unleashed-firmware/applications/services/bt/bt_settings.c

#include "bt_settings.h"
#include "bt_settings_filename.h"

#include <furi.h>
#include <storage/storage.h>
#include <toolbox/saved_struct.h>

#define TAG "BtSettings"

#define BT_SETTINGS_PATH    INT_PATH(BT_SETTINGS_FILE_NAME)
#define BT_SETTINGS_VERSION (0)
#define BT_SETTINGS_MAGIC   (0x19)

void bt_settings_load(BtSettings* bt_settings) {
    furi_assert(bt_settings);

    const bool success = saved_struct_load(
        BT_SETTINGS_PATH, bt_settings, sizeof(BtSettings), BT_SETTINGS_MAGIC, BT_SETTINGS_VERSION);

    if(!success) {
        FURI_LOG_W(TAG, "Failed to load settings, using defaults");
        memset(bt_settings, 0, sizeof(BtSettings));
        bt_settings_save(bt_settings);
    }
}

void bt_settings_save(const BtSettings* bt_settings) {
    furi_assert(bt_settings);

    const bool success = saved_struct_save(
        BT_SETTINGS_PATH, bt_settings, sizeof(BtSettings), BT_SETTINGS_MAGIC, BT_SETTINGS_VERSION);

    if(!success) {
        FURI_LOG_E(TAG, "Failed to save settings");
    }
}