Initial import.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
2006-04-21 22:54:32 +00:00
commit 878ddf1fc3
2651 changed files with 624620 additions and 0 deletions
--- a/EdkModulePkg/Universal/Disk/Partition/Dxe/ElTorito.h
+++ 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