Insert invert rotary switch

MarlinKimbra/Configuration.h

@@ -531,6 +531,8 @@
 #endif
 #endif
 
+// option for invert rotary switch
+//#define INVERT_ROTARY_SWITCH
 
 // Languages
 // 1  English

MarlinKimbra/Configuration_Cartesian.h

@@ -41,7 +41,7 @@ const bool E_MIN_ENDSTOP_INVERTING = false; // set to true to invert the logic o
 const bool X_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 const bool Y_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
 const bool Z_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
-#define DISABLE_MAX_ENDSTOPS
+//#define DISABLE_MAX_ENDSTOPS
 //#define DISABLE_MIN_ENDSTOPS
 
 // For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1

MarlinKimbra/ultralcd.cpp

@@ -1597,8 +1597,13 @@ void lcd_buttons_update()
 {
 #ifdef NEWPANEL
     uint8_t newbutton=0;
+#ifdef INVERT_ROTARY_SWITCH
+    if(READ(BTN_EN1)==0)  newbutton|=EN_B;
+    if(READ(BTN_EN2)==0)  newbutton|=EN_A;
+#else
     if(READ(BTN_EN1)==0)  newbutton|=EN_A;
     if(READ(BTN_EN2)==0)  newbutton|=EN_B;
+#endif
   #if BTN_ENC > 0
     if((blocking_enc<millis()) && (READ(BTN_ENC)==0))
         newbutton |= EN_C;