Move Controller Fan to feature

Marlin/src/Marlin.cpp

   #include "module/tool_change.h"
 #endif
 
+#if ENABLED(USE_CONTROLLER_FAN)
+  #include "feature/controllerfan.h"
+#endif
+
 bool Running = true;
 
 /**
   SYNC_PLAN_POSITION_KINEMATIC();
 }
 
-#if ENABLED(USE_CONTROLLER_FAN)
-
-  void controllerFan() {
-    static millis_t lastMotorOn = 0, // Last time a motor was turned on
-                    nextMotorCheck = 0; // Last time the state was checked
-    const millis_t ms = millis();
-    if (ELAPSED(ms, nextMotorCheck)) {
-      nextMotorCheck = ms + 2500UL; // Not a time critical function, so only check every 2.5s
-      if (X_ENABLE_READ == X_ENABLE_ON || Y_ENABLE_READ == Y_ENABLE_ON || Z_ENABLE_READ == Z_ENABLE_ON || thermalManager.soft_pwm_amount_bed > 0
-          || E0_ENABLE_READ == E_ENABLE_ON // If any of the drivers are enabled...
-          #if E_STEPPERS > 1
-            || E1_ENABLE_READ == E_ENABLE_ON
-            #if HAS_X2_ENABLE
-              || X2_ENABLE_READ == X_ENABLE_ON
-            #endif
-            #if E_STEPPERS > 2
-              || E2_ENABLE_READ == E_ENABLE_ON
-              #if E_STEPPERS > 3
-                || E3_ENABLE_READ == E_ENABLE_ON
-                #if E_STEPPERS > 4
-                  || E4_ENABLE_READ == E_ENABLE_ON
-                #endif // E_STEPPERS > 4
-              #endif // E_STEPPERS > 3
-            #endif // E_STEPPERS > 2
-          #endif // E_STEPPERS > 1
-      ) {
-        lastMotorOn = ms; //... set time to NOW so the fan will turn on
-      }
-
-      // Fan off if no steppers have been enabled for CONTROLLERFAN_SECS seconds
-      uint8_t speed = (!lastMotorOn || ELAPSED(ms, lastMotorOn + (CONTROLLERFAN_SECS) * 1000UL)) ? 0 : CONTROLLERFAN_SPEED;
-
-      // allows digital or PWM fan output to be used (see M42 handling)
-      WRITE(CONTROLLER_FAN_PIN, speed);
-      analogWrite(CONTROLLER_FAN_PIN, speed);
-    }
-  }
-
-#endif // USE_CONTROLLER_FAN
-
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
 
   void handle_filament_runout() {
   #endif
 
   #if ENABLED(USE_CONTROLLER_FAN)
-    controllerFan(); // Check if fan should be turned on to cool stepper drivers down
+    controllerfan_update(); // Check if fan should be turned on to cool stepper drivers down
   #endif
 
   #if ENABLED(EXTRUDER_RUNOUT_PREVENT)

Marlin/src/feature/controllerfan.cpp

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(USE_CONTROLLER_FAN)
+
+void controllerfan_update() {
+  static millis_t lastMotorOn = 0, // Last time a motor was turned on
+                  nextMotorCheck = 0; // Last time the state was checked
+  const millis_t ms = millis();
+  if (ELAPSED(ms, nextMotorCheck)) {
+    nextMotorCheck = ms + 2500UL; // Not a time critical function, so only check every 2.5s
+    if (X_ENABLE_READ == X_ENABLE_ON || Y_ENABLE_READ == Y_ENABLE_ON || Z_ENABLE_READ == Z_ENABLE_ON || thermalManager.soft_pwm_amount_bed > 0
+        || E0_ENABLE_READ == E_ENABLE_ON // If any of the drivers are enabled...
+        #if E_STEPPERS > 1
+          || E1_ENABLE_READ == E_ENABLE_ON
+          #if HAS_X2_ENABLE
+            || X2_ENABLE_READ == X_ENABLE_ON
+          #endif
+          #if E_STEPPERS > 2
+            || E2_ENABLE_READ == E_ENABLE_ON
+            #if E_STEPPERS > 3
+              || E3_ENABLE_READ == E_ENABLE_ON
+              #if E_STEPPERS > 4
+                || E4_ENABLE_READ == E_ENABLE_ON
+              #endif // E_STEPPERS > 4
+            #endif // E_STEPPERS > 3
+          #endif // E_STEPPERS > 2
+        #endif // E_STEPPERS > 1
+    ) {
+      lastMotorOn = ms; //... set time to NOW so the fan will turn on
+    }
+
+    // Fan off if no steppers have been enabled for CONTROLLERFAN_SECS seconds
+    uint8_t speed = (!lastMotorOn || ELAPSED(ms, lastMotorOn + (CONTROLLERFAN_SECS) * 1000UL)) ? 0 : CONTROLLERFAN_SPEED;
+
+    // allows digital or PWM fan output to be used (see M42 handling)
+    WRITE(CONTROLLER_FAN_PIN, speed);
+    analogWrite(CONTROLLER_FAN_PIN, speed);
+  }
+}
+
+#endif // USE_CONTROLLER_FAN

Marlin/src/feature/controllerfan.h

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef __CONTROLLERFAN_H__
+#define __CONTROLLERFAN_H__
+
+void controllerfan_update();
+
+#endif // __CONTROLLERFAN_H__