172 lines
6.6 KiB
C
172 lines
6.6 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __ESP_EVENT_H__
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#define __ESP_EVENT_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_wifi.h"
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#include "tcpip_adapter.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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SYSTEM_EVENT_WIFI_READY = 0, /**< ESP32 WiFi ready */
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SYSTEM_EVENT_SCAN_DONE, /**< ESP32 finish scanning AP */
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SYSTEM_EVENT_STA_START, /**< ESP32 station start */
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SYSTEM_EVENT_STA_STOP, /**< ESP32 station stop */
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SYSTEM_EVENT_STA_CONNECTED, /**< ESP32 station connected to AP */
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SYSTEM_EVENT_STA_DISCONNECTED, /**< ESP32 station disconnected from AP */
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SYSTEM_EVENT_STA_AUTHMODE_CHANGE, /**< the auth mode of AP connected by ESP32 station changed */
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SYSTEM_EVENT_STA_GOT_IP, /**< ESP32 station got IP from connected AP */
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SYSTEM_EVENT_AP_START, /**< ESP32 soft-AP start */
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SYSTEM_EVENT_AP_STOP, /**< ESP32 soft-AP stop */
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SYSTEM_EVENT_AP_STACONNECTED, /**< a station connected to ESP32 soft-AP */
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SYSTEM_EVENT_AP_STADISCONNECTED, /**< a station disconnected from ESP32 soft-AP */
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SYSTEM_EVENT_AP_PROBEREQRECVED, /**< Receive probe request packet in soft-AP interface */
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SYSTEM_EVENT_MAX
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} system_event_id_t;
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typedef struct {
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uint32_t status; /**< status of scanning APs */
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uint8_t number;
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uint8_t scan_id;
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} system_event_sta_scan_done_t;
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typedef struct {
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uint8_t ssid[32]; /**< SSID of connected AP */
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uint8_t ssid_len; /**< SSID length of connected AP */
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uint8_t bssid[6]; /**< BSSID of connected AP*/
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uint8_t channel; /**< channel of connected AP*/
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wifi_auth_mode_t authmode;
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} system_event_sta_connected_t;
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typedef struct {
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uint8_t ssid[32]; /**< SSID of disconnected AP */
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uint8_t ssid_len; /**< SSID length of disconnected AP */
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uint8_t bssid[6]; /**< BSSID of disconnected AP */
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uint8_t reason; /**< reason of disconnection */
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} system_event_sta_disconnected_t;
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typedef struct {
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wifi_auth_mode_t old_mode; /**< the old auth mode of AP */
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wifi_auth_mode_t new_mode; /**< the new auth mode of AP */
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} system_event_sta_authmode_change_t;
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typedef struct {
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tcpip_adapter_ip_info_t ip_info;
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} system_event_sta_got_ip_t;
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typedef struct {
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uint8_t mac[6]; /**< MAC address of the station connected to ESP32 soft-AP */
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uint8_t aid; /**< the aid that ESP32 soft-AP gives to the station connected to */
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} system_event_ap_staconnected_t;
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typedef struct {
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uint8_t mac[6]; /**< MAC address of the station disconnects to ESP32 soft-AP */
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uint8_t aid; /**< the aid that ESP32 soft-AP gave to the station disconnects to */
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} system_event_ap_stadisconnected_t;
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typedef struct {
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int rssi; /**< Received probe request signal strength */
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uint8_t mac[6]; /**< MAC address of the station which send probe request */
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} system_event_ap_probe_req_rx_t;
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typedef union {
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system_event_sta_connected_t connected; /**< ESP32 station connected to AP */
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system_event_sta_disconnected_t disconnected; /**< ESP32 station disconnected to AP */
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system_event_sta_scan_done_t scan_done; /**< ESP32 station scan (APs) done */
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system_event_sta_authmode_change_t auth_change; /**< the auth mode of AP ESP32 station connected to changed */
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system_event_sta_got_ip_t got_ip; /**< ESP32 station got IP */
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system_event_ap_staconnected_t sta_connected; /**< a station connected to ESP32 soft-AP */
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system_event_ap_stadisconnected_t sta_disconnected; /**< a station disconnected to ESP32 soft-AP */
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system_event_ap_probe_req_rx_t ap_probereqrecved; /**< ESP32 soft-AP receive probe request packet */
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} system_event_info_t;
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typedef struct {
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system_event_id_t event_id; /**< even ID */
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system_event_info_t event_info; /**< event information */
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} system_event_t;
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/**
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* @brief Application specified event callback function
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*
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* @param void *ctx : reserved for user
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* @param system_event_t *event : event type defined in this file
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*
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* @return ESP_OK : succeed
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* @return others : fail
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*/
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typedef esp_err_t (*system_event_cb_t)(void *ctx, system_event_t *event);
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/**
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* @brief Set application specified event callback function
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*
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* @attention 1. If cb is NULL, means application don't need to handle
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* If cb is not NULL, it will be call when an event is received, after the default event callback is completed
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*
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* @param system_event_cb_t cb : callback
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* @param void *ctx : reserved for user
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*
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* @return system_event_cb_t : old callback
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*/
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system_event_cb_t esp_event_set_cb(system_event_cb_t cb, void *ctx);
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/**
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* @brief Send a event to event task
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*
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* @attention 1. Other task/modules, such as the TCPIP module, can call this API to send an event to event task
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*
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* @param system_event_t * event : event
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*
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* @return ESP_OK : succeed
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* @return others : fail
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*/
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esp_err_t esp_event_send(system_event_t *event);
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/**
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* @brief Get the event handler
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*
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* @attention : currently this API returns event queue handler, by this event queue,
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* users can notice when WiFi has done something like scanning done, connected to AP or disconnected from AP.
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*
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* @param null
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*
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* @return void * : event queue pointer
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*/
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void *esp_event_get_handler(void);
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/**
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* @brief Init the event module
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* Create the event handler and task
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*
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* @param system_event_cb_t cb : application specified event callback, it can be modified by call esp_event_set_cb
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* @param void *ctx : reserved for user
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*
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* @return ESP_OK : succeed
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* @return others : fail
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*/
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esp_err_t esp_event_init(system_event_cb_t cb, void *ctx);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ESP_EVENT_H__ */
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