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[dfs_v1][elmfat] Update to clean elm-fatfs R0.15 patch3

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Co-authored-by: BernardXiong <1241087+BernardXiong@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2025-10-28 23:52:41 +00:00
parent f9e56760e9
commit cd0fb19d2f
6 changed files with 459 additions and 414 deletions
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10
components/dfs/dfs_v1/filesystems/elmfat/00history.txt
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@@ -357,3 +357,13 @@ R0.14b (April 17, 2021)
Fixed some compiler warnings. Fixed some compiler warnings.
R0.15 (November 6, 2022)
Changed user provided synchronization functions in order to completely eliminate the platform dependency from FatFs code.
FF_SYNC_t is removed from the configuration options.
Fixed a potential error in f_mount when FF_FS_REENTRANT.
Fixed file lock control FF_FS_LOCK is not mutal excluded when FF_FS_REENTRANT && FF_VOLUMES > 1 is true.
Fixed f_mkfs() creates broken exFAT volume when the size of volume is >= 2^32 sectors.
Fixed string functions cannot write the unicode characters not in BMP when FF_LFN_UNICODE == 2 (UTF-8).
Fixed a compatibility issue in identification of GPT header.

2
components/dfs/dfs_v1/filesystems/elmfat/00readme.txt
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@@ -1,4 +1,4 @@
FatFs Module Source Files R0.14b FatFs Module Source Files R0.15
FILES FILES

640
components/dfs/dfs_v1/filesystems/elmfat/ff.c
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71
components/dfs/dfs_v1/filesystems/elmfat/ff.h
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@@ -1,8 +1,8 @@
/*----------------------------------------------------------------------------/ /*----------------------------------------------------------------------------/
/ FatFs - Generic FAT Filesystem module R0.14b / / FatFs - Generic FAT Filesystem module R0.15 /
/-----------------------------------------------------------------------------/ /-----------------------------------------------------------------------------/
/ /
/ Copyright (C) 2021, ChaN, all right reserved. / Copyright (C) 2022, ChaN, all right reserved.
/ /
/ FatFs module is an open source software. Redistribution and use of FatFs in / FatFs module is an open source software. Redistribution and use of FatFs in
/ source and binary forms, with or without modification, are permitted provided / source and binary forms, with or without modification, are permitted provided
@@ -20,13 +20,12 @@
#ifndef FF_DEFINED #ifndef FF_DEFINED
#define FF_DEFINED 86631 /* Revision ID */ #define FF_DEFINED 80286 /* Revision ID */
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
#include <rtthread.h>
#include "ffconf.h" /* FatFs configuration options */ #include "ffconf.h" /* FatFs configuration options */
#if FF_DEFINED != FFCONF_DEF #if FF_DEFINED != FFCONF_DEF
@@ -132,10 +131,11 @@ extern const char* VolumeStr[FF_VOLUMES]; /* User defied volume ID */
typedef struct { typedef struct {
BYTE fs_type; /* Filesystem type (0:not mounted) */ BYTE fs_type; /* Filesystem type (0:not mounted) */
BYTE pdrv; /* Associated physical drive */ BYTE pdrv; /* Volume hosting physical drive */
BYTE ldrv; /* Logical drive number (used only when FF_FS_REENTRANT) */
BYTE n_fats; /* Number of FATs (1 or 2) */ BYTE n_fats; /* Number of FATs (1 or 2) */
BYTE wflag; /* win[] flag (b0:dirty) */ BYTE wflag; /* win[] status (b0:dirty) */
BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */ BYTE fsi_flag; /* FSINFO status (b7:disabled, b0:dirty) */
WORD id; /* Volume mount ID */ WORD id; /* Volume mount ID */
WORD n_rootdir; /* Number of root directory entries (FAT12/16) */ WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
WORD csize; /* Cluster size [sectors] */ WORD csize; /* Cluster size [sectors] */
@@ -148,9 +148,6 @@ typedef struct {
#if FF_FS_EXFAT #if FF_FS_EXFAT
BYTE* dirbuf; /* Directory entry block scratchpad buffer for exFAT */ BYTE* dirbuf; /* Directory entry block scratchpad buffer for exFAT */
#endif #endif
#if FF_FS_REENTRANT
FF_SYNC_t sobj; /* Identifier of sync object */
#endif
#if !FF_FS_READONLY #if !FF_FS_READONLY
DWORD last_clst; /* Last allocated cluster */ DWORD last_clst; /* Last allocated cluster */
DWORD free_clst; /* Number of free clusters */ DWORD free_clst; /* Number of free clusters */
@@ -164,10 +161,10 @@ typedef struct {
#endif #endif
#endif #endif
DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */ DWORD n_fatent; /* Number of FAT entries (number of clusters + 2) */
DWORD fsize; /* Size of an FAT [sectors] */ DWORD fsize; /* Number of sectors per FAT */
LBA_t volbase; /* Volume base sector */ LBA_t volbase; /* Volume base sector */
LBA_t fatbase; /* FAT base sector */ LBA_t fatbase; /* FAT base sector */
LBA_t dirbase; /* Root directory base sector/cluster */ LBA_t dirbase; /* Root directory base sector (FAT12/16) or cluster (FAT32/exFAT) */
LBA_t database; /* Data base sector */ LBA_t database; /* Data base sector */
#if FF_FS_EXFAT #if FF_FS_EXFAT
LBA_t bitbase; /* Allocation bitmap base sector */ LBA_t bitbase; /* Allocation bitmap base sector */
@@ -182,7 +179,7 @@ typedef struct {
typedef struct { typedef struct {
FATFS* fs; /* Pointer to the hosting volume of this object */ FATFS* fs; /* Pointer to the hosting volume of this object */
WORD id; /* Hosting volume mount ID */ WORD id; /* Hosting volume's mount ID */
BYTE attr; /* Object attribute */ BYTE attr; /* Object attribute */
BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous, =3:fragmented in this session, b2:sub-directory stretched) */ BYTE stat; /* Object chain status (b1-0: =0:not contiguous, =2:contiguous, =3:fragmented in this session, b2:sub-directory stretched) */
DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */ DWORD sclust; /* Object data start cluster (0:no cluster or root directory) */
@@ -251,7 +248,7 @@ typedef struct {
WORD ftime; /* Modified time */ WORD ftime; /* Modified time */
BYTE fattrib; /* File attribute */ BYTE fattrib; /* File attribute */
#if FF_USE_LFN #if FF_USE_LFN
TCHAR altname[FF_SFN_BUF + 1];/* Altenative file name */ TCHAR altname[FF_SFN_BUF + 1];/* Alternative file name */
TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */ TCHAR fname[FF_LFN_BUF + 1]; /* Primary file name */
#else #else
TCHAR fname[12 + 1]; /* File name */ TCHAR fname[12 + 1]; /* File name */
@@ -299,8 +296,10 @@ typedef enum {
/*--------------------------------------------------------------*/
/* FatFs Module Application Interface */
/*--------------------------------------------------------------*/ /*--------------------------------------------------------------*/
/* FatFs module application interface */
FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */ FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
FRESULT f_close (FIL* fp); /* Close an open file object */ FRESULT f_close (FIL* fp); /* Close an open file object */
@@ -312,7 +311,6 @@ FRESULT f_sync (FIL* fp); /* Flush cached data of the writing file */
FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */ FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
FRESULT f_closedir (DIR* dp); /* Close an open directory */ FRESULT f_closedir (DIR* dp); /* Close an open directory */
FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */ FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
FRESULT f_seekdir(DIR *dj, int offset); /* Seek in directory */
FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */ FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */ FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */
FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */ FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
@@ -338,6 +336,8 @@ int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */ int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */ TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
/* Some API fucntions are implemented as macro */
#define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize)) #define f_eof(fp) ((int)((fp)->fptr == (fp)->obj.objsize))
#define f_error(fp) ((fp)->err) #define f_error(fp) ((fp)->err)
#define f_tell(fp) ((fp)->fptr) #define f_tell(fp) ((fp)->fptr)
@@ -351,38 +351,43 @@ TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the fil
/*--------------------------------------------------------------*/ /*--------------------------------------------------------------*/
/* Additional user defined functions */ /* Additional Functions */
/*--------------------------------------------------------------*/
/* RTC function */ /* RTC function (provided by user) */
#if !FF_FS_READONLY && !FF_FS_NORTC #if !FF_FS_READONLY && !FF_FS_NORTC
DWORD get_fattime (void); DWORD get_fattime (void); /* Get current time */
#endif #endif
/* LFN support functions */
#if FF_USE_LFN >= 1 /* Code conversion (defined in unicode.c) */ /* LFN support functions (defined in ffunicode.c) */
#if FF_USE_LFN >= 1
WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */ WCHAR ff_oem2uni (WCHAR oem, WORD cp); /* OEM code to Unicode conversion */
WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */ WCHAR ff_uni2oem (DWORD uni, WORD cp); /* Unicode to OEM code conversion */
DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */ DWORD ff_wtoupper (DWORD uni); /* Unicode upper-case conversion */
#endif #endif
#if FF_USE_LFN == 3 /* Dynamic memory allocation */
void* ff_memalloc (UINT msize); /* Allocate memory block */
void ff_memfree (void* mblock); /* Free memory block */
#endif
/* Sync functions */
#if FF_FS_REENTRANT /* O/S dependent functions (samples available in ffsystem.c) */
int ff_cre_syncobj (BYTE vol, FF_SYNC_t* sobj); /* Create a sync object */
int ff_req_grant (FF_SYNC_t sobj); /* Lock sync object */ #if FF_USE_LFN == 3 /* Dynamic memory allocation */
void ff_rel_grant (FF_SYNC_t sobj); /* Unlock sync object */ void* ff_memalloc (UINT msize); /* Allocate memory block */
int ff_del_syncobj (FF_SYNC_t sobj); /* Delete a sync object */ void ff_memfree (void* mblock); /* Free memory block */
#endif
#if FF_FS_REENTRANT /* Sync functions */
int ff_mutex_create (int vol); /* Create a sync object */
void ff_mutex_delete (int vol); /* Delete a sync object */
int ff_mutex_take (int vol); /* Lock sync object */
void ff_mutex_give (int vol); /* Unlock sync object */
#endif #endif
/*--------------------------------------------------------------*/ /*--------------------------------------------------------------*/
/* Flags and offset address */ /* Flags and Offset Address */
/*--------------------------------------------------------------*/
/* File access mode and open method flags (3rd argument of f_open) */ /* File access mode and open method flags (3rd argument of f_open) */
#define FA_READ 0x01 #define FA_READ 0x01

106
components/dfs/dfs_v1/filesystems/elmfat/ffconf.h
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@@ -1,8 +1,8 @@
/*---------------------------------------------------------------------------/ /*---------------------------------------------------------------------------/
/ FatFs Functional Configurations / Configurations of FatFs Module
/---------------------------------------------------------------------------*/ /---------------------------------------------------------------------------*/
#define FFCONF_DEF 86631 /* Revision ID */ #define FFCONF_DEF 80286 /* Revision ID */
/*---------------------------------------------------------------------------/ /*---------------------------------------------------------------------------/
/ Function Configurations / Function Configurations
@@ -30,11 +30,11 @@
/ f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */ / f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
#define FF_USE_MKFS 1 #define FF_USE_MKFS 0
/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */ /* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
#define FF_USE_FASTSEEK 1 #define FF_USE_FASTSEEK 0
/* This option switches fast seek function. (0:Disable or 1:Enable) */ /* This option switches fast seek function. (0:Disable or 1:Enable) */
@@ -57,8 +57,8 @@
#define FF_USE_STRFUNC 0 #define FF_USE_STRFUNC 0
#define FF_PRINT_LLI 0 #define FF_PRINT_LLI 1
#define FF_PRINT_FLOAT 0 #define FF_PRINT_FLOAT 1
#define FF_STRF_ENCODE 3 #define FF_STRF_ENCODE 3
/* FF_USE_STRFUNC switches string functions, f_gets(), f_putc(), f_puts() and /* FF_USE_STRFUNC switches string functions, f_gets(), f_putc(), f_puts() and
/ f_printf(). / f_printf().
@@ -68,7 +68,7 @@
/ 2: Enable with LF-CRLF conversion. / 2: Enable with LF-CRLF conversion.
/ /
/ FF_PRINT_LLI = 1 makes f_printf() support long long argument and FF_PRINT_FLOAT = 1/2 / FF_PRINT_LLI = 1 makes f_printf() support long long argument and FF_PRINT_FLOAT = 1/2
makes f_printf() support floating point argument. These features want C99 or later. / makes f_printf() support floating point argument. These features want C99 or later.
/ When FF_LFN_UNICODE >= 1 with LFN enabled, string functions convert the character / When FF_LFN_UNICODE >= 1 with LFN enabled, string functions convert the character
/ encoding in it. FF_STRF_ENCODE selects assumption of character encoding ON THE FILE / encoding in it. FF_STRF_ENCODE selects assumption of character encoding ON THE FILE
/ to be read/written via those functions. / to be read/written via those functions.
@@ -84,11 +84,7 @@
/ Locale and Namespace Configurations / Locale and Namespace Configurations
/---------------------------------------------------------------------------*/ /---------------------------------------------------------------------------*/
#ifdef RT_DFS_ELM_CODE_PAGE #define FF_CODE_PAGE 932
# define FF_CODE_PAGE RT_DFS_ELM_CODE_PAGE
#else
# define FF_CODE_PAGE 936
#endif
/* This option specifies the OEM code page to be used on the target system. /* This option specifies the OEM code page to be used on the target system.
/ Incorrect code page setting can cause a file open failure. / Incorrect code page setting can cause a file open failure.
/ /
@@ -117,13 +113,8 @@
*/ */
#if RT_DFS_ELM_USE_LFN #define FF_USE_LFN 0
#define FF_USE_LFN RT_DFS_ELM_USE_LFN #define FF_MAX_LFN 255
#define FF_MAX_LFN RT_DFS_ELM_MAX_LFN
#else
#define FF_USE_LFN 0 /* 0 to 3 */
#define FF_MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */
#endif
/* The FF_USE_LFN switches the support for LFN (long file name). /* The FF_USE_LFN switches the support for LFN (long file name).
/ /
/ 0: Disable LFN. FF_MAX_LFN has no effect. / 0: Disable LFN. FF_MAX_LFN has no effect.
@@ -142,20 +133,7 @@
/ ff_memfree() exemplified in ffsystem.c, need to be added to the project. */ / ff_memfree() exemplified in ffsystem.c, need to be added to the project. */
#ifdef RT_DFS_ELM_LFN_UNICODE #define FF_LFN_UNICODE 0
/* This option switches the character encoding on the API when LFN is enabled.
/
/ 0: ANSI/OEM in current CP (TCHAR = char)
/ 1: Unicode in UTF-16 (TCHAR = WCHAR)
/ 2: Unicode in UTF-8 (TCHAR = char)
/ 3: Unicode in UTF-32 (TCHAR = DWORD)
/
/ Also behavior of string I/O functions will be affected by this option.
/ When LFN is not enabled, this option has no effect. */
#define FF_LFN_UNICODE RT_DFS_ELM_LFN_UNICODE /* 0:ANSI/OEM or 1:Unicode */
#else
#define FF_LFN_UNICODE 0 /* 0:ANSI/OEM or 1:Unicode */
#endif
/* This option switches the character encoding on the API when LFN is enabled. /* This option switches the character encoding on the API when LFN is enabled.
/ /
/ 0: ANSI/OEM in current CP (TCHAR = char) / 0: ANSI/OEM in current CP (TCHAR = char)
@@ -188,11 +166,7 @@
/ Drive/Volume Configurations / Drive/Volume Configurations
/---------------------------------------------------------------------------*/ /---------------------------------------------------------------------------*/
#ifdef RT_DFS_ELM_DRIVES #define FF_VOLUMES 1
#define FF_VOLUMES RT_DFS_ELM_DRIVES
#else
#define FF_VOLUMES 1
#endif
/* Number of volumes (logical drives) to be used. (1-10) */ /* Number of volumes (logical drives) to be used. (1-10) */
@@ -204,7 +178,7 @@
/ logical drives. Number of items must not be less than FF_VOLUMES. Valid / logical drives. Number of items must not be less than FF_VOLUMES. Valid
/ characters for the volume ID strings are A-Z, a-z and 0-9, however, they are / characters for the volume ID strings are A-Z, a-z and 0-9, however, they are
/ compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is / compared in case-insensitive. If FF_STR_VOLUME_ID >= 1 and FF_VOLUME_STRS is
/ not defined, a user defined volume string table needs to be defined as: / not defined, a user defined volume string table is needed as:
/ /
/ const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",... / const char* VolumeStr[FF_VOLUMES] = {"ram","flash","sd","usb",...
*/ */
@@ -216,15 +190,11 @@
/ number and only an FAT volume found on the physical drive will be mounted. / number and only an FAT volume found on the physical drive will be mounted.
/ When this function is enabled (1), each logical drive number can be bound to / When this function is enabled (1), each logical drive number can be bound to
/ arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk() / arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
/ funciton will be available. */ / function will be available. */
#define FF_MIN_SS 512 #define FF_MIN_SS 512
#ifdef RT_DFS_ELM_MAX_SECTOR_SIZE #define FF_MAX_SS 512
#define FF_MAX_SS RT_DFS_ELM_MAX_SECTOR_SIZE
#else
#define FF_MAX_SS 512 /* 512, 1024, 2048 or 4096 */
#endif
/* This set of options configures the range of sector size to be supported. (512, /* This set of options configures the range of sector size to be supported. (512,
/ 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and / 1024, 2048 or 4096) Always set both 512 for most systems, generic memory card and
/ harddisk, but a larger value may be required for on-board flash memory and some / harddisk, but a larger value may be required for on-board flash memory and some
@@ -260,11 +230,8 @@
/ Instead of private sector buffer eliminated from the file object, common sector / Instead of private sector buffer eliminated from the file object, common sector
/ buffer in the filesystem object (FATFS) is used for the file data transfer. */ / buffer in the filesystem object (FATFS) is used for the file data transfer. */
#ifdef RT_DFS_ELM_USE_EXFAT
#define FF_FS_EXFAT 1 #define FF_FS_EXFAT 0
#else
#define FF_FS_EXFAT 0
#endif
/* This option switches support for exFAT filesystem. (0:Disable or 1:Enable) /* This option switches support for exFAT filesystem. (0:Disable or 1:Enable)
/ To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1) / To enable exFAT, also LFN needs to be enabled. (FF_USE_LFN >= 1)
/ Note that enabling exFAT discards ANSI C (C89) compatibility. */ / Note that enabling exFAT discards ANSI C (C89) compatibility. */
@@ -273,10 +240,10 @@
#define FF_FS_NORTC 0 #define FF_FS_NORTC 0
#define FF_NORTC_MON 1 #define FF_NORTC_MON 1
#define FF_NORTC_MDAY 1 #define FF_NORTC_MDAY 1
#define FF_NORTC_YEAR 2020 #define FF_NORTC_YEAR 2022
/* The option FF_FS_NORTC switches timestamp functiton. If the system does not have /* The option FF_FS_NORTC switches timestamp feature. If the system does not have
/ any RTC function or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable / an RTC or valid timestamp is not needed, set FF_FS_NORTC = 1 to disable the
/ the timestamp function. Every object modified by FatFs will have a fixed timestamp / timestamp feature. Every object modified by FatFs will have a fixed timestamp
/ defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time. / defined by FF_NORTC_MON, FF_NORTC_MDAY and FF_NORTC_YEAR in local time.
/ To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be / To enable timestamp function (FF_FS_NORTC = 0), get_fattime() function need to be
/ added to the project to read current time form real-time clock. FF_NORTC_MON, / added to the project to read current time form real-time clock. FF_NORTC_MON,
@@ -286,7 +253,7 @@
#define FF_FS_NOFSINFO 0 #define FF_FS_NOFSINFO 0
/* If you need to know correct free space on the FAT32 volume, set bit 0 of this /* 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 / option, and f_getfree() function at the first time after volume mount will force
/ a full FAT scan. Bit 1 controls the use of last allocated cluster number. / 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=0: Use free cluster count in the FSINFO if available.
@@ -308,34 +275,21 @@
/ lock control is independent of re-entrancy. */ / lock control is independent of re-entrancy. */
/* #include <somertos.h> // O/S definitions */ #define FF_FS_REENTRANT 0
#include <rtdef.h> #define FF_FS_TIMEOUT 1000
#ifdef RT_DFS_ELM_REENTRANT
#define FF_FS_REENTRANT 1 /* 0 or 1 */
#else
#define FF_FS_REENTRANT 0 /* 0:Disable or 1:Enable */
#endif
#ifndef RT_DFS_ELM_MUTEX_TIMEOUT
#define RT_DFS_ELM_MUTEX_TIMEOUT 3000
#endif
#define FF_FS_TIMEOUT RT_DFS_ELM_MUTEX_TIMEOUT
#define FF_SYNC_t rt_mutex_t
/* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs /* The option FF_FS_REENTRANT switches the re-entrancy (thread safe) of the FatFs
/ module itself. Note that regardless of this option, file access to different / 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() / 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 / and f_fdisk() function, are always not re-entrant. Only file/directory access
/ to the same volume is under control of this function. / to the same volume is under control of this featuer.
/ /
/ 0: Disable re-entrancy. FF_FS_TIMEOUT and FF_SYNC_t have no effect. / 0: Disable re-entrancy. FF_FS_TIMEOUT have no effect.
/ 1: Enable re-entrancy. Also user provided synchronization handlers, / 1: Enable re-entrancy. Also user provided synchronization handlers,
/ ff_req_grant(), ff_rel_grant(), ff_del_syncobj() and ff_cre_syncobj() / ff_mutex_create(), ff_mutex_delete(), ff_mutex_take() and ff_mutex_give()
/ function, must be added to the project. Samples are available in / function, must be added to the project. Samples are available in ffsystem.c.
/ option/syscall.c.
/ /
/ The FF_FS_TIMEOUT defines timeout period in unit of time tick. / The FF_FS_TIMEOUT defines timeout period in unit of O/S time tick.
/ The FF_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.h. */

44
components/dfs/dfs_v1/filesystems/elmfat/ffunicode.c
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@@ -1,13 +1,13 @@
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* Unicode handling functions for FatFs R0.13+ */ /* Unicode Handling Functions for FatFs R0.13 and Later */
/*------------------------------------------------------------------------*/
/* This module will occupy a huge memory in the .rodata section when the */
/* FatFs is configured for LFN with DBCS. If the system has a Unicode */
/* library for the code conversion, this module should be modified to use */
/* it to avoid silly memory consumption. */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* This module will occupy a huge memory in the .const section when the /
/ FatFs is configured for LFN with DBCS. If the system has any Unicode /
/ utilitiy for the code conversion, this module should be modified to use /
/ that function to avoid silly memory consumption. /
/-------------------------------------------------------------------------*/
/* /*
/ Copyright (C) 2014, ChaN, all right reserved. / Copyright (C) 2022, ChaN, all right reserved.
/ /
/ FatFs module is an open source software. Redistribution and use of FatFs in / FatFs module is an open source software. Redistribution and use of FatFs in
/ source and binary forms, with or without modification, are permitted provided / source and binary forms, with or without modification, are permitted provided
@@ -25,7 +25,7 @@
#include "ff.h" #include "ff.h"
#if FF_USE_LFN /* This module will be blanked if non-LFN configuration */ #if FF_USE_LFN != 0 /* This module will be blanked if in non-LFN configuration */
#define MERGE2(a, b) a ## b #define MERGE2(a, b) a ## b
#define CVTBL(tbl, cp) MERGE2(tbl, cp) #define CVTBL(tbl, cp) MERGE2(tbl, cp)
@@ -15214,8 +15214,8 @@ static const WCHAR uc869[] = { /* CP869(Greek 2) to Unicode conversion table */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* OEM <==> Unicode conversions for static code page configuration */ /* OEM <==> Unicode Conversions for Static Code Page Configuration with */
/* SBCS fixed code page */ /* SBCS Fixed Code Page */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
#if FF_CODE_PAGE != 0 && FF_CODE_PAGE < 900 #if FF_CODE_PAGE != 0 && FF_CODE_PAGE < 900
@@ -15225,7 +15225,7 @@ WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */
) )
{ {
WCHAR c = 0; WCHAR c = 0;
const WCHAR *p = CVTBL(uc, FF_CODE_PAGE); const WCHAR* p = CVTBL(uc, FF_CODE_PAGE);
if (uni < 0x80) { /* ASCII? */ if (uni < 0x80) { /* ASCII? */
@@ -15247,7 +15247,7 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
) )
{ {
WCHAR c = 0; WCHAR c = 0;
const WCHAR *p = CVTBL(uc, FF_CODE_PAGE); const WCHAR* p = CVTBL(uc, FF_CODE_PAGE);
if (oem < 0x80) { /* ASCII? */ if (oem < 0x80) { /* ASCII? */
@@ -15267,8 +15267,8 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* OEM <==> Unicode conversions for static code page configuration */ /* OEM <==> Unicode Conversions for Static Code Page Configuration with */
/* DBCS fixed code page */ /* DBCS Fixed Code Page */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
#if FF_CODE_PAGE >= 900 #if FF_CODE_PAGE >= 900
@@ -15277,7 +15277,7 @@ WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */
WORD cp /* Code page for the conversion */ WORD cp /* Code page for the conversion */
) )
{ {
const WCHAR *p; const WCHAR* p;
WCHAR c = 0, uc; WCHAR c = 0, uc;
UINT i = 0, n, li, hi; UINT i = 0, n, li, hi;
@@ -15313,7 +15313,7 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
WORD cp /* Code page for the conversion */ WORD cp /* Code page for the conversion */
) )
{ {
const WCHAR *p; const WCHAR* p;
WCHAR c = 0; WCHAR c = 0;
UINT i = 0, n, li, hi; UINT i = 0, n, li, hi;
@@ -15346,7 +15346,7 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* OEM <==> Unicode conversions for dynamic code page configuration */ /* OEM <==> Unicode Conversions for Dynamic Code Page Configuration */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
#if FF_CODE_PAGE == 0 #if FF_CODE_PAGE == 0
@@ -15360,7 +15360,7 @@ WCHAR ff_uni2oem ( /* Returns OEM code character, zero on error */
WORD cp /* Code page for the conversion */ WORD cp /* Code page for the conversion */
) )
{ {
const WCHAR *p; const WCHAR* p;
WCHAR c = 0, uc; WCHAR c = 0, uc;
UINT i, n, li, hi; UINT i, n, li, hi;
@@ -15412,7 +15412,7 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
WORD cp /* Code page for the conversion */ WORD cp /* Code page for the conversion */
) )
{ {
const WCHAR *p; const WCHAR* p;
WCHAR c = 0; WCHAR c = 0;
UINT i, n, li, hi; UINT i, n, li, hi;
@@ -15458,14 +15458,14 @@ WCHAR ff_oem2uni ( /* Returns Unicode character in UTF-16, zero on error */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
/* Unicode up-case conversion */ /* Unicode Up-case Conversion */
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
DWORD ff_wtoupper ( /* Returns up-converted code point */ DWORD ff_wtoupper ( /* Returns up-converted code point */
DWORD uni /* Unicode code point to be up-converted */ DWORD uni /* Unicode code point to be up-converted */
) )
{ {
const WORD *p; const WORD* p;
WORD uc, bc, nc, cmd; WORD uc, bc, nc, cmd;
static const WORD cvt1[] = { /* Compressed up conversion table for U+0000 - U+0FFF */ static const WORD cvt1[] = { /* Compressed up conversion table for U+0000 - U+0FFF */
/* Basic Latin */ /* Basic Latin */
@@ -15590,4 +15590,4 @@ DWORD ff_wtoupper ( /* Returns up-converted code point */
} }
#endif /* #if FF_USE_LFN */ #endif /* #if FF_USE_LFN != 0 */