Maintenance park

Marlin/src/feature/pause.cpp

@@ -392,6 +392,10 @@ bool unload_filament(const_float_t unload_length, const bool show_lcd/*=false*/,
  * Return 'true' if pause was completed, 'false' for abort
  */
 uint8_t did_pause_print = 0;
+bool maintenance_park_enabled = false;
+void maintenance_park_disable(){
+  maintenance_park_enabled = false;
+};
 
 bool pause_print(const_float_t retract, const xyz_pos_t &park_point, const bool show_lcd/*=false*/, const_float_t unload_length/*=0*/ DXC_ARGS) {
   DEBUG_SECTION(pp, "pause_print", true);

Marlin/src/feature/pause.h

@@ -72,6 +72,8 @@ enum PauseMessage : char {
 extern fil_change_settings_t fc_settings[EXTRUDERS];
 
 extern uint8_t did_pause_print;
+extern bool maintenance_park_enabled;
+extern void maintenance_park_disable();
 
 #define DXC_PARAMS OPTARG(DUAL_X_CARRIAGE, const int8_t DXC_ext=-1)
 #define DXC_ARGS   OPTARG(DUAL_X_CARRIAGE, const int8_t DXC_ext)

Marlin/src/gcode/feature/pause/M125.cpp

@@ -31,6 +31,7 @@
 #include "../../../module/motion.h"
 #include "../../../module/printcounter.h"
 #include "../../../sd/cardreader.h"
+#include "../../../MarlinCore.h" // for idle, kill
 
 #if ENABLED(POWER_LOSS_RECOVERY)
   #include "../../../feature/powerloss.h"
@@ -57,10 +58,19 @@
  *    W<pos>    = Override park position W (requires AXIS*_NAME 'W')
  *    Z<linear> = Override Z raise
  *
+ *    //Park + unlocked LCD ( all menus available for maintenance during printing )
+ *    T<linear> = Maintenance park, if a value, add beeps each 'value' seconds (requires LCD to resume)
+ *
  *  With an LCD menu:
  *    P<bool>   = Always show a prompt and await a response
  */
+ void show_m125t(bool flipflap){
+   if (flipflap) ui.set_status("M125T...");
+   else ui.set_status("M125T");
+ }
+
 void GcodeSuite::M125() {
+  if (maintenance_park_enabled) return;
   // Initial retract before move to filament change position
   const float retract = TERN0(HAS_EXTRUDERS, -ABS(parser.axisunitsval('L', E_AXIS, PAUSE_PARK_RETRACT_LENGTH)));
 
@@ -90,17 +100,44 @@ void GcodeSuite::M125() {
 
   const bool sd_printing = TERN0(SDSUPPORT, IS_SD_PRINTING());
 
-  ui.pause_show_message(PAUSE_MESSAGE_PARKING, PAUSE_MODE_PAUSE_PRINT);
+  //Maintenance park
+  if (parser.seen('T')) {
+    if (ENABLED(HAS_MARLINUI_MENU)){
+      show_m125t(1);
+      maintenance_park_enabled = true;
+      const bool show_lcd = false;
+      if (pause_print(retract, park_point, show_lcd, 0)) {
+        millis_t start_time = millis();
+        bool flipflap = 0;
+        uint8_t can_beep = 0;
+        while(maintenance_park_enabled){
+          idle();
+          if ( (millis() - start_time) > 1000 ) {
+            start_time = millis();
+            if (parser.seenval('T') && can_beep == parser.linearval('T')) { BUZZ(100, 1000); can_beep = 0; }
+            show_m125t(flipflap);
+            flipflap = flipflap? 0:1;
+            can_beep++;
+          }
+        }
+      }
+      resume_print(0, 0, -retract, 0);
+    }
+  }
+  else {
+    ui.pause_show_message(PAUSE_MESSAGE_PARKING, PAUSE_MODE_PAUSE_PRINT);
 
-  // If possible, show an LCD prompt with the 'P' flag
-  const bool show_lcd = TERN0(HAS_MARLINUI_MENU, parser.boolval('P'));
+    // If possible, show an LCD prompt with the 'P' flag
+    const bool show_lcd = TERN0(HAS_MARLINUI_MENU, parser.boolval('P'));
 
-  if (pause_print(retract, park_point, show_lcd, 0)) {
-    if (ENABLED(EXTENSIBLE_UI) || BOTH(EMERGENCY_PARSER, HOST_PROMPT_SUPPORT) || !sd_printing || show_lcd) {
-      wait_for_confirmation(false, 0);
-      resume_print(0, 0, -retract, 0);
+    if (pause_print(retract, park_point, show_lcd, 0)) {
+      if (ENABLED(EXTENSIBLE_UI) || BOTH(EMERGENCY_PARSER, HOST_PROMPT_SUPPORT) || !sd_printing || show_lcd) {
+        wait_for_confirmation(false, 0);
+        resume_print(0, 0, -retract, 0);
+      }
     }
   }
+
 }
 
 #endif // PARK_HEAD_ON_PAUSE

Marlin/src/lcd/menu/menu_main.cpp

@@ -66,6 +66,10 @@
   #include "../../feature/repeat.h"
 #endif
 
+#if ENABLED(PARK_HEAD_ON_PAUSE)
+  #include "../../feature/pause.h"
+#endif
+
 void menu_tune();
 void menu_cancelobject();
 void menu_motion();
@@ -313,8 +317,15 @@ void menu_main() {
       sdcard_menu_items();
     #endif
 
-    if (TERN0(MACHINE_CAN_PAUSE, printingIsPaused()))
-      ACTION_ITEM(MSG_RESUME_PRINT, ui.resume_print);
+    #if ENABLED(PARK_HEAD_ON_PAUSE)
+      if (TERN0(MACHINE_CAN_PAUSE, printingIsPaused()))
+        if (maintenance_park_enabled) ACTION_ITEM(MSG_RESUME_PRINT, maintenance_park_disable);
+      else
+        ACTION_ITEM(MSG_RESUME_PRINT, ui.resume_print);
+    #else
+      if (TERN0(MACHINE_CAN_PAUSE, printingIsPaused()))
+        ACTION_ITEM(MSG_RESUME_PRINT, ui.resume_print);
+    #endif
 
     #if ENABLED(HOST_START_MENU_ITEM) && defined(ACTION_ON_START)
       ACTION_ITEM(MSG_HOST_START_PRINT, hostui.start);