From e809a460cce4ec58a87dd8a2b1a812136361c238 Mon Sep 17 00:00:00 2001
From: Harald Barth <haba@kth.se>
Date: Sat, 14 Nov 2020 13:17:47 +0100
Subject: [PATCH] DONT_TOUCH_WIFI_CONFIG feature

---
 WifiInterface.cpp | 6 +++++-
 WifiInterface.h   | 1 +
 config.example.h  | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/WifiInterface.cpp b/WifiInterface.cpp
index 422af7a..459bd09 100644
--- a/WifiInterface.cpp
+++ b/WifiInterface.cpp
@@ -18,7 +18,7 @@
     along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-#include "WifiInterface.h"        /* config.h and defines.h included here */
+#include "WifiInterface.h"        /* config.h included there */
 #include <avr/pgmspace.h>
 #include "DIAG.h"
 #include "StringFormatter.h"
@@ -157,6 +157,9 @@ wifiSerialState WifiInterface::setup2(const __FlashStringHelper* SSid, const __F
   StringFormatter::send(wifiStream, F("AT+GMR\r\n")); 
   checkForOK(2000, OK_SEARCH, true, false);      // Makes this visible on the console
 
+#ifdef DONT_TOUCH_WIFI_CONF
+  DIAG(F("\nDONT_TOUCH_WIFI_CONF was set: Using existing config\n"));
+#else
   StringFormatter::send(wifiStream, F("AT+CWMODE=1\r\n")); // configure as "station" = WiFi client
   checkForOK(1000, OK_SEARCH, true);                       // Not always OK, sometimes "no change"
 
@@ -256,6 +259,7 @@ wifiSerialState WifiInterface::setup2(const __FlashStringHelper* SSid, const __F
 
   StringFormatter::send(wifiStream, F("AT+CIPSERVER=1,%d\r\n"), port); // turn on server on port
   if (!checkForOK(10000, OK_SEARCH, true)) return WIFI_DISCONNECTED;
+#endif //DONT_TOUCH_WIFI_CONF
  
   StringFormatter::send(wifiStream, F("AT+CIFSR\r\n")); // Display  ip addresses to the DIAG 
   if (!checkForOK(10000, OK_SEARCH, true, false)) return WIFI_DISCONNECTED;
diff --git a/WifiInterface.h b/WifiInterface.h
index 6411f6c..390a85f 100644
--- a/WifiInterface.h
+++ b/WifiInterface.h
@@ -19,6 +19,7 @@
  */
 #ifndef WifiInterface_h
 #define WifiInterface_h
+#include "config.h"
 #include "DCCEXParser.h"
 #include <Arduino.h>
 #include <avr/pgmspace.h>
diff --git a/config.example.h b/config.example.h
index d0be16a..3ceb675 100644
--- a/config.example.h
+++ b/config.example.h
@@ -44,6 +44,12 @@ The configuration file for DCC++ EX Command Station
 //
 // DEFINE WiFi Parameters (only in effect if WIFI is on)
 //
+//#define DONT_TOUCH_WIFI_CONF
+//
+// if DONT_TOUCH_WIFI_CONF is set, all WIFI config will be done with
+// the <+> commands and this sketch will not change anything over
+// AT commands and the WIFI_* defines below do not have any effect.
+//
 #define WIFI_SSID "Your network name"
 #define WIFI_PASSWORD "Your network passwd"
 #define WIFI_HOSTNAME "dccex"