119 lines
2.3 KiB
C
119 lines
2.3 KiB
C
/*
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* Copyright (c) 2017-2021 Nordic Semiconductor ASA
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* Copyright (c) 2015 Runtime Inc
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* Copyright (c) 2017 Linaro Ltd
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* Copyright (c) 2020 Gerson Fernando Budke <nandojve@gmail.com>
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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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#include <errno.h>
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#include <zephyr/types.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <zephyr/device.h>
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#include <zephyr/storage/flash_map.h>
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#include "flash_map_priv.h"
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#include <zephyr/drivers/flash.h>
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#include <zephyr/init.h>
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void flash_area_foreach(flash_area_cb_t user_cb, void *user_data)
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{
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for (int i = 0; i < flash_map_entries; i++) {
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user_cb(&flash_map[i], user_data);
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}
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}
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int flash_area_open(uint8_t id, const struct flash_area **fap)
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{
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const struct flash_area *area;
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if (flash_map == NULL) {
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return -EACCES;
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}
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area = get_flash_area_from_id(id);
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if (area == NULL) {
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return -ENOENT;
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}
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if (!area->fa_dev || !device_is_ready(area->fa_dev)) {
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return -ENODEV;
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}
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*fap = area;
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return 0;
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}
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void flash_area_close(const struct flash_area *fa)
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{
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/* nothing to do for now */
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}
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int flash_area_read(const struct flash_area *fa, off_t off, void *dst,
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size_t len)
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{
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if (!is_in_flash_area_bounds(fa, off, len)) {
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return -EINVAL;
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}
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return flash_read(fa->fa_dev, fa->fa_off + off, dst, len);
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}
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int flash_area_write(const struct flash_area *fa, off_t off, const void *src,
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size_t len)
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{
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if (!is_in_flash_area_bounds(fa, off, len)) {
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return -EINVAL;
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}
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return flash_write(fa->fa_dev, fa->fa_off + off, (void *)src, len);
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}
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int flash_area_erase(const struct flash_area *fa, off_t off, size_t len)
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{
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if (!is_in_flash_area_bounds(fa, off, len)) {
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return -EINVAL;
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}
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return flash_erase(fa->fa_dev, fa->fa_off + off, len);
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}
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uint32_t flash_area_align(const struct flash_area *fa)
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{
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return flash_get_write_block_size(fa->fa_dev);
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}
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int flash_area_has_driver(const struct flash_area *fa)
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{
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if (!device_is_ready(fa->fa_dev)) {
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return -ENODEV;
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}
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return 1;
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}
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const struct device *flash_area_get_device(const struct flash_area *fa)
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{
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return fa->fa_dev;
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}
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#if CONFIG_FLASH_MAP_LABELS
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const char *flash_area_label(const struct flash_area *fa)
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{
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return fa->fa_label;
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}
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#endif
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uint8_t flash_area_erased_val(const struct flash_area *fa)
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{
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const struct flash_parameters *param;
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param = flash_get_parameters(fa->fa_dev);
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return param->erase_value;
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}
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