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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 | |
2f88bd3a MK |
19 | #define CDVOL_TYPE_STANDARD 0x0\r |
20 | #define CDVOL_TYPE_CODED 0x1\r | |
21 | #define CDVOL_TYPE_END 0xFF\r | |
a7ed1e2e | 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 | |
2f88bd3a | 31 | #define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"\r |
a7ed1e2e | 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 | |
2f88bd3a MK |
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 | |
a7ed1e2e | 50 | \r |
766f4bc1 | 51 | #pragma pack(1)\r |
52 | \r | |
9095d37b | 53 | ///\r |
13c31065 | 54 | /// CD-ROM Volume Descriptor\r |
9095d37b LG |
55 | ///\r |
56 | typedef union {\r | |
3052ec6b | 57 | struct {\r |
2f88bd3a MK |
58 | UINT8 Type;\r |
59 | CHAR8 Id[5]; ///< "CD001"\r | |
60 | CHAR8 Reserved[82];\r | |
3052ec6b | 61 | } Unknown;\r |
62 | \r | |
1833218d | 63 | ///\r |
64 | /// Boot Record Volume Descriptor, defined in "El Torito" Specification.\r | |
65 | ///\r | |
3052ec6b | 66 | struct {\r |
2f88bd3a MK |
67 | UINT8 Type; ///< Must be 0\r |
68 | CHAR8 Id[5]; ///< "CD001"\r | |
69 | UINT8 Version; ///< Must be 1\r | |
70 | CHAR8 SystemId[32]; ///< "EL TORITO SPECIFICATION"\r | |
71 | CHAR8 Unused[32]; ///< Must be 0\r | |
72 | UINT8 EltCatalog[4]; ///< Absolute pointer to first sector of Boot Catalog\r | |
73 | CHAR8 Unused2[13]; ///< Must be 0\r | |
3052ec6b | 74 | } BootRecordVolume;\r |
9095d37b | 75 | \r |
1833218d | 76 | ///\r |
b219e2cd | 77 | /// Primary Volume Descriptor, defined in ISO 9660.\r |
1833218d | 78 | ///\r |
3052ec6b | 79 | struct {\r |
2f88bd3a MK |
80 | UINT8 Type;\r |
81 | CHAR8 Id[5]; ///< "CD001"\r | |
82 | UINT8 Version;\r | |
83 | UINT8 Unused; ///< Must be 0\r | |
84 | CHAR8 SystemId[32];\r | |
85 | CHAR8 VolumeId[32];\r | |
86 | UINT8 Unused2[8]; ///< Must be 0\r | |
87 | UINT32 VolSpaceSize[2]; ///< the number of Logical Blocks\r | |
3052ec6b | 88 | } PrimaryVolume;\r |
9095d37b | 89 | } CDROM_VOLUME_DESCRIPTOR;\r |
a7ed1e2e | 90 | \r |
1bc5d021 | 91 | ///\r |
92 | /// Catalog Entry\r | |
93 | ///\r | |
a7ed1e2e | 94 | typedef union {\r |
95 | struct {\r | |
2f88bd3a | 96 | CHAR8 Reserved[0x20];\r |
a7ed1e2e | 97 | } Unknown;\r |
98 | \r | |
1bc5d021 | 99 | ///\r |
100 | /// Catalog validation entry (Catalog header)\r | |
101 | ///\r | |
a7ed1e2e | 102 | struct {\r |
2f88bd3a MK |
103 | UINT8 Indicator; ///< Must be 01\r |
104 | UINT8 PlatformId;\r | |
105 | UINT16 Reserved;\r | |
106 | CHAR8 ManufacId[24];\r | |
107 | UINT16 Checksum;\r | |
108 | UINT16 Id55AA;\r | |
a7ed1e2e | 109 | } Catalog;\r |
110 | \r | |
1bc5d021 | 111 | ///\r |
112 | /// Initial/Default Entry or Section Entry\r | |
113 | ///\r | |
a7ed1e2e | 114 | struct {\r |
2f88bd3a MK |
115 | UINT8 Indicator; ///< 88 = Bootable, 00 = Not Bootable\r |
116 | UINT8 MediaType : 4;\r | |
117 | UINT8 Reserved1 : 4; ///< Must be 0\r | |
118 | UINT16 LoadSegment;\r | |
119 | UINT8 SystemType;\r | |
120 | UINT8 Reserved2; ///< Must be 0\r | |
121 | UINT16 SectorCount;\r | |
122 | UINT32 Lba;\r | |
a7ed1e2e | 123 | } Boot;\r |
124 | \r | |
1bc5d021 | 125 | ///\r |
126 | /// Section Header Entry\r | |
127 | ///\r | |
a7ed1e2e | 128 | struct {\r |
2f88bd3a MK |
129 | UINT8 Indicator; ///< 90 - Header, more header follw, 91 - Final Header\r |
130 | UINT8 PlatformId;\r | |
131 | UINT16 SectionEntries; ///< Number of section entries following this header\r | |
132 | CHAR8 Id[28];\r | |
a7ed1e2e | 133 | } Section;\r |
a7ed1e2e | 134 | } ELTORITO_CATALOG;\r |
135 | \r | |
766f4bc1 | 136 | #pragma pack()\r |
137 | \r | |
a7ed1e2e | 138 | #endif\r |