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- #
- # For a description of the syntax of this configuration file,
- # see the file kconfig-language.txt in the NuttX tools repository.
- #
- config FS_SPIFFS
- bool "SPIFFS File System"
- default n
- select FS_READABLE
- select FS_WRITABLE
- depends on !DISABLE_MOUNTPOINT
- ---help---
- Build the SPIFFS file system. This is a port of version 0.3.7 of
- the SPIFFS file system by Peter Andersson. It was originally
- released under the MIT license.
- if FS_SPIFFS
- comment "In-memory Cache Options"
- config SPIFFS_CACHE_SIZE
- int "Size of the cache"
- default 8192
- config SPIFFS_CACHE_HITSCORE
- int "Cache Hit Score"
- default 4
- range 1 255
- ---help---
- Temporal file cache hit score. Each time a file is opened, all
- cached files will lose one point. If the opened file is found in
- cache, that entry will gain CONFIG_SPIFFS_CACHE_HITSCORE points.
- One can experiment with this value for the specific access patterns
- of the application. However, it must be between 1 (no gain for
- hitting a cached entry often) and 255.
- config SPIFFS_CACHEDBG
- bool "Enable cache debug output"
- default n
- depends on DEBUG_FS_INFO
- ---help---
- Dumps cache debug output. Depends on CONFIG_DEBUG_FS_INFO
- comment "Garbage Collection (GC) Options"
- config SPIFFS_GC_MAXRUNS
- int "Max GC runs"
- default 5
- ---help---
- Define maximum number of gc runs to perform to reach desired free
- pages.
- config SPIFFS_GC_DELWGT
- int "Deleted pages weight"
- default 5
- ---help---
- Garbage collecting examines all pages in a block which and sums up
- to a block score. Deleted pages normally gives positive score and
- used pages normally gives a negative score (as these must be moved).
- To have a fair wear-leveling, the erase age is also included in
- score, whose factor normally is the most positive. The larger the
- score, the more likely it is that the block will picked for garbage
- collection.
- This option provides the weight used for deleted pages.
- config SPIFFS_GC_USEDWGT
- int "Used pages weight"
- default -1
- ---help---
- Garbage collecting examines all pages in a block which and sums up
- to a block score. Deleted pages normally gives positive score and
- used pages normally gives a negative score (as these must be moved).
- To have a fair wear-leveling, the erase age is also included in
- score, whose factor normally is the most positive. The larger the
- score, the more likely it is that the block will picked for garbage
- collection.
- This option provides the weight used for used pages.
- config SPIFFS_GC_ERASEAGEWGT
- int "Used pages weight"
- default 50
- ---help---
- Garbage collecting examines all pages in a block which and sums up
- to a block score. Deleted pages normally gives positive score and
- used pages normally gives a negative score (as these must be moved).
- To have a fair wear-leveling, the erase age is also included in
- score, whose factor normally is the most positive. The larger the
- score, the more likely it is that the block will picked for garbage
- collection.
- This option provides the weight used weight used for time between
- last erased and erase of this block.
- config SPIFFS_GCDBG
- bool "Enable garbage collection debug output"
- default n
- depends on DEBUG_FS_INFO
- ---help---
- Dumps garbage collection debug output. Depends on CONFIG_DEBUG_FS_INFO
- comment "Consistency Check Options"
- config SPIFFS_CHECK_ONMOUNT
- bool "Consistency check on mount"
- default n
- select SPIFFS_CHECK_OUTPUT
- ---help---
- Perhaps a full, extended consistency check on mount. By default, a
- simple scan of the file system only is performed.
- config SPIFFS_CHECK_OUTPUT
- bool "Enable consistency check SYSLOG output"
- default n
- config SPIFFS_DUMP
- bool "Dump Logical FLASH Content"
- default n
- depends on SPIFFS_CHECK_OUTPUT
- ---help---
- Enables support for the FIOC_DUMP IOCTL command which will dump a
- terse summary of the state of each FLASH page.
- comment "MTD Interface Options"
- config SPIFFS_MTDDBG
- bool "Enable MTD Interface DEBUG"
- default n
- depends on DEBUG_FS_INFO
- ---help---
- Dumps MTD debug output. Depends on CONFIG_DEBUG_FS_INFO
- config SPIFFS_MTDDUMP
- bool "Enable MTD Data Dump"
- default n
- depends on SPIFFS_MTDDBG
- ---help---
- Dumps every byte of data going to and coming from FLASH. You
- probably do not want this unless you are debugging a particular
- MTD interfacing issue.
- comment "SPIFFS Core Options"
- config SPIFFS_NO_BLIND_WRITES
- bool "No blind writes"
- default n
- ---help---
- By default SPIFFS in some cases relies on the property of NOR flash
- that bits cannot be set from 0 to 1 by writing and that controllers
- will ignore such bit changes. This results in fewer reads as SPIFFS
- can in some cases perform blind writes, with all bits set to 1 and
- only those it needs reset set to 0. Most of the chips and
- controllers allow this behavior, so the default is to use this
- technique. If your controller is one of the rare ones that don't,
- turn this option on and SPIFFS will perform a read-modify-write
- instead.
- config SPIFFS_PAGE_CHECK
- bool "Check Page Headers"
- default y
- ---help---
- Always check header of each accessed page to ensure consistent state.
- If enabled it will increase number of reads, will increase flash.
- config SPIFFS_NAME_MAX
- int "Maximum Name Length"
- default 32
- ---help---
- Object name maximum length. Note that this length include the zero
- termination character, meaning maximum string of characters.
- config SPIFFS_COPYBUF_STACK
- int "Max Stack Allocation"
- default 64
- ---help---
- Size of buffer allocated on stack used when copying data. Lower
- value generates more read/writes. No meaning having it bigger
- than logical page size.
- endif # FS_SPIFFS
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