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1 | /*----------------------------------------------------------------------------/\r | |
2 | / FatFs - Generic FAT Filesystem Module R0.13b /\r | |
3 | /-----------------------------------------------------------------------------/\r | |
4 | /\r | |
5 | / Copyright (C) 2018, ChaN, all right reserved.\r | |
6 | /\r | |
7 | / FatFs module is an open source software. Redistribution and use of FatFs in\r | |
8 | / source and binary forms, with or without modification, are permitted provided\r | |
9 | / that the following condition is met:\r | |
10 | /\r | |
11 | / 1. Redistributions of source code must retain the above copyright notice,\r | |
12 | / this condition and the following disclaimer.\r | |
13 | /\r | |
14 | / This software is provided by the copyright holder and contributors "AS IS"\r | |
15 | / and any warranties related to this software are DISCLAIMED.\r | |
16 | / The copyright owner or contributors be NOT LIABLE for any damages caused\r | |
17 | / by use of this software.\r | |
18 | /\r | |
19 | /----------------------------------------------------------------------------*/\r | |
20 | \r | |
21 | \r | |
22 | #include "ff.h" /* Declarations of FatFs API */\r | |
23 | #include "diskio.h" /* Declarations of device I/O functions */\r | |
24 | \r | |
25 | \r | |
26 | /*--------------------------------------------------------------------------\r | |
27 | \r | |
28 | Module Private Definitions\r | |
29 | \r | |
30 | ---------------------------------------------------------------------------*/\r | |
31 | \r | |
32 | #if FF_DEFINED != 63463 /* Revision ID */\r | |
33 | #error Wrong include file (ff.h).\r | |
34 | #endif\r | |
35 | \r | |
36 | \r | |
37 | /* Character code support macros */\r | |
38 | #define IsUpper(c) ((c) >= 'A' && (c) <= 'Z')\r | |
39 | #define IsLower(c) ((c) >= 'a' && (c) <= 'z')\r | |
40 | #define IsDigit(c) ((c) >= '0' && (c) <= '9')\r | |
41 | #define IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF)\r | |
42 | #define IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF)\r | |
43 | #define IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF)\r | |
44 | \r | |
45 | \r | |
46 | /* Additional file attribute bits for internal use */\r | |
47 | #define AM_VOL 0x08 /* Volume label */\r | |
48 | #define AM_LFN 0x0F /* LFN entry */\r | |
49 | #define AM_MASK 0x3F /* Mask of defined bits */\r | |
50 | \r | |
51 | \r | |
52 | /* Additional file access control and file status flags for internal use */\r | |
53 | #define FA_SEEKEND 0x20 /* Seek to end of the file on file open */\r | |
54 | #define FA_MODIFIED 0x40 /* File has been modified */\r | |
55 | #define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */\r | |
56 | \r | |
57 | \r | |
58 | /* Name status flags in fn[11] */\r | |
59 | #define NSFLAG 11 /* Index of the name status byte */\r | |
60 | #define NS_LOSS 0x01 /* Out of 8.3 format */\r | |
61 | #define NS_LFN 0x02 /* Force to create LFN entry */\r | |
62 | #define NS_LAST 0x04 /* Last segment */\r | |
63 | #define NS_BODY 0x08 /* Lower case flag (body) */\r | |
64 | #define NS_EXT 0x10 /* Lower case flag (ext) */\r | |
65 | #define NS_DOT 0x20 /* Dot entry */\r | |
66 | #define NS_NOLFN 0x40 /* Do not find LFN */\r | |
67 | #define NS_NONAME 0x80 /* Not followed */\r | |
68 | \r | |
69 | \r | |
70 | /* Limits and boundaries */\r | |
71 | #define MAX_DIR 0x200000 /* Max size of FAT directory */\r | |
72 | #define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */\r | |
73 | #define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */\r | |
74 | #define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */\r | |
75 | #define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */\r | |
76 | #define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */\r | |
77 | \r | |
78 | \r | |
79 | /* FatFs refers the FAT structure as simple byte array instead of structure member\r | |
80 | / because the C structure is not binary compatible between different platforms */\r | |
81 | \r | |
82 | #define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */\r | |
83 | #define BS_OEMName 3 /* OEM name (8-byte) */\r | |
84 | #define BPB_BytsPerSec 11 /* Sector size [byte] (WORD) */\r | |
85 | #define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */\r | |
86 | #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */\r | |
87 | #define BPB_NumFATs 16 /* Number of FATs (BYTE) */\r | |
88 | #define BPB_RootEntCnt 17 /* Size of root directory area for FAT [entry] (WORD) */\r | |
89 | #define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */\r | |
90 | #define BPB_Media 21 /* Media descriptor byte (BYTE) */\r | |
91 | #define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */\r | |
92 | #define BPB_SecPerTrk 24 /* Number of sectors per track for int13h [sector] (WORD) */\r | |
93 | #define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */\r | |
94 | #define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */\r | |
95 | #define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */\r | |
96 | #define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */\r | |
97 | #define BS_NTres 37 /* WindowsNT error flag (BYTE) */\r | |
98 | #define BS_BootSig 38 /* Extended boot signature (BYTE) */\r | |
99 | #define BS_VolID 39 /* Volume serial number (DWORD) */\r | |
100 | #define BS_VolLab 43 /* Volume label string (8-byte) */\r | |
101 | #define BS_FilSysType 54 /* Filesystem type string (8-byte) */\r | |
102 | #define BS_BootCode 62 /* Boot code (448-byte) */\r | |
103 | #define BS_55AA 510 /* Signature word (WORD) */\r | |
104 | \r | |
105 | #define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */\r | |
106 | #define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */\r | |
107 | #define BPB_FSVer32 42 /* FAT32: Filesystem version (WORD) */\r | |
108 | #define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */\r | |
109 | #define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */\r | |
110 | #define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */\r | |
111 | #define BS_DrvNum32 64 /* FAT32: Physical drive number for int13h (BYTE) */\r | |
112 | #define BS_NTres32 65 /* FAT32: Error flag (BYTE) */\r | |
113 | #define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */\r | |
114 | #define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */\r | |
115 | #define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */\r | |
116 | #define BS_FilSysType32 82 /* FAT32: Filesystem type string (8-byte) */\r | |
117 | #define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */\r | |
118 | \r | |
119 | #define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */\r | |
120 | #define BPB_VolOfsEx 64 /* exFAT: Volume offset from top of the drive [sector] (QWORD) */\r | |
121 | #define BPB_TotSecEx 72 /* exFAT: Volume size [sector] (QWORD) */\r | |
122 | #define BPB_FatOfsEx 80 /* exFAT: FAT offset from top of the volume [sector] (DWORD) */\r | |
123 | #define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */\r | |
124 | #define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */\r | |
125 | #define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */\r | |
126 | #define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */\r | |
127 | #define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */\r | |
128 | #define BPB_FSVerEx 104 /* exFAT: Filesystem version (WORD) */\r | |
129 | #define BPB_VolFlagEx 106 /* exFAT: Volume flags (WORD) */\r | |
130 | #define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */\r | |
131 | #define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */\r | |
132 | #define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */\r | |
133 | #define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */\r | |
134 | #define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */\r | |
135 | #define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */\r | |
136 | #define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */\r | |
137 | \r | |
138 | #define DIR_Name 0 /* Short file name (11-byte) */\r | |
139 | #define DIR_Attr 11 /* Attribute (BYTE) */\r | |
140 | #define DIR_NTres 12 /* Lower case flag (BYTE) */\r | |
141 | #define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */\r | |
142 | #define DIR_CrtTime 14 /* Created time (DWORD) */\r | |
143 | #define DIR_LstAccDate 18 /* Last accessed date (WORD) */\r | |
144 | #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */\r | |
145 | #define DIR_ModTime 22 /* Modified time (DWORD) */\r | |
146 | #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */\r | |
147 | #define DIR_FileSize 28 /* File size (DWORD) */\r | |
148 | #define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */\r | |
149 | #define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */\r | |
150 | #define LDIR_Type 12 /* LFN: Entry type (BYTE) */\r | |
151 | #define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */\r | |
152 | #define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */\r | |
153 | #define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */\r | |
154 | #define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */\r | |
155 | #define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */\r | |
156 | #define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */\r | |
157 | #define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */\r | |
158 | #define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */\r | |
159 | #define XDIR_Attr 4 /* exFAT: File attribute (WORD) */\r | |
160 | #define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */\r | |
161 | #define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */\r | |
162 | #define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */\r | |
163 | #define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */\r | |
164 | #define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */\r | |
165 | #define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */\r | |
166 | #define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */\r | |
167 | #define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */\r | |
168 | #define XDIR_GenFlags 33 /* exFAT: General secondary flags (BYTE) */\r | |
169 | #define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */\r | |
170 | #define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */\r | |
171 | #define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */\r | |
172 | #define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */\r | |
173 | #define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */\r | |
174 | \r | |
175 | #define SZDIRE 32 /* Size of a directory entry */\r | |
176 | #define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */\r | |
177 | #define RDDEM 0x05 /* Replacement of the character collides with DDEM */\r | |
178 | #define LLEF 0x40 /* Last long entry flag in LDIR_Ord */\r | |
179 | \r | |
180 | #define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */\r | |
181 | #define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */\r | |
182 | #define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */\r | |
183 | #define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */\r | |
184 | \r | |
185 | #define MBR_Table 446 /* MBR: Offset of partition table in the MBR */\r | |
186 | #define SZ_PTE 16 /* MBR: Size of a partition table entry */\r | |
187 | #define PTE_Boot 0 /* MBR PTE: Boot indicator */\r | |
188 | #define PTE_StHead 1 /* MBR PTE: Start head */\r | |
189 | #define PTE_StSec 2 /* MBR PTE: Start sector */\r | |
190 | #define PTE_StCyl 3 /* MBR PTE: Start cylinder */\r | |
191 | #define PTE_System 4 /* MBR PTE: System ID */\r | |
192 | #define PTE_EdHead 5 /* MBR PTE: End head */\r | |
193 | #define PTE_EdSec 6 /* MBR PTE: End sector */\r | |
194 | #define PTE_EdCyl 7 /* MBR PTE: End cylinder */\r | |
195 | #define PTE_StLba 8 /* MBR PTE: Start in LBA */\r | |
196 | #define PTE_SizLba 12 /* MBR PTE: Size in LBA */\r | |
197 | \r | |
198 | \r | |
199 | /* Post process on fatal error in the file operations */\r | |
200 | #define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }\r | |
201 | \r | |
202 | \r | |
203 | /* Re-entrancy related */\r | |
204 | #if FF_FS_REENTRANT\r | |
205 | #if FF_USE_LFN == 1\r | |
206 | #error Static LFN work area cannot be used at thread-safe configuration\r | |
207 | #endif\r | |
208 | #define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }\r | |
209 | #else\r | |
210 | #define LEAVE_FF(fs, res) return res\r | |
211 | #endif\r | |
212 | \r | |
213 | \r | |
214 | /* Definitions of volume - physical location conversion */\r | |
215 | #if FF_MULTI_PARTITION\r | |
216 | #define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */\r | |
217 | #define LD2PT(vol) VolToPart[vol].pt /* Get partition index */\r | |
218 | #else\r | |
219 | #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */\r | |
220 | #define LD2PT(vol) 0 /* Find first valid partition or in SFD */\r | |
221 | #endif\r | |
222 | \r | |
223 | \r | |
224 | /* Definitions of sector size */\r | |
225 | #if (FF_MAX_SS < FF_MIN_SS) || (FF_MAX_SS != 512 && FF_MAX_SS != 1024 && FF_MAX_SS != 2048 && FF_MAX_SS != 4096) || (FF_MIN_SS != 512 && FF_MIN_SS != 1024 && FF_MIN_SS != 2048 && FF_MIN_SS != 4096)\r | |
226 | #error Wrong sector size configuration\r | |
227 | #endif\r | |
228 | #if FF_MAX_SS == FF_MIN_SS\r | |
229 | #define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */\r | |
230 | #else\r | |
231 | #define SS(fs) ((fs)->ssize) /* Variable sector size */\r | |
232 | #endif\r | |
233 | \r | |
234 | \r | |
235 | /* Timestamp */\r | |
236 | #if FF_FS_NORTC == 1\r | |
237 | #if FF_NORTC_YEAR < 1980 || FF_NORTC_YEAR > 2107 || FF_NORTC_MON < 1 || FF_NORTC_MON > 12 || FF_NORTC_MDAY < 1 || FF_NORTC_MDAY > 31\r | |
238 | #error Invalid FF_FS_NORTC settings\r | |
239 | #endif\r | |
240 | #define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16)\r | |
241 | #else\r | |
242 | #define GET_FATTIME() get_fattime()\r | |
243 | #endif\r | |
244 | \r | |
245 | \r | |
246 | /* File lock controls */\r | |
247 | #if FF_FS_LOCK != 0\r | |
248 | #if FF_FS_READONLY\r | |
249 | #error FF_FS_LOCK must be 0 at read-only configuration\r | |
250 | #endif\r | |
251 | typedef struct {\r | |
252 | FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */\r | |
253 | DWORD clu; /* Object ID 2, containing directory (0:root) */\r | |
254 | DWORD ofs; /* Object ID 3, offset in the directory */\r | |
255 | WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */\r | |
256 | } FILESEM;\r | |
257 | #endif\r | |
258 | \r | |
259 | \r | |
260 | /* SBCS up-case tables (\x80-\xFF) */\r | |
261 | #define TBL_CT437 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
262 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
263 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
264 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
265 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
266 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
267 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
268 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
269 | #define TBL_CT720 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
270 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
271 | 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
272 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
273 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
274 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
275 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
276 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
277 | #define TBL_CT737 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
278 | 0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \\r | |
279 | 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \\r | |
280 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
281 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
282 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
283 | 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
284 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
285 | #define TBL_CT771 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
286 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
287 | 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
288 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
289 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
290 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \\r | |
291 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
292 | 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}\r | |
293 | #define TBL_CT775 {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \\r | |
294 | 0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \\r | |
295 | 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
296 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
297 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
298 | 0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
299 | 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \\r | |
300 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
301 | #define TBL_CT850 {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \\r | |
302 | 0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \\r | |
303 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
304 | 0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
305 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
306 | 0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \\r | |
307 | 0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \\r | |
308 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
309 | #define TBL_CT852 {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \\r | |
310 | 0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \\r | |
311 | 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \\r | |
312 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \\r | |
313 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
314 | 0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
315 | 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \\r | |
316 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}\r | |
317 | #define TBL_CT855 {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \\r | |
318 | 0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \\r | |
319 | 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \\r | |
320 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \\r | |
321 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
322 | 0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \\r | |
323 | 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \\r | |
324 | 0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}\r | |
325 | #define TBL_CT857 {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \\r | |
326 | 0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \\r | |
327 | 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
328 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
329 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
330 | 0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
331 | 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \\r | |
332 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
333 | #define TBL_CT860 {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \\r | |
334 | 0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
335 | 0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
336 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
337 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
338 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
339 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
340 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
341 | #define TBL_CT861 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \\r | |
342 | 0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \\r | |
343 | 0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
344 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
345 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
346 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
347 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
348 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
349 | #define TBL_CT862 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
350 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
351 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
352 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
353 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
354 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
355 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
356 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
357 | #define TBL_CT863 {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \\r | |
358 | 0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \\r | |
359 | 0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
360 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
361 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
362 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
363 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
364 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
365 | #define TBL_CT864 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
366 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
367 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
368 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
369 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
370 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
371 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
372 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
373 | #define TBL_CT865 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
374 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
375 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
376 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
377 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
378 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
379 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
380 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
381 | #define TBL_CT866 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
382 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
383 | 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
384 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
385 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
386 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
387 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
388 | 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
389 | #define TBL_CT869 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
390 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \\r | |
391 | 0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
392 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
393 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
394 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \\r | |
395 | 0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \\r | |
396 | 0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}\r | |
397 | \r | |
398 | \r | |
399 | /* DBCS code range |----- 1st byte -----| |----------- 2nd byte -----------| */\r | |
400 | #define TBL_DC932 {0x81, 0x9F, 0xE0, 0xFC, 0x40, 0x7E, 0x80, 0xFC, 0x00, 0x00}\r | |
401 | #define TBL_DC936 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0x80, 0xFE, 0x00, 0x00}\r | |
402 | #define TBL_DC949 {0x81, 0xFE, 0x00, 0x00, 0x41, 0x5A, 0x61, 0x7A, 0x81, 0xFE}\r | |
403 | #define TBL_DC950 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0xA1, 0xFE, 0x00, 0x00}\r | |
404 | \r | |
405 | \r | |
406 | /* Macros for table definitions */\r | |
407 | #define MERGE_2STR(a, b) a ## b\r | |
408 | #define MKCVTBL(hd, cp) MERGE_2STR(hd, cp)\r | |
409 | \r | |
410 | \r | |
411 | \r | |
412 | \r | |
413 | /*--------------------------------------------------------------------------\r | |
414 | \r | |
415 | Module Private Work Area\r | |
416 | \r | |
417 | ---------------------------------------------------------------------------*/\r | |
418 | /* Remark: Variables defined here without initial value shall be guaranteed\r | |
419 | / zero/null at start-up. If not, the linker option or start-up routine is\r | |
420 | / not compliance with C standard. */\r | |
421 | \r | |
422 | /*--------------------------------*/\r | |
423 | /* File/Volume controls */\r | |
424 | /*--------------------------------*/\r | |
425 | \r | |
426 | #if FF_VOLUMES < 1 || FF_VOLUMES > 10\r | |
427 | #error Wrong FF_VOLUMES setting\r | |
428 | #endif\r | |
429 | static FATFS* FatFs[FF_VOLUMES]; /* Pointer to the filesystem objects (logical drives) */\r | |
430 | static WORD Fsid; /* Filesystem mount ID */\r | |
431 | \r | |
432 | #if FF_FS_RPATH != 0\r | |
433 | static BYTE CurrVol; /* Current drive */\r | |
434 | #endif\r | |
435 | \r | |
436 | #if FF_FS_LOCK != 0\r | |
437 | static FILESEM Files[FF_FS_LOCK]; /* Open object lock semaphores */\r | |
438 | #endif\r | |
439 | \r | |
440 | #if FF_STR_VOLUME_ID\r | |
441 | #ifdef FF_VOLUME_STRS\r | |
442 | static const char* const VolumeStr[FF_VOLUMES] = {FF_VOLUME_STRS}; /* Pre-defined volume ID */\r | |
443 | #endif\r | |
444 | #endif\r | |
445 | \r | |
446 | \r | |
447 | /*--------------------------------*/\r | |
448 | /* LFN/Directory working buffer */\r | |
449 | /*--------------------------------*/\r | |
450 | \r | |
451 | #if FF_USE_LFN == 0 /* Non-LFN configuration */\r | |
452 | #if FF_FS_EXFAT\r | |
453 | #error LFN must be enabled when enable exFAT\r | |
454 | #endif\r | |
455 | #define DEF_NAMBUF\r | |
456 | #define INIT_NAMBUF(fs)\r | |
457 | #define FREE_NAMBUF()\r | |
458 | #define LEAVE_MKFS(res) return res\r | |
459 | \r | |
460 | #else /* LFN configurations */\r | |
461 | #if FF_MAX_LFN < 12 || FF_MAX_LFN > 255\r | |
462 | #error Wrong setting of FF_MAX_LFN\r | |
463 | #endif\r | |
464 | #if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12\r | |
465 | #error Wrong setting of FF_LFN_BUF or FF_SFN_BUF\r | |
466 | #endif\r | |
467 | #if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3\r | |
468 | #error Wrong setting of FF_LFN_UNICODE\r | |
469 | #endif\r | |
470 | static const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* FAT: Offset of LFN characters in the directory entry */\r | |
471 | #define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE) /* exFAT: Size of directory entry block scratchpad buffer needed for the name length */\r | |
472 | \r | |
473 | #if FF_USE_LFN == 1 /* LFN enabled with static working buffer */\r | |
474 | #if FF_FS_EXFAT\r | |
475 | static BYTE DirBuf[MAXDIRB(FF_MAX_LFN)]; /* Directory entry block scratchpad buffer */\r | |
476 | #endif\r | |
477 | static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */\r | |
478 | #define DEF_NAMBUF\r | |
479 | #define INIT_NAMBUF(fs)\r | |
480 | #define FREE_NAMBUF()\r | |
481 | #define LEAVE_MKFS(res) return res\r | |
482 | \r | |
483 | #elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */\r | |
484 | #if FF_FS_EXFAT\r | |
485 | #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; BYTE dbuf[MAXDIRB(FF_MAX_LFN)]; /* LFN working buffer and directory entry block scratchpad buffer */\r | |
486 | #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; }\r | |
487 | #define FREE_NAMBUF()\r | |
488 | #else\r | |
489 | #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */\r | |
490 | #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; }\r | |
491 | #define FREE_NAMBUF()\r | |
492 | #endif\r | |
493 | #define LEAVE_MKFS(res) return res\r | |
494 | \r | |
495 | #elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */\r | |
496 | #if FF_FS_EXFAT\r | |
497 | #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */\r | |
498 | #define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2 + MAXDIRB(FF_MAX_LFN)); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+FF_MAX_LFN+1); }\r | |
499 | #define FREE_NAMBUF() ff_memfree(lfn)\r | |
500 | #else\r | |
501 | #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer */\r | |
502 | #define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; }\r | |
503 | #define FREE_NAMBUF() ff_memfree(lfn)\r | |
504 | #endif\r | |
505 | #define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; }\r | |
506 | #define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */\r | |
507 | \r | |
508 | #else\r | |
509 | #error Wrong setting of FF_USE_LFN\r | |
510 | \r | |
511 | #endif /* FF_USE_LFN == 1 */\r | |
512 | #endif /* FF_USE_LFN == 0 */\r | |
513 | \r | |
514 | \r | |
515 | \r | |
516 | /*--------------------------------*/\r | |
517 | /* Code conversion tables */\r | |
518 | /*--------------------------------*/\r | |
519 | \r | |
520 | #if FF_CODE_PAGE == 0 /* Run-time code page configuration */\r | |
521 | #define CODEPAGE CodePage\r | |
522 | static WORD CodePage; /* Current code page */\r | |
523 | static const BYTE *ExCvt, *DbcTbl; /* Pointer to current SBCS up-case table and DBCS code range table below */\r | |
524 | static const BYTE Ct437[] = TBL_CT437;\r | |
525 | static const BYTE Ct720[] = TBL_CT720;\r | |
526 | static const BYTE Ct737[] = TBL_CT737;\r | |
527 | static const BYTE Ct771[] = TBL_CT771;\r | |
528 | static const BYTE Ct775[] = TBL_CT775;\r | |
529 | static const BYTE Ct850[] = TBL_CT850;\r | |
530 | static const BYTE Ct852[] = TBL_CT852;\r | |
531 | static const BYTE Ct855[] = TBL_CT855;\r | |
532 | static const BYTE Ct857[] = TBL_CT857;\r | |
533 | static const BYTE Ct860[] = TBL_CT860;\r | |
534 | static const BYTE Ct861[] = TBL_CT861;\r | |
535 | static const BYTE Ct862[] = TBL_CT862;\r | |
536 | static const BYTE Ct863[] = TBL_CT863;\r | |
537 | static const BYTE Ct864[] = TBL_CT864;\r | |
538 | static const BYTE Ct865[] = TBL_CT865;\r | |
539 | static const BYTE Ct866[] = TBL_CT866;\r | |
540 | static const BYTE Ct869[] = TBL_CT869;\r | |
541 | static const BYTE Dc932[] = TBL_DC932;\r | |
542 | static const BYTE Dc936[] = TBL_DC936;\r | |
543 | static const BYTE Dc949[] = TBL_DC949;\r | |
544 | static const BYTE Dc950[] = TBL_DC950;\r | |
545 | \r | |
546 | #elif FF_CODE_PAGE < 900 /* Static code page configuration (SBCS) */\r | |
547 | #define CODEPAGE FF_CODE_PAGE\r | |
548 | static const BYTE ExCvt[] = MKCVTBL(TBL_CT, FF_CODE_PAGE);\r | |
549 | \r | |
550 | #else /* Static code page configuration (DBCS) */\r | |
551 | #define CODEPAGE FF_CODE_PAGE\r | |
552 | static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE);\r | |
553 | \r | |
554 | #endif\r | |
555 | \r | |
556 | \r | |
557 | \r | |
558 | \r | |
559 | /*--------------------------------------------------------------------------\r | |
560 | \r | |
561 | Module Private Functions\r | |
562 | \r | |
563 | ---------------------------------------------------------------------------*/\r | |
564 | \r | |
565 | \r | |
566 | /*-----------------------------------------------------------------------*/\r | |
567 | /* Load/Store multi-byte word in the FAT structure */\r | |
568 | /*-----------------------------------------------------------------------*/\r | |
569 | \r | |
570 | static WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */\r | |
571 | {\r | |
572 | WORD rv;\r | |
573 | \r | |
574 | rv = ptr[1];\r | |
575 | rv = rv << 8 | ptr[0];\r | |
576 | return rv;\r | |
577 | }\r | |
578 | \r | |
579 | static DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */\r | |
580 | {\r | |
581 | DWORD rv;\r | |
582 | \r | |
583 | rv = ptr[3];\r | |
584 | rv = rv << 8 | ptr[2];\r | |
585 | rv = rv << 8 | ptr[1];\r | |
586 | rv = rv << 8 | ptr[0];\r | |
587 | return rv;\r | |
588 | }\r | |
589 | \r | |
590 | #if FF_FS_EXFAT\r | |
591 | static QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */\r | |
592 | {\r | |
593 | QWORD rv;\r | |
594 | \r | |
595 | rv = ptr[7];\r | |
596 | rv = rv << 8 | ptr[6];\r | |
597 | rv = rv << 8 | ptr[5];\r | |
598 | rv = rv << 8 | ptr[4];\r | |
599 | rv = rv << 8 | ptr[3];\r | |
600 | rv = rv << 8 | ptr[2];\r | |
601 | rv = rv << 8 | ptr[1];\r | |
602 | rv = rv << 8 | ptr[0];\r | |
603 | return rv;\r | |
604 | }\r | |
605 | #endif\r | |
606 | \r | |
607 | #if !FF_FS_READONLY\r | |
608 | static void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */\r | |
609 | {\r | |
610 | *ptr++ = (BYTE)val; val >>= 8;\r | |
611 | *ptr++ = (BYTE)val;\r | |
612 | }\r | |
613 | \r | |
614 | static void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */\r | |
615 | {\r | |
616 | *ptr++ = (BYTE)val; val >>= 8;\r | |
617 | *ptr++ = (BYTE)val; val >>= 8;\r | |
618 | *ptr++ = (BYTE)val; val >>= 8;\r | |
619 | *ptr++ = (BYTE)val;\r | |
620 | }\r | |
621 | \r | |
622 | #if FF_FS_EXFAT\r | |
623 | static void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */\r | |
624 | {\r | |
625 | *ptr++ = (BYTE)val; val >>= 8;\r | |
626 | *ptr++ = (BYTE)val; val >>= 8;\r | |
627 | *ptr++ = (BYTE)val; val >>= 8;\r | |
628 | *ptr++ = (BYTE)val; val >>= 8;\r | |
629 | *ptr++ = (BYTE)val; val >>= 8;\r | |
630 | *ptr++ = (BYTE)val; val >>= 8;\r | |
631 | *ptr++ = (BYTE)val; val >>= 8;\r | |
632 | *ptr++ = (BYTE)val;\r | |
633 | }\r | |
634 | #endif\r | |
635 | #endif /* !FF_FS_READONLY */\r | |
636 | \r | |
637 | \r | |
638 | \r | |
639 | /*-----------------------------------------------------------------------*/\r | |
640 | /* String functions */\r | |
641 | /*-----------------------------------------------------------------------*/\r | |
642 | \r | |
643 | /* Copy memory to memory */\r | |
644 | static void mem_cpy (void* dst, const void* src, UINT cnt)\r | |
645 | {\r | |
646 | BYTE *d = (BYTE*)dst;\r | |
647 | const BYTE *s = (const BYTE*)src;\r | |
648 | \r | |
649 | if (cnt != 0) {\r | |
650 | do {\r | |
651 | *d++ = *s++;\r | |
652 | } while (--cnt);\r | |
653 | }\r | |
654 | }\r | |
655 | \r | |
656 | \r | |
657 | /* Fill memory block */\r | |
658 | static void mem_set (void* dst, int val, UINT cnt)\r | |
659 | {\r | |
660 | BYTE *d = (BYTE*)dst;\r | |
661 | \r | |
662 | do {\r | |
663 | *d++ = (BYTE)val;\r | |
664 | } while (--cnt);\r | |
665 | }\r | |
666 | \r | |
667 | \r | |
668 | /* Compare memory block */\r | |
669 | static int mem_cmp (const void* dst, const void* src, UINT cnt) /* ZR:same, NZ:different */\r | |
670 | {\r | |
671 | const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;\r | |
672 | int r = 0;\r | |
673 | \r | |
674 | do {\r | |
675 | r = *d++ - *s++;\r | |
676 | } while (--cnt && r == 0);\r | |
677 | \r | |
678 | return r;\r | |
679 | }\r | |
680 | \r | |
681 | \r | |
682 | /* Check if chr is contained in the string */\r | |
683 | static int chk_chr (const char* str, int chr) /* NZ:contained, ZR:not contained */\r | |
684 | {\r | |
685 | while (*str && *str != chr) str++;\r | |
686 | return *str;\r | |
687 | }\r | |
688 | \r | |
689 | \r | |
690 | /* Test if the character is DBC 1st byte */\r | |
691 | static int dbc_1st (BYTE c)\r | |
692 | {\r | |
693 | #if FF_CODE_PAGE == 0 /* Variable code page */\r | |
694 | if (DbcTbl && c >= DbcTbl[0]) {\r | |
695 | if (c <= DbcTbl[1]) return 1; /* 1st byte range 1 */\r | |
696 | if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; /* 1st byte range 2 */\r | |
697 | }\r | |
698 | #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */\r | |
699 | if (c >= DbcTbl[0]) {\r | |
700 | if (c <= DbcTbl[1]) return 1;\r | |
701 | if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1;\r | |
702 | }\r | |
703 | #else /* SBCS fixed code page */\r | |
704 | if (c != 0) return 0; /* Always false */\r | |
705 | #endif\r | |
706 | return 0;\r | |
707 | }\r | |
708 | \r | |
709 | \r | |
710 | /* Test if the character is DBC 2nd byte */\r | |
711 | static int dbc_2nd (BYTE c)\r | |
712 | {\r | |
713 | #if FF_CODE_PAGE == 0 /* Variable code page */\r | |
714 | if (DbcTbl && c >= DbcTbl[4]) {\r | |
715 | if (c <= DbcTbl[5]) return 1; /* 2nd byte range 1 */\r | |
716 | if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; /* 2nd byte range 2 */\r | |
717 | if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; /* 2nd byte range 3 */\r | |
718 | }\r | |
719 | #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */\r | |
720 | if (c >= DbcTbl[4]) {\r | |
721 | if (c <= DbcTbl[5]) return 1;\r | |
722 | if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1;\r | |
723 | if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1;\r | |
724 | }\r | |
725 | #else /* SBCS fixed code page */\r | |
726 | if (c != 0) return 0; /* Always false */\r | |
727 | #endif\r | |
728 | return 0;\r | |
729 | }\r | |
730 | \r | |
731 | \r | |
732 | #if FF_USE_LFN\r | |
733 | \r | |
734 | /* Get a character from TCHAR string in defined API encodeing */\r | |
735 | static DWORD tchar2uni ( /* Returns character in UTF-16 encoding (>=0x10000 on double encoding unit, 0xFFFFFFFF on decode error) */\r | |
736 | const TCHAR** str /* Pointer to pointer to TCHAR string in configured encoding */\r | |
737 | )\r | |
738 | {\r | |
739 | DWORD uc;\r | |
740 | const TCHAR *p = *str;\r | |
741 | \r | |
742 | #if FF_LFN_UNICODE == 1 /* UTF-16 input */\r | |
743 | WCHAR wc;\r | |
744 | \r | |
745 | uc = *p++; /* Get a unit */\r | |
746 | if (IsSurrogate(uc)) { /* Surrogate? */\r | |
747 | wc = *p++; /* Get low surrogate */\r | |
748 | if (!IsSurrogateH(uc) || !IsSurrogateL(wc)) return 0xFFFFFFFF; /* Wrong surrogate? */\r | |
749 | uc = uc << 16 | wc;\r | |
750 | }\r | |
751 | \r | |
752 | #elif FF_LFN_UNICODE == 2 /* UTF-8 input */\r | |
753 | BYTE b;\r | |
754 | int nf;\r | |
755 | \r | |
756 | uc = (BYTE)*p++; /* Get a unit */\r | |
757 | if (uc & 0x80) { /* Multiple byte code? */\r | |
758 | if ((uc & 0xE0) == 0xC0) { /* 2-byte sequence? */\r | |
759 | uc &= 0x1F; nf = 1;\r | |
760 | } else {\r | |
761 | if ((uc & 0xF0) == 0xE0) { /* 3-byte sequence? */\r | |
762 | uc &= 0x0F; nf = 2;\r | |
763 | } else {\r | |
764 | if ((uc & 0xF8) == 0xF0) { /* 4-byte sequence? */\r | |
765 | uc &= 0x07; nf = 3;\r | |
766 | } else { /* Wrong sequence */\r | |
767 | return 0xFFFFFFFF;\r | |
768 | }\r | |
769 | }\r | |
770 | }\r | |
771 | do { /* Get trailing bytes */\r | |
772 | b = (BYTE)*p++;\r | |
773 | if ((b & 0xC0) != 0x80) return 0xFFFFFFFF; /* Wrong sequence? */\r | |
774 | uc = uc << 6 | (b & 0x3F);\r | |
775 | } while (--nf != 0);\r | |
776 | if (uc < 0x80 || IsSurrogate(uc) || uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */\r | |
777 | if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */\r | |
778 | }\r | |
779 | \r | |
780 | #elif FF_LFN_UNICODE == 3 /* UTF-32 input */\r | |
781 | uc = (TCHAR)*p++; /* Get a unit */\r | |
782 | if (uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */\r | |
783 | if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */\r | |
784 | \r | |
785 | #else /* ANSI/OEM input */\r | |
786 | BYTE b;\r | |
787 | WCHAR wc;\r | |
788 | \r | |
789 | wc = (BYTE)*p++; /* Get a byte */\r | |
790 | if (dbc_1st((BYTE)wc)) { /* Is it a DBC 1st byte? */\r | |
791 | b = (BYTE)*p++; /* Get 2nd byte */\r | |
792 | if (!dbc_2nd(b)) return 0xFFFFFFFF; /* Invalid code? */\r | |
793 | wc = (wc << 8) + b; /* Make a DBC */\r | |
794 | }\r | |
795 | if (wc != 0) {\r | |
796 | wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM ==> Unicode */\r | |
797 | if (wc == 0) return 0xFFFFFFFF; /* Invalid code? */\r | |
798 | }\r | |
799 | uc = wc;\r | |
800 | \r | |
801 | #endif\r | |
802 | *str = p; /* Next read pointer */\r | |
803 | return uc;\r | |
804 | }\r | |
805 | \r | |
806 | \r | |
807 | /* Output a TCHAR string in defined API encoding */\r | |
808 | static BYTE put_utf ( /* Returns number of encoding units written (0:buffer overflow or wrong encoding) */\r | |
809 | DWORD chr, /* UTF-16 encoded character (Double encoding unit char if >=0x10000) */\r | |
810 | TCHAR* buf, /* Output buffer */\r | |
811 | UINT szb /* Size of the buffer */\r | |
812 | )\r | |
813 | {\r | |
814 | #if FF_LFN_UNICODE == 1 /* UTF-16 output */\r | |
815 | WCHAR hs, wc;\r | |
816 | \r | |
817 | hs = (WCHAR)(chr >> 16);\r | |
818 | wc = (WCHAR)chr;\r | |
819 | if (hs == 0) { /* Single encoding unit? */\r | |
820 | if (szb < 1 || IsSurrogate(wc)) return 0; /* Buffer overflow or wrong code? */\r | |
821 | *buf = wc;\r | |
822 | return 1;\r | |
823 | }\r | |
824 | if (szb < 2 || !IsSurrogateH(hs) || !IsSurrogateL(wc)) return 0; /* Buffer overflow or wrong surrogate? */\r | |
825 | *buf++ = hs;\r | |
826 | *buf++ = wc;\r | |
827 | return 2;\r | |
828 | \r | |
829 | #elif FF_LFN_UNICODE == 2 /* UTF-8 output */\r | |
830 | DWORD hc;\r | |
831 | \r | |
832 | if (chr < 0x80) { /* Single byte code? */\r | |
833 | if (szb < 1) return 0; /* Buffer overflow? */\r | |
834 | *buf = (TCHAR)chr;\r | |
835 | return 1;\r | |
836 | }\r | |
837 | if (chr < 0x800) { /* 2-byte sequence? */\r | |
838 | if (szb < 2) return 0; /* Buffer overflow? */\r | |
839 | *buf++ = (TCHAR)(0xC0 | (chr >> 6 & 0x1F));\r | |
840 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
841 | return 2;\r | |
842 | }\r | |
843 | if (chr < 0x10000) { /* 3-byte sequence? */\r | |
844 | if (szb < 3 || IsSurrogate(chr)) return 0; /* Buffer overflow or wrong code? */\r | |
845 | *buf++ = (TCHAR)(0xE0 | (chr >> 12 & 0x0F));\r | |
846 | *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));\r | |
847 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
848 | return 3;\r | |
849 | }\r | |
850 | /* 4-byte sequence */\r | |
851 | if (szb < 4) return 0; /* Buffer overflow? */\r | |
852 | hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */\r | |
853 | chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */\r | |
854 | if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */\r | |
855 | chr = (hc | chr) + 0x10000;\r | |
856 | *buf++ = (TCHAR)(0xF0 | (chr >> 18 & 0x07));\r | |
857 | *buf++ = (TCHAR)(0x80 | (chr >> 12 & 0x3F));\r | |
858 | *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));\r | |
859 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
860 | return 4;\r | |
861 | \r | |
862 | #elif FF_LFN_UNICODE == 3 /* UTF-32 output */\r | |
863 | DWORD hc;\r | |
864 | \r | |
865 | if (szb < 1) return 0; /* Buffer overflow? */\r | |
866 | if (chr >= 0x10000) { /* Out of BMP? */\r | |
867 | hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */\r | |
868 | chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */\r | |
869 | if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */\r | |
870 | chr = (hc | chr) + 0x10000;\r | |
871 | }\r | |
872 | *buf++ = (TCHAR)chr;\r | |
873 | return 1;\r | |
874 | \r | |
875 | #else /* ANSI/OEM output */\r | |
876 | WCHAR wc;\r | |
877 | \r | |
878 | wc = ff_uni2oem(chr, CODEPAGE);\r | |
879 | if (wc >= 0x100) { /* Is this a DBC? */\r | |
880 | if (szb < 2) return 0;\r | |
881 | *buf++ = (char)(wc >> 8); /* Store DBC 1st byte */\r | |
882 | *buf++ = (TCHAR)wc; /* Store DBC 2nd byte */\r | |
883 | return 2;\r | |
884 | }\r | |
885 | if (wc == 0 || szb < 1) return 0; /* Invalid char or buffer overflow? */\r | |
886 | *buf++ = (TCHAR)wc; /* Store the character */\r | |
887 | return 1;\r | |
888 | #endif\r | |
889 | }\r | |
890 | #endif /* FF_USE_LFN */\r | |
891 | \r | |
892 | \r | |
893 | #if FF_FS_REENTRANT\r | |
894 | /*-----------------------------------------------------------------------*/\r | |
895 | /* Request/Release grant to access the volume */\r | |
896 | /*-----------------------------------------------------------------------*/\r | |
897 | static int lock_fs ( /* 1:Ok, 0:timeout */\r | |
898 | FATFS* fs /* Filesystem object */\r | |
899 | )\r | |
900 | {\r | |
901 | return ff_req_grant(fs->sobj);\r | |
902 | }\r | |
903 | \r | |
904 | \r | |
905 | static void unlock_fs (\r | |
906 | FATFS* fs, /* Filesystem object */\r | |
907 | FRESULT res /* Result code to be returned */\r | |
908 | )\r | |
909 | {\r | |
910 | if (fs && res != FR_NOT_ENABLED && res != FR_INVALID_DRIVE && res != FR_TIMEOUT) {\r | |
911 | ff_rel_grant(fs->sobj);\r | |
912 | }\r | |
913 | }\r | |
914 | \r | |
915 | #endif\r | |
916 | \r | |
917 | \r | |
918 | \r | |
919 | #if FF_FS_LOCK != 0\r | |
920 | /*-----------------------------------------------------------------------*/\r | |
921 | /* File lock control functions */\r | |
922 | /*-----------------------------------------------------------------------*/\r | |
923 | \r | |
924 | static FRESULT chk_lock ( /* Check if the file can be accessed */\r | |
925 | DIR* dp, /* Directory object pointing the file to be checked */\r | |
926 | int acc /* Desired access type (0:Read mode open, 1:Write mode open, 2:Delete or rename) */\r | |
927 | )\r | |
928 | {\r | |
929 | UINT i, be;\r | |
930 | \r | |
931 | /* Search open object table for the object */\r | |
932 | be = 0;\r | |
933 | for (i = 0; i < FF_FS_LOCK; i++) {\r | |
934 | if (Files[i].fs) { /* Existing entry */\r | |
935 | if (Files[i].fs == dp->obj.fs && /* Check if the object matches with an open object */\r | |
936 | Files[i].clu == dp->obj.sclust &&\r | |
937 | Files[i].ofs == dp->dptr) break;\r | |
938 | } else { /* Blank entry */\r | |
939 | be = 1;\r | |
940 | }\r | |
941 | }\r | |
942 | if (i == FF_FS_LOCK) { /* The object has not been opened */\r | |
943 | return (!be && acc != 2) ? FR_TOO_MANY_OPEN_FILES : FR_OK; /* Is there a blank entry for new object? */\r | |
944 | }\r | |
945 | \r | |
946 | /* The object was opened. Reject any open against writing file and all write mode open */\r | |
947 | return (acc != 0 || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;\r | |
948 | }\r | |
949 | \r | |
950 | \r | |
951 | static int enq_lock (void) /* Check if an entry is available for a new object */\r | |
952 | {\r | |
953 | UINT i;\r | |
954 | \r | |
955 | for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ;\r | |
956 | return (i == FF_FS_LOCK) ? 0 : 1;\r | |
957 | }\r | |
958 | \r | |
959 | \r | |
960 | static UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */\r | |
961 | DIR* dp, /* Directory object pointing the file to register or increment */\r | |
962 | int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */\r | |
963 | )\r | |
964 | {\r | |
965 | UINT i;\r | |
966 | \r | |
967 | \r | |
968 | for (i = 0; i < FF_FS_LOCK; i++) { /* Find the object */\r | |
969 | if (Files[i].fs == dp->obj.fs &&\r | |
970 | Files[i].clu == dp->obj.sclust &&\r | |
971 | Files[i].ofs == dp->dptr) break;\r | |
972 | }\r | |
973 | \r | |
974 | if (i == FF_FS_LOCK) { /* Not opened. Register it as new. */\r | |
975 | for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ;\r | |
976 | if (i == FF_FS_LOCK) return 0; /* No free entry to register (int err) */\r | |
977 | Files[i].fs = dp->obj.fs;\r | |
978 | Files[i].clu = dp->obj.sclust;\r | |
979 | Files[i].ofs = dp->dptr;\r | |
980 | Files[i].ctr = 0;\r | |
981 | }\r | |
982 | \r | |
983 | if (acc >= 1 && Files[i].ctr) return 0; /* Access violation (int err) */\r | |
984 | \r | |
985 | Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */\r | |
986 | \r | |
987 | return i + 1; /* Index number origin from 1 */\r | |
988 | }\r | |
989 | \r | |
990 | \r | |
991 | static FRESULT dec_lock ( /* Decrement object open counter */\r | |
992 | UINT i /* Semaphore index (1..) */\r | |
993 | )\r | |
994 | {\r | |
995 | WORD n;\r | |
996 | FRESULT res;\r | |
997 | \r | |
998 | \r | |
999 | if (--i < FF_FS_LOCK) { /* Index number origin from 0 */\r | |
1000 | n = Files[i].ctr;\r | |
1001 | if (n == 0x100) n = 0; /* If write mode open, delete the entry */\r | |
1002 | if (n > 0) n--; /* Decrement read mode open count */\r | |
1003 | Files[i].ctr = n;\r | |
1004 | if (n == 0) Files[i].fs = 0; /* Delete the entry if open count gets zero */\r | |
1005 | res = FR_OK;\r | |
1006 | } else {\r | |
1007 | res = FR_INT_ERR; /* Invalid index nunber */\r | |
1008 | }\r | |
1009 | return res;\r | |
1010 | }\r | |
1011 | \r | |
1012 | \r | |
1013 | static void clear_lock ( /* Clear lock entries of the volume */\r | |
1014 | FATFS *fs\r | |
1015 | )\r | |
1016 | {\r | |
1017 | UINT i;\r | |
1018 | \r | |
1019 | for (i = 0; i < FF_FS_LOCK; i++) {\r | |
1020 | if (Files[i].fs == fs) Files[i].fs = 0;\r | |
1021 | }\r | |
1022 | }\r | |
1023 | \r | |
1024 | #endif /* FF_FS_LOCK != 0 */\r | |
1025 | \r | |
1026 | \r | |
1027 | \r | |
1028 | /*-----------------------------------------------------------------------*/\r | |
1029 | /* Move/Flush disk access window in the filesystem object */\r | |
1030 | /*-----------------------------------------------------------------------*/\r | |
1031 | #if !FF_FS_READONLY\r | |
1032 | static FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1033 | FATFS* fs /* Filesystem object */\r | |
1034 | )\r | |
1035 | {\r | |
1036 | FRESULT res = FR_OK;\r | |
1037 | \r | |
1038 | \r | |
1039 | if (fs->wflag) { /* Is the disk access window dirty */\r | |
1040 | if (disk_write(fs->pdrv, fs->win, fs->winsect, 1) == RES_OK) { /* Write back the window */\r | |
1041 | fs->wflag = 0; /* Clear window dirty flag */\r | |
1042 | if (fs->winsect - fs->fatbase < fs->fsize) { /* Is it in the 1st FAT? */\r | |
1043 | if (fs->n_fats == 2) disk_write(fs->pdrv, fs->win, fs->winsect + fs->fsize, 1); /* Reflect it to 2nd FAT if needed */\r | |
1044 | }\r | |
1045 | } else {\r | |
1046 | res = FR_DISK_ERR;\r | |
1047 | }\r | |
1048 | }\r | |
1049 | return res;\r | |
1050 | }\r | |
1051 | #endif\r | |
1052 | \r | |
1053 | \r | |
1054 | static FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1055 | FATFS* fs, /* Filesystem object */\r | |
1056 | DWORD sector /* Sector number to make appearance in the fs->win[] */\r | |
1057 | )\r | |
1058 | {\r | |
1059 | FRESULT res = FR_OK;\r | |
1060 | \r | |
1061 | \r | |
1062 | if (sector != fs->winsect) { /* Window offset changed? */\r | |
1063 | #if !FF_FS_READONLY\r | |
1064 | res = sync_window(fs); /* Write-back changes */\r | |
1065 | #endif\r | |
1066 | if (res == FR_OK) { /* Fill sector window with new data */\r | |
1067 | if (disk_read(fs->pdrv, fs->win, sector, 1) != RES_OK) {\r | |
1068 | sector = 0xFFFFFFFF; /* Invalidate window if read data is not valid */\r | |
1069 | res = FR_DISK_ERR;\r | |
1070 | }\r | |
1071 | fs->winsect = sector;\r | |
1072 | }\r | |
1073 | }\r | |
1074 | return res;\r | |
1075 | }\r | |
1076 | \r | |
1077 | \r | |
1078 | \r | |
1079 | \r | |
1080 | #if !FF_FS_READONLY\r | |
1081 | /*-----------------------------------------------------------------------*/\r | |
1082 | /* Synchronize filesystem and data on the storage */\r | |
1083 | /*-----------------------------------------------------------------------*/\r | |
1084 | \r | |
1085 | static FRESULT sync_fs ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1086 | FATFS* fs /* Filesystem object */\r | |
1087 | )\r | |
1088 | {\r | |
1089 | FRESULT res;\r | |
1090 | \r | |
1091 | \r | |
1092 | res = sync_window(fs);\r | |
1093 | if (res == FR_OK) {\r | |
1094 | if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { /* FAT32: Update FSInfo sector if needed */\r | |
1095 | /* Create FSInfo structure */\r | |
1096 | mem_set(fs->win, 0, SS(fs));\r | |
1097 | st_word(fs->win + BS_55AA, 0xAA55);\r | |
1098 | st_dword(fs->win + FSI_LeadSig, 0x41615252);\r | |
1099 | st_dword(fs->win + FSI_StrucSig, 0x61417272);\r | |
1100 | st_dword(fs->win + FSI_Free_Count, fs->free_clst);\r | |
1101 | st_dword(fs->win + FSI_Nxt_Free, fs->last_clst);\r | |
1102 | /* Write it into the FSInfo sector */\r | |
1103 | fs->winsect = fs->volbase + 1;\r | |
1104 | disk_write(fs->pdrv, fs->win, fs->winsect, 1);\r | |
1105 | fs->fsi_flag = 0;\r | |
1106 | }\r | |
1107 | /* Make sure that no pending write process in the lower layer */\r | |
1108 | if (disk_ioctl(fs->pdrv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR;\r | |
1109 | }\r | |
1110 | \r | |
1111 | return res;\r | |
1112 | }\r | |
1113 | \r | |
1114 | #endif\r | |
1115 | \r | |
1116 | \r | |
1117 | \r | |
1118 | /*-----------------------------------------------------------------------*/\r | |
1119 | /* Get physical sector number from cluster number */\r | |
1120 | /*-----------------------------------------------------------------------*/\r | |
1121 | \r | |
1122 | static DWORD clst2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */\r | |
1123 | FATFS* fs, /* Filesystem object */\r | |
1124 | DWORD clst /* Cluster# to be converted */\r | |
1125 | )\r | |
1126 | {\r | |
1127 | clst -= 2; /* Cluster number is origin from 2 */\r | |
1128 | if (clst >= fs->n_fatent - 2) return 0; /* Is it invalid cluster number? */\r | |
1129 | return fs->database + fs->csize * clst; /* Start sector number of the cluster */\r | |
1130 | }\r | |
1131 | \r | |
1132 | \r | |
1133 | \r | |
1134 | \r | |
1135 | /*-----------------------------------------------------------------------*/\r | |
1136 | /* FAT access - Read value of a FAT entry */\r | |
1137 | /*-----------------------------------------------------------------------*/\r | |
1138 | \r | |
1139 | static DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */\r | |
1140 | FFOBJID* obj, /* Corresponding object */\r | |
1141 | DWORD clst /* Cluster number to get the value */\r | |
1142 | )\r | |
1143 | {\r | |
1144 | UINT wc, bc;\r | |
1145 | DWORD val;\r | |
1146 | FATFS *fs = obj->fs;\r | |
1147 | \r | |
1148 | \r | |
1149 | if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */\r | |
1150 | val = 1; /* Internal error */\r | |
1151 | \r | |
1152 | } else {\r | |
1153 | val = 0xFFFFFFFF; /* Default value falls on disk error */\r | |
1154 | \r | |
1155 | switch (fs->fs_type) {\r | |
1156 | case FS_FAT12 :\r | |
1157 | bc = (UINT)clst; bc += bc / 2;\r | |
1158 | if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;\r | |
1159 | wc = fs->win[bc++ % SS(fs)]; /* Get 1st byte of the entry */\r | |
1160 | if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;\r | |
1161 | wc |= fs->win[bc % SS(fs)] << 8; /* Merge 2nd byte of the entry */\r | |
1162 | val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF); /* Adjust bit position */\r | |
1163 | break;\r | |
1164 | \r | |
1165 | case FS_FAT16 :\r | |
1166 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;\r | |
1167 | val = ld_word(fs->win + clst * 2 % SS(fs)); /* Simple WORD array */\r | |
1168 | break;\r | |
1169 | \r | |
1170 | case FS_FAT32 :\r | |
1171 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;\r | |
1172 | val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; /* Simple DWORD array but mask out upper 4 bits */\r | |
1173 | break;\r | |
1174 | #if FF_FS_EXFAT\r | |
1175 | case FS_EXFAT :\r | |
1176 | if ((obj->objsize != 0 && obj->sclust != 0) || obj->stat == 0) { /* Object except root dir must have valid data length */\r | |
1177 | DWORD cofs = clst - obj->sclust; /* Offset from start cluster */\r | |
1178 | DWORD clen = (DWORD)((obj->objsize - 1) / SS(fs)) / fs->csize; /* Number of clusters - 1 */\r | |
1179 | \r | |
1180 | if (obj->stat == 2 && cofs <= clen) { /* Is it a contiguous chain? */\r | |
1181 | val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* No data on the FAT, generate the value */\r | |
1182 | break;\r | |
1183 | }\r | |
1184 | if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */\r | |
1185 | val = clst + 1; /* Generate the value */\r | |
1186 | break;\r | |
1187 | }\r | |
1188 | if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */\r | |
1189 | if (obj->n_frag != 0) { /* Is it on the growing edge? */\r | |
1190 | val = 0x7FFFFFFF; /* Generate EOC */\r | |
1191 | } else {\r | |
1192 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;\r | |
1193 | val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF;\r | |
1194 | }\r | |
1195 | break;\r | |
1196 | }\r | |
1197 | }\r | |
1198 | /* go to default */\r | |
1199 | #endif\r | |
1200 | default:\r | |
1201 | val = 1; /* Internal error */\r | |
1202 | }\r | |
1203 | }\r | |
1204 | \r | |
1205 | return val;\r | |
1206 | }\r | |
1207 | \r | |
1208 | \r | |
1209 | \r | |
1210 | \r | |
1211 | #if !FF_FS_READONLY\r | |
1212 | /*-----------------------------------------------------------------------*/\r | |
1213 | /* FAT access - Change value of a FAT entry */\r | |
1214 | /*-----------------------------------------------------------------------*/\r | |
1215 | \r | |
1216 | static FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */\r | |
1217 | FATFS* fs, /* Corresponding filesystem object */\r | |
1218 | DWORD clst, /* FAT index number (cluster number) to be changed */\r | |
1219 | DWORD val /* New value to be set to the entry */\r | |
1220 | )\r | |
1221 | {\r | |
1222 | UINT bc;\r | |
1223 | BYTE *p;\r | |
1224 | FRESULT res = FR_INT_ERR;\r | |
1225 | \r | |
1226 | \r | |
1227 | if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */\r | |
1228 | switch (fs->fs_type) {\r | |
1229 | case FS_FAT12 :\r | |
1230 | bc = (UINT)clst; bc += bc / 2; /* bc: byte offset of the entry */\r | |
1231 | res = move_window(fs, fs->fatbase + (bc / SS(fs)));\r | |
1232 | if (res != FR_OK) break;\r | |
1233 | p = fs->win + bc++ % SS(fs);\r | |
1234 | *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; /* Put 1st byte */\r | |
1235 | fs->wflag = 1;\r | |
1236 | res = move_window(fs, fs->fatbase + (bc / SS(fs)));\r | |
1237 | if (res != FR_OK) break;\r | |
1238 | p = fs->win + bc % SS(fs);\r | |
1239 | *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); /* Put 2nd byte */\r | |
1240 | fs->wflag = 1;\r | |
1241 | break;\r | |
1242 | \r | |
1243 | case FS_FAT16 :\r | |
1244 | res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));\r | |
1245 | if (res != FR_OK) break;\r | |
1246 | st_word(fs->win + clst * 2 % SS(fs), (WORD)val); /* Simple WORD array */\r | |
1247 | fs->wflag = 1;\r | |
1248 | break;\r | |
1249 | \r | |
1250 | case FS_FAT32 :\r | |
1251 | #if FF_FS_EXFAT\r | |
1252 | case FS_EXFAT :\r | |
1253 | #endif\r | |
1254 | res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));\r | |
1255 | if (res != FR_OK) break;\r | |
1256 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {\r | |
1257 | val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000);\r | |
1258 | }\r | |
1259 | st_dword(fs->win + clst * 4 % SS(fs), val);\r | |
1260 | fs->wflag = 1;\r | |
1261 | break;\r | |
1262 | }\r | |
1263 | }\r | |
1264 | return res;\r | |
1265 | }\r | |
1266 | \r | |
1267 | #endif /* !FF_FS_READONLY */\r | |
1268 | \r | |
1269 | \r | |
1270 | \r | |
1271 | \r | |
1272 | #if FF_FS_EXFAT && !FF_FS_READONLY\r | |
1273 | /*-----------------------------------------------------------------------*/\r | |
1274 | /* exFAT: Accessing FAT and Allocation Bitmap */\r | |
1275 | /*-----------------------------------------------------------------------*/\r | |
1276 | \r | |
1277 | /*--------------------------------------*/\r | |
1278 | /* Find a contiguous free cluster block */\r | |
1279 | /*--------------------------------------*/\r | |
1280 | \r | |
1281 | static DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */\r | |
1282 | FATFS* fs, /* Filesystem object */\r | |
1283 | DWORD clst, /* Cluster number to scan from */\r | |
1284 | DWORD ncl /* Number of contiguous clusters to find (1..) */\r | |
1285 | )\r | |
1286 | {\r | |
1287 | BYTE bm, bv;\r | |
1288 | UINT i;\r | |
1289 | DWORD val, scl, ctr;\r | |
1290 | \r | |
1291 | \r | |
1292 | clst -= 2; /* The first bit in the bitmap corresponds to cluster #2 */\r | |
1293 | if (clst >= fs->n_fatent - 2) clst = 0;\r | |
1294 | scl = val = clst; ctr = 0;\r | |
1295 | for (;;) {\r | |
1296 | if (move_window(fs, fs->database + val / 8 / SS(fs)) != FR_OK) return 0xFFFFFFFF; /* (assuming bitmap is located top of the cluster heap) */\r | |
1297 | i = val / 8 % SS(fs); bm = 1 << (val % 8);\r | |
1298 | do {\r | |
1299 | do {\r | |
1300 | bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */\r | |
1301 | if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */\r | |
1302 | val = 0; bm = 0; i = SS(fs);\r | |
1303 | }\r | |
1304 | if (bv == 0) { /* Is it a free cluster? */\r | |
1305 | if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */\r | |
1306 | } else {\r | |
1307 | scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */\r | |
1308 | }\r | |
1309 | if (val == clst) return 0; /* All cluster scanned? */\r | |
1310 | } while (bm != 0);\r | |
1311 | bm = 1;\r | |
1312 | } while (++i < SS(fs));\r | |
1313 | }\r | |
1314 | }\r | |
1315 | \r | |
1316 | \r | |
1317 | /*----------------------------------------*/\r | |
1318 | /* Set/Clear a block of allocation bitmap */\r | |
1319 | /*----------------------------------------*/\r | |
1320 | \r | |
1321 | static FRESULT change_bitmap (\r | |
1322 | FATFS* fs, /* Filesystem object */\r | |
1323 | DWORD clst, /* Cluster number to change from */\r | |
1324 | DWORD ncl, /* Number of clusters to be changed */\r | |
1325 | int bv /* bit value to be set (0 or 1) */\r | |
1326 | )\r | |
1327 | {\r | |
1328 | BYTE bm;\r | |
1329 | UINT i;\r | |
1330 | DWORD sect;\r | |
1331 | \r | |
1332 | \r | |
1333 | clst -= 2; /* The first bit corresponds to cluster #2 */\r | |
1334 | sect = fs->database + clst / 8 / SS(fs); /* Sector address (assuming bitmap is located top of the cluster heap) */\r | |
1335 | i = clst / 8 % SS(fs); /* Byte offset in the sector */\r | |
1336 | bm = 1 << (clst % 8); /* Bit mask in the byte */\r | |
1337 | for (;;) {\r | |
1338 | if (move_window(fs, sect++) != FR_OK) return FR_DISK_ERR;\r | |
1339 | do {\r | |
1340 | do {\r | |
1341 | if (bv == (int)((fs->win[i] & bm) != 0)) return FR_INT_ERR; /* Is the bit expected value? */\r | |
1342 | fs->win[i] ^= bm; /* Flip the bit */\r | |
1343 | fs->wflag = 1;\r | |
1344 | if (--ncl == 0) return FR_OK; /* All bits processed? */\r | |
1345 | } while (bm <<= 1); /* Next bit */\r | |
1346 | bm = 1;\r | |
1347 | } while (++i < SS(fs)); /* Next byte */\r | |
1348 | i = 0;\r | |
1349 | }\r | |
1350 | }\r | |
1351 | \r | |
1352 | \r | |
1353 | /*---------------------------------------------*/\r | |
1354 | /* Fill the first fragment of the FAT chain */\r | |
1355 | /*---------------------------------------------*/\r | |
1356 | \r | |
1357 | static FRESULT fill_first_frag (\r | |
1358 | FFOBJID* obj /* Pointer to the corresponding object */\r | |
1359 | )\r | |
1360 | {\r | |
1361 | FRESULT res;\r | |
1362 | DWORD cl, n;\r | |
1363 | \r | |
1364 | \r | |
1365 | if (obj->stat == 3) { /* Has the object been changed 'fragmented' in this session? */\r | |
1366 | for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */\r | |
1367 | res = put_fat(obj->fs, cl, cl + 1);\r | |
1368 | if (res != FR_OK) return res;\r | |
1369 | }\r | |
1370 | obj->stat = 0; /* Change status 'FAT chain is valid' */\r | |
1371 | }\r | |
1372 | return FR_OK;\r | |
1373 | }\r | |
1374 | \r | |
1375 | \r | |
1376 | /*---------------------------------------------*/\r | |
1377 | /* Fill the last fragment of the FAT chain */\r | |
1378 | /*---------------------------------------------*/\r | |
1379 | \r | |
1380 | static FRESULT fill_last_frag (\r | |
1381 | FFOBJID* obj, /* Pointer to the corresponding object */\r | |
1382 | DWORD lcl, /* Last cluster of the fragment */\r | |
1383 | DWORD term /* Value to set the last FAT entry */\r | |
1384 | )\r | |
1385 | {\r | |
1386 | FRESULT res;\r | |
1387 | \r | |
1388 | \r | |
1389 | while (obj->n_frag > 0) { /* Create the chain of last fragment */\r | |
1390 | res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term);\r | |
1391 | if (res != FR_OK) return res;\r | |
1392 | obj->n_frag--;\r | |
1393 | }\r | |
1394 | return FR_OK;\r | |
1395 | }\r | |
1396 | \r | |
1397 | #endif /* FF_FS_EXFAT && !FF_FS_READONLY */\r | |
1398 | \r | |
1399 | \r | |
1400 | \r | |
1401 | #if !FF_FS_READONLY\r | |
1402 | /*-----------------------------------------------------------------------*/\r | |
1403 | /* FAT handling - Remove a cluster chain */\r | |
1404 | /*-----------------------------------------------------------------------*/\r | |
1405 | \r | |
1406 | static FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */\r | |
1407 | FFOBJID* obj, /* Corresponding object */\r | |
1408 | DWORD clst, /* Cluster to remove a chain from */\r | |
1409 | DWORD pclst /* Previous cluster of clst (0:entire chain) */\r | |
1410 | )\r | |
1411 | {\r | |
1412 | FRESULT res = FR_OK;\r | |
1413 | DWORD nxt;\r | |
1414 | FATFS *fs = obj->fs;\r | |
1415 | #if FF_FS_EXFAT || FF_USE_TRIM\r | |
1416 | DWORD scl = clst, ecl = clst;\r | |
1417 | #endif\r | |
1418 | #if FF_USE_TRIM\r | |
1419 | DWORD rt[2];\r | |
1420 | #endif\r | |
1421 | \r | |
1422 | if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */\r | |
1423 | \r | |
1424 | /* Mark the previous cluster 'EOC' on the FAT if it exists */\r | |
1425 | if (pclst != 0 && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) {\r | |
1426 | res = put_fat(fs, pclst, 0xFFFFFFFF);\r | |
1427 | if (res != FR_OK) return res;\r | |
1428 | }\r | |
1429 | \r | |
1430 | /* Remove the chain */\r | |
1431 | do {\r | |
1432 | nxt = get_fat(obj, clst); /* Get cluster status */\r | |
1433 | if (nxt == 0) break; /* Empty cluster? */\r | |
1434 | if (nxt == 1) return FR_INT_ERR; /* Internal error? */\r | |
1435 | if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */\r | |
1436 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {\r | |
1437 | res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */\r | |
1438 | if (res != FR_OK) return res;\r | |
1439 | }\r | |
1440 | if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */\r | |
1441 | fs->free_clst++;\r | |
1442 | fs->fsi_flag |= 1;\r | |
1443 | }\r | |
1444 | #if FF_FS_EXFAT || FF_USE_TRIM\r | |
1445 | if (ecl + 1 == nxt) { /* Is next cluster contiguous? */\r | |
1446 | ecl = nxt;\r | |
1447 | } else { /* End of contiguous cluster block */\r | |
1448 | #if FF_FS_EXFAT\r | |
1449 | if (fs->fs_type == FS_EXFAT) {\r | |
1450 | res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */\r | |
1451 | if (res != FR_OK) return res;\r | |
1452 | }\r | |
1453 | #endif\r | |
1454 | #if FF_USE_TRIM\r | |
1455 | rt[0] = clst2sect(fs, scl); /* Start of data area freed */\r | |
1456 | rt[1] = clst2sect(fs, ecl) + fs->csize - 1; /* End of data area freed */\r | |
1457 | disk_ioctl(fs->pdrv, CTRL_TRIM, rt); /* Inform device the data in the block is no longer needed */\r | |
1458 | #endif\r | |
1459 | scl = ecl = nxt;\r | |
1460 | }\r | |
1461 | #endif\r | |
1462 | clst = nxt; /* Next cluster */\r | |
1463 | } while (clst < fs->n_fatent); /* Repeat while not the last link */\r | |
1464 | \r | |
1465 | #if FF_FS_EXFAT\r | |
1466 | /* Some post processes for chain status */\r | |
1467 | if (fs->fs_type == FS_EXFAT) {\r | |
1468 | if (pclst == 0) { /* Has the entire chain been removed? */\r | |
1469 | obj->stat = 0; /* Change the chain status 'initial' */\r | |
1470 | } else {\r | |
1471 | if (obj->stat == 0) { /* Is it a fragmented chain from the beginning of this session? */\r | |
1472 | clst = obj->sclust; /* Follow the chain to check if it gets contiguous */\r | |
1473 | while (clst != pclst) {\r | |
1474 | nxt = get_fat(obj, clst);\r | |
1475 | if (nxt < 2) return FR_INT_ERR;\r | |
1476 | if (nxt == 0xFFFFFFFF) return FR_DISK_ERR;\r | |
1477 | if (nxt != clst + 1) break; /* Not contiguous? */\r | |
1478 | clst++;\r | |
1479 | }\r | |
1480 | if (clst == pclst) { /* Has the chain got contiguous again? */\r | |
1481 | obj->stat = 2; /* Change the chain status 'contiguous' */\r | |
1482 | }\r | |
1483 | } else {\r | |
1484 | if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Was the chain fragmented in this session and got contiguous again? */\r | |
1485 | obj->stat = 2; /* Change the chain status 'contiguous' */\r | |
1486 | }\r | |
1487 | }\r | |
1488 | }\r | |
1489 | }\r | |
1490 | #endif\r | |
1491 | return FR_OK;\r | |
1492 | }\r | |
1493 | \r | |
1494 | \r | |
1495 | \r | |
1496 | \r | |
1497 | /*-----------------------------------------------------------------------*/\r | |
1498 | /* FAT handling - Stretch a chain or Create a new chain */\r | |
1499 | /*-----------------------------------------------------------------------*/\r | |
1500 | \r | |
1501 | static DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */\r | |
1502 | FFOBJID* obj, /* Corresponding object */\r | |
1503 | DWORD clst /* Cluster# to stretch, 0:Create a new chain */\r | |
1504 | )\r | |
1505 | {\r | |
1506 | DWORD cs, ncl, scl;\r | |
1507 | FRESULT res;\r | |
1508 | FATFS *fs = obj->fs;\r | |
1509 | \r | |
1510 | \r | |
1511 | if (clst == 0) { /* Create a new chain */\r | |
1512 | scl = fs->last_clst; /* Suggested cluster to start to find */\r | |
1513 | if (scl == 0 || scl >= fs->n_fatent) scl = 1;\r | |
1514 | }\r | |
1515 | else { /* Stretch a chain */\r | |
1516 | cs = get_fat(obj, clst); /* Check the cluster status */\r | |
1517 | if (cs < 2) return 1; /* Test for insanity */\r | |
1518 | if (cs == 0xFFFFFFFF) return cs; /* Test for disk error */\r | |
1519 | if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */\r | |
1520 | scl = clst; /* Cluster to start to find */\r | |
1521 | }\r | |
1522 | if (fs->free_clst == 0) return 0; /* No free cluster */\r | |
1523 | \r | |
1524 | #if FF_FS_EXFAT\r | |
1525 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
1526 | ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */\r | |
1527 | if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */\r | |
1528 | res = change_bitmap(fs, ncl, 1, 1); /* Mark the cluster 'in use' */\r | |
1529 | if (res == FR_INT_ERR) return 1;\r | |
1530 | if (res == FR_DISK_ERR) return 0xFFFFFFFF;\r | |
1531 | if (clst == 0) { /* Is it a new chain? */\r | |
1532 | obj->stat = 2; /* Set status 'contiguous' */\r | |
1533 | } else { /* It is a stretched chain */\r | |
1534 | if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */\r | |
1535 | obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */\r | |
1536 | obj->stat = 3; /* Change status 'just fragmented' */\r | |
1537 | }\r | |
1538 | }\r | |
1539 | if (obj->stat != 2) { /* Is the file non-contiguous? */\r | |
1540 | if (ncl == clst + 1) { /* Is the cluster next to previous one? */\r | |
1541 | obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */\r | |
1542 | } else { /* New fragment */\r | |
1543 | if (obj->n_frag == 0) obj->n_frag = 1;\r | |
1544 | res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */\r | |
1545 | if (res == FR_OK) obj->n_frag = 1;\r | |
1546 | }\r | |
1547 | }\r | |
1548 | } else\r | |
1549 | #endif\r | |
1550 | { /* On the FAT/FAT32 volume */\r | |
1551 | ncl = 0;\r | |
1552 | if (scl == clst) { /* Stretching an existing chain? */\r | |
1553 | ncl = scl + 1; /* Test if next cluster is free */\r | |
1554 | if (ncl >= fs->n_fatent) ncl = 2;\r | |
1555 | cs = get_fat(obj, ncl); /* Get next cluster status */\r | |
1556 | if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */\r | |
1557 | if (cs != 0) { /* Not free? */\r | |
1558 | cs = fs->last_clst; /* Start at suggested cluster if it is valid */\r | |
1559 | if (cs >= 2 && cs < fs->n_fatent) scl = cs;\r | |
1560 | ncl = 0;\r | |
1561 | }\r | |
1562 | }\r | |
1563 | if (ncl == 0) { /* The new cluster cannot be contiguous and find another fragment */\r | |
1564 | ncl = scl; /* Start cluster */\r | |
1565 | for (;;) {\r | |
1566 | ncl++; /* Next cluster */\r | |
1567 | if (ncl >= fs->n_fatent) { /* Check wrap-around */\r | |
1568 | ncl = 2;\r | |
1569 | if (ncl > scl) return 0; /* No free cluster found? */\r | |
1570 | }\r | |
1571 | cs = get_fat(obj, ncl); /* Get the cluster status */\r | |
1572 | if (cs == 0) break; /* Found a free cluster? */\r | |
1573 | if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */\r | |
1574 | if (ncl == scl) return 0; /* No free cluster found? */\r | |
1575 | }\r | |
1576 | }\r | |
1577 | res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */\r | |
1578 | if (res == FR_OK && clst != 0) {\r | |
1579 | res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */\r | |
1580 | }\r | |
1581 | }\r | |
1582 | \r | |
1583 | if (res == FR_OK) { /* Update FSINFO if function succeeded. */\r | |
1584 | fs->last_clst = ncl;\r | |
1585 | if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--;\r | |
1586 | fs->fsi_flag |= 1;\r | |
1587 | } else {\r | |
1588 | ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */\r | |
1589 | }\r | |
1590 | \r | |
1591 | return ncl; /* Return new cluster number or error status */\r | |
1592 | }\r | |
1593 | \r | |
1594 | #endif /* !FF_FS_READONLY */\r | |
1595 | \r | |
1596 | \r | |
1597 | \r | |
1598 | \r | |
1599 | #if FF_USE_FASTSEEK\r | |
1600 | /*-----------------------------------------------------------------------*/\r | |
1601 | /* FAT handling - Convert offset into cluster with link map table */\r | |
1602 | /*-----------------------------------------------------------------------*/\r | |
1603 | \r | |
1604 | static DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */\r | |
1605 | FIL* fp, /* Pointer to the file object */\r | |
1606 | FSIZE_t ofs /* File offset to be converted to cluster# */\r | |
1607 | )\r | |
1608 | {\r | |
1609 | DWORD cl, ncl, *tbl;\r | |
1610 | FATFS *fs = fp->obj.fs;\r | |
1611 | \r | |
1612 | \r | |
1613 | tbl = fp->cltbl + 1; /* Top of CLMT */\r | |
1614 | cl = (DWORD)(ofs / SS(fs) / fs->csize); /* Cluster order from top of the file */\r | |
1615 | for (;;) {\r | |
1616 | ncl = *tbl++; /* Number of cluters in the fragment */\r | |
1617 | if (ncl == 0) return 0; /* End of table? (error) */\r | |
1618 | if (cl < ncl) break; /* In this fragment? */\r | |
1619 | cl -= ncl; tbl++; /* Next fragment */\r | |
1620 | }\r | |
1621 | return cl + *tbl; /* Return the cluster number */\r | |
1622 | }\r | |
1623 | \r | |
1624 | #endif /* FF_USE_FASTSEEK */\r | |
1625 | \r | |
1626 | \r | |
1627 | \r | |
1628 | \r | |
1629 | /*-----------------------------------------------------------------------*/\r | |
1630 | /* Directory handling - Fill a cluster with zeros */\r | |
1631 | /*-----------------------------------------------------------------------*/\r | |
1632 | \r | |
1633 | #if !FF_FS_READONLY\r | |
1634 | static FRESULT dir_clear ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1635 | FATFS *fs, /* Filesystem object */\r | |
1636 | DWORD clst /* Directory table to clear */\r | |
1637 | )\r | |
1638 | {\r | |
1639 | DWORD sect;\r | |
1640 | UINT n, szb;\r | |
1641 | BYTE *ibuf;\r | |
1642 | \r | |
1643 | \r | |
1644 | if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */\r | |
1645 | sect = clst2sect(fs, clst); /* Top of the cluster */\r | |
1646 | fs->winsect = sect; /* Set window to top of the cluster */\r | |
1647 | mem_set(fs->win, 0, SS(fs)); /* Clear window buffer */\r | |
1648 | #if FF_USE_LFN == 3 /* Quick table clear by using multi-secter write */\r | |
1649 | /* Allocate a temporary buffer */\r | |
1650 | for (szb = ((DWORD)fs->csize * SS(fs) >= MAX_MALLOC) ? MAX_MALLOC : fs->csize * SS(fs), ibuf = 0; szb > SS(fs) && (ibuf = ff_memalloc(szb)) == 0; szb /= 2) ;\r | |
1651 | if (szb > SS(fs)) { /* Buffer allocated? */\r | |
1652 | mem_set(ibuf, 0, szb);\r | |
1653 | szb /= SS(fs); /* Bytes -> Sectors */\r | |
1654 | for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */\r | |
1655 | ff_memfree(ibuf);\r | |
1656 | } else\r | |
1657 | #endif\r | |
1658 | {\r | |
1659 | ibuf = fs->win; szb = 1; /* Use window buffer (many single-sector writes may take a time) */\r | |
1660 | for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */\r | |
1661 | }\r | |
1662 | return (n == fs->csize) ? FR_OK : FR_DISK_ERR;\r | |
1663 | }\r | |
1664 | #endif /* !FF_FS_READONLY */\r | |
1665 | \r | |
1666 | \r | |
1667 | \r | |
1668 | \r | |
1669 | /*-----------------------------------------------------------------------*/\r | |
1670 | /* Directory handling - Set directory index */\r | |
1671 | /*-----------------------------------------------------------------------*/\r | |
1672 | \r | |
1673 | static FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */\r | |
1674 | DIR* dp, /* Pointer to directory object */\r | |
1675 | DWORD ofs /* Offset of directory table */\r | |
1676 | )\r | |
1677 | {\r | |
1678 | DWORD csz, clst;\r | |
1679 | FATFS *fs = dp->obj.fs;\r | |
1680 | \r | |
1681 | \r | |
1682 | if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */\r | |
1683 | return FR_INT_ERR;\r | |
1684 | }\r | |
1685 | dp->dptr = ofs; /* Set current offset */\r | |
1686 | clst = dp->obj.sclust; /* Table start cluster (0:root) */\r | |
1687 | if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */\r | |
1688 | clst = fs->dirbase;\r | |
1689 | if (FF_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */\r | |
1690 | }\r | |
1691 | \r | |
1692 | if (clst == 0) { /* Static table (root-directory on the FAT volume) */\r | |
1693 | if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */\r | |
1694 | dp->sect = fs->dirbase;\r | |
1695 | \r | |
1696 | } else { /* Dynamic table (sub-directory or root-directory on the FAT32/exFAT volume) */\r | |
1697 | csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */\r | |
1698 | while (ofs >= csz) { /* Follow cluster chain */\r | |
1699 | clst = get_fat(&dp->obj, clst); /* Get next cluster */\r | |
1700 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r | |
1701 | if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */\r | |
1702 | ofs -= csz;\r | |
1703 | }\r | |
1704 | dp->sect = clst2sect(fs, clst);\r | |
1705 | }\r | |
1706 | dp->clust = clst; /* Current cluster# */\r | |
1707 | if (dp->sect == 0) return FR_INT_ERR;\r | |
1708 | dp->sect += ofs / SS(fs); /* Sector# of the directory entry */\r | |
1709 | dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */\r | |
1710 | \r | |
1711 | return FR_OK;\r | |
1712 | }\r | |
1713 | \r | |
1714 | \r | |
1715 | \r | |
1716 | \r | |
1717 | /*-----------------------------------------------------------------------*/\r | |
1718 | /* Directory handling - Move directory table index next */\r | |
1719 | /*-----------------------------------------------------------------------*/\r | |
1720 | \r | |
1721 | static FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */\r | |
1722 | DIR* dp, /* Pointer to the directory object */\r | |
1723 | int stretch /* 0: Do not stretch table, 1: Stretch table if needed */\r | |
1724 | )\r | |
1725 | {\r | |
1726 | DWORD ofs, clst;\r | |
1727 | FATFS *fs = dp->obj.fs;\r | |
1728 | \r | |
1729 | \r | |
1730 | ofs = dp->dptr + SZDIRE; /* Next entry */\r | |
1731 | if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) dp->sect = 0; /* Disable it if the offset reached the max value */\r | |
1732 | if (dp->sect == 0) return FR_NO_FILE; /* Report EOT if it has been disabled */\r | |
1733 | \r | |
1734 | if (ofs % SS(fs) == 0) { /* Sector changed? */\r | |
1735 | dp->sect++; /* Next sector */\r | |
1736 | \r | |
1737 | if (dp->clust == 0) { /* Static table */\r | |
1738 | if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */\r | |
1739 | dp->sect = 0; return FR_NO_FILE;\r | |
1740 | }\r | |
1741 | }\r | |
1742 | else { /* Dynamic table */\r | |
1743 | if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */\r | |
1744 | clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */\r | |
1745 | if (clst <= 1) return FR_INT_ERR; /* Internal error */\r | |
1746 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r | |
1747 | if (clst >= fs->n_fatent) { /* It reached end of dynamic table */\r | |
1748 | #if !FF_FS_READONLY\r | |
1749 | if (!stretch) { /* If no stretch, report EOT */\r | |
1750 | dp->sect = 0; return FR_NO_FILE;\r | |
1751 | }\r | |
1752 | clst = create_chain(&dp->obj, dp->clust); /* Allocate a cluster */\r | |
1753 | if (clst == 0) return FR_DENIED; /* No free cluster */\r | |
1754 | if (clst == 1) return FR_INT_ERR; /* Internal error */\r | |
1755 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r | |
1756 | if (dir_clear(fs, clst) != FR_OK) return FR_DISK_ERR; /* Clean up the stretched table */\r | |
1757 | if (FF_FS_EXFAT) dp->obj.stat |= 4; /* exFAT: The directory has been stretched */\r | |
1758 | #else\r | |
1759 | if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */\r | |
1760 | dp->sect = 0; return FR_NO_FILE; /* Report EOT */\r | |
1761 | #endif\r | |
1762 | }\r | |
1763 | dp->clust = clst; /* Initialize data for new cluster */\r | |
1764 | dp->sect = clst2sect(fs, clst);\r | |
1765 | }\r | |
1766 | }\r | |
1767 | }\r | |
1768 | dp->dptr = ofs; /* Current entry */\r | |
1769 | dp->dir = fs->win + ofs % SS(fs); /* Pointer to the entry in the win[] */\r | |
1770 | \r | |
1771 | return FR_OK;\r | |
1772 | }\r | |
1773 | \r | |
1774 | \r | |
1775 | \r | |
1776 | \r | |
1777 | #if !FF_FS_READONLY\r | |
1778 | /*-----------------------------------------------------------------------*/\r | |
1779 | /* Directory handling - Reserve a block of directory entries */\r | |
1780 | /*-----------------------------------------------------------------------*/\r | |
1781 | \r | |
1782 | static FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */\r | |
1783 | DIR* dp, /* Pointer to the directory object */\r | |
1784 | UINT nent /* Number of contiguous entries to allocate */\r | |
1785 | )\r | |
1786 | {\r | |
1787 | FRESULT res;\r | |
1788 | UINT n;\r | |
1789 | FATFS *fs = dp->obj.fs;\r | |
1790 | \r | |
1791 | \r | |
1792 | res = dir_sdi(dp, 0);\r | |
1793 | if (res == FR_OK) {\r | |
1794 | n = 0;\r | |
1795 | do {\r | |
1796 | res = move_window(fs, dp->sect);\r | |
1797 | if (res != FR_OK) break;\r | |
1798 | #if FF_FS_EXFAT\r | |
1799 | if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) {\r | |
1800 | #else\r | |
1801 | if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) {\r | |
1802 | #endif\r | |
1803 | if (++n == nent) break; /* A block of contiguous free entries is found */\r | |
1804 | } else {\r | |
1805 | n = 0; /* Not a blank entry. Restart to search */\r | |
1806 | }\r | |
1807 | res = dir_next(dp, 1);\r | |
1808 | } while (res == FR_OK); /* Next entry with table stretch enabled */\r | |
1809 | }\r | |
1810 | \r | |
1811 | if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */\r | |
1812 | return res;\r | |
1813 | }\r | |
1814 | \r | |
1815 | #endif /* !FF_FS_READONLY */\r | |
1816 | \r | |
1817 | \r | |
1818 | \r | |
1819 | \r | |
1820 | /*-----------------------------------------------------------------------*/\r | |
1821 | /* FAT: Directory handling - Load/Store start cluster number */\r | |
1822 | /*-----------------------------------------------------------------------*/\r | |
1823 | \r | |
1824 | static DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */\r | |
1825 | FATFS* fs, /* Pointer to the fs object */\r | |
1826 | const BYTE* dir /* Pointer to the key entry */\r | |
1827 | )\r | |
1828 | {\r | |
1829 | DWORD cl;\r | |
1830 | \r | |
1831 | cl = ld_word(dir + DIR_FstClusLO);\r | |
1832 | if (fs->fs_type == FS_FAT32) {\r | |
1833 | cl |= (DWORD)ld_word(dir + DIR_FstClusHI) << 16;\r | |
1834 | }\r | |
1835 | \r | |
1836 | return cl;\r | |
1837 | }\r | |
1838 | \r | |
1839 | \r | |
1840 | #if !FF_FS_READONLY\r | |
1841 | static void st_clust (\r | |
1842 | FATFS* fs, /* Pointer to the fs object */\r | |
1843 | BYTE* dir, /* Pointer to the key entry */\r | |
1844 | DWORD cl /* Value to be set */\r | |
1845 | )\r | |
1846 | {\r | |
1847 | st_word(dir + DIR_FstClusLO, (WORD)cl);\r | |
1848 | if (fs->fs_type == FS_FAT32) {\r | |
1849 | st_word(dir + DIR_FstClusHI, (WORD)(cl >> 16));\r | |
1850 | }\r | |
1851 | }\r | |
1852 | #endif\r | |
1853 | \r | |
1854 | \r | |
1855 | \r | |
1856 | #if FF_USE_LFN\r | |
1857 | /*--------------------------------------------------------*/\r | |
1858 | /* FAT-LFN: Compare a part of file name with an LFN entry */\r | |
1859 | /*--------------------------------------------------------*/\r | |
1860 | \r | |
1861 | static int cmp_lfn ( /* 1:matched, 0:not matched */\r | |
1862 | const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */\r | |
1863 | BYTE* dir /* Pointer to the directory entry containing the part of LFN */\r | |
1864 | )\r | |
1865 | {\r | |
1866 | UINT i, s;\r | |
1867 | WCHAR wc, uc;\r | |
1868 | \r | |
1869 | \r | |
1870 | if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */\r | |
1871 | \r | |
1872 | i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */\r | |
1873 | \r | |
1874 | for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */\r | |
1875 | uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */\r | |
1876 | if (wc != 0) {\r | |
1877 | if (i >= FF_MAX_LFN || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */\r | |
1878 | return 0; /* Not matched */\r | |
1879 | }\r | |
1880 | wc = uc;\r | |
1881 | } else {\r | |
1882 | if (uc != 0xFFFF) return 0; /* Check filler */\r | |
1883 | }\r | |
1884 | }\r | |
1885 | \r | |
1886 | if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) return 0; /* Last segment matched but different length */\r | |
1887 | \r | |
1888 | return 1; /* The part of LFN matched */\r | |
1889 | }\r | |
1890 | \r | |
1891 | \r | |
1892 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT\r | |
1893 | /*-----------------------------------------------------*/\r | |
1894 | /* FAT-LFN: Pick a part of file name from an LFN entry */\r | |
1895 | /*-----------------------------------------------------*/\r | |
1896 | \r | |
1897 | static int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */\r | |
1898 | WCHAR* lfnbuf, /* Pointer to the LFN working buffer */\r | |
1899 | BYTE* dir /* Pointer to the LFN entry */\r | |
1900 | )\r | |
1901 | {\r | |
1902 | UINT i, s;\r | |
1903 | WCHAR wc, uc;\r | |
1904 | \r | |
1905 | \r | |
1906 | if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */\r | |
1907 | \r | |
1908 | i = ((dir[LDIR_Ord] & ~LLEF) - 1) * 13; /* Offset in the LFN buffer */\r | |
1909 | \r | |
1910 | for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */\r | |
1911 | uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */\r | |
1912 | if (wc != 0) {\r | |
1913 | if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */\r | |
1914 | lfnbuf[i++] = wc = uc; /* Store it */\r | |
1915 | } else {\r | |
1916 | if (uc != 0xFFFF) return 0; /* Check filler */\r | |
1917 | }\r | |
1918 | }\r | |
1919 | \r | |
1920 | if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */\r | |
1921 | if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */\r | |
1922 | lfnbuf[i] = 0;\r | |
1923 | }\r | |
1924 | \r | |
1925 | return 1; /* The part of LFN is valid */\r | |
1926 | }\r | |
1927 | #endif\r | |
1928 | \r | |
1929 | \r | |
1930 | #if !FF_FS_READONLY\r | |
1931 | /*-----------------------------------------*/\r | |
1932 | /* FAT-LFN: Create an entry of LFN entries */\r | |
1933 | /*-----------------------------------------*/\r | |
1934 | \r | |
1935 | static void put_lfn (\r | |
1936 | const WCHAR* lfn, /* Pointer to the LFN */\r | |
1937 | BYTE* dir, /* Pointer to the LFN entry to be created */\r | |
1938 | BYTE ord, /* LFN order (1-20) */\r | |
1939 | BYTE sum /* Checksum of the corresponding SFN */\r | |
1940 | )\r | |
1941 | {\r | |
1942 | UINT i, s;\r | |
1943 | WCHAR wc;\r | |
1944 | \r | |
1945 | \r | |
1946 | dir[LDIR_Chksum] = sum; /* Set checksum */\r | |
1947 | dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */\r | |
1948 | dir[LDIR_Type] = 0;\r | |
1949 | st_word(dir + LDIR_FstClusLO, 0);\r | |
1950 | \r | |
1951 | i = (ord - 1) * 13; /* Get offset in the LFN working buffer */\r | |
1952 | s = wc = 0;\r | |
1953 | do {\r | |
1954 | if (wc != 0xFFFF) wc = lfn[i++]; /* Get an effective character */\r | |
1955 | st_word(dir + LfnOfs[s], wc); /* Put it */\r | |
1956 | if (wc == 0) wc = 0xFFFF; /* Padding characters for left locations */\r | |
1957 | } while (++s < 13);\r | |
1958 | if (wc == 0xFFFF || !lfn[i]) ord |= LLEF; /* Last LFN part is the start of LFN sequence */\r | |
1959 | dir[LDIR_Ord] = ord; /* Set the LFN order */\r | |
1960 | }\r | |
1961 | \r | |
1962 | #endif /* !FF_FS_READONLY */\r | |
1963 | #endif /* FF_USE_LFN */\r | |
1964 | \r | |
1965 | \r | |
1966 | \r | |
1967 | #if FF_USE_LFN && !FF_FS_READONLY\r | |
1968 | /*-----------------------------------------------------------------------*/\r | |
1969 | /* FAT-LFN: Create a Numbered SFN */\r | |
1970 | /*-----------------------------------------------------------------------*/\r | |
1971 | \r | |
1972 | static void gen_numname (\r | |
1973 | BYTE* dst, /* Pointer to the buffer to store numbered SFN */\r | |
1974 | const BYTE* src, /* Pointer to SFN */\r | |
1975 | const WCHAR* lfn, /* Pointer to LFN */\r | |
1976 | UINT seq /* Sequence number */\r | |
1977 | )\r | |
1978 | {\r | |
1979 | BYTE ns[8], c;\r | |
1980 | UINT i, j;\r | |
1981 | WCHAR wc;\r | |
1982 | DWORD sr;\r | |
1983 | \r | |
1984 | \r | |
1985 | mem_cpy(dst, src, 11);\r | |
1986 | \r | |
1987 | if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */\r | |
1988 | sr = seq;\r | |
1989 | while (*lfn) { /* Create a CRC as hash value */\r | |
1990 | wc = *lfn++;\r | |
1991 | for (i = 0; i < 16; i++) {\r | |
1992 | sr = (sr << 1) + (wc & 1);\r | |
1993 | wc >>= 1;\r | |
1994 | if (sr & 0x10000) sr ^= 0x11021;\r | |
1995 | }\r | |
1996 | }\r | |
1997 | seq = (UINT)sr;\r | |
1998 | }\r | |
1999 | \r | |
2000 | /* itoa (hexdecimal) */\r | |
2001 | i = 7;\r | |
2002 | do {\r | |
2003 | c = (BYTE)((seq % 16) + '0');\r | |
2004 | if (c > '9') c += 7;\r | |
2005 | ns[i--] = c;\r | |
2006 | seq /= 16;\r | |
2007 | } while (seq);\r | |
2008 | ns[i] = '~';\r | |
2009 | \r | |
2010 | /* Append the number to the SFN body */\r | |
2011 | for (j = 0; j < i && dst[j] != ' '; j++) {\r | |
2012 | if (dbc_1st(dst[j])) {\r | |
2013 | if (j == i - 1) break;\r | |
2014 | j++;\r | |
2015 | }\r | |
2016 | }\r | |
2017 | do {\r | |
2018 | dst[j++] = (i < 8) ? ns[i++] : ' ';\r | |
2019 | } while (j < 8);\r | |
2020 | }\r | |
2021 | #endif /* FF_USE_LFN && !FF_FS_READONLY */\r | |
2022 | \r | |
2023 | \r | |
2024 | \r | |
2025 | #if FF_USE_LFN\r | |
2026 | /*-----------------------------------------------------------------------*/\r | |
2027 | /* FAT-LFN: Calculate checksum of an SFN entry */\r | |
2028 | /*-----------------------------------------------------------------------*/\r | |
2029 | \r | |
2030 | static BYTE sum_sfn (\r | |
2031 | const BYTE* dir /* Pointer to the SFN entry */\r | |
2032 | )\r | |
2033 | {\r | |
2034 | BYTE sum = 0;\r | |
2035 | UINT n = 11;\r | |
2036 | \r | |
2037 | do {\r | |
2038 | sum = (sum >> 1) + (sum << 7) + *dir++;\r | |
2039 | } while (--n);\r | |
2040 | return sum;\r | |
2041 | }\r | |
2042 | \r | |
2043 | #endif /* FF_USE_LFN */\r | |
2044 | \r | |
2045 | \r | |
2046 | \r | |
2047 | #if FF_FS_EXFAT\r | |
2048 | /*-----------------------------------------------------------------------*/\r | |
2049 | /* exFAT: Checksum */\r | |
2050 | /*-----------------------------------------------------------------------*/\r | |
2051 | \r | |
2052 | static WORD xdir_sum ( /* Get checksum of the directoly entry block */\r | |
2053 | const BYTE* dir /* Directory entry block to be calculated */\r | |
2054 | )\r | |
2055 | {\r | |
2056 | UINT i, szblk;\r | |
2057 | WORD sum;\r | |
2058 | \r | |
2059 | \r | |
2060 | szblk = (dir[XDIR_NumSec] + 1) * SZDIRE; /* Number of bytes of the entry block */\r | |
2061 | for (i = sum = 0; i < szblk; i++) {\r | |
2062 | if (i == XDIR_SetSum) { /* Skip 2-byte sum field */\r | |
2063 | i++;\r | |
2064 | } else {\r | |
2065 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i];\r | |
2066 | }\r | |
2067 | }\r | |
2068 | return sum;\r | |
2069 | }\r | |
2070 | \r | |
2071 | \r | |
2072 | \r | |
2073 | static WORD xname_sum ( /* Get check sum (to be used as hash) of the file name */\r | |
2074 | const WCHAR* name /* File name to be calculated */\r | |
2075 | )\r | |
2076 | {\r | |
2077 | WCHAR chr;\r | |
2078 | WORD sum = 0;\r | |
2079 | \r | |
2080 | \r | |
2081 | while ((chr = *name++) != 0) {\r | |
2082 | chr = (WCHAR)ff_wtoupper(chr); /* File name needs to be up-case converted */\r | |
2083 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF);\r | |
2084 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8);\r | |
2085 | }\r | |
2086 | return sum;\r | |
2087 | }\r | |
2088 | \r | |
2089 | \r | |
2090 | #if !FF_FS_READONLY && FF_USE_MKFS\r | |
2091 | static DWORD xsum32 ( /* Returns 32-bit checksum */\r | |
2092 | BYTE dat, /* Byte to be calculated (byte-by-byte processing) */\r | |
2093 | DWORD sum /* Previous sum value */\r | |
2094 | )\r | |
2095 | {\r | |
2096 | sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat;\r | |
2097 | return sum;\r | |
2098 | }\r | |
2099 | #endif\r | |
2100 | \r | |
2101 | \r | |
2102 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2\r | |
2103 | /*------------------------------------------------------*/\r | |
2104 | /* exFAT: Get object information from a directory block */\r | |
2105 | /*------------------------------------------------------*/\r | |
2106 | \r | |
2107 | static void get_xfileinfo (\r | |
2108 | BYTE* dirb, /* Pointer to the direcotry entry block 85+C0+C1s */\r | |
2109 | FILINFO* fno /* Buffer to store the extracted file information */\r | |
2110 | )\r | |
2111 | {\r | |
2112 | WCHAR wc, hs;\r | |
2113 | UINT di, si, nc;\r | |
2114 | \r | |
2115 | /* Get file name from the entry block */\r | |
2116 | si = SZDIRE * 2; /* 1st C1 entry */\r | |
2117 | nc = 0; hs = 0; di = 0;\r | |
2118 | while (nc < dirb[XDIR_NumName]) {\r | |
2119 | if (si >= MAXDIRB(FF_MAX_LFN)) { di = 0; break; } /* Truncated directory block? */\r | |
2120 | if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */\r | |
2121 | wc = ld_word(dirb + si); si += 2; nc++; /* Get a character */\r | |
2122 | if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */\r | |
2123 | hs = wc; continue; /* Get low surrogate */\r | |
2124 | }\r | |
2125 | wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in API encoding */\r | |
2126 | if (wc == 0) { di = 0; break; } /* Buffer overflow or wrong encoding? */\r | |
2127 | di += wc;\r | |
2128 | hs = 0;\r | |
2129 | }\r | |
2130 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r | |
2131 | if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object name? */\r | |
2132 | fno->fname[di] = 0; /* Terminate the name */\r | |
2133 | fno->altname[0] = 0; /* exFAT does not support SFN */\r | |
2134 | \r | |
2135 | fno->fattrib = dirb[XDIR_Attr]; /* Attribute */\r | |
2136 | fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(dirb + XDIR_FileSize); /* Size */\r | |
2137 | fno->ftime = ld_word(dirb + XDIR_ModTime + 0); /* Time */\r | |
2138 | fno->fdate = ld_word(dirb + XDIR_ModTime + 2); /* Date */\r | |
2139 | }\r | |
2140 | \r | |
2141 | #endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */\r | |
2142 | \r | |
2143 | \r | |
2144 | /*-----------------------------------*/\r | |
2145 | /* exFAT: Get a directry entry block */\r | |
2146 | /*-----------------------------------*/\r | |
2147 | \r | |
2148 | static FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */\r | |
2149 | DIR* dp /* Reading direcotry object pointing top of the entry block to load */\r | |
2150 | )\r | |
2151 | {\r | |
2152 | FRESULT res;\r | |
2153 | UINT i, sz_ent;\r | |
2154 | BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory direcotry entry block 85+C0+C1s */\r | |
2155 | \r | |
2156 | \r | |
2157 | /* Load 85 entry */\r | |
2158 | res = move_window(dp->obj.fs, dp->sect);\r | |
2159 | if (res != FR_OK) return res;\r | |
2160 | if (dp->dir[XDIR_Type] != 0x85) return FR_INT_ERR; /* Invalid order */\r | |
2161 | mem_cpy(dirb + 0 * SZDIRE, dp->dir, SZDIRE);\r | |
2162 | sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE;\r | |
2163 | if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR;\r | |
2164 | \r | |
2165 | /* Load C0 entry */\r | |
2166 | res = dir_next(dp, 0);\r | |
2167 | if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */\r | |
2168 | if (res != FR_OK) return res;\r | |
2169 | res = move_window(dp->obj.fs, dp->sect);\r | |
2170 | if (res != FR_OK) return res;\r | |
2171 | if (dp->dir[XDIR_Type] != 0xC0) return FR_INT_ERR; /* Invalid order */\r | |
2172 | mem_cpy(dirb + 1 * SZDIRE, dp->dir, SZDIRE);\r | |
2173 | if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR;\r | |
2174 | \r | |
2175 | /* Load C1 entries */\r | |
2176 | i = 2 * SZDIRE; /* C1 offset to load */\r | |
2177 | do {\r | |
2178 | res = dir_next(dp, 0);\r | |
2179 | if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */\r | |
2180 | if (res != FR_OK) return res;\r | |
2181 | res = move_window(dp->obj.fs, dp->sect);\r | |
2182 | if (res != FR_OK) return res;\r | |
2183 | if (dp->dir[XDIR_Type] != 0xC1) return FR_INT_ERR; /* Invalid order */\r | |
2184 | if (i < MAXDIRB(FF_MAX_LFN)) mem_cpy(dirb + i, dp->dir, SZDIRE);\r | |
2185 | } while ((i += SZDIRE) < sz_ent);\r | |
2186 | \r | |
2187 | /* Sanity check (do it for only accessible object) */\r | |
2188 | if (i <= MAXDIRB(FF_MAX_LFN)) {\r | |
2189 | if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR;\r | |
2190 | }\r | |
2191 | return FR_OK;\r | |
2192 | }\r | |
2193 | \r | |
2194 | \r | |
2195 | /*------------------------------------------------------------------*/\r | |
2196 | /* exFAT: Initialize object allocation info with loaded entry block */\r | |
2197 | /*------------------------------------------------------------------*/\r | |
2198 | \r | |
2199 | static void init_alloc_info (\r | |
2200 | FATFS* fs, /* Filesystem object */\r | |
2201 | FFOBJID* obj /* Object allocation information to be initialized */\r | |
2202 | )\r | |
2203 | {\r | |
2204 | obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Start cluster */\r | |
2205 | obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */\r | |
2206 | obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; /* Allocation status */\r | |
2207 | obj->n_frag = 0; /* No last fragment info */\r | |
2208 | }\r | |
2209 | \r | |
2210 | \r | |
2211 | \r | |
2212 | #if !FF_FS_READONLY || FF_FS_RPATH != 0\r | |
2213 | /*------------------------------------------------*/\r | |
2214 | /* exFAT: Load the object's directory entry block */\r | |
2215 | /*------------------------------------------------*/\r | |
2216 | \r | |
2217 | static FRESULT load_obj_xdir (\r | |
2218 | DIR* dp, /* Blank directory object to be used to access containing direcotry */\r | |
2219 | const FFOBJID* obj /* Object with its containing directory information */\r | |
2220 | )\r | |
2221 | {\r | |
2222 | FRESULT res;\r | |
2223 | \r | |
2224 | /* Open object containing directory */\r | |
2225 | dp->obj.fs = obj->fs;\r | |
2226 | dp->obj.sclust = obj->c_scl;\r | |
2227 | dp->obj.stat = (BYTE)obj->c_size;\r | |
2228 | dp->obj.objsize = obj->c_size & 0xFFFFFF00;\r | |
2229 | dp->obj.n_frag = 0;\r | |
2230 | dp->blk_ofs = obj->c_ofs;\r | |
2231 | \r | |
2232 | res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */\r | |
2233 | if (res == FR_OK) {\r | |
2234 | res = load_xdir(dp); /* Load the object's entry block */\r | |
2235 | }\r | |
2236 | return res;\r | |
2237 | }\r | |
2238 | #endif\r | |
2239 | \r | |
2240 | \r | |
2241 | #if !FF_FS_READONLY\r | |
2242 | /*----------------------------------------*/\r | |
2243 | /* exFAT: Store the directory entry block */\r | |
2244 | /*----------------------------------------*/\r | |
2245 | \r | |
2246 | static FRESULT store_xdir (\r | |
2247 | DIR* dp /* Pointer to the direcotry object */\r | |
2248 | )\r | |
2249 | {\r | |
2250 | FRESULT res;\r | |
2251 | UINT nent;\r | |
2252 | BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the direcotry entry block 85+C0+C1s */\r | |
2253 | \r | |
2254 | /* Create set sum */\r | |
2255 | st_word(dirb + XDIR_SetSum, xdir_sum(dirb));\r | |
2256 | nent = dirb[XDIR_NumSec] + 1;\r | |
2257 | \r | |
2258 | /* Store the direcotry entry block to the directory */\r | |
2259 | res = dir_sdi(dp, dp->blk_ofs);\r | |
2260 | while (res == FR_OK) {\r | |
2261 | res = move_window(dp->obj.fs, dp->sect);\r | |
2262 | if (res != FR_OK) break;\r | |
2263 | mem_cpy(dp->dir, dirb, SZDIRE);\r | |
2264 | dp->obj.fs->wflag = 1;\r | |
2265 | if (--nent == 0) break;\r | |
2266 | dirb += SZDIRE;\r | |
2267 | res = dir_next(dp, 0);\r | |
2268 | }\r | |
2269 | return (res == FR_OK || res == FR_DISK_ERR) ? res : FR_INT_ERR;\r | |
2270 | }\r | |
2271 | \r | |
2272 | \r | |
2273 | \r | |
2274 | /*-------------------------------------------*/\r | |
2275 | /* exFAT: Create a new directory enrty block */\r | |
2276 | /*-------------------------------------------*/\r | |
2277 | \r | |
2278 | static void create_xdir (\r | |
2279 | BYTE* dirb, /* Pointer to the direcotry entry block buffer */\r | |
2280 | const WCHAR* lfn /* Pointer to the object name */\r | |
2281 | )\r | |
2282 | {\r | |
2283 | UINT i;\r | |
2284 | BYTE nc1, nlen;\r | |
2285 | WCHAR wc;\r | |
2286 | \r | |
2287 | \r | |
2288 | /* Create 85,C0 entry */\r | |
2289 | mem_set(dirb, 0, 2 * SZDIRE);\r | |
2290 | dirb[0 * SZDIRE + XDIR_Type] = 0x85; /* 85 entry */\r | |
2291 | dirb[1 * SZDIRE + XDIR_Type] = 0xC0; /* C0 entry */\r | |
2292 | \r | |
2293 | /* Create C1 entries */\r | |
2294 | i = SZDIRE * 2; /* Top of C1 entries */\r | |
2295 | nlen = nc1 = 0; wc = 1;\r | |
2296 | do {\r | |
2297 | dirb[i++] = 0xC1; dirb[i++] = 0; /* Entry type C1 */\r | |
2298 | do { /* Fill name field */\r | |
2299 | if (wc != 0 && (wc = lfn[nlen]) != 0) nlen++; /* Get a character if exist */\r | |
2300 | st_word(dirb + i, wc); /* Store it */\r | |
2301 | i += 2;\r | |
2302 | } while (i % SZDIRE != 0);\r | |
2303 | nc1++;\r | |
2304 | } while (lfn[nlen]); /* Fill next entry if any char follows */\r | |
2305 | \r | |
2306 | dirb[XDIR_NumName] = nlen; /* Set name length */\r | |
2307 | dirb[XDIR_NumSec] = 1 + nc1; /* Set secondary count (C0 + C1s) */\r | |
2308 | st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */\r | |
2309 | }\r | |
2310 | \r | |
2311 | #endif /* !FF_FS_READONLY */\r | |
2312 | #endif /* FF_FS_EXFAT */\r | |
2313 | \r | |
2314 | \r | |
2315 | \r | |
2316 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT\r | |
2317 | /*-----------------------------------------------------------------------*/\r | |
2318 | /* Read an object from the directory */\r | |
2319 | /*-----------------------------------------------------------------------*/\r | |
2320 | \r | |
2321 | #define dir_read_file(dp) dir_read(dp, 0)\r | |
2322 | #define dir_read_label(dp) dir_read(dp, 1)\r | |
2323 | \r | |
2324 | static FRESULT dir_read (\r | |
2325 | DIR* dp, /* Pointer to the directory object */\r | |
2326 | int vol /* Filtered by 0:file/directory or 1:volume label */\r | |
2327 | )\r | |
2328 | {\r | |
2329 | FRESULT res = FR_NO_FILE;\r | |
2330 | FATFS *fs = dp->obj.fs;\r | |
2331 | BYTE a, c;\r | |
2332 | #if FF_USE_LFN\r | |
2333 | BYTE ord = 0xFF, sum = 0xFF;\r | |
2334 | #endif\r | |
2335 | \r | |
2336 | while (dp->sect) {\r | |
2337 | res = move_window(fs, dp->sect);\r | |
2338 | if (res != FR_OK) break;\r | |
2339 | c = dp->dir[DIR_Name]; /* Test for the entry type */\r | |
2340 | if (c == 0) {\r | |
2341 | res = FR_NO_FILE; break; /* Reached to end of the directory */\r | |
2342 | }\r | |
2343 | #if FF_FS_EXFAT\r | |
2344 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
2345 | if (FF_USE_LABEL && vol) {\r | |
2346 | if (c == 0x83) break; /* Volume label entry? */\r | |
2347 | } else {\r | |
2348 | if (c == 0x85) { /* Start of the file entry block? */\r | |
2349 | dp->blk_ofs = dp->dptr; /* Get location of the block */\r | |
2350 | res = load_xdir(dp); /* Load the entry block */\r | |
2351 | if (res == FR_OK) {\r | |
2352 | dp->obj.attr = fs->dirbuf[XDIR_Attr] & AM_MASK; /* Get attribute */\r | |
2353 | }\r | |
2354 | break;\r | |
2355 | }\r | |
2356 | }\r | |
2357 | } else\r | |
2358 | #endif\r | |
2359 | { /* On the FAT/FAT32 volume */\r | |
2360 | dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */\r | |
2361 | #if FF_USE_LFN /* LFN configuration */\r | |
2362 | if (c == DDEM || c == '.' || (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */\r | |
2363 | ord = 0xFF;\r | |
2364 | } else {\r | |
2365 | if (a == AM_LFN) { /* An LFN entry is found */\r | |
2366 | if (c & LLEF) { /* Is it start of an LFN sequence? */\r | |
2367 | sum = dp->dir[LDIR_Chksum];\r | |
2368 | c &= (BYTE)~LLEF; ord = c;\r | |
2369 | dp->blk_ofs = dp->dptr;\r | |
2370 | }\r | |
2371 | /* Check LFN validity and capture it */\r | |
2372 | ord = (c == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;\r | |
2373 | } else { /* An SFN entry is found */\r | |
2374 | if (ord != 0 || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */\r | |
2375 | dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */\r | |
2376 | }\r | |
2377 | break;\r | |
2378 | }\r | |
2379 | }\r | |
2380 | #else /* Non LFN configuration */\r | |
2381 | if (c != DDEM && c != '.' && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) { /* Is it a valid entry? */\r | |
2382 | break;\r | |
2383 | }\r | |
2384 | #endif\r | |
2385 | }\r | |
2386 | res = dir_next(dp, 0); /* Next entry */\r | |
2387 | if (res != FR_OK) break;\r | |
2388 | }\r | |
2389 | \r | |
2390 | if (res != FR_OK) dp->sect = 0; /* Terminate the read operation on error or EOT */\r | |
2391 | return res;\r | |
2392 | }\r | |
2393 | \r | |
2394 | #endif /* FF_FS_MINIMIZE <= 1 || FF_USE_LABEL || FF_FS_RPATH >= 2 */\r | |
2395 | \r | |
2396 | \r | |
2397 | \r | |
2398 | /*-----------------------------------------------------------------------*/\r | |
2399 | /* Directory handling - Find an object in the directory */\r | |
2400 | /*-----------------------------------------------------------------------*/\r | |
2401 | \r | |
2402 | static FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */\r | |
2403 | DIR* dp /* Pointer to the directory object with the file name */\r | |
2404 | )\r | |
2405 | {\r | |
2406 | FRESULT res;\r | |
2407 | FATFS *fs = dp->obj.fs;\r | |
2408 | BYTE c;\r | |
2409 | #if FF_USE_LFN\r | |
2410 | BYTE a, ord, sum;\r | |
2411 | #endif\r | |
2412 | \r | |
2413 | res = dir_sdi(dp, 0); /* Rewind directory object */\r | |
2414 | if (res != FR_OK) return res;\r | |
2415 | #if FF_FS_EXFAT\r | |
2416 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
2417 | BYTE nc;\r | |
2418 | UINT di, ni;\r | |
2419 | WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */\r | |
2420 | \r | |
2421 | while ((res = dir_read_file(dp)) == FR_OK) { /* Read an item */\r | |
2422 | #if FF_MAX_LFN < 255\r | |
2423 | if (fs->dirbuf[XDIR_NumName] > FF_MAX_LFN) continue; /* Skip comparison if inaccessible object name */\r | |
2424 | #endif\r | |
2425 | if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */\r | |
2426 | for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */\r | |
2427 | if ((di % SZDIRE) == 0) di += 2;\r | |
2428 | if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break;\r | |
2429 | }\r | |
2430 | if (nc == 0 && !fs->lfnbuf[ni]) break; /* Name matched? */\r | |
2431 | }\r | |
2432 | return res;\r | |
2433 | }\r | |
2434 | #endif\r | |
2435 | /* On the FAT/FAT32 volume */\r | |
2436 | #if FF_USE_LFN\r | |
2437 | ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r | |
2438 | #endif\r | |
2439 | do {\r | |
2440 | res = move_window(fs, dp->sect);\r | |
2441 | if (res != FR_OK) break;\r | |
2442 | c = dp->dir[DIR_Name];\r | |
2443 | if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */\r | |
2444 | #if FF_USE_LFN /* LFN configuration */\r | |
2445 | dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK;\r | |
2446 | if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */\r | |
2447 | ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r | |
2448 | } else {\r | |
2449 | if (a == AM_LFN) { /* An LFN entry is found */\r | |
2450 | if (!(dp->fn[NSFLAG] & NS_NOLFN)) {\r | |
2451 | if (c & LLEF) { /* Is it start of LFN sequence? */\r | |
2452 | sum = dp->dir[LDIR_Chksum];\r | |
2453 | c &= (BYTE)~LLEF; ord = c; /* LFN start order */\r | |
2454 | dp->blk_ofs = dp->dptr; /* Start offset of LFN */\r | |
2455 | }\r | |
2456 | /* Check validity of the LFN entry and compare it with given name */\r | |
2457 | ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;\r | |
2458 | }\r | |
2459 | } else { /* An SFN entry is found */\r | |
2460 | if (ord == 0 && sum == sum_sfn(dp->dir)) break; /* LFN matched? */\r | |
2461 | if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */\r | |
2462 | ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r | |
2463 | }\r | |
2464 | }\r | |
2465 | #else /* Non LFN configuration */\r | |
2466 | dp->obj.attr = dp->dir[DIR_Attr] & AM_MASK;\r | |
2467 | if (!(dp->dir[DIR_Attr] & AM_VOL) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* Is it a valid entry? */\r | |
2468 | #endif\r | |
2469 | res = dir_next(dp, 0); /* Next entry */\r | |
2470 | } while (res == FR_OK);\r | |
2471 | \r | |
2472 | return res;\r | |
2473 | }\r | |
2474 | \r | |
2475 | \r | |
2476 | \r | |
2477 | \r | |
2478 | #if !FF_FS_READONLY\r | |
2479 | /*-----------------------------------------------------------------------*/\r | |
2480 | /* Register an object to the directory */\r | |
2481 | /*-----------------------------------------------------------------------*/\r | |
2482 | \r | |
2483 | static FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */\r | |
2484 | DIR* dp /* Target directory with object name to be created */\r | |
2485 | )\r | |
2486 | {\r | |
2487 | FRESULT res;\r | |
2488 | FATFS *fs = dp->obj.fs;\r | |
2489 | #if FF_USE_LFN /* LFN configuration */\r | |
2490 | UINT n, nlen, nent;\r | |
2491 | BYTE sn[12], sum;\r | |
2492 | \r | |
2493 | \r | |
2494 | if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */\r | |
2495 | for (nlen = 0; fs->lfnbuf[nlen]; nlen++) ; /* Get lfn length */\r | |
2496 | \r | |
2497 | #if FF_FS_EXFAT\r | |
2498 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
2499 | nent = (nlen + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */\r | |
2500 | res = dir_alloc(dp, nent); /* Allocate entries */\r | |
2501 | if (res != FR_OK) return res;\r | |
2502 | dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set the allocated entry block offset */\r | |
2503 | \r | |
2504 | if (dp->obj.stat & 4) { /* Has the directory been stretched? */\r | |
2505 | dp->obj.stat &= ~4;\r | |
2506 | res = fill_first_frag(&dp->obj); /* Fill the first fragment on the FAT if needed */\r | |
2507 | if (res != FR_OK) return res;\r | |
2508 | res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill the last fragment on the FAT if needed */\r | |
2509 | if (res != FR_OK) return res;\r | |
2510 | if (dp->obj.sclust != 0) { /* Is it a sub directory? */\r | |
2511 | DIR dj;\r | |
2512 | \r | |
2513 | res = load_obj_xdir(&dj, &dp->obj); /* Load the object status */\r | |
2514 | if (res != FR_OK) return res;\r | |
2515 | dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */\r | |
2516 | st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); /* Update the allocation status */\r | |
2517 | st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize);\r | |
2518 | fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1;\r | |
2519 | res = store_xdir(&dj); /* Store the object status */\r | |
2520 | if (res != FR_OK) return res;\r | |
2521 | }\r | |
2522 | }\r | |
2523 | \r | |
2524 | create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */\r | |
2525 | return FR_OK;\r | |
2526 | }\r | |
2527 | #endif\r | |
2528 | /* On the FAT/FAT32 volume */\r | |
2529 | mem_cpy(sn, dp->fn, 12);\r | |
2530 | if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */\r | |
2531 | dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */\r | |
2532 | for (n = 1; n < 100; n++) {\r | |
2533 | gen_numname(dp->fn, sn, fs->lfnbuf, n); /* Generate a numbered name */\r | |
2534 | res = dir_find(dp); /* Check if the name collides with existing SFN */\r | |
2535 | if (res != FR_OK) break;\r | |
2536 | }\r | |
2537 | if (n == 100) return FR_DENIED; /* Abort if too many collisions */\r | |
2538 | if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */\r | |
2539 | dp->fn[NSFLAG] = sn[NSFLAG];\r | |
2540 | }\r | |
2541 | \r | |
2542 | /* Create an SFN with/without LFNs. */\r | |
2543 | nent = (sn[NSFLAG] & NS_LFN) ? (nlen + 12) / 13 + 1 : 1; /* Number of entries to allocate */\r | |
2544 | res = dir_alloc(dp, nent); /* Allocate entries */\r | |
2545 | if (res == FR_OK && --nent) { /* Set LFN entry if needed */\r | |
2546 | res = dir_sdi(dp, dp->dptr - nent * SZDIRE);\r | |
2547 | if (res == FR_OK) {\r | |
2548 | sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */\r | |
2549 | do { /* Store LFN entries in bottom first */\r | |
2550 | res = move_window(fs, dp->sect);\r | |
2551 | if (res != FR_OK) break;\r | |
2552 | put_lfn(fs->lfnbuf, dp->dir, (BYTE)nent, sum);\r | |
2553 | fs->wflag = 1;\r | |
2554 | res = dir_next(dp, 0); /* Next entry */\r | |
2555 | } while (res == FR_OK && --nent);\r | |
2556 | }\r | |
2557 | }\r | |
2558 | \r | |
2559 | #else /* Non LFN configuration */\r | |
2560 | res = dir_alloc(dp, 1); /* Allocate an entry for SFN */\r | |
2561 | \r | |
2562 | #endif\r | |
2563 | \r | |
2564 | /* Set SFN entry */\r | |
2565 | if (res == FR_OK) {\r | |
2566 | res = move_window(fs, dp->sect);\r | |
2567 | if (res == FR_OK) {\r | |
2568 | mem_set(dp->dir, 0, SZDIRE); /* Clean the entry */\r | |
2569 | mem_cpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */\r | |
2570 | #if FF_USE_LFN\r | |
2571 | dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */\r | |
2572 | #endif\r | |
2573 | fs->wflag = 1;\r | |
2574 | }\r | |
2575 | }\r | |
2576 | \r | |
2577 | return res;\r | |
2578 | }\r | |
2579 | \r | |
2580 | #endif /* !FF_FS_READONLY */\r | |
2581 | \r | |
2582 | \r | |
2583 | \r | |
2584 | #if !FF_FS_READONLY && FF_FS_MINIMIZE == 0\r | |
2585 | /*-----------------------------------------------------------------------*/\r | |
2586 | /* Remove an object from the directory */\r | |
2587 | /*-----------------------------------------------------------------------*/\r | |
2588 | \r | |
2589 | static FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */\r | |
2590 | DIR* dp /* Directory object pointing the entry to be removed */\r | |
2591 | )\r | |
2592 | {\r | |
2593 | FRESULT res;\r | |
2594 | FATFS *fs = dp->obj.fs;\r | |
2595 | #if FF_USE_LFN /* LFN configuration */\r | |
2596 | DWORD last = dp->dptr;\r | |
2597 | \r | |
2598 | res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */\r | |
2599 | if (res == FR_OK) {\r | |
2600 | do {\r | |
2601 | res = move_window(fs, dp->sect);\r | |
2602 | if (res != FR_OK) break;\r | |
2603 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
2604 | dp->dir[XDIR_Type] &= 0x7F; /* Clear the entry InUse flag. */\r | |
2605 | } else { /* On the FAT/FAT32 volume */\r | |
2606 | dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'. */\r | |
2607 | }\r | |
2608 | fs->wflag = 1;\r | |
2609 | if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */\r | |
2610 | res = dir_next(dp, 0); /* Next entry */\r | |
2611 | } while (res == FR_OK);\r | |
2612 | if (res == FR_NO_FILE) res = FR_INT_ERR;\r | |
2613 | }\r | |
2614 | #else /* Non LFN configuration */\r | |
2615 | \r | |
2616 | res = move_window(fs, dp->sect);\r | |
2617 | if (res == FR_OK) {\r | |
2618 | dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'.*/\r | |
2619 | fs->wflag = 1;\r | |
2620 | }\r | |
2621 | #endif\r | |
2622 | \r | |
2623 | return res;\r | |
2624 | }\r | |
2625 | \r | |
2626 | #endif /* !FF_FS_READONLY && FF_FS_MINIMIZE == 0 */\r | |
2627 | \r | |
2628 | \r | |
2629 | \r | |
2630 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2\r | |
2631 | /*-----------------------------------------------------------------------*/\r | |
2632 | /* Get file information from directory entry */\r | |
2633 | /*-----------------------------------------------------------------------*/\r | |
2634 | \r | |
2635 | static void get_fileinfo (\r | |
2636 | DIR* dp, /* Pointer to the directory object */\r | |
2637 | FILINFO* fno /* Pointer to the file information to be filled */\r | |
2638 | )\r | |
2639 | {\r | |
2640 | UINT si, di;\r | |
2641 | #if FF_USE_LFN\r | |
2642 | WCHAR wc, hs;\r | |
2643 | FATFS *fs = dp->obj.fs;\r | |
2644 | #else\r | |
2645 | TCHAR c;\r | |
2646 | #endif\r | |
2647 | \r | |
2648 | \r | |
2649 | fno->fname[0] = 0; /* Invaidate file info */\r | |
2650 | if (dp->sect == 0) return; /* Exit if read pointer has reached end of directory */\r | |
2651 | \r | |
2652 | #if FF_USE_LFN /* LFN configuration */\r | |
2653 | #if FF_FS_EXFAT\r | |
2654 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
2655 | get_xfileinfo(fs->dirbuf, fno);\r | |
2656 | return;\r | |
2657 | } else\r | |
2658 | #endif\r | |
2659 | { /* On the FAT/FAT32 volume */\r | |
2660 | if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */\r | |
2661 | si = di = hs = 0;\r | |
2662 | while (fs->lfnbuf[si] != 0) {\r | |
2663 | wc = fs->lfnbuf[si++]; /* Get an LFN character (UTF-16) */\r | |
2664 | if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */\r | |
2665 | hs = wc; continue; /* Get low surrogate */\r | |
2666 | }\r | |
2667 | wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in UTF-16 or UTF-8 encoding */\r | |
2668 | if (wc == 0) { di = 0; break; } /* Invalid char or buffer overflow? */\r | |
2669 | di += wc;\r | |
2670 | hs = 0;\r | |
2671 | }\r | |
2672 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r | |
2673 | fno->fname[di] = 0; /* Terminate the LFN (null string means LFN is invalid) */\r | |
2674 | }\r | |
2675 | }\r | |
2676 | \r | |
2677 | si = di = 0;\r | |
2678 | while (si < 11) { /* Get SFN from SFN entry */\r | |
2679 | wc = dp->dir[si++]; /* Get a char */\r | |
2680 | if (wc == ' ') continue; /* Skip padding spaces */\r | |
2681 | if (wc == RDDEM) wc = DDEM; /* Restore replaced DDEM character */\r | |
2682 | if (si == 9 && di < FF_SFN_BUF) fno->altname[di++] = '.'; /* Insert a . if extension is exist */\r | |
2683 | #if FF_LFN_UNICODE >= 1 /* Unicode output */\r | |
2684 | if (dbc_1st((BYTE)wc) && si != 8 && si != 11 && dbc_2nd(dp->dir[si])) { /* Make a DBC if needed */\r | |
2685 | wc = wc << 8 | dp->dir[si++];\r | |
2686 | }\r | |
2687 | wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM -> Unicode */\r | |
2688 | if (wc == 0) { di = 0; break; } /* Wrong char in the current code page? */\r | |
2689 | wc = put_utf(wc, &fno->altname[di], FF_SFN_BUF - di); /* Store it in Unicode */\r | |
2690 | if (wc == 0) { di = 0; break; } /* Buffer overflow? */\r | |
2691 | di += wc;\r | |
2692 | #else /* ANSI/OEM output */\r | |
2693 | fno->altname[di++] = (TCHAR)wc; /* Store it without any conversion */\r | |
2694 | #endif\r | |
2695 | }\r | |
2696 | fno->altname[di] = 0; /* Terminate the SFN (null string means SFN is invalid) */\r | |
2697 | \r | |
2698 | if (fno->fname[0] == 0) { /* If LFN is invalid, altname[] needs to be copied to fname[] */\r | |
2699 | if (di == 0) { /* If LFN and SFN both are invalid, this object is inaccesible */\r | |
2700 | fno->fname[di++] = '?';\r | |
2701 | } else {\r | |
2702 | for (si = di = 0; fno->altname[si]; si++, di++) { /* Copy altname[] to fname[] with case information */\r | |
2703 | wc = (WCHAR)fno->altname[si];\r | |
2704 | if (IsUpper(wc) && (dp->dir[DIR_NTres] & ((si >= 9) ? NS_EXT : NS_BODY))) wc += 0x20;\r | |
2705 | fno->fname[di] = (TCHAR)wc;\r | |
2706 | }\r | |
2707 | }\r | |
2708 | fno->fname[di] = 0; /* Terminate the LFN */\r | |
2709 | if (!dp->dir[DIR_NTres]) fno->altname[0] = 0; /* Altname is not needed if neither LFN nor case info is exist. */\r | |
2710 | }\r | |
2711 | \r | |
2712 | #else /* Non-LFN configuration */\r | |
2713 | si = di = 0;\r | |
2714 | while (si < 11) { /* Copy name body and extension */\r | |
2715 | c = (TCHAR)dp->dir[si++];\r | |
2716 | if (c == ' ') continue; /* Skip padding spaces */\r | |
2717 | if (c == RDDEM) c = DDEM; /* Restore replaced DDEM character */\r | |
2718 | if (si == 9) fno->fname[di++] = '.';/* Insert a . if extension is exist */\r | |
2719 | fno->fname[di++] = c;\r | |
2720 | }\r | |
2721 | fno->fname[di] = 0;\r | |
2722 | #endif\r | |
2723 | \r | |
2724 | fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */\r | |
2725 | fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */\r | |
2726 | fno->ftime = ld_word(dp->dir + DIR_ModTime + 0); /* Time */\r | |
2727 | fno->fdate = ld_word(dp->dir + DIR_ModTime + 2); /* Date */\r | |
2728 | }\r | |
2729 | \r | |
2730 | #endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */\r | |
2731 | \r | |
2732 | \r | |
2733 | \r | |
2734 | #if FF_USE_FIND && FF_FS_MINIMIZE <= 1\r | |
2735 | /*-----------------------------------------------------------------------*/\r | |
2736 | /* Pattern matching */\r | |
2737 | /*-----------------------------------------------------------------------*/\r | |
2738 | \r | |
2739 | static DWORD get_achar ( /* Get a character and advances ptr */\r | |
2740 | const TCHAR** ptr /* Pointer to pointer to the ANSI/OEM or Unicode string */\r | |
2741 | )\r | |
2742 | {\r | |
2743 | DWORD chr;\r | |
2744 | \r | |
2745 | \r | |
2746 | #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode input */\r | |
2747 | chr = tchar2uni(ptr);\r | |
2748 | if (chr == 0xFFFFFFFF) chr = 0; /* Wrong UTF encoding is recognized as end of the string */\r | |
2749 | chr = ff_wtoupper(chr);\r | |
2750 | \r | |
2751 | #else /* ANSI/OEM input */\r | |
2752 | chr = (BYTE)*(*ptr)++; /* Get a byte */\r | |
2753 | if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */\r | |
2754 | #if FF_CODE_PAGE == 0\r | |
2755 | if (ExCvt && chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */\r | |
2756 | #elif FF_CODE_PAGE < 900\r | |
2757 | if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */\r | |
2758 | #endif\r | |
2759 | #if FF_CODE_PAGE == 0 || FF_CODE_PAGE >= 900\r | |
2760 | if (dbc_1st((BYTE)chr)) { /* Get DBC 2nd byte if needed */\r | |
2761 | chr = dbc_2nd((BYTE)**ptr) ? chr << 8 | (BYTE)*(*ptr)++ : 0;\r | |
2762 | }\r | |
2763 | #endif\r | |
2764 | \r | |
2765 | #endif\r | |
2766 | return chr;\r | |
2767 | }\r | |
2768 | \r | |
2769 | \r | |
2770 | static int pattern_matching ( /* 0:not matched, 1:matched */\r | |
2771 | const TCHAR* pat, /* Matching pattern */\r | |
2772 | const TCHAR* nam, /* String to be tested */\r | |
2773 | int skip, /* Number of pre-skip chars (number of ?s) */\r | |
2774 | int inf /* Infinite search (* specified) */\r | |
2775 | )\r | |
2776 | {\r | |
2777 | const TCHAR *pp, *np;\r | |
2778 | DWORD pc, nc;\r | |
2779 | int nm, nx;\r | |
2780 | \r | |
2781 | \r | |
2782 | while (skip--) { /* Pre-skip name chars */\r | |
2783 | if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */\r | |
2784 | }\r | |
2785 | if (*pat == 0 && inf) return 1; /* (short circuit) */\r | |
2786 | \r | |
2787 | do {\r | |
2788 | pp = pat; np = nam; /* Top of pattern and name to match */\r | |
2789 | for (;;) {\r | |
2790 | if (*pp == '?' || *pp == '*') { /* Wildcard? */\r | |
2791 | nm = nx = 0;\r | |
2792 | do { /* Analyze the wildcard block */\r | |
2793 | if (*pp++ == '?') nm++; else nx = 1;\r | |
2794 | } while (*pp == '?' || *pp == '*');\r | |
2795 | if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */\r | |
2796 | nc = *np; break; /* Branch mismatched */\r | |
2797 | }\r | |
2798 | pc = get_achar(&pp); /* Get a pattern char */\r | |
2799 | nc = get_achar(&np); /* Get a name char */\r | |
2800 | if (pc != nc) break; /* Branch mismatched? */\r | |
2801 | if (pc == 0) return 1; /* Branch matched? (matched at end of both strings) */\r | |
2802 | }\r | |
2803 | get_achar(&nam); /* nam++ */\r | |
2804 | } while (inf && nc); /* Retry until end of name if infinite search is specified */\r | |
2805 | \r | |
2806 | return 0;\r | |
2807 | }\r | |
2808 | \r | |
2809 | #endif /* FF_USE_FIND && FF_FS_MINIMIZE <= 1 */\r | |
2810 | \r | |
2811 | \r | |
2812 | \r | |
2813 | /*-----------------------------------------------------------------------*/\r | |
2814 | /* Pick a top segment and create the object name in directory form */\r | |
2815 | /*-----------------------------------------------------------------------*/\r | |
2816 | \r | |
2817 | static FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */\r | |
2818 | DIR* dp, /* Pointer to the directory object */\r | |
2819 | const TCHAR** path /* Pointer to pointer to the segment in the path string */\r | |
2820 | )\r | |
2821 | {\r | |
2822 | #if FF_USE_LFN /* LFN configuration */\r | |
2823 | BYTE b, cf;\r | |
2824 | WCHAR wc, *lfn;\r | |
2825 | DWORD uc;\r | |
2826 | UINT i, ni, si, di;\r | |
2827 | const TCHAR *p;\r | |
2828 | \r | |
2829 | \r | |
2830 | /* Create LFN into LFN working buffer */\r | |
2831 | p = *path; lfn = dp->obj.fs->lfnbuf; di = 0;\r | |
2832 | for (;;) {\r | |
2833 | uc = tchar2uni(&p); /* Get a character */\r | |
2834 | if (uc == 0xFFFFFFFF) return FR_INVALID_NAME; /* Invalid code or UTF decode error */\r | |
2835 | if (uc >= 0x10000) lfn[di++] = (WCHAR)(uc >> 16); /* Store high surrogate if needed */\r | |
2836 | wc = (WCHAR)uc;\r | |
2837 | if (wc < ' ' || wc == '/' || wc == '\\') break; /* Break if end of the path or a separator is found */\r | |
2838 | if (wc < 0x80 && chk_chr("\"*:<>\?|\x7F", wc)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */\r | |
2839 | if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */\r | |
2840 | lfn[di++] = wc; /* Store the Unicode character */\r | |
2841 | }\r | |
2842 | while (*p == '/' || *p == '\\') p++; /* Skip duplicated separators if exist */\r | |
2843 | *path = p; /* Return pointer to the next segment */\r | |
2844 | cf = (wc < ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */\r | |
2845 | \r | |
2846 | #if FF_FS_RPATH != 0\r | |
2847 | if ((di == 1 && lfn[di - 1] == '.') ||\r | |
2848 | (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */\r | |
2849 | lfn[di] = 0;\r | |
2850 | for (i = 0; i < 11; i++) { /* Create dot name for SFN entry */\r | |
2851 | dp->fn[i] = (i < di) ? '.' : ' ';\r | |
2852 | }\r | |
2853 | dp->fn[i] = cf | NS_DOT; /* This is a dot entry */\r | |
2854 | return FR_OK;\r | |
2855 | }\r | |
2856 | #endif\r | |
2857 | while (di) { /* Snip off trailing spaces and dots if exist */\r | |
2858 | wc = lfn[di - 1];\r | |
2859 | if (wc != ' ' && wc != '.') break;\r | |
2860 | di--;\r | |
2861 | }\r | |
2862 | lfn[di] = 0; /* LFN is created into the working buffer */\r | |
2863 | if (di == 0) return FR_INVALID_NAME; /* Reject null name */\r | |
2864 | \r | |
2865 | /* Create SFN in directory form */\r | |
2866 | for (si = 0; lfn[si] == ' '; si++) ; /* Remove leading spaces */\r | |
2867 | if (si > 0 || lfn[si] == '.') cf |= NS_LOSS | NS_LFN; /* Is there any leading space or dot? */\r | |
2868 | while (di > 0 && lfn[di - 1] != '.') di--; /* Find last dot (di<=si: no extension) */\r | |
2869 | \r | |
2870 | mem_set(dp->fn, ' ', 11);\r | |
2871 | i = b = 0; ni = 8;\r | |
2872 | for (;;) {\r | |
2873 | wc = lfn[si++]; /* Get an LFN character */\r | |
2874 | if (wc == 0) break; /* Break on end of the LFN */\r | |
2875 | if (wc == ' ' || (wc == '.' && si != di)) { /* Remove embedded spaces and dots */\r | |
2876 | cf |= NS_LOSS | NS_LFN;\r | |
2877 | continue;\r | |
2878 | }\r | |
2879 | \r | |
2880 | if (i >= ni || si == di) { /* End of field? */\r | |
2881 | if (ni == 11) { /* Name extension overflow? */\r | |
2882 | cf |= NS_LOSS | NS_LFN;\r | |
2883 | break;\r | |
2884 | }\r | |
2885 | if (si != di) cf |= NS_LOSS | NS_LFN; /* Name body overflow? */\r | |
2886 | if (si > di) break; /* No name extension? */\r | |
2887 | si = di; i = 8; ni = 11; b <<= 2; /* Enter name extension */\r | |
2888 | continue;\r | |
2889 | }\r | |
2890 | \r | |
2891 | if (wc >= 0x80) { /* Is this a non-ASCII character? */\r | |
2892 | cf |= NS_LFN; /* LFN entry needs to be created */\r | |
2893 | #if FF_CODE_PAGE == 0\r | |
2894 | if (ExCvt) { /* At SBCS */\r | |
2895 | wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */\r | |
2896 | if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */\r | |
2897 | } else { /* At DBCS */\r | |
2898 | wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */\r | |
2899 | }\r | |
2900 | #elif FF_CODE_PAGE < 900 /* SBCS cfg */\r | |
2901 | wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */\r | |
2902 | if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */\r | |
2903 | #else /* DBCS cfg */\r | |
2904 | wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */\r | |
2905 | #endif\r | |
2906 | }\r | |
2907 | \r | |
2908 | if (wc >= 0x100) { /* Is this a DBC? */\r | |
2909 | if (i >= ni - 1) { /* Field overflow? */\r | |
2910 | cf |= NS_LOSS | NS_LFN;\r | |
2911 | i = ni; continue; /* Next field */\r | |
2912 | }\r | |
2913 | dp->fn[i++] = (BYTE)(wc >> 8); /* Put 1st byte */\r | |
2914 | } else { /* SBC */\r | |
2915 | if (wc == 0 || chk_chr("+,;=[]", wc)) { /* Replace illegal characters for SFN if needed */\r | |
2916 | wc = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */\r | |
2917 | } else {\r | |
2918 | if (IsUpper(wc)) { /* ASCII upper case? */\r | |
2919 | b |= 2;\r | |
2920 | }\r | |
2921 | if (IsLower(wc)) { /* ASCII lower case? */\r | |
2922 | b |= 1; wc -= 0x20;\r | |
2923 | }\r | |
2924 | }\r | |
2925 | }\r | |
2926 | dp->fn[i++] = (BYTE)wc;\r | |
2927 | }\r | |
2928 | \r | |
2929 | if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */\r | |
2930 | \r | |
2931 | if (ni == 8) b <<= 2; /* Shift capital flags if no extension */\r | |
2932 | if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* LFN entry needs to be created if composite capitals */\r | |
2933 | if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */\r | |
2934 | if (b & 0x01) cf |= NS_EXT; /* NT flag (Extension has small capital letters only) */\r | |
2935 | if (b & 0x04) cf |= NS_BODY; /* NT flag (Body has small capital letters only) */\r | |
2936 | }\r | |
2937 | \r | |
2938 | dp->fn[NSFLAG] = cf; /* SFN is created into dp->fn[] */\r | |
2939 | \r | |
2940 | return FR_OK;\r | |
2941 | \r | |
2942 | \r | |
2943 | #else /* FF_USE_LFN : Non-LFN configuration */\r | |
2944 | BYTE c, d, *sfn;\r | |
2945 | UINT ni, si, i;\r | |
2946 | const char *p;\r | |
2947 | \r | |
2948 | /* Create file name in directory form */\r | |
2949 | p = *path; sfn = dp->fn;\r | |
2950 | mem_set(sfn, ' ', 11);\r | |
2951 | si = i = 0; ni = 8;\r | |
2952 | #if FF_FS_RPATH != 0\r | |
2953 | if (p[si] == '.') { /* Is this a dot entry? */\r | |
2954 | for (;;) {\r | |
2955 | c = (BYTE)p[si++];\r | |
2956 | if (c != '.' || si >= 3) break;\r | |
2957 | sfn[i++] = c;\r | |
2958 | }\r | |
2959 | if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;\r | |
2960 | *path = p + si; /* Return pointer to the next segment */\r | |
2961 | sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of the path */\r | |
2962 | return FR_OK;\r | |
2963 | }\r | |
2964 | #endif\r | |
2965 | for (;;) {\r | |
2966 | c = (BYTE)p[si++]; /* Get a byte */\r | |
2967 | if (c <= ' ') break; /* Break if end of the path name */\r | |
2968 | if (c == '/' || c == '\\') { /* Break if a separator is found */\r | |
2969 | while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */\r | |
2970 | break;\r | |
2971 | }\r | |
2972 | if (c == '.' || i >= ni) { /* End of body or field overflow? */\r | |
2973 | if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Field overflow or invalid dot? */\r | |
2974 | i = 8; ni = 11; /* Enter file extension field */\r | |
2975 | continue;\r | |
2976 | }\r | |
2977 | #if FF_CODE_PAGE == 0\r | |
2978 | if (ExCvt && c >= 0x80) { /* Is SBC extended character? */\r | |
2979 | c = ExCvt[c & 0x7F]; /* To upper SBC extended character */\r | |
2980 | }\r | |
2981 | #elif FF_CODE_PAGE < 900\r | |
2982 | if (c >= 0x80) { /* Is SBC extended character? */\r | |
2983 | c = ExCvt[c & 0x7F]; /* To upper SBC extended character */\r | |
2984 | }\r | |
2985 | #endif\r | |
2986 | if (dbc_1st(c)) { /* Check if it is a DBC 1st byte */\r | |
2987 | d = (BYTE)p[si++]; /* Get 2nd byte */\r | |
2988 | if (!dbc_2nd(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */\r | |
2989 | sfn[i++] = c;\r | |
2990 | sfn[i++] = d;\r | |
2991 | } else { /* SBC */\r | |
2992 | if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) return FR_INVALID_NAME; /* Reject illegal chrs for SFN */\r | |
2993 | if (IsLower(c)) c -= 0x20; /* To upper */\r | |
2994 | sfn[i++] = c;\r | |
2995 | }\r | |
2996 | }\r | |
2997 | *path = p + si; /* Return pointer to the next segment */\r | |
2998 | if (i == 0) return FR_INVALID_NAME; /* Reject nul string */\r | |
2999 | \r | |
3000 | if (sfn[0] == DDEM) sfn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */\r | |
3001 | sfn[NSFLAG] = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */\r | |
3002 | \r | |
3003 | return FR_OK;\r | |
3004 | #endif /* FF_USE_LFN */\r | |
3005 | }\r | |
3006 | \r | |
3007 | \r | |
3008 | \r | |
3009 | \r | |
3010 | /*-----------------------------------------------------------------------*/\r | |
3011 | /* Follow a file path */\r | |
3012 | /*-----------------------------------------------------------------------*/\r | |
3013 | \r | |
3014 | static FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */\r | |
3015 | DIR* dp, /* Directory object to return last directory and found object */\r | |
3016 | const TCHAR* path /* Full-path string to find a file or directory */\r | |
3017 | )\r | |
3018 | {\r | |
3019 | FRESULT res;\r | |
3020 | BYTE ns;\r | |
3021 | FATFS *fs = dp->obj.fs;\r | |
3022 | \r | |
3023 | \r | |
3024 | #if FF_FS_RPATH != 0\r | |
3025 | if (*path != '/' && *path != '\\') { /* Without heading separator */\r | |
3026 | dp->obj.sclust = fs->cdir; /* Start from current directory */\r | |
3027 | } else\r | |
3028 | #endif\r | |
3029 | { /* With heading separator */\r | |
3030 | while (*path == '/' || *path == '\\') path++; /* Strip heading separator */\r | |
3031 | dp->obj.sclust = 0; /* Start from root directory */\r | |
3032 | }\r | |
3033 | #if FF_FS_EXFAT\r | |
3034 | dp->obj.n_frag = 0; /* Invalidate last fragment counter of the object */\r | |
3035 | #if FF_FS_RPATH != 0\r | |
3036 | if (fs->fs_type == FS_EXFAT && dp->obj.sclust) { /* exFAT: Retrieve the sub-directory's status */\r | |
3037 | DIR dj;\r | |
3038 | \r | |
3039 | dp->obj.c_scl = fs->cdc_scl;\r | |
3040 | dp->obj.c_size = fs->cdc_size;\r | |
3041 | dp->obj.c_ofs = fs->cdc_ofs;\r | |
3042 | res = load_obj_xdir(&dj, &dp->obj);\r | |
3043 | if (res != FR_OK) return res;\r | |
3044 | dp->obj.objsize = ld_dword(fs->dirbuf + XDIR_FileSize);\r | |
3045 | dp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2;\r | |
3046 | }\r | |
3047 | #endif\r | |
3048 | #endif\r | |
3049 | \r | |
3050 | if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */\r | |
3051 | dp->fn[NSFLAG] = NS_NONAME;\r | |
3052 | res = dir_sdi(dp, 0);\r | |
3053 | \r | |
3054 | } else { /* Follow path */\r | |
3055 | for (;;) {\r | |
3056 | res = create_name(dp, &path); /* Get a segment name of the path */\r | |
3057 | if (res != FR_OK) break;\r | |
3058 | res = dir_find(dp); /* Find an object with the segment name */\r | |
3059 | ns = dp->fn[NSFLAG];\r | |
3060 | if (res != FR_OK) { /* Failed to find the object */\r | |
3061 | if (res == FR_NO_FILE) { /* Object is not found */\r | |
3062 | if (FF_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */\r | |
3063 | if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */\r | |
3064 | dp->fn[NSFLAG] = NS_NONAME;\r | |
3065 | res = FR_OK;\r | |
3066 | } else { /* Could not find the object */\r | |
3067 | if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */\r | |
3068 | }\r | |
3069 | }\r | |
3070 | break;\r | |
3071 | }\r | |
3072 | if (ns & NS_LAST) break; /* Last segment matched. Function completed. */\r | |
3073 | /* Get into the sub-directory */\r | |
3074 | if (!(dp->obj.attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */\r | |
3075 | res = FR_NO_PATH; break;\r | |
3076 | }\r | |
3077 | #if FF_FS_EXFAT\r | |
3078 | if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */\r | |
3079 | dp->obj.c_scl = dp->obj.sclust;\r | |
3080 | dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;\r | |
3081 | dp->obj.c_ofs = dp->blk_ofs;\r | |
3082 | init_alloc_info(fs, &dp->obj); /* Open next directory */\r | |
3083 | } else\r | |
3084 | #endif\r | |
3085 | {\r | |
3086 | dp->obj.sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */\r | |
3087 | }\r | |
3088 | }\r | |
3089 | }\r | |
3090 | \r | |
3091 | return res;\r | |
3092 | }\r | |
3093 | \r | |
3094 | \r | |
3095 | \r | |
3096 | \r | |
3097 | /*-----------------------------------------------------------------------*/\r | |
3098 | /* Get logical drive number from path name */\r | |
3099 | /*-----------------------------------------------------------------------*/\r | |
3100 | \r | |
3101 | static int get_ldnumber ( /* Returns logical drive number (-1:invalid drive number or null pointer) */\r | |
3102 | const TCHAR** path /* Pointer to pointer to the path name */\r | |
3103 | )\r | |
3104 | {\r | |
3105 | const TCHAR *tp, *tt;\r | |
3106 | TCHAR tc;\r | |
3107 | int i, vol = -1;\r | |
3108 | #if FF_STR_VOLUME_ID /* Find string volume ID */\r | |
3109 | const char *sp;\r | |
3110 | char c;\r | |
3111 | #endif\r | |
3112 | \r | |
3113 | tt = tp = *path;\r | |
3114 | if (!tp) return vol; /* Invalid path name? */\r | |
3115 | do tc = *tt++; while ((UINT)tc >= (FF_USE_LFN ? ' ' : '!') && tc != ':'); /* Find a colon in the path */\r | |
3116 | \r | |
3117 | if (tc == ':') { /* DOS/Windows style volume ID? */\r | |
3118 | i = FF_VOLUMES;\r | |
3119 | if (IsDigit(*tp) && tp + 2 == tt) { /* Is there a numeric volume ID + colon? */\r | |
3120 | i = (int)*tp - '0'; /* Get the LD number */\r | |
3121 | }\r | |
3122 | #if FF_STR_VOLUME_ID == 1 /* Arbitrary string is enabled */\r | |
3123 | else {\r | |
3124 | i = 0;\r | |
3125 | do {\r | |
3126 | sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */\r | |
3127 | do { /* Compare the volume ID with path name */\r | |
3128 | c = *sp++; tc = *tp++;\r | |
3129 | if (IsLower(c)) c -= 0x20;\r | |
3130 | if (IsLower(tc)) tc -= 0x20;\r | |
3131 | } while (c && (TCHAR)c == tc);\r | |
3132 | } while ((c || tp != tt) && ++i < FF_VOLUMES); /* Repeat for each id until pattern match */\r | |
3133 | }\r | |
3134 | #endif\r | |
3135 | if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */\r | |
3136 | vol = i; /* Drive number */\r | |
3137 | *path = tt; /* Snip the drive prefix off */\r | |
3138 | }\r | |
3139 | return vol;\r | |
3140 | }\r | |
3141 | #if FF_STR_VOLUME_ID == 2 /* Unix style volume ID is enabled */\r | |
3142 | if (*tp == '/') {\r | |
3143 | i = 0;\r | |
3144 | do {\r | |
3145 | sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */\r | |
3146 | do { /* Compare the volume ID with path name */\r | |
3147 | c = *sp++; tc = *(++tp);\r | |
3148 | if (IsLower(c)) c -= 0x20;\r | |
3149 | if (IsLower(tc)) tc -= 0x20;\r | |
3150 | } while (c && (TCHAR)c == tc);\r | |
3151 | } while ((c || (tc != '/' && (UINT)tc >= (FF_USE_LFN ? ' ' : '!'))) && ++i < FF_VOLUMES); /* Repeat for each ID until pattern match */\r | |
3152 | if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */\r | |
3153 | vol = i; /* Drive number */\r | |
3154 | *path = tp; /* Snip the drive prefix off */\r | |
3155 | return vol;\r | |
3156 | }\r | |
3157 | }\r | |
3158 | #endif\r | |
3159 | /* No drive prefix is found */\r | |
3160 | #if FF_FS_RPATH != 0\r | |
3161 | vol = CurrVol; /* Default drive is current drive */\r | |
3162 | #else\r | |
3163 | vol = 0; /* Default drive is 0 */\r | |
3164 | #endif\r | |
3165 | return vol; /* Return the default drive */\r | |
3166 | }\r | |
3167 | \r | |
3168 | \r | |
3169 | \r | |
3170 | \r | |
3171 | /*-----------------------------------------------------------------------*/\r | |
3172 | /* Load a sector and check if it is an FAT VBR */\r | |
3173 | /*-----------------------------------------------------------------------*/\r | |
3174 | \r | |
3175 | static BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:Disk error */\r | |
3176 | FATFS* fs, /* Filesystem object */\r | |
3177 | DWORD sect /* Sector# (lba) to load and check if it is an FAT-VBR or not */\r | |
3178 | )\r | |
3179 | {\r | |
3180 | fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */\r | |
3181 | if (move_window(fs, sect) != FR_OK) return 4; /* Load boot record */\r | |
3182 | \r | |
3183 | if (ld_word(fs->win + BS_55AA) != 0xAA55) return 3; /* Check boot record signature (always here regardless of the sector size) */\r | |
3184 | \r | |
3185 | #if FF_FS_EXFAT\r | |
3186 | if (!mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; /* Check if exFAT VBR */\r | |
3187 | #endif\r | |
3188 | if (fs->win[BS_JmpBoot] == 0xE9 || fs->win[BS_JmpBoot] == 0xEB || fs->win[BS_JmpBoot] == 0xE8) { /* Valid JumpBoot code? */\r | |
3189 | if (!mem_cmp(fs->win + BS_FilSysType, "FAT", 3)) return 0; /* Is it an FAT VBR? */\r | |
3190 | if (!mem_cmp(fs->win + BS_FilSysType32, "FAT32", 5)) return 0; /* Is it an FAT32 VBR? */\r | |
3191 | }\r | |
3192 | return 2; /* Valid BS but not FAT */\r | |
3193 | }\r | |
3194 | \r | |
3195 | \r | |
3196 | \r | |
3197 | \r | |
3198 | /*-----------------------------------------------------------------------*/\r | |
3199 | /* Determine logical drive number and mount the volume if needed */\r | |
3200 | /*-----------------------------------------------------------------------*/\r | |
3201 | \r | |
3202 | static FRESULT find_volume ( /* FR_OK(0): successful, !=0: an error occurred */\r | |
3203 | const TCHAR** path, /* Pointer to pointer to the path name (drive number) */\r | |
3204 | FATFS** rfs, /* Pointer to pointer to the found filesystem object */\r | |
3205 | BYTE mode /* !=0: Check write protection for write access */\r | |
3206 | )\r | |
3207 | {\r | |
3208 | BYTE fmt, *pt;\r | |
3209 | int vol;\r | |
3210 | DSTATUS stat;\r | |
3211 | DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];\r | |
3212 | WORD nrsv;\r | |
3213 | FATFS *fs;\r | |
3214 | UINT i;\r | |
3215 | \r | |
3216 | \r | |
3217 | /* Get logical drive number */\r | |
3218 | *rfs = 0;\r | |
3219 | vol = get_ldnumber(path);\r | |
3220 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
3221 | \r | |
3222 | /* Check if the filesystem object is valid or not */\r | |
3223 | fs = FatFs[vol]; /* Get pointer to the filesystem object */\r | |
3224 | if (!fs) return FR_NOT_ENABLED; /* Is the filesystem object available? */\r | |
3225 | #if FF_FS_REENTRANT\r | |
3226 | if (!lock_fs(fs)) return FR_TIMEOUT; /* Lock the volume */\r | |
3227 | #endif\r | |
3228 | *rfs = fs; /* Return pointer to the filesystem object */\r | |
3229 | \r | |
3230 | mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */\r | |
3231 | if (fs->fs_type != 0) { /* If the volume has been mounted */\r | |
3232 | stat = disk_status(fs->pdrv);\r | |
3233 | if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */\r | |
3234 | if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */\r | |
3235 | return FR_WRITE_PROTECTED;\r | |
3236 | }\r | |
3237 | return FR_OK; /* The filesystem object is valid */\r | |
3238 | }\r | |
3239 | }\r | |
3240 | \r | |
3241 | /* The filesystem object is not valid. */\r | |
3242 | /* Following code attempts to mount the volume. (analyze BPB and initialize the filesystem object) */\r | |
3243 | \r | |
3244 | fs->fs_type = 0; /* Clear the filesystem object */\r | |
3245 | fs->pdrv = LD2PD(vol); /* Bind the logical drive and a physical drive */\r | |
3246 | stat = disk_initialize(fs->pdrv); /* Initialize the physical drive */\r | |
3247 | if (stat & STA_NOINIT) { /* Check if the initialization succeeded */\r | |
3248 | return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */\r | |
3249 | }\r | |
3250 | if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */\r | |
3251 | return FR_WRITE_PROTECTED;\r | |
3252 | }\r | |
3253 | #if FF_MAX_SS != FF_MIN_SS /* Get sector size (multiple sector size cfg only) */\r | |
3254 | if (disk_ioctl(fs->pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR;\r | |
3255 | if (SS(fs) > FF_MAX_SS || SS(fs) < FF_MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR;\r | |
3256 | #endif\r | |
3257 | \r | |
3258 | /* Find an FAT partition on the drive. Supports only generic partitioning rules, FDISK and SFD. */\r | |
3259 | bsect = 0;\r | |
3260 | fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT-VBR as SFD */\r | |
3261 | if (fmt == 2 || (fmt < 2 && LD2PT(vol) != 0)) { /* Not an FAT-VBR or forced partition number */\r | |
3262 | for (i = 0; i < 4; i++) { /* Get partition offset */\r | |
3263 | pt = fs->win + (MBR_Table + i * SZ_PTE);\r | |
3264 | br[i] = pt[PTE_System] ? ld_dword(pt + PTE_StLba) : 0;\r | |
3265 | }\r | |
3266 | i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */\r | |
3267 | if (i != 0) i--;\r | |
3268 | do { /* Find an FAT volume */\r | |
3269 | bsect = br[i];\r | |
3270 | fmt = bsect ? check_fs(fs, bsect) : 3; /* Check the partition */\r | |
3271 | } while (LD2PT(vol) == 0 && fmt >= 2 && ++i < 4);\r | |
3272 | }\r | |
3273 | if (fmt == 4) return FR_DISK_ERR; /* An error occured in the disk I/O layer */\r | |
3274 | if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */\r | |
3275 | \r | |
3276 | /* An FAT volume is found (bsect). Following code initializes the filesystem object */\r | |
3277 | \r | |
3278 | #if FF_FS_EXFAT\r | |
3279 | if (fmt == 1) {\r | |
3280 | QWORD maxlba;\r | |
3281 | \r | |
3282 | for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */\r | |
3283 | if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM;\r | |
3284 | \r | |
3285 | if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT version (must be version 1.0) */\r | |
3286 | \r | |
3287 | if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */\r | |
3288 | return FR_NO_FILESYSTEM;\r | |
3289 | }\r | |
3290 | \r | |
3291 | maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA + 1 of the volume */\r | |
3292 | if (maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be handled in 32-bit LBA) */\r | |
3293 | \r | |
3294 | fs->fsize = ld_dword(fs->win + BPB_FatSzEx); /* Number of sectors per FAT */\r | |
3295 | \r | |
3296 | fs->n_fats = fs->win[BPB_NumFATsEx]; /* Number of FATs */\r | |
3297 | if (fs->n_fats != 1) return FR_NO_FILESYSTEM; /* (Supports only 1 FAT) */\r | |
3298 | \r | |
3299 | fs->csize = 1 << fs->win[BPB_SecPerClusEx]; /* Cluster size */\r | |
3300 | if (fs->csize == 0) return FR_NO_FILESYSTEM; /* (Must be 1..32768) */\r | |
3301 | \r | |
3302 | nclst = ld_dword(fs->win + BPB_NumClusEx); /* Number of clusters */\r | |
3303 | if (nclst > MAX_EXFAT) return FR_NO_FILESYSTEM; /* (Too many clusters) */\r | |
3304 | fs->n_fatent = nclst + 2;\r | |
3305 | \r | |
3306 | /* Boundaries and Limits */\r | |
3307 | fs->volbase = bsect;\r | |
3308 | fs->database = bsect + ld_dword(fs->win + BPB_DataOfsEx);\r | |
3309 | fs->fatbase = bsect + ld_dword(fs->win + BPB_FatOfsEx);\r | |
3310 | if (maxlba < (QWORD)fs->database + nclst * fs->csize) return FR_NO_FILESYSTEM; /* (Volume size must not be smaller than the size requiered) */\r | |
3311 | fs->dirbase = ld_dword(fs->win + BPB_RootClusEx);\r | |
3312 | \r | |
3313 | /* Check if bitmap location is in assumption (at the first cluster) */\r | |
3314 | if (move_window(fs, clst2sect(fs, fs->dirbase)) != FR_OK) return FR_DISK_ERR;\r | |
3315 | for (i = 0; i < SS(fs); i += SZDIRE) {\r | |
3316 | if (fs->win[i] == 0x81 && ld_dword(fs->win + i + 20) == 2) break; /* 81 entry with cluster #2? */\r | |
3317 | }\r | |
3318 | if (i == SS(fs)) return FR_NO_FILESYSTEM;\r | |
3319 | #if !FF_FS_READONLY\r | |
3320 | fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */\r | |
3321 | #endif\r | |
3322 | fmt = FS_EXFAT; /* FAT sub-type */\r | |
3323 | } else\r | |
3324 | #endif /* FF_FS_EXFAT */\r | |
3325 | {\r | |
3326 | if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */\r | |
3327 | \r | |
3328 | fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */\r | |
3329 | if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32);\r | |
3330 | fs->fsize = fasize;\r | |
3331 | \r | |
3332 | fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */\r | |
3333 | if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */\r | |
3334 | fasize *= fs->n_fats; /* Number of sectors for FAT area */\r | |
3335 | \r | |
3336 | fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */\r | |
3337 | if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */\r | |
3338 | \r | |
3339 | fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */\r | |
3340 | if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */\r | |
3341 | \r | |
3342 | tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */\r | |
3343 | if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32);\r | |
3344 | \r | |
3345 | nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */\r | |
3346 | if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */\r | |
3347 | \r | |
3348 | /* Determine the FAT sub type */\r | |
3349 | sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + DIR */\r | |
3350 | if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */\r | |
3351 | nclst = (tsect - sysect) / fs->csize; /* Number of clusters */\r | |
3352 | if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */\r | |
3353 | fmt = 0;\r | |
3354 | if (nclst <= MAX_FAT32) fmt = FS_FAT32;\r | |
3355 | if (nclst <= MAX_FAT16) fmt = FS_FAT16;\r | |
3356 | if (nclst <= MAX_FAT12) fmt = FS_FAT12;\r | |
3357 | if (fmt == 0) return FR_NO_FILESYSTEM;\r | |
3358 | \r | |
3359 | /* Boundaries and Limits */\r | |
3360 | fs->n_fatent = nclst + 2; /* Number of FAT entries */\r | |
3361 | fs->volbase = bsect; /* Volume start sector */\r | |
3362 | fs->fatbase = bsect + nrsv; /* FAT start sector */\r | |
3363 | fs->database = bsect + sysect; /* Data start sector */\r | |
3364 | if (fmt == FS_FAT32) {\r | |
3365 | if (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */\r | |
3366 | if (fs->n_rootdir != 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */\r | |
3367 | fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */\r | |
3368 | szbfat = fs->n_fatent * 4; /* (Needed FAT size) */\r | |
3369 | } else {\r | |
3370 | if (fs->n_rootdir == 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */\r | |
3371 | fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */\r | |
3372 | szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */\r | |
3373 | fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);\r | |
3374 | }\r | |
3375 | if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */\r | |
3376 | \r | |
3377 | #if !FF_FS_READONLY\r | |
3378 | /* Get FSInfo if available */\r | |
3379 | fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */\r | |
3380 | fs->fsi_flag = 0x80;\r | |
3381 | #if (FF_FS_NOFSINFO & 3) != 3\r | |
3382 | if (fmt == FS_FAT32 /* Allow to update FSInfo only if BPB_FSInfo32 == 1 */\r | |
3383 | && ld_word(fs->win + BPB_FSInfo32) == 1\r | |
3384 | && move_window(fs, bsect + 1) == FR_OK)\r | |
3385 | {\r | |
3386 | fs->fsi_flag = 0;\r | |
3387 | if (ld_word(fs->win + BS_55AA) == 0xAA55 /* Load FSInfo data if available */\r | |
3388 | && ld_dword(fs->win + FSI_LeadSig) == 0x41615252\r | |
3389 | && ld_dword(fs->win + FSI_StrucSig) == 0x61417272)\r | |
3390 | {\r | |
3391 | #if (FF_FS_NOFSINFO & 1) == 0\r | |
3392 | fs->free_clst = ld_dword(fs->win + FSI_Free_Count);\r | |
3393 | #endif\r | |
3394 | #if (FF_FS_NOFSINFO & 2) == 0\r | |
3395 | fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free);\r | |
3396 | #endif\r | |
3397 | }\r | |
3398 | }\r | |
3399 | #endif /* (FF_FS_NOFSINFO & 3) != 3 */\r | |
3400 | #endif /* !FF_FS_READONLY */\r | |
3401 | }\r | |
3402 | \r | |
3403 | fs->fs_type = fmt; /* FAT sub-type */\r | |
3404 | fs->id = ++Fsid; /* Volume mount ID */\r | |
3405 | #if FF_USE_LFN == 1\r | |
3406 | fs->lfnbuf = LfnBuf; /* Static LFN working buffer */\r | |
3407 | #if FF_FS_EXFAT\r | |
3408 | fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */\r | |
3409 | #endif\r | |
3410 | #endif\r | |
3411 | #if FF_FS_RPATH != 0\r | |
3412 | fs->cdir = 0; /* Initialize current directory */\r | |
3413 | #endif\r | |
3414 | #if FF_FS_LOCK != 0 /* Clear file lock semaphores */\r | |
3415 | clear_lock(fs);\r | |
3416 | #endif\r | |
3417 | return FR_OK;\r | |
3418 | }\r | |
3419 | \r | |
3420 | \r | |
3421 | \r | |
3422 | \r | |
3423 | /*-----------------------------------------------------------------------*/\r | |
3424 | /* Check if the file/directory object is valid or not */\r | |
3425 | /*-----------------------------------------------------------------------*/\r | |
3426 | \r | |
3427 | static FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */\r | |
3428 | FFOBJID* obj, /* Pointer to the FFOBJID, the 1st member in the FIL/DIR object, to check validity */\r | |
3429 | FATFS** rfs /* Pointer to pointer to the owner filesystem object to return */\r | |
3430 | )\r | |
3431 | {\r | |
3432 | FRESULT res = FR_INVALID_OBJECT;\r | |
3433 | \r | |
3434 | \r | |
3435 | if (obj && obj->fs && obj->fs->fs_type && obj->id == obj->fs->id) { /* Test if the object is valid */\r | |
3436 | #if FF_FS_REENTRANT\r | |
3437 | if (lock_fs(obj->fs)) { /* Obtain the filesystem object */\r | |
3438 | if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */\r | |
3439 | res = FR_OK;\r | |
3440 | } else {\r | |
3441 | unlock_fs(obj->fs, FR_OK);\r | |
3442 | }\r | |
3443 | } else {\r | |
3444 | res = FR_TIMEOUT;\r | |
3445 | }\r | |
3446 | #else\r | |
3447 | if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */\r | |
3448 | res = FR_OK;\r | |
3449 | }\r | |
3450 | #endif\r | |
3451 | }\r | |
3452 | *rfs = (res == FR_OK) ? obj->fs : 0; /* Corresponding filesystem object */\r | |
3453 | return res;\r | |
3454 | }\r | |
3455 | \r | |
3456 | \r | |
3457 | \r | |
3458 | \r | |
3459 | /*---------------------------------------------------------------------------\r | |
3460 | \r | |
3461 | Public Functions (FatFs API)\r | |
3462 | \r | |
3463 | ----------------------------------------------------------------------------*/\r | |
3464 | \r | |
3465 | \r | |
3466 | \r | |
3467 | /*-----------------------------------------------------------------------*/\r | |
3468 | /* Mount/Unmount a Logical Drive */\r | |
3469 | /*-----------------------------------------------------------------------*/\r | |
3470 | \r | |
3471 | FRESULT f_mount (\r | |
3472 | FATFS* fs, /* Pointer to the filesystem object (NULL:unmount)*/\r | |
3473 | const TCHAR* path, /* Logical drive number to be mounted/unmounted */\r | |
3474 | BYTE opt /* Mode option 0:Do not mount (delayed mount), 1:Mount immediately */\r | |
3475 | )\r | |
3476 | {\r | |
3477 | FATFS *cfs;\r | |
3478 | int vol;\r | |
3479 | FRESULT res;\r | |
3480 | const TCHAR *rp = path;\r | |
3481 | \r | |
3482 | \r | |
3483 | /* Get logical drive number */\r | |
3484 | vol = get_ldnumber(&rp);\r | |
3485 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
3486 | cfs = FatFs[vol]; /* Pointer to fs object */\r | |
3487 | \r | |
3488 | if (cfs) {\r | |
3489 | #if FF_FS_LOCK != 0\r | |
3490 | clear_lock(cfs);\r | |
3491 | #endif\r | |
3492 | #if FF_FS_REENTRANT /* Discard sync object of the current volume */\r | |
3493 | if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;\r | |
3494 | #endif\r | |
3495 | cfs->fs_type = 0; /* Clear old fs object */\r | |
3496 | }\r | |
3497 | \r | |
3498 | if (fs) {\r | |
3499 | fs->fs_type = 0; /* Clear new fs object */\r | |
3500 | #if FF_FS_REENTRANT /* Create sync object for the new volume */\r | |
3501 | if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;\r | |
3502 | #endif\r | |
3503 | }\r | |
3504 | FatFs[vol] = fs; /* Register new fs object */\r | |
3505 | \r | |
3506 | if (opt == 0) return FR_OK; /* Do not mount now, it will be mounted later */\r | |
3507 | \r | |
3508 | res = find_volume(&path, &fs, 0); /* Force mounted the volume */\r | |
3509 | LEAVE_FF(fs, res);\r | |
3510 | }\r | |
3511 | \r | |
3512 | \r | |
3513 | \r | |
3514 | \r | |
3515 | /*-----------------------------------------------------------------------*/\r | |
3516 | /* Open or Create a File */\r | |
3517 | /*-----------------------------------------------------------------------*/\r | |
3518 | \r | |
3519 | FRESULT f_open (\r | |
3520 | FIL* fp, /* Pointer to the blank file object */\r | |
3521 | const TCHAR* path, /* Pointer to the file name */\r | |
3522 | BYTE mode /* Access mode and file open mode flags */\r | |
3523 | )\r | |
3524 | {\r | |
3525 | FRESULT res;\r | |
3526 | DIR dj;\r | |
3527 | FATFS *fs;\r | |
3528 | #if !FF_FS_READONLY\r | |
3529 | DWORD dw, cl, bcs, clst, sc;\r | |
3530 | FSIZE_t ofs;\r | |
3531 | #endif\r | |
3532 | DEF_NAMBUF\r | |
3533 | \r | |
3534 | \r | |
3535 | if (!fp) return FR_INVALID_OBJECT;\r | |
3536 | \r | |
3537 | /* Get logical drive number */\r | |
3538 | mode &= FF_FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND;\r | |
3539 | res = find_volume(&path, &fs, mode);\r | |
3540 | if (res == FR_OK) {\r | |
3541 | dj.obj.fs = fs;\r | |
3542 | INIT_NAMBUF(fs);\r | |
3543 | res = follow_path(&dj, path); /* Follow the file path */\r | |
3544 | #if !FF_FS_READONLY /* Read/Write configuration */\r | |
3545 | if (res == FR_OK) {\r | |
3546 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */\r | |
3547 | res = FR_INVALID_NAME;\r | |
3548 | }\r | |
3549 | #if FF_FS_LOCK != 0\r | |
3550 | else {\r | |
3551 | res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Check if the file can be used */\r | |
3552 | }\r | |
3553 | #endif\r | |
3554 | }\r | |
3555 | /* Create or Open a file */\r | |
3556 | if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {\r | |
3557 | if (res != FR_OK) { /* No file, create new */\r | |
3558 | if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */\r | |
3559 | #if FF_FS_LOCK != 0\r | |
3560 | res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;\r | |
3561 | #else\r | |
3562 | res = dir_register(&dj);\r | |
3563 | #endif\r | |
3564 | }\r | |
3565 | mode |= FA_CREATE_ALWAYS; /* File is created */\r | |
3566 | }\r | |
3567 | else { /* Any object with the same name is already existing */\r | |
3568 | if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */\r | |
3569 | res = FR_DENIED;\r | |
3570 | } else {\r | |
3571 | if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */\r | |
3572 | }\r | |
3573 | }\r | |
3574 | if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate the file if overwrite mode */\r | |
3575 | #if FF_FS_EXFAT\r | |
3576 | if (fs->fs_type == FS_EXFAT) {\r | |
3577 | /* Get current allocation info */\r | |
3578 | fp->obj.fs = fs;\r | |
3579 | init_alloc_info(fs, &fp->obj);\r | |
3580 | /* Set directory entry block initial state */\r | |
3581 | mem_set(fs->dirbuf + 2, 0, 30); /* Clear 85 entry except for NumSec */\r | |
3582 | mem_set(fs->dirbuf + 38, 0, 26); /* Clear C0 entry except for NumName and NameHash */\r | |
3583 | fs->dirbuf[XDIR_Attr] = AM_ARC;\r | |
3584 | st_dword(fs->dirbuf + XDIR_CrtTime, GET_FATTIME());\r | |
3585 | fs->dirbuf[XDIR_GenFlags] = 1;\r | |
3586 | res = store_xdir(&dj);\r | |
3587 | if (res == FR_OK && fp->obj.sclust != 0) { /* Remove the cluster chain if exist */\r | |
3588 | res = remove_chain(&fp->obj, fp->obj.sclust, 0);\r | |
3589 | fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */\r | |
3590 | }\r | |
3591 | } else\r | |
3592 | #endif\r | |
3593 | {\r | |
3594 | /* Set directory entry initial state */\r | |
3595 | cl = ld_clust(fs, dj.dir); /* Get current cluster chain */\r | |
3596 | st_dword(dj.dir + DIR_CrtTime, GET_FATTIME()); /* Set created time */\r | |
3597 | dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */\r | |
3598 | st_clust(fs, dj.dir, 0); /* Reset file allocation info */\r | |
3599 | st_dword(dj.dir + DIR_FileSize, 0);\r | |
3600 | fs->wflag = 1;\r | |
3601 | if (cl != 0) { /* Remove the cluster chain if exist */\r | |
3602 | dw = fs->winsect;\r | |
3603 | res = remove_chain(&dj.obj, cl, 0);\r | |
3604 | if (res == FR_OK) {\r | |
3605 | res = move_window(fs, dw);\r | |
3606 | fs->last_clst = cl - 1; /* Reuse the cluster hole */\r | |
3607 | }\r | |
3608 | }\r | |
3609 | }\r | |
3610 | }\r | |
3611 | }\r | |
3612 | else { /* Open an existing file */\r | |
3613 | if (res == FR_OK) { /* Is the object exsiting? */\r | |
3614 | if (dj.obj.attr & AM_DIR) { /* File open against a directory */\r | |
3615 | res = FR_NO_FILE;\r | |
3616 | } else {\r | |
3617 | if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* Write mode open against R/O file */\r | |
3618 | res = FR_DENIED;\r | |
3619 | }\r | |
3620 | }\r | |
3621 | }\r | |
3622 | }\r | |
3623 | if (res == FR_OK) {\r | |
3624 | if (mode & FA_CREATE_ALWAYS) mode |= FA_MODIFIED; /* Set file change flag if created or overwritten */\r | |
3625 | fp->dir_sect = fs->winsect; /* Pointer to the directory entry */\r | |
3626 | fp->dir_ptr = dj.dir;\r | |
3627 | #if FF_FS_LOCK != 0\r | |
3628 | fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Lock the file for this session */\r | |
3629 | if (fp->obj.lockid == 0) res = FR_INT_ERR;\r | |
3630 | #endif\r | |
3631 | }\r | |
3632 | #else /* R/O configuration */\r | |
3633 | if (res == FR_OK) {\r | |
3634 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it origin directory itself? */\r | |
3635 | res = FR_INVALID_NAME;\r | |
3636 | } else {\r | |
3637 | if (dj.obj.attr & AM_DIR) { /* Is it a directory? */\r | |
3638 | res = FR_NO_FILE;\r | |
3639 | }\r | |
3640 | }\r | |
3641 | }\r | |
3642 | #endif\r | |
3643 | \r | |
3644 | if (res == FR_OK) {\r | |
3645 | #if FF_FS_EXFAT\r | |
3646 | if (fs->fs_type == FS_EXFAT) {\r | |
3647 | fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */\r | |
3648 | fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;\r | |
3649 | fp->obj.c_ofs = dj.blk_ofs;\r | |
3650 | init_alloc_info(fs, &fp->obj);\r | |
3651 | } else\r | |
3652 | #endif\r | |
3653 | {\r | |
3654 | fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */\r | |
3655 | fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize);\r | |
3656 | }\r | |
3657 | #if FF_USE_FASTSEEK\r | |
3658 | fp->cltbl = 0; /* Disable fast seek mode */\r | |
3659 | #endif\r | |
3660 | fp->obj.fs = fs; /* Validate the file object */\r | |
3661 | fp->obj.id = fs->id;\r | |
3662 | fp->flag = mode; /* Set file access mode */\r | |
3663 | fp->err = 0; /* Clear error flag */\r | |
3664 | fp->sect = 0; /* Invalidate current data sector */\r | |
3665 | fp->fptr = 0; /* Set file pointer top of the file */\r | |
3666 | #if !FF_FS_READONLY\r | |
3667 | #if !FF_FS_TINY\r | |
3668 | mem_set(fp->buf, 0, FF_MAX_SS); /* Clear sector buffer */\r | |
3669 | #endif\r | |
3670 | if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */\r | |
3671 | fp->fptr = fp->obj.objsize; /* Offset to seek */\r | |
3672 | bcs = (DWORD)fs->csize * SS(fs); /* Cluster size in byte */\r | |
3673 | clst = fp->obj.sclust; /* Follow the cluster chain */\r | |
3674 | for (ofs = fp->obj.objsize; res == FR_OK && ofs > bcs; ofs -= bcs) {\r | |
3675 | clst = get_fat(&fp->obj, clst);\r | |
3676 | if (clst <= 1) res = FR_INT_ERR;\r | |
3677 | if (clst == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
3678 | }\r | |
3679 | fp->clust = clst;\r | |
3680 | if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */\r | |
3681 | if ((sc = clst2sect(fs, clst)) == 0) {\r | |
3682 | res = FR_INT_ERR;\r | |
3683 | } else {\r | |
3684 | fp->sect = sc + (DWORD)(ofs / SS(fs));\r | |
3685 | #if !FF_FS_TINY\r | |
3686 | if (disk_read(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR;\r | |
3687 | #endif\r | |
3688 | }\r | |
3689 | }\r | |
3690 | }\r | |
3691 | #endif\r | |
3692 | }\r | |
3693 | \r | |
3694 | FREE_NAMBUF();\r | |
3695 | }\r | |
3696 | \r | |
3697 | if (res != FR_OK) fp->obj.fs = 0; /* Invalidate file object on error */\r | |
3698 | \r | |
3699 | LEAVE_FF(fs, res);\r | |
3700 | }\r | |
3701 | \r | |
3702 | \r | |
3703 | \r | |
3704 | \r | |
3705 | /*-----------------------------------------------------------------------*/\r | |
3706 | /* Read File */\r | |
3707 | /*-----------------------------------------------------------------------*/\r | |
3708 | \r | |
3709 | FRESULT f_read (\r | |
3710 | FIL* fp, /* Pointer to the file object */\r | |
3711 | void* buff, /* Pointer to data buffer */\r | |
3712 | UINT btr, /* Number of bytes to read */\r | |
3713 | UINT* br /* Pointer to number of bytes read */\r | |
3714 | )\r | |
3715 | {\r | |
3716 | FRESULT res;\r | |
3717 | FATFS *fs;\r | |
3718 | DWORD clst, sect;\r | |
3719 | FSIZE_t remain;\r | |
3720 | UINT rcnt, cc, csect;\r | |
3721 | BYTE *rbuff = (BYTE*)buff;\r | |
3722 | \r | |
3723 | \r | |
3724 | *br = 0; /* Clear read byte counter */\r | |
3725 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
3726 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */\r | |
3727 | if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
3728 | remain = fp->obj.objsize - fp->fptr;\r | |
3729 | if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */\r | |
3730 | \r | |
3731 | for ( ; btr; /* Repeat until btr bytes read */\r | |
3732 | btr -= rcnt, *br += rcnt, rbuff += rcnt, fp->fptr += rcnt) {\r | |
3733 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r | |
3734 | csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */\r | |
3735 | if (csect == 0) { /* On the cluster boundary? */\r | |
3736 | if (fp->fptr == 0) { /* On the top of the file? */\r | |
3737 | clst = fp->obj.sclust; /* Follow cluster chain from the origin */\r | |
3738 | } else { /* Middle or end of the file */\r | |
3739 | #if FF_USE_FASTSEEK\r | |
3740 | if (fp->cltbl) {\r | |
3741 | clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */\r | |
3742 | } else\r | |
3743 | #endif\r | |
3744 | {\r | |
3745 | clst = get_fat(&fp->obj, fp->clust); /* Follow cluster chain on the FAT */\r | |
3746 | }\r | |
3747 | }\r | |
3748 | if (clst < 2) ABORT(fs, FR_INT_ERR);\r | |
3749 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
3750 | fp->clust = clst; /* Update current cluster */\r | |
3751 | }\r | |
3752 | sect = clst2sect(fs, fp->clust); /* Get current sector */\r | |
3753 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
3754 | sect += csect;\r | |
3755 | cc = btr / SS(fs); /* When remaining bytes >= sector size, */\r | |
3756 | if (cc > 0) { /* Read maximum contiguous sectors directly */\r | |
3757 | if (csect + cc > fs->csize) { /* Clip at cluster boundary */\r | |
3758 | cc = fs->csize - csect;\r | |
3759 | }\r | |
3760 | if (disk_read(fs->pdrv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
3761 | #if !FF_FS_READONLY && FF_FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */\r | |
3762 | #if FF_FS_TINY\r | |
3763 | if (fs->wflag && fs->winsect - sect < cc) {\r | |
3764 | mem_cpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs));\r | |
3765 | }\r | |
3766 | #else\r | |
3767 | if ((fp->flag & FA_DIRTY) && fp->sect - sect < cc) {\r | |
3768 | mem_cpy(rbuff + ((fp->sect - sect) * SS(fs)), fp->buf, SS(fs));\r | |
3769 | }\r | |
3770 | #endif\r | |
3771 | #endif\r | |
3772 | rcnt = SS(fs) * cc; /* Number of bytes transferred */\r | |
3773 | continue;\r | |
3774 | }\r | |
3775 | #if !FF_FS_TINY\r | |
3776 | if (fp->sect != sect) { /* Load data sector if not in cache */\r | |
3777 | #if !FF_FS_READONLY\r | |
3778 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r | |
3779 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
3780 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
3781 | }\r | |
3782 | #endif\r | |
3783 | if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */\r | |
3784 | }\r | |
3785 | #endif\r | |
3786 | fp->sect = sect;\r | |
3787 | }\r | |
3788 | rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */\r | |
3789 | if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */\r | |
3790 | #if FF_FS_TINY\r | |
3791 | if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */\r | |
3792 | mem_cpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */\r | |
3793 | #else\r | |
3794 | mem_cpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */\r | |
3795 | #endif\r | |
3796 | }\r | |
3797 | \r | |
3798 | LEAVE_FF(fs, FR_OK);\r | |
3799 | }\r | |
3800 | \r | |
3801 | \r | |
3802 | \r | |
3803 | \r | |
3804 | #if !FF_FS_READONLY\r | |
3805 | /*-----------------------------------------------------------------------*/\r | |
3806 | /* Write File */\r | |
3807 | /*-----------------------------------------------------------------------*/\r | |
3808 | \r | |
3809 | FRESULT f_write (\r | |
3810 | FIL* fp, /* Pointer to the file object */\r | |
3811 | const void* buff, /* Pointer to the data to be written */\r | |
3812 | UINT btw, /* Number of bytes to write */\r | |
3813 | UINT* bw /* Pointer to number of bytes written */\r | |
3814 | )\r | |
3815 | {\r | |
3816 | FRESULT res;\r | |
3817 | FATFS *fs;\r | |
3818 | DWORD clst, sect;\r | |
3819 | UINT wcnt, cc, csect;\r | |
3820 | const BYTE *wbuff = (const BYTE*)buff;\r | |
3821 | \r | |
3822 | \r | |
3823 | *bw = 0; /* Clear write byte counter */\r | |
3824 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
3825 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */\r | |
3826 | if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
3827 | \r | |
3828 | /* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */\r | |
3829 | if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {\r | |
3830 | btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);\r | |
3831 | }\r | |
3832 | \r | |
3833 | for ( ; btw; /* Repeat until all data written */\r | |
3834 | btw -= wcnt, *bw += wcnt, wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize) {\r | |
3835 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r | |
3836 | csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */\r | |
3837 | if (csect == 0) { /* On the cluster boundary? */\r | |
3838 | if (fp->fptr == 0) { /* On the top of the file? */\r | |
3839 | clst = fp->obj.sclust; /* Follow from the origin */\r | |
3840 | if (clst == 0) { /* If no cluster is allocated, */\r | |
3841 | clst = create_chain(&fp->obj, 0); /* create a new cluster chain */\r | |
3842 | }\r | |
3843 | } else { /* On the middle or end of the file */\r | |
3844 | #if FF_USE_FASTSEEK\r | |
3845 | if (fp->cltbl) {\r | |
3846 | clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */\r | |
3847 | } else\r | |
3848 | #endif\r | |
3849 | {\r | |
3850 | clst = create_chain(&fp->obj, fp->clust); /* Follow or stretch cluster chain on the FAT */\r | |
3851 | }\r | |
3852 | }\r | |
3853 | if (clst == 0) break; /* Could not allocate a new cluster (disk full) */\r | |
3854 | if (clst == 1) ABORT(fs, FR_INT_ERR);\r | |
3855 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
3856 | fp->clust = clst; /* Update current cluster */\r | |
3857 | if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */\r | |
3858 | }\r | |
3859 | #if FF_FS_TINY\r | |
3860 | if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */\r | |
3861 | #else\r | |
3862 | if (fp->flag & FA_DIRTY) { /* Write-back sector cache */\r | |
3863 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
3864 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
3865 | }\r | |
3866 | #endif\r | |
3867 | sect = clst2sect(fs, fp->clust); /* Get current sector */\r | |
3868 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
3869 | sect += csect;\r | |
3870 | cc = btw / SS(fs); /* When remaining bytes >= sector size, */\r | |
3871 | if (cc > 0) { /* Write maximum contiguous sectors directly */\r | |
3872 | if (csect + cc > fs->csize) { /* Clip at cluster boundary */\r | |
3873 | cc = fs->csize - csect;\r | |
3874 | }\r | |
3875 | if (disk_write(fs->pdrv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
3876 | #if FF_FS_MINIMIZE <= 2\r | |
3877 | #if FF_FS_TINY\r | |
3878 | if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */\r | |
3879 | mem_cpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs));\r | |
3880 | fs->wflag = 0;\r | |
3881 | }\r | |
3882 | #else\r | |
3883 | if (fp->sect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */\r | |
3884 | mem_cpy(fp->buf, wbuff + ((fp->sect - sect) * SS(fs)), SS(fs));\r | |
3885 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
3886 | }\r | |
3887 | #endif\r | |
3888 | #endif\r | |
3889 | wcnt = SS(fs) * cc; /* Number of bytes transferred */\r | |
3890 | continue;\r | |
3891 | }\r | |
3892 | #if FF_FS_TINY\r | |
3893 | if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */\r | |
3894 | if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR);\r | |
3895 | fs->winsect = sect;\r | |
3896 | }\r | |
3897 | #else\r | |
3898 | if (fp->sect != sect && /* Fill sector cache with file data */\r | |
3899 | fp->fptr < fp->obj.objsize &&\r | |
3900 | disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) {\r | |
3901 | ABORT(fs, FR_DISK_ERR);\r | |
3902 | }\r | |
3903 | #endif\r | |
3904 | fp->sect = sect;\r | |
3905 | }\r | |
3906 | wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */\r | |
3907 | if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */\r | |
3908 | #if FF_FS_TINY\r | |
3909 | if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */\r | |
3910 | mem_cpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */\r | |
3911 | fs->wflag = 1;\r | |
3912 | #else\r | |
3913 | mem_cpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */\r | |
3914 | fp->flag |= FA_DIRTY;\r | |
3915 | #endif\r | |
3916 | }\r | |
3917 | \r | |
3918 | fp->flag |= FA_MODIFIED; /* Set file change flag */\r | |
3919 | \r | |
3920 | LEAVE_FF(fs, FR_OK);\r | |
3921 | }\r | |
3922 | \r | |
3923 | \r | |
3924 | \r | |
3925 | \r | |
3926 | /*-----------------------------------------------------------------------*/\r | |
3927 | /* Synchronize the File */\r | |
3928 | /*-----------------------------------------------------------------------*/\r | |
3929 | \r | |
3930 | FRESULT f_sync (\r | |
3931 | FIL* fp /* Pointer to the file object */\r | |
3932 | )\r | |
3933 | {\r | |
3934 | FRESULT res;\r | |
3935 | FATFS *fs;\r | |
3936 | DWORD tm;\r | |
3937 | BYTE *dir;\r | |
3938 | \r | |
3939 | \r | |
3940 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
3941 | if (res == FR_OK) {\r | |
3942 | if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */\r | |
3943 | #if !FF_FS_TINY\r | |
3944 | if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */\r | |
3945 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR);\r | |
3946 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
3947 | }\r | |
3948 | #endif\r | |
3949 | /* Update the directory entry */\r | |
3950 | tm = GET_FATTIME(); /* Modified time */\r | |
3951 | #if FF_FS_EXFAT\r | |
3952 | if (fs->fs_type == FS_EXFAT) {\r | |
3953 | res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */\r | |
3954 | if (res == FR_OK) {\r | |
3955 | res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */\r | |
3956 | }\r | |
3957 | if (res == FR_OK) {\r | |
3958 | DIR dj;\r | |
3959 | DEF_NAMBUF\r | |
3960 | \r | |
3961 | INIT_NAMBUF(fs);\r | |
3962 | res = load_obj_xdir(&dj, &fp->obj); /* Load directory entry block */\r | |
3963 | if (res == FR_OK) {\r | |
3964 | fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */\r | |
3965 | fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation information */\r | |
3966 | st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust);\r | |
3967 | st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize);\r | |
3968 | st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize);\r | |
3969 | st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Update modified time */\r | |
3970 | fs->dirbuf[XDIR_ModTime10] = 0;\r | |
3971 | st_dword(fs->dirbuf + XDIR_AccTime, 0);\r | |
3972 | res = store_xdir(&dj); /* Restore it to the directory */\r | |
3973 | if (res == FR_OK) {\r | |
3974 | res = sync_fs(fs);\r | |
3975 | fp->flag &= (BYTE)~FA_MODIFIED;\r | |
3976 | }\r | |
3977 | }\r | |
3978 | FREE_NAMBUF();\r | |
3979 | }\r | |
3980 | } else\r | |
3981 | #endif\r | |
3982 | {\r | |
3983 | res = move_window(fs, fp->dir_sect);\r | |
3984 | if (res == FR_OK) {\r | |
3985 | dir = fp->dir_ptr;\r | |
3986 | dir[DIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */\r | |
3987 | st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation information */\r | |
3988 | st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */\r | |
3989 | st_dword(dir + DIR_ModTime, tm); /* Update modified time */\r | |
3990 | st_word(dir + DIR_LstAccDate, 0);\r | |
3991 | fs->wflag = 1;\r | |
3992 | res = sync_fs(fs); /* Restore it to the directory */\r | |
3993 | fp->flag &= (BYTE)~FA_MODIFIED;\r | |
3994 | }\r | |
3995 | }\r | |
3996 | }\r | |
3997 | }\r | |
3998 | \r | |
3999 | LEAVE_FF(fs, res);\r | |
4000 | }\r | |
4001 | \r | |
4002 | #endif /* !FF_FS_READONLY */\r | |
4003 | \r | |
4004 | \r | |
4005 | \r | |
4006 | \r | |
4007 | /*-----------------------------------------------------------------------*/\r | |
4008 | /* Close File */\r | |
4009 | /*-----------------------------------------------------------------------*/\r | |
4010 | \r | |
4011 | FRESULT f_close (\r | |
4012 | FIL* fp /* Pointer to the file object to be closed */\r | |
4013 | )\r | |
4014 | {\r | |
4015 | FRESULT res;\r | |
4016 | FATFS *fs;\r | |
4017 | \r | |
4018 | #if !FF_FS_READONLY\r | |
4019 | res = f_sync(fp); /* Flush cached data */\r | |
4020 | if (res == FR_OK)\r | |
4021 | #endif\r | |
4022 | {\r | |
4023 | res = validate(&fp->obj, &fs); /* Lock volume */\r | |
4024 | if (res == FR_OK) {\r | |
4025 | #if FF_FS_LOCK != 0\r | |
4026 | res = dec_lock(fp->obj.lockid); /* Decrement file open counter */\r | |
4027 | if (res == FR_OK) fp->obj.fs = 0; /* Invalidate file object */\r | |
4028 | #else\r | |
4029 | fp->obj.fs = 0; /* Invalidate file object */\r | |
4030 | #endif\r | |
4031 | #if FF_FS_REENTRANT\r | |
4032 | unlock_fs(fs, FR_OK); /* Unlock volume */\r | |
4033 | #endif\r | |
4034 | }\r | |
4035 | }\r | |
4036 | return res;\r | |
4037 | }\r | |
4038 | \r | |
4039 | \r | |
4040 | \r | |
4041 | \r | |
4042 | #if FF_FS_RPATH >= 1\r | |
4043 | /*-----------------------------------------------------------------------*/\r | |
4044 | /* Change Current Directory or Current Drive, Get Current Directory */\r | |
4045 | /*-----------------------------------------------------------------------*/\r | |
4046 | \r | |
4047 | FRESULT f_chdrive (\r | |
4048 | const TCHAR* path /* Drive number to set */\r | |
4049 | )\r | |
4050 | {\r | |
4051 | int vol;\r | |
4052 | \r | |
4053 | \r | |
4054 | /* Get logical drive number */\r | |
4055 | vol = get_ldnumber(&path);\r | |
4056 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
4057 | CurrVol = (BYTE)vol; /* Set it as current volume */\r | |
4058 | \r | |
4059 | return FR_OK;\r | |
4060 | }\r | |
4061 | \r | |
4062 | \r | |
4063 | \r | |
4064 | FRESULT f_chdir (\r | |
4065 | const TCHAR* path /* Pointer to the directory path */\r | |
4066 | )\r | |
4067 | {\r | |
4068 | #if FF_STR_VOLUME_ID == 2\r | |
4069 | UINT i;\r | |
4070 | #endif\r | |
4071 | FRESULT res;\r | |
4072 | DIR dj;\r | |
4073 | FATFS *fs;\r | |
4074 | DEF_NAMBUF\r | |
4075 | \r | |
4076 | \r | |
4077 | /* Get logical drive */\r | |
4078 | res = find_volume(&path, &fs, 0);\r | |
4079 | if (res == FR_OK) {\r | |
4080 | dj.obj.fs = fs;\r | |
4081 | INIT_NAMBUF(fs);\r | |
4082 | res = follow_path(&dj, path); /* Follow the path */\r | |
4083 | if (res == FR_OK) { /* Follow completed */\r | |
4084 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it the start directory itself? */\r | |
4085 | fs->cdir = dj.obj.sclust;\r | |
4086 | #if FF_FS_EXFAT\r | |
4087 | if (fs->fs_type == FS_EXFAT) {\r | |
4088 | fs->cdc_scl = dj.obj.c_scl;\r | |
4089 | fs->cdc_size = dj.obj.c_size;\r | |
4090 | fs->cdc_ofs = dj.obj.c_ofs;\r | |
4091 | }\r | |
4092 | #endif\r | |
4093 | } else {\r | |
4094 | if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */\r | |
4095 | #if FF_FS_EXFAT\r | |
4096 | if (fs->fs_type == FS_EXFAT) {\r | |
4097 | fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */\r | |
4098 | fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */\r | |
4099 | fs->cdc_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;\r | |
4100 | fs->cdc_ofs = dj.blk_ofs;\r | |
4101 | } else\r | |
4102 | #endif\r | |
4103 | {\r | |
4104 | fs->cdir = ld_clust(fs, dj.dir); /* Sub-directory cluster */\r | |
4105 | }\r | |
4106 | } else {\r | |
4107 | res = FR_NO_PATH; /* Reached but a file */\r | |
4108 | }\r | |
4109 | }\r | |
4110 | }\r | |
4111 | FREE_NAMBUF();\r | |
4112 | if (res == FR_NO_FILE) res = FR_NO_PATH;\r | |
4113 | #if FF_STR_VOLUME_ID == 2 /* Also current drive is changed at Unix style volume ID */\r | |
4114 | if (res == FR_OK) {\r | |
4115 | for (i = FF_VOLUMES - 1; i && fs != FatFs[i]; i--) ; /* Set current drive */\r | |
4116 | CurrVol = (BYTE)i;\r | |
4117 | }\r | |
4118 | #endif\r | |
4119 | }\r | |
4120 | \r | |
4121 | LEAVE_FF(fs, res);\r | |
4122 | }\r | |
4123 | \r | |
4124 | \r | |
4125 | #if FF_FS_RPATH >= 2\r | |
4126 | FRESULT f_getcwd (\r | |
4127 | TCHAR* buff, /* Pointer to the directory path */\r | |
4128 | UINT len /* Size of buff in unit of TCHAR */\r | |
4129 | )\r | |
4130 | {\r | |
4131 | FRESULT res;\r | |
4132 | DIR dj;\r | |
4133 | FATFS *fs;\r | |
4134 | UINT i, n;\r | |
4135 | DWORD ccl;\r | |
4136 | TCHAR *tp = buff;\r | |
4137 | #if FF_VOLUMES >= 2\r | |
4138 | UINT vl;\r | |
4139 | #endif\r | |
4140 | #if FF_STR_VOLUME_ID\r | |
4141 | const char *vp;\r | |
4142 | #endif\r | |
4143 | FILINFO fno;\r | |
4144 | DEF_NAMBUF\r | |
4145 | \r | |
4146 | \r | |
4147 | /* Get logical drive */\r | |
4148 | res = find_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */\r | |
4149 | if (res == FR_OK) {\r | |
4150 | dj.obj.fs = fs;\r | |
4151 | INIT_NAMBUF(fs);\r | |
4152 | \r | |
4153 | /* Follow parent directories and create the path */\r | |
4154 | i = len; /* Bottom of buffer (directory stack base) */\r | |
4155 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */\r | |
4156 | dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */\r | |
4157 | while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */\r | |
4158 | res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */\r | |
4159 | if (res != FR_OK) break;\r | |
4160 | res = move_window(fs, dj.sect);\r | |
4161 | if (res != FR_OK) break;\r | |
4162 | dj.obj.sclust = ld_clust(fs, dj.dir); /* Goto parent directory */\r | |
4163 | res = dir_sdi(&dj, 0);\r | |
4164 | if (res != FR_OK) break;\r | |
4165 | do { /* Find the entry links to the child directory */\r | |
4166 | res = dir_read_file(&dj);\r | |
4167 | if (res != FR_OK) break;\r | |
4168 | if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */\r | |
4169 | res = dir_next(&dj, 0);\r | |
4170 | } while (res == FR_OK);\r | |
4171 | if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */\r | |
4172 | if (res != FR_OK) break;\r | |
4173 | get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */\r | |
4174 | for (n = 0; fno.fname[n]; n++) ; /* Name length */\r | |
4175 | if (i < n + 1) { /* Insufficient space to store the path name? */\r | |
4176 | res = FR_NOT_ENOUGH_CORE; break;\r | |
4177 | }\r | |
4178 | while (n) buff[--i] = fno.fname[--n]; /* Stack the name */\r | |
4179 | buff[--i] = '/';\r | |
4180 | }\r | |
4181 | }\r | |
4182 | if (res == FR_OK) {\r | |
4183 | if (i == len) buff[--i] = '/'; /* Is it the root-directory? */\r | |
4184 | #if FF_VOLUMES >= 2 /* Put drive prefix */\r | |
4185 | vl = 0;\r | |
4186 | #if FF_STR_VOLUME_ID >= 1 /* String volume ID */\r | |
4187 | for (n = 0, vp = (const char*)VolumeStr[CurrVol]; vp[n]; n++) ;\r | |
4188 | if (i >= n + 2) {\r | |
4189 | if (FF_STR_VOLUME_ID == 2) *tp++ = (TCHAR)'/';\r | |
4190 | for (vl = 0; vl < n; *tp++ = (TCHAR)vp[vl], vl++) ;\r | |
4191 | if (FF_STR_VOLUME_ID == 1) *tp++ = (TCHAR)':';\r | |
4192 | vl++;\r | |
4193 | }\r | |
4194 | #else /* Numeric volume ID */\r | |
4195 | if (i >= 3) {\r | |
4196 | *tp++ = (TCHAR)'0' + CurrVol;\r | |
4197 | *tp++ = (TCHAR)':';\r | |
4198 | vl = 2;\r | |
4199 | }\r | |
4200 | #endif\r | |
4201 | if (vl == 0) res = FR_NOT_ENOUGH_CORE;\r | |
4202 | #endif\r | |
4203 | /* Add current directory path */\r | |
4204 | if (res == FR_OK) {\r | |
4205 | do *tp++ = buff[i++]; while (i < len); /* Copy stacked path string */\r | |
4206 | }\r | |
4207 | }\r | |
4208 | FREE_NAMBUF();\r | |
4209 | }\r | |
4210 | \r | |
4211 | *tp = 0;\r | |
4212 | LEAVE_FF(fs, res);\r | |
4213 | }\r | |
4214 | \r | |
4215 | #endif /* FF_FS_RPATH >= 2 */\r | |
4216 | #endif /* FF_FS_RPATH >= 1 */\r | |
4217 | \r | |
4218 | \r | |
4219 | \r | |
4220 | #if FF_FS_MINIMIZE <= 2\r | |
4221 | /*-----------------------------------------------------------------------*/\r | |
4222 | /* Seek File Read/Write Pointer */\r | |
4223 | /*-----------------------------------------------------------------------*/\r | |
4224 | \r | |
4225 | FRESULT f_lseek (\r | |
4226 | FIL* fp, /* Pointer to the file object */\r | |
4227 | FSIZE_t ofs /* File pointer from top of file */\r | |
4228 | )\r | |
4229 | {\r | |
4230 | FRESULT res;\r | |
4231 | FATFS *fs;\r | |
4232 | DWORD clst, bcs, nsect;\r | |
4233 | FSIZE_t ifptr;\r | |
4234 | #if FF_USE_FASTSEEK\r | |
4235 | DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;\r | |
4236 | #endif\r | |
4237 | \r | |
4238 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
4239 | if (res == FR_OK) res = (FRESULT)fp->err;\r | |
4240 | #if FF_FS_EXFAT && !FF_FS_READONLY\r | |
4241 | if (res == FR_OK && fs->fs_type == FS_EXFAT) {\r | |
4242 | res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */\r | |
4243 | }\r | |
4244 | #endif\r | |
4245 | if (res != FR_OK) LEAVE_FF(fs, res);\r | |
4246 | \r | |
4247 | #if FF_USE_FASTSEEK\r | |
4248 | if (fp->cltbl) { /* Fast seek */\r | |
4249 | if (ofs == CREATE_LINKMAP) { /* Create CLMT */\r | |
4250 | tbl = fp->cltbl;\r | |
4251 | tlen = *tbl++; ulen = 2; /* Given table size and required table size */\r | |
4252 | cl = fp->obj.sclust; /* Origin of the chain */\r | |
4253 | if (cl != 0) {\r | |
4254 | do {\r | |
4255 | /* Get a fragment */\r | |
4256 | tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */\r | |
4257 | do {\r | |
4258 | pcl = cl; ncl++;\r | |
4259 | cl = get_fat(&fp->obj, cl);\r | |
4260 | if (cl <= 1) ABORT(fs, FR_INT_ERR);\r | |
4261 | if (cl == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
4262 | } while (cl == pcl + 1);\r | |
4263 | if (ulen <= tlen) { /* Store the length and top of the fragment */\r | |
4264 | *tbl++ = ncl; *tbl++ = tcl;\r | |
4265 | }\r | |
4266 | } while (cl < fs->n_fatent); /* Repeat until end of chain */\r | |
4267 | }\r | |
4268 | *fp->cltbl = ulen; /* Number of items used */\r | |
4269 | if (ulen <= tlen) {\r | |
4270 | *tbl = 0; /* Terminate table */\r | |
4271 | } else {\r | |
4272 | res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */\r | |
4273 | }\r | |
4274 | } else { /* Fast seek */\r | |
4275 | if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */\r | |
4276 | fp->fptr = ofs; /* Set file pointer */\r | |
4277 | if (ofs > 0) {\r | |
4278 | fp->clust = clmt_clust(fp, ofs - 1);\r | |
4279 | dsc = clst2sect(fs, fp->clust);\r | |
4280 | if (dsc == 0) ABORT(fs, FR_INT_ERR);\r | |
4281 | dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1);\r | |
4282 | if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */\r | |
4283 | #if !FF_FS_TINY\r | |
4284 | #if !FF_FS_READONLY\r | |
4285 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r | |
4286 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
4287 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
4288 | }\r | |
4289 | #endif\r | |
4290 | if (disk_read(fs->pdrv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */\r | |
4291 | #endif\r | |
4292 | fp->sect = dsc;\r | |
4293 | }\r | |
4294 | }\r | |
4295 | }\r | |
4296 | } else\r | |
4297 | #endif\r | |
4298 | \r | |
4299 | /* Normal Seek */\r | |
4300 | {\r | |
4301 | #if FF_FS_EXFAT\r | |
4302 | if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4 GiB - 1 if at FATxx */\r | |
4303 | #endif\r | |
4304 | if (ofs > fp->obj.objsize && (FF_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */\r | |
4305 | ofs = fp->obj.objsize;\r | |
4306 | }\r | |
4307 | ifptr = fp->fptr;\r | |
4308 | fp->fptr = nsect = 0;\r | |
4309 | if (ofs > 0) {\r | |
4310 | bcs = (DWORD)fs->csize * SS(fs); /* Cluster size (byte) */\r | |
4311 | if (ifptr > 0 &&\r | |
4312 | (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */\r | |
4313 | fp->fptr = (ifptr - 1) & ~(FSIZE_t)(bcs - 1); /* start from the current cluster */\r | |
4314 | ofs -= fp->fptr;\r | |
4315 | clst = fp->clust;\r | |
4316 | } else { /* When seek to back cluster, */\r | |
4317 | clst = fp->obj.sclust; /* start from the first cluster */\r | |
4318 | #if !FF_FS_READONLY\r | |
4319 | if (clst == 0) { /* If no cluster chain, create a new chain */\r | |
4320 | clst = create_chain(&fp->obj, 0);\r | |
4321 | if (clst == 1) ABORT(fs, FR_INT_ERR);\r | |
4322 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
4323 | fp->obj.sclust = clst;\r | |
4324 | }\r | |
4325 | #endif\r | |
4326 | fp->clust = clst;\r | |
4327 | }\r | |
4328 | if (clst != 0) {\r | |
4329 | while (ofs > bcs) { /* Cluster following loop */\r | |
4330 | ofs -= bcs; fp->fptr += bcs;\r | |
4331 | #if !FF_FS_READONLY\r | |
4332 | if (fp->flag & FA_WRITE) { /* Check if in write mode or not */\r | |
4333 | if (FF_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */\r | |
4334 | fp->obj.objsize = fp->fptr;\r | |
4335 | fp->flag |= FA_MODIFIED;\r | |
4336 | }\r | |
4337 | clst = create_chain(&fp->obj, clst); /* Follow chain with forceed stretch */\r | |
4338 | if (clst == 0) { /* Clip file size in case of disk full */\r | |
4339 | ofs = 0; break;\r | |
4340 | }\r | |
4341 | } else\r | |
4342 | #endif\r | |
4343 | {\r | |
4344 | clst = get_fat(&fp->obj, clst); /* Follow cluster chain if not in write mode */\r | |
4345 | }\r | |
4346 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
4347 | if (clst <= 1 || clst >= fs->n_fatent) ABORT(fs, FR_INT_ERR);\r | |
4348 | fp->clust = clst;\r | |
4349 | }\r | |
4350 | fp->fptr += ofs;\r | |
4351 | if (ofs % SS(fs)) {\r | |
4352 | nsect = clst2sect(fs, clst); /* Current sector */\r | |
4353 | if (nsect == 0) ABORT(fs, FR_INT_ERR);\r | |
4354 | nsect += (DWORD)(ofs / SS(fs));\r | |
4355 | }\r | |
4356 | }\r | |
4357 | }\r | |
4358 | if (!FF_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */\r | |
4359 | fp->obj.objsize = fp->fptr;\r | |
4360 | fp->flag |= FA_MODIFIED;\r | |
4361 | }\r | |
4362 | if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */\r | |
4363 | #if !FF_FS_TINY\r | |
4364 | #if !FF_FS_READONLY\r | |
4365 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r | |
4366 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
4367 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
4368 | }\r | |
4369 | #endif\r | |
4370 | if (disk_read(fs->pdrv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */\r | |
4371 | #endif\r | |
4372 | fp->sect = nsect;\r | |
4373 | }\r | |
4374 | }\r | |
4375 | \r | |
4376 | LEAVE_FF(fs, res);\r | |
4377 | }\r | |
4378 | \r | |
4379 | \r | |
4380 | \r | |
4381 | #if FF_FS_MINIMIZE <= 1\r | |
4382 | /*-----------------------------------------------------------------------*/\r | |
4383 | /* Create a Directory Object */\r | |
4384 | /*-----------------------------------------------------------------------*/\r | |
4385 | \r | |
4386 | FRESULT f_opendir (\r | |
4387 | DIR* dp, /* Pointer to directory object to create */\r | |
4388 | const TCHAR* path /* Pointer to the directory path */\r | |
4389 | )\r | |
4390 | {\r | |
4391 | FRESULT res;\r | |
4392 | FATFS *fs;\r | |
4393 | DEF_NAMBUF\r | |
4394 | \r | |
4395 | \r | |
4396 | if (!dp) return FR_INVALID_OBJECT;\r | |
4397 | \r | |
4398 | /* Get logical drive */\r | |
4399 | res = find_volume(&path, &fs, 0);\r | |
4400 | if (res == FR_OK) {\r | |
4401 | dp->obj.fs = fs;\r | |
4402 | INIT_NAMBUF(fs);\r | |
4403 | res = follow_path(dp, path); /* Follow the path to the directory */\r | |
4404 | if (res == FR_OK) { /* Follow completed */\r | |
4405 | if (!(dp->fn[NSFLAG] & NS_NONAME)) { /* It is not the origin directory itself */\r | |
4406 | if (dp->obj.attr & AM_DIR) { /* This object is a sub-directory */\r | |
4407 | #if FF_FS_EXFAT\r | |
4408 | if (fs->fs_type == FS_EXFAT) {\r | |
4409 | dp->obj.c_scl = dp->obj.sclust; /* Get containing directory inforamation */\r | |
4410 | dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;\r | |
4411 | dp->obj.c_ofs = dp->blk_ofs;\r | |
4412 | init_alloc_info(fs, &dp->obj); /* Get object allocation info */\r | |
4413 | } else\r | |
4414 | #endif\r | |
4415 | {\r | |
4416 | dp->obj.sclust = ld_clust(fs, dp->dir); /* Get object allocation info */\r | |
4417 | }\r | |
4418 | } else { /* This object is a file */\r | |
4419 | res = FR_NO_PATH;\r | |
4420 | }\r | |
4421 | }\r | |
4422 | if (res == FR_OK) {\r | |
4423 | dp->obj.id = fs->id;\r | |
4424 | res = dir_sdi(dp, 0); /* Rewind directory */\r | |
4425 | #if FF_FS_LOCK != 0\r | |
4426 | if (res == FR_OK) {\r | |
4427 | if (dp->obj.sclust != 0) {\r | |
4428 | dp->obj.lockid = inc_lock(dp, 0); /* Lock the sub directory */\r | |
4429 | if (!dp->obj.lockid) res = FR_TOO_MANY_OPEN_FILES;\r | |
4430 | } else {\r | |
4431 | dp->obj.lockid = 0; /* Root directory need not to be locked */\r | |
4432 | }\r | |
4433 | }\r | |
4434 | #endif\r | |
4435 | }\r | |
4436 | }\r | |
4437 | FREE_NAMBUF();\r | |
4438 | if (res == FR_NO_FILE) res = FR_NO_PATH;\r | |
4439 | }\r | |
4440 | if (res != FR_OK) dp->obj.fs = 0; /* Invalidate the directory object if function faild */\r | |
4441 | \r | |
4442 | LEAVE_FF(fs, res);\r | |
4443 | }\r | |
4444 | \r | |
4445 | \r | |
4446 | \r | |
4447 | \r | |
4448 | /*-----------------------------------------------------------------------*/\r | |
4449 | /* Close Directory */\r | |
4450 | /*-----------------------------------------------------------------------*/\r | |
4451 | \r | |
4452 | FRESULT f_closedir (\r | |
4453 | DIR *dp /* Pointer to the directory object to be closed */\r | |
4454 | )\r | |
4455 | {\r | |
4456 | FRESULT res;\r | |
4457 | FATFS *fs;\r | |
4458 | \r | |
4459 | \r | |
4460 | res = validate(&dp->obj, &fs); /* Check validity of the file object */\r | |
4461 | if (res == FR_OK) {\r | |
4462 | #if FF_FS_LOCK != 0\r | |
4463 | if (dp->obj.lockid) res = dec_lock(dp->obj.lockid); /* Decrement sub-directory open counter */\r | |
4464 | if (res == FR_OK) dp->obj.fs = 0; /* Invalidate directory object */\r | |
4465 | #else\r | |
4466 | dp->obj.fs = 0; /* Invalidate directory object */\r | |
4467 | #endif\r | |
4468 | #if FF_FS_REENTRANT\r | |
4469 | unlock_fs(fs, FR_OK); /* Unlock volume */\r | |
4470 | #endif\r | |
4471 | }\r | |
4472 | return res;\r | |
4473 | }\r | |
4474 | \r | |
4475 | \r | |
4476 | \r | |
4477 | \r | |
4478 | /*-----------------------------------------------------------------------*/\r | |
4479 | /* Read Directory Entries in Sequence */\r | |
4480 | /*-----------------------------------------------------------------------*/\r | |
4481 | \r | |
4482 | FRESULT f_readdir (\r | |
4483 | DIR* dp, /* Pointer to the open directory object */\r | |
4484 | FILINFO* fno /* Pointer to file information to return */\r | |
4485 | )\r | |
4486 | {\r | |
4487 | FRESULT res;\r | |
4488 | FATFS *fs;\r | |
4489 | DEF_NAMBUF\r | |
4490 | \r | |
4491 | \r | |
4492 | res = validate(&dp->obj, &fs); /* Check validity of the directory object */\r | |
4493 | if (res == FR_OK) {\r | |
4494 | if (!fno) {\r | |
4495 | res = dir_sdi(dp, 0); /* Rewind the directory object */\r | |
4496 | } else {\r | |
4497 | INIT_NAMBUF(fs);\r | |
4498 | res = dir_read_file(dp); /* Read an item */\r | |
4499 | if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory */\r | |
4500 | if (res == FR_OK) { /* A valid entry is found */\r | |
4501 | get_fileinfo(dp, fno); /* Get the object information */\r | |
4502 | res = dir_next(dp, 0); /* Increment index for next */\r | |
4503 | if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory now */\r | |
4504 | }\r | |
4505 | FREE_NAMBUF();\r | |
4506 | }\r | |
4507 | }\r | |
4508 | LEAVE_FF(fs, res);\r | |
4509 | }\r | |
4510 | \r | |
4511 | \r | |
4512 | \r | |
4513 | #if FF_USE_FIND\r | |
4514 | /*-----------------------------------------------------------------------*/\r | |
4515 | /* Find Next File */\r | |
4516 | /*-----------------------------------------------------------------------*/\r | |
4517 | \r | |
4518 | FRESULT f_findnext (\r | |
4519 | DIR* dp, /* Pointer to the open directory object */\r | |
4520 | FILINFO* fno /* Pointer to the file information structure */\r | |
4521 | )\r | |
4522 | {\r | |
4523 | FRESULT res;\r | |
4524 | \r | |
4525 | \r | |
4526 | for (;;) {\r | |
4527 | res = f_readdir(dp, fno); /* Get a directory item */\r | |
4528 | if (res != FR_OK || !fno || !fno->fname[0]) break; /* Terminate if any error or end of directory */\r | |
4529 | if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for the file name */\r | |
4530 | #if FF_USE_LFN && FF_USE_FIND == 2\r | |
4531 | if (pattern_matching(dp->pat, fno->altname, 0, 0)) break; /* Test for alternative name if exist */\r | |
4532 | #endif\r | |
4533 | }\r | |
4534 | return res;\r | |
4535 | }\r | |
4536 | \r | |
4537 | \r | |
4538 | \r | |
4539 | /*-----------------------------------------------------------------------*/\r | |
4540 | /* Find First File */\r | |
4541 | /*-----------------------------------------------------------------------*/\r | |
4542 | \r | |
4543 | FRESULT f_findfirst (\r | |
4544 | DIR* dp, /* Pointer to the blank directory object */\r | |
4545 | FILINFO* fno, /* Pointer to the file information structure */\r | |
4546 | const TCHAR* path, /* Pointer to the directory to open */\r | |
4547 | const TCHAR* pattern /* Pointer to the matching pattern */\r | |
4548 | )\r | |
4549 | {\r | |
4550 | FRESULT res;\r | |
4551 | \r | |
4552 | \r | |
4553 | dp->pat = pattern; /* Save pointer to pattern string */\r | |
4554 | res = f_opendir(dp, path); /* Open the target directory */\r | |
4555 | if (res == FR_OK) {\r | |
4556 | res = f_findnext(dp, fno); /* Find the first item */\r | |
4557 | }\r | |
4558 | return res;\r | |
4559 | }\r | |
4560 | \r | |
4561 | #endif /* FF_USE_FIND */\r | |
4562 | \r | |
4563 | \r | |
4564 | \r | |
4565 | #if FF_FS_MINIMIZE == 0\r | |
4566 | /*-----------------------------------------------------------------------*/\r | |
4567 | /* Get File Status */\r | |
4568 | /*-----------------------------------------------------------------------*/\r | |
4569 | \r | |
4570 | FRESULT f_stat (\r | |
4571 | const TCHAR* path, /* Pointer to the file path */\r | |
4572 | FILINFO* fno /* Pointer to file information to return */\r | |
4573 | )\r | |
4574 | {\r | |
4575 | FRESULT res;\r | |
4576 | DIR dj;\r | |
4577 | DEF_NAMBUF\r | |
4578 | \r | |
4579 | \r | |
4580 | /* Get logical drive */\r | |
4581 | res = find_volume(&path, &dj.obj.fs, 0);\r | |
4582 | if (res == FR_OK) {\r | |
4583 | INIT_NAMBUF(dj.obj.fs);\r | |
4584 | res = follow_path(&dj, path); /* Follow the file path */\r | |
4585 | if (res == FR_OK) { /* Follow completed */\r | |
4586 | if (dj.fn[NSFLAG] & NS_NONAME) { /* It is origin directory */\r | |
4587 | res = FR_INVALID_NAME;\r | |
4588 | } else { /* Found an object */\r | |
4589 | if (fno) get_fileinfo(&dj, fno);\r | |
4590 | }\r | |
4591 | }\r | |
4592 | FREE_NAMBUF();\r | |
4593 | }\r | |
4594 | \r | |
4595 | LEAVE_FF(dj.obj.fs, res);\r | |
4596 | }\r | |
4597 | \r | |
4598 | \r | |
4599 | \r | |
4600 | #if !FF_FS_READONLY\r | |
4601 | /*-----------------------------------------------------------------------*/\r | |
4602 | /* Get Number of Free Clusters */\r | |
4603 | /*-----------------------------------------------------------------------*/\r | |
4604 | \r | |
4605 | FRESULT f_getfree (\r | |
4606 | const TCHAR* path, /* Logical drive number */\r | |
4607 | DWORD* nclst, /* Pointer to a variable to return number of free clusters */\r | |
4608 | FATFS** fatfs /* Pointer to return pointer to corresponding filesystem object */\r | |
4609 | )\r | |
4610 | {\r | |
4611 | FRESULT res;\r | |
4612 | FATFS *fs;\r | |
4613 | DWORD nfree, clst, sect, stat;\r | |
4614 | UINT i;\r | |
4615 | FFOBJID obj;\r | |
4616 | \r | |
4617 | \r | |
4618 | /* Get logical drive */\r | |
4619 | res = find_volume(&path, &fs, 0);\r | |
4620 | if (res == FR_OK) {\r | |
4621 | *fatfs = fs; /* Return ptr to the fs object */\r | |
4622 | /* If free_clst is valid, return it without full FAT scan */\r | |
4623 | if (fs->free_clst <= fs->n_fatent - 2) {\r | |
4624 | *nclst = fs->free_clst;\r | |
4625 | } else {\r | |
4626 | /* Scan FAT to obtain number of free clusters */\r | |
4627 | nfree = 0;\r | |
4628 | if (fs->fs_type == FS_FAT12) { /* FAT12: Scan bit field FAT entries */\r | |
4629 | clst = 2; obj.fs = fs;\r | |
4630 | do {\r | |
4631 | stat = get_fat(&obj, clst);\r | |
4632 | if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }\r | |
4633 | if (stat == 1) { res = FR_INT_ERR; break; }\r | |
4634 | if (stat == 0) nfree++;\r | |
4635 | } while (++clst < fs->n_fatent);\r | |
4636 | } else {\r | |
4637 | #if FF_FS_EXFAT\r | |
4638 | if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan allocation bitmap */\r | |
4639 | BYTE bm;\r | |
4640 | UINT b;\r | |
4641 | \r | |
4642 | clst = fs->n_fatent - 2; /* Number of clusters */\r | |
4643 | sect = fs->database; /* Assuming bitmap starts at cluster 2 */\r | |
4644 | i = 0; /* Offset in the sector */\r | |
4645 | do { /* Counts numbuer of bits with zero in the bitmap */\r | |
4646 | if (i == 0) {\r | |
4647 | res = move_window(fs, sect++);\r | |
4648 | if (res != FR_OK) break;\r | |
4649 | }\r | |
4650 | for (b = 8, bm = fs->win[i]; b && clst; b--, clst--) {\r | |
4651 | if (!(bm & 1)) nfree++;\r | |
4652 | bm >>= 1;\r | |
4653 | }\r | |
4654 | i = (i + 1) % SS(fs);\r | |
4655 | } while (clst);\r | |
4656 | } else\r | |
4657 | #endif\r | |
4658 | { /* FAT16/32: Scan WORD/DWORD FAT entries */\r | |
4659 | clst = fs->n_fatent; /* Number of entries */\r | |
4660 | sect = fs->fatbase; /* Top of the FAT */\r | |
4661 | i = 0; /* Offset in the sector */\r | |
4662 | do { /* Counts numbuer of entries with zero in the FAT */\r | |
4663 | if (i == 0) {\r | |
4664 | res = move_window(fs, sect++);\r | |
4665 | if (res != FR_OK) break;\r | |
4666 | }\r | |
4667 | if (fs->fs_type == FS_FAT16) {\r | |
4668 | if (ld_word(fs->win + i) == 0) nfree++;\r | |
4669 | i += 2;\r | |
4670 | } else {\r | |
4671 | if ((ld_dword(fs->win + i) & 0x0FFFFFFF) == 0) nfree++;\r | |
4672 | i += 4;\r | |
4673 | }\r | |
4674 | i %= SS(fs);\r | |
4675 | } while (--clst);\r | |
4676 | }\r | |
4677 | }\r | |
4678 | *nclst = nfree; /* Return the free clusters */\r | |
4679 | fs->free_clst = nfree; /* Now free_clst is valid */\r | |
4680 | fs->fsi_flag |= 1; /* FAT32: FSInfo is to be updated */\r | |
4681 | }\r | |
4682 | }\r | |
4683 | \r | |
4684 | LEAVE_FF(fs, res);\r | |
4685 | }\r | |
4686 | \r | |
4687 | \r | |
4688 | \r | |
4689 | \r | |
4690 | /*-----------------------------------------------------------------------*/\r | |
4691 | /* Truncate File */\r | |
4692 | /*-----------------------------------------------------------------------*/\r | |
4693 | \r | |
4694 | FRESULT f_truncate (\r | |
4695 | FIL* fp /* Pointer to the file object */\r | |
4696 | )\r | |
4697 | {\r | |
4698 | FRESULT res;\r | |
4699 | FATFS *fs;\r | |
4700 | DWORD ncl;\r | |
4701 | \r | |
4702 | \r | |
4703 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
4704 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
4705 | if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
4706 | \r | |
4707 | if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */\r | |
4708 | if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */\r | |
4709 | res = remove_chain(&fp->obj, fp->obj.sclust, 0);\r | |
4710 | fp->obj.sclust = 0;\r | |
4711 | } else { /* When truncate a part of the file, remove remaining clusters */\r | |
4712 | ncl = get_fat(&fp->obj, fp->clust);\r | |
4713 | res = FR_OK;\r | |
4714 | if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
4715 | if (ncl == 1) res = FR_INT_ERR;\r | |
4716 | if (res == FR_OK && ncl < fs->n_fatent) {\r | |
4717 | res = remove_chain(&fp->obj, ncl, fp->clust);\r | |
4718 | }\r | |
4719 | }\r | |
4720 | fp->obj.objsize = fp->fptr; /* Set file size to current read/write point */\r | |
4721 | fp->flag |= FA_MODIFIED;\r | |
4722 | #if !FF_FS_TINY\r | |
4723 | if (res == FR_OK && (fp->flag & FA_DIRTY)) {\r | |
4724 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) {\r | |
4725 | res = FR_DISK_ERR;\r | |
4726 | } else {\r | |
4727 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
4728 | }\r | |
4729 | }\r | |
4730 | #endif\r | |
4731 | if (res != FR_OK) ABORT(fs, res);\r | |
4732 | }\r | |
4733 | \r | |
4734 | LEAVE_FF(fs, res);\r | |
4735 | }\r | |
4736 | \r | |
4737 | \r | |
4738 | \r | |
4739 | \r | |
4740 | /*-----------------------------------------------------------------------*/\r | |
4741 | /* Delete a File/Directory */\r | |
4742 | /*-----------------------------------------------------------------------*/\r | |
4743 | \r | |
4744 | FRESULT f_unlink (\r | |
4745 | const TCHAR* path /* Pointer to the file or directory path */\r | |
4746 | )\r | |
4747 | {\r | |
4748 | FRESULT res;\r | |
4749 | DIR dj, sdj;\r | |
4750 | DWORD dclst = 0;\r | |
4751 | FATFS *fs;\r | |
4752 | #if FF_FS_EXFAT\r | |
4753 | FFOBJID obj;\r | |
4754 | #endif\r | |
4755 | DEF_NAMBUF\r | |
4756 | \r | |
4757 | \r | |
4758 | /* Get logical drive */\r | |
4759 | res = find_volume(&path, &fs, FA_WRITE);\r | |
4760 | if (res == FR_OK) {\r | |
4761 | dj.obj.fs = fs;\r | |
4762 | INIT_NAMBUF(fs);\r | |
4763 | res = follow_path(&dj, path); /* Follow the file path */\r | |
4764 | if (FF_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) {\r | |
4765 | res = FR_INVALID_NAME; /* Cannot remove dot entry */\r | |
4766 | }\r | |
4767 | #if FF_FS_LOCK != 0\r | |
4768 | if (res == FR_OK) res = chk_lock(&dj, 2); /* Check if it is an open object */\r | |
4769 | #endif\r | |
4770 | if (res == FR_OK) { /* The object is accessible */\r | |
4771 | if (dj.fn[NSFLAG] & NS_NONAME) {\r | |
4772 | res = FR_INVALID_NAME; /* Cannot remove the origin directory */\r | |
4773 | } else {\r | |
4774 | if (dj.obj.attr & AM_RDO) {\r | |
4775 | res = FR_DENIED; /* Cannot remove R/O object */\r | |
4776 | }\r | |
4777 | }\r | |
4778 | if (res == FR_OK) {\r | |
4779 | #if FF_FS_EXFAT\r | |
4780 | obj.fs = fs;\r | |
4781 | if (fs->fs_type == FS_EXFAT) {\r | |
4782 | init_alloc_info(fs, &obj);\r | |
4783 | dclst = obj.sclust;\r | |
4784 | } else\r | |
4785 | #endif\r | |
4786 | {\r | |
4787 | dclst = ld_clust(fs, dj.dir);\r | |
4788 | }\r | |
4789 | if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory? */\r | |
4790 | #if FF_FS_RPATH != 0\r | |
4791 | if (dclst == fs->cdir) { /* Is it the current directory? */\r | |
4792 | res = FR_DENIED;\r | |
4793 | } else\r | |
4794 | #endif\r | |
4795 | {\r | |
4796 | sdj.obj.fs = fs; /* Open the sub-directory */\r | |
4797 | sdj.obj.sclust = dclst;\r | |
4798 | #if FF_FS_EXFAT\r | |
4799 | if (fs->fs_type == FS_EXFAT) {\r | |
4800 | sdj.obj.objsize = obj.objsize;\r | |
4801 | sdj.obj.stat = obj.stat;\r | |
4802 | }\r | |
4803 | #endif\r | |
4804 | res = dir_sdi(&sdj, 0);\r | |
4805 | if (res == FR_OK) {\r | |
4806 | res = dir_read_file(&sdj); /* Test if the directory is empty */\r | |
4807 | if (res == FR_OK) res = FR_DENIED; /* Not empty? */\r | |
4808 | if (res == FR_NO_FILE) res = FR_OK; /* Empty? */\r | |
4809 | }\r | |
4810 | }\r | |
4811 | }\r | |
4812 | }\r | |
4813 | if (res == FR_OK) {\r | |
4814 | res = dir_remove(&dj); /* Remove the directory entry */\r | |
4815 | if (res == FR_OK && dclst != 0) { /* Remove the cluster chain if exist */\r | |
4816 | #if FF_FS_EXFAT\r | |
4817 | res = remove_chain(&obj, dclst, 0);\r | |
4818 | #else\r | |
4819 | res = remove_chain(&dj.obj, dclst, 0);\r | |
4820 | #endif\r | |
4821 | }\r | |
4822 | if (res == FR_OK) res = sync_fs(fs);\r | |
4823 | }\r | |
4824 | }\r | |
4825 | FREE_NAMBUF();\r | |
4826 | }\r | |
4827 | \r | |
4828 | LEAVE_FF(fs, res);\r | |
4829 | }\r | |
4830 | \r | |
4831 | \r | |
4832 | \r | |
4833 | \r | |
4834 | /*-----------------------------------------------------------------------*/\r | |
4835 | /* Create a Directory */\r | |
4836 | /*-----------------------------------------------------------------------*/\r | |
4837 | \r | |
4838 | FRESULT f_mkdir (\r | |
4839 | const TCHAR* path /* Pointer to the directory path */\r | |
4840 | )\r | |
4841 | {\r | |
4842 | FRESULT res;\r | |
4843 | DIR dj;\r | |
4844 | FATFS *fs;\r | |
4845 | BYTE *dir;\r | |
4846 | DWORD dcl, pcl, tm;\r | |
4847 | DEF_NAMBUF\r | |
4848 | \r | |
4849 | \r | |
4850 | /* Get logical drive */\r | |
4851 | res = find_volume(&path, &fs, FA_WRITE);\r | |
4852 | if (res == FR_OK) {\r | |
4853 | dj.obj.fs = fs;\r | |
4854 | INIT_NAMBUF(fs);\r | |
4855 | res = follow_path(&dj, path); /* Follow the file path */\r | |
4856 | if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */\r | |
4857 | if (FF_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT)) {\r | |
4858 | res = FR_INVALID_NAME;\r | |
4859 | }\r | |
4860 | if (res == FR_NO_FILE) { /* Can create a new directory */\r | |
4861 | dcl = create_chain(&dj.obj, 0); /* Allocate a cluster for the new directory table */\r | |
4862 | dj.obj.objsize = (DWORD)fs->csize * SS(fs);\r | |
4863 | res = FR_OK;\r | |
4864 | if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */\r | |
4865 | if (dcl == 1) res = FR_INT_ERR;\r | |
4866 | if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
4867 | if (res == FR_OK) res = sync_window(fs); /* Flush FAT */\r | |
4868 | tm = GET_FATTIME();\r | |
4869 | if (res == FR_OK) { /* Initialize the new directory table */\r | |
4870 | res = dir_clear(fs, dcl); /* Clean up the new table */\r | |
4871 | if (res == FR_OK && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT)) { /* Create dot entries (FAT only) */\r | |
4872 | dir = fs->win;\r | |
4873 | mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */\r | |
4874 | dir[DIR_Name] = '.';\r | |
4875 | dir[DIR_Attr] = AM_DIR;\r | |
4876 | st_dword(dir + DIR_ModTime, tm);\r | |
4877 | st_clust(fs, dir, dcl);\r | |
4878 | mem_cpy(dir + SZDIRE, dir, SZDIRE); /* Create ".." entry */\r | |
4879 | dir[SZDIRE + 1] = '.'; pcl = dj.obj.sclust;\r | |
4880 | st_clust(fs, dir + SZDIRE, pcl);\r | |
4881 | fs->wflag = 1;\r | |
4882 | }\r | |
4883 | }\r | |
4884 | if (res == FR_OK) {\r | |
4885 | res = dir_register(&dj); /* Register the object to the directoy */\r | |
4886 | }\r | |
4887 | if (res == FR_OK) {\r | |
4888 | #if FF_FS_EXFAT\r | |
4889 | if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */\r | |
4890 | st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */\r | |
4891 | st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */\r | |
4892 | st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)dj.obj.objsize); /* File size needs to be valid */\r | |
4893 | st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)dj.obj.objsize);\r | |
4894 | fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */\r | |
4895 | fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */\r | |
4896 | res = store_xdir(&dj);\r | |
4897 | } else\r | |
4898 | #endif\r | |
4899 | {\r | |
4900 | dir = dj.dir;\r | |
4901 | st_dword(dir + DIR_ModTime, tm); /* Created time */\r | |
4902 | st_clust(fs, dir, dcl); /* Table start cluster */\r | |
4903 | dir[DIR_Attr] = AM_DIR; /* Attribute */\r | |
4904 | fs->wflag = 1;\r | |
4905 | }\r | |
4906 | if (res == FR_OK) {\r | |
4907 | res = sync_fs(fs);\r | |
4908 | }\r | |
4909 | } else {\r | |
4910 | remove_chain(&dj.obj, dcl, 0); /* Could not register, remove cluster chain */\r | |
4911 | }\r | |
4912 | }\r | |
4913 | FREE_NAMBUF();\r | |
4914 | }\r | |
4915 | \r | |
4916 | LEAVE_FF(fs, res);\r | |
4917 | }\r | |
4918 | \r | |
4919 | \r | |
4920 | \r | |
4921 | \r | |
4922 | /*-----------------------------------------------------------------------*/\r | |
4923 | /* Rename a File/Directory */\r | |
4924 | /*-----------------------------------------------------------------------*/\r | |
4925 | \r | |
4926 | FRESULT f_rename (\r | |
4927 | const TCHAR* path_old, /* Pointer to the object name to be renamed */\r | |
4928 | const TCHAR* path_new /* Pointer to the new name */\r | |
4929 | )\r | |
4930 | {\r | |
4931 | FRESULT res;\r | |
4932 | DIR djo, djn;\r | |
4933 | FATFS *fs;\r | |
4934 | BYTE buf[FF_FS_EXFAT ? SZDIRE * 2 : SZDIRE], *dir;\r | |
4935 | DWORD dw;\r | |
4936 | DEF_NAMBUF\r | |
4937 | \r | |
4938 | \r | |
4939 | get_ldnumber(&path_new); /* Snip the drive number of new name off */\r | |
4940 | res = find_volume(&path_old, &fs, FA_WRITE); /* Get logical drive of the old object */\r | |
4941 | if (res == FR_OK) {\r | |
4942 | djo.obj.fs = fs;\r | |
4943 | INIT_NAMBUF(fs);\r | |
4944 | res = follow_path(&djo, path_old); /* Check old object */\r | |
4945 | if (res == FR_OK && (djo.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check validity of name */\r | |
4946 | #if FF_FS_LOCK != 0\r | |
4947 | if (res == FR_OK) {\r | |
4948 | res = chk_lock(&djo, 2);\r | |
4949 | }\r | |
4950 | #endif\r | |
4951 | if (res == FR_OK) { /* Object to be renamed is found */\r | |
4952 | #if FF_FS_EXFAT\r | |
4953 | if (fs->fs_type == FS_EXFAT) { /* At exFAT volume */\r | |
4954 | BYTE nf, nn;\r | |
4955 | WORD nh;\r | |
4956 | \r | |
4957 | mem_cpy(buf, fs->dirbuf, SZDIRE * 2); /* Save 85+C0 entry of old object */\r | |
4958 | mem_cpy(&djn, &djo, sizeof djo);\r | |
4959 | res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */\r | |
4960 | if (res == FR_OK) { /* Is new name already in use by any other object? */\r | |
4961 | res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;\r | |
4962 | }\r | |
4963 | if (res == FR_NO_FILE) { /* It is a valid path and no name collision */\r | |
4964 | res = dir_register(&djn); /* Register the new entry */\r | |
4965 | if (res == FR_OK) {\r | |
4966 | nf = fs->dirbuf[XDIR_NumSec]; nn = fs->dirbuf[XDIR_NumName];\r | |
4967 | nh = ld_word(fs->dirbuf + XDIR_NameHash);\r | |
4968 | mem_cpy(fs->dirbuf, buf, SZDIRE * 2); /* Restore 85+C0 entry */\r | |
4969 | fs->dirbuf[XDIR_NumSec] = nf; fs->dirbuf[XDIR_NumName] = nn;\r | |
4970 | st_word(fs->dirbuf + XDIR_NameHash, nh);\r | |
4971 | if (!(fs->dirbuf[XDIR_Attr] & AM_DIR)) fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */\r | |
4972 | /* Start of critical section where an interruption can cause a cross-link */\r | |
4973 | res = store_xdir(&djn);\r | |
4974 | }\r | |
4975 | }\r | |
4976 | } else\r | |
4977 | #endif\r | |
4978 | { /* At FAT/FAT32 volume */\r | |
4979 | mem_cpy(buf, djo.dir, SZDIRE); /* Save directory entry of the object */\r | |
4980 | mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */\r | |
4981 | res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */\r | |
4982 | if (res == FR_OK) { /* Is new name already in use by any other object? */\r | |
4983 | res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;\r | |
4984 | }\r | |
4985 | if (res == FR_NO_FILE) { /* It is a valid path and no name collision */\r | |
4986 | res = dir_register(&djn); /* Register the new entry */\r | |
4987 | if (res == FR_OK) {\r | |
4988 | dir = djn.dir; /* Copy directory entry of the object except name */\r | |
4989 | mem_cpy(dir + 13, buf + 13, SZDIRE - 13);\r | |
4990 | dir[DIR_Attr] = buf[DIR_Attr];\r | |
4991 | if (!(dir[DIR_Attr] & AM_DIR)) dir[DIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */\r | |
4992 | fs->wflag = 1;\r | |
4993 | if ((dir[DIR_Attr] & AM_DIR) && djo.obj.sclust != djn.obj.sclust) { /* Update .. entry in the sub-directory if needed */\r | |
4994 | dw = clst2sect(fs, ld_clust(fs, dir));\r | |
4995 | if (dw == 0) {\r | |
4996 | res = FR_INT_ERR;\r | |
4997 | } else {\r | |
4998 | /* Start of critical section where an interruption can cause a cross-link */\r | |
4999 | res = move_window(fs, dw);\r | |
5000 | dir = fs->win + SZDIRE * 1; /* Ptr to .. entry */\r | |
5001 | if (res == FR_OK && dir[1] == '.') {\r | |
5002 | st_clust(fs, dir, djn.obj.sclust);\r | |
5003 | fs->wflag = 1;\r | |
5004 | }\r | |
5005 | }\r | |
5006 | }\r | |
5007 | }\r | |
5008 | }\r | |
5009 | }\r | |
5010 | if (res == FR_OK) {\r | |
5011 | res = dir_remove(&djo); /* Remove old entry */\r | |
5012 | if (res == FR_OK) {\r | |
5013 | res = sync_fs(fs);\r | |
5014 | }\r | |
5015 | }\r | |
5016 | /* End of the critical section */\r | |
5017 | }\r | |
5018 | FREE_NAMBUF();\r | |
5019 | }\r | |
5020 | \r | |
5021 | LEAVE_FF(fs, res);\r | |
5022 | }\r | |
5023 | \r | |
5024 | #endif /* !FF_FS_READONLY */\r | |
5025 | #endif /* FF_FS_MINIMIZE == 0 */\r | |
5026 | #endif /* FF_FS_MINIMIZE <= 1 */\r | |
5027 | #endif /* FF_FS_MINIMIZE <= 2 */\r | |
5028 | \r | |
5029 | \r | |
5030 | \r | |
5031 | #if FF_USE_CHMOD && !FF_FS_READONLY\r | |
5032 | /*-----------------------------------------------------------------------*/\r | |
5033 | /* Change Attribute */\r | |
5034 | /*-----------------------------------------------------------------------*/\r | |
5035 | \r | |
5036 | FRESULT f_chmod (\r | |
5037 | const TCHAR* path, /* Pointer to the file path */\r | |
5038 | BYTE attr, /* Attribute bits */\r | |
5039 | BYTE mask /* Attribute mask to change */\r | |
5040 | )\r | |
5041 | {\r | |
5042 | FRESULT res;\r | |
5043 | DIR dj;\r | |
5044 | FATFS *fs;\r | |
5045 | DEF_NAMBUF\r | |
5046 | \r | |
5047 | \r | |
5048 | res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */\r | |
5049 | if (res == FR_OK) {\r | |
5050 | dj.obj.fs = fs;\r | |
5051 | INIT_NAMBUF(fs);\r | |
5052 | res = follow_path(&dj, path); /* Follow the file path */\r | |
5053 | if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */\r | |
5054 | if (res == FR_OK) {\r | |
5055 | mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */\r | |
5056 | #if FF_FS_EXFAT\r | |
5057 | if (fs->fs_type == FS_EXFAT) {\r | |
5058 | fs->dirbuf[XDIR_Attr] = (attr & mask) | (fs->dirbuf[XDIR_Attr] & (BYTE)~mask); /* Apply attribute change */\r | |
5059 | res = store_xdir(&dj);\r | |
5060 | } else\r | |
5061 | #endif\r | |
5062 | {\r | |
5063 | dj.dir[DIR_Attr] = (attr & mask) | (dj.dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */\r | |
5064 | fs->wflag = 1;\r | |
5065 | }\r | |
5066 | if (res == FR_OK) {\r | |
5067 | res = sync_fs(fs);\r | |
5068 | }\r | |
5069 | }\r | |
5070 | FREE_NAMBUF();\r | |
5071 | }\r | |
5072 | \r | |
5073 | LEAVE_FF(fs, res);\r | |
5074 | }\r | |
5075 | \r | |
5076 | \r | |
5077 | \r | |
5078 | \r | |
5079 | /*-----------------------------------------------------------------------*/\r | |
5080 | /* Change Timestamp */\r | |
5081 | /*-----------------------------------------------------------------------*/\r | |
5082 | \r | |
5083 | FRESULT f_utime (\r | |
5084 | const TCHAR* path, /* Pointer to the file/directory name */\r | |
5085 | const FILINFO* fno /* Pointer to the timestamp to be set */\r | |
5086 | )\r | |
5087 | {\r | |
5088 | FRESULT res;\r | |
5089 | DIR dj;\r | |
5090 | FATFS *fs;\r | |
5091 | DEF_NAMBUF\r | |
5092 | \r | |
5093 | \r | |
5094 | res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */\r | |
5095 | if (res == FR_OK) {\r | |
5096 | dj.obj.fs = fs;\r | |
5097 | INIT_NAMBUF(fs);\r | |
5098 | res = follow_path(&dj, path); /* Follow the file path */\r | |
5099 | if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */\r | |
5100 | if (res == FR_OK) {\r | |
5101 | #if FF_FS_EXFAT\r | |
5102 | if (fs->fs_type == FS_EXFAT) {\r | |
5103 | st_dword(fs->dirbuf + XDIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);\r | |
5104 | res = store_xdir(&dj);\r | |
5105 | } else\r | |
5106 | #endif\r | |
5107 | {\r | |
5108 | st_dword(dj.dir + DIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);\r | |
5109 | fs->wflag = 1;\r | |
5110 | }\r | |
5111 | if (res == FR_OK) {\r | |
5112 | res = sync_fs(fs);\r | |
5113 | }\r | |
5114 | }\r | |
5115 | FREE_NAMBUF();\r | |
5116 | }\r | |
5117 | \r | |
5118 | LEAVE_FF(fs, res);\r | |
5119 | }\r | |
5120 | \r | |
5121 | #endif /* FF_USE_CHMOD && !FF_FS_READONLY */\r | |
5122 | \r | |
5123 | \r | |
5124 | \r | |
5125 | #if FF_USE_LABEL\r | |
5126 | /*-----------------------------------------------------------------------*/\r | |
5127 | /* Get Volume Label */\r | |
5128 | /*-----------------------------------------------------------------------*/\r | |
5129 | \r | |
5130 | FRESULT f_getlabel (\r | |
5131 | const TCHAR* path, /* Logical drive number */\r | |
5132 | TCHAR* label, /* Buffer to store the volume label */\r | |
5133 | DWORD* vsn /* Variable to store the volume serial number */\r | |
5134 | )\r | |
5135 | {\r | |
5136 | FRESULT res;\r | |
5137 | DIR dj;\r | |
5138 | FATFS *fs;\r | |
5139 | UINT si, di;\r | |
5140 | WCHAR wc;\r | |
5141 | \r | |
5142 | /* Get logical drive */\r | |
5143 | res = find_volume(&path, &fs, 0);\r | |
5144 | \r | |
5145 | /* Get volume label */\r | |
5146 | if (res == FR_OK && label) {\r | |
5147 | dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */\r | |
5148 | res = dir_sdi(&dj, 0);\r | |
5149 | if (res == FR_OK) {\r | |
5150 | res = dir_read_label(&dj); /* Find a volume label entry */\r | |
5151 | if (res == FR_OK) {\r | |
5152 | #if FF_FS_EXFAT\r | |
5153 | if (fs->fs_type == FS_EXFAT) {\r | |
5154 | WCHAR hs;\r | |
5155 | \r | |
5156 | for (si = di = hs = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */\r | |
5157 | wc = ld_word(dj.dir + XDIR_Label + si * 2);\r | |
5158 | if (hs == 0 && IsSurrogate(wc)) { /* Is the code a surrogate? */\r | |
5159 | hs = wc; continue;\r | |
5160 | }\r | |
5161 | wc = put_utf((DWORD)hs << 16 | wc, &label[di], 4);\r | |
5162 | if (wc == 0) { di = 0; break; }\r | |
5163 | di += wc;\r | |
5164 | hs = 0;\r | |
5165 | }\r | |
5166 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r | |
5167 | label[di] = 0;\r | |
5168 | } else\r | |
5169 | #endif\r | |
5170 | {\r | |
5171 | si = di = 0; /* Extract volume label from AM_VOL entry */\r | |
5172 | while (si < 11) {\r | |
5173 | wc = dj.dir[si++];\r | |
5174 | #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode output */\r | |
5175 | if (dbc_1st((BYTE)wc) && si < 11) wc = wc << 8 | dj.dir[si++]; /* Is it a DBC? */\r | |
5176 | wc = ff_oem2uni(wc, CODEPAGE); /* Convert it into Unicode */\r | |
5177 | if (wc != 0) wc = put_utf(wc, &label[di], 4); /* Put it in Unicode */\r | |
5178 | if (wc == 0) { di = 0; break; }\r | |
5179 | di += wc;\r | |
5180 | #else /* ANSI/OEM output */\r | |
5181 | label[di++] = (TCHAR)wc;\r | |
5182 | #endif\r | |
5183 | }\r | |
5184 | do { /* Truncate trailing spaces */\r | |
5185 | label[di] = 0;\r | |
5186 | if (di == 0) break;\r | |
5187 | } while (label[--di] == ' ');\r | |
5188 | }\r | |
5189 | }\r | |
5190 | }\r | |
5191 | if (res == FR_NO_FILE) { /* No label entry and return nul string */\r | |
5192 | label[0] = 0;\r | |
5193 | res = FR_OK;\r | |
5194 | }\r | |
5195 | }\r | |
5196 | \r | |
5197 | /* Get volume serial number */\r | |
5198 | if (res == FR_OK && vsn) {\r | |
5199 | res = move_window(fs, fs->volbase);\r | |
5200 | if (res == FR_OK) {\r | |
5201 | switch (fs->fs_type) {\r | |
5202 | case FS_EXFAT:\r | |
5203 | di = BPB_VolIDEx; break;\r | |
5204 | \r | |
5205 | case FS_FAT32:\r | |
5206 | di = BS_VolID32; break;\r | |
5207 | \r | |
5208 | default:\r | |
5209 | di = BS_VolID;\r | |
5210 | }\r | |
5211 | *vsn = ld_dword(fs->win + di);\r | |
5212 | }\r | |
5213 | }\r | |
5214 | \r | |
5215 | LEAVE_FF(fs, res);\r | |
5216 | }\r | |
5217 | \r | |
5218 | \r | |
5219 | \r | |
5220 | #if !FF_FS_READONLY\r | |
5221 | /*-----------------------------------------------------------------------*/\r | |
5222 | /* Set Volume Label */\r | |
5223 | /*-----------------------------------------------------------------------*/\r | |
5224 | \r | |
5225 | FRESULT f_setlabel (\r | |
5226 | const TCHAR* label /* Volume label to set with heading logical drive number */\r | |
5227 | )\r | |
5228 | {\r | |
5229 | FRESULT res;\r | |
5230 | DIR dj;\r | |
5231 | FATFS *fs;\r | |
5232 | BYTE dirvn[22];\r | |
5233 | UINT di;\r | |
5234 | WCHAR wc;\r | |
5235 | static const char badchr[] = "+.,;=[]/\\\"*:<>\?|\x7F"; /* [0..] for FAT, [7..] for exFAT */\r | |
5236 | #if FF_USE_LFN\r | |
5237 | DWORD dc;\r | |
5238 | #endif\r | |
5239 | \r | |
5240 | /* Get logical drive */\r | |
5241 | res = find_volume(&label, &fs, FA_WRITE);\r | |
5242 | if (res != FR_OK) LEAVE_FF(fs, res);\r | |
5243 | \r | |
5244 | #if FF_FS_EXFAT\r | |
5245 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r | |
5246 | mem_set(dirvn, 0, 22);\r | |
5247 | di = 0;\r | |
5248 | while ((UINT)*label >= ' ') { /* Create volume label */\r | |
5249 | dc = tchar2uni(&label); /* Get a Unicode character */\r | |
5250 | if (dc >= 0x10000) {\r | |
5251 | if (dc == 0xFFFFFFFF || di >= 10) { /* Wrong surrogate or buffer overflow */\r | |
5252 | dc = 0;\r | |
5253 | } else {\r | |
5254 | st_word(dirvn + di * 2, (WCHAR)(dc >> 16)); di++;\r | |
5255 | }\r | |
5256 | }\r | |
5257 | if (dc == 0 || chk_chr(badchr + 7, (int)dc) || di >= 11) { /* Check validity of the volume label */\r | |
5258 | LEAVE_FF(fs, FR_INVALID_NAME);\r | |
5259 | }\r | |
5260 | st_word(dirvn + di * 2, (WCHAR)dc); di++;\r | |
5261 | }\r | |
5262 | } else\r | |
5263 | #endif\r | |
5264 | { /* On the FAT/FAT32 volume */\r | |
5265 | mem_set(dirvn, ' ', 11);\r | |
5266 | di = 0;\r | |
5267 | while ((UINT)*label >= ' ') { /* Create volume label */\r | |
5268 | #if FF_USE_LFN\r | |
5269 | dc = tchar2uni(&label);\r | |
5270 | wc = (dc < 0x10000) ? ff_uni2oem(ff_wtoupper(dc), CODEPAGE) : 0;\r | |
5271 | #else /* ANSI/OEM input */\r | |
5272 | wc = (BYTE)*label++;\r | |
5273 | if (dbc_1st((BYTE)wc)) wc = dbc_2nd((BYTE)*label) ? wc << 8 | (BYTE)*label++ : 0;\r | |
5274 | if (IsLower(wc)) wc -= 0x20; /* To upper ASCII characters */\r | |
5275 | #if FF_CODE_PAGE == 0\r | |
5276 | if (ExCvt && wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */\r | |
5277 | #elif FF_CODE_PAGE < 900\r | |
5278 | if (wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */\r | |
5279 | #endif\r | |
5280 | #endif\r | |
5281 | if (wc == 0 || chk_chr(badchr + 0, (int)wc) || di >= (UINT)((wc >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */\r | |
5282 | LEAVE_FF(fs, FR_INVALID_NAME);\r | |
5283 | }\r | |
5284 | if (wc >= 0x100) dirvn[di++] = (BYTE)(wc >> 8);\r | |
5285 | dirvn[di++] = (BYTE)wc;\r | |
5286 | }\r | |
5287 | if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */\r | |
5288 | while (di && dirvn[di - 1] == ' ') di--; /* Snip trailing spaces */\r | |
5289 | }\r | |
5290 | \r | |
5291 | /* Set volume label */\r | |
5292 | dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */\r | |
5293 | res = dir_sdi(&dj, 0);\r | |
5294 | if (res == FR_OK) {\r | |
5295 | res = dir_read_label(&dj); /* Get volume label entry */\r | |
5296 | if (res == FR_OK) {\r | |
5297 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {\r | |
5298 | dj.dir[XDIR_NumLabel] = (BYTE)di; /* Change the volume label */\r | |
5299 | mem_cpy(dj.dir + XDIR_Label, dirvn, 22);\r | |
5300 | } else {\r | |
5301 | if (di != 0) {\r | |
5302 | mem_cpy(dj.dir, dirvn, 11); /* Change the volume label */\r | |
5303 | } else {\r | |
5304 | dj.dir[DIR_Name] = DDEM; /* Remove the volume label */\r | |
5305 | }\r | |
5306 | }\r | |
5307 | fs->wflag = 1;\r | |
5308 | res = sync_fs(fs);\r | |
5309 | } else { /* No volume label entry or an error */\r | |
5310 | if (res == FR_NO_FILE) {\r | |
5311 | res = FR_OK;\r | |
5312 | if (di != 0) { /* Create a volume label entry */\r | |
5313 | res = dir_alloc(&dj, 1); /* Allocate an entry */\r | |
5314 | if (res == FR_OK) {\r | |
5315 | mem_set(dj.dir, 0, SZDIRE); /* Clean the entry */\r | |
5316 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {\r | |
5317 | dj.dir[XDIR_Type] = 0x83; /* Create 83 entry */\r | |
5318 | dj.dir[XDIR_NumLabel] = (BYTE)di;\r | |
5319 | mem_cpy(dj.dir + XDIR_Label, dirvn, 22);\r | |
5320 | } else {\r | |
5321 | dj.dir[DIR_Attr] = AM_VOL; /* Create volume label entry */\r | |
5322 | mem_cpy(dj.dir, dirvn, 11);\r | |
5323 | }\r | |
5324 | fs->wflag = 1;\r | |
5325 | res = sync_fs(fs);\r | |
5326 | }\r | |
5327 | }\r | |
5328 | }\r | |
5329 | }\r | |
5330 | }\r | |
5331 | \r | |
5332 | LEAVE_FF(fs, res);\r | |
5333 | }\r | |
5334 | \r | |
5335 | #endif /* !FF_FS_READONLY */\r | |
5336 | #endif /* FF_USE_LABEL */\r | |
5337 | \r | |
5338 | \r | |
5339 | \r | |
5340 | #if FF_USE_EXPAND && !FF_FS_READONLY\r | |
5341 | /*-----------------------------------------------------------------------*/\r | |
5342 | /* Allocate a Contiguous Blocks to the File */\r | |
5343 | /*-----------------------------------------------------------------------*/\r | |
5344 | \r | |
5345 | FRESULT f_expand (\r | |
5346 | FIL* fp, /* Pointer to the file object */\r | |
5347 | FSIZE_t fsz, /* File size to be expanded to */\r | |
5348 | BYTE opt /* Operation mode 0:Find and prepare or 1:Find and allocate */\r | |
5349 | )\r | |
5350 | {\r | |
5351 | FRESULT res;\r | |
5352 | FATFS *fs;\r | |
5353 | DWORD n, clst, stcl, scl, ncl, tcl, lclst;\r | |
5354 | \r | |
5355 | \r | |
5356 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
5357 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
5358 | if (fsz == 0 || fp->obj.objsize != 0 || !(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED);\r | |
5359 | #if FF_FS_EXFAT\r | |
5360 | if (fs->fs_type != FS_EXFAT && fsz >= 0x100000000) LEAVE_FF(fs, FR_DENIED); /* Check if in size limit */\r | |
5361 | #endif\r | |
5362 | n = (DWORD)fs->csize * SS(fs); /* Cluster size */\r | |
5363 | tcl = (DWORD)(fsz / n) + ((fsz & (n - 1)) ? 1 : 0); /* Number of clusters required */\r | |
5364 | stcl = fs->last_clst; lclst = 0;\r | |
5365 | if (stcl < 2 || stcl >= fs->n_fatent) stcl = 2;\r | |
5366 | \r | |
5367 | #if FF_FS_EXFAT\r | |
5368 | if (fs->fs_type == FS_EXFAT) {\r | |
5369 | scl = find_bitmap(fs, stcl, tcl); /* Find a contiguous cluster block */\r | |
5370 | if (scl == 0) res = FR_DENIED; /* No contiguous cluster block was found */\r | |
5371 | if (scl == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
5372 | if (res == FR_OK) { /* A contiguous free area is found */\r | |
5373 | if (opt) { /* Allocate it now */\r | |
5374 | res = change_bitmap(fs, scl, tcl, 1); /* Mark the cluster block 'in use' */\r | |
5375 | lclst = scl + tcl - 1;\r | |
5376 | } else { /* Set it as suggested point for next allocation */\r | |
5377 | lclst = scl - 1;\r | |
5378 | }\r | |
5379 | }\r | |
5380 | } else\r | |
5381 | #endif\r | |
5382 | {\r | |
5383 | scl = clst = stcl; ncl = 0;\r | |
5384 | for (;;) { /* Find a contiguous cluster block */\r | |
5385 | n = get_fat(&fp->obj, clst);\r | |
5386 | if (++clst >= fs->n_fatent) clst = 2;\r | |
5387 | if (n == 1) { res = FR_INT_ERR; break; }\r | |
5388 | if (n == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }\r | |
5389 | if (n == 0) { /* Is it a free cluster? */\r | |
5390 | if (++ncl == tcl) break; /* Break if a contiguous cluster block is found */\r | |
5391 | } else {\r | |
5392 | scl = clst; ncl = 0; /* Not a free cluster */\r | |
5393 | }\r | |
5394 | if (clst == stcl) { res = FR_DENIED; break; } /* No contiguous cluster? */\r | |
5395 | }\r | |
5396 | if (res == FR_OK) { /* A contiguous free area is found */\r | |
5397 | if (opt) { /* Allocate it now */\r | |
5398 | for (clst = scl, n = tcl; n; clst++, n--) { /* Create a cluster chain on the FAT */\r | |
5399 | res = put_fat(fs, clst, (n == 1) ? 0xFFFFFFFF : clst + 1);\r | |
5400 | if (res != FR_OK) break;\r | |
5401 | lclst = clst;\r | |
5402 | }\r | |
5403 | } else { /* Set it as suggested point for next allocation */\r | |
5404 | lclst = scl - 1;\r | |
5405 | }\r | |
5406 | }\r | |
5407 | }\r | |
5408 | \r | |
5409 | if (res == FR_OK) {\r | |
5410 | fs->last_clst = lclst; /* Set suggested start cluster to start next */\r | |
5411 | if (opt) { /* Is it allocated now? */\r | |
5412 | fp->obj.sclust = scl; /* Update object allocation information */\r | |
5413 | fp->obj.objsize = fsz;\r | |
5414 | if (FF_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */\r | |
5415 | fp->flag |= FA_MODIFIED;\r | |
5416 | if (fs->free_clst <= fs->n_fatent - 2) { /* Update FSINFO */\r | |
5417 | fs->free_clst -= tcl;\r | |
5418 | fs->fsi_flag |= 1;\r | |
5419 | }\r | |
5420 | }\r | |
5421 | }\r | |
5422 | \r | |
5423 | LEAVE_FF(fs, res);\r | |
5424 | }\r | |
5425 | \r | |
5426 | #endif /* FF_USE_EXPAND && !FF_FS_READONLY */\r | |
5427 | \r | |
5428 | \r | |
5429 | \r | |
5430 | #if FF_USE_FORWARD\r | |
5431 | /*-----------------------------------------------------------------------*/\r | |
5432 | /* Forward Data to the Stream Directly */\r | |
5433 | /*-----------------------------------------------------------------------*/\r | |
5434 | \r | |
5435 | FRESULT f_forward (\r | |
5436 | FIL* fp, /* Pointer to the file object */\r | |
5437 | UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */\r | |
5438 | UINT btf, /* Number of bytes to forward */\r | |
5439 | UINT* bf /* Pointer to number of bytes forwarded */\r | |
5440 | )\r | |
5441 | {\r | |
5442 | FRESULT res;\r | |
5443 | FATFS *fs;\r | |
5444 | DWORD clst, sect;\r | |
5445 | FSIZE_t remain;\r | |
5446 | UINT rcnt, csect;\r | |
5447 | BYTE *dbuf;\r | |
5448 | \r | |
5449 | \r | |
5450 | *bf = 0; /* Clear transfer byte counter */\r | |
5451 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
5452 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
5453 | if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
5454 | \r | |
5455 | remain = fp->obj.objsize - fp->fptr;\r | |
5456 | if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */\r | |
5457 | \r | |
5458 | for ( ; btf && (*func)(0, 0); /* Repeat until all data transferred or stream goes busy */\r | |
5459 | fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {\r | |
5460 | csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */\r | |
5461 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r | |
5462 | if (csect == 0) { /* On the cluster boundary? */\r | |
5463 | clst = (fp->fptr == 0) ? /* On the top of the file? */\r | |
5464 | fp->obj.sclust : get_fat(&fp->obj, fp->clust);\r | |
5465 | if (clst <= 1) ABORT(fs, FR_INT_ERR);\r | |
5466 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
5467 | fp->clust = clst; /* Update current cluster */\r | |
5468 | }\r | |
5469 | }\r | |
5470 | sect = clst2sect(fs, fp->clust); /* Get current data sector */\r | |
5471 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
5472 | sect += csect;\r | |
5473 | #if FF_FS_TINY\r | |
5474 | if (move_window(fs, sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window to the file data */\r | |
5475 | dbuf = fs->win;\r | |
5476 | #else\r | |
5477 | if (fp->sect != sect) { /* Fill sector cache with file data */\r | |
5478 | #if !FF_FS_READONLY\r | |
5479 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r | |
5480 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
5481 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
5482 | }\r | |
5483 | #endif\r | |
5484 | if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r | |
5485 | }\r | |
5486 | dbuf = fp->buf;\r | |
5487 | #endif\r | |
5488 | fp->sect = sect;\r | |
5489 | rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */\r | |
5490 | if (rcnt > btf) rcnt = btf; /* Clip it by btr if needed */\r | |
5491 | rcnt = (*func)(dbuf + ((UINT)fp->fptr % SS(fs)), rcnt); /* Forward the file data */\r | |
5492 | if (rcnt == 0) ABORT(fs, FR_INT_ERR);\r | |
5493 | }\r | |
5494 | \r | |
5495 | LEAVE_FF(fs, FR_OK);\r | |
5496 | }\r | |
5497 | #endif /* FF_USE_FORWARD */\r | |
5498 | \r | |
5499 | \r | |
5500 | \r | |
5501 | #if FF_USE_MKFS && !FF_FS_READONLY\r | |
5502 | /*-----------------------------------------------------------------------*/\r | |
5503 | /* Create an FAT/exFAT volume */\r | |
5504 | /*-----------------------------------------------------------------------*/\r | |
5505 | \r | |
5506 | FRESULT f_mkfs (\r | |
5507 | const TCHAR* path, /* Logical drive number */\r | |
5508 | BYTE opt, /* Format option */\r | |
5509 | DWORD au, /* Size of allocation unit (cluster) [byte] */\r | |
5510 | void* work, /* Pointer to working buffer (null: use heap memory) */\r | |
5511 | UINT len /* Size of working buffer [byte] */\r | |
5512 | )\r | |
5513 | {\r | |
5514 | const UINT n_fats = 1; /* Number of FATs for FAT/FAT32 volume (1 or 2) */\r | |
5515 | const UINT n_rootdir = 512; /* Number of root directory entries for FAT volume */\r | |
5516 | static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */\r | |
5517 | static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */\r | |
5518 | BYTE fmt, sys, *buf, *pte, pdrv, part;\r | |
5519 | WORD ss; /* Sector size */\r | |
5520 | DWORD szb_buf, sz_buf, sz_blk, n_clst, pau, sect, nsect, n;\r | |
5521 | DWORD b_vol, b_fat, b_data; /* Base LBA for volume, fat, data */\r | |
5522 | DWORD sz_vol, sz_rsv, sz_fat, sz_dir; /* Size for volume, fat, dir, data */\r | |
5523 | UINT i;\r | |
5524 | int vol;\r | |
5525 | DSTATUS stat;\r | |
5526 | #if FF_USE_TRIM || FF_FS_EXFAT\r | |
5527 | DWORD tbl[3];\r | |
5528 | #endif\r | |
5529 | \r | |
5530 | \r | |
5531 | /* Check mounted drive and clear work area */\r | |
5532 | vol = get_ldnumber(&path); /* Get target logical drive */\r | |
5533 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
5534 | if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear the volume if mounted */\r | |
5535 | pdrv = LD2PD(vol); /* Physical drive */\r | |
5536 | part = LD2PT(vol); /* Partition (0:create as new, 1-4:get from partition table) */\r | |
5537 | \r | |
5538 | /* Check physical drive status */\r | |
5539 | stat = disk_initialize(pdrv);\r | |
5540 | if (stat & STA_NOINIT) return FR_NOT_READY;\r | |
5541 | if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;\r | |
5542 | if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK || !sz_blk || sz_blk > 32768 || (sz_blk & (sz_blk - 1))) sz_blk = 1; /* Erase block to align data area */\r | |
5543 | #if FF_MAX_SS != FF_MIN_SS /* Get sector size of the medium if variable sector size cfg. */\r | |
5544 | if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR;\r | |
5545 | if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR;\r | |
5546 | #else\r | |
5547 | ss = FF_MAX_SS;\r | |
5548 | #endif\r | |
5549 | if ((au != 0 && au < ss) || au > 0x1000000 || (au & (au - 1))) return FR_INVALID_PARAMETER; /* Check if au is valid */\r | |
5550 | au /= ss; /* Cluster size in unit of sector */\r | |
5551 | \r | |
5552 | /* Get working buffer */\r | |
5553 | #if FF_USE_LFN == 3\r | |
5554 | if (!work) { /* Use heap memory for working buffer */\r | |
5555 | for (szb_buf = MAX_MALLOC, buf = 0; szb_buf >= ss && (buf = ff_memalloc(szb_buf)) == 0; szb_buf /= 2) ;\r | |
5556 | sz_buf = szb_buf / ss; /* Size of working buffer (sector) */\r | |
5557 | } else\r | |
5558 | #endif\r | |
5559 | {\r | |
5560 | buf = (BYTE*)work; /* Working buffer */\r | |
5561 | sz_buf = len / ss; /* Size of working buffer (sector) */\r | |
5562 | szb_buf = sz_buf * ss; /* Size of working buffer (byte) */\r | |
5563 | }\r | |
5564 | if (!buf || sz_buf == 0) return FR_NOT_ENOUGH_CORE;\r | |
5565 | \r | |
5566 | /* Determine where the volume to be located (b_vol, sz_vol) */\r | |
5567 | if (FF_MULTI_PARTITION && part != 0) {\r | |
5568 | /* Get partition information from partition table in the MBR */\r | |
5569 | if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load MBR */\r | |
5570 | if (ld_word(buf + BS_55AA) != 0xAA55) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if MBR is valid */\r | |
5571 | pte = buf + (MBR_Table + (part - 1) * SZ_PTE);\r | |
5572 | if (pte[PTE_System] == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* No partition? */\r | |
5573 | b_vol = ld_dword(pte + PTE_StLba); /* Get volume start sector */\r | |
5574 | sz_vol = ld_dword(pte + PTE_SizLba); /* Get volume size */\r | |
5575 | } else {\r | |
5576 | /* Create a single-partition in this function */\r | |
5577 | if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5578 | b_vol = (opt & FM_SFD) ? 0 : 63; /* Volume start sector */\r | |
5579 | if (sz_vol < b_vol) LEAVE_MKFS(FR_MKFS_ABORTED);\r | |
5580 | sz_vol -= b_vol; /* Volume size */\r | |
5581 | }\r | |
5582 | if (sz_vol < 128) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if volume size is >=128s */\r | |
5583 | \r | |
5584 | /* Pre-determine the FAT type */\r | |
5585 | do {\r | |
5586 | if (FF_FS_EXFAT && (opt & FM_EXFAT)) { /* exFAT possible? */\r | |
5587 | if ((opt & FM_ANY) == FM_EXFAT || sz_vol >= 0x4000000 || au > 128) { /* exFAT only, vol >= 64Ms or au > 128s ? */\r | |
5588 | fmt = FS_EXFAT; break;\r | |
5589 | }\r | |
5590 | }\r | |
5591 | if (au > 128) LEAVE_MKFS(FR_INVALID_PARAMETER); /* Too large au for FAT/FAT32 */\r | |
5592 | if (opt & FM_FAT32) { /* FAT32 possible? */\r | |
5593 | if ((opt & FM_ANY) == FM_FAT32 || !(opt & FM_FAT)) { /* FAT32 only or no-FAT? */\r | |
5594 | fmt = FS_FAT32; break;\r | |
5595 | }\r | |
5596 | }\r | |
5597 | if (!(opt & FM_FAT)) LEAVE_MKFS(FR_INVALID_PARAMETER); /* no-FAT? */\r | |
5598 | fmt = FS_FAT16;\r | |
5599 | } while (0);\r | |
5600 | \r | |
5601 | #if FF_FS_EXFAT\r | |
5602 | if (fmt == FS_EXFAT) { /* Create an exFAT volume */\r | |
5603 | DWORD szb_bit, szb_case, sum, nb, cl;\r | |
5604 | WCHAR ch, si;\r | |
5605 | UINT j, st;\r | |
5606 | BYTE b;\r | |
5607 | \r | |
5608 | if (sz_vol < 0x1000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */\r | |
5609 | #if FF_USE_TRIM\r | |
5610 | tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area may be erased */\r | |
5611 | disk_ioctl(pdrv, CTRL_TRIM, tbl);\r | |
5612 | #endif\r | |
5613 | /* Determine FAT location, data location and number of clusters */\r | |
5614 | if (au == 0) { /* au auto-selection */\r | |
5615 | au = 8;\r | |
5616 | if (sz_vol >= 0x80000) au = 64; /* >= 512Ks */\r | |
5617 | if (sz_vol >= 0x4000000) au = 256; /* >= 64Ms */\r | |
5618 | }\r | |
5619 | b_fat = b_vol + 32; /* FAT start at offset 32 */\r | |
5620 | sz_fat = ((sz_vol / au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */\r | |
5621 | b_data = (b_fat + sz_fat + sz_blk - 1) & ~(sz_blk - 1); /* Align data area to the erase block boundary */\r | |
5622 | if (b_data >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */\r | |
5623 | n_clst = (sz_vol - (b_data - b_vol)) / au; /* Number of clusters */\r | |
5624 | if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */\r | |
5625 | if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */\r | |
5626 | \r | |
5627 | szb_bit = (n_clst + 7) / 8; /* Size of allocation bitmap */\r | |
5628 | tbl[0] = (szb_bit + au * ss - 1) / (au * ss); /* Number of allocation bitmap clusters */\r | |
5629 | \r | |
5630 | /* Create a compressed up-case table */\r | |
5631 | sect = b_data + au * tbl[0]; /* Table start sector */\r | |
5632 | sum = 0; /* Table checksum to be stored in the 82 entry */\r | |
5633 | st = 0; si = 0; i = 0; j = 0; szb_case = 0;\r | |
5634 | do {\r | |
5635 | switch (st) {\r | |
5636 | case 0:\r | |
5637 | ch = (WCHAR)ff_wtoupper(si); /* Get an up-case char */\r | |
5638 | if (ch != si) {\r | |
5639 | si++; break; /* Store the up-case char if exist */\r | |
5640 | }\r | |
5641 | for (j = 1; (WCHAR)(si + j) && (WCHAR)(si + j) == ff_wtoupper((WCHAR)(si + j)); j++) ; /* Get run length of no-case block */\r | |
5642 | if (j >= 128) {\r | |
5643 | ch = 0xFFFF; st = 2; break; /* Compress the no-case block if run is >= 128 */\r | |
5644 | }\r | |
5645 | st = 1; /* Do not compress short run */\r | |
5646 | /* go to next case */\r | |
5647 | case 1:\r | |
5648 | ch = si++; /* Fill the short run */\r | |
5649 | if (--j == 0) st = 0;\r | |
5650 | break;\r | |
5651 | \r | |
5652 | default:\r | |
5653 | ch = (WCHAR)j; si += (WCHAR)j; /* Number of chars to skip */\r | |
5654 | st = 0;\r | |
5655 | }\r | |
5656 | sum = xsum32(buf[i + 0] = (BYTE)ch, sum); /* Put it into the write buffer */\r | |
5657 | sum = xsum32(buf[i + 1] = (BYTE)(ch >> 8), sum);\r | |
5658 | i += 2; szb_case += 2;\r | |
5659 | if (si == 0 || i == szb_buf) { /* Write buffered data when buffer full or end of process */\r | |
5660 | n = (i + ss - 1) / ss;\r | |
5661 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5662 | sect += n; i = 0;\r | |
5663 | }\r | |
5664 | } while (si);\r | |
5665 | tbl[1] = (szb_case + au * ss - 1) / (au * ss); /* Number of up-case table clusters */\r | |
5666 | tbl[2] = 1; /* Number of root dir clusters */\r | |
5667 | \r | |
5668 | /* Initialize the allocation bitmap */\r | |
5669 | sect = b_data; nsect = (szb_bit + ss - 1) / ss; /* Start of bitmap and number of sectors */\r | |
5670 | nb = tbl[0] + tbl[1] + tbl[2]; /* Number of clusters in-use by system */\r | |
5671 | do {\r | |
5672 | mem_set(buf, 0, szb_buf);\r | |
5673 | for (i = 0; nb >= 8 && i < szb_buf; buf[i++] = 0xFF, nb -= 8) ;\r | |
5674 | for (b = 1; nb != 0 && i < szb_buf; buf[i] |= b, b <<= 1, nb--) ;\r | |
5675 | n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */\r | |
5676 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5677 | sect += n; nsect -= n;\r | |
5678 | } while (nsect);\r | |
5679 | \r | |
5680 | /* Initialize the FAT */\r | |
5681 | sect = b_fat; nsect = sz_fat; /* Start of FAT and number of FAT sectors */\r | |
5682 | j = nb = cl = 0;\r | |
5683 | do {\r | |
5684 | mem_set(buf, 0, szb_buf); i = 0; /* Clear work area and reset write index */\r | |
5685 | if (cl == 0) { /* Set entry 0 and 1 */\r | |
5686 | st_dword(buf + i, 0xFFFFFFF8); i += 4; cl++;\r | |
5687 | st_dword(buf + i, 0xFFFFFFFF); i += 4; cl++;\r | |
5688 | }\r | |
5689 | do { /* Create chains of bitmap, up-case and root dir */\r | |
5690 | while (nb != 0 && i < szb_buf) { /* Create a chain */\r | |
5691 | st_dword(buf + i, (nb > 1) ? cl + 1 : 0xFFFFFFFF);\r | |
5692 | i += 4; cl++; nb--;\r | |
5693 | }\r | |
5694 | if (nb == 0 && j < 3) nb = tbl[j++]; /* Next chain */\r | |
5695 | } while (nb != 0 && i < szb_buf);\r | |
5696 | n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */\r | |
5697 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5698 | sect += n; nsect -= n;\r | |
5699 | } while (nsect);\r | |
5700 | \r | |
5701 | /* Initialize the root directory */\r | |
5702 | mem_set(buf, 0, szb_buf);\r | |
5703 | buf[SZDIRE * 0 + 0] = 0x83; /* 83 entry (volume label) */\r | |
5704 | buf[SZDIRE * 1 + 0] = 0x81; /* 81 entry (allocation bitmap) */\r | |
5705 | st_dword(buf + SZDIRE * 1 + 20, 2); /* cluster */\r | |
5706 | st_dword(buf + SZDIRE * 1 + 24, szb_bit); /* size */\r | |
5707 | buf[SZDIRE * 2 + 0] = 0x82; /* 82 entry (up-case table) */\r | |
5708 | st_dword(buf + SZDIRE * 2 + 4, sum); /* sum */\r | |
5709 | st_dword(buf + SZDIRE * 2 + 20, 2 + tbl[0]); /* cluster */\r | |
5710 | st_dword(buf + SZDIRE * 2 + 24, szb_case); /* size */\r | |
5711 | sect = b_data + au * (tbl[0] + tbl[1]); nsect = au; /* Start of the root directory and number of sectors */\r | |
5712 | do { /* Fill root directory sectors */\r | |
5713 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
5714 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5715 | mem_set(buf, 0, ss);\r | |
5716 | sect += n; nsect -= n;\r | |
5717 | } while (nsect);\r | |
5718 | \r | |
5719 | /* Create two set of the exFAT VBR blocks */\r | |
5720 | sect = b_vol;\r | |
5721 | for (n = 0; n < 2; n++) {\r | |
5722 | /* Main record (+0) */\r | |
5723 | mem_set(buf, 0, ss);\r | |
5724 | mem_cpy(buf + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11); /* Boot jump code (x86), OEM name */\r | |
5725 | st_dword(buf + BPB_VolOfsEx, b_vol); /* Volume offset in the physical drive [sector] */\r | |
5726 | st_dword(buf + BPB_TotSecEx, sz_vol); /* Volume size [sector] */\r | |
5727 | st_dword(buf + BPB_FatOfsEx, b_fat - b_vol); /* FAT offset [sector] */\r | |
5728 | st_dword(buf + BPB_FatSzEx, sz_fat); /* FAT size [sector] */\r | |
5729 | st_dword(buf + BPB_DataOfsEx, b_data - b_vol); /* Data offset [sector] */\r | |
5730 | st_dword(buf + BPB_NumClusEx, n_clst); /* Number of clusters */\r | |
5731 | st_dword(buf + BPB_RootClusEx, 2 + tbl[0] + tbl[1]); /* Root dir cluster # */\r | |
5732 | st_dword(buf + BPB_VolIDEx, GET_FATTIME()); /* VSN */\r | |
5733 | st_word(buf + BPB_FSVerEx, 0x100); /* Filesystem version (1.00) */\r | |
5734 | for (buf[BPB_BytsPerSecEx] = 0, i = ss; i >>= 1; buf[BPB_BytsPerSecEx]++) ; /* Log2 of sector size [byte] */\r | |
5735 | for (buf[BPB_SecPerClusEx] = 0, i = au; i >>= 1; buf[BPB_SecPerClusEx]++) ; /* Log2 of cluster size [sector] */\r | |
5736 | buf[BPB_NumFATsEx] = 1; /* Number of FATs */\r | |
5737 | buf[BPB_DrvNumEx] = 0x80; /* Drive number (for int13) */\r | |
5738 | st_word(buf + BS_BootCodeEx, 0xFEEB); /* Boot code (x86) */\r | |
5739 | st_word(buf + BS_55AA, 0xAA55); /* Signature (placed here regardless of sector size) */\r | |
5740 | for (i = sum = 0; i < ss; i++) { /* VBR checksum */\r | |
5741 | if (i != BPB_VolFlagEx && i != BPB_VolFlagEx + 1 && i != BPB_PercInUseEx) sum = xsum32(buf[i], sum);\r | |
5742 | }\r | |
5743 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5744 | /* Extended bootstrap record (+1..+8) */\r | |
5745 | mem_set(buf, 0, ss);\r | |
5746 | st_word(buf + ss - 2, 0xAA55); /* Signature (placed at end of sector) */\r | |
5747 | for (j = 1; j < 9; j++) {\r | |
5748 | for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */\r | |
5749 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5750 | }\r | |
5751 | /* OEM/Reserved record (+9..+10) */\r | |
5752 | mem_set(buf, 0, ss);\r | |
5753 | for ( ; j < 11; j++) {\r | |
5754 | for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */\r | |
5755 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5756 | }\r | |
5757 | /* Sum record (+11) */\r | |
5758 | for (i = 0; i < ss; i += 4) st_dword(buf + i, sum); /* Fill with checksum value */\r | |
5759 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5760 | }\r | |
5761 | \r | |
5762 | } else\r | |
5763 | #endif /* FF_FS_EXFAT */\r | |
5764 | { /* Create an FAT/FAT32 volume */\r | |
5765 | do {\r | |
5766 | pau = au;\r | |
5767 | /* Pre-determine number of clusters and FAT sub-type */\r | |
5768 | if (fmt == FS_FAT32) { /* FAT32 volume */\r | |
5769 | if (pau == 0) { /* au auto-selection */\r | |
5770 | n = sz_vol / 0x20000; /* Volume size in unit of 128KS */\r | |
5771 | for (i = 0, pau = 1; cst32[i] && cst32[i] <= n; i++, pau <<= 1) ; /* Get from table */\r | |
5772 | }\r | |
5773 | n_clst = sz_vol / pau; /* Number of clusters */\r | |
5774 | sz_fat = (n_clst * 4 + 8 + ss - 1) / ss; /* FAT size [sector] */\r | |
5775 | sz_rsv = 32; /* Number of reserved sectors */\r | |
5776 | sz_dir = 0; /* No static directory */\r | |
5777 | if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) LEAVE_MKFS(FR_MKFS_ABORTED);\r | |
5778 | } else { /* FAT volume */\r | |
5779 | if (pau == 0) { /* au auto-selection */\r | |
5780 | n = sz_vol / 0x1000; /* Volume size in unit of 4KS */\r | |
5781 | for (i = 0, pau = 1; cst[i] && cst[i] <= n; i++, pau <<= 1) ; /* Get from table */\r | |
5782 | }\r | |
5783 | n_clst = sz_vol / pau;\r | |
5784 | if (n_clst > MAX_FAT12) {\r | |
5785 | n = n_clst * 2 + 4; /* FAT size [byte] */\r | |
5786 | } else {\r | |
5787 | fmt = FS_FAT12;\r | |
5788 | n = (n_clst * 3 + 1) / 2 + 3; /* FAT size [byte] */\r | |
5789 | }\r | |
5790 | sz_fat = (n + ss - 1) / ss; /* FAT size [sector] */\r | |
5791 | sz_rsv = 1; /* Number of reserved sectors */\r | |
5792 | sz_dir = (DWORD)n_rootdir * SZDIRE / ss; /* Rootdir size [sector] */\r | |
5793 | }\r | |
5794 | b_fat = b_vol + sz_rsv; /* FAT base */\r | |
5795 | b_data = b_fat + sz_fat * n_fats + sz_dir; /* Data base */\r | |
5796 | \r | |
5797 | /* Align data base to erase block boundary (for flash memory media) */\r | |
5798 | n = ((b_data + sz_blk - 1) & ~(sz_blk - 1)) - b_data; /* Next nearest erase block from current data base */\r | |
5799 | if (fmt == FS_FAT32) { /* FAT32: Move FAT base */\r | |
5800 | sz_rsv += n; b_fat += n;\r | |
5801 | } else { /* FAT: Expand FAT size */\r | |
5802 | sz_fat += n / n_fats;\r | |
5803 | }\r | |
5804 | \r | |
5805 | /* Determine number of clusters and final check of validity of the FAT sub-type */\r | |
5806 | if (sz_vol < b_data + pau * 16 - b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume */\r | |
5807 | n_clst = (sz_vol - sz_rsv - sz_fat * n_fats - sz_dir) / pau;\r | |
5808 | if (fmt == FS_FAT32) {\r | |
5809 | if (n_clst <= MAX_FAT16) { /* Too few clusters for FAT32 */\r | |
5810 | if (au == 0 && (au = pau / 2) != 0) continue; /* Adjust cluster size and retry */\r | |
5811 | LEAVE_MKFS(FR_MKFS_ABORTED);\r | |
5812 | }\r | |
5813 | }\r | |
5814 | if (fmt == FS_FAT16) {\r | |
5815 | if (n_clst > MAX_FAT16) { /* Too many clusters for FAT16 */\r | |
5816 | if (au == 0 && (pau * 2) <= 64) {\r | |
5817 | au = pau * 2; continue; /* Adjust cluster size and retry */\r | |
5818 | }\r | |
5819 | if ((opt & FM_FAT32)) {\r | |
5820 | fmt = FS_FAT32; continue; /* Switch type to FAT32 and retry */\r | |
5821 | }\r | |
5822 | if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */\r | |
5823 | LEAVE_MKFS(FR_MKFS_ABORTED);\r | |
5824 | }\r | |
5825 | if (n_clst <= MAX_FAT12) { /* Too few clusters for FAT16 */\r | |
5826 | if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */\r | |
5827 | LEAVE_MKFS(FR_MKFS_ABORTED);\r | |
5828 | }\r | |
5829 | }\r | |
5830 | if (fmt == FS_FAT12 && n_clst > MAX_FAT12) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters for FAT12 */\r | |
5831 | \r | |
5832 | /* Ok, it is the valid cluster configuration */\r | |
5833 | break;\r | |
5834 | } while (1);\r | |
5835 | \r | |
5836 | #if FF_USE_TRIM\r | |
5837 | tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area can be erased */\r | |
5838 | disk_ioctl(pdrv, CTRL_TRIM, tbl);\r | |
5839 | #endif\r | |
5840 | /* Create FAT VBR */\r | |
5841 | mem_set(buf, 0, ss);\r | |
5842 | mem_cpy(buf + BS_JmpBoot, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code (x86), OEM name */\r | |
5843 | st_word(buf + BPB_BytsPerSec, ss); /* Sector size [byte] */\r | |
5844 | buf[BPB_SecPerClus] = (BYTE)pau; /* Cluster size [sector] */\r | |
5845 | st_word(buf + BPB_RsvdSecCnt, (WORD)sz_rsv); /* Size of reserved area */\r | |
5846 | buf[BPB_NumFATs] = (BYTE)n_fats; /* Number of FATs */\r | |
5847 | st_word(buf + BPB_RootEntCnt, (WORD)((fmt == FS_FAT32) ? 0 : n_rootdir)); /* Number of root directory entries */\r | |
5848 | if (sz_vol < 0x10000) {\r | |
5849 | st_word(buf + BPB_TotSec16, (WORD)sz_vol); /* Volume size in 16-bit LBA */\r | |
5850 | } else {\r | |
5851 | st_dword(buf + BPB_TotSec32, sz_vol); /* Volume size in 32-bit LBA */\r | |
5852 | }\r | |
5853 | buf[BPB_Media] = 0xF8; /* Media descriptor byte */\r | |
5854 | st_word(buf + BPB_SecPerTrk, 63); /* Number of sectors per track (for int13) */\r | |
5855 | st_word(buf + BPB_NumHeads, 255); /* Number of heads (for int13) */\r | |
5856 | st_dword(buf + BPB_HiddSec, b_vol); /* Volume offset in the physical drive [sector] */\r | |
5857 | if (fmt == FS_FAT32) {\r | |
5858 | st_dword(buf + BS_VolID32, GET_FATTIME()); /* VSN */\r | |
5859 | st_dword(buf + BPB_FATSz32, sz_fat); /* FAT size [sector] */\r | |
5860 | st_dword(buf + BPB_RootClus32, 2); /* Root directory cluster # (2) */\r | |
5861 | st_word(buf + BPB_FSInfo32, 1); /* Offset of FSINFO sector (VBR + 1) */\r | |
5862 | st_word(buf + BPB_BkBootSec32, 6); /* Offset of backup VBR (VBR + 6) */\r | |
5863 | buf[BS_DrvNum32] = 0x80; /* Drive number (for int13) */\r | |
5864 | buf[BS_BootSig32] = 0x29; /* Extended boot signature */\r | |
5865 | mem_cpy(buf + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */\r | |
5866 | } else {\r | |
5867 | st_dword(buf + BS_VolID, GET_FATTIME()); /* VSN */\r | |
5868 | st_word(buf + BPB_FATSz16, (WORD)sz_fat); /* FAT size [sector] */\r | |
5869 | buf[BS_DrvNum] = 0x80; /* Drive number (for int13) */\r | |
5870 | buf[BS_BootSig] = 0x29; /* Extended boot signature */\r | |
5871 | mem_cpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */\r | |
5872 | }\r | |
5873 | st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */\r | |
5874 | if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */\r | |
5875 | \r | |
5876 | /* Create FSINFO record if needed */\r | |
5877 | if (fmt == FS_FAT32) {\r | |
5878 | disk_write(pdrv, buf, b_vol + 6, 1); /* Write backup VBR (VBR + 6) */\r | |
5879 | mem_set(buf, 0, ss);\r | |
5880 | st_dword(buf + FSI_LeadSig, 0x41615252);\r | |
5881 | st_dword(buf + FSI_StrucSig, 0x61417272);\r | |
5882 | st_dword(buf + FSI_Free_Count, n_clst - 1); /* Number of free clusters */\r | |
5883 | st_dword(buf + FSI_Nxt_Free, 2); /* Last allocated cluster# */\r | |
5884 | st_word(buf + BS_55AA, 0xAA55);\r | |
5885 | disk_write(pdrv, buf, b_vol + 7, 1); /* Write backup FSINFO (VBR + 7) */\r | |
5886 | disk_write(pdrv, buf, b_vol + 1, 1); /* Write original FSINFO (VBR + 1) */\r | |
5887 | }\r | |
5888 | \r | |
5889 | /* Initialize FAT area */\r | |
5890 | mem_set(buf, 0, (UINT)szb_buf);\r | |
5891 | sect = b_fat; /* FAT start sector */\r | |
5892 | for (i = 0; i < n_fats; i++) { /* Initialize FATs each */\r | |
5893 | if (fmt == FS_FAT32) {\r | |
5894 | st_dword(buf + 0, 0xFFFFFFF8); /* Entry 0 */\r | |
5895 | st_dword(buf + 4, 0xFFFFFFFF); /* Entry 1 */\r | |
5896 | st_dword(buf + 8, 0x0FFFFFFF); /* Entry 2 (root directory) */\r | |
5897 | } else {\r | |
5898 | st_dword(buf + 0, (fmt == FS_FAT12) ? 0xFFFFF8 : 0xFFFFFFF8); /* Entry 0 and 1 */\r | |
5899 | }\r | |
5900 | nsect = sz_fat; /* Number of FAT sectors */\r | |
5901 | do { /* Fill FAT sectors */\r | |
5902 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
5903 | if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5904 | mem_set(buf, 0, ss);\r | |
5905 | sect += n; nsect -= n;\r | |
5906 | } while (nsect);\r | |
5907 | }\r | |
5908 | \r | |
5909 | /* Initialize root directory (fill with zero) */\r | |
5910 | nsect = (fmt == FS_FAT32) ? pau : sz_dir; /* Number of root directory sectors */\r | |
5911 | do {\r | |
5912 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
5913 | if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5914 | sect += n; nsect -= n;\r | |
5915 | } while (nsect);\r | |
5916 | }\r | |
5917 | \r | |
5918 | /* Determine system ID in the partition table */\r | |
5919 | if (FF_FS_EXFAT && fmt == FS_EXFAT) {\r | |
5920 | sys = 0x07; /* HPFS/NTFS/exFAT */\r | |
5921 | } else {\r | |
5922 | if (fmt == FS_FAT32) {\r | |
5923 | sys = 0x0C; /* FAT32X */\r | |
5924 | } else {\r | |
5925 | if (sz_vol >= 0x10000) {\r | |
5926 | sys = 0x06; /* FAT12/16 (large) */\r | |
5927 | } else {\r | |
5928 | sys = (fmt == FS_FAT16) ? 0x04 : 0x01; /* FAT16 : FAT12 */\r | |
5929 | }\r | |
5930 | }\r | |
5931 | }\r | |
5932 | \r | |
5933 | /* Update partition information */\r | |
5934 | if (FF_MULTI_PARTITION && part != 0) { /* Created in the existing partition */\r | |
5935 | /* Update system ID in the partition table */\r | |
5936 | if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Read the MBR */\r | |
5937 | buf[MBR_Table + (part - 1) * SZ_PTE + PTE_System] = sys; /* Set system ID */\r | |
5938 | if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it back to the MBR */\r | |
5939 | } else { /* Created as a new single partition */\r | |
5940 | if (!(opt & FM_SFD)) { /* Create partition table if in FDISK format */\r | |
5941 | mem_set(buf, 0, ss);\r | |
5942 | st_word(buf + BS_55AA, 0xAA55); /* MBR signature */\r | |
5943 | pte = buf + MBR_Table; /* Create partition table for single partition in the drive */\r | |
5944 | pte[PTE_Boot] = 0; /* Boot indicator */\r | |
5945 | pte[PTE_StHead] = 1; /* Start head */\r | |
5946 | pte[PTE_StSec] = 1; /* Start sector */\r | |
5947 | pte[PTE_StCyl] = 0; /* Start cylinder */\r | |
5948 | pte[PTE_System] = sys; /* System type */\r | |
5949 | n = (b_vol + sz_vol) / (63 * 255); /* (End CHS may be invalid) */\r | |
5950 | pte[PTE_EdHead] = 254; /* End head */\r | |
5951 | pte[PTE_EdSec] = (BYTE)(((n >> 2) & 0xC0) | 63); /* End sector */\r | |
5952 | pte[PTE_EdCyl] = (BYTE)n; /* End cylinder */\r | |
5953 | st_dword(pte + PTE_StLba, b_vol); /* Start offset in LBA */\r | |
5954 | st_dword(pte + PTE_SizLba, sz_vol); /* Size in sectors */\r | |
5955 | if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the MBR */\r | |
5956 | }\r | |
5957 | }\r | |
5958 | \r | |
5959 | if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r | |
5960 | \r | |
5961 | LEAVE_MKFS(FR_OK);\r | |
5962 | }\r | |
5963 | \r | |
5964 | \r | |
5965 | \r | |
5966 | #if FF_MULTI_PARTITION\r | |
5967 | /*-----------------------------------------------------------------------*/\r | |
5968 | /* Create Partition Table on the Physical Drive */\r | |
5969 | /*-----------------------------------------------------------------------*/\r | |
5970 | \r | |
5971 | FRESULT f_fdisk (\r | |
5972 | BYTE pdrv, /* Physical drive number */\r | |
5973 | const DWORD* szt, /* Pointer to the size table for each partitions */\r | |
5974 | void* work /* Pointer to the working buffer (null: use heap memory) */\r | |
5975 | )\r | |
5976 | {\r | |
5977 | UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;\r | |
5978 | BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;\r | |
5979 | DSTATUS stat;\r | |
5980 | DWORD sz_disk, sz_part, s_part;\r | |
5981 | FRESULT res;\r | |
5982 | \r | |
5983 | \r | |
5984 | stat = disk_initialize(pdrv);\r | |
5985 | if (stat & STA_NOINIT) return FR_NOT_READY;\r | |
5986 | if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;\r | |
5987 | if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;\r | |
5988 | \r | |
5989 | buf = (BYTE*)work;\r | |
5990 | #if FF_USE_LFN == 3\r | |
5991 | if (!buf) buf = ff_memalloc(FF_MAX_SS); /* Use heap memory for working buffer */\r | |
5992 | #endif\r | |
5993 | if (!buf) return FR_NOT_ENOUGH_CORE;\r | |
5994 | \r | |
5995 | /* Determine the CHS without any consideration of the drive geometry */\r | |
5996 | for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;\r | |
5997 | if (n == 256) n--;\r | |
5998 | e_hd = (BYTE)(n - 1);\r | |
5999 | sz_cyl = 63 * n;\r | |
6000 | tot_cyl = sz_disk / sz_cyl;\r | |
6001 | \r | |
6002 | /* Create partition table */\r | |
6003 | mem_set(buf, 0, FF_MAX_SS);\r | |
6004 | p = buf + MBR_Table; b_cyl = 0;\r | |
6005 | for (i = 0; i < 4; i++, p += SZ_PTE) {\r | |
6006 | p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl; /* Number of cylinders */\r | |
6007 | if (p_cyl == 0) continue;\r | |
6008 | s_part = (DWORD)sz_cyl * b_cyl;\r | |
6009 | sz_part = (DWORD)sz_cyl * p_cyl;\r | |
6010 | if (i == 0) { /* Exclude first track of cylinder 0 */\r | |
6011 | s_hd = 1;\r | |
6012 | s_part += 63; sz_part -= 63;\r | |
6013 | } else {\r | |
6014 | s_hd = 0;\r | |
6015 | }\r | |
6016 | e_cyl = b_cyl + p_cyl - 1; /* End cylinder */\r | |
6017 | if (e_cyl >= tot_cyl) LEAVE_MKFS(FR_INVALID_PARAMETER);\r | |
6018 | \r | |
6019 | /* Set partition table */\r | |
6020 | p[1] = s_hd; /* Start head */\r | |
6021 | p[2] = (BYTE)(((b_cyl >> 2) & 0xC0) | 1); /* Start sector */\r | |
6022 | p[3] = (BYTE)b_cyl; /* Start cylinder */\r | |
6023 | p[4] = 0x07; /* System type (temporary setting) */\r | |
6024 | p[5] = e_hd; /* End head */\r | |
6025 | p[6] = (BYTE)(((e_cyl >> 2) & 0xC0) | 63); /* End sector */\r | |
6026 | p[7] = (BYTE)e_cyl; /* End cylinder */\r | |
6027 | st_dword(p + 8, s_part); /* Start sector in LBA */\r | |
6028 | st_dword(p + 12, sz_part); /* Number of sectors */\r | |
6029 | \r | |
6030 | /* Next partition */\r | |
6031 | b_cyl += p_cyl;\r | |
6032 | }\r | |
6033 | st_word(p, 0xAA55); /* MBR signature (always at offset 510) */\r | |
6034 | \r | |
6035 | /* Write it to the MBR */\r | |
6036 | res = (disk_write(pdrv, buf, 0, 1) == RES_OK && disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;\r | |
6037 | LEAVE_MKFS(res);\r | |
6038 | }\r | |
6039 | \r | |
6040 | #endif /* FF_MULTI_PARTITION */\r | |
6041 | #endif /* FF_USE_MKFS && !FF_FS_READONLY */\r | |
6042 | \r | |
6043 | \r | |
6044 | \r | |
6045 | \r | |
6046 | #if FF_USE_STRFUNC\r | |
6047 | #if FF_USE_LFN && FF_LFN_UNICODE && (FF_STRF_ENCODE < 0 || FF_STRF_ENCODE > 3)\r | |
6048 | #error Wrong FF_STRF_ENCODE setting\r | |
6049 | #endif\r | |
6050 | /*-----------------------------------------------------------------------*/\r | |
6051 | /* Get a String from the File */\r | |
6052 | /*-----------------------------------------------------------------------*/\r | |
6053 | \r | |
6054 | TCHAR* f_gets (\r | |
6055 | TCHAR* buff, /* Pointer to the string buffer to read */\r | |
6056 | int len, /* Size of string buffer (items) */\r | |
6057 | FIL* fp /* Pointer to the file object */\r | |
6058 | )\r | |
6059 | {\r | |
6060 | int nc = 0;\r | |
6061 | TCHAR *p = buff;\r | |
6062 | BYTE s[4];\r | |
6063 | UINT rc;\r | |
6064 | DWORD dc;\r | |
6065 | #if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE <= 2\r | |
6066 | WCHAR wc;\r | |
6067 | #endif\r | |
6068 | #if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE == 3\r | |
6069 | UINT ct;\r | |
6070 | #endif\r | |
6071 | \r | |
6072 | #if FF_USE_LFN && FF_LFN_UNICODE /* With code conversion (Unicode API) */\r | |
6073 | /* Make a room for the character and terminator */\r | |
6074 | if (FF_LFN_UNICODE == 1) len -= (FF_STRF_ENCODE == 0) ? 1 : 2;\r | |
6075 | if (FF_LFN_UNICODE == 2) len -= (FF_STRF_ENCODE == 0) ? 3 : 4;\r | |
6076 | if (FF_LFN_UNICODE == 3) len -= 1;\r | |
6077 | while (nc < len) {\r | |
6078 | #if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */\r | |
6079 | f_read(fp, s, 1, &rc);\r | |
6080 | if (rc != 1) break;\r | |
6081 | wc = s[0];\r | |
6082 | if (dbc_1st((BYTE)wc)) {\r | |
6083 | f_read(fp, s, 1, &rc);\r | |
6084 | if (rc != 1 || !dbc_2nd(s[0])) continue;\r | |
6085 | wc = wc << 8 | s[0];\r | |
6086 | }\r | |
6087 | dc = ff_oem2uni(wc, CODEPAGE);\r | |
6088 | if (dc == 0) continue;\r | |
6089 | #elif FF_STRF_ENCODE == 1 || FF_STRF_ENCODE == 2 /* Read a character in UTF-16LE/BE */\r | |
6090 | f_read(fp, s, 2, &rc);\r | |
6091 | if (rc != 2) break;\r | |
6092 | dc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1];\r | |
6093 | if (IsSurrogateL(dc)) continue;\r | |
6094 | if (IsSurrogateH(dc)) {\r | |
6095 | f_read(fp, s, 2, &rc);\r | |
6096 | if (rc != 2) break;\r | |
6097 | wc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1];\r | |
6098 | if (!IsSurrogateL(wc)) continue;\r | |
6099 | dc = ((dc & 0x3FF) + 0x40) << 10 | (wc & 0x3FF);\r | |
6100 | }\r | |
6101 | #else /* Read a character in UTF-8 */\r | |
6102 | f_read(fp, s, 1, &rc);\r | |
6103 | if (rc != 1) break;\r | |
6104 | dc = s[0];\r | |
6105 | if (dc >= 0x80) { /* Multi-byte character? */\r | |
6106 | ct = 0;\r | |
6107 | if ((dc & 0xE0) == 0xC0) { dc &= 0x1F; ct = 1; } /* 2-byte? */\r | |
6108 | if ((dc & 0xF0) == 0xE0) { dc &= 0x0F; ct = 2; } /* 3-byte? */\r | |
6109 | if ((dc & 0xF8) == 0xF0) { dc &= 0x07; ct = 3; } /* 4-byte? */\r | |
6110 | if (ct == 0) continue;\r | |
6111 | f_read(fp, s, ct, &rc); /* Get trailing bytes */\r | |
6112 | if (rc != ct) break;\r | |
6113 | rc = 0;\r | |
6114 | do { /* Merge trailing bytes */\r | |
6115 | if ((s[rc] & 0xC0) != 0x80) break;\r | |
6116 | dc = dc << 6 | (s[rc] & 0x3F);\r | |
6117 | } while (++rc < ct);\r | |
6118 | if (rc != ct || dc < 0x80 || IsSurrogate(dc) || dc >= 0x110000) continue; /* Wrong encoding? */\r | |
6119 | }\r | |
6120 | #endif\r | |
6121 | if (FF_USE_STRFUNC == 2 && dc == '\r') continue; /* Strip \r off if needed */\r | |
6122 | #if FF_LFN_UNICODE == 1 || FF_LFN_UNICODE == 3 /* Output it in UTF-16/32 encoding */\r | |
6123 | if (FF_LFN_UNICODE == 1 && dc >= 0x10000) { /* Out of BMP at UTF-16? */\r | |
6124 | *p++ = (TCHAR)(0xD800 | ((dc >> 10) - 0x40)); nc++; /* Make and output high surrogate */\r | |
6125 | dc = 0xDC00 | (dc & 0x3FF); /* Make low surrogate */\r | |
6126 | }\r | |
6127 | *p++ = (TCHAR)dc; nc++;\r | |
6128 | if (dc == '\n') break; /* End of line? */\r | |
6129 | #elif FF_LFN_UNICODE == 2 /* Output it in UTF-8 encoding */\r | |
6130 | if (dc < 0x80) { /* 1-byte */\r | |
6131 | *p++ = (TCHAR)dc;\r | |
6132 | nc++;\r | |
6133 | if (dc == '\n') break; /* End of line? */\r | |
6134 | } else {\r | |
6135 | if (dc < 0x800) { /* 2-byte */\r | |
6136 | *p++ = (TCHAR)(0xC0 | (dc >> 6 & 0x1F));\r | |
6137 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6138 | nc += 2;\r | |
6139 | } else {\r | |
6140 | if (dc < 0x10000) { /* 3-byte */\r | |
6141 | *p++ = (TCHAR)(0xE0 | (dc >> 12 & 0x0F));\r | |
6142 | *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));\r | |
6143 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6144 | nc += 3;\r | |
6145 | } else { /* 4-byte */\r | |
6146 | *p++ = (TCHAR)(0xF0 | (dc >> 18 & 0x07));\r | |
6147 | *p++ = (TCHAR)(0x80 | (dc >> 12 & 0x3F));\r | |
6148 | *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));\r | |
6149 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6150 | nc += 4;\r | |
6151 | }\r | |
6152 | }\r | |
6153 | }\r | |
6154 | #endif\r | |
6155 | }\r | |
6156 | \r | |
6157 | #else /* Byte-by-byte without any conversion (ANSI/OEM API) */\r | |
6158 | len -= 1; /* Make a room for the terminator */\r | |
6159 | while (nc < len) {\r | |
6160 | f_read(fp, s, 1, &rc);\r | |
6161 | if (rc != 1) break;\r | |
6162 | dc = s[0];\r | |
6163 | if (FF_USE_STRFUNC == 2 && dc == '\r') continue;\r | |
6164 | *p++ = (TCHAR)dc; nc++;\r | |
6165 | if (dc == '\n') break;\r | |
6166 | }\r | |
6167 | #endif\r | |
6168 | \r | |
6169 | *p = 0; /* Terminate the string */\r | |
6170 | return nc ? buff : 0; /* When no data read due to EOF or error, return with error. */\r | |
6171 | }\r | |
6172 | \r | |
6173 | \r | |
6174 | \r | |
6175 | \r | |
6176 | #if !FF_FS_READONLY\r | |
6177 | #include <stdarg.h>\r | |
6178 | /*-----------------------------------------------------------------------*/\r | |
6179 | /* Put a Character to the File */\r | |
6180 | /*-----------------------------------------------------------------------*/\r | |
6181 | \r | |
6182 | typedef struct { /* Putchar output buffer and work area */\r | |
6183 | FIL *fp; /* Ptr to the writing file */\r | |
6184 | int idx, nchr; /* Write index of buf[] (-1:error), number of encoding units written */\r | |
6185 | #if FF_USE_LFN && FF_LFN_UNICODE == 1\r | |
6186 | WCHAR hs;\r | |
6187 | #elif FF_USE_LFN && FF_LFN_UNICODE == 2\r | |
6188 | BYTE bs[4];\r | |
6189 | UINT wi, ct;\r | |
6190 | #endif\r | |
6191 | BYTE buf[64]; /* Write buffer */\r | |
6192 | } putbuff;\r | |
6193 | \r | |
6194 | \r | |
6195 | static\r | |
6196 | void putc_bfd ( /* Buffered write with code conversion */\r | |
6197 | putbuff* pb,\r | |
6198 | TCHAR c\r | |
6199 | )\r | |
6200 | {\r | |
6201 | UINT n;\r | |
6202 | int i, nc;\r | |
6203 | #if FF_USE_LFN && FF_LFN_UNICODE\r | |
6204 | WCHAR hs, wc;\r | |
6205 | #if FF_LFN_UNICODE == 2\r | |
6206 | DWORD dc;\r | |
6207 | TCHAR *tp;\r | |
6208 | #endif\r | |
6209 | #endif\r | |
6210 | \r | |
6211 | if (FF_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */\r | |
6212 | putc_bfd(pb, '\r');\r | |
6213 | }\r | |
6214 | \r | |
6215 | i = pb->idx; /* Write index of pb->buf[] */\r | |
6216 | if (i < 0) return;\r | |
6217 | nc = pb->nchr; /* Write unit counter */\r | |
6218 | \r | |
6219 | #if FF_USE_LFN && FF_LFN_UNICODE\r | |
6220 | #if FF_LFN_UNICODE == 1 /* UTF-16 input */\r | |
6221 | if (IsSurrogateH(c)) {\r | |
6222 | pb->hs = c; return;\r | |
6223 | }\r | |
6224 | hs = pb->hs; pb->hs = 0;\r | |
6225 | if (hs != 0) {\r | |
6226 | if (!IsSurrogateL(c)) hs = 0;\r | |
6227 | } else {\r | |
6228 | if (IsSurrogateL(c)) return;\r | |
6229 | }\r | |
6230 | wc = c;\r | |
6231 | #elif FF_LFN_UNICODE == 2 /* UTF-8 input */\r | |
6232 | for (;;) {\r | |
6233 | if (pb->ct == 0) { /* Out of multi-byte sequence? */\r | |
6234 | pb->bs[pb->wi = 0] = (BYTE)c; /* Save 1st byte */\r | |
6235 | if ((BYTE)c < 0x80) break; /* 1-byte? */\r | |
6236 | if (((BYTE)c & 0xE0) == 0xC0) pb->ct = 1; /* 2-byte? */\r | |
6237 | if (((BYTE)c & 0xF0) == 0xE0) pb->ct = 2; /* 3-byte? */\r | |
6238 | if (((BYTE)c & 0xF1) == 0xF0) pb->ct = 3; /* 4-byte? */\r | |
6239 | return;\r | |
6240 | } else { /* In the multi-byte sequence */\r | |
6241 | if (((BYTE)c & 0xC0) != 0x80) { /* Broken sequence? */\r | |
6242 | pb->ct = 0; continue;\r | |
6243 | }\r | |
6244 | pb->bs[++pb->wi] = (BYTE)c; /* Save the trailing byte */\r | |
6245 | if (--pb->ct == 0) break; /* End of multi-byte sequence? */\r | |
6246 | return;\r | |
6247 | }\r | |
6248 | }\r | |
6249 | tp = (TCHAR*)pb->bs;\r | |
6250 | dc = tchar2uni(&tp); /* UTF-8 ==> UTF-16 */\r | |
6251 | if (dc == 0xFFFFFFFF) return;\r | |
6252 | wc = (WCHAR)dc;\r | |
6253 | hs = (WCHAR)(dc >> 16);\r | |
6254 | #elif FF_LFN_UNICODE == 3 /* UTF-32 input */\r | |
6255 | if (IsSurrogate(c) || c >= 0x110000) return;\r | |
6256 | if (c >= 0x10000) {\r | |
6257 | hs = (WCHAR)(0xD800 | ((c >> 10) - 0x40)); /* Make high surrogate */\r | |
6258 | wc = 0xDC00 | (c & 0x3FF); /* Make low surrogate */\r | |
6259 | } else {\r | |
6260 | hs = 0;\r | |
6261 | wc = (WCHAR)c;\r | |
6262 | }\r | |
6263 | #endif\r | |
6264 | \r | |
6265 | #if FF_STRF_ENCODE == 1 /* Write a character in UTF-16LE */\r | |
6266 | if (hs != 0) {\r | |
6267 | st_word(&pb->buf[i], hs);\r | |
6268 | i += 2;\r | |
6269 | nc++;\r | |
6270 | }\r | |
6271 | st_word(&pb->buf[i], wc);\r | |
6272 | i += 2;\r | |
6273 | #elif FF_STRF_ENCODE == 2 /* Write a character in UTF-16BE */\r | |
6274 | if (hs != 0) {\r | |
6275 | pb->buf[i++] = (BYTE)(hs >> 8);\r | |
6276 | pb->buf[i++] = (BYTE)hs;\r | |
6277 | nc++;\r | |
6278 | }\r | |
6279 | pb->buf[i++] = (BYTE)(wc >> 8);\r | |
6280 | pb->buf[i++] = (BYTE)wc;\r | |
6281 | #elif FF_STRF_ENCODE == 3 /* Write it in UTF-8 */\r | |
6282 | if (hs != 0) { /* 4-byte */\r | |
6283 | nc += 3;\r | |
6284 | hs = (hs & 0x3FF) + 0x40;\r | |
6285 | pb->buf[i++] = (BYTE)(0xF0 | hs >> 8);\r | |
6286 | pb->buf[i++] = (BYTE)(0x80 | (hs >> 2 & 0x3F));\r | |
6287 | pb->buf[i++] = (BYTE)(0x80 | (hs & 3) << 4 | (wc >> 6 & 0x0F));\r | |
6288 | pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));\r | |
6289 | } else {\r | |
6290 | if (wc < 0x80) { /* 1-byte */\r | |
6291 | pb->buf[i++] = (BYTE)wc;\r | |
6292 | } else {\r | |
6293 | if (wc < 0x800) { /* 2-byte */\r | |
6294 | nc += 1;\r | |
6295 | pb->buf[i++] = (BYTE)(0xC0 | wc >> 6);\r | |
6296 | } else { /* 3-byte */\r | |
6297 | nc += 2;\r | |
6298 | pb->buf[i++] = (BYTE)(0xE0 | wc >> 12);\r | |
6299 | pb->buf[i++] = (BYTE)(0x80 | (wc >> 6 & 0x3F));\r | |
6300 | }\r | |
6301 | pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));\r | |
6302 | }\r | |
6303 | }\r | |
6304 | #else /* Write it in ANSI/OEM */\r | |
6305 | if (hs != 0) return;\r | |
6306 | wc = ff_uni2oem(wc, CODEPAGE); /* UTF-16 ==> ANSI/OEM */\r | |
6307 | if (wc == 0) return;;\r | |
6308 | if (wc >= 0x100) {\r | |
6309 | pb->buf[i++] = (BYTE)(wc >> 8); nc++;\r | |
6310 | }\r | |
6311 | pb->buf[i++] = (BYTE)wc;\r | |
6312 | #endif\r | |
6313 | \r | |
6314 | #else /* ANSI/OEM input (without re-encode) */\r | |
6315 | pb->buf[i++] = (BYTE)c;\r | |
6316 | #endif\r | |
6317 | \r | |
6318 | if (i >= (int)(sizeof pb->buf) - 4) { /* Write buffered characters to the file */\r | |
6319 | f_write(pb->fp, pb->buf, (UINT)i, &n);\r | |
6320 | i = (n == (UINT)i) ? 0 : -1;\r | |
6321 | }\r | |
6322 | pb->idx = i;\r | |
6323 | pb->nchr = nc + 1;\r | |
6324 | }\r | |
6325 | \r | |
6326 | \r | |
6327 | static\r | |
6328 | int putc_flush ( /* Flush left characters in the buffer */\r | |
6329 | putbuff* pb\r | |
6330 | )\r | |
6331 | {\r | |
6332 | UINT nw;\r | |
6333 | \r | |
6334 | if ( pb->idx >= 0 /* Flush buffered characters to the file */\r | |
6335 | && f_write(pb->fp, pb->buf, (UINT)pb->idx, &nw) == FR_OK\r | |
6336 | && (UINT)pb->idx == nw) return pb->nchr;\r | |
6337 | return EOF;\r | |
6338 | }\r | |
6339 | \r | |
6340 | \r | |
6341 | static\r | |
6342 | void putc_init ( /* Initialize write buffer */\r | |
6343 | putbuff* pb,\r | |
6344 | FIL* fp\r | |
6345 | )\r | |
6346 | {\r | |
6347 | mem_set(pb, 0, sizeof (putbuff));\r | |
6348 | pb->fp = fp;\r | |
6349 | }\r | |
6350 | \r | |
6351 | \r | |
6352 | \r | |
6353 | int f_putc (\r | |
6354 | TCHAR c, /* A character to be output */\r | |
6355 | FIL* fp /* Pointer to the file object */\r | |
6356 | )\r | |
6357 | {\r | |
6358 | putbuff pb;\r | |
6359 | \r | |
6360 | \r | |
6361 | putc_init(&pb, fp);\r | |
6362 | putc_bfd(&pb, c); /* Put the character */\r | |
6363 | return putc_flush(&pb);\r | |
6364 | }\r | |
6365 | \r | |
6366 | \r | |
6367 | \r | |
6368 | \r | |
6369 | /*-----------------------------------------------------------------------*/\r | |
6370 | /* Put a String to the File */\r | |
6371 | /*-----------------------------------------------------------------------*/\r | |
6372 | \r | |
6373 | int f_puts (\r | |
6374 | const TCHAR* str, /* Pointer to the string to be output */\r | |
6375 | FIL* fp /* Pointer to the file object */\r | |
6376 | )\r | |
6377 | {\r | |
6378 | putbuff pb;\r | |
6379 | \r | |
6380 | \r | |
6381 | putc_init(&pb, fp);\r | |
6382 | while (*str) putc_bfd(&pb, *str++); /* Put the string */\r | |
6383 | return putc_flush(&pb);\r | |
6384 | }\r | |
6385 | \r | |
6386 | \r | |
6387 | \r | |
6388 | \r | |
6389 | /*-----------------------------------------------------------------------*/\r | |
6390 | /* Put a Formatted String to the File */\r | |
6391 | /*-----------------------------------------------------------------------*/\r | |
6392 | \r | |
6393 | int f_printf (\r | |
6394 | FIL* fp, /* Pointer to the file object */\r | |
6395 | const TCHAR* fmt, /* Pointer to the format string */\r | |
6396 | ... /* Optional arguments... */\r | |
6397 | )\r | |
6398 | {\r | |
6399 | va_list arp;\r | |
6400 | putbuff pb;\r | |
6401 | BYTE f, r;\r | |
6402 | UINT i, j, w;\r | |
6403 | DWORD v;\r | |
6404 | TCHAR c, d, str[32], *p;\r | |
6405 | \r | |
6406 | \r | |
6407 | putc_init(&pb, fp);\r | |
6408 | \r | |
6409 | va_start(arp, fmt);\r | |
6410 | \r | |
6411 | for (;;) {\r | |
6412 | c = *fmt++;\r | |
6413 | if (c == 0) break; /* End of string */\r | |
6414 | if (c != '%') { /* Non escape character */\r | |
6415 | putc_bfd(&pb, c);\r | |
6416 | continue;\r | |
6417 | }\r | |
6418 | w = f = 0;\r | |
6419 | c = *fmt++;\r | |
6420 | if (c == '0') { /* Flag: '0' padding */\r | |
6421 | f = 1; c = *fmt++;\r | |
6422 | } else {\r | |
6423 | if (c == '-') { /* Flag: left justified */\r | |
6424 | f = 2; c = *fmt++;\r | |
6425 | }\r | |
6426 | }\r | |
6427 | if (c == '*') { /* Minimum width by argument */\r | |
6428 | w = va_arg(arp, int);\r | |
6429 | c = *fmt++;\r | |
6430 | } else {\r | |
6431 | while (IsDigit(c)) { /* Minimum width */\r | |
6432 | w = w * 10 + c - '0';\r | |
6433 | c = *fmt++;\r | |
6434 | }\r | |
6435 | }\r | |
6436 | if (c == 'l' || c == 'L') { /* Type prefix: Size is long int */\r | |
6437 | f |= 4; c = *fmt++;\r | |
6438 | }\r | |
6439 | if (c == 0) break;\r | |
6440 | d = c;\r | |
6441 | if (IsLower(d)) d -= 0x20;\r | |
6442 | switch (d) { /* Atgument type is... */\r | |
6443 | case 'S' : /* String */\r | |
6444 | p = va_arg(arp, TCHAR*);\r | |
6445 | for (j = 0; p[j]; j++) ;\r | |
6446 | if (!(f & 2)) { /* Right padded */\r | |
6447 | while (j++ < w) putc_bfd(&pb, ' ') ;\r | |
6448 | }\r | |
6449 | while (*p) putc_bfd(&pb, *p++) ; /* String body */\r | |
6450 | while (j++ < w) putc_bfd(&pb, ' ') ; /* Left padded */\r | |
6451 | continue;\r | |
6452 | \r | |
6453 | case 'C' : /* Character */\r | |
6454 | putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;\r | |
6455 | \r | |
6456 | case 'B' : /* Unsigned binary */\r | |
6457 | r = 2; break;\r | |
6458 | \r | |
6459 | case 'O' : /* Unsigned octal */\r | |
6460 | r = 8; break;\r | |
6461 | \r | |
6462 | case 'D' : /* Signed decimal */\r | |
6463 | case 'U' : /* Unsigned decimal */\r | |
6464 | r = 10; break;\r | |
6465 | \r | |
6466 | case 'X' : /* Unsigned hexdecimal */\r | |
6467 | r = 16; break;\r | |
6468 | \r | |
6469 | default: /* Unknown type (pass-through) */\r | |
6470 | putc_bfd(&pb, c); continue;\r | |
6471 | }\r | |
6472 | \r | |
6473 | /* Get an argument and put it in numeral */\r | |
6474 | v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));\r | |
6475 | if (d == 'D' && (v & 0x80000000)) {\r | |
6476 | v = 0 - v;\r | |
6477 | f |= 8;\r | |
6478 | }\r | |
6479 | i = 0;\r | |
6480 | do {\r | |
6481 | d = (TCHAR)(v % r); v /= r;\r | |
6482 | if (d > 9) d += (c == 'x') ? 0x27 : 0x07;\r | |
6483 | str[i++] = d + '0';\r | |
6484 | } while (v && i < sizeof str / sizeof *str);\r | |
6485 | if (f & 8) str[i++] = '-';\r | |
6486 | j = i; d = (f & 1) ? '0' : ' ';\r | |
6487 | if (!(f & 2)) {\r | |
6488 | while (j++ < w) putc_bfd(&pb, d); /* Right pad */\r | |
6489 | }\r | |
6490 | do {\r | |
6491 | putc_bfd(&pb, str[--i]); /* Number body */\r | |
6492 | } while (i);\r | |
6493 | while (j++ < w) putc_bfd(&pb, d); /* Left pad */\r | |
6494 | }\r | |
6495 | \r | |
6496 | va_end(arp);\r | |
6497 | \r | |
6498 | return putc_flush(&pb);\r | |
6499 | }\r | |
6500 | \r | |
6501 | #endif /* !FF_FS_READONLY */\r | |
6502 | #endif /* FF_USE_STRFUNC */\r | |
6503 | \r | |
6504 | \r | |
6505 | \r | |
6506 | #if FF_CODE_PAGE == 0\r | |
6507 | /*-----------------------------------------------------------------------*/\r | |
6508 | /* Set Active Codepage for the Path Name */\r | |
6509 | /*-----------------------------------------------------------------------*/\r | |
6510 | \r | |
6511 | FRESULT f_setcp (\r | |
6512 | WORD cp /* Value to be set as active code page */\r | |
6513 | )\r | |
6514 | {\r | |
6515 | static const WORD validcp[] = { 437, 720, 737, 771, 775, 850, 852, 857, 860, 861, 862, 863, 864, 865, 866, 869, 932, 936, 949, 950, 0};\r | |
6516 | static const BYTE* const tables[] = {Ct437, Ct720, Ct737, Ct771, Ct775, Ct850, Ct852, Ct857, Ct860, Ct861, Ct862, Ct863, Ct864, Ct865, Ct866, Ct869, Dc932, Dc936, Dc949, Dc950, 0};\r | |
6517 | UINT i;\r | |
6518 | \r | |
6519 | \r | |
6520 | for (i = 0; validcp[i] != 0 && validcp[i] != cp; i++) ; /* Find the code page */\r | |
6521 | if (validcp[i] != cp) return FR_INVALID_PARAMETER; /* Not found? */\r | |
6522 | \r | |
6523 | CodePage = cp;\r | |
6524 | if (cp >= 900) { /* DBCS */\r | |
6525 | ExCvt = 0;\r | |
6526 | DbcTbl = tables[i];\r | |
6527 | } else { /* SBCS */\r | |
6528 | ExCvt = tables[i];\r | |
6529 | DbcTbl = 0;\r | |
6530 | }\r | |
6531 | return FR_OK;\r | |
6532 | }\r | |
6533 | #endif /* FF_CODE_PAGE == 0 */\r | |
6534 | \r |