diff options
Diffstat (limited to 'EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h')
| -rw-r--r-- | EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h b/EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h new file mode 100644 index 0000000000..f085315b4d --- /dev/null +++ b/EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h @@ -0,0 +1,130 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ ElTorito.h
+
+Abstract:
+
+ Data Structures required for detecting ElTorito Partitions
+
+Revision History
+
+--*/
+
+#ifndef _ELTORITO_H_
+#define _ELTORITO_H_
+
+#pragma pack(1)
+//
+// CDROM_VOLUME_DESCRIPTOR.Types
+//
+#define CDVOL_TYPE_STANDARD 0x0
+#define CDVOL_TYPE_CODED 0x1
+#define CDVOL_TYPE_END 0xFF
+
+//
+// CDROM_VOLUME_DESCRIPTOR.Id
+//
+#define CDVOL_ID "CD001"
+
+//
+// CDROM_VOLUME_DESCRIPTOR.SystemId
+//
+#define CDVOL_ELTORITO_ID "EL TORITO SPECIFICATION"
+
+//
+// Indicator types
+//
+#define ELTORITO_ID_CATALOG 0x01
+#define ELTORITO_ID_SECTION_BOOTABLE 0x88
+#define ELTORITO_ID_SECTION_NOT_BOOTABLE 0x00
+#define ELTORITO_ID_SECTION_HEADER 0x90
+#define ELTORITO_ID_SECTION_HEADER_FINAL 0x91
+
+//
+// ELTORITO_CATALOG.Boot.MediaTypes
+//
+#define ELTORITO_NO_EMULATION 0x00
+#define ELTORITO_12_DISKETTE 0x01
+#define ELTORITO_14_DISKETTE 0x02
+#define ELTORITO_28_DISKETTE 0x03
+#define ELTORITO_HARD_DISK 0x04
+
+//
+// El Torito Volume Descriptor
+// Note that the CDROM_VOLUME_DESCRIPTOR does not match the ISO-9660
+// descriptor. For some reason descriptor used by El Torito is
+// different, but they start the same. The El Torito descriptor
+// is left shifted 1 byte starting with the SystemId. (Note this
+// causes the field to get unaligned)
+//
+typedef struct {
+ UINT8 Type;
+ CHAR8 Id[5]; // CD001
+ UINT8 Version;
+ CHAR8 SystemId[26];
+ CHAR8 Unused[38];
+ UINT8 EltCatalog[4];
+ CHAR8 Unused2[5];
+ UINT32 VolSpaceSize[2];
+} CDROM_VOLUME_DESCRIPTOR;
+
+//
+// Catalog Entry
+//
+typedef union {
+ struct {
+ CHAR8 Reserved[0x20];
+ } Unknown;
+
+ //
+ // Catalog validation entry (Catalog header)
+ //
+ struct {
+ UINT8 Indicator;
+ UINT8 PlatformId;
+ UINT16 Reserved;
+ CHAR8 ManufacId[24];
+ UINT16 Checksum;
+ UINT16 Id55AA;
+ } Catalog;
+
+ //
+ // Initial/Default Entry or Section Entry
+ //
+ struct {
+ UINT8 Indicator;
+ UINT8 MediaType : 4;
+ UINT8 Reserved1 : 4;
+ UINT16 LoadSegment;
+ UINT8 SystemType;
+ UINT8 Reserved2;
+ UINT16 SectorCount;
+ UINT32 Lba;
+ } Boot;
+
+ //
+ // Section Header Entry
+ //
+ struct {
+ UINT8 Indicator;
+ UINT8 PlatformId;
+ UINT16 SectionEntries;
+ CHAR8 Id[28];
+ } Section;
+
+} ELTORITO_CATALOG;
+
+#pragma pack()
+
+#endif
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