1 files changed, 72 insertions, 0 deletions
diff --git a/Marlin/src/feature/controllerfan.h b/Marlin/src/feature/controllerfan.h
new file mode 100644
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+++ b/Marlin/src/feature/controllerfan.h
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+/**
+ * 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/>.
+ *
+ */
+#pragma once
+
+#include "../inc/MarlinConfigPre.h"
+
+typedef struct {
+  uint8_t   active_speed,    // 0-255 (fullspeed); Speed with enabled stepper motors
+            idle_speed;      // 0-255 (fullspeed); Speed after idle period with all motors are disabled
+  uint16_t  duration;        // Duration in seconds for the fan to run after all motors are disabled
+  bool      auto_mode;       // Default true
+} controllerFan_settings_t;
+
+#ifndef CONTROLLERFAN_SPEED_ACTIVE
+  #define CONTROLLERFAN_SPEED_ACTIVE 255
+#endif
+#ifndef CONTROLLERFAN_SPEED_IDLE
+  #define CONTROLLERFAN_SPEED_IDLE     0
+#endif
+#ifndef CONTROLLERFAN_IDLE_TIME
+  #define CONTROLLERFAN_IDLE_TIME     60
+#endif
+
+static constexpr controllerFan_settings_t controllerFan_defaults = {
+  CONTROLLERFAN_SPEED_ACTIVE,
+  CONTROLLERFAN_SPEED_IDLE,
+  CONTROLLERFAN_IDLE_TIME,
+  true
+};
+
+#if ENABLED(USE_CONTROLLER_FAN)
+
+class ControllerFan {
+  private:
+    static uint8_t speed;
+    static void set_fan_speed(const uint8_t s);
+
+  public:
+    #if ENABLED(CONTROLLER_FAN_EDITABLE)
+      static controllerFan_settings_t settings;
+    #else
+      static const controllerFan_settings_t &settings;
+    #endif
+    static inline bool state() { return speed > 0; }
+    static inline void init() { reset(); }
+    static inline void reset() { TERN_(CONTROLLER_FAN_EDITABLE, settings = controllerFan_defaults); }
+    static void setup();
+    static void update();
+};
+
+extern ControllerFan controllerFan;
+
+#endif