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395 lines
15 KiB
395 lines
15 KiB
/*----------------------------------------------------------------------------/ |
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/ FatFs - Generic FAT Filesystem module R0.13b / |
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/-----------------------------------------------------------------------------/ |
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/ |
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/ Copyright (C) 2018, ChaN, all right reserved. |
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/ |
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/ FatFs module is an open source software. Redistribution and use of FatFs in |
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/ source and binary forms, with or without modification, are permitted provided |
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/ that the following condition is met: |
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/ 1. Redistributions of source code must retain the above copyright notice, |
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/ this condition and the following disclaimer. |
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/ |
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/ This software is provided by the copyright holder and contributors "AS IS" |
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/ and any warranties related to this software are DISCLAIMED. |
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/ The copyright owner or contributors be NOT LIABLE for any damages caused |
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/ by use of this software. |
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/ |
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/----------------------------------------------------------------------------*/ |
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#ifndef FF_DEFINED |
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#define FF_DEFINED 63463 /* Revision ID */ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include "integer.h" /* Basic integer types */ |
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#include "ffconf.h" /* FatFs configuration options */ |
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#include <util.h> |
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#include <string.h> |
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#if FF_DEFINED != FFCONF_DEF |
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#error Wrong configuration file (ffconf.h). |
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#endif |
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/* Definitions of volume management */ |
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#if FF_MULTI_PARTITION /* Multiple partition configuration */ |
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typedef struct { |
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BYTE pd; /* Physical drive number */ |
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BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */ |
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} PARTITION; |
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extern PARTITION VolToPart[]; /* Volume - Partition resolution table */ |
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#endif |
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#if FF_STR_VOLUME_ID |
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#ifndef FF_VOLUME_STRS |
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extern const char* VolumeStr[FF_VOLUMES]; /* User defied volume ID */ |
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#endif |
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#endif |
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/* Type of path name strings on FatFs API */ |
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#ifndef _INC_TCHAR |
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#define _INC_TCHAR |
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#if FF_USE_LFN && FF_LFN_UNICODE == 1 /* Unicode in UTF-16 encoding */ |
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typedef WCHAR TCHAR; |
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#define _T(x) L ## x |
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#define _TEXT(x) L ## x |
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#elif FF_USE_LFN && FF_LFN_UNICODE == 2 /* Unicode in UTF-8 encoding */ |
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typedef char TCHAR; |
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#define _T(x) u8 ## x |
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#define _TEXT(x) u8 ## x |
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#elif FF_USE_LFN && FF_LFN_UNICODE == 3 /* Unicode in UTF-32 encoding */ |
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typedef DWORD TCHAR; |
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#define _T(x) U ## x |
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#define _TEXT(x) U ## x |
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#elif FF_USE_LFN && (FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3) |
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#error Wrong FF_LFN_UNICODE setting |
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#else /* ANSI/OEM code in SBCS/DBCS */ |
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typedef char TCHAR; |
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#define _T(x) x |
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#define _TEXT(x) x |
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#endif |
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#endif |
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/* Type of file size variables */ |
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#if FF_FS_EXFAT |
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typedef QWORD FSIZE_t; |
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#else |
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typedef DWORD FSIZE_t; |
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#endif |
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/* Filesystem object structure (FATFS) */ |
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typedef struct { |
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// BYTE win[FFFF_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */ |
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union{ |
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UINT d32[FF_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE win[FF_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */ |
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}; |
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BYTE fs_type; /* Filesystem type (0:N/A) */ |
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BYTE pdrv; /* Physical drive number */ |
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BYTE n_fats; /* Number of FATs (1 or 2) */ |
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BYTE wflag; /* win[] flag (b0:dirty) */ |
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BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */ |
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WORD id; /* Volume mount ID */ |
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WORD n_rootdir; /* Number of root directory entries (FAT12/16) */ |
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WORD csize; /* Cluster size [sectors] */ |
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#if FFFF_MAX_SS != FF_MIN_SS |
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WORD ssize; /* Sector size (512, 1024, 2048 or 4096) */ |
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#endif |
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#if FF_USE_LFN |
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WCHAR* lfnbuf; /* LFN working buffer */ |
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#endif |
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#if FF_FS_EXFAT |
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BYTE* dirbuf; /* Directory entry block scratchpad buffer for exFAT */ |
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#endif |
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#if FF_FS_REENTRANT |
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FF_SYNC_t sobj; /* Identifier of sync object */ |
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#endif |
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#if !FF_FS_READONLY |
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DWORD last_clst; /* Last allocated cluster */ |
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DWORD free_clst; /* Number of free clusters */ |
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#endif |
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#if FF_FS_RPATH |
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DWORD cdir; /* Current directory start cluster (0:root) */ |
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#if FF_FS_EXFAT |
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DWORD cdc_scl; /* Containing directory start cluster (invalid when cdir is 0) */ |
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DWORD cdc_size; /* b31-b8:Size of containing directory, b7-b0: Chain status */ |
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DWORD cdc_ofs; /* Offset in the containing directory (invalid when cdir is 0) */ |
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#endif |
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#endif |
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DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */ |
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DWORD fsize; /* Size of an FAT [sectors] */ |
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DWORD volbase; /* Volume base sector */ |
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DWORD fatbase; /* FAT base sector */ |
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DWORD dirbase; /* Root directory base sector/cluster */ |
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DWORD database; /* Data base sector */ |
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DWORD winsect; /* Current sector appearing in the win[] */ |
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} FATFS; |
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/* Object ID and allocation information (FFOBJID) */ |
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typedef struct { |
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FATFS* fs; /* Pointer to the hosting volume of this object */ |
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WORD id; /* Hosting volume mount ID */ |
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BYTE attr; /* Object attribute */ |
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BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous, =3:flagmented in this session, b2:sub-directory stretched) */ |
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DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */ |
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FSIZE_t objsize; /* Object size (valid when sclust != 0) */ |
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#if FF_FS_EXFAT |
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DWORD n_cont; /* Size of first fragment - 1 (valid when stat == 3) */ |
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DWORD n_frag; /* Size of last fragment needs to be written to FAT (valid when not zero) */ |
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DWORD c_scl; /* Containing directory start cluster (valid when sclust != 0) */ |
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DWORD c_size; /* b31-b8:Size of containing directory, b7-b0: Chain status (valid when c_scl != 0) */ |
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DWORD c_ofs; /* Offset in the containing directory (valid when file object and sclust != 0) */ |
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#endif |
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#if FF_FS_LOCK |
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UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */ |
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#endif |
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} FFOBJID; |
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/* File object structure (FIL) */ |
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typedef struct { |
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#if !FF_FS_TINY |
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// BYTE buf[FFFF_MAX_SS]; /* File private data read/write window */ |
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union{ |
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UINT d32[FF_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE buf[FF_MAX_SS]; /* File data read/write buffer */ |
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}; |
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#endif |
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FFOBJID obj; /* Object identifier (must be the 1st member to detect invalid object pointer) */ |
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BYTE flag; /* File status flags */ |
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BYTE err; /* Abort flag (error code) */ |
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FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */ |
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DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */ |
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DWORD sect; /* Sector number appearing in buf[] (0:invalid) */ |
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#if !FF_FS_READONLY |
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DWORD dir_sect; /* Sector number containing the directory entry (not used at exFAT) */ |
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BYTE* dir_ptr; /* Pointer to the directory entry in the win[] (not used at exFAT) */ |
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#endif |
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#if FF_USE_FASTSEEK |
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DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open, set by application) */ |
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#endif |
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} FIL; |
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/* Directory object structure (DIR) */ |
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typedef struct { |
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#if !_FS_TINY |
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union{ |
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UINT d32[FF_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE buf[FF_MAX_SS]; /* File data read/write buffer */ |
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}; |
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#endif |
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FFOBJID obj; /* Object identifier */ |
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DWORD dptr; /* Current read/write offset */ |
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DWORD clust; /* Current cluster */ |
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DWORD sect; /* Current sector (0:Read operation has terminated) */ |
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BYTE* dir; /* Pointer to the directory item in the win[] */ |
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BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */ |
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#if FF_USE_LFN |
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DWORD blk_ofs; /* Offset of current entry block being processed (0xFFFFFFFF:Invalid) */ |
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#endif |
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#if FF_USE_FIND |
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const TCHAR* pat; /* Pointer to the name matching pattern */ |
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#endif |
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} DIR; |
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/* File information structure (FILINFO) */ |
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typedef struct { |
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FSIZE_t fsize; /* File size */ |
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WORD fdate; /* Modified date */ |
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WORD ftime; /* Modified time */ |
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BYTE fattrib; /* File attribute */ |
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#if FF_USE_LFN |
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TCHAR altname[FF_SFN_BUF + 1];/* Altenative file name */ |
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TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */ |
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#else |
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TCHAR fname[12 + 1]; /* File name */ |
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#endif |
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} FILINFO; |
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/* File function return code (FRESULT) */ |
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typedef enum { |
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FR_OK = 0, /* (0) Succeeded */ |
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FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */ |
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FR_INT_ERR, /* (2) Assertion failed */ |
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FR_NOT_READY, /* (3) The physical drive cannot work */ |
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FR_NO_FILE, /* (4) Could not find the file */ |
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FR_NO_PATH, /* (5) Could not find the path */ |
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FR_INVALID_NAME, /* (6) The path name format is invalid */ |
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FR_DENIED, /* (7) Access denied due to prohibited access or directory full */ |
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FR_EXIST, /* (8) Access denied due to prohibited access */ |
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FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */ |
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FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */ |
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FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */ |
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FR_NOT_ENABLED, /* (12) The volume has no work area */ |
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FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */ |
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FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */ |
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FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */ |
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FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */ |
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FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */ |
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FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > FF_FS_LOCK */ |
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FR_INVALID_PARAMETER, /* (19) Given parameter is invalid */ |
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FR_IS_DIR |
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} FRESULT; |
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/*--------------------------------------------------------------*/ |
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/* FatFs module application interface */ |
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FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */ |
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FRESULT f_close (FIL* fp); /* Close an open file object */ |
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FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */ |
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FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to the file */ |
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FRESULT f_lseek (FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */ |
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FRESULT f_truncate (FIL* fp); /* Truncate the file */ |
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FRESULT f_sync (FIL* fp); /* Flush cached data of the writing file */ |
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FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */ |
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FRESULT f_closedir (DIR* dp); /* Close an open directory */ |
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FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */ |
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FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */ |
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FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */ |
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FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */ |
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FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */ |
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FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */ |
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FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */ |
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FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of a file/dir */ |
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FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change timestamp of a file/dir */ |
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FRESULT f_chdir (const TCHAR* path); /* Change current directory */ |
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FRESULT f_chdrive (const TCHAR* path); /* Change current drive */ |
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FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */ |
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FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */ |
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FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */ |
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FRESULT f_setlabel (const TCHAR* label); /* Set volume label */ |
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FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */ |
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FRESULT f_expand (FIL* fp, FSIZE_t szf, BYTE opt); /* Allocate a contiguous block to the file */ |
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FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */ |
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FRESULT f_mkfs (const TCHAR* path, BYTE opt, DWORD au, void* work, UINT len); /* Create a FAT volume */ |
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FRESULT f_fdisk (BYTE pdrv, const DWORD* szt, void* work); /* Divide a physical drive into some partitions */ |
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FRESULT f_setcp (WORD cp); /* Set current code page */ |
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int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */ |
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int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */ |
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int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */ |
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TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */ |
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FRESULT find_volume (const TCHAR** path, FATFS** rfs, BYTE mode); |
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#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize)) |
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#define f_error(fp) ((fp)->err) |
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#define f_tell(fp) ((fp)->fptr) |
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#define f_size(fp) ((fp)->obj.objsize) |
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#define f_rewind(fp) f_lseek((fp), 0) |
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#define f_rewinddir(dp) f_readdir((dp), 0) |
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#define f_rmdir(path) f_unlink(path) |
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#define f_unmount(path) f_mount(0, path, 0) |
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#ifndef EOF |
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#define EOF (-1) |
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#endif |
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/*--------------------------------------------------------------*/ |
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/* Additional user defined functions */ |
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/* RTC function */ |
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#if !FF_FS_READONLY && !FF_FS_NORTC |
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DWORD get_fattime (void); |
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#endif |
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/* LFN support functions */ |
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#if FF_USE_LFN >= 1 /* Code conversion (defined in unicode.c) */ |
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WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */ |
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WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */ |
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DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */ |
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#endif |
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#if FF_USE_LFN == 3 /* Dynamic memory allocation */ |
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void* ff_memalloc (UINT msize); /* Allocate memory block */ |
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void ff_memfree (void* mblock); /* Free memory block */ |
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#endif |
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/* Sync functions */ |
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#if FF_FS_REENTRANT |
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int ff_cre_syncobj (BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */ |
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int ff_req_grant (FF_SYNC_t sobj); /* Lock sync object */ |
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void ff_rel_grant (FF_SYNC_t sobj); /* Unlock sync object */ |
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int ff_del_syncobj (FF_SYNC_t sobj); /* Delete a sync object */ |
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#endif |
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/*--------------------------------------------------------------*/ |
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/* Flags and offset address */ |
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/* File access mode and open method flags (3rd argument of f_open) */ |
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#define FA_READ 0x01 |
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#define FA_WRITE 0x02 |
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#define FA_OPEN_EXISTING 0x00 |
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#define FA_CREATE_NEW 0x04 // создать новый, если существует то ошибка |
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#define FA_CREATE_ALWAYS 0x08 // переписать старый |
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#define FA_OPEN_ALWAYS 0x10 |
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#define FA_OPEN_APPEND 0x30 |
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/* Fast seek controls (2nd argument of f_lseek) */ |
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#define CREATE_LINKMAP ((FSIZE_t)0 - 1) |
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/* Format options (2nd argument of f_mkfs) */ |
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#define FM_FAT 0x01 |
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#define FM_FAT32 0x02 |
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#define FM_EXFAT 0x04 |
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#define FM_ANY 0x07 |
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#define FM_SFD 0x08 |
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/* Filesystem type (FATFS.fs_type) */ |
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#define FS_FAT12 1 |
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#define FS_FAT16 2 |
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#define FS_FAT32 3 |
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#define FS_EXFAT 4 |
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/* File attribute bits for directory entry (FILINFO.fattrib) */ |
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#define AM_RDO 0x01 /* Read only */ |
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#define AM_HID 0x02 /* Hidden */ |
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#define AM_SYS 0x04 /* System */ |
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#define AM_DIR 0x10 /* Directory */ |
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#define AM_ARC 0x20 /* Archive */ |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* FF_DEFINED */
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