mirror of
https://github.com/davidgiven/fluxengine.git
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455 lines
17 KiB
C
455 lines
17 KiB
C
/*----------------------------------------------------------------------------/
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/ FatFs - Generic FAT Filesystem module R0.14b /
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/-----------------------------------------------------------------------------/
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/
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/ Copyright (C) 2021, ChaN, all right reserved.
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/
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/ FatFs module is an open source software. Redistribution and use of FatFs in
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/ source and binary forms, with or without modification, are permitted provided
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/ that the following condition is met:
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/ 1. Redistributions of source code must retain the above copyright notice,
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/ this condition and the following disclaimer.
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/
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/ This software is provided by the copyright holder and contributors "AS IS"
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/ and any warranties related to this software are DISCLAIMED.
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/ The copyright owner or contributors be NOT LIABLE for any damages caused
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/ by use of this software.
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/
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/----------------------------------------------------------------------------*/
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#ifndef FF_DEFINED
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#define FF_DEFINED 86631 /* Revision ID */
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "ffconf.h" /* FatFs configuration options */
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#if FF_DEFINED != FFCONF_DEF
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#error Wrong configuration file (ffconf.h).
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#endif
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/* Integer types used for FatFs API */
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#if defined(_WIN32) /* Windows VC++ (for development only) */
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#define FF_INTDEF 2
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#include <windows.h>
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typedef unsigned __int64 QWORD;
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#include <float.h>
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#define isnan(v) _isnan(v)
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#define isinf(v) (!_finite(v))
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#elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
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defined(__cplusplus) /* C99 or later */
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#define FF_INTDEF 2
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#include <stdint.h>
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typedef unsigned int UINT; /* int must be 16-bit or 32-bit */
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typedef unsigned char BYTE; /* char must be 8-bit */
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typedef uint16_t WORD; /* 16-bit unsigned integer */
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typedef uint32_t DWORD; /* 32-bit unsigned integer */
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typedef uint64_t QWORD; /* 64-bit unsigned integer */
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typedef WORD WCHAR; /* UTF-16 character type */
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#else /* Earlier than C99 */
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#define FF_INTDEF 1
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typedef unsigned int UINT; /* int must be 16-bit or 32-bit */
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typedef unsigned char BYTE; /* char must be 8-bit */
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typedef unsigned short WORD; /* 16-bit unsigned integer */
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typedef unsigned long DWORD; /* 32-bit unsigned integer */
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typedef WORD WCHAR; /* UTF-16 character type */
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#endif
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/* Type of file size and LBA variables */
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#if FF_FS_EXFAT
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#if FF_INTDEF != 2
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#error exFAT feature wants C99 or later
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#endif
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typedef QWORD FSIZE_t;
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#if FF_LBA64
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typedef QWORD LBA_t;
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#else
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typedef DWORD LBA_t;
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#endif
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#else
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#if FF_LBA64
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#error exFAT needs to be enabled when enable 64-bit LBA
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#endif
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typedef DWORD FSIZE_t;
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typedef DWORD LBA_t;
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#endif
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/* Type of path name strings on FatFs API (TCHAR) */
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#if FF_USE_LFN && FF_LFN_UNICODE == 1 /* Unicode in UTF-16 encoding */
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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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#elif FF_USE_LFN && FF_LFN_UNICODE == 2 /* Unicode in UTF-8 encoding */
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typedef char TCHAR;
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#define _T(x) u8##x
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#define _TEXT(x) u8##x
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#elif FF_USE_LFN && FF_LFN_UNICODE == 3 /* Unicode in UTF-32 encoding */
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typedef DWORD TCHAR;
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#define _T(x) U##x
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#define _TEXT(x) U##x
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#elif FF_USE_LFN && (FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3)
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#error Wrong FF_LFN_UNICODE setting
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#else /* ANSI/OEM code in SBCS/DBCS */
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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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/* Definitions of volume management */
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#if FF_MULTI_PARTITION /* Multiple partition configuration */
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typedef struct
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{
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BYTE pd; /* Physical drive number */
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BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
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} PARTITION;
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extern PARTITION VolToPart[]; /* Volume - Partition mapping table */
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#endif
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#if FF_STR_VOLUME_ID
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#ifndef FF_VOLUME_STRS
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extern const char* VolumeStr[FF_VOLUMES]; /* User defied volume ID */
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#endif
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#endif
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/* Filesystem object structure (FATFS) */
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typedef struct
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{
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BYTE fs_type; /* Filesystem type (0:not mounted) */
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BYTE pdrv; /* Associated physical drive */
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BYTE n_fats; /* Number of FATs (1 or 2) */
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BYTE wflag; /* win[] flag (b0:dirty) */
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BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
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WORD id; /* Volume mount ID */
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WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
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WORD csize; /* Cluster size [sectors] */
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#if FF_MAX_SS != FF_MIN_SS
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WORD ssize; /* Sector size (512, 1024, 2048 or 4096) */
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#endif
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#if FF_USE_LFN
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WCHAR* lfnbuf; /* LFN working buffer */
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#endif
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#if FF_FS_EXFAT
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BYTE* dirbuf; /* Directory entry block scratchpad buffer for exFAT */
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#endif
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#if FF_FS_REENTRANT
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FF_SYNC_t sobj; /* Identifier of sync object */
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#endif
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#if !FF_FS_READONLY
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DWORD last_clst; /* Last allocated cluster */
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DWORD free_clst; /* Number of free clusters */
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#endif
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#if FF_FS_RPATH
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DWORD cdir; /* Current directory start cluster (0:root) */
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#if FF_FS_EXFAT
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DWORD cdc_scl; /* Containing directory start cluster (invalid when cdir
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is 0) */
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DWORD cdc_size; /* b31-b8:Size of containing directory, b7-b0: Chain
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status */
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DWORD cdc_ofs; /* Offset in the containing directory (invalid when cdir
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is 0) */
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#endif
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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; /* Size of an FAT [sectors] */
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LBA_t volbase; /* Volume base sector */
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LBA_t fatbase; /* FAT base sector */
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LBA_t dirbase; /* Root directory base sector/cluster */
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LBA_t database; /* Data base sector */
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#if FF_FS_EXFAT
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LBA_t bitbase; /* Allocation bitmap base sector */
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#endif
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LBA_t winsect; /* Current sector appearing in the win[] */
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BYTE win[FF_MAX_SS]; /* Disk access window for Directory, FAT (and file
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data at tiny cfg) */
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} FATFS;
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/* Object ID and allocation information (FFOBJID) */
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typedef struct
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{
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FATFS* fs; /* Pointer to the hosting volume of this object */
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WORD id; /* Hosting volume mount ID */
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BYTE attr; /* Object attribute */
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BYTE stat; /* Object chain status (b1-0: =0:not contiguous,
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=2:contiguous, =3:fragmented in this session,
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b2:sub-directory stretched) */
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DWORD sclust; /* Object data start cluster (0:no cluster or root
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directory) */
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FSIZE_t objsize; /* Object size (valid when sclust != 0) */
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#if FF_FS_EXFAT
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DWORD n_cont; /* Size of first fragment - 1 (valid when stat == 3) */
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DWORD n_frag; /* Size of last fragment needs to be written to FAT (valid
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when not zero) */
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DWORD c_scl; /* Containing directory start cluster (valid when sclust !=
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0) */
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DWORD c_size; /* b31-b8:Size of containing directory, b7-b0: Chain
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status (valid when c_scl != 0) */
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DWORD c_ofs; /* Offset in the containing directory (valid when file
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object and sclust != 0) */
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#endif
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#if FF_FS_LOCK
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UINT lockid; /* File lock ID origin from 1 (index of file semaphore
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table Files[]) */
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#endif
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} FFOBJID;
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/* File object structure (FIL) */
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typedef struct
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{
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FFOBJID obj; /* Object identifier (must be the 1st member to detect
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invalid object pointer) */
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BYTE flag; /* File status flags */
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BYTE err; /* Abort flag (error code) */
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FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */
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DWORD clust; /* Current cluster of fpter (invalid when fptr is 0) */
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LBA_t sect; /* Sector number appearing in buf[] (0:invalid) */
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#if !FF_FS_READONLY
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LBA_t dir_sect; /* Sector number containing the directory entry (not
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used at exFAT) */
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BYTE* dir_ptr; /* Pointer to the directory entry in the win[] (not used
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at exFAT) */
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#endif
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#if FF_USE_FASTSEEK
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DWORD* cltbl; /* Pointer to the cluster link map table (nulled on open,
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set by application) */
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#endif
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#if !FF_FS_TINY
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BYTE buf[FF_MAX_SS]; /* File private data read/write window */
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#endif
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} FIL;
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/* Directory object structure (DIR) */
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typedef struct
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{
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FFOBJID obj; /* Object identifier */
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DWORD dptr; /* Current read/write offset */
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DWORD clust; /* Current cluster */
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LBA_t sect; /* Current sector (0:Read operation has terminated) */
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BYTE* dir; /* Pointer to the directory item in the win[] */
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BYTE fn[12]; /* SFN (in/out) {body[8],ext[3],status[1]} */
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#if FF_USE_LFN
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DWORD blk_ofs; /* Offset of current entry block being processed
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(0xFFFFFFFF:Invalid) */
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#endif
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#if FF_USE_FIND
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const TCHAR* pat; /* Pointer to the name matching pattern */
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#endif
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} DIR;
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/* File information structure (FILINFO) */
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typedef struct
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{
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FSIZE_t fsize; /* File size */
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WORD fdate; /* Modified date */
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WORD ftime; /* Modified time */
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BYTE fattrib; /* File attribute */
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#if FF_USE_LFN
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TCHAR altname[FF_SFN_BUF + 1]; /* Altenative file name */
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TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */
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#else
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TCHAR fname[12 + 1]; /* File name */
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#endif
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} FILINFO;
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/* Format parameter structure (MKFS_PARM) */
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typedef struct
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{
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BYTE fmt; /* Format option (FM_FAT, FM_FAT32, FM_EXFAT and FM_SFD) */
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BYTE n_fat; /* Number of FATs */
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UINT align; /* Data area alignment (sector) */
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UINT n_root; /* Number of root directory entries */
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DWORD au_size; /* Cluster size (byte) */
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} MKFS_PARM;
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/* File function return code (FRESULT) */
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typedef enum
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{
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FR_OK = 0, /* (0) Succeeded */
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FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O
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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) Access denied due to prohibited access or directory
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full */
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FR_EXIST, /* (8) Access 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 */
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FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any problem */
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FR_TIMEOUT, /* (15) Could not get a grant to access the volume within
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defined period */
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FR_LOCKED, /* (16) The operation is rejected according to the file
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sharing 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 > FF_FS_LOCK */
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FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
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} FRESULT;
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/*--------------------------------------------------------------*/
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/* FatFs module application interface */
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FRESULT f_open(
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FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
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FRESULT f_close(FIL* fp); /* Close an open file object */
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FRESULT f_read(
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FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */
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FRESULT f_write(FIL* fp,
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const void* buff,
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UINT btw,
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UINT* bw); /* Write data to the file */
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FRESULT f_lseek(
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FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */
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FRESULT f_truncate(FIL* fp); /* Truncate the file */
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FRESULT f_sync(FIL* fp); /* Flush cached data of the writing file */
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FRESULT f_opendir(DIR* dp, const TCHAR* path); /* Open a directory */
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FRESULT f_closedir(DIR* dp); /* Close an open directory */
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FRESULT f_readdir(DIR* dp, FILINFO* fno); /* Read a directory item */
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FRESULT f_findfirst(DIR* dp,
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FILINFO* fno,
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const TCHAR* path,
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const TCHAR* pattern); /* Find first file */
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FRESULT f_findnext(DIR* dp, FILINFO* fno); /* Find next file */
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FRESULT f_mkdir(const TCHAR* path); /* Create a sub directory */
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FRESULT f_unlink(
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const TCHAR* path); /* Delete an existing file or directory */
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FRESULT f_rename(const TCHAR* path_old,
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const TCHAR* path_new); /* Rename/Move a file or directory */
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FRESULT f_stat(const TCHAR* path, FILINFO* fno); /* Get file status */
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FRESULT f_chmod(const TCHAR* path,
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BYTE attr,
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BYTE mask); /* Change attribute of a file/dir */
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FRESULT f_utime(const TCHAR* path,
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const FILINFO* fno); /* Change timestamp of a file/dir */
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FRESULT f_chdir(const TCHAR* path); /* Change current directory */
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FRESULT f_chdrive(const TCHAR* path); /* Change current drive */
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FRESULT f_getcwd(TCHAR* buff, UINT len); /* Get current directory */
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FRESULT f_getfree(const TCHAR* path,
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DWORD* nclst,
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FATFS** fatfs); /* Get number of free clusters on the drive */
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FRESULT f_getlabel(
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const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
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FRESULT f_setlabel(const TCHAR* label); /* Set volume label */
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FRESULT f_forward(FIL* fp,
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UINT (*func)(const BYTE*, UINT),
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UINT btf,
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UINT* bf); /* Forward data to the stream */
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FRESULT f_expand(FIL* fp,
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FSIZE_t fsz,
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BYTE opt); /* Allocate a contiguous block to the file */
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FRESULT f_mount(FATFS* fs,
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const TCHAR* path,
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BYTE opt); /* Mount/Unmount a logical drive */
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FRESULT f_mkfs(const TCHAR* path,
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const MKFS_PARM* opt,
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void* work,
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UINT len); /* Create a FAT volume */
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FRESULT f_fdisk(BYTE pdrv,
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const LBA_t ptbl[],
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void* work); /* Divide a physical drive into some partitions */
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FRESULT f_setcp(WORD cp); /* Set current code page */
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int f_putc(TCHAR c, FIL* fp); /* Put a character to the file */
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int f_puts(const TCHAR* str, FIL* cp); /* Put a string to the file */
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int f_printf(FIL* fp,
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const TCHAR* str,
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...); /* Put a formatted string to the file */
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TCHAR* f_gets(
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TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
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#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize))
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#define f_error(fp) ((fp)->err)
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#define f_tell(fp) ((fp)->fptr)
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#define f_size(fp) ((fp)->obj.objsize)
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#define f_rewind(fp) f_lseek((fp), 0)
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#define f_rewinddir(dp) f_readdir((dp), 0)
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#define f_rmdir(path) f_unlink(path)
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#define f_unmount(path) f_mount(0, path, 0)
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/*--------------------------------------------------------------*/
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/* Additional user defined functions */
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/* RTC function */
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#if !FF_FS_READONLY && !FF_FS_NORTC
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DWORD get_fattime(void);
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#endif
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/* LFN support functions */
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#if FF_USE_LFN >= 1 /* Code conversion (defined in unicode.c) */
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WCHAR ff_oem2uni(WCHAR oem, WORD cp); /* OEM code to Unicode conversion */
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WCHAR ff_uni2oem(DWORD uni, WORD cp); /* Unicode to OEM code conversion */
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DWORD ff_wtoupper(DWORD uni); /* Unicode upper-case conversion */
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#endif
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#if FF_USE_LFN == 3 /* Dynamic memory allocation */
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void* ff_memalloc(UINT msize); /* Allocate memory block */
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void ff_memfree(void* mblock); /* Free memory block */
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#endif
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/* Sync functions */
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#if FF_FS_REENTRANT
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int ff_cre_syncobj(BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */
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int ff_req_grant(FF_SYNC_t sobj); /* Lock sync object */
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void ff_rel_grant(FF_SYNC_t sobj); /* Unlock sync object */
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int ff_del_syncobj(FF_SYNC_t sobj); /* Delete a sync object */
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#endif
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/*--------------------------------------------------------------*/
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/* Flags and offset address */
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/* File access mode and open method flags (3rd argument of f_open) */
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#define FA_READ 0x01
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#define FA_WRITE 0x02
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#define FA_OPEN_EXISTING 0x00
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#define FA_CREATE_NEW 0x04
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#define FA_CREATE_ALWAYS 0x08
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#define FA_OPEN_ALWAYS 0x10
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#define FA_OPEN_APPEND 0x30
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/* Fast seek controls (2nd argument of f_lseek) */
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#define CREATE_LINKMAP ((FSIZE_t)0 - 1)
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/* Format options (2nd argument of f_mkfs) */
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#define FM_FAT 0x01
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#define FM_FAT32 0x02
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#define FM_EXFAT 0x04
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#define FM_ANY 0x07
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#define FM_SFD 0x08
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/* Filesystem type (FATFS.fs_type) */
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#define FS_FAT12 1
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#define FS_FAT16 2
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#define FS_FAT32 3
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#define FS_EXFAT 4
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/* File attribute bits for directory entry (FILINFO.fattrib) */
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#define AM_RDO 0x01 /* Read only */
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#define AM_HID 0x02 /* Hidden */
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#define AM_SYS 0x04 /* System */
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#define AM_DIR 0x10 /* Directory */
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#define AM_ARC 0x20 /* Archive */
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#ifdef __cplusplus
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}
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#endif
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#endif /* FF_DEFINED */
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