audk/DuetPkg/Include/EfiFlashMap.h

/** @file

Copyright (c) 2004 - 2010, Intel Corporation                                                         
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.             

Module Name:

  EfiFlashMap.h

Abstract:

  Defines for the EFI Flash Map functionality
  
**/

#ifndef _EFI_FLASHMAP_H_
#define _EFI_FLASHMAP_H_

//
// Definition for flash map GUIDed HOBs
//
typedef UINT32  EFI_FLASH_AREA_ATTRIBUTES;

#define EFI_FLASH_AREA_FV           0x0001
#define EFI_FLASH_AREA_SUBFV        0x0002
#define EFI_FLASH_AREA_MEMMAPPED_FV 0x0004
#define EFI_FLASH_AREA_REQUIRED     0x0008
#define EFI_FLASH_AREA_CORRUPT      0x0010

typedef UINT8   EFI_FLASH_AREA_TYPE;

#define EFI_FLASH_AREA_RECOVERY_BIOS  0x0   // Recovery code
#define EFI_FLASH_AREA_MAIN_BIOS      0x1   // Regular BIOS code
#define EFI_FLASH_AREA_PAL_B          0x2   // PAL-B
#define EFI_FLASH_AREA_RESERVED_03    0x3   // Reserved for backwards compatibility
#define EFI_FLASH_AREA_RESERVED_04    0x4   // Reserved for backwards compatibility
#define EFI_FLASH_AREA_DMI_FRU        0x5   // DMI FRU information
#define EFI_FLASH_AREA_OEM_BINARY     0x6   // OEM Binary Code/data
#define EFI_FLASH_AREA_RESERVED_07    0x7   // Reserved for backwards compatibility
#define EFI_FLASH_AREA_RESERVED_08    0x8   // Reserved for backwards compatibility
#define EFI_FLASH_AREA_RESERVED_09    0x9   // Reserved for backwards compatibility
#define EFI_FLASH_AREA_RESERVED_0A    0x0a  // Reserved for backwards compatibility
#define EFI_FLASH_AREA_EFI_VARIABLES  0x0b  // EFI variables
#define EFI_FLASH_AREA_MCA_LOG        0x0c  // MCA error log
#define EFI_FLASH_AREA_SMBIOS_LOG     0x0d  // SMBIOS error log
#define EFI_FLASH_AREA_FTW_BACKUP     0x0e  // A backup block during FTW operations
#define EFI_FLASH_AREA_FTW_STATE      0x0f  // State information during FTW operations
#define EFI_FLASH_AREA_UNUSED         0x0fd // Not used
#define EFI_FLASH_AREA_GUID_DEFINED   0x0fe // Usage defined by a GUID
#pragma pack(1)
//
// An individual sub-area Entry.
// A single flash area may consist of  more than one sub-area.
//
/**
typedef struct {
  EFI_FLASH_AREA_ATTRIBUTES Attributes;
  UINT32                    Reserved;
  EFI_PHYSICAL_ADDRESS      Base;
  EFI_PHYSICAL_ADDRESS      Length;
  EFI_GUID                  FileSystem;
} EFI_FLASH_SUBAREA_ENTRY;

typedef struct {
  UINT8                   Reserved[3];
  EFI_FLASH_AREA_TYPE     AreaType;
  EFI_GUID                AreaTypeGuid;
  UINT32                  NumEntries;
  EFI_FLASH_SUBAREA_ENTRY Entries[1];
} EFI_FLASH_MAP_ENTRY_DATA;

typedef struct {
  UINT8                   Reserved[3];
  EFI_FLASH_AREA_TYPE     AreaType;
  EFI_GUID                AreaTypeGuid;
  UINT32                  NumberOfEntries;
  EFI_FLASH_SUBAREA_ENTRY Entries[1];
  //
  // Extended Hob data.
  //
  // VolumeId and FilePath indicating a unique file.
  //
  UINT32                  VolumeId;
  CHAR16                  FilePath[256];
  UINT32                  ActuralSize;
  UINT32                  Offset;
} EFI_FLASH_MAP_FS_ENTRY_DATA;

typedef struct {
  EFI_HOB_GENERIC_HEADER  Header;
  EFI_GUID                Name;
  UINT8                   Reserved[3];
  EFI_FLASH_AREA_TYPE     AreaType;
  EFI_GUID                AreaTypeGuid;
  UINT32                  NumEntries;
  EFI_FLASH_SUBAREA_ENTRY Entries[1];
} EFI_HOB_FLASH_MAP_ENTRY_TYPE;

//
// Internal definitions
//
typedef struct {
  UINT8                   Reserved[3];
  EFI_FLASH_AREA_TYPE     AreaType;
  EFI_GUID                AreaTypeGuid;
  UINT32                  NumberOfEntries;
  EFI_FLASH_SUBAREA_ENTRY SubAreaData;
} EFI_FLASH_AREA_HOB_DATA;

typedef struct {
  UINTN                     Base;
  UINTN                     Length;
  EFI_FLASH_AREA_ATTRIBUTES Attributes;
  EFI_FLASH_AREA_TYPE       AreaType;
  UINT8                     Reserved[3];
  EFI_GUID                  AreaTypeGuid;
} EFI_FLASH_AREA_DATA;
**/

typedef struct {
  EFI_FLASH_AREA_ATTRIBUTES Attributes;
  UINT32                    Reserved;
  EFI_PHYSICAL_ADDRESS      Base;
  EFI_PHYSICAL_ADDRESS      Length;
  EFI_GUID                  FileSystem;
} EFI_FLASH_SUBAREA_ENTRY;

typedef struct {
  UINT8                   Reserved[3];
  EFI_FLASH_AREA_TYPE     AreaType;
  EFI_GUID                AreaTypeGuid;
  UINT32                  NumberOfEntries;
  EFI_FLASH_SUBAREA_ENTRY Entries[1];
  //
  // Extended Hob data.
  //
  // VolumeId and FilePath indicating a unique file.
  //
  UINT32                  VolumeId;
  CHAR16                  FilePath[258];
  UINT32                  ActuralSize;
  UINT32                  Offset;
} EFI_FLASH_MAP_FS_ENTRY_DATA;

#pragma pack()

#endif // #ifndef _EFI_FLASHMAP_H_