// Copyright 2015-2016 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_EVENT_H__
#define __ESP_EVENT_H__
#include <stdint.h>
#include <stdbool.h>
#include "esp_err.h"
#include "esp_wifi_types.h"
#include "tcpip_adapter.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
SYSTEM_EVENT_WIFI_READY = 0, /**< ESP32 WiFi ready */
SYSTEM_EVENT_SCAN_DONE, /**< ESP32 finish scanning AP */
SYSTEM_EVENT_STA_START, /**< ESP32 station start */
SYSTEM_EVENT_STA_STOP, /**< ESP32 station stop */
SYSTEM_EVENT_STA_CONNECTED, /**< ESP32 station connected to AP */
SYSTEM_EVENT_STA_DISCONNECTED, /**< ESP32 station disconnected from AP */
SYSTEM_EVENT_STA_AUTHMODE_CHANGE, /**< the auth mode of AP connected by ESP32 station changed */
SYSTEM_EVENT_STA_GOT_IP, /**< ESP32 station got IP from connected AP */
SYSTEM_EVENT_STA_LOST_IP, /**< ESP32 station lost IP and the IP is reset to 0 */
SYSTEM_EVENT_STA_WPS_ER_SUCCESS, /**< ESP32 station wps succeeds in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_FAILED, /**< ESP32 station wps fails in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_TIMEOUT, /**< ESP32 station wps timeout in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_PIN, /**< ESP32 station wps pin code in enrollee mode */
SYSTEM_EVENT_STA_WPS_ER_PBC_OVERLAP, /*!< ESP32 station wps overlap in enrollee mode */
SYSTEM_EVENT_AP_START, /**< ESP32 soft-AP start */
SYSTEM_EVENT_AP_STOP, /**< ESP32 soft-AP stop */
SYSTEM_EVENT_AP_STACONNECTED, /**< a station connected to ESP32 soft-AP */
SYSTEM_EVENT_AP_STADISCONNECTED, /**< a station disconnected from ESP32 soft-AP */
SYSTEM_EVENT_AP_STAIPASSIGNED, /**< ESP32 soft-AP assign an IP to a connected station */
SYSTEM_EVENT_AP_PROBEREQRECVED, /**< Receive probe request packet in soft-AP interface */
SYSTEM_EVENT_GOT_IP6, /**< ESP32 station or ap or ethernet interface v6IP addr is preferred */
SYSTEM_EVENT_ETH_START, /**< ESP32 ethernet start */
SYSTEM_EVENT_ETH_STOP, /**< ESP32 ethernet stop */
SYSTEM_EVENT_ETH_CONNECTED, /**< ESP32 ethernet phy link up */
SYSTEM_EVENT_ETH_DISCONNECTED, /**< ESP32 ethernet phy link down */
SYSTEM_EVENT_ETH_GOT_IP, /**< ESP32 ethernet got IP from connected AP */
SYSTEM_EVENT_MAX
} system_event_id_t;
/* add this macro define for compatible with old IDF version */
#ifndef SYSTEM_EVENT_AP_STA_GOT_IP6
#define SYSTEM_EVENT_AP_STA_GOT_IP6 SYSTEM_EVENT_GOT_IP6
#endif
typedef enum {
WPS_FAIL_REASON_NORMAL = 0, /**< ESP32 WPS normal fail reason */
WPS_FAIL_REASON_RECV_M2D, /**< ESP32 WPS receive M2D frame */
WPS_FAIL_REASON_MAX
}system_event_sta_wps_fail_reason_t;
typedef struct {
uint32_t status; /**< status of scanning APs */
uint8_t number;
uint8_t scan_id;
} system_event_sta_scan_done_t;
typedef struct {
uint8_t ssid[32]; /**< SSID of connected AP */
uint8_t ssid_len; /**< SSID length of connected AP */
uint8_t bssid[6]; /**< BSSID of connected AP*/
uint8_t channel; /**< channel of connected AP*/
wifi_auth_mode_t authmode;
} system_event_sta_connected_t;
typedef struct {
uint8_t ssid[32]; /**< SSID of disconnected AP */
uint8_t ssid_len; /**< SSID length of disconnected AP */
uint8_t bssid[6]; /**< BSSID of disconnected AP */
uint8_t reason; /**< reason of disconnection */
} system_event_sta_disconnected_t;
typedef struct {
wifi_auth_mode_t old_mode; /**< the old auth mode of AP */
wifi_auth_mode_t new_mode; /**< the new auth mode of AP */
} system_event_sta_authmode_change_t;
typedef struct {
tcpip_adapter_ip_info_t ip_info;
bool ip_changed;
} system_event_sta_got_ip_t;
typedef struct {
uint8_t pin_code[8]; /**< PIN code of station in enrollee mode */
} system_event_sta_wps_er_pin_t;
typedef struct {
tcpip_adapter_if_t if_index;
tcpip_adapter_ip6_info_t ip6_info;
} system_event_got_ip6_t;
typedef struct {
uint8_t mac[6]; /**< MAC address of the station connected to ESP32 soft-AP */
uint8_t aid; /**< the aid that ESP32 soft-AP gives to the station connected to */
} system_event_ap_staconnected_t;
typedef struct {
uint8_t mac[6]; /**< MAC address of the station disconnects to ESP32 soft-AP */
uint8_t aid; /**< the aid that ESP32 soft-AP gave to the station disconnects to */
} system_event_ap_stadisconnected_t;
typedef struct {
int rssi; /**< Received probe request signal strength */
uint8_t mac[6]; /**< MAC address of the station which send probe request */
} system_event_ap_probe_req_rx_t;
typedef struct {
ip4_addr_t ip;
} system_event_ap_staipassigned_t;
typedef union {
system_event_sta_connected_t connected; /**< ESP32 station connected to AP */
system_event_sta_disconnected_t disconnected; /**< ESP32 station disconnected to AP */
system_event_sta_scan_done_t scan_done; /**< ESP32 station scan (APs) done */
system_event_sta_authmode_change_t auth_change; /**< the auth mode of AP ESP32 station connected to changed */
system_event_sta_got_ip_t got_ip; /**< ESP32 station got IP, first time got IP or when IP is changed */
system_event_sta_wps_er_pin_t sta_er_pin; /**< ESP32 station WPS enrollee mode PIN code received */
system_event_sta_wps_fail_reason_t sta_er_fail_reason;/**< ESP32 station WPS enrollee mode failed reason code received */
system_event_ap_staconnected_t sta_connected; /**< a station connected to ESP32 soft-AP */
system_event_ap_stadisconnected_t sta_disconnected; /**< a station disconnected to ESP32 soft-AP */
system_event_ap_probe_req_rx_t ap_probereqrecved; /**< ESP32 soft-AP receive probe request packet */
system_event_ap_staipassigned_t ap_staipassigned; /**< ESP32 soft-AP assign an IP to the station*/
system_event_got_ip6_t got_ip6; /**< ESP32 station　or ap or ethernet ipv6 addr state change to preferred */
} system_event_info_t;
typedef struct {
system_event_id_t event_id; /**< event ID */
system_event_info_t event_info; /**< event information */
} system_event_t;
typedef esp_err_t (*system_event_handler_t)(system_event_t *event);
/**
* @brief Send a event to event task
*
* @attention 1. Other task/modules, such as the TCPIP module, can call this API to send an event to event task
*
* @param system_event_t * event : event
*
* @return ESP_OK : succeed
* @return others : fail
*/
esp_err_t esp_event_send(system_event_t *event);
/**
* @brief Default event handler for system events
*
* This function performs default handling of system events.
* When using esp_event_loop APIs, it is called automatically before invoking the user-provided
* callback function.
*
* Applications which implement a custom event loop must call this function
* as part of event processing.
*
* @param event pointer to event to be handled
* @return ESP_OK if an event was handled successfully
*/
esp_err_t esp_event_process_default(system_event_t *event);
/**
* @brief Install default event handlers for Ethernet interface
*
*/
void esp_event_set_default_eth_handlers();
/**
* @brief Install default event handlers for Wi-Fi interfaces (station and AP)
*
*/
void esp_event_set_default_wifi_handlers();
#ifdef __cplusplus
}
#endif
#endif /* __ESP_EVENT_H__ */