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Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/PiPcd.h')
| -rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/PiPcd.h | 424 |
1 files changed, 424 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/PiPcd.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/PiPcd.h new file mode 100644 index 0000000000..84d2aa444b --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/PiPcd.h @@ -0,0 +1,424 @@ +/** @file + Platform Configuration Database (PCD) Protocol defined in PI 1.2 Vol3 + + A platform database that contains a variety of current platform settings or + directives that can be accessed by a driver or application. + PI PCD protocol only provide the accessing interfaces for Dynamic-Ex type PCD. + + Callers to this protocol must be at a TPL_APPLICATION task priority level. + This is the base PCD service API that provides an abstraction for accessing configuration content in + the platform. It a seamless mechanism for extracting information regardless of where the + information is stored (such as in Read-only data, or an EFI Variable). + This protocol allows access to data through size-granular APIs and provides a mechanism for a + firmware component to monitor specific settings and be alerted when a setting is changed. + + Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR> + 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. + + @par Revision Reference: + PI Version 1.2 Vol 3. +**/ + +#ifndef __PI_PCD_H__ +#define __PI_PCD_H__ + +extern EFI_GUID gEfiPcdProtocolGuid; + +#define EFI_PCD_PROTOCOL_GUID \ + { 0x13a3f0f6, 0x264a, 0x3ef0, { 0xf2, 0xe0, 0xde, 0xc5, 0x12, 0x34, 0x2f, 0x34 } } + +#define EFI_PCD_INVALID_TOKEN_NUMBER ((UINTN) 0) + +/** + 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 to set. +**/ +typedef +VOID +(EFIAPI *EFI_PCD_PROTOCOL_SET_SKU)( + IN UINTN SkuId +); + +/** + Retrieves an 8-bit value for a given PCD token. + If the TokenNumber is invalid, the results are unpredictable. + + @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. + + @return 8-bit value for a given PCD token. +**/ +typedef +UINT8 +(EFIAPI *EFI_PCD_PROTOCOL_GET_8)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the current word-sized value for a PCD token number. + If the TokenNumber is invalid, the results are unpredictable. + + @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. + + @return word-sized value for a given PCD token. +**/ +typedef +UINT16 +(EFIAPI *EFI_PCD_PROTOCOL_GET_16)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the current 32-bit sized value for a PCD token number. + If the TokenNumber is invalid, the results are unpredictable. + + @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. + + @return 32-bit value for a given PCD token. +**/ +typedef +UINT32 +(EFIAPI *EFI_PCD_PROTOCOL_GET_32)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the 64-bit sized value for a PCD token number. + If the TokenNumber is invalid, the results are unpredictable. + + @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. + + @return 64-bit value for a given PCD token. + +**/ +typedef +UINT64 +(EFIAPI *EFI_PCD_PROTOCOL_GET_64)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the current pointer to the 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] Guid The 128-bit unique value that designates the namespace from which to extract the value. + @param[in] TokenNumber The PCD token number. + + @return pointer to a value for a given PCD token. +**/ +typedef +VOID * +(EFIAPI *EFI_PCD_PROTOCOL_GET_POINTER)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the current BOOLEAN-sized value for a PCD token number. If the TokenNumber is + invalid, the results are unpredictable. + + @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. + + @return Boolean value for a given PCD token. +**/ +typedef +BOOLEAN +(EFIAPI *EFI_PCD_PROTOCOL_GET_BOOLEAN)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber +); + +/** + Retrieves the current size of a particular PCD token. If the TokenNumber is invalid, the results are + unpredictable. + + @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. + + @return the size of the value for a given PCD token. +**/ +typedef +UINTN +(EFIAPI *EFI_PCD_PROTOCOL_GET_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] 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 The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_8)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber, + IN UINT8 Value +); + +/** + Sets an 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 The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_16)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber, + IN UINT16 Value +); + +/** + Sets an 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 The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_32)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber, + IN UINT32 Value +); + +/** + Sets an 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 The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_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] SizeOfValue The length of the value being set for the PCD token. If too large of a length is + specified, upon return from this function the value of SizeOfValue will + reflect the maximum size for the PCD token. + @param[in] Buffer A pointer to the buffer containing the value to set for the PCD token. + + @retval EFI_SUCCESS The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_POINTER)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber, + IN OUT UINTN *SizeOfValue, + IN VOID *Buffer +); + +/** + Sets a 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 The PCD service has set the value requested + @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 GetSizeEx() 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 *EFI_PCD_PROTOCOL_SET_BOOLEAN)( + IN CONST EFI_GUID *Guid, + IN UINTN TokenNumber, + IN BOOLEAN Value +); + +typedef +VOID +(EFIAPI *EFI_PCD_PROTOCOL_CALLBACK)( + IN EFI_GUID *Guid 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] Guid The 128-bit unique value that designates the namespace from which to extract the value. + @param[in] CallBackToken The PCD token number to monitor. + @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 *EFI_PCD_PROTOCOL_CALLBACK_ON_SET)( + IN CONST EFI_GUID *Guid OPTIONAL, + IN UINTN CallBackToken, + IN EFI_PCD_PROTOCOL_CALLBACK CallBackFunction +); + +/** + Cancels a callback function that was set through a previous call to the CallBackOnSet function. + + @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value. + @param[in] CallBackToken The PCD token number to monitor. + @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 *EFI_PCD_PROTOCOL_CANCEL_CALLBACK)( + IN CONST EFI_GUID *Guid OPTIONAL, + IN UINTN CallBackToken, + IN EFI_PCD_PROTOCOL_CALLBACK CallBackFunction +); + +/** + Gets the next valid token number in a given namespace. This is useful since the PCD infrastructure + contains a sparse list of token numbers, and one cannot a priori know what token numbers are valid + in the database. + + @param[in] Guid The 128-bit unique value that designates the namespace from which to retrieve the next token. + @param[in] TokenNumber A pointer to the PCD token number to use to find the subsequent token number. To + retrieve the "first" token, have the pointer reference a TokenNumber value of 0. + @retval EFI_SUCCESS The PCD service has retrieved the value requested + @retval EFI_NOT_FOUND The PCD service could not find data from the requested token number. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PCD_PROTOCOL_GET_NEXT_TOKEN)( + IN CONST EFI_GUID *Guid, OPTIONAL + IN UINTN *TokenNumber +); + +/** + Gets the next valid token namespace for a given namespace. This is useful to traverse the valid + token namespaces on a platform. + + @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 *Guid is NULL, then the GUID of the first token + space of the current platform is returned. If the search cannot locate the next valid + token namespace, an error is returned and the value of *Guid is undefined. + + @retval EFI_SUCCESS The PCD service retrieved the value requested. + @retval EFI_NOT_FOUND The PCD service could not find the next valid token namespace. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PCD_PROTOCOL_GET_NEXT_TOKEN_SPACE)( + IN OUT CONST EFI_GUID **Guid +); + +typedef struct _EFI_PCD_PROTOCOL { + EFI_PCD_PROTOCOL_SET_SKU SetSku; + EFI_PCD_PROTOCOL_GET_8 Get8; + EFI_PCD_PROTOCOL_GET_16 Get16; + EFI_PCD_PROTOCOL_GET_32 Get32; + EFI_PCD_PROTOCOL_GET_64 Get64; + EFI_PCD_PROTOCOL_GET_POINTER GetPtr; + EFI_PCD_PROTOCOL_GET_BOOLEAN GetBool; + EFI_PCD_PROTOCOL_GET_SIZE GetSize; + EFI_PCD_PROTOCOL_SET_8 Set8; + EFI_PCD_PROTOCOL_SET_16 Set16; + EFI_PCD_PROTOCOL_SET_32 Set32; + EFI_PCD_PROTOCOL_SET_64 Set64; + EFI_PCD_PROTOCOL_SET_POINTER SetPtr; + EFI_PCD_PROTOCOL_SET_BOOLEAN SetBool; + EFI_PCD_PROTOCOL_CALLBACK_ON_SET CallbackOnSet; + EFI_PCD_PROTOCOL_CANCEL_CALLBACK CancelCallback; + EFI_PCD_PROTOCOL_GET_NEXT_TOKEN GetNextToken; + EFI_PCD_PROTOCOL_GET_NEXT_TOKEN_SPACE GetNextTokenSpace; +} EFI_PCD_PROTOCOL; + +#endif |