Add PPI definitions introduced in PI1.0.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2650 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
137
MdePkg/Include/Ppi/ReadOnlyVariable2.h
Normal file
137
MdePkg/Include/Ppi/ReadOnlyVariable2.h
Normal file
@@ -0,0 +1,137 @@
|
||||
/** @file
|
||||
This file declares Read-only Variable Service PPI
|
||||
|
||||
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.
|
||||
|
||||
Module Name: ReadOnlyVariable.h
|
||||
|
||||
@par Revision Reference:
|
||||
This PPI is defined in PI
|
||||
Version 1.00.
|
||||
|
||||
**/
|
||||
|
||||
#ifndef __PEI_READ_ONLY_VARIABLE2_PPI_H__
|
||||
#define __PEI_READ_ONLY_VARIABLE2_PPI_H__
|
||||
|
||||
#define EFI_PEI_READ_ONLY_VARIABLE2_PPI_GUID \
|
||||
{ 0x2ab86ef5, 0xecb5, 0x4134, { 0xb5, 0x56, 0x38, 0x54, 0xca, 0x1f, 0xe1, 0xb4 } }
|
||||
|
||||
|
||||
typedef struct _EFI_PEI_READ_ONLY_VARIABLE2_PPI EFI_PEI_READ_ONLY_VARIABLE2_PPI;
|
||||
|
||||
/**
|
||||
Read the specified variable from the UEFI variable store. If the Data
|
||||
buffer is too small to hold the contents of the variable,
|
||||
the error EFI_BUFFER_TOO_SMALL is returned and DataSize is set to the
|
||||
required buffer size to obtain the data.
|
||||
|
||||
@param This A pointer to this instance of the EFI_PEI_READ_ONLY_VARIABLE2_PPI.
|
||||
|
||||
@param VariableName A pointer to a null-terminated string that is the variable<6C><65>s name.
|
||||
|
||||
@param VendorGuid A pointer to an EFI_GUID that is the variable<6C><65>s GUID. The combination of
|
||||
VariableGuid and VariableName must be unique.
|
||||
|
||||
@param Attributes If non-NULL, on return, points to the variable<6C><65>s attributes. See <20><>Related Definitons<6E><73>
|
||||
below for possible attribute values.
|
||||
|
||||
@param DataSize On entry, points to the size in bytes of the Data buffer. On return, points to the size of
|
||||
the data returned in Data.
|
||||
|
||||
@param Data Points to the buffer which will hold the returned variable value.
|
||||
|
||||
|
||||
@retval EFI_SUCCESS The function completed successfully.
|
||||
|
||||
@retval EFI_NOT_FOUND The variable was not found.
|
||||
|
||||
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the resulting data.
|
||||
DataSize is updated with the size required for
|
||||
the specified variable.
|
||||
|
||||
@retval EFI_INVALID_PARAMETER VariableName, VariableGuid, DataSize or Data is NULL.
|
||||
|
||||
@retval EFI_DEVICE_ERROR The variable could not be retrieved because of a device error.
|
||||
|
||||
**/
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_PEI_GET_VARIABLE2)(
|
||||
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
|
||||
IN CONST CHAR16 *VariableName,
|
||||
IN CONST EFI_GUID *VariableGuid,
|
||||
OUT UINT32 *Attributes,
|
||||
IN OUT UINTN *DataSize,
|
||||
OUT VOID *Data
|
||||
);
|
||||
|
||||
|
||||
/**
|
||||
This function is called multiple times to retrieve the VariableName
|
||||
and VariableGuid of all variables currently available in the system.
|
||||
On each call, the previous results are passed into the interface,
|
||||
and, on return, the interface returns the data for the next
|
||||
interface. When the entire variable list has been returned,
|
||||
EFI_NOT_FOUND is returned.
|
||||
|
||||
@param This A pointer to this instance of the EFI_PEI_READ_ONLY_VARIABLE2_PPI.
|
||||
|
||||
@param VariableNameSize On entry, points to the size of the buffer pointed to by VariableName.
|
||||
|
||||
@param VariableName On entry, a pointer to a null-terminated string that is the variable<6C><65>s name.
|
||||
On return, points to the next variable<6C><65>s null-terminated name string.
|
||||
|
||||
@param VendorGuid On entry, a pointer to an UEFI _GUID that is the variable<6C><65>s GUID.
|
||||
On return, a pointer to the next variable<6C><65>s GUID.
|
||||
|
||||
|
||||
@retval EFI_SUCCESS The variable was read successfully.
|
||||
|
||||
@retval EFI_NOT_FOUND The variable could not be found.
|
||||
|
||||
@retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the resulting
|
||||
data. VariableNameSize is updated with the size
|
||||
required for the specified variable.
|
||||
|
||||
@retval EFI_INVALID_PARAMETER VariableName, VariableGuid or
|
||||
VariableNameSize is NULL.
|
||||
|
||||
@retval EFI_DEVICE_ERROR The variable could not be retrieved because of a device error.
|
||||
|
||||
**/
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_PEI_NEXT_VARIABLE_NAME2) (
|
||||
IN CONST EFI_PEI_READ_ONLY_VARIABLE2_PPI *This,
|
||||
IN OUT UINTN *VariableNameSize,
|
||||
IN OUT CHAR16 *VariableName,
|
||||
IN OUT EFI_GUID *VariableGuid
|
||||
);
|
||||
|
||||
/**
|
||||
This PPI provides a lightweight, read-only variant of the full EFI
|
||||
variable services.
|
||||
|
||||
@param GetVariable
|
||||
A service to ascertain a given variable name.
|
||||
|
||||
@param GetNextVariableName
|
||||
A service to ascertain a variable based upon a given, known variable
|
||||
|
||||
**/
|
||||
struct _EFI_PEI_READ_ONLY_VARIABLE2_PPI {
|
||||
EFI_PEI_GET_VARIABLE2 GetVariable;
|
||||
EFI_PEI_NEXT_VARIABLE_NAME2 NextVariableName;
|
||||
};
|
||||
|
||||
extern EFI_GUID gEfiPeiReadOnlyVariable2PpiGuid;
|
||||
|
||||
#endif
|
Reference in New Issue
Block a user