MdePkg/Include/Ppi/Decompress.h

   1 /** @file
   2   Provides decompression services to the PEI Foundatoin.
   3
   4   Copyright (c) 2006 - 2008, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   @par Revision Reference:
  14   This PPI is introduced in PI Version 1.0.
  15
  16 **/
  17
  18 #ifndef __DECOMPRESS_PPI_H__
  19 #define __DECOMPRESS_PPI_H__
  20
  21 #define EFI_PEI_DECOMPRESS_PPI_GUID \
  22   { 0x1a36e4e7, 0xfab6, 0x476a, { 0x8e, 0x75, 0x69, 0x5a, 0x5, 0x76, 0xfd, 0xd7 } }
  23
  24 typedef struct _EFI_PEI_DECOMPRESS_PPI  EFI_PEI_DECOMPRESS_PPI;
  25
  26 /**
  27   Decompress a single compression section in a firmware file.
  28
  29   Decompresses the data in a compressed section and returns it
  30   as a series of standard PI Firmware File Sections. The
  31   required memory is allocated from permanent memory.
  32
  33   @param This                   Points to this instance of the
  34                                 EFI_PEI_DECOMPRESS_PEI PPI.
  35   @param InputSection           Points to the compressed section.
  36   @param OutputBuffer           Holds the returned pointer to the
  37                                 decompressed sections.
  38   @param OutputSize             Holds the returned size of the decompress
  39                                 section streams.
  40
  41   @retval EFI_SUCCESS           The section was decompressed
  42                                 successfully. OutputBuffer contains the
  43                                 resulting data and OutputSize contains
  44                                 the resulting size.
  45   @retval EFI_OUT_OF_RESOURCES  Unable to allocate sufficient
  46                                 memory to hold the decompressed data.
  47   @retval EFI_UNSUPPORTED       The compression type specified
  48                                 in the compression header is unsupported.
  49
  50 **/
  51 typedef
  52 EFI_STATUS
  53 (EFIAPI *EFI_PEI_DECOMPRESS_DECOMPRESS)(
  54   IN  CONST EFI_PEI_DECOMPRESS_PPI  *This,
  55   IN  CONST EFI_COMPRESSION_SECTION *InputSection,
  56   OUT VOID                           **OutputBuffer,
  57   OUT UINTN                          *OutputSize
  58 );
  59
  60
  61 ///
  62 /// This PPI's single member function decompresses a compression
  63 /// encapsulated section. It is used by the PEI Foundation to
  64 /// process sectioned files. Prior to the installation of this PPI,
  65 /// compression sections will be ignored.
  66 ///
  67 struct _EFI_PEI_DECOMPRESS_PPI {
  68   EFI_PEI_DECOMPRESS_DECOMPRESS Decompress;
  69 };
  70
  71
  72 extern EFI_GUID   gEfiPeiDecompressPpiGuid;
  73
  74 #endif