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a7ed1e2e | 1 | /** @file\r |
3052ec6b | 2 | ElTorito Partitions Format Definition. \r |
3 | This file includes some defintions from \r | |
4 | 1. "El Torito" Bootable CD-ROM Format Specification, Version 1.0.\r | |
5 | 2. Volume and File Structure of CDROM for Information Interchange, \r | |
6 | Standard ECMA-119. (IS0 9660)\r | |
a7ed1e2e | 7 | \r |
3052ec6b | 8 | Copyright (c) 2006 - 2008, Intel Corporation \r |
a7ed1e2e | 9 | All rights reserved. This program and the accompanying materials \r |
10 | are licensed and made available under the terms and conditions of the BSD License \r | |
11 | which accompanies this distribution. The full text of the license may be found at \r | |
12 | http://opensource.org/licenses/bsd-license.php \r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
16 | \r | |
67e66cd5 | 17 | **/\r |
a7ed1e2e | 18 | \r |
19 | #ifndef _ELTORITO_H_\r | |
20 | #define _ELTORITO_H_\r | |
21 | \r | |
3052ec6b | 22 | ///\r |
23 | /// CDROM_VOLUME_DESCRIPTOR.Types, defined in ISO 9660\r | |
24 | ///\r | |
a7ed1e2e | 25 | #define CDVOL_TYPE_STANDARD 0x0\r |
26 | #define CDVOL_TYPE_CODED 0x1\r | |
27 | #define CDVOL_TYPE_END 0xFF\r | |
28 | \r | |
1bc5d021 | 29 | ///\r |
30 | /// CDROM_VOLUME_DESCRIPTOR.Id\r | |
31 | ///\r | |
a7ed1e2e | 32 | #define CDVOL_ID "CD001"\r |
33 | \r | |
1bc5d021 | 34 | ///\r |
35 | /// CDROM_VOLUME_DESCRIPTOR.SystemId\r | |
36 | ///\r | |
a7ed1e2e | 37 | #define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"\r |
38 | \r | |
39 | //\r | |
40 | // Indicator types\r | |
41 | //\r | |
42 | #define ELTORITO_ID_CATALOG 0x01\r | |
43 | #define ELTORITO_ID_SECTION_BOOTABLE 0x88\r | |
44 | #define ELTORITO_ID_SECTION_NOT_BOOTABLE 0x00\r | |
45 | #define ELTORITO_ID_SECTION_HEADER 0x90\r | |
46 | #define ELTORITO_ID_SECTION_HEADER_FINAL 0x91\r | |
47 | \r | |
48 | //\r | |
49 | // ELTORITO_CATALOG.Boot.MediaTypes\r | |
50 | //\r | |
51 | #define ELTORITO_NO_EMULATION 0x00\r | |
52 | #define ELTORITO_12_DISKETTE 0x01\r | |
53 | #define ELTORITO_14_DISKETTE 0x02\r | |
54 | #define ELTORITO_28_DISKETTE 0x03\r | |
55 | #define ELTORITO_HARD_DISK 0x04\r | |
56 | \r | |
57 | \r | |
58 | #pragma pack(1)\r | |
59 | \r | |
3052ec6b | 60 | /// \r |
1bc5d021 | 61 | /// El Torito Volume Descriptor\r |
62 | /// Note that the CDROM_VOLUME_DESCRIPTOR does not match the ISO-9660\r | |
63 | /// descriptor. For some reason descriptor used by El Torito is\r | |
64 | /// different, but they start the same. The El Torito descriptor\r | |
65 | /// is left shifted 1 byte starting with the SystemId. (Note this\r | |
66 | /// causes the field to get unaligned)\r | |
3052ec6b | 67 | /// \r |
68 | typedef union { \r | |
69 | struct {\r | |
70 | UINT8 Type; \r | |
71 | CHAR8 Id[5]; ///< "CD001" \r | |
72 | CHAR8 Reserved[82];\r | |
73 | } Unknown;\r | |
74 | \r | |
75 | struct {\r | |
76 | UINT8 Type; ///< Must be 0\r | |
77 | CHAR8 Id[5]; ///< "CD001" \r | |
78 | UINT8 Version; ///< Must be 1 \r | |
79 | CHAR8 SystemId[32]; ///< "EL TORITO SPECIFICATION" \r | |
80 | CHAR8 Unused[32]; ///< Must be 0 \r | |
81 | UINT8 EltCatalog[4]; ///< Absolute pointer to first sector of Boot Catalog\r | |
82 | CHAR8 Unused2[13]; ///< Must be 0\r | |
83 | } BootRecordVolume;\r | |
84 | \r | |
85 | struct {\r | |
86 | UINT8 Type; \r | |
87 | CHAR8 Id[5]; ///< "CD001"\r | |
88 | UINT8 Version; \r | |
89 | UINT8 Unused; ///< Must be 0\r | |
90 | CHAR8 SystemId[32]; \r | |
91 | CHAR8 VolumeId[32]; \r | |
92 | UINT8 Unused2[8]; ///< Must be 0 \r | |
93 | UINT32 VolSpaceSize[2]; ///< the number of Logical Blocks\r | |
94 | } PrimaryVolume;\r | |
95 | \r | |
96 | } CDROM_VOLUME_DESCRIPTOR; \r | |
a7ed1e2e | 97 | \r |
1bc5d021 | 98 | ///\r |
99 | /// Catalog Entry\r | |
100 | ///\r | |
a7ed1e2e | 101 | typedef union {\r |
102 | struct {\r | |
103 | CHAR8 Reserved[0x20];\r | |
104 | } Unknown;\r | |
105 | \r | |
1bc5d021 | 106 | ///\r |
107 | /// Catalog validation entry (Catalog header)\r | |
108 | ///\r | |
a7ed1e2e | 109 | struct {\r |
110 | UINT8 Indicator;\r | |
111 | UINT8 PlatformId;\r | |
112 | UINT16 Reserved;\r | |
113 | CHAR8 ManufacId[24];\r | |
114 | UINT16 Checksum;\r | |
115 | UINT16 Id55AA;\r | |
116 | } Catalog;\r | |
117 | \r | |
1bc5d021 | 118 | ///\r |
119 | /// Initial/Default Entry or Section Entry\r | |
120 | ///\r | |
a7ed1e2e | 121 | struct {\r |
122 | UINT8 Indicator;\r | |
123 | UINT8 MediaType : 4;\r | |
124 | UINT8 Reserved1 : 4;\r | |
125 | UINT16 LoadSegment;\r | |
126 | UINT8 SystemType;\r | |
127 | UINT8 Reserved2;\r | |
128 | UINT16 SectorCount;\r | |
129 | UINT32 Lba;\r | |
130 | } Boot;\r | |
131 | \r | |
1bc5d021 | 132 | ///\r |
133 | /// Section Header Entry\r | |
134 | ///\r | |
a7ed1e2e | 135 | struct {\r |
136 | UINT8 Indicator;\r | |
137 | UINT8 PlatformId;\r | |
138 | UINT16 SectionEntries;\r | |
139 | CHAR8 Id[28];\r | |
140 | } Section;\r | |
141 | \r | |
142 | } ELTORITO_CATALOG;\r | |
143 | \r | |
144 | #pragma pack()\r | |
145 | \r | |
146 | #endif\r |