Make FWRetract class for 2.0.x parity

Marlin/fwretract.h

@@ -0,0 +1,70 @@
+/**
+ * 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/>.
+ *
+ */
+
+/**
+ * fwretract.h - Define firmware-based retraction interface
+ */
+
+#ifndef FWRETRACT_H
+#define FWRETRACT_H
+
+#include "MarlinConfig.h"
+
+class FWRetract {
+public:
+  static bool autoretract_enabled,                 // M209 S - Autoretract switch
+              retracted[EXTRUDERS];                // Which extruders are currently retracted
+  #if EXTRUDERS > 1
+    static bool retracted_swap[EXTRUDERS];         // Which extruders are swap-retracted
+  #endif
+  static float retract_length,                     // M207 S - G10 Retract length
+               retract_feedrate_mm_s,              // M207 F - G10 Retract feedrate
+               retract_zlift,                      // M207 Z - G10 Retract hop size
+               retract_recover_length,             // M208 S - G11 Recover length
+               retract_recover_feedrate_mm_s,      // M208 F - G11 Recover feedrate
+               swap_retract_length,                // M207 W - G10 Swap Retract length
+               swap_retract_recover_length,        // M208 W - G11 Swap Recover length
+               swap_retract_recover_feedrate_mm_s; // M208 R - G11 Swap Recover feedrate
+
+  FWRetract() { reset(); }
+
+  static void reset();
+
+  static void refresh_autoretract() {
+    for (uint8_t i = 0; i < EXTRUDERS; i++) retracted[i] = false;
+  }
+
+  static void enable_autoretract(const bool enable) {
+    autoretract_enabled = enable;
+    refresh_autoretract();
+  }
+
+  static void retract(const bool retracting
+    #if EXTRUDERS > 1
+      , bool swapping = false
+    #endif
+  );
+};
+
+extern FWRetract fwretract;
+
+#endif // FWRETRACT_H