108 lines
3.9 KiB
C
108 lines
3.9 KiB
C
#include <string.h>
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#include "esp_timer.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "freertos/event_groups.h"
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#include "esp_log.h"
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#include "esp_netif.h"
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#include <lwip/sockets.h>
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#include "wifi.h"
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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 = "smart-oil-heater-control-system-wifi";
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static EventGroupHandle_t s_wifi_event_group;
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static void 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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void initWifi(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 *my_sta = esp_netif_create_default_wifi_sta();
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esp_netif_dhcpc_stop(my_sta);
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esp_netif_ip_info_t ip_info;
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ip_info.ip.addr = ipaddr_addr(CONFIG_STATIC_IP_ADDR);
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ip_info.gw.addr = ipaddr_addr(CONFIG_STATIC_GATEWAY_IP_ADDR);
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ip_info.netmask.addr = ipaddr_addr(CONFIG_STATIC_IP_NETMASK);
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esp_netif_set_ip_info(my_sta, &ip_info);
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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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&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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&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 = CONFIG_SSID,
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.password = CONFIG_WIFI_PASSWORD,
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.threshold.authmode = WIFI_AUTH_WPA2_PSK,
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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_ERROR_CHECK(esp_wifi_set_max_tx_power(78)); // Set max power to 19.5 dBm (78 in units of 0.25 dBm)
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ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_MIN_MODEM)); // Use power-saving mode
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ESP_LOGI(TAG, "wifi_init_sta finished.");
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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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{
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ESP_LOGI(TAG, "Connected to ap SSID:%s", CONFIG_SSID);
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}
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else if (bits & WIFI_FAIL_BIT)
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{
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ESP_LOGI(TAG, "Failed to connect to SSID:%s", CONFIG_SSID);
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}
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else
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{
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ESP_LOGE(TAG, "Unexpected event");
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}
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vEventGroupDelete(s_wifi_event_group);
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}
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static void 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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{
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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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{
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esp_wifi_connect();
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ESP_LOGI(TAG, "Retry to connect to the AP");
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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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{
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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 ip:" IPSTR, IP2STR(&event->ip_info.ip));
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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} |