diff --git a/lib/sw_services/xilffs/data/xilffs.mld b/lib/sw_services/xilffs/data/xilffs.mld
new file mode 100644
index 00000000..088fd44a
--- /dev/null
+++ b/lib/sw_services/xilffs/data/xilffs.mld
@@ -0,0 +1,54 @@
+###############################################################################
+#
+# Copyright (C) 2013 - 2014 Xilinx, Inc. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# Use of the Software is limited solely to applications:
+# (a) running on a Xilinx device, or
+# (b) that interact with a Xilinx device through a bus or interconnect.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# Except as contained in this notice, the name of the Xilinx shall not be used
+# in advertising or otherwise to promote the sale, use or other dealings in
+# this Software without prior written authorization from Xilinx.
+#
+###############################################################################
+#
+# Modification History
+#
+# Ver Who Date Changes
+# ----- ---- -------- -----------------------------------------------
+# 1.00a hk/sg 10/17/13 First release
+#
+##############################################################################
+
+OPTION psf_version = 2.1;
+
+BEGIN LIBRARY xilffs
+ OPTION drc = ffs_drc;
+ OPTION copyfiles = all;
+ OPTION REQUIRES_OS = (standalone);
+ OPTION APP_LINKER_FLAGS = "-Wl,--start-group,-lxilffs,-lxil,-lgcc,-lc,--end-group";
+ OPTION desc = "Generic Fat File System Library";
+ OPTION VERSION = 3.1;
+ OPTION NAME = xilffs;
+ PARAM name = fs_interface, desc = "Enables file system with selected interface. Enter 1 for SD.", type = int, default = 1;
+ PARAM name = enable_mmc, desc = "Enables MMC support if true. If false, SD is enabled.", type = bool, default = false;
+
+END LIBRARY
diff --git a/lib/sw_services/xilffs/data/xilffs.tcl b/lib/sw_services/xilffs/data/xilffs.tcl
new file mode 100644
index 00000000..3698be3e
--- /dev/null
+++ b/lib/sw_services/xilffs/data/xilffs.tcl
@@ -0,0 +1,151 @@
+###############################################################################
+#
+# Copyright (C) 2013 - 2014 Xilinx, Inc. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# Use of the Software is limited solely to applications:
+# (a) running on a Xilinx device, or
+# (b) that interact with a Xilinx device through a bus or interconnect.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# Except as contained in this notice, the name of the Xilinx shall not be used
+# in advertising or otherwise to promote the sale, use or other dealings in
+# this Software without prior written authorization from Xilinx.
+#
+###############################################################################
+#
+# Modification History
+#
+# Ver Who Date Changes
+# ----- ---- ------- -----------------------------------------------
+# 1.00a hk/sg 10/17/13 First release
+# 2.0 hk 12/13/13 Modified to use new TCL API's
+#
+##############################################################################
+
+#---------------------------------------------
+# FFS_drc - check system configuration and make sure
+# all components to run ISF are available.
+#---------------------------------------------
+
+proc ffs_drc {libhandle} {
+
+ # Check if any IP instances that use FATFS are present
+ set sw_processor [hsi::get_sw_processor]
+ set processor [hsi::get_cells [common::get_property HW_INSTANCE $sw_processor]]
+
+ set ffs_periphs_list [get_ffs_periphs $processor]
+
+ if { [llength $ffs_periphs_list] == 0 } {
+ puts "WARNING : No interface that uses file system is available \n"
+ }
+
+}
+
+proc get_ffs_periphs {processor} {
+ set periphs_list [hsi::utils::get_proc_slave_periphs $processor]
+ set ffs_periphs_list {}
+
+ global ffs_periphs_name_list
+ set ffs_periphs_name_list {}
+
+ foreach periph $periphs_list {
+ set periphname [common::get_property IP_NAME $periph]
+ # Checks if SD instance is present
+ # This can be expanded to add more instances.
+ if {$periphname == "ps7_sdio" || $periphname == "psu_sd"} {
+ lappend ffs_periphs_list $periph
+ lappend ffs_periphs_name_list $periphname
+ }
+ }
+
+ return $ffs_periphs_list
+}
+
+proc generate {libhandle} {
+
+}
+
+
+#-------
+# post_generate: called after generate called on all libraries
+#-------
+proc post_generate {libhandle} {
+ xgen_opts_file $libhandle
+}
+
+#-------
+# execs_generate: called after BSP's, libraries and drivers have been compiled
+# This procedure builds the libisf.a library
+#-------
+proc execs_generate {libhandle} {
+
+}
+
+
+proc xgen_opts_file {libhandle} {
+
+ # Open xparameters.h file
+ set file_handle [hsi::utils::open_include_file "xparameters.h"]
+
+ # Generate parameters for "file system with SD" and "MMC support"
+ puts $file_handle "/* Xilinx FAT File System Library (XilFFs) User Settings */"
+ set fs_interface [common::get_property CONFIG.fs_interface $libhandle]
+ set enable_mmc [common::get_property CONFIG.enable_mmc $libhandle]
+
+ # Checking if SD with FATFS is enabled.
+ # This can be expanded to add more interfaces.
+
+ global ffs_periphs_name_list
+ foreach periph $ffs_periphs_name_list {
+
+ if {$periph == "ps7_sdio" || $periph == "psu_sd"} {
+ if {$fs_interface == 1} {
+ puts $file_handle "\#define FILE_SYSTEM_INTERFACE_SD"
+ } else {
+ error "ERROR: Invalid interface selected \n"
+ }
+ }
+
+ }
+
+ # MMC support
+ if {$enable_mmc == true} {
+ puts $file_handle "\#define MMC_CARD"
+ }
+
+ close $file_handle
+
+ # Copy the include files to the include directory
+ set srcdir [file join src include]
+ set dstdir [file join .. .. include]
+
+ # Create dstdir if it does not exist
+ if { ! [file exists $dstdir] } {
+ file mkdir $dstdir
+ }
+
+ # Get list of files in the srcdir
+ set sources [glob -join $srcdir *.h]
+
+ # Copy each of the files in the list to dstdir
+ foreach source $sources {
+ file copy -force $source $dstdir
+ }
+}
diff --git a/lib/sw_services/xilffs/examples/xilffs_polled_example.c b/lib/sw_services/xilffs/examples/xilffs_polled_example.c
new file mode 100644
index 00000000..16721b68
--- /dev/null
+++ b/lib/sw_services/xilffs/examples/xilffs_polled_example.c
@@ -0,0 +1,223 @@
+/******************************************************************************
+*
+* Copyright (C) 2013 - 2014 Xilinx, Inc. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+/*****************************************************************************/
+/**
+*
+* @file xilffs_polled_example.c
+*
+*
+* @note This example uses file system with SD to write to and read from
+* an SD card using ADMA2 in polled mode.
+*
+* This example was tested using SD2.0 card and eMMC (using eMMC to SD adaptor).
+*
+* None.
+*
+*
+* MODIFICATION HISTORY:
+*
+* Ver Who Date Changes
+* ----- --- -------- -----------------------------------------------
+* 1.00a hk 10/17/13 First release
+* 2.2 hk 07/28/14 Make changes to enable use of data cache.
+*
+*
+*
+******************************************************************************/
+
+/***************************** Include Files *********************************/
+
+#include "xparameters.h" /* SDK generated parameters */
+#include "xsdps.h" /* SD device driver */
+#include "xil_printf.h"
+#include "ff.h"
+#include "xil_cache.h"
+
+/************************** Constant Definitions *****************************/
+
+
+/**************************** Type Definitions *******************************/
+
+/***************** Macros (Inline Functions) Definitions *********************/
+
+/************************** Function Prototypes ******************************/
+int FfsSdPolledExample(void);
+
+/************************** Variable Definitions *****************************/
+static FIL fil; /* File object */
+static FATFS fatfs;
+static char FileName[32] = "Test.bin";
+static char *SD_File;
+
+#ifdef __ICCARM__
+#pragma data_alignment = 32
+u8 DestinationAddress[10*1024*1024];
+u8 SourceAddress[10*1024*1024];
+#pragma data_alignment = 4
+#else
+u8 DestinationAddress[10*1024*1024] __attribute__ ((aligned(32)));
+u8 SourceAddress[10*1024*1024] __attribute__ ((aligned(32)));
+#endif
+
+#define TEST 7
+
+/*****************************************************************************/
+/**
+*
+* Main function to call the SD example.
+*
+* @param None
+*
+* @return XST_SUCCESS if successful, otherwise XST_FAILURE.
+*
+* @note None
+*
+******************************************************************************/
+int main(void)
+{
+ int Status;
+
+ xil_printf("SD Polled File System Example Test \r\n");
+
+ Status = FfsSdPolledExample();
+ if (Status != XST_SUCCESS) {
+ xil_printf("SD Polled File System Example Test failed \r\n");
+ return XST_FAILURE;
+ }
+
+ xil_printf("Successfully ran SD Polled File System Example Test \r\n");
+
+ return XST_SUCCESS;
+
+}
+
+/*****************************************************************************/
+/**
+*
+* File system example using SD driver to write to and read from an SD card
+* in polled mode. This example creates a new file on an
+* SD card (which is previously formatted with FATFS), write data to the file
+* and reads the same data back to verify.
+*
+* @param None
+*
+* @return XST_SUCCESS if successful, otherwise XST_FAILURE.
+*
+* @note None
+*
+******************************************************************************/
+int FfsSdPolledExample(void)
+{
+ FRESULT Res;
+ UINT NumBytesRead;
+ UINT NumBytesWritten;
+ u32 BuffCnt;
+ u32 FileSize = (8*1024*1024);
+ TCHAR *Path = "0:/";
+
+ for(BuffCnt = 0; BuffCnt < FileSize; BuffCnt++){
+ SourceAddress[BuffCnt] = TEST + BuffCnt;
+ }
+
+ /*
+ * Register volume work area, initialize device
+ */
+ Res = f_mount(&fatfs, Path, 0);
+
+ if (Res != FR_OK) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Open file with required permissions.
+ * Here - Creating new file with read/write permissions. .
+ */
+ SD_File = (char *)FileName;
+
+ Res = f_open(&fil, SD_File, FA_CREATE_ALWAYS | FA_WRITE | FA_READ);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Pointer to beginning of file .
+ */
+ Res = f_lseek(&fil, 0);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Write data to file.
+ */
+ Res = f_write(&fil, (const void*)SourceAddress, FileSize,
+ &NumBytesWritten);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Pointer to beginning of file .
+ */
+ Res = f_lseek(&fil, 0);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Read data from file.
+ */
+ Res = f_read(&fil, (void*)DestinationAddress, FileSize,
+ &NumBytesRead);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ /*
+ * Data verification
+ */
+ for(BuffCnt = 0; BuffCnt < FileSize; BuffCnt++){
+ if(SourceAddress[BuffCnt] != DestinationAddress[BuffCnt]){
+ return XST_FAILURE;
+ }
+ }
+
+ /*
+ * Close file.
+ */
+ Res = f_close(&fil);
+ if (Res) {
+ return XST_FAILURE;
+ }
+
+ return XST_SUCCESS;
+}
diff --git a/lib/sw_services/xilffs/src/Makefile b/lib/sw_services/xilffs/src/Makefile
new file mode 100644
index 00000000..00bf9dbf
--- /dev/null
+++ b/lib/sw_services/xilffs/src/Makefile
@@ -0,0 +1,105 @@
+###############################################################################
+#
+# Copyright (C) 2013 - 2014 Xilinx, Inc. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# Use of the Software is limited solely to applications:
+# (a) running on a Xilinx device, or
+# (b) that interact with a Xilinx device through a bus or interconnect.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# Except as contained in this notice, the name of the Xilinx shall not be used
+# in advertising or otherwise to promote the sale, use or other dealings in
+# this Software without prior written authorization from Xilinx.
+#
+###############################################################################
+
+COMPILER=
+ARCHIVER=
+CP=cp
+COMPILER_FLAGS=
+
+ifeq ($(notdir $(COMPILER)) , arm-xilinx-eabi-gcc)
+ EXTRA_ARCHIVE_FLAGS=rc
+else
+ifeq ($(notdir $(COMPILER)), aarch64-none-elf-gcc)
+ EXTRA_ARCHIVE_FLAGS=rc
+else
+ifeq ($(notdir $(COMPILER)), arm-none-eabi-gcc)
+ EXTRA_ARCHIVE_FLAGS=rc
+else
+ EXTRA_ARCHIVE_FLAGS=--create
+endif
+endif
+endif
+
+ifeq ($(COMPILER) , mb-gcc)
+ EXTRA_ARCHIVE_FLAGS=rc
+endif
+
+RELEASEDIR=../../../lib
+INCLUDEDIR=../../../include
+INCLUDES=-I./include/ -I${INCLUDEDIR}
+FATFS_DIR = .
+
+LIB_SRCS = $(FATFS_DIR)/ff.c \
+ $(FATFS_DIR)/diskio.c
+
+
+# create FATFS_SRCS based on configured options
+
+FATFS_SRCS = $(LIB_SRCS)
+
+FATFS_OBJS = $(FATFS_SRCS:%.c=%.o)
+
+
+EXPORT_INCLUDE_FILES = $(FATFS_DIR)/include/ff.h \
+ $(FATFS_DIR)/include/ffconf.h \
+ $(FATFS_DIR)/include/diskio.h \
+ $(FATFS_DIR)/include/integer.h
+
+
+libs: libxilffs.a
+ cp libxilffs.a $(RELEASEDIR)
+ make clean
+
+include:
+ @for i in $(EXPORT_INCLUDE_FILES); do \
+ ${CP} -r $$i ${INCLUDEDIR}; \
+ done
+
+clean:
+ rm -rf obj/ff.o obj/diskio.o
+ rmdir obj
+ rm libxilffs.a
+
+
+libxilffs.a: obj_dir print_msg_fatfs_base $(FATFS_OBJS)
+ @echo "Creating archive $@"
+ $(ARCHIVER) $(EXTRA_ARCHIVE_FLAGS) $@ obj/ff.o obj/diskio.o
+
+
+obj_dir:
+ mkdir obj
+
+print_msg_fatfs_base:
+ @echo "Compiling XilFFs Library"
+
+.c.o:
+ $(COMPILER) $(COMPILER_FLAGS) $(EXTRA_COMPILER_FLAGS) $(INCLUDES) -c $< -o obj/$(@F)
diff --git a/lib/sw_services/xilffs/src/diskio.c b/lib/sw_services/xilffs/src/diskio.c
new file mode 100644
index 00000000..43f67a89
--- /dev/null
+++ b/lib/sw_services/xilffs/src/diskio.c
@@ -0,0 +1,550 @@
+/******************************************************************************
+*
+* Copyright (C) 2013 - 2015 Xilinx, Inc. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* Use of the Software is limited solely to applications:
+* (a) running on a Xilinx device, or
+* (b) that interact with a Xilinx device through a bus or interconnect.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
+*
+******************************************************************************/
+/*****************************************************************************/
+/**
+*
+* @file diskio.c
+* This file is the glue layer between file system and
+* driver.
+* Description related to SD driver:
+* Process to use file system with SD
+* Select xilffs in SDK when creating a BSP
+* In SDK, set "fs_interface" to 1 to select SD interface.
+* This glue layer can currently be used only with one
+* SD controller enabled.
+* In order to use eMMC, in SDK set "Enable MMC" to 1. If not,
+* SD support is enabled by default.
+*
+* Description:
+* This glue layer initializes the host controller and SD card
+* in disk_initialize. If SD card supports it, 4-bit mode and
+* high speed mode will be enabled.
+* The default block size is 512 bytes.
+* disk_read and disk_write functions are used to read and
+* write files using ADMA2 in polled mode.
+* The file system can be used to read from and write to an
+* SD card that is already formatted as FATFS.
+*
+*
+* MODIFICATION HISTORY:
+*
+* Ver Who Date Changes
+* ----- ---- -------- -------------------------------------------------------
+* 1.00a hk 10/17/13 First release
+* 2.0 hk 02/12/14 Corrected status check in disk initialize. CR# 772072.
+* 2.1 hk 04/16/14 Move check for ExtCSD high speed bit set inside if
+* condition for high speed support.
+* Include xil_types.h irrespective of xsdps.h. CR# 797086.
+* 2.2 hk 07/28/14 Make changes to enable use of data cache.
+* 3.0 sk 12/04/14 Added support for micro SD without
+* WP/CD. CR# 810655.
+* Make changes for prototypes of disk_read and
+* disk_write according to latest version.
+* 12/15/14 Modified the code according to MISRAC 2012 Compliant.
+* Updated the FatFs to R0.10b
+* Removed alignment for local buffers as CacheInvalidate
+* will take care of it.
+*
+*
+*
+* @note
+*
+******************************************************************************/
+#include "diskio.h"
+#include "ff.h"
+#include "xparameters.h"
+#include "xil_types.h"
+
+#ifdef FILE_SYSTEM_INTERFACE_SD
+#include "xsdps.h" /* SD device driver */
+#endif
+
+#include "xil_printf.h"
+
+#define SD_DEVICE_ID XPAR_XSDPS_0_DEVICE_ID
+#define HIGH_SPEED_SUPPORT 0x01U
+#define WIDTH_4_BIT_SUPPORT 0x4U
+#define SD_CLK_25_MHZ 25000000U
+#define SD_CLK_26_MHZ 26000000U
+#define SD_CLK_52_MHZ 52000000U
+#define EXT_CSD_DEVICE_TYPE_BYTE 196
+#define EXT_CSD_4_BIT_WIDTH_BYTE 183
+#define EXT_CSD_HIGH_SPEED_BYTE 185
+#define EXT_CSD_DEVICE_TYPE_HIGH_SPEED 0x3
+
+/*--------------------------------------------------------------------------
+
+ Public Functions
+
+---------------------------------------------------------------------------*/
+
+/*
+ * Global variables
+ */
+static DSTATUS Stat; /* Disk status */
+
+#ifdef FILE_SYSTEM_INTERFACE_SD
+static XSdPs SdInstance;
+#endif
+
+#ifdef __ICCARM__
+#pragma data_alignment = 32
+static u8 ExtCsd[512];
+#pragma data_alignment = 4
+#else
+static u8 ExtCsd[512] __attribute__ ((aligned(32)));
+#endif
+
+/*-----------------------------------------------------------------------*/
+/* Get Disk Status */
+/*-----------------------------------------------------------------------*/
+
+/*****************************************************************************/
+/**
+*
+* Gets the status of the disk.
+* In case of SD, it checks whether card is present or not.
+*
+* @param pdrv - Drive number
+*
+* @return
+* 0 Status ok
+* STA_NOINIT Drive not initialized
+* STA_NODISK No medium in the drive
+* STA_PROTECT Write protected
+*
+* @note In case Card detect signal is not connected,
+* this function will not be able to check if card is present.
+*
+******************************************************************************/
+DSTATUS disk_status (
+ BYTE pdrv /* Drive number (0) */
+)
+{
+ DSTATUS s = Stat;
+ u32 StatusReg;
+
+#ifdef FILE_SYSTEM_INTERFACE_SD
+ StatusReg = XSdPs_GetPresentStatusReg((u32)XPAR_XSDPS_0_BASEADDR);
+#if XPAR_XSDPS_0_HAS_CD
+ if ((StatusReg & XSDPS_PSR_CARD_INSRT_MASK) == 0U) {
+ s = STA_NODISK | STA_NOINIT;
+ goto Label;
+ }
+#endif
+ s &= ~STA_NODISK;
+#if XPAR_XSDPS_0_HAS_WP
+ if ((StatusReg & XSDPS_PSR_WPS_PL_MASK) == 0U){
+ s |= STA_PROTECT;
+ goto Label;
+ }
+#endif
+ s &= ~STA_PROTECT;
+
+Label:
+ Stat = s;
+#endif
+ return s;
+}
+
+/*-----------------------------------------------------------------------*/
+/* Initialize Disk Drive */
+/*-----------------------------------------------------------------------*/
+/*****************************************************************************/
+/**
+*
+* Initializes the drive.
+* In case of SD, it initializes the host controller and the card.
+* This function also selects additional settings such as bus width,
+* speed and block size.
+*
+* @param pdrv - Drive number
+*
+* @return s - which contains an OR of the following information
+* STA_NODISK Disk is not present
+* STA_NOINIT Drive not initialized
+* STA_PROTECT Drive is write protected
+* 0 or only STA_PROTECT both indicate successful initialization.
+*
+* @note
+*
+******************************************************************************/
+DSTATUS disk_initialize (
+ BYTE pdrv /* Physical drive number (0) */
+)
+{
+ DSTATUS s;
+ s32 Status;
+ u8 SCR[8] = {0U};
+ u8 ReadBuff[64] = {0U};
+
+#ifdef FILE_SYSTEM_INTERFACE_SD
+
+ XSdPs_Config *SdConfig;
+
+ /*
+ * Check if card is in the socket
+ */
+ s = disk_status(pdrv);
+ if ((s & STA_NODISK) != 0U) {
+ return s;
+ }
+
+ /*
+ * Initialize the host controller
+ */
+ SdConfig = XSdPs_LookupConfig((u16)SD_DEVICE_ID);
+ if (NULL == SdConfig) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Stat = STA_NOINIT;
+ Status = XSdPs_CfgInitialize(&SdInstance, SdConfig,
+ SdConfig->BaseAddress);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+#ifndef MMC_CARD
+ Status = XSdPs_SdCardInitialize(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Change_ClkFreq(&SdInstance, SD_CLK_25_MHZ);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Select_Card(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Get_BusWidth(&SdInstance, SCR);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Get_BusSpeed(&SdInstance, ReadBuff);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ if((ReadBuff[13] & HIGH_SPEED_SUPPORT) != 0U){
+ Status = XSdPs_Change_BusSpeed(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+ }
+
+ Status = XSdPs_Pullup(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ if ((SCR[1] & WIDTH_4_BIT_SUPPORT) != 0U) {
+ Status = XSdPs_Change_BusWidth(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+ }
+
+ Status = XSdPs_SetBlkSize(&SdInstance, (u16)XSDPS_BLK_SIZE_512_MASK);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+#else
+ Status = XSdPs_MmcCardInitialize(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Change_ClkFreq(&SdInstance, SD_CLK_26_MHZ);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Select_Card(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Change_BusWidth(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Get_Mmc_ExtCsd(&SdInstance, ExtCsd);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ if(ExtCsd[EXT_CSD_4_BIT_WIDTH_BYTE] != 0x1) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ if(ExtCsd[EXT_CSD_DEVICE_TYPE_BYTE] & EXT_CSD_DEVICE_TYPE_HIGH_SPEED){
+ Status = XSdPs_Change_BusSpeed(&SdInstance);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ Status = XSdPs_Get_Mmc_ExtCsd(&SdInstance, ExtCsd);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+ if(ExtCsd[EXT_CSD_HIGH_SPEED_BYTE] != 0x1) {
+ s |= STA_NOINIT;
+ return s;
+ }
+ }
+
+ Status = XSdPs_SetBlkSize(&SdInstance, XSDPS_BLK_SIZE_512_MASK);
+ if (Status != XST_SUCCESS) {
+ s |= STA_NOINIT;
+ return s;
+ }
+
+#endif
+
+ /*
+ * Disk is initialized.
+ * Store the same in Stat.
+ */
+ s &= (~STA_NOINIT);
+
+ Stat = s;
+
+#endif
+
+ return s;
+}
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Sector(s) */
+/*-----------------------------------------------------------------------*/
+/*****************************************************************************/
+/**
+*
+* Reads the drive
+* In case of SD, it reads the SD card using ADMA2 in polled mode.
+*
+* @param pdrv - Drive number
+* @param *buff - Pointer to the data buffer to store read data
+* @param sector - Start sector number
+* @param count - Sector count
+*
+* @return
+* RES_OK Read successful
+* STA_NOINIT Drive not initialized
+* RES_ERROR Read not successful
+*
+* @note
+*
+******************************************************************************/
+DRESULT disk_read (
+ BYTE pdrv, /* Physical drive number (0) */
+ BYTE *buff, /* Pointer to the data buffer to store read data */
+ DWORD sector, /* Start sector number (LBA) */
+ UINT count /* Sector count (1..128) */
+)
+{
+#ifdef FILE_SYSTEM_INTERFACE_SD
+ DSTATUS s;
+ s32 Status;
+ DWORD LocSector = sector;
+
+ s = disk_status(pdrv);
+
+ if ((s & STA_NOINIT) != 0U) {
+ return RES_NOTRDY;
+ }
+ if (count == 0U) {
+ return RES_PARERR;
+ }
+
+ /* Convert LBA to byte address if needed */
+ if ((SdInstance.HCS) == 0U) {
+ LocSector *= (DWORD)XSDPS_BLK_SIZE_512_MASK;
+ }
+
+ Status = XSdPs_ReadPolled(&SdInstance, (u32)LocSector, count, buff);
+ if (Status != XST_SUCCESS) {
+ return RES_ERROR;
+ }
+
+#endif
+ return RES_OK;
+}
+
+/*-----------------------------------------------------------------------*/
+/* Miscellaneous Functions */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_ioctl (
+ BYTE pdrv, /* Physical drive number (0) */
+ BYTE cmd, /* Control code */
+ void *buff /* Buffer to send/receive control data */
+)
+{
+#ifdef FILE_SYSTEM_INTERFACE_SD
+ DRESULT res;
+ void *LocBuff = buff;
+ if ((disk_status(pdrv) & STA_NOINIT) != 0U) { /* Check if card is in the socket */
+ return RES_NOTRDY;
+ }
+
+ res = RES_ERROR;
+ switch (cmd) {
+ case (BYTE)CTRL_SYNC : /* Make sure that no pending write process */
+ res = RES_OK;
+ break;
+
+ case (BYTE)GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */
+ res = RES_ERROR;
+ break;
+
+ case (BYTE)GET_BLOCK_SIZE : /* Get erase block size in unit of sector (DWORD) */
+ (*((DWORD *)((void *)LocBuff))) = ((DWORD)128);
+ res = RES_OK;
+ break;
+
+ default:
+ res = RES_PARERR;
+ break;
+ }
+
+ return res;
+#else
+ return 0;
+#endif
+}
+
+/******************************************************************************/
+/**
+*
+* This function is User Provided Timer Function for FatFs module
+*
+* @param None
+*
+* @return DWORD
+*
+* @note None
+*
+****************************************************************************/
+
+DWORD get_fattime (void)
+{
+ return ((DWORD)(2010U - 1980U) << 25U) /* Fixed to Jan. 1, 2010 */
+ | ((DWORD)1 << 21)
+ | ((DWORD)1 << 16)
+ | ((DWORD)0 << 11)
+ | ((DWORD)0 << 5)
+ | ((DWORD)0 >> 1);
+}
+
+/*****************************************************************************/
+/**
+*
+* Reads the drive
+* In case of SD, it reads the SD card using ADMA2 in polled mode.
+*
+* @param pdrv - Drive number
+* @param *buff - Pointer to the data to be written
+* @param sector - Sector address
+* @param count - Sector count
+*
+* @return
+* RES_OK Read successful
+* STA_NOINIT Drive not initialized
+* RES_ERROR Read not successful
+*
+* @note
+*
+******************************************************************************/
+DRESULT disk_write (
+ BYTE pdrv, /* Physical drive nmuber (0..) */
+ const BYTE *buff, /* Data to be written */
+ DWORD sector, /* Sector address (LBA) */
+ UINT count /* Number of sectors to write (1..128) */
+)
+{
+ DSTATUS s;
+ s32 Status;
+ DWORD LocSector = sector;
+
+#ifdef FILE_SYSTEM_INTERFACE_SD
+ s = disk_status(pdrv);
+
+ if ((s & STA_NOINIT) != 0U) {
+ return RES_NOTRDY;
+ }
+ if (count == 0U) {
+ return RES_PARERR;
+ }
+
+ /* Convert LBA to byte address if needed */
+ if ((SdInstance.HCS) == 0U) {
+ LocSector *= (DWORD)XSDPS_BLK_SIZE_512_MASK;
+ }
+
+ Status = XSdPs_WritePolled(&SdInstance, (u32)LocSector, count, buff);
+ if (Status != XST_SUCCESS) {
+ return RES_ERROR;
+ }
+
+#endif
+ return RES_OK;
+}
diff --git a/lib/sw_services/xilffs/src/ff.c b/lib/sw_services/xilffs/src/ff.c
new file mode 100644
index 00000000..7862a67a
--- /dev/null
+++ b/lib/sw_services/xilffs/src/ff.c
@@ -0,0 +1,5226 @@
+/*----------------------------------------------------------------------------/
+/ FatFs - FAT file system module R0.10b (C)ChaN, 2014
+/-----------------------------------------------------------------------------/
+/ FatFs module is a generic FAT file system module for small embedded systems.
+/ This is a free software that opened for education, research and commercial
+/ developments under license policy of following terms.
+/
+/ Copyright (C) 2014, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/-----------------------------------------------------------------------------/
+/ Feb 26,'06 R0.00 Prototype.
+/
+/ Apr 29,'06 R0.01 First stable version.
+/
+/ Jun 01,'06 R0.02 Added FAT12 support.
+/ Removed unbuffered mode.
+/ Fixed a problem on small (<32M) partition.
+/ Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM).
+/
+/ Sep 22,'06 R0.03 Added f_rename().
+/ Changed option _FS_MINIMUM to _FS_MINIMIZE.
+/ Dec 11,'06 R0.03a Improved cluster scan algorithm to write files fast.
+/ Fixed f_mkdir() creates incorrect directory on FAT32.
+/
+/ Feb 04,'07 R0.04 Supported multiple drive system.
+/ Changed some interfaces for multiple drive system.
+/ Changed f_mountdrv() to f_mount().
+/ Added f_mkfs().
+/ Apr 01,'07 R0.04a Supported multiple partitions on a physical drive.
+/ Added a capability of extending file size to f_lseek().
+/ Added minimization level 3.
+/ Fixed an endian sensitive code in f_mkfs().
+/ May 05,'07 R0.04b Added a configuration option _USE_NTFLAG.
+/ Added FSINFO support.
+/ Fixed DBCS name can result FR_INVALID_NAME.
+/ Fixed short seek (<= csize) collapses the file object.
+/
+/ Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs().
+/ Fixed f_mkfs() on FAT32 creates incorrect FSINFO.
+/ Fixed f_mkdir() on FAT32 creates incorrect directory.
+/ Feb 03,'08 R0.05a Added f_truncate() and f_utime().
+/ Fixed off by one error at FAT sub-type determination.
+/ Fixed btr in f_read() can be mistruncated.
+/ Fixed cached sector is not flushed when create and close without write.
+/
+/ Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets().
+/ Improved performance of f_lseek() on moving to the same or following cluster.
+/
+/ Apr 01,'09 R0.07 Merged Tiny-FatFs as a configuration option. (_FS_TINY)
+/ Added long file name feature.
+/ Added multiple code page feature.
+/ Added re-entrancy for multitask operation.
+/ Added auto cluster size selection to f_mkfs().
+/ Added rewind option to f_readdir().
+/ Changed result code of critical errors.
+/ Renamed string functions to avoid name collision.
+/ Apr 14,'09 R0.07a Separated out OS dependent code on reentrant cfg.
+/ Added multiple sector size feature.
+/ Jun 21,'09 R0.07c Fixed f_unlink() can return FR_OK on error.
+/ Fixed wrong cache control in f_lseek().
+/ Added relative path feature.
+/ Added f_chdir() and f_chdrive().
+/ Added proper case conversion to extended character.
+/ Nov 03,'09 R0.07e Separated out configuration options from ff.h to ffconf.h.
+/ Fixed f_unlink() fails to remove a sub-directory on _FS_RPATH.
+/ Fixed name matching error on the 13 character boundary.
+/ Added a configuration option, _LFN_UNICODE.
+/ Changed f_readdir() to return the SFN with always upper case on non-LFN cfg.
+/
+/ May 15,'10 R0.08 Added a memory configuration option. (_USE_LFN = 3)
+/ Added file lock feature. (_FS_SHARE)
+/ Added fast seek feature. (_USE_FASTSEEK)
+/ Changed some types on the API, XCHAR->TCHAR.
+/ Changed .fname in the FILINFO structure on Unicode cfg.
+/ String functions support UTF-8 encoding files on Unicode cfg.
+/ Aug 16,'10 R0.08a Added f_getcwd().
+/ Added sector erase feature. (_USE_ERASE)
+/ Moved file lock semaphore table from fs object to the bss.
+/ Fixed a wrong directory entry is created on non-LFN cfg when the given name contains ';'.
+/ Fixed f_mkfs() creates wrong FAT32 volume.
+/ Jan 15,'11 R0.08b Fast seek feature is also applied to f_read() and f_write().
+/ f_lseek() reports required table size on creating CLMP.
+/ Extended format syntax of f_printf().
+/ Ignores duplicated directory separators in given path name.
+/
+/ Sep 06,'11 R0.09 f_mkfs() supports multiple partition to complete the multiple partition feature.
+/ Added f_fdisk().
+/ Aug 27,'12 R0.09a Changed f_open() and f_opendir() reject null object pointer to avoid crash.
+/ Changed option name _FS_SHARE to _FS_LOCK.
+/ Fixed assertion failure due to OS/2 EA on FAT12/16 volume.
+/ Jan 24,'13 R0.09b Added f_setlabel() and f_getlabel().
+/
+/ Oct 02,'13 R0.10 Added selection of character encoding on the file. (_STRF_ENCODE)
+/ Added f_closedir().
+/ Added forced full FAT scan for f_getfree(). (_FS_NOFSINFO)
+/ Added forced mount feature with changes of f_mount().
+/ Improved behavior of volume auto detection.
+/ Improved write throughput of f_puts() and f_printf().
+/ Changed argument of f_chdrive(), f_mkfs(), disk_read() and disk_write().
+/ Fixed f_write() can be truncated when the file size is close to 4GB.
+/ Fixed f_open(), f_mkdir() and f_setlabel() can return incorrect error code.
+/ Jan 15,'14 R0.10a Added arbitrary strings as drive number in the path name. (_STR_VOLUME_ID)
+/ Added a configuration option of minimum sector size. (_MIN_SS)
+/ 2nd argument of f_rename() can have a drive number and it will be ignored.
+/ Fixed f_mount() with forced mount fails when drive number is >= 1.
+/ Fixed f_close() invalidates the file object without volume lock.
+/ Fixed f_closedir() returns but the volume lock is left acquired.
+/ Fixed creation of an entry with LFN fails on too many SFN collisions.
+/ May 19,'14 R0.10b Fixed a hard error in the disk I/O layer can collapse the directory entry.
+/ Fixed LFN entry is not deleted on delete/rename an object with lossy converted SFN.
+/---------------------------------------------------------------------------*/
+#include "xparameters.h"
+#ifdef XPAR_XSDPS_0_DEVICE_ID
+#include "ff.h" /* FatFs configurations and declarations */
+#include "diskio.h" /* Declarations of low level disk I/O functions */
+#include "xil_printf.h"
+
+
+
+/*--------------------------------------------------------------------------
+
+ Module Private Definitions
+
+---------------------------------------------------------------------------*/
+
+#if FAT_FS != 8051 /* Revision ID */
+#error Wrong include file (ff.h).
+#endif
+
+
+/* Reentrancy related */
+#if _FS_REENTRANT
+#if _USE_LFN == 1
+#error Static LFN work area cannot be used at thread-safe configuration.
+#endif
+#define ENTER_FF(fs) { if (!lock_fs(fs)) return FR_TIMEOUT; }
+#define LEAVE_FF(fs, res) { unlock_fs((fs), (res)); return (res); }
+#else
+#define ENTER_FF(fs)
+#define LEAVE_FF(fs, res) return ((res))
+#endif
+
+#define ABORT(fs, res) { fp->err = (BYTE)(res); LEAVE_FF((fs), (res)); }
+
+
+/* Definitions of sector size */
+#if (_MAX_SS < _MIN_SS) || (_MAX_SS != 512 && _MAX_SS != 1024 && _MAX_SS != 2048 && _MAX_SS != 4096) || (_MIN_SS != 512 && _MIN_SS != 1024 && _MIN_SS != 2048 && _MIN_SS != 4096)
+#error Wrong sector size configuration.
+#endif
+#if _MAX_SS == _MIN_SS
+#define SS(fs) _MAX_SS /* Fixed sector size */
+#else
+#define SS(fs) ((fs)->ssize) /* Variable sector size */
+#endif
+
+
+/* File access control feature */
+#if _FS_LOCK
+#if _FS_READONLY
+#error _FS_LOCK must be 0 at read-only cfg.
+#endif
+typedef struct {
+ FATFS *fs; /* Object ID 1, volume (NULL:blank entry) */
+ DWORD clu; /* Object ID 2, directory (0:root) */
+ WORD idx; /* Object ID 3, directory index */
+ WORD ctr; /* Object open counter, 0:none, 0x01..0xFF:read mode open count, 0x100:write mode */
+} FILESEM;
+#endif
+
+
+
+/* DBCS code ranges and SBCS extend character conversion table */
+
+#if _CODE_PAGE == 932 /* Japanese Shift-JIS */
+#define DF1S 0x81U /* DBC 1st byte range 1 start */
+#define DF_1E 0x9FU /* DBC 1st byte range 1 end */
+#define DF_2S 0xE0U /* DBC 1st byte range 2 start */
+#define DF_2E 0xFCU /* DBC 1st byte range 2 end */
+#define DS_1S 0x40U /* DBC 2nd byte range 1 start */
+#define DS_1E 0x7EU /* DBC 2nd byte range 1 end */
+#define DS_2S 0x80U /* DBC 2nd byte range 2 start */
+#define DS_2E 0xFCU /* DBC 2nd byte range 2 end */
+
+#elif _CODE_PAGE == 936 /* Simplified Chinese GBK */
+#define DF1S 0x81U
+#define DF_1E 0xFEU
+#define DS_1S 0x40U
+#define DS_1E 0x7EU
+#define DS_2S 0x80U
+#define DS_2E 0xFEU
+
+#elif _CODE_PAGE == 949 /* Korean */
+#define DF1S 0x81U
+#define DF_1E 0xFEU
+#define DS_1S 0x41U
+#define DS_1E 0x5AU
+#define DS_2S 0x61U
+#define DS_2E 0x7AU
+#define _DS3S 0x81U
+#define _DS3E 0xFEU
+
+#elif _CODE_PAGE == 950 /* Traditional Chinese Big5 */
+#define DF1S 0x81U
+#define DF_1E 0xFEU
+#define DS_1S 0x40U
+#define DS_1E 0x7EU
+#define DS_2S 0xA1U
+#define DS_2E 0xFEU
+
+#elif _CODE_PAGE == 437 /* U.S. (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x90,0x41,0x8E,0x41,0x8F,0x80,0x45,0x45,0x45,0x49,0x49,0x49,0x8E,0x8F,0x90,0x92,0x92,0x4F,0x99,0x4F,0x55,0x55,0x59,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 720 /* Arabic (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x45,0x41,0x84,0x41,0x86,0x43,0x45,0x45,0x45,0x49,0x49,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x49,0x49,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 737 /* Greek (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x92,0x92,0x93,0x94,0x95,0x96,0x97,0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87, \
+ 0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0xAA,0x92,0x93,0x94,0x95,0x96,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0x97,0xEA,0xEB,0xEC,0xE4,0xED,0xEE,0xE7,0xE8,0xF1,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 775 /* Baltic (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x91,0xA0,0x8E,0x95,0x8F,0x80,0xAD,0xED,0x8A,0x8A,0xA1,0x8D,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0x95,0x96,0x97,0x97,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xE0,0xA3,0xA3,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xB5,0xB6,0xB7,0xB8,0xBD,0xBE,0xC6,0xC7,0xA5,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE3,0xE8,0xE8,0xEA,0xEA,0xEE,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 850 /* Multilingual Latin 1 (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+ 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 852 /* Latin 2 (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xDE,0x8F,0x80,0x9D,0xD3,0x8A,0x8A,0xD7,0x8D,0x8E,0x8F,0x90,0x91,0x91,0xE2,0x99,0x95,0x95,0x97,0x97,0x99,0x9A,0x9B,0x9B,0x9D,0x9E,0x9F, \
+ 0xB5,0xD6,0xE0,0xE9,0xA4,0xA4,0xA6,0xA6,0xA8,0xA8,0xAA,0x8D,0xAC,0xB8,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBD,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC6,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD2,0xD5,0xD6,0xD7,0xB7,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE3,0xD5,0xE6,0xE6,0xE8,0xE9,0xE8,0xEB,0xED,0xED,0xDD,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xEB,0xFC,0xFC,0xFE,0xFF}
+
+#elif _CODE_PAGE == 855 /* Cyrillic (OEM) */
+#define DF1S 0
+#define _EXCVT {0x81,0x81,0x83,0x83,0x85,0x85,0x87,0x87,0x89,0x89,0x8B,0x8B,0x8D,0x8D,0x8F,0x8F,0x91,0x91,0x93,0x93,0x95,0x95,0x97,0x97,0x99,0x99,0x9B,0x9B,0x9D,0x9D,0x9F,0x9F, \
+ 0xA1,0xA1,0xA3,0xA3,0xA5,0xA5,0xA7,0xA7,0xA9,0xA9,0xAB,0xAB,0xAD,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB6,0xB6,0xB8,0xB8,0xB9,0xBA,0xBB,0xBC,0xBE,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD3,0xD3,0xD5,0xD5,0xD7,0xD7,0xDD,0xD9,0xDA,0xDB,0xDC,0xDD,0xE0,0xDF, \
+ 0xE0,0xE2,0xE2,0xE4,0xE4,0xE6,0xE6,0xE8,0xE8,0xEA,0xEA,0xEC,0xEC,0xEE,0xEE,0xEF,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF8,0xFA,0xFA,0xFC,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 857 /* Turkish (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0x98,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x98,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9E, \
+ 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA6,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xDE,0x59,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 858 /* Multilingual Latin 1 + Euro (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x9A,0x90,0xB6,0x8E,0xB7,0x8F,0x80,0xD2,0xD3,0xD4,0xD8,0xD7,0xDE,0x8E,0x8F,0x90,0x92,0x92,0xE2,0x99,0xE3,0xEA,0xEB,0x59,0x99,0x9A,0x9D,0x9C,0x9D,0x9E,0x9F, \
+ 0xB5,0xD6,0xE0,0xE9,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC7,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD1,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE5,0xE5,0xE6,0xE7,0xE7,0xE9,0xEA,0xEB,0xED,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 862 /* Hebrew (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0x41,0x49,0x4F,0x55,0xA5,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0x21,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 866 /* Russian (OEM) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0x90,0x91,0x92,0x93,0x9d,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,0xF0,0xF0,0xF2,0xF2,0xF4,0xF4,0xF6,0xF6,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 874 /* Thai (OEM, Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1250 /* Central Europe (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xA3,0xB4,0xB5,0xB6,0xB7,0xB8,0xA5,0xAA,0xBB,0xBC,0xBD,0xBC,0xAF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
+
+#elif _CODE_PAGE == 1251 /* Cyrillic (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x82,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x80,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x8D,0x8E,0x8F, \
+ 0xA0,0xA2,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB2,0xA5,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xA3,0xBD,0xBD,0xAF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF}
+
+#elif _CODE_PAGE == 1252 /* Latin 1 (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0xAd,0x9B,0x8C,0x9D,0xAE,0x9F, \
+ 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
+
+#elif _CODE_PAGE == 1253 /* Greek (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xA2,0xB8,0xB9,0xBA, \
+ 0xE0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xFB,0xBC,0xFD,0xBF,0xFF}
+
+#elif _CODE_PAGE == 1254 /* Turkish (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x8A,0x9B,0x8C,0x9D,0x9E,0x9F, \
+ 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0x9F}
+
+#elif _CODE_PAGE == 1255 /* Hebrew (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1256 /* Arabic (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x8C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0x41,0xE1,0x41,0xE3,0xE4,0xE5,0xE6,0x43,0x45,0x45,0x45,0x45,0xEC,0xED,0x49,0x49,0xF0,0xF1,0xF2,0xF3,0x4F,0xF5,0xF6,0xF7,0xF8,0x55,0xFA,0x55,0x55,0xFD,0xFE,0xFF}
+
+#elif _CODE_PAGE == 1257 /* Baltic (Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F, \
+ 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xA8,0xB9,0xAA,0xBB,0xBC,0xBD,0xBE,0xAF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xFF}
+
+#elif _CODE_PAGE == 1258 /* Vietnam (OEM, Windows) */
+#define DF1S 0
+#define _EXCVT {0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9A,0x9B,0xAC,0x9D,0x9E,0x9F, \
+ 0xA0,0x21,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF, \
+ 0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xCA,0xCB,0xEC,0xCD,0xCE,0xCF,0xD0,0xD1,0xF2,0xD3,0xD4,0xD5,0xD6,0xF7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xFE,0x9F}
+
+#elif _CODE_PAGE == 1 /* ASCII (for only non-LFN cfg) */
+#if _USE_LFN
+#error Cannot use LFN feature without valid code page.
+#endif
+#define DF1S 0
+
+#else
+#error Unknown code page
+
+#endif
+
+
+/* Character code support macros */
+#define IsUpper(c) (((c)>=(BYTE)'A')&&((c)<=(BYTE)'Z'))
+#define IsLower(c) (((c)>=(BYTE)'a')&&((c)<=(BYTE)'z'))
+#define IsDigit(c) (((c)>=(BYTE)'0')&&((c)<=(BYTE)'9'))
+
+#if DF1S /* Code page is DBCS */
+
+#ifdef DF_2S /* Two 1st byte areas */
+#define IsDBCS1(c) ((((BYTE)(c) >= DF1S) && ((BYTE)(c) <= DF_1E)) || (((BYTE)(c) >= DF_2S) && ((BYTE)(c) <= DF_2E)))
+#else /* One 1st byte area */
+#define IsDBCS1(c) (((BYTE)(c) >= DF1S) && ((BYTE)(c) <= DF_1E))
+#endif
+
+#ifdef _DS3S /* Three 2nd byte areas */
+#define IsDBCS2(c) ((((BYTE)(c) >= DS_1S) && ((BYTE)(c) <= DS_1E)) || (((BYTE)(c) >= DS_2S) && ((BYTE)(c) <= DS_2E)) || (((BYTE)(c) >= _DS3S) && ((BYTE)(c) <= _DS3E)))
+#else /* Two 2nd byte areas */
+#define IsDBCS2(c) ((((BYTE)(c) >= DS_1S) && ((BYTE)(c) <= DS_1E)) || (((BYTE)(c) >= DS_2S) && ((BYTE)(c) <= DS_2E)))
+#endif
+
+#else /* Code page is SBCS */
+
+#define IsDBCS1(c) 0
+#define IsDBCS2(c) 0
+
+#endif /* DF1S */
+
+
+/* Name status flags */
+#define NS 11 /* Index of name status byte in fn[] */
+#define NS_LOSS 0x01U /* Out of 8.3 format */
+#define NS_LFN 0x02U /* Force to create LFN entry */
+#define NS_LAST 0x04U /* Last segment */
+#define NS_BODY 0x08U /* Lower case flag (body) */
+#define NS_EXT 0x10U /* Lower case flag (ext) */
+#define NS_DOT 0x20U /* Dot entry */
+
+
+/* FAT sub-type boundaries */
+#define MIN_FAT16 4086U /* Minimum number of clusters for FAT16 */
+#define MIN_FAT32 65526U /* Minimum number of clusters for FAT32 */
+
+
+/* FatFs refers the members in the FAT structures as byte array instead of
+/ structure member because the structure is not binary compatible between
+/ different platforms */
+
+#define BS_jmpBoot 0U /* Jump instruction (3) */
+#define BS_OEMName 3U /* OEM name (8) */
+#define BPB_BytsPerSec 11U /* Sector size [byte] (2) */
+#define BPB_SecPerClus 13U /* Cluster size [sector] (1) */
+#define BPB_RsvdSecCnt 14U /* Size of reserved area [sector] (2) */
+#define BPB_NumFATs 16U /* Number of FAT copies (1) */
+#define BPB_RootEntCnt 17U /* Number of root directory entries for FAT12/16 (2) */
+#define BPB_TotSec16 19U /* Volume size [sector] (2) */
+#define BPB_Media 21U /* Media descriptor (1) */
+#define BPB_FATSz16 22U /* FAT size [sector] (2) */
+#define BPB_SecPerTrk 24U /* Track size [sector] (2) */
+#define BPB_NumHeads 26U /* Number of heads (2) */
+#define BPB_HiddSec 28U /* Number of special hidden sectors (4) */
+#define BPB_TotSec32 32U /* Volume size [sector] (4) */
+#define BS_DrvNum 36U /* Physical drive number (2) */
+#define BS_BootSig 38U /* Extended boot signature (1) */
+#define BS_VolID 39U /* Volume serial number (4) */
+#define BS_VolLab 43U /* Volume label (8) */
+#define BS_FilSysType 54U /* File system type (1) */
+#define BPB_FATSz32 36U /* FAT size [sector] (4) */
+#define BPB_ExtFlags 40U /* Extended flags (2) */
+#define BPB_FSVer 42U /* File system version (2) */
+#define BPB_RootClus 44U /* Root directory first cluster (4) */
+#define BPB_FSInfo 48U /* Offset of FSINFO sector (2) */
+#define BPB_BkBootSec 50U /* Offset of backup boot sector (2) */
+#define BS_DrvNum32 64U /* Physical drive number (2) */
+#define BS_BootSig32 66U /* Extended boot signature (1) */
+#define BS_VolID32 67U /* Volume serial number (4) */
+#define BS_VolLab32 71U /* Volume label (8) */
+#define BS_FilSysType32 82U /* File system type (1) */
+#define FSI_LeadSig 0U /* FSI: Leading signature (4) */
+#define FSI_StrucSig 484U /* FSI: Structure signature (4) */
+#define FSI_Free_Count 488U /* FSI: Number of free clusters (4) */
+#define FSI_Nxt_Free 492U /* FSI: Last allocated cluster (4) */
+#define MBR_Table 446U /* MBR: Partition table offset (2) */
+#define SZ_PTE 16U /* MBR: Size of a partition table entry */
+#define BS_55AA 510U /* Signature word (2) */
+
+#define DIR_Name 0U /* Short file name (11) */
+#define DIR_Attr 11U /* Attribute (1) */
+#define DIR_NTres 12U /* NT flag (1) */
+#define DIR_CrtTimeTenth 13U /* Created time sub-second (1) */
+#define DIR_CrtTime 14U /* Created time (2) */
+#define DIR_CrtDate 16U /* Created date (2) */
+#define DIR_LstAccDate 18U /* Last accessed date (2) */
+#define DIR_FstClusHI 20U /* Higher 16-bit of first cluster (2) */
+#define DIR_WrtTime 22U /* Modified time (2) */
+#define DIR_WrtDate 24U /* Modified date (2) */
+#define DIR_FstClusLO 26U /* Lower 16-bit of first cluster (2) */
+#define DIR_FileSize 28U /* File size (4) */
+#define LDIR_Ord 0U /* LFN entry order and LLE flag (1) */
+#define LDIR_Attr 11U /* LFN attribute (1) */
+#define LDIR_Type 12U /* LFN type (1) */
+#define LDIR_Chksum 13U /* Sum of corresponding SFN entry */
+#define LDIR_FstClusLO 26U /* Filled by zero (0) */
+#define SZ_DIR 32U /* Size of a directory entry */
+#define LLE 0x40U /* Last long entry flag in LDIR_Ord */
+#define DDE 0xE5U /* Deleted directory entry mark in DIR_Name[0] */
+#define NDDE 0x05U /* Replacement of the character collides with DDE */
+
+
+
+
+/*------------------------------------------------------------*/
+/* Module private work area */
+/*------------------------------------------------------------*/
+/* Note that uninitialized variables with static duration are
+/ guaranteed zero/null as initial value. If not, either the
+/ linker or start-up routine is out of ANSI-C standard.
+*/
+
+#if _VOLUMES >= 1 || _VOLUMES <= 10
+static
+FATFS *FatFs[_VOLUMES]; /* Pointer to the file system objects (logical drives) */
+#else
+#error Number of volumes must be 1 to 10.
+#endif
+
+#if _FS_RPATH && _VOLUMES >= 2
+static
+BYTE CurrVol; /* Current drive */
+#endif
+
+#if _FS_LOCK
+static
+FILESEM Files[_FS_LOCK]; /* Open object lock semaphores */
+#endif
+
+#if _USE_LFN == 0 /* No LFN feature */
+#define DEF_NAMEBUF BYTE sfn[12]
+#define INIT_BUF(dobj) (dobj).fn = sfn
+#define FREE_BUF()
+
+#elif _USE_LFN == 1 /* LFN feature with static working buffer */
+static
+WCHAR LfnBuf[_MAX_LFN+1];
+#define DEF_NAMEBUF BYTE sfn[12]
+#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = LfnBuf; }
+#define FREE_BUF()
+
+#elif _USE_LFN == 2 /* LFN feature with dynamic working buffer on the stack */
+#define DEF_NAMEBUF BYTE sfn[12]; WCHAR lbuf[_MAX_LFN+1]
+#define INIT_BUF(dobj) { (dobj).fn = sfn; (dobj).lfn = lbuf; }
+#define FREE_BUF()
+
+#elif _USE_LFN == 3 /* LFN feature with dynamic working buffer on the heap */
+#define DEF_NAMEBUF BYTE sfn[12]; WCHAR *lfn
+#define INIT_BUF(dobj) { lfn = ff_memalloc((_MAX_LFN + 1) * 2); \
+ if (!lfn) LEAVE_FF((dobj).fs, FR_NOT_ENOUGH_CORE); \
+ (dobj).lfn = lfn; (dobj).fn = sfn; }
+#define FREE_BUF() ff_memfree(lfn)
+
+#else
+#error Wrong LFN configuration.
+#endif
+
+
+#ifdef _EXCVT
+static
+const BYTE ExCvt[] = _EXCVT; /* Upper conversion table for extended characters */
+#endif
+
+
+
+
+
+
+/*--------------------------------------------------------------------------
+
+ Module Private Functions
+
+---------------------------------------------------------------------------*/
+
+
+/*-----------------------------------------------------------------------*/
+/* String functions */
+/*-----------------------------------------------------------------------*/
+
+/* Copy memory to memory */
+static
+void mem_cpy (void* dst, const void* src, UINT cnt) {
+ BYTE *d = (BYTE*)(void *)dst;
+ const BYTE *s = src;
+
+#if _WORD_ACCESS == 1
+ while (cnt >= sizeof (int)) {
+ *(int*)d = *(int*)s;
+ d += sizeof (int); s += sizeof (int);
+ cnt -= sizeof (int);
+ }
+#endif
+ while ((cnt) > 0U){
+ *d=*s;
+ d+=1U;
+ s+=1U;
+ cnt-=1U;
+ }
+}
+
+/* Fill memory */
+static
+void mem_set (void* dst, s32 val, UINT cnt) {
+ BYTE *d = (BYTE*)(void *)dst;
+
+ while ((cnt) > 0U){
+ *d = (BYTE)val;
+ d+=1U;
+ cnt-=1U;
+ }
+}
+
+/* Compare memory to memory */
+static
+s32 mem_cmp (const void* dst, const void* src, UINT cnt) {
+ const BYTE *d = dst, *s = src;
+ s32 r = (s32)0;
+ UINT LocCnt = cnt;
+ while (((LocCnt) != 0U) && ((r = (s32)(*d - *s)) == 0)) {
+ d+=1U;
+ s+=1U;
+ LocCnt-=1U;
+ }
+ return r;
+}
+
+/* Check if chr is contained in the string */
+static
+s32 chk_chr (const char* str, s32 chr) {
+ char Status;
+ const char *LocStr = str;
+ while (((*LocStr) != (char)0) && ((*LocStr != chr) != 0U)){
+ LocStr+=1;
+ }
+ Status = *LocStr;
+ return (s32)Status;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Request/Release grant to access the volume */
+/*-----------------------------------------------------------------------*/
+#if _FS_REENTRANT
+static
+s32 lock_fs (
+ FATFS* fs /* File system object */
+)
+{
+ return ff_req_grant(fs->sobj);
+}
+
+
+static
+void unlock_fs (
+ FATFS* fs, /* File system object */
+ FRESULT res /* Result code to be returned */
+)
+{
+ if (fs &&
+ res != FR_NOT_ENABLED &&
+ res != FR_INVALID_DRIVE &&
+ res != FR_INVALID_OBJECT &&
+ res != FR_TIMEOUT) {
+ ff_rel_grant(fs->sobj);
+ }
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* File lock control functions */
+/*-----------------------------------------------------------------------*/
+#if _FS_LOCK
+
+static
+FRESULT chk_lock ( /* Check if the file can be accessed */
+ DIR* dp, /* Directory object pointing the file to be checked */
+ s32 acc /* Desired access type (0:Read, 1:Write, 2:Delete/Rename) */
+)
+{
+ UINT i, be;
+
+ /* Search file semaphore table */
+ for (i = be = 0; i < _FS_LOCK; i++) {
+ if (Files[i].fs) { /* Existing entry */
+ if (Files[i].fs == dp->fs && /* Check if the object matched with an open object */
+ Files[i].clu == dp->sclust &&
+ Files[i].idx == dp->index) break;
+ } else { /* Blank entry */
+ be = 1;
+ }
+ }
+ if (i == _FS_LOCK) /* The object is not opened */
+ return (be || acc == 2) ? FR_OK : FR_TOO_MANY_OPEN_FILES; /* Is there a blank entry for new object? */
+
+ /* The object has been opened. Reject any open against writing file and all write mode open */
+ return (acc || Files[i].ctr == 0x100) ? FR_LOCKED : FR_OK;
+}
+
+
+static
+s32 enq_lock (void) /* Check if an entry is available for a new object */
+{
+ UINT i;
+
+ for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
+ return (i == _FS_LOCK) ? 0 : 1;
+}
+
+
+static
+UINT inc_lock ( /* Increment object open counter and returns its index (0:Internal error) */
+ DIR* dp, /* Directory object pointing the file to register or increment */
+ s32 acc /* Desired access (0:Read, 1:Write, 2:Delete/Rename) */
+)
+{
+ UINT i;
+
+
+ for (i = 0; i < _FS_LOCK; i++) { /* Find the object */
+ if (Files[i].fs == dp->fs &&
+ Files[i].clu == dp->sclust &&
+ Files[i].idx == dp->index) break;
+ }
+
+ if (i == _FS_LOCK) { /* Not opened. Register it as new. */
+ for (i = 0; i < _FS_LOCK && Files[i].fs; i++) ;
+ if (i == _FS_LOCK) return 0; /* No free entry to register (int err) */
+ Files[i].fs = dp->fs;
+ Files[i].clu = dp->sclust;
+ Files[i].idx = dp->index;
+ Files[i].ctr = 0;
+ }
+
+ if (acc && Files[i].ctr) return 0; /* Access violation (int err) */
+
+ Files[i].ctr = acc ? 0x100 : Files[i].ctr + 1; /* Set semaphore value */
+
+ return i + 1;
+}
+
+
+static
+FRESULT dec_lock ( /* Decrement object open counter */
+ UINT i /* Semaphore index (1..) */
+)
+{
+ WORD n;
+ FRESULT res;
+
+
+ if (--i < _FS_LOCK) { /* Shift index number origin from 0 */
+ n = Files[i].ctr;
+ if (n == 0x100) n = 0; /* If write mode open, delete the entry */
+ if (n) n--; /* Decrement read mode open count */
+ Files[i].ctr = n;
+ if (!n) Files[i].fs = 0; /* Delete the entry if open count gets zero */
+ res = FR_OK;
+ } else {
+ res = FR_INT_ERR; /* Invalid index nunber */
+ }
+ return res;
+}
+
+
+static
+void clear_lock ( /* Clear lock entries of the volume */
+ FATFS *fs
+)
+{
+ UINT i;
+
+ for (i = 0; i < _FS_LOCK; i++) {
+ if (Files[i].fs == fs) Files[i].fs = 0;
+ }
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Move/Flush disk access window in the file system object */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT sync_window (
+ FATFS* fs /* File system object */
+)
+{
+ DWORD wsect;
+ UINT nf;
+
+ if (fs->wflag != 0U) { /* Write back the sector if it is dirty */
+ wsect = fs->winsect; /* Current sector number */
+ if (disk_write(fs->drv, fs->win, wsect, 1U) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ fs->wflag = 0U;
+ if ((wsect - fs->fatbase) < fs->fsize) { /* Is it in the FAT area? */
+ nf = (UINT)fs->n_fats;
+ for (; nf >= 2U; nf--) { /* Reflect the change to all FAT copies */
+ wsect += fs->fsize;
+ (void)disk_write(fs->drv, fs->win, wsect, 1U);
+ }
+ }
+ }
+ return FR_OK;
+}
+#endif
+
+
+static
+FRESULT move_window (
+ FATFS* fs, /* File system object */
+ DWORD sector /* Sector number to make appearance in the fs->win[] */
+)
+{
+ if (sector != fs->winsect) { /* Changed current window */
+#if !_FS_READONLY
+ if (sync_window(fs) != FR_OK) {
+ return FR_DISK_ERR;
+ }
+#endif
+ if (disk_read(fs->drv, fs->win, sector, 1U) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ fs->winsect = sector;
+ }
+
+ return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Synchronize file system and strage device */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT sync_fs ( /* FR_OK: successful, FR_DISK_ERR: failed */
+ FATFS* fs /* File system object */
+)
+{
+ FRESULT res;
+
+ BYTE *lp;
+ res = sync_window(fs);
+ if (res == FR_OK) {
+ /* Update FSINFO sector if needed */
+ if (((fs->fs_type == FS_FAT32) != 0U) && ((fs->fsi_flag == 1U) != 0U)) {
+ /* Create FSINFO structure */
+ mem_set(fs->win, 0, SS(fs));
+ lp = fs->win+BS_55AA;
+ ST_WORD(lp, 0xAA55U);
+ lp = fs->win+FSI_LeadSig;
+ ST_DWORD(lp, 0x41615252);
+ lp = fs->win+FSI_StrucSig;
+ ST_DWORD(lp, 0x61417272);
+ lp = fs->win+FSI_Free_Count;
+ ST_DWORD(lp, fs->free_clust);
+ lp = fs->win+FSI_Nxt_Free;
+ ST_DWORD(lp, fs->last_clust);
+ /* Write it into the FSINFO sector */
+ fs->winsect = fs->volbase + 1U;
+ (void)disk_write(fs->drv, fs->win, fs->winsect, 1U);
+ fs->fsi_flag = 0U;
+ }
+ /* Make sure that no pending write process in the physical drive */
+ if (disk_ioctl(fs->drv, CTRL_SYNC, (void*)NULL) != RES_OK) {
+ res = FR_DISK_ERR;
+ }
+ }
+
+ return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get sector# from cluster# */
+/*-----------------------------------------------------------------------*/
+
+
+DWORD clust2sect ( /* !=0: Sector number, 0: Failed - invalid cluster# */
+ FATFS* fs, /* File system object */
+ DWORD clst /* Cluster# to be converted */
+)
+{
+ DWORD LocalCluster = clst;
+ DWORD res;
+ LocalCluster -= 2U;
+ if (LocalCluster >= (fs->n_fatent - 2)){
+ res = ((DWORD)0U); /* Invalid cluster# */
+ }
+ else {
+ res = ((LocalCluster * fs->csize) + fs->database);
+ }
+
+ return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT access - Read value of a FAT entry */
+/*-----------------------------------------------------------------------*/
+
+
+DWORD get_fat ( /* 0xFFFFFFFF:Disk error, 1:Internal error, Else:Cluster status */
+ FATFS* fs, /* File system object */
+ DWORD clst /* Cluster# to get the link information */
+)
+{
+ UINT wc, bc;
+ BYTE *p,temp;
+ DWORD Status = 0xFFFFFFFFU;
+
+
+ if (((clst < 2U) != 0U) || ((clst >= fs->n_fatent) != 0U)){ /* Chack range */
+ Status = (DWORD)1;
+ }
+ else{
+ switch (fs->fs_type) {
+ case FS_FAT12 :
+ bc = (UINT)clst; bc += bc / 2;
+ if (move_window(fs, fs->fatbase + ((DWORD)bc / (DWORD)SS(fs))) > 0){
+ break;
+ }
+ wc = (UINT)fs->win[bc % (UINT)SS(fs)]; bc++;
+ if (move_window(fs, fs->fatbase + ((DWORD)bc / (DWORD)SS(fs))) > 0){
+ break;
+ }
+ temp = fs->win[bc % (UINT)SS(fs)] << 4;
+ temp = temp << 4;
+ wc |= temp;
+ Status = (DWORD)(((clst & (DWORD)1) == (DWORD)(1U)) ? (DWORD)((DWORD)wc >> 4) : (DWORD)((DWORD)wc & (DWORD)0xFFFU));
+ break;
+
+ case FS_FAT16 :
+ if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 2))) > 0){
+ break;
+ }
+ p = &fs->win[(clst * 2) % SS(fs)];
+ Status = (DWORD)LD_WORD(p);
+ break;
+
+ case FS_FAT32 :
+ if (move_window(fs, fs->fatbase + (clst / (SS(fs) / 4))) > 0){
+ break;
+ }
+ p = &fs->win[(clst * 4) % SS(fs)];
+ Status = (LD_DWORD(p) & (DWORD)0x0FFFFFFFU);
+ break;
+ default :
+ /* This is added for Misrac Compliance */
+ break;
+ }
+ }
+ return Status; /* An error occurred at the disk I/O layer */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT access - Change value of a FAT entry */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+
+FRESULT put_fat (
+ FATFS* fs, /* File system object */
+ DWORD clst, /* Cluster# to be changed in range of 2 to fs->n_fatent - 1 */
+ DWORD val /* New value to mark the cluster */
+)
+{
+ UINT bc;
+ BYTE *p;
+ FRESULT res;
+ DWORD LocVal = val;
+
+ if (((clst < 2U) != 0U) || ((clst >= fs->n_fatent) != 0U)) { /* Check range */
+ res = FR_INT_ERR;
+
+ } else {
+ switch (fs->fs_type) {
+ case FS_FAT12 :
+ bc = (UINT)clst; bc += bc / 2;
+ res = move_window(fs, fs->fatbase + ((DWORD)bc / (DWORD)SS(fs)));
+ if (res != FR_OK){
+ break;
+ }
+ p = &fs->win[bc % SS(fs)];
+ *p = (((clst & 1U) == 1U) ? ((*p & 0x0FU) | ((BYTE)LocVal << 4)) : (BYTE)LocVal);
+ bc++;
+ fs->wflag = 1U;
+ res = move_window(fs, fs->fatbase + ((DWORD)bc / (DWORD)SS(fs)));
+ if (res != FR_OK){
+ break;
+ }
+ p = &fs->win[bc % SS(fs)];
+ *p = (((clst & 1U) == 1U) ? (BYTE)(LocVal >> 4) : ((*p & 0xF0U) | ((BYTE)(LocVal >> 8) & 0x0FU)));
+ break;
+
+ case FS_FAT16 :
+ res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 2)));
+ if (res != FR_OK){
+ break;
+ }
+ p = &fs->win[(clst * 2) % SS(fs)];
+ ST_WORD(p, (WORD)LocVal);
+ break;
+
+ case FS_FAT32 :
+ res = move_window(fs, fs->fatbase + (clst / (SS(fs) / 4)));
+ if (res != FR_OK){
+ break;
+ }
+ p = &fs->win[(clst * 4) % SS(fs)];
+ LocVal |= LD_DWORD(p) & 0xF0000000U;
+ ST_DWORD(p, LocVal);
+ break;
+
+ default :
+ res = FR_INT_ERR;
+ break;
+ }
+ fs->wflag = 1U;
+ }
+
+ return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Remove a cluster chain */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT remove_chain (
+ FATFS* fs, /* File system object */
+ DWORD clst /* Cluster# to remove a chain from */
+)
+{
+ FRESULT res;
+ DWORD nxt;
+ DWORD LocClst = clst;
+#if _USE_ERASE
+ DWORD scl = LocClst, ecl = LocClst, rt[2];
+#endif
+
+ if (((LocClst < 2U) != 0U) || ((LocClst >= fs->n_fatent) != 0U)) { /* Check range */
+ res = FR_INT_ERR;
+
+ } else {
+ res = FR_OK;
+ while (LocClst < fs->n_fatent) { /* Not a last link? */
+ nxt = get_fat(fs, LocClst); /* Get cluster status */
+ if (nxt == 0U) {
+ break; /* Empty cluster? */
+ }
+ if (nxt == 1U) { res = FR_INT_ERR; break; } /* Internal error? */
+ if (nxt == 0xFFFFFFFFU) { res = FR_DISK_ERR; break; } /* Disk error? */
+ res = put_fat(fs, LocClst, 0U); /* Mark the cluster "empty" */
+ if (res != FR_OK) {
+ break;
+ }
+ if (fs->free_clust != 0xFFFFFFFFU) { /* Update FSInfo */
+ fs->free_clust++;
+ fs->fsi_flag |= 1U;
+ }
+#if _USE_ERASE
+ if (ecl + 1 == nxt) { /* Is next cluster contiguous? */
+ ecl = nxt;
+ } else { /* End of contiguous clusters */
+ rt[0] = clust2sect(fs, scl); /* Start sector */
+ rt[1] = clust2sect(fs, ecl) + fs->csize - 1; /* End sector */
+ disk_ioctl(fs->drv, CTRL_ERASE_SECTOR, rt); /* Erase the block */
+ scl = ecl = nxt;
+ }
+#endif
+ LocClst = nxt; /* Next cluster */
+ }
+ }
+
+ return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Stretch or Create a cluster chain */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+DWORD create_chain ( /* 0:No free cluster, 1:Internal error, 0xFFFFFFFF:Disk error, >=2:New cluster# */
+ FATFS* fs, /* File system object */
+ DWORD clst /* Cluster# to stretch. 0 means create a new chain. */
+)
+{
+ DWORD cs, ncl, scl;
+ FRESULT res;
+
+
+ if (clst == 0U) { /* Create a new chain */
+ scl = fs->last_clust; /* Get suggested start point */
+ if (((!scl) != 0U) || ((scl >= fs->n_fatent) != 0U)){
+ scl = 1U;
+ }
+ }
+ else { /* Stretch the current chain */
+ cs = get_fat(fs, clst); /* Check the cluster status */
+ if (cs < 2U) {
+ return (DWORD)1; /* Invalid value */
+ }
+ if (cs == (DWORD)0xFFFFFFFFU) {
+ return cs; /* A disk error occurred */
+ }
+ if (cs < fs->n_fatent) {
+ return cs; /* It is already followed by next cluster */
+ }
+ scl = clst;
+ }
+
+ ncl = scl; /* Start cluster */
+ for (;;) {
+ ncl++; /* Next cluster */
+ if (ncl >= fs->n_fatent) { /* Wrap around */
+ ncl = 2U;
+ if (ncl > scl) {
+ return 0; /* No free cluster */
+ }
+ }
+ cs = get_fat(fs, ncl); /* Get the cluster status */
+ if (cs == 0U) {
+ break; /* Found a free cluster */
+ }
+ if ((cs == 0xFFFFFFFFU) || (cs == 1U)) {/* An error occurred */
+ return cs;
+ }
+ if (ncl == scl) {
+ return 0; /* No free cluster */
+ }
+ }
+
+ res = put_fat(fs, ncl, 0x0FFFFFFFU); /* Mark the new cluster "last link" */
+ if ((res == FR_OK) && (clst != 0U)) {
+ res = put_fat(fs, clst, ncl); /* Link it to the previous one if needed */
+ }
+ if (res == FR_OK) {
+ fs->last_clust = ncl; /* Update FSINFO */
+ if (fs->free_clust != 0xFFFFFFFFU) {
+ fs->free_clust--;
+ fs->fsi_flag |= 1U;
+ }
+ } else {
+ ncl = (res == FR_DISK_ERR) ? 0xFFFFFFFFU : 1U;
+ }
+
+ return ncl; /* Return new cluster number or error code */
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* FAT handling - Convert offset into cluster with link map table */
+/*-----------------------------------------------------------------------*/
+
+#if _USE_FASTSEEK
+static
+DWORD clmt_clust ( /* <2:Error, >=2:Cluster number */
+ FIL* fp, /* Pointer to the file object */
+ DWORD ofs /* File offset to be converted to cluster# */
+)
+{
+ DWORD cl, ncl, *tbl;
+
+
+ tbl = fp->cltbl + 1; /* Top of CLMT */
+ cl = ofs / SS(fp->fs) / fp->fs->csize; /* Cluster order from top of the file */
+ for (;;) {
+ ncl = *tbl++; /* Number of cluters in the fragment */
+ if (ncl == ((DWORD)0U)) {
+ return 0; /* End of table? (error) */
+ }
+ if (cl < ncl) {
+ break; /* In this fragment? */
+ }
+ cl -= ncl; tbl++; /* Next fragment */
+ }
+ return cl + *tbl; /* Return the cluster number */
+}
+#endif /* _USE_FASTSEEK */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Set directory index */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_sdi (
+ DIR* dp, /* Pointer to directory object */
+ UINT idx /* Index of directory table */
+)
+{
+ WORD LocalDirectory = (WORD)idx;
+ DWORD clst, sect;
+ UINT ic;
+
+
+ dp->index = (WORD)LocalDirectory; /* Current index */
+ clst = dp->sclust; /* Table start cluster (0:root) */
+ if (((clst == 1U) !=0) || ((clst >= dp->fs->n_fatent) !=0)) { /* Check start cluster range */
+ return FR_INT_ERR;
+ }
+ if ((clst == ((DWORD)0U)) && ((dp->fs->fs_type == FS_FAT32) != 0U)) { /* Replace cluster# 0 with root cluster# if in FAT32 */
+ clst = dp->fs->dirbase;
+ }
+
+ if (clst == 0U) { /* Static table (root-directory in FAT12/16) */
+ if (LocalDirectory >= dp->fs->n_rootdir) { /* Is index out of range? */
+ return FR_INT_ERR;
+ }
+ sect = dp->fs->dirbase;
+ }
+ else { /* Dynamic table (root-directory in FAT32 or sub-directory) */
+ ic = (UINT)((UINT)(SS(dp->fs) / SZ_DIR) * (UINT)dp->fs->csize); /* Entries per cluster */
+ while (LocalDirectory >= ic) { /* Follow cluster chain */
+ clst = get_fat(dp->fs, clst); /* Get next cluster */
+ if (clst == 0xFFFFFFFFU) {
+ return FR_DISK_ERR; /* Disk error */
+ }
+ if (((clst < 2U) != 0U) || ((clst >= dp->fs->n_fatent) != 0U)) { /* Reached to end of table or internal error */
+ return FR_INT_ERR;
+ }
+ LocalDirectory -= (WORD)ic;
+ }
+ sect = clust2sect(dp->fs, clst);
+ }
+ dp->clust = clst; /* Current cluster# */
+ if (sect == ((DWORD)0U)) {return FR_INT_ERR;}
+ dp->sect = sect + ((DWORD)idx / ((DWORD)SS(dp->fs) / (DWORD)SZ_DIR)); /* Sector# of the directory entry */
+ dp->dir = dp->fs->win + ((idx % (SS(dp->fs) / SZ_DIR)) * SZ_DIR); /* Ptr to the entry in the sector */
+
+ return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Move directory table index next */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_next ( /* FR_OK:Succeeded, FR_NO_FILE:End of table, FR_DENIED:Could not stretch */
+ DIR* dp, /* Pointer to the directory object */
+ s32 stretch /* 0: Do not stretch table, 1: Stretch table if needed */
+)
+{
+ DWORD clst;
+ UINT i;
+
+
+ i = ((UINT)dp->index + (UINT)1U);
+ if (((!(i & 0xFFFFU)) != 0U) || ((!dp->sect) != 0U)) { /* Report EOT when index has reached 65535 */
+ return FR_NO_FILE;
+ }
+
+ if ((!(i % (SS(dp->fs) / SZ_DIR))) != 0U) { /* Sector changed? */
+ dp->sect++; /* Next sector */
+
+ if ((!dp->clust) != 0U) { /* Static table */
+ if (i >= dp->fs->n_rootdir) { /* Report EOT if it reached end of static table */
+ return FR_NO_FILE;
+ }
+ }
+ else { /* Dynamic table */
+ if (((i / (SS(dp->fs) / SZ_DIR)) & (dp->fs->csize - 1U)) == 0U) { /* Cluster changed? */
+ clst = get_fat(dp->fs, dp->clust); /* Get next cluster */
+ if (clst <= 1U) {
+ return FR_INT_ERR;
+ }
+ if (clst == 0xFFFFFFFFU) {
+ return FR_DISK_ERR;
+ }
+ if (clst >= dp->fs->n_fatent) { /* If it reached end of dynamic table, */
+#if !_FS_READONLY
+ UINT c;
+ if (stretch == ((s32)0)) {
+ return FR_NO_FILE; /* If do not stretch, report EOT */
+ }
+ clst = create_chain(dp->fs, dp->clust); /* Stretch cluster chain */
+ if (clst == 0U) {
+ return FR_DENIED; /* No free cluster */
+ }
+ if (clst == 1U) {
+ return FR_INT_ERR;
+ }
+ if (clst == 0xFFFFFFFFU) {
+ return FR_DISK_ERR;
+ }
+ /* Clean-up stretched table */
+ if ((sync_window(dp->fs)) != 0U) {
+ return FR_DISK_ERR;/* Flush disk access window */
+ }
+ mem_set(dp->fs->win, 0, SS(dp->fs)); /* Clear window buffer */
+ dp->fs->winsect = clust2sect(dp->fs, clst); /* Cluster start sector */
+ for (c = 0U; c < dp->fs->csize; c++) { /* Fill the new cluster with 0 */
+ dp->fs->wflag = 1U;
+ if ((sync_window(dp->fs)) != 0U) {
+ return FR_DISK_ERR;
+ }
+ dp->fs->winsect++;
+ }
+ dp->fs->winsect -= c; /* Rewind window offset */
+#else
+ if (stretch == ((s32)0U)) {
+ return FR_NO_FILE; /* If do not stretch, report EOT (this is to suppress warning) */
+ }
+ return FR_NO_FILE; /* Report EOT */
+#endif
+ }
+ dp->clust = clst; /* Initialize data for new cluster */
+ dp->sect = clust2sect(dp->fs, clst);
+ }
+ }
+ }
+
+ dp->index = (WORD)i; /* Current index */
+ dp->dir = dp->fs->win + ((i % (SS(dp->fs) / SZ_DIR)) * SZ_DIR); /* Current entry in the window */
+
+ return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Reserve directory entry */
+/*-----------------------------------------------------------------------*/
+
+#if !_FS_READONLY
+static
+FRESULT dir_alloc (
+ DIR* dp, /* Pointer to the directory object */
+ UINT nent /* Number of contiguous entries to allocate (1-21) */
+)
+{
+ FRESULT res;
+ UINT n;
+
+
+ res = dir_sdi(dp, 0U);
+ if (res == FR_OK) {
+ n = 0U;
+ do {
+ res = move_window(dp->fs, dp->sect);
+ if (res != FR_OK) {
+ break;
+ }
+ if ((dp->dir[0] == DDE) || (dp->dir[0] == 0U)) { /* Is it a blank entry? */
+ n += (UINT)1;
+ if (n == nent) {
+ break; /* A block of contiguous entries is found */
+ }
+ } else {
+ n = 0U; /* Not a blank entry. Restart to search */
+ }
+ res = dir_next(dp, 1); /* Next entry with table stretch enabled */
+ } while (res == FR_OK);
+ }
+ if (res == FR_NO_FILE) {
+ res = FR_DENIED; /* No directory entry to allocate */
+ }
+ return res;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Load/Store start cluster number */
+/*-----------------------------------------------------------------------*/
+
+static
+DWORD ld_clust (
+ FATFS* fs, /* Pointer to the fs object */
+ BYTE* dir /* Pointer to the directory entry */
+)
+{
+ DWORD cl;
+
+ cl = (DWORD)LD_WORD(dir+DIR_FstClusLO);
+ if (fs->fs_type == FS_FAT32) {
+ cl |= (DWORD)(LD_WORD(dir+DIR_FstClusHI)) << 16;
+ }
+
+ return cl;
+}
+
+
+#if !_FS_READONLY
+static
+void st_clust (
+ BYTE* dir, /* Pointer to the directory entry */
+ DWORD cl /* Value to be set */
+)
+{
+ ST_WORD(dir+DIR_FstClusLO, cl);
+ ST_WORD(dir+DIR_FstClusHI, cl >> 16);
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* LFN handling - Test/Pick/Fit an LFN segment from/to directory entry */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+static
+const BYTE LfnOfs[] = {1,3,5,7,9,14,16,18,20,22,24,28,30}; /* Offset of LFN characters in the directory entry */
+
+
+static
+s32 cmp_lfn ( /* 1:Matched, 0:Not matched */
+ WCHAR* lfnbuf, /* Pointer to the LFN to be compared */
+ BYTE* dir /* Pointer to the directory entry containing a part of LFN */
+)
+{
+ UINT i, s;
+ WCHAR wc, uc;
+
+
+ i = ((dir[LDIR_Ord] & ~LLE) - 1) * 13; /* Get offset in the LFN buffer */
+ s = 0; wc = 1;
+ do {
+ uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
+ if (wc) { /* Last character has not been processed */
+ wc = ff_wtoupper(uc); /* Convert it to upper case */
+ if (i >= _MAX_LFN || wc != ff_wtoupper(lfnbuf[i++])) /* Compare it */
+ return 0; /* Not matched */
+ } else {
+ if (uc != 0xFFFF) {
+ return 0; /* Check filler */
+ }
+ }
+ } while (++s < 13); /* Repeat until all characters in the entry are checked */
+
+ if ((dir[LDIR_Ord] & LLE) && wc && lfnbuf[i]) { /* Last segment matched but different length */
+ return 0;
+ }
+
+ return 1; /* The part of LFN matched */
+}
+
+
+
+static
+s32 pick_lfn ( /* 1:Succeeded, 0:Buffer overflow */
+ WCHAR* lfnbuf, /* Pointer to the Unicode-LFN buffer */
+ BYTE* dir /* Pointer to the directory entry */
+)
+{
+ UINT i, s;
+ WCHAR wc, uc;
+
+
+ i = ((dir[LDIR_Ord] & 0x3F) - 1) * 13; /* Offset in the LFN buffer */
+
+ s = 0; wc = 1;
+ do {
+ uc = LD_WORD(dir+LfnOfs[s]); /* Pick an LFN character from the entry */
+ if (wc) { /* Last character has not been processed */
+ if (i >= _MAX_LFN) {
+ return 0; /* Buffer overflow? */
+ }
+ lfnbuf[i++] = wc = uc; /* Store it */
+ } else {
+ if (uc != 0xFFFF) {
+ return 0; /* Check filler */
+ }
+ }
+ } while (++s < 13); /* Read all character in the entry */
+
+ if (dir[LDIR_Ord] & LLE) { /* Put terminator if it is the last LFN part */
+ if (i >= _MAX_LFN) {
+ return 0; /* Buffer overflow? */
+ }
+ lfnbuf[i] = 0;
+ }
+
+ return 1;
+}
+
+
+#if !_FS_READONLY
+static
+void fit_lfn (
+ const WCHAR* lfnbuf, /* Pointer to the LFN buffer */
+ BYTE* dir, /* Pointer to the directory entry */
+ BYTE ord, /* LFN order (1-20) */
+ BYTE sum /* SFN sum */
+)
+{
+ UINT i, s;
+ WCHAR wc;
+
+
+ dir[LDIR_Chksum] = sum; /* Set check sum */
+ dir[LDIR_Attr] = AM_LFN; /* Set attribute. LFN entry */
+ dir[LDIR_Type] = 0;
+ ST_WORD(dir+LDIR_FstClusLO, 0);
+
+ i = (ord - 1) * 13; /* Get offset in the LFN buffer */
+ s = wc = 0;
+ do {
+ if (wc != 0xFFFF) {
+ wc = lfnbuf[i++]; /* Get an effective character */
+ }
+ ST_WORD(dir+LfnOfs[s], wc); /* Put it */
+ if (!wc) {
+ wc = 0xFFFF; /* Padding characters following last character */
+ }
+ } while (++s < 13);
+ if (wc == 0xFFFF || !lfnbuf[i]) {
+ ord |= LLE; /* Bottom LFN part is the start of LFN sequence */
+ }
+ dir[LDIR_Ord] = ord; /* Set the LFN order */
+}
+
+#endif
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create numbered name */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+static
+void gen_numname (
+ BYTE* dst, /* Pointer to the buffer to store numbered SFN */
+ const BYTE* src, /* Pointer to SFN */
+ const WCHAR* lfn, /* Pointer to LFN */
+ UINT seq /* Sequence number */
+)
+{
+ BYTE ns[8], c;
+ UINT i, j;
+
+
+ mem_cpy(dst, src, 11);
+
+ if (seq > 5) { /* On many collisions, generate a hash number instead of sequential number */
+ WCHAR wc;
+ DWORD sr = seq;
+
+ while (*lfn) { /* Create a CRC */
+ wc = *lfn++;
+ for (i = 0; i < 16; i++) {
+ sr = (sr << 1) + (wc & 1);
+ wc >>= 1;
+ if (sr & 0x10000) {
+ sr ^= 0x11021;
+ }
+ }
+ }
+ seq = (UINT)sr;
+ }
+
+ /* itoa (hexdecimal) */
+ i = 7;
+ do {
+ c = (seq % 16) + '0';
+ if (c > '9') {
+ c += 7;
+ }
+ ns[i--] = c;
+ seq /= 16;
+ } while (seq);
+ ns[i] = '~';
+
+ /* Append the number */
+ for (j = 0; j < i && dst[j] != ' '; j++) {
+ if (IsDBCS1(dst[j])) {
+ if (j == i - 1) {
+ break;
+ }
+ j++;
+ }
+ }
+ do {
+ dst[j++] = (i < 8) ? ns[i++] : ' ';
+ } while (j < 8);
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Calculate sum of an SFN */
+/*-----------------------------------------------------------------------*/
+#if _USE_LFN
+static
+BYTE sum_sfn (
+ const BYTE* dir /* Pointer to the SFN entry */
+)
+{
+ BYTE sum = 0;
+ UINT n = 11;
+
+ do sum = (sum >> 1) + (sum << 7) + *dir++; while (--n);
+ return sum;
+}
+#endif
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Directory handling - Find an object in the directory */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT dir_find (
+ DIR* dp /* Pointer to the directory object linked to the file name */
+)
+{
+ FRESULT res;
+ BYTE c, *directory;
+#if _USE_LFN
+ BYTE a, ord, sum;
+#endif
+
+ res = dir_sdi(dp, 0U); /* Rewind directory object */
+ if (res == FR_OK) {
+
+#if _USE_LFN
+ ord = sum = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
+#endif
+ do {
+ res = move_window(dp->fs, dp->sect);
+ if (res != FR_OK) {
+ break;
+ }
+ directory = dp->dir; /* Ptr to the directory entry of current index */
+ c = *(directory+DIR_Name);
+ if (c == 0U) { res = FR_NO_FILE; break; } /* Reached to end of table */
+#if _USE_LFN /* LFN configuration */
+ a = directory[DIR_Attr] & AM_MASK;
+ if (c == DDE || ((a & AM_VOL) && a != AM_LFN)) { /* An entry without valid data */
+ ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
+ } else {
+ if (a == AM_LFN) { /* An LFN entry is found */
+ if (dp->lfn) {
+ if (c & LLE) { /* Is it start of LFN sequence? */
+ sum = directory[LDIR_Chksum];
+ c &= ~LLE; ord = c; /* LFN start order */
+ dp->lfn_idx = dp->index; /* Start index of LFN */
+ }
+ /* Check validity of the LFN entry and compare it with given name */
+ ord = (c == ord && sum == directory[LDIR_Chksum] && cmp_lfn(dp->lfn, dir)) ? ord - 1 : 0xFF;
+ }
+ } else { /* An SFN entry is found */
+ if (!ord && sum == sum_sfn(directory)) {
+ break; /* LFN matched? */
+ }
+ if (!(dp->fn[NS] & NS_LOSS) && !mem_cmp(dir, dp->fn, 11)) {
+ break; /* SFN matched? */
+ }
+ ord = 0xFF; dp->lfn_idx = 0xFFFF; /* Reset LFN sequence */
+ }
+ }
+#else /* Non LFN configuration */
+ if (((!mem_cmp(directory, dp->fn, 11U)) != 0)&&((!(*(directory+DIR_Attr) & AM_VOL)) != 0U)) { /* Is it a valid entry? */
+ break;
+ }
+#endif
+ res = dir_next(dp, 0); /* Next entry */
+ } while (res == FR_OK);
+ }
+
+ return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read an object from the directory */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2
+static
+FRESULT dir_read (
+ DIR* dp, /* Pointer to the directory object */
+ s32 vol /* Filtered by 0:file/directory or 1:volume label */
+)
+{
+ FRESULT res;
+ BYTE a, c, *directory;
+#if _USE_LFN
+ BYTE ord = 0xFF, sum = 0xFF;
+#endif
+
+ res = FR_NO_FILE;
+ while ((dp->sect) != 0U) {
+ res = move_window(dp->fs, dp->sect);
+ if (res != FR_OK) {
+ break;
+ }
+ directory = dp->dir; /* Ptr to the directory entry of current index */
+ c = *(directory+DIR_Name);
+ if (c == 0U) { res = FR_NO_FILE; break; } /* Reached to end of table */
+ a = (*(directory+DIR_Attr)) & AM_MASK;
+#if _USE_LFN /* LFN configuration */
+ if (c == DDE || (!_FS_RPATH && c == '.') || (s32)(a == AM_VOL) != vol) { /* An entry without valid data */
+ ord = 0xFFU;
+ } else {
+ if (a == AM_LFN) { /* An LFN entry is found */
+ if (c & LLE) { /* Is it start of LFN sequence? */
+ sum = directory[LDIR_Chksum];
+ c &= ~LLE; ord = c;
+ dp->lfn_idx = dp->index;
+ }
+ /* Check LFN validity and capture it */
+ ord = (c == ord && sum == directory[LDIR_Chksum] && pick_lfn(dp->lfn, directory)) ? ord - 1 : 0xFF;
+ } else { /* An SFN entry is found */
+ if (ord || sum != sum_sfn(directory)) { /* Is there a valid LFN? */
+ dp->lfn_idx = 0xFFFFU; /* It has no LFN. */
+ }
+ break;
+ }
+ }
+#else /* Non LFN configuration */
+ if (((c != DDE) != 0U) && ((_FS_RPATH || (c != (BYTE)'.')) != 0) && (a != AM_LFN) && (((a == AM_VOL) == vol)!= 0U)) { /* Is it a valid entry? */
+ break;
+ }
+#endif
+ res = dir_next(dp, 0); /* Next entry */
+ if (res != FR_OK) {
+ break;
+ }
+ }
+
+ if (res != FR_OK) {
+ dp->sect = 0U;
+ }
+
+ return res;
+}
+#endif /* _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2 */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Register an object to the directory */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY
+static
+FRESULT dir_register ( /* FR_OK:Successful, FR_DENIED:No free entry or too many SFN collision, FR_DISK_ERR:Disk error */
+ DIR* dp /* Target directory with object name to be created */
+)
+{
+ FRESULT res;
+#if _USE_LFN /* LFN configuration */
+ UINT n, nent;
+ BYTE sn[12], *fn, sum;
+ WCHAR *lfn;
+
+
+ fn = dp->fn; lfn = dp->lfn;
+ mem_cpy(sn, fn, 12);
+
+ if (_FS_RPATH && (sn[NS] & NS_DOT)) { /* Cannot create dot entry */
+ return FR_INVALID_NAME;
+ }
+
+ if (sn[NS] & NS_LOSS) { /* When LFN is out of 8.3 format, generate a numbered name */
+ fn[NS] = 0; dp->lfn = 0; /* Find only SFN */
+ for (n = 1; n < 100; n++) {
+ gen_numname(fn, sn, lfn, n); /* Generate a numbered name */
+ res = dir_find(dp); /* Check if the name collides with existing SFN */
+ if (res != FR_OK) {
+ break;
+ }
+ }
+ if (n == 100) {
+ return FR_DENIED; /* Abort if too many collisions */
+ }
+ if (res != FR_NO_FILE) {
+ return res; /* Abort if the result is other than 'not collided' */
+ }
+ fn[NS] = sn[NS]; dp->lfn = lfn;
+ }
+
+ if (sn[NS] & NS_LFN) { /* When LFN is to be created, allocate entries for an SFN + LFNs. */
+ for (n = 0; lfn[n]; n++) ;
+ nent = (n + 25) / 13;
+ } else { /* Otherwise allocate an entry for an SFN */
+ nent = 1;
+ }
+ res = dir_alloc(dp, nent); /* Allocate entries */
+
+ if (res == FR_OK && --nent) { /* Set LFN entry if needed */
+ res = dir_sdi(dp, dp->index - nent);
+ if (res == FR_OK) {
+ sum = sum_sfn(dp->fn); /* Sum value of the SFN tied to the LFN */
+ do { /* Store LFN entries in bottom first */
+ res = move_window(dp->fs, dp->sect);
+ if (res != FR_OK) {
+ break;
+ }
+ fit_lfn(dp->lfn, dp->dir, (BYTE)nent, sum);
+ dp->fs->wflag = 1;
+ res = dir_next(dp, 0); /* Next entry */
+ } while (res == FR_OK && --nent);
+ }
+ }
+#else /* Non LFN configuration */
+ res = dir_alloc(dp, 1U); /* Allocate an entry for SFN */
+#endif
+
+ if (res == FR_OK) { /* Set SFN entry */
+ res = move_window(dp->fs, dp->sect);
+ if (res == FR_OK) {
+ mem_set(dp->dir, 0, SZ_DIR); /* Clean the entry */
+ mem_cpy(dp->dir, dp->fn, 11U); /* Put SFN */
+#if _USE_LFN
+ dp->dir[DIR_NTres] = *(dp->fn+NS) & (NS_BODY | NS_EXT); /* Put NT flag */
+#endif
+ dp->fs->wflag = 1U;
+ }
+ }
+
+ return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Remove an object from the directory */
+/*-----------------------------------------------------------------------*/
+#if !_FS_READONLY && !_FS_MINIMIZE
+static
+FRESULT dir_remove ( /* FR_OK: Successful, FR_DISK_ERR: A disk error */
+ DIR* dp /* Directory object pointing the entry to be removed */
+)
+{
+ FRESULT res;
+ WORD temp;
+#if _USE_LFN /* LFN configuration */
+ UINT i;
+ i = dp->index; /* SFN index */
+ res = dir_sdi(dp, (WORD)((dp->lfn_idx == 0xFFFF) ? i : dp->lfn_idx)); /* Goto the SFN or top of the LFN entries */
+ if (res == FR_OK) {
+ do {
+ res = move_window(dp->fs, dp->sect);
+ if (res != FR_OK) {
+ break;
+ }
+ mem_set(dp->dir, 0, SZ_DIR); /* Clear and mark the entry "deleted" */
+ *dp->dir = DDE;
+ dp->fs->wflag = 1;
+ if (dp->index >= i) {
+ break; /* When reached SFN, all entries of the object has been deleted. */
+ }
+ res = dir_next(dp, 0); /* Next entry */
+ } while (res == FR_OK);
+ if (res == FR_NO_FILE) {
+ res = FR_INT_ERR;
+ }
+ }
+
+#else /* Non LFN configuration */
+ temp = dp->index;
+ res = dir_sdi(dp, temp);
+ if (res == FR_OK) {
+ res = move_window(dp->fs, dp->sect);
+ if (res == FR_OK) {
+ mem_set(dp->dir, 0, SZ_DIR); /* Clear and mark the entry "deleted" */
+ *dp->dir = DDE;
+ dp->fs->wflag = 1U;
+ }
+ }
+#endif
+
+ return res;
+}
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get file information from directory entry */
+/*-----------------------------------------------------------------------*/
+#if _FS_MINIMIZE <= 1 || _FS_RPATH >= 2
+static
+void get_fileinfo ( /* No return code */
+ DIR* dp, /* Pointer to the directory object */
+ FILINFO* fno /* Pointer to the file information to be filled */
+)
+{
+ UINT i;
+ TCHAR *p, c;
+
+
+ p = fno->fname;
+ if (dp->sect!=((DWORD)0U)) { /* Get SFN */
+ BYTE *dir = dp->dir;
+
+ i = 0U;
+ while (i < 11U) { /* Copy name body and extension */
+ c = (TCHAR)(*(dir+i));
+ i += (UINT)1;
+ if (c == ' ') {
+ continue; /* Skip padding spaces */
+ }
+ if (c == (BYTE)NDDE) {
+ c = (TCHAR)DDE; /* Restore replaced DDE character */
+ }
+ if (i == (UINT)9) {
+ *p = '.'; /* Insert a . if extension is exist */
+ p += 1U;
+ }
+#if _USE_LFN
+ if (IsUpper(c) && (dir[DIR_NTres] & (i >= 9U ? NS_EXT : NS_BODY))) {
+ c += 0x20; /* To lower */
+ }
+#if _LFN_UNICODE
+ if (IsDBCS1(c) && i != 8 && i != 11 && IsDBCS2(dir[i])) {
+ c = c << 8 | dir[i++];
+ }
+ c = ff_convert(c, 1); /* OEM -> Unicode */
+ if (c == ((TCHAR)0U)) {
+ c = '?';
+ }
+#endif
+#endif
+ *p = c;
+ p += 1U;
+ }
+ fno->fattrib = (*(dir+DIR_Attr)); /* Attribute */
+ fno->fsize = LD_DWORD(dir+DIR_FileSize); /* Size */
+ fno->fdate = LD_WORD(dir+DIR_WrtDate); /* Date */
+ fno->ftime = LD_WORD(dir+DIR_WrtTime); /* Time */
+ }
+ *p = 0; /* Terminate SFN string by a \0 */
+
+#if _USE_LFN
+ if (fno->lfname) {
+ WCHAR w, *lfn;
+
+ i = 0; p = fno->lfname;
+ if (dp->sect && fno->lfsize && dp->lfn_idx != 0xFFFF) { /* Get LFN if available */
+ lfn = dp->lfn;
+ while ((w = *lfn++) != 0) { /* Get an LFN character */
+#if !_LFN_UNICODE
+ w = ff_convert(w, 0); /* Unicode -> OEM */
+ if (!w) { i = 0; break; } /* No LFN if it could not be converted */
+ if (DF1S && w >= 0x100) { /* Put 1st byte if it is a DBC (always false on SBCS cfg) */
+ p[i++] = (TCHAR)(w >> 8);
+ }
+#endif
+ if (i >= fno->lfsize - 1) { i = 0; break; } /* No LFN if buffer overflow */
+ p[i++] = (TCHAR)w;
+ }
+ }
+ p[i] = 0; /* Terminate LFN string by a \0 */
+ }
+#endif
+}
+#endif /* _FS_MINIMIZE <= 1 || _FS_RPATH >= 2*/
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Pick a segment and create the object name in directory form */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT create_name (
+ DIR* dp, /* Pointer to the directory object */
+ const TCHAR** path /* Pointer to pointer to the segment in the path string */
+)
+{
+#if _USE_LFN /* LFN configuration */
+ BYTE b, cf;
+ WCHAR w, *lfn;
+ UINT i, ni, si, di;
+ const BYTE *p;
+
+ /* Create LFN in Unicode */
+ for (p = *path; *p == '/' || *p == '\\'; p++) ; /* Strip duplicated separator */
+ lfn = dp->lfn;
+ si = di = 0;
+ for (;;) {
+ w = p[si++]; /* Get a character */
+ if (w < ' ' || w == '/' || w == '\\') {
+ break; /* Break on end of segment */
+ }
+ if (di >= _MAX_LFN) { /* Reject too long name */
+ return FR_INVALID_NAME;
+ }
+#if !_LFN_UNICODE
+ w &= 0xFF;
+ if (IsDBCS1(w)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
+ b = (BYTE)p[si++]; /* Get 2nd byte */
+ if (!IsDBCS2(b)) {
+ return FR_INVALID_NAME; /* Reject invalid sequence */
+ }
+ w = (w << 8) + b; /* Create a DBC */
+ }
+ w = ff_convert(w, 1); /* Convert ANSI/OEM to Unicode */
+ if (!w) {
+ return FR_INVALID_NAME; /* Reject invalid code */
+ }
+#endif
+ if (w < 0x80 && chk_chr("\"*:<>\?|\x7F", w)) {/* Reject illegal characters for LFN */
+ return FR_INVALID_NAME;
+ }
+ lfn[di++] = w; /* Store the Unicode character */
+ }
+ *path = &p[si]; /* Return pointer to the next segment */
+ cf = (w < ' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
+#if _FS_RPATH
+ if ((di == 1 && lfn[di-1] == '.') || /* Is this a dot entry? */
+ (di == 2 && lfn[di-1] == '.' && lfn[di-2] == '.')) {
+ lfn[di] = 0;
+ for (i = 0; i < 11; i++)
+ dp->fn[i] = (i < di) ? '.' : ' ';
+ dp->fn[i] = cf | NS_DOT; /* This is a dot entry */
+ return FR_OK;
+ }
+#endif
+ while (di) { /* Strip trailing spaces and dots */
+ w = lfn[di-1];
+ if (w != ' ' && w != '.') {
+ break;
+ }
+ di--;
+ }
+ if (!di) {
+ return FR_INVALID_NAME; /* Reject nul string */
+ }
+
+ lfn[di] = 0; /* LFN is created */
+
+ /* Create SFN in directory form */
+ mem_set(dp->fn, ' ', 11);
+ for (si = 0; lfn[si] == ' ' || lfn[si] == '.'; si++) ; /* Strip leading spaces and dots */
+ if (si) {
+ cf |= NS_LOSS | NS_LFN;
+ }
+ while (di && lfn[di - 1] != '.') {
+ di--; /* Find extension (di<=si: no extension) */
+ }
+
+ b = i = 0; ni = 8;
+ for (;;) {
+ w = lfn[si++]; /* Get an LFN character */
+ if ((!w) != 0U) {
+ break; /* Break on end of the LFN */
+ }
+ if (w == ' ' || (w == '.' && si != di)) { /* Remove spaces and dots */
+ cf |= NS_LOSS | NS_LFN; continue;
+ }
+
+ if (i >= ni || si == di) { /* Extension or end of SFN */
+ if (ni == 11) { /* Long extension */
+ cf |= NS_LOSS | NS_LFN; break;
+ }
+ if (si != di) {
+ cf |= NS_LOSS | NS_LFN; /* Out of 8.3 format */
+ }
+ if (si > di) {
+ break; /* No extension */
+ }
+ si = di; i = 8; ni = 11; /* Enter extension section */
+ b <<= 2; continue;
+ }
+
+ if (w >= 0x80) { /* Non ASCII character */
+#ifdef _EXCVT
+ w = ff_convert(w, 0); /* Unicode -> OEM code */
+ if (w) {
+ w = ExCvt[w - 0x80]; /* Convert extended character to upper (SBCS) */
+ }
+#else
+ w = ff_convert(ff_wtoupper(w), 0); /* Upper converted Unicode -> OEM code */
+#endif
+ cf |= NS_LFN; /* Force create LFN entry */
+ }
+
+ if (DF1S && w >= 0x100) { /* Double byte character (always false on SBCS cfg) */
+ if (i >= ni - 1) {
+ cf |= NS_LOSS | NS_LFN; i = ni; continue;
+ }
+ dp->fn[i++] = (BYTE)(w >> 8);
+ } else { /* Single byte character */
+ if (!w || chk_chr("+,;=[]", w)) { /* Replace illegal characters for SFN */
+ w = '_'; cf |= NS_LOSS | NS_LFN;/* Lossy conversion */
+ } else {
+ if (IsUpper(w)) { /* ASCII large capital */
+ b |= 2;
+ } else {
+ if (IsLower(w)) { /* ASCII small capital */
+ b |= 1; w -= 0x20;
+ }
+ }
+ }
+ }
+ dp->fn[i++] = (BYTE)w;
+ }
+
+ if (dp->fn[0] == DDE) {
+ dp->fn[0] = NDDE; /* If the first character collides with deleted mark, replace it with 0x05 */
+ }
+
+ if (ni == 8) {
+ b <<= 2;
+ }
+ if ((b & 0x0C) == 0x0C || (b & 0x03) == 0x03) { /* Create LFN entry when there are composite capitals */
+ cf |= NS_LFN;
+ }
+ if (!(cf & NS_LFN)) { /* When LFN is in 8.3 format without extended character, NT flags are created */
+ if ((b & 0x03) == 0x01) {
+ cf |= NS_EXT; /* NT flag (Extension has only small capital) */
+ }
+ if ((b & 0x0C) == 0x04) {
+ cf |= NS_BODY; /* NT flag (Filename has only small capital) */
+ }
+ }
+
+ dp->fn[NS] = cf; /* SFN is created */
+
+ return FR_OK;
+
+
+#else /* Non-LFN configuration */
+ BYTE b, c, d, *sfn;
+ UINT ni, si, i;
+ const BYTE *p;
+ p = *path;
+ /* Create file name in directory form */
+ for (; (*p == (BYTE)'/') || (*p == (BYTE)'\\'); ) {p++;}/* Strip duplicated separator */
+ sfn = dp->fn;
+ mem_set(sfn, (s32)' ', 11U);
+ si = 0U;
+ i = 0U;
+ b = 0U; ni = 8U;
+#if _FS_RPATH
+ if (p[si] == '.') { /* Is this a dot entry? */
+ for (;;) {
+ c = (BYTE)p[si++];
+ if (c != '.' || si >= 3) {
+ break;
+ }
+ sfn[i++] = c;
+ }
+ if (c != '/' && c != '\\' && c > ' ') {
+ return FR_INVALID_NAME;
+ }
+ *path = &p[si]; /* Return pointer to the next segment */
+ sfn[NS] = (c <= ' ') ? NS_LAST | NS_DOT : NS_DOT; /* Set last segment flag if end of path */
+ return FR_OK;
+ }
+#endif
+ for (;;) {
+ c = ((BYTE)(*(p+si)));
+ si+=1U;
+ if (((c <= (BYTE)' ') != 0) || ((c == (BYTE)'/') != 0) || ((c == (BYTE)'\\') != 0)) {
+ break; /* Break on end of segment */
+ }
+ if ((c == (BYTE)'.') || (i >= ni)) {
+ if ((ni != 8U) || (c != (BYTE)'.')) {
+ return FR_INVALID_NAME;
+ }
+ i = 8U; ni = 11U;
+ b <<= 2U; continue;
+ }
+ if (c >= 0x80U) { /* Extended character? */
+ b |= 3U; /* Eliminate NT flag */
+#ifdef _EXCVT
+ c = ExCvt[c - 0x80U]; /* To upper extended characters (SBCS cfg) */
+#else
+#if !DF1S
+ return FR_INVALID_NAME; /* Reject extended characters (ASCII cfg) */
+#endif
+#endif
+ }
+ if (IsDBCS1(c)) { /* Check if it is a DBC 1st byte (always false on SBCS cfg) */
+ d = ((BYTE)(*(p+si))); /* Get 2nd byte */
+ si+=1U;
+ if ((!IsDBCS2(d)) || (i >= (ni - 1))) { /* Reject invalid DBC */
+ return FR_INVALID_NAME;
+ }
+ *(sfn+i) = c;
+ i+=1U;
+ *(sfn+i) = d;
+ i+=1U;
+ } else { /* Single byte code */
+ if ((chk_chr("\"*+,:;<=>\?[]|\x7F", c)) != 0) { /* Reject illegal chrs for SFN */
+ return FR_INVALID_NAME;
+ }
+ if (IsUpper(c)) { /* ASCII large capital? */
+ b |= 2U;
+ } else {
+ if (IsLower(c)) { /* ASCII small capital? */
+ b |= 1U; c -= 0x20U;
+ }
+ }
+ *(sfn+i) = c;
+ i+=1U;
+ }
+ }
+ *path = (p+si); /* Return pointer to the next segment */
+ c = (c <= (BYTE)' ') ? NS_LAST : 0; /* Set last segment flag if end of path */
+
+ if (i == (UINT)0U){
+ return FR_INVALID_NAME; /* Reject nul string */
+ }
+ if ((*(sfn+0)) == DDE){
+ *(sfn+0) = NDDE; /* When first char collides with 0xE5, replace it with 0x05 */
+ }
+ if (ni == 8U){
+ b <<= 2U;
+ }
+ if ((b & 0x03U) == 0x01U){
+ c |= NS_EXT; /* NT flag (Name extension has only small capital) */
+ }
+ if ((b & 0x0CU) == 0x04U){
+ c |= NS_BODY; /* NT flag (Name body has only small capital) */
+ }
+
+ *(sfn+NS) = c; /* Store NT flag, File name is created */
+
+ return FR_OK;
+#endif
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Follow a file path */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT follow_path ( /* FR_OK(0): successful, !=0: error code */
+ DIR* dp, /* Directory object to return last directory and found object */
+ const TCHAR* path /* Full-path string to find a file or directory */
+)
+{
+ FRESULT res;
+ BYTE *directory, NameStatus;
+ TCHAR Status = *path;
+ const TCHAR *LocPath = path;
+
+#if _FS_RPATH
+ if (*LocPath == '/' || *LocPath == '\\') { /* There is a heading separator */
+ LocPath++; dp->sclust = 0; /* Strip it and start from the root dir */
+ } else { /* No heading separator */
+ dp->sclust = dp->fs->cdir; /* Start from the current dir */
+ }
+#else
+ if ((*LocPath == '/') || (*LocPath == '\\')) { /* Strip heading separator if exist */
+ LocPath++;
+ }
+ dp->sclust = 0U; /* Start from the root dir */
+#endif
+ Status = *LocPath;
+ if ((UINT)Status < (UINT)' ') { /* Null path name is the origin directory itself */
+ res = dir_sdi(dp, 0U);
+ dp->dir = 0U;
+ } else { /* Follow path */
+ for (;;) {
+ res = create_name(dp, &LocPath); /* Get a segment name of the path */
+ if (res != FR_OK) {
+ break;
+ }
+ res = dir_find(dp); /* Find an object with the sagment name */
+ NameStatus = *(dp->fn+NS);
+ if (res != FR_OK) { /* Failed to find the object */
+ if (res == FR_NO_FILE) { /* Object is not found */
+ if (_FS_RPATH && ((NameStatus & NS_DOT) != 0U)) { /* If dot entry is not exist, */
+ dp->sclust = 0U; dp->dir = 0U; /* it is the root directory and stay there */
+ if ((!(NameStatus & NS_LAST))!= 0U) {
+ continue; /* Continue to follow if not last segment */
+ }
+ res = FR_OK; /* Ended at the root directroy. Function completed. */
+ } else { /* Could not find the object */
+ if ((!(NameStatus & NS_LAST)) != 0U) {
+ res = FR_NO_PATH; /* Adjust error code if not last segment */
+ }
+ }
+ }
+ break;
+ }
+ if ((NameStatus & NS_LAST) != 0U) {
+ break; /* Last segment matched. Function completed. */
+ }
+ directory = dp->dir; /* Follow the sub-directory */
+ if ((!((*(directory+DIR_Attr)) & AM_DIR)) != 0U) { /* It is not a sub-directory and cannot follow */
+ res = FR_NO_PATH; break;
+ }
+ dp->sclust = (DWORD)ld_clust(dp->fs, directory);
+ }
+ }
+
+ return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get logical drive number from path name */
+/*-----------------------------------------------------------------------*/
+
+static
+s32 get_ldnumber ( /* Returns logical drive number (-1:invalid drive) */
+ const TCHAR** path /* Pointer to pointer to the path name */
+)
+{
+ const TCHAR *tp, *tt;
+ UINT i;
+ s32 vol = -1;
+
+
+ if ((*path)!=NULL) { /* If the pointer is not a null */
+ tt = *path;
+ for (; (*tt >= '!') && (*tt != ':'); ) {tt += 1U;} /* Find ':' in the path */
+ if (*tt == ':') { /* If a ':' is exist in the path name */
+ tp = *path;
+ i = (*tp - '0');
+ tp += 1U;
+ if ((i < 10U) && (tp == tt)) { /* Is there a numeric drive id? */
+ if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
+ vol = (s32)i;
+ tt += 1U;
+ *path = ((TCHAR *)tt);
+ }
+ } else { /* No numeric drive number */
+#if _STR_VOLUME_ID /* Find string drive id */
+ static const char* const str[] = {_VOLUME_STRS};
+ const char *sp;
+ char c;
+ TCHAR tc;
+
+ i = 0; tt += 1U;
+ do {
+ sp = str[i]; tp = *path;
+ do { /* Compare a string drive id with path name */
+ c = *sp++; tc = *tp++;
+ if (IsLower(tc)) {
+ tc -= 0x20;
+ }
+ } while (c && (TCHAR)c == tc);
+ } while ((c || tp != tt) && ++i < _VOLUMES); /* Repeat for each id until pattern match */
+ if (i < _VOLUMES) { /* If a drive id is found, get the value and strip it */
+ vol = (s32)i;
+ *path = tt;
+ }
+#endif
+ }
+ }
+ else {
+#if _FS_RPATH && _VOLUMES >= 2
+ vol = CurrVol; /* Current drive */
+#else
+ vol = 0; /* Drive 0 */
+#endif
+ }
+ }
+ return vol;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Load a sector and check if it is an FAT boot sector */
+/*-----------------------------------------------------------------------*/
+
+static
+BYTE check_fs ( /* 0:FAT boor sector, 1:Valid boor sector but not FAT, 2:Not a boot sector, 3:Disk error */
+ FATFS* fs, /* File system object */
+ DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */
+)
+{
+ fs->wflag = 0U; fs->winsect = 0xFFFFFFFFU; /* Invaidate window */
+ if (move_window(fs, sect) != FR_OK) { /* Load boot record */
+ return (BYTE)3;
+ }
+
+ if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55U) { /* Check boot record signature (always placed at offset 510 even if the sector size is >512) */
+ return (BYTE)2;
+ }
+
+ if ((LD_DWORD(&fs->win[BS_FilSysType]) & 0xFFFFFFU) == 0x544146U) { /* Check "FAT" string */
+ return (BYTE)0;
+ }
+ if ((LD_DWORD(&fs->win[BS_FilSysType32]) & 0xFFFFFFU) == 0x544146U) { /* Check "FAT" string */
+ return (BYTE)0;
+ }
+
+ return (BYTE)1;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Find logical drive and check if the volume is mounted */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT find_volume ( /* FR_OK(0): successful, !=0: any error occurred */
+ FATFS** rfs, /* Pointer to pointer to the found file system object */
+ const TCHAR** path, /* Pointer to pointer to the path name (drive number) */
+ BYTE wmode /* !=0: Check write protection for write access */
+)
+{
+ static WORD Fsid; /* File system mount ID */
+ BYTE fmt;
+ s32 vol;
+ DSTATUS stat;
+ DWORD bsect, fasize, tsect, sysect, nclst, szbfat;
+ WORD nrsv;
+ FATFS *fs;
+
+
+ /* Get logical drive number from the path name */
+ (*rfs) = 0;
+ vol = get_ldnumber(path);
+ if (vol < 0) {return FR_INVALID_DRIVE;}
+
+ /* Check if the file system object is valid or not */
+ fs = FatFs[vol]; /* Get pointer to the file system object */
+ if ((!fs) != 0U) {
+ return FR_NOT_ENABLED; /* Is the file system object available? */
+ }
+
+ ENTER_FF(fs); /* Lock the volume */
+ *rfs = fs; /* Return pointer to the file system object */
+
+ if (fs->fs_type != 0U) { /* If the volume has been mounted */
+ stat = disk_status(fs->drv);
+ if ((!(stat & STA_NOINIT)) != 0U) { /* and the physical drive is kept initialized */
+ if (!_FS_READONLY && (wmode != (BYTE)0U) && ((stat & STA_PROTECT) != (BYTE)0U)) {/* Check write protection if needed */
+ return FR_WRITE_PROTECTED;
+ }
+ return FR_OK; /* The file system object is valid */
+ }
+ }
+
+ /* The file system object is not valid. */
+ /* Following code attempts to mount the volume. (analyze BPB and initialize the fs object) */
+
+ fs->fs_type = 0U; /* Clear the file system object */
+ fs->drv = LD2PD(vol); /* Bind the logical drive and a physical drive */
+ stat = disk_initialize(fs->drv); /* Initialize the physical drive */
+ if ((stat & STA_NOINIT) != (BYTE)0U) { /* Check if the initialization succeeded */
+ return FR_NOT_READY; /* Failed to initialize due to no medium or hard error */
+ }
+ if (!_FS_READONLY && (wmode != (BYTE)0U)&& ((stat & STA_PROTECT) != (BYTE)0U)) { /* Check disk write protection if needed */
+ return FR_WRITE_PROTECTED;
+ }
+#if _MAX_SS != _MIN_SS /* Get sector size (multiple sector size cfg only) */
+ if (disk_ioctl(fs->drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK
+ || SS(fs) < _MIN_SS || SS(fs) > _MAX_SS) {
+ return FR_DISK_ERR;
+ }
+#endif
+ /* Find an FAT partition on the drive. Supports only generic partitioning, FDISK and SFD. */
+ bsect = 0U;
+ fmt = check_fs(fs, bsect); /* Load sector 0 and check if it is an FAT boot sector as SFD */
+ if ((fmt == 1U) || (((!fmt) != (BYTE)0U) && ((LD2PT(vol)) != 0U))) { /* Not an FAT boot sector or forced partition number */
+ UINT i;
+ DWORD br[4];
+
+ for (i = 0U; i < 4U; i++) { /* Get partition offset */
+ BYTE *pt = fs->win+MBR_Table + ((WORD)i * (WORD)SZ_PTE);
+ br[i] = ((*(pt+4)) != (BYTE)0U) ? LD_DWORD((pt+8U)) : 0U;
+ }
+ i = LD2PT(vol); /* Partition number: 0:auto, 1-4:forced */
+ if (i != 0U) {
+ i--;
+ }
+ do { /* Find an FAT volume */
+ bsect = br[i];
+ fmt = (bsect!=(DWORD)0U) ? check_fs(fs, bsect) : 2U; /* Check the partition */
+ i += (UINT)1;
+ } while ((!LD2PT(vol)) && (fmt != (BYTE)0U)&& (i < 4U));
+ }
+ if (fmt == 3U) {
+ return FR_DISK_ERR; /* An error occured in the disk I/O layer */
+ }
+ if (fmt != 0U) {
+ return FR_NO_FILESYSTEM; /* No FAT volume is found */
+ }
+
+ /* An FAT volume is found. Following code initializes the file system object */
+
+ if (LD_WORD(fs->win+BPB_BytsPerSec) != (WORD)SS(fs)) { /* (BPB_BytsPerSec must be equal to the physical sector size) */
+ return FR_NO_FILESYSTEM;
+ }
+
+ fasize = ((DWORD)LD_WORD(fs->win+BPB_FATSz16)); /* Number of sectors per FAT */
+ if ((!fasize) != 0U) {
+ fasize = (DWORD)LD_DWORD(fs->win+BPB_FATSz32);
+ }
+ fs->fsize = fasize;
+
+ fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */
+ if ((fs->n_fats != 1U) && (fs->n_fats != 2U)) { /* (Must be 1 or 2) */
+ return FR_NO_FILESYSTEM;
+ }
+ fasize *= (DWORD)fs->n_fats; /* Number of sectors for FAT area */
+
+ fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */
+ if (((!fs->csize) != 0U) || ((fs->csize & (fs->csize - 1U)) != 0U)) { /* (Must be power of 2) */
+ return FR_NO_FILESYSTEM;
+ }
+
+ fs->n_rootdir = LD_WORD(fs->win+BPB_RootEntCnt); /* Number of root directory entries */
+ if ((fs->n_rootdir % (SS(fs) / SZ_DIR)) != 0U) { /* (Must be sector aligned) */
+ return FR_NO_FILESYSTEM;
+ }
+
+ tsect = ((DWORD)LD_WORD(fs->win+BPB_TotSec16)); /* Number of sectors on the volume */
+ if ((!tsect) != 0U) {
+ tsect = (DWORD)LD_DWORD(fs->win+BPB_TotSec32);
+ }
+
+ nrsv = LD_WORD(fs->win+BPB_RsvdSecCnt); /* Number of reserved sectors */
+ if ((!nrsv) != 0U) {
+ return FR_NO_FILESYSTEM; /* (Must not be 0) */
+ }
+
+ /* Determine the FAT sub type */
+ sysect = (DWORD)nrsv + fasize + (fs->n_rootdir / (SS(fs) / SZ_DIR)); /* RSV+FAT+DIR */
+ if (tsect < sysect) {
+ return FR_NO_FILESYSTEM; /* (Invalid volume size) */
+ }
+ nclst = (tsect - sysect) / ((DWORD)fs->csize); /* Number of clusters */
+ if ((!nclst) != 0U) {
+ return FR_NO_FILESYSTEM; /* (Invalid volume size) */
+ }
+ fmt = FS_FAT12;
+ if (nclst >= MIN_FAT16) {
+ fmt = FS_FAT16;
+ }
+ if (nclst >= MIN_FAT32) {
+ fmt = FS_FAT32;
+ }
+
+ /* Boundaries and Limits */
+ fs->n_fatent = nclst + 2U; /* Number of FAT entries */
+ fs->volbase = bsect; /* Volume start sector */
+ fs->fatbase = bsect + nrsv; /* FAT start sector */
+ fs->database = bsect + sysect; /* Data start sector */
+ if (fmt == FS_FAT32) {
+ if (fs->n_rootdir != 0U) {
+ return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must be 0) */
+ }
+ fs->dirbase = LD_DWORD(fs->win+BPB_RootClus); /* Root directory start cluster */
+ szbfat = fs->n_fatent * 4U; /* (Needed FAT size) */
+ } else {
+ if ((!fs->n_rootdir) != 0U) {
+ return FR_NO_FILESYSTEM; /* (BPB_RootEntCnt must not be 0) */
+ }
+ fs->dirbase = fs->fatbase + fasize; /* Root directory start sector */
+ szbfat = (((DWORD)fmt) == FS_FAT16) ? /* (Needed FAT size) */
+ (fs->n_fatent * ((DWORD)2U)) : (((fs->n_fatent * (DWORD)3U) / (DWORD)2U) + (fs->n_fatent & (DWORD)1U));
+ }
+ if (fs->fsize < ((szbfat + (SS(fs) - 1)) / SS(fs))) { /* (BPB_FATSz must not be less than needed) */
+ return FR_NO_FILESYSTEM;
+ }
+
+#if !_FS_READONLY
+ /* Initialize cluster allocation information */
+ fs->last_clust = 0xFFFFFFFFU;
+ fs->free_clust = 0xFFFFFFFFU;
+
+ /* Get fsinfo if available */
+ fs->fsi_flag = 0x80U;
+#if (_FS_NOFSINFO & 3) != 3U
+ if ((fmt == FS_FAT32) /* Enable FSINFO only if FAT32 and BPB_FSInfo is 1 */
+ && (LD_WORD(fs->win+BPB_FSInfo) == 1U)
+ && (move_window(fs, bsect + 1U) == FR_OK))
+ {
+ fs->fsi_flag = 0U;
+ if ((LD_WORD(fs->win+BS_55AA) == 0xAA55U) /* Load FSINFO data if available */
+ && (LD_DWORD(fs->win+FSI_LeadSig) == 0x41615252U)
+ && (LD_DWORD(fs->win+FSI_StrucSig) == 0x61417272U))
+ {
+#if (_FS_NOFSINFO & 1) == 0
+ fs->free_clust = LD_DWORD(fs->win+FSI_Free_Count);
+#endif
+#if (_FS_NOFSINFO & 2) == 0
+ fs->last_clust = LD_DWORD(fs->win+FSI_Nxt_Free);
+#endif
+ }
+ }
+#endif
+#endif
+ fs->fs_type = fmt; /* FAT sub-type */
+ Fsid += (WORD)1;
+ fs->id = Fsid; /* File system mount ID */
+#if _FS_RPATH
+ fs->cdir = 0; /* Set current directory to root */
+#endif
+#if _FS_LOCK /* Clear file lock semaphores */
+ clear_lock(fs);
+#endif
+
+ return FR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Check if the file/directory object is valid or not */
+/*-----------------------------------------------------------------------*/
+
+static
+FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */
+ void* obj /* Pointer to the object FIL/DIR to check validity */
+)
+{
+ FIL *fil = (FIL *)(void *)obj; /* Assuming offset of .fs and .id in the FIL/DIR structure is identical */
+ FRESULT res;
+
+ if (((!fil) != 0U) || ((!fil->fs) != 0U) || ((!fil->fs->fs_type) != 0U) || (fil->fs->id != fil->id)) {
+ res = FR_INVALID_OBJECT;
+ }
+ else {
+ ENTER_FF(fil->fs); /* Lock file system */
+
+ if ((disk_status(fil->fs->drv) & STA_NOINIT) != (BYTE)0U) {
+ res = FR_NOT_READY;
+ }
+ else {
+ res = FR_OK;
+ }
+ }
+ return res;
+}
+
+
+
+
+/*--------------------------------------------------------------------------
+
+ Public Functions
+
+--------------------------------------------------------------------------*/
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Mount/Unmount a Logical Drive */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_mount (
+ FATFS* fs, /* Pointer to the file system object (NULL:unmount)*/
+ const TCHAR* path, /* Logical drive number to be mounted/unmounted */
+ BYTE opt /* 0:Do not mount (delayed mount), 1:Mount immediately */
+)
+{
+ FATFS *cfs;
+ s32 vol;
+ FRESULT res;
+ const TCHAR *rp = path;
+
+
+ vol = get_ldnumber(&rp);
+ if (vol < 0) {return FR_INVALID_DRIVE;}
+ cfs = FatFs[vol]; /* Pointer to fs object */
+
+ if (cfs != 0U) {
+#if _FS_LOCK
+ clear_lock(cfs);
+#endif
+#if _FS_REENTRANT /* Discard sync object of the current volume */
+ if ((!ff_del_syncobj(cfs->sobj)) != 0U) {
+ return FR_INT_ERR;
+ }
+#endif
+ cfs->fs_type = 0U; /* Clear old fs object */
+ }
+
+ if (fs != 0U) {
+ fs->fs_type = 0U; /* Clear new fs object */
+#if _FS_REENTRANT /* Create sync object for the new volume */
+ if ((!ff_cre_syncobj((BYTE)vol, &fs->sobj)) != 0U) {
+ return FR_INT_ERR;
+ }
+#endif
+ }
+ FatFs[vol] = fs; /* Register new fs object */
+
+ if (((!fs) != 0U) || (opt != 1U)) {
+ return FR_OK; /* Do not mount now, it will be mounted later */
+ }
+
+ res = find_volume(&fs, &path, 0U); /* Force mounted the volume */
+ LEAVE_FF(fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Open or Create a File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_open (
+ FIL* fp, /* Pointer to the blank file object */
+ const TCHAR* path, /* Pointer to the file name */
+ BYTE mode /* Access mode and file open mode flags */
+)
+{
+ FRESULT res;
+ DIR dj = {0};
+ BYTE *dir;
+ DEF_NAMEBUF;
+
+
+ if ((!fp) != 0U) {
+ return FR_INVALID_OBJECT;
+ }
+ fp->fs = NULL; /* Clear file object */
+
+ /* Get logical drive number */
+#if !_FS_READONLY
+ mode &= FA_READ | FA_WRITE | FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW;
+ res = find_volume(&dj.fs, &path, (BYTE)(mode & ~FA_READ));
+#else
+ mode &= FA_READ;
+ res = find_volume(&dj.fs, &path, 0U);
+#endif
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ dir = dj.dir;
+#if !_FS_READONLY /* R/W configuration */
+ if (res == FR_OK) {
+ if ((!dir) != 0U) {/* Default directory itself */
+ res = FR_INVALID_NAME;
+ }
+#if _FS_LOCK
+ else
+ res = chk_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
+#endif
+ }
+ /* Create or Open a file */
+ if ((mode & (FA_CREATE_ALWAYS | FA_OPEN_ALWAYS | FA_CREATE_NEW)) != (BYTE)0U) {
+ DWORD dw, cl;
+
+ if (res != FR_OK) { /* No file, create new */
+ if (res == FR_NO_FILE) { /* There is no file to open, create a new entry */
+#if _FS_LOCK
+ res = enq_lock() ? dir_register(&dj) : FR_TOO_MANY_OPEN_FILES;
+#else
+ res = dir_register(&dj);
+#endif
+ }
+ mode |= FA_CREATE_ALWAYS; /* File is created */
+ dir = dj.dir; /* New entry */
+ }
+ else { /* Any object is already existing */
+ if ((*(dir+DIR_Attr) & (AM_RDO | AM_DIR)) != 0U) { /* Cannot overwrite it (R/O or DIR) */
+ res = FR_DENIED;
+ } else {
+ if ((mode & FA_CREATE_NEW) != (BYTE)0U) { /* Cannot create as new file */
+ res = FR_EXIST;
+ }
+ }
+ }
+ if ((res == FR_OK) && ((mode & FA_CREATE_ALWAYS) != (BYTE)0U)) { /* Truncate it if overwrite mode */
+ dw = get_fattime(); /* Created time */
+ ST_DWORD(dir+DIR_CrtTime, dw);
+ (*(dir+DIR_Attr)) = 0U; /* Reset attribute */
+ ST_DWORD(dir+DIR_FileSize, 0); /* size = 0 */
+ cl = ld_clust(dj.fs, dir); /* Get start cluster */
+ st_clust(dir, 0U); /* cluster = 0 */
+ dj.fs->wflag = 1U;
+ if (cl != (DWORD)0U) { /* Remove the cluster chain if exist */
+ dw = dj.fs->winsect;
+ res = remove_chain(dj.fs, cl);
+ if (res == FR_OK) {
+ dj.fs->last_clust = cl - 1; /* Reuse the cluster hole */
+ res = move_window(dj.fs, dw);
+ }
+ }
+ }
+ }
+ else { /* Open an existing file */
+ if (res == FR_OK) { /* Follow succeeded */
+ if ((*(dir+DIR_Attr) & AM_DIR) != 0U) { /* It is a directory */
+ res = FR_NO_FILE;
+ } else {
+ if (((mode & FA_WRITE) != 0U) && (((*(dir+DIR_Attr)) & AM_RDO) != 0U)) {/* R/O violation */
+ res = FR_DENIED;
+ }
+ }
+ }
+ }
+ if (res == FR_OK) {
+ if ((mode & FA_CREATE_ALWAYS) != 0U) { /* Set file change flag if created or overwritten */
+ mode |= FA__WRITTEN;
+ }
+ fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */
+ fp->dir_ptr = dir;
+#if _FS_LOCK
+ fp->lockid = inc_lock(&dj, (mode & ~FA_READ) ? 1 : 0);
+ if ((!fp->lockid) != 0U) {
+ res = FR_INT_ERR;
+ }
+#endif
+ }
+
+#else /* R/O configuration */
+ if (res == FR_OK) { /* Follow succeeded */
+ dir = dj.dir;
+ if ((!dir) != 0U) { /* Current directory itself */
+ res = FR_INVALID_NAME;
+ } else {
+ if (((*(dir+DIR_Attr)) & AM_DIR) != 0U) {/* It is a directory */
+ res = FR_NO_FILE;
+ }
+ }
+ }
+#endif
+ FREE_BUF();
+
+ if (res == FR_OK) {
+ fp->flag = mode; /* File access mode */
+ fp->err = 0U; /* Clear error flag */
+ fp->sclust = ld_clust(dj.fs, dir); /* File start cluster */
+ fp->fsize = LD_DWORD(dir+DIR_FileSize); /* File size */
+ fp->fptr = 0U; /* File pointer */
+ fp->dsect = 0U;
+#if _USE_FASTSEEK
+ fp->cltbl = 0; /* Normal seek mode */
+#endif
+ fp->fs = dj.fs; /* Validate file object */
+ fp->id = fp->fs->id;
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_read (
+ FIL* fp, /* Pointer to the file object */
+ void* buff, /* Pointer to data buffer */
+ UINT btr, /* Number of bytes to read */
+ UINT* br /* Pointer to number of bytes read */
+)
+{
+ FRESULT res;
+ DWORD clst, sect, remain;
+ UINT rcnt, cc;
+ BYTE csect, *rbuff = (BYTE*)(void *)buff;
+
+
+ *br = 0U; /* Clear read byte counter */
+
+ res = validate(fp); /* Check validity */
+ if (res != FR_OK) {
+ LEAVE_FF(fp->fs, res);
+ }
+ if (fp->err != (BYTE)0U) { /* Check error */
+ LEAVE_FF(fp->fs, (FRESULT)fp->err);
+ }
+ if ((!(fp->flag & FA_READ)) != 0U) { /* Check access mode */
+ LEAVE_FF(fp->fs, FR_DENIED);
+ }
+ remain = fp->fsize - fp->fptr;
+ if (btr > (UINT)remain) {
+ btr = (UINT)remain; /* Truncate btr by remaining bytes */
+ }
+ while(btr != (UINT)0U) { /* Repeat until all data read */
+
+ if ((fp->fptr % SS(fp->fs)) == 0U) { /* On the sector boundary? */
+ csect = (BYTE)(((BYTE)((DWORD)fp->fptr / (DWORD)SS(fp->fs))) & (BYTE)(fp->fs->csize - (BYTE)1U)); /* Sector offset in the cluster */
+ if ((!csect) != 0U) { /* On the cluster boundary? */
+ if (fp->fptr == 0U) { /* On the top of the file? */
+ clst = fp->sclust; /* Follow from the origin */
+ } else { /* Middle or end of the file */
+#if _USE_FASTSEEK
+ if (fp->cltbl) {
+ clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
+ }
+ else
+#endif
+ clst = get_fat(fp->fs, fp->clust); /* Follow cluster chain on the FAT */
+ }
+ if (clst < 2U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ if (clst == 0xFFFFFFFFU) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->clust = clst; /* Update current cluster */
+ }
+ sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
+ if ((!sect) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ sect += csect;
+ cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */
+ if (cc != 0U) { /* Read maximum contiguous sectors directly */
+ if ((csect + cc) > fp->fs->csize) { /* Clip at cluster boundary */
+ cc = (UINT)(fp->fs->csize - csect);
+ }
+ if (disk_read(fp->fs->drv, rbuff, sect, (BYTE)cc) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+#if !_FS_READONLY && _FS_MINIMIZE <= 2 /* Replace one of the read sectors with cached data if it contains a dirty sector */
+#if _FS_TINY
+ if ((fp->fs->wflag != 0U) && (((fp->fs->winsect - sect) < cc) != 0U)) {
+ mem_cpy(rbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), fp->fs->win, SS(fp->fs));
+ }
+#else
+ if (((fp->flag & FA__DIRTY) != (BYTE)0U) && ((fp->dsect - sect) < cc)) {
+ mem_cpy(rbuff + ((fp->dsect - sect) * SS(fp->fs)), fp->buf, SS(fp->fs));
+ }
+#endif
+#endif
+ rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
+ rbuff += rcnt; fp->fptr += rcnt; *br += rcnt;btr -= rcnt;
+ continue;
+ }
+#if !_FS_TINY
+ if (fp->dsect != sect) { /* Load data sector if not in cache */
+#if !_FS_READONLY
+ if ((fp->flag & FA__DIRTY) != (BYTE)0U) { /* Write-back dirty sector cache */
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1U) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+ if (disk_read(fp->fs->drv, fp->buf, sect, 1U) != RES_OK) { /* Fill sector cache */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ }
+#endif
+ fp->dsect = sect;
+ }
+ rcnt = (UINT)SS(fp->fs) - (UINT)(fp->fptr % SS(fp->fs)); /* Get partial sector data from sector buffer */
+ if (rcnt > btr) {
+ rcnt = btr;
+ }
+#if _FS_TINY
+ if (move_window(fp->fs, fp->dsect) != 0U) { /* Move sector window */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ mem_cpy(rbuff, &fp->fs->win[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
+#else
+ mem_cpy(rbuff, (void *)&fp->buf[fp->fptr % SS(fp->fs)], rcnt); /* Pick partial sector */
+#endif
+ rbuff += rcnt; fp->fptr += rcnt; *br += rcnt;btr -= rcnt;
+ }
+
+ LEAVE_FF(fp->fs, FR_OK);
+}
+
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Write File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_write (
+ FIL* fp, /* Pointer to the file object */
+ const void *buff, /* Pointer to the data to be written */
+ UINT btw, /* Number of bytes to write */
+ UINT* bw /* Pointer to number of bytes written */
+)
+{
+ FRESULT res;
+ DWORD clst, sect;
+ UINT wcnt, cc;
+ const BYTE *wbuff = buff;
+ BYTE csect;
+ UINT LocBtw = btw;
+
+ *bw = 0U; /* Clear write byte counter */
+
+ res = validate(fp); /* Check validity */
+ if (res != FR_OK) {
+ LEAVE_FF(fp->fs, res);
+ }
+ if (fp->err != (BYTE)0U) { /* Check error */
+ LEAVE_FF(fp->fs, (FRESULT)fp->err);
+ }
+ if ((!(fp->flag & FA_WRITE)) != 0U) { /* Check access mode */
+ LEAVE_FF(fp->fs, FR_DENIED);
+ }
+ if ((fp->fptr + LocBtw) < fp->fptr) {
+ LocBtw = 0U; /* File size cannot reach 4GB */
+ }
+
+ while(LocBtw != (UINT)0U) { /* Repeat until all data written */
+
+ if ((fp->fptr % SS(fp->fs)) == 0U) { /* On the sector boundary? */
+ csect = (BYTE)((fp->fptr / ((DWORD)SS(fp->fs))) & (DWORD)(fp->fs->csize - 1U)); /* Sector offset in the cluster */
+ if ((!csect) != 0U) { /* On the cluster boundary? */
+ if (fp->fptr == 0U) { /* On the top of the file? */
+ clst = fp->sclust; /* Follow from the origin */
+ if (clst == 0U) { /* When no cluster is allocated, */
+ clst = create_chain(fp->fs, 0U); /* Create a new cluster chain */
+ }
+ } else { /* Middle or end of the file */
+#if _USE_FASTSEEK
+ if (fp->cltbl)
+ clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
+ else
+#endif
+ clst = create_chain(fp->fs, fp->clust); /* Follow or stretch cluster chain on the FAT */
+ }
+ if (clst == 0U) {
+ break; /* Could not allocate a new cluster (disk full) */
+ }
+ if (clst == 1U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ if (clst == 0xFFFFFFFFU) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->clust = clst; /* Update current cluster */
+ if (fp->sclust == 0U) {
+ fp->sclust = clst; /* Set start cluster if the first write */
+ }
+ }
+#if _FS_TINY
+ if (fp->fs->winsect == fp->dsect && (sync_window(fp->fs) != 0U)) { /* Write-back sector cache */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+#else
+ if ((fp->flag & FA__DIRTY) != (BYTE)0U) { /* Write-back sector cache */
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1U) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+ sect = clust2sect(fp->fs, fp->clust); /* Get current sector */
+ if ((!sect) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ sect += csect;
+ cc = LocBtw / SS(fp->fs); /* When remaining bytes >= sector size, */
+ if (cc != 0U) { /* Write maximum contiguous sectors directly */
+ if ((csect + cc) > fp->fs->csize) { /* Clip at cluster boundary */
+ cc = (UINT)(fp->fs->csize - csect);
+ }
+ if (disk_write(fp->fs->drv, wbuff, sect, (BYTE)cc) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+#if _FS_MINIMIZE <= 2
+#if _FS_TINY
+ if ((fp->fs->winsect - sect) < cc) { /* Refill sector cache if it gets invalidated by the direct write */
+ mem_cpy(fp->fs->win, wbuff + ((fp->fs->winsect - sect) * SS(fp->fs)), SS(fp->fs));
+ fp->fs->wflag = 0U;
+ }
+#else
+ if ((fp->dsect - sect) < cc) { /* Refill sector cache if it gets invalidated by the direct write */
+ mem_cpy(fp->buf, wbuff + ((fp->dsect - sect) * SS(fp->fs)), SS(fp->fs));
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+#endif
+ wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */
+ wbuff += wcnt; fp->fptr += (DWORD)wcnt; *bw += wcnt; LocBtw -= wcnt;
+ continue;
+ }
+#if _FS_TINY
+ if (fp->fptr >= fp->fsize) { /* Avoid silly cache filling at growing edge */
+ if (sync_window(fp->fs) != 0U) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->fs->winsect = sect;
+ }
+#else
+ if (fp->dsect != sect) { /* Fill sector cache with file data */
+ if (((fp->fptr < fp->fsize) != 0U) &&
+ (disk_read(fp->fs->drv, fp->buf, sect, 1U) != RES_OK)) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ }
+#endif
+ fp->dsect = sect;
+ }
+ wcnt = (((UINT)SS(fp->fs)) - ((UINT)fp->fptr % SS(fp->fs)));/* Put partial sector into file I/O buffer */
+ if (wcnt > LocBtw) {
+ wcnt = LocBtw;
+ }
+#if _FS_TINY
+ if (move_window(fp->fs, fp->dsect) != 0U) { /* Move sector window */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ mem_cpy((void *)&fp->fs->win[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
+ fp->fs->wflag = 1U;
+#else
+ mem_cpy((void *)&fp->buf[fp->fptr % SS(fp->fs)], wbuff, wcnt); /* Fit partial sector */
+ fp->flag |= FA__DIRTY;
+#endif
+ wbuff += wcnt; fp->fptr += (DWORD)wcnt; *bw += wcnt; LocBtw -= wcnt;
+ }
+
+ if (fp->fptr > fp->fsize) {
+ fp->fsize = fp->fptr; /* Update file size if needed */
+ }
+ fp->flag |= FA__WRITTEN; /* Set file change flag */
+
+ LEAVE_FF(fp->fs, FR_OK);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Synchronize the File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_sync (
+ FIL* fp /* Pointer to the file object */
+)
+{
+ FRESULT res;
+ DWORD tm;
+ BYTE *directory;
+
+
+ res = validate(fp); /* Check validity of the object */
+ if (res == FR_OK) {
+ if ((fp->flag & FA__WRITTEN) != 0U) { /* Has the file been written? */
+ /* Write-back dirty buffer */
+#if !_FS_TINY
+ if ((fp->flag & FA__DIRTY) != (BYTE)0U) {
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1U) != RES_OK) {
+ LEAVE_FF(fp->fs, FR_DISK_ERR);
+ }
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+ /* Update the directory entry */
+ res = move_window(fp->fs, fp->dir_sect);
+ if (res == FR_OK) {
+ directory = fp->dir_ptr;
+ *(directory+DIR_Attr) |= AM_ARC; /* Set archive bit */
+ ST_DWORD(directory+DIR_FileSize, fp->fsize); /* Update file size */
+ st_clust(directory, fp->sclust); /* Update start cluster */
+ tm = get_fattime(); /* Update updated time */
+ ST_DWORD(directory+DIR_WrtTime, tm);
+ ST_WORD(directory+DIR_LstAccDate, 0);
+ fp->flag &= ~FA__WRITTEN;
+ fp->fs->wflag = 1U;
+ res = sync_fs(fp->fs);
+ }
+ }
+ }
+
+ LEAVE_FF(fp->fs, res);
+}
+
+#endif /* !_FS_READONLY */
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Close File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_close (
+ FIL *fp /* Pointer to the file object to be closed */
+)
+{
+ FRESULT res;
+
+
+#if !_FS_READONLY
+ res = f_sync(fp); /* Flush cached data */
+ if (res == FR_OK)
+#endif
+ {
+ res = validate(fp); /* Lock volume */
+ if (res == FR_OK) {
+#if _FS_REENTRANT
+ FATFS *fs = fp->fs;
+#endif
+#if _FS_LOCK
+ res = dec_lock(fp->lockid); /* Decrement file open counter */
+ if (res == FR_OK)
+#endif
+ fp->fs = NULL; /* Invalidate file object */
+#if _FS_REENTRANT
+ unlock_fs(fs, FR_OK); /* Unlock volume */
+#endif
+ }
+ }
+ return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Current Directory or Current Drive, Get Current Directory */
+/*-----------------------------------------------------------------------*/
+
+#if _FS_RPATH >= 1
+#if _VOLUMES >= 2
+FRESULT f_chdrive (
+ const TCHAR* path /* Drive number */
+)
+{
+ int vol;
+
+
+ vol = get_ldnumber(&path);
+ if (vol < 0) {
+ return FR_INVALID_DRIVE;
+ }
+
+ CurrVol = (BYTE)vol;
+
+ return FR_OK;
+}
+#endif
+
+
+FRESULT f_chdir (
+ const TCHAR* path /* Pointer to the directory path */
+)
+{
+ FRESULT res;
+ DIR dj;
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 0);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the path */
+ FREE_BUF();
+ if (res == FR_OK) { /* Follow completed */
+ if (!dj.dir) {
+ dj.fs->cdir = dj.sclust; /* Start directory itself */
+ } else {
+ if (dj.dir[DIR_Attr] & AM_DIR) { /* Reached to the directory */
+ dj.fs->cdir = ld_clust(dj.fs, dj.dir);
+ }
+ else {
+ res = FR_NO_PATH; /* Reached but a file */
+ }
+ }
+ }
+ if (res == FR_NO_FILE) {
+ res = FR_NO_PATH;
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+#if _FS_RPATH >= 2
+FRESULT f_getcwd (
+ TCHAR* buff, /* Pointer to the directory path */
+ UINT len /* Size of path */
+)
+{
+ FRESULT res;
+ DIR dj;
+ UINT i, n;
+ DWORD ccl;
+ TCHAR *tp;
+ FILINFO fno;
+ DEF_NAMEBUF;
+
+
+ *buff = 0;
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, (const TCHAR**)&buff, 0); /* Get current volume */
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ i = len; /* Bottom of buffer (directory stack base) */
+ dj.sclust = dj.fs->cdir; /* Start to follow upper directory from current directory */
+ while ((ccl = dj.sclust) != 0) { /* Repeat while current directory is a sub-directory */
+ res = dir_sdi(&dj, 1); /* Get parent directory */
+ if (res != FR_OK) {
+ break;
+ }
+ res = dir_read(&dj, 0);
+ if (res != FR_OK) {
+ break;
+ }
+ dj.sclust = ld_clust(dj.fs, dj.dir); /* Goto parent directory */
+ res = dir_sdi(&dj, 0);
+ if (res != FR_OK) {
+ break;
+ }
+ do { /* Find the entry links to the child directory */
+ res = dir_read(&dj, 0);
+ if (res != FR_OK) {
+ break;
+ }
+ if (ccl == ld_clust(dj.fs, dj.dir)) {
+ break; /* Found the entry */
+ }
+ res = dir_next(&dj, 0);
+ } while (res == FR_OK);
+ if (res == FR_NO_FILE) {
+ res = FR_INT_ERR;/* It cannot be 'not found'. */
+ }
+ if (res != FR_OK) {
+ break;
+ }
+#if _USE_LFN
+ fno.lfname = buff;
+ fno.lfsize = i;
+#endif
+ get_fileinfo(&dj, &fno); /* Get the directory name and push it to the buffer */
+ tp = fno.fname;
+#if _USE_LFN
+ if (*buff) {
+ tp = buff;
+ }
+#endif
+ for (n = 0; tp[n]; n++) ;
+ if (i < n + 3) {
+ res = FR_NOT_ENOUGH_CORE; break;
+ }
+ while (n) buff[--i] = tp[--n];
+ buff[--i] = '/';
+ }
+ tp = buff;
+ if (res == FR_OK) {
+#if _VOLUMES >= 2
+ *tp++ = '0' + CurrVol; /* Put drive number */
+ *tp++ = ':';
+#endif
+ if (i == len) { /* Root-directory */
+ *tp++ = '/';
+ } else { /* Sub-directroy */
+ do /* Add stacked path str */
+ *tp++ = buff[i++];
+ while (i < len);
+ }
+ }
+ *tp = 0;
+ FREE_BUF();
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+#endif /* _FS_RPATH >= 2 */
+#endif /* _FS_RPATH >= 1 */
+
+
+
+#if _FS_MINIMIZE <= 2
+/*-----------------------------------------------------------------------*/
+/* Seek File R/W Pointer */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_lseek (
+ FIL* fp, /* Pointer to the file object */
+ DWORD ofs /* File pointer from top of file */
+)
+{
+ FRESULT res;
+ DWORD LocOfs = ofs;
+
+ res = validate(fp); /* Check validity of the object */
+ if (res != FR_OK) {
+ LEAVE_FF(fp->fs, res);
+ }
+ if (fp->err != (BYTE)0U) { /* Check error */
+ LEAVE_FF(fp->fs, (FRESULT)fp->err);
+ }
+
+#if _USE_FASTSEEK
+ if (fp->cltbl) { /* Fast seek */
+ DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl;
+
+ if (ofs == CREATE_LINKMAP) { /* Create CLMT */
+ tbl = fp->cltbl;
+ tlen = *tbl++; ulen = 2; /* Given table size and required table size */
+ cl = fp->sclust; /* Top of the chain */
+ if (cl) {
+ do {
+ /* Get a fragment */
+ tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */
+ do {
+ pcl = cl; ncl++;
+ cl = get_fat(fp->fs, cl);
+ if (cl <= 1) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ if (cl == 0xFFFFFFFF) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ } while (cl == pcl + 1);
+ if (ulen <= tlen) { /* Store the length and top of the fragment */
+ *tbl++ = ncl; *tbl++ = tcl;
+ }
+ } while (cl < fp->fs->n_fatent); /* Repeat until end of chain */
+ }
+ *fp->cltbl = ulen; /* Number of items used */
+ if (ulen <= tlen) {
+ *tbl = 0; /* Terminate table */
+ }
+ else {
+ res = FR_NOT_ENOUGH_CORE; /* Given table size is smaller than required */
+ }
+
+ } else { /* Fast seek */
+ if (LocOfs > fp->fsize) { /* Clip offset at the file size */
+ LocOfs = fp->fsize;
+ }
+ fp->fptr = LocOfs; /* Set file pointer */
+ if (LocOfs) {
+ fp->clust = clmt_clust(fp, ofs - 1);
+ dsc = clust2sect(fp->fs, fp->clust);
+ if ((!dsc) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ dsc += (LocOfs - 1) / SS(fp->fs) & (fp->fs->csize - 1);
+ if (((fp->fptr % SS(fp->fs)) != 0U)&& ((dsc != fp->dsect) != 0U)) { /* Refill sector cache if needed */
+#if !_FS_TINY
+#if !_FS_READONLY
+ if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+ if (disk_read(fp->fs->drv, fp->buf, dsc, 1) != RES_OK) { /* Load current sector */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+#endif
+ fp->dsect = dsc;
+ }
+ }
+ }
+ } else
+#endif
+
+ /* Normal Seek */
+ {
+ DWORD clst, bcs, nsect, ifptr;
+
+ if (((LocOfs > fp->fsize) != 0U) /* In read-only mode, clip offset with the file size */
+#if !_FS_READONLY
+ && ((!(fp->flag & FA_WRITE)) != 0U)
+#endif
+ ) {
+ LocOfs = fp->fsize;
+ }
+
+ ifptr = fp->fptr;
+ fp->fptr = 0U; nsect = 0U;
+ if (LocOfs != (DWORD)0U) {
+ bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */
+ if ((ifptr > 0U) &&
+ ((((LocOfs - 1) / bcs) >= ((ifptr - 1) / bcs)) != 0U)) { /* When seek to same or following cluster, */
+ fp->fptr = (ifptr - 1) & ~(bcs - (DWORD)1); /* start from the current cluster */
+ LocOfs -= fp->fptr;
+ clst = fp->clust;
+ } else { /* When seek to back cluster, */
+ clst = fp->sclust; /* start from the first cluster */
+#if !_FS_READONLY
+ if (clst == 0U) { /* If no cluster chain, create a new chain */
+ clst = create_chain(fp->fs, 0U);
+ if (clst == 1U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ if (clst == 0xFFFFFFFFU) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->sclust = clst;
+ }
+#endif
+ fp->clust = clst;
+ }
+ if (clst != 0U) {
+ while (LocOfs > bcs) { /* Cluster following loop */
+#if !_FS_READONLY
+ if ((fp->flag & FA_WRITE) != (BYTE)0U) { /* Check if in write mode or not */
+ clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */
+ if (clst == 0U) { /* When disk gets full, clip file size */
+ LocOfs = bcs; break;
+ }
+ } else {
+#endif
+ clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */
+ }
+ if (clst == 0xFFFFFFFFU) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ if ((clst <= 1U) || ((clst >= fp->fs->n_fatent) != 0U)) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ fp->clust = clst;
+ fp->fptr += bcs;
+ LocOfs -= bcs;
+ }
+ fp->fptr += LocOfs;
+ if ((LocOfs % SS(fp->fs)) != (UINT)0U) {
+ nsect = clust2sect(fp->fs, clst); /* Current sector */
+ if ((!nsect) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ nsect += LocOfs / SS(fp->fs);
+ }
+ }
+ }
+ if (((fp->fptr % SS(fp->fs)) != 0U) && ((nsect != fp->dsect) != 0U)) { /* Fill sector cache if needed */
+#if !_FS_TINY
+#if !_FS_READONLY
+ if ((fp->flag & FA__DIRTY) != (BYTE)0U) { /* Write-back dirty sector cache */
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1U) != RES_OK) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->flag &= ~FA__DIRTY;
+ }
+#endif
+ if (disk_read(fp->fs->drv, fp->buf, nsect, 1U) != RES_OK) { /* Fill sector cache */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+#endif
+ fp->dsect = nsect;
+ }
+#if !_FS_READONLY
+ if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */
+ fp->fsize = fp->fptr;
+ fp->flag |= FA__WRITTEN;
+ }
+#endif
+ }
+
+ LEAVE_FF(fp->fs, res);
+}
+
+
+
+#if _FS_MINIMIZE <= 1
+/*-----------------------------------------------------------------------*/
+/* Create a Directory Object */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_opendir (
+ DIR* dp, /* Pointer to directory object to create */
+ const TCHAR* path /* Pointer to the directory path */
+)
+{
+ FRESULT res;
+ FATFS* fs;
+ DEF_NAMEBUF;
+
+
+ if ((!dp) != 0U) {
+ res = FR_INVALID_OBJECT;
+ }
+ else {
+ /* Get logical drive number */
+ res = find_volume(&fs, &path, 0U);
+ if (res == FR_OK) {
+ dp->fs = fs;
+ INIT_BUF(*dp);
+ res = follow_path(dp, path); /* Follow the path to the directory */
+ FREE_BUF();
+ if (res == FR_OK) { /* Follow completed */
+ if (dp->dir != NULL) { /* It is not the origin directory itself */
+ if ((dp->dir[DIR_Attr] & AM_DIR) != (BYTE)0U) {/* The object is a sub directory */
+ dp->sclust = ld_clust(fs, dp->dir);
+ }
+ else { /* The object is a file */
+ res = FR_NO_PATH;
+ }
+ }
+ if (res == FR_OK) {
+ dp->id = fs->id;
+ res = dir_sdi(dp, 0U); /* Rewind directory */
+#if _FS_LOCK
+ if (res == FR_OK) {
+ if (dp->sclust) {
+ dp->lockid = inc_lock(dp, 0); /* Lock the sub directory */
+ if (!dp->lockid)
+ res = FR_TOO_MANY_OPEN_FILES;
+ } else {
+ dp->lockid = 0; /* Root directory need not to be locked */
+ }
+ }
+#endif
+ }
+ }
+ if (res == FR_NO_FILE) {
+ res = FR_NO_PATH;
+ }
+ }
+ if (res != FR_OK) {
+ dp->fs = NULL; /* Invalidate the directory object if function faild */
+ }
+
+ }
+ LEAVE_FF(fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Close Directory */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_closedir (
+ DIR *dp /* Pointer to the directory object to be closed */
+)
+{
+ FRESULT res;
+
+
+ res = validate(dp);
+ if (res == FR_OK) {
+#if _FS_REENTRANT
+ FATFS *fs = dp->fs;
+#endif
+#if _FS_LOCK
+ if (dp->lockid) { /* Decrement sub-directory open counter */
+ res = dec_lock(dp->lockid);
+ }
+ if (res == FR_OK)
+#endif
+ dp->fs = NULL; /* Invalidate directory object */
+#if _FS_REENTRANT
+ unlock_fs(fs, FR_OK); /* Unlock volume */
+#endif
+ }
+ return res;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Directory Entries in Sequence */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_readdir (
+ DIR* dp, /* Pointer to the open directory object */
+ FILINFO* fno /* Pointer to file information to return */
+)
+{
+ FRESULT res;
+ DEF_NAMEBUF;
+
+
+ res = validate(dp); /* Check validity of the object */
+ if (res == FR_OK) {
+ if ((!fno) != 0U) {
+ res = dir_sdi(dp, 0U); /* Rewind the directory object */
+ } else {
+ INIT_BUF(*dp);
+ res = dir_read(dp, 0); /* Read an item */
+ if (res == FR_NO_FILE) { /* Reached end of directory */
+ dp->sect = 0U;
+ res = FR_OK;
+ }
+ if (res == FR_OK) { /* A valid entry is found */
+ get_fileinfo(dp, fno); /* Get the object information */
+ res = dir_next(dp, 0); /* Increment index for next */
+ if (res == FR_NO_FILE) {
+ dp->sect = 0U;
+ res = FR_OK;
+ }
+ }
+ FREE_BUF();
+ }
+ }
+
+ LEAVE_FF(dp->fs, res);
+}
+
+
+
+#if _FS_MINIMIZE == 0
+/*-----------------------------------------------------------------------*/
+/* Get File Status */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_stat (
+ const TCHAR* path, /* Pointer to the file path */
+ FILINFO* fno /* Pointer to file information to return */
+)
+{
+ FRESULT res;
+ DIR dj = {0};
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 0U);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ if (res == FR_OK) { /* Follow completed */
+ if (dj.dir != NULL) { /* Found an object */
+ if (fno != NULL) {
+ get_fileinfo(&dj, fno);
+ }
+ } else { /* It is root directory */
+ res = FR_INVALID_NAME;
+ }
+ }
+ FREE_BUF();
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Get Number of Free Clusters */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_getfree (
+ const TCHAR* path, /* Path name of the logical drive number */
+ DWORD* nclst, /* Pointer to a variable to return number of free clusters */
+ FATFS** fatfsys /* Pointer to return pointer to corresponding file system object */
+)
+{
+ FRESULT res;
+ FATFS *fs;
+ DWORD n, clst, sect, stat;
+ UINT i;
+ BYTE fat, *p;
+
+
+ /* Get logical drive number */
+ res = find_volume(fatfsys, &path, 0U);
+ fs = *fatfsys;
+ if (res == FR_OK) {
+ /* If free_clust is valid, return it without full cluster scan */
+ if (fs->free_clust <= (fs->n_fatent - 2)) {
+ *nclst = fs->free_clust;
+ } else {
+ /* Get number of free clusters */
+ fat = fs->fs_type;
+ n = 0U;
+ if (fat == FS_FAT12) {
+ clst = (DWORD)2;
+ do {
+ stat = get_fat(fs, clst);
+ if (stat == (DWORD)0xFFFFFFFFU) { res = FR_DISK_ERR; break; }
+ if (stat == 1U) { res = FR_INT_ERR; break; }
+ if (stat == 0U) { n++; }
+ clst += (DWORD)1;
+ } while (clst < fs->n_fatent);
+ } else {
+ clst = fs->n_fatent;
+ sect = fs->fatbase;
+ i = 0U; p = 0U;
+ do {
+ if (i == (UINT)0U) {
+ res = move_window(fs, sect);
+ sect += (DWORD)1;
+ if (res != FR_OK) {
+ break;
+ }
+ p = fs->win;
+ i = SS(fs);
+ }
+ if (fat == FS_FAT16) {
+ if (LD_WORD(p) == 0U) {
+ n++;
+ }
+ p += 2; i -= (UINT)2;
+ } else {
+ if ((LD_DWORD(p) & 0x0FFFFFFFU) == 0U) {
+ n++;
+ }
+ p += 4; i -= (UINT)4;
+ }
+ clst -= (DWORD)1;
+ } while (clst != (DWORD)0U);
+ }
+ fs->free_clust = n;
+ fs->fsi_flag |= 1U;
+ *nclst = n;
+ }
+ }
+ LEAVE_FF(fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Truncate File */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_truncate (
+ FIL* fp /* Pointer to the file object */
+)
+{
+ FRESULT res;
+ DWORD ncl;
+
+
+ res = validate(fp); /* Check validity of the object */
+ if (res == FR_OK) {
+ if (fp->err != (BYTE) 0U) { /* Check error */
+ res = (FRESULT)fp->err;
+ } else {
+ if ((!(fp->flag & FA_WRITE)) != 0U) { /* Check access mode */
+ res = FR_DENIED;
+ }
+ }
+ }
+ if (res == FR_OK) {
+ if (fp->fsize > fp->fptr) {
+ fp->fsize = fp->fptr; /* Set file size to current R/W point */
+ fp->flag |= FA__WRITTEN;
+ if (fp->fptr == 0U) { /* When set file size to zero, remove entire cluster chain */
+ res = remove_chain(fp->fs, fp->sclust);
+ fp->sclust = 0U;
+ } else { /* When truncate a part of the file, remove remaining clusters */
+ ncl = get_fat(fp->fs, fp->clust);
+ res = FR_OK;
+ if (ncl == (DWORD)0xFFFFFFFFU) {
+ res = FR_DISK_ERR;
+ }
+ if (ncl == 1U) {
+ res = FR_INT_ERR;
+ }
+ if ((res == FR_OK) && ((ncl < fp->fs->n_fatent) != 0U)) {
+ res = put_fat(fp->fs, fp->clust, 0x0FFFFFFFU);
+ if (res == FR_OK) {
+ res = remove_chain(fp->fs, ncl);
+ }
+ }
+ }
+#if !_FS_TINY
+ if ((res == FR_OK) && ((fp->flag & FA__DIRTY) != (BYTE)0U)) {
+ if (disk_write(fp->fs->drv, fp->buf, fp->dsect, 1U) != RES_OK) {
+ res = FR_DISK_ERR;
+ }
+ else {
+ fp->flag &= ~FA__DIRTY;
+ }
+ }
+#endif
+ }
+ if (res != FR_OK) {
+ fp->err = (FRESULT)res;
+ }
+ }
+
+ LEAVE_FF(fp->fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Delete a File or Directory */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_unlink (
+ const TCHAR* path /* Pointer to the file or directory path */
+)
+{
+ FRESULT res;
+ DIR dj = {0}, sdj = {0};
+ BYTE *dir;
+ DWORD dclst;
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 1U);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ if (_FS_RPATH && (res == FR_OK) && ((dj.fn[NS] & NS_DOT) != (BYTE)0U)) {
+ res = FR_INVALID_NAME; /* Cannot remove dot entry */
+ }
+#if _FS_LOCK
+ if (res == FR_OK) {
+ res = chk_lock(&dj, 2); /* Cannot remove open file */
+ }
+#endif
+ if (res == FR_OK) { /* The object is accessible */
+ dir = dj.dir;
+ if ((!dir) != 0U) {
+ res = FR_INVALID_NAME; /* Cannot remove the start directory */
+ } else {
+ if (((*(dir+DIR_Attr)) & AM_RDO) != (BYTE)0U) {
+ res = FR_DENIED; /* Cannot remove R/O object */
+ }
+ }
+ dclst = ld_clust(dj.fs, dir);
+ if ((res == FR_OK) && (((*(dir+DIR_Attr)) & AM_DIR) != (BYTE)0U)) { /* Is it a sub-dir? */
+ if (dclst < 2U) {
+ res = FR_INT_ERR;
+ } else {
+ mem_cpy(&sdj, &dj, sizeof (DIR)); /* Check if the sub-directory is empty or not */
+ sdj.sclust = dclst;
+ res = dir_sdi(&sdj, 2U); /* Exclude dot entries */
+ if (res == FR_OK) {
+ res = dir_read(&sdj, 0); /* Read an item */
+ if (res == FR_OK /* Not empty directory */
+#if _FS_RPATH
+ || dclst == dj.fs->cdir /* Current directory */
+#endif
+ ) {
+ res = FR_DENIED;
+ }
+ if (res == FR_NO_FILE) {
+ res = FR_OK; /* Empty */
+ }
+ }
+ }
+ }
+ if (res == FR_OK) {
+ res = dir_remove(&dj); /* Remove the directory entry */
+ if (res == FR_OK) {
+ if (dclst != (DWORD)0U) { /* Remove the cluster chain if exist */
+ res = remove_chain(dj.fs, dclst);
+ }
+ if (res == FR_OK) {
+ res = sync_fs(dj.fs);
+ }
+ }
+ }
+ }
+ FREE_BUF();
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create a Directory */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_mkdir (
+ const TCHAR* path /* Pointer to the directory path */
+)
+{
+ FRESULT res;
+ DIR dj = {0};
+ BYTE *dir, n;
+ DWORD dsc, dcl, pcl, tm = get_fattime();
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 1U);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ if (res == FR_OK) {
+ res = FR_EXIST; /* Any object with same name is already existing */
+ }
+ if (_FS_RPATH && (res == FR_NO_FILE) && ((dj.fn[NS] & NS_DOT) != (BYTE)0U)) {
+ res = FR_INVALID_NAME;
+ }
+ if (res == FR_NO_FILE) { /* Can create a new directory */
+ dcl = create_chain(dj.fs, 0U); /* Allocate a cluster for the new directory table */
+ res = FR_OK;
+ if (dcl == 0U) {
+ res = FR_DENIED; /* No space to allocate a new cluster */
+ }
+ if (dcl == 1U) {
+ res = FR_INT_ERR;
+ }
+ if (dcl == 0xFFFFFFFFU) {
+ res = FR_DISK_ERR;
+ }
+ if (res == FR_OK) { /* Flush FAT */
+ res = sync_window(dj.fs);
+ }
+ if (res == FR_OK) { /* Initialize the new directory table */
+ dsc = clust2sect(dj.fs, dcl);
+ dir = dj.fs->win;
+ mem_set(dir, 0, SS(dj.fs));
+ mem_set(dir, (s32)' ', 11U); /* Create "." entry */
+ (*(dir+DIR_Name)) = ((BYTE)'.');
+ (*(dir+DIR_Attr)) = AM_DIR;
+ ST_DWORD(dir+DIR_WrtTime, tm);
+ st_clust(dir, dcl);
+ mem_cpy(dir+SZ_DIR, dir, SZ_DIR); /* Create ".." entry */
+ (*(dir+SZ_DIR+1U)) = ((BYTE)'.'); pcl = dj.sclust;
+ if ((dj.fs->fs_type == FS_FAT32) && (pcl == dj.fs->dirbase)) {
+ pcl = 0U;
+ }
+ st_clust(dir+SZ_DIR, pcl);
+ n = dj.fs->csize;
+ for (; n; n--) { /* Write dot entries and clear following sectors */
+ dj.fs->winsect = dsc;
+ dsc += (DWORD)1;
+ dj.fs->wflag = 1U;
+ res = sync_window(dj.fs);
+ if (res != FR_OK) {
+ break;
+ }
+ mem_set(dir, 0, SS(dj.fs));
+ }
+ }
+ if (res == FR_OK) {
+ res = dir_register(&dj); /* Register the object to the directoy */
+ }
+ if (res != FR_OK) {
+ (void)remove_chain(dj.fs, dcl); /* Could not register, remove cluster chain */
+ } else {
+ dir = dj.dir;
+ (*(dir+DIR_Attr)) = AM_DIR; /* Attribute */
+ ST_DWORD(dir+DIR_WrtTime, tm); /* Created time */
+ st_clust(dir, dcl); /* Table start cluster */
+ dj.fs->wflag = 1U;
+ res = sync_fs(dj.fs);
+ }
+ }
+ FREE_BUF();
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Attribute */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_chmod (
+ const TCHAR* path, /* Pointer to the file path */
+ BYTE value, /* Attribute bits */
+ BYTE mask /* Attribute mask to change */
+)
+{
+ FRESULT res;
+ DIR dj = {0};
+ BYTE *dir;
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 1U);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ FREE_BUF();
+ if (_FS_RPATH && (res == FR_OK) && ((dj.fn[NS] & NS_DOT) != (BYTE)0U)) {
+ res = FR_INVALID_NAME;
+ }
+ if (res == FR_OK) {
+ dir = dj.dir;
+ if ((!dir) != 0U) { /* Is it a root directory? */
+ res = FR_INVALID_NAME;
+ } else { /* File or sub directory */
+ mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */
+ (*(dir+DIR_Attr)) = (value & mask) | ((*(dir+DIR_Attr)) & (BYTE)~mask); /* Apply attribute change */
+ dj.fs->wflag = 1U;
+ res = sync_fs(dj.fs);
+ }
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Change Timestamp */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_utime (
+ const TCHAR* path, /* Pointer to the file/directory name */
+ const FILINFO* fno /* Pointer to the time stamp to be set */
+)
+{
+ FRESULT res;
+ DIR dj = {0};
+ BYTE *dir;
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 1U);
+ if (res == FR_OK) {
+ INIT_BUF(dj);
+ res = follow_path(&dj, path); /* Follow the file path */
+ FREE_BUF();
+ if (_FS_RPATH && (res == FR_OK) && ((dj.fn[NS] & NS_DOT) != (BYTE)0U)) {
+ res = FR_INVALID_NAME;
+ }
+ if (res == FR_OK) {
+ dir = dj.dir;
+ if ((!dir) != 0U) { /* Root directory */
+ res = FR_INVALID_NAME;
+ } else { /* File or sub-directory */
+ ST_WORD(dir+DIR_WrtTime, fno->ftime);
+ ST_WORD(dir+DIR_WrtDate, fno->fdate);
+ dj.fs->wflag = 1U;
+ res = sync_fs(dj.fs);
+ }
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Rename File/Directory */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_rename (
+ const TCHAR* path_old, /* Pointer to the object to be renamed */
+ const TCHAR* path_new /* Pointer to the new name */
+)
+{
+ FRESULT res;
+ DIR djo = {0}, djn = {0};
+ BYTE buf[21] = {0};
+ BYTE *dir;
+ DWORD dw;
+ DEF_NAMEBUF;
+
+
+ /* Get logical drive number of the source object */
+ res = find_volume(&djo.fs, &path_old, 1U);
+ if (res == FR_OK) {
+ djn.fs = djo.fs;
+ INIT_BUF(djo);
+ res = follow_path(&djo, path_old); /* Check old object */
+ if (_FS_RPATH && (res == FR_OK) && ((djo.fn[NS] & NS_DOT) != (BYTE)0U)) {
+ res = FR_INVALID_NAME;
+ }
+#if _FS_LOCK
+ if (res == FR_OK) {
+ res = chk_lock(&djo, 2);
+ }
+#endif
+ if (res == FR_OK) { /* Old object is found */
+ if (djo.dir == NULL) { /* Is root dir? */
+ res = FR_NO_FILE;
+ } else {
+ mem_cpy(buf, djo.dir+DIR_Attr, 21U); /* Save the object information except name */
+ mem_cpy(&djn, &djo, sizeof (DIR)); /* Duplicate the directory object */
+ if (get_ldnumber(&path_new) >= 0) { /* Snip drive number off and ignore it */
+ res = follow_path(&djn, path_new); /* and check if new object is exist */
+ }
+ else {
+ res = FR_INVALID_DRIVE;
+ }
+ if (res == FR_OK) {
+ res = FR_EXIST; /* The new object name is already existing */
+ }
+ if (res == FR_NO_FILE) { /* Is it a valid path and no name collision? */
+/* Start critical section that any interruption can cause a cross-link */
+ res = dir_register(&djn); /* Register the new entry */
+ if (res == FR_OK) {
+ dir = djn.dir; /* Copy object information except name */
+ mem_cpy(dir+13, buf+2, 19U);
+ (*(dir+DIR_Attr)) = buf[0] | AM_ARC;
+ djo.fs->wflag = 1U;
+ if ((djo.sclust != djn.sclust) && (((*(dir+DIR_Attr)) & AM_DIR) != (BYTE)0U)) { /* Update .. entry in the directory if needed */
+ dw = clust2sect(djo.fs, ld_clust(djo.fs, dir));
+ if ((!dw) != 0U) {
+ res = FR_INT_ERR;
+ } else {
+ res = move_window(djo.fs, dw);
+ dir = djo.fs->win+SZ_DIR; /* .. entry */
+ if ((res == FR_OK) && ((*(dir+1)) == ((BYTE)'.'))) {
+ dw = ((djo.fs->fs_type == FS_FAT32) && (djn.sclust == djo.fs->dirbase)) ? ((DWORD)0) : djn.sclust;
+ st_clust(dir, dw);
+ djo.fs->wflag = 1U;
+ }
+ }
+ }
+ if (res == FR_OK) {
+ res = dir_remove(&djo); /* Remove old entry */
+ if (res == FR_OK) {
+ res = sync_fs(djo.fs);
+ }
+ }
+ }
+/* End critical section */
+ }
+ }
+ }
+ FREE_BUF();
+ }
+
+ LEAVE_FF(djo.fs, res);
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _FS_MINIMIZE == 0 */
+#endif /* _FS_MINIMIZE <= 1 */
+#endif /* _FS_MINIMIZE <= 2 */
+
+
+
+#if _USE_LABEL
+/*-----------------------------------------------------------------------*/
+/* Get volume label */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_getlabel (
+ const TCHAR* path, /* Path name of the logical drive number */
+ TCHAR* label, /* Pointer to a buffer to return the volume label */
+ DWORD* vsn /* Pointer to a variable to return the volume serial number */
+)
+{
+ FRESULT res;
+ DIR dj;
+ UINT i, j;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &path, 0);
+
+ /* Get volume label */
+ if (res == FR_OK && label) {
+ dj.sclust = 0; /* Open root directory */
+ res = dir_sdi(&dj, 0);
+ if (res == FR_OK) {
+ res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
+ if (res == FR_OK) { /* A volume label is exist */
+#if _USE_LFN && _LFN_UNICODE
+ WCHAR w;
+ i = j = 0;
+ do {
+ w = (i < 11) ? dj.dir[i++] : ' ';
+ if (IsDBCS1(w) && (i < 11) && IsDBCS2(dj.dir[i])) {
+ w = w << 8 | dj.dir[i++];
+ }
+ label[j++] = ff_convert(w, 1); /* OEM -> Unicode */
+ } while (j < 11);
+#else
+ mem_cpy(label, dj.dir, 11);
+#endif
+ j = 11;
+ do {
+ label[j] = 0;
+ if ((!j) != 0U) {
+ break;
+ }
+ } while (label[--j] == ' ');
+ }
+ if (res == FR_NO_FILE) { /* No label, return nul string */
+ label[0] = 0;
+ res = FR_OK;
+ }
+ }
+ }
+
+ /* Get volume serial number */
+ if (res == FR_OK && vsn) {
+ res = move_window(dj.fs, dj.fs->volbase);
+ if (res == FR_OK) {
+ i = dj.fs->fs_type == FS_FAT32 ? BS_VolID32 : BS_VolID;
+ *vsn = LD_DWORD(&dj.fs->win[i]);
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+
+
+#if !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Set volume label */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_setlabel (
+ const TCHAR* label /* Pointer to the volume label to set */
+)
+{
+ FRESULT res;
+ DIR dj;
+ BYTE vn[11];
+ UINT i, j, sl;
+ WCHAR w;
+ DWORD tm;
+
+
+ /* Get logical drive number */
+ res = find_volume(&dj.fs, &label, 1);
+ if (res) {
+ LEAVE_FF(dj.fs, res);
+ }
+
+ /* Create a volume label in directory form */
+ vn[0] = 0;
+ for (sl = 0; label[sl]; sl++) ; /* Get name length */
+ for ( ; sl && label[sl-1] == ' '; sl--) ; /* Remove trailing spaces */
+ if (sl) { /* Create volume label in directory form */
+ i = j = 0;
+ do {
+#if _USE_LFN && _LFN_UNICODE
+ w = ff_convert(ff_wtoupper(label[i++]), 0);
+#else
+ w = (BYTE)label[i++];
+ if (IsDBCS1(w)) {
+ w = ((j < 10) && (i < sl) && IsDBCS2(label[i])) ? w << 8 | (BYTE)label[i++] : 0;
+ }
+#if _USE_LFN
+ w = ff_convert(ff_wtoupper(ff_convert(w, 1)), 0);
+#else
+ if (IsLower(w)) {
+ w -= 0x20; /* To upper ASCII characters */
+ }
+#ifdef _EXCVT
+ if (w >= 0x80) {
+ w = ExCvt[w - 0x80]; /* To upper extended characters (SBCS cfg) */
+ }
+#else
+ if (((!DF1S) != 0U) && ((w >= 0x80) != 0U)) {
+ w = 0; /* Reject extended characters (ASCII cfg) */
+ }
+#endif
+#endif
+#endif
+ if ((!w) || chk_chr("\"*+,.:;<=>\?[]|\x7F", w) || j >= (UINT)((w >= 0x100) ? 10 : 11)) {/* Reject invalid characters for volume label */
+ LEAVE_FF(dj.fs, FR_INVALID_NAME);
+ }
+ if (w >= 0x100) {
+ vn[j++] = (BYTE)(w >> 8);
+ }
+ vn[j++] = (BYTE)w;
+ } while (i < sl);
+ while (j < 11) vn[j++] = ' ';
+ }
+
+ /* Set volume label */
+ dj.sclust = 0; /* Open root directory */
+ res = dir_sdi(&dj, 0);
+ if (res == FR_OK) {
+ res = dir_read(&dj, 1); /* Get an entry with AM_VOL */
+ if (res == FR_OK) { /* A volume label is found */
+ if (vn[0]) {
+ mem_cpy(dj.dir, vn, 11); /* Change the volume label name */
+ tm = get_fattime();
+ ST_DWORD(dj.dir+DIR_WrtTime, tm);
+ } else {
+ dj.dir[0] = DDE; /* Remove the volume label */
+ }
+ dj.fs->wflag = 1;
+ res = sync_fs(dj.fs);
+ } else { /* No volume label is found or error */
+ if (res == FR_NO_FILE) {
+ res = FR_OK;
+ if (vn[0]) { /* Create volume label as new */
+ res = dir_alloc(&dj, 1); /* Allocate an entry for volume label */
+ if (res == FR_OK) {
+ mem_set(dj.dir, 0, SZ_DIR); /* Set volume label */
+ mem_cpy(dj.dir, vn, 11);
+ dj.dir[DIR_Attr] = AM_VOL;
+ tm = get_fattime();
+ ST_DWORD(dj.dir+DIR_WrtTime, tm);
+ dj.fs->wflag = 1;
+ res = sync_fs(dj.fs);
+ }
+ }
+ }
+ }
+ }
+
+ LEAVE_FF(dj.fs, res);
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _USE_LABEL */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Forward data to the stream directly (available on only tiny cfg) */
+/*-----------------------------------------------------------------------*/
+#if _USE_FORWARD && _FS_TINY
+
+FRESULT f_forward (
+ FIL* fp, /* Pointer to the file object */
+ UINT (*func)(const BYTE*,UINT), /* Pointer to the streaming function */
+ UINT btf, /* Number of bytes to forward */
+ UINT* bf /* Pointer to number of bytes forwarded */
+)
+{
+ FRESULT res;
+ DWORD remain, clst, sect;
+ UINT rcnt;
+ BYTE csect;
+
+
+ *bf = 0; /* Clear transfer byte counter */
+
+ res = validate(fp); /* Check validity of the object */
+ if (res != FR_OK) {
+ LEAVE_FF(fp->fs, res);
+ }
+ if (fp->err) { /* Check error */
+ LEAVE_FF(fp->fs, (FRESULT)fp->err);
+ }
+ if ((!(fp->flag & FA_READ)) != 0U) { /* Check access mode */
+ LEAVE_FF(fp->fs, FR_DENIED);
+ }
+
+ remain = fp->fsize - fp->fptr;
+ if (btf > remain) {
+ btf = (UINT)remain; /* Truncate btf by remaining bytes */
+ }
+
+ for ( ; btf && (*func)(0, 0); /* Repeat until all data transferred or stream becomes busy */
+ fp->fptr += rcnt, *bf += rcnt, btf -= rcnt) {
+ csect = (BYTE)(fp->fptr / SS(fp->fs) & (fp->fs->csize - 1)); /* Sector offset in the cluster */
+ if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */
+ if (!csect) { /* On the cluster boundary? */
+ clst = (fp->fptr == 0) ? /* On the top of the file? */
+ fp->sclust : get_fat(fp->fs, fp->clust);
+ if (clst <= 1) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ if (clst == 0xFFFFFFFF) {
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->clust = clst; /* Update current cluster */
+ }
+ }
+ sect = clust2sect(fp->fs, fp->clust); /* Get current data sector */
+ if ((!sect) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ sect += csect;
+ if (move_window(fp->fs, sect)) { /* Move sector window */
+ ABORT(fp->fs, FR_DISK_ERR);
+ }
+ fp->dsect = sect;
+ rcnt = SS(fp->fs) - (WORD)(fp->fptr % SS(fp->fs)); /* Forward data from sector window */
+ if (rcnt > btf) {
+ rcnt = btf;
+ }
+ rcnt = (*func)(&fp->fs->win[(WORD)fp->fptr % SS(fp->fs)], rcnt);
+ if ((!rcnt) != 0U) {
+ ABORT(fp->fs, FR_INT_ERR);
+ }
+ }
+
+ LEAVE_FF(fp->fs, FR_OK);
+}
+#endif /* _USE_FORWARD */
+
+
+
+#if _USE_MKFS && !_FS_READONLY
+/*-----------------------------------------------------------------------*/
+/* Create File System on the Drive */
+/*-----------------------------------------------------------------------*/
+#define N_ROOTDIR 512 /* Number of root directory entries for FAT12/16 */
+#define N_FATS 1 /* Number of FAT copies (1 or 2) */
+
+
+FRESULT f_mkfs (
+ const TCHAR* path, /* Logical drive number */
+ BYTE sfd, /* Partitioning rule 0:FDISK, 1:SFD */
+ UINT au /* Allocation unit [bytes] */
+)
+{
+ static const WORD vst[] = { 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 0};
+ static const WORD cst[] = {32768, 16384, 8192, 4096, 2048, 16384, 8192, 4096, 2048, 1024, 512};
+ int vol;
+ BYTE fmt, md, sys, *tbl, pdrv, part;
+ DWORD n_clst, vs, n, wsect;
+ UINT i;
+ DWORD b_vol, b_fat, b_dir, b_data; /* LBA */
+ DWORD n_vol, n_rsv, n_fat, n_dir; /* Size */
+ FATFS *fs;
+ DSTATUS stat;
+
+
+ /* Check mounted drive and clear work area */
+ vol = get_ldnumber(&path);
+ if (vol < 0) {
+ return FR_INVALID_DRIVE;
+ }
+ if (sfd > 1) {
+ return FR_INVALID_PARAMETER;
+ }
+ if (au & (au - 1)) {
+ return FR_INVALID_PARAMETER;
+ }
+ fs = FatFs[vol];
+ if ((!fs) != 0U) {
+ return FR_NOT_ENABLED;
+ }
+ fs->fs_type = 0;
+ pdrv = LD2PD(vol); /* Physical drive */
+ part = LD2PT(vol); /* Partition (0:auto detect, 1-4:get from partition table)*/
+
+ /* Get disk statics */
+ stat = disk_initialize(pdrv);
+ if (stat & STA_NOINIT) {
+ return FR_NOT_READY;
+ }
+ if (stat & STA_PROTECT) {
+ return FR_WRITE_PROTECTED;
+ }
+#if _MAX_SS != _MIN_SS /* Get disk sector size */
+ if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || (SS(fs) > _MAX_SS) || (SS(fs) < _MIN_SS)) {
+ return FR_DISK_ERR;
+ }
+#endif
+ if (_MULTI_PARTITION && part) {
+ /* Get partition information from partition table in the MBR */
+ if (disk_read(pdrv, fs->win, 0, 1) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ if (LD_WORD(fs->win+BS_55AA) != 0xAA55) {
+ return FR_MKFS_ABORTED;
+ }
+ tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
+ if ((!tbl[4]) != 0U) {
+ return FR_MKFS_ABORTED; /* No partition? */
+ }
+ b_vol = LD_DWORD(tbl+8); /* Volume start sector */
+ n_vol = LD_DWORD(tbl+12); /* Volume size */
+ } else {
+ /* Create a partition in this function */
+ if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &n_vol) != RES_OK || (n_vol < 128)) {
+ return FR_DISK_ERR;
+ }
+ b_vol = (sfd) ? 0 : 63; /* Volume start sector */
+ n_vol -= b_vol; /* Volume size */
+ }
+
+ if ((!au) != 0U) { /* AU auto selection */
+ vs = n_vol / (2000 / (SS(fs) / 512));
+ for (i = 0; vs < vst[i]; i++) ;
+ au = cst[i];
+ }
+ au /= SS(fs); /* Number of sectors per cluster */
+ if (au == 0) {
+ au = 1;
+ }
+ if (au > 128) {
+ au = 128;
+ }
+
+ /* Pre-compute number of clusters and FAT sub-type */
+ n_clst = n_vol / au;
+ fmt = FS_FAT12;
+ if (n_clst >= MIN_FAT16) {
+ fmt = FS_FAT16;
+ }
+ if (n_clst >= MIN_FAT32) {
+ fmt = FS_FAT32;
+ }
+
+ /* Determine offset and size of FAT structure */
+ if (fmt == FS_FAT32) {
+ n_fat = ((n_clst * 4) + 8 + SS(fs) - 1) / SS(fs);
+ n_rsv = 32;
+ n_dir = 0;
+ } else {
+ n_fat = (fmt == FS_FAT12) ? (n_clst * 3 + 1) / 2 + 3 : (n_clst * 2) + 4;
+ n_fat = (n_fat + SS(fs) - 1) / SS(fs);
+ n_rsv = 1;
+ n_dir = (DWORD)N_ROOTDIR * SZ_DIR / SS(fs);
+ }
+ b_fat = b_vol + n_rsv; /* FAT area start sector */
+ b_dir = b_fat + n_fat * N_FATS; /* Directory area start sector */
+ b_data = b_dir + n_dir; /* Data area start sector */
+ if (n_vol < b_data + au - b_vol) {
+ return FR_MKFS_ABORTED; /* Too small volume */
+ }
+
+ /* Align data start sector to erase block boundary (for flash memory media) */
+ if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &n) != RES_OK || (!n) || (n > 32768)) {
+ n = 1;
+ }
+ n = (b_data + n - 1) & ~(n - 1); /* Next nearest erase block from current data start */
+ n = (n - b_data) / N_FATS;
+ if (fmt == FS_FAT32) { /* FAT32: Move FAT offset */
+ n_rsv += n;
+ b_fat += n;
+ } else { /* FAT12/16: Expand FAT size */
+ n_fat += n;
+ }
+
+ /* Determine number of clusters and final check of validity of the FAT sub-type */
+ n_clst = (n_vol - n_rsv - n_fat * N_FATS - n_dir) / au;
+ if ( (fmt == FS_FAT16 && n_clst < MIN_FAT16)
+ || (fmt == FS_FAT32 && n_clst < MIN_FAT32)) {
+ return FR_MKFS_ABORTED;
+ }
+
+ /* Determine system ID in the partition table */
+ if (fmt == FS_FAT32) {
+ sys = 0x0C; /* FAT32X */
+ } else {
+ if (fmt == FS_FAT12 && n_vol < 0x10000) {
+ sys = 0x01; /* FAT12(<65536) */
+ } else {
+ sys = (n_vol < 0x10000) ? 0x04 : 0x06; /* FAT16(<65536) : FAT12/16(>=65536) */
+ }
+ }
+
+ if (_MULTI_PARTITION && part) {
+ /* Update system ID in the partition table */
+ tbl = &fs->win[MBR_Table + (part - 1) * SZ_PTE];
+ tbl[4] = sys;
+ if (disk_write(pdrv, fs->win, 0, 1) != 0U) { /* Write it to teh MBR */
+ return FR_DISK_ERR;
+ }
+ md = 0xF8;
+ } else {
+ if (sfd) { /* No partition table (SFD) */
+ md = 0xF0;
+ } else { /* Create partition table (FDISK) */
+ mem_set(fs->win, 0, SS(fs));
+ tbl = fs->win+MBR_Table; /* Create partition table for single partition in the drive */
+ tbl[1] = 1; /* Partition start head */
+ tbl[2] = 1; /* Partition start sector */
+ tbl[3] = 0; /* Partition start cylinder */
+ tbl[4] = sys; /* System type */
+ tbl[5] = 254; /* Partition end head */
+ n = (b_vol + n_vol) / 63 / 255;
+ tbl[6] = (BYTE)(n >> 2 | 63); /* Partition end sector */
+ tbl[7] = (BYTE)n; /* End cylinder */
+ ST_DWORD(tbl+8, 63); /* Partition start in LBA */
+ ST_DWORD(tbl+12, n_vol); /* Partition size in LBA */
+ ST_WORD(fs->win+BS_55AA, 0xAA55); /* MBR signature */
+ if (disk_write(pdrv, fs->win, 0, 1) != RES_OK) { /* Write it to the MBR */
+ return FR_DISK_ERR;
+ }
+ md = 0xF8;
+ }
+ }
+
+ /* Create BPB in the VBR */
+ tbl = fs->win; /* Clear sector */
+ mem_set(tbl, 0, SS(fs));
+ mem_cpy(tbl, "\xEB\xFE\x90" "MSDOS5.0", 11);/* Boot jump code, OEM name */
+ i = SS(fs); /* Sector size */
+ ST_WORD(tbl+BPB_BytsPerSec, i);
+ tbl[BPB_SecPerClus] = (BYTE)au; /* Sectors per cluster */
+ ST_WORD(tbl+BPB_RsvdSecCnt, n_rsv); /* Reserved sectors */
+ tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */
+ i = (fmt == FS_FAT32) ? 0 : N_ROOTDIR; /* Number of root directory entries */
+ ST_WORD(tbl+BPB_RootEntCnt, i);
+ if (n_vol < 0x10000) { /* Number of total sectors */
+ ST_WORD(tbl+BPB_TotSec16, n_vol);
+ } else {
+ ST_DWORD(tbl+BPB_TotSec32, n_vol);
+ }
+ tbl[BPB_Media] = md; /* Media descriptor */
+ ST_WORD(tbl+BPB_SecPerTrk, 63); /* Number of sectors per track */
+ ST_WORD(tbl+BPB_NumHeads, 255); /* Number of heads */
+ ST_DWORD(tbl+BPB_HiddSec, b_vol); /* Hidden sectors */
+ n = get_fattime(); /* Use current time as VSN */
+ if (fmt == FS_FAT32) {
+ ST_DWORD(tbl+BS_VolID32, n); /* VSN */
+ ST_DWORD(tbl+BPB_FATSz32, n_fat); /* Number of sectors per FAT */
+ ST_DWORD(tbl+BPB_RootClus, 2); /* Root directory start cluster (2) */
+ ST_WORD(tbl+BPB_FSInfo, 1); /* FSINFO record offset (VBR+1) */
+ ST_WORD(tbl+BPB_BkBootSec, 6); /* Backup boot record offset (VBR+6) */
+ tbl[BS_DrvNum32] = 0x80; /* Drive number */
+ tbl[BS_BootSig32] = 0x29; /* Extended boot signature */
+ mem_cpy(tbl+BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
+ } else {
+ ST_DWORD(tbl+BS_VolID, n); /* VSN */
+ ST_WORD(tbl+BPB_FATSz16, n_fat); /* Number of sectors per FAT */
+ tbl[BS_DrvNum] = 0x80; /* Drive number */
+ tbl[BS_BootSig] = 0x29; /* Extended boot signature */
+ mem_cpy(tbl+BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
+ }
+ ST_WORD(tbl+BS_55AA, 0xAA55); /* Signature (Offset is fixed here regardless of sector size) */
+ if (disk_write(pdrv, tbl, b_vol, 1) != RES_OK) { /* Write it to the VBR sector */
+ return FR_DISK_ERR;
+ }
+ if (fmt == FS_FAT32) { /* Write backup VBR if needed (VBR+6) */
+ disk_write(pdrv, tbl, b_vol + 6, 1);
+ }
+
+ /* Initialize FAT area */
+ wsect = b_fat;
+ for (i = 0; i < N_FATS; i++) { /* Initialize each FAT copy */
+ mem_set(tbl, 0, SS(fs)); /* 1st sector of the FAT */
+ n = md; /* Media descriptor byte */
+ if (fmt != FS_FAT32) {
+ n |= (fmt == FS_FAT12) ? 0x00FFFF00 : 0xFFFFFF00;
+ ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT12/16) */
+ } else {
+ n |= 0xFFFFFF00;
+ ST_DWORD(tbl+0, n); /* Reserve cluster #0-1 (FAT32) */
+ ST_DWORD(tbl+4, 0xFFFFFFFF);
+ ST_DWORD(tbl+8, 0x0FFFFFFF); /* Reserve cluster #2 for root directory */
+ }
+ if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ mem_set(tbl, 0, SS(fs)); /* Fill following FAT entries with zero */
+ for (n = 1; n < n_fat; n++) { /* This loop may take a time on FAT32 volume due to many single sector writes */
+ if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ }
+ }
+
+ /* Initialize root directory */
+ i = (fmt == FS_FAT32) ? au : (UINT)n_dir;
+ do {
+ if (disk_write(pdrv, tbl, wsect++, 1) != RES_OK) {
+ return FR_DISK_ERR;
+ }
+ } while (--i);
+
+#if _USE_ERASE /* Erase data area if needed */
+ {
+ DWORD eb[2];
+
+ eb[0] = wsect; eb[1] = wsect + (n_clst - ((fmt == FS_FAT32) ? 1 : 0)) * au - 1;
+ disk_ioctl(pdrv, CTRL_ERASE_SECTOR, eb);
+ }
+#endif
+
+ /* Create FSINFO if needed */
+ if (fmt == FS_FAT32) {
+ ST_DWORD(tbl+FSI_LeadSig, 0x41615252);
+ ST_DWORD(tbl+FSI_StrucSig, 0x61417272);
+ ST_DWORD(tbl+FSI_Free_Count, n_clst - 1); /* Number of free clusters */
+ ST_DWORD(tbl+FSI_Nxt_Free, 2); /* Last allocated cluster# */
+ ST_WORD(tbl+BS_55AA, 0xAA55);
+ disk_write(pdrv, tbl, b_vol + 1, 1); /* Write original (VBR+1) */
+ disk_write(pdrv, tbl, b_vol + 7, 1); /* Write backup (VBR+7) */
+ }
+
+ return (disk_ioctl(pdrv, CTRL_SYNC, (void *)0) == RES_OK) ? FR_OK : FR_DISK_ERR;
+}
+
+
+
+#if _MULTI_PARTITION
+/*-----------------------------------------------------------------------*/
+/* Divide Physical Drive */
+/*-----------------------------------------------------------------------*/
+
+FRESULT f_fdisk (
+ BYTE pdrv, /* Physical drive number */
+ const DWORD szt[], /* Pointer to the size table for each partitions */
+ void* work /* Pointer to the working buffer */
+)
+{
+ UINT i, n, sz_cyl, tot_cyl, b_cyl, e_cyl, p_cyl;
+ BYTE s_hd, e_hd, *p, *buf = (BYTE*)work;
+ DSTATUS stat;
+ DWORD sz_disk, sz_part, s_part;
+
+
+ stat = disk_initialize(pdrv);
+ if (stat & STA_NOINIT) {
+ return FR_NOT_READY;
+ }
+ if (stat & STA_PROTECT) {
+ return FR_WRITE_PROTECTED;
+ }
+ if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_disk)) {
+ return FR_DISK_ERR;
+ }
+
+ /* Determine CHS in the table regardless of the drive geometry */
+ for (n = 16; n < 256 && sz_disk / n / 63 > 1024; n *= 2) ;
+ if (n == 256) {
+ n--;
+ }
+ e_hd = n - 1;
+ sz_cyl = 63 * n;
+ tot_cyl = sz_disk / sz_cyl;
+
+ /* Create partition table */
+ mem_set(buf, 0, _MAX_SS);
+ p = buf + MBR_Table; b_cyl = 0;
+ for (i = 0; i < 4; i++, p += SZ_PTE) {
+ p_cyl = (szt[i] <= 100U) ? (DWORD)tot_cyl * szt[i] / 100 : szt[i] / sz_cyl;
+ if (!p_cyl) continue;
+ s_part = (DWORD)sz_cyl * b_cyl;
+ sz_part = (DWORD)sz_cyl * p_cyl;
+ if (i == 0) { /* Exclude first track of cylinder 0 */
+ s_hd = 1;
+ s_part += 63; sz_part -= 63;
+ } else {
+ s_hd = 0;
+ }
+ e_cyl = b_cyl + p_cyl - 1;
+ if (e_cyl >= tot_cyl) {
+ return FR_INVALID_PARAMETER;
+ }
+
+ /* Set partition table */
+ p[1] = s_hd; /* Start head */
+ p[2] = (BYTE)((b_cyl >> 2) + 1); /* Start sector */
+ p[3] = (BYTE)b_cyl; /* Start cylinder */
+ p[4] = 0x06; /* System type (temporary setting) */
+ p[5] = e_hd; /* End head */
+ p[6] = (BYTE)((e_cyl >> 2) + 63); /* End sector */
+ p[7] = (BYTE)e_cyl; /* End cylinder */
+ ST_DWORD(p + 8, s_part); /* Start sector in LBA */
+ ST_DWORD(p + 12, sz_part); /* Partition size */
+
+ /* Next partition */
+ b_cyl += p_cyl;
+ }
+ ST_WORD(p, 0xAA55);
+
+ /* Write it to the MBR */
+ return (disk_write(pdrv, buf, 0, 1) || disk_ioctl(pdrv, CTRL_SYNC, 0)) ? FR_DISK_ERR : FR_OK;
+}
+
+
+#endif /* _MULTI_PARTITION */
+#endif /* _USE_MKFS && !_FS_READONLY */
+
+
+
+
+#if _USE_STRFUNC
+/*-----------------------------------------------------------------------*/
+/* Get a string from the file */
+/*-----------------------------------------------------------------------*/
+
+TCHAR* f_gets (
+ TCHAR* buff, /* Pointer to the string buffer to read */
+ s32 len, /* Size of string buffer (characters) */
+ FIL* fp /* Pointer to the file object */
+)
+{
+ s32 n = 0;
+ TCHAR c, *p = buff;
+ BYTE s[2];
+ UINT rc;
+
+
+ while (n < len - 1) { /* Read characters until buffer gets filled */
+#if _USE_LFN && _LFN_UNICODE
+#if _STRF_ENCODE == 3 /* Read a character in UTF-8 */
+ f_read(fp, s, 1, &rc);
+ if (rc != 1) {
+ break;
+ }
+ c = s[0];
+ if (c >= 0x80) {
+ if (c < 0xC0) {
+ continue; /* Skip stray trailer */
+ }
+ if (c < 0xE0) { /* Two-byte sequence */
+ f_read(fp, s, 1, &rc);
+ if (rc != 1) {
+ break;
+ }
+ c = ((c & 0x1F) << 6 )| (s[0] & 0x3F);
+ if (c < 0x80) {
+ c = '?';
+ }
+ } else {
+ if (c < 0xF0) { /* Three-byte sequence */
+ f_read(fp, s, 2, &rc);
+ if (rc != 2) {
+ break;
+ }
+ c = (c << 12) | ((s[0] & 0x3F) << 6) | (s[1] & 0x3F);
+ if (c < 0x800) {
+ c = '?';
+ }
+ } else { /* Reject four-byte sequence */
+ c = '?';
+ }
+ }
+ }
+#elif _STRF_ENCODE == 2 /* Read a character in UTF-16BE */
+ f_read(fp, s, 2, &rc);
+ if (rc != 2) {
+ break;
+ }
+ c = s[1] + (s[0] << 8);
+#elif _STRF_ENCODE == 1 /* Read a character in UTF-16LE */
+ f_read(fp, s, 2, &rc);
+ if (rc != 2) {
+ break;
+ }
+ c = s[0] + (s[1] << 8);
+#else /* Read a character in ANSI/OEM */
+ f_read(fp, s, 1, &rc);
+ if (rc != 1) {
+ break;
+ }
+ c = s[0];
+ if (IsDBCS1(c)) {
+ f_read(fp, s, 1, &rc);
+ if (rc != 1) break;
+ c = (c << 8) + s[0];
+ }
+ c = ff_convert(c, 1); /* OEM -> Unicode */
+ if ((!c) != 0U) {
+ c = '?';
+ }
+#endif
+#else /* Read a character without conversion */
+ f_read(fp, s, 1, &rc);
+ if (rc != 1) {
+ break;
+ }
+ c = s[0];
+#endif
+ if ((_USE_STRFUNC == 2) && (c == '\r')){
+ continue; /* Strip '\r' */
+ }
+ *p++ = c;
+ n++;
+ if (c == '\n') {
+ break; /* Break on EOL */
+ }
+ }
+ *p = 0;
+ return n ? buff : 0; /* When no data read (eof or error), return with error. */
+}
+
+
+
+#if !_FS_READONLY
+#include
+/*-----------------------------------------------------------------------*/
+/* Put a character to the file */
+/*-----------------------------------------------------------------------*/
+
+typedef struct {
+ FIL* fp;
+ s32 idx, nchr;
+ BYTE buf[64];
+} putbuff;
+
+
+static
+void putc_bfd (
+ putbuff* pb,
+ TCHAR c
+)
+{
+ UINT bw;
+ s32 i;
+
+
+ if ((_USE_STRFUNC == 2) && (c == '\n')) { /* LF -> CRLF conversion */
+ putc_bfd(pb, '\r');
+ }
+
+ i = pb->idx; /* Buffer write index (-1:error) */
+ if (i < 0) {
+ return;
+ }
+
+#if _USE_LFN && _LFN_UNICODE
+#if _STRF_ENCODE == 3 /* Write a character in UTF-8 */
+ if (c < 0x80) { /* 7-bit */
+ pb->buf[i++] = (BYTE)c;
+ } else {
+ if (c < 0x800) { /* 11-bit */
+ pb->buf[i++] = (BYTE)(0xC0 | c >> 6);
+ } else { /* 16-bit */
+ pb->buf[i++] = (BYTE)(0xE0 | c >> 12);
+ pb->buf[i++] = (BYTE)(0x80 | (c >> 6 & 0x3F));
+ }
+ pb->buf[i++] = (BYTE)(0x80 | (c & 0x3F));
+ }
+#elif _STRF_ENCODE == 2 /* Write a character in UTF-16BE */
+ pb->buf[i++] = (BYTE)(c >> 8);
+ pb->buf[i++] = (BYTE)c;
+#elif _STRF_ENCODE == 1 /* Write a character in UTF-16LE */
+ pb->buf[i++] = (BYTE)c;
+ pb->buf[i++] = (BYTE)(c >> 8);
+#else /* Write a character in ANSI/OEM */
+ c = ff_convert(c, 0); /* Unicode -> OEM */
+ if ((!c) != 0U) {
+ c = '?';
+ }
+ if (c >= 0x100) {
+ pb->buf[i++] = (BYTE)(c >> 8);
+ }
+ pb->buf[i++] = (BYTE)c;
+#endif
+#else /* Write a character without conversion */
+ pb->buf[i++] = (BYTE)c;
+#endif
+
+ if (i >= (int)(sizeof pb->buf) - 3) { /* Write buffered characters to the file */
+ f_write(pb->fp, pb->buf, (UINT)i, &bw);
+ i = (bw == (UINT)i) ? 0 : -1;
+ }
+ pb->idx = i;
+ pb->nchr++;
+}
+
+
+
+int f_putc (
+ TCHAR c, /* A character to be output */
+ FIL* fp /* Pointer to the file object */
+)
+{
+ putbuff pb;
+ UINT nw;
+
+
+ pb.fp = fp; /* Initialize output buffer */
+ pb.nchr = pb.idx = 0;
+
+ putc_bfd(&pb, c); /* Put a character */
+
+ if ( pb.idx >= 0 /* Flush buffered characters to the file */
+ && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
+ && (UINT)pb.idx == nw) {
+ return pb.nchr;
+ }
+ return EOF;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a string to the file */
+/*-----------------------------------------------------------------------*/
+
+int f_puts (
+ const TCHAR* str, /* Pointer to the string to be output */
+ FIL* fp /* Pointer to the file object */
+)
+{
+ putbuff pb;
+ UINT nw;
+
+
+ pb.fp = fp; /* Initialize output buffer */
+ pb.nchr = pb.idx = 0;
+
+ while (*str) { /* Put the string */
+ putc_bfd(&pb, *str++);
+ }
+
+ if ( pb.idx >= 0 /* Flush buffered characters to the file */
+ && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
+ && (UINT)pb.idx == nw) {
+ return pb.nchr;
+ }
+ return EOF;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Put a formatted string to the file */
+/*-----------------------------------------------------------------------*/
+
+int f_printf (
+ FIL* fp, /* Pointer to the file object */
+ const TCHAR* fmt, /* Pointer to the format string */
+ ... /* Optional arguments... */
+)
+{
+ va_list arp;
+ BYTE f, r;
+ UINT nw, i, j, w;
+ DWORD v;
+ TCHAR c, d, s[16], *p;
+ putbuff pb;
+
+
+ pb.fp = fp; /* Initialize output buffer */
+ pb.nchr = pb.idx = 0;
+
+ va_start(arp, fmt);
+
+ for (;;) {
+ c = *fmt++;
+ if (c == 0) {
+ break; /* End of string */
+ }
+ if (c != '%') { /* Non escape character */
+ putc_bfd(&pb, c);
+ }
+ continue;
+ }
+ w = f = 0;
+ c = *fmt++;
+ if (c == '0') { /* Flag: '0' padding */
+ f = 1; c = *fmt++;
+ } else {
+ if (c == '-') { /* Flag: left justified */
+ f = 2; c = *fmt++;
+ }
+ }
+ while (IsDigit(c)) { /* Precision */
+ w = w * 10 + c - '0';
+ c = *fmt++;
+ }
+ if ((c == 'l') || (c == 'L')) { /* Prefix: Size is long int */
+ f |= 4; c = *fmt++;
+ }
+ if ((!c) != 0U) {
+ break;
+ }
+ d = c;
+ if (IsLower(d)) {
+ d -= 0x20;
+ }
+ switch (d) { /* Type is... */
+ case 'S' : /* String */
+ p = va_arg(arp, TCHAR*);
+ for (j = 0; p[j]; j++) ;
+ if (!(f & 2)) {
+ while (j++ < w) putc_bfd(&pb, ' ');
+ }
+ while (*p) {
+ putc_bfd(&pb, *p++);
+ }
+ while (j++ < w) {
+ putc_bfd(&pb, ' ');
+ }
+ continue;
+ case 'C' : /* Character */
+ putc_bfd(&pb, (TCHAR)va_arg(arp, int)); continue;
+ case 'B' : /* Binary */
+ r = 2; break;
+ case 'O' : /* Octal */
+ r = 8; break;
+ case 'D' : /* Signed decimal */
+ case 'U' : /* Unsigned decimal */
+ r = 10; break;
+ case 'X' : /* Hexdecimal */
+ r = 16; break;
+ default: /* Unknown type (pass-through) */
+ putc_bfd(&pb, c); continue;
+ }
+
+ /* Get an argument and put it in numeral */
+ v = (f & 4) ? (DWORD)va_arg(arp, long) : ((d == 'D') ? (DWORD)(long)va_arg(arp, int) : (DWORD)va_arg(arp, unsigned int));
+ if (d == 'D' && (v & 0x80000000)) {
+ v = 0 - v;
+ f |= 8;
+ }
+ i = 0;
+ do {
+ d = (TCHAR)(v % r); v /= r;
+ if (d > 9) {
+ d += (c == 'x') ? 0x27 : 0x07;
+ }
+ s[i++] = d + '0';
+ } while (v && i < sizeof s / sizeof s[0]);
+ if (f & 8) {
+ s[i++] = '-';
+ }
+ j = i; d = (f & 1) ? '0' : ' ';
+ while (((!(f & 2)) != 0U) && ((j++ < w) != 0U)) {
+ putc_bfd(&pb, d);
+ }
+ do putc_bfd(&pb, s[--i]); while (i);
+ while (j++ < w) {
+ putc_bfd(&pb, d);
+ }
+ }
+
+ va_end(arp);
+
+ if ( pb.idx >= 0 /* Flush buffered characters to the file */
+ && f_write(pb.fp, pb.buf, (UINT)pb.idx, &nw) == FR_OK
+ && (UINT)pb.idx == nw) {
+ return pb.nchr;
+ }
+ return EOF;
+}
+
+#endif /* !_FS_READONLY */
+#endif /* _USE_STRFUNC */
+
+#endif /* XPAR_PS7_SD_0_S_AXI_BASEADDR */
diff --git a/lib/sw_services/xilffs/src/include/diskio.h b/lib/sw_services/xilffs/src/include/diskio.h
new file mode 100644
index 00000000..e8cb253f
--- /dev/null
+++ b/lib/sw_services/xilffs/src/include/diskio.h
@@ -0,0 +1,79 @@
+/*-----------------------------------------------------------------------/
+/ Low level disk interface modlue include file (C)ChaN, 2014 /
+/-----------------------------------------------------------------------*/
+
+#ifndef DISKIO_DEFINED
+#define DISKIO_DEFINED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define USE_WRITE 1 /* 1: Enable disk_write function */
+#define USE_IOCTL 1 /* 1: Enable disk_ioctl fucntion */
+
+#include "integer.h"
+#include "xil_types.h"
+
+/* Status of Disk Functions */
+typedef BYTE DSTATUS;
+
+/* Results of Disk Functions */
+typedef enum {
+ RES_OK = 0, /* 0: Successful */
+ RES_ERROR, /* 1: R/W Error */
+ RES_WRPRT, /* 2: Write Protected */
+ RES_NOTRDY, /* 3: Not Ready */
+ RES_PARERR /* 4: Invalid Parameter */
+} DRESULT;
+
+
+/*---------------------------------------*/
+/* Prototypes for disk control functions */
+
+DSTATUS disk_initialize (BYTE pdrv);
+DSTATUS disk_status (BYTE pdrv);
+DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
+DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
+DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
+
+
+/* Disk Status Bits (DSTATUS) */
+
+#define STA_NOINIT 0x01U /* Drive not initialized */
+#define STA_NODISK 0x02U /* No medium in the drive */
+#define STA_PROTECT 0x04U /* Write protected */
+
+
+/* Command code for disk_ioctrl fucntion */
+
+/* Generic command (used by FatFs) */
+#define CTRL_SYNC 0U /* Flush disk cache (for write functions) */
+#define GET_SECTOR_COUNT 1U /* Get media size (for only f_mkfs()) */
+#define GET_SECTOR_SIZE 2U /* Get sector size (for multiple sector size (_MAX_SS >= 1024)) */
+#define GET_BLOCK_SIZE 3U /* Get erase block size (for only f_mkfs()) */
+#define CTRL_ERASE_SECTOR 4U /* Force erased a block of sectors (for only _USE_ERASE) */
+
+/* Generic command (not used by FatFs) */
+#define CTRL_POWER 5U /* Get/Set power status */
+#define CTRL_LOCK 6U /* Lock/Unlock media removal */
+#define CTRL_EJECT 7U /* Eject media */
+#define CTRL_FORMAT 8U /* Create physical format on the media */
+
+/* MMC/SDC specific ioctl command */
+#define MMC_GET_TYPE 10U /* Get card type */
+#define MMC_GET_CSD 11U /* Get CSD */
+#define MMC_GET_CID 12U /* Get CID */
+#define MMC_GET_OCR 13U /* Get OCR */
+#define MMC_GET_SDSTAT 14U /* Get SD status */
+
+/* ATA/CF specific ioctl command */
+#define ATA_GET_REV 20U /* Get F/W revision */
+#define ATA_GET_MODEL 21U /* Get model name */
+#define ATA_GET_SN 22U /* Get serial number */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/sw_services/xilffs/src/include/ff.h b/lib/sw_services/xilffs/src/include/ff.h
new file mode 100644
index 00000000..31f04658
--- /dev/null
+++ b/lib/sw_services/xilffs/src/include/ff.h
@@ -0,0 +1,385 @@
+/*---------------------------------------------------------------------------/
+/ FatFs - FAT file system module include file R0.10b (C)ChaN, 2014
+/----------------------------------------------------------------------------/
+/ FatFs module is a generic FAT file system module for small embedded systems.
+/ This is a free software that opened for education, research and commercial
+/ developments under license policy of following terms.
+/
+/ Copyright (C) 2014, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/ personal, non-profit or commercial product UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/----------------------------------------------------------------------------*/
+
+#ifndef FAT_FS
+#define FAT_FS 8051 /* Revision ID */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "xil_types.h"
+#include "integer.h" /* Basic integer types */
+#include "ffconf.h" /* FatFs configuration options */
+
+#if FAT_FS != _FFCONF
+#error Wrong configuration file (ffconf.h).
+#endif
+
+
+
+/* Definitions of volume management */
+
+#if _MULTI_PARTITION /* Multiple partition configuration */
+typedef struct {
+ BYTE pd; /* Physical drive number */
+ BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
+} PARTITION;
+extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
+#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
+#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
+
+#else /* Single partition configuration */
+#define LD2PD(vol) (BYTE)((vol)) /* Each logical drive is bound to the same physical drive number */
+#define LD2PT(vol) 0U /* Find first valid partition or in SFD */
+
+#endif
+
+
+
+/* Type of path name strings on FatFs API */
+
+#if _LFN_UNICODE /* Unicode string */
+#if !_USE_LFN
+#error _LFN_UNICODE must be 0 at non-LFN cfg.
+#endif
+#ifndef _INC_TCHAR
+typedef WCHAR TCHAR;
+#define T(x) L ## x
+#define TEXT(x) L ## x
+#endif
+
+#else /* ANSI/OEM string */
+#ifndef _INC_TCHAR
+typedef char TCHAR;
+#define T(x) (x)
+#define TEXT(x) (x)
+#endif
+
+#endif
+
+
+
+/* File system object structure (FATFS) */
+
+typedef struct {
+ BYTE fs_type; /* FAT sub-type (0:Not mounted) */
+ BYTE drv; /* Physical drive number */
+ BYTE csize; /* Sectors per cluster (1,2,4...128) */
+ BYTE n_fats; /* Number of FAT copies (1 or 2) */
+ BYTE wflag; /* win[] flag (b0:dirty) */
+ BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
+ WORD id; /* File system mount ID */
+ WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
+#if _MAX_SS != _MIN_SS
+ WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
+#endif
+#if _FS_REENTRANT
+ _SYNC_t sobj; /* Identifier of sync object */
+#endif
+#if !_FS_READONLY
+ DWORD last_clust; /* Last allocated cluster */
+ DWORD free_clust; /* Number of free clusters */
+#endif
+#if _FS_RPATH
+ DWORD cdir; /* Current directory start cluster (0:root) */
+#endif
+ DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
+ DWORD fsize; /* Sectors per FAT */
+ DWORD volbase; /* Volume start sector */
+ DWORD fatbase; /* FAT start sector */
+ DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
+ DWORD database; /* Data start sector */
+ DWORD winsect; /* Current sector appearing in the win[] */
+#ifdef __ICCARM__
+#pragma data_alignment = 32
+ BYTE win[_MAX_SS];
+#pragma data_alignment = 4
+#else
+ BYTE win[_MAX_SS] __attribute__ ((aligned(32))); /* Disk access window for Directory, FAT (and Data on tiny cfg) */
+#endif
+} FATFS;
+
+
+
+/* File object structure (FIL) */
+
+typedef struct {
+ FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
+ WORD id; /* Owner file system mount ID (**do not change order**) */
+ BYTE flag; /* Status flags */
+ BYTE err; /* Abort flag (error code) */
+ DWORD fptr; /* File read/write pointer (Zeroed on file open) */
+ DWORD fsize; /* File size */
+ DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
+ DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
+ DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
+#if !_FS_READONLY
+ DWORD dir_sect; /* Sector number containing the directory entry */
+ BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
+#endif
+#if _USE_FASTSEEK
+ DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
+#endif
+#if _FS_LOCK
+ UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
+#endif
+#if !_FS_TINY
+#ifdef __ICCARM__
+#pragma data_alignment = 32
+ BYTE buf[_MAX_SS]; /* File data read/write buffer */
+#pragma data_alignment = 4
+#else
+ BYTE buf[_MAX_SS] __attribute__ ((aligned(32))); /* File data read/write buffer */
+#endif
+#endif
+} FIL;
+
+
+
+/* Directory object structure (DIR) */
+
+typedef struct {
+ FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
+ WORD id; /* Owner file system mount ID (**do not change order**) */
+ WORD index; /* Current read/write index number */
+ DWORD sclust; /* Table start cluster (0:Root dir) */
+ DWORD clust; /* Current cluster */
+ DWORD sect; /* Current sector */
+ BYTE* dir; /* Pointer to the current SFN entry in the win[] */
+ BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
+#if _FS_LOCK
+ UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
+#endif
+#if _USE_LFN
+ WCHAR* lfn; /* Pointer to the LFN working buffer */
+ WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
+#endif
+} DIR;
+
+
+
+/* File status structure (FILINFO) */
+
+typedef struct {
+ DWORD fsize; /* File size */
+ WORD fdate; /* Last modified date */
+ WORD ftime; /* Last modified time */
+ BYTE fattrib; /* Attribute */
+ TCHAR fname[13]; /* Short file name (8.3 format) */
+#if _USE_LFN
+ TCHAR* lfname; /* Pointer to the LFN buffer */
+ UINT lfsize; /* Size of LFN buffer in TCHAR */
+#endif
+} FILINFO;
+
+
+
+/* File function return code (FRESULT) */
+
+typedef enum {
+ FR_OK = 0U, /* (0) Succeeded */
+ FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
+ FR_INT_ERR, /* (2) Assertion failed */
+ FR_NOT_READY, /* (3) The physical drive cannot work */
+ FR_NO_FILE, /* (4) Could not find the file */
+ FR_NO_PATH, /* (5) Could not find the path */
+ FR_INVALID_NAME, /* (6) The path name format is invalid */
+ FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
+ FR_EXIST, /* (8) Access denied due to prohibited access */
+ FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
+ FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
+ FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
+ FR_NOT_ENABLED, /* (12) The volume has no work area */
+ FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
+ FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
+ FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
+ FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
+ FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
+ FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
+ FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
+} FRESULT;
+
+
+
+/*--------------------------------------------------------------*/
+/* FatFs module application interface */
+
+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_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
+FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
+#if _USE_FORWARD
+FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
+#endif
+FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
+FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
+#if _FS_MINIMIZE <= 2
+#if _FS_MINIMIZE <= 1
+FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
+FRESULT f_closedir (DIR* dp); /* Close an open directory */
+FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
+#if _FS_MINIMIZE == 0
+FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
+#if !_FS_READONLY
+FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfsys);
+FRESULT f_truncate (FIL* fp); /* Truncate file */
+FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
+FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
+FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
+FRESULT f_chmod (const TCHAR* path, BYTE value, BYTE mask); /* Change attribute of the file/dir */
+FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
+#endif
+#endif
+#endif
+#endif
+DWORD clust2sect (FATFS* fs, DWORD clst);
+DWORD get_fat ( FATFS* fs, DWORD clst);
+FRESULT put_fat (FATFS* fs, DWORD clst, DWORD val);
+#if _FS_RPATH >= 1
+#if _VOLUMES >= 2
+FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
+#endif
+FRESULT f_chdir (const TCHAR* path); /* Change current directory */
+#if _FS_RPATH >= 2
+FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
+#endif
+#endif
+#if _USE_LABEL
+FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
+#if !_FS_READONLY
+FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
+#endif
+#endif
+FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
+#if _USE_MKFS && !_FS_READONLY
+FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
+#if _MULTI_PARTITION
+FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
+#endif
+#endif
+#if _USE_STRFUNC
+TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
+#if !_FS_READONLY
+int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
+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 */
+#endif
+#endif
+#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
+#define f_error(fp) ((fp)->err)
+#define f_tell(fp) ((fp)->fptr)
+#define file_size(fp) ((fp)->fsize)
+
+#ifndef EOF
+#define EOF (-1)
+#endif
+
+
+
+
+/*--------------------------------------------------------------*/
+/* Additional user defined functions */
+
+/* RTC function */
+#if !_FS_READONLY
+DWORD get_fattime (void);
+#endif
+
+/* Unicode support functions */
+#if _USE_LFN /* Unicode - OEM code conversion */
+WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
+WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
+#if _USE_LFN == 3 /* Memory functions */
+void* ff_memalloc (UINT msize); /* Allocate memory block */
+void ff_memfree (void* mblock); /* Free memory block */
+#endif
+#endif
+
+/* Sync functions */
+#if _FS_REENTRANT
+int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
+int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
+void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
+int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
+#endif
+
+
+
+
+/*--------------------------------------------------------------*/
+/* Flags and offset address */
+
+
+/* File access control and file status flags (FIL.flag) */
+
+#define FA_READ 0x01U
+#define FA_OPEN_EXISTING 0x00U
+
+#if !_FS_READONLY
+#define FA_WRITE 0x02U
+#define FA_CREATE_NEW 0x04U
+#define FA_CREATE_ALWAYS 0x08U
+#define FA_OPEN_ALWAYS 0x10U
+#define FA__WRITTEN 0x20U
+#define FA__DIRTY 0x40U
+#endif
+
+
+/* FAT sub type (FATFS.fs_type) */
+
+#define FS_FAT12 1U
+#define FS_FAT16 2U
+#define FS_FAT32 3U
+
+
+/* File attribute bits for directory entry */
+
+#define AM_RDO 0x01U /* Read only */
+#define AM_HID 0x02U /* Hidden */
+#define AM_SYS 0x04U /* System */
+#define AM_VOL 0x08U /* Volume label */
+#define AM_LFN 0x0FU /* LFN entry */
+#define AM_DIR 0x10U /* Directory */
+#define AM_ARC 0x20U /* Archive */
+#define AM_MASK 0x3FU /* Mask of defined bits */
+
+
+/* Fast seek feature */
+#define CREATE_LINKMAP 0xFFFFFFFFU
+
+
+
+/*--------------------------------*/
+/* Multi-byte word access macros */
+
+#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
+#define LD_WORD(ptr) (*(WORD*)(BYTE*)(ptr))
+#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
+#define ST_WORD(ptr,val) (*(WORD*)(BYTE*)(ptr))=(WORD)(val)
+#define ST_DWORD(ptr,val) (*(DWORD*)(BYTE*)(ptr))=(DWORD)(val)
+#else /* Use byte-by-byte access to the FAT structure */
+#define LD_WORD(ptr) (((WORD)*((BYTE*)(ptr)+1U)<<8)|(WORD)*(BYTE*)(ptr))
+#define LD_DWORD(ptr) ((DWORD)(((DWORD)*((BYTE*)(ptr)+3U)<<24)|((DWORD)*((BYTE*)(ptr)+2U)<<16)|((WORD)*((BYTE*)(ptr)+1U)<<8)|*(BYTE*)(ptr)))
+#define ST_WORD(ptr,val) (*((WORD*)((void *)(ptr))))=((WORD)(val)); (*((WORD *)((ptr)+1U)))=(((WORD)(val))>>8)
+#define ST_DWORD(ptr,val) (*((DWORD*)((void *)(ptr))))=((DWORD)(val)); (*((BYTE*)(void *)((ptr)+1U)))=((BYTE)((DWORD)(val)>>8)); (*((BYTE*)(void *)((ptr)+2U)))=((BYTE)((DWORD)(val)>>16)); (*((BYTE*)(void *)((ptr)+3U)))=((BYTE)((DWORD)(val)>>24))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* FAT_FS */
diff --git a/lib/sw_services/xilffs/src/include/ffconf.h b/lib/sw_services/xilffs/src/include/ffconf.h
new file mode 100644
index 00000000..1c59faca
--- /dev/null
+++ b/lib/sw_services/xilffs/src/include/ffconf.h
@@ -0,0 +1,228 @@
+/*---------------------------------------------------------------------------/
+/ FatFs - FAT file system module configuration file R0.10b (C)ChaN, 2014
+/---------------------------------------------------------------------------*/
+
+#ifndef _FFCONF
+#define _FFCONF 8051 /* Revision ID */
+
+
+/*---------------------------------------------------------------------------/
+/ Functions and Buffer Configurations
+/---------------------------------------------------------------------------*/
+
+#define _FS_TINY 0 /* 0:Normal or 1:Tiny */
+/* When _FS_TINY is set to 1, it reduces memory consumption _MAX_SS bytes each
+/ file object. For file data transfer, FatFs uses the common sector buffer in
+/ the file system object (FATFS) instead of private sector buffer eliminated
+/ from the file object (FIL). */
+
+
+#define _FS_READONLY 0 /* 0:Read/Write or 1:Read only */
+/* Setting _FS_READONLY to 1 defines read only configuration. This removes
+/ writing functions, f_write(), f_sync(), f_unlink(), f_mkdir(), f_chmod(),
+/ f_rename(), f_truncate() and useless f_getfree(). */
+
+
+#define _FS_MINIMIZE 0 /* 0 to 3 */
+/* The _FS_MINIMIZE option defines minimization level to remove 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 /* 0:Disable or 1-2:Enable */
+/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
+
+
+#define _USE_MKFS 0 /* 0:Disable or 1:Enable */
+/* To enable f_mkfs() function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
+
+
+#define _USE_FASTSEEK 0 /* 0:Disable or 1:Enable */
+/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
+
+
+#define _USE_LABEL 0 /* 0:Disable or 1:Enable */
+/* To enable volume label functions, set _USE_LAVEL to 1 */
+
+
+#define _USE_FORWARD 0 /* 0:Disable or 1:Enable */
+/* To enable f_forward() function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
+
+
+/*---------------------------------------------------------------------------/
+/ Locale and Namespace Configurations
+/---------------------------------------------------------------------------*/
+
+#define _CODE_PAGE 932
+/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
+/ Incorrect setting of the code page can cause a file open failure.
+/
+/ 932 - Japanese Shift_JIS (DBCS, OEM, Windows)
+/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows)
+/ 949 - Korean (DBCS, OEM, Windows)
+/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows)
+/ 1250 - Central Europe (Windows)
+/ 1251 - Cyrillic (Windows)
+/ 1252 - Latin 1 (Windows)
+/ 1253 - Greek (Windows)
+/ 1254 - Turkish (Windows)
+/ 1255 - Hebrew (Windows)
+/ 1256 - Arabic (Windows)
+/ 1257 - Baltic (Windows)
+/ 1258 - Vietnam (OEM, Windows)
+/ 437 - U.S. (OEM)
+/ 720 - Arabic (OEM)
+/ 737 - Greek (OEM)
+/ 775 - Baltic (OEM)
+/ 850 - Multilingual Latin 1 (OEM)
+/ 858 - Multilingual Latin 1 + Euro (OEM)
+/ 852 - Latin 2 (OEM)
+/ 855 - Cyrillic (OEM)
+/ 866 - Russian (OEM)
+/ 857 - Turkish (OEM)
+/ 862 - Hebrew (OEM)
+/ 874 - Thai (OEM, Windows)
+/ 1 - ASCII (Valid for only non-LFN configuration) */
+
+
+#define _USE_LFN 0 /* 0 to 3 */
+#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 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 LFN feature, Unicode handling functions ff_convert() and ff_wtoupper()
+/ function 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 /* 0:ANSI/OEM or 1:Unicode */
+/* To switch the character encoding on the FatFs API (TCHAR) to Unicode, enable LFN
+/ feature and set _LFN_UNICODE to 1. This option affects behavior of string I/O
+/ functions. This option must be 0 when LFN feature is not enabled. */
+
+
+#define _STRF_ENCODE 3 /* 0:ANSI/OEM, 1:UTF-16LE, 2:UTF-16BE, 3:UTF-8 */
+/* When Unicode API is enabled by _LFN_UNICODE option, 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(). This option has no effect when _LFN_UNICODE == 0. Note that
+/ FatFs supports only BMP. */
+
+
+#define _FS_RPATH 0U /* 0 to 2 */
+/* The _FS_RPATH option configures relative path feature.
+/
+/ 0: Disable relative path feature and remove related functions.
+/ 1: Enable relative path. f_chdrive() and f_chdir() function are available.
+/ 2: f_getcwd() function is available in addition to 1.
+/
+/ Note that output of the f_readdir() fnction is affected by this option. */
+
+
+/*---------------------------------------------------------------------------/
+/ Drive/Volume Configurations
+/---------------------------------------------------------------------------*/
+
+#define _VOLUMES 1U
+/* Number of volumes (logical drives) to be used. */
+
+
+#define _STR_VOLUME_ID 0 /* 0:Use only 0-9 for drive ID, 1:Use strings for drive ID */
+#define _VOLUME_STRS "RAM","NAND","CF","SD1","SD2","USB1","USB2","USB3"
+/* 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: 0-9 and A-Z. */
+
+
+#define _MULTI_PARTITION 0 /* 0:Single partition, 1:Enable multiple partition */
+/* By default(0), each logical drive number is bound to the same physical drive number
+/ and only a FAT volume found on the physical drive is mounted. When it is set to 1,
+/ each logical drive number is bound to arbitrary drive/partition listed in VolToPart[].
+*/
+
+
+#define _MIN_SS 512U
+#define _MAX_SS 512U
+/* These options configure the range of sector size to be supported. (512, 1024, 2048 or
+/ 4096) Always set both 512 for most systems, all memory card 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_ERASE 0 /* 0:Disable or 1:Enable */
+/* To enable sector erase feature, set _USE_ERASE to 1. Also CTRL_ERASE_SECTOR command
+/ should be added to the disk_ioctl() function. */
+
+
+#define _FS_NOFSINFO 0 /* 0 to 3 */
+/* 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 last allocated cluster number as bit 0.
+/
+/ 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_LOCK 0 /* 0:Disable or >=1:Enable */
+/* To enable file lock control feature, set _FS_LOCK to non-zero value.
+/ The value defines how many files/sub-directories can be opened simultaneously
+/ with file lock control. This feature uses bss _FS_LOCK * 12 bytes. */
+
+
+#define _FS_REENTRANT 0 /* 0:Disable or 1:Enable */
+#define _FS_TIMEOUT 1000 /* Timeout period in unit of time tick */
+#define _SYNC_t HANDLE /* O/S dependent sync object type. e.g. HANDLE, OS_EVENT*, ID, SemaphoreHandle_t and etc.. */
+/* The _FS_REENTRANT option switches the re-entrancy (thread safe) of the FatFs module.
+/
+/ 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.
+*/
+
+
+#define _WORD_ACCESS 0 /* 0 or 1 */
+/* 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 for ALL instructions.
+/ * Byte order on the memory is little-endian.
+/
+/ If it is the case, _WORD_ACCESS can also be set to 1 to improve performance and
+/ reduce code size. Following table shows an example of some processor types.
+/
+/ ARM7TDMI 0 ColdFire 0 V850E 0
+/ Cortex-M3 0 Z80 0/1 V850ES 0/1
+/ Cortex-M0 0 RX600(LE) 0/1 TLCS-870 0/1
+/ AVR 0/1 RX600(BE) 0 TLCS-900 0/1
+/ AVR32 0 RL78 0 R32C 0
+/ PIC18 0/1 SH-2 0 M16C 0/1
+/ PIC24 0 H8S 0 MSP430 0
+/ PIC32 0 H8/300H 0 x86 0/1
+*/
+
+
+#endif /* _FFCONF */
diff --git a/lib/sw_services/xilffs/src/include/integer.h b/lib/sw_services/xilffs/src/include/integer.h
new file mode 100644
index 00000000..f254b2a0
--- /dev/null
+++ b/lib/sw_services/xilffs/src/include/integer.h
@@ -0,0 +1,33 @@
+/*-------------------------------------------*/
+/* Integer type definitions for FatFs module */
+/*-------------------------------------------*/
+
+#ifndef _FF_INTEGER
+#define _FF_INTEGER
+
+#ifdef _WIN32 /* FatFs development platform */
+
+#include
+#include
+
+#else /* Embedded platform */
+
+/* This type MUST be 8 bit */
+typedef unsigned char BYTE;
+
+/* These types MUST be 16 bit */
+typedef short SHORT;
+typedef unsigned short WORD;
+typedef unsigned short WCHAR;
+
+/* These types MUST be 16 bit or 32 bit */
+typedef int INT;
+typedef unsigned int UINT;
+
+/* These types MUST be 32 bit */
+typedef long LONG;
+typedef unsigned long DWORD;
+
+#endif
+
+#endif