Move M380_M381 to cpp, solenoid feature

Marlin/src/Marlin.cpp

   return false;
 }
 
-#if ENABLED(EXT_SOLENOID)
-  #include "gcode/control/M380_M381.h"
-#endif
-
 #include "gcode/control/M400.h"
 
 #if HAS_BED_PROBE

Marlin/src/gcode/control/M380_M381.h → Marlin/src/feature/solenoid.cpp

  *
  */
 
+#include "../inc/MarlinConfig.h"
+
 #if ENABLED(EXT_SOLENOID)
 
-void enable_solenoid(const uint8_t num) {
+#include "solenoid.h"
+
+#include "../module/motion.h" // for active_extruder
+
+inline void enable_solenoid(const uint8_t num) {
   switch (num) {
     case 0:
       OUT_WRITE(SOL0_PIN, HIGH);
   #endif
 }
 
-/**
- * M380: Enable solenoid on the active extruder
- */
-void gcode_M380() {
-
-  enable_solenoid_on_active_extruder();
-
-}
-
-/**
- * M381: Disable all solenoids
- */
-void gcode_M381() {
-
-  disable_all_solenoids();
-
-}
-
 #endif // EXT_SOLENOID

Marlin/src/feature/solenoid.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 __SOLENOID_H__
+#define __SOLENOID_H__
+
+void enable_solenoid_on_active_extruder();
+void disable_all_solenoids();
+
+#endif // __SOLENOID_H__

Marlin/src/gcode/control/M380_M381.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(EXT_SOLENOID)
+
+#include "../gcode.h"
+#include "../../feature/solenoid.h"
+
+/**
+ * M380: Enable solenoid on the active extruder
+ */
+void GcodeSuite::M380() { enable_solenoid_on_active_extruder(); }
+
+/**
+ * M381: Disable all solenoids
+ */
+void GcodeSuite::M381() { disable_all_solenoids(); }
+
+#endif // EXT_SOLENOID

Marlin/src/gcode/gcode.cpp

 extern void gcode_M350();
 extern void gcode_M351();
 extern void gcode_M355();
-extern void gcode_M380();
-extern void gcode_M381();
 extern void gcode_M400();
 extern void gcode_M401();
 extern void gcode_M402();
       #endif
 
       #if ENABLED(EXT_SOLENOID)
-        case 380: // M380: Activate solenoid on active extruder
-          gcode_M380();
-          break;
-        case 381: // M381: Disable all solenoids
-          gcode_M381();
-          break;
+        case 380: M380(); break;  // M380: Activate solenoid on active extruder
+        case 381: M381(); break;  // M381: Disable all solenoids
       #endif
 
       case 400: // M400: Finish all moves

Marlin/src/module/tool_change.cpp

   #include "../gcode/gcode.h" // for dwell()
 #endif
 
+#if ENABLED(EXT_SOLENOID) && !ENABLED(PARKING_EXTRUDER)
+  #include "../feature/solenoid.h"
+#endif
+
 #if ENABLED(SWITCHING_EXTRUDER)
 
   #if EXTRUDERS > 3