diff options
Diffstat (limited to 'external_libs/fat/fatfs/src/tff.h')
| -rw-r--r-- | external_libs/fat/fatfs/src/tff.h | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/external_libs/fat/fatfs/src/tff.h b/external_libs/fat/fatfs/src/tff.h new file mode 100644 index 0000000..32ebae5 --- /dev/null +++ b/external_libs/fat/fatfs/src/tff.h @@ -0,0 +1,268 @@ +/*--------------------------------------------------------------------------/
+/ Tiny-FatFs - FAT file system module include file R0.06 (C)ChaN, 2008
+/---------------------------------------------------------------------------/
+/ FatFs module is an experimenal project to implement FAT file system to
+/ cheap microcontrollers. This is a free software and is opened for education,
+/ research and development under license policy of following trems.
+/
+/ Copyright (C) 2008, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is no warranty.
+/ * You can use, modify and/or redistribute it for personal, non-profit or
+/ commercial use without any restriction under your responsibility.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/---------------------------------------------------------------------------*/
+
+#include <fatfs_config.h>
+
+#if _FATFS_TINY == 1
+#ifndef _FATFS
+
+#include "integer.h"
+
+/* Type definition for cluster number */
+#if _FAT32
+typedef DWORD CLUST;
+#else
+typedef WORD CLUST;
+#undef _USE_FSINFO
+#define _USE_FSINFO 0
+#endif
+
+
+/* File system object structure */
+typedef struct _FATFS {
+ WORD id; /* File system mount ID */
+ WORD n_rootdir; /* Number of root directory entries */
+ DWORD winsect; /* Current sector appearing in the win[] */
+ DWORD fatbase; /* FAT start sector */
+ DWORD dirbase; /* Root directory start sector */
+ DWORD database; /* Data start sector */
+ CLUST sects_fat; /* Sectors per fat */
+ CLUST max_clust; /* Maximum cluster# + 1 */
+#if !_FS_READONLY
+ CLUST last_clust; /* Last allocated cluster */
+ CLUST free_clust; /* Number of free clusters */
+#if _USE_FSINFO
+ DWORD fsi_sector; /* fsinfo sector */
+ BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
+ BYTE pad1;
+#endif
+#endif
+ BYTE fs_type; /* FAT sub type */
+ BYTE csize; /* Number of sectors per cluster */
+ BYTE n_fats; /* Number of FAT copies */
+ BYTE winflag; /* win[] dirty flag (1:must be written back) */
+ BYTE win[512]; /* Disk access window for Directory/FAT/File */
+} FATFS;
+
+
+/* Directory object structure */
+typedef struct _DIR {
+ WORD id; /* Owner file system mount ID */
+ WORD index; /* Current index */
+ FATFS* fs; /* Pointer to the owner file system object */
+ CLUST sclust; /* Start cluster */
+ CLUST clust; /* Current cluster */
+ DWORD sect; /* Current sector */
+} DIR;
+
+
+/* File object structure */
+typedef struct _FIL {
+ WORD id; /* Owner file system mount ID */
+ BYTE flag; /* File status flags */
+ BYTE csect; /* Sector address in the cluster */
+ FATFS* fs; /* Pointer to owner file system */
+ DWORD fptr; /* File R/W pointer */
+ DWORD fsize; /* File size */
+ CLUST org_clust; /* File start cluster */
+ CLUST curr_clust; /* Current cluster */
+ DWORD curr_sect; /* Current sector */
+#if !_FS_READONLY
+ DWORD dir_sect; /* Sector containing the directory entry */
+ BYTE* dir_ptr; /* Ponter to the directory entry in the window */
+#endif
+} FIL;
+
+
+/* File status structure */
+typedef struct _FILINFO {
+ DWORD fsize; /* Size */
+ WORD fdate; /* Date */
+ WORD ftime; /* Time */
+ BYTE fattrib; /* Attribute */
+ char fname[8+1+3+1]; /* Name (8.3 format) */
+} FILINFO;
+
+
+/* File function return code (FRESULT) */
+
+typedef enum {
+ FR_OK = 0, /* 0 */
+ FR_NOT_READY, /* 1 */
+ FR_NO_FILE, /* 2 */
+ FR_NO_PATH, /* 3 */
+ FR_INVALID_NAME, /* 4 */
+ FR_INVALID_DRIVE, /* 5 */
+ FR_DENIED, /* 6 */
+ FR_EXIST, /* 7 */
+ FR_RW_ERROR, /* 8 */
+ FR_WRITE_PROTECTED, /* 9 */
+ FR_NOT_ENABLED, /* 10 */
+ FR_NO_FILESYSTEM, /* 11 */
+ FR_INVALID_OBJECT, /* 12 */
+ FR_MKFS_ABORTED /* 13 (not used) */
+} FRESULT;
+
+
+
+/*-----------------------------------------------------*/
+/* Tiny-FatFs module application interface */
+
+FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
+FRESULT f_open (FIL*, const char*, BYTE); /* Open or create a file */
+FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */
+FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
+FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */
+FRESULT f_close (FIL*); /* Close an open file object */
+FRESULT f_opendir (DIR*, const char*); /* Open an existing directory */
+FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */
+FRESULT f_stat (const char*, FILINFO*); /* Get file status */
+FRESULT f_getfree (const char*, DWORD*, FATFS**); /* Get number of free clusters on the drive */
+FRESULT f_truncate (FIL*); /* Truncate file */
+FRESULT f_sync (FIL*); /* Flush cached data of a writing file */
+FRESULT f_unlink (const char*); /* Delete an existing file or directory */
+FRESULT f_mkdir (const char*); /* Create a new directory */
+FRESULT f_chmod (const char*, BYTE, BYTE); /* Change file/dir attriburte */
+FRESULT f_utime (const char*, const FILINFO*); /* Change file/dir timestamp */
+FRESULT f_rename (const char*, const char*); /* Rename/Move a file or directory */
+FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
+#if _USE_STRFUNC
+#define feof(fp) ((fp)->fptr == (fp)->fsize)
+#define EOF -1
+int fputc (int, FIL*); /* Put a character to the file */
+int fputs (const char*, FIL*); /* Put a string to the file */
+int fprintf (FIL*, const char*, ...); /* Put a formatted string to the file */
+char* fgets (char*, int, FIL*); /* Get a string from the file */
+#endif
+
+
+/* User defined function to give a current time to fatfs module */
+
+DWORD get_fattime (void); /* 31-25: Year(0-127 +1980), 24-21: Month(1-12), 20-16: Day(1-31) */
+ /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
+
+
+
+/* File access control and file status flags (FIL.flag) */
+
+#define FA_READ 0x01
+#define FA_OPEN_EXISTING 0x00
+#if !_FS_READONLY
+#define FA_WRITE 0x02
+#define FA_CREATE_NEW 0x04
+#define FA_CREATE_ALWAYS 0x08
+#define FA_OPEN_ALWAYS 0x10
+#define FA__WRITTEN 0x20
+#endif
+#define FA__ERROR 0x80
+
+
+/* FAT sub type (FATFS.fs_type) */
+
+#define FS_FAT12 1
+#define FS_FAT16 2
+#define FS_FAT32 3
+
+
+/* File attribute bits for directory entry */
+
+#define AM_RDO 0x01 /* Read only */
+#define AM_HID 0x02 /* Hidden */
+#define AM_SYS 0x04 /* System */
+#define AM_VOL 0x08 /* Volume label */
+#define AM_LFN 0x0F /* LFN entry */
+#define AM_DIR 0x10 /* Directory */
+#define AM_ARC 0x20 /* Archive */
+
+
+
+/* Offset of FAT structure members */
+
+#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 FSI_LeadSig 0
+#define FSI_StrucSig 484
+#define FSI_Free_Count 488
+#define FSI_Nxt_Free 492
+
+#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 */
+
+#if _MCU_ENDIAN == 1 /* Use word access */
+#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
+#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
+#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
+#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
+#elif _MCU_ENDIAN == 2 /* Use byte-by-byte access */
+#define LD_WORD(ptr) (WORD)(((WORD)*(volatile BYTE*)((ptr)+1)<<8)|(WORD)*(volatile BYTE*)(ptr))
+#define LD_DWORD(ptr) (DWORD)(((DWORD)*(volatile BYTE*)((ptr)+3)<<24)|((DWORD)*(volatile BYTE*)((ptr)+2)<<16)|((WORD)*(volatile BYTE*)((ptr)+1)<<8)|*(volatile BYTE*)(ptr))
+#define ST_WORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8)
+#define ST_DWORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(volatile BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(volatile BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24)
+#else
+#error Do not forget to set _MCU_ENDIAN properly!
+#endif
+
+
+
+#define _FATFS
+#endif /* _FATFS */
+#endif /* _FATFS_TINY */
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