65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/event_groups.h"
|
|
#include "nvs_flash.h"
|
|
#include "esp_event_loop.h"
|
|
#include "esp_log.h"
|
|
#include "esp_wifi.h"
|
|
|
|
#include "wifi_functions.h"
|
|
|
|
|
|
// Event group for wifi connection
|
|
static EventGroupHandle_t wifi_event_group;
|
|
const int CONNECTED_BIT = BIT0;
|
|
|
|
// Wifi event handler
|
|
static esp_err_t event_handler(void *ctx, system_event_t *event)
|
|
{
|
|
switch(event->event_id) {
|
|
|
|
case SYSTEM_EVENT_STA_START:
|
|
esp_wifi_connect();
|
|
break;
|
|
|
|
case SYSTEM_EVENT_STA_GOT_IP:
|
|
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
|
|
break;
|
|
|
|
case SYSTEM_EVENT_STA_DISCONNECTED:
|
|
esp_wifi_connect();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
void wifi_initialise(void) {
|
|
|
|
// initialize NVS, required for wifi
|
|
ESP_ERROR_CHECK(nvs_flash_init());
|
|
|
|
// connect to the wifi network
|
|
wifi_event_group = xEventGroupCreate();
|
|
tcpip_adapter_init();
|
|
ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
|
|
wifi_init_config_t wifi_init_config = WIFI_INIT_CONFIG_DEFAULT();
|
|
ESP_ERROR_CHECK(esp_wifi_init(&wifi_init_config));
|
|
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
|
|
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
|
|
wifi_config_t wifi_config = {
|
|
.sta = {
|
|
.ssid = WIFI_SSID,
|
|
.password = WIFI_PASS,
|
|
},
|
|
};
|
|
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
|
|
ESP_ERROR_CHECK(esp_wifi_start());
|
|
}
|
|
|
|
void wifi_wait_connected()
|
|
{
|
|
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
|
|
} |