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/*---------------------------------------------------------------------------/
/ Petit FatFs - FAT file system module include file R0.03a
/----------------------------------------------------------------------------/
/ 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) 2019, 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.
/
/----------------------------------------------------------------------------*/
#ifndef PF_DEFINED
#define PF_DEFINED 8088 /* Revision ID */
#ifdef __cplusplus
extern "C" {
#endif
#include "pffconf.h"
#if PF_DEFINED != PFCONF_DEF
#error Wrong configuration file (pffconf.h).
#endif
/* Integer types used for FatFs API */
#if defined(_WIN32) /* Main development platform */
#include <windows.h>
#elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__cplusplus) /* C99 or later */
#include <stdint.h>
typedef unsigned int UINT; /* int must be 16-bit or 32-bit */
typedef unsigned char BYTE; /* char must be 8-bit */
typedef uint16_t WORD; /* 16-bit unsigned integer */
typedef uint16_t WCHAR; /* 16-bit unsigned integer */
typedef uint32_t DWORD; /* 32-bit unsigned integer */
#else /* Earlier than C99 */
typedef unsigned int UINT; /* int must be 16-bit or 32-bit */
typedef unsigned char BYTE; /* char must be 8-bit */
typedef unsigned short WORD; /* 16-bit unsigned integer */
typedef unsigned short WCHAR; /* 16-bit unsigned integer */
typedef unsigned long DWORD; /* 32-bit unsigned integer */
#endif
#define PF_INTDEF 1
#if PF_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_NOT_OPENED, /* 4 */
FR_NOT_ENABLED, /* 5 */
FR_NO_FILESYSTEM /* 6 */
} FRESULT;
/*--------------------------------------------------------------*/
/* Petit FatFs module application interface */
FRESULT pf_mount (FATFS* fs); /* Mount/Unmount a logical drive */
FRESULT pf_open (const char* path); /* Open a file */
FRESULT pf_read (void* buff, UINT btr, UINT* br); /* Read data from the open file */
FRESULT pf_write (const void* buff, UINT btw, UINT* bw); /* Write data to the open file */
FRESULT pf_lseek (DWORD ofs); /* Move file pointer of the open file */
FRESULT pf_opendir (DIR* dj, const char* path); /* Open a directory */
FRESULT pf_readdir (DIR* dj, FILINFO* fno); /* 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 */
#ifdef __cplusplus
}
#endif
#endif /* _PFATFS */