635 lines
24 KiB
C
635 lines
24 KiB
C
/*----------------------------------------------------------------------------/
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/ FatFs - Generic FAT Filesystem module R0.15 /
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/-----------------------------------------------------------------------------/
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/
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/ Copyright (C) 2022, 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 80286 /* Revision ID */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <dirent.h>
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#include "integer.h" /* Basic integer types */
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#include "ffconf.h" /* FatFs configuration options */
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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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#include "virpart.h"
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#endif
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#ifndef __LITEOS_M__
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#include "los_list.h"
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#endif
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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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/*--------------------------------*/
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/* LFN/Directory working buffer */
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/*--------------------------------*/
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#if FF_USE_LFN == 0 /* Non-LFN configuration */
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#define DEF_NAMBUF
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#define INIT_NAMBUF(fs)
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#define FREE_NAMBUF()
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#define LEAVE_MKFS(res) return res
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#else /* LFN configurations */
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#if FF_MAX_LFN < 12 || FF_MAX_LFN > 255
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#error Wrong setting of FF_MAX_LFN
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#endif
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#if FF_LFN_BUF < FF_SFN_BUF || FF_SFN_BUF < 12
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#error Wrong setting of FF_LFN_BUF or FF_SFN_BUF
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#endif
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#if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 3
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#error Wrong setting of FF_LFN_UNICODE
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#endif
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static const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* FAT: Offset of LFN characters in the directory entry */
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#if FF_USE_LFN == 1 /* LFN enabled with static working buffer */
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static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */
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#define DEF_NAMBUF
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#define INIT_NAMBUF(fs)
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#define FREE_NAMBUF()
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#define LEAVE_MKFS(res) return res
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#elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */
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#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */
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#define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; }
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#define FREE_NAMBUF()
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#define LEAVE_MKFS(res) return res
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#elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */
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#define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */
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#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; }
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#define FREE_NAMBUF() ff_memfree(lfn)
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#define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; }
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#define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */
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#else
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#error Wrong setting of FF_USE_LFN
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#endif /* FF_USE_LFN == 1 */
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#endif /* FF_USE_LFN == 0 */
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#define NS_NONAME 0x80 /* Not followed */
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#define NSFLAG 11 /* Index of the name status byte */
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/* Definitions of volume management */
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typedef struct {
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BYTE di; /* Physics disk id */
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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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QWORD ps; /* Partition start sector */
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QWORD pc; /* Partition sector count */
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} PARTITION;
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extern PARTITION VolToPart[]; /* Volume - Partition mapping table */
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#define LD2DI(vol) (VolToPart[vol].di) /* Get physical disk id */
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#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
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#if FF_MULTI_PARTITION /* Multiple partition configuration */
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#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
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#define LD2PS(vol) (VolToPart[vol].ps) /* Get partition start sector */
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#define LD2PC(vol) (VolToPart[vol].pc) /* Get partition sector count */
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#else /* Single partition configuration */
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#define LD2PT(vol) 0 /* Find first valid partition or in SFD */
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#define LD2PS(vol) 0
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#define LD2PC(vol) 0
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#endif
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/* Type of path name strings on FatFs API */
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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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typedef struct FAT_VIRTUAL_PARTITION {
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virpartinfo virtualinfo;
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BOOL isparamset;
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} FAT_VIR_PART;
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#define ISVIRPART(fs) ((fs)->vir_avail == FS_VIRENABLE)
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#define ISNORMAL(fs) ((fs)->vir_avail != FS_VIRENABLE)
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#define ISPARENT(fs) ((fs)->vir_flag == FS_PARENT)
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#define ISCHILD(fs) ((fs)->vir_flag != FS_PARENT)
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#define VIRINFO_EXTERNAL 0
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#define VIRINFO_BUILDIN 1
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#endif
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/* Type of path name strings on FatFs API (TCHAR) */
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#ifndef _INC_TCHAR
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#define _INC_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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#endif
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#if (FF_MAX_SS == FF_MIN_SS)
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#define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */
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#else
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#define SS(fs) ((fs)->ssize) /* Variable sector size */
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#endif
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/* Type of file size variables */
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typedef DWORD FSIZE_t;
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typedef QWORD LBA_t;
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/* DIR offset in fs win */
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#define DIR_Name 0 /* Short file name (11-byte) */
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#define DIR_Attr 11 /* Attribute (BYTE) */
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#define DIR_NTres 12 /* Lower case flag (BYTE) */
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#define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */
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#define DIR_CrtTime 14 /* Created time (DWORD) */
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#define DIR_LstAccDate 18 /* Last accessed date (WORD) */
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#define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */
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#define DIR_ModTime 22 /* Modified time (DWORD) */
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#define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */
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#define DIR_FileSize 28 /* File size (DWORD) */
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#define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */
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#define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */
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#define LDIR_Type 12 /* LFN: Entry type (BYTE) */
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#define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */
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#define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */
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/* Limits and boundaries */
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#define MAX_DIR 0x200000 /* Max size of FAT directory */
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#define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */
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#define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */
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#define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */
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/* Timestamp */
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#if FF_FS_NORTC == 1
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#if FF_NORTC_YEAR < 1980 || FF_NORTC_YEAR > 2107 || FF_NORTC_MON < 1 || FF_NORTC_MON > 12 || FF_NORTC_MDAY < 1 || FF_NORTC_MDAY > 31
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#error Invalid FF_FS_NORTC settings
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#endif
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#define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16)
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#else
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#define GET_FATTIME() get_fattime()
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#endif
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extern UINT time_status;
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/* Filesystem object structure (FATFS) */
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typedef struct {
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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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size_t 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_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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#endif
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DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
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DWORD fsize; /* Sectors per FAT */
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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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LBA_t winsect; /* Current sector appearing in the win[] */
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BYTE* win; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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DWORD st_clst;
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DWORD ct_clst;
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BYTE vir_flag; /* Flag of Virtual Filesystem Object, b0 : 1 for virtual Fatfs object, 0 for reality Fatfs object */
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BYTE vir_avail;
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DWORD vir_amount;
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VOID* parent_fs; /* Point to the reality Fatfs object, only available in virtual Fatfs object */
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CHAR namelabel[_MAX_ENTRYLENGTH + 1]; /* The name label point to the each virtual Fatfs object ,only available in virtual Fatfs obj */
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VOID** child_fs; /* Point to the child Fatfs object ,only available in reality Fatfs object */
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#endif
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#ifndef __LITEOS_M__
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int fs_uid;
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int fs_gid;
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mode_t fs_mode;
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#endif
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unsigned short fs_dmask;
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unsigned short fs_fmask;
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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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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, =2:contiguous, =3:fragmented in this session, b2:sub-directory stretched) */
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DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */
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FSIZE_t objsize; /* Object size (valid when sclust != 0) */
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#if FF_FS_LOCK
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UINT lockid; /* File lock ID origin from 1 (index of file semaphore 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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FFOBJID obj; /* Object identifier (must be the 1st member to detect 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 */
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BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
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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, set by application) */
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#endif
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#if !FF_FS_TINY
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BYTE* buf; /* File private data read/write window */
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#endif
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#ifndef __LITEOS_M__
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LOS_DL_LIST fp_entry;
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#endif
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} FIL;
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/* Directory object structure (DIR) */
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struct __dirstream {
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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 (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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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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BYTE atrootdir;
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#endif
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};
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/* File information structure (FILINFO) */
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typedef struct {
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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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DWORD sclst;
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#ifndef __LITEOS_M__
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LOS_DL_LIST fp_list;
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#endif
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} FILINFO;
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#ifndef __LITEOS_M__
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typedef struct {
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DWORD clst;
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FSIZE_t pos;
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} FAT_ENTRY;
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#endif
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/* Format parameter structure (MKFS_PARM) */
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typedef struct {
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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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int n_sect; /* Cluster size (sector) */
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} MKFS_PARM;
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typedef struct {
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DIR f_dir;
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FILINFO fno;
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#ifndef __LITEOS_M__
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FAT_ENTRY fat_entry;
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#endif
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} DIR_FILE;
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/* File function return code (FRESULT) */
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typedef enum {
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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 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 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 defined period */
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FR_LOCKED, /* (16) The operation is rejected according to the file 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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FR_NO_SPACE_LEFT, /* (20) No space left */
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FR_NO_DIRENTRY, /* (21) No directory entry to allocate */
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FR_NO_EMPTY_DIR, /* (22) Directory not empty */
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FR_IS_DIR, /* (23) Is a directory */
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FR_NO_DIR, /* (24) Not a directory */
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FR_NO_EPERM, /* (25) Operation not permitted */
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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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FR_MODIFIED, /* (26) Virtual Partition Info has been modified by other fictions */
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FR_CHAIN_ERR, /* (27) File cluster chain has been broken by the other enviornmnet */
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FR_INVAILD_FATFS, /* (28) FATFS object error */
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FR_NOVIRPART, /* (29) The external SD card has not been set a virtual partition configure */
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FR_OCCUPIED, /* (30) The virtual partition has been illegally occupied. */
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FR_NOTCLEAR, /* (31) The root directory is not clear */
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FR_NOTFIT, /* (32) The partition does not fit the virtual partition feature */
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#endif
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} FRESULT;
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/*--------------------------------------------------------------*/
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/* FatFs Module Application Interface */
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/*--------------------------------------------------------------*/
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#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
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FATFS* f_getfatfs (int vol);
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FRESULT f_scanfat (FATFS* fs);
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FRESULT f_boundary (FATFS *fs, DWORD clust);
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FRESULT f_disvirfs (FATFS* fs);
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FRESULT f_unregvirfs (FATFS* fs);
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FRESULT f_regvirfs (FATFS* fs);
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FRESULT f_checkvirpart (FATFS* fs, const TCHAR* path, BYTE vol);
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FRESULT f_makevirpart (FATFS* fs, const TCHAR* path, BYTE vol);
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FRESULT f_getvirfree (const TCHAR* path, DWORD* nclst, DWORD* cclst);
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FRESULT f_checkname (const TCHAR* path);
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#endif
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FRESULT f_open (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 (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from the file */
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FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to the file */
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FRESULT f_lseek (FIL* fp, FSIZE_t ofs); /* Move file pointer of the file object */
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FRESULT f_truncate (FIL* fp, FSIZE_t length); /* 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, FILINFO* fno, const TCHAR* path, 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 (const TCHAR* path); /* Delete an existing file or directory */
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FRESULT f_rename (const TCHAR* path_old, 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, BYTE attr, BYTE mask); /* Change attribute of a file/dir */
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FRESULT f_utime (const TCHAR* path, 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, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
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FRESULT f_getlabel (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, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
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FRESULT f_expand (FIL* fp, FSIZE_t offset, FSIZE_t fsz, int opt); /* Allocate a contiguous block to the file */
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FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
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FRESULT f_mkfs (const TCHAR* path, const MKFS_PARM* opt, void* work, UINT len); /* Create a FAT volume */
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FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], 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, const TCHAR* str, ...); /* Put a formatted string to the file */
|
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TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
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void f_clean (const TCHAR* path); /* clean all opening file and directory */
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|
void f_settimestatus (UINT status); /* system time flag setting */
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FRESULT f_fcheckfat (DIR_FILE* dir_info); /* check file cluster list */
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|
FRESULT f_getclustinfo (FIL* fp, DWORD* fclust, DWORD* fcount); /* get the clusters information of the file */
|
|
FRESULT f_checkopenlock(int index);
|
|
FRESULT sync_fs (FATFS* fs);
|
|
FRESULT sync_window(FATFS *fs);
|
|
FRESULT move_window (FATFS* fs, QWORD sector);
|
|
FRESULT fat_count_free_entries(DWORD *nclst, FATFS *fs);
|
|
void get_fileinfo (DIR* dp, FILINFO* fno);
|
|
DWORD get_fat (FFOBJID *obj, DWORD clst);
|
|
FRESULT put_fat(FATFS *fs, DWORD clst, DWORD val);
|
|
FRESULT mount_volume (const TCHAR **path, FATFS **rfs, BYTE mode);
|
|
QWORD clst2sect (FATFS* fs, DWORD clst );
|
|
DWORD ld_clust(FATFS *fs, const BYTE *dir);
|
|
void st_clust(FATFS *fs, BYTE *dir, DWORD cl);
|
|
DWORD ld_dword (const BYTE *ptr);
|
|
WORD ld_word (const BYTE *ptr);
|
|
void st_dword (BYTE *ptr, DWORD val);
|
|
void st_word (BYTE *ptr, WORD val);
|
|
FRESULT create_name (DIR *dp, const TCHAR **path);
|
|
int lock_fs (FATFS *fs);
|
|
UINT check_fs(FATFS *fs, QWORD sect);
|
|
UINT inc_lock(DIR* dp, int acc);
|
|
void unlock_fs (FATFS *fs, FRESULT res);
|
|
FRESULT dir_sdi (DIR *dp, DWORD ofs);
|
|
FRESULT dir_find(DIR *dp);
|
|
FRESULT dir_read(DIR *dp, int vol);
|
|
#ifndef __LITEOS_M__
|
|
FRESULT dir_read_massive(DIR *dp, int vol);
|
|
#endif
|
|
FRESULT dir_remove(DIR *dp);
|
|
FRESULT dir_next(DIR *dp, int stretch);
|
|
DWORD dir_ofs(DIR* dp);
|
|
FRESULT dir_register(DIR *dp);
|
|
DWORD create_chain (FFOBJID* obj, DWORD clst);
|
|
FRESULT remove_chain (FFOBJID* obj, DWORD clst, DWORD pclst);
|
|
void mem_set (void* dst, int val, UINT cnt);
|
|
void mem_cpy (void* dst, const void* src, UINT cnt);
|
|
int fatfs_get_vol (FATFS *fat);
|
|
FRESULT set_volumn_label(FATFS *fs, const TCHAR *label);
|
|
|
|
#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize))
|
|
#define f_error(fp) ((fp)->err)
|
|
#define f_tell(fp) ((fp)->fptr)
|
|
#define f_size(fp) ((fp)->obj.objsize)
|
|
#define f_rewind(fp) f_lseek((fp), 0)
|
|
#define f_rewinddir(dp) f_readdir((dp), 0)
|
|
#define f_rmdir(path) f_unlink(path)
|
|
#define f_unmount(path) f_mount(0, path, 0)
|
|
|
|
|
|
|
|
|
|
/*--------------------------------------------------------------*/
|
|
/* Additional Functions */
|
|
/*--------------------------------------------------------------*/
|
|
|
|
/* RTC function (provided by user) */
|
|
#if !FF_FS_READONLY && !FF_FS_NORTC
|
|
DWORD get_fattime (void); /* Get current time */
|
|
#endif
|
|
|
|
|
|
/* LFN support functions (defined in ffunicode.c) */
|
|
|
|
#if FF_USE_LFN >= 1
|
|
WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */
|
|
WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */
|
|
DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */
|
|
#endif
|
|
/* O/S dependent functions (samples available in ffsystem.c) */
|
|
void* ff_memalloc (UINT msize); /* Allocate memory block */
|
|
void ff_memfree (void* mblock); /* Free memory block */
|
|
#ifndef __LITEOS_M__
|
|
int ff_strnlen(const void *str, size_t maxlen);
|
|
#endif
|
|
|
|
/* Sync functions */
|
|
#if FF_FS_REENTRANT
|
|
int ff_cre_syncobj (BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */
|
|
int ff_req_grant (FF_SYNC_t* sobj); /* Lock sync object */
|
|
void ff_rel_grant (FF_SYNC_t* sobj); /* Unlock sync object */
|
|
int ff_del_syncobj (FF_SYNC_t* sobj); /* Delete a sync object */
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*--------------------------------------------------------------*/
|
|
/* Flags and Offset Address */
|
|
/*--------------------------------------------------------------*/
|
|
|
|
/* File access mode and open method flags (3rd argument of f_open) */
|
|
#define FA_READ 0x01
|
|
#define FA_WRITE 0x02
|
|
#define FA_OPEN_EXISTING 0x00
|
|
#define FA_CREATE_NEW 0x04
|
|
#define FA_CREATE_ALWAYS 0x08
|
|
#define FA_OPEN_ALWAYS 0x10
|
|
#define FA_OPEN_APPEND 0x30
|
|
|
|
/* Fast seek controls (2nd argument of f_lseek) */
|
|
#define CREATE_LINKMAP ((FSIZE_t)0 - 1)
|
|
|
|
/* Format options (2nd argument of f_mkfs) */
|
|
#define FM_FAT 0x01
|
|
#define FM_FAT32 0x02
|
|
#define FM_ANY 0x07
|
|
#define FM_SFD 0x08
|
|
|
|
/*System Time Flag */
|
|
#define SYSTEM_TIME_ENABLE 0x01
|
|
#define SYSTEM_TIME_DISABLE 0x00
|
|
|
|
/* Filesystem type (FATFS.fs_type) */
|
|
#define FS_FAT12 1
|
|
#define FS_FAT16 2
|
|
#define FS_FAT32 3
|
|
|
|
/* File attribute bits for directory entry (FILINFO.fattrib) */
|
|
#define AM_RDO 0x01 /* Read only */
|
|
#define AM_HID 0x02 /* Hidden */
|
|
#define AM_SYS 0x04 /* System */
|
|
#define AM_DIR 0x10 /* Directory */
|
|
#define AM_ARC 0x20 /* Archive */
|
|
#define AM_LNK 0x80 /* Symbol link */
|
|
|
|
#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
|
|
#define FS_PARENT 0x00
|
|
#define FS_CHILD 0x01
|
|
|
|
#define FS_VIRENABLE 0x01
|
|
#define FS_VIRDISABLE 0x00
|
|
|
|
#define PARENTFS(fs) ((FATFS*)((fs)->parent_fs))
|
|
#define CHILDFS(fs, i) ((FATFS*)(*((fs)->child_fs + (i))))
|
|
#endif
|
|
|
|
#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
|
|
/* Global Data Area @ 0x00 - 0x31 (32 Bytes) */
|
|
#define VR_ITEMSIZE 0x20
|
|
#define VR_GLOBAL 0x00
|
|
#define VR_PartitionCnt 0x00 /* Virtual Partition Amount */
|
|
#define VR_PartitionFSType 0x01 /* Filesystem Type (1 Byte) */
|
|
#define VR_PartitionStSec 0x02 /* Partition Start Sector (4 Bytes) */
|
|
#define VR_PartitionCtSec 0x06 /* Partition Sectors Count (4 Bytes) */
|
|
#define VR_PartitionClstSz 0x0A /* Partition Clust Size (2 Bytes) */
|
|
#define VR_PartitionCtClst 0x0C /* Partition Clust Amount (4 Bytes) */
|
|
/* Each Virtual Partition Area (32 Bytes) */
|
|
/* Start offset at 0x20, Each entry is at 32 Bytes */
|
|
#define VR_PARTITION 0x20
|
|
#define VR_Available 0x00 /* Vritual Partition Item Flag (1 Bytes) */
|
|
#define VR_StartClust 0x01 /* Vritual Partition Start Cluster (4 Bytes) */
|
|
#define VR_CountClust 0x05 /* Virtual Partition Cluster Count (4 Bytes) */
|
|
#define VR_Entry 0x10 /* Virtual Partition Entry Label (16 Bytes) */
|
|
|
|
#define VR_VertifyString 0x1FC /* Vertify String (4 Bytes), Must be "LITE" */
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* FF_DEFINED */
|