move fcb.h to fs/fcb.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
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>
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>
