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