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 EFIAPI
  26 DxeCoreUefiDecompressLibConstructor (
  27   IN EFI_HANDLE        ImageHandle,
  28   IN EFI_SYSTEM_TABLE  *SystemTable
  29   )
  30 /*++
  31
  32 Routine Description:
  33
  34 Arguments:
  35
  36 Returns:
  37
  38 --*/
  39 {
  40   EFI_HOB_GUID_TYPE  *GuidHob;
  41
  42   GuidHob = GetFirstGuidHob (&gEfiDecompressProtocolGuid);
  43   ASSERT (GuidHob != NULL);
  44   CopyMem (&mEfiDecompress, GET_GUID_HOB_DATA (GuidHob), sizeof (mEfiDecompress));
  45   return EFI_SUCCESS;
  46 }
  47
  48 RETURN_STATUS
  49 EFIAPI
  50 UefiDecompressGetInfo (
  51   IN  CONST VOID  *Source,
  52   IN  UINT32      SourceSize,
  53   OUT UINT32      *DestinationSize,
  54   OUT UINT32      *ScratchSize
  55   )
  56 /*++
  57
  58 Routine Description:
  59
  60   The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().
  61
  62 Arguments:
  63
  64   Source          - The source buffer containing the compressed data.
  65   SourceSize      - The size of source buffer
  66   DestinationSize - The size of destination buffer.
  67   ScratchSize     - The size of scratch buffer.
  68
  69 Returns:
  70
  71   RETURN_SUCCESS           - The size of destination buffer and the size of scratch buffer are successull retrieved.
  72   RETURN_INVALID_PARAMETER - The source data is corrupted
  73
  74 --*/
  75 {
  76   return mEfiDecompress.GetInfo (Source, SourceSize, DestinationSize, ScratchSize);
  77 }
  78
  79 RETURN_STATUS
  80 EFIAPI
  81 UefiDecompress (
  82   IN CONST VOID  *Source,
  83   IN OUT VOID    *Destination,
  84   IN OUT VOID    *Scratch
  85   )
  86 /*++
  87
  88 Routine Description:
  89
  90   The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().
  91
  92 Arguments:
  93
  94   Source          - The source buffer containing the compressed data.
  95   Destination     - The destination buffer to store the decompressed data
  96   Scratch         - The buffer used internally by the decompress routine. This  buffer is needed to store intermediate data.
  97
  98 Returns:
  99
 100   RETURN_SUCCESS           - Decompression is successfull
 101   RETURN_INVALID_PARAMETER - The source data is corrupted
 102
 103 --*/
 104 {
 105   return mEfiDecompress.Decompress (Source, Destination, Scratch);
 106 }