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https://github.com/CloverHackyColor/CloverBootloader.git
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427 lines
18 KiB
C
427 lines
18 KiB
C
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/** @file
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Platform Configuration Database (PCD) PPI defined in PI 1.2 Vol3
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A platform database that contains a variety of current platform settings or
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directives that can be accessed by a driver or application.
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PI PCD ppi only provide the accessing interfaces for Dynamic-Ex type PCD.
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This is the base PCD service API that provides an abstraction for accessing configuration content in
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the platform. It a seamless mechanism for extracting information regardless of where the
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information is stored (such as in Read-only data, or an EFI Variable).
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This protocol allows access to data through size-granular APIs and provides a mechanism for a
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firmware component to monitor specific settings and be alerted when a setting is changed.
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Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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PI Version 1.2 Vol 3.
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**/
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#ifndef __PI_PCD_PPI_H__
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#define __PI_PCD_PPI_H__
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extern EFI_GUID gEfiPeiPcdPpiGuid;
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#define EFI_PEI_PCD_PPI_GUID \
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{ 0x1f34d25, 0x4de2, 0x23ad, { 0x3f, 0xf3, 0x36, 0x35, 0x3f, 0xf3, 0x23, 0xf1 } }
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#define EFI_PCD_INVALID_TOKEN_NUMBER ((UINTN) 0)
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/**
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SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values. SetSku() is
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normally called only once by the system.
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For each item (token), the database can hold a single value that applies to all SKUs, or multiple
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values, where each value is associated with a specific SKU Id. Items with multiple, SKU-specific
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values are called SKU enabled.
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The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255. For tokens that are
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not SKU enabled, the system ignores any set SKU Id and works with the single value for that token.
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For SKU-enabled tokens, the system will use the SKU Id set by the last call to SetSku(). If no
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SKU Id is set or the currently set SKU Id isn't valid for the specified token, the system uses the
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default SKU Id. If the system attempts to use the default SKU Id and no value has been set for that
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Id, the results are unpredictable.
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@param[in] SkuId The SKU value to set.
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**/
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typedef
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VOID
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(EFIAPI *EFI_PEI_PCD_PPI_SET_SKU)(
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IN UINTN SkuId
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);
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/**
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Retrieves the current byte-sized value for a PCD token number. If the TokenNumber is invalid,
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the results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return 8-bit value for a given PCD token.
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**/
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typedef
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UINT8
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(EFIAPI *EFI_PEI_PCD_PPI_GET_8)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current word-sized value for a PCD token number. If the TokenNumber is invalid,
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the results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return 16-bit value for a given PCD token.
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**/
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typedef
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UINT16
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(EFIAPI *EFI_PEI_PCD_PPI_GET_16)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current 32-bit value for a PCD token number. If the TokenNumber is invalid, the
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results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return 32-bit value for a given PCD token.
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**/
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typedef
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UINT32
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(EFIAPI *EFI_PEI_PCD_PPI_GET_32)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current 64-bit value for a PCD token number. If the TokenNumber is invalid, the
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results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return 64-bit value for a given PCD token.
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**/
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typedef
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UINT64
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(EFIAPI *EFI_PEI_PCD_PPI_GET_64)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current pointer to the value for a PCD token number. There should not be any
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alignment assumptions about the pointer that is returned by this function call. If the TokenNumber
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is invalid, the results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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**/
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typedef
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VOID *
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(EFIAPI *EFI_PEI_PCD_PPI_GET_POINTER)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current Boolean-sized value for a PCD token number. If the TokenNumber is
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invalid, the results are unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return Boolean value for a given PCD token.
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**/
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typedef
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BOOLEAN
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(EFIAPI *EFI_PEI_PCD_PPI_GET_BOOLEAN)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Retrieves the current size of a particular PCD token. If the TokenNumber is invalid, the results are
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unpredictable.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@return the size of the value for a given PCD token.
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**/
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typedef
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UINTN
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(EFIAPI *EFI_PEI_PCD_PPI_GET_SIZE)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber
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);
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/**
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Sets an 8-bit value for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] Value The value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_8)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT8 Value
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);
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/**
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Sets an 16-bit value for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] Value The value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_16)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT16 Value
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);
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/**
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Sets an 32-bit value for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] Value The value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_32)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT32 Value
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);
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/**
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Sets an 64-bit value for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] Value The value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_64)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN UINT64 Value
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);
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/**
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Sets a value of the specified size for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] SizeOfValue The length of the value being set for the PCD token. If too large of a length is
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specified, upon return from this function the value of SizeOfValue will reflect the
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maximum size for the PCD token.
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@param[in] Buffer A pointer to the buffer containing the value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_POINTER)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN OUT UINTN *SizeOfValue,
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IN VOID *Buffer
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);
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/**
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Sets a Boolean value for a given PCD token.
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When the PCD service sets a value, it will check to ensure that the size of the value being set is
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compatible with the Token's existing definition. If it is not, an error will be returned.
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@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
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@param[in] TokenNumber The PCD token number.
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@param[in] Value The value to set for the PCD token.
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@retval EFI_SUCCESS The PCD service has set the value requested
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data being set was
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incompatible with a call to this function. Use GetSizeEx() to
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retrieve the size of the target data.
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@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_SET_BOOLEAN)(
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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IN BOOLEAN Value
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);
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typedef
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VOID
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(EFIAPI *EFI_PEI_PCD_PPI_CALLBACK)(
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IN EFI_GUID *Guid OPTIONAL,
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IN UINTN CallBackToken,
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IN OUT VOID *TokenData,
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IN UINTN TokenDatSize
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);
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/**
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Specifies a function to be called anytime the value of a designated token is changed.
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@param[in] Guid The 128-bit unique value that designates which namespace to monitor. If NULL, use
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the standard platform namespace.
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@param[in] CallBackToken The PCD token number to monitor.
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@param[in] CallBackFunction The function prototype that will be called when the value associated with the
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CallBackToken is set.
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@retval EFI_SUCCESS The PCD service has successfully established a call event for the
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CallBackToken requested.
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@retval EFI_NOT_FOUND The PCD service could not find the referenced token number.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_PEI_PCD_PPI_CALLBACK_ON_SET)(
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IN CONST EFI_GUID *Guid OPTIONAL,
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IN UINTN CallBackToken,
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IN EFI_PEI_PCD_PPI_CALLBACK CallBackFunction
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);
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/**
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Cancels a previously set callback function for a particular PCD token number.
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@param[in] Guid The 128-bit unique value that designates which namespace to monitor. If NULL, use
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the standard platform namespace.
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@param[in] CallBackToken The PCD token number to cancel monitoring.
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@param[in] CallBackFunction The function prototype that was originally passed to the CallBackOnSet function.
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@retval EFI_SUCCESS The PCD service has cancelled the call event associated with the
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CallBackToken.
|
||
|
|
@retval EFI_INVALID_PARAMETER The PCD service did not match the CallBackFunction to one
|
||
|
|
that is currently being monitored.
|
||
|
|
@retval EFI_NOT_FOUND The PCD service could not find data the requested token number.
|
||
|
|
**/
|
||
|
|
typedef
|
||
|
|
EFI_STATUS
|
||
|
|
(EFIAPI *EFI_PEI_PCD_PPI_CANCEL_CALLBACK)(
|
||
|
|
IN CONST EFI_GUID *Guid OPTIONAL,
|
||
|
|
IN UINTN CallBackToken,
|
||
|
|
IN EFI_PEI_PCD_PPI_CALLBACK CallBackFunction
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Retrieves the next valid PCD token for a given namespace.
|
||
|
|
|
||
|
|
This provides a means by which to get the next valid token number in a given namespace. This is
|
||
|
|
useful since the PCD infrastructure has a sparse list of token numbers in it, and one cannot a priori
|
||
|
|
know what token numbers are valid in the database.
|
||
|
|
|
||
|
|
@param[in] Guid The 128-bit unique value that designates which namespace to extract the value from.
|
||
|
|
@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_PEI_PCD_PPI_GET_NEXT_TOKEN)(
|
||
|
|
IN CONST EFI_GUID *Guid OPTIONAL,
|
||
|
|
IN UINTN *TokenNumber
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Retrieves the next valid PCD token namespace for a given namespace.
|
||
|
|
|
||
|
|
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_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE)(
|
||
|
|
IN OUT CONST EFI_GUID **Guid
|
||
|
|
);
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
EFI_PEI_PCD_PPI_SET_SKU SetSku;
|
||
|
|
EFI_PEI_PCD_PPI_GET_8 Get8;
|
||
|
|
EFI_PEI_PCD_PPI_GET_16 Get16;
|
||
|
|
EFI_PEI_PCD_PPI_GET_32 Get32;
|
||
|
|
EFI_PEI_PCD_PPI_GET_64 Get64;
|
||
|
|
EFI_PEI_PCD_PPI_GET_POINTER GetPtr;
|
||
|
|
EFI_PEI_PCD_PPI_GET_BOOLEAN GetBool;
|
||
|
|
EFI_PEI_PCD_PPI_GET_SIZE GetSize;
|
||
|
|
EFI_PEI_PCD_PPI_SET_8 Set8;
|
||
|
|
EFI_PEI_PCD_PPI_SET_16 Set16;
|
||
|
|
EFI_PEI_PCD_PPI_SET_32 Set32;
|
||
|
|
EFI_PEI_PCD_PPI_SET_64 Set64;
|
||
|
|
EFI_PEI_PCD_PPI_SET_POINTER SetPtr;
|
||
|
|
EFI_PEI_PCD_PPI_SET_BOOLEAN SetBool;
|
||
|
|
EFI_PEI_PCD_PPI_CALLBACK_ON_SET CallbackOnSet;
|
||
|
|
EFI_PEI_PCD_PPI_CANCEL_CALLBACK CancelCallback;
|
||
|
|
EFI_PEI_PCD_PPI_GET_NEXT_TOKEN GetNextToken;
|
||
|
|
EFI_PEI_PCD_PPI_GET_NEXT_TOKEN_SPACE GetNextTokenSpace;
|
||
|
|
} EFI_PEI_PCD_PPI;
|
||
|
|
|
||
|
|
#endif
|