text: /*
   * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
   *
   * SPDX-License-Identifier: Apache-2.0
   */
  
  #ifndef _BLE_MESH_SETTINGS_NVS_H_
  #define _BLE_MESH_SETTINGS_NVS_H_
  
  #include "nvs_flash.h"
  #include "mesh_buf.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  typedef nvs_handle_t    bt_mesh_nvs_handle_t;
  
  #define SETTINGS_ITEM_SIZE              sizeof(uint16_t)
  
  #define BLE_MESH_GET_ELEM_IDX(x)        ((uint8_t)((x) >> 8))
  #define BLE_MESH_GET_MODEL_IDX(x)       ((uint8_t)(x))
  #define BLE_MESH_GET_MODEL_KEY(a, b)    ((uint16_t)(((uint16_t)((a) << 8)) | (b)))
  
  int bt_mesh_settings_nvs_open(const char* name, bt_mesh_nvs_handle_t *handle);
  void bt_mesh_settings_nvs_close(bt_mesh_nvs_handle_t handle);
  
  void bt_mesh_settings_init_foreach(void);
  void bt_mesh_settings_deinit_foreach(bool erase);
  
  int bt_mesh_settings_direct_open(bt_mesh_nvs_handle_t *handle);
  void bt_mesh_settings_direct_close(void);
  
  int bt_mesh_save_settings(bt_mesh_nvs_handle_t handle, const char *key,
                            const uint8_t *val, size_t len);
  int bt_mesh_save_core_settings(const char *key, const uint8_t *val, size_t len);
  int bt_mesh_save_uid_settings(const char *key, const uint8_t *val, size_t len);
  
  int bt_mesh_erase_settings(bt_mesh_nvs_handle_t handle, const char *key);
  int bt_mesh_erase_core_settings(const char *key);
  int bt_mesh_erase_uid_settings(const char *name);
  
  int bt_mesh_load_settings(bt_mesh_nvs_handle_t handle, const char *key,
                            uint8_t *buf, size_t buf_len, bool *exist);
  int bt_mesh_load_core_settings(const char *key, uint8_t *buf, size_t buf_len, bool *exist);
  int bt_mesh_load_uid_settings(const char *key, uint8_t *buf, size_t buf_len, bool *exist);
  
  struct net_buf_simple *bt_mesh_get_settings_item(bt_mesh_nvs_handle_t handle, const char *key);
  struct net_buf_simple *bt_mesh_get_core_settings_item(const char *key);
  struct net_buf_simple *bt_mesh_get_uid_settings_item(const char *key);
  
  int bt_mesh_add_settings_item(bt_mesh_nvs_handle_t handle, const char *key, const uint16_t val);
  int bt_mesh_add_core_settings_item(const char *key, const uint16_t val);
  int bt_mesh_add_uid_settings_item(const char *key, const uint16_t val);
  
  int bt_mesh_remove_settings_item(bt_mesh_nvs_handle_t handle, const char *key, const uint16_t val);
  int bt_mesh_remove_core_settings_item(const char *key, const uint16_t val);
  int bt_mesh_remove_uid_settings_item(const char *key, const uint16_t val);
  
  int bt_mesh_settings_erase_key(bt_mesh_nvs_handle_t handle, const char *key);
  int bt_mesh_settings_erase_all(bt_mesh_nvs_handle_t handle);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _BLE_MESH_SETTINGS_NVS_H_ */
  