1 files changed, 108 insertions, 0 deletions
diff --git a/Marlin/src/feature/pause.h b/Marlin/src/feature/pause.h
new file mode 100644
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--- /dev/null
+++ b/Marlin/src/feature/pause.h
@@ -0,0 +1,108 @@
+/**
+ * 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
+
+/**
+ * feature/pause.h - Pause feature support functions
+ * This may be combined with related G-codes if features are consolidated.
+ */
+
+typedef struct {
+  float unload_length, load_length;
+} fil_change_settings_t;
+
+#include "../inc/MarlinConfigPre.h"
+
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+
+#include "../libs/nozzle.h"
+
+enum PauseMode : char {
+  PAUSE_MODE_SAME,
+  PAUSE_MODE_PAUSE_PRINT,
+  PAUSE_MODE_CHANGE_FILAMENT,
+  PAUSE_MODE_LOAD_FILAMENT,
+  PAUSE_MODE_UNLOAD_FILAMENT
+};
+
+enum PauseMessage : char {
+  PAUSE_MESSAGE_PARKING,
+  PAUSE_MESSAGE_CHANGING,
+  PAUSE_MESSAGE_WAITING,
+  PAUSE_MESSAGE_UNLOAD,
+  PAUSE_MESSAGE_INSERT,
+  PAUSE_MESSAGE_LOAD,
+  PAUSE_MESSAGE_PURGE,
+  PAUSE_MESSAGE_OPTION,
+  PAUSE_MESSAGE_RESUME,
+  PAUSE_MESSAGE_STATUS,
+  PAUSE_MESSAGE_HEAT,
+  PAUSE_MESSAGE_HEATING
+};
+
+#if HAS_LCD_MENU
+  enum PauseMenuResponse : char {
+    PAUSE_RESPONSE_WAIT_FOR,
+    PAUSE_RESPONSE_EXTRUDE_MORE,
+    PAUSE_RESPONSE_RESUME_PRINT
+  };
+  extern PauseMenuResponse pause_menu_response;
+  extern PauseMode pause_mode;
+#endif
+
+extern fil_change_settings_t fc_settings[EXTRUDERS];
+
+extern uint8_t did_pause_print;
+
+#if ENABLED(DUAL_X_CARRIAGE)
+  #define DXC_PARAMS , const int8_t DXC_ext=-1
+  #define DXC_ARGS   , const int8_t DXC_ext
+  #define DXC_PASS   , DXC_ext
+  #define DXC_SAY    , " dxc:", int(DXC_ext)
+#else
+  #define DXC_PARAMS
+  #define DXC_ARGS
+  #define DXC_PASS
+  #define DXC_SAY
+#endif
+
+bool pause_print(const float &retract, const xyz_pos_t &park_point, const float &unload_length=0, const bool show_lcd=false DXC_PARAMS);
+
+void wait_for_confirmation(const bool is_reload=false, const int8_t max_beep_count=0 DXC_PARAMS);
+
+void resume_print(const float &slow_load_length=0, const float &fast_load_length=0, const float &extrude_length=ADVANCED_PAUSE_PURGE_LENGTH,
+                    const int8_t max_beep_count=0, int16_t targetTemp=0 DXC_PARAMS);
+
+bool load_filament(const float &slow_load_length=0, const float &fast_load_length=0, const float &extrude_length=0, const int8_t max_beep_count=0,
+                    const bool show_lcd=false, const bool pause_for_user=false, const PauseMode mode=PAUSE_MODE_PAUSE_PRINT DXC_PARAMS);
+
+bool unload_filament(const float &unload_length, const bool show_lcd=false, const PauseMode mode=PAUSE_MODE_PAUSE_PRINT
+  #if BOTH(FILAMENT_UNLOAD_ALL_EXTRUDERS, MIXING_EXTRUDER)
+    , const float &mix_multiplier=1.0
+  #endif
+);
+
+#else // !ADVANCED_PAUSE_FEATURE
+
+  constexpr uint8_t did_pause_print = 0;
+
+#endif // !ADVANCED_PAUSE_FEATURE