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