Gleb Klochkov / Mbed OS Climatcontroll_Main

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Dependencies:   esp8266-driver

mbed-os/features/filesystem/fat/ChaN/ff.cpp@0:2f0e1e23c242, 2018-04-13 (annotated)

Committer:
glebiuskv
Date:
Fri Apr 13 08:53:46 2018 +0000
Revision:
0:2f0e1e23c242
initial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
glebiuskv 0:2f0e1e23c242 1 /*----------------------------------------------------------------------------/
glebiuskv 0:2f0e1e23c242 2 / FatFs - Generic FAT Filesystem Module R0.13a /
glebiuskv 0:2f0e1e23c242 3 /-----------------------------------------------------------------------------/
glebiuskv 0:2f0e1e23c242 4 /
glebiuskv 0:2f0e1e23c242 5 / Copyright (C) 2017, ChaN, all right reserved.
glebiuskv 0:2f0e1e23c242 6 /
glebiuskv 0:2f0e1e23c242 7 / FatFs module is an open source software. Redistribution and use of FatFs in
glebiuskv 0:2f0e1e23c242 8 / source and binary forms, with or without modification, are permitted provided
glebiuskv 0:2f0e1e23c242 9 / that the following condition is met:
glebiuskv 0:2f0e1e23c242 10 /
glebiuskv 0:2f0e1e23c242 11 / 1. Redistributions of source code must retain the above copyright notice,
glebiuskv 0:2f0e1e23c242 12 / this condition and the following disclaimer.
glebiuskv 0:2f0e1e23c242 13 /
glebiuskv 0:2f0e1e23c242 14 / This software is provided by the copyright holder and contributors "AS IS"
glebiuskv 0:2f0e1e23c242 15 / and any warranties related to this software are DISCLAIMED.
glebiuskv 0:2f0e1e23c242 16 / The copyright owner or contributors be NOT LIABLE for any damages caused
glebiuskv 0:2f0e1e23c242 17 / by use of this software.
glebiuskv 0:2f0e1e23c242 18 /
glebiuskv 0:2f0e1e23c242 19 /----------------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 20
glebiuskv 0:2f0e1e23c242 21
glebiuskv 0:2f0e1e23c242 22 #include "ff.h" /* Declarations of FatFs API */
glebiuskv 0:2f0e1e23c242 23 #include "diskio.h" /* Declarations of device I/O functions */
glebiuskv 0:2f0e1e23c242 24
glebiuskv 0:2f0e1e23c242 25
glebiuskv 0:2f0e1e23c242 26 /*--------------------------------------------------------------------------
glebiuskv 0:2f0e1e23c242 27
glebiuskv 0:2f0e1e23c242 28 Module Private Definitions
glebiuskv 0:2f0e1e23c242 29
glebiuskv 0:2f0e1e23c242 30 ---------------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 31
glebiuskv 0:2f0e1e23c242 32 #if FF_DEFINED != 89352 /* Revision ID */
glebiuskv 0:2f0e1e23c242 33 #error Wrong include file (ff.h).
glebiuskv 0:2f0e1e23c242 34 #endif
glebiuskv 0:2f0e1e23c242 35
glebiuskv 0:2f0e1e23c242 36
glebiuskv 0:2f0e1e23c242 37 /* Character code support macros */
glebiuskv 0:2f0e1e23c242 38 #define IsUpper(c) ((c) >= 'A' && (c) <= 'Z')
glebiuskv 0:2f0e1e23c242 39 #define IsLower(c) ((c) >= 'a' && (c) <= 'z')
glebiuskv 0:2f0e1e23c242 40 #define IsDigit(c) ((c) >= '0' && (c) <= '9')
glebiuskv 0:2f0e1e23c242 41 #define IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF)
glebiuskv 0:2f0e1e23c242 42 #define IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF)
glebiuskv 0:2f0e1e23c242 43 #define IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF)
glebiuskv 0:2f0e1e23c242 44
glebiuskv 0:2f0e1e23c242 45
glebiuskv 0:2f0e1e23c242 46 /* Additional file attribute bits for internal use */
glebiuskv 0:2f0e1e23c242 47 #define AM_VOL 0x08 /* Volume label */
glebiuskv 0:2f0e1e23c242 48 #define AM_LFN 0x0F /* LFN entry */
glebiuskv 0:2f0e1e23c242 49 #define AM_MASK 0x3F /* Mask of defined bits */
glebiuskv 0:2f0e1e23c242 50
glebiuskv 0:2f0e1e23c242 51
glebiuskv 0:2f0e1e23c242 52 /* Additional file access control and file status flags for internal use */
glebiuskv 0:2f0e1e23c242 53 #define FA_SEEKEND 0x20 /* Seek to end of the file on file open */
glebiuskv 0:2f0e1e23c242 54 #define FA_MODIFIED 0x40 /* File has been modified */
glebiuskv 0:2f0e1e23c242 55 #define FA_DIRTY 0x80 /* FIL.buf[] needs to be written-back */
glebiuskv 0:2f0e1e23c242 56
glebiuskv 0:2f0e1e23c242 57
glebiuskv 0:2f0e1e23c242 58 /* Name status flags in fn[11] */
glebiuskv 0:2f0e1e23c242 59 #define NSFLAG 11 /* Index of the name status byte */
glebiuskv 0:2f0e1e23c242 60 #define NS_LOSS 0x01 /* Out of 8.3 format */
glebiuskv 0:2f0e1e23c242 61 #define NS_LFN 0x02 /* Force to create LFN entry */
glebiuskv 0:2f0e1e23c242 62 #define NS_LAST 0x04 /* Last segment */
glebiuskv 0:2f0e1e23c242 63 #define NS_BODY 0x08 /* Lower case flag (body) */
glebiuskv 0:2f0e1e23c242 64 #define NS_EXT 0x10 /* Lower case flag (ext) */
glebiuskv 0:2f0e1e23c242 65 #define NS_DOT 0x20 /* Dot entry */
glebiuskv 0:2f0e1e23c242 66 #define NS_NOLFN 0x40 /* Do not find LFN */
glebiuskv 0:2f0e1e23c242 67 #define NS_NONAME 0x80 /* Not followed */
glebiuskv 0:2f0e1e23c242 68
glebiuskv 0:2f0e1e23c242 69
glebiuskv 0:2f0e1e23c242 70 /* Limits and boundaries */
glebiuskv 0:2f0e1e23c242 71 #define MAX_DIR 0x200000 /* Max size of FAT directory */
glebiuskv 0:2f0e1e23c242 72 #define MAX_DIR_EX 0x10000000 /* Max size of exFAT directory */
glebiuskv 0:2f0e1e23c242 73 #define MAX_FAT12 0xFF5 /* Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior) */
glebiuskv 0:2f0e1e23c242 74 #define MAX_FAT16 0xFFF5 /* Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior) */
glebiuskv 0:2f0e1e23c242 75 #define MAX_FAT32 0x0FFFFFF5 /* Max FAT32 clusters (not specified, practical limit) */
glebiuskv 0:2f0e1e23c242 76 #define MAX_EXFAT 0x7FFFFFFD /* Max exFAT clusters (differs from specs, implementation limit) */
glebiuskv 0:2f0e1e23c242 77
glebiuskv 0:2f0e1e23c242 78
glebiuskv 0:2f0e1e23c242 79 /* FatFs refers the FAT structure as simple byte array instead of structure member
glebiuskv 0:2f0e1e23c242 80 / because the C structure is not binary compatible between different platforms */
glebiuskv 0:2f0e1e23c242 81
glebiuskv 0:2f0e1e23c242 82 #define BS_JmpBoot 0 /* x86 jump instruction (3-byte) */
glebiuskv 0:2f0e1e23c242 83 #define BS_OEMName 3 /* OEM name (8-byte) */
glebiuskv 0:2f0e1e23c242 84 #define BPB_BytsPerSec 11 /* Sector size [byte] (WORD) */
glebiuskv 0:2f0e1e23c242 85 #define BPB_SecPerClus 13 /* Cluster size [sector] (BYTE) */
glebiuskv 0:2f0e1e23c242 86 #define BPB_RsvdSecCnt 14 /* Size of reserved area [sector] (WORD) */
glebiuskv 0:2f0e1e23c242 87 #define BPB_NumFATs 16 /* Number of FATs (BYTE) */
glebiuskv 0:2f0e1e23c242 88 #define BPB_RootEntCnt 17 /* Size of root directory area for FAT [entry] (WORD) */
glebiuskv 0:2f0e1e23c242 89 #define BPB_TotSec16 19 /* Volume size (16-bit) [sector] (WORD) */
glebiuskv 0:2f0e1e23c242 90 #define BPB_Media 21 /* Media descriptor byte (BYTE) */
glebiuskv 0:2f0e1e23c242 91 #define BPB_FATSz16 22 /* FAT size (16-bit) [sector] (WORD) */
glebiuskv 0:2f0e1e23c242 92 #define BPB_SecPerTrk 24 /* Number of sectors per track for int13h [sector] (WORD) */
glebiuskv 0:2f0e1e23c242 93 #define BPB_NumHeads 26 /* Number of heads for int13h (WORD) */
glebiuskv 0:2f0e1e23c242 94 #define BPB_HiddSec 28 /* Volume offset from top of the drive (DWORD) */
glebiuskv 0:2f0e1e23c242 95 #define BPB_TotSec32 32 /* Volume size (32-bit) [sector] (DWORD) */
glebiuskv 0:2f0e1e23c242 96 #define BS_DrvNum 36 /* Physical drive number for int13h (BYTE) */
glebiuskv 0:2f0e1e23c242 97 #define BS_NTres 37 /* WindowsNT error flag (BYTE) */
glebiuskv 0:2f0e1e23c242 98 #define BS_BootSig 38 /* Extended boot signature (BYTE) */
glebiuskv 0:2f0e1e23c242 99 #define BS_VolID 39 /* Volume serial number (DWORD) */
glebiuskv 0:2f0e1e23c242 100 #define BS_VolLab 43 /* Volume label string (8-byte) */
glebiuskv 0:2f0e1e23c242 101 #define BS_FilSysType 54 /* Filesystem type string (8-byte) */
glebiuskv 0:2f0e1e23c242 102 #define BS_BootCode 62 /* Boot code (448-byte) */
glebiuskv 0:2f0e1e23c242 103 #define BS_55AA 510 /* Signature word (WORD) */
glebiuskv 0:2f0e1e23c242 104
glebiuskv 0:2f0e1e23c242 105 #define BPB_FATSz32 36 /* FAT32: FAT size [sector] (DWORD) */
glebiuskv 0:2f0e1e23c242 106 #define BPB_ExtFlags32 40 /* FAT32: Extended flags (WORD) */
glebiuskv 0:2f0e1e23c242 107 #define BPB_FSVer32 42 /* FAT32: Filesystem version (WORD) */
glebiuskv 0:2f0e1e23c242 108 #define BPB_RootClus32 44 /* FAT32: Root directory cluster (DWORD) */
glebiuskv 0:2f0e1e23c242 109 #define BPB_FSInfo32 48 /* FAT32: Offset of FSINFO sector (WORD) */
glebiuskv 0:2f0e1e23c242 110 #define BPB_BkBootSec32 50 /* FAT32: Offset of backup boot sector (WORD) */
glebiuskv 0:2f0e1e23c242 111 #define BS_DrvNum32 64 /* FAT32: Physical drive number for int13h (BYTE) */
glebiuskv 0:2f0e1e23c242 112 #define BS_NTres32 65 /* FAT32: Error flag (BYTE) */
glebiuskv 0:2f0e1e23c242 113 #define BS_BootSig32 66 /* FAT32: Extended boot signature (BYTE) */
glebiuskv 0:2f0e1e23c242 114 #define BS_VolID32 67 /* FAT32: Volume serial number (DWORD) */
glebiuskv 0:2f0e1e23c242 115 #define BS_VolLab32 71 /* FAT32: Volume label string (8-byte) */
glebiuskv 0:2f0e1e23c242 116 #define BS_FilSysType32 82 /* FAT32: Filesystem type string (8-byte) */
glebiuskv 0:2f0e1e23c242 117 #define BS_BootCode32 90 /* FAT32: Boot code (420-byte) */
glebiuskv 0:2f0e1e23c242 118
glebiuskv 0:2f0e1e23c242 119 #define BPB_ZeroedEx 11 /* exFAT: MBZ field (53-byte) */
glebiuskv 0:2f0e1e23c242 120 #define BPB_VolOfsEx 64 /* exFAT: Volume offset from top of the drive [sector] (QWORD) */
glebiuskv 0:2f0e1e23c242 121 #define BPB_TotSecEx 72 /* exFAT: Volume size [sector] (QWORD) */
glebiuskv 0:2f0e1e23c242 122 #define BPB_FatOfsEx 80 /* exFAT: FAT offset from top of the volume [sector] (DWORD) */
glebiuskv 0:2f0e1e23c242 123 #define BPB_FatSzEx 84 /* exFAT: FAT size [sector] (DWORD) */
glebiuskv 0:2f0e1e23c242 124 #define BPB_DataOfsEx 88 /* exFAT: Data offset from top of the volume [sector] (DWORD) */
glebiuskv 0:2f0e1e23c242 125 #define BPB_NumClusEx 92 /* exFAT: Number of clusters (DWORD) */
glebiuskv 0:2f0e1e23c242 126 #define BPB_RootClusEx 96 /* exFAT: Root directory start cluster (DWORD) */
glebiuskv 0:2f0e1e23c242 127 #define BPB_VolIDEx 100 /* exFAT: Volume serial number (DWORD) */
glebiuskv 0:2f0e1e23c242 128 #define BPB_FSVerEx 104 /* exFAT: Filesystem version (WORD) */
glebiuskv 0:2f0e1e23c242 129 #define BPB_VolFlagEx 106 /* exFAT: Volume flags (WORD) */
glebiuskv 0:2f0e1e23c242 130 #define BPB_BytsPerSecEx 108 /* exFAT: Log2 of sector size in unit of byte (BYTE) */
glebiuskv 0:2f0e1e23c242 131 #define BPB_SecPerClusEx 109 /* exFAT: Log2 of cluster size in unit of sector (BYTE) */
glebiuskv 0:2f0e1e23c242 132 #define BPB_NumFATsEx 110 /* exFAT: Number of FATs (BYTE) */
glebiuskv 0:2f0e1e23c242 133 #define BPB_DrvNumEx 111 /* exFAT: Physical drive number for int13h (BYTE) */
glebiuskv 0:2f0e1e23c242 134 #define BPB_PercInUseEx 112 /* exFAT: Percent in use (BYTE) */
glebiuskv 0:2f0e1e23c242 135 #define BPB_RsvdEx 113 /* exFAT: Reserved (7-byte) */
glebiuskv 0:2f0e1e23c242 136 #define BS_BootCodeEx 120 /* exFAT: Boot code (390-byte) */
glebiuskv 0:2f0e1e23c242 137
glebiuskv 0:2f0e1e23c242 138 #define DIR_Name 0 /* Short file name (11-byte) */
glebiuskv 0:2f0e1e23c242 139 #define DIR_Attr 11 /* Attribute (BYTE) */
glebiuskv 0:2f0e1e23c242 140 #define DIR_NTres 12 /* Lower case flag (BYTE) */
glebiuskv 0:2f0e1e23c242 141 #define DIR_CrtTime10 13 /* Created time sub-second (BYTE) */
glebiuskv 0:2f0e1e23c242 142 #define DIR_CrtTime 14 /* Created time (DWORD) */
glebiuskv 0:2f0e1e23c242 143 #define DIR_LstAccDate 18 /* Last accessed date (WORD) */
glebiuskv 0:2f0e1e23c242 144 #define DIR_FstClusHI 20 /* Higher 16-bit of first cluster (WORD) */
glebiuskv 0:2f0e1e23c242 145 #define DIR_ModTime 22 /* Modified time (DWORD) */
glebiuskv 0:2f0e1e23c242 146 #define DIR_FstClusLO 26 /* Lower 16-bit of first cluster (WORD) */
glebiuskv 0:2f0e1e23c242 147 #define DIR_FileSize 28 /* File size (DWORD) */
glebiuskv 0:2f0e1e23c242 148 #define LDIR_Ord 0 /* LFN: LFN order and LLE flag (BYTE) */
glebiuskv 0:2f0e1e23c242 149 #define LDIR_Attr 11 /* LFN: LFN attribute (BYTE) */
glebiuskv 0:2f0e1e23c242 150 #define LDIR_Type 12 /* LFN: Entry type (BYTE) */
glebiuskv 0:2f0e1e23c242 151 #define LDIR_Chksum 13 /* LFN: Checksum of the SFN (BYTE) */
glebiuskv 0:2f0e1e23c242 152 #define LDIR_FstClusLO 26 /* LFN: MBZ field (WORD) */
glebiuskv 0:2f0e1e23c242 153 #define XDIR_Type 0 /* exFAT: Type of exFAT directory entry (BYTE) */
glebiuskv 0:2f0e1e23c242 154 #define XDIR_NumLabel 1 /* exFAT: Number of volume label characters (BYTE) */
glebiuskv 0:2f0e1e23c242 155 #define XDIR_Label 2 /* exFAT: Volume label (11-WORD) */
glebiuskv 0:2f0e1e23c242 156 #define XDIR_CaseSum 4 /* exFAT: Sum of case conversion table (DWORD) */
glebiuskv 0:2f0e1e23c242 157 #define XDIR_NumSec 1 /* exFAT: Number of secondary entries (BYTE) */
glebiuskv 0:2f0e1e23c242 158 #define XDIR_SetSum 2 /* exFAT: Sum of the set of directory entries (WORD) */
glebiuskv 0:2f0e1e23c242 159 #define XDIR_Attr 4 /* exFAT: File attribute (WORD) */
glebiuskv 0:2f0e1e23c242 160 #define XDIR_CrtTime 8 /* exFAT: Created time (DWORD) */
glebiuskv 0:2f0e1e23c242 161 #define XDIR_ModTime 12 /* exFAT: Modified time (DWORD) */
glebiuskv 0:2f0e1e23c242 162 #define XDIR_AccTime 16 /* exFAT: Last accessed time (DWORD) */
glebiuskv 0:2f0e1e23c242 163 #define XDIR_CrtTime10 20 /* exFAT: Created time subsecond (BYTE) */
glebiuskv 0:2f0e1e23c242 164 #define XDIR_ModTime10 21 /* exFAT: Modified time subsecond (BYTE) */
glebiuskv 0:2f0e1e23c242 165 #define XDIR_CrtTZ 22 /* exFAT: Created timezone (BYTE) */
glebiuskv 0:2f0e1e23c242 166 #define XDIR_ModTZ 23 /* exFAT: Modified timezone (BYTE) */
glebiuskv 0:2f0e1e23c242 167 #define XDIR_AccTZ 24 /* exFAT: Last accessed timezone (BYTE) */
glebiuskv 0:2f0e1e23c242 168 #define XDIR_GenFlags 33 /* exFAT: General secondary flags (BYTE) */
glebiuskv 0:2f0e1e23c242 169 #define XDIR_NumName 35 /* exFAT: Number of file name characters (BYTE) */
glebiuskv 0:2f0e1e23c242 170 #define XDIR_NameHash 36 /* exFAT: Hash of file name (WORD) */
glebiuskv 0:2f0e1e23c242 171 #define XDIR_ValidFileSize 40 /* exFAT: Valid file size (QWORD) */
glebiuskv 0:2f0e1e23c242 172 #define XDIR_FstClus 52 /* exFAT: First cluster of the file data (DWORD) */
glebiuskv 0:2f0e1e23c242 173 #define XDIR_FileSize 56 /* exFAT: File/Directory size (QWORD) */
glebiuskv 0:2f0e1e23c242 174
glebiuskv 0:2f0e1e23c242 175 #define SZDIRE 32 /* Size of a directory entry */
glebiuskv 0:2f0e1e23c242 176 #define DDEM 0xE5 /* Deleted directory entry mark set to DIR_Name[0] */
glebiuskv 0:2f0e1e23c242 177 #define RDDEM 0x05 /* Replacement of the character collides with DDEM */
glebiuskv 0:2f0e1e23c242 178 #define LLEF 0x40 /* Last long entry flag in LDIR_Ord */
glebiuskv 0:2f0e1e23c242 179
glebiuskv 0:2f0e1e23c242 180 #define FSI_LeadSig 0 /* FAT32 FSI: Leading signature (DWORD) */
glebiuskv 0:2f0e1e23c242 181 #define FSI_StrucSig 484 /* FAT32 FSI: Structure signature (DWORD) */
glebiuskv 0:2f0e1e23c242 182 #define FSI_Free_Count 488 /* FAT32 FSI: Number of free clusters (DWORD) */
glebiuskv 0:2f0e1e23c242 183 #define FSI_Nxt_Free 492 /* FAT32 FSI: Last allocated cluster (DWORD) */
glebiuskv 0:2f0e1e23c242 184
glebiuskv 0:2f0e1e23c242 185 #define MBR_Table 446 /* MBR: Offset of partition table in the MBR */
glebiuskv 0:2f0e1e23c242 186 #define SZ_PTE 16 /* MBR: Size of a partition table entry */
glebiuskv 0:2f0e1e23c242 187 #define PTE_Boot 0 /* MBR PTE: Boot indicator */
glebiuskv 0:2f0e1e23c242 188 #define PTE_StHead 1 /* MBR PTE: Start head */
glebiuskv 0:2f0e1e23c242 189 #define PTE_StSec 2 /* MBR PTE: Start sector */
glebiuskv 0:2f0e1e23c242 190 #define PTE_StCyl 3 /* MBR PTE: Start cylinder */
glebiuskv 0:2f0e1e23c242 191 #define PTE_System 4 /* MBR PTE: System ID */
glebiuskv 0:2f0e1e23c242 192 #define PTE_EdHead 5 /* MBR PTE: End head */
glebiuskv 0:2f0e1e23c242 193 #define PTE_EdSec 6 /* MBR PTE: End sector */
glebiuskv 0:2f0e1e23c242 194 #define PTE_EdCyl 7 /* MBR PTE: End cylinder */
glebiuskv 0:2f0e1e23c242 195 #define PTE_StLba 8 /* MBR PTE: Start in LBA */
glebiuskv 0:2f0e1e23c242 196 #define PTE_SizLba 12 /* MBR PTE: Size in LBA */
glebiuskv 0:2f0e1e23c242 197
glebiuskv 0:2f0e1e23c242 198
glebiuskv 0:2f0e1e23c242 199 /* Post process on fatal error in the file operations */
glebiuskv 0:2f0e1e23c242 200 #define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF(fs, res); }
glebiuskv 0:2f0e1e23c242 201
glebiuskv 0:2f0e1e23c242 202
glebiuskv 0:2f0e1e23c242 203 /* Re-entrancy related */
glebiuskv 0:2f0e1e23c242 204 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 205 #if FF_USE_LFN == 1
glebiuskv 0:2f0e1e23c242 206 #error Static LFN work area cannot be used at thread-safe configuration
glebiuskv 0:2f0e1e23c242 207 #endif
glebiuskv 0:2f0e1e23c242 208 #define LEAVE_FF(fs, res) { unlock_fs(fs, res); return res; }
glebiuskv 0:2f0e1e23c242 209 #else
glebiuskv 0:2f0e1e23c242 210 #define LEAVE_FF(fs, res) return res
glebiuskv 0:2f0e1e23c242 211 #endif
glebiuskv 0:2f0e1e23c242 212
glebiuskv 0:2f0e1e23c242 213
glebiuskv 0:2f0e1e23c242 214 /* Definitions of volume - physical location conversion */
glebiuskv 0:2f0e1e23c242 215 #if FF_MULTI_PARTITION
glebiuskv 0:2f0e1e23c242 216 #define LD2PD(vol) VolToPart[vol].pd /* Get physical drive number */
glebiuskv 0:2f0e1e23c242 217 #define LD2PT(vol) VolToPart[vol].pt /* Get partition index */
glebiuskv 0:2f0e1e23c242 218 #else
glebiuskv 0:2f0e1e23c242 219 #define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
glebiuskv 0:2f0e1e23c242 220 #define LD2PT(vol) 0 /* Find first valid partition or in SFD */
glebiuskv 0:2f0e1e23c242 221 #endif
glebiuskv 0:2f0e1e23c242 222
glebiuskv 0:2f0e1e23c242 223
glebiuskv 0:2f0e1e23c242 224 /* Definitions of sector size */
glebiuskv 0:2f0e1e23c242 225 #if (FF_MAX_SS < FF_MIN_SS) || (FF_MAX_SS != 512 && FF_MAX_SS != 1024 && FF_MAX_SS != 2048 && FF_MAX_SS != 4096) || (FF_MIN_SS != 512 && FF_MIN_SS != 1024 && FF_MIN_SS != 2048 && FF_MIN_SS != 4096)
glebiuskv 0:2f0e1e23c242 226 #error Wrong sector size configuration
glebiuskv 0:2f0e1e23c242 227 #endif
glebiuskv 0:2f0e1e23c242 228 #if FF_MAX_SS == FF_MIN_SS
glebiuskv 0:2f0e1e23c242 229 #define SS(fs) ((UINT)FF_MAX_SS) /* Fixed sector size */
glebiuskv 0:2f0e1e23c242 230 #else
glebiuskv 0:2f0e1e23c242 231 #define SS(fs) ((fs)->ssize) /* Variable sector size */
glebiuskv 0:2f0e1e23c242 232 #endif
glebiuskv 0:2f0e1e23c242 233
glebiuskv 0:2f0e1e23c242 234
glebiuskv 0:2f0e1e23c242 235 /* Timestamp */
glebiuskv 0:2f0e1e23c242 236 #if FF_FS_NORTC == 1
glebiuskv 0:2f0e1e23c242 237 #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
glebiuskv 0:2f0e1e23c242 238 #error Invalid FF_FS_NORTC settings
glebiuskv 0:2f0e1e23c242 239 #endif
glebiuskv 0:2f0e1e23c242 240 #define GET_FATTIME() ((DWORD)(FF_NORTC_YEAR - 1980) << 25 | (DWORD)FF_NORTC_MON << 21 | (DWORD)FF_NORTC_MDAY << 16)
glebiuskv 0:2f0e1e23c242 241 #else
glebiuskv 0:2f0e1e23c242 242 #define GET_FATTIME() get_fattime()
glebiuskv 0:2f0e1e23c242 243 #endif
glebiuskv 0:2f0e1e23c242 244
glebiuskv 0:2f0e1e23c242 245
glebiuskv 0:2f0e1e23c242 246 /* File lock controls */
glebiuskv 0:2f0e1e23c242 247 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 248 #if FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 249 #error FF_FS_LOCK must be 0 at read-only configuration
glebiuskv 0:2f0e1e23c242 250 #endif
glebiuskv 0:2f0e1e23c242 251 typedef struct {
glebiuskv 0:2f0e1e23c242 252 FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */
glebiuskv 0:2f0e1e23c242 253 DWORD clu; /* Object ID 2, containing directory (0:root) */
glebiuskv 0:2f0e1e23c242 254 DWORD ofs; /* Object ID 3, offset in the directory */
glebiuskv 0:2f0e1e23c242 255 WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
glebiuskv 0:2f0e1e23c242 256 } FILESEM;
glebiuskv 0:2f0e1e23c242 257 #endif
glebiuskv 0:2f0e1e23c242 258
glebiuskv 0:2f0e1e23c242 259
glebiuskv 0:2f0e1e23c242 260 /* SBCS up-case tables (\x80-\xFF) */
glebiuskv 0:2f0e1e23c242 261 #define TBL_CT437 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 262 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 263 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 264 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 265 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 266 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 267 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 268 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 269 #define TBL_CT720 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 270 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 271 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 272 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 273 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 274 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 275 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 276 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 277 #define TBL_CT737 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 278 0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
glebiuskv 0:2f0e1e23c242 279 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96, \
glebiuskv 0:2f0e1e23c242 280 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 281 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 282 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 283 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xEF,0xF5,0xF0,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 284 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 285 #define TBL_CT771 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 286 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 287 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 288 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 289 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 290 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDC,0xDE,0xDE, \
glebiuskv 0:2f0e1e23c242 291 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 292 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 293 #define TBL_CT775 {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 294 0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 295 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 296 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 297 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 298 0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 299 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 300 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 301 #define TBL_CT850 {0x43,0x55,0x45,0x41,0x41,0x41,0x41,0x43,0x45,0x45,0x45,0x49,0x49,0x49,0x41,0x41, \
glebiuskv 0:2f0e1e23c242 302 0x45,0x92,0x92,0x4F,0x4F,0x4F,0x55,0x55,0x59,0x4F,0x55,0x4F,0x9C,0x4F,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 303 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 304 0xB0,0xB1,0xB2,0xB3,0xB4,0x41,0x41,0x41,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 305 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0x41,0x41,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 306 0xD1,0xD1,0x45,0x45,0x45,0x49,0x49,0x49,0x49,0xD9,0xDA,0xDB,0xDC,0xDD,0x49,0xDF, \
glebiuskv 0:2f0e1e23c242 307 0x4F,0xE1,0x4F,0x4F,0x4F,0x4F,0xE6,0xE8,0xE8,0x55,0x55,0x55,0x59,0x59,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 308 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 309 #define TBL_CT852 {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 310 0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0xAC, \
glebiuskv 0:2f0e1e23c242 311 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 312 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
glebiuskv 0:2f0e1e23c242 313 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 314 0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 315 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF, \
glebiuskv 0:2f0e1e23c242 316 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 317 #define TBL_CT855 {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F, \
glebiuskv 0:2f0e1e23c242 318 0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
glebiuskv 0:2f0e1e23c242 319 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 320 0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 321 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 322 0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
glebiuskv 0:2f0e1e23c242 323 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 324 0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 325 #define TBL_CT857 {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x49,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 326 0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
glebiuskv 0:2f0e1e23c242 327 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 328 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 329 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 330 0xD0,0xD1,0xD2,0xD3,0xD4,0x49,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 331 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 332 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 333 #define TBL_CT860 {0x80,0x9A,0x90,0x8F,0x8E,0x91,0x86,0x80,0x89,0x89,0x92,0x8B,0x8C,0x98,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 334 0x90,0x91,0x92,0x8C,0x99,0xA9,0x96,0x9D,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 335 0x86,0x8B,0x9F,0x96,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 336 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 337 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 338 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 339 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 340 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 341 #define TBL_CT861 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x8B,0x8B,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 342 0x90,0x92,0x92,0x4F,0x99,0x8D,0x55,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 343 0xA4,0xA5,0xA6,0xA7,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 344 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 345 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 346 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 347 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 348 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 349 #define TBL_CT862 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 350 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 351 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 352 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 353 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 354 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 355 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 356 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 357 #define TBL_CT863 {0x43,0x55,0x45,0x41,0x41,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x41,0x8F, \
glebiuskv 0:2f0e1e23c242 358 0x45,0x45,0x45,0x4F,0x45,0x49,0x55,0x55,0x98,0x4F,0x55,0x9B,0x9C,0x55,0x55,0x9F, \
glebiuskv 0:2f0e1e23c242 359 0xA0,0xA1,0x4F,0x55,0xA4,0xA5,0xA6,0xA7,0x49,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 360 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 361 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 362 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 363 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 364 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 365 #define TBL_CT864 {0x80,0x9A,0x45,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 366 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 367 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 368 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 369 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 370 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 371 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 372 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 373 #define TBL_CT865 {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 374 0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 375 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 376 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 377 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 378 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 379 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF, \
glebiuskv 0:2f0e1e23c242 380 0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 381 #define TBL_CT866 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 382 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 383 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 384 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 385 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 386 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
glebiuskv 0:2f0e1e23c242 387 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
glebiuskv 0:2f0e1e23c242 388 0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 389 #define TBL_CT869 {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F, \
glebiuskv 0:2f0e1e23c242 390 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x86,0x9C,0x8D,0x8F,0x90, \
glebiuskv 0:2f0e1e23c242 391 0x91,0x90,0x92,0x95,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF, \
glebiuskv 0:2f0e1e23c242 392 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
glebiuskv 0:2f0e1e23c242 393 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF, \
glebiuskv 0:2f0e1e23c242 394 0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xA4,0xA5,0xA6,0xD9,0xDA,0xDB,0xDC,0xA7,0xA8,0xDF, \
glebiuskv 0:2f0e1e23c242 395 0xA9,0xAA,0xAC,0xAD,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xCF,0xCF,0xD0,0xEF, \
glebiuskv 0:2f0e1e23c242 396 0xF0,0xF1,0xD1,0xD2,0xD3,0xF5,0xD4,0xF7,0xF8,0xF9,0xD5,0x96,0x95,0x98,0xFE,0xFF}
glebiuskv 0:2f0e1e23c242 397
glebiuskv 0:2f0e1e23c242 398
glebiuskv 0:2f0e1e23c242 399 /* DBCS code range |----- 1st byte -----| |----------- 2nd byte -----------| */
glebiuskv 0:2f0e1e23c242 400 #define TBL_DC932 {0x81, 0x9F, 0xE0, 0xFC, 0x40, 0x7E, 0x80, 0xFC, 0x00, 0x00}
glebiuskv 0:2f0e1e23c242 401 #define TBL_DC936 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0x80, 0xFE, 0x00, 0x00}
glebiuskv 0:2f0e1e23c242 402 #define TBL_DC949 {0x81, 0xFE, 0x00, 0x00, 0x41, 0x5A, 0x61, 0x7A, 0x81, 0xFE}
glebiuskv 0:2f0e1e23c242 403 #define TBL_DC950 {0x81, 0xFE, 0x00, 0x00, 0x40, 0x7E, 0xA1, 0xFE, 0x00, 0x00}
glebiuskv 0:2f0e1e23c242 404
glebiuskv 0:2f0e1e23c242 405
glebiuskv 0:2f0e1e23c242 406 /* Macros for table definitions */
glebiuskv 0:2f0e1e23c242 407 #define MERGE_2STR(a, b) a ## b
glebiuskv 0:2f0e1e23c242 408 #define MKCVTBL(hd, cp) MERGE_2STR(hd, cp)
glebiuskv 0:2f0e1e23c242 409
glebiuskv 0:2f0e1e23c242 410
glebiuskv 0:2f0e1e23c242 411
glebiuskv 0:2f0e1e23c242 412
glebiuskv 0:2f0e1e23c242 413 /*--------------------------------------------------------------------------
glebiuskv 0:2f0e1e23c242 414
glebiuskv 0:2f0e1e23c242 415 Module Private Work Area
glebiuskv 0:2f0e1e23c242 416
glebiuskv 0:2f0e1e23c242 417 ---------------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 418 /* Remark: Variables defined here without initial value shall be guaranteed
glebiuskv 0:2f0e1e23c242 419 / zero/null at start-up. If not, the linker option or start-up routine is
glebiuskv 0:2f0e1e23c242 420 / not compliance with C standard. */
glebiuskv 0:2f0e1e23c242 421
glebiuskv 0:2f0e1e23c242 422 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 423 /* File/Volume controls */
glebiuskv 0:2f0e1e23c242 424 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 425
glebiuskv 0:2f0e1e23c242 426 #if FF_VOLUMES < 1 || FF_VOLUMES > 10
glebiuskv 0:2f0e1e23c242 427 #error Wrong FF_VOLUMES setting
glebiuskv 0:2f0e1e23c242 428 #endif
glebiuskv 0:2f0e1e23c242 429 static FATFS *FatFs[FF_VOLUMES]; /* Pointer to the filesystem objects (logical drives) */
glebiuskv 0:2f0e1e23c242 430 static WORD Fsid; /* File system mount ID */
glebiuskv 0:2f0e1e23c242 431
glebiuskv 0:2f0e1e23c242 432 #if FF_FS_RPATH != 0 && FF_VOLUMES >= 2
glebiuskv 0:2f0e1e23c242 433 static BYTE CurrVol; /* Current drive */
glebiuskv 0:2f0e1e23c242 434 #endif
glebiuskv 0:2f0e1e23c242 435
glebiuskv 0:2f0e1e23c242 436 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 437 static FILESEM Files[FF_FS_LOCK]; /* Open object lock semaphores */
glebiuskv 0:2f0e1e23c242 438 #endif
glebiuskv 0:2f0e1e23c242 439
glebiuskv 0:2f0e1e23c242 440
glebiuskv 0:2f0e1e23c242 441
glebiuskv 0:2f0e1e23c242 442 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 443 /* LFN/Directory working buffer */
glebiuskv 0:2f0e1e23c242 444 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 445
glebiuskv 0:2f0e1e23c242 446 #if FF_USE_LFN == 0 /* Non-LFN configuration */
glebiuskv 0:2f0e1e23c242 447 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 448 #error LFN must be enabled when enable exFAT
glebiuskv 0:2f0e1e23c242 449 #endif
glebiuskv 0:2f0e1e23c242 450 #define DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 451 #define INIT_NAMBUF(fs)
glebiuskv 0:2f0e1e23c242 452 #define FREE_NAMBUF()
glebiuskv 0:2f0e1e23c242 453 #define LEAVE_MKFS(res) return res
glebiuskv 0:2f0e1e23c242 454
glebiuskv 0:2f0e1e23c242 455 #else /* LFN configurations */
glebiuskv 0:2f0e1e23c242 456 #if FF_MAX_LFN < 12 || FF_MAX_LFN > 255
glebiuskv 0:2f0e1e23c242 457 #error Wrong setting of FF_MAX_LFN
glebiuskv 0:2f0e1e23c242 458 #endif
glebiuskv 0:2f0e1e23c242 459 #if FF_LFN_BUF < 12 || FF_SFN_BUF < 12 || FF_LFN_BUF < FF_SFN_BUF
glebiuskv 0:2f0e1e23c242 460 #error Wrong setting of FF_LFN_BUF or FF_SFN_BUF
glebiuskv 0:2f0e1e23c242 461 #endif
glebiuskv 0:2f0e1e23c242 462 #if FF_LFN_UNICODE < 0 || FF_LFN_UNICODE > 2
glebiuskv 0:2f0e1e23c242 463 #error Wrong setting of FF_LFN_UNICODE
glebiuskv 0:2f0e1e23c242 464 #endif
glebiuskv 0:2f0e1e23c242 465 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 */
glebiuskv 0:2f0e1e23c242 466 #define MAXDIRB(nc) ((nc + 44U) / 15 * SZDIRE) /* exFAT: Size of directory entry block scratchpad buffer needed for the name length */
glebiuskv 0:2f0e1e23c242 467
glebiuskv 0:2f0e1e23c242 468 #if FF_USE_LFN == 1 /* LFN enabled with static working buffer */
glebiuskv 0:2f0e1e23c242 469 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 470 static BYTE DirBuf[MAXDIRB(FF_MAX_LFN)]; /* Directory entry block scratchpad buffer */
glebiuskv 0:2f0e1e23c242 471 #endif
glebiuskv 0:2f0e1e23c242 472 static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */
glebiuskv 0:2f0e1e23c242 473 #define DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 474 #define INIT_NAMBUF(fs)
glebiuskv 0:2f0e1e23c242 475 #define FREE_NAMBUF()
glebiuskv 0:2f0e1e23c242 476 #define LEAVE_MKFS(res) return res
glebiuskv 0:2f0e1e23c242 477
glebiuskv 0:2f0e1e23c242 478 #elif FF_USE_LFN == 2 /* LFN enabled with dynamic working buffer on the stack */
glebiuskv 0:2f0e1e23c242 479 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 480 #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; BYTE dbuf[MAXDIRB(FF_MAX_LFN)]; /* LFN working buffer and directory entry block scratchpad buffer */
glebiuskv 0:2f0e1e23c242 481 #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; (fs)->dirbuf = dbuf; }
glebiuskv 0:2f0e1e23c242 482 #define FREE_NAMBUF()
glebiuskv 0:2f0e1e23c242 483 #else
glebiuskv 0:2f0e1e23c242 484 #define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */
glebiuskv 0:2f0e1e23c242 485 #define INIT_NAMBUF(fs) { (fs)->lfnbuf = lbuf; }
glebiuskv 0:2f0e1e23c242 486 #define FREE_NAMBUF()
glebiuskv 0:2f0e1e23c242 487 #endif
glebiuskv 0:2f0e1e23c242 488 #define LEAVE_MKFS(res) return res
glebiuskv 0:2f0e1e23c242 489
glebiuskv 0:2f0e1e23c242 490 #elif FF_USE_LFN == 3 /* LFN enabled with dynamic working buffer on the heap */
glebiuskv 0:2f0e1e23c242 491 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 492 #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer and directory entry block scratchpad buffer */
glebiuskv 0:2f0e1e23c242 493 #define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2 + MAXDIRB(FF_MAX_LFN)); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; (fs)->dirbuf = (BYTE*)(lfn+FF_MAX_LFN+1); }
glebiuskv 0:2f0e1e23c242 494 #define FREE_NAMBUF() ff_memfree(lfn)
glebiuskv 0:2f0e1e23c242 495 #else
glebiuskv 0:2f0e1e23c242 496 #define DEF_NAMBUF WCHAR *lfn; /* Pointer to LFN working buffer */
glebiuskv 0:2f0e1e23c242 497 #define INIT_NAMBUF(fs) { lfn = (WCHAR *)ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; }
glebiuskv 0:2f0e1e23c242 498 #define FREE_NAMBUF() ff_memfree(lfn)
glebiuskv 0:2f0e1e23c242 499 #endif
glebiuskv 0:2f0e1e23c242 500 #define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; }
glebiuskv 0:2f0e1e23c242 501 #define MAX_MALLOC 0x8000
glebiuskv 0:2f0e1e23c242 502
glebiuskv 0:2f0e1e23c242 503 #else
glebiuskv 0:2f0e1e23c242 504 #error Wrong setting of FF_USE_LFN
glebiuskv 0:2f0e1e23c242 505
glebiuskv 0:2f0e1e23c242 506 #endif /* FF_USE_LFN == 1 */
glebiuskv 0:2f0e1e23c242 507 #endif /* FF_USE_LFN == 0 */
glebiuskv 0:2f0e1e23c242 508
glebiuskv 0:2f0e1e23c242 509
glebiuskv 0:2f0e1e23c242 510
glebiuskv 0:2f0e1e23c242 511 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 512 /* Code conversion tables */
glebiuskv 0:2f0e1e23c242 513 /*--------------------------------*/
glebiuskv 0:2f0e1e23c242 514
glebiuskv 0:2f0e1e23c242 515 #if FF_CODE_PAGE == 0 /* Run-time code page configuration */
glebiuskv 0:2f0e1e23c242 516 #define CODEPAGE CodePage
glebiuskv 0:2f0e1e23c242 517 static WORD CodePage; /* Current code page */
glebiuskv 0:2f0e1e23c242 518 static const BYTE *ExCvt, *DbcTbl; /* Pointer to current SBCS up-case table and DBCS code range table below */
glebiuskv 0:2f0e1e23c242 519 static const BYTE Ct437[] = TBL_CT437;
glebiuskv 0:2f0e1e23c242 520 static const BYTE Ct720[] = TBL_CT720;
glebiuskv 0:2f0e1e23c242 521 static const BYTE Ct737[] = TBL_CT737;
glebiuskv 0:2f0e1e23c242 522 static const BYTE Ct771[] = TBL_CT771;
glebiuskv 0:2f0e1e23c242 523 static const BYTE Ct775[] = TBL_CT775;
glebiuskv 0:2f0e1e23c242 524 static const BYTE Ct850[] = TBL_CT850;
glebiuskv 0:2f0e1e23c242 525 static const BYTE Ct852[] = TBL_CT852;
glebiuskv 0:2f0e1e23c242 526 static const BYTE Ct855[] = TBL_CT855;
glebiuskv 0:2f0e1e23c242 527 static const BYTE Ct857[] = TBL_CT857;
glebiuskv 0:2f0e1e23c242 528 static const BYTE Ct860[] = TBL_CT860;
glebiuskv 0:2f0e1e23c242 529 static const BYTE Ct861[] = TBL_CT861;
glebiuskv 0:2f0e1e23c242 530 static const BYTE Ct862[] = TBL_CT862;
glebiuskv 0:2f0e1e23c242 531 static const BYTE Ct863[] = TBL_CT863;
glebiuskv 0:2f0e1e23c242 532 static const BYTE Ct864[] = TBL_CT864;
glebiuskv 0:2f0e1e23c242 533 static const BYTE Ct865[] = TBL_CT865;
glebiuskv 0:2f0e1e23c242 534 static const BYTE Ct866[] = TBL_CT866;
glebiuskv 0:2f0e1e23c242 535 static const BYTE Ct869[] = TBL_CT869;
glebiuskv 0:2f0e1e23c242 536 static const BYTE Dc932[] = TBL_DC932;
glebiuskv 0:2f0e1e23c242 537 static const BYTE Dc936[] = TBL_DC936;
glebiuskv 0:2f0e1e23c242 538 static const BYTE Dc949[] = TBL_DC949;
glebiuskv 0:2f0e1e23c242 539 static const BYTE Dc950[] = TBL_DC950;
glebiuskv 0:2f0e1e23c242 540
glebiuskv 0:2f0e1e23c242 541 #elif FF_CODE_PAGE < 900 /* Static code page configuration (SBCS) */
glebiuskv 0:2f0e1e23c242 542 #define CODEPAGE FF_CODE_PAGE
glebiuskv 0:2f0e1e23c242 543 static const BYTE ExCvt[] = MKCVTBL(TBL_CT, FF_CODE_PAGE);
glebiuskv 0:2f0e1e23c242 544
glebiuskv 0:2f0e1e23c242 545 #else /* Static code page configuration (DBCS) */
glebiuskv 0:2f0e1e23c242 546 #define CODEPAGE FF_CODE_PAGE
glebiuskv 0:2f0e1e23c242 547 static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE);
glebiuskv 0:2f0e1e23c242 548
glebiuskv 0:2f0e1e23c242 549 #endif
glebiuskv 0:2f0e1e23c242 550
glebiuskv 0:2f0e1e23c242 551
glebiuskv 0:2f0e1e23c242 552
glebiuskv 0:2f0e1e23c242 553
glebiuskv 0:2f0e1e23c242 554 /*--------------------------------------------------------------------------
glebiuskv 0:2f0e1e23c242 555
glebiuskv 0:2f0e1e23c242 556 Module Private Functions
glebiuskv 0:2f0e1e23c242 557
glebiuskv 0:2f0e1e23c242 558 ---------------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 559
glebiuskv 0:2f0e1e23c242 560
glebiuskv 0:2f0e1e23c242 561 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 562 /* Load/Store multi-byte word in the FAT structure */
glebiuskv 0:2f0e1e23c242 563 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 564
glebiuskv 0:2f0e1e23c242 565 static
glebiuskv 0:2f0e1e23c242 566 WORD ld_word (const BYTE* ptr) /* Load a 2-byte little-endian word */
glebiuskv 0:2f0e1e23c242 567 {
glebiuskv 0:2f0e1e23c242 568 WORD rv;
glebiuskv 0:2f0e1e23c242 569
glebiuskv 0:2f0e1e23c242 570 rv = ptr[1];
glebiuskv 0:2f0e1e23c242 571 rv = rv << 8 | ptr[0];
glebiuskv 0:2f0e1e23c242 572 return rv;
glebiuskv 0:2f0e1e23c242 573 }
glebiuskv 0:2f0e1e23c242 574
glebiuskv 0:2f0e1e23c242 575 static
glebiuskv 0:2f0e1e23c242 576 DWORD ld_dword (const BYTE* ptr) /* Load a 4-byte little-endian word */
glebiuskv 0:2f0e1e23c242 577 {
glebiuskv 0:2f0e1e23c242 578 DWORD rv;
glebiuskv 0:2f0e1e23c242 579
glebiuskv 0:2f0e1e23c242 580 rv = ptr[3];
glebiuskv 0:2f0e1e23c242 581 rv = rv << 8 | ptr[2];
glebiuskv 0:2f0e1e23c242 582 rv = rv << 8 | ptr[1];
glebiuskv 0:2f0e1e23c242 583 rv = rv << 8 | ptr[0];
glebiuskv 0:2f0e1e23c242 584 return rv;
glebiuskv 0:2f0e1e23c242 585 }
glebiuskv 0:2f0e1e23c242 586
glebiuskv 0:2f0e1e23c242 587 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 588 static
glebiuskv 0:2f0e1e23c242 589 QWORD ld_qword (const BYTE* ptr) /* Load an 8-byte little-endian word */
glebiuskv 0:2f0e1e23c242 590 {
glebiuskv 0:2f0e1e23c242 591 QWORD rv;
glebiuskv 0:2f0e1e23c242 592
glebiuskv 0:2f0e1e23c242 593 rv = ptr[7];
glebiuskv 0:2f0e1e23c242 594 rv = rv << 8 | ptr[6];
glebiuskv 0:2f0e1e23c242 595 rv = rv << 8 | ptr[5];
glebiuskv 0:2f0e1e23c242 596 rv = rv << 8 | ptr[4];
glebiuskv 0:2f0e1e23c242 597 rv = rv << 8 | ptr[3];
glebiuskv 0:2f0e1e23c242 598 rv = rv << 8 | ptr[2];
glebiuskv 0:2f0e1e23c242 599 rv = rv << 8 | ptr[1];
glebiuskv 0:2f0e1e23c242 600 rv = rv << 8 | ptr[0];
glebiuskv 0:2f0e1e23c242 601 return rv;
glebiuskv 0:2f0e1e23c242 602 }
glebiuskv 0:2f0e1e23c242 603 #endif
glebiuskv 0:2f0e1e23c242 604
glebiuskv 0:2f0e1e23c242 605 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 606 static
glebiuskv 0:2f0e1e23c242 607 void st_word (BYTE* ptr, WORD val) /* Store a 2-byte word in little-endian */
glebiuskv 0:2f0e1e23c242 608 {
glebiuskv 0:2f0e1e23c242 609 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 610 *ptr++ = (BYTE)val;
glebiuskv 0:2f0e1e23c242 611 }
glebiuskv 0:2f0e1e23c242 612
glebiuskv 0:2f0e1e23c242 613 static
glebiuskv 0:2f0e1e23c242 614 void st_dword (BYTE* ptr, DWORD val) /* Store a 4-byte word in little-endian */
glebiuskv 0:2f0e1e23c242 615 {
glebiuskv 0:2f0e1e23c242 616 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 617 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 618 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 619 *ptr++ = (BYTE)val;
glebiuskv 0:2f0e1e23c242 620 }
glebiuskv 0:2f0e1e23c242 621
glebiuskv 0:2f0e1e23c242 622 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 623 static
glebiuskv 0:2f0e1e23c242 624 void st_qword (BYTE* ptr, QWORD val) /* Store an 8-byte word in little-endian */
glebiuskv 0:2f0e1e23c242 625 {
glebiuskv 0:2f0e1e23c242 626 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 627 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 628 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 629 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 630 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 631 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 632 *ptr++ = (BYTE)val; val >>= 8;
glebiuskv 0:2f0e1e23c242 633 *ptr++ = (BYTE)val;
glebiuskv 0:2f0e1e23c242 634 }
glebiuskv 0:2f0e1e23c242 635 #endif
glebiuskv 0:2f0e1e23c242 636 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 637
glebiuskv 0:2f0e1e23c242 638
glebiuskv 0:2f0e1e23c242 639
glebiuskv 0:2f0e1e23c242 640 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 641 /* String functions */
glebiuskv 0:2f0e1e23c242 642 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 643
glebiuskv 0:2f0e1e23c242 644 /* Copy memory to memory */
glebiuskv 0:2f0e1e23c242 645 static
glebiuskv 0:2f0e1e23c242 646 void mem_cpy (void* dst, const void* src, UINT cnt)
glebiuskv 0:2f0e1e23c242 647 {
glebiuskv 0:2f0e1e23c242 648 BYTE *d = (BYTE*)dst;
glebiuskv 0:2f0e1e23c242 649 const BYTE *s = (const BYTE*)src;
glebiuskv 0:2f0e1e23c242 650
glebiuskv 0:2f0e1e23c242 651 if (cnt != 0) {
glebiuskv 0:2f0e1e23c242 652 do {
glebiuskv 0:2f0e1e23c242 653 *d++ = *s++;
glebiuskv 0:2f0e1e23c242 654 } while (--cnt);
glebiuskv 0:2f0e1e23c242 655 }
glebiuskv 0:2f0e1e23c242 656 }
glebiuskv 0:2f0e1e23c242 657
glebiuskv 0:2f0e1e23c242 658
glebiuskv 0:2f0e1e23c242 659 /* Fill memory block */
glebiuskv 0:2f0e1e23c242 660 static
glebiuskv 0:2f0e1e23c242 661 void mem_set (void* dst, int val, UINT cnt)
glebiuskv 0:2f0e1e23c242 662 {
glebiuskv 0:2f0e1e23c242 663 BYTE *d = (BYTE*)dst;
glebiuskv 0:2f0e1e23c242 664
glebiuskv 0:2f0e1e23c242 665 do {
glebiuskv 0:2f0e1e23c242 666 *d++ = (BYTE)val;
glebiuskv 0:2f0e1e23c242 667 } while (--cnt);
glebiuskv 0:2f0e1e23c242 668 }
glebiuskv 0:2f0e1e23c242 669
glebiuskv 0:2f0e1e23c242 670
glebiuskv 0:2f0e1e23c242 671 /* Compare memory block */
glebiuskv 0:2f0e1e23c242 672 static
glebiuskv 0:2f0e1e23c242 673 int mem_cmp (const void* dst, const void* src, UINT cnt) /* ZR:same, NZ:different */
glebiuskv 0:2f0e1e23c242 674 {
glebiuskv 0:2f0e1e23c242 675 const BYTE *d = (const BYTE *)dst, *s = (const BYTE *)src;
glebiuskv 0:2f0e1e23c242 676 int r = 0;
glebiuskv 0:2f0e1e23c242 677
glebiuskv 0:2f0e1e23c242 678 do {
glebiuskv 0:2f0e1e23c242 679 r = *d++ - *s++;
glebiuskv 0:2f0e1e23c242 680 } while (--cnt && r == 0);
glebiuskv 0:2f0e1e23c242 681
glebiuskv 0:2f0e1e23c242 682 return r;
glebiuskv 0:2f0e1e23c242 683 }
glebiuskv 0:2f0e1e23c242 684
glebiuskv 0:2f0e1e23c242 685
glebiuskv 0:2f0e1e23c242 686 /* Check if chr is contained in the string */
glebiuskv 0:2f0e1e23c242 687 static
glebiuskv 0:2f0e1e23c242 688 int chk_chr (const char* str, int chr) /* NZ:contained, ZR:not contained */
glebiuskv 0:2f0e1e23c242 689 {
glebiuskv 0:2f0e1e23c242 690 while (*str && *str != chr) str++;
glebiuskv 0:2f0e1e23c242 691 return *str;
glebiuskv 0:2f0e1e23c242 692 }
glebiuskv 0:2f0e1e23c242 693
glebiuskv 0:2f0e1e23c242 694
glebiuskv 0:2f0e1e23c242 695 /* Test if the character is DBC 1st byte */
glebiuskv 0:2f0e1e23c242 696 static
glebiuskv 0:2f0e1e23c242 697 int dbc_1st (BYTE c)
glebiuskv 0:2f0e1e23c242 698 {
glebiuskv 0:2f0e1e23c242 699 #if FF_CODE_PAGE == 0 /* Variable code page */
glebiuskv 0:2f0e1e23c242 700 if (DbcTbl && c >= DbcTbl[0]) {
glebiuskv 0:2f0e1e23c242 701 if (c <= DbcTbl[1]) return 1; /* 1st byte range 1 */
glebiuskv 0:2f0e1e23c242 702 if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1; /* 1st byte range 2 */
glebiuskv 0:2f0e1e23c242 703 }
glebiuskv 0:2f0e1e23c242 704 #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */
glebiuskv 0:2f0e1e23c242 705 if (c >= DbcTbl[0]) {
glebiuskv 0:2f0e1e23c242 706 if (c <= DbcTbl[1]) return 1;
glebiuskv 0:2f0e1e23c242 707 if (c >= DbcTbl[2] && c <= DbcTbl[3]) return 1;
glebiuskv 0:2f0e1e23c242 708 }
glebiuskv 0:2f0e1e23c242 709 #else /* SBCS fixed code page */
glebiuskv 0:2f0e1e23c242 710 if (c != 0) return 0; /* Always false */
glebiuskv 0:2f0e1e23c242 711 #endif
glebiuskv 0:2f0e1e23c242 712 return 0;
glebiuskv 0:2f0e1e23c242 713 }
glebiuskv 0:2f0e1e23c242 714
glebiuskv 0:2f0e1e23c242 715
glebiuskv 0:2f0e1e23c242 716 /* Test if the character is DBC 2nd byte */
glebiuskv 0:2f0e1e23c242 717 static
glebiuskv 0:2f0e1e23c242 718 int dbc_2nd (BYTE c)
glebiuskv 0:2f0e1e23c242 719 {
glebiuskv 0:2f0e1e23c242 720 #if FF_CODE_PAGE == 0 /* Variable code page */
glebiuskv 0:2f0e1e23c242 721 if (DbcTbl && c >= DbcTbl[4]) {
glebiuskv 0:2f0e1e23c242 722 if (c <= DbcTbl[5]) return 1; /* 2nd byte range 1 */
glebiuskv 0:2f0e1e23c242 723 if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1; /* 2nd byte range 2 */
glebiuskv 0:2f0e1e23c242 724 if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1; /* 2nd byte range 3 */
glebiuskv 0:2f0e1e23c242 725 }
glebiuskv 0:2f0e1e23c242 726 #elif FF_CODE_PAGE >= 900 /* DBCS fixed code page */
glebiuskv 0:2f0e1e23c242 727 if (c >= DbcTbl[4]) {
glebiuskv 0:2f0e1e23c242 728 if (c <= DbcTbl[5]) return 1;
glebiuskv 0:2f0e1e23c242 729 if (c >= DbcTbl[6] && c <= DbcTbl[7]) return 1;
glebiuskv 0:2f0e1e23c242 730 if (c >= DbcTbl[8] && c <= DbcTbl[9]) return 1;
glebiuskv 0:2f0e1e23c242 731 }
glebiuskv 0:2f0e1e23c242 732 #else /* SBCS fixed code page */
glebiuskv 0:2f0e1e23c242 733 if (c != 0) return 0; /* Always false */
glebiuskv 0:2f0e1e23c242 734 #endif
glebiuskv 0:2f0e1e23c242 735 return 0;
glebiuskv 0:2f0e1e23c242 736 }
glebiuskv 0:2f0e1e23c242 737
glebiuskv 0:2f0e1e23c242 738
glebiuskv 0:2f0e1e23c242 739 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 740
glebiuskv 0:2f0e1e23c242 741 /* Get a character from TCHAR string in defined API encodeing */
glebiuskv 0:2f0e1e23c242 742 static
glebiuskv 0:2f0e1e23c242 743 DWORD tchar2uni ( /* Returns character in UTF-16 encoding (>=0x10000 on double encoding unit, 0xFFFFFFFF on decode error) */
glebiuskv 0:2f0e1e23c242 744 const TCHAR** str /* Pointer to pointer to TCHAR string in configured encoding */
glebiuskv 0:2f0e1e23c242 745 )
glebiuskv 0:2f0e1e23c242 746 {
glebiuskv 0:2f0e1e23c242 747 DWORD uc;
glebiuskv 0:2f0e1e23c242 748 const TCHAR *p = *str;
glebiuskv 0:2f0e1e23c242 749
glebiuskv 0:2f0e1e23c242 750 #if FF_LFN_UNICODE == 1 /* UTF-16 input */
glebiuskv 0:2f0e1e23c242 751 WCHAR wc;
glebiuskv 0:2f0e1e23c242 752
glebiuskv 0:2f0e1e23c242 753 uc = *p++;
glebiuskv 0:2f0e1e23c242 754 if (IsSurrogate(uc)) { /* Surrogate? */
glebiuskv 0:2f0e1e23c242 755 wc = *p++; /* Get low surrogate */
glebiuskv 0:2f0e1e23c242 756 if (!IsSurrogateH(uc) || !IsSurrogateL(wc)) return 0xFFFFFFFF; /* Wrong surrogate? */
glebiuskv 0:2f0e1e23c242 757 uc = uc << 16 | wc;
glebiuskv 0:2f0e1e23c242 758 }
glebiuskv 0:2f0e1e23c242 759
glebiuskv 0:2f0e1e23c242 760 #elif FF_LFN_UNICODE == 2 /* UTF-8 input */
glebiuskv 0:2f0e1e23c242 761 BYTE b;
glebiuskv 0:2f0e1e23c242 762 int nf;
glebiuskv 0:2f0e1e23c242 763
glebiuskv 0:2f0e1e23c242 764 uc = (BYTE)*p++; /* Get a byte */
glebiuskv 0:2f0e1e23c242 765 if (uc & 0x80) { /* Multiple byte code? */
glebiuskv 0:2f0e1e23c242 766 if ((uc & 0xE0) == 0xC0) { /* 2-byte sequence? */
glebiuskv 0:2f0e1e23c242 767 uc &= 0x1F; nf = 1;
glebiuskv 0:2f0e1e23c242 768 } else {
glebiuskv 0:2f0e1e23c242 769 if ((uc & 0xF0) == 0xE0) { /* 3-byte sequence? */
glebiuskv 0:2f0e1e23c242 770 uc &= 0x0F; nf = 2;
glebiuskv 0:2f0e1e23c242 771 } else {
glebiuskv 0:2f0e1e23c242 772 if ((uc & 0xF8) == 0xF0) { /* 4-byte sequence? */
glebiuskv 0:2f0e1e23c242 773 uc &= 0x07; nf = 3;
glebiuskv 0:2f0e1e23c242 774 } else { /* Wrong sequence */
glebiuskv 0:2f0e1e23c242 775 return 0xFFFFFFFF;
glebiuskv 0:2f0e1e23c242 776 }
glebiuskv 0:2f0e1e23c242 777 }
glebiuskv 0:2f0e1e23c242 778 }
glebiuskv 0:2f0e1e23c242 779 do { /* Get trailing bytes */
glebiuskv 0:2f0e1e23c242 780 b = (BYTE)*p++;
glebiuskv 0:2f0e1e23c242 781 if ((b & 0xC0) != 0x80) return 0xFFFFFFFF; /* Wrong sequence? */
glebiuskv 0:2f0e1e23c242 782 uc = uc << 6 | (b & 0x3F);
glebiuskv 0:2f0e1e23c242 783 } while (--nf != 0);
glebiuskv 0:2f0e1e23c242 784 if (uc < 0x80 || IsSurrogate(uc) || uc >= 0x110000) return 0xFFFFFFFF; /* Wrong code? */
glebiuskv 0:2f0e1e23c242 785 if (uc >= 0x10000) uc = 0xD800DC00 | ((uc - 0x10000) << 6 & 0x3FF0000) | (uc & 0x3FF); /* Make a surrogate pair if needed */
glebiuskv 0:2f0e1e23c242 786 }
glebiuskv 0:2f0e1e23c242 787
glebiuskv 0:2f0e1e23c242 788 #else /* ANSI/OEM input */
glebiuskv 0:2f0e1e23c242 789 BYTE b;
glebiuskv 0:2f0e1e23c242 790 WCHAR wc;
glebiuskv 0:2f0e1e23c242 791
glebiuskv 0:2f0e1e23c242 792 wc = (BYTE)*p++; /* Get a byte */
glebiuskv 0:2f0e1e23c242 793 if (dbc_1st((BYTE)wc)) { /* Is it a DBC 1st byte? */
glebiuskv 0:2f0e1e23c242 794 b = (BYTE)*p++; /* Get 2nd byte */
glebiuskv 0:2f0e1e23c242 795 if (!dbc_2nd(b)) return 0xFFFFFFFF; /* Invalid code? */
glebiuskv 0:2f0e1e23c242 796 wc = (wc << 8) + b; /* Make a DBC */
glebiuskv 0:2f0e1e23c242 797 }
glebiuskv 0:2f0e1e23c242 798 if (wc != 0) {
glebiuskv 0:2f0e1e23c242 799 wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM ==> Unicode */
glebiuskv 0:2f0e1e23c242 800 if (wc == 0) return 0xFFFFFFFF; /* Invalid code? */
glebiuskv 0:2f0e1e23c242 801 }
glebiuskv 0:2f0e1e23c242 802 uc = wc;
glebiuskv 0:2f0e1e23c242 803
glebiuskv 0:2f0e1e23c242 804 #endif
glebiuskv 0:2f0e1e23c242 805 *str = p; /* Next read pointer */
glebiuskv 0:2f0e1e23c242 806 return uc;
glebiuskv 0:2f0e1e23c242 807 }
glebiuskv 0:2f0e1e23c242 808
glebiuskv 0:2f0e1e23c242 809
glebiuskv 0:2f0e1e23c242 810 /* Output a TCHAR string in defined API encoding */
glebiuskv 0:2f0e1e23c242 811 static
glebiuskv 0:2f0e1e23c242 812 BYTE put_utf ( /* Returns number of encoding units written (0:buffer overflow or wrong encoding) */
glebiuskv 0:2f0e1e23c242 813 DWORD chr, /* UTF-16 encoded character (Double encoding unit char if >=0x10000) */
glebiuskv 0:2f0e1e23c242 814 TCHAR* buf, /* Output buffer */
glebiuskv 0:2f0e1e23c242 815 UINT szb /* Size of the buffer */
glebiuskv 0:2f0e1e23c242 816 )
glebiuskv 0:2f0e1e23c242 817 {
glebiuskv 0:2f0e1e23c242 818 #if FF_LFN_UNICODE == 1 /* UTF-16 output */
glebiuskv 0:2f0e1e23c242 819 WCHAR hs, wc;
glebiuskv 0:2f0e1e23c242 820
glebiuskv 0:2f0e1e23c242 821 hs = (WCHAR)(chr >> 16);
glebiuskv 0:2f0e1e23c242 822 wc = (WCHAR)chr;
glebiuskv 0:2f0e1e23c242 823 if (hs == 0) { /* Single encoding unit? */
glebiuskv 0:2f0e1e23c242 824 if (szb < 1 || IsSurrogate(wc)) return 0; /* Buffer overflow or wrong code? */
glebiuskv 0:2f0e1e23c242 825 *buf = wc;
glebiuskv 0:2f0e1e23c242 826 return 1;
glebiuskv 0:2f0e1e23c242 827 }
glebiuskv 0:2f0e1e23c242 828 if (szb < 2 || !IsSurrogateH(hs) || !IsSurrogateL(wc)) return 0; /* Buffer overflow or wrong surrogate? */
glebiuskv 0:2f0e1e23c242 829 *buf++ = hs;
glebiuskv 0:2f0e1e23c242 830 *buf++ = wc;
glebiuskv 0:2f0e1e23c242 831 return 2;
glebiuskv 0:2f0e1e23c242 832
glebiuskv 0:2f0e1e23c242 833 #elif FF_LFN_UNICODE == 2 /* UTF-8 output */
glebiuskv 0:2f0e1e23c242 834 DWORD hc;
glebiuskv 0:2f0e1e23c242 835
glebiuskv 0:2f0e1e23c242 836 if (chr < 0x80) { /* Single byte code? */
glebiuskv 0:2f0e1e23c242 837 if (szb < 1) return 0; /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 838 *buf = (TCHAR)chr;
glebiuskv 0:2f0e1e23c242 839 return 1;
glebiuskv 0:2f0e1e23c242 840 }
glebiuskv 0:2f0e1e23c242 841 if (chr < 0x800) { /* 2-byte sequence? */
glebiuskv 0:2f0e1e23c242 842 if (szb < 2) return 0; /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 843 *buf++ = (TCHAR)(0xC0 | (chr >> 6 & 0x1F));
glebiuskv 0:2f0e1e23c242 844 *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 845 return 2;
glebiuskv 0:2f0e1e23c242 846 }
glebiuskv 0:2f0e1e23c242 847 if (chr < 0x10000) { /* 3-byte sequence? */
glebiuskv 0:2f0e1e23c242 848 if (szb < 3 || IsSurrogate(chr)) return 0; /* Buffer overflow or wrong code? */
glebiuskv 0:2f0e1e23c242 849 *buf++ = (TCHAR)(0xE0 | (chr >> 12 & 0x0F));
glebiuskv 0:2f0e1e23c242 850 *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));
glebiuskv 0:2f0e1e23c242 851 *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 852 return 3;
glebiuskv 0:2f0e1e23c242 853 }
glebiuskv 0:2f0e1e23c242 854 /* 4-byte sequence */
glebiuskv 0:2f0e1e23c242 855 if (szb < 4) return 0; /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 856 hc = ((chr & 0xFFFF0000) - 0xD8000000) >> 6; /* Get high 10 bits */
glebiuskv 0:2f0e1e23c242 857 chr = (chr & 0xFFFF) - 0xDC00; /* Get low 10 bits */
glebiuskv 0:2f0e1e23c242 858 if (hc >= 0x100000 || chr >= 0x400) return 0; /* Wrong surrogate? */
glebiuskv 0:2f0e1e23c242 859 chr = (hc | chr) + 0x10000;
glebiuskv 0:2f0e1e23c242 860 *buf++ = (TCHAR)(0xF0 | (chr >> 18 & 0x07));
glebiuskv 0:2f0e1e23c242 861 *buf++ = (TCHAR)(0x80 | (chr >> 12 & 0x3F));
glebiuskv 0:2f0e1e23c242 862 *buf++ = (TCHAR)(0x80 | (chr >> 6 & 0x3F));
glebiuskv 0:2f0e1e23c242 863 *buf++ = (TCHAR)(0x80 | (chr >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 864 return 4;
glebiuskv 0:2f0e1e23c242 865
glebiuskv 0:2f0e1e23c242 866 #else /* ANSI/OEM output */
glebiuskv 0:2f0e1e23c242 867 WCHAR wc;
glebiuskv 0:2f0e1e23c242 868
glebiuskv 0:2f0e1e23c242 869 wc = ff_uni2oem(chr, CODEPAGE);
glebiuskv 0:2f0e1e23c242 870 if (wc >= 0x100) { /* Is this a DBC? */
glebiuskv 0:2f0e1e23c242 871 if (szb < 2) return 0;
glebiuskv 0:2f0e1e23c242 872 *buf++ = (char)(wc >> 8); /* Store DBC 1st byte */
glebiuskv 0:2f0e1e23c242 873 *buf++ = (TCHAR)wc; /* Store DBC 2nd byte */
glebiuskv 0:2f0e1e23c242 874 return 2;
glebiuskv 0:2f0e1e23c242 875 }
glebiuskv 0:2f0e1e23c242 876 if (wc == 0 || szb < 1) return 0; /* Invalid char or buffer overflow? */
glebiuskv 0:2f0e1e23c242 877 *buf++ = (TCHAR)wc; /* Store the character */
glebiuskv 0:2f0e1e23c242 878 return 1;
glebiuskv 0:2f0e1e23c242 879 #endif
glebiuskv 0:2f0e1e23c242 880 }
glebiuskv 0:2f0e1e23c242 881 #endif /* FF_USE_LFN */
glebiuskv 0:2f0e1e23c242 882
glebiuskv 0:2f0e1e23c242 883
glebiuskv 0:2f0e1e23c242 884 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 885 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 886 /* Request/Release grant to access the volume */
glebiuskv 0:2f0e1e23c242 887 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 888 static
glebiuskv 0:2f0e1e23c242 889 int lock_fs ( /* 1:Ok, 0:timeout */
glebiuskv 0:2f0e1e23c242 890 FATFS* fs /* Filesystem object */
glebiuskv 0:2f0e1e23c242 891 )
glebiuskv 0:2f0e1e23c242 892 {
glebiuskv 0:2f0e1e23c242 893 return ff_req_grant(fs->sobj);
glebiuskv 0:2f0e1e23c242 894 }
glebiuskv 0:2f0e1e23c242 895
glebiuskv 0:2f0e1e23c242 896
glebiuskv 0:2f0e1e23c242 897 static
glebiuskv 0:2f0e1e23c242 898 void unlock_fs (
glebiuskv 0:2f0e1e23c242 899 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 900 FRESULT res /* Result code to be returned */
glebiuskv 0:2f0e1e23c242 901 )
glebiuskv 0:2f0e1e23c242 902 {
glebiuskv 0:2f0e1e23c242 903 if (fs && res != FR_NOT_ENABLED && res != FR_INVALID_DRIVE && res != FR_TIMEOUT) {
glebiuskv 0:2f0e1e23c242 904 ff_rel_grant(fs->sobj);
glebiuskv 0:2f0e1e23c242 905 }
glebiuskv 0:2f0e1e23c242 906 }
glebiuskv 0:2f0e1e23c242 907
glebiuskv 0:2f0e1e23c242 908 #endif
glebiuskv 0:2f0e1e23c242 909
glebiuskv 0:2f0e1e23c242 910
glebiuskv 0:2f0e1e23c242 911
glebiuskv 0:2f0e1e23c242 912 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 913 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 914 /* File lock control functions */
glebiuskv 0:2f0e1e23c242 915 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 916
glebiuskv 0:2f0e1e23c242 917 static
glebiuskv 0:2f0e1e23c242 918 FRESULT chk_lock ( /* Check if the file can be accessed */
glebiuskv 0:2f0e1e23c242 919 FATFS_DIR* dp, /* Directory object pointing the file to be checked */
glebiuskv 0:2f0e1e23c242 920 int acc /* Desired access type (0:Read mode open, 1:Write mode open, 2:Delete or rename) */
glebiuskv 0:2f0e1e23c242 921 )
glebiuskv 0:2f0e1e23c242 922 {
glebiuskv 0:2f0e1e23c242 923 UINT i, be;
glebiuskv 0:2f0e1e23c242 924
glebiuskv 0:2f0e1e23c242 925 /* Search open object table for the object */
glebiuskv 0:2f0e1e23c242 926 be = 0;
glebiuskv 0:2f0e1e23c242 927 for (i = 0; i < FF_FS_LOCK; i++) {
glebiuskv 0:2f0e1e23c242 928 if (Files[i].fs) { /* Existing entry */
glebiuskv 0:2f0e1e23c242 929 if (Files[i].fs == dp->obj.fs && /* Check if the object matches with an open object */
glebiuskv 0:2f0e1e23c242 930 Files[i].clu == dp->obj.sclust &&
glebiuskv 0:2f0e1e23c242 931 Files[i].ofs == dp->dptr) break;
glebiuskv 0:2f0e1e23c242 932 } else { /* Blank entry */
glebiuskv 0:2f0e1e23c242 933 be = 1;
glebiuskv 0:2f0e1e23c242 934 }
glebiuskv 0:2f0e1e23c242 935 }
glebiuskv 0:2f0e1e23c242 936 if (i == FF_FS_LOCK) { /* The object has not been opened */
glebiuskv 0:2f0e1e23c242 937 return (!be && acc != 2) ? FR_TOO_MANY_OPEN_FILES : FR_OK; /* Is there a blank entry for new object? */
glebiuskv 0:2f0e1e23c242 938 }
glebiuskv 0:2f0e1e23c242 939
glebiuskv 0:2f0e1e23c242 940 /* The object was opened. Reject any open against writing file and all write mode open */
glebiuskv 0:2f0e1e23c242 941 return (acc != 0 || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
glebiuskv 0:2f0e1e23c242 942 }
glebiuskv 0:2f0e1e23c242 943
glebiuskv 0:2f0e1e23c242 944
glebiuskv 0:2f0e1e23c242 945 static
glebiuskv 0:2f0e1e23c242 946 int enq_lock (void) /* Check if an entry is available for a new object */
glebiuskv 0:2f0e1e23c242 947 {
glebiuskv 0:2f0e1e23c242 948 UINT i;
glebiuskv 0:2f0e1e23c242 949
glebiuskv 0:2f0e1e23c242 950 for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ;
glebiuskv 0:2f0e1e23c242 951 return (i == FF_FS_LOCK) ? 0 : 1;
glebiuskv 0:2f0e1e23c242 952 }
glebiuskv 0:2f0e1e23c242 953
glebiuskv 0:2f0e1e23c242 954
glebiuskv 0:2f0e1e23c242 955 static
glebiuskv 0:2f0e1e23c242 956 UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
glebiuskv 0:2f0e1e23c242 957 FATFS_DIR* dp,/* Directory object pointing the file to register or increment */
glebiuskv 0:2f0e1e23c242 958 int acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
glebiuskv 0:2f0e1e23c242 959 )
glebiuskv 0:2f0e1e23c242 960 {
glebiuskv 0:2f0e1e23c242 961 UINT i;
glebiuskv 0:2f0e1e23c242 962
glebiuskv 0:2f0e1e23c242 963
glebiuskv 0:2f0e1e23c242 964 for (i = 0; i < FF_FS_LOCK; i++) { /* Find the object */
glebiuskv 0:2f0e1e23c242 965 if (Files[i].fs == dp->obj.fs &&
glebiuskv 0:2f0e1e23c242 966 Files[i].clu == dp->obj.sclust &&
glebiuskv 0:2f0e1e23c242 967 Files[i].ofs == dp->dptr) break;
glebiuskv 0:2f0e1e23c242 968 }
glebiuskv 0:2f0e1e23c242 969
glebiuskv 0:2f0e1e23c242 970 if (i == FF_FS_LOCK) { /* Not opened. Register it as new. */
glebiuskv 0:2f0e1e23c242 971 for (i = 0; i < FF_FS_LOCK && Files[i].fs; i++) ;
glebiuskv 0:2f0e1e23c242 972 if (i == FF_FS_LOCK) return 0; /* No free entry to register (int err) */
glebiuskv 0:2f0e1e23c242 973 Files[i].fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 974 Files[i].clu = dp->obj.sclust;
glebiuskv 0:2f0e1e23c242 975 Files[i].ofs = dp->dptr;
glebiuskv 0:2f0e1e23c242 976 Files[i].ctr = 0;
glebiuskv 0:2f0e1e23c242 977 }
glebiuskv 0:2f0e1e23c242 978
glebiuskv 0:2f0e1e23c242 979 if (acc >= 1 && Files[i].ctr) return 0; /* Access violation (int err) */
glebiuskv 0:2f0e1e23c242 980
glebiuskv 0:2f0e1e23c242 981 Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
glebiuskv 0:2f0e1e23c242 982
glebiuskv 0:2f0e1e23c242 983 return i + 1; /* Index number origin from 1 */
glebiuskv 0:2f0e1e23c242 984 }
glebiuskv 0:2f0e1e23c242 985
glebiuskv 0:2f0e1e23c242 986
glebiuskv 0:2f0e1e23c242 987 static
glebiuskv 0:2f0e1e23c242 988 FRESULT dec_lock ( /* Decrement object open counter */
glebiuskv 0:2f0e1e23c242 989 UINT i /* Semaphore index (1..) */
glebiuskv 0:2f0e1e23c242 990 )
glebiuskv 0:2f0e1e23c242 991 {
glebiuskv 0:2f0e1e23c242 992 WORD n;
glebiuskv 0:2f0e1e23c242 993 FRESULT res;
glebiuskv 0:2f0e1e23c242 994
glebiuskv 0:2f0e1e23c242 995
glebiuskv 0:2f0e1e23c242 996 if (--i < FF_FS_LOCK) { /* Index number origin from 0 */
glebiuskv 0:2f0e1e23c242 997 n = Files[i].ctr;
glebiuskv 0:2f0e1e23c242 998 if (n == 0x100) n = 0; /* If write mode open, delete the entry */
glebiuskv 0:2f0e1e23c242 999 if (n > 0) n--; /* Decrement read mode open count */
glebiuskv 0:2f0e1e23c242 1000 Files[i].ctr = n;
glebiuskv 0:2f0e1e23c242 1001 if (n == 0) Files[i].fs = 0; /* Delete the entry if open count gets zero */
glebiuskv 0:2f0e1e23c242 1002 res = FR_OK;
glebiuskv 0:2f0e1e23c242 1003 } else {
glebiuskv 0:2f0e1e23c242 1004 res = FR_INT_ERR; /* Invalid index nunber */
glebiuskv 0:2f0e1e23c242 1005 }
glebiuskv 0:2f0e1e23c242 1006 return res;
glebiuskv 0:2f0e1e23c242 1007 }
glebiuskv 0:2f0e1e23c242 1008
glebiuskv 0:2f0e1e23c242 1009
glebiuskv 0:2f0e1e23c242 1010 static
glebiuskv 0:2f0e1e23c242 1011 void clear_lock ( /* Clear lock entries of the volume */
glebiuskv 0:2f0e1e23c242 1012 FATFS *fs
glebiuskv 0:2f0e1e23c242 1013 )
glebiuskv 0:2f0e1e23c242 1014 {
glebiuskv 0:2f0e1e23c242 1015 UINT i;
glebiuskv 0:2f0e1e23c242 1016
glebiuskv 0:2f0e1e23c242 1017 for (i = 0; i < FF_FS_LOCK; i++) {
glebiuskv 0:2f0e1e23c242 1018 if (Files[i].fs == fs) Files[i].fs = 0;
glebiuskv 0:2f0e1e23c242 1019 }
glebiuskv 0:2f0e1e23c242 1020 }
glebiuskv 0:2f0e1e23c242 1021
glebiuskv 0:2f0e1e23c242 1022 #endif /* FF_FS_LOCK != 0 */
glebiuskv 0:2f0e1e23c242 1023
glebiuskv 0:2f0e1e23c242 1024
glebiuskv 0:2f0e1e23c242 1025
glebiuskv 0:2f0e1e23c242 1026 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1027 /* Move/Flush disk access window in the filesystem object */
glebiuskv 0:2f0e1e23c242 1028 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1029 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1030 static
glebiuskv 0:2f0e1e23c242 1031 FRESULT sync_window ( /* Returns FR_OK or FR_DISK_ERR */
glebiuskv 0:2f0e1e23c242 1032 FATFS* fs /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1033 )
glebiuskv 0:2f0e1e23c242 1034 {
glebiuskv 0:2f0e1e23c242 1035 FRESULT res = FR_OK;
glebiuskv 0:2f0e1e23c242 1036
glebiuskv 0:2f0e1e23c242 1037
glebiuskv 0:2f0e1e23c242 1038 if (fs->wflag) { /* Is the disk access window dirty */
glebiuskv 0:2f0e1e23c242 1039 if (disk_write(fs->pdrv, fs->win, fs->winsect, 1) == RES_OK) { /* Write back the window */
glebiuskv 0:2f0e1e23c242 1040 fs->wflag = 0; /* Clear window dirty flag */
glebiuskv 0:2f0e1e23c242 1041 if (fs->winsect - fs->fatbase < fs->fsize) { /* Is it in the 1st FAT? */
glebiuskv 0:2f0e1e23c242 1042 if (fs->n_fats == 2) disk_write(fs->pdrv, fs->win, fs->winsect + fs->fsize, 1); /* Reflect it to 2nd FAT if needed */
glebiuskv 0:2f0e1e23c242 1043 }
glebiuskv 0:2f0e1e23c242 1044 } else {
glebiuskv 0:2f0e1e23c242 1045 res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1046 }
glebiuskv 0:2f0e1e23c242 1047 }
glebiuskv 0:2f0e1e23c242 1048 return res;
glebiuskv 0:2f0e1e23c242 1049 }
glebiuskv 0:2f0e1e23c242 1050 #endif
glebiuskv 0:2f0e1e23c242 1051
glebiuskv 0:2f0e1e23c242 1052
glebiuskv 0:2f0e1e23c242 1053 static
glebiuskv 0:2f0e1e23c242 1054 FRESULT move_window ( /* Returns FR_OK or FR_DISK_ERR */
glebiuskv 0:2f0e1e23c242 1055 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1056 DWORD sector /* Sector number to make appearance in the fs->win[] */
glebiuskv 0:2f0e1e23c242 1057 )
glebiuskv 0:2f0e1e23c242 1058 {
glebiuskv 0:2f0e1e23c242 1059 FRESULT res = FR_OK;
glebiuskv 0:2f0e1e23c242 1060
glebiuskv 0:2f0e1e23c242 1061
glebiuskv 0:2f0e1e23c242 1062 if (sector != fs->winsect) { /* Window offset changed? */
glebiuskv 0:2f0e1e23c242 1063 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1064 res = sync_window(fs); /* Write-back changes */
glebiuskv 0:2f0e1e23c242 1065 #endif
glebiuskv 0:2f0e1e23c242 1066 if (res == FR_OK) { /* Fill sector window with new data */
glebiuskv 0:2f0e1e23c242 1067 if (disk_read(fs->pdrv, fs->win, sector, 1) != RES_OK) {
glebiuskv 0:2f0e1e23c242 1068 sector = 0xFFFFFFFF; /* Invalidate window if read data is not valid */
glebiuskv 0:2f0e1e23c242 1069 res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1070 }
glebiuskv 0:2f0e1e23c242 1071 fs->winsect = sector;
glebiuskv 0:2f0e1e23c242 1072 }
glebiuskv 0:2f0e1e23c242 1073 }
glebiuskv 0:2f0e1e23c242 1074 return res;
glebiuskv 0:2f0e1e23c242 1075 }
glebiuskv 0:2f0e1e23c242 1076
glebiuskv 0:2f0e1e23c242 1077
glebiuskv 0:2f0e1e23c242 1078
glebiuskv 0:2f0e1e23c242 1079
glebiuskv 0:2f0e1e23c242 1080 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1081 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1082 /* Synchronize filesystem and data on the storage */
glebiuskv 0:2f0e1e23c242 1083 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1084
glebiuskv 0:2f0e1e23c242 1085 static
glebiuskv 0:2f0e1e23c242 1086 FRESULT sync_fs ( /* Returns FR_OK or FR_DISK_ERR */
glebiuskv 0:2f0e1e23c242 1087 FATFS* fs /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1088 )
glebiuskv 0:2f0e1e23c242 1089 {
glebiuskv 0:2f0e1e23c242 1090 FRESULT res;
glebiuskv 0:2f0e1e23c242 1091
glebiuskv 0:2f0e1e23c242 1092
glebiuskv 0:2f0e1e23c242 1093 res = sync_window(fs);
glebiuskv 0:2f0e1e23c242 1094 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 1095 if (fs->fs_type == FS_FAT32 && fs->fsi_flag == 1) { /* FAT32: Update FSInfo sector if needed */
glebiuskv 0:2f0e1e23c242 1096 /* Create FSInfo structure */
glebiuskv 0:2f0e1e23c242 1097 mem_set(fs->win, 0, SS(fs));
glebiuskv 0:2f0e1e23c242 1098 st_word(fs->win + BS_55AA, 0xAA55);
glebiuskv 0:2f0e1e23c242 1099 st_dword(fs->win + FSI_LeadSig, 0x41615252);
glebiuskv 0:2f0e1e23c242 1100 st_dword(fs->win + FSI_StrucSig, 0x61417272);
glebiuskv 0:2f0e1e23c242 1101 st_dword(fs->win + FSI_Free_Count, fs->free_clst);
glebiuskv 0:2f0e1e23c242 1102 st_dword(fs->win + FSI_Nxt_Free, fs->last_clst);
glebiuskv 0:2f0e1e23c242 1103 /* Write it into the FSInfo sector */
glebiuskv 0:2f0e1e23c242 1104 fs->winsect = fs->volbase + 1;
glebiuskv 0:2f0e1e23c242 1105 disk_write(fs->pdrv, fs->win, fs->winsect, 1);
glebiuskv 0:2f0e1e23c242 1106 fs->fsi_flag = 0;
glebiuskv 0:2f0e1e23c242 1107 }
glebiuskv 0:2f0e1e23c242 1108 /* Make sure that no pending write process in the lower layer */
glebiuskv 0:2f0e1e23c242 1109 if (disk_ioctl(fs->pdrv, CTRL_SYNC, 0) != RES_OK) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1110 }
glebiuskv 0:2f0e1e23c242 1111
glebiuskv 0:2f0e1e23c242 1112 return res;
glebiuskv 0:2f0e1e23c242 1113 }
glebiuskv 0:2f0e1e23c242 1114
glebiuskv 0:2f0e1e23c242 1115 #endif
glebiuskv 0:2f0e1e23c242 1116
glebiuskv 0:2f0e1e23c242 1117
glebiuskv 0:2f0e1e23c242 1118
glebiuskv 0:2f0e1e23c242 1119 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1120 /* Get physical sector number from cluster number */
glebiuskv 0:2f0e1e23c242 1121 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1122
glebiuskv 0:2f0e1e23c242 1123 static
glebiuskv 0:2f0e1e23c242 1124 DWORD clst2sect ( /* !=0:Sector number, 0:Failed (invalid cluster#) */
glebiuskv 0:2f0e1e23c242 1125 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1126 DWORD clst /* Cluster# to be converted */
glebiuskv 0:2f0e1e23c242 1127 )
glebiuskv 0:2f0e1e23c242 1128 {
glebiuskv 0:2f0e1e23c242 1129 clst -= 2; /* Cluster number is origin from 2 */
glebiuskv 0:2f0e1e23c242 1130 if (clst >= fs->n_fatent - 2) return 0; /* Is it invalid cluster number? */
glebiuskv 0:2f0e1e23c242 1131 return fs->database + fs->csize * clst; /* Start sector number of the cluster */
glebiuskv 0:2f0e1e23c242 1132 }
glebiuskv 0:2f0e1e23c242 1133
glebiuskv 0:2f0e1e23c242 1134
glebiuskv 0:2f0e1e23c242 1135
glebiuskv 0:2f0e1e23c242 1136
glebiuskv 0:2f0e1e23c242 1137 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1138 /* FAT access - Read value of a FAT entry */
glebiuskv 0:2f0e1e23c242 1139 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1140
glebiuskv 0:2f0e1e23c242 1141 static
glebiuskv 0:2f0e1e23c242 1142 DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x7FFFFFFF:Cluster status */
glebiuskv 0:2f0e1e23c242 1143 FFOBJID* obj, /* Corresponding object */
glebiuskv 0:2f0e1e23c242 1144 DWORD clst /* Cluster number to get the value */
glebiuskv 0:2f0e1e23c242 1145 )
glebiuskv 0:2f0e1e23c242 1146 {
glebiuskv 0:2f0e1e23c242 1147 UINT wc, bc;
glebiuskv 0:2f0e1e23c242 1148 DWORD val;
glebiuskv 0:2f0e1e23c242 1149 FATFS *fs = obj->fs;
glebiuskv 0:2f0e1e23c242 1150
glebiuskv 0:2f0e1e23c242 1151
glebiuskv 0:2f0e1e23c242 1152 if (clst < 2 || clst >= fs->n_fatent) { /* Check if in valid range */
glebiuskv 0:2f0e1e23c242 1153 val = 1; /* Internal error */
glebiuskv 0:2f0e1e23c242 1154
glebiuskv 0:2f0e1e23c242 1155 } else {
glebiuskv 0:2f0e1e23c242 1156 val = 0xFFFFFFFF; /* Default value falls on disk error */
glebiuskv 0:2f0e1e23c242 1157
glebiuskv 0:2f0e1e23c242 1158 switch (fs->fs_type) {
glebiuskv 0:2f0e1e23c242 1159 case FS_FAT12 :
glebiuskv 0:2f0e1e23c242 1160 bc = (UINT)clst; bc += bc / 2;
glebiuskv 0:2f0e1e23c242 1161 if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1162 wc = fs->win[bc++ % SS(fs)]; /* Get 1st byte of the entry */
glebiuskv 0:2f0e1e23c242 1163 if (move_window(fs, fs->fatbase + (bc / SS(fs))) != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1164 wc |= fs->win[bc % SS(fs)] << 8; /* Merge 2nd byte of the entry */
glebiuskv 0:2f0e1e23c242 1165 val = (clst & 1) ? (wc >> 4) : (wc & 0xFFF); /* Adjust bit position */
glebiuskv 0:2f0e1e23c242 1166 break;
glebiuskv 0:2f0e1e23c242 1167
glebiuskv 0:2f0e1e23c242 1168 case FS_FAT16 :
glebiuskv 0:2f0e1e23c242 1169 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1170 val = ld_word(fs->win + clst * 2 % SS(fs)); /* Simple WORD array */
glebiuskv 0:2f0e1e23c242 1171 break;
glebiuskv 0:2f0e1e23c242 1172
glebiuskv 0:2f0e1e23c242 1173 case FS_FAT32 :
glebiuskv 0:2f0e1e23c242 1174 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1175 val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x0FFFFFFF; /* Simple DWORD array but mask out upper 4 bits */
glebiuskv 0:2f0e1e23c242 1176 break;
glebiuskv 0:2f0e1e23c242 1177 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1178 case FS_EXFAT :
glebiuskv 0:2f0e1e23c242 1179 if (obj->objsize != 0) {
glebiuskv 0:2f0e1e23c242 1180 DWORD cofs = clst - obj->sclust; /* Offset from start cluster */
glebiuskv 0:2f0e1e23c242 1181 DWORD clen = (DWORD)((obj->objsize - 1) / SS(fs)) / fs->csize; /* Number of clusters - 1 */
glebiuskv 0:2f0e1e23c242 1182
glebiuskv 0:2f0e1e23c242 1183 if (obj->stat == 2 && cofs <= clen) { /* Is it a contiguous chain? */
glebiuskv 0:2f0e1e23c242 1184 val = (cofs == clen) ? 0x7FFFFFFF : clst + 1; /* No data on the FAT, generate the value */
glebiuskv 0:2f0e1e23c242 1185 break;
glebiuskv 0:2f0e1e23c242 1186 }
glebiuskv 0:2f0e1e23c242 1187 if (obj->stat == 3 && cofs < obj->n_cont) { /* Is it in the 1st fragment? */
glebiuskv 0:2f0e1e23c242 1188 val = clst + 1; /* Generate the value */
glebiuskv 0:2f0e1e23c242 1189 break;
glebiuskv 0:2f0e1e23c242 1190 }
glebiuskv 0:2f0e1e23c242 1191 if (obj->stat != 2) { /* Get value from FAT if FAT chain is valid */
glebiuskv 0:2f0e1e23c242 1192 if (obj->n_frag != 0) { /* Is it on the growing edge? */
glebiuskv 0:2f0e1e23c242 1193 val = 0x7FFFFFFF; /* Generate EOC */
glebiuskv 0:2f0e1e23c242 1194 } else {
glebiuskv 0:2f0e1e23c242 1195 if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1196 val = ld_dword(fs->win + clst * 4 % SS(fs)) & 0x7FFFFFFF;
glebiuskv 0:2f0e1e23c242 1197 }
glebiuskv 0:2f0e1e23c242 1198 break;
glebiuskv 0:2f0e1e23c242 1199 }
glebiuskv 0:2f0e1e23c242 1200 }
glebiuskv 0:2f0e1e23c242 1201 /* go to default */
glebiuskv 0:2f0e1e23c242 1202 #endif
glebiuskv 0:2f0e1e23c242 1203 default:
glebiuskv 0:2f0e1e23c242 1204 val = 1; /* Internal error */
glebiuskv 0:2f0e1e23c242 1205 }
glebiuskv 0:2f0e1e23c242 1206 }
glebiuskv 0:2f0e1e23c242 1207
glebiuskv 0:2f0e1e23c242 1208 return val;
glebiuskv 0:2f0e1e23c242 1209 }
glebiuskv 0:2f0e1e23c242 1210
glebiuskv 0:2f0e1e23c242 1211
glebiuskv 0:2f0e1e23c242 1212
glebiuskv 0:2f0e1e23c242 1213
glebiuskv 0:2f0e1e23c242 1214 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1215 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1216 /* FAT access - Change value of a FAT entry */
glebiuskv 0:2f0e1e23c242 1217 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1218
glebiuskv 0:2f0e1e23c242 1219 static
glebiuskv 0:2f0e1e23c242 1220 FRESULT put_fat ( /* FR_OK(0):succeeded, !=0:error */
glebiuskv 0:2f0e1e23c242 1221 FATFS* fs, /* Corresponding filesystem object */
glebiuskv 0:2f0e1e23c242 1222 DWORD clst, /* FAT index number (cluster number) to be changed */
glebiuskv 0:2f0e1e23c242 1223 DWORD val /* New value to be set to the entry */
glebiuskv 0:2f0e1e23c242 1224 )
glebiuskv 0:2f0e1e23c242 1225 {
glebiuskv 0:2f0e1e23c242 1226 UINT bc;
glebiuskv 0:2f0e1e23c242 1227 BYTE *p;
glebiuskv 0:2f0e1e23c242 1228 FRESULT res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 1229
glebiuskv 0:2f0e1e23c242 1230
glebiuskv 0:2f0e1e23c242 1231 if (clst >= 2 && clst < fs->n_fatent) { /* Check if in valid range */
glebiuskv 0:2f0e1e23c242 1232 switch (fs->fs_type) {
glebiuskv 0:2f0e1e23c242 1233 case FS_FAT12 :
glebiuskv 0:2f0e1e23c242 1234 bc = (UINT)clst; bc += bc / 2; /* bc: byte offset of the entry */
glebiuskv 0:2f0e1e23c242 1235 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
glebiuskv 0:2f0e1e23c242 1236 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1237 p = fs->win + bc++ % SS(fs);
glebiuskv 0:2f0e1e23c242 1238 *p = (clst & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; /* Put 1st byte */
glebiuskv 0:2f0e1e23c242 1239 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 1240 res = move_window(fs, fs->fatbase + (bc / SS(fs)));
glebiuskv 0:2f0e1e23c242 1241 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1242 p = fs->win + bc % SS(fs);
glebiuskv 0:2f0e1e23c242 1243 *p = (clst & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); /* Put 2nd byte */
glebiuskv 0:2f0e1e23c242 1244 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 1245 break;
glebiuskv 0:2f0e1e23c242 1246
glebiuskv 0:2f0e1e23c242 1247 case FS_FAT16 :
glebiuskv 0:2f0e1e23c242 1248 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
glebiuskv 0:2f0e1e23c242 1249 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1250 st_word(fs->win + clst * 2 % SS(fs), (WORD)val); /* Simple WORD array */
glebiuskv 0:2f0e1e23c242 1251 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 1252 break;
glebiuskv 0:2f0e1e23c242 1253
glebiuskv 0:2f0e1e23c242 1254 case FS_FAT32 :
glebiuskv 0:2f0e1e23c242 1255 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1256 case FS_EXFAT :
glebiuskv 0:2f0e1e23c242 1257 #endif
glebiuskv 0:2f0e1e23c242 1258 res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
glebiuskv 0:2f0e1e23c242 1259 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1260 if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 1261 val = (val & 0x0FFFFFFF) | (ld_dword(fs->win + clst * 4 % SS(fs)) & 0xF0000000);
glebiuskv 0:2f0e1e23c242 1262 }
glebiuskv 0:2f0e1e23c242 1263 st_dword(fs->win + clst * 4 % SS(fs), val);
glebiuskv 0:2f0e1e23c242 1264 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 1265 break;
glebiuskv 0:2f0e1e23c242 1266 }
glebiuskv 0:2f0e1e23c242 1267 }
glebiuskv 0:2f0e1e23c242 1268 return res;
glebiuskv 0:2f0e1e23c242 1269 }
glebiuskv 0:2f0e1e23c242 1270
glebiuskv 0:2f0e1e23c242 1271 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1272
glebiuskv 0:2f0e1e23c242 1273
glebiuskv 0:2f0e1e23c242 1274
glebiuskv 0:2f0e1e23c242 1275
glebiuskv 0:2f0e1e23c242 1276 #if FF_FS_EXFAT && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1277 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1278 /* exFAT: Accessing FAT and Allocation Bitmap */
glebiuskv 0:2f0e1e23c242 1279 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1280
glebiuskv 0:2f0e1e23c242 1281 /*--------------------------------------*/
glebiuskv 0:2f0e1e23c242 1282 /* Find a contiguous free cluster block */
glebiuskv 0:2f0e1e23c242 1283 /*--------------------------------------*/
glebiuskv 0:2f0e1e23c242 1284
glebiuskv 0:2f0e1e23c242 1285 static
glebiuskv 0:2f0e1e23c242 1286 DWORD find_bitmap ( /* 0:Not found, 2..:Cluster block found, 0xFFFFFFFF:Disk error */
glebiuskv 0:2f0e1e23c242 1287 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1288 DWORD clst, /* Cluster number to scan from */
glebiuskv 0:2f0e1e23c242 1289 DWORD ncl /* Number of contiguous clusters to find (1..) */
glebiuskv 0:2f0e1e23c242 1290 )
glebiuskv 0:2f0e1e23c242 1291 {
glebiuskv 0:2f0e1e23c242 1292 BYTE bm, bv;
glebiuskv 0:2f0e1e23c242 1293 UINT i;
glebiuskv 0:2f0e1e23c242 1294 DWORD val, scl, ctr;
glebiuskv 0:2f0e1e23c242 1295
glebiuskv 0:2f0e1e23c242 1296
glebiuskv 0:2f0e1e23c242 1297 clst -= 2; /* The first bit in the bitmap corresponds to cluster #2 */
glebiuskv 0:2f0e1e23c242 1298 if (clst >= fs->n_fatent - 2) clst = 0;
glebiuskv 0:2f0e1e23c242 1299 scl = val = clst; ctr = 0;
glebiuskv 0:2f0e1e23c242 1300 for (;;) {
glebiuskv 0:2f0e1e23c242 1301 if (move_window(fs, fs->database + val / 8 / SS(fs)) != FR_OK) return 0xFFFFFFFF; /* (assuming bitmap is located top of the cluster heap) */
glebiuskv 0:2f0e1e23c242 1302 i = val / 8 % SS(fs); bm = 1 << (val % 8);
glebiuskv 0:2f0e1e23c242 1303 do {
glebiuskv 0:2f0e1e23c242 1304 do {
glebiuskv 0:2f0e1e23c242 1305 bv = fs->win[i] & bm; bm <<= 1; /* Get bit value */
glebiuskv 0:2f0e1e23c242 1306 if (++val >= fs->n_fatent - 2) { /* Next cluster (with wrap-around) */
glebiuskv 0:2f0e1e23c242 1307 val = 0; bm = 0; i = SS(fs);
glebiuskv 0:2f0e1e23c242 1308 }
glebiuskv 0:2f0e1e23c242 1309 if (bv == 0) { /* Is it a free cluster? */
glebiuskv 0:2f0e1e23c242 1310 if (++ctr == ncl) return scl + 2; /* Check if run length is sufficient for required */
glebiuskv 0:2f0e1e23c242 1311 } else {
glebiuskv 0:2f0e1e23c242 1312 scl = val; ctr = 0; /* Encountered a cluster in-use, restart to scan */
glebiuskv 0:2f0e1e23c242 1313 }
glebiuskv 0:2f0e1e23c242 1314 if (val == clst) return 0; /* All cluster scanned? */
glebiuskv 0:2f0e1e23c242 1315 } while (bm != 0);
glebiuskv 0:2f0e1e23c242 1316 bm = 1;
glebiuskv 0:2f0e1e23c242 1317 } while (++i < SS(fs));
glebiuskv 0:2f0e1e23c242 1318 }
glebiuskv 0:2f0e1e23c242 1319 }
glebiuskv 0:2f0e1e23c242 1320
glebiuskv 0:2f0e1e23c242 1321
glebiuskv 0:2f0e1e23c242 1322 /*----------------------------------------*/
glebiuskv 0:2f0e1e23c242 1323 /* Set/Clear a block of allocation bitmap */
glebiuskv 0:2f0e1e23c242 1324 /*----------------------------------------*/
glebiuskv 0:2f0e1e23c242 1325
glebiuskv 0:2f0e1e23c242 1326 static
glebiuskv 0:2f0e1e23c242 1327 FRESULT change_bitmap (
glebiuskv 0:2f0e1e23c242 1328 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1329 DWORD clst, /* Cluster number to change from */
glebiuskv 0:2f0e1e23c242 1330 DWORD ncl, /* Number of clusters to be changed */
glebiuskv 0:2f0e1e23c242 1331 int bv /* bit value to be set (0 or 1) */
glebiuskv 0:2f0e1e23c242 1332 )
glebiuskv 0:2f0e1e23c242 1333 {
glebiuskv 0:2f0e1e23c242 1334 BYTE bm;
glebiuskv 0:2f0e1e23c242 1335 UINT i;
glebiuskv 0:2f0e1e23c242 1336 DWORD sect;
glebiuskv 0:2f0e1e23c242 1337
glebiuskv 0:2f0e1e23c242 1338
glebiuskv 0:2f0e1e23c242 1339 clst -= 2; /* The first bit corresponds to cluster #2 */
glebiuskv 0:2f0e1e23c242 1340 sect = fs->database + clst / 8 / SS(fs); /* Sector address (assuming bitmap is located top of the cluster heap) */
glebiuskv 0:2f0e1e23c242 1341 i = clst / 8 % SS(fs); /* Byte offset in the sector */
glebiuskv 0:2f0e1e23c242 1342 bm = 1 << (clst % 8); /* Bit mask in the byte */
glebiuskv 0:2f0e1e23c242 1343 for (;;) {
glebiuskv 0:2f0e1e23c242 1344 if (move_window(fs, sect++) != FR_OK) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1345 do {
glebiuskv 0:2f0e1e23c242 1346 do {
glebiuskv 0:2f0e1e23c242 1347 if (bv == (int)((fs->win[i] & bm) != 0)) return FR_INT_ERR; /* Is the bit expected value? */
glebiuskv 0:2f0e1e23c242 1348 fs->win[i] ^= bm; /* Flip the bit */
glebiuskv 0:2f0e1e23c242 1349 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 1350 if (--ncl == 0) return FR_OK; /* All bits processed? */
glebiuskv 0:2f0e1e23c242 1351 } while (bm <<= 1); /* Next bit */
glebiuskv 0:2f0e1e23c242 1352 bm = 1;
glebiuskv 0:2f0e1e23c242 1353 } while (++i < SS(fs)); /* Next byte */
glebiuskv 0:2f0e1e23c242 1354 i = 0;
glebiuskv 0:2f0e1e23c242 1355 }
glebiuskv 0:2f0e1e23c242 1356 }
glebiuskv 0:2f0e1e23c242 1357
glebiuskv 0:2f0e1e23c242 1358
glebiuskv 0:2f0e1e23c242 1359 /*---------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1360 /* Fill the first fragment of the FAT chain */
glebiuskv 0:2f0e1e23c242 1361 /*---------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1362
glebiuskv 0:2f0e1e23c242 1363 static
glebiuskv 0:2f0e1e23c242 1364 FRESULT fill_first_frag (
glebiuskv 0:2f0e1e23c242 1365 FFOBJID* obj /* Pointer to the corresponding object */
glebiuskv 0:2f0e1e23c242 1366 )
glebiuskv 0:2f0e1e23c242 1367 {
glebiuskv 0:2f0e1e23c242 1368 FRESULT res;
glebiuskv 0:2f0e1e23c242 1369 DWORD cl, n;
glebiuskv 0:2f0e1e23c242 1370
glebiuskv 0:2f0e1e23c242 1371
glebiuskv 0:2f0e1e23c242 1372 if (obj->stat == 3) { /* Has the object been changed 'fragmented' in this session? */
glebiuskv 0:2f0e1e23c242 1373 for (cl = obj->sclust, n = obj->n_cont; n; cl++, n--) { /* Create cluster chain on the FAT */
glebiuskv 0:2f0e1e23c242 1374 res = put_fat(obj->fs, cl, cl + 1);
glebiuskv 0:2f0e1e23c242 1375 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 1376 }
glebiuskv 0:2f0e1e23c242 1377 obj->stat = 0; /* Change status 'FAT chain is valid' */
glebiuskv 0:2f0e1e23c242 1378 }
glebiuskv 0:2f0e1e23c242 1379 return FR_OK;
glebiuskv 0:2f0e1e23c242 1380 }
glebiuskv 0:2f0e1e23c242 1381
glebiuskv 0:2f0e1e23c242 1382
glebiuskv 0:2f0e1e23c242 1383 /*---------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1384 /* Fill the last fragment of the FAT chain */
glebiuskv 0:2f0e1e23c242 1385 /*---------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1386
glebiuskv 0:2f0e1e23c242 1387 static
glebiuskv 0:2f0e1e23c242 1388 FRESULT fill_last_frag (
glebiuskv 0:2f0e1e23c242 1389 FFOBJID* obj, /* Pointer to the corresponding object */
glebiuskv 0:2f0e1e23c242 1390 DWORD lcl, /* Last cluster of the fragment */
glebiuskv 0:2f0e1e23c242 1391 DWORD term /* Value to set the last FAT entry */
glebiuskv 0:2f0e1e23c242 1392 )
glebiuskv 0:2f0e1e23c242 1393 {
glebiuskv 0:2f0e1e23c242 1394 FRESULT res;
glebiuskv 0:2f0e1e23c242 1395
glebiuskv 0:2f0e1e23c242 1396
glebiuskv 0:2f0e1e23c242 1397 while (obj->n_frag > 0) { /* Create the chain of last fragment */
glebiuskv 0:2f0e1e23c242 1398 res = put_fat(obj->fs, lcl - obj->n_frag + 1, (obj->n_frag > 1) ? lcl - obj->n_frag + 2 : term);
glebiuskv 0:2f0e1e23c242 1399 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 1400 obj->n_frag--;
glebiuskv 0:2f0e1e23c242 1401 }
glebiuskv 0:2f0e1e23c242 1402 return FR_OK;
glebiuskv 0:2f0e1e23c242 1403 }
glebiuskv 0:2f0e1e23c242 1404
glebiuskv 0:2f0e1e23c242 1405 #endif /* FF_FS_EXFAT && !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1406
glebiuskv 0:2f0e1e23c242 1407
glebiuskv 0:2f0e1e23c242 1408
glebiuskv 0:2f0e1e23c242 1409 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1410 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1411 /* FAT handling - Remove a cluster chain */
glebiuskv 0:2f0e1e23c242 1412 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1413 static
glebiuskv 0:2f0e1e23c242 1414 FRESULT remove_chain ( /* FR_OK(0):succeeded, !=0:error */
glebiuskv 0:2f0e1e23c242 1415 FFOBJID* obj, /* Corresponding object */
glebiuskv 0:2f0e1e23c242 1416 DWORD clst, /* Cluster to remove a chain from */
glebiuskv 0:2f0e1e23c242 1417 DWORD pclst /* Previous cluster of clst (0:entire chain) */
glebiuskv 0:2f0e1e23c242 1418 )
glebiuskv 0:2f0e1e23c242 1419 {
glebiuskv 0:2f0e1e23c242 1420 FRESULT res = FR_OK;
glebiuskv 0:2f0e1e23c242 1421 DWORD nxt;
glebiuskv 0:2f0e1e23c242 1422 FATFS *fs = obj->fs;
glebiuskv 0:2f0e1e23c242 1423 #if FF_FS_EXFAT || FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 1424 DWORD scl = clst, ecl = clst;
glebiuskv 0:2f0e1e23c242 1425 #endif
glebiuskv 0:2f0e1e23c242 1426 #if FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 1427 DWORD rt[2];
glebiuskv 0:2f0e1e23c242 1428 #endif
glebiuskv 0:2f0e1e23c242 1429
glebiuskv 0:2f0e1e23c242 1430 if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Check if in valid range */
glebiuskv 0:2f0e1e23c242 1431
glebiuskv 0:2f0e1e23c242 1432 /* Mark the previous cluster 'EOC' on the FAT if it exists */
glebiuskv 0:2f0e1e23c242 1433 if (pclst != 0 && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT || obj->stat != 2)) {
glebiuskv 0:2f0e1e23c242 1434 res = put_fat(fs, pclst, 0xFFFFFFFF);
glebiuskv 0:2f0e1e23c242 1435 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 1436 }
glebiuskv 0:2f0e1e23c242 1437
glebiuskv 0:2f0e1e23c242 1438 /* Remove the chain */
glebiuskv 0:2f0e1e23c242 1439 do {
glebiuskv 0:2f0e1e23c242 1440 nxt = get_fat(obj, clst); /* Get cluster status */
glebiuskv 0:2f0e1e23c242 1441 if (nxt == 0) break; /* Empty cluster? */
glebiuskv 0:2f0e1e23c242 1442 if (nxt == 1) return FR_INT_ERR; /* Internal error? */
glebiuskv 0:2f0e1e23c242 1443 if (nxt == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error? */
glebiuskv 0:2f0e1e23c242 1444 if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 1445 res = put_fat(fs, clst, 0); /* Mark the cluster 'free' on the FAT */
glebiuskv 0:2f0e1e23c242 1446 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 1447 }
glebiuskv 0:2f0e1e23c242 1448 if (fs->free_clst < fs->n_fatent - 2) { /* Update FSINFO */
glebiuskv 0:2f0e1e23c242 1449 fs->free_clst++;
glebiuskv 0:2f0e1e23c242 1450 fs->fsi_flag |= 1;
glebiuskv 0:2f0e1e23c242 1451 }
glebiuskv 0:2f0e1e23c242 1452 #if FF_FS_EXFAT || FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 1453 if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
glebiuskv 0:2f0e1e23c242 1454 ecl = nxt;
glebiuskv 0:2f0e1e23c242 1455 } else { /* End of contiguous cluster block */
glebiuskv 0:2f0e1e23c242 1456 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1457 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 1458 res = change_bitmap(fs, scl, ecl - scl + 1, 0); /* Mark the cluster block 'free' on the bitmap */
glebiuskv 0:2f0e1e23c242 1459 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 1460 }
glebiuskv 0:2f0e1e23c242 1461 #endif
glebiuskv 0:2f0e1e23c242 1462 #if FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 1463 rt[0] = clst2sect(fs, scl); /* Start of data area freed */
glebiuskv 0:2f0e1e23c242 1464 rt[1] = clst2sect(fs, ecl) + fs->csize - 1; /* End of data area freed */
glebiuskv 0:2f0e1e23c242 1465 disk_ioctl(fs->pdrv, CTRL_TRIM, rt); /* Inform device the data in the block is no longer needed */
glebiuskv 0:2f0e1e23c242 1466 #endif
glebiuskv 0:2f0e1e23c242 1467 scl = ecl = nxt;
glebiuskv 0:2f0e1e23c242 1468 }
glebiuskv 0:2f0e1e23c242 1469 #endif
glebiuskv 0:2f0e1e23c242 1470 clst = nxt; /* Next cluster */
glebiuskv 0:2f0e1e23c242 1471 } while (clst < fs->n_fatent); /* Repeat while not the last link */
glebiuskv 0:2f0e1e23c242 1472
glebiuskv 0:2f0e1e23c242 1473 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1474 /* Some post processes for chain status */
glebiuskv 0:2f0e1e23c242 1475 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 1476 if (pclst == 0) { /* Has the entire chain been removed? */
glebiuskv 0:2f0e1e23c242 1477 obj->stat = 0; /* Change the chain status 'initial' */
glebiuskv 0:2f0e1e23c242 1478 } else {
glebiuskv 0:2f0e1e23c242 1479 if (obj->stat == 0) { /* Is it a fragmented chain from the beginning of this session? */
glebiuskv 0:2f0e1e23c242 1480 clst = obj->sclust; /* Follow the chain to check if it gets contiguous */
glebiuskv 0:2f0e1e23c242 1481 while (clst != pclst) {
glebiuskv 0:2f0e1e23c242 1482 nxt = get_fat(obj, clst);
glebiuskv 0:2f0e1e23c242 1483 if (nxt < 2) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 1484 if (nxt == 0xFFFFFFFF) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1485 if (nxt != clst + 1) break; /* Not contiguous? */
glebiuskv 0:2f0e1e23c242 1486 clst++;
glebiuskv 0:2f0e1e23c242 1487 }
glebiuskv 0:2f0e1e23c242 1488 if (clst == pclst) { /* Has the chain got contiguous again? */
glebiuskv 0:2f0e1e23c242 1489 obj->stat = 2; /* Change the chain status 'contiguous' */
glebiuskv 0:2f0e1e23c242 1490 }
glebiuskv 0:2f0e1e23c242 1491 } else {
glebiuskv 0:2f0e1e23c242 1492 if (obj->stat == 3 && pclst >= obj->sclust && pclst <= obj->sclust + obj->n_cont) { /* Was the chain fragmented in this session and got contiguous again? */
glebiuskv 0:2f0e1e23c242 1493 obj->stat = 2; /* Change the chain status 'contiguous' */
glebiuskv 0:2f0e1e23c242 1494 }
glebiuskv 0:2f0e1e23c242 1495 }
glebiuskv 0:2f0e1e23c242 1496 }
glebiuskv 0:2f0e1e23c242 1497 }
glebiuskv 0:2f0e1e23c242 1498 #endif
glebiuskv 0:2f0e1e23c242 1499 return FR_OK;
glebiuskv 0:2f0e1e23c242 1500 }
glebiuskv 0:2f0e1e23c242 1501
glebiuskv 0:2f0e1e23c242 1502
glebiuskv 0:2f0e1e23c242 1503
glebiuskv 0:2f0e1e23c242 1504
glebiuskv 0:2f0e1e23c242 1505 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1506 /* FAT handling - Stretch a chain or Create a new chain */
glebiuskv 0:2f0e1e23c242 1507 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1508 static
glebiuskv 0:2f0e1e23c242 1509 DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
glebiuskv 0:2f0e1e23c242 1510 FFOBJID* obj, /* Corresponding object */
glebiuskv 0:2f0e1e23c242 1511 DWORD clst /* Cluster# to stretch, 0:Create a new chain */
glebiuskv 0:2f0e1e23c242 1512 )
glebiuskv 0:2f0e1e23c242 1513 {
glebiuskv 0:2f0e1e23c242 1514 DWORD cs, ncl, scl;
glebiuskv 0:2f0e1e23c242 1515 FRESULT res;
glebiuskv 0:2f0e1e23c242 1516 FATFS *fs = obj->fs;
glebiuskv 0:2f0e1e23c242 1517
glebiuskv 0:2f0e1e23c242 1518
glebiuskv 0:2f0e1e23c242 1519 if (clst == 0) { /* Create a new chain */
glebiuskv 0:2f0e1e23c242 1520 scl = fs->last_clst; /* Suggested cluster to start to find */
glebiuskv 0:2f0e1e23c242 1521 if (scl == 0 || scl >= fs->n_fatent) scl = 1;
glebiuskv 0:2f0e1e23c242 1522 }
glebiuskv 0:2f0e1e23c242 1523 else { /* Stretch a chain */
glebiuskv 0:2f0e1e23c242 1524 cs = get_fat(obj, clst); /* Check the cluster status */
glebiuskv 0:2f0e1e23c242 1525 if (cs < 2) return 1; /* Test for insanity */
glebiuskv 0:2f0e1e23c242 1526 if (cs == 0xFFFFFFFF) return cs; /* Test for disk error */
glebiuskv 0:2f0e1e23c242 1527 if (cs < fs->n_fatent) return cs; /* It is already followed by next cluster */
glebiuskv 0:2f0e1e23c242 1528 scl = clst; /* Cluster to start to find */
glebiuskv 0:2f0e1e23c242 1529 }
glebiuskv 0:2f0e1e23c242 1530 if (fs->free_clst == 0) return 0; /* No free cluster */
glebiuskv 0:2f0e1e23c242 1531
glebiuskv 0:2f0e1e23c242 1532 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1533 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 1534 ncl = find_bitmap(fs, scl, 1); /* Find a free cluster */
glebiuskv 0:2f0e1e23c242 1535 if (ncl == 0 || ncl == 0xFFFFFFFF) return ncl; /* No free cluster or hard error? */
glebiuskv 0:2f0e1e23c242 1536 res = change_bitmap(fs, ncl, 1, 1); /* Mark the cluster 'in use' */
glebiuskv 0:2f0e1e23c242 1537 if (res == FR_INT_ERR) return 1;
glebiuskv 0:2f0e1e23c242 1538 if (res == FR_DISK_ERR) return 0xFFFFFFFF;
glebiuskv 0:2f0e1e23c242 1539 if (clst == 0) { /* Is it a new chain? */
glebiuskv 0:2f0e1e23c242 1540 obj->stat = 2; /* Set status 'contiguous' */
glebiuskv 0:2f0e1e23c242 1541 } else { /* It is a stretched chain */
glebiuskv 0:2f0e1e23c242 1542 if (obj->stat == 2 && ncl != scl + 1) { /* Is the chain got fragmented? */
glebiuskv 0:2f0e1e23c242 1543 obj->n_cont = scl - obj->sclust; /* Set size of the contiguous part */
glebiuskv 0:2f0e1e23c242 1544 obj->stat = 3; /* Change status 'just fragmented' */
glebiuskv 0:2f0e1e23c242 1545 }
glebiuskv 0:2f0e1e23c242 1546 }
glebiuskv 0:2f0e1e23c242 1547 if (obj->stat != 2) { /* Is the file non-contiguous? */
glebiuskv 0:2f0e1e23c242 1548 if (ncl == clst + 1) { /* Is the cluster next to previous one? */
glebiuskv 0:2f0e1e23c242 1549 obj->n_frag = obj->n_frag ? obj->n_frag + 1 : 2; /* Increment size of last framgent */
glebiuskv 0:2f0e1e23c242 1550 } else { /* New fragment */
glebiuskv 0:2f0e1e23c242 1551 if (obj->n_frag == 0) obj->n_frag = 1;
glebiuskv 0:2f0e1e23c242 1552 res = fill_last_frag(obj, clst, ncl); /* Fill last fragment on the FAT and link it to new one */
glebiuskv 0:2f0e1e23c242 1553 if (res == FR_OK) obj->n_frag = 1;
glebiuskv 0:2f0e1e23c242 1554 }
glebiuskv 0:2f0e1e23c242 1555 }
glebiuskv 0:2f0e1e23c242 1556 } else
glebiuskv 0:2f0e1e23c242 1557 #endif
glebiuskv 0:2f0e1e23c242 1558 { /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 1559 ncl = 0;
glebiuskv 0:2f0e1e23c242 1560 if (scl == clst) { /* Stretching an existing chain? */
glebiuskv 0:2f0e1e23c242 1561 ncl = scl + 1; /* Test if next cluster is free */
glebiuskv 0:2f0e1e23c242 1562 if (ncl >= fs->n_fatent) ncl = 2;
glebiuskv 0:2f0e1e23c242 1563 cs = get_fat(obj, ncl); /* Get next cluster status */
glebiuskv 0:2f0e1e23c242 1564 if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */
glebiuskv 0:2f0e1e23c242 1565 if (cs != 0) { /* Not free? */
glebiuskv 0:2f0e1e23c242 1566 cs = fs->last_clst; /* Start at suggested cluster if it is valid */
glebiuskv 0:2f0e1e23c242 1567 if (cs >= 2 && cs < fs->n_fatent) scl = cs;
glebiuskv 0:2f0e1e23c242 1568 ncl = 0;
glebiuskv 0:2f0e1e23c242 1569 }
glebiuskv 0:2f0e1e23c242 1570 }
glebiuskv 0:2f0e1e23c242 1571 if (ncl == 0) { /* The new cluster cannot be contiguous and find another fragment */
glebiuskv 0:2f0e1e23c242 1572 ncl = scl; /* Start cluster */
glebiuskv 0:2f0e1e23c242 1573 for (;;) {
glebiuskv 0:2f0e1e23c242 1574 ncl++; /* Next cluster */
glebiuskv 0:2f0e1e23c242 1575 if (ncl >= fs->n_fatent) { /* Check wrap-around */
glebiuskv 0:2f0e1e23c242 1576 ncl = 2;
glebiuskv 0:2f0e1e23c242 1577 if (ncl > scl) return 0; /* No free cluster found? */
glebiuskv 0:2f0e1e23c242 1578 }
glebiuskv 0:2f0e1e23c242 1579 cs = get_fat(obj, ncl); /* Get the cluster status */
glebiuskv 0:2f0e1e23c242 1580 if (cs == 0) break; /* Found a free cluster? */
glebiuskv 0:2f0e1e23c242 1581 if (cs == 1 || cs == 0xFFFFFFFF) return cs; /* Test for error */
glebiuskv 0:2f0e1e23c242 1582 if (ncl == scl) return 0; /* No free cluster found? */
glebiuskv 0:2f0e1e23c242 1583 }
glebiuskv 0:2f0e1e23c242 1584 }
glebiuskv 0:2f0e1e23c242 1585 res = put_fat(fs, ncl, 0xFFFFFFFF); /* Mark the new cluster 'EOC' */
glebiuskv 0:2f0e1e23c242 1586 if (res == FR_OK && clst != 0) {
glebiuskv 0:2f0e1e23c242 1587 res = put_fat(fs, clst, ncl); /* Link it from the previous one if needed */
glebiuskv 0:2f0e1e23c242 1588 }
glebiuskv 0:2f0e1e23c242 1589 }
glebiuskv 0:2f0e1e23c242 1590
glebiuskv 0:2f0e1e23c242 1591 if (res == FR_OK) { /* Update FSINFO if function succeeded. */
glebiuskv 0:2f0e1e23c242 1592 fs->last_clst = ncl;
glebiuskv 0:2f0e1e23c242 1593 if (fs->free_clst <= fs->n_fatent - 2) fs->free_clst--;
glebiuskv 0:2f0e1e23c242 1594 fs->fsi_flag |= 1;
glebiuskv 0:2f0e1e23c242 1595 } else {
glebiuskv 0:2f0e1e23c242 1596 ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFF : 1; /* Failed. Generate error status */
glebiuskv 0:2f0e1e23c242 1597 }
glebiuskv 0:2f0e1e23c242 1598
glebiuskv 0:2f0e1e23c242 1599 return ncl; /* Return new cluster number or error status */
glebiuskv 0:2f0e1e23c242 1600 }
glebiuskv 0:2f0e1e23c242 1601
glebiuskv 0:2f0e1e23c242 1602 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1603
glebiuskv 0:2f0e1e23c242 1604
glebiuskv 0:2f0e1e23c242 1605
glebiuskv 0:2f0e1e23c242 1606
glebiuskv 0:2f0e1e23c242 1607 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 1608 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1609 /* FAT handling - Convert offset into cluster with link map table */
glebiuskv 0:2f0e1e23c242 1610 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1611
glebiuskv 0:2f0e1e23c242 1612 static
glebiuskv 0:2f0e1e23c242 1613 DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
glebiuskv 0:2f0e1e23c242 1614 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 1615 FSIZE_t ofs /* File offset to be converted to cluster# */
glebiuskv 0:2f0e1e23c242 1616 )
glebiuskv 0:2f0e1e23c242 1617 {
glebiuskv 0:2f0e1e23c242 1618 DWORD cl, ncl, *tbl;
glebiuskv 0:2f0e1e23c242 1619 FATFS *fs = fp->obj.fs;
glebiuskv 0:2f0e1e23c242 1620
glebiuskv 0:2f0e1e23c242 1621
glebiuskv 0:2f0e1e23c242 1622 tbl = fp->cltbl + 1; /* Top of CLMT */
glebiuskv 0:2f0e1e23c242 1623 cl = (DWORD)(ofs / SS(fs) / fs->csize); /* Cluster order from top of the file */
glebiuskv 0:2f0e1e23c242 1624 for (;;) {
glebiuskv 0:2f0e1e23c242 1625 ncl = *tbl++; /* Number of cluters in the fragment */
glebiuskv 0:2f0e1e23c242 1626 if (ncl == 0) return 0; /* End of table? (error) */
glebiuskv 0:2f0e1e23c242 1627 if (cl < ncl) break; /* In this fragment? */
glebiuskv 0:2f0e1e23c242 1628 cl -= ncl; tbl++; /* Next fragment */
glebiuskv 0:2f0e1e23c242 1629 }
glebiuskv 0:2f0e1e23c242 1630 return cl + *tbl; /* Return the cluster number */
glebiuskv 0:2f0e1e23c242 1631 }
glebiuskv 0:2f0e1e23c242 1632
glebiuskv 0:2f0e1e23c242 1633 #endif /* FF_USE_FASTSEEK */
glebiuskv 0:2f0e1e23c242 1634
glebiuskv 0:2f0e1e23c242 1635
glebiuskv 0:2f0e1e23c242 1636
glebiuskv 0:2f0e1e23c242 1637
glebiuskv 0:2f0e1e23c242 1638 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1639 /* Directory handling - Fill a cluster with zeros */
glebiuskv 0:2f0e1e23c242 1640 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1641
glebiuskv 0:2f0e1e23c242 1642 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1643 static
glebiuskv 0:2f0e1e23c242 1644 FRESULT dir_clear ( /* Returns FR_OK or FR_DISK_ERR */
glebiuskv 0:2f0e1e23c242 1645 FATFS *fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 1646 DWORD clst /* Directory table to clear */
glebiuskv 0:2f0e1e23c242 1647 )
glebiuskv 0:2f0e1e23c242 1648 {
glebiuskv 0:2f0e1e23c242 1649 DWORD sect;
glebiuskv 0:2f0e1e23c242 1650 UINT n, szb;
glebiuskv 0:2f0e1e23c242 1651 BYTE *ibuf;
glebiuskv 0:2f0e1e23c242 1652
glebiuskv 0:2f0e1e23c242 1653
glebiuskv 0:2f0e1e23c242 1654 if (sync_window(fs) != FR_OK) return FR_DISK_ERR; /* Flush disk access window */
glebiuskv 0:2f0e1e23c242 1655 sect = clst2sect(fs, clst); /* Top of the cluster */
glebiuskv 0:2f0e1e23c242 1656 fs->winsect = sect; /* Set window to top of the cluster */
glebiuskv 0:2f0e1e23c242 1657 mem_set(fs->win, 0, SS(fs)); /* Clear window buffer */
glebiuskv 0:2f0e1e23c242 1658 #if FF_USE_LFN == 3 /* Quick table clear by using multi-secter write */
glebiuskv 0:2f0e1e23c242 1659 /* Allocate a temporary buffer */
glebiuskv 0:2f0e1e23c242 1660 for (szb = ((DWORD)fs->csize * SS(fs) >= MAX_MALLOC) ? MAX_MALLOC : fs->csize * SS(fs); szb > SS(fs) && !(ibuf = (BYTE *)ff_memalloc(szb)); szb /= 2) ;
glebiuskv 0:2f0e1e23c242 1661 if (szb > SS(fs)) { /* Buffer allocated? */
glebiuskv 0:2f0e1e23c242 1662 mem_set(ibuf, 0, szb);
glebiuskv 0:2f0e1e23c242 1663 szb /= SS(fs); /* Bytes -> Sectors */
glebiuskv 0:2f0e1e23c242 1664 for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */
glebiuskv 0:2f0e1e23c242 1665 ff_memfree(ibuf);
glebiuskv 0:2f0e1e23c242 1666 } else
glebiuskv 0:2f0e1e23c242 1667 #endif
glebiuskv 0:2f0e1e23c242 1668 {
glebiuskv 0:2f0e1e23c242 1669 ibuf = fs->win; szb = 1; /* Use window buffer (single-sector writes may take a time) */
glebiuskv 0:2f0e1e23c242 1670 for (n = 0; n < fs->csize && disk_write(fs->pdrv, ibuf, sect + n, szb) == RES_OK; n += szb) ; /* Fill the cluster with 0 */
glebiuskv 0:2f0e1e23c242 1671 }
glebiuskv 0:2f0e1e23c242 1672 return (n == fs->csize) ? FR_OK : FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 1673 }
glebiuskv 0:2f0e1e23c242 1674 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1675
glebiuskv 0:2f0e1e23c242 1676
glebiuskv 0:2f0e1e23c242 1677
glebiuskv 0:2f0e1e23c242 1678
glebiuskv 0:2f0e1e23c242 1679 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1680 /* Directory handling - Set directory index */
glebiuskv 0:2f0e1e23c242 1681 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1682
glebiuskv 0:2f0e1e23c242 1683 static
glebiuskv 0:2f0e1e23c242 1684 FRESULT dir_sdi ( /* FR_OK(0):succeeded, !=0:error */
glebiuskv 0:2f0e1e23c242 1685 FATFS_DIR* dp, /* Pointer to directory object */
glebiuskv 0:2f0e1e23c242 1686 DWORD ofs /* Offset of directory table */
glebiuskv 0:2f0e1e23c242 1687 )
glebiuskv 0:2f0e1e23c242 1688 {
glebiuskv 0:2f0e1e23c242 1689 DWORD csz, clst;
glebiuskv 0:2f0e1e23c242 1690 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 1691
glebiuskv 0:2f0e1e23c242 1692
glebiuskv 0:2f0e1e23c242 1693 if (ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR) || ofs % SZDIRE) { /* Check range of offset and alignment */
glebiuskv 0:2f0e1e23c242 1694 return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 1695 }
glebiuskv 0:2f0e1e23c242 1696 dp->dptr = ofs; /* Set current offset */
glebiuskv 0:2f0e1e23c242 1697 clst = dp->obj.sclust; /* Table start cluster (0:root) */
glebiuskv 0:2f0e1e23c242 1698 if (clst == 0 && fs->fs_type >= FS_FAT32) { /* Replace cluster# 0 with root cluster# */
glebiuskv 0:2f0e1e23c242 1699 clst = fs->dirbase;
glebiuskv 0:2f0e1e23c242 1700 if (FF_FS_EXFAT) dp->obj.stat = 0; /* exFAT: Root dir has an FAT chain */
glebiuskv 0:2f0e1e23c242 1701 }
glebiuskv 0:2f0e1e23c242 1702
glebiuskv 0:2f0e1e23c242 1703 if (clst == 0) { /* Static table (root-directory on the FAT volume) */
glebiuskv 0:2f0e1e23c242 1704 if (ofs / SZDIRE >= fs->n_rootdir) return FR_INT_ERR; /* Is index out of range? */
glebiuskv 0:2f0e1e23c242 1705 dp->sect = fs->dirbase;
glebiuskv 0:2f0e1e23c242 1706
glebiuskv 0:2f0e1e23c242 1707 } else { /* Dynamic table (sub-directory or root-directory on the FAT32/exFAT volume) */
glebiuskv 0:2f0e1e23c242 1708 csz = (DWORD)fs->csize * SS(fs); /* Bytes per cluster */
glebiuskv 0:2f0e1e23c242 1709 while (ofs >= csz) { /* Follow cluster chain */
glebiuskv 0:2f0e1e23c242 1710 clst = get_fat(&dp->obj, clst); /* Get next cluster */
glebiuskv 0:2f0e1e23c242 1711 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
glebiuskv 0:2f0e1e23c242 1712 if (clst < 2 || clst >= fs->n_fatent) return FR_INT_ERR; /* Reached to end of table or internal error */
glebiuskv 0:2f0e1e23c242 1713 ofs -= csz;
glebiuskv 0:2f0e1e23c242 1714 }
glebiuskv 0:2f0e1e23c242 1715 dp->sect = clst2sect(fs, clst);
glebiuskv 0:2f0e1e23c242 1716 }
glebiuskv 0:2f0e1e23c242 1717 dp->clust = clst; /* Current cluster# */
glebiuskv 0:2f0e1e23c242 1718 if (dp->sect == 0) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 1719 dp->sect += ofs / SS(fs); /* Sector# of the directory entry */
glebiuskv 0:2f0e1e23c242 1720 dp->dir = fs->win + (ofs % SS(fs)); /* Pointer to the entry in the win[] */
glebiuskv 0:2f0e1e23c242 1721
glebiuskv 0:2f0e1e23c242 1722 return FR_OK;
glebiuskv 0:2f0e1e23c242 1723 }
glebiuskv 0:2f0e1e23c242 1724
glebiuskv 0:2f0e1e23c242 1725
glebiuskv 0:2f0e1e23c242 1726
glebiuskv 0:2f0e1e23c242 1727
glebiuskv 0:2f0e1e23c242 1728 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1729 /* Directory handling - Move directory table index next */
glebiuskv 0:2f0e1e23c242 1730 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1731
glebiuskv 0:2f0e1e23c242 1732 static
glebiuskv 0:2f0e1e23c242 1733 FRESULT dir_next ( /* FR_OK(0):succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
glebiuskv 0:2f0e1e23c242 1734 FATFS_DIR* dp, /* Pointer to the directory object */
glebiuskv 0:2f0e1e23c242 1735 int stretch /* 0: Do not stretch table, 1: Stretch table if needed */
glebiuskv 0:2f0e1e23c242 1736 )
glebiuskv 0:2f0e1e23c242 1737 {
glebiuskv 0:2f0e1e23c242 1738 DWORD ofs, clst;
glebiuskv 0:2f0e1e23c242 1739 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 1740
glebiuskv 0:2f0e1e23c242 1741
glebiuskv 0:2f0e1e23c242 1742 ofs = dp->dptr + SZDIRE; /* Next entry */
glebiuskv 0:2f0e1e23c242 1743 if (dp->sect == 0 || ofs >= (DWORD)((FF_FS_EXFAT && fs->fs_type == FS_EXFAT) ? MAX_DIR_EX : MAX_DIR)) return FR_NO_FILE; /* Report EOT when offset has reached max value */
glebiuskv 0:2f0e1e23c242 1744
glebiuskv 0:2f0e1e23c242 1745 if (ofs % SS(fs) == 0) { /* Sector changed? */
glebiuskv 0:2f0e1e23c242 1746 dp->sect++; /* Next sector */
glebiuskv 0:2f0e1e23c242 1747
glebiuskv 0:2f0e1e23c242 1748 if (dp->clust == 0) { /* Static table */
glebiuskv 0:2f0e1e23c242 1749 if (ofs / SZDIRE >= fs->n_rootdir) { /* Report EOT if it reached end of static table */
glebiuskv 0:2f0e1e23c242 1750 dp->sect = 0; return FR_NO_FILE;
glebiuskv 0:2f0e1e23c242 1751 }
glebiuskv 0:2f0e1e23c242 1752 }
glebiuskv 0:2f0e1e23c242 1753 else { /* Dynamic table */
glebiuskv 0:2f0e1e23c242 1754 if ((ofs / SS(fs) & (fs->csize - 1)) == 0) { /* Cluster changed? */
glebiuskv 0:2f0e1e23c242 1755 clst = get_fat(&dp->obj, dp->clust); /* Get next cluster */
glebiuskv 0:2f0e1e23c242 1756 if (clst <= 1) return FR_INT_ERR; /* Internal error */
glebiuskv 0:2f0e1e23c242 1757 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
glebiuskv 0:2f0e1e23c242 1758 if (clst >= fs->n_fatent) { /* It reached end of dynamic table */
glebiuskv 0:2f0e1e23c242 1759 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1760 if (!stretch) { /* If no stretch, report EOT */
glebiuskv 0:2f0e1e23c242 1761 dp->sect = 0; return FR_NO_FILE;
glebiuskv 0:2f0e1e23c242 1762 }
glebiuskv 0:2f0e1e23c242 1763 clst = create_chain(&dp->obj, dp->clust); /* Allocate a cluster */
glebiuskv 0:2f0e1e23c242 1764 if (clst == 0) return FR_DENIED; /* No free cluster */
glebiuskv 0:2f0e1e23c242 1765 if (clst == 1) return FR_INT_ERR; /* Internal error */
glebiuskv 0:2f0e1e23c242 1766 if (clst == 0xFFFFFFFF) return FR_DISK_ERR; /* Disk error */
glebiuskv 0:2f0e1e23c242 1767 if (dir_clear(fs, clst) != FR_OK) return FR_DISK_ERR; /* Clean up the stretched table */
glebiuskv 0:2f0e1e23c242 1768 if (FF_FS_EXFAT) dp->obj.stat |= 4; /* exFAT: The directory has been stretched */
glebiuskv 0:2f0e1e23c242 1769 #else
glebiuskv 0:2f0e1e23c242 1770 if (!stretch) dp->sect = 0; /* (this line is to suppress compiler warning) */
glebiuskv 0:2f0e1e23c242 1771 dp->sect = 0; return FR_NO_FILE; /* Report EOT */
glebiuskv 0:2f0e1e23c242 1772 #endif
glebiuskv 0:2f0e1e23c242 1773 }
glebiuskv 0:2f0e1e23c242 1774 dp->clust = clst; /* Initialize data for new cluster */
glebiuskv 0:2f0e1e23c242 1775 dp->sect = clst2sect(fs, clst);
glebiuskv 0:2f0e1e23c242 1776 }
glebiuskv 0:2f0e1e23c242 1777 }
glebiuskv 0:2f0e1e23c242 1778 }
glebiuskv 0:2f0e1e23c242 1779 dp->dptr = ofs; /* Current entry */
glebiuskv 0:2f0e1e23c242 1780 dp->dir = fs->win + ofs % SS(fs); /* Pointer to the entry in the win[] */
glebiuskv 0:2f0e1e23c242 1781
glebiuskv 0:2f0e1e23c242 1782 return FR_OK;
glebiuskv 0:2f0e1e23c242 1783 }
glebiuskv 0:2f0e1e23c242 1784
glebiuskv 0:2f0e1e23c242 1785
glebiuskv 0:2f0e1e23c242 1786
glebiuskv 0:2f0e1e23c242 1787
glebiuskv 0:2f0e1e23c242 1788 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1789 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1790 /* Directory handling - Reserve a block of directory entries */
glebiuskv 0:2f0e1e23c242 1791 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1792
glebiuskv 0:2f0e1e23c242 1793 static
glebiuskv 0:2f0e1e23c242 1794 FRESULT dir_alloc ( /* FR_OK(0):succeeded, !=0:error */
glebiuskv 0:2f0e1e23c242 1795 FATFS_DIR* dp, /* Pointer to the directory object */
glebiuskv 0:2f0e1e23c242 1796 UINT nent /* Number of contiguous entries to allocate */
glebiuskv 0:2f0e1e23c242 1797 )
glebiuskv 0:2f0e1e23c242 1798 {
glebiuskv 0:2f0e1e23c242 1799 FRESULT res;
glebiuskv 0:2f0e1e23c242 1800 UINT n;
glebiuskv 0:2f0e1e23c242 1801 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 1802
glebiuskv 0:2f0e1e23c242 1803
glebiuskv 0:2f0e1e23c242 1804 res = dir_sdi(dp, 0);
glebiuskv 0:2f0e1e23c242 1805 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 1806 n = 0;
glebiuskv 0:2f0e1e23c242 1807 do {
glebiuskv 0:2f0e1e23c242 1808 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 1809 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 1810 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1811 if ((fs->fs_type == FS_EXFAT) ? (int)((dp->dir[XDIR_Type] & 0x80) == 0) : (int)(dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0)) {
glebiuskv 0:2f0e1e23c242 1812 #else
glebiuskv 0:2f0e1e23c242 1813 if (dp->dir[DIR_Name] == DDEM || dp->dir[DIR_Name] == 0) {
glebiuskv 0:2f0e1e23c242 1814 #endif
glebiuskv 0:2f0e1e23c242 1815 if (++n == nent) break; /* A block of contiguous free entries is found */
glebiuskv 0:2f0e1e23c242 1816 } else {
glebiuskv 0:2f0e1e23c242 1817 n = 0; /* Not a blank entry. Restart to search */
glebiuskv 0:2f0e1e23c242 1818 }
glebiuskv 0:2f0e1e23c242 1819 res = dir_next(dp, 1);
glebiuskv 0:2f0e1e23c242 1820 } while (res == FR_OK); /* Next entry with table stretch enabled */
glebiuskv 0:2f0e1e23c242 1821 }
glebiuskv 0:2f0e1e23c242 1822
glebiuskv 0:2f0e1e23c242 1823 if (res == FR_NO_FILE) res = FR_DENIED; /* No directory entry to allocate */
glebiuskv 0:2f0e1e23c242 1824 return res;
glebiuskv 0:2f0e1e23c242 1825 }
glebiuskv 0:2f0e1e23c242 1826
glebiuskv 0:2f0e1e23c242 1827 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1828
glebiuskv 0:2f0e1e23c242 1829
glebiuskv 0:2f0e1e23c242 1830
glebiuskv 0:2f0e1e23c242 1831
glebiuskv 0:2f0e1e23c242 1832 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1833 /* FAT: Directory handling - Load/Store start cluster number */
glebiuskv 0:2f0e1e23c242 1834 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1835
glebiuskv 0:2f0e1e23c242 1836 static
glebiuskv 0:2f0e1e23c242 1837 DWORD ld_clust ( /* Returns the top cluster value of the SFN entry */
glebiuskv 0:2f0e1e23c242 1838 FATFS* fs, /* Pointer to the fs object */
glebiuskv 0:2f0e1e23c242 1839 const BYTE* dir /* Pointer to the key entry */
glebiuskv 0:2f0e1e23c242 1840 )
glebiuskv 0:2f0e1e23c242 1841 {
glebiuskv 0:2f0e1e23c242 1842 DWORD cl;
glebiuskv 0:2f0e1e23c242 1843
glebiuskv 0:2f0e1e23c242 1844 cl = ld_word(dir + DIR_FstClusLO);
glebiuskv 0:2f0e1e23c242 1845 if (fs->fs_type == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 1846 cl |= (DWORD)ld_word(dir + DIR_FstClusHI) << 16;
glebiuskv 0:2f0e1e23c242 1847 }
glebiuskv 0:2f0e1e23c242 1848
glebiuskv 0:2f0e1e23c242 1849 return cl;
glebiuskv 0:2f0e1e23c242 1850 }
glebiuskv 0:2f0e1e23c242 1851
glebiuskv 0:2f0e1e23c242 1852
glebiuskv 0:2f0e1e23c242 1853 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1854 static
glebiuskv 0:2f0e1e23c242 1855 void st_clust (
glebiuskv 0:2f0e1e23c242 1856 FATFS* fs, /* Pointer to the fs object */
glebiuskv 0:2f0e1e23c242 1857 BYTE* dir, /* Pointer to the key entry */
glebiuskv 0:2f0e1e23c242 1858 DWORD cl /* Value to be set */
glebiuskv 0:2f0e1e23c242 1859 )
glebiuskv 0:2f0e1e23c242 1860 {
glebiuskv 0:2f0e1e23c242 1861 st_word(dir + DIR_FstClusLO, (WORD)cl);
glebiuskv 0:2f0e1e23c242 1862 if (fs->fs_type == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 1863 st_word(dir + DIR_FstClusHI, (WORD)(cl >> 16));
glebiuskv 0:2f0e1e23c242 1864 }
glebiuskv 0:2f0e1e23c242 1865 }
glebiuskv 0:2f0e1e23c242 1866 #endif
glebiuskv 0:2f0e1e23c242 1867
glebiuskv 0:2f0e1e23c242 1868
glebiuskv 0:2f0e1e23c242 1869
glebiuskv 0:2f0e1e23c242 1870 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 1871 /*--------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1872 /* FAT-LFN: Compare a part of file name with an LFN entry */
glebiuskv 0:2f0e1e23c242 1873 /*--------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1874 static
glebiuskv 0:2f0e1e23c242 1875 int cmp_lfn ( /* 1:matched, 0:not matched */
glebiuskv 0:2f0e1e23c242 1876 const WCHAR* lfnbuf, /* Pointer to the LFN working buffer to be compared */
glebiuskv 0:2f0e1e23c242 1877 BYTE* dir /* Pointer to the directory entry containing the part of LFN */
glebiuskv 0:2f0e1e23c242 1878 )
glebiuskv 0:2f0e1e23c242 1879 {
glebiuskv 0:2f0e1e23c242 1880 UINT i, s;
glebiuskv 0:2f0e1e23c242 1881 WCHAR wc, uc;
glebiuskv 0:2f0e1e23c242 1882
glebiuskv 0:2f0e1e23c242 1883
glebiuskv 0:2f0e1e23c242 1884 if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO */
glebiuskv 0:2f0e1e23c242 1885
glebiuskv 0:2f0e1e23c242 1886 i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
glebiuskv 0:2f0e1e23c242 1887
glebiuskv 0:2f0e1e23c242 1888 for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
glebiuskv 0:2f0e1e23c242 1889 uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */
glebiuskv 0:2f0e1e23c242 1890 if (wc != 0) {
glebiuskv 0:2f0e1e23c242 1891 if (i >= FF_MAX_LFN || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */
glebiuskv 0:2f0e1e23c242 1892 return 0; /* Not matched */
glebiuskv 0:2f0e1e23c242 1893 }
glebiuskv 0:2f0e1e23c242 1894 wc = uc;
glebiuskv 0:2f0e1e23c242 1895 } else {
glebiuskv 0:2f0e1e23c242 1896 if (uc != 0xFFFF) return 0; /* Check filler */
glebiuskv 0:2f0e1e23c242 1897 }
glebiuskv 0:2f0e1e23c242 1898 }
glebiuskv 0:2f0e1e23c242 1899
glebiuskv 0:2f0e1e23c242 1900 if ((dir[LDIR_Ord] & LLEF) && wc && lfnbuf[i]) return 0; /* Last segment matched but different length */
glebiuskv 0:2f0e1e23c242 1901
glebiuskv 0:2f0e1e23c242 1902 return 1; /* The part of LFN matched */
glebiuskv 0:2f0e1e23c242 1903 }
glebiuskv 0:2f0e1e23c242 1904
glebiuskv 0:2f0e1e23c242 1905
glebiuskv 0:2f0e1e23c242 1906 #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 1907 /*-----------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1908 /* FAT-LFN: Pick a part of file name from an LFN entry */
glebiuskv 0:2f0e1e23c242 1909 /*-----------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1910 static
glebiuskv 0:2f0e1e23c242 1911 int pick_lfn ( /* 1:succeeded, 0:buffer overflow or invalid LFN entry */
glebiuskv 0:2f0e1e23c242 1912 WCHAR* lfnbuf, /* Pointer to the LFN working buffer */
glebiuskv 0:2f0e1e23c242 1913 BYTE* dir /* Pointer to the LFN entry */
glebiuskv 0:2f0e1e23c242 1914 )
glebiuskv 0:2f0e1e23c242 1915 {
glebiuskv 0:2f0e1e23c242 1916 UINT i, s;
glebiuskv 0:2f0e1e23c242 1917 WCHAR wc, uc;
glebiuskv 0:2f0e1e23c242 1918
glebiuskv 0:2f0e1e23c242 1919
glebiuskv 0:2f0e1e23c242 1920 if (ld_word(dir + LDIR_FstClusLO) != 0) return 0; /* Check LDIR_FstClusLO is 0 */
glebiuskv 0:2f0e1e23c242 1921
glebiuskv 0:2f0e1e23c242 1922 i = ((dir[LDIR_Ord] & ~LLEF) - 1) * 13; /* Offset in the LFN buffer */
glebiuskv 0:2f0e1e23c242 1923
glebiuskv 0:2f0e1e23c242 1924 for (wc = 1, s = 0; s < 13; s++) { /* Process all characters in the entry */
glebiuskv 0:2f0e1e23c242 1925 uc = ld_word(dir + LfnOfs[s]); /* Pick an LFN character */
glebiuskv 0:2f0e1e23c242 1926 if (wc != 0) {
glebiuskv 0:2f0e1e23c242 1927 if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 1928 lfnbuf[i++] = wc = uc; /* Store it */
glebiuskv 0:2f0e1e23c242 1929 } else {
glebiuskv 0:2f0e1e23c242 1930 if (uc != 0xFFFF) return 0; /* Check filler */
glebiuskv 0:2f0e1e23c242 1931 }
glebiuskv 0:2f0e1e23c242 1932 }
glebiuskv 0:2f0e1e23c242 1933
glebiuskv 0:2f0e1e23c242 1934 if (dir[LDIR_Ord] & LLEF) { /* Put terminator if it is the last LFN part */
glebiuskv 0:2f0e1e23c242 1935 if (i >= FF_MAX_LFN) return 0; /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 1936 lfnbuf[i] = 0;
glebiuskv 0:2f0e1e23c242 1937 }
glebiuskv 0:2f0e1e23c242 1938
glebiuskv 0:2f0e1e23c242 1939 return 1; /* The part of LFN is valid */
glebiuskv 0:2f0e1e23c242 1940 }
glebiuskv 0:2f0e1e23c242 1941 #endif
glebiuskv 0:2f0e1e23c242 1942
glebiuskv 0:2f0e1e23c242 1943
glebiuskv 0:2f0e1e23c242 1944 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1945 /*-----------------------------------------*/
glebiuskv 0:2f0e1e23c242 1946 /* FAT-LFN: Create an entry of LFN entries */
glebiuskv 0:2f0e1e23c242 1947 /*-----------------------------------------*/
glebiuskv 0:2f0e1e23c242 1948 static
glebiuskv 0:2f0e1e23c242 1949 void put_lfn (
glebiuskv 0:2f0e1e23c242 1950 const WCHAR* lfn, /* Pointer to the LFN */
glebiuskv 0:2f0e1e23c242 1951 BYTE* dir, /* Pointer to the LFN entry to be created */
glebiuskv 0:2f0e1e23c242 1952 BYTE ord, /* LFN order (1-20) */
glebiuskv 0:2f0e1e23c242 1953 BYTE sum /* Checksum of the corresponding SFN */
glebiuskv 0:2f0e1e23c242 1954 )
glebiuskv 0:2f0e1e23c242 1955 {
glebiuskv 0:2f0e1e23c242 1956 UINT i, s;
glebiuskv 0:2f0e1e23c242 1957 WCHAR wc;
glebiuskv 0:2f0e1e23c242 1958
glebiuskv 0:2f0e1e23c242 1959
glebiuskv 0:2f0e1e23c242 1960 dir[LDIR_Chksum] = sum; /* Set checksum */
glebiuskv 0:2f0e1e23c242 1961 dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
glebiuskv 0:2f0e1e23c242 1962 dir[LDIR_Type] = 0;
glebiuskv 0:2f0e1e23c242 1963 st_word(dir + LDIR_FstClusLO, 0);
glebiuskv 0:2f0e1e23c242 1964
glebiuskv 0:2f0e1e23c242 1965 i = (ord - 1) * 13; /* Get offset in the LFN working buffer */
glebiuskv 0:2f0e1e23c242 1966 s = wc = 0;
glebiuskv 0:2f0e1e23c242 1967 do {
glebiuskv 0:2f0e1e23c242 1968 if (wc != 0xFFFF) wc = lfn[i++]; /* Get an effective character */
glebiuskv 0:2f0e1e23c242 1969 st_word(dir + LfnOfs[s], wc); /* Put it */
glebiuskv 0:2f0e1e23c242 1970 if (wc == 0) wc = 0xFFFF; /* Padding characters for left locations */
glebiuskv 0:2f0e1e23c242 1971 } while (++s < 13);
glebiuskv 0:2f0e1e23c242 1972 if (wc == 0xFFFF || !lfn[i]) ord |= LLEF; /* Last LFN part is the start of LFN sequence */
glebiuskv 0:2f0e1e23c242 1973 dir[LDIR_Ord] = ord; /* Set the LFN order */
glebiuskv 0:2f0e1e23c242 1974 }
glebiuskv 0:2f0e1e23c242 1975
glebiuskv 0:2f0e1e23c242 1976 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 1977 #endif /* FF_USE_LFN */
glebiuskv 0:2f0e1e23c242 1978
glebiuskv 0:2f0e1e23c242 1979
glebiuskv 0:2f0e1e23c242 1980
glebiuskv 0:2f0e1e23c242 1981 #if FF_USE_LFN && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 1982 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1983 /* FAT-LFN: Create a Numbered SFN */
glebiuskv 0:2f0e1e23c242 1984 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 1985
glebiuskv 0:2f0e1e23c242 1986 static
glebiuskv 0:2f0e1e23c242 1987 void gen_numname (
glebiuskv 0:2f0e1e23c242 1988 BYTE* dst, /* Pointer to the buffer to store numbered SFN */
glebiuskv 0:2f0e1e23c242 1989 const BYTE* src, /* Pointer to SFN */
glebiuskv 0:2f0e1e23c242 1990 const WCHAR* lfn, /* Pointer to LFN */
glebiuskv 0:2f0e1e23c242 1991 UINT seq /* Sequence number */
glebiuskv 0:2f0e1e23c242 1992 )
glebiuskv 0:2f0e1e23c242 1993 {
glebiuskv 0:2f0e1e23c242 1994 BYTE ns[8], c;
glebiuskv 0:2f0e1e23c242 1995 UINT i, j;
glebiuskv 0:2f0e1e23c242 1996 WCHAR wc;
glebiuskv 0:2f0e1e23c242 1997 DWORD sr;
glebiuskv 0:2f0e1e23c242 1998
glebiuskv 0:2f0e1e23c242 1999
glebiuskv 0:2f0e1e23c242 2000 mem_cpy(dst, src, 11);
glebiuskv 0:2f0e1e23c242 2001
glebiuskv 0:2f0e1e23c242 2002 if (seq > 5) { /* In case of many collisions, generate a hash number instead of sequential number */
glebiuskv 0:2f0e1e23c242 2003 sr = seq;
glebiuskv 0:2f0e1e23c242 2004 while (*lfn) { /* Create a CRC */
glebiuskv 0:2f0e1e23c242 2005 wc = *lfn++;
glebiuskv 0:2f0e1e23c242 2006 for (i = 0; i < 16; i++) {
glebiuskv 0:2f0e1e23c242 2007 sr = (sr << 1) + (wc & 1);
glebiuskv 0:2f0e1e23c242 2008 wc >>= 1;
glebiuskv 0:2f0e1e23c242 2009 if (sr & 0x10000) sr ^= 0x11021;
glebiuskv 0:2f0e1e23c242 2010 }
glebiuskv 0:2f0e1e23c242 2011 }
glebiuskv 0:2f0e1e23c242 2012 seq = (UINT)sr;
glebiuskv 0:2f0e1e23c242 2013 }
glebiuskv 0:2f0e1e23c242 2014
glebiuskv 0:2f0e1e23c242 2015 /* itoa (hexdecimal) */
glebiuskv 0:2f0e1e23c242 2016 i = 7;
glebiuskv 0:2f0e1e23c242 2017 do {
glebiuskv 0:2f0e1e23c242 2018 c = (BYTE)((seq % 16) + '0');
glebiuskv 0:2f0e1e23c242 2019 if (c > '9') c += 7;
glebiuskv 0:2f0e1e23c242 2020 ns[i--] = c;
glebiuskv 0:2f0e1e23c242 2021 seq /= 16;
glebiuskv 0:2f0e1e23c242 2022 } while (seq);
glebiuskv 0:2f0e1e23c242 2023 ns[i] = '~';
glebiuskv 0:2f0e1e23c242 2024
glebiuskv 0:2f0e1e23c242 2025 /* Append the number to the SFN body */
glebiuskv 0:2f0e1e23c242 2026 for (j = 0; j < i && dst[j] != ' '; j++) {
glebiuskv 0:2f0e1e23c242 2027 if (dbc_1st(dst[j])) {
glebiuskv 0:2f0e1e23c242 2028 if (j == i - 1) break;
glebiuskv 0:2f0e1e23c242 2029 j++;
glebiuskv 0:2f0e1e23c242 2030 }
glebiuskv 0:2f0e1e23c242 2031 }
glebiuskv 0:2f0e1e23c242 2032 do {
glebiuskv 0:2f0e1e23c242 2033 dst[j++] = (i < 8) ? ns[i++] : ' ';
glebiuskv 0:2f0e1e23c242 2034 } while (j < 8);
glebiuskv 0:2f0e1e23c242 2035 }
glebiuskv 0:2f0e1e23c242 2036 #endif /* FF_USE_LFN && !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 2037
glebiuskv 0:2f0e1e23c242 2038
glebiuskv 0:2f0e1e23c242 2039
glebiuskv 0:2f0e1e23c242 2040 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2041 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2042 /* FAT-LFN: Calculate checksum of an SFN entry */
glebiuskv 0:2f0e1e23c242 2043 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2044
glebiuskv 0:2f0e1e23c242 2045 static
glebiuskv 0:2f0e1e23c242 2046 BYTE sum_sfn (
glebiuskv 0:2f0e1e23c242 2047 const BYTE* dir /* Pointer to the SFN entry */
glebiuskv 0:2f0e1e23c242 2048 )
glebiuskv 0:2f0e1e23c242 2049 {
glebiuskv 0:2f0e1e23c242 2050 BYTE sum = 0;
glebiuskv 0:2f0e1e23c242 2051 UINT n = 11;
glebiuskv 0:2f0e1e23c242 2052
glebiuskv 0:2f0e1e23c242 2053 do {
glebiuskv 0:2f0e1e23c242 2054 sum = (sum >> 1) + (sum << 7) + *dir++;
glebiuskv 0:2f0e1e23c242 2055 } while (--n);
glebiuskv 0:2f0e1e23c242 2056 return sum;
glebiuskv 0:2f0e1e23c242 2057 }
glebiuskv 0:2f0e1e23c242 2058
glebiuskv 0:2f0e1e23c242 2059 #endif /* FF_USE_LFN */
glebiuskv 0:2f0e1e23c242 2060
glebiuskv 0:2f0e1e23c242 2061
glebiuskv 0:2f0e1e23c242 2062
glebiuskv 0:2f0e1e23c242 2063 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2064 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2065 /* exFAT: Checksum */
glebiuskv 0:2f0e1e23c242 2066 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2067
glebiuskv 0:2f0e1e23c242 2068 static
glebiuskv 0:2f0e1e23c242 2069 WORD xdir_sum ( /* Get checksum of the directoly entry block */
glebiuskv 0:2f0e1e23c242 2070 const BYTE* dir /* Directory entry block to be calculated */
glebiuskv 0:2f0e1e23c242 2071 )
glebiuskv 0:2f0e1e23c242 2072 {
glebiuskv 0:2f0e1e23c242 2073 UINT i, szblk;
glebiuskv 0:2f0e1e23c242 2074 WORD sum;
glebiuskv 0:2f0e1e23c242 2075
glebiuskv 0:2f0e1e23c242 2076
glebiuskv 0:2f0e1e23c242 2077 szblk = (dir[XDIR_NumSec] + 1) * SZDIRE;
glebiuskv 0:2f0e1e23c242 2078 for (i = sum = 0; i < szblk; i++) {
glebiuskv 0:2f0e1e23c242 2079 if (i == XDIR_SetSum) { /* Skip sum field */
glebiuskv 0:2f0e1e23c242 2080 i++;
glebiuskv 0:2f0e1e23c242 2081 } else {
glebiuskv 0:2f0e1e23c242 2082 sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + dir[i];
glebiuskv 0:2f0e1e23c242 2083 }
glebiuskv 0:2f0e1e23c242 2084 }
glebiuskv 0:2f0e1e23c242 2085 return sum;
glebiuskv 0:2f0e1e23c242 2086 }
glebiuskv 0:2f0e1e23c242 2087
glebiuskv 0:2f0e1e23c242 2088
glebiuskv 0:2f0e1e23c242 2089
glebiuskv 0:2f0e1e23c242 2090 static
glebiuskv 0:2f0e1e23c242 2091 WORD xname_sum ( /* Get check sum (to be used as hash) of the name */
glebiuskv 0:2f0e1e23c242 2092 const WCHAR* name /* File name to be calculated */
glebiuskv 0:2f0e1e23c242 2093 )
glebiuskv 0:2f0e1e23c242 2094 {
glebiuskv 0:2f0e1e23c242 2095 WCHAR chr;
glebiuskv 0:2f0e1e23c242 2096 WORD sum = 0;
glebiuskv 0:2f0e1e23c242 2097
glebiuskv 0:2f0e1e23c242 2098
glebiuskv 0:2f0e1e23c242 2099 while ((chr = *name++) != 0) {
glebiuskv 0:2f0e1e23c242 2100 chr = (WCHAR)ff_wtoupper(chr); /* File name needs to be upper-case converted */
glebiuskv 0:2f0e1e23c242 2101 sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr & 0xFF);
glebiuskv 0:2f0e1e23c242 2102 sum = ((sum & 1) ? 0x8000 : 0) + (sum >> 1) + (chr >> 8);
glebiuskv 0:2f0e1e23c242 2103 }
glebiuskv 0:2f0e1e23c242 2104 return sum;
glebiuskv 0:2f0e1e23c242 2105 }
glebiuskv 0:2f0e1e23c242 2106
glebiuskv 0:2f0e1e23c242 2107
glebiuskv 0:2f0e1e23c242 2108 #if !FF_FS_READONLY && FF_USE_MKFS
glebiuskv 0:2f0e1e23c242 2109 static
glebiuskv 0:2f0e1e23c242 2110 DWORD xsum32 (
glebiuskv 0:2f0e1e23c242 2111 BYTE dat, /* Byte to be calculated */
glebiuskv 0:2f0e1e23c242 2112 DWORD sum /* Previous sum */
glebiuskv 0:2f0e1e23c242 2113 )
glebiuskv 0:2f0e1e23c242 2114 {
glebiuskv 0:2f0e1e23c242 2115 sum = ((sum & 1) ? 0x80000000 : 0) + (sum >> 1) + dat;
glebiuskv 0:2f0e1e23c242 2116 return sum;
glebiuskv 0:2f0e1e23c242 2117 }
glebiuskv 0:2f0e1e23c242 2118 #endif
glebiuskv 0:2f0e1e23c242 2119
glebiuskv 0:2f0e1e23c242 2120
glebiuskv 0:2f0e1e23c242 2121 #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2
glebiuskv 0:2f0e1e23c242 2122 /*------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2123 /* exFAT: Get object information from a directory block */
glebiuskv 0:2f0e1e23c242 2124 /*------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2125
glebiuskv 0:2f0e1e23c242 2126 static
glebiuskv 0:2f0e1e23c242 2127 void get_xfileinfo (
glebiuskv 0:2f0e1e23c242 2128 BYTE* dirb, /* Pointer to the direcotry entry block 85+C0+C1s */
glebiuskv 0:2f0e1e23c242 2129 FILINFO* fno /* Buffer to store the extracted file information */
glebiuskv 0:2f0e1e23c242 2130 )
glebiuskv 0:2f0e1e23c242 2131 {
glebiuskv 0:2f0e1e23c242 2132 WCHAR wc, hs;
glebiuskv 0:2f0e1e23c242 2133 UINT di, si, nc;
glebiuskv 0:2f0e1e23c242 2134
glebiuskv 0:2f0e1e23c242 2135 /* Get file name from the entry block */
glebiuskv 0:2f0e1e23c242 2136 si = SZDIRE * 2; /* 1st C1 entry */
glebiuskv 0:2f0e1e23c242 2137 nc = hs = di = 0;
glebiuskv 0:2f0e1e23c242 2138 while (nc < dirb[XDIR_NumName]) {
glebiuskv 0:2f0e1e23c242 2139 if (si >= MAXDIRB(FF_MAX_LFN)) { di = 0; break; } /* Truncated directory block? */
glebiuskv 0:2f0e1e23c242 2140 if ((si % SZDIRE) == 0) si += 2; /* Skip entry type field */
glebiuskv 0:2f0e1e23c242 2141 wc = ld_word(dirb + si); si += 2; nc++; /* Get a character */
glebiuskv 0:2f0e1e23c242 2142 if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */
glebiuskv 0:2f0e1e23c242 2143 hs = wc; continue; /* Get low surrogate */
glebiuskv 0:2f0e1e23c242 2144 }
glebiuskv 0:2f0e1e23c242 2145 wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in UTF-16 or UTF-8 encoding */
glebiuskv 0:2f0e1e23c242 2146 if (wc == 0) { di = 0; break; } /* Buffer overflow or wrong encoding? */
glebiuskv 0:2f0e1e23c242 2147 di += wc;
glebiuskv 0:2f0e1e23c242 2148 hs = 0;
glebiuskv 0:2f0e1e23c242 2149 }
glebiuskv 0:2f0e1e23c242 2150 if (hs != 0) di = 0; /* Broken surrogate pair? */
glebiuskv 0:2f0e1e23c242 2151 if (di == 0) fno->fname[di++] = '?'; /* Inaccessible object name? */
glebiuskv 0:2f0e1e23c242 2152 fno->fname[di] = 0; /* Terminate the name */
glebiuskv 0:2f0e1e23c242 2153 fno->altname[0] = 0; /* exFAT does not have SFN */
glebiuskv 0:2f0e1e23c242 2154
glebiuskv 0:2f0e1e23c242 2155 fno->fattrib = dirb[XDIR_Attr]; /* Attribute */
glebiuskv 0:2f0e1e23c242 2156 fno->fsize = (fno->fattrib & AM_DIR) ? 0 : ld_qword(dirb + XDIR_FileSize); /* Size */
glebiuskv 0:2f0e1e23c242 2157 fno->ftime = ld_word(dirb + XDIR_ModTime + 0); /* Time */
glebiuskv 0:2f0e1e23c242 2158 fno->fdate = ld_word(dirb + XDIR_ModTime + 2); /* Date */
glebiuskv 0:2f0e1e23c242 2159 }
glebiuskv 0:2f0e1e23c242 2160
glebiuskv 0:2f0e1e23c242 2161 #endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */
glebiuskv 0:2f0e1e23c242 2162
glebiuskv 0:2f0e1e23c242 2163
glebiuskv 0:2f0e1e23c242 2164 /*-----------------------------------*/
glebiuskv 0:2f0e1e23c242 2165 /* exFAT: Get a directry entry block */
glebiuskv 0:2f0e1e23c242 2166 /*-----------------------------------*/
glebiuskv 0:2f0e1e23c242 2167
glebiuskv 0:2f0e1e23c242 2168 static
glebiuskv 0:2f0e1e23c242 2169 FRESULT load_xdir ( /* FR_INT_ERR: invalid entry block */
glebiuskv 0:2f0e1e23c242 2170 FATFS_DIR* dp /* Reading direcotry object pointing top of the entry block to load */
glebiuskv 0:2f0e1e23c242 2171 )
glebiuskv 0:2f0e1e23c242 2172 {
glebiuskv 0:2f0e1e23c242 2173 FRESULT res;
glebiuskv 0:2f0e1e23c242 2174 UINT i, sz_ent;
glebiuskv 0:2f0e1e23c242 2175 BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the on-memory direcotry entry block 85+C0+C1s */
glebiuskv 0:2f0e1e23c242 2176
glebiuskv 0:2f0e1e23c242 2177
glebiuskv 0:2f0e1e23c242 2178 /* Load 85 entry */
glebiuskv 0:2f0e1e23c242 2179 res = move_window(dp->obj.fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2180 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2181 if (dp->dir[XDIR_Type] != 0x85) return FR_INT_ERR; /* Invalid order */
glebiuskv 0:2f0e1e23c242 2182 mem_cpy(dirb + 0 * SZDIRE, dp->dir, SZDIRE);
glebiuskv 0:2f0e1e23c242 2183 sz_ent = (dirb[XDIR_NumSec] + 1) * SZDIRE;
glebiuskv 0:2f0e1e23c242 2184 if (sz_ent < 3 * SZDIRE || sz_ent > 19 * SZDIRE) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 2185
glebiuskv 0:2f0e1e23c242 2186 /* Load C0 entry */
glebiuskv 0:2f0e1e23c242 2187 res = dir_next(dp, 0);
glebiuskv 0:2f0e1e23c242 2188 if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */
glebiuskv 0:2f0e1e23c242 2189 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2190 res = move_window(dp->obj.fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2191 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2192 if (dp->dir[XDIR_Type] != 0xC0) return FR_INT_ERR; /* Invalid order */
glebiuskv 0:2f0e1e23c242 2193 mem_cpy(dirb + 1 * SZDIRE, dp->dir, SZDIRE);
glebiuskv 0:2f0e1e23c242 2194 if (MAXDIRB(dirb[XDIR_NumName]) > sz_ent) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 2195
glebiuskv 0:2f0e1e23c242 2196 /* Load C1 entries */
glebiuskv 0:2f0e1e23c242 2197 i = 2 * SZDIRE; /* C1 offset to load */
glebiuskv 0:2f0e1e23c242 2198 do {
glebiuskv 0:2f0e1e23c242 2199 res = dir_next(dp, 0);
glebiuskv 0:2f0e1e23c242 2200 if (res == FR_NO_FILE) res = FR_INT_ERR; /* It cannot be */
glebiuskv 0:2f0e1e23c242 2201 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2202 res = move_window(dp->obj.fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2203 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2204 if (dp->dir[XDIR_Type] != 0xC1) return FR_INT_ERR; /* Invalid order */
glebiuskv 0:2f0e1e23c242 2205 if (i < MAXDIRB(FF_MAX_LFN)) mem_cpy(dirb + i, dp->dir, SZDIRE);
glebiuskv 0:2f0e1e23c242 2206 } while ((i += SZDIRE) < sz_ent);
glebiuskv 0:2f0e1e23c242 2207
glebiuskv 0:2f0e1e23c242 2208 /* Sanity check (do it for only accessible object) */
glebiuskv 0:2f0e1e23c242 2209 if (i <= MAXDIRB(FF_MAX_LFN)) {
glebiuskv 0:2f0e1e23c242 2210 if (xdir_sum(dirb) != ld_word(dirb + XDIR_SetSum)) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 2211 }
glebiuskv 0:2f0e1e23c242 2212 return FR_OK;
glebiuskv 0:2f0e1e23c242 2213 }
glebiuskv 0:2f0e1e23c242 2214
glebiuskv 0:2f0e1e23c242 2215
glebiuskv 0:2f0e1e23c242 2216 /*------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2217 /* exFAT: Initialize object allocation info with loaded entry block */
glebiuskv 0:2f0e1e23c242 2218 /*------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2219
glebiuskv 0:2f0e1e23c242 2220 static
glebiuskv 0:2f0e1e23c242 2221 void init_alloc_info (
glebiuskv 0:2f0e1e23c242 2222 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 2223 FFOBJID* obj /* Object allocation information to be initialized */
glebiuskv 0:2f0e1e23c242 2224 )
glebiuskv 0:2f0e1e23c242 2225 {
glebiuskv 0:2f0e1e23c242 2226 obj->sclust = ld_dword(fs->dirbuf + XDIR_FstClus); /* Start cluster */
glebiuskv 0:2f0e1e23c242 2227 obj->objsize = ld_qword(fs->dirbuf + XDIR_FileSize); /* Size */
glebiuskv 0:2f0e1e23c242 2228 obj->stat = fs->dirbuf[XDIR_GenFlags] & 2; /* Allocation status */
glebiuskv 0:2f0e1e23c242 2229 obj->n_frag = 0; /* No last fragment info */
glebiuskv 0:2f0e1e23c242 2230 }
glebiuskv 0:2f0e1e23c242 2231
glebiuskv 0:2f0e1e23c242 2232
glebiuskv 0:2f0e1e23c242 2233
glebiuskv 0:2f0e1e23c242 2234 #if !FF_FS_READONLY || FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 2235 /*------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2236 /* exFAT: Load the object's directory entry block */
glebiuskv 0:2f0e1e23c242 2237 /*------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2238 static
glebiuskv 0:2f0e1e23c242 2239 FRESULT load_obj_xdir (
glebiuskv 0:2f0e1e23c242 2240 FATFS_DIR* dp, /* Blank directory object to be used to access containing direcotry */
glebiuskv 0:2f0e1e23c242 2241 const FFOBJID* obj /* Object with its containing directory information */
glebiuskv 0:2f0e1e23c242 2242 )
glebiuskv 0:2f0e1e23c242 2243 {
glebiuskv 0:2f0e1e23c242 2244 FRESULT res;
glebiuskv 0:2f0e1e23c242 2245
glebiuskv 0:2f0e1e23c242 2246 /* Open object containing directory */
glebiuskv 0:2f0e1e23c242 2247 dp->obj.fs = obj->fs;
glebiuskv 0:2f0e1e23c242 2248 dp->obj.sclust = obj->c_scl;
glebiuskv 0:2f0e1e23c242 2249 dp->obj.stat = (BYTE)obj->c_size;
glebiuskv 0:2f0e1e23c242 2250 dp->obj.objsize = obj->c_size & 0xFFFFFF00;
glebiuskv 0:2f0e1e23c242 2251 dp->obj.n_frag = 0;
glebiuskv 0:2f0e1e23c242 2252 dp->blk_ofs = obj->c_ofs;
glebiuskv 0:2f0e1e23c242 2253
glebiuskv 0:2f0e1e23c242 2254 res = dir_sdi(dp, dp->blk_ofs); /* Goto object's entry block */
glebiuskv 0:2f0e1e23c242 2255 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2256 res = load_xdir(dp); /* Load the object's entry block */
glebiuskv 0:2f0e1e23c242 2257 }
glebiuskv 0:2f0e1e23c242 2258 return res;
glebiuskv 0:2f0e1e23c242 2259 }
glebiuskv 0:2f0e1e23c242 2260 #endif
glebiuskv 0:2f0e1e23c242 2261
glebiuskv 0:2f0e1e23c242 2262
glebiuskv 0:2f0e1e23c242 2263 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 2264 /*----------------------------------------*/
glebiuskv 0:2f0e1e23c242 2265 /* exFAT: Store the directory entry block */
glebiuskv 0:2f0e1e23c242 2266 /*----------------------------------------*/
glebiuskv 0:2f0e1e23c242 2267 static
glebiuskv 0:2f0e1e23c242 2268 FRESULT store_xdir (
glebiuskv 0:2f0e1e23c242 2269 FATFS_DIR* dp /* Pointer to the direcotry object */
glebiuskv 0:2f0e1e23c242 2270 )
glebiuskv 0:2f0e1e23c242 2271 {
glebiuskv 0:2f0e1e23c242 2272 FRESULT res;
glebiuskv 0:2f0e1e23c242 2273 UINT nent;
glebiuskv 0:2f0e1e23c242 2274 BYTE* dirb = dp->obj.fs->dirbuf; /* Pointer to the direcotry entry block 85+C0+C1s */
glebiuskv 0:2f0e1e23c242 2275
glebiuskv 0:2f0e1e23c242 2276 /* Create set sum */
glebiuskv 0:2f0e1e23c242 2277 st_word(dirb + XDIR_SetSum, xdir_sum(dirb));
glebiuskv 0:2f0e1e23c242 2278 nent = dirb[XDIR_NumSec] + 1;
glebiuskv 0:2f0e1e23c242 2279
glebiuskv 0:2f0e1e23c242 2280 /* Store the direcotry entry block to the directory */
glebiuskv 0:2f0e1e23c242 2281 res = dir_sdi(dp, dp->blk_ofs);
glebiuskv 0:2f0e1e23c242 2282 while (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2283 res = move_window(dp->obj.fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2284 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2285 mem_cpy(dp->dir, dirb, SZDIRE);
glebiuskv 0:2f0e1e23c242 2286 dp->obj.fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 2287 if (--nent == 0) break;
glebiuskv 0:2f0e1e23c242 2288 dirb += SZDIRE;
glebiuskv 0:2f0e1e23c242 2289 res = dir_next(dp, 0);
glebiuskv 0:2f0e1e23c242 2290 }
glebiuskv 0:2f0e1e23c242 2291 return (res == FR_OK || res == FR_DISK_ERR) ? res : FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 2292 }
glebiuskv 0:2f0e1e23c242 2293
glebiuskv 0:2f0e1e23c242 2294
glebiuskv 0:2f0e1e23c242 2295
glebiuskv 0:2f0e1e23c242 2296 /*-------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2297 /* exFAT: Create a new directory enrty block */
glebiuskv 0:2f0e1e23c242 2298 /*-------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2299
glebiuskv 0:2f0e1e23c242 2300 static
glebiuskv 0:2f0e1e23c242 2301 void create_xdir (
glebiuskv 0:2f0e1e23c242 2302 BYTE* dirb, /* Pointer to the direcotry entry block buffer */
glebiuskv 0:2f0e1e23c242 2303 const WCHAR* lfn /* Pointer to the object name */
glebiuskv 0:2f0e1e23c242 2304 )
glebiuskv 0:2f0e1e23c242 2305 {
glebiuskv 0:2f0e1e23c242 2306 UINT i;
glebiuskv 0:2f0e1e23c242 2307 BYTE nc1, nlen;
glebiuskv 0:2f0e1e23c242 2308 WCHAR wc;
glebiuskv 0:2f0e1e23c242 2309
glebiuskv 0:2f0e1e23c242 2310
glebiuskv 0:2f0e1e23c242 2311 /* Create 85,C0 entry */
glebiuskv 0:2f0e1e23c242 2312 mem_set(dirb, 0, 2 * SZDIRE);
glebiuskv 0:2f0e1e23c242 2313 dirb[0 * SZDIRE + XDIR_Type] = 0x85; /* 85 entry */
glebiuskv 0:2f0e1e23c242 2314 dirb[1 * SZDIRE + XDIR_Type] = 0xC0; /* C0 entry */
glebiuskv 0:2f0e1e23c242 2315
glebiuskv 0:2f0e1e23c242 2316 /* Create C1 entries */
glebiuskv 0:2f0e1e23c242 2317 i = SZDIRE * 2; /* Top of C1 entries */
glebiuskv 0:2f0e1e23c242 2318 nlen = nc1 = 0; wc = 1;
glebiuskv 0:2f0e1e23c242 2319 do {
glebiuskv 0:2f0e1e23c242 2320 dirb[i++] = 0xC1; dirb[i++] = 0; /* Entry type C1 */
glebiuskv 0:2f0e1e23c242 2321 do { /* Fill name field */
glebiuskv 0:2f0e1e23c242 2322 if (wc != 0 && (wc = lfn[nlen]) != 0) nlen++; /* Get a character if exist */
glebiuskv 0:2f0e1e23c242 2323 st_word(dirb + i, wc); /* Store it */
glebiuskv 0:2f0e1e23c242 2324 i += 2;
glebiuskv 0:2f0e1e23c242 2325 } while (i % SZDIRE != 0);
glebiuskv 0:2f0e1e23c242 2326 nc1++;
glebiuskv 0:2f0e1e23c242 2327 } while (lfn[nlen]); /* Fill next entry if any char follows */
glebiuskv 0:2f0e1e23c242 2328
glebiuskv 0:2f0e1e23c242 2329 dirb[XDIR_NumName] = nlen; /* Set name length */
glebiuskv 0:2f0e1e23c242 2330 dirb[XDIR_NumSec] = 1 + nc1; /* Set secondary count (C0 + C1s) */
glebiuskv 0:2f0e1e23c242 2331 st_word(dirb + XDIR_NameHash, xname_sum(lfn)); /* Set name hash */
glebiuskv 0:2f0e1e23c242 2332 }
glebiuskv 0:2f0e1e23c242 2333
glebiuskv 0:2f0e1e23c242 2334 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 2335 #endif /* FF_FS_EXFAT */
glebiuskv 0:2f0e1e23c242 2336
glebiuskv 0:2f0e1e23c242 2337
glebiuskv 0:2f0e1e23c242 2338
glebiuskv 0:2f0e1e23c242 2339 #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 || FF_USE_LABEL || FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2340 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2341 /* Read an object from the directory */
glebiuskv 0:2f0e1e23c242 2342 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2343
glebiuskv 0:2f0e1e23c242 2344 #define dir_read_file(dp) dir_read(dp, 0)
glebiuskv 0:2f0e1e23c242 2345 #define dir_read_label(dp) dir_read(dp, 1)
glebiuskv 0:2f0e1e23c242 2346
glebiuskv 0:2f0e1e23c242 2347 static
glebiuskv 0:2f0e1e23c242 2348 FRESULT dir_read (
glebiuskv 0:2f0e1e23c242 2349 FATFS_DIR* dp, /* Pointer to the directory object */
glebiuskv 0:2f0e1e23c242 2350 int vol /* Filtered by 0:file/directory or 1:volume label */
glebiuskv 0:2f0e1e23c242 2351 )
glebiuskv 0:2f0e1e23c242 2352 {
glebiuskv 0:2f0e1e23c242 2353 FRESULT res = FR_NO_FILE;
glebiuskv 0:2f0e1e23c242 2354 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 2355 BYTE a, c;
glebiuskv 0:2f0e1e23c242 2356 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2357 BYTE ord = 0xFF, sum = 0xFF;
glebiuskv 0:2f0e1e23c242 2358 #endif
glebiuskv 0:2f0e1e23c242 2359
glebiuskv 0:2f0e1e23c242 2360 while (dp->sect) {
glebiuskv 0:2f0e1e23c242 2361 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2362 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2363 c = dp->dir[DIR_Name]; /* Test for the entry type */
glebiuskv 0:2f0e1e23c242 2364 if (c == 0) {
glebiuskv 0:2f0e1e23c242 2365 res = FR_NO_FILE; break; /* Reached to end of the directory */
glebiuskv 0:2f0e1e23c242 2366 }
glebiuskv 0:2f0e1e23c242 2367 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2368 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 2369 if (FF_USE_LABEL && vol) {
glebiuskv 0:2f0e1e23c242 2370 if (c == 0x83) break; /* Volume label entry? */
glebiuskv 0:2f0e1e23c242 2371 } else {
glebiuskv 0:2f0e1e23c242 2372 if (c == 0x85) { /* Start of the file entry block? */
glebiuskv 0:2f0e1e23c242 2373 dp->blk_ofs = dp->dptr; /* Get location of the block */
glebiuskv 0:2f0e1e23c242 2374 res = load_xdir(dp); /* Load the entry block */
glebiuskv 0:2f0e1e23c242 2375 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2376 dp->obj.attr = fs->dirbuf[XDIR_Attr] & AM_MASK; /* Get attribute */
glebiuskv 0:2f0e1e23c242 2377 }
glebiuskv 0:2f0e1e23c242 2378 break;
glebiuskv 0:2f0e1e23c242 2379 }
glebiuskv 0:2f0e1e23c242 2380 }
glebiuskv 0:2f0e1e23c242 2381 } else
glebiuskv 0:2f0e1e23c242 2382 #endif
glebiuskv 0:2f0e1e23c242 2383 { /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 2384 dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK; /* Get attribute */
glebiuskv 0:2f0e1e23c242 2385 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2386 if (c == DDEM || c == '.' || (int)((a & ~AM_ARC) == AM_VOL) != vol) { /* An entry without valid data */
glebiuskv 0:2f0e1e23c242 2387 ord = 0xFF;
glebiuskv 0:2f0e1e23c242 2388 } else {
glebiuskv 0:2f0e1e23c242 2389 if (a == AM_LFN) { /* An LFN entry is found */
glebiuskv 0:2f0e1e23c242 2390 if (c & LLEF) { /* Is it start of an LFN sequence? */
glebiuskv 0:2f0e1e23c242 2391 sum = dp->dir[LDIR_Chksum];
glebiuskv 0:2f0e1e23c242 2392 c &= (BYTE)~LLEF; ord = c;
glebiuskv 0:2f0e1e23c242 2393 dp->blk_ofs = dp->dptr;
glebiuskv 0:2f0e1e23c242 2394 }
glebiuskv 0:2f0e1e23c242 2395 /* Check LFN validity and capture it */
glebiuskv 0:2f0e1e23c242 2396 ord = (c == ord && sum == dp->dir[LDIR_Chksum] && pick_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;
glebiuskv 0:2f0e1e23c242 2397 } else { /* An SFN entry is found */
glebiuskv 0:2f0e1e23c242 2398 if (ord != 0 || sum != sum_sfn(dp->dir)) { /* Is there a valid LFN? */
glebiuskv 0:2f0e1e23c242 2399 dp->blk_ofs = 0xFFFFFFFF; /* It has no LFN. */
glebiuskv 0:2f0e1e23c242 2400 }
glebiuskv 0:2f0e1e23c242 2401 break;
glebiuskv 0:2f0e1e23c242 2402 }
glebiuskv 0:2f0e1e23c242 2403 }
glebiuskv 0:2f0e1e23c242 2404 #else /* Non LFN configuration */
glebiuskv 0:2f0e1e23c242 2405 if (c != DDEM && c != '.' && a != AM_LFN && (int)((a & ~AM_ARC) == AM_VOL) == vol) { /* Is it a valid entry? */
glebiuskv 0:2f0e1e23c242 2406 break;
glebiuskv 0:2f0e1e23c242 2407 }
glebiuskv 0:2f0e1e23c242 2408 #endif
glebiuskv 0:2f0e1e23c242 2409 }
glebiuskv 0:2f0e1e23c242 2410 res = dir_next(dp, 0); /* Next entry */
glebiuskv 0:2f0e1e23c242 2411 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2412 }
glebiuskv 0:2f0e1e23c242 2413
glebiuskv 0:2f0e1e23c242 2414 if (res != FR_OK) dp->sect = 0; /* Terminate the read operation on error or EOT */
glebiuskv 0:2f0e1e23c242 2415 return res;
glebiuskv 0:2f0e1e23c242 2416 }
glebiuskv 0:2f0e1e23c242 2417
glebiuskv 0:2f0e1e23c242 2418 #endif /* FF_FS_MINIMIZE <= 1 || FF_USE_LABEL || FF_FS_RPATH >= 2 */
glebiuskv 0:2f0e1e23c242 2419
glebiuskv 0:2f0e1e23c242 2420
glebiuskv 0:2f0e1e23c242 2421
glebiuskv 0:2f0e1e23c242 2422 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2423 /* Directory handling - Find an object in the directory */
glebiuskv 0:2f0e1e23c242 2424 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2425
glebiuskv 0:2f0e1e23c242 2426 static
glebiuskv 0:2f0e1e23c242 2427 FRESULT dir_find ( /* FR_OK(0):succeeded, !=0:error */
glebiuskv 0:2f0e1e23c242 2428 FATFS_DIR* dp /* Pointer to the directory object with the file name */
glebiuskv 0:2f0e1e23c242 2429 )
glebiuskv 0:2f0e1e23c242 2430 {
glebiuskv 0:2f0e1e23c242 2431 FRESULT res;
glebiuskv 0:2f0e1e23c242 2432 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 2433 BYTE c;
glebiuskv 0:2f0e1e23c242 2434 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2435 BYTE a, ord, sum;
glebiuskv 0:2f0e1e23c242 2436 #endif
glebiuskv 0:2f0e1e23c242 2437
glebiuskv 0:2f0e1e23c242 2438 res = dir_sdi(dp, 0); /* Rewind directory object */
glebiuskv 0:2f0e1e23c242 2439 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2440 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2441 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 2442 BYTE nc;
glebiuskv 0:2f0e1e23c242 2443 UINT di, ni;
glebiuskv 0:2f0e1e23c242 2444 WORD hash = xname_sum(fs->lfnbuf); /* Hash value of the name to find */
glebiuskv 0:2f0e1e23c242 2445
glebiuskv 0:2f0e1e23c242 2446 while ((res = dir_read_file(dp)) == FR_OK) { /* Read an item */
glebiuskv 0:2f0e1e23c242 2447 #if FF_MAX_LFN < 255
glebiuskv 0:2f0e1e23c242 2448 if (fs->dirbuf[XDIR_NumName] > FF_MAX_LFN) continue; /* Skip comparison if inaccessible object name */
glebiuskv 0:2f0e1e23c242 2449 #endif
glebiuskv 0:2f0e1e23c242 2450 if (ld_word(fs->dirbuf + XDIR_NameHash) != hash) continue; /* Skip comparison if hash mismatched */
glebiuskv 0:2f0e1e23c242 2451 for (nc = fs->dirbuf[XDIR_NumName], di = SZDIRE * 2, ni = 0; nc; nc--, di += 2, ni++) { /* Compare the name */
glebiuskv 0:2f0e1e23c242 2452 if ((di % SZDIRE) == 0) di += 2;
glebiuskv 0:2f0e1e23c242 2453 if (ff_wtoupper(ld_word(fs->dirbuf + di)) != ff_wtoupper(fs->lfnbuf[ni])) break;
glebiuskv 0:2f0e1e23c242 2454 }
glebiuskv 0:2f0e1e23c242 2455 if (nc == 0 && !fs->lfnbuf[ni]) break; /* Name matched? */
glebiuskv 0:2f0e1e23c242 2456 }
glebiuskv 0:2f0e1e23c242 2457 return res;
glebiuskv 0:2f0e1e23c242 2458 }
glebiuskv 0:2f0e1e23c242 2459 #endif
glebiuskv 0:2f0e1e23c242 2460 /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 2461 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2462 ord = sum = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
glebiuskv 0:2f0e1e23c242 2463 #endif
glebiuskv 0:2f0e1e23c242 2464 do {
glebiuskv 0:2f0e1e23c242 2465 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2466 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2467 c = dp->dir[DIR_Name];
glebiuskv 0:2f0e1e23c242 2468 if (c == 0) { res = FR_NO_FILE; break; } /* Reached to end of table */
glebiuskv 0:2f0e1e23c242 2469 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2470 dp->obj.attr = a = dp->dir[DIR_Attr] & AM_MASK;
glebiuskv 0:2f0e1e23c242 2471 if (c == DDEM || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
glebiuskv 0:2f0e1e23c242 2472 ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
glebiuskv 0:2f0e1e23c242 2473 } else {
glebiuskv 0:2f0e1e23c242 2474 if (a == AM_LFN) { /* An LFN entry is found */
glebiuskv 0:2f0e1e23c242 2475 if (!(dp->fn[NSFLAG] & NS_NOLFN)) {
glebiuskv 0:2f0e1e23c242 2476 if (c & LLEF) { /* Is it start of LFN sequence? */
glebiuskv 0:2f0e1e23c242 2477 sum = dp->dir[LDIR_Chksum];
glebiuskv 0:2f0e1e23c242 2478 c &= (BYTE)~LLEF; ord = c; /* LFN start order */
glebiuskv 0:2f0e1e23c242 2479 dp->blk_ofs = dp->dptr; /* Start offset of LFN */
glebiuskv 0:2f0e1e23c242 2480 }
glebiuskv 0:2f0e1e23c242 2481 /* Check validity of the LFN entry and compare it with given name */
glebiuskv 0:2f0e1e23c242 2482 ord = (c == ord && sum == dp->dir[LDIR_Chksum] && cmp_lfn(fs->lfnbuf, dp->dir)) ? ord - 1 : 0xFF;
glebiuskv 0:2f0e1e23c242 2483 }
glebiuskv 0:2f0e1e23c242 2484 } else { /* An SFN entry is found */
glebiuskv 0:2f0e1e23c242 2485 if (ord == 0 && sum == sum_sfn(dp->dir)) break; /* LFN matched? */
glebiuskv 0:2f0e1e23c242 2486 if (!(dp->fn[NSFLAG] & NS_LOSS) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* SFN matched? */
glebiuskv 0:2f0e1e23c242 2487 ord = 0xFF; dp->blk_ofs = 0xFFFFFFFF; /* Reset LFN sequence */
glebiuskv 0:2f0e1e23c242 2488 }
glebiuskv 0:2f0e1e23c242 2489 }
glebiuskv 0:2f0e1e23c242 2490 #else /* Non LFN configuration */
glebiuskv 0:2f0e1e23c242 2491 dp->obj.attr = dp->dir[DIR_Attr] & AM_MASK;
glebiuskv 0:2f0e1e23c242 2492 if (!(dp->dir[DIR_Attr] & AM_VOL) && !mem_cmp(dp->dir, dp->fn, 11)) break; /* Is it a valid entry? */
glebiuskv 0:2f0e1e23c242 2493 #endif
glebiuskv 0:2f0e1e23c242 2494 res = dir_next(dp, 0); /* Next entry */
glebiuskv 0:2f0e1e23c242 2495 } while (res == FR_OK);
glebiuskv 0:2f0e1e23c242 2496
glebiuskv 0:2f0e1e23c242 2497 return res;
glebiuskv 0:2f0e1e23c242 2498 }
glebiuskv 0:2f0e1e23c242 2499
glebiuskv 0:2f0e1e23c242 2500
glebiuskv 0:2f0e1e23c242 2501
glebiuskv 0:2f0e1e23c242 2502
glebiuskv 0:2f0e1e23c242 2503 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 2504 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2505 /* Register an object to the directory */
glebiuskv 0:2f0e1e23c242 2506 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2507
glebiuskv 0:2f0e1e23c242 2508 static
glebiuskv 0:2f0e1e23c242 2509 FRESULT dir_register ( /* FR_OK:succeeded, FR_DENIED:no free entry or too many SFN collision, FR_DISK_ERR:disk error */
glebiuskv 0:2f0e1e23c242 2510 FATFS_DIR* dp /* Target directory with object name to be created */
glebiuskv 0:2f0e1e23c242 2511 )
glebiuskv 0:2f0e1e23c242 2512 {
glebiuskv 0:2f0e1e23c242 2513 FRESULT res;
glebiuskv 0:2f0e1e23c242 2514 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 2515 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2516 UINT n, nlen, nent;
glebiuskv 0:2f0e1e23c242 2517 BYTE sn[12], sum;
glebiuskv 0:2f0e1e23c242 2518
glebiuskv 0:2f0e1e23c242 2519
glebiuskv 0:2f0e1e23c242 2520 if (dp->fn[NSFLAG] & (NS_DOT | NS_NONAME)) return FR_INVALID_NAME; /* Check name validity */
glebiuskv 0:2f0e1e23c242 2521 for (nlen = 0; fs->lfnbuf[nlen]; nlen++) ; /* Get lfn length */
glebiuskv 0:2f0e1e23c242 2522
glebiuskv 0:2f0e1e23c242 2523 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2524 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 2525 nent = (nlen + 14) / 15 + 2; /* Number of entries to allocate (85+C0+C1s) */
glebiuskv 0:2f0e1e23c242 2526 res = dir_alloc(dp, nent); /* Allocate entries */
glebiuskv 0:2f0e1e23c242 2527 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2528 dp->blk_ofs = dp->dptr - SZDIRE * (nent - 1); /* Set the allocated entry block offset */
glebiuskv 0:2f0e1e23c242 2529
glebiuskv 0:2f0e1e23c242 2530 if (dp->obj.stat & 4) { /* Has the directory been stretched? */
glebiuskv 0:2f0e1e23c242 2531 dp->obj.stat &= ~4;
glebiuskv 0:2f0e1e23c242 2532 res = fill_first_frag(&dp->obj); /* Fill the first fragment on the FAT if needed */
glebiuskv 0:2f0e1e23c242 2533 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2534 res = fill_last_frag(&dp->obj, dp->clust, 0xFFFFFFFF); /* Fill the last fragment on the FAT if needed */
glebiuskv 0:2f0e1e23c242 2535 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2536 if (dp->obj.sclust != 0) { /* Is it a sub directory? */
glebiuskv 0:2f0e1e23c242 2537 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 2538
glebiuskv 0:2f0e1e23c242 2539 res = load_obj_xdir(&dj, &dp->obj); /* Load the object status */
glebiuskv 0:2f0e1e23c242 2540 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2541 dp->obj.objsize += (DWORD)fs->csize * SS(fs); /* Increase the directory size by cluster size */
glebiuskv 0:2f0e1e23c242 2542 st_qword(fs->dirbuf + XDIR_FileSize, dp->obj.objsize); /* Update the allocation status */
glebiuskv 0:2f0e1e23c242 2543 st_qword(fs->dirbuf + XDIR_ValidFileSize, dp->obj.objsize);
glebiuskv 0:2f0e1e23c242 2544 fs->dirbuf[XDIR_GenFlags] = dp->obj.stat | 1;
glebiuskv 0:2f0e1e23c242 2545 res = store_xdir(&dj); /* Store the object status */
glebiuskv 0:2f0e1e23c242 2546 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 2547 }
glebiuskv 0:2f0e1e23c242 2548 }
glebiuskv 0:2f0e1e23c242 2549
glebiuskv 0:2f0e1e23c242 2550 create_xdir(fs->dirbuf, fs->lfnbuf); /* Create on-memory directory block to be written later */
glebiuskv 0:2f0e1e23c242 2551 return FR_OK;
glebiuskv 0:2f0e1e23c242 2552 }
glebiuskv 0:2f0e1e23c242 2553 #endif
glebiuskv 0:2f0e1e23c242 2554 /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 2555 mem_cpy(sn, dp->fn, 12);
glebiuskv 0:2f0e1e23c242 2556 if (sn[NSFLAG] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
glebiuskv 0:2f0e1e23c242 2557 dp->fn[NSFLAG] = NS_NOLFN; /* Find only SFN */
glebiuskv 0:2f0e1e23c242 2558 for (n = 1; n < 100; n++) {
glebiuskv 0:2f0e1e23c242 2559 gen_numname(dp->fn, sn, fs->lfnbuf, n); /* Generate a numbered name */
glebiuskv 0:2f0e1e23c242 2560 res = dir_find(dp); /* Check if the name collides with existing SFN */
glebiuskv 0:2f0e1e23c242 2561 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2562 }
glebiuskv 0:2f0e1e23c242 2563 if (n == 100) return FR_DENIED; /* Abort if too many collisions */
glebiuskv 0:2f0e1e23c242 2564 if (res != FR_NO_FILE) return res; /* Abort if the result is other than 'not collided' */
glebiuskv 0:2f0e1e23c242 2565 dp->fn[NSFLAG] = sn[NSFLAG];
glebiuskv 0:2f0e1e23c242 2566 }
glebiuskv 0:2f0e1e23c242 2567
glebiuskv 0:2f0e1e23c242 2568 /* Create an SFN with/without LFNs. */
glebiuskv 0:2f0e1e23c242 2569 nent = (sn[NSFLAG] & NS_LFN) ? (nlen + 12) / 13 + 1 : 1; /* Number of entries to allocate */
glebiuskv 0:2f0e1e23c242 2570 res = dir_alloc(dp, nent); /* Allocate entries */
glebiuskv 0:2f0e1e23c242 2571 if (res == FR_OK && --nent) { /* Set LFN entry if needed */
glebiuskv 0:2f0e1e23c242 2572 res = dir_sdi(dp, dp->dptr - nent * SZDIRE);
glebiuskv 0:2f0e1e23c242 2573 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2574 sum = sum_sfn(dp->fn); /* Checksum value of the SFN tied to the LFN */
glebiuskv 0:2f0e1e23c242 2575 do { /* Store LFN entries in bottom first */
glebiuskv 0:2f0e1e23c242 2576 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2577 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2578 put_lfn(fs->lfnbuf, dp->dir, (BYTE)nent, sum);
glebiuskv 0:2f0e1e23c242 2579 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 2580 res = dir_next(dp, 0); /* Next entry */
glebiuskv 0:2f0e1e23c242 2581 } while (res == FR_OK && --nent);
glebiuskv 0:2f0e1e23c242 2582 }
glebiuskv 0:2f0e1e23c242 2583 }
glebiuskv 0:2f0e1e23c242 2584
glebiuskv 0:2f0e1e23c242 2585 #else /* Non LFN configuration */
glebiuskv 0:2f0e1e23c242 2586 res = dir_alloc(dp, 1); /* Allocate an entry for SFN */
glebiuskv 0:2f0e1e23c242 2587
glebiuskv 0:2f0e1e23c242 2588 #endif
glebiuskv 0:2f0e1e23c242 2589
glebiuskv 0:2f0e1e23c242 2590 /* Set SFN entry */
glebiuskv 0:2f0e1e23c242 2591 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2592 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2593 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2594 mem_set(dp->dir, 0, SZDIRE); /* Clean the entry */
glebiuskv 0:2f0e1e23c242 2595 mem_cpy(dp->dir + DIR_Name, dp->fn, 11); /* Put SFN */
glebiuskv 0:2f0e1e23c242 2596 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2597 dp->dir[DIR_NTres] = dp->fn[NSFLAG] & (NS_BODY | NS_EXT); /* Put NT flag */
glebiuskv 0:2f0e1e23c242 2598 #endif
glebiuskv 0:2f0e1e23c242 2599 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 2600 }
glebiuskv 0:2f0e1e23c242 2601 }
glebiuskv 0:2f0e1e23c242 2602
glebiuskv 0:2f0e1e23c242 2603 return res;
glebiuskv 0:2f0e1e23c242 2604 }
glebiuskv 0:2f0e1e23c242 2605
glebiuskv 0:2f0e1e23c242 2606 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 2607
glebiuskv 0:2f0e1e23c242 2608
glebiuskv 0:2f0e1e23c242 2609
glebiuskv 0:2f0e1e23c242 2610 #if !FF_FS_READONLY && FF_FS_MINIMIZE == 0
glebiuskv 0:2f0e1e23c242 2611 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2612 /* Remove an object from the directory */
glebiuskv 0:2f0e1e23c242 2613 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2614
glebiuskv 0:2f0e1e23c242 2615 static
glebiuskv 0:2f0e1e23c242 2616 FRESULT dir_remove ( /* FR_OK:Succeeded, FR_DISK_ERR:A disk error */
glebiuskv 0:2f0e1e23c242 2617 FATFS_DIR* dp /* Directory object pointing the entry to be removed */
glebiuskv 0:2f0e1e23c242 2618 )
glebiuskv 0:2f0e1e23c242 2619 {
glebiuskv 0:2f0e1e23c242 2620 FRESULT res;
glebiuskv 0:2f0e1e23c242 2621 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 2622 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2623 DWORD last = dp->dptr;
glebiuskv 0:2f0e1e23c242 2624
glebiuskv 0:2f0e1e23c242 2625 res = (dp->blk_ofs == 0xFFFFFFFF) ? FR_OK : dir_sdi(dp, dp->blk_ofs); /* Goto top of the entry block if LFN is exist */
glebiuskv 0:2f0e1e23c242 2626 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2627 do {
glebiuskv 0:2f0e1e23c242 2628 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2629 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 2630 if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 2631 dp->dir[XDIR_Type] &= 0x7F; /* Clear the entry InUse flag. */
glebiuskv 0:2f0e1e23c242 2632 } else { /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 2633 dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'. */
glebiuskv 0:2f0e1e23c242 2634 }
glebiuskv 0:2f0e1e23c242 2635 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 2636 if (dp->dptr >= last) break; /* If reached last entry then all entries of the object has been deleted. */
glebiuskv 0:2f0e1e23c242 2637 res = dir_next(dp, 0); /* Next entry */
glebiuskv 0:2f0e1e23c242 2638 } while (res == FR_OK);
glebiuskv 0:2f0e1e23c242 2639 if (res == FR_NO_FILE) res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 2640 }
glebiuskv 0:2f0e1e23c242 2641 #else /* Non LFN configuration */
glebiuskv 0:2f0e1e23c242 2642
glebiuskv 0:2f0e1e23c242 2643 res = move_window(fs, dp->sect);
glebiuskv 0:2f0e1e23c242 2644 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 2645 dp->dir[DIR_Name] = DDEM; /* Mark the entry 'deleted'.*/
glebiuskv 0:2f0e1e23c242 2646 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 2647 }
glebiuskv 0:2f0e1e23c242 2648 #endif
glebiuskv 0:2f0e1e23c242 2649
glebiuskv 0:2f0e1e23c242 2650 return res;
glebiuskv 0:2f0e1e23c242 2651 }
glebiuskv 0:2f0e1e23c242 2652
glebiuskv 0:2f0e1e23c242 2653 #endif /* !FF_FS_READONLY && FF_FS_MINIMIZE == 0 */
glebiuskv 0:2f0e1e23c242 2654
glebiuskv 0:2f0e1e23c242 2655
glebiuskv 0:2f0e1e23c242 2656
glebiuskv 0:2f0e1e23c242 2657 #if FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2
glebiuskv 0:2f0e1e23c242 2658 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2659 /* Get file information from directory entry */
glebiuskv 0:2f0e1e23c242 2660 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2661
glebiuskv 0:2f0e1e23c242 2662 static
glebiuskv 0:2f0e1e23c242 2663 void get_fileinfo (
glebiuskv 0:2f0e1e23c242 2664 FATFS_DIR* dp, /* Pointer to the directory object */
glebiuskv 0:2f0e1e23c242 2665 FILINFO* fno /* Pointer to the file information to be filled */
glebiuskv 0:2f0e1e23c242 2666 )
glebiuskv 0:2f0e1e23c242 2667 {
glebiuskv 0:2f0e1e23c242 2668 UINT si, di;
glebiuskv 0:2f0e1e23c242 2669 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 2670 WCHAR wc, hs;
glebiuskv 0:2f0e1e23c242 2671 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 2672 #else
glebiuskv 0:2f0e1e23c242 2673 TCHAR c;
glebiuskv 0:2f0e1e23c242 2674 #endif
glebiuskv 0:2f0e1e23c242 2675
glebiuskv 0:2f0e1e23c242 2676
glebiuskv 0:2f0e1e23c242 2677 fno->fname[0] = 0; /* Invaidate file info */
glebiuskv 0:2f0e1e23c242 2678 if (dp->sect == 0) return; /* Exit if read pointer has reached end of directory */
glebiuskv 0:2f0e1e23c242 2679
glebiuskv 0:2f0e1e23c242 2680 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2681 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 2682 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 2683 get_xfileinfo(fs->dirbuf, fno);
glebiuskv 0:2f0e1e23c242 2684 return;
glebiuskv 0:2f0e1e23c242 2685 } else
glebiuskv 0:2f0e1e23c242 2686 #endif
glebiuskv 0:2f0e1e23c242 2687 { /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 2688 if (dp->blk_ofs != 0xFFFFFFFF) { /* Get LFN if available */
glebiuskv 0:2f0e1e23c242 2689 si = di = hs = 0;
glebiuskv 0:2f0e1e23c242 2690 while (fs->lfnbuf[si] != 0) {
glebiuskv 0:2f0e1e23c242 2691 wc = fs->lfnbuf[si++]; /* Get an LFN character (UTF-16) */
glebiuskv 0:2f0e1e23c242 2692 if (hs == 0 && IsSurrogate(wc)) { /* Is it a surrogate? */
glebiuskv 0:2f0e1e23c242 2693 hs = wc; continue; /* Get low surrogate */
glebiuskv 0:2f0e1e23c242 2694 }
glebiuskv 0:2f0e1e23c242 2695 wc = put_utf((DWORD)hs << 16 | wc, &fno->fname[di], FF_LFN_BUF - di); /* Store it in UTF-16 or UTF-8 encoding */
glebiuskv 0:2f0e1e23c242 2696 if (wc == 0) { di = 0; break; } /* Invalid char or buffer overflow? */
glebiuskv 0:2f0e1e23c242 2697 di += wc;
glebiuskv 0:2f0e1e23c242 2698 hs = 0;
glebiuskv 0:2f0e1e23c242 2699 }
glebiuskv 0:2f0e1e23c242 2700 if (hs != 0) di = 0; /* Broken surrogate pair? */
glebiuskv 0:2f0e1e23c242 2701 fno->fname[di] = 0; /* Terminate the LFN (null string means LFN is invalid) */
glebiuskv 0:2f0e1e23c242 2702 }
glebiuskv 0:2f0e1e23c242 2703 }
glebiuskv 0:2f0e1e23c242 2704
glebiuskv 0:2f0e1e23c242 2705 si = di = 0;
glebiuskv 0:2f0e1e23c242 2706 while (si < 11) { /* Get SFN from SFN entry */
glebiuskv 0:2f0e1e23c242 2707 wc = dp->dir[si++]; /* Get a char */
glebiuskv 0:2f0e1e23c242 2708 if (wc == ' ') continue; /* Skip padding spaces */
glebiuskv 0:2f0e1e23c242 2709 if (wc == RDDEM) wc = DDEM; /* Restore replaced DDEM character */
glebiuskv 0:2f0e1e23c242 2710 if (si == 9 && di < FF_SFN_BUF) fno->altname[di++] = '.'; /* Insert a . if extension is exist */
glebiuskv 0:2f0e1e23c242 2711 #if FF_LFN_UNICODE >= 1 /* Unicode output */
glebiuskv 0:2f0e1e23c242 2712 if (dbc_1st((BYTE)wc) && si != 8 && si != 11 && dbc_2nd(dp->dir[si])) { /* Make a DBC if needed */
glebiuskv 0:2f0e1e23c242 2713 wc = wc << 8 | dp->dir[si++];
glebiuskv 0:2f0e1e23c242 2714 }
glebiuskv 0:2f0e1e23c242 2715 wc = ff_oem2uni(wc, CODEPAGE); /* ANSI/OEM -> Unicode */
glebiuskv 0:2f0e1e23c242 2716 if (wc == 0) { di = 0; break; } /* Wrong char in the current code page? */
glebiuskv 0:2f0e1e23c242 2717 wc = put_utf(wc, &fno->altname[di], FF_SFN_BUF - di); /* Store it in UTF-16 or UTF-8 */
glebiuskv 0:2f0e1e23c242 2718 if (wc == 0) { di = 0; break; } /* Buffer overflow? */
glebiuskv 0:2f0e1e23c242 2719 di += wc;
glebiuskv 0:2f0e1e23c242 2720 #else /* ANSI/OEM output */
glebiuskv 0:2f0e1e23c242 2721 fno->altname[di++] = (TCHAR)wc; /* Store it without any conversion */
glebiuskv 0:2f0e1e23c242 2722 #endif
glebiuskv 0:2f0e1e23c242 2723 }
glebiuskv 0:2f0e1e23c242 2724 fno->altname[di] = 0; /* Terminate the SFN (null string means SFN is invalid) */
glebiuskv 0:2f0e1e23c242 2725
glebiuskv 0:2f0e1e23c242 2726 if (fno->fname[0] == 0) { /* If LFN is invalid, altname[] needs to be copied to fname[] */
glebiuskv 0:2f0e1e23c242 2727 if (di == 0) { /* If LFN and SFN both are invalid, this object is inaccesible */
glebiuskv 0:2f0e1e23c242 2728 fno->fname[di++] = '?';
glebiuskv 0:2f0e1e23c242 2729 } else {
glebiuskv 0:2f0e1e23c242 2730 for (si = di = 0; fno->altname[si]; si++, di++) { /* Copy altname[] to fname[] with case information */
glebiuskv 0:2f0e1e23c242 2731 wc = (WCHAR)fno->altname[si];
glebiuskv 0:2f0e1e23c242 2732 if (IsUpper(wc) && (dp->dir[DIR_NTres] & ((si >= 9) ? NS_EXT : NS_BODY))) wc += 0x20;
glebiuskv 0:2f0e1e23c242 2733 fno->fname[di] = (TCHAR)wc;
glebiuskv 0:2f0e1e23c242 2734 }
glebiuskv 0:2f0e1e23c242 2735 }
glebiuskv 0:2f0e1e23c242 2736 fno->fname[di] = 0; /* Terminate the LFN */
glebiuskv 0:2f0e1e23c242 2737 if (!dp->dir[DIR_NTres]) fno->altname[0] = 0; /* Altname is not needed if neither LFN nor case info is exist. */
glebiuskv 0:2f0e1e23c242 2738 }
glebiuskv 0:2f0e1e23c242 2739
glebiuskv 0:2f0e1e23c242 2740 #else /* Non-LFN configuration */
glebiuskv 0:2f0e1e23c242 2741 si = di = 0;
glebiuskv 0:2f0e1e23c242 2742 while (si < 11) { /* Copy name body and extension */
glebiuskv 0:2f0e1e23c242 2743 c = (TCHAR)dp->dir[si++];
glebiuskv 0:2f0e1e23c242 2744 if (c == ' ') continue; /* Skip padding spaces */
glebiuskv 0:2f0e1e23c242 2745 if (c == RDDEM) c = DDEM; /* Restore replaced DDEM character */
glebiuskv 0:2f0e1e23c242 2746 if (si == 9) fno->fname[di++] = '.';/* Insert a . if extension is exist */
glebiuskv 0:2f0e1e23c242 2747 fno->fname[di++] = c;
glebiuskv 0:2f0e1e23c242 2748 }
glebiuskv 0:2f0e1e23c242 2749 fno->fname[di] = 0;
glebiuskv 0:2f0e1e23c242 2750 #endif
glebiuskv 0:2f0e1e23c242 2751
glebiuskv 0:2f0e1e23c242 2752 fno->fattrib = dp->dir[DIR_Attr]; /* Attribute */
glebiuskv 0:2f0e1e23c242 2753 fno->fsize = ld_dword(dp->dir + DIR_FileSize); /* Size */
glebiuskv 0:2f0e1e23c242 2754 fno->ftime = ld_word(dp->dir + DIR_ModTime + 0); /* Time */
glebiuskv 0:2f0e1e23c242 2755 fno->fdate = ld_word(dp->dir + DIR_ModTime + 2); /* Date */
glebiuskv 0:2f0e1e23c242 2756 }
glebiuskv 0:2f0e1e23c242 2757
glebiuskv 0:2f0e1e23c242 2758 #endif /* FF_FS_MINIMIZE <= 1 || FF_FS_RPATH >= 2 */
glebiuskv 0:2f0e1e23c242 2759
glebiuskv 0:2f0e1e23c242 2760
glebiuskv 0:2f0e1e23c242 2761
glebiuskv 0:2f0e1e23c242 2762 #if FF_USE_FIND && FF_FS_MINIMIZE <= 1
glebiuskv 0:2f0e1e23c242 2763 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2764 /* Pattern matching */
glebiuskv 0:2f0e1e23c242 2765 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2766
glebiuskv 0:2f0e1e23c242 2767 static
glebiuskv 0:2f0e1e23c242 2768 DWORD get_achar ( /* Get a character and advances ptr */
glebiuskv 0:2f0e1e23c242 2769 const TCHAR** ptr /* Pointer to pointer to the ANSI/OEM or Unicode string */
glebiuskv 0:2f0e1e23c242 2770 )
glebiuskv 0:2f0e1e23c242 2771 {
glebiuskv 0:2f0e1e23c242 2772 DWORD chr;
glebiuskv 0:2f0e1e23c242 2773
glebiuskv 0:2f0e1e23c242 2774
glebiuskv 0:2f0e1e23c242 2775 #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode input */
glebiuskv 0:2f0e1e23c242 2776 chr = tchar2uni(ptr);
glebiuskv 0:2f0e1e23c242 2777 if (chr == 0xFFFFFFFF) chr = 0; /* Wrong UTF encoding is recognized as end of the string */
glebiuskv 0:2f0e1e23c242 2778 chr = ff_wtoupper(chr);
glebiuskv 0:2f0e1e23c242 2779
glebiuskv 0:2f0e1e23c242 2780 #else /* ANSI/OEM input */
glebiuskv 0:2f0e1e23c242 2781 chr = (BYTE)*(*ptr)++; /* Get a byte */
glebiuskv 0:2f0e1e23c242 2782 if (IsLower(chr)) chr -= 0x20; /* To upper ASCII char */
glebiuskv 0:2f0e1e23c242 2783 #if FF_CODE_PAGE == 0
glebiuskv 0:2f0e1e23c242 2784 if (ExCvt && chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
glebiuskv 0:2f0e1e23c242 2785 #elif FF_CODE_PAGE < 900
glebiuskv 0:2f0e1e23c242 2786 if (chr >= 0x80) chr = ExCvt[chr - 0x80]; /* To upper SBCS extended char */
glebiuskv 0:2f0e1e23c242 2787 #endif
glebiuskv 0:2f0e1e23c242 2788 #if FF_CODE_PAGE == 0 || FF_CODE_PAGE >= 900
glebiuskv 0:2f0e1e23c242 2789 if (dbc_1st((BYTE)chr)) { /* Get DBC 2nd byte if needed */
glebiuskv 0:2f0e1e23c242 2790 chr = dbc_2nd((BYTE)**ptr) ? chr << 8 | (BYTE)*(*ptr)++ : 0;
glebiuskv 0:2f0e1e23c242 2791 }
glebiuskv 0:2f0e1e23c242 2792 #endif
glebiuskv 0:2f0e1e23c242 2793
glebiuskv 0:2f0e1e23c242 2794 #endif
glebiuskv 0:2f0e1e23c242 2795 return chr;
glebiuskv 0:2f0e1e23c242 2796 }
glebiuskv 0:2f0e1e23c242 2797
glebiuskv 0:2f0e1e23c242 2798
glebiuskv 0:2f0e1e23c242 2799 static
glebiuskv 0:2f0e1e23c242 2800 int pattern_matching ( /* 0:not matched, 1:matched */
glebiuskv 0:2f0e1e23c242 2801 const TCHAR* pat, /* Matching pattern */
glebiuskv 0:2f0e1e23c242 2802 const TCHAR* nam, /* String to be tested */
glebiuskv 0:2f0e1e23c242 2803 int skip, /* Number of pre-skip chars (number of ?s) */
glebiuskv 0:2f0e1e23c242 2804 int inf /* Infinite search (* specified) */
glebiuskv 0:2f0e1e23c242 2805 )
glebiuskv 0:2f0e1e23c242 2806 {
glebiuskv 0:2f0e1e23c242 2807 const TCHAR *pp, *np;
glebiuskv 0:2f0e1e23c242 2808 DWORD pc, nc;
glebiuskv 0:2f0e1e23c242 2809 int nm, nx;
glebiuskv 0:2f0e1e23c242 2810
glebiuskv 0:2f0e1e23c242 2811
glebiuskv 0:2f0e1e23c242 2812 while (skip--) { /* Pre-skip name chars */
glebiuskv 0:2f0e1e23c242 2813 if (!get_achar(&nam)) return 0; /* Branch mismatched if less name chars */
glebiuskv 0:2f0e1e23c242 2814 }
glebiuskv 0:2f0e1e23c242 2815 if (*pat == 0 && inf) return 1; /* (short circuit) */
glebiuskv 0:2f0e1e23c242 2816
glebiuskv 0:2f0e1e23c242 2817 do {
glebiuskv 0:2f0e1e23c242 2818 pp = pat; np = nam; /* Top of pattern and name to match */
glebiuskv 0:2f0e1e23c242 2819 for (;;) {
glebiuskv 0:2f0e1e23c242 2820 if (*pp == '?' || *pp == '*') { /* Wildcard? */
glebiuskv 0:2f0e1e23c242 2821 nm = nx = 0;
glebiuskv 0:2f0e1e23c242 2822 do { /* Analyze the wildcard block */
glebiuskv 0:2f0e1e23c242 2823 if (*pp++ == '?') nm++; else nx = 1;
glebiuskv 0:2f0e1e23c242 2824 } while (*pp == '?' || *pp == '*');
glebiuskv 0:2f0e1e23c242 2825 if (pattern_matching(pp, np, nm, nx)) return 1; /* Test new branch (recurs upto number of wildcard blocks in the pattern) */
glebiuskv 0:2f0e1e23c242 2826 nc = *np; break; /* Branch mismatched */
glebiuskv 0:2f0e1e23c242 2827 }
glebiuskv 0:2f0e1e23c242 2828 pc = get_achar(&pp); /* Get a pattern char */
glebiuskv 0:2f0e1e23c242 2829 nc = get_achar(&np); /* Get a name char */
glebiuskv 0:2f0e1e23c242 2830 if (pc != nc) break; /* Branch mismatched? */
glebiuskv 0:2f0e1e23c242 2831 if (pc == 0) return 1; /* Branch matched? (matched at end of both strings) */
glebiuskv 0:2f0e1e23c242 2832 }
glebiuskv 0:2f0e1e23c242 2833 get_achar(&nam); /* nam++ */
glebiuskv 0:2f0e1e23c242 2834 } while (inf && nc); /* Retry until end of name if infinite search is specified */
glebiuskv 0:2f0e1e23c242 2835
glebiuskv 0:2f0e1e23c242 2836 return 0;
glebiuskv 0:2f0e1e23c242 2837 }
glebiuskv 0:2f0e1e23c242 2838
glebiuskv 0:2f0e1e23c242 2839 #endif /* FF_USE_FIND && FF_FS_MINIMIZE <= 1 */
glebiuskv 0:2f0e1e23c242 2840
glebiuskv 0:2f0e1e23c242 2841
glebiuskv 0:2f0e1e23c242 2842
glebiuskv 0:2f0e1e23c242 2843 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2844 /* Pick a top segment and create the object name in directory form */
glebiuskv 0:2f0e1e23c242 2845 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 2846
glebiuskv 0:2f0e1e23c242 2847 static
glebiuskv 0:2f0e1e23c242 2848 FRESULT create_name ( /* FR_OK: successful, FR_INVALID_NAME: could not create */
glebiuskv 0:2f0e1e23c242 2849 FATFS_DIR* dp, /* Pointer to the directory object */
glebiuskv 0:2f0e1e23c242 2850 const TCHAR** path /* Pointer to pointer to the segment in the path string */
glebiuskv 0:2f0e1e23c242 2851 )
glebiuskv 0:2f0e1e23c242 2852 {
glebiuskv 0:2f0e1e23c242 2853 #if FF_USE_LFN /* LFN configuration */
glebiuskv 0:2f0e1e23c242 2854 BYTE b, cf;
glebiuskv 0:2f0e1e23c242 2855 WCHAR wc, *lfn;
glebiuskv 0:2f0e1e23c242 2856 DWORD uc;
glebiuskv 0:2f0e1e23c242 2857 UINT i, ni, si, di;
glebiuskv 0:2f0e1e23c242 2858 const TCHAR *p;
glebiuskv 0:2f0e1e23c242 2859
glebiuskv 0:2f0e1e23c242 2860
glebiuskv 0:2f0e1e23c242 2861 /* Create LFN into LFN working buffer */
glebiuskv 0:2f0e1e23c242 2862 p = *path; lfn = dp->obj.fs->lfnbuf; di = 0;
glebiuskv 0:2f0e1e23c242 2863 for (;;) {
glebiuskv 0:2f0e1e23c242 2864 uc = tchar2uni(&p); /* Get a character */
glebiuskv 0:2f0e1e23c242 2865 if (uc == 0xFFFFFFFF) return FR_INVALID_NAME; /* Invalid code or UTF decode error */
glebiuskv 0:2f0e1e23c242 2866 if (uc >= 0x10000) lfn[di++] = (WCHAR)(uc >> 16); /* Store high surrogate if needed */
glebiuskv 0:2f0e1e23c242 2867 wc = (WCHAR)uc;
glebiuskv 0:2f0e1e23c242 2868 if (wc < ' ' || wc == '/' || wc == '\\') break; /* Break if end of the path or a separator is found */
glebiuskv 0:2f0e1e23c242 2869 if (wc < 0x80 && chk_chr("\"*:<>\?|\x7F", wc)) return FR_INVALID_NAME; /* Reject illegal characters for LFN */
glebiuskv 0:2f0e1e23c242 2870 if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */
glebiuskv 0:2f0e1e23c242 2871 lfn[di++] = wc; /* Store the Unicode character */
glebiuskv 0:2f0e1e23c242 2872 }
glebiuskv 0:2f0e1e23c242 2873 while (*p == '/' || *p == '\\') p++; /* Skip duplicated separators if exist */
glebiuskv 0:2f0e1e23c242 2874 *path = p; /* Return pointer to the next segment */
glebiuskv 0:2f0e1e23c242 2875 cf = (wc < ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */
glebiuskv 0:2f0e1e23c242 2876
glebiuskv 0:2f0e1e23c242 2877 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 2878 if ((di == 1 && lfn[di - 1] == '.') ||
glebiuskv 0:2f0e1e23c242 2879 (di == 2 && lfn[di - 1] == '.' && lfn[di - 2] == '.')) { /* Is this segment a dot name? */
glebiuskv 0:2f0e1e23c242 2880 lfn[di] = 0;
glebiuskv 0:2f0e1e23c242 2881 for (i = 0; i < 11; i++) { /* Create dot name for SFN entry */
glebiuskv 0:2f0e1e23c242 2882 dp->fn[i] = (i < di) ? '.' : ' ';
glebiuskv 0:2f0e1e23c242 2883 }
glebiuskv 0:2f0e1e23c242 2884 dp->fn[i] = cf | NS_DOT; /* This is a dot entry */
glebiuskv 0:2f0e1e23c242 2885 return FR_OK;
glebiuskv 0:2f0e1e23c242 2886 }
glebiuskv 0:2f0e1e23c242 2887 #endif
glebiuskv 0:2f0e1e23c242 2888 while (di) { /* Snip off trailing spaces and dots if exist */
glebiuskv 0:2f0e1e23c242 2889 wc = lfn[di - 1];
glebiuskv 0:2f0e1e23c242 2890 if (wc != ' ' && wc != '.') break;
glebiuskv 0:2f0e1e23c242 2891 di--;
glebiuskv 0:2f0e1e23c242 2892 }
glebiuskv 0:2f0e1e23c242 2893 lfn[di] = 0; /* LFN is created into the working buffer */
glebiuskv 0:2f0e1e23c242 2894 if (di == 0) return FR_INVALID_NAME; /* Reject null name */
glebiuskv 0:2f0e1e23c242 2895
glebiuskv 0:2f0e1e23c242 2896 /* Create SFN in directory form */
glebiuskv 0:2f0e1e23c242 2897 for (si = 0; lfn[si] == ' '; si++) ; /* Remove leading spaces */
glebiuskv 0:2f0e1e23c242 2898 if (si > 0 || lfn[si] == '.') cf |= NS_LOSS | NS_LFN; /* Is there any leading space or dot? */
glebiuskv 0:2f0e1e23c242 2899 while (di > 0 && lfn[di - 1] != '.') di--; /* Find last dot (di<=si: no extension) */
glebiuskv 0:2f0e1e23c242 2900
glebiuskv 0:2f0e1e23c242 2901 mem_set(dp->fn, ' ', 11);
glebiuskv 0:2f0e1e23c242 2902 i = b = 0; ni = 8;
glebiuskv 0:2f0e1e23c242 2903 for (;;) {
glebiuskv 0:2f0e1e23c242 2904 wc = lfn[si++]; /* Get an LFN character */
glebiuskv 0:2f0e1e23c242 2905 if (wc == 0) break; /* Break on end of the LFN */
glebiuskv 0:2f0e1e23c242 2906 if (wc == ' ' || (wc == '.' && si != di)) { /* Remove embedded spaces and dots */
glebiuskv 0:2f0e1e23c242 2907 cf |= NS_LOSS | NS_LFN;
glebiuskv 0:2f0e1e23c242 2908 continue;
glebiuskv 0:2f0e1e23c242 2909 }
glebiuskv 0:2f0e1e23c242 2910
glebiuskv 0:2f0e1e23c242 2911 if (i >= ni || si == di) { /* End of field? */
glebiuskv 0:2f0e1e23c242 2912 if (ni == 11) { /* Name extension overflow? */
glebiuskv 0:2f0e1e23c242 2913 cf |= NS_LOSS | NS_LFN;
glebiuskv 0:2f0e1e23c242 2914 break;
glebiuskv 0:2f0e1e23c242 2915 }
glebiuskv 0:2f0e1e23c242 2916 if (si != di) cf |= NS_LOSS | NS_LFN; /* Name body overflow? */
glebiuskv 0:2f0e1e23c242 2917 if (si > di) break; /* No name extension? */
glebiuskv 0:2f0e1e23c242 2918 si = di; i = 8; ni = 11; b <<= 2; /* Enter name extension */
glebiuskv 0:2f0e1e23c242 2919 continue;
glebiuskv 0:2f0e1e23c242 2920 }
glebiuskv 0:2f0e1e23c242 2921
glebiuskv 0:2f0e1e23c242 2922 if (wc >= 0x80) { /* Is this a non-ASCII character? */
glebiuskv 0:2f0e1e23c242 2923 cf |= NS_LFN; /* LFN entry needs to be created */
glebiuskv 0:2f0e1e23c242 2924 #if FF_CODE_PAGE == 0
glebiuskv 0:2f0e1e23c242 2925 if (ExCvt) { /* At SBCS */
glebiuskv 0:2f0e1e23c242 2926 wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */
glebiuskv 0:2f0e1e23c242 2927 if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */
glebiuskv 0:2f0e1e23c242 2928 } else { /* At DBCS */
glebiuskv 0:2f0e1e23c242 2929 wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */
glebiuskv 0:2f0e1e23c242 2930 }
glebiuskv 0:2f0e1e23c242 2931 #elif FF_CODE_PAGE < 900 /* SBCS cfg */
glebiuskv 0:2f0e1e23c242 2932 wc = ff_uni2oem(wc, CODEPAGE); /* Unicode ==> ANSI/OEM code */
glebiuskv 0:2f0e1e23c242 2933 if (wc & 0x80) wc = ExCvt[wc & 0x7F]; /* Convert extended character to upper (SBCS) */
glebiuskv 0:2f0e1e23c242 2934 #else /* DBCS cfg */
glebiuskv 0:2f0e1e23c242 2935 wc = ff_uni2oem(ff_wtoupper(wc), CODEPAGE); /* Unicode ==> Upper convert ==> ANSI/OEM code */
glebiuskv 0:2f0e1e23c242 2936 #endif
glebiuskv 0:2f0e1e23c242 2937 }
glebiuskv 0:2f0e1e23c242 2938
glebiuskv 0:2f0e1e23c242 2939 if (wc >= 0x100) { /* Is this a DBC? */
glebiuskv 0:2f0e1e23c242 2940 if (i >= ni - 1) { /* Field overflow? */
glebiuskv 0:2f0e1e23c242 2941 cf |= NS_LOSS | NS_LFN;
glebiuskv 0:2f0e1e23c242 2942 i = ni; continue; /* Next field */
glebiuskv 0:2f0e1e23c242 2943 }
glebiuskv 0:2f0e1e23c242 2944 dp->fn[i++] = (BYTE)(wc >> 8); /* Put 1st byte */
glebiuskv 0:2f0e1e23c242 2945 } else { /* SBC */
glebiuskv 0:2f0e1e23c242 2946 if (wc == 0 || chk_chr("+,;=[]", wc)) { /* Replace illegal characters for SFN if needed */
glebiuskv 0:2f0e1e23c242 2947 wc = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
glebiuskv 0:2f0e1e23c242 2948 } else {
glebiuskv 0:2f0e1e23c242 2949 if (IsUpper(wc)) { /* ASCII upper case? */
glebiuskv 0:2f0e1e23c242 2950 b |= 2;
glebiuskv 0:2f0e1e23c242 2951 }
glebiuskv 0:2f0e1e23c242 2952 if (IsLower(wc)) { /* ASCII lower case? */
glebiuskv 0:2f0e1e23c242 2953 b |= 1; wc -= 0x20;
glebiuskv 0:2f0e1e23c242 2954 }
glebiuskv 0:2f0e1e23c242 2955 }
glebiuskv 0:2f0e1e23c242 2956 }
glebiuskv 0:2f0e1e23c242 2957 dp->fn[i++] = (BYTE)wc;
glebiuskv 0:2f0e1e23c242 2958 }
glebiuskv 0:2f0e1e23c242 2959
glebiuskv 0:2f0e1e23c242 2960 if (dp->fn[0] == DDEM) dp->fn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
glebiuskv 0:2f0e1e23c242 2961
glebiuskv 0:2f0e1e23c242 2962 if (ni == 8) b <<= 2; /* Shift capital flags if no extension */
glebiuskv 0:2f0e1e23c242 2963 if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) cf |= NS_LFN; /* LFN entry needs to be created if composite capitals */
glebiuskv 0:2f0e1e23c242 2964 if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
glebiuskv 0:2f0e1e23c242 2965 if (b & 0x01) cf |= NS_EXT; /* NT flag (Extension has small capital letters only) */
glebiuskv 0:2f0e1e23c242 2966 if (b & 0x04) cf |= NS_BODY; /* NT flag (Body has small capital letters only) */
glebiuskv 0:2f0e1e23c242 2967 }
glebiuskv 0:2f0e1e23c242 2968
glebiuskv 0:2f0e1e23c242 2969 dp->fn[NSFLAG] = cf; /* SFN is created into dp->fn[] */
glebiuskv 0:2f0e1e23c242 2970
glebiuskv 0:2f0e1e23c242 2971 return FR_OK;
glebiuskv 0:2f0e1e23c242 2972
glebiuskv 0:2f0e1e23c242 2973
glebiuskv 0:2f0e1e23c242 2974 #else /* FF_USE_LFN : Non-LFN configuration */
glebiuskv 0:2f0e1e23c242 2975 BYTE c, d, *sfn;
glebiuskv 0:2f0e1e23c242 2976 UINT ni, si, i;
glebiuskv 0:2f0e1e23c242 2977 const char *p;
glebiuskv 0:2f0e1e23c242 2978
glebiuskv 0:2f0e1e23c242 2979 /* Create file name in directory form */
glebiuskv 0:2f0e1e23c242 2980 p = *path; sfn = dp->fn;
glebiuskv 0:2f0e1e23c242 2981 mem_set(sfn, ' ', 11);
glebiuskv 0:2f0e1e23c242 2982 si = i = 0; ni = 8;
glebiuskv 0:2f0e1e23c242 2983 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 2984 if (p[si] == '.') { /* Is this a dot entry? */
glebiuskv 0:2f0e1e23c242 2985 for (;;) {
glebiuskv 0:2f0e1e23c242 2986 c = (BYTE)p[si++];
glebiuskv 0:2f0e1e23c242 2987 if (c != '.' || si >= 3) break;
glebiuskv 0:2f0e1e23c242 2988 sfn[i++] = c;
glebiuskv 0:2f0e1e23c242 2989 }
glebiuskv 0:2f0e1e23c242 2990 if (c != '/' && c != '\\' && c > ' ') return FR_INVALID_NAME;
glebiuskv 0:2f0e1e23c242 2991 *path = p + si; /* Return pointer to the next segment */
glebiuskv 0:2f0e1e23c242 2992 sfn[NSFLAG] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of the path */
glebiuskv 0:2f0e1e23c242 2993 return FR_OK;
glebiuskv 0:2f0e1e23c242 2994 }
glebiuskv 0:2f0e1e23c242 2995 #endif
glebiuskv 0:2f0e1e23c242 2996 for (;;) {
glebiuskv 0:2f0e1e23c242 2997 c = (BYTE)p[si++]; /* Get a byte */
glebiuskv 0:2f0e1e23c242 2998 if (c <= ' ') break; /* Break if end of the path name */
glebiuskv 0:2f0e1e23c242 2999 if (c == '/' || c == '\\') { /* Break if a separator is found */
glebiuskv 0:2f0e1e23c242 3000 while (p[si] == '/' || p[si] == '\\') si++; /* Skip duplicated separator if exist */
glebiuskv 0:2f0e1e23c242 3001 break;
glebiuskv 0:2f0e1e23c242 3002 }
glebiuskv 0:2f0e1e23c242 3003 if (c == '.' || i >= ni) { /* End of body or field overflow? */
glebiuskv 0:2f0e1e23c242 3004 if (ni == 11 || c != '.') return FR_INVALID_NAME; /* Field overflow or invalid dot? */
glebiuskv 0:2f0e1e23c242 3005 i = 8; ni = 11; /* Enter file extension field */
glebiuskv 0:2f0e1e23c242 3006 continue;
glebiuskv 0:2f0e1e23c242 3007 }
glebiuskv 0:2f0e1e23c242 3008 #if FF_CODE_PAGE == 0
glebiuskv 0:2f0e1e23c242 3009 if (ExCvt && c >= 0x80) { /* Is SBC extended character? */
glebiuskv 0:2f0e1e23c242 3010 c = ExCvt[c & 0x7F]; /* To upper SBC extended character */
glebiuskv 0:2f0e1e23c242 3011 }
glebiuskv 0:2f0e1e23c242 3012 #elif FF_CODE_PAGE < 900
glebiuskv 0:2f0e1e23c242 3013 if (c >= 0x80) { /* Is SBC extended character? */
glebiuskv 0:2f0e1e23c242 3014 c = ExCvt[c & 0x7F]; /* To upper SBC extended character */
glebiuskv 0:2f0e1e23c242 3015 }
glebiuskv 0:2f0e1e23c242 3016 #endif
glebiuskv 0:2f0e1e23c242 3017 if (dbc_1st(c)) { /* Check if it is a DBC 1st byte */
glebiuskv 0:2f0e1e23c242 3018 d = (BYTE)p[si++]; /* Get 2nd byte */
glebiuskv 0:2f0e1e23c242 3019 if (!dbc_2nd(d) || i >= ni - 1) return FR_INVALID_NAME; /* Reject invalid DBC */
glebiuskv 0:2f0e1e23c242 3020 sfn[i++] = c;
glebiuskv 0:2f0e1e23c242 3021 sfn[i++] = d;
glebiuskv 0:2f0e1e23c242 3022 } else { /* SBC */
glebiuskv 0:2f0e1e23c242 3023 if (chk_chr("\"*+,:;<=>\?[]|\x7F", c)) return FR_INVALID_NAME; /* Reject illegal chrs for SFN */
glebiuskv 0:2f0e1e23c242 3024 if (IsLower(c)) c -= 0x20; /* To upper */
glebiuskv 0:2f0e1e23c242 3025 sfn[i++] = c;
glebiuskv 0:2f0e1e23c242 3026 }
glebiuskv 0:2f0e1e23c242 3027 }
glebiuskv 0:2f0e1e23c242 3028 *path = p + si; /* Return pointer to the next segment */
glebiuskv 0:2f0e1e23c242 3029 if (i == 0) return FR_INVALID_NAME; /* Reject nul string */
glebiuskv 0:2f0e1e23c242 3030
glebiuskv 0:2f0e1e23c242 3031 if (sfn[0] == DDEM) sfn[0] = RDDEM; /* If the first character collides with DDEM, replace it with RDDEM */
glebiuskv 0:2f0e1e23c242 3032 sfn[NSFLAG] = (c <= ' ') ? NS_LAST : 0; /* Set last segment flag if end of the path */
glebiuskv 0:2f0e1e23c242 3033
glebiuskv 0:2f0e1e23c242 3034 return FR_OK;
glebiuskv 0:2f0e1e23c242 3035 #endif /* FF_USE_LFN */
glebiuskv 0:2f0e1e23c242 3036 }
glebiuskv 0:2f0e1e23c242 3037
glebiuskv 0:2f0e1e23c242 3038
glebiuskv 0:2f0e1e23c242 3039
glebiuskv 0:2f0e1e23c242 3040
glebiuskv 0:2f0e1e23c242 3041 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3042 /* Follow a file path */
glebiuskv 0:2f0e1e23c242 3043 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3044
glebiuskv 0:2f0e1e23c242 3045 static
glebiuskv 0:2f0e1e23c242 3046 FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
glebiuskv 0:2f0e1e23c242 3047 FATFS_DIR* dp, /* Directory object to return last directory and found object */
glebiuskv 0:2f0e1e23c242 3048 const TCHAR* path /* Full-path string to find a file or directory */
glebiuskv 0:2f0e1e23c242 3049 )
glebiuskv 0:2f0e1e23c242 3050 {
glebiuskv 0:2f0e1e23c242 3051 FRESULT res;
glebiuskv 0:2f0e1e23c242 3052 BYTE ns;
glebiuskv 0:2f0e1e23c242 3053 FATFS *fs = dp->obj.fs;
glebiuskv 0:2f0e1e23c242 3054
glebiuskv 0:2f0e1e23c242 3055
glebiuskv 0:2f0e1e23c242 3056 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 3057 if (*path != '/' && *path != '\\') { /* Without heading separator */
glebiuskv 0:2f0e1e23c242 3058 dp->obj.sclust = fs->cdir; /* Start from current directory */
glebiuskv 0:2f0e1e23c242 3059 } else
glebiuskv 0:2f0e1e23c242 3060 #endif
glebiuskv 0:2f0e1e23c242 3061 { /* With heading separator */
glebiuskv 0:2f0e1e23c242 3062 while (*path == '/' || *path == '\\') path++; /* Strip heading separator */
glebiuskv 0:2f0e1e23c242 3063 dp->obj.sclust = 0; /* Start from root directory */
glebiuskv 0:2f0e1e23c242 3064 }
glebiuskv 0:2f0e1e23c242 3065 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3066 dp->obj.n_frag = 0; /* Invalidate last fragment counter of the object */
glebiuskv 0:2f0e1e23c242 3067 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 3068 if (fs->fs_type == FS_EXFAT && dp->obj.sclust) { /* exFAT: Retrieve the sub-directory's status */
glebiuskv 0:2f0e1e23c242 3069 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 3070
glebiuskv 0:2f0e1e23c242 3071 dp->obj.c_scl = fs->cdc_scl;
glebiuskv 0:2f0e1e23c242 3072 dp->obj.c_size = fs->cdc_size;
glebiuskv 0:2f0e1e23c242 3073 dp->obj.c_ofs = fs->cdc_ofs;
glebiuskv 0:2f0e1e23c242 3074 res = load_obj_xdir(&dj, &dp->obj);
glebiuskv 0:2f0e1e23c242 3075 if (res != FR_OK) return res;
glebiuskv 0:2f0e1e23c242 3076 dp->obj.objsize = ld_dword(fs->dirbuf + XDIR_FileSize);
glebiuskv 0:2f0e1e23c242 3077 dp->obj.stat = fs->dirbuf[XDIR_GenFlags] & 2;
glebiuskv 0:2f0e1e23c242 3078 }
glebiuskv 0:2f0e1e23c242 3079 #endif
glebiuskv 0:2f0e1e23c242 3080 #endif
glebiuskv 0:2f0e1e23c242 3081
glebiuskv 0:2f0e1e23c242 3082 if ((UINT)*path < ' ') { /* Null path name is the origin directory itself */
glebiuskv 0:2f0e1e23c242 3083 dp->fn[NSFLAG] = NS_NONAME;
glebiuskv 0:2f0e1e23c242 3084 res = dir_sdi(dp, 0);
glebiuskv 0:2f0e1e23c242 3085
glebiuskv 0:2f0e1e23c242 3086 } else { /* Follow path */
glebiuskv 0:2f0e1e23c242 3087 for (;;) {
glebiuskv 0:2f0e1e23c242 3088 res = create_name(dp, &path); /* Get a segment name of the path */
glebiuskv 0:2f0e1e23c242 3089 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 3090 res = dir_find(dp); /* Find an object with the segment name */
glebiuskv 0:2f0e1e23c242 3091 ns = dp->fn[NSFLAG];
glebiuskv 0:2f0e1e23c242 3092 if (res != FR_OK) { /* Failed to find the object */
glebiuskv 0:2f0e1e23c242 3093 if (res == FR_NO_FILE) { /* Object is not found */
glebiuskv 0:2f0e1e23c242 3094 if (FF_FS_RPATH && (ns & NS_DOT)) { /* If dot entry is not exist, stay there */
glebiuskv 0:2f0e1e23c242 3095 if (!(ns & NS_LAST)) continue; /* Continue to follow if not last segment */
glebiuskv 0:2f0e1e23c242 3096 dp->fn[NSFLAG] = NS_NONAME;
glebiuskv 0:2f0e1e23c242 3097 res = FR_OK;
glebiuskv 0:2f0e1e23c242 3098 } else { /* Could not find the object */
glebiuskv 0:2f0e1e23c242 3099 if (!(ns & NS_LAST)) res = FR_NO_PATH; /* Adjust error code if not last segment */
glebiuskv 0:2f0e1e23c242 3100 }
glebiuskv 0:2f0e1e23c242 3101 }
glebiuskv 0:2f0e1e23c242 3102 break;
glebiuskv 0:2f0e1e23c242 3103 }
glebiuskv 0:2f0e1e23c242 3104 if (ns & NS_LAST) break; /* Last segment matched. Function completed. */
glebiuskv 0:2f0e1e23c242 3105 /* Get into the sub-directory */
glebiuskv 0:2f0e1e23c242 3106 if (!(dp->obj.attr & AM_DIR)) { /* It is not a sub-directory and cannot follow */
glebiuskv 0:2f0e1e23c242 3107 res = FR_NO_PATH; break;
glebiuskv 0:2f0e1e23c242 3108 }
glebiuskv 0:2f0e1e23c242 3109 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3110 if (fs->fs_type == FS_EXFAT) { /* Save containing directory information for next dir */
glebiuskv 0:2f0e1e23c242 3111 dp->obj.c_scl = dp->obj.sclust;
glebiuskv 0:2f0e1e23c242 3112 dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;
glebiuskv 0:2f0e1e23c242 3113 dp->obj.c_ofs = dp->blk_ofs;
glebiuskv 0:2f0e1e23c242 3114 init_alloc_info(fs, &dp->obj); /* Open next directory */
glebiuskv 0:2f0e1e23c242 3115 } else
glebiuskv 0:2f0e1e23c242 3116 #endif
glebiuskv 0:2f0e1e23c242 3117 {
glebiuskv 0:2f0e1e23c242 3118 dp->obj.sclust = ld_clust(fs, fs->win + dp->dptr % SS(fs)); /* Open next directory */
glebiuskv 0:2f0e1e23c242 3119 }
glebiuskv 0:2f0e1e23c242 3120 }
glebiuskv 0:2f0e1e23c242 3121 }
glebiuskv 0:2f0e1e23c242 3122
glebiuskv 0:2f0e1e23c242 3123 return res;
glebiuskv 0:2f0e1e23c242 3124 }
glebiuskv 0:2f0e1e23c242 3125
glebiuskv 0:2f0e1e23c242 3126
glebiuskv 0:2f0e1e23c242 3127
glebiuskv 0:2f0e1e23c242 3128
glebiuskv 0:2f0e1e23c242 3129 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3130 /* Get logical drive number from path name */
glebiuskv 0:2f0e1e23c242 3131 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3132
glebiuskv 0:2f0e1e23c242 3133 static
glebiuskv 0:2f0e1e23c242 3134 int get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
glebiuskv 0:2f0e1e23c242 3135 const TCHAR** path /* Pointer to pointer to the path name */
glebiuskv 0:2f0e1e23c242 3136 )
glebiuskv 0:2f0e1e23c242 3137 {
glebiuskv 0:2f0e1e23c242 3138 const TCHAR *tp, *tt;
glebiuskv 0:2f0e1e23c242 3139 UINT i;
glebiuskv 0:2f0e1e23c242 3140 int vol = -1;
glebiuskv 0:2f0e1e23c242 3141 #if FF_STR_VOLUME_ID /* Find string drive id */
glebiuskv 0:2f0e1e23c242 3142 static const char* const volid[] = {FF_VOLUME_STRS};
glebiuskv 0:2f0e1e23c242 3143 const char *sp;
glebiuskv 0:2f0e1e23c242 3144 char c;
glebiuskv 0:2f0e1e23c242 3145 TCHAR tc;
glebiuskv 0:2f0e1e23c242 3146 #endif
glebiuskv 0:2f0e1e23c242 3147
glebiuskv 0:2f0e1e23c242 3148
glebiuskv 0:2f0e1e23c242 3149 if (*path != 0) { /* If the pointer is not a null */
glebiuskv 0:2f0e1e23c242 3150 for (tt = *path; (UINT)*tt >= (FF_USE_LFN ? ' ' : '!') && *tt != ':'; tt++) ; /* Find a colon in the path */
glebiuskv 0:2f0e1e23c242 3151 if (*tt == ':') { /* If a colon is exist in the path name */
glebiuskv 0:2f0e1e23c242 3152 tp = *path;
glebiuskv 0:2f0e1e23c242 3153 i = *tp++;
glebiuskv 0:2f0e1e23c242 3154 if (IsDigit(i) && tp == tt) { /* Is there a numeric drive id + colon? */
glebiuskv 0:2f0e1e23c242 3155 if ((i -= '0') < FF_VOLUMES) { /* If drive id is found, get the value and strip it */
glebiuskv 0:2f0e1e23c242 3156 vol = (int)i;
glebiuskv 0:2f0e1e23c242 3157 *path = ++tt;
glebiuskv 0:2f0e1e23c242 3158 }
glebiuskv 0:2f0e1e23c242 3159 }
glebiuskv 0:2f0e1e23c242 3160 #if FF_STR_VOLUME_ID
glebiuskv 0:2f0e1e23c242 3161 else { /* No numeric drive number, find string drive id */
glebiuskv 0:2f0e1e23c242 3162 i = 0; tt++;
glebiuskv 0:2f0e1e23c242 3163 do {
glebiuskv 0:2f0e1e23c242 3164 sp = volid[i]; tp = *path;
glebiuskv 0:2f0e1e23c242 3165 do { /* Compare a string drive id with path name */
glebiuskv 0:2f0e1e23c242 3166 c = *sp++; tc = *tp++;
glebiuskv 0:2f0e1e23c242 3167 if (IsLower(tc)) tc -= 0x20;
glebiuskv 0:2f0e1e23c242 3168 } while (c && (TCHAR)c == tc);
glebiuskv 0:2f0e1e23c242 3169 } while ((c || tp != tt) && ++i < FF_VOLUMES); /* Repeat for each id until pattern match */
glebiuskv 0:2f0e1e23c242 3170 if (i < FF_VOLUMES) { /* If a drive id is found, get the value and strip it */
glebiuskv 0:2f0e1e23c242 3171 vol = (int)i;
glebiuskv 0:2f0e1e23c242 3172 *path = tt;
glebiuskv 0:2f0e1e23c242 3173 }
glebiuskv 0:2f0e1e23c242 3174 }
glebiuskv 0:2f0e1e23c242 3175 #endif
glebiuskv 0:2f0e1e23c242 3176 } else { /* No volume id and use default drive */
glebiuskv 0:2f0e1e23c242 3177 #if FF_FS_RPATH != 0 && FF_VOLUMES >= 2
glebiuskv 0:2f0e1e23c242 3178 vol = CurrVol; /* Current drive */
glebiuskv 0:2f0e1e23c242 3179 #else
glebiuskv 0:2f0e1e23c242 3180 vol = 0; /* Drive 0 */
glebiuskv 0:2f0e1e23c242 3181 #endif
glebiuskv 0:2f0e1e23c242 3182 }
glebiuskv 0:2f0e1e23c242 3183 }
glebiuskv 0:2f0e1e23c242 3184 return vol;
glebiuskv 0:2f0e1e23c242 3185 }
glebiuskv 0:2f0e1e23c242 3186
glebiuskv 0:2f0e1e23c242 3187
glebiuskv 0:2f0e1e23c242 3188
glebiuskv 0:2f0e1e23c242 3189
glebiuskv 0:2f0e1e23c242 3190 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3191 /* Load a sector and check if it is an FAT VBR */
glebiuskv 0:2f0e1e23c242 3192 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3193
glebiuskv 0:2f0e1e23c242 3194 static
glebiuskv 0:2f0e1e23c242 3195 BYTE check_fs ( /* 0:FAT, 1:exFAT, 2:Valid BS but not FAT, 3:Not a BS, 4:Disk error */
glebiuskv 0:2f0e1e23c242 3196 FATFS* fs, /* Filesystem object */
glebiuskv 0:2f0e1e23c242 3197 DWORD sect /* Sector# (lba) to load and check if it is an FAT-VBR or not */
glebiuskv 0:2f0e1e23c242 3198 )
glebiuskv 0:2f0e1e23c242 3199 {
glebiuskv 0:2f0e1e23c242 3200 fs->wflag = 0; fs->winsect = 0xFFFFFFFF; /* Invaidate window */
glebiuskv 0:2f0e1e23c242 3201 if (move_window(fs, sect) != FR_OK) return 4; /* Load boot record */
glebiuskv 0:2f0e1e23c242 3202
glebiuskv 0:2f0e1e23c242 3203 if (ld_word(fs->win + BS_55AA) != 0xAA55) return 3; /* Check boot record signature (always placed here even if the sector size is >512) */
glebiuskv 0:2f0e1e23c242 3204
glebiuskv 0:2f0e1e23c242 3205 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3206 if (!mem_cmp(fs->win + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11)) return 1; /* Check if exFAT VBR */
glebiuskv 0:2f0e1e23c242 3207 #endif
glebiuskv 0:2f0e1e23c242 3208 if (fs->win[BS_JmpBoot] == 0xE9 || fs->win[BS_JmpBoot] == 0xEB || fs->win[BS_JmpBoot] == 0xE8) { /* Valid JumpBoot code? */
glebiuskv 0:2f0e1e23c242 3209 if (!mem_cmp(fs->win + BS_FilSysType, "FAT", 3)) return 0; /* Is it an FAT VBR? */
glebiuskv 0:2f0e1e23c242 3210 if (!mem_cmp(fs->win + BS_FilSysType32, "FAT32", 5)) return 0; /* Is it an FAT32 VBR? */
glebiuskv 0:2f0e1e23c242 3211 }
glebiuskv 0:2f0e1e23c242 3212 return 2; /* Valid BS but not FAT */
glebiuskv 0:2f0e1e23c242 3213 }
glebiuskv 0:2f0e1e23c242 3214
glebiuskv 0:2f0e1e23c242 3215
glebiuskv 0:2f0e1e23c242 3216
glebiuskv 0:2f0e1e23c242 3217
glebiuskv 0:2f0e1e23c242 3218 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3219 /* Determine logical drive number and mount the volume if needed */
glebiuskv 0:2f0e1e23c242 3220 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3221
glebiuskv 0:2f0e1e23c242 3222 static
glebiuskv 0:2f0e1e23c242 3223 FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
glebiuskv 0:2f0e1e23c242 3224 const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
glebiuskv 0:2f0e1e23c242 3225 FATFS** rfs, /* Pointer to pointer to the found filesystem object */
glebiuskv 0:2f0e1e23c242 3226 BYTE mode /* !=0: Check write protection for write access */
glebiuskv 0:2f0e1e23c242 3227 )
glebiuskv 0:2f0e1e23c242 3228 {
glebiuskv 0:2f0e1e23c242 3229 BYTE fmt, *pt;
glebiuskv 0:2f0e1e23c242 3230 int vol;
glebiuskv 0:2f0e1e23c242 3231 DSTATUS stat;
glebiuskv 0:2f0e1e23c242 3232 DWORD bsect, fasize, tsect, sysect, nclst, szbfat, br[4];
glebiuskv 0:2f0e1e23c242 3233 WORD nrsv;
glebiuskv 0:2f0e1e23c242 3234 FATFS *fs;
glebiuskv 0:2f0e1e23c242 3235 UINT i;
glebiuskv 0:2f0e1e23c242 3236
glebiuskv 0:2f0e1e23c242 3237
glebiuskv 0:2f0e1e23c242 3238 /* Get logical drive number */
glebiuskv 0:2f0e1e23c242 3239 *rfs = 0;
glebiuskv 0:2f0e1e23c242 3240 vol = get_ldnumber(path);
glebiuskv 0:2f0e1e23c242 3241 if (vol < 0) return FR_INVALID_DRIVE;
glebiuskv 0:2f0e1e23c242 3242
glebiuskv 0:2f0e1e23c242 3243 /* Check if the filesystem object is valid or not */
glebiuskv 0:2f0e1e23c242 3244 fs = FatFs[vol]; /* Get pointer to the filesystem object */
glebiuskv 0:2f0e1e23c242 3245 if (!fs) return FR_NOT_ENABLED; /* Is the filesystem object available? */
glebiuskv 0:2f0e1e23c242 3246 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 3247 if (!lock_fs(fs)) return FR_TIMEOUT; /* Lock the volume */
glebiuskv 0:2f0e1e23c242 3248 #endif
glebiuskv 0:2f0e1e23c242 3249 *rfs = fs; /* Return pointer to the filesystem object */
glebiuskv 0:2f0e1e23c242 3250
glebiuskv 0:2f0e1e23c242 3251 mode &= (BYTE)~FA_READ; /* Desired access mode, write access or not */
glebiuskv 0:2f0e1e23c242 3252 if (fs->fs_type != 0) { /* If the volume has been mounted */
glebiuskv 0:2f0e1e23c242 3253 stat = disk_status(fs->pdrv);
glebiuskv 0:2f0e1e23c242 3254 if (!(stat & STA_NOINIT)) { /* and the physical drive is kept initialized */
glebiuskv 0:2f0e1e23c242 3255 if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check write protection if needed */
glebiuskv 0:2f0e1e23c242 3256 return FR_WRITE_PROTECTED;
glebiuskv 0:2f0e1e23c242 3257 }
glebiuskv 0:2f0e1e23c242 3258 return FR_OK; /* The filesystem object is valid */
glebiuskv 0:2f0e1e23c242 3259 }
glebiuskv 0:2f0e1e23c242 3260 }
glebiuskv 0:2f0e1e23c242 3261
glebiuskv 0:2f0e1e23c242 3262 /* The filesystem object is not valid. */
glebiuskv 0:2f0e1e23c242 3263 /* Following code attempts to mount the volume. (analyze BPB and initialize the filesystem object) */
glebiuskv 0:2f0e1e23c242 3264
glebiuskv 0:2f0e1e23c242 3265 fs->fs_type = 0; /* Clear the filesystem object */
glebiuskv 0:2f0e1e23c242 3266 fs->pdrv = LD2PD(vol); /* Bind the logical drive and a physical drive */
glebiuskv 0:2f0e1e23c242 3267 stat = disk_initialize(fs->pdrv); /* Initialize the physical drive */
glebiuskv 0:2f0e1e23c242 3268 if (stat & STA_NOINIT) { /* Check if the initialization succeeded */
glebiuskv 0:2f0e1e23c242 3269 return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
glebiuskv 0:2f0e1e23c242 3270 }
glebiuskv 0:2f0e1e23c242 3271 if (!FF_FS_READONLY && mode && (stat & STA_PROTECT)) { /* Check disk write protection if needed */
glebiuskv 0:2f0e1e23c242 3272 return FR_WRITE_PROTECTED;
glebiuskv 0:2f0e1e23c242 3273 }
glebiuskv 0:2f0e1e23c242 3274 #if FF_MAX_SS != FF_MIN_SS /* Get sector size (multiple sector size cfg only) */
glebiuskv 0:2f0e1e23c242 3275 if (disk_ioctl(fs->pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 3276 if (SS(fs) > FF_MAX_SS || SS(fs) < FF_MIN_SS || (SS(fs) & (SS(fs) - 1))) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 3277 #endif
glebiuskv 0:2f0e1e23c242 3278
glebiuskv 0:2f0e1e23c242 3279 #if FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 3280 if (!fs->win) {
glebiuskv 0:2f0e1e23c242 3281 fs->win = (BYTE*)ff_memalloc(SS(fs)); /* Allocate buffer to back window if necessary */
glebiuskv 0:2f0e1e23c242 3282 if (!fs->win)
glebiuskv 0:2f0e1e23c242 3283 return FR_NOT_ENOUGH_CORE;
glebiuskv 0:2f0e1e23c242 3284 }
glebiuskv 0:2f0e1e23c242 3285 #endif
glebiuskv 0:2f0e1e23c242 3286
glebiuskv 0:2f0e1e23c242 3287 /* Find an FAT partition on the drive. Supports only generic partitioning rules, FDISK and SFD. */
glebiuskv 0:2f0e1e23c242 3288 bsect = 0;
glebiuskv 0:2f0e1e23c242 3289 fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT-VBR as SFD */
glebiuskv 0:2f0e1e23c242 3290 if (fmt == 2 || (fmt < 2 && LD2PT(vol) != 0)) { /* Not an FAT-VBR or forced partition number */
glebiuskv 0:2f0e1e23c242 3291 for (i = 0; i < 4; i++) { /* Get partition offset */
glebiuskv 0:2f0e1e23c242 3292 pt = fs->win + (MBR_Table + i * SZ_PTE);
glebiuskv 0:2f0e1e23c242 3293 br[i] = pt[PTE_System] ? ld_dword(pt + PTE_StLba) : 0;
glebiuskv 0:2f0e1e23c242 3294 }
glebiuskv 0:2f0e1e23c242 3295 i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
glebiuskv 0:2f0e1e23c242 3296 if (i != 0) i--;
glebiuskv 0:2f0e1e23c242 3297 do { /* Find an FAT volume */
glebiuskv 0:2f0e1e23c242 3298 bsect = br[i];
glebiuskv 0:2f0e1e23c242 3299 fmt = bsect ? check_fs(fs, bsect) : 3; /* Check the partition */
glebiuskv 0:2f0e1e23c242 3300 } while (LD2PT(vol) == 0 && fmt >= 2 && ++i < 4);
glebiuskv 0:2f0e1e23c242 3301 }
glebiuskv 0:2f0e1e23c242 3302 if (fmt == 4) return FR_DISK_ERR; /* An error occured in the disk I/O layer */
glebiuskv 0:2f0e1e23c242 3303 if (fmt >= 2) return FR_NO_FILESYSTEM; /* No FAT volume is found */
glebiuskv 0:2f0e1e23c242 3304
glebiuskv 0:2f0e1e23c242 3305 /* An FAT volume is found (bsect). Following code initializes the filesystem object */
glebiuskv 0:2f0e1e23c242 3306
glebiuskv 0:2f0e1e23c242 3307 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3308 if (fmt == 1) {
glebiuskv 0:2f0e1e23c242 3309 QWORD maxlba;
glebiuskv 0:2f0e1e23c242 3310
glebiuskv 0:2f0e1e23c242 3311 for (i = BPB_ZeroedEx; i < BPB_ZeroedEx + 53 && fs->win[i] == 0; i++) ; /* Check zero filler */
glebiuskv 0:2f0e1e23c242 3312 if (i < BPB_ZeroedEx + 53) return FR_NO_FILESYSTEM;
glebiuskv 0:2f0e1e23c242 3313
glebiuskv 0:2f0e1e23c242 3314 if (ld_word(fs->win + BPB_FSVerEx) != 0x100) return FR_NO_FILESYSTEM; /* Check exFAT version (must be version 1.0) */
glebiuskv 0:2f0e1e23c242 3315
glebiuskv 0:2f0e1e23c242 3316 if (1 << fs->win[BPB_BytsPerSecEx] != SS(fs)) { /* (BPB_BytsPerSecEx must be equal to the physical sector size) */
glebiuskv 0:2f0e1e23c242 3317 return FR_NO_FILESYSTEM;
glebiuskv 0:2f0e1e23c242 3318 }
glebiuskv 0:2f0e1e23c242 3319
glebiuskv 0:2f0e1e23c242 3320 maxlba = ld_qword(fs->win + BPB_TotSecEx) + bsect; /* Last LBA + 1 of the volume */
glebiuskv 0:2f0e1e23c242 3321 if (maxlba >= 0x100000000) return FR_NO_FILESYSTEM; /* (It cannot be handled in 32-bit LBA) */
glebiuskv 0:2f0e1e23c242 3322
glebiuskv 0:2f0e1e23c242 3323 fs->fsize = ld_dword(fs->win + BPB_FatSzEx); /* Number of sectors per FAT */
glebiuskv 0:2f0e1e23c242 3324
glebiuskv 0:2f0e1e23c242 3325 fs->n_fats = fs->win[BPB_NumFATsEx]; /* Number of FATs */
glebiuskv 0:2f0e1e23c242 3326 if (fs->n_fats != 1) return FR_NO_FILESYSTEM; /* (Supports only 1 FAT) */
glebiuskv 0:2f0e1e23c242 3327
glebiuskv 0:2f0e1e23c242 3328 fs->csize = 1 << fs->win[BPB_SecPerClusEx]; /* Cluster size */
glebiuskv 0:2f0e1e23c242 3329 if (fs->csize == 0) return FR_NO_FILESYSTEM; /* (Must be 1..32768) */
glebiuskv 0:2f0e1e23c242 3330
glebiuskv 0:2f0e1e23c242 3331 nclst = ld_dword(fs->win + BPB_NumClusEx); /* Number of clusters */
glebiuskv 0:2f0e1e23c242 3332 if (nclst > MAX_EXFAT) return FR_NO_FILESYSTEM; /* (Too many clusters) */
glebiuskv 0:2f0e1e23c242 3333 fs->n_fatent = nclst + 2;
glebiuskv 0:2f0e1e23c242 3334
glebiuskv 0:2f0e1e23c242 3335 /* Boundaries and Limits */
glebiuskv 0:2f0e1e23c242 3336 fs->volbase = bsect;
glebiuskv 0:2f0e1e23c242 3337 fs->database = bsect + ld_dword(fs->win + BPB_DataOfsEx);
glebiuskv 0:2f0e1e23c242 3338 fs->fatbase = bsect + ld_dword(fs->win + BPB_FatOfsEx);
glebiuskv 0:2f0e1e23c242 3339 if (maxlba < (QWORD)fs->database + nclst * fs->csize) return FR_NO_FILESYSTEM; /* (Volume size must not be smaller than the size requiered) */
glebiuskv 0:2f0e1e23c242 3340 fs->dirbase = ld_dword(fs->win + BPB_RootClusEx);
glebiuskv 0:2f0e1e23c242 3341
glebiuskv 0:2f0e1e23c242 3342 /* Check if bitmap location is in assumption (at the first cluster) */
glebiuskv 0:2f0e1e23c242 3343 if (move_window(fs, clst2sect(fs, fs->dirbase)) != FR_OK) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 3344 for (i = 0; i < SS(fs); i += SZDIRE) {
glebiuskv 0:2f0e1e23c242 3345 if (fs->win[i] == 0x81 && ld_dword(fs->win + i + 20) == 2) break; /* 81 entry with cluster #2? */
glebiuskv 0:2f0e1e23c242 3346 }
glebiuskv 0:2f0e1e23c242 3347 if (i == SS(fs)) return FR_NO_FILESYSTEM;
glebiuskv 0:2f0e1e23c242 3348 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3349 fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */
glebiuskv 0:2f0e1e23c242 3350 #endif
glebiuskv 0:2f0e1e23c242 3351 fmt = FS_EXFAT; /* FAT sub-type */
glebiuskv 0:2f0e1e23c242 3352 } else
glebiuskv 0:2f0e1e23c242 3353 #endif /* FF_FS_EXFAT */
glebiuskv 0:2f0e1e23c242 3354 {
glebiuskv 0:2f0e1e23c242 3355 if (ld_word(fs->win + BPB_BytsPerSec) != SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_BytsPerSec must be equal to the physical sector size) */
glebiuskv 0:2f0e1e23c242 3356
glebiuskv 0:2f0e1e23c242 3357 fasize = ld_word(fs->win + BPB_FATSz16); /* Number of sectors per FAT */
glebiuskv 0:2f0e1e23c242 3358 if (fasize == 0) fasize = ld_dword(fs->win + BPB_FATSz32);
glebiuskv 0:2f0e1e23c242 3359 fs->fsize = fasize;
glebiuskv 0:2f0e1e23c242 3360
glebiuskv 0:2f0e1e23c242 3361 fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FATs */
glebiuskv 0:2f0e1e23c242 3362 if (fs->n_fats != 1 && fs->n_fats != 2) return FR_NO_FILESYSTEM; /* (Must be 1 or 2) */
glebiuskv 0:2f0e1e23c242 3363 fasize *= fs->n_fats; /* Number of sectors for FAT area */
glebiuskv 0:2f0e1e23c242 3364
glebiuskv 0:2f0e1e23c242 3365 fs->csize = fs->win[BPB_SecPerClus]; /* Cluster size */
glebiuskv 0:2f0e1e23c242 3366 if (fs->csize == 0 || (fs->csize & (fs->csize - 1))) return FR_NO_FILESYSTEM; /* (Must be power of 2) */
glebiuskv 0:2f0e1e23c242 3367
glebiuskv 0:2f0e1e23c242 3368 fs->n_rootdir = ld_word(fs->win + BPB_RootEntCnt); /* Number of root directory entries */
glebiuskv 0:2f0e1e23c242 3369 if (fs->n_rootdir % (SS(fs) / SZDIRE)) return FR_NO_FILESYSTEM; /* (Must be sector aligned) */
glebiuskv 0:2f0e1e23c242 3370
glebiuskv 0:2f0e1e23c242 3371 tsect = ld_word(fs->win + BPB_TotSec16); /* Number of sectors on the volume */
glebiuskv 0:2f0e1e23c242 3372 if (tsect == 0) tsect = ld_dword(fs->win + BPB_TotSec32);
glebiuskv 0:2f0e1e23c242 3373
glebiuskv 0:2f0e1e23c242 3374 nrsv = ld_word(fs->win + BPB_RsvdSecCnt); /* Number of reserved sectors */
glebiuskv 0:2f0e1e23c242 3375 if (nrsv == 0) return FR_NO_FILESYSTEM; /* (Must not be 0) */
glebiuskv 0:2f0e1e23c242 3376
glebiuskv 0:2f0e1e23c242 3377 /* Determine the FAT sub type */
glebiuskv 0:2f0e1e23c242 3378 sysect = nrsv + fasize + fs->n_rootdir / (SS(fs) / SZDIRE); /* RSV + FAT + FATFS_DIR */
glebiuskv 0:2f0e1e23c242 3379 if (tsect < sysect) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
glebiuskv 0:2f0e1e23c242 3380 nclst = (tsect - sysect) / fs->csize; /* Number of clusters */
glebiuskv 0:2f0e1e23c242 3381 if (nclst == 0) return FR_NO_FILESYSTEM; /* (Invalid volume size) */
glebiuskv 0:2f0e1e23c242 3382 fmt = 0;
glebiuskv 0:2f0e1e23c242 3383 if (nclst <= MAX_FAT32) fmt = FS_FAT32;
glebiuskv 0:2f0e1e23c242 3384 if (nclst <= MAX_FAT16) fmt = FS_FAT16;
glebiuskv 0:2f0e1e23c242 3385 if (nclst <= MAX_FAT12) fmt = FS_FAT12;
glebiuskv 0:2f0e1e23c242 3386 if (fmt == 0) return FR_NO_FILESYSTEM;
glebiuskv 0:2f0e1e23c242 3387
glebiuskv 0:2f0e1e23c242 3388 /* Boundaries and Limits */
glebiuskv 0:2f0e1e23c242 3389 fs->n_fatent = nclst + 2; /* Number of FAT entries */
glebiuskv 0:2f0e1e23c242 3390 fs->volbase = bsect; /* Volume start sector */
glebiuskv 0:2f0e1e23c242 3391 fs->fatbase = bsect + nrsv; /* FAT start sector */
glebiuskv 0:2f0e1e23c242 3392 fs->database = bsect + sysect; /* Data start sector */
glebiuskv 0:2f0e1e23c242 3393 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 3394 if (ld_word(fs->win + BPB_FSVer32) != 0) return FR_NO_FILESYSTEM; /* (Must be FAT32 revision 0.0) */
glebiuskv 0:2f0e1e23c242 3395 if (fs->n_rootdir != 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
glebiuskv 0:2f0e1e23c242 3396 fs->dirbase = ld_dword(fs->win + BPB_RootClus32); /* Root directory start cluster */
glebiuskv 0:2f0e1e23c242 3397 szbfat = fs->n_fatent * 4; /* (Needed FAT size) */
glebiuskv 0:2f0e1e23c242 3398 } else {
glebiuskv 0:2f0e1e23c242 3399 if (fs->n_rootdir == 0) return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
glebiuskv 0:2f0e1e23c242 3400 fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
glebiuskv 0:2f0e1e23c242 3401 szbfat = (fmt == FS_FAT16) ? /* (Needed FAT size) */
glebiuskv 0:2f0e1e23c242 3402 fs->n_fatent * 2 : fs->n_fatent * 3 / 2 + (fs->n_fatent & 1);
glebiuskv 0:2f0e1e23c242 3403 }
glebiuskv 0:2f0e1e23c242 3404 if (fs->fsize < (szbfat + (SS(fs) - 1)) / SS(fs)) return FR_NO_FILESYSTEM; /* (BPB_FATSz must not be less than the size needed) */
glebiuskv 0:2f0e1e23c242 3405
glebiuskv 0:2f0e1e23c242 3406 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3407 /* Get FSInfo if available */
glebiuskv 0:2f0e1e23c242 3408 fs->last_clst = fs->free_clst = 0xFFFFFFFF; /* Initialize cluster allocation information */
glebiuskv 0:2f0e1e23c242 3409 fs->fsi_flag = 0x80;
glebiuskv 0:2f0e1e23c242 3410 #if (FF_FS_NOFSINFO & 3) != 3
glebiuskv 0:2f0e1e23c242 3411 if (fmt == FS_FAT32 /* Allow to update FSInfo only if BPB_FSInfo32 == 1 */
glebiuskv 0:2f0e1e23c242 3412 && ld_word(fs->win + BPB_FSInfo32) == 1
glebiuskv 0:2f0e1e23c242 3413 && move_window(fs, bsect + 1) == FR_OK)
glebiuskv 0:2f0e1e23c242 3414 {
glebiuskv 0:2f0e1e23c242 3415 fs->fsi_flag = 0;
glebiuskv 0:2f0e1e23c242 3416 if (ld_word(fs->win + BS_55AA) == 0xAA55 /* Load FSInfo data if available */
glebiuskv 0:2f0e1e23c242 3417 && ld_dword(fs->win + FSI_LeadSig) == 0x41615252
glebiuskv 0:2f0e1e23c242 3418 && ld_dword(fs->win + FSI_StrucSig) == 0x61417272)
glebiuskv 0:2f0e1e23c242 3419 {
glebiuskv 0:2f0e1e23c242 3420 #if (FF_FS_NOFSINFO & 1) == 0
glebiuskv 0:2f0e1e23c242 3421 fs->free_clst = ld_dword(fs->win + FSI_Free_Count);
glebiuskv 0:2f0e1e23c242 3422 #endif
glebiuskv 0:2f0e1e23c242 3423 #if (FF_FS_NOFSINFO & 2) == 0
glebiuskv 0:2f0e1e23c242 3424 fs->last_clst = ld_dword(fs->win + FSI_Nxt_Free);
glebiuskv 0:2f0e1e23c242 3425 #endif
glebiuskv 0:2f0e1e23c242 3426 }
glebiuskv 0:2f0e1e23c242 3427 }
glebiuskv 0:2f0e1e23c242 3428 #endif /* (FF_FS_NOFSINFO & 3) != 3 */
glebiuskv 0:2f0e1e23c242 3429 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 3430 }
glebiuskv 0:2f0e1e23c242 3431
glebiuskv 0:2f0e1e23c242 3432 fs->fs_type = fmt; /* FAT sub-type */
glebiuskv 0:2f0e1e23c242 3433 fs->id = ++Fsid; /* Volume mount ID */
glebiuskv 0:2f0e1e23c242 3434 #if FF_USE_LFN == 1
glebiuskv 0:2f0e1e23c242 3435 fs->lfnbuf = LfnBuf; /* Static LFN working buffer */
glebiuskv 0:2f0e1e23c242 3436 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3437 fs->dirbuf = DirBuf; /* Static directory block scratchpad buuffer */
glebiuskv 0:2f0e1e23c242 3438 #endif
glebiuskv 0:2f0e1e23c242 3439 #endif
glebiuskv 0:2f0e1e23c242 3440 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 3441 fs->cdir = 0; /* Initialize current directory */
glebiuskv 0:2f0e1e23c242 3442 #endif
glebiuskv 0:2f0e1e23c242 3443 #if FF_FS_LOCK != 0 /* Clear file lock semaphores */
glebiuskv 0:2f0e1e23c242 3444 clear_lock(fs);
glebiuskv 0:2f0e1e23c242 3445 #endif
glebiuskv 0:2f0e1e23c242 3446 return FR_OK;
glebiuskv 0:2f0e1e23c242 3447 }
glebiuskv 0:2f0e1e23c242 3448
glebiuskv 0:2f0e1e23c242 3449
glebiuskv 0:2f0e1e23c242 3450
glebiuskv 0:2f0e1e23c242 3451
glebiuskv 0:2f0e1e23c242 3452 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3453 /* Check if the file/directory object is valid or not */
glebiuskv 0:2f0e1e23c242 3454 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3455
glebiuskv 0:2f0e1e23c242 3456 static
glebiuskv 0:2f0e1e23c242 3457 FRESULT validate ( /* Returns FR_OK or FR_INVALID_OBJECT */
glebiuskv 0:2f0e1e23c242 3458 FFOBJID* obj, /* Pointer to the FFOBJID, the 1st member in the FIL/FATFS_DIR object, to check validity */
glebiuskv 0:2f0e1e23c242 3459 FATFS** rfs /* Pointer to pointer to the owner filesystem object to return */
glebiuskv 0:2f0e1e23c242 3460 )
glebiuskv 0:2f0e1e23c242 3461 {
glebiuskv 0:2f0e1e23c242 3462 FRESULT res = FR_INVALID_OBJECT;
glebiuskv 0:2f0e1e23c242 3463
glebiuskv 0:2f0e1e23c242 3464
glebiuskv 0:2f0e1e23c242 3465 if (obj && obj->fs && obj->fs->fs_type && obj->id == obj->fs->id) { /* Test if the object is valid */
glebiuskv 0:2f0e1e23c242 3466 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 3467 if (lock_fs(obj->fs)) { /* Obtain the filesystem object */
glebiuskv 0:2f0e1e23c242 3468 if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */
glebiuskv 0:2f0e1e23c242 3469 res = FR_OK;
glebiuskv 0:2f0e1e23c242 3470 } else {
glebiuskv 0:2f0e1e23c242 3471 unlock_fs(obj->fs, FR_OK);
glebiuskv 0:2f0e1e23c242 3472 }
glebiuskv 0:2f0e1e23c242 3473 } else {
glebiuskv 0:2f0e1e23c242 3474 res = FR_TIMEOUT;
glebiuskv 0:2f0e1e23c242 3475 }
glebiuskv 0:2f0e1e23c242 3476 #else
glebiuskv 0:2f0e1e23c242 3477 if (!(disk_status(obj->fs->pdrv) & STA_NOINIT)) { /* Test if the phsical drive is kept initialized */
glebiuskv 0:2f0e1e23c242 3478 res = FR_OK;
glebiuskv 0:2f0e1e23c242 3479 }
glebiuskv 0:2f0e1e23c242 3480 #endif
glebiuskv 0:2f0e1e23c242 3481 }
glebiuskv 0:2f0e1e23c242 3482 *rfs = (res == FR_OK) ? obj->fs : 0; /* Corresponding filesystem object */
glebiuskv 0:2f0e1e23c242 3483 return res;
glebiuskv 0:2f0e1e23c242 3484 }
glebiuskv 0:2f0e1e23c242 3485
glebiuskv 0:2f0e1e23c242 3486
glebiuskv 0:2f0e1e23c242 3487
glebiuskv 0:2f0e1e23c242 3488
glebiuskv 0:2f0e1e23c242 3489 /*---------------------------------------------------------------------------
glebiuskv 0:2f0e1e23c242 3490
glebiuskv 0:2f0e1e23c242 3491 Public Functions (FatFs API)
glebiuskv 0:2f0e1e23c242 3492
glebiuskv 0:2f0e1e23c242 3493 ----------------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3494
glebiuskv 0:2f0e1e23c242 3495
glebiuskv 0:2f0e1e23c242 3496
glebiuskv 0:2f0e1e23c242 3497 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3498 /* Mount/Unmount a Logical Drive */
glebiuskv 0:2f0e1e23c242 3499 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3500
glebiuskv 0:2f0e1e23c242 3501 FRESULT f_mount (
glebiuskv 0:2f0e1e23c242 3502 FATFS* fs, /* Pointer to the filesystem object (NULL:unmount)*/
glebiuskv 0:2f0e1e23c242 3503 const TCHAR* path, /* Logical drive number to be mounted/unmounted */
glebiuskv 0:2f0e1e23c242 3504 BYTE opt /* Mode option 0:Do not mount (delayed mount), 1:Mount immediately */
glebiuskv 0:2f0e1e23c242 3505 )
glebiuskv 0:2f0e1e23c242 3506 {
glebiuskv 0:2f0e1e23c242 3507 FATFS *cfs;
glebiuskv 0:2f0e1e23c242 3508 int vol;
glebiuskv 0:2f0e1e23c242 3509 FRESULT res;
glebiuskv 0:2f0e1e23c242 3510 const TCHAR *rp = path;
glebiuskv 0:2f0e1e23c242 3511
glebiuskv 0:2f0e1e23c242 3512
glebiuskv 0:2f0e1e23c242 3513 /* Get logical drive number */
glebiuskv 0:2f0e1e23c242 3514 vol = get_ldnumber(&rp);
glebiuskv 0:2f0e1e23c242 3515 if (vol < 0) return FR_INVALID_DRIVE;
glebiuskv 0:2f0e1e23c242 3516 cfs = FatFs[vol]; /* Pointer to fs object */
glebiuskv 0:2f0e1e23c242 3517
glebiuskv 0:2f0e1e23c242 3518 if (cfs) {
glebiuskv 0:2f0e1e23c242 3519 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 3520 clear_lock(cfs);
glebiuskv 0:2f0e1e23c242 3521 #endif
glebiuskv 0:2f0e1e23c242 3522 #if FF_FS_REENTRANT /* Discard sync object of the current volume */
glebiuskv 0:2f0e1e23c242 3523 if (!ff_del_syncobj(cfs->sobj)) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 3524 #endif
glebiuskv 0:2f0e1e23c242 3525 cfs->fs_type = 0; /* Clear old fs object */
glebiuskv 0:2f0e1e23c242 3526 #if FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 3527 ff_memfree(cfs->win); /* Clean up window buffer */
glebiuskv 0:2f0e1e23c242 3528 #endif
glebiuskv 0:2f0e1e23c242 3529 }
glebiuskv 0:2f0e1e23c242 3530
glebiuskv 0:2f0e1e23c242 3531 if (fs) {
glebiuskv 0:2f0e1e23c242 3532 fs->fs_type = 0; /* Clear new fs object */
glebiuskv 0:2f0e1e23c242 3533 #if FF_FS_REENTRANT /* Create sync object for the new volume */
glebiuskv 0:2f0e1e23c242 3534 if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 3535 #endif
glebiuskv 0:2f0e1e23c242 3536 #if FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 3537 fs->win = 0; /* NULL buffer to prevent use of uninitialized buffer */
glebiuskv 0:2f0e1e23c242 3538 #endif
glebiuskv 0:2f0e1e23c242 3539 }
glebiuskv 0:2f0e1e23c242 3540 FatFs[vol] = fs; /* Register new fs object */
glebiuskv 0:2f0e1e23c242 3541
glebiuskv 0:2f0e1e23c242 3542 if (opt == 0) return FR_OK; /* Do not mount now, it will be mounted later */
glebiuskv 0:2f0e1e23c242 3543
glebiuskv 0:2f0e1e23c242 3544 res = find_volume(&path, &fs, 0); /* Force mounted the volume */
glebiuskv 0:2f0e1e23c242 3545 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 3546 }
glebiuskv 0:2f0e1e23c242 3547
glebiuskv 0:2f0e1e23c242 3548
glebiuskv 0:2f0e1e23c242 3549
glebiuskv 0:2f0e1e23c242 3550
glebiuskv 0:2f0e1e23c242 3551 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3552 /* Open or Create a File */
glebiuskv 0:2f0e1e23c242 3553 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3554
glebiuskv 0:2f0e1e23c242 3555 FRESULT f_open (
glebiuskv 0:2f0e1e23c242 3556 FIL* fp, /* Pointer to the blank file object */
glebiuskv 0:2f0e1e23c242 3557 const TCHAR* path, /* Pointer to the file name */
glebiuskv 0:2f0e1e23c242 3558 BYTE mode /* Access mode and file open mode flags */
glebiuskv 0:2f0e1e23c242 3559 )
glebiuskv 0:2f0e1e23c242 3560 {
glebiuskv 0:2f0e1e23c242 3561 FRESULT res;
glebiuskv 0:2f0e1e23c242 3562 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 3563 FATFS *fs;
glebiuskv 0:2f0e1e23c242 3564 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3565 DWORD dw, cl, bcs, clst, sc;
glebiuskv 0:2f0e1e23c242 3566 FSIZE_t ofs;
glebiuskv 0:2f0e1e23c242 3567 #endif
glebiuskv 0:2f0e1e23c242 3568 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 3569
glebiuskv 0:2f0e1e23c242 3570
glebiuskv 0:2f0e1e23c242 3571 if (!fp) return FR_INVALID_OBJECT;
glebiuskv 0:2f0e1e23c242 3572
glebiuskv 0:2f0e1e23c242 3573 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 3574 mode &= FF_FS_READONLY ? FA_READ : FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_CREATE_NEW | FA_OPEN_ALWAYS | FA_OPEN_APPEND;
glebiuskv 0:2f0e1e23c242 3575 res = find_volume(&path, &fs, mode);
glebiuskv 0:2f0e1e23c242 3576 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3577 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 3578 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 3579 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 3580 #if !FF_FS_READONLY /* Read/Write configuration */
glebiuskv 0:2f0e1e23c242 3581 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3582 if (dj.fn[NSFLAG] & NS_NONAME) { /* Origin directory itself? */
glebiuskv 0:2f0e1e23c242 3583 res = FR_INVALID_NAME;
glebiuskv 0:2f0e1e23c242 3584 }
glebiuskv 0:2f0e1e23c242 3585 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 3586 else {
glebiuskv 0:2f0e1e23c242 3587 res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Check if the file can be used */
glebiuskv 0:2f0e1e23c242 3588 }
glebiuskv 0:2f0e1e23c242 3589 #endif
glebiuskv 0:2f0e1e23c242 3590 }
glebiuskv 0:2f0e1e23c242 3591 /* Create or Open a file */
glebiuskv 0:2f0e1e23c242 3592 if (mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) {
glebiuskv 0:2f0e1e23c242 3593 if (res != FR_OK) { /* No file, create new */
glebiuskv 0:2f0e1e23c242 3594 if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */
glebiuskv 0:2f0e1e23c242 3595 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 3596 res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
glebiuskv 0:2f0e1e23c242 3597 #else
glebiuskv 0:2f0e1e23c242 3598 res = dir_register(&dj);
glebiuskv 0:2f0e1e23c242 3599 #endif
glebiuskv 0:2f0e1e23c242 3600 }
glebiuskv 0:2f0e1e23c242 3601 mode |= FA_CREATE_ALWAYS; /* File is created */
glebiuskv 0:2f0e1e23c242 3602 }
glebiuskv 0:2f0e1e23c242 3603 else { /* Any object with the same name is already existing */
glebiuskv 0:2f0e1e23c242 3604 if (dj.obj.attr & (AM_RDO | AM_DIR)) { /* Cannot overwrite it (R/O or FATFS_DIR) */
glebiuskv 0:2f0e1e23c242 3605 res = FR_DENIED;
glebiuskv 0:2f0e1e23c242 3606 } else {
glebiuskv 0:2f0e1e23c242 3607 if (mode & FA_CREATE_NEW) res = FR_EXIST; /* Cannot create as new file */
glebiuskv 0:2f0e1e23c242 3608 }
glebiuskv 0:2f0e1e23c242 3609 }
glebiuskv 0:2f0e1e23c242 3610 if (res == FR_OK && (mode & FA_CREATE_ALWAYS)) { /* Truncate the file if overwrite mode */
glebiuskv 0:2f0e1e23c242 3611 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3612 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 3613 /* Get current allocation info */
glebiuskv 0:2f0e1e23c242 3614 fp->obj.fs = fs;
glebiuskv 0:2f0e1e23c242 3615 init_alloc_info(fs, &fp->obj);
glebiuskv 0:2f0e1e23c242 3616 /* Set directory entry block initial state */
glebiuskv 0:2f0e1e23c242 3617 mem_set(fs->dirbuf + 2, 0, 30); /* Clear 85 entry except for NumSec */
glebiuskv 0:2f0e1e23c242 3618 mem_set(fs->dirbuf + 38, 0, 26); /* Clear C0 entry except for NumName and NameHash */
glebiuskv 0:2f0e1e23c242 3619 fs->dirbuf[XDIR_Attr] = AM_ARC;
glebiuskv 0:2f0e1e23c242 3620 st_dword(fs->dirbuf + XDIR_CrtTime, GET_FATTIME());
glebiuskv 0:2f0e1e23c242 3621 fs->dirbuf[XDIR_GenFlags] = 1;
glebiuskv 0:2f0e1e23c242 3622 res = store_xdir(&dj);
glebiuskv 0:2f0e1e23c242 3623 if (res == FR_OK && fp->obj.sclust != 0) { /* Remove the cluster chain if exist */
glebiuskv 0:2f0e1e23c242 3624 res = remove_chain(&fp->obj, fp->obj.sclust, 0);
glebiuskv 0:2f0e1e23c242 3625 fs->last_clst = fp->obj.sclust - 1; /* Reuse the cluster hole */
glebiuskv 0:2f0e1e23c242 3626 }
glebiuskv 0:2f0e1e23c242 3627 } else
glebiuskv 0:2f0e1e23c242 3628 #endif
glebiuskv 0:2f0e1e23c242 3629 {
glebiuskv 0:2f0e1e23c242 3630 /* Set directory entry initial state */
glebiuskv 0:2f0e1e23c242 3631 cl = ld_clust(fs, dj.dir); /* Get current cluster chain */
glebiuskv 0:2f0e1e23c242 3632 st_dword(dj.dir + DIR_CrtTime, GET_FATTIME()); /* Set created time */
glebiuskv 0:2f0e1e23c242 3633 dj.dir[DIR_Attr] = AM_ARC; /* Reset attribute */
glebiuskv 0:2f0e1e23c242 3634 st_clust(fs, dj.dir, 0); /* Reset file allocation info */
glebiuskv 0:2f0e1e23c242 3635 st_dword(dj.dir + DIR_FileSize, 0);
glebiuskv 0:2f0e1e23c242 3636 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 3637 if (cl != 0) { /* Remove the cluster chain if exist */
glebiuskv 0:2f0e1e23c242 3638 dw = fs->winsect;
glebiuskv 0:2f0e1e23c242 3639 res = remove_chain(&dj.obj, cl, 0);
glebiuskv 0:2f0e1e23c242 3640 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3641 res = move_window(fs, dw);
glebiuskv 0:2f0e1e23c242 3642 fs->last_clst = cl - 1; /* Reuse the cluster hole */
glebiuskv 0:2f0e1e23c242 3643 }
glebiuskv 0:2f0e1e23c242 3644 }
glebiuskv 0:2f0e1e23c242 3645 }
glebiuskv 0:2f0e1e23c242 3646 }
glebiuskv 0:2f0e1e23c242 3647 }
glebiuskv 0:2f0e1e23c242 3648 else { /* Open an existing file */
glebiuskv 0:2f0e1e23c242 3649 if (res == FR_OK) { /* Is the object exsiting? */
glebiuskv 0:2f0e1e23c242 3650 if (dj.obj.attr & AM_DIR) { /* File open against a directory */
glebiuskv 0:2f0e1e23c242 3651 res = FR_NO_FILE;
glebiuskv 0:2f0e1e23c242 3652 } else {
glebiuskv 0:2f0e1e23c242 3653 if ((mode & FA_WRITE) && (dj.obj.attr & AM_RDO)) { /* Write mode open against R/O file */
glebiuskv 0:2f0e1e23c242 3654 res = FR_DENIED;
glebiuskv 0:2f0e1e23c242 3655 }
glebiuskv 0:2f0e1e23c242 3656 }
glebiuskv 0:2f0e1e23c242 3657 }
glebiuskv 0:2f0e1e23c242 3658 }
glebiuskv 0:2f0e1e23c242 3659 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3660 if (mode & FA_CREATE_ALWAYS) mode |= FA_MODIFIED; /* Set file change flag if created or overwritten */
glebiuskv 0:2f0e1e23c242 3661 fp->dir_sect = fs->winsect; /* Pointer to the directory entry */
glebiuskv 0:2f0e1e23c242 3662 fp->dir_ptr = dj.dir;
glebiuskv 0:2f0e1e23c242 3663 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 3664 fp->obj.lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0); /* Lock the file for this session */
glebiuskv 0:2f0e1e23c242 3665 if (fp->obj.lockid == 0) res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 3666 #endif
glebiuskv 0:2f0e1e23c242 3667 }
glebiuskv 0:2f0e1e23c242 3668 #else /* R/O configuration */
glebiuskv 0:2f0e1e23c242 3669 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3670 if (dj.fn[NSFLAG] & NS_NONAME) { /* Is it origin directory itself? */
glebiuskv 0:2f0e1e23c242 3671 res = FR_INVALID_NAME;
glebiuskv 0:2f0e1e23c242 3672 } else {
glebiuskv 0:2f0e1e23c242 3673 if (dj.obj.attr & AM_DIR) { /* Is it a directory? */
glebiuskv 0:2f0e1e23c242 3674 res = FR_NO_FILE;
glebiuskv 0:2f0e1e23c242 3675 }
glebiuskv 0:2f0e1e23c242 3676 }
glebiuskv 0:2f0e1e23c242 3677 }
glebiuskv 0:2f0e1e23c242 3678 #endif
glebiuskv 0:2f0e1e23c242 3679
glebiuskv 0:2f0e1e23c242 3680 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3681 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 3682 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 3683 fp->obj.c_scl = dj.obj.sclust; /* Get containing directory info */
glebiuskv 0:2f0e1e23c242 3684 fp->obj.c_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;
glebiuskv 0:2f0e1e23c242 3685 fp->obj.c_ofs = dj.blk_ofs;
glebiuskv 0:2f0e1e23c242 3686 init_alloc_info(fs, &fp->obj);
glebiuskv 0:2f0e1e23c242 3687 } else
glebiuskv 0:2f0e1e23c242 3688 #endif
glebiuskv 0:2f0e1e23c242 3689 {
glebiuskv 0:2f0e1e23c242 3690 fp->obj.sclust = ld_clust(fs, dj.dir); /* Get object allocation info */
glebiuskv 0:2f0e1e23c242 3691 fp->obj.objsize = ld_dword(dj.dir + DIR_FileSize);
glebiuskv 0:2f0e1e23c242 3692 }
glebiuskv 0:2f0e1e23c242 3693 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 3694 fp->cltbl = 0; /* Disable fast seek mode */
glebiuskv 0:2f0e1e23c242 3695 #endif
glebiuskv 0:2f0e1e23c242 3696 fp->obj.fs = fs; /* Validate the file object */
glebiuskv 0:2f0e1e23c242 3697 fp->obj.id = fs->id;
glebiuskv 0:2f0e1e23c242 3698 fp->flag = mode; /* Set file access mode */
glebiuskv 0:2f0e1e23c242 3699 fp->err = 0; /* Clear error flag */
glebiuskv 0:2f0e1e23c242 3700 fp->sect = 0; /* Invalidate current data sector */
glebiuskv 0:2f0e1e23c242 3701 fp->fptr = 0; /* Set file pointer top of the file */
glebiuskv 0:2f0e1e23c242 3702 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3703 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3704 #if FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 3705 fp->buf = (BYTE*)ff_memalloc(SS(dj.obj.fs)); /* Allocate buffer if necessary */
glebiuskv 0:2f0e1e23c242 3706 if (!fp->buf)
glebiuskv 0:2f0e1e23c242 3707 return FR_NOT_ENOUGH_CORE;
glebiuskv 0:2f0e1e23c242 3708 #endif
glebiuskv 0:2f0e1e23c242 3709 mem_set(fp->buf, 0, FF_MAX_SS); /* Clear sector buffer */
glebiuskv 0:2f0e1e23c242 3710 #endif
glebiuskv 0:2f0e1e23c242 3711 if ((mode & FA_SEEKEND) && fp->obj.objsize > 0) { /* Seek to end of file if FA_OPEN_APPEND is specified */
glebiuskv 0:2f0e1e23c242 3712 fp->fptr = fp->obj.objsize; /* Offset to seek */
glebiuskv 0:2f0e1e23c242 3713 bcs = (DWORD)fs->csize * SS(fs); /* Cluster size in byte */
glebiuskv 0:2f0e1e23c242 3714 clst = fp->obj.sclust; /* Follow the cluster chain */
glebiuskv 0:2f0e1e23c242 3715 for (ofs = fp->obj.objsize; res == FR_OK && ofs > bcs; ofs -= bcs) {
glebiuskv 0:2f0e1e23c242 3716 clst = get_fat(&fp->obj, clst);
glebiuskv 0:2f0e1e23c242 3717 if (clst <= 1) res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 3718 if (clst == 0xFFFFFFFF) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 3719 }
glebiuskv 0:2f0e1e23c242 3720 fp->clust = clst;
glebiuskv 0:2f0e1e23c242 3721 if (res == FR_OK && ofs % SS(fs)) { /* Fill sector buffer if not on the sector boundary */
glebiuskv 0:2f0e1e23c242 3722 if ((sc = clst2sect(fs, clst)) == 0) {
glebiuskv 0:2f0e1e23c242 3723 res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 3724 } else {
glebiuskv 0:2f0e1e23c242 3725 fp->sect = sc + (DWORD)(ofs / SS(fs));
glebiuskv 0:2f0e1e23c242 3726 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3727 if (disk_read(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 3728 #endif
glebiuskv 0:2f0e1e23c242 3729 }
glebiuskv 0:2f0e1e23c242 3730 }
glebiuskv 0:2f0e1e23c242 3731 }
glebiuskv 0:2f0e1e23c242 3732 #endif
glebiuskv 0:2f0e1e23c242 3733 }
glebiuskv 0:2f0e1e23c242 3734
glebiuskv 0:2f0e1e23c242 3735 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 3736 }
glebiuskv 0:2f0e1e23c242 3737
glebiuskv 0:2f0e1e23c242 3738 if (res != FR_OK) fp->obj.fs = 0; /* Invalidate file object on error */
glebiuskv 0:2f0e1e23c242 3739
glebiuskv 0:2f0e1e23c242 3740 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 3741 }
glebiuskv 0:2f0e1e23c242 3742
glebiuskv 0:2f0e1e23c242 3743
glebiuskv 0:2f0e1e23c242 3744
glebiuskv 0:2f0e1e23c242 3745
glebiuskv 0:2f0e1e23c242 3746 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3747 /* Read File */
glebiuskv 0:2f0e1e23c242 3748 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3749
glebiuskv 0:2f0e1e23c242 3750 FRESULT f_read (
glebiuskv 0:2f0e1e23c242 3751 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 3752 void* buff, /* Pointer to data buffer */
glebiuskv 0:2f0e1e23c242 3753 UINT btr, /* Number of bytes to read */
glebiuskv 0:2f0e1e23c242 3754 UINT* br /* Pointer to number of bytes read */
glebiuskv 0:2f0e1e23c242 3755 )
glebiuskv 0:2f0e1e23c242 3756 {
glebiuskv 0:2f0e1e23c242 3757 FRESULT res;
glebiuskv 0:2f0e1e23c242 3758 FATFS *fs;
glebiuskv 0:2f0e1e23c242 3759 DWORD clst, sect;
glebiuskv 0:2f0e1e23c242 3760 FSIZE_t remain;
glebiuskv 0:2f0e1e23c242 3761 UINT rcnt, cc, csect;
glebiuskv 0:2f0e1e23c242 3762 BYTE *rbuff = (BYTE*)buff;
glebiuskv 0:2f0e1e23c242 3763
glebiuskv 0:2f0e1e23c242 3764
glebiuskv 0:2f0e1e23c242 3765 *br = 0; /* Clear read byte counter */
glebiuskv 0:2f0e1e23c242 3766 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 3767 if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */
glebiuskv 0:2f0e1e23c242 3768 if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
glebiuskv 0:2f0e1e23c242 3769 remain = fp->obj.objsize - fp->fptr;
glebiuskv 0:2f0e1e23c242 3770 if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
glebiuskv 0:2f0e1e23c242 3771
glebiuskv 0:2f0e1e23c242 3772 for ( ; btr; /* Repeat until all data read */
glebiuskv 0:2f0e1e23c242 3773 btr -= rcnt, *br += rcnt, rbuff += rcnt, fp->fptr += rcnt) {
glebiuskv 0:2f0e1e23c242 3774 if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
glebiuskv 0:2f0e1e23c242 3775 csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */
glebiuskv 0:2f0e1e23c242 3776 if (csect == 0) { /* On the cluster boundary? */
glebiuskv 0:2f0e1e23c242 3777 if (fp->fptr == 0) { /* On the top of the file? */
glebiuskv 0:2f0e1e23c242 3778 clst = fp->obj.sclust; /* Follow cluster chain from the origin */
glebiuskv 0:2f0e1e23c242 3779 } else { /* Middle or end of the file */
glebiuskv 0:2f0e1e23c242 3780 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 3781 if (fp->cltbl) {
glebiuskv 0:2f0e1e23c242 3782 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
glebiuskv 0:2f0e1e23c242 3783 } else
glebiuskv 0:2f0e1e23c242 3784 #endif
glebiuskv 0:2f0e1e23c242 3785 {
glebiuskv 0:2f0e1e23c242 3786 clst = get_fat(&fp->obj, fp->clust); /* Follow cluster chain on the FAT */
glebiuskv 0:2f0e1e23c242 3787 }
glebiuskv 0:2f0e1e23c242 3788 }
glebiuskv 0:2f0e1e23c242 3789 if (clst < 2) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 3790 if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3791 fp->clust = clst; /* Update current cluster */
glebiuskv 0:2f0e1e23c242 3792 }
glebiuskv 0:2f0e1e23c242 3793 sect = clst2sect(fs, fp->clust); /* Get current sector */
glebiuskv 0:2f0e1e23c242 3794 if (sect == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 3795 sect += csect;
glebiuskv 0:2f0e1e23c242 3796 cc = btr / SS(fs); /* When remaining bytes >= sector size, */
glebiuskv 0:2f0e1e23c242 3797 if (cc > 0) { /* Read maximum contiguous sectors directly */
glebiuskv 0:2f0e1e23c242 3798 if (csect + cc > fs->csize) { /* Clip at cluster boundary */
glebiuskv 0:2f0e1e23c242 3799 cc = fs->csize - csect;
glebiuskv 0:2f0e1e23c242 3800 }
glebiuskv 0:2f0e1e23c242 3801 if (disk_read(fs->pdrv, rbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3802 #if !FF_FS_READONLY && FF_FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
glebiuskv 0:2f0e1e23c242 3803 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3804 if (fs->wflag && fs->winsect - sect < cc) {
glebiuskv 0:2f0e1e23c242 3805 mem_cpy(rbuff + ((fs->winsect - sect) * SS(fs)), fs->win, SS(fs));
glebiuskv 0:2f0e1e23c242 3806 }
glebiuskv 0:2f0e1e23c242 3807 #else
glebiuskv 0:2f0e1e23c242 3808 if ((fp->flag & FA_DIRTY) && fp->sect - sect < cc) {
glebiuskv 0:2f0e1e23c242 3809 mem_cpy(rbuff + ((fp->sect - sect) * SS(fs)), fp->buf, SS(fs));
glebiuskv 0:2f0e1e23c242 3810 }
glebiuskv 0:2f0e1e23c242 3811 #endif
glebiuskv 0:2f0e1e23c242 3812 #endif
glebiuskv 0:2f0e1e23c242 3813 rcnt = SS(fs) * cc; /* Number of bytes transferred */
glebiuskv 0:2f0e1e23c242 3814 continue;
glebiuskv 0:2f0e1e23c242 3815 }
glebiuskv 0:2f0e1e23c242 3816 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3817 if (fp->sect != sect) { /* Load data sector if not in cache */
glebiuskv 0:2f0e1e23c242 3818 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3819 if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */
glebiuskv 0:2f0e1e23c242 3820 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3821 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 3822 }
glebiuskv 0:2f0e1e23c242 3823 #endif
glebiuskv 0:2f0e1e23c242 3824 if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */
glebiuskv 0:2f0e1e23c242 3825 }
glebiuskv 0:2f0e1e23c242 3826 #endif
glebiuskv 0:2f0e1e23c242 3827 fp->sect = sect;
glebiuskv 0:2f0e1e23c242 3828 }
glebiuskv 0:2f0e1e23c242 3829 rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
glebiuskv 0:2f0e1e23c242 3830 if (rcnt > btr) rcnt = btr; /* Clip it by btr if needed */
glebiuskv 0:2f0e1e23c242 3831 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3832 if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */
glebiuskv 0:2f0e1e23c242 3833 mem_cpy(rbuff, fs->win + fp->fptr % SS(fs), rcnt); /* Extract partial sector */
glebiuskv 0:2f0e1e23c242 3834 #else
glebiuskv 0:2f0e1e23c242 3835 mem_cpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */
glebiuskv 0:2f0e1e23c242 3836 #endif
glebiuskv 0:2f0e1e23c242 3837 }
glebiuskv 0:2f0e1e23c242 3838
glebiuskv 0:2f0e1e23c242 3839 LEAVE_FF(fs, FR_OK);
glebiuskv 0:2f0e1e23c242 3840 }
glebiuskv 0:2f0e1e23c242 3841
glebiuskv 0:2f0e1e23c242 3842
glebiuskv 0:2f0e1e23c242 3843
glebiuskv 0:2f0e1e23c242 3844
glebiuskv 0:2f0e1e23c242 3845 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 3846 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3847 /* Write File */
glebiuskv 0:2f0e1e23c242 3848 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3849
glebiuskv 0:2f0e1e23c242 3850 FRESULT f_write (
glebiuskv 0:2f0e1e23c242 3851 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 3852 const void* buff, /* Pointer to the data to be written */
glebiuskv 0:2f0e1e23c242 3853 UINT btw, /* Number of bytes to write */
glebiuskv 0:2f0e1e23c242 3854 UINT* bw /* Pointer to number of bytes written */
glebiuskv 0:2f0e1e23c242 3855 )
glebiuskv 0:2f0e1e23c242 3856 {
glebiuskv 0:2f0e1e23c242 3857 FRESULT res;
glebiuskv 0:2f0e1e23c242 3858 FATFS *fs;
glebiuskv 0:2f0e1e23c242 3859 DWORD clst, sect;
glebiuskv 0:2f0e1e23c242 3860 UINT wcnt, cc, csect;
glebiuskv 0:2f0e1e23c242 3861 const BYTE *wbuff = (const BYTE*)buff;
glebiuskv 0:2f0e1e23c242 3862 bool need_sync = false;
glebiuskv 0:2f0e1e23c242 3863
glebiuskv 0:2f0e1e23c242 3864 *bw = 0; /* Clear write byte counter */
glebiuskv 0:2f0e1e23c242 3865 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 3866 if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res); /* Check validity */
glebiuskv 0:2f0e1e23c242 3867 if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
glebiuskv 0:2f0e1e23c242 3868
glebiuskv 0:2f0e1e23c242 3869 /* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */
glebiuskv 0:2f0e1e23c242 3870 if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {
glebiuskv 0:2f0e1e23c242 3871 btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);
glebiuskv 0:2f0e1e23c242 3872 }
glebiuskv 0:2f0e1e23c242 3873
glebiuskv 0:2f0e1e23c242 3874 for ( ; btw; /* Repeat until all data written */
glebiuskv 0:2f0e1e23c242 3875 btw -= wcnt, *bw += wcnt, wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize) {
glebiuskv 0:2f0e1e23c242 3876 if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
glebiuskv 0:2f0e1e23c242 3877 csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */
glebiuskv 0:2f0e1e23c242 3878 if (csect == 0) { /* On the cluster boundary? */
glebiuskv 0:2f0e1e23c242 3879 if (fp->fptr == 0) { /* On the top of the file? */
glebiuskv 0:2f0e1e23c242 3880 clst = fp->obj.sclust; /* Follow from the origin */
glebiuskv 0:2f0e1e23c242 3881 if (clst == 0) { /* If no cluster is allocated, */
glebiuskv 0:2f0e1e23c242 3882 clst = create_chain(&fp->obj, 0); /* create a new cluster chain */
glebiuskv 0:2f0e1e23c242 3883 }
glebiuskv 0:2f0e1e23c242 3884 } else { /* On the middle or end of the file */
glebiuskv 0:2f0e1e23c242 3885 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 3886 if (fp->cltbl) {
glebiuskv 0:2f0e1e23c242 3887 clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
glebiuskv 0:2f0e1e23c242 3888 } else
glebiuskv 0:2f0e1e23c242 3889 #endif
glebiuskv 0:2f0e1e23c242 3890 {
glebiuskv 0:2f0e1e23c242 3891 clst = create_chain(&fp->obj, fp->clust); /* Follow or stretch cluster chain on the FAT */
glebiuskv 0:2f0e1e23c242 3892 }
glebiuskv 0:2f0e1e23c242 3893 }
glebiuskv 0:2f0e1e23c242 3894 if (clst == 0) break; /* Could not allocate a new cluster (disk full) */
glebiuskv 0:2f0e1e23c242 3895 if (clst == 1) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 3896 if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3897 fp->clust = clst; /* Update current cluster */
glebiuskv 0:2f0e1e23c242 3898 if (fp->obj.sclust == 0) fp->obj.sclust = clst; /* Set start cluster if the first write */
glebiuskv 0:2f0e1e23c242 3899 #if FLUSH_ON_NEW_CLUSTER
glebiuskv 0:2f0e1e23c242 3900 // We do not need to flush for the first cluster
glebiuskv 0:2f0e1e23c242 3901 if (fp->fptr != 0) {
glebiuskv 0:2f0e1e23c242 3902 need_sync = true;
glebiuskv 0:2f0e1e23c242 3903 }
glebiuskv 0:2f0e1e23c242 3904 #endif
glebiuskv 0:2f0e1e23c242 3905 }
glebiuskv 0:2f0e1e23c242 3906 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3907 if (fs->winsect == fp->sect && sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Write-back sector cache */
glebiuskv 0:2f0e1e23c242 3908 #else
glebiuskv 0:2f0e1e23c242 3909 if (fp->flag & FA_DIRTY) { /* Write-back sector cache */
glebiuskv 0:2f0e1e23c242 3910 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3911 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 3912 }
glebiuskv 0:2f0e1e23c242 3913 #endif
glebiuskv 0:2f0e1e23c242 3914 sect = clst2sect(fs, fp->clust); /* Get current sector */
glebiuskv 0:2f0e1e23c242 3915 if (sect == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 3916 sect += csect;
glebiuskv 0:2f0e1e23c242 3917 cc = btw / SS(fs); /* When remaining bytes >= sector size, */
glebiuskv 0:2f0e1e23c242 3918 if (cc > 0) { /* Write maximum contiguous sectors directly */
glebiuskv 0:2f0e1e23c242 3919 if (csect + cc > fs->csize) { /* Clip at cluster boundary */
glebiuskv 0:2f0e1e23c242 3920 cc = fs->csize - csect;
glebiuskv 0:2f0e1e23c242 3921 }
glebiuskv 0:2f0e1e23c242 3922 if (disk_write(fs->pdrv, wbuff, sect, cc) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3923 #if FF_FS_MINIMIZE <= 2
glebiuskv 0:2f0e1e23c242 3924 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3925 if (fs->winsect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
glebiuskv 0:2f0e1e23c242 3926 mem_cpy(fs->win, wbuff + ((fs->winsect - sect) * SS(fs)), SS(fs));
glebiuskv 0:2f0e1e23c242 3927 fs->wflag = 0;
glebiuskv 0:2f0e1e23c242 3928 }
glebiuskv 0:2f0e1e23c242 3929 #else
glebiuskv 0:2f0e1e23c242 3930 if (fp->sect - sect < cc) { /* Refill sector cache if it gets invalidated by the direct write */
glebiuskv 0:2f0e1e23c242 3931 mem_cpy(fp->buf, wbuff + ((fp->sect - sect) * SS(fs)), SS(fs));
glebiuskv 0:2f0e1e23c242 3932 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 3933 }
glebiuskv 0:2f0e1e23c242 3934 #endif
glebiuskv 0:2f0e1e23c242 3935 #endif
glebiuskv 0:2f0e1e23c242 3936 wcnt = SS(fs) * cc; /* Number of bytes transferred */
glebiuskv 0:2f0e1e23c242 3937 #if FLUSH_ON_NEW_SECTOR
glebiuskv 0:2f0e1e23c242 3938 need_sync = true;
glebiuskv 0:2f0e1e23c242 3939 #endif
glebiuskv 0:2f0e1e23c242 3940 continue;
glebiuskv 0:2f0e1e23c242 3941 }
glebiuskv 0:2f0e1e23c242 3942 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3943 if (fp->fptr >= fp->obj.objsize) { /* Avoid silly cache filling on the growing edge */
glebiuskv 0:2f0e1e23c242 3944 if (sync_window(fs) != FR_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3945 fs->winsect = sect;
glebiuskv 0:2f0e1e23c242 3946 }
glebiuskv 0:2f0e1e23c242 3947 #else
glebiuskv 0:2f0e1e23c242 3948 if (fp->sect != sect && /* Fill sector cache with file data */
glebiuskv 0:2f0e1e23c242 3949 fp->fptr < fp->obj.objsize &&
glebiuskv 0:2f0e1e23c242 3950 disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) {
glebiuskv 0:2f0e1e23c242 3951 ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 3952 }
glebiuskv 0:2f0e1e23c242 3953 #endif
glebiuskv 0:2f0e1e23c242 3954 fp->sect = sect;
glebiuskv 0:2f0e1e23c242 3955 }
glebiuskv 0:2f0e1e23c242 3956 wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
glebiuskv 0:2f0e1e23c242 3957 if (wcnt > btw) wcnt = btw; /* Clip it by btw if needed */
glebiuskv 0:2f0e1e23c242 3958 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3959 if (move_window(fs, fp->sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window */
glebiuskv 0:2f0e1e23c242 3960 mem_cpy(fs->win + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */
glebiuskv 0:2f0e1e23c242 3961 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 3962 #else
glebiuskv 0:2f0e1e23c242 3963 mem_cpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */
glebiuskv 0:2f0e1e23c242 3964 fp->flag |= FA_DIRTY;
glebiuskv 0:2f0e1e23c242 3965 #endif
glebiuskv 0:2f0e1e23c242 3966 }
glebiuskv 0:2f0e1e23c242 3967
glebiuskv 0:2f0e1e23c242 3968 fp->flag |= FA_MODIFIED; /* Set file change flag */
glebiuskv 0:2f0e1e23c242 3969
glebiuskv 0:2f0e1e23c242 3970 if (need_sync) {
glebiuskv 0:2f0e1e23c242 3971 f_sync (fp);
glebiuskv 0:2f0e1e23c242 3972 }
glebiuskv 0:2f0e1e23c242 3973
glebiuskv 0:2f0e1e23c242 3974 LEAVE_FF(fs, FR_OK);
glebiuskv 0:2f0e1e23c242 3975 }
glebiuskv 0:2f0e1e23c242 3976
glebiuskv 0:2f0e1e23c242 3977
glebiuskv 0:2f0e1e23c242 3978
glebiuskv 0:2f0e1e23c242 3979
glebiuskv 0:2f0e1e23c242 3980 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3981 /* Synchronize the File */
glebiuskv 0:2f0e1e23c242 3982 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 3983
glebiuskv 0:2f0e1e23c242 3984 FRESULT f_sync (
glebiuskv 0:2f0e1e23c242 3985 FIL* fp /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 3986 )
glebiuskv 0:2f0e1e23c242 3987 {
glebiuskv 0:2f0e1e23c242 3988 FRESULT res;
glebiuskv 0:2f0e1e23c242 3989 FATFS *fs;
glebiuskv 0:2f0e1e23c242 3990 DWORD tm;
glebiuskv 0:2f0e1e23c242 3991 BYTE *dir;
glebiuskv 0:2f0e1e23c242 3992
glebiuskv 0:2f0e1e23c242 3993
glebiuskv 0:2f0e1e23c242 3994 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 3995 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 3996 if (fp->flag & FA_MODIFIED) { /* Is there any change to the file? */
glebiuskv 0:2f0e1e23c242 3997 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 3998 if (fp->flag & FA_DIRTY) { /* Write-back cached data if needed */
glebiuskv 0:2f0e1e23c242 3999 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) LEAVE_FF(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4000 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 4001 }
glebiuskv 0:2f0e1e23c242 4002 #endif
glebiuskv 0:2f0e1e23c242 4003 /* Update the directory entry */
glebiuskv 0:2f0e1e23c242 4004 tm = GET_FATTIME(); /* Modified time */
glebiuskv 0:2f0e1e23c242 4005 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4006 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4007 res = fill_first_frag(&fp->obj); /* Fill first fragment on the FAT if needed */
glebiuskv 0:2f0e1e23c242 4008 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4009 res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */
glebiuskv 0:2f0e1e23c242 4010 }
glebiuskv 0:2f0e1e23c242 4011 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4012 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 4013 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4014
glebiuskv 0:2f0e1e23c242 4015 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4016 res = load_obj_xdir(&dj, &fp->obj); /* Load directory entry block */
glebiuskv 0:2f0e1e23c242 4017 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4018 fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */
glebiuskv 0:2f0e1e23c242 4019 fs->dirbuf[XDIR_GenFlags] = fp->obj.stat | 1; /* Update file allocation information */
glebiuskv 0:2f0e1e23c242 4020 st_dword(fs->dirbuf + XDIR_FstClus, fp->obj.sclust);
glebiuskv 0:2f0e1e23c242 4021 st_qword(fs->dirbuf + XDIR_FileSize, fp->obj.objsize);
glebiuskv 0:2f0e1e23c242 4022 st_qword(fs->dirbuf + XDIR_ValidFileSize, fp->obj.objsize);
glebiuskv 0:2f0e1e23c242 4023 st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Update modified time */
glebiuskv 0:2f0e1e23c242 4024 fs->dirbuf[XDIR_ModTime10] = 0;
glebiuskv 0:2f0e1e23c242 4025 st_dword(fs->dirbuf + XDIR_AccTime, 0);
glebiuskv 0:2f0e1e23c242 4026 res = store_xdir(&dj); /* Restore it to the directory */
glebiuskv 0:2f0e1e23c242 4027 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4028 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 4029 fp->flag &= (BYTE)~FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 4030 }
glebiuskv 0:2f0e1e23c242 4031 }
glebiuskv 0:2f0e1e23c242 4032 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4033 }
glebiuskv 0:2f0e1e23c242 4034 } else
glebiuskv 0:2f0e1e23c242 4035 #endif
glebiuskv 0:2f0e1e23c242 4036 {
glebiuskv 0:2f0e1e23c242 4037 res = move_window(fs, fp->dir_sect);
glebiuskv 0:2f0e1e23c242 4038 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4039 dir = fp->dir_ptr;
glebiuskv 0:2f0e1e23c242 4040 dir[DIR_Attr] |= AM_ARC; /* Set archive attribute to indicate that the file has been changed */
glebiuskv 0:2f0e1e23c242 4041 st_clust(fp->obj.fs, dir, fp->obj.sclust); /* Update file allocation information */
glebiuskv 0:2f0e1e23c242 4042 st_dword(dir + DIR_FileSize, (DWORD)fp->obj.objsize); /* Update file size */
glebiuskv 0:2f0e1e23c242 4043 st_dword(dir + DIR_ModTime, tm); /* Update modified time */
glebiuskv 0:2f0e1e23c242 4044 st_word(dir + DIR_LstAccDate, 0);
glebiuskv 0:2f0e1e23c242 4045 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 4046 res = sync_fs(fs); /* Restore it to the directory */
glebiuskv 0:2f0e1e23c242 4047 fp->flag &= (BYTE)~FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 4048 }
glebiuskv 0:2f0e1e23c242 4049 }
glebiuskv 0:2f0e1e23c242 4050 }
glebiuskv 0:2f0e1e23c242 4051 }
glebiuskv 0:2f0e1e23c242 4052
glebiuskv 0:2f0e1e23c242 4053 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4054 }
glebiuskv 0:2f0e1e23c242 4055
glebiuskv 0:2f0e1e23c242 4056 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 4057
glebiuskv 0:2f0e1e23c242 4058
glebiuskv 0:2f0e1e23c242 4059
glebiuskv 0:2f0e1e23c242 4060
glebiuskv 0:2f0e1e23c242 4061 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4062 /* Close File */
glebiuskv 0:2f0e1e23c242 4063 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4064
glebiuskv 0:2f0e1e23c242 4065 FRESULT f_close (
glebiuskv 0:2f0e1e23c242 4066 FIL* fp /* Pointer to the file object to be closed */
glebiuskv 0:2f0e1e23c242 4067 )
glebiuskv 0:2f0e1e23c242 4068 {
glebiuskv 0:2f0e1e23c242 4069 FRESULT res;
glebiuskv 0:2f0e1e23c242 4070 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4071
glebiuskv 0:2f0e1e23c242 4072 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4073 res = f_sync(fp); /* Flush cached data */
glebiuskv 0:2f0e1e23c242 4074 if (res == FR_OK)
glebiuskv 0:2f0e1e23c242 4075 #endif
glebiuskv 0:2f0e1e23c242 4076 {
glebiuskv 0:2f0e1e23c242 4077 res = validate(&fp->obj, &fs); /* Lock volume */
glebiuskv 0:2f0e1e23c242 4078 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4079 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 4080 res = dec_lock(fp->obj.lockid); /* Decrement file open counter */
glebiuskv 0:2f0e1e23c242 4081 if (res == FR_OK) fp->obj.fs = 0; /* Invalidate file object */
glebiuskv 0:2f0e1e23c242 4082 #else
glebiuskv 0:2f0e1e23c242 4083 fp->obj.fs = 0; /* Invalidate file object */
glebiuskv 0:2f0e1e23c242 4084 #endif
glebiuskv 0:2f0e1e23c242 4085 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 4086 unlock_fs(fs, FR_OK); /* Unlock volume */
glebiuskv 0:2f0e1e23c242 4087 #endif
glebiuskv 0:2f0e1e23c242 4088 #if !FF_FS_TINY && FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 4089 ff_memfree(fp->buf); /* Deallocate buffer */
glebiuskv 0:2f0e1e23c242 4090 #endif
glebiuskv 0:2f0e1e23c242 4091 }
glebiuskv 0:2f0e1e23c242 4092 }
glebiuskv 0:2f0e1e23c242 4093 return res;
glebiuskv 0:2f0e1e23c242 4094 }
glebiuskv 0:2f0e1e23c242 4095
glebiuskv 0:2f0e1e23c242 4096
glebiuskv 0:2f0e1e23c242 4097
glebiuskv 0:2f0e1e23c242 4098
glebiuskv 0:2f0e1e23c242 4099 #if FF_FS_RPATH >= 1
glebiuskv 0:2f0e1e23c242 4100 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4101 /* Change Current Directory or Current Drive, Get Current Directory */
glebiuskv 0:2f0e1e23c242 4102 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4103
glebiuskv 0:2f0e1e23c242 4104 #if FF_VOLUMES >= 2
glebiuskv 0:2f0e1e23c242 4105 FRESULT f_chdrive (
glebiuskv 0:2f0e1e23c242 4106 const TCHAR* path /* Drive number */
glebiuskv 0:2f0e1e23c242 4107 )
glebiuskv 0:2f0e1e23c242 4108 {
glebiuskv 0:2f0e1e23c242 4109 int vol;
glebiuskv 0:2f0e1e23c242 4110
glebiuskv 0:2f0e1e23c242 4111
glebiuskv 0:2f0e1e23c242 4112 /* Get logical drive number */
glebiuskv 0:2f0e1e23c242 4113 vol = get_ldnumber(&path);
glebiuskv 0:2f0e1e23c242 4114 if (vol < 0) return FR_INVALID_DRIVE;
glebiuskv 0:2f0e1e23c242 4115
glebiuskv 0:2f0e1e23c242 4116 CurrVol = (BYTE)vol; /* Set it as current volume */
glebiuskv 0:2f0e1e23c242 4117
glebiuskv 0:2f0e1e23c242 4118 return FR_OK;
glebiuskv 0:2f0e1e23c242 4119 }
glebiuskv 0:2f0e1e23c242 4120 #endif
glebiuskv 0:2f0e1e23c242 4121
glebiuskv 0:2f0e1e23c242 4122
glebiuskv 0:2f0e1e23c242 4123 FRESULT f_chdir (
glebiuskv 0:2f0e1e23c242 4124 const TCHAR* path /* Pointer to the directory path */
glebiuskv 0:2f0e1e23c242 4125 )
glebiuskv 0:2f0e1e23c242 4126 {
glebiuskv 0:2f0e1e23c242 4127 FRESULT res;
glebiuskv 0:2f0e1e23c242 4128 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 4129 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4130 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4131
glebiuskv 0:2f0e1e23c242 4132 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4133 res = find_volume(&path, &fs, 0);
glebiuskv 0:2f0e1e23c242 4134 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4135 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4136 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4137 res = follow_path(&dj, path); /* Follow the path */
glebiuskv 0:2f0e1e23c242 4138 if (res == FR_OK) { /* Follow completed */
glebiuskv 0:2f0e1e23c242 4139 if (dj.fn[NSFLAG] & NS_NONAME) {
glebiuskv 0:2f0e1e23c242 4140 fs->cdir = dj.obj.sclust; /* It is the start directory itself */
glebiuskv 0:2f0e1e23c242 4141 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4142 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4143 fs->cdc_scl = dj.obj.c_scl;
glebiuskv 0:2f0e1e23c242 4144 fs->cdc_size = dj.obj.c_size;
glebiuskv 0:2f0e1e23c242 4145 fs->cdc_ofs = dj.obj.c_ofs;
glebiuskv 0:2f0e1e23c242 4146 }
glebiuskv 0:2f0e1e23c242 4147 #endif
glebiuskv 0:2f0e1e23c242 4148 } else {
glebiuskv 0:2f0e1e23c242 4149 if (dj.obj.attr & AM_DIR) { /* It is a sub-directory */
glebiuskv 0:2f0e1e23c242 4150 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4151 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4152 fs->cdir = ld_dword(fs->dirbuf + XDIR_FstClus); /* Sub-directory cluster */
glebiuskv 0:2f0e1e23c242 4153 fs->cdc_scl = dj.obj.sclust; /* Save containing directory information */
glebiuskv 0:2f0e1e23c242 4154 fs->cdc_size = ((DWORD)dj.obj.objsize & 0xFFFFFF00) | dj.obj.stat;
glebiuskv 0:2f0e1e23c242 4155 fs->cdc_ofs = dj.blk_ofs;
glebiuskv 0:2f0e1e23c242 4156 } else
glebiuskv 0:2f0e1e23c242 4157 #endif
glebiuskv 0:2f0e1e23c242 4158 {
glebiuskv 0:2f0e1e23c242 4159 fs->cdir = ld_clust(fs, dj.dir); /* Sub-directory cluster */
glebiuskv 0:2f0e1e23c242 4160 }
glebiuskv 0:2f0e1e23c242 4161 } else {
glebiuskv 0:2f0e1e23c242 4162 res = FR_NO_PATH; /* Reached but a file */
glebiuskv 0:2f0e1e23c242 4163 }
glebiuskv 0:2f0e1e23c242 4164 }
glebiuskv 0:2f0e1e23c242 4165 }
glebiuskv 0:2f0e1e23c242 4166 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4167 if (res == FR_NO_FILE) res = FR_NO_PATH;
glebiuskv 0:2f0e1e23c242 4168 }
glebiuskv 0:2f0e1e23c242 4169
glebiuskv 0:2f0e1e23c242 4170 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4171 }
glebiuskv 0:2f0e1e23c242 4172
glebiuskv 0:2f0e1e23c242 4173
glebiuskv 0:2f0e1e23c242 4174 #if FF_FS_RPATH >= 2
glebiuskv 0:2f0e1e23c242 4175 FRESULT f_getcwd (
glebiuskv 0:2f0e1e23c242 4176 TCHAR* buff, /* Pointer to the directory path */
glebiuskv 0:2f0e1e23c242 4177 UINT len /* Size of path */
glebiuskv 0:2f0e1e23c242 4178 )
glebiuskv 0:2f0e1e23c242 4179 {
glebiuskv 0:2f0e1e23c242 4180 FRESULT res;
glebiuskv 0:2f0e1e23c242 4181 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 4182 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4183 UINT i, n;
glebiuskv 0:2f0e1e23c242 4184 DWORD ccl;
glebiuskv 0:2f0e1e23c242 4185 TCHAR *tp;
glebiuskv 0:2f0e1e23c242 4186 FILINFO fno;
glebiuskv 0:2f0e1e23c242 4187 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4188
glebiuskv 0:2f0e1e23c242 4189
glebiuskv 0:2f0e1e23c242 4190 *buff = 0;
glebiuskv 0:2f0e1e23c242 4191 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4192 res = find_volume((const TCHAR**)&buff, &fs, 0); /* Get current volume */
glebiuskv 0:2f0e1e23c242 4193 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4194 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4195 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4196 i = len; /* Bottom of buffer (directory stack base) */
glebiuskv 0:2f0e1e23c242 4197 if (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) { /* (Cannot do getcwd on exFAT and returns root path) */
glebiuskv 0:2f0e1e23c242 4198 dj.obj.sclust = fs->cdir; /* Start to follow upper directory from current directory */
glebiuskv 0:2f0e1e23c242 4199 while ((ccl = dj.obj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
glebiuskv 0:2f0e1e23c242 4200 res = dir_sdi(&dj, 1 * SZDIRE); /* Get parent directory */
glebiuskv 0:2f0e1e23c242 4201 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4202 res = move_window(fs, dj.sect);
glebiuskv 0:2f0e1e23c242 4203 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4204 dj.obj.sclust = ld_clust(fs, dj.dir); /* Goto parent directory */
glebiuskv 0:2f0e1e23c242 4205 res = dir_sdi(&dj, 0);
glebiuskv 0:2f0e1e23c242 4206 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4207 do { /* Find the entry links to the child directory */
glebiuskv 0:2f0e1e23c242 4208 res = dir_read_file(&dj);
glebiuskv 0:2f0e1e23c242 4209 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4210 if (ccl == ld_clust(fs, dj.dir)) break; /* Found the entry */
glebiuskv 0:2f0e1e23c242 4211 res = dir_next(&dj, 0);
glebiuskv 0:2f0e1e23c242 4212 } while (res == FR_OK);
glebiuskv 0:2f0e1e23c242 4213 if (res == FR_NO_FILE) res = FR_INT_ERR;/* It cannot be 'not found'. */
glebiuskv 0:2f0e1e23c242 4214 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4215 get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
glebiuskv 0:2f0e1e23c242 4216 for (n = 0; fno.fname[n]; n++) ;
glebiuskv 0:2f0e1e23c242 4217 if (i < n + 3) {
glebiuskv 0:2f0e1e23c242 4218 res = FR_NOT_ENOUGH_CORE; break;
glebiuskv 0:2f0e1e23c242 4219 }
glebiuskv 0:2f0e1e23c242 4220 while (n) buff[--i] = fno.fname[--n];
glebiuskv 0:2f0e1e23c242 4221 buff[--i] = '/';
glebiuskv 0:2f0e1e23c242 4222 }
glebiuskv 0:2f0e1e23c242 4223 }
glebiuskv 0:2f0e1e23c242 4224 tp = buff;
glebiuskv 0:2f0e1e23c242 4225 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4226 #if FF_VOLUMES >= 2
glebiuskv 0:2f0e1e23c242 4227 *tp++ = '0' + CurrVol; /* Put drive number */
glebiuskv 0:2f0e1e23c242 4228 *tp++ = ':';
glebiuskv 0:2f0e1e23c242 4229 #endif
glebiuskv 0:2f0e1e23c242 4230 if (i == len) { /* Root-directory */
glebiuskv 0:2f0e1e23c242 4231 *tp++ = '/';
glebiuskv 0:2f0e1e23c242 4232 } else { /* Sub-directroy */
glebiuskv 0:2f0e1e23c242 4233 do /* Add stacked path str */
glebiuskv 0:2f0e1e23c242 4234 *tp++ = buff[i++];
glebiuskv 0:2f0e1e23c242 4235 while (i < len);
glebiuskv 0:2f0e1e23c242 4236 }
glebiuskv 0:2f0e1e23c242 4237 }
glebiuskv 0:2f0e1e23c242 4238 *tp = 0;
glebiuskv 0:2f0e1e23c242 4239 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4240 }
glebiuskv 0:2f0e1e23c242 4241
glebiuskv 0:2f0e1e23c242 4242 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4243 }
glebiuskv 0:2f0e1e23c242 4244
glebiuskv 0:2f0e1e23c242 4245 #endif /* FF_FS_RPATH >= 2 */
glebiuskv 0:2f0e1e23c242 4246 #endif /* FF_FS_RPATH >= 1 */
glebiuskv 0:2f0e1e23c242 4247
glebiuskv 0:2f0e1e23c242 4248
glebiuskv 0:2f0e1e23c242 4249
glebiuskv 0:2f0e1e23c242 4250 #if FF_FS_MINIMIZE <= 2
glebiuskv 0:2f0e1e23c242 4251 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4252 /* Seek File Read/Write Pointer */
glebiuskv 0:2f0e1e23c242 4253 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4254
glebiuskv 0:2f0e1e23c242 4255 FRESULT f_lseek (
glebiuskv 0:2f0e1e23c242 4256 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 4257 FSIZE_t ofs /* File pointer from top of file */
glebiuskv 0:2f0e1e23c242 4258 )
glebiuskv 0:2f0e1e23c242 4259 {
glebiuskv 0:2f0e1e23c242 4260 FRESULT res;
glebiuskv 0:2f0e1e23c242 4261 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4262 DWORD clst, bcs, nsect;
glebiuskv 0:2f0e1e23c242 4263 FSIZE_t ifptr;
glebiuskv 0:2f0e1e23c242 4264 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 4265 DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
glebiuskv 0:2f0e1e23c242 4266 #endif
glebiuskv 0:2f0e1e23c242 4267
glebiuskv 0:2f0e1e23c242 4268 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 4269 if (res == FR_OK) res = (FRESULT)fp->err;
glebiuskv 0:2f0e1e23c242 4270 #if FF_FS_EXFAT && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4271 if (res == FR_OK && fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4272 res = fill_last_frag(&fp->obj, fp->clust, 0xFFFFFFFF); /* Fill last fragment on the FAT if needed */
glebiuskv 0:2f0e1e23c242 4273 }
glebiuskv 0:2f0e1e23c242 4274 #endif
glebiuskv 0:2f0e1e23c242 4275 if (res != FR_OK) LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4276
glebiuskv 0:2f0e1e23c242 4277 #if FF_USE_FASTSEEK
glebiuskv 0:2f0e1e23c242 4278 if (fp->cltbl) { /* Fast seek */
glebiuskv 0:2f0e1e23c242 4279 if (ofs == CREATE_LINKMAP) { /* Create CLMT */
glebiuskv 0:2f0e1e23c242 4280 tbl = fp->cltbl;
glebiuskv 0:2f0e1e23c242 4281 tlen = *tbl++; ulen = 2; /* Given table size and required table size */
glebiuskv 0:2f0e1e23c242 4282 cl = fp->obj.sclust; /* Origin of the chain */
glebiuskv 0:2f0e1e23c242 4283 if (cl != 0) {
glebiuskv 0:2f0e1e23c242 4284 do {
glebiuskv 0:2f0e1e23c242 4285 /* Get a fragment */
glebiuskv 0:2f0e1e23c242 4286 tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
glebiuskv 0:2f0e1e23c242 4287 do {
glebiuskv 0:2f0e1e23c242 4288 pcl = cl; ncl++;
glebiuskv 0:2f0e1e23c242 4289 cl = get_fat(&fp->obj, cl);
glebiuskv 0:2f0e1e23c242 4290 if (cl <= 1) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 4291 if (cl == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4292 } while (cl == pcl + 1);
glebiuskv 0:2f0e1e23c242 4293 if (ulen <= tlen) { /* Store the length and top of the fragment */
glebiuskv 0:2f0e1e23c242 4294 *tbl++ = ncl; *tbl++ = tcl;
glebiuskv 0:2f0e1e23c242 4295 }
glebiuskv 0:2f0e1e23c242 4296 } while (cl < fs->n_fatent); /* Repeat until end of chain */
glebiuskv 0:2f0e1e23c242 4297 }
glebiuskv 0:2f0e1e23c242 4298 *fp->cltbl = ulen; /* Number of items used */
glebiuskv 0:2f0e1e23c242 4299 if (ulen <= tlen) {
glebiuskv 0:2f0e1e23c242 4300 *tbl = 0; /* Terminate table */
glebiuskv 0:2f0e1e23c242 4301 } else {
glebiuskv 0:2f0e1e23c242 4302 res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
glebiuskv 0:2f0e1e23c242 4303 }
glebiuskv 0:2f0e1e23c242 4304 } else { /* Fast seek */
glebiuskv 0:2f0e1e23c242 4305 if (ofs > fp->obj.objsize) ofs = fp->obj.objsize; /* Clip offset at the file size */
glebiuskv 0:2f0e1e23c242 4306 fp->fptr = ofs; /* Set file pointer */
glebiuskv 0:2f0e1e23c242 4307 if (ofs > 0) {
glebiuskv 0:2f0e1e23c242 4308 fp->clust = clmt_clust(fp, ofs - 1);
glebiuskv 0:2f0e1e23c242 4309 dsc = clst2sect(fs, fp->clust);
glebiuskv 0:2f0e1e23c242 4310 if (dsc == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 4311 dsc += (DWORD)((ofs - 1) / SS(fs)) & (fs->csize - 1);
glebiuskv 0:2f0e1e23c242 4312 if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */
glebiuskv 0:2f0e1e23c242 4313 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 4314 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4315 if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */
glebiuskv 0:2f0e1e23c242 4316 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4317 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 4318 }
glebiuskv 0:2f0e1e23c242 4319 #endif
glebiuskv 0:2f0e1e23c242 4320 if (disk_read(fs->pdrv, fp->buf, dsc, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Load current sector */
glebiuskv 0:2f0e1e23c242 4321 #endif
glebiuskv 0:2f0e1e23c242 4322 fp->sect = dsc;
glebiuskv 0:2f0e1e23c242 4323 }
glebiuskv 0:2f0e1e23c242 4324 }
glebiuskv 0:2f0e1e23c242 4325 }
glebiuskv 0:2f0e1e23c242 4326 } else
glebiuskv 0:2f0e1e23c242 4327 #endif
glebiuskv 0:2f0e1e23c242 4328
glebiuskv 0:2f0e1e23c242 4329 /* Normal Seek */
glebiuskv 0:2f0e1e23c242 4330 {
glebiuskv 0:2f0e1e23c242 4331 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4332 if (fs->fs_type != FS_EXFAT && ofs >= 0x100000000) ofs = 0xFFFFFFFF; /* Clip at 4 GiB - 1 if at FATxx */
glebiuskv 0:2f0e1e23c242 4333 #endif
glebiuskv 0:2f0e1e23c242 4334 if (ofs > fp->obj.objsize && (FF_FS_READONLY || !(fp->flag & FA_WRITE))) { /* In read-only mode, clip offset with the file size */
glebiuskv 0:2f0e1e23c242 4335 ofs = fp->obj.objsize;
glebiuskv 0:2f0e1e23c242 4336 }
glebiuskv 0:2f0e1e23c242 4337 ifptr = fp->fptr;
glebiuskv 0:2f0e1e23c242 4338 fp->fptr = nsect = 0;
glebiuskv 0:2f0e1e23c242 4339 if (ofs > 0) {
glebiuskv 0:2f0e1e23c242 4340 bcs = (DWORD)fs->csize * SS(fs); /* Cluster size (byte) */
glebiuskv 0:2f0e1e23c242 4341 if (ifptr > 0 &&
glebiuskv 0:2f0e1e23c242 4342 (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */
glebiuskv 0:2f0e1e23c242 4343 fp->fptr = (ifptr - 1) & ~(FSIZE_t)(bcs - 1); /* start from the current cluster */
glebiuskv 0:2f0e1e23c242 4344 ofs -= fp->fptr;
glebiuskv 0:2f0e1e23c242 4345 clst = fp->clust;
glebiuskv 0:2f0e1e23c242 4346 } else { /* When seek to back cluster, */
glebiuskv 0:2f0e1e23c242 4347 clst = fp->obj.sclust; /* start from the first cluster */
glebiuskv 0:2f0e1e23c242 4348 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4349 if (clst == 0) { /* If no cluster chain, create a new chain */
glebiuskv 0:2f0e1e23c242 4350 clst = create_chain(&fp->obj, 0);
glebiuskv 0:2f0e1e23c242 4351 if (clst == 1) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 4352 if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4353 fp->obj.sclust = clst;
glebiuskv 0:2f0e1e23c242 4354 }
glebiuskv 0:2f0e1e23c242 4355 #endif
glebiuskv 0:2f0e1e23c242 4356 fp->clust = clst;
glebiuskv 0:2f0e1e23c242 4357 }
glebiuskv 0:2f0e1e23c242 4358 if (clst != 0) {
glebiuskv 0:2f0e1e23c242 4359 while (ofs > bcs) { /* Cluster following loop */
glebiuskv 0:2f0e1e23c242 4360 ofs -= bcs; fp->fptr += bcs;
glebiuskv 0:2f0e1e23c242 4361 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4362 if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
glebiuskv 0:2f0e1e23c242 4363 if (FF_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */
glebiuskv 0:2f0e1e23c242 4364 fp->obj.objsize = fp->fptr;
glebiuskv 0:2f0e1e23c242 4365 fp->flag |= FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 4366 }
glebiuskv 0:2f0e1e23c242 4367 clst = create_chain(&fp->obj, clst); /* Follow chain with forceed stretch */
glebiuskv 0:2f0e1e23c242 4368 if (clst == 0) { /* Clip file size in case of disk full */
glebiuskv 0:2f0e1e23c242 4369 ofs = 0; break;
glebiuskv 0:2f0e1e23c242 4370 }
glebiuskv 0:2f0e1e23c242 4371 } else
glebiuskv 0:2f0e1e23c242 4372 #endif
glebiuskv 0:2f0e1e23c242 4373 {
glebiuskv 0:2f0e1e23c242 4374 clst = get_fat(&fp->obj, clst); /* Follow cluster chain if not in write mode */
glebiuskv 0:2f0e1e23c242 4375 }
glebiuskv 0:2f0e1e23c242 4376 if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4377 if (clst <= 1 || clst >= fs->n_fatent) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 4378 fp->clust = clst;
glebiuskv 0:2f0e1e23c242 4379 }
glebiuskv 0:2f0e1e23c242 4380 fp->fptr += ofs;
glebiuskv 0:2f0e1e23c242 4381 if (ofs % SS(fs)) {
glebiuskv 0:2f0e1e23c242 4382 nsect = clst2sect(fs, clst); /* Current sector */
glebiuskv 0:2f0e1e23c242 4383 if (nsect == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 4384 nsect += (DWORD)(ofs / SS(fs));
glebiuskv 0:2f0e1e23c242 4385 }
glebiuskv 0:2f0e1e23c242 4386 }
glebiuskv 0:2f0e1e23c242 4387 }
glebiuskv 0:2f0e1e23c242 4388 if (!FF_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */
glebiuskv 0:2f0e1e23c242 4389 fp->obj.objsize = fp->fptr;
glebiuskv 0:2f0e1e23c242 4390 fp->flag |= FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 4391 }
glebiuskv 0:2f0e1e23c242 4392 if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */
glebiuskv 0:2f0e1e23c242 4393 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 4394 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4395 if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */
glebiuskv 0:2f0e1e23c242 4396 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 4397 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 4398 }
glebiuskv 0:2f0e1e23c242 4399 #endif
glebiuskv 0:2f0e1e23c242 4400 if (disk_read(fs->pdrv, fp->buf, nsect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR); /* Fill sector cache */
glebiuskv 0:2f0e1e23c242 4401 #endif
glebiuskv 0:2f0e1e23c242 4402 fp->sect = nsect;
glebiuskv 0:2f0e1e23c242 4403 }
glebiuskv 0:2f0e1e23c242 4404 }
glebiuskv 0:2f0e1e23c242 4405
glebiuskv 0:2f0e1e23c242 4406 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4407 }
glebiuskv 0:2f0e1e23c242 4408
glebiuskv 0:2f0e1e23c242 4409
glebiuskv 0:2f0e1e23c242 4410
glebiuskv 0:2f0e1e23c242 4411 #if FF_FS_MINIMIZE <= 1
glebiuskv 0:2f0e1e23c242 4412 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4413 /* Create a Directory Object */
glebiuskv 0:2f0e1e23c242 4414 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4415
glebiuskv 0:2f0e1e23c242 4416 FRESULT f_opendir (
glebiuskv 0:2f0e1e23c242 4417 FATFS_DIR* dp, /* Pointer to directory object to create */
glebiuskv 0:2f0e1e23c242 4418 const TCHAR* path /* Pointer to the directory path */
glebiuskv 0:2f0e1e23c242 4419 )
glebiuskv 0:2f0e1e23c242 4420 {
glebiuskv 0:2f0e1e23c242 4421 FRESULT res;
glebiuskv 0:2f0e1e23c242 4422 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4423 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4424
glebiuskv 0:2f0e1e23c242 4425
glebiuskv 0:2f0e1e23c242 4426 if (!dp) return FR_INVALID_OBJECT;
glebiuskv 0:2f0e1e23c242 4427
glebiuskv 0:2f0e1e23c242 4428 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4429 res = find_volume(&path, &fs, 0);
glebiuskv 0:2f0e1e23c242 4430 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4431 dp->obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4432 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4433 res = follow_path(dp, path); /* Follow the path to the directory */
glebiuskv 0:2f0e1e23c242 4434 if (res == FR_OK) { /* Follow completed */
glebiuskv 0:2f0e1e23c242 4435 if (!(dp->fn[NSFLAG] & NS_NONAME)) { /* It is not the origin directory itself */
glebiuskv 0:2f0e1e23c242 4436 if (dp->obj.attr & AM_DIR) { /* This object is a sub-directory */
glebiuskv 0:2f0e1e23c242 4437 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4438 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4439 dp->obj.c_scl = dp->obj.sclust; /* Get containing directory inforamation */
glebiuskv 0:2f0e1e23c242 4440 dp->obj.c_size = ((DWORD)dp->obj.objsize & 0xFFFFFF00) | dp->obj.stat;
glebiuskv 0:2f0e1e23c242 4441 dp->obj.c_ofs = dp->blk_ofs;
glebiuskv 0:2f0e1e23c242 4442 init_alloc_info(fs, &dp->obj); /* Get object allocation info */
glebiuskv 0:2f0e1e23c242 4443 } else
glebiuskv 0:2f0e1e23c242 4444 #endif
glebiuskv 0:2f0e1e23c242 4445 {
glebiuskv 0:2f0e1e23c242 4446 dp->obj.sclust = ld_clust(fs, dp->dir); /* Get object allocation info */
glebiuskv 0:2f0e1e23c242 4447 }
glebiuskv 0:2f0e1e23c242 4448 } else { /* This object is a file */
glebiuskv 0:2f0e1e23c242 4449 res = FR_NO_PATH;
glebiuskv 0:2f0e1e23c242 4450 }
glebiuskv 0:2f0e1e23c242 4451 }
glebiuskv 0:2f0e1e23c242 4452 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4453 dp->obj.id = fs->id;
glebiuskv 0:2f0e1e23c242 4454 res = dir_sdi(dp, 0); /* Rewind directory */
glebiuskv 0:2f0e1e23c242 4455 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 4456 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4457 if (dp->obj.sclust != 0) {
glebiuskv 0:2f0e1e23c242 4458 dp->obj.lockid = inc_lock(dp, 0); /* Lock the sub directory */
glebiuskv 0:2f0e1e23c242 4459 if (!dp->obj.lockid) res = FR_TOO_MANY_OPEN_FILES;
glebiuskv 0:2f0e1e23c242 4460 } else {
glebiuskv 0:2f0e1e23c242 4461 dp->obj.lockid = 0; /* Root directory need not to be locked */
glebiuskv 0:2f0e1e23c242 4462 }
glebiuskv 0:2f0e1e23c242 4463 }
glebiuskv 0:2f0e1e23c242 4464 #endif
glebiuskv 0:2f0e1e23c242 4465 }
glebiuskv 0:2f0e1e23c242 4466 }
glebiuskv 0:2f0e1e23c242 4467 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4468 if (res == FR_NO_FILE) res = FR_NO_PATH;
glebiuskv 0:2f0e1e23c242 4469 }
glebiuskv 0:2f0e1e23c242 4470 if (res != FR_OK) dp->obj.fs = 0; /* Invalidate the directory object if function faild */
glebiuskv 0:2f0e1e23c242 4471
glebiuskv 0:2f0e1e23c242 4472 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4473 }
glebiuskv 0:2f0e1e23c242 4474
glebiuskv 0:2f0e1e23c242 4475
glebiuskv 0:2f0e1e23c242 4476
glebiuskv 0:2f0e1e23c242 4477
glebiuskv 0:2f0e1e23c242 4478 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4479 /* Close Directory */
glebiuskv 0:2f0e1e23c242 4480 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4481
glebiuskv 0:2f0e1e23c242 4482 FRESULT f_closedir (
glebiuskv 0:2f0e1e23c242 4483 FATFS_DIR *dp /* Pointer to the directory object to be closed */
glebiuskv 0:2f0e1e23c242 4484 )
glebiuskv 0:2f0e1e23c242 4485 {
glebiuskv 0:2f0e1e23c242 4486 FRESULT res;
glebiuskv 0:2f0e1e23c242 4487 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4488
glebiuskv 0:2f0e1e23c242 4489
glebiuskv 0:2f0e1e23c242 4490 res = validate(&dp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 4491 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4492 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 4493 if (dp->obj.lockid) res = dec_lock(dp->obj.lockid); /* Decrement sub-directory open counter */
glebiuskv 0:2f0e1e23c242 4494 if (res == FR_OK) dp->obj.fs = 0; /* Invalidate directory object */
glebiuskv 0:2f0e1e23c242 4495 #else
glebiuskv 0:2f0e1e23c242 4496 dp->obj.fs = 0; /* Invalidate directory object */
glebiuskv 0:2f0e1e23c242 4497 #endif
glebiuskv 0:2f0e1e23c242 4498 #if FF_FS_REENTRANT
glebiuskv 0:2f0e1e23c242 4499 unlock_fs(fs, FR_OK); /* Unlock volume */
glebiuskv 0:2f0e1e23c242 4500 #endif
glebiuskv 0:2f0e1e23c242 4501 }
glebiuskv 0:2f0e1e23c242 4502 return res;
glebiuskv 0:2f0e1e23c242 4503 }
glebiuskv 0:2f0e1e23c242 4504
glebiuskv 0:2f0e1e23c242 4505
glebiuskv 0:2f0e1e23c242 4506
glebiuskv 0:2f0e1e23c242 4507
glebiuskv 0:2f0e1e23c242 4508 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4509 /* Read Directory Entries in Sequence */
glebiuskv 0:2f0e1e23c242 4510 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4511
glebiuskv 0:2f0e1e23c242 4512 FRESULT f_readdir (
glebiuskv 0:2f0e1e23c242 4513 FATFS_DIR* dp, /* Pointer to the open directory object */
glebiuskv 0:2f0e1e23c242 4514 FILINFO* fno /* Pointer to file information to return */
glebiuskv 0:2f0e1e23c242 4515 )
glebiuskv 0:2f0e1e23c242 4516 {
glebiuskv 0:2f0e1e23c242 4517 FRESULT res;
glebiuskv 0:2f0e1e23c242 4518 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4519 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4520
glebiuskv 0:2f0e1e23c242 4521
glebiuskv 0:2f0e1e23c242 4522 res = validate(&dp->obj, &fs); /* Check validity of the directory object */
glebiuskv 0:2f0e1e23c242 4523 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4524 if (!fno) {
glebiuskv 0:2f0e1e23c242 4525 res = dir_sdi(dp, 0); /* Rewind the directory object */
glebiuskv 0:2f0e1e23c242 4526 } else {
glebiuskv 0:2f0e1e23c242 4527 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4528 res = dir_read_file(dp); /* Read an item */
glebiuskv 0:2f0e1e23c242 4529 if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory */
glebiuskv 0:2f0e1e23c242 4530 if (res == FR_OK) { /* A valid entry is found */
glebiuskv 0:2f0e1e23c242 4531 get_fileinfo(dp, fno); /* Get the object information */
glebiuskv 0:2f0e1e23c242 4532 res = dir_next(dp, 0); /* Increment index for next */
glebiuskv 0:2f0e1e23c242 4533 if (res == FR_NO_FILE) res = FR_OK; /* Ignore end of directory now */
glebiuskv 0:2f0e1e23c242 4534 }
glebiuskv 0:2f0e1e23c242 4535 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4536 }
glebiuskv 0:2f0e1e23c242 4537 }
glebiuskv 0:2f0e1e23c242 4538 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4539 }
glebiuskv 0:2f0e1e23c242 4540
glebiuskv 0:2f0e1e23c242 4541
glebiuskv 0:2f0e1e23c242 4542
glebiuskv 0:2f0e1e23c242 4543 #if FF_USE_FIND
glebiuskv 0:2f0e1e23c242 4544 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4545 /* Find Next File */
glebiuskv 0:2f0e1e23c242 4546 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4547
glebiuskv 0:2f0e1e23c242 4548 FRESULT f_findnext (
glebiuskv 0:2f0e1e23c242 4549 FATFS_DIR* dp, /* Pointer to the open directory object */
glebiuskv 0:2f0e1e23c242 4550 FILINFO* fno /* Pointer to the file information structure */
glebiuskv 0:2f0e1e23c242 4551 )
glebiuskv 0:2f0e1e23c242 4552 {
glebiuskv 0:2f0e1e23c242 4553 FRESULT res;
glebiuskv 0:2f0e1e23c242 4554
glebiuskv 0:2f0e1e23c242 4555
glebiuskv 0:2f0e1e23c242 4556 for (;;) {
glebiuskv 0:2f0e1e23c242 4557 res = f_readdir(dp, fno); /* Get a directory item */
glebiuskv 0:2f0e1e23c242 4558 if (res != FR_OK || !fno || !fno->fname[0]) break; /* Terminate if any error or end of directory */
glebiuskv 0:2f0e1e23c242 4559 if (pattern_matching(dp->pat, fno->fname, 0, 0)) break; /* Test for the file name */
glebiuskv 0:2f0e1e23c242 4560 #if FF_USE_LFN && FF_USE_FIND == 2
glebiuskv 0:2f0e1e23c242 4561 if (pattern_matching(dp->pat, fno->altname, 0, 0)) break; /* Test for alternative name if exist */
glebiuskv 0:2f0e1e23c242 4562 #endif
glebiuskv 0:2f0e1e23c242 4563 }
glebiuskv 0:2f0e1e23c242 4564 return res;
glebiuskv 0:2f0e1e23c242 4565 }
glebiuskv 0:2f0e1e23c242 4566
glebiuskv 0:2f0e1e23c242 4567
glebiuskv 0:2f0e1e23c242 4568
glebiuskv 0:2f0e1e23c242 4569 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4570 /* Find First File */
glebiuskv 0:2f0e1e23c242 4571 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4572
glebiuskv 0:2f0e1e23c242 4573 FRESULT f_findfirst (
glebiuskv 0:2f0e1e23c242 4574 FATFS_DIR* dp, /* Pointer to the blank directory object */
glebiuskv 0:2f0e1e23c242 4575 FILINFO* fno, /* Pointer to the file information structure */
glebiuskv 0:2f0e1e23c242 4576 const TCHAR* path, /* Pointer to the directory to open */
glebiuskv 0:2f0e1e23c242 4577 const TCHAR* pattern /* Pointer to the matching pattern */
glebiuskv 0:2f0e1e23c242 4578 )
glebiuskv 0:2f0e1e23c242 4579 {
glebiuskv 0:2f0e1e23c242 4580 FRESULT res;
glebiuskv 0:2f0e1e23c242 4581
glebiuskv 0:2f0e1e23c242 4582
glebiuskv 0:2f0e1e23c242 4583 dp->pat = pattern; /* Save pointer to pattern string */
glebiuskv 0:2f0e1e23c242 4584 res = f_opendir(dp, path); /* Open the target directory */
glebiuskv 0:2f0e1e23c242 4585 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4586 res = f_findnext(dp, fno); /* Find the first item */
glebiuskv 0:2f0e1e23c242 4587 }
glebiuskv 0:2f0e1e23c242 4588 return res;
glebiuskv 0:2f0e1e23c242 4589 }
glebiuskv 0:2f0e1e23c242 4590
glebiuskv 0:2f0e1e23c242 4591 #endif /* FF_USE_FIND */
glebiuskv 0:2f0e1e23c242 4592
glebiuskv 0:2f0e1e23c242 4593
glebiuskv 0:2f0e1e23c242 4594
glebiuskv 0:2f0e1e23c242 4595 #if FF_FS_MINIMIZE == 0
glebiuskv 0:2f0e1e23c242 4596 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4597 /* Get File Status */
glebiuskv 0:2f0e1e23c242 4598 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4599
glebiuskv 0:2f0e1e23c242 4600 FRESULT f_stat (
glebiuskv 0:2f0e1e23c242 4601 const TCHAR* path, /* Pointer to the file path */
glebiuskv 0:2f0e1e23c242 4602 FILINFO* fno /* Pointer to file information to return */
glebiuskv 0:2f0e1e23c242 4603 )
glebiuskv 0:2f0e1e23c242 4604 {
glebiuskv 0:2f0e1e23c242 4605 FRESULT res;
glebiuskv 0:2f0e1e23c242 4606 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 4607 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4608
glebiuskv 0:2f0e1e23c242 4609
glebiuskv 0:2f0e1e23c242 4610 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4611 res = find_volume(&path, &dj.obj.fs, 0);
glebiuskv 0:2f0e1e23c242 4612 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4613 INIT_NAMBUF(dj.obj.fs);
glebiuskv 0:2f0e1e23c242 4614 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 4615 if (res == FR_OK) { /* Follow completed */
glebiuskv 0:2f0e1e23c242 4616 if (dj.fn[NSFLAG] & NS_NONAME) { /* It is origin directory */
glebiuskv 0:2f0e1e23c242 4617 res = FR_INVALID_NAME;
glebiuskv 0:2f0e1e23c242 4618 } else { /* Found an object */
glebiuskv 0:2f0e1e23c242 4619 if (fno) get_fileinfo(&dj, fno);
glebiuskv 0:2f0e1e23c242 4620 }
glebiuskv 0:2f0e1e23c242 4621 }
glebiuskv 0:2f0e1e23c242 4622 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4623 }
glebiuskv 0:2f0e1e23c242 4624
glebiuskv 0:2f0e1e23c242 4625 LEAVE_FF(dj.obj.fs, res);
glebiuskv 0:2f0e1e23c242 4626 }
glebiuskv 0:2f0e1e23c242 4627
glebiuskv 0:2f0e1e23c242 4628
glebiuskv 0:2f0e1e23c242 4629
glebiuskv 0:2f0e1e23c242 4630 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 4631 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4632 /* Get Number of Free Clusters */
glebiuskv 0:2f0e1e23c242 4633 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4634
glebiuskv 0:2f0e1e23c242 4635 FRESULT f_getfree (
glebiuskv 0:2f0e1e23c242 4636 const TCHAR* path, /* Logical drive number */
glebiuskv 0:2f0e1e23c242 4637 DWORD* nclst, /* Pointer to a variable to return number of free clusters */
glebiuskv 0:2f0e1e23c242 4638 FATFS** fatfs /* Pointer to return pointer to corresponding filesystem object */
glebiuskv 0:2f0e1e23c242 4639 )
glebiuskv 0:2f0e1e23c242 4640 {
glebiuskv 0:2f0e1e23c242 4641 FRESULT res;
glebiuskv 0:2f0e1e23c242 4642 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4643 DWORD nfree, clst, sect, stat;
glebiuskv 0:2f0e1e23c242 4644 UINT i;
glebiuskv 0:2f0e1e23c242 4645 FFOBJID obj;
glebiuskv 0:2f0e1e23c242 4646
glebiuskv 0:2f0e1e23c242 4647
glebiuskv 0:2f0e1e23c242 4648 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4649 res = find_volume(&path, &fs, 0);
glebiuskv 0:2f0e1e23c242 4650 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4651 *fatfs = fs; /* Return ptr to the fs object */
glebiuskv 0:2f0e1e23c242 4652 /* If free_clst is valid, return it without full FAT scan */
glebiuskv 0:2f0e1e23c242 4653 if (fs->free_clst <= fs->n_fatent - 2) {
glebiuskv 0:2f0e1e23c242 4654 *nclst = fs->free_clst;
glebiuskv 0:2f0e1e23c242 4655 } else {
glebiuskv 0:2f0e1e23c242 4656 /* Scan FAT to obtain number of free clusters */
glebiuskv 0:2f0e1e23c242 4657 nfree = 0;
glebiuskv 0:2f0e1e23c242 4658 if (fs->fs_type == FS_FAT12) { /* FAT12: Scan bit field FAT entries */
glebiuskv 0:2f0e1e23c242 4659 clst = 2; obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4660 do {
glebiuskv 0:2f0e1e23c242 4661 stat = get_fat(&obj, clst);
glebiuskv 0:2f0e1e23c242 4662 if (stat == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
glebiuskv 0:2f0e1e23c242 4663 if (stat == 1) { res = FR_INT_ERR; break; }
glebiuskv 0:2f0e1e23c242 4664 if (stat == 0) nfree++;
glebiuskv 0:2f0e1e23c242 4665 } while (++clst < fs->n_fatent);
glebiuskv 0:2f0e1e23c242 4666 } else {
glebiuskv 0:2f0e1e23c242 4667 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4668 if (fs->fs_type == FS_EXFAT) { /* exFAT: Scan allocation bitmap */
glebiuskv 0:2f0e1e23c242 4669 BYTE bm;
glebiuskv 0:2f0e1e23c242 4670 UINT b;
glebiuskv 0:2f0e1e23c242 4671
glebiuskv 0:2f0e1e23c242 4672 clst = fs->n_fatent - 2; /* Number of clusters */
glebiuskv 0:2f0e1e23c242 4673 sect = fs->database; /* Assuming bitmap starts at cluster 2 */
glebiuskv 0:2f0e1e23c242 4674 i = 0; /* Offset in the sector */
glebiuskv 0:2f0e1e23c242 4675 do { /* Counts numbuer of bits with zero in the bitmap */
glebiuskv 0:2f0e1e23c242 4676 if (i == 0) {
glebiuskv 0:2f0e1e23c242 4677 res = move_window(fs, sect++);
glebiuskv 0:2f0e1e23c242 4678 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4679 }
glebiuskv 0:2f0e1e23c242 4680 for (b = 8, bm = fs->win[i]; b && clst; b--, clst--) {
glebiuskv 0:2f0e1e23c242 4681 if (!(bm & 1)) nfree++;
glebiuskv 0:2f0e1e23c242 4682 bm >>= 1;
glebiuskv 0:2f0e1e23c242 4683 }
glebiuskv 0:2f0e1e23c242 4684 i = (i + 1) % SS(fs);
glebiuskv 0:2f0e1e23c242 4685 } while (clst);
glebiuskv 0:2f0e1e23c242 4686 } else
glebiuskv 0:2f0e1e23c242 4687 #endif
glebiuskv 0:2f0e1e23c242 4688 { /* FAT16/32: Scan WORD/DWORD FAT entries */
glebiuskv 0:2f0e1e23c242 4689 clst = fs->n_fatent; /* Number of entries */
glebiuskv 0:2f0e1e23c242 4690 sect = fs->fatbase; /* Top of the FAT */
glebiuskv 0:2f0e1e23c242 4691 i = 0; /* Offset in the sector */
glebiuskv 0:2f0e1e23c242 4692 do { /* Counts numbuer of entries with zero in the FAT */
glebiuskv 0:2f0e1e23c242 4693 if (i == 0) {
glebiuskv 0:2f0e1e23c242 4694 res = move_window(fs, sect++);
glebiuskv 0:2f0e1e23c242 4695 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 4696 }
glebiuskv 0:2f0e1e23c242 4697 if (fs->fs_type == FS_FAT16) {
glebiuskv 0:2f0e1e23c242 4698 if (ld_word(fs->win + i) == 0) nfree++;
glebiuskv 0:2f0e1e23c242 4699 i += 2;
glebiuskv 0:2f0e1e23c242 4700 } else {
glebiuskv 0:2f0e1e23c242 4701 if ((ld_dword(fs->win + i) & 0x0FFFFFFF) == 0) nfree++;
glebiuskv 0:2f0e1e23c242 4702 i += 4;
glebiuskv 0:2f0e1e23c242 4703 }
glebiuskv 0:2f0e1e23c242 4704 i %= SS(fs);
glebiuskv 0:2f0e1e23c242 4705 } while (--clst);
glebiuskv 0:2f0e1e23c242 4706 }
glebiuskv 0:2f0e1e23c242 4707 }
glebiuskv 0:2f0e1e23c242 4708 *nclst = nfree; /* Return the free clusters */
glebiuskv 0:2f0e1e23c242 4709 fs->free_clst = nfree; /* Now free_clst is valid */
glebiuskv 0:2f0e1e23c242 4710 fs->fsi_flag |= 1; /* FAT32: FSInfo is to be updated */
glebiuskv 0:2f0e1e23c242 4711 }
glebiuskv 0:2f0e1e23c242 4712 }
glebiuskv 0:2f0e1e23c242 4713
glebiuskv 0:2f0e1e23c242 4714 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4715 }
glebiuskv 0:2f0e1e23c242 4716
glebiuskv 0:2f0e1e23c242 4717
glebiuskv 0:2f0e1e23c242 4718
glebiuskv 0:2f0e1e23c242 4719
glebiuskv 0:2f0e1e23c242 4720 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4721 /* Truncate File */
glebiuskv 0:2f0e1e23c242 4722 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4723
glebiuskv 0:2f0e1e23c242 4724 FRESULT f_truncate (
glebiuskv 0:2f0e1e23c242 4725 FIL* fp /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 4726 )
glebiuskv 0:2f0e1e23c242 4727 {
glebiuskv 0:2f0e1e23c242 4728 FRESULT res;
glebiuskv 0:2f0e1e23c242 4729 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4730 DWORD ncl;
glebiuskv 0:2f0e1e23c242 4731
glebiuskv 0:2f0e1e23c242 4732
glebiuskv 0:2f0e1e23c242 4733 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 4734 if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4735 if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
glebiuskv 0:2f0e1e23c242 4736
glebiuskv 0:2f0e1e23c242 4737 if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */
glebiuskv 0:2f0e1e23c242 4738 if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
glebiuskv 0:2f0e1e23c242 4739 res = remove_chain(&fp->obj, fp->obj.sclust, 0);
glebiuskv 0:2f0e1e23c242 4740 fp->obj.sclust = 0;
glebiuskv 0:2f0e1e23c242 4741 } else { /* When truncate a part of the file, remove remaining clusters */
glebiuskv 0:2f0e1e23c242 4742 ncl = get_fat(&fp->obj, fp->clust);
glebiuskv 0:2f0e1e23c242 4743 res = FR_OK;
glebiuskv 0:2f0e1e23c242 4744 if (ncl == 0xFFFFFFFF) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 4745 if (ncl == 1) res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 4746 if (res == FR_OK && ncl < fs->n_fatent) {
glebiuskv 0:2f0e1e23c242 4747 res = remove_chain(&fp->obj, ncl, fp->clust);
glebiuskv 0:2f0e1e23c242 4748 }
glebiuskv 0:2f0e1e23c242 4749 }
glebiuskv 0:2f0e1e23c242 4750 fp->obj.objsize = fp->fptr; /* Set file size to current read/write point */
glebiuskv 0:2f0e1e23c242 4751 fp->flag |= FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 4752 #if !FF_FS_TINY
glebiuskv 0:2f0e1e23c242 4753 if (res == FR_OK && (fp->flag & FA_DIRTY)) {
glebiuskv 0:2f0e1e23c242 4754 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) {
glebiuskv 0:2f0e1e23c242 4755 res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 4756 } else {
glebiuskv 0:2f0e1e23c242 4757 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 4758 }
glebiuskv 0:2f0e1e23c242 4759 }
glebiuskv 0:2f0e1e23c242 4760 #endif
glebiuskv 0:2f0e1e23c242 4761 if (res != FR_OK) ABORT(fs, res);
glebiuskv 0:2f0e1e23c242 4762 }
glebiuskv 0:2f0e1e23c242 4763
glebiuskv 0:2f0e1e23c242 4764 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4765 }
glebiuskv 0:2f0e1e23c242 4766
glebiuskv 0:2f0e1e23c242 4767
glebiuskv 0:2f0e1e23c242 4768
glebiuskv 0:2f0e1e23c242 4769
glebiuskv 0:2f0e1e23c242 4770 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4771 /* Delete a File/Directory */
glebiuskv 0:2f0e1e23c242 4772 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4773
glebiuskv 0:2f0e1e23c242 4774 FRESULT f_unlink (
glebiuskv 0:2f0e1e23c242 4775 const TCHAR* path /* Pointer to the file or directory path */
glebiuskv 0:2f0e1e23c242 4776 )
glebiuskv 0:2f0e1e23c242 4777 {
glebiuskv 0:2f0e1e23c242 4778 FRESULT res;
glebiuskv 0:2f0e1e23c242 4779 FATFS_DIR dj, sdj;
glebiuskv 0:2f0e1e23c242 4780 DWORD dclst = 0;
glebiuskv 0:2f0e1e23c242 4781 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4782 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4783 FFOBJID obj;
glebiuskv 0:2f0e1e23c242 4784 #endif
glebiuskv 0:2f0e1e23c242 4785 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4786
glebiuskv 0:2f0e1e23c242 4787
glebiuskv 0:2f0e1e23c242 4788 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4789 res = find_volume(&path, &fs, FA_WRITE);
glebiuskv 0:2f0e1e23c242 4790 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4791 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4792 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4793 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 4794 if (FF_FS_RPATH && res == FR_OK && (dj.fn[NSFLAG] & NS_DOT)) {
glebiuskv 0:2f0e1e23c242 4795 res = FR_INVALID_NAME; /* Cannot remove dot entry */
glebiuskv 0:2f0e1e23c242 4796 }
glebiuskv 0:2f0e1e23c242 4797 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 4798 if (res == FR_OK) res = chk_lock(&dj, 2); /* Check if it is an open object */
glebiuskv 0:2f0e1e23c242 4799 #endif
glebiuskv 0:2f0e1e23c242 4800 if (res == FR_OK) { /* The object is accessible */
glebiuskv 0:2f0e1e23c242 4801 if (dj.fn[NSFLAG] & NS_NONAME) {
glebiuskv 0:2f0e1e23c242 4802 res = FR_INVALID_NAME; /* Cannot remove the origin directory */
glebiuskv 0:2f0e1e23c242 4803 } else {
glebiuskv 0:2f0e1e23c242 4804 if (dj.obj.attr & AM_RDO) {
glebiuskv 0:2f0e1e23c242 4805 res = FR_DENIED; /* Cannot remove R/O object */
glebiuskv 0:2f0e1e23c242 4806 }
glebiuskv 0:2f0e1e23c242 4807 }
glebiuskv 0:2f0e1e23c242 4808 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4809 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4810 obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4811 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4812 init_alloc_info(fs, &obj);
glebiuskv 0:2f0e1e23c242 4813 dclst = obj.sclust;
glebiuskv 0:2f0e1e23c242 4814 } else
glebiuskv 0:2f0e1e23c242 4815 #endif
glebiuskv 0:2f0e1e23c242 4816 {
glebiuskv 0:2f0e1e23c242 4817 dclst = ld_clust(fs, dj.dir);
glebiuskv 0:2f0e1e23c242 4818 }
glebiuskv 0:2f0e1e23c242 4819 if (dj.obj.attr & AM_DIR) { /* Is it a sub-directory? */
glebiuskv 0:2f0e1e23c242 4820 #if FF_FS_RPATH != 0
glebiuskv 0:2f0e1e23c242 4821 if (dclst == fs->cdir) { /* Is it the current directory? */
glebiuskv 0:2f0e1e23c242 4822 res = FR_DENIED;
glebiuskv 0:2f0e1e23c242 4823 } else
glebiuskv 0:2f0e1e23c242 4824 #endif
glebiuskv 0:2f0e1e23c242 4825 {
glebiuskv 0:2f0e1e23c242 4826 sdj.obj.fs = fs; /* Open the sub-directory */
glebiuskv 0:2f0e1e23c242 4827 sdj.obj.sclust = dclst;
glebiuskv 0:2f0e1e23c242 4828 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4829 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 4830 sdj.obj.objsize = obj.objsize;
glebiuskv 0:2f0e1e23c242 4831 sdj.obj.stat = obj.stat;
glebiuskv 0:2f0e1e23c242 4832 }
glebiuskv 0:2f0e1e23c242 4833 #endif
glebiuskv 0:2f0e1e23c242 4834 res = dir_sdi(&sdj, 0);
glebiuskv 0:2f0e1e23c242 4835 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4836 res = dir_read_file(&sdj); /* Test if the directory is empty */
glebiuskv 0:2f0e1e23c242 4837 if (res == FR_OK) res = FR_DENIED; /* Not empty? */
glebiuskv 0:2f0e1e23c242 4838 if (res == FR_NO_FILE) res = FR_OK; /* Empty? */
glebiuskv 0:2f0e1e23c242 4839 }
glebiuskv 0:2f0e1e23c242 4840 }
glebiuskv 0:2f0e1e23c242 4841 }
glebiuskv 0:2f0e1e23c242 4842 }
glebiuskv 0:2f0e1e23c242 4843 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4844 res = dir_remove(&dj); /* Remove the directory entry */
glebiuskv 0:2f0e1e23c242 4845 if (res == FR_OK && dclst != 0) { /* Remove the cluster chain if exist */
glebiuskv 0:2f0e1e23c242 4846 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4847 res = remove_chain(&obj, dclst, 0);
glebiuskv 0:2f0e1e23c242 4848 #else
glebiuskv 0:2f0e1e23c242 4849 res = remove_chain(&dj.obj, dclst, 0);
glebiuskv 0:2f0e1e23c242 4850 #endif
glebiuskv 0:2f0e1e23c242 4851 }
glebiuskv 0:2f0e1e23c242 4852 if (res == FR_OK) res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 4853 }
glebiuskv 0:2f0e1e23c242 4854 }
glebiuskv 0:2f0e1e23c242 4855 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4856 }
glebiuskv 0:2f0e1e23c242 4857
glebiuskv 0:2f0e1e23c242 4858 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4859 }
glebiuskv 0:2f0e1e23c242 4860
glebiuskv 0:2f0e1e23c242 4861
glebiuskv 0:2f0e1e23c242 4862
glebiuskv 0:2f0e1e23c242 4863
glebiuskv 0:2f0e1e23c242 4864 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4865 /* Create a Directory */
glebiuskv 0:2f0e1e23c242 4866 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4867
glebiuskv 0:2f0e1e23c242 4868 FRESULT f_mkdir (
glebiuskv 0:2f0e1e23c242 4869 const TCHAR* path /* Pointer to the directory path */
glebiuskv 0:2f0e1e23c242 4870 )
glebiuskv 0:2f0e1e23c242 4871 {
glebiuskv 0:2f0e1e23c242 4872 FRESULT res;
glebiuskv 0:2f0e1e23c242 4873 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 4874 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4875 BYTE *dir;
glebiuskv 0:2f0e1e23c242 4876 DWORD dcl, pcl, tm;
glebiuskv 0:2f0e1e23c242 4877 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4878
glebiuskv 0:2f0e1e23c242 4879
glebiuskv 0:2f0e1e23c242 4880 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 4881 res = find_volume(&path, &fs, FA_WRITE);
glebiuskv 0:2f0e1e23c242 4882 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4883 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4884 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4885 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 4886 if (res == FR_OK) res = FR_EXIST; /* Any object with same name is already existing */
glebiuskv 0:2f0e1e23c242 4887 if (FF_FS_RPATH && res == FR_NO_FILE && (dj.fn[NSFLAG] & NS_DOT)) {
glebiuskv 0:2f0e1e23c242 4888 res = FR_INVALID_NAME;
glebiuskv 0:2f0e1e23c242 4889 }
glebiuskv 0:2f0e1e23c242 4890 if (res == FR_NO_FILE) { /* Can create a new directory */
glebiuskv 0:2f0e1e23c242 4891 dcl = create_chain(&dj.obj, 0); /* Allocate a cluster for the new directory table */
glebiuskv 0:2f0e1e23c242 4892 dj.obj.objsize = (DWORD)fs->csize * SS(fs);
glebiuskv 0:2f0e1e23c242 4893 res = FR_OK;
glebiuskv 0:2f0e1e23c242 4894 if (dcl == 0) res = FR_DENIED; /* No space to allocate a new cluster */
glebiuskv 0:2f0e1e23c242 4895 if (dcl == 1) res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 4896 if (dcl == 0xFFFFFFFF) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 4897 if (res == FR_OK) res = sync_window(fs); /* Flush FAT */
glebiuskv 0:2f0e1e23c242 4898 tm = GET_FATTIME();
glebiuskv 0:2f0e1e23c242 4899 if (res == FR_OK) { /* Initialize the new directory table */
glebiuskv 0:2f0e1e23c242 4900 res = dir_clear(fs, dcl); /* Clean up the new table */
glebiuskv 0:2f0e1e23c242 4901 if (res == FR_OK && (!FF_FS_EXFAT || fs->fs_type != FS_EXFAT)) { /* Create dot entries (FAT only) */
glebiuskv 0:2f0e1e23c242 4902 dir = fs->win;
glebiuskv 0:2f0e1e23c242 4903 mem_set(dir + DIR_Name, ' ', 11); /* Create "." entry */
glebiuskv 0:2f0e1e23c242 4904 dir[DIR_Name] = '.';
glebiuskv 0:2f0e1e23c242 4905 dir[DIR_Attr] = AM_DIR;
glebiuskv 0:2f0e1e23c242 4906 st_dword(dir + DIR_ModTime, tm);
glebiuskv 0:2f0e1e23c242 4907 st_clust(fs, dir, dcl);
glebiuskv 0:2f0e1e23c242 4908 mem_cpy(dir + SZDIRE, dir, SZDIRE); /* Create ".." entry */
glebiuskv 0:2f0e1e23c242 4909 dir[SZDIRE + 1] = '.'; pcl = dj.obj.sclust;
glebiuskv 0:2f0e1e23c242 4910 st_clust(fs, dir + SZDIRE, pcl);
glebiuskv 0:2f0e1e23c242 4911 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 4912 }
glebiuskv 0:2f0e1e23c242 4913 }
glebiuskv 0:2f0e1e23c242 4914 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4915 res = dir_register(&dj); /* Register the object to the directoy */
glebiuskv 0:2f0e1e23c242 4916 }
glebiuskv 0:2f0e1e23c242 4917 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4918 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4919 if (fs->fs_type == FS_EXFAT) { /* Initialize directory entry block */
glebiuskv 0:2f0e1e23c242 4920 st_dword(fs->dirbuf + XDIR_ModTime, tm); /* Created time */
glebiuskv 0:2f0e1e23c242 4921 st_dword(fs->dirbuf + XDIR_FstClus, dcl); /* Table start cluster */
glebiuskv 0:2f0e1e23c242 4922 st_dword(fs->dirbuf + XDIR_FileSize, (DWORD)dj.obj.objsize); /* File size needs to be valid */
glebiuskv 0:2f0e1e23c242 4923 st_dword(fs->dirbuf + XDIR_ValidFileSize, (DWORD)dj.obj.objsize);
glebiuskv 0:2f0e1e23c242 4924 fs->dirbuf[XDIR_GenFlags] = 3; /* Initialize the object flag */
glebiuskv 0:2f0e1e23c242 4925 fs->dirbuf[XDIR_Attr] = AM_DIR; /* Attribute */
glebiuskv 0:2f0e1e23c242 4926 res = store_xdir(&dj);
glebiuskv 0:2f0e1e23c242 4927 } else
glebiuskv 0:2f0e1e23c242 4928 #endif
glebiuskv 0:2f0e1e23c242 4929 {
glebiuskv 0:2f0e1e23c242 4930 dir = dj.dir;
glebiuskv 0:2f0e1e23c242 4931 st_dword(dir + DIR_ModTime, tm); /* Created time */
glebiuskv 0:2f0e1e23c242 4932 st_clust(fs, dir, dcl); /* Table start cluster */
glebiuskv 0:2f0e1e23c242 4933 dir[DIR_Attr] = AM_DIR; /* Attribute */
glebiuskv 0:2f0e1e23c242 4934 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 4935 }
glebiuskv 0:2f0e1e23c242 4936 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4937 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 4938 }
glebiuskv 0:2f0e1e23c242 4939 } else {
glebiuskv 0:2f0e1e23c242 4940 remove_chain(&dj.obj, dcl, 0); /* Could not register, remove cluster chain */
glebiuskv 0:2f0e1e23c242 4941 }
glebiuskv 0:2f0e1e23c242 4942 }
glebiuskv 0:2f0e1e23c242 4943 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 4944 }
glebiuskv 0:2f0e1e23c242 4945
glebiuskv 0:2f0e1e23c242 4946 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 4947 }
glebiuskv 0:2f0e1e23c242 4948
glebiuskv 0:2f0e1e23c242 4949
glebiuskv 0:2f0e1e23c242 4950
glebiuskv 0:2f0e1e23c242 4951
glebiuskv 0:2f0e1e23c242 4952 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4953 /* Rename a File/Directory */
glebiuskv 0:2f0e1e23c242 4954 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 4955
glebiuskv 0:2f0e1e23c242 4956 FRESULT f_rename (
glebiuskv 0:2f0e1e23c242 4957 const TCHAR* path_old, /* Pointer to the object name to be renamed */
glebiuskv 0:2f0e1e23c242 4958 const TCHAR* path_new /* Pointer to the new name */
glebiuskv 0:2f0e1e23c242 4959 )
glebiuskv 0:2f0e1e23c242 4960 {
glebiuskv 0:2f0e1e23c242 4961 FRESULT res;
glebiuskv 0:2f0e1e23c242 4962 FATFS_DIR djo, djn;
glebiuskv 0:2f0e1e23c242 4963 FATFS *fs;
glebiuskv 0:2f0e1e23c242 4964 BYTE buf[FF_FS_EXFAT ? SZDIRE * 2 : SZDIRE], *dir;
glebiuskv 0:2f0e1e23c242 4965 DWORD dw;
glebiuskv 0:2f0e1e23c242 4966 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 4967
glebiuskv 0:2f0e1e23c242 4968
glebiuskv 0:2f0e1e23c242 4969 get_ldnumber(&path_new); /* Snip the drive number of new name off */
glebiuskv 0:2f0e1e23c242 4970 res = find_volume(&path_old, &fs, FA_WRITE); /* Get logical drive of the old object */
glebiuskv 0:2f0e1e23c242 4971 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4972 djo.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 4973 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 4974 res = follow_path(&djo, path_old); /* Check old object */
glebiuskv 0:2f0e1e23c242 4975 if (res == FR_OK && (djo.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check validity of name */
glebiuskv 0:2f0e1e23c242 4976 #if FF_FS_LOCK != 0
glebiuskv 0:2f0e1e23c242 4977 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4978 res = chk_lock(&djo, 2);
glebiuskv 0:2f0e1e23c242 4979 }
glebiuskv 0:2f0e1e23c242 4980 #endif
glebiuskv 0:2f0e1e23c242 4981 if (res == FR_OK) { /* Object to be renamed is found */
glebiuskv 0:2f0e1e23c242 4982 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 4983 if (fs->fs_type == FS_EXFAT) { /* At exFAT volume */
glebiuskv 0:2f0e1e23c242 4984 BYTE nf, nn;
glebiuskv 0:2f0e1e23c242 4985 WORD nh;
glebiuskv 0:2f0e1e23c242 4986
glebiuskv 0:2f0e1e23c242 4987 mem_cpy(buf, fs->dirbuf, SZDIRE * 2); /* Save 85+C0 entry of old object */
glebiuskv 0:2f0e1e23c242 4988 mem_cpy(&djn, &djo, sizeof djo);
glebiuskv 0:2f0e1e23c242 4989 res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */
glebiuskv 0:2f0e1e23c242 4990 if (res == FR_OK) { /* Is new name already in use by any other object? */
glebiuskv 0:2f0e1e23c242 4991 res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;
glebiuskv 0:2f0e1e23c242 4992 }
glebiuskv 0:2f0e1e23c242 4993 if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
glebiuskv 0:2f0e1e23c242 4994 res = dir_register(&djn); /* Register the new entry */
glebiuskv 0:2f0e1e23c242 4995 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 4996 nf = fs->dirbuf[XDIR_NumSec]; nn = fs->dirbuf[XDIR_NumName];
glebiuskv 0:2f0e1e23c242 4997 nh = ld_word(fs->dirbuf + XDIR_NameHash);
glebiuskv 0:2f0e1e23c242 4998 mem_cpy(fs->dirbuf, buf, SZDIRE * 2); /* Restore 85+C0 entry */
glebiuskv 0:2f0e1e23c242 4999 fs->dirbuf[XDIR_NumSec] = nf; fs->dirbuf[XDIR_NumName] = nn;
glebiuskv 0:2f0e1e23c242 5000 st_word(fs->dirbuf + XDIR_NameHash, nh);
glebiuskv 0:2f0e1e23c242 5001 if (!(fs->dirbuf[XDIR_Attr] & AM_DIR)) fs->dirbuf[XDIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */
glebiuskv 0:2f0e1e23c242 5002 /* Start of critical section where an interruption can cause a cross-link */
glebiuskv 0:2f0e1e23c242 5003 res = store_xdir(&djn);
glebiuskv 0:2f0e1e23c242 5004 }
glebiuskv 0:2f0e1e23c242 5005 }
glebiuskv 0:2f0e1e23c242 5006 } else
glebiuskv 0:2f0e1e23c242 5007 #endif
glebiuskv 0:2f0e1e23c242 5008 { /* At FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 5009 mem_cpy(buf, djo.dir, SZDIRE); /* Save directory entry of the object */
glebiuskv 0:2f0e1e23c242 5010 mem_cpy(&djn, &djo, sizeof (FATFS_DIR)); /* Duplicate the directory object */
glebiuskv 0:2f0e1e23c242 5011 res = follow_path(&djn, path_new); /* Make sure if new object name is not in use */
glebiuskv 0:2f0e1e23c242 5012 if (res == FR_OK) { /* Is new name already in use by any other object? */
glebiuskv 0:2f0e1e23c242 5013 res = (djn.obj.sclust == djo.obj.sclust && djn.dptr == djo.dptr) ? FR_NO_FILE : FR_EXIST;
glebiuskv 0:2f0e1e23c242 5014 }
glebiuskv 0:2f0e1e23c242 5015 if (res == FR_NO_FILE) { /* It is a valid path and no name collision */
glebiuskv 0:2f0e1e23c242 5016 res = dir_register(&djn); /* Register the new entry */
glebiuskv 0:2f0e1e23c242 5017 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5018 dir = djn.dir; /* Copy directory entry of the object except name */
glebiuskv 0:2f0e1e23c242 5019 mem_cpy(dir + 13, buf + 13, SZDIRE - 13);
glebiuskv 0:2f0e1e23c242 5020 dir[DIR_Attr] = buf[DIR_Attr];
glebiuskv 0:2f0e1e23c242 5021 if (!(dir[DIR_Attr] & AM_DIR)) dir[DIR_Attr] |= AM_ARC; /* Set archive attribute if it is a file */
glebiuskv 0:2f0e1e23c242 5022 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5023 if ((dir[DIR_Attr] & AM_DIR) && djo.obj.sclust != djn.obj.sclust) { /* Update .. entry in the sub-directory if needed */
glebiuskv 0:2f0e1e23c242 5024 dw = clst2sect(fs, ld_clust(fs, dir));
glebiuskv 0:2f0e1e23c242 5025 if (dw == 0) {
glebiuskv 0:2f0e1e23c242 5026 res = FR_INT_ERR;
glebiuskv 0:2f0e1e23c242 5027 } else {
glebiuskv 0:2f0e1e23c242 5028 /* Start of critical section where an interruption can cause a cross-link */
glebiuskv 0:2f0e1e23c242 5029 res = move_window(fs, dw);
glebiuskv 0:2f0e1e23c242 5030 dir = fs->win + SZDIRE * 1; /* Ptr to .. entry */
glebiuskv 0:2f0e1e23c242 5031 if (res == FR_OK && dir[1] == '.') {
glebiuskv 0:2f0e1e23c242 5032 st_clust(fs, dir, djn.obj.sclust);
glebiuskv 0:2f0e1e23c242 5033 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5034 }
glebiuskv 0:2f0e1e23c242 5035 }
glebiuskv 0:2f0e1e23c242 5036 }
glebiuskv 0:2f0e1e23c242 5037 }
glebiuskv 0:2f0e1e23c242 5038 }
glebiuskv 0:2f0e1e23c242 5039 }
glebiuskv 0:2f0e1e23c242 5040 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5041 res = dir_remove(&djo); /* Remove old entry */
glebiuskv 0:2f0e1e23c242 5042 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5043 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 5044 }
glebiuskv 0:2f0e1e23c242 5045 }
glebiuskv 0:2f0e1e23c242 5046 /* End of the critical section */
glebiuskv 0:2f0e1e23c242 5047 }
glebiuskv 0:2f0e1e23c242 5048 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 5049 }
glebiuskv 0:2f0e1e23c242 5050
glebiuskv 0:2f0e1e23c242 5051 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5052 }
glebiuskv 0:2f0e1e23c242 5053
glebiuskv 0:2f0e1e23c242 5054 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 5055 #endif /* FF_FS_MINIMIZE == 0 */
glebiuskv 0:2f0e1e23c242 5056 #endif /* FF_FS_MINIMIZE <= 1 */
glebiuskv 0:2f0e1e23c242 5057 #endif /* FF_FS_MINIMIZE <= 2 */
glebiuskv 0:2f0e1e23c242 5058
glebiuskv 0:2f0e1e23c242 5059
glebiuskv 0:2f0e1e23c242 5060
glebiuskv 0:2f0e1e23c242 5061 #if FF_USE_CHMOD && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 5062 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5063 /* Change Attribute */
glebiuskv 0:2f0e1e23c242 5064 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5065
glebiuskv 0:2f0e1e23c242 5066 FRESULT f_chmod (
glebiuskv 0:2f0e1e23c242 5067 const TCHAR* path, /* Pointer to the file path */
glebiuskv 0:2f0e1e23c242 5068 BYTE attr, /* Attribute bits */
glebiuskv 0:2f0e1e23c242 5069 BYTE mask /* Attribute mask to change */
glebiuskv 0:2f0e1e23c242 5070 )
glebiuskv 0:2f0e1e23c242 5071 {
glebiuskv 0:2f0e1e23c242 5072 FRESULT res;
glebiuskv 0:2f0e1e23c242 5073 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 5074 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5075 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 5076
glebiuskv 0:2f0e1e23c242 5077
glebiuskv 0:2f0e1e23c242 5078 res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */
glebiuskv 0:2f0e1e23c242 5079 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5080 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 5081 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 5082 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 5083 if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */
glebiuskv 0:2f0e1e23c242 5084 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5085 mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
glebiuskv 0:2f0e1e23c242 5086 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5087 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5088 fs->dirbuf[XDIR_Attr] = (attr & mask) | (fs->dirbuf[XDIR_Attr] & (BYTE)~mask); /* Apply attribute change */
glebiuskv 0:2f0e1e23c242 5089 res = store_xdir(&dj);
glebiuskv 0:2f0e1e23c242 5090 } else
glebiuskv 0:2f0e1e23c242 5091 #endif
glebiuskv 0:2f0e1e23c242 5092 {
glebiuskv 0:2f0e1e23c242 5093 dj.dir[DIR_Attr] = (attr & mask) | (dj.dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
glebiuskv 0:2f0e1e23c242 5094 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5095 }
glebiuskv 0:2f0e1e23c242 5096 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5097 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 5098 }
glebiuskv 0:2f0e1e23c242 5099 }
glebiuskv 0:2f0e1e23c242 5100 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 5101 }
glebiuskv 0:2f0e1e23c242 5102
glebiuskv 0:2f0e1e23c242 5103 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5104 }
glebiuskv 0:2f0e1e23c242 5105
glebiuskv 0:2f0e1e23c242 5106
glebiuskv 0:2f0e1e23c242 5107
glebiuskv 0:2f0e1e23c242 5108
glebiuskv 0:2f0e1e23c242 5109 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5110 /* Change Timestamp */
glebiuskv 0:2f0e1e23c242 5111 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5112
glebiuskv 0:2f0e1e23c242 5113 FRESULT f_utime (
glebiuskv 0:2f0e1e23c242 5114 const TCHAR* path, /* Pointer to the file/directory name */
glebiuskv 0:2f0e1e23c242 5115 const FILINFO* fno /* Pointer to the timestamp to be set */
glebiuskv 0:2f0e1e23c242 5116 )
glebiuskv 0:2f0e1e23c242 5117 {
glebiuskv 0:2f0e1e23c242 5118 FRESULT res;
glebiuskv 0:2f0e1e23c242 5119 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 5120 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5121 DEF_NAMBUF
glebiuskv 0:2f0e1e23c242 5122
glebiuskv 0:2f0e1e23c242 5123
glebiuskv 0:2f0e1e23c242 5124 res = find_volume(&path, &fs, FA_WRITE); /* Get logical drive */
glebiuskv 0:2f0e1e23c242 5125 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5126 dj.obj.fs = fs;
glebiuskv 0:2f0e1e23c242 5127 INIT_NAMBUF(fs);
glebiuskv 0:2f0e1e23c242 5128 res = follow_path(&dj, path); /* Follow the file path */
glebiuskv 0:2f0e1e23c242 5129 if (res == FR_OK && (dj.fn[NSFLAG] & (NS_DOT | NS_NONAME))) res = FR_INVALID_NAME; /* Check object validity */
glebiuskv 0:2f0e1e23c242 5130 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5131 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5132 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5133 st_dword(fs->dirbuf + XDIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);
glebiuskv 0:2f0e1e23c242 5134 res = store_xdir(&dj);
glebiuskv 0:2f0e1e23c242 5135 } else
glebiuskv 0:2f0e1e23c242 5136 #endif
glebiuskv 0:2f0e1e23c242 5137 {
glebiuskv 0:2f0e1e23c242 5138 st_dword(dj.dir + DIR_ModTime, (DWORD)fno->fdate << 16 | fno->ftime);
glebiuskv 0:2f0e1e23c242 5139 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5140 }
glebiuskv 0:2f0e1e23c242 5141 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5142 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 5143 }
glebiuskv 0:2f0e1e23c242 5144 }
glebiuskv 0:2f0e1e23c242 5145 FREE_NAMBUF();
glebiuskv 0:2f0e1e23c242 5146 }
glebiuskv 0:2f0e1e23c242 5147
glebiuskv 0:2f0e1e23c242 5148 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5149 }
glebiuskv 0:2f0e1e23c242 5150
glebiuskv 0:2f0e1e23c242 5151 #endif /* FF_USE_CHMOD && !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 5152
glebiuskv 0:2f0e1e23c242 5153
glebiuskv 0:2f0e1e23c242 5154
glebiuskv 0:2f0e1e23c242 5155 #if FF_USE_LABEL
glebiuskv 0:2f0e1e23c242 5156 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5157 /* Get Volume Label */
glebiuskv 0:2f0e1e23c242 5158 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5159
glebiuskv 0:2f0e1e23c242 5160 FRESULT f_getlabel (
glebiuskv 0:2f0e1e23c242 5161 const TCHAR* path, /* Logical drive number */
glebiuskv 0:2f0e1e23c242 5162 TCHAR* label, /* Buffer to store the volume label */
glebiuskv 0:2f0e1e23c242 5163 DWORD* vsn /* Variable to store the volume serial number */
glebiuskv 0:2f0e1e23c242 5164 )
glebiuskv 0:2f0e1e23c242 5165 {
glebiuskv 0:2f0e1e23c242 5166 FRESULT res;
glebiuskv 0:2f0e1e23c242 5167 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 5168 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5169 UINT si, di;
glebiuskv 0:2f0e1e23c242 5170 WCHAR wc;
glebiuskv 0:2f0e1e23c242 5171
glebiuskv 0:2f0e1e23c242 5172 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 5173 res = find_volume(&path, &fs, 0);
glebiuskv 0:2f0e1e23c242 5174
glebiuskv 0:2f0e1e23c242 5175 /* Get volume label */
glebiuskv 0:2f0e1e23c242 5176 if (res == FR_OK && label) {
glebiuskv 0:2f0e1e23c242 5177 dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */
glebiuskv 0:2f0e1e23c242 5178 res = dir_sdi(&dj, 0);
glebiuskv 0:2f0e1e23c242 5179 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5180 res = dir_read_label(&dj); /* Find a volume label entry */
glebiuskv 0:2f0e1e23c242 5181 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5182 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5183 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5184 WCHAR hs;
glebiuskv 0:2f0e1e23c242 5185
glebiuskv 0:2f0e1e23c242 5186 for (si = di = hs = 0; si < dj.dir[XDIR_NumLabel]; si++) { /* Extract volume label from 83 entry */
glebiuskv 0:2f0e1e23c242 5187 wc = ld_word(dj.dir + XDIR_Label + si * 2);
glebiuskv 0:2f0e1e23c242 5188 if (hs == 0 && IsSurrogate(wc)) { /* Is the code a surrogate? */
glebiuskv 0:2f0e1e23c242 5189 hs = wc; continue;
glebiuskv 0:2f0e1e23c242 5190 }
glebiuskv 0:2f0e1e23c242 5191 wc = put_utf((DWORD)hs << 16 | wc, &label[di], 4);
glebiuskv 0:2f0e1e23c242 5192 if (wc == 0) { di = 0; break; }
glebiuskv 0:2f0e1e23c242 5193 di += wc;
glebiuskv 0:2f0e1e23c242 5194 hs = 0;
glebiuskv 0:2f0e1e23c242 5195 }
glebiuskv 0:2f0e1e23c242 5196 if (hs != 0) di = 0; /* Broken surrogate pair? */
glebiuskv 0:2f0e1e23c242 5197 label[di] = 0;
glebiuskv 0:2f0e1e23c242 5198 } else
glebiuskv 0:2f0e1e23c242 5199 #endif
glebiuskv 0:2f0e1e23c242 5200 {
glebiuskv 0:2f0e1e23c242 5201 si = di = 0; /* Extract volume label from AM_VOL entry */
glebiuskv 0:2f0e1e23c242 5202 while (si < 11) {
glebiuskv 0:2f0e1e23c242 5203 wc = dj.dir[si++];
glebiuskv 0:2f0e1e23c242 5204 #if FF_USE_LFN && FF_LFN_UNICODE >= 1 /* Unicode output */
glebiuskv 0:2f0e1e23c242 5205 if (dbc_1st((BYTE)wc) && si < 11) wc = wc << 8 | dj.dir[si++]; /* Is it a DBC? */
glebiuskv 0:2f0e1e23c242 5206 wc = ff_oem2uni(wc, CODEPAGE);
glebiuskv 0:2f0e1e23c242 5207 if (wc != 0) wc = put_utf(wc, &label[di], 4);
glebiuskv 0:2f0e1e23c242 5208 if (wc == 0) { di = 0; break; }
glebiuskv 0:2f0e1e23c242 5209 di += wc;
glebiuskv 0:2f0e1e23c242 5210 #else /* ANSI/OEM output */
glebiuskv 0:2f0e1e23c242 5211 label[di++] = (TCHAR)wc;
glebiuskv 0:2f0e1e23c242 5212 #endif
glebiuskv 0:2f0e1e23c242 5213 }
glebiuskv 0:2f0e1e23c242 5214 do { /* Truncate trailing spaces */
glebiuskv 0:2f0e1e23c242 5215 label[di] = 0;
glebiuskv 0:2f0e1e23c242 5216 if (di == 0) break;
glebiuskv 0:2f0e1e23c242 5217 } while (label[--di] == ' ');
glebiuskv 0:2f0e1e23c242 5218 }
glebiuskv 0:2f0e1e23c242 5219 }
glebiuskv 0:2f0e1e23c242 5220 }
glebiuskv 0:2f0e1e23c242 5221 if (res == FR_NO_FILE) { /* No label entry and return nul string */
glebiuskv 0:2f0e1e23c242 5222 label[0] = 0;
glebiuskv 0:2f0e1e23c242 5223 res = FR_OK;
glebiuskv 0:2f0e1e23c242 5224 }
glebiuskv 0:2f0e1e23c242 5225 }
glebiuskv 0:2f0e1e23c242 5226
glebiuskv 0:2f0e1e23c242 5227 /* Get volume serial number */
glebiuskv 0:2f0e1e23c242 5228 if (res == FR_OK && vsn) {
glebiuskv 0:2f0e1e23c242 5229 res = move_window(fs, fs->volbase);
glebiuskv 0:2f0e1e23c242 5230 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5231 switch (fs->fs_type) {
glebiuskv 0:2f0e1e23c242 5232 case FS_EXFAT:
glebiuskv 0:2f0e1e23c242 5233 di = BPB_VolIDEx; break;
glebiuskv 0:2f0e1e23c242 5234
glebiuskv 0:2f0e1e23c242 5235 case FS_FAT32:
glebiuskv 0:2f0e1e23c242 5236 di = BS_VolID32; break;
glebiuskv 0:2f0e1e23c242 5237
glebiuskv 0:2f0e1e23c242 5238 default:
glebiuskv 0:2f0e1e23c242 5239 di = BS_VolID;
glebiuskv 0:2f0e1e23c242 5240 }
glebiuskv 0:2f0e1e23c242 5241 *vsn = ld_dword(fs->win + di);
glebiuskv 0:2f0e1e23c242 5242 }
glebiuskv 0:2f0e1e23c242 5243 }
glebiuskv 0:2f0e1e23c242 5244
glebiuskv 0:2f0e1e23c242 5245 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5246 }
glebiuskv 0:2f0e1e23c242 5247
glebiuskv 0:2f0e1e23c242 5248
glebiuskv 0:2f0e1e23c242 5249
glebiuskv 0:2f0e1e23c242 5250 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 5251 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5252 /* Set Volume Label */
glebiuskv 0:2f0e1e23c242 5253 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5254
glebiuskv 0:2f0e1e23c242 5255 FRESULT f_setlabel (
glebiuskv 0:2f0e1e23c242 5256 const TCHAR* label /* Volume label to set with heading logical drive number */
glebiuskv 0:2f0e1e23c242 5257 )
glebiuskv 0:2f0e1e23c242 5258 {
glebiuskv 0:2f0e1e23c242 5259 FRESULT res;
glebiuskv 0:2f0e1e23c242 5260 FATFS_DIR dj;
glebiuskv 0:2f0e1e23c242 5261 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5262 BYTE dirvn[22];
glebiuskv 0:2f0e1e23c242 5263 UINT di;
glebiuskv 0:2f0e1e23c242 5264 WCHAR wc;
glebiuskv 0:2f0e1e23c242 5265 static const char badchr[] = "+.,;=[]\"*:<>\?|\x7F"; /* [0..] for FAT, [7..] for exFAT */
glebiuskv 0:2f0e1e23c242 5266 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 5267 DWORD dc;
glebiuskv 0:2f0e1e23c242 5268 #endif
glebiuskv 0:2f0e1e23c242 5269
glebiuskv 0:2f0e1e23c242 5270 /* Get logical drive */
glebiuskv 0:2f0e1e23c242 5271 res = find_volume(&label, &fs, FA_WRITE);
glebiuskv 0:2f0e1e23c242 5272 if (res != FR_OK) LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5273
glebiuskv 0:2f0e1e23c242 5274 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5275 if (fs->fs_type == FS_EXFAT) { /* On the exFAT volume */
glebiuskv 0:2f0e1e23c242 5276 mem_set(dirvn, 0, 22);
glebiuskv 0:2f0e1e23c242 5277 di = 0;
glebiuskv 0:2f0e1e23c242 5278 while (*label) { /* Create volume label in directory form */
glebiuskv 0:2f0e1e23c242 5279 dc = tchar2uni(&label); /* Get a Unicode character */
glebiuskv 0:2f0e1e23c242 5280 if (dc >= 0x10000) {
glebiuskv 0:2f0e1e23c242 5281 if (dc == 0xFFFFFFFF || di >= 10) { /* Wrong surrogate or buffer overflow */
glebiuskv 0:2f0e1e23c242 5282 dc = 0;
glebiuskv 0:2f0e1e23c242 5283 } else {
glebiuskv 0:2f0e1e23c242 5284 st_word(dirvn + di * 2, (WCHAR)(dc >> 16)); di++;
glebiuskv 0:2f0e1e23c242 5285 }
glebiuskv 0:2f0e1e23c242 5286 }
glebiuskv 0:2f0e1e23c242 5287 if (dc == 0 || chk_chr(badchr + 7, (int)dc) || di >= 11) { /* Check validity of the volume label */
glebiuskv 0:2f0e1e23c242 5288 LEAVE_FF(fs, FR_INVALID_NAME);
glebiuskv 0:2f0e1e23c242 5289 }
glebiuskv 0:2f0e1e23c242 5290 st_word(dirvn + di * 2, (WCHAR)dc); di++;
glebiuskv 0:2f0e1e23c242 5291 }
glebiuskv 0:2f0e1e23c242 5292 } else
glebiuskv 0:2f0e1e23c242 5293 #endif
glebiuskv 0:2f0e1e23c242 5294 { /* On the FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 5295 mem_set(dirvn, ' ', 11);
glebiuskv 0:2f0e1e23c242 5296 di = 0;
glebiuskv 0:2f0e1e23c242 5297 while (*label) { /* Create volume label in directory form */
glebiuskv 0:2f0e1e23c242 5298 #if FF_USE_LFN
glebiuskv 0:2f0e1e23c242 5299 dc = tchar2uni(&label);
glebiuskv 0:2f0e1e23c242 5300 wc = (dc < 0x10000) ? ff_uni2oem(ff_wtoupper(dc), CODEPAGE) : 0;
glebiuskv 0:2f0e1e23c242 5301 #else /* ANSI/OEM input */
glebiuskv 0:2f0e1e23c242 5302 wc = (BYTE)*label++;
glebiuskv 0:2f0e1e23c242 5303 if (dbc_1st((BYTE)wc)) wc = dbc_2nd((BYTE)*label) ? wc << 8 | (BYTE)*label++ : 0;
glebiuskv 0:2f0e1e23c242 5304 if (IsLower(wc)) wc -= 0x20; /* To upper ASCII characters */
glebiuskv 0:2f0e1e23c242 5305 #if FF_CODE_PAGE == 0
glebiuskv 0:2f0e1e23c242 5306 if (ExCvt && wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */
glebiuskv 0:2f0e1e23c242 5307 #elif FF_CODE_PAGE < 900
glebiuskv 0:2f0e1e23c242 5308 if (wc >= 0x80) wc = ExCvt[wc - 0x80]; /* To upper extended characters (SBCS cfg) */
glebiuskv 0:2f0e1e23c242 5309 #endif
glebiuskv 0:2f0e1e23c242 5310 #endif
glebiuskv 0:2f0e1e23c242 5311 if (wc == 0 || chk_chr(badchr + 0, (int)wc) || di >= (UINT)((wc >= 0x100) ? 10 : 11)) { /* Reject invalid characters for volume label */
glebiuskv 0:2f0e1e23c242 5312 LEAVE_FF(fs, FR_INVALID_NAME);
glebiuskv 0:2f0e1e23c242 5313 }
glebiuskv 0:2f0e1e23c242 5314 if (wc >= 0x100) dirvn[di++] = (BYTE)(wc >> 8);
glebiuskv 0:2f0e1e23c242 5315 dirvn[di++] = (BYTE)wc;
glebiuskv 0:2f0e1e23c242 5316 }
glebiuskv 0:2f0e1e23c242 5317 if (dirvn[0] == DDEM) LEAVE_FF(fs, FR_INVALID_NAME); /* Reject illegal name (heading DDEM) */
glebiuskv 0:2f0e1e23c242 5318 while (di && dirvn[di - 1] == ' ') di--; /* Snip trailing spaces */
glebiuskv 0:2f0e1e23c242 5319 }
glebiuskv 0:2f0e1e23c242 5320
glebiuskv 0:2f0e1e23c242 5321 /* Set volume label */
glebiuskv 0:2f0e1e23c242 5322 dj.obj.fs = fs; dj.obj.sclust = 0; /* Open root directory */
glebiuskv 0:2f0e1e23c242 5323 res = dir_sdi(&dj, 0);
glebiuskv 0:2f0e1e23c242 5324 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5325 res = dir_read_label(&dj); /* Get volume label entry */
glebiuskv 0:2f0e1e23c242 5326 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5327 if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5328 dj.dir[XDIR_NumLabel] = (BYTE)di; /* Change the volume label */
glebiuskv 0:2f0e1e23c242 5329 mem_cpy(dj.dir + XDIR_Label, dirvn, 22);
glebiuskv 0:2f0e1e23c242 5330 } else {
glebiuskv 0:2f0e1e23c242 5331 if (di != 0) {
glebiuskv 0:2f0e1e23c242 5332 mem_cpy(dj.dir, dirvn, 11); /* Change the volume label */
glebiuskv 0:2f0e1e23c242 5333 } else {
glebiuskv 0:2f0e1e23c242 5334 dj.dir[DIR_Name] = DDEM; /* Remove the volume label */
glebiuskv 0:2f0e1e23c242 5335 }
glebiuskv 0:2f0e1e23c242 5336 }
glebiuskv 0:2f0e1e23c242 5337 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5338 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 5339 } else { /* No volume label entry or an error */
glebiuskv 0:2f0e1e23c242 5340 if (res == FR_NO_FILE) {
glebiuskv 0:2f0e1e23c242 5341 res = FR_OK;
glebiuskv 0:2f0e1e23c242 5342 if (di != 0) { /* Create a volume label entry */
glebiuskv 0:2f0e1e23c242 5343 res = dir_alloc(&dj, 1); /* Allocate an entry */
glebiuskv 0:2f0e1e23c242 5344 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5345 mem_set(dj.dir, 0, SZDIRE); /* Clean the entry */
glebiuskv 0:2f0e1e23c242 5346 if (FF_FS_EXFAT && fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5347 dj.dir[XDIR_Type] = 0x83; /* Create 83 entry */
glebiuskv 0:2f0e1e23c242 5348 dj.dir[XDIR_NumLabel] = (BYTE)di;
glebiuskv 0:2f0e1e23c242 5349 mem_cpy(dj.dir + XDIR_Label, dirvn, 22);
glebiuskv 0:2f0e1e23c242 5350 } else {
glebiuskv 0:2f0e1e23c242 5351 dj.dir[DIR_Attr] = AM_VOL; /* Create volume label entry */
glebiuskv 0:2f0e1e23c242 5352 mem_cpy(dj.dir, dirvn, 11);
glebiuskv 0:2f0e1e23c242 5353 }
glebiuskv 0:2f0e1e23c242 5354 fs->wflag = 1;
glebiuskv 0:2f0e1e23c242 5355 res = sync_fs(fs);
glebiuskv 0:2f0e1e23c242 5356 }
glebiuskv 0:2f0e1e23c242 5357 }
glebiuskv 0:2f0e1e23c242 5358 }
glebiuskv 0:2f0e1e23c242 5359 }
glebiuskv 0:2f0e1e23c242 5360 }
glebiuskv 0:2f0e1e23c242 5361
glebiuskv 0:2f0e1e23c242 5362 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5363 }
glebiuskv 0:2f0e1e23c242 5364
glebiuskv 0:2f0e1e23c242 5365 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 5366 #endif /* FF_USE_LABEL */
glebiuskv 0:2f0e1e23c242 5367
glebiuskv 0:2f0e1e23c242 5368
glebiuskv 0:2f0e1e23c242 5369
glebiuskv 0:2f0e1e23c242 5370 #if FF_USE_EXPAND && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 5371 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5372 /* Allocate a Contiguous Blocks to the File */
glebiuskv 0:2f0e1e23c242 5373 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5374
glebiuskv 0:2f0e1e23c242 5375 FRESULT f_expand (
glebiuskv 0:2f0e1e23c242 5376 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 5377 FSIZE_t fsz, /* File size to be expanded to */
glebiuskv 0:2f0e1e23c242 5378 BYTE opt /* Operation mode 0:Find and prepare or 1:Find and allocate */
glebiuskv 0:2f0e1e23c242 5379 )
glebiuskv 0:2f0e1e23c242 5380 {
glebiuskv 0:2f0e1e23c242 5381 FRESULT res;
glebiuskv 0:2f0e1e23c242 5382 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5383 DWORD n, clst, stcl, scl, ncl, tcl, lclst;
glebiuskv 0:2f0e1e23c242 5384
glebiuskv 0:2f0e1e23c242 5385
glebiuskv 0:2f0e1e23c242 5386 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 5387 if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5388 if (fsz == 0 || fp->obj.objsize != 0 || !(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED);
glebiuskv 0:2f0e1e23c242 5389 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5390 if (fs->fs_type != FS_EXFAT && fsz >= 0x100000000) LEAVE_FF(fs, FR_DENIED); /* Check if in size limit */
glebiuskv 0:2f0e1e23c242 5391 #endif
glebiuskv 0:2f0e1e23c242 5392 n = (DWORD)fs->csize * SS(fs); /* Cluster size */
glebiuskv 0:2f0e1e23c242 5393 tcl = (DWORD)(fsz / n) + ((fsz & (n - 1)) ? 1 : 0); /* Number of clusters required */
glebiuskv 0:2f0e1e23c242 5394 stcl = fs->last_clst; lclst = 0;
glebiuskv 0:2f0e1e23c242 5395 if (stcl < 2 || stcl >= fs->n_fatent) stcl = 2;
glebiuskv 0:2f0e1e23c242 5396
glebiuskv 0:2f0e1e23c242 5397 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5398 if (fs->fs_type == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5399 scl = find_bitmap(fs, stcl, tcl); /* Find a contiguous cluster block */
glebiuskv 0:2f0e1e23c242 5400 if (scl == 0) res = FR_DENIED; /* No contiguous cluster block was found */
glebiuskv 0:2f0e1e23c242 5401 if (scl == 0xFFFFFFFF) res = FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 5402 if (res == FR_OK) { /* A contiguous free area is found */
glebiuskv 0:2f0e1e23c242 5403 if (opt) { /* Allocate it now */
glebiuskv 0:2f0e1e23c242 5404 res = change_bitmap(fs, scl, tcl, 1); /* Mark the cluster block 'in use' */
glebiuskv 0:2f0e1e23c242 5405 lclst = scl + tcl - 1;
glebiuskv 0:2f0e1e23c242 5406 } else { /* Set it as suggested point for next allocation */
glebiuskv 0:2f0e1e23c242 5407 lclst = scl - 1;
glebiuskv 0:2f0e1e23c242 5408 }
glebiuskv 0:2f0e1e23c242 5409 }
glebiuskv 0:2f0e1e23c242 5410 } else
glebiuskv 0:2f0e1e23c242 5411 #endif
glebiuskv 0:2f0e1e23c242 5412 {
glebiuskv 0:2f0e1e23c242 5413 scl = clst = stcl; ncl = 0;
glebiuskv 0:2f0e1e23c242 5414 for (;;) { /* Find a contiguous cluster block */
glebiuskv 0:2f0e1e23c242 5415 n = get_fat(&fp->obj, clst);
glebiuskv 0:2f0e1e23c242 5416 if (++clst >= fs->n_fatent) clst = 2;
glebiuskv 0:2f0e1e23c242 5417 if (n == 1) { res = FR_INT_ERR; break; }
glebiuskv 0:2f0e1e23c242 5418 if (n == 0xFFFFFFFF) { res = FR_DISK_ERR; break; }
glebiuskv 0:2f0e1e23c242 5419 if (n == 0) { /* Is it a free cluster? */
glebiuskv 0:2f0e1e23c242 5420 if (++ncl == tcl) break; /* Break if a contiguous cluster block is found */
glebiuskv 0:2f0e1e23c242 5421 } else {
glebiuskv 0:2f0e1e23c242 5422 scl = clst; ncl = 0; /* Not a free cluster */
glebiuskv 0:2f0e1e23c242 5423 }
glebiuskv 0:2f0e1e23c242 5424 if (clst == stcl) { res = FR_DENIED; break; } /* No contiguous cluster? */
glebiuskv 0:2f0e1e23c242 5425 }
glebiuskv 0:2f0e1e23c242 5426 if (res == FR_OK) { /* A contiguous free area is found */
glebiuskv 0:2f0e1e23c242 5427 if (opt) { /* Allocate it now */
glebiuskv 0:2f0e1e23c242 5428 for (clst = scl, n = tcl; n; clst++, n--) { /* Create a cluster chain on the FAT */
glebiuskv 0:2f0e1e23c242 5429 res = put_fat(fs, clst, (n == 1) ? 0xFFFFFFFF : clst + 1);
glebiuskv 0:2f0e1e23c242 5430 if (res != FR_OK) break;
glebiuskv 0:2f0e1e23c242 5431 lclst = clst;
glebiuskv 0:2f0e1e23c242 5432 }
glebiuskv 0:2f0e1e23c242 5433 } else { /* Set it as suggested point for next allocation */
glebiuskv 0:2f0e1e23c242 5434 lclst = scl - 1;
glebiuskv 0:2f0e1e23c242 5435 }
glebiuskv 0:2f0e1e23c242 5436 }
glebiuskv 0:2f0e1e23c242 5437 }
glebiuskv 0:2f0e1e23c242 5438
glebiuskv 0:2f0e1e23c242 5439 if (res == FR_OK) {
glebiuskv 0:2f0e1e23c242 5440 fs->last_clst = lclst; /* Set suggested start cluster to start next */
glebiuskv 0:2f0e1e23c242 5441 if (opt) { /* Is it allocated now? */
glebiuskv 0:2f0e1e23c242 5442 fp->obj.sclust = scl; /* Update object allocation information */
glebiuskv 0:2f0e1e23c242 5443 fp->obj.objsize = fsz;
glebiuskv 0:2f0e1e23c242 5444 if (FF_FS_EXFAT) fp->obj.stat = 2; /* Set status 'contiguous chain' */
glebiuskv 0:2f0e1e23c242 5445 fp->flag |= FA_MODIFIED;
glebiuskv 0:2f0e1e23c242 5446 if (fs->free_clst <= fs->n_fatent - 2) { /* Update FSINFO */
glebiuskv 0:2f0e1e23c242 5447 fs->free_clst -= tcl;
glebiuskv 0:2f0e1e23c242 5448 fs->fsi_flag |= 1;
glebiuskv 0:2f0e1e23c242 5449 }
glebiuskv 0:2f0e1e23c242 5450 }
glebiuskv 0:2f0e1e23c242 5451 }
glebiuskv 0:2f0e1e23c242 5452
glebiuskv 0:2f0e1e23c242 5453 LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5454 }
glebiuskv 0:2f0e1e23c242 5455
glebiuskv 0:2f0e1e23c242 5456 #endif /* FF_USE_EXPAND && !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 5457
glebiuskv 0:2f0e1e23c242 5458
glebiuskv 0:2f0e1e23c242 5459
glebiuskv 0:2f0e1e23c242 5460 #if FF_USE_FORWARD
glebiuskv 0:2f0e1e23c242 5461 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5462 /* Forward Data to the Stream Directly */
glebiuskv 0:2f0e1e23c242 5463 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5464
glebiuskv 0:2f0e1e23c242 5465 FRESULT f_forward (
glebiuskv 0:2f0e1e23c242 5466 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 5467 UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
glebiuskv 0:2f0e1e23c242 5468 UINT btf, /* Number of bytes to forward */
glebiuskv 0:2f0e1e23c242 5469 UINT* bf /* Pointer to number of bytes forwarded */
glebiuskv 0:2f0e1e23c242 5470 )
glebiuskv 0:2f0e1e23c242 5471 {
glebiuskv 0:2f0e1e23c242 5472 FRESULT res;
glebiuskv 0:2f0e1e23c242 5473 FATFS *fs;
glebiuskv 0:2f0e1e23c242 5474 DWORD clst, sect;
glebiuskv 0:2f0e1e23c242 5475 FSIZE_t remain;
glebiuskv 0:2f0e1e23c242 5476 UINT rcnt, csect;
glebiuskv 0:2f0e1e23c242 5477 BYTE *dbuf;
glebiuskv 0:2f0e1e23c242 5478
glebiuskv 0:2f0e1e23c242 5479
glebiuskv 0:2f0e1e23c242 5480 *bf = 0; /* Clear transfer byte counter */
glebiuskv 0:2f0e1e23c242 5481 res = validate(&fp->obj, &fs); /* Check validity of the file object */
glebiuskv 0:2f0e1e23c242 5482 if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) LEAVE_FF(fs, res);
glebiuskv 0:2f0e1e23c242 5483 if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
glebiuskv 0:2f0e1e23c242 5484
glebiuskv 0:2f0e1e23c242 5485 remain = fp->obj.objsize - fp->fptr;
glebiuskv 0:2f0e1e23c242 5486 if (btf > remain) btf = (UINT)remain; /* Truncate btf by remaining bytes */
glebiuskv 0:2f0e1e23c242 5487
glebiuskv 0:2f0e1e23c242 5488 for ( ; btf && (*func)(0, 0); /* Repeat until all data transferred or stream goes busy */
glebiuskv 0:2f0e1e23c242 5489 fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
glebiuskv 0:2f0e1e23c242 5490 csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */
glebiuskv 0:2f0e1e23c242 5491 if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
glebiuskv 0:2f0e1e23c242 5492 if (csect == 0) { /* On the cluster boundary? */
glebiuskv 0:2f0e1e23c242 5493 clst = (fp->fptr == 0) ? /* On the top of the file? */
glebiuskv 0:2f0e1e23c242 5494 fp->obj.sclust : get_fat(&fp->obj, fp->clust);
glebiuskv 0:2f0e1e23c242 5495 if (clst <= 1) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 5496 if (clst == 0xFFFFFFFF) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5497 fp->clust = clst; /* Update current cluster */
glebiuskv 0:2f0e1e23c242 5498 }
glebiuskv 0:2f0e1e23c242 5499 }
glebiuskv 0:2f0e1e23c242 5500 sect = clst2sect(fs, fp->clust); /* Get current data sector */
glebiuskv 0:2f0e1e23c242 5501 if (sect == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 5502 sect += csect;
glebiuskv 0:2f0e1e23c242 5503 #if FF_FS_TINY
glebiuskv 0:2f0e1e23c242 5504 if (move_window(fs, sect) != FR_OK) ABORT(fs, FR_DISK_ERR); /* Move sector window to the file data */
glebiuskv 0:2f0e1e23c242 5505 dbuf = fs->win;
glebiuskv 0:2f0e1e23c242 5506 #else
glebiuskv 0:2f0e1e23c242 5507 if (fp->sect != sect) { /* Fill sector cache with file data */
glebiuskv 0:2f0e1e23c242 5508 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 5509 if (fp->flag & FA_DIRTY) { /* Write-back dirty sector cache */
glebiuskv 0:2f0e1e23c242 5510 if (disk_write(fs->pdrv, fp->buf, fp->sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5511 fp->flag &= (BYTE)~FA_DIRTY;
glebiuskv 0:2f0e1e23c242 5512 }
glebiuskv 0:2f0e1e23c242 5513 #endif
glebiuskv 0:2f0e1e23c242 5514 if (disk_read(fs->pdrv, fp->buf, sect, 1) != RES_OK) ABORT(fs, FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5515 }
glebiuskv 0:2f0e1e23c242 5516 dbuf = fp->buf;
glebiuskv 0:2f0e1e23c242 5517 #endif
glebiuskv 0:2f0e1e23c242 5518 fp->sect = sect;
glebiuskv 0:2f0e1e23c242 5519 rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
glebiuskv 0:2f0e1e23c242 5520 if (rcnt > btf) rcnt = btf; /* Clip it by btr if needed */
glebiuskv 0:2f0e1e23c242 5521 rcnt = (*func)(dbuf + ((UINT)fp->fptr % SS(fs)), rcnt); /* Forward the file data */
glebiuskv 0:2f0e1e23c242 5522 if (rcnt == 0) ABORT(fs, FR_INT_ERR);
glebiuskv 0:2f0e1e23c242 5523 }
glebiuskv 0:2f0e1e23c242 5524
glebiuskv 0:2f0e1e23c242 5525 LEAVE_FF(fs, FR_OK);
glebiuskv 0:2f0e1e23c242 5526 }
glebiuskv 0:2f0e1e23c242 5527 #endif /* FF_USE_FORWARD */
glebiuskv 0:2f0e1e23c242 5528
glebiuskv 0:2f0e1e23c242 5529
glebiuskv 0:2f0e1e23c242 5530
glebiuskv 0:2f0e1e23c242 5531 #if FF_USE_MKFS && !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 5532 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5533 /* Create an FAT/exFAT volume */
glebiuskv 0:2f0e1e23c242 5534 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5535
glebiuskv 0:2f0e1e23c242 5536 FRESULT f_mkfs (
glebiuskv 0:2f0e1e23c242 5537 const TCHAR* path, /* Logical drive number */
glebiuskv 0:2f0e1e23c242 5538 BYTE opt, /* Format option */
glebiuskv 0:2f0e1e23c242 5539 DWORD au, /* Size of allocation unit (cluster) [byte] */
glebiuskv 0:2f0e1e23c242 5540 void* work, /* Pointer to working buffer (null: use heap memory) */
glebiuskv 0:2f0e1e23c242 5541 UINT len /* Size of working buffer [byte] */
glebiuskv 0:2f0e1e23c242 5542 )
glebiuskv 0:2f0e1e23c242 5543 {
glebiuskv 0:2f0e1e23c242 5544 const UINT n_fats = 1; /* Number of FATs for FAT/FAT32 volume (1 or 2) */
glebiuskv 0:2f0e1e23c242 5545 const UINT n_rootdir = 512; /* Number of root directory entries for FAT volume */
glebiuskv 0:2f0e1e23c242 5546 static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */
glebiuskv 0:2f0e1e23c242 5547 static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */
glebiuskv 0:2f0e1e23c242 5548 BYTE fmt, sys, *buf, *pte, pdrv, part;
glebiuskv 0:2f0e1e23c242 5549 WORD ss; /* Sector size */
glebiuskv 0:2f0e1e23c242 5550 DWORD szb_buf, sz_buf, sz_blk, n_clst, pau, sect, nsect, n;
glebiuskv 0:2f0e1e23c242 5551 DWORD b_vol, b_fat, b_data; /* Base LBA for volume, fat, data */
glebiuskv 0:2f0e1e23c242 5552 DWORD sz_vol, sz_rsv, sz_fat, sz_dir; /* Size for volume, fat, dir, data */
glebiuskv 0:2f0e1e23c242 5553 UINT i;
glebiuskv 0:2f0e1e23c242 5554 int vol;
glebiuskv 0:2f0e1e23c242 5555 DSTATUS stat;
glebiuskv 0:2f0e1e23c242 5556 #if FF_USE_TRIM || FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5557 DWORD tbl[3];
glebiuskv 0:2f0e1e23c242 5558 #endif
glebiuskv 0:2f0e1e23c242 5559
glebiuskv 0:2f0e1e23c242 5560
glebiuskv 0:2f0e1e23c242 5561 /* Check mounted drive and clear work area */
glebiuskv 0:2f0e1e23c242 5562 vol = get_ldnumber(&path); /* Get target logical drive */
glebiuskv 0:2f0e1e23c242 5563 if (vol < 0) return FR_INVALID_DRIVE;
glebiuskv 0:2f0e1e23c242 5564 if (FatFs[vol]) FatFs[vol]->fs_type = 0; /* Clear the volume if mounted */
glebiuskv 0:2f0e1e23c242 5565 pdrv = LD2PD(vol); /* Physical drive */
glebiuskv 0:2f0e1e23c242 5566 part = LD2PT(vol); /* Partition (0:create as new, 1-4:get from partition table) */
glebiuskv 0:2f0e1e23c242 5567
glebiuskv 0:2f0e1e23c242 5568 /* Check physical drive status */
glebiuskv 0:2f0e1e23c242 5569 stat = disk_initialize(pdrv);
glebiuskv 0:2f0e1e23c242 5570 if (stat & STA_NOINIT) return FR_NOT_READY;
glebiuskv 0:2f0e1e23c242 5571 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
glebiuskv 0:2f0e1e23c242 5572 if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK || !sz_blk || sz_blk > 32768 || (sz_blk & (sz_blk - 1))) sz_blk = 1; /* Erase block to align data area */
glebiuskv 0:2f0e1e23c242 5573 #if FF_MAX_SS != FF_MIN_SS /* Get sector size of the medium if variable sector size cfg. */
glebiuskv 0:2f0e1e23c242 5574 if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 5575 if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 5576 #else
glebiuskv 0:2f0e1e23c242 5577 ss = FF_MAX_SS;
glebiuskv 0:2f0e1e23c242 5578 #endif
glebiuskv 0:2f0e1e23c242 5579 if ((au != 0 && au < ss) || au > 0x1000000 || (au & (au - 1))) return FR_INVALID_PARAMETER; /* Check if au is valid */
glebiuskv 0:2f0e1e23c242 5580 au /= ss; /* Cluster size in unit of sector */
glebiuskv 0:2f0e1e23c242 5581
glebiuskv 0:2f0e1e23c242 5582 /* Get working buffer */
glebiuskv 0:2f0e1e23c242 5583 #if FF_USE_LFN == 3 || FF_FS_HEAPBUF
glebiuskv 0:2f0e1e23c242 5584 if (!work) { /* Use heap memory for working buffer */
glebiuskv 0:2f0e1e23c242 5585 for (szb_buf = MAX_MALLOC, buf = 0; szb_buf >= ss && !(buf = (BYTE *)ff_memalloc(szb_buf)); szb_buf /= 2) ;
glebiuskv 0:2f0e1e23c242 5586 sz_buf = szb_buf / ss; /* Size of working buffer (sector) */
glebiuskv 0:2f0e1e23c242 5587 } else
glebiuskv 0:2f0e1e23c242 5588 #endif
glebiuskv 0:2f0e1e23c242 5589 {
glebiuskv 0:2f0e1e23c242 5590 buf = (BYTE*)work; /* Working buffer */
glebiuskv 0:2f0e1e23c242 5591 sz_buf = len / ss; /* Size of working buffer (sector) */
glebiuskv 0:2f0e1e23c242 5592 szb_buf = sz_buf * ss; /* Size of working buffer (byte) */
glebiuskv 0:2f0e1e23c242 5593 }
glebiuskv 0:2f0e1e23c242 5594 if (!buf || sz_buf == 0) return FR_NOT_ENOUGH_CORE;
glebiuskv 0:2f0e1e23c242 5595
glebiuskv 0:2f0e1e23c242 5596 /* Determine where the volume to be located (b_vol, sz_vol) */
glebiuskv 0:2f0e1e23c242 5597 if (FF_MULTI_PARTITION && part != 0) {
glebiuskv 0:2f0e1e23c242 5598 /* Get partition information from partition table in the MBR */
glebiuskv 0:2f0e1e23c242 5599 if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Load MBR */
glebiuskv 0:2f0e1e23c242 5600 if (ld_word(buf + BS_55AA) != 0xAA55) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if MBR is valid */
glebiuskv 0:2f0e1e23c242 5601 pte = buf + (MBR_Table + (part - 1) * SZ_PTE);
glebiuskv 0:2f0e1e23c242 5602 if (pte[PTE_System] == 0) LEAVE_MKFS(FR_MKFS_ABORTED); /* No partition? */
glebiuskv 0:2f0e1e23c242 5603 b_vol = ld_dword(pte + PTE_StLba); /* Get volume start sector */
glebiuskv 0:2f0e1e23c242 5604 sz_vol = ld_dword(pte + PTE_SizLba); /* Get volume size */
glebiuskv 0:2f0e1e23c242 5605 } else {
glebiuskv 0:2f0e1e23c242 5606 /* Create a single-partition in this function */
glebiuskv 0:2f0e1e23c242 5607 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5608 b_vol = (opt & FM_SFD) ? 0 : 63; /* Volume start sector */
glebiuskv 0:2f0e1e23c242 5609 if (sz_vol < b_vol) LEAVE_MKFS(FR_MKFS_ABORTED);
glebiuskv 0:2f0e1e23c242 5610 sz_vol -= b_vol; /* Volume size */
glebiuskv 0:2f0e1e23c242 5611 }
glebiuskv 0:2f0e1e23c242 5612 if (sz_vol < 128) LEAVE_MKFS(FR_MKFS_ABORTED); /* Check if volume size is >=128s */
glebiuskv 0:2f0e1e23c242 5613
glebiuskv 0:2f0e1e23c242 5614 /* Pre-determine the FAT type */
glebiuskv 0:2f0e1e23c242 5615 do {
glebiuskv 0:2f0e1e23c242 5616 if (FF_FS_EXFAT && (opt & FM_EXFAT)) { /* exFAT possible? */
glebiuskv 0:2f0e1e23c242 5617 if ((opt & FM_ANY) == FM_EXFAT || sz_vol >= 0x4000000 || au > 128) { /* exFAT only, vol >= 64Ms or au > 128s ? */
glebiuskv 0:2f0e1e23c242 5618 fmt = FS_EXFAT; break;
glebiuskv 0:2f0e1e23c242 5619 }
glebiuskv 0:2f0e1e23c242 5620 }
glebiuskv 0:2f0e1e23c242 5621 if (au > 128) LEAVE_MKFS(FR_INVALID_PARAMETER); /* Too large au for FAT/FAT32 */
glebiuskv 0:2f0e1e23c242 5622 if (opt & FM_FAT32) { /* FAT32 possible? */
glebiuskv 0:2f0e1e23c242 5623 if ((opt & FM_ANY) == FM_FAT32 || !(opt & FM_FAT)) { /* FAT32 only or no-FAT? */
glebiuskv 0:2f0e1e23c242 5624 fmt = FS_FAT32; break;
glebiuskv 0:2f0e1e23c242 5625 }
glebiuskv 0:2f0e1e23c242 5626 }
glebiuskv 0:2f0e1e23c242 5627 if (!(opt & FM_FAT)) LEAVE_MKFS(FR_INVALID_PARAMETER); /* no-FAT? */
glebiuskv 0:2f0e1e23c242 5628 fmt = FS_FAT16;
glebiuskv 0:2f0e1e23c242 5629 } while (0);
glebiuskv 0:2f0e1e23c242 5630
glebiuskv 0:2f0e1e23c242 5631 #if FF_FS_EXFAT
glebiuskv 0:2f0e1e23c242 5632 if (fmt == FS_EXFAT) { /* Create an exFAT volume */
glebiuskv 0:2f0e1e23c242 5633 DWORD szb_bit, szb_case, sum, nb, cl;
glebiuskv 0:2f0e1e23c242 5634 WCHAR ch, si;
glebiuskv 0:2f0e1e23c242 5635 UINT j, st;
glebiuskv 0:2f0e1e23c242 5636 BYTE b;
glebiuskv 0:2f0e1e23c242 5637
glebiuskv 0:2f0e1e23c242 5638 if (sz_vol < 0x1000) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */
glebiuskv 0:2f0e1e23c242 5639 #if FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 5640 tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area may be erased */
glebiuskv 0:2f0e1e23c242 5641 disk_ioctl(pdrv, CTRL_TRIM, tbl);
glebiuskv 0:2f0e1e23c242 5642 #endif
glebiuskv 0:2f0e1e23c242 5643 /* Determine FAT location, data location and number of clusters */
glebiuskv 0:2f0e1e23c242 5644 if (au == 0) { /* au auto-selection */
glebiuskv 0:2f0e1e23c242 5645 au = 8;
glebiuskv 0:2f0e1e23c242 5646 if (sz_vol >= 0x80000) au = 64; /* >= 512Ks */
glebiuskv 0:2f0e1e23c242 5647 if (sz_vol >= 0x4000000) au = 256; /* >= 64Ms */
glebiuskv 0:2f0e1e23c242 5648 }
glebiuskv 0:2f0e1e23c242 5649 b_fat = b_vol + 32; /* FAT start at offset 32 */
glebiuskv 0:2f0e1e23c242 5650 sz_fat = ((sz_vol / au + 2) * 4 + ss - 1) / ss; /* Number of FAT sectors */
glebiuskv 0:2f0e1e23c242 5651 b_data = (b_fat + sz_fat + sz_blk - 1) & ~(sz_blk - 1); /* Align data area to the erase block boundary */
glebiuskv 0:2f0e1e23c242 5652 if (b_data >= sz_vol / 2) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume? */
glebiuskv 0:2f0e1e23c242 5653 n_clst = (sz_vol - (b_data - b_vol)) / au; /* Number of clusters */
glebiuskv 0:2f0e1e23c242 5654 if (n_clst <16) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too few clusters? */
glebiuskv 0:2f0e1e23c242 5655 if (n_clst > MAX_EXFAT) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters? */
glebiuskv 0:2f0e1e23c242 5656
glebiuskv 0:2f0e1e23c242 5657 szb_bit = (n_clst + 7) / 8; /* Size of allocation bitmap */
glebiuskv 0:2f0e1e23c242 5658 tbl[0] = (szb_bit + au * ss - 1) / (au * ss); /* Number of allocation bitmap clusters */
glebiuskv 0:2f0e1e23c242 5659
glebiuskv 0:2f0e1e23c242 5660 /* Create a compressed up-case table */
glebiuskv 0:2f0e1e23c242 5661 sect = b_data + au * tbl[0]; /* Table start sector */
glebiuskv 0:2f0e1e23c242 5662 sum = 0; /* Table checksum to be stored in the 82 entry */
glebiuskv 0:2f0e1e23c242 5663 st = si = i = j = szb_case = 0;
glebiuskv 0:2f0e1e23c242 5664 do {
glebiuskv 0:2f0e1e23c242 5665 switch (st) {
glebiuskv 0:2f0e1e23c242 5666 case 0:
glebiuskv 0:2f0e1e23c242 5667 ch = (WCHAR)ff_wtoupper(si); /* Get an up-case char */
glebiuskv 0:2f0e1e23c242 5668 if (ch != si) {
glebiuskv 0:2f0e1e23c242 5669 si++; break; /* Store the up-case char if exist */
glebiuskv 0:2f0e1e23c242 5670 }
glebiuskv 0:2f0e1e23c242 5671 for (j = 1; (WCHAR)(si + j) && (WCHAR)(si + j) == ff_wtoupper((WCHAR)(si + j)); j++) ; /* Get run length of no-case block */
glebiuskv 0:2f0e1e23c242 5672 if (j >= 128) {
glebiuskv 0:2f0e1e23c242 5673 ch = 0xFFFF; st = 2; break; /* Compress the no-case block if run is >= 128 */
glebiuskv 0:2f0e1e23c242 5674 }
glebiuskv 0:2f0e1e23c242 5675 st = 1; /* Do not compress short run */
glebiuskv 0:2f0e1e23c242 5676 /* go to next case */
glebiuskv 0:2f0e1e23c242 5677 case 1:
glebiuskv 0:2f0e1e23c242 5678 ch = si++; /* Fill the short run */
glebiuskv 0:2f0e1e23c242 5679 if (--j == 0) st = 0;
glebiuskv 0:2f0e1e23c242 5680 break;
glebiuskv 0:2f0e1e23c242 5681
glebiuskv 0:2f0e1e23c242 5682 default:
glebiuskv 0:2f0e1e23c242 5683 ch = (WCHAR)j; si += j; /* Number of chars to skip */
glebiuskv 0:2f0e1e23c242 5684 st = 0;
glebiuskv 0:2f0e1e23c242 5685 }
glebiuskv 0:2f0e1e23c242 5686 sum = xsum32(buf[i + 0] = (BYTE)ch, sum); /* Put it into the write buffer */
glebiuskv 0:2f0e1e23c242 5687 sum = xsum32(buf[i + 1] = (BYTE)(ch >> 8), sum);
glebiuskv 0:2f0e1e23c242 5688 i += 2; szb_case += 2;
glebiuskv 0:2f0e1e23c242 5689 if (si == 0 || i == szb_buf) { /* Write buffered data when buffer full or end of process */
glebiuskv 0:2f0e1e23c242 5690 n = (i + ss - 1) / ss;
glebiuskv 0:2f0e1e23c242 5691 if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5692 sect += n; i = 0;
glebiuskv 0:2f0e1e23c242 5693 }
glebiuskv 0:2f0e1e23c242 5694 } while (si);
glebiuskv 0:2f0e1e23c242 5695 tbl[1] = (szb_case + au * ss - 1) / (au * ss); /* Number of up-case table clusters */
glebiuskv 0:2f0e1e23c242 5696 tbl[2] = 1; /* Number of root dir clusters */
glebiuskv 0:2f0e1e23c242 5697
glebiuskv 0:2f0e1e23c242 5698 /* Initialize the allocation bitmap */
glebiuskv 0:2f0e1e23c242 5699 sect = b_data; nsect = (szb_bit + ss - 1) / ss; /* Start of bitmap and number of sectors */
glebiuskv 0:2f0e1e23c242 5700 nb = tbl[0] + tbl[1] + tbl[2]; /* Number of clusters in-use by system */
glebiuskv 0:2f0e1e23c242 5701 do {
glebiuskv 0:2f0e1e23c242 5702 mem_set(buf, 0, szb_buf);
glebiuskv 0:2f0e1e23c242 5703 for (i = 0; nb >= 8 && i < szb_buf; buf[i++] = 0xFF, nb -= 8) ;
glebiuskv 0:2f0e1e23c242 5704 for (b = 1; nb != 0 && i < szb_buf; buf[i] |= b, b <<= 1, nb--) ;
glebiuskv 0:2f0e1e23c242 5705 n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */
glebiuskv 0:2f0e1e23c242 5706 if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5707 sect += n; nsect -= n;
glebiuskv 0:2f0e1e23c242 5708 } while (nsect);
glebiuskv 0:2f0e1e23c242 5709
glebiuskv 0:2f0e1e23c242 5710 /* Initialize the FAT */
glebiuskv 0:2f0e1e23c242 5711 sect = b_fat; nsect = sz_fat; /* Start of FAT and number of FAT sectors */
glebiuskv 0:2f0e1e23c242 5712 j = nb = cl = 0;
glebiuskv 0:2f0e1e23c242 5713 do {
glebiuskv 0:2f0e1e23c242 5714 mem_set(buf, 0, szb_buf); i = 0; /* Clear work area and reset write index */
glebiuskv 0:2f0e1e23c242 5715 if (cl == 0) { /* Set entry 0 and 1 */
glebiuskv 0:2f0e1e23c242 5716 st_dword(buf + i, 0xFFFFFFF8); i += 4; cl++;
glebiuskv 0:2f0e1e23c242 5717 st_dword(buf + i, 0xFFFFFFFF); i += 4; cl++;
glebiuskv 0:2f0e1e23c242 5718 }
glebiuskv 0:2f0e1e23c242 5719 do { /* Create chains of bitmap, up-case and root dir */
glebiuskv 0:2f0e1e23c242 5720 while (nb != 0 && i < szb_buf) { /* Create a chain */
glebiuskv 0:2f0e1e23c242 5721 st_dword(buf + i, (nb > 1) ? cl + 1 : 0xFFFFFFFF);
glebiuskv 0:2f0e1e23c242 5722 i += 4; cl++; nb--;
glebiuskv 0:2f0e1e23c242 5723 }
glebiuskv 0:2f0e1e23c242 5724 if (nb == 0 && j < 3) nb = tbl[j++]; /* Next chain */
glebiuskv 0:2f0e1e23c242 5725 } while (nb != 0 && i < szb_buf);
glebiuskv 0:2f0e1e23c242 5726 n = (nsect > sz_buf) ? sz_buf : nsect; /* Write the buffered data */
glebiuskv 0:2f0e1e23c242 5727 if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5728 sect += n; nsect -= n;
glebiuskv 0:2f0e1e23c242 5729 } while (nsect);
glebiuskv 0:2f0e1e23c242 5730
glebiuskv 0:2f0e1e23c242 5731 /* Initialize the root directory */
glebiuskv 0:2f0e1e23c242 5732 mem_set(buf, 0, szb_buf);
glebiuskv 0:2f0e1e23c242 5733 buf[SZDIRE * 0 + 0] = 0x83; /* 83 entry (volume label) */
glebiuskv 0:2f0e1e23c242 5734 buf[SZDIRE * 1 + 0] = 0x81; /* 81 entry (allocation bitmap) */
glebiuskv 0:2f0e1e23c242 5735 st_dword(buf + SZDIRE * 1 + 20, 2);
glebiuskv 0:2f0e1e23c242 5736 st_dword(buf + SZDIRE * 1 + 24, szb_bit);
glebiuskv 0:2f0e1e23c242 5737 buf[SZDIRE * 2 + 0] = 0x82; /* 82 entry (up-case table) */
glebiuskv 0:2f0e1e23c242 5738 st_dword(buf + SZDIRE * 2 + 4, sum);
glebiuskv 0:2f0e1e23c242 5739 st_dword(buf + SZDIRE * 2 + 20, 2 + tbl[0]);
glebiuskv 0:2f0e1e23c242 5740 st_dword(buf + SZDIRE * 2 + 24, szb_case);
glebiuskv 0:2f0e1e23c242 5741 sect = b_data + au * (tbl[0] + tbl[1]); nsect = au; /* Start of the root directory and number of sectors */
glebiuskv 0:2f0e1e23c242 5742 do { /* Fill root directory sectors */
glebiuskv 0:2f0e1e23c242 5743 n = (nsect > sz_buf) ? sz_buf : nsect;
glebiuskv 0:2f0e1e23c242 5744 if (disk_write(pdrv, buf, sect, n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5745 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5746 sect += n; nsect -= n;
glebiuskv 0:2f0e1e23c242 5747 } while (nsect);
glebiuskv 0:2f0e1e23c242 5748
glebiuskv 0:2f0e1e23c242 5749 /* Create two set of the exFAT VBR blocks */
glebiuskv 0:2f0e1e23c242 5750 sect = b_vol;
glebiuskv 0:2f0e1e23c242 5751 for (n = 0; n < 2; n++) {
glebiuskv 0:2f0e1e23c242 5752 /* Main record (+0) */
glebiuskv 0:2f0e1e23c242 5753 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5754 mem_cpy(buf + BS_JmpBoot, "\xEB\x76\x90" "EXFAT ", 11); /* Boot jump code (x86), OEM name */
glebiuskv 0:2f0e1e23c242 5755 st_dword(buf + BPB_VolOfsEx, b_vol); /* Volume offset in the physical drive [sector] */
glebiuskv 0:2f0e1e23c242 5756 st_dword(buf + BPB_TotSecEx, sz_vol); /* Volume size [sector] */
glebiuskv 0:2f0e1e23c242 5757 st_dword(buf + BPB_FatOfsEx, b_fat - b_vol); /* FAT offset [sector] */
glebiuskv 0:2f0e1e23c242 5758 st_dword(buf + BPB_FatSzEx, sz_fat); /* FAT size [sector] */
glebiuskv 0:2f0e1e23c242 5759 st_dword(buf + BPB_DataOfsEx, b_data - b_vol); /* Data offset [sector] */
glebiuskv 0:2f0e1e23c242 5760 st_dword(buf + BPB_NumClusEx, n_clst); /* Number of clusters */
glebiuskv 0:2f0e1e23c242 5761 st_dword(buf + BPB_RootClusEx, 2 + tbl[0] + tbl[1]); /* Root dir cluster # */
glebiuskv 0:2f0e1e23c242 5762 st_dword(buf + BPB_VolIDEx, GET_FATTIME()); /* VSN */
glebiuskv 0:2f0e1e23c242 5763 st_word(buf + BPB_FSVerEx, 0x100); /* Filesystem version (1.00) */
glebiuskv 0:2f0e1e23c242 5764 for (buf[BPB_BytsPerSecEx] = 0, i = ss; i >>= 1; buf[BPB_BytsPerSecEx]++) ; /* Log2 of sector size [byte] */
glebiuskv 0:2f0e1e23c242 5765 for (buf[BPB_SecPerClusEx] = 0, i = au; i >>= 1; buf[BPB_SecPerClusEx]++) ; /* Log2 of cluster size [sector] */
glebiuskv 0:2f0e1e23c242 5766 buf[BPB_NumFATsEx] = 1; /* Number of FATs */
glebiuskv 0:2f0e1e23c242 5767 buf[BPB_DrvNumEx] = 0x80; /* Drive number (for int13) */
glebiuskv 0:2f0e1e23c242 5768 st_word(buf + BS_BootCodeEx, 0xFEEB); /* Boot code (x86) */
glebiuskv 0:2f0e1e23c242 5769 st_word(buf + BS_55AA, 0xAA55); /* Signature (placed here regardless of sector size) */
glebiuskv 0:2f0e1e23c242 5770 for (i = sum = 0; i < ss; i++) { /* VBR checksum */
glebiuskv 0:2f0e1e23c242 5771 if (i != BPB_VolFlagEx && i != BPB_VolFlagEx + 1 && i != BPB_PercInUseEx) sum = xsum32(buf[i], sum);
glebiuskv 0:2f0e1e23c242 5772 }
glebiuskv 0:2f0e1e23c242 5773 if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5774 /* Extended bootstrap record (+1..+8) */
glebiuskv 0:2f0e1e23c242 5775 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5776 st_word(buf + ss - 2, 0xAA55); /* Signature (placed at end of sector) */
glebiuskv 0:2f0e1e23c242 5777 for (j = 1; j < 9; j++) {
glebiuskv 0:2f0e1e23c242 5778 for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */
glebiuskv 0:2f0e1e23c242 5779 if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5780 }
glebiuskv 0:2f0e1e23c242 5781 /* OEM/Reserved record (+9..+10) */
glebiuskv 0:2f0e1e23c242 5782 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5783 for ( ; j < 11; j++) {
glebiuskv 0:2f0e1e23c242 5784 for (i = 0; i < ss; sum = xsum32(buf[i++], sum)) ; /* VBR checksum */
glebiuskv 0:2f0e1e23c242 5785 if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5786 }
glebiuskv 0:2f0e1e23c242 5787 /* Sum record (+11) */
glebiuskv 0:2f0e1e23c242 5788 for (i = 0; i < ss; i += 4) st_dword(buf + i, sum); /* Fill with checksum value */
glebiuskv 0:2f0e1e23c242 5789 if (disk_write(pdrv, buf, sect++, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5790 }
glebiuskv 0:2f0e1e23c242 5791
glebiuskv 0:2f0e1e23c242 5792 } else
glebiuskv 0:2f0e1e23c242 5793 #endif /* FF_FS_EXFAT */
glebiuskv 0:2f0e1e23c242 5794 { /* Create an FAT/FAT32 volume */
glebiuskv 0:2f0e1e23c242 5795 do {
glebiuskv 0:2f0e1e23c242 5796 pau = au;
glebiuskv 0:2f0e1e23c242 5797 /* Pre-determine number of clusters and FAT sub-type */
glebiuskv 0:2f0e1e23c242 5798 if (fmt == FS_FAT32) { /* FAT32 volume */
glebiuskv 0:2f0e1e23c242 5799 if (pau == 0) { /* au auto-selection */
glebiuskv 0:2f0e1e23c242 5800 n = sz_vol / 0x20000; /* Volume size in unit of 128KS */
glebiuskv 0:2f0e1e23c242 5801 for (i = 0, pau = 1; cst32[i] && cst32[i] <= n; i++, pau <<= 1) ; /* Get from table */
glebiuskv 0:2f0e1e23c242 5802 }
glebiuskv 0:2f0e1e23c242 5803 n_clst = sz_vol / pau; /* Number of clusters */
glebiuskv 0:2f0e1e23c242 5804 sz_fat = (n_clst * 4 + 8 + ss - 1) / ss; /* FAT size [sector] */
glebiuskv 0:2f0e1e23c242 5805 sz_rsv = 32; /* Number of reserved sectors */
glebiuskv 0:2f0e1e23c242 5806 sz_dir = 0; /* No static directory */
glebiuskv 0:2f0e1e23c242 5807 if (n_clst <= MAX_FAT16 || n_clst > MAX_FAT32) LEAVE_MKFS(FR_MKFS_ABORTED);
glebiuskv 0:2f0e1e23c242 5808 } else { /* FAT volume */
glebiuskv 0:2f0e1e23c242 5809 if (pau == 0) { /* au auto-selection */
glebiuskv 0:2f0e1e23c242 5810 n = sz_vol / 0x1000; /* Volume size in unit of 4KS */
glebiuskv 0:2f0e1e23c242 5811 for (i = 0, pau = 1; cst[i] && cst[i] <= n; i++, pau <<= 1) ; /* Get from table */
glebiuskv 0:2f0e1e23c242 5812 }
glebiuskv 0:2f0e1e23c242 5813 n_clst = sz_vol / pau;
glebiuskv 0:2f0e1e23c242 5814 if (n_clst > MAX_FAT12) {
glebiuskv 0:2f0e1e23c242 5815 n = n_clst * 2 + 4; /* FAT size [byte] */
glebiuskv 0:2f0e1e23c242 5816 } else {
glebiuskv 0:2f0e1e23c242 5817 fmt = FS_FAT12;
glebiuskv 0:2f0e1e23c242 5818 n = (n_clst * 3 + 1) / 2 + 3; /* FAT size [byte] */
glebiuskv 0:2f0e1e23c242 5819 }
glebiuskv 0:2f0e1e23c242 5820 sz_fat = (n + ss - 1) / ss; /* FAT size [sector] */
glebiuskv 0:2f0e1e23c242 5821 sz_rsv = 1; /* Number of reserved sectors */
glebiuskv 0:2f0e1e23c242 5822 sz_dir = (DWORD)n_rootdir * SZDIRE / ss; /* Rootdir size [sector] */
glebiuskv 0:2f0e1e23c242 5823 }
glebiuskv 0:2f0e1e23c242 5824 b_fat = b_vol + sz_rsv; /* FAT base */
glebiuskv 0:2f0e1e23c242 5825 b_data = b_fat + sz_fat * n_fats + sz_dir; /* Data base */
glebiuskv 0:2f0e1e23c242 5826
glebiuskv 0:2f0e1e23c242 5827 /* Align data base to erase block boundary (for flash memory media) */
glebiuskv 0:2f0e1e23c242 5828 n = ((b_data + sz_blk - 1) & ~(sz_blk - 1)) - b_data; /* Next nearest erase block from current data base */
glebiuskv 0:2f0e1e23c242 5829 if (fmt == FS_FAT32) { /* FAT32: Move FAT base */
glebiuskv 0:2f0e1e23c242 5830 sz_rsv += n; b_fat += n;
glebiuskv 0:2f0e1e23c242 5831 } else { /* FAT: Expand FAT size */
glebiuskv 0:2f0e1e23c242 5832 sz_fat += n / n_fats;
glebiuskv 0:2f0e1e23c242 5833 }
glebiuskv 0:2f0e1e23c242 5834
glebiuskv 0:2f0e1e23c242 5835 /* Determine number of clusters and final check of validity of the FAT sub-type */
glebiuskv 0:2f0e1e23c242 5836 if (sz_vol < b_data + pau * 16 - b_vol) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too small volume */
glebiuskv 0:2f0e1e23c242 5837 n_clst = (sz_vol - sz_rsv - sz_fat * n_fats - sz_dir) / pau;
glebiuskv 0:2f0e1e23c242 5838 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 5839 if (n_clst <= MAX_FAT16) { /* Too few clusters for FAT32 */
glebiuskv 0:2f0e1e23c242 5840 if (au == 0 && (au = pau / 2) != 0) continue; /* Adjust cluster size and retry */
glebiuskv 0:2f0e1e23c242 5841 LEAVE_MKFS(FR_MKFS_ABORTED);
glebiuskv 0:2f0e1e23c242 5842 }
glebiuskv 0:2f0e1e23c242 5843 }
glebiuskv 0:2f0e1e23c242 5844 if (fmt == FS_FAT16) {
glebiuskv 0:2f0e1e23c242 5845 if (n_clst > MAX_FAT16) { /* Too many clusters for FAT16 */
glebiuskv 0:2f0e1e23c242 5846 if (au == 0 && (pau * 2) <= 64) {
glebiuskv 0:2f0e1e23c242 5847 au = pau * 2; continue; /* Adjust cluster size and retry */
glebiuskv 0:2f0e1e23c242 5848 }
glebiuskv 0:2f0e1e23c242 5849 if ((opt & FM_FAT32)) {
glebiuskv 0:2f0e1e23c242 5850 fmt = FS_FAT32; continue; /* Switch type to FAT32 and retry */
glebiuskv 0:2f0e1e23c242 5851 }
glebiuskv 0:2f0e1e23c242 5852 if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */
glebiuskv 0:2f0e1e23c242 5853 LEAVE_MKFS(FR_MKFS_ABORTED);
glebiuskv 0:2f0e1e23c242 5854 }
glebiuskv 0:2f0e1e23c242 5855 if (n_clst <= MAX_FAT12) { /* Too few clusters for FAT16 */
glebiuskv 0:2f0e1e23c242 5856 if (au == 0 && (au = pau * 2) <= 128) continue; /* Adjust cluster size and retry */
glebiuskv 0:2f0e1e23c242 5857 LEAVE_MKFS(FR_MKFS_ABORTED);
glebiuskv 0:2f0e1e23c242 5858 }
glebiuskv 0:2f0e1e23c242 5859 }
glebiuskv 0:2f0e1e23c242 5860 if (fmt == FS_FAT12 && n_clst > MAX_FAT12) LEAVE_MKFS(FR_MKFS_ABORTED); /* Too many clusters for FAT12 */
glebiuskv 0:2f0e1e23c242 5861
glebiuskv 0:2f0e1e23c242 5862 /* Ok, it is the valid cluster configuration */
glebiuskv 0:2f0e1e23c242 5863 break;
glebiuskv 0:2f0e1e23c242 5864 } while (1);
glebiuskv 0:2f0e1e23c242 5865
glebiuskv 0:2f0e1e23c242 5866 #if FF_USE_TRIM
glebiuskv 0:2f0e1e23c242 5867 tbl[0] = b_vol; tbl[1] = b_vol + sz_vol - 1; /* Inform the device the volume area can be erased */
glebiuskv 0:2f0e1e23c242 5868 disk_ioctl(pdrv, CTRL_TRIM, tbl);
glebiuskv 0:2f0e1e23c242 5869 #endif
glebiuskv 0:2f0e1e23c242 5870 /* Create FAT VBR */
glebiuskv 0:2f0e1e23c242 5871 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5872 mem_cpy(buf + BS_JmpBoot, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code (x86), OEM name */
glebiuskv 0:2f0e1e23c242 5873 st_word(buf + BPB_BytsPerSec, ss); /* Sector size [byte] */
glebiuskv 0:2f0e1e23c242 5874 buf[BPB_SecPerClus] = (BYTE)pau; /* Cluster size [sector] */
glebiuskv 0:2f0e1e23c242 5875 st_word(buf + BPB_RsvdSecCnt, (WORD)sz_rsv); /* Size of reserved area */
glebiuskv 0:2f0e1e23c242 5876 buf[BPB_NumFATs] = (BYTE)n_fats; /* Number of FATs */
glebiuskv 0:2f0e1e23c242 5877 st_word(buf + BPB_RootEntCnt, (WORD)((fmt == FS_FAT32) ? 0 : n_rootdir)); /* Number of root directory entries */
glebiuskv 0:2f0e1e23c242 5878 if (sz_vol < 0x10000) {
glebiuskv 0:2f0e1e23c242 5879 st_word(buf + BPB_TotSec16, (WORD)sz_vol); /* Volume size in 16-bit LBA */
glebiuskv 0:2f0e1e23c242 5880 } else {
glebiuskv 0:2f0e1e23c242 5881 st_dword(buf + BPB_TotSec32, sz_vol); /* Volume size in 32-bit LBA */
glebiuskv 0:2f0e1e23c242 5882 }
glebiuskv 0:2f0e1e23c242 5883 buf[BPB_Media] = 0xF8; /* Media descriptor byte */
glebiuskv 0:2f0e1e23c242 5884 st_word(buf + BPB_SecPerTrk, 63); /* Number of sectors per track (for int13) */
glebiuskv 0:2f0e1e23c242 5885 st_word(buf + BPB_NumHeads, 255); /* Number of heads (for int13) */
glebiuskv 0:2f0e1e23c242 5886 st_dword(buf + BPB_HiddSec, b_vol); /* Volume offset in the physical drive [sector] */
glebiuskv 0:2f0e1e23c242 5887 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 5888 st_dword(buf + BS_VolID32, GET_FATTIME()); /* VSN */
glebiuskv 0:2f0e1e23c242 5889 st_dword(buf + BPB_FATSz32, sz_fat); /* FAT size [sector] */
glebiuskv 0:2f0e1e23c242 5890 st_dword(buf + BPB_RootClus32, 2); /* Root directory cluster # (2) */
glebiuskv 0:2f0e1e23c242 5891 st_word(buf + BPB_FSInfo32, 1); /* Offset of FSINFO sector (VBR + 1) */
glebiuskv 0:2f0e1e23c242 5892 st_word(buf + BPB_BkBootSec32, 6); /* Offset of backup VBR (VBR + 6) */
glebiuskv 0:2f0e1e23c242 5893 buf[BS_DrvNum32] = 0x80; /* Drive number (for int13) */
glebiuskv 0:2f0e1e23c242 5894 buf[BS_BootSig32] = 0x29; /* Extended boot signature */
glebiuskv 0:2f0e1e23c242 5895 mem_cpy(buf + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
glebiuskv 0:2f0e1e23c242 5896 } else {
glebiuskv 0:2f0e1e23c242 5897 st_dword(buf + BS_VolID, GET_FATTIME()); /* VSN */
glebiuskv 0:2f0e1e23c242 5898 st_word(buf + BPB_FATSz16, (WORD)sz_fat); /* FAT size [sector] */
glebiuskv 0:2f0e1e23c242 5899 buf[BS_DrvNum] = 0x80; /* Drive number (for int13) */
glebiuskv 0:2f0e1e23c242 5900 buf[BS_BootSig] = 0x29; /* Extended boot signature */
glebiuskv 0:2f0e1e23c242 5901 mem_cpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
glebiuskv 0:2f0e1e23c242 5902 }
glebiuskv 0:2f0e1e23c242 5903 st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */
glebiuskv 0:2f0e1e23c242 5904 if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */
glebiuskv 0:2f0e1e23c242 5905
glebiuskv 0:2f0e1e23c242 5906 /* Create FSINFO record if needed */
glebiuskv 0:2f0e1e23c242 5907 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 5908 disk_write(pdrv, buf, b_vol + 6, 1); /* Write backup VBR (VBR + 6) */
glebiuskv 0:2f0e1e23c242 5909 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5910 st_dword(buf + FSI_LeadSig, 0x41615252);
glebiuskv 0:2f0e1e23c242 5911 st_dword(buf + FSI_StrucSig, 0x61417272);
glebiuskv 0:2f0e1e23c242 5912 st_dword(buf + FSI_Free_Count, n_clst - 1); /* Number of free clusters */
glebiuskv 0:2f0e1e23c242 5913 st_dword(buf + FSI_Nxt_Free, 2); /* Last allocated cluster# */
glebiuskv 0:2f0e1e23c242 5914 st_word(buf + BS_55AA, 0xAA55);
glebiuskv 0:2f0e1e23c242 5915 disk_write(pdrv, buf, b_vol + 7, 1); /* Write backup FSINFO (VBR + 7) */
glebiuskv 0:2f0e1e23c242 5916 disk_write(pdrv, buf, b_vol + 1, 1); /* Write original FSINFO (VBR + 1) */
glebiuskv 0:2f0e1e23c242 5917 }
glebiuskv 0:2f0e1e23c242 5918
glebiuskv 0:2f0e1e23c242 5919 /* Initialize FAT area */
glebiuskv 0:2f0e1e23c242 5920 mem_set(buf, 0, (UINT)szb_buf);
glebiuskv 0:2f0e1e23c242 5921 sect = b_fat; /* FAT start sector */
glebiuskv 0:2f0e1e23c242 5922 for (i = 0; i < n_fats; i++) { /* Initialize FATs each */
glebiuskv 0:2f0e1e23c242 5923 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 5924 st_dword(buf + 0, 0xFFFFFFF8); /* Entry 0 */
glebiuskv 0:2f0e1e23c242 5925 st_dword(buf + 4, 0xFFFFFFFF); /* Entry 1 */
glebiuskv 0:2f0e1e23c242 5926 st_dword(buf + 8, 0x0FFFFFFF); /* Entry 2 (root directory) */
glebiuskv 0:2f0e1e23c242 5927 } else {
glebiuskv 0:2f0e1e23c242 5928 st_dword(buf + 0, (fmt == FS_FAT12) ? 0xFFFFF8 : 0xFFFFFFF8); /* Entry 0 and 1 */
glebiuskv 0:2f0e1e23c242 5929 }
glebiuskv 0:2f0e1e23c242 5930 nsect = sz_fat; /* Number of FAT sectors */
glebiuskv 0:2f0e1e23c242 5931 do { /* Fill FAT sectors */
glebiuskv 0:2f0e1e23c242 5932 n = (nsect > sz_buf) ? sz_buf : nsect;
glebiuskv 0:2f0e1e23c242 5933 if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5934 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5935 sect += n; nsect -= n;
glebiuskv 0:2f0e1e23c242 5936 } while (nsect);
glebiuskv 0:2f0e1e23c242 5937 }
glebiuskv 0:2f0e1e23c242 5938
glebiuskv 0:2f0e1e23c242 5939 /* Initialize root directory (fill with zero) */
glebiuskv 0:2f0e1e23c242 5940 nsect = (fmt == FS_FAT32) ? pau : sz_dir; /* Number of root directory sectors */
glebiuskv 0:2f0e1e23c242 5941 do {
glebiuskv 0:2f0e1e23c242 5942 n = (nsect > sz_buf) ? sz_buf : nsect;
glebiuskv 0:2f0e1e23c242 5943 if (disk_write(pdrv, buf, sect, (UINT)n) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5944 sect += n; nsect -= n;
glebiuskv 0:2f0e1e23c242 5945 } while (nsect);
glebiuskv 0:2f0e1e23c242 5946 }
glebiuskv 0:2f0e1e23c242 5947
glebiuskv 0:2f0e1e23c242 5948 /* Determine system ID in the partition table */
glebiuskv 0:2f0e1e23c242 5949 if (FF_FS_EXFAT && fmt == FS_EXFAT) {
glebiuskv 0:2f0e1e23c242 5950 sys = 0x07; /* HPFS/NTFS/exFAT */
glebiuskv 0:2f0e1e23c242 5951 } else {
glebiuskv 0:2f0e1e23c242 5952 if (fmt == FS_FAT32) {
glebiuskv 0:2f0e1e23c242 5953 sys = 0x0C; /* FAT32X */
glebiuskv 0:2f0e1e23c242 5954 } else {
glebiuskv 0:2f0e1e23c242 5955 if (sz_vol >= 0x10000) {
glebiuskv 0:2f0e1e23c242 5956 sys = 0x06; /* FAT12/16 (large) */
glebiuskv 0:2f0e1e23c242 5957 } else {
glebiuskv 0:2f0e1e23c242 5958 sys = (fmt == FS_FAT16) ? 0x04 : 0x01; /* FAT16 : FAT12 */
glebiuskv 0:2f0e1e23c242 5959 }
glebiuskv 0:2f0e1e23c242 5960 }
glebiuskv 0:2f0e1e23c242 5961 }
glebiuskv 0:2f0e1e23c242 5962
glebiuskv 0:2f0e1e23c242 5963 /* Update partition information */
glebiuskv 0:2f0e1e23c242 5964 if (FF_MULTI_PARTITION && part != 0) { /* Created in the existing partition */
glebiuskv 0:2f0e1e23c242 5965 /* Update system ID in the partition table */
glebiuskv 0:2f0e1e23c242 5966 if (disk_read(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Read the MBR */
glebiuskv 0:2f0e1e23c242 5967 buf[MBR_Table + (part - 1) * SZ_PTE + PTE_System] = sys; /* Set system ID */
glebiuskv 0:2f0e1e23c242 5968 if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it back to the MBR */
glebiuskv 0:2f0e1e23c242 5969 } else { /* Created as a new single partition */
glebiuskv 0:2f0e1e23c242 5970 if (!(opt & FM_SFD)) { /* Create partition table if in FDISK format */
glebiuskv 0:2f0e1e23c242 5971 mem_set(buf, 0, ss);
glebiuskv 0:2f0e1e23c242 5972 st_word(buf + BS_55AA, 0xAA55); /* MBR signature */
glebiuskv 0:2f0e1e23c242 5973 pte = buf + MBR_Table; /* Create partition table for single partition in the drive */
glebiuskv 0:2f0e1e23c242 5974 pte[PTE_Boot] = 0; /* Boot indicator */
glebiuskv 0:2f0e1e23c242 5975 pte[PTE_StHead] = 1; /* Start head */
glebiuskv 0:2f0e1e23c242 5976 pte[PTE_StSec] = 1; /* Start sector */
glebiuskv 0:2f0e1e23c242 5977 pte[PTE_StCyl] = 0; /* Start cylinder */
glebiuskv 0:2f0e1e23c242 5978 pte[PTE_System] = sys; /* System type */
glebiuskv 0:2f0e1e23c242 5979 n = (b_vol + sz_vol) / (63 * 255); /* (End CHS may be invalid) */
glebiuskv 0:2f0e1e23c242 5980 pte[PTE_EdHead] = 254; /* End head */
glebiuskv 0:2f0e1e23c242 5981 pte[PTE_EdSec] = (BYTE)(((n >> 2) & 0xC0) | 63); /* End sector */
glebiuskv 0:2f0e1e23c242 5982 pte[PTE_EdCyl] = (BYTE)n; /* End cylinder */
glebiuskv 0:2f0e1e23c242 5983 st_dword(pte + PTE_StLba, b_vol); /* Start offset in LBA */
glebiuskv 0:2f0e1e23c242 5984 st_dword(pte + PTE_SizLba, sz_vol); /* Size in sectors */
glebiuskv 0:2f0e1e23c242 5985 if (disk_write(pdrv, buf, 0, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the MBR */
glebiuskv 0:2f0e1e23c242 5986 }
glebiuskv 0:2f0e1e23c242 5987 }
glebiuskv 0:2f0e1e23c242 5988
glebiuskv 0:2f0e1e23c242 5989 if (disk_ioctl(pdrv, CTRL_SYNC, 0) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
glebiuskv 0:2f0e1e23c242 5990
glebiuskv 0:2f0e1e23c242 5991 LEAVE_MKFS(FR_OK);
glebiuskv 0:2f0e1e23c242 5992 }
glebiuskv 0:2f0e1e23c242 5993
glebiuskv 0:2f0e1e23c242 5994
glebiuskv 0:2f0e1e23c242 5995
glebiuskv 0:2f0e1e23c242 5996 #if FF_MULTI_PARTITION
glebiuskv 0:2f0e1e23c242 5997 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 5998 /* Create Partition Table on the Physical Drive */
glebiuskv 0:2f0e1e23c242 5999 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6000
glebiuskv 0:2f0e1e23c242 6001 FRESULT f_fdisk (
glebiuskv 0:2f0e1e23c242 6002 BYTE pdrv, /* Physical drive number */
glebiuskv 0:2f0e1e23c242 6003 const DWORD* szt, /* Pointer to the size table for each partitions */
glebiuskv 0:2f0e1e23c242 6004 void* work /* Pointer to the working buffer (null: use heap memory) */
glebiuskv 0:2f0e1e23c242 6005 )
glebiuskv 0:2f0e1e23c242 6006 {
glebiuskv 0:2f0e1e23c242 6007 UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
glebiuskv 0:2f0e1e23c242 6008 BYTE s_hd, e_hd, *p, *buf; = (BYTE*)work;
glebiuskv 0:2f0e1e23c242 6009 DSTATUS stat;
glebiuskv 0:2f0e1e23c242 6010 DWORD sz_disk, sz_part, s_part;
glebiuskv 0:2f0e1e23c242 6011 FRESULT res;
glebiuskv 0:2f0e1e23c242 6012
glebiuskv 0:2f0e1e23c242 6013
glebiuskv 0:2f0e1e23c242 6014 stat = disk_initialize(pdrv);
glebiuskv 0:2f0e1e23c242 6015 if (stat & STA_NOINIT) return FR_NOT_READY;
glebiuskv 0:2f0e1e23c242 6016 if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
glebiuskv 0:2f0e1e23c242 6017 if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) return FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 6018
glebiuskv 0:2f0e1e23c242 6019 buf = (BYTE*)work;
glebiuskv 0:2f0e1e23c242 6020 #if FF_USE_LFN == 3
glebiuskv 0:2f0e1e23c242 6021 if (!buf) buf = ff_memalloc(FF_MAX_SS); /* Use heap memory for working buffer */
glebiuskv 0:2f0e1e23c242 6022 #endif
glebiuskv 0:2f0e1e23c242 6023 if (!buf) return FR_NOT_ENOUGH_CORE;
glebiuskv 0:2f0e1e23c242 6024
glebiuskv 0:2f0e1e23c242 6025 /* Determine the CHS without any consideration of the drive geometry */
glebiuskv 0:2f0e1e23c242 6026 for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
glebiuskv 0:2f0e1e23c242 6027 if (n == 256) n--;
glebiuskv 0:2f0e1e23c242 6028 e_hd = n - 1;
glebiuskv 0:2f0e1e23c242 6029 sz_cyl = 63 * n;
glebiuskv 0:2f0e1e23c242 6030 tot_cyl = sz_disk / sz_cyl;
glebiuskv 0:2f0e1e23c242 6031
glebiuskv 0:2f0e1e23c242 6032 /* Create partition table */
glebiuskv 0:2f0e1e23c242 6033 mem_set(buf, 0, FF_MAX_SS);
glebiuskv 0:2f0e1e23c242 6034 p = buf + MBR_Table; b_cyl = 0;
glebiuskv 0:2f0e1e23c242 6035 for (i = 0; i < 4; i++, p += SZ_PTE) {
glebiuskv 0:2f0e1e23c242 6036 p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl; /* Number of cylinders */
glebiuskv 0:2f0e1e23c242 6037 if (p_cyl == 0) continue;
glebiuskv 0:2f0e1e23c242 6038 s_part = (DWORD)sz_cyl * b_cyl;
glebiuskv 0:2f0e1e23c242 6039 sz_part = (DWORD)sz_cyl * p_cyl;
glebiuskv 0:2f0e1e23c242 6040 if (i == 0) { /* Exclude first track of cylinder 0 */
glebiuskv 0:2f0e1e23c242 6041 s_hd = 1;
glebiuskv 0:2f0e1e23c242 6042 s_part += 63; sz_part -= 63;
glebiuskv 0:2f0e1e23c242 6043 } else {
glebiuskv 0:2f0e1e23c242 6044 s_hd = 0;
glebiuskv 0:2f0e1e23c242 6045 }
glebiuskv 0:2f0e1e23c242 6046 e_cyl = b_cyl + p_cyl - 1; /* End cylinder */
glebiuskv 0:2f0e1e23c242 6047 if (e_cyl >= tot_cyl) LEAVE_MKFS(FR_INVALID_PARAMETER);
glebiuskv 0:2f0e1e23c242 6048
glebiuskv 0:2f0e1e23c242 6049 /* Set partition table */
glebiuskv 0:2f0e1e23c242 6050 p[1] = s_hd; /* Start head */
glebiuskv 0:2f0e1e23c242 6051 p[2] = (BYTE)(((b_cyl >> 2) & 0xC0) | 1); /* Start sector */
glebiuskv 0:2f0e1e23c242 6052 p[3] = (BYTE)b_cyl; /* Start cylinder */
glebiuskv 0:2f0e1e23c242 6053 p[4] = 0x07; /* System type (temporary setting) */
glebiuskv 0:2f0e1e23c242 6054 p[5] = e_hd; /* End head */
glebiuskv 0:2f0e1e23c242 6055 p[6] = (BYTE)(((e_cyl >> 2) & 0xC0) | 63); /* End sector */
glebiuskv 0:2f0e1e23c242 6056 p[7] = (BYTE)e_cyl; /* End cylinder */
glebiuskv 0:2f0e1e23c242 6057 st_dword(p + 8, s_part); /* Start sector in LBA */
glebiuskv 0:2f0e1e23c242 6058 st_dword(p + 12, sz_part); /* Number of sectors */
glebiuskv 0:2f0e1e23c242 6059
glebiuskv 0:2f0e1e23c242 6060 /* Next partition */
glebiuskv 0:2f0e1e23c242 6061 b_cyl += p_cyl;
glebiuskv 0:2f0e1e23c242 6062 }
glebiuskv 0:2f0e1e23c242 6063 st_word(p, 0xAA55); /* MBR signature (always at offset 510) */
glebiuskv 0:2f0e1e23c242 6064
glebiuskv 0:2f0e1e23c242 6065 /* Write it to the MBR */
glebiuskv 0:2f0e1e23c242 6066 res = (disk_write(pdrv, buf, 0, 1) == RES_OK && disk_ioctl(pdrv, CTRL_SYNC, 0) == RES_OK) ? FR_OK : FR_DISK_ERR;
glebiuskv 0:2f0e1e23c242 6067 LEAVE_MKFS(res);
glebiuskv 0:2f0e1e23c242 6068 }
glebiuskv 0:2f0e1e23c242 6069
glebiuskv 0:2f0e1e23c242 6070 #endif /* FF_MULTI_PARTITION */
glebiuskv 0:2f0e1e23c242 6071 #endif /* FF_USE_MKFS && !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 6072
glebiuskv 0:2f0e1e23c242 6073
glebiuskv 0:2f0e1e23c242 6074
glebiuskv 0:2f0e1e23c242 6075
glebiuskv 0:2f0e1e23c242 6076 #if FF_USE_STRFUNC
glebiuskv 0:2f0e1e23c242 6077 #if FF_USE_LFN && FF_LFN_UNICODE && (FF_STRF_ENCODE < 0 || FF_STRF_ENCODE > 3)
glebiuskv 0:2f0e1e23c242 6078 #error Wrong FF_STRF_ENCODE setting
glebiuskv 0:2f0e1e23c242 6079 #endif
glebiuskv 0:2f0e1e23c242 6080 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6081 /* Get a String from the File */
glebiuskv 0:2f0e1e23c242 6082 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6083
glebiuskv 0:2f0e1e23c242 6084 TCHAR* f_gets (
glebiuskv 0:2f0e1e23c242 6085 TCHAR* buff, /* Pointer to the string buffer to read */
glebiuskv 0:2f0e1e23c242 6086 int len, /* Size of string buffer (items) */
glebiuskv 0:2f0e1e23c242 6087 FIL* fp /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 6088 )
glebiuskv 0:2f0e1e23c242 6089 {
glebiuskv 0:2f0e1e23c242 6090 int nc = 0;
glebiuskv 0:2f0e1e23c242 6091 TCHAR *p = buff;
glebiuskv 0:2f0e1e23c242 6092 BYTE s[2];
glebiuskv 0:2f0e1e23c242 6093 UINT rc;
glebiuskv 0:2f0e1e23c242 6094 WCHAR wc;
glebiuskv 0:2f0e1e23c242 6095 #if FF_USE_LFN && ((FF_LFN_UNICODE == 1 && FF_STRF_ENCODE == 3) || (FF_LFN_UNICODE == 2 && FF_STRF_ENCODE != 3))
glebiuskv 0:2f0e1e23c242 6096 DWORD dc;
glebiuskv 0:2f0e1e23c242 6097 #endif
glebiuskv 0:2f0e1e23c242 6098 #if FF_USE_LFN && FF_LFN_UNICODE == 1 && FF_STRF_ENCODE == 3
glebiuskv 0:2f0e1e23c242 6099 UINT ct;
glebiuskv 0:2f0e1e23c242 6100 #endif
glebiuskv 0:2f0e1e23c242 6101
glebiuskv 0:2f0e1e23c242 6102 #if FF_USE_LFN && FF_LFN_UNICODE == 1 /* UTF-16 output */
glebiuskv 0:2f0e1e23c242 6103 #if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */
glebiuskv 0:2f0e1e23c242 6104 while (nc < len - 1) {
glebiuskv 0:2f0e1e23c242 6105 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6106 if (rc != 1) break;
glebiuskv 0:2f0e1e23c242 6107 wc = s[0];
glebiuskv 0:2f0e1e23c242 6108 if (dbc_1st((BYTE)wc)) {
glebiuskv 0:2f0e1e23c242 6109 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6110 if (rc != 1 || !dbc_2nd(s[0])) continue;
glebiuskv 0:2f0e1e23c242 6111 wc = wc << 8 | s[0];
glebiuskv 0:2f0e1e23c242 6112 }
glebiuskv 0:2f0e1e23c242 6113 wc = ff_oem2uni(wc, CODEPAGE);
glebiuskv 0:2f0e1e23c242 6114 if (wc == 0) continue;
glebiuskv 0:2f0e1e23c242 6115 #elif FF_STRF_ENCODE == 1 || FF_STRF_ENCODE == 2 /* Read a character in UTF-16LE/BE */
glebiuskv 0:2f0e1e23c242 6116 while (nc < len - 1) {
glebiuskv 0:2f0e1e23c242 6117 f_read(fp, s, 2, &rc);
glebiuskv 0:2f0e1e23c242 6118 if (rc != 2) break;
glebiuskv 0:2f0e1e23c242 6119 wc = (FF_STRF_ENCODE == 1) ? s[1] << 8 | s[0] : s[0] << 8 | s[1];
glebiuskv 0:2f0e1e23c242 6120 #elif FF_STRF_ENCODE == 3 /* Read a character in UTF-8 */
glebiuskv 0:2f0e1e23c242 6121 while (nc < len - 2) {
glebiuskv 0:2f0e1e23c242 6122 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6123 if (rc != 1) break;
glebiuskv 0:2f0e1e23c242 6124 dc = s[0];
glebiuskv 0:2f0e1e23c242 6125 if (dc >= 0x80) {
glebiuskv 0:2f0e1e23c242 6126 ct = 0;
glebiuskv 0:2f0e1e23c242 6127 if ((dc & 0xE0) == 0xC0) { dc &= 0x1F; ct = 1; }
glebiuskv 0:2f0e1e23c242 6128 if ((dc & 0xF0) == 0xE0) { dc &= 0x0F; ct = 2; }
glebiuskv 0:2f0e1e23c242 6129 if ((dc & 0xF8) == 0xF0) { dc &= 0x07; ct = 3; }
glebiuskv 0:2f0e1e23c242 6130 if (ct == 0) continue;
glebiuskv 0:2f0e1e23c242 6131 do {
glebiuskv 0:2f0e1e23c242 6132 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6133 if (rc != 1 || (s[0] & 0xC0) != 0x80) break;
glebiuskv 0:2f0e1e23c242 6134 dc = dc << 6 | (s[0] & 0x3F);
glebiuskv 0:2f0e1e23c242 6135 } while (--ct);
glebiuskv 0:2f0e1e23c242 6136 if (ct || dc < 0x80 || dc >= 0x110000) continue;
glebiuskv 0:2f0e1e23c242 6137 }
glebiuskv 0:2f0e1e23c242 6138 if (dc >= 0x10000) {
glebiuskv 0:2f0e1e23c242 6139 wc = (WCHAR)(0xD800 | ((dc >> 10) - 0x40));
glebiuskv 0:2f0e1e23c242 6140 *p++ = wc; nc++;
glebiuskv 0:2f0e1e23c242 6141 wc = (WCHAR)(0xDC00 | (dc & 0x3FF));
glebiuskv 0:2f0e1e23c242 6142 } else {
glebiuskv 0:2f0e1e23c242 6143 wc = (WCHAR)dc;
glebiuskv 0:2f0e1e23c242 6144 }
glebiuskv 0:2f0e1e23c242 6145 #endif
glebiuskv 0:2f0e1e23c242 6146 /* Output it in UTF-16 encoding */
glebiuskv 0:2f0e1e23c242 6147 if (FF_USE_STRFUNC == 2 && wc == '\r') continue;
glebiuskv 0:2f0e1e23c242 6148 *p++ = wc; nc++;
glebiuskv 0:2f0e1e23c242 6149 if (wc == '\n') break;
glebiuskv 0:2f0e1e23c242 6150 }
glebiuskv 0:2f0e1e23c242 6151
glebiuskv 0:2f0e1e23c242 6152 #elif FF_USE_LFN && FF_LFN_UNICODE == 2 && FF_STRF_ENCODE != 3 /* UTF-8 output */
glebiuskv 0:2f0e1e23c242 6153 while (nc < len - 4) {
glebiuskv 0:2f0e1e23c242 6154 #if FF_STRF_ENCODE == 0 /* Read a character in ANSI/OEM */
glebiuskv 0:2f0e1e23c242 6155 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6156 if (rc != 1) break;
glebiuskv 0:2f0e1e23c242 6157 wc = s[0];
glebiuskv 0:2f0e1e23c242 6158 if (dbc_1st((BYTE)wc)) {
glebiuskv 0:2f0e1e23c242 6159 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6160 if (rc != 1 || !dbc_2nd(s[0])) continue;
glebiuskv 0:2f0e1e23c242 6161 wc = wc << 8 | s[0];
glebiuskv 0:2f0e1e23c242 6162 }
glebiuskv 0:2f0e1e23c242 6163 dc = ff_oem2uni(wc, CODEPAGE);
glebiuskv 0:2f0e1e23c242 6164 if (dc == 0) continue;
glebiuskv 0:2f0e1e23c242 6165 #else /* Read a character in UTF-16LE/BE */
glebiuskv 0:2f0e1e23c242 6166 f_read(fp, s, 2, &rc);
glebiuskv 0:2f0e1e23c242 6167 if (rc != 2) break;
glebiuskv 0:2f0e1e23c242 6168 dc = (FF_STRF_ENCODE == 1) ? s[1] << 8 | s[0] : s[0] << 8 | s[1];
glebiuskv 0:2f0e1e23c242 6169 if (IsSurrogate(dc)) {
glebiuskv 0:2f0e1e23c242 6170 f_read(fp, s, 2, &rc);
glebiuskv 0:2f0e1e23c242 6171 if (rc != 2) break;
glebiuskv 0:2f0e1e23c242 6172 wc = (FF_STRF_ENCODE == 1) ? s[1] << 8 | s[0] : s[0] << 8 | s[1];
glebiuskv 0:2f0e1e23c242 6173 if (!IsSurrogateH(dc) || !IsSurrogateL(wc)) continue;
glebiuskv 0:2f0e1e23c242 6174 dc = ((dc & 0x3FF) + 0x40) << 10 | (wc & 0x3FF);
glebiuskv 0:2f0e1e23c242 6175 }
glebiuskv 0:2f0e1e23c242 6176 #endif
glebiuskv 0:2f0e1e23c242 6177 /* Output it in UTF-8 encoding */
glebiuskv 0:2f0e1e23c242 6178 if (FF_USE_STRFUNC == 2 && dc == '\r') continue;
glebiuskv 0:2f0e1e23c242 6179 if (dc < 0x80) { /* 1-byte */
glebiuskv 0:2f0e1e23c242 6180 *p++ = (TCHAR)dc;
glebiuskv 0:2f0e1e23c242 6181 nc++;
glebiuskv 0:2f0e1e23c242 6182 if (dc == '\n') break;
glebiuskv 0:2f0e1e23c242 6183 } else {
glebiuskv 0:2f0e1e23c242 6184 if (dc < 0x800) { /* 2-byte */
glebiuskv 0:2f0e1e23c242 6185 *p++ = (TCHAR)(0xC0 | (dc >> 6 & 0x1F));
glebiuskv 0:2f0e1e23c242 6186 *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 6187 nc += 2;
glebiuskv 0:2f0e1e23c242 6188 } else {
glebiuskv 0:2f0e1e23c242 6189 if (dc < 0x10000) { /* 3-byte */
glebiuskv 0:2f0e1e23c242 6190 *p++ = (TCHAR)(0xE0 | (dc >> 12 & 0x0F));
glebiuskv 0:2f0e1e23c242 6191 *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));
glebiuskv 0:2f0e1e23c242 6192 *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 6193 nc += 3;
glebiuskv 0:2f0e1e23c242 6194 } else { /* 4-byte */
glebiuskv 0:2f0e1e23c242 6195 *p++ = (TCHAR)(0xF0 | (dc >> 18 & 0x07));
glebiuskv 0:2f0e1e23c242 6196 *p++ = (TCHAR)(0x80 | (dc >> 12 & 0x3F));
glebiuskv 0:2f0e1e23c242 6197 *p++ = (TCHAR)(0x80 | (dc >> 6 & 0x3F));
glebiuskv 0:2f0e1e23c242 6198 *p++ = (TCHAR)(0x80 | (dc >> 0 & 0x3F));
glebiuskv 0:2f0e1e23c242 6199 nc += 4;
glebiuskv 0:2f0e1e23c242 6200 }
glebiuskv 0:2f0e1e23c242 6201 }
glebiuskv 0:2f0e1e23c242 6202 }
glebiuskv 0:2f0e1e23c242 6203 }
glebiuskv 0:2f0e1e23c242 6204
glebiuskv 0:2f0e1e23c242 6205 #else /* Byte-by-byte without any conversion (ANSI/OEM API or UTF-8 to UTF-8) */
glebiuskv 0:2f0e1e23c242 6206 while (nc < len - 1) {
glebiuskv 0:2f0e1e23c242 6207 f_read(fp, s, 1, &rc);
glebiuskv 0:2f0e1e23c242 6208 if (rc != 1) break;
glebiuskv 0:2f0e1e23c242 6209 wc = s[0];
glebiuskv 0:2f0e1e23c242 6210 if (FF_USE_STRFUNC == 2 && wc == '\r') continue;
glebiuskv 0:2f0e1e23c242 6211 *p++ = (TCHAR)wc; nc++;
glebiuskv 0:2f0e1e23c242 6212 if (wc == '\n') break;
glebiuskv 0:2f0e1e23c242 6213 }
glebiuskv 0:2f0e1e23c242 6214 #endif
glebiuskv 0:2f0e1e23c242 6215
glebiuskv 0:2f0e1e23c242 6216 *p = 0;
glebiuskv 0:2f0e1e23c242 6217 return nc ? buff : 0; /* When no data read (EOF or error), return with error. */
glebiuskv 0:2f0e1e23c242 6218 }
glebiuskv 0:2f0e1e23c242 6219
glebiuskv 0:2f0e1e23c242 6220
glebiuskv 0:2f0e1e23c242 6221
glebiuskv 0:2f0e1e23c242 6222
glebiuskv 0:2f0e1e23c242 6223 #if !FF_FS_READONLY
glebiuskv 0:2f0e1e23c242 6224 #include <stdarg.h>
glebiuskv 0:2f0e1e23c242 6225 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6226 /* Put a Character to the File */
glebiuskv 0:2f0e1e23c242 6227 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6228
glebiuskv 0:2f0e1e23c242 6229 typedef struct { /* Putchar output buffer and work area */
glebiuskv 0:2f0e1e23c242 6230 FIL *fp; /* Ptr to the writing file */
glebiuskv 0:2f0e1e23c242 6231 int idx, nchr; /* Write index of buf[] (-1:error), number of encoding units written */
glebiuskv 0:2f0e1e23c242 6232 #if FF_USE_LFN && FF_LFN_UNICODE == 1
glebiuskv 0:2f0e1e23c242 6233 WCHAR hs;
glebiuskv 0:2f0e1e23c242 6234 #elif FF_USE_LFN && FF_LFN_UNICODE == 2
glebiuskv 0:2f0e1e23c242 6235 BYTE bs[4];
glebiuskv 0:2f0e1e23c242 6236 UINT wi, ct;
glebiuskv 0:2f0e1e23c242 6237 #endif
glebiuskv 0:2f0e1e23c242 6238 BYTE buf[64]; /* Write buffer */
glebiuskv 0:2f0e1e23c242 6239 } putbuff;
glebiuskv 0:2f0e1e23c242 6240
glebiuskv 0:2f0e1e23c242 6241
glebiuskv 0:2f0e1e23c242 6242 static
glebiuskv 0:2f0e1e23c242 6243 void putc_bfd ( /* Buffered write with code conversion */
glebiuskv 0:2f0e1e23c242 6244 putbuff* pb,
glebiuskv 0:2f0e1e23c242 6245 TCHAR c
glebiuskv 0:2f0e1e23c242 6246 )
glebiuskv 0:2f0e1e23c242 6247 {
glebiuskv 0:2f0e1e23c242 6248 UINT n;
glebiuskv 0:2f0e1e23c242 6249 int i, nc;
glebiuskv 0:2f0e1e23c242 6250 #if FF_USE_LFN && (FF_LFN_UNICODE == 1 || (FF_LFN_UNICODE == 2 && (FF_STRF_ENCODE != 3)))
glebiuskv 0:2f0e1e23c242 6251 WCHAR hs, wc;
glebiuskv 0:2f0e1e23c242 6252 #endif
glebiuskv 0:2f0e1e23c242 6253 #if FF_USE_LFN && FF_LFN_UNICODE == 2 && FF_STRF_ENCODE != 3
glebiuskv 0:2f0e1e23c242 6254 DWORD dc;
glebiuskv 0:2f0e1e23c242 6255 TCHAR *tp;
glebiuskv 0:2f0e1e23c242 6256 #endif
glebiuskv 0:2f0e1e23c242 6257
glebiuskv 0:2f0e1e23c242 6258 if (FF_USE_STRFUNC == 2 && c == '\n') { /* LF -> CRLF conversion */
glebiuskv 0:2f0e1e23c242 6259 putc_bfd(pb, '\r');
glebiuskv 0:2f0e1e23c242 6260 }
glebiuskv 0:2f0e1e23c242 6261
glebiuskv 0:2f0e1e23c242 6262 i = pb->idx; /* Write index of pb->buf[] */
glebiuskv 0:2f0e1e23c242 6263 if (i < 0) return;
glebiuskv 0:2f0e1e23c242 6264 nc = pb->nchr; /* Write unit count */
glebiuskv 0:2f0e1e23c242 6265
glebiuskv 0:2f0e1e23c242 6266 #if FF_USE_LFN && FF_LFN_UNICODE >= 1
glebiuskv 0:2f0e1e23c242 6267 #if FF_USE_LFN && FF_LFN_UNICODE == 1 /* UTF-16 input */
glebiuskv 0:2f0e1e23c242 6268 if (IsSurrogateH(c)) {
glebiuskv 0:2f0e1e23c242 6269 pb->hs = c; return;
glebiuskv 0:2f0e1e23c242 6270 }
glebiuskv 0:2f0e1e23c242 6271 wc = c; hs = pb->hs; pb->hs = 0;
glebiuskv 0:2f0e1e23c242 6272 if (hs != 0) {
glebiuskv 0:2f0e1e23c242 6273 if (!IsSurrogateL(wc)) hs = 0;
glebiuskv 0:2f0e1e23c242 6274 } else {
glebiuskv 0:2f0e1e23c242 6275 if (IsSurrogateL(wc)) return;
glebiuskv 0:2f0e1e23c242 6276 }
glebiuskv 0:2f0e1e23c242 6277 #if FF_STRF_ENCODE == 3 /* Write it in UTF-8 */
glebiuskv 0:2f0e1e23c242 6278 if (hs != 0) { /* 4-byte */
glebiuskv 0:2f0e1e23c242 6279 nc += 4;
glebiuskv 0:2f0e1e23c242 6280 hs = (hs & 0x3FF) + 0x40;
glebiuskv 0:2f0e1e23c242 6281 pb->buf[i++] = (BYTE)(0xF0 | hs >> 8);
glebiuskv 0:2f0e1e23c242 6282 pb->buf[i++] = (BYTE)(0x80 | (hs >> 2 & 0x3F));
glebiuskv 0:2f0e1e23c242 6283 pb->buf[i++] = (BYTE)(0x80 | (hs & 3) << 4 | (wc >> 6 & 0x0F));
glebiuskv 0:2f0e1e23c242 6284 pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));
glebiuskv 0:2f0e1e23c242 6285 } else {
glebiuskv 0:2f0e1e23c242 6286 if (wc < 0x80) { /* 1-byte */
glebiuskv 0:2f0e1e23c242 6287 nc++;
glebiuskv 0:2f0e1e23c242 6288 pb->buf[i++] = (BYTE)wc;
glebiuskv 0:2f0e1e23c242 6289 } else {
glebiuskv 0:2f0e1e23c242 6290 if (wc < 0x800) { /* 2-byte */
glebiuskv 0:2f0e1e23c242 6291 nc += 2;
glebiuskv 0:2f0e1e23c242 6292 pb->buf[i++] = (BYTE)(0xC0 | wc >> 6);
glebiuskv 0:2f0e1e23c242 6293 } else { /* 3-byte */
glebiuskv 0:2f0e1e23c242 6294 nc += 3;
glebiuskv 0:2f0e1e23c242 6295 pb->buf[i++] = (BYTE)(0xE0 | wc >> 12);
glebiuskv 0:2f0e1e23c242 6296 pb->buf[i++] = (BYTE)(0x80 | (wc >> 6 & 0x3F));
glebiuskv 0:2f0e1e23c242 6297 }
glebiuskv 0:2f0e1e23c242 6298 pb->buf[i++] = (BYTE)(0x80 | (wc & 0x3F));
glebiuskv 0:2f0e1e23c242 6299 }
glebiuskv 0:2f0e1e23c242 6300 }
glebiuskv 0:2f0e1e23c242 6301 #endif
glebiuskv 0:2f0e1e23c242 6302 #else /* UTF-8 input */
glebiuskv 0:2f0e1e23c242 6303 for (;;) {
glebiuskv 0:2f0e1e23c242 6304 if (pb->ct == 0) { /* Out of multi-byte sequence? */
glebiuskv 0:2f0e1e23c242 6305 pb->bs[pb->wi = 0] = (BYTE)c; /* Save 1st byte */
glebiuskv 0:2f0e1e23c242 6306 if ((BYTE)c < 0x80) break; /* 1-byte? */
glebiuskv 0:2f0e1e23c242 6307 if (((BYTE)c & 0xE0) == 0xC0) pb->ct = 1; /* 2-byte? */
glebiuskv 0:2f0e1e23c242 6308 if (((BYTE)c & 0xF0) == 0xE0) pb->ct = 2; /* 3-byte? */
glebiuskv 0:2f0e1e23c242 6309 if (((BYTE)c & 0xF1) == 0xF0) pb->ct = 3; /* 4-byte? */
glebiuskv 0:2f0e1e23c242 6310 return;
glebiuskv 0:2f0e1e23c242 6311 } else { /* In the multi-byte sequence */
glebiuskv 0:2f0e1e23c242 6312 if (((BYTE)c & 0xC0) != 0x80) { /* Broken sequence? */
glebiuskv 0:2f0e1e23c242 6313 pb->ct = 0; continue;
glebiuskv 0:2f0e1e23c242 6314 }
glebiuskv 0:2f0e1e23c242 6315 pb->bs[++pb->wi] = (BYTE)c; /* Save the trailing byte */
glebiuskv 0:2f0e1e23c242 6316 if (--pb->ct == 0) break; /* End of sequence? */
glebiuskv 0:2f0e1e23c242 6317 return;
glebiuskv 0:2f0e1e23c242 6318 }
glebiuskv 0:2f0e1e23c242 6319 }
glebiuskv 0:2f0e1e23c242 6320 #if FF_STRF_ENCODE == 3 /* Write it in UTF-8 */
glebiuskv 0:2f0e1e23c242 6321 pb->buf[i++] = pb->bs[0]; nc++;
glebiuskv 0:2f0e1e23c242 6322 if (pb->bs[0] >= 0xC0) {
glebiuskv 0:2f0e1e23c242 6323 pb->buf[i++] = pb->bs[1]; nc++;
glebiuskv 0:2f0e1e23c242 6324 }
glebiuskv 0:2f0e1e23c242 6325 if (pb->bs[0] >= 0xE0) {
glebiuskv 0:2f0e1e23c242 6326 pb->buf[i++] = pb->bs[2]; nc++;
glebiuskv 0:2f0e1e23c242 6327 }
glebiuskv 0:2f0e1e23c242 6328 if (pb->bs[0] >= 0xF0) {
glebiuskv 0:2f0e1e23c242 6329 pb->buf[i++] = pb->bs[3]; nc++;
glebiuskv 0:2f0e1e23c242 6330 }
glebiuskv 0:2f0e1e23c242 6331 #else /* Write it in UTF-16 or ANSI/OEM */
glebiuskv 0:2f0e1e23c242 6332 tp = (TCHAR*)pb->bs;
glebiuskv 0:2f0e1e23c242 6333 dc = tchar2uni(&tp); /* UTF-8 ==> UTF-16 */
glebiuskv 0:2f0e1e23c242 6334 if (dc == 0xFFFFFFFF) return;
glebiuskv 0:2f0e1e23c242 6335 wc = (WCHAR)dc;
glebiuskv 0:2f0e1e23c242 6336 hs = (WCHAR)(dc >> 16);
glebiuskv 0:2f0e1e23c242 6337 #endif
glebiuskv 0:2f0e1e23c242 6338 #endif
glebiuskv 0:2f0e1e23c242 6339 #if FF_USE_LFN && FF_LFN_UNICODE >= 1 && FF_STRF_ENCODE != 3
glebiuskv 0:2f0e1e23c242 6340 #if FF_STRF_ENCODE == 2 /* Write a character in UTF-16BE */
glebiuskv 0:2f0e1e23c242 6341 if (hs != 0) {
glebiuskv 0:2f0e1e23c242 6342 pb->buf[i++] = (BYTE)(hs >> 8);
glebiuskv 0:2f0e1e23c242 6343 pb->buf[i++] = (BYTE)hs;
glebiuskv 0:2f0e1e23c242 6344 nc++;
glebiuskv 0:2f0e1e23c242 6345 }
glebiuskv 0:2f0e1e23c242 6346 pb->buf[i++] = (BYTE)(wc >> 8);
glebiuskv 0:2f0e1e23c242 6347 pb->buf[i++] = (BYTE)wc;
glebiuskv 0:2f0e1e23c242 6348 nc++;
glebiuskv 0:2f0e1e23c242 6349 #elif FF_STRF_ENCODE == 1 /* Write a character in UTF-16LE */
glebiuskv 0:2f0e1e23c242 6350 if (hs != 0) {
glebiuskv 0:2f0e1e23c242 6351 pb->buf[i++] = (BYTE)hs;
glebiuskv 0:2f0e1e23c242 6352 pb->buf[i++] = (BYTE)(hs >> 8);
glebiuskv 0:2f0e1e23c242 6353 nc++;
glebiuskv 0:2f0e1e23c242 6354 }
glebiuskv 0:2f0e1e23c242 6355 pb->buf[i++] = (BYTE)wc;
glebiuskv 0:2f0e1e23c242 6356 pb->buf[i++] = (BYTE)(wc >> 8);
glebiuskv 0:2f0e1e23c242 6357 nc++;
glebiuskv 0:2f0e1e23c242 6358 #else /* Write a character in ANSI/OEM */
glebiuskv 0:2f0e1e23c242 6359 if (hs != 0) return;
glebiuskv 0:2f0e1e23c242 6360 wc = ff_uni2oem(wc, CODEPAGE); /* UTF-16 ==> ANSI/OEM */
glebiuskv 0:2f0e1e23c242 6361 if (wc == 0) return;;
glebiuskv 0:2f0e1e23c242 6362 if (wc >= 0x100) {
glebiuskv 0:2f0e1e23c242 6363 pb->buf[i++] = (BYTE)(wc >> 8); nc++;
glebiuskv 0:2f0e1e23c242 6364 }
glebiuskv 0:2f0e1e23c242 6365 pb->buf[i++] = (BYTE)wc; nc++;
glebiuskv 0:2f0e1e23c242 6366 #endif
glebiuskv 0:2f0e1e23c242 6367 #endif
glebiuskv 0:2f0e1e23c242 6368
glebiuskv 0:2f0e1e23c242 6369 #else /* ANSI/OEM input */
glebiuskv 0:2f0e1e23c242 6370 pb->buf[i++] = (BYTE)c;
glebiuskv 0:2f0e1e23c242 6371 nc++;
glebiuskv 0:2f0e1e23c242 6372 #endif
glebiuskv 0:2f0e1e23c242 6373
glebiuskv 0:2f0e1e23c242 6374 if (i >= (int)(sizeof pb->buf) - 4) { /* Write buffered characters to the file */
glebiuskv 0:2f0e1e23c242 6375 f_write(pb->fp, pb->buf, (UINT)i, &n);
glebiuskv 0:2f0e1e23c242 6376 i = (n == (UINT)i) ? 0 : -1;
glebiuskv 0:2f0e1e23c242 6377 }
glebiuskv 0:2f0e1e23c242 6378 pb->idx = i;
glebiuskv 0:2f0e1e23c242 6379 pb->nchr = nc;
glebiuskv 0:2f0e1e23c242 6380 }
glebiuskv 0:2f0e1e23c242 6381
glebiuskv 0:2f0e1e23c242 6382
glebiuskv 0:2f0e1e23c242 6383 static
glebiuskv 0:2f0e1e23c242 6384 int putc_flush ( /* Flush left characters in the buffer */
glebiuskv 0:2f0e1e23c242 6385 putbuff* pb
glebiuskv 0:2f0e1e23c242 6386 )
glebiuskv 0:2f0e1e23c242 6387 {
glebiuskv 0:2f0e1e23c242 6388 UINT nw;
glebiuskv 0:2f0e1e23c242 6389
glebiuskv 0:2f0e1e23c242 6390 if ( pb->idx >= 0 /* Flush buffered characters to the file */
glebiuskv 0:2f0e1e23c242 6391 && f_write(pb->fp, pb->buf, (UINT)pb->idx, &nw) == FR_OK
glebiuskv 0:2f0e1e23c242 6392 && (UINT)pb->idx == nw) return pb->nchr;
glebiuskv 0:2f0e1e23c242 6393 return EOF;
glebiuskv 0:2f0e1e23c242 6394 }
glebiuskv 0:2f0e1e23c242 6395
glebiuskv 0:2f0e1e23c242 6396
glebiuskv 0:2f0e1e23c242 6397 static
glebiuskv 0:2f0e1e23c242 6398 void putc_init ( /* Initialize write buffer */
glebiuskv 0:2f0e1e23c242 6399 putbuff* pb,
glebiuskv 0:2f0e1e23c242 6400 FIL* fp
glebiuskv 0:2f0e1e23c242 6401 )
glebiuskv 0:2f0e1e23c242 6402 {
glebiuskv 0:2f0e1e23c242 6403 mem_set(pb, 0, sizeof (putbuff));
glebiuskv 0:2f0e1e23c242 6404 pb->fp = fp;
glebiuskv 0:2f0e1e23c242 6405 }
glebiuskv 0:2f0e1e23c242 6406
glebiuskv 0:2f0e1e23c242 6407
glebiuskv 0:2f0e1e23c242 6408
glebiuskv 0:2f0e1e23c242 6409 int f_putc (
glebiuskv 0:2f0e1e23c242 6410 TCHAR c, /* A character to be output */
glebiuskv 0:2f0e1e23c242 6411 FIL* fp /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 6412 )
glebiuskv 0:2f0e1e23c242 6413 {
glebiuskv 0:2f0e1e23c242 6414 putbuff pb;
glebiuskv 0:2f0e1e23c242 6415
glebiuskv 0:2f0e1e23c242 6416
glebiuskv 0:2f0e1e23c242 6417 putc_init(&pb, fp);
glebiuskv 0:2f0e1e23c242 6418 putc_bfd(&pb, c); /* Put the character */
glebiuskv 0:2f0e1e23c242 6419 return putc_flush(&pb);
glebiuskv 0:2f0e1e23c242 6420 }
glebiuskv 0:2f0e1e23c242 6421
glebiuskv 0:2f0e1e23c242 6422
glebiuskv 0:2f0e1e23c242 6423
glebiuskv 0:2f0e1e23c242 6424
glebiuskv 0:2f0e1e23c242 6425 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6426 /* Put a String to the File */
glebiuskv 0:2f0e1e23c242 6427 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6428
glebiuskv 0:2f0e1e23c242 6429 int f_puts (
glebiuskv 0:2f0e1e23c242 6430 const TCHAR* str, /* Pointer to the string to be output */
glebiuskv 0:2f0e1e23c242 6431 FIL* fp /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 6432 )
glebiuskv 0:2f0e1e23c242 6433 {
glebiuskv 0:2f0e1e23c242 6434 putbuff pb;
glebiuskv 0:2f0e1e23c242 6435
glebiuskv 0:2f0e1e23c242 6436
glebiuskv 0:2f0e1e23c242 6437 putc_init(&pb, fp);
glebiuskv 0:2f0e1e23c242 6438 while (*str) putc_bfd(&pb, *str++); /* Put the string */
glebiuskv 0:2f0e1e23c242 6439 return putc_flush(&pb);
glebiuskv 0:2f0e1e23c242 6440 }
glebiuskv 0:2f0e1e23c242 6441
glebiuskv 0:2f0e1e23c242 6442
glebiuskv 0:2f0e1e23c242 6443
glebiuskv 0:2f0e1e23c242 6444
glebiuskv 0:2f0e1e23c242 6445 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6446 /* Put a Formatted String to the File */
glebiuskv 0:2f0e1e23c242 6447 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6448
glebiuskv 0:2f0e1e23c242 6449 int f_printf (
glebiuskv 0:2f0e1e23c242 6450 FIL* fp, /* Pointer to the file object */
glebiuskv 0:2f0e1e23c242 6451 const TCHAR* fmt, /* Pointer to the format string */
glebiuskv 0:2f0e1e23c242 6452 ... /* Optional arguments... */
glebiuskv 0:2f0e1e23c242 6453 )
glebiuskv 0:2f0e1e23c242 6454 {
glebiuskv 0:2f0e1e23c242 6455 va_list arp;
glebiuskv 0:2f0e1e23c242 6456 putbuff pb;
glebiuskv 0:2f0e1e23c242 6457 BYTE f, r;
glebiuskv 0:2f0e1e23c242 6458 UINT i, j, w;
glebiuskv 0:2f0e1e23c242 6459 DWORD v;
glebiuskv 0:2f0e1e23c242 6460 TCHAR c, d, str[32], *p;
glebiuskv 0:2f0e1e23c242 6461
glebiuskv 0:2f0e1e23c242 6462
glebiuskv 0:2f0e1e23c242 6463 putc_init(&pb, fp);
glebiuskv 0:2f0e1e23c242 6464
glebiuskv 0:2f0e1e23c242 6465 va_start(arp, fmt);
glebiuskv 0:2f0e1e23c242 6466
glebiuskv 0:2f0e1e23c242 6467 for (;;) {
glebiuskv 0:2f0e1e23c242 6468 c = *fmt++;
glebiuskv 0:2f0e1e23c242 6469 if (c == 0) break; /* End of string */
glebiuskv 0:2f0e1e23c242 6470 if (c != '%') { /* Non escape character */
glebiuskv 0:2f0e1e23c242 6471 putc_bfd(&pb, c);
glebiuskv 0:2f0e1e23c242 6472 continue;
glebiuskv 0:2f0e1e23c242 6473 }
glebiuskv 0:2f0e1e23c242 6474 w = f = 0;
glebiuskv 0:2f0e1e23c242 6475 c = *fmt++;
glebiuskv 0:2f0e1e23c242 6476 if (c == '0') { /* Flag: '0' padding */
glebiuskv 0:2f0e1e23c242 6477 f = 1; c = *fmt++;
glebiuskv 0:2f0e1e23c242 6478 } else {
glebiuskv 0:2f0e1e23c242 6479 if (c == '-') { /* Flag: left justified */
glebiuskv 0:2f0e1e23c242 6480 f = 2; c = *fmt++;
glebiuskv 0:2f0e1e23c242 6481 }
glebiuskv 0:2f0e1e23c242 6482 }
glebiuskv 0:2f0e1e23c242 6483 if (c == '*') { /* Minimum width by argument */
glebiuskv 0:2f0e1e23c242 6484 w = va_arg(arp, int);
glebiuskv 0:2f0e1e23c242 6485 c = *fmt++;
glebiuskv 0:2f0e1e23c242 6486 } else {
glebiuskv 0:2f0e1e23c242 6487 while (IsDigit(c)) { /* Minimum width */
glebiuskv 0:2f0e1e23c242 6488 w = w * 10 + c - '0';
glebiuskv 0:2f0e1e23c242 6489 c = *fmt++;
glebiuskv 0:2f0e1e23c242 6490 }
glebiuskv 0:2f0e1e23c242 6491 }
glebiuskv 0:2f0e1e23c242 6492 if (c == 'l' || c == 'L') { /* Type prefix: Size is long int */
glebiuskv 0:2f0e1e23c242 6493 f |= 4; c = *fmt++;
glebiuskv 0:2f0e1e23c242 6494 }
glebiuskv 0:2f0e1e23c242 6495 if (c == 0) break;
glebiuskv 0:2f0e1e23c242 6496 d = c;
glebiuskv 0:2f0e1e23c242 6497 if (IsLower(d)) d -= 0x20;
glebiuskv 0:2f0e1e23c242 6498 switch (d) { /* Atgument type is... */
glebiuskv 0:2f0e1e23c242 6499 case 'S' : /* String */
glebiuskv 0:2f0e1e23c242 6500 p = va_arg(arp, TCHAR*);
glebiuskv 0:2f0e1e23c242 6501 for (j = 0; p[j]; j++) ;
glebiuskv 0:2f0e1e23c242 6502 if (!(f & 2)) { /* Right padded */
glebiuskv 0:2f0e1e23c242 6503 while (j++ < w) putc_bfd(&pb, ' ') ;
glebiuskv 0:2f0e1e23c242 6504 }
glebiuskv 0:2f0e1e23c242 6505 while (*p) putc_bfd(&pb, *p++) ; /* String body */
glebiuskv 0:2f0e1e23c242 6506 while (j++ < w) putc_bfd(&pb, ' ') ; /* Left padded */
glebiuskv 0:2f0e1e23c242 6507 continue;
glebiuskv 0:2f0e1e23c242 6508
glebiuskv 0:2f0e1e23c242 6509 case 'C' : /* Character */
glebiuskv 0:2f0e1e23c242 6510 putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
glebiuskv 0:2f0e1e23c242 6511
glebiuskv 0:2f0e1e23c242 6512 case 'B' : /* Unsigned binary */
glebiuskv 0:2f0e1e23c242 6513 r = 2; break;
glebiuskv 0:2f0e1e23c242 6514
glebiuskv 0:2f0e1e23c242 6515 case 'O' : /* Unsigned octal */
glebiuskv 0:2f0e1e23c242 6516 r = 8; break;
glebiuskv 0:2f0e1e23c242 6517
glebiuskv 0:2f0e1e23c242 6518 case 'D' : /* Signed decimal */
glebiuskv 0:2f0e1e23c242 6519 case 'U' : /* Unsigned decimal */
glebiuskv 0:2f0e1e23c242 6520 r = 10; break;
glebiuskv 0:2f0e1e23c242 6521
glebiuskv 0:2f0e1e23c242 6522 case 'X' : /* Unsigned hexdecimal */
glebiuskv 0:2f0e1e23c242 6523 r = 16; break;
glebiuskv 0:2f0e1e23c242 6524
glebiuskv 0:2f0e1e23c242 6525 default: /* Unknown type (pass-through) */
glebiuskv 0:2f0e1e23c242 6526 putc_bfd(&pb, c); continue;
glebiuskv 0:2f0e1e23c242 6527 }
glebiuskv 0:2f0e1e23c242 6528
glebiuskv 0:2f0e1e23c242 6529 /* Get an argument and put it in numeral */
glebiuskv 0:2f0e1e23c242 6530 v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
glebiuskv 0:2f0e1e23c242 6531 if (d == 'D' && (v & 0x80000000)) {
glebiuskv 0:2f0e1e23c242 6532 v = 0 - v;
glebiuskv 0:2f0e1e23c242 6533 f |= 8;
glebiuskv 0:2f0e1e23c242 6534 }
glebiuskv 0:2f0e1e23c242 6535 i = 0;
glebiuskv 0:2f0e1e23c242 6536 do {
glebiuskv 0:2f0e1e23c242 6537 d = (TCHAR)(v % r); v /= r;
glebiuskv 0:2f0e1e23c242 6538 if (d > 9) d += (c == 'x') ? 0x27 : 0x07;
glebiuskv 0:2f0e1e23c242 6539 str[i++] = d + '0';
glebiuskv 0:2f0e1e23c242 6540 } while (v && i < sizeof str / sizeof *str);
glebiuskv 0:2f0e1e23c242 6541 if (f & 8) str[i++] = '-';
glebiuskv 0:2f0e1e23c242 6542 j = i; d = (f & 1) ? '0' : ' ';
glebiuskv 0:2f0e1e23c242 6543 if (!(f & 2)) {
glebiuskv 0:2f0e1e23c242 6544 while (j++ < w) putc_bfd(&pb, d); /* Right pad */
glebiuskv 0:2f0e1e23c242 6545 }
glebiuskv 0:2f0e1e23c242 6546 do {
glebiuskv 0:2f0e1e23c242 6547 putc_bfd(&pb, str[--i]); /* Number body */
glebiuskv 0:2f0e1e23c242 6548 } while (i);
glebiuskv 0:2f0e1e23c242 6549 while (j++ < w) putc_bfd(&pb, d); /* Left pad */
glebiuskv 0:2f0e1e23c242 6550 }
glebiuskv 0:2f0e1e23c242 6551
glebiuskv 0:2f0e1e23c242 6552 va_end(arp);
glebiuskv 0:2f0e1e23c242 6553
glebiuskv 0:2f0e1e23c242 6554 return putc_flush(&pb);
glebiuskv 0:2f0e1e23c242 6555 }
glebiuskv 0:2f0e1e23c242 6556
glebiuskv 0:2f0e1e23c242 6557 #endif /* !FF_FS_READONLY */
glebiuskv 0:2f0e1e23c242 6558 #endif /* FF_USE_STRFUNC */
glebiuskv 0:2f0e1e23c242 6559
glebiuskv 0:2f0e1e23c242 6560
glebiuskv 0:2f0e1e23c242 6561
glebiuskv 0:2f0e1e23c242 6562 #if FF_CODE_PAGE == 0
glebiuskv 0:2f0e1e23c242 6563 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6564 /* Set Active Codepage for the Path Name */
glebiuskv 0:2f0e1e23c242 6565 /*-----------------------------------------------------------------------*/
glebiuskv 0:2f0e1e23c242 6566
glebiuskv 0:2f0e1e23c242 6567 FRESULT f_setcp (
glebiuskv 0:2f0e1e23c242 6568 WORD cp /* Value to be set as active code page */
glebiuskv 0:2f0e1e23c242 6569 )
glebiuskv 0:2f0e1e23c242 6570 {
glebiuskv 0:2f0e1e23c242 6571 static const WORD validcp[] = { 437, 720, 737, 771, 775, 850, 852, 857, 860, 861, 862, 863, 864, 865, 866, 869, 0};
glebiuskv 0:2f0e1e23c242 6572 static const BYTE *const tables[] = {Ct437, Ct720, Ct737, Ct771, Ct775, Ct850, Ct852, Ct857, Ct860, Ct861, Ct862, Ct863, Ct864, Ct865, Ct866, Ct869, 0};
glebiuskv 0:2f0e1e23c242 6573 UINT i;
glebiuskv 0:2f0e1e23c242 6574
glebiuskv 0:2f0e1e23c242 6575
glebiuskv 0:2f0e1e23c242 6576 for (i = 0; validcp[i] != 0 && validcp[i] != cp; i++) ; /* Find the code page */
glebiuskv 0:2f0e1e23c242 6577 if (validcp[i] != cp) return FR_INVALID_PARAMETER; /* Not found? */
glebiuskv 0:2f0e1e23c242 6578
glebiuskv 0:2f0e1e23c242 6579 CodePage = cp;
glebiuskv 0:2f0e1e23c242 6580 if (cp >= 900) { /* DBCS */
glebiuskv 0:2f0e1e23c242 6581 ExCvt = 0;
glebiuskv 0:2f0e1e23c242 6582 DbcTbl = tables[i];
glebiuskv 0:2f0e1e23c242 6583 } else { /* SBCS */
glebiuskv 0:2f0e1e23c242 6584 ExCvt = tables[i];
glebiuskv 0:2f0e1e23c242 6585 DbcTbl = 0;
glebiuskv 0:2f0e1e23c242 6586 }
glebiuskv 0:2f0e1e23c242 6587 return FR_OK;
glebiuskv 0:2f0e1e23c242 6588 }
glebiuskv 0:2f0e1e23c242 6589 #endif /* FF_CODE_PAGE == 0 */
glebiuskv 0:2f0e1e23c242 6590