984be5eb65
The commit adds FIXED_PARTITION(label) macro that allows to obtain struct flash_area object for partition of given label. The macro allows instantiation of partition at point of usage and will be replacing need for defining flash map with all partition entries. Area obtained with the macro should not be passed to open, instead flash_area_device_is_ready, basically equivalent of device_is_ready should be called on the obtained pointer to check if area is ready for use. Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* Copyright (c) 2017-2024 Nordic Semiconductor ASA
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* Copyright (c) 2015 Runtime Inc
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* Copyright (c) 2023 Sensorfy B.V.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT fixed_partitions
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#include <zephyr/device.h>
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#include <zephyr/kernel.h>
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#include <zephyr/storage/flash_map.h>
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#if CONFIG_FLASH_MAP_LABELS
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#define FLASH_AREA_FOO(part) \
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{.fa_id = DT_FIXED_PARTITION_ID(part), \
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.fa_off = DT_REG_ADDR(part), \
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.fa_dev = DEVICE_DT_GET(DT_MTD_FROM_FIXED_PARTITION(part)), \
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.fa_size = DT_REG_SIZE(part), \
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.fa_label = DT_PROP_OR(part, label, NULL), },
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#else
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#define FLASH_AREA_FOO(part) \
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{.fa_id = DT_FIXED_PARTITION_ID(part), \
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.fa_off = DT_REG_ADDR(part), \
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.fa_dev = DEVICE_DT_GET(DT_MTD_FROM_FIXED_PARTITION(part)), \
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.fa_size = DT_REG_SIZE(part), },
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#endif
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#define FLASH_AREA_FOOO(part) \
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COND_CODE_1(DT_NODE_HAS_STATUS_OKAY(DT_MTD_FROM_FIXED_PARTITION(part)), \
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(FLASH_AREA_FOO(part)), ())
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#define FOREACH_PARTITION(n) DT_FOREACH_CHILD(DT_DRV_INST(n), FLASH_AREA_FOOO)
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/* We iterate over all compatible 'fixed-partitions' nodes and
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* use DT_FOREACH_CHILD to iterate over all the partitions for that
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* 'fixed-partitions' node. This way we build a global partition map
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*/
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const struct flash_area default_flash_map[] = {
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DT_INST_FOREACH_STATUS_OKAY(FOREACH_PARTITION)
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};
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const int flash_map_entries = ARRAY_SIZE(default_flash_map);
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const struct flash_area *flash_map = default_flash_map;
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/* Generate objects representing each partition in system. In the end only
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* objects referenced by code will be included into build.
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*/
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#define DEFINE_PARTITION(part) DEFINE_PARTITION_1(part, DT_DEP_ORD(part))
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#define DEFINE_PARTITION_1(part, ord) \
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COND_CODE_1(DT_NODE_HAS_STATUS_OKAY(DT_MTD_FROM_FIXED_PARTITION(part)), \
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(DEFINE_PARTITION_0(part, ord)), ())
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#define DEFINE_PARTITION_0(part, ord) \
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const struct flash_area DT_CAT(global_fixed_partition_ORD_, ord) = { \
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.fa_id = DT_FIXED_PARTITION_ID(part), \
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.fa_off = DT_REG_ADDR(part), \
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.fa_dev = DEVICE_DT_GET(DT_MTD_FROM_FIXED_PARTITION(part)), \
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.fa_size = DT_REG_SIZE(part), \
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};
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#define FOR_EACH_PARTITION_TABLE(table) DT_FOREACH_CHILD(table, DEFINE_PARTITION)
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DT_FOREACH_STATUS_OKAY(fixed_partitions, FOR_EACH_PARTITION_TABLE)
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