michaelh/zephyr
1
0
Fork 0
Code Releases Activity

subsys: storage: flash_map: add API for check flash driver support

Browse source 
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>
This commit is contained in:
Andrzej Puzdrowski 2018-08-06 17:52:09 +02:00 • committed by Carles Cufí
commit 5df93af87a
2 changed files with 19 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

10
include/flash_map.h
View file

@ -77,6 +77,16 @@ u8_t flash_area_align(const struct flash_area *fa);
int flash_area_get_sectors(int fa_id, u32_t *count, int flash_area_get_sectors(int fa_id, u32_t *count,
struct flash_sector *sectors); struct flash_sector *sectors);
/**
* Check whether given flash area has supporting flash driver
* in the system.
*
* @param fa Flash area.
*
* @return 1 On success. -ENODEV if no driver match.
*/
int flash_area_has_driver(const struct flash_area *fa);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

9
subsys/storage/flash_map/flash_map.c
View file

@ -264,6 +264,15 @@ u8_t flash_area_align(const struct flash_area *fa)
return flash_get_write_block_size(dev); return flash_get_write_block_size(dev);
} }
int flash_area_has_driver(const struct flash_area *fa)
{
if (get_flash_dev_from_id(fa->fa_device_id) == NULL) {
return -ENODEV;
}
return 1;
}
static int flash_map_init(struct device *dev) static int flash_map_init(struct device *dev)
{ {
unsigned int i; unsigned int i;