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| simon |
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/*----------------------------------------------------------------------------/
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| simon |
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/ FatFs - FAT file system module R0.06 (C)ChaN, 2008
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/-----------------------------------------------------------------------------/
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/ The FatFs module is an experimenal project to implement FAT file system to
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| simon |
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/ cheap microcontrollers. This is a free software and is opened for education,
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| simon |
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/ research and development under license policy of following trems.
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| simon |
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/
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/ Copyright (C) 2008, ChaN, all right reserved.
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/
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/ * The FatFs module is a free software and there is no warranty.
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/ * You can use, modify and/or redistribute it for personal, non-profit or
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/ commercial use without restriction under your responsibility.
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/ * Redistributions of source code must retain the above copyright notice.
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/
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/-----------------------------------------------------------------------------/
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| simon |
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/ Feb 26,'06 R0.00 Prototype.
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| simon |
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/
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| simon |
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/ Apr 29,'06 R0.01 First stable version.
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/
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/ Jun 01,'06 R0.02 Added FAT12 support.
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/ Removed unbuffered mode.
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| simon |
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/ Fixed a problem on small (<32M) patition.
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| simon |
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/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
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/
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/ Sep 22,'06 R0.03 Added f_rename().
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/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
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/ Dec 11,'06 R0.03a Improved cluster scan algolithm to write files fast.
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/ Fixed f_mkdir() creates incorrect directory on FAT32.
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/
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/ Feb 04,'07 R0.04 Supported multiple drive system.
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/ Changed some interfaces for multiple drive system.
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/ Changed f_mountdrv() to f_mount().
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| simon |
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/ Added f_mkfs().
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/ Apr 01,'07 R0.04a Supported multiple partitions on a plysical drive.
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/ Added a capability of extending file size to f_lseek().
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/ Added minimization level 3.
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/ Fixed an endian sensitive code in f_mkfs().
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/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
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/ Added FSInfo support.
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/ Fixed DBCS name can result FR_INVALID_NAME.
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/ Fixed short seek (<= csize) collapses the file object.
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/
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/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
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/ Fixed f_mkfs() on FAT32 creates incorrect FSInfo.
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/ Fixed f_mkdir() on FAT32 creates incorrect directory.
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/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
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| simon |
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/ Fixed off by one error at FAT sub-type determination.
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/ Fixed btr in f_read() can be mistruncated.
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/ Fixed cached sector is not flushed when create and close
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/ without write.
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/
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/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
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/ Improved performance of f_lseek() on moving to the same
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| simon |
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/ or following cluster.
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/---------------------------------------------------------------------------*/
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#include <string.h>
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#include "ff.h" /* FatFs declarations */
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| simon |
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#include "diskio.h" /* Include file for user provided disk functions */
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/*--------------------------------------------------------------------------
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Module Private Functions
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---------------------------------------------------------------------------*/
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| simon |
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static
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| simon |
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FATFS *FatFs[_DRIVES]; /* Pointer to the file system objects (logical drives) */
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| simon |
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static
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| simon |
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WORD fsid; /* File system mount ID */
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| simon |
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/*-----------------------------------------------------------------------*/
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| simon |
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/* Change window offset */
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| simon |
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/*-----------------------------------------------------------------------*/
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| simon |
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| simon |
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static
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| simon |
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BOOL move_window ( /* TRUE: successful, FALSE: failed */
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| simon |
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FATFS *fs, /* File system object */
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| simon |
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DWORD sector /* Sector number to make apperance in the fs->win[] */
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| simon |
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) /* Move to zero only writes back dirty window */
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| simon |
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{
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| simon |
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DWORD wsect;
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wsect = fs->winsect;
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| simon |
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if (wsect != sector) { /* Changed current window */
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| simon |
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#if !_FS_READONLY
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BYTE n;
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if (fs->winflag) { /* Write back dirty window if needed */
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if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK)
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return FALSE;
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fs->winflag = 0;
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if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */
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for (n = fs->n_fats; n >= 2; n--) { /* Refrect the change to FAT copy */
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wsect += fs->sects_fat;
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disk_write(fs->drive, fs->win, wsect, 1);
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}
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}
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}
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#endif
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if (sector) {
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if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK)
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return FALSE;
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| simon |
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fs->winsect = sector;
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}
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}
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return TRUE;
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| simon |
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}
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| simon |
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| simon |
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| simon |
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/*-----------------------------------------------------------------------*/
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| simon |
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/* Clean-up cached data */
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| simon |
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/*-----------------------------------------------------------------------*/
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| simon |
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| simon |
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#if !_FS_READONLY
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static
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FRESULT sync ( /* FR_OK: successful, FR_RW_ERROR: failed */
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FATFS *fs /* File system object */
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)
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{
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fs->winflag = 1;
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if (!move_window(fs, 0)) return FR_RW_ERROR;
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| simon |
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#if _USE_FSINFO
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/* Update FSInfo sector if needed */
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if (fs->fs_type == FS_FAT32 && fs->fsi_flag) {
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fs->winsect = 0;
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memset(fs->win, 0, 512);
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ST_WORD(&fs->win[BS_55AA], 0xAA55);
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ST_DWORD(&fs->win[FSI_LeadSig], 0x41615252);
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ST_DWORD(&fs->win[FSI_StrucSig], 0x61417272);
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| simon |
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ST_DWORD(&fs->win[FSI_Free_Count], fs->free_clust);
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ST_DWORD(&fs->win[FSI_Nxt_Free], fs->last_clust);
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disk_write(fs->drive, fs->win, fs->fsi_sector, 1);
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fs->fsi_flag = 0;
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}
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#endif
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/* Make sure that no pending write process in the physical drive */
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if (disk_ioctl(fs->drive, CTRL_SYNC, NULL) != RES_OK)
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return FR_RW_ERROR;
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| simon |
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return FR_OK;
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}
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#endif
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149
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/*-----------------------------------------------------------------------*/
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/* Get a cluster status */
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/*-----------------------------------------------------------------------*/
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155
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| simon |
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static
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| simon |
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157
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DWORD get_cluster ( /* 0,>=2: successful, 1: failed */
|
| simon |
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158
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FATFS *fs, /* File system object */
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| simon |
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DWORD clust /* Cluster# to get the link information */
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| simon |
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160
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)
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161
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{
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| simon |
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162
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WORD wc, bc;
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DWORD fatsect;
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| simon |
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164
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| simon |
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165
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| simon |
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if (clust >= 2 && clust < fs->max_clust) { /* Is it a valid cluster#? */
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| simon |
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167
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fatsect = fs->fatbase;
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| simon |
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168
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switch (fs->fs_type) {
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| simon |
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169
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case FS_FAT12 :
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| simon |
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|
170
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bc = (WORD)clust * 3 / 2;
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| simon |
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|
171
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if (!move_window(fs, fatsect + (bc / SS(fs)))) break;
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| simon |
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|
172
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wc = fs->win[bc & (SS(fs) - 1)]; bc++;
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| simon |
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if (!move_window(fs, fatsect + (bc / SS(fs)))) break;
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| simon |
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wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8;
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| simon |
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return (clust & 1) ? (wc >> 4) : (wc & 0xFFF);
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| simon |
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176
|
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| simon |
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177
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case FS_FAT16 :
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| simon |
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178
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if (!move_window(fs, fatsect + (clust / (SS(fs) / 2)))) break;
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| simon |
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179
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return LD_WORD(&fs->win[((WORD)clust * 2) & (SS(fs) - 1)]);
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| simon |
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180
|
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| simon |
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181
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case FS_FAT32 :
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| simon |
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182
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if (!move_window(fs, fatsect + (clust / (SS(fs) / 4)))) break;
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| simon |
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183
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return LD_DWORD(&fs->win[((WORD)clust * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF;
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184
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}
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185
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}
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| simon |
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return 1; /* Out of cluster range, or an error occured */
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| simon |
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188
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}
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/*-----------------------------------------------------------------------*/
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/* Change a cluster status */
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/*-----------------------------------------------------------------------*/
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196
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197
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#if !_FS_READONLY
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198
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static
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199
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BOOL put_cluster ( /* TRUE: successful, FALSE: failed */
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| simon |
0:560a6744936c
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200
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FATFS *fs, /* File system object */
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| simon |
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201
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DWORD clust, /* Cluster# to change (must be 2 to fs->max_clust-1) */
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| simon |
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202
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DWORD val /* New value to mark the cluster */
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| simon |
0:560a6744936c
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203
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)
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204
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{
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| simon |
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205
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WORD bc;
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| simon |
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206
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BYTE *p;
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| simon |
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DWORD fatsect;
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208
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| simon |
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209
|
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| simon |
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210
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fatsect = fs->fatbase;
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| simon |
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211
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switch (fs->fs_type) {
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| simon |
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212
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case FS_FAT12 :
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| simon |
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213
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bc = (WORD)clust * 3 / 2;
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| simon |
0:560a6744936c
|
214
|
if (!move_window(fs, fatsect + (bc / SS(fs)))) return FALSE;
|
| simon |
0:560a6744936c
|
215
|
p = &fs->win[bc & (SS(fs) - 1)];
|
| simon |
0:560a6744936c
|
216
|
*p = (clust & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val;
|
| simon |
0:560a6744936c
|
217
|
bc++;
|
| simon |
0:560a6744936c
|
218
|
fs->winflag = 1;
|
| simon |
0:560a6744936c
|
219
|
if (!move_window(fs, fatsect + (bc / SS(fs)))) return FALSE;
|
| simon |
0:560a6744936c
|
220
|
p = &fs->win[bc & (SS(fs) - 1)];
|
| simon |
0:560a6744936c
|
221
|
*p = (clust & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F));
|
| simon |
0:560a6744936c
|
222
|
break;
|
| simon |
0:560a6744936c
|
223
|
|
| simon |
0:560a6744936c
|
224
|
case FS_FAT16 :
|
| simon |
0:560a6744936c
|
225
|
if (!move_window(fs, fatsect + (clust / (SS(fs) / 2)))) return FALSE;
|
| simon |
0:560a6744936c
|
226
|
ST_WORD(&fs->win[((WORD)clust * 2) & (SS(fs) - 1)], (WORD)val);
|
| simon |
0:560a6744936c
|
227
|
break;
|
| simon |
0:560a6744936c
|
228
|
|
| simon |
0:560a6744936c
|
229
|
case FS_FAT32 :
|
| simon |
0:560a6744936c
|
230
|
if (!move_window(fs, fatsect + (clust / (SS(fs) / 4)))) return FALSE;
|
| simon |
0:560a6744936c
|
231
|
ST_DWORD(&fs->win[((WORD)clust * 4) & (SS(fs) - 1)], val);
|
| simon |
0:560a6744936c
|
232
|
break;
|
| simon |
0:560a6744936c
|
233
|
|
| simon |
0:560a6744936c
|
234
|
default :
|
| simon |
0:560a6744936c
|
235
|
return FALSE;
|
| simon |
0:560a6744936c
|
236
|
}
|
| simon |
0:560a6744936c
|
237
|
fs->winflag = 1;
|
| simon |
0:560a6744936c
|
238
|
return TRUE;
|
| simon |
0:560a6744936c
|
239
|
}
|
| simon |
0:560a6744936c
|
240
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
241
|
|
| simon |
0:560a6744936c
|
242
|
|
| simon |
0:560a6744936c
|
243
|
|
| simon |
0:560a6744936c
|
244
|
|
| simon |
0:560a6744936c
|
245
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
246
|
/* Remove a cluster chain */
|
| simon |
0:560a6744936c
|
247
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
248
|
|
| simon |
0:560a6744936c
|
249
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
250
|
static
|
| simon |
0:560a6744936c
|
251
|
BOOL remove_chain ( /* TRUE: successful, FALSE: failed */
|
| simon |
0:560a6744936c
|
252
|
FATFS *fs, /* File system object */
|
| simon |
0:560a6744936c
|
253
|
DWORD clust /* Cluster# to remove chain from */
|
| simon |
0:560a6744936c
|
254
|
)
|
| simon |
0:560a6744936c
|
255
|
{
|
| simon |
0:560a6744936c
|
256
|
DWORD nxt;
|
| simon |
0:560a6744936c
|
257
|
|
| simon |
0:560a6744936c
|
258
|
|
| simon |
0:560a6744936c
|
259
|
while (clust >= 2 && clust < fs->max_clust) {
|
| simon |
0:560a6744936c
|
260
|
nxt = get_cluster(fs, clust);
|
| simon |
0:560a6744936c
|
261
|
if (nxt == 1) return FALSE;
|
| simon |
0:560a6744936c
|
262
|
if (!put_cluster(fs, clust, 0)) return FALSE;
|
| simon |
0:560a6744936c
|
263
|
if (fs->free_clust != 0xFFFFFFFF) {
|
| simon |
0:560a6744936c
|
264
|
fs->free_clust++;
|
| simon |
0:560a6744936c
|
265
|
#if _USE_FSINFO
|
| simon |
0:560a6744936c
|
266
|
fs->fsi_flag = 1;
|
| simon |
0:560a6744936c
|
267
|
#endif
|
| simon |
0:560a6744936c
|
268
|
}
|
| simon |
0:560a6744936c
|
269
|
clust = nxt;
|
| simon |
0:560a6744936c
|
270
|
}
|
| simon |
0:560a6744936c
|
271
|
return TRUE;
|
| simon |
0:560a6744936c
|
272
|
}
|
| simon |
0:560a6744936c
|
273
|
#endif
|
| simon |
0:560a6744936c
|
274
|
|
| simon |
0:560a6744936c
|
275
|
|
| simon |
0:560a6744936c
|
276
|
|
| simon |
0:560a6744936c
|
277
|
|
| simon |
0:560a6744936c
|
278
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
279
|
/* Stretch or create a cluster chain */
|
| simon |
0:560a6744936c
|
280
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
281
|
|
| simon |
0:560a6744936c
|
282
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
283
|
static
|
| simon |
0:560a6744936c
|
284
|
DWORD create_chain ( /* 0: No free cluster, 1: Error, >=2: New cluster number */
|
| simon |
0:560a6744936c
|
285
|
FATFS *fs, /* File system object */
|
| simon |
0:560a6744936c
|
286
|
DWORD clust /* Cluster# to stretch, 0 means create new */
|
| simon |
0:560a6744936c
|
287
|
)
|
| simon |
0:560a6744936c
|
288
|
{
|
| simon |
0:560a6744936c
|
289
|
DWORD cstat, ncl, scl, mcl = fs->max_clust;
|
| simon |
0:560a6744936c
|
290
|
|
| simon |
0:560a6744936c
|
291
|
|
| simon |
0:560a6744936c
|
292
|
if (clust == 0) { /* Create new chain */
|
| simon |
0:560a6744936c
|
293
|
scl = fs->last_clust; /* Get suggested start point */
|
| simon |
0:560a6744936c
|
294
|
if (scl == 0 || scl >= mcl) scl = 1;
|
| simon |
0:560a6744936c
|
295
|
}
|
| simon |
0:560a6744936c
|
296
|
else { /* Stretch existing chain */
|
| simon |
0:560a6744936c
|
297
|
cstat = get_cluster(fs, clust); /* Check the cluster status */
|
| simon |
0:560a6744936c
|
298
|
if (cstat < 2) return 1; /* It is an invalid cluster */
|
| simon |
0:560a6744936c
|
299
|
if (cstat < mcl) return cstat; /* It is already followed by next cluster */
|
| simon |
0:560a6744936c
|
300
|
scl = clust;
|
| simon |
0:560a6744936c
|
301
|
}
|
| simon |
0:560a6744936c
|
302
|
|
| simon |
0:560a6744936c
|
303
|
ncl = scl; /* Start cluster */
|
| simon |
0:560a6744936c
|
304
|
for (;;) {
|
| simon |
0:560a6744936c
|
305
|
ncl++; /* Next cluster */
|
| simon |
0:560a6744936c
|
306
|
if (ncl >= mcl) { /* Wrap around */
|
| simon |
0:560a6744936c
|
307
|
ncl = 2;
|
| simon |
0:560a6744936c
|
308
|
if (ncl > scl) return 0; /* No free custer */
|
| simon |
0:560a6744936c
|
309
|
}
|
| simon |
0:560a6744936c
|
310
|
cstat = get_cluster(fs, ncl); /* Get the cluster status */
|
| simon |
0:560a6744936c
|
311
|
if (cstat == 0) break; /* Found a free cluster */
|
| simon |
0:560a6744936c
|
312
|
if (cstat == 1) return 1; /* Any error occured */
|
| simon |
0:560a6744936c
|
313
|
if (ncl == scl) return 0; /* No free custer */
|
| simon |
0:560a6744936c
|
314
|
}
|
| simon |
0:560a6744936c
|
315
|
|
| simon |
0:560a6744936c
|
316
|
if (!put_cluster(fs, ncl, 0x0FFFFFFF)) return 1; /* Mark the new cluster "in use" */
|
| simon |
0:560a6744936c
|
317
|
if (clust != 0 && !put_cluster(fs, clust, ncl)) return 1; /* Link it to previous one if needed */
|
| simon |
0:560a6744936c
|
318
|
|
| simon |
0:560a6744936c
|
319
|
fs->last_clust = ncl; /* Update fsinfo */
|
| simon |
0:560a6744936c
|
320
|
if (fs->free_clust != 0xFFFFFFFF) {
|
| simon |
0:560a6744936c
|
321
|
fs->free_clust--;
|
| simon |
0:560a6744936c
|
322
|
#if _USE_FSINFO
|
| simon |
0:560a6744936c
|
323
|
fs->fsi_flag = 1;
|
| simon |
0:560a6744936c
|
324
|
#endif
|
| simon |
0:560a6744936c
|
325
|
}
|
| simon |
0:560a6744936c
|
326
|
|
| simon |
0:560a6744936c
|
327
|
return ncl; /* Return new cluster number */
|
| simon |
0:560a6744936c
|
328
|
}
|
| simon |
0:560a6744936c
|
329
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
330
|
|
| simon |
0:560a6744936c
|
331
|
|
| simon |
0:560a6744936c
|
332
|
|
| simon |
0:560a6744936c
|
333
|
|
| simon |
0:560a6744936c
|
334
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
335
|
/* Get sector# from cluster# */
|
| simon |
0:560a6744936c
|
336
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
337
|
|
| simon |
0:560a6744936c
|
338
|
static
|
| simon |
0:560a6744936c
|
339
|
DWORD clust2sect ( /* !=0: sector number, 0: failed - invalid cluster# */
|
| simon |
0:560a6744936c
|
340
|
FATFS *fs, /* File system object */
|
| simon |
0:560a6744936c
|
341
|
DWORD clust /* Cluster# to be converted */
|
| simon |
0:560a6744936c
|
342
|
)
|
| simon |
0:560a6744936c
|
343
|
{
|
| simon |
0:560a6744936c
|
344
|
clust -= 2;
|
| simon |
0:560a6744936c
|
345
|
if (clust >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */
|
| simon |
0:560a6744936c
|
346
|
return clust * fs->csize + fs->database;
|
| simon |
0:560a6744936c
|
347
|
}
|
| simon |
0:560a6744936c
|
348
|
|
| simon |
0:560a6744936c
|
349
|
|
| simon |
0:560a6744936c
|
350
|
|
| simon |
0:560a6744936c
|
351
|
|
| simon |
0:560a6744936c
|
352
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
353
|
/* Move directory pointer to next */
|
| simon |
0:560a6744936c
|
354
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
355
|
|
| simon |
0:560a6744936c
|
356
|
static
|
| simon |
0:560a6744936c
|
357
|
BOOL next_dir_entry ( /* TRUE: successful, FALSE: could not move next */
|
| simon |
0:560a6744936c
|
358
|
FATFS_DIR *dj /* Pointer to directory object */
|
| simon |
0:560a6744936c
|
359
|
)
|
| simon |
0:560a6744936c
|
360
|
{
|
| simon |
0:560a6744936c
|
361
|
DWORD clust;
|
| simon |
0:560a6744936c
|
362
|
WORD idx;
|
| simon |
0:560a6744936c
|
363
|
|
| simon |
0:560a6744936c
|
364
|
|
| simon |
0:560a6744936c
|
365
|
idx = dj->index + 1;
|
| simon |
0:560a6744936c
|
366
|
if ((idx & ((SS(dj->fs) - 1) / 32)) == 0) { /* Table sector changed? */
|
| simon |
0:560a6744936c
|
367
|
dj->sect++; /* Next sector */
|
| simon |
0:560a6744936c
|
368
|
if (dj->clust == 0) { /* In static table */
|
| simon |
0:560a6744936c
|
369
|
if (idx >= dj->fs->n_rootdir) return FALSE; /* Reached to end of table */
|
| simon |
0:560a6744936c
|
370
|
} else { /* In dynamic table */
|
| simon |
0:560a6744936c
|
371
|
if (((idx / (SS(dj->fs) / 32)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */
|
| simon |
0:560a6744936c
|
372
|
clust = get_cluster(dj->fs, dj->clust); /* Get next cluster */
|
| simon |
0:560a6744936c
|
373
|
if (clust < 2 || clust >= dj->fs->max_clust) /* Reached to end of table */
|
| simon |
0:560a6744936c
|
374
|
return FALSE;
|
| simon |
0:560a6744936c
|
375
|
dj->clust = clust; /* Initialize for new cluster */
|
| simon |
0:560a6744936c
|
376
|
dj->sect = clust2sect(dj->fs, clust);
|
| simon |
0:560a6744936c
|
377
|
}
|
| simon |
0:560a6744936c
|
378
|
}
|
| simon |
0:560a6744936c
|
379
|
}
|
| simon |
0:560a6744936c
|
380
|
dj->index = idx; /* Lower several bits of dj->index indicates offset in dj->sect */
|
| simon |
0:560a6744936c
|
381
|
return TRUE;
|
| simon |
0:560a6744936c
|
382
|
}
|
| simon |
0:560a6744936c
|
383
|
|
| simon |
0:560a6744936c
|
384
|
|
| simon |
0:560a6744936c
|
385
|
|
| simon |
0:560a6744936c
|
386
|
|
| simon |
0:560a6744936c
|
387
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
388
|
/* Get file status from directory entry */
|
| simon |
0:560a6744936c
|
389
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
390
|
|
| simon |
0:560a6744936c
|
391
|
#if _FS_MINIMIZE <= 1
|
| simon |
0:560a6744936c
|
392
|
static
|
| simon |
0:560a6744936c
|
393
|
void get_fileinfo ( /* No return code */
|
| simon |
0:560a6744936c
|
394
|
FILINFO *finfo, /* Ptr to store the file information */
|
| simon |
0:560a6744936c
|
395
|
const BYTE *dir /* Ptr to the directory entry */
|
| simon |
0:560a6744936c
|
396
|
)
|
| simon |
0:560a6744936c
|
397
|
{
|
| simon |
0:560a6744936c
|
398
|
BYTE n, c, a;
|
| simon |
0:560a6744936c
|
399
|
char *p;
|
| simon |
0:560a6744936c
|
400
|
|
| simon |
0:560a6744936c
|
401
|
|
| simon |
0:560a6744936c
|
402
|
p = &finfo->fname[0];
|
| simon |
0:560a6744936c
|
403
|
a = _USE_NTFLAG ? dir[DIR_NTres] : 0; /* NT flag */
|
| simon |
0:560a6744936c
|
404
|
for (n = 0; n < 8; n++) { /* Convert file name (body) */
|
| simon |
0:560a6744936c
|
405
|
c = dir[n];
|
| simon |
0:560a6744936c
|
406
|
if (c == ' ') break;
|
| simon |
0:560a6744936c
|
407
|
if (c == 0x05) c = 0xE5;
|
| simon |
0:560a6744936c
|
408
|
if (a & 0x08 && c >= 'A' && c <= 'Z') c += 0x20;
|
| simon |
0:560a6744936c
|
409
|
*p++ = c;
|
| simon |
0:560a6744936c
|
410
|
}
|
| simon |
0:560a6744936c
|
411
|
if (dir[8] != ' ') { /* Convert file name (extension) */
|
| simon |
0:560a6744936c
|
412
|
*p++ = '.';
|
| simon |
0:560a6744936c
|
413
|
for (n = 8; n < 11; n++) {
|
| simon |
0:560a6744936c
|
414
|
c = dir[n];
|
| simon |
0:560a6744936c
|
415
|
if (c == ' ') break;
|
| simon |
0:560a6744936c
|
416
|
if (a & 0x10 && c >= 'A' && c <= 'Z') c += 0x20;
|
| simon |
0:560a6744936c
|
417
|
*p++ = c;
|
| simon |
0:560a6744936c
|
418
|
}
|
| simon |
0:560a6744936c
|
419
|
}
|
| simon |
0:560a6744936c
|
420
|
*p = '\0';
|
| simon |
0:560a6744936c
|
421
|
|
| simon |
0:560a6744936c
|
422
|
finfo->fattrib = dir[DIR_Attr]; /* Attribute */
|
| simon |
0:560a6744936c
|
423
|
finfo->fsize = LD_DWORD(&dir[DIR_FileSize]); /* Size */
|
| simon |
0:560a6744936c
|
424
|
finfo->fdate = LD_WORD(&dir[DIR_WrtDate]); /* Date */
|
| simon |
0:560a6744936c
|
425
|
finfo->ftime = LD_WORD(&dir[DIR_WrtTime]); /* Time */
|
| simon |
0:560a6744936c
|
426
|
}
|
| simon |
0:560a6744936c
|
427
|
#endif /* _FS_MINIMIZE <= 1 */
|
| simon |
0:560a6744936c
|
428
|
|
| simon |
0:560a6744936c
|
429
|
|
| simon |
0:560a6744936c
|
430
|
|
| simon |
0:560a6744936c
|
431
|
|
| simon |
0:560a6744936c
|
432
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
433
|
/* Pick a paragraph and create the name in format of directory entry */
|
| simon |
0:560a6744936c
|
434
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
435
|
|
| simon |
0:560a6744936c
|
436
|
static
|
| simon |
0:560a6744936c
|
437
|
char make_dirfile ( /* 1: error - detected an invalid format, '\0'or'/': next character */
|
| simon |
0:560a6744936c
|
438
|
const char **path, /* Pointer to the file path pointer */
|
| simon |
0:560a6744936c
|
439
|
char *dirname /* Pointer to directory name buffer {Name(8), Ext(3), NT flag(1)} */
|
| simon |
0:560a6744936c
|
440
|
)
|
| simon |
0:560a6744936c
|
441
|
{
|
| simon |
0:560a6744936c
|
442
|
BYTE n, t, c, a, b;
|
| simon |
0:560a6744936c
|
443
|
|
| simon |
0:560a6744936c
|
444
|
|
| simon |
0:560a6744936c
|
445
|
memset(dirname, ' ', 8+3); /* Fill buffer with spaces */
|
| simon |
0:560a6744936c
|
446
|
a = 0; b = 0x18; /* NT flag */
|
| simon |
0:560a6744936c
|
447
|
n = 0; t = 8;
|
| simon |
0:560a6744936c
|
448
|
for (;;) {
|
| simon |
0:560a6744936c
|
449
|
c = *(*path)++;
|
| simon |
0:560a6744936c
|
450
|
if (c == '\0' || c == '/') { /* Reached to end of str or directory separator */
|
| simon |
0:560a6744936c
|
451
|
if (n == 0) break;
|
| simon |
0:560a6744936c
|
452
|
dirname[11] = _USE_NTFLAG ? (a & b) : 0;
|
| simon |
0:560a6744936c
|
453
|
return c;
|
| simon |
0:560a6744936c
|
454
|
}
|
| simon |
0:560a6744936c
|
455
|
if (c <= ' ' || c == 0x7F) break; /* Reject invisible chars */
|
| simon |
0:560a6744936c
|
456
|
if (c == '.') {
|
| simon |
0:560a6744936c
|
457
|
if (!(a & 1) && n >= 1 && n <= 8) { /* Enter extension part */
|
| simon |
0:560a6744936c
|
458
|
n = 8; t = 11; continue;
|
| simon |
0:560a6744936c
|
459
|
}
|
| simon |
0:560a6744936c
|
460
|
break;
|
| simon |
0:560a6744936c
|
461
|
}
|
| simon |
0:560a6744936c
|
462
|
if (_USE_SJIS &&
|
| simon |
0:560a6744936c
|
463
|
((c >= 0x81 && c <= 0x9F) || /* Accept S-JIS code */
|
| simon |
0:560a6744936c
|
464
|
(c >= 0xE0 && c <= 0xFC))) {
|
| simon |
0:560a6744936c
|
465
|
if (n == 0 && c == 0xE5) /* Change heading \xE5 to \x05 */
|
| simon |
0:560a6744936c
|
466
|
c = 0x05;
|
| simon |
0:560a6744936c
|
467
|
a ^= 0x01; goto md_l2;
|
| simon |
0:560a6744936c
|
468
|
}
|
| simon |
0:560a6744936c
|
469
|
if (c == '"') break; /* Reject " */
|
| simon |
0:560a6744936c
|
470
|
if (c <= ')') goto md_l1; /* Accept ! # $ % & ' ( ) */
|
| simon |
0:560a6744936c
|
471
|
if (c <= ',') break; /* Reject * + , */
|
| simon |
0:560a6744936c
|
472
|
if (c <= '9') goto md_l1; /* Accept - 0-9 */
|
| simon |
0:560a6744936c
|
473
|
if (c <= '?') break; /* Reject : ; < = > ? */
|
| simon |
0:560a6744936c
|
474
|
if (!(a & 1)) { /* These checks are not applied to S-JIS 2nd byte */
|
| simon |
0:560a6744936c
|
475
|
if (c == '|') break; /* Reject | */
|
| simon |
0:560a6744936c
|
476
|
if (c >= '[' && c <= ']') break;/* Reject [ \ ] */
|
| simon |
0:560a6744936c
|
477
|
if (_USE_NTFLAG && c >= 'A' && c <= 'Z')
|
| simon |
0:560a6744936c
|
478
|
(t == 8) ? (b &= 0xF7) : (b &= 0xEF);
|
| simon |
0:560a6744936c
|
479
|
if (c >= 'a' && c <= 'z') { /* Convert to upper case */
|
| simon |
0:560a6744936c
|
480
|
c -= 0x20;
|
| simon |
0:560a6744936c
|
481
|
if (_USE_NTFLAG) (t == 8) ? (a |= 0x08) : (a |= 0x10);
|
| simon |
0:560a6744936c
|
482
|
}
|
| simon |
0:560a6744936c
|
483
|
}
|
| simon |
0:560a6744936c
|
484
|
md_l1:
|
| simon |
0:560a6744936c
|
485
|
a &= 0xFE;
|
| simon |
0:560a6744936c
|
486
|
md_l2:
|
| simon |
0:560a6744936c
|
487
|
if (n >= t) break;
|
| simon |
0:560a6744936c
|
488
|
dirname[n++] = c;
|
| simon |
0:560a6744936c
|
489
|
}
|
| simon |
0:560a6744936c
|
490
|
return 1;
|
| simon |
0:560a6744936c
|
491
|
}
|
| simon |
0:560a6744936c
|
492
|
|
| simon |
0:560a6744936c
|
493
|
|
| simon |
0:560a6744936c
|
494
|
|
| simon |
0:560a6744936c
|
495
|
|
| simon |
0:560a6744936c
|
496
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
497
|
/* Trace a file path */
|
| simon |
0:560a6744936c
|
498
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
499
|
|
| simon |
0:560a6744936c
|
500
|
static
|
| simon |
0:560a6744936c
|
501
|
FRESULT trace_path ( /* FR_OK(0): successful, !=0: error code */
|
| simon |
0:560a6744936c
|
502
|
FATFS_DIR *dj, /* Pointer to directory object to return last directory */
|
| simon |
0:560a6744936c
|
503
|
char *fn, /* Pointer to last segment name to return {file(8),ext(3),attr(1)} */
|
| simon |
0:560a6744936c
|
504
|
const char *path, /* Full-path string to trace a file or directory */
|
| simon |
0:560a6744936c
|
505
|
BYTE **dir /* Pointer to pointer to found entry to retutn */
|
| simon |
0:560a6744936c
|
506
|
)
|
| simon |
0:560a6744936c
|
507
|
{
|
| simon |
0:560a6744936c
|
508
|
DWORD clust;
|
| simon |
0:560a6744936c
|
509
|
char ds;
|
| simon |
0:560a6744936c
|
510
|
BYTE *dptr = NULL;
|
| simon |
0:560a6744936c
|
511
|
FATFS *fs = dj->fs;
|
| simon |
0:560a6744936c
|
512
|
|
| simon |
0:560a6744936c
|
513
|
|
| simon |
0:560a6744936c
|
514
|
/* Initialize directory object */
|
| simon |
0:560a6744936c
|
515
|
clust = fs->dirbase;
|
| simon |
0:560a6744936c
|
516
|
if (fs->fs_type == FS_FAT32) {
|
| simon |
0:560a6744936c
|
517
|
dj->clust = dj->sclust = clust;
|
| simon |
0:560a6744936c
|
518
|
dj->sect = clust2sect(fs, clust);
|
| simon |
0:560a6744936c
|
519
|
} else {
|
| simon |
0:560a6744936c
|
520
|
dj->clust = dj->sclust = 0;
|
| simon |
0:560a6744936c
|
521
|
dj->sect = clust;
|
| simon |
0:560a6744936c
|
522
|
}
|
| simon |
0:560a6744936c
|
523
|
dj->index = 0;
|
| simon |
0:560a6744936c
|
524
|
|
| simon |
0:560a6744936c
|
525
|
if (*path == '\0') { /* Null path means the root directory */
|
| simon |
0:560a6744936c
|
526
|
*dir = NULL; return FR_OK;
|
| simon |
0:560a6744936c
|
527
|
}
|
| simon |
0:560a6744936c
|
528
|
|
| simon |
0:560a6744936c
|
529
|
for (;;) {
|
| simon |
0:560a6744936c
|
530
|
ds = make_dirfile(&path, fn); /* Get a paragraph into fn[] */
|
| simon |
0:560a6744936c
|
531
|
if (ds == 1) return FR_INVALID_NAME;
|
| simon |
0:560a6744936c
|
532
|
for (;;) {
|
| simon |
0:560a6744936c
|
533
|
if (!move_window(fs, dj->sect)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
534
|
dptr = &fs->win[(dj->index & ((SS(fs) - 1) / 32)) * 32]; /* Pointer to the directory entry */
|
| simon |
0:560a6744936c
|
535
|
if (dptr[DIR_Name] == 0) /* Has it reached to end of dir? */
|
| simon |
0:560a6744936c
|
536
|
return !ds ? FR_NO_FILE : FR_NO_PATH;
|
| simon |
0:560a6744936c
|
537
|
if (dptr[DIR_Name] != 0xE5 /* Matched? */
|
| simon |
0:560a6744936c
|
538
|
&& !(dptr[DIR_Attr] & AM_VOL)
|
| simon |
0:560a6744936c
|
539
|
&& !memcmp(&dptr[DIR_Name], fn, 8+3) ) break;
|
| simon |
0:560a6744936c
|
540
|
if (!next_dir_entry(dj)) /* Next directory pointer */
|
| simon |
0:560a6744936c
|
541
|
return !ds ? FR_NO_FILE : FR_NO_PATH;
|
| simon |
0:560a6744936c
|
542
|
}
|
| simon |
0:560a6744936c
|
543
|
if (!ds) { *dir = dptr; return FR_OK; } /* Matched with end of path */
|
| simon |
0:560a6744936c
|
544
|
if (!(dptr[DIR_Attr] & AM_DIR)) return FR_NO_PATH; /* Cannot trace because it is a file */
|
| simon |
0:560a6744936c
|
545
|
clust = ((DWORD)LD_WORD(&dptr[DIR_FstClusHI]) << 16) | LD_WORD(&dptr[DIR_FstClusLO]); /* Get cluster# of the directory */
|
| simon |
0:560a6744936c
|
546
|
dj->clust = dj->sclust = clust; /* Restart scanning at the new directory */
|
| simon |
0:560a6744936c
|
547
|
dj->sect = clust2sect(fs, clust);
|
| simon |
0:560a6744936c
|
548
|
dj->index = 2;
|
| simon |
0:560a6744936c
|
549
|
}
|
| simon |
0:560a6744936c
|
550
|
}
|
| simon |
0:560a6744936c
|
551
|
|
| simon |
0:560a6744936c
|
552
|
|
| simon |
0:560a6744936c
|
553
|
|
| simon |
0:560a6744936c
|
554
|
|
| simon |
0:560a6744936c
|
555
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
556
|
/* Reserve a directory entry */
|
| simon |
0:560a6744936c
|
557
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
558
|
|
| simon |
0:560a6744936c
|
559
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
560
|
static
|
| simon |
0:560a6744936c
|
561
|
FRESULT reserve_direntry ( /* FR_OK: successful, FR_DENIED: no free entry, FR_RW_ERROR: a disk error occured */
|
| simon |
0:560a6744936c
|
562
|
FATFS_DIR *dj, /* Target directory to create new entry */
|
| simon |
0:560a6744936c
|
563
|
BYTE **dir /* Pointer to pointer to created entry to retutn */
|
| simon |
0:560a6744936c
|
564
|
)
|
| simon |
0:560a6744936c
|
565
|
{
|
| simon |
0:560a6744936c
|
566
|
DWORD clust, sector;
|
| simon |
0:560a6744936c
|
567
|
BYTE c, n, *dptr;
|
| simon |
0:560a6744936c
|
568
|
FATFS *fs = dj->fs;
|
| simon |
0:560a6744936c
|
569
|
|
| simon |
0:560a6744936c
|
570
|
|
| simon |
0:560a6744936c
|
571
|
/* Re-initialize directory object */
|
| simon |
0:560a6744936c
|
572
|
clust = dj->sclust;
|
| simon |
0:560a6744936c
|
573
|
if (clust != 0) { /* Dyanmic directory table */
|
| simon |
0:560a6744936c
|
574
|
dj->clust = clust;
|
| simon |
0:560a6744936c
|
575
|
dj->sect = clust2sect(fs, clust);
|
| simon |
0:560a6744936c
|
576
|
} else { /* Static directory table */
|
| simon |
0:560a6744936c
|
577
|
dj->sect = fs->dirbase;
|
| simon |
0:560a6744936c
|
578
|
}
|
| simon |
0:560a6744936c
|
579
|
dj->index = 0;
|
| simon |
0:560a6744936c
|
580
|
|
| simon |
0:560a6744936c
|
581
|
do {
|
| simon |
0:560a6744936c
|
582
|
if (!move_window(fs, dj->sect)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
583
|
dptr = &fs->win[(dj->index & ((SS(dj->fs) - 1) / 32)) * 32]; /* Pointer to the directory entry */
|
| simon |
0:560a6744936c
|
584
|
c = dptr[DIR_Name];
|
| simon |
0:560a6744936c
|
585
|
if (c == 0 || c == 0xE5) { /* Found an empty entry */
|
| simon |
0:560a6744936c
|
586
|
*dir = dptr; return FR_OK;
|
| simon |
0:560a6744936c
|
587
|
}
|
| simon |
0:560a6744936c
|
588
|
} while (next_dir_entry(dj)); /* Next directory pointer */
|
| simon |
0:560a6744936c
|
589
|
/* Reached to end of the directory table */
|
| simon |
0:560a6744936c
|
590
|
|
| simon |
0:560a6744936c
|
591
|
/* Abort when it is a static table or could not stretch dynamic table */
|
| simon |
0:560a6744936c
|
592
|
if (clust == 0 || ((clust = create_chain(fs, dj->clust)) == 0)) return FR_DENIED;
|
| simon |
0:560a6744936c
|
593
|
if (clust == 1 || !move_window(fs, 0)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
594
|
|
| simon |
0:560a6744936c
|
595
|
/* Cleanup the expanded table */
|
| simon |
0:560a6744936c
|
596
|
fs->winsect = sector = clust2sect(fs, clust);
|
| simon |
0:560a6744936c
|
597
|
memset(fs->win, 0, SS(fs));
|
| simon |
0:560a6744936c
|
598
|
for (n = fs->csize; n; n--) {
|
| simon |
0:560a6744936c
|
599
|
if (disk_write(fs->drive, fs->win, sector, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
600
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
601
|
sector++;
|
| simon |
0:560a6744936c
|
602
|
}
|
| simon |
0:560a6744936c
|
603
|
fs->winflag = 1;
|
| simon |
0:560a6744936c
|
604
|
*dir = fs->win;
|
| simon |
0:560a6744936c
|
605
|
|
| simon |
0:560a6744936c
|
606
|
return FR_OK;
|
| simon |
0:560a6744936c
|
607
|
}
|
| simon |
0:560a6744936c
|
608
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
609
|
|
| simon |
0:560a6744936c
|
610
|
|
| simon |
0:560a6744936c
|
611
|
|
| simon |
0:560a6744936c
|
612
|
|
| simon |
0:560a6744936c
|
613
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
614
|
/* Load boot record and check if it is an FAT boot record */
|
| simon |
0:560a6744936c
|
615
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
616
|
|
| simon |
0:560a6744936c
|
617
|
static
|
| simon |
0:560a6744936c
|
618
|
BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record or error */
|
| simon |
0:560a6744936c
|
619
|
FATFS *fs, /* File system object */
|
| simon |
0:560a6744936c
|
620
|
DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
|
| simon |
0:560a6744936c
|
621
|
)
|
| simon |
0:560a6744936c
|
622
|
{
|
| simon |
0:560a6744936c
|
623
|
if (disk_read(fs->drive, fs->win, sect, 1) != RES_OK) /* Load boot record */
|
| simon |
0:560a6744936c
|
624
|
return 2;
|
| simon |
0:560a6744936c
|
625
|
if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */
|
| simon |
0:560a6744936c
|
626
|
return 2;
|
| simon |
0:560a6744936c
|
627
|
|
| simon |
0:560a6744936c
|
628
|
if (!memcmp(&fs->win[BS_FilSysType], "FAT", 3)) /* Check FAT signature */
|
| simon |
0:560a6744936c
|
629
|
return 0;
|
| simon |
0:560a6744936c
|
630
|
if (!memcmp(&fs->win[BS_FilSysType32], "FAT32", 5) && !(fs->win[BPB_ExtFlags] & 0x80))
|
| simon |
0:560a6744936c
|
631
|
return 0;
|
| simon |
0:560a6744936c
|
632
|
|
| simon |
0:560a6744936c
|
633
|
return 1;
|
| simon |
0:560a6744936c
|
634
|
}
|
| simon |
0:560a6744936c
|
635
|
|
| simon |
0:560a6744936c
|
636
|
|
| simon |
0:560a6744936c
|
637
|
|
| simon |
0:560a6744936c
|
638
|
|
| simon |
0:560a6744936c
|
639
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
640
|
/* Make sure that the file system is valid */
|
| simon |
0:560a6744936c
|
641
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
642
|
|
| simon |
0:560a6744936c
|
643
|
static
|
| simon |
0:560a6744936c
|
644
|
FRESULT auto_mount ( /* FR_OK(0): successful, !=0: any error occured */
|
| simon |
0:560a6744936c
|
645
|
const char **path, /* Pointer to pointer to the path name (drive number) */
|
| simon |
0:560a6744936c
|
646
|
FATFS **rfs, /* Pointer to pointer to the found file system object */
|
| simon |
0:560a6744936c
|
647
|
BYTE chk_wp /* !=0: Check media write protection for write access */
|
| simon |
0:560a6744936c
|
648
|
)
|
| simon |
0:560a6744936c
|
649
|
{
|
| simon |
0:560a6744936c
|
650
|
BYTE drv, fmt, *tbl;
|
| simon |
0:560a6744936c
|
651
|
DSTATUS stat;
|
| simon |
0:560a6744936c
|
652
|
DWORD bootsect, fatsize, totalsect, maxclust;
|
| simon |
0:560a6744936c
|
653
|
const char *p = *path;
|
| simon |
0:560a6744936c
|
654
|
FATFS *fs;
|
| simon |
0:560a6744936c
|
655
|
|
| simon |
0:560a6744936c
|
656
|
|
| simon |
0:560a6744936c
|
657
|
/* Get drive number from the path name */
|
| simon |
0:560a6744936c
|
658
|
while (*p == ' ') p++; /* Strip leading spaces */
|
| simon |
0:560a6744936c
|
659
|
drv = p[0] - '0'; /* Is there a drive number? */
|
| simon |
0:560a6744936c
|
660
|
if (drv <= 9 && p[1] == ':')
|
| simon |
0:560a6744936c
|
661
|
p += 2; /* Found a drive number, get and strip it */
|
| simon |
0:560a6744936c
|
662
|
else
|
| simon |
0:560a6744936c
|
663
|
drv = 0; /* No drive number is given, use drive number 0 as default */
|
| simon |
0:560a6744936c
|
664
|
if (*p == '/') p++; /* Strip heading slash */
|
| simon |
0:560a6744936c
|
665
|
*path = p; /* Return pointer to the path name */
|
| simon |
0:560a6744936c
|
666
|
|
| simon |
0:560a6744936c
|
667
|
/* Check if the drive number is valid or not */
|
| simon |
0:560a6744936c
|
668
|
if (drv >= _DRIVES) return FR_INVALID_DRIVE; /* Is the drive number valid? */
|
| simon |
0:560a6744936c
|
669
|
*rfs = fs = FatFs[drv]; /* Returen pointer to the corresponding file system object */
|
| simon |
0:560a6744936c
|
670
|
if (!fs) return FR_NOT_ENABLED; /* Is the file system object registered? */
|
| simon |
0:560a6744936c
|
671
|
|
| simon |
0:560a6744936c
|
672
|
if (fs->fs_type) { /* If the logical drive has been mounted */
|
| simon |
0:560a6744936c
|
673
|
stat = disk_status(fs->drive);
|
| simon |
0:560a6744936c
|
674
|
if (!(stat & STA_NOINIT)) { /* and physical drive is kept initialized (has not been changed), */
|
| simon |
0:560a6744936c
|
675
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
676
|
if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
|
| simon |
0:560a6744936c
|
677
|
return FR_WRITE_PROTECTED;
|
| simon |
0:560a6744936c
|
678
|
#endif
|
| simon |
0:560a6744936c
|
679
|
return FR_OK; /* The file system object is valid */
|
| simon |
0:560a6744936c
|
680
|
}
|
| simon |
0:560a6744936c
|
681
|
}
|
| simon |
0:560a6744936c
|
682
|
|
| simon |
0:560a6744936c
|
683
|
/* The logical drive must be re-mounted. Following code attempts to mount the logical drive */
|
| simon |
0:560a6744936c
|
684
|
|
| simon |
0:560a6744936c
|
685
|
memset(fs, 0, sizeof(FATFS)); /* Clean-up the file system object */
|
| simon |
0:560a6744936c
|
686
|
fs->drive = LD2PD(drv); /* Bind the logical drive and a physical drive */
|
| simon |
0:560a6744936c
|
687
|
stat = disk_initialize(fs->drive); /* Initialize low level disk I/O layer */
|
| simon |
0:560a6744936c
|
688
|
if (stat & STA_NOINIT) /* Check if the drive is ready */
|
| simon |
0:560a6744936c
|
689
|
return FR_NOT_READY;
|
| simon |
0:560a6744936c
|
690
|
#if S_MAX_SIZ > 512 /* Get disk sector size if needed */
|
| simon |
0:560a6744936c
|
691
|
if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > S_MAX_SIZ)
|
| simon |
0:560a6744936c
|
692
|
return FR_NO_FILESYSTEM;
|
| simon |
0:560a6744936c
|
693
|
#endif
|
| simon |
0:560a6744936c
|
694
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
695
|
if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */
|
| simon |
0:560a6744936c
|
696
|
return FR_WRITE_PROTECTED;
|
| simon |
0:560a6744936c
|
697
|
#endif
|
| simon |
0:560a6744936c
|
698
|
/* Search FAT partition on the drive */
|
| simon |
0:560a6744936c
|
699
|
fmt = check_fs(fs, bootsect = 0); /* Check sector 0 as an SFD format */
|
| simon |
0:560a6744936c
|
700
|
if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */
|
| simon |
0:560a6744936c
|
701
|
/* Check a partition listed in top of the partition table */
|
| simon |
0:560a6744936c
|
702
|
tbl = &fs->win[MBR_Table + LD2PT(drv) * 16]; /* Partition table */
|
| simon |
0:560a6744936c
|
703
|
if (tbl[4]) { /* Is the partition existing? */
|
| simon |
0:560a6744936c
|
704
|
bootsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */
|
| simon |
0:560a6744936c
|
705
|
fmt = check_fs(fs, bootsect); /* Check the partition */
|
| simon |
0:560a6744936c
|
706
|
}
|
| simon |
0:560a6744936c
|
707
|
}
|
| simon |
0:560a6744936c
|
708
|
if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != SS(fs)) /* No valid FAT patition is found */
|
| simon |
0:560a6744936c
|
709
|
return FR_NO_FILESYSTEM;
|
| simon |
0:560a6744936c
|
710
|
|
| simon |
0:560a6744936c
|
711
|
/* Initialize the file system object */
|
| simon |
0:560a6744936c
|
712
|
fatsize = LD_WORD(&fs->win[BPB_FATSz16]); /* Number of sectors per FAT */
|
| simon |
0:560a6744936c
|
713
|
if (!fatsize) fatsize = LD_DWORD(&fs->win[BPB_FATSz32]);
|
| simon |
0:560a6744936c
|
714
|
fs->sects_fat = fatsize;
|
| simon |
0:560a6744936c
|
715
|
fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
|
| simon |
0:560a6744936c
|
716
|
fatsize *= fs->n_fats; /* (Number of sectors in FAT area) */
|
| simon |
0:560a6744936c
|
717
|
fs->fatbase = bootsect + LD_WORD(&fs->win[BPB_RsvdSecCnt]); /* FAT start sector (lba) */
|
| simon |
0:560a6744936c
|
718
|
fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
|
| simon |
0:560a6744936c
|
719
|
fs->n_rootdir = LD_WORD(&fs->win[BPB_RootEntCnt]); /* Nmuber of root directory entries */
|
| simon |
0:560a6744936c
|
720
|
totalsect = LD_WORD(&fs->win[BPB_TotSec16]); /* Number of sectors on the file system */
|
| simon |
0:560a6744936c
|
721
|
if (!totalsect) totalsect = LD_DWORD(&fs->win[BPB_TotSec32]);
|
| simon |
0:560a6744936c
|
722
|
fs->max_clust = maxclust = (totalsect /* max_clust = Last cluster# + 1 */
|
| simon |
0:560a6744936c
|
723
|
- LD_WORD(&fs->win[BPB_RsvdSecCnt]) - fatsize - fs->n_rootdir / (SS(fs)/32)
|
| simon |
0:560a6744936c
|
724
|
) / fs->csize + 2;
|
| simon |
0:560a6744936c
|
725
|
|
| simon |
0:560a6744936c
|
726
|
fmt = FS_FAT12; /* Determine the FAT sub type */
|
| simon |
0:560a6744936c
|
727
|
if (maxclust >= 0xFF7) fmt = FS_FAT16;
|
| simon |
0:560a6744936c
|
728
|
if (maxclust >= 0xFFF7) fmt = FS_FAT32;
|
| simon |
0:560a6744936c
|
729
|
|
| simon |
0:560a6744936c
|
730
|
if (fmt == FS_FAT32)
|
| simon |
0:560a6744936c
|
731
|
fs->dirbase = LD_DWORD(&fs->win[BPB_RootClus]); /* Root directory start cluster */
|
| simon |
0:560a6744936c
|
732
|
else
|
| simon |
0:560a6744936c
|
733
|
fs->dirbase = fs->fatbase + fatsize; /* Root directory start sector (lba) */
|
| simon |
0:560a6744936c
|
734
|
fs->database = fs->fatbase + fatsize + fs->n_rootdir / (SS(fs)/32); /* Data start sector (lba) */
|
| simon |
0:560a6744936c
|
735
|
|
| simon |
0:560a6744936c
|
736
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
737
|
/* Initialize allocation information */
|
| simon |
0:560a6744936c
|
738
|
fs->free_clust = 0xFFFFFFFF;
|
| simon |
0:560a6744936c
|
739
|
#if _USE_FSINFO
|
| simon |
0:560a6744936c
|
740
|
/* Get fsinfo if needed */
|
| simon |
0:560a6744936c
|
741
|
if (fmt == FS_FAT32) {
|
| simon |
0:560a6744936c
|
742
|
fs->fsi_sector = bootsect + LD_WORD(&fs->win[BPB_FSInfo]);
|
| simon |
0:560a6744936c
|
743
|
if (disk_read(fs->drive, fs->win, fs->fsi_sector, 1) == RES_OK &&
|
| simon |
0:560a6744936c
|
744
|
LD_WORD(&fs->win[BS_55AA]) == 0xAA55 &&
|
| simon |
0:560a6744936c
|
745
|
LD_DWORD(&fs->win[FSI_LeadSig]) == 0x41615252 &&
|
| simon |
0:560a6744936c
|
746
|
LD_DWORD(&fs->win[FSI_StrucSig]) == 0x61417272) {
|
| simon |
0:560a6744936c
|
747
|
fs->last_clust = LD_DWORD(&fs->win[FSI_Nxt_Free]);
|
| simon |
0:560a6744936c
|
748
|
fs->free_clust = LD_DWORD(&fs->win[FSI_Free_Count]);
|
| simon |
0:560a6744936c
|
749
|
}
|
| simon |
0:560a6744936c
|
750
|
}
|
| simon |
0:560a6744936c
|
751
|
#endif
|
| simon |
0:560a6744936c
|
752
|
#endif
|
| simon |
0:560a6744936c
|
753
|
|
| simon |
0:560a6744936c
|
754
|
fs->fs_type = fmt; /* FAT syb-type */
|
| simon |
0:560a6744936c
|
755
|
fs->id = ++fsid; /* File system mount ID */
|
| simon |
0:560a6744936c
|
756
|
return FR_OK;
|
| simon |
0:560a6744936c
|
757
|
}
|
| simon |
0:560a6744936c
|
758
|
|
| simon |
0:560a6744936c
|
759
|
|
| simon |
0:560a6744936c
|
760
|
|
| simon |
0:560a6744936c
|
761
|
|
| simon |
0:560a6744936c
|
762
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
763
|
/* Check if the file/dir object is valid or not */
|
| simon |
0:560a6744936c
|
764
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
765
|
|
| simon |
0:560a6744936c
|
766
|
static
|
| simon |
0:560a6744936c
|
767
|
FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
|
| simon |
0:560a6744936c
|
768
|
const FATFS *fs, /* Pointer to the file system object */
|
| simon |
0:560a6744936c
|
769
|
WORD id /* Member id of the target object to be checked */
|
| simon |
0:560a6744936c
|
770
|
)
|
| simon |
0:560a6744936c
|
771
|
{
|
| simon |
0:560a6744936c
|
772
|
if (!fs || !fs->fs_type || fs->id != id)
|
| simon |
0:560a6744936c
|
773
|
return FR_INVALID_OBJECT;
|
| simon |
0:560a6744936c
|
774
|
if (disk_status(fs->drive) & STA_NOINIT)
|
| simon |
0:560a6744936c
|
775
|
return FR_NOT_READY;
|
| simon |
0:560a6744936c
|
776
|
|
| simon |
0:560a6744936c
|
777
|
return FR_OK;
|
| simon |
0:560a6744936c
|
778
|
}
|
| simon |
0:560a6744936c
|
779
|
|
| simon |
0:560a6744936c
|
780
|
|
| simon |
0:560a6744936c
|
781
|
|
| simon |
0:560a6744936c
|
782
|
|
| simon |
0:560a6744936c
|
783
|
/*--------------------------------------------------------------------------
|
| simon |
0:560a6744936c
|
784
|
|
| simon |
0:560a6744936c
|
785
|
Public Functions
|
| simon |
0:560a6744936c
|
786
|
|
| simon |
0:560a6744936c
|
787
|
--------------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
788
|
|
| simon |
0:560a6744936c
|
789
|
|
| simon |
0:560a6744936c
|
790
|
|
| simon |
0:560a6744936c
|
791
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
792
|
/* Mount/Unmount a Locical Drive */
|
| simon |
0:560a6744936c
|
793
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
794
|
|
| simon |
0:560a6744936c
|
795
|
FRESULT f_mount (
|
| simon |
0:560a6744936c
|
796
|
BYTE drv, /* Logical drive number to be mounted/unmounted */
|
| simon |
0:560a6744936c
|
797
|
FATFS *fs /* Pointer to new file system object (NULL for unmount)*/
|
| simon |
0:560a6744936c
|
798
|
)
|
| simon |
0:560a6744936c
|
799
|
{
|
| simon |
0:560a6744936c
|
800
|
if (drv >= _DRIVES) return FR_INVALID_DRIVE;
|
| simon |
0:560a6744936c
|
801
|
|
| simon |
0:560a6744936c
|
802
|
if (FatFs[drv]) FatFs[drv]->fs_type = 0; /* Clear old object */
|
| simon |
0:560a6744936c
|
803
|
|
| simon |
0:560a6744936c
|
804
|
FatFs[drv] = fs; /* Register and clear new object */
|
| simon |
0:560a6744936c
|
805
|
if (fs) fs->fs_type = 0;
|
| simon |
0:560a6744936c
|
806
|
|
| simon |
0:560a6744936c
|
807
|
return FR_OK;
|
| simon |
0:560a6744936c
|
808
|
}
|
| simon |
0:560a6744936c
|
809
|
|
| simon |
0:560a6744936c
|
810
|
|
| simon |
0:560a6744936c
|
811
|
|
| simon |
0:560a6744936c
|
812
|
|
| simon |
0:560a6744936c
|
813
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
814
|
/* Open or Create a File */
|
| simon |
0:560a6744936c
|
815
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
816
|
|
| simon |
0:560a6744936c
|
817
|
FRESULT f_open (
|
| simon |
0:560a6744936c
|
818
|
FIL *fp, /* Pointer to the blank file object */
|
| simon |
0:560a6744936c
|
819
|
const char *path, /* Pointer to the file name */
|
| simon |
0:560a6744936c
|
820
|
BYTE mode /* Access mode and file open mode flags */
|
| simon |
0:560a6744936c
|
821
|
)
|
| simon |
0:560a6744936c
|
822
|
{
|
| simon |
0:560a6744936c
|
823
|
FRESULT res;
|
| simon |
0:560a6744936c
|
824
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
825
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
826
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
827
|
|
| simon |
0:560a6744936c
|
828
|
|
| simon |
0:560a6744936c
|
829
|
fp->fs = NULL; /* Clear file object */
|
| simon |
0:560a6744936c
|
830
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
831
|
mode &= (FA_READ|FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW);
|
| simon |
0:560a6744936c
|
832
|
res = auto_mount(&path, &dj.fs, (BYTE)(mode & (FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW)));
|
| simon |
0:560a6744936c
|
833
|
#else
|
| simon |
0:560a6744936c
|
834
|
mode &= FA_READ;
|
| simon |
0:560a6744936c
|
835
|
res = auto_mount(&path, &dj.fs, 0);
|
| simon |
0:560a6744936c
|
836
|
#endif
|
| simon |
0:560a6744936c
|
837
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
838
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
839
|
|
| simon |
0:560a6744936c
|
840
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
841
|
/* Create or Open a file */
|
| simon |
0:560a6744936c
|
842
|
if (mode & (FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW)) {
|
| simon |
0:560a6744936c
|
843
|
DWORD ps, rs;
|
| simon |
0:560a6744936c
|
844
|
if (res != FR_OK) { /* No file, create new */
|
| simon |
0:560a6744936c
|
845
|
if (res != FR_NO_FILE) return res;
|
| simon |
0:560a6744936c
|
846
|
res = reserve_direntry(&dj, &dir);
|
| simon |
0:560a6744936c
|
847
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
848
|
memset(dir, 0, 32); /* Initialize the new entry with open name */
|
| simon |
0:560a6744936c
|
849
|
memcpy(&dir[DIR_Name], fn, 8+3);
|
| simon |
0:560a6744936c
|
850
|
dir[DIR_NTres] = fn[11];
|
| simon |
0:560a6744936c
|
851
|
mode |= FA_CREATE_ALWAYS;
|
| simon |
0:560a6744936c
|
852
|
}
|
| simon |
0:560a6744936c
|
853
|
else { /* Any object is already existing */
|
| simon |
0:560a6744936c
|
854
|
if (mode & FA_CREATE_NEW) /* Cannot create new */
|
| simon |
0:560a6744936c
|
855
|
return FR_EXIST;
|
| simon |
0:560a6744936c
|
856
|
if (!dir || (dir[DIR_Attr] & (AM_RDO|AM_DIR))) /* Cannot overwrite it (R/O or DIR) */
|
| simon |
0:560a6744936c
|
857
|
return FR_DENIED;
|
| simon |
0:560a6744936c
|
858
|
if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero if needed */
|
| simon |
0:560a6744936c
|
859
|
rs = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); /* Get start cluster */
|
| simon |
0:560a6744936c
|
860
|
ST_WORD(&dir[DIR_FstClusHI], 0); /* cluster = 0 */
|
| simon |
0:560a6744936c
|
861
|
ST_WORD(&dir[DIR_FstClusLO], 0);
|
| simon |
0:560a6744936c
|
862
|
ST_DWORD(&dir[DIR_FileSize], 0); /* size = 0 */
|
| simon |
0:560a6744936c
|
863
|
dj.fs->winflag = 1;
|
| simon |
0:560a6744936c
|
864
|
ps = dj.fs->winsect; /* Remove the cluster chain */
|
| simon |
0:560a6744936c
|
865
|
if (!remove_chain(dj.fs, rs) || !move_window(dj.fs, ps))
|
| simon |
0:560a6744936c
|
866
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
867
|
dj.fs->last_clust = rs - 1; /* Reuse the cluster hole */
|
| simon |
0:560a6744936c
|
868
|
}
|
| simon |
0:560a6744936c
|
869
|
}
|
| simon |
0:560a6744936c
|
870
|
if (mode & FA_CREATE_ALWAYS) {
|
| simon |
0:560a6744936c
|
871
|
dir[DIR_Attr] = 0; /* Reset attribute */
|
| simon |
0:560a6744936c
|
872
|
ps = get_fattime();
|
| simon |
0:560a6744936c
|
873
|
ST_DWORD(&dir[DIR_CrtTime], ps); /* Created time */
|
| simon |
0:560a6744936c
|
874
|
dj.fs->winflag = 1;
|
| simon |
0:560a6744936c
|
875
|
mode |= FA__WRITTEN; /* Set file changed flag */
|
| simon |
0:560a6744936c
|
876
|
}
|
| simon |
0:560a6744936c
|
877
|
}
|
| simon |
0:560a6744936c
|
878
|
/* Open an existing file */
|
| simon |
0:560a6744936c
|
879
|
else {
|
| simon |
0:560a6744936c
|
880
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
881
|
if (res != FR_OK) return res; /* Trace failed */
|
| simon |
0:560a6744936c
|
882
|
if (!dir || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */
|
| simon |
0:560a6744936c
|
883
|
return FR_NO_FILE;
|
| simon |
0:560a6744936c
|
884
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
885
|
if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */
|
| simon |
0:560a6744936c
|
886
|
return FR_DENIED;
|
| simon |
0:560a6744936c
|
887
|
}
|
| simon |
0:560a6744936c
|
888
|
fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
|
| simon |
0:560a6744936c
|
889
|
fp->dir_ptr = dir;
|
| simon |
0:560a6744936c
|
890
|
#endif
|
| simon |
0:560a6744936c
|
891
|
fp->flag = mode; /* File access mode */
|
| simon |
0:560a6744936c
|
892
|
fp->org_clust = /* File start cluster */
|
| simon |
0:560a6744936c
|
893
|
((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]);
|
| simon |
0:560a6744936c
|
894
|
fp->fsize = LD_DWORD(&dir[DIR_FileSize]); /* File size */
|
| simon |
0:560a6744936c
|
895
|
fp->fptr = 0; fp->csect = 255; /* File pointer */
|
| simon |
0:560a6744936c
|
896
|
fp->curr_sect = 0;
|
| simon |
0:560a6744936c
|
897
|
fp->fs = dj.fs; fp->id = dj.fs->id; /* Owner file system object of the file */
|
| simon |
0:560a6744936c
|
898
|
|
| simon |
0:560a6744936c
|
899
|
return FR_OK;
|
| simon |
0:560a6744936c
|
900
|
}
|
| simon |
0:560a6744936c
|
901
|
|
| simon |
0:560a6744936c
|
902
|
|
| simon |
0:560a6744936c
|
903
|
|
| simon |
0:560a6744936c
|
904
|
|
| simon |
0:560a6744936c
|
905
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
906
|
/* Read File */
|
| simon |
0:560a6744936c
|
907
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
908
|
|
| simon |
0:560a6744936c
|
909
|
FRESULT f_read (
|
| simon |
0:560a6744936c
|
910
|
FIL *fp, /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
911
|
void *buff, /* Pointer to data buffer */
|
| simon |
0:560a6744936c
|
912
|
UINT btr, /* Number of bytes to read */
|
| simon |
0:560a6744936c
|
913
|
UINT *br /* Pointer to number of bytes read */
|
| simon |
0:560a6744936c
|
914
|
)
|
| simon |
0:560a6744936c
|
915
|
{
|
| simon |
0:560a6744936c
|
916
|
FRESULT res;
|
| simon |
0:560a6744936c
|
917
|
DWORD clust, sect, remain;
|
| simon |
0:560a6744936c
|
918
|
UINT rcnt, cc;
|
| simon |
0:560a6744936c
|
919
|
BYTE *rbuff = (BYTE*)buff;
|
| simon |
0:560a6744936c
|
920
|
|
| simon |
0:560a6744936c
|
921
|
|
| simon |
0:560a6744936c
|
922
|
*br = 0;
|
| simon |
0:560a6744936c
|
923
|
res = validate(fp->fs, fp->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
924
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
925
|
if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */
|
| simon |
0:560a6744936c
|
926
|
if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */
|
| simon |
0:560a6744936c
|
927
|
remain = fp->fsize - fp->fptr;
|
| simon |
0:560a6744936c
|
928
|
if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
|
| simon |
0:560a6744936c
|
929
|
|
| simon |
0:560a6744936c
|
930
|
for ( ; btr; /* Repeat until all data transferred */
|
| simon |
0:560a6744936c
|
931
|
rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
|
| simon |
0:560a6744936c
|
932
|
if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
|
| simon |
0:560a6744936c
|
933
|
if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */
|
| simon |
0:560a6744936c
|
934
|
clust = (fp->fptr == 0) ? /* On the top of the file? */
|
| simon |
0:560a6744936c
|
935
|
fp->org_clust : get_cluster(fp->fs, fp->curr_clust);
|
| simon |
0:560a6744936c
|
936
|
if (clust < 2 || clust >= fp->fs->max_clust) goto fr_error;
|
| simon |
0:560a6744936c
|
937
|
fp->curr_clust = clust; /* Update current cluster */
|
| simon |
0:560a6744936c
|
938
|
fp->csect = 0; /* Reset sector address in the cluster */
|
| simon |
0:560a6744936c
|
939
|
}
|
| simon |
0:560a6744936c
|
940
|
sect = clust2sect(fp->fs, fp->curr_clust) + fp->csect; /* Get current sector */
|
| simon |
0:560a6744936c
|
941
|
cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
|
| simon |
0:560a6744936c
|
942
|
if (cc) { /* Read maximum contiguous sectors directly */
|
| simon |
0:560a6744936c
|
943
|
if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */
|
| simon |
0:560a6744936c
|
944
|
cc = fp->fs->csize - fp->csect;
|
| simon |
0:560a6744936c
|
945
|
if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK)
|
| simon |
0:560a6744936c
|
946
|
goto fr_error;
|
| simon |
0:560a6744936c
|
947
|
fp->csect += (BYTE)cc; /* Next sector address in the cluster */
|
| simon |
0:560a6744936c
|
948
|
rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
|
| simon |
0:560a6744936c
|
949
|
continue;
|
| simon |
0:560a6744936c
|
950
|
}
|
| simon |
0:560a6744936c
|
951
|
if (sect != fp->curr_sect) { /* Is window offset changed? */
|
| simon |
0:560a6744936c
|
952
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
953
|
if (fp->flag & FA__DIRTY) { /* Write back file I/O buffer if needed */
|
| simon |
0:560a6744936c
|
954
|
if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
955
|
goto fr_error;
|
| simon |
0:560a6744936c
|
956
|
fp->flag &= (BYTE)~FA__DIRTY;
|
| simon |
0:560a6744936c
|
957
|
}
|
| simon |
0:560a6744936c
|
958
|
#endif
|
| simon |
0:560a6744936c
|
959
|
if (disk_read(fp->fs->drive, fp->buffer, sect, 1) != RES_OK) /* Fill file I/O buffer with file data */
|
| simon |
0:560a6744936c
|
960
|
goto fr_error;
|
| simon |
0:560a6744936c
|
961
|
fp->curr_sect = sect;
|
| simon |
0:560a6744936c
|
962
|
}
|
| simon |
0:560a6744936c
|
963
|
fp->csect++; /* Next sector address in the cluster */
|
| simon |
0:560a6744936c
|
964
|
}
|
| simon |
0:560a6744936c
|
965
|
rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector from file I/O buffer */
|
| simon |
0:560a6744936c
|
966
|
if (rcnt > btr) rcnt = btr;
|
| simon |
0:560a6744936c
|
967
|
memcpy(rbuff, &fp->buffer[fp->fptr % SS(fp->fs)], rcnt);
|
| simon |
0:560a6744936c
|
968
|
}
|
| simon |
0:560a6744936c
|
969
|
|
| simon |
0:560a6744936c
|
970
|
return FR_OK;
|
| simon |
0:560a6744936c
|
971
|
|
| simon |
0:560a6744936c
|
972
|
fr_error: /* Abort this file due to an unrecoverable error */
|
| simon |
0:560a6744936c
|
973
|
fp->flag |= FA__ERROR;
|
| simon |
0:560a6744936c
|
974
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
975
|
}
|
| simon |
0:560a6744936c
|
976
|
|
| simon |
0:560a6744936c
|
977
|
|
| simon |
0:560a6744936c
|
978
|
|
| simon |
0:560a6744936c
|
979
|
|
| simon |
0:560a6744936c
|
980
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
981
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
982
|
/* Write File */
|
| simon |
0:560a6744936c
|
983
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
984
|
|
| simon |
0:560a6744936c
|
985
|
FRESULT f_write (
|
| simon |
0:560a6744936c
|
986
|
FIL *fp, /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
987
|
const void *buff, /* Pointer to the data to be written */
|
| simon |
0:560a6744936c
|
988
|
UINT btw, /* Number of bytes to write */
|
| simon |
0:560a6744936c
|
989
|
UINT *bw /* Pointer to number of bytes written */
|
| simon |
0:560a6744936c
|
990
|
)
|
| simon |
0:560a6744936c
|
991
|
{
|
| simon |
0:560a6744936c
|
992
|
FRESULT res;
|
| simon |
0:560a6744936c
|
993
|
DWORD clust, sect;
|
| simon |
0:560a6744936c
|
994
|
UINT wcnt, cc;
|
| simon |
0:560a6744936c
|
995
|
const BYTE *wbuff = (const BYTE*)buff;
|
| simon |
0:560a6744936c
|
996
|
|
| simon |
0:560a6744936c
|
997
|
|
| simon |
0:560a6744936c
|
998
|
*bw = 0;
|
| simon |
0:560a6744936c
|
999
|
res = validate(fp->fs, fp->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
1000
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1001
|
if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */
|
| simon |
0:560a6744936c
|
1002
|
if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */
|
| simon |
0:560a6744936c
|
1003
|
if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */
|
| simon |
0:560a6744936c
|
1004
|
|
| simon |
0:560a6744936c
|
1005
|
for ( ; btw; /* Repeat until all data transferred */
|
| simon |
0:560a6744936c
|
1006
|
wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) {
|
| simon |
0:560a6744936c
|
1007
|
if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
|
| simon |
0:560a6744936c
|
1008
|
if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */
|
| simon |
0:560a6744936c
|
1009
|
if (fp->fptr == 0) { /* On the top of the file? */
|
| simon |
0:560a6744936c
|
1010
|
clust = fp->org_clust; /* Follow from the origin */
|
| simon |
0:560a6744936c
|
1011
|
if (clust == 0) /* When there is no cluster chain, */
|
| simon |
0:560a6744936c
|
1012
|
fp->org_clust = clust = create_chain(fp->fs, 0); /* Create a new cluster chain */
|
| simon |
0:560a6744936c
|
1013
|
} else { /* Middle or end of the file */
|
| simon |
0:560a6744936c
|
1014
|
clust = create_chain(fp->fs, fp->curr_clust); /* Trace or streach cluster chain */
|
| simon |
0:560a6744936c
|
1015
|
}
|
| simon |
0:560a6744936c
|
1016
|
if (clust == 0) break; /* Could not allocate a new cluster (disk full) */
|
| simon |
0:560a6744936c
|
1017
|
if (clust == 1 || clust >= fp->fs->max_clust) goto fw_error;
|
| simon |
0:560a6744936c
|
1018
|
fp->curr_clust = clust; /* Update current cluster */
|
| simon |
0:560a6744936c
|
1019
|
fp->csect = 0; /* Reset sector address in the cluster */
|
| simon |
0:560a6744936c
|
1020
|
}
|
| simon |
0:560a6744936c
|
1021
|
sect = clust2sect(fp->fs, fp->curr_clust) + fp->csect; /* Get current sector */
|
| simon |
0:560a6744936c
|
1022
|
cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */
|
| simon |
0:560a6744936c
|
1023
|
if (cc) { /* Write maximum contiguous sectors directly */
|
| simon |
0:560a6744936c
|
1024
|
if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */
|
| simon |
0:560a6744936c
|
1025
|
cc = fp->fs->csize - fp->csect;
|
| simon |
0:560a6744936c
|
1026
|
if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK)
|
| simon |
0:560a6744936c
|
1027
|
goto fw_error;
|
| simon |
0:560a6744936c
|
1028
|
fp->csect += (BYTE)cc; /* Next sector address in the cluster */
|
| simon |
0:560a6744936c
|
1029
|
wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
|
| simon |
0:560a6744936c
|
1030
|
continue;
|
| simon |
0:560a6744936c
|
1031
|
}
|
| simon |
0:560a6744936c
|
1032
|
if (sect != fp->curr_sect) { /* Is window offset changed? */
|
| simon |
0:560a6744936c
|
1033
|
if (fp->flag & FA__DIRTY) { /* Write back file I/O buffer if needed */
|
| simon |
0:560a6744936c
|
1034
|
if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1035
|
goto fw_error;
|
| simon |
0:560a6744936c
|
1036
|
fp->flag &= (BYTE)~FA__DIRTY;
|
| simon |
0:560a6744936c
|
1037
|
}
|
| simon |
0:560a6744936c
|
1038
|
if (fp->fptr < fp->fsize && /* Fill file I/O buffer with file data */
|
| simon |
0:560a6744936c
|
1039
|
disk_read(fp->fs->drive, fp->buffer, sect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1040
|
goto fw_error;
|
| simon |
0:560a6744936c
|
1041
|
fp->curr_sect = sect;
|
| simon |
0:560a6744936c
|
1042
|
}
|
| simon |
0:560a6744936c
|
1043
|
fp->csect++; /* Next sector address in the cluster */
|
| simon |
0:560a6744936c
|
1044
|
}
|
| simon |
0:560a6744936c
|
1045
|
wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */
|
| simon |
0:560a6744936c
|
1046
|
if (wcnt > btw) wcnt = btw;
|
| simon |
0:560a6744936c
|
1047
|
memcpy(&fp->buffer[fp->fptr % SS(fp->fs)], wbuff, wcnt);
|
| simon |
0:560a6744936c
|
1048
|
fp->flag |= FA__DIRTY;
|
| simon |
0:560a6744936c
|
1049
|
}
|
| simon |
0:560a6744936c
|
1050
|
|
| simon |
0:560a6744936c
|
1051
|
if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */
|
| simon |
0:560a6744936c
|
1052
|
fp->flag |= FA__WRITTEN; /* Set file changed flag */
|
| simon |
0:560a6744936c
|
1053
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1054
|
|
| simon |
0:560a6744936c
|
1055
|
fw_error: /* Abort this file due to an unrecoverable error */
|
| simon |
0:560a6744936c
|
1056
|
fp->flag |= FA__ERROR;
|
| simon |
0:560a6744936c
|
1057
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1058
|
}
|
| simon |
0:560a6744936c
|
1059
|
|
| simon |
0:560a6744936c
|
1060
|
|
| simon |
0:560a6744936c
|
1061
|
|
| simon |
0:560a6744936c
|
1062
|
|
| simon |
0:560a6744936c
|
1063
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1064
|
/* Synchronize the file object */
|
| simon |
0:560a6744936c
|
1065
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1066
|
|
| simon |
0:560a6744936c
|
1067
|
FRESULT f_sync (
|
| simon |
0:560a6744936c
|
1068
|
FIL *fp /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1069
|
)
|
| simon |
0:560a6744936c
|
1070
|
{
|
| simon |
0:560a6744936c
|
1071
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1072
|
DWORD tim;
|
| simon |
0:560a6744936c
|
1073
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
1074
|
|
| simon |
0:560a6744936c
|
1075
|
|
| simon |
0:560a6744936c
|
1076
|
res = validate(fp->fs, fp->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
1077
|
if (res == FR_OK) {
|
| simon |
0:560a6744936c
|
1078
|
if (fp->flag & FA__WRITTEN) { /* Has the file been written? */
|
| simon |
0:560a6744936c
|
1079
|
/* Write back data buffer if needed */
|
| simon |
0:560a6744936c
|
1080
|
if (fp->flag & FA__DIRTY) {
|
| simon |
0:560a6744936c
|
1081
|
if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1082
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1083
|
fp->flag &= (BYTE)~FA__DIRTY;
|
| simon |
0:560a6744936c
|
1084
|
}
|
| simon |
0:560a6744936c
|
1085
|
/* Update the directory entry */
|
| simon |
0:560a6744936c
|
1086
|
if (!move_window(fp->fs, fp->dir_sect))
|
| simon |
0:560a6744936c
|
1087
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1088
|
dir = fp->dir_ptr;
|
| simon |
0:560a6744936c
|
1089
|
dir[DIR_Attr] |= AM_ARC; /* Set archive bit */
|
| simon |
0:560a6744936c
|
1090
|
ST_DWORD(&dir[DIR_FileSize], fp->fsize); /* Update file size */
|
| simon |
0:560a6744936c
|
1091
|
ST_WORD(&dir[DIR_FstClusLO], fp->org_clust); /* Update start cluster */
|
| simon |
0:560a6744936c
|
1092
|
ST_WORD(&dir[DIR_FstClusHI], fp->org_clust >> 16);
|
| simon |
0:560a6744936c
|
1093
|
tim = get_fattime(); /* Updated time */
|
| simon |
0:560a6744936c
|
1094
|
ST_DWORD(&dir[DIR_WrtTime], tim);
|
| simon |
0:560a6744936c
|
1095
|
fp->flag &= (BYTE)~FA__WRITTEN;
|
| simon |
0:560a6744936c
|
1096
|
res = sync(fp->fs);
|
| simon |
0:560a6744936c
|
1097
|
}
|
| simon |
0:560a6744936c
|
1098
|
}
|
| simon |
0:560a6744936c
|
1099
|
return res;
|
| simon |
0:560a6744936c
|
1100
|
}
|
| simon |
0:560a6744936c
|
1101
|
|
| simon |
0:560a6744936c
|
1102
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
1103
|
|
| simon |
0:560a6744936c
|
1104
|
|
| simon |
0:560a6744936c
|
1105
|
|
| simon |
0:560a6744936c
|
1106
|
|
| simon |
0:560a6744936c
|
1107
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1108
|
/* Close File */
|
| simon |
0:560a6744936c
|
1109
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1110
|
|
| simon |
0:560a6744936c
|
1111
|
FRESULT f_close (
|
| simon |
0:560a6744936c
|
1112
|
FIL *fp /* Pointer to the file object to be closed */
|
| simon |
0:560a6744936c
|
1113
|
)
|
| simon |
0:560a6744936c
|
1114
|
{
|
| simon |
0:560a6744936c
|
1115
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1116
|
|
| simon |
0:560a6744936c
|
1117
|
|
| simon |
0:560a6744936c
|
1118
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1119
|
res = f_sync(fp);
|
| simon |
0:560a6744936c
|
1120
|
#else
|
| simon |
0:560a6744936c
|
1121
|
res = validate(fp->fs, fp->id);
|
| simon |
0:560a6744936c
|
1122
|
#endif
|
| simon |
0:560a6744936c
|
1123
|
if (res == FR_OK) fp->fs = NULL;
|
| simon |
0:560a6744936c
|
1124
|
return res;
|
| simon |
0:560a6744936c
|
1125
|
}
|
| simon |
0:560a6744936c
|
1126
|
|
| simon |
0:560a6744936c
|
1127
|
|
| simon |
0:560a6744936c
|
1128
|
|
| simon |
0:560a6744936c
|
1129
|
|
| simon |
0:560a6744936c
|
1130
|
#if _FS_MINIMIZE <= 2
|
| simon |
0:560a6744936c
|
1131
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1132
|
/* Seek File R/W Pointer */
|
| simon |
0:560a6744936c
|
1133
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1134
|
|
| simon |
0:560a6744936c
|
1135
|
FRESULT f_lseek (
|
| simon |
0:560a6744936c
|
1136
|
FIL *fp, /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1137
|
DWORD ofs /* File pointer from top of file */
|
| simon |
0:560a6744936c
|
1138
|
)
|
| simon |
0:560a6744936c
|
1139
|
{
|
| simon |
0:560a6744936c
|
1140
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1141
|
DWORD clust, csize, nsect, ifptr;
|
| simon |
0:560a6744936c
|
1142
|
|
| simon |
0:560a6744936c
|
1143
|
|
| simon |
0:560a6744936c
|
1144
|
res = validate(fp->fs, fp->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
1145
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1146
|
if (fp->flag & FA__ERROR) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1147
|
if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */
|
| simon |
0:560a6744936c
|
1148
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1149
|
&& !(fp->flag & FA_WRITE)
|
| simon |
0:560a6744936c
|
1150
|
#endif
|
| simon |
0:560a6744936c
|
1151
|
) ofs = fp->fsize;
|
| simon |
0:560a6744936c
|
1152
|
|
| simon |
0:560a6744936c
|
1153
|
ifptr = fp->fptr;
|
| simon |
0:560a6744936c
|
1154
|
fp->fptr = 0; fp->csect = 255;
|
| simon |
0:560a6744936c
|
1155
|
nsect = 0;
|
| simon |
0:560a6744936c
|
1156
|
if (ofs > 0) {
|
| simon |
0:560a6744936c
|
1157
|
csize = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
|
| simon |
0:560a6744936c
|
1158
|
if (ifptr > 0 &&
|
| simon |
0:560a6744936c
|
1159
|
(ofs - 1) / csize >= (ifptr - 1) / csize) {/* When seek to same or following cluster, */
|
| simon |
0:560a6744936c
|
1160
|
fp->fptr = (ifptr - 1) & ~(csize - 1); /* start from the current cluster */
|
| simon |
0:560a6744936c
|
1161
|
ofs -= fp->fptr;
|
| simon |
0:560a6744936c
|
1162
|
clust = fp->curr_clust;
|
| simon |
0:560a6744936c
|
1163
|
} else { /* When seek to back cluster, */
|
| simon |
0:560a6744936c
|
1164
|
clust = fp->org_clust; /* start from the first cluster */
|
| simon |
0:560a6744936c
|
1165
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1166
|
if (clust == 0) { /* If no cluster chain, create a new chain */
|
| simon |
0:560a6744936c
|
1167
|
clust = create_chain(fp->fs, 0);
|
| simon |
0:560a6744936c
|
1168
|
if (clust == 1) goto fk_error;
|
| simon |
0:560a6744936c
|
1169
|
fp->org_clust = clust;
|
| simon |
0:560a6744936c
|
1170
|
}
|
| simon |
0:560a6744936c
|
1171
|
#endif
|
| simon |
0:560a6744936c
|
1172
|
fp->curr_clust = clust;
|
| simon |
0:560a6744936c
|
1173
|
}
|
| simon |
0:560a6744936c
|
1174
|
if (clust != 0) {
|
| simon |
0:560a6744936c
|
1175
|
while (ofs > csize) { /* Cluster following loop */
|
| simon |
0:560a6744936c
|
1176
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1177
|
if (fp->flag & FA_WRITE) { /* Check if in write mode or not */
|
| simon |
0:560a6744936c
|
1178
|
clust = create_chain(fp->fs, clust); /* Force streached if in write mode */
|
| simon |
0:560a6744936c
|
1179
|
if (clust == 0) { /* When disk gets full, clip file size */
|
| simon |
0:560a6744936c
|
1180
|
ofs = csize; break;
|
| simon |
0:560a6744936c
|
1181
|
}
|
| simon |
0:560a6744936c
|
1182
|
} else
|
| simon |
0:560a6744936c
|
1183
|
#endif
|
| simon |
0:560a6744936c
|
1184
|
clust = get_cluster(fp->fs, clust); /* Follow cluster chain if not in write mode */
|
| simon |
0:560a6744936c
|
1185
|
if (clust < 2 || clust >= fp->fs->max_clust) goto fk_error;
|
| simon |
0:560a6744936c
|
1186
|
fp->curr_clust = clust;
|
| simon |
0:560a6744936c
|
1187
|
fp->fptr += csize;
|
| simon |
0:560a6744936c
|
1188
|
ofs -= csize;
|
| simon |
0:560a6744936c
|
1189
|
}
|
| simon |
0:560a6744936c
|
1190
|
fp->fptr += ofs;
|
| simon |
0:560a6744936c
|
1191
|
fp->csect = (BYTE)(ofs / SS(fp->fs)); /* Sector offset in the cluster */
|
| simon |
0:560a6744936c
|
1192
|
if (ofs & (SS(fp->fs) - 1)) {
|
| simon |
0:560a6744936c
|
1193
|
nsect = clust2sect(fp->fs, clust) + fp->csect; /* Current sector */
|
| simon |
0:560a6744936c
|
1194
|
fp->csect++;
|
| simon |
0:560a6744936c
|
1195
|
}
|
| simon |
0:560a6744936c
|
1196
|
}
|
| simon |
0:560a6744936c
|
1197
|
}
|
| simon |
0:560a6744936c
|
1198
|
if (nsect && nsect != fp->curr_sect) {
|
| simon |
0:560a6744936c
|
1199
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1200
|
if (fp->flag & FA__DIRTY) { /* Write-back dirty buffer if needed */
|
| simon |
0:560a6744936c
|
1201
|
if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1202
|
goto fk_error;
|
| simon |
0:560a6744936c
|
1203
|
fp->flag &= (BYTE)~FA__DIRTY;
|
| simon |
0:560a6744936c
|
1204
|
}
|
| simon |
0:560a6744936c
|
1205
|
#endif
|
| simon |
0:560a6744936c
|
1206
|
if (disk_read(fp->fs->drive, fp->buffer, nsect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1207
|
goto fk_error;
|
| simon |
0:560a6744936c
|
1208
|
fp->curr_sect = nsect;
|
| simon |
0:560a6744936c
|
1209
|
}
|
| simon |
0:560a6744936c
|
1210
|
|
| simon |
0:560a6744936c
|
1211
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1212
|
if (fp->fptr > fp->fsize) { /* Set changed flag if the file was extended */
|
| simon |
0:560a6744936c
|
1213
|
fp->fsize = fp->fptr;
|
| simon |
0:560a6744936c
|
1214
|
fp->flag |= FA__WRITTEN;
|
| simon |
0:560a6744936c
|
1215
|
}
|
| simon |
0:560a6744936c
|
1216
|
#endif
|
| simon |
0:560a6744936c
|
1217
|
|
| simon |
0:560a6744936c
|
1218
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1219
|
|
| simon |
0:560a6744936c
|
1220
|
fk_error: /* Abort this file due to an unrecoverable error */
|
| simon |
0:560a6744936c
|
1221
|
fp->flag |= FA__ERROR;
|
| simon |
0:560a6744936c
|
1222
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1223
|
}
|
| simon |
0:560a6744936c
|
1224
|
|
| simon |
0:560a6744936c
|
1225
|
|
| simon |
0:560a6744936c
|
1226
|
|
| simon |
0:560a6744936c
|
1227
|
|
| simon |
0:560a6744936c
|
1228
|
#if _FS_MINIMIZE <= 1
|
| simon |
0:560a6744936c
|
1229
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1230
|
/* Create a directroy object */
|
| simon |
0:560a6744936c
|
1231
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1232
|
|
| simon |
0:560a6744936c
|
1233
|
FRESULT f_opendir (
|
| simon |
0:560a6744936c
|
1234
|
FATFS_DIR *dj, /* Pointer to directory object to create */
|
| simon |
0:560a6744936c
|
1235
|
const char *path /* Pointer to the directory path */
|
| simon |
0:560a6744936c
|
1236
|
)
|
| simon |
0:560a6744936c
|
1237
|
{
|
| simon |
0:560a6744936c
|
1238
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1239
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
1240
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1241
|
|
| simon |
0:560a6744936c
|
1242
|
|
| simon |
0:560a6744936c
|
1243
|
res = auto_mount(&path, &dj->fs, 0);
|
| simon |
0:560a6744936c
|
1244
|
if (res == FR_OK) {
|
| simon |
0:560a6744936c
|
1245
|
res = trace_path(dj, fn, path, &dir); /* Trace the directory path */
|
| simon |
0:560a6744936c
|
1246
|
if (res == FR_OK) { /* Trace completed */
|
| simon |
0:560a6744936c
|
1247
|
if (dir) { /* It is not the root dir */
|
| simon |
0:560a6744936c
|
1248
|
if (dir[DIR_Attr] & AM_DIR) { /* The entry is a directory */
|
| simon |
0:560a6744936c
|
1249
|
dj->clust = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]);
|
| simon |
0:560a6744936c
|
1250
|
dj->sect = clust2sect(dj->fs, dj->clust);
|
| simon |
0:560a6744936c
|
1251
|
dj->index = 2;
|
| simon |
0:560a6744936c
|
1252
|
} else { /* The entry is not a directory */
|
| simon |
0:560a6744936c
|
1253
|
res = FR_NO_FILE;
|
| simon |
0:560a6744936c
|
1254
|
}
|
| simon |
0:560a6744936c
|
1255
|
}
|
| simon |
0:560a6744936c
|
1256
|
dj->id = dj->fs->id;
|
| simon |
0:560a6744936c
|
1257
|
}
|
| simon |
0:560a6744936c
|
1258
|
}
|
| simon |
0:560a6744936c
|
1259
|
|
| simon |
0:560a6744936c
|
1260
|
return res;
|
| simon |
0:560a6744936c
|
1261
|
}
|
| simon |
0:560a6744936c
|
1262
|
|
| simon |
0:560a6744936c
|
1263
|
|
| simon |
0:560a6744936c
|
1264
|
|
| simon |
0:560a6744936c
|
1265
|
|
| simon |
0:560a6744936c
|
1266
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1267
|
/* Read Directory Entry in Sequense */
|
| simon |
0:560a6744936c
|
1268
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1269
|
|
| simon |
0:560a6744936c
|
1270
|
FRESULT f_readdir (
|
| simon |
0:560a6744936c
|
1271
|
FATFS_DIR *dj, /* Pointer to the directory object */
|
| simon |
0:560a6744936c
|
1272
|
FILINFO *finfo /* Pointer to file information to return */
|
| simon |
0:560a6744936c
|
1273
|
)
|
| simon |
0:560a6744936c
|
1274
|
{
|
| simon |
0:560a6744936c
|
1275
|
BYTE *dir, c;
|
| simon |
0:560a6744936c
|
1276
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1277
|
|
| simon |
0:560a6744936c
|
1278
|
res = validate(dj->fs, dj->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
1279
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1280
|
|
| simon |
0:560a6744936c
|
1281
|
finfo->fname[0] = 0;
|
| simon |
0:560a6744936c
|
1282
|
while (dj->sect) {
|
| simon |
0:560a6744936c
|
1283
|
if (!move_window(dj->fs, dj->sect))
|
| simon |
0:560a6744936c
|
1284
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1285
|
dir = &dj->fs->win[(dj->index & ((SS(dj->fs) - 1) >> 5)) * 32]; /* pointer to the directory entry */
|
| simon |
0:560a6744936c
|
1286
|
c = dir[DIR_Name];
|
| simon |
0:560a6744936c
|
1287
|
if (c == 0) break; /* Has it reached to end of dir? */
|
| simon |
0:560a6744936c
|
1288
|
if (c != 0xE5 && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */
|
| simon |
0:560a6744936c
|
1289
|
get_fileinfo(finfo, dir);
|
| simon |
0:560a6744936c
|
1290
|
if (!next_dir_entry(dj)) dj->sect = 0; /* Next entry */
|
| simon |
0:560a6744936c
|
1291
|
if (finfo->fname[0]) break; /* Found valid entry */
|
| simon |
0:560a6744936c
|
1292
|
}
|
| simon |
0:560a6744936c
|
1293
|
|
| simon |
0:560a6744936c
|
1294
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1295
|
}
|
| simon |
0:560a6744936c
|
1296
|
|
| simon |
0:560a6744936c
|
1297
|
|
| simon |
0:560a6744936c
|
1298
|
|
| simon |
0:560a6744936c
|
1299
|
|
| simon |
0:560a6744936c
|
1300
|
#if _FS_MINIMIZE == 0
|
| simon |
0:560a6744936c
|
1301
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1302
|
/* Get File Status */
|
| simon |
0:560a6744936c
|
1303
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1304
|
|
| simon |
0:560a6744936c
|
1305
|
FRESULT f_stat (
|
| simon |
0:560a6744936c
|
1306
|
const char *path, /* Pointer to the file path */
|
| simon |
0:560a6744936c
|
1307
|
FILINFO *finfo /* Pointer to file information to return */
|
| simon |
0:560a6744936c
|
1308
|
)
|
| simon |
0:560a6744936c
|
1309
|
{
|
| simon |
0:560a6744936c
|
1310
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1311
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1312
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
1313
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1314
|
|
| simon |
0:560a6744936c
|
1315
|
|
| simon |
0:560a6744936c
|
1316
|
res = auto_mount(&path, &dj.fs, 0);
|
| simon |
0:560a6744936c
|
1317
|
if (res == FR_OK) {
|
| simon |
0:560a6744936c
|
1318
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
1319
|
if (res == FR_OK) { /* Trace completed */
|
| simon |
0:560a6744936c
|
1320
|
if (dir) /* Found an object */
|
| simon |
0:560a6744936c
|
1321
|
get_fileinfo(finfo, dir);
|
| simon |
0:560a6744936c
|
1322
|
else /* It is root dir */
|
| simon |
0:560a6744936c
|
1323
|
res = FR_INVALID_NAME;
|
| simon |
0:560a6744936c
|
1324
|
}
|
| simon |
0:560a6744936c
|
1325
|
}
|
| simon |
0:560a6744936c
|
1326
|
|
| simon |
0:560a6744936c
|
1327
|
return res;
|
| simon |
0:560a6744936c
|
1328
|
}
|
| simon |
0:560a6744936c
|
1329
|
|
| simon |
0:560a6744936c
|
1330
|
|
| simon |
0:560a6744936c
|
1331
|
|
| simon |
0:560a6744936c
|
1332
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1333
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1334
|
/* Truncate File */
|
| simon |
0:560a6744936c
|
1335
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1336
|
|
| simon |
0:560a6744936c
|
1337
|
FRESULT f_truncate (
|
| simon |
0:560a6744936c
|
1338
|
FIL *fp /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1339
|
)
|
| simon |
0:560a6744936c
|
1340
|
{
|
| simon |
0:560a6744936c
|
1341
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1342
|
DWORD ncl;
|
| simon |
0:560a6744936c
|
1343
|
|
| simon |
0:560a6744936c
|
1344
|
|
| simon |
0:560a6744936c
|
1345
|
res = validate(fp->fs, fp->id); /* Check validity of the object */
|
| simon |
0:560a6744936c
|
1346
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1347
|
if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */
|
| simon |
0:560a6744936c
|
1348
|
if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */
|
| simon |
0:560a6744936c
|
1349
|
|
| simon |
0:560a6744936c
|
1350
|
if (fp->fsize > fp->fptr) {
|
| simon |
0:560a6744936c
|
1351
|
fp->fsize = fp->fptr; /* Set file size to current R/W point */
|
| simon |
0:560a6744936c
|
1352
|
fp->flag |= FA__WRITTEN;
|
| simon |
0:560a6744936c
|
1353
|
if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
|
| simon |
0:560a6744936c
|
1354
|
if (!remove_chain(fp->fs, fp->org_clust)) goto ft_error;
|
| simon |
0:560a6744936c
|
1355
|
fp->org_clust = 0;
|
| simon |
0:560a6744936c
|
1356
|
} else { /* When truncate a part of the file, remove remaining clusters */
|
| simon |
0:560a6744936c
|
1357
|
ncl = get_cluster(fp->fs, fp->curr_clust);
|
| simon |
0:560a6744936c
|
1358
|
if (ncl < 2) goto ft_error;
|
| simon |
0:560a6744936c
|
1359
|
if (ncl < fp->fs->max_clust) {
|
| simon |
0:560a6744936c
|
1360
|
if (!put_cluster(fp->fs, fp->curr_clust, 0x0FFFFFFF)) goto ft_error;
|
| simon |
0:560a6744936c
|
1361
|
if (!remove_chain(fp->fs, ncl)) goto ft_error;
|
| simon |
0:560a6744936c
|
1362
|
}
|
| simon |
0:560a6744936c
|
1363
|
}
|
| simon |
0:560a6744936c
|
1364
|
}
|
| simon |
0:560a6744936c
|
1365
|
|
| simon |
0:560a6744936c
|
1366
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1367
|
|
| simon |
0:560a6744936c
|
1368
|
ft_error: /* Abort this file due to an unrecoverable error */
|
| simon |
0:560a6744936c
|
1369
|
fp->flag |= FA__ERROR;
|
| simon |
0:560a6744936c
|
1370
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1371
|
}
|
| simon |
0:560a6744936c
|
1372
|
|
| simon |
0:560a6744936c
|
1373
|
|
| simon |
0:560a6744936c
|
1374
|
|
| simon |
0:560a6744936c
|
1375
|
|
| simon |
0:560a6744936c
|
1376
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1377
|
/* Get Number of Free Clusters */
|
| simon |
0:560a6744936c
|
1378
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1379
|
|
| simon |
0:560a6744936c
|
1380
|
FRESULT f_getfree (
|
| simon |
0:560a6744936c
|
1381
|
const char *drv, /* Pointer to the logical drive number (root dir) */
|
| simon |
0:560a6744936c
|
1382
|
DWORD *nclust, /* Pointer to the variable to return number of free clusters */
|
| simon |
0:560a6744936c
|
1383
|
FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */
|
| simon |
0:560a6744936c
|
1384
|
)
|
| simon |
0:560a6744936c
|
1385
|
{
|
| simon |
0:560a6744936c
|
1386
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1387
|
DWORD n, clust, sect;
|
| simon |
0:560a6744936c
|
1388
|
BYTE fat, f, *p;
|
| simon |
0:560a6744936c
|
1389
|
|
| simon |
0:560a6744936c
|
1390
|
|
| simon |
0:560a6744936c
|
1391
|
/* Get drive number */
|
| simon |
0:560a6744936c
|
1392
|
res = auto_mount(&drv, fatfs, 0);
|
| simon |
0:560a6744936c
|
1393
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1394
|
|
| simon |
0:560a6744936c
|
1395
|
/* If number of free cluster is valid, return it without cluster scan. */
|
| simon |
0:560a6744936c
|
1396
|
if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) {
|
| simon |
0:560a6744936c
|
1397
|
*nclust = (*fatfs)->free_clust;
|
| simon |
0:560a6744936c
|
1398
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1399
|
}
|
| simon |
0:560a6744936c
|
1400
|
|
| simon |
0:560a6744936c
|
1401
|
/* Get number of free clusters */
|
| simon |
0:560a6744936c
|
1402
|
fat = (*fatfs)->fs_type;
|
| simon |
0:560a6744936c
|
1403
|
n = 0;
|
| simon |
0:560a6744936c
|
1404
|
if (fat == FS_FAT12) {
|
| simon |
0:560a6744936c
|
1405
|
clust = 2;
|
| simon |
0:560a6744936c
|
1406
|
do {
|
| simon |
0:560a6744936c
|
1407
|
if ((WORD)get_cluster(*fatfs, clust) == 0) n++;
|
| simon |
0:560a6744936c
|
1408
|
} while (++clust < (*fatfs)->max_clust);
|
| simon |
0:560a6744936c
|
1409
|
} else {
|
| simon |
0:560a6744936c
|
1410
|
clust = (*fatfs)->max_clust;
|
| simon |
0:560a6744936c
|
1411
|
sect = (*fatfs)->fatbase;
|
| simon |
0:560a6744936c
|
1412
|
f = 0; p = 0;
|
| simon |
0:560a6744936c
|
1413
|
do {
|
| simon |
0:560a6744936c
|
1414
|
if (!f) {
|
| simon |
0:560a6744936c
|
1415
|
if (!move_window(*fatfs, sect++)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1416
|
p = (*fatfs)->win;
|
| simon |
0:560a6744936c
|
1417
|
}
|
| simon |
0:560a6744936c
|
1418
|
if (fat == FS_FAT16) {
|
| simon |
0:560a6744936c
|
1419
|
if (LD_WORD(p) == 0) n++;
|
| simon |
0:560a6744936c
|
1420
|
p += 2; f += 1;
|
| simon |
0:560a6744936c
|
1421
|
} else {
|
| simon |
0:560a6744936c
|
1422
|
if (LD_DWORD(p) == 0) n++;
|
| simon |
0:560a6744936c
|
1423
|
p += 4; f += 2;
|
| simon |
0:560a6744936c
|
1424
|
}
|
| simon |
0:560a6744936c
|
1425
|
} while (--clust);
|
| simon |
0:560a6744936c
|
1426
|
}
|
| simon |
0:560a6744936c
|
1427
|
(*fatfs)->free_clust = n;
|
| simon |
0:560a6744936c
|
1428
|
#if _USE_FSINFO
|
| simon |
0:560a6744936c
|
1429
|
if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1;
|
| simon |
0:560a6744936c
|
1430
|
#endif
|
| simon |
0:560a6744936c
|
1431
|
|
| simon |
0:560a6744936c
|
1432
|
*nclust = n;
|
| simon |
0:560a6744936c
|
1433
|
return FR_OK;
|
| simon |
0:560a6744936c
|
1434
|
}
|
| simon |
0:560a6744936c
|
1435
|
|
| simon |
0:560a6744936c
|
1436
|
|
| simon |
0:560a6744936c
|
1437
|
|
| simon |
0:560a6744936c
|
1438
|
|
| simon |
0:560a6744936c
|
1439
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1440
|
/* Delete a File or Directory */
|
| simon |
0:560a6744936c
|
1441
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1442
|
|
| simon |
0:560a6744936c
|
1443
|
FRESULT f_unlink (
|
| simon |
0:560a6744936c
|
1444
|
const char *path /* Pointer to the file or directory path */
|
| simon |
0:560a6744936c
|
1445
|
)
|
| simon |
0:560a6744936c
|
1446
|
{
|
| simon |
0:560a6744936c
|
1447
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1448
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1449
|
BYTE *dir, *sdir;
|
| simon |
0:560a6744936c
|
1450
|
DWORD dclust, dsect;
|
| simon |
0:560a6744936c
|
1451
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1452
|
|
| simon |
0:560a6744936c
|
1453
|
|
| simon |
0:560a6744936c
|
1454
|
res = auto_mount(&path, &dj.fs, 1);
|
| simon |
0:560a6744936c
|
1455
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1456
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
1457
|
if (res != FR_OK) return res; /* Trace failed */
|
| simon |
0:560a6744936c
|
1458
|
if (!dir) return FR_INVALID_NAME; /* It is the root directory */
|
| simon |
0:560a6744936c
|
1459
|
if (dir[DIR_Attr] & AM_RDO) return FR_DENIED; /* It is a R/O object */
|
| simon |
0:560a6744936c
|
1460
|
dsect = dj.fs->winsect;
|
| simon |
0:560a6744936c
|
1461
|
dclust = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]);
|
| simon |
0:560a6744936c
|
1462
|
|
| simon |
0:560a6744936c
|
1463
|
if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */
|
| simon |
0:560a6744936c
|
1464
|
dj.clust = dclust; /* Check if the sub-dir is empty or not */
|
| simon |
0:560a6744936c
|
1465
|
dj.sect = clust2sect(dj.fs, dclust);
|
| simon |
0:560a6744936c
|
1466
|
dj.index = 2;
|
| simon |
0:560a6744936c
|
1467
|
do {
|
| simon |
0:560a6744936c
|
1468
|
if (!move_window(dj.fs, dj.sect)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1469
|
sdir = &dj.fs->win[(dj.index & ((SS(dj.fs) - 1) >> 5)) * 32];
|
| simon |
0:560a6744936c
|
1470
|
if (sdir[DIR_Name] == 0) break;
|
| simon |
0:560a6744936c
|
1471
|
if (sdir[DIR_Name] != 0xE5 && !(sdir[DIR_Attr] & AM_VOL))
|
| simon |
0:560a6744936c
|
1472
|
return FR_DENIED; /* The directory is not empty */
|
| simon |
0:560a6744936c
|
1473
|
} while (next_dir_entry(&dj));
|
| simon |
0:560a6744936c
|
1474
|
}
|
| simon |
0:560a6744936c
|
1475
|
|
| simon |
0:560a6744936c
|
1476
|
if (!move_window(dj.fs, dsect)) return FR_RW_ERROR; /* Mark the directory entry 'deleted' */
|
| simon |
0:560a6744936c
|
1477
|
dir[DIR_Name] = 0xE5;
|
| simon |
0:560a6744936c
|
1478
|
dj.fs->winflag = 1;
|
| simon |
0:560a6744936c
|
1479
|
if (!remove_chain(dj.fs, dclust)) return FR_RW_ERROR; /* Remove the cluster chain */
|
| simon |
0:560a6744936c
|
1480
|
|
| simon |
0:560a6744936c
|
1481
|
return sync(dj.fs);
|
| simon |
0:560a6744936c
|
1482
|
}
|
| simon |
0:560a6744936c
|
1483
|
|
| simon |
0:560a6744936c
|
1484
|
|
| simon |
0:560a6744936c
|
1485
|
|
| simon |
0:560a6744936c
|
1486
|
|
| simon |
0:560a6744936c
|
1487
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1488
|
/* Create a Directory */
|
| simon |
0:560a6744936c
|
1489
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1490
|
|
| simon |
0:560a6744936c
|
1491
|
FRESULT f_mkdir (
|
| simon |
0:560a6744936c
|
1492
|
const char *path /* Pointer to the directory path */
|
| simon |
0:560a6744936c
|
1493
|
)
|
| simon |
0:560a6744936c
|
1494
|
{
|
| simon |
0:560a6744936c
|
1495
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1496
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1497
|
BYTE *dir, *fw, n;
|
| simon |
0:560a6744936c
|
1498
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1499
|
DWORD sect, dsect, dclust, pclust, tim;
|
| simon |
0:560a6744936c
|
1500
|
|
| simon |
0:560a6744936c
|
1501
|
|
| simon |
0:560a6744936c
|
1502
|
res = auto_mount(&path, &dj.fs, 1);
|
| simon |
0:560a6744936c
|
1503
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1504
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
1505
|
if (res == FR_OK) return FR_EXIST; /* Any file or directory is already existing */
|
| simon |
0:560a6744936c
|
1506
|
if (res != FR_NO_FILE) return res;
|
| simon |
0:560a6744936c
|
1507
|
|
| simon |
0:560a6744936c
|
1508
|
res = reserve_direntry(&dj, &dir); /* Reserve a directory entry */
|
| simon |
0:560a6744936c
|
1509
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1510
|
sect = dj.fs->winsect;
|
| simon |
0:560a6744936c
|
1511
|
dclust = create_chain(dj.fs, 0); /* Allocate a cluster for new directory table */
|
| simon |
0:560a6744936c
|
1512
|
if (dclust == 1) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1513
|
dsect = clust2sect(dj.fs, dclust);
|
| simon |
0:560a6744936c
|
1514
|
if (!dsect) return FR_DENIED;
|
| simon |
0:560a6744936c
|
1515
|
if (!move_window(dj.fs, dsect)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1516
|
|
| simon |
0:560a6744936c
|
1517
|
fw = dj.fs->win;
|
| simon |
0:560a6744936c
|
1518
|
memset(fw, 0, SS(dj.fs)); /* Clear the new directory table */
|
| simon |
0:560a6744936c
|
1519
|
for (n = 1; n < dj.fs->csize; n++) {
|
| simon |
0:560a6744936c
|
1520
|
if (disk_write(dj.fs->drive, fw, ++dsect, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1521
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1522
|
}
|
| simon |
0:560a6744936c
|
1523
|
memset(&fw[DIR_Name], ' ', 8+3); /* Create "." entry */
|
| simon |
0:560a6744936c
|
1524
|
fw[DIR_Name] = '.';
|
| simon |
0:560a6744936c
|
1525
|
fw[DIR_Attr] = AM_DIR;
|
| simon |
0:560a6744936c
|
1526
|
tim = get_fattime();
|
| simon |
0:560a6744936c
|
1527
|
ST_DWORD(&fw[DIR_WrtTime], tim);
|
| simon |
0:560a6744936c
|
1528
|
memcpy(&fw[32], &fw[0], 32); fw[33] = '.'; /* Create ".." entry */
|
| simon |
0:560a6744936c
|
1529
|
ST_WORD(&fw[ DIR_FstClusLO], dclust);
|
| simon |
0:560a6744936c
|
1530
|
ST_WORD(&fw[ DIR_FstClusHI], dclust >> 16);
|
| simon |
0:560a6744936c
|
1531
|
pclust = dj.sclust;
|
| simon |
0:560a6744936c
|
1532
|
if (dj.fs->fs_type == FS_FAT32 && pclust == dj.fs->dirbase) pclust = 0;
|
| simon |
0:560a6744936c
|
1533
|
ST_WORD(&fw[32+DIR_FstClusLO], pclust);
|
| simon |
0:560a6744936c
|
1534
|
ST_WORD(&fw[32+DIR_FstClusHI], pclust >> 16);
|
| simon |
0:560a6744936c
|
1535
|
dj.fs->winflag = 1;
|
| simon |
0:560a6744936c
|
1536
|
|
| simon |
0:560a6744936c
|
1537
|
if (!move_window(dj.fs, sect)) return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1538
|
memset(&dir[0], 0, 32); /* Initialize the new entry */
|
| simon |
0:560a6744936c
|
1539
|
memcpy(&dir[DIR_Name], fn, 8+3); /* Name */
|
| simon |
0:560a6744936c
|
1540
|
dir[DIR_NTres] = fn[11];
|
| simon |
0:560a6744936c
|
1541
|
dir[DIR_Attr] = AM_DIR; /* Attribute */
|
| simon |
0:560a6744936c
|
1542
|
ST_DWORD(&dir[DIR_WrtTime], tim); /* Crated time */
|
| simon |
0:560a6744936c
|
1543
|
ST_WORD(&dir[DIR_FstClusLO], dclust); /* Table start cluster */
|
| simon |
0:560a6744936c
|
1544
|
ST_WORD(&dir[DIR_FstClusHI], dclust >> 16);
|
| simon |
0:560a6744936c
|
1545
|
|
| simon |
0:560a6744936c
|
1546
|
return sync(dj.fs);
|
| simon |
0:560a6744936c
|
1547
|
}
|
| simon |
0:560a6744936c
|
1548
|
|
| simon |
0:560a6744936c
|
1549
|
|
| simon |
0:560a6744936c
|
1550
|
|
| simon |
0:560a6744936c
|
1551
|
|
| simon |
0:560a6744936c
|
1552
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1553
|
/* Change File Attribute */
|
| simon |
0:560a6744936c
|
1554
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1555
|
|
| simon |
0:560a6744936c
|
1556
|
FRESULT f_chmod (
|
| simon |
0:560a6744936c
|
1557
|
const char *path, /* Pointer to the file path */
|
| simon |
0:560a6744936c
|
1558
|
BYTE value, /* Attribute bits */
|
| simon |
0:560a6744936c
|
1559
|
BYTE mask /* Attribute mask to change */
|
| simon |
0:560a6744936c
|
1560
|
)
|
| simon |
0:560a6744936c
|
1561
|
{
|
| simon |
0:560a6744936c
|
1562
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1563
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1564
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
1565
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1566
|
|
| simon |
0:560a6744936c
|
1567
|
|
| simon |
0:560a6744936c
|
1568
|
res = auto_mount(&path, &dj.fs, 1);
|
| simon |
0:560a6744936c
|
1569
|
if (res == FR_OK) {
|
| simon |
0:560a6744936c
|
1570
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
1571
|
if (res == FR_OK) { /* Trace completed */
|
| simon |
0:560a6744936c
|
1572
|
if (!dir) {
|
| simon |
0:560a6744936c
|
1573
|
res = FR_INVALID_NAME; /* Root directory */
|
| simon |
0:560a6744936c
|
1574
|
} else {
|
| simon |
0:560a6744936c
|
1575
|
mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
|
| simon |
0:560a6744936c
|
1576
|
dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */
|
| simon |
0:560a6744936c
|
1577
|
res = sync(dj.fs);
|
| simon |
0:560a6744936c
|
1578
|
}
|
| simon |
0:560a6744936c
|
1579
|
}
|
| simon |
0:560a6744936c
|
1580
|
}
|
| simon |
0:560a6744936c
|
1581
|
return res;
|
| simon |
0:560a6744936c
|
1582
|
}
|
| simon |
0:560a6744936c
|
1583
|
|
| simon |
0:560a6744936c
|
1584
|
|
| simon |
0:560a6744936c
|
1585
|
|
| simon |
0:560a6744936c
|
1586
|
|
| simon |
0:560a6744936c
|
1587
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1588
|
/* Change Timestamp */
|
| simon |
0:560a6744936c
|
1589
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1590
|
|
| simon |
0:560a6744936c
|
1591
|
FRESULT f_utime (
|
| simon |
0:560a6744936c
|
1592
|
const char *path, /* Pointer to the file/directory name */
|
| simon |
0:560a6744936c
|
1593
|
const FILINFO *finfo /* Pointer to the timestamp to be set */
|
| simon |
0:560a6744936c
|
1594
|
)
|
| simon |
0:560a6744936c
|
1595
|
{
|
| simon |
0:560a6744936c
|
1596
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1597
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1598
|
BYTE *dir;
|
| simon |
0:560a6744936c
|
1599
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1600
|
|
| simon |
0:560a6744936c
|
1601
|
|
| simon |
0:560a6744936c
|
1602
|
res = auto_mount(&path, &dj.fs, 1);
|
| simon |
0:560a6744936c
|
1603
|
if (res == FR_OK) {
|
| simon |
0:560a6744936c
|
1604
|
res = trace_path(&dj, fn, path, &dir); /* Trace the file path */
|
| simon |
0:560a6744936c
|
1605
|
if (res == FR_OK) { /* Trace completed */
|
| simon |
0:560a6744936c
|
1606
|
if (!dir) {
|
| simon |
0:560a6744936c
|
1607
|
res = FR_INVALID_NAME; /* Root directory */
|
| simon |
0:560a6744936c
|
1608
|
} else {
|
| simon |
0:560a6744936c
|
1609
|
ST_WORD(&dir[DIR_WrtTime], finfo->ftime);
|
| simon |
0:560a6744936c
|
1610
|
ST_WORD(&dir[DIR_WrtDate], finfo->fdate);
|
| simon |
0:560a6744936c
|
1611
|
res = sync(dj.fs);
|
| simon |
0:560a6744936c
|
1612
|
}
|
| simon |
0:560a6744936c
|
1613
|
}
|
| simon |
0:560a6744936c
|
1614
|
}
|
| simon |
0:560a6744936c
|
1615
|
return res;
|
| simon |
0:560a6744936c
|
1616
|
}
|
| simon |
0:560a6744936c
|
1617
|
|
| simon |
0:560a6744936c
|
1618
|
|
| simon |
0:560a6744936c
|
1619
|
|
| simon |
0:560a6744936c
|
1620
|
|
| simon |
0:560a6744936c
|
1621
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1622
|
/* Rename File/Directory */
|
| simon |
0:560a6744936c
|
1623
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1624
|
|
| simon |
0:560a6744936c
|
1625
|
FRESULT f_rename (
|
| simon |
0:560a6744936c
|
1626
|
const char *path_old, /* Pointer to the old name */
|
| simon |
0:560a6744936c
|
1627
|
const char *path_new /* Pointer to the new name */
|
| simon |
0:560a6744936c
|
1628
|
)
|
| simon |
0:560a6744936c
|
1629
|
{
|
| simon |
0:560a6744936c
|
1630
|
FRESULT res;
|
| simon |
0:560a6744936c
|
1631
|
FATFS_DIR dj;
|
| simon |
0:560a6744936c
|
1632
|
DWORD sect_old;
|
| simon |
0:560a6744936c
|
1633
|
BYTE *dir_old, *dir_new, direntry[32-11];
|
| simon |
0:560a6744936c
|
1634
|
char fn[8+3+1];
|
| simon |
0:560a6744936c
|
1635
|
|
| simon |
0:560a6744936c
|
1636
|
|
| simon |
0:560a6744936c
|
1637
|
res = auto_mount(&path_old, &dj.fs, 1);
|
| simon |
0:560a6744936c
|
1638
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1639
|
|
| simon |
0:560a6744936c
|
1640
|
res = trace_path(&dj, fn, path_old, &dir_old); /* Check old object */
|
| simon |
0:560a6744936c
|
1641
|
if (res != FR_OK) return res; /* The old object is not found */
|
| simon |
0:560a6744936c
|
1642
|
if (!dir_old) return FR_NO_FILE;
|
| simon |
0:560a6744936c
|
1643
|
sect_old = dj.fs->winsect; /* Save the object information */
|
| simon |
0:560a6744936c
|
1644
|
memcpy(direntry, &dir_old[DIR_Attr], 32-11);
|
| simon |
0:560a6744936c
|
1645
|
|
| simon |
0:560a6744936c
|
1646
|
res = trace_path(&dj, fn, path_new, &dir_new); /* Check new object */
|
| simon |
0:560a6744936c
|
1647
|
if (res == FR_OK) return FR_EXIST; /* The new object name is already existing */
|
| simon |
0:560a6744936c
|
1648
|
if (res != FR_NO_FILE) return res; /* Is there no old name? */
|
| simon |
0:560a6744936c
|
1649
|
res = reserve_direntry(&dj, &dir_new); /* Reserve a directory entry */
|
| simon |
0:560a6744936c
|
1650
|
if (res != FR_OK) return res;
|
| simon |
0:560a6744936c
|
1651
|
|
| simon |
0:560a6744936c
|
1652
|
memcpy(&dir_new[DIR_Attr], direntry, 32-11); /* Create new entry */
|
| simon |
0:560a6744936c
|
1653
|
memcpy(&dir_new[DIR_Name], fn, 8+3);
|
| simon |
0:560a6744936c
|
1654
|
dir_new[DIR_NTres] = fn[11];
|
| simon |
0:560a6744936c
|
1655
|
dj.fs->winflag = 1;
|
| simon |
0:560a6744936c
|
1656
|
|
| simon |
0:560a6744936c
|
1657
|
if (!move_window(dj.fs, sect_old)) return FR_RW_ERROR; /* Delete old entry */
|
| simon |
0:560a6744936c
|
1658
|
dir_old[DIR_Name] = 0xE5;
|
| simon |
0:560a6744936c
|
1659
|
|
| simon |
0:560a6744936c
|
1660
|
return sync(dj.fs);
|
| simon |
0:560a6744936c
|
1661
|
}
|
| simon |
0:560a6744936c
|
1662
|
|
| simon |
0:560a6744936c
|
1663
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
1664
|
#endif /* _FS_MINIMIZE == 0 */
|
| simon |
0:560a6744936c
|
1665
|
#endif /* _FS_MINIMIZE <= 1 */
|
| simon |
0:560a6744936c
|
1666
|
#endif /* _FS_MINIMIZE <= 2 */
|
| simon |
0:560a6744936c
|
1667
|
|
| simon |
0:560a6744936c
|
1668
|
|
| simon |
0:560a6744936c
|
1669
|
|
| simon |
0:560a6744936c
|
1670
|
#if _USE_MKFS && !_FS_READONLY
|
| simon |
0:560a6744936c
|
1671
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1672
|
/* Create File System on the Drive */
|
| simon |
0:560a6744936c
|
1673
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1674
|
#define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */
|
| simon |
0:560a6744936c
|
1675
|
#define N_FATS 1 /* 1 or 2 */
|
| simon |
0:560a6744936c
|
1676
|
#define MAX_SECTOR 64000000UL /* Maximum partition size */
|
| simon |
0:560a6744936c
|
1677
|
#define MIN_SECTOR 2000UL /* Minimum partition size */
|
| simon |
0:560a6744936c
|
1678
|
|
| simon |
0:560a6744936c
|
1679
|
|
| simon |
0:560a6744936c
|
1680
|
|
| simon |
0:560a6744936c
|
1681
|
FRESULT f_mkfs (
|
| simon |
0:560a6744936c
|
1682
|
BYTE drv, /* Logical drive number */
|
| simon |
0:560a6744936c
|
1683
|
BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */
|
| simon |
0:560a6744936c
|
1684
|
WORD allocsize /* Allocation unit size [bytes] */
|
| simon |
0:560a6744936c
|
1685
|
)
|
| simon |
0:560a6744936c
|
1686
|
{
|
| simon |
0:560a6744936c
|
1687
|
BYTE fmt, m, *tbl;
|
| simon |
0:560a6744936c
|
1688
|
DWORD b_part, b_fat, b_dir, b_data; /* Area offset (LBA) */
|
| simon |
0:560a6744936c
|
1689
|
DWORD n_part, n_rsv, n_fat, n_dir; /* Area size */
|
| simon |
0:560a6744936c
|
1690
|
DWORD n_clust, n;
|
| simon |
0:560a6744936c
|
1691
|
FATFS *fs;
|
| simon |
0:560a6744936c
|
1692
|
DSTATUS stat;
|
| simon |
0:560a6744936c
|
1693
|
|
| simon |
0:560a6744936c
|
1694
|
|
| simon |
0:560a6744936c
|
1695
|
/* Check validity of the parameters */
|
| simon |
0:560a6744936c
|
1696
|
if (drv >= _DRIVES) return FR_INVALID_DRIVE;
|
| simon |
0:560a6744936c
|
1697
|
if (partition >= 2) return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1698
|
for (n = 512; n <= 32768U && n != allocsize; n <<= 1);
|
| simon |
0:560a6744936c
|
1699
|
if (n != allocsize) return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1700
|
|
| simon |
0:560a6744936c
|
1701
|
/* Check mounted drive and clear work area */
|
| simon |
0:560a6744936c
|
1702
|
fs = FatFs[drv];
|
| simon |
0:560a6744936c
|
1703
|
if (!fs) return FR_NOT_ENABLED;
|
| simon |
0:560a6744936c
|
1704
|
fs->fs_type = 0;
|
| simon |
0:560a6744936c
|
1705
|
drv = LD2PD(drv);
|
| simon |
0:560a6744936c
|
1706
|
|
| simon |
0:560a6744936c
|
1707
|
/* Get disk statics */
|
| simon |
0:560a6744936c
|
1708
|
stat = disk_initialize(drv);
|
| simon |
0:560a6744936c
|
1709
|
if (stat & STA_NOINIT) return FR_NOT_READY;
|
| simon |
0:560a6744936c
|
1710
|
if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
|
| simon |
0:560a6744936c
|
1711
|
if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR)
|
| simon |
0:560a6744936c
|
1712
|
return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1713
|
if (n_part > MAX_SECTOR) n_part = MAX_SECTOR;
|
| simon |
0:560a6744936c
|
1714
|
b_part = (!partition) ? 63 : 0; /* Boot sector */
|
| simon |
0:560a6744936c
|
1715
|
n_part -= b_part;
|
| simon |
0:560a6744936c
|
1716
|
#if S_MAX_SIZ > 512 /* Check disk sector size */
|
| simon |
0:560a6744936c
|
1717
|
if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
|
| simon |
0:560a6744936c
|
1718
|
|| SS(fs) > S_MAX_SIZ
|
| simon |
0:560a6744936c
|
1719
|
|| SS(fs) > allocsize)
|
| simon |
0:560a6744936c
|
1720
|
return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1721
|
#endif
|
| simon |
0:560a6744936c
|
1722
|
allocsize /= SS(fs); /* Number of sectors per cluster */
|
| simon |
0:560a6744936c
|
1723
|
|
| simon |
0:560a6744936c
|
1724
|
/* Pre-compute number of clusters and FAT type */
|
| simon |
0:560a6744936c
|
1725
|
n_clust = n_part / allocsize;
|
| simon |
0:560a6744936c
|
1726
|
fmt = FS_FAT12;
|
| simon |
0:560a6744936c
|
1727
|
if (n_clust >= 0xFF5) fmt = FS_FAT16;
|
| simon |
0:560a6744936c
|
1728
|
if (n_clust >= 0xFFF5) fmt = FS_FAT32;
|
| simon |
0:560a6744936c
|
1729
|
|
| simon |
0:560a6744936c
|
1730
|
/* Determine offset and size of FAT structure */
|
| simon |
0:560a6744936c
|
1731
|
switch (fmt) {
|
| simon |
0:560a6744936c
|
1732
|
case FS_FAT12:
|
| simon |
0:560a6744936c
|
1733
|
n_fat = ((n_clust * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs);
|
| simon |
0:560a6744936c
|
1734
|
n_rsv = 1 + partition;
|
| simon |
0:560a6744936c
|
1735
|
n_dir = N_ROOTDIR * 32 / SS(fs);
|
| simon |
0:560a6744936c
|
1736
|
break;
|
| simon |
0:560a6744936c
|
1737
|
case FS_FAT16:
|
| simon |
0:560a6744936c
|
1738
|
n_fat = ((n_clust * 2) + 4 + SS(fs) - 1) / SS(fs);
|
| simon |
0:560a6744936c
|
1739
|
n_rsv = 1 + partition;
|
| simon |
0:560a6744936c
|
1740
|
n_dir = N_ROOTDIR * 32 / SS(fs);
|
| simon |
0:560a6744936c
|
1741
|
break;
|
| simon |
0:560a6744936c
|
1742
|
default:
|
| simon |
0:560a6744936c
|
1743
|
n_fat = ((n_clust * 4) + 8 + SS(fs) - 1) / SS(fs);
|
| simon |
0:560a6744936c
|
1744
|
n_rsv = 33 - partition;
|
| simon |
0:560a6744936c
|
1745
|
n_dir = 0;
|
| simon |
0:560a6744936c
|
1746
|
}
|
| simon |
0:560a6744936c
|
1747
|
b_fat = b_part + n_rsv; /* FATs start sector */
|
| simon |
0:560a6744936c
|
1748
|
b_dir = b_fat + n_fat * N_FATS; /* Directory start sector */
|
| simon |
0:560a6744936c
|
1749
|
b_data = b_dir + n_dir; /* Data start sector */
|
| simon |
0:560a6744936c
|
1750
|
|
| simon |
0:560a6744936c
|
1751
|
/* Align data start sector to erase block boundary (for flash memory media) */
|
| simon |
0:560a6744936c
|
1752
|
if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1753
|
n = (b_data + n - 1) & ~(n - 1);
|
| simon |
0:560a6744936c
|
1754
|
n_fat += (n - b_data) / N_FATS;
|
| simon |
0:560a6744936c
|
1755
|
/* b_dir and b_data are no longer used below */
|
| simon |
0:560a6744936c
|
1756
|
|
| simon |
0:560a6744936c
|
1757
|
/* Determine number of cluster and final check of validity of the FAT type */
|
| simon |
0:560a6744936c
|
1758
|
n_clust = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize;
|
| simon |
0:560a6744936c
|
1759
|
if ( (fmt == FS_FAT16 && n_clust < 0xFF5)
|
| simon |
0:560a6744936c
|
1760
|
|| (fmt == FS_FAT32 && n_clust < 0xFFF5))
|
| simon |
0:560a6744936c
|
1761
|
return FR_MKFS_ABORTED;
|
| simon |
0:560a6744936c
|
1762
|
|
| simon |
0:560a6744936c
|
1763
|
/* Create partition table if needed */
|
| simon |
0:560a6744936c
|
1764
|
if (!partition) {
|
| simon |
0:560a6744936c
|
1765
|
DWORD n_disk = b_part + n_part;
|
| simon |
0:560a6744936c
|
1766
|
|
| simon |
0:560a6744936c
|
1767
|
tbl = &fs->win[MBR_Table];
|
| simon |
0:560a6744936c
|
1768
|
ST_DWORD(&tbl[0], 0x00010180); /* Partition start in CHS */
|
| simon |
0:560a6744936c
|
1769
|
if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */
|
| simon |
0:560a6744936c
|
1770
|
n_disk = n_disk / 63 / 255;
|
| simon |
0:560a6744936c
|
1771
|
tbl[7] = (BYTE)n_disk;
|
| simon |
0:560a6744936c
|
1772
|
tbl[6] = (BYTE)((n_disk >> 2) | 63);
|
| simon |
0:560a6744936c
|
1773
|
} else {
|
| simon |
0:560a6744936c
|
1774
|
ST_WORD(&tbl[6], 0xFFFF);
|
| simon |
0:560a6744936c
|
1775
|
}
|
| simon |
0:560a6744936c
|
1776
|
tbl[5] = 254;
|
| simon |
0:560a6744936c
|
1777
|
if (fmt != FS_FAT32) /* System ID */
|
| simon |
0:560a6744936c
|
1778
|
tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06;
|
| simon |
0:560a6744936c
|
1779
|
else
|
| simon |
0:560a6744936c
|
1780
|
tbl[4] = 0x0c;
|
| simon |
0:560a6744936c
|
1781
|
ST_DWORD(&tbl[8], 63); /* Partition start in LBA */
|
| simon |
0:560a6744936c
|
1782
|
ST_DWORD(&tbl[12], n_part); /* Partition size in LBA */
|
| simon |
0:560a6744936c
|
1783
|
ST_WORD(&tbl[64], 0xAA55); /* Signature */
|
| simon |
0:560a6744936c
|
1784
|
if (disk_write(drv, fs->win, 0, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1785
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1786
|
}
|
| simon |
0:560a6744936c
|
1787
|
|
| simon |
0:560a6744936c
|
1788
|
/* Create boot record */
|
| simon |
0:560a6744936c
|
1789
|
tbl = fs->win; /* Clear buffer */
|
| simon |
0:560a6744936c
|
1790
|
memset(tbl, 0, SS(fs));
|
| simon |
0:560a6744936c
|
1791
|
ST_DWORD(&tbl[BS_jmpBoot], 0x90FEEB); /* Boot code (jmp $, nop) */
|
| simon |
0:560a6744936c
|
1792
|
ST_WORD(&tbl[BPB_BytsPerSec], SS(fs)); /* Sector size */
|
| simon |
0:560a6744936c
|
1793
|
tbl[BPB_SecPerClus] = (BYTE)allocsize; /* Sectors per cluster */
|
| simon |
0:560a6744936c
|
1794
|
ST_WORD(&tbl[BPB_RsvdSecCnt], n_rsv); /* Reserved sectors */
|
| simon |
0:560a6744936c
|
1795
|
tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
|
| simon |
0:560a6744936c
|
1796
|
ST_WORD(&tbl[BPB_RootEntCnt], SS(fs) / 32 * n_dir); /* Number of rootdir entries */
|
| simon |
0:560a6744936c
|
1797
|
if (n_part < 0x10000) { /* Number of total sectors */
|
| simon |
0:560a6744936c
|
1798
|
ST_WORD(&tbl[BPB_TotSec16], n_part);
|
| simon |
0:560a6744936c
|
1799
|
} else {
|
| simon |
0:560a6744936c
|
1800
|
ST_DWORD(&tbl[BPB_TotSec32], n_part);
|
| simon |
0:560a6744936c
|
1801
|
}
|
| simon |
0:560a6744936c
|
1802
|
tbl[BPB_Media] = 0xF8; /* Media descripter */
|
| simon |
0:560a6744936c
|
1803
|
ST_WORD(&tbl[BPB_SecPerTrk], 63); /* Number of sectors per track */
|
| simon |
0:560a6744936c
|
1804
|
ST_WORD(&tbl[BPB_NumHeads], 255); /* Number of heads */
|
| simon |
0:560a6744936c
|
1805
|
ST_DWORD(&tbl[BPB_HiddSec], b_part); /* Hidden sectors */
|
| simon |
0:560a6744936c
|
1806
|
n = get_fattime(); /* Use current time as a VSN */
|
| simon |
0:560a6744936c
|
1807
|
if (fmt != FS_FAT32) {
|
| simon |
0:560a6744936c
|
1808
|
ST_DWORD(&tbl[BS_VolID], n); /* Volume serial number */
|
| simon |
0:560a6744936c
|
1809
|
ST_WORD(&tbl[BPB_FATSz16], n_fat); /* Number of secters per FAT */
|
| simon |
0:560a6744936c
|
1810
|
tbl[BS_DrvNum] = 0x80; /* Drive number */
|
| simon |
0:560a6744936c
|
1811
|
tbl[BS_BootSig] = 0x29; /* Extended boot signature */
|
| simon |
0:560a6744936c
|
1812
|
memcpy(&tbl[BS_VolLab], "NO NAME FAT ", 19); /* Volume lavel, FAT signature */
|
| simon |
0:560a6744936c
|
1813
|
} else {
|
| simon |
0:560a6744936c
|
1814
|
ST_DWORD(&tbl[BS_VolID32], n); /* Volume serial number */
|
| simon |
0:560a6744936c
|
1815
|
ST_DWORD(&tbl[BPB_FATSz32], n_fat); /* Number of secters per FAT */
|
| simon |
0:560a6744936c
|
1816
|
ST_DWORD(&tbl[BPB_RootClus], 2); /* Root directory cluster (2) */
|
| simon |
0:560a6744936c
|
1817
|
ST_WORD(&tbl[BPB_FSInfo], 1); /* FSInfo record (bs+1) */
|
| simon |
0:560a6744936c
|
1818
|
ST_WORD(&tbl[BPB_BkBootSec], 6); /* Backup boot record (bs+6) */
|
| simon |
0:560a6744936c
|
1819
|
tbl[BS_DrvNum32] = 0x80; /* Drive number */
|
| simon |
0:560a6744936c
|
1820
|
tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
|
| simon |
0:560a6744936c
|
1821
|
memcpy(&tbl[BS_VolLab32], "NO NAME FAT32 ", 19); /* Volume lavel, FAT signature */
|
| simon |
0:560a6744936c
|
1822
|
}
|
| simon |
0:560a6744936c
|
1823
|
ST_WORD(&tbl[BS_55AA], 0xAA55); /* Signature */
|
| simon |
0:560a6744936c
|
1824
|
if (disk_write(drv, tbl, b_part+0, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1825
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1826
|
if (fmt == FS_FAT32)
|
| simon |
0:560a6744936c
|
1827
|
disk_write(drv, tbl, b_part+6, 1);
|
| simon |
0:560a6744936c
|
1828
|
|
| simon |
0:560a6744936c
|
1829
|
/* Initialize FAT area */
|
| simon |
0:560a6744936c
|
1830
|
for (m = 0; m < N_FATS; m++) {
|
| simon |
0:560a6744936c
|
1831
|
memset(tbl, 0, SS(fs)); /* 1st sector of the FAT */
|
| simon |
0:560a6744936c
|
1832
|
if (fmt != FS_FAT32) {
|
| simon |
0:560a6744936c
|
1833
|
n = (fmt == FS_FAT12) ? 0x00FFFFF8 : 0xFFFFFFF8;
|
| simon |
0:560a6744936c
|
1834
|
ST_DWORD(&tbl[0], n); /* Reserve cluster #0-1 (FAT12/16) */
|
| simon |
0:560a6744936c
|
1835
|
} else {
|
| simon |
0:560a6744936c
|
1836
|
ST_DWORD(&tbl[0], 0xFFFFFFF8); /* Reserve cluster #0-1 (FAT32) */
|
| simon |
0:560a6744936c
|
1837
|
ST_DWORD(&tbl[4], 0xFFFFFFFF);
|
| simon |
0:560a6744936c
|
1838
|
ST_DWORD(&tbl[8], 0x0FFFFFFF); /* Reserve cluster #2 for root dir */
|
| simon |
0:560a6744936c
|
1839
|
}
|
| simon |
0:560a6744936c
|
1840
|
if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1841
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1842
|
memset(tbl, 0, SS(fs)); /* Following FAT entries are filled by zero */
|
| simon |
0:560a6744936c
|
1843
|
for (n = 1; n < n_fat; n++) {
|
| simon |
0:560a6744936c
|
1844
|
if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1845
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1846
|
}
|
| simon |
0:560a6744936c
|
1847
|
}
|
| simon |
0:560a6744936c
|
1848
|
|
| simon |
0:560a6744936c
|
1849
|
/* Initialize Root directory */
|
| simon |
0:560a6744936c
|
1850
|
m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir);
|
| simon |
0:560a6744936c
|
1851
|
do {
|
| simon |
0:560a6744936c
|
1852
|
if (disk_write(drv, tbl, b_fat++, 1) != RES_OK)
|
| simon |
0:560a6744936c
|
1853
|
return FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1854
|
} while (--m);
|
| simon |
0:560a6744936c
|
1855
|
|
| simon |
0:560a6744936c
|
1856
|
/* Create FSInfo record if needed */
|
| simon |
0:560a6744936c
|
1857
|
if (fmt == FS_FAT32) {
|
| simon |
0:560a6744936c
|
1858
|
ST_WORD(&tbl[BS_55AA], 0xAA55);
|
| simon |
0:560a6744936c
|
1859
|
ST_DWORD(&tbl[FSI_LeadSig], 0x41615252);
|
| simon |
0:560a6744936c
|
1860
|
ST_DWORD(&tbl[FSI_StrucSig], 0x61417272);
|
| simon |
0:560a6744936c
|
1861
|
ST_DWORD(&tbl[FSI_Free_Count], n_clust - 1);
|
| simon |
0:560a6744936c
|
1862
|
ST_DWORD(&tbl[FSI_Nxt_Free], 0xFFFFFFFF);
|
| simon |
0:560a6744936c
|
1863
|
disk_write(drv, tbl, b_part+1, 1);
|
| simon |
0:560a6744936c
|
1864
|
disk_write(drv, tbl, b_part+7, 1);
|
| simon |
0:560a6744936c
|
1865
|
}
|
| simon |
0:560a6744936c
|
1866
|
|
| simon |
0:560a6744936c
|
1867
|
return (disk_ioctl(drv, CTRL_SYNC, NULL) == RES_OK) ? FR_OK : FR_RW_ERROR;
|
| simon |
0:560a6744936c
|
1868
|
}
|
| simon |
0:560a6744936c
|
1869
|
|
| simon |
0:560a6744936c
|
1870
|
#endif /* _USE_MKFS && !_FS_READONLY */
|
| simon |
0:560a6744936c
|
1871
|
|
| simon |
0:560a6744936c
|
1872
|
|
| simon |
0:560a6744936c
|
1873
|
|
| simon |
0:560a6744936c
|
1874
|
|
| simon |
0:560a6744936c
|
1875
|
#if _USE_STRFUNC >= 1
|
| simon |
0:560a6744936c
|
1876
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1877
|
/* Get a string from the file */
|
| simon |
0:560a6744936c
|
1878
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1879
|
char* fgets (
|
| simon |
0:560a6744936c
|
1880
|
char* buff, /* Pointer to the string buffer to read */
|
| simon |
0:560a6744936c
|
1881
|
int len, /* Size of string buffer */
|
| simon |
0:560a6744936c
|
1882
|
FIL* fil /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1883
|
)
|
| simon |
0:560a6744936c
|
1884
|
{
|
| simon |
0:560a6744936c
|
1885
|
int i = 0;
|
| simon |
0:560a6744936c
|
1886
|
char *p = buff;
|
| simon |
0:560a6744936c
|
1887
|
UINT rc;
|
| simon |
0:560a6744936c
|
1888
|
|
| simon |
0:560a6744936c
|
1889
|
|
| simon |
0:560a6744936c
|
1890
|
while (i < len - 1) { /* Read bytes until buffer gets filled */
|
| simon |
0:560a6744936c
|
1891
|
f_read(fil, p, 1, &rc);
|
| simon |
0:560a6744936c
|
1892
|
if (rc != 1) break; /* Break when no data to read */
|
| simon |
0:560a6744936c
|
1893
|
#if _USE_STRFUNC >= 2
|
| simon |
0:560a6744936c
|
1894
|
if (*p == '\r') continue; /* Strip '\r' */
|
| simon |
0:560a6744936c
|
1895
|
#endif
|
| simon |
0:560a6744936c
|
1896
|
i++;
|
| simon |
0:560a6744936c
|
1897
|
if (*p++ == '\n') break; /* Break when reached end of line */
|
| simon |
0:560a6744936c
|
1898
|
}
|
| simon |
0:560a6744936c
|
1899
|
*p = 0;
|
| simon |
0:560a6744936c
|
1900
|
return i ? buff : 0; /* When no data read (eof or error), return with error. */
|
| simon |
0:560a6744936c
|
1901
|
}
|
| simon |
0:560a6744936c
|
1902
|
|
| simon |
0:560a6744936c
|
1903
|
|
| simon |
0:560a6744936c
|
1904
|
|
| simon |
0:560a6744936c
|
1905
|
#if !_FS_READONLY
|
| simon |
0:560a6744936c
|
1906
|
#include <stdarg.h>
|
| simon |
0:560a6744936c
|
1907
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1908
|
/* Put a character to the file */
|
| simon |
0:560a6744936c
|
1909
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1910
|
int fputc (
|
| simon |
0:560a6744936c
|
1911
|
int chr, /* A character to be output */
|
| simon |
0:560a6744936c
|
1912
|
FIL* fil /* Ponter to the file object */
|
| simon |
0:560a6744936c
|
1913
|
)
|
| simon |
0:560a6744936c
|
1914
|
{
|
| simon |
0:560a6744936c
|
1915
|
UINT bw;
|
| simon |
0:560a6744936c
|
1916
|
char c;
|
| simon |
0:560a6744936c
|
1917
|
|
| simon |
0:560a6744936c
|
1918
|
|
| simon |
0:560a6744936c
|
1919
|
#if _USE_STRFUNC >= 2
|
| simon |
0:560a6744936c
|
1920
|
if (chr == '\n') fputc ('\r', fil); /* LF -> CRLF conversion */
|
| simon |
0:560a6744936c
|
1921
|
#endif
|
| simon |
0:560a6744936c
|
1922
|
if (!fil) { /* Special value may be used to switch the destination to any other device */
|
| simon |
0:560a6744936c
|
1923
|
/* put_console(chr); */
|
| simon |
0:560a6744936c
|
1924
|
return chr;
|
| simon |
0:560a6744936c
|
1925
|
}
|
| simon |
0:560a6744936c
|
1926
|
c = (char)chr;
|
| simon |
0:560a6744936c
|
1927
|
f_write(fil, &c, 1, &bw); /* Write a byte to the file */
|
| simon |
0:560a6744936c
|
1928
|
return bw ? chr : EOF; /* Return the resulut */
|
| simon |
0:560a6744936c
|
1929
|
}
|
| simon |
0:560a6744936c
|
1930
|
|
| simon |
0:560a6744936c
|
1931
|
|
| simon |
0:560a6744936c
|
1932
|
|
| simon |
0:560a6744936c
|
1933
|
|
| simon |
0:560a6744936c
|
1934
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1935
|
/* Put a string to the file */
|
| simon |
0:560a6744936c
|
1936
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1937
|
int fputs (
|
| simon |
0:560a6744936c
|
1938
|
const char* str, /* Pointer to the string to be output */
|
| simon |
0:560a6744936c
|
1939
|
FIL* fil /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1940
|
)
|
| simon |
0:560a6744936c
|
1941
|
{
|
| simon |
0:560a6744936c
|
1942
|
int n;
|
| simon |
0:560a6744936c
|
1943
|
|
| simon |
0:560a6744936c
|
1944
|
|
| simon |
0:560a6744936c
|
1945
|
for (n = 0; *str; str++, n++) {
|
| simon |
0:560a6744936c
|
1946
|
if (fputc(*str, fil) == EOF) return EOF;
|
| simon |
0:560a6744936c
|
1947
|
}
|
| simon |
0:560a6744936c
|
1948
|
return n;
|
| simon |
0:560a6744936c
|
1949
|
}
|
| simon |
0:560a6744936c
|
1950
|
|
| simon |
0:560a6744936c
|
1951
|
|
| simon |
0:560a6744936c
|
1952
|
|
| simon |
0:560a6744936c
|
1953
|
|
| simon |
0:560a6744936c
|
1954
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1955
|
/* Put a formatted string to the file */
|
| simon |
0:560a6744936c
|
1956
|
/*-----------------------------------------------------------------------*/
|
| simon |
0:560a6744936c
|
1957
|
int fprintf (
|
| simon |
0:560a6744936c
|
1958
|
FIL* fil, /* Pointer to the file object */
|
| simon |
0:560a6744936c
|
1959
|
const char* str, /* Pointer to the format string */
|
| simon |
0:560a6744936c
|
1960
|
... /* Optional arguments... */
|
| simon |
0:560a6744936c
|
1961
|
)
|
| simon |
0:560a6744936c
|
1962
|
{
|
| simon |
0:560a6744936c
|
1963
|
va_list arp;
|
| simon |
0:560a6744936c
|
1964
|
UCHAR c, f, r;
|
| simon |
0:560a6744936c
|
1965
|
ULONG val;
|
| simon |
0:560a6744936c
|
1966
|
char s[16];
|
| simon |
0:560a6744936c
|
1967
|
int i, w, res, cc;
|
| simon |
0:560a6744936c
|
1968
|
|
| simon |
0:560a6744936c
|
1969
|
|
| simon |
0:560a6744936c
|
1970
|
va_start(arp, str);
|
| simon |
0:560a6744936c
|
1971
|
|
| simon |
0:560a6744936c
|
1972
|
for (cc = res = 0; cc != EOF; res += cc) {
|
| simon |
0:560a6744936c
|
1973
|
c = *str++;
|
| simon |
0:560a6744936c
|
1974
|
if (c == 0) break; /* End of string */
|
| simon |
0:560a6744936c
|
1975
|
if (c != '%') { /* Non escape cahracter */
|
| simon |
0:560a6744936c
|
1976
|
cc = fputc(c, fil);
|
| simon |
0:560a6744936c
|
1977
|
if (cc != EOF) cc = 1;
|
| simon |
0:560a6744936c
|
1978
|
continue;
|
| simon |
0:560a6744936c
|
1979
|
}
|
| simon |
0:560a6744936c
|
1980
|
w = f = 0;
|
| simon |
0:560a6744936c
|
1981
|
c = *str++;
|
| simon |
0:560a6744936c
|
1982
|
if (c == '0') { /* Flag: '0' padding */
|
| simon |
0:560a6744936c
|
1983
|
f = 1; c = *str++;
|
| simon |
0:560a6744936c
|
1984
|
}
|
| simon |
0:560a6744936c
|
1985
|
while (c >= '0' && c <= '9') { /* Precision */
|
| simon |
0:560a6744936c
|
1986
|
w = w * 10 + (c - '0');
|
| simon |
0:560a6744936c
|
1987
|
c = *str++;
|
| simon |
0:560a6744936c
|
1988
|
}
|
| simon |
0:560a6744936c
|
1989
|
if (c == 'l') { /* Prefix: Size is long int */
|
| simon |
0:560a6744936c
|
1990
|
f |= 2; c = *str++;
|
| simon |
0:560a6744936c
|
1991
|
}
|
| simon |
0:560a6744936c
|
1992
|
if (c == 's') { /* Type is string */
|
| simon |
0:560a6744936c
|
1993
|
cc = fputs(va_arg(arp, char*), fil);
|
| simon |
0:560a6744936c
|
1994
|
continue;
|
| simon |
0:560a6744936c
|
1995
|
}
|
| simon |
0:560a6744936c
|
1996
|
if (c == 'c') { /* Type is character */
|
| simon |
0:560a6744936c
|
1997
|
cc = fputc(va_arg(arp, char), fil);
|
| simon |
0:560a6744936c
|
1998
|
if (cc != EOF) cc = 1;
|
| simon |
0:560a6744936c
|
1999
|
continue;
|
| simon |
0:560a6744936c
|
2000
|
}
|
| simon |
0:560a6744936c
|
2001
|
r = 0;
|
| simon |
0:560a6744936c
|
2002
|
if (c == 'd') r = 10; /* Type is signed decimal */
|
| simon |
0:560a6744936c
|
2003
|
if (c == 'u') r = 10; /* Type is unsigned decimal */
|
| simon |
0:560a6744936c
|
2004
|
if (c == 'X') r = 16; /* Type is unsigned hexdecimal */
|
| simon |
0:560a6744936c
|
2005
|
if (r == 0) break; /* Unknown type */
|
| simon |
0:560a6744936c
|
2006
|
if (f & 2) { /* Get the value */
|
| simon |
0:560a6744936c
|
2007
|
val = (ULONG)va_arg(arp, long);
|
| simon |
0:560a6744936c
|
2008
|
} else {
|
| simon |
0:560a6744936c
|
2009
|
val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int);
|
| simon |
0:560a6744936c
|
2010
|
}
|
| simon |
0:560a6744936c
|
2011
|
/* Put numeral string */
|
| simon |
0:560a6744936c
|
2012
|
if (c == 'd') {
|
| simon |
0:560a6744936c
|
2013
|
if (val >= 0x80000000) {
|
| simon |
0:560a6744936c
|
2014
|
val = 0 - val;
|
| simon |
0:560a6744936c
|
2015
|
f |= 4;
|
| simon |
0:560a6744936c
|
2016
|
}
|
| simon |
0:560a6744936c
|
2017
|
}
|
| simon |
0:560a6744936c
|
2018
|
i = sizeof(s) - 1; s[i] = 0;
|
| simon |
0:560a6744936c
|
2019
|
do {
|
| simon |
0:560a6744936c
|
2020
|
c = (UCHAR)(val % r + '0');
|
| simon |
0:560a6744936c
|
2021
|
if (c > '9') c += 7;
|
| simon |
0:560a6744936c
|
2022
|
s[--i] = c;
|
| simon |
0:560a6744936c
|
2023
|
val /= r;
|
| simon |
0:560a6744936c
|
2024
|
} while (i && val);
|
| simon |
0:560a6744936c
|
2025
|
if (i && (f & 4)) s[--i] = '-';
|
| simon |
0:560a6744936c
|
2026
|
w = sizeof(s) - 1 - w;
|
| simon |
0:560a6744936c
|
2027
|
while (i && i > w) s[--i] = (f & 1) ? '0' : ' ';
|
| simon |
0:560a6744936c
|
2028
|
cc = fputs(&s[i], fil);
|
| simon |
0:560a6744936c
|
2029
|
}
|
| simon |
0:560a6744936c
|
2030
|
|
| simon |
0:560a6744936c
|
2031
|
va_end(arp);
|
| simon |
0:560a6744936c
|
2032
|
return (cc == EOF) ? cc : res;
|
| simon |
0:560a6744936c
|
2033
|
}
|
| simon |
0:560a6744936c
|
2034
|
|
| simon |
0:560a6744936c
|
2035
|
#endif /* !_FS_READONLY */
|
| simon |
0:560a6744936c
|
2036
|
#endif /* _USE_STRFUNC >= 1*/
|
Simon Ford