mirror of https://github.com/acidanthera/audk.git
1118 lines
38 KiB
C++
1118 lines
38 KiB
C++
/** @file
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The internal header file declares the private functions used by PeiPcd driver.
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Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _PEI_PCD_SERVICE_H_
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#define _PEI_PCD_SERVICE_H_
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#include <PiPei.h>
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#include <Ppi/ReadOnlyVariable2.h>
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#include <Ppi/Pcd.h>
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#include <Ppi/PiPcd.h>
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#include <Ppi/PcdInfo.h>
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#include <Ppi/PiPcdInfo.h>
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#include <Guid/PcdDataBaseHobGuid.h>
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#include <Guid/PcdDataBaseSignatureGuid.h>
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#include <Library/DebugLib.h>
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#include <Library/PeimEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/HobLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PcdLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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//
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// Please make sure the PCD Serivce PEIM Version is consistent with
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// the version of the generated PEIM PCD Database by build tool.
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//
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#define PCD_SERVICE_PEIM_VERSION 5
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//
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// PCD_PEI_SERVICE_DRIVER_VERSION is defined in Autogen.h.
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//
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#if (PCD_SERVICE_PEIM_VERSION != PCD_PEI_SERVICE_DRIVER_VERSION)
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#error "Please make sure the version of PCD PEIM Service and the generated PCD PEI Database match."
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#endif
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/**
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Retrieve additional information associated with a PCD token in the default token space.
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This includes information such as the type of value the TokenNumber is associated with as well as possible
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human readable name that is associated with the token.
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@param[in] TokenNumber The PCD token number.
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@param[out] PcdInfo The returned information associated with the requested TokenNumber.
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The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.
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@retval EFI_SUCCESS The PCD information was returned successfully.
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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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EFI_STATUS
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EFIAPI
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PeiGetPcdInfoGetInfo (
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IN UINTN TokenNumber,
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OUT EFI_PCD_INFO *PcdInfo
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);
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/**
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Retrieve additional information associated with a PCD token.
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This includes information such as the type of value the TokenNumber is associated with as well as possible
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human readable name that is associated with the token.
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@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
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@param[in] TokenNumber The PCD token number.
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@param[out] PcdInfo The returned information associated with the requested TokenNumber.
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The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.
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@retval EFI_SUCCESS The PCD information was returned successfully.
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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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EFI_STATUS
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EFIAPI
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PeiGetPcdInfoGetInfoEx (
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IN CONST EFI_GUID *Guid,
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IN UINTN TokenNumber,
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OUT EFI_PCD_INFO *PcdInfo
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);
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/**
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Retrieve the currently set SKU Id.
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@return The currently set SKU Id. If the platform has not set at a SKU Id, then the
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default SKU Id value of 0 is returned. If the platform has set a SKU Id, then the currently set SKU
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Id is returned.
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**/
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UINTN
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EFIAPI
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PeiGetPcdInfoGetSku (
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VOID
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);
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//
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// PPI Interface Implementation Declaration.
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//
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/**
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Sets the SKU value for subsequent calls to set or get PCD token values.
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SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values.
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SetSku() is 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,
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or multiple values, where each value is associated with a specific SKU Id. Items with multiple,
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SKU-specific 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.
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For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the
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single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the
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last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token,
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the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been
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set for that Id, the results are unpredictable.
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@param[in] SkuId The SKU value that will be used when the PCD service will retrieve and
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set values associated with a PCD token.
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**/
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VOID
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EFIAPI
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PeiPcdSetSku (
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IN UINTN SkuId
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);
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/**
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Retrieves an 8-bit value for a given PCD token.
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Retrieves the current byte-sized value for a PCD token number.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The UINT8 value.
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**/
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UINT8
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EFIAPI
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PeiPcdGet8 (
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IN UINTN TokenNumber
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);
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/**
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Retrieves an 16-bit value for a given PCD token.
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Retrieves the current 16-bits value for a PCD token number.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The UINT16 value.
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**/
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UINT16
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EFIAPI
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PeiPcdGet16 (
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IN UINTN TokenNumber
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);
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/**
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Retrieves an 32-bit value for a given PCD token.
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Retrieves the current 32-bits value for a PCD token number.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The UINT32 value.
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**/
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UINT32
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EFIAPI
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PeiPcdGet32 (
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IN UINTN TokenNumber
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);
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/**
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Retrieves an 64-bit value for a given PCD token.
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Retrieves the current 64-bits value for a PCD token number.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The UINT64 value.
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**/
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UINT64
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EFIAPI
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PeiPcdGet64 (
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IN UINTN TokenNumber
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);
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/**
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Retrieves a pointer to a value for a given PCD token.
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Retrieves the current pointer to the buffer for a PCD token number.
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Do not make any assumptions about the alignment of the pointer that
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is returned by this function call. If the TokenNumber is invalid,
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the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The pointer to the buffer to be retrived.
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**/
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VOID *
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EFIAPI
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PeiPcdGetPtr (
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IN UINTN TokenNumber
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);
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/**
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Retrieves a Boolean value for a given PCD token.
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Retrieves the current boolean value for a PCD token number.
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Do not make any assumptions about the alignment of the pointer that
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is returned by this function call. If the TokenNumber is invalid,
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the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The Boolean value.
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**/
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BOOLEAN
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EFIAPI
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PeiPcdGetBool (
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IN UINTN TokenNumber
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);
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/**
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Retrieves the size of the value for a given PCD token.
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Retrieves the current size of a particular PCD token.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] TokenNumber The PCD token number.
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@return The size of the value for the PCD token.
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**/
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UINTN
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EFIAPI
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PeiPcdGetSize (
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IN UINTN TokenNumber
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);
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/**
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Retrieves an 8-bit value for a given PCD token.
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Retrieves the 8-bit value of a particular PCD token.
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If the TokenNumber is invalid or the token space
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specified by Guid does not exist, the results are
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unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size 8-bit value for the PCD token.
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**/
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UINT8
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EFIAPI
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PeiPcdGet8Ex (
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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 an 16-bit value for a given PCD token.
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Retrieves the 16-bit value of a particular PCD token.
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If the TokenNumber is invalid or the token space
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specified by Guid does not exist, the results are
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unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size 16-bit value for the PCD token.
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**/
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UINT16
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EFIAPI
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PeiPcdGet16Ex (
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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 an 32-bit value for a given PCD token.
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Retrieves the 32-bit value of a particular PCD token.
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If the TokenNumber is invalid or the token space
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specified by Guid does not exist, the results are
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unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size 32-bit value for the PCD token.
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**/
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UINT32
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EFIAPI
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PeiPcdGet32Ex (
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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 an 64-bit value for a given PCD token.
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Retrieves the 64-bit value of a particular PCD token.
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If the TokenNumber is invalid or the token space
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specified by Guid does not exist, the results are
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unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size 64-bit value for the PCD token.
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**/
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UINT64
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EFIAPI
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PeiPcdGet64Ex (
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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 a pointer to a value for a given PCD token.
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Retrieves the current pointer to the buffer for a PCD token number.
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Do not make any assumptions about the alignment of the pointer that
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is returned by this function call. If the TokenNumber is invalid,
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the results are unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The pointer to the buffer to be retrived.
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**/
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VOID *
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EFIAPI
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PeiPcdGetPtrEx (
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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 an Boolean value for a given PCD token.
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Retrieves the Boolean value of a particular PCD token.
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If the TokenNumber is invalid or the token space
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specified by Guid does not exist, the results are
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unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size Boolean value for the PCD token.
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**/
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BOOLEAN
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EFIAPI
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PeiPcdGetBoolEx (
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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 size of the value for a given PCD token.
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Retrieves the current size of a particular PCD token.
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If the TokenNumber is invalid, the results are unpredictable.
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@param[in] Guid The token space for the token number.
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@param[in] TokenNumber The PCD token number.
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@return The size of the value for the PCD token.
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**/
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UINTN
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EFIAPI
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PeiPcdGetSizeEx (
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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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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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 Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSet8 (
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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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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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 Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSet16 (
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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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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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 Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSet32 (
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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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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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 Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSet64 (
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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 a 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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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@param[in] TokenNumber The PCD token number.
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@param[in, out] SizeOfBuffer A pointer to the length of the value being set for the PCD token.
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On input, if the SizeOfValue is greater than the maximum size supported
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for this TokenNumber then the output value of SizeOfValue will reflect
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the maximum size supported for this TokenNumber.
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@param[in] Buffer The buffer to set for the PCD token.
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@retval EFI_SUCCESS Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSetPtr (
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IN UINTN TokenNumber,
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IN OUT UINTN *SizeOfBuffer,
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IN VOID *Buffer
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);
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|
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/**
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Sets an 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
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size of the value being set is compatible with the Token's existing definition.
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If it is not, an error will be returned.
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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 Procedure returned successfully.
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@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
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being set was incompatible with a call to this function.
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Use GetSize() to 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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EFI_STATUS
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EFIAPI
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PeiPcdSetBool (
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IN UINTN TokenNumber,
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IN BOOLEAN Value
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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 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSet8Ex (
|
|
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 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSet16Ex (
|
|
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 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSet32Ex (
|
|
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 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSet64Ex (
|
|
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] SizeOfBuffer 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSetPtrEx (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN OUT UINTN *SizeOfBuffer,
|
|
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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdSetBoolEx (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
IN BOOLEAN Value
|
|
);
|
|
|
|
/**
|
|
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] TokenNumber The PCD token number.
|
|
@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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiRegisterCallBackOnSet (
|
|
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] 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] 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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PcdUnRegisterCallBackOnSet (
|
|
IN CONST EFI_GUID *Guid, OPTIONAL
|
|
IN UINTN TokenNumber,
|
|
IN PCD_PPI_CALLBACK CallBackFunction
|
|
);
|
|
|
|
/**
|
|
Retrieves 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.
|
|
|
|
If TokenNumber is 0 and Guid is not NULL, then the first token from the token space specified by Guid is returned.
|
|
If TokenNumber is not 0 and Guid is not NULL, then the next token in the token space specified by Guid is returned.
|
|
If TokenNumber is 0 and Guid is NULL, then the first token in the default token space is returned.
|
|
If TokenNumber is not 0 and Guid is NULL, then the next token in the default token space is returned.
|
|
The token numbers in the default token space may not be related to token numbers in token spaces that are named by Guid.
|
|
If the next token number can be retrieved, then it is returned in TokenNumber, and EFI_SUCCESS is returned.
|
|
If TokenNumber represents the last token number in the token space specified by Guid, then EFI_NOT_FOUND is returned.
|
|
If TokenNumber is not present in the token space specified by Guid, then EFI_NOT_FOUND is returned.
|
|
|
|
|
|
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
|
|
This is an optional parameter that may be NULL. If this parameter is NULL, then a request
|
|
is being made to retrieve tokens from the default token space.
|
|
@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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdGetNextToken (
|
|
IN CONST EFI_GUID *Guid, OPTIONAL
|
|
IN OUT UINTN *TokenNumber
|
|
);
|
|
|
|
/**
|
|
Retrieves the next valid PCD token namespace for a given namespace.
|
|
|
|
@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. 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.
|
|
|
|
@retval EFI_SUCCESS The PCD service retrieved the next valid token space Guid.
|
|
Or the input token space Guid is already the last valid token space Guid
|
|
in the PCD database. In the later case, *Guid is updated with the value of NULL.
|
|
@retval EFI_NOT_FOUND If the input token namespace does not exist on the platform.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PeiPcdGetNextTokenSpace (
|
|
IN OUT CONST EFI_GUID **Guid
|
|
);
|
|
|
|
/**
|
|
Retrieve additional information associated with a PCD token.
|
|
|
|
This includes information such as the type of value the TokenNumber is associated with as well as possible
|
|
human readable name that is associated with the token.
|
|
|
|
@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[out] PcdInfo The returned information associated with the requested TokenNumber.
|
|
The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.
|
|
|
|
@retval EFI_SUCCESS The PCD information was returned successfully
|
|
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
|
|
**/
|
|
EFI_STATUS
|
|
PeiGetPcdInfo (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN UINTN TokenNumber,
|
|
OUT EFI_PCD_INFO *PcdInfo
|
|
);
|
|
|
|
/* Internal Function definitions */
|
|
/**
|
|
Get PCD database from GUID HOB in PEI phase.
|
|
|
|
@return Pointer to PCD database.
|
|
|
|
**/
|
|
PEI_PCD_DATABASE *
|
|
GetPcdDatabase (
|
|
VOID
|
|
);
|
|
|
|
/**
|
|
Wrapper function for setting non-pointer type value for a PCD entry.
|
|
|
|
@param TokenNumber Pcd token number autogenerated by build tools.
|
|
@param Data Value want to be set for PCD entry
|
|
@param Size Size of value.
|
|
|
|
@return status of SetWorker.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
SetValueWorker (
|
|
IN UINTN TokenNumber,
|
|
IN VOID *Data,
|
|
IN UINTN Size
|
|
);
|
|
|
|
/**
|
|
Set value for an PCD entry
|
|
|
|
@param TokenNumber Pcd token number autogenerated by build tools.
|
|
@param Data Value want to be set for PCD entry
|
|
@param Size Size of value.
|
|
@param PtrType If TRUE, the type of PCD entry's value is Pointer.
|
|
If False, the type of PCD entry's value is not Pointer.
|
|
|
|
@retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.
|
|
@retval EFI_INVALID_PARAMETER If Size can not be set to size table.
|
|
@retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.
|
|
@retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in
|
|
range of UINT8, UINT16, UINT32, UINT64
|
|
@retval EFI_NOT_FOUND Can not find the PCD type according to token number.
|
|
**/
|
|
EFI_STATUS
|
|
SetWorker (
|
|
IN UINTN TokenNumber,
|
|
IN VOID *Data,
|
|
IN OUT UINTN *Size,
|
|
IN BOOLEAN PtrType
|
|
);
|
|
|
|
/**
|
|
Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.
|
|
|
|
@param ExTokenNumber Token number for dynamic-ex PCD.
|
|
@param Guid Token space guid for dynamic-ex PCD.
|
|
@param Data Value want to be set.
|
|
@param SetSize The size of value.
|
|
|
|
@return status of ExSetWorker().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
ExSetValueWorker (
|
|
IN UINTN ExTokenNumber,
|
|
IN CONST EFI_GUID *Guid,
|
|
IN VOID *Data,
|
|
IN UINTN Size
|
|
);
|
|
|
|
/**
|
|
Set value for a dynamic PCD entry.
|
|
|
|
This routine find the local token number according to dynamic-ex PCD's token
|
|
space guid and token number firstly, and invoke callback function if this PCD
|
|
entry registered callback function. Finally, invoken general SetWorker to set
|
|
PCD value.
|
|
|
|
@param ExTokenNumber Dynamic-ex PCD token number.
|
|
@param Guid Token space guid for dynamic-ex PCD.
|
|
@param Data PCD value want to be set
|
|
@param SetSize Size of value.
|
|
@param PtrType If TRUE, this PCD entry is pointer type.
|
|
If FALSE, this PCD entry is not pointer type.
|
|
|
|
@return status of SetWorker().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
ExSetWorker (
|
|
IN UINTN ExTokenNumber,
|
|
IN CONST EFI_GUID *Guid,
|
|
IN VOID *Data,
|
|
IN OUT UINTN *Size,
|
|
IN BOOLEAN PtrType
|
|
);
|
|
|
|
/**
|
|
Get the PCD entry pointer in PCD database.
|
|
|
|
This routine will visit PCD database to find the PCD entry according to given
|
|
token number. The given token number is autogened by build tools and it will be
|
|
translated to local token number. Local token number contains PCD's type and
|
|
offset of PCD entry in PCD database.
|
|
|
|
@param TokenNumber Token's number, it is autogened by build tools
|
|
@param GetSize The size of token's value
|
|
|
|
@return PCD entry pointer in PCD database
|
|
|
|
**/
|
|
VOID *
|
|
GetWorker (
|
|
IN UINTN TokenNumber,
|
|
IN UINTN GetSize
|
|
);
|
|
|
|
/**
|
|
Wrapper function for get PCD value for dynamic-ex PCD.
|
|
|
|
@param Guid Token space guid for dynamic-ex PCD.
|
|
@param ExTokenNumber Token number for dyanmic-ex PCD.
|
|
@param GetSize The size of dynamic-ex PCD value.
|
|
|
|
@return PCD entry in PCD database.
|
|
|
|
**/
|
|
VOID *
|
|
ExGetWorker (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN UINTN ExTokenNumber,
|
|
IN UINTN GetSize
|
|
);
|
|
|
|
typedef struct {
|
|
UINTN TokenNumber;
|
|
UINTN Size;
|
|
UINT32 LocalTokenNumberAlias;
|
|
} EX_PCD_ENTRY_ATTRIBUTE;
|
|
|
|
/**
|
|
Get Token Number according to dynamic-ex PCD's {token space guid:token number}
|
|
|
|
A dynamic-ex type PCD, developer must provide pair of token space guid: token number
|
|
in DEC file. PCD database maintain a mapping table that translate pair of {token
|
|
space guid: token number} to Token Number.
|
|
|
|
@param Guid Token space guid for dynamic-ex PCD entry.
|
|
@param ExTokenNumber Token number for dynamic-ex PCD.
|
|
|
|
@return Token Number for dynamic-ex PCD.
|
|
|
|
**/
|
|
UINTN
|
|
GetExPcdTokenNumber (
|
|
IN CONST EFI_GUID *Guid,
|
|
IN UINTN ExTokenNumber
|
|
);
|
|
|
|
/**
|
|
Find the local token number according to system SKU ID.
|
|
|
|
@param LocalTokenNumber PCD token number
|
|
@param Size The size of PCD entry.
|
|
|
|
@return Token number according to system SKU ID.
|
|
|
|
**/
|
|
UINT32
|
|
GetSkuEnabledTokenNumber (
|
|
UINT32 LocalTokenNumber,
|
|
UINTN Size
|
|
);
|
|
|
|
/**
|
|
The function registers the CallBackOnSet fucntion
|
|
according to TokenNumber and EFI_GUID space.
|
|
|
|
@param TokenNumber The token number.
|
|
@param Guid The GUID space.
|
|
@param CallBackFunction The Callback function to be registered.
|
|
@param Register To register or unregister the callback function.
|
|
|
|
@retval EFI_SUCCESS If the Callback function is registered.
|
|
@retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.
|
|
@retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free
|
|
slot left in the CallbackFnTable.
|
|
**/
|
|
EFI_STATUS
|
|
PeiRegisterCallBackWorker (
|
|
IN UINTN TokenNumber,
|
|
IN CONST EFI_GUID *Guid, OPTIONAL
|
|
IN PCD_PPI_CALLBACK CallBackFunction,
|
|
IN BOOLEAN Register
|
|
);
|
|
|
|
/**
|
|
The function builds the PCD database.
|
|
|
|
@param FileHandle Handle of the file the external PCD database binary located.
|
|
|
|
@return Pointer to PCD database.
|
|
|
|
**/
|
|
PEI_PCD_DATABASE *
|
|
BuildPcdDatabase (
|
|
IN EFI_PEI_FILE_HANDLE FileHandle
|
|
);
|
|
|
|
/**
|
|
Get SKU ID tabble from PCD database.
|
|
|
|
@param LocalTokenNumberTableIdx Index of local token number in token number table.
|
|
@param Database PCD Database in PEI phase
|
|
|
|
@return Pointer to SKU ID array table
|
|
|
|
**/
|
|
SKU_ID *
|
|
GetSkuIdArray (
|
|
IN UINTN LocalTokenNumberTableIdx,
|
|
IN PEI_PCD_DATABASE *Database
|
|
);
|
|
|
|
/**
|
|
Get index of PCD entry in size table.
|
|
|
|
@param LocalTokenNumberTableIdx Index of this PCD in local token number table.
|
|
@param Database Pointer to PCD database.
|
|
|
|
@return index of PCD entry in size table.
|
|
|
|
**/
|
|
UINTN
|
|
GetSizeTableIndex (
|
|
IN UINTN LocalTokenNumberTableIdx,
|
|
IN PEI_PCD_DATABASE *Database
|
|
);
|
|
|
|
/**
|
|
Get PCD value's size for POINTER type PCD.
|
|
|
|
The POINTER type PCD's value will be stored into a buffer in specificed size.
|
|
The max size of this PCD's value is described in PCD's definition in DEC file.
|
|
|
|
@param LocalTokenNumberTableIdx Index of PCD token number in PCD token table
|
|
@param MaxSize Maxmium size of PCD's value
|
|
@param Database Pcd database in PEI phase.
|
|
|
|
@return PCD value's size for POINTER type PCD.
|
|
|
|
**/
|
|
UINTN
|
|
GetPtrTypeSize (
|
|
IN UINTN LocalTokenNumberTableIdx,
|
|
OUT UINTN *MaxSize,
|
|
IN PEI_PCD_DATABASE *Database
|
|
);
|
|
|
|
/**
|
|
Set PCD value's size for POINTER type PCD.
|
|
|
|
The POINTER type PCD's value will be stored into a buffer in specificed size.
|
|
The max size of this PCD's value is described in PCD's definition in DEC file.
|
|
|
|
@param LocalTokenNumberTableIdx Index of PCD token number in PCD token table
|
|
@param CurrentSize Maxmium size of PCD's value
|
|
@param Database Pcd database in PEI phase.
|
|
|
|
@retval TRUE Success to set PCD's value size, which is not exceed maxmium size
|
|
@retval FALSE Fail to set PCD's value size, which maybe exceed maxmium size
|
|
|
|
**/
|
|
BOOLEAN
|
|
SetPtrTypeSize (
|
|
IN UINTN LocalTokenNumberTableIdx,
|
|
IN OUT UINTN *CurrentSize,
|
|
IN PEI_PCD_DATABASE *Database
|
|
);
|
|
|
|
#endif
|
|
|