96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
#include "freertos/FreeRTOS.h"
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#include "freertos/event_groups.h"
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#include "esp_task_wdt.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "main.hpp"
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#include "wifi-credentials.h"
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#define WIFI_MAX_RETRIES 8
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static const char* TAG = "WIFI";
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EventGroupHandle_t wifi_event_group;
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const int WIFI_CONNECTED_BIT = BIT0;
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static void wifi_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) {
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if (event_base == WIFI_EVENT) {
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switch(event_id) {
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case WIFI_EVENT_STA_START:
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esp_wifi_connect();
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break;
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case WIFI_EVENT_STA_DISCONNECTED:
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esp_wifi_connect();
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xEventGroupClearBits(wifi_event_group, WIFI_CONNECTED_BIT);
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break;
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}
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}
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else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) xEventGroupSetBits(wifi_event_group, WIFI_CONNECTED_BIT);
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}
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void wifi_init_sta(void) {
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esp_err_t nvs_err = nvs_flash_init();
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if (nvs_err == ESP_ERR_NVS_NO_FREE_PAGES || nvs_err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ESP_ERROR_CHECK(nvs_flash_init());
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}
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wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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esp_netif_create_default_wifi_sta();
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL, NULL));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL, NULL));
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wifi_config_t wifi_config{};
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strncpy((char*)wifi_config.sta.ssid, SSID, sizeof(wifi_config.sta.ssid));
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strncpy((char*)wifi_config.sta.password, PASSWORD, sizeof(wifi_config.sta.password));
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wifi_config.sta.threshold.authmode = AUTH_MODE;
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wifi_config.sta.pmf_cfg.capable = true;
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wifi_config.sta.pmf_cfg.required = false;
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
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ESP_ERROR_CHECK(esp_wifi_start());
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}
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void wifiTask(void *pvParameters) {
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ESP_LOGI(TAG, "WiFi task started");
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wifi_init_sta();
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ESP_ERROR_CHECK(esp_task_wdt_add(NULL));
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do {
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EventBits_t bits = xEventGroupWaitBits(wifi_event_group, WIFI_CONNECTED_BIT, pdFALSE, pdTRUE, portMAX_DELAY);
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ESP_LOGI(TAG, "Wi-Fi connected, ready for network");
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}
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while (true) {
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for(uint8_t retriesCounter = 0; retriesCounter < WIFI_MAX_RETRIES; retriesCounter++) {
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EventBits_t bits = xEventGroupWaitBits(wifi_event_group, WIFI_CONNECTED_BIT, pdFALSE, pdTRUE, pdMS_TO_TICKS(1000));
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if (bits & WIFI_CONNECTED_BIT) break;
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ESP_LOGW(TAG, "Wi-Fi disconnected...");
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vTaskDelay(pdMS_TO_TICKS(250));
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}
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if (!(xEventGroupGetBits(wifi_event_group) & WIFI_CONNECTED_BIT)) {
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ESP_LOGE(TAG, "Critical error: Wi-Fi connection lost");
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criticalErrorFlag = true;
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}
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esp_task_wdt_reset();
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ESP_LOGI(TAG, "Wi-Fi reset");
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vTaskDelay(pdMS_TO_TICKS(4000));
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}
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}
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