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373 lines
14 KiB
373 lines
14 KiB
/*---------------------------------------------------------------------------/ |
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/ FatFs - FAT file system module include R0.11 (C)ChaN, 2015 |
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/----------------------------------------------------------------------------/ |
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/ FatFs module is a free software that opened under license policy of |
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/ following conditions. |
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/ |
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/ Copyright (C) 2015, ChaN, all right reserved. |
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/ |
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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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#ifndef _FATFS |
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#define _FATFS 32020 /* 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 _FATFS != _FFCONF |
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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 _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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#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */ |
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#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */ |
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#else /* Single partition configuration */ |
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#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */ |
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#define LD2PT(vol) 0 /* Find first valid partition or in SFD */ |
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#endif |
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/* Type of path name strings on FatFs API */ |
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#if _LFN_UNICODE /* Unicode string */ |
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#if !_USE_LFN |
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#error _LFN_UNICODE must be 0 at non-LFN cfg. |
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#endif |
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#ifndef _INC_TCHAR |
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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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#endif |
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#else /* ANSI/OEM string */ |
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#ifndef _INC_TCHAR |
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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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/* File system object structure (FATFS) */ |
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typedef struct { |
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union{ |
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UINT d32[_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE d8[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */ |
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}win; |
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BYTE fs_type; /* FAT sub-type (0:Not mounted) */ |
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BYTE drv; /* Physical drive number */ |
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BYTE csize; /* Sectors per cluster (1,2,4...128) */ |
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BYTE n_fats; /* Number of FAT copies (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; /* File system mount ID */ |
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WORD n_rootdir; /* Number of root directory entries (FAT12/16) */ |
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#if _MAX_SS != _MIN_SS |
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WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */ |
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#endif |
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#if _FS_REENTRANT |
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_SYNC_t sobj; /* Identifier of sync object */ |
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#endif |
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#if !_FS_READONLY |
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DWORD last_clust; /* Last allocated cluster */ |
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DWORD free_clust; /* Number of free clusters */ |
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#endif |
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#if _FS_RPATH |
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DWORD cdir; /* Current directory start cluster (0:root) */ |
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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; /* Sectors per FAT */ |
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DWORD volbase; /* Volume start sector */ |
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DWORD fatbase; /* FAT start sector */ |
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DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */ |
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DWORD database; /* Data start sector */ |
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DWORD winsect; /* Current sector appearing in the win[] */ |
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} FATFS; |
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/* File object structure (FIL) */ |
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typedef struct { |
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#if !_FS_TINY |
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union{ |
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UINT d32[_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE d8[_MAX_SS]; /* File data read/write buffer */ |
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}buf; |
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#endif |
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FATFS* fs; /* Pointer to the related file system object (**do not change order**) */ |
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WORD id; /* Owner file system mount ID (**do not change order**) */ |
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BYTE flag; /* Status flags */ |
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BYTE err; /* Abort flag (error code) */ |
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DWORD fptr; /* File read/write pointer (Zeroed on file open) */ |
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DWORD fsize; /* File size */ |
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DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */ |
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DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */ |
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DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */ |
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#if !_FS_READONLY |
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DWORD dir_sect; /* Sector number containing the directory entry */ |
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BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */ |
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#endif |
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#if _USE_FASTSEEK |
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DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */ |
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#endif |
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#if _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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} 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[_MAX_SS/4]; /* Force 32bits alignement */ |
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BYTE d8[_MAX_SS]; /* File data read/write buffer */ |
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}buf; |
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#endif |
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FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */ |
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WORD id; /* Owner file system mount ID (**do not change order**) */ |
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WORD index; /* Current read/write index number */ |
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DWORD sclust; /* Table start cluster (0:Root dir) */ |
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DWORD clust; /* Current cluster */ |
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DWORD sect; /* Current sector */ |
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BYTE* dir; /* Pointer to the current SFN entry in the win[] */ |
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BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */ |
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#if _FS_LOCK |
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UINT lockid; /* File lock ID (index of file semaphore table Files[]) */ |
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#endif |
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#if _USE_LFN |
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WCHAR* lfn; /* Pointer to the LFN working buffer */ |
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WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */ |
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#endif |
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#if _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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DWORD fsize; /* File size */ |
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WORD fdate; /* Last modified date */ |
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WORD ftime; /* Last modified time */ |
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BYTE fattrib; /* Attribute */ |
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TCHAR fname[13]; /* Short file name (8.3 format) */ |
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#if _USE_LFN |
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TCHAR* lfname; /* Pointer to the LFN buffer */ |
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UINT lfsize; /* Size of LFN buffer in TCHAR */ |
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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 parameter error */ |
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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 > _FS_SHARE */ |
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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 a file */ |
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FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */ |
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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_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */ |
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FRESULT f_truncate (FIL* fp); /* Truncate file */ |
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FRESULT f_sync (FIL* fp); /* Flush cached data of a 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 the file/dir */ |
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FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the 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_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */ |
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FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the 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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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 (FATFS** rfs, const TCHAR** path, BYTE wmode); |
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#define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize)) |
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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)->fsize) |
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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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#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 !_FS_READONLY && !_FS_NORTC |
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DWORD get_fattime (void); |
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#endif |
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/* Unicode support functions */ |
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#if _USE_LFN /* Unicode - OEM code conversion */ |
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WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */ |
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WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */ |
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#if _USE_LFN == 3 /* Memory functions */ |
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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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#endif |
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/* Sync functions */ |
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#if _FS_REENTRANT |
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int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */ |
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int ff_req_grant (_SYNC_t sobj); /* Lock sync object */ |
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void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */ |
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int ff_del_syncobj (_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 control and file status flags (FIL.flag) */ |
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#define FA_READ 0x01 |
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#define FA_OPEN_EXISTING 0x00 |
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#if !_FS_READONLY |
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#define FA_WRITE 0x02 |
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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__WRITTEN 0x20 |
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#define FA__DIRTY 0x40 |
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#endif |
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/* FAT sub 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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/* File attribute bits for directory entry */ |
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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_VOL 0x08 /* Volume label */ |
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#define AM_LFN 0x0F /* LFN entry */ |
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#define AM_DIR 0x10 /* Directory */ |
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#define AM_ARC 0x20 /* Archive */ |
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#define AM_MASK 0x3F /* Mask of defined bits */ |
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/* Fast seek feature */ |
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#define CREATE_LINKMAP 0xFFFFFFFF |
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/*--------------------------------*/ |
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/* Multi-byte word access macros */ |
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#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */ |
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#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) |
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#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) |
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#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) |
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#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) |
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#else /* Use byte-by-byte access to the FAT structure */ |
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#define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr)) |
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#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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#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8) |
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#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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#endif |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _FATFS */
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