Upgrade to from FATFS-0.10b to FATFS-0.13
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<meta http-equiv="cache-control" content="no-cache">
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<meta name="description" content="Open source FAT file system module for embedded projects">
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<link rel="alternate" hreflang="ja" title="Japanese version" href="00index_j.html">
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<link rel="stylesheet" href="css_e.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - Generic FAT File System Module</title>
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</head>
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<body>
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<h1>FatFs - Generic FAT File System Module</h1>
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<hr>
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<div class="abst">
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<img src="img/layers.png" class="rset" width="245" height="255" alt="layer">
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<p>FatFs is a generic FAT file system module for small embedded systems. The FatFs is written in compliance with ANSI C and completely separated from the disk I/O layer. Therefore it is independent of hardware architecture. It can be incorporated into small microcontrollers with limited resource, such as AVR, 8051, PIC, ARM, Z80, 68k and etc. Also Petit FatFs module for tiny microcontrollers is available <a href="http://elm-chan.org/fsw/ff/00index_p.html">here</a>.</p>
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<h4>Features</h4>
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<ul>
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<li>Windows compatible FAT file system.</li>
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<li>Platform independent. Easy to port.</li>
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<li>Very small footprint for code and work area.</li>
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<li>Various configuration options:
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<ul>
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<li>Multiple volumes (physical drives and partitions).</li>
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<li>Multiple ANSI/OEM code pages including DBCS.</li>
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<li>Long file name support in ANSI/OEM or Unicode.</li>
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<li>RTOS support.</li>
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<li>Multiple sector size support.</li>
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<li>Read-only, minimized API, I/O buffer and etc...</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="para">
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<h3>Application Interface</h3>
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<p>FatFs module provides following functions to the applications. In other words, this list describes what FatFs can do to access the FAT volumes.</p>
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<ul>
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<li><a href="en/mount.html">f_mount</a> - Register/Unregister a work area</li>
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<li><a href="en/open.html">f_open</a> - Open/Create a file</li>
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<li><a href="en/close.html">f_close</a> - Close an open file</li>
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<li><a href="en/read.html">f_read</a> - Read file</li>
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<li><a href="en/write.html">f_write</a> - Write file</li>
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<li><a href="en/lseek.html">f_lseek</a> - Move read/write pointer, Expand file size</li>
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<li><a href="en/truncate.html">f_truncate</a> - Truncate file size</li>
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<li><a href="en/sync.html">f_sync</a> - Flush cached data</li>
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<li><a href="en/forward.html">f_forward</a> - Forward file data to the stream</li>
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<li><a href="en/stat.html">f_stat</a> - Check existance of a file or sub-directory</li>
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<li><a href="en/opendir.html">f_opendir</a> - Open a directory</li>
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<li><a href="en/closedir.html">f_closedir</a> - Close an open directory</li>
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<li><a href="en/readdir.html">f_readdir</a> - Read a directory item</li>
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<li><a href="en/mkdir.html">f_mkdir</a> - Create a sub-directory</li>
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<li><a href="en/unlink.html">f_unlink</a> - Remove a file or sub-directory</li>
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<li><a href="en/chmod.html">f_chmod</a> - Change attribute</li>
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<li><a href="en/utime.html">f_utime</a> - Change timestamp</li>
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<li><a href="en/rename.html">f_rename</a> - Rename/Move a file or sub-directory</li>
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<li><a href="en/chdir.html">f_chdir</a> - Change current directory</li>
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<li><a href="en/chdrive.html">f_chdrive</a> - Change current drive</li>
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<li><a href="en/getcwd.html">f_getcwd</a> - Retrieve the current directory</li>
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<li><a href="en/getfree.html">f_getfree</a> - Get free space on the volume</li>
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<li><a href="en/getlabel.html">f_getlabel</a> - Get volume label</li>
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<li><a href="en/setlabel.html">f_setlabel</a> - Set volume label</li>
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<li><a href="en/mkfs.html">f_mkfs</a> - Create a file system on the drive</li>
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<li><a href="en/fdisk.html">f_fdisk</a> - Divide a physical drive</li>
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<li><a href="en/gets.html">f_gets</a> - Read a string</li>
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<li><a href="en/putc.html">f_putc</a> - Write a character</li>
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<li><a href="en/puts.html">f_puts</a> - Write a string</li>
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<li><a href="en/printf.html">f_printf</a> - Write a formatted string</li>
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<li><a href="en/tell.html">f_tell</a> - Get current read/write pointer</li>
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<li><a href="en/eof.html">f_eof</a> - Test for end-of-file on a file</li>
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<li><a href="en/size.html">f_size</a> - Get size of a file</li>
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<li><a href="en/error.html">f_error</a> - Test for an error on a file</li>
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</ul>
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</div>
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<div class="para">
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<h3>Device Control Interface</h3>
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<p>Since the FatFs module is a file system driver, it is completely separated from physical devices, such as memory card, harddisk and any type of storage devices. The low level device control module is not a part of FatFs module. FatFs accesses the storage device via a simple interface described below. These functions are provided by implementer. Sample implementations for some platforms are also available in the downloads.</p>
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<ul>
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<li><a href="en/dstat.html">disk_status</a> - Get device status</li>
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<li><a href="en/dinit.html">disk_initialize</a> - Initialize device</li>
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<li><a href="en/dread.html">disk_read</a> - Read sector(s)</li>
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<li><a href="en/dwrite.html">disk_write</a> - Write sector(s)</li>
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<li><a href="en/dioctl.html">disk_ioctl</a> - Control device dependent features</li>
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<li><a href="en/fattime.html">get_fattime</a> - Get current time</li>
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</ul>
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</div>
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<div class="para">
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<h3>Resources</h3>
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<p>The FatFs module is a free software opened for education, research and development. You can use, modify and/or redistribute it for personal projects or commercial products without any restriction under your responsibility. For further information, refer to the application note.</p>
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<ul>
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<li><a href="http://elm-chan.org/fsw/ff/bd/"><em>FatFs User Forum</em></a>↗</li>
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<li>Read first: <a href="en/appnote.html">FatFs module application note</a></li>
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<li>Latest Information: <a href="http://elm-chan.org/fsw/ff/00index_e.html">http://elm-chan.org/fsw/ff/00index_e.html</a>↗</li>
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<li><a href="http://nemuisan.blog.bai.ne.jp/">Nemuisan's Blog</a>↗ (Well written implementations for STM32F/SDIO and LPC2300/MCI)</li>
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<li><a href="http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/arm_memcards/index.html">ARM-Projects by Martin THOMAS</a>↗ (Examples for LPC2000, AT91SAM and STM32)</li>
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<li><a href="http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx">FAT32 Specification by Microsoft</a>↗ (The reference document on FAT file system)</li>
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<li><a href="http://elm-chan.org/docs/fat.html">The basics of FAT file system [ja]</a>↗</li>
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<li><a href="http://elm-chan.org/docs/mmc/mmc_e.html">How to Use MMC/SDC</a>↗</li>
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<li><a href="img/rwtest.png">Benchmark 1</a> (ATmega64/9.2MHz with MMC via SPI, HDD/CFC via GPIO)</li>
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<li><a href="img/rwtest2.png">Benchmark 2</a> (LPC2368/72MHz with MMC via MCI)</li>
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<li><a href="http://members.jcom.home.ne.jp/felm/fd.mp4">Demo movie of an application</a> (this project is in ffsample.zip/lpc23xx)</li>
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</ul>
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</div>
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<hr>
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<p class="foot"><a href="../../fsw_e.html">Return</a></p>
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</body>
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</html>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="ja">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<meta http-equiv="cache-control" content="no-cache">
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<meta name="description" content="組み込みシステム向け汎用FATファイル・システム">
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<link rel="start" title="Site Top" href="../../index_j.html">
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<link rel="up" title="Freewares" href="../../fsw.html">
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<link rel="alternate" hreflang="en" title="英文" href="00index_e.html">
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<link rel="stylesheet" href="css_j.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs 汎用FATファイルシステム・モジュール</title>
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</head>
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<body>
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<h1>FatFs 汎用FATファイルシステム・モジュール</h1>
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<hr>
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<div class="abst">
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<img src="img/layers.png" class="rset" width="245" height="255" alt="layer">
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<p>FatFsは小規模な組み込みシステム向けの汎用FATファイルシステム・モジュールです。ANSI C準拠でハードウェア・アーキテクチャには依存しないので、必要なワーク・エリアが確保できれば、8051, PIC, AVR, SH, Z80, 68k, H8, ARMなど安価なマイコンでも使用可能です。FatFsをシュリンクした<a href="http://elm-chan.org/fsw/ff/00index_p.html">ぷちFatFs</a>↗もあります。</p>
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<h4>FatFsモジュールの特徴</h4>
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<ul>
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<li>Windows互換 FATファイル・システム</li>
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<li>プラットフォーム非依存</li>
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<li>コンパクトなコードとRAM使用量</li>
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<li>多くの構成オプション:
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<ul>
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<li>複数のボリューム(物理ドライブ・区画)</li>
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<li>DBCSを含む複数のANSI/OEMコード・ページ</li>
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<li>長いファイル名(LFN) (Unicode APIも選択可)</li>
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<li>マルチタスク関連</li>
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<li>マルチ・セクタ・サイズ</li>
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<li>リード・オンリー構成、一部APIの削除、バッファ構成、その他…</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="para">
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<h3>上位レイヤ・インターフェース</h3>
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<p>FatFsモジュールは、アプリケーション・レイヤに対し、次のファイル操作関数(API)を提供します。つまり、このリストはFatFsにできることをシンプルに示しています。</p>
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<ul>
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<li><a href="ja/mount.html">f_mount</a> - ワークエリアの登録・抹消</li>
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<li><a href="ja/open.html">f_open</a> - ファイルのオープン・作成</li>
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<li><a href="ja/close.html">f_close</a> - ファイルのクローズ</li>
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<li><a href="ja/read.html">f_read</a> - ファイルの読み出し</li>
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<li><a href="ja/write.html">f_write</a> - ファイルの書き込み</li>
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<li><a href="ja/lseek.html">f_lseek</a> - リード/ライト・ポインタの移動, ファイルの拡張</li>
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<li><a href="ja/truncate.html">f_truncate</a> - ファイル・サイズの切り詰め</li>
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<li><a href="ja/sync.html">f_sync</a> - キャッシュされたデータのフラッシュ</li>
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<li><a href="ja/forward.html">f_forward</a> - ファイル・データをストリーム関数に転送</li>
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<li><a href="ja/stat.html">f_stat</a> - ファイル/サブ・ディレクトリの存在チェックと情報の取得</li>
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<li><a href="ja/opendir.html">f_opendir</a> - ディレクトリのオープン</li>
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<li><a href="ja/closedir.html">f_closedir</a> - ディレクトリのクローズ</li>
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<li><a href="ja/readdir.html">f_readdir</a> - ディレクトリの読み出し</li>
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<li><a href="ja/mkdir.html">f_mkdir</a> - サブ・ディレクトリの作成</li>
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<li><a href="ja/unlink.html">f_unlink</a> - ファイル/サブ・ディレクトリの削除</li>
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<li><a href="ja/chmod.html">f_chmod</a> - ファイル/サブ・ディレクトリの属性の変更</li>
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<li><a href="ja/utime.html">f_utime</a> - ファイル/サブ・ディレクトリのタイムスタンプの変更</li>
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<li><a href="ja/rename.html">f_rename</a> - ファイル/サブ・ディレクトリの名前の変更・移動</li>
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<li><a href="ja/chdir.html">f_chdir</a> - カレント・ディレクトリの変更</li>
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<li><a href="ja/chdrive.html">f_chdrive</a> - カレント・ドライブの変更</li>
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<li><a href="ja/getcwd.html">f_getcwd</a> - カレント・ディレクトリの取得</li>
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<li><a href="ja/getfree.html">f_getfree</a> - ボリューム空き領域の取得</li>
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<li><a href="ja/getlabel.html">f_getlabel</a> - ボリューム・ラベルの取得</li>
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<li><a href="ja/setlabel.html">f_setlabel</a> - ボリューム・ラベルの設定</li>
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<li><a href="ja/mkfs.html">f_mkfs</a> - 論理ドライブのフォーマット</li>
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<li><a href="ja/fdisk.html">f_fdisk</a> - 物理ドライブの分割</li>
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<li><a href="ja/gets.html">f_gets</a> - 文字列の読み出し</li>
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<li><a href="ja/putc.html">f_putc</a> - 文字の書き込み</li>
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<li><a href="ja/puts.html">f_puts</a> - 文字列の書き込み</li>
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<li><a href="ja/printf.html">f_printf</a> - 書式化文字列の書き込み</li>
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<li><a href="ja/tell.html">f_tell</a> - 現在のリード/ライト・ポインタの取得</li>
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<li><a href="ja/eof.html">f_eof</a> - ファイル終端の有無の取得</li>
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<li><a href="ja/size.html">f_size</a> - ファイル・サイズの取得</li>
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<li><a href="ja/error.html">f_error</a> - ファイルのエラーの有無の取得</li>
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</ul>
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</div>
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<div class="para">
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<h3>下位レイヤ・インターフェース</h3>
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<p>FatFsモジュールは、単なるファイル・システム・レイヤなので、ストレージ・デバイス制御レイヤは含まれません。使用するストレージに対応した制御関数は、ユーザによって提供される必要があります。FatFsモジュールは、下位レイヤに対し少なくとも次のインターフェースを要求します。OS関連機能を有効にしたときは、これに加えてプロセス/メモリ関連関数も必要になります。サンプル・プロジェクトに下位レイヤの実装例を示します。</p>
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<ul>
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<li><a href="ja/dstat.html">disk_status</a> - デバイスの状態取得</li>
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<li><a href="ja/dinit.html">disk_initialize</a> - デバイスの初期化</li>
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<li><a href="ja/dread.html">disk_read</a> - データの読み出し</li>
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<li><a href="ja/dwrite.html">disk_write</a> - データの書き込み</li>
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<li><a href="ja/dioctl.html">disk_ioctl</a> - その他のデバイス制御</li>
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<li><a href="ja/fattime.html">get_fattime</a> - 日付・時刻の取得</li>
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</ul>
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</div>
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<div class="para">
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<h3>資料</h3>
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<p>FatFsモジュールはフリー・ソフトウェアとして教育・研究・開発用に公開しています。どのような利用目的（個人利用から商用まで）でも使用・改変・配布について一切の制限はありませんが、全て利用者の責任の下での利用とします。詳しくはアプリケーション・ノートを参照してください。</p>
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<ul>
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<li><a href="http://elm-chan.org/fsw/ff/bd/"><em>FatFsユーザ・フォーラム</em></a>↗</li>
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<li>最初に読め: <a href="ja/appnote.html">FatFsモジュール・アプリケーション・ノート</a></li>
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<li>最新版: <a href="http://elm-chan.org/fsw/ff/00index_j.html">http://elm-chan.org/fsw/ff/00index_j.html</a>↗</li>
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<li><a href="http://nemuisan.blog.bai.ne.jp/">ねむいさんのぶろぐ</a>↗ (Well written implementations for STM32F/SDIO and LPC2300/MCI)</li>
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<li><a href="http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/arm_memcards/index.html">ARM-Projects by Martin THOMAS</a>↗ (Examples for LPC2000, AT91SAM and STM32)</li>
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<li><a href="http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx">FATファイル・システム仕様書 by Microsoft</a>↗ (The reference document on FAT file system)</li>
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<li><a href="http://elm-chan.org/docs/fat.html">FATファイル・システム概要</a>↗ (↑を読むためのガイド)</li>
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<li><a href="http://elm-chan.org/docs/mmc/mmc.html">MMCの使いかた</a>↗</li>
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<li><a href="img/rwtest.png">パフォーマンス・テスト1</a> (ATmega64/9.2MHz with MMC via SPI, HDD/CFC via GPIO)</li>
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<li><a href="img/rwtest2.png">パフォーマンス・テスト2</a> (LPC2368/72MHz with MMC via MCI)</li>
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</ul>
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</div>
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<hr>
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<p class="foot"><a href="../../fsw.html">戻る</a></p>
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</body>
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</html>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/appnote.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs Module Application Note</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>FatFs Module Application Note</h1>
|
||||
<ol class="toc">
|
||||
<li><a href="#port">How to Port</a></li>
|
||||
<li><a href="#limits">Limits</a></li>
|
||||
<li><a href="#memory">Memory Usage</a></li>
|
||||
<li><a href="#reduce">Module Size Reduction</a></li>
|
||||
<li><a href="#lfn">Long File Name</a></li>
|
||||
<li><a href="#unicode">Unicode API</a></li>
|
||||
<li><a href="#reentrant">Re-entrancy</a></li>
|
||||
<li><a href="#dup">Duplicated File Access</a></li>
|
||||
<li><a href="#fs1">Performance Effective File Access</a></li>
|
||||
<li><a href="#fs2">Considerations on Flash Memory Media</a></li>
|
||||
<li><a href="#critical">Critical Section</a></li>
|
||||
<li><a href="#fs3">Extended Use of FatFs API</a></li>
|
||||
<li><a href="#license">About FatFs License</a></li>
|
||||
</ol>
|
||||
<hr>
|
||||
|
||||
<div class="para" id="port">
|
||||
<h3>How to Port</h3>
|
||||
|
||||
<h4>Basic considerations</h4>
|
||||
<p>The FatFs module is assuming following conditions on portability.</p>
|
||||
<ul>
|
||||
<li>ANSI C<br>
|
||||
The FatFs module is a middleware written in ANSI C (C89). There is no platform dependence, so long as the compiler is in compliance with ANSI C.</li>
|
||||
<li>Size of integer types<br>
|
||||
The FatFs module assumes that size of char/short/long are 8/16/32 bit and int is 16 or 32 bit. These correspondence are defined in <tt>integer.h</tt>. This will not be a problem on most compilers. When any conflict with existing definitions is occured, you must resolve it with care.</li>
|
||||
</ul>
|
||||
|
||||
<h4>System organizations</h4>
|
||||
<p>The dependency diagram shown below is a typical configuration of the embedded system with FatFs module.</p>
|
||||
<p><img src="../img/modules.png" width="580" height="280" alt="dependency diagram"></p>
|
||||
<p>(a) If a working disk module with FatFs API is provided, no additional function is needed. (b) To attach existing disk drivers with different API, glue functions are needed to translate the APIs between FatFs and the drivers.</p>
|
||||
<p><img src="../img/funcs.png" width="680" height="430" alt="functional diagram"></p>
|
||||
|
||||
<h4>Which function is required?</h4>
|
||||
<p>You need to provide only low level disk I/O functions that required by FatFs module and nothing else. If a working disk module for the target is already existing, you need to write only glue functions to attach it to the FatFs module. If not, you need to port any other disk module or write it from scratch. Most of defined functions are not that always required. For example, disk write function is not required in read-only configuration. Following table shows which function is required depends on configuration options.</p>
|
||||
<table class="lst2">
|
||||
<tr><th>Function</th><th>Required when:</th><th>Note</th></tr>
|
||||
<tr><td>disk_status<br>disk_initialize<br>disk_read</td><td>Always</td><td rowspan="5">Disk I/O functions.<br>Samples available in ffsample.zip.<br>There are many implementations on the web.</td></tr>
|
||||
<tr><td>disk_write<br>get_fattime<br>disk_ioctl (CTRL_SYNC)</td><td>_FS_READONLY == 0</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_COUNT)<br>disk_ioctl (GET_BLOCK_SIZE)</td><td>_USE_MKFS == 1</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_SIZE)</td><td>_MAX_SS != _MIN_SS</td></tr>
|
||||
<tr><td>disk_ioctl (CTRL_ERASE_SECTOR)</td><td>_USE_ERASE == 1</td></tr>
|
||||
<tr><td>ff_convert<br>ff_wtoupper</td><td>_USE_LFN >= 1</td><td>Unicode support functions.<br>Available in option/unicode.c.</td></tr>
|
||||
<tr><td>ff_cre_syncobj<br>ff_del_syncobj<br>ff_req_grant<br>ff_rel_grant</td><td>_FS_REENTRANT == 1</td><td rowspan="2">O/S dependent functions.<br>Samples available in option/syscall.c.</td></tr>
|
||||
<tr><td>ff_mem_alloc<br>ff_mem_free</td><td>_USE_LFN == 3</td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para" id="limits">
|
||||
<h3>Limits</h3>
|
||||
<ul>
|
||||
<li>FAT sub-types: FAT12, FAT16 and FAT32.</li>
|
||||
<li>Number of open files: Unlimited, depends on available memory.</li>
|
||||
<li>Number of volumes: Upto 10.</li>
|
||||
<li>File size: Depends on the FAT specs. (upto 4G-1 bytes)</li>
|
||||
<li>Volume size: Depends on the FAT specs. (upto 2T bytes at 512 bytes/sector)</li>
|
||||
<li>Cluster size: Depends on the FAT specs. (upto 64K bytes at 512 bytes/sector)</li>
|
||||
<li>Sector size: Depends on the FAT specs. (512, 1024, 2048 and 4096 bytes)</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div class="para" id="memory">
|
||||
<h3>Memory Usage</h3>
|
||||
<table class="lst2">
|
||||
<tr><th></th><th>ARM7<small><br>32bit</small></th><th>ARM7<small><br>Thumb</small></th><th>CM3<small><br>Thumb-2</small></th><th>AVR</th><th>H8/300H</th><th>PIC24</th><th>RL78</th><th>V850ES</th><th>SH-2A</th><th>RX600</th><th>IA-32</th></tr>
|
||||
<tr class="cal"> <td>Compiler</td><td>GCC</td><td>GCC</td><td>GCC</td><td>GCC</td><td>CH38</td><td>C30</td><td>CC78K0R</td><td>CA850</td><td>SHC</td><td>RXC</td><td>VC6</td></tr>
|
||||
<tr class="cal"> <td>_WORD_ACCESS</td><td>0</td><td>0</td><td>0</td><td>1</td><td>0</td><td>0</td><td>0</td><td>1</td><td>0</td><td>1</td><td>1</td></tr>
|
||||
<!-- ARM Thumb CM3 AVR H8 PIC24 RL78 V850ES SH-2A RX600 IA-32 -->
|
||||
<tr class="lst3 ral"><td class="cal">text (Full, R/W)</td><td>10675</td><td>7171</td><td>6617</td><td>13355</td><td>10940</td><td>11722</td><td>13262</td><td>8113</td><td>9048</td><td>6032</td><td>7952</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Min, R/W)</td> <td>6727</td><td>4631</td><td>4331</td> <td>8569</td> <td>7262</td> <td>7720</td> <td>9088</td><td>5287</td><td>5800</td><td>3948</td><td>5183</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Full, R/O)</td> <td>4731</td><td>3147</td><td>2889</td> <td>6235</td> <td>5170</td> <td>5497</td> <td>6482</td><td>3833</td><td>3972</td><td>2862</td><td>3719</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Min, R/O)</td> <td>3559</td><td>2485</td><td>2295</td> <td>4575</td> <td>4064</td> <td>4240</td> <td>5019</td><td>2993</td><td>3104</td><td>2214</td><td>2889</td></tr>
|
||||
<tr class="ral"> <td class="cal">bss</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td></tr>
|
||||
<tr class="ral"> <td class="cal">Work area<br>(_FS_TINY == 0)</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td></tr>
|
||||
<tr class="ral"> <td class="cal">Work area<br>(_FS_TINY == 1)</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td></tr>
|
||||
</table>
|
||||
<p>These are the memory usage on some target systems with following condition. The memory sizes are in unit of byte, <em>V</em> denotes number of volumes and <em>F</em> denotes number of open files. All samples are optimezed in code size.</p>
|
||||
<pre>
|
||||
FatFs R0.10a options:
|
||||
_FS_READONLY 0 (R/W) or 1 (R/O)
|
||||
_FS_MINIMIZE 0 (Full function) or 3 (Minimized function)
|
||||
_USE_STRFUNC 0 (Disable string functions)
|
||||
_USE_MKFS 0 (Disable f_mkfs function)
|
||||
_USE_FORWARD 0 (Disable f_forward function)
|
||||
_USE_FASTSEEK 0 (Disable fast seek feature)
|
||||
_CODE_PAGE 932 (Japanese Shift-JIS)
|
||||
_USE_LFN 0 (Disable LFN feature)
|
||||
_MAX_SS 512 (Fixed sector size)
|
||||
_FS_RPATH 0 (Disable relative path feature)
|
||||
_FS_LABEL 0 (Disable volume label functions)
|
||||
_VOLUMES V (Number of logical drives to be used)
|
||||
_MULTI_PARTITION 0 (Single partition per drive)
|
||||
_FS_REENTRANT 0 (Disable thread safe)
|
||||
_FS_LOCK 0 (Disable file lock control)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para" id="reduce">
|
||||
<h3>Module Size Reduction</h3>
|
||||
<p>Follwing table shows which API function is removed by configuration options for the module size reduction.</p>
|
||||
<table class="lst2">
|
||||
<tr><td rowspan="2">Function</td><td colspan="4">_FS_MINIMIZE</td><td colspan="2">_FS_READONLY</td><td colspan="2">_USE_STRFUNC</td><td colspan="3">_FS_RPATH</td><td colspan="2">_FS_LABEL</td><td colspan="2">_USE_MKFS</td><td colspan="2">_USE_FORWARD</td><td colspan="2">_MULTI_PARTITION</td></tr>
|
||||
<tr><td>0</td><td>1</td><td>2</td><td>3</td><td>0</td><td>1</td><td>0 </td><td>1/2</td><td>0</td><td>1</td><td>2</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td></tr>
|
||||
<tr class="lst3"><td>f_mount</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_open</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_close</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_read</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_write</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_sync</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_lseek</td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_opendir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_closedir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_readdir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_stat</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getfree</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_truncate</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_unlink</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_mkdir</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chmod</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_utime</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_rename</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chdir</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chdrive</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getcwd</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getlabel</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_setlabel</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_forward</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_mkfs</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_fdisk</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td>x</td><td></td></tr>
|
||||
<tr><td>f_putc</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_puts</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_printf</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_gets</td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para" id="lfn">
|
||||
<h3>Long File Name</h3>
|
||||
<p>FatFs module supports LFN (long file name). The two different file names, SFN (short file name) and LFN, of a file is transparent on the API except for <tt>f_readdir()</tt> function. The LFN feature is disabled by default. To enable it, set <tt>_USE_LFN</tt> to 1, 2 or 3, and add <tt>option/unicode.c</tt> to the project. The LFN feature requiers a certain working buffer in addition. The buffer size can be configured by <tt>_MAX_LFN</tt> according to the available memory. The length of an LFN will reach up to 255 characters, so that the <tt>_MAX_LFN</tt> should be set to 255 for full featured LFN operation. If the size of working buffer is insufficient for the input file name, the file function fails with <tt>FR_INVALID_NAME</tt>. When enable the LFN feature with re-entrant configuration, <tt>_USE_LFN</tt> must be set to 2 or 3. In this case, the file function allocates the working buffer on the stack or heap. The working buffer occupies <tt>(_MAX_LFN + 1) * 2</tt> bytes.</p>
|
||||
<table class="lst2 rset">
|
||||
<caption>LFN cfg on ARM7TDMI</caption>
|
||||
<tr><th>Code page</th><th>Program size</th></tr>
|
||||
<tr><td>SBCS</td><td>+3.7K</td></tr>
|
||||
<tr><td>932(Shift-JIS)</td><td>+62K</td></tr>
|
||||
<tr><td>936(GBK)</td><td>+177K</td></tr>
|
||||
<tr><td>949(Korean)</td><td>+139K</td></tr>
|
||||
<tr><td>950(Big5)</td><td>+111K</td></tr>
|
||||
</table>
|
||||
<p>When the LFN feature is enabled, the module size will be increased depends on the selected code page. Right table shows how many bytes increased when LFN feature is enabled with some code pages. Especially, in the CJK region, tens of thousands of characters are being used. Unfortunately, it requires a huge OEM-Unicode bidirectional conversion table and the module size will be drastically increased that shown in the table. As the result, the FatFs with LFN feature with those code pages will not able to be implemented to most 8-bit microcontrollers.</p>
|
||||
<p>Note that the LFN feature on the FAT file system is a patent of Microsoft Corporation. This is not the case on FAT32 but most FAT32 drivers come with the LFN feature. FatFs can swich the LFN feature off by configuration option. When enable LFN feature on the commercial products, a license from Microsoft may be required depends on the final destination.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="unicode">
|
||||
<h3>Unicode API</h3>
|
||||
<p>By default, FatFs uses ANSI/OEM code set on the API under LFN configuration. FatFs can also switch the character encoding to Unicode on the API by <tt>_LFN_UNICODE</tt> option. This means that the FatFs supports the True-LFN feature. For more information, refer to the description in the <a href="filename.html">file name</a>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="reentrant">
|
||||
<h3>Re-entrancy</h3>
|
||||
<p>The file operations to the different volume is always re-entrant and can work simultaneously. The file operations to the same volume is not re-entrant but it can also be configured to thread-safe by <tt>_FS_REENTRANT</tt> option. In this case, also the OS dependent synchronization object control functions, <tt>ff_cre_syncobj(), ff_del_syncobj(), ff_req_grant() and ff_rel_grant()</tt> must be added to the project. There are some examples in the <tt>option/syscall.c</tt>.</p>
|
||||
<p>When a file function is called while the volume is in use by any other task, the file function is suspended until that task leaves the file function. If wait time exceeded a period defined by <tt>_TIMEOUT</tt>, the file function will abort with <tt>FR_TIMEOUT</tt>. The timeout feature might not be supported by some RTOS.</p>
|
||||
<p>There is an exception for <tt>f_mount(), f_mkfs(), f_fdisk()</tt> function. These functions are not re-entrant to the same volume or corresponding physical drive. When use these functions, all other tasks must unmount the volume and avoid to access the volume.</p>
|
||||
<p>Note that this section describes on the re-entrancy of the FatFs module itself but also the low level disk I/O layer will need to be re-entrant.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="dup">
|
||||
<h3>Duplicated File Access</h3>
|
||||
<p>FatFs module does not support the read/write collision control of duplicated open to a file. The duplicated open is permitted only when each of open method to a file is read mode. The duplicated open with one or more write mode to a file is always prohibited, and also open file must not be renamed and deleted. A violation of these rules can cause data colluption.</p>
|
||||
<p>The file lock control can also be available by <tt>_FS_LOCK</tt> option. The value defines the number of open objects to manage simultaneously. In this case, if any open, rename or remove that violating the file shareing rule that described above is attempted, the file function will fail with <tt>FR_LOCKED</tt>. If number of open objects, files and sub-directories, gets larger than <tt>_FS_LOCK</tt>, the <tt>f_open(), f_optndir()</tt> function will fail with <tt>FR_TOO_MANY_OPEN_FILES</tt>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs1">
|
||||
<h3>Performance Effective File Access</h3>
|
||||
<p>For good read/write throughput on the small embedded systems with limited size of memory, application programmer should consider what process is done in the FatFs module. The file data on the volume is transferred in following sequence by <tt>f_read()</tt> function.</p>
|
||||
<p>Figure 1. Sector misaligned read (short)<br>
|
||||
<img src="../img/f1.png" width="490" height="110" alt="">
|
||||
</p>
|
||||
<p>Figure 2. Sector misaligned read (long)<br>
|
||||
<img src="../img/f2.png" width="490" height="140" alt="">
|
||||
</p>
|
||||
<p>Figure 3. Fully sector aligned read<br>
|
||||
<img src="../img/f3.png" width="490" height="119" alt="">
|
||||
</p>
|
||||
<p>The file I/O buffer is a sector buffer to read/write a partial data on the sector. The sector buffer is either file private sector buffer on each file object or shared sector buffer in the file system object. The buffer configuration option <tt>_FS_TINY</tt> determins which sector buffer is used for the file data transfer. When tiny buffer (1) is selected, data memory consumption is reduced 512 bytes each file object. In this case, FatFs module uses only a sector buffer in the file system object for file data transfer and FAT/directory access. The disadvantage of the tiny buffer configuration is: the FAT data cached in the sector buffer will be lost by file data transfer and it must be reloaded at every cluster boundary. However it will be suitable for most application from view point of the decent performance and low memory comsumption.</p>
|
||||
<p>Figure 1 shows that a partial sector, sector misaligned part of the file, is transferred via the file I/O buffer. At long data transfer shown in Figure 2, middle of transfer data that covers one or more sector is transferred to the application buffer directly. Figure 3 shows that the case of entier transfer data is aligned to the sector boundary. In this case, file I/O buffer is not used. On the direct transfer, the maximum extent of sectors are read with <tt>disk_read()</tt> function at a time but the multiple sector transfer is divided at cluster boundary even if it is contiguous.</p>
|
||||
<p>Therefore taking effort to sector aligned read/write accesss eliminates buffered data transfer and the read/write performance will be improved. Besides the effect, cached FAT data will not be flushed by file data transfer at the tiny configuration, so that it can achieve same performance as non-tiny configuration with small memory footprint.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs2">
|
||||
<h3>Considerations on Flash Memory Media</h3>
|
||||
<p>To maximize the write performance of flash memory media, such as SDC, CFC and U Disk, it must be controlled in consideration of its characteristitcs.</p>
|
||||
<h4>Using Mutiple-Sector Write</h4>
|
||||
<div class="rset">
|
||||
Figure 6. Comparison between Multiple/Single Sector Write<br>
|
||||
<img src="../img/f6.png" width="630" height="148" alt="fig.6">
|
||||
</div>
|
||||
<p>The write throughput of the flash memory media becomes the worst at single sector write transaction. The write throughput increases as the number of sectors per a write transaction. This effect more appers at faster interface speed and the performance ratio often becomes grater than ten. <a href="../img/rwtest2.png">This graph</a> is clearly explaining how fast is multiple block write (W:16K, 32 sectors) than single block write (W:100, 1 sector), and also larger card tends to be slow at single block write. The number of write transactions also affects the life time of the flash memory media. Therefore the application program should write the data in large block as possible. The ideal write chunk size and alighment is size of sector, and size of cluster is the best. Of course all layers between the application and the storage device must have consideration on multiple sector write, however most of open-source disk drivers lack it. Do not split a multiple sector write request into single sector write transactions or the write throughput gets poor. Note that FatFs module and its sample disk drivers supprt multiple sector read/write feature. </p>
|
||||
<h4>Forcing Memory Erase</h4>
|
||||
<p>When remove a file with <tt>f_remove()</tt> function, the data clusters occupied by the file are marked 'free' on the FAT. But the data sectors containing the file data are not that applied any process, so that the file data left occupies a part of the flash memory array as 'live block'. If the file data is forced erased on removing the file, those data blocks will be turned in to the free block pool. This may skip internal block erase operation to the data block on next write operation. As the result the write performance might be improved. FatFs can manage this feature by setting <tt>_USE_ERASE</tt> to 1. Note that this is an expectation of internal process of the flash memory storage and not that always effective. Also <tt>f_remove()</tt> function will take a time when remove a large file. Most applications will not need this feature.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="critical">
|
||||
<h3>Critical Section</h3>
|
||||
<p>If a write operation to the FAT volume is interrupted due to any accidental failure, such as sudden blackout, incorrect disk removal and unrecoverable disk error, the FAT structure on the volume can be broken. Following images shows the critical section of the FatFs module.</p>
|
||||
<div class="lset">
|
||||
Figure 4. Long critical section<br>
|
||||
<img src="../img/f4.png" width="320" height="436" alt="fig.4">
|
||||
</div>
|
||||
<div class="lset">
|
||||
Figure 5. Minimized critical section<br>
|
||||
<img src="../img/f5.png" width="320" height="436" alt="fig.5">
|
||||
</div>
|
||||
<br class="clr">
|
||||
<p>An interruption in the red section can cause a cross link; as a result, the object being changed can be lost. If an interruption in the yellow section is occured, there is one or more possibility listed below.</p>
|
||||
<ul>
|
||||
<li>The file data being rewrited is collapsed.</li>
|
||||
<li>The file being appended returns initial state.</li>
|
||||
<li>The file created as new is gone.</li>
|
||||
<li>The file created as new or overwritten remains but no content.</li>
|
||||
<li>Efficiency of disk use gets worse due to lost clusters.</li>
|
||||
</ul>
|
||||
<p>Each case does not affect the files that not opened in write mode. To minimize risk of data loss, the critical section can be minimized by minimizing the time that file is opened in write mode or using <tt>f_sync()</tt> function as shown in Figure 5.</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs3">
|
||||
<h3>Extended Use of FatFs API</h3>
|
||||
<p>These are examples of extended use of FatFs APIs. New item will be added whenever a useful code is found.</p>
|
||||
<ol>
|
||||
<li><a href="../img/app1.c">Open or create a file for append</a></li>
|
||||
<li><a href="../img/app2.c">Empty a directory</a></li>
|
||||
<li><a href="../img/app3.c">Allocate contiguous area to the file</a></li>
|
||||
<li><a href="../img/app4.c">Function/Compatible checker for low level disk I/O module</a></li>
|
||||
<li><a href="../img/mkfatimg.zip">FAT image creator</a></li>
|
||||
</ol>
|
||||
</div>
|
||||
|
||||
<div class="para" id="license">
|
||||
<h3>About FatFs License</h3>
|
||||
<p>FatFs has being developped as a personal project of author, ChaN. It is free from the code anyone else wrote. Following code block shows a copy of the FatFs license document that included in the source files.</p>
|
||||
<pre>/*----------------------------------------------------------------------------/
|
||||
/ FatFs - FAT file system module R0.10b (C)ChaN, 2014
|
||||
/-----------------------------------------------------------------------------/
|
||||
/ FatFs module is a generic FAT file system module for small embedded systems.
|
||||
/ This is a free software that opened for education, research and commercial
|
||||
/ developments under license policy of following trems.
|
||||
/
|
||||
/ Copyright (C) 2014, ChaN, all right reserved.
|
||||
/
|
||||
/ * The FatFs module is a free software and there is NO WARRANTY.
|
||||
/ * No restriction on use. You can use, modify and redistribute it for
|
||||
/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
|
||||
/ * Redistributions of source code must retain the above copyright notice.
|
||||
/
|
||||
/-----------------------------------------------------------------------------/</pre>
|
||||
<p>Therefore FatFs license is one of the BSD-style licenses but there is a significant feature. Because FatFs is for embedded projects, the conditions of redistributions in binary form, such as embedded code, hex file, binary library or any forms without source code, are not specified in order to extend usability for commercial products. The documentation of the distributions need not include about FatFs and its license document, and it may also. This is equivalent to the BSD 1-Clause License. Of course FatFs is compatible with the projects under GNU GPL. When redistribute the FatFs with any modification or branch it as a folk, the license can also be changed to GNU GPL or BSD-style license.</p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
71
3rdparty/fatfs-0.10b/doc/en/dread.html
vendored
71
3rdparty/fatfs-0.10b/doc/en/dread.html
vendored
|
|
@ -1,71 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/dread.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_read</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_read</h2>
|
||||
<p>The disk_read function reads sector(s) from the storage device.</p>
|
||||
<pre>
|
||||
DRESULT disk_read (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] Physical drive number */</span>
|
||||
BYTE* <span class="arg">buff</span>, <span class="c">/* [OUT] Pointer to the read data buffer */</span>
|
||||
DWORD <span class="arg">sector</span>, <span class="c">/* [IN] Start sector number */</span>
|
||||
UINT <span class="arg">count</span> <span class="c">/* [IN] Number of sectros to read */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>Physical drive number to identify the target device.</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>Pointer to the <em>byte array</em> to store the read data.</dd>
|
||||
<dt>sector</dt>
|
||||
<dd>Start sector number in logical block address (LBA).</dd>
|
||||
<dt>count</dt>
|
||||
<dd>Number of sectors to read. FatFs specifis it in range of from 1 to 128.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Value</h4>
|
||||
<dl class="ret">
|
||||
<dt>RES_OK (0)</dt>
|
||||
<dd>The function succeeded.</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>Any hard error occured during the read operation and could not recover it.</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
<dd>Invalid parameter.</dd>
|
||||
<dt>RES_NOTRDY</dt>
|
||||
<dd>The device has not been initialized.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The memory address specified by <tt class="arg">buff</tt> is not that always aligned to word boundary because the type of argument is defined as <tt>BYTE*</tt>. The misaligned read/write request can occure at <a href="appnote.html#fs1">direct transfer</a>. If the bus architecture, especially DMA controller, does not allow misaligned memory access, it should be solved in this function. There are some workarounds described below to avoid this issue.</p>
|
||||
<ul>
|
||||
<li>Convert word transfer to byte transfer in this function. - Recommended.</li>
|
||||
<li>For <tt>f_read()</tt>, avoid long read request that includes a whole of sector. - Direct transfer will never occure.</li>
|
||||
<li>For <tt>f_read(fp, buff, btr, &br)</tt>, make sure that <tt>(((UINT)buff & 3) == (f_tell(fp) & 3))</tt> is true. - Word aligned direct transfer is guaranteed.</li>
|
||||
</ul>
|
||||
<p>Generally, a multiple sector transfer request must not be split into single sector transactions to the storage device, or you will not get good read throughput.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
97
3rdparty/fatfs-0.10b/doc/en/fdisk.html
vendored
97
3rdparty/fatfs-0.10b/doc/en/fdisk.html
vendored
|
|
@ -1,97 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/fdisk.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_fdisk</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_fdisk</h2>
|
||||
<p>The f_fdisk fucntion divides a physical drive.</p>
|
||||
<pre>
|
||||
FRESULT f_fdisk (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] Physical drive number */</span>
|
||||
const DWORD <span class="arg">part[]</span>, <span class="c">/* [IN] Partition size */</span>
|
||||
void* <span class="arg">work</span> <span class="c">/* [IN] Work area */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>Specifies the <em>physical drive</em> to be divided.</dd>
|
||||
<dt>part[]</dt>
|
||||
<dd>Partition map table. It must have four items.</dd>
|
||||
<dt>work</dt>
|
||||
<dd>Pointer to the function work area. The size must be at least <tt>_MAX_SS</tt> bytes.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#ip">FR_INVALID_PARAMETER</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_fdisk()</tt> function creates a partition table into the MBR of the physical drive. The partitioning rule is in generic FDISK format, so that it can create upto four primary partitions. Logical volumes in the extended partition is not supported. The <tt class="arg">part[]</tt> with four items specifies how to divide the physical drive. The first item specifies the size of first primary partition and fourth item specifies the fourth primary partition. If the value is less than or equal to 100, it specifies percentage of the partition in the entire disk space. If it is larger than 100, it specifies the partition size in unit of sector.</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_READOLNY == 0</tt>, <tt>_USE_MKFS == 1</tt> and <tt>_MULTI_PARTITION == 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<span class="c">/* Volume management table defined by user (required when _MULTI_PARTITION == 1) */</span>
|
||||
|
||||
PARTITION VolToPart[] = {
|
||||
{0, 1}, <span class="c">/* Logical drive 0 ==> Physical drive 0, 1st partition */</span>
|
||||
{0, 2}, <span class="c">/* Logical drive 1 ==> Physical drive 0, 2nd partition */</span>
|
||||
{1, 0} <span class="c">/* Logical drive 2 ==> Physical drive 1, auto detection */</span>
|
||||
};
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* Initialize a brand-new disk drive mapped to physical drive 0 */</span>
|
||||
|
||||
FATFS fs;
|
||||
DWORD plist[] = {50, 50, 0, 0}; <span class="c">/* Divide drive into two partitions */</span>
|
||||
BYTE work[_MAX_SS];
|
||||
|
||||
f_fdisk(0, plist, work); <span class="c">/* Divide physical drive 0 */</span>
|
||||
|
||||
f_mount(&fs, "0:", 0); <span class="c">/* Register work area to the logical drive 0 */</span>
|
||||
f_mkfs("0:", 0, 0); <span class="c">/* Create FAT volume on the logical drive 0. 2nd argument is ignored. */</span>
|
||||
f_mount(0, "0:", 0); <span class="c">/* Unregister work area from the logical drive 0 */</span>
|
||||
|
||||
f_mount(&fs, "1:", 0); <span class="c">/* Register a work area to the logical drive 1 */</span>
|
||||
f_mkfs("1:", 0, 0); <span class="c">/* Create FAT volume on the logical drive 1. 2nd argument is ignored. */</span>
|
||||
f_mount(0, "1:", 0); <span class="c">/* Unregister work area from the logical drive 1 */</span>
|
||||
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><a href="filename.html#vol">Volume management</a>, <a href="mkfs.html"><tt>f_mkfs</tt></a></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
78
3rdparty/fatfs-0.10b/doc/en/filename.html
vendored
78
3rdparty/fatfs-0.10b/doc/en/filename.html
vendored
|
|
@ -1,78 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/filename.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - Path Names</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>Path Names</h1>
|
||||
|
||||
<div class="para" id="nam">
|
||||
<h3>Format of the path names</h3>
|
||||
<p>The format of path name on the FatFs module is similer to the filename specs of DOS/Windos as follows:</p>
|
||||
<pre>"[<em>drive</em>:][/]<em>directory</em>/<em>file</em>"</pre>
|
||||
<p>The FatFs module supports long file name (LFN) and 8.3 format file name (SFN). The LFN can be used when LFN feature is enabled (<tt>_USE_LFN > 0</tt>). The sub directories are separated with a \ or / in the same way as DOS/Windows API. Duplicated separators are skipped and ignored. Only a difference is that the logical drive is specified in a numeral with a colon. When drive number is omitted, the drive number is assumed as <em>default drive</em> (drive 0 or current drive).</p>
|
||||
<p>Control characters (<tt>'\0'</tt> to <tt>'\x1F'</tt>) are recognized as end of the path name. Leading/embedded spaces in the path name are valid as a part of the name at LFN configuration but they are recognized as end of the path name at non-LFN configuration. Trailing spaces and dots are ignored.</p>
|
||||
<p>In default configuration (<tt>_FS_RPATH == 0</tt>), it does not have a concept of current directory like OS oriented file system. All objects on the volume are always specified in full path name that follows from the root directory. Dot directory names are not allowed. Heading separator is ignored and it can be exist or omitted. The default drive is fixed to drive 0.</p>
|
||||
<p>When relative path feature is enabled (<tt>_FS_RPATH == 1</tt>), specified path is followed from the root directory if a heading separator is exist. If not, it is followed from the current directory of the drive set with <a href="chdir.html">f_chdir</a> function. Dot names are also allowed for the path name. The default drive is the current drive set with <a href="chdrive.html">f_chdrive</a> function.</p>
|
||||
<table class="lst2">
|
||||
<tr><td>Path name</td><td>_FS_RPATH == 0</td><td>_FS_RPATH == 1</td></tr>
|
||||
<tr class="lst3"><td>file.txt</td><td>A file in the root directory of the drive 0</td><td>A file in the current directory of the current drive</td></tr>
|
||||
<tr><td>/file.txt</td><td>A file in the root directory of the drive 0</td><td>A file in the root directory of the current drive</td></tr>
|
||||
<tr><td></td><td>The root directory of the drive 0</td><td>The current directory of the current drive</td></tr>
|
||||
<tr><td>/</td><td>The root directory of the drive 0</td><td>The root directory of the current drive</td></tr>
|
||||
<tr><td>2:</td><td>The root directory of the drive 2</td><td>The current directory of the drive 2</td></tr>
|
||||
<tr><td>2:/</td><td>The root directory of the drive 2</td><td>The root directory of the drive 2</td></tr>
|
||||
<tr><td>2:file.txt</td><td>A file in the root directory of the drive 2</td><td>A file in the current directory of the drive 2</td></tr>
|
||||
<tr><td>../file.txt</td><td>Invalid name</td><td>A file in the parent directory</td></tr>
|
||||
<tr><td>.</td><td>Invalid name</td><td>This directory</td></tr>
|
||||
<tr><td>..</td><td>Invalid name</td><td>Parent directory of the current directory</td></tr>
|
||||
<tr><td>dir1/..</td><td>Invalid name</td><td>The current directory</td></tr>
|
||||
<tr><td>/..</td><td>Invalid name</td><td>The root directory (sticks the top level)</td></tr>
|
||||
</table>
|
||||
<p>When option <tt>_STR_VOLUME_ID</tt> is specified, also pre-defined strings can be used as drive identifier in the path name instead of a numeral.</p>
|
||||
</div>
|
||||
|
||||
<p><br></p>
|
||||
<div class="para" id="uni">
|
||||
<h3>Unicode API</h3>
|
||||
<p>The path names are input/output in either ANSI/OEM code (SBCS/DBCS) or Unicode depends on the configuration options. The type of arguments which specify the file names are defined as <tt>TCHAR</tt>. It is an alias of <tt>char</tt> in default. The code set used to the file name string is ANSI/OEM specifid by <tt>_CODE_PAGE</tt>. When <tt>_LFN_UNICODE</tt> is set to 1, the type of the <tt>TCHAR</tt> is switched to <tt>WCHAR</tt> to support Unicode (UTF-16 encoding). In this case, the LFN feature is fully supported and the Unicode specific characters, such as ✝☪✡☸☭, can also be used for the path name. It also affects data types and encoding of the string I/O functions. To define literal strings, <tt>_T(s)</tt> and <tt>_TEXT(s)</tt> macro are available to select either ANSI/OEM or Unicode automatically. The code shown below is an example to define the literal strings.</p>
|
||||
<pre>
|
||||
f_open(fp, "filename.txt", FA_READ); <span class="c">/* ANSI/OEM string */</span>
|
||||
f_open(fp, L"filename.txt", FA_READ); <span class="c">/* Unicode string */</span>
|
||||
f_open(fp, _T("filename.txt"), FA_READ); <span class="c">/* Changed by configuration */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p><br></p>
|
||||
<div class="para" id="vol">
|
||||
<h3>Volume Management</h3>
|
||||
<p>The FatFs module needs dynamic work area called <em>file system object</em> for each volume (logical drive). It is registered to the FatFs module by <tt>f_mount()</tt> function. By default, each logical drive is bound to the physical drive with the same drive number and an FAT volume on the drive is serched by auto detect feature. It loads boot sectors and checks it if it is an FAT boot sector in order of sector 0 as SFD format, 1st partition, 2nd partition, 3rd partition and 4th partition as FDISK format.</p>
|
||||
<p>When <tt>_MULTI_PARTITION == 1</tt> is specified by configuration option, each individual logical drive is bound to the partition on the physical drive specified by volume management table. The volume management table must be defined by user to resolve relationship between logical drives and partitions. Following code is an example of a volume management table.</p>
|
||||
<pre>
|
||||
Example: Logical drive 0-2 are tied to three pri-partitions on the physical drive 0 (fixed disk)
|
||||
Logical drive 3 is tied to an FAT volume on the physical drive 1 (removable disk)
|
||||
|
||||
PARTITION VolToPart[] = {
|
||||
{0, 1}, <span class="c">/* Logical drive 0 ==> Physical drive 0, 1st partition */</span>
|
||||
{0, 2}, <span class="c">/* Logical drive 1 ==> Physical drive 0, 2nd partition */</span>
|
||||
{0, 3}, <span class="c">/* Logical drive 2 ==> Physical drive 0, 3rd partition */</span>
|
||||
{1, 0} <span class="c">/* Logical drive 3 ==> Physical drive 1 (auto detection) */</span>
|
||||
};
|
||||
|
||||
<img src="../img/f7.png" width="828" height="288" alt="relationship between logical drive and physical drive">
|
||||
</pre>
|
||||
<p>There are some considerations on using <tt>_MULTI_PARTITION</tt> configuration.</p>
|
||||
<ul>
|
||||
<li>Only four primary partitions can be specified. Logical partition is not supported.</li>
|
||||
<li>The physical drive that has two or more mounted partitions must be non-removable. Media change while a system operation is prohibited.</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
129
3rdparty/fatfs-0.10b/doc/en/lseek.html
vendored
129
3rdparty/fatfs-0.10b/doc/en/lseek.html
vendored
|
|
@ -1,129 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/lseek.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_lseek</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_lseek</h2>
|
||||
<p>The f_lseek function moves the file read/write pointer of an open file object. It can also be used to expand the file size (cluster pre-allocation). </p>
|
||||
|
||||
<pre>
|
||||
FRESULT f_lseek (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] File object */</span>
|
||||
DWORD <span class="arg">ofs</span> <span class="c">/* [IN] File read/write pointer */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>Pointer to the open file object.</dd>
|
||||
<dt>ofs</dt>
|
||||
<dd>Byte offset from top of the file.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_lseek()</tt> function moves the file read/write pointer of an open file. The offset can be specified in only origin from top of the file. When an offset beyond the file size is specified at write mode, the file size is expanded to the specified offset. The file data in the expanded area is undefined because no data is written to the file. This is suitable to pre-allocate a cluster chain quickly, for fast write operation. After the <tt>f_lseek()</tt> function succeeded, the current read/write pointer should be checked in order to make sure the read/write pointer has been moved correctry. In case of the current read/write pointer is not the expected value, either of followings has been occured.</p>
|
||||
<ul>
|
||||
<li>End of file. The specified <tt class="arg">ofs</tt> was clipped at end of the file because the file has been opened in read-only mode.</li>
|
||||
<li>Disk full. There is insufficient free space on the volume to expand the file.</li>
|
||||
</ul>
|
||||
<p>Fast seek feature is enabled when <tt>_USE_FASTSEEK</tt> is set to 1 and the member <tt>cltbl</tt> in the file object is not NULL. This feature enables fast backward/long seek operations without FAT access by using CLMT (cluster link map table). The fast seek feature is also applied to <tt>f_read()/f_write()</tt> function, however, the file size cannot be expanded by <tt>f_write()/f_lseek()</tt> function.</p>
|
||||
<p>The CLMT must be created in the user defined <tt>DWORD</tt> array prior to use the fast seek feature. To create the CLMT, set address of the <tt>DWORD</tt> array to the member <tt>cltbl</tt> in the file object, set the array size in unit of items into the first item and call the <tt>f_lseek()</tt> function with <tt class="arg">ofs</tt><tt> = CREATE_LINKMAP</tt>. After the function succeeded and CLMT is created, no FAT access is occured at subsequent <tt>f_read()/f_write()/f_lseek()</tt> function to the file. If the function failed with <tt>FR_NOT_ENOUGH_CORE</tt>, the given array size is insufficient for the file and number of items required is returned into the first item of the array. The required array size is (number of fragments + 1) * 2 items. For example, when the file is fragmented in 5, 12 items will be required for the CLMT.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_MINIMIZE <= 2</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<span class="c">/* Open file */</span>
|
||||
fp = malloc(sizeof (FIL));
|
||||
res = f_open(fp, "file.dat", FA_READ|FA_WRITE);
|
||||
if (res) ...
|
||||
|
||||
<span class="c">/* Move to offset of 5000 from top of the file */</span>
|
||||
res = f_lseek(fp, 5000);
|
||||
|
||||
<span class="c">/* Move to end of the file to append data */</span>
|
||||
res = f_lseek(fp, f_size(fp));
|
||||
|
||||
<span class="c">/* Forward 3000 bytes */</span>
|
||||
res = f_lseek(fp, f_tell(fp) + 3000);
|
||||
|
||||
<span class="c">/* Rewind 2000 bytes (take care on wraparound) */</span>
|
||||
res = f_lseek(fp, f_tell(fp) - 2000);
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* Cluster pre-allocation (to prevent buffer overrun on streaming write) */</span>
|
||||
|
||||
res = f_open(fp, recfile, FA_CREATE_NEW | FA_WRITE); <span class="c">/* Create a file */</span>
|
||||
|
||||
res = f_lseek(fp, PRE_SIZE); <span class="c">/* Expand file size (cluster pre-allocation) */</span>
|
||||
if (res || f_tell(fp) != PRE_SIZE) ... <span class="c">/* Check if the file has been expanded */</span>
|
||||
|
||||
res = f_lseek(fp, DATA_START); <span class="c">/* Record data stream WITHOUT cluster allocation delay */</span>
|
||||
... <span class="c">/* DATA_START and write block size should be aligned to sector boundary */</span>
|
||||
|
||||
res = f_truncate(fp); <span class="c">/* Truncate unused area */</span>
|
||||
res = f_lseek(fp, 0); <span class="c">/* Put file header */</span>
|
||||
...
|
||||
|
||||
res = f_close(fp);
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* Using fast seek feature */</span>
|
||||
|
||||
DWORD clmt[SZ_TBL]; <span class="c">/* Cluster link map table buffer */</span>
|
||||
|
||||
res = f_lseek(fp, ofs1); <span class="c">/* This is normal seek (cltbl is nulled on file open) */</span>
|
||||
|
||||
fp->cltbl = clmt; <span class="c">/* Enable fast seek feature (cltbl != NULL) */</span>
|
||||
clmt[0] = SZ_TBL; <span class="c">/* Set table size */</span>
|
||||
res = f_lseek(fp, CREATE_LINKMAP); <span class="c">/* Create CLMT */</span>
|
||||
...
|
||||
|
||||
res = f_lseek(fp, ofs2); <span class="c">/* This is fast seek */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="truncate.html">f_truncate</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
73
3rdparty/fatfs-0.10b/doc/en/mkfs.html
vendored
73
3rdparty/fatfs-0.10b/doc/en/mkfs.html
vendored
|
|
@ -1,73 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/mkfs.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_mkfs</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_mkfs</h2>
|
||||
<p>The f_mkfs fucntion creates an FAT file system on the logical drive.</p>
|
||||
<pre>
|
||||
FRESULT f_mkfs (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] Logical drive number */</span>
|
||||
BYTE <span class="arg">sfd</span>, <span class="c">/* [IN] Partitioning rule */</span>
|
||||
UINT <span class="arg">au</span> <span class="c">/* [IN] Size of the allocation unit */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>Pinter to the null-terminated string that specifies the <a href="filename.html">logical drive</a> to be formatted. If there is no drive number, it means the default drive.</dd>
|
||||
<dt>sfd</dt>
|
||||
<dd>Specifies partitioning rule (FDISK(0) or SFD(1)). This argument will be ignored on some case.</dd>
|
||||
<dt>au</dt>
|
||||
<dd>Specifies size of the allocation unit (cluter) in unit of byte. The value must be sector size * n (n is 1 to 128 and power of 2). When a zero is given, the cluster size is determined depends on the volume size.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ma">FR_MKFS_ABORTED</a>,
|
||||
<a href="rc.html#ip">FR_INVALID_PARAMETER</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_mkfs()</tt> function creates an FAT volume on the logical drive. When FDISK format is specified, a primary partition occupies the entire disk space is created and then an FAT volume is created on the partition. When SFD format is specified, the FAT volume starts from the first sector of the physical drive.</p>
|
||||
<p>If the logical drive has been bound to any partition (1-4) by multiple partition feature (<tt>_MULTI_PARTITION</tt>), the FAT volume is created into the specified partition. In this case, the second argument <tt class="arg">sfd</tt> is ignored. The physical drive must have been partitioned with <tt>f_fdisk()</tt> function or any other partitioning tool prior to use this function.</p>
|
||||
<p>Note that there are two partitioning rules, FDISK and SFD. The FDISK partitioning is usually used for harddisk, MMC, SDC, CFC and U Disk. It can divide a physical drive into one or more partitions with a partition table on the MBR. However Windows does not support multiple partition on the removable media. The SFD is non-partitioned method. The FAT volume starts from the first sector on the physical drive without partition table. It is usually used for floppy disk, Microdrive, optical disk and super-floppy media.</p>
|
||||
<p>The FAT sub-type, FAT12/FAT16/FAT32, is determined by number of clusters on the volume and nothing else, according to the FAT specification issued by Microsoft. Thus which FAT sub-type is selected, is depends on the volume size and the specified cluster size. The cluster size affects performance of the file system and large cluster increases the performance.</p>
|
||||
<p>When the number of clusters gets near the FAT sub-type boundaries, the function can fail with <tt>FR_MKFS_ABORTED</tt>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_READOLNY == 0</tt> and <tt>_USE_MKFS == 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="filename.html#vol">Volume management</a>, <a href="fdisk.html">f_fdisk</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
83
3rdparty/fatfs-0.10b/doc/en/mount.html
vendored
83
3rdparty/fatfs-0.10b/doc/en/mount.html
vendored
|
|
@ -1,83 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/mount.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_mount</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_mount</h2>
|
||||
<p>The f_mount fucntion registers/unregisters file system object to the FatFs module.</p>
|
||||
<pre>
|
||||
FRESULT f_mount (
|
||||
FATFS* <span class="arg">fs</span>, <span class="c">/* [IN] File system object */</span>
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] Logical drive number */</span>
|
||||
BYTE <span class="arg">opt</span> <span class="c">/* [IN] Initialization option */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>fs</dt>
|
||||
<dd>Pointer to the new file system object to be registered. Null pointer unregisters the registered file system object.</dd>
|
||||
<dt>path</dt>
|
||||
<dd>Pointer to the null-terminated string that specifies the <a href="filename.html">logical drive</a>. The string with no drive number means the default drive.</dd>
|
||||
<dt>opt</dt>
|
||||
<dd>Initialization option. 0: Do not mount now (to be mounted later), 1: Force mounted the volume to check if the FAT volume is available.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_mount()</tt> function registers/unregisters a file system object used for the logical drive to the FatFs module as follows:</p>
|
||||
<ol>
|
||||
<li>Determines the logical drive which specified by <tt class="arg">path</tt>.</li>
|
||||
<li>Clears and unregisters the regsitered work area of the drive.</li>
|
||||
<li>Clears and registers the new work area to the drive if <tt class="arg">fs</tt> is not NULL.</li>
|
||||
<li>Performs volume mount process to the drive if forced mount is specified.</li>
|
||||
</ol>
|
||||
<p>The file system object is the work area needed for each logical drive. It must be given to the logical drive with this function prior to use any other file functions except for <tt>f_fdisk()</tt> function. To unregister a work area, specify a NULL to the <tt class="arg">fs</tt>, and then the work area can be discarded.</p>
|
||||
<p>If forced mount is not specified, this function always succeeds regardless of the physical drive status due to delayed mount feature. It only clears (de-initializes) the given work area and registers its address to the internal table. No activity of the physical drive in this function. It can also be used to force de-initialized the registered work area of a logical drive. The volume mount processes, initialize the corresponding physical drive, find the FAT volume in it and initialize the work area, is performed in the subsequent file access functions when either or both of following condition is true.</p>
|
||||
<ul>
|
||||
<li>File system object is not initialized. It is cleared by <tt>f_mount()</tt>.</li>
|
||||
<li>Physical drive is not initialized. It is de-initialized by system reset or media removal.</li>
|
||||
</ul>
|
||||
<p>If the function with forced mount failed, it means that the file system object is registered but the volume is currently not available. Mount process will also be attempted in subsequent file access functions.</p>
|
||||
<p>If implementation of the disk I/O layer lacks media change detection, application program needs to perform a <tt>f_mount()</tt> after each media change to force cleared the file system object.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Always available.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="open.html">f_open</a></tt>, <tt><a href="sfatfs.html">FATFS</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
93
3rdparty/fatfs-0.10b/doc/en/printf.html
vendored
93
3rdparty/fatfs-0.10b/doc/en/printf.html
vendored
|
|
@ -1,93 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/printf.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_printf</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_printf</h2>
|
||||
<p>The f_printf function writes formatted string to the file.</p>
|
||||
<pre>
|
||||
int f_printf (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] File object */</span>
|
||||
const TCHAR* <span class="arg">fmt</span>, <span class="c">/* [IN] Format stirng */</span>
|
||||
...
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>Pointer to the open file object structure.</dd>
|
||||
<dt>fmt</dt>
|
||||
<dd>Pointer to the null terminated format string. The terminator charactor will not be written.</dd>
|
||||
<dt>...</dt>
|
||||
<dd>Optional arguments...</dd>
|
||||
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>When the function succeeded, it returns number of characters written. When the function failed due to disk full or any error, an <tt>EOF (-1)</tt> will be returned.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_printf()</tt> is a wrapper function of <a href="write.html"><tt>f_write()</tt></a>. The format control directive is a sub-set of standard library shown as follos:</p>
|
||||
<ul>
|
||||
<li>Type: <tt>c C s S d D u U x X b B</tt></li>
|
||||
<li>Size: <tt>l L</tt></li>
|
||||
<li>Flag: <tt>0 -</tt></li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_READONLY == 0</tt> and <tt>_USE_STRFUNC</tt> is 1 or 2. When it is set to 2, <tt>'\n'</tt>s contained in the output are converted to <tt>'\r'+'\n'</tt>.</p>
|
||||
<p>When FatFs is configured to Unicode API (<tt>_LFN_UNICODE == 1</tt>), data types on the srting fuctions, <tt>f_putc()</tt>, <tt>f_puts()</tt>, <tt>f_printf()</tt> and <tt>f_gets()</tt>, is also switched to Unicode. The character encoding on the file to be read/written via those functions is selected by <tt>_STRF_ENCODE</tt> option.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
f_printf(&fil, "%d", 1234); <span class="c">/* "1234" */</span>
|
||||
f_printf(&fil, "%6d,%3d%%", -200, 5); <span class="c">/* " -200, 5%" */</span>
|
||||
f_printf(&fil, "%ld", 12345L); <span class="c">/* "12345" */</span>
|
||||
f_printf(&fil, "%06d", 25); <span class="c">/* "000025" */</span>
|
||||
f_printf(&fil, "%06d", -25); <span class="c">/* "000-25" */</span>
|
||||
f_printf(&fil, "%-6d", 25); <span class="c">/* "25 " */</span>
|
||||
f_printf(&fil, "%u", -1); <span class="c">/* "65535" or "4294967295" */</span>
|
||||
f_printf(&fil, "%04x", 0xAB3); <span class="c">/* "0ab3" */</span>
|
||||
f_printf(&fil, "%08LX", 0x123ABCL); <span class="c">/* "00123ABC" */</span>
|
||||
f_printf(&fil, "%016b", 0x550F); <span class="c">/* "0101010100001111" */</span>
|
||||
f_printf(&fil, "%s", "String"); <span class="c">/* "String" */</span>
|
||||
f_printf(&fil, "%8s", "abc"); <span class="c">/* " abc" */</span>
|
||||
f_printf(&fil, "%-8s", "abc"); <span class="c">/* "abc " */</span>
|
||||
f_printf(&fil, "%c", 'a'); <span class="c">/* "a" */</span>
|
||||
f_printf(&fil, "%f", 10.0); <span class="c">/* f_printf lacks floating point support */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="putc.html">f_putc</a>, <a href="puts.html">f_puts</a>, <a href="gets.html">f_gets</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
87
3rdparty/fatfs-0.10b/doc/en/rc.html
vendored
87
3rdparty/fatfs-0.10b/doc/en/rc.html
vendored
|
|
@ -1,87 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/rc.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - Return Codes</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>Return Code of the File Functions</h1>
|
||||
<p>On the FatFs API, most of file functions return common result code as enum type <tt>FRESULT</tt>. When a function succeeded, it returns zero, otherwise returns non-zero value that indicates type of error.</p>
|
||||
|
||||
<dl class="ret">
|
||||
<dt id="ok">FR_OK (0)</dt>
|
||||
<dd>The function succeeded.</dd>
|
||||
<dt id="de">FR_DISK_ERR</dt>
|
||||
<dd>An unrecoverable hard error occured in the lower layer, <tt>disk_read()</tt>, <tt>disk_write()</tt> or <tt>disk_ioctl()</tt> function.<br>Note that if once this error occured at any operation to an open file, the file object is aborted and all operations to the file except for close will be rejected.</dd>
|
||||
<dt id="ie">FR_INT_ERR</dt>
|
||||
<dd>Assertion failed. An insanity is detected in the internal process. One of the following possibilities is suspected.
|
||||
<ul>
|
||||
<li>Work area (file system object, file object or etc...) is broken by stack overflow or any other application. This is the reason in most case.</li>
|
||||
<li>There is any error of the FAT structure on the volume.</li>
|
||||
</ul>
|
||||
Note that if once this error occured at any operation to an open file, the file object is aborted and all operations to the file except for close will be rejected.
|
||||
</dd>
|
||||
<dt id="nr">FR_NOT_READY</dt>
|
||||
<dd>The disk drive cannot work due to incorrect medium removal or <tt>disk_initialize()</tt> function failed.</dd>
|
||||
<dt id="nf">FR_NO_FILE</dt>
|
||||
<dd>Could not find the file.</dd>
|
||||
<dt id="np">FR_NO_PATH</dt>
|
||||
<dd>Could not find the path.</dd>
|
||||
<dt id="in">FR_INVALID_NAME</dt>
|
||||
<dd>The given string is invalid as the <a href="filename.html">path name</a>.</dd>
|
||||
<dt id="dn">FR_DENIED</dt>
|
||||
<dd>The required access was denied due to one of the following reasons:
|
||||
<ul>
|
||||
<li>Write mode open against the read-only file.</li>
|
||||
<li>Deleting the read-only file or directory.</li>
|
||||
<li>Deleting the non-empty directory or current directory.</li>
|
||||
<li>Reading the file opened without <tt>FA_READ</tt> flag.</li>
|
||||
<li>Any modification to the file opened without <tt>FA_WRITE</tt> flag.</li>
|
||||
<li>Could not create the file or directory due to the directory table is full.</li>
|
||||
<li>Could not create the directory due to the volume is full.</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="ex">FR_EXIST</dt>
|
||||
<dd>Name collision. Any object that has the same name is already existing.</dd>
|
||||
<dt id="io">FR_INVALID_OBJECT</dt>
|
||||
<dd>The file/directory object structure is invalid or a null pointer is given. All open objects of the logical drive are invalidated by the voulme mount process.</dd>
|
||||
<dt id="wp">FR_WRITE_PROTECTED</dt>
|
||||
<dd>Any write mode action against the write-protected media.</dd>
|
||||
<dt id="id">FR_INVALID_DRIVE</dt>
|
||||
<dd>Invalid drive number is specified in the path name. A null pointer is given as the path name. (Related option: <tt>_VOLUMES</tt>)</dd>
|
||||
<dt id="ne">FR_NOT_ENABLED</dt>
|
||||
<dd>Work area for the logical drive has not been registered by <tt>f_mount()</tt> function.</dd>
|
||||
<dt id="ns">FR_NO_FILESYSTEM</dt>
|
||||
<dd>There is no valid FAT volume on the drive.</dd>
|
||||
<dt id="ma">FR_MKFS_ABORTED</dt>
|
||||
<dd>The <tt>f_mkfs()</tt> function aborted before start in format due to a reason as follows:
|
||||
<ul>
|
||||
<li>The disk/partition size is too small.</li>
|
||||
<li>Not allowable cluster size for this disk. This can occure when number of clusters gets near the boundaries of FAT sub-types.</li>
|
||||
<li>There is no partition related to the logical drive. (Related option: <tt>_MULTI_PARTITION</tt>)</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="tm">FR_TIMEOUT</dt>
|
||||
<dd>The function was canceled due to a timeout of <a href="appnote.html#reentrant">thread-safe control</a>. (Related option: <tt>_TIMEOUT</tt>)</dd>
|
||||
<dt id="lo">FR_LOCKED</dt>
|
||||
<dd>The operation to the object was rejected by <a href="appnote.html#dup">file sharing control</a>. (Related option: <tt>_FS_LOCK</tt>)</dd>
|
||||
<dt id="nc">FR_NOT_ENOUGH_CORE</dt>
|
||||
<dd>Not enough memory for the operation. There is one of the following reasons:
|
||||
<ul>
|
||||
<li>Could not allocate a memory for LFN working buffer. (Related option: <tt>_USE_LFN</tt>)</li>
|
||||
<li>Size of the given CLMT buffer is insufficient for the file fragments.</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="tf">FR_TOO_MANY_OPEN_FILES</dt>
|
||||
<dd>Number of open objects has been reached maximum value and no more object can be opened. (Related option: <tt>_FS_LOCK</tt>)</dd>
|
||||
<dt id="ip">FR_INVALID_PARAMETER</dt>
|
||||
<dd>The given parameter is invalid or there is any inconsistent.</dd>
|
||||
</dl>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
125
3rdparty/fatfs-0.10b/doc/en/readdir.html
vendored
125
3rdparty/fatfs-0.10b/doc/en/readdir.html
vendored
|
|
@ -1,125 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/readdir.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_readdir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_readdir</h2>
|
||||
<p>The f_readdir function reads directory entries.</p>
|
||||
<pre>
|
||||
FRESULT f_readdir (
|
||||
DIR* <span class="arg">dp</span>, <span class="c">/* [IN] Directory object */</span>
|
||||
FILINFO* <span class="arg">fno</span> <span class="c">/* [OUT] File information structure */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>dp</dt>
|
||||
<dd>Pointer to the open directory object.</dd>
|
||||
<dt>fno</dt>
|
||||
<dd>Pointer to the file information structure to store the read item.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_readdir()</tt> function reads directory items, file and directory, in sequence. All items in the directory can be read by calling <tt>f_readdir()</tt> function repeatedly. When relative path feature is enabled (<tt>_FS_RPATH >= 1</tt>), dot entries ("." and "..") are not filtered out and they will appear in the read items. When all directory items have been read and no item to read, a null string is returned into the <tt>fname[]</tt> without any error. When a null pointer is given to the <tt class="arg">fno</tt>, the read index of the directory object is rewinded.</p>
|
||||
<p>When LFN feature is enabled, <tt>lfname</tt> and <tt>lfsize</tt> in the file information structure must be initialized with valid value prior to use it. The <tt>lfname</tt> is a pointer to the LFN read buffer. The <tt>lfsize</tt> is size of the LFN read buffer in unit of <tt>TCHAR</tt>. If the LFN is not needed, set a null pointer to the <tt>lfname</tt> and the LFN is not returned. A null string will be returned into the LFN read buffer in case of following conditions.</p>
|
||||
<ul>
|
||||
<li>The directory item has no LFN information.</li>
|
||||
<li>Either the size of read buffer or LFN working buffer is insufficient for the LFN.</li>
|
||||
<li>The LFN contains any Unicode character that cannot be converted to OEM code. (not the case at Unicode API cfg.)</li>
|
||||
</ul>
|
||||
<p>When the directory item has no LFN information, lower case characters can be contained in the <tt>fname[]</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_MINIMIZE <= 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Sample Code</h4>
|
||||
<pre>
|
||||
FRESULT scan_files (
|
||||
char* path <span class="c">/* Start node to be scanned (also used as work area) */</span>
|
||||
)
|
||||
{
|
||||
FRESULT res;
|
||||
FILINFO fno;
|
||||
DIR dir;
|
||||
int i;
|
||||
char *fn; <span class="c">/* This function is assuming non-Unicode cfg. */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
static char lfn[_MAX_LFN + 1]; <span class="c">/* Buffer to store the LFN */</span>
|
||||
fno.lfname = lfn;
|
||||
fno.lfsize = sizeof lfn;
|
||||
<span class="k">#endif</span>
|
||||
|
||||
|
||||
res = f_opendir(&dir, path); <span class="c">/* Open the directory */</span>
|
||||
if (res == FR_OK) {
|
||||
i = strlen(path);
|
||||
for (;;) {
|
||||
res = f_readdir(&dir, &fno); <span class="c">/* Read a directory item */</span>
|
||||
if (res != FR_OK || fno.fname[0] == 0) break; <span class="c">/* Break on error or end of dir */</span>
|
||||
if (fno.fname[0] == '.') continue; <span class="c">/* Ignore dot entry */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
fn = *fno.lfname ? fno.lfname : fno.fname;
|
||||
<span class="k">#else</span>
|
||||
fn = fno.fname;
|
||||
<span class="k">#endif</span>
|
||||
if (fno.fattrib & AM_DIR) { <span class="c">/* It is a directory */</span>
|
||||
sprintf(&path[i], "/%s", fn);
|
||||
res = scan_files(path);
|
||||
if (res != FR_OK) break;
|
||||
path[i] = 0;
|
||||
} else { <span class="c">/* It is a file. */</span>
|
||||
printf("%s/%s\n", path, fn);
|
||||
}
|
||||
}
|
||||
f_closedir(&dir)
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="opendir.html">f_opendir</a>, <a href="closedir.html">f_closedir</a>, <a href="stat.html">f_stat</a>, <a href="sfileinfo.html">FILINFO</a>, <a href="sdir.html">DIR</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
54
3rdparty/fatfs-0.10b/doc/en/sfatfs.html
vendored
54
3rdparty/fatfs-0.10b/doc/en/sfatfs.html
vendored
|
|
@ -1,54 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/sfatfs.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FATFS</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FATFS</h2>
|
||||
<p>The <tt>FATFS</tt> structure (file system object) holds dynamic work area of individual logical drives. It is given by application program and registerd/unregisterd to the FatFs module with <tt>f_mount()</tt> function. Initialization is done on first API call after <tt>f_mount()</tt> function or media change. Application program must not modify any member in this structure.</p>
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
BYTE fs_type; <span class="c">/* FAT sub-type (0:Not mounted) */</span>
|
||||
BYTE drv; <span class="c">/* Physical drive number */</span>
|
||||
BYTE csize; <span class="c">/* Sectors per cluster (1,2,4,...,128) */</span>
|
||||
BYTE n_fats; <span class="c">/* Number of FAT copies (1,2) */</span>
|
||||
BYTE wflag; <span class="c">/* win[] flag (b0:win[] is dirty) */</span>
|
||||
BYTE fsi_flag; <span class="c">/* FSINFO flags (b7:Disabled, b0:Dirty) */</span>
|
||||
WORD id; <span class="c">/* File system mount ID */</span>
|
||||
WORD n_rootdir; <span class="c">/* Number of root directory entries (FAT12/16) */</span>
|
||||
<span class="k">#if</span> _MAX_SS != _MIN_SS
|
||||
WORD ssize; <span class="c">/* Sector size (512,1024,2048 or 4096) */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_REENTRANT
|
||||
_SYNC_t sobj; <span class="c">/* Identifier of sync object */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> !_FS_READONLY
|
||||
DWORD last_clust; <span class="c">/* FSINFO: Last allocated cluster */</span>
|
||||
DWORD free_clust; <span class="c">/* FSINFO: Number of free clusters */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_RPATH
|
||||
DWORD cdir; <span class="c">/* Current directory start cluster (0:root) */</span>
|
||||
<span class="k">#endif</span>
|
||||
DWORD n_fatent; <span class="c">/* Number of FAT entries (== Number of clusters + 2) */</span>
|
||||
DWORD fsize; <span class="c">/* Sectors per FAT */</span>
|
||||
DWORD volbase; <span class="c">/* Volume start sector */</span>
|
||||
DWORD fatbase; <span class="c">/* FAT area start sector */</span>
|
||||
DWORD dirbase; <span class="c">/* Root directory area start sector (FAT32: Cluster#) */</span>
|
||||
DWORD database; <span class="c">/* Data area start sector */</span>
|
||||
DWORD winsect; <span class="c">/* Current sector appearing in the win[] */</span>
|
||||
BYTE win[_MAX_SS]; <span class="c">/* Disk access window for directory, FAT (and file data at tiny cfg) */</span>
|
||||
} FATFS;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
49
3rdparty/fatfs-0.10b/doc/en/sfile.html
vendored
49
3rdparty/fatfs-0.10b/doc/en/sfile.html
vendored
|
|
@ -1,49 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/sfile.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FIL</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FIL</h2>
|
||||
<p>The <tt>FIL</tt> structure (file object) holds state of an open file. It is created by <tt>f_open()</tt> function and discarded by <tt>f_close()</tt> function. Application program must not modify any member in this structure except for <tt>cltbl</tt>. Note that a sector buffer is defined in this structure at non-tiny configuration, so that the <tt>FIL</tt> structures should not be defined as auto variable.</p>
|
||||
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
FATFS* fs; <span class="c">/* Pointer to the owner file system object */</span>
|
||||
WORD id; <span class="c">/* Owner file system mount ID */</span>
|
||||
BYTE flag; <span class="c">/* File object status flags */</span>
|
||||
BYTE err; <span class="c">/* Abort flag (error code) */</span>
|
||||
DWORD fptr; <span class="c">/* File read/write pointer (Byte offset origin from top of the file) */</span>
|
||||
DWORD fsize; <span class="c">/* File size in unit of byte */</span>
|
||||
DWORD sclust; <span class="c">/* File start cluster */</span>
|
||||
DWORD clust; <span class="c">/* Current cluster */</span>
|
||||
DWORD dsect; <span class="c">/* Current data sector */</span>
|
||||
<span class="k">#if</span> !_FS_READONLY
|
||||
DWORD dir_sect; <span class="c">/* Sector containing the directory entry */</span>
|
||||
BYTE* dir_ptr; <span class="c">/* Ponter to the directory entry in the window */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _USE_FASTSEEK
|
||||
DWORD* cltbl; <span class="c">/* Pointer to the cluster link map table (Nulled on file open) */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_LOCK
|
||||
UINT lockid; <span class="c">/* Fle lock ID */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> !_FS_TINY
|
||||
BYTE buf[_MAX_SS]; <span class="c">/* File private data transfer buffer */</span>
|
||||
<span class="k">#endif</span>
|
||||
} FIL;
|
||||
</pre>
|
||||
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
70
3rdparty/fatfs-0.10b/doc/en/sfileinfo.html
vendored
70
3rdparty/fatfs-0.10b/doc/en/sfileinfo.html
vendored
|
|
@ -1,70 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/sfileinfo.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FILINFO</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FILINFO</h2>
|
||||
<p>The <tt>FILINFO</tt> structure holds a file information returned by <tt>f_readdir()</tt> and <tt>f_stat()</tt> function.</p>
|
||||
<pre>
|
||||
<span class="k">typedef struct</span> {
|
||||
DWORD fsize; <span class="c">/* File size */</span>
|
||||
WORD fdate; <span class="c">/* Last modified date */</span>
|
||||
WORD ftime; <span class="c">/* Last modified time */</span>
|
||||
BYTE fattrib; <span class="c">/* Attribute */</span>
|
||||
TCHAR fname[13]; <span class="c">/* Short file name (8.3 format) */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
TCHAR* lfname; <span class="c">/* Pointer to the LFN buffer */</span>
|
||||
int lfsize; <span class="c">/* Size of the LFN buffer in unit of TCHAR */</span>
|
||||
<span class="k">#endif</span>
|
||||
} FILINFO;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<h4>Members</h4>
|
||||
<dl>
|
||||
<dt>fsize</dt>
|
||||
<dd>Indicates size of the file in unit of byte. Always zero for directories.</dd>
|
||||
<dt>fdate</dt>
|
||||
<dd>Indicates the date that the file was modified or the directory was created.<br>
|
||||
<dl>
|
||||
<dt>bit15:9</dt>
|
||||
<dd>Year origin from 1980 (0..127)</dd>
|
||||
<dt>bit8:5</dt>
|
||||
<dd>Month (1..12)</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>Day (1..31)</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
<dt>ftime</dt>
|
||||
<dd>Indicates the time that the file was modified or the directory was created.<br>
|
||||
<dl>
|
||||
<dt>bit15:11</dt>
|
||||
<dd>Hour (0..23)</dd>
|
||||
<dt>bit10:5</dt>
|
||||
<dd>Minute (0..59)</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>Second / 2 (0..29)</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
<dt>fattrib</dt>
|
||||
<dd>Indicates the file/directory attribute in combination of <tt>AM_DIR</tt>, <tt>AM_RDO</tt>, <tt>AM_HID</tt>, <tt>AM_SYS</tt> and <tt>AM_ARC</tt>.</dd>
|
||||
<dt>fname[]</dt>
|
||||
<dd>Indicates the file/directory name in 8.3 format null-terminated string. It is always returnd with upper case in non-LFN configuration but it can be returned with lower case in LFN configuration.</dd>
|
||||
<dt>lfname</dt>
|
||||
<dd>Pointer to the LFN buffer to store the read LFN. This member must be initialized by application prior to use this structure. Set null pointer if LFN is not needed. Not available in non-LFN configuration.</dd>
|
||||
<dt>lfsize</dt>
|
||||
<dd>Size of the LFN buffer in unit of TCHAR. This member must be initialized by application prior to use this structure. Not available in non-LFN configuration.</dd>
|
||||
</dl>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
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3rdparty/fatfs-0.10b/doc/img/f6.png
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3rdparty/fatfs-0.10b/doc/img/rwtest.png
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="ja">
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<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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||||
<meta http-equiv="Content-Style-Type" content="text/css">
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||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/appnote.html">
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<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFsモジュール アプリケーション・ノート</title>
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||||
</head>
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||||
|
||||
<body>
|
||||
<h1>FatFsモジュール アプリケーション・ノート</h1>
|
||||
<ol class="toc">
|
||||
<li><a href="#port">ポーティングの際に配慮すべきこと</a></li>
|
||||
<li><a href="#limits">限界値</a></li>
|
||||
<li><a href="#memory">メモリ使用量</a></li>
|
||||
<li><a href="#reduce">モジュール・サイズの縮小</a></li>
|
||||
<li><a href="#lfn">長いファイル名</a></li>
|
||||
<li><a href="#jap">日本語ファイル名の大文字変換</a></li>
|
||||
<li><a href="#unicode">Unicode入出力への対応</a></li>
|
||||
<li><a href="#reentrant">リエントランシー</a></li>
|
||||
<li><a href="#dup">多重ファイル・アクセス</a></li>
|
||||
<li><a href="#fs1">効率的なファイル・アクセス</a></li>
|
||||
<li><a href="#fs2">フラッシュ・メモリの特性への配慮</a></li>
|
||||
<li><a href="#critical">クリチカル・セクション</a></li>
|
||||
<li><a href="#fs3">APIの拡張的使用例</a></li>
|
||||
<li><a href="#license">FatFsのライセンスについて</a></li>
|
||||
</ol>
|
||||
<hr>
|
||||
|
||||
<div class="para" id="port">
|
||||
<h3>ポーティングの際に配慮すべきこと</h3>
|
||||
|
||||
<h4>移植の際の前提条件</h4>
|
||||
<p>FatFsモジュールは移植性に関して次の点を前提としています。</p>
|
||||
<ul>
|
||||
<li>処理系はANSI C準拠であること。<br>
|
||||
FatFsモジュールはANSI C(C89)準拠で記述されているので、普通のCコンパイラなら特に処理系依存になる点はありません。</li>
|
||||
<li>char/short/longのサイズは、それぞれ8/16/32ビットで、intは16または32ビットであること。<br>
|
||||
これについても、まっとうな処理系なら問題ないはずです。FatFsモジュールで使用されるサイズを明示する整数型が integer.h 内で定義されていますが、既存の定義と衝突した場合はユーザによって解決されなければなりません。</li>
|
||||
</ul>
|
||||
|
||||
<h4>システム構成</h4>
|
||||
<p>下に示す依存関係図は、FatFsモジュール利用の組み込みシステムにおける代表的な構成を示します。</p>
|
||||
<p><img src="../img/modules.png" width="580" height="280" alt="システム構成図"></p>
|
||||
<p>(a) FatFs用に書かれたディスク・モジュールがある場合は、そのまま追加するだけです。 (b) しかし、多くの既存のディスク・モジュールはそのAPIをFatFsに合わせるため、グルー関数が必要になるでしょう。</p>
|
||||
<p><img src="../img/funcs.png" width="680" height="430" alt="functional diagram"></p>
|
||||
|
||||
<h4>ユーザの作成する関数</h4>
|
||||
<p>必要なのはFatFsモジュールの要求するディスク関数を用意することだけで、それ以外にすることはありません。既に動作しているディスク・モジュールがあるなら、そのAPIをFatFsに合わせるかグルー関数を介してつなぐだけで済みますが、無い場合はほかから移植するか最初から書くかする必要があります。定義されている全ての関数が常に必要なわけではありません。例えば、リード・オンリー構成では書き込み系関数は必要ありません。次の表に構成オプションと要求される関数の対応を示します。</p>
|
||||
<table class="lst2">
|
||||
<tr><th>必要な関数</th><th>必要となる条件</th><th>備考</th></tr>
|
||||
<tr><td>disk_status<br>disk_initialize<br>disk_read</td><td>常時</td><td rowspan="5">ffsample.zip (サンプル)<br>その他web上に多数</td></tr>
|
||||
<tr><td>disk_write<br>get_fattime<br>disk_ioctl (CTRL_SYNC)</td><td>_FS_READONLY == 0</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_COUNT)<br>disk_ioctl (GET_BLOCK_SIZE)</td><td>_USE_MKFS == 1</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_SIZE)</td><td>_MAX_SS != _MIN_SS</td></tr>
|
||||
<tr><td>disk_ioctl (CTRL_ERASE_SECTOR)</td><td>_USE_ERASE == 1</td></tr>
|
||||
<tr><td>ff_convert<br>ff_wtoupper</td><td>_USE_LFN >= 1</td><td>option/unicode.c</td></tr>
|
||||
<tr><td>ff_cre_syncobj<br>ff_rel_grant<br>ff_req_grant<br>ff_del_syncobj</td><td>_FS_REENTRANT == 1</td><td rowspan="2">option/syscall.c (サンプル)</td></tr>
|
||||
<tr><td>ff_mem_alloc<br>ff_mem_free</td><td>_USE_LFN == 3</td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para" id="limits">
|
||||
<h3>限界値</h3>
|
||||
<ul>
|
||||
<li>FATタイプ: FAT12, FAT16, FAT32。</li>
|
||||
<li>同時オープン・ファイル数: 無制限。(利用可能メモリによる)</li>
|
||||
<li>ボリューム数: 最大 10。</li>
|
||||
<li>ファイル・サイズ: FAT規格に依存。(最大 4G-1バイト)</li>
|
||||
<li>ボリューム・サイズ: FAT規格に依存。(最大 2Tバイト(512バイト/セクタ時))</li>
|
||||
<li>クラスタ・サイズ: FAT規格に依存。(最大 64Kバイト(512バイト/セクタ時))</li>
|
||||
<li>セクタ・サイズ: FAT規格に依存。(512～4096バイト)</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div class="para" id="memory">
|
||||
<h3>メモリ使用量</h3>
|
||||
<p>次の表にいくつかのターゲットにおけるメモリ使用量の例を示します。テスト時の構成オプションはその下の通りです。数値の単位はバイトで、<em>V</em>はボリューム数、<em>F</em>は同時オープン・ファイル数を示します。コンパイラの最適化オプションはコード・サイズとしています。</p>
|
||||
<table class="lst2">
|
||||
<tr><th></th><th>ARM7<small><br>32bit</small></th><th>ARM7<small><br>Thumb</small></th><th>CM3<small><br>Thumb-2</small></th><th>AVR</th><th>H8/300H</th><th>PIC24</th><th>RL78</th><th>V850ES</th><th>SH-2A</th><th>RX600</th><th>IA-32</th></tr>
|
||||
<tr class="cal"> <td>Compiler</td><td>GCC</td><td>GCC</td><td>GCC</td><td>GCC</td><td>CH38</td><td>C30</td><td>CC78K0R</td><td>CA850</td><td>SHC</td><td>RXC</td><td>VC6</td></tr>
|
||||
<tr class="cal"> <td>_WORD_ACCESS</td><td>0</td><td>0</td><td>0</td><td>1</td><td>0</td><td>0</td><td>0</td><td>1</td><td>0</td><td>1</td><td>1</td></tr>
|
||||
<!-- ARM Thumb CM3 AVR H8 PIC24 RL78 V850ES SH-2A RX600 IA-32 -->
|
||||
<tr class="lst3 ral"><td class="cal">text (Full, R/W)</td><td>10675</td><td>7171</td><td>6617</td><td>13355</td><td>10940</td><td>11722</td><td>13262</td><td>8113</td><td>9048</td><td>6032</td><td>7952</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Min, R/W)</td> <td>6727</td><td>4631</td><td>4331</td> <td>8569</td> <td>7262</td> <td>7720</td> <td>9088</td><td>5287</td><td>5800</td><td>3948</td><td>5183</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Full, R/O)</td> <td>4731</td><td>3147</td><td>2889</td> <td>6235</td> <td>5170</td> <td>5497</td> <td>6482</td><td>3833</td><td>3972</td><td>2862</td><td>3719</td></tr>
|
||||
<tr class="ral"> <td class="cal">text (Min, R/O)</td> <td>3559</td><td>2485</td><td>2295</td> <td>4575</td> <td>4064</td> <td>4240</td> <td>5019</td><td>2993</td><td>3104</td><td>2214</td><td>2889</td></tr>
|
||||
<tr class="ral"> <td class="cal">bss</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td></tr>
|
||||
<tr class="ral"> <td class="cal">Work area<br>(_FS_TINY == 0)</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*544</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td><td>V*560<br>+ F*550</td></tr>
|
||||
<tr class="ral"> <td class="cal">Work area<br>(_FS_TINY == 1)</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*32</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td><td>V*560<br>+ F*36</td></tr>
|
||||
</table>
|
||||
<pre>
|
||||
FatFs R0.10a options:
|
||||
_FS_READONLY 0 (R/W) or 1 (R/O)
|
||||
_FS_MINIMIZE 0 (Full function) or 3 (Minimized function)
|
||||
_USE_STRFUNC 0 (Disable string functions)
|
||||
_USE_MKFS 0 (Disable f_mkfs function)
|
||||
_USE_FORWARD 0 (Disable f_forward function)
|
||||
_USE_FASTSEEK 0 (Disable fast seek feature)
|
||||
_CODE_PAGE 932 (Japanese Shift-JIS)
|
||||
_USE_LFN 0 (Disable LFN feature)
|
||||
_MAX_SS 512 (Fixed sector size)
|
||||
_FS_RPATH 0 (Disable relative path feature)
|
||||
_FS_LABEL 0 (Disable volume label functions)
|
||||
_VOLUMES V (Number of logical drives to be used)
|
||||
_MULTI_PARTITION 0 (Single partition per drive)
|
||||
_FS_REENTRANT 0 (Disable thread safe)
|
||||
_FS_LOCK 0 (Disable file lock control)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para" id="reduce">
|
||||
<h3>モジュール・サイズの縮小</h3>
|
||||
<p>次の表は構成オプションの設定値によりどの機能が削除されるかを示します。</p>
|
||||
<table class="lst2">
|
||||
<tr><td rowspan="2">Function</td><td colspan="4">_FS_MINIMIZE</td><td colspan="2">_FS_READONLY</td><td colspan="2">_USE_STRFUNC</td><td colspan="3">_FS_RPATH</td><td colspan="2">_FS_LABEL</td><td colspan="2">_USE_MKFS</td><td colspan="2">_USE_FORWARD</td><td colspan="2">_MULTI_PARTITION</td></tr>
|
||||
<tr><td>0</td><td>1</td><td>2</td><td>3</td><td>0</td><td>1</td><td>0 </td><td>1/2</td><td>0</td><td>1</td><td>2</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0/1</td><td>2</td></tr>
|
||||
<tr class="lst3"><td>f_mount</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_open</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_close</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_read</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_write</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_sync</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_lseek</td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_opendir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_closedir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_readdir</td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_stat</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getfree</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_truncate</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_unlink</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_mkdir</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chmod</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_utime</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_rename</td><td></td><td>x</td><td>x</td><td>x</td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chdir</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_chdrive</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getcwd</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_getlabel</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_setlabel</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_forward</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_mkfs</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_fdisk</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td>x</td><td></td></tr>
|
||||
<tr><td>f_putc</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_puts</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_printf</td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><td>f_gets</td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para" id="lfn">
|
||||
<h3>長いファイル名</h3>
|
||||
<p>FatFsモジュールは、長いファイル名(LFN)をサポートします。ファイルに付けられた2つの異なる名前(短いファル名と長いファイル名)は、<tt>f_readdir()</tt>を除くファイル操作関数において透過です。デフォルト構成では、LFN機能はOFFになっています。LFN機能を有効にするには、<tt>_USE_LFN</tt>を1,2または3に設定し、<tt>option/unicode.c</tt>をプロジェクトに追加します。LFN機能は、加えてある程度のワーク・エリア(LFN操作バッファ)を必要とします。バッファ長は使用できるメモリに応じて<tt>_MAX_LFN</tt>オプションで構成されることができます。LFNの長さは最大255文字に達するので、LFN完全対応のためには<tt>_MAX_LFN</tt>は255に設定されるべきです。与えられたファイル名に対してバッファ長が不足した場合、ファイル関数は<tt>FR_INVALID_NAME</tt>で失敗します。</p>
|
||||
<p>ファイル関数に再入を行う条件の下でLFN機能を使用する場合は、<tt>_USE_LFN</tt>は2または3に設定されなければなりません。この場合、ファイル関数はワーク・エリアを動的に確保(スタックまたはヒープ)します。バッファ・サイズは、<tt>(_MAX_LFN + 1) * 2</tt>バイトになるので、スタック等のサイズはそれを考慮した十分なサイズでなければなりません。</p>
|
||||
<table class="lst2 rset">
|
||||
<caption>LFN cfg on ARM7</caption>
|
||||
<tr><th>コードページ</th><th>コードサイズ[bytes]</th></tr>
|
||||
<tr><td>SBCS</td><td>+3721</td></tr>
|
||||
<tr><td>932(Shift-JIS)</td><td>+62609</td></tr>
|
||||
<tr><td>936(GBK)</td><td>+177797</td></tr>
|
||||
<tr><td>949(Korean)</td><td>+139857</td></tr>
|
||||
<tr><td>950(Big5)</td><td>+111497</td></tr>
|
||||
</table>
|
||||
<p>LFN機能の上手な使い方は、それを使わないということです。実際、組み込み用途ではLFN機能がどうしても必要になるということはほとんど無いはずです。LFNを有効にすると、選択されたコード・ページに応じてモジュール・サイズが増大されます。右の表に各コード・ページにおけるLFNを有効にしたときのモジュール・サイズの違いを示します。特に、CJK地域では数万の文字が使われていますが、不幸なことにそれは巨大なOEM－Unicode相互変換テーブルを要求し、モジュール・サイズは劇的に増大されます。その結果、それらのコード・ページにおいてLFNを有効にしたFatFsモジュールは、AVRを含む殆どの8ビット・マイコンにインプリメントされることができません。</p>
|
||||
<p>LFN機能のハードルはそれだけではありません。マイクロソフト社はFATファイル・システムについていくつかの特許を保有しています。いずれもLFN機能の実装に関するもので、その利用に対して$0.25/unitのライセンス料を要求しています。このため、商用製品でLFN機能を利用するときは、最終仕向地によってはライセンスが必要になります。最近のFAT32ドライバの多くはLFN機能を含んでいるため、それらの使用に当たってライセンスが必要になりますが、FatFsではLFN機能を構成オプションで任意にON/OFFできるため、無効にしてライセンス問題を回避することもできます。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="jap">
|
||||
<h3>日本語ファイル名の大文字変換</h3>
|
||||
<p>CP932(Shift_JIS)でかつ非LFN構成のときは、拡張文字の小文字(2バイト英字・キリル文字・ギリシャ文字)に対して大文字変換を行わず、小文字のままSFNエントリに記録・検索されます(日本語MSDOS仕様)。このため、非LFN構成で全角小文字を含むファイルを作成すると、NT系Windowsでそのファイルを開けなくなります。LFN構成では大文字変換を行います(NT系Windows仕様)。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="unicode">
|
||||
<h3>Unicode入出力への対応</h3>
|
||||
<p>FatFs API上におけるファイル名等の文字列データの入出力は、デフォルトではANSI/OEMコードで行われますが、これをUnicode(UTF-16)に切り替えることもできます(<tt>_LFN_UNICODE</tt>オプションで設定)。つまり、これはFatFsがLFN機能に完全対応していることを意味します。Unicodeのファイル名に関する詳細は、<a href="filename.html">ファイル名</a>を参照してください。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="reentrant">
|
||||
<h3>リエントランシー</h3>
|
||||
<p>互いに異なるボリュームに対するファイル操作はリエントラントで、常に同時平行に動作できます。同じボリュームに対してはデフォルトではリエントラントではありませんが、<tt>_FS_REENTRANT</tt>オプションでリエントラント(スレッド・セーフ)にすることはできます。この場合、OS依存の同期オブジェクト操作関数<tt>ff_cre_syncobj(), ff_del_syncobj(), ff_req_grant(), ff_rel_grant()</tt>もまたプロジェクトに追加されなければなりません。サンプル・コードと解説は<tt>option/syncobj.c</tt>にあります。</p>
|
||||
<p>この場合、あるタスクがボリュームを使用中に他のタスクからそのボリュームに対するファイル関数が呼び出されると、そのアクセスは先のタスクがファイル関数を抜けるまでブロックされます。もし、待ち時間が<tt>_TIMEOUT</tt>で指定された期間を越すと、その関数は<tt>FR_TIMEOUT</tt>でアボートします。いくつかのRTOSではタイムアウト機能はサポートされないかも知れません。</p>
|
||||
<p>ひとつの例外が<tt>f_mount(), f_mkfs(), f_fdisk()</tt>にあります。これらの関数は同じボリューム(または関連する物理ドライブ)に対してリエントラントではありません。これらの関数を使用するときは、アプリケーション・レベルで排他制御しなければなりません。</p>
|
||||
<p>注: このセクションはFatFsモジュールそれ自体のリエントランシーについて説明しています。その下位のディスクI/Oモジュールのリエントランシーに関しては何の前提もありません。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="dup">
|
||||
<h3>多重ファイル・アクセス</h3>
|
||||
<p>FatFsモジュールではデフォルトでは多重アクセス制御機能をサポートしていません。ファイルに対する多重アクセスは、そのアクセス・モードによって制限されます。一つのファイルに対する多重オープンは、それらが全てリード・モードのときに限って許可されます。書き込みモードを含む多重オープン、また開かれているファイルに対するリネームや削除を行ってはなりません。さもないと、そのボリュームのFAT構造が破壊される可能性があります。</p>
|
||||
<p><tt>_FS_LOCK</tt>に1以上の値(値は同時に管理できるファイル数)をセットすることで多重アクセス制御機能が有効になり、ファイル単位のアクセス制御を自動で行うこともできます。この場合、上記のルールを破ったオープン・リネーム・削除を試みると、その関数は<tt>FR_LOCKED</tt>で失敗します。また、<tt>_FS_LOCK</tt>を越える数のファイルやサブ・ディレクトリを同時にオープンしようとすると、<tt>FR_TOO_MANY_OPEN_FILES</tt>で失敗します。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs1">
|
||||
<h3>効率的なファイル・アクセス</h3>
|
||||
<p>小規模な組込システムでのファイルの読み書きにおける効率の良いアクセスのため、アプリケーション・プログラマはFatFsモジュールの中でどのような処理が行われているか考慮すべきです。ストレージ上のデータは<tt>f_read()</tt>により次のシーケンスで転送されます。</p>
|
||||
<p>図1. セクタ・ミスアラインド・リード (ショート)<br>
|
||||
<img src="../img/f1.png" width="490" height="110" alt="fig.1">
|
||||
</p>
|
||||
<p>図2. セクタ・ミスアラインド・リード (ロング)<br>
|
||||
<img src="../img/f2.png" width="490" height="140" alt="fig.2">
|
||||
</p>
|
||||
<p>図3. セクタ・アラインド・リード<br>
|
||||
<img src="../img/f3.png" width="490" height="119" alt="fig.3">
|
||||
</p>
|
||||
<p>ファイルI/Oバッファはセクタの一部のデータを読み書きするためのセクタ・バッファを意味します。セクタ・バッファは、それぞれのファイル・オブジェクト内のプライベート・セクタ・バッファまたはファイル・システム・オブジェクト内の共有セクタ・バッファのどちらかです。バッファ構成オプションの<tt>_FS_TINY</tt>は、データ転送にどちらを使うかを決定します。タイニー・バッファ(1)が選択されるとデータ・メモリの消費はそれぞれのファイル・オブジェクトで512バイト減少されます。この場合、FatFsモジュールはファイル・データの転送とFAT/ディレクトリ・アクセスにファイル・システム・オブジェクト内のセクタ・バッファだけを使用します。タイニー・バッファの欠点は、セクタ・バッファにキャッシュされたFATデータがファイル・データの転送により失われ、クラスタ境界の毎にリロードされなければならないことです。でも、悪くない性能と少ないメモリ消費の視点から多くのアプリケーションに適するでしょう。</p>
|
||||
<p>図1はセクタの一部のデータがファイルI/Oバッファを経由で転送されることを示します。図2に示される長いデータの転送では、転送データの中間の1セクタまたはそれ以上のセクタにまたがる転送データがアプリケーション・バッファに直接転送されています。図3は転送データ全体がセクタ境界にアライメントされている場合を示しています。この場合、ファイルI/Oバッファは使用されません。直接転送においては最大の範囲のセクタが<tt>disk_read()</tt>で一度に読み込まれますが、クラスタ境界を越えるマルチ・セクタ転送はそれが隣接であっても行われません。</p>
|
||||
<p>このように、セクタにアライメントしたファイルの読み書きへの配慮はバッファ経由のデータ転送を避け、読み書き性能は改善されるでしょう。その効果に加え、タイニー構成でキャッシュされたFATデータがファイル・データの転送によりフラッシュされず、非タイニー構成と同じ性能を小さなメモリ・フットプリントで達成できます。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs2">
|
||||
<h3>フラッシュ・メモリの特性への配慮</h3>
|
||||
<p>HDDなどのディスク・メディアとは異なり、SDCやCFCなどのフラッシュ・メモリ・メディアの性能を引き出すには、その特性を意識した制御が必要になります。</p>
|
||||
<h4>マルチ・セクタ書き込み</h4>
|
||||
<div class="rset">
|
||||
図6. マルチ/シングル・セクタ・ライトの比較<br>
|
||||
<img src="../img/f6.png" width="630" height="148" alt="fig.6">
|
||||
</div>
|
||||
<p>フラッシュ・メモリ・メディアの書き込み速度はシングル・セクタ書き込みの時に最も低いものになり、一回のトランザクションで転送されるセクタ数が大きくなるほど書き込み速度は向上します。この効果はバス速度が高速になるほど顕著で、10倍以上の差が現れることも珍しくありません。<a href="../img/rwtest2.png">テスト結果</a>は、マルチ・セクタ書き込み(W:16K, 32 sectors)がシングル・セクタ書き込み(W:100, 1 sector)よりどの程度速いかを明確に示しています。大容量メディアほどシングル・セクタ書き込みが遅くなる点もまた重要です。書き込みトランザクションの回数はまた、メディアの寿命にも影響してきます。このため、アプリケーションはなるべく大きなブロック(クラスタ・サイズまたは2の累乗セクタ境界にアライメントした)で読み書きを行う必要があります。もちろん、アプリケーションからメディアに至る全てのレイヤがマルチ・セクタ転送に対応していないと意味がありません。残念ながら、既存のオープン・ソースのドライバの多くはマルチ・セクタ転送に未対応です。なお、FatFsモジュールおよびサンプル・ドライバはマルチ・セクタ転送に対応しています。</p>
|
||||
<h4>明示的なメモリ消去</h4>
|
||||
<p>通常のファイル消去では、記録されたデータに対して何らかの制御が行われるわけではなく、単にFAT上に未使用クラスタとして記録されているだけです。このため、ファイルが消去されたあともそれらは有効なメモリ・ブロックとしてフラッシュ・メモリ上に残ります。そこで、ファイルを消去するとき、占有していたデータ・セクタを明示的に消去(つまり未使用ブロックにする)することにより、メディア内の空きブロックを増やすことができます。これにより、次にそのブロックに書き込むときの消去動作が無くなり、書き込み性能が向上する可能性があります。また、ウェアレベリングに使えるブロックが増え、メディアの耐久性も向上するかも知れません。この機能を有効にするには、構成オプションの<tt>_USE_ERASE</tt>に1を設定します。これはフラッシュ・メモリ・メディアの内部動作に期待した制御なので、効果があるとは限りません。また、ファイル消去の時間が延びることも考慮に入れるべきです。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="critical">
|
||||
<h3>クリチカル・セクション</h3>
|
||||
<p>ストレージ上のFAT構造を操作している途中で、停電、不正なメディアの取り外し、回復不能なデータ・エラー等の障害が発生すると、処理が中途半端な状態で中断され、その結果としてFATボリュームの構造が破壊される可能性があります。次にFatFsモジュールにおけるクリチカル・セクションと、その間の障害により起きうるエラーの状態を示します。</p>
|
||||
<div class="lset">
|
||||
図4. 長いクリチカル・セクション<br>
|
||||
<img src="../img/f4.png" width="320" height="436" alt="fig.4">
|
||||
</div>
|
||||
<div class="lset">
|
||||
図5. 最小化したクリチカル・セクション<br>
|
||||
<img src="../img/f5.png" width="320" height="436" alt="fig.5">
|
||||
</div>
|
||||
<br class="clr">
|
||||
<p>赤で示したセクションを実行中に障害が発生した場合、クロス・リンクが発生して操作対象のファイル・ディレクトリが失われる可能性があります。黄色で示したセクションを実行中に障害が発生した場合、つぎのうちいずれかまたは複数の結果が生じる可能性があります。</p>
|
||||
<ul>
|
||||
<li>書き換え中のファイルのデータが破壊される。</li>
|
||||
<li>追記中のファイルがオープン前の状態に戻る。</li>
|
||||
<li>新規に作成されたファイルが消える。</li>
|
||||
<li>新規または上書きで作成されたファイルの長さがゼロになって残る。</li>
|
||||
<li>ロストチェーンの発生によりボリュームの利用効率が悪化する。</li>
|
||||
</ul>
|
||||
<p>いずれも書き込み中や操作の対象でないファイルには影響はありません。これらのクリチカル・セクションは、ファイルを書き込みモードで開いている時間を最小限にするか、<tt>f_sync()</tt>を適宜使用することで図5のようにリスクを最小化することができます。</p>
|
||||
</div>
|
||||
|
||||
<div class="para" id="fs3">
|
||||
<h3>APIの拡張的使用例</h3>
|
||||
<p>FatFs APIの拡張的使用例です。有用なコードがあった場合は、随時追加していきます。。</p>
|
||||
<ol>
|
||||
<li><a href="../img/app1.c">追記モードでのオープン/新規作成</a></li>
|
||||
<li><a href="../img/app2.c">ディレクトリを空にする</a></li>
|
||||
<li><a href="../img/app3.c">ファイルに連続領域を割り当てる</a></li>
|
||||
<li><a href="../img/app4.c">ディスクI/Oモジュールの機能/互換性チェッカー</a></li>
|
||||
<li><a href="../img/mkfatimg.zip">FATイメージ作成ツール</a></li>
|
||||
</ol>
|
||||
</div>
|
||||
|
||||
<div class="para" id="license">
|
||||
<h3>FatFsのライセンスについて</h3>
|
||||
<p>ソース・ファイルのヘッダにライセンス条件が記述されているので、利用の際はそれに従うこと。英語を読めない方のために以下に日本語訳を示しておきます。</p>
|
||||
<pre>/*----------------------------------------------------------------------------/
|
||||
/ FatFs - FAT file system module R0.10b (C)ChaN, 2014
|
||||
/-----------------------------------------------------------------------------/
|
||||
/ FatFsモジュールは、小規模な組み込みシステム向けの汎用FATファイルシステム・
|
||||
/ モジュールです。これはフリー・ソフトウェアとして、教育・研究・開発のために
|
||||
/ 以下のライセンス・ポリシーの下で公開されています。
|
||||
/
|
||||
/ Copyright (C) 2014, ChaN, all right reserved.
|
||||
/
|
||||
/ * FatFsモジュールはフリー・ソフトウェアであり、また<em>無保証です</em>。
|
||||
/ * 用途に制限はありません。<em>あなたの責任の下において</em>、個人的・非営利的な
|
||||
/ ものから商用製品の開発に及ぶ目的に使用・改変・再配布することができます。
|
||||
/ * ソース・コードを再配布するときは、上記の著作権表示を保持しなければなりません。
|
||||
/
|
||||
/-----------------------------------------------------------------------------/</pre>
|
||||
<p>要するにFatFsはタダで自由に使えるということです。ソース・コードを再配布するときは、このブロックをそのまま保持しておくこと。このようにFatFsはBSDライクなライセンスとしていますが、一つ大きな違いがあります。特に組み込み用途での利用価値を高めるため、バイナリ形式(ソース・コードを含まない形式全て)での再配布については、条件は設けていません。その場合は、FatFsおよびそのライセンス文書についてはドキュメントに明記してもしなくてもかまいません。これは、一条項BSDライセンスと等価ということです。もちろんGNU GPLプロジェクトとも共存可能です。何らかの変更を加えて再配布する際は、矛盾しない他のライセンス(GNU GPLや修正BSDライセンスなど)に変更することも可能です。</p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
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3rdparty/fatfs-0.10b/doc/ja/chdir.html
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|
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|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/chdir.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_chdir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_chdir</h2>
|
||||
<p>カレント・ディレクトリを変更します。</p>
|
||||
<pre>
|
||||
FRESULT f_chdir (
|
||||
const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] ディレクトリ名へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>移動対象のディレクトリの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列を指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>各ボリュームのカレント・ディレクトリを変更します。カレント・ディレクトリは、そのボリュームのマウント動作が行われたとき、ルート・ディレクトリに初期設定されます。カレント・ディレクトリは、ファイル・システム・オブジェクトに保持されるため、そのボリュームを使用する全てのタスクに対して影響を与えます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_RPATH == 1</tt>のときに使用可能となります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para exa">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* カレント・ドライブのカレント・ディレクトリを変更 (ルート下のdir1へ) */</span>
|
||||
f_chdir("/dir1");
|
||||
|
||||
<span class="c">/* ドライブ2のカレント・ディレクトリを変更 (親ディレクトリへ) */</span>
|
||||
f_chdir("2:..");
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="chdrive.html">f_chdrive</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
61
3rdparty/fatfs-0.10b/doc/ja/chdrive.html
vendored
61
3rdparty/fatfs-0.10b/doc/ja/chdrive.html
vendored
|
|
@ -1,61 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/chdrive.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_chdrive</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_chdrive</h2>
|
||||
<p>カレント・ドライブを変更します。</p>
|
||||
<pre>
|
||||
FRESULT f_chdrive (
|
||||
const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] 対象ドライブを指定します */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>カレント・ドライブに設定する<a href="filename.html">論理ドライブ番号</a>を指定するパス名を指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>カレント・ドライブを変更します。システム起動時の初期値はドライブ0です。この設定はFatFsモジュールの静的変数に記録されるため、全てのタスクに対して影響を与えます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_RPATH == 1</tt>で、且つ<tt>_VOLUMES > 1</tt>のときに使用可能となります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="chdir.html">f_chdir</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
83
3rdparty/fatfs-0.10b/doc/ja/chmod.html
vendored
83
3rdparty/fatfs-0.10b/doc/ja/chmod.html
vendored
|
|
@ -1,83 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/chmod.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_chmod</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_chmod</h2>
|
||||
<p>ファイルまたはサブ・ディレクトリの属性を変更します。</p>
|
||||
<pre>
|
||||
FRESULT f_chmod (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] オブジェクト名へのポインタ */</span>
|
||||
BYTE <span class="arg">attr</span>, <span class="c">/* [IN] 設定値 */</span>
|
||||
BYTE <span class="arg">mask</span> <span class="c">/* [IN] 変更マスク */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>属性変更対象のオブジェクトの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列を指定します。</dd>
|
||||
<dt>attr</dt>
|
||||
<dd>設定する属性。指定可能な属性は次の通りで、これらの組み合わせで指定します。指定されなかった属性は解除されます。<br>
|
||||
<table class="lst">
|
||||
<tr><th>値</th><th>意味</th></tr>
|
||||
<tr><td>AM_RDO</td><td>リード・オンリー</td></tr>
|
||||
<tr><td>AM_ARC</td><td>アーカイブ</td></tr>
|
||||
<tr><td>AM_SYS</td><td>システム</td></tr>
|
||||
<tr><td>AM_HID</td><td>ヒドゥン</td></tr>
|
||||
</table>
|
||||
</dd>
|
||||
<dt>mask</dt>
|
||||
<dd>変更する属性のマスク。指定した属性が設定または解除され、指定されなかった属性は状態が保持されます。<tt class="arg">attr</tt>と同じ値を使います。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#lo">FR_LOCKED</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* リードオンリーをセット、アーカイブをクリア、その他は変更しない */</span>
|
||||
f_chmod("file.txt", AM_RDO, AM_RDO | AM_ARC);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
66
3rdparty/fatfs-0.10b/doc/ja/close.html
vendored
66
3rdparty/fatfs-0.10b/doc/ja/close.html
vendored
|
|
@ -1,66 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/close.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_close</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_close</h2>
|
||||
<p>ファイルを閉じます。</p>
|
||||
<pre>
|
||||
FRESULT f_close (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクトへのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>閉じようとするファイルのファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ファイルを閉じます。何らかの書き込みの行われたファイルの場合、キャッシュされた状態(リード/ライト・バッファ上のデータ、変更されたFATやディレクトリ項目)はディスクに書き戻されます。関数が正常終了すると、そのファイル・オブジェクトは無効になり、そのメモリも解放できます。</p>
|
||||
<p>ファイル・オブジェクトが読み出し専用モードで、<tt>_FS_LOCK</tt>オプションが選択されていない場合は、ファイルを閉じずにファイル・オブジェクトを破棄することもできます。しかし、これは将来の互換性の点で推奨はされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>全ての構成で使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<tt><a href="open.html">f_open</a>, <a href="read.html">f_read</a>, <a href="write.html">f_write</a>, <a href="sync.html">f_sync</a>, <a href="sfile.html">FIL</a>, <a href="sfatfs.html">FATFS</a></tt>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
64
3rdparty/fatfs-0.10b/doc/ja/closedir.html
vendored
64
3rdparty/fatfs-0.10b/doc/ja/closedir.html
vendored
|
|
@ -1,64 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/close.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_closedir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_closedir</h2>
|
||||
<p>ディレクトリを閉じます。</p>
|
||||
<pre>
|
||||
FRESULT f_closedir (
|
||||
DIR* <span class="arg">dp</span> <span class="c">/* [IN] ディレクトリ・オブジェクトへのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>dp</dt>
|
||||
<dd>閉じようとするディレクトリのディレクトリ・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ディレクトリを閉じます。関数が正常終了すると、そのディレクトリ・オブジェクトは無効になり、そのメモリも解放できます。</p>
|
||||
<p><tt>_FS_LOCK</tt>オプションが選択されていない場合は、この処理を行わずにディレクトリ・オブジェクトを破棄することもできます。しかし、これは将来の互換性の点で推奨はされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_MINIMIZE <= 1</tt>のとき使用可能になります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<tt><a href="opendir.html">f_opendir</a>, <a href="readdir.html">f_readdir</a>, <a href="sdir.html">DIR</a></tt>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
46
3rdparty/fatfs-0.10b/doc/ja/dinit.html
vendored
46
3rdparty/fatfs-0.10b/doc/ja/dinit.html
vendored
|
|
@ -1,46 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/dinit.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_initialize</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_initialize</h2>
|
||||
<p>ストレージ・デバイスを初期化します。</p>
|
||||
<pre>
|
||||
DSTATUS disk_initialize (
|
||||
BYTE <span class="arg">pdrv</span> <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>対象のデバイスを示す物理ドライブ番号(0-9)が指定されます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>この関数は戻り値としてディスク・ステータスを返します。ディスク・ステータスの詳細に関しては<tt><a href="dstat.html">disk_status()</a></tt>を参照してください。</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ストレージ・デバイスを初期化し、データの読み書きなど全ての動作が可能な状態にします。関数が成功すると、戻り値の<tt>STA_NOINIT</tt>フラグがクリアされます。</p>
|
||||
<p><em>アプリケーションからはこの関数を呼び出してはなりません。さもないと、FATボリュームが破壊される可能性があります。エラー等により再初期化が必要なときは、<tt>f_mount()</tt>を使用してください。</em>FatFsモジュールは、自動マウント動作により、必要に応じてこの関数を呼び出します。</p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
95
3rdparty/fatfs-0.10b/doc/ja/dioctl.html
vendored
95
3rdparty/fatfs-0.10b/doc/ja/dioctl.html
vendored
|
|
@ -1,95 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/dioctl.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_ioctl</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_ioctl</h2>
|
||||
<p>一般的なデータ読み書き以外のストレージ・デバイス自体に対する様々な制御を行います。</p>
|
||||
<pre>
|
||||
DRESULT disk_ioctl (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
BYTE <span class="arg">cmd</span>, <span class="c">/* [IN] 制御コマンド */</span>
|
||||
void* <span class="arg">buff</span> <span class="c">/* [I/O] データ受け渡しバッファ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>対象のデバイスを示す物理ドライブ番号(0-9)が指定されます。</dd>
|
||||
<dt>cmd</dt>
|
||||
<dd>制御コマンド・コードが指定されます。</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>制御コマンドに依存したパラメータを授受するバッファを指すポインタが指定されます。パラメータの授受のないコマンドの場合は、値に意味はありません。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<dl class="ret">
|
||||
<dt>RES_OK (0)</dt>
|
||||
<dd>正常終了。</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>何らかのエラーが発生した。</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
<dd>コマンドが不正。</dd>
|
||||
<dt>RES_NOTRDY</dt>
|
||||
<dd>ドライブが動作可能状態ではない、または初期化されていない。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ストレージ・デバイスの種類によりサポートされるコマンドは異なりますが、FatFsモジュール自体は、次の汎用コマンドのみ使用し、特定のデバイスに依存した制御は行いません。</p>
|
||||
<table class="lst">
|
||||
<caption>標準ioctlコマンド</caption>
|
||||
<tr><th>コマンド</th><th>解説</th></tr>
|
||||
<tr><td>CTRL_SYNC</td><td>ストレージ・デバイスのデータ書き込み処理を完了させます。ライト・バック・キャッシュなどが存在する場合は、書き込まれていないデータを即時書き込みます。メディア上への書き込みがそれぞれ<tt>disk_write()</tt>の内で完了する場合は、このコマンドに対してすることはありません。</td></tr>
|
||||
<tr><td>GET_SECTOR_COUNT</td><td><tt class="arg">buff</tt>の指す<tt>DWORD</tt>型変数にドライブ上の総セクタ数を返します。<tt>f_mkfs()</tt>および<tt>f_fdisk()</tt>内から呼び出され、作成するボリュームのサイズを決定するために使用されます。</td></tr>
|
||||
<tr><td>GET_SECTOR_SIZE</td><td><tt class="arg">buff</tt>の指す<tt>WORD</tt>型変数にドライブのセクタ・サイズを返します。有効値は512、1024、2048または4096です。セクタ・サイズ固定構成(<tt>_MAX_SS ==_MIN_SS</tt>)のときはこのコマンドは使われることはなく、常にそのセクタ・サイズで動作しなければなりません。</td></tr>
|
||||
<tr><td>GET_BLOCK_SIZE</td><td><tt class="arg">buff</tt>の指す<tt>DWORD</tt>型変数にフラッシュ・メモリの消去ブロック・サイズ(セクタ単位)を返します。1から32768の範囲で2の累乗の値でなければなりません。不明な場合またはフラッシュ・メモリ以外のメディアでは1を返します。<tt>f_mkfs()</tt>内でのみ使用され、ボリュームのデータ領域はこの境界にアライメントされます。</td></tr>
|
||||
<tr><td>CTRL_ERASE_SECTOR</td><td>フラッシュ・メモリ上の領域の明示的消去。<tt class="arg">buff</tt>の指す<tt>DWORD</tt>型配列には消去する領域 {開始セクタ,終了セクタ} を指定して呼び出されます。<tt>_USE_ERASE</tt>が1のとき、クラスタが解放されるときに呼び出されます。これは、ATAコマンド・セットのTrimコマンドと等価で、この機能をサポートしない場合は何もする必要はありません。また、戻り値はチェックされず、消去が完全に行われなかったとしてもFatFsの動作には影響ありません。</td></tr>
|
||||
</table>
|
||||
|
||||
<p>FatFs自体はデバイス依存コマンドやユーザ定義コマンドは一切使用しませんが、アプリケーションから何らかのデバイス制御が行えると便利なことがあります。アプリケーション上で標準以外の制御が必要なときは、必要に応じてユーザ定義コマンドを追加して利用するとよいでしょう。次にコマンドの例を示します。</p>
|
||||
<table class="lst">
|
||||
<caption>ユーザ定義ioctlコマンドの例</caption>
|
||||
<tr><th>コマンド</th><th>解説</th></tr>
|
||||
<tr><td>CTRL_FORMAT</td><td>メディアの物理フォーマットを行います。<tt class="arg">buff</tt>はNULLでないとき、進行表示のためのコールバック関数のアドレスを示します。</td></tr>
|
||||
<tr><td>CTRL_POWER_IDLE</td><td>デバイスをアイドル状態にします。通常の読み書き要求でアクティブ状態に戻るなら、<tt>STA_NOINIT</tt>フラグをセットする必要はありません。</td></tr>
|
||||
<tr><td>CTRL_POWER_OFF</td><td>デバイスをシャットダウン状態にします。<tt>STA_NOINIT</tt>はセットされます。デバイスは<tt>disk_initialize()</tt>でアクティブ状態に戻ります。</td></tr>
|
||||
<tr><td>CTRL_LOCK</td><td>ユーザによるメディアの取り出しを禁止します。</td></tr>
|
||||
<tr><td>CTRL_UNLOCK</td><td>ユーザによるメディアの取り出しを許可します。</td></tr>
|
||||
<tr><td>CTRL_EJECT</td><td>メディアを排出します。完了後、<tt>STA_NOINIT</tt>と<tt>STA_NODISK</tt>フラグはセットされます。</td></tr>
|
||||
<tr><td>MMC_GET_TYPE</td><td>カード・タイプを示すフラグ(b0:MMCv3, b1:SDv1, b2:SDv2+, b3:LBA)を<tt class="arg">buff</tt>の示す<tt>BYTE</tt>変数に読み出します。(MMC/SDカード専用)</td></tr>
|
||||
<tr><td>MMC_GET_CSD</td><td>CSDレジスタの内容を<tt class="arg">buff</tt>の示す16バイトのバッファに読み出します。(MMC/SDカード専用)</td></tr>
|
||||
<tr><td>MMC_GET_CID</td><td>CIDレジスタの内容を<tt class="arg">buff</tt>の示す16バイトのバッファに読み出します。(MMC/SDカード専用)</td></tr>
|
||||
<tr><td>MMC_GET_OCR</td><td>OCRレジスタの内容を<tt class="arg">buff</tt>の示す4バイトのバッファに読み出します。(MMC/SDカード専用)</td></tr>
|
||||
<tr><td>MMC_GET_SDSTAT</td><td>SD STATUSレジスタの内容を<tt class="arg">buff</tt>の示す64バイトのバッファに読み出します。(SDカード専用)</td></tr>
|
||||
<tr><td>ATA_GET_REV</td><td>リビジョン・コードを<tt class="arg">buff</tt>の示す16バイトのバッファに読み出します。(ATA/CFカード専用)</td></tr>
|
||||
<tr><td>ATA_GET_MODEL</td><td>モデル・コードを<tt class="arg">buff</tt>の示す40バイトのバッファに読み出します。(ATA/CFカード専用)</td></tr>
|
||||
<tr><td>ATA_GET_SN</td><td>シリアル番号を<tt class="arg">buff</tt>の示す20バイトのバッファに読み出します。(ATA/CFカード専用)</td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>リード・オンリー構成で、かつセクタ・サイズ固定構成のときは、この関数は必要とされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
71
3rdparty/fatfs-0.10b/doc/ja/dread.html
vendored
71
3rdparty/fatfs-0.10b/doc/ja/dread.html
vendored
|
|
@ -1,71 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/dread.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_read</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_read</h2>
|
||||
<p>ストレージ・デバイスからデータを読み出します。</p>
|
||||
<pre>
|
||||
DRESULT disk_read (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
BYTE* <span class="arg">buff</span>, <span class="c">/* [OUT] 読み出しバッファへのポインタ */</span>
|
||||
DWORD <span class="arg">sector</span>, <span class="c">/* [IN] 読み出し開始セクタ番号 */</span>
|
||||
UINT <span class="arg">count</span> <span class="c">/* [IN] 読み出すセクタ数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>対象のデバイスを示す物理ドライブ番号(0-9)が指定されます。</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>ストレージ・デバイスから読み出したデータを格納する<em>バイト配列</em>が指定されます。</dd>
|
||||
<dt>sector</dt>
|
||||
<dd>読み出しを開始するセクタ番号。LBAで指定されます。</dd>
|
||||
<dt>count</dt>
|
||||
<dd>読み出すセクタ数。FatFsからの呼び出しでは1～128の範囲に限られます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<dl class="ret">
|
||||
<dt>RES_OK (0)</dt>
|
||||
<dd>正常終了。</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>読み込み中にエラーが発生し、その回復にも失敗した。</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
<dd>パラメータが不正。</dd>
|
||||
<dt>RES_NOTRDY</dt>
|
||||
<dd>ドライブが動作可能状態ではない（初期化されていない）。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p><tt class="arg">buff</tt>は<tt>BYTE</tt>型なので、指定されるアドレスは<em>常にワード・アライメントされているとは限りません</em>。非アライメント・アドレスへの転送は、<a href="appnote.html#fs1">直接転送</a>において発生することがあります。もしも、ハードウェア上の制約でそのような転送が不可能なときは、この関数内で二段転送するなどして解決するか、または別の方法で対応しなければなりません。次にいくつかの対応方法を示します(いずれか一つでOK)。</p>
|
||||
<ul>
|
||||
<li>この関数内で解決する - 推奨</li>
|
||||
<li><tt>f_read()</tt>において、セクタ全体を含む転送を避ける - 直接転送が発生しない</li>
|
||||
<li><tt>f_read(fp, buff, btr, &br)</tt>において、<tt>(((UINT)buff & 3) == (f_tell(fp) & 3))</tt>を満足させる - <tt class="arg">buff</tt>のワード・アライメントが保証される</li>
|
||||
</ul>
|
||||
<p>一般的に、複数セクタの転送要求は、ストレージ・デバイスに対して可能な限りマルチ・セクタ転送しなければなりません。複数のシングル・セクタ読み出しに分解された場合、スループットが低下することがあります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
48
3rdparty/fatfs-0.10b/doc/ja/dstat.html
vendored
48
3rdparty/fatfs-0.10b/doc/ja/dstat.html
vendored
|
|
@ -1,48 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/dstat.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_status</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_status</h2>
|
||||
<p>ストレージ・デバイスの状態を取得します。</p>
|
||||
<pre>
|
||||
DSTATUS disk_status (
|
||||
BYTE <span class="arg">pdrv</span> <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>対象のデバイスを示す物理ドライブ番号(0-9)が指定されます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>ストレージ・デバイスの状態を次のフラグの組み合わせ値で返します。</p>
|
||||
<dl class="ret">
|
||||
<dt>STA_NOINIT</dt>
|
||||
<dd>デバイスが初期化されていないことを示すフラグ。システム・リセットやメディアの取り外し等でセットされ、<tt>disk_initialize()</tt>の正常終了でクリア、失敗でセットされます。メディア交換は非同期に発生するイベントなので、過去にメディア交換があった場合もこのフラグに反映させる必要があります。FatFsモジュールは、このフラグを参照して自動マウント動作を行うかどうかを判断します。</dd>
|
||||
<dt>STA_NODISK</dt>
|
||||
<dd>メディアが存在しないことを示すフラグ。メディアが取り外されている間はセットされ、セットされている間はクリアされます。固定ディスクでは常にクリアします。なお、このフラグはFatFsモジュールでは参照されません。</dd>
|
||||
<dt>STA_PROTECT</dt>
|
||||
<dd>メディアがライト・プロテクトされていることを示すフラグ。ライト・プロテクト機能をサポートしないときは、常にクリアします。リード・オンリ構成では参照されません。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
76
3rdparty/fatfs-0.10b/doc/ja/dwrite.html
vendored
76
3rdparty/fatfs-0.10b/doc/ja/dwrite.html
vendored
|
|
@ -1,76 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/dwrite.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_write</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_write</h2>
|
||||
<p>ストレージ・デバイスにデータを書き込みます。</p>
|
||||
<pre>
|
||||
DRESULT disk_write (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
const BYTE* <span class="arg">buff</span>, <span class="c">/* [IN] 書き込むデータへのポインタ */</span>
|
||||
DWORD <span class="arg">sector</span>, <span class="c">/* [IN] 書き込み開始セクタ番号 */</span>
|
||||
UINT <span class="arg">count</span> <span class="c">/* [IN] 書き込むセクタ数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>対象のデバイスを示す物理ドライブ番号(0-9)が指定されます。</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>ストレージ・デバイスに書き込むセクタ・データが格納された<em>バイト配列</em>が指定されます。バイト数は、セクタ・サイズ*<tt class="arg">count</tt>となります。</dd>
|
||||
<dt>sector</dt>
|
||||
<dd>書き込みを開始するセクタ番号。LBAで指定されます。</dd>
|
||||
<dt>count</dt>
|
||||
<dd>書き込むセクタ数。FatFsからの呼び出しでは1～128の範囲に限られます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<dl class="ret">
|
||||
<dt>RES_OK (0)</dt>
|
||||
<dd>正常終了。</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>書き込み中にエラーが発生し、その回復にも失敗した。</dd>
|
||||
<dt>RES_WRPRT</dt>
|
||||
<dd>メディアが書き込み禁止状態。</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
<dd>パラメータが不正。</dd>
|
||||
<dt>RES_NOTRDY</dt>
|
||||
<dd>デバイスが動作可能状態ではない（初期化されていない）。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p><tt class="arg">buff</tt>に指定されるアドレスは<em>常にワード・アライメントされているとは限りません</em>。詳細は、<a href="dread.html"><tt>disk_read()</tt></a>の解説を参照してください。</p>
|
||||
<p>一般的に、複数セクタの転送要求は、デバイスに対して可能な限りマルチ・セクタ転送しなければなりません。複数のシングル・セクタ書き込みに分解された場合、スループットが著しく低下することがあります。</p>
|
||||
<p>FatFsはディスク関数が遅延書き込み機能を持つことも想定しています。この関数から戻るとき、デバイスが書き込み中とかキャッシュに書き込まれただけなど、必ずしもデータの書き込みが完了している必要はありません。ただし、<tt class="arg">buff</tt>のデータは、この関数から戻ると無効となります。書き込み完了の要求は、<tt><a href="dioctl.html">disk_ioctl()</a></tt>の<tt>CTRL_SYNC</tt>コマンドによって行われます。このような遅延書き込み機能が実装された場合、スループットをさらに向上させることができます。</p>
|
||||
<p><em>アプリケーションからはこの関数を呼び出してはなりません。さもないと、FATボリュームが破壊される可能性があります。</em></p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>リード・オンリー構成(<tt>_FS_READONLY == 1</tt>)ではこの関数は必要とされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/eof.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/eof.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/eof.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_eof</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_eof</h2>
|
||||
<p>リード/ライト・ポインタがファイル終端に達しているかどうか調べます。.</p>
|
||||
<pre>
|
||||
int f_eof (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>リード/ライト・ポインタがファイル終端にあり読み出すデータがない場合は、0以外の値を返します。それ以外の時は0を返します。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>f_eof関数は、現リビジョンではマクロとして実装されています。</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_eof(fp) (((fp)->fptr) == ((fp)->fsize) ? 1 : 0)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>常に使用可能。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/error.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/error.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/error.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_error</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_error</h2>
|
||||
<p>エラー発生の有無を調べます。</p>
|
||||
<pre>
|
||||
int f_error (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>ファイルが操作中のエラーによって処理が中断されている場合は、0以外の値を返します。それ以外の時は0を返します。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>f_error関数は、現リビジョンではマクロとして実装されています。</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>常に使用可能。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
57
3rdparty/fatfs-0.10b/doc/ja/fattime.html
vendored
57
3rdparty/fatfs-0.10b/doc/ja/fattime.html
vendored
|
|
@ -1,57 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/fattime.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - get_fattime</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>get_fattime</h2>
|
||||
<p>現在時刻を取得します。</p>
|
||||
<pre>
|
||||
DWORD get_fattime (void);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>現在のローカル・タイムを<tt>DWORD</tt>値にパックして返します。ビット・フィールドは次に示すようになります。</p>
|
||||
<dl>
|
||||
<dt>bit31:25</dt>
|
||||
<dd>1980年を起点とした年を 0..127 でセット。</dd>
|
||||
<dt>bit24:21</dt>
|
||||
<dd>月を 1..12 の値でセット。</dd>
|
||||
<dt>bit20:16</dt>
|
||||
<dd>日を 1..31 の値でセット。</dd>
|
||||
<dt>bit15:11</dt>
|
||||
<dd>時を 0..23 の値でセット。</dd>
|
||||
<dt>bit10:5</dt>
|
||||
<dd>分を 0..59 の値でセット。</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>秒/2を 0..29 の値でセット</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>RTCをサポートしないシステムでも、ダミーとして何らかの日付として有効な値を返すべきです。0などを返した場合、そのファイルのタイムスタンプは無効になります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>リード・オンリー構成(<tt>_FS_READONLY == 1</tt>)ではこの関数は必要とされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
97
3rdparty/fatfs-0.10b/doc/ja/fdisk.html
vendored
97
3rdparty/fatfs-0.10b/doc/ja/fdisk.html
vendored
|
|
@ -1,97 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/fdisk.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_fdisk</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_fdisk</h2>
|
||||
<p>物理ドライブを分割します。</p>
|
||||
<pre>
|
||||
FRESULT f_fdisk (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] 物理ドライブ番号 */</span>
|
||||
const DWORD <span class="arg">part[]</span>, <span class="c">/* [IN] 区画マップ・テーブル */</span>
|
||||
void* <span class="arg">work</span> <span class="c">/* [-] ワークエリア */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>分割する<em>物理ドライブ</em>のドライブ番号を指定します。</dd>
|
||||
<dt>part[]</dt>
|
||||
<dd>区画マップ・テーブルへのポインタを指定します。</dd>
|
||||
<dt>work</dt>
|
||||
<dd>ワークエリアへのポインタを指定します。サイズは<tt>_MAX_SS</tt>バイト必要です。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#ip">FR_INVALID_PARAMETER</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>説明</h4>
|
||||
<p>この関数は、指定された物理ドライブのMBRに区画テーブルを作成します。区画分けは一般的なFDISK形式で行うため、最大4つの基本区画を作成することができます。拡張区画には対応していません。区画マップテーブル<tt class="arg">part[]</tt>にはドライブをどのように分割するか指定して渡します。この配列は4つの項目から成り、先頭の項目が1番目の、最後の項目が4番目の区画のサイズを示します。値が100以下の場合、ドライブの総容量に対する割合をパーセント単位で指定します。100を超える値の場合はセクタ数の直接指定になります。</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READOLNY == 0</tt> で <tt>_USE_MKFS == 1</tt> で <tt>_MULTI_PARTITION == 1</tt> のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* ユーザ定義のボリューム管理テーブル (_MULTI_PARTITION == 1 のとき必要) */</span>
|
||||
|
||||
PARTITION VolToPart[] = {
|
||||
{0, 1}, <span class="c">/* 論理ドライブ 0 ==> 物理ドライブ 0, 第1区画 */</span>
|
||||
{0, 2}, <span class="c">/* 論理ドライブ 1 ==> 物理ドライブ 0, 第2区画 */</span>
|
||||
{1, 0} <span class="c">/* 論理ドライブ 2 ==> 物理ドライブ 1, 自動検出 */</span>
|
||||
};
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* 新しい物理ドライブ(0)の初期化 */</span>
|
||||
|
||||
FATFS fs;
|
||||
DWORD plist[] = {50, 50, 0, 0}; <span class="c">/* 2分割 */</span>
|
||||
BYTE work[_MAX_SS];
|
||||
|
||||
f_fdisk(0, plist, work); <span class="c">/* 物理ドライブ 0 の分割 */</span>
|
||||
|
||||
f_mount(&fs "0:", 0);
|
||||
f_mkfs("0:", 0, 0); <span class="c">/* 論理ドライブ 0 のフォーマット. 第二引数は無視される. */</span>
|
||||
f_mount(0, "0:", 0);
|
||||
|
||||
f_mount(&fs, "1:", 0);
|
||||
f_mkfs("1:", 0, 0); <span class="c">/* 論理ドライブ 0 のフォーマット. 第二引数は無視される. */</span>
|
||||
f_mount(0, "1:", 0);
|
||||
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="filename.html#vol">Volume management</a>, <a href="mkfs.html">f_mkfs</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
76
3rdparty/fatfs-0.10b/doc/ja/filename.html
vendored
76
3rdparty/fatfs-0.10b/doc/ja/filename.html
vendored
|
|
@ -1,76 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/filename.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - パス名のフォーマット</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>パス名のフォーマット</h1>
|
||||
<div class="para" id="nam">
|
||||
<h3>ファイル・ディレクトリ名</h3>
|
||||
<p>FatFsモジュールでのファイル、ディレクトリ、ドライブの指定方法はDOS/Windows APIとほぼ同じです。パス名のフォーマットは次の通りです。</p>
|
||||
<pre>"[論理ドライブ番号:][/]ディレクトリ名/ファイル名"</pre>
|
||||
<p>FatFsモジュールは長いファイル名(LFN)および8.3形式ファイル名(SFN)に対応しています。LFNは、(<tt>_USE_LFN > 0</tt>)のとき使用可能になります。ディレクトリ・セパレータにはDOS/Windows APIと同じく<tt>'/'</tt>と<tt>'\'</tt>を使用します。連続したセパレータは無視され1個として扱われます。唯一の違いは、論理ドライブの指定だけです。論理ドライブ番号は、<tt>'0'</tt>～<tt>'9'</tt>の一文字の数字とコロンで指定し、省略した場合は<em>デフォルト・ドライブ</em>(0またはカレント・ドライブ)が選択されます。</p>
|
||||
<p>ヌル文字や制御文字(<tt>'\0'</tt>～<tt>'\x1F'</tt>)は、パス名の終端として認識されます。パス名に先行あるいは中に含まれるスペースは、LFN構成では名前の一部として有効ですが、非LFN構成ではスペースはパス名の終端として認識されます。</p>
|
||||
<p>標準構成(<tt>_FS_RPATH == 0</tt>)のときは、全てのオブジェクトがルート・ディレクトリから辿る絶対パスで指定されます。OS指向なカレント・ディレクトリという概念は無く、またドット・ディレクトリ("."や"..")は使用できません。パス名先頭のセパレータは無視されます。デフォルト・ドライブ番号は常に0になります。</p>
|
||||
<p>相対パスを有効(<tt>_FS_RPATH == 1</tt>)にしたときは、先行するセパレータの有無によって検索開始ディレクトリが変わり、セパレータがある場合はルート・ディレクトリから、無い場合は<a href="chdir.html"><tt>f_chdir()</tt></a>で設定されるカレント・ディレクトリからになります。またパス名にドット・ディレクトリが使用できます。デフォルト・ドライブ番号は<a href="chdrive.html"><tt>f_chdrive()</tt></a>で設定された値となります。</p>
|
||||
<table class="lst2">
|
||||
<tr><td>パス名の例</td><td>_FS_RPATH == 0</td><td>_FS_RPATH == 1</td></tr>
|
||||
<tr class="lst3"><td>file.txt</td><td>ドライブ0のルート・ディレクトリ下のファイル</td><td>カレント・ドライブのカレント・ディレクトリ下のファイル</td></tr>
|
||||
<tr><td>/file.txt</td><td>ドライブ0のルート・ディレクトリ下のファイル</td><td>カレント・ドライブのルート・ディレクトリ下のファイル</td></tr>
|
||||
<tr><td></td><td>ドライブ0のルート・ディレクトリ</td><td>カレント・ドライブのカレント・ディレクトリ</td></tr>
|
||||
<tr><td>2:</td><td>ドライブ2のルート・ディレクトリ</td><td>ドライブ2のカレント・ディレクトリ</td></tr>
|
||||
<tr><td>2:file1.txt</td><td>ドライブ2のルート・ディレクトリ下のファイル</td><td>ドライブ2のカレント・ディレクトリ下のファイル</td></tr>
|
||||
<tr><td>2:/</td><td>ドライブ2のルート・ディレクトリ</td><td>ドライブ2のルート・ディレクトリ</td></tr>
|
||||
<tr><td>../file.txt</td><td>無効</td><td>親ディレクトリ下のファイル</td></tr>
|
||||
<tr><td>.</td><td>無効</td><td>このディレクトリ</td></tr>
|
||||
<tr><td>..</td><td>無効</td><td>カレント・ディレクトリの親ディレクトリ</td></tr>
|
||||
<tr><td>dir1/..</td><td>無効</td><td>カレント・ディレクトリ</td></tr>
|
||||
<tr><td>/..</td><td>無効</td><td>ルート・ディレクトリ(その上は辿れない)</td></tr>
|
||||
</table>
|
||||
<p>また、<tt>_STR_VOLUME_ID</tt>オプションを有効にすることでドライブ番号の識別には数字のほか、任意の文字列を使用することも可能になります。</p>
|
||||
</div>
|
||||
|
||||
<p><br></p>
|
||||
<div class="para" id="uni">
|
||||
<h3>Unicode API</h3>
|
||||
<p>ファイル関数の入出力のうちファイル名やパス名を指定する引数の型は、<tt>TCHAR</tt>で定義されていますが、これは通常は<tt>char</tt>のエリアスになっています。そして、<tt>_CODE_PAGE</tt>で指定されるANSI/OEMコード(SBCSまたはDBCS)の文字列として扱われます。ファイル名入出力をUnicodeとする構成(<tt>_LFN_UNICODE == 1</tt>)にしたときは、<tt>TCHAR</tt>はワイド文字(<tt>WCHAR, unsigned short</tt>)に切り替わり、パス名の入出力にUnicodeを使用するようになります。これによりLFN規格に完全対応となり、ANSI/OEMコードにない文字(たとえば ✝☪✡☸☭など)も使用できます。この設定は文字列入出力関数のデータ型とファイル上のエンコーディングにも影響を与えます。リテラル文字列を定義するとき、次に示すように<tt>_T(s)</tt>および<tt>_TEXT(s)</tt>マクロを使ってANSI/OEMとUnicodeを自動切り替えすることができます。</p>
|
||||
<pre>
|
||||
f_open(fp, "filename.txt", FA_READ); <span class="c">/* ANSI/OEM専用コード */</span>
|
||||
f_open(fp, L"filename.txt", FA_READ); <span class="c">/* Unicode専用コード */</span>
|
||||
f_open(fp, _T("filename.txt"), FA_READ); <span class="c">/* 両用コード(自動切り替え) */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p><br></p>
|
||||
<div class="para" id="vol">
|
||||
<h3>ボリューム管理</h3>
|
||||
<p>デフォルトの構成では、それぞれの論理ドライブは同じ番号の物理ドライブに1:1で結びつけられていて、自動検出機能によりその物理ドライブ上の一つのFATボリュームがマウントされます。FATボリュームの検出は、セクタ0、第一区画～第四区画の順に行われます。</p>
|
||||
<p><tt>_MULTI_PARTITION</tt>に1を指定すると、それぞれの論理ドライブに対して個別に物理ドライブ番号と区画を指定できるようになります。この構成では、論理ドライブと区画の対応を解決するためのテーブルを次に示すように定義する必要があります。</p>
|
||||
<pre>
|
||||
例:論理ドライブ0～2を物理ドライブ0(非リムーバブル)の3つの基本区画に割り当て、
|
||||
論理ドライブ3を物理ドライブ1(リムーバブル)に割り当てる場合。
|
||||
|
||||
PARTITION VolToPart[] = {
|
||||
{0, 1}, <span class="c">/* 論理ドライブ 0 ==> 物理ドライブ 0, 第1区画 */</span>
|
||||
{0, 2}, <span class="c">/* 論理ドライブ 1 ==> 物理ドライブ 0, 第2区画 */</span>
|
||||
{0, 3}, <span class="c">/* 論理ドライブ 2 ==> 物理ドライブ 0, 第3区画 */</span>
|
||||
{1, 0} <span class="c">/* 論理ドライブ 3 ==> 物理ドライブ 1, 自動検出 */</span>
|
||||
};
|
||||
|
||||
<img src="../img/f7.png" width="828" height="288" alt="論理ドライブと物理ドライブの関係">
|
||||
</pre>
|
||||
<p>複数区画指定を使用する場合、次の点に注意しなければなりません。
|
||||
<ul>
|
||||
<li>マウント可能な区画は基本区画のみで、拡張区画内には対応しない。</li>
|
||||
<li>複数のマウントされた区画を持つ物理ドライブは、非リムーバブルでなければならず、システム動作中のメディア交換は禁止。</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
140
3rdparty/fatfs-0.10b/doc/ja/forward.html
vendored
140
3rdparty/fatfs-0.10b/doc/ja/forward.html
vendored
|
|
@ -1,140 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/forward.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_forward</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_forward</h2>
|
||||
<p>ファイルからデータを読み出し、送信ストリームに直接転送します。</p>
|
||||
<pre>
|
||||
FRESULT f_forward (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] ファイル・オブジェクト構造体 */</span>
|
||||
UINT (*<span class="arg">func</span>)(const BYTE*,UINT), <span class="c">/* [IN] データ転送関数 */</span>
|
||||
UINT <span class="arg">btf</span>, <span class="c">/* [IN] 転送するバイト数 */</span>
|
||||
UINT* <span class="arg">bf</span> <span class="c">/* [OUT] 転送されたバイト数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>func</dt>
|
||||
<dd>データを渡すユーザ定義関数へのポインタを指定します。この関数の仕様はサンプルを参照してください。</dd>
|
||||
<dt>btf</dt>
|
||||
<dd>転送するバイト数(0～UINTの最大値)を指定します。</dd>
|
||||
<dt>bf</dt>
|
||||
<dd>実際に転送されたバイト数を格納する変数を指すポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ファイルのデータをバッファに読み出さずに送信ストリームに直接転送します。アプリケーション側でデータ・バッファを必要としないので、メモリの限られた環境で有効です。リード/ライト・ポインタは転送されたバイト数だけ進みます。指定されたバイト数の転送中にファイルの終端に達した場合や送信ストリームがビジーになった場合、<tt class="arg">*bf</tt>は<tt class="arg">btf</tt>よりも小さくなります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_USE_FORWARD == 1</tt>で、且つ<tt>_FS_TINY == 1</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例（オーディオ再生）</h4>
|
||||
<pre>
|
||||
<span class="c">/*-----------------------------------------------------------------------*/</span>
|
||||
<span class="c">/* f_forward関数から呼ばれるデータ送信関数の例 */</span>
|
||||
<span class="c">/*-----------------------------------------------------------------------*/</span>
|
||||
|
||||
UINT out_stream ( <span class="c">/* 戻り値: 転送されたバイト数またはストリームの状態 */</span>
|
||||
const BYTE *p, <span class="c">/* 転送するデータを指すポインタ */</span>
|
||||
UINT btf <span class="c">/* >0: 転送を行う(バイト数). 0: ストリームの状態を調べる */</span>
|
||||
)
|
||||
{
|
||||
UINT cnt = 0;
|
||||
|
||||
|
||||
if (btf == 0) { <span class="c">/* センス要求 */</span>
|
||||
<span class="c">/* ストリームの状態を返す (0: ビジー, 1: レディ) */</span>
|
||||
<span class="c">/* 一旦、レディを返したら、続く転送要求で少なくとも1バイトは */</span>
|
||||
<span class="c">/* 転送されないと f_forward関数は FR_INT_ERR となる。 */</span>
|
||||
if (FIFO_READY) cnt = 1;
|
||||
}
|
||||
else { <span class="c">/* 転送要求 */</span>
|
||||
do { <span class="c">/* 全てのバイトを転送するか、ストリームがビジーになるまで繰り返す */</span>
|
||||
FIFO_PORT = *p++;
|
||||
cnt++;
|
||||
} while (cnt < btf && FIFO_READY);
|
||||
}
|
||||
|
||||
return cnt;
|
||||
}
|
||||
|
||||
|
||||
<span class="c">/*-----------------------------------------------------------------------*/</span>
|
||||
<span class="c">/* f_forward関数の使用例 */</span>
|
||||
<span class="c">/*-----------------------------------------------------------------------*/</span>
|
||||
|
||||
FRESULT play_file (
|
||||
char *fn <span class="c">/* 再生するオーディオ・ファイル名を指すポインタ */</span>
|
||||
)
|
||||
{
|
||||
FRESULT rc;
|
||||
FIL fil;
|
||||
UINT dmy;
|
||||
|
||||
<span class="c">/* ファイルを読み出しモードで開く */</span>
|
||||
rc = f_open(&fil, fn, FA_READ);
|
||||
if (rc) return rc;
|
||||
|
||||
<span class="c">/* 全てのデータが転送されるかエラーが発生するまで続ける */</span>
|
||||
while (rc == FR_OK && fil.fptr < fil.fsize) {
|
||||
|
||||
<span class="c">/* ほかの処理... */</span>
|
||||
|
||||
<span class="c">/* 定期的または要求に応じてデータをストリームに送出する */</span>
|
||||
rc = f_forward(&fil, out_stream, 1000, &dmy);
|
||||
}
|
||||
|
||||
<span class="c">/* ファイルを閉じて戻る */</span>
|
||||
f_close(&fil);
|
||||
return rc;
|
||||
}
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="gets.html">fgets</a>, <a href="write.html">f_write</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
70
3rdparty/fatfs-0.10b/doc/ja/getcwd.html
vendored
70
3rdparty/fatfs-0.10b/doc/ja/getcwd.html
vendored
|
|
@ -1,70 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/getcwd.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_getcwd</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_getcwd</h2>
|
||||
<p>カレント・ディレクトリを得ます。</p>
|
||||
<pre>
|
||||
FRESULT f_getcwd (
|
||||
TCHAR* <span class="arg">buff</span>, <span class="c">/* [OUT] バッファ */</span>
|
||||
UINT <span class="arg">len</span> <span class="c">/* [IN] バッファ・サイズ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>buff</dt>
|
||||
<dd>カレント・ディレクトリのパス名文字列を格納するバッファ</dd>
|
||||
<dt>len</dt>
|
||||
<dd><tt>TCHAR</tt>単位のバッファ・サイズ</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>カレント・ドライブのカレント・ディレクトリのフル・パス文字列を取得します。<tt>_VOLUMES</tt>が2以上のときは、論理ドライブ番号の付加されたパス名となります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_RPATH == 2</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="chdrive.html">f_chdrive</a>, <a href="chdir.html">f_chdir</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
95
3rdparty/fatfs-0.10b/doc/ja/getfree.html
vendored
95
3rdparty/fatfs-0.10b/doc/ja/getfree.html
vendored
|
|
@ -1,95 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/getfree.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_getfree</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_getfree</h2>
|
||||
<p>ボリューム上の空き領域のサイズを取得します。</p>
|
||||
<pre>
|
||||
FRESULT f_getfree (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] 対象ドライブを指定します */</span>
|
||||
DWORD* <span class="arg">nclst</span>, <span class="c">/* [OUT] 空きクラスタ数を格納する変数へのポインタ */</span>
|
||||
FATFS** <span class="arg">fatfs</span> <span class="c">/* [OUT] ファイル・システム・オブジェクトを指すポインタへのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>調べる対象の論理ドライブを示す<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。ヌル文字列はカレント・ドライブを意味します。</dd>
|
||||
<dt>nclst</dt>
|
||||
<dd>空きクラスタ数を格納する<tt>DWORD</tt>型変数へのポインタを指定します。</dd>
|
||||
<dt>fatfs</dt>
|
||||
<dd>対象ドライブのファイル・システム・オブジェクトを指すポインタが返されます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>論理ドライブ上の空き領域のサイズをクラスタ単位で取得します。返されたファイル・システム・オブジェクトの<tt>csize</tt>メンバがクラスタあたりのセクタ数を示しているので、これを元にセクタ単位の空きサイズが計算できます。FAT32ボリュームにおいては、FSINFOの情報が実際の空きクラスタ数と同期していない場合、不正確な値を返す可能性があります。この問題を避けるため、<tt>_FS_NOFSINFO</tt>オプションでマウント後の初回は必ずフルFATスキャンをするように構成することもできます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
FATFS *fs;
|
||||
DWORD fre_clust, fre_sect, tot_sect;
|
||||
|
||||
|
||||
<span class="c">/* ドライブ1のボリューム情報と空きクラスタ数を得る */</span>
|
||||
res = f_getfree("1:", &fre_clust, &fs);
|
||||
if (res) die(res);
|
||||
|
||||
<span class="c">/* 全セクタ数と空きセクタ数を計算 */</span>
|
||||
tot_sect = (fs->n_fatent - 2) * fs->csize;
|
||||
fre_sect = fre_clust * fs->csize;
|
||||
|
||||
<span class="c">/* ボリューム全体のサイズと空きのサイズを表示 (512バイト/セクタと仮定) */</span>
|
||||
printf("%10lu KiB total drive space.\n%10lu KiB available.\n",
|
||||
tot_sect / 2, fre_sect / 2);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<tt><a href="sfatfs.html">FATFS</a></tt>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
82
3rdparty/fatfs-0.10b/doc/ja/getlabel.html
vendored
82
3rdparty/fatfs-0.10b/doc/ja/getlabel.html
vendored
|
|
@ -1,82 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/getlabel.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_getlabel</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_getlabel</h2>
|
||||
<p>ボリューム・ラベルを取得します。</p>
|
||||
<pre>
|
||||
FRESULT f_getlabel (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] 対象ドライブ */</span>
|
||||
TCHAR* <span class="arg">label</span>, <span class="c">/* [OUT] ボリューム名を格納するバッファ */</span>
|
||||
DWORD* <span class="arg">vsn</span> <span class="c">/* [OUT] ボリューム・シリアル番号を格納する変数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>対象となる論理ドライブの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。ヌル文字列の場合は、デフォルト・ドライブを指定したことになります。</dd>
|
||||
<dt>label</dt>
|
||||
<dd>ボリューム名を格納する配列へのポインタを指定します。少なくとも12要素のサイズが必要です。ボリューム名がない場合はヌル文字列が返されます。この情報が不要なときはヌル・ポインタを指定してください。</dd>
|
||||
<dt>vsn</dt>
|
||||
<dd>ボリューム・シリアル番号を格納する<tt>DWORD</tt>型変数へのポインタを指定します。この情報が不要なときはヌル・ポインタを指定してください。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_USE_LABEL == 1</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
char str[12];
|
||||
|
||||
<span class="c">/* デフォルト・ドライブのボリューム名を得る */</span>
|
||||
f_getlabel("", str, 0);
|
||||
|
||||
<span class="c">/* ドライブ2のボリューム名を得る */</span>
|
||||
f_getlabel("2:", str, 0);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<tt><a href="setlabel.html">f_setlabel</a></tt>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
65
3rdparty/fatfs-0.10b/doc/ja/gets.html
vendored
65
3rdparty/fatfs-0.10b/doc/ja/gets.html
vendored
|
|
@ -1,65 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/gets.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_gets</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_gets</h2>
|
||||
<p>ファイルから文字列を読み出します。</p>
|
||||
<pre>
|
||||
TCHAR* f_gets (
|
||||
TCHAR* <span class="arg">buff</span>, <span class="c">/* [OUT] バッファ */</span>
|
||||
int <span class="arg">len</span>, <span class="c">/* [IN] バッファのサイズ */</span>
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>buff</dt>
|
||||
<dd>文字列を読み出すバッファを指すポインタを指定します。</dd>
|
||||
<dt>len</dt>
|
||||
<dd>バッファのサイズを要素数で指定します。</dd>
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>関数が成功すると<tt class="arg">buff</tt>が返されます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>この関数は<a href="read.html"><tt>f_read()</tt></a>のラッパー関数です。読み出し動作は、最初の<tt>'\n'</tt>を読み込むか、ファイル終端に達するか、<tt class="arg">len</tt> - 1文字を読み出すまで続きます。読み込まれた文字列の終端には<tt>'\0'</tt>が付加されます。既にファイル終端で1文字も読み込まれなかったとき、または何らかのエラーが発生したときは関数は失敗しヌル・ポインタを返します。ファイル終端かエラーかは<tt>f_eof()</tt>,<tt>f_error()</tt>マクロで調べられます。</p>
|
||||
<p>Unicode API構成(<tt>_LFN_UNICODE == 1</tt>)が選択されているときは、<tt class="arg">buff</tt>はUTF-16文字列になりますが、ファイル上のエンコードは、<tt>_STRF_ENCODE</tt>オプションで選択できます。それ以外の時は無変換(1バイト/1文字)で読み出します。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_USE_STRFUNC</tt>が1または2のとき使用可能です。2のときは、ファイルに含まれる<tt>'\r'</tt>が取り除かれてバッファに読み込まれます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="read.html">f_read</a>, <a href="putc.html">f_putc</a>, <a href="puts.html">f_puts</a>, <a href="printf.html">f_printf</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
129
3rdparty/fatfs-0.10b/doc/ja/lseek.html
vendored
129
3rdparty/fatfs-0.10b/doc/ja/lseek.html
vendored
|
|
@ -1,129 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/lseek.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_lseek</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_lseek</h2>
|
||||
<p>ファイルのリード/ライト・ポインタを移動します。また、高速シーク機能使用時にはCLMT(後述)の作成にも使用します。</p>
|
||||
<pre>
|
||||
FRESULT f_lseek (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] ファイル・オブジェクト構造体へのポインタ */</span>
|
||||
DWORD <span class="arg">ofs</span> <span class="c">/* [IN] 移動先オフセット */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>対象となるファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>ofs</dt>
|
||||
<dd>移動先のオフセット(リード/ライト・ポインタ)値。ファイル先頭からのオフセットをバイト単位で指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ファイルのリード/ライト・ポインタ(次に読み出し・書き込みされるバイトのオフセット)を移動します。オフセットの原点はファイル先頭です。書き込みモードでファイル・サイズより大きな値を指定すると、そこまでファイル・サイズが拡張され、拡張された部分のデータは未定義となります。データを遅延無く高速に書き込みたいときは、予めこの関数で必要なサイズまでファイル・サイズを拡張しておくと良いでしょう。<tt>f_lseek()</tt>が正常終了したあとは、リード/ライト・ポインタが正しく移動したかチェックするべきです。リード/ライト・ポインタが指定より小さいときは、次の原因が考えられます。</p>
|
||||
<ul>
|
||||
<li>非書き込みモードまたは高速シーク・モードのため、ファイル・サイズでクリップされた。</li>
|
||||
<li>ファイル拡張中にディスクが満杯になった。</li>
|
||||
</ul>
|
||||
<p><tt>_USE_FASTSEEK</tt>が1で、且つファイル・オブジェクトの<tt>cltbl</tt>メンバがNULL以外(<tt>f_open()</tt>でNULLに設定される)のとき、高速シーク・モードになります。これはファイルのクラスタ配置情報(CLMT)をメモリ上に保持しておくことにより、FATにアクセスすることなく後方シークやロング・シークを高速に行う機能です。高速シーク・モードは、<tt>f_read()/f_wtite()</tt>の動作にも適用されます。高速シーク・モードでは<tt>f_wtite()/f_lseek()</tt>によるファイル・サイズの拡張はできません。</p>
|
||||
<p>高速シーク動作を行う前に、CLMTを作成しておく必要があります。これを作成するには、まずCLMT格納バッファ(<tt>DWORD</tt>型配列)を準備し、<tt>cltbl</tt>メンバにそのポインタをセットします。そして、配列の先頭要素にその配列のサイズ(要素数)を入れ、<tt>f_lseek()</tt>を<tt class="arg">ofs</tt>に<tt>CREATE_LINKMAP</tt>を指定して呼び出します。関数が成功するとCLMTが作成され、以降の<tt>f_read()/f_write()/f_lseek()</tt>ではFATへのアクセスは発生しません。<tt>FR_NOT_ENOUGH_CORE</tt>で失敗したときは配列サイズが不足で、先頭要素には実際に必要となる要素数が返されます。必要な要素数は、(ファイルの分割数 + 1) * 2 です。たとえば、ファイルが5つのフラグメントに分断されているときに必要な要素数は、12となります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_MINIMIZE < 3</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* ファイルを開く */</span>
|
||||
fp = malloc(sizeof (FIL));
|
||||
res = f_open(fp, "file.dat", FA_READ|FA_WRITE);
|
||||
if (res) ...
|
||||
|
||||
<span class="c">/* ファイル・オフセット5000へ移動 */</span>
|
||||
res = f_lseek(fp, 5000);
|
||||
|
||||
<span class="c">/* ファイル終端へ移動(ファイル追記の準備) */</span>
|
||||
res = f_lseek(fp, f_size(fp));
|
||||
|
||||
<span class="c">/* 3000バイト進める */</span>
|
||||
res = f_lseek(fp, f_tell(fp) + 3000);
|
||||
|
||||
<span class="c">/* 2000バイト戻す (ラップアラウンドに注意) */</span>
|
||||
res = f_lseek(fp, f_tell(fp) - 2000);
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* クラスタ先行割り当て (ストリーミング・ライト時のバッファ・オーバーラン防止) */</span>
|
||||
|
||||
res = f_open(fp, "record.wav", FA_CREATE_NEW | FA_WRITE); <span class="c">/* ファイル作成 */</span>
|
||||
|
||||
res = f_lseek(fp, MAX_SIZE); <span class="c">/* 十分なクラスタの先行割り当て */</span>
|
||||
if (res || f_tell(fp) != PRE_SIZE) ... <span class="c">/* 正しくファイルが拡張されたかチェック */</span>
|
||||
|
||||
res = f_lseek(fp, DATA_START); <span class="c">/* データ・ストリームの記録(アロケーションディレイ無し) */</span>
|
||||
...
|
||||
|
||||
res = f_truncate(fp); <span class="c">/* 不要領域の切り捨て */</span>
|
||||
res = f_lseek(fp, 0); <span class="c">/* ヘッダの記録 */</span>
|
||||
...
|
||||
|
||||
res = f_close(fp);
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* 高速シーク機能を使う */</span>
|
||||
|
||||
DWORD clmt[SZ_TBL]; <span class="c">/* リンク・マップ・テーブル格納バッファ */</span>
|
||||
|
||||
res = f_lseek(fp, ofs1); <span class="c">/* 通常シーク (オープン時、cltblはNULLに初期化される) */</span>
|
||||
|
||||
fp->cltbl = clmt; <span class="c">/* 高速シーク機能の有効化 */</span>
|
||||
clmt[0] = SZ_TBL; <span class="c">/* 先頭要素に配列要素数をセット */</span>
|
||||
res = f_lseek(fp, CREATE_LINKMAP); <span class="c">/* CLMTの作成 */</span>
|
||||
...
|
||||
|
||||
res = f_lseek(fp, ofs2); <span class="c">/* 以降、f_read/f_write/f_lseekでFATアクセスは発生しない */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
80
3rdparty/fatfs-0.10b/doc/ja/mkdir.html
vendored
80
3rdparty/fatfs-0.10b/doc/ja/mkdir.html
vendored
|
|
@ -1,80 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/mkdir.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_mkdir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_mkdir</h2>
|
||||
<p>ディレクトリを作成します。</p>
|
||||
<pre>
|
||||
FRESULT f_mkdir (
|
||||
const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] 作成するディレクトリ名へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>作成するディレクトリの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#ex">FR_EXIST</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>空のディレクトリを作成します。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
res = f_mkdir("sub1");
|
||||
if (res) die(res);
|
||||
res = f_mkdir("sub1/sub2");
|
||||
if (res) die(res);
|
||||
res = f_mkdir("sub1/sub2/sub3");
|
||||
if (res) die(res);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
73
3rdparty/fatfs-0.10b/doc/ja/mkfs.html
vendored
73
3rdparty/fatfs-0.10b/doc/ja/mkfs.html
vendored
|
|
@ -1,73 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/mkfs.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_mkfs</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_mkfs</h2>
|
||||
<p>論理ドライブ上にFATボリュームを作成(フォーマット)します。</p>
|
||||
<pre>
|
||||
FRESULT f_mkfs (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] 論理ドライブ番号 */</span>
|
||||
BYTE <span class="arg">sfd</span>, <span class="c">/* [IN] 区画作成方法 */</span>
|
||||
UINT <span class="arg">au</span> <span class="c">/* [IN] クラス・タサイズ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>フォーマット対象の論理ドライブを示す<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。ドライブ番号を含まない場合は、カレント・ドライブを意味します。</dd>
|
||||
<dt>sfd</dt>
|
||||
<dd>パーテーション形式。(0(FDISK) または 1(SFD))</dd>
|
||||
<dt>au</dt>
|
||||
<dd>クラスタ・サイズをバイト単位で指定します。値は対象ドライブのセクタ・サイズのn倍(n = 1～128で、2の累乗)でなければなりません。0などの無効値を指定した場合、ボリュームのサイズに応じたデフォルトのクラスタ・サイズが選択されます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ma">FR_MKFS_ABORTED</a>,
|
||||
<a href="rc.html#ip">FR_INVALID_PARAMETER</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>説明</h4>
|
||||
<p>物理ドライブ上にFATボリュームを作成します。FDISK形式が指定された場合は、物理ドライブ全体を占める基本区画(パーテーション)が作成され、その中にFATボリュームが作成されます。SFD形式では、FATボリュームが物理ドライブの先頭セクタからベタで作成されます。</p>
|
||||
<p>フォーマットする論理ドライブがマルチ・パーテーション機能(<tt>_MULTI_PARTITION</tt>)によって特定の区画(1～4)に結び付けられている場合は、その区画の中にFATボリュームが作成されます。<tt class="arg">sfd</tt>は無視され、また対応する物理ドライブはこれに先立ち、<tt>f_fdisk()</tt>または他のツールで適切に区画設定されている必要があります。</p>
|
||||
<p>パーテーション形式には、FDISK形式とSFD形式の二通りあります。FDISK形式は、ハードディスク、MMC、SDC、CFC、U Diskなどで標準的に使用されます。FDISK形式では一台の物理ドライブ上に一つまたは複数の区画を作成することができます。区画管理情報はMBR(物理ドライブの先頭セクタ)に記録されます。SFD形式は単に何の分割も行わない形式で、ボリュームは物理ドライブの先頭セクタから開始します。SFD形式は、フロッピー・ディスク、マイクロドライブ、光学ディスク、およびその他スーパー・フロッピー・メディアで標準的に使用されています。</p>
|
||||
<p>FATタイプ(FAT12/FAT16/FAT32)は、そのボリューム上の<em>クラスタ数によってのみ決定</em>される決まり[FAT仕様書より]になっていて、それ以外の要因はありません。したがって、どのFATタイプになるかはボリューム・サイズとクラスタ・サイズに依存します。クラスタ・サイズは大きくするほど性能が上がります。</p>
|
||||
<p>クラスタ数がFATタイプの境界に近くなるときは、<tt>FR_MKFS_ABORTED</tt>で関数が失敗する可能性があります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_USE_MKFS == 1</tt>のとき使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="filename.html#vol">ボリューム管理</a>, <a href="fdisk.html">f_fdisk</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
82
3rdparty/fatfs-0.10b/doc/ja/mount.html
vendored
82
3rdparty/fatfs-0.10b/doc/ja/mount.html
vendored
|
|
@ -1,82 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/mount.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_mount</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_mount</h2>
|
||||
<p>論理ドライブにファイル・システム・オブジェクトを登録・抹消します。</p>
|
||||
<pre>
|
||||
FRESULT f_mount (
|
||||
FATFS* <span class="arg">fs</span>, <span class="c">/* [IN] ファイル・システム・オブジェクト */</span>
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] 論理ドライブ番号 */</span>
|
||||
BYTE <span class="arg">opt</span> <span class="c">/* [IN] オプション */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fs</dt>
|
||||
<dd>登録するファイル・システム・オブジェクトへのポインタ。</dd>
|
||||
<dt>path</dt>
|
||||
<dd>対象となる論理ドライブの<a href="filename.html">パス名</a>を示すヌル文字'\0'終端の文字列へのポインタを指定します。ドライブ番号を含まない場合は、デフォルト・ドライブを指定したことになります。</dd>
|
||||
<dt>opt</dt>
|
||||
<dd>ファイル・システム・オブジェクトの登録と同時にマウント動作を行うかどうかを指定するフラグ。登録抹消のときは意味を持ちません。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>FatFsモジュールでは、それぞれの論理ドライブに<em>ファイル・システム・オブジェクト</em>というワーク・エリアが必要です。この関数は論理ドライブにファイル・システム・オブジェクトを登録したり抹消したりします。何らかのファイル関数を使用する前に、この関数でその論理ドライブのファイル・システム・オブジェクトを与えておかなければなりません。<tt class="arg">fs</tt>にヌル・ポインタを指定すると、その論理ドライブのファイル・システム・オブジェクトの登録は抹消されるだけです。登録抹消されたファイル・システム・オブジェクトのメモリは解放できます。操作対象の論理ドライブ上に開かれているファイルやディレクトリがあった場合、それらは全て無効になります。この関数の内部処理は次のような順に行われます。</p>
|
||||
<ol>
|
||||
<li>対象の論理ドライブを<tt class="arg">path</tt>から得る。</li>
|
||||
<li>既に登録されているファイル・システム・オブジェクトはクリアし、登録を解除する。</li>
|
||||
<li><tt class="arg">fs</tt>が有効なポインタのときは、そのファイル・システム・オブジェクトをクリアし登録する。</li>
|
||||
<li>マウント動作が指定されているときは、それを実行する。</li>
|
||||
</ol>
|
||||
<p><tt class="arg">opt</tt>に0を指定すると、マウント動作(物理ドライブの初期化、FATボリュームの検索、BPBを解析しファイル・システム・オブジェクトを初期化)は行われず、関数は物理ドライブの状態に関わらず常に成功します。関数内では下位レイヤへのアクセスは発生せず、指定されたファイル・システム・オブジェクトをクリア(無効化)し、そのアドレスを内部配列に登録するだけです。単に登録済みのファイル・システム・オブジェクトをクリアする目的にも使えます。そして、続いてボリュームへのアクセスが行われたとき次のうちいずれかでも真の場合は、実際のマウント動作が行われます。</p>
|
||||
<ul>
|
||||
<li>ファイル・システム・オブジェクトがクリア(無効)状態(<tt>f_mount()</tt>の実行による)</li>
|
||||
<li>物理ドライブが未初期化状態(システム・リセットやメディアの交換による)</li>
|
||||
</ul>
|
||||
<p><tt class="arg">opt</tt>に1を指定すると、登録に続いてマウント動作が行われます。マウントに失敗すると対応するエラーを返しますが、登録は有効なので続くボリュームへのアクセスで再びマウント動作が実行されます。<p>
|
||||
<p>下位レイヤの実装上メディア交換の検出がサポートされない(<tt>disk_status()</tt>に反映されない)ときは、アプリケーションはメディア交換の後この関数でファイル・システム・オブジェクトを明示的にクリアして再マウントが正常に行えるようにする必要があります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>全ての構成で使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a></tt>, <tt><a href="sfatfs.html">FATFS</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
171
3rdparty/fatfs-0.10b/doc/ja/open.html
vendored
171
3rdparty/fatfs-0.10b/doc/ja/open.html
vendored
|
|
@ -1,171 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/open.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_open</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_open</h2>
|
||||
<p>ファイルをオープンまたは作成します。</p>
|
||||
<pre>
|
||||
FRESULT f_open (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [OUT] 空のファイル・オブジェクト構造体へのポインタ */</span>
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] ファイル名へのポインタ */</span>
|
||||
BYTE <span class="arg">mode</span> <span class="c">/* [IN] モードフラグ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>新しく作成するファイル・オブジェクト構造体へのポインタを指定します。以降、そのファイルを閉じるまでこのファイル・オブジェクトを使用してファイル操作をします。</dd>
|
||||
<dt>path</dt>
|
||||
<dd>開くファイルの<a href="filename.html">ファイル名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
<dt>mode</dt>
|
||||
<dd>ファイルのアクセス方法やオープン方法を決めるフラグです。このパラメータには次の組み合わせを指定します。<br>
|
||||
<table class="lst">
|
||||
<tr><th>値</th><th>意味</th></tr>
|
||||
<tr><td>FA_READ</td><td>読み出しモードで開きます。読み書きする場合は<tt>FA_WRITE</tt>と共に指定します。</td></tr>
|
||||
<tr><td>FA_WRITE</td><td>書き込みモードで開きます。読み書きする場合は<tt>FA_READ</tt>と共に指定します。</td></tr>
|
||||
<tr><td>FA_OPEN_EXISTING</td><td>既存のファイルを開きます。ファイルが無いときはエラーになります。(デフォルト)</td></tr>
|
||||
<tr><td>FA_OPEN_ALWAYS</td><td>既存のファイルを開きます。ファイルが無いときはファイルを作成します。追記の場合は、この方法でオープンした後、<a href="lseek.html"><tt>f_lseek()</tt></a>でファイルの最後尾に移動してください。</td></tr>
|
||||
<tr><td>FA_CREATE_NEW</td><td>ファイルを作成します。同名のファイルがある場合は、<tt>FR_EXIST</tt>で失敗します。</td></tr>
|
||||
<tr><td>FA_CREATE_ALWAYS</td><td>ファイルを作成します。同名のファイルがある場合は、サイズを0にしてから開きます。</td></tr>
|
||||
</table>
|
||||
</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#ex">FR_EXIST</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#lo">FR_LOCKED</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>,
|
||||
<a href="rc.html#tf">FR_TOO_MANY_OPEN_FILES</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>既存のファイルを開いたり、新しいファイルを作成します。関数が成功するとファイル・オブジェクトが作成され、以降そのファイルに対するアクセスに使用します。ファイルを閉じるときは、<a href="close.html"><tt>f_close()</tt></a>を使用します。何らかの変更が行われたファイルがその後正しく閉じられなかった場合、そのファイルが破損する場合があります。</p>
|
||||
<p>既に開かれているファイルを開く必要がある場合は、<a href="appnote.html#dup">多重アクセス制御</a>を参照してください。しかし、一つのファイルに対する書き込みモードを含む重複オープンは常に禁止です。</p>
|
||||
<p>ファイル・アクセスを開始する前に、<a href="mount.html"><tt>f_mount()</tt></a>を使ってそれぞれの論理ドライブにワーク・エリア(ファイル・システム・オブジェクト)を与える必要があります。この初期化の後、その論理ドライブに対して全てのファイル関数が使えるようになります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>全ての構成で使用可能です。<tt>_FS_READONLY == 1</tt>のときは、<tt>FA_WRITE, FA_CREATE_ALWAYS, FA_CREATE_NEW, FA_OPEN_ALWAYS</tt>の各フラグはサポートされません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* テキストファイルを読み出して表示 */</span>
|
||||
|
||||
FATFS FatFs; <span class="c">/* 論理ドライブのワーク・エリア(ファイル・システム・オブジェクト) */</span>
|
||||
|
||||
int main (void)
|
||||
{
|
||||
FIL fil; <span class="c">/* ファイル・オブジェクト */</span>
|
||||
char line[82]; <span class="c">/* 行バッファ */</span>
|
||||
FRESULT fr; <span class="c">/* 戻り値 */</span>
|
||||
|
||||
|
||||
<span class="c">/* デフォルト・ドライブにワークエリアを与える */</span>
|
||||
f_mount(&FatFs, "", 0);
|
||||
|
||||
<span class="c">/* テキスト・ファイルを開く */</span>
|
||||
fr = f_open(&fil, "message.txt", FA_READ);
|
||||
if (fr) return (int)fr;
|
||||
|
||||
<span class="c">/* 1行ずつ読み出して表示 */</span>
|
||||
while (f_gets(line, sizeof line, &fil))
|
||||
printf(line);
|
||||
|
||||
<span class="c">/* ファイルを閉じる */</span>
|
||||
f_close(&fil);
|
||||
|
||||
return 0;
|
||||
}
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* ドライブ1のファイル "file.bin" をドライブ0へコピー */</span>
|
||||
|
||||
int main (void)
|
||||
{
|
||||
FATFS fs[2]; <span class="c">/* 論理ドライブのワークエリア(ファイル・システム・オブジェクト) */</span>
|
||||
FIL fsrc, fdst; <span class="c">/* ファイル・オブジェクト */</span>
|
||||
BYTE buffer[4096]; <span class="c">/* File copy buffer */</span>
|
||||
FRESULT fr; <span class="c">/* FatFs function common result code */</span>
|
||||
UINT br, bw; <span class="c">/* File R/W count */</span>
|
||||
|
||||
<span class="c">/* ドライブ0,1にワーク・エリアを与える */</span>
|
||||
f_mount(&fs[0], "0:", 0);
|
||||
f_mount(&fs[1], "1:", 0);
|
||||
|
||||
<span class="c">/* ドライブ1のコピー元ファイルを開く */</span>
|
||||
res = f_open(&fsrc, "1:file.dat", FA_OPEN_EXISTING | FA_READ);
|
||||
if (fr) return (int)fr;
|
||||
|
||||
<span class="c">/* ドライブ0にコピー先ファイルを作成する */</span>
|
||||
res = f_open(&fdst, "0:file.dat", FA_CREATE_ALWAYS | FA_WRITE);
|
||||
if (fr) return (int)fr;
|
||||
|
||||
<span class="c">/* コピー元からコピー先にデータ転送する */</span>
|
||||
for (;;) {
|
||||
res = f_read(&fsrc, buffer, sizeof buffer, &br); <span class="c">/* コピー元からから読み出す */</span>
|
||||
if (res || br == 0) break; <span class="c">/* エラーかファイル終端 */</span>
|
||||
res = f_write(&fdst, buffer, br, &bw); <span class="c">/* それをコピー先に書き込む */</span>
|
||||
if (res || bw < br) break; <span class="c">/* エラーかディスク満杯 */</span>
|
||||
}
|
||||
|
||||
<span class="c">/* 全てのファイルを閉じる */</span>
|
||||
f_close(&fsrc);
|
||||
f_close(&fdst);
|
||||
|
||||
<span class="c">/* ワーク・エリアを開放する */</span>
|
||||
f_mount(NULL, "0:", 0);
|
||||
f_mount(NULL, "1:", 0);
|
||||
|
||||
return (int)fr;
|
||||
}
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="read.html">f_read</a>, <a href="write.html">f_write</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a>, <a href="sfatfs.html">FATFS</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
76
3rdparty/fatfs-0.10b/doc/ja/opendir.html
vendored
76
3rdparty/fatfs-0.10b/doc/ja/opendir.html
vendored
|
|
@ -1,76 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/opendir.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_opendir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_opendir</h2>
|
||||
<p>ディレクトリを開きます。</p>
|
||||
<pre>
|
||||
FRESULT f_opendir (
|
||||
DIR* <span class="arg">dp</span>, <span class="c">/* [OUT] ディレクトリ・ブジェクト構造体へのポインタ */</span>
|
||||
const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] ディレクトリ名へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>dp</dt>
|
||||
<dd>空のディレクトリ・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>path</dt>
|
||||
<dd>オープンするディレクトリの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>,
|
||||
<a href="rc.html#tf">FR_TOO_MANY_OPEN_FILES</a>
|
||||
</p>
|
||||
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ディレクトリを開きます。正常終了したら、作成された<tt>DIR</tt>構造体を使ってこのディレクトリの項目を順次読み出せます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_MINIMIZE <= 1</tt>のとき使用可能になります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="readdir.html">f_readdir</a>, <a href="closedir.html">f_closedir</a>, <a href="sdir.html">DIR</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
93
3rdparty/fatfs-0.10b/doc/ja/printf.html
vendored
93
3rdparty/fatfs-0.10b/doc/ja/printf.html
vendored
|
|
@ -1,93 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/printf.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_printf</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_printf</h2>
|
||||
<p>ファイルに書式化文字列を書き込みます。</p>
|
||||
<pre>
|
||||
int f_printf (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
const TCHAR* <span class="arg">fmt</span>, <span class="c">/* [IN] 書式制御文字列 */</span>
|
||||
...
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>fmt</dt>
|
||||
<dd>ヌル文字<tt>'\0'</tt>終端の書式制御文字列を指すポインタを指定します。ヌル文字は書き込まれません。</dd>
|
||||
<dt>...</dt>
|
||||
<dd>オプションの引数。</dd>
|
||||
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>文字列が正常に書き込まれると、書き込まれた文字数が返されます。ディスクが満杯またはその他エラーにより正常に書き込まれなかったときは、関数は失敗し<tt>EOF (-1)</tt>が返されます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>この関数は、<a href="putc.html"><tt>f_putc()</tt></a>および<a href="puts.html"><tt>f_puts()</tt></a>のラッパー関数です。書式制御機能はC標準ライブラリのサブセットとなっていて、書式制御文字は次に示すものが使用可能です。</p>
|
||||
<ul>
|
||||
<li>タイプ: <tt>c C s S d D u U x X b B</tt></li>
|
||||
<li>精度指定: <tt>l L</tt></li>
|
||||
<li>フラグ: <tt>0 -</tt></li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_USE_STRFUNC</tt>が1または2のとき使用可能になります。2の時は、出力に含まれる<tt>'\n'</tt>が<tt>'\r'+'\n'</tt>に展開されてファイルに書き込まれます。</p>
|
||||
<p>APIにUnicodeが選択(<tt>_LFN_UNICODE</tt>が1)されているときは、<tt class="arg">fmt</tt>はUnicode文字列になりますが、ファイル上のエンコードは、<tt>_STRF_ENCODE</tt>オプションで選択できます。それ以外の時は無変換(1バイト/1文字)で書き込みます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
f_printf(&fil, "%d", 1234); <span class="c">/* "1234" */</span>
|
||||
f_printf(&fil, "%6d,%3d%%", -200, 5); <span class="c">/* " -200, 5%" */</span>
|
||||
f_printf(&fil, "%ld", 12345L); <span class="c">/* "12345" */</span>
|
||||
f_printf(&fil, "%06d", 25); <span class="c">/* "000025" */</span>
|
||||
f_printf(&fil, "%06d", -25); <span class="c">/* "000-25" */</span>
|
||||
f_printf(&fil, "%-6d", 25); <span class="c">/* "25 " */</span>
|
||||
f_printf(&fil, "%u", -1); <span class="c">/* "65535" or "4294967295" */</span>
|
||||
f_printf(&fil, "%04x", 0xAB3); <span class="c">/* "0ab3" */</span>
|
||||
f_printf(&fil, "%08LX", 0x123ABCL); <span class="c">/* "00123ABC" */</span>
|
||||
f_printf(&fil, "%016b", 0x550F); <span class="c">/* "0101010100001111" */</span>
|
||||
f_printf(&fil, "%s", "String"); <span class="c">/* "String" */</span>
|
||||
f_printf(&fil, "%8s", "abc"); <span class="c">/* " abc" */</span>
|
||||
f_printf(&fil, "%-8s", "abc"); <span class="c">/* "abc " */</span>
|
||||
f_printf(&fil, "%c", 'a'); <span class="c">/* "a" */</span>
|
||||
f_printf(&fil, "%f", 10.0); <span class="c">/* 浮動小数点は未サポート */</span>
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="putc.html">f_putc</a>, <a href="puts.html">f_puts</a>, <a href="gets.html">f_gets</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/putc.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/putc.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/putc.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_putc</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_putc</h2>
|
||||
<p>ファイルに文字を書き込みます。</p>
|
||||
<pre>
|
||||
int f_putc (
|
||||
TCHAR <span class="arg">chr</span>, <span class="c">/* [IN] 書き込む文字 */</span>
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>chr</dt>
|
||||
<dd>書き込む文字を指定します。</dd>
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>文字が正常に書き込まれると書き込んだ文字数が返されます。ディスクが満杯またはエラーにより書き込まれなかったときは<tt>EOF (-1)</tt>が返されます。</p>
|
||||
<p>APIにUnicodeが選択(<tt>_LFN_UNICODE</tt>が1)されているときは、<tt class="arg">chr</tt>はUTF-16文字になりますが、ファイル上のエンコードは、<tt>_STRF_ENCODE</tt>オプションで選択できます。それ以外の時は無変換(1バイト/1文字)で書き込みます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>1文字をファイルに書き込みます。この関数は<a href="write.html"><tt>f_write()</tt></a>のラッパー関数です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_USE_STRFUNC</tt>が 1または 2のとき使用可能です。2を指定すると、<tt>'\n'</tt>は<tt>'\r'+'\n'</tt>に展開されてファイルに書き込まれます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="puts.html">f_puts</a>, <a href="printf.html">f_printf</a>, <a href="gets.html">f_gets</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/puts.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/puts.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/puts.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_puts</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_puts</h2>
|
||||
<p>ファイルに文字列を書き込みます。</p>
|
||||
<pre>
|
||||
int f_puts (
|
||||
const TCHAR* <span class="arg">str</span>, <span class="c">/* [IN] 書き込む文字列 */</span>
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>str</dt>
|
||||
<dd>書き込むヌル文字<tt>'\0'</tt>終端の文字列を指すポインタを指定します。ヌル文字は書き込まれません。</dd>
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>文字列が正常に書き込まれると、書き込まれた文字数が返されます。ディスクが満杯またはエラーにより書き込みが中断されたときは<tt>EOF (-1)</tt>が返されます。</p>
|
||||
<p>APIにUnicodeが選択(<tt>_LFN_UNICODE</tt>が1)されているときは、<tt class="arg">str</tt>はUTF-16文字列になりますが、ファイル上のエンコードは、<tt>_STRF_ENCODE</tt>オプションで選択できます。それ以外の時は無変換(1バイト/1文字)で書き込みます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>文字列をファイルに書き込みます。この関数は<a href="write.html"><tt>f_write()</tt></a>のラッパー関数です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_USE_STRFUNC</tt>が1または2のとき使用可能です。2を指定すると、文字列に含まれる<tt>'\n'</tt>は<tt>'\r'+'\n'<tt>に展開されてファイルに書き込まれます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="putc.html">f_putc</a>, <a href="printf.html">f_printf</a>, <a href="gets.html">f_gets</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
85
3rdparty/fatfs-0.10b/doc/ja/rc.html
vendored
85
3rdparty/fatfs-0.10b/doc/ja/rc.html
vendored
|
|
@ -1,85 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/rc.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - 戻り値</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>ファイル関数の戻り値</h1>
|
||||
<p>FatFsのAPIでは、一部の関数を除き結果に応じた共通のリザルト・コード(FRESULT型(enum))を返します。関数が成功した場合は0を返します。失敗した場合は0以外の値を返し、値はエラーの種類を示します。</p>
|
||||
|
||||
<dl class="ret">
|
||||
<dt id="ok">FR_OK (0)</dt>
|
||||
<dd>関数は成功した。</dd>
|
||||
<dt id="de">FR_DISK_ERR</dt>
|
||||
<dd>下位レイヤ(<tt>disk_read(), disk_write(), disk_ioctl()</tt>関数)で回復不能なエラーが発生した。<br>※開かれたファイルの操作においてこのエラーが発生すると、そのファイル・オブジェクトはアボート状態となり、クローズ以外のの操作ができなくなります。</dd>
|
||||
<dt id="ie">FR_INT_ERR</dt>
|
||||
<dd>内部処理の健全性に異常が検出された。原因としては次のようなことが考えられます。
|
||||
<ul>
|
||||
<li>ボリューム上のFAT構造にエラーがある。</li>
|
||||
<li>スタック不足や不正なメモリ操作等によるワーク・エリアの破壊。多くはこれが原因。</li>
|
||||
</ul>
|
||||
※開かれたファイルの操作においてこのエラーが発生すると、そのファイル・オブジェクトはアボート状態となり、クローズ以外の操作ができなくなります。</dd>
|
||||
<dt id="nr">FR_NOT_READY</dt>
|
||||
<dd>物理ドライブが動作可能な状態にない。または、ドライブの初期化に失敗した。</dd>
|
||||
<dt id="nf">FR_NO_FILE</dt>
|
||||
<dd>指定されたファイルが見つからなかった。</dd>
|
||||
<dt id="np">FR_NO_PATH</dt>
|
||||
<dd>指定されたパスが見つからなかった。</dd>
|
||||
<dt id="in">FR_INVALID_NAME</dt>
|
||||
<dd>指定された文字列が<a href="filename.html">パス名のフォーマット</a>として無効。</dd>
|
||||
<dt id="dn">FR_DENIED</dt>
|
||||
<dd>そのオブジェクトに対する操作の拒否。原因としては次のようなことが考えられます。
|
||||
<ul>
|
||||
<li>書き込み禁止属性(<tt>AM_RDO</tt>)を持つファイルを書き込みモードで開こうとした。</li>
|
||||
<li>書き込み禁止属性を持つファイルやディレクトリを削除しようとした。</li>
|
||||
<li>空でないディレクトリまたはカレント・ディレクトリを削除しようとした。</li>
|
||||
<li><tt>FA_READ</tt>フラグを付けずに開いたファイルに対して読み出しを行った。</li>
|
||||
<li><tt>FA_WRITE</tt>フラグを付けずに開いたファイルに対して書き込みまたはそれに類する操作を行った。</li>
|
||||
<li>ボリュームまたはディレクトリ・テーブルが満杯でファイルやディレクトリを作成できなかった。</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="ex">FR_EXIST</dt>
|
||||
<dd>新しく作成しようとしたオブジェクトと同じ名前のオブジェクトが既に存在する。</dd>
|
||||
<dt id="io">FR_INVALID_OBJECT</dt>
|
||||
<dd>指定されたファイル・オブジェクトやディレクトリ・オブジェクトが無効(オープンされていない、既に閉じられた、破損しているなど)、またはヌル・ポインタが渡された。また、開かれたままのオブジェクトは、それの属するボリュームのマウント動作により無効となります。</dd>
|
||||
<dt id="wp">FR_WRITE_PROTECTED</dt>
|
||||
<dd>物理ドライブが書き込み禁止状態のとき、書き込みを伴う操作を行おうとした。</dd>
|
||||
<dt id="id">FR_INVALID_DRIVE</dt>
|
||||
<dd>パス名中に指定されたドライブ番号が無効、またはパス名にヌル・ポインタが渡された。(関連オプション: <tt>_VOLUMES</tt>)</dd>
|
||||
<dt id="ne">FR_NOT_ENABLED</dt>
|
||||
<dd>そのボリュームの操作に必要なワーク・エリア(ファイル・システム・オブジェクト構造体)が与えられていない。</dd>
|
||||
<dt id="ns">FR_NO_FILESYSTEM</dt>
|
||||
<dd>物理ドライブ上に有効なFATボリュームが見つからなかった。</dd>
|
||||
<dt id="ma">FR_MKFS_ABORTED</dt>
|
||||
<dd><tt>f_mkfs()</tt>の処理が開始前に中断された。原因としては次のようなことが考えられます。
|
||||
<ul>
|
||||
<li>ボリュームが小さすぎる。</li>
|
||||
<li>FATタイプの計算に矛盾が見つかった。クラスタ数がFATタイプの境界付近になるときに発生する場合があります。</li>
|
||||
<li>その論理ドライブに対応する区画が見つからなかった。(関連オプション: <tt>_MULTI_PARTITION</tt>)</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="tm">FR_TIMEOUT</dt>
|
||||
<dd><a href="appnote.html#reentrant">再入制御</a>による待ち時間が定義された時間を越えたため、関数は実行されなかった。(関連オプション: <tt>_TIMEOUT</tt>)</dd>
|
||||
<dt id="lo">FR_LOCKED</dt>
|
||||
<dd><a href="appnote.html#dup">多重アクセス排他機能</a>により、そのファイルやディレクトリに対して行おうとしたアクセスが拒否された。(関連オプション: <tt>_FS_LOCK</tt>)</dd>
|
||||
<dt id="nc">FR_NOT_ENOUGH_CORE</dt>
|
||||
<dd>メモリ不足による失敗。原因としては次のようなことが考えられます。
|
||||
<ul>
|
||||
<li>LFN操作バッファの動的確保に失敗した。(関連オプション: <tt>_USE_LFN</tt>)</li>
|
||||
<li>与えられた配列のサイズが実際に必要なサイズに対して不足している。</li>
|
||||
</ul>
|
||||
</dd>
|
||||
<dt id="tf">FR_TOO_MANY_OPEN_FILES</dt>
|
||||
<dd>同時オープン可能なファイル数を越えてファイルを開こうとした。(関連オプション: <tt>_FS_LOCK</tt>)</dd>
|
||||
<dt id="ip">FR_INVALID_PARAMETER</dt>
|
||||
<dd>与えられたパラメータが無効または矛盾している。</dd>
|
||||
</dl>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
75
3rdparty/fatfs-0.10b/doc/ja/read.html
vendored
75
3rdparty/fatfs-0.10b/doc/ja/read.html
vendored
|
|
@ -1,75 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/read.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_read</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_read</h2>
|
||||
<p>ファイルからデータを読み出します。</p>
|
||||
<pre>
|
||||
FRESULT f_read (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] ファイル・オブジェクト構造体 */</span>
|
||||
void* <span class="arg">buff</span>, <span class="c">/* [OUT] 読み出したデータを格納するバッファ */</span>
|
||||
UINT <span class="arg">btr</span>, <span class="c">/* [IN] 読み出すバイト数 */</span>
|
||||
UINT* <span class="arg">br</span> <span class="c">/* [OUT] 読み出されたバイト数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>読み出したデータを格納するバッファを指すポインタを指定します。</dd>
|
||||
<dt>btr</dt>
|
||||
<dd>読み出すバイト数(0～<tt>UINT</tt>型の最大値)を指定します。</dd>
|
||||
<dt>br</dt>
|
||||
<dd>実際に読み出されたバイト数を格納する変数を指すポインタを指定します。戻り値は関数の成否にかかわらず常に有効です。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>読み込み開始位置は、現在のリード/ライト・ポインタからになります。リード/ライト・ポインタは読み込まれたバイト数だけ進みます。関数が正常終了した後は、<tt class="arg">*br</tt>の値をチェックすべきです。<tt class="arg">*br</tt>が<tt class="arg">btr</tt>よりも小さいときは、読み込み中にファイルの終端に達したことを示しています。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>全ての構成で使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="gets.html">fgets</a>, <a href="write.html">f_write</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
126
3rdparty/fatfs-0.10b/doc/ja/readdir.html
vendored
126
3rdparty/fatfs-0.10b/doc/ja/readdir.html
vendored
|
|
@ -1,126 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/readdir.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_readdir</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_readdir</h2>
|
||||
<p>ディレクトリ項目を読み出します。</p>
|
||||
<pre>
|
||||
FRESULT f_readdir (
|
||||
DIR* <span class="arg">dp</span>, <span class="c">/* [IN] ディレクトリ・ブジェクト構造体へのポインタ */</span>
|
||||
FILINFO* <span class="arg">fno</span> <span class="c">/* [OUT] ファイル情報構造体へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>dp</dt>
|
||||
<dd>有効なディレクトリ・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>fno</dt>
|
||||
<dd>読み出したディレクトリ項目を格納するファイル情報構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ディレクトリの項目(ファイルとディレクトリ)を順次読み出します。この関数を繰り返し実行することによりそのディレクトリの全ての項目を読み出すことができます。得られるファイル情報の詳細については <tt>FILINFO</tt>構造体を参照してください。全ての項目が読み出され、読み出す項目がもう無いときは、<tt>fname[]</tt>メンバにヌル文字列が返されます。<tt class="arg">fno</tt>にヌル・ポインタを指定すると、そのディレクトリのリード・インデックスを先頭に巻き戻します。また、この関数は次に示すように関連する構成オプションにより動作が変わります。</p>
|
||||
<p>ドット・エントリ("."、"..")は、相対パスが有効なとき(<tt>_FS_RPATH >= 1</tt>)にのみ出力に現れます。</p>
|
||||
<p>LFN機能が有効な時は、この関数の呼び出しに先立って<tt>FILINFO</tt>構造体の<tt>lfname</tt>と<tt>lfsize</tt>が有効な値で初期化されていなければなりません。<tt>lfname</tt>はLFNを格納するバッファで、<tt>lfsize</tt>はそのバッファの要素数です。LFNを読み出す必要がないときは、<tt>lfname</tt>にヌル・ポインタをセットしてください。次の条件に一つでも該当する場合は、LFN格納バッファにヌル文字列が返されます。</p>
|
||||
<ul>
|
||||
<li>ディレクトリ項目にLFN情報が存在しない。</li>
|
||||
<li>LFNの長さに対してLFN格納バッファまたはLFN操作バッファのサイズが不十分。</li>
|
||||
<li>LFNに現在のOEMコードに存在しない文字が含まれている。(非Unicode構成のとき)</li>
|
||||
</ul>
|
||||
<p>また、ディレクトリ項目にLFN情報が存在しない場合は、<tt>fname[]</tt>に英小文字が含まれる場合があります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_MINIMIZE <= 1</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
FRESULT scan_files (
|
||||
char* path <span class="c">/* 開始ノード (ワークエリアとしても使用) */</span>
|
||||
)
|
||||
{
|
||||
FRESULT res;
|
||||
FILINFO fno;
|
||||
DIR dir;
|
||||
int i;
|
||||
char *fn; <span class="c">/* 非Unicode構成を想定 */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
static char lfn[_MAX_LFN + 1];
|
||||
fno.lfname = lfn;
|
||||
fno.lfsize = sizeof lfn;
|
||||
<span class="k">#endif</span>
|
||||
|
||||
|
||||
res = f_opendir(&dir, path); <span class="c">/* ディレクトリを開く */</span>
|
||||
if (res == FR_OK) {
|
||||
i = strlen(path);
|
||||
for (;;) {
|
||||
res = f_readdir(&dir, &fno); <span class="c">/* ディレクトリ項目を1個読み出す */</span>
|
||||
if (res != FR_OK || fno.fname[0] == 0) break; <span class="c">/* エラーまたは項目無しのときは抜ける */</span>
|
||||
if (fno.fname[0] == '.') continue; <span class="c">/* ドットエントリは無視 */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
fn = *fno.lfname ? fno.lfname : fno.fname;
|
||||
<span class="k">#else</span>
|
||||
fn = fno.fname;
|
||||
<span class="k">#endif</span>
|
||||
if (fno.fattrib & AM_DIR) { <span class="c">/* ディレクトリ */</span>
|
||||
sprintf(&path[i], "/%s", fn);
|
||||
res = scan_files(path);
|
||||
if (res != FR_OK) break;
|
||||
path[i] = 0;
|
||||
} else { <span class="c">/* ファイル */</span>
|
||||
printf("%s/%s\n", path, fn);
|
||||
}
|
||||
}
|
||||
f_closedir(&dir);
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="opendir.html">f_opendir</a>, <a href="closedir.html">f_closedir</a>, <a href="stat.html">f_stat</a>, <a href="sfileinfo.html">FILINFO</a>, <a href="sdir.html">DIR</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
82
3rdparty/fatfs-0.10b/doc/ja/rename.html
vendored
82
3rdparty/fatfs-0.10b/doc/ja/rename.html
vendored
|
|
@ -1,82 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/rename.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_rename</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_rename</h2>
|
||||
<p>ファイルまたはサブ・ディレクトリの名前の変更または移動します。</p>
|
||||
<pre>
|
||||
FRESULT f_rename (
|
||||
const TCHAR* <span class="arg">old_name</span>, <span class="c">/* [IN] 古いオブジェクト名 */</span>
|
||||
const TCHAR* <span class="arg">new_name</span> <span class="c">/* [IN] 新しいオブジェクト名 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>old_name</dt>
|
||||
<dd>変更対象のファイルまたはサブ・ディレクトリの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
<dt>new_name</dt>
|
||||
<dd>新しいパス名を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。既に存在するオブジェクトと同じ名前は使えません。また、ドライブ番号は指定しても無視され、<tt class="arg">old_name</tt>で決められた論理ドライブ上のオブジェクトとして扱われます。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#ex">FR_EXIST</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#lo">FR_LOCKED</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ファイルまたはサブ・ディレクトリの名前を変更します。また、同時に別のディレクトリへの移動も可能ですが、異なるドライブへの移動はできません。<em>開かれているオブジェクトに対して使用してはなりません</em>。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* ファイルまたはサブディレクトリの名前を変更する */</span>
|
||||
f_rename("oldname.txt", "newname.txt");
|
||||
|
||||
<span class="c">/* ファイルまたはサブディレクトリの名前の変更と別のディレクトリへの移動 */</span>
|
||||
f_rename("oldname.txt", "dir1/newname.txt");
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
40
3rdparty/fatfs-0.10b/doc/ja/sdir.html
vendored
40
3rdparty/fatfs-0.10b/doc/ja/sdir.html
vendored
|
|
@ -1,40 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/sdir.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - DIR</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>DIR</h2>
|
||||
<p><tt>DIR</tt>構造体は、<tt>f_opendir(), f_readdir()</tt>のワーク・エリアとして使用されます。アプリケーションは、この構造体のメンバを書き換えてはなりません。</p>
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
FATFS* fs; <span class="c">/* 親ファイル・システム・オブジェクトへのポインタ */</span>
|
||||
WORD id; <span class="c">/* 親ファイル・システム・オブジェクトのマウントID */</span>
|
||||
WORD index; <span class="c">/* 次に検索開始するディレクトリ・インデックス番号 */</span>
|
||||
DWORD sclust; <span class="c">/* テーブル開始クラスタ (0:ルート) */</span>
|
||||
DWORD clust; <span class="c">/* 現在のクラスタ番号 */</span>
|
||||
DWORD sect; <span class="c">/* 現在のセクタ番号 */</span>
|
||||
BYTE* dir; <span class="c">/* 現在のSFNエントリへのポインタ */</span>
|
||||
BYTE* fn; <span class="c">/* SFNバッファへのポインタ (in/out) {file[8],ext[3],status[1]} */</span>
|
||||
<span class="k">#if</span> _FS_LOCK
|
||||
UINT lockid; <span class="c">/* ロックID */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
WCHAR* lfn; <span class="c">/* LFNバッファへのポインタ (in/out) */</span>
|
||||
WORD lfn_idx; <span class="c">/* LFNエントリの先頭インデックス (0xFFFF:無効) */</span>
|
||||
<span class="k">#endif</span>
|
||||
} DIR;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
89
3rdparty/fatfs-0.10b/doc/ja/setlabel.html
vendored
89
3rdparty/fatfs-0.10b/doc/ja/setlabel.html
vendored
|
|
@ -1,89 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/setlabel.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_setlabel</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_setlabel</h2>
|
||||
<p>ボリュームにボリューム・ラベルを設定します。</p>
|
||||
<pre>
|
||||
FRESULT f_setlabel (
|
||||
const TCHAR* <span class="arg">label</span> <span class="c">/* [IN] 設定するボリューム・ラベルへのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>label</dt>
|
||||
<dd>設定するボリューム・ラベルを示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>文字列の先頭にドライブ番号を含む場合は、その論理ドライブに対して設定されます。含まない場合は、デフォルト・ドライブに設定されます。ボリューム・ラベルを削除するときは、ヌル文字列を指定します。ボリューム・ラベルのフォーマットは、ファイル名(SFN)とほぼ同じですが、次の点が異なります。</p>
|
||||
<ul>
|
||||
<li>ローカル文字コード換算で11バイト以下。LFN拡張は適用されません。</li>
|
||||
<li>ピリオドを含むことはできない。</li>
|
||||
<li>任意の位置にスペースを置くことができる。ただし、最後尾となるスペースは除去される。</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_USE_LABEL == 1</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
<span class="c">/* デフォルト・ドライブにボリューム・ラベルを設定 */</span>
|
||||
f_setlabel("DATA DISK");
|
||||
|
||||
<span class="c">/* ドライブ2にボリューム・ラベルを設定 */</span>
|
||||
f_setlabel("2:DISK 3 OF 4");
|
||||
|
||||
<span class="c">/* ドライブ2のボリューム・ラベルを削除 */</span>
|
||||
f_setlabel("2:");
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<tt><a href="getlabel.html">f_getlabel</a></tt>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
55
3rdparty/fatfs-0.10b/doc/ja/sfatfs.html
vendored
55
3rdparty/fatfs-0.10b/doc/ja/sfatfs.html
vendored
|
|
@ -1,55 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/sfatfs.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FATFS</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FATFS</h2>
|
||||
<p><tt>FATFS</tt>構造体(ファイル・システム・オブジェクト)は、個々の論理ドライブのダイナミック・ワーク・エリアを保持し、<tt>f_mount()</tt>でFatFsモジュールに登録されます。初期化が行われるタイミングは、<tt>f_mount()</tt>(強制マウント指定)の実行またはメディア交換の後の最初のファイル・アクセスの時です。アプリケーションは、この構造体のメンバを書き換えてはなりません。</p>
|
||||
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
BYTE fs_type; <span class="c">/* FATタイプ */</span>
|
||||
BYTE drv; <span class="c">/* 物理ドライブ番号 */</span>
|
||||
BYTE csize; <span class="c">/* クラスタ当たりのセクタ数 (1,2,4,8,...,128)*/</span>
|
||||
BYTE n_fats; <span class="c">/* FATの多重化数 (1,2) */</span>
|
||||
BYTE wflag; <span class="c">/* win[]ダーティ・フラグ */</span>
|
||||
BYTE fsi_flag; <span class="c">/* FSINFOフラグ (b7:Disabled, b0:Dirty)*/</span>
|
||||
WORD id; <span class="c">/* ファイル・システム・マウントID */</span>
|
||||
WORD n_rootdir; <span class="c">/* ルート・ディレクトリのエントリ数 (FAT12/16) */</span>
|
||||
<span class="k">#if</span> _MAX_SS != _MIN_SS
|
||||
WORD ssize; <span class="c">/* セクタ・サイズ (512, 1024, 2048 or 4096) */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_REENTRANT
|
||||
_SYNC_t sobj; <span class="c">/* 同期オブジェクトID */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> !_FS_READONLY
|
||||
DWORD last_clust; <span class="c">/* FSINFO: 最後に割り当てられたクラスタ番号 */</span>
|
||||
DWORD free_clust; <span class="c">/* FSINFO: 空きクラスタ数 */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_RPATH
|
||||
DWORD cdir; <span class="c">/* カレント・ディレクトリのクラスタ (0:ルート) */</span>
|
||||
<span class="k">#endif</span>
|
||||
DWORD n_fatent; <span class="c">/* FATエントリ数 (総クラスタ数 + 2) */</span>
|
||||
DWORD fsize; <span class="c">/* FAT 1個のセクタ数 */</span>
|
||||
DWORD volbase; <span class="c">/* ボリューム開始セクタ */</span>
|
||||
DWORD fatbase; <span class="c">/* FAT領域開始セクタ */</span>
|
||||
DWORD dirbase; <span class="c">/* ルート・ディレクトリ領域開始セクタ(クラスタ) */</span>
|
||||
DWORD database; <span class="c">/* データ領域開始セクタ */</span>
|
||||
DWORD winsect; <span class="c">/* win[]に現れているセクタ番号 */</span>
|
||||
BYTE win[_MAX_SS]; <span class="c">/* ディスク・アクセス・ウィンドウ */</span>
|
||||
} FATFS;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
48
3rdparty/fatfs-0.10b/doc/ja/sfile.html
vendored
48
3rdparty/fatfs-0.10b/doc/ja/sfile.html
vendored
|
|
@ -1,48 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/sfile.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FIL</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FIL</h2>
|
||||
<p><tt>FIL</tt>構造体(ファイル・オブジェクト)は、<tt>f_open()</tt>で初期化され、以後そのファイルの状態を保持します。また、<tt>f_close()</tt>でファイルが閉じられると無効化されます。アプリケーションは、この構造体のメンバを書き換えてはなりません(<tt>cltbl</tt>は例外)。非タイニー構成では、内部にセクタ・バッファが確保されるので、占有サイズに注意が必要です。</p>
|
||||
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
FATFS* fs; <span class="c">/* 親ファイル・システム・オブジェクトへのポインタ */</span>
|
||||
WORD id; <span class="c">/* 親ファイル・システム・オブジェクトのマウントID */</span>
|
||||
BYTE flag; <span class="c">/* ファイル・ステータス・フラグ */</span>
|
||||
BYTE err; <span class="c">/* エラー中断フラグ */</span>
|
||||
DWORD fptr; <span class="c">/* ファイル読み書きポインタ (ファイル先頭からのバイト・オフセット) */</span>
|
||||
DWORD fsize; <span class="c">/* ファイル・サイズ(バイト単位) */</span>
|
||||
DWORD sclust; <span class="c">/* ファイル開始クラスタ番号 (0:割り当て無し) */</span>
|
||||
DWORD clust; <span class="c">/* 現在のクラスタ */</span>
|
||||
DWORD dsect; <span class="c">/* 現在のデータ・セクタ */</span>
|
||||
<span class="k">#if</span> !_FS_READONLY
|
||||
DWORD dir_sect; <span class="c">/* このファイルのディレクトリ・エントリのあるセクタ */</span>
|
||||
BYTE* dir_ptr; <span class="c">/* このファイルのディレクトリへのポインタ */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _USE_FASTSEEK
|
||||
DWORD* cltbl; <span class="c">/* ファイルのクラスタ・リンク情報へのポインタ (オープン時にNULLがセットされる) */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> _FS_LOCK
|
||||
UINT lockid; <span class="c">/* ファイル・ロックID */</span>
|
||||
<span class="k">#endif</span>
|
||||
<span class="k">#if</span> !_FS_TINY
|
||||
BYTE buf[_MAX_SS]; <span class="c">/* ファイル・プライベート・データ転送バッファ */</span>
|
||||
<span class="k">#endif</span>
|
||||
} FIL;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
70
3rdparty/fatfs-0.10b/doc/ja/sfileinfo.html
vendored
70
3rdparty/fatfs-0.10b/doc/ja/sfileinfo.html
vendored
|
|
@ -1,70 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/sfileinfo.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - FILINFO</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para">
|
||||
<h2>FILINFO</h2>
|
||||
<p><tt>FILINFO</tt>構造体は、<tt>f_stat(), f_readdir()</tt>で返されるファイル情報を保持します。</p>
|
||||
<pre>
|
||||
<span class="k">typedef</span> <span class="k">struct</span> {
|
||||
DWORD fsize; <span class="c">/* ファイル・サイズ */</span>
|
||||
WORD fdate; <span class="c">/* 最後に更新された日付 */</span>
|
||||
WORD ftime; <span class="c">/* 最後に更新された時刻 */</span>
|
||||
BYTE fattrib; <span class="c">/* アトリビュート */</span>
|
||||
TCHAR fname[13]; <span class="c">/* 短いファイル名 (8.3フォーマット) */</span>
|
||||
<span class="k">#if</span> _USE_LFN
|
||||
TCHAR* lfname; <span class="c">/* 長いファイル名のバッファへのポインタ */</span>
|
||||
int lfsize; <span class="c">/* 長いファイル名のバッファのサイズ [文字数] */</span>
|
||||
<span class="k">#endif</span>
|
||||
} FILINFO;
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<h4>メンバ</h4>
|
||||
<dl>
|
||||
<dt>fsize</dt>
|
||||
<dd>ファイルのバイト単位のサイズが格納されます。ディレクトリの場合は常に0です。</dd>
|
||||
<dt>fdate</dt>
|
||||
<dd>ファイルの変更された日付、またはディレクトリの作成された日付が格納されます。<br>
|
||||
<dl>
|
||||
<dt>bit15:9</dt>
|
||||
<dd>1980年を起点とした年が 0..127 で入ります。</dd>
|
||||
<dt>bit8:5</dt>
|
||||
<dd>月が 1..12 の値で入ります。</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>日が 1..31 の値で入ります。</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
<dt>ftime</dt>
|
||||
<dd>ファイルの変更された時刻、またはディレクトリの作成された時刻が格納されます。<br>
|
||||
<dl>
|
||||
<dt>bit15:11</dt>
|
||||
<dd>時が 0..23 の値で入ります。</dd>
|
||||
<dt>bit10:5</dt>
|
||||
<dd>分が 0..59 の値で入ります。</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>秒/2が 0..29 の値で入ります。</dd>
|
||||
</dl>
|
||||
</dd>
|
||||
<dt>fattrib</dt>
|
||||
<dd>属性フラグが格納されます。フラグは<tt>AM_DIR, AM_RDO, AM_HID, AM_SYS, AM_ARC</tt>の組み合わせとなります。</dd>
|
||||
<dt>fname[]</dt>
|
||||
<dd>8.3形式の名前が<tt>'\0'</tt>で終わる文字列として格納されます。非LFN構成のときは、常に大文字で返されます。LFN構成のときは短い名前が返されますが、ASCII英字が小文字になる場合があります。</dd>
|
||||
<dt>lfname</dt>
|
||||
<dd>返される長いファイル名を格納するバッファへのポインタ。この構造体を使用する前にアプリケーションにより初期化されなければなりません。このメンバにNULLが設定されるとLFNは返されません。非LFN構成のときはこのメンバは存在しません。</dd>
|
||||
<dt>lfsize</dt>
|
||||
<dd>長いファイル名を格納するバッファのサイズ(要素数)。この構造体を使用する前にアプリケーションにより初期化されなければなりません。非LFN構成のときはこのメンバは存在しません。</dd>
|
||||
</dl>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/size.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/size.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/size.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_size</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_size</h2>
|
||||
<p>ファイルのサイズを取得します。</p>
|
||||
<pre>
|
||||
DWORD f_size (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>バイト単位のファイル・サイズが返ります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>f_size関数は、現リビジョンではマクロとして実装されています。</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_size(fp) ((fp)->fsize)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>常に使用可能。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
74
3rdparty/fatfs-0.10b/doc/ja/stat.html
vendored
74
3rdparty/fatfs-0.10b/doc/ja/stat.html
vendored
|
|
@ -1,74 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/stat.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_stat</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_stat</h2>
|
||||
<p>ファイルまたはサブ・ディレクトリの存在を調べ、またその情報を取得します。</p>
|
||||
<pre>
|
||||
FRESULT f_stat (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] オブジェクト名へのポインタ */</span>
|
||||
FILINFO* <span class="arg">fno</span> <span class="c">/* [OUT] ファイル情報構造体へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>チェックするオブジェクト名を示すヌル文字<tt>'\0'</tt>終端の文字列を指すポインタを指定します。</dd>
|
||||
<dt>fno</dt>
|
||||
<dd>オブジェクトが存在したときにその情報を格納するファイル情報構造体へのポインタを指定します。この情報が不要なときはヌル・ポインタを指定してください。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>指定されたファイルまたはサブ・ディレクトリの存在を調べます。存在しない場合は、<tt>FR_NO_FILE</tt>が帰ります。存在する場合は<tt>FR_OK</tt>が帰り、ファイル情報構造体にそれ関する情報(サイズ、タイムスタンプ、属性および短いファイル名)がストアされます。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_MINIMIZE == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="opendir.html">f_opendir</a>, <a href="readdir.html">f_readdir</a>, <a href="sfileinfo.html">FILINFO</a>, <a href="sdir.html">DIR</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
66
3rdparty/fatfs-0.10b/doc/ja/sync.html
vendored
66
3rdparty/fatfs-0.10b/doc/ja/sync.html
vendored
|
|
@ -1,66 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/sync.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_sync</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_sync</h2>
|
||||
<p>書き込み中のファイルのキャッシュされた情報をフラッシュします。</p>
|
||||
<pre>
|
||||
FRESULT f_sync (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト構造体へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>syncするファイルのファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>この関数は<tt>f_close()</tt>と同じ処理を実行しますが、ファイルは引き続き開かれたままになり、読み書きを続行できます。ロギングなど、書き込みモードで長時間ファイルが開かれているアプリケーションにおいて、定期的または区切りの良いところでこの関数を使用することにより、不意の電源断やメディアの取り外しにより失われるデータを最小にすることができます。この背景については、<a href="appnote.html#critical">アプリケーション・ノート</a>も参照してください。</p>
|
||||
<p>実際のところ、<tt>f_close()</tt>内ではこの関数を呼び出した後ファイル・オブジェクトを無効化しているだけなので、<tt>f_close()</tt>直前に<tt>f_sync()</tt>を置くことは無意味です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="close.html">f_close</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
62
3rdparty/fatfs-0.10b/doc/ja/tell.html
vendored
62
3rdparty/fatfs-0.10b/doc/ja/tell.html
vendored
|
|
@ -1,62 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/tell.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_tell</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_tell</h2>
|
||||
<p>現在のリード/ライト・ポインタを取得します。</p>
|
||||
<pre>
|
||||
DWORD f_tell (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>現在のリード/ライト・ポインタ(ファイル先頭からのバイト単位のオフセット)が返ります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>f_tell関数は、現リビジョンではマクロとして実装されています。</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_tell(fp) ((fp)->fptr)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p>常に使用可能。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
67
3rdparty/fatfs-0.10b/doc/ja/truncate.html
vendored
67
3rdparty/fatfs-0.10b/doc/ja/truncate.html
vendored
|
|
@ -1,67 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/truncate.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_truncate</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_truncate</h2>
|
||||
<p>ファイル長を切り詰めます。</p>
|
||||
<pre>
|
||||
FRESULT f_truncate (
|
||||
FIL* <span class="arg">fp</span> <span class="c">/* [IN] ファイル・オブジェクトへのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>切り詰め対象ファイルのファイル・オブジェクトへのポインタ</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>ファイルの長さが現在のリード/ライト・ポインタに切り詰められます。リード/ライト・ポインタが既にファイルの終端を指しているときは、この関数は何の効果も持ちません。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
74
3rdparty/fatfs-0.10b/doc/ja/unlink.html
vendored
74
3rdparty/fatfs-0.10b/doc/ja/unlink.html
vendored
|
|
@ -1,74 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/unlink.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_unlink</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_unlink</h2>
|
||||
<p>ファイルまたはサブ・ディレクトリを削除します。</p>
|
||||
<pre>
|
||||
FRESULT f_unlink (
|
||||
const TCHAR* <span class="arg">path</span> <span class="c">/* [IN] オブジェクト名へのポインタ */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>削除対象の<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列へのポインタを指定します。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#lo">FR_LOCKED</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>削除対象のオブジェクトが次の条件に当てはまる場合、そのアクセスは拒否され関数は失敗します。
|
||||
<ul>
|
||||
<li>リード・オンリー属性(<tt>AM_RDO</tt>)を持っている場合は、拒否(<tt>FR_DENIED</tt>)される。</li>
|
||||
<li>空でないサブ・ディレクトリまたはカレント・ディレクトリである場合は、拒否(<tt>FR_DENIED</tt>)される。</li>
|
||||
<li>開かれているファイルまたはサブ・ディレクトリである場合は、<a href="appnote.html#dup">多重アクセス制御</a>が有効なら安全に拒否(<tt>FR_LOCKED</tt>)されますが、そうでないときは不正な操作となり、<em>FAT構造が破壊される可能性</em>があります。</li>
|
||||
</ul>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
99
3rdparty/fatfs-0.10b/doc/ja/utime.html
vendored
99
3rdparty/fatfs-0.10b/doc/ja/utime.html
vendored
|
|
@ -1,99 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/utime.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_utime</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_utime</h2>
|
||||
<p>ファイルまたはサブ・ディレクトリのタイムスタンプを変更します。</p>
|
||||
<pre>
|
||||
FRESULT f_utime (
|
||||
const TCHAR* <span class="arg">path</span>, <span class="c">/* [IN] オブジェクト名へのポインタ */</span>
|
||||
const FILINFO* <span class="arg">fno</span> <span class="c">/* [IN] 設定する日付 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>変更対象のオブジェクトの<a href="filename.html">パス名</a>を示すヌル文字<tt>'\0'</tt>終端の文字列を指定します。</dd>
|
||||
<dt>fno</dt>
|
||||
<dd>設定する日付と時間を<tt>fdate</tt>と<tt>ftime</tt>メンバに設定された<tt>FILINFO</tt>構造体へのポインタ。他のメンバはこの関数では意味を持ちません。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#ok">FR_NO_FILE</a>,
|
||||
<a href="rc.html#np">FR_NO_PATH</a>,
|
||||
<a href="rc.html#in">FR_INVALID_NAME</a>,
|
||||
<a href="rc.html#wp">FR_WRITE_PROTECTED</a>,
|
||||
<a href="rc.html#id">FR_INVALID_DRIVE</a>,
|
||||
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
|
||||
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>,
|
||||
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>オブジェクトのタイムスタンプを変更します。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>使用例</h4>
|
||||
<pre>
|
||||
FRESULT set_timestamp (
|
||||
char *obj, <span class="c">/* ファイル名へのポインタ */</span>
|
||||
int year,
|
||||
int month,
|
||||
int mday,
|
||||
int hour,
|
||||
int min,
|
||||
int sec
|
||||
)
|
||||
{
|
||||
FILINFO fno;
|
||||
|
||||
fno.fdate = (WORD)(((year - 1980) * 512U) | month * 32U | mday);
|
||||
fno.ftime = (WORD)(hour * 2048U | min * 32U | sec / 2U);
|
||||
|
||||
return f_utime(obj, &fno);
|
||||
}
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>で、且つ<tt>_FS_MINIMIZE == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="stat.html">f_stat</a>, <a href="sfileinfo.html">FILINFO</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
75
3rdparty/fatfs-0.10b/doc/ja/write.html
vendored
75
3rdparty/fatfs-0.10b/doc/ja/write.html
vendored
|
|
@ -1,75 +0,0 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="ja">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_j.html">
|
||||
<link rel="alternate" hreflang="en" title="English" href="../en/write.html">
|
||||
<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_write</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_write</h2>
|
||||
<p>ファイルにデータを書き込みます。</p>
|
||||
<pre>
|
||||
FRESULT f_write (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] ファイル・オブジェクト */</span>
|
||||
const void* <span class="arg">buff</span>, <span class="c">/* [IN] 書き込みデータ */</span>
|
||||
UINT <span class="arg">btw</span>, <span class="c">/* [IN] 書き込むバイト数 */</span>
|
||||
UINT* <span class="arg">bw</span> <span class="c">/* [OUT] 書き込まれたバイト数 */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>引数</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>ファイル・オブジェクト構造体へのポインタを指定します。</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>書き込むデータを格納したバッファを指すポインタを指定します。</dd>
|
||||
<dt>btw</dt>
|
||||
<dd>書き込むバイト数(0～<tt>UINT</tt>型の最大値)を指定します。</dd>
|
||||
<dt>bw</dt>
|
||||
<dd>書き込まれたバイト数を格納する変数を指すポインタを指定します。戻り値は関数の成否にかかわらず常に有効です。</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>戻り値</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#de">FR_DENIED</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>解説</h4>
|
||||
<p>書き込み開始位置は、リード/ライト・ポインタの位置からになります。リード/ライト・ポインタは実際に書き込まれたバイト数だけ進みます。関数が正常終了した後、要求したバイト数が書き込まれたかどうか<tt class="arg">*bw</tt>をチェックすべきです。<tt class="arg">*bw</tt>が<tt class="arg">btw</tt>より小さいときは、ディスク・フルを意味します。ディスク・フルが発生しているときまたはそれに近いときは、制御が帰るまで時間がかかる場合があります。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>対応情報</h4>
|
||||
<p><tt>_FS_READONLY == 0</tt>のときに使用可能です。</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>参照</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="read.html">f_read</a>, <a href="putc.html">fputc</a>, <a href="puts.html">fputs</a>, <a href="printf.html">fprintf</a>, <a href="close.html">f_close</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_j.html">戻る</a></p>
|
||||
</body>
|
||||
</html>
|
||||
146
3rdparty/fatfs-0.10b/doc/updates.txt
vendored
146
3rdparty/fatfs-0.10b/doc/updates.txt
vendored
|
|
@ -1,146 +0,0 @@
|
|||
R0.10b, May 19, 2014
|
||||
Fixed a hard error in the disk I/O layer can collapse the directory entry.
|
||||
Fixed LFN entry is not deleted on delete/rename an object with its lossy converted SFN.
|
||||
|
||||
R0.10a, Jan 15, 2014
|
||||
Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID)
|
||||
Added an option for minimum sector size. (_MIN_SS)
|
||||
2nd argument of f_rename() can have a drive number and it will be ignored.
|
||||
Fixed f_mount() with forced mount fails when drive number is larger than 0.
|
||||
Fixed f_close() invalidates the file object without volume lock.
|
||||
Fixed volume lock is left acquired after return from f_closedir().
|
||||
Fixed creation of a directory entry with LFN fails on too many SFN collisions.
|
||||
|
||||
R0.10, Oct 02, 2013
|
||||
Added an option for character encoding on the file. (_STRF_ENCODE)
|
||||
Added f_closedir().
|
||||
Added forced full FAT scan option for f_getfree(). (_FS_NOFSINFO)
|
||||
Added forced mount feature with changes of f_mount().
|
||||
Improved behavior of volume auto detection.
|
||||
Improved write throughput of f_puts() and f_printf().
|
||||
Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
|
||||
Fixed f_write() can be truncated when the file size is close to 4GB.
|
||||
Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect result code on error.
|
||||
|
||||
R0.09b, Jan 24, 2013
|
||||
Added f_getlabel() and f_setlabel(). (_USE_LABEL = 1)
|
||||
|
||||
R0.09a, Aug 27, 2012
|
||||
Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
|
||||
Changed file functions reject null object pointer to avoid crash.
|
||||
Changed option name _FS_SHARE to _FS_LOCK.
|
||||
|
||||
R0.09, Sep 06, 2011
|
||||
f_mkfs() supports multiple partition to complete the multiple partition feature.
|
||||
Added f_fdisk(). (_MULTI_PARTITION = 2)
|
||||
|
||||
R0.08b, Jan 15, 2011
|
||||
Fast seek feature is also applied to f_read() and f_write().
|
||||
f_lseek() reports required table size on creating CLMP.
|
||||
Extended format syntax of f_printf().
|
||||
Ignores duplicated directory separators in given path names.
|
||||
|
||||
R0.08a, Aug 16, 2010
|
||||
Added f_getcwd(). (_FS_RPATH = 2)
|
||||
Added sector erase feature. (_USE_ERASE)
|
||||
Moved file lock semaphore table from fs object to the bss.
|
||||
Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
|
||||
Fixed f_mkfs() creates wrong FAT32 volume.
|
||||
|
||||
R0.08, May 15, 2010
|
||||
Added a memory configuration option. (_USE_LFN)
|
||||
Added file lock feature. (_FS_SHARE)
|
||||
Added fast seek feature. (_USE_FASTSEEK)
|
||||
Changed some types on the API, XCHAR->TCHAR.
|
||||
Changed fname member in the FILINFO structure on Unicode cfg.
|
||||
String functions support UTF-8 encoding files on Unicode cfg.
|
||||
|
||||
R0.07e, Nov 3, 2009
|
||||
Separated out configuration options from ff.h to ffconf.h.
|
||||
Added a configuration option, _LFN_UNICODE.
|
||||
Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
|
||||
Fixed name matching error on the 13 char boundary.
|
||||
Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
|
||||
|
||||
R0.07c, Jun 21, 2009
|
||||
Fixed f_unlink() may return FR_OK on error.
|
||||
Fixed wrong cache control in f_lseek().
|
||||
Added relative path feature.
|
||||
Added f_chdir().
|
||||
Added f_chdrive().
|
||||
Added proper case conversion to extended characters.
|
||||
|
||||
R0.07a, Apr 14, 2009
|
||||
Separated out OS dependent code on re-entrant configuration.
|
||||
Added multiple sector size support.
|
||||
|
||||
R0.07, Apr 01, 2009
|
||||
Merged Tiny-FatFs into FatFs as a buffer configuration option.
|
||||
Added long file name support.
|
||||
Added multiple code page support.
|
||||
Added re-entrancy for multitask operation.
|
||||
Added auto cluster size selection to f_mkfs().
|
||||
Added rewind option to f_readdir().
|
||||
Changed result code of critical errors.
|
||||
Renamed string functions to avoid name collision.
|
||||
|
||||
R0.06, Apr 01, 2008
|
||||
Added f_forward. (Tiny-FatFs)
|
||||
Added string functions: fgets, fputc, fputs and fprintf.
|
||||
Improved performance of f_lseek on moving to the same or following cluster.
|
||||
|
||||
R0.05a, Feb 03, 2008
|
||||
Added f_truncate.
|
||||
Added f_utime.
|
||||
Fixed off by one error at FAT sub-type determination.
|
||||
Fixed btr in f_read can be mistruncated.
|
||||
Fixed cached sector is left not flushed when create and close without write.
|
||||
|
||||
R0.05, Aug 26, 2007
|
||||
Changed arguments of f_read, f_write.
|
||||
Changed arguments of f_mkfs. (FatFs)
|
||||
Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs)
|
||||
Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs)
|
||||
|
||||
R0.04b, May 05, 2007
|
||||
Added _USE_NTFLAG option.
|
||||
Added FSInfo support.
|
||||
Fixed some problems corresponds to FAT32. (Tiny-FatFs)
|
||||
Fixed DBCS name can result FR_INVALID_NAME.
|
||||
Fixed short seek (<= csize) collapses the file object.
|
||||
|
||||
R0.04a, Apr 01, 2007
|
||||
Supported multiple partitions on a plysical drive. (FatFs)
|
||||
Added minimization level 3.
|
||||
Added a capability of extending file size to f_lseek.
|
||||
Fixed an endian sensitive code in f_mkfs. (FatFs)
|
||||
Fixed a problem corresponds to FAT32 support. (Tiny-FatFs)
|
||||
|
||||
R0.04, Feb 04, 2007
|
||||
Supported multiple drive system. (FatFs)
|
||||
Changed some APIs for multiple drive system.
|
||||
Added f_mkfs. (FatFs)
|
||||
Added _USE_FAT32 option. (Tiny-FatFs)
|
||||
|
||||
R0.03a, Dec 11, 2006
|
||||
Improved cluster scan algolithm to write files fast.
|
||||
Fixed f_mkdir creates incorrect directory on FAT32.
|
||||
|
||||
R0.03, Sep 22, 2006
|
||||
Added f_rename.
|
||||
Changed option _FS_MINIMUM to _FS_MINIMIZE.
|
||||
|
||||
R0.02a, Jun 10, 2006
|
||||
Added a configuration option _FS_MINIMUM.
|
||||
|
||||
R0.02, Jun 01, 2006
|
||||
Added FAT12.
|
||||
Removed unbuffered mode.
|
||||
Fixed a problem on small (<32M) patition.
|
||||
|
||||
R0.01, Apr 29, 2006
|
||||
First release
|
||||
|
||||
R0.00, Feb 26, 2006
|
||||
Prototype (not released)
|
||||
|
||||
158
3rdparty/fatfs-0.10b/src/00readme.txt
vendored
158
3rdparty/fatfs-0.10b/src/00readme.txt
vendored
|
|
@ -1,158 +0,0 @@
|
|||
FatFs Module Source Files R0.10b (C)ChaN, 2014
|
||||
|
||||
|
||||
FILES
|
||||
|
||||
ffconf.h Configuration file for FatFs module.
|
||||
ff.h Common include file for FatFs and application module.
|
||||
ff.c FatFs module.
|
||||
diskio.h Common include file for FatFs and disk I/O module.
|
||||
diskio.c An example of glue function to attach existing disk I/O module to FatFs.
|
||||
integer.h Integer type definitions for FatFs.
|
||||
option Optional external functions.
|
||||
|
||||
Low level disk I/O module is not included in this archive because the FatFs
|
||||
module is only a generic file system layer and not depend on any specific
|
||||
storage device. You have to provide a low level disk I/O module that written
|
||||
to control your storage device.
|
||||
|
||||
|
||||
|
||||
AGREEMENTS
|
||||
|
||||
FatFs module is an open source software to implement FAT file system to
|
||||
small embedded systems. This is a free software and is opened for education,
|
||||
research and commercial developments under license policy of following trems.
|
||||
|
||||
Copyright (C) 2014, ChaN, all right reserved.
|
||||
|
||||
* The FatFs module is a free software and there is NO WARRANTY.
|
||||
* No restriction on use. You can use, modify and redistribute it for
|
||||
personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
|
||||
* Redistributions of source code must retain the above copyright notice.
|
||||
|
||||
|
||||
|
||||
REVISION HISTORY
|
||||
|
||||
Feb 26, 2006 R0.00 Prototype
|
||||
|
||||
Apr 29, 2006 R0.01 First release.
|
||||
|
||||
Jun 01, 2006 R0.02 Added FAT12.
|
||||
Removed unbuffered mode.
|
||||
Fixed a problem on small (<32M) patition.
|
||||
|
||||
Jun 10, 2006 R0.02a Added a configuration option _FS_MINIMUM.
|
||||
|
||||
Sep 22, 2006 R0.03 Added f_rename.
|
||||
Changed option _FS_MINIMUM to _FS_MINIMIZE.
|
||||
|
||||
Dec 11, 2006 R0.03a Improved cluster scan algolithm to write files fast.
|
||||
Fixed f_mkdir creates incorrect directory on FAT32.
|
||||
|
||||
Feb 04, 2007 R0.04 Supported multiple drive system. (FatFs)
|
||||
Changed some APIs for multiple drive system.
|
||||
Added f_mkfs. (FatFs)
|
||||
Added _USE_FAT32 option. (Tiny-FatFs)
|
||||
|
||||
Apr 01, 2007 R0.04a Supported multiple partitions on a plysical drive. (FatFs)
|
||||
Fixed an endian sensitive code in f_mkfs. (FatFs)
|
||||
Added a capability of extending the file size to f_lseek.
|
||||
Added minimization level 3.
|
||||
Fixed a problem that can collapse a sector when recreate an
|
||||
existing file in any sub-directory at non FAT32 cfg. (Tiny-FatFs)
|
||||
|
||||
May 05, 2007 R0.04b Added _USE_NTFLAG option.
|
||||
Added FSInfo support.
|
||||
Fixed some problems corresponds to FAT32. (Tiny-FatFs)
|
||||
Fixed DBCS name can result FR_INVALID_NAME.
|
||||
Fixed short seek (0 < ofs <= csize) collapses the file object.
|
||||
|
||||
Aug 25, 2007 R0.05 Changed arguments of f_read, f_write.
|
||||
Changed arguments of f_mkfs. (FatFs)
|
||||
Fixed f_mkfs on FAT32 creates incorrect FSInfo. (FatFs)
|
||||
Fixed f_mkdir on FAT32 creates incorrect directory. (FatFs)
|
||||
|
||||
Feb 03, 2008 R0.05a Added f_truncate().
|
||||
Added f_utime().
|
||||
Fixed off by one error at FAT sub-type determination.
|
||||
Fixed btr in f_read() can be mistruncated.
|
||||
Fixed cached sector is not flushed when create and close without write.
|
||||
|
||||
Apr 01, 2008 R0.06 Added f_forward(). (Tiny-FatFs)
|
||||
Added string functions: fputc(), fputs(), fprintf() and fgets().
|
||||
Improved performance of f_lseek() on move to the same or following cluster.
|
||||
|
||||
Apr 01, 2009, R0.07 Merged Tiny-FatFs as a buffer configuration option.
|
||||
Added long file name support.
|
||||
Added multiple code page support.
|
||||
Added re-entrancy for multitask operation.
|
||||
Added auto cluster size selection to f_mkfs().
|
||||
Added rewind option to f_readdir().
|
||||
Changed result code of critical errors.
|
||||
Renamed string functions to avoid name collision.
|
||||
|
||||
Apr 14, 2009, R0.07a Separated out OS dependent code on reentrant cfg.
|
||||
Added multiple sector size support.
|
||||
|
||||
Jun 21, 2009, R0.07c Fixed f_unlink() may return FR_OK on error.
|
||||
Fixed wrong cache control in f_lseek().
|
||||
Added relative path feature.
|
||||
Added f_chdir().
|
||||
Added f_chdrive().
|
||||
Added proper case conversion for extended characters.
|
||||
|
||||
Nov 03, 2009 R0.07e Separated out configuration options from ff.h to ffconf.h.
|
||||
Added a configuration option, _LFN_UNICODE.
|
||||
Fixed f_unlink() fails to remove a sub-dir on _FS_RPATH.
|
||||
Fixed name matching error on the 13 char boundary.
|
||||
Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
|
||||
|
||||
May 15, 2010, R0.08 Added a memory configuration option. (_USE_LFN)
|
||||
Added file lock feature. (_FS_SHARE)
|
||||
Added fast seek feature. (_USE_FASTSEEK)
|
||||
Changed some types on the API, XCHAR->TCHAR.
|
||||
Changed fname member in the FILINFO structure on Unicode cfg.
|
||||
String functions support UTF-8 encoding files on Unicode cfg.
|
||||
|
||||
Aug 16,'10 R0.08a Added f_getcwd(). (_FS_RPATH = 2)
|
||||
Added sector erase feature. (_USE_ERASE)
|
||||
Moved file lock semaphore table from fs object to the bss.
|
||||
Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
|
||||
Fixed f_mkfs() creates wrong FAT32 volume.
|
||||
|
||||
Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
|
||||
f_lseek() reports required table size on creating CLMP.
|
||||
Extended format syntax of f_printf function.
|
||||
Ignores duplicated directory separators in given path names.
|
||||
|
||||
Sep 06,'11 R0.09 f_mkfs() supports multiple partition to finish the multiple partition feature.
|
||||
Added f_fdisk(). (_MULTI_PARTITION = 2)
|
||||
|
||||
Aug 27,'12 R0.09a Fixed assertion failure due to OS/2 EA on FAT12/16.
|
||||
Changed f_open() and f_opendir() reject null object pointer to avoid crash.
|
||||
Changed option name _FS_SHARE to _FS_LOCK.
|
||||
|
||||
Jan 23,'13 R0.09b Added f_getlabel() and f_setlabel(). (_USE_LABEL)
|
||||
|
||||
Oct 02,'13 R0.10 Added selection of character encoding on the file. (_STRF_ENCODE)
|
||||
Added f_closedir().
|
||||
Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO)
|
||||
Added forced mount feature with changes of f_mount().
|
||||
Improved behavior of volume auto detection.
|
||||
Improved write throughput of f_puts() and f_printf().
|
||||
Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
|
||||
Fixed f_write() can be truncated when the file size is close to 4GB.
|
||||
Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect error code.
|
||||
|
||||
Jan 15,'14 R0.10a Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID)
|
||||
Added a configuration option of minimum sector size. (_MIN_SS)
|
||||
2nd argument of f_rename() can have a drive number and it will be ignored.
|
||||
Fixed f_mount() with forced mount fails when drive number is >= 1.
|
||||
Fixed f_close() invalidates the file object without volume lock.
|
||||
Fixed f_closedir() returns but the volume lock is left acquired.
|
||||
Fixed creation of an entry with LFN fails on too many SFN collisions.
|
||||
|
||||
Mar 19,'14 R0.10b Fixed a hard error in the disk I/O layer can collapse the directory entry.
|
||||
Fixed LFN entry is not deleted on delete/rename an object with lossy converted SFN.
|
||||
4588
3rdparty/fatfs-0.10b/src/ff.c
vendored
4588
3rdparty/fatfs-0.10b/src/ff.c
vendored
File diff suppressed because it is too large
Load diff
342
3rdparty/fatfs-0.10b/src/ff.h
vendored
342
3rdparty/fatfs-0.10b/src/ff.h
vendored
|
|
@ -1,342 +0,0 @@
|
|||
/*---------------------------------------------------------------------------/
|
||||
/ FatFs - FAT file system module include file R0.10b (C)ChaN, 2014
|
||||
/----------------------------------------------------------------------------/
|
||||
/ FatFs module is a generic FAT file system module for small embedded systems.
|
||||
/ This is a free software that opened for education, research and commercial
|
||||
/ developments under license policy of following terms.
|
||||
/
|
||||
/ Copyright (C) 2014, ChaN, all right reserved.
|
||||
/
|
||||
/ * The FatFs module is a free software and there is NO WARRANTY.
|
||||
/ * No restriction on use. You can use, modify and redistribute it for
|
||||
/ personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
|
||||
/ * Redistributions of source code must retain the above copyright notice.
|
||||
/
|
||||
/----------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef _FATFS
|
||||
#define _FATFS 8051 /* Revision ID */
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include "integer.h" /* Basic integer types */
|
||||
#include "ffconf.h" /* FatFs configuration options */
|
||||
|
||||
#if _FATFS != _FFCONF
|
||||
#error Wrong configuration file (ffconf.h).
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* Definitions of volume management */
|
||||
|
||||
#if _MULTI_PARTITION /* Multiple partition configuration */
|
||||
typedef struct {
|
||||
BYTE pd; /* Physical drive number */
|
||||
BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
|
||||
} PARTITION;
|
||||
extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
|
||||
#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
|
||||
#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
|
||||
|
||||
#else /* Single partition configuration */
|
||||
#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
|
||||
#define LD2PT(vol) 0 /* Find first valid partition or in SFD */
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* Type of path name strings on FatFs API */
|
||||
|
||||
#if _LFN_UNICODE /* Unicode string */
|
||||
#if !_USE_LFN
|
||||
#error _LFN_UNICODE must be 0 at non-LFN cfg.
|
||||
#endif
|
||||
#ifndef _INC_TCHAR
|
||||
typedef WCHAR TCHAR;
|
||||
#define _T(x) L ## x
|
||||
#define _TEXT(x) L ## x
|
||||
#endif
|
||||
|
||||
#else /* ANSI/OEM string */
|
||||
#ifndef _INC_TCHAR
|
||||
typedef char TCHAR;
|
||||
#define _T(x) x
|
||||
#define _TEXT(x) x
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* File system object structure (FATFS) */
|
||||
|
||||
typedef struct {
|
||||
BYTE fs_type; /* FAT sub-type (0:Not mounted) */
|
||||
BYTE drv; /* Physical drive number */
|
||||
BYTE csize; /* Sectors per cluster (1,2,4...128) */
|
||||
BYTE n_fats; /* Number of FAT copies (1 or 2) */
|
||||
BYTE wflag; /* win[] flag (b0:dirty) */
|
||||
BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
|
||||
WORD id; /* File system mount ID */
|
||||
WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
|
||||
#if _MAX_SS != _MIN_SS
|
||||
WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
|
||||
#endif
|
||||
#if _FS_REENTRANT
|
||||
_SYNC_t sobj; /* Identifier of sync object */
|
||||
#endif
|
||||
#if !_FS_READONLY
|
||||
DWORD last_clust; /* Last allocated cluster */
|
||||
DWORD free_clust; /* Number of free clusters */
|
||||
#endif
|
||||
#if _FS_RPATH
|
||||
DWORD cdir; /* Current directory start cluster (0:root) */
|
||||
#endif
|
||||
DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
|
||||
DWORD fsize; /* Sectors per FAT */
|
||||
DWORD volbase; /* Volume start sector */
|
||||
DWORD fatbase; /* FAT start sector */
|
||||
DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
|
||||
DWORD database; /* Data start sector */
|
||||
DWORD winsect; /* Current sector appearing in the win[] */
|
||||
BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
|
||||
} FATFS;
|
||||
|
||||
|
||||
|
||||
/* File object structure (FIL) */
|
||||
|
||||
typedef struct {
|
||||
FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
|
||||
WORD id; /* Owner file system mount ID (**do not change order**) */
|
||||
BYTE flag; /* Status flags */
|
||||
BYTE err; /* Abort flag (error code) */
|
||||
DWORD fptr; /* File read/write pointer (Zeroed on file open) */
|
||||
DWORD fsize; /* File size */
|
||||
DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
|
||||
DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
|
||||
DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
|
||||
#if !_FS_READONLY
|
||||
DWORD dir_sect; /* Sector number containing the directory entry */
|
||||
BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
|
||||
#endif
|
||||
#if _USE_FASTSEEK
|
||||
DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
|
||||
#endif
|
||||
#if _FS_LOCK
|
||||
UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
|
||||
#endif
|
||||
#if !_FS_TINY
|
||||
BYTE buf[_MAX_SS]; /* File private data read/write window */
|
||||
#endif
|
||||
} FIL;
|
||||
|
||||
|
||||
|
||||
/* Directory object structure (DIR) */
|
||||
|
||||
typedef struct {
|
||||
FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
|
||||
WORD id; /* Owner file system mount ID (**do not change order**) */
|
||||
WORD index; /* Current read/write index number */
|
||||
DWORD sclust; /* Table start cluster (0:Root dir) */
|
||||
DWORD clust; /* Current cluster */
|
||||
DWORD sect; /* Current sector */
|
||||
BYTE* dir; /* Pointer to the current SFN entry in the win[] */
|
||||
BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
|
||||
#if _FS_LOCK
|
||||
UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
|
||||
#endif
|
||||
#if _USE_LFN
|
||||
WCHAR* lfn; /* Pointer to the LFN working buffer */
|
||||
WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
|
||||
#endif
|
||||
} DIR;
|
||||
|
||||
|
||||
|
||||
/* File status structure (FILINFO) */
|
||||
|
||||
typedef struct {
|
||||
DWORD fsize; /* File size */
|
||||
WORD fdate; /* Last modified date */
|
||||
WORD ftime; /* Last modified time */
|
||||
BYTE fattrib; /* Attribute */
|
||||
TCHAR fname[13]; /* Short file name (8.3 format) */
|
||||
#if _USE_LFN
|
||||
TCHAR* lfname; /* Pointer to the LFN buffer */
|
||||
UINT lfsize; /* Size of LFN buffer in TCHAR */
|
||||
#endif
|
||||
} FILINFO;
|
||||
|
||||
|
||||
|
||||
/* File function return code (FRESULT) */
|
||||
|
||||
typedef enum {
|
||||
FR_OK = 0, /* (0) Succeeded */
|
||||
FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
|
||||
FR_INT_ERR, /* (2) Assertion failed */
|
||||
FR_NOT_READY, /* (3) The physical drive cannot work */
|
||||
FR_NO_FILE, /* (4) Could not find the file */
|
||||
FR_NO_PATH, /* (5) Could not find the path */
|
||||
FR_INVALID_NAME, /* (6) The path name format is invalid */
|
||||
FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
|
||||
FR_EXIST, /* (8) Access denied due to prohibited access */
|
||||
FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
|
||||
FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
|
||||
FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
|
||||
FR_NOT_ENABLED, /* (12) The volume has no work area */
|
||||
FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
|
||||
FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
|
||||
FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
|
||||
FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
|
||||
FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
|
||||
FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
|
||||
FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
|
||||
} FRESULT;
|
||||
|
||||
|
||||
|
||||
/*--------------------------------------------------------------*/
|
||||
/* FatFs module application interface */
|
||||
|
||||
FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
|
||||
FRESULT f_close (FIL* fp); /* Close an open file object */
|
||||
FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
|
||||
FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
|
||||
FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
|
||||
FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
|
||||
FRESULT f_truncate (FIL* fp); /* Truncate file */
|
||||
FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
|
||||
FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
|
||||
FRESULT f_closedir (DIR* dp); /* Close an open directory */
|
||||
FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
|
||||
FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
|
||||
FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
|
||||
FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
|
||||
FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
|
||||
FRESULT f_chmod (const TCHAR* path, BYTE value, BYTE mask); /* Change attribute of the file/dir */
|
||||
FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
|
||||
FRESULT f_chdir (const TCHAR* path); /* Change current directory */
|
||||
FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
|
||||
FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
|
||||
FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
|
||||
FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
|
||||
FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
|
||||
FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
|
||||
FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
|
||||
FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
|
||||
int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
|
||||
int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
|
||||
int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
|
||||
TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
|
||||
|
||||
#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
|
||||
#define f_error(fp) ((fp)->err)
|
||||
#define f_tell(fp) ((fp)->fptr)
|
||||
#define f_size(fp) ((fp)->fsize)
|
||||
|
||||
#ifndef EOF
|
||||
#define EOF (-1)
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
||||
/*--------------------------------------------------------------*/
|
||||
/* Additional user defined functions */
|
||||
|
||||
/* RTC function */
|
||||
#if !_FS_READONLY
|
||||
DWORD get_fattime (void);
|
||||
#endif
|
||||
|
||||
/* Unicode support functions */
|
||||
#if _USE_LFN /* Unicode - OEM code conversion */
|
||||
WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
|
||||
WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
|
||||
#if _USE_LFN == 3 /* Memory functions */
|
||||
void* ff_memalloc (UINT msize); /* Allocate memory block */
|
||||
void ff_memfree (void* mblock); /* Free memory block */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* Sync functions */
|
||||
#if _FS_REENTRANT
|
||||
int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
|
||||
int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
|
||||
void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
|
||||
int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
||||
/*--------------------------------------------------------------*/
|
||||
/* Flags and offset address */
|
||||
|
||||
|
||||
/* File access control and file status flags (FIL.flag) */
|
||||
|
||||
#define FA_READ 0x01
|
||||
#define FA_OPEN_EXISTING 0x00
|
||||
|
||||
#if !_FS_READONLY
|
||||
#define FA_WRITE 0x02
|
||||
#define FA_CREATE_NEW 0x04
|
||||
#define FA_CREATE_ALWAYS 0x08
|
||||
#define FA_OPEN_ALWAYS 0x10
|
||||
#define FA__WRITTEN 0x20
|
||||
#define FA__DIRTY 0x40
|
||||
#endif
|
||||
|
||||
|
||||
/* FAT sub type (FATFS.fs_type) */
|
||||
|
||||
#define FS_FAT12 1
|
||||
#define FS_FAT16 2
|
||||
#define FS_FAT32 3
|
||||
|
||||
|
||||
/* File attribute bits for directory entry */
|
||||
|
||||
#define AM_RDO 0x01 /* Read only */
|
||||
#define AM_HID 0x02 /* Hidden */
|
||||
#define AM_SYS 0x04 /* System */
|
||||
#define AM_VOL 0x08 /* Volume label */
|
||||
#define AM_LFN 0x0F /* LFN entry */
|
||||
#define AM_DIR 0x10 /* Directory */
|
||||
#define AM_ARC 0x20 /* Archive */
|
||||
#define AM_MASK 0x3F /* Mask of defined bits */
|
||||
|
||||
|
||||
/* Fast seek feature */
|
||||
#define CREATE_LINKMAP 0xFFFFFFFF
|
||||
|
||||
|
||||
|
||||
/*--------------------------------*/
|
||||
/* Multi-byte word access macros */
|
||||
|
||||
#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
|
||||
#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
|
||||
#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
|
||||
#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
|
||||
#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
|
||||
#else /* Use byte-by-byte access to the FAT structure */
|
||||
#define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
|
||||
#define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
|
||||
#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
|
||||
#define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _FATFS */
|
||||
228
3rdparty/fatfs-0.10b/src/ffconf.h
vendored
228
3rdparty/fatfs-0.10b/src/ffconf.h
vendored
|
|
@ -1,228 +0,0 @@
|
|||
/*---------------------------------------------------------------------------/
|
||||
/ FatFs - FAT file system module configuration file R0.10b (C)ChaN, 2014
|
||||
/---------------------------------------------------------------------------*/
|
||||
|
||||
#ifndef _FFCONF
|
||||
#define _FFCONF 8051 /* Revision ID */
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------/
|
||||
/ Functions and Buffer Configurations
|
||||
/---------------------------------------------------------------------------*/
|
||||
|
||||
#define _FS_TINY 0 /* 0:Normal or 1:Tiny */
|
||||
/* When _FS_TINY is set to 1, it reduces memory consumption _MAX_SS bytes each
|
||||
/ file object. For file data transfer, FatFs uses the common sector buffer in
|
||||
/ the file system object (FATFS) instead of private sector buffer eliminated
|
||||
/ from the file object (FIL). */
|
||||
|
||||
|
||||
#define _FS_READONLY 0 /* 0:Read/Write or 1:Read only */
|
||||
/* Setting _FS_READONLY to 1 defines read only configuration. This removes
|
||||
/ writing functions, f_write(), f_sync(), f_unlink(), f_mkdir(), f_chmod(),
|
||||
/ f_rename(), f_truncate() and useless f_getfree(). */
|
||||
|
||||
|
||||
#define _FS_MINIMIZE 0 /* 0 to 3 */
|
||||
/* The _FS_MINIMIZE option defines minimization level to remove API functions.
|
||||
/
|
||||
/ 0: All basic functions are enabled.
|
||||
/ 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(),
|
||||
/ f_truncate() and f_rename() function are removed.
|
||||
/ 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1.
|
||||
/ 3: f_lseek() function is removed in addition to 2. */
|
||||
|
||||
|
||||
#define _USE_STRFUNC 0 /* 0:Disable or 1-2:Enable */
|
||||
/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
|
||||
|
||||
|
||||
#define _USE_MKFS 0 /* 0:Disable or 1:Enable */
|
||||
/* To enable f_mkfs() function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
|
||||
|
||||
|
||||
#define _USE_FASTSEEK 0 /* 0:Disable or 1:Enable */
|
||||
/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
|
||||
|
||||
|
||||
#define _USE_LABEL 0 /* 0:Disable or 1:Enable */
|
||||
/* To enable volume label functions, set _USE_LAVEL to 1 */
|
||||
|
||||
|
||||
#define _USE_FORWARD 0 /* 0:Disable or 1:Enable */
|
||||
/* To enable f_forward() function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------/
|
||||
/ Locale and Namespace Configurations
|
||||
/---------------------------------------------------------------------------*/
|
||||
|
||||
#define _CODE_PAGE 932
|
||||
/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
|
||||
/ Incorrect setting of the code page can cause a file open failure.
|
||||
/
|
||||
/ 932 - Japanese Shift_JIS (DBCS, OEM, Windows)
|
||||
/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows)
|
||||
/ 949 - Korean (DBCS, OEM, Windows)
|
||||
/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows)
|
||||
/ 1250 - Central Europe (Windows)
|
||||
/ 1251 - Cyrillic (Windows)
|
||||
/ 1252 - Latin 1 (Windows)
|
||||
/ 1253 - Greek (Windows)
|
||||
/ 1254 - Turkish (Windows)
|
||||
/ 1255 - Hebrew (Windows)
|
||||
/ 1256 - Arabic (Windows)
|
||||
/ 1257 - Baltic (Windows)
|
||||
/ 1258 - Vietnam (OEM, Windows)
|
||||
/ 437 - U.S. (OEM)
|
||||
/ 720 - Arabic (OEM)
|
||||
/ 737 - Greek (OEM)
|
||||
/ 775 - Baltic (OEM)
|
||||
/ 850 - Multilingual Latin 1 (OEM)
|
||||
/ 858 - Multilingual Latin 1 + Euro (OEM)
|
||||
/ 852 - Latin 2 (OEM)
|
||||
/ 855 - Cyrillic (OEM)
|
||||
/ 866 - Russian (OEM)
|
||||
/ 857 - Turkish (OEM)
|
||||
/ 862 - Hebrew (OEM)
|
||||
/ 874 - Thai (OEM, Windows)
|
||||
/ 1 - ASCII (Valid for only non-LFN configuration) */
|
||||
|
||||
|
||||
#define _USE_LFN 0 /* 0 to 3 */
|
||||
#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */
|
||||
/* The _USE_LFN option switches the LFN feature.
|
||||
/
|
||||
/ 0: Disable LFN feature. _MAX_LFN has no effect.
|
||||
/ 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
|
||||
/ 2: Enable LFN with dynamic working buffer on the STACK.
|
||||
/ 3: Enable LFN with dynamic working buffer on the HEAP.
|
||||
/
|
||||
/ When enable LFN feature, Unicode handling functions ff_convert() and ff_wtoupper()
|
||||
/ function must be added to the project.
|
||||
/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. When use stack for the
|
||||
/ working buffer, take care on stack overflow. When use heap memory for the working
|
||||
/ buffer, memory management functions, ff_memalloc() and ff_memfree(), must be added
|
||||
/ to the project. */
|
||||
|
||||
|
||||
#define _LFN_UNICODE 0 /* 0:ANSI/OEM or 1:Unicode */
|
||||
/* To switch the character encoding on the FatFs API (TCHAR) to Unicode, enable LFN
|
||||
/ feature and set _LFN_UNICODE to 1. This option affects behavior of string I/O
|
||||
/ functions. This option must be 0 when LFN feature is not enabled. */
|
||||
|
||||
|
||||
#define _STRF_ENCODE 3 /* 0:ANSI/OEM, 1:UTF-16LE, 2:UTF-16BE, 3:UTF-8 */
|
||||
/* When Unicode API is enabled by _LFN_UNICODE option, this option selects the character
|
||||
/ encoding on the file to be read/written via string I/O functions, f_gets(), f_putc(),
|
||||
/ f_puts and f_printf(). This option has no effect when _LFN_UNICODE == 0. Note that
|
||||
/ FatFs supports only BMP. */
|
||||
|
||||
|
||||
#define _FS_RPATH 0 /* 0 to 2 */
|
||||
/* The _FS_RPATH option configures relative path feature.
|
||||
/
|
||||
/ 0: Disable relative path feature and remove related functions.
|
||||
/ 1: Enable relative path. f_chdrive() and f_chdir() function are available.
|
||||
/ 2: f_getcwd() function is available in addition to 1.
|
||||
/
|
||||
/ Note that output of the f_readdir() fnction is affected by this option. */
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------/
|
||||
/ Drive/Volume Configurations
|
||||
/---------------------------------------------------------------------------*/
|
||||
|
||||
#define _VOLUMES 1
|
||||
/* Number of volumes (logical drives) to be used. */
|
||||
|
||||
|
||||
#define _STR_VOLUME_ID 0 /* 0:Use only 0-9 for drive ID, 1:Use strings for drive ID */
|
||||
#define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
|
||||
/* When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive
|
||||
/ number in the path name. _VOLUME_STRS defines the drive ID strings for each logical
|
||||
/ drives. Number of items must be equal to _VOLUMES. Valid characters for the drive ID
|
||||
/ strings are: 0-9 and A-Z. */
|
||||
|
||||
|
||||
#define _MULTI_PARTITION 0 /* 0:Single partition, 1:Enable multiple partition */
|
||||
/* By default(0), each logical drive number is bound to the same physical drive number
|
||||
/ and only a FAT volume found on the physical drive is mounted. When it is set to 1,
|
||||
/ each logical drive number is bound to arbitrary drive/partition listed in VolToPart[].
|
||||
*/
|
||||
|
||||
|
||||
#define _MIN_SS 512
|
||||
#define _MAX_SS 512
|
||||
/* These options configure the range of sector size to be supported. (512, 1024, 2048 or
|
||||
/ 4096) Always set both 512 for most systems, all memory card and harddisk. But a larger
|
||||
/ value may be required for on-board flash memory and some type of optical media.
|
||||
/ When _MAX_SS is larger than _MIN_SS, FatFs is configured to variable sector size and
|
||||
/ GET_SECTOR_SIZE command must be implemented to the disk_ioctl() function. */
|
||||
|
||||
|
||||
#define _USE_ERASE 0 /* 0:Disable or 1:Enable */
|
||||
/* To enable sector erase feature, set _USE_ERASE to 1. Also CTRL_ERASE_SECTOR command
|
||||
/ should be added to the disk_ioctl() function. */
|
||||
|
||||
|
||||
#define _FS_NOFSINFO 0 /* 0 to 3 */
|
||||
/* If you need to know correct free space on the FAT32 volume, set bit 0 of this option
|
||||
/ and f_getfree() function at first time after volume mount will force a full FAT scan.
|
||||
/ Bit 1 controls the last allocated cluster number as bit 0.
|
||||
/
|
||||
/ bit0=0: Use free cluster count in the FSINFO if available.
|
||||
/ bit0=1: Do not trust free cluster count in the FSINFO.
|
||||
/ bit1=0: Use last allocated cluster number in the FSINFO if available.
|
||||
/ bit1=1: Do not trust last allocated cluster number in the FSINFO.
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------/
|
||||
/ System Configurations
|
||||
/---------------------------------------------------------------------------*/
|
||||
|
||||
#define _FS_LOCK 0 /* 0:Disable or >=1:Enable */
|
||||
/* To enable file lock control feature, set _FS_LOCK to non-zero value.
|
||||
/ The value defines how many files/sub-directories can be opened simultaneously
|
||||
/ with file lock control. This feature uses bss _FS_LOCK * 12 bytes. */
|
||||
|
||||
|
||||
#define _FS_REENTRANT 0 /* 0:Disable or 1:Enable */
|
||||
#define _FS_TIMEOUT 1000 /* Timeout period in unit of time tick */
|
||||
#define _SYNC_t HANDLE /* O/S dependent sync object type. e.g. HANDLE, OS_EVENT*, ID, SemaphoreHandle_t and etc.. */
|
||||
/* The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs module.
|
||||
/
|
||||
/ 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect.
|
||||
/ 1: Enable re-entrancy. Also user provided synchronization handlers,
|
||||
/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj()
|
||||
/ function must be added to the project.
|
||||
*/
|
||||
|
||||
|
||||
#define _WORD_ACCESS 0 /* 0 or 1 */
|
||||
/* The _WORD_ACCESS option is an only platform dependent option. It defines
|
||||
/ which access method is used to the word data on the FAT volume.
|
||||
/
|
||||
/ 0: Byte-by-byte access. Always compatible with all platforms.
|
||||
/ 1: Word access. Do not choose this unless under both the following conditions.
|
||||
/
|
||||
/ * Address misaligned memory access is always allowed for ALL instructions.
|
||||
/ * Byte order on the memory is little-endian.
|
||||
/
|
||||
/ If it is the case, _WORD_ACCESS can also be set to 1 to improve performance and
|
||||
/ reduce code size. Following table shows an example of some processor types.
|
||||
/
|
||||
/ ARM7TDMI 0 ColdFire 0 V850E 0
|
||||
/ Cortex-M3 0 Z80 0/1 V850ES 0/1
|
||||
/ Cortex-M0 0 RX600(LE) 0/1 TLCS-870 0/1
|
||||
/ AVR 0/1 RX600(BE) 0 TLCS-900 0/1
|
||||
/ AVR32 0 RL78 0 R32C 0
|
||||
/ PIC18 0/1 SH-2 0 M16C 0/1
|
||||
/ PIC24 0 H8S 0 MSP430 0
|
||||
/ PIC32 0 H8/300H 0 x86 0/1
|
||||
*/
|
||||
|
||||
|
||||
#endif /* _FFCONF */
|
||||
3798
3rdparty/fatfs-0.10b/src/option/cc932.c
vendored
3798
3rdparty/fatfs-0.10b/src/option/cc932.c
vendored
File diff suppressed because it is too large
Load diff
10973
3rdparty/fatfs-0.10b/src/option/cc936.c
vendored
10973
3rdparty/fatfs-0.10b/src/option/cc936.c
vendored
File diff suppressed because it is too large
Load diff
8603
3rdparty/fatfs-0.10b/src/option/cc949.c
vendored
8603
3rdparty/fatfs-0.10b/src/option/cc949.c
vendored
File diff suppressed because it is too large
Load diff
6829
3rdparty/fatfs-0.10b/src/option/cc950.c
vendored
6829
3rdparty/fatfs-0.10b/src/option/cc950.c
vendored
File diff suppressed because it is too large
Load diff
540
3rdparty/fatfs-0.10b/src/option/ccsbcs.c
vendored
540
3rdparty/fatfs-0.10b/src/option/ccsbcs.c
vendored
|
|
@ -1,540 +0,0 @@
|
|||
/*------------------------------------------------------------------------*/
|
||||
/* Unicode - Local code bidirectional converter (C)ChaN, 2012 */
|
||||
/* (SBCS code pages) */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* 437 U.S. (OEM)
|
||||
/ 720 Arabic (OEM)
|
||||
/ 1256 Arabic (Windows)
|
||||
/ 737 Greek (OEM)
|
||||
/ 1253 Greek (Windows)
|
||||
/ 1250 Central Europe (Windows)
|
||||
/ 775 Baltic (OEM)
|
||||
/ 1257 Baltic (Windows)
|
||||
/ 850 Multilingual Latin 1 (OEM)
|
||||
/ 852 Latin 2 (OEM)
|
||||
/ 1252 Latin 1 (Windows)
|
||||
/ 855 Cyrillic (OEM)
|
||||
/ 1251 Cyrillic (Windows)
|
||||
/ 866 Russian (OEM)
|
||||
/ 857 Turkish (OEM)
|
||||
/ 1254 Turkish (Windows)
|
||||
/ 858 Multilingual Latin 1 + Euro (OEM)
|
||||
/ 862 Hebrew (OEM)
|
||||
/ 1255 Hebrew (Windows)
|
||||
/ 874 Thai (OEM, Windows)
|
||||
/ 1258 Vietnam (OEM, Windows)
|
||||
*/
|
||||
|
||||
#include "../ff.h"
|
||||
|
||||
|
||||
#if _CODE_PAGE == 437
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP437(0x80-0xFF) to Unicode conversion table */
|
||||
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
|
||||
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
|
||||
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
|
||||
0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
|
||||
0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
||||
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
|
||||
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
|
||||
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
|
||||
0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
|
||||
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
|
||||
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 720
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP720(0x80-0xFF) to Unicode conversion table */
|
||||
0x0000, 0x0000, 0x00E9, 0x00E2, 0x0000, 0x00E0, 0x0000, 0x00E7,
|
||||
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x0651, 0x0652, 0x00F4, 0x00A4, 0x0640, 0x00FB, 0x00F9,
|
||||
0x0621, 0x0622, 0x0623, 0x0624, 0x00A3, 0x0625, 0x0626, 0x0627,
|
||||
0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F,
|
||||
0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
||||
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
|
||||
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
|
||||
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x0636, 0x0637, 0x0638, 0x0639, 0x063A, 0x0641, 0x00B5, 0x0642,
|
||||
0x0643, 0x0644, 0x0645, 0x0646, 0x0647, 0x0648, 0x0649, 0x064A,
|
||||
0x2261, 0x064B, 0x064C, 0x064D, 0x064E, 0x064F, 0x0650, 0x2248,
|
||||
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 737
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP737(0x80-0xFF) to Unicode conversion table */
|
||||
0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398,
|
||||
0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0,
|
||||
0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9,
|
||||
0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
|
||||
0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0,
|
||||
0x03C1, 0x03C3, 0x03C2, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
||||
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
|
||||
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
|
||||
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x03C9, 0x03AC, 0x03AD, 0x03AE, 0x03CA, 0x03AF, 0x03CC, 0x03CD,
|
||||
0x03CB, 0x03CE, 0x0386, 0x0388, 0x0389, 0x038A, 0x038C, 0x038E,
|
||||
0x038F, 0x00B1, 0x2265, 0x2264, 0x03AA, 0x03AB, 0x00F7, 0x2248,
|
||||
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 775
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP775(0x80-0xFF) to Unicode conversion table */
|
||||
0x0106, 0x00FC, 0x00E9, 0x0101, 0x00E4, 0x0123, 0x00E5, 0x0107,
|
||||
0x0142, 0x0113, 0x0156, 0x0157, 0x012B, 0x0179, 0x00C4, 0x00C5,
|
||||
0x00C9, 0x00E6, 0x00C6, 0x014D, 0x00F6, 0x0122, 0x00A2, 0x015A,
|
||||
0x015B, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x00A4,
|
||||
0x0100, 0x012A, 0x00F3, 0x017B, 0x017C, 0x017A, 0x201D, 0x00A6,
|
||||
0x00A9, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x0141, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0104, 0x010C, 0x0118,
|
||||
0x0116, 0x2563, 0x2551, 0x2557, 0x255D, 0x012E, 0x0160, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0172, 0x016A,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x017D,
|
||||
0x0105, 0x010D, 0x0119, 0x0117, 0x012F, 0x0161, 0x0173, 0x016B,
|
||||
0x017E, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x00D3, 0x00DF, 0x014C, 0x0143, 0x00F5, 0x00D5, 0x00B5, 0x0144,
|
||||
0x0136, 0x0137, 0x013B, 0x013C, 0x0146, 0x0112, 0x0145, 0x2019,
|
||||
0x00AD, 0x00B1, 0x201C, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x201E,
|
||||
0x00B0, 0x2219, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 850
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP850(0x80-0xFF) to Unicode conversion table */
|
||||
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
|
||||
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
|
||||
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
|
||||
0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
|
||||
0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
|
||||
0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
|
||||
0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x0131, 0x00CD, 0x00CE,
|
||||
0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
|
||||
0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE,
|
||||
0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4,
|
||||
0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
|
||||
0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 852
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP852(0x80-0xFF) to Unicode conversion table */
|
||||
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x016F, 0x0107, 0x00E7,
|
||||
0x0142, 0x00EB, 0x0150, 0x0151, 0x00EE, 0x0179, 0x00C4, 0x0106,
|
||||
0x00C9, 0x0139, 0x013A, 0x00F4, 0x00F6, 0x013D, 0x013E, 0x015A,
|
||||
0x015B, 0x00D6, 0x00DC, 0x0164, 0x0165, 0x0141, 0x00D7, 0x010D,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x0104, 0x0105, 0x017D, 0x017E,
|
||||
0x0118, 0x0119, 0x00AC, 0x017A, 0x010C, 0x015F, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x011A,
|
||||
0x015E, 0x2563, 0x2551, 0x2557, 0x255D, 0x017B, 0x017C, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x0102, 0x0103,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
|
||||
0x0111, 0x0110, 0x010E, 0x00CB, 0x010F, 0x0147, 0x00CD, 0x00CE,
|
||||
0x011B, 0x2518, 0x250C, 0x2588, 0x2584, 0x0162, 0x016E, 0x2580,
|
||||
0x00D3, 0x00DF, 0x00D4, 0x0143, 0x0144, 0x0148, 0x0160, 0x0161,
|
||||
0x0154, 0x00DA, 0x0155, 0x0170, 0x00FD, 0x00DD, 0x0163, 0x00B4,
|
||||
0x00AD, 0x02DD, 0x02DB, 0x02C7, 0x02D8, 0x00A7, 0x00F7, 0x00B8,
|
||||
0x00B0, 0x00A8, 0x02D9, 0x0171, 0x0158, 0x0159, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 855
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP855(0x80-0xFF) to Unicode conversion table */
|
||||
0x0452, 0x0402, 0x0453, 0x0403, 0x0451, 0x0401, 0x0454, 0x0404,
|
||||
0x0455, 0x0405, 0x0456, 0x0406, 0x0457, 0x0407, 0x0458, 0x0408,
|
||||
0x0459, 0x0409, 0x045A, 0x040A, 0x045B, 0x040B, 0x045C, 0x040C,
|
||||
0x045E, 0x040E, 0x045F, 0x040F, 0x044E, 0x042E, 0x044A, 0x042A,
|
||||
0x0430, 0x0410, 0x0431, 0x0411, 0x0446, 0x0426, 0x0434, 0x0414,
|
||||
0x0435, 0x0415, 0x0444, 0x0424, 0x0433, 0x0413, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x0445, 0x0425, 0x0438,
|
||||
0x0418, 0x2563, 0x2551, 0x2557, 0x255D, 0x0439, 0x0419, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x043A, 0x041A,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
|
||||
0x043B, 0x041B, 0x043C, 0x041C, 0x043D, 0x041D, 0x043E, 0x041E,
|
||||
0x043F, 0x2518, 0x250C, 0x2588, 0x2584, 0x041F, 0x044F, 0x2580,
|
||||
0x042F, 0x0440, 0x0420, 0x0441, 0x0421, 0x0442, 0x0422, 0x0443,
|
||||
0x0423, 0x0436, 0x0416, 0x0432, 0x0412, 0x044C, 0x042C, 0x2116,
|
||||
0x00AD, 0x044B, 0x042B, 0x0437, 0x0417, 0x0448, 0x0428, 0x044D,
|
||||
0x042D, 0x0449, 0x0429, 0x0447, 0x0427, 0x00A7, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 857
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP857(0x80-0xFF) to Unicode conversion table */
|
||||
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
|
||||
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x0131, 0x00C4, 0x00C5,
|
||||
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
|
||||
0x0130, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x015E, 0x015F,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x011E, 0x011F,
|
||||
0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
|
||||
0x00A9, 0x2563, 0x2551, 0x2557, 0x255D, 0x00A2, 0x00A5, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
|
||||
0x00BA, 0x00AA, 0x00CA, 0x00CB, 0x00C8, 0x0000, 0x00CD, 0x00CE,
|
||||
0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00A6, 0x00CC, 0x2580,
|
||||
0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x0000,
|
||||
0x00D7, 0x00DA, 0x00DB, 0x00D9, 0x00EC, 0x00FF, 0x00AF, 0x00B4,
|
||||
0x00AD, 0x00B1, 0x0000, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
|
||||
0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 858
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP858(0x80-0xFF) to Unicode conversion table */
|
||||
0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,
|
||||
0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,
|
||||
0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,
|
||||
0x00FF, 0x00D6, 0x00DC, 0x00F8, 0x00A3, 0x00D8, 0x00D7, 0x0192,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
|
||||
0x00BF, 0x00AE, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x00C1, 0x00C2, 0x00C0,
|
||||
0x00A9, 0x2563, 0x2551, 0x2557, 0x2550, 0x00A2, 0x00A5, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x00E3, 0x00C3,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x00A4,
|
||||
0x00F0, 0x00D0, 0x00CA, 0x00CB, 0x00C8, 0x20AC, 0x00CD, 0x00CE,
|
||||
0x00CF, 0x2518, 0x250C, 0x2588, 0x2584, 0x00C6, 0x00CC, 0x2580,
|
||||
0x00D3, 0x00DF, 0x00D4, 0x00D2, 0x00F5, 0x00D5, 0x00B5, 0x00FE,
|
||||
0x00DE, 0x00DA, 0x00DB, 0x00D9, 0x00FD, 0x00DD, 0x00AF, 0x00B4,
|
||||
0x00AD, 0x00B1, 0x2017, 0x00BE, 0x00B6, 0x00A7, 0x00F7, 0x00B8,
|
||||
0x00B0, 0x00A8, 0x00B7, 0x00B9, 0x00B3, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 862
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP862(0x80-0xFF) to Unicode conversion table */
|
||||
0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
|
||||
0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
|
||||
0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
|
||||
0x05E8, 0x05E9, 0x05EA, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,
|
||||
0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,
|
||||
0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
||||
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
|
||||
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
|
||||
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
|
||||
0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
|
||||
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
|
||||
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 866
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP866(0x80-0xFF) to Unicode conversion table */
|
||||
0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
|
||||
0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
|
||||
0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
|
||||
0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
|
||||
0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
|
||||
0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
|
||||
0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
||||
0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,
|
||||
0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,
|
||||
0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,
|
||||
0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
|
||||
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
|
||||
0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
|
||||
0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F,
|
||||
0x0401, 0x0451, 0x0404, 0x0454, 0x0407, 0x0457, 0x040E, 0x045E,
|
||||
0x00B0, 0x2219, 0x00B7, 0x221A, 0x2116, 0x00A4, 0x25A0, 0x00A0
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 874
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP874(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x0000, 0x0000, 0x0000, 0x2026, 0x0000, 0x0000,
|
||||
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x00A0, 0x0E01, 0x0E02, 0x0E03, 0x0E04, 0x0E05, 0x0E06, 0x0E07,
|
||||
0x0E08, 0x0E09, 0x0E0A, 0x0E0B, 0x0E0C, 0x0E0D, 0x0E0E, 0x0E0F,
|
||||
0x0E10, 0x0E11, 0x0E12, 0x0E13, 0x0E14, 0x0E15, 0x0E16, 0x0E17,
|
||||
0x0E18, 0x0E19, 0x0E1A, 0x0E1B, 0x0E1C, 0x0E1D, 0x0E1E, 0x0E1F,
|
||||
0x0E20, 0x0E21, 0x0E22, 0x0E23, 0x0E24, 0x0E25, 0x0E26, 0x0E27,
|
||||
0x0E28, 0x0E29, 0x0E2A, 0x0E2B, 0x0E2C, 0x0E2D, 0x0E2E, 0x0E2F,
|
||||
0x0E30, 0x0E31, 0x0E32, 0x0E33, 0x0E34, 0x0E35, 0x0E36, 0x0E37,
|
||||
0x0E38, 0x0E39, 0x0E3A, 0x0000, 0x0000, 0x0000, 0x0000, 0x0E3F,
|
||||
0x0E40, 0x0E41, 0x0E42, 0x0E43, 0x0E44, 0x0E45, 0x0E46, 0x0E47,
|
||||
0x0E48, 0x0E49, 0x0E4A, 0x0E4B, 0x0E4C, 0x0E4D, 0x0E4E, 0x0E4F,
|
||||
0x0E50, 0x0E51, 0x0E52, 0x0E53, 0x0E54, 0x0E55, 0x0E56, 0x0E57,
|
||||
0x0E58, 0x0E59, 0x0E5A, 0x0E5B, 0x0000, 0x0000, 0x0000, 0x0000
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1250
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1250(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x0000, 0x2030, 0x0160, 0x2039, 0x015A, 0x0164, 0x017D, 0x0179,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x0000, 0x2122, 0x0161, 0x203A, 0x015B, 0x0165, 0x017E, 0x017A,
|
||||
0x00A0, 0x02C7, 0x02D8, 0x0141, 0x00A4, 0x0104, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x015E, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x017B,
|
||||
0x00B0, 0x00B1, 0x02DB, 0x0142, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x0105, 0x015F, 0x00BB, 0x013D, 0x02DD, 0x013E, 0x017C,
|
||||
0x0154, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0139, 0x0106, 0x00C7,
|
||||
0x010C, 0x00C9, 0x0118, 0x00CB, 0x011A, 0x00CD, 0x00CE, 0x010E,
|
||||
0x0110, 0x0143, 0x0147, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x00D7,
|
||||
0x0158, 0x016E, 0x00DA, 0x0170, 0x00DC, 0x00DD, 0x0162, 0x00DF,
|
||||
0x0155, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x013A, 0x0107, 0x00E7,
|
||||
0x010D, 0x00E9, 0x0119, 0x00EB, 0x011B, 0x00ED, 0x00EE, 0x010F,
|
||||
0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x00F7,
|
||||
0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, 0x0163, 0x02D9
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1251
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1251(0x80-0xFF) to Unicode conversion table */
|
||||
0x0402, 0x0403, 0x201A, 0x0453, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x20AC, 0x2030, 0x0409, 0x2039, 0x040A, 0x040C, 0x040B, 0x040F,
|
||||
0x0452, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x0000, 0x2111, 0x0459, 0x203A, 0x045A, 0x045C, 0x045B, 0x045F,
|
||||
0x00A0, 0x040E, 0x045E, 0x0408, 0x00A4, 0x0490, 0x00A6, 0x00A7,
|
||||
0x0401, 0x00A9, 0x0404, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x0407,
|
||||
0x00B0, 0x00B1, 0x0406, 0x0456, 0x0491, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x0451, 0x2116, 0x0454, 0x00BB, 0x0458, 0x0405, 0x0455, 0x0457,
|
||||
0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
|
||||
0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
|
||||
0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
|
||||
0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
|
||||
0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
|
||||
0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
|
||||
0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
|
||||
0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1252
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1252(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x017D, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x017E, 0x0178,
|
||||
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
|
||||
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
|
||||
0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
|
||||
0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF,
|
||||
0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
|
||||
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
|
||||
0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
|
||||
0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1253
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1253(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x0000, 0x2030, 0x0000, 0x2039, 0x000C, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x00A0, 0x0385, 0x0386, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x0000, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x2015,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0384, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x0388, 0x0389, 0x038A, 0x00BB, 0x038C, 0x00BD, 0x038E, 0x038F,
|
||||
0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
|
||||
0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F,
|
||||
0x03A0, 0x03A1, 0x0000, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7,
|
||||
0x03A8, 0x03A9, 0x03AA, 0x03AD, 0x03AC, 0x03AD, 0x03AE, 0x03AF,
|
||||
0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
|
||||
0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
|
||||
0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
|
||||
0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x0000
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1254
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1254(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x210A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x0000, 0x0178,
|
||||
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
|
||||
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
|
||||
0x011E, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
|
||||
0x00D8, 0x00D9, 0x00DA, 0x00BD, 0x00DC, 0x0130, 0x015E, 0x00DF,
|
||||
0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
|
||||
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
|
||||
0x011F, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
|
||||
0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0131, 0x015F, 0x00FF
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1255
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1255(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x02C6, 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x02DC, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7,
|
||||
0x05B8, 0x05B9, 0x0000, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF,
|
||||
0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3,
|
||||
0x05F4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
|
||||
0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
|
||||
0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
|
||||
0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
|
||||
0x05E8, 0x05E9, 0x05EA, 0x0000, 0x0000, 0x200E, 0x200F, 0x0000
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1256
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1256(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x067E, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x02C6, 0x2030, 0x0679, 0x2039, 0x0152, 0x0686, 0x0698, 0x0688,
|
||||
0x06AF, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x06A9, 0x2122, 0x0691, 0x203A, 0x0153, 0x200C, 0x200D, 0x06BA,
|
||||
0x00A0, 0x060C, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x06BE, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x061B, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x061F,
|
||||
0x06C1, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627,
|
||||
0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F,
|
||||
0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x00D7,
|
||||
0x0637, 0x0638, 0x0639, 0x063A, 0x0640, 0x0640, 0x0642, 0x0643,
|
||||
0x00E0, 0x0644, 0x00E2, 0x0645, 0x0646, 0x0647, 0x0648, 0x00E7,
|
||||
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0649, 0x064A, 0x00EE, 0x00EF,
|
||||
0x064B, 0x064C, 0x064D, 0x064E, 0x00F4, 0x064F, 0x0650, 0x00F7,
|
||||
0x0651, 0x00F9, 0x0652, 0x00FB, 0x00FC, 0x200E, 0x200F, 0x06D2
|
||||
}
|
||||
|
||||
#elif _CODE_PAGE == 1257
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1257(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x0000, 0x2030, 0x0000, 0x2039, 0x0000, 0x00A8, 0x02C7, 0x00B8,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x00AF, 0x02DB, 0x0000,
|
||||
0x00A0, 0x0000, 0x00A2, 0x00A3, 0x00A4, 0x0000, 0x00A6, 0x00A7,
|
||||
0x00D8, 0x00A9, 0x0156, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x0157, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00E6,
|
||||
0x0104, 0x012E, 0x0100, 0x0106, 0x00C4, 0x00C5, 0x0118, 0x0112,
|
||||
0x010C, 0x00C9, 0x0179, 0x0116, 0x0122, 0x0136, 0x012A, 0x013B,
|
||||
0x0160, 0x0143, 0x0145, 0x00D3, 0x014C, 0x00D5, 0x00D6, 0x00D7,
|
||||
0x0172, 0x0141, 0x015A, 0x016A, 0x00DC, 0x017B, 0x017D, 0x00DF,
|
||||
0x0105, 0x012F, 0x0101, 0x0107, 0x00E4, 0x00E5, 0x0119, 0x0113,
|
||||
0x010D, 0x00E9, 0x017A, 0x0117, 0x0123, 0x0137, 0x012B, 0x013C,
|
||||
0x0161, 0x0144, 0x0146, 0x00F3, 0x014D, 0x00F5, 0x00F6, 0x00F7,
|
||||
0x0173, 0x014E, 0x015B, 0x016B, 0x00FC, 0x017C, 0x017E, 0x02D9
|
||||
};
|
||||
|
||||
#elif _CODE_PAGE == 1258
|
||||
#define _TBLDEF 1
|
||||
static
|
||||
const WCHAR Tbl[] = { /* CP1258(0x80-0xFF) to Unicode conversion table */
|
||||
0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
|
||||
0x02C6, 0x2030, 0x0000, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000,
|
||||
0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
|
||||
0x02DC, 0x2122, 0x0000, 0x203A, 0x0153, 0x0000, 0x0000, 0x0178,
|
||||
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
|
||||
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
|
||||
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
|
||||
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
|
||||
0x00C0, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
|
||||
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x0300, 0x00CD, 0x00CE, 0x00CF,
|
||||
0x0110, 0x00D1, 0x0309, 0x00D3, 0x00D4, 0x01A0, 0x00D6, 0x00D7,
|
||||
0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x01AF, 0x0303, 0x00DF,
|
||||
0x00E0, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
|
||||
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0301, 0x00ED, 0x00EE, 0x00EF,
|
||||
0x0111, 0x00F1, 0x0323, 0x00F3, 0x00F4, 0x01A1, 0x00F6, 0x00F7,
|
||||
0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x01B0, 0x20AB, 0x00FF
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
#if !_TBLDEF || !_USE_LFN
|
||||
#error This file is not needed in current configuration. Remove from the project.
|
||||
#endif
|
||||
|
||||
|
||||
WCHAR ff_convert ( /* Converted character, Returns zero on error */
|
||||
WCHAR chr, /* Character code to be converted */
|
||||
UINT dir /* 0: Unicode to OEMCP, 1: OEMCP to Unicode */
|
||||
)
|
||||
{
|
||||
WCHAR c;
|
||||
|
||||
|
||||
if (chr < 0x80) { /* ASCII */
|
||||
c = chr;
|
||||
|
||||
} else {
|
||||
if (dir) { /* OEMCP to Unicode */
|
||||
c = (chr >= 0x100) ? 0 : Tbl[chr - 0x80];
|
||||
|
||||
} else { /* Unicode to OEMCP */
|
||||
for (c = 0; c < 0x80; c++) {
|
||||
if (chr == Tbl[c]) break;
|
||||
}
|
||||
c = (c + 0x80) & 0xFF;
|
||||
}
|
||||
}
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
|
||||
WCHAR ff_wtoupper ( /* Upper converted character */
|
||||
WCHAR chr /* Input character */
|
||||
)
|
||||
{
|
||||
static const WCHAR tbl_lower[] = { 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xA1, 0x00A2, 0x00A3, 0x00A5, 0x00AC, 0x00AF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0x0FF, 0x101, 0x103, 0x105, 0x107, 0x109, 0x10B, 0x10D, 0x10F, 0x111, 0x113, 0x115, 0x117, 0x119, 0x11B, 0x11D, 0x11F, 0x121, 0x123, 0x125, 0x127, 0x129, 0x12B, 0x12D, 0x12F, 0x131, 0x133, 0x135, 0x137, 0x13A, 0x13C, 0x13E, 0x140, 0x142, 0x144, 0x146, 0x148, 0x14B, 0x14D, 0x14F, 0x151, 0x153, 0x155, 0x157, 0x159, 0x15B, 0x15D, 0x15F, 0x161, 0x163, 0x165, 0x167, 0x169, 0x16B, 0x16D, 0x16F, 0x171, 0x173, 0x175, 0x177, 0x17A, 0x17C, 0x17E, 0x192, 0x3B1, 0x3B2, 0x3B3, 0x3B4, 0x3B5, 0x3B6, 0x3B7, 0x3B8, 0x3B9, 0x3BA, 0x3BB, 0x3BC, 0x3BD, 0x3BE, 0x3BF, 0x3C0, 0x3C1, 0x3C3, 0x3C4, 0x3C5, 0x3C6, 0x3C7, 0x3C8, 0x3C9, 0x3CA, 0x430, 0x431, 0x432, 0x433, 0x434, 0x435, 0x436, 0x437, 0x438, 0x439, 0x43A, 0x43B, 0x43C, 0x43D, 0x43E, 0x43F, 0x440, 0x441, 0x442, 0x443, 0x444, 0x445, 0x446, 0x447, 0x448, 0x449, 0x44A, 0x44B, 0x44C, 0x44D, 0x44E, 0x44F, 0x451, 0x452, 0x453, 0x454, 0x455, 0x456, 0x457, 0x458, 0x459, 0x45A, 0x45B, 0x45C, 0x45E, 0x45F, 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177, 0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47, 0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F, 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57, 0xFF58, 0xFF59, 0xFF5A, 0 };
|
||||
static const WCHAR tbl_upper[] = { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x21, 0xFFE0, 0xFFE1, 0xFFE5, 0xFFE2, 0xFFE3, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0x178, 0x100, 0x102, 0x104, 0x106, 0x108, 0x10A, 0x10C, 0x10E, 0x110, 0x112, 0x114, 0x116, 0x118, 0x11A, 0x11C, 0x11E, 0x120, 0x122, 0x124, 0x126, 0x128, 0x12A, 0x12C, 0x12E, 0x130, 0x132, 0x134, 0x136, 0x139, 0x13B, 0x13D, 0x13F, 0x141, 0x143, 0x145, 0x147, 0x14A, 0x14C, 0x14E, 0x150, 0x152, 0x154, 0x156, 0x158, 0x15A, 0x15C, 0x15E, 0x160, 0x162, 0x164, 0x166, 0x168, 0x16A, 0x16C, 0x16E, 0x170, 0x172, 0x174, 0x176, 0x179, 0x17B, 0x17D, 0x191, 0x391, 0x392, 0x393, 0x394, 0x395, 0x396, 0x397, 0x398, 0x399, 0x39A, 0x39B, 0x39C, 0x39D, 0x39E, 0x39F, 0x3A0, 0x3A1, 0x3A3, 0x3A4, 0x3A5, 0x3A6, 0x3A7, 0x3A8, 0x3A9, 0x3AA, 0x410, 0x411, 0x412, 0x413, 0x414, 0x415, 0x416, 0x417, 0x418, 0x419, 0x41A, 0x41B, 0x41C, 0x41D, 0x41E, 0x41F, 0x420, 0x421, 0x422, 0x423, 0x424, 0x425, 0x426, 0x427, 0x428, 0x429, 0x42A, 0x42B, 0x42C, 0x42D, 0x42E, 0x42F, 0x401, 0x402, 0x403, 0x404, 0x405, 0x406, 0x407, 0x408, 0x409, 0x40A, 0x40B, 0x40C, 0x40E, 0x40F, 0x2160, 0x2161, 0x2162, 0x2163, 0x2164, 0x2165, 0x2166, 0x2167, 0x2168, 0x2169, 0x216A, 0x216B, 0x216C, 0x216D, 0x216E, 0x216F, 0xFF21, 0xFF22, 0xFF23, 0xFF24, 0xFF25, 0xFF26, 0xFF27, 0xFF28, 0xFF29, 0xFF2A, 0xFF2B, 0xFF2C, 0xFF2D, 0xFF2E, 0xFF2F, 0xFF30, 0xFF31, 0xFF32, 0xFF33, 0xFF34, 0xFF35, 0xFF36, 0xFF37, 0xFF38, 0xFF39, 0xFF3A, 0 };
|
||||
int i;
|
||||
|
||||
|
||||
for (i = 0; tbl_lower[i] && chr != tbl_lower[i]; i++) ;
|
||||
|
||||
return tbl_lower[i] ? tbl_upper[i] : chr;
|
||||
}
|
||||
153
3rdparty/fatfs-0.10b/src/option/syscall.c
vendored
153
3rdparty/fatfs-0.10b/src/option/syscall.c
vendored
|
|
@ -1,153 +0,0 @@
|
|||
/*------------------------------------------------------------------------*/
|
||||
/* Sample code of OS dependent controls for FatFs */
|
||||
/* (C)ChaN, 2012 */
|
||||
/*------------------------------------------------------------------------*/
|
||||
|
||||
#include <stdlib.h> /* ANSI memory controls */
|
||||
#include <malloc.h> /* ANSI memory controls */
|
||||
|
||||
#include "../ff.h"
|
||||
|
||||
|
||||
#if _FS_REENTRANT
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Create a Synchronization Object
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* This function is called by f_mount() function to create a new
|
||||
/ synchronization object, such as semaphore and mutex. When a 0 is
|
||||
/ returned, the f_mount() function fails with FR_INT_ERR.
|
||||
*/
|
||||
|
||||
int ff_cre_syncobj ( /* 1:Function succeeded, 0:Could not create due to any error */
|
||||
BYTE vol, /* Corresponding logical drive being processed */
|
||||
_SYNC_t* sobj /* Pointer to return the created sync object */
|
||||
)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
||||
*sobj = CreateMutex(NULL, FALSE, NULL); /* Win32 */
|
||||
ret = (int)(*sobj != INVALID_HANDLE_VALUE);
|
||||
|
||||
// *sobj = SyncObjects[vol]; /* uITRON (give a static created semaphore) */
|
||||
// ret = 1;
|
||||
|
||||
// *sobj = OSMutexCreate(0, &err); /* uC/OS-II */
|
||||
// ret = (int)(err == OS_NO_ERR);
|
||||
|
||||
// *sobj = xSemaphoreCreateMutex(); /* FreeRTOS */
|
||||
// ret = (int)(*sobj != NULL);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Delete a Synchronization Object */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* This function is called in f_mount() function to delete a synchronization
|
||||
/ object that created with ff_cre_syncobj() function. When a 0 is
|
||||
/ returned, the f_mount() function fails with FR_INT_ERR.
|
||||
*/
|
||||
|
||||
int ff_del_syncobj ( /* 1:Function succeeded, 0:Could not delete due to any error */
|
||||
_SYNC_t sobj /* Sync object tied to the logical drive to be deleted */
|
||||
)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
||||
ret = CloseHandle(sobj); /* Win32 */
|
||||
|
||||
// ret = 1; /* uITRON (nothing to do) */
|
||||
|
||||
// OSMutexDel(sobj, OS_DEL_ALWAYS, &err); /* uC/OS-II */
|
||||
// ret = (int)(err == OS_NO_ERR);
|
||||
|
||||
// xSemaphoreDelete(sobj); /* FreeRTOS */
|
||||
// ret = 1;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Request Grant to Access the Volume */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* This function is called on entering file functions to lock the volume.
|
||||
/ When a FALSE is returned, the file function fails with FR_TIMEOUT.
|
||||
*/
|
||||
|
||||
int ff_req_grant ( /* TRUE:Got a grant to access the volume, FALSE:Could not get a grant */
|
||||
_SYNC_t sobj /* Sync object to wait */
|
||||
)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = (int)(WaitForSingleObject(sobj, _FS_TIMEOUT) == WAIT_OBJECT_0); /* Win32 */
|
||||
|
||||
// ret = (int)(wai_sem(sobj) == E_OK); /* uITRON */
|
||||
|
||||
// OSMutexPend(sobj, _FS_TIMEOUT, &err)); /* uC/OS-II */
|
||||
// ret = (int)(err == OS_NO_ERR);
|
||||
|
||||
// ret = (int)(xSemaphoreTake(sobj, _FS_TIMEOUT) == pdTRUE); /* FreeRTOS */
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Release Grant to Access the Volume */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* This function is called on leaving file functions to unlock the volume.
|
||||
*/
|
||||
|
||||
void ff_rel_grant (
|
||||
_SYNC_t sobj /* Sync object to be signaled */
|
||||
)
|
||||
{
|
||||
ReleaseMutex(sobj); /* Win32 */
|
||||
|
||||
// sig_sem(sobj); /* uITRON */
|
||||
|
||||
// OSMutexPost(sobj); /* uC/OS-II */
|
||||
|
||||
// xSemaphoreGive(sobj); /* FreeRTOS */
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
||||
#if _USE_LFN == 3 /* LFN with a working buffer on the heap */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Allocate a memory block */
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* If a NULL is returned, the file function fails with FR_NOT_ENOUGH_CORE.
|
||||
*/
|
||||
|
||||
void* ff_memalloc ( /* Returns pointer to the allocated memory block */
|
||||
UINT msize /* Number of bytes to allocate */
|
||||
)
|
||||
{
|
||||
return malloc(msize);
|
||||
}
|
||||
|
||||
|
||||
/*------------------------------------------------------------------------*/
|
||||
/* Free a memory block */
|
||||
/*------------------------------------------------------------------------*/
|
||||
|
||||
void ff_memfree (
|
||||
void* mblock /* Pointer to the memory block to free */
|
||||
)
|
||||
{
|
||||
free(mblock);
|
||||
}
|
||||
|
||||
#endif
|
||||
17
3rdparty/fatfs-0.10b/src/option/unicode.c
vendored
17
3rdparty/fatfs-0.10b/src/option/unicode.c
vendored
|
|
@ -1,17 +0,0 @@
|
|||
#include "../ff.h"
|
||||
|
||||
#if _USE_LFN != 0
|
||||
|
||||
#if _CODE_PAGE == 932 /* Japanese Shift_JIS */
|
||||
#include "cc932.c"
|
||||
#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
|
||||
#include "cc936.c"
|
||||
#elif _CODE_PAGE == 949 /* Korean */
|
||||
#include "cc949.c"
|
||||
#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
|
||||
#include "cc950.c"
|
||||
#else /* Small character-set */
|
||||
#include "ccsbcs.c"
|
||||
#endif
|
||||
|
||||
#endif
|
||||
139
3rdparty/fatfs-0.13/documents/00index_e.html
vendored
Normal file
139
3rdparty/fatfs-0.13/documents/00index_e.html
vendored
Normal file
|
|
@ -0,0 +1,139 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<meta http-equiv="cache-control" content="no-cache">
|
||||
<meta name="description" content="Open source FAT filesystem for embedded projects">
|
||||
<link rel="stylesheet" href="css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - Generic FAT Filesystem Module</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>FatFs - Generic FAT Filesystem Module</h1>
|
||||
<hr>
|
||||
|
||||
<div class="abst">
|
||||
<img src="res/layers.png" class="rset" width="245" height="255" alt="layer">
|
||||
<p>FatFs is a generic FAT/exFAT filesystem module for small embedded systems. The FatFs module is written in compliance with ANSI C (C89) and completely separated from the disk I/O layer. Therefore it is independent of the platform. It can be incorporated into small microcontrollers with limited resource, such as 8051, PIC, AVR, ARM, Z80, RX and etc. Also Petit FatFs module for tiny microcontrollers is available <a href="http://elm-chan.org/fsw/ff/00index_p.html">here</a>.</p>
|
||||
|
||||
<h4>Features</h4>
|
||||
<ul>
|
||||
<li>DOS/Windows compatible FAT/exFAT filesystem.</li>
|
||||
<li>Platform independent. Easy to port.</li>
|
||||
<li>Very small footprint for program code and work area.</li>
|
||||
<li>Various <a href="doc/config.html">configuration options</a> to support for:
|
||||
<ul>
|
||||
<li>Multiple volumes (physical drives and partitions).</li>
|
||||
<li>Multiple ANSI/OEM code pages including DBCS.</li>
|
||||
<li>Long file name in ANSI/OEM or Unicode.</li>
|
||||
<li>exFAT filesystem.</li>
|
||||
<li>RTOS envilonment.</li>
|
||||
<li>Fixed or variable sector size.</li>
|
||||
<li>Read-only, optional API, I/O buffer and etc...</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para">
|
||||
<h3>Application Interface</h3>
|
||||
<img src="res/layers1.png" class="rset" width="245" height="220" alt="layer">
|
||||
<p>FatFs provides various filesystem functions for the applications as shown below.</p>
|
||||
<ul>
|
||||
<li>File Access
|
||||
<ul>
|
||||
<li><a href="doc/open.html">f_open</a> - Open/Create a file</li>
|
||||
<li><a href="doc/close.html">f_close</a> - Close an open file</li>
|
||||
<li><a href="doc/read.html">f_read</a> - Read data from the file</li>
|
||||
<li><a href="doc/write.html">f_write</a> - Write data to the file</li>
|
||||
<li><a href="doc/lseek.html">f_lseek</a> - Move read/write pointer, Expand size</li>
|
||||
<li><a href="doc/truncate.html">f_truncate</a> - Truncate file size</li>
|
||||
<li><a href="doc/sync.html">f_sync</a> - Flush cached data</li>
|
||||
<li><a href="doc/forward.html">f_forward</a> - Forward data to the stream</li>
|
||||
<li><a href="doc/expand.html">f_expand</a> - Allocate a contiguous block to the file</li>
|
||||
<li><a href="doc/gets.html">f_gets</a> - Read a string</li>
|
||||
<li><a href="doc/putc.html">f_putc</a> - Write a character</li>
|
||||
<li><a href="doc/puts.html">f_puts</a> - Write a string</li>
|
||||
<li><a href="doc/printf.html">f_printf</a> - Write a formatted string</li>
|
||||
<li><a href="doc/tell.html">f_tell</a> - Get current read/write pointer</li>
|
||||
<li><a href="doc/eof.html">f_eof</a> - Test for end-of-file</li>
|
||||
<li><a href="doc/size.html">f_size</a> - Get size</li>
|
||||
<li><a href="doc/error.html">f_error</a> - Test for an error</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Directory Access
|
||||
<ul>
|
||||
<li><a href="doc/opendir.html">f_opendir</a> - Open a directory</li>
|
||||
<li><a href="doc/closedir.html">f_closedir</a> - Close an open directory</li>
|
||||
<li><a href="doc/readdir.html">f_readdir</a> - Read an directory item</li>
|
||||
<li><a href="doc/findfirst.html">f_findfirst</a> - Open a directory and read the first item matched</li>
|
||||
<li><a href="doc/findnext.html">f_findnext</a> - Read a next item matched</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>File and Directory Management
|
||||
<ul>
|
||||
<li><a href="doc/stat.html">f_stat</a> - Check existance of a file or sub-directory</li>
|
||||
<li><a href="doc/unlink.html">f_unlink</a> - Remove a file or sub-directory</li>
|
||||
<li><a href="doc/rename.html">f_rename</a> - Rename/Move a file or sub-directory</li>
|
||||
<li><a href="doc/chmod.html">f_chmod</a> - Change attribute of a file or sub-directory</li>
|
||||
<li><a href="doc/utime.html">f_utime</a> - Change timestamp of a file or sub-directory</li>
|
||||
<li><a href="doc/mkdir.html">f_mkdir</a> - Create a sub-directory</li>
|
||||
<li><a href="doc/chdir.html">f_chdir</a> - Change current directory</li>
|
||||
<li><a href="doc/chdrive.html">f_chdrive</a> - Change current drive</li>
|
||||
<li><a href="doc/getcwd.html">f_getcwd</a> - Retrieve the current directory and drive</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Volume Management and System Configuration
|
||||
<ul>
|
||||
<li><a href="doc/mount.html">f_mount</a> - Register/Unregister the work area of the volume</li>
|
||||
<li><a href="doc/mkfs.html">f_mkfs</a> - Create an FAT volume on the logical drive</li>
|
||||
<li><a href="doc/fdisk.html">f_fdisk</a> - Create logical drives on the physical drive</li>
|
||||
<li><a href="doc/getfree.html">f_getfree</a> - Get total size and free size on the volume</li>
|
||||
<li><a href="doc/getlabel.html">f_getlabel</a> - Get volume label</li>
|
||||
<li><a href="doc/setlabel.html">f_setlabel</a> - Set volume label</li>
|
||||
<li><a href="doc/setcp.html">f_setcp</a> - Set active code page</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para">
|
||||
<h3>Media Access Interface</h3>
|
||||
<img src="res/layers2.png" class="rset" width="245" height="220" alt="layer">
|
||||
<p>Since the FatFs module is the <em>filesystem layer</em> independent of platforms and storage media, it is completely separated from the physical devices, such as memory card, harddisk and any type of storage device. The low level device control module is <em>not a part of FatFs module</em> and it needs to be provided by implementer. FatFs accesses the storage devices via a simple media access interface shown below. Also sample implementations for some platforms are available in the downloads. A function checker for low level disk I/O module is available <a href="res/app4.c">here</a>.</p>
|
||||
<ul>
|
||||
<li><a href="doc/dstat.html">disk_status</a> - Get device status</li>
|
||||
<li><a href="doc/dinit.html">disk_initialize</a> - Initialize device</li>
|
||||
<li><a href="doc/dread.html">disk_read</a> - Read sector(s)</li>
|
||||
<li><a href="doc/dwrite.html">disk_write</a> - Write sector(s)</li>
|
||||
<li><a href="doc/dioctl.html">disk_ioctl</a> - Control device dependent functions</li>
|
||||
<li><a href="doc/fattime.html">get_fattime</a> - Get current time</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para">
|
||||
<h3>Resources</h3>
|
||||
<p>The FatFs module is a free software opened for education, research and development. You can use, modify and/or redistribute it for personal projects or commercial products without any restriction under your responsibility. For further information, refer to the application note.</p>
|
||||
<ul>
|
||||
<li>Read first: <a href="doc/appnote.html">FatFs module application note</a> <span class="mfd">May 21, 2017</span></li>
|
||||
<li>Community: <a href="http://elm-chan.org/fsw/ff/bd/">FatFs User Forum</a></li>
|
||||
<li><a href="https://msdn.microsoft.com/en-us/windows/hardware/gg463080.aspx">FAT32 Specification by Microsoft</a>↗ (The authorized document on FAT filesystem)</li>
|
||||
<li><a href="http://elm-chan.org/docs/fat_e.html">The basics of FAT filesystem</a></li>
|
||||
<li><a href="http://elm-chan.org/docs/exfat_e.html">The basics of exFAT filesystem</a></li>
|
||||
<li><a href="http://elm-chan.org/docs/mmc/mmc_e.html">How to use MMC/SDC</a></li>
|
||||
<li><a href="http://elm-chan.org/junk/fa/faff.html">Playing with FlashAir and FatFs</a></li>
|
||||
<li><a href="http://stm32f4-discovery.com/2014/07/library-21-read-sd-card-fatfs-stm32f4xx-devices/">Read SD card with FatFs on STM32F4xx devices by Tilen Majerle</a>↗ (Quick and easy implementation for STM32F4-Discovery)</li>
|
||||
<li><a href="http://nemuisan.blog.bai.ne.jp/">Nemuisan's Blog</a>↗ (Well written implementations for STM32F/SPI & SDIO and LPC4088/SDMMC)</li>
|
||||
<li><a href="res/rwtest1.png">Benchmark 1</a> (ATmega1284/20MHz with MMC via USART in SPI, CFC via GPIO)</li>
|
||||
<li><a href="res/rwtest2.png">Benchmark 2</a> (LPC2368/72MHz with MMC via MCI)</li>
|
||||
</div>
|
||||
|
||||
|
||||
<hr>
|
||||
<p class="foot"><a href="http://elm-chan.org/fsw/ff/00index_e.html">FatFs Home Page</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -14,16 +14,18 @@ strong {}
|
|||
pre {border: 1px dashed gray; margin: 0.5em 1em; padding: 0.5em; line-height: 1.2em; font-size: 85%; font-family: "Consolas", "Courier New", monospace; background-color: white;}
|
||||
pre span.c {color: green;}
|
||||
pre span.k {color: blue;}
|
||||
pre span.b {font-weight: bold;}
|
||||
pre span.arg {font-style: italic;}
|
||||
tt {margin: 0 0.2em; font-size: 0.85em; font-family: "Consolas", "Courier New", monospace; }
|
||||
tt.arg {font-style: italic;}
|
||||
ol {margin: 0.5em 2.5em;}
|
||||
ul {margin: 0.5em 2em;}
|
||||
ul ul {margin: 0 2em 0.5em 1em;}
|
||||
dl {margin: 0.5em 1em;}
|
||||
dd {margin: 0 2em;}
|
||||
dt {font-size: 0.85em; font-family: "Consolas", "Courier New", monospace;}
|
||||
dl.par dt {margin: 0.5em 0 0 0 ; font-style: italic; }
|
||||
dl.ret dt {margin: 0.5em 0 0 0 ; font-size: 0.85em; font-family: "Consolas", "Courier New", monospace;}
|
||||
dl.ret dt {margin: 0.5em 0 0 0 ; font-size: 0.85em; font-family: "Consolas", "Courier New", monospace; font-weight: bold; }
|
||||
hr {border-width: 1px; margin: 1em;}
|
||||
div.abst {font-family: sans-serif;}
|
||||
div.para {clear: both; font-family: serif;}
|
||||
|
|
@ -43,13 +45,14 @@ a.imglnk img {border: 1px solid;}
|
|||
.cal {text-align: center; }
|
||||
|
||||
h1 {line-height: 1em; font-size: 2em; font-family: sans-serif; padding: 0.3em 0 0.3em;}
|
||||
p.hdd {float: right; text-align: right; margin-top: 0.5em;}
|
||||
hr.hds {clear: both; margin-bottom: 1em;}
|
||||
|
||||
h2 {font-size: 2em; font-family: sans-serif; background-color: #d8d8FF; padding: 0.5em 0.5em; margin: 0 0 0.5em;}
|
||||
h3 {font-size: 1.5em; font-family: sans-serif; margin: 1.5em 0 0.5em;}
|
||||
h4 {font-size: 1.2em; font-family: sans-serif; margin: 1em 0 0.2em;}
|
||||
h5 {font-size: 1em; font-family: sans-serif; margin: 0.5em 0 0em;}
|
||||
div.doc h3 {border-color: #b0d8d8; border-style: solid; border-width: 0px 0px 4px 12px; padding: 4px; margin-top: 3em;}
|
||||
h4 {font-size: 1.2em; font-family: sans-serif; margin: 2em 0 0.2em;}
|
||||
h5 {font-size: 1em; font-family: sans-serif; margin: 1em 0 0em;}
|
||||
p.hdd {float: right; text-align: right; margin-top: 0.5em;}
|
||||
hr.hds {clear: both; margin-bottom: 1em;}
|
||||
kbd {letter-spacing: 0;}
|
||||
small {font-size: 80%;}
|
||||
.indent {margin-left: 2em;}
|
||||
|
||||
|
|
@ -57,8 +60,9 @@ small {font-size: 80%;}
|
|||
table {margin: 0.5em 1em; border-collapse: collapse; border: 2px solid black; }
|
||||
th {background-color: white; border-style: solid; border-width: 1px 1px 2px; border-color: black; padding: 0 3px; vertical-align: top; white-space: nowrap;}
|
||||
td {background-color: white; border: 1px solid black; padding: 0 3px; vertical-align: top; line-height: 1.3em;}
|
||||
table.lst td:first-child {font-size: 0.85em; font-family: "Consolas", "Courier New", monospace;}
|
||||
table.lst2 td {font-size: 0.85em; font-family: "Consolas", "Courier New", monospace;}
|
||||
table.lst td:first-child {font-size: 0.85em; font-family: "Consolas", "Courier New", monospace; white-space: nowrap;}
|
||||
table.lst2 td {font-size: 0.85em; font-family: "Consolas", "Courier New", monospace; white-space: nowrap;}
|
||||
table.lst3 td {font-family: "Consolas", "Courier New", monospace; white-space: nowrap;}
|
||||
table caption {font-family: sans-serif; font-weight: bold;}
|
||||
tr.lst3 td { border-width: 2px 1px 1px; }
|
||||
|
||||
283
3rdparty/fatfs-0.13/documents/doc/appnote.html
vendored
Normal file
283
3rdparty/fatfs-0.13/documents/doc/appnote.html
vendored
Normal file
|
|
@ -0,0 +1,283 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/appnote.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs Module Application Note</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>FatFs Module Application Note</h1>
|
||||
<ol class="toc">
|
||||
<li><a href="#port">How to Port</a></li>
|
||||
<li><a href="#limits">Limits</a></li>
|
||||
<li><a href="#memory">Memory Usage</a></li>
|
||||
<li><a href="#reduce">Reducing Module Size</a></li>
|
||||
<li><a href="#lfn">Long File Name</a></li>
|
||||
<li><a href="#unicode">Unicode API</a></li>
|
||||
<li><a href="#exfat">exFAT Filesystem</a></li>
|
||||
<li><a href="#reentrant">Re-entrancy</a></li>
|
||||
<li><a href="#dup">Duplicated File Access</a></li>
|
||||
<li><a href="#fs1">Performance Effective File Access</a></li>
|
||||
<li><a href="#fs2">Considerations on Flash Memory Media</a></li>
|
||||
<li><a href="#critical">Critical Section</a></li>
|
||||
<li><a href="#fs3">Extended Use of FatFs API</a></li>
|
||||
<li><a href="#license">About FatFs License</a></li>
|
||||
</ol>
|
||||
|
||||
<div class="para doc" id="port">
|
||||
<h3>How to Port</h3>
|
||||
|
||||
<h4>Basic considerations</h4>
|
||||
<p>The FatFs module is assuming following conditions on portability.</p>
|
||||
<ul>
|
||||
<li>ANSI C<br>
|
||||
The FatFs module is a middleware written in ANSI C (C89). There is no platform dependence, so long as the compiler is in compliance with ANSI C.</li>
|
||||
<li>Size of integer types<br>
|
||||
The FatFs module assumes that size of <tt>char</tt>/<tt>short</tt>/<tt>long</tt> are 8/16/32 bit and <tt>int</tt> is 16 or 32 bit. These correspondence are defined in <tt>integer.h</tt>. This will not be a problem on most compilers. When a conflict with existing definitions is occured, you must resolve it with care.</li>
|
||||
</ul>
|
||||
|
||||
<h4>System organizations</h4>
|
||||
<p>The dependency diagram shown below is a typical but not specific configuration of the embedded system with FatFs module.</p>
|
||||
<p><img src="../res/modules.png" width="580" height="280" alt="dependency diagram"></p>
|
||||
<p>(a) If a working disk module with FatFs disk interface is provided, nothing else will be needed. (b) To attach existing disk drivers with different interface, glue functions are needed to translate the interfaces between FatFs and the drivers.</p>
|
||||
<p><img src="../res/funcs.png" width="750" height="420" alt="functional diagram"></p>
|
||||
|
||||
<h4>Required functions</h4>
|
||||
<p>You need to provide only low level disk I/O functions required by FatFs module and nothing else. If a working disk module for the target system is already provided, you need to write only glue functions to attach it to the FatFs module. If not, you need to port another disk I/O module or write it from scratch. Most of defined functions are not that always required. For example, any write function is not required at read-only configuration. Following table shows which function is required depends on the configuration options.</p>
|
||||
<table class="lst2">
|
||||
<tr><th>Function</th><th>Required when</th><th>Note</th></tr>
|
||||
<tr><td>disk_status<br>disk_initialize<br>disk_read</td><td>Always</td><td rowspan="5">Disk I/O functions.<br>Samples available in ffsample.zip.<br>There are many implementations on the web.</td></tr>
|
||||
<tr><td>disk_write<br>get_fattime<br>disk_ioctl (CTRL_SYNC)</td><td>FF_FS_READONLY == 0</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_COUNT)<br>disk_ioctl (GET_BLOCK_SIZE)</td><td>FF_USE_MKFS == 1</td></tr>
|
||||
<tr><td>disk_ioctl (GET_SECTOR_SIZE)</td><td>FF_MAX_SS != FF_MIN_SS</td></tr>
|
||||
<tr><td>disk_ioctl (CTRL_TRIM)</td><td>FF_USE_TRIM == 1</td></tr>
|
||||
<tr><td>ff_uni2oem<br>ff_oem2uni<br>ff_wtoupper</td><td>FF_USE_LFN != 0</td><td>Unicode support functions.<br>Just add ffunicode.c to the project.</td></tr>
|
||||
<tr><td>ff_cre_syncobj<br>ff_del_syncobj<br>ff_req_grant<br>ff_rel_grant</td><td>FF_FS_REENTRANT == 1</td><td rowspan="2">O/S dependent functions.<br>Samples available in ffsystem.c.</td></tr>
|
||||
<tr><td>ff_mem_alloc<br>ff_mem_free</td><td>FF_USE_LFN == 3</td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="limits">
|
||||
<h3>Limits</h3>
|
||||
<ul>
|
||||
<li>Filesystem type: FAT, FAT32(rev0.0) and exFAT(rev1.0).</li>
|
||||
<li>Number of open files: Unlimited. (depends on available memory)</li>
|
||||
<li>Number of volumes: Upto 10.</li>
|
||||
<li>Volume size: Upto 2 TB at 512 bytes/sector.</li>
|
||||
<li>File size: Upto 4 GB - 1 on FAT volume and virtually unlimited on exFAT volume.</li>
|
||||
<li>Cluster size: Upto 128 sectors on FAT volume and upto 16 MB on exFAT volume.</li>
|
||||
<li>Sector size: 512, 1024, 2048 and 4096 bytes.</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="memory">
|
||||
<h3>Memory Usage</h3>
|
||||
<p>The memory usage varies depends on the <a href="config.html">configuration options</a>.</p>
|
||||
<table class="lst2">
|
||||
<tr><th></th><th>ARM7<small><br>32bit</small></th><th>ARM7<small><br>Thumb</small></th><th>CM3<small><br>Thumb-2</small></th><th>AVR</th><th>H8/300H</th><th>PIC24</th><th>RL78</th><th>V850ES</th><th>SH-2A</th><th>RX600</th><th>IA-32</th></tr>
|
||||
<tr class="cal"> <td>Compiler</td><td>GCC</td><td>GCC</td><td>GCC</td><td>GCC</td><td>CH38</td><td>C30</td><td>CC78K0R</td><td>CA850</td><td>SHC</td><td>RXC</td><td>MSC</td></tr>
|
||||
<!-- ARM Thumb CM3 AVR H8 PIC24 RL78 V850ES SH-2A RX600 IA-32 -->
|
||||
<tr class="ral"><td class="cal">text (Full, R/W)</td><td>10.3k</td><td>6.7k</td><td>6.3k</td><td>12.4k</td> <td>9.9k</td><td>11.4k</td><td>13.1k</td><td>8.7k</td><td>9.0k</td><td>6.5k</td><td>8.6k</td></tr>
|
||||
<tr class="ral"><td class="cal">text (Min, R/W)</td> <td>6.9k</td><td>4.7k</td><td>4.4k</td> <td>8.4k</td> <td>6.9k</td> <td>8.0k</td> <td>9.4k</td><td>6.2k</td><td>6.2k</td><td>4.6k</td><td>6.1k</td></tr>
|
||||
<tr class="ral"><td class="cal">text (Full, R/O)</td> <td>4.7k</td><td>3.1k</td><td>2.8k</td> <td>5.7k</td> <td>4.7k</td> <td>5.4k</td> <td>6.4k</td><td>4.2k</td><td>4.0k</td><td>3.1k</td><td>4.1k</td></tr>
|
||||
<tr class="ral"><td class="cal">text (Min, R/O)</td> <td>3.6k</td><td>2.4k</td><td>2.2k</td> <td>4.4k</td> <td>3.6k</td> <td>4.2k</td> <td>5.0k</td><td>3.3k</td><td>3.1k</td><td>2.4k</td><td>3.2k</td></tr>
|
||||
<tr class="ral"><td class="cal">bss</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*2 + 2</td><td>V*2 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td><td>V*4 + 2</td></tr>
|
||||
<tr class="ral"><td class="cal">Work area<br><small>(FF_FS_TINY == 0)</small></td><td>V*564<br>+ F*552</td><td>V*564<br>+ F*552</td><td>V*564<br>+ F*552</td><td>V*560<br>+ F*546</td><td>V*560<br>+ F*546</td><td>V*560<br>+ F*546</td><td>V*560<br>+ F*546</td><td>V*564<br>+ F*552</td><td>V*564<br>+ F*552</td><td>V*564<br>+ F*552</td><td>V*564<br>+ F*552</td></tr>
|
||||
<tr class="ral"><td class="cal">Work area<br><small>(FF_FS_TINY == 1)</small></td><td>V*564<br>+ F*40</td><td>V*564<br>+ F*40</td><td>V*564<br>+ F*40</td><td>V*560<br>+ F*34</td><td>V*560<br>+ F*34</td><td>V*560<br>+ F*34</td><td>V*560<br>+ F*34</td><td>V*564<br>+ F*40</td><td>V*564<br>+ F*40</td><td>V*564<br>+ F*40</td><td>V*564<br>+ F*40</td></tr>
|
||||
</table>
|
||||
<p>These are the memory usage on some target systems with following condition. The memory sizes are in unit of byte, <em>V</em> denotes option <tt>FF_VOLUMES</tt> and <em>F</em> denotes number of open files. All samples here are optimezed in code size.</p>
|
||||
<pre>
|
||||
FatFs R0.13 options:
|
||||
FF_FS_READONLY 0 (R/W) or 1 (R/O)
|
||||
FF_FS_MINIMIZE 0 (Full, with all basic functions) or 3 (Min, with fully minimized)
|
||||
FF_FS_TINY 0 (Default) or 1 (Tiny file object)
|
||||
And other options are left unchanged from original setting.
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="reduce">
|
||||
<h3>Reducing Modle Size</h3>
|
||||
<p>Follwing table shows which API function is removed by configuration options for the module size reduction. To use any API function, the row of the function must be clear.</p>
|
||||
<table class="lst2">
|
||||
<tr><td rowspan="2">Function</td><td colspan="4">FF_FS_<br>MINIMIZE</td><td colspan="2">FF_FS_<br>READONLY</td><td colspan="2">FF_USE_<br>STRFUNC</td><td colspan="3">FF_FS_<br>RPATH</td><td colspan="2">FF_USE_<br>FIND</td><td colspan="2">FF_USE_<br>CHMOD</td><td colspan="2">FF_USE_<br>EXPAND</td><td colspan="2">FF_USE_<br>LABEL</td><td colspan="2">FF_USE_<br>MKFS</td><td colspan="2">FF_USE_<br>FORWARD</td><td colspan="2">FF_MULTI_<br>PARTITION</td></tr>
|
||||
<tr> <td>0</td><td>1</td><td>2</td><td>3</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>2</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td><td>0</td><td>1</td></tr>
|
||||
<tr class="lst3">
|
||||
<td>f_mount</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_open</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_close</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_read</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_write</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_sync</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_lseek</td> <td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_opendir</td> <td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_closedir</td> <td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_readdir</td> <td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_findfirst</td><td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_findnext</td> <td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_stat</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_getfree</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_truncate</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_unlink</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_mkdir</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_rename</td> <td> </td><td>x</td><td>x</td><td>x</td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_chdir</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_chdrive</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_getcwd</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_chmod</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_utime</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_getlabel</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_setlabel</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_expand</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_forward</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_mkfs</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_fdisk</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td>x</td><td> </td></tr>
|
||||
<tr><td>f_putc</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_puts</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_printf</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
<tr><td>f_gets</td> <td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>x</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="lfn">
|
||||
<h3>Long File Name</h3>
|
||||
<p>FatFs module supports long file name (LFN). The two different file names, short file name (SFN) and LFN, of a file is transparent on the API except for <tt>f_readdir</tt> function. The support for LFN is disabled by default. To enable the LFN, set <tt><a href="config.html#use_lfn">FF_USE_LFN</a></tt> to 1, 2 or 3, and add <tt>ffunicode.c</tt> to the project. The LFN requiers a certain working buffer in addition. The buffer size can be configured by <tt><a href="config.html#max_lfn">FF_MAX_LFN</a></tt> according to the available memory. The length of an LFN will be up to 255 characters, so that the <tt>FF_MAX_LFN</tt> should be set to 255 for all file names. If the size of working buffer is insufficient for the input file name, the file function fails with <tt>FR_INVALID_NAME</tt>. When use any re-entry to the API with LFN is enabled, <tt>FF_USE_LFN</tt> must be set to 2 or 3. In this case, the file function allocates the working buffer on the stack or heap. The working buffer occupies <tt>(FF_MAX_LFN + 1) * 2</tt> bytes and additional <tt>(FF_MAX_LFN + 44) / 15 * 32</tt> bytes when exFAT is enabled.</p>
|
||||
<table class="lst2 rset">
|
||||
<caption>With LFN at CM3+gcc</caption>
|
||||
<tr><th><tt>FF_CODE_PAGE</tt></th><th>Increment</th></tr>
|
||||
<tr><td>437-869 (SBCS)</td><td>+3.3k</td></tr>
|
||||
<tr><td>932 (Japanese)</td><td>+62k</td></tr>
|
||||
<tr><td>936 (Simplified Chinese)</td><td>+177k</td></tr>
|
||||
<tr><td>949 (Korean)</td><td>+140k</td></tr>
|
||||
<tr><td>950 (Traditional Chinese)</td><td>+111k</td></tr>
|
||||
<tr><td>0 (All code pages)</td><td>+486k</td></tr>
|
||||
</table>
|
||||
<p>When the LFN is enabled, the module size will be increased depends on the configured code page. Right table shows increment of code size by LFN function at different code pages. Especially, in the CJK region, tens of thousands of characters are being used. Unfortunately, it requires a huge OEM-Unicode bidirectional conversion table and the module size will be drastically increased as shown in the table. As the result, the FatFs with LFN enebled with those code pages will not able to be ported on the most 8-bit MCU systems.</p>
|
||||
<p>There ware some restrictions on using LFN for open source project because the support for LFN on the FAT volume was a patent of Microsoft Corporation. The related patents have expired and using the LFN function have got free for any projects.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="unicode">
|
||||
<h3>Unicode API</h3>
|
||||
<p>By default, FatFs uses ANSI/OEM code set on the API even at LFN configuration. FatFs can also switch the character encoding on the API to Unicode by configuration option <tt><a href="config.html#lfn_unicode">FF_LFN_UNICODE</a></tt>. This means that FatFs supports the full featured LFN specification. The data type <tt>TCHAR</tt> specifies path name strings on the API is an alias of either <tt>char</tt>(ANSI/OEM) or <tt>WCHAR</tt>(UTF-16) depends on that option. For more information, refer to the description in the <a href="filename.html#uni">file name</a>.</p>
|
||||
<p>Note that code page setting, <tt><a href="config.html#code_page">FF_CODE_PAGE</a></tt>, has actually no meaning for the path names at the Unicode API. However it still affects code conversion of string I/O functions at <tt><a href="config.html#strf_encode">FF_STRF_ENCODE = 0</a></tt> and backward compatibility with non-LFN systems, so that code page needs to be set properly when it is considered a problem.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="exfat">
|
||||
<h3>exFAT Filesystem</h3>
|
||||
<p>The exFAT (Microsoft's Extended File Allocation Table) filesystem is a succession of the FAT filesystem which has been widely used in embedded systems, consumer devices and portable storage media. It is adopted by SDA (SD Association) as a recommended filesystem for high capacity SD cards larger than 32 GB and they are being shipped with this format, so that the exFAT became one of the standard filesystems for removable media as well as FAT. The exFAT filesystem allows the file size beyond the 4 GB limit what FAT filesystem allows upto and some filesystem overhead, especially cluster allocation delay, are reduced as well. This feature improves the write throughput to the file.</p>
|
||||
<p>Note that the exFAT is a patent of Microsoft Corporation. The exFAT function of FatFs is an implementation based on <cite>US. Pat. App. Pub. No. 2009/0164440 A1</cite>. FatFs module can swich the support for exFAT on/off by configuration option, <tt><a href="config.html#fs_exfat">FF_FS_EXFAT</a></tt>. When enable the exFAT on the commercial products, a license by Microsoft will be needed depends on the final destination of the products.</p>
|
||||
<p><em>Remark: Enabling exFAT discards ANSI C (C89) compatibility because of need for 64-bit integer type.</em></p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="reentrant">
|
||||
<h3>Re-entrancy</h3>
|
||||
<p>The file operations to the <em>different volumes</em> each other is always re-entrant regardless of configurations except when LFN is enabled with static working buffer. It can work concurrently without any mutual exclusion.</p>
|
||||
<p>The file operations to the <em>same volume</em> is not re-entrant. It can also be configured for thread-safe by option <tt><a href="config.html#fs_reentrant">FF_FS_REENTRANT</a></tt>. In this case, also the OS dependent synchronization object control functions, <tt>ff_cre_syncobj/ff_del_syncobj/ff_req_grant/ff_rel_grant</tt>, need to be added to the project. There are some examples in the <tt>ffsystem.c</tt>. When a file function is called while the volume is being accessed by another task, the file function to the volume will be suspended until that task leaves the file function. If the wait time exceeded a period defined by <tt>FF_TIMEOUT</tt>, the file function will abort with <tt>FR_TIMEOUT</tt>. The timeout function might not be supported on the some RTOSs.</p>
|
||||
<p>There is an exception on the re-entrancy for <tt>f_mount/f_mkfs</tt> function. These volume management functions are not re-entrant to the same volume. When use these functions, other tasks need to avoid to access the volume.</p>
|
||||
<p>Remarks: This section describes on the re-entrancy of the FatFs module itself. The <tt>FF_FS_REENTRANT</tt> option enables only exclusive use of each filesystem objects and FatFs never prevents to re-enter <tt>disk_*()</tt> functions. Thus the low level disk I/O layer must be always thread-safe when FatFs API is re-entered for different volumes.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="dup">
|
||||
<h3>Duplicated File Open</h3>
|
||||
<p>FatFs module does not support the read/write collision control of duplicated open to a file. The duplicated open is permitted only when each of open method to a file is read mode. The duplicated open with one or more write mode to a file is always prohibited, and also open file must not be renamed or deleted. A violation of these rules can cause data colluption.</p>
|
||||
<p>The file lock control can be enabled by <tt><a href="config.html#fs_lock">FF_FS_LOCK</a></tt> option. The value of option defines the number of open objects to manage simultaneously. In this case, if any open, rename or remove that violating the file shareing rule that described above is attempted, the file function will rejected with <tt>FR_LOCKED</tt>. If number of open objects, files and sub-directories, is equal to <tt>FF_FS_LOCK</tt>, an extra <tt>f_open/f_opendir</tt> function will fail with <tt>FR_TOO_MANY_OPEN_FILES</tt>.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="fs1">
|
||||
<h3>Performance Effective File Access</h3>
|
||||
<p>For good read/write throughput on the small embedded systems with limited size of memory, application programmer should consider what process is done in the FatFs module. The file data on the volume is transferred in following sequence by <tt>f_read</tt> function.</p>
|
||||
<p>Figure 1. Sector misaligned read (short)<br>
|
||||
<img src="../res/f1.png" width="490" height="110" alt="">
|
||||
</p>
|
||||
<p>Figure 2. Sector misaligned read (long)<br>
|
||||
<img src="../res/f2.png" width="490" height="140" alt="">
|
||||
</p>
|
||||
<p>Figure 3. Fully sector aligned read<br>
|
||||
<img src="../res/f3.png" width="490" height="119" alt="">
|
||||
</p>
|
||||
<p>The file I/O buffer is a sector buffer to read/write a part of data on the sector. The sector buffer is either file private sector buffer on each file object or shared sector buffer in the filesystem object. The buffer configuration option <tt><a href="config.html#fs_tiny">FF_FS_TINY</a></tt> determins which sector buffer is used for the file data transfer. When tiny buffer configuration (1) is selected, data memory consumption is reduced <tt>FF_MAX_SS</tt> bytes each file object. In this case, FatFs module uses only a sector buffer in the filesystem object for file data transfer and FAT/directory access. The disadvantage of the tiny buffer configuration is: the FAT data cached in the sector buffer will be lost by file data transfer and it must be reloaded at every cluster boundary. However it will be suitable for most application from view point of the decent performance and low memory comsumption.</p>
|
||||
<p>Figure 1 shows that a partial sector, sector misaligned part of the file, is transferred via the file I/O buffer. At long data transfer shown in Figure 2, middle of transfer data that covers one or more sector is transferred to the application buffer directly. Figure 3 shows that the case of entier transfer data is aligned to the sector boundary. In this case, file I/O buffer is not used. On the direct transfer, the maximum extent of sectors are read with <tt>disk_read</tt> function at a time but the multiple sector transfer is divided at cluster boundary even if it is contiguous.</p>
|
||||
<p>Therefore taking effort to sector aligned read/write accesss eliminates buffered data transfer and the read/write performance will be improved. Besides the effect, cached FAT data will not be flushed by file data transfer at the tiny configuration, so that it can achieve same performance as non-tiny configuration with small memory footprint.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="fs2">
|
||||
<h3>Considerations on Flash Memory Media</h3>
|
||||
<p>To maximize the write performance of flash memory media, such as SDC, CFC and U Disk, it must be controlled in consideration of its characteristitcs.</p>
|
||||
<h4>Using Mutiple-Sector Write</h4>
|
||||
<div class="rset">
|
||||
Figure 6. Comparison between Multiple/Single Sector Write<br>
|
||||
<img src="../res/f6.png" width="630" height="148" alt="fig.6">
|
||||
</div>
|
||||
<p>The write throughput of the flash memory media becomes the worst at single sector write transaction. The write throughput increases as the number of sectors per a write transaction as shown in Figure 6. This effect more appers at faster interface speed and the performance ratio often becomes grater than ten. <a href="../res/rwtest2.png">This graph</a> is clearly explaining how fast is multiple block write (W:16K, 32 sectors) than single block write (W:100, 1 sector), and also larger card tends to be slow at single block write. Number of write transactions also affects life time of the flash memory media. When compared at same amount of write data, the single sector write in Figure 6 above wears flash memory media 16 times more than multiple sector write in Figure 6 below. Single sector write is pretty pain for the flash memory media.</p>
|
||||
<p>Therefore the application program should write the data in large block as possible. The ideal write chunk size and alighment is size of sector, and size of cluster is the best. Of course all layers between the application and the storage device must have consideration on multiple sector write, however most of open-source memory card drivers lack it. Do not split a multiple sector write request into single sector write transactions or the write throughput gets poor. Note that FatFs module and its sample disk drivers supprt multiple sector read/write operation. </p>
|
||||
<h4>Forcing Memory Erase</h4>
|
||||
<p>When remove a file with <tt>f_unlink</tt> function, the data clusters occupied by the file are marked 'free' on the FAT. But the data sectors containing the file data are not that applied any process, so that the file data left occupies a part of the flash memory array as 'live block'. If the file data can be erased on removing the file, those data blocks will be turned into the free block pool. This may skip internal block erase operation to the data block on next write operation. As the result the write performance might be improved. FatFs can manage this function by setting <tt><a href="config.html#use_trim">FF_USE_TRIM</a></tt> to 1. Note that this is an expectation of internal process of the storage device and not that always effective. Most applications will not need this function. Also <tt>f_unlink</tt> function can take a time when remove a large file.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="critical">
|
||||
<h3>Critical Section</h3>
|
||||
<p>If a write operation to the FAT volume is interrupted due to an accidental failure, such as sudden blackout, incorrect media removal and unrecoverable disk error, the FAT structure on the volume can be broken. Following images shows the critical section of the FatFs module.</p>
|
||||
<div class="lset">
|
||||
Figure 4. Long critical section<br>
|
||||
<img src="../res/f4.png" width="320" height="436" alt="fig.4">
|
||||
</div>
|
||||
<div class="lset">
|
||||
Figure 5. Minimized critical section<br>
|
||||
<img src="../res/f5.png" width="320" height="436" alt="fig.5">
|
||||
</div>
|
||||
<br class="clr">
|
||||
<p>An interruption in the red section can cause a cross link; as a result, the object being changed can be lost. If an interruption in the yellow section is occured, there is one or more possibility listed below.</p>
|
||||
<ul>
|
||||
<li>The file data being rewrited is collapsed.</li>
|
||||
<li>The file being appended returns initial state.</li>
|
||||
<li>The file created as new is gone.</li>
|
||||
<li>The file created as new or overwritten remains but no content.</li>
|
||||
<li>Efficiency of disk use gets worse due to lost clusters.</li>
|
||||
</ul>
|
||||
<p>Each case does not affect any file not opened in write mode. To minimize risk of data loss, the critical section can be minimized by minimizing the time that file is opened in write mode or using <tt>f_sync</tt> function as shown in Figure 5.</p>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="fs3">
|
||||
<h3>Extended Use of FatFs API</h3>
|
||||
<p>These are examples of extended use of FatFs APIs. New item will be added whenever a useful code is found.</p>
|
||||
<ol>
|
||||
<li><a href="../res/app1.c">Open or create a file for append</a> (for only R0.12 and earlier)</li>
|
||||
<li><a href="../res/app2.c">Empty a directory</a></li>
|
||||
<li><a href="../res/app3.c">Allocate contiguous area to the file</a> (for only R0.11a and earlier)</li>
|
||||
<li><a href="../res/app4.c">Compatibility checker for low level disk I/O module</a></li>
|
||||
<li><a href="../res/mkfatimg.zip">FAT image creator</a></li>
|
||||
</ol>
|
||||
</div>
|
||||
|
||||
<div class="para doc" id="license">
|
||||
<h3>About FatFs License</h3>
|
||||
<p>FatFs has being developped as a personal project of the author, ChaN. It is free from the code anyone else wrote at current release. Following code block shows a copy of the FatFs license document that included in the source files.</p>
|
||||
<pre>
|
||||
/*----------------------------------------------------------------------------/
|
||||
/ FatFs - Generic FAT Filesystem Module Rx.xx /
|
||||
/-----------------------------------------------------------------------------/
|
||||
/
|
||||
/ Copyright (C) 20xx, ChaN, all right reserved.
|
||||
/
|
||||
/ FatFs module is an open source software. Redistribution and use of FatFs in
|
||||
/ source and binary forms, with or without modification, are permitted provided
|
||||
/ that the following condition is met:
|
||||
/
|
||||
/ 1. Redistributions of source code must retain the above copyright notice,
|
||||
/ this condition and the following disclaimer.
|
||||
/
|
||||
/ This software is provided by the copyright holder and contributors "AS IS"
|
||||
/ and any warranties related to this software are DISCLAIMED.
|
||||
/ The copyright owner or contributors be NOT LIABLE for any damages caused
|
||||
/ by use of this software.
|
||||
/----------------------------------------------------------------------------*/
|
||||
</pre>
|
||||
<p>Therefore FatFs license is one of the BSD-style licenses but there is a significant feature. FatFs is mainly intended for embedded systems. In order to extend the usability for commercial products, the redistributions of FatFs in binary form, such as embedded code, binary library and any forms without source code, does not need to include about FatFs in the documentations. This is equivalent to the 1-clause BSD license. Of course FatFs is compatible with the most of open source software licenses including GNU GPL. When you redistribute the FatFs source code with any changes or create a fork, the license can also be changed to GNU GPL, BSD-style license or any open source software license that not conflict with FatFs license.</p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return Home</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -25,7 +25,7 @@ FRESULT f_chdir (
|
|||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>path</dt>
|
||||
<dd>Pointer to the null-terminated string that specifies a <a href="filename.html">directory</a> to go.</dd>
|
||||
<dd>Pointer to the null-terminated string that specifies the <a href="filename.html">directory</a> to go.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
|
@ -50,24 +50,24 @@ FRESULT f_chdir (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_chdir()</tt> function changes the current directory of the logical drive. The current directory of a drive is initialized to the root directory when the drive is auto-mounted. Note that the current directory is retained in the each file system object so that it also affects other tasks that using the volume.</p>
|
||||
<p>The <tt>f_chdir</tt> function changes the current directory of the logical drive. The current directory of a drive is set to the root directory when the drive is mounted. Note that the current directory is retained in the each file system object, so that it also affects other tasks that use the volume.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_RPATH >= 1</tt>.</p>
|
||||
<p>Available when <tt>FF_FS_RPATH >= 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<span class="c">/* Change current direcoty of the current drive (dir1 under root dir) */</span>
|
||||
f_chdir("/dir1");
|
||||
<span class="c">/* Change current direcoty of the current drive ('dir1' under root directory) */</span>
|
||||
<em>f_chdir</em>("/dir1");
|
||||
|
||||
<span class="c">/* Change current direcoty of drive 2 (parent dir) */</span>
|
||||
f_chdir("2:..");
|
||||
<span class="c">/* Change current direcoty of drive 2 (parent directory) */</span>
|
||||
<em>f_chdir</em>("2:..");
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
|
@ -41,12 +41,23 @@ FRESULT f_chdrive (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_chdrive()</tt> function changes the current drive. The initial value of the current drive number is 0. Note that the current drive is retained in a static variable so that it also affects other tasks that using the file functions.</p>
|
||||
<p>The <tt>f_chdrive</tt> function changes the current drive. The initial value of the current drive number is 0. Note that the current drive is retained in a static variable so that it also affects other tasks that using the file functions.</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_RPATH >= 1</tt> and <tt>_VOLUMES >= 2</tt>.</p>
|
||||
<p>Available when <tt>FF_FS_RPATH >= 1</tt> and <tt>FF_VOLUMES >= 2</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<em>f_chdrive</em>("2:"); <span class="c">/* Set current drive to drive 2 */</span>
|
||||
|
||||
<em>f_chdrive</em>(""); <span class="c">/* No effect (set current drive to current drive) */</span>
|
||||
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
|
|
@ -66,21 +66,21 @@ FRESULT f_chmod (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_chmod()</tt> function changes the attribute of a file or sub-directory.</p>
|
||||
<p>The <tt>f_chmod</tt> function changes the attribute of a file or sub-directory.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_READONLY == 0</tt> and <tt>_FS_MINIMIZE == 0</tt>.</p>
|
||||
<p>Available when <tt>FF_FS_READONLY == 0</tt> and <tt>FF_USE_CHMOD == 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<span class="c">/* Set read-only flag, clear archive flag and others are left unchanged. */</span>
|
||||
f_chmod("file.txt", AR_RDO, AR_RDO | AR_ARC);
|
||||
<span class="c">/* Set Read-only, clear Archive and others are left unchanged. */</span>
|
||||
<em>f_chmod</em>("file.txt", AM_RDO, AM_RDO | AM_ARC);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
|
@ -36,7 +36,6 @@ FRESULT f_close (
|
|||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#nr">FR_NOT_READY</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
|
|
@ -45,8 +44,8 @@ FRESULT f_close (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_close()</tt> function closes an open file object. If any data has been written to the file, the cached information of the file is written back to the volume. After the function succeeded, the file object is no longer valid and it can be discarded.</p>
|
||||
<p>Note that if the file object is in read-only mode and <tt>_FS_LOCK</tt> option is not enabled, the file object can also be discarded without this process. However this is not recommended for future compatibility.</p>
|
||||
<p>The <tt>f_close</tt> function closes an open file object. If the file has been changed, the cached information of the file is written back to the volume. After the function succeeded, the file object is no longer valid and it can be discarded.</p>
|
||||
<p>Note that if the file object is in read-only mode and <tt>FF_FS_LOCK</tt> is not enabled, the file object can also be discarded without this procedure. However this is not recommended for future compatibility.</p>
|
||||
</div>
|
||||
|
||||
|
||||
|
|
@ -43,14 +43,14 @@ FRESULT f_closedir (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_closedir()</tt> function closes an open directory object. After the function succeeded, the directory object is no longer valid and it can be discarded.</p>
|
||||
<p>Note that the directory object can also be discarded without this process if <tt>_FS_LOCK</tt> option is not enabled. However this is not recommended for future compatibility.</p>
|
||||
<p>The <tt>f_closedir</tt> function closes an open directory object. After the function succeeded, the directory object is no longer valid and it can be discarded.</p>
|
||||
<p>Note that the directory object can also be discarded without this procedure when option <tt>FF_FS_LOCK</tt> is not enabled. However this is not recommended for future compatibility.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>_FS_MINIMIZE <= 1</tt>.</p>
|
||||
<p>Available when <tt>FF_FS_MINIMIZE <= 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
253
3rdparty/fatfs-0.13/documents/doc/config.html
vendored
Normal file
253
3rdparty/fatfs-0.13/documents/doc/config.html
vendored
Normal file
|
|
@ -0,0 +1,253 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/config.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - Configuration Options</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<h1>Configuration Options</h1>
|
||||
<p>There are many options to configure the functions of FatFs for requirement of each project. The configuration options are defined in the <em><tt>ffconf.h</tt></em>.</p>
|
||||
<ul>
|
||||
<li>Function Configurations
|
||||
<ul>
|
||||
<li><a href="#fs_readonly">FF_FS_READONLY</a></li>
|
||||
<li><a href="#fs_minimize">FF_FS_MINIMIZE</a></li>
|
||||
<li><a href="#use_strfunc">FF_USE_STRFUNC</a></li>
|
||||
<li><a href="#use_find">FF_USE_FIND</a></li>
|
||||
<li><a href="#use_mkfs">FF_USE_MKFS</a></li>
|
||||
<li><a href="#use_fastseek">FF_USE_FASTSEEK</a></li>
|
||||
<li><a href="#use_expand">FF_USE_EXPAND</a></li>
|
||||
<li><a href="#use_chmod">FF_USE_CHMOD</a></li>
|
||||
<li><a href="#use_label">FF_USE_LABEL</a></li>
|
||||
<li><a href="#use_forward">FF_USE_FORWARD</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Namespace and Locale Configurations
|
||||
<ul>
|
||||
<li><a href="#code_page">FF_CODE_PAGE</a></li>
|
||||
<li><a href="#use_lfn">FF_USE_LFN</a></li>
|
||||
<li><a href="#max_lfn">FF_MAX_LFN</a></li>
|
||||
<li><a href="#lfn_unicode">FF_LFN_UNICODE</a></li>
|
||||
<li><a href="#strf_encode">FF_STRF_ENCODE</a></li>
|
||||
<li><a href="#fs_rpath">FF_FS_RPATH</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Volume/Drive Configurations
|
||||
<ul>
|
||||
<li><a href="#volumes">FF_VOLUMES</a></li>
|
||||
<li><a href="#str_volume_id">FF_STR_VOLUME_ID</a></li>
|
||||
<li><a href="#volume_strs">FF_VOLUME_STRS</a></li>
|
||||
<li><a href="#multi_partition">FF_MULTI_PARTITION</a></li>
|
||||
<li><a href="#max_ss">FF_MIN_SS, FF_MAX_SS</a></li>
|
||||
<li><a href="#use_trim">FF_USE_TRIM</a></li>
|
||||
<li><a href="#fs_nofsinfo">FF_FS_NOFSINFO</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>System Configurations
|
||||
<ul>
|
||||
<li><a href="#fs_tiny">FF_FS_TINY</a></li>
|
||||
<li><a href="#fs_exfat">FF_FS_EXFAT</a></li>
|
||||
<li><a href="#fs_nortc">FF_FS_NORTC</a></li>
|
||||
<li><a href="#nortc_time">FF_NORTC_MON, FF_NORTC_MDAY, FF_NORTC_YEAR</a></li>
|
||||
<li><a href="#fs_lock">FF_FS_LOCK</a></li>
|
||||
<li><a href="#fs_reentrant">FF_FS_REENTRANT</a></li>
|
||||
<li><a href="#fs_timeout">FF_FS_TIMEOUT</a></li>
|
||||
<li><a href="#sync_t">FF_SYNC_t</a></li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
<div class="para doc" id="func">
|
||||
<h3>Function Configurations</h3>
|
||||
|
||||
<h4 id="fs_readonly">FF_FS_READONLY</h4>
|
||||
<p>Read/Write (0) or Read-only (1). Read-only configuration removes writing API functions, <tt>f_write</tt>, <tt>f_sync</tt>, <tt>f_unlink</tt>, <tt>f_mkdir</tt>, <tt>f_chmod</tt>, <tt>f_rename</tt>, <tt>f_truncate</tt>, <tt>f_getfree</tt> and optional writing functions as well.</p>
|
||||
|
||||
<h4 id="fs_minimize">FF_FS_MINIMIZE</h4>
|
||||
<p>This option defines minimization level to remove some basic API functions as follows:</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>All basic API functions are available.</td></tr>
|
||||
<tr><td>1</td><td><tt>f_stat</tt>, <tt>f_getfree</tt>, <tt>f_unlink</tt>, <tt>f_mkdir</tt>, <tt>f_chmod</tt>, <tt>f_utime</tt>, <tt>f_truncate</tt> and <tt>f_rename</tt> function are removed.</td></tr>
|
||||
<tr><td>2</td><td><tt>f_opendir</tt>, <tt>f_readdir</tt> and <tt>f_closedir</tt> function are removed in addition to 1.</td></tr>
|
||||
<tr><td>3</td><td><tt>f_lseek</tt> function is removed in addition to 2.</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="use_strfunc">FF_USE_STRFUNC</h4>
|
||||
<p>This option switches string functions, <tt>f_gets</tt>, <tt>f_putc</tt>, <tt>f_puts</tt> and <tt>f_printf</tt>.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>Disable string functions.</td></tr>
|
||||
<tr><td>1</td><td>Enable string functions without LF-CRLF conversion.</td></tr>
|
||||
<tr><td>2</td><td>Enable string functions with LF-CRLF conversion.</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="use_find">FF_USE_FIND</h4>
|
||||
<p>Disable (0) or Enable (1) filtered directory read functions, <tt>f_findfirst</tt> and <tt>f_findnext</tt>. Also <tt>FF_FS_MINIMIZE</tt> needs to be 0 or 1.</p>
|
||||
|
||||
<h4 id="use_mkfs">FF_USE_MKFS</h4>
|
||||
<p>Disable (0) or Enable (1) <tt>f_mkfs</tt> function.</p>
|
||||
|
||||
<h4 id="use_fastseek">FF_USE_FASTSEEK</h4>
|
||||
<p>Disable (0) or Enable (1) fast seek function to enable accelerated mode for <tt>f_lseek</tt>, <tt>f_read</tt> and <tt>f_write</tt> function. For more information, read <a href="lseek.html">here</a>.</p>
|
||||
|
||||
<h4 id="use_expand">FF_USE_EXPAND</h4>
|
||||
<p>Disable (0) or Enable (1) <tt>f_expand</tt> function.</p>
|
||||
|
||||
<h4 id="use_chmod">FF_USE_CHMOD</h4>
|
||||
<p>Disable (0) or Enable (1) metadata control functions, <tt>f_chmod</tt> and <tt>f_utime</tt>. Also <tt>FF_FS_READONLY</tt> needs to be 0.</p>
|
||||
|
||||
<h4 id="use_label">FF_USE_LABEL</h4>
|
||||
<p>Disable (0) or Enable (1) API functions for volume label, <tt>f_getlabel</tt> and <tt>f_setlabel</tt>.</p>
|
||||
|
||||
<h4 id="use_forward">FF_USE_FORWARD</h4>
|
||||
<p>Disable (0) or Enable (1) <tt>f_forward</tt> function.</p>
|
||||
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para doc" id="name">
|
||||
<h3>Namespace and Locale Configurations</h3>
|
||||
|
||||
<h4 id="code_page">FF_CODE_PAGE</h4>
|
||||
<p>This option specifies the OEM code page to be used on the target system. Incorrect setting of the code page can cause a file open failure. If any non-ASCII character is not used at all, there is no difference between any code pages.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Code page</th></tr>
|
||||
<tr><td>0</td><td>Include all code pages below and set by <tt>f_setcp()</tt></td></tr>
|
||||
<tr><td>437</td><td>U.S.</td></tr>
|
||||
<tr><td>720</td><td>Arabic</td></tr>
|
||||
<tr><td>737</td><td>Greek</td></tr>
|
||||
<tr><td>771</td><td>KBL</td></tr>
|
||||
<tr><td>775</td><td>Baltic</td></tr>
|
||||
<tr><td>850</td><td>Latin 1</td></tr>
|
||||
<tr><td>852</td><td>Latin 2</td></tr>
|
||||
<tr><td>855</td><td>Cyrillic</td></tr>
|
||||
<tr><td>857</td><td>Turkish</td></tr>
|
||||
<tr><td>860</td><td>Portuguese</td></tr>
|
||||
<tr><td>861</td><td>Icelandic</td></tr>
|
||||
<tr><td>862</td><td>Hebrew</td></tr>
|
||||
<tr><td>863</td><td>Canadian French</td></tr>
|
||||
<tr><td>864</td><td>Arabic</td></tr>
|
||||
<tr><td>865</td><td>Nordic</td></tr>
|
||||
<tr><td>866</td><td>Russian</td></tr>
|
||||
<tr><td>869</td><td>Greek 2</td></tr>
|
||||
<tr><td>932</td><td>Japanese (DBCS)</td></tr>
|
||||
<tr><td>936</td><td>Simplified Chinese (DBCS)</td></tr>
|
||||
<tr><td>949</td><td>Korean (DBCS)</td></tr>
|
||||
<tr><td>950</td><td>Traditional Chinese (DBCS)</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="use_lfn">FF_USE_LFN</h4>
|
||||
<p>This option switches the support for long file name (LFN). When enable the LFN, Unicode support functions <tt>ffunicode.c</tt> need to be added to the project. The working buffer for LFN occupies <tt>(FF_MAX_LFN + 1) * 2</tt> bytes and additional <tt>((FF_MAX_LFN + 44) / 15 * 32</tt> bytes when exFAT enabled. When use stack for the working buffer, take care on stack overflow. When use heap memory for the working buffer, memory management functions, <tt>ff_memalloc</tt> and <tt>ff_memfree</tt>, need to be added to the project.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>Disable LFN. Path name in only 8.3 format can be used.</td></tr>
|
||||
<tr><td>1</td><td>Enable LFN with static working buffer on the BSS. Always NOT thread-safe.</td></tr>
|
||||
<tr><td>2</td><td>Enable LFN with dynamic working buffer on the STACK.</td></tr>
|
||||
<tr><td>3</td><td>Enable LFN with dynamic working buffer on the HEAP.</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="max_lfn">FF_MAX_LFN</h4>
|
||||
<p>This option defines the size of LFN working buffer from 12 to 255 in unit of character. This option has no effect when LFN is disabled.</p>
|
||||
|
||||
<h4 id="lfn_unicode">FF_LFN_UNICODE</h4>
|
||||
<p>This option switches character encoding on the API, ANSI/OEM (0) or Unicode in UTF-16 (1). To use Unicode string for the path name, enable LFN and set this option to 1. This option also affects behavior of string I/O functions. When LFN is disabled, this option has no effect. For more information, read <a href="filename.html#uni">here</a>.</p>
|
||||
|
||||
<h4 id="strf_encode">FF_STRF_ENCODE</h4>
|
||||
<p>When Unicode API is selected by <tt>FF_LFN_UNICODE = 1</tt>, string I/O functions, <tt>f_gets</tt>, <tt>f_putc</tt>, <tt>f_puts</tt> and <tt>f_printf</tt> convert the character encodins in it. This option defines the assumption of character encoding <em>on the file</em> to be read/written via those functions. When Unicode API is not selected, the string functions work without any conversion and this option has no effect.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>ANSI/OEM</td></tr>
|
||||
<tr><td>1</td><td>UTF-16LE</td></tr>
|
||||
<tr><td>2</td><td>UTF-16BE</td></tr>
|
||||
<tr><td>3</td><td>UTF-8</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="fs_rpath">FF_FS_RPATH</h4>
|
||||
<p>This option configures relative path function. For more information, read <a href="filename.html#nam">here</a>.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>Disable relative path function and remove related functions.</td></tr>
|
||||
<tr><td>1</td><td>Enable relative path function. <tt>f_chdir</tt> and <tt>f_chdrive</tt> function is available.</td></tr>
|
||||
<tr><td>2</td><td><tt>f_getcwd</tt> function is available in addition to 1</td></tr>
|
||||
</table>
|
||||
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para doc" id="volume">
|
||||
<h3>Volume/Drive Configurations</h3>
|
||||
|
||||
<h4 id="volumes">FF_VOLUMES</h4>
|
||||
<p>This option configures number of volumes (logical drives, from 1 to 10) to be used.</p>
|
||||
|
||||
<h4 id="str_volume_id">FF_STR_VOLUME_ID</h4>
|
||||
<p>Disable (0) or Enable (1). This option switches the support for string volume ID. When enabled, also pre-defined strings in <tt>FF_VOLUME_STRS</tt> can be used as drive identifier in the path name.</p>
|
||||
|
||||
<h4 id="volume_strs">FF_VOLUME_STRS</h4>
|
||||
<p>This option defines the drive ID strings for each logical drives. Number of items must not be less than <tt>FF_VOLUMES</tt>. Valid characters for the drive ID string are: A-Z and 0-9.</p>
|
||||
|
||||
<h4 id="multi_partition">FF_MULTI_PARTITION</h4>
|
||||
<p>Disable (0) or Enable (1). This option switches multi-partition function. By default (0), each logical drive number is bound to the same physical drive number and only a volume in the physical drive is mounted. When enabled, each logical drive is bound to the partition on the physical drive listed in the user defined partition resolution table <tt>VolToPart[]</tt>. Also <tt>f_fdisk</tt> funciton will be available. For more information, read <a href="filename.html#vol">here</a>.</p>
|
||||
|
||||
<h4 id="max_ss">FF_MIN_SS, FF_MAX_SS</h4>
|
||||
<p>This set of options defines the extent of sector size used on the low level disk I/O interface, <tt>disk_read</tt> and <tt>disk_write</tt> function. Valid values are 512, 1024, 2048 and 4096. <tt>FF_MIN_SS</tt> defines minimum sector size and <tt>FF_MAX_SS</tt> defines the maximum sector size. Always set both 512 for memory card and harddisk. But a larger value may be required for on-board flash memory and some type of optical media. When <tt>FF_MAX_SS > FF_MIN_SS</tt>, support of variable sector size is enabled and <tt>GET_SECTOR_SIZE</tt> command needs to be implemented to the <tt>disk_ioctl</tt> function.</p>
|
||||
|
||||
<h4 id="use_trim">FF_USE_TRIM</h4>
|
||||
<p>Disable (0) or Enable (1). This option switches ATA-TRIM function. To enable Trim function, also <tt>CTRL_TRIM</tt> command should be implemented to the <tt>disk_ioctl</tt> function.</p>
|
||||
|
||||
<h4 id="fs_nofsinfo">FF_FS_NOFSINFO</h4>
|
||||
<p>0 to 3. If you need to know correct free space on the FAT32 volume, set bit 0 of this option, and <tt>f_getfree</tt> function at first time after volume mount will force a full FAT scan. Bit 1 controls the use of last allocated cluster number.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>bit0=0</td><td>Use free cluster count in the FSINFO if available.</td></tr>
|
||||
<tr><td>bit0=1</td><td>Do not trust free cluster count in the FSINFO.</td></tr>
|
||||
<tr><td>bit1=0</td><td>Use last allocated cluster number in the FSINFO to find a free cluster if available.</td></tr>
|
||||
<tr><td>bit1=1</td><td>Do not trust last allocated cluster number in the FSINFO.</td></tr>
|
||||
</table>
|
||||
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para doc" id="system">
|
||||
<h3>System Configurations</h3>
|
||||
|
||||
<h4 id="fs_tiny">FF_FS_TINY</h4>
|
||||
<p>Normal (0) or Tiny (1). At the tiny configuration, size of the file object <tt>FIL</tt> is reduced <tt>FF_MAX_SS</tt> bytes. Instead of private data buffer eliminated from the file object, common sector buffer in the filesystem object <tt>FATFS</tt> is used for the file data transfer.</p>
|
||||
|
||||
<h4 id="fs_exfat">FF_FS_EXFAT</h4>
|
||||
<p>This option switches support for the exFAT filesystem in addition to the FAT/FAT32 filesystem, Enabled(1) or Disabled(0). To enable this feature, also LFN must be enabled and configureing <tt>FF_LFN_UNICODE = 1</tt> and <tt>FF_MAX_LFN = 255</tt> is recommended for full-featured exFAT function. Note that enabling exFAT discards ANSI C (C89) compatibility because of need for 64-bit integer type.</p>
|
||||
|
||||
<h4 id="fs_nortc">FF_FS_NORTC</h4>
|
||||
<p>Use RTC (0) or Do not use RTC (1). This option controls timestamp function. If the system does not have an RTC function or valid timestamp is not needed, set <tt>FF_FS_NORTC</tt> to 1 to disable the timestamp function. Any object modified by FatFs will have a fixed timestamp defined by <tt>FF_NORTC_MON</tt>, <tt>FF_NORTC_MDAY</tt> and <tt>FF_NORTC_YEAR</tt>. To use the timestamp function, set <tt>FF_FS_NORTC = 0</tt> and add <tt>get_fattime</tt> function to the project to get the current time form real-time clock. This option has no effect at read-only configuration.</p>
|
||||
|
||||
<h4 id="nortc_time">FF_NORTC_MON, FF_NORTC_MDAY, FF_NORTC_YEAR</h4>
|
||||
<p>This set of options defines the time to be used at no RTC systems. This option has no effect at read-only configuration or <tt>FF_FS_NORTC = 0</tt>.</p>
|
||||
|
||||
<h4 id="fs_lock">FF_FS_LOCK</h4>
|
||||
<p>This option switches file lock function to control duplicated file open and illegal operations to open objects. Note that the file lock function is independent of re-entrancy. This option must be 0 at read-only configuration.</p>
|
||||
<table class="lst1">
|
||||
<tr><th>Value</th><th>Description</th></tr>
|
||||
<tr><td>0</td><td>Disable file lock function. To avoid collapsing file by wrong file operation, application program needs to avoid illegal open, remove and rename to the open objects.</td></tr>
|
||||
<tr><td>>0</td><td>Enable file lock function. The value defines how many files/sub-directories can be opened simultaneously under the file lock control. Illigal operations to the open object will be rejected with <tt>FR_LOCKED</tt>.</td></tr>
|
||||
</table>
|
||||
|
||||
<h4 id="fs_reentrant">FF_FS_REENTRANT</h4>
|
||||
<p>Disable (0) or Enable (1). This option switches the re-entrancy (thread safe) of the FatFs module itself. Note that file/directory access to the different volume is always re-entrant and it can work simultaneously regardless of this option but volume control functions. <tt>f_mount</tt>, <tt>f_mkfs</tt> and <tt>f_fdisk</tt>, are always not re-entrant. Only file/directory access to the same volume, in other words, exclusive use of each filesystem object, is under control of this function. To enable this feature, also user provided synchronization handlers, <tt>ff_req_grant</tt>, <tt>ff_rel_grant</tt>, <tt>ff_del_syncobj</tt> and <tt>ff_cre_syncobj</tt>, need to be added to the project. Sample code is available in <tt>ffsystem.c</tt>.</p>
|
||||
|
||||
<h4 id="fs_timeout">FF_FS_TIMEOUT</h4>
|
||||
<p>Number of time ticks to abort the file function with <tt>FR_TIMEOUT</tt> when wait time is too long. This option has no effect when <tt>FF_FS_REENTRANT = 0</tt>.</p>
|
||||
|
||||
<h4 id="sync_t">FF_SYNC_t</h4>
|
||||
<p>This option defines O/S dependent sync object type. e.g. <tt>HANDLE</tt>, <tt>ID</tt>, <tt>OS_EVENT*</tt>, <tt>SemaphoreHandle_t</tt> and etc. A header file for O/S definitions needs to be included somewhere in the scope of <tt>ff.c</tt>. This option has no effect when <tt>FF_FS_REENTRANT = 0</tt>.</p>
|
||||
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
|
||||
<div class="para func">
|
||||
<h2>disk_initialize</h2>
|
||||
<p>The disk_initialize function initializes the storage device.</p>
|
||||
<p>The disk_initialize function is called to initializes the storage device.</p>
|
||||
<pre>
|
||||
DSTATUS disk_initialize (
|
||||
BYTE <span class="arg">pdrv</span> <span class="c">/* [IN] Physical drive number */</span>
|
||||
|
|
@ -25,20 +25,20 @@ DSTATUS disk_initialize (
|
|||
<h4>Parameter</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>Physical drive number to identify the target device.</dd>
|
||||
<dd>Physical drive number to identify the target device. Always zero at single drive system.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>This function returns a disk status as the result. For details of the disk status, refer to the <a href="dstat.html">disk_status()</a> function.</p>
|
||||
<p>This function returns the current drive status flags as the result. For details of the drive status, refer to the <a href="dstat.html">disk_status</a> function.</p>
|
||||
</div>
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>This function initializes a storage device and put it ready to generic read/write data. When the function succeeded, <tt>STA_NOINIT</tt> flag in the return value is cleared.</p>
|
||||
<p><em>Application program MUST NOT call this function, or FAT structure on the volume can be broken. To re-initialize the file system, use <tt>f_mount()</tt> function instead.</em> This function is called at volume mount process by FatFs module to manage the media change.</p>
|
||||
<p>This function initializes the storage device and put it ready to generic read/write. When the function succeeded, <tt>STA_NOINIT</tt> flag in the return value is cleared.</p>
|
||||
<p><em>Remarks: This function needs to be under control of FatFs module. Application program MUST NOT call this function, or FAT structure on the volume can be broken. To re-initialize the filesystem, use <tt>f_mount</tt> function instead.</em></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
|
||||
<div class="para func">
|
||||
<h2>disk_ioctl</h2>
|
||||
<p>The disk_ioctl function cntrols device specific features and miscellaneous functions other than generic read/write.</p>
|
||||
<p>The disk_ioctl function is called to control device specific features and miscellaneous functions other than generic read/write.</p>
|
||||
<pre>
|
||||
DRESULT disk_ioctl (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] Drive number */</span>
|
||||
|
|
@ -57,20 +57,20 @@ DRESULT disk_ioctl (
|
|||
<table class="lst">
|
||||
<caption>Standard ioctl command used by FatFs</caption>
|
||||
<tr><th>Command</th><th>Description</th></tr>
|
||||
<tr><td>CTRL_SYNC</td><td>Make sure that the device has finished pending write process. If the disk I/O module has a write back cache, the dirty buffers must be written back to the media immediately. Nothing to do for this command if each write operation to the media is completed within the <tt>disk_write()</tt> function. Required at <tt>_FS_READONLY == 0</tt>.</td></tr>
|
||||
<tr><td>GET_SECTOR_COUNT</td><td>Returns number of available sectors on the drive into the <tt>DWORD</tt> variable pointed by <tt class="arg">buff</tt>. This command is used by only <tt>f_mkfs()</tt> and <tt>f_fdisk()</tt> function to determine the volume/partition size to be created. Required at <tt>_USE_MKFS == 1</tt> or <tt>_MULTI_PARTITION == 1</tt>.</td></tr>
|
||||
<tr><td>GET_SECTOR_SIZE</td><td>Returns sector size of the media into the <tt>WORD</tt> variable pointed by <tt class="arg">buff</tt>. Valid return values of this command are 512, 1024, 2048 or 4096. This command is required at variable sector size configuration, <tt>_MAX_SS > _MIN_SS</tt>. Never used at fixed sector size configuration, <tt>_MAX_SS == _MIN_SS</tt>, and it must work at that sector size.</td></tr>
|
||||
<tr><td>GET_BLOCK_SIZE</td><td>Returns erase block size of the flash memory in unit of sector into the <tt>DWORD</tt> variable pointed by <tt class="arg">buff</tt>. The allowable value is from 1 to 32768 in power of 2. Return 1 if the erase block size is unknown or disk media. This command is used by only <tt>f_mkfs()</tt> function and it attempts to align data area to the erase block boundary. Required at <tt>_USE_MKFS == 1</tt>.</td></tr>
|
||||
<tr><td>CTRL_ERASE_SECTOR</td><td>Informs device that the data on the block of sectors specified by a <tt>DWORD</tt> array {<start sector>, <end sector>} pointed by <tt class="arg">buff</tt> is no longer needed and may be erased. The device would force erased the memory block. This is a command similar to Trim command of ATA device. When this feature is not supported or not a flash memory media, nothing to do for this command. The FatFs does not check the result code and the file function is not affected even if the sectors ware not erased well. This command is called on removing a cluster chain and <tt>f_mkfs()</tt> function. Required at <tt>_USE_ERASE == 1</tt>.</td></tr>
|
||||
<tr><td>CTRL_SYNC</td><td>Make sure that the device has finished pending write process. If the disk I/O module has a write back cache, the dirty buffers must be written back to the media immediately. Nothing to do for this command if each write operation to the media is completed within the <tt>disk_write</tt> function.</td></tr>
|
||||
<tr><td>GET_SECTOR_COUNT</td><td>Returns number of available sectors on the drive into the <tt>DWORD</tt> variable pointed by <tt class="arg">buff</tt>. This command is used in only <tt>f_mkfs</tt> and <tt>f_fdisk</tt> function to determine the volume/partition size to be created. Required at <tt>FF_USE_MKFS == 1</tt> or <tt>FF_MULTI_PARTITION == 1</tt>.</td></tr>
|
||||
<tr><td>GET_SECTOR_SIZE</td><td>Returns sector size of the device into the <tt>WORD</tt> variable pointed by <tt class="arg">buff</tt>. Valid return values for this command are 512, 1024, 2048 and 4096. This command is required only if <tt>FF_MAX_SS > FF_MIN_SS</tt>. When <tt>FF_MAX_SS == FF_MIN_SS</tt>, this command is never used and the device must work at that sector size.</td></tr>
|
||||
<tr><td>GET_BLOCK_SIZE</td><td>Returns erase block size of the flash memory media in unit of sector into the <tt>DWORD</tt> variable pointed by <tt class="arg">buff</tt>. The allowable value is from 1 to 32768 in power of 2. Return 1 if the erase block size is unknown or non flash memory media. This command is used by only <tt>f_mkfs</tt> function and it attempts to align data area on the erase block boundary. Required at <tt>FF_USE_MKFS == 1</tt>.</td></tr>
|
||||
<tr><td>CTRL_TRIM</td><td>Informs the device the data on the block of sectors is no longer needed and it can be erased. The sector block is specified by a <tt>DWORD</tt> array {<start sector>, <end sector>} pointed by <tt class="arg">buff</tt>. This is an identical command to Trim of ATA device. Nothing to do for this command if this funcion is not supported or not a flash memory device. FatFs does not check the result code and the file function is not affected even if the sector block was not erased well. This command is called on remove a cluster chain and in the <tt>f_mkfs</tt> function. Required at <tt>FF_USE_TRIM == 1</tt>.</td></tr>
|
||||
</table>
|
||||
|
||||
<p>FatFs never uses any device dependent command and user defined command. Following table shows an example of non-standard commands usable for some applications.</p>
|
||||
<p>FatFs never uses any device dependent command nor user defined command. Following table shows an example of non-standard commands may be useful for some applications.</p>
|
||||
<table class="lst">
|
||||
<caption>Example of optional ioctl command</caption>
|
||||
<tr><th>Command</th><th>Description</th></tr>
|
||||
<tr><td>CTRL_FORMAT</td><td>Create a physical format on the media. If <tt class="arg">buff</tt> is not null, it is pointer to the call-back function for progress notification.</td></tr>
|
||||
<tr><td>CTRL_POWER_IDLE</td><td>Put the device idle state. <tt>STA_NOINIT</tt> in status flag may not be set if the device would go active state by generic read/write function.</td></tr>
|
||||
<tr><td>CTRL_POWER_OFF</td><td>Put the device off state. Shut-down the power to the device and deinitialize the device interface if needed. <tt>STA_NOINIT</tt> in status flag must be set. The device goes active state by <tt>disk_initialize()</tt> function.</td></tr>
|
||||
<tr><td>CTRL_POWER_IDLE</td><td>Put the device idle state. <tt>STA_NOINIT</tt> in the current status flags may not be set if the device goes active state by generic read/write function.</td></tr>
|
||||
<tr><td>CTRL_POWER_OFF</td><td>Put the device off state. Shut-down the power to the device and deinitialize the device interface if needed. <tt>STA_NOINIT</tt> in the current status flags must be set. The device goes active state by <tt>disk_initialize</tt> function.</td></tr>
|
||||
<tr><td>CTRL_LOCK</td><td>Lock media eject mechanism.</td></tr>
|
||||
<tr><td>CTRL_UNLOCK</td><td>Unlock media eject mechanism.</td></tr>
|
||||
<tr><td>CTRL_EJECT</td><td>Eject media cartridge. <tt>STA_NOINIT</tt> and <tt>STA_NODISK</tt> in status flag are set after the function succeeded.</td></tr>
|
||||
|
|
@ -82,9 +82,19 @@ DRESULT disk_ioctl (
|
|||
<tr><td>ATA_GET_REV</td><td>Get the revision string into a 16-byte buffer pointed by <tt class="arg">buff</tt>. (ATA/CFC specific command)</td></tr>
|
||||
<tr><td>ATA_GET_MODEL</td><td>Get the model string into a 40-byte buffer pointed by <tt class="arg">buff</tt>. (ATA/CFC specific command)</td></tr>
|
||||
<tr><td>ATA_GET_SN</td><td>Get the serial number string into a 20-byte buffer pointed by <tt class="arg">buff</tt>. (ATA/CFC specific command)</td></tr>
|
||||
<tr><td>ISDIO_READ</td><td>Read a block of iSDIO registers specified by command structure pointed by <tt class="arg">buff</tt>. (FlashAir specific command)</td></tr>
|
||||
<tr><td>ISDIO_WRITE</td><td>Write a block of data to iSDIO registers specified by command structure pointed by <tt class="arg">buff</tt>. (FlashAir specific command)</td></tr>
|
||||
<tr><td>ISDIO_MRITE</td><td>Change bits in an iSDIO register specified by command structure pointed by <tt class="arg">buff</tt>. (FlashAir specific command)</td></tr>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>The disk_ioctl function is not needed when <tt>FF_FS_READONLY == 1</tt> and <tt>FF_MAX_SS == FF_MIN_SS</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
72
3rdparty/fatfs-0.13/documents/doc/dread.html
vendored
Normal file
72
3rdparty/fatfs-0.13/documents/doc/dread.html
vendored
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/dread.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - disk_read</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>disk_read</h2>
|
||||
<p>The disk_read function is called to read data from the sector(s) of storage device.</p>
|
||||
<pre>
|
||||
DRESULT disk_read (
|
||||
BYTE <span class="arg">pdrv</span>, <span class="c">/* [IN] Physical drive number */</span>
|
||||
BYTE* <span class="arg">buff</span>, <span class="c">/* [OUT] Pointer to the read data buffer */</span>
|
||||
DWORD <span class="arg">sector</span>, <span class="c">/* [IN] Start sector number */</span>
|
||||
UINT <span class="arg">count</span> <span class="c">/* [IN] Number of sectros to read */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>Physical drive number to identify the target device.</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>Pointer to the first item of the <em>byte array</em> to store read data. Size of read data will be the sector size * <tt class="arg">count</tt> bytes.</dd>
|
||||
<dt>sector</dt>
|
||||
<dd>Start sector number in 32-bit LBA.</dd>
|
||||
<dt>count</dt>
|
||||
<dd>Number of sectors to read.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Value</h4>
|
||||
<dl class="ret">
|
||||
<dt>RES_OK (0)</dt>
|
||||
<dd>The function succeeded.</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>A hard error occured during the read operation and could not recover it.</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
<dd>Invalid parameter.</dd>
|
||||
<dt>RES_NOTRDY</dt>
|
||||
<dd>The device has not been initialized.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>Read/write operation to the generic storage devices, such as memory card, hadddisk and optical disk, is done in unit of block of data bytes called <em>sector</em>. FatFs supports the sector size in range of from 512 to 4096 bytes. When FatFs is configured for fixed sector size (<tt>FF_MIN_SS == MAX_SS</tt>, this is the most case), the read/write function must work at that sector size. When FatFs is configured for variable sector size (<tt>FF_MIN_SS != MAX_SS</tt>), the sector size of medium is inquired with <tt>disk_ioctl</tt> function immediately following <tt>disk_initialize</tt> function.</p>
|
||||
<p>The memory address specified by <tt class="arg">buff</tt> is not that always aligned to word boundary because the argument is defined as <tt>BYTE*</tt>. The unaligned read/write request can occure at <a href="appnote.html#fs1">direct transfer</a>. If the bus architecture, especially DMA controller, does not allow unaligned memory access, it should be solved in this function. There are some workarounds described below to avoid this issue.</p>
|
||||
<ul>
|
||||
<li>Convert word transfer to byte transfer in this function if needed. - Recommended.</li>
|
||||
<li>On the <tt>f_read()</tt> calls, avoid long read request that includes a whole of sector. - Any direct transfer never occures.</li>
|
||||
<li>On the <tt>f_read(fp, data, btw, bw)</tt> calls, make sure that <tt>(((UINT)data & 3) == (f_tell(fp) & 3))</tt> is true. - Word alignment of <tt class="arg">buff</tt> is guaranteed.</li>
|
||||
</ul>
|
||||
<p>Generally, a multiple sector read request must not be split into single sector transactions to the storage device, or read throughput gets worse.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
|
||||
<div class="para func">
|
||||
<h2>disk_status</h2>
|
||||
<p>The disk_status function returns the current disk status.</p>
|
||||
<p>The disk_status function is called to inquire the current drive status.</p>
|
||||
<pre>
|
||||
DSTATUS disk_status (
|
||||
BYTE <span class="arg">pdrv</span> <span class="c">/* [IN] Physical drive number */</span>
|
||||
|
|
@ -25,21 +25,21 @@ DSTATUS disk_status (
|
|||
<h4>Parameter</h4>
|
||||
<dl class="par">
|
||||
<dt>pdrv</dt>
|
||||
<dd>Physical drive number to identify the target device.</dd>
|
||||
<dd>Physical drive number to identify the target device. Always zero at single drive system.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>The disk status is returned in combination of following flags. FatFs refers only <tt>STA_NOINIT</tt> and <tt>STA_PROTECT</tt>.</p>
|
||||
<p>The current drive status is returned in combination of status flags described below. FatFs refers only <tt>STA_NOINIT</tt> and <tt>STA_PROTECT</tt>.</p>
|
||||
<dl class="ret">
|
||||
<dt>STA_NOINIT</dt>
|
||||
<dd>Indicates that the device is not initialized. This flag is set on system reset, media removal or failure of <tt>disk_initialize()</tt> function. It is cleared on <tt>disk_initialize()</tt> function succeeded. Media change that occurs asynchronously must be captured and reflect it to the status flags, or auto-mount feature will not work correctly. When media change detection feature is not supported, application program needs to de-initialize the file system object with <tt>f_mount()</tt> function after the media change.</dd>
|
||||
<dd>Indicates that the device has not been initialized and not ready to work. This flag is set on system reset, media removal or failure of <tt>disk_initialize</tt> function. It is cleared on <tt>disk_initialize</tt> function succeeded. Any media change that occurs asynchronously must be captured and reflect it to the status flags, or auto-mount function will not work correctly. If the system does not support media change detection, application program needs to explicitly re-mount the volume with <tt>f_mount</tt> function after each media change.</dd>
|
||||
<dt>STA_NODISK</dt>
|
||||
<dd>Indicates that no medium in the drive. This is always cleared on fixed disk drive. Note that FatFs does not refer this flag.</dd>
|
||||
<dd>Indicates that no medium in the drive. This is always cleared at fixed disk drive. Note that FatFs does not refer this flag.</dd>
|
||||
<dt>STA_PROTECT</dt>
|
||||
<dd>Indicates that the medium is write protected. This is always cleared on the drives without write protect feature. Not valid while no medium in the drive.</dd>
|
||||
<dd>Indicates that the medium is write protected. This is always cleared at the drives without write protect function. Not valid if no medium in the drive.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
|
||||
<div class="para func">
|
||||
<h2>disk_write</h2>
|
||||
<p>The disk_write writes sector(s) to the storage device.</p>
|
||||
<p>The disk_write function is called to write data to the sector(s) of storage device.</p>
|
||||
<pre>
|
||||
DRESULT disk_write (
|
||||
BYTE <span class="arg">drv</span>, <span class="c">/* [IN] Physical drive number */</span>
|
||||
|
|
@ -30,11 +30,11 @@ DRESULT disk_write (
|
|||
<dt>pdrv</dt>
|
||||
<dd>Physical drive number to identify the target device.</dd>
|
||||
<dt>buff</dt>
|
||||
<dd>Pointer to the <em>byte array</em> to be written. The size of data to be written is sector size * <tt class="arg">count</tt> bytes.</dd>
|
||||
<dd>Pointer to the first item of the <em>byte array</em> to be written. The size of data to be written is sector size * <tt class="arg">count</tt> bytes.</dd>
|
||||
<dt>sector</dt>
|
||||
<dd>Start sector number in logical block address (LBA).</dd>
|
||||
<dd>Start sector number in 32-bit LBA.</dd>
|
||||
<dt>count</dt>
|
||||
<dd>Number of sectors to write. FatFs specifis it in range of from 1 to 128.</dd>
|
||||
<dd>Number of sectors to write.</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
|
@ -45,7 +45,7 @@ DRESULT disk_write (
|
|||
<dt>RES_OK (0)</dt>
|
||||
<dd>The function succeeded.</dd>
|
||||
<dt>RES_ERROR</dt>
|
||||
<dd>Any hard error occured during the write operation and could not recover it.</dd>
|
||||
<dd>A hard error occured during the write operation and could not recover it.</dd>
|
||||
<dt>RES_WRPRT</dt>
|
||||
<dd>The medium is write protected.</dd>
|
||||
<dt>RES_PARERR</dt>
|
||||
|
|
@ -58,16 +58,16 @@ DRESULT disk_write (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The specified memory address is not that always aligned to word boundary because the type of pointer is defined as <tt>BYTE*</tt>. For more information, refer to the description of <a href="dread.html"><tt>disk_read()</tt></a> function.</p>
|
||||
<p>Generally, a multiple sector transfer request must not be split into single sector transactions to the storage device, or you will never get good write throughput.</p>
|
||||
<p>FatFs expects delayed write feature of the disk functions. The write operation to the media need not to be completed due to write operation is in progress or only stored it into the cache buffer when return from this function. But data on the <tt class="arg">buff</tt> is invalid after return from this function. The write completion request is done by <tt>CTRL_SYNC</tt> command of <tt><a href="dioctl.html">disk_ioctl()</a></tt> function. Therefore, if delayed write feature is implemented, the write throughput may be improved.</p>
|
||||
<p><em>Application program MUST NOT call this function, or FAT structure on the volume can be collapsed.</em></p>
|
||||
<p>The specified memory address is not that always aligned to word boundary because the argument is defined as <tt>BYTE*</tt>. For more information, refer to the description of <a href="dread.html"><tt>disk_read</tt></a> function.</p>
|
||||
<p>Generally, a multiple sector transfer request must not be split into single sector transactions to the storage device, or the write throughput will be drastically decreased.</p>
|
||||
<p>FatFs expects delayed write function of the disk control layer. The write operation to the media does not need to be completed at return from this function by what write operation is in progress or data is only stored into the write-back cache. But write data on the <tt class="arg">buff</tt> is invalid after return from this function. The write completion request is done by <tt>CTRL_SYNC</tt> command of <tt><a href="dioctl.html">disk_ioctl</a></tt> function. Therefore, if a delayed write function is implemented, the write throughput of the filesystem will be improved.</p>
|
||||
<p><em>Remarks: Application program MUST NOT call this function, or FAT structure on the volume can be collapsed.</em></p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>This function is not needed when <tt>_FS_READONLY == 1</tt>.</p>
|
||||
<p>This function is not needed when <tt>FF_FS_READONLY == 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
|
|
@ -33,15 +33,15 @@ int f_eof (
|
|||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>The <tt>f_eof()</tt> function returns a non-zero value if the read/write pointer has reached end of the file; otherwise it returns a zero.</p>
|
||||
<p>The <tt>f_eof</tt> function returns a non-zero value if the read/write pointer has reached end of the file; otherwise it returns a zero.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>In this revision, this function is implemented as a macro.</p>
|
||||
<p>In this revision, this function is implemented as a macro. It does not have any validation and mutual exclusion.</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_eof(fp) (((fp)->fptr) == ((fp)->fsize) ? 1 : 0)
|
||||
<span class="k">#define</span> f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
|
@ -39,9 +39,9 @@ int f_error (
|
|||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>In this revision, this function is implemented as a macro.</p>
|
||||
<p>In this revision, this function is implemented as a macro. It does not have any validation and mutual exclusion.</p>
|
||||
<pre>
|
||||
<span class="k">#define</span> f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
|
||||
<span class="k">#define</span> f_error(fp) ((fp)->err)
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
117
3rdparty/fatfs-0.13/documents/doc/expand.html
vendored
Normal file
117
3rdparty/fatfs-0.13/documents/doc/expand.html
vendored
Normal file
|
|
@ -0,0 +1,117 @@
|
|||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<meta http-equiv="Content-Style-Type" content="text/css">
|
||||
<link rel="up" title="FatFs" href="../00index_e.html">
|
||||
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/lseek.html">
|
||||
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
|
||||
<title>FatFs - f_expand</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="para func">
|
||||
<h2>f_expand</h2>
|
||||
<p>The f_expand function prepares or allocates a contiguous data area to the file.</p>
|
||||
|
||||
<pre>
|
||||
FRESULT f_expand (
|
||||
FIL* <span class="arg">fp</span>, <span class="c">/* [IN] File object */</span>
|
||||
FSIZE_t <span class="arg">fsz</span>, <span class="c">/* [IN] File size expanded to */</span>
|
||||
BYTE <span class="arg">opt</span> <span class="c">/* [IN] Operation mode */</span>
|
||||
);
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
<div class="para arg">
|
||||
<h4>Parameters</h4>
|
||||
<dl class="par">
|
||||
<dt>fp</dt>
|
||||
<dd>Pointer to the open file object.</dd>
|
||||
<dt>fsz</dt>
|
||||
<dd>Number of bytes in size to prepare or allocate for the file. The data type <tt>FSIZE_t</tt> is an alias of either <tt>DWORD</tt>(32-bit) or <tt>QWORD</tt>(64-bit) depends on the configuration option <tt>FF_FS_EXFAT</tt>.</dd>
|
||||
<dt>opt</dt>
|
||||
<dd>Operation mode. Prepare only (0) or Allocate now (1).</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ret">
|
||||
<h4>Return Values</h4>
|
||||
<p>
|
||||
<a href="rc.html#ok">FR_OK</a>,
|
||||
<a href="rc.html#de">FR_DISK_ERR</a>,
|
||||
<a href="rc.html#ie">FR_INT_ERR</a>,
|
||||
<a href="rc.html#io">FR_INVALID_OBJECT</a>,
|
||||
<a href="rc.html#dn">FR_DENIED</a>,
|
||||
<a href="rc.html#tm">FR_TIMEOUT</a>
|
||||
</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>f_expand</tt> function prepares or allocates a contiguous data area to the file. When <tt class="arg">opt</tt> is 1, the function allocates a contiguous data area to the file. Unlike expansion of file by <tt>f_lseek</tt> function, the file must be truncated prior to use this function and read/write pointer of the file stays at top of the file after the function. The file content allocated with this function is <em>undefined</em> because no data is written to the file in this process. The function can fail with <tt>FR_DENIED</tt> due to some reasons below.</p>
|
||||
<ul>
|
||||
<li>No free contiguous space was found.</li>
|
||||
<li>Size of the file was not zero.</li>
|
||||
<li>The file has been opened in read-only mode.</li>
|
||||
<li>Not allowable file size. (>= 4GiB on FAT volume)</li>
|
||||
</ul>
|
||||
<p>When <tt class="arg">opt</tt> is 0, the function finds a contiguous data area and set it as suggested point for next allocation instead of allocating it to the file. The next cluster allocation is started at top of the contiguous area found by this function. Thus the write file is guaranteed be contiguous and no allocation delay until the size reaches that size at least unless any other changes to the volume is performed.</p>
|
||||
<p>The contiguous file would have an advantage at time-critical read/write operations. It eliminates some overheads in the filesystem and the storage media caused by random access due to fragmented file data. Especially FAT access for the contiguous file on the exFAT volume is completely eliminated and storage media will be accessed sequentially.</p>
|
||||
<p>Also the contiguous file can be easily accessed directly via low-level disk functions. But this is not recommended in consideration for future compatibility.</p>
|
||||
</div>
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>Available when <tt>FF_USE_EXPAND == 1</tt> and <tt>FF_FS_READONLY == 0</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para use">
|
||||
<h4>Example</h4>
|
||||
<pre>
|
||||
<span class="c">/* Creating a contiguous file */</span>
|
||||
|
||||
<span class="c">/* Create a new file */</span>
|
||||
res = f_open(fp = malloc(sizeof (FIL)), "file.dat", FA_WRITE|FA_CREATE_ALWAYS);
|
||||
if (res) { <span class="c">/* Check if the file has been opened */</span>
|
||||
free(fp);
|
||||
die("Failed to open the file.");
|
||||
}
|
||||
|
||||
<span class="c">/* Alloacte a 100 MiB of contiguous area to the file */</span>
|
||||
res = <em>f_expand</em>(fp, 104857600, 1);
|
||||
if (res) { <span class="c">/* Check if the file has been expanded */</span>
|
||||
f_close(fp);
|
||||
free(fp);
|
||||
die("Failed to allocate contiguous area.");
|
||||
}
|
||||
|
||||
<span class="c">/* Now you have a contiguous file accessible with fp */</span>
|
||||
|
||||
</pre>
|
||||
<pre>
|
||||
<span class="c">/* Accessing the contiguous file via low-level disk functions */</span>
|
||||
|
||||
<span class="c">/* Get physical location of the file data */</span>
|
||||
drv = fp->obj.fs->pdrv;
|
||||
lba = fp->obj.fs->database + fp->obj.fs->csize * (fp->obj.sclust - 2);
|
||||
|
||||
<span class="c">/* Write 2048 sectors from top of the file at a time */</span>
|
||||
res = disk_write(drv, buffer, lba, 2048);
|
||||
|
||||
</pre>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para ref">
|
||||
<h4>See Also</h4>
|
||||
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
|
||||
</div>
|
||||
|
||||
<p class="foot"><a href="../00index_e.html">Return</a></p>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -13,7 +13,7 @@
|
|||
|
||||
<div class="para func">
|
||||
<h2>get_fattime</h2>
|
||||
<p>The get_fattime function gets current time.</p>
|
||||
<p>The get_fattime function is called to get the current time.</p>
|
||||
<pre>
|
||||
DWORD get_fattime (void);
|
||||
</pre>
|
||||
|
|
@ -22,10 +22,10 @@ DWORD get_fattime (void);
|
|||
|
||||
<div class="para ret">
|
||||
<h4>Return Value</h4>
|
||||
<p>Currnet time is returned with packed into a <tt>DWORD</tt> value. The bit field is as follows:</p>
|
||||
<p>Currnet local time shall be returned as bit-fields packed into a <tt>DWORD</tt> value. The bit fields are as follows:</p>
|
||||
<dl class="ret">
|
||||
<dt>bit31:25</dt>
|
||||
<dd>Year origin from the 1980 (0..127)</dd>
|
||||
<dd>Year origin from the 1980 (0..127, e.g. 37 for 2017)</dd>
|
||||
<dt>bit24:21</dt>
|
||||
<dd>Month (1..12)</dd>
|
||||
<dt>bit20:16</dt>
|
||||
|
|
@ -35,20 +35,20 @@ DWORD get_fattime (void);
|
|||
<dt>bit10:5</dt>
|
||||
<dd>Minute (0..59)</dd>
|
||||
<dt>bit4:0</dt>
|
||||
<dd>Second / 2 (0..29)</dd>
|
||||
<dd>Second / 2 (0..29, e.g. 25 for 50)</dd>
|
||||
</dl>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para desc">
|
||||
<h4>Description</h4>
|
||||
<p>The <tt>get_fattime()</tt> function shall return any valid time even if the system does not support a real time clock. If a zero is returned, the file will not have a valid timestamp.</p>
|
||||
<p>The <tt>get_fattime</tt> function shall return any valid time even if the system does not support a real time clock. If a zero is returned, the file will not have a valid timestamp.</p>
|
||||
</div>
|
||||
|
||||
|
||||
<div class="para comp">
|
||||
<h4>QuickInfo</h4>
|
||||
<p>This function is not needed when <tt>_FS_READONLY == 1</tt>.</p>
|
||||
<p>This function is not needed when <tt>FF_FS_READONLY == 1</tt> or <tt>FF_FS_NORTC == 1</tt>.</p>
|
||||
</div>
|
||||
|
||||
|
||||
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