[dfs][elmfat] Update elm-fatfs to R0.16

components/dfs/dfs_v1/filesystems/elmfat/00history.txt

@@ -357,3 +357,33 @@ R0.14b (April 17, 2021)
   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.
+
+
+
+R0.15a (November 22, 2024)
+  Fixed a complie error when FF_FS_LOCK != 0.
+  Fixed a potential issue when work FatFs concurrency with FF_FS_REENTRANT, FF_VOLUMES >= 2 and FF_FS_LOCK > 0.
+  Made f_setlabel() accept a volume label in Unix style volume ID when FF_STR_VOLUME_ID == 2.
+  Made FatFs update PercInUse field in exFAT VBR. (A preceding f_getfree() is needed for the accuracy)
+
+
+
+R0.15b (June 21, 2025)
+  Added support for timestamp of created time. (FF_FS_CRTIME)
+  Fixed FatFs fails to load the FsInfo in FAT32 volumes and the f_getfree always be forced a full FAT scan which takes a long time. (appeared at R0.15a)
+
+
+
+R0.16 (July 22, 2025)
+  Removed a long-pending limitation that f_getcwd and double-dot .. in the path name did not work on the exFAT volume.
+  Fixed f_readdir cannot detect end of directory and it leads the application process into infinite loop. (appeared at R0.15b)
+  Fixed dot names with terminating separator or duplicated separator are rejected when LFN is not enabled.

components/dfs/dfs_v1/filesystems/elmfat/00readme.txt

@@ -1,4 +1,4 @@
-FatFs Module Source Files R0.14b
+FatFs Module Source Files R0.16
 
 
 FILES

components/dfs/dfs_v1/filesystems/elmfat/dfs_elm.c

@@ -997,41 +997,41 @@ DWORD get_fattime(void)
 }
 
 #if FF_FS_REENTRANT
-int ff_cre_syncobj(BYTE drv, FF_SYNC_t *m)
+static rt_mutex_t Mutex[FF_VOLUMES + 1];
+
+int ff_mutex_create (int vol)
 {
     char name[8];
     rt_mutex_t mutex;
 
-    rt_snprintf(name, sizeof(name), "fat%d", drv);
+    rt_snprintf(name, sizeof(name), "fat%d", vol);
     mutex = rt_mutex_create(name, RT_IPC_FLAG_PRIO);
     if (mutex != RT_NULL)
     {
-        *m = mutex;
+        Mutex[vol] = mutex;
         return RT_TRUE;
     }
 
     return RT_FALSE;
 }
 
-int ff_del_syncobj(FF_SYNC_t m)
+void ff_mutex_delete (int vol)
 {
-    if (m != RT_NULL)
-        rt_mutex_delete(m);
-
-    return RT_TRUE;
+    if (Mutex[vol] != RT_NULL)
+        rt_mutex_delete(Mutex[vol]);
 }
 
-int ff_req_grant(FF_SYNC_t m)
+int ff_mutex_take (int vol)
 {
-    if (rt_mutex_take(m, FF_FS_TIMEOUT) == RT_EOK)
+    if (rt_mutex_take(Mutex[vol], FF_FS_TIMEOUT) == RT_EOK)
         return RT_TRUE;
 
     return RT_FALSE;
 }
 
-void ff_rel_grant(FF_SYNC_t m)
+void ff_mutex_give (int vol)
 {
-    rt_mutex_release(m);
+    rt_mutex_release(Mutex[vol]);
 }
 
 #endif

components/dfs/dfs_v1/filesystems/elmfat/diskio.h

@@ -1,5 +1,5 @@
 /*-----------------------------------------------------------------------/
-/  Low level disk interface modlue include file   (C)ChaN, 2019          /
+/  Low level disk interface modlue include file   (C)ChaN, 2025          /
 /-----------------------------------------------------------------------*/
 
 #ifndef _DISKIO_DEFINED
@@ -55,7 +55,7 @@ DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 #define CTRL_EJECT			7	/* Eject media */
 #define CTRL_FORMAT			8	/* Create physical format on the media */
 
-/* MMC/SDC specific ioctl command */
+/* MMC/SDC specific ioctl command (Not used by FatFs) */
 #define MMC_GET_TYPE		10	/* Get card type */
 #define MMC_GET_CSD			11	/* Get CSD */
 #define MMC_GET_CID			12	/* Get CID */
@@ -65,7 +65,7 @@ DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 #define ISDIO_WRITE			56	/* Write data to SD iSDIO register */
 #define ISDIO_MRITE			57	/* Masked write data to SD iSDIO register */
 
-/* ATA/CF specific ioctl command */
+/* ATA/CF specific ioctl command (Not used by FatFs) */
 #define ATA_GET_REV			20	/* Get F/W revision */
 #define ATA_GET_MODEL		21	/* Get model name */
 #define ATA_GET_SN			22	/* Get serial number */

components/dfs/dfs_v1/filesystems/elmfat/ffunicode.c

@@ -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
 / source and binary forms, with or without modification, are permitted provided
@@ -25,7 +25,7 @@
 
 #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 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        */
-/* SBCS fixed code page                                                   */
+/* OEM <==> Unicode Conversions for Static Code Page Configuration with   */
+/* SBCS Fixed Code Page                                                   */
 /*------------------------------------------------------------------------*/
 
 #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;
-	const WCHAR *p = CVTBL(uc, FF_CODE_PAGE);
+	const WCHAR* p = CVTBL(uc, FF_CODE_PAGE);
 
 
 	if (uni < 0x80) {	/* ASCII? */
@@ -15247,7 +15247,7 @@ WCHAR ff_oem2uni (	/* Returns Unicode character in UTF-16, zero on error */
 )
 {
 	WCHAR c = 0;
-	const WCHAR *p = CVTBL(uc, FF_CODE_PAGE);
+	const WCHAR* p = CVTBL(uc, FF_CODE_PAGE);
 
 
 	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        */
-/* DBCS fixed code page                                                   */
+/* OEM <==> Unicode Conversions for Static Code Page Configuration with   */
+/* DBCS Fixed Code Page                                                   */
 /*------------------------------------------------------------------------*/
 
 #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 */
 )
 {
-	const WCHAR *p;
+	const WCHAR* p;
 	WCHAR c = 0, uc;
 	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 */
 )
 {
-	const WCHAR *p;
+	const WCHAR* p;
 	WCHAR c = 0;
 	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
@@ -15360,7 +15360,7 @@ WCHAR ff_uni2oem (	/* Returns OEM code character, zero on error */
 	WORD	cp		/* Code page for the conversion */
 )
 {
-	const WCHAR *p;
+	const WCHAR* p;
 	WCHAR c = 0, uc;
 	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 */
 )
 {
-	const WCHAR *p;
+	const WCHAR* p;
 	WCHAR c = 0;
 	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 uni		/* Unicode code point to be up-converted */
 )
 {
-	const WORD *p;
+	const WORD* p;
 	WORD uc, bc, nc, cmd;
 	static const WORD cvt1[] = {	/* Compressed up conversion table for U+0000 - U+0FFF */
 		/* 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 */

components/dfs/dfs_v2/filesystems/elmfat/00history.txt

@@ -367,3 +367,23 @@ R0.15 (November 6, 2022)
   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.
 
+
+
+R0.15a (November 22, 2024)
+  Fixed a complie error when FF_FS_LOCK != 0.
+  Fixed a potential issue when work FatFs concurrency with FF_FS_REENTRANT, FF_VOLUMES >= 2 and FF_FS_LOCK > 0.
+  Made f_setlabel() accept a volume label in Unix style volume ID when FF_STR_VOLUME_ID == 2.
+  Made FatFs update PercInUse field in exFAT VBR. (A preceding f_getfree() is needed for the accuracy)
+
+
+
+R0.15b (June 21, 2025)
+  Added support for timestamp of created time. (FF_FS_CRTIME)
+  Fixed FatFs fails to load the FsInfo in FAT32 volumes and the f_getfree always be forced a full FAT scan which takes a long time. (appeared at R0.15a)
+
+
+
+R0.16 (July 22, 2025)
+  Removed a long-pending limitation that f_getcwd and double-dot .. in the path name did not work on the exFAT volume.
+  Fixed f_readdir cannot detect end of directory and it leads the application process into infinite loop. (appeared at R0.15b)
+  Fixed dot names with terminating separator or duplicated separator are rejected when LFN is not enabled.

components/dfs/dfs_v2/filesystems/elmfat/00readme.txt

@@ -1,4 +1,4 @@
-FatFs Module Source Files R0.15
+FatFs Module Source Files R0.16
 
 
 FILES

components/dfs/dfs_v2/filesystems/elmfat/diskio.h

@@ -1,5 +1,5 @@
 /*-----------------------------------------------------------------------/
-/  Low level disk interface modlue include file   (C)ChaN, 2019          /
+/  Low level disk interface modlue include file   (C)ChaN, 2025          /
 /-----------------------------------------------------------------------*/
 
 #ifndef _DISKIO_DEFINED
@@ -55,7 +55,7 @@ DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 #define CTRL_EJECT			7	/* Eject media */
 #define CTRL_FORMAT			8	/* Create physical format on the media */
 
-/* MMC/SDC specific ioctl command */
+/* MMC/SDC specific ioctl command (Not used by FatFs) */
 #define MMC_GET_TYPE		10	/* Get card type */
 #define MMC_GET_CSD			11	/* Get CSD */
 #define MMC_GET_CID			12	/* Get CID */
@@ -65,7 +65,7 @@ DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 #define ISDIO_WRITE			56	/* Write data to SD iSDIO register */
 #define ISDIO_MRITE			57	/* Masked write data to SD iSDIO register */
 
-/* ATA/CF specific ioctl command */
+/* ATA/CF specific ioctl command (Not used by FatFs) */
 #define ATA_GET_REV			20	/* Get F/W revision */
 #define ATA_GET_MODEL		21	/* Get model name */
 #define ATA_GET_SN			22	/* Get serial number */