EdkModulePkg/Library/DxeCoreUefiDecompressLibFromHob/DxeCoreUefiDecompressLibFromHob.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   DxeCoreUefiDecompressLibFromHob.c
  15
  16 Abstract:
  17
  18   UEFI Decompress Library from HOBs
  19
  20 --*/
  21
  22 static DECOMPRESS_LIBRARY  mEfiDecompress;
  23
  24 EFI_STATUS
  25 DxeCoreUefiDecompressLibConstructor (
  26   IN EFI_HANDLE        ImageHandle,
  27   IN EFI_SYSTEM_TABLE  *SystemTable
  28   )
  29 /*++
  30
  31 Routine Description:
  32
  33 Arguments:
  34
  35 Returns:
  36
  37 --*/
  38 {
  39   EFI_HOB_GUID_TYPE  *GuidHob;
  40
  41   GuidHob = GetFirstGuidHob (&gEfiDecompressProtocolGuid);
  42   ASSERT (GuidHob != NULL);
  43   CopyMem (&mEfiDecompress, GET_GUID_HOB_DATA (GuidHob), sizeof (mEfiDecompress));
  44   return EFI_SUCCESS;
  45 }
  46
  47 RETURN_STATUS
  48 EFIAPI
  49 UefiDecompressGetInfo (
  50   IN  CONST VOID  *Source,
  51   IN  UINT32      SourceSize,
  52   OUT UINT32      *DestinationSize,
  53   OUT UINT32      *ScratchSize
  54   )
  55 /*++
  56
  57 Routine Description:
  58
  59   The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().
  60
  61 Arguments:
  62
  63   Source          - The source buffer containing the compressed data.
  64   SourceSize      - The size of source buffer
  65   DestinationSize - The size of destination buffer.
  66   ScratchSize     - The size of scratch buffer.
  67
  68 Returns:
  69
  70   RETURN_SUCCESS           - The size of destination buffer and the size of scratch buffer are successull retrieved.
  71   RETURN_INVALID_PARAMETER - The source data is corrupted
  72
  73 --*/
  74 {
  75   return mEfiDecompress.GetInfo (Source, SourceSize, DestinationSize, ScratchSize);
  76 }
  77
  78 RETURN_STATUS
  79 EFIAPI
  80 UefiDecompress (
  81   IN CONST VOID  *Source,
  82   IN OUT VOID    *Destination,
  83   IN OUT VOID    *Scratch
  84   )
  85 /*++
  86
  87 Routine Description:
  88
  89   The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().
  90
  91 Arguments:
  92
  93   Source          - The source buffer containing the compressed data.
  94   Destination     - The destination buffer to store the decompressed data
  95   Scratch         - The buffer used internally by the decompress routine. This  buffer is needed to store intermediate data.
  96
  97 Returns:
  98
  99   RETURN_SUCCESS           - Decompression is successfull
 100   RETURN_INVALID_PARAMETER - The source data is corrupted
 101
 102 --*/
 103 {
 104   return mEfiDecompress.Decompress (Source, Destination, Scratch);
 105 }