93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_spi_flash.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 "lwip/err.h"
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#include "lwip/sys.h"
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static const char *TAG = "APP_WIFI";
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#define WIFI_SSID CONFIG_ESP_WIFI_SSID
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#define WIFI_PSK CONFIG_ESP_WIFI_PASSWORD
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#define WIFI_RETR CONFIG_ESP_MAXIMUM_RETRY
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#define WIFI_CONNECTED_BIT BIT0
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#define WIFI_FAIL_BIT BIT1
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static uint8_t s_retry_num = 0;
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EventGroupHandle_t g_wifi_event_group;
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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 && event_id == WIFI_EVENT_STA_START) {
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esp_wifi_connect();
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}
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else if(event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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if(s_retry_num < WIFI_RETR) {
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esp_wifi_connect();
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s_retry_num ++;
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ESP_LOGI(TAG, "connection lost, reconnecting...");
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} else {
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xEventGroupSetBits(g_wifi_event_group, WIFI_FAIL_BIT);
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ESP_LOGE(TAG, "connection failed, no more retries scheduled.");
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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) {
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ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
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ESP_LOGI(TAG, "got IPv4 address: "IPSTR, IP2STR(&event->ip_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(g_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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else if(event_base == IP_EVENT && event_id == IP_EVENT_GOT_IP6) {
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ip_event_got_ip6_t *event = (ip_event_got_ip6_t *)event_data;
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ESP_LOGI(TAG, "got IPv6 address: "IPV6STR, IPV62STR(event->ip6_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(g_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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void app_wifi_init(void) {
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g_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_create_default_wifi_sta();
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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_event_handler_instance_t instance_any_id;
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esp_event_handler_instance_t instance_got_ip;
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &_wifi_event_handler, NULL, &instance_any_id));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &_wifi_event_handler, NULL, &instance_got_ip));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_GOT_IP6, &_wifi_event_handler, NULL, &instance_got_ip));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = WIFI_SSID,
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.password = WIFI_PSK,
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.threshold.authmode = WIFI_AUTH_WPA2_PSK,
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.pmf_cfg = {
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.capable = true,
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.required = false
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},
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},
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};
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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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} |