1 files changed, 44 insertions, 0 deletions
diff --git a/Marlin/src/gcode/sd/M21_M22.cpp b/Marlin/src/gcode/sd/M21_M22.cpp
new file mode 100644
index 0000000..f42784d
--- /dev/null
+++ b/Marlin/src/gcode/sd/M21_M22.cpp
@@ -0,0 +1,44 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 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/MarlinConfig.h"
+
+#if ENABLED(SDSUPPORT)
+
+#include "../gcode.h"
+#include "../../sd/cardreader.h"
+#include "../../lcd/marlinui.h"
+
+/**
+ * M21: Init SD Card
+ */
+void GcodeSuite::M21() { card.mount(); }
+
+/**
+ * M22: Release SD Card
+ */
+void GcodeSuite::M22() {
+  if (!IS_SD_PRINTING()) card.release();
+  IF_ENABLED(TFT_COLOR_UI, ui.refresh(LCDVIEW_CALL_REDRAW_NEXT));
+}
+
+#endif // SDSUPPORT