77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
#include "esp_event.h"
|
|
#include "esp_log.h"
|
|
#include "esp_wifi.h"
|
|
#include "freertos/event_groups.h"
|
|
#include "freertos/task.h"
|
|
#include "secrets.h"
|
|
|
|
// `TAG` is common naming convention for logs in ESP-IDF
|
|
static const char *TAG = "wifi"; // Logs are coming from this wifi module. TAG =
|
|
// common naming convention for logs in ESP-IDF
|
|
static EventGroupHandle_t s_wifi_event_group;
|
|
static int s_retry_num = 0;
|
|
|
|
#define WIFI_CONNECTED_BIT BIT0
|
|
#define WIFI_FAIL_BIT BIT1
|
|
#define MAX_RETRY 5
|
|
|
|
static void wifi_event_handler(void *arg, esp_event_base_t event_base,
|
|
int32_t event_id, void *event_data) {
|
|
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
|
|
esp_wifi_connect();
|
|
} else if (event_base == WIFI_EVENT &&
|
|
event_id == WIFI_EVENT_STA_DISCONNECTED) {
|
|
if (s_retry_num < MAX_RETRY) {
|
|
esp_wifi_connect();
|
|
s_retry_num++;
|
|
ESP_LOGI(TAG, "Retrying connection...");
|
|
} else {
|
|
xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
|
|
}
|
|
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
|
|
ESP_LOGI(TAG, "Connected! Got IP");
|
|
s_retry_num = 0;
|
|
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
|
|
}
|
|
}
|
|
|
|
void wifi_connect(void) {
|
|
s_wifi_event_group = xEventGroupCreate();
|
|
ESP_ERROR_CHECK(esp_netif_init());
|
|
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
|
esp_netif_create_default_wifi_sta();
|
|
|
|
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
|
|
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
|
|
|
|
esp_event_handler_instance_t instance_any_id;
|
|
esp_event_handler_instance_t instance_got_ip;
|
|
ESP_ERROR_CHECK(esp_event_handler_instance_register(
|
|
WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL,
|
|
&instance_any_id));
|
|
ESP_ERROR_CHECK(esp_event_handler_instance_register(
|
|
IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL,
|
|
&instance_got_ip));
|
|
|
|
wifi_config_t wifi_config = {
|
|
.sta =
|
|
{
|
|
.ssid = SECRETS_WIFI_SSID,
|
|
.password = SECRETS_WIFI_PASS,
|
|
},
|
|
};
|
|
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
|
|
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
|
|
ESP_ERROR_CHECK(esp_wifi_start());
|
|
|
|
// Wait for connection
|
|
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
|
|
WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
|
|
pdFALSE, pdFALSE, portMAX_DELAY);
|
|
|
|
if (bits & WIFI_CONNECTED_BIT) {
|
|
ESP_LOGI(TAG, "WiFi connected successfully");
|
|
} else {
|
|
ESP_LOGE(TAG, "WiFi connection failed");
|
|
}
|
|
}
|