Move M42 to cpp

Marlin/src/gcode/control/M42.cpp

@@ -0,0 +1,63 @@
+/**
+ * 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" // for pin_is_protected
+#include "../../inc/MarlinConfig.h"
+
+/**
+ * M42: Change pin status via GCode
+ *
+ *  P<pin>  Pin number (LED if omitted)
+ *  S<byte> Pin status from 0 - 255
+ */
+void GcodeSuite::M42() {
+  if (!parser.seenval('S')) return;
+  const byte pin_status = parser.value_byte();
+
+  const int pin_number = parser.intval('P', LED_PIN);
+  if (pin_number < 0) return;
+
+  if (pin_is_protected(pin_number)) {
+    SERIAL_ERROR_START();
+    SERIAL_ERRORLNPGM(MSG_ERR_PROTECTED_PIN);
+    return;
+  }
+
+  pinMode(pin_number, OUTPUT);
+  digitalWrite(pin_number, pin_status);
+  analogWrite(pin_number, pin_status);
+
+  #if FAN_COUNT > 0
+    switch (pin_number) {
+      #if HAS_FAN0
+        case FAN_PIN: fanSpeeds[0] = pin_status; break;
+      #endif
+      #if HAS_FAN1
+        case FAN1_PIN: fanSpeeds[1] = pin_status; break;
+      #endif
+      #if HAS_FAN2
+        case FAN2_PIN: fanSpeeds[2] = pin_status; break;
+      #endif
+    }
+  #endif
+}