82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
#include "wifi.h"
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#include "sdkconfig.h"
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#include <esp_event.h>
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#include <esp_log.h>
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#include <esp_netif.h>
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#include <esp_wifi.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/event_groups.h>
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#include <freertos/task.h>
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#include <string.h>
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static const char *TAG = "wifi";
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static EventGroupHandle_t s_wifi_event_group;
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static const int WIFI_CONNECTED_BIT = BIT0;
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static volatile bool s_connected = false;
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/* -------------------------------------------------------------------------
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* Event handler
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* ---------------------------------------------------------------------- */
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static void wifi_event_handler(void *arg, esp_event_base_t event_base,
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int32_t event_id, void *event_data)
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{
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if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
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esp_wifi_connect();
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ESP_LOGI(TAG, "WiFi connecting...");
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} else if (event_base == WIFI_EVENT &&
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event_id == WIFI_EVENT_STA_DISCONNECTED) {
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s_connected = false;
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xEventGroupClearBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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esp_wifi_connect();
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ESP_LOGI(TAG, "WiFi disconnected, reconnecting...");
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} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
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ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
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ESP_LOGI(TAG, "WiFi connected, IP: " IPSTR, IP2STR(&event->ip_info.ip));
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s_connected = true;
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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/* -------------------------------------------------------------------------
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* Public API
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* ---------------------------------------------------------------------- */
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void wifi_init(void)
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{
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s_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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esp_netif_t *sta_netif = esp_netif_create_default_wifi_sta();
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configASSERT(sta_netif);
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ESP_ERROR_CHECK(esp_netif_set_hostname(sta_netif, "keypitecc"));
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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_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID,
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&wifi_event_handler, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP,
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&wifi_event_handler, NULL));
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wifi_config_t wifi_config = {};
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strncpy((char *)wifi_config.sta.ssid, CONFIG_WIFI_SSID,
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sizeof(wifi_config.sta.ssid) - 1);
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strncpy((char *)wifi_config.sta.password, CONFIG_WIFI_PASSWORD,
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sizeof(wifi_config.sta.password) - 1);
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wifi_config.sta.threshold.authmode = WIFI_AUTH_WPA2_PSK;
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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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ESP_LOGI(TAG, "Connecting to SSID: %s", CONFIG_WIFI_SSID);
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}
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bool wifi_is_connected(void)
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{
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return s_connected;
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}
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