This code is based on: http://elm-chan.org/fsw/ff/00index_e.html FatFs Generic FAT File System Module This patch offers a read/write implementation for barebox. The code does not exaclty match barebox coding style, but works nicely and should be ready to give it a try. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
146 lines
5.6 KiB
C
146 lines
5.6 KiB
C
/*---------------------------------------------------------------------------/
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/ FatFs - FAT file system module configuration file R0.08b (C)ChaN, 2011
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/----------------------------------------------------------------------------/
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/
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/ CAUTION! Do not forget to make clean the project after any changes to
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/ the configuration options.
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/
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/----------------------------------------------------------------------------*/
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#ifndef _FFCONF
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#define _FFCONF 8237 /* Revision ID */
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/*---------------------------------------------------------------------------/
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/ Function and Buffer Configurations
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/----------------------------------------------------------------------------*/
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#define _FS_TINY 0 /* 0:Normal or 1:Tiny */
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/* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system
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/ object instead of the sector buffer in the individual file object for file
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/ data transfer. This reduces memory consumption 512 bytes each file object. */
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#define _USE_STRFUNC 0 /* 0:Disable or 1/2:Enable */
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/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
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#define _USE_MKFS 0 /* 0:Disable or 1:Enable */
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/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
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#define _USE_FORWARD 0 /* 0:Disable or 1:Enable */
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/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
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#define _USE_FASTSEEK 0 /* 0:Disable or 1:Enable */
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/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
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/*---------------------------------------------------------------------------/
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/ Locale and Namespace Configurations
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/----------------------------------------------------------------------------*/
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#define _CODE_PAGE 932
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/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
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/ Incorrect setting of the code page can cause a file open failure.
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/
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/ 932 - Japanese Shift-JIS (DBCS, OEM, Windows)
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/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows)
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/ 949 - Korean (DBCS, OEM, Windows)
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/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows)
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/ 1250 - Central Europe (Windows)
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/ 1251 - Cyrillic (Windows)
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/ 1252 - Latin 1 (Windows)
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/ 1253 - Greek (Windows)
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/ 1254 - Turkish (Windows)
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/ 1255 - Hebrew (Windows)
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/ 1256 - Arabic (Windows)
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/ 1257 - Baltic (Windows)
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/ 1258 - Vietnam (OEM, Windows)
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/ 437 - U.S. (OEM)
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/ 720 - Arabic (OEM)
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/ 737 - Greek (OEM)
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/ 775 - Baltic (OEM)
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/ 850 - Multilingual Latin 1 (OEM)
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/ 858 - Multilingual Latin 1 + Euro (OEM)
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/ 852 - Latin 2 (OEM)
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/ 855 - Cyrillic (OEM)
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/ 866 - Russian (OEM)
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/ 857 - Turkish (OEM)
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/ 862 - Hebrew (OEM)
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/ 874 - Thai (OEM, Windows)
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/ 1 - ASCII only (Valid for non LFN cfg.)
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*/
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#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */
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#define ff_memalloc xzalloc
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#define ff_memfree free
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/* The _USE_LFN option switches the LFN support.
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/
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/ 0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
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/ 1: Enable LFN with static working buffer on the BSS. Always NOT reentrant.
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/ 2: Enable LFN with dynamic working buffer on the STACK.
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/ 3: Enable LFN with dynamic working buffer on the HEAP.
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/
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/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. To enable LFN,
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/ Unicode handling functions ff_convert() and ff_wtoupper() must be added
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/ to the project. When enable to use heap, memory control functions
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/ ff_memalloc() and ff_memfree() must be added to the project. */
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#define _LFN_UNICODE 0 /* 0:ANSI/OEM or 1:Unicode */
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/* To switch the character code set on FatFs API to Unicode,
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/ enable LFN feature and set _LFN_UNICODE to 1. */
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/*---------------------------------------------------------------------------/
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/ Physical Drive Configurations
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/----------------------------------------------------------------------------*/
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#define _VOLUMES 1
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/* Number of volumes (logical drives) to be used. */
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#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */
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/* Maximum sector size to be handled.
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/ Always set 512 for memory card and hard disk but a larger value may be
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/ required for on-board flash memory, floppy disk and optical disk.
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/ When _MAX_SS is larger than 512, it configures FatFs to variable sector size
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/ and GET_SECTOR_SIZE command must be implememted to the disk_ioctl function. */
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#define _USE_ERASE 0 /* 0:Disable or 1:Enable */
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/* To enable sector erase feature, set _USE_ERASE to 1. CTRL_ERASE_SECTOR command
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/ should be added to the disk_ioctl functio. */
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/*---------------------------------------------------------------------------/
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/ System Configurations
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/----------------------------------------------------------------------------*/
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#define _WORD_ACCESS 0 /* 0 or 1 */
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/* Set 0 first and it is always compatible with all platforms. The _WORD_ACCESS
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/ option defines which access method is used to the word data on the FAT volume.
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/
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/ 0: Byte-by-byte access.
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/ 1: Word access. Do not choose this unless following condition is met.
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/
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/ When the byte order on the memory is big-endian or address miss-aligned word
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/ access results incorrect behavior, the _WORD_ACCESS must be set to 0.
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/ If it is not the case, the value can also be set to 1 to improve the
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/ performance and code size. */
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/* A header file that defines sync object types on the O/S, such as
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/ windows.h, ucos_ii.h and semphr.h, must be included prior to ff.h. */
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#define _FS_TIMEOUT 1000 /* Timeout period in unit of time ticks */
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#define _SYNC_t HANDLE /* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */
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#define _FS_SHARE 0 /* 0:Disable or >=1:Enable */
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/* To enable file shareing feature, set _FS_SHARE to 1 or greater. The value
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defines how many files can be opened simultaneously. */
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#endif /* _FFCONFIG */
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