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a7ed1e2e | 1 | /** @file\r |
9095d37b | 2 | ElTorito Partitions Format Definition.\r |
b219e2cd | 3 | This file includes some definitions from\r |
3052ec6b | 4 | 1. "El Torito" Bootable CD-ROM Format Specification, Version 1.0.\r |
9095d37b | 5 | 2. Volume and File Structure of CDROM for Information Interchange,\r |
3052ec6b | 6 | Standard ECMA-119. (IS0 9660)\r |
a7ed1e2e | 7 | \r |
9095d37b | 8 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a7ed1e2e | 10 | \r |
67e66cd5 | 11 | **/\r |
a7ed1e2e | 12 | \r |
13 | #ifndef _ELTORITO_H_\r | |
14 | #define _ELTORITO_H_\r | |
15 | \r | |
a2461f6b | 16 | //\r |
17 | // CDROM_VOLUME_DESCRIPTOR.Types, defined in ISO 9660\r | |
18 | //\r | |
a7ed1e2e | 19 | #define CDVOL_TYPE_STANDARD 0x0\r |
20 | #define CDVOL_TYPE_CODED 0x1\r | |
21 | #define CDVOL_TYPE_END 0xFF\r | |
22 | \r | |
1bc5d021 | 23 | ///\r |
24 | /// CDROM_VOLUME_DESCRIPTOR.Id\r | |
25 | ///\r | |
a7ed1e2e | 26 | #define CDVOL_ID "CD001"\r |
27 | \r | |
1bc5d021 | 28 | ///\r |
29 | /// CDROM_VOLUME_DESCRIPTOR.SystemId\r | |
30 | ///\r | |
a7ed1e2e | 31 | #define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"\r |
32 | \r | |
33 | //\r | |
34 | // Indicator types\r | |
35 | //\r | |
36 | #define ELTORITO_ID_CATALOG 0x01\r | |
37 | #define ELTORITO_ID_SECTION_BOOTABLE 0x88\r | |
38 | #define ELTORITO_ID_SECTION_NOT_BOOTABLE 0x00\r | |
39 | #define ELTORITO_ID_SECTION_HEADER 0x90\r | |
40 | #define ELTORITO_ID_SECTION_HEADER_FINAL 0x91\r | |
41 | \r | |
42 | //\r | |
43 | // ELTORITO_CATALOG.Boot.MediaTypes\r | |
44 | //\r | |
45 | #define ELTORITO_NO_EMULATION 0x00\r | |
46 | #define ELTORITO_12_DISKETTE 0x01\r | |
47 | #define ELTORITO_14_DISKETTE 0x02\r | |
48 | #define ELTORITO_28_DISKETTE 0x03\r | |
49 | #define ELTORITO_HARD_DISK 0x04\r | |
50 | \r | |
51 | \r | |
766f4bc1 | 52 | #pragma pack(1)\r |
53 | \r | |
9095d37b | 54 | ///\r |
13c31065 | 55 | /// CD-ROM Volume Descriptor\r |
9095d37b LG |
56 | ///\r |
57 | typedef union {\r | |
3052ec6b | 58 | struct {\r |
9095d37b LG |
59 | UINT8 Type;\r |
60 | CHAR8 Id[5]; ///< "CD001"\r | |
3052ec6b | 61 | CHAR8 Reserved[82];\r |
62 | } Unknown;\r | |
63 | \r | |
1833218d | 64 | ///\r |
65 | /// Boot Record Volume Descriptor, defined in "El Torito" Specification.\r | |
66 | ///\r | |
3052ec6b | 67 | struct {\r |
68 | UINT8 Type; ///< Must be 0\r | |
9095d37b LG |
69 | CHAR8 Id[5]; ///< "CD001"\r |
70 | UINT8 Version; ///< Must be 1\r | |
71 | CHAR8 SystemId[32]; ///< "EL TORITO SPECIFICATION"\r | |
72 | CHAR8 Unused[32]; ///< Must be 0\r | |
3052ec6b | 73 | UINT8 EltCatalog[4]; ///< Absolute pointer to first sector of Boot Catalog\r |
74 | CHAR8 Unused2[13]; ///< Must be 0\r | |
75 | } BootRecordVolume;\r | |
9095d37b | 76 | \r |
1833218d | 77 | ///\r |
b219e2cd | 78 | /// Primary Volume Descriptor, defined in ISO 9660.\r |
1833218d | 79 | ///\r |
3052ec6b | 80 | struct {\r |
9095d37b | 81 | UINT8 Type;\r |
3052ec6b | 82 | CHAR8 Id[5]; ///< "CD001"\r |
9095d37b | 83 | UINT8 Version;\r |
3052ec6b | 84 | UINT8 Unused; ///< Must be 0\r |
9095d37b LG |
85 | CHAR8 SystemId[32];\r |
86 | CHAR8 VolumeId[32];\r | |
87 | UINT8 Unused2[8]; ///< Must be 0\r | |
3052ec6b | 88 | UINT32 VolSpaceSize[2]; ///< the number of Logical Blocks\r |
89 | } PrimaryVolume;\r | |
90 | \r | |
9095d37b | 91 | } CDROM_VOLUME_DESCRIPTOR;\r |
a7ed1e2e | 92 | \r |
1bc5d021 | 93 | ///\r |
94 | /// Catalog Entry\r | |
95 | ///\r | |
a7ed1e2e | 96 | typedef union {\r |
97 | struct {\r | |
98 | CHAR8 Reserved[0x20];\r | |
99 | } Unknown;\r | |
100 | \r | |
1bc5d021 | 101 | ///\r |
102 | /// Catalog validation entry (Catalog header)\r | |
103 | ///\r | |
a7ed1e2e | 104 | struct {\r |
1833218d | 105 | UINT8 Indicator; ///< Must be 01\r |
a7ed1e2e | 106 | UINT8 PlatformId;\r |
107 | UINT16 Reserved;\r | |
108 | CHAR8 ManufacId[24];\r | |
109 | UINT16 Checksum;\r | |
110 | UINT16 Id55AA;\r | |
111 | } Catalog;\r | |
112 | \r | |
1bc5d021 | 113 | ///\r |
114 | /// Initial/Default Entry or Section Entry\r | |
115 | ///\r | |
a7ed1e2e | 116 | struct {\r |
1833218d | 117 | UINT8 Indicator; ///< 88 = Bootable, 00 = Not Bootable\r |
a7ed1e2e | 118 | UINT8 MediaType : 4;\r |
1833218d | 119 | UINT8 Reserved1 : 4; ///< Must be 0\r |
a7ed1e2e | 120 | UINT16 LoadSegment;\r |
121 | UINT8 SystemType;\r | |
1833218d | 122 | UINT8 Reserved2; ///< Must be 0\r |
a7ed1e2e | 123 | UINT16 SectorCount;\r |
124 | UINT32 Lba;\r | |
125 | } Boot;\r | |
126 | \r | |
1bc5d021 | 127 | ///\r |
128 | /// Section Header Entry\r | |
129 | ///\r | |
a7ed1e2e | 130 | struct {\r |
1833218d | 131 | UINT8 Indicator; ///< 90 - Header, more header follw, 91 - Final Header\r |
a7ed1e2e | 132 | UINT8 PlatformId;\r |
1833218d | 133 | UINT16 SectionEntries; ///< Number of section entries following this header\r |
a7ed1e2e | 134 | CHAR8 Id[28];\r |
135 | } Section;\r | |
136 | \r | |
137 | } ELTORITO_CATALOG;\r | |
138 | \r | |
766f4bc1 | 139 | #pragma pack()\r |
140 | \r | |
a7ed1e2e | 141 | #endif\r |