// Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_MESH_INTERNAL_H__
#define __ESP_MESH_INTERNAL_H__
#include "esp_err.h"
#include "esp_wifi.h"
#include "esp_wifi_types.h"
#include "esp_wifi_internal.h"
#include "esp_wifi_crypto_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************
* Constants
*******************************************************/
/*******************************************************
* Structures
*******************************************************/
typedef struct {
int scan; /**< minimum scan times before being a root, default:10. */
int vote; /**< max vote times in self-healing, default:1000. */
int fail; /**< parent selection fail times. If the scan times reach this value,
device will disconnect with associated children and join self-healing, default:120. */
int monitor_ie; /**< acceptable times of parent networking IE change before update self networking IE, default:10. */
} mesh_attempts_t;
typedef struct {
int duration_ms; /* parent weak RSSI monitor duration. If the RSSI with current parent is less than cnx_rssi continuously
within this duration_ms, device will search for a better parent. */
int cnx_rssi; /* RSSI threshold for keeping a good connection with parent.
If set a value greater than -120 dBm, device will arm a timer to monitor current RSSI at a period time of
duration_ms. */
int select_rssi; /* RSSI threshold for parent selection, should be a value greater than switch_rssi. */
int switch_rssi; /* RSSI threshold for parent switch. Device will disassociate current parent and switch to a new parent when
the RSSI with the new parent is greater than this set threshold. */
int backoff_rssi; /* RSSI threshold for connecting to the root */
} mesh_switch_parent_t;
typedef struct {
int high;
int medium;
int low;
} mesh_rssi_threshold_t;
/**
* @brief mesh networking IE
*/
typedef struct {
/**< mesh networking IE head */
uint8_t eid; /**< element ID */
uint8_t len; /**< element length */
uint8_t oui[3]; /**< organization identifier */
/**< mesh networking IE content */
uint8_t type; /** ESP defined IE type */
uint8_t encryped : 1; /**< whether mesh networking IE is encrypted */
uint8_t version : 7; /**< mesh networking IE version */
/**< content */
uint8_t mesh_type; /**< mesh device type */
uint8_t mesh_id[6]; /**< mesh ID */
uint8_t layer_cap; /**< max layer */
uint8_t layer; /**< current layer */
uint8_t assoc_cap; /**< max connections of mesh AP */
uint8_t assoc; /**< current connections */
uint8_t leaf_cap; /**< leaf capacity */
uint8_t leaf_assoc; /**< the number of current connected leaf */
uint16_t root_cap; /**< root capacity */
uint16_t self_cap; /**< self capacity */
uint16_t layer2_cap; /**< layer2 capacity */
uint16_t scan_ap_num; /**< the number of scanned APs */
int8_t rssi; /**< RSSI of the parent */
int8_t router_rssi; /**< RSSI of the router */
uint8_t flag; /**< flag of networking */
uint8_t rc_addr[6]; /**< root address */
int8_t rc_rssi; /**< root RSSI */
uint8_t vote_addr[6]; /**< voter address */
int8_t vote_rssi; /**< vote RSSI of the router */
uint8_t vote_ttl; /**< vote ttl */
uint16_t votes; /**< votes */
uint16_t my_votes; /**< my votes */
uint8_t reason; /**< reason */
uint8_t child[6]; /**< child address */
uint8_t toDS; /**< toDS state */
} __attribute__((packed)) mesh_assoc_t;
/*******************************************************
* Function Definitions
*******************************************************/
/**
* @brief set mesh softAP beacon interval
*
* @param interval beacon interval(ms) (100ms ~ 60000ms)
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_WIFI_ARG
*/
esp_err_t esp_mesh_set_beacon_interval(int interval_ms);
/**
* @brief get mesh softAP beacon interval
*
* @param interval beacon interval(ms)
*
* @return
* - ESP_OK
*/
esp_err_t esp_mesh_get_beacon_interval(int *interval_ms);
/**
* @brief set attempts for mesh self-organized networking
*
* @param attempts
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_set_attempts(mesh_attempts_t *attempts);
/**
* @brief get attempts for mesh self-organized networking
*
* @param attempts
*
* @return
* - ESP_OK
* - ESP_ERR_MESH_ARGUMENT
*/
esp_err_t esp_mesh_get_attempts(mesh_attempts_t *attempts);
/**
* @brief set parameters for parent switch
*
* @param paras parameters for parent switch
*
* @return
* - ESP_OK
* - ESP_ERR_MESH_ARGUMENT
*/
esp_err_t esp_mesh_set_switch_parent_paras(mesh_switch_parent_t *paras);
/**
* @brief get parameters for parent switch
*
* @param paras parameters for parent switch
*
* @return
* - ESP_OK
* - ESP_ERR_MESH_ARGUMENT
*/
esp_err_t esp_mesh_get_switch_parent_paras(mesh_switch_parent_t *paras);
/**
* @brief set RSSI threshold
* The default high RSSI threshold value is -78 dBm.
* The default medium RSSI threshold value is -82 dBm.
* The default low RSSI threshold value is -85 dBm.
*
* @param threshold RSSI threshold
*
* @return
* - ESP_OK
* - ESP_ERR_MESH_ARGUMENT
*/
esp_err_t esp_mesh_set_rssi_threshold(const mesh_rssi_threshold_t *threshold);
/**
* @brief get RSSI threshold
* @param threshold RSSI threshold
*
* @return
* - ESP_OK
* - ESP_ERR_MESH_ARGUMENT
*/
esp_err_t esp_mesh_get_rssi_threshold(mesh_rssi_threshold_t *threshold);
/**
* @brief enable the minimum rate to 6Mbps
*
* @attention This API shall be called before WiFi start.
*
* @param is_6m enable or not
*
* @return
* - ESP_OK
*/
esp_err_t esp_mesh_set_6m_rate(bool is_6m);
/**
* @brief print the number of txQ waiting
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_print_txQ_waiting(void);
/**
* @brief print the number of rxQ waiting
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_print_rxQ_waiting(void);
/**
* @brief set passive scan time
*
* @param interval_ms passive scan time(ms)
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_ARGUMENT
*/
esp_err_t esp_mesh_set_passive_scan_time(int time_ms);
/**
* @brief get passive scan time
*
* @return interval_ms passive scan time(ms)
*/
int esp_mesh_get_passive_scan_time(void);
/**
* @brief set announce interval
* The default short interval is 500 milliseconds.
* The default long interval is 3000 milliseconds.
*
* @param short_ms shall be greater than the default value
* @param long_ms shall be greater than the default value
*
* @return
* - ESP_OK
*/
esp_err_t esp_mesh_set_announce_interval(int short_ms, int long_ms);
/**
* @brief get announce interval
*
* @param short_ms short interval
* @param long_ms long interval
*
* @return
* - ESP_OK
*/
esp_err_t esp_mesh_get_announce_interval(int *short_ms, int *long_ms);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_MESH_INTERNAL_H__ */