-/*---------------------------------------------------------------------------/
-/ 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 trems.
-/
-/ Copyright (C) 2010, ChaN, all right reserved.
-/
-/ * The Petit FatFs module is a free software and there is NO WARRANTY.
-/ * 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"
-
-/*---------------------------------------------------------------------------/
-/ Petit FatFs Configuration Options
-/
-/ CAUTION! Do not forget to make clean the project after any changes to
-/ the configuration options.
-/
-/----------------------------------------------------------------------------*/
-#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.
-/
-/ 0: Byte-by-byte access. Always compatible with all platforms.
-/ 1: Word access. Do not choose this unless following condition is met.
-/
-/ When the byte order on the memory is big-endian or address miss-aligned
-/ word access results incorrect behavior, the _WORD_ACCESS must be set to 0.
-/ If it is not the case, the value can also be set to 1 to improve the
-/ performance and code efficiency. */
-
-
-/* End of configuration options. Do not change followings without care. */
-/*--------------------------------------------------------------------------*/
-
-
-
-#if _FS_FAT32
-#define CLUST DWORD
-#else
-#define CLUST WORD
-#endif
-
-
-/* File system object structure */
-
-typedef struct {
- BYTE fs_type; /* FAT sub type */
- BYTE flag; /* File status flags */
- BYTE csize; /* Number of sectors per cluster */
- BYTE pad1;
- WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */
- 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 */
- DWORD fptr; /* File R/W pointer */
- DWORD fsize; /* File size */
- CLUST org_clust; /* File start cluster */
- CLUST curr_clust; /* File current cluster */
- DWORD dsect; /* File current data sector */
-} FATFS;
-
-
-
-/* Directory object structure */
-
-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) */
- CLUST clust; /* Current cluster */
- DWORD sect; /* Current sector */
-} DIR;
-
-
-
-/* File status structure */
-
-typedef struct {
- DWORD fsize; /* File size */
- WORD fdate; /* Last modified date */
- WORD ftime; /* Last modified time */
- BYTE fattrib; /* Attribute */
- char fname[13]; /* File name */
-} FILINFO;
-
-
-
-/* File function return code (FRESULT) */
-
-typedef enum {
- FR_OK = 0, /* 0 */
- FR_DISK_ERR, /* 1 */
- FR_NOT_READY, /* 2 */
- FR_NO_FILE, /* 3 */
- FR_NO_PATH, /* 4 */
- 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 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 */
-
-
-
-/*--------------------------------------------------------------*/
-/* Flags and offset address */
-
-/* File status flag (FATFS.flag) */
-
-#define FA_OPENED 0x01
-#define FA_WPRT 0x02
-#define FA__WIP 0x40
-
-
-/* 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 */
-#define AM_MASK 0x3F /* Mask of defined bits */
-
-
-/*--------------------------------*/
-/* Multi-byte word access macros */
-
-#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
-#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)
-#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)
-#endif
-
-
-#endif /* _FATFS */
-
projects / pub / lufa.git / blobdiff