47 lines
965 B
C
47 lines
965 B
C
/*
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* Copyright (c) 2023, Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/devicetree.h>
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#include <zephyr/retention/retention.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(bootmode, CONFIG_RETENTION_LOG_LEVEL);
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static const struct device *boot_mode_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_boot_mode));
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int bootmode_check(uint8_t boot_mode)
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{
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int rc;
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rc = retention_is_valid(boot_mode_dev);
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if (rc == 1 || rc == -ENOTSUP) {
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uint8_t stored_mode;
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rc = retention_read(boot_mode_dev, 0, &stored_mode, sizeof(stored_mode));
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/* Only check if modes match if there was no error, otherwise return the error */
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if (rc == 0) {
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if (stored_mode == boot_mode) {
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rc = 1;
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}
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}
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}
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return rc;
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}
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int bootmode_set(uint8_t boot_mode)
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{
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return retention_write(boot_mode_dev, 0, &boot_mode, sizeof(boot_mode));
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}
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int bootmode_clear(void)
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{
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return retention_clear(boot_mode_dev);
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}
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