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storage/flash_map: Add FIXED_PARTITION_BY_NODE macro

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Macro allows to instantiate flash_area object pointer from DTS node.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
This commit is contained in:
Dominik Ermel 2024-12-04 18:37:53 +01:00 committed by Benjamin Cabé
parent 2672a3a9cb
commit 54435e000a
2 changed files with 19 additions and 0 deletions
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10
include/zephyr/storage/flash_map.h
View file

@ -419,6 +419,16 @@ uint8_t flash_area_erased_val(const struct flash_area *fa);
* @return Pointer to flash_area type object representing partition
*/
#define FIXED_PARTITION(label) FIXED_PARTITION_1(DT_NODELABEL(label))
/**
* Get pointer to flash_area object by partition node in DTS
*
* @param node DTS node of a partition
*
* @return Pointer to flash_area type object representing partition
*/
#define FIXED_PARTITION_BY_NODE(node) FIXED_PARTITION_1(node)
#define FIXED_PARTITION_1(node) FIXED_PARTITION_0(DT_DEP_ORD(node))
#define FIXED_PARTITION_0(ord) \
((const struct flash_area *)&DT_CAT(global_fixed_partition_ORD_, ord))

9
tests/subsys/storage/flash_map/src/main.c
View file

@ -30,6 +30,11 @@ ZTEST(flash_map, test_flash_area_disabled_device)
zassert_equal(rc, -ENOENT, "Open did not fail");
rc = flash_area_open(FIXED_PARTITION_ID(disabled_b), &fa);
zassert_equal(rc, -ENOENT, "Open did not fail");
/* Note lack of tests for FIXED_PARTITION(...) instantiation,
* because this macro will fail, at compile time, if node does not
* exist or is disabled.
*/
}
ZTEST(flash_map, test_flash_area_device_is_ready)
@ -143,6 +148,10 @@ ZTEST(flash_map, test_fixed_partition_node_macros)
DT_REG_SIZE(SLOT1_PARTITION_NODE));
zassert_equal(FIXED_PARTITION_NODE_DEVICE(SLOT1_PARTITION_NODE),
DEVICE_DT_GET(DT_MTD_FROM_FIXED_PARTITION(SLOT1_PARTITION_NODE)));
/* Taking by node and taking by label should give same device */
zassert_equal(FIXED_PARTITION_BY_NODE(DT_NODELABEL(SLOT1_PARTITION)),
FIXED_PARTITION(SLOT1_PARTITION));
}
ZTEST(flash_map, test_flash_area_erase_and_flatten)