Major changes are:
- Expose settings backend API to enable custom backend support.
- Add a new CONFIG_SETTINGS_CUSTOM backend to allow registering a custom
backend.
- Change api of the handlers h_set() routines to allow for
backend-specific read callbacks.
- Provide a customizable settings_backend_init() routine for custom
backends.
- Move runtime settings support to be its own backend.
Signed-off-by: François Delawarde <fnde@oticon.com>
This patch introduce logging to settings.
Error in stored data record might occurred in runtime, so
better to switch assertion to error logging.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
It was possible via Kconfig to assign any partition for FCB using
its number. Partitions flash_area_id becomes non predefined
(are auto-generated). So it is possible only to guess which
number will be signed to certain area.
Unfortunately it is not possible to transfer FLASH_AREA_XXX_ID
label via Kconfig.
Patch assigns settings to the storage partition and remove
SETTINGS_FCB_FLASH_AREA property from settings Kconfig.
fixes#13388
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Use the value extracted from DT instead of a hardcoded 4, as it is done
in commit 977b292d80 for tests.
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Thanks to previous commit base64 encoding of the settings
value is not required anymore for NFFS and FCB back-end.
This patch makes encoding an option in case it will be required
in the future.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
This patch reworks routines used to store and read the settings data.
Provide stream-style encoding and decoding to/from flash, so the the
API only requires a pointer to binary data, and the settings
implementation takes care of encoding/decoding to/from base64 and
writing/reading to/from flash on the fly. This would eliminate the
need of a separate base64 value buffer on the application-side, thereby
further contributing to the stack footprint reduction.
Above changes allows to remove:
256-byte value length limitation.
removing enum settings_type usage so all settings data are treated
now as a byte array (i.e. what's previously SETTINGS_BYTES)
Introduced routine settings_val_read_cb for read and decode the
settings data from storage inside h_set handler implementations.
h_set settings handler now provide persistent value's context
used along with read routine instead of immediately value.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though.
Remove some 'default ""' properties on string symbols too.
Also make definitions more consistent by converting some
config FOO
<type>
prompt "foo"
definitions to a shorter form:
config FOO
<type> "foo"
This shorthand works for int/hex/string symbols too, not just for bool
symbols.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Leading/trailing whitespace in prompts requires ugly workarounds in
genrest.py, as e.g. *prompt * is invalid RST. strip() all prompts in
Kconfiglib and get rid of the genrest.py workarounds. Add a warning too.
The Kconfiglib update has some unrelated cleanups and fixes (that won't
affect Zephyr).
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
If CONFIG_FLASH_PAGE_LAYOUT is not enabled, building the settings code
fails at the linking stage with the following error when FCB is the
backend.
libzephyr.a(settings_init.c.obj): In function `settings_init_fcb':
subsys/settings/src/settings_init.c:62: undefined reference to `flash_area_get_sectors'
collect2: error: ld returned 1 exit status
Also, the File System backend will currently only work with NFFS due
to fs_rename() missing from other File Systems (FAT in particular).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Adapt the MyNewt non-volatile configuration system to become a settings
system in Zephyr.
The original code was modifed in the following ways:
* Renamed from config to settings
* Use the zephyr FCB, FS API, and base64 subsystems
* lltoa like function was added to sources as it was required but not
included in Zephyr itself.
* The original code was modified to use Zephyr's slist.h as single
linked list implementation.
* Reworked code which was using strtok_r, added function
for decoding a string to a s64_t value.
* Thank to the above the settings subsys doesn't require newlibc anymore.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
François Delawarde