Fix SmartConfig not saving the correct config

Fixes: espressif/arduino-esp32#275

Author: dash0820

Diff for: libraries/WiFi/src/WiFiSTA.cpp

@@ -41,6 +41,7 @@ extern "C" {
 #include "lwip/err.h"
 #include "lwip/dns.h"
 #include <esp_smartconfig.h>
+#include <tcpip_adapter.h>
 }
 
 // -----------------------------------------------------------------------------------------------------------------------
@@ -524,6 +525,7 @@ bool WiFiSTAClass::beginSmartConfig() {
         return false;
     }
 
+    esp_wifi_disconnect();
 
     esp_err_t err;
     err = esp_smartconfig_start(reinterpret_cast<sc_callback_t>(&WiFiSTAClass::_smartConfigCallback), 1);
@@ -556,17 +558,39 @@ bool WiFiSTAClass::smartConfigDone() {
     return _smartConfigDone;
 }
 
+#if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_DEBUG
+const char * sc_status_strings[] = {
+    "WAIT",
+    "FIND_CHANNEL",
+    "GETTING_SSID_PSWD",
+    "LINK",
+    "LINK_OVER"
+};
+
+const char * sc_type_strings[] = {
+    "ESPTOUCH",
+    "AIRKISS",
+    "ESPTOUCH_AIRKISS"
+};
+#endif
+
 void WiFiSTAClass::_smartConfigCallback(uint32_t st, void* result) {
     smartconfig_status_t status = (smartconfig_status_t) st;
-    if (status == SC_STATUS_LINK) {
+    log_d("Status: %s", sc_status_strings[st % 5]);
+    if (status == SC_STATUS_GETTING_SSID_PSWD) {
+        smartconfig_type_t * type = (smartconfig_type_t *)result;
+        log_d("Type: %s", sc_type_strings[*type % 3]);
+    } else if (status == SC_STATUS_LINK) {
         wifi_sta_config_t *sta_conf = reinterpret_cast<wifi_sta_config_t *>(result);
-
-        esp_wifi_set_config(WIFI_IF_AP, (wifi_config_t *)sta_conf);
-        esp_wifi_disconnect();
+        log_d("SSID: %s", (char *)(sta_conf->ssid));
+        esp_wifi_set_config(WIFI_IF_STA, (wifi_config_t *)sta_conf);
         esp_wifi_connect();
-
         _smartConfigDone = true;
     } else if (status == SC_STATUS_LINK_OVER) {
+        if(result){
+            ip4_addr_t * ip = (ip4_addr_t *)result;
+            log_d("Sender IP: " IPSTR, IP2STR(ip));
+        }
         WiFi.stopSmartConfig();
     }
 }