FatPkg: Add FAT PEIM

Signed-off-by: jljusten Reviewed-by: mdkinney (based on FatPkg commit bead7f219277e063ed28589de8ddd01cf180c1a8) [jordan.l.justen@intel.com: Use script to relicense to 2-clause BSD] Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Acked-by: Mark Doran <mark.doran@intel.com> Acked-by: Laszlo Ersek <lersek@redhat.com>
2011-07-01 00:37:55 +00:00
parent 43ba790742
commit 2f4dfa84ac
9 changed files with 2757 additions and 0 deletions
--- a/FatPkg/FatPei/FatLiteFmt.h
+++ b/FatPkg/FatPei/FatLiteFmt.h
@@ -0,0 +1,144 @@
+/** @file
+  FAT format data structures
+
+Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+
+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.
+
+**/
+
+#ifndef _FAT_FMT_H_
+#define _FAT_FMT_H_
+
+//
+// Definitions
+//
+#define FAT_ATTR_READ_ONLY                0x01
+#define FAT_ATTR_HIDDEN                   0x02
+#define FAT_ATTR_SYSTEM                   0x04
+#define FAT_ATTR_VOLUME_ID                0x08
+#define FAT_ATTR_DIRECTORY                0x10
+#define FAT_ATTR_ARCHIVE                  0x20
+#define FAT_ATTR_LFN                      (FAT_ATTR_READ_ONLY | FAT_ATTR_HIDDEN | FAT_ATTR_SYSTEM | FAT_ATTR_VOLUME_ID)
+
+#define FAT_CLUSTER_SPECIAL               ((-1 &~0xF) | 0x7)
+#define FAT_CLUSTER_FREE                  0
+#define FAT_CLUSTER_RESERVED              (FAT_CLUSTER_SPECIAL)
+#define FAT_CLUSTER_BAD                   (FAT_CLUSTER_SPECIAL)
+#define FAT_CLUSTER_LAST                  (-1)
+
+#define DELETE_ENTRY_MARK                 0xE5
+#define EMPTY_ENTRY_MARK                  0x00
+
+#define FAT_CLUSTER_FUNCTIONAL(Cluster)   (((Cluster) == 0) || ((Cluster) >= FAT_CLUSTER_SPECIAL))
+#define FAT_CLUSTER_END_OF_CHAIN(Cluster) ((Cluster) > (FAT_CLUSTER_SPECIAL))
+
+//
+// Directory Entry
+//
+#pragma pack(1)
+
+typedef struct {
+  UINT16  Day : 5;
+  UINT16  Month : 4;
+  UINT16  Year : 7;                 // From 1980
+} FAT_DATE;
+
+typedef struct {
+  UINT16  DoubleSecond : 5;
+  UINT16  Minute : 6;
+  UINT16  Hour : 5;
+} FAT_TIME;
+
+typedef struct {
+  FAT_TIME  Time;
+  FAT_DATE  Date;
+} FAT_DATE_TIME;
+
+typedef struct {
+  CHAR8         FileName[11];       // 8.3 filename
+  UINT8         Attributes;
+  UINT8         CaseFlag;
+  UINT8         CreateMillisecond;  // (creation milliseconds - ignored)
+  FAT_DATE_TIME FileCreateTime;
+  FAT_DATE      FileLastAccess;
+  UINT16        FileClusterHigh;    // >= FAT32
+  FAT_DATE_TIME FileModificationTime;
+  UINT16        FileCluster;
+  UINT32        FileSize;
+} FAT_DIRECTORY_ENTRY;
+
+#pragma pack()
+//
+// Boot Sector
+//
+#pragma pack(1)
+
+typedef struct {
+
+  UINT8   Ia32Jump[3];
+  CHAR8   OemId[8];
+
+  UINT16  SectorSize;
+  UINT8   SectorsPerCluster;
+  UINT16  ReservedSectors;
+  UINT8   NoFats;
+  UINT16  RootEntries;          // < FAT32, root dir is fixed size
+  UINT16  Sectors;
+  UINT8   Media;                // (ignored)
+  UINT16  SectorsPerFat;        // < FAT32
+  UINT16  SectorsPerTrack;      // (ignored)
+  UINT16  Heads;                // (ignored)
+  UINT32  HiddenSectors;        // (ignored)
+  UINT32  LargeSectors;         // => FAT32
+  UINT8   PhysicalDriveNumber;  // (ignored)
+  UINT8   CurrentHead;          // holds boot_sector_dirty bit
+  UINT8   Signature;            // (ignored)
+  CHAR8   Id[4];
+  CHAR8   FatLabel[11];
+  CHAR8   SystemId[8];
+
+} PEI_FAT_BOOT_SECTOR;
+
+typedef struct {
+
+  UINT8   Ia32Jump[3];
+  CHAR8   OemId[8];
+
+  UINT16  SectorSize;
+  UINT8   SectorsPerCluster;
+  UINT16  ReservedSectors;
+  UINT8   NoFats;
+  UINT16  RootEntries;          // < FAT32, root dir is fixed size
+  UINT16  Sectors;
+  UINT8   Media;                // (ignored)
+  UINT16  SectorsPerFat;        // < FAT32
+  UINT16  SectorsPerTrack;      // (ignored)
+  UINT16  Heads;                // (ignored)
+  UINT32  HiddenSectors;        // (ignored)
+  UINT32  LargeSectors;         // Used if Sectors==0
+  UINT32  LargeSectorsPerFat;   // FAT32
+  UINT16  ExtendedFlags;        // FAT32 (ignored)
+  UINT16  FsVersion;            // FAT32 (ignored)
+  UINT32  RootDirFirstCluster;  // FAT32
+  UINT16  FsInfoSector;         // FAT32
+  UINT16  BackupBootSector;     // FAT32
+  UINT8   Reserved[12];         // FAT32 (ignored)
+  UINT8   PhysicalDriveNumber;  // (ignored)
+  UINT8   CurrentHead;          // holds boot_sector_dirty bit
+  UINT8   Signature;            // (ignored)
+  CHAR8   Id[4];
+  CHAR8   FatLabel[11];
+  CHAR8   SystemId[8];
+
+} PEI_FAT_BOOT_SECTOR_EX;
+
+#pragma pack()
+
+#endif