Introduce API for get driver structure belongs to the flash_area.
Some more complex operation on flash areas might want to be done using
driver directly. It not make sense to wrap every possible flash related
operation by flash_map API.
For instance mcuboot will require this patch.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
This Patch add functionality for automatic generation of the flash map
using DTS description. Automatic generation allows to replace
C-hardcoded flash_map.
We generate a set of defines based on the index of a partiion:
#define DT_FLASH_AREA_<IDX>_OFFSET 0
#define DT_FLASH_AREA_<IDX>_SIZE 131072
#define DT_FLASH_AREA_<IDX>_DEV "FLASH_CTRL"
#define DT_FLASH_AREA_<IDX>_LABEL MCUBOOT
Additionally we also define:
#define DT_FLASH_AREA_NUM 4
and:
#define DT_FLASH_AREA_<PARTNAME>_ID 0
Signed-off-by: Findlay Feng <i@fengch.me>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Some applications might want to check whether flash_areas binds to
any flash drive in the system. It might be better to do that while
sanity check at application start-up then while regular run process.
Example of such application is the mcuboot.
This patch introduce such API for checking whether device bindings
were resolved properly during system startup.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Prior to this commit, `flash_area_layout()` was being passed a pointer
to the incorrect type (`uint32_t *` where `int *` was expected). This
caused the following warning to be reported:
```
[...]/subsys/storage/flash_map/flash_map.c: In
function 'flash_area_get_sectors':
[...]/subsys/storage/flash_map/flash_map.c:191:32:
warning: passing argument 2 of 'flash_area_layout' from incompatible
pointer type [-Wincompatible-pointer-types]
return flash_area_layout(idx, cnt, ret, get_sectors_cb, &data);
^~~
[...]/subsys/storage/flash_map/flash_map.c:136:12:
note: expected 'int *' but argument is of type 'uint32_t * {aka long
unsigned int *}'
static int flash_area_layout(int idx, int *cnt, void *ret,
^~~~~~~~~~~~~~~~~
```
This commit changes the argument type to `u32_t` for both functions.
Signed-off-by: Christopher Collins <ccollins@apache.org>
Moved fetch of flash device bindings to early initialization of the
application.
Device bindings are constant while the application is running so
it is better to fetch it at startup, and not every time flash_map
procedures are called.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Introduce flas_map module is abstraction over flash memory and its
driver for using flash memories along with description of
available flash areas.
Module provides simple API for write/read/erase and so one.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Anas Nashif