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53668523 | 1 | /*----------------------------------------------------------------------------/\r |
5630b930 | 2 | / FatFs - Generic FAT Filesystem Module R0.15 w/patch1 /\r |
53668523 | 3 | /-----------------------------------------------------------------------------/\r |
53668523 | 4 | /\r |
5630b930 | 5 | / Copyright (C) 2022, ChaN, all right reserved.\r |
53668523 | 6 | /\r |
70702af1 L |
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 | |
289f6a14 | 10 | /\r |
70702af1 L |
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 | |
289f6a14 | 18 | /\r |
70702af1 | 19 | /----------------------------------------------------------------------------*/\r |
53668523 L |
20 | \r |
21 | \r | |
5630b930 | 22 | #include <string.h>\r |
70702af1 L |
23 | #include "ff.h" /* Declarations of FatFs API */\r |
24 | #include "diskio.h" /* Declarations of device I/O functions */\r | |
53668523 L |
25 | \r |
26 | \r | |
27 | /*--------------------------------------------------------------------------\r | |
28 | \r | |
29 | Module Private Definitions\r | |
30 | \r | |
31 | ---------------------------------------------------------------------------*/\r | |
32 | \r | |
5630b930 | 33 | #if FF_DEFINED != 80286 /* Revision ID */\r |
53668523 L |
34 | #error Wrong include file (ff.h).\r |
35 | #endif\r | |
36 | \r | |
37 | \r | |
5630b930 L |
38 | /* Limits and boundaries */\r |
39 | #define MAX_DIR 0x200000 /* Max size of FAT directory */\r | |
40 | #define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */\r | |
41 | #define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */\r | |
42 | #define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */\r | |
43 | #define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */\r | |
44 | #define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */\r | |
45 | \r | |
46 | \r | |
53668523 | 47 | /* Character code support macros */\r |
289f6a14 L |
48 | #define IsUpper(c) ((c) >= 'A' && (c) <= 'Z')\r |
49 | #define IsLower(c) ((c) >= 'a' && (c) <= 'z')\r | |
50 | #define IsDigit(c) ((c) >= '0' && (c) <= '9')\r | |
5630b930 L |
51 | #define IsSeparator(c) ((c) == '/' || (c) == '\\')\r |
52 | #define IsTerminator(c) ((UINT)(c) < (FF_USE_LFN ? ' ' : '!'))\r | |
289f6a14 L |
53 | #define IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF)\r |
54 | #define IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF)\r | |
55 | #define IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF)\r | |
53668523 | 56 | \r |
53668523 | 57 | \r |
289f6a14 | 58 | /* Additional file access control and file status flags for internal use */\r |
70702af1 L |
59 | #define FA_SEEKEND 0x20 /* Seek to end of the file on file open */\r |
60 | #define FA_MODIFIED 0x40 /* File has been modified */\r | |
61 | #define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */\r | |
62 | \r | |
63 | \r | |
5630b930 L |
64 | /* Additional file attribute bits for internal use */\r |
65 | #define AM_VOL 0x08 /* Volume label */\r | |
66 | #define AM_LFN 0x0F /* LFN entry */\r | |
67 | #define AM_MASK 0x3F /* Mask of defined bits in FAT */\r | |
68 | #define AM_MASKX 0x37 /* Mask of defined bits in exFAT */\r | |
69 | \r | |
70 | \r | |
289f6a14 L |
71 | /* Name status flags in fn[11] */\r |
72 | #define NSFLAG 11 /* Index of the name status byte */\r | |
53668523 L |
73 | #define NS_LOSS 0x01 /* Out of 8.3 format */\r |
74 | #define NS_LFN 0x02 /* Force to create LFN entry */\r | |
75 | #define NS_LAST 0x04 /* Last segment */\r | |
76 | #define NS_BODY 0x08 /* Lower case flag (body) */\r | |
77 | #define NS_EXT 0x10 /* Lower case flag (ext) */\r | |
78 | #define NS_DOT 0x20 /* Dot entry */\r | |
70702af1 L |
79 | #define NS_NOLFN 0x40 /* Do not find LFN */\r |
80 | #define NS_NONAME 0x80 /* Not followed */\r | |
53668523 L |
81 | \r |
82 | \r | |
5630b930 L |
83 | /* exFAT directory entry types */\r |
84 | #define ET_BITMAP 0x81 /* Allocation bitmap */\r | |
85 | #define ET_UPCASE 0x82 /* Up-case table */\r | |
86 | #define ET_VLABEL 0x83 /* Volume label */\r | |
87 | #define ET_FILEDIR 0x85 /* File and directory */\r | |
88 | #define ET_STREAM 0xC0 /* Stream extension */\r | |
89 | #define ET_FILENAME 0xC1 /* Name extension */\r | |
53668523 L |
90 | \r |
91 | \r | |
289f6a14 L |
92 | /* FatFs refers the FAT structure as simple byte array instead of structure member\r |
93 | / because the C structure is not binary compatible between different platforms */\r | |
53668523 | 94 | \r |
70702af1 L |
95 | #define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */\r |
96 | #define BS_OEMName 3 /* OEM name (8-byte) */\r | |
97 | #define BPB_BytsPerSec 11 /* Sector size [byte] (WORD) */\r | |
98 | #define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */\r | |
99 | #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */\r | |
100 | #define BPB_NumFATs 16 /* Number of FATs (BYTE) */\r | |
289f6a14 | 101 | #define BPB_RootEntCnt 17 /* Size of root directory area for FAT [entry] (WORD) */\r |
70702af1 L |
102 | #define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */\r |
103 | #define BPB_Media 21 /* Media descriptor byte (BYTE) */\r | |
104 | #define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */\r | |
289f6a14 | 105 | #define BPB_SecPerTrk 24 /* Number of sectors per track for int13h [sector] (WORD) */\r |
70702af1 L |
106 | #define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */\r |
107 | #define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */\r | |
108 | #define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */\r | |
109 | #define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */\r | |
289f6a14 | 110 | #define BS_NTres 37 /* WindowsNT error flag (BYTE) */\r |
70702af1 L |
111 | #define BS_BootSig 38 /* Extended boot signature (BYTE) */\r |
112 | #define BS_VolID 39 /* Volume serial number (DWORD) */\r | |
113 | #define BS_VolLab 43 /* Volume label string (8-byte) */\r | |
289f6a14 | 114 | #define BS_FilSysType 54 /* Filesystem type string (8-byte) */\r |
70702af1 L |
115 | #define BS_BootCode 62 /* Boot code (448-byte) */\r |
116 | #define BS_55AA 510 /* Signature word (WORD) */\r | |
117 | \r | |
118 | #define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */\r | |
119 | #define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */\r | |
289f6a14 | 120 | #define BPB_FSVer32 42 /* FAT32: Filesystem version (WORD) */\r |
70702af1 L |
121 | #define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */\r |
122 | #define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */\r | |
123 | #define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */\r | |
124 | #define BS_DrvNum32 64 /* FAT32: Physical drive number for int13h (BYTE) */\r | |
125 | #define BS_NTres32 65 /* FAT32: Error flag (BYTE) */\r | |
126 | #define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */\r | |
127 | #define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */\r | |
128 | #define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */\r | |
289f6a14 | 129 | #define BS_FilSysType32 82 /* FAT32: Filesystem type string (8-byte) */\r |
70702af1 L |
130 | #define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */\r |
131 | \r | |
132 | #define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */\r | |
133 | #define BPB_VolOfsEx 64 /* exFAT: Volume offset from top of the drive [sector] (QWORD) */\r | |
134 | #define BPB_TotSecEx 72 /* exFAT: Volume size [sector] (QWORD) */\r | |
135 | #define BPB_FatOfsEx 80 /* exFAT: FAT offset from top of the volume [sector] (DWORD) */\r | |
136 | #define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */\r | |
137 | #define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */\r | |
138 | #define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */\r | |
289f6a14 | 139 | #define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */\r |
70702af1 | 140 | #define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */\r |
289f6a14 L |
141 | #define BPB_FSVerEx 104 /* exFAT: Filesystem version (WORD) */\r |
142 | #define BPB_VolFlagEx 106 /* exFAT: Volume flags (WORD) */\r | |
143 | #define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */\r | |
144 | #define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */\r | |
70702af1 L |
145 | #define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */\r |
146 | #define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */\r | |
147 | #define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */\r | |
289f6a14 | 148 | #define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */\r |
70702af1 L |
149 | #define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */\r |
150 | \r | |
289f6a14 L |
151 | #define DIR_Name 0 /* Short file name (11-byte) */\r |
152 | #define DIR_Attr 11 /* Attribute (BYTE) */\r | |
153 | #define DIR_NTres 12 /* Lower case flag (BYTE) */\r | |
154 | #define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */\r | |
155 | #define DIR_CrtTime 14 /* Created time (DWORD) */\r | |
156 | #define DIR_LstAccDate 18 /* Last accessed date (WORD) */\r | |
157 | #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */\r | |
158 | #define DIR_ModTime 22 /* Modified time (DWORD) */\r | |
159 | #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */\r | |
160 | #define DIR_FileSize 28 /* File size (DWORD) */\r | |
161 | #define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */\r | |
162 | #define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */\r | |
163 | #define LDIR_Type 12 /* LFN: Entry type (BYTE) */\r | |
164 | #define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */\r | |
165 | #define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */\r | |
166 | #define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */\r | |
167 | #define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */\r | |
168 | #define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */\r | |
169 | #define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */\r | |
170 | #define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */\r | |
171 | #define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */\r | |
172 | #define XDIR_Attr 4 /* exFAT: File attribute (WORD) */\r | |
173 | #define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */\r | |
174 | #define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */\r | |
175 | #define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */\r | |
176 | #define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */\r | |
177 | #define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */\r | |
178 | #define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */\r | |
179 | #define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */\r | |
180 | #define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */\r | |
181 | #define XDIR_GenFlags 33 /* exFAT: General secondary flags (BYTE) */\r | |
182 | #define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */\r | |
183 | #define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */\r | |
184 | #define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */\r | |
185 | #define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */\r | |
186 | #define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */\r | |
187 | \r | |
188 | #define SZDIRE 32 /* Size of a directory entry */\r | |
189 | #define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */\r | |
190 | #define RDDEM 0x05 /* Replacement of the character collides with DDEM */\r | |
191 | #define LLEF 0x40 /* Last long entry flag in LDIR_Ord */\r | |
192 | \r | |
193 | #define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */\r | |
194 | #define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */\r | |
195 | #define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */\r | |
196 | #define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */\r | |
70702af1 L |
197 | \r |
198 | #define MBR_Table 446 /* MBR: Offset of partition table in the MBR */\r | |
289f6a14 | 199 | #define SZ_PTE 16 /* MBR: Size of a partition table entry */\r |
70702af1 L |
200 | #define PTE_Boot 0 /* MBR PTE: Boot indicator */\r |
201 | #define PTE_StHead 1 /* MBR PTE: Start head */\r | |
202 | #define PTE_StSec 2 /* MBR PTE: Start sector */\r | |
203 | #define PTE_StCyl 3 /* MBR PTE: Start cylinder */\r | |
204 | #define PTE_System 4 /* MBR PTE: System ID */\r | |
205 | #define PTE_EdHead 5 /* MBR PTE: End head */\r | |
206 | #define PTE_EdSec 6 /* MBR PTE: End sector */\r | |
207 | #define PTE_EdCyl 7 /* MBR PTE: End cylinder */\r | |
208 | #define PTE_StLba 8 /* MBR PTE: Start in LBA */\r | |
209 | #define PTE_SizLba 12 /* MBR PTE: Size in LBA */\r | |
210 | \r | |
5630b930 L |
211 | #define GPTH_Sign 0 /* GPT HDR: Signature (8-byte) */\r |
212 | #define GPTH_Rev 8 /* GPT HDR: Revision (DWORD) */\r | |
213 | #define GPTH_Size 12 /* GPT HDR: Header size (DWORD) */\r | |
214 | #define GPTH_Bcc 16 /* GPT HDR: Header BCC (DWORD) */\r | |
215 | #define GPTH_CurLba 24 /* GPT HDR: This header LBA (QWORD) */\r | |
216 | #define GPTH_BakLba 32 /* GPT HDR: Another header LBA (QWORD) */\r | |
217 | #define GPTH_FstLba 40 /* GPT HDR: First LBA for partition data (QWORD) */\r | |
218 | #define GPTH_LstLba 48 /* GPT HDR: Last LBA for partition data (QWORD) */\r | |
219 | #define GPTH_DskGuid 56 /* GPT HDR: Disk GUID (16-byte) */\r | |
220 | #define GPTH_PtOfs 72 /* GPT HDR: Partition table LBA (QWORD) */\r | |
221 | #define GPTH_PtNum 80 /* GPT HDR: Number of table entries (DWORD) */\r | |
222 | #define GPTH_PteSize 84 /* GPT HDR: Size of table entry (DWORD) */\r | |
223 | #define GPTH_PtBcc 88 /* GPT HDR: Partition table BCC (DWORD) */\r | |
224 | #define SZ_GPTE 128 /* GPT PTE: Size of partition table entry */\r | |
225 | #define GPTE_PtGuid 0 /* GPT PTE: Partition type GUID (16-byte) */\r | |
226 | #define GPTE_UpGuid 16 /* GPT PTE: Partition unique GUID (16-byte) */\r | |
227 | #define GPTE_FstLba 32 /* GPT PTE: First LBA of partition (QWORD) */\r | |
228 | #define GPTE_LstLba 40 /* GPT PTE: Last LBA of partition (QWORD) */\r | |
229 | #define GPTE_Flags 48 /* GPT PTE: Partition flags (QWORD) */\r | |
230 | #define GPTE_Name 56 /* GPT PTE: Partition name */\r | |
231 | \r | |
289f6a14 L |
232 | \r |
233 | /* Post process on fatal error in the file operations */\r | |
234 | #define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }\r | |
235 | \r | |
236 | \r | |
237 | /* Re-entrancy related */\r | |
238 | #if FF_FS_REENTRANT\r | |
239 | #if FF_USE_LFN == 1\r | |
5630b930 | 240 | #error Static LFN work area cannot be used in thread-safe configuration\r |
289f6a14 | 241 | #endif\r |
5630b930 | 242 | #define LEAVE_FF(fs, res) { unlock_volume(fs, res); return res; }\r |
289f6a14 L |
243 | #else\r |
244 | #define LEAVE_FF(fs, res) return res\r | |
245 | #endif\r | |
246 | \r | |
247 | \r | |
5630b930 | 248 | /* Definitions of logical drive - physical location conversion */\r |
289f6a14 L |
249 | #if FF_MULTI_PARTITION\r |
250 | #define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */\r | |
5630b930 | 251 | #define LD2PT(vol) VolToPart[vol].pt /* Get partition number (0:auto search, 1..:forced partition number) */\r |
289f6a14 | 252 | #else\r |
5630b930 L |
253 | #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is associated with the same physical drive number */\r |
254 | #define LD2PT(vol) 0 /* Auto partition search */\r | |
289f6a14 L |
255 | #endif\r |
256 | \r | |
257 | \r | |
258 | /* Definitions of sector size */\r | |
259 | #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 | |
260 | #error Wrong sector size configuration\r | |
261 | #endif\r | |
262 | #if FF_MAX_SS == FF_MIN_SS\r | |
263 | #define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */\r | |
264 | #else\r | |
265 | #define SS(fs) ((fs)->ssize) /* Variable sector size */\r | |
266 | #endif\r | |
70702af1 L |
267 | \r |
268 | \r | |
289f6a14 L |
269 | /* Timestamp */\r |
270 | #if FF_FS_NORTC == 1\r | |
271 | #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 | |
272 | #error Invalid FF_FS_NORTC settings\r | |
273 | #endif\r | |
274 | #define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16)\r | |
275 | #else\r | |
276 | #define GET_FATTIME() get_fattime()\r | |
277 | #endif\r | |
278 | \r | |
279 | \r | |
280 | /* File lock controls */\r | |
5630b930 | 281 | #if FF_FS_LOCK\r |
289f6a14 L |
282 | #if FF_FS_READONLY\r |
283 | #error FF_FS_LOCK must be 0 at read-only configuration\r | |
284 | #endif\r | |
285 | typedef struct {\r | |
5630b930 | 286 | FATFS* fs; /* Object ID 1, volume (NULL:blank entry) */\r |
289f6a14 L |
287 | DWORD clu; /* Object ID 2, containing directory (0:root) */\r |
288 | DWORD ofs; /* Object ID 3, offset in the directory */\r | |
5630b930 | 289 | UINT ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */\r |
289f6a14 L |
290 | } FILESEM;\r |
291 | #endif\r | |
292 | \r | |
293 | \r | |
294 | /* SBCS up-case tables (\x80-\xFF) */\r | |
295 | #define TBL_CT437 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
296 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
297 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
298 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
299 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
300 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
301 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
302 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
303 | #define TBL_CT720 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
304 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
305 | 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
306 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
307 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
308 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
309 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
310 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
311 | #define TBL_CT737 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
312 | 0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \\r | |
313 | 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \\r | |
314 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
315 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
316 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
317 | 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
318 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
319 | #define TBL_CT771 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
320 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
321 | 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
322 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
323 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
324 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \\r | |
325 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
326 | 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}\r | |
327 | #define TBL_CT775 {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \\r | |
328 | 0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \\r | |
329 | 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
330 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
331 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
332 | 0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
333 | 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \\r | |
334 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
335 | #define TBL_CT850 {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \\r | |
336 | 0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \\r | |
337 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
338 | 0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
339 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
340 | 0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \\r | |
341 | 0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \\r | |
342 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
343 | #define TBL_CT852 {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \\r | |
344 | 0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \\r | |
345 | 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \\r | |
346 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \\r | |
347 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
348 | 0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
349 | 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \\r | |
350 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}\r | |
351 | #define TBL_CT855 {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \\r | |
352 | 0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \\r | |
353 | 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \\r | |
354 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \\r | |
355 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
356 | 0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \\r | |
357 | 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \\r | |
358 | 0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}\r | |
359 | #define TBL_CT857 {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \\r | |
360 | 0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \\r | |
361 | 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
362 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
363 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
364 | 0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
365 | 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \\r | |
366 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
367 | #define TBL_CT860 {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \\r | |
368 | 0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
369 | 0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
370 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
371 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
372 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
373 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
374 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
375 | #define TBL_CT861 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \\r | |
376 | 0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \\r | |
377 | 0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
378 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
379 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
380 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
381 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
382 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
383 | #define TBL_CT862 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
384 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
385 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
386 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
387 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
388 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
389 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
390 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
391 | #define TBL_CT863 {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \\r | |
392 | 0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \\r | |
393 | 0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
394 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
395 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
396 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
397 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
398 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
399 | #define TBL_CT864 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
400 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
401 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
402 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
403 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
404 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
405 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
406 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
407 | #define TBL_CT865 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \\r | |
408 | 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
409 | 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
410 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
411 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
412 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
413 | 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \\r | |
414 | 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
415 | #define TBL_CT866 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
416 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
417 | 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
418 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
419 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
420 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \\r | |
421 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \\r | |
422 | 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}\r | |
423 | #define TBL_CT869 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \\r | |
424 | 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \\r | |
425 | 0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \\r | |
426 | 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \\r | |
427 | 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \\r | |
428 | 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \\r | |
429 | 0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \\r | |
430 | 0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}\r | |
431 | \r | |
432 | \r | |
433 | /* DBCS code range |----- 1st byte -----| |----------- 2nd byte -----------| */\r | |
5630b930 | 434 | /* <------> <------> <------> <------> <------> */\r |
289f6a14 L |
435 | #define TBL_DC932 {0x81, 0x9F, 0xE0, 0xFC, 0x40, 0x7E, 0x80, 0xFC, 0x00, 0x00}\r |
436 | #define TBL_DC936 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0x80, 0xFE, 0x00, 0x00}\r | |
437 | #define TBL_DC949 {0x81, 0xFE, 0x00, 0x00, 0x41, 0x5A, 0x61, 0x7A, 0x81, 0xFE}\r | |
438 | #define TBL_DC950 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0xA1, 0xFE, 0x00, 0x00}\r | |
439 | \r | |
440 | \r | |
441 | /* Macros for table definitions */\r | |
442 | #define MERGE_2STR(a, b) a ## b\r | |
443 | #define MKCVTBL(hd, cp) MERGE_2STR(hd, cp)\r | |
444 | \r | |
70702af1 L |
445 | \r |
446 | \r | |
447 | \r | |
448 | /*--------------------------------------------------------------------------\r | |
449 | \r | |
450 | Module Private Work Area\r | |
451 | \r | |
452 | ---------------------------------------------------------------------------*/\r | |
289f6a14 L |
453 | /* Remark: Variables defined here without initial value shall be guaranteed\r |
454 | / zero/null at start-up. If not, the linker option or start-up routine is\r | |
70702af1 | 455 | / not compliance with C standard. */\r |
53668523 | 456 | \r |
289f6a14 L |
457 | /*--------------------------------*/\r |
458 | /* File/Volume controls */\r | |
459 | /*--------------------------------*/\r | |
460 | \r | |
461 | #if FF_VOLUMES < 1 || FF_VOLUMES > 10\r | |
462 | #error Wrong FF_VOLUMES setting\r | |
53668523 | 463 | #endif\r |
5630b930 | 464 | static FATFS *FatFs[FF_VOLUMES]; /* Pointer to the filesystem objects (logical drives) */\r |
289f6a14 | 465 | static WORD Fsid; /* Filesystem mount ID */\r |
53668523 | 466 | \r |
289f6a14 | 467 | #if FF_FS_RPATH != 0\r |
5630b930 | 468 | static BYTE CurrVol; /* Current drive set by f_chdrive() */\r |
53668523 L |
469 | #endif\r |
470 | \r | |
289f6a14 L |
471 | #if FF_FS_LOCK != 0\r |
472 | static FILESEM Files[FF_FS_LOCK]; /* Open object lock semaphores */\r | |
5630b930 L |
473 | #if FF_FS_REENTRANT\r |
474 | static BYTE SysLock; /* System lock flag (0:no mutex, 1:unlocked, 2:locked) */\r | |
475 | #endif\r | |
53668523 L |
476 | #endif\r |
477 | \r | |
289f6a14 L |
478 | #if FF_STR_VOLUME_ID\r |
479 | #ifdef FF_VOLUME_STRS\r | |
5630b930 L |
480 | static const char *const VolumeStr[FF_VOLUMES] = {FF_VOLUME_STRS}; /* Pre-defined volume ID */\r |
481 | #endif\r | |
482 | #endif\r | |
483 | \r | |
484 | #if FF_LBA64\r | |
485 | #if FF_MIN_GPT > 0x100000000\r | |
486 | #error Wrong FF_MIN_GPT setting\r | |
289f6a14 | 487 | #endif\r |
5630b930 | 488 | static const BYTE GUID_MS_Basic[16] = {0xA2,0xA0,0xD0,0xEB,0xE5,0xB9,0x33,0x44,0x87,0xC0,0x68,0xB6,0xB7,0x26,0x99,0xC7};\r |
289f6a14 L |
489 | #endif\r |
490 | \r | |
491 | \r | |
5630b930 | 492 | \r |
289f6a14 L |
493 | /*--------------------------------*/\r |
494 | /* LFN/Directory working buffer */\r | |
495 | /*--------------------------------*/\r | |
496 | \r | |
497 | #if FF_USE_LFN == 0 /* Non-LFN configuration */\r | |
498 | #if FF_FS_EXFAT\r | |
499 | #error LFN must be enabled when enable exFAT\r | |
500 | #endif\r | |
501 | #define DEF_NAMBUF\r | |
70702af1 | 502 | #define INIT_NAMBUF(fs)\r |
289f6a14 L |
503 | #define FREE_NAMBUF()\r |
504 | #define LEAVE_MKFS(res) return res\r | |
505 | \r | |
506 | #else /* LFN configurations */\r | |
507 | #if FF_MAX_LFN < 12 || FF_MAX_LFN > 255\r | |
508 | #error Wrong setting of FF_MAX_LFN\r | |
509 | #endif\r | |
510 | #if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12\r | |
511 | #error Wrong setting of FF_LFN_BUF or FF_SFN_BUF\r | |
7b78a5a2 | 512 | #endif\r |
289f6a14 L |
513 | #if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3\r |
514 | #error Wrong setting of FF_LFN_UNICODE\r | |
515 | #endif\r | |
516 | 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 | |
517 | #define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE) /* exFAT: Size of directory entry block scratchpad buffer needed for the name length */\r | |
70702af1 | 518 | \r |
289f6a14 L |
519 | #if FF_USE_LFN == 1 /* LFN enabled with static working buffer */\r |
520 | #if FF_FS_EXFAT\r | |
521 | static BYTE DirBuf[MAXDIRB(FF_MAX_LFN)]; /* Directory entry block scratchpad buffer */\r | |
70702af1 | 522 | #endif\r |
289f6a14 L |
523 | static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */\r |
524 | #define DEF_NAMBUF\r | |
70702af1 | 525 | #define INIT_NAMBUF(fs)\r |
289f6a14 L |
526 | #define FREE_NAMBUF()\r |
527 | #define LEAVE_MKFS(res) return res\r | |
70702af1 | 528 | \r |
289f6a14 L |
529 | #elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */\r |
530 | #if FF_FS_EXFAT\r | |
531 | #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 | |
70702af1 | 532 | #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; }\r |
289f6a14 | 533 | #define FREE_NAMBUF()\r |
70702af1 | 534 | #else\r |
289f6a14 | 535 | #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */\r |
70702af1 | 536 | #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; }\r |
289f6a14 | 537 | #define FREE_NAMBUF()\r |
70702af1 | 538 | #endif\r |
289f6a14 | 539 | #define LEAVE_MKFS(res) return res\r |
70702af1 | 540 | \r |
289f6a14 L |
541 | #elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */\r |
542 | #if FF_FS_EXFAT\r | |
543 | #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */\r | |
544 | #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 | |
545 | #define FREE_NAMBUF() ff_memfree(lfn)\r | |
70702af1 | 546 | #else\r |
289f6a14 L |
547 | #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer */\r |
548 | #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 | |
549 | #define FREE_NAMBUF() ff_memfree(lfn)\r | |
70702af1 | 550 | #endif\r |
289f6a14 L |
551 | #define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; }\r |
552 | #define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */\r | |
70702af1 | 553 | \r |
53668523 | 554 | #else\r |
289f6a14 | 555 | #error Wrong setting of FF_USE_LFN\r |
53668523 | 556 | \r |
289f6a14 L |
557 | #endif /* FF_USE_LFN == 1 */\r |
558 | #endif /* FF_USE_LFN == 0 */\r | |
559 | \r | |
560 | \r | |
561 | \r | |
562 | /*--------------------------------*/\r | |
563 | /* Code conversion tables */\r | |
564 | /*--------------------------------*/\r | |
565 | \r | |
5630b930 | 566 | #if FF_CODE_PAGE == 0 /* Run-time code page configuration */\r |
289f6a14 L |
567 | #define CODEPAGE CodePage\r |
568 | static WORD CodePage; /* Current code page */\r | |
5630b930 L |
569 | static const BYTE* ExCvt; /* Ptr to SBCS up-case table Ct???[] (null:not used) */\r |
570 | static const BYTE* DbcTbl; /* Ptr to DBCS code range table Dc???[] (null:not used) */\r | |
571 | \r | |
289f6a14 L |
572 | static const BYTE Ct437[] = TBL_CT437;\r |
573 | static const BYTE Ct720[] = TBL_CT720;\r | |
574 | static const BYTE Ct737[] = TBL_CT737;\r | |
575 | static const BYTE Ct771[] = TBL_CT771;\r | |
576 | static const BYTE Ct775[] = TBL_CT775;\r | |
577 | static const BYTE Ct850[] = TBL_CT850;\r | |
578 | static const BYTE Ct852[] = TBL_CT852;\r | |
579 | static const BYTE Ct855[] = TBL_CT855;\r | |
580 | static const BYTE Ct857[] = TBL_CT857;\r | |
581 | static const BYTE Ct860[] = TBL_CT860;\r | |
582 | static const BYTE Ct861[] = TBL_CT861;\r | |
583 | static const BYTE Ct862[] = TBL_CT862;\r | |
584 | static const BYTE Ct863[] = TBL_CT863;\r | |
585 | static const BYTE Ct864[] = TBL_CT864;\r | |
586 | static const BYTE Ct865[] = TBL_CT865;\r | |
587 | static const BYTE Ct866[] = TBL_CT866;\r | |
588 | static const BYTE Ct869[] = TBL_CT869;\r | |
589 | static const BYTE Dc932[] = TBL_DC932;\r | |
590 | static const BYTE Dc936[] = TBL_DC936;\r | |
591 | static const BYTE Dc949[] = TBL_DC949;\r | |
592 | static const BYTE Dc950[] = TBL_DC950;\r | |
593 | \r | |
594 | #elif FF_CODE_PAGE < 900 /* Static code page configuration (SBCS) */\r | |
595 | #define CODEPAGE FF_CODE_PAGE\r | |
596 | static const BYTE ExCvt[] = MKCVTBL(TBL_CT, FF_CODE_PAGE);\r | |
53668523 | 597 | \r |
289f6a14 L |
598 | #else /* Static code page configuration (DBCS) */\r |
599 | #define CODEPAGE FF_CODE_PAGE\r | |
600 | static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE);\r | |
53668523 | 601 | \r |
289f6a14 | 602 | #endif\r |
53668523 L |
603 | \r |
604 | \r | |
605 | \r | |
606 | \r | |
607 | /*--------------------------------------------------------------------------\r | |
608 | \r | |
609 | Module Private Functions\r | |
610 | \r | |
611 | ---------------------------------------------------------------------------*/\r | |
612 | \r | |
613 | \r | |
70702af1 L |
614 | /*-----------------------------------------------------------------------*/\r |
615 | /* Load/Store multi-byte word in the FAT structure */\r | |
616 | /*-----------------------------------------------------------------------*/\r | |
617 | \r | |
289f6a14 | 618 | static WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */\r |
70702af1 L |
619 | {\r |
620 | WORD rv;\r | |
621 | \r | |
622 | rv = ptr[1];\r | |
623 | rv = rv << 8 | ptr[0];\r | |
624 | return rv;\r | |
625 | }\r | |
626 | \r | |
289f6a14 | 627 | static DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */\r |
70702af1 L |
628 | {\r |
629 | DWORD rv;\r | |
630 | \r | |
631 | rv = ptr[3];\r | |
632 | rv = rv << 8 | ptr[2];\r | |
633 | rv = rv << 8 | ptr[1];\r | |
634 | rv = rv << 8 | ptr[0];\r | |
635 | return rv;\r | |
636 | }\r | |
637 | \r | |
289f6a14 L |
638 | #if FF_FS_EXFAT\r |
639 | static QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */\r | |
70702af1 L |
640 | {\r |
641 | QWORD rv;\r | |
642 | \r | |
643 | rv = ptr[7];\r | |
644 | rv = rv << 8 | ptr[6];\r | |
645 | rv = rv << 8 | ptr[5];\r | |
646 | rv = rv << 8 | ptr[4];\r | |
647 | rv = rv << 8 | ptr[3];\r | |
648 | rv = rv << 8 | ptr[2];\r | |
649 | rv = rv << 8 | ptr[1];\r | |
650 | rv = rv << 8 | ptr[0];\r | |
651 | return rv;\r | |
652 | }\r | |
653 | #endif\r | |
654 | \r | |
289f6a14 L |
655 | #if !FF_FS_READONLY\r |
656 | static void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */\r | |
70702af1 L |
657 | {\r |
658 | *ptr++ = (BYTE)val; val >>= 8;\r | |
659 | *ptr++ = (BYTE)val;\r | |
660 | }\r | |
661 | \r | |
289f6a14 | 662 | static void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */\r |
70702af1 L |
663 | {\r |
664 | *ptr++ = (BYTE)val; val >>= 8;\r | |
665 | *ptr++ = (BYTE)val; val >>= 8;\r | |
666 | *ptr++ = (BYTE)val; val >>= 8;\r | |
667 | *ptr++ = (BYTE)val;\r | |
668 | }\r | |
669 | \r | |
289f6a14 L |
670 | #if FF_FS_EXFAT\r |
671 | static void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */\r | |
70702af1 L |
672 | {\r |
673 | *ptr++ = (BYTE)val; val >>= 8;\r | |
674 | *ptr++ = (BYTE)val; val >>= 8;\r | |
675 | *ptr++ = (BYTE)val; val >>= 8;\r | |
676 | *ptr++ = (BYTE)val; val >>= 8;\r | |
677 | *ptr++ = (BYTE)val; val >>= 8;\r | |
678 | *ptr++ = (BYTE)val; val >>= 8;\r | |
679 | *ptr++ = (BYTE)val; val >>= 8;\r | |
680 | *ptr++ = (BYTE)val;\r | |
681 | }\r | |
682 | #endif\r | |
289f6a14 | 683 | #endif /* !FF_FS_READONLY */\r |
70702af1 L |
684 | \r |
685 | \r | |
686 | \r | |
53668523 L |
687 | /*-----------------------------------------------------------------------*/\r |
688 | /* String functions */\r | |
689 | /*-----------------------------------------------------------------------*/\r | |
690 | \r | |
5630b930 | 691 | /* Test if the byte is DBC 1st byte */\r |
289f6a14 L |
692 | static int dbc_1st (BYTE c)\r |
693 | {\r | |
694 | #if FF_CODE_PAGE == 0 /* Variable code page */\r | |
695 | if (DbcTbl && c >= DbcTbl[0]) {\r | |
696 | if (c <= DbcTbl[1]) return 1; /* 1st byte range 1 */\r | |
697 | if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; /* 1st byte range 2 */\r | |
698 | }\r | |
699 | #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */\r | |
700 | if (c >= DbcTbl[0]) {\r | |
701 | if (c <= DbcTbl[1]) return 1;\r | |
702 | if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1;\r | |
703 | }\r | |
704 | #else /* SBCS fixed code page */\r | |
705 | if (c != 0) return 0; /* Always false */\r | |
706 | #endif\r | |
707 | return 0;\r | |
708 | }\r | |
53668523 L |
709 | \r |
710 | \r | |
5630b930 | 711 | /* Test if the byte is DBC 2nd byte */\r |
289f6a14 L |
712 | static int dbc_2nd (BYTE c)\r |
713 | {\r | |
714 | #if FF_CODE_PAGE == 0 /* Variable code page */\r | |
715 | if (DbcTbl && c >= DbcTbl[4]) {\r | |
716 | if (c <= DbcTbl[5]) return 1; /* 2nd byte range 1 */\r | |
717 | if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; /* 2nd byte range 2 */\r | |
718 | if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; /* 2nd byte range 3 */\r | |
719 | }\r | |
720 | #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */\r | |
721 | if (c >= DbcTbl[4]) {\r | |
722 | if (c <= DbcTbl[5]) return 1;\r | |
723 | if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1;\r | |
724 | if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1;\r | |
725 | }\r | |
726 | #else /* SBCS fixed code page */\r | |
727 | if (c != 0) return 0; /* Always false */\r | |
728 | #endif\r | |
729 | return 0;\r | |
730 | }\r | |
731 | \r | |
732 | \r | |
733 | #if FF_USE_LFN\r | |
734 | \r | |
5630b930 L |
735 | /* Get a Unicode code point from the TCHAR string in defined API encodeing */\r |
736 | static DWORD tchar2uni ( /* Returns a character in UTF-16 encoding (>=0x10000 on surrogate pair, 0xFFFFFFFF on decode error) */\r | |
289f6a14 L |
737 | const TCHAR** str /* Pointer to pointer to TCHAR string in configured encoding */\r |
738 | )\r | |
739 | {\r | |
740 | DWORD uc;\r | |
741 | const TCHAR *p = *str;\r | |
742 | \r | |
743 | #if FF_LFN_UNICODE == 1 /* UTF-16 input */\r | |
744 | WCHAR wc;\r | |
745 | \r | |
746 | uc = *p++; /* Get a unit */\r | |
747 | if (IsSurrogate(uc)) { /* Surrogate? */\r | |
748 | wc = *p++; /* Get low surrogate */\r | |
749 | if (!IsSurrogateH(uc) || !IsSurrogateL(wc)) return 0xFFFFFFFF; /* Wrong surrogate? */\r | |
750 | uc = uc << 16 | wc;\r | |
751 | }\r | |
752 | \r | |
753 | #elif FF_LFN_UNICODE == 2 /* UTF-8 input */\r | |
754 | BYTE b;\r | |
755 | int nf;\r | |
756 | \r | |
5630b930 | 757 | uc = (BYTE)*p++; /* Get an encoding unit */\r |
289f6a14 | 758 | if (uc & 0x80) { /* Multiple byte code? */\r |
5630b930 | 759 | if ((uc & 0xE0) == 0xC0) { /* 2-byte sequence? */\r |
289f6a14 | 760 | uc &= 0x1F; nf = 1;\r |
5630b930 L |
761 | } else if ((uc & 0xF0) == 0xE0) { /* 3-byte sequence? */\r |
762 | uc &= 0x0F; nf = 2;\r | |
763 | } else if ((uc & 0xF8) == 0xF0) { /* 4-byte sequence? */\r | |
764 | uc &= 0x07; nf = 3;\r | |
765 | } else { /* Wrong sequence */\r | |
766 | return 0xFFFFFFFF;\r | |
289f6a14 L |
767 | }\r |
768 | do { /* Get trailing bytes */\r | |
769 | b = (BYTE)*p++;\r | |
770 | if ((b & 0xC0) != 0x80) return 0xFFFFFFFF; /* Wrong sequence? */\r | |
771 | uc = uc << 6 | (b & 0x3F);\r | |
772 | } while (--nf != 0);\r | |
773 | if (uc < 0x80 || IsSurrogate(uc) || uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */\r | |
774 | if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */\r | |
775 | }\r | |
776 | \r | |
777 | #elif FF_LFN_UNICODE == 3 /* UTF-32 input */\r | |
778 | uc = (TCHAR)*p++; /* Get a unit */\r | |
5630b930 | 779 | if (uc >= 0x110000 || IsSurrogate(uc)) return 0xFFFFFFFF; /* Wrong code? */\r |
289f6a14 L |
780 | if (uc >= 0x010000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */\r |
781 | \r | |
782 | #else /* ANSI/OEM input */\r | |
783 | BYTE b;\r | |
784 | WCHAR wc;\r | |
785 | \r | |
786 | wc = (BYTE)*p++; /* Get a byte */\r | |
787 | if (dbc_1st((BYTE)wc)) { /* Is it a DBC 1st byte? */\r | |
788 | b = (BYTE)*p++; /* Get 2nd byte */\r | |
789 | if (!dbc_2nd(b)) return 0xFFFFFFFF; /* Invalid code? */\r | |
790 | wc = (wc << 8) + b; /* Make a DBC */\r | |
791 | }\r | |
792 | if (wc != 0) {\r | |
793 | wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM ==> Unicode */\r | |
794 | if (wc == 0) return 0xFFFFFFFF; /* Invalid code? */\r | |
795 | }\r | |
796 | uc = wc;\r | |
797 | \r | |
798 | #endif\r | |
799 | *str = p; /* Next read pointer */\r | |
800 | return uc;\r | |
801 | }\r | |
802 | \r | |
803 | \r | |
5630b930 L |
804 | /* Store a Unicode char in defined API encoding */\r |
805 | static UINT put_utf ( /* Returns number of encoding units written (0:buffer overflow or wrong encoding) */\r | |
806 | DWORD chr, /* UTF-16 encoded character (Surrogate pair if >=0x10000) */\r | |
289f6a14 L |
807 | TCHAR* buf, /* Output buffer */\r |
808 | UINT szb /* Size of the buffer */\r | |
809 | )\r | |
810 | {\r | |
811 | #if FF_LFN_UNICODE == 1 /* UTF-16 output */\r | |
812 | WCHAR hs, wc;\r | |
813 | \r | |
814 | hs = (WCHAR)(chr >> 16);\r | |
815 | wc = (WCHAR)chr;\r | |
816 | if (hs == 0) { /* Single encoding unit? */\r | |
817 | if (szb < 1 || IsSurrogate(wc)) return 0; /* Buffer overflow or wrong code? */\r | |
818 | *buf = wc;\r | |
819 | return 1;\r | |
820 | }\r | |
821 | if (szb < 2 || !IsSurrogateH(hs) || !IsSurrogateL(wc)) return 0; /* Buffer overflow or wrong surrogate? */\r | |
822 | *buf++ = hs;\r | |
823 | *buf++ = wc;\r | |
824 | return 2;\r | |
825 | \r | |
826 | #elif FF_LFN_UNICODE == 2 /* UTF-8 output */\r | |
827 | DWORD hc;\r | |
828 | \r | |
829 | if (chr < 0x80) { /* Single byte code? */\r | |
830 | if (szb < 1) return 0; /* Buffer overflow? */\r | |
831 | *buf = (TCHAR)chr;\r | |
832 | return 1;\r | |
833 | }\r | |
834 | if (chr < 0x800) { /* 2-byte sequence? */\r | |
835 | if (szb < 2) return 0; /* Buffer overflow? */\r | |
836 | *buf++ = (TCHAR)(0xC0 | (chr >> 6 & 0x1F));\r | |
837 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
838 | return 2;\r | |
839 | }\r | |
840 | if (chr < 0x10000) { /* 3-byte sequence? */\r | |
841 | if (szb < 3 || IsSurrogate(chr)) return 0; /* Buffer overflow or wrong code? */\r | |
842 | *buf++ = (TCHAR)(0xE0 | (chr >> 12 & 0x0F));\r | |
843 | *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));\r | |
844 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
845 | return 3;\r | |
846 | }\r | |
847 | /* 4-byte sequence */\r | |
848 | if (szb < 4) return 0; /* Buffer overflow? */\r | |
849 | hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */\r | |
850 | chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */\r | |
851 | if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */\r | |
852 | chr = (hc | chr) + 0x10000;\r | |
853 | *buf++ = (TCHAR)(0xF0 | (chr >> 18 & 0x07));\r | |
854 | *buf++ = (TCHAR)(0x80 | (chr >> 12 & 0x3F));\r | |
855 | *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));\r | |
856 | *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));\r | |
857 | return 4;\r | |
858 | \r | |
859 | #elif FF_LFN_UNICODE == 3 /* UTF-32 output */\r | |
860 | DWORD hc;\r | |
861 | \r | |
862 | if (szb < 1) return 0; /* Buffer overflow? */\r | |
863 | if (chr >= 0x10000) { /* Out of BMP? */\r | |
864 | hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */\r | |
865 | chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */\r | |
866 | if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */\r | |
867 | chr = (hc | chr) + 0x10000;\r | |
868 | }\r | |
869 | *buf++ = (TCHAR)chr;\r | |
870 | return 1;\r | |
871 | \r | |
872 | #else /* ANSI/OEM output */\r | |
873 | WCHAR wc;\r | |
874 | \r | |
875 | wc = ff_uni2oem(chr, CODEPAGE);\r | |
876 | if (wc >= 0x100) { /* Is this a DBC? */\r | |
877 | if (szb < 2) return 0;\r | |
878 | *buf++ = (char)(wc >> 8); /* Store DBC 1st byte */\r | |
879 | *buf++ = (TCHAR)wc; /* Store DBC 2nd byte */\r | |
880 | return 2;\r | |
881 | }\r | |
882 | if (wc == 0 || szb < 1) return 0; /* Invalid char or buffer overflow? */\r | |
883 | *buf++ = (TCHAR)wc; /* Store the character */\r | |
884 | return 1;\r | |
885 | #endif\r | |
886 | }\r | |
887 | #endif /* FF_USE_LFN */\r | |
888 | \r | |
889 | \r | |
890 | #if FF_FS_REENTRANT\r | |
53668523 L |
891 | /*-----------------------------------------------------------------------*/\r |
892 | /* Request/Release grant to access the volume */\r | |
893 | /*-----------------------------------------------------------------------*/\r | |
5630b930 L |
894 | \r |
895 | static int lock_volume ( /* 1:Ok, 0:timeout */\r | |
896 | FATFS* fs, /* Filesystem object to lock */\r | |
897 | int syslock /* System lock required */\r | |
53668523 L |
898 | )\r |
899 | {\r | |
5630b930 L |
900 | int rv;\r |
901 | \r | |
902 | \r | |
903 | #if FF_FS_LOCK\r | |
904 | rv = ff_mutex_take(fs->ldrv); /* Lock the volume */\r | |
905 | if (rv && syslock) { /* System lock reqiered? */\r | |
906 | rv = ff_mutex_take(FF_VOLUMES); /* Lock the system */\r | |
907 | if (rv) {\r | |
908 | SysLock = 2; /* System lock succeeded */\r | |
909 | } else {\r | |
910 | ff_mutex_give(fs->ldrv); /* Failed system lock */\r | |
911 | }\r | |
912 | }\r | |
913 | #else\r | |
914 | rv = syslock ? ff_mutex_take(fs->ldrv) : ff_mutex_take(fs->ldrv); /* Lock the volume (this is to prevent compiler warning) */\r | |
915 | #endif\r | |
916 | return rv;\r | |
53668523 L |
917 | }\r |
918 | \r | |
919 | \r | |
5630b930 | 920 | static void unlock_volume (\r |
289f6a14 | 921 | FATFS* fs, /* Filesystem object */\r |
53668523 L |
922 | FRESULT res /* Result code to be returned */\r |
923 | )\r | |
924 | {\r | |
70702af1 | 925 | if (fs && res != FR_NOT_ENABLED && res != FR_INVALID_DRIVE && res != FR_TIMEOUT) {\r |
5630b930 L |
926 | #if FF_FS_LOCK\r |
927 | if (SysLock == 2) { /* Is the system locked? */\r | |
928 | SysLock = 1;\r | |
929 | ff_mutex_give(FF_VOLUMES);\r | |
930 | }\r | |
931 | #endif\r | |
932 | ff_mutex_give(fs->ldrv); /* Unlock the volume */\r | |
53668523 L |
933 | }\r |
934 | }\r | |
53668523 | 935 | \r |
70702af1 | 936 | #endif\r |
53668523 L |
937 | \r |
938 | \r | |
939 | \r | |
5630b930 | 940 | #if FF_FS_LOCK\r |
53668523 | 941 | /*-----------------------------------------------------------------------*/\r |
5630b930 | 942 | /* File shareing control functions */\r |
53668523 | 943 | /*-----------------------------------------------------------------------*/\r |
53668523 | 944 | \r |
5630b930 | 945 | static FRESULT chk_share ( /* Check if the file can be accessed */\r |
53668523 | 946 | DIR* dp, /* Directory object pointing the file to be checked */\r |
289f6a14 | 947 | int acc /* Desired access type (0:Read mode open, 1:Write mode open, 2:Delete or rename) */\r |
53668523 L |
948 | )\r |
949 | {\r | |
950 | UINT i, be;\r | |
951 | \r | |
289f6a14 L |
952 | /* Search open object table for the object */\r |
953 | be = 0;\r | |
954 | for (i = 0; i < FF_FS_LOCK; i++) {\r | |
53668523 | 955 | if (Files[i].fs) { /* Existing entry */\r |
289f6a14 | 956 | if (Files[i].fs == dp->obj.fs && /* Check if the object matches with an open object */\r |
70702af1 L |
957 | Files[i].clu == dp->obj.sclust &&\r |
958 | Files[i].ofs == dp->dptr) break;\r | |
53668523 L |
959 | } else { /* Blank entry */\r |
960 | be = 1;\r | |
961 | }\r | |
962 | }\r | |
289f6a14 L |
963 | if (i == FF_FS_LOCK) { /* The object has not been opened */\r |
964 | return (!be && acc != 2) ? FR_TOO_MANY_OPEN_FILES : FR_OK; /* Is there a blank entry for new object? */\r | |
70702af1 | 965 | }\r |
53668523 | 966 | \r |
289f6a14 L |
967 | /* The object was opened. Reject any open against writing file and all write mode open */\r |
968 | return (acc != 0 || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;\r | |
53668523 L |
969 | }\r |
970 | \r | |
971 | \r | |
5630b930 | 972 | static int enq_share (void) /* Check if an entry is available for a new object */\r |
53668523 L |
973 | {\r |
974 | UINT i;\r | |
975 | \r | |
5630b930 | 976 | for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; /* Find a free entry */\r |
289f6a14 | 977 | return (i == FF_FS_LOCK) ? 0 : 1;\r |
53668523 L |
978 | }\r |
979 | \r | |
980 | \r | |
5630b930 | 981 | static UINT inc_share ( /* Increment object open counter and returns its index (0:Internal error) */\r |
53668523 L |
982 | DIR* dp, /* Directory object pointing the file to register or increment */\r |
983 | int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */\r | |
984 | )\r | |
985 | {\r | |
986 | UINT i;\r | |
987 | \r | |
988 | \r | |
289f6a14 | 989 | for (i = 0; i < FF_FS_LOCK; i++) { /* Find the object */\r |
5630b930 L |
990 | if (Files[i].fs == dp->obj.fs\r |
991 | && Files[i].clu == dp->obj.sclust\r | |
992 | && Files[i].ofs == dp->dptr) break;\r | |
53668523 L |
993 | }\r |
994 | \r | |
5630b930 L |
995 | if (i == FF_FS_LOCK) { /* Not opened. Register it as new. */\r |
996 | for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ; /* Find a free entry */\r | |
289f6a14 | 997 | if (i == FF_FS_LOCK) return 0; /* No free entry to register (int err) */\r |
70702af1 L |
998 | Files[i].fs = dp->obj.fs;\r |
999 | Files[i].clu = dp->obj.sclust;\r | |
1000 | Files[i].ofs = dp->dptr;\r | |
53668523 L |
1001 | Files[i].ctr = 0;\r |
1002 | }\r | |
1003 | \r | |
289f6a14 | 1004 | if (acc >= 1 && Files[i].ctr) return 0; /* Access violation (int err) */\r |
53668523 L |
1005 | \r |
1006 | Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */\r | |
1007 | \r | |
289f6a14 | 1008 | return i + 1; /* Index number origin from 1 */\r |
53668523 L |
1009 | }\r |
1010 | \r | |
1011 | \r | |
5630b930 | 1012 | static FRESULT dec_share ( /* Decrement object open counter */\r |
53668523 L |
1013 | UINT i /* Semaphore index (1..) */\r |
1014 | )\r | |
1015 | {\r | |
5630b930 | 1016 | UINT n;\r |
53668523 L |
1017 | FRESULT res;\r |
1018 | \r | |
1019 | \r | |
289f6a14 | 1020 | if (--i < FF_FS_LOCK) { /* Index number origin from 0 */\r |
53668523 | 1021 | n = Files[i].ctr;\r |
5630b930 L |
1022 | if (n == 0x100) n = 0; /* If write mode open, delete the object semaphore */\r |
1023 | if (n > 0) n--; /* Decrement read mode open count */\r | |
53668523 | 1024 | Files[i].ctr = n;\r |
5630b930 L |
1025 | if (n == 0) { /* Delete the object semaphore if open count becomes zero */\r |
1026 | Files[i].fs = 0; /* Free the entry <<<If this memory write operation is not in atomic, FF_FS_REENTRANT == 1 and FF_VOLUMES > 1, there is a potential error in this process >>> */\r | |
1027 | }\r | |
53668523 L |
1028 | res = FR_OK;\r |
1029 | } else {\r | |
5630b930 | 1030 | res = FR_INT_ERR; /* Invalid index number */\r |
53668523 L |
1031 | }\r |
1032 | return res;\r | |
1033 | }\r | |
1034 | \r | |
1035 | \r | |
5630b930 L |
1036 | static void clear_share ( /* Clear all lock entries of the volume */\r |
1037 | FATFS* fs\r | |
53668523 L |
1038 | )\r |
1039 | {\r | |
1040 | UINT i;\r | |
1041 | \r | |
289f6a14 | 1042 | for (i = 0; i < FF_FS_LOCK; i++) {\r |
53668523 L |
1043 | if (Files[i].fs == fs) Files[i].fs = 0;\r |
1044 | }\r | |
1045 | }\r | |
53668523 | 1046 | \r |
5630b930 | 1047 | #endif /* FF_FS_LOCK */\r |
53668523 L |
1048 | \r |
1049 | \r | |
1050 | \r | |
1051 | /*-----------------------------------------------------------------------*/\r | |
289f6a14 | 1052 | /* Move/Flush disk access window in the filesystem object */\r |
53668523 | 1053 | /*-----------------------------------------------------------------------*/\r |
289f6a14 L |
1054 | #if !FF_FS_READONLY\r |
1055 | static FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1056 | FATFS* fs /* Filesystem object */\r | |
53668523 L |
1057 | )\r |
1058 | {\r | |
7b78a5a2 | 1059 | FRESULT res = FR_OK;\r |
53668523 L |
1060 | \r |
1061 | \r | |
5630b930 L |
1062 | if (fs->wflag) { /* Is the disk access window dirty? */\r |
1063 | if (disk_write(fs->pdrv, fs->win, fs->winsect, 1) == RES_OK) { /* Write it back into the volume */\r | |
289f6a14 L |
1064 | fs->wflag = 0; /* Clear window dirty flag */\r |
1065 | if (fs->winsect - fs->fatbase < fs->fsize) { /* Is it in the 1st FAT? */\r | |
1066 | if (fs->n_fats == 2) disk_write(fs->pdrv, fs->win, fs->winsect + fs->fsize, 1); /* Reflect it to 2nd FAT if needed */\r | |
53668523 | 1067 | }\r |
289f6a14 L |
1068 | } else {\r |
1069 | res = FR_DISK_ERR;\r | |
53668523 L |
1070 | }\r |
1071 | }\r | |
7b78a5a2 | 1072 | return res;\r |
53668523 L |
1073 | }\r |
1074 | #endif\r | |
1075 | \r | |
1076 | \r | |
289f6a14 | 1077 | static FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERR */\r |
5630b930 L |
1078 | FATFS* fs, /* Filesystem object */\r |
1079 | LBA_t sect /* Sector LBA to make appearance in the fs->win[] */\r | |
53668523 L |
1080 | )\r |
1081 | {\r | |
7b78a5a2 L |
1082 | FRESULT res = FR_OK;\r |
1083 | \r | |
1084 | \r | |
5630b930 | 1085 | if (sect != fs->winsect) { /* Window offset changed? */\r |
289f6a14 | 1086 | #if !FF_FS_READONLY\r |
5630b930 | 1087 | res = sync_window(fs); /* Flush the window */\r |
53668523 | 1088 | #endif\r |
7b78a5a2 | 1089 | if (res == FR_OK) { /* Fill sector window with new data */\r |
5630b930 L |
1090 | if (disk_read(fs->pdrv, fs->win, sect, 1) != RES_OK) {\r |
1091 | sect = (LBA_t)0 - 1; /* Invalidate window if read data is not valid */\r | |
7b78a5a2 L |
1092 | res = FR_DISK_ERR;\r |
1093 | }\r | |
5630b930 | 1094 | fs->winsect = sect;\r |
7b78a5a2 | 1095 | }\r |
53668523 | 1096 | }\r |
7b78a5a2 | 1097 | return res;\r |
53668523 L |
1098 | }\r |
1099 | \r | |
1100 | \r | |
1101 | \r | |
1102 | \r | |
289f6a14 | 1103 | #if !FF_FS_READONLY\r |
53668523 | 1104 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 1105 | /* Synchronize filesystem and data on the storage */\r |
53668523 | 1106 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1107 | \r |
289f6a14 L |
1108 | static FRESULT sync_fs ( /* Returns FR_OK or FR_DISK_ERR */\r |
1109 | FATFS* fs /* Filesystem object */\r | |
53668523 L |
1110 | )\r |
1111 | {\r | |
1112 | FRESULT res;\r | |
1113 | \r | |
1114 | \r | |
1115 | res = sync_window(fs);\r | |
1116 | if (res == FR_OK) {\r | |
289f6a14 | 1117 | if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { /* FAT32: Update FSInfo sector if needed */\r |
70702af1 | 1118 | /* Create FSInfo structure */\r |
5630b930 L |
1119 | memset(fs->win, 0, sizeof fs->win);\r |
1120 | st_word(fs->win + BS_55AA, 0xAA55); /* Boot signature */\r | |
1121 | st_dword(fs->win + FSI_LeadSig, 0x41615252); /* Leading signature */\r | |
1122 | st_dword(fs->win + FSI_StrucSig, 0x61417272); /* Structure signature */\r | |
1123 | st_dword(fs->win + FSI_Free_Count, fs->free_clst); /* Number of free clusters */\r | |
1124 | st_dword(fs->win + FSI_Nxt_Free, fs->last_clst); /* Last allocated culuster */\r | |
1125 | fs->winsect = fs->volbase + 1; /* Write it into the FSInfo sector (Next to VBR) */\r | |
289f6a14 | 1126 | disk_write(fs->pdrv, fs->win, fs->winsect, 1);\r |
53668523 L |
1127 | fs->fsi_flag = 0;\r |
1128 | }\r | |
289f6a14 L |
1129 | /* Make sure that no pending write process in the lower layer */\r |
1130 | if (disk_ioctl(fs->pdrv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR;\r | |
53668523 L |
1131 | }\r |
1132 | \r | |
1133 | return res;\r | |
1134 | }\r | |
53668523 | 1135 | \r |
70702af1 | 1136 | #endif\r |
53668523 L |
1137 | \r |
1138 | \r | |
1139 | \r | |
1140 | /*-----------------------------------------------------------------------*/\r | |
289f6a14 | 1141 | /* Get physical sector number from cluster number */\r |
53668523 | 1142 | /*-----------------------------------------------------------------------*/\r |
53668523 | 1143 | \r |
5630b930 | 1144 | static LBA_t clst2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */\r |
289f6a14 | 1145 | FATFS* fs, /* Filesystem object */\r |
53668523 L |
1146 | DWORD clst /* Cluster# to be converted */\r |
1147 | )\r | |
1148 | {\r | |
289f6a14 L |
1149 | clst -= 2; /* Cluster number is origin from 2 */\r |
1150 | if (clst >= fs->n_fatent - 2) return 0; /* Is it invalid cluster number? */\r | |
5630b930 | 1151 | return fs->database + (LBA_t)fs->csize * clst; /* Start sector number of the cluster */\r |
53668523 L |
1152 | }\r |
1153 | \r | |
1154 | \r | |
1155 | \r | |
1156 | \r | |
1157 | /*-----------------------------------------------------------------------*/\r | |
5630b930 | 1158 | /* FAT access - Read value of an FAT entry */\r |
53668523 L |
1159 | /*-----------------------------------------------------------------------*/\r |
1160 | \r | |
289f6a14 L |
1161 | static DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */\r |
1162 | FFOBJID* obj, /* Corresponding object */\r | |
1163 | DWORD clst /* Cluster number to get the value */\r | |
53668523 L |
1164 | )\r |
1165 | {\r | |
1166 | UINT wc, bc;\r | |
7b78a5a2 | 1167 | DWORD val;\r |
70702af1 | 1168 | FATFS *fs = obj->fs;\r |
53668523 L |
1169 | \r |
1170 | \r | |
70702af1 | 1171 | if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */\r |
7b78a5a2 | 1172 | val = 1; /* Internal error */\r |
53668523 | 1173 | \r |
7b78a5a2 L |
1174 | } else {\r |
1175 | val = 0xFFFFFFFF; /* Default value falls on disk error */\r | |
53668523 | 1176 | \r |
7b78a5a2 L |
1177 | switch (fs->fs_type) {\r |
1178 | case FS_FAT12 :\r | |
1179 | bc = (UINT)clst; bc += bc / 2;\r | |
1180 | if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;\r | |
289f6a14 | 1181 | wc = fs->win[bc++ % SS(fs)]; /* Get 1st byte of the entry */\r |
7b78a5a2 | 1182 | if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;\r |
289f6a14 L |
1183 | wc |= fs->win[bc % SS(fs)] << 8; /* Merge 2nd byte of the entry */\r |
1184 | val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF); /* Adjust bit position */\r | |
7b78a5a2 L |
1185 | break;\r |
1186 | \r | |
1187 | case FS_FAT16 :\r | |
1188 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;\r | |
289f6a14 | 1189 | val = ld_word(fs->win + clst * 2 % SS(fs)); /* Simple WORD array */\r |
7b78a5a2 | 1190 | break;\r |
53668523 | 1191 | \r |
7b78a5a2 L |
1192 | case FS_FAT32 :\r |
1193 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;\r | |
289f6a14 | 1194 | val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; /* Simple DWORD array but mask out upper 4 bits */\r |
7b78a5a2 | 1195 | break;\r |
289f6a14 | 1196 | #if FF_FS_EXFAT\r |
70702af1 | 1197 | case FS_EXFAT :\r |
289f6a14 | 1198 | if ((obj->objsize != 0 && obj->sclust != 0) || obj->stat == 0) { /* Object except root dir must have valid data length */\r |
70702af1 | 1199 | DWORD cofs = clst - obj->sclust; /* Offset from start cluster */\r |
5630b930 | 1200 | DWORD clen = (DWORD)((LBA_t)((obj->objsize - 1) / SS(fs)) / fs->csize); /* Number of clusters - 1 */\r |
70702af1 | 1201 | \r |
289f6a14 L |
1202 | if (obj->stat == 2 && cofs <= clen) { /* Is it a contiguous chain? */\r |
1203 | val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* No data on the FAT, generate the value */\r | |
1204 | break;\r | |
70702af1 | 1205 | }\r |
289f6a14 | 1206 | if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */\r |
70702af1 L |
1207 | val = clst + 1; /* Generate the value */\r |
1208 | break;\r | |
1209 | }\r | |
1210 | if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */\r | |
289f6a14 L |
1211 | if (obj->n_frag != 0) { /* Is it on the growing edge? */\r |
1212 | val = 0x7FFFFFFF; /* Generate EOC */\r | |
1213 | } else {\r | |
1214 | if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;\r | |
1215 | val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF;\r | |
1216 | }\r | |
70702af1 L |
1217 | break;\r |
1218 | }\r | |
1219 | }\r | |
5630b930 L |
1220 | val = 1; /* Internal error */\r |
1221 | break;\r | |
70702af1 | 1222 | #endif\r |
7b78a5a2 L |
1223 | default:\r |
1224 | val = 1; /* Internal error */\r | |
1225 | }\r | |
53668523 L |
1226 | }\r |
1227 | \r | |
7b78a5a2 | 1228 | return val;\r |
53668523 L |
1229 | }\r |
1230 | \r | |
1231 | \r | |
1232 | \r | |
1233 | \r | |
289f6a14 | 1234 | #if !FF_FS_READONLY\r |
53668523 | 1235 | /*-----------------------------------------------------------------------*/\r |
5630b930 | 1236 | /* FAT access - Change value of an FAT entry */\r |
53668523 | 1237 | /*-----------------------------------------------------------------------*/\r |
53668523 | 1238 | \r |
289f6a14 L |
1239 | static FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */\r |
1240 | FATFS* fs, /* Corresponding filesystem object */\r | |
70702af1 L |
1241 | DWORD clst, /* FAT index number (cluster number) to be changed */\r |
1242 | DWORD val /* New value to be set to the entry */\r | |
53668523 L |
1243 | )\r |
1244 | {\r | |
1245 | UINT bc;\r | |
1246 | BYTE *p;\r | |
70702af1 | 1247 | FRESULT res = FR_INT_ERR;\r |
53668523 L |
1248 | \r |
1249 | \r | |
70702af1 | 1250 | if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */\r |
53668523 | 1251 | switch (fs->fs_type) {\r |
5630b930 | 1252 | case FS_FAT12:\r |
289f6a14 | 1253 | bc = (UINT)clst; bc += bc / 2; /* bc: byte offset of the entry */\r |
53668523 L |
1254 | res = move_window(fs, fs->fatbase + (bc / SS(fs)));\r |
1255 | if (res != FR_OK) break;\r | |
70702af1 | 1256 | p = fs->win + bc++ % SS(fs);\r |
5630b930 | 1257 | *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; /* Update 1st byte */\r |
53668523 L |
1258 | fs->wflag = 1;\r |
1259 | res = move_window(fs, fs->fatbase + (bc / SS(fs)));\r | |
1260 | if (res != FR_OK) break;\r | |
70702af1 | 1261 | p = fs->win + bc % SS(fs);\r |
5630b930 | 1262 | *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); /* Update 2nd byte */\r |
7b78a5a2 | 1263 | fs->wflag = 1;\r |
53668523 L |
1264 | break;\r |
1265 | \r | |
5630b930 | 1266 | case FS_FAT16:\r |
53668523 L |
1267 | res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));\r |
1268 | if (res != FR_OK) break;\r | |
289f6a14 | 1269 | st_word(fs->win + clst * 2 % SS(fs), (WORD)val); /* Simple WORD array */\r |
7b78a5a2 | 1270 | fs->wflag = 1;\r |
53668523 L |
1271 | break;\r |
1272 | \r | |
5630b930 | 1273 | case FS_FAT32:\r |
289f6a14 | 1274 | #if FF_FS_EXFAT\r |
5630b930 | 1275 | case FS_EXFAT:\r |
70702af1 | 1276 | #endif\r |
53668523 L |
1277 | res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));\r |
1278 | if (res != FR_OK) break;\r | |
289f6a14 | 1279 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {\r |
70702af1 L |
1280 | val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000);\r |
1281 | }\r | |
1282 | st_dword(fs->win + clst * 4 % SS(fs), val);\r | |
7b78a5a2 | 1283 | fs->wflag = 1;\r |
53668523 | 1284 | break;\r |
53668523 | 1285 | }\r |
53668523 | 1286 | }\r |
53668523 L |
1287 | return res;\r |
1288 | }\r | |
70702af1 | 1289 | \r |
289f6a14 | 1290 | #endif /* !FF_FS_READONLY */\r |
53668523 L |
1291 | \r |
1292 | \r | |
1293 | \r | |
1294 | \r | |
289f6a14 | 1295 | #if FF_FS_EXFAT && !FF_FS_READONLY\r |
53668523 | 1296 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1297 | /* exFAT: Accessing FAT and Allocation Bitmap */\r |
53668523 | 1298 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1299 | \r |
289f6a14 L |
1300 | /*--------------------------------------*/\r |
1301 | /* Find a contiguous free cluster block */\r | |
1302 | /*--------------------------------------*/\r | |
70702af1 | 1303 | \r |
289f6a14 L |
1304 | static DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */\r |
1305 | FATFS* fs, /* Filesystem object */\r | |
70702af1 L |
1306 | DWORD clst, /* Cluster number to scan from */\r |
1307 | DWORD ncl /* Number of contiguous clusters to find (1..) */\r | |
1308 | )\r | |
1309 | {\r | |
1310 | BYTE bm, bv;\r | |
1311 | UINT i;\r | |
1312 | DWORD val, scl, ctr;\r | |
1313 | \r | |
1314 | \r | |
1315 | clst -= 2; /* The first bit in the bitmap corresponds to cluster #2 */\r | |
1316 | if (clst >= fs->n_fatent - 2) clst = 0;\r | |
1317 | scl = val = clst; ctr = 0;\r | |
1318 | for (;;) {\r | |
5630b930 | 1319 | if (move_window(fs, fs->bitbase + val / 8 / SS(fs)) != FR_OK) return 0xFFFFFFFF;\r |
70702af1 L |
1320 | i = val / 8 % SS(fs); bm = 1 << (val % 8);\r |
1321 | do {\r | |
1322 | do {\r | |
1323 | bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */\r | |
1324 | if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */\r | |
289f6a14 | 1325 | val = 0; bm = 0; i = SS(fs);\r |
70702af1 | 1326 | }\r |
289f6a14 L |
1327 | if (bv == 0) { /* Is it a free cluster? */\r |
1328 | if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */\r | |
70702af1 | 1329 | } else {\r |
289f6a14 | 1330 | scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */\r |
70702af1 L |
1331 | }\r |
1332 | if (val == clst) return 0; /* All cluster scanned? */\r | |
289f6a14 | 1333 | } while (bm != 0);\r |
70702af1 L |
1334 | bm = 1;\r |
1335 | } while (++i < SS(fs));\r | |
1336 | }\r | |
1337 | }\r | |
1338 | \r | |
1339 | \r | |
289f6a14 L |
1340 | /*----------------------------------------*/\r |
1341 | /* Set/Clear a block of allocation bitmap */\r | |
1342 | /*----------------------------------------*/\r | |
70702af1 | 1343 | \r |
289f6a14 L |
1344 | static FRESULT change_bitmap (\r |
1345 | FATFS* fs, /* Filesystem object */\r | |
70702af1 L |
1346 | DWORD clst, /* Cluster number to change from */\r |
1347 | DWORD ncl, /* Number of clusters to be changed */\r | |
1348 | int bv /* bit value to be set (0 or 1) */\r | |
1349 | )\r | |
1350 | {\r | |
1351 | BYTE bm;\r | |
1352 | UINT i;\r | |
5630b930 | 1353 | LBA_t sect;\r |
70702af1 L |
1354 | \r |
1355 | \r | |
1356 | clst -= 2; /* The first bit corresponds to cluster #2 */\r | |
5630b930 L |
1357 | sect = fs->bitbase + clst / 8 / SS(fs); /* Sector address */\r |
1358 | i = clst / 8 % SS(fs); /* Byte offset in the sector */\r | |
1359 | bm = 1 << (clst % 8); /* Bit mask in the byte */\r | |
70702af1 L |
1360 | for (;;) {\r |
1361 | if (move_window(fs, sect++) != FR_OK) return FR_DISK_ERR;\r | |
1362 | do {\r | |
1363 | do {\r | |
1364 | if (bv == (int)((fs->win[i] & bm) != 0)) return FR_INT_ERR; /* Is the bit expected value? */\r | |
1365 | fs->win[i] ^= bm; /* Flip the bit */\r | |
1366 | fs->wflag = 1;\r | |
1367 | if (--ncl == 0) return FR_OK; /* All bits processed? */\r | |
1368 | } while (bm <<= 1); /* Next bit */\r | |
1369 | bm = 1;\r | |
1370 | } while (++i < SS(fs)); /* Next byte */\r | |
1371 | i = 0;\r | |
1372 | }\r | |
1373 | }\r | |
1374 | \r | |
1375 | \r | |
1376 | /*---------------------------------------------*/\r | |
289f6a14 | 1377 | /* Fill the first fragment of the FAT chain */\r |
70702af1 L |
1378 | /*---------------------------------------------*/\r |
1379 | \r | |
289f6a14 L |
1380 | static FRESULT fill_first_frag (\r |
1381 | FFOBJID* obj /* Pointer to the corresponding object */\r | |
53668523 L |
1382 | )\r |
1383 | {\r | |
1384 | FRESULT res;\r | |
70702af1 L |
1385 | DWORD cl, n;\r |
1386 | \r | |
289f6a14 L |
1387 | \r |
1388 | if (obj->stat == 3) { /* Has the object been changed 'fragmented' in this session? */\r | |
70702af1 L |
1389 | for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */\r |
1390 | res = put_fat(obj->fs, cl, cl + 1);\r | |
1391 | if (res != FR_OK) return res;\r | |
1392 | }\r | |
1393 | obj->stat = 0; /* Change status 'FAT chain is valid' */\r | |
1394 | }\r | |
1395 | return FR_OK;\r | |
1396 | }\r | |
1397 | \r | |
70702af1 | 1398 | \r |
289f6a14 L |
1399 | /*---------------------------------------------*/\r |
1400 | /* Fill the last fragment of the FAT chain */\r | |
1401 | /*---------------------------------------------*/\r | |
1402 | \r | |
1403 | static FRESULT fill_last_frag (\r | |
1404 | FFOBJID* obj, /* Pointer to the corresponding object */\r | |
1405 | DWORD lcl, /* Last cluster of the fragment */\r | |
1406 | DWORD term /* Value to set the last FAT entry */\r | |
1407 | )\r | |
1408 | {\r | |
1409 | FRESULT res;\r | |
1410 | \r | |
1411 | \r | |
1412 | while (obj->n_frag > 0) { /* Create the chain of last fragment */\r | |
1413 | res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term);\r | |
1414 | if (res != FR_OK) return res;\r | |
1415 | obj->n_frag--;\r | |
1416 | }\r | |
1417 | return FR_OK;\r | |
1418 | }\r | |
70702af1 | 1419 | \r |
289f6a14 | 1420 | #endif /* FF_FS_EXFAT && !FF_FS_READONLY */\r |
70702af1 | 1421 | \r |
289f6a14 L |
1422 | \r |
1423 | \r | |
1424 | #if !FF_FS_READONLY\r | |
70702af1 L |
1425 | /*-----------------------------------------------------------------------*/\r |
1426 | /* FAT handling - Remove a cluster chain */\r | |
1427 | /*-----------------------------------------------------------------------*/\r | |
289f6a14 L |
1428 | \r |
1429 | static FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */\r | |
1430 | FFOBJID* obj, /* Corresponding object */\r | |
70702af1 | 1431 | DWORD clst, /* Cluster to remove a chain from */\r |
5630b930 | 1432 | DWORD pclst /* Previous cluster of clst (0 if entire chain) */\r |
70702af1 L |
1433 | )\r |
1434 | {\r | |
1435 | FRESULT res = FR_OK;\r | |
53668523 | 1436 | DWORD nxt;\r |
70702af1 | 1437 | FATFS *fs = obj->fs;\r |
289f6a14 | 1438 | #if FF_FS_EXFAT || FF_USE_TRIM\r |
70702af1 L |
1439 | DWORD scl = clst, ecl = clst;\r |
1440 | #endif\r | |
289f6a14 | 1441 | #if FF_USE_TRIM\r |
5630b930 | 1442 | LBA_t rt[2];\r |
53668523 L |
1443 | #endif\r |
1444 | \r | |
70702af1 | 1445 | if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */\r |
53668523 | 1446 | \r |
70702af1 | 1447 | /* Mark the previous cluster 'EOC' on the FAT if it exists */\r |
289f6a14 | 1448 | if (pclst != 0 && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) {\r |
70702af1 L |
1449 | res = put_fat(fs, pclst, 0xFFFFFFFF);\r |
1450 | if (res != FR_OK) return res;\r | |
1451 | }\r | |
1452 | \r | |
1453 | /* Remove the chain */\r | |
1454 | do {\r | |
1455 | nxt = get_fat(obj, clst); /* Get cluster status */\r | |
1456 | if (nxt == 0) break; /* Empty cluster? */\r | |
1457 | if (nxt == 1) return FR_INT_ERR; /* Internal error? */\r | |
1458 | if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */\r | |
289f6a14 | 1459 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {\r |
70702af1 L |
1460 | res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */\r |
1461 | if (res != FR_OK) return res;\r | |
1462 | }\r | |
1463 | if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */\r | |
1464 | fs->free_clst++;\r | |
1465 | fs->fsi_flag |= 1;\r | |
1466 | }\r | |
289f6a14 | 1467 | #if FF_FS_EXFAT || FF_USE_TRIM\r |
70702af1 L |
1468 | if (ecl + 1 == nxt) { /* Is next cluster contiguous? */\r |
1469 | ecl = nxt;\r | |
289f6a14 L |
1470 | } else { /* End of contiguous cluster block */\r |
1471 | #if FF_FS_EXFAT\r | |
70702af1 L |
1472 | if (fs->fs_type == FS_EXFAT) {\r |
1473 | res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */\r | |
1474 | if (res != FR_OK) return res;\r | |
53668523 | 1475 | }\r |
70702af1 | 1476 | #endif\r |
289f6a14 | 1477 | #if FF_USE_TRIM\r |
5630b930 L |
1478 | rt[0] = clst2sect(fs, scl); /* Start of data area to be freed */\r |
1479 | rt[1] = clst2sect(fs, ecl) + fs->csize - 1; /* End of data area to be freed */\r | |
1480 | disk_ioctl(fs->pdrv, CTRL_TRIM, rt); /* Inform storage device that the data in the block may be erased */\r | |
53668523 | 1481 | #endif\r |
70702af1 | 1482 | scl = ecl = nxt;\r |
53668523 | 1483 | }\r |
70702af1 L |
1484 | #endif\r |
1485 | clst = nxt; /* Next cluster */\r | |
1486 | } while (clst < fs->n_fatent); /* Repeat while not the last link */\r | |
53668523 | 1487 | \r |
289f6a14 L |
1488 | #if FF_FS_EXFAT\r |
1489 | /* Some post processes for chain status */\r | |
70702af1 | 1490 | if (fs->fs_type == FS_EXFAT) {\r |
289f6a14 L |
1491 | if (pclst == 0) { /* Has the entire chain been removed? */\r |
1492 | obj->stat = 0; /* Change the chain status 'initial' */\r | |
70702af1 | 1493 | } else {\r |
289f6a14 L |
1494 | if (obj->stat == 0) { /* Is it a fragmented chain from the beginning of this session? */\r |
1495 | clst = obj->sclust; /* Follow the chain to check if it gets contiguous */\r | |
1496 | while (clst != pclst) {\r | |
1497 | nxt = get_fat(obj, clst);\r | |
1498 | if (nxt < 2) return FR_INT_ERR;\r | |
1499 | if (nxt == 0xFFFFFFFF) return FR_DISK_ERR;\r | |
1500 | if (nxt != clst + 1) break; /* Not contiguous? */\r | |
1501 | clst++;\r | |
1502 | }\r | |
1503 | if (clst == pclst) { /* Has the chain got contiguous again? */\r | |
1504 | obj->stat = 2; /* Change the chain status 'contiguous' */\r | |
1505 | }\r | |
1506 | } else {\r | |
1507 | 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 | |
1508 | obj->stat = 2; /* Change the chain status 'contiguous' */\r | |
1509 | }\r | |
70702af1 L |
1510 | }\r |
1511 | }\r | |
1512 | }\r | |
53668523 | 1513 | #endif\r |
70702af1 L |
1514 | return FR_OK;\r |
1515 | }\r | |
53668523 L |
1516 | \r |
1517 | \r | |
1518 | \r | |
1519 | \r | |
1520 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 1521 | /* FAT handling - Stretch a chain or Create a new chain */\r |
53668523 | 1522 | /*-----------------------------------------------------------------------*/\r |
289f6a14 L |
1523 | \r |
1524 | static DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */\r | |
1525 | FFOBJID* obj, /* Corresponding object */\r | |
70702af1 | 1526 | DWORD clst /* Cluster# to stretch, 0:Create a new chain */\r |
53668523 L |
1527 | )\r |
1528 | {\r | |
1529 | DWORD cs, ncl, scl;\r | |
1530 | FRESULT res;\r | |
70702af1 | 1531 | FATFS *fs = obj->fs;\r |
53668523 L |
1532 | \r |
1533 | \r | |
70702af1 | 1534 | if (clst == 0) { /* Create a new chain */\r |
289f6a14 | 1535 | scl = fs->last_clst; /* Suggested cluster to start to find */\r |
70702af1 | 1536 | if (scl == 0 || scl >= fs->n_fatent) scl = 1;\r |
53668523 | 1537 | }\r |
289f6a14 | 1538 | else { /* Stretch a chain */\r |
70702af1 | 1539 | cs = get_fat(obj, clst); /* Check the cluster status */\r |
289f6a14 L |
1540 | if (cs < 2) return 1; /* Test for insanity */\r |
1541 | if (cs == 0xFFFFFFFF) return cs; /* Test for disk error */\r | |
53668523 | 1542 | if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */\r |
289f6a14 | 1543 | scl = clst; /* Cluster to start to find */\r |
53668523 | 1544 | }\r |
289f6a14 | 1545 | if (fs->free_clst == 0) return 0; /* No free cluster */\r |
53668523 | 1546 | \r |
289f6a14 | 1547 | #if FF_FS_EXFAT\r |
70702af1 L |
1548 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
1549 | ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */\r | |
1550 | if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */\r | |
1551 | res = change_bitmap(fs, ncl, 1, 1); /* Mark the cluster 'in use' */\r | |
1552 | if (res == FR_INT_ERR) return 1;\r | |
1553 | if (res == FR_DISK_ERR) return 0xFFFFFFFF;\r | |
1554 | if (clst == 0) { /* Is it a new chain? */\r | |
289f6a14 L |
1555 | obj->stat = 2; /* Set status 'contiguous' */\r |
1556 | } else { /* It is a stretched chain */\r | |
70702af1 L |
1557 | if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */\r |
1558 | obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */\r | |
1559 | obj->stat = 3; /* Change status 'just fragmented' */\r | |
1560 | }\r | |
1561 | }\r | |
289f6a14 L |
1562 | if (obj->stat != 2) { /* Is the file non-contiguous? */\r |
1563 | if (ncl == clst + 1) { /* Is the cluster next to previous one? */\r | |
1564 | obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */\r | |
1565 | } else { /* New fragment */\r | |
1566 | if (obj->n_frag == 0) obj->n_frag = 1;\r | |
1567 | res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */\r | |
1568 | if (res == FR_OK) obj->n_frag = 1;\r | |
1569 | }\r | |
1570 | }\r | |
70702af1 L |
1571 | } else\r |
1572 | #endif\r | |
289f6a14 L |
1573 | { /* On the FAT/FAT32 volume */\r |
1574 | ncl = 0;\r | |
1575 | if (scl == clst) { /* Stretching an existing chain? */\r | |
1576 | ncl = scl + 1; /* Test if next cluster is free */\r | |
1577 | if (ncl >= fs->n_fatent) ncl = 2;\r | |
1578 | cs = get_fat(obj, ncl); /* Get next cluster status */\r | |
1579 | if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */\r | |
1580 | if (cs != 0) { /* Not free? */\r | |
1581 | cs = fs->last_clst; /* Start at suggested cluster if it is valid */\r | |
1582 | if (cs >= 2 && cs < fs->n_fatent) scl = cs;\r | |
1583 | ncl = 0;\r | |
70702af1 | 1584 | }\r |
53668523 | 1585 | }\r |
289f6a14 L |
1586 | if (ncl == 0) { /* The new cluster cannot be contiguous and find another fragment */\r |
1587 | ncl = scl; /* Start cluster */\r | |
1588 | for (;;) {\r | |
1589 | ncl++; /* Next cluster */\r | |
1590 | if (ncl >= fs->n_fatent) { /* Check wrap-around */\r | |
1591 | ncl = 2;\r | |
1592 | if (ncl > scl) return 0; /* No free cluster found? */\r | |
1593 | }\r | |
1594 | cs = get_fat(obj, ncl); /* Get the cluster status */\r | |
1595 | if (cs == 0) break; /* Found a free cluster? */\r | |
1596 | if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */\r | |
1597 | if (ncl == scl) return 0; /* No free cluster found? */\r | |
1598 | }\r | |
1599 | }\r | |
1600 | res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */\r | |
1601 | if (res == FR_OK && clst != 0) {\r | |
1602 | res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */\r | |
53668523 | 1603 | }\r |
70702af1 L |
1604 | }\r |
1605 | \r | |
1606 | if (res == FR_OK) { /* Update FSINFO if function succeeded. */\r | |
1607 | fs->last_clst = ncl;\r | |
289f6a14 | 1608 | if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--;\r |
70702af1 | 1609 | fs->fsi_flag |= 1;\r |
53668523 | 1610 | } else {\r |
289f6a14 | 1611 | ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */\r |
53668523 L |
1612 | }\r |
1613 | \r | |
70702af1 | 1614 | return ncl; /* Return new cluster number or error status */\r |
53668523 | 1615 | }\r |
70702af1 | 1616 | \r |
289f6a14 | 1617 | #endif /* !FF_FS_READONLY */\r |
53668523 L |
1618 | \r |
1619 | \r | |
1620 | \r | |
1621 | \r | |
289f6a14 | 1622 | #if FF_USE_FASTSEEK\r |
53668523 L |
1623 | /*-----------------------------------------------------------------------*/\r |
1624 | /* FAT handling - Convert offset into cluster with link map table */\r | |
1625 | /*-----------------------------------------------------------------------*/\r | |
1626 | \r | |
289f6a14 | 1627 | static DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */\r |
53668523 | 1628 | FIL* fp, /* Pointer to the file object */\r |
70702af1 | 1629 | FSIZE_t ofs /* File offset to be converted to cluster# */\r |
53668523 L |
1630 | )\r |
1631 | {\r | |
5630b930 L |
1632 | DWORD cl, ncl;\r |
1633 | DWORD *tbl;\r | |
70702af1 | 1634 | FATFS *fs = fp->obj.fs;\r |
53668523 L |
1635 | \r |
1636 | \r | |
1637 | tbl = fp->cltbl + 1; /* Top of CLMT */\r | |
70702af1 | 1638 | cl = (DWORD)(ofs / SS(fs) / fs->csize); /* Cluster order from top of the file */\r |
53668523 L |
1639 | for (;;) {\r |
1640 | ncl = *tbl++; /* Number of cluters in the fragment */\r | |
70702af1 | 1641 | if (ncl == 0) return 0; /* End of table? (error) */\r |
53668523 L |
1642 | if (cl < ncl) break; /* In this fragment? */\r |
1643 | cl -= ncl; tbl++; /* Next fragment */\r | |
1644 | }\r | |
1645 | return cl + *tbl; /* Return the cluster number */\r | |
1646 | }\r | |
70702af1 | 1647 | \r |
289f6a14 L |
1648 | #endif /* FF_USE_FASTSEEK */\r |
1649 | \r | |
1650 | \r | |
1651 | \r | |
1652 | \r | |
1653 | /*-----------------------------------------------------------------------*/\r | |
1654 | /* Directory handling - Fill a cluster with zeros */\r | |
1655 | /*-----------------------------------------------------------------------*/\r | |
1656 | \r | |
1657 | #if !FF_FS_READONLY\r | |
1658 | static FRESULT dir_clear ( /* Returns FR_OK or FR_DISK_ERR */\r | |
1659 | FATFS *fs, /* Filesystem object */\r | |
1660 | DWORD clst /* Directory table to clear */\r | |
1661 | )\r | |
1662 | {\r | |
5630b930 | 1663 | LBA_t sect;\r |
289f6a14 L |
1664 | UINT n, szb;\r |
1665 | BYTE *ibuf;\r | |
1666 | \r | |
1667 | \r | |
1668 | if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */\r | |
1669 | sect = clst2sect(fs, clst); /* Top of the cluster */\r | |
1670 | fs->winsect = sect; /* Set window to top of the cluster */\r | |
5630b930 | 1671 | memset(fs->win, 0, sizeof fs->win); /* Clear window buffer */\r |
289f6a14 L |
1672 | #if FF_USE_LFN == 3 /* Quick table clear by using multi-secter write */\r |
1673 | /* Allocate a temporary buffer */\r | |
1674 | 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 | |
1675 | if (szb > SS(fs)) { /* Buffer allocated? */\r | |
5630b930 | 1676 | memset(ibuf, 0, szb);\r |
289f6a14 L |
1677 | szb /= SS(fs); /* Bytes -> Sectors */\r |
1678 | for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */\r | |
1679 | ff_memfree(ibuf);\r | |
1680 | } else\r | |
1681 | #endif\r | |
1682 | {\r | |
1683 | ibuf = fs->win; szb = 1; /* Use window buffer (many single-sector writes may take a time) */\r | |
1684 | for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */\r | |
1685 | }\r | |
1686 | return (n == fs->csize) ? FR_OK : FR_DISK_ERR;\r | |
1687 | }\r | |
1688 | #endif /* !FF_FS_READONLY */\r | |
53668523 L |
1689 | \r |
1690 | \r | |
1691 | \r | |
1692 | \r | |
1693 | /*-----------------------------------------------------------------------*/\r | |
1694 | /* Directory handling - Set directory index */\r | |
1695 | /*-----------------------------------------------------------------------*/\r | |
1696 | \r | |
289f6a14 | 1697 | static FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */\r |
53668523 | 1698 | DIR* dp, /* Pointer to directory object */\r |
70702af1 | 1699 | DWORD ofs /* Offset of directory table */\r |
53668523 L |
1700 | )\r |
1701 | {\r | |
70702af1 L |
1702 | DWORD csz, clst;\r |
1703 | FATFS *fs = dp->obj.fs;\r | |
53668523 L |
1704 | \r |
1705 | \r | |
289f6a14 | 1706 | 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 |
53668523 | 1707 | return FR_INT_ERR;\r |
70702af1 L |
1708 | }\r |
1709 | dp->dptr = ofs; /* Set current offset */\r | |
1710 | clst = dp->obj.sclust; /* Table start cluster (0:root) */\r | |
1711 | if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */\r | |
5630b930 | 1712 | clst = (DWORD)fs->dirbase;\r |
289f6a14 | 1713 | if (FF_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */\r |
70702af1 | 1714 | }\r |
53668523 | 1715 | \r |
289f6a14 L |
1716 | if (clst == 0) { /* Static table (root-directory on the FAT volume) */\r |
1717 | if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */\r | |
70702af1 L |
1718 | dp->sect = fs->dirbase;\r |
1719 | \r | |
289f6a14 | 1720 | } else { /* Dynamic table (sub-directory or root-directory on the FAT32/exFAT volume) */\r |
70702af1 L |
1721 | csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */\r |
1722 | while (ofs >= csz) { /* Follow cluster chain */\r | |
1723 | clst = get_fat(&dp->obj, clst); /* Get next cluster */\r | |
53668523 | 1724 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r |
70702af1 L |
1725 | if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */\r |
1726 | ofs -= csz;\r | |
53668523 | 1727 | }\r |
289f6a14 | 1728 | dp->sect = clst2sect(fs, clst);\r |
53668523 | 1729 | }\r |
70702af1 | 1730 | dp->clust = clst; /* Current cluster# */\r |
289f6a14 | 1731 | if (dp->sect == 0) return FR_INT_ERR;\r |
70702af1 L |
1732 | dp->sect += ofs / SS(fs); /* Sector# of the directory entry */\r |
1733 | dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */\r | |
53668523 L |
1734 | \r |
1735 | return FR_OK;\r | |
1736 | }\r | |
1737 | \r | |
1738 | \r | |
1739 | \r | |
1740 | \r | |
1741 | /*-----------------------------------------------------------------------*/\r | |
1742 | /* Directory handling - Move directory table index next */\r | |
1743 | /*-----------------------------------------------------------------------*/\r | |
1744 | \r | |
289f6a14 L |
1745 | static FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */\r |
1746 | DIR* dp, /* Pointer to the directory object */\r | |
1747 | int stretch /* 0: Do not stretch table, 1: Stretch table if needed */\r | |
53668523 L |
1748 | )\r |
1749 | {\r | |
70702af1 L |
1750 | DWORD ofs, clst;\r |
1751 | FATFS *fs = dp->obj.fs;\r | |
289f6a14 | 1752 | \r |
53668523 | 1753 | \r |
70702af1 | 1754 | ofs = dp->dptr + SZDIRE; /* Next entry */\r |
dbd0d34e L |
1755 | 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 |
1756 | if (dp->sect == 0) return FR_NO_FILE; /* Report EOT if it has been disabled */\r | |
53668523 | 1757 | \r |
70702af1 L |
1758 | if (ofs % SS(fs) == 0) { /* Sector changed? */\r |
1759 | dp->sect++; /* Next sector */\r | |
53668523 | 1760 | \r |
289f6a14 | 1761 | if (dp->clust == 0) { /* Static table */\r |
70702af1 L |
1762 | if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */\r |
1763 | dp->sect = 0; return FR_NO_FILE;\r | |
1764 | }\r | |
53668523 L |
1765 | }\r |
1766 | else { /* Dynamic table */\r | |
289f6a14 L |
1767 | if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */\r |
1768 | clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */\r | |
1769 | if (clst <= 1) return FR_INT_ERR; /* Internal error */\r | |
1770 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r | |
1771 | if (clst >= fs->n_fatent) { /* It reached end of dynamic table */\r | |
1772 | #if !FF_FS_READONLY\r | |
70702af1 L |
1773 | if (!stretch) { /* If no stretch, report EOT */\r |
1774 | dp->sect = 0; return FR_NO_FILE;\r | |
1775 | }\r | |
1776 | clst = create_chain(&dp->obj, dp->clust); /* Allocate a cluster */\r | |
53668523 | 1777 | if (clst == 0) return FR_DENIED; /* No free cluster */\r |
70702af1 L |
1778 | if (clst == 1) return FR_INT_ERR; /* Internal error */\r |
1779 | if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */\r | |
289f6a14 L |
1780 | if (dir_clear(fs, clst) != FR_OK) return FR_DISK_ERR; /* Clean up the stretched table */\r |
1781 | if (FF_FS_EXFAT) dp->obj.stat |= 4; /* exFAT: The directory has been stretched */\r | |
53668523 | 1782 | #else\r |
289f6a14 | 1783 | if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */\r |
70702af1 | 1784 | dp->sect = 0; return FR_NO_FILE; /* Report EOT */\r |
53668523 L |
1785 | #endif\r |
1786 | }\r | |
70702af1 | 1787 | dp->clust = clst; /* Initialize data for new cluster */\r |
289f6a14 | 1788 | dp->sect = clst2sect(fs, clst);\r |
53668523 L |
1789 | }\r |
1790 | }\r | |
1791 | }\r | |
70702af1 L |
1792 | dp->dptr = ofs; /* Current entry */\r |
1793 | dp->dir = fs->win + ofs % SS(fs); /* Pointer to the entry in the win[] */\r | |
53668523 L |
1794 | \r |
1795 | return FR_OK;\r | |
1796 | }\r | |
1797 | \r | |
1798 | \r | |
1799 | \r | |
1800 | \r | |
289f6a14 | 1801 | #if !FF_FS_READONLY\r |
53668523 | 1802 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1803 | /* Directory handling - Reserve a block of directory entries */\r |
53668523 L |
1804 | /*-----------------------------------------------------------------------*/\r |
1805 | \r | |
289f6a14 L |
1806 | static FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */\r |
1807 | DIR* dp, /* Pointer to the directory object */\r | |
5630b930 | 1808 | UINT n_ent /* Number of contiguous entries to allocate */\r |
53668523 L |
1809 | )\r |
1810 | {\r | |
1811 | FRESULT res;\r | |
1812 | UINT n;\r | |
70702af1 | 1813 | FATFS *fs = dp->obj.fs;\r |
53668523 L |
1814 | \r |
1815 | \r | |
1816 | res = dir_sdi(dp, 0);\r | |
1817 | if (res == FR_OK) {\r | |
1818 | n = 0;\r | |
1819 | do {\r | |
70702af1 | 1820 | res = move_window(fs, dp->sect);\r |
53668523 | 1821 | if (res != FR_OK) break;\r |
289f6a14 | 1822 | #if FF_FS_EXFAT\r |
5630b930 | 1823 | if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) { /* Is the entry free? */\r |
70702af1 | 1824 | #else\r |
5630b930 | 1825 | if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) { /* Is the entry free? */\r |
70702af1 | 1826 | #endif\r |
5630b930 | 1827 | if (++n == n_ent) break; /* Is a block of contiguous free entries found? */\r |
53668523 | 1828 | } else {\r |
5630b930 | 1829 | n = 0; /* Not a free entry, restart to search */\r |
53668523 | 1830 | }\r |
5630b930 L |
1831 | res = dir_next(dp, 1); /* Next entry with table stretch enabled */\r |
1832 | } while (res == FR_OK);\r | |
53668523 | 1833 | }\r |
70702af1 | 1834 | \r |
53668523 L |
1835 | if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */\r |
1836 | return res;\r | |
1837 | }\r | |
70702af1 | 1838 | \r |
289f6a14 | 1839 | #endif /* !FF_FS_READONLY */\r |
53668523 L |
1840 | \r |
1841 | \r | |
1842 | \r | |
1843 | \r | |
1844 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 1845 | /* FAT: Directory handling - Load/Store start cluster number */\r |
53668523 L |
1846 | /*-----------------------------------------------------------------------*/\r |
1847 | \r | |
289f6a14 L |
1848 | static DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */\r |
1849 | FATFS* fs, /* Pointer to the fs object */\r | |
1850 | const BYTE* dir /* Pointer to the key entry */\r | |
53668523 L |
1851 | )\r |
1852 | {\r | |
1853 | DWORD cl;\r | |
1854 | \r | |
70702af1 L |
1855 | cl = ld_word(dir + DIR_FstClusLO);\r |
1856 | if (fs->fs_type == FS_FAT32) {\r | |
1857 | cl |= (DWORD)ld_word(dir + DIR_FstClusHI) << 16;\r | |
1858 | }\r | |
53668523 L |
1859 | \r |
1860 | return cl;\r | |
1861 | }\r | |
1862 | \r | |
1863 | \r | |
289f6a14 L |
1864 | #if !FF_FS_READONLY\r |
1865 | static void st_clust (\r | |
70702af1 L |
1866 | FATFS* fs, /* Pointer to the fs object */\r |
1867 | BYTE* dir, /* Pointer to the key entry */\r | |
53668523 L |
1868 | DWORD cl /* Value to be set */\r |
1869 | )\r | |
1870 | {\r | |
70702af1 L |
1871 | st_word(dir + DIR_FstClusLO, (WORD)cl);\r |
1872 | if (fs->fs_type == FS_FAT32) {\r | |
1873 | st_word(dir + DIR_FstClusHI, (WORD)(cl >> 16));\r | |
1874 | }\r | |
53668523 L |
1875 | }\r |
1876 | #endif\r | |
1877 | \r | |
1878 | \r | |
1879 | \r | |
289f6a14 | 1880 | #if FF_USE_LFN\r |
70702af1 L |
1881 | /*--------------------------------------------------------*/\r |
1882 | /* FAT-LFN: Compare a part of file name with an LFN entry */\r | |
1883 | /*--------------------------------------------------------*/\r | |
289f6a14 L |
1884 | \r |
1885 | static int cmp_lfn ( /* 1:matched, 0:not matched */\r | |
70702af1 L |
1886 | const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */\r |
1887 | BYTE* dir /* Pointer to the directory entry containing the part of LFN */\r | |
53668523 L |
1888 | )\r |
1889 | {\r | |
1890 | UINT i, s;\r | |
1891 | WCHAR wc, uc;\r | |
1892 | \r | |
1893 | \r | |
70702af1 L |
1894 | if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */\r |
1895 | \r | |
1896 | i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */\r | |
1897 | \r | |
1898 | for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */\r | |
1899 | uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */\r | |
289f6a14 | 1900 | if (wc != 0) {\r |
5630b930 | 1901 | if (i >= FF_MAX_LFN + 1 || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */\r |
70702af1 L |
1902 | return 0; /* Not matched */\r |
1903 | }\r | |
1904 | wc = uc;\r | |
53668523 | 1905 | } else {\r |
70702af1 | 1906 | if (uc != 0xFFFF) return 0; /* Check filler */\r |
53668523 | 1907 | }\r |
70702af1 | 1908 | }\r |
53668523 | 1909 | \r |
70702af1 | 1910 | if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) return 0; /* Last segment matched but different length */\r |
53668523 | 1911 | \r |
70702af1 | 1912 | return 1; /* The part of LFN matched */\r |
53668523 L |
1913 | }\r |
1914 | \r | |
1915 | \r | |
289f6a14 | 1916 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT\r |
70702af1 L |
1917 | /*-----------------------------------------------------*/\r |
1918 | /* FAT-LFN: Pick a part of file name from an LFN entry */\r | |
1919 | /*-----------------------------------------------------*/\r | |
289f6a14 L |
1920 | \r |
1921 | static int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */\r | |
70702af1 L |
1922 | WCHAR* lfnbuf, /* Pointer to the LFN working buffer */\r |
1923 | BYTE* dir /* Pointer to the LFN entry */\r | |
53668523 L |
1924 | )\r |
1925 | {\r | |
1926 | UINT i, s;\r | |
1927 | WCHAR wc, uc;\r | |
1928 | \r | |
1929 | \r | |
289f6a14 | 1930 | if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */\r |
70702af1 | 1931 | \r |
289f6a14 | 1932 | i = ((dir[LDIR_Ord] & ~LLEF) - 1) * 13; /* Offset in the LFN buffer */\r |
53668523 | 1933 | \r |
70702af1 L |
1934 | for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */\r |
1935 | uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */\r | |
289f6a14 | 1936 | if (wc != 0) {\r |
5630b930 | 1937 | if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */\r |
53668523 L |
1938 | lfnbuf[i++] = wc = uc; /* Store it */\r |
1939 | } else {\r | |
1940 | if (uc != 0xFFFF) return 0; /* Check filler */\r | |
1941 | }\r | |
70702af1 | 1942 | }\r |
53668523 | 1943 | \r |
5630b930 L |
1944 | if (dir[LDIR_Ord] & LLEF && wc != 0) { /* Put terminator if it is the last LFN part and not terminated */\r |
1945 | if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */\r | |
53668523 L |
1946 | lfnbuf[i] = 0;\r |
1947 | }\r | |
1948 | \r | |
70702af1 | 1949 | return 1; /* The part of LFN is valid */\r |
53668523 | 1950 | }\r |
70702af1 | 1951 | #endif\r |
53668523 L |
1952 | \r |
1953 | \r | |
289f6a14 | 1954 | #if !FF_FS_READONLY\r |
70702af1 L |
1955 | /*-----------------------------------------*/\r |
1956 | /* FAT-LFN: Create an entry of LFN entries */\r | |
1957 | /*-----------------------------------------*/\r | |
289f6a14 L |
1958 | \r |
1959 | static void put_lfn (\r | |
70702af1 L |
1960 | const WCHAR* lfn, /* Pointer to the LFN */\r |
1961 | BYTE* dir, /* Pointer to the LFN entry to be created */\r | |
1962 | BYTE ord, /* LFN order (1-20) */\r | |
1963 | BYTE sum /* Checksum of the corresponding SFN */\r | |
53668523 L |
1964 | )\r |
1965 | {\r | |
1966 | UINT i, s;\r | |
1967 | WCHAR wc;\r | |
1968 | \r | |
1969 | \r | |
70702af1 | 1970 | dir[LDIR_Chksum] = sum; /* Set checksum */\r |
53668523 L |
1971 | dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */\r |
1972 | dir[LDIR_Type] = 0;\r | |
70702af1 | 1973 | st_word(dir + LDIR_FstClusLO, 0);\r |
53668523 | 1974 | \r |
70702af1 | 1975 | i = (ord - 1) * 13; /* Get offset in the LFN working buffer */\r |
53668523 L |
1976 | s = wc = 0;\r |
1977 | do {\r | |
70702af1 L |
1978 | if (wc != 0xFFFF) wc = lfn[i++]; /* Get an effective character */\r |
1979 | st_word(dir + LfnOfs[s], wc); /* Put it */\r | |
5630b930 | 1980 | if (wc == 0) wc = 0xFFFF; /* Padding characters for following items */\r |
53668523 | 1981 | } while (++s < 13);\r |
70702af1 | 1982 | if (wc == 0xFFFF || !lfn[i]) ord |= LLEF; /* Last LFN part is the start of LFN sequence */\r |
53668523 L |
1983 | dir[LDIR_Ord] = ord; /* Set the LFN order */\r |
1984 | }\r | |
1985 | \r | |
289f6a14 L |
1986 | #endif /* !FF_FS_READONLY */\r |
1987 | #endif /* FF_USE_LFN */\r | |
53668523 L |
1988 | \r |
1989 | \r | |
1990 | \r | |
289f6a14 | 1991 | #if FF_USE_LFN && !FF_FS_READONLY\r |
53668523 | 1992 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1993 | /* FAT-LFN: Create a Numbered SFN */\r |
53668523 | 1994 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 1995 | \r |
289f6a14 | 1996 | static void gen_numname (\r |
53668523 | 1997 | BYTE* dst, /* Pointer to the buffer to store numbered SFN */\r |
5630b930 | 1998 | const BYTE* src, /* Pointer to SFN in directory form */\r |
53668523 L |
1999 | const WCHAR* lfn, /* Pointer to LFN */\r |
2000 | UINT seq /* Sequence number */\r | |
2001 | )\r | |
2002 | {\r | |
2003 | BYTE ns[8], c;\r | |
2004 | UINT i, j;\r | |
70702af1 | 2005 | WCHAR wc;\r |
5630b930 | 2006 | DWORD sreg;\r |
53668523 L |
2007 | \r |
2008 | \r | |
5630b930 | 2009 | memcpy(dst, src, 11); /* Prepare the SFN to be modified */\r |
53668523 | 2010 | \r |
70702af1 | 2011 | if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */\r |
5630b930 | 2012 | sreg = seq;\r |
289f6a14 | 2013 | while (*lfn) { /* Create a CRC as hash value */\r |
53668523 L |
2014 | wc = *lfn++;\r |
2015 | for (i = 0; i < 16; i++) {\r | |
5630b930 | 2016 | sreg = (sreg << 1) + (wc & 1);\r |
53668523 | 2017 | wc >>= 1;\r |
5630b930 | 2018 | if (sreg & 0x10000) sreg ^= 0x11021;\r |
53668523 L |
2019 | }\r |
2020 | }\r | |
5630b930 | 2021 | seq = (UINT)sreg;\r |
53668523 L |
2022 | }\r |
2023 | \r | |
5630b930 | 2024 | /* Make suffix (~ + hexadecimal) */\r |
53668523 L |
2025 | i = 7;\r |
2026 | do {\r | |
5630b930 | 2027 | c = (BYTE)((seq % 16) + '0'); seq /= 16;\r |
53668523 L |
2028 | if (c > '9') c += 7;\r |
2029 | ns[i--] = c;\r | |
5630b930 | 2030 | } while (i && seq);\r |
53668523 L |
2031 | ns[i] = '~';\r |
2032 | \r | |
5630b930 L |
2033 | /* Append the suffix to the SFN body */\r |
2034 | for (j = 0; j < i && dst[j] != ' '; j++) { /* Find the offset to append */\r | |
2035 | if (dbc_1st(dst[j])) { /* To avoid DBC break up */\r | |
53668523 L |
2036 | if (j == i - 1) break;\r |
2037 | j++;\r | |
2038 | }\r | |
2039 | }\r | |
5630b930 | 2040 | do { /* Append the suffix */\r |
53668523 L |
2041 | dst[j++] = (i < 8) ? ns[i++] : ' ';\r |
2042 | } while (j < 8);\r | |
2043 | }\r | |
289f6a14 | 2044 | #endif /* FF_USE_LFN && !FF_FS_READONLY */\r |
53668523 L |
2045 | \r |
2046 | \r | |
2047 | \r | |
289f6a14 | 2048 | #if FF_USE_LFN\r |
53668523 | 2049 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 2050 | /* FAT-LFN: Calculate checksum of an SFN entry */\r |
53668523 | 2051 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 2052 | \r |
289f6a14 | 2053 | static BYTE sum_sfn (\r |
53668523 L |
2054 | const BYTE* dir /* Pointer to the SFN entry */\r |
2055 | )\r | |
2056 | {\r | |
2057 | BYTE sum = 0;\r | |
2058 | UINT n = 11;\r | |
2059 | \r | |
289f6a14 L |
2060 | do {\r |
2061 | sum = (sum >> 1) + (sum << 7) + *dir++;\r | |
2062 | } while (--n);\r | |
53668523 L |
2063 | return sum;\r |
2064 | }\r | |
53668523 | 2065 | \r |
289f6a14 | 2066 | #endif /* FF_USE_LFN */\r |
53668523 L |
2067 | \r |
2068 | \r | |
2069 | \r | |
289f6a14 | 2070 | #if FF_FS_EXFAT\r |
53668523 | 2071 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 2072 | /* exFAT: Checksum */\r |
53668523 L |
2073 | /*-----------------------------------------------------------------------*/\r |
2074 | \r | |
289f6a14 | 2075 | static WORD xdir_sum ( /* Get checksum of the directoly entry block */\r |
70702af1 | 2076 | const BYTE* dir /* Directory entry block to be calculated */\r |
53668523 L |
2077 | )\r |
2078 | {\r | |
70702af1 L |
2079 | UINT i, szblk;\r |
2080 | WORD sum;\r | |
2081 | \r | |
2082 | \r | |
289f6a14 | 2083 | szblk = (dir[XDIR_NumSec] + 1) * SZDIRE; /* Number of bytes of the entry block */\r |
70702af1 | 2084 | for (i = sum = 0; i < szblk; i++) {\r |
289f6a14 | 2085 | if (i == XDIR_SetSum) { /* Skip 2-byte sum field */\r |
70702af1 L |
2086 | i++;\r |
2087 | } else {\r | |
2088 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i];\r | |
2089 | }\r | |
2090 | }\r | |
2091 | return sum;\r | |
2092 | }\r | |
2093 | \r | |
2094 | \r | |
2095 | \r | |
289f6a14 | 2096 | static WORD xname_sum ( /* Get check sum (to be used as hash) of the file name */\r |
70702af1 L |
2097 | const WCHAR* name /* File name to be calculated */\r |
2098 | )\r | |
2099 | {\r | |
2100 | WCHAR chr;\r | |
2101 | WORD sum = 0;\r | |
2102 | \r | |
2103 | \r | |
2104 | while ((chr = *name++) != 0) {\r | |
289f6a14 | 2105 | chr = (WCHAR)ff_wtoupper(chr); /* File name needs to be up-case converted */\r |
70702af1 L |
2106 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF);\r |
2107 | sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8);\r | |
2108 | }\r | |
2109 | return sum;\r | |
2110 | }\r | |
2111 | \r | |
2112 | \r | |
289f6a14 L |
2113 | #if !FF_FS_READONLY && FF_USE_MKFS\r |
2114 | static DWORD xsum32 ( /* Returns 32-bit checksum */\r | |
2115 | BYTE dat, /* Byte to be calculated (byte-by-byte processing) */\r | |
2116 | DWORD sum /* Previous sum value */\r | |
70702af1 L |
2117 | )\r |
2118 | {\r | |
2119 | sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat;\r | |
2120 | return sum;\r | |
2121 | }\r | |
53668523 L |
2122 | #endif\r |
2123 | \r | |
70702af1 | 2124 | \r |
70702af1 | 2125 | \r |
5630b930 L |
2126 | /*------------------------------------*/\r |
2127 | /* exFAT: Get a directory entry block */\r | |
2128 | /*------------------------------------*/\r | |
70702af1 | 2129 | \r |
289f6a14 | 2130 | static FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */\r |
5630b930 | 2131 | DIR* dp /* Reading directory object pointing top of the entry block to load */\r |
70702af1 L |
2132 | )\r |
2133 | {\r | |
2134 | FRESULT res;\r | |
289f6a14 | 2135 | UINT i, sz_ent;\r |
5630b930 | 2136 | BYTE *dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory directory entry block 85+C0+C1s */\r |
70702af1 L |
2137 | \r |
2138 | \r | |
5630b930 | 2139 | /* Load file directory entry */\r |
70702af1 L |
2140 | res = move_window(dp->obj.fs, dp->sect);\r |
2141 | if (res != FR_OK) return res;\r | |
5630b930 L |
2142 | if (dp->dir[XDIR_Type] != ET_FILEDIR) return FR_INT_ERR; /* Invalid order */\r |
2143 | memcpy(dirb + 0 * SZDIRE, dp->dir, SZDIRE);\r | |
289f6a14 L |
2144 | sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE;\r |
2145 | if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR;\r | |
70702af1 | 2146 | \r |
5630b930 | 2147 | /* Load stream extension entry */\r |
70702af1 | 2148 | res = dir_next(dp, 0);\r |
289f6a14 | 2149 | if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */\r |
70702af1 L |
2150 | if (res != FR_OK) return res;\r |
2151 | res = move_window(dp->obj.fs, dp->sect);\r | |
53668523 | 2152 | if (res != FR_OK) return res;\r |
5630b930 L |
2153 | if (dp->dir[XDIR_Type] != ET_STREAM) return FR_INT_ERR; /* Invalid order */\r |
2154 | memcpy(dirb + 1 * SZDIRE, dp->dir, SZDIRE);\r | |
289f6a14 | 2155 | if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR;\r |
70702af1 | 2156 | \r |
5630b930 L |
2157 | /* Load file name entries */\r |
2158 | i = 2 * SZDIRE; /* Name offset to load */\r | |
70702af1 L |
2159 | do {\r |
2160 | res = dir_next(dp, 0);\r | |
289f6a14 | 2161 | if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */\r |
70702af1 L |
2162 | if (res != FR_OK) return res;\r |
2163 | res = move_window(dp->obj.fs, dp->sect);\r | |
2164 | if (res != FR_OK) return res;\r | |
5630b930 L |
2165 | if (dp->dir[XDIR_Type] != ET_FILENAME) return FR_INT_ERR; /* Invalid order */\r |
2166 | if (i < MAXDIRB(FF_MAX_LFN)) memcpy(dirb + i, dp->dir, SZDIRE);\r | |
289f6a14 | 2167 | } while ((i += SZDIRE) < sz_ent);\r |
70702af1 | 2168 | \r |
289f6a14 L |
2169 | /* Sanity check (do it for only accessible object) */\r |
2170 | if (i <= MAXDIRB(FF_MAX_LFN)) {\r | |
2171 | if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR;\r | |
2172 | }\r | |
70702af1 L |
2173 | return FR_OK;\r |
2174 | }\r | |
2175 | \r | |
53668523 | 2176 | \r |
289f6a14 L |
2177 | /*------------------------------------------------------------------*/\r |
2178 | /* exFAT: Initialize object allocation info with loaded entry block */\r | |
2179 | /*------------------------------------------------------------------*/\r | |
2180 | \r | |
2181 | static void init_alloc_info (\r | |
2182 | FATFS* fs, /* Filesystem object */\r | |
2183 | FFOBJID* obj /* Object allocation information to be initialized */\r | |
2184 | )\r | |
2185 | {\r | |
2186 | obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Start cluster */\r | |
2187 | obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */\r | |
2188 | obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; /* Allocation status */\r | |
2189 | obj->n_frag = 0; /* No last fragment info */\r | |
2190 | }\r | |
2191 | \r | |
2192 | \r | |
2193 | \r | |
2194 | #if !FF_FS_READONLY || FF_FS_RPATH != 0\r | |
70702af1 L |
2195 | /*------------------------------------------------*/\r |
2196 | /* exFAT: Load the object's directory entry block */\r | |
2197 | /*------------------------------------------------*/\r | |
289f6a14 L |
2198 | \r |
2199 | static FRESULT load_obj_xdir (\r | |
5630b930 | 2200 | DIR* dp, /* Blank directory object to be used to access containing directory */\r |
289f6a14 | 2201 | const FFOBJID* obj /* Object with its containing directory information */\r |
70702af1 L |
2202 | )\r |
2203 | {\r | |
2204 | FRESULT res;\r | |
2205 | \r | |
70702af1 L |
2206 | /* Open object containing directory */\r |
2207 | dp->obj.fs = obj->fs;\r | |
2208 | dp->obj.sclust = obj->c_scl;\r | |
2209 | dp->obj.stat = (BYTE)obj->c_size;\r | |
2210 | dp->obj.objsize = obj->c_size & 0xFFFFFF00;\r | |
289f6a14 | 2211 | dp->obj.n_frag = 0;\r |
70702af1 L |
2212 | dp->blk_ofs = obj->c_ofs;\r |
2213 | \r | |
289f6a14 | 2214 | res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */\r |
70702af1 L |
2215 | if (res == FR_OK) {\r |
2216 | res = load_xdir(dp); /* Load the object's entry block */\r | |
2217 | }\r | |
2218 | return res;\r | |
2219 | }\r | |
53668523 | 2220 | #endif\r |
70702af1 L |
2221 | \r |
2222 | \r | |
289f6a14 L |
2223 | #if !FF_FS_READONLY\r |
2224 | /*----------------------------------------*/\r | |
2225 | /* exFAT: Store the directory entry block */\r | |
2226 | /*----------------------------------------*/\r | |
2227 | \r | |
2228 | static FRESULT store_xdir (\r | |
5630b930 | 2229 | DIR* dp /* Pointer to the directory object */\r |
70702af1 L |
2230 | )\r |
2231 | {\r | |
2232 | FRESULT res;\r | |
2233 | UINT nent;\r | |
5630b930 | 2234 | BYTE *dirb = dp->obj.fs->dirbuf; /* Pointer to the directory entry block 85+C0+C1s */\r |
70702af1 L |
2235 | \r |
2236 | /* Create set sum */\r | |
2237 | st_word(dirb + XDIR_SetSum, xdir_sum(dirb));\r | |
2238 | nent = dirb[XDIR_NumSec] + 1;\r | |
2239 | \r | |
5630b930 | 2240 | /* Store the directory entry block to the directory */\r |
70702af1 L |
2241 | res = dir_sdi(dp, dp->blk_ofs);\r |
2242 | while (res == FR_OK) {\r | |
2243 | res = move_window(dp->obj.fs, dp->sect);\r | |
2244 | if (res != FR_OK) break;\r | |
5630b930 | 2245 | memcpy(dp->dir, dirb, SZDIRE);\r |
70702af1 L |
2246 | dp->obj.fs->wflag = 1;\r |
2247 | if (--nent == 0) break;\r | |
2248 | dirb += SZDIRE;\r | |
2249 | res = dir_next(dp, 0);\r | |
2250 | }\r | |
2251 | return (res == FR_OK || res == FR_DISK_ERR) ? res : FR_INT_ERR;\r | |
2252 | }\r | |
2253 | \r | |
2254 | \r | |
2255 | \r | |
2256 | /*-------------------------------------------*/\r | |
5630b930 | 2257 | /* exFAT: Create a new directory entry block */\r |
70702af1 L |
2258 | /*-------------------------------------------*/\r |
2259 | \r | |
289f6a14 | 2260 | static void create_xdir (\r |
5630b930 | 2261 | BYTE* dirb, /* Pointer to the directory entry block buffer */\r |
289f6a14 | 2262 | const WCHAR* lfn /* Pointer to the object name */\r |
70702af1 L |
2263 | )\r |
2264 | {\r | |
2265 | UINT i;\r | |
289f6a14 L |
2266 | BYTE nc1, nlen;\r |
2267 | WCHAR wc;\r | |
70702af1 L |
2268 | \r |
2269 | \r | |
5630b930 L |
2270 | /* Create file-directory and stream-extension entry */\r |
2271 | memset(dirb, 0, 2 * SZDIRE);\r | |
2272 | dirb[0 * SZDIRE + XDIR_Type] = ET_FILEDIR;\r | |
2273 | dirb[1 * SZDIRE + XDIR_Type] = ET_STREAM;\r | |
70702af1 | 2274 | \r |
5630b930 L |
2275 | /* Create file-name entries */\r |
2276 | i = SZDIRE * 2; /* Top of file_name entries */\r | |
289f6a14 | 2277 | nlen = nc1 = 0; wc = 1;\r |
53668523 | 2278 | do {\r |
5630b930 | 2279 | dirb[i++] = ET_FILENAME; dirb[i++] = 0;\r |
70702af1 | 2280 | do { /* Fill name field */\r |
289f6a14 | 2281 | if (wc != 0 && (wc = lfn[nlen]) != 0) nlen++; /* Get a character if exist */\r |
5630b930 | 2282 | st_word(dirb + i, wc); /* Store it */\r |
289f6a14 L |
2283 | i += 2;\r |
2284 | } while (i % SZDIRE != 0);\r | |
2285 | nc1++;\r | |
2286 | } while (lfn[nlen]); /* Fill next entry if any char follows */\r | |
2287 | \r | |
2288 | dirb[XDIR_NumName] = nlen; /* Set name length */\r | |
2289 | dirb[XDIR_NumSec] = 1 + nc1; /* Set secondary count (C0 + C1s) */\r | |
2290 | st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */\r | |
70702af1 L |
2291 | }\r |
2292 | \r | |
289f6a14 L |
2293 | #endif /* !FF_FS_READONLY */\r |
2294 | #endif /* FF_FS_EXFAT */\r | |
70702af1 L |
2295 | \r |
2296 | \r | |
2297 | \r | |
289f6a14 | 2298 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT\r |
70702af1 L |
2299 | /*-----------------------------------------------------------------------*/\r |
2300 | /* Read an object from the directory */\r | |
2301 | /*-----------------------------------------------------------------------*/\r | |
2302 | \r | |
5630b930 L |
2303 | #define DIR_READ_FILE(dp) dir_read(dp, 0)\r |
2304 | #define DIR_READ_LABEL(dp) dir_read(dp, 1)\r | |
289f6a14 L |
2305 | \r |
2306 | static FRESULT dir_read (\r | |
70702af1 L |
2307 | DIR* dp, /* Pointer to the directory object */\r |
2308 | int vol /* Filtered by 0:file/directory or 1:volume label */\r | |
2309 | )\r | |
2310 | {\r | |
2311 | FRESULT res = FR_NO_FILE;\r | |
2312 | FATFS *fs = dp->obj.fs;\r | |
5630b930 | 2313 | BYTE attr, b;\r |
289f6a14 | 2314 | #if FF_USE_LFN\r |
70702af1 L |
2315 | BYTE ord = 0xFF, sum = 0xFF;\r |
2316 | #endif\r | |
2317 | \r | |
2318 | while (dp->sect) {\r | |
2319 | res = move_window(fs, dp->sect);\r | |
53668523 | 2320 | if (res != FR_OK) break;\r |
5630b930 L |
2321 | b = dp->dir[DIR_Name]; /* Test for the entry type */\r |
2322 | if (b == 0) {\r | |
289f6a14 L |
2323 | res = FR_NO_FILE; break; /* Reached to end of the directory */\r |
2324 | }\r | |
2325 | #if FF_FS_EXFAT\r | |
70702af1 | 2326 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
289f6a14 | 2327 | if (FF_USE_LABEL && vol) {\r |
5630b930 | 2328 | if (b == ET_VLABEL) break; /* Volume label entry? */\r |
70702af1 | 2329 | } else {\r |
5630b930 | 2330 | if (b == ET_FILEDIR) { /* Start of the file entry block? */\r |
70702af1 L |
2331 | dp->blk_ofs = dp->dptr; /* Get location of the block */\r |
2332 | res = load_xdir(dp); /* Load the entry block */\r | |
2333 | if (res == FR_OK) {\r | |
2334 | dp->obj.attr = fs->dirbuf[XDIR_Attr] & AM_MASK; /* Get attribute */\r | |
53668523 | 2335 | }\r |
70702af1 L |
2336 | break;\r |
2337 | }\r | |
2338 | }\r | |
2339 | } else\r | |
2340 | #endif\r | |
289f6a14 | 2341 | { /* On the FAT/FAT32 volume */\r |
5630b930 | 2342 | dp->obj.attr = attr = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */\r |
289f6a14 | 2343 | #if FF_USE_LFN /* LFN configuration */\r |
5630b930 | 2344 | if (b == DDEM || b == '.' || (int)((attr & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */\r |
70702af1 L |
2345 | ord = 0xFF;\r |
2346 | } else {\r | |
5630b930 L |
2347 | if (attr == AM_LFN) { /* An LFN entry is found */\r |
2348 | if (b & LLEF) { /* Is it start of an LFN sequence? */\r | |
70702af1 | 2349 | sum = dp->dir[LDIR_Chksum];\r |
5630b930 | 2350 | b &= (BYTE)~LLEF; ord = b;\r |
70702af1 L |
2351 | dp->blk_ofs = dp->dptr;\r |
2352 | }\r | |
2353 | /* Check LFN validity and capture it */\r | |
5630b930 L |
2354 | ord = (b == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;\r |
2355 | } else { /* An SFN entry is found */\r | |
289f6a14 | 2356 | if (ord != 0 || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */\r |
5630b930 | 2357 | dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */\r |
70702af1 L |
2358 | }\r |
2359 | break;\r | |
53668523 | 2360 | }\r |
53668523 | 2361 | }\r |
53668523 | 2362 | #else /* Non LFN configuration */\r |
5630b930 | 2363 | if (b != DDEM && b != '.' && attr != AM_LFN && (int)((attr & ~AM_ARC) == AM_VOL) == vol) { /* Is it a valid entry? */\r |
70702af1 L |
2364 | break;\r |
2365 | }\r | |
53668523 | 2366 | #endif\r |
70702af1 | 2367 | }\r |
53668523 | 2368 | res = dir_next(dp, 0); /* Next entry */\r |
70702af1 L |
2369 | if (res != FR_OK) break;\r |
2370 | }\r | |
53668523 | 2371 | \r |
70702af1 | 2372 | if (res != FR_OK) dp->sect = 0; /* Terminate the read operation on error or EOT */\r |
53668523 L |
2373 | return res;\r |
2374 | }\r | |
2375 | \r | |
289f6a14 | 2376 | #endif /* FF_FS_MINIMIZE <= 1 || FF_USE_LABEL || FF_FS_RPATH >= 2 */\r |
53668523 L |
2377 | \r |
2378 | \r | |
2379 | \r | |
2380 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 2381 | /* Directory handling - Find an object in the directory */\r |
53668523 | 2382 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 2383 | \r |
289f6a14 L |
2384 | static FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */\r |
2385 | DIR* dp /* Pointer to the directory object with the file name */\r | |
53668523 L |
2386 | )\r |
2387 | {\r | |
2388 | FRESULT res;\r | |
70702af1 L |
2389 | FATFS *fs = dp->obj.fs;\r |
2390 | BYTE c;\r | |
289f6a14 | 2391 | #if FF_USE_LFN\r |
70702af1 | 2392 | BYTE a, ord, sum;\r |
53668523 L |
2393 | #endif\r |
2394 | \r | |
70702af1 L |
2395 | res = dir_sdi(dp, 0); /* Rewind directory object */\r |
2396 | if (res != FR_OK) return res;\r | |
289f6a14 | 2397 | #if FF_FS_EXFAT\r |
70702af1 L |
2398 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
2399 | BYTE nc;\r | |
2400 | UINT di, ni;\r | |
2401 | WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */\r | |
2402 | \r | |
5630b930 | 2403 | while ((res = DIR_READ_FILE(dp)) == FR_OK) { /* Read an item */\r |
289f6a14 | 2404 | #if FF_MAX_LFN < 255\r |
5630b930 | 2405 | if (fs->dirbuf[XDIR_NumName] > FF_MAX_LFN) continue; /* Skip comparison if inaccessible object name */\r |
289f6a14 L |
2406 | #endif\r |
2407 | if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */\r | |
70702af1 L |
2408 | for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */\r |
2409 | if ((di % SZDIRE) == 0) di += 2;\r | |
2410 | if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break;\r | |
2411 | }\r | |
2412 | if (nc == 0 && !fs->lfnbuf[ni]) break; /* Name matched? */\r | |
2413 | }\r | |
2414 | return res;\r | |
2415 | }\r | |
2416 | #endif\r | |
289f6a14 L |
2417 | /* On the FAT/FAT32 volume */\r |
2418 | #if FF_USE_LFN\r | |
70702af1 L |
2419 | ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r |
2420 | #endif\r | |
2421 | do {\r | |
2422 | res = move_window(fs, dp->sect);\r | |
53668523 | 2423 | if (res != FR_OK) break;\r |
70702af1 | 2424 | c = dp->dir[DIR_Name];\r |
53668523 | 2425 | if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */\r |
289f6a14 | 2426 | #if FF_USE_LFN /* LFN configuration */\r |
70702af1 L |
2427 | dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK;\r |
2428 | if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */\r | |
2429 | ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r | |
53668523 L |
2430 | } else {\r |
2431 | if (a == AM_LFN) { /* An LFN entry is found */\r | |
70702af1 L |
2432 | if (!(dp->fn[NSFLAG] & NS_NOLFN)) {\r |
2433 | if (c & LLEF) { /* Is it start of LFN sequence? */\r | |
2434 | sum = dp->dir[LDIR_Chksum];\r | |
2435 | c &= (BYTE)~LLEF; ord = c; /* LFN start order */\r | |
2436 | dp->blk_ofs = dp->dptr; /* Start offset of LFN */\r | |
2437 | }\r | |
2438 | /* Check validity of the LFN entry and compare it with given name */\r | |
2439 | ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;\r | |
53668523 | 2440 | }\r |
53668523 | 2441 | } else { /* An SFN entry is found */\r |
289f6a14 | 2442 | if (ord == 0 && sum == sum_sfn(dp->dir)) break; /* LFN matched? */\r |
5630b930 | 2443 | if (!(dp->fn[NSFLAG] & NS_LOSS) && !memcmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */\r |
70702af1 | 2444 | ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */\r |
53668523 L |
2445 | }\r |
2446 | }\r | |
2447 | #else /* Non LFN configuration */\r | |
70702af1 | 2448 | dp->obj.attr = dp->dir[DIR_Attr] & AM_MASK;\r |
5630b930 | 2449 | if (!(dp->dir[DIR_Attr] & AM_VOL) && !memcmp(dp->dir, dp->fn, 11)) break; /* Is it a valid entry? */\r |
53668523 | 2450 | #endif\r |
70702af1 L |
2451 | res = dir_next(dp, 0); /* Next entry */\r |
2452 | } while (res == FR_OK);\r | |
53668523 L |
2453 | \r |
2454 | return res;\r | |
2455 | }\r | |
53668523 L |
2456 | \r |
2457 | \r | |
2458 | \r | |
2459 | \r | |
289f6a14 | 2460 | #if !FF_FS_READONLY\r |
53668523 L |
2461 | /*-----------------------------------------------------------------------*/\r |
2462 | /* Register an object to the directory */\r | |
2463 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 2464 | \r |
289f6a14 L |
2465 | static FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */\r |
2466 | DIR* dp /* Target directory with object name to be created */\r | |
53668523 L |
2467 | )\r |
2468 | {\r | |
2469 | FRESULT res;\r | |
70702af1 | 2470 | FATFS *fs = dp->obj.fs;\r |
289f6a14 | 2471 | #if FF_USE_LFN /* LFN configuration */\r |
5630b930 | 2472 | UINT n, len, n_ent;\r |
70702af1 L |
2473 | BYTE sn[12], sum;\r |
2474 | \r | |
2475 | \r | |
2476 | if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */\r | |
5630b930 | 2477 | for (len = 0; fs->lfnbuf[len]; len++) ; /* Get lfn length */\r |
70702af1 | 2478 | \r |
289f6a14 | 2479 | #if FF_FS_EXFAT\r |
70702af1 | 2480 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
5630b930 L |
2481 | n_ent = (len + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */\r |
2482 | res = dir_alloc(dp, n_ent); /* Allocate directory entries */\r | |
70702af1 | 2483 | if (res != FR_OK) return res;\r |
5630b930 | 2484 | dp->blk_ofs = dp->dptr - SZDIRE * (n_ent - 1); /* Set the allocated entry block offset */\r |
70702af1 | 2485 | \r |
5630b930 | 2486 | if (dp->obj.stat & 4) { /* Has the directory been stretched by new allocation? */\r |
289f6a14 L |
2487 | dp->obj.stat &= ~4;\r |
2488 | res = fill_first_frag(&dp->obj); /* Fill the first fragment on the FAT if needed */\r | |
70702af1 | 2489 | if (res != FR_OK) return res;\r |
289f6a14 | 2490 | res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill the last fragment on the FAT if needed */\r |
70702af1 | 2491 | if (res != FR_OK) return res;\r |
5630b930 | 2492 | if (dp->obj.sclust != 0) { /* Is it a sub-directory? */\r |
289f6a14 L |
2493 | DIR dj;\r |
2494 | \r | |
2495 | res = load_obj_xdir(&dj, &dp->obj); /* Load the object status */\r | |
2496 | if (res != FR_OK) return res;\r | |
5630b930 L |
2497 | dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */\r |
2498 | st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize);\r | |
289f6a14 | 2499 | st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize);\r |
5630b930 | 2500 | fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1; /* Update the allocation status */\r |
289f6a14 L |
2501 | res = store_xdir(&dj); /* Store the object status */\r |
2502 | if (res != FR_OK) return res;\r | |
2503 | }\r | |
70702af1 | 2504 | }\r |
53668523 | 2505 | \r |
70702af1 L |
2506 | create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */\r |
2507 | return FR_OK;\r | |
2508 | }\r | |
2509 | #endif\r | |
289f6a14 | 2510 | /* On the FAT/FAT32 volume */\r |
5630b930 | 2511 | memcpy(sn, dp->fn, 12);\r |
7b78a5a2 | 2512 | if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */\r |
70702af1 | 2513 | dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */\r |
53668523 | 2514 | for (n = 1; n < 100; n++) {\r |
70702af1 | 2515 | gen_numname(dp->fn, sn, fs->lfnbuf, n); /* Generate a numbered name */\r |
53668523 L |
2516 | res = dir_find(dp); /* Check if the name collides with existing SFN */\r |
2517 | if (res != FR_OK) break;\r | |
2518 | }\r | |
2519 | if (n == 100) return FR_DENIED; /* Abort if too many collisions */\r | |
2520 | if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */\r | |
70702af1 | 2521 | dp->fn[NSFLAG] = sn[NSFLAG];\r |
53668523 L |
2522 | }\r |
2523 | \r | |
70702af1 | 2524 | /* Create an SFN with/without LFNs. */\r |
5630b930 L |
2525 | n_ent = (sn[NSFLAG] & NS_LFN) ? (len + 12) / 13 + 1 : 1; /* Number of entries to allocate */\r |
2526 | res = dir_alloc(dp, n_ent); /* Allocate entries */\r | |
2527 | if (res == FR_OK && --n_ent) { /* Set LFN entry if needed */\r | |
2528 | res = dir_sdi(dp, dp->dptr - n_ent * SZDIRE);\r | |
53668523 | 2529 | if (res == FR_OK) {\r |
70702af1 | 2530 | sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */\r |
53668523 | 2531 | do { /* Store LFN entries in bottom first */\r |
70702af1 | 2532 | res = move_window(fs, dp->sect);\r |
53668523 | 2533 | if (res != FR_OK) break;\r |
5630b930 | 2534 | put_lfn(fs->lfnbuf, dp->dir, (BYTE)n_ent, sum);\r |
70702af1 | 2535 | fs->wflag = 1;\r |
53668523 | 2536 | res = dir_next(dp, 0); /* Next entry */\r |
5630b930 | 2537 | } while (res == FR_OK && --n_ent);\r |
53668523 L |
2538 | }\r |
2539 | }\r | |
70702af1 | 2540 | \r |
53668523 L |
2541 | #else /* Non LFN configuration */\r |
2542 | res = dir_alloc(dp, 1); /* Allocate an entry for SFN */\r | |
70702af1 | 2543 | \r |
53668523 L |
2544 | #endif\r |
2545 | \r | |
70702af1 L |
2546 | /* Set SFN entry */\r |
2547 | if (res == FR_OK) {\r | |
2548 | res = move_window(fs, dp->sect);\r | |
53668523 | 2549 | if (res == FR_OK) {\r |
5630b930 L |
2550 | memset(dp->dir, 0, SZDIRE); /* Clean the entry */\r |
2551 | memcpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */\r | |
289f6a14 | 2552 | #if FF_USE_LFN\r |
7b78a5a2 | 2553 | dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */\r |
53668523 | 2554 | #endif\r |
70702af1 | 2555 | fs->wflag = 1;\r |
53668523 L |
2556 | }\r |
2557 | }\r | |
2558 | \r | |
2559 | return res;\r | |
2560 | }\r | |
53668523 | 2561 | \r |
289f6a14 | 2562 | #endif /* !FF_FS_READONLY */\r |
53668523 L |
2563 | \r |
2564 | \r | |
2565 | \r | |
289f6a14 | 2566 | #if !FF_FS_READONLY && FF_FS_MINIMIZE == 0\r |
53668523 L |
2567 | /*-----------------------------------------------------------------------*/\r |
2568 | /* Remove an object from the directory */\r | |
2569 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 2570 | \r |
289f6a14 L |
2571 | static FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */\r |
2572 | DIR* dp /* Directory object pointing the entry to be removed */\r | |
53668523 L |
2573 | )\r |
2574 | {\r | |
2575 | FRESULT res;\r | |
70702af1 | 2576 | FATFS *fs = dp->obj.fs;\r |
289f6a14 | 2577 | #if FF_USE_LFN /* LFN configuration */\r |
70702af1 | 2578 | DWORD last = dp->dptr;\r |
53668523 | 2579 | \r |
70702af1 | 2580 | res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */\r |
53668523 L |
2581 | if (res == FR_OK) {\r |
2582 | do {\r | |
70702af1 | 2583 | res = move_window(fs, dp->sect);\r |
53668523 | 2584 | if (res != FR_OK) break;\r |
289f6a14 L |
2585 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
2586 | dp->dir[XDIR_Type] &= 0x7F; /* Clear the entry InUse flag. */\r | |
5630b930 | 2587 | } else { /* On the FAT/FAT32 volume */\r |
289f6a14 | 2588 | dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'. */\r |
70702af1 L |
2589 | }\r |
2590 | fs->wflag = 1;\r | |
2591 | if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */\r | |
2592 | res = dir_next(dp, 0); /* Next entry */\r | |
53668523 L |
2593 | } while (res == FR_OK);\r |
2594 | if (res == FR_NO_FILE) res = FR_INT_ERR;\r | |
2595 | }\r | |
53668523 | 2596 | #else /* Non LFN configuration */\r |
70702af1 L |
2597 | \r |
2598 | res = move_window(fs, dp->sect);\r | |
53668523 | 2599 | if (res == FR_OK) {\r |
289f6a14 | 2600 | dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'.*/\r |
70702af1 | 2601 | fs->wflag = 1;\r |
53668523 L |
2602 | }\r |
2603 | #endif\r | |
2604 | \r | |
2605 | return res;\r | |
2606 | }\r | |
53668523 | 2607 | \r |
289f6a14 | 2608 | #endif /* !FF_FS_READONLY && FF_FS_MINIMIZE == 0 */\r |
53668523 L |
2609 | \r |
2610 | \r | |
2611 | \r | |
289f6a14 | 2612 | #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2\r |
53668523 L |
2613 | /*-----------------------------------------------------------------------*/\r |
2614 | /* Get file information from directory entry */\r | |
2615 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 2616 | \r |
289f6a14 | 2617 | static void get_fileinfo (\r |
53668523 | 2618 | DIR* dp, /* Pointer to the directory object */\r |
289f6a14 | 2619 | FILINFO* fno /* Pointer to the file information to be filled */\r |
53668523 L |
2620 | )\r |
2621 | {\r | |
289f6a14 L |
2622 | UINT si, di;\r |
2623 | #if FF_USE_LFN\r | |
5630b930 | 2624 | BYTE lcf;\r |
289f6a14 | 2625 | WCHAR wc, hs;\r |
70702af1 | 2626 | FATFS *fs = dp->obj.fs;\r |
5630b930 | 2627 | UINT nw;\r |
289f6a14 L |
2628 | #else\r |
2629 | TCHAR c;\r | |
70702af1 | 2630 | #endif\r |
53668523 L |
2631 | \r |
2632 | \r | |
289f6a14 L |
2633 | fno->fname[0] = 0; /* Invaidate file info */\r |
2634 | if (dp->sect == 0) return; /* Exit if read pointer has reached end of directory */\r | |
53668523 | 2635 | \r |
289f6a14 L |
2636 | #if FF_USE_LFN /* LFN configuration */\r |
2637 | #if FF_FS_EXFAT\r | |
5630b930 L |
2638 | if (fs->fs_type == FS_EXFAT) { /* exFAT volume */\r |
2639 | UINT nc = 0;\r | |
2640 | \r | |
2641 | si = SZDIRE * 2; di = 0; /* 1st C1 entry in the entry block */\r | |
2642 | hs = 0;\r | |
2643 | while (nc < fs->dirbuf[XDIR_NumName]) {\r | |
2644 | if (si >= MAXDIRB(FF_MAX_LFN)) { /* Truncated directory block? */\r | |
2645 | di = 0; break;\r | |
2646 | }\r | |
2647 | if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */\r | |
2648 | wc = ld_word(fs->dirbuf + si); si += 2; nc++; /* Get a character */\r | |
2649 | if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */\r | |
2650 | hs = wc; continue; /* Get low surrogate */\r | |
2651 | }\r | |
2652 | nw = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in API encoding */\r | |
2653 | if (nw == 0) { /* Buffer overflow or wrong char? */\r | |
2654 | di = 0; break;\r | |
2655 | }\r | |
2656 | di += nw;\r | |
2657 | hs = 0;\r | |
2658 | }\r | |
2659 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r | |
2660 | if (di == 0) fno->fname[di++] = '\?'; /* Inaccessible object name? */\r | |
2661 | fno->fname[di] = 0; /* Terminate the name */\r | |
2662 | fno->altname[0] = 0; /* exFAT does not support SFN */\r | |
2663 | \r | |
2664 | fno->fattrib = fs->dirbuf[XDIR_Attr] & AM_MASKX; /* Attribute */\r | |
2665 | fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */\r | |
2666 | fno->ftime = ld_word(fs->dirbuf + XDIR_ModTime + 0); /* Time */\r | |
2667 | fno->fdate = ld_word(fs->dirbuf + XDIR_ModTime + 2); /* Date */\r | |
70702af1 L |
2668 | return;\r |
2669 | } else\r | |
53668523 | 2670 | #endif\r |
5630b930 | 2671 | { /* FAT/FAT32 volume */\r |
70702af1 | 2672 | if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */\r |
5630b930 L |
2673 | si = di = 0;\r |
2674 | hs = 0;\r | |
289f6a14 L |
2675 | while (fs->lfnbuf[si] != 0) {\r |
2676 | wc = fs->lfnbuf[si++]; /* Get an LFN character (UTF-16) */\r | |
2677 | if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */\r | |
2678 | hs = wc; continue; /* Get low surrogate */\r | |
70702af1 | 2679 | }\r |
5630b930 L |
2680 | nw = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in API encoding */\r |
2681 | if (nw == 0) { /* Buffer overflow or wrong char? */\r | |
2682 | di = 0; break;\r | |
2683 | }\r | |
2684 | di += nw;\r | |
289f6a14 | 2685 | hs = 0;\r |
70702af1 | 2686 | }\r |
289f6a14 L |
2687 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r |
2688 | fno->fname[di] = 0; /* Terminate the LFN (null string means LFN is invalid) */\r | |
53668523 | 2689 | }\r |
53668523 | 2690 | }\r |
53668523 | 2691 | \r |
289f6a14 L |
2692 | si = di = 0;\r |
2693 | while (si < 11) { /* Get SFN from SFN entry */\r | |
2694 | wc = dp->dir[si++]; /* Get a char */\r | |
2695 | if (wc == ' ') continue; /* Skip padding spaces */\r | |
2696 | if (wc == RDDEM) wc = DDEM; /* Restore replaced DDEM character */\r | |
2697 | if (si == 9 && di < FF_SFN_BUF) fno->altname[di++] = '.'; /* Insert a . if extension is exist */\r | |
2698 | #if FF_LFN_UNICODE >= 1 /* Unicode output */\r | |
2699 | if (dbc_1st((BYTE)wc) && si != 8 && si != 11 && dbc_2nd(dp->dir[si])) { /* Make a DBC if needed */\r | |
2700 | wc = wc << 8 | dp->dir[si++];\r | |
70702af1 | 2701 | }\r |
289f6a14 | 2702 | wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM -> Unicode */\r |
5630b930 L |
2703 | if (wc == 0) { /* Wrong char in the current code page? */\r |
2704 | di = 0; break;\r | |
2705 | }\r | |
2706 | nw = put_utf(wc, &fno->altname[di], FF_SFN_BUF - di); /* Store it in API encoding */\r | |
2707 | if (nw == 0) { /* Buffer overflow? */\r | |
2708 | di = 0; break;\r | |
2709 | }\r | |
2710 | di += nw;\r | |
289f6a14 L |
2711 | #else /* ANSI/OEM output */\r |
2712 | fno->altname[di++] = (TCHAR)wc; /* Store it without any conversion */\r | |
53668523 | 2713 | #endif\r |
289f6a14 L |
2714 | }\r |
2715 | fno->altname[di] = 0; /* Terminate the SFN (null string means SFN is invalid) */\r | |
2716 | \r | |
2717 | if (fno->fname[0] == 0) { /* If LFN is invalid, altname[] needs to be copied to fname[] */\r | |
5630b930 L |
2718 | if (di == 0) { /* If LFN and SFN both are invalid, this object is inaccessible */\r |
2719 | fno->fname[di++] = '\?';\r | |
289f6a14 | 2720 | } else {\r |
5630b930 | 2721 | for (si = di = 0, lcf = NS_BODY; fno->altname[si]; si++, di++) { /* Copy altname[] to fname[] with case information */\r |
289f6a14 | 2722 | wc = (WCHAR)fno->altname[si];\r |
5630b930 L |
2723 | if (wc == '.') lcf = NS_EXT;\r |
2724 | if (IsUpper(wc) && (dp->dir[DIR_NTres] & lcf)) wc += 0x20;\r | |
289f6a14 | 2725 | fno->fname[di] = (TCHAR)wc;\r |
53668523 L |
2726 | }\r |
2727 | }\r | |
289f6a14 L |
2728 | fno->fname[di] = 0; /* Terminate the LFN */\r |
2729 | if (!dp->dir[DIR_NTres]) fno->altname[0] = 0; /* Altname is not needed if neither LFN nor case info is exist. */\r | |
53668523 | 2730 | }\r |
70702af1 L |
2731 | \r |
2732 | #else /* Non-LFN configuration */\r | |
289f6a14 L |
2733 | si = di = 0;\r |
2734 | while (si < 11) { /* Copy name body and extension */\r | |
2735 | c = (TCHAR)dp->dir[si++];\r | |
2736 | if (c == ' ') continue; /* Skip padding spaces */\r | |
2737 | if (c == RDDEM) c = DDEM; /* Restore replaced DDEM character */\r | |
2738 | if (si == 9) fno->fname[di++] = '.';/* Insert a . if extension is exist */\r | |
2739 | fno->fname[di++] = c;\r | |
70702af1 | 2740 | }\r |
5630b930 | 2741 | fno->fname[di] = 0; /* Terminate the SFN */\r |
53668523 | 2742 | #endif\r |
70702af1 | 2743 | \r |
5630b930 | 2744 | fno->fattrib = dp->dir[DIR_Attr] & AM_MASK; /* Attribute */\r |
289f6a14 L |
2745 | fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */\r |
2746 | fno->ftime = ld_word(dp->dir + DIR_ModTime + 0); /* Time */\r | |
2747 | fno->fdate = ld_word(dp->dir + DIR_ModTime + 2); /* Date */\r | |
53668523 | 2748 | }\r |
53668523 | 2749 | \r |
289f6a14 | 2750 | #endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */\r |
53668523 L |
2751 | \r |
2752 | \r | |
2753 | \r | |
289f6a14 | 2754 | #if FF_USE_FIND && FF_FS_MINIMIZE <= 1\r |
53668523 | 2755 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 2756 | /* Pattern matching */\r |
53668523 L |
2757 | /*-----------------------------------------------------------------------*/\r |
2758 | \r | |
5630b930 L |
2759 | #define FIND_RECURS 4 /* Maximum number of wildcard terms in the pattern to limit recursion */\r |
2760 | \r | |
2761 | \r | |
2762 | static DWORD get_achar ( /* Get a character and advance ptr */\r | |
289f6a14 | 2763 | const TCHAR** ptr /* Pointer to pointer to the ANSI/OEM or Unicode string */\r |
70702af1 L |
2764 | )\r |
2765 | {\r | |
289f6a14 | 2766 | DWORD chr;\r |
70702af1 | 2767 | \r |
289f6a14 L |
2768 | \r |
2769 | #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode input */\r | |
2770 | chr = tchar2uni(ptr);\r | |
2771 | if (chr == 0xFFFFFFFF) chr = 0; /* Wrong UTF encoding is recognized as end of the string */\r | |
2772 | chr = ff_wtoupper(chr);\r | |
2773 | \r | |
2774 | #else /* ANSI/OEM input */\r | |
2775 | chr = (BYTE)*(*ptr)++; /* Get a byte */\r | |
2776 | if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */\r | |
2777 | #if FF_CODE_PAGE == 0\r | |
2778 | if (ExCvt && chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */\r | |
2779 | #elif FF_CODE_PAGE < 900\r | |
70702af1 | 2780 | if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */\r |
289f6a14 L |
2781 | #endif\r |
2782 | #if FF_CODE_PAGE == 0 || FF_CODE_PAGE >= 900\r | |
2783 | if (dbc_1st((BYTE)chr)) { /* Get DBC 2nd byte if needed */\r | |
2784 | chr = dbc_2nd((BYTE)**ptr) ? chr << 8 | (BYTE)*(*ptr)++ : 0;\r | |
70702af1 L |
2785 | }\r |
2786 | #endif\r | |
289f6a14 | 2787 | \r |
70702af1 | 2788 | #endif\r |
289f6a14 | 2789 | return chr;\r |
70702af1 L |
2790 | }\r |
2791 | \r | |
2792 | \r | |
5630b930 | 2793 | static int pattern_match ( /* 0:mismatched, 1:matched */\r |
70702af1 L |
2794 | const TCHAR* pat, /* Matching pattern */\r |
2795 | const TCHAR* nam, /* String to be tested */\r | |
5630b930 L |
2796 | UINT skip, /* Number of pre-skip chars (number of ?s, b8:infinite (* specified)) */\r |
2797 | UINT recur /* Recursion count */\r | |
70702af1 L |
2798 | )\r |
2799 | {\r | |
5630b930 L |
2800 | const TCHAR *pptr;\r |
2801 | const TCHAR *nptr;\r | |
2802 | DWORD pchr, nchr;\r | |
2803 | UINT sk;\r | |
70702af1 L |
2804 | \r |
2805 | \r | |
5630b930 | 2806 | while ((skip & 0xFF) != 0) { /* Pre-skip name chars */\r |
70702af1 | 2807 | if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */\r |
5630b930 | 2808 | skip--;\r |
70702af1 | 2809 | }\r |
5630b930 | 2810 | if (*pat == 0 && skip) return 1; /* Matched? (short circuit) */\r |
70702af1 L |
2811 | \r |
2812 | do {\r | |
5630b930 | 2813 | pptr = pat; nptr = nam; /* Top of pattern and name to match */\r |
70702af1 | 2814 | for (;;) {\r |
5630b930 L |
2815 | if (*pptr == '\?' || *pptr == '*') { /* Wildcard term? */\r |
2816 | if (recur == 0) return 0; /* Too many wildcard terms? */\r | |
2817 | sk = 0;\r | |
2818 | do { /* Analyze the wildcard term */\r | |
2819 | if (*pptr++ == '\?') {\r | |
2820 | sk++;\r | |
2821 | } else {\r | |
2822 | sk |= 0x100;\r | |
2823 | }\r | |
2824 | } while (*pptr == '\?' || *pptr == '*');\r | |
2825 | if (pattern_match(pptr, nptr, sk, recur - 1)) return 1; /* Test new branch (recursive call) */\r | |
2826 | nchr = *nptr; break; /* Branch mismatched */\r | |
2827 | }\r | |
2828 | pchr = get_achar(&pptr); /* Get a pattern char */\r | |
2829 | nchr = get_achar(&nptr); /* Get a name char */\r | |
2830 | if (pchr != nchr) break; /* Branch mismatched? */\r | |
2831 | if (pchr == 0) return 1; /* Branch matched? (matched at end of both strings) */\r | |
70702af1 L |
2832 | }\r |
2833 | get_achar(&nam); /* nam++ */\r | |
5630b930 | 2834 | } while (skip && nchr); /* Retry until end of name if infinite search is specified */\r |
70702af1 L |
2835 | \r |
2836 | return 0;\r | |
2837 | }\r | |
2838 | \r | |
289f6a14 | 2839 | #endif /* FF_USE_FIND && FF_FS_MINIMIZE <= 1 */\r |
70702af1 L |
2840 | \r |
2841 | \r | |
2842 | \r | |
2843 | /*-----------------------------------------------------------------------*/\r | |
2844 | /* Pick a top segment and create the object name in directory form */\r | |
2845 | /*-----------------------------------------------------------------------*/\r | |
2846 | \r | |
289f6a14 L |
2847 | static FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */\r |
2848 | DIR* dp, /* Pointer to the directory object */\r | |
2849 | const TCHAR** path /* Pointer to pointer to the segment in the path string */\r | |
53668523 L |
2850 | )\r |
2851 | {\r | |
289f6a14 | 2852 | #if FF_USE_LFN /* LFN configuration */\r |
53668523 | 2853 | BYTE b, cf;\r |
5630b930 L |
2854 | WCHAR wc;\r |
2855 | WCHAR *lfn;\r | |
2856 | const TCHAR* p;\r | |
289f6a14 | 2857 | DWORD uc;\r |
53668523 | 2858 | UINT i, ni, si, di;\r |
53668523 | 2859 | \r |
289f6a14 L |
2860 | \r |
2861 | /* Create LFN into LFN working buffer */\r | |
2862 | p = *path; lfn = dp->obj.fs->lfnbuf; di = 0;\r | |
2863 | for (;;) {\r | |
2864 | uc = tchar2uni(&p); /* Get a character */\r | |
2865 | if (uc == 0xFFFFFFFF) return FR_INVALID_NAME; /* Invalid code or UTF decode error */\r | |
2866 | if (uc >= 0x10000) lfn[di++] = (WCHAR)(uc >> 16); /* Store high surrogate if needed */\r | |
2867 | wc = (WCHAR)uc;\r | |
5630b930 L |
2868 | if (wc < ' ' || IsSeparator(wc)) break; /* Break if end of the path or a separator is found */\r |
2869 | if (wc < 0x80 && strchr("*:<>|\"\?\x7F", (int)wc)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */\r | |
289f6a14 | 2870 | if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */\r |
5630b930 | 2871 | lfn[di++] = wc; /* Store the Unicode character */\r |
53668523 | 2872 | }\r |
5630b930 L |
2873 | if (wc < ' ') { /* Stopped at end of the path? */\r |
2874 | cf = NS_LAST; /* Last segment */\r | |
2875 | } else { /* Stopped at a separator */\r | |
2876 | while (IsSeparator(*p)) p++; /* Skip duplicated separators if exist */\r | |
2877 | cf = 0; /* Next segment may follow */\r | |
2878 | if (IsTerminator(*p)) cf = NS_LAST; /* Ignore terminating separator */\r | |
2879 | }\r | |
2880 | *path = p; /* Return pointer to the next segment */\r | |
289f6a14 L |
2881 | \r |
2882 | #if FF_FS_RPATH != 0\r | |
70702af1 L |
2883 | if ((di == 1 && lfn[di - 1] == '.') ||\r |
2884 | (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */\r | |
53668523 | 2885 | lfn[di] = 0;\r |
5630b930 | 2886 | for (i = 0; i < 11; i++) { /* Create dot name for SFN entry */\r |
53668523 | 2887 | dp->fn[i] = (i < di) ? '.' : ' ';\r |
289f6a14 | 2888 | }\r |
5630b930 | 2889 | dp->fn[i] = cf | NS_DOT; /* This is a dot entry */\r |
53668523 L |
2890 | return FR_OK;\r |
2891 | }\r | |
2892 | #endif\r | |
5630b930 | 2893 | while (di) { /* Snip off trailing spaces and dots if exist */\r |
289f6a14 L |
2894 | wc = lfn[di - 1];\r |
2895 | if (wc != ' ' && wc != '.') break;\r | |
53668523 L |
2896 | di--;\r |
2897 | }\r | |
289f6a14 L |
2898 | lfn[di] = 0; /* LFN is created into the working buffer */\r |
2899 | if (di == 0) return FR_INVALID_NAME; /* Reject null name */\r | |
53668523 L |
2900 | \r |
2901 | /* Create SFN in directory form */\r | |
289f6a14 L |
2902 | for (si = 0; lfn[si] == ' '; si++) ; /* Remove leading spaces */\r |
2903 | if (si > 0 || lfn[si] == '.') cf |= NS_LOSS | NS_LFN; /* Is there any leading space or dot? */\r | |
2904 | while (di > 0 && lfn[di - 1] != '.') di--; /* Find last dot (di<=si: no extension) */\r | |
53668523 | 2905 | \r |
5630b930 | 2906 | memset(dp->fn, ' ', 11);\r |
70702af1 | 2907 | i = b = 0; ni = 8;\r |
53668523 | 2908 | for (;;) {\r |
289f6a14 L |
2909 | wc = lfn[si++]; /* Get an LFN character */\r |
2910 | if (wc == 0) break; /* Break on end of the LFN */\r | |
2911 | if (wc == ' ' || (wc == '.' && si != di)) { /* Remove embedded spaces and dots */\r | |
2912 | cf |= NS_LOSS | NS_LFN;\r | |
2913 | continue;\r | |
53668523 L |
2914 | }\r |
2915 | \r | |
289f6a14 L |
2916 | if (i >= ni || si == di) { /* End of field? */\r |
2917 | if (ni == 11) { /* Name extension overflow? */\r | |
2918 | cf |= NS_LOSS | NS_LFN;\r | |
2919 | break;\r | |
53668523 | 2920 | }\r |
289f6a14 L |
2921 | if (si != di) cf |= NS_LOSS | NS_LFN; /* Name body overflow? */\r |
2922 | if (si > di) break; /* No name extension? */\r | |
2923 | si = di; i = 8; ni = 11; b <<= 2; /* Enter name extension */\r | |
2924 | continue;\r | |
53668523 L |
2925 | }\r |
2926 | \r | |
5630b930 | 2927 | if (wc >= 0x80) { /* Is this an extended character? */\r |
289f6a14 L |
2928 | cf |= NS_LFN; /* LFN entry needs to be created */\r |
2929 | #if FF_CODE_PAGE == 0\r | |
5630b930 | 2930 | if (ExCvt) { /* In SBCS cfg */\r |
289f6a14 L |
2931 | wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */\r |
2932 | if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */\r | |
5630b930 L |
2933 | } else { /* In DBCS cfg */\r |
2934 | wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Up-convert ==> ANSI/OEM code */\r | |
289f6a14 | 2935 | }\r |
5630b930 | 2936 | #elif FF_CODE_PAGE < 900 /* In SBCS cfg */\r |
289f6a14 L |
2937 | wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */\r |
2938 | if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */\r | |
5630b930 L |
2939 | #else /* In DBCS cfg */\r |
2940 | wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Up-convert ==> ANSI/OEM code */\r | |
53668523 | 2941 | #endif\r |
53668523 L |
2942 | }\r |
2943 | \r | |
289f6a14 L |
2944 | if (wc >= 0x100) { /* Is this a DBC? */\r |
2945 | if (i >= ni - 1) { /* Field overflow? */\r | |
2946 | cf |= NS_LOSS | NS_LFN;\r | |
2947 | i = ni; continue; /* Next field */\r | |
53668523 | 2948 | }\r |
289f6a14 | 2949 | dp->fn[i++] = (BYTE)(wc >> 8); /* Put 1st byte */\r |
70702af1 | 2950 | } else { /* SBC */\r |
5630b930 | 2951 | if (wc == 0 || strchr("+,;=[]", (int)wc)) { /* Replace illegal characters for SFN */\r |
289f6a14 | 2952 | wc = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */\r |
53668523 | 2953 | } else {\r |
289f6a14 | 2954 | if (IsUpper(wc)) { /* ASCII upper case? */\r |
53668523 | 2955 | b |= 2;\r |
289f6a14 L |
2956 | }\r |
2957 | if (IsLower(wc)) { /* ASCII lower case? */\r | |
2958 | b |= 1; wc -= 0x20;\r | |
53668523 L |
2959 | }\r |
2960 | }\r | |
2961 | }\r | |
289f6a14 | 2962 | dp->fn[i++] = (BYTE)wc;\r |
53668523 L |
2963 | }\r |
2964 | \r | |
70702af1 | 2965 | if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */\r |
53668523 | 2966 | \r |
289f6a14 L |
2967 | if (ni == 8) b <<= 2; /* Shift capital flags if no extension */\r |
2968 | if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* LFN entry needs to be created if composite capitals */\r | |
2969 | if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */\r | |
2970 | if (b & 0x01) cf |= NS_EXT; /* NT flag (Extension has small capital letters only) */\r | |
2971 | if (b & 0x04) cf |= NS_BODY; /* NT flag (Body has small capital letters only) */\r | |
53668523 L |
2972 | }\r |
2973 | \r | |
289f6a14 | 2974 | dp->fn[NSFLAG] = cf; /* SFN is created into dp->fn[] */\r |
53668523 L |
2975 | \r |
2976 | return FR_OK;\r | |
2977 | \r | |
2978 | \r | |
289f6a14 | 2979 | #else /* FF_USE_LFN : Non-LFN configuration */\r |
5630b930 L |
2980 | BYTE c, d;\r |
2981 | BYTE *sfn;\r | |
53668523 L |
2982 | UINT ni, si, i;\r |
2983 | const char *p;\r | |
2984 | \r | |
2985 | /* Create file name in directory form */\r | |
70702af1 | 2986 | p = *path; sfn = dp->fn;\r |
5630b930 | 2987 | memset(sfn, ' ', 11);\r |
70702af1 | 2988 | si = i = 0; ni = 8;\r |
289f6a14 | 2989 | #if FF_FS_RPATH != 0\r |
53668523 L |
2990 | if (p[si] == '.') { /* Is this a dot entry? */\r |
2991 | for (;;) {\r | |
2992 | c = (BYTE)p[si++];\r | |
2993 | if (c != '.' || si >= 3) break;\r | |
2994 | sfn[i++] = c;\r | |
2995 | }\r | |
5630b930 L |
2996 | if (!IsSeparator(c) && c > ' ') return FR_INVALID_NAME;\r |
2997 | *path = p + si; /* Return pointer to the next segment */\r | |
70702af1 | 2998 | sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of the path */\r |
53668523 L |
2999 | return FR_OK;\r |
3000 | }\r | |
3001 | #endif\r | |
3002 | for (;;) {\r | |
289f6a14 | 3003 | c = (BYTE)p[si++]; /* Get a byte */\r |
70702af1 | 3004 | if (c <= ' ') break; /* Break if end of the path name */\r |
5630b930 L |
3005 | if (IsSeparator(c)) { /* Break if a separator is found */\r |
3006 | while (IsSeparator(p[si])) si++; /* Skip duplicated separator if exist */\r | |
70702af1 L |
3007 | break;\r |
3008 | }\r | |
289f6a14 L |
3009 | if (c == '.' || i >= ni) { /* End of body or field overflow? */\r |
3010 | if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Field overflow or invalid dot? */\r | |
3011 | i = 8; ni = 11; /* Enter file extension field */\r | |
70702af1 | 3012 | continue;\r |
53668523 | 3013 | }\r |
289f6a14 L |
3014 | #if FF_CODE_PAGE == 0\r |
3015 | if (ExCvt && c >= 0x80) { /* Is SBC extended character? */\r | |
3016 | c = ExCvt[c & 0x7F]; /* To upper SBC extended character */\r | |
3017 | }\r | |
3018 | #elif FF_CODE_PAGE < 900\r | |
3019 | if (c >= 0x80) { /* Is SBC extended character? */\r | |
3020 | c = ExCvt[c & 0x7F]; /* To upper SBC extended character */\r | |
53668523 | 3021 | }\r |
289f6a14 L |
3022 | #endif\r |
3023 | if (dbc_1st(c)) { /* Check if it is a DBC 1st byte */\r | |
53668523 | 3024 | d = (BYTE)p[si++]; /* Get 2nd byte */\r |
289f6a14 | 3025 | if (!dbc_2nd(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */\r |
53668523 L |
3026 | sfn[i++] = c;\r |
3027 | sfn[i++] = d;\r | |
70702af1 | 3028 | } else { /* SBC */\r |
5630b930 | 3029 | if (strchr("*+,:;<=>[]|\"\?\x7F", (int)c)) return FR_INVALID_NAME; /* Reject illegal chrs for SFN */\r |
70702af1 | 3030 | if (IsLower(c)) c -= 0x20; /* To upper */\r |
53668523 L |
3031 | sfn[i++] = c;\r |
3032 | }\r | |
3033 | }\r | |
5630b930 | 3034 | *path = &p[si]; /* Return pointer to the next segment */\r |
70702af1 | 3035 | if (i == 0) return FR_INVALID_NAME; /* Reject nul string */\r |
53668523 | 3036 | \r |
70702af1 | 3037 | if (sfn[0] == DDEM) sfn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */\r |
5630b930 | 3038 | sfn[NSFLAG] = (c <= ' ' || p[si] <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */\r |
53668523 L |
3039 | \r |
3040 | return FR_OK;\r | |
289f6a14 | 3041 | #endif /* FF_USE_LFN */\r |
53668523 L |
3042 | }\r |
3043 | \r | |
3044 | \r | |
3045 | \r | |
3046 | \r | |
3047 | /*-----------------------------------------------------------------------*/\r | |
3048 | /* Follow a file path */\r | |
3049 | /*-----------------------------------------------------------------------*/\r | |
3050 | \r | |
289f6a14 L |
3051 | static FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */\r |
3052 | DIR* dp, /* Directory object to return last directory and found object */\r | |
3053 | const TCHAR* path /* Full-path string to find a file or directory */\r | |
53668523 L |
3054 | )\r |
3055 | {\r | |
3056 | FRESULT res;\r | |
70702af1 | 3057 | BYTE ns;\r |
289f6a14 | 3058 | FATFS *fs = dp->obj.fs;\r |
53668523 L |
3059 | \r |
3060 | \r | |
289f6a14 | 3061 | #if FF_FS_RPATH != 0\r |
5630b930 L |
3062 | if (!IsSeparator(*path) && (FF_STR_VOLUME_ID != 2 || !IsTerminator(*path))) { /* Without heading separator */\r |
3063 | dp->obj.sclust = fs->cdir; /* Start at the current directory */\r | |
70702af1 L |
3064 | } else\r |
3065 | #endif\r | |
3066 | { /* With heading separator */\r | |
5630b930 L |
3067 | while (IsSeparator(*path)) path++; /* Strip separators */\r |
3068 | dp->obj.sclust = 0; /* Start from the root directory */\r | |
70702af1 | 3069 | }\r |
289f6a14 L |
3070 | #if FF_FS_EXFAT\r |
3071 | dp->obj.n_frag = 0; /* Invalidate last fragment counter of the object */\r | |
3072 | #if FF_FS_RPATH != 0\r | |
3073 | if (fs->fs_type == FS_EXFAT && dp->obj.sclust) { /* exFAT: Retrieve the sub-directory's status */\r | |
70702af1 L |
3074 | DIR dj;\r |
3075 | \r | |
289f6a14 L |
3076 | dp->obj.c_scl = fs->cdc_scl;\r |
3077 | dp->obj.c_size = fs->cdc_size;\r | |
3078 | dp->obj.c_ofs = fs->cdc_ofs;\r | |
3079 | res = load_obj_xdir(&dj, &dp->obj);\r | |
70702af1 | 3080 | if (res != FR_OK) return res;\r |
289f6a14 L |
3081 | dp->obj.objsize = ld_dword(fs->dirbuf + XDIR_FileSize);\r |
3082 | dp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2;\r | |
53668523 | 3083 | }\r |
289f6a14 | 3084 | #endif\r |
53668523 L |
3085 | #endif\r |
3086 | \r | |
3087 | if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */\r | |
70702af1 | 3088 | dp->fn[NSFLAG] = NS_NONAME;\r |
53668523 | 3089 | res = dir_sdi(dp, 0);\r |
70702af1 | 3090 | \r |
53668523 L |
3091 | } else { /* Follow path */\r |
3092 | for (;;) {\r | |
3093 | res = create_name(dp, &path); /* Get a segment name of the path */\r | |
3094 | if (res != FR_OK) break;\r | |
70702af1 | 3095 | res = dir_find(dp); /* Find an object with the segment name */\r |
7b78a5a2 | 3096 | ns = dp->fn[NSFLAG];\r |
53668523 L |
3097 | if (res != FR_OK) { /* Failed to find the object */\r |
3098 | if (res == FR_NO_FILE) { /* Object is not found */\r | |
289f6a14 | 3099 | if (FF_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */\r |
53668523 | 3100 | if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */\r |
70702af1 L |
3101 | dp->fn[NSFLAG] = NS_NONAME;\r |
3102 | res = FR_OK;\r | |
53668523 L |
3103 | } else { /* Could not find the object */\r |
3104 | if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */\r | |
3105 | }\r | |
3106 | }\r | |
3107 | break;\r | |
3108 | }\r | |
5630b930 | 3109 | if (ns & NS_LAST) break; /* Last segment matched. Function completed. */\r |
70702af1 | 3110 | /* Get into the sub-directory */\r |
5630b930 | 3111 | if (!(dp->obj.attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */\r |
53668523 L |
3112 | res = FR_NO_PATH; break;\r |
3113 | }\r | |
289f6a14 | 3114 | #if FF_FS_EXFAT\r |
5630b930 | 3115 | if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */\r |
289f6a14 L |
3116 | dp->obj.c_scl = dp->obj.sclust;\r |
3117 | dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;\r | |
3118 | dp->obj.c_ofs = dp->blk_ofs;\r | |
3119 | init_alloc_info(fs, &dp->obj); /* Open next directory */\r | |
70702af1 L |
3120 | } else\r |
3121 | #endif\r | |
3122 | {\r | |
289f6a14 | 3123 | dp->obj.sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */\r |
70702af1 | 3124 | }\r |
53668523 L |
3125 | }\r |
3126 | }\r | |
3127 | \r | |
3128 | return res;\r | |
3129 | }\r | |
3130 | \r | |
3131 | \r | |
3132 | \r | |
3133 | \r | |
3134 | /*-----------------------------------------------------------------------*/\r | |
3135 | /* Get logical drive number from path name */\r | |
3136 | /*-----------------------------------------------------------------------*/\r | |
3137 | \r | |
289f6a14 L |
3138 | static int get_ldnumber ( /* Returns logical drive number (-1:invalid drive number or null pointer) */\r |
3139 | const TCHAR** path /* Pointer to pointer to the path name */\r | |
53668523 L |
3140 | )\r |
3141 | {\r | |
5630b930 L |
3142 | const TCHAR *tp;\r |
3143 | const TCHAR *tt;\r | |
289f6a14 | 3144 | TCHAR tc;\r |
5630b930 L |
3145 | int i;\r |
3146 | int vol = -1;\r | |
289f6a14 | 3147 | #if FF_STR_VOLUME_ID /* Find string volume ID */\r |
70702af1 L |
3148 | const char *sp;\r |
3149 | char c;\r | |
70702af1 | 3150 | #endif\r |
53668523 | 3151 | \r |
289f6a14 L |
3152 | tt = tp = *path;\r |
3153 | if (!tp) return vol; /* Invalid path name? */\r | |
5630b930 L |
3154 | do { /* Find a colon in the path */\r |
3155 | tc = *tt++;\r | |
3156 | } while (!IsTerminator(tc) && tc != ':');\r | |
53668523 | 3157 | \r |
289f6a14 L |
3158 | if (tc == ':') { /* DOS/Windows style volume ID? */\r |
3159 | i = FF_VOLUMES;\r | |
3160 | if (IsDigit(*tp) && tp + 2 == tt) { /* Is there a numeric volume ID + colon? */\r | |
3161 | i = (int)*tp - '0'; /* Get the LD number */\r | |
3162 | }\r | |
3163 | #if FF_STR_VOLUME_ID == 1 /* Arbitrary string is enabled */\r | |
3164 | else {\r | |
3165 | i = 0;\r | |
3166 | do {\r | |
3167 | sp = VolumeStr[i]; tp = *path; /* This string volume ID and path name */\r | |
3168 | do { /* Compare the volume ID with path name */\r | |
3169 | c = *sp++; tc = *tp++;\r | |
3170 | if (IsLower(c)) c -= 0x20;\r | |
3171 | if (IsLower(tc)) tc -= 0x20;\r | |
3172 | } while (c && (TCHAR)c == tc);\r | |
3173 | } while ((c || tp != tt) && ++i < FF_VOLUMES); /* Repeat for each id until pattern match */\r | |
3174 | }\r | |
70702af1 | 3175 | #endif\r |
289f6a14 L |
3176 | if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */\r |
3177 | vol = i; /* Drive number */\r | |
3178 | *path = tt; /* Snip the drive prefix off */\r | |
3179 | }\r | |
3180 | return vol;\r | |
3181 | }\r | |
3182 | #if FF_STR_VOLUME_ID == 2 /* Unix style volume ID is enabled */\r | |
5630b930 L |
3183 | if (*tp == '/') { /* Is there a volume ID? */\r |
3184 | while (*(tp + 1) == '/') tp++; /* Skip duplicated separator */\r | |
289f6a14 L |
3185 | i = 0;\r |
3186 | do {\r | |
5630b930 | 3187 | tt = tp; sp = VolumeStr[i]; /* Path name and this string volume ID */\r |
289f6a14 | 3188 | do { /* Compare the volume ID with path name */\r |
5630b930 | 3189 | c = *sp++; tc = *(++tt);\r |
289f6a14 L |
3190 | if (IsLower(c)) c -= 0x20;\r |
3191 | if (IsLower(tc)) tc -= 0x20;\r | |
3192 | } while (c && (TCHAR)c == tc);\r | |
5630b930 | 3193 | } while ((c || (tc != '/' && !IsTerminator(tc))) && ++i < FF_VOLUMES); /* Repeat for each ID until pattern match */\r |
289f6a14 L |
3194 | if (i < FF_VOLUMES) { /* If a volume ID is found, get the drive number and strip it */\r |
3195 | vol = i; /* Drive number */\r | |
5630b930 | 3196 | *path = tt; /* Snip the drive prefix off */\r |
53668523 | 3197 | }\r |
5630b930 | 3198 | return vol;\r |
289f6a14 L |
3199 | }\r |
3200 | #endif\r | |
3201 | /* No drive prefix is found */\r | |
3202 | #if FF_FS_RPATH != 0\r | |
3203 | vol = CurrVol; /* Default drive is current drive */\r | |
53668523 | 3204 | #else\r |
289f6a14 | 3205 | vol = 0; /* Default drive is 0 */\r |
53668523 | 3206 | #endif\r |
289f6a14 | 3207 | return vol; /* Return the default drive */\r |
53668523 L |
3208 | }\r |
3209 | \r | |
3210 | \r | |
3211 | \r | |
3212 | \r | |
5630b930 L |
3213 | /*-----------------------------------------------------------------------*/\r |
3214 | /* GPT support functions */\r | |
3215 | /*-----------------------------------------------------------------------*/\r | |
3216 | \r | |
3217 | #if FF_LBA64\r | |
3218 | \r | |
3219 | /* Calculate CRC32 in byte-by-byte */\r | |
3220 | \r | |
3221 | static DWORD crc32 ( /* Returns next CRC value */\r | |
3222 | DWORD crc, /* Current CRC value */\r | |
3223 | BYTE d /* A byte to be processed */\r | |
3224 | )\r | |
3225 | {\r | |
3226 | BYTE b;\r | |
3227 | \r | |
3228 | \r | |
3229 | for (b = 1; b; b <<= 1) {\r | |
3230 | crc ^= (d & b) ? 1 : 0;\r | |
3231 | crc = (crc & 1) ? crc >> 1 ^ 0xEDB88320 : crc >> 1;\r | |
3232 | }\r | |
3233 | return crc;\r | |
3234 | }\r | |
3235 | \r | |
3236 | \r | |
3237 | /* Check validity of GPT header */\r | |
3238 | \r | |
3239 | static int test_gpt_header ( /* 0:Invalid, 1:Valid */\r | |
3240 | const BYTE* gpth /* Pointer to the GPT header */\r | |
3241 | )\r | |
3242 | {\r | |
3243 | UINT i;\r | |
3244 | DWORD bcc, hlen;\r | |
3245 | \r | |
3246 | \r | |
3247 | if (memcmp(gpth + GPTH_Sign, "EFI PART" "\0\0\1", 12)) return 0; /* Check signature and version (1.0) */\r | |
3248 | hlen = ld_dword(gpth + GPTH_Size); /* Check header size */\r | |
3249 | if (hlen < 92 || hlen > FF_MIN_SS) return 0;\r | |
3250 | for (i = 0, bcc = 0xFFFFFFFF; i < hlen; i++) { /* Check header BCC */\r | |
3251 | bcc = crc32(bcc, i - GPTH_Bcc < 4 ? 0 : gpth[i]);\r | |
3252 | }\r | |
3253 | if (~bcc != ld_dword(gpth + GPTH_Bcc)) return 0;\r | |
3254 | if (ld_dword(gpth + GPTH_PteSize) != SZ_GPTE) return 0; /* Table entry size (must be SZ_GPTE bytes) */\r | |
3255 | if (ld_dword(gpth + GPTH_PtNum) > 128) return 0; /* Table size (must be 128 entries or less) */\r | |
3256 | \r | |
3257 | return 1;\r | |
3258 | }\r | |
3259 | \r | |
3260 | #if !FF_FS_READONLY && FF_USE_MKFS\r | |
3261 | \r | |
3262 | /* Generate random value */\r | |
3263 | static DWORD make_rand (\r | |
3264 | DWORD seed, /* Seed value */\r | |
3265 | BYTE *buff, /* Output buffer */\r | |
3266 | UINT n /* Data length */\r | |
3267 | )\r | |
3268 | {\r | |
3269 | UINT r;\r | |
3270 | \r | |
3271 | \r | |
3272 | if (seed == 0) seed = 1;\r | |
3273 | do {\r | |
3274 | for (r = 0; r < 8; r++) seed = seed & 1 ? seed >> 1 ^ 0xA3000000 : seed >> 1; /* Shift 8 bits the 32-bit LFSR */\r | |
3275 | *buff++ = (BYTE)seed;\r | |
3276 | } while (--n);\r | |
3277 | return seed;\r | |
3278 | }\r | |
3279 | \r | |
3280 | #endif\r | |
3281 | #endif\r | |
3282 | \r | |
3283 | \r | |
3284 | \r | |
53668523 | 3285 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 3286 | /* Load a sector and check if it is an FAT VBR */\r |
53668523 L |
3287 | /*-----------------------------------------------------------------------*/\r |
3288 | \r | |
5630b930 L |
3289 | /* Check what the sector is */\r |
3290 | \r | |
3291 | static UINT check_fs ( /* 0:FAT/FAT32 VBR, 1:exFAT VBR, 2:Not FAT and valid BS, 3:Not FAT and invalid BS, 4:Disk error */\r | |
289f6a14 | 3292 | FATFS* fs, /* Filesystem object */\r |
5630b930 | 3293 | LBA_t sect /* Sector to load and check if it is an FAT-VBR or not */\r |
53668523 L |
3294 | )\r |
3295 | {\r | |
5630b930 L |
3296 | WORD w, sign;\r |
3297 | BYTE b;\r | |
53668523 | 3298 | \r |
53668523 | 3299 | \r |
5630b930 L |
3300 | fs->wflag = 0; fs->winsect = (LBA_t)0 - 1; /* Invaidate window */\r |
3301 | if (move_window(fs, sect) != FR_OK) return 4; /* Load the boot sector */\r | |
3302 | sign = ld_word(fs->win + BS_55AA);\r | |
289f6a14 | 3303 | #if FF_FS_EXFAT\r |
5630b930 L |
3304 | if (sign == 0xAA55 && !memcmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; /* It is an exFAT VBR */\r |
3305 | #endif\r | |
3306 | b = fs->win[BS_JmpBoot];\r | |
3307 | if (b == 0xEB || b == 0xE9 || b == 0xE8) { /* Valid JumpBoot code? (short jump, near jump or near call) */\r | |
3308 | if (sign == 0xAA55 && !memcmp(fs->win + BS_FilSysType32, "FAT32 ", 8)) {\r | |
3309 | return 0; /* It is an FAT32 VBR */\r | |
3310 | }\r | |
3311 | /* FAT volumes formatted with early MS-DOS lack BS_55AA and BS_FilSysType, so FAT VBR needs to be identified without them. */\r | |
3312 | w = ld_word(fs->win + BPB_BytsPerSec);\r | |
3313 | b = fs->win[BPB_SecPerClus];\r | |
3314 | if ((w & (w - 1)) == 0 && w >= FF_MIN_SS && w <= FF_MAX_SS /* Properness of sector size (512-4096 and 2^n) */\r | |
3315 | && b != 0 && (b & (b - 1)) == 0 /* Properness of cluster size (2^n) */\r | |
3316 | && ld_word(fs->win + BPB_RsvdSecCnt) != 0 /* Properness of reserved sectors (MNBZ) */\r | |
3317 | && (UINT)fs->win[BPB_NumFATs] - 1 <= 1 /* Properness of FATs (1 or 2) */\r | |
3318 | && ld_word(fs->win + BPB_RootEntCnt) != 0 /* Properness of root dir entries (MNBZ) */\r | |
3319 | && (ld_word(fs->win + BPB_TotSec16) >= 128 || ld_dword(fs->win + BPB_TotSec32) >= 0x10000) /* Properness of volume sectors (>=128) */\r | |
3320 | && ld_word(fs->win + BPB_FATSz16) != 0) { /* Properness of FAT size (MNBZ) */\r | |
3321 | return 0; /* It can be presumed an FAT VBR */\r | |
3322 | }\r | |
3323 | }\r | |
3324 | return sign == 0xAA55 ? 2 : 3; /* Not an FAT VBR (valid or invalid BS) */\r | |
3325 | }\r | |
3326 | \r | |
3327 | \r | |
3328 | /* Find an FAT volume */\r | |
3329 | /* (It supports only generic partitioning rules, MBR, GPT and SFD) */\r | |
3330 | \r | |
3331 | static UINT find_volume ( /* Returns BS status found in the hosting drive */\r | |
3332 | FATFS* fs, /* Filesystem object */\r | |
3333 | UINT part /* Partition to fined = 0:find as SFD and partitions, >0:forced partition number */\r | |
3334 | )\r | |
3335 | {\r | |
3336 | UINT fmt, i;\r | |
3337 | DWORD mbr_pt[4];\r | |
3338 | \r | |
3339 | \r | |
3340 | fmt = check_fs(fs, 0); /* Load sector 0 and check if it is an FAT VBR as SFD format */\r | |
3341 | if (fmt != 2 && (fmt >= 3 || part == 0)) return fmt; /* Returns if it is an FAT VBR as auto scan, not a BS or disk error */\r | |
3342 | \r | |
3343 | /* Sector 0 is not an FAT VBR or forced partition number wants a partition */\r | |
3344 | \r | |
3345 | #if FF_LBA64\r | |
3346 | if (fs->win[MBR_Table + PTE_System] == 0xEE) { /* GPT protective MBR? */\r | |
3347 | DWORD n_ent, v_ent, ofs;\r | |
3348 | QWORD pt_lba;\r | |
3349 | \r | |
3350 | if (move_window(fs, 1) != FR_OK) return 4; /* Load GPT header sector (next to MBR) */\r | |
3351 | if (!test_gpt_header(fs->win)) return 3; /* Check if GPT header is valid */\r | |
3352 | n_ent = ld_dword(fs->win + GPTH_PtNum); /* Number of entries */\r | |
3353 | pt_lba = ld_qword(fs->win + GPTH_PtOfs); /* Table location */\r | |
3354 | for (v_ent = i = 0; i < n_ent; i++) { /* Find FAT partition */\r | |
3355 | if (move_window(fs, pt_lba + i * SZ_GPTE / SS(fs)) != FR_OK) return 4; /* PT sector */\r | |
3356 | ofs = i * SZ_GPTE % SS(fs); /* Offset in the sector */\r | |
3357 | if (!memcmp(fs->win + ofs + GPTE_PtGuid, GUID_MS_Basic, 16)) { /* MS basic data partition? */\r | |
3358 | v_ent++;\r | |
3359 | fmt = check_fs(fs, ld_qword(fs->win + ofs + GPTE_FstLba)); /* Load VBR and check status */\r | |
3360 | if (part == 0 && fmt <= 1) return fmt; /* Auto search (valid FAT volume found first) */\r | |
3361 | if (part != 0 && v_ent == part) return fmt; /* Forced partition order (regardless of it is valid or not) */\r | |
3362 | }\r | |
3363 | }\r | |
3364 | return 3; /* Not found */\r | |
3365 | }\r | |
70702af1 | 3366 | #endif\r |
5630b930 L |
3367 | if (FF_MULTI_PARTITION && part > 4) return 3; /* MBR has 4 partitions max */\r |
3368 | for (i = 0; i < 4; i++) { /* Load partition offset in the MBR */\r | |
3369 | mbr_pt[i] = ld_dword(fs->win + MBR_Table + i * SZ_PTE + PTE_StLba);\r | |
289f6a14 | 3370 | }\r |
5630b930 L |
3371 | i = part ? part - 1 : 0; /* Table index to find first */\r |
3372 | do { /* Find an FAT volume */\r | |
3373 | fmt = mbr_pt[i] ? check_fs(fs, mbr_pt[i]) : 3; /* Check if the partition is FAT */\r | |
3374 | } while (part == 0 && fmt >= 2 && ++i < 4);\r | |
3375 | return fmt;\r | |
53668523 L |
3376 | }\r |
3377 | \r | |
3378 | \r | |
3379 | \r | |
3380 | \r | |
3381 | /*-----------------------------------------------------------------------*/\r | |
289f6a14 | 3382 | /* Determine logical drive number and mount the volume if needed */\r |
53668523 L |
3383 | /*-----------------------------------------------------------------------*/\r |
3384 | \r | |
5630b930 | 3385 | static FRESULT mount_volume ( /* FR_OK(0): successful, !=0: an error occurred */\r |
289f6a14 L |
3386 | const TCHAR** path, /* Pointer to pointer to the path name (drive number) */\r |
3387 | FATFS** rfs, /* Pointer to pointer to the found filesystem object */\r | |
5630b930 | 3388 | BYTE mode /* Desiered access mode to check write protection */\r |
53668523 L |
3389 | )\r |
3390 | {\r | |
53668523 | 3391 | int vol;\r |
5630b930 | 3392 | FATFS *fs;\r |
53668523 | 3393 | DSTATUS stat;\r |
5630b930 L |
3394 | LBA_t bsect;\r |
3395 | DWORD tsect, sysect, fasize, nclst, szbfat;\r | |
53668523 | 3396 | WORD nrsv;\r |
5630b930 | 3397 | UINT fmt;\r |
53668523 L |
3398 | \r |
3399 | \r | |
70702af1 | 3400 | /* Get logical drive number */\r |
53668523 L |
3401 | *rfs = 0;\r |
3402 | vol = get_ldnumber(path);\r | |
3403 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
3404 | \r | |
289f6a14 L |
3405 | /* Check if the filesystem object is valid or not */\r |
3406 | fs = FatFs[vol]; /* Get pointer to the filesystem object */\r | |
3407 | if (!fs) return FR_NOT_ENABLED; /* Is the filesystem object available? */\r | |
3408 | #if FF_FS_REENTRANT\r | |
5630b930 | 3409 | if (!lock_volume(fs, 1)) return FR_TIMEOUT; /* Lock the volume, and system if needed */\r |
289f6a14 L |
3410 | #endif\r |
3411 | *rfs = fs; /* Return pointer to the filesystem object */\r | |
53668523 | 3412 | \r |
70702af1 | 3413 | mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */\r |
289f6a14 L |
3414 | if (fs->fs_type != 0) { /* If the volume has been mounted */\r |
3415 | stat = disk_status(fs->pdrv);\r | |
53668523 | 3416 | if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */\r |
289f6a14 | 3417 | if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */\r |
53668523 | 3418 | return FR_WRITE_PROTECTED;\r |
70702af1 | 3419 | }\r |
5630b930 | 3420 | return FR_OK; /* The filesystem object is already valid */\r |
53668523 L |
3421 | }\r |
3422 | }\r | |
3423 | \r | |
289f6a14 | 3424 | /* The filesystem object is not valid. */\r |
5630b930 | 3425 | /* Following code attempts to mount the volume. (find an FAT volume, analyze the BPB and initialize the filesystem object) */\r |
53668523 | 3426 | \r |
5630b930 L |
3427 | fs->fs_type = 0; /* Invalidate the filesystem object */\r |
3428 | stat = disk_initialize(fs->pdrv); /* Initialize the volume hosting physical drive */\r | |
70702af1 | 3429 | if (stat & STA_NOINIT) { /* Check if the initialization succeeded */\r |
53668523 | 3430 | return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */\r |
70702af1 | 3431 | }\r |
289f6a14 | 3432 | if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */\r |
53668523 | 3433 | return FR_WRITE_PROTECTED;\r |
70702af1 | 3434 | }\r |
289f6a14 L |
3435 | #if FF_MAX_SS != FF_MIN_SS /* Get sector size (multiple sector size cfg only) */\r |
3436 | if (disk_ioctl(fs->pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR;\r | |
3437 | if (SS(fs) > FF_MAX_SS || SS(fs) < FF_MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR;\r | |
53668523 | 3438 | #endif\r |
289f6a14 | 3439 | \r |
5630b930 L |
3440 | /* Find an FAT volume on the hosting drive */\r |
3441 | fmt = find_volume(fs, LD2PT(vol));\r | |
3442 | if (fmt == 4) return FR_DISK_ERR; /* An error occurred in the disk I/O layer */\r | |
70702af1 | 3443 | if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */\r |
5630b930 | 3444 | bsect = fs->winsect; /* Volume offset in the hosting physical drive */\r |
53668523 | 3445 | \r |
289f6a14 | 3446 | /* An FAT volume is found (bsect). Following code initializes the filesystem object */\r |
53668523 | 3447 | \r |
289f6a14 | 3448 | #if FF_FS_EXFAT\r |
70702af1 L |
3449 | if (fmt == 1) {\r |
3450 | QWORD maxlba;\r | |
5630b930 | 3451 | DWORD so, cv, bcl, i;\r |
70702af1 L |
3452 | \r |
3453 | for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */\r | |
3454 | if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM;\r | |
3455 | \r | |
289f6a14 | 3456 | if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT version (must be version 1.0) */\r |
70702af1 | 3457 | \r |
289f6a14 | 3458 | if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */\r |
70702af1 | 3459 | return FR_NO_FILESYSTEM;\r |
289f6a14 | 3460 | }\r |
70702af1 | 3461 | \r |
5630b930 L |
3462 | maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA of the volume + 1 */\r |
3463 | if (!FF_LBA64 && maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be accessed in 32-bit LBA) */\r | |
70702af1 L |
3464 | \r |
3465 | fs->fsize = ld_dword(fs->win + BPB_FatSzEx); /* Number of sectors per FAT */\r | |
3466 | \r | |
3467 | fs->n_fats = fs->win[BPB_NumFATsEx]; /* Number of FATs */\r | |
3468 | if (fs->n_fats != 1) return FR_NO_FILESYSTEM; /* (Supports only 1 FAT) */\r | |
3469 | \r | |
3470 | fs->csize = 1 << fs->win[BPB_SecPerClusEx]; /* Cluster size */\r | |
5630b930 | 3471 | if (fs->csize == 0) return FR_NO_FILESYSTEM; /* (Must be 1..32768 sectors) */\r |
70702af1 L |
3472 | \r |
3473 | nclst = ld_dword(fs->win + BPB_NumClusEx); /* Number of clusters */\r | |
3474 | if (nclst > MAX_EXFAT) return FR_NO_FILESYSTEM; /* (Too many clusters) */\r | |
3475 | fs->n_fatent = nclst + 2;\r | |
53668523 | 3476 | \r |
70702af1 L |
3477 | /* Boundaries and Limits */\r |
3478 | fs->volbase = bsect;\r | |
3479 | fs->database = bsect + ld_dword(fs->win + BPB_DataOfsEx);\r | |
3480 | fs->fatbase = bsect + ld_dword(fs->win + BPB_FatOfsEx);\r | |
5630b930 | 3481 | if (maxlba < (QWORD)fs->database + nclst * fs->csize) return FR_NO_FILESYSTEM; /* (Volume size must not be smaller than the size required) */\r |
70702af1 L |
3482 | fs->dirbase = ld_dword(fs->win + BPB_RootClusEx);\r |
3483 | \r | |
5630b930 L |
3484 | /* Get bitmap location and check if it is contiguous (implementation assumption) */\r |
3485 | so = i = 0;\r | |
3486 | for (;;) { /* Find the bitmap entry in the root directory (in only first cluster) */\r | |
3487 | if (i == 0) {\r | |
3488 | if (so >= fs->csize) return FR_NO_FILESYSTEM; /* Not found? */\r | |
3489 | if (move_window(fs, clst2sect(fs, (DWORD)fs->dirbase) + so) != FR_OK) return FR_DISK_ERR;\r | |
3490 | so++;\r | |
3491 | }\r | |
3492 | if (fs->win[i] == ET_BITMAP) break; /* Is it a bitmap entry? */\r | |
3493 | i = (i + SZDIRE) % SS(fs); /* Next entry */\r | |
3494 | }\r | |
3495 | bcl = ld_dword(fs->win + i + 20); /* Bitmap cluster */\r | |
3496 | if (bcl < 2 || bcl >= fs->n_fatent) return FR_NO_FILESYSTEM; /* (Wrong cluster#) */\r | |
3497 | fs->bitbase = fs->database + fs->csize * (bcl - 2); /* Bitmap sector */\r | |
3498 | for (;;) { /* Check if bitmap is contiguous */\r | |
3499 | if (move_window(fs, fs->fatbase + bcl / (SS(fs) / 4)) != FR_OK) return FR_DISK_ERR;\r | |
3500 | cv = ld_dword(fs->win + bcl % (SS(fs) / 4) * 4);\r | |
3501 | if (cv == 0xFFFFFFFF) break; /* Last link? */\r | |
3502 | if (cv != ++bcl) return FR_NO_FILESYSTEM; /* Fragmented bitmap? */\r | |
70702af1 | 3503 | }\r |
5630b930 | 3504 | \r |
289f6a14 | 3505 | #if !FF_FS_READONLY\r |
70702af1 L |
3506 | fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */\r |
3507 | #endif\r | |
3508 | fmt = FS_EXFAT; /* FAT sub-type */\r | |
3509 | } else\r | |
289f6a14 | 3510 | #endif /* FF_FS_EXFAT */\r |
70702af1 L |
3511 | {\r |
3512 | if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */\r | |
3513 | \r | |
289f6a14 | 3514 | fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */\r |
70702af1 L |
3515 | if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32);\r |
3516 | fs->fsize = fasize;\r | |
3517 | \r | |
289f6a14 | 3518 | fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */\r |
70702af1 | 3519 | if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */\r |
289f6a14 | 3520 | fasize *= fs->n_fats; /* Number of sectors for FAT area */\r |
70702af1 | 3521 | \r |
289f6a14 | 3522 | fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */\r |
70702af1 L |
3523 | if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */\r |
3524 | \r | |
3525 | fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */\r | |
3526 | if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */\r | |
3527 | \r | |
289f6a14 | 3528 | tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */\r |
70702af1 L |
3529 | if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32);\r |
3530 | \r | |
289f6a14 L |
3531 | nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */\r |
3532 | if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */\r | |
70702af1 L |
3533 | \r |
3534 | /* Determine the FAT sub type */\r | |
3535 | sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + DIR */\r | |
289f6a14 L |
3536 | if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */\r |
3537 | nclst = (tsect - sysect) / fs->csize; /* Number of clusters */\r | |
3538 | if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */\r | |
3539 | fmt = 0;\r | |
3540 | if (nclst <= MAX_FAT32) fmt = FS_FAT32;\r | |
70702af1 L |
3541 | if (nclst <= MAX_FAT16) fmt = FS_FAT16;\r |
3542 | if (nclst <= MAX_FAT12) fmt = FS_FAT12;\r | |
289f6a14 | 3543 | if (fmt == 0) return FR_NO_FILESYSTEM;\r |
70702af1 L |
3544 | \r |
3545 | /* Boundaries and Limits */\r | |
289f6a14 L |
3546 | fs->n_fatent = nclst + 2; /* Number of FAT entries */\r |
3547 | fs->volbase = bsect; /* Volume start sector */\r | |
3548 | fs->fatbase = bsect + nrsv; /* FAT start sector */\r | |
3549 | fs->database = bsect + sysect; /* Data start sector */\r | |
70702af1 L |
3550 | if (fmt == FS_FAT32) {\r |
3551 | if (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */\r | |
289f6a14 | 3552 | if (fs->n_rootdir != 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */\r |
70702af1 | 3553 | fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */\r |
289f6a14 | 3554 | szbfat = fs->n_fatent * 4; /* (Needed FAT size) */\r |
70702af1 | 3555 | } else {\r |
289f6a14 L |
3556 | if (fs->n_rootdir == 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */\r |
3557 | fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */\r | |
3558 | szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */\r | |
70702af1 L |
3559 | fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);\r |
3560 | }\r | |
3561 | if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */\r | |
53668523 | 3562 | \r |
289f6a14 L |
3563 | #if !FF_FS_READONLY\r |
3564 | /* Get FSInfo if available */\r | |
70702af1 L |
3565 | fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */\r |
3566 | fs->fsi_flag = 0x80;\r | |
289f6a14 L |
3567 | #if (FF_FS_NOFSINFO & 3) != 3\r |
3568 | if (fmt == FS_FAT32 /* Allow to update FSInfo only if BPB_FSInfo32 == 1 */\r | |
70702af1 L |
3569 | && ld_word(fs->win + BPB_FSInfo32) == 1\r |
3570 | && move_window(fs, bsect + 1) == FR_OK)\r | |
53668523 | 3571 | {\r |
70702af1 | 3572 | fs->fsi_flag = 0;\r |
289f6a14 | 3573 | if (ld_word(fs->win + BS_55AA) == 0xAA55 /* Load FSInfo data if available */\r |
70702af1 L |
3574 | && ld_dword(fs->win + FSI_LeadSig) == 0x41615252\r |
3575 | && ld_dword(fs->win + FSI_StrucSig) == 0x61417272)\r | |
3576 | {\r | |
289f6a14 | 3577 | #if (FF_FS_NOFSINFO & 1) == 0\r |
70702af1 | 3578 | fs->free_clst = ld_dword(fs->win + FSI_Free_Count);\r |
53668523 | 3579 | #endif\r |
289f6a14 | 3580 | #if (FF_FS_NOFSINFO & 2) == 0\r |
70702af1 | 3581 | fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free);\r |
53668523 | 3582 | #endif\r |
70702af1 | 3583 | }\r |
53668523 | 3584 | }\r |
289f6a14 L |
3585 | #endif /* (FF_FS_NOFSINFO & 3) != 3 */\r |
3586 | #endif /* !FF_FS_READONLY */\r | |
53668523 | 3587 | }\r |
70702af1 | 3588 | \r |
5630b930 | 3589 | fs->fs_type = (BYTE)fmt;/* FAT sub-type (the filesystem object gets valid) */\r |
289f6a14 L |
3590 | fs->id = ++Fsid; /* Volume mount ID */\r |
3591 | #if FF_USE_LFN == 1\r | |
70702af1 | 3592 | fs->lfnbuf = LfnBuf; /* Static LFN working buffer */\r |
289f6a14 L |
3593 | #if FF_FS_EXFAT\r |
3594 | fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */\r | |
70702af1 | 3595 | #endif\r |
53668523 | 3596 | #endif\r |
289f6a14 L |
3597 | #if FF_FS_RPATH != 0\r |
3598 | fs->cdir = 0; /* Initialize current directory */\r | |
70702af1 | 3599 | #endif\r |
5630b930 L |
3600 | #if FF_FS_LOCK /* Clear file lock semaphores */\r |
3601 | clear_share(fs);\r | |
53668523 | 3602 | #endif\r |
53668523 L |
3603 | return FR_OK;\r |
3604 | }\r | |
3605 | \r | |
3606 | \r | |
3607 | \r | |
3608 | \r | |
3609 | /*-----------------------------------------------------------------------*/\r | |
3610 | /* Check if the file/directory object is valid or not */\r | |
3611 | /*-----------------------------------------------------------------------*/\r | |
3612 | \r | |
289f6a14 | 3613 | static FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */\r |
5630b930 | 3614 | FFOBJID* obj, /* Pointer to the FFOBJID, the 1st member in the FIL/DIR structure, to check validity */\r |
289f6a14 | 3615 | FATFS** rfs /* Pointer to pointer to the owner filesystem object to return */\r |
53668523 L |
3616 | )\r |
3617 | {\r | |
289f6a14 | 3618 | FRESULT res = FR_INVALID_OBJECT;\r |
53668523 | 3619 | \r |
53668523 | 3620 | \r |
289f6a14 L |
3621 | if (obj && obj->fs && obj->fs->fs_type && obj->id == obj->fs->id) { /* Test if the object is valid */\r |
3622 | #if FF_FS_REENTRANT\r | |
5630b930 L |
3623 | if (lock_volume(obj->fs, 0)) { /* Take a grant to access the volume */\r |
3624 | if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the hosting phsical drive is kept initialized */\r | |
289f6a14 L |
3625 | res = FR_OK;\r |
3626 | } else {\r | |
5630b930 | 3627 | unlock_volume(obj->fs, FR_OK); /* Invalidated volume, abort to access */\r |
289f6a14 | 3628 | }\r |
5630b930 | 3629 | } else { /* Could not take */\r |
289f6a14 L |
3630 | res = FR_TIMEOUT;\r |
3631 | }\r | |
3632 | #else\r | |
5630b930 | 3633 | if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the hosting phsical drive is kept initialized */\r |
289f6a14 L |
3634 | res = FR_OK;\r |
3635 | }\r | |
3636 | #endif\r | |
70702af1 | 3637 | }\r |
5630b930 | 3638 | *rfs = (res == FR_OK) ? obj->fs : 0; /* Return corresponding filesystem object if it is valid */\r |
70702af1 | 3639 | return res;\r |
53668523 L |
3640 | }\r |
3641 | \r | |
3642 | \r | |
3643 | \r | |
3644 | \r | |
70702af1 | 3645 | /*---------------------------------------------------------------------------\r |
53668523 | 3646 | \r |
70702af1 | 3647 | Public Functions (FatFs API)\r |
53668523 | 3648 | \r |
70702af1 | 3649 | ----------------------------------------------------------------------------*/\r |
53668523 L |
3650 | \r |
3651 | \r | |
3652 | \r | |
3653 | /*-----------------------------------------------------------------------*/\r | |
3654 | /* Mount/Unmount a Logical Drive */\r | |
3655 | /*-----------------------------------------------------------------------*/\r | |
3656 | \r | |
3657 | FRESULT f_mount (\r | |
5630b930 | 3658 | FATFS* fs, /* Pointer to the filesystem object to be registered (NULL:unmount)*/\r |
53668523 | 3659 | const TCHAR* path, /* Logical drive number to be mounted/unmounted */\r |
5630b930 | 3660 | BYTE opt /* Mount option: 0=Do not mount (delayed mount), 1=Mount immediately */\r |
53668523 L |
3661 | )\r |
3662 | {\r | |
3663 | FATFS *cfs;\r | |
3664 | int vol;\r | |
3665 | FRESULT res;\r | |
3666 | const TCHAR *rp = path;\r | |
3667 | \r | |
3668 | \r | |
5630b930 | 3669 | /* Get volume ID (logical drive number) */\r |
53668523 L |
3670 | vol = get_ldnumber(&rp);\r |
3671 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
5630b930 | 3672 | cfs = FatFs[vol]; /* Pointer to the filesystem object of the volume */\r |
53668523 | 3673 | \r |
5630b930 L |
3674 | if (cfs) { /* Unregister current filesystem object if regsitered */\r |
3675 | FatFs[vol] = 0;\r | |
3676 | #if FF_FS_LOCK\r | |
3677 | clear_share(cfs);\r | |
53668523 | 3678 | #endif\r |
5630b930 L |
3679 | #if FF_FS_REENTRANT /* Discard mutex of the current volume */\r |
3680 | ff_mutex_delete(vol);\r | |
53668523 | 3681 | #endif\r |
5630b930 | 3682 | cfs->fs_type = 0; /* Invalidate the filesystem object to be unregistered */\r |
53668523 L |
3683 | }\r |
3684 | \r | |
5630b930 L |
3685 | if (fs) { /* Register new filesystem object */\r |
3686 | fs->pdrv = LD2PD(vol); /* Volume hosting physical drive */\r | |
3687 | #if FF_FS_REENTRANT /* Create a volume mutex */\r | |
3688 | fs->ldrv = (BYTE)vol; /* Owner volume ID */\r | |
3689 | if (!ff_mutex_create(vol)) return FR_INT_ERR;\r | |
3690 | #if FF_FS_LOCK\r | |
3691 | if (SysLock == 0) { /* Create a system mutex if needed */\r | |
3692 | if (!ff_mutex_create(FF_VOLUMES)) {\r | |
3693 | ff_mutex_delete(vol);\r | |
3694 | return FR_INT_ERR;\r | |
3695 | }\r | |
3696 | SysLock = 1; /* System mutex is ready */\r | |
3697 | }\r | |
3698 | #endif\r | |
53668523 | 3699 | #endif\r |
5630b930 L |
3700 | fs->fs_type = 0; /* Invalidate the new filesystem object */\r |
3701 | FatFs[vol] = fs; /* Register new fs object */\r | |
53668523 | 3702 | }\r |
53668523 | 3703 | \r |
5630b930 | 3704 | if (opt == 0) return FR_OK; /* Do not mount now, it will be mounted in subsequent file functions */\r |
53668523 | 3705 | \r |
5630b930 | 3706 | res = mount_volume(&path, &fs, 0); /* Force mounted the volume */\r |
53668523 L |
3707 | LEAVE_FF(fs, res);\r |
3708 | }\r | |
3709 | \r | |
3710 | \r | |
3711 | \r | |
3712 | \r | |
3713 | /*-----------------------------------------------------------------------*/\r | |
3714 | /* Open or Create a File */\r | |
3715 | /*-----------------------------------------------------------------------*/\r | |
3716 | \r | |
3717 | FRESULT f_open (\r | |
3718 | FIL* fp, /* Pointer to the blank file object */\r | |
3719 | const TCHAR* path, /* Pointer to the file name */\r | |
5630b930 | 3720 | BYTE mode /* Access mode and open mode flags */\r |
53668523 L |
3721 | )\r |
3722 | {\r | |
3723 | FRESULT res;\r | |
3724 | DIR dj;\r | |
70702af1 | 3725 | FATFS *fs;\r |
289f6a14 | 3726 | #if !FF_FS_READONLY\r |
5630b930 L |
3727 | DWORD cl, bcs, clst, tm;\r |
3728 | LBA_t sc;\r | |
70702af1 L |
3729 | FSIZE_t ofs;\r |
3730 | #endif\r | |
3731 | DEF_NAMBUF\r | |
53668523 L |
3732 | \r |
3733 | \r | |
3734 | if (!fp) return FR_INVALID_OBJECT;\r | |
53668523 | 3735 | \r |
289f6a14 L |
3736 | /* Get logical drive number */\r |
3737 | mode &= FF_FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND;\r | |
5630b930 | 3738 | res = mount_volume(&path, &fs, mode);\r |
53668523 | 3739 | if (res == FR_OK) {\r |
70702af1 L |
3740 | dj.obj.fs = fs;\r |
3741 | INIT_NAMBUF(fs);\r | |
53668523 | 3742 | res = follow_path(&dj, path); /* Follow the file path */\r |
289f6a14 | 3743 | #if !FF_FS_READONLY /* Read/Write configuration */\r |
53668523 | 3744 | if (res == FR_OK) {\r |
70702af1 | 3745 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */\r |
53668523 | 3746 | res = FR_INVALID_NAME;\r |
70702af1 | 3747 | }\r |
5630b930 | 3748 | #if FF_FS_LOCK\r |
70702af1 | 3749 | else {\r |
5630b930 | 3750 | res = chk_share(&dj, (mode & ~FA_READ) ? 1 : 0); /* Check if the file can be used */\r |
70702af1 | 3751 | }\r |
53668523 L |
3752 | #endif\r |
3753 | }\r | |
3754 | /* Create or Open a file */\r | |
3755 | if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {\r | |
53668523 | 3756 | if (res != FR_OK) { /* No file, create new */\r |
289f6a14 | 3757 | if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */\r |
5630b930 L |
3758 | #if FF_FS_LOCK\r |
3759 | res = enq_share() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;\r | |
53668523 L |
3760 | #else\r |
3761 | res = dir_register(&dj);\r | |
3762 | #endif\r | |
289f6a14 | 3763 | }\r |
53668523 | 3764 | mode |= FA_CREATE_ALWAYS; /* File is created */\r |
53668523 | 3765 | }\r |
289f6a14 | 3766 | else { /* Any object with the same name is already existing */\r |
70702af1 | 3767 | if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or DIR) */\r |
53668523 L |
3768 | res = FR_DENIED;\r |
3769 | } else {\r | |
70702af1 | 3770 | if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */\r |
53668523 L |
3771 | }\r |
3772 | }\r | |
289f6a14 L |
3773 | if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate the file if overwrite mode */\r |
3774 | #if FF_FS_EXFAT\r | |
70702af1 L |
3775 | if (fs->fs_type == FS_EXFAT) {\r |
3776 | /* Get current allocation info */\r | |
3777 | fp->obj.fs = fs;\r | |
289f6a14 L |
3778 | init_alloc_info(fs, &fp->obj);\r |
3779 | /* Set directory entry block initial state */\r | |
5630b930 L |
3780 | memset(fs->dirbuf + 2, 0, 30); /* Clear 85 entry except for NumSec */\r |
3781 | memset(fs->dirbuf + 38, 0, 26); /* Clear C0 entry except for NumName and NameHash */\r | |
289f6a14 L |
3782 | fs->dirbuf[XDIR_Attr] = AM_ARC;\r |
3783 | st_dword(fs->dirbuf + XDIR_CrtTime, GET_FATTIME());\r | |
70702af1 L |
3784 | fs->dirbuf[XDIR_GenFlags] = 1;\r |
3785 | res = store_xdir(&dj);\r | |
289f6a14 | 3786 | if (res == FR_OK && fp->obj.sclust != 0) { /* Remove the cluster chain if exist */\r |
70702af1 L |
3787 | res = remove_chain(&fp->obj, fp->obj.sclust, 0);\r |
3788 | fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */\r | |
3789 | }\r | |
3790 | } else\r | |
3791 | #endif\r | |
3792 | {\r | |
289f6a14 | 3793 | /* Set directory entry initial state */\r |
5630b930 L |
3794 | tm = GET_FATTIME(); /* Set created time */\r |
3795 | st_dword(dj.dir + DIR_CrtTime, tm);\r | |
3796 | st_dword(dj.dir + DIR_ModTime, tm);\r | |
289f6a14 | 3797 | cl = ld_clust(fs, dj.dir); /* Get current cluster chain */\r |
70702af1 | 3798 | dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */\r |
70702af1 L |
3799 | st_clust(fs, dj.dir, 0); /* Reset file allocation info */\r |
3800 | st_dword(dj.dir + DIR_FileSize, 0);\r | |
3801 | fs->wflag = 1;\r | |
289f6a14 | 3802 | if (cl != 0) { /* Remove the cluster chain if exist */\r |
5630b930 | 3803 | sc = fs->winsect;\r |
70702af1 L |
3804 | res = remove_chain(&dj.obj, cl, 0);\r |
3805 | if (res == FR_OK) {\r | |
5630b930 | 3806 | res = move_window(fs, sc);\r |
70702af1 L |
3807 | fs->last_clst = cl - 1; /* Reuse the cluster hole */\r |
3808 | }\r | |
53668523 L |
3809 | }\r |
3810 | }\r | |
3811 | }\r | |
3812 | }\r | |
3813 | else { /* Open an existing file */\r | |
289f6a14 L |
3814 | if (res == FR_OK) { /* Is the object exsiting? */\r |
3815 | if (dj.obj.attr & AM_DIR) { /* File open against a directory */\r | |
53668523 L |
3816 | res = FR_NO_FILE;\r |
3817 | } else {\r | |
289f6a14 | 3818 | if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* Write mode open against R/O file */\r |
53668523 | 3819 | res = FR_DENIED;\r |
70702af1 | 3820 | }\r |
53668523 L |
3821 | }\r |
3822 | }\r | |
3823 | }\r | |
3824 | if (res == FR_OK) {\r | |
289f6a14 | 3825 | if (mode & FA_CREATE_ALWAYS) mode |= FA_MODIFIED; /* Set file change flag if created or overwritten */\r |
70702af1 L |
3826 | fp->dir_sect = fs->winsect; /* Pointer to the directory entry */\r |
3827 | fp->dir_ptr = dj.dir;\r | |
5630b930 L |
3828 | #if FF_FS_LOCK\r |
3829 | fp->obj.lockid = inc_share(&dj, (mode & ~FA_READ) ? 1 : 0); /* Lock the file for this session */\r | |
289f6a14 | 3830 | if (fp->obj.lockid == 0) res = FR_INT_ERR;\r |
53668523 L |
3831 | #endif\r |
3832 | }\r | |
70702af1 L |
3833 | #else /* R/O configuration */\r |
3834 | if (res == FR_OK) {\r | |
289f6a14 | 3835 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it origin directory itself? */\r |
53668523 L |
3836 | res = FR_INVALID_NAME;\r |
3837 | } else {\r | |
289f6a14 | 3838 | if (dj.obj.attr & AM_DIR) { /* Is it a directory? */\r |
53668523 | 3839 | res = FR_NO_FILE;\r |
70702af1 | 3840 | }\r |
53668523 L |
3841 | }\r |
3842 | }\r | |
3843 | #endif\r | |
70702af1 L |
3844 | \r |
3845 | if (res == FR_OK) {\r | |
289f6a14 | 3846 | #if FF_FS_EXFAT\r |
70702af1 | 3847 | if (fs->fs_type == FS_EXFAT) {\r |
289f6a14 | 3848 | fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */\r |
70702af1 L |
3849 | fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;\r |
3850 | fp->obj.c_ofs = dj.blk_ofs;\r | |
289f6a14 | 3851 | init_alloc_info(fs, &fp->obj);\r |
70702af1 L |
3852 | } else\r |
3853 | #endif\r | |
3854 | {\r | |
289f6a14 | 3855 | fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */\r |
70702af1 L |
3856 | fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize);\r |
3857 | }\r | |
289f6a14 | 3858 | #if FF_USE_FASTSEEK\r |
5630b930 | 3859 | fp->cltbl = 0; /* Disable fast seek mode */\r |
70702af1 | 3860 | #endif\r |
5630b930 | 3861 | fp->obj.fs = fs; /* Validate the file object */\r |
70702af1 | 3862 | fp->obj.id = fs->id;\r |
5630b930 L |
3863 | fp->flag = mode; /* Set file access mode */\r |
3864 | fp->err = 0; /* Clear error flag */\r | |
3865 | fp->sect = 0; /* Invalidate current data sector */\r | |
3866 | fp->fptr = 0; /* Set file pointer top of the file */\r | |
289f6a14 L |
3867 | #if !FF_FS_READONLY\r |
3868 | #if !FF_FS_TINY\r | |
5630b930 | 3869 | memset(fp->buf, 0, sizeof fp->buf); /* Clear sector buffer */\r |
70702af1 L |
3870 | #endif\r |
3871 | if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */\r | |
3872 | fp->fptr = fp->obj.objsize; /* Offset to seek */\r | |
3873 | bcs = (DWORD)fs->csize * SS(fs); /* Cluster size in byte */\r | |
3874 | clst = fp->obj.sclust; /* Follow the cluster chain */\r | |
3875 | for (ofs = fp->obj.objsize; res == FR_OK && ofs > bcs; ofs -= bcs) {\r | |
3876 | clst = get_fat(&fp->obj, clst);\r | |
3877 | if (clst <= 1) res = FR_INT_ERR;\r | |
3878 | if (clst == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
3879 | }\r | |
3880 | fp->clust = clst;\r | |
3881 | if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */\r | |
5630b930 L |
3882 | sc = clst2sect(fs, clst);\r |
3883 | if (sc == 0) {\r | |
70702af1 L |
3884 | res = FR_INT_ERR;\r |
3885 | } else {\r | |
3886 | fp->sect = sc + (DWORD)(ofs / SS(fs));\r | |
289f6a14 L |
3887 | #if !FF_FS_TINY\r |
3888 | if (disk_read(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR;\r | |
70702af1 L |
3889 | #endif\r |
3890 | }\r | |
3891 | }\r | |
5630b930 L |
3892 | #if FF_FS_LOCK\r |
3893 | if (res != FR_OK) dec_share(fp->obj.lockid); /* Decrement file open counter if seek failed */\r | |
3894 | #endif\r | |
70702af1 | 3895 | }\r |
53668523 | 3896 | #endif\r |
53668523 | 3897 | }\r |
70702af1 L |
3898 | \r |
3899 | FREE_NAMBUF();\r | |
53668523 L |
3900 | }\r |
3901 | \r | |
70702af1 L |
3902 | if (res != FR_OK) fp->obj.fs = 0; /* Invalidate file object on error */\r |
3903 | \r | |
3904 | LEAVE_FF(fs, res);\r | |
53668523 L |
3905 | }\r |
3906 | \r | |
3907 | \r | |
3908 | \r | |
3909 | \r | |
3910 | /*-----------------------------------------------------------------------*/\r | |
3911 | /* Read File */\r | |
3912 | /*-----------------------------------------------------------------------*/\r | |
3913 | \r | |
3914 | FRESULT f_read (\r | |
5630b930 L |
3915 | FIL* fp, /* Open file to be read */\r |
3916 | void* buff, /* Data buffer to store the read data */\r | |
70702af1 | 3917 | UINT btr, /* Number of bytes to read */\r |
5630b930 | 3918 | UINT* br /* Number of bytes read */\r |
53668523 L |
3919 | )\r |
3920 | {\r | |
3921 | FRESULT res;\r | |
70702af1 | 3922 | FATFS *fs;\r |
5630b930 L |
3923 | DWORD clst;\r |
3924 | LBA_t sect;\r | |
70702af1 L |
3925 | FSIZE_t remain;\r |
3926 | UINT rcnt, cc, csect;\r | |
3927 | BYTE *rbuff = (BYTE*)buff;\r | |
53668523 L |
3928 | \r |
3929 | \r | |
3930 | *br = 0; /* Clear read byte counter */\r | |
70702af1 L |
3931 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
3932 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */\r | |
3933 | if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
3934 | remain = fp->obj.objsize - fp->fptr;\r | |
53668523 L |
3935 | if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */\r |
3936 | \r | |
5630b930 | 3937 | for ( ; btr > 0; btr -= rcnt, *br += rcnt, rbuff += rcnt, fp->fptr += rcnt) { /* Repeat until btr bytes read */\r |
70702af1 L |
3938 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r |
3939 | csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */\r | |
3940 | if (csect == 0) { /* On the cluster boundary? */\r | |
53668523 | 3941 | if (fp->fptr == 0) { /* On the top of the file? */\r |
70702af1 | 3942 | clst = fp->obj.sclust; /* Follow cluster chain from the origin */\r |
53668523 | 3943 | } else { /* Middle or end of the file */\r |
289f6a14 | 3944 | #if FF_USE_FASTSEEK\r |
70702af1 | 3945 | if (fp->cltbl) {\r |
53668523 | 3946 | clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */\r |
70702af1 | 3947 | } else\r |
53668523 | 3948 | #endif\r |
70702af1 L |
3949 | {\r |
3950 | clst = get_fat(&fp->obj, fp->clust); /* Follow cluster chain on the FAT */\r | |
3951 | }\r | |
53668523 | 3952 | }\r |
70702af1 L |
3953 | if (clst < 2) ABORT(fs, FR_INT_ERR);\r |
3954 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
53668523 L |
3955 | fp->clust = clst; /* Update current cluster */\r |
3956 | }\r | |
289f6a14 L |
3957 | sect = clst2sect(fs, fp->clust); /* Get current sector */\r |
3958 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
53668523 | 3959 | sect += csect;\r |
70702af1 | 3960 | cc = btr / SS(fs); /* When remaining bytes >= sector size, */\r |
289f6a14 | 3961 | if (cc > 0) { /* Read maximum contiguous sectors directly */\r |
70702af1 L |
3962 | if (csect + cc > fs->csize) { /* Clip at cluster boundary */\r |
3963 | cc = fs->csize - csect;\r | |
3964 | }\r | |
289f6a14 L |
3965 | if (disk_read(fs->pdrv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
3966 | #if !FF_FS_READONLY && FF_FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */\r | |
3967 | #if FF_FS_TINY\r | |
70702af1 | 3968 | if (fs->wflag && fs->winsect - sect < cc) {\r |
5630b930 | 3969 | memcpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs));\r |
70702af1 | 3970 | }\r |
53668523 | 3971 | #else\r |
70702af1 | 3972 | if ((fp->flag & FA_DIRTY) && fp->sect - sect < cc) {\r |
5630b930 | 3973 | memcpy(rbuff + ((fp->sect - sect) * SS(fs)), fp->buf, SS(fs));\r |
70702af1 | 3974 | }\r |
53668523 L |
3975 | #endif\r |
3976 | #endif\r | |
70702af1 | 3977 | rcnt = SS(fs) * cc; /* Number of bytes transferred */\r |
53668523 L |
3978 | continue;\r |
3979 | }\r | |
289f6a14 | 3980 | #if !FF_FS_TINY\r |
70702af1 | 3981 | if (fp->sect != sect) { /* Load data sector if not in cache */\r |
289f6a14 | 3982 | #if !FF_FS_READONLY\r |
70702af1 | 3983 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r |
289f6a14 | 3984 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 | 3985 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
3986 | }\r |
3987 | #endif\r | |
5630b930 | 3988 | if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */\r |
53668523 L |
3989 | }\r |
3990 | #endif\r | |
70702af1 | 3991 | fp->sect = sect;\r |
53668523 | 3992 | }\r |
5630b930 | 3993 | rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */\r |
70702af1 | 3994 | if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */\r |
289f6a14 | 3995 | #if FF_FS_TINY\r |
70702af1 | 3996 | if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */\r |
5630b930 | 3997 | memcpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */\r |
53668523 | 3998 | #else\r |
5630b930 | 3999 | memcpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */\r |
53668523 L |
4000 | #endif\r |
4001 | }\r | |
4002 | \r | |
70702af1 | 4003 | LEAVE_FF(fs, FR_OK);\r |
53668523 L |
4004 | }\r |
4005 | \r | |
4006 | \r | |
4007 | \r | |
4008 | \r | |
289f6a14 | 4009 | #if !FF_FS_READONLY\r |
53668523 L |
4010 | /*-----------------------------------------------------------------------*/\r |
4011 | /* Write File */\r | |
4012 | /*-----------------------------------------------------------------------*/\r | |
4013 | \r | |
4014 | FRESULT f_write (\r | |
5630b930 L |
4015 | FIL* fp, /* Open file to be written */\r |
4016 | const void* buff, /* Data to be written */\r | |
53668523 | 4017 | UINT btw, /* Number of bytes to write */\r |
5630b930 | 4018 | UINT* bw /* Number of bytes written */\r |
53668523 L |
4019 | )\r |
4020 | {\r | |
4021 | FRESULT res;\r | |
70702af1 | 4022 | FATFS *fs;\r |
5630b930 L |
4023 | DWORD clst;\r |
4024 | LBA_t sect;\r | |
70702af1 | 4025 | UINT wcnt, cc, csect;\r |
53668523 | 4026 | const BYTE *wbuff = (const BYTE*)buff;\r |
53668523 L |
4027 | \r |
4028 | \r | |
4029 | *bw = 0; /* Clear write byte counter */\r | |
70702af1 L |
4030 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
4031 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */\r | |
4032 | if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
53668523 | 4033 | \r |
289f6a14 L |
4034 | /* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */\r |
4035 | if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {\r | |
70702af1 L |
4036 | btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);\r |
4037 | }\r | |
53668523 | 4038 | \r |
5630b930 | 4039 | for ( ; btw > 0; btw -= wcnt, *bw += wcnt, wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize) { /* Repeat until all data written */\r |
70702af1 L |
4040 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r |
4041 | csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */\r | |
4042 | if (csect == 0) { /* On the cluster boundary? */\r | |
53668523 | 4043 | if (fp->fptr == 0) { /* On the top of the file? */\r |
70702af1 L |
4044 | clst = fp->obj.sclust; /* Follow from the origin */\r |
4045 | if (clst == 0) { /* If no cluster is allocated, */\r | |
4046 | clst = create_chain(&fp->obj, 0); /* create a new cluster chain */\r | |
4047 | }\r | |
4048 | } else { /* On the middle or end of the file */\r | |
289f6a14 | 4049 | #if FF_USE_FASTSEEK\r |
70702af1 | 4050 | if (fp->cltbl) {\r |
53668523 | 4051 | clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */\r |
70702af1 | 4052 | } else\r |
53668523 | 4053 | #endif\r |
70702af1 L |
4054 | {\r |
4055 | clst = create_chain(&fp->obj, fp->clust); /* Follow or stretch cluster chain on the FAT */\r | |
4056 | }\r | |
53668523 L |
4057 | }\r |
4058 | if (clst == 0) break; /* Could not allocate a new cluster (disk full) */\r | |
70702af1 L |
4059 | if (clst == 1) ABORT(fs, FR_INT_ERR);\r |
4060 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
53668523 | 4061 | fp->clust = clst; /* Update current cluster */\r |
70702af1 | 4062 | if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */\r |
53668523 | 4063 | }\r |
289f6a14 | 4064 | #if FF_FS_TINY\r |
70702af1 | 4065 | if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */\r |
53668523 | 4066 | #else\r |
70702af1 | 4067 | if (fp->flag & FA_DIRTY) { /* Write-back sector cache */\r |
289f6a14 | 4068 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 | 4069 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
4070 | }\r |
4071 | #endif\r | |
289f6a14 L |
4072 | sect = clst2sect(fs, fp->clust); /* Get current sector */\r |
4073 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
53668523 | 4074 | sect += csect;\r |
70702af1 | 4075 | cc = btw / SS(fs); /* When remaining bytes >= sector size, */\r |
289f6a14 | 4076 | if (cc > 0) { /* Write maximum contiguous sectors directly */\r |
70702af1 L |
4077 | if (csect + cc > fs->csize) { /* Clip at cluster boundary */\r |
4078 | cc = fs->csize - csect;\r | |
4079 | }\r | |
289f6a14 L |
4080 | if (disk_write(fs->pdrv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
4081 | #if FF_FS_MINIMIZE <= 2\r | |
4082 | #if FF_FS_TINY\r | |
70702af1 | 4083 | if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */\r |
5630b930 | 4084 | memcpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs));\r |
70702af1 | 4085 | fs->wflag = 0;\r |
53668523 L |
4086 | }\r |
4087 | #else\r | |
70702af1 | 4088 | if (fp->sect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */\r |
5630b930 | 4089 | memcpy(fp->buf, wbuff + ((fp->sect - sect) * SS(fs)), SS(fs));\r |
70702af1 | 4090 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
4091 | }\r |
4092 | #endif\r | |
4093 | #endif\r | |
70702af1 | 4094 | wcnt = SS(fs) * cc; /* Number of bytes transferred */\r |
53668523 L |
4095 | continue;\r |
4096 | }\r | |
289f6a14 | 4097 | #if FF_FS_TINY\r |
70702af1 L |
4098 | if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */\r |
4099 | if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR);\r | |
4100 | fs->winsect = sect;\r | |
53668523 L |
4101 | }\r |
4102 | #else\r | |
70702af1 L |
4103 | if (fp->sect != sect && /* Fill sector cache with file data */\r |
4104 | fp->fptr < fp->obj.objsize &&\r | |
289f6a14 | 4105 | disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) {\r |
70702af1 | 4106 | ABORT(fs, FR_DISK_ERR);\r |
53668523 L |
4107 | }\r |
4108 | #endif\r | |
70702af1 | 4109 | fp->sect = sect;\r |
53668523 | 4110 | }\r |
5630b930 | 4111 | wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */\r |
70702af1 | 4112 | if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */\r |
289f6a14 | 4113 | #if FF_FS_TINY\r |
70702af1 | 4114 | if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */\r |
5630b930 | 4115 | memcpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */\r |
70702af1 | 4116 | fs->wflag = 1;\r |
53668523 | 4117 | #else\r |
5630b930 | 4118 | memcpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */\r |
70702af1 | 4119 | fp->flag |= FA_DIRTY;\r |
53668523 L |
4120 | #endif\r |
4121 | }\r | |
4122 | \r | |
70702af1 | 4123 | fp->flag |= FA_MODIFIED; /* Set file change flag */\r |
53668523 | 4124 | \r |
70702af1 | 4125 | LEAVE_FF(fs, FR_OK);\r |
53668523 L |
4126 | }\r |
4127 | \r | |
4128 | \r | |
4129 | \r | |
4130 | \r | |
4131 | /*-----------------------------------------------------------------------*/\r | |
4132 | /* Synchronize the File */\r | |
4133 | /*-----------------------------------------------------------------------*/\r | |
4134 | \r | |
4135 | FRESULT f_sync (\r | |
5630b930 | 4136 | FIL* fp /* Open file to be synced */\r |
53668523 L |
4137 | )\r |
4138 | {\r | |
4139 | FRESULT res;\r | |
70702af1 | 4140 | FATFS *fs;\r |
53668523 L |
4141 | DWORD tm;\r |
4142 | BYTE *dir;\r | |
4143 | \r | |
4144 | \r | |
70702af1 | 4145 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
53668523 | 4146 | if (res == FR_OK) {\r |
70702af1 | 4147 | if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */\r |
289f6a14 | 4148 | #if !FF_FS_TINY\r |
70702af1 | 4149 | if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */\r |
289f6a14 | 4150 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR);\r |
70702af1 | 4151 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
4152 | }\r |
4153 | #endif\r | |
4154 | /* Update the directory entry */\r | |
70702af1 | 4155 | tm = GET_FATTIME(); /* Modified time */\r |
289f6a14 | 4156 | #if FF_FS_EXFAT\r |
70702af1 | 4157 | if (fs->fs_type == FS_EXFAT) {\r |
289f6a14 L |
4158 | res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */\r |
4159 | if (res == FR_OK) {\r | |
4160 | res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */\r | |
4161 | }\r | |
70702af1 L |
4162 | if (res == FR_OK) {\r |
4163 | DIR dj;\r | |
289f6a14 | 4164 | DEF_NAMBUF\r |
70702af1 L |
4165 | \r |
4166 | INIT_NAMBUF(fs);\r | |
289f6a14 | 4167 | res = load_obj_xdir(&dj, &fp->obj); /* Load directory entry block */\r |
70702af1 | 4168 | if (res == FR_OK) {\r |
289f6a14 L |
4169 | fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */\r |
4170 | fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation information */\r | |
5630b930 L |
4171 | st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust); /* Update start cluster */\r |
4172 | st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize); /* Update file size */\r | |
4173 | st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize); /* (FatFs does not support Valid File Size feature) */\r | |
70702af1 L |
4174 | st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Update modified time */\r |
4175 | fs->dirbuf[XDIR_ModTime10] = 0;\r | |
4176 | st_dword(fs->dirbuf + XDIR_AccTime, 0);\r | |
4177 | res = store_xdir(&dj); /* Restore it to the directory */\r | |
4178 | if (res == FR_OK) {\r | |
4179 | res = sync_fs(fs);\r | |
4180 | fp->flag &= (BYTE)~FA_MODIFIED;\r | |
4181 | }\r | |
4182 | }\r | |
4183 | FREE_NAMBUF();\r | |
4184 | }\r | |
4185 | } else\r | |
4186 | #endif\r | |
4187 | {\r | |
4188 | res = move_window(fs, fp->dir_sect);\r | |
4189 | if (res == FR_OK) {\r | |
4190 | dir = fp->dir_ptr;\r | |
289f6a14 L |
4191 | dir[DIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */\r |
4192 | st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation information */\r | |
70702af1 L |
4193 | st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */\r |
4194 | st_dword(dir + DIR_ModTime, tm); /* Update modified time */\r | |
4195 | st_word(dir + DIR_LstAccDate, 0);\r | |
4196 | fs->wflag = 1;\r | |
4197 | res = sync_fs(fs); /* Restore it to the directory */\r | |
4198 | fp->flag &= (BYTE)~FA_MODIFIED;\r | |
4199 | }\r | |
53668523 L |
4200 | }\r |
4201 | }\r | |
4202 | }\r | |
4203 | \r | |
70702af1 | 4204 | LEAVE_FF(fs, res);\r |
53668523 L |
4205 | }\r |
4206 | \r | |
289f6a14 | 4207 | #endif /* !FF_FS_READONLY */\r |
53668523 L |
4208 | \r |
4209 | \r | |
4210 | \r | |
4211 | \r | |
4212 | /*-----------------------------------------------------------------------*/\r | |
4213 | /* Close File */\r | |
4214 | /*-----------------------------------------------------------------------*/\r | |
4215 | \r | |
4216 | FRESULT f_close (\r | |
5630b930 | 4217 | FIL* fp /* Open file to be closed */\r |
53668523 L |
4218 | )\r |
4219 | {\r | |
4220 | FRESULT res;\r | |
70702af1 | 4221 | FATFS *fs;\r |
53668523 | 4222 | \r |
289f6a14 | 4223 | #if !FF_FS_READONLY\r |
53668523 L |
4224 | res = f_sync(fp); /* Flush cached data */\r |
4225 | if (res == FR_OK)\r | |
4226 | #endif\r | |
4227 | {\r | |
70702af1 | 4228 | res = validate(&fp->obj, &fs); /* Lock volume */\r |
53668523 | 4229 | if (res == FR_OK) {\r |
5630b930 L |
4230 | #if FF_FS_LOCK\r |
4231 | res = dec_share(fp->obj.lockid); /* Decrement file open counter */\r | |
289f6a14 L |
4232 | if (res == FR_OK) fp->obj.fs = 0; /* Invalidate file object */\r |
4233 | #else\r | |
4234 | fp->obj.fs = 0; /* Invalidate file object */\r | |
53668523 | 4235 | #endif\r |
289f6a14 | 4236 | #if FF_FS_REENTRANT\r |
5630b930 | 4237 | unlock_volume(fs, FR_OK); /* Unlock volume */\r |
53668523 L |
4238 | #endif\r |
4239 | }\r | |
4240 | }\r | |
4241 | return res;\r | |
4242 | }\r | |
4243 | \r | |
4244 | \r | |
4245 | \r | |
4246 | \r | |
289f6a14 | 4247 | #if FF_FS_RPATH >= 1\r |
53668523 L |
4248 | /*-----------------------------------------------------------------------*/\r |
4249 | /* Change Current Directory or Current Drive, Get Current Directory */\r | |
4250 | /*-----------------------------------------------------------------------*/\r | |
4251 | \r | |
53668523 | 4252 | FRESULT f_chdrive (\r |
289f6a14 | 4253 | const TCHAR* path /* Drive number to set */\r |
53668523 L |
4254 | )\r |
4255 | {\r | |
4256 | int vol;\r | |
4257 | \r | |
4258 | \r | |
70702af1 | 4259 | /* Get logical drive number */\r |
53668523 L |
4260 | vol = get_ldnumber(&path);\r |
4261 | if (vol < 0) return FR_INVALID_DRIVE;\r | |
70702af1 | 4262 | CurrVol = (BYTE)vol; /* Set it as current volume */\r |
53668523 L |
4263 | \r |
4264 | return FR_OK;\r | |
4265 | }\r | |
289f6a14 | 4266 | \r |
53668523 L |
4267 | \r |
4268 | \r | |
4269 | FRESULT f_chdir (\r | |
4270 | const TCHAR* path /* Pointer to the directory path */\r | |
4271 | )\r | |
4272 | {\r | |
289f6a14 L |
4273 | #if FF_STR_VOLUME_ID == 2\r |
4274 | UINT i;\r | |
4275 | #endif\r | |
53668523 L |
4276 | FRESULT res;\r |
4277 | DIR dj;\r | |
70702af1 L |
4278 | FATFS *fs;\r |
4279 | DEF_NAMBUF\r | |
53668523 | 4280 | \r |
289f6a14 | 4281 | \r |
70702af1 | 4282 | /* Get logical drive */\r |
5630b930 | 4283 | res = mount_volume(&path, &fs, 0);\r |
53668523 | 4284 | if (res == FR_OK) {\r |
70702af1 L |
4285 | dj.obj.fs = fs;\r |
4286 | INIT_NAMBUF(fs);\r | |
53668523 | 4287 | res = follow_path(&dj, path); /* Follow the path */\r |
53668523 | 4288 | if (res == FR_OK) { /* Follow completed */\r |
289f6a14 L |
4289 | if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it the start directory itself? */\r |
4290 | fs->cdir = dj.obj.sclust;\r | |
4291 | #if FF_FS_EXFAT\r | |
70702af1 L |
4292 | if (fs->fs_type == FS_EXFAT) {\r |
4293 | fs->cdc_scl = dj.obj.c_scl;\r | |
4294 | fs->cdc_size = dj.obj.c_size;\r | |
4295 | fs->cdc_ofs = dj.obj.c_ofs;\r | |
4296 | }\r | |
4297 | #endif\r | |
53668523 | 4298 | } else {\r |
70702af1 | 4299 | if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */\r |
289f6a14 | 4300 | #if FF_FS_EXFAT\r |
70702af1 L |
4301 | if (fs->fs_type == FS_EXFAT) {\r |
4302 | fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */\r | |
4303 | fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */\r | |
4304 | fs->cdc_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;\r | |
4305 | fs->cdc_ofs = dj.blk_ofs;\r | |
4306 | } else\r | |
4307 | #endif\r | |
4308 | {\r | |
4309 | fs->cdir = ld_clust(fs, dj.dir); /* Sub-directory cluster */\r | |
4310 | }\r | |
4311 | } else {\r | |
53668523 | 4312 | res = FR_NO_PATH; /* Reached but a file */\r |
70702af1 | 4313 | }\r |
53668523 L |
4314 | }\r |
4315 | }\r | |
70702af1 | 4316 | FREE_NAMBUF();\r |
53668523 | 4317 | if (res == FR_NO_FILE) res = FR_NO_PATH;\r |
5630b930 | 4318 | #if FF_STR_VOLUME_ID == 2 /* Also current drive is changed if in Unix style volume ID */\r |
289f6a14 L |
4319 | if (res == FR_OK) {\r |
4320 | for (i = FF_VOLUMES - 1; i && fs != FatFs[i]; i--) ; /* Set current drive */\r | |
4321 | CurrVol = (BYTE)i;\r | |
4322 | }\r | |
4323 | #endif\r | |
53668523 L |
4324 | }\r |
4325 | \r | |
70702af1 | 4326 | LEAVE_FF(fs, res);\r |
53668523 L |
4327 | }\r |
4328 | \r | |
4329 | \r | |
289f6a14 | 4330 | #if FF_FS_RPATH >= 2\r |
53668523 L |
4331 | FRESULT f_getcwd (\r |
4332 | TCHAR* buff, /* Pointer to the directory path */\r | |
289f6a14 | 4333 | UINT len /* Size of buff in unit of TCHAR */\r |
53668523 L |
4334 | )\r |
4335 | {\r | |
4336 | FRESULT res;\r | |
4337 | DIR dj;\r | |
70702af1 | 4338 | FATFS *fs;\r |
53668523 L |
4339 | UINT i, n;\r |
4340 | DWORD ccl;\r | |
289f6a14 L |
4341 | TCHAR *tp = buff;\r |
4342 | #if FF_VOLUMES >= 2\r | |
4343 | UINT vl;\r | |
289f6a14 L |
4344 | #if FF_STR_VOLUME_ID\r |
4345 | const char *vp;\r | |
5630b930 | 4346 | #endif\r |
289f6a14 | 4347 | #endif\r |
53668523 | 4348 | FILINFO fno;\r |
70702af1 | 4349 | DEF_NAMBUF\r |
53668523 L |
4350 | \r |
4351 | \r | |
70702af1 | 4352 | /* Get logical drive */\r |
5630b930 L |
4353 | buff[0] = 0; /* Set null string to get current volume */\r |
4354 | res = mount_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */\r | |
53668523 | 4355 | if (res == FR_OK) {\r |
70702af1 L |
4356 | dj.obj.fs = fs;\r |
4357 | INIT_NAMBUF(fs);\r | |
289f6a14 L |
4358 | \r |
4359 | /* Follow parent directories and create the path */\r | |
53668523 | 4360 | i = len; /* Bottom of buffer (directory stack base) */\r |
289f6a14 | 4361 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */\r |
70702af1 L |
4362 | dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */\r |
4363 | while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */\r | |
4364 | res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */\r | |
53668523 | 4365 | if (res != FR_OK) break;\r |
70702af1 L |
4366 | res = move_window(fs, dj.sect);\r |
4367 | if (res != FR_OK) break;\r | |
4368 | dj.obj.sclust = ld_clust(fs, dj.dir); /* Goto parent directory */\r | |
4369 | res = dir_sdi(&dj, 0);\r | |
4370 | if (res != FR_OK) break;\r | |
4371 | do { /* Find the entry links to the child directory */\r | |
5630b930 | 4372 | res = DIR_READ_FILE(&dj);\r |
70702af1 L |
4373 | if (res != FR_OK) break;\r |
4374 | if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */\r | |
4375 | res = dir_next(&dj, 0);\r | |
4376 | } while (res == FR_OK);\r | |
4377 | if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */\r | |
4378 | if (res != FR_OK) break;\r | |
4379 | get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */\r | |
289f6a14 L |
4380 | for (n = 0; fno.fname[n]; n++) ; /* Name length */\r |
4381 | if (i < n + 1) { /* Insufficient space to store the path name? */\r | |
70702af1 L |
4382 | res = FR_NOT_ENOUGH_CORE; break;\r |
4383 | }\r | |
289f6a14 | 4384 | while (n) buff[--i] = fno.fname[--n]; /* Stack the name */\r |
70702af1 | 4385 | buff[--i] = '/';\r |
53668523 | 4386 | }\r |
53668523 | 4387 | }\r |
53668523 | 4388 | if (res == FR_OK) {\r |
289f6a14 L |
4389 | if (i == len) buff[--i] = '/'; /* Is it the root-directory? */\r |
4390 | #if FF_VOLUMES >= 2 /* Put drive prefix */\r | |
4391 | vl = 0;\r | |
4392 | #if FF_STR_VOLUME_ID >= 1 /* String volume ID */\r | |
4393 | for (n = 0, vp = (const char*)VolumeStr[CurrVol]; vp[n]; n++) ;\r | |
4394 | if (i >= n + 2) {\r | |
4395 | if (FF_STR_VOLUME_ID == 2) *tp++ = (TCHAR)'/';\r | |
4396 | for (vl = 0; vl < n; *tp++ = (TCHAR)vp[vl], vl++) ;\r | |
4397 | if (FF_STR_VOLUME_ID == 1) *tp++ = (TCHAR)':';\r | |
4398 | vl++;\r | |
4399 | }\r | |
4400 | #else /* Numeric volume ID */\r | |
4401 | if (i >= 3) {\r | |
4402 | *tp++ = (TCHAR)'0' + CurrVol;\r | |
4403 | *tp++ = (TCHAR)':';\r | |
4404 | vl = 2;\r | |
4405 | }\r | |
4406 | #endif\r | |
4407 | if (vl == 0) res = FR_NOT_ENOUGH_CORE;\r | |
4408 | #endif\r | |
4409 | /* Add current directory path */\r | |
4410 | if (res == FR_OK) {\r | |
5630b930 L |
4411 | do { /* Copy stacked path string */\r |
4412 | *tp++ = buff[i++];\r | |
4413 | } while (i < len);\r | |
53668523 L |
4414 | }\r |
4415 | }\r | |
70702af1 | 4416 | FREE_NAMBUF();\r |
53668523 L |
4417 | }\r |
4418 | \r | |
289f6a14 | 4419 | *tp = 0;\r |
70702af1 | 4420 | LEAVE_FF(fs, res);\r |
53668523 | 4421 | }\r |
70702af1 | 4422 | \r |
289f6a14 L |
4423 | #endif /* FF_FS_RPATH >= 2 */\r |
4424 | #endif /* FF_FS_RPATH >= 1 */\r | |
53668523 L |
4425 | \r |
4426 | \r | |
4427 | \r | |
289f6a14 | 4428 | #if FF_FS_MINIMIZE <= 2\r |
53668523 | 4429 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 4430 | /* Seek File Read/Write Pointer */\r |
53668523 L |
4431 | /*-----------------------------------------------------------------------*/\r |
4432 | \r | |
4433 | FRESULT f_lseek (\r | |
4434 | FIL* fp, /* Pointer to the file object */\r | |
70702af1 | 4435 | FSIZE_t ofs /* File pointer from top of file */\r |
53668523 L |
4436 | )\r |
4437 | {\r | |
4438 | FRESULT res;\r | |
70702af1 | 4439 | FATFS *fs;\r |
5630b930 L |
4440 | DWORD clst, bcs;\r |
4441 | LBA_t nsect;\r | |
70702af1 | 4442 | FSIZE_t ifptr;\r |
289f6a14 | 4443 | #if FF_USE_FASTSEEK\r |
5630b930 L |
4444 | DWORD cl, pcl, ncl, tcl, tlen, ulen;\r |
4445 | DWORD *tbl;\r | |
4446 | LBA_t dsc;\r | |
70702af1 | 4447 | #endif\r |
53668523 | 4448 | \r |
70702af1 | 4449 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
289f6a14 L |
4450 | if (res == FR_OK) res = (FRESULT)fp->err;\r |
4451 | #if FF_FS_EXFAT && !FF_FS_READONLY\r | |
4452 | if (res == FR_OK && fs->fs_type == FS_EXFAT) {\r | |
4453 | res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */\r | |
4454 | }\r | |
4455 | #endif\r | |
4456 | if (res != FR_OK) LEAVE_FF(fs, res);\r | |
4457 | \r | |
4458 | #if FF_USE_FASTSEEK\r | |
53668523 | 4459 | if (fp->cltbl) { /* Fast seek */\r |
53668523 L |
4460 | if (ofs == CREATE_LINKMAP) { /* Create CLMT */\r |
4461 | tbl = fp->cltbl;\r | |
4462 | tlen = *tbl++; ulen = 2; /* Given table size and required table size */\r | |
70702af1 | 4463 | cl = fp->obj.sclust; /* Origin of the chain */\r |
289f6a14 | 4464 | if (cl != 0) {\r |
53668523 L |
4465 | do {\r |
4466 | /* Get a fragment */\r | |
4467 | tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */\r | |
4468 | do {\r | |
4469 | pcl = cl; ncl++;\r | |
70702af1 L |
4470 | cl = get_fat(&fp->obj, cl);\r |
4471 | if (cl <= 1) ABORT(fs, FR_INT_ERR);\r | |
4472 | if (cl == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
53668523 L |
4473 | } while (cl == pcl + 1);\r |
4474 | if (ulen <= tlen) { /* Store the length and top of the fragment */\r | |
4475 | *tbl++ = ncl; *tbl++ = tcl;\r | |
4476 | }\r | |
70702af1 | 4477 | } while (cl < fs->n_fatent); /* Repeat until end of chain */\r |
53668523 L |
4478 | }\r |
4479 | *fp->cltbl = ulen; /* Number of items used */\r | |
70702af1 | 4480 | if (ulen <= tlen) {\r |
53668523 | 4481 | *tbl = 0; /* Terminate table */\r |
70702af1 | 4482 | } else {\r |
53668523 | 4483 | res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */\r |
70702af1 | 4484 | }\r |
53668523 | 4485 | } else { /* Fast seek */\r |
70702af1 | 4486 | if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */\r |
53668523 | 4487 | fp->fptr = ofs; /* Set file pointer */\r |
289f6a14 | 4488 | if (ofs > 0) {\r |
53668523 | 4489 | fp->clust = clmt_clust(fp, ofs - 1);\r |
289f6a14 L |
4490 | dsc = clst2sect(fs, fp->clust);\r |
4491 | if (dsc == 0) ABORT(fs, FR_INT_ERR);\r | |
70702af1 L |
4492 | dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1);\r |
4493 | if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */\r | |
289f6a14 L |
4494 | #if !FF_FS_TINY\r |
4495 | #if !FF_FS_READONLY\r | |
70702af1 | 4496 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r |
289f6a14 | 4497 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 | 4498 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
4499 | }\r |
4500 | #endif\r | |
289f6a14 | 4501 | if (disk_read(fs->pdrv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */\r |
53668523 | 4502 | #endif\r |
70702af1 | 4503 | fp->sect = dsc;\r |
53668523 L |
4504 | }\r |
4505 | }\r | |
4506 | }\r | |
4507 | } else\r | |
4508 | #endif\r | |
4509 | \r | |
4510 | /* Normal Seek */\r | |
4511 | {\r | |
289f6a14 L |
4512 | #if FF_FS_EXFAT\r |
4513 | if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4 GiB - 1 if at FATxx */\r | |
53668523 | 4514 | #endif\r |
289f6a14 | 4515 | if (ofs > fp->obj.objsize && (FF_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */\r |
70702af1 L |
4516 | ofs = fp->obj.objsize;\r |
4517 | }\r | |
53668523 L |
4518 | ifptr = fp->fptr;\r |
4519 | fp->fptr = nsect = 0;\r | |
289f6a14 | 4520 | if (ofs > 0) {\r |
70702af1 | 4521 | bcs = (DWORD)fs->csize * SS(fs); /* Cluster size (byte) */\r |
53668523 L |
4522 | if (ifptr > 0 &&\r |
4523 | (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */\r | |
70702af1 | 4524 | fp->fptr = (ifptr - 1) & ~(FSIZE_t)(bcs - 1); /* start from the current cluster */\r |
53668523 L |
4525 | ofs -= fp->fptr;\r |
4526 | clst = fp->clust;\r | |
4527 | } else { /* When seek to back cluster, */\r | |
70702af1 | 4528 | clst = fp->obj.sclust; /* start from the first cluster */\r |
289f6a14 | 4529 | #if !FF_FS_READONLY\r |
53668523 | 4530 | if (clst == 0) { /* If no cluster chain, create a new chain */\r |
70702af1 L |
4531 | clst = create_chain(&fp->obj, 0);\r |
4532 | if (clst == 1) ABORT(fs, FR_INT_ERR);\r | |
4533 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
4534 | fp->obj.sclust = clst;\r | |
53668523 L |
4535 | }\r |
4536 | #endif\r | |
4537 | fp->clust = clst;\r | |
4538 | }\r | |
4539 | if (clst != 0) {\r | |
4540 | while (ofs > bcs) { /* Cluster following loop */\r | |
70702af1 | 4541 | ofs -= bcs; fp->fptr += bcs;\r |
289f6a14 | 4542 | #if !FF_FS_READONLY\r |
53668523 | 4543 | if (fp->flag & FA_WRITE) { /* Check if in write mode or not */\r |
289f6a14 | 4544 | if (FF_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */\r |
70702af1 L |
4545 | fp->obj.objsize = fp->fptr;\r |
4546 | fp->flag |= FA_MODIFIED;\r | |
4547 | }\r | |
4548 | clst = create_chain(&fp->obj, clst); /* Follow chain with forceed stretch */\r | |
4549 | if (clst == 0) { /* Clip file size in case of disk full */\r | |
4550 | ofs = 0; break;\r | |
53668523 L |
4551 | }\r |
4552 | } else\r | |
4553 | #endif\r | |
70702af1 L |
4554 | {\r |
4555 | clst = get_fat(&fp->obj, clst); /* Follow cluster chain if not in write mode */\r | |
4556 | }\r | |
4557 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
4558 | if (clst <= 1 || clst >= fs->n_fatent) ABORT(fs, FR_INT_ERR);\r | |
53668523 | 4559 | fp->clust = clst;\r |
53668523 L |
4560 | }\r |
4561 | fp->fptr += ofs;\r | |
70702af1 | 4562 | if (ofs % SS(fs)) {\r |
289f6a14 L |
4563 | nsect = clst2sect(fs, clst); /* Current sector */\r |
4564 | if (nsect == 0) ABORT(fs, FR_INT_ERR);\r | |
70702af1 | 4565 | nsect += (DWORD)(ofs / SS(fs));\r |
53668523 L |
4566 | }\r |
4567 | }\r | |
4568 | }\r | |
289f6a14 | 4569 | if (!FF_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */\r |
70702af1 L |
4570 | fp->obj.objsize = fp->fptr;\r |
4571 | fp->flag |= FA_MODIFIED;\r | |
4572 | }\r | |
4573 | if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */\r | |
289f6a14 L |
4574 | #if !FF_FS_TINY\r |
4575 | #if !FF_FS_READONLY\r | |
70702af1 | 4576 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r |
289f6a14 | 4577 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 | 4578 | fp->flag &= (BYTE)~FA_DIRTY;\r |
53668523 L |
4579 | }\r |
4580 | #endif\r | |
289f6a14 | 4581 | if (disk_read(fs->pdrv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */\r |
53668523 | 4582 | #endif\r |
70702af1 | 4583 | fp->sect = nsect;\r |
53668523 | 4584 | }\r |
53668523 L |
4585 | }\r |
4586 | \r | |
70702af1 | 4587 | LEAVE_FF(fs, res);\r |
53668523 L |
4588 | }\r |
4589 | \r | |
4590 | \r | |
4591 | \r | |
289f6a14 | 4592 | #if FF_FS_MINIMIZE <= 1\r |
53668523 L |
4593 | /*-----------------------------------------------------------------------*/\r |
4594 | /* Create a Directory Object */\r | |
4595 | /*-----------------------------------------------------------------------*/\r | |
4596 | \r | |
4597 | FRESULT f_opendir (\r | |
4598 | DIR* dp, /* Pointer to directory object to create */\r | |
4599 | const TCHAR* path /* Pointer to the directory path */\r | |
4600 | )\r | |
4601 | {\r | |
4602 | FRESULT res;\r | |
70702af1 | 4603 | FATFS *fs;\r |
70702af1 | 4604 | DEF_NAMBUF\r |
53668523 L |
4605 | \r |
4606 | \r | |
4607 | if (!dp) return FR_INVALID_OBJECT;\r | |
4608 | \r | |
70702af1 | 4609 | /* Get logical drive */\r |
5630b930 | 4610 | res = mount_volume(&path, &fs, 0);\r |
53668523 | 4611 | if (res == FR_OK) {\r |
289f6a14 | 4612 | dp->obj.fs = fs;\r |
70702af1 | 4613 | INIT_NAMBUF(fs);\r |
53668523 | 4614 | res = follow_path(dp, path); /* Follow the path to the directory */\r |
53668523 | 4615 | if (res == FR_OK) { /* Follow completed */\r |
70702af1 | 4616 | if (!(dp->fn[NSFLAG] & NS_NONAME)) { /* It is not the origin directory itself */\r |
289f6a14 L |
4617 | if (dp->obj.attr & AM_DIR) { /* This object is a sub-directory */\r |
4618 | #if FF_FS_EXFAT\r | |
70702af1 | 4619 | if (fs->fs_type == FS_EXFAT) {\r |
5630b930 | 4620 | dp->obj.c_scl = dp->obj.sclust; /* Get containing directory inforamation */\r |
289f6a14 L |
4621 | dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;\r |
4622 | dp->obj.c_ofs = dp->blk_ofs;\r | |
4623 | init_alloc_info(fs, &dp->obj); /* Get object allocation info */\r | |
70702af1 L |
4624 | } else\r |
4625 | #endif\r | |
4626 | {\r | |
289f6a14 | 4627 | dp->obj.sclust = ld_clust(fs, dp->dir); /* Get object allocation info */\r |
70702af1 L |
4628 | }\r |
4629 | } else { /* This object is a file */\r | |
53668523 | 4630 | res = FR_NO_PATH;\r |
70702af1 | 4631 | }\r |
53668523 L |
4632 | }\r |
4633 | if (res == FR_OK) {\r | |
289f6a14 | 4634 | dp->obj.id = fs->id;\r |
53668523 | 4635 | res = dir_sdi(dp, 0); /* Rewind directory */\r |
5630b930 | 4636 | #if FF_FS_LOCK\r |
53668523 | 4637 | if (res == FR_OK) {\r |
289f6a14 | 4638 | if (dp->obj.sclust != 0) {\r |
5630b930 | 4639 | dp->obj.lockid = inc_share(dp, 0); /* Lock the sub directory */\r |
289f6a14 | 4640 | if (!dp->obj.lockid) res = FR_TOO_MANY_OPEN_FILES;\r |
53668523 | 4641 | } else {\r |
289f6a14 | 4642 | dp->obj.lockid = 0; /* Root directory need not to be locked */\r |
53668523 L |
4643 | }\r |
4644 | }\r | |
4645 | #endif\r | |
4646 | }\r | |
4647 | }\r | |
70702af1 | 4648 | FREE_NAMBUF();\r |
53668523 L |
4649 | if (res == FR_NO_FILE) res = FR_NO_PATH;\r |
4650 | }\r | |
5630b930 | 4651 | if (res != FR_OK) dp->obj.fs = 0; /* Invalidate the directory object if function failed */\r |
53668523 L |
4652 | \r |
4653 | LEAVE_FF(fs, res);\r | |
4654 | }\r | |
4655 | \r | |
4656 | \r | |
4657 | \r | |
4658 | \r | |
4659 | /*-----------------------------------------------------------------------*/\r | |
4660 | /* Close Directory */\r | |
4661 | /*-----------------------------------------------------------------------*/\r | |
4662 | \r | |
4663 | FRESULT f_closedir (\r | |
4664 | DIR *dp /* Pointer to the directory object to be closed */\r | |
4665 | )\r | |
4666 | {\r | |
4667 | FRESULT res;\r | |
70702af1 | 4668 | FATFS *fs;\r |
53668523 L |
4669 | \r |
4670 | \r | |
289f6a14 | 4671 | res = validate(&dp->obj, &fs); /* Check validity of the file object */\r |
53668523 | 4672 | if (res == FR_OK) {\r |
5630b930 L |
4673 | #if FF_FS_LOCK\r |
4674 | if (dp->obj.lockid) res = dec_share(dp->obj.lockid); /* Decrement sub-directory open counter */\r | |
289f6a14 L |
4675 | if (res == FR_OK) dp->obj.fs = 0; /* Invalidate directory object */\r |
4676 | #else\r | |
4677 | dp->obj.fs = 0; /* Invalidate directory object */\r | |
53668523 | 4678 | #endif\r |
289f6a14 | 4679 | #if FF_FS_REENTRANT\r |
5630b930 | 4680 | unlock_volume(fs, FR_OK); /* Unlock volume */\r |
53668523 L |
4681 | #endif\r |
4682 | }\r | |
4683 | return res;\r | |
4684 | }\r | |
4685 | \r | |
4686 | \r | |
4687 | \r | |
4688 | \r | |
4689 | /*-----------------------------------------------------------------------*/\r | |
4690 | /* Read Directory Entries in Sequence */\r | |
4691 | /*-----------------------------------------------------------------------*/\r | |
4692 | \r | |
4693 | FRESULT f_readdir (\r | |
4694 | DIR* dp, /* Pointer to the open directory object */\r | |
4695 | FILINFO* fno /* Pointer to file information to return */\r | |
4696 | )\r | |
4697 | {\r | |
4698 | FRESULT res;\r | |
70702af1 L |
4699 | FATFS *fs;\r |
4700 | DEF_NAMBUF\r | |
53668523 L |
4701 | \r |
4702 | \r | |
70702af1 | 4703 | res = validate(&dp->obj, &fs); /* Check validity of the directory object */\r |
53668523 L |
4704 | if (res == FR_OK) {\r |
4705 | if (!fno) {\r | |
5630b930 | 4706 | res = dir_sdi(dp, 0); /* Rewind the directory object */\r |
53668523 | 4707 | } else {\r |
70702af1 | 4708 | INIT_NAMBUF(fs);\r |
5630b930 | 4709 | res = DIR_READ_FILE(dp); /* Read an item */\r |
70702af1 | 4710 | if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory */\r |
53668523 L |
4711 | if (res == FR_OK) { /* A valid entry is found */\r |
4712 | get_fileinfo(dp, fno); /* Get the object information */\r | |
4713 | res = dir_next(dp, 0); /* Increment index for next */\r | |
70702af1 | 4714 | if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory now */\r |
53668523 | 4715 | }\r |
70702af1 | 4716 | FREE_NAMBUF();\r |
53668523 L |
4717 | }\r |
4718 | }\r | |
70702af1 L |
4719 | LEAVE_FF(fs, res);\r |
4720 | }\r | |
4721 | \r | |
4722 | \r | |
4723 | \r | |
289f6a14 | 4724 | #if FF_USE_FIND\r |
70702af1 L |
4725 | /*-----------------------------------------------------------------------*/\r |
4726 | /* Find Next File */\r | |
4727 | /*-----------------------------------------------------------------------*/\r | |
4728 | \r | |
4729 | FRESULT f_findnext (\r | |
4730 | DIR* dp, /* Pointer to the open directory object */\r | |
4731 | FILINFO* fno /* Pointer to the file information structure */\r | |
4732 | )\r | |
4733 | {\r | |
4734 | FRESULT res;\r | |
4735 | \r | |
4736 | \r | |
4737 | for (;;) {\r | |
4738 | res = f_readdir(dp, fno); /* Get a directory item */\r | |
4739 | if (res != FR_OK || !fno || !fno->fname[0]) break; /* Terminate if any error or end of directory */\r | |
5630b930 | 4740 | if (pattern_match(dp->pat, fno->fname, 0, FIND_RECURS)) break; /* Test for the file name */\r |
289f6a14 | 4741 | #if FF_USE_LFN && FF_USE_FIND == 2\r |
5630b930 | 4742 | if (pattern_match(dp->pat, fno->altname, 0, FIND_RECURS)) break; /* Test for alternative name if exist */\r |
70702af1 L |
4743 | #endif\r |
4744 | }\r | |
4745 | return res;\r | |
4746 | }\r | |
4747 | \r | |
4748 | \r | |
4749 | \r | |
4750 | /*-----------------------------------------------------------------------*/\r | |
4751 | /* Find First File */\r | |
4752 | /*-----------------------------------------------------------------------*/\r | |
53668523 | 4753 | \r |
70702af1 L |
4754 | FRESULT f_findfirst (\r |
4755 | DIR* dp, /* Pointer to the blank directory object */\r | |
4756 | FILINFO* fno, /* Pointer to the file information structure */\r | |
4757 | const TCHAR* path, /* Pointer to the directory to open */\r | |
4758 | const TCHAR* pattern /* Pointer to the matching pattern */\r | |
4759 | )\r | |
4760 | {\r | |
4761 | FRESULT res;\r | |
4762 | \r | |
4763 | \r | |
4764 | dp->pat = pattern; /* Save pointer to pattern string */\r | |
4765 | res = f_opendir(dp, path); /* Open the target directory */\r | |
4766 | if (res == FR_OK) {\r | |
4767 | res = f_findnext(dp, fno); /* Find the first item */\r | |
4768 | }\r | |
4769 | return res;\r | |
53668523 L |
4770 | }\r |
4771 | \r | |
289f6a14 | 4772 | #endif /* FF_USE_FIND */\r |
70702af1 | 4773 | \r |
53668523 L |
4774 | \r |
4775 | \r | |
289f6a14 | 4776 | #if FF_FS_MINIMIZE == 0\r |
53668523 L |
4777 | /*-----------------------------------------------------------------------*/\r |
4778 | /* Get File Status */\r | |
4779 | /*-----------------------------------------------------------------------*/\r | |
4780 | \r | |
4781 | FRESULT f_stat (\r | |
4782 | const TCHAR* path, /* Pointer to the file path */\r | |
4783 | FILINFO* fno /* Pointer to file information to return */\r | |
4784 | )\r | |
4785 | {\r | |
4786 | FRESULT res;\r | |
4787 | DIR dj;\r | |
70702af1 | 4788 | DEF_NAMBUF\r |
53668523 L |
4789 | \r |
4790 | \r | |
70702af1 | 4791 | /* Get logical drive */\r |
5630b930 | 4792 | res = mount_volume(&path, &dj.obj.fs, 0);\r |
53668523 | 4793 | if (res == FR_OK) {\r |
70702af1 | 4794 | INIT_NAMBUF(dj.obj.fs);\r |
53668523 L |
4795 | res = follow_path(&dj, path); /* Follow the file path */\r |
4796 | if (res == FR_OK) { /* Follow completed */\r | |
70702af1 | 4797 | if (dj.fn[NSFLAG] & NS_NONAME) { /* It is origin directory */\r |
53668523 | 4798 | res = FR_INVALID_NAME;\r |
70702af1 L |
4799 | } else { /* Found an object */\r |
4800 | if (fno) get_fileinfo(&dj, fno);\r | |
53668523 L |
4801 | }\r |
4802 | }\r | |
70702af1 | 4803 | FREE_NAMBUF();\r |
53668523 L |
4804 | }\r |
4805 | \r | |
70702af1 | 4806 | LEAVE_FF(dj.obj.fs, res);\r |
53668523 L |
4807 | }\r |
4808 | \r | |
4809 | \r | |
4810 | \r | |
289f6a14 | 4811 | #if !FF_FS_READONLY\r |
53668523 L |
4812 | /*-----------------------------------------------------------------------*/\r |
4813 | /* Get Number of Free Clusters */\r | |
4814 | /*-----------------------------------------------------------------------*/\r | |
4815 | \r | |
4816 | FRESULT f_getfree (\r | |
289f6a14 | 4817 | const TCHAR* path, /* Logical drive number */\r |
53668523 | 4818 | DWORD* nclst, /* Pointer to a variable to return number of free clusters */\r |
289f6a14 | 4819 | FATFS** fatfs /* Pointer to return pointer to corresponding filesystem object */\r |
53668523 L |
4820 | )\r |
4821 | {\r | |
4822 | FRESULT res;\r | |
4823 | FATFS *fs;\r | |
5630b930 L |
4824 | DWORD nfree, clst, stat;\r |
4825 | LBA_t sect;\r | |
53668523 | 4826 | UINT i;\r |
289f6a14 | 4827 | FFOBJID obj;\r |
53668523 L |
4828 | \r |
4829 | \r | |
70702af1 | 4830 | /* Get logical drive */\r |
5630b930 | 4831 | res = mount_volume(&path, &fs, 0);\r |
53668523 | 4832 | if (res == FR_OK) {\r |
70702af1 | 4833 | *fatfs = fs; /* Return ptr to the fs object */\r |
289f6a14 | 4834 | /* If free_clst is valid, return it without full FAT scan */\r |
70702af1 L |
4835 | if (fs->free_clst <= fs->n_fatent - 2) {\r |
4836 | *nclst = fs->free_clst;\r | |
53668523 | 4837 | } else {\r |
289f6a14 | 4838 | /* Scan FAT to obtain number of free clusters */\r |
70702af1 | 4839 | nfree = 0;\r |
289f6a14 | 4840 | if (fs->fs_type == FS_FAT12) { /* FAT12: Scan bit field FAT entries */\r |
70702af1 | 4841 | clst = 2; obj.fs = fs;\r |
53668523 | 4842 | do {\r |
70702af1 | 4843 | stat = get_fat(&obj, clst);\r |
5630b930 L |
4844 | if (stat == 0xFFFFFFFF) {\r |
4845 | res = FR_DISK_ERR; break;\r | |
4846 | }\r | |
4847 | if (stat == 1) {\r | |
4848 | res = FR_INT_ERR; break;\r | |
4849 | }\r | |
70702af1 | 4850 | if (stat == 0) nfree++;\r |
53668523 L |
4851 | } while (++clst < fs->n_fatent);\r |
4852 | } else {\r | |
289f6a14 L |
4853 | #if FF_FS_EXFAT\r |
4854 | if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan allocation bitmap */\r | |
70702af1 L |
4855 | BYTE bm;\r |
4856 | UINT b;\r | |
4857 | \r | |
289f6a14 | 4858 | clst = fs->n_fatent - 2; /* Number of clusters */\r |
5630b930 | 4859 | sect = fs->bitbase; /* Bitmap sector */\r |
289f6a14 L |
4860 | i = 0; /* Offset in the sector */\r |
4861 | do { /* Counts numbuer of bits with zero in the bitmap */\r | |
5630b930 | 4862 | if (i == 0) { /* New sector? */\r |
289f6a14 L |
4863 | res = move_window(fs, sect++);\r |
4864 | if (res != FR_OK) break;\r | |
4865 | }\r | |
5630b930 L |
4866 | for (b = 8, bm = ~fs->win[i]; b && clst; b--, clst--) {\r |
4867 | nfree += bm & 1;\r | |
70702af1 L |
4868 | bm >>= 1;\r |
4869 | }\r | |
4870 | i = (i + 1) % SS(fs);\r | |
4871 | } while (clst);\r | |
4872 | } else\r | |
4873 | #endif\r | |
289f6a14 L |
4874 | { /* FAT16/32: Scan WORD/DWORD FAT entries */\r |
4875 | clst = fs->n_fatent; /* Number of entries */\r | |
4876 | sect = fs->fatbase; /* Top of the FAT */\r | |
4877 | i = 0; /* Offset in the sector */\r | |
4878 | do { /* Counts numbuer of entries with zero in the FAT */\r | |
5630b930 | 4879 | if (i == 0) { /* New sector? */\r |
70702af1 L |
4880 | res = move_window(fs, sect++);\r |
4881 | if (res != FR_OK) break;\r | |
70702af1 L |
4882 | }\r |
4883 | if (fs->fs_type == FS_FAT16) {\r | |
289f6a14 L |
4884 | if (ld_word(fs->win + i) == 0) nfree++;\r |
4885 | i += 2;\r | |
70702af1 | 4886 | } else {\r |
289f6a14 L |
4887 | if ((ld_dword(fs->win + i) & 0x0FFFFFFF) == 0) nfree++;\r |
4888 | i += 4;\r | |
70702af1 | 4889 | }\r |
289f6a14 | 4890 | i %= SS(fs);\r |
70702af1 L |
4891 | } while (--clst);\r |
4892 | }\r | |
53668523 | 4893 | }\r |
5630b930 L |
4894 | if (res == FR_OK) { /* Update parameters if succeeded */\r |
4895 | *nclst = nfree; /* Return the free clusters */\r | |
4896 | fs->free_clst = nfree; /* Now free_clst is valid */\r | |
4897 | fs->fsi_flag |= 1; /* FAT32: FSInfo is to be updated */\r | |
4898 | }\r | |
53668523 L |
4899 | }\r |
4900 | }\r | |
70702af1 | 4901 | \r |
53668523 L |
4902 | LEAVE_FF(fs, res);\r |
4903 | }\r | |
4904 | \r | |
4905 | \r | |
4906 | \r | |
4907 | \r | |
4908 | /*-----------------------------------------------------------------------*/\r | |
4909 | /* Truncate File */\r | |
4910 | /*-----------------------------------------------------------------------*/\r | |
4911 | \r | |
4912 | FRESULT f_truncate (\r | |
4913 | FIL* fp /* Pointer to the file object */\r | |
4914 | )\r | |
4915 | {\r | |
4916 | FRESULT res;\r | |
70702af1 | 4917 | FATFS *fs;\r |
53668523 L |
4918 | DWORD ncl;\r |
4919 | \r | |
4920 | \r | |
70702af1 L |
4921 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
4922 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
4923 | if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
4924 | \r | |
289f6a14 | 4925 | if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */\r |
70702af1 L |
4926 | if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */\r |
4927 | res = remove_chain(&fp->obj, fp->obj.sclust, 0);\r | |
4928 | fp->obj.sclust = 0;\r | |
4929 | } else { /* When truncate a part of the file, remove remaining clusters */\r | |
4930 | ncl = get_fat(&fp->obj, fp->clust);\r | |
4931 | res = FR_OK;\r | |
4932 | if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
4933 | if (ncl == 1) res = FR_INT_ERR;\r | |
4934 | if (res == FR_OK && ncl < fs->n_fatent) {\r | |
4935 | res = remove_chain(&fp->obj, ncl, fp->clust);\r | |
53668523 | 4936 | }\r |
70702af1 | 4937 | }\r |
289f6a14 | 4938 | fp->obj.objsize = fp->fptr; /* Set file size to current read/write point */\r |
70702af1 | 4939 | fp->flag |= FA_MODIFIED;\r |
289f6a14 | 4940 | #if !FF_FS_TINY\r |
70702af1 | 4941 | if (res == FR_OK && (fp->flag & FA_DIRTY)) {\r |
289f6a14 | 4942 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) {\r |
70702af1 L |
4943 | res = FR_DISK_ERR;\r |
4944 | } else {\r | |
4945 | fp->flag &= (BYTE)~FA_DIRTY;\r | |
53668523 | 4946 | }\r |
53668523 | 4947 | }\r |
70702af1 L |
4948 | #endif\r |
4949 | if (res != FR_OK) ABORT(fs, res);\r | |
53668523 L |
4950 | }\r |
4951 | \r | |
70702af1 | 4952 | LEAVE_FF(fs, res);\r |
53668523 L |
4953 | }\r |
4954 | \r | |
4955 | \r | |
4956 | \r | |
4957 | \r | |
4958 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 4959 | /* Delete a File/Directory */\r |
53668523 L |
4960 | /*-----------------------------------------------------------------------*/\r |
4961 | \r | |
4962 | FRESULT f_unlink (\r | |
4963 | const TCHAR* path /* Pointer to the file or directory path */\r | |
4964 | )\r | |
4965 | {\r | |
4966 | FRESULT res;\r | |
5630b930 | 4967 | FATFS *fs;\r |
53668523 | 4968 | DIR dj, sdj;\r |
7b78a5a2 | 4969 | DWORD dclst = 0;\r |
289f6a14 L |
4970 | #if FF_FS_EXFAT\r |
4971 | FFOBJID obj;\r | |
70702af1 L |
4972 | #endif\r |
4973 | DEF_NAMBUF\r | |
53668523 L |
4974 | \r |
4975 | \r | |
70702af1 | 4976 | /* Get logical drive */\r |
5630b930 | 4977 | res = mount_volume(&path, &fs, FA_WRITE);\r |
53668523 | 4978 | if (res == FR_OK) {\r |
289f6a14 | 4979 | dj.obj.fs = fs;\r |
70702af1 | 4980 | INIT_NAMBUF(fs);\r |
53668523 | 4981 | res = follow_path(&dj, path); /* Follow the file path */\r |
289f6a14 | 4982 | if (FF_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) {\r |
53668523 | 4983 | res = FR_INVALID_NAME; /* Cannot remove dot entry */\r |
70702af1 | 4984 | }\r |
5630b930 L |
4985 | #if FF_FS_LOCK\r |
4986 | if (res == FR_OK) res = chk_share(&dj, 2); /* Check if it is an open object */\r | |
53668523 L |
4987 | #endif\r |
4988 | if (res == FR_OK) { /* The object is accessible */\r | |
70702af1 | 4989 | if (dj.fn[NSFLAG] & NS_NONAME) {\r |
7b78a5a2 | 4990 | res = FR_INVALID_NAME; /* Cannot remove the origin directory */\r |
53668523 | 4991 | } else {\r |
70702af1 | 4992 | if (dj.obj.attr & AM_RDO) {\r |
53668523 | 4993 | res = FR_DENIED; /* Cannot remove R/O object */\r |
70702af1 | 4994 | }\r |
53668523 | 4995 | }\r |
70702af1 | 4996 | if (res == FR_OK) {\r |
289f6a14 | 4997 | #if FF_FS_EXFAT\r |
70702af1 L |
4998 | obj.fs = fs;\r |
4999 | if (fs->fs_type == FS_EXFAT) {\r | |
289f6a14 L |
5000 | init_alloc_info(fs, &obj);\r |
5001 | dclst = obj.sclust;\r | |
70702af1 L |
5002 | } else\r |
5003 | #endif\r | |
5004 | {\r | |
5005 | dclst = ld_clust(fs, dj.dir);\r | |
5006 | }\r | |
289f6a14 L |
5007 | if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory? */\r |
5008 | #if FF_FS_RPATH != 0\r | |
5630b930 | 5009 | if (dclst == fs->cdir) { /* Is it the current directory? */\r |
70702af1 L |
5010 | res = FR_DENIED;\r |
5011 | } else\r | |
5012 | #endif\r | |
5013 | {\r | |
5630b930 | 5014 | sdj.obj.fs = fs; /* Open the sub-directory */\r |
70702af1 | 5015 | sdj.obj.sclust = dclst;\r |
289f6a14 | 5016 | #if FF_FS_EXFAT\r |
70702af1 L |
5017 | if (fs->fs_type == FS_EXFAT) {\r |
5018 | sdj.obj.objsize = obj.objsize;\r | |
5019 | sdj.obj.stat = obj.stat;\r | |
5020 | }\r | |
53668523 | 5021 | #endif\r |
70702af1 L |
5022 | res = dir_sdi(&sdj, 0);\r |
5023 | if (res == FR_OK) {\r | |
5630b930 | 5024 | res = DIR_READ_FILE(&sdj); /* Test if the directory is empty */\r |
70702af1 L |
5025 | if (res == FR_OK) res = FR_DENIED; /* Not empty? */\r |
5026 | if (res == FR_NO_FILE) res = FR_OK; /* Empty? */\r | |
5027 | }\r | |
53668523 L |
5028 | }\r |
5029 | }\r | |
5030 | }\r | |
5031 | if (res == FR_OK) {\r | |
70702af1 | 5032 | res = dir_remove(&dj); /* Remove the directory entry */\r |
289f6a14 L |
5033 | if (res == FR_OK && dclst != 0) { /* Remove the cluster chain if exist */\r |
5034 | #if FF_FS_EXFAT\r | |
70702af1 L |
5035 | res = remove_chain(&obj, dclst, 0);\r |
5036 | #else\r | |
5037 | res = remove_chain(&dj.obj, dclst, 0);\r | |
5038 | #endif\r | |
5039 | }\r | |
5040 | if (res == FR_OK) res = sync_fs(fs);\r | |
53668523 L |
5041 | }\r |
5042 | }\r | |
70702af1 | 5043 | FREE_NAMBUF();\r |
53668523 L |
5044 | }\r |
5045 | \r | |
70702af1 | 5046 | LEAVE_FF(fs, res);\r |
53668523 L |
5047 | }\r |
5048 | \r | |
5049 | \r | |
5050 | \r | |
5051 | \r | |
5052 | /*-----------------------------------------------------------------------*/\r | |
5053 | /* Create a Directory */\r | |
5054 | /*-----------------------------------------------------------------------*/\r | |
5055 | \r | |
5056 | FRESULT f_mkdir (\r | |
5057 | const TCHAR* path /* Pointer to the directory path */\r | |
5058 | )\r | |
5059 | {\r | |
5060 | FRESULT res;\r | |
70702af1 | 5061 | FATFS *fs;\r |
5630b930 L |
5062 | DIR dj;\r |
5063 | FFOBJID sobj;\r | |
289f6a14 | 5064 | DWORD dcl, pcl, tm;\r |
70702af1 | 5065 | DEF_NAMBUF\r |
53668523 L |
5066 | \r |
5067 | \r | |
5630b930 | 5068 | res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */\r |
53668523 | 5069 | if (res == FR_OK) {\r |
289f6a14 | 5070 | dj.obj.fs = fs;\r |
70702af1 | 5071 | INIT_NAMBUF(fs);\r |
53668523 | 5072 | res = follow_path(&dj, path); /* Follow the file path */\r |
5630b930 L |
5073 | if (res == FR_OK) res = FR_EXIST; /* Name collision? */\r |
5074 | if (FF_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT)) { /* Invalid name? */\r | |
53668523 | 5075 | res = FR_INVALID_NAME;\r |
70702af1 | 5076 | }\r |
5630b930 L |
5077 | if (res == FR_NO_FILE) { /* It is clear to create a new directory */\r |
5078 | sobj.fs = fs; /* New object id to create a new chain */\r | |
5079 | dcl = create_chain(&sobj, 0); /* Allocate a cluster for the new directory */\r | |
53668523 | 5080 | res = FR_OK;\r |
5630b930 L |
5081 | if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster? */\r |
5082 | if (dcl == 1) res = FR_INT_ERR; /* Any insanity? */\r | |
5083 | if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR; /* Disk error? */\r | |
70702af1 | 5084 | tm = GET_FATTIME();\r |
5630b930 | 5085 | if (res == FR_OK) {\r |
289f6a14 | 5086 | res = dir_clear(fs, dcl); /* Clean up the new table */\r |
5630b930 L |
5087 | if (res == FR_OK) {\r |
5088 | if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* Create dot entries (FAT only) */\r | |
5089 | memset(fs->win + DIR_Name, ' ', 11); /* Create "." entry */\r | |
5090 | fs->win[DIR_Name] = '.';\r | |
5091 | fs->win[DIR_Attr] = AM_DIR;\r | |
5092 | st_dword(fs->win + DIR_ModTime, tm);\r | |
5093 | st_clust(fs, fs->win, dcl);\r | |
5094 | memcpy(fs->win + SZDIRE, fs->win, SZDIRE); /* Create ".." entry */\r | |
5095 | fs->win[SZDIRE + 1] = '.'; pcl = dj.obj.sclust;\r | |
5096 | st_clust(fs, fs->win + SZDIRE, pcl);\r | |
5097 | fs->wflag = 1;\r | |
5098 | }\r | |
5099 | res = dir_register(&dj); /* Register the object to the parent directoy */\r | |
53668523 L |
5100 | }\r |
5101 | }\r | |
70702af1 | 5102 | if (res == FR_OK) {\r |
289f6a14 | 5103 | #if FF_FS_EXFAT\r |
70702af1 L |
5104 | if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */\r |
5105 | st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */\r | |
5106 | st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */\r | |
5630b930 L |
5107 | st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)fs->csize * SS(fs)); /* Directory size needs to be valid */\r |
5108 | st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)fs->csize * SS(fs));\r | |
289f6a14 | 5109 | fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */\r |
70702af1 L |
5110 | fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */\r |
5111 | res = store_xdir(&dj);\r | |
5112 | } else\r | |
5113 | #endif\r | |
5114 | {\r | |
5630b930 L |
5115 | st_dword(dj.dir + DIR_ModTime, tm); /* Created time */\r |
5116 | st_clust(fs, dj.dir, dcl); /* Table start cluster */\r | |
5117 | dj.dir[DIR_Attr] = AM_DIR; /* Attribute */\r | |
70702af1 L |
5118 | fs->wflag = 1;\r |
5119 | }\r | |
289f6a14 L |
5120 | if (res == FR_OK) {\r |
5121 | res = sync_fs(fs);\r | |
5122 | }\r | |
53668523 | 5123 | } else {\r |
5630b930 | 5124 | remove_chain(&sobj, dcl, 0); /* Could not register, remove the allocated cluster */\r |
53668523 L |
5125 | }\r |
5126 | }\r | |
70702af1 | 5127 | FREE_NAMBUF();\r |
53668523 L |
5128 | }\r |
5129 | \r | |
70702af1 | 5130 | LEAVE_FF(fs, res);\r |
53668523 L |
5131 | }\r |
5132 | \r | |
5133 | \r | |
5134 | \r | |
5135 | \r | |
5136 | /*-----------------------------------------------------------------------*/\r | |
70702af1 | 5137 | /* Rename a File/Directory */\r |
53668523 L |
5138 | /*-----------------------------------------------------------------------*/\r |
5139 | \r | |
70702af1 L |
5140 | FRESULT f_rename (\r |
5141 | const TCHAR* path_old, /* Pointer to the object name to be renamed */\r | |
5142 | const TCHAR* path_new /* Pointer to the new name */\r | |
53668523 L |
5143 | )\r |
5144 | {\r | |
5145 | FRESULT res;\r | |
70702af1 | 5146 | FATFS *fs;\r |
5630b930 | 5147 | DIR djo, djn;\r |
289f6a14 | 5148 | BYTE buf[FF_FS_EXFAT ? SZDIRE * 2 : SZDIRE], *dir;\r |
5630b930 | 5149 | LBA_t sect;\r |
70702af1 | 5150 | DEF_NAMBUF\r |
53668523 L |
5151 | \r |
5152 | \r | |
289f6a14 | 5153 | get_ldnumber(&path_new); /* Snip the drive number of new name off */\r |
5630b930 | 5154 | res = mount_volume(&path_old, &fs, FA_WRITE); /* Get logical drive of the old object */\r |
53668523 | 5155 | if (res == FR_OK) {\r |
70702af1 L |
5156 | djo.obj.fs = fs;\r |
5157 | INIT_NAMBUF(fs);\r | |
5630b930 | 5158 | res = follow_path(&djo, path_old); /* Check old object */\r |
70702af1 | 5159 | if (res == FR_OK && (djo.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check validity of name */\r |
5630b930 | 5160 | #if FF_FS_LOCK\r |
289f6a14 | 5161 | if (res == FR_OK) {\r |
5630b930 | 5162 | res = chk_share(&djo, 2);\r |
289f6a14 | 5163 | }\r |
70702af1 | 5164 | #endif\r |
5630b930 | 5165 | if (res == FR_OK) { /* Object to be renamed is found */\r |
289f6a14 L |
5166 | #if FF_FS_EXFAT\r |
5167 | if (fs->fs_type == FS_EXFAT) { /* At exFAT volume */\r | |
70702af1 L |
5168 | BYTE nf, nn;\r |
5169 | WORD nh;\r | |
5170 | \r | |
5630b930 L |
5171 | memcpy(buf, fs->dirbuf, SZDIRE * 2); /* Save 85+C0 entry of old object */\r |
5172 | memcpy(&djn, &djo, sizeof djo);\r | |
70702af1 L |
5173 | res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */\r |
5174 | if (res == FR_OK) { /* Is new name already in use by any other object? */\r | |
5175 | res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;\r | |
5176 | }\r | |
5177 | if (res == FR_NO_FILE) { /* It is a valid path and no name collision */\r | |
5178 | res = dir_register(&djn); /* Register the new entry */\r | |
5179 | if (res == FR_OK) {\r | |
5180 | nf = fs->dirbuf[XDIR_NumSec]; nn = fs->dirbuf[XDIR_NumName];\r | |
5181 | nh = ld_word(fs->dirbuf + XDIR_NameHash);\r | |
5630b930 | 5182 | memcpy(fs->dirbuf, buf, SZDIRE * 2); /* Restore 85+C0 entry */\r |
70702af1 L |
5183 | fs->dirbuf[XDIR_NumSec] = nf; fs->dirbuf[XDIR_NumName] = nn;\r |
5184 | st_word(fs->dirbuf + XDIR_NameHash, nh);\r | |
289f6a14 L |
5185 | if (!(fs->dirbuf[XDIR_Attr] & AM_DIR)) fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */\r |
5186 | /* Start of critical section where an interruption can cause a cross-link */\r | |
70702af1 L |
5187 | res = store_xdir(&djn);\r |
5188 | }\r | |
5189 | }\r | |
5190 | } else\r | |
5191 | #endif\r | |
289f6a14 | 5192 | { /* At FAT/FAT32 volume */\r |
5630b930 L |
5193 | memcpy(buf, djo.dir, SZDIRE); /* Save directory entry of the object */\r |
5194 | memcpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */\r | |
70702af1 L |
5195 | res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */\r |
5196 | if (res == FR_OK) { /* Is new name already in use by any other object? */\r | |
5197 | res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;\r | |
5198 | }\r | |
5199 | if (res == FR_NO_FILE) { /* It is a valid path and no name collision */\r | |
5200 | res = dir_register(&djn); /* Register the new entry */\r | |
5201 | if (res == FR_OK) {\r | |
289f6a14 | 5202 | dir = djn.dir; /* Copy directory entry of the object except name */\r |
5630b930 | 5203 | memcpy(dir + 13, buf + 13, SZDIRE - 13);\r |
289f6a14 L |
5204 | dir[DIR_Attr] = buf[DIR_Attr];\r |
5205 | if (!(dir[DIR_Attr] & AM_DIR)) dir[DIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */\r | |
70702af1 L |
5206 | fs->wflag = 1;\r |
5207 | if ((dir[DIR_Attr] & AM_DIR) && djo.obj.sclust != djn.obj.sclust) { /* Update .. entry in the sub-directory if needed */\r | |
5630b930 L |
5208 | sect = clst2sect(fs, ld_clust(fs, dir));\r |
5209 | if (sect == 0) {\r | |
70702af1 L |
5210 | res = FR_INT_ERR;\r |
5211 | } else {\r | |
289f6a14 | 5212 | /* Start of critical section where an interruption can cause a cross-link */\r |
5630b930 | 5213 | res = move_window(fs, sect);\r |
70702af1 L |
5214 | dir = fs->win + SZDIRE * 1; /* Ptr to .. entry */\r |
5215 | if (res == FR_OK && dir[1] == '.') {\r | |
5216 | st_clust(fs, dir, djn.obj.sclust);\r | |
5217 | fs->wflag = 1;\r | |
5218 | }\r | |
5219 | }\r | |
5220 | }\r | |
5221 | }\r | |
5222 | }\r | |
5223 | }\r | |
5224 | if (res == FR_OK) {\r | |
5225 | res = dir_remove(&djo); /* Remove old entry */\r | |
5226 | if (res == FR_OK) {\r | |
5227 | res = sync_fs(fs);\r | |
5228 | }\r | |
53668523 | 5229 | }\r |
289f6a14 | 5230 | /* End of the critical section */\r |
53668523 | 5231 | }\r |
70702af1 | 5232 | FREE_NAMBUF();\r |
53668523 L |
5233 | }\r |
5234 | \r | |
70702af1 | 5235 | LEAVE_FF(fs, res);\r |
53668523 L |
5236 | }\r |
5237 | \r | |
289f6a14 L |
5238 | #endif /* !FF_FS_READONLY */\r |
5239 | #endif /* FF_FS_MINIMIZE == 0 */\r | |
5240 | #endif /* FF_FS_MINIMIZE <= 1 */\r | |
5241 | #endif /* FF_FS_MINIMIZE <= 2 */\r | |
53668523 L |
5242 | \r |
5243 | \r | |
5244 | \r | |
289f6a14 | 5245 | #if FF_USE_CHMOD && !FF_FS_READONLY\r |
53668523 | 5246 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 5247 | /* Change Attribute */\r |
53668523 L |
5248 | /*-----------------------------------------------------------------------*/\r |
5249 | \r | |
70702af1 L |
5250 | FRESULT f_chmod (\r |
5251 | const TCHAR* path, /* Pointer to the file path */\r | |
5252 | BYTE attr, /* Attribute bits */\r | |
5253 | BYTE mask /* Attribute mask to change */\r | |
53668523 L |
5254 | )\r |
5255 | {\r | |
5256 | FRESULT res;\r | |
70702af1 | 5257 | FATFS *fs;\r |
5630b930 | 5258 | DIR dj;\r |
70702af1 | 5259 | DEF_NAMBUF\r |
53668523 L |
5260 | \r |
5261 | \r | |
5630b930 | 5262 | res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */\r |
53668523 | 5263 | if (res == FR_OK) {\r |
289f6a14 | 5264 | dj.obj.fs = fs;\r |
70702af1 L |
5265 | INIT_NAMBUF(fs);\r |
5266 | res = follow_path(&dj, path); /* Follow the file path */\r | |
5267 | if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */\r | |
5268 | if (res == FR_OK) {\r | |
5269 | mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */\r | |
289f6a14 | 5270 | #if FF_FS_EXFAT\r |
70702af1 L |
5271 | if (fs->fs_type == FS_EXFAT) {\r |
5272 | fs->dirbuf[XDIR_Attr] = (attr & mask) | (fs->dirbuf[XDIR_Attr] & (BYTE)~mask); /* Apply attribute change */\r | |
5273 | res = store_xdir(&dj);\r | |
5274 | } else\r | |
53668523 | 5275 | #endif\r |
70702af1 L |
5276 | {\r |
5277 | dj.dir[DIR_Attr] = (attr & mask) | (dj.dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */\r | |
5278 | fs->wflag = 1;\r | |
53668523 | 5279 | }\r |
289f6a14 L |
5280 | if (res == FR_OK) {\r |
5281 | res = sync_fs(fs);\r | |
5282 | }\r | |
53668523 | 5283 | }\r |
70702af1 | 5284 | FREE_NAMBUF();\r |
53668523 L |
5285 | }\r |
5286 | \r | |
70702af1 | 5287 | LEAVE_FF(fs, res);\r |
53668523 L |
5288 | }\r |
5289 | \r | |
7b78a5a2 L |
5290 | \r |
5291 | \r | |
5292 | \r | |
5293 | /*-----------------------------------------------------------------------*/\r | |
5294 | /* Change Timestamp */\r | |
5295 | /*-----------------------------------------------------------------------*/\r | |
5296 | \r | |
5297 | FRESULT f_utime (\r | |
5298 | const TCHAR* path, /* Pointer to the file/directory name */\r | |
289f6a14 | 5299 | const FILINFO* fno /* Pointer to the timestamp to be set */\r |
7b78a5a2 L |
5300 | )\r |
5301 | {\r | |
5302 | FRESULT res;\r | |
70702af1 | 5303 | FATFS *fs;\r |
5630b930 | 5304 | DIR dj;\r |
70702af1 | 5305 | DEF_NAMBUF\r |
7b78a5a2 L |
5306 | \r |
5307 | \r | |
5630b930 | 5308 | res = mount_volume(&path, &fs, FA_WRITE); /* Get logical drive */\r |
7b78a5a2 | 5309 | if (res == FR_OK) {\r |
289f6a14 | 5310 | dj.obj.fs = fs;\r |
70702af1 | 5311 | INIT_NAMBUF(fs);\r |
7b78a5a2 | 5312 | res = follow_path(&dj, path); /* Follow the file path */\r |
70702af1 | 5313 | if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */\r |
7b78a5a2 | 5314 | if (res == FR_OK) {\r |
289f6a14 | 5315 | #if FF_FS_EXFAT\r |
70702af1 L |
5316 | if (fs->fs_type == FS_EXFAT) {\r |
5317 | st_dword(fs->dirbuf + XDIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);\r | |
5318 | res = store_xdir(&dj);\r | |
5319 | } else\r | |
5320 | #endif\r | |
5321 | {\r | |
5322 | st_dword(dj.dir + DIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);\r | |
5323 | fs->wflag = 1;\r | |
7b78a5a2 | 5324 | }\r |
289f6a14 L |
5325 | if (res == FR_OK) {\r |
5326 | res = sync_fs(fs);\r | |
5327 | }\r | |
7b78a5a2 | 5328 | }\r |
70702af1 | 5329 | FREE_NAMBUF();\r |
7b78a5a2 L |
5330 | }\r |
5331 | \r | |
70702af1 | 5332 | LEAVE_FF(fs, res);\r |
7b78a5a2 L |
5333 | }\r |
5334 | \r | |
289f6a14 | 5335 | #endif /* FF_USE_CHMOD && !FF_FS_READONLY */\r |
53668523 L |
5336 | \r |
5337 | \r | |
5338 | \r | |
289f6a14 | 5339 | #if FF_USE_LABEL\r |
53668523 | 5340 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 5341 | /* Get Volume Label */\r |
53668523 L |
5342 | /*-----------------------------------------------------------------------*/\r |
5343 | \r | |
5344 | FRESULT f_getlabel (\r | |
289f6a14 L |
5345 | const TCHAR* path, /* Logical drive number */\r |
5346 | TCHAR* label, /* Buffer to store the volume label */\r | |
5347 | DWORD* vsn /* Variable to store the volume serial number */\r | |
53668523 L |
5348 | )\r |
5349 | {\r | |
5350 | FRESULT res;\r | |
70702af1 | 5351 | FATFS *fs;\r |
5630b930 | 5352 | DIR dj;\r |
70702af1 | 5353 | UINT si, di;\r |
289f6a14 | 5354 | WCHAR wc;\r |
53668523 | 5355 | \r |
70702af1 | 5356 | /* Get logical drive */\r |
5630b930 | 5357 | res = mount_volume(&path, &fs, 0);\r |
53668523 L |
5358 | \r |
5359 | /* Get volume label */\r | |
5360 | if (res == FR_OK && label) {\r | |
70702af1 | 5361 | dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */\r |
53668523 L |
5362 | res = dir_sdi(&dj, 0);\r |
5363 | if (res == FR_OK) {\r | |
5630b930 | 5364 | res = DIR_READ_LABEL(&dj); /* Find a volume label entry */\r |
70702af1 | 5365 | if (res == FR_OK) {\r |
289f6a14 | 5366 | #if FF_FS_EXFAT\r |
70702af1 | 5367 | if (fs->fs_type == FS_EXFAT) {\r |
289f6a14 | 5368 | WCHAR hs;\r |
5630b930 | 5369 | UINT nw;\r |
289f6a14 L |
5370 | \r |
5371 | for (si = di = hs = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */\r | |
5372 | wc = ld_word(dj.dir + XDIR_Label + si * 2);\r | |
5373 | if (hs == 0 && IsSurrogate(wc)) { /* Is the code a surrogate? */\r | |
5374 | hs = wc; continue;\r | |
5375 | }\r | |
5630b930 L |
5376 | nw = put_utf((DWORD)hs << 16 | wc, &label[di], 4); /* Store it in API encoding */\r |
5377 | if (nw == 0) { /* Encode error? */\r | |
5378 | di = 0; break;\r | |
5379 | }\r | |
5380 | di += nw;\r | |
289f6a14 | 5381 | hs = 0;\r |
70702af1 | 5382 | }\r |
289f6a14 | 5383 | if (hs != 0) di = 0; /* Broken surrogate pair? */\r |
70702af1 L |
5384 | label[di] = 0;\r |
5385 | } else\r | |
5386 | #endif\r | |
5387 | {\r | |
289f6a14 L |
5388 | si = di = 0; /* Extract volume label from AM_VOL entry */\r |
5389 | while (si < 11) {\r | |
5390 | wc = dj.dir[si++];\r | |
5391 | #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode output */\r | |
5392 | if (dbc_1st((BYTE)wc) && si < 11) wc = wc << 8 | dj.dir[si++]; /* Is it a DBC? */\r | |
5630b930 L |
5393 | wc = ff_oem2uni(wc, CODEPAGE); /* Convert it into Unicode */\r |
5394 | if (wc == 0) { /* Invalid char in current code page? */\r | |
5395 | di = 0; break;\r | |
5396 | }\r | |
5397 | di += put_utf(wc, &label[di], 4); /* Store it in Unicode */\r | |
289f6a14 L |
5398 | #else /* ANSI/OEM output */\r |
5399 | label[di++] = (TCHAR)wc;\r | |
70702af1 | 5400 | #endif\r |
289f6a14 | 5401 | }\r |
70702af1 L |
5402 | do { /* Truncate trailing spaces */\r |
5403 | label[di] = 0;\r | |
5404 | if (di == 0) break;\r | |
5405 | } while (label[--di] == ' ');\r | |
5406 | }\r | |
53668523 L |
5407 | }\r |
5408 | }\r | |
70702af1 L |
5409 | if (res == FR_NO_FILE) { /* No label entry and return nul string */\r |
5410 | label[0] = 0;\r | |
5411 | res = FR_OK;\r | |
5412 | }\r | |
53668523 L |
5413 | }\r |
5414 | \r | |
5415 | /* Get volume serial number */\r | |
5416 | if (res == FR_OK && vsn) {\r | |
70702af1 | 5417 | res = move_window(fs, fs->volbase);\r |
53668523 | 5418 | if (res == FR_OK) {\r |
70702af1 | 5419 | switch (fs->fs_type) {\r |
289f6a14 | 5420 | case FS_EXFAT:\r |
5630b930 L |
5421 | di = BPB_VolIDEx;\r |
5422 | break;\r | |
289f6a14 L |
5423 | \r |
5424 | case FS_FAT32:\r | |
5630b930 L |
5425 | di = BS_VolID32;\r |
5426 | break;\r | |
289f6a14 L |
5427 | \r |
5428 | default:\r | |
5429 | di = BS_VolID;\r | |
70702af1 L |
5430 | }\r |
5431 | *vsn = ld_dword(fs->win + di);\r | |
53668523 L |
5432 | }\r |
5433 | }\r | |
5434 | \r | |
70702af1 | 5435 | LEAVE_FF(fs, res);\r |
53668523 L |
5436 | }\r |
5437 | \r | |
5438 | \r | |
5439 | \r | |
289f6a14 | 5440 | #if !FF_FS_READONLY\r |
53668523 | 5441 | /*-----------------------------------------------------------------------*/\r |
70702af1 | 5442 | /* Set Volume Label */\r |
53668523 L |
5443 | /*-----------------------------------------------------------------------*/\r |
5444 | \r | |
5445 | FRESULT f_setlabel (\r | |
289f6a14 | 5446 | const TCHAR* label /* Volume label to set with heading logical drive number */\r |
53668523 L |
5447 | )\r |
5448 | {\r | |
5449 | FRESULT res;\r | |
70702af1 | 5450 | FATFS *fs;\r |
5630b930 | 5451 | DIR dj;\r |
70702af1 | 5452 | BYTE dirvn[22];\r |
289f6a14 L |
5453 | UINT di;\r |
5454 | WCHAR wc;\r | |
5630b930 | 5455 | static const char badchr[18] = "+.,;=[]" "/*:<>|\\\"\?\x7F"; /* [0..16] for FAT, [7..16] for exFAT */\r |
289f6a14 L |
5456 | #if FF_USE_LFN\r |
5457 | DWORD dc;\r | |
5458 | #endif\r | |
53668523 | 5459 | \r |
70702af1 | 5460 | /* Get logical drive */\r |
5630b930 | 5461 | res = mount_volume(&label, &fs, FA_WRITE);\r |
70702af1 | 5462 | if (res != FR_OK) LEAVE_FF(fs, res);\r |
70702af1 | 5463 | \r |
289f6a14 | 5464 | #if FF_FS_EXFAT\r |
70702af1 | 5465 | if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */\r |
5630b930 | 5466 | memset(dirvn, 0, 22);\r |
289f6a14 L |
5467 | di = 0;\r |
5468 | while ((UINT)*label >= ' ') { /* Create volume label */\r | |
5469 | dc = tchar2uni(&label); /* Get a Unicode character */\r | |
5470 | if (dc >= 0x10000) {\r | |
5471 | if (dc == 0xFFFFFFFF || di >= 10) { /* Wrong surrogate or buffer overflow */\r | |
5472 | dc = 0;\r | |
5473 | } else {\r | |
5474 | st_word(dirvn + di * 2, (WCHAR)(dc >> 16)); di++;\r | |
5475 | }\r | |
70702af1 | 5476 | }\r |
5630b930 | 5477 | if (dc == 0 || strchr(&badchr[7], (int)dc) || di >= 11) { /* Check validity of the volume label */\r |
70702af1 L |
5478 | LEAVE_FF(fs, FR_INVALID_NAME);\r |
5479 | }\r | |
289f6a14 | 5480 | st_word(dirvn + di * 2, (WCHAR)dc); di++;\r |
70702af1 | 5481 | }\r |
70702af1 L |
5482 | } else\r |
5483 | #endif\r | |
289f6a14 | 5484 | { /* On the FAT/FAT32 volume */\r |
5630b930 | 5485 | memset(dirvn, ' ', 11);\r |
289f6a14 L |
5486 | di = 0;\r |
5487 | while ((UINT)*label >= ' ') { /* Create volume label */\r | |
5488 | #if FF_USE_LFN\r | |
5489 | dc = tchar2uni(&label);\r | |
5490 | wc = (dc < 0x10000) ? ff_uni2oem(ff_wtoupper(dc), CODEPAGE) : 0;\r | |
5491 | #else /* ANSI/OEM input */\r | |
5492 | wc = (BYTE)*label++;\r | |
5493 | if (dbc_1st((BYTE)wc)) wc = dbc_2nd((BYTE)*label) ? wc << 8 | (BYTE)*label++ : 0;\r | |
5494 | if (IsLower(wc)) wc -= 0x20; /* To upper ASCII characters */\r | |
5495 | #if FF_CODE_PAGE == 0\r | |
5496 | if (ExCvt && wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */\r | |
5497 | #elif FF_CODE_PAGE < 900\r | |
5498 | if (wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */\r | |
5499 | #endif\r | |
5500 | #endif\r | |
5630b930 | 5501 | if (wc == 0 || strchr(&badchr[0], (int)wc) || di >= (UINT)((wc >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */\r |
289f6a14 L |
5502 | LEAVE_FF(fs, FR_INVALID_NAME);\r |
5503 | }\r | |
5504 | if (wc >= 0x100) dirvn[di++] = (BYTE)(wc >> 8);\r | |
5505 | dirvn[di++] = (BYTE)wc;\r | |
70702af1 | 5506 | }\r |
289f6a14 L |
5507 | if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */\r |
5508 | while (di && dirvn[di - 1] == ' ') di--; /* Snip trailing spaces */\r | |
53668523 L |
5509 | }\r |
5510 | \r | |
5511 | /* Set volume label */\r | |
289f6a14 | 5512 | dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */\r |
53668523 L |
5513 | res = dir_sdi(&dj, 0);\r |
5514 | if (res == FR_OK) {\r | |
5630b930 | 5515 | res = DIR_READ_LABEL(&dj); /* Get volume label entry */\r |
70702af1 | 5516 | if (res == FR_OK) {\r |
289f6a14 L |
5517 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {\r |
5518 | dj.dir[XDIR_NumLabel] = (BYTE)di; /* Change the volume label */\r | |
5630b930 | 5519 | memcpy(dj.dir + XDIR_Label, dirvn, 22);\r |
53668523 | 5520 | } else {\r |
289f6a14 | 5521 | if (di != 0) {\r |
5630b930 | 5522 | memcpy(dj.dir, dirvn, 11); /* Change the volume label */\r |
70702af1 L |
5523 | } else {\r |
5524 | dj.dir[DIR_Name] = DDEM; /* Remove the volume label */\r | |
5525 | }\r | |
53668523 | 5526 | }\r |
70702af1 L |
5527 | fs->wflag = 1;\r |
5528 | res = sync_fs(fs);\r | |
289f6a14 | 5529 | } else { /* No volume label entry or an error */\r |
53668523 L |
5530 | if (res == FR_NO_FILE) {\r |
5531 | res = FR_OK;\r | |
289f6a14 | 5532 | if (di != 0) { /* Create a volume label entry */\r |
70702af1 | 5533 | res = dir_alloc(&dj, 1); /* Allocate an entry */\r |
53668523 | 5534 | if (res == FR_OK) {\r |
5630b930 | 5535 | memset(dj.dir, 0, SZDIRE); /* Clean the entry */\r |
289f6a14 | 5536 | if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {\r |
5630b930 | 5537 | dj.dir[XDIR_Type] = ET_VLABEL; /* Create volume label entry */\r |
289f6a14 | 5538 | dj.dir[XDIR_NumLabel] = (BYTE)di;\r |
5630b930 | 5539 | memcpy(dj.dir + XDIR_Label, dirvn, 22);\r |
70702af1 L |
5540 | } else {\r |
5541 | dj.dir[DIR_Attr] = AM_VOL; /* Create volume label entry */\r | |
5630b930 | 5542 | memcpy(dj.dir, dirvn, 11);\r |
70702af1 L |
5543 | }\r |
5544 | fs->wflag = 1;\r | |
5545 | res = sync_fs(fs);\r | |
53668523 L |
5546 | }\r |
5547 | }\r | |
5548 | }\r | |
5549 | }\r | |
5550 | }\r | |
5551 | \r | |
70702af1 | 5552 | LEAVE_FF(fs, res);\r |
53668523 L |
5553 | }\r |
5554 | \r | |
289f6a14 L |
5555 | #endif /* !FF_FS_READONLY */\r |
5556 | #endif /* FF_USE_LABEL */\r | |
53668523 L |
5557 | \r |
5558 | \r | |
5559 | \r | |
289f6a14 | 5560 | #if FF_USE_EXPAND && !FF_FS_READONLY\r |
70702af1 L |
5561 | /*-----------------------------------------------------------------------*/\r |
5562 | /* Allocate a Contiguous Blocks to the File */\r | |
5563 | /*-----------------------------------------------------------------------*/\r | |
5564 | \r | |
5565 | FRESULT f_expand (\r | |
5566 | FIL* fp, /* Pointer to the file object */\r | |
5567 | FSIZE_t fsz, /* File size to be expanded to */\r | |
5568 | BYTE opt /* Operation mode 0:Find and prepare or 1:Find and allocate */\r | |
5569 | )\r | |
5570 | {\r | |
5571 | FRESULT res;\r | |
5572 | FATFS *fs;\r | |
5573 | DWORD n, clst, stcl, scl, ncl, tcl, lclst;\r | |
5574 | \r | |
5575 | \r | |
5576 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r | |
5577 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
5578 | if (fsz == 0 || fp->obj.objsize != 0 || !(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED);\r | |
289f6a14 | 5579 | #if FF_FS_EXFAT\r |
70702af1 L |
5580 | if (fs->fs_type != FS_EXFAT && fsz >= 0x100000000) LEAVE_FF(fs, FR_DENIED); /* Check if in size limit */\r |
5581 | #endif\r | |
5582 | n = (DWORD)fs->csize * SS(fs); /* Cluster size */\r | |
5583 | tcl = (DWORD)(fsz / n) + ((fsz & (n - 1)) ? 1 : 0); /* Number of clusters required */\r | |
5584 | stcl = fs->last_clst; lclst = 0;\r | |
5585 | if (stcl < 2 || stcl >= fs->n_fatent) stcl = 2;\r | |
5586 | \r | |
289f6a14 | 5587 | #if FF_FS_EXFAT\r |
70702af1 L |
5588 | if (fs->fs_type == FS_EXFAT) {\r |
5589 | scl = find_bitmap(fs, stcl, tcl); /* Find a contiguous cluster block */\r | |
5590 | if (scl == 0) res = FR_DENIED; /* No contiguous cluster block was found */\r | |
5591 | if (scl == 0xFFFFFFFF) res = FR_DISK_ERR;\r | |
289f6a14 L |
5592 | if (res == FR_OK) { /* A contiguous free area is found */\r |
5593 | if (opt) { /* Allocate it now */\r | |
70702af1 L |
5594 | res = change_bitmap(fs, scl, tcl, 1); /* Mark the cluster block 'in use' */\r |
5595 | lclst = scl + tcl - 1;\r | |
289f6a14 | 5596 | } else { /* Set it as suggested point for next allocation */\r |
70702af1 L |
5597 | lclst = scl - 1;\r |
5598 | }\r | |
5599 | }\r | |
5600 | } else\r | |
5601 | #endif\r | |
5602 | {\r | |
5603 | scl = clst = stcl; ncl = 0;\r | |
5604 | for (;;) { /* Find a contiguous cluster block */\r | |
5605 | n = get_fat(&fp->obj, clst);\r | |
5606 | if (++clst >= fs->n_fatent) clst = 2;\r | |
5630b930 L |
5607 | if (n == 1) {\r |
5608 | res = FR_INT_ERR; break;\r | |
5609 | }\r | |
5610 | if (n == 0xFFFFFFFF) {\r | |
5611 | res = FR_DISK_ERR; break;\r | |
5612 | }\r | |
70702af1 L |
5613 | if (n == 0) { /* Is it a free cluster? */\r |
5614 | if (++ncl == tcl) break; /* Break if a contiguous cluster block is found */\r | |
5615 | } else {\r | |
5616 | scl = clst; ncl = 0; /* Not a free cluster */\r | |
5617 | }\r | |
5630b930 L |
5618 | if (clst == stcl) { /* No contiguous cluster? */\r |
5619 | res = FR_DENIED; break;\r | |
5620 | }\r | |
70702af1 | 5621 | }\r |
289f6a14 L |
5622 | if (res == FR_OK) { /* A contiguous free area is found */\r |
5623 | if (opt) { /* Allocate it now */\r | |
70702af1 L |
5624 | for (clst = scl, n = tcl; n; clst++, n--) { /* Create a cluster chain on the FAT */\r |
5625 | res = put_fat(fs, clst, (n == 1) ? 0xFFFFFFFF : clst + 1);\r | |
5626 | if (res != FR_OK) break;\r | |
5627 | lclst = clst;\r | |
5628 | }\r | |
289f6a14 | 5629 | } else { /* Set it as suggested point for next allocation */\r |
70702af1 L |
5630 | lclst = scl - 1;\r |
5631 | }\r | |
5632 | }\r | |
5633 | }\r | |
5634 | \r | |
5635 | if (res == FR_OK) {\r | |
5636 | fs->last_clst = lclst; /* Set suggested start cluster to start next */\r | |
289f6a14 | 5637 | if (opt) { /* Is it allocated now? */\r |
70702af1 L |
5638 | fp->obj.sclust = scl; /* Update object allocation information */\r |
5639 | fp->obj.objsize = fsz;\r | |
289f6a14 | 5640 | if (FF_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */\r |
70702af1 | 5641 | fp->flag |= FA_MODIFIED;\r |
289f6a14 | 5642 | if (fs->free_clst <= fs->n_fatent - 2) { /* Update FSINFO */\r |
70702af1 L |
5643 | fs->free_clst -= tcl;\r |
5644 | fs->fsi_flag |= 1;\r | |
5645 | }\r | |
5646 | }\r | |
5647 | }\r | |
5648 | \r | |
5649 | LEAVE_FF(fs, res);\r | |
5650 | }\r | |
5651 | \r | |
289f6a14 | 5652 | #endif /* FF_USE_EXPAND && !FF_FS_READONLY */\r |
70702af1 L |
5653 | \r |
5654 | \r | |
5655 | \r | |
289f6a14 | 5656 | #if FF_USE_FORWARD\r |
53668523 | 5657 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 5658 | /* Forward Data to the Stream Directly */\r |
53668523 | 5659 | /*-----------------------------------------------------------------------*/\r |
53668523 L |
5660 | \r |
5661 | FRESULT f_forward (\r | |
5662 | FIL* fp, /* Pointer to the file object */\r | |
5663 | UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */\r | |
5664 | UINT btf, /* Number of bytes to forward */\r | |
5665 | UINT* bf /* Pointer to number of bytes forwarded */\r | |
5666 | )\r | |
5667 | {\r | |
5668 | FRESULT res;\r | |
70702af1 | 5669 | FATFS *fs;\r |
5630b930 L |
5670 | DWORD clst;\r |
5671 | LBA_t sect;\r | |
70702af1 L |
5672 | FSIZE_t remain;\r |
5673 | UINT rcnt, csect;\r | |
5674 | BYTE *dbuf;\r | |
53668523 L |
5675 | \r |
5676 | \r | |
5677 | *bf = 0; /* Clear transfer byte counter */\r | |
70702af1 L |
5678 | res = validate(&fp->obj, &fs); /* Check validity of the file object */\r |
5679 | if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);\r | |
5680 | if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */\r | |
53668523 | 5681 | \r |
70702af1 | 5682 | remain = fp->obj.objsize - fp->fptr;\r |
53668523 L |
5683 | if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */\r |
5684 | \r | |
5630b930 | 5685 | for ( ; btf > 0 && (*func)(0, 0); fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) { /* Repeat until all data transferred or stream goes busy */\r |
70702af1 L |
5686 | csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */\r |
5687 | if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */\r | |
5688 | if (csect == 0) { /* On the cluster boundary? */\r | |
53668523 | 5689 | clst = (fp->fptr == 0) ? /* On the top of the file? */\r |
70702af1 L |
5690 | fp->obj.sclust : get_fat(&fp->obj, fp->clust);\r |
5691 | if (clst <= 1) ABORT(fs, FR_INT_ERR);\r | |
5692 | if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);\r | |
53668523 L |
5693 | fp->clust = clst; /* Update current cluster */\r |
5694 | }\r | |
5695 | }\r | |
289f6a14 L |
5696 | sect = clst2sect(fs, fp->clust); /* Get current data sector */\r |
5697 | if (sect == 0) ABORT(fs, FR_INT_ERR);\r | |
53668523 | 5698 | sect += csect;\r |
289f6a14 | 5699 | #if FF_FS_TINY\r |
70702af1 L |
5700 | if (move_window(fs, sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window to the file data */\r |
5701 | dbuf = fs->win;\r | |
5702 | #else\r | |
5703 | if (fp->sect != sect) { /* Fill sector cache with file data */\r | |
289f6a14 | 5704 | #if !FF_FS_READONLY\r |
70702af1 | 5705 | if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */\r |
289f6a14 | 5706 | if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 L |
5707 | fp->flag &= (BYTE)~FA_DIRTY;\r |
5708 | }\r | |
5709 | #endif\r | |
289f6a14 | 5710 | if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);\r |
70702af1 L |
5711 | }\r |
5712 | dbuf = fp->buf;\r | |
5713 | #endif\r | |
5714 | fp->sect = sect;\r | |
5630b930 | 5715 | rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes remains in the sector */\r |
70702af1 L |
5716 | if (rcnt > btf) rcnt = btf; /* Clip it by btr if needed */\r |
5717 | rcnt = (*func)(dbuf + ((UINT)fp->fptr % SS(fs)), rcnt); /* Forward the file data */\r | |
289f6a14 | 5718 | if (rcnt == 0) ABORT(fs, FR_INT_ERR);\r |
53668523 L |
5719 | }\r |
5720 | \r | |
70702af1 | 5721 | LEAVE_FF(fs, FR_OK);\r |
53668523 | 5722 | }\r |
289f6a14 | 5723 | #endif /* FF_USE_FORWARD */\r |
53668523 L |
5724 | \r |
5725 | \r | |
5726 | \r | |
5630b930 | 5727 | #if !FF_FS_READONLY && FF_USE_MKFS\r |
53668523 | 5728 | /*-----------------------------------------------------------------------*/\r |
5630b930 | 5729 | /* Create FAT/exFAT volume (with sub-functions) */\r |
53668523 | 5730 | /*-----------------------------------------------------------------------*/\r |
53668523 | 5731 | \r |
5630b930 L |
5732 | #define N_SEC_TRACK 63 /* Sectors per track for determination of drive CHS */\r |
5733 | #define GPT_ALIGN 0x100000 /* Alignment of partitions in GPT [byte] (>=128KB) */\r | |
5734 | #define GPT_ITEMS 128 /* Number of GPT table size (>=128, sector aligned) */\r | |
5735 | \r | |
5736 | \r | |
5737 | /* Create partitions on the physical drive in format of MBR or GPT */\r | |
5738 | \r | |
5739 | static FRESULT create_partition (\r | |
5740 | BYTE drv, /* Physical drive number */\r | |
5741 | const LBA_t plst[], /* Partition list */\r | |
5742 | BYTE sys, /* System ID for each partition (for only MBR) */\r | |
5743 | BYTE *buf /* Working buffer for a sector */\r | |
5744 | )\r | |
5745 | {\r | |
5746 | UINT i, cy;\r | |
5747 | LBA_t sz_drv;\r | |
5748 | DWORD sz_drv32, nxt_alloc32, sz_part32;\r | |
5749 | BYTE *pte;\r | |
5750 | BYTE hd, n_hd, sc, n_sc;\r | |
5751 | \r | |
5752 | /* Get physical drive size */\r | |
5753 | if (disk_ioctl(drv, GET_SECTOR_COUNT, &sz_drv) != RES_OK) return FR_DISK_ERR;\r | |
5754 | \r | |
5755 | #if FF_LBA64\r | |
5756 | if (sz_drv >= FF_MIN_GPT) { /* Create partitions in GPT format */\r | |
5757 | WORD ss;\r | |
5758 | UINT sz_ptbl, pi, si, ofs;\r | |
5759 | DWORD bcc, rnd, align;\r | |
5760 | QWORD nxt_alloc, sz_part, sz_pool, top_bpt;\r | |
5761 | static const BYTE gpt_mbr[16] = {0x00, 0x00, 0x02, 0x00, 0xEE, 0xFE, 0xFF, 0x00, 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF};\r | |
5762 | \r | |
5763 | #if FF_MAX_SS != FF_MIN_SS\r | |
5764 | if (disk_ioctl(drv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR; /* Get sector size */\r | |
5765 | if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR;\r | |
5766 | #else\r | |
5767 | ss = FF_MAX_SS;\r | |
5768 | #endif\r | |
5769 | rnd = (DWORD)sz_drv + GET_FATTIME(); /* Random seed */\r | |
5770 | align = GPT_ALIGN / ss; /* Partition alignment for GPT [sector] */\r | |
5771 | sz_ptbl = GPT_ITEMS * SZ_GPTE / ss; /* Size of partition table [sector] */\r | |
5772 | top_bpt = sz_drv - sz_ptbl - 1; /* Backup partition table start sector */\r | |
5773 | nxt_alloc = 2 + sz_ptbl; /* First allocatable sector */\r | |
5774 | sz_pool = top_bpt - nxt_alloc; /* Size of allocatable area */\r | |
5775 | bcc = 0xFFFFFFFF; sz_part = 1;\r | |
5776 | pi = si = 0; /* partition table index, size table index */\r | |
5777 | do {\r | |
5778 | if (pi * SZ_GPTE % ss == 0) memset(buf, 0, ss); /* Clean the buffer if needed */\r | |
5779 | if (sz_part != 0) { /* Is the size table not termintated? */\r | |
5780 | nxt_alloc = (nxt_alloc + align - 1) & ((QWORD)0 - align); /* Align partition start */\r | |
5781 | sz_part = plst[si++]; /* Get a partition size */\r | |
5782 | if (sz_part <= 100) { /* Is the size in percentage? */\r | |
5783 | sz_part = sz_pool * sz_part / 100;\r | |
5784 | sz_part = (sz_part + align - 1) & ((QWORD)0 - align); /* Align partition end (only if in percentage) */\r | |
5785 | }\r | |
5786 | if (nxt_alloc + sz_part > top_bpt) { /* Clip the size at end of the pool */\r | |
5787 | sz_part = (nxt_alloc < top_bpt) ? top_bpt - nxt_alloc : 0;\r | |
5788 | }\r | |
5789 | }\r | |
5790 | if (sz_part != 0) { /* Add a partition? */\r | |
5791 | ofs = pi * SZ_GPTE % ss;\r | |
5792 | memcpy(buf + ofs + GPTE_PtGuid, GUID_MS_Basic, 16); /* Set partition GUID (Microsoft Basic Data) */\r | |
5793 | rnd = make_rand(rnd, buf + ofs + GPTE_UpGuid, 16); /* Set unique partition GUID */\r | |
5794 | st_qword(buf + ofs + GPTE_FstLba, nxt_alloc); /* Set partition start sector */\r | |
5795 | st_qword(buf + ofs + GPTE_LstLba, nxt_alloc + sz_part - 1); /* Set partition end sector */\r | |
5796 | nxt_alloc += sz_part; /* Next allocatable sector */\r | |
5797 | }\r | |
5798 | if ((pi + 1) * SZ_GPTE % ss == 0) { /* Write the buffer if it is filled up */\r | |
5799 | for (i = 0; i < ss; bcc = crc32(bcc, buf[i++])) ; /* Calculate table check sum */\r | |
5800 | if (disk_write(drv, buf, 2 + pi * SZ_GPTE / ss, 1) != RES_OK) return FR_DISK_ERR; /* Write to primary table */\r | |
5801 | if (disk_write(drv, buf, top_bpt + pi * SZ_GPTE / ss, 1) != RES_OK) return FR_DISK_ERR; /* Write to secondary table */\r | |
5802 | }\r | |
5803 | } while (++pi < GPT_ITEMS);\r | |
5804 | \r | |
5805 | /* Create primary GPT header */\r | |
5806 | memset(buf, 0, ss);\r | |
5807 | memcpy(buf + GPTH_Sign, "EFI PART" "\0\0\1\0" "\x5C\0\0", 16); /* Signature, version (1.0) and size (92) */\r | |
5808 | st_dword(buf + GPTH_PtBcc, ~bcc); /* Table check sum */\r | |
5809 | st_qword(buf + GPTH_CurLba, 1); /* LBA of this header */\r | |
5810 | st_qword(buf + GPTH_BakLba, sz_drv - 1); /* LBA of secondary header */\r | |
5811 | st_qword(buf + GPTH_FstLba, 2 + sz_ptbl); /* LBA of first allocatable sector */\r | |
5812 | st_qword(buf + GPTH_LstLba, top_bpt - 1); /* LBA of last allocatable sector */\r | |
5813 | st_dword(buf + GPTH_PteSize, SZ_GPTE); /* Size of a table entry */\r | |
5814 | st_dword(buf + GPTH_PtNum, GPT_ITEMS); /* Number of table entries */\r | |
5815 | st_dword(buf + GPTH_PtOfs, 2); /* LBA of this table */\r | |
5816 | rnd = make_rand(rnd, buf + GPTH_DskGuid, 16); /* Disk GUID */\r | |
5817 | for (i = 0, bcc= 0xFFFFFFFF; i < 92; bcc = crc32(bcc, buf[i++])) ; /* Calculate header check sum */\r | |
5818 | st_dword(buf + GPTH_Bcc, ~bcc); /* Header check sum */\r | |
5819 | if (disk_write(drv, buf, 1, 1) != RES_OK) return FR_DISK_ERR;\r | |
5820 | \r | |
5821 | /* Create secondary GPT header */\r | |
5822 | st_qword(buf + GPTH_CurLba, sz_drv - 1); /* LBA of this header */\r | |
5823 | st_qword(buf + GPTH_BakLba, 1); /* LBA of primary header */\r | |
5824 | st_qword(buf + GPTH_PtOfs, top_bpt); /* LBA of this table */\r | |
5825 | st_dword(buf + GPTH_Bcc, 0);\r | |
5826 | for (i = 0, bcc= 0xFFFFFFFF; i < 92; bcc = crc32(bcc, buf[i++])) ; /* Calculate header check sum */\r | |
5827 | st_dword(buf + GPTH_Bcc, ~bcc); /* Header check sum */\r | |
5828 | if (disk_write(drv, buf, sz_drv - 1, 1) != RES_OK) return FR_DISK_ERR;\r | |
5829 | \r | |
5830 | /* Create protective MBR */\r | |
5831 | memset(buf, 0, ss);\r | |
5832 | memcpy(buf + MBR_Table, gpt_mbr, 16); /* Create a GPT partition */\r | |
5833 | st_word(buf + BS_55AA, 0xAA55);\r | |
5834 | if (disk_write(drv, buf, 0, 1) != RES_OK) return FR_DISK_ERR;\r | |
5835 | \r | |
5836 | } else\r | |
5837 | #endif\r | |
5838 | { /* Create partitions in MBR format */\r | |
5839 | sz_drv32 = (DWORD)sz_drv;\r | |
5840 | n_sc = N_SEC_TRACK; /* Determine drive CHS without any consideration of the drive geometry */\r | |
5841 | for (n_hd = 8; n_hd != 0 && sz_drv32 / n_hd / n_sc > 1024; n_hd *= 2) ;\r | |
5842 | if (n_hd == 0) n_hd = 255; /* Number of heads needs to be <256 */\r | |
5843 | \r | |
5844 | memset(buf, 0, FF_MAX_SS); /* Clear MBR */\r | |
5845 | pte = buf + MBR_Table; /* Partition table in the MBR */\r | |
5846 | for (i = 0, nxt_alloc32 = n_sc; i < 4 && nxt_alloc32 != 0 && nxt_alloc32 < sz_drv32; i++, nxt_alloc32 += sz_part32) {\r | |
5847 | sz_part32 = (DWORD)plst[i]; /* Get partition size */\r | |
5848 | if (sz_part32 <= 100) sz_part32 = (sz_part32 == 100) ? sz_drv32 : sz_drv32 / 100 * sz_part32; /* Size in percentage? */\r | |
5849 | if (nxt_alloc32 + sz_part32 > sz_drv32 || nxt_alloc32 + sz_part32 < nxt_alloc32) sz_part32 = sz_drv32 - nxt_alloc32; /* Clip at drive size */\r | |
5850 | if (sz_part32 == 0) break; /* End of table or no sector to allocate? */\r | |
5851 | \r | |
5852 | st_dword(pte + PTE_StLba, nxt_alloc32); /* Start LBA */\r | |
5853 | st_dword(pte + PTE_SizLba, sz_part32); /* Number of sectors */\r | |
5854 | pte[PTE_System] = sys; /* System type */\r | |
5855 | \r | |
5856 | cy = (UINT)(nxt_alloc32 / n_sc / n_hd); /* Start cylinder */\r | |
5857 | hd = (BYTE)(nxt_alloc32 / n_sc % n_hd); /* Start head */\r | |
5858 | sc = (BYTE)(nxt_alloc32 % n_sc + 1); /* Start sector */\r | |
5859 | pte[PTE_StHead] = hd;\r | |
5860 | pte[PTE_StSec] = (BYTE)((cy >> 2 & 0xC0) | sc);\r | |
5861 | pte[PTE_StCyl] = (BYTE)cy;\r | |
5862 | \r | |
5863 | cy = (UINT)((nxt_alloc32 + sz_part32 - 1) / n_sc / n_hd); /* End cylinder */\r | |
5864 | hd = (BYTE)((nxt_alloc32 + sz_part32 - 1) / n_sc % n_hd); /* End head */\r | |
5865 | sc = (BYTE)((nxt_alloc32 + sz_part32 - 1) % n_sc + 1); /* End sector */\r | |
5866 | pte[PTE_EdHead] = hd;\r | |
5867 | pte[PTE_EdSec] = (BYTE)((cy >> 2 & 0xC0) | sc);\r | |
5868 | pte[PTE_EdCyl] = (BYTE)cy;\r | |
5869 | \r | |
5870 | pte += SZ_PTE; /* Next entry */\r | |
5871 | }\r | |
5872 | \r | |
5873 | st_word(buf + BS_55AA, 0xAA55); /* MBR signature */\r | |
5874 | if (disk_write(drv, buf, 0, 1) != RES_OK) return FR_DISK_ERR; /* Write it to the MBR */\r | |
5875 | }\r | |
5876 | \r | |
5877 | return FR_OK;\r | |
5878 | }\r | |
5879 | \r | |
5880 | \r | |
5881 | \r | |
53668523 | 5882 | FRESULT f_mkfs (\r |
5630b930 L |
5883 | const TCHAR* path, /* Logical drive number */\r |
5884 | const MKFS_PARM* opt, /* Format options */\r | |
5885 | void* work, /* Pointer to working buffer (null: use len bytes of heap memory) */\r | |
5886 | UINT len /* Size of working buffer [byte] */\r | |
53668523 L |
5887 | )\r |
5888 | {\r | |
289f6a14 | 5889 | static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */\r |
70702af1 | 5890 | static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */\r |
5630b930 L |
5891 | static const MKFS_PARM defopt = {FM_ANY, 0, 0, 0, 0}; /* Default parameter */\r |
5892 | BYTE fsopt, fsty, sys, pdrv, ipart;\r | |
5893 | BYTE *buf;\r | |
5894 | BYTE *pte;\r | |
289f6a14 | 5895 | WORD ss; /* Sector size */\r |
5630b930 L |
5896 | DWORD sz_buf, sz_blk, n_clst, pau, nsect, n, vsn;\r |
5897 | LBA_t sz_vol, b_vol, b_fat, b_data; /* Size of volume, Base LBA of volume, fat, data */\r | |
5898 | LBA_t sect, lba[2];\r | |
5899 | DWORD sz_rsv, sz_fat, sz_dir, sz_au; /* Size of reserved, fat, dir, data, cluster */\r | |
5900 | UINT n_fat, n_root, i; /* Index, Number of FATs and Number of roor dir entries */\r | |
70702af1 | 5901 | int vol;\r |
5630b930 L |
5902 | DSTATUS ds;\r |
5903 | FRESULT res;\r | |
53668523 L |
5904 | \r |
5905 | \r | |
5906 | /* Check mounted drive and clear work area */\r | |
70702af1 | 5907 | vol = get_ldnumber(&path); /* Get target logical drive */\r |
53668523 | 5908 | if (vol < 0) return FR_INVALID_DRIVE;\r |
5630b930 L |
5909 | if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear the fs object if mounted */\r |
5910 | pdrv = LD2PD(vol); /* Hosting physical drive */\r | |
5911 | ipart = LD2PT(vol); /* Hosting partition (0:create as new, 1..:existing partition) */\r | |
5912 | \r | |
5913 | /* Initialize the hosting physical drive */\r | |
5914 | ds = disk_initialize(pdrv);\r | |
5915 | if (ds & STA_NOINIT) return FR_NOT_READY;\r | |
5916 | if (ds & STA_PROTECT) return FR_WRITE_PROTECTED;\r | |
5917 | \r | |
5918 | /* Get physical drive parameters (sz_drv, sz_blk and ss) */\r | |
5919 | if (!opt) opt = &defopt; /* Use default parameter if it is not given */\r | |
5920 | sz_blk = opt->align;\r | |
5921 | if (sz_blk == 0) disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk); /* Block size from the paramter or lower layer */\r | |
5922 | if (sz_blk == 0 || sz_blk > 0x8000 || (sz_blk & (sz_blk - 1))) sz_blk = 1; /* Use default if the block size is invalid */\r | |
5923 | #if FF_MAX_SS != FF_MIN_SS\r | |
70702af1 | 5924 | if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR;\r |
289f6a14 | 5925 | if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR;\r |
70702af1 | 5926 | #else\r |
289f6a14 | 5927 | ss = FF_MAX_SS;\r |
53668523 | 5928 | #endif\r |
5630b930 L |
5929 | \r |
5930 | /* Options for FAT sub-type and FAT parameters */\r | |
5931 | fsopt = opt->fmt & (FM_ANY | FM_SFD);\r | |
5932 | n_fat = (opt->n_fat >= 1 && opt->n_fat <= 2) ? opt->n_fat : 1;\r | |
5933 | n_root = (opt->n_root >= 1 && opt->n_root <= 32768 && (opt->n_root % (ss / SZDIRE)) == 0) ? opt->n_root : 512;\r | |
5934 | sz_au = (opt->au_size <= 0x1000000 && (opt->au_size & (opt->au_size - 1)) == 0) ? opt->au_size : 0;\r | |
5935 | sz_au /= ss; /* Byte --> Sector */\r | |
70702af1 L |
5936 | \r |
5937 | /* Get working buffer */\r | |
5630b930 L |
5938 | sz_buf = len / ss; /* Size of working buffer [sector] */\r |
5939 | if (sz_buf == 0) return FR_NOT_ENOUGH_CORE;\r | |
5940 | buf = (BYTE*)work; /* Working buffer */\r | |
289f6a14 | 5941 | #if FF_USE_LFN == 3\r |
5630b930 | 5942 | if (!buf) buf = ff_memalloc(sz_buf * ss); /* Use heap memory for working buffer */\r |
289f6a14 | 5943 | #endif\r |
5630b930 | 5944 | if (!buf) return FR_NOT_ENOUGH_CORE;\r |
70702af1 L |
5945 | \r |
5946 | /* Determine where the volume to be located (b_vol, sz_vol) */\r | |
5630b930 L |
5947 | b_vol = sz_vol = 0;\r |
5948 | if (FF_MULTI_PARTITION && ipart != 0) { /* Is the volume associated with any specific partition? */\r | |
5949 | /* Get partition location from the existing partition table */\r | |
289f6a14 L |
5950 | if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load MBR */\r |
5951 | if (ld_word(buf + BS_55AA) != 0xAA55) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if MBR is valid */\r | |
5630b930 L |
5952 | #if FF_LBA64\r |
5953 | if (buf[MBR_Table + PTE_System] == 0xEE) { /* GPT protective MBR? */\r | |
5954 | DWORD n_ent, ofs;\r | |
5955 | QWORD pt_lba;\r | |
5956 | \r | |
5957 | /* Get the partition location from GPT */\r | |
5958 | if (disk_read(pdrv, buf, 1, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load GPT header sector (next to MBR) */\r | |
5959 | if (!test_gpt_header(buf)) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if GPT header is valid */\r | |
5960 | n_ent = ld_dword(buf + GPTH_PtNum); /* Number of entries */\r | |
5961 | pt_lba = ld_qword(buf + GPTH_PtOfs); /* Table start sector */\r | |
5962 | ofs = i = 0;\r | |
5963 | while (n_ent) { /* Find MS Basic partition with order of ipart */\r | |
5964 | if (ofs == 0 && disk_read(pdrv, buf, pt_lba++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Get PT sector */\r | |
5965 | if (!memcmp(buf + ofs + GPTE_PtGuid, GUID_MS_Basic, 16) && ++i == ipart) { /* MS basic data partition? */\r | |
5966 | b_vol = ld_qword(buf + ofs + GPTE_FstLba);\r | |
5967 | sz_vol = ld_qword(buf + ofs + GPTE_LstLba) - b_vol + 1;\r | |
5968 | break;\r | |
5969 | }\r | |
5970 | n_ent--; ofs = (ofs + SZ_GPTE) % ss; /* Next entry */\r | |
5971 | }\r | |
5972 | if (n_ent == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* Partition not found */\r | |
5973 | fsopt |= 0x80; /* Partitioning is in GPT */\r | |
5974 | } else\r | |
5975 | #endif\r | |
5976 | { /* Get the partition location from MBR partition table */\r | |
5977 | pte = buf + (MBR_Table + (ipart - 1) * SZ_PTE);\r | |
5978 | if (ipart > 4 || pte[PTE_System] == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* No partition? */\r | |
5979 | b_vol = ld_dword(pte + PTE_StLba); /* Get volume start sector */\r | |
5980 | sz_vol = ld_dword(pte + PTE_SizLba); /* Get volume size */\r | |
5981 | }\r | |
5982 | } else { /* The volume is associated with a physical drive */\r | |
289f6a14 | 5983 | if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
5630b930 L |
5984 | if (!(fsopt & FM_SFD)) { /* To be partitioned? */\r |
5985 | /* Create a single-partition on the drive in this function */\r | |
5986 | #if FF_LBA64\r | |
5987 | if (sz_vol >= FF_MIN_GPT) { /* Which partition type to create, MBR or GPT? */\r | |
5988 | fsopt |= 0x80; /* Partitioning is in GPT */\r | |
5989 | b_vol = GPT_ALIGN / ss; sz_vol -= b_vol + GPT_ITEMS * SZ_GPTE / ss + 1; /* Estimated partition offset and size */\r | |
5990 | } else\r | |
5991 | #endif\r | |
5992 | { /* Partitioning is in MBR */\r | |
5993 | if (sz_vol > N_SEC_TRACK) {\r | |
5994 | b_vol = N_SEC_TRACK; sz_vol -= b_vol; /* Estimated partition offset and size */\r | |
5995 | }\r | |
5996 | }\r | |
5997 | }\r | |
53668523 | 5998 | }\r |
289f6a14 | 5999 | if (sz_vol < 128) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if volume size is >=128s */\r |
53668523 | 6000 | \r |
5630b930 L |
6001 | /* Now start to create an FAT volume at b_vol and sz_vol */\r |
6002 | \r | |
6003 | do { /* Pre-determine the FAT type */\r | |
6004 | if (FF_FS_EXFAT && (fsopt & FM_EXFAT)) { /* exFAT possible? */\r | |
6005 | if ((fsopt & FM_ANY) == FM_EXFAT || sz_vol >= 0x4000000 || sz_au > 128) { /* exFAT only, vol >= 64MS or sz_au > 128S ? */\r | |
6006 | fsty = FS_EXFAT; break;\r | |
70702af1 L |
6007 | }\r |
6008 | }\r | |
5630b930 L |
6009 | #if FF_LBA64\r |
6010 | if (sz_vol >= 0x100000000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too large volume for FAT/FAT32 */\r | |
6011 | #endif\r | |
6012 | if (sz_au > 128) sz_au = 128; /* Invalid AU for FAT/FAT32? */\r | |
6013 | if (fsopt & FM_FAT32) { /* FAT32 possible? */\r | |
6014 | if (!(fsopt & FM_FAT)) { /* no-FAT? */\r | |
6015 | fsty = FS_FAT32; break;\r | |
70702af1 L |
6016 | }\r |
6017 | }\r | |
5630b930 L |
6018 | if (!(fsopt & FM_FAT)) LEAVE_MKFS(FR_INVALID_PARAMETER); /* no-FAT? */\r |
6019 | fsty = FS_FAT16;\r | |
70702af1 L |
6020 | } while (0);\r |
6021 | \r | |
5630b930 L |
6022 | vsn = (DWORD)sz_vol + GET_FATTIME(); /* VSN generated from current time and partitiion size */\r |
6023 | \r | |
289f6a14 | 6024 | #if FF_FS_EXFAT\r |
5630b930 L |
6025 | if (fsty == FS_EXFAT) { /* Create an exFAT volume */\r |
6026 | DWORD szb_bit, szb_case, sum, nbit, clu, clen[3];\r | |
70702af1 L |
6027 | WCHAR ch, si;\r |
6028 | UINT j, st;\r | |
70702af1 | 6029 | \r |
5630b930 | 6030 | if (sz_vol < 0x1000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume for exFAT? */\r |
289f6a14 | 6031 | #if FF_USE_TRIM\r |
5630b930 L |
6032 | lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1; /* Inform storage device that the volume area may be erased */\r |
6033 | disk_ioctl(pdrv, CTRL_TRIM, lba);\r | |
70702af1 L |
6034 | #endif\r |
6035 | /* Determine FAT location, data location and number of clusters */\r | |
5630b930 L |
6036 | if (sz_au == 0) { /* AU auto-selection */\r |
6037 | sz_au = 8;\r | |
6038 | if (sz_vol >= 0x80000) sz_au = 64; /* >= 512Ks */\r | |
6039 | if (sz_vol >= 0x4000000) sz_au = 256; /* >= 64Ms */\r | |
70702af1 L |
6040 | }\r |
6041 | b_fat = b_vol + 32; /* FAT start at offset 32 */\r | |
5630b930 L |
6042 | sz_fat = (DWORD)((sz_vol / sz_au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */\r |
6043 | b_data = (b_fat + sz_fat + sz_blk - 1) & ~((LBA_t)sz_blk - 1); /* Align data area to the erase block boundary */\r | |
6044 | if (b_data - b_vol >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */\r | |
6045 | n_clst = (DWORD)((sz_vol - (b_data - b_vol)) / sz_au); /* Number of clusters */\r | |
289f6a14 L |
6046 | if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */\r |
6047 | if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */\r | |
70702af1 | 6048 | \r |
5630b930 L |
6049 | szb_bit = (n_clst + 7) / 8; /* Size of allocation bitmap */\r |
6050 | clen[0] = (szb_bit + sz_au * ss - 1) / (sz_au * ss); /* Number of allocation bitmap clusters */\r | |
70702af1 L |
6051 | \r |
6052 | /* Create a compressed up-case table */\r | |
5630b930 L |
6053 | sect = b_data + sz_au * clen[0]; /* Table start sector */\r |
6054 | sum = 0; /* Table checksum to be stored in the 82 entry */\r | |
289f6a14 | 6055 | st = 0; si = 0; i = 0; j = 0; szb_case = 0;\r |
70702af1 L |
6056 | do {\r |
6057 | switch (st) {\r | |
6058 | case 0:\r | |
289f6a14 | 6059 | ch = (WCHAR)ff_wtoupper(si); /* Get an up-case char */\r |
70702af1 L |
6060 | if (ch != si) {\r |
6061 | si++; break; /* Store the up-case char if exist */\r | |
6062 | }\r | |
6063 | for (j = 1; (WCHAR)(si + j) && (WCHAR)(si + j) == ff_wtoupper((WCHAR)(si + j)); j++) ; /* Get run length of no-case block */\r | |
6064 | if (j >= 128) {\r | |
5630b930 | 6065 | ch = 0xFFFF; st = 2; break; /* Compress the no-case block if run is >= 128 chars */\r |
70702af1 L |
6066 | }\r |
6067 | st = 1; /* Do not compress short run */\r | |
5630b930 | 6068 | /* FALLTHROUGH */\r |
70702af1 L |
6069 | case 1:\r |
6070 | ch = si++; /* Fill the short run */\r | |
6071 | if (--j == 0) st = 0;\r | |
6072 | break;\r | |
289f6a14 | 6073 | \r |
70702af1 | 6074 | default:\r |
289f6a14 | 6075 | ch = (WCHAR)j; si += (WCHAR)j; /* Number of chars to skip */\r |
70702af1 L |
6076 | st = 0;\r |
6077 | }\r | |
5630b930 | 6078 | sum = xsum32(buf[i + 0] = (BYTE)ch, sum); /* Put it into the write buffer */\r |
70702af1 L |
6079 | sum = xsum32(buf[i + 1] = (BYTE)(ch >> 8), sum);\r |
6080 | i += 2; szb_case += 2;\r | |
5630b930 | 6081 | if (si == 0 || i == sz_buf * ss) { /* Write buffered data when buffer full or end of process */\r |
70702af1 | 6082 | n = (i + ss - 1) / ss;\r |
289f6a14 | 6083 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6084 | sect += n; i = 0;\r |
6085 | }\r | |
6086 | } while (si);\r | |
5630b930 L |
6087 | clen[1] = (szb_case + sz_au * ss - 1) / (sz_au * ss); /* Number of up-case table clusters */\r |
6088 | clen[2] = 1; /* Number of root dir clusters */\r | |
53668523 | 6089 | \r |
70702af1 | 6090 | /* Initialize the allocation bitmap */\r |
5630b930 L |
6091 | sect = b_data; nsect = (szb_bit + ss - 1) / ss; /* Start of bitmap and number of bitmap sectors */\r |
6092 | nbit = clen[0] + clen[1] + clen[2]; /* Number of clusters in-use by system (bitmap, up-case and root-dir) */\r | |
70702af1 | 6093 | do {\r |
5630b930 L |
6094 | memset(buf, 0, sz_buf * ss); /* Initialize bitmap buffer */\r |
6095 | for (i = 0; nbit != 0 && i / 8 < sz_buf * ss; buf[i / 8] |= 1 << (i % 8), i++, nbit--) ; /* Mark used clusters */\r | |
70702af1 | 6096 | n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */\r |
289f6a14 | 6097 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6098 | sect += n; nsect -= n;\r |
6099 | } while (nsect);\r | |
6100 | \r | |
6101 | /* Initialize the FAT */\r | |
6102 | sect = b_fat; nsect = sz_fat; /* Start of FAT and number of FAT sectors */\r | |
5630b930 | 6103 | j = nbit = clu = 0;\r |
70702af1 | 6104 | do {\r |
5630b930 L |
6105 | memset(buf, 0, sz_buf * ss); i = 0; /* Clear work area and reset write offset */\r |
6106 | if (clu == 0) { /* Initialize FAT [0] and FAT[1] */\r | |
6107 | st_dword(buf + i, 0xFFFFFFF8); i += 4; clu++;\r | |
6108 | st_dword(buf + i, 0xFFFFFFFF); i += 4; clu++;\r | |
70702af1 L |
6109 | }\r |
6110 | do { /* Create chains of bitmap, up-case and root dir */\r | |
5630b930 L |
6111 | while (nbit != 0 && i < sz_buf * ss) { /* Create a chain */\r |
6112 | st_dword(buf + i, (nbit > 1) ? clu + 1 : 0xFFFFFFFF);\r | |
6113 | i += 4; clu++; nbit--;\r | |
70702af1 | 6114 | }\r |
5630b930 L |
6115 | if (nbit == 0 && j < 3) nbit = clen[j++]; /* Get next chain length */\r |
6116 | } while (nbit != 0 && i < sz_buf * ss);\r | |
70702af1 | 6117 | n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */\r |
289f6a14 | 6118 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6119 | sect += n; nsect -= n;\r |
6120 | } while (nsect);\r | |
6121 | \r | |
6122 | /* Initialize the root directory */\r | |
5630b930 L |
6123 | memset(buf, 0, sz_buf * ss);\r |
6124 | buf[SZDIRE * 0 + 0] = ET_VLABEL; /* Volume label entry (no label) */\r | |
6125 | buf[SZDIRE * 1 + 0] = ET_BITMAP; /* Bitmap entry */\r | |
6126 | st_dword(buf + SZDIRE * 1 + 20, 2); /* cluster */\r | |
6127 | st_dword(buf + SZDIRE * 1 + 24, szb_bit); /* size */\r | |
6128 | buf[SZDIRE * 2 + 0] = ET_UPCASE; /* Up-case table entry */\r | |
6129 | st_dword(buf + SZDIRE * 2 + 4, sum); /* sum */\r | |
6130 | st_dword(buf + SZDIRE * 2 + 20, 2 + clen[0]); /* cluster */\r | |
6131 | st_dword(buf + SZDIRE * 2 + 24, szb_case); /* size */\r | |
6132 | sect = b_data + sz_au * (clen[0] + clen[1]); nsect = sz_au; /* Start of the root directory and number of sectors */\r | |
70702af1 L |
6133 | do { /* Fill root directory sectors */\r |
6134 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
289f6a14 | 6135 | if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
5630b930 | 6136 | memset(buf, 0, ss); /* Rest of entries are filled with zero */\r |
70702af1 L |
6137 | sect += n; nsect -= n;\r |
6138 | } while (nsect);\r | |
6139 | \r | |
6140 | /* Create two set of the exFAT VBR blocks */\r | |
6141 | sect = b_vol;\r | |
6142 | for (n = 0; n < 2; n++) {\r | |
6143 | /* Main record (+0) */\r | |
5630b930 L |
6144 | memset(buf, 0, ss);\r |
6145 | memcpy(buf + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11); /* Boot jump code (x86), OEM name */\r | |
6146 | st_qword(buf + BPB_VolOfsEx, b_vol); /* Volume offset in the physical drive [sector] */\r | |
6147 | st_qword(buf + BPB_TotSecEx, sz_vol); /* Volume size [sector] */\r | |
6148 | st_dword(buf + BPB_FatOfsEx, (DWORD)(b_fat - b_vol)); /* FAT offset [sector] */\r | |
70702af1 | 6149 | st_dword(buf + BPB_FatSzEx, sz_fat); /* FAT size [sector] */\r |
5630b930 | 6150 | st_dword(buf + BPB_DataOfsEx, (DWORD)(b_data - b_vol)); /* Data offset [sector] */\r |
70702af1 | 6151 | st_dword(buf + BPB_NumClusEx, n_clst); /* Number of clusters */\r |
5630b930 L |
6152 | st_dword(buf + BPB_RootClusEx, 2 + clen[0] + clen[1]); /* Root dir cluster # */\r |
6153 | st_dword(buf + BPB_VolIDEx, vsn); /* VSN */\r | |
289f6a14 | 6154 | st_word(buf + BPB_FSVerEx, 0x100); /* Filesystem version (1.00) */\r |
70702af1 | 6155 | for (buf[BPB_BytsPerSecEx] = 0, i = ss; i >>= 1; buf[BPB_BytsPerSecEx]++) ; /* Log2 of sector size [byte] */\r |
5630b930 | 6156 | for (buf[BPB_SecPerClusEx] = 0, i = sz_au; i >>= 1; buf[BPB_SecPerClusEx]++) ; /* Log2 of cluster size [sector] */\r |
70702af1 L |
6157 | buf[BPB_NumFATsEx] = 1; /* Number of FATs */\r |
6158 | buf[BPB_DrvNumEx] = 0x80; /* Drive number (for int13) */\r | |
6159 | st_word(buf + BS_BootCodeEx, 0xFEEB); /* Boot code (x86) */\r | |
6160 | st_word(buf + BS_55AA, 0xAA55); /* Signature (placed here regardless of sector size) */\r | |
6161 | for (i = sum = 0; i < ss; i++) { /* VBR checksum */\r | |
6162 | if (i != BPB_VolFlagEx && i != BPB_VolFlagEx + 1 && i != BPB_PercInUseEx) sum = xsum32(buf[i], sum);\r | |
6163 | }\r | |
289f6a14 | 6164 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 | 6165 | /* Extended bootstrap record (+1..+8) */\r |
5630b930 | 6166 | memset(buf, 0, ss);\r |
70702af1 L |
6167 | st_word(buf + ss - 2, 0xAA55); /* Signature (placed at end of sector) */\r |
6168 | for (j = 1; j < 9; j++) {\r | |
6169 | for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */\r | |
289f6a14 | 6170 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6171 | }\r |
6172 | /* OEM/Reserved record (+9..+10) */\r | |
5630b930 | 6173 | memset(buf, 0, ss);\r |
70702af1 L |
6174 | for ( ; j < 11; j++) {\r |
6175 | for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */\r | |
289f6a14 | 6176 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6177 | }\r |
6178 | /* Sum record (+11) */\r | |
6179 | for (i = 0; i < ss; i += 4) st_dword(buf + i, sum); /* Fill with checksum value */\r | |
289f6a14 | 6180 | if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 | 6181 | }\r |
53668523 | 6182 | \r |
70702af1 | 6183 | } else\r |
289f6a14 L |
6184 | #endif /* FF_FS_EXFAT */\r |
6185 | { /* Create an FAT/FAT32 volume */\r | |
70702af1 | 6186 | do {\r |
5630b930 | 6187 | pau = sz_au;\r |
70702af1 | 6188 | /* Pre-determine number of clusters and FAT sub-type */\r |
5630b930 L |
6189 | if (fsty == FS_FAT32) { /* FAT32 volume */\r |
6190 | if (pau == 0) { /* AU auto-selection */\r | |
6191 | n = (DWORD)sz_vol / 0x20000; /* Volume size in unit of 128KS */\r | |
70702af1 L |
6192 | for (i = 0, pau = 1; cst32[i] && cst32[i] <= n; i++, pau <<= 1) ; /* Get from table */\r |
6193 | }\r | |
5630b930 | 6194 | n_clst = (DWORD)sz_vol / pau; /* Number of clusters */\r |
70702af1 L |
6195 | sz_fat = (n_clst * 4 + 8 + ss - 1) / ss; /* FAT size [sector] */\r |
6196 | sz_rsv = 32; /* Number of reserved sectors */\r | |
6197 | sz_dir = 0; /* No static directory */\r | |
289f6a14 L |
6198 | if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) LEAVE_MKFS(FR_MKFS_ABORTED);\r |
6199 | } else { /* FAT volume */\r | |
6200 | if (pau == 0) { /* au auto-selection */\r | |
5630b930 | 6201 | n = (DWORD)sz_vol / 0x1000; /* Volume size in unit of 4KS */\r |
70702af1 L |
6202 | for (i = 0, pau = 1; cst[i] && cst[i] <= n; i++, pau <<= 1) ; /* Get from table */\r |
6203 | }\r | |
5630b930 | 6204 | n_clst = (DWORD)sz_vol / pau;\r |
70702af1 L |
6205 | if (n_clst > MAX_FAT12) {\r |
6206 | n = n_clst * 2 + 4; /* FAT size [byte] */\r | |
6207 | } else {\r | |
5630b930 | 6208 | fsty = FS_FAT12;\r |
70702af1 L |
6209 | n = (n_clst * 3 + 1) / 2 + 3; /* FAT size [byte] */\r |
6210 | }\r | |
6211 | sz_fat = (n + ss - 1) / ss; /* FAT size [sector] */\r | |
6212 | sz_rsv = 1; /* Number of reserved sectors */\r | |
5630b930 | 6213 | sz_dir = (DWORD)n_root * SZDIRE / ss; /* Root dir size [sector] */\r |
70702af1 L |
6214 | }\r |
6215 | b_fat = b_vol + sz_rsv; /* FAT base */\r | |
5630b930 | 6216 | b_data = b_fat + sz_fat * n_fat + sz_dir; /* Data base */\r |
70702af1 | 6217 | \r |
5630b930 L |
6218 | /* Align data area to erase block boundary (for flash memory media) */\r |
6219 | n = (DWORD)(((b_data + sz_blk - 1) & ~(sz_blk - 1)) - b_data); /* Sectors to next nearest from current data base */\r | |
6220 | if (fsty == FS_FAT32) { /* FAT32: Move FAT */\r | |
70702af1 | 6221 | sz_rsv += n; b_fat += n;\r |
5630b930 L |
6222 | } else { /* FAT: Expand FAT */\r |
6223 | if (n % n_fat) { /* Adjust fractional error if needed */\r | |
6224 | n--; sz_rsv++; b_fat++;\r | |
6225 | }\r | |
6226 | sz_fat += n / n_fat;\r | |
70702af1 L |
6227 | }\r |
6228 | \r | |
6229 | /* Determine number of clusters and final check of validity of the FAT sub-type */\r | |
5630b930 L |
6230 | if (sz_vol < b_data + pau * 16 - b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */\r |
6231 | n_clst = ((DWORD)sz_vol - sz_rsv - sz_fat * n_fat - sz_dir) / pau;\r | |
6232 | if (fsty == FS_FAT32) {\r | |
6233 | if (n_clst <= MAX_FAT16) { /* Too few clusters for FAT32? */\r | |
6234 | if (sz_au == 0 && (sz_au = pau / 2) != 0) continue; /* Adjust cluster size and retry */\r | |
289f6a14 | 6235 | LEAVE_MKFS(FR_MKFS_ABORTED);\r |
70702af1 L |
6236 | }\r |
6237 | }\r | |
5630b930 | 6238 | if (fsty == FS_FAT16) {\r |
70702af1 | 6239 | if (n_clst > MAX_FAT16) { /* Too many clusters for FAT16 */\r |
5630b930 L |
6240 | if (sz_au == 0 && (pau * 2) <= 64) {\r |
6241 | sz_au = pau * 2; continue; /* Adjust cluster size and retry */\r | |
70702af1 | 6242 | }\r |
5630b930 L |
6243 | if ((fsopt & FM_FAT32)) {\r |
6244 | fsty = FS_FAT32; continue; /* Switch type to FAT32 and retry */\r | |
70702af1 | 6245 | }\r |
5630b930 | 6246 | if (sz_au == 0 && (sz_au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */\r |
289f6a14 | 6247 | LEAVE_MKFS(FR_MKFS_ABORTED);\r |
70702af1 L |
6248 | }\r |
6249 | if (n_clst <= MAX_FAT12) { /* Too few clusters for FAT16 */\r | |
5630b930 | 6250 | if (sz_au == 0 && (sz_au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */\r |
289f6a14 | 6251 | LEAVE_MKFS(FR_MKFS_ABORTED);\r |
70702af1 L |
6252 | }\r |
6253 | }\r | |
5630b930 | 6254 | if (fsty == FS_FAT12 && n_clst > MAX_FAT12) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters for FAT12 */\r |
70702af1 L |
6255 | \r |
6256 | /* Ok, it is the valid cluster configuration */\r | |
6257 | break;\r | |
6258 | } while (1);\r | |
6259 | \r | |
289f6a14 | 6260 | #if FF_USE_TRIM\r |
5630b930 L |
6261 | lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1; /* Inform storage device that the volume area may be erased */\r |
6262 | disk_ioctl(pdrv, CTRL_TRIM, lba);\r | |
70702af1 L |
6263 | #endif\r |
6264 | /* Create FAT VBR */\r | |
5630b930 L |
6265 | memset(buf, 0, ss);\r |
6266 | memcpy(buf + BS_JmpBoot, "\xEB\xFE\x90" "MSDOS5.0", 11); /* Boot jump code (x86), OEM name */\r | |
70702af1 L |
6267 | st_word(buf + BPB_BytsPerSec, ss); /* Sector size [byte] */\r |
6268 | buf[BPB_SecPerClus] = (BYTE)pau; /* Cluster size [sector] */\r | |
6269 | st_word(buf + BPB_RsvdSecCnt, (WORD)sz_rsv); /* Size of reserved area */\r | |
5630b930 L |
6270 | buf[BPB_NumFATs] = (BYTE)n_fat; /* Number of FATs */\r |
6271 | st_word(buf + BPB_RootEntCnt, (WORD)((fsty == FS_FAT32) ? 0 : n_root)); /* Number of root directory entries */\r | |
70702af1 L |
6272 | if (sz_vol < 0x10000) {\r |
6273 | st_word(buf + BPB_TotSec16, (WORD)sz_vol); /* Volume size in 16-bit LBA */\r | |
53668523 | 6274 | } else {\r |
5630b930 | 6275 | st_dword(buf + BPB_TotSec32, (DWORD)sz_vol); /* Volume size in 32-bit LBA */\r |
70702af1 L |
6276 | }\r |
6277 | buf[BPB_Media] = 0xF8; /* Media descriptor byte */\r | |
6278 | st_word(buf + BPB_SecPerTrk, 63); /* Number of sectors per track (for int13) */\r | |
6279 | st_word(buf + BPB_NumHeads, 255); /* Number of heads (for int13) */\r | |
5630b930 L |
6280 | st_dword(buf + BPB_HiddSec, (DWORD)b_vol); /* Volume offset in the physical drive [sector] */\r |
6281 | if (fsty == FS_FAT32) {\r | |
6282 | st_dword(buf + BS_VolID32, vsn); /* VSN */\r | |
70702af1 L |
6283 | st_dword(buf + BPB_FATSz32, sz_fat); /* FAT size [sector] */\r |
6284 | st_dword(buf + BPB_RootClus32, 2); /* Root directory cluster # (2) */\r | |
6285 | st_word(buf + BPB_FSInfo32, 1); /* Offset of FSINFO sector (VBR + 1) */\r | |
6286 | st_word(buf + BPB_BkBootSec32, 6); /* Offset of backup VBR (VBR + 6) */\r | |
6287 | buf[BS_DrvNum32] = 0x80; /* Drive number (for int13) */\r | |
6288 | buf[BS_BootSig32] = 0x29; /* Extended boot signature */\r | |
5630b930 | 6289 | memcpy(buf + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */\r |
70702af1 | 6290 | } else {\r |
5630b930 | 6291 | st_dword(buf + BS_VolID, vsn); /* VSN */\r |
70702af1 L |
6292 | st_word(buf + BPB_FATSz16, (WORD)sz_fat); /* FAT size [sector] */\r |
6293 | buf[BS_DrvNum] = 0x80; /* Drive number (for int13) */\r | |
6294 | buf[BS_BootSig] = 0x29; /* Extended boot signature */\r | |
5630b930 | 6295 | memcpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */\r |
70702af1 L |
6296 | }\r |
6297 | st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */\r | |
289f6a14 | 6298 | if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */\r |
70702af1 L |
6299 | \r |
6300 | /* Create FSINFO record if needed */\r | |
5630b930 | 6301 | if (fsty == FS_FAT32) {\r |
70702af1 | 6302 | disk_write(pdrv, buf, b_vol + 6, 1); /* Write backup VBR (VBR + 6) */\r |
5630b930 | 6303 | memset(buf, 0, ss);\r |
70702af1 L |
6304 | st_dword(buf + FSI_LeadSig, 0x41615252);\r |
6305 | st_dword(buf + FSI_StrucSig, 0x61417272);\r | |
6306 | st_dword(buf + FSI_Free_Count, n_clst - 1); /* Number of free clusters */\r | |
6307 | st_dword(buf + FSI_Nxt_Free, 2); /* Last allocated cluster# */\r | |
6308 | st_word(buf + BS_55AA, 0xAA55);\r | |
6309 | disk_write(pdrv, buf, b_vol + 7, 1); /* Write backup FSINFO (VBR + 7) */\r | |
6310 | disk_write(pdrv, buf, b_vol + 1, 1); /* Write original FSINFO (VBR + 1) */\r | |
53668523 | 6311 | }\r |
53668523 | 6312 | \r |
70702af1 | 6313 | /* Initialize FAT area */\r |
5630b930 | 6314 | memset(buf, 0, sz_buf * ss);\r |
70702af1 | 6315 | sect = b_fat; /* FAT start sector */\r |
5630b930 L |
6316 | for (i = 0; i < n_fat; i++) { /* Initialize FATs each */\r |
6317 | if (fsty == FS_FAT32) {\r | |
6318 | st_dword(buf + 0, 0xFFFFFFF8); /* FAT[0] */\r | |
6319 | st_dword(buf + 4, 0xFFFFFFFF); /* FAT[1] */\r | |
6320 | st_dword(buf + 8, 0x0FFFFFFF); /* FAT[2] (root directory) */\r | |
70702af1 | 6321 | } else {\r |
5630b930 | 6322 | st_dword(buf + 0, (fsty == FS_FAT12) ? 0xFFFFF8 : 0xFFFFFFF8); /* FAT[0] and FAT[1] */\r |
70702af1 L |
6323 | }\r |
6324 | nsect = sz_fat; /* Number of FAT sectors */\r | |
6325 | do { /* Fill FAT sectors */\r | |
6326 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
289f6a14 | 6327 | if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
5630b930 | 6328 | memset(buf, 0, ss); /* Rest of FAT all are cleared */\r |
70702af1 L |
6329 | sect += n; nsect -= n;\r |
6330 | } while (nsect);\r | |
53668523 | 6331 | }\r |
53668523 | 6332 | \r |
70702af1 | 6333 | /* Initialize root directory (fill with zero) */\r |
5630b930 | 6334 | nsect = (fsty == FS_FAT32) ? pau : sz_dir; /* Number of root directory sectors */\r |
70702af1 L |
6335 | do {\r |
6336 | n = (nsect > sz_buf) ? sz_buf : nsect;\r | |
289f6a14 | 6337 | if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
70702af1 L |
6338 | sect += n; nsect -= n;\r |
6339 | } while (nsect);\r | |
53668523 | 6340 | }\r |
70702af1 | 6341 | \r |
5630b930 L |
6342 | /* A FAT volume has been created here */\r |
6343 | \r | |
6344 | /* Determine system ID in the MBR partition table */\r | |
6345 | if (FF_FS_EXFAT && fsty == FS_EXFAT) {\r | |
6346 | sys = 0x07; /* exFAT */\r | |
6347 | } else if (fsty == FS_FAT32) {\r | |
6348 | sys = 0x0C; /* FAT32X */\r | |
6349 | } else if (sz_vol >= 0x10000) {\r | |
6350 | sys = 0x06; /* FAT12/16 (large) */\r | |
6351 | } else if (fsty == FS_FAT16) {\r | |
6352 | sys = 0x04; /* FAT16 */\r | |
53668523 | 6353 | } else {\r |
5630b930 | 6354 | sys = 0x01; /* FAT12 */\r |
53668523 L |
6355 | }\r |
6356 | \r | |
289f6a14 | 6357 | /* Update partition information */\r |
5630b930 L |
6358 | if (FF_MULTI_PARTITION && ipart != 0) { /* Volume is in the existing partition */\r |
6359 | if (!FF_LBA64 || !(fsopt & 0x80)) { /* Is the partition in MBR? */\r | |
6360 | /* Update system ID in the partition table */\r | |
6361 | if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Read the MBR */\r | |
6362 | buf[MBR_Table + (ipart - 1) * SZ_PTE + PTE_System] = sys; /* Set system ID */\r | |
6363 | if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it back to the MBR */\r | |
6364 | }\r | |
6365 | } else { /* Volume as a new single partition */\r | |
6366 | if (!(fsopt & FM_SFD)) { /* Create partition table if not in SFD format */\r | |
6367 | lba[0] = sz_vol; lba[1] = 0;\r | |
6368 | res = create_partition(pdrv, lba, sys, buf);\r | |
6369 | if (res != FR_OK) LEAVE_MKFS(res);\r | |
70702af1 | 6370 | }\r |
53668523 | 6371 | }\r |
53668523 | 6372 | \r |
289f6a14 | 6373 | if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);\r |
53668523 | 6374 | \r |
289f6a14 | 6375 | LEAVE_MKFS(FR_OK);\r |
53668523 L |
6376 | }\r |
6377 | \r | |
6378 | \r | |
6379 | \r | |
5630b930 | 6380 | \r |
289f6a14 | 6381 | #if FF_MULTI_PARTITION\r |
53668523 | 6382 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 6383 | /* Create Partition Table on the Physical Drive */\r |
53668523 L |
6384 | /*-----------------------------------------------------------------------*/\r |
6385 | \r | |
6386 | FRESULT f_fdisk (\r | |
6387 | BYTE pdrv, /* Physical drive number */\r | |
5630b930 | 6388 | const LBA_t ptbl[], /* Pointer to the size table for each partitions */\r |
289f6a14 | 6389 | void* work /* Pointer to the working buffer (null: use heap memory) */\r |
53668523 L |
6390 | )\r |
6391 | {\r | |
5630b930 | 6392 | BYTE *buf = (BYTE*)work;\r |
53668523 | 6393 | DSTATUS stat;\r |
289f6a14 | 6394 | FRESULT res;\r |
53668523 L |
6395 | \r |
6396 | \r | |
5630b930 | 6397 | /* Initialize the physical drive */\r |
53668523 L |
6398 | stat = disk_initialize(pdrv);\r |
6399 | if (stat & STA_NOINIT) return FR_NOT_READY;\r | |
6400 | if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;\r | |
53668523 | 6401 | \r |
289f6a14 L |
6402 | #if FF_USE_LFN == 3\r |
6403 | if (!buf) buf = ff_memalloc(FF_MAX_SS); /* Use heap memory for working buffer */\r | |
6404 | #endif\r | |
6405 | if (!buf) return FR_NOT_ENOUGH_CORE;\r | |
6406 | \r | |
5630b930 | 6407 | res = create_partition(pdrv, ptbl, 0x07, buf); /* Create partitions (system ID is temporary setting and determined by f_mkfs) */\r |
53668523 | 6408 | \r |
289f6a14 | 6409 | LEAVE_MKFS(res);\r |
53668523 L |
6410 | }\r |
6411 | \r | |
289f6a14 | 6412 | #endif /* FF_MULTI_PARTITION */\r |
5630b930 | 6413 | #endif /* !FF_FS_READONLY && FF_USE_MKFS */\r |
53668523 L |
6414 | \r |
6415 | \r | |
6416 | \r | |
6417 | \r | |
289f6a14 L |
6418 | #if FF_USE_STRFUNC\r |
6419 | #if FF_USE_LFN && FF_LFN_UNICODE && (FF_STRF_ENCODE < 0 || FF_STRF_ENCODE > 3)\r | |
6420 | #error Wrong FF_STRF_ENCODE setting\r | |
6421 | #endif\r | |
53668523 | 6422 | /*-----------------------------------------------------------------------*/\r |
289f6a14 | 6423 | /* Get a String from the File */\r |
53668523 L |
6424 | /*-----------------------------------------------------------------------*/\r |
6425 | \r | |
6426 | TCHAR* f_gets (\r | |
5630b930 | 6427 | TCHAR* buff, /* Pointer to the buffer to store read string */\r |
289f6a14 | 6428 | int len, /* Size of string buffer (items) */\r |
53668523 L |
6429 | FIL* fp /* Pointer to the file object */\r |
6430 | )\r | |
6431 | {\r | |
289f6a14 L |
6432 | int nc = 0;\r |
6433 | TCHAR *p = buff;\r | |
6434 | BYTE s[4];\r | |
53668523 | 6435 | UINT rc;\r |
289f6a14 L |
6436 | DWORD dc;\r |
6437 | #if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE <= 2\r | |
6438 | WCHAR wc;\r | |
6439 | #endif\r | |
6440 | #if FF_USE_LFN && FF_LFN_UNICODE && FF_STRF_ENCODE == 3\r | |
6441 | UINT ct;\r | |
6442 | #endif\r | |
53668523 | 6443 | \r |
289f6a14 L |
6444 | #if FF_USE_LFN && FF_LFN_UNICODE /* With code conversion (Unicode API) */\r |
6445 | /* Make a room for the character and terminator */\r | |
6446 | if (FF_LFN_UNICODE == 1) len -= (FF_STRF_ENCODE == 0) ? 1 : 2;\r | |
6447 | if (FF_LFN_UNICODE == 2) len -= (FF_STRF_ENCODE == 0) ? 3 : 4;\r | |
6448 | if (FF_LFN_UNICODE == 3) len -= 1;\r | |
6449 | while (nc < len) {\r | |
5630b930 L |
6450 | #if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */\r |
6451 | f_read(fp, s, 1, &rc); /* Get a code unit */\r | |
6452 | if (rc != 1) break; /* EOF? */\r | |
289f6a14 | 6453 | wc = s[0];\r |
5630b930 L |
6454 | if (dbc_1st((BYTE)wc)) { /* DBC 1st byte? */\r |
6455 | f_read(fp, s, 1, &rc); /* Get 2nd byte */\r | |
6456 | if (rc != 1 || !dbc_2nd(s[0])) continue; /* Wrong code? */\r | |
289f6a14 | 6457 | wc = wc << 8 | s[0];\r |
53668523 | 6458 | }\r |
5630b930 L |
6459 | dc = ff_oem2uni(wc, CODEPAGE); /* Convert ANSI/OEM into Unicode */\r |
6460 | if (dc == 0) continue; /* Conversion error? */\r | |
289f6a14 | 6461 | #elif FF_STRF_ENCODE == 1 || FF_STRF_ENCODE == 2 /* Read a character in UTF-16LE/BE */\r |
5630b930 L |
6462 | f_read(fp, s, 2, &rc); /* Get a code unit */\r |
6463 | if (rc != 2) break; /* EOF? */\r | |
289f6a14 | 6464 | dc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1];\r |
5630b930 L |
6465 | if (IsSurrogateL(dc)) continue; /* Broken surrogate pair? */\r |
6466 | if (IsSurrogateH(dc)) { /* High surrogate? */\r | |
6467 | f_read(fp, s, 2, &rc); /* Get low surrogate */\r | |
6468 | if (rc != 2) break; /* EOF? */\r | |
289f6a14 | 6469 | wc = (FF_STRF_ENCODE == 1) ? ld_word(s) : s[0] << 8 | s[1];\r |
5630b930 L |
6470 | if (!IsSurrogateL(wc)) continue; /* Broken surrogate pair? */\r |
6471 | dc = ((dc & 0x3FF) + 0x40) << 10 | (wc & 0x3FF); /* Merge surrogate pair */\r | |
289f6a14 L |
6472 | }\r |
6473 | #else /* Read a character in UTF-8 */\r | |
5630b930 L |
6474 | f_read(fp, s, 1, &rc); /* Get a code unit */\r |
6475 | if (rc != 1) break; /* EOF? */\r | |
289f6a14 | 6476 | dc = s[0];\r |
5630b930 | 6477 | if (dc >= 0x80) { /* Multi-byte sequence? */\r |
289f6a14 | 6478 | ct = 0;\r |
5630b930 L |
6479 | if ((dc & 0xE0) == 0xC0) { /* 2-byte sequence? */\r |
6480 | dc &= 0x1F; ct = 1;\r | |
6481 | }\r | |
6482 | if ((dc & 0xF0) == 0xE0) { /* 3-byte sequence? */\r | |
6483 | dc &= 0x0F; ct = 2;\r | |
6484 | }\r | |
6485 | if ((dc & 0xF8) == 0xF0) { /* 4-byte sequence? */\r | |
6486 | dc &= 0x07; ct = 3;\r | |
6487 | }\r | |
289f6a14 | 6488 | if (ct == 0) continue;\r |
5630b930 | 6489 | f_read(fp, s, ct, &rc); /* Get trailing bytes */\r |
289f6a14 L |
6490 | if (rc != ct) break;\r |
6491 | rc = 0;\r | |
5630b930 | 6492 | do { /* Merge the byte sequence */\r |
289f6a14 L |
6493 | if ((s[rc] & 0xC0) != 0x80) break;\r |
6494 | dc = dc << 6 | (s[rc] & 0x3F);\r | |
6495 | } while (++rc < ct);\r | |
6496 | if (rc != ct || dc < 0x80 || IsSurrogate(dc) || dc >= 0x110000) continue; /* Wrong encoding? */\r | |
6497 | }\r | |
6498 | #endif\r | |
5630b930 L |
6499 | /* A code point is avaialble in dc to be output */\r |
6500 | \r | |
289f6a14 L |
6501 | if (FF_USE_STRFUNC == 2 && dc == '\r') continue; /* Strip \r off if needed */\r |
6502 | #if FF_LFN_UNICODE == 1 || FF_LFN_UNICODE == 3 /* Output it in UTF-16/32 encoding */\r | |
6503 | if (FF_LFN_UNICODE == 1 && dc >= 0x10000) { /* Out of BMP at UTF-16? */\r | |
6504 | *p++ = (TCHAR)(0xD800 | ((dc >> 10) - 0x40)); nc++; /* Make and output high surrogate */\r | |
6505 | dc = 0xDC00 | (dc & 0x3FF); /* Make low surrogate */\r | |
6506 | }\r | |
6507 | *p++ = (TCHAR)dc; nc++;\r | |
6508 | if (dc == '\n') break; /* End of line? */\r | |
6509 | #elif FF_LFN_UNICODE == 2 /* Output it in UTF-8 encoding */\r | |
5630b930 | 6510 | if (dc < 0x80) { /* Single byte? */\r |
289f6a14 L |
6511 | *p++ = (TCHAR)dc;\r |
6512 | nc++;\r | |
6513 | if (dc == '\n') break; /* End of line? */\r | |
5630b930 L |
6514 | } else if (dc < 0x800) { /* 2-byte sequence? */\r |
6515 | *p++ = (TCHAR)(0xC0 | (dc >> 6 & 0x1F));\r | |
6516 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6517 | nc += 2;\r | |
6518 | } else if (dc < 0x10000) { /* 3-byte sequence? */\r | |
6519 | *p++ = (TCHAR)(0xE0 | (dc >> 12 & 0x0F));\r | |
6520 | *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));\r | |
6521 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6522 | nc += 3;\r | |
6523 | } else { /* 4-byte sequence */\r | |
6524 | *p++ = (TCHAR)(0xF0 | (dc >> 18 & 0x07));\r | |
6525 | *p++ = (TCHAR)(0x80 | (dc >> 12 & 0x3F));\r | |
6526 | *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));\r | |
6527 | *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));\r | |
6528 | nc += 4;\r | |
6529 | }\r | |
6530 | #endif\r | |
6531 | }\r | |
6532 | \r | |
6533 | #else /* Byte-by-byte read without any conversion (ANSI/OEM API) */\r | |
289f6a14 L |
6534 | len -= 1; /* Make a room for the terminator */\r |
6535 | while (nc < len) {\r | |
5630b930 L |
6536 | f_read(fp, s, 1, &rc); /* Get a byte */\r |
6537 | if (rc != 1) break; /* EOF? */\r | |
289f6a14 L |
6538 | dc = s[0];\r |
6539 | if (FF_USE_STRFUNC == 2 && dc == '\r') continue;\r | |
6540 | *p++ = (TCHAR)dc; nc++;\r | |
6541 | if (dc == '\n') break;\r | |
53668523 | 6542 | }\r |
289f6a14 L |
6543 | #endif\r |
6544 | \r | |
6545 | *p = 0; /* Terminate the string */\r | |
6546 | return nc ? buff : 0; /* When no data read due to EOF or error, return with error. */\r | |
53668523 L |
6547 | }\r |
6548 | \r | |
6549 | \r | |
6550 | \r | |
70702af1 | 6551 | \r |
289f6a14 | 6552 | #if !FF_FS_READONLY\r |
53668523 | 6553 | #include <stdarg.h>\r |
5630b930 L |
6554 | #define SZ_PUTC_BUF 64\r |
6555 | #define SZ_NUM_BUF 32\r | |
6556 | \r | |
53668523 | 6557 | /*-----------------------------------------------------------------------*/\r |
5630b930 | 6558 | /* Put a Character to the File (with sub-functions) */\r |
53668523 L |
6559 | /*-----------------------------------------------------------------------*/\r |
6560 | \r | |
5630b930 L |
6561 | /* Output buffer and work area */\r |
6562 | \r | |
6563 | typedef struct {\r | |
70702af1 | 6564 | FIL *fp; /* Ptr to the writing file */\r |
289f6a14 L |
6565 | int idx, nchr; /* Write index of buf[] (-1:error), number of encoding units written */\r |
6566 | #if FF_USE_LFN && FF_LFN_UNICODE == 1\r | |
6567 | WCHAR hs;\r | |
6568 | #elif FF_USE_LFN && FF_LFN_UNICODE == 2\r | |
6569 | BYTE bs[4];\r | |
6570 | UINT wi, ct;\r | |
6571 | #endif\r | |
5630b930 | 6572 | BYTE buf[SZ_PUTC_BUF]; /* Write buffer */\r |
53668523 L |
6573 | } putbuff;\r |
6574 | \r | |
6575 | \r | |
5630b930 L |
6576 | /* Buffered file write with code conversion */\r |
6577 | \r | |
6578 | static void putc_bfd (putbuff* pb, TCHAR c)\r | |
53668523 | 6579 | {\r |
289f6a14 L |
6580 | UINT n;\r |
6581 | int i, nc;\r | |
6582 | #if FF_USE_LFN && FF_LFN_UNICODE\r | |
6583 | WCHAR hs, wc;\r | |
6584 | #if FF_LFN_UNICODE == 2\r | |
6585 | DWORD dc;\r | |
5630b930 | 6586 | const TCHAR* tp;\r |
289f6a14 L |
6587 | #endif\r |
6588 | #endif\r | |
53668523 | 6589 | \r |
289f6a14 | 6590 | if (FF_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */\r |
53668523 | 6591 | putc_bfd(pb, '\r');\r |
70702af1 | 6592 | }\r |
53668523 | 6593 | \r |
289f6a14 | 6594 | i = pb->idx; /* Write index of pb->buf[] */\r |
5630b930 | 6595 | if (i < 0) return; /* In write error? */\r |
289f6a14 | 6596 | nc = pb->nchr; /* Write unit counter */\r |
53668523 | 6597 | \r |
289f6a14 L |
6598 | #if FF_USE_LFN && FF_LFN_UNICODE\r |
6599 | #if FF_LFN_UNICODE == 1 /* UTF-16 input */\r | |
5630b930 L |
6600 | if (IsSurrogateH(c)) { /* Is this a high-surrogate? */\r |
6601 | pb->hs = c; return; /* Save it for next */\r | |
289f6a14 L |
6602 | }\r |
6603 | hs = pb->hs; pb->hs = 0;\r | |
5630b930 L |
6604 | if (hs != 0) { /* Is there a leading high-surrogate? */\r |
6605 | if (!IsSurrogateL(c)) hs = 0; /* Discard high-surrogate if not a surrogate pair */\r | |
53668523 | 6606 | } else {\r |
5630b930 | 6607 | if (IsSurrogateL(c)) return; /* Discard stray low-surrogate */\r |
289f6a14 L |
6608 | }\r |
6609 | wc = c;\r | |
6610 | #elif FF_LFN_UNICODE == 2 /* UTF-8 input */\r | |
6611 | for (;;) {\r | |
6612 | if (pb->ct == 0) { /* Out of multi-byte sequence? */\r | |
6613 | pb->bs[pb->wi = 0] = (BYTE)c; /* Save 1st byte */\r | |
5630b930 L |
6614 | if ((BYTE)c < 0x80) break; /* Single byte code? */\r |
6615 | if (((BYTE)c & 0xE0) == 0xC0) pb->ct = 1; /* 2-byte sequence? */\r | |
6616 | if (((BYTE)c & 0xF0) == 0xE0) pb->ct = 2; /* 3-byte sequence? */\r | |
6617 | if (((BYTE)c & 0xF8) == 0xF0) pb->ct = 3; /* 4-byte sequence? */\r | |
6618 | return; /* Wrong leading byte (discard it) */\r | |
289f6a14 L |
6619 | } else { /* In the multi-byte sequence */\r |
6620 | if (((BYTE)c & 0xC0) != 0x80) { /* Broken sequence? */\r | |
5630b930 | 6621 | pb->ct = 0; continue; /* Discard the sequense */\r |
289f6a14 L |
6622 | }\r |
6623 | pb->bs[++pb->wi] = (BYTE)c; /* Save the trailing byte */\r | |
5630b930 | 6624 | if (--pb->ct == 0) break; /* End of the sequence? */\r |
289f6a14 | 6625 | return;\r |
53668523 | 6626 | }\r |
53668523 | 6627 | }\r |
5630b930 L |
6628 | tp = (const TCHAR*)pb->bs;\r |
6629 | dc = tchar2uni(&tp); /* UTF-8 ==> UTF-16 */\r | |
6630 | if (dc == 0xFFFFFFFF) return; /* Wrong code? */\r | |
289f6a14 | 6631 | hs = (WCHAR)(dc >> 16);\r |
5630b930 | 6632 | wc = (WCHAR)dc;\r |
289f6a14 | 6633 | #elif FF_LFN_UNICODE == 3 /* UTF-32 input */\r |
5630b930 L |
6634 | if (IsSurrogate(c) || c >= 0x110000) return; /* Discard invalid code */\r |
6635 | if (c >= 0x10000) { /* Out of BMP? */\r | |
289f6a14 L |
6636 | hs = (WCHAR)(0xD800 | ((c >> 10) - 0x40)); /* Make high surrogate */\r |
6637 | wc = 0xDC00 | (c & 0x3FF); /* Make low surrogate */\r | |
6638 | } else {\r | |
6639 | hs = 0;\r | |
6640 | wc = (WCHAR)c;\r | |
6641 | }\r | |
6642 | #endif\r | |
5630b930 | 6643 | /* A code point in UTF-16 is available in hs and wc */\r |
289f6a14 | 6644 | \r |
5630b930 L |
6645 | #if FF_STRF_ENCODE == 1 /* Write a code point in UTF-16LE */\r |
6646 | if (hs != 0) { /* Surrogate pair? */\r | |
289f6a14 L |
6647 | st_word(&pb->buf[i], hs);\r |
6648 | i += 2;\r | |
6649 | nc++;\r | |
6650 | }\r | |
6651 | st_word(&pb->buf[i], wc);\r | |
6652 | i += 2;\r | |
5630b930 L |
6653 | #elif FF_STRF_ENCODE == 2 /* Write a code point in UTF-16BE */\r |
6654 | if (hs != 0) { /* Surrogate pair? */\r | |
289f6a14 L |
6655 | pb->buf[i++] = (BYTE)(hs >> 8);\r |
6656 | pb->buf[i++] = (BYTE)hs;\r | |
6657 | nc++;\r | |
6658 | }\r | |
6659 | pb->buf[i++] = (BYTE)(wc >> 8);\r | |
6660 | pb->buf[i++] = (BYTE)wc;\r | |
5630b930 L |
6661 | #elif FF_STRF_ENCODE == 3 /* Write a code point in UTF-8 */\r |
6662 | if (hs != 0) { /* 4-byte sequence? */\r | |
289f6a14 L |
6663 | nc += 3;\r |
6664 | hs = (hs & 0x3FF) + 0x40;\r | |
6665 | pb->buf[i++] = (BYTE)(0xF0 | hs >> 8);\r | |
6666 | pb->buf[i++] = (BYTE)(0x80 | (hs >> 2 & 0x3F));\r | |
6667 | pb->buf[i++] = (BYTE)(0x80 | (hs & 3) << 4 | (wc >> 6 & 0x0F));\r | |
6668 | pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));\r | |
6669 | } else {\r | |
5630b930 | 6670 | if (wc < 0x80) { /* Single byte? */\r |
289f6a14 L |
6671 | pb->buf[i++] = (BYTE)wc;\r |
6672 | } else {\r | |
5630b930 | 6673 | if (wc < 0x800) { /* 2-byte sequence? */\r |
289f6a14 L |
6674 | nc += 1;\r |
6675 | pb->buf[i++] = (BYTE)(0xC0 | wc >> 6);\r | |
5630b930 | 6676 | } else { /* 3-byte sequence */\r |
289f6a14 L |
6677 | nc += 2;\r |
6678 | pb->buf[i++] = (BYTE)(0xE0 | wc >> 12);\r | |
6679 | pb->buf[i++] = (BYTE)(0x80 | (wc >> 6 & 0x3F));\r | |
6680 | }\r | |
6681 | pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));\r | |
6682 | }\r | |
6683 | }\r | |
5630b930 | 6684 | #else /* Write a code point in ANSI/OEM */\r |
289f6a14 L |
6685 | if (hs != 0) return;\r |
6686 | wc = ff_uni2oem(wc, CODEPAGE); /* UTF-16 ==> ANSI/OEM */\r | |
5630b930 | 6687 | if (wc == 0) return;\r |
289f6a14 L |
6688 | if (wc >= 0x100) {\r |
6689 | pb->buf[i++] = (BYTE)(wc >> 8); nc++;\r | |
6690 | }\r | |
6691 | pb->buf[i++] = (BYTE)wc;\r | |
53668523 | 6692 | #endif\r |
289f6a14 | 6693 | \r |
5630b930 | 6694 | #else /* ANSI/OEM input (without re-encoding) */\r |
53668523 L |
6695 | pb->buf[i++] = (BYTE)c;\r |
6696 | #endif\r | |
6697 | \r | |
289f6a14 L |
6698 | if (i >= (int)(sizeof pb->buf) - 4) { /* Write buffered characters to the file */\r |
6699 | f_write(pb->fp, pb->buf, (UINT)i, &n);\r | |
6700 | i = (n == (UINT)i) ? 0 : -1;\r | |
53668523 L |
6701 | }\r |
6702 | pb->idx = i;\r | |
289f6a14 | 6703 | pb->nchr = nc + 1;\r |
53668523 L |
6704 | }\r |
6705 | \r | |
6706 | \r | |
5630b930 L |
6707 | /* Flush remaining characters in the buffer */\r |
6708 | \r | |
6709 | static int putc_flush (putbuff* pb)\r | |
70702af1 L |
6710 | {\r |
6711 | UINT nw;\r | |
6712 | \r | |
6713 | if ( pb->idx >= 0 /* Flush buffered characters to the file */\r | |
6714 | && f_write(pb->fp, pb->buf, (UINT)pb->idx, &nw) == FR_OK\r | |
6715 | && (UINT)pb->idx == nw) return pb->nchr;\r | |
5630b930 | 6716 | return -1;\r |
70702af1 L |
6717 | }\r |
6718 | \r | |
6719 | \r | |
5630b930 L |
6720 | /* Initialize write buffer */\r |
6721 | \r | |
6722 | static void putc_init (putbuff* pb, FIL* fp)\r | |
70702af1 | 6723 | {\r |
5630b930 | 6724 | memset(pb, 0, sizeof (putbuff));\r |
70702af1 | 6725 | pb->fp = fp;\r |
70702af1 L |
6726 | }\r |
6727 | \r | |
6728 | \r | |
53668523 L |
6729 | \r |
6730 | int f_putc (\r | |
6731 | TCHAR c, /* A character to be output */\r | |
6732 | FIL* fp /* Pointer to the file object */\r | |
6733 | )\r | |
6734 | {\r | |
6735 | putbuff pb;\r | |
53668523 | 6736 | \r |
53668523 | 6737 | \r |
70702af1 L |
6738 | putc_init(&pb, fp);\r |
6739 | putc_bfd(&pb, c); /* Put the character */\r | |
6740 | return putc_flush(&pb);\r | |
53668523 L |
6741 | }\r |
6742 | \r | |
6743 | \r | |
6744 | \r | |
6745 | \r | |
6746 | /*-----------------------------------------------------------------------*/\r | |
289f6a14 | 6747 | /* Put a String to the File */\r |
53668523 L |
6748 | /*-----------------------------------------------------------------------*/\r |
6749 | \r | |
6750 | int f_puts (\r | |
6751 | const TCHAR* str, /* Pointer to the string to be output */\r | |
6752 | FIL* fp /* Pointer to the file object */\r | |
6753 | )\r | |
6754 | {\r | |
6755 | putbuff pb;\r | |
53668523 | 6756 | \r |
53668523 | 6757 | \r |
70702af1 L |
6758 | putc_init(&pb, fp);\r |
6759 | while (*str) putc_bfd(&pb, *str++); /* Put the string */\r | |
6760 | return putc_flush(&pb);\r | |
53668523 L |
6761 | }\r |
6762 | \r | |
6763 | \r | |
6764 | \r | |
6765 | \r | |
6766 | /*-----------------------------------------------------------------------*/\r | |
5630b930 | 6767 | /* Put a Formatted String to the File (with sub-functions) */\r |
53668523 | 6768 | /*-----------------------------------------------------------------------*/\r |
5630b930 L |
6769 | #if FF_PRINT_FLOAT && FF_INTDEF == 2\r |
6770 | #include <math.h>\r | |
6771 | \r | |
6772 | static int ilog10 (double n) /* Calculate log10(n) in integer output */\r | |
6773 | {\r | |
6774 | int rv = 0;\r | |
6775 | \r | |
6776 | while (n >= 10) { /* Decimate digit in right shift */\r | |
6777 | if (n >= 100000) {\r | |
6778 | n /= 100000; rv += 5;\r | |
6779 | } else {\r | |
6780 | n /= 10; rv++;\r | |
6781 | }\r | |
6782 | }\r | |
6783 | while (n < 1) { /* Decimate digit in left shift */\r | |
6784 | if (n < 0.00001) {\r | |
6785 | n *= 100000; rv -= 5;\r | |
6786 | } else {\r | |
6787 | n *= 10; rv--;\r | |
6788 | }\r | |
6789 | }\r | |
6790 | return rv;\r | |
6791 | }\r | |
6792 | \r | |
6793 | \r | |
6794 | static double i10x (int n) /* Calculate 10^n in integer input */\r | |
6795 | {\r | |
6796 | double rv = 1;\r | |
6797 | \r | |
6798 | while (n > 0) { /* Left shift */\r | |
6799 | if (n >= 5) {\r | |
6800 | rv *= 100000; n -= 5;\r | |
6801 | } else {\r | |
6802 | rv *= 10; n--;\r | |
6803 | }\r | |
6804 | }\r | |
6805 | while (n < 0) { /* Right shift */\r | |
6806 | if (n <= -5) {\r | |
6807 | rv /= 100000; n += 5;\r | |
6808 | } else {\r | |
6809 | rv /= 10; n++;\r | |
6810 | }\r | |
6811 | }\r | |
6812 | return rv;\r | |
6813 | }\r | |
6814 | \r | |
6815 | \r | |
6816 | static void ftoa (\r | |
6817 | char* buf, /* Buffer to output the floating point string */\r | |
6818 | double val, /* Value to output */\r | |
6819 | int prec, /* Number of fractional digits */\r | |
6820 | TCHAR fmt /* Notation */\r | |
6821 | )\r | |
6822 | {\r | |
6823 | int d;\r | |
6824 | int e = 0, m = 0;\r | |
6825 | char sign = 0;\r | |
6826 | double w;\r | |
6827 | const char *er = 0;\r | |
6828 | const char ds = FF_PRINT_FLOAT == 2 ? ',' : '.';\r | |
6829 | \r | |
6830 | \r | |
6831 | if (isnan(val)) { /* Not a number? */\r | |
6832 | er = "NaN";\r | |
6833 | } else {\r | |
6834 | if (prec < 0) prec = 6; /* Default precision? (6 fractional digits) */\r | |
6835 | if (val < 0) { /* Negative? */\r | |
6836 | val = 0 - val; sign = '-';\r | |
6837 | } else {\r | |
6838 | sign = '+';\r | |
6839 | }\r | |
6840 | if (isinf(val)) { /* Infinite? */\r | |
6841 | er = "INF";\r | |
6842 | } else {\r | |
6843 | if (fmt == 'f') { /* Decimal notation? */\r | |
6844 | val += i10x(0 - prec) / 2; /* Round (nearest) */\r | |
6845 | m = ilog10(val);\r | |
6846 | if (m < 0) m = 0;\r | |
6847 | if (m + prec + 3 >= SZ_NUM_BUF) er = "OV"; /* Buffer overflow? */\r | |
6848 | } else { /* E notation */\r | |
6849 | if (val != 0) { /* Not a true zero? */\r | |
6850 | val += i10x(ilog10(val) - prec) / 2; /* Round (nearest) */\r | |
6851 | e = ilog10(val);\r | |
6852 | if (e > 99 || prec + 7 >= SZ_NUM_BUF) { /* Buffer overflow or E > +99? */\r | |
6853 | er = "OV";\r | |
6854 | } else {\r | |
6855 | if (e < -99) e = -99;\r | |
6856 | val /= i10x(e); /* Normalize */\r | |
6857 | }\r | |
6858 | }\r | |
6859 | }\r | |
6860 | }\r | |
6861 | if (!er) { /* Not error condition */\r | |
6862 | if (sign == '-') *buf++ = sign; /* Add a - if negative value */\r | |
6863 | do { /* Put decimal number */\r | |
6864 | if (m == -1) *buf++ = ds; /* Insert a decimal separator when get into fractional part */\r | |
6865 | w = i10x(m); /* Snip the highest digit d */\r | |
6866 | d = (int)(val / w); val -= d * w;\r | |
6867 | *buf++ = (char)('0' + d); /* Put the digit */\r | |
6868 | } while (--m >= -prec); /* Output all digits specified by prec */\r | |
6869 | if (fmt != 'f') { /* Put exponent if needed */\r | |
6870 | *buf++ = (char)fmt;\r | |
6871 | if (e < 0) {\r | |
6872 | e = 0 - e; *buf++ = '-';\r | |
6873 | } else {\r | |
6874 | *buf++ = '+';\r | |
6875 | }\r | |
6876 | *buf++ = (char)('0' + e / 10);\r | |
6877 | *buf++ = (char)('0' + e % 10);\r | |
6878 | }\r | |
6879 | }\r | |
6880 | }\r | |
6881 | if (er) { /* Error condition */\r | |
6882 | if (sign) *buf++ = sign; /* Add sign if needed */\r | |
6883 | do { /* Put error symbol */\r | |
6884 | *buf++ = *er++;\r | |
6885 | } while (*er);\r | |
6886 | }\r | |
6887 | *buf = 0; /* Term */\r | |
6888 | }\r | |
6889 | #endif /* FF_PRINT_FLOAT && FF_INTDEF == 2 */\r | |
6890 | \r | |
6891 | \r | |
53668523 L |
6892 | \r |
6893 | int f_printf (\r | |
6894 | FIL* fp, /* Pointer to the file object */\r | |
6895 | const TCHAR* fmt, /* Pointer to the format string */\r | |
6896 | ... /* Optional arguments... */\r | |
6897 | )\r | |
6898 | {\r | |
6899 | va_list arp;\r | |
70702af1 | 6900 | putbuff pb;\r |
5630b930 L |
6901 | UINT i, j, w, f, r;\r |
6902 | int prec;\r | |
6903 | #if FF_PRINT_LLI && FF_INTDEF == 2\r | |
6904 | QWORD v;\r | |
6905 | #else\r | |
53668523 | 6906 | DWORD v;\r |
5630b930 L |
6907 | #endif\r |
6908 | TCHAR *tp;\r | |
6909 | TCHAR tc, pad;\r | |
6910 | TCHAR nul = 0;\r | |
6911 | char d, str[SZ_NUM_BUF];\r | |
53668523 L |
6912 | \r |
6913 | \r | |
70702af1 | 6914 | putc_init(&pb, fp);\r |
53668523 L |
6915 | \r |
6916 | va_start(arp, fmt);\r | |
6917 | \r | |
6918 | for (;;) {\r | |
5630b930 L |
6919 | tc = *fmt++;\r |
6920 | if (tc == 0) break; /* End of format string */\r | |
6921 | if (tc != '%') { /* Not an escape character (pass-through) */\r | |
6922 | putc_bfd(&pb, tc);\r | |
53668523 L |
6923 | continue;\r |
6924 | }\r | |
5630b930 L |
6925 | f = w = 0; pad = ' '; prec = -1; /* Initialize parms */\r |
6926 | tc = *fmt++;\r | |
6927 | if (tc == '0') { /* Flag: '0' padded */\r | |
6928 | pad = '0'; tc = *fmt++;\r | |
6929 | } else if (tc == '-') { /* Flag: Left aligned */\r | |
6930 | f = 2; tc = *fmt++;\r | |
53668523 | 6931 | }\r |
5630b930 | 6932 | if (tc == '*') { /* Minimum width from an argument */\r |
289f6a14 | 6933 | w = va_arg(arp, int);\r |
5630b930 | 6934 | tc = *fmt++;\r |
289f6a14 | 6935 | } else {\r |
5630b930 L |
6936 | while (IsDigit(tc)) { /* Minimum width */\r |
6937 | w = w * 10 + tc - '0';\r | |
6938 | tc = *fmt++;\r | |
6939 | }\r | |
6940 | }\r | |
6941 | if (tc == '.') { /* Precision */\r | |
6942 | tc = *fmt++;\r | |
6943 | if (tc == '*') { /* Precision from an argument */\r | |
6944 | prec = va_arg(arp, int);\r | |
6945 | tc = *fmt++;\r | |
6946 | } else {\r | |
6947 | prec = 0;\r | |
6948 | while (IsDigit(tc)) { /* Precision */\r | |
6949 | prec = prec * 10 + tc - '0';\r | |
6950 | tc = *fmt++;\r | |
6951 | }\r | |
6952 | }\r | |
6953 | }\r | |
6954 | if (tc == 'l') { /* Size: long int */\r | |
6955 | f |= 4; tc = *fmt++;\r | |
6956 | #if FF_PRINT_LLI && FF_INTDEF == 2\r | |
6957 | if (tc == 'l') { /* Size: long long int */\r | |
6958 | f |= 8; tc = *fmt++;\r | |
6959 | }\r | |
6960 | #endif\r | |
6961 | }\r | |
6962 | if (tc == 0) break; /* End of format string */\r | |
6963 | switch (tc) { /* Atgument type is... */\r | |
6964 | case 'b': /* Unsigned binary */\r | |
53668523 | 6965 | r = 2; break;\r |
289f6a14 | 6966 | \r |
5630b930 | 6967 | case 'o': /* Unsigned octal */\r |
53668523 | 6968 | r = 8; break;\r |
289f6a14 | 6969 | \r |
5630b930 L |
6970 | case 'd': /* Signed decimal */\r |
6971 | case 'u': /* Unsigned decimal */\r | |
53668523 | 6972 | r = 10; break;\r |
289f6a14 | 6973 | \r |
5630b930 L |
6974 | case 'x': /* Unsigned hexadecimal (lower case) */\r |
6975 | case 'X': /* Unsigned hexadecimal (upper case) */\r | |
53668523 | 6976 | r = 16; break;\r |
289f6a14 | 6977 | \r |
5630b930 L |
6978 | case 'c': /* Character */\r |
6979 | putc_bfd(&pb, (TCHAR)va_arg(arp, int));\r | |
6980 | continue;\r | |
6981 | \r | |
6982 | case 's': /* String */\r | |
6983 | tp = va_arg(arp, TCHAR*); /* Get a pointer argument */\r | |
6984 | if (!tp) tp = &nul; /* Null ptr generates a null string */\r | |
6985 | for (j = 0; tp[j]; j++) ; /* j = tcslen(tp) */\r | |
6986 | if (prec >= 0 && j > (UINT)prec) j = prec; /* Limited length of string body */\r | |
6987 | for ( ; !(f & 2) && j < w; j++) putc_bfd(&pb, pad); /* Left pads */\r | |
6988 | while (*tp && prec--) putc_bfd(&pb, *tp++); /* Body */\r | |
6989 | while (j++ < w) putc_bfd(&pb, ' '); /* Right pads */\r | |
6990 | continue;\r | |
6991 | #if FF_PRINT_FLOAT && FF_INTDEF == 2\r | |
6992 | case 'f': /* Floating point (decimal) */\r | |
6993 | case 'e': /* Floating point (e) */\r | |
6994 | case 'E': /* Floating point (E) */\r | |
6995 | ftoa(str, va_arg(arp, double), prec, tc); /* Make a floating point string */\r | |
6996 | for (j = strlen(str); !(f & 2) && j < w; j++) putc_bfd(&pb, pad); /* Left pads */\r | |
6997 | for (i = 0; str[i]; putc_bfd(&pb, str[i++])) ; /* Body */\r | |
6998 | while (j++ < w) putc_bfd(&pb, ' '); /* Right pads */\r | |
6999 | continue;\r | |
7000 | #endif\r | |
53668523 | 7001 | default: /* Unknown type (pass-through) */\r |
5630b930 | 7002 | putc_bfd(&pb, tc); continue;\r |
53668523 L |
7003 | }\r |
7004 | \r | |
5630b930 L |
7005 | /* Get an integer argument and put it in numeral */\r |
7006 | #if FF_PRINT_LLI && FF_INTDEF == 2\r | |
7007 | if (f & 8) { /* long long argument? */\r | |
7008 | v = (QWORD)va_arg(arp, long long);\r | |
7009 | } else if (f & 4) { /* long argument? */\r | |
7010 | v = (tc == 'd') ? (QWORD)(long long)va_arg(arp, long) : (QWORD)va_arg(arp, unsigned long);\r | |
7011 | } else { /* int/short/char argument */\r | |
7012 | v = (tc == 'd') ? (QWORD)(long long)va_arg(arp, int) : (QWORD)va_arg(arp, unsigned int);\r | |
7013 | }\r | |
7014 | if (tc == 'd' && (v & 0x8000000000000000)) { /* Negative value? */\r | |
7015 | v = 0 - v; f |= 1;\r | |
7016 | }\r | |
7017 | #else\r | |
7018 | if (f & 4) { /* long argument? */\r | |
7019 | v = (DWORD)va_arg(arp, long);\r | |
7020 | } else { /* int/short/char argument */\r | |
7021 | v = (tc == 'd') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int);\r | |
53668523 | 7022 | }\r |
5630b930 L |
7023 | if (tc == 'd' && (v & 0x80000000)) { /* Negative value? */\r |
7024 | v = 0 - v; f |= 1;\r | |
7025 | }\r | |
7026 | #endif\r | |
53668523 | 7027 | i = 0;\r |
5630b930 L |
7028 | do { /* Make an integer number string */\r |
7029 | d = (char)(v % r); v /= r;\r | |
7030 | if (d > 9) d += (tc == 'x') ? 0x27 : 0x07;\r | |
70702af1 | 7031 | str[i++] = d + '0';\r |
5630b930 L |
7032 | } while (v && i < SZ_NUM_BUF);\r |
7033 | if (f & 1) str[i++] = '-'; /* Sign */\r | |
7034 | /* Write it */\r | |
7035 | for (j = i; !(f & 2) && j < w; j++) { /* Left pads */\r | |
7036 | putc_bfd(&pb, pad);\r | |
7037 | }\r | |
7038 | do { /* Body */\r | |
7039 | putc_bfd(&pb, (TCHAR)str[--i]);\r | |
289f6a14 | 7040 | } while (i);\r |
5630b930 L |
7041 | while (j++ < w) { /* Right pads */\r |
7042 | putc_bfd(&pb, ' ');\r | |
7043 | }\r | |
53668523 L |
7044 | }\r |
7045 | \r | |
7046 | va_end(arp);\r | |
7047 | \r | |
70702af1 | 7048 | return putc_flush(&pb);\r |
53668523 L |
7049 | }\r |
7050 | \r | |
289f6a14 L |
7051 | #endif /* !FF_FS_READONLY */\r |
7052 | #endif /* FF_USE_STRFUNC */\r | |
7053 | \r | |
7054 | \r | |
7055 | \r | |
7056 | #if FF_CODE_PAGE == 0\r | |
7057 | /*-----------------------------------------------------------------------*/\r | |
7058 | /* Set Active Codepage for the Path Name */\r | |
7059 | /*-----------------------------------------------------------------------*/\r | |
7060 | \r | |
7061 | FRESULT f_setcp (\r | |
7062 | WORD cp /* Value to be set as active code page */\r | |
7063 | )\r | |
7064 | {\r | |
5630b930 L |
7065 | static const WORD validcp[22] = { 437, 720, 737, 771, 775, 850, 852, 855, 857, 860, 861, 862, 863, 864, 865, 866, 869, 932, 936, 949, 950, 0};\r |
7066 | static const BYTE *const tables[22] = {Ct437, Ct720, Ct737, Ct771, Ct775, Ct850, Ct852, Ct855, Ct857, Ct860, Ct861, Ct862, Ct863, Ct864, Ct865, Ct866, Ct869, Dc932, Dc936, Dc949, Dc950, 0};\r | |
289f6a14 L |
7067 | UINT i;\r |
7068 | \r | |
7069 | \r | |
7070 | for (i = 0; validcp[i] != 0 && validcp[i] != cp; i++) ; /* Find the code page */\r | |
5630b930 | 7071 | if (validcp[i] != cp) return FR_INVALID_PARAMETER; /* Not found? */\r |
289f6a14 L |
7072 | \r |
7073 | CodePage = cp;\r | |
7074 | if (cp >= 900) { /* DBCS */\r | |
7075 | ExCvt = 0;\r | |
7076 | DbcTbl = tables[i];\r | |
7077 | } else { /* SBCS */\r | |
7078 | ExCvt = tables[i];\r | |
7079 | DbcTbl = 0;\r | |
7080 | }\r | |
7081 | return FR_OK;\r | |
7082 | }\r | |
7083 | #endif /* FF_CODE_PAGE == 0 */\r | |
7084 | \r |