audk/MdePkg/Include/Ppi/Pcd.h

860 lines
29 KiB
C

/** @file
Platform Configuration Database (PCD) PPI
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 __PCD_PPI_H__
#define __PCD_PPI_H__
#define PCD_PPI_GUID \
{ 0x6e81c58, 0x4ad7, 0x44bc, { 0x83, 0x90, 0xf1, 0x2, 0x65, 0xf7, 0x24, 0x80 } }
#define PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)
/**
Sets the SKU value for subsequent calls to set or get PCD token values.
SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values.
SetSku() is normally called only once by the system.
For each item (token), the database can hold a single value that applies to all SKUs,
or multiple values, where each value is associated with a specific SKU Id. Items with multiple,
SKU-specific values are called SKU enabled.
The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255.
For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the
single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the
last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token,
the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been
set for that Id, the results are unpredictable.
@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 VOID
**/
typedef
VOID
(EFIAPI *PCD_PPI_SET_SKU)(
IN UINTN SkuId
);
/**
Retrieves an 8-bit value for a given PCD token.
Retrieves the current byte-sized value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT8 value.
**/
typedef
UINT8
(EFIAPI *PCD_PPI_GET8)(
IN UINTN TokenNumber
);
/**
Retrieves a 16-bit value for a given PCD token.
Retrieves the current 16-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT16 value.
**/
typedef
UINT16
(EFIAPI *PCD_PPI_GET16)(
IN UINTN TokenNumber
);
/**
Retrieves a 32-bit value for a given PCD token.
Retrieves the current 32-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT32 value.
**/
typedef
UINT32
(EFIAPI *PCD_PPI_GET32)(
IN UINTN TokenNumber
);
/**
Retrieves a 64-bit value for a given PCD token.
Retrieves the current 64-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT64 value.
**/
typedef
UINT64
(EFIAPI *PCD_PPI_GET64)(
IN UINTN TokenNumber
);
/**
Retrieves a pointer to a value for a given PCD token.
Retrieves the current pointer to the buffer for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The pointer to the buffer to be retrived.
**/
typedef
VOID *
(EFIAPI *PCD_PPI_GET_POINTER)(
IN UINTN TokenNumber
);
/**
Retrieves a Boolean value for a given PCD token.
Retrieves the current boolean value for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The Boolean value.
**/
typedef
BOOLEAN
(EFIAPI *PCD_PPI_GET_BOOLEAN)(
IN UINTN TokenNumber
);
/**
Retrieves the size of the value for a given PCD token.
Retrieves the current size of a particular PCD token.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The size of the value for the PCD token.
**/
typedef
UINTN
(EFIAPI *PCD_PPI_GET_SIZE)(
IN UINTN TokenNumber
);
/**
Retrieves an 8-bit value for a given PCD token and token space.
Retrieves the 8-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 8-bit value for the PCD token.
**/
typedef
UINT8
(EFIAPI *PCD_PPI_GET_EX_8)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves a 16-bit value for a given PCD token and token space.
Retrieves the 16-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 16-bit value for the PCD token.
**/
typedef
UINT16
(EFIAPI *PCD_PPI_GET_EX_16)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves a 32-bit value for a given PCD token and token space.
Retrieves the 32-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 32-bit value for the PCD token.
**/
typedef
UINT32
(EFIAPI *PCD_PPI_GET_EX_32)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves a 64-bit value for a given PCD token and token space.
Retrieves the 64-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 64-bit value for the PCD token.
**/
typedef
UINT64
(EFIAPI *PCD_PPI_GET_EX_64)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves a pointer to a value for a given PCD token and token space.
Retrieves the current pointer to the buffer for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The pointer to the buffer to be retrived.
**/
typedef
VOID *
(EFIAPI *PCD_PPI_GET_EX_POINTER)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves an Boolean value for a given PCD token and token space.
Retrieves the Boolean value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size Boolean value for the PCD token.
**/
typedef
BOOLEAN
(EFIAPI *PCD_PPI_GET_EX_BOOLEAN)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves the size of the value for a given PCD token and token space.
Retrieves the current size of a particular PCD token.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size of the value for the PCD token.
**/
typedef
UINTN
(EFIAPI *PCD_PPI_GET_EX_SIZE)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Sets an 8-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET8)(
IN UINTN TokenNumber,
IN UINT8 Value
);
/**
Sets a 16-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET16)(
IN UINTN TokenNumber,
IN UINT16 Value
);
/**
Sets a 32-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET32)(
IN UINTN TokenNumber,
IN UINT32 Value
);
/**
Sets a 64-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET64)(
IN UINTN TokenNumber,
IN UINT64 Value
);
/**
Sets a value of a specified size for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in, out] SizeOfValue A pointer to the length of the value being set for the PCD token.
On input, if the SizeOfValue is greater than the maximum size supported
for this TokenNumber then the output value of SizeOfValue will reflect
the maximum size supported for this TokenNumber.
@param[in] Buffer The buffer to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_POINTER)(
IN UINTN TokenNumber,
IN OUT UINTN *SizeOfValue,
IN VOID *Buffer
);
/**
Sets an Boolean value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_BOOLEAN)(
IN UINTN TokenNumber,
IN BOOLEAN Value
);
/**
Sets an 8-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_8)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN UINT8 Value
);
/**
Sets a 16-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_16)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN UINT16 Value
);
/**
Sets a 32-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_32)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN UINT32 Value
);
/**
Sets a 64-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_64)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN UINT64 Value
);
/**
Sets a value of a specified size for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in, out] SizeOfValue A pointer to the length of the value being set for the PCD token.
On input, if the SizeOfValue is greater than the maximum size supported
for this TokenNumber then the output value of SizeOfValue will reflect
the maximum size supported for this TokenNumber.
@param[in] Buffer The buffer to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_POINTER)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN OUT UINTN *SizeOfValue,
IN VOID *Buffer
);
/**
Sets an Boolean value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_SET_EX_BOOLEAN)(
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber,
IN BOOLEAN Value
);
/**
Callback on SET function prototype definition.
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 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_PPI_CALLBACK)(
IN CONST EFI_GUID *CallBackGuid, OPTIONAL
IN UINTN CallBackToken,
IN OUT VOID *TokenData,
IN UINTN TokenDataSize
);
/**
Specifies a function to be called anytime the value of a designated token is changed.
@param[in] TokenNumber The PCD token number.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set.
@retval EFI_SUCCESS The PCD service has successfully established a call event
for the CallBackToken requested.
@retval EFI_NOT_FOUND The PCD service could not find the referenced token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_CALLBACK_ONSET)(
IN CONST EFI_GUID *Guid, OPTIONAL
IN UINTN TokenNumber,
IN PCD_PPI_CALLBACK CallBackFunction
);
/**
Cancels a previously set callback function for a particular PCD token number.
@param[in] TokenNumber The PCD token number.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] CallBackFunction The function prototype called when the value associated with the CallBackToken is set.
@retval EFI_SUCCESS The PCD service has successfully established a call event
for the CallBackToken requested.
@retval EFI_NOT_FOUND The PCD service could not find the referenced token number.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_CANCEL_CALLBACK)(
IN CONST EFI_GUID *Guid, OPTIONAL
IN UINTN TokenNumber,
IN PCD_PPI_CALLBACK CallBackFunction
);
/**
Retrieves the next valid PCD token for a given namespace.
If the input token namespace or token number does not exist on the platform, an error is
returned and the value of *TokenNumber is undefined. To retrieve the "first" token,
have the pointer reference a TokenNumber value of 0.
If the input token number is 0 and there is no valid token number for this token namespace,
*TokenNumber will be assigned to 0 and the function return EFI_SUCCESS.
If the token number is the last valid token number, *TokenNumber will be assigned to 0 and
the function return EFI_SUCCESS.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in, out] TokenNumber A pointer to the PCD token number to use to find the subsequent token number.
@retval EFI_SUCCESS The PCD service has retrieved the next valid token number.
Or the input token number is already the last valid token number in the PCD database.
In the later case, *TokenNumber is updated with the value of 0.
@retval EFI_NOT_FOUND If this input token number and token namespace does not exist on the platform.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_GET_NEXT_TOKEN)(
IN CONST EFI_GUID *Guid, OPTIONAL
IN OUT UINTN *TokenNumber
);
/**
Retrieves the next valid PCD token namespace for a given namespace.
If *Guid is NULL, then the GUID of the first token space of the
current platform is assigned to *Guid the function return EFI_SUCCESS.
If *Guid is NULL and there is no namespace exist in the platform other than the default
(NULL) tokennamespace, *Guid is unchanged and the function return EFI_SUCCESS.
If this input token namespace is the last namespace on the platform,
*Guid will be assigned to NULL and the function return EFI_SUCCESS.
@param[in, out] Guid An indirect pointer to EFI_GUID. On input it designates a known
token namespace from which the search will start. On output, it designates
the next valid token namespace on the platform. If the input token namespace
does not exist on the platform, an error is returned and the value of *Guid is
undefined.
@retval EFI_SUCCESS The PCD service has retrieved the next valid token namespace.
Or the input token namespace is already the last valid token
number in the PCD database. In the later case, *Guid is updated
with the value of NULL. Or the input token name space is NULL and there
is no valid token namespace other than the default namespace (NULL).
@retval EFI_NOT_FOUND If the input token namespace does not exist on the platform.
**/
typedef
EFI_STATUS
(EFIAPI *PCD_PPI_GET_NEXT_TOKENSPACE)(
IN OUT CONST EFI_GUID **Guid
);
///
/// This service abstracts the ability to set/get Platform Configuration Database (PCD).
///
typedef struct {
PCD_PPI_SET_SKU SetSku;
PCD_PPI_GET8 Get8;
PCD_PPI_GET16 Get16;
PCD_PPI_GET32 Get32;
PCD_PPI_GET64 Get64;
PCD_PPI_GET_POINTER GetPtr;
PCD_PPI_GET_BOOLEAN GetBool;
PCD_PPI_GET_SIZE GetSize;
PCD_PPI_GET_EX_8 Get8Ex;
PCD_PPI_GET_EX_16 Get16Ex;
PCD_PPI_GET_EX_32 Get32Ex;
PCD_PPI_GET_EX_64 Get64Ex;
PCD_PPI_GET_EX_POINTER GetPtrEx;
PCD_PPI_GET_EX_BOOLEAN GetBoolEx;
PCD_PPI_GET_EX_SIZE GetSizeEx;
PCD_PPI_SET8 Set8;
PCD_PPI_SET16 Set16;
PCD_PPI_SET32 Set32;
PCD_PPI_SET64 Set64;
PCD_PPI_SET_POINTER SetPtr;
PCD_PPI_SET_BOOLEAN SetBool;
PCD_PPI_SET_EX_8 Set8Ex;
PCD_PPI_SET_EX_16 Set16Ex;
PCD_PPI_SET_EX_32 Set32Ex;
PCD_PPI_SET_EX_64 Set64Ex;
PCD_PPI_SET_EX_POINTER SetPtrEx;
PCD_PPI_SET_EX_BOOLEAN SetBoolEx;
PCD_PPI_CALLBACK_ONSET CallbackOnSet;
PCD_PPI_CANCEL_CALLBACK CancelCallback;
PCD_PPI_GET_NEXT_TOKEN GetNextToken;
PCD_PPI_GET_NEXT_TOKENSPACE GetNextTokenSpace;
} PCD_PPI;
extern EFI_GUID gPcdPpiGuid;
#endif