94 lines
2.4 KiB
Plaintext
94 lines
2.4 KiB
Plaintext
#
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# Copyright (c) 2018 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig SETTINGS
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bool "Enable settings subsystem with non-volatile storage"
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# Only NFFS is currently supported as FS.
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# The reason in that FatFs doesn't implement the fs_rename() API
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depends on (FILE_SYSTEM && FILE_SYSTEM_NFFS) || (FCB && FLASH_PAGE_LAYOUT)
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help
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The settings subsystem allows its users to serialize and
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deserialize state in memory into and from non-volatile memory.
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It supports several back-ends to store and load serialized data from
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and it can do so atomically for all involved modules.
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# Hidden option to enable encoding length into settings entry
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config SETTINGS_ENCODE_LEN
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depends on SETTINGS
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bool
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config SETTINGS_USE_BASE64
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bool "encoding value using base64"
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depends on SETTINGS
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select BASE64
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help
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Enables values encoding using Base64.
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choice
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prompt "Storage back-end"
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default SETTINGS_FCB if FCB
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depends on SETTINGS
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help
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Storage back-end to be used by the settings subsystem.
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config SETTINGS_FCB
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bool "FCB"
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depends on FCB
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help
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Use FCB as a settings storage back-end.
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config SETTINGS_FS
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bool "File System"
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depends on FILE_SYSTEM
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select SETTINGS_ENCODE_LEN
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help
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Use a file system as a settings storage back-end.
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endchoice
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config SETTINGS_FCB_NUM_AREAS
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int "Number of flash areas used by the settings subsystem"
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default 8
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depends on SETTINGS && SETTINGS_FCB
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help
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Number of areas to allocate in the settings FCB. A smaller number is
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used if the flash hardware cannot support this value.
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config SETTINGS_FCB_MAGIC
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hex "FCB magic for the settings subsystem"
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default 0xc0ffeeee
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depends on SETTINGS && SETTINGS_FCB
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help
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Magic 32-bit word for to identify valid settings area
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config SETTINGS_FCB_FLASH_AREA
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int "Flash area id used for settings"
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default 4
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depends on SETTINGS && SETTINGS_FCB
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help
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Id of the Flash area where FCB instance used for settings is
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expected to operate.
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config SETTINGS_FS_DIR
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string "Serialization directory"
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default "/settings"
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depends on SETTINGS && SETTINGS_FS
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help
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Directory where the settings data is stored
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config SETTINGS_FS_FILE
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string "Default settings file"
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default "/settings/run"
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depends on SETTINGS && SETTINGS_FS
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help
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Full path to the default settings file.
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config SETTINGS_FS_MAX_LINES
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int "Compression threshold"
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default 32
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depends on SETTINGS && SETTINGS_FS
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help
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Limit how many items stored in a file before compressing
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