audk/MdeModulePkg/Universal/PCD/Dxe/Service.h

1365 lines
48 KiB
C

/** @file
Private functions used by PCD DXE driver.
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _PCD_DXE_SERVICE_H_
#define _PCD_DXE_SERVICE_H_
#include <PiDxe.h>
#include <Guid/PcdDataBaseHobGuid.h>
#include <Protocol/Pcd.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
//
// Protocol Interface function declaration.
//
/**
Sets the SKU value for subsequent calls to set or get PCD token values.
SetSku() sets the SKU Id to be used for subsequent calls to set or get PCD values.
SetSku() is normally called only once by the system.
For each item (token), the database can hold a single value that applies to all SKUs,
or multiple values, where each value is associated with a specific SKU Id. Items with multiple,
SKU-specific values are called SKU enabled.
The SKU Id of zero is reserved as a default. The valid SkuId range is 1 to 255.
For tokens that are not SKU enabled, the system ignores any set SKU Id and works with the
single value for that token. For SKU-enabled tokens, the system will use the SKU Id set by the
last call to SetSku(). If no SKU Id is set or the currently set SKU Id isn't valid for the specified token,
the system uses the default SKU Id. If the system attempts to use the default SKU Id and no value has been
set for that Id, the results are unpredictable.
@param[in] SkuId The SKU value that will be used when the PCD service will retrieve and
set values associated with a PCD token.
**/
VOID
EFIAPI
DxePcdSetSku (
IN UINTN SkuId
);
/**
Retrieves an 8-bit value for a given PCD token.
Retrieves the current byte-sized value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT8 value.
**/
UINT8
EFIAPI
DxePcdGet8 (
IN UINTN TokenNumber
);
/**
Retrieves an 16-bit value for a given PCD token.
Retrieves the current 16-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT16 value.
**/
UINT16
EFIAPI
DxePcdGet16 (
IN UINTN TokenNumber
);
/**
Retrieves an 32-bit value for a given PCD token.
Retrieves the current 32-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT32 value.
**/
UINT32
EFIAPI
DxePcdGet32 (
IN UINTN TokenNumber
);
/**
Retrieves an 64-bit value for a given PCD token.
Retrieves the current 64-bits value for a PCD token number.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The UINT64 value.
**/
UINT64
EFIAPI
DxePcdGet64 (
IN UINTN TokenNumber
);
/**
Retrieves a pointer to a value for a given PCD token.
Retrieves the current pointer to the buffer for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The pointer to the buffer to be retrieved.
**/
VOID *
EFIAPI
DxePcdGetPtr (
IN UINTN TokenNumber
);
/**
Retrieves a Boolean value for a given PCD token.
Retrieves the current boolean value for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The Boolean value.
**/
BOOLEAN
EFIAPI
DxePcdGetBool (
IN UINTN TokenNumber
);
/**
Retrieves the size of the value for a given PCD token.
Retrieves the current size of a particular PCD token.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] TokenNumber The PCD token number.
@return The size of the value for the PCD token.
**/
UINTN
EFIAPI
DxePcdGetSize (
IN UINTN TokenNumber
);
/**
Retrieves an 8-bit value for a given PCD token.
Retrieves the 8-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 8-bit value for the PCD token.
**/
UINT8
EFIAPI
DxePcdGet8Ex (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves an 16-bit value for a given PCD token.
Retrieves the 16-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 16-bit value for the PCD token.
**/
UINT16
EFIAPI
DxePcdGet16Ex (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves an 32-bit value for a given PCD token.
Retrieves the 32-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 32-bit value for the PCD token.
**/
UINT32
EFIAPI
DxePcdGet32Ex (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves an 64-bit value for a given PCD token.
Retrieves the 64-bit value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size 64-bit value for the PCD token.
**/
UINT64
EFIAPI
DxePcdGet64Ex (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves a pointer to a value for a given PCD token.
Retrieves the current pointer to the buffer for a PCD token number.
Do not make any assumptions about the alignment of the pointer that
is returned by this function call. If the TokenNumber is invalid,
the results are unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The pointer to the buffer to be retrieved.
**/
VOID *
EFIAPI
DxePcdGetPtrEx (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves an Boolean value for a given PCD token.
Retrieves the Boolean value of a particular PCD token.
If the TokenNumber is invalid or the token space
specified by Guid does not exist, the results are
unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size Boolean value for the PCD token.
**/
BOOLEAN
EFIAPI
DxePcdGetBoolEx (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Retrieves the size of the value for a given PCD token.
Retrieves the current size of a particular PCD token.
If the TokenNumber is invalid, the results are unpredictable.
@param[in] Guid The token space for the token number.
@param[in] TokenNumber The PCD token number.
@return The size of the value for the PCD token.
**/
UINTN
EFIAPI
DxePcdGetSizeEx (
IN CONST EFI_GUID *Guid,
IN UINTN TokenNumber
);
/**
Sets an 8-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
EFI_STATUS
EFIAPI
DxePcdSet8 (
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] 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
DxePcdSet16 (
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] 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
DxePcdSet32 (
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] 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
DxePcdSet64 (
IN UINTN TokenNumber,
IN UINT64 Value
);
/**
Sets a value of a specified size for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] TokenNumber The PCD token number.
@param[in, out] 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
DxePcdSetPtr (
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] 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
DxePcdSetBool (
IN UINTN TokenNumber,
IN BOOLEAN Value
);
/**
Sets an 8-bit value for a given PCD token.
When the PCD service sets a value, it will check to ensure that the
size of the value being set is compatible with the Token's existing definition.
If it is not, an error will be returned.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in] TokenNumber The PCD token number.
@param[in] Value The value to set for the PCD token.
@retval EFI_SUCCESS Procedure returned successfully.
@retval EFI_INVALID_PARAMETER The PCD service determined that the size of the data
being set was incompatible with a call to this function.
Use GetSize() to retrieve the size of the target data.
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.
**/
EFI_STATUS
EFIAPI
DxePcdSet8Ex (
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
DxePcdSet16Ex (
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
DxePcdSet32Ex (
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
DxePcdSet64Ex (
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
DxePcdSetPtrEx (
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
DxePcdSetBoolEx (
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
DxeRegisterCallBackOnSet (
IN CONST EFI_GUID *Guid, OPTIONAL
IN UINTN TokenNumber,
IN PCD_PROTOCOL_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
DxeUnRegisterCallBackOnSet (
IN CONST EFI_GUID *Guid, OPTIONAL
IN UINTN TokenNumber,
IN PCD_PROTOCOL_CALLBACK CallBackFunction
);
/**
Retrieves the next valid PCD token for a given namespace.
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.
@param[in, out] TokenNumber A pointer to the PCD token number to use to find the subsequent token number.
If the input token namespace or token number does not exist on the platform,
an error is returned and the value of *TokenNumber is undefined. To retrieve the "first" token,
have the pointer reference a TokenNumber value of 0. If the input token number is 0 and
there is no valid token number for this token namespace, *TokenNumber will be assigned to
0 and the function return EFI_SUCCESS. If the token number is the last valid token number,
*TokenNumber will be assigned to 0 and the function return EFI_SUCCESS.
@retval EFI_SUCCESS The PCD service 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
DxePcdGetNextToken (
IN CONST EFI_GUID *Guid, OPTIONAL
IN OUT UINTN *TokenNumber
);
/**
Get next token space in PCD database according to given token space guid.
This routine is enable only when feature flag PCD PcdDxePcdDatabaseTraverseEnabled
is TRUE.
@param Guid Given token space guid. If NULL, then Guid will be set to
the first PCD token space in PCD database, If not NULL, then
Guid will be set to next PCD token space.
@retval EFI_UNSUPPORTED If feature flag PCD PcdDxePcdDatabaseTraverseEnabled is FALSE.
@retval EFI_NOT_FOUND If PCD database has no token space table or can not find given
token space in PCD database.
@retval EFI_SUCCESS Success to get next token space guid.
**/
EFI_STATUS
EFIAPI
DxePcdGetNextTokenSpace (
IN OUT CONST EFI_GUID **Guid
);
typedef struct {
LIST_ENTRY Node;
PCD_PROTOCOL_CALLBACK CallbackFn;
} CALLBACK_FN_ENTRY;
#define CR_FNENTRY_FROM_LISTNODE(Record, Type, Field) BASE_CR(Record, Type, Field)
//
// Internal Functions
//
/**
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_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 SetSize
);
/**
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 dynamic-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
);
/**
Find the local token number according to system SKU ID.
@param LocalTokenNumber PCD token number
@param Size The size of PCD entry.
@param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase.
If False, the PCD entry is initialized in DXE phase.
@return Token number according to system SKU ID.
**/
UINT32
GetSkuEnabledTokenNumber (
UINT32 LocalTokenNumber,
UINTN Size,
BOOLEAN IsPeiDb
);
/**
Get Variable which contains HII type PCD entry.
@param VariableGuid Variable's guid
@param VariableName Variable's unicode name string
@param VariableData Variable's data pointer,
@param VariableSize Variable's size.
@return the status of gRT->GetVariable
**/
EFI_STATUS
GetHiiVariable (
IN EFI_GUID *VariableGuid,
IN UINT16 *VariableName,
OUT UINT8 **VariableData,
OUT UINTN *VariableSize
);
/**
Set value for HII-type PCD.
A HII-type PCD's value is stored in a variable. Setting/Getting the value of
HII-type PCD is to visit this variable.
@param VariableGuid Guid of variable which stored value of a HII-type PCD.
@param VariableName Unicode name of variable which stored value of a HII-type PCD.
@param Data Value want to be set.
@param DataSize Size of value
@param Offset Value offset of HII-type PCD in variable.
@return status of GetVariable()/SetVariable().
**/
EFI_STATUS
SetHiiVariable (
IN EFI_GUID *VariableGuid,
IN UINT16 *VariableName,
IN CONST VOID *Data,
IN UINTN DataSize,
IN UINTN Offset
);
/**
Register the callback function for a PCD entry.
This routine will register a callback function to a PCD entry by given token number
and token space guid.
@param TokenNumber PCD token's number, it is autogened by build tools.
@param Guid PCD token space's guid,
if not NULL, this PCD is dynamicEx type PCD.
@param CallBackFunction Callback function pointer
@return EFI_SUCCESS Always success for registering callback function.
**/
EFI_STATUS
DxeRegisterCallBackWorker (
IN UINTN TokenNumber,
IN CONST EFI_GUID *Guid, OPTIONAL
IN PCD_PROTOCOL_CALLBACK CallBackFunction
);
/**
UnRegister the callback function for a PCD entry.
This routine will unregister a callback function to a PCD entry by given token number
and token space guid.
@param TokenNumber PCD token's number, it is autogened by build tools.
@param Guid PCD token space's guid.
if not NULL, this PCD is dynamicEx type PCD.
@param CallBackFunction Callback function pointer
@retval EFI_SUCCESS Callback function is success to be unregister.
@retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.
**/
EFI_STATUS
DxeUnRegisterCallBackWorker (
IN UINTN TokenNumber,
IN CONST EFI_GUID *Guid, OPTIONAL
IN PCD_PROTOCOL_CALLBACK CallBackFunction
);
/**
Initialize the PCD database in DXE phase.
PCD database in DXE phase also contains PCD database in PEI phase which is copied
from GUID Hob.
**/
VOID
BuildPcdDxeDataBase (
VOID
);
/**
Get local 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 local token number.
@param Guid Token space guid for dynamic-ex PCD entry.
@param ExTokenNumber Dynamic-ex PCD token number.
@return local token number for dynamic-ex PCD.
**/
UINTN
GetExPcdTokenNumber (
IN CONST EFI_GUID *Guid,
IN UINT32 ExTokenNumber
);
/**
Get next token number in given token space.
This routine is used for dynamicEx type PCD. It will firstly scan token space
table to get token space according to given token space guid. Then scan given
token number in found token space, if found, then return next token number in
this token space.
@param Guid Token space guid. Next token number will be scaned in
this token space.
@param TokenNumber Token number.
If PCD_INVALID_TOKEN_NUMBER, return first token number in
token space table.
If not PCD_INVALID_TOKEN_NUMBER, return next token number
in token space table.
@param GuidTable Token space guid table. It will be used for scan token space
by given token space guid.
@param SizeOfGuidTable The size of guid table.
@param ExMapTable DynamicEx token number mapping table.
@param SizeOfExMapTable The size of dynamicEx token number mapping table.
@retval EFI_NOT_FOUND Can not given token space or token number.
@retval EFI_SUCCESS Success to get next token number.
**/
EFI_STATUS
ExGetNextTokeNumber (
IN CONST EFI_GUID *Guid,
IN OUT UINTN *TokenNumber,
IN EFI_GUID *GuidTable,
IN UINTN SizeOfGuidTable,
IN DYNAMICEX_MAPPING *ExMapTable,
IN UINTN SizeOfExMapTable
);
/**
Get size of POINTER type PCD value.
@param LocalTokenNumberTableIdx Index of local token number in local token number table.
@param MaxSize Maximum size of POINTER type PCD value.
@return size of POINTER type PCD value.
**/
UINTN
GetPtrTypeSize (
IN UINTN LocalTokenNumberTableIdx,
OUT UINTN *MaxSize
);
/**
Set size of POINTER type PCD value. The size should not exceed the maximum size
of this PCD value.
@param LocalTokenNumberTableIdx Index of local token number in local token number table.
@param CurrentSize Size of POINTER type PCD value.
@retval TRUE Success to set size of PCD value.
@retval FALSE Fail to set size of PCD value.
**/
BOOLEAN
SetPtrTypeSize (
IN UINTN LocalTokenNumberTableIdx,
IN OUT UINTN *CurrentSize
);
extern PCD_DATABASE * mPcdDatabase;
extern DXE_PCD_DATABASE_INIT gDXEPcdDbInit;
extern EFI_LOCK mPcdDatabaseLock;
#endif
////////////////////////////////////////////////////////////////////////////////////////////////////
/// ///
/// Following code is an example for auto-generated PCD database to hold all dynamic/dynamicex ///
/// PCD's value for one given platform. And following sample comes from autogen.h/autogen.c of ///
/// PCD Dxe driver for NT32 platform. ///
/// ///
/// The PCD database is stored into a big structure - PCD_DATABASE which is consisted of ///
/// PEI PCD database structure and DXE PCD database structure. ///
/// ///
////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// // Common definitions
// //
// typedef UINT8 SKU_ID;
//
// //
// // A PCD offset value is consisted as follows:
// // 32 ------------- 28 ---------- 24 -------- 0
// // | PCD type mask | Datum Type | Offset |
// // -------------------------------------------
//
// #define PCD_TYPE_SHIFT 28 // 28 ~ 32 bit hold PCD type information
//
// #define PCD_TYPE_DATA (0x0 << PCD_TYPE_SHIFT)
// #define PCD_TYPE_HII (0x8 << PCD_TYPE_SHIFT)
// #define PCD_TYPE_VPD (0x4 << PCD_TYPE_SHIFT)
// #define PCD_TYPE_SKU_ENABLED (0x2 << PCD_TYPE_SHIFT)
// #define PCD_TYPE_STRING (0x1 << PCD_TYPE_SHIFT)
//
// #define PCD_TYPE_ALL_SET (PCD_TYPE_DATA | PCD_TYPE_HII | PCD_TYPE_VPD | PCD_TYPE_SKU_ENABLED | PCD_TYPE_STRING)
//
// #define PCD_DATUM_TYPE_SHIFT 24 // 24 ~ 28 bit hold datum type information
//
// #define PCD_DATUM_TYPE_POINTER (0x0 << PCD_DATUM_TYPE_SHIFT)
// #define PCD_DATUM_TYPE_UINT8 (0x1 << PCD_DATUM_TYPE_SHIFT)
// #define PCD_DATUM_TYPE_UINT16 (0x2 << PCD_DATUM_TYPE_SHIFT)
// #define PCD_DATUM_TYPE_UINT32 (0x4 << PCD_DATUM_TYPE_SHIFT)
// #define PCD_DATUM_TYPE_UINT64 (0x8 << PCD_DATUM_TYPE_SHIFT)
//
// #define PCD_DATUM_TYPE_ALL_SET (PCD_DATUM_TYPE_POINTER |
// PCD_DATUM_TYPE_UINT8 |
// PCD_DATUM_TYPE_UINT16 |
// PCD_DATUM_TYPE_UINT32 |
// PCD_DATUM_TYPE_UINT64)
//
// #define PCD_DATABASE_OFFSET_MASK (~(PCD_TYPE_ALL_SET | PCD_DATUM_TYPE_ALL_SET))
//
// typedef struct {
// UINT32 ExTokenNumber;
// UINT16 LocalTokenNumber; // PCD Number of this particular platform build
// UINT16 ExGuidIndex; // Index of GuidTable
// } DYNAMICEX_MAPPING;
//
// typedef struct {
// UINT32 SkuDataStartOffset; //We have to use offsetof MACRO as we don't know padding done by compiler
// UINT32 SkuIdTableOffset; //Offset from the PCD_DB
// } SKU_HEAD;
//
// typedef struct {
// UINT16 GuidTableIndex; // Offset in Guid Table in units of GUID.
// UINT16 StringIndex; // Offset in String Table in units of UINT16.
// UINT16 Offset; // Offset in Variable
// UINT16 DefaultValueOffset; // Offset of the Default Value
// } VARIABLE_HEAD;
//
// typedef struct {
// UINT32 Offset;
// } VPD_HEAD;
//
// typedef UINT16 STRING_HEAD;
//
// typedef UINT16 SIZE_INFO;
//
// #define offsetof(s,m) (UINT32) (UINTN) &(((s *)0)->m)
//
//
// #define PEI_GUID_TABLE_SIZE 1
// #define PEI_STRING_TABLE_SIZE 1
// #define PEI_SKUID_TABLE_SIZE 1
// #define PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE 3
// #define PEI_LOCAL_TOKEN_NUMBER 3
// #define PEI_EXMAPPING_TABLE_SIZE 1
// #define PEI_EX_TOKEN_NUMBER 0
// #define PEI_SIZE_TABLE_SIZE 2
// #define PEI_GUID_TABLE_EMPTY TRUE
// #define PEI_STRING_TABLE_EMPTY TRUE
// #define PEI_SKUID_TABLE_EMPTY TRUE
// #define PEI_DATABASE_EMPTY FALSE
// #define PEI_EXMAP_TABLE_EMPTY TRUE
//
// //
// // PEI database structure for dynamic/dynamicex PCD which has default value.
// //
// typedef struct {
//
//
//
//
//
// DYNAMICEX_MAPPING ExMapTable[PEI_EXMAPPING_TABLE_SIZE]; // table for mapping dynamicex token number to local token number
// UINT32 LocalTokenNumberTable[PEI_LOCAL_TOKEN_NUMBER_TABLE_SIZE]; // table for local token number
// GUID GuidTable[PEI_GUID_TABLE_SIZE]; // table for token guid
//
//
// UINT16 StringTable[1]; /* _ */ // table for unicode string type PCD's value
//
// SIZE_INFO SizeTable[PEI_SIZE_TABLE_SIZE]; // table for PCD size information
//
//
//
//
//
//
// UINT8 SkuIdTable[PEI_SKUID_TABLE_SIZE]; // table for SKU IDs
// SKU_ID SystemSkuId; // system SKU ID
// } PEI_PCD_DATABASE_INIT;
//
// //
// // PEI database structure for dynamic/dynamicex PCD which has no default value.
// //
// typedef struct {
//
//
// UINT32 PcdFlashNvStorageVariableBase_a1aff049_fdeb_442a_b320_13ab4cb72bbc[1]; // PCD entry for PcdFlashNvStorageVariableBase
// UINT32 PcdFlashNvStorageFtwSpareBase_a1aff049_fdeb_442a_b320_13ab4cb72bbc[1]; // PCD entry for PcdFlashNvStorageFtwSpareBase
// UINT32 PcdFlashNvStorageFtwWorkingBase_a1aff049_fdeb_442a_b320_13ab4cb72bbc[1]; // PCD entry for PcdFlashNvStorageFtwWorkingBase
//
//
//
//
// } PEI_PCD_DATABASE_UNINIT;
//
// #define PCD_PEI_SERVICE_DRIVER_VERSION 2
//
// typedef struct {
// PEI_PCD_DATABASE_INIT Init;
// PEI_PCD_DATABASE_UNINIT Uninit;
// } PEI_PCD_DATABASE;
//
// #define PEI_NEX_TOKEN_NUMBER (PEI_LOCAL_TOKEN_NUMBER - PEI_EX_TOKEN_NUMBER)
//
// #define DXE_GUID_TABLE_SIZE 1
// #define DXE_STRING_TABLE_SIZE 212
// #define DXE_SKUID_TABLE_SIZE 1
// #define DXE_LOCAL_TOKEN_NUMBER_TABLE_SIZE 9
// #define DXE_LOCAL_TOKEN_NUMBER 9
// #define DXE_EXMAPPING_TABLE_SIZE 1
// #define DXE_EX_TOKEN_NUMBER 0
// #define DXE_SIZE_TABLE_SIZE 16
// #define DXE_GUID_TABLE_EMPTY TRUE
// #define DXE_STRING_TABLE_EMPTY FALSE
// #define DXE_SKUID_TABLE_EMPTY TRUE
// #define DXE_DATABASE_EMPTY FALSE
// #define DXE_EXMAP_TABLE_EMPTY TRUE
//
// typedef struct {
//
//
//
//
//
// DYNAMICEX_MAPPING ExMapTable[DXE_EXMAPPING_TABLE_SIZE];
// UINT32 LocalTokenNumberTable[DXE_LOCAL_TOKEN_NUMBER_TABLE_SIZE];
// GUID GuidTable[DXE_GUID_TABLE_SIZE];
// STRING_HEAD PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
// STRING_HEAD PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4[1];
//
//
// UINT16 StringTable[6]; /* PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_1[26]; /* PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_2[10]; /* PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_3[13]; /* PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_4[26]; /* PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_5[51]; /* PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_6[54]; /* PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// UINT16 StringTable_7[26]; /* PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
//
// SIZE_INFO SizeTable[DXE_SIZE_TABLE_SIZE];
// UINT16 PcdPlatformBootTimeOutDefault_a1aff049_fdeb_442a_b320_13ab4cb72bbc[1];
//
//
//
//
//
//
// UINT8 SkuIdTable[DXE_SKUID_TABLE_SIZE];
//
// } DXE_PCD_DATABASE_INIT;
//
// typedef struct {
// UINT8 dummy; /* PCD_DATABASE_UNINIT is emptry */
//
//
//
//
//
// } DXE_PCD_DATABASE_UNINIT;
//
// #define PCD_DXE_SERVICE_DRIVER_VERSION 2
//
// typedef struct {
// DXE_PCD_DATABASE_INIT Init;
// DXE_PCD_DATABASE_UNINIT Uninit;
// } DXE_PCD_DATABASE;
//
// #define DXE_NEX_TOKEN_NUMBER (DXE_LOCAL_TOKEN_NUMBER - DXE_EX_TOKEN_NUMBER)
//
// typedef struct {
// PEI_PCD_DATABASE PeiDb;
// DXE_PCD_DATABASE DxeDb;
// } PCD_DATABASE;
//
// #define PCD_TOTAL_TOKEN_NUMBER (PEI_LOCAL_TOKEN_NUMBER + DXE_LOCAL_TOKEN_NUMBER)
//
//
// DXE_PCD_DATABASE_INIT gDXEPcdDbInit = {
//
//
//
//
// /* VPD */
//
// /* ExMapTable */
// {
// { 0, 0, 0 },
//
// },
// /* LocalTokenNumberTable */
// {
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4) | PCD_DATUM_TYPE_POINTER | PCD_TYPE_STRING,
// offsetof(DXE_PCD_DATABASE, Init.PcdPlatformBootTimeOutDefault_a1aff049_fdeb_442a_b320_13ab4cb72bbc) | PCD_TYPE_DATA | PCD_DATUM_TYPE_UINT16,
//
// },
// /* GuidTable */
// {
// {0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
//
// },
// { 0 }, /* PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 6 }, /* PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 32 }, /* PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 42 }, /* PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 55 }, /* PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 81 }, /* PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 132 }, /* PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
// { 186 }, /* PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4[1] */
//
//
// /* StringTable */
// L"64!64", /* PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"UGA Window 1!UGA Window 2", /* PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"COM1!COM2", /* PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"FW;40960;512", /* PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"UGA Window 1!UGA Window 2", /* PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"a:RW;2880;512!d:RO;307200;2048!j:RW;262144;512", /* PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L".!..\\..\\..\\..\\EdkShellBinPkg\\Bin\\Ia32\\Apps", /* PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// L"Bus Driver Console Window", /* PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// /* SizeTable */
// {
// 10, 10, /* PcdWinNtMemorySize_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 50, 50, /* PcdWinNtGop_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 18, 18, /* PcdWinNtSerialPort_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 24, 24, /* PcdWinNtVirtualDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 50, 50, /* PcdWinNtUga_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 100, 92, /* PcdWinNtPhysicalDisk_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 106, 98, /* PcdWinNtFileSystem_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
// 50, 50, /* PcdWinNtConsole_0d79a645_1d91_40a6_a81f_61e6982b32b4 */
//
// },
// { 10 }, /* PcdPlatformBootTimeOutDefault_a1aff049_fdeb_442a_b320_13ab4cb72bbc[1] */
//
//
//
//
//
//
// /* SkuIdTable */
// { 0, },
//
//};