[mirror_edk2.git] / MdePkg / Include / Ppi / PiPcd.h

/** @file\r
  Platform Configuration Database (PCD) Protocol defined in PI 1.2 Vol3\r
\r
  A platform database that contains a variety of current platform settings or \r
  directives that can be accessed by a driver or application.\r
  PI PCD protocol only provide the accessing interfaces for Dynamic-Ex type PCD.\r
  \r
  Callers to this protocol must be at a TPL_APPLICATION task priority level.\r
  This is the base PCD service API that provides an abstraction for accessing configuration content in\r
  the platform. It a seamless mechanism for extracting information regardless of where the\r
  information is stored (such as in Read-only data, or an EFI Variable).\r
  This protocol allows access to data through size-granular APIs and provides a mechanism for a\r
  firmware component to monitor specific settings and be alerted when a setting is changed.\r
\r
  Copyright (c) 2009, 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
  @par Revision Reference: \r
  PI Version 1.2 Vol 3.\r
**/\r
\r
#ifndef __PI_PCD_PPI_H__\r
#define __PI_PCD_PPI_H__\r
\r
extern EFI_GUID gEfiPeiPcdPpiGuid;\r
\r
#define EFI_PEI_PCD_PPI_GUID \\r
  { 0x1f34d25, 0x4de2, 0x23ad, { 0x3f, 0xf3, 0x36, 0x35, 0x3f, 0xf3, 0x23, 0xf1 } }\r
\r
#define EFI_PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)\r
\r
/**\r
  SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. SetSku() is\r
  normally called only once by the system.\r
  For each item (token), the database can hold a single value that applies to all SKUs, or multiple\r
  values, where each value is associated with a specific SKU Id. Items with multiple, SKU-specific\r
  values are called SKU enabled.\r
  The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255. For tokens that are\r
  not SKU enabled, the system ignores any set SKU Id and works with the single value for that token.\r
  For SKU-enabled tokens, the system will use the SKU Id set by the last call to SetSku(). If no\r
  SKU Id is set or the currently set SKU Id isn't valid for the specified token, the system uses the\r
  default SKU Id. If the system attempts to use the default SKU Id and no value has been set for that\r
  Id, the results are unpredictable.\r
  \r
  @param[in]    SkuId   The SKU value to set.\r
**/\r
typedef\r
VOID\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_SKU)(\r
  IN UINTN SkuId\r
);\r
\r
/**\r
  Retrieves the current byte-sized value for a PCD token number. If the TokenNumber is invalid,\r
  the results are unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
  \r
  @return 8-bit value for a given PCD token.\r
**/\r
typedef\r
UINT8\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_8)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current byte-sized value for a PCD token number. If the TokenNumber is invalid,\r
  the results are unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
  \r
  @return 16-bit value for a given PCD token.\r
**/\r
typedef\r
UINT16\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_16)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current 32-bit value for a PCD token number. If the TokenNumber is invalid, the\r
  results are unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
  \r
  @return 32-bit value for a given PCD token.  \r
**/\r
typedef\r
UINT32\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_32)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current 64-bit value for a PCD token number. If the TokenNumber is invalid, the\r
  results are unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
  \r
  @return 64-bit value for a given PCD token.  \r
**/\r
typedef\r
UINT64\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_64)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current pointer to the value for a PCD token number. There should not be any\r
  alignment assumptions about the pointer that is returned by this function call. If the TokenNumber\r
  is invalid, the results are unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
**/\r
typedef\r
VOID *\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_POINTER)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current Boolean-sized value for a PCD token number. If the TokenNumber is\r
  invalid, the results are unpredictable.\r
\r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.\r
  \r
  @return Boolean value for a given PCD token.\r
**/\r
typedef\r
BOOLEAN\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_BOOLEAN)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Retrieves the current size of a particular PCD token. If the TokenNumber is invalid, the results are\r
  unpredictable.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number.  \r
  \r
  @return the size of the value for a given PCD token.\r
**/\r
typedef\r
UINTN\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_SIZE)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber\r
);\r
\r
/**\r
  Sets an 8-bit value for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    Value         The value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_8)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN        UINT8     Value\r
);\r
\r
/**\r
  Sets an 16-bit value for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    Value         The value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_16)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN        UINT16    Value\r
);\r
\r
/**\r
  Sets an 32-bit value for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    Value         The value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_32)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN        UINT32    Value\r
);\r
\r
/**\r
  Sets an 64-bit value for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    Value         The value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_64)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN        UINT64    Value\r
);\r
\r
/**\r
  Sets a value of the specified size for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    SizeOfValue   The length of the Value being set for the PCD token.\r
  @param[in]    Buffer        A pointer to the buffer containing the value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_POINTER)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN OUT    UINTN     *SizeOfValue,\r
  IN        VOID      *Buffer\r
);\r
\r
/**\r
  Sets a Boolean value for a given PCD token.\r
  \r
  When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
  compatible with the Token's existing definition. If it is not, an error will be returned.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  @param[in]    Value         The value to set for the PCD token.\r
  \r
  @retval   EFI_SUCCESS             The PCD service has set the value requested\r
  @retval   EFI_INVALID_PARAMETER   The PCD service determined that the size of the data being set was\r
                                    incompatible with a call to this function. Use GetSizeEx() to\r
                                    retrieve the size of the target data.\r
  @retval   EFI_NOT_FOUND           The PCD service could not find the requested token number.                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_BOOLEAN)(\r
  IN CONST  EFI_GUID  *Guid,\r
  IN        UINTN     TokenNumber,\r
  IN        BOOLEAN   Value\r
);\r
\r
typedef\r
VOID\r
(EFIAPI *EFI_PCD_PPI_CALLBACK)(\r
  IN EFI_GUID *Guid     OPTIONAL,\r
  IN UINTN    CallBackToken,\r
  IN VOID     *TokenData,\r
  IN UINTN    TokenDatSize\r
);\r
\r
/**\r
  Specifies a function to be called anytime the value of a designated token is changed.\r
  \r
  @param[in]    Guid              The 128-bit unique value that designates which namespace to monitor. If NULL, use\r
                                  the standard platform namespace.\r
  @param[in]    CallBackToken     The PCD token number to monitor.\r
  @param[in]    CallBackFunction  The function prototype that will be called when the value associated with the\r
                                  CallBackToken is set.\r
\r
  @retval EFI_SUCCESS     The PCD service has successfully established a call event for the\r
                          CallBackToken requested.\r
  @retval EFI_NOT_FOUND   The PCD service could not find the referenced token number.                       \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_CALLBACK_ON_SET)(\r
  IN CONST  EFI_GUID          *Guid   OPTIONAL,\r
  IN        UINTN             CallBackToken,\r
  IN        EFI_PCD_PPI_CALLBACK  CallBackFunction\r
);\r
\r
/**\r
  Cancels a previously set callback function for a particular PCD token number.\r
  \r
  @param[in]  Guid              The 128-bit unique value that designates which namespace to monitor. If NULL, use\r
                                the standard platform namespace.\r
  @param[in]  CallBackToken     The PCD token number to cancel monitoring.\r
  @param[in]  CallBackFunction  The function prototype that was originally passed to the CallBackOnSet function.\r
  \r
  @retval     EFI_SUCCESS       The PCD service has cancelled the call event associated with the\r
                                CallBackToken.\r
  @retval     EFI_INVALID_PARAMETER   The PCD service did not match the CallBackFunction to one\r
                                      that is currently being monitored.\r
  @retval     EFI_NOT_FOUND     The PCD service could not find data the requested token number.                                 \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_CANCEL_CALLBACK)(\r
  IN CONST  EFI_GUID          *Guid   OPTIONAL,\r
  IN        UINTN             CallBackToken,\r
  IN        EFI_PCD_PPI_CALLBACK  CallBackFunction\r
);\r
\r
/**\r
  Retrieves the next valid PCD token for a given namespace.\r
  \r
  This provides a means by which to get the next valid token number in a given namespace. This is\r
  useful since the PCD infrastructure has a sparse list of token numbers in it, and one cannot a priori\r
  know what token numbers are valid in the database.\r
  \r
  @param[in]    Guid          The 128-bit unique value that designates which namespace to extract the value from.\r
  @param[in]    TokenNumber   The PCD token number. \r
  \r
  @retval   EFI_SUCCESS       The PCD service has retrieved the value requested.\r
  @retval   EFI_NOT_FOUND     The PCD service could not find data from the requested token number.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_NEXT_TOKEN)(\r
  IN CONST  EFI_GUID      *Guid     OPTIONAL,\r
  IN        UINTN         *TokenNumber\r
);\r
\r
/**\r
  Retrieves the next valid PCD token namespace for a given namespace.\r
  \r
  Gets the next valid token namespace for a given namespace. This is useful to traverse the valid\r
  token namespaces on a platform.\r
  \r
  @param[in, out]   Guid    An indirect pointer to EFI_GUID. On input it designates a known token\r
                            namespace from which the search will start. On output, it designates the next valid\r
                            token namespace on the platform. If *Guid is NULL, then the GUID of the first token\r
                            space of the current platform is returned. If the search cannot locate the next valid\r
                            token namespace, an error is returned and the value of *Guid is undefined.\r
                            \r
  @retval  EFI_SUCCESS      The PCD service retrieved the value requested.\r
  @retval  EFI_NOT_FOUND    The PCD service could not find the next valid token namespace.                     \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE)(\r
  IN OUT CONST EFI_GUID     **Guid\r
);\r
\r
typedef struct {\r
  EFI_PEI_PCD_PPI_SET_SKU               SetSku;\r
  EFI_PEI_PCD_PPI_GET_EX_8              GetEx8;\r
  EFI_PEI_PCD_PPI_GET_EX_16             GetEx16;\r
  EFI_PEI_PCD_PPI_GET_EX_32             GetEx32;\r
  EFI_PEI_PCD_PPI_GET_EX_64             GetEx64;\r
  EFI_PEI_PCD_PPI_GET_EX_POINTER        GetExPtr;\r
  EFI_PEI_PCD_PPI_GET_EX_BOOLEAN        GetExBool;\r
  EFI_PEI_PCD_PPI_GET_EX_SIZE           GetExSize;\r
  EFI_PEI_PCD_PPI_SET_EX_8              SetEx8;\r
  EFI_PEI_PCD_PPI_SET_EX_16             SetEx16;\r
  EFI_PEI_PCD_PPI_SET_EX_32             SetEx32;\r
  EFI_PEI_PCD_PPI_SET_EX_64             SetEx64;\r
  EFI_PEI_PCD_PPI_SET_EX_POINTER        SetExPtr;\r
  EFI_PEI_PCD_PPI_SET_EX_BOOLEAN        SetExBool;\r
  EFI_PEI_PCD_PPI_CALLBACK_ON_SET       CallbackOnSet;\r
  EFI_PEI_PCD_PPI_CANCEL_CALLBACK       CancelCallback;\r
  EFI_PEI_PCD_PPI_GET_NEXT_TOKEN        GetNextToken;\r
  EFI_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE  GetNextTokenSpace;\r
} EFI_PEI_PCD_PPI;\r
\r
#endif\r
Commit	Line	Data
be35570d	1	/** @file\r
	2	Platform Configuration Database (PCD) Protocol defined in PI 1.2 Vol3\r
	3	\r
	4	A platform database that contains a variety of current platform settings or \r
	5	directives that can be accessed by a driver or application.\r
	6	PI PCD protocol only provide the accessing interfaces for Dynamic-Ex type PCD.\r
	7	\r
	8	Callers to this protocol must be at a TPL_APPLICATION task priority level.\r
	9	This is the base PCD service API that provides an abstraction for accessing configuration content in\r
	10	the platform. It a seamless mechanism for extracting information regardless of where the\r
	11	information is stored (such as in Read-only data, or an EFI Variable).\r
	12	This protocol allows access to data through size-granular APIs and provides a mechanism for a\r
	13	firmware component to monitor specific settings and be alerted when a setting is changed.\r
	14	\r
	15	Copyright (c) 2009, Intel Corporation \r
	16	All rights reserved. This program and the accompanying materials \r
	17	are licensed and made available under the terms and conditions of the BSD License \r
	18	which accompanies this distribution. The full text of the license may be found at \r
	19	http://opensource.org/licenses/bsd-license.php \r
	20	\r
	21	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	22	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	23	\r
	24	@par Revision Reference: \r
	25	PI Version 1.2 Vol 3.\r
	26	**/\r
	27	\r
	28	#ifndef __PI_PCD_PPI_H__\r
	29	#define __PI_PCD_PPI_H__\r
	30	\r
	31	extern EFI_GUID gEfiPeiPcdPpiGuid;\r
	32	\r
	33	#define EFI_PEI_PCD_PPI_GUID \\r
	34	{ 0x1f34d25, 0x4de2, 0x23ad, { 0x3f, 0xf3, 0x36, 0x35, 0x3f, 0xf3, 0x23, 0xf1 } }\r
	35	\r
	36	#define EFI_PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)\r
	37	\r
	38	/**\r
	39	SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. SetSku() is\r
	40	normally called only once by the system.\r
	41	For each item (token), the database can hold a single value that applies to all SKUs, or multiple\r
	42	values, where each value is associated with a specific SKU Id. Items with multiple, SKU-specific\r
	43	values are called SKU enabled.\r
	44	The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255. For tokens that are\r
	45	not SKU enabled, the system ignores any set SKU Id and works with the single value for that token.\r
	46	For SKU-enabled tokens, the system will use the SKU Id set by the last call to SetSku(). If no\r
fa3e7746	47	SKU Id is set or the currently set SKU Id isn't valid for the specified token, the system uses the\r
be35570d	48	default SKU Id. If the system attempts to use the default SKU Id and no value has been set for that\r
	49	Id, the results are unpredictable.\r
	50	\r
	51	@param[in] SkuId The SKU value to set.\r
	52	**/\r
	53	typedef\r
	54	VOID\r
	55	(EFIAPI *EFI_PEI_PCD_PPI_SET_SKU)(\r
	56	IN UINTN SkuId\r
	57	);\r
	58	\r
	59	/**\r
	60	Retrieves the current byte-sized value for a PCD token number. If the TokenNumber is invalid,\r
	61	the results are unpredictable.\r
	62	\r
	63	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	64	@param[in] TokenNumber The PCD token number.\r
	65	\r
	66	@return 8-bit value for a given PCD token.\r
	67	**/\r
	68	typedef\r
	69	UINT8\r
	70	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_8)(\r
	71	IN CONST EFI_GUID *Guid,\r
	72	IN UINTN TokenNumber\r
	73	);\r
	74	\r
	75	/**\r
	76	Retrieves the current byte-sized value for a PCD token number. If the TokenNumber is invalid,\r
	77	the results are unpredictable.\r
	78	\r
	79	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	80	@param[in] TokenNumber The PCD token number.\r
	81	\r
	82	@return 16-bit value for a given PCD token.\r
	83	**/\r
	84	typedef\r
	85	UINT16\r
	86	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_16)(\r
	87	IN CONST EFI_GUID *Guid,\r
	88	IN UINTN TokenNumber\r
	89	);\r
	90	\r
	91	/**\r
	92	Retrieves the current 32-bit value for a PCD token number. If the TokenNumber is invalid, the\r
	93	results are unpredictable.\r
	94	\r
	95	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	96	@param[in] TokenNumber The PCD token number.\r
	97	\r
	98	@return 32-bit value for a given PCD token. \r
	99	**/\r
	100	typedef\r
	101	UINT32\r
	102	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_32)(\r
	103	IN CONST EFI_GUID *Guid,\r
	104	IN UINTN TokenNumber\r
	105	);\r
	106	\r
39ef213c	107	/**\r
	108	Retrieves the current 64-bit value for a PCD token number. If the TokenNumber is invalid, the\r
	109	results are unpredictable.\r
	110	\r
	111	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	112	@param[in] TokenNumber The PCD token number.\r
	113	\r
	114	@return 64-bit value for a given PCD token. \r
	115	**/\r
	116	typedef\r
9136fc3c	117	UINT64\r
39ef213c	118	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_64)(\r
	119	IN CONST EFI_GUID *Guid,\r
	120	IN UINTN TokenNumber\r
	121	);\r
	122	\r
be35570d	123	/**\r
	124	Retrieves the current pointer to the value for a PCD token number. There should not be any\r
	125	alignment assumptions about the pointer that is returned by this function call. If the TokenNumber\r
	126	is invalid, the results are unpredictable.\r
	127	\r
	128	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	129	@param[in] TokenNumber The PCD token number.\r
	130	**/\r
	131	typedef\r
	132	VOID *\r
	133	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_POINTER)(\r
	134	IN CONST EFI_GUID *Guid,\r
	135	IN UINTN TokenNumber\r
	136	);\r
	137	\r
	138	/**\r
	139	Retrieves the current Boolean-sized value for a PCD token number. If the TokenNumber is\r
	140	invalid, the results are unpredictable.\r
	141	\r
	142	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	143	@param[in] TokenNumber The PCD token number.\r
	144	\r
	145	@return Boolean value for a given PCD token.\r
	146	**/\r
	147	typedef\r
	148	BOOLEAN\r
	149	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_BOOLEAN)(\r
	150	IN CONST EFI_GUID *Guid,\r
	151	IN UINTN TokenNumber\r
	152	);\r
	153	\r
	154	/**\r
	155	Retrieves the current size of a particular PCD token. If the TokenNumber is invalid, the results are\r
	156	unpredictable.\r
	157	\r
	158	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	159	@param[in] TokenNumber The PCD token number. \r
	160	\r
	161	@return the size of the value for a given PCD token.\r
	162	**/\r
	163	typedef\r
	164	UINTN\r
	165	(EFIAPI *EFI_PEI_PCD_PPI_GET_EX_SIZE)(\r
	166	IN CONST EFI_GUID *Guid,\r
	167	IN UINTN TokenNumber\r
	168	);\r
	169	\r
	170	/**\r
	171	Sets an 8-bit value for a given PCD token.\r
	172	\r
	173	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	174	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	175	\r
	176	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	177	@param[in] TokenNumber The PCD token number. \r
	178	@param[in] Value The value to set for the PCD token.\r
	179	\r
	180	@retval EFI_SUCCESS The PCD service has set the value requested\r
	181	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	182	incompatible with a call to this function. Use GetSizeEx() to\r
	183	retrieve the size of the target data.\r
	184	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	185	**/\r
	186	typedef\r
	187	EFI_STATUS\r
	188	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_8)(\r
	189	IN CONST EFI_GUID *Guid,\r
	190	IN UINTN TokenNumber,\r
	191	IN UINT8 Value\r
	192	);\r
	193	\r
	194	/**\r
	195	Sets an 16-bit value for a given PCD token.\r
	196	\r
	197	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	198	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	199	\r
	200	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	201	@param[in] TokenNumber The PCD token number. \r
	202	@param[in] Value The value to set for the PCD token.\r
	203	\r
	204	@retval EFI_SUCCESS The PCD service has set the value requested\r
	205	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	206	incompatible with a call to this function. Use GetSizeEx() to\r
	207	retrieve the size of the target data.\r
	208	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	209	**/\r
	210	typedef\r
	211	EFI_STATUS\r
	212	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_16)(\r
	213	IN CONST EFI_GUID *Guid,\r
	214	IN UINTN TokenNumber,\r
	215	IN UINT16 Value\r
	216	);\r
	217	\r
	218	/**\r
	219	Sets an 32-bit value for a given PCD token.\r
	220	\r
	221	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	222	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	223	\r
	224	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	225	@param[in] TokenNumber The PCD token number. \r
	226	@param[in] Value The value to set for the PCD token.\r
	227	\r
	228	@retval EFI_SUCCESS The PCD service has set the value requested\r
	229	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	230	incompatible with a call to this function. Use GetSizeEx() to\r
	231	retrieve the size of the target data.\r
	232	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	233	**/\r
	234	typedef\r
	235	EFI_STATUS\r
	236	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_32)(\r
	237	IN CONST EFI_GUID *Guid,\r
	238	IN UINTN TokenNumber,\r
	239	IN UINT32 Value\r
	240	);\r
	241	\r
	242	/**\r
	243	Sets an 64-bit value for a given PCD token.\r
	244	\r
	245	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	246	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	247	\r
	248	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	249	@param[in] TokenNumber The PCD token number. \r
	250	@param[in] Value The value to set for the PCD token.\r
	251	\r
	252	@retval EFI_SUCCESS The PCD service has set the value requested\r
	253	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	254	incompatible with a call to this function. Use GetSizeEx() to\r
	255	retrieve the size of the target data.\r
	256	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	257	**/\r
	258	typedef\r
	259	EFI_STATUS\r
	260	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_64)(\r
	261	IN CONST EFI_GUID *Guid,\r
	262	IN UINTN TokenNumber,\r
	263	IN UINT64 Value\r
	264	);\r
	265	\r
	266	/**\r
	267	Sets a value of the specified size for a given PCD token.\r
	268	\r
	269	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	270	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	271	\r
	272	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	273	@param[in] TokenNumber The PCD token number. \r
	274	@param[in] SizeOfValue The length of the Value being set for the PCD token.\r
	275	@param[in] Buffer A pointer to the buffer containing the value to set for the PCD token.\r
	276	\r
	277	@retval EFI_SUCCESS The PCD service has set the value requested\r
	278	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	279	incompatible with a call to this function. Use GetSizeEx() to\r
	280	retrieve the size of the target data.\r
	281	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	282	**/\r
	283	typedef\r
	284	EFI_STATUS\r
	285	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_POINTER)(\r
	286	IN CONST EFI_GUID *Guid,\r
	287	IN UINTN TokenNumber,\r
9136fc3c	288	IN OUT UINTN *SizeOfValue,\r
be35570d	289	IN VOID *Buffer\r
	290	);\r
	291	\r
	292	/**\r
	293	Sets a Boolean value for a given PCD token.\r
	294	\r
	295	When the PCD service sets a value, it will check to ensure that the size of the value being set is\r
fa3e7746	296	compatible with the Token's existing definition. If it is not, an error will be returned.\r
be35570d	297	\r
	298	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	299	@param[in] TokenNumber The PCD token number. \r
	300	@param[in] Value The value to set for the PCD token.\r
	301	\r
	302	@retval EFI_SUCCESS The PCD service has set the value requested\r
	303	@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was\r
	304	incompatible with a call to this function. Use GetSizeEx() to\r
	305	retrieve the size of the target data.\r
	306	@retval EFI_NOT_FOUND The PCD service could not find the requested token number. \r
	307	**/\r
	308	typedef\r
	309	EFI_STATUS\r
	310	(EFIAPI *EFI_PEI_PCD_PPI_SET_EX_BOOLEAN)(\r
	311	IN CONST EFI_GUID *Guid,\r
	312	IN UINTN TokenNumber,\r
	313	IN BOOLEAN Value\r
	314	);\r
	315	\r
	316	typedef\r
	317	VOID\r
39ef213c	318	(EFIAPI *EFI_PCD_PPI_CALLBACK)(\r
be35570d	319	IN EFI_GUID *Guid OPTIONAL,\r
	320	IN UINTN CallBackToken,\r
	321	IN VOID *TokenData,\r
	322	IN UINTN TokenDatSize\r
	323	);\r
	324	\r
	325	/**\r
	326	Specifies a function to be called anytime the value of a designated token is changed.\r
	327	\r
	328	@param[in] Guid The 128-bit unique value that designates which namespace to monitor. If NULL, use\r
	329	the standard platform namespace.\r
	330	@param[in] CallBackToken The PCD token number to monitor.\r
	331	@param[in] CallBackFunction The function prototype that will be called when the value associated with the\r
	332	CallBackToken is set.\r
	333	\r
	334	@retval EFI_SUCCESS The PCD service has successfully established a call event for the\r
	335	CallBackToken requested.\r
	336	@retval EFI_NOT_FOUND The PCD service could not find the referenced token number. \r
	337	**/\r
	338	typedef\r
	339	EFI_STATUS\r
39ef213c	340	(EFIAPI *EFI_PEI_PCD_PPI_CALLBACK_ON_SET)(\r
be35570d	341	IN CONST EFI_GUID *Guid OPTIONAL,\r
be35570d	342	IN UINTN CallBackToken,\r
39ef213c	343	IN EFI_PCD_PPI_CALLBACK CallBackFunction\r
be35570d	344	);\r
	345	\r
	346	/**\r
	347	Cancels a previously set callback function for a particular PCD token number.\r
	348	\r
	349	@param[in] Guid The 128-bit unique value that designates which namespace to monitor. If NULL, use\r
	350	the standard platform namespace.\r
	351	@param[in] CallBackToken The PCD token number to cancel monitoring.\r
	352	@param[in] CallBackFunction The function prototype that was originally passed to the CallBackOnSet function.\r
	353	\r
	354	@retval EFI_SUCCESS The PCD service has cancelled the call event associated with the\r
	355	CallBackToken.\r
	356	@retval EFI_INVALID_PARAMETER The PCD service did not match the CallBackFunction to one\r
	357	that is currently being monitored.\r
	358	@retval EFI_NOT_FOUND The PCD service could not find data the requested token number. \r
	359	**/\r
	360	typedef\r
	361	EFI_STATUS\r
39ef213c	362	(EFIAPI *EFI_PEI_PCD_PPI_CANCEL_CALLBACK)(\r
be35570d	363	IN CONST EFI_GUID *Guid OPTIONAL,\r
be35570d	364	IN UINTN CallBackToken,\r
39ef213c	365	IN EFI_PCD_PPI_CALLBACK CallBackFunction\r
be35570d	366	);\r
	367	\r
	368	/**\r
	369	Retrieves the next valid PCD token for a given namespace.\r
	370	\r
	371	This provides a means by which to get the next valid token number in a given namespace. This is\r
	372	useful since the PCD infrastructure has a sparse list of token numbers in it, and one cannot a priori\r
	373	know what token numbers are valid in the database.\r
	374	\r
	375	@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.\r
	376	@param[in] TokenNumber The PCD token number. \r
	377	\r
	378	@retval EFI_SUCCESS The PCD service has retrieved the value requested.\r
	379	@retval EFI_NOT_FOUND The PCD service could not find data from the requested token number.\r
	380	**/\r
	381	typedef\r
	382	EFI_STATUS\r
	383	(EFIAPI *EFI_PEI_PCD_PPI_GET_NEXT_TOKEN)(\r
	384	IN CONST EFI_GUID *Guid OPTIONAL,\r
	385	IN UINTN *TokenNumber\r
	386	);\r
	387	\r
	388	/**\r
	389	Retrieves the next valid PCD token namespace for a given namespace.\r
	390	\r
	391	Gets the next valid token namespace for a given namespace. This is useful to traverse the valid\r
	392	token namespaces on a platform.\r
	393	\r
	394	@param[in, out] Guid An indirect pointer to EFI_GUID. On input it designates a known token\r
	395	namespace from which the search will start. On output, it designates the next valid\r
	396	token namespace on the platform. If *Guid is NULL, then the GUID of the first token\r
	397	space of the current platform is returned. If the search cannot locate the next valid\r
	398	token namespace, an error is returned and the value of *Guid is undefined.\r
	399	\r
	400	@retval EFI_SUCCESS The PCD service retrieved the value requested.\r
	401	@retval EFI_NOT_FOUND The PCD service could not find the next valid token namespace. \r
	402	**/\r
	403	typedef\r
	404	EFI_STATUS\r
	405	(EFIAPI *EFI_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE)(\r
	406	IN OUT CONST EFI_GUID **Guid\r
	407	);\r
	408	\r
	409	typedef struct {\r
	410	EFI_PEI_PCD_PPI_SET_SKU SetSku;\r
	411	EFI_PEI_PCD_PPI_GET_EX_8 GetEx8;\r
	412	EFI_PEI_PCD_PPI_GET_EX_16 GetEx16;\r
	413	EFI_PEI_PCD_PPI_GET_EX_32 GetEx32;\r
	414	EFI_PEI_PCD_PPI_GET_EX_64 GetEx64;\r
	415	EFI_PEI_PCD_PPI_GET_EX_POINTER GetExPtr;\r
	416	EFI_PEI_PCD_PPI_GET_EX_BOOLEAN GetExBool;\r
	417	EFI_PEI_PCD_PPI_GET_EX_SIZE GetExSize;\r
	418	EFI_PEI_PCD_PPI_SET_EX_8 SetEx8;\r
	419	EFI_PEI_PCD_PPI_SET_EX_16 SetEx16;\r
	420	EFI_PEI_PCD_PPI_SET_EX_32 SetEx32;\r
	421	EFI_PEI_PCD_PPI_SET_EX_64 SetEx64;\r
	422	EFI_PEI_PCD_PPI_SET_EX_POINTER SetExPtr;\r
	423	EFI_PEI_PCD_PPI_SET_EX_BOOLEAN SetExBool;\r
	424	EFI_PEI_PCD_PPI_CALLBACK_ON_SET CallbackOnSet;\r
	425	EFI_PEI_PCD_PPI_CANCEL_CALLBACK CancelCallback;\r
	426	EFI_PEI_PCD_PPI_GET_NEXT_TOKEN GetNextToken;\r
	427	EFI_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE GetNextTokenSpace;\r
	428	} EFI_PEI_PCD_PPI;\r
	429	\r
430	#endif\r