132 lines
3.1 KiB
Plaintext
132 lines
3.1 KiB
Plaintext
# Copyright (c) 2016 Intel Corporation
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# Copyright (c) 2020 Nordic Semiconductor ASA
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# SPDX-License-Identifier: Apache-2.0
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config FAT_FILESYSTEM_ELM
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bool "ELM FAT file system support"
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depends on FILE_SYSTEM
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select DISK_ACCESS
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help
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Use the ELM FAT File system implementation.
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if FAT_FILESYSTEM_ELM
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menu "ELM FAT file system settings"
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visible if FAT_FILESYSTEM_ELM
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config FS_FATFS_READ_ONLY
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bool "Read-only support for all volumes"
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help
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The option excludes write code from ELM FAT file system driver;
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when selected, it no longer will be possible to write data on
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the FAT FS.
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If write support is not needed, enabling this flag will slightly
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reduce application size.
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This option translates to _FS_READONLY within ELM FAT file system
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driver; it enables exclusion, from compilation, of write supporting
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code.
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config FS_FATFS_MKFS
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bool
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help
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This option translates to _USE_MKFS within ELM FAT file system
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driver; it enables additional code that is required for formatting
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volumes to ELM FAT.
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config FS_FATFS_MOUNT_MKFS
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bool "Allow formatting volume when mounting fails"
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default y
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select FS_FATFS_MKFS
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help
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This option adds code that allows fs_mount to attempt to format
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a volume if no file system is found.
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If formatting is not needed, disabling this flag will slightly
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reduce application size.
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config FS_FATFS_EXFAT
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bool "Enable exFAT support"
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select FS_FATFS_LFN
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help
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Enable the exFAT format support for FatFs.
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config FS_FATFS_NUM_FILES
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int "Maximum number of opened files"
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default 4
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config FS_FATFS_NUM_DIRS
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int "Maximum number of opened directories"
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default 4
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config FS_FATFS_LFN
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bool "Enable long filenames (LFN)"
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help
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Without long filenames enabled, file names are limited to 8.3 format.
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This option increases working buffer size.
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if FS_FATFS_LFN
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choice
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prompt "LFN memory mode"
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default FS_FATFS_LFN_MODE_BSS
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config FS_FATFS_LFN_MODE_BSS
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bool "Static buffer"
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help
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Enable LFN with static working buffer on the BSS. Always NOT thread-safe.
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config FS_FATFS_LFN_MODE_STACK
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bool "Stack buffer"
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help
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Enable LFN with dynamic working buffer on the STACK.
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config FS_FATFS_LFN_MODE_HEAP
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bool "Heap buffer"
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help
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Enable LFN with dynamic working buffer on the HEAP.
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endchoice
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config FS_FATFS_MAX_LFN
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int "Max filename length"
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range 12 255
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default 255
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help
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The working buffer occupies (FS_FATFS_MAX_LFN + 1) * 2 bytes and
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additional 608 bytes at exFAT enabled.
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It should be set 255 to support full featured LFN operations.
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endif # FS_FATFS_LFN
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config FS_FATFS_CODEPAGE
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int "FatFS code page (character set)"
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default 437 if FS_FATFS_LFN
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default 1
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help
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Valid code page values:
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1 - ASCII (No extended character. Non-LFN cfg. only)
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437 - U.S.
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720 - Arabic
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737 - Greek
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771 - KBL
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775 - Baltic
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850 - Latin 1
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852 - Latin 2
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855 - Cyrillic
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857 - Turkish
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860 - Portuguese
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861 - Icelandic
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862 - Hebrew
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863 - Canadian French
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864 - Arabic
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865 - Nordic
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866 - Russian
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869 - Greek 2
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932 - Japanese (DBCS)
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936 - Simplified Chinese (DBCS)
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949 - Korean (DBCS)
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950 - Traditional Chinese (DBCS)
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endmenu
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endif # FAT_FILESYSTEM_ELM
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