this library has few changes from the original library, for effects of this work.
FATFileSystem/ChaN/ffconf.h
- Committer:
- FannyCalle
- Date:
- 2018-05-21
- Revision:
- 0:8214896432e0
File content as of revision 0:8214896432e0:
/*---------------------------------------------------------------------------/ / FatFs - FAT file system module configuration file R0.11a (C)ChaN, 2015 /---------------------------------------------------------------------------*/ #define _FFCONF 64180 /* Revision ID */ #define FFS_DBG 0 /*---------------------------------------------------------------------------/ / Function Configurations /---------------------------------------------------------------------------*/ #define _FS_READONLY 0 /* This option switches read-only configuration. (0:Read/Write or 1:Read-only) / Read-only configuration removes writing API functions, f_write(), f_sync(), / f_unlink(), f_mkdir(), f_chmod(), f_rename(), f_truncate(), f_getfree() / and optional writing functions as well. */ #define _FS_MINIMIZE 0 /* This option defines minimization level to remove some basic API functions. / / 0: All basic functions are enabled. / 1: f_stat(), f_getfree(), f_unlink(), f_mkdir(), f_chmod(), f_utime(), / f_truncate() and f_rename() function are removed. / 2: f_opendir(), f_readdir() and f_closedir() are removed in addition to 1. / 3: f_lseek() function is removed in addition to 2. */ #define _USE_STRFUNC 0 /* This option switches string functions, f_gets(), f_putc(), f_puts() and / f_printf(). / / 0: Disable string functions. / 1: Enable without LF-CRLF conversion. / 2: Enable with LF-CRLF conversion. */ #define _USE_FIND 0 /* This option switches filtered directory read feature and related functions, / f_findfirst() and f_findnext(). (0:Disable or 1:Enable) */ #define _USE_MKFS 1 /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */ #define _USE_FASTSEEK 0 /* This option switches fast seek feature. (0:Disable or 1:Enable) */ #define _USE_LABEL 0 /* This option switches volume label functions, f_getlabel() and f_setlabel(). / (0:Disable or 1:Enable) */ #define _USE_FORWARD 0 /* This option switches f_forward() function. (0:Disable or 1:Enable) / To enable it, also _FS_TINY need to be set to 1. */ /*---------------------------------------------------------------------------/ / Locale and Namespace Configurations /---------------------------------------------------------------------------*/ #define _CODE_PAGE 850 /* This option specifies the OEM code page to be used on the target system. / Incorrect setting of the code page can cause a file open failure. / / 1 - ASCII (No extended character. Non-LFN cfg. only) / 437 - U.S. / 720 - Arabic / 737 - Greek / 771 - KBL / 775 - Baltic / 850 - Latin 1 / 852 - Latin 2 / 855 - Cyrillic / 857 - Turkish / 860 - Portuguese / 861 - Icelandic / 862 - Hebrew / 863 - Canadian French / 864 - Arabic / 865 - Nordic / 866 - Russian / 869 - Greek 2 / 932 - Japanese (DBCS) / 936 - Simplified Chinese (DBCS) / 949 - Korean (DBCS) / 950 - Traditional Chinese (DBCS) */ #define _USE_LFN 1 #define _MAX_LFN 255 /* The _USE_LFN option switches the LFN feature. / / 0: Disable LFN feature. _MAX_LFN has no effect. / 1: Enable LFN with static working buffer on the BSS. Always NOT thread-safe. / 2: Enable LFN with dynamic working buffer on the STACK. / 3: Enable LFN with dynamic working buffer on the HEAP. / / When enable the LFN feature, Unicode handling functions (option/unicode.c) must / be added to the project. The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. / When use stack for the working buffer, take care on stack overflow. When use heap / memory for the working buffer, memory management functions, ff_memalloc() and / ff_memfree(), must be added to the project. */ #define _LFN_UNICODE 0 /* This option switches character encoding on the API. (0:ANSI/OEM or 1:Unicode) / To use Unicode string for the path name, enable LFN feature and set _LFN_UNICODE / to 1. This option also affects behavior of string I/O functions. */ #define _STRF_ENCODE 3 /* When _LFN_UNICODE is 1, this option selects the character encoding on the file to / be read/written via string I/O functions, f_gets(), f_putc(), f_puts and f_printf(). / / 0: ANSI/OEM / 1: UTF-16LE / 2: UTF-16BE / 3: UTF-8 / / When _LFN_UNICODE is 0, this option has no effect. */ #define _FS_RPATH 0 /* This option configures relative path feature. / / 0: Disable relative path feature and remove related functions. / 1: Enable relative path feature. f_chdir() and f_chdrive() are available. / 2: f_getcwd() function is available in addition to 1. / / Note that directory items read via f_readdir() are affected by this option. */ /*---------------------------------------------------------------------------/ / Drive/Volume Configurations /---------------------------------------------------------------------------*/ #define _VOLUMES 1 /* Number of volumes (logical drives) to be used. */ #define _STR_VOLUME_ID 0 #define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3" /* _STR_VOLUME_ID option switches string volume ID feature. / When _STR_VOLUME_ID is set to 1, also pre-defined strings can be used as drive / number in the path name. _VOLUME_STRS defines the drive ID strings for each / logical drives. Number of items must be equal to _VOLUMES. Valid characters for / the drive ID strings are: A-Z and 0-9. */ #define _MULTI_PARTITION 0 /* This option switches multi-partition feature. By default (0), each logical drive / number is bound to the same physical drive number and only an FAT volume found on / the physical drive will be mounted. When multi-partition feature is enabled (1), / each logical drive number is bound to arbitrary physical drive and partition / listed in the VolToPart[]. Also f_fdisk() funciton will be available. */ #define _MIN_SS 512 #define _MAX_SS 512 /* These options configure the range of sector size to be supported. (512, 1024, / 2048 or 4096) Always set both 512 for most systems, all type of memory cards and / harddisk. But a larger value may be required for on-board flash memory and some / type of optical media. When _MAX_SS is larger than _MIN_SS, FatFs is configured / to variable sector size and GET_SECTOR_SIZE command must be implemented to the / disk_ioctl() function. */ #define _USE_TRIM 0 /* This option switches ATA-TRIM feature. (0:Disable or 1:Enable) / To enable Trim feature, also CTRL_TRIM command should be implemented to the / disk_ioctl() function. */ #define _FS_NOFSINFO 0 /* If you need to know correct free space on the FAT32 volume, set bit 0 of this / option, and f_getfree() function at first time after volume mount will force / a full FAT scan. Bit 1 controls the use of last allocated cluster number. / / bit0=0: Use free cluster count in the FSINFO if available. / bit0=1: Do not trust free cluster count in the FSINFO. / bit1=0: Use last allocated cluster number in the FSINFO if available. / bit1=1: Do not trust last allocated cluster number in the FSINFO. */ /*---------------------------------------------------------------------------/ / System Configurations /---------------------------------------------------------------------------*/ #define _FS_TINY 0 /* This option switches tiny buffer configuration. (0:Normal or 1:Tiny) / At the tiny configuration, size of the file object (FIL) is reduced _MAX_SS / bytes. Instead of private sector buffer eliminated from the file object, / common sector buffer in the file system object (FATFS) is used for the file / data transfer. */ #define _FS_NORTC 0 #define _NORTC_MON 1 #define _NORTC_MDAY 1 #define _NORTC_YEAR 2015 /* The _FS_NORTC option switches timestamp feature. If the system does not have / an RTC function or valid timestamp is not needed, set _FS_NORTC to 1 to disable / the timestamp feature. All objects modified by FatFs will have a fixed timestamp / defined by _NORTC_MON, _NORTC_MDAY and _NORTC_YEAR. / When timestamp feature is enabled (_FS_NORTC == 0), get_fattime() function need / to be added to the project to read current time form RTC. _NORTC_MON, / _NORTC_MDAY and _NORTC_YEAR have no effect. / These options have no effect at read-only configuration (_FS_READONLY == 1). */ #define _FS_LOCK 0 /* The _FS_LOCK option switches file lock feature to control duplicated file open / and illegal operation to open objects. This option must be 0 when _FS_READONLY / is 1. / / 0: Disable file lock feature. To avoid volume corruption, application program / should avoid illegal open, remove and rename to the open objects. / >0: Enable file lock feature. The value defines how many files/sub-directories / can be opened simultaneously under file lock control. Note that the file / lock feature is independent of re-entrancy. */ #define _FS_REENTRANT 0 #define _FS_TIMEOUT 1000 #define _SYNC_t HANDLE /* The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs / module itself. Note that regardless of this option, file access to different / volume is always re-entrant and volume control functions, f_mount(), f_mkfs() / and f_fdisk() function, are always not re-entrant. Only file/directory access / to the same volume is under control of this feature. / / 0: Disable re-entrancy. _FS_TIMEOUT and _SYNC_t have no effect. / 1: Enable re-entrancy. Also user provided synchronization handlers, / ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj() / function, must be added to the project. Samples are available in / option/syscall.c. / / The _FS_TIMEOUT defines timeout period in unit of time tick. / The _SYNC_t defines O/S dependent sync object type. e.g. HANDLE, ID, OS_EVENT*, / SemaphoreHandle_t and etc.. A header file for O/S definitions needs to be / included somewhere in the scope of ff.c. */ #define _WORD_ACCESS 0 /* The _WORD_ACCESS option is an only platform dependent option. It defines / which access method is used to the word data on the FAT volume. / / 0: Byte-by-byte access. Always compatible with all platforms. / 1: Word access. Do not choose this unless under both the following conditions. / / * Address misaligned memory access is always allowed to ALL instructions. / * Byte order on the memory is little-endian. / / If it is the case, _WORD_ACCESS can also be set to 1 to reduce code size. / Following table shows allowable settings of some type of processors. / / ARM7TDMI 0 *2 ColdFire 0 *1 V850E 0 *2 / Cortex-M3 0 *3 Z80 0/1 V850ES 0/1 / Cortex-M0 0 *2 x86 0/1 TLCS-870 0/1 / AVR 0/1 RX600(LE) 0/1 TLCS-900 0/1 / AVR32 0 *1 RL78 0 *2 R32C 0 *2 / PIC18 0/1 SH-2 0 *1 M16C 0/1 / PIC24 0 *2 H8S 0 *1 MSP430 0 *2 / PIC32 0 *1 H8/300H 0 *1 8051 0/1 / / *1:Big-endian. / *2:Unaligned memory access is not supported. / *3:Some compilers generate LDM/STM for mem_cpy function. */ #define FLUSH_ON_NEW_CLUSTER 0 /* Sync the file on every new cluster */ #define FLUSH_ON_NEW_SECTOR 1 /* Sync the file on every new sector */ /* Only one of these two defines needs to be set to 1. If both are set to 0 the file is only sync when closed. Clusters are group of sectors (eg: 8 sectors). Flushing on new cluster means it would be less often than flushing on new sector. Sectors are generally 512 Bytes long. */