runnable on WT32-SC01-PLUS
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121
firmware/main/wps.c
Normal file
121
firmware/main/wps.c
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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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static const char *TAG = "WPS_EXAMPLE";
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// Funktion, um WPS zu starten (z.B. durch Button-Interrupt aufgerufen)
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void start_wps_process()
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{
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ESP_LOGI(TAG, "Starting WPS...");
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// esp_wifi_wps_config_t wps_config = WPS_CONFIG_INIT_DEFAULT(WPS_TYPE_PBC);
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// ESP_ERROR_CHECK(esp_wifi_wps_enable(&wps_config));
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// ESP_ERROR_CHECK(esp_wifi_wps_start(0)); // Start WPS indefinitely (handle timeout via event)
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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)
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{
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switch (event_id)
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{
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case WIFI_EVENT_STA_START:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_START: Wi-Fi station started.");
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// Option 1: Start WPS direkt hier
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// start_wps_process();
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// Option 2: Warten auf externen Trigger (z.B. Button), siehe start_wps_process()
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// Optional: Versuchen, sich normal zu verbinden, falls Zugangsdaten gespeichert sind
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// esp_wifi_connect();
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break;
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case WIFI_EVENT_STA_CONNECTED:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_CONNECTED");
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// Falls verbunden (z.B. aus Flash), WPS deaktivieren, falls es noch lief
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// esp_wifi_wps_disable();
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break;
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case WIFI_EVENT_STA_DISCONNECTED:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_DISCONNECTED");
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// Eventuell normalen Verbindungsversuch starten oder auf WPS-Trigger warten
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// esp_wifi_connect(); // Oder: Warte auf Button für WPS
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break;
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case WIFI_EVENT_STA_WPS_ER_SUCCESS:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_SUCCESS");
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// WPS erfolgreich, Zugangsdaten wurden empfangen.
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// Der Wi-Fi Stack versucht nun automatisch, sich zu verbinden.
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// WPS deaktivieren.
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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// Optional: Zugangsdaten auslesen und speichern, falls nötig (normalerweise nicht erforderlich, da der Stack sie intern nutzt)
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break;
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case WIFI_EVENT_STA_WPS_ER_FAILED:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_FAILED");
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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// Hier Fehlerbehandlung: Info an User, evtl. erneuten Start ermöglichen
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break;
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case WIFI_EVENT_STA_WPS_ER_TIMEOUT:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_TIMEOUT");
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ESP_ERROR_CHECK(esp_wifi_wps_disable());
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// Hier Fehlerbehandlung: Info an User, evtl. erneuten Start ermöglichen
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break;
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case WIFI_EVENT_STA_WPS_ER_PIN:
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ESP_LOGI(TAG, "WIFI_EVENT_STA_WPS_ER_PIN");
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// Relevant für PIN-Modus
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// wifi_event_sta_wps_er_pin_t* event = (wifi_event_sta_wps_er_pin_t*) event_data;
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// ESP_LOGI(TAG, "WPS PIN: %.*s", event->pin_code_len, event->pin_code); // Beispiel: ESP32 generiert PIN
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break;
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default:
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break;
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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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{
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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 address: " IPSTR, IP2STR(&event->ip_info.ip));
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// Verbindung erfolgreich hergestellt
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}
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}
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void wifi_init_sta_wps(void)
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{
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// 1. NVS initialisieren
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND)
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{
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK(ret);
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// 2. TCP/IP Stack initialisieren
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ESP_ERROR_CHECK(esp_netif_init());
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// 3. Event Loop erstellen
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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// 4. Default Wi-Fi Station Netif erstellen
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esp_netif_create_default_wifi_sta();
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// 5. Wi-Fi Treiber initialisieren
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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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// 6. Event Handler registrieren
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL));
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// 7. Wi-Fi Modus auf Station setzen
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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// 8. Wi-Fi starten (löst WIFI_EVENT_STA_START aus)
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ESP_ERROR_CHECK(esp_wifi_start());
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ESP_LOGI(TAG, "Wi-Fi Initialisierung abgeschlossen.");
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ESP_LOGI(TAG, "Bereit für WPS Trigger (z.B. Button-Druck oder automatischen Start in STA_START).");
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}
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