fix WLED_QEMU build

- fix for mis-placed #ifndef WLED_QEMU
- disable AP code when building for WLED_QEMU
- WLED_CONNECTED  for WLED_QEMU: do not check if wifi active/connected
- disable MDNS for WLED_QEMU
-minor cleanup

Author: softhack007

platformio.ini

@@ -1869,7 +1869,7 @@ build_flags = ${esp32_4MB_V4_M_base.build_flags}
   ; -D WLED_STATIC_IP_DEFAULT_2=0
   ; -D WLED_STATIC_IP_DEFAULT_3=2
   ; -D WLED_STATIC_IP_DEFAULT_4=15
-  -D WLED_DISABLE_WIFI                 ;; experimental - no wifi AP mode
+  -D MDNS_NAME=\"\"                    ;; disable MDNS
   -D WLED_DISABLE_INFRARED
   -D BTNPIN=-1 -D RLYPIN=1 -D IRPIN=-1 ;; disable all extra pins
   -D SR_DMTYPE=254 -D AUDIOPIN=-1      ;; set AR into "received only" mode

wled00/wled.cpp

@@ -959,6 +959,7 @@ void WLED::initAP(bool resetAP)
   if (apBehavior == AP_BEHAVIOR_BUTTON_ONLY && !resetAP)
     return;
 
+#if !defined(WLED_QEMU) // QEMU does not support wifi AP mode
   if (resetAP) {
     WLED_SET_AP_SSID();
     strcpy_P(apPass, PSTR(WLED_AP_PASS));
@@ -991,6 +992,7 @@ void WLED::initAP(bool resetAP)
     dnsServer.start(53, "*", WiFi.softAPIP());
   }
   apActive = true;
+#endif // WLED_QEMU
 }
 
 bool WLED::initEthernet()
@@ -1359,8 +1361,8 @@ void WLED::handleConnection()
   }
   #endif
 
-#ifndef WLED_QEMU
   byte stac = 0;
+#ifndef WLED_QEMU
   if (apActive) {
 #ifdef ESP8266
     stac = wifi_softap_get_station_num();

wled00/wled.h

@@ -350,10 +350,10 @@ WLED_GLOBAL char cmDNS[33] _INIT(MDNS_NAME);                       // mDNS addre
 WLED_GLOBAL char apSSID[33] _INIT("");                             // AP off by default (unless setup)
 WLED_GLOBAL byte apChannel _INIT(6);                               // 2.4GHz WiFi AP channel (1-13)
 WLED_GLOBAL byte apHide    _INIT(0);                               // hidden AP SSID
-#ifndef WLED_DISABLE_WIFI
-WLED_GLOBAL byte apBehavior _INIT(AP_BEHAVIOR_BOOT_NO_CONN);       // access point opens when no connection after boot by default
-#else
+#ifdef WLED_QEMU
 WLED_GLOBAL byte apBehavior _INIT(AP_BEHAVIOR_BUTTON_ONLY);        // access point opens when button0 pressed for at least 6 seconds
+#else
+WLED_GLOBAL byte apBehavior _INIT(AP_BEHAVIOR_BOOT_NO_CONN);       // access point opens when no connection after boot by default
 #endif
 WLED_GLOBAL IPAddress staticIP      _INIT_N(((  0,   0,  0,  0))); // static IP of ESP
 WLED_GLOBAL IPAddress staticGateway _INIT_N(((  0,   0,  0,  0))); // gateway (router) IP
@@ -895,7 +895,11 @@ WLED_GLOBAL volatile uint8_t jsonBufferLock _INIT(0);
 #endif
 
 #ifdef ARDUINO_ARCH_ESP32
+  #ifdef WLED_QEMU
+  #define WLED_CONNECTED (ETH.localIP()[0] != 0) // QEMU does not have wifi
+  #else
   #define WLED_CONNECTED (WiFi.status() == WL_CONNECTED || ETH.localIP()[0] != 0)
+  #endif
 #else
   #define WLED_CONNECTED (WiFi.status() == WL_CONNECTED)
 #endif