MdePkg/Include/IndustryStandard/Udf.h

   1 /** @file
   2   OSTA Universal Disk Format (UDF) definitions.
   3
   4   Copyright (C) 2014-2017 Paulo Alcantara <pcacjr@zytor.com>
   5
   6   This program and the accompanying materials are licensed and made available
   7   under the terms and conditions of the BSD License which accompanies this
   8   distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
  12   WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 **/
  14
  15 #ifndef __UDF_H__
  16 #define __UDF_H__
  17
  18 #define UDF_BEA_IDENTIFIER   "BEA01"
  19 #define UDF_NSR2_IDENTIFIER  "NSR02"
  20 #define UDF_NSR3_IDENTIFIER  "NSR03"
  21 #define UDF_TEA_IDENTIFIER   "TEA01"
  22
  23 #define UDF_LOGICAL_SECTOR_SHIFT  11
  24 #define UDF_LOGICAL_SECTOR_SIZE   ((UINT64)(1ULL << UDF_LOGICAL_SECTOR_SHIFT))
  25 #define UDF_VRS_START_OFFSET      ((UINT64)(16ULL << UDF_LOGICAL_SECTOR_SHIFT))
  26
  27 #define _GET_TAG_ID(_Pointer) \
  28   (((UDF_DESCRIPTOR_TAG *)(_Pointer))->TagIdentifier)
  29
  30 #define IS_AVDP(_Pointer) \
  31   ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 2))
  32
  33 #pragma pack(1)
  34
  35 typedef struct {
  36   UINT16  TagIdentifier;
  37   UINT16  DescriptorVersion;
  38   UINT8   TagChecksum;
  39   UINT8   Reserved;
  40   UINT16  TagSerialNumber;
  41   UINT16  DescriptorCRC;
  42   UINT16  DescriptorCRCLength;
  43   UINT32  TagLocation;
  44 } UDF_DESCRIPTOR_TAG;
  45
  46 typedef struct {
  47   UINT32  ExtentLength;
  48   UINT32  ExtentLocation;
  49 } UDF_EXTENT_AD;
  50
  51 typedef struct {
  52   UDF_DESCRIPTOR_TAG  DescriptorTag;
  53   UDF_EXTENT_AD       MainVolumeDescriptorSequenceExtent;
  54   UDF_EXTENT_AD       ReserveVolumeDescriptorSequenceExtent;
  55   UINT8               Reserved[480];
  56 } UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER;
  57
  58 #pragma pack()
  59
  60 #endif