOfValue to the maximum size
	supported by TokenNumber and return NULL to indicate that the set operation
	was not actually performed.

	If Guid is NULL, then ASSERT().
	If SizeOfValue is NULL, then ASSERT().
	If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in, out] SizeOfBuffer The size, in bytes, of Buffer.
	@param[in] Buffer A pointer to the buffer to set.

	@retval VOID * Return the pinter to the buffer been set.

	**/
	VOID *
	EFIAPI
	LibPcdSetExPtr (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN OUT UINTN *SizeOfBuffer,
	IN VOID *Buffer
	);


	/**
	Sets the Boolean value for the token specified by TokenNumber and
	Guid to the value specified by Value. Value is returned.
	If Guid is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that
	designates which namespace to set a value from.
	@param[in] TokenNumber The PCD token number to set a current value for.
	@param[in] Value The Boolean value to set.

	@retval Boolean Return the value been set.

	**/
	BOOLEAN
	EFIAPI
	LibPcdSetExBool (
	IN CONST GUID *Guid,
	IN UINTN TokenNumber,
	IN BOOLEAN Value
	);


	/**
	When the token specified by TokenNumber and Guid is set,
	then notification function specified by NotificationFunction is called.
	If Guid is NULL, then the default token space is used.
	If NotificationFunction is NULL, then ASSERT().

	This notification function serves two purposes. Firstly, it notifies the module which
	did the registration that the value of this PCD token has been set. Secondly,
	it provides a mechanism for the module which did the registration to intercept
	the set operation and override the value been set if necessary. After the invocation
	of the callback function, TokenData will be used by PCD service PEIM or driver to
	modify the internal data in PCD database.


	@param[in] CallBackGuid The PCD token GUID being set.
	@param[in] CallBackToken The PCD token number being set.
	@param[in, out] TokenData A pointer to the token data being set.
	@param[in] TokenDataSize The size, in bytes, of the data being set.

	@retval VOID

	**/
	typedef
	VOID
	(EFIAPI *PCD_CALLBACK) (
	IN CONST GUID *CallBackGuid, OPTIONAL
	IN UINTN CallBackToken,
	IN OUT VOID *TokenData,
	IN UINTN TokenDataSize
	);


	/**
	When the token specified by TokenNumber and Guid is set,
	then notification function specified by NotificationFunction is called.
	If Guid is NULL, then the default token space is used.
	If NotificationFunction is NULL, then ASSERT().

	@param[in] Guid Pointer to a 128-bit unique value that designates which
	namespace to set a value from. If NULL, then the default
	token space is used.
	@param[in] TokenNumber The PCD token number to monitor.
	@param[in] NotificationFunction The function to call when the token
	specified by Guid and TokenNumber is set.

	@retval VOID

	**/
	VOID
	EFIAPI
	LibPcdCallbackOnSet (
	IN CONST GUID *Guid, OPTIONAL
	IN UINTN TokenNumber,
	IN PCD_CALLBACK NotificationFunction
	);


	/**
	Disable a notification function that was established with LibPcdCallbackonSet().

	@param[in] Guid Specify the GUID token space.
	@param[in] TokenNumber Specify the token number.
	@param[in] NotificationFunction The callback function to be unregistered.

	@retval VOID

	**/
	VOID
	EFIAPI
	LibPcdCancelCallback (
	IN CONST GUID *Guid, OPTIONAL
	IN UINTN TokenNumber,
	IN PCD_CALLBACK NotificationFunction
	);


	/**
	Retrieves the next PCD token number from the token space specified by Guid.
	If Guid is NULL, then the default token space is used. If TokenNumber is 0,
	then the first token number is returned. Otherwise, the token number that
	follows TokenNumber in the token space is returned. If TokenNumber is the last
	token number in the token space, then 0 is returned. If TokenNumber is not 0 and
	is not in the token space specified by Guid, then ASSERT().

	@param[in] Pointer to a 128-bit unique value that designates which namespace
	to set a value from. If NULL, then the default token space is used.
	@param[in] The previous PCD token number. If 0, then retrieves the first PCD
	token number.

	@retval UINTN The next valid token number.

	**/
	UINTN
	EFIAPI
	LibPcdGetNextToken (
	IN CONST GUID *Guid, OPTIONAL
	IN UINTN TokenNumber
	);



	/**
	Retrieves the next PCD token space from a token space specified by Guid.
	Guid of NULL is reserved to mark the default local token namespace on the current
	platform. If Guid is NULL, then the GUID of the first non-local token space of the
	current platform is returned. If Guid is the last non-local token space,
	then NULL is returned.

	If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().



	@param[in] Guid Pointer to a 128-bit unique value that designates from which namespace
	to start the search.

	@retval CONST GUID * The next valid token namespace.

	**/
	GUID *
	EFIAPI
	LibPcdGetNextTokenSpace (
	IN CONST GUID *Guid
	);


	/**
	Sets the PCD entry specified by PatchVariable to the value specified by Buffer
	and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
	MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return
	NULL to indicate that the set operation was not actually performed.
	If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to
	MaximumDatumSize and NULL must be returned.

	If PatchVariable is NULL, then ASSERT().
	If SizeOfValue is NULL, then ASSERT().
	If SizeOfValue > 0 and Buffer is NULL, then ASSERT().

	@param[in] PatchVariable A pointer to the global variable in a module that is
	the target of the set operation.
	@param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.
	@param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.
	@param[in] Buffer A pointer to the buffer to used to set the target variable.

	**/
	VOID *
	EFIAPI
	LibPatchPcdSetPtr (
	IN VOID *PatchVariable,
	IN UINTN MaximumDatumSize,
	IN OUT UINTN *SizeOfBuffer,
	IN CONST VOID *Buffer
	);

	#endif