/*---------------------------------------------------------------------------/
-/ Petit FatFs - FAT file system module include file R0.01a (C)ChaN, 2010
+/ Petit FatFs - FAT file system module include file R0.02a (C)ChaN, 2010
/----------------------------------------------------------------------------/
/ Petit FatFs module is an open source software to implement FAT file system to
/ small embedded systems. This is a free software and is opened for education,
-/ research and commercial developments under license policy of following terms.
+/ research and commercial developments under license policy of following trems.
/
/ Copyright (C) 2010, ChaN, all right reserved.
/
/ * No restriction on use. You can use, modify and redistribute it for
/ personal, non-profit or commercial use UNDER YOUR RESPONSIBILITY.
/ * Redistributions of source code must retain the above copyright notice.
+/
/----------------------------------------------------------------------------*/
#include "integer.h"
#ifndef _FATFS
#define _FATFS
+#define _USE_READ 1 /* 1:Enable pf_read() */
+
+#define _USE_DIR 0 /* 1:Enable pf_opendir() and pf_readdir() */
+
+#define _USE_LSEEK 0 /* 1:Enable pf_lseek() */
+
+#define _USE_WRITE 0 /* 1:Enable pf_write() */
+
+#define _FS_FAT12 1 /* 1:Enable FAT12 support */
+#define _FS_FAT32 0 /* 1:Enable FAT32 support */
+
+
+#define _CODE_PAGE 1
+/* Defines which code page is used for path name. Supported code pages are:
+/ 932, 936, 949, 950, 437, 720, 737, 775, 850, 852, 855, 857, 858, 862, 866,
+/ 874, 1250, 1251, 1252, 1253, 1254, 1255, 1257, 1258 and 1 (ASCII only).
+/ SBCS code pages except for 1 requiers a case conversion table. This
+/ might occupy 128 bytes on the RAM on some platforms, e.g. avr-gcc. */
+
+
#define _WORD_ACCESS 0
/* The _WORD_ACCESS option defines which access method is used to the word
/ data in the FAT structure.
/ performance and code efficiency. */
-#define _USE_DIR 0
-/* To enable pf_opendir and pf_readdir function, set _USE_DIR to 1. */
-
-
-#define _USE_LSEEK 0
-/* To enable pf_lseek function, set _USE_LSEEK to 1. */
-
-
-#define _FS_FAT32 1
-/* To enable FAT32 support, set _FS_FAT32 to 1. */
-
-
/* End of configuration options. Do not change followings without care. */
/*--------------------------------------------------------------------------*/
+
#if _FS_FAT32
#define CLUST DWORD
#else
/* File system object structure */
-typedef struct _FATFS_ {
+typedef struct {
BYTE fs_type; /* FAT sub type */
- BYTE csize; /* Number of sectors per cluster */
BYTE flag; /* File status flags */
- BYTE csect; /* File sector address in the cluster */
+ BYTE csize; /* Number of sectors per cluster */
+ BYTE pad1;
WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */
- BYTE* buf; /* Pointer to the disk access buffer */
- CLUST max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */
+ CLUST n_fatent; /* Number of FAT entries (= number of clusters + 2) */
DWORD fatbase; /* FAT start sector */
DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */
DWORD database; /* Data start sector */
/* Directory object structure */
-typedef struct _DIR_ {
+typedef struct {
WORD index; /* Current read/write index number */
BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
CLUST sclust; /* Table start cluster (0:Static table) */
/* File status structure */
-typedef struct _FILINFO_ {
+typedef struct {
DWORD fsize; /* File size */
WORD fdate; /* Last modified date */
WORD ftime; /* Last modified time */
FR_NOT_READY, /* 2 */
FR_NO_FILE, /* 3 */
FR_NO_PATH, /* 4 */
- FR_INVALID_NAME, /* 5 */
- FR_STREAM_ERR, /* 6 */
- FR_INVALID_OBJECT, /* 7 */
- FR_NOT_ENABLED, /* 8 */
- FR_NO_FILESYSTEM /* 9 */
+ FR_NOT_OPENED, /* 5 */
+ FR_NOT_ENABLED, /* 6 */
+ FR_NO_FILESYSTEM /* 7 */
} FRESULT;
/*--------------------------------------------------------------*/
/* Petit FatFs module application interface */
-FRESULT pf_mount (FATFS*); /* Mount/Unmount a logical drive */
-FRESULT pf_open (const char*); /* Open a file */
-FRESULT pf_read (void*, WORD, WORD*); /* Read data from a file */
-FRESULT pf_lseek (DWORD); /* Move file pointer of a file object */
-FRESULT pf_opendir (DIR*, const char*); /* Open an existing directory */
-FRESULT pf_readdir (DIR*, FILINFO*); /* Read a directory item */
+FRESULT pf_mount (FATFS*); /* Mount/Unmount a logical drive */
+FRESULT pf_open (const char*); /* Open a file */
+FRESULT pf_read (void*, WORD, WORD*); /* Read data from the open file */
+FRESULT pf_write (const void*, WORD, WORD*); /* Write data to the open file */
+FRESULT pf_lseek (DWORD); /* Move file pointer of the open file */
+FRESULT pf_opendir (DIR*, const char*); /* Open a directory */
+FRESULT pf_readdir (DIR*, FILINFO*); /* Read a directory item from the open directory */
/* File status flag (FATFS.flag) */
-#define FA_READ 0x01
-#define FA_STREAM 0x40
-#define FA__ERROR 0x80
+#define FA_OPENED 0x01
+#define FA_WPRT 0x02
+#define FA__WIP 0x40
/* FAT sub type (FATFS.fs_type) */
#define AM_MASK 0x3F /* Mask of defined bits */
-/* FatFs refers the members in the FAT structures with byte offset instead
-/ of structure member because there are incompatibility of the packing option
-/ between various compilers. */
-
-#define BS_jmpBoot 0
-#define BS_OEMName 3
-#define BPB_BytsPerSec 11
-#define BPB_SecPerClus 13
-#define BPB_RsvdSecCnt 14
-#define BPB_NumFATs 16
-#define BPB_RootEntCnt 17
-#define BPB_TotSec16 19
-#define BPB_Media 21
-#define BPB_FATSz16 22
-#define BPB_SecPerTrk 24
-#define BPB_NumHeads 26
-#define BPB_HiddSec 28
-#define BPB_TotSec32 32
-#define BS_55AA 510
-
-#define BS_DrvNum 36
-#define BS_BootSig 38
-#define BS_VolID 39
-#define BS_VolLab 43
-#define BS_FilSysType 54
-
-#define BPB_FATSz32 36
-#define BPB_ExtFlags 40
-#define BPB_FSVer 42
-#define BPB_RootClus 44
-#define BPB_FSInfo 48
-#define BPB_BkBootSec 50
-#define BS_DrvNum32 64
-#define BS_BootSig32 66
-#define BS_VolID32 67
-#define BS_VolLab32 71
-#define BS_FilSysType32 82
-
-#define MBR_Table 446
-
-#define DIR_Name 0
-#define DIR_Attr 11
-#define DIR_NTres 12
-#define DIR_CrtTime 14
-#define DIR_CrtDate 16
-#define DIR_FstClusHI 20
-#define DIR_WrtTime 22
-#define DIR_WrtDate 24
-#define DIR_FstClusLO 26
-#define DIR_FileSize 28
-
-
-
/*--------------------------------*/
/* Multi-byte word access macros */
#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
#else /* Use byte-by-byte access to the FAT structure */
-#define LD_WORD(ptr) (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
-#define LD_DWORD(ptr) (DWORD)(((DWORD)*(BYTE*)((ptr)+3)<<24)|((DWORD)*(BYTE*)((ptr)+2)<<16)|((WORD)*(BYTE*)((ptr)+1)<<8)|*(BYTE*)(ptr))
-#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8)
-#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)
+#define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
+#define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
+#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
+#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)
#endif
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