91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
#include <freertos/FreeRTOS.h>
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#include "freertos/event_groups.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_netif.h"
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#include "esp_log.h"
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#include "ygg_wifi.h"
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#define WIFI_SSID "TP-Link_8D0E"
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#define WIFI_PASS "49824643"
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#define WIFI_CONNECTED_BIT BIT0
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#define WIFI_FAIL_BIT BIT1
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static const char *TAG = "YGG_WIFI";
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static EventGroupHandle_t s_wifi_event_group;
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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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static int s_retry_num = 0;
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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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} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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if (s_retry_num < 5) {
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esp_wifi_connect();
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s_retry_num++;
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ESP_LOGI(TAG, "Resuming connection to AP...");
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} else {
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xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
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}
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ESP_LOGI(TAG, "Connection to AP failed");
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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, "IP acquired:" IPSTR, IP2STR(&event->ip_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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void wifi_init_sta(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_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,
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ESP_EVENT_ANY_ID,
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&wifi_event_handler,
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NULL,
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&instance_any_id));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
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IP_EVENT_STA_GOT_IP,
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&wifi_event_handler,
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NULL,
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&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_PASS,
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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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ESP_LOGI(TAG, "Initialization wifi_init_sta done.");
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EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
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WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
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pdFALSE,
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pdFALSE,
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portMAX_DELAY);
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if (bits & WIFI_CONNECTED_BIT) {
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ESP_LOGI(TAG, "Connected to AP SSID:%s", WIFI_SSID);
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} else if (bits & WIFI_FAIL_BIT) {
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ESP_LOGI(TAG, "Connection error SSID:%s", WIFI_SSID);
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} else {
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ESP_LOGE(TAG, "UNEXPECTED EVENT");
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}
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}
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