EdkCompatibilityPkg/Foundation/Framework/Include/TianoSpecDevicePath.h

   1 /*++
   2
   3 Copyright (c) 2004 - 2007, 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   TianoSpecDevicePath.h
  15
  16 Abstract:
  17
  18   Tiano Device Path definitions in Tiano Spec.
  19
  20 --*/
  21
  22 #ifndef _TIANO_SPEC_DEVICE_PATH_H
  23 #define _TIANO_SPEC_DEVICE_PATH_H
  24
  25 #pragma pack(1)
  26
  27 #if (EFI_SPECIFICATION_VERSION < 0x00020000)
  28 //
  29 // EFI Specification extension on Media Device Path
  30 //
  31 #define MEDIA_FV_FILEPATH_DP  0x06
  32 typedef struct {
  33   EFI_DEVICE_PATH_PROTOCOL  Header;
  34   EFI_GUID                  NameGuid;
  35 } MEDIA_FW_VOL_FILEPATH_DEVICE_PATH;
  36 #endif
  37
  38
  39 #if (EFI_SPECIFICATION_VERSION == 0x00020000)
  40 //
  41 // For UEFI 2.0, use GUIDed PIWG device path to work-around EFI Specification extension on Media Device Path
  42 //
  43 typedef struct {
  44   EFI_DEVICE_PATH_PROTOCOL  Header;
  45   EFI_GUID                  PiwgSpecificDevicePath;
  46   UINT32                    Type;
  47 } PIWG_DEVICE_PATH;
  48
  49 #define PIWG_MEDIA_FW_VOL_FILEPATH_DEVICE_PATH_TYPE         0x01
  50 typedef struct {
  51   PIWG_DEVICE_PATH      Piwg;
  52   EFI_GUID              NameGuid;
  53 } MEDIA_FW_VOL_FILEPATH_DEVICE_PATH;
  54
  55 //
  56 // Place holder for a future extension
  57 //
  58 #define PIWG_MEDIA_FW_VOL_DEVICE_PATH_TYPE                  0x02
  59 typedef struct {
  60   PIWG_DEVICE_PATH      Piwg;
  61   EFI_GUID              VolumeGuid;
  62 } MEDIA_FW_VOL_DEVICE_PATH;
  63 #endif
  64
  65 #if (EFI_SPECIFICATION_VERSION > 0x00020000)
  66 //
  67 // EFI Specification extension on Media Device Path was added to UEFI 2.1 specification,
  68 // so the definition is moved to EfiDevicePath.h
  69 //
  70 #endif
  71
  72 #pragma pack()
  73 #endif