]>
Commit | Line | Data |
---|---|---|
30fdf114 LG |
1 | /** @file\r |
2 | \r | |
3 | Fat file system structure and definition.\r | |
4 | \r | |
40d841f6 LG |
5 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
6 | This program and the accompanying materials \r | |
30fdf114 LG |
7 | are licensed and made available under the terms and conditions of the BSD License \r |
8 | which accompanies this distribution. The full text of the license may be found at \r | |
9 | http://opensource.org/licenses/bsd-license.php \r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
13 | \r | |
14 | --*/\r | |
15 | \r | |
16 | #ifndef _FAT_BPB_H_\r | |
17 | #define _FAT_BPB_H_\r | |
18 | \r | |
19 | #include "CommonLib.h"\r | |
20 | \r | |
21 | #pragma pack(1)\r | |
22 | \r | |
23 | typedef struct {\r | |
24 | //\r | |
25 | // Fat common field\r | |
26 | //\r | |
27 | UINT8 BS_jmpBoot[3];\r | |
28 | CHAR8 BS_OEMName[8];\r | |
29 | UINT16 BPB_BytsPerSec;\r | |
30 | UINT8 BPB_SecPerClus;\r | |
31 | UINT16 BPB_RsvdSecCnt;\r | |
32 | UINT8 BPB_NumFATs;\r | |
33 | UINT16 BPB_RootEntCnt;\r | |
34 | UINT16 BPB_TotSec16;\r | |
35 | UINT8 BPB_Media;\r | |
36 | UINT16 BPB_FATSz16;\r | |
37 | UINT16 BPB_SecPerTrk;\r | |
38 | UINT16 BPB_NumHeads;\r | |
39 | UINT32 BPB_HiddSec;\r | |
40 | UINT32 BPB_TotSec32;\r | |
41 | \r | |
42 | //\r | |
43 | // Fat12/16 specific field\r | |
44 | //\r | |
45 | UINT8 BS_DrvNum;\r | |
46 | UINT8 BS_Reserved1;\r | |
47 | UINT8 BS_BootSig;\r | |
48 | UINT32 BS_VolID;\r | |
49 | CHAR8 BS_VolLab[11];\r | |
50 | CHAR8 BS_FilSysType[8];\r | |
51 | \r | |
52 | //\r | |
53 | // Boot Code and Data\r | |
54 | //\r | |
55 | UINT8 Reserved[448];\r | |
56 | \r | |
57 | //\r | |
58 | // Fat common signature - 0xAA55\r | |
59 | //\r | |
60 | UINT16 Signature;\r | |
61 | } FAT12_16_BPB_STRUCT;\r | |
62 | \r | |
63 | typedef struct {\r | |
64 | //\r | |
65 | // Fat common field\r | |
66 | //\r | |
67 | UINT8 BS_jmpBoot[3];\r | |
68 | CHAR8 BS_OEMName[8];\r | |
69 | UINT16 BPB_BytsPerSec;\r | |
70 | UINT8 BPB_SecPerClus;\r | |
71 | UINT16 BPB_RsvdSecCnt;\r | |
72 | UINT8 BPB_NumFATs;\r | |
73 | UINT16 BPB_RootEntCnt;\r | |
74 | UINT16 BPB_TotSec16;\r | |
75 | UINT8 BPB_Media;\r | |
76 | UINT16 BPB_FATSz16;\r | |
77 | UINT16 BPB_SecPerTrk;\r | |
78 | UINT16 BPB_NumHeads;\r | |
79 | UINT32 BPB_HiddSec;\r | |
80 | UINT32 BPB_TotSec32;\r | |
81 | \r | |
82 | //\r | |
83 | // Fat32 specific field\r | |
84 | //\r | |
85 | UINT32 BPB_FATSz32;\r | |
86 | UINT16 BPB_ExtFlags;\r | |
87 | UINT16 BPB_FSVer;\r | |
88 | UINT32 BPB_RootClus;\r | |
89 | UINT16 BPB_FSInfo;\r | |
90 | UINT16 BPB_BkBootSec;\r | |
91 | UINT8 BPB_Reserved[12];\r | |
92 | UINT8 BS_DrvNum;\r | |
93 | UINT8 BS_Reserved1;\r | |
94 | UINT8 BS_BootSig;\r | |
95 | UINT32 BS_VolID;\r | |
96 | CHAR8 BS_VolLab[11];\r | |
97 | CHAR8 BS_FilSysType[8];\r | |
98 | \r | |
99 | //\r | |
100 | // Boot Code and Data\r | |
101 | //\r | |
102 | UINT8 Reserved[420];\r | |
103 | \r | |
104 | //\r | |
105 | // Fat common signature - 0xAA55\r | |
106 | //\r | |
107 | UINT16 Signature;\r | |
108 | } FAT32_BPB_STRUCT;\r | |
109 | \r | |
110 | typedef union {\r | |
111 | FAT12_16_BPB_STRUCT Fat12_16;\r | |
112 | FAT32_BPB_STRUCT Fat32;\r | |
113 | } FAT_BPB_STRUCT;\r | |
114 | \r | |
115 | typedef enum {\r | |
116 | FatTypeUnknown,\r | |
117 | FatTypeFat12,\r | |
118 | FatTypeFat16,\r | |
119 | FatTypeFat32,\r | |
120 | FatTypeMax\r | |
121 | } FAT_TYPE;\r | |
122 | \r | |
123 | typedef struct {\r | |
124 | CHAR8 DIR_Name[11];\r | |
125 | UINT8 DIR_Attr;\r | |
126 | UINT8 DIR_NTRes;\r | |
127 | UINT8 DIR_CrtTimeTenth;\r | |
128 | UINT16 DIR_CrtTime;\r | |
129 | UINT16 DIR_CrtDate;\r | |
130 | UINT16 DIR_LstAccDate;\r | |
131 | UINT16 DIR_FstClusHI;\r | |
132 | UINT16 DIR_WrtTime;\r | |
133 | UINT16 DIR_WrtDate;\r | |
134 | UINT16 DIR_FstClusLO;\r | |
135 | UINT32 DIR_FileSize;\r | |
136 | } FAT_DIRECTORY_ENTRY;\r | |
137 | \r | |
138 | #pragma pack()\r | |
139 | \r | |
140 | #define FAT_MAX_FAT12_CLUSTER 0xFF5\r | |
141 | #define FAT_MAX_FAT16_CLUSTER 0xFFF5\r | |
142 | \r | |
143 | #define FAT_BS_SIGNATURE 0xAA55\r | |
144 | #define FAT_BS_BOOTSIG 0x29\r | |
145 | #define FAT_BS_JMP1 0xEB\r | |
146 | #define FAT_BS_JMP2 0xE9\r | |
147 | #define FAT_FILSYSTYPE "FAT "\r | |
148 | #define FAT12_FILSYSTYPE "FAT12 "\r | |
149 | #define FAT16_FILSYSTYPE "FAT16 "\r | |
150 | #define FAT32_FILSYSTYPE "FAT32 "\r | |
151 | \r | |
152 | #endif\r |