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

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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
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9
subsys/storage/flash_map/flash_map.c
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@ -264,6 +264,15 @@ u8_t flash_area_align(const struct flash_area *fa)
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)
{
unsigned int i;