audk/MdeModulePkg/Core/Dxe/FwVol/FwVolAttrib.c

142 lines
3.8 KiB
C

/** @file
Implements get/set firmware volume attributes
Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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.
**/
#include "DxeMain.h"
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter.
@param This Calling context
@param Attributes output buffer which contains attributes
@retval EFI_SUCCESS Successfully got volume attributes
**/
EFI_STATUS
EFIAPI
FvGetVolumeAttributes (
IN CONST EFI_FIRMWARE_VOLUME2_PROTOCOL *This,
OUT EFI_FV_ATTRIBUTES *Attributes
)
{
EFI_STATUS Status;
FV_DEVICE *FvDevice;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_FVB_ATTRIBUTES_2 FvbAttributes;
FvDevice = FV_DEVICE_FROM_THIS (This);
Fvb = FvDevice->Fvb;
if (FvDevice->CachedFv == NULL) {
Status = FvCheck (FvDevice);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// First get the Firmware Volume Block Attributes
//
Status = Fvb->GetAttributes (Fvb, &FvbAttributes);
//
// Mask out Fvb bits that are not defined in FV
//
FvbAttributes &= 0xfffff0ff;
*Attributes = (EFI_FV_ATTRIBUTES)FvbAttributes;
return Status;
}
/**
Sets current attributes for volume
@param This Calling context
@param Attributes At input, contains attributes to be set. At output
contains new value of FV
@retval EFI_UNSUPPORTED Could not be set.
**/
EFI_STATUS
EFIAPI
FvSetVolumeAttributes (
IN CONST EFI_FIRMWARE_VOLUME2_PROTOCOL *This,
IN OUT EFI_FV_ATTRIBUTES *Attributes
)
{
return EFI_UNSUPPORTED;
}
/**
Return information of type InformationType for the requested firmware
volume.
@param This Pointer to EFI_FIRMWARE_VOLUME2_PROTOCOL.
@param InformationType InformationType for requested.
@param BufferSize On input, size of Buffer.On output, the amount of data
returned in Buffer.
@param Buffer A poniter to the data buffer to return.
@retval EFI_SUCCESS Successfully got volume Information.
**/
EFI_STATUS
EFIAPI
FvGetVolumeInfo (
IN CONST EFI_FIRMWARE_VOLUME2_PROTOCOL *This,
IN CONST EFI_GUID *InformationType,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
return EFI_UNSUPPORTED;
}
/**
Set information of type InformationType for the requested firmware
volume.
@param This Pointer to EFI_FIRMWARE_VOLUME2_PROTOCOL.
@param InformationType InformationType for requested.
@param BufferSize On input, size of Buffer.On output, the amount of data
returned in Buffer.
@param Buffer A poniter to the data buffer to return.
@retval EFI_SUCCESS Successfully set volume Information.
**/
EFI_STATUS
EFIAPI
FvSetVolumeInfo (
IN CONST EFI_FIRMWARE_VOLUME2_PROTOCOL *This,
IN CONST EFI_GUID *InformationType,
IN UINTN BufferSize,
IN CONST VOID *Buffer
)
{
return EFI_UNSUPPORTED;
}