| 1 | /*---------------------------------------------------------------------------/
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| 2 | / FatFs - FAT file system module include R0.11a (C)ChaN, 2015
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| 3 | /----------------------------------------------------------------------------/
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| 4 | / FatFs module is a free software that opened under license policy of
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| 5 | / following conditions.
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| 6 | /
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| 7 | / Copyright (C) 2015, ChaN, all right reserved.
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| 8 | /
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| 9 | / 1. Redistributions of source code must retain the above copyright notice,
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| 10 | / this condition and the following disclaimer.
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| 11 | /
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| 12 | / This software is provided by the copyright holder and contributors "AS IS"
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| 13 | / and any warranties related to this software are DISCLAIMED.
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| 14 | / The copyright owner or contributors be NOT LIABLE for any damages caused
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| 15 | / by use of this software.
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| 16 | /---------------------------------------------------------------------------*/
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| 17 |
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| 18 |
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| 19 | #ifndef _FATFS
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| 20 | #define _FATFS 64180 /* Revision ID */
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| 21 |
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| 22 | #ifdef __cplusplus
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| 23 | extern "C" {
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| 24 | #endif
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| 25 |
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| 26 | #include <stdarg.h>
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| 27 | #include "integer.h" /* Basic integer types */
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| 28 | #include "ffconf.h" /* FatFs configuration options */
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| 29 | #if _FATFS != _FFCONF
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| 30 | #error Wrong configuration file (ffconf.h).
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| 31 | #endif
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| 32 |
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| 33 |
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| 34 |
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| 35 | /* Definitions of volume management */
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| 36 |
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| 37 | #if _MULTI_PARTITION /* Multiple partition configuration */
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| 38 | typedef struct {
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| 39 | BYTE pd; /* Physical drive number */
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| 40 | BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
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| 41 | } PARTITION;
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| 42 | extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
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| 43 | #define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
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| 44 | #define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
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| 45 |
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| 46 | #else /* Single partition configuration */
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| 47 | #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
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| 48 | #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
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| 49 |
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| 50 | #endif
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| 51 |
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| 52 |
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| 53 |
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| 54 | /* Type of path name strings on FatFs API */
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| 55 |
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| 56 | #if _LFN_UNICODE /* Unicode string */
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| 57 | #if !_USE_LFN
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| 58 | #error _LFN_UNICODE must be 0 at non-LFN cfg.
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| 59 | #endif
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| 60 | #ifndef _INC_TCHAR
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| 61 | typedef WCHAR TCHAR;
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| 62 | #define _T(x) L ## x
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| 63 | #define _TEXT(x) L ## x
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| 64 | #endif
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| 65 |
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| 66 | #else /* ANSI/OEM string */
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| 67 | #ifndef _INC_TCHAR
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| 68 | typedef char TCHAR;
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| 69 | #define _T(x) x
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| 70 | #define _TEXT(x) x
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| 71 | #endif
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| 72 |
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| 73 | #endif
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| 74 |
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| 75 |
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| 76 |
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| 77 | /* File system object structure (FATFS) */
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| 78 |
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| 79 | typedef struct {
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| 80 | BYTE fs_type; /* FAT sub-type (0:Not mounted) */
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| 81 | BYTE drv; /* Physical drive number */
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| 82 | BYTE csize; /* Sectors per cluster (1,2,4...128) */
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| 83 | BYTE n_fats; /* Number of FAT copies (1 or 2) */
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| 84 | BYTE wflag; /* win[] flag (b0:dirty) */
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| 85 | BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
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| 86 | WORD id; /* File system mount ID */
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| 87 | WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
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| 88 | #if _MAX_SS != _MIN_SS
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| 89 | WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
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| 90 | #endif
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| 91 | #if _FS_REENTRANT
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| 92 | _SYNC_t sobj; /* Identifier of sync object */
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| 93 | #endif
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| 94 | #if !_FS_READONLY
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| 95 | DWORD last_clust; /* Last allocated cluster */
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| 96 | DWORD free_clust; /* Number of free clusters */
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| 97 | #endif
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| 98 | #if _FS_RPATH
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| 99 | DWORD cdir; /* Current directory start cluster (0:root) */
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| 100 | #endif
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| 101 | DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
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| 102 | DWORD fsize; /* Sectors per FAT */
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| 103 | DWORD volbase; /* Volume start sector */
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| 104 | DWORD fatbase; /* FAT start sector */
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| 105 | DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
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| 106 | DWORD database; /* Data start sector */
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| 107 | DWORD winsect; /* Current sector appearing in the win[] */
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| 108 | BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
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| 109 | } FATFS;
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| 110 |
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| 111 |
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| 112 |
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| 113 | /* File object structure (FIL) */
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| 114 |
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| 115 | typedef struct {
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| 116 | FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
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| 117 | WORD id; /* Owner file system mount ID (**do not change order**) */
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| 118 | BYTE flag; /* Status flags */
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| 119 | BYTE err; /* Abort flag (error code) */
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| 120 | DWORD fptr; /* File read/write pointer (Zeroed on file open) */
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| 121 | DWORD fsize; /* File size */
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| 122 | DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
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| 123 | DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
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| 124 | DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
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| 125 | #if !_FS_READONLY
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| 126 | DWORD dir_sect; /* Sector number containing the directory entry */
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| 127 | BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
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| 128 | #endif
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| 129 | #if _USE_FASTSEEK
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| 130 | DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
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| 131 | #endif
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| 132 | #if _FS_LOCK
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| 133 | UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
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| 134 | #endif
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| 135 | #if !_FS_TINY
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| 136 | BYTE buf[_MAX_SS]; /* File private data read/write window */
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| 137 | #endif
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| 138 | } FIL;
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| 139 |
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| 140 |
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| 141 |
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| 142 | /* Directory object structure (DIR) */
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| 143 |
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| 144 | typedef struct {
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| 145 | FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
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| 146 | WORD id; /* Owner file system mount ID (**do not change order**) */
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| 147 | WORD index; /* Current read/write index number */
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| 148 | DWORD sclust; /* Table start cluster (0:Root dir) */
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| 149 | DWORD clust; /* Current cluster */
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| 150 | DWORD sect; /* Current sector */
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| 151 | BYTE* dir; /* Pointer to the current SFN entry in the win[] */
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| 152 | BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
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| 153 | #if _FS_LOCK
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| 154 | UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
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| 155 | #endif
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| 156 | #if _USE_LFN
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| 157 | WCHAR* lfn; /* Pointer to the LFN working buffer */
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| 158 | WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
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| 159 | #endif
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| 160 | #if _USE_FIND
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| 161 | const TCHAR* pat; /* Pointer to the name matching pattern */
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| 162 | #endif
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| 163 | } DIR;
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| 164 |
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| 165 |
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| 166 |
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| 167 | /* File information structure (FILINFO) */
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| 168 |
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| 169 | typedef struct {
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| 170 | DWORD fsize; /* File size */
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| 171 | WORD fdate; /* Last modified date */
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| 172 | WORD ftime; /* Last modified time */
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| 173 | BYTE fattrib; /* Attribute */
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| 174 | TCHAR fname[13]; /* Short file name (8.3 format) */
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| 175 | #if _USE_LFN
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| 176 | TCHAR* lfname; /* Pointer to the LFN buffer */
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| 177 | UINT lfsize; /* Size of LFN buffer in TCHAR */
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| 178 | #endif
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| 179 | } FILINFO;
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| 180 |
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| 181 |
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| 182 |
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| 183 | /* File function return code (FRESULT) */
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| 184 |
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| 185 | typedef enum {
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| 186 | FR_OK = 0, /* (0) Succeeded */
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| 187 | FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
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| 188 | FR_INT_ERR, /* (2) Assertion failed */
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| 189 | FR_NOT_READY, /* (3) The physical drive cannot work */
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| 190 | FR_NO_FILE, /* (4) Could not find the file */
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| 191 | FR_NO_PATH, /* (5) Could not find the path */
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| 192 | FR_INVALID_NAME, /* (6) The path name format is invalid */
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| 193 | FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
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| 194 | FR_EXIST, /* (8) Access denied due to prohibited access */
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| 195 | FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
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| 196 | FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
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| 197 | FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
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| 198 | FR_NOT_ENABLED, /* (12) The volume has no work area */
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| 199 | FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
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| 200 | FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
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| 201 | FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
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| 202 | FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
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| 203 | FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
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| 204 | FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
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| 205 | FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
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| 206 | } FRESULT;
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| 207 |
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| 208 |
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| 209 |
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| 210 | /*--------------------------------------------------------------*/
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| 211 | /* FatFs module application interface */
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| 212 |
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| 213 | FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
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| 214 | FRESULT f_close (FIL* fp); /* Close an open file object */
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| 215 | FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
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| 216 | FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
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| 217 | FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
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| 218 | FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
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| 219 | FRESULT f_truncate (FIL* fp); /* Truncate file */
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| 220 | FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
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| 221 | FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
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| 222 | FRESULT f_closedir (DIR* dp); /* Close an open directory */
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| 223 | FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
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| 224 | FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
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| 225 | FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */
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| 226 | FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
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| 227 | FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
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| 228 | FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
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| 229 | FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
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| 230 | FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
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| 231 | FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
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| 232 | FRESULT f_chdir (const TCHAR* path); /* Change current directory */
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| 233 | FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
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| 234 | FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
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| 235 | FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
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| 236 | FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
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| 237 | FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
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| 238 | FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
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| 239 | FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
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| 240 | FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
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| 241 | int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
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| 242 | int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
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| 243 | int f_vprintf (FIL* fp, const TCHAR* str, va_list arg); /* Put a formatted string to the file */
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| 244 | int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
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| 245 | TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
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| 246 |
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| 247 | #define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
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| 248 | #define f_error(fp) ((fp)->err)
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| 249 | #define f_tell(fp) ((fp)->fptr)
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| 250 | #define f_size(fp) ((fp)->fsize)
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| 251 | #define f_rewind(fp) f_lseek((fp), 0)
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| 252 | #define f_rewinddir(dp) f_readdir((dp), 0)
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| 253 | #define f_flush(fp)
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| 254 |
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| 255 | #define F_SEEK_SET 1
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| 256 | #define F_SEEK_CUR 2
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| 257 | #define F_SEEK_END 3
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| 258 | static FRESULT f_seek(FIL* fp, DWORD ofs, BYTE mode)
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| 259 | {
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| 260 | switch (mode) {
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| 261 | case F_SEEK_SET:
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| 262 | f_lseek((fp), ofs);
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| 263 | break;
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| 264 | case F_SEEK_CUR:
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| 265 | f_lseek((fp), (fp)->fptr + ofs);
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| 266 | break;
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| 267 | case F_SEEK_END:
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| 268 | f_lseek((fp), (fp)->fsize - ofs);
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| 269 | break;
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| 270 | default:
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| 271 | return FR_INVALID_PARAMETER;
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| 272 | }
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| 273 |
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| 274 | return FR_OK;
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| 275 | }
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| 276 |
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| 277 | #ifndef EOF
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| 278 | #define EOF (-1)
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| 279 | #endif
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| 280 |
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| 281 |
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| 282 |
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| 283 |
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| 284 | /*--------------------------------------------------------------*/
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| 285 | /* Additional user defined functions */
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| 286 |
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| 287 | /* RTC function */
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| 288 | #if !_FS_READONLY && !_FS_NORTC
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| 289 | DWORD get_fattime (void);
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| 290 | #endif
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| 291 |
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| 292 | /* Unicode support functions */
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| 293 | #if _USE_LFN /* Unicode - OEM code conversion */
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| 294 | WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
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| 295 | WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
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| 296 | #if _USE_LFN == 3 /* Memory functions */
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| 297 | void* ff_memalloc (UINT msize); /* Allocate memory block */
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| 298 | void ff_memfree (void* mblock); /* Free memory block */
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| 299 | #endif
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| 300 | #endif
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| 301 |
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| 302 | /* Sync functions */
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| 303 | #if _FS_REENTRANT
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| 304 | int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
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| 305 | int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
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| 306 | void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
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| 307 | int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
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| 308 | #endif
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| 309 |
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| 310 |
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| 311 |
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| 312 |
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| 313 | /*--------------------------------------------------------------*/
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| 314 | /* Flags and offset address */
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| 315 |
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| 316 |
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| 317 | /* File access control and file status flags (FIL.flag) */
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| 318 |
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| 319 | #define FA_READ 0x01
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| 320 | #define FA_OPEN_EXISTING 0x00
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| 321 |
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| 322 | #if !_FS_READONLY
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| 323 | #define FA_WRITE 0x02
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| 324 | #define FA_CREATE_NEW 0x04
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| 325 | #define FA_CREATE_ALWAYS 0x08
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| 326 | #define FA_OPEN_ALWAYS 0x10
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| 327 | #define FA__WRITTEN 0x20
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| 328 | #define FA__DIRTY 0x40
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| 329 | #endif
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| 330 |
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| 331 |
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| 332 | /* FAT sub type (FATFS.fs_type) */
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| 333 |
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| 334 | #define FS_FAT12 1
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| 335 | #define FS_FAT16 2
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| 336 | #define FS_FAT32 3
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| 337 |
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| 338 |
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| 339 | /* File attribute bits for directory entry */
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| 340 |
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| 341 | #define AM_RDO 0x01 /* Read only */
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| 342 | #define AM_HID 0x02 /* Hidden */
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| 343 | #define AM_SYS 0x04 /* System */
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| 344 | #define AM_VOL 0x08 /* Volume label */
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| 345 | #define AM_LFN 0x0F /* LFN entry */
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| 346 | #define AM_DIR 0x10 /* Directory */
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| 347 | #define AM_ARC 0x20 /* Archive */
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| 348 | #define AM_MASK 0x3F /* Mask of defined bits */
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| 349 |
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| 350 |
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| 351 | /* Fast seek feature */
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| 352 | #define CREATE_LINKMAP 0xFFFFFFFF
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| 353 |
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| 354 |
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| 355 |
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| 356 | /*--------------------------------*/
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| 357 | /* Multi-byte word access macros */
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| 358 |
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| 359 | #if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
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| 360 | #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
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| 361 | #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
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| 362 | #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
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| 363 | #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
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| 364 | #else /* Use byte-by-byte access to the FAT structure */
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| 365 | #define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
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| 366 | #define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
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| 367 | #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
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| 368 | #define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
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| 369 | #endif
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| 370 |
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| 371 | #ifdef __cplusplus
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| 372 | }
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| 373 | #endif
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| 374 |
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| 375 | #endif /* _FATFS */
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