refactor

common/esp32/ygg_http_server.c

@@ -0,0 +1,19 @@
+#include "esp_http_server.h"
+#include "ygg_http_server.h"
+#include "esp_log.h"
+
+static const char *TAG = "YGG_HTTP_SERVER";
+
+httpd_handle_t ygg_start_webserver(void)
+{
+    httpd_handle_t server = NULL;
+    httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+
+    ESP_LOGI(TAG, "Starting http server on port: %d", config.server_port);
+    if (httpd_start(&server, &config) == ESP_OK) {
+        return server;
+    }
+
+    ESP_LOGE(TAG, "Error starting server!");
+    return NULL;
+}

common/esp32/ygg_http_server.h

@@ -0,0 +1,6 @@
+#ifndef YGG_HTTP_SERV
+#define YGG_HTTP_SERV
+
+httpd_handle_t ygg_start_webserver(void);
+
+#endif

common/esp32/ygg_wifi.c

@@ -0,0 +1,90 @@
+#include <freertos/FreeRTOS.h>
+#include "freertos/event_groups.h"
+#include "esp_wifi.h"
+#include "esp_event.h"
+#include "esp_netif.h"
+#include "esp_log.h"
+#include "ygg_wifi.h"
+
+#define WIFI_SSID  "TP-Link_8D0E"
+#define WIFI_PASS  "49824643"
+
+#define WIFI_CONNECTED_BIT BIT0
+#define WIFI_FAIL_BIT      BIT1
+
+static const char *TAG = "YGG_WIFI";
+static EventGroupHandle_t s_wifi_event_group;
+
+void wifi_event_handler(void* arg, esp_event_base_t event_base,
+                            int32_t event_id, void* event_data)
+{
+    static int s_retry_num = 0;
+    if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
+        esp_wifi_connect();
+    } else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
+        if (s_retry_num < 5) {
+            esp_wifi_connect();
+            s_retry_num++;
+            ESP_LOGI(TAG, "Resuming connection to AP...");
+        } else {
+            xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
+        }
+        ESP_LOGI(TAG, "Connection to AP failed");
+    } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
+        ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
+        ESP_LOGI(TAG, "IP acquired:" IPSTR, IP2STR(&event->ip_info.ip));
+        s_retry_num = 0;
+        xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
+    }
+}
+
+void wifi_init_sta(void)
+{
+    s_wifi_event_group = xEventGroupCreate();
+
+    ESP_ERROR_CHECK(esp_netif_init());
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+    esp_netif_create_default_wifi_sta();
+
+    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+    ESP_ERROR_CHECK(esp_wifi_init(&cfg));
+
+    esp_event_handler_instance_t instance_any_id;
+    esp_event_handler_instance_t instance_got_ip;
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
+                                                        ESP_EVENT_ANY_ID,
+                                                        &wifi_event_handler,
+                                                        NULL,
+                                                        &instance_any_id));
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
+                                                        IP_EVENT_STA_GOT_IP,
+                                                        &wifi_event_handler,
+                                                        NULL,
+                                                        &instance_got_ip));
+
+    wifi_config_t wifi_config = {
+        .sta = {
+            .ssid = WIFI_SSID,
+            .password = WIFI_PASS,
+        },
+    };
+    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
+    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
+    ESP_ERROR_CHECK(esp_wifi_start());
+
+    ESP_LOGI(TAG, "Initialization wifi_init_sta done.");
+
+    EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
+            WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
+            pdFALSE,
+            pdFALSE,
+            portMAX_DELAY);
+
+    if (bits & WIFI_CONNECTED_BIT) {
+        ESP_LOGI(TAG, "Connected to AP SSID:%s", WIFI_SSID);
+    } else if (bits & WIFI_FAIL_BIT) {
+        ESP_LOGI(TAG, "Connection error SSID:%s", WIFI_SSID);
+    } else {
+        ESP_LOGE(TAG, "UNEXPECTED EVENT");
+    }
+}

common/esp32/ygg_wifi.h

@@ -0,0 +1,11 @@
+#ifndef YGG_WIFI
+#define YGG_WIFI
+
+#include "freertos/event_groups.h"
+#include "esp_event.h"
+
+void wifi_event_handler(void* arg, esp_event_base_t event_base,
+                        int32_t event_id, void* event_data);
+void wifi_init_sta(void);
+
+#endif