M154 Position Auto-Report (#18427)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/gcode/host/M115.cpp

@@ -82,6 +82,9 @@ void GcodeSuite::M115() {
     // Volumetric Extrusion (M200)
     cap_line(PSTR("VOLUMETRIC"), DISABLED(NO_VOLUMETRICS));
 
+    // AUTOREPORT_POS (M154)
+    cap_line(PSTR("AUTOREPORT_POS"), ENABLED(AUTO_REPORT_POSITION));
+
     // AUTOREPORT_TEMP (M155)
     cap_line(PSTR("AUTOREPORT_TEMP"), ENABLED(AUTO_REPORT_TEMPERATURES));
 

Marlin/src/gcode/host/M154.cpp

@@ -0,0 +1,40 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 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 <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../inc/MarlinConfigPre.h"
+
+#if ENABLED(AUTO_REPORT_POSITION)
+
+#include "../gcode.h"
+#include "../../module/motion.h"
+
+/**
+ * M154: Set position auto-report interval. M154 S<seconds>
+ */
+void GcodeSuite::M154() {
+
+  if (parser.seenval('S'))
+    position_auto_reporter.set_interval(parser.value_byte());
+
+}
+
+#endif // AUTO_REPORT_POSITION