Add gcode.cpp, motion.*, queue.* - Apply to some G-codes.

Marlin/src/gcode/config/M200.cpp

@@ -0,0 +1,49 @@
+/**
+ * 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 "../gcode.h"
+#include "../../Marlin.h"
+
+/**
+ * M200: Set filament diameter and set E axis units to cubic units
+ *
+ *    T<extruder> - Optional extruder number. Current extruder if omitted.
+ *    D<linear> - Diameter of the filament. Use "D0" to switch back to linear units on the E axis.
+ */
+void GcodeSuite::M200() {
+
+  if (get_target_extruder_from_command()) return;
+
+  if (parser.seen('D')) {
+    // setting any extruder filament size disables volumetric on the assumption that
+    // slicers either generate in extruder values as cubic mm or as as filament feeds
+    // for all extruders
+    volumetric_enabled = (parser.value_linear_units() != 0.0);
+    if (volumetric_enabled) {
+      filament_size[target_extruder] = parser.value_linear_units();
+      // make sure all extruders have some sane value for the filament size
+      for (uint8_t i = 0; i < COUNT(filament_size); i++)
+        if (! filament_size[i]) filament_size[i] = DEFAULT_NOMINAL_FILAMENT_DIA;
+    }
+  }
+  calculate_volumetric_multipliers();
+}