| 1 | /*----------------------------------------------------------------------------/
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| 2 | / FatFs - Generic FAT file system module R0.12c /
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| 3 | /-----------------------------------------------------------------------------/
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| 4 | /
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| 5 | / Copyright (C) 2017, ChaN, all right reserved.
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| 6 | /
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| 7 | / FatFs module is an open source software. Redistribution and use of FatFs in
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| 8 | / source and binary forms, with or without modification, are permitted provided
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| 9 | / that the following condition is met:
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| 10 |
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| 11 | / 1. Redistributions of source code must retain the above copyright notice,
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| 12 | / this condition and the following disclaimer.
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| 13 | /
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| 14 | / This software is provided by the copyright holder and contributors "AS IS"
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| 15 | / and any warranties related to this software are DISCLAIMED.
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| 16 | / The copyright owner or contributors be NOT LIABLE for any damages caused
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| 17 | / by use of this software.
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| 18 | /----------------------------------------------------------------------------*/
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| 19 |
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| 20 |
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| 21 | #ifndef _FATFS
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| 22 | #define _FATFS 68300 /* Revision ID */
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| 23 |
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| 24 | #ifdef __cplusplus
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| 25 | extern "C" {
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| 26 | #endif
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| 27 |
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| 28 | #include "integer.h" /* Basic integer types */
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| 29 | #include "ffconf.h" /* FatFs configuration options */
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| 30 |
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| 31 | #if _FATFS != _FFCONF
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| 32 | #error Wrong configuration file (ffconf.h).
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| 33 | #endif
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| 34 |
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| 35 |
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| 36 |
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| 37 | /* Definitions of volume management */
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| 38 |
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| 39 | #if _MULTI_PARTITION /* Multiple partition configuration */
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| 40 | typedef struct {
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| 41 | BYTE pd; /* Physical drive number */
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| 42 | BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
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| 43 | } PARTITION;
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| 44 | extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
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| 45 | #endif
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| 46 |
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| 47 |
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| 48 |
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| 49 | /* Type of path name strings on FatFs API */
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| 50 |
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| 51 | #if _LFN_UNICODE /* Unicode (UTF-16) string */
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| 52 | #if _USE_LFN == 0
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| 53 | #error _LFN_UNICODE must be 0 at non-LFN cfg.
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| 54 | #endif
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| 55 | #ifndef _INC_TCHAR
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| 56 | typedef WCHAR TCHAR;
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| 57 | #define _T(x) L ## x
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| 58 | #define _TEXT(x) L ## x
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| 59 | #endif
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| 60 | #else /* ANSI/OEM string */
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| 61 | #ifndef _INC_TCHAR
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| 62 | typedef char TCHAR;
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| 63 | #define _T(x) x
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| 64 | #define _TEXT(x) x
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| 65 | #endif
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| 66 | #endif
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| 67 |
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| 68 |
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| 69 |
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| 70 | /* Type of file size variables */
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| 71 |
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| 72 | #if _FS_EXFAT
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| 73 | #if _USE_LFN == 0
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| 74 | #error LFN must be enabled when enable exFAT
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| 75 | #endif
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| 76 | typedef QWORD FSIZE_t;
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| 77 | #else
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| 78 | typedef DWORD FSIZE_t;
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| 79 | #endif
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| 80 |
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| 81 |
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| 82 |
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| 83 | /* File system object structure (FATFS) */
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| 84 |
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| 85 | typedef struct {
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| 86 | BYTE fs_type; /* File system type (0:N/A) */
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| 87 | BYTE drv; /* Physical drive number */
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| 88 | BYTE n_fats; /* Number of FATs (1 or 2) */
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| 89 | BYTE wflag; /* win[] flag (b0:dirty) */
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| 90 | BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
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| 91 | WORD id; /* File system mount ID */
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| 92 | WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
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| 93 | WORD csize; /* Cluster size [sectors] */
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| 94 | #if _MAX_SS != _MIN_SS
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| 95 | WORD ssize; /* Sector size (512, 1024, 2048 or 4096) */
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| 96 | #endif
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| 97 | #if _USE_LFN != 0
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| 98 | WCHAR* lfnbuf; /* LFN working buffer */
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| 99 | #endif
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| 100 | #if _FS_EXFAT
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| 101 | BYTE* dirbuf; /* Directory entry block scratchpad buffer */
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| 102 | #endif
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| 103 | #if _FS_REENTRANT
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| 104 | _SYNC_t sobj; /* Identifier of sync object */
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| 105 | #endif
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| 106 | #if !_FS_READONLY
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| 107 | DWORD last_clst; /* Last allocated cluster */
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| 108 | DWORD free_clst; /* Number of free clusters */
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| 109 | #endif
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| 110 | #if _FS_RPATH != 0
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| 111 | DWORD cdir; /* Current directory start cluster (0:root) */
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| 112 | #if _FS_EXFAT
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| 113 | DWORD cdc_scl; /* Containing directory start cluster (invalid when cdir is 0) */
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| 114 | DWORD cdc_size; /* b31-b8:Size of containing directory, b7-b0: Chain status */
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| 115 | DWORD cdc_ofs; /* Offset in the containing directory (invalid when cdir is 0) */
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| 116 | #endif
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| 117 | #endif
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| 118 | DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */
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| 119 | DWORD fsize; /* Size of an FAT [sectors] */
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| 120 | DWORD volbase; /* Volume base sector */
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| 121 | DWORD fatbase; /* FAT base sector */
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| 122 | DWORD dirbase; /* Root directory base sector/cluster */
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| 123 | DWORD database; /* Data base sector */
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| 124 | DWORD winsect; /* Current sector appearing in the win[] */
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| 125 | BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
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| 126 | } FATFS;
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| 127 |
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| 128 |
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| 129 |
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| 130 | /* Object ID and allocation information (_FDID) */
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| 131 |
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| 132 | typedef struct {
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| 133 | FATFS* fs; /* Pointer to the owner file system object */
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| 134 | WORD id; /* Owner file system mount ID */
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| 135 | BYTE attr; /* Object attribute */
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| 136 | BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous (no data on FAT), =3:flagmented in this session, b2:sub-directory stretched) */
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| 137 | DWORD sclust; /* Object start cluster (0:no cluster or root directory) */
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| 138 | FSIZE_t objsize; /* Object size (valid when sclust != 0) */
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| 139 | #if _FS_EXFAT
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| 140 | DWORD n_cont; /* Size of first fragment, clusters - 1 (valid when stat == 3) */
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| 141 | DWORD n_frag; /* Size of last fragment needs to be written (valid when not zero) */
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| 142 | DWORD c_scl; /* Containing directory start cluster (valid when sclust != 0) */
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| 143 | DWORD c_size; /* b31-b8:Size of containing directory, b7-b0: Chain status (valid when c_scl != 0) */
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| 144 | DWORD c_ofs; /* Offset in the containing directory (valid when sclust != 0 and non-directory object) */
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| 145 | #endif
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| 146 | #if _FS_LOCK != 0
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| 147 | UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
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| 148 | #endif
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| 149 | } _FDID;
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| 150 |
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| 151 |
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| 152 |
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| 153 | /* File object structure (FIL) */
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| 154 |
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| 155 | typedef struct {
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| 156 | _FDID obj; /* Object identifier (must be the 1st member to detect invalid object pointer) */
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| 157 | BYTE flag; /* File status flags */
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| 158 | BYTE err; /* Abort flag (error code) */
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| 159 | FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */
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| 160 | DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */
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| 161 | DWORD sect; /* Sector number appearing in buf[] (0:invalid) */
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| 162 | #if !_FS_READONLY
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| 163 | DWORD dir_sect; /* Sector number containing the directory entry */
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| 164 | BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
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| 165 | #endif
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| 166 | #if _USE_FASTSEEK
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| 167 | DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open, set by application) */
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| 168 | #endif
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| 169 | #if !_FS_TINY
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| 170 | BYTE buf[_MAX_SS]; /* File private data read/write window */
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| 171 | #endif
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| 172 | } FIL;
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| 173 |
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| 174 |
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| 175 |
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| 176 | /* Directory object structure (DIR) */
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| 177 |
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| 178 | typedef struct {
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| 179 | _FDID obj; /* Object identifier */
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| 180 | DWORD dptr; /* Current read/write offset */
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| 181 | DWORD clust; /* Current cluster */
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| 182 | DWORD sect; /* Current sector (0:Read operation has terminated) */
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| 183 | BYTE* dir; /* Pointer to the directory item in the win[] */
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| 184 | BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */
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| 185 | #if _USE_LFN != 0
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| 186 | DWORD blk_ofs; /* Offset of current entry block being processed (0xFFFFFFFF:Invalid) */
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| 187 | #endif
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| 188 | #if _USE_FIND
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| 189 | const TCHAR* pat; /* Pointer to the name matching pattern */
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| 190 | #endif
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| 191 | } DIR;
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| 192 |
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| 193 |
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| 194 |
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| 195 | /* File information structure (FILINFO) */
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| 196 |
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| 197 | typedef struct {
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| 198 | FSIZE_t fsize; /* File size */
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| 199 | WORD fdate; /* Modified date */
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| 200 | WORD ftime; /* Modified time */
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| 201 | BYTE fattrib; /* File attribute */
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| 202 | #if _USE_LFN != 0
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| 203 | TCHAR altname[13]; /* Alternative file name */
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| 204 | TCHAR fname[_MAX_LFN + 1]; /* Primary file name */
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| 205 | #else
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| 206 | TCHAR fname[13]; /* File name */
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| 207 | #endif
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| 208 | } FILINFO;
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| 209 |
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| 210 |
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| 211 |
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| 212 | /* File function return code (FRESULT) */
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| 213 |
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| 214 | typedef enum {
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| 215 | FR_OK = 0, /* (0) Succeeded */
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| 216 | FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
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| 217 | FR_INT_ERR, /* (2) Assertion failed */
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| 218 | FR_NOT_READY, /* (3) The physical drive cannot work */
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| 219 | FR_NO_FILE, /* (4) Could not find the file */
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| 220 | FR_NO_PATH, /* (5) Could not find the path */
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| 221 | FR_INVALID_NAME, /* (6) The path name format is invalid */
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| 222 | FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
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| 223 | FR_EXIST, /* (8) Access denied due to prohibited access */
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| 224 | FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
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| 225 | FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
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| 226 | FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
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| 227 | FR_NOT_ENABLED, /* (12) The volume has no work area */
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| 228 | FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
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| 229 | FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */
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| 230 | FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
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| 231 | FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
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| 232 | FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
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| 233 | FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
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| 234 | FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
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| 235 | } FRESULT;
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| 236 |
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| 237 |
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| 238 |
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| 239 | /*--------------------------------------------------------------*/
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| 240 | /* FatFs module application interface */
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| 241 |
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| 242 | FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
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| 243 | FRESULT f_close (FIL* fp); /* Close an open file object */
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| 244 | FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */
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| 245 | FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to the file */
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| 246 | FRESULT f_lseek (FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */
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| 247 | FRESULT f_truncate (FIL* fp); /* Truncate the file */
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| 248 | FRESULT f_sync (FIL* fp); /* Flush cached data of the writing file */
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| 249 | FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
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| 250 | FRESULT f_closedir (DIR* dp); /* Close an open directory */
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| 251 | FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
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| 252 | FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
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| 253 | FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */
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| 254 | FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
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| 255 | FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
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| 256 | FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
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| 257 | FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
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| 258 | FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of a file/dir */
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| 259 | FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change timestamp of a file/dir */
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| 260 | FRESULT f_chdir (const TCHAR* path); /* Change current directory */
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| 261 | FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
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| 262 | FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
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| 263 | FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
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| 264 | FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
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| 265 | FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
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| 266 | FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
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| 267 | FRESULT f_expand (FIL* fp, FSIZE_t szf, BYTE opt); /* Allocate a contiguous block to the file */
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| 268 | FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
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| 269 | FRESULT f_mkfs (const TCHAR* path, BYTE opt, DWORD au, void* work, UINT len); /* Create a FAT volume */
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| 270 | FRESULT f_fdisk (BYTE pdrv, const DWORD* szt, void* work); /* Divide a physical drive into some partitions */
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| 271 | int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
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| 272 | int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
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| 273 | int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
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| 274 | TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
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| 275 |
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| 276 | #define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize))
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| 277 | #define f_error(fp) ((fp)->err)
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| 278 | #define f_tell(fp) ((fp)->fptr)
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| 279 | #define f_size(fp) ((fp)->obj.objsize)
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| 280 | #define f_rewind(fp) f_lseek((fp), 0)
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| 281 | #define f_rewinddir(dp) f_readdir((dp), 0)
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| 282 | #define f_rmdir(path) f_unlink(path)
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| 283 |
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| 284 | #ifndef EOF
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| 285 | #define EOF (-1)
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| 286 | #endif
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| 287 |
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| 288 |
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| 289 |
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| 290 |
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| 291 | /*--------------------------------------------------------------*/
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| 292 | /* Additional user defined functions */
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| 293 |
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| 294 | /* RTC function */
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| 295 | #if !_FS_READONLY && !_FS_NORTC
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| 296 | DWORD get_fattime (void);
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| 297 | #endif
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| 298 |
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| 299 | /* Unicode support functions */
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| 300 | #if _USE_LFN != 0 /* Unicode - OEM code conversion */
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| 301 | WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
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| 302 | WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
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| 303 | #if _USE_LFN == 3 /* Memory functions */
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| 304 | void* ff_memalloc (UINT msize); /* Allocate memory block */
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| 305 | void ff_memfree (void* mblock); /* Free memory block */
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| 306 | #endif
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| 307 | #endif
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| 308 |
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| 309 | /* Sync functions */
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| 310 | #if _FS_REENTRANT
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| 311 | int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
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| 312 | int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
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| 313 | void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
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| 314 | int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
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| 315 | #endif
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| 316 |
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| 317 |
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| 318 |
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| 319 |
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| 320 | /*--------------------------------------------------------------*/
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| 321 | /* Flags and offset address */
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| 322 |
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| 323 |
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| 324 | /* File access mode and open method flags (3rd argument of f_open) */
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| 325 | #define FA_READ 0x01
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| 326 | #define FA_WRITE 0x02
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| 327 | #define FA_OPEN_EXISTING 0x00
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| 328 | #define FA_CREATE_NEW 0x04
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| 329 | #define FA_CREATE_ALWAYS 0x08
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| 330 | #define FA_OPEN_ALWAYS 0x10
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| 331 | #define FA_OPEN_APPEND 0x30
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| 332 |
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| 333 | /* Fast seek controls (2nd argument of f_lseek) */
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| 334 | #define CREATE_LINKMAP ((FSIZE_t)0 - 1)
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| 335 |
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| 336 | /* Format options (2nd argument of f_mkfs) */
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| 337 | #define FM_FAT 0x01
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| 338 | #define FM_FAT32 0x02
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| 339 | #define FM_EXFAT 0x04
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| 340 | #define FM_ANY 0x07
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| 341 | #define FM_SFD 0x08
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| 342 |
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| 343 | /* Filesystem type (FATFS.fs_type) */
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| 344 | #define FS_FAT12 1
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| 345 | #define FS_FAT16 2
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| 346 | #define FS_FAT32 3
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| 347 | #define FS_EXFAT 4
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| 348 |
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| 349 | /* File attribute bits for directory entry (FILINFO.fattrib) */
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| 350 | #define AM_RDO 0x01 /* Read only */
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| 351 | #define AM_HID 0x02 /* Hidden */
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| 352 | #define AM_SYS 0x04 /* System */
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| 353 | #define AM_DIR 0x10 /* Directory */
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| 354 | #define AM_ARC 0x20 /* Archive */
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| 355 |
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| 356 |
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| 357 | #ifdef __cplusplus
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| 358 | }
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| 359 | #endif
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| 360 |
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| 361 | #endif /* _FATFS */
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