The FCB has been strongly tied to 0xff erased flash devices and this
commit adds support for other erase values.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Fix for not served error code in fcb_offset_last_n()
implementation.
Issue was reported by static code analyze scan.
Looks like the function might have failed silently
if aggressive access to the fcb instance
from another thread have been occurring while the function
have been processing the fcb storage.
fixes#20512
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Switch form using privater FCB error codes to
errno codes. FCB private codes convention were compatible
with <errno.h> codes:
- 0 mean success
- negative values mean errors
- similar error types.
There was no sense to kept private FCB error codes.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
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>
The return of memset is never checked. This patch explicitly ignore
the return to avoid MISRA-C violations.
The only directory excluded directory was ext/* since it contains
only imported code.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
It is faster to operate directly on flash_area pointer instead
of fetch it all the time using the fcb flash area id.
Also as f_area_id was needed only for get appropriate flash_area
pointer, so it is better to pass it only while initialization
the fcb and not store it in fcb instance data at all.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Previously flash_area structure was the parameter for the callback
function for transferring sector location info.
Now flash_sector is used so relevant flash_area is missing for
the callback.
This patch introduces structure fcb_entry_ctx which incorporates
entries' location and relevant flash area. It is used to pass complete
information to the callback. Additional pointer to the flash_area fcb
speeds up operations.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Prior to this commit: `struct fcb` contained a pointer to an array of
`struct flash_area`. Each entry in the array represented a flash sector
that the fcb comprised.
After commit: `struct fcb` contains a pointer to an array of `struct
flash_sector`, not `struct flash_area`.
Rationale: The FCB needs to know which sectors it occupies for its
rotate operation. However, the `flash_area` type is meant to represent
a collection of sectors, not a single sector. `struct flash_area`
contains information that the fcb does not need (e.g., area ID and
device ID). Furthermore, the flash_map API provides a means of
converting a flash area ID to an array of sectors
(`flash_area_get_sectors()`), but no way to convert to an array of
areas.
Signed-off-by: Christopher Collins <ccollins@apache.org>
Zephyr already supports NFFS as a storage layer, but it might
be a little bit too heavyweight for certain applications in
memory-restricted ICs.
This module is response for need of Lightweight flash storage
capability. FCB is ported form MyNewt as native zephyr module.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
