Dxe/FwVol/FwVolAttrib.c

	FwVolAttrib.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
  Implements get/set firmware volume attributes

Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
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"
#include "FwVolDriver.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;

  //
  // 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;
}