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@ -1,5 +1,5 @@
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/*---------------------------------------------------------------------------/
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/ FatFs - FAT file system module include file R0.07e (C)ChaN, 2010
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/ FatFs - FAT file system module include file R0.08 (C)ChaN, 2010
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/----------------------------------------------------------------------------/
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/ FatFs module is a generic FAT file system module for small embedded systems.
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/ This is a free software that opened for education, research and commercial
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@ -11,15 +11,20 @@
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/ * No restriction on use. You can use, modify and redistribute it for
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/ personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
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/ * Redistributions of source code must retain the above copyright notice.
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/
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/----------------------------------------------------------------------------*/
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#ifndef _FATFS
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#define _FATFS 0x007E
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#define _FATFS 8085 /* 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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#if _FATFS != _FFCONFIG
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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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@ -219,50 +224,18 @@
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/* Character code support macros */
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#define IsUpper(c) (((c)>='A')&&((c)<='Z'))
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#define IsLower(c) (((c)>='a')&&((c)<='z'))
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#if _DF1S /* DBCS configuration */
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#ifdef _DF2S /* Two 1st byte areas */
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#define IsDBCS1(c) (((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E) || ((BYTE)(c) >= _DF2S && (BYTE)(c) <= _DF2E))
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#else /* One 1st byte area */
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#define IsDBCS1(c) ((BYTE)(c) >= _DF1S && (BYTE)(c) <= _DF1E)
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#endif
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#ifdef _DS3S /* Three 2nd byte areas */
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#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E) || ((BYTE)(c) >= _DS3S && (BYTE)(c) <= _DS3E))
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#else /* Two 2nd byte areas */
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#define IsDBCS2(c) (((BYTE)(c) >= _DS1S && (BYTE)(c) <= _DS1E) || ((BYTE)(c) >= _DS2S && (BYTE)(c) <= _DS2E))
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#endif
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#else /* SBCS configuration */
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#define IsDBCS1(c) 0
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#define IsDBCS2(c) 0
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#endif /* _DF1S */
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/* Definitions corresponds to multi partition */
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/* Definitions corresponds to volume management */
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#if _MULTI_PARTITION /* Multiple partition configuration */
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typedef struct _PARTITION {
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#define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */
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#define LD2PT(drv) (Drives[drv].pt) /* Get partition# */
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typedef struct {
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BYTE pd; /* Physical drive# */
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BYTE pt; /* Partition # (0-3) */
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} PARTITION;
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extern
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const PARTITION Drives[]; /* Logical drive# to physical location conversion table */
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#define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */
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#define LD2PT(drv) (Drives[drv].pt) /* Get partition# */
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extern const PARTITION Drives[]; /* Logical drive# to physical location conversion table */
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#else /* Single partition configuration */
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#define LD2PD(drv) (drv) /* Physical drive# is equal to the logical drive# */
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#define LD2PT(drv) 0 /* Always mounts the 1st partition */
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@ -270,120 +243,142 @@ const PARTITION Drives[]; /* Logical drive# to physical location conversion ta
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/* Definitions corresponds to multiple sector size */
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/* Type of path name strings on FatFs API */
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#if _MAX_SS == 512 /* Single sector size */
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#define SS(fs) 512U
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#elif _MAX_SS == 1024 || _MAX_SS == 2048 || _MAX_SS == 4096 /* Multiple sector size */
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#define SS(fs) ((fs)->s_size)
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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 in 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
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#error Sector size must be 512, 1024, 2048 or 4096.
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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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/* Type of file name on FatFs API */
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/* Definitions corresponds to file shareing feature */
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#if _LFN_UNICODE && _USE_LFN
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typedef WCHAR XCHAR; /* Unicode */
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#else
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typedef char XCHAR; /* SBCS, DBCS */
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#if _FS_SHARE
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#if _FS_READONLY
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#error _FS_SHARE must be 0 on R/O cfg.
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#endif
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typedef struct {
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DWORD clu; /* File ID 1, directory */
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WORD idx; /* File ID 2, index in the directory */
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WORD ctr; /* File open counter, 0:none, 0x01..0xFF:read open count, 0x100:in write open */
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} FILESEM;
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#endif
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/* File system object structure */
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/* File system object structure (FATFS) */
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typedef struct _FATFS_ {
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BYTE fs_type; /* FAT sub type */
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BYTE drive; /* Physical drive number */
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BYTE csize; /* Number of sectors per cluster */
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BYTE n_fats; /* Number of FAT copies */
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BYTE wflag; /* win[] dirty flag (1:must be written back) */
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BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
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WORD id; /* File system mount ID */
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WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */
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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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typedef struct {
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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 (1,2) */
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BYTE wflag; /* win[] dirty flag (1:must be written back) */
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BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
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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 != 512
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WORD s_size; /* Sector size */
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WORD ssize; /* Bytes per sector (512,1024,2048,4096) */
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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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DWORD fsi_sector; /* fsinfo sector */
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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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DWORD fsi_sector; /* fsinfo sector (FAT32) */
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#endif
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#if _FS_RPATH
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DWORD cdir; /* Current directory (0:root)*/
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#endif
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DWORD sects_fat; /* Sectors per fat */
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DWORD max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
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DWORD fatbase; /* FAT start sector */
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DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */
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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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BYTE win[_MAX_SS];/* Disk access window for Directory/FAT */
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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 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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BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
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#if _FS_SHARE
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FILESEM flsem[_FS_SHARE]; /* File lock semaphores */
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#endif
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} FATFS;
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/* Directory object structure */
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/* File object structure (FIL) */
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typedef struct _DIR_ {
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FATFS* fs; /* Pointer to the owner file system object */
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WORD id; /* Owner file system mount ID */
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WORD index; /* Current read/write index number */
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DWORD sclust; /* Table start cluster (0:Static table) */
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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 _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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typedef struct {
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FATFS* fs; /* Pointer to the owner file system object */
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WORD id; /* Owner file system mount ID */
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BYTE flag; /* File status flags */
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BYTE pad1;
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DWORD fptr; /* File read/write pointer */
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DWORD fsize; /* File size */
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DWORD org_clust; /* File start cluster (0 when fsize==0) */
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DWORD curr_clust; /* Current cluster */
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DWORD dsect; /* Current data sector */
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#if !_FS_READONLY
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DWORD dir_sect; /* Sector containing the directory entry */
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BYTE* dir_ptr; /* Ponter to the directory entry in the window */
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#endif
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} DIR;
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#if _USE_FASTSEEK
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DWORD* cltbl; /* Pointer to the cluster link map table */
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#endif
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#if _FS_SHARE
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UINT lockid; /* File lock ID */
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#endif
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#if !_FS_TINY
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BYTE buf[_MAX_SS]; /* File data read/write buffer */
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#endif
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} FIL;
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/* File object structure */
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/* Directory object structure (DIR) */
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typedef struct _FIL_ {
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FATFS* fs; /* Pointer to the owner file system object */
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WORD id; /* Owner file system mount ID */
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BYTE flag; /* File status flags */
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BYTE csect; /* Sector address in the cluster */
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DWORD fptr; /* File R/W pointer */
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DWORD fsize; /* File size */
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DWORD org_clust; /* File start cluster */
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DWORD curr_clust; /* Current cluster */
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DWORD dsect; /* Current data sector */
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#if !_FS_READONLY
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DWORD dir_sect; /* Sector containing the directory entry */
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BYTE* dir_ptr; /* Ponter to the directory entry in the window */
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#endif
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#if !_FS_TINY
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BYTE buf[_MAX_SS];/* File R/W buffer */
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typedef struct {
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FATFS* fs; /* Pointer to the owner file system object */
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WORD id; /* Owner file system mount ID */
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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 _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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} FIL;
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} DIR;
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/* File status structure */
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/* File status structure (FILINFO) */
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typedef struct _FILINFO_ {
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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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char fname[13]; /* Short file name (8.3 format) */
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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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XCHAR* lfname; /* Pointer to the LFN buffer */
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int lfsize; /* Size of LFN buffer [chrs] */
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TCHAR* lfname; /* Pointer to the LFN buffer */
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int lfsize; /* Size of LFN buffer [chrs] */
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#endif
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} FILINFO;
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@ -392,22 +387,25 @@ typedef struct _FILINFO_ {
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/* File function return code (FRESULT) */
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typedef enum {
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FR_OK = 0, /* 0 */
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FR_DISK_ERR, /* 1 */
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FR_INT_ERR, /* 2 */
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FR_NOT_READY, /* 3 */
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FR_NO_FILE, /* 4 */
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FR_NO_PATH, /* 5 */
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FR_INVALID_NAME, /* 6 */
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FR_DENIED, /* 7 */
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FR_EXIST, /* 8 */
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FR_INVALID_OBJECT, /* 9 */
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FR_WRITE_PROTECTED, /* 10 */
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FR_INVALID_DRIVE, /* 11 */
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FR_NOT_ENABLED, /* 12 */
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FR_NO_FILESYSTEM, /* 13 */
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FR_MKFS_ABORTED, /* 14 */
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FR_TIMEOUT /* 15 */
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FR_OK = 0, /* (0) Succeeded */
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FR_DISK_ERR, /* (1) A hard error occured 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) Acces denied due to prohibited access or directory full */
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FR_EXIST, /* (8) Acces 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 on the physical drive */
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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 shareing 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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} FRESULT;
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@ -416,66 +414,77 @@ typedef enum {
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/* FatFs module application interface */
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FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
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FRESULT f_open (FIL*, const XCHAR*, BYTE); /* Open or create a file */
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FRESULT f_open (FIL*, const TCHAR*, BYTE); /* Open or create a file */
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FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
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FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
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FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
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FRESULT f_close (FIL*); /* Close an open file object */
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FRESULT f_opendir (DIR*, const XCHAR*); /* Open an existing directory */
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FRESULT f_opendir (DIR*, const TCHAR*); /* Open an existing directory */
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FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */
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FRESULT f_stat (const XCHAR*, FILINFO*); /* Get file status */
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FRESULT f_getfree (const XCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
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FRESULT f_stat (const TCHAR*, FILINFO*); /* Get file status */
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#if !_FS_READONLY
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FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
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FRESULT f_getfree (const TCHAR*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
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FRESULT f_truncate (FIL*); /* Truncate file */
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FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
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FRESULT f_unlink (const XCHAR*); /* Delete an existing file or directory */
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FRESULT f_mkdir (const XCHAR*); /* Create a new directory */
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FRESULT f_chmod (const XCHAR*, BYTE, BYTE); /* Change attriburte of the file/dir */
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FRESULT f_utime (const XCHAR*, const FILINFO*); /* Change timestamp of the file/dir */
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FRESULT f_rename (const XCHAR*, const XCHAR*); /* Rename/Move a file or directory */
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FRESULT f_unlink (const TCHAR*); /* Delete an existing file or directory */
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FRESULT f_mkdir (const TCHAR*); /* Create a new directory */
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FRESULT f_chmod (const TCHAR*, BYTE, BYTE); /* Change attriburte of the file/dir */
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FRESULT f_utime (const TCHAR*, const FILINFO*); /* Change timestamp of the file/dir */
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FRESULT f_rename (const TCHAR*, const TCHAR*); /* Rename/Move a file or directory */
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#endif
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#if _USE_FORWARD
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FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
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FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */
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FRESULT f_chdir (const XCHAR*); /* Change current directory */
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#endif
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#if _USE_MKFS
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FRESULT f_mkfs (BYTE, BYTE, UINT); /* Create a file system on the drive */
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#endif
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#if _FS_RPATH
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FRESULT f_chdir (const TCHAR*); /* Change current directory */
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FRESULT f_chdrive (BYTE); /* Change current drive */
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#endif
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#if _USE_STRFUNC
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int f_putc (int, FIL*); /* Put a character to the file */
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int f_puts (const char*, FIL*); /* Put a string to the file */
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int f_printf (FIL*, const char*, ...); /* Put a formatted string to the file */
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char* f_gets (char*, int, FIL*); /* Get a string from the file */
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int f_putc (TCHAR, FIL*); /* Put a character to the file */
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int f_puts (const TCHAR*, FIL*); /* Put a string to the file */
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int f_printf (FIL*, const TCHAR*, ...); /* Put a formatted string to the file */
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TCHAR* f_gets (TCHAR*, int, FIL*); /* Get a string from the file */
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#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
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#define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
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#ifndef EOF
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#define EOF -1
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#define EOF (-1)
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#endif
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#endif
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/*--------------------------------------------------------------*/
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/* User defined functions */
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/* Additional user defined functions */
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/* Real time clock */
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/* RTC function */
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#if !_FS_READONLY
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DWORD get_fattime (void); /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
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/* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
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DWORD get_fattime (void);
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#endif
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/* Unicode - OEM code conversion */
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#if _USE_LFN
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WCHAR ff_convert (WCHAR, UINT);
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WCHAR ff_wtoupper (WCHAR);
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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, UINT); /* OEM-Unicode bidirectional conversion */
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WCHAR ff_wtoupper (WCHAR); /* Unicode upper-case conversion */
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#if _USE_LFN == 3 /* Memory functions */
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void* ff_memalloc (UINT); /* Allocate memory block */
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void ff_memfree (void*); /* 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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BOOL ff_cre_syncobj(BYTE, _SYNC_t*);
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BOOL ff_del_syncobj(_SYNC_t);
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BOOL ff_req_grant(_SYNC_t);
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void ff_rel_grant(_SYNC_t);
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int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */
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int ff_del_syncobj (_SYNC_t); /* Delete a sync object */
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int ff_req_grant (_SYNC_t); /* Lock sync object */
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void ff_rel_grant (_SYNC_t); /* Unlock sync object */
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#endif
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/*--------------------------------------------------------------*/
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/* Flags and offset address */
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@ -484,7 +493,9 @@ void ff_rel_grant(_SYNC_t);
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#define FA_READ 0x01
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#define FA_OPEN_EXISTING 0x00
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#if _FS_READONLY == 0
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#define FA__ERROR 0x80
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#if !_FS_READONLY
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#define FA_WRITE 0x02
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#define FA_CREATE_NEW 0x04
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#define FA_CREATE_ALWAYS 0x08
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@ -492,7 +503,6 @@ void ff_rel_grant(_SYNC_t);
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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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#define FA__ERROR 0x80
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/* FAT sub type (FATFS.fs_type) */
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@ -514,8 +524,12 @@ void ff_rel_grant(_SYNC_t);
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#define AM_MASK 0x3F /* Mask of defined bits */
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/* FatFs refers the members in the FAT structures with byte offset instead
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/ of structure member because there are incompatibility of the packing option
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/* Fast seek function */
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#define CREATE_LINKMAP 0xFFFFFFFF
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/* FatFs refers the members in the FAT structures with byte offset instead of
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/ structure member because there are incompatibility of the packing option
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/ between various compilers. */
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#define BS_jmpBoot 0
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@ -592,5 +606,8 @@ void ff_rel_grant(_SYNC_t);
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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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Dean Camera
15 years ago