Add HOST_PROMPT_SUPPORT (#13039)

Marlin/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/HAL/HAL_LPC1768/MarlinSerial.h

@@ -54,9 +54,7 @@ public:
       emergency_parser.update(emergency_state, c);
       return true; // do not discard character
     }
-  #endif
 
-  #if ENABLED(EMERGENCY_PARSER)
     EmergencyParser::State emergency_state;
   #endif
 };

Marlin/src/Marlin.cpp

@@ -56,6 +56,10 @@
 #include "gcode/parser.h"
 #include "gcode/queue.h"
 
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #include "feature/host_actions.h"
+#endif
+
 #if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
   #include "libs/buzzer.h"
 #endif
@@ -315,37 +319,98 @@ void disable_all_steppers() {
   disable_e_steppers();
 }
 
-#if HAS_ACTION_COMMANDS
+#if ENABLED(FILAMENT_RUNOUT_SENSOR)
 
-  void host_action(const char * const pstr, const bool eol=true) {
+  void event_filament_runout() {
-    SERIAL_ECHOPGM("//action:");
+
-    serialprintPGM(pstr);
+    #if ENABLED(ADVANCED_PAUSE_FEATURE)
-    if (eol) SERIAL_EOL();
+      if (did_pause_print) return;  // Action already in progress. Purge triggered repeated runout.
+    #endif
+
+    #if ENABLED(EXTENSIBLE_UI)
+      ExtUI::onFilamentRunout(ExtUI::getActiveTool());
+    #endif
+
+    const char tool = '0'
+      #if NUM_RUNOUT_SENSORS > 1
+        + active_extruder
+      #endif
+    ;
+
+    //action:out_of_filament
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_reason = PROMPT_FILAMENT_RUNOUT;
+      host_action_prompt_end();
+      host_action_prompt_begin(PSTR("FilamentRunout T"), false);
+      SERIAL_CHAR(tool);
+      SERIAL_EOL();
+      host_action_prompt_show();
+    #endif
+
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      if (!runout.host_handling
+        && ( strstr(FILAMENT_RUNOUT_SCRIPT, "M600")
+          || strstr(FILAMENT_RUNOUT_SCRIPT, "M125")
+          #if ENABLED(ADVANCED_PAUSE_FEATURE)
+            || strstr(FILAMENT_RUNOUT_SCRIPT, "M25")
+          #endif
+        )
+      ) {
+        host_action_paused(false);
+      }
+      else {
+        // Legacy Repetier command for use until newer version supports standard dialog
+        // To be removed later when pause command also triggers dialog
+        #ifdef ACTION_ON_FILAMENT_RUNOUT
+          host_action(PSTR(ACTION_ON_FILAMENT_RUNOUT " T"), false);
+          SERIAL_CHAR(tool);
+          SERIAL_EOL();
+        #endif
+
+        host_action_pause(false);
+      }
+      SERIAL_ECHOPGM(" " ACTION_REASON_ON_FILAMENT_RUNOUT " ");
+      SERIAL_CHAR(tool);
+      SERIAL_EOL();
+
+    #endif // HOST_ACTION_COMMANDS
+
+    if (!runout.host_handling)
+      enqueue_and_echo_commands_P(PSTR(FILAMENT_RUNOUT_SCRIPT));
   }
 
-  #ifdef ACTION_ON_KILL
+#endif // FILAMENT_RUNOUT_SENSOR
-    void host_action_kill() { host_action(PSTR(ACTION_ON_KILL)); }
-  #endif
-  #ifdef ACTION_ON_PAUSE
-    void host_action_pause() { host_action(PSTR(ACTION_ON_PAUSE)); }
-  #endif
-  #ifdef ACTION_ON_PAUSED
-    void host_action_paused() { host_action(PSTR(ACTION_ON_PAUSED)); }
-  #endif
-  #ifdef ACTION_ON_RESUME
-    void host_action_resume() { host_action(PSTR(ACTION_ON_RESUME)); }
-  #endif
-  #ifdef ACTION_ON_RESUMED
-    void host_action_resumed() { host_action(PSTR(ACTION_ON_RESUMED)); }
-  #endif
-  #ifdef ACTION_ON_CANCEL
-    void host_action_cancel() { host_action(PSTR(ACTION_ON_CANCEL)); }
-  #endif
-  #ifdef ACTION_ON_FILAMENT_RUNOUT
-    void host_action_filament_runout(const bool eol/*=true*/) { host_action(PSTR(ACTION_ON_FILAMENT_RUNOUT), eol); }
-  #endif
 
-#endif // HAS_ACTION_COMMANDS
+#if ENABLED(G29_RETRY_AND_RECOVER)
+
+  void event_probe_failure() {
+    #ifdef G29_FAILURE_COMMANDS
+      process_subcommands_now_P(PSTR(G29_FAILURE_COMMANDS));
+    #endif
+    #ifdef ACTION_ON_G29_FAILURE
+      host_action(PSTR(ACTION_ON_G29_FAILURE)); }
+    #endif
+    #if ENABLED(G29_HALT_ON_FAILURE)
+      #ifdef ACTION_ON_CANCEL
+        host_action_cancel();
+      #endif
+      kill(PSTR(MSG_ERR_PROBING_FAILED));
+    #endif
+  }
+
+  void event_probe_recover() {
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_do(PROMPT_INFO, PSTR("G29 Retrying"));
+    #endif
+    #ifdef G29_RECOVER_COMMANDS
+      process_subcommands_now_P(PSTR(G29_RECOVER_COMMANDS));
+    #endif
+    #ifdef ACTION_ON_G29_RECOVER
+      host_action(PSTR(ACTION_ON_G29_RECOVER));
+    #endif
+  }
+
+#endif
 
 /**
  * Manage several activities:

Marlin/src/Marlin.h

@@ -370,26 +370,11 @@ void protected_pin_err();
   inline void suicide() { OUT_WRITE(SUICIDE_PIN, LOW); }
 #endif
 
-#if HAS_ACTION_COMMANDS
+#if ENABLED(FILAMENT_RUNOUT_SENSOR)
-  #ifdef ACTION_ON_KILL
+  void event_filament_runout();
-    void host_action_kill();
-  #endif
-  #ifdef ACTION_ON_PAUSE
-    void host_action_pause();
-  #endif
-  #ifdef ACTION_ON_PAUSED
-    void host_action_paused();
-  #endif
-  #ifdef ACTION_ON_RESUME
-    void host_action_resume();
-  #endif
-  #ifdef ACTION_ON_RESUMED
-    void host_action_resumed();
-  #endif
-  #ifdef ACTION_ON_CANCEL
-    void host_action_cancel();
-  #endif
-  #ifdef ACTION_ON_FILAMENT_RUNOUT
-    void host_action_filament_runout(const bool eol=true);
 #endif
+
+#if ENABLED(G29_RETRY_AND_RECOVER)
+  void event_probe_recover();
+  void event_probe_failure();
 #endif

Marlin/src/config/default/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/default/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/3DFabXYZ/Migbot/Configuration.h

@@ -1039,20 +1039,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/3DFabXYZ/Migbot/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2016,32 +2010,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration.h

@@ -1053,20 +1053,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/AliExpress/CL-260/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Anet/A2/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Anet/A2/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Anet/A2plus/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Anet/A2plus/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Anet/A6/Configuration.h

@@ -1147,20 +1147,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

@@ -1005,13 +1005,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2012,32 +2006,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Anet/A8/Configuration.h

@@ -1046,20 +1046,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/AnyCubic/i3/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/AnyCubic/i3/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/ArmEd/Configuration.h

@@ -1034,20 +1034,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/ArmEd/Configuration_adv.h

@@ -1011,13 +1011,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2018,32 +2012,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Azteeg/X5GT/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -1005,13 +1005,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2012,32 +2006,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/BIBO/TouchX/default/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/BQ/Hephestos/Configuration.h

@@ -1021,20 +1021,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/BQ/Hephestos_2/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_INVERTING false // set to true to invert the logic of the sensor.
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -1014,13 +1014,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2021,32 +2015,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/BQ/WITBOX/Configuration.h

@@ -1021,20 +1021,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Cartesio/Configuration.h

@@ -1032,20 +1032,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Cartesio/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/CR-10/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2016,32 +2010,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/CR-10S/Configuration.h

@@ -1034,20 +1034,10 @@
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
   #define FIL_RUNOUT_PIN 2 // Creality CR10-S stock sensor
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/CR-10mini/Configuration.h

@@ -1052,20 +1052,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/CR-8/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/CR-8/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/Ender-2/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/Ender-2/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/Ender-3/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/Ender-3/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Creality/Ender-4/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Creality/Ender-4/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Einstart-S/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Einstart-S/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Felix/Configuration.h

@@ -1015,20 +1015,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Felix/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Felix/DUAL/Configuration.h

@@ -1015,20 +1015,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/FlashForge/CreatorPro/Configuration.h

@@ -1026,20 +1026,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/FlashForge/CreatorPro/Configuration_adv.h

@@ -1005,13 +1005,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2012,32 +2006,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration.h

@@ -1039,20 +1039,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Formbot/Raptor/Configuration.h

@@ -1131,20 +1131,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Formbot/Raptor/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2017,32 +2011,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-#define ACTION_ON_PAUSE   "pause"
-#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration.h

@@ -1063,20 +1063,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration_adv.h

@@ -1011,13 +1011,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2018,32 +2012,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-#define ACTION_ON_PAUSE   "pause"
-#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration.h

@@ -1058,20 +1058,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -1011,13 +1011,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-#define ACTION_ON_PAUSE   "pause"
-#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Geeetech/A10M/Configuration.h

@@ -1018,20 +1018,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/A10M/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Geeetech/A20M/Configuration.h

@@ -1018,20 +1018,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/A20M/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Geeetech/GT2560/Configuration.h

@@ -1048,20 +1048,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/MeCreator2/Configuration.h

@@ -1040,20 +1040,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/MeCreator2/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -1999,32 +1993,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h

@@ -1049,20 +1049,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h

@@ -1048,20 +1048,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Infitary/i3-M508/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/JGAurora/A5/Configuration.h

@@ -1045,20 +1045,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/MakerParts/Configuration.h

@@ -1053,20 +1053,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/MakerParts/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Malyan/M150/Configuration.h

@@ -1057,20 +1057,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Malyan/M200/Configuration.h

@@ -1032,20 +1032,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Micromake/C1/basic/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Mks/Robin/Configuration.h

@@ -1034,20 +1034,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Mks/Robin/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Mks/Sbase/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

@@ -1014,13 +1014,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2021,32 +2015,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/RapideLite/RL200/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/RapideLite/RL200/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/RepRapPro/Huxley/Configuration.h

@@ -1082,20 +1082,10 @@ Black rubber belt(MXL), 18 - tooth aluminium pulley : 87.489 step per mm (Huxley
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/RepRapWorld/Megatronics/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/RigidBot/Configuration.h

@@ -1031,20 +1031,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/RigidBot/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/SCARA/Configuration.h

@@ -1046,20 +1046,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/SCARA/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/STM32F10/Configuration.h

@@ -1035,20 +1035,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/STM32F4/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Sanguinololu/Configuration.h

@@ -1064,20 +1064,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/TheBorg/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/TheBorg/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/TinyBoy2/Configuration.h

@@ -1089,20 +1089,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Tronxy/X1/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Tronxy/X3A/Configuration.h

@@ -1037,20 +1037,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Tronxy/X3A/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Tronxy/X5S/Configuration.h

@@ -1032,20 +1032,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Tronxy/XY100/Configuration.h

@@ -1044,20 +1044,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/UltiMachine/Archim1/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/UltiMachine/Archim1/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/UltiMachine/Archim2/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/VORONDesign/Configuration.h

@@ -1042,20 +1042,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/VORONDesign/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Velleman/K8200/Configuration.h

@@ -1063,20 +1063,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

@@ -1019,13 +1019,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2026,32 +2020,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Velleman/K8400/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Velleman/K8400/Dual-head/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/WASP/PowerWASP/Configuration.h

@@ -1052,20 +1052,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/WASP/PowerWASP/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration.h

@@ -1043,20 +1043,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/adafruit/ST7565/Configuration.h

@@ -1033,20 +1033,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/Anycubic/Kossel/Configuration.h

@@ -1221,20 +1221,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/Anycubic/Kossel/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration.h

@@ -1161,20 +1161,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration.h

@@ -1160,20 +1160,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration.h

@@ -1160,20 +1160,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/Geeetech/Rostock 301/Configuration.h

@@ -1151,20 +1151,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/Geeetech/Rostock 301/Configuration_adv.h

@@ -1009,13 +1009,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2016,32 +2010,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/Hatchbox_Alpha/Configuration.h

@@ -1163,20 +1163,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/MKS/SBASE/Configuration.h

@@ -1148,20 +1148,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/MKS/SBASE/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/Tevo Little Monster/Configuration.h

@@ -1152,20 +1152,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/Tevo Little Monster/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2003,32 +1997,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/generic/Configuration.h

@@ -1148,20 +1148,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/generic/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/kossel_mini/Configuration.h

@@ -1150,20 +1150,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/delta/kossel_pro/Configuration.h

@@ -1151,20 +1151,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/kossel_xl/Configuration.h

@@ -1151,20 +1151,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

@@ -1008,13 +1008,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2015,32 +2009,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration.h

@@ -1047,20 +1047,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/makibox/Configuration.h

@@ -1036,20 +1036,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/makibox/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/stm32f103ret6/Configuration.h

@@ -1035,20 +1035,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/tvrrug/Round2/Configuration.h

@@ -1028,20 +1028,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

@@ -1006,13 +1006,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2013,32 +2007,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/config/examples/wt150/Configuration.h

@@ -1038,20 +1038,10 @@
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 
-  // Set one or more commands to run on filament runout.
+  // Set one or more commands to execute on filament runout.
-  //  - Always applies to SD-card printing.
+  // (After 'M412 H' Marlin will ask the host to handle the process.)
-  //  - Applies to host-based printing if ACTION_ON_FILAMENT_RUNOUT is not set.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
 
-  // With this option, if filament runs out during host-based printing, Marlin
-  // will send "//action:<ACTION_ON_FILAMENT_RUNOUT>" to the host and let the
-  // host handle filament change. If left undefined the FILAMENT_RUNOUT_SCRIPT
-  // will be used on filament runout for both host-based and SD-card printing.
-  //
-  // The host must be able to respond to the //action: command set here.
-  //
-  //#define ACTION_ON_FILAMENT_RUNOUT "pause: filament_runout"
-
   // After a runout is detected, continue printing this length of filament
   // before executing the runout script. Useful for a sensor at the end of
   // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.

Marlin/src/config/examples/wt150/Configuration_adv.h

@@ -1007,13 +1007,7 @@
   #define G29_SUCCESS_COMMANDS "M117 Bed leveling done."
   #define G29_RECOVER_COMMANDS "M117 Probe failed. Rewiping.\nG28\nG12 P0 S12 T0"
   #define G29_FAILURE_COMMANDS "M117 Bed leveling failed.\nG0 Z10\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nM300 P25 S880\nM300 P50 S0\nG4 S1"
-  /**
+
-   * Specify an action command to send to the host on a recovery attempt or failure.
-   * Will be sent in the form '//action:ACTION_ON_G29_FAILURE', e.g. '//action:probe_failed'.
-   * The host must be configured to handle the action command.
-   */
-  #define G29_ACTION_ON_RECOVER "probe_rewipe"
-  #define G29_ACTION_ON_FAILURE "probe_failed"
 #endif
 
 // @section extras
@@ -2014,32 +2008,23 @@
 #endif
 
 /**
- * Specify an action command to send to the host when the printer is killed.
+ * Host Action Commands
- * Will be sent in the form '//action:ACTION_ON_KILL', e.g. '//action:poweroff'.
+ *
- * The host must be configured to handle the action command.
+ * Define host streamer action commands in compliance with the standard.
+ *
+ * See https://reprap.org/wiki/G-code#Action_commands
+ * Common commands ........ poweroff, pause, paused, resume, resumed, cancel
+ * G29_RETRY_AND_RECOVER .. probe_rewipe, probe_failed
+ *
+ * Some features add reason codes to extend these commands.
+ *
+ * Host Prompt Support enables Marlin to use the host for user prompts so
+ * filament runout and other processes can be managed from the host side.
  */
-//#define ACTION_ON_KILL "poweroff"
+//#define HOST_ACTION_COMMANDS
-
+#if ENABLED(HOST_ACTION_COMMANDS)
-/**
+  //#define HOST_PROMPT_SUPPORT
- * Specify an action command to send to the host on pause and resume.
+#endif
- * Will be sent in the form '//action:ACTION_ON_PAUSE', e.g. '//action:pause'.
- * The host must be configured to handle the action command.
- *
- *   PAUSE / RESUME : Used in non-parking scenarios where the host handles the
- *                    action while Marlin continues to process G-Code. (M24/M25)
- *
- * PAUSED / RESUMED : Used in scenarios where Marlin handles pause and filament-
- *                    change actions and the host needs to stop sending commands
- *                    until the machine is ready to resume. (M125/M600)
- *
- *           CANCEL : Instructs the host to abort the print job. Used when the
- *                    print is canceled from the LCD menu.
- */
-//#define ACTION_ON_PAUSE   "pause"
-//#define ACTION_ON_RESUME  "resume"
-//#define ACTION_ON_PAUSED  "paused"
-//#define ACTION_ON_RESUMED "resumed"
-//#define ACTION_ON_CANCEL  "cancel"
 
 //===========================================================================
 //====================== I2C Position Encoder Settings ======================

Marlin/src/feature/emergency_parser.cpp

@@ -34,6 +34,10 @@
 bool EmergencyParser::killed_by_M112, // = false
      EmergencyParser::enabled;
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  uint8_t EmergencyParser::M876_reason; // = 0
+#endif
+
 // Global instance
 EmergencyParser emergency_parser;
 

Marlin/src/feature/emergency_parser.h

@@ -27,15 +27,20 @@
 
 #define FORCE_INLINE __attribute__((always_inline)) inline
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  #include "host_actions.h"
+#endif
+
 // External references
 extern volatile bool wait_for_user, wait_for_heatup;
 void quickstop_stepper();
+void host_response_handler(const uint8_t response);
 
 class EmergencyParser {
 
 public:
 
-  // Currently looking for: M108, M112, M410
+  // Currently looking for: M108, M112, M410, M876
   enum State : char {
     EP_RESET,
     EP_N,
@@ -48,11 +53,22 @@ public:
     EP_M4,
     EP_M41,
     EP_M410,
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      EP_M8,
+      EP_M87,
+      EP_M876,
+      EP_M876S,
+      EP_M876SN,
+    #endif
     EP_IGNORE // to '\n'
   };
 
   static bool killed_by_M112;
 
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    static uint8_t M876_reason;
+  #endif
+
   EmergencyParser() { enable(); }
 
   FORCE_INLINE static void enable()  { enabled = true; }
@@ -86,6 +102,9 @@ public:
           case ' ': break;
           case '1': state = EP_M1;     break;
           case '4': state = EP_M4;     break;
+          #if ENABLED(HOST_PROMPT_SUPPORT)
+            case '8': state = EP_M8;     break;
+          #endif
           default: state  = EP_IGNORE;
         }
         break;
@@ -114,6 +133,37 @@ public:
         state = (c == '0') ? EP_M410 : EP_IGNORE;
         break;
 
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+      case EP_M8:
+        state = (c == '7') ? EP_M87 : EP_IGNORE;
+        break;
+
+      case EP_M87:
+        state = (c == '6') ? EP_M876 : EP_IGNORE;
+        break;
+
+      case EP_M876:
+        switch(c) {
+          case ' ': break;
+          case 'S': state = EP_M876S; break;
+          default:  state = EP_IGNORE; break;
+        }
+        break;
+
+      case EP_M876S:
+        switch (c) {
+          case ' ': break;
+          case '0': case '1': case '2':
+          case '3': case '4': case '5':
+          case '6': case '7': case '8':
+          case '9':
+            state = EP_M876SN;
+            M876_reason = (uint8_t)(c - '0');
+            break;
+        }
+        break;
+      #endif
+
       case EP_IGNORE:
         if (c == '\n') state = EP_RESET;
         break;
@@ -124,6 +174,9 @@ public:
             case EP_M108: wait_for_user = wait_for_heatup = false; break;
             case EP_M112: killed_by_M112 = true; break;
             case EP_M410: quickstop_stepper(); break;
+            #if ENABLED(HOST_PROMPT_SUPPORT)
+              case EP_M876SN: host_response_handler(M876_reason); break;
+            #endif
             default: break;
           }
           state = EP_RESET;

Marlin/src/feature/host_actions.cpp

@@ -0,0 +1,157 @@
+/**
+ * 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 "../inc/MarlinConfig.h"
+
+#if ENABLED(HOST_ACTION_COMMANDS)
+
+#include "host_actions.h"
+
+//#define DEBUG_HOST_ACTIONS
+
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+  #include "pause.h"
+  #include "../gcode/queue.h"
+#endif
+
+#if ENABLED(FILAMENT_RUNOUT_SENSOR)
+  #include "runout.h"
+#endif
+
+extern volatile bool wait_for_user;
+
+void host_action(const char * const pstr, const bool eol) {
+  SERIAL_ECHOPGM("//action:");
+  serialprintPGM(pstr);
+  if (eol) SERIAL_EOL();
+}
+
+#ifdef ACTION_ON_KILL
+  void host_action_kill() { host_action(PSTR(ACTION_ON_KILL)); }
+#endif
+#ifdef ACTION_ON_PAUSE
+  void host_action_pause(const bool eol/*=true*/) { host_action(PSTR(ACTION_ON_PAUSE), eol); }
+#endif
+#ifdef ACTION_ON_PAUSED
+  void host_action_paused(const bool eol/*=true*/) { host_action(PSTR(ACTION_ON_PAUSED), eol); }
+#endif
+#ifdef ACTION_ON_RESUME
+  void host_action_resume() { host_action(PSTR(ACTION_ON_RESUME)); }
+#endif
+#ifdef ACTION_ON_RESUMED
+  void host_action_resumed() { host_action(PSTR(ACTION_ON_RESUMED)); }
+#endif
+#ifdef ACTION_ON_CANCEL
+  void host_action_cancel() { host_action(PSTR(ACTION_ON_CANCEL)); }
+#endif
+
+#if ENABLED(HOST_PROMPT_SUPPORT)
+
+  PromptReason host_prompt_reason = PROMPT_NOT_DEFINED;
+
+  void host_action_prompt(const char * const ptype, const bool eol=true) {
+    host_action(PSTR("prompt_"), false);
+    serialprintPGM(ptype);
+    if (eol) SERIAL_EOL();
+  }
+
+  void host_action_prompt_plus(const char * const ptype, const char * const pstr, const bool eol=true) {
+    host_action_prompt(ptype, false);
+    SERIAL_CHAR(' ');
+    serialprintPGM(pstr);
+    if (eol) SERIAL_EOL();
+  }
+  void host_action_prompt_begin(const char * const pstr, const bool eol/*=true*/) { host_action_prompt_plus(PSTR("begin"), pstr, eol); }
+  void host_action_prompt_button(const char * const pstr) { host_action_prompt_plus(PSTR("button"), pstr); }
+  void host_action_prompt_end() { host_action_prompt(PSTR("end")); }
+  void host_action_prompt_show() { host_action_prompt(PSTR("show")); }
+  void host_prompt_do(const PromptReason reason, const char * const pstr, const char * const pbtn/*=NULL*/) {
+    host_prompt_reason = reason;
+    host_action_prompt_end();
+    host_action_prompt_begin(pstr);
+    if (pbtn) host_action_prompt_button(pbtn);
+    host_action_prompt_show();
+  }
+
+  inline void say_m876_response(const char * const pstr) {
+    SERIAL_ECHOPGM("M876 Responding PROMPT_");
+    serialprintPGM(pstr);
+    SERIAL_EOL();
+  }
+
+  void host_response_handler(const uint8_t response) {
+    #ifdef DEBUG_HOST_ACTIONS
+      SERIAL_ECHOLNPAIR("M86 Handle Reason: ", host_prompt_reason);
+      SERIAL_ECHOLNPAIR("M86 Handle Response: ", response);
+    #endif
+    const char *msg = PSTR("UNKNOWN STATE");
+    const PromptReason hpr = host_prompt_reason;
+    host_prompt_reason = PROMPT_NOT_DEFINED;
+    switch (hpr) {
+      case PROMPT_FILAMENT_RUNOUT:
+        msg = PSTR("FILAMENT_RUNOUT");
+        if (response == 0) {
+          advanced_pause_menu_response = ADVANCED_PAUSE_RESPONSE_EXTRUDE_MORE;
+          host_action_prompt_end();   // Close current prompt
+          host_action_prompt_begin(PSTR("Paused"));
+          host_action_prompt_button(PSTR("Purge More"));
+          if (false
+            #if ENABLED(FILAMENT_RUNOUT_SENSOR)
+              || runout.filament_ran_out
+            #endif
+          )
+            host_action_prompt_button(PSTR("DisableRunout"));
+          else {
+            host_prompt_reason = PROMPT_FILAMENT_RUNOUT;
+            host_action_prompt_button(PSTR("Continue"));
+          }
+          host_action_prompt_show();
+        }
+        else if (response == 1) {
+          #if ENABLED(FILAMENT_RUNOUT_SENSOR)
+            if (runout.filament_ran_out) {
+              runout.enabled = false;
+              runout.reset();
+            }
+          #endif
+          advanced_pause_menu_response = ADVANCED_PAUSE_RESPONSE_RESUME_PRINT;
+        }
+        break;
+      case PROMPT_USER_CONTINUE:
+        msg = PSTR("FILAMENT_RUNOUT_CONTINUE");
+        wait_for_user = false;
+        break;
+      case PROMPT_PAUSE_RESUME:
+        msg = PSTR("LCD_PAUSE_RESUME");
+        enqueue_and_echo_commands_P(PSTR("M24"));
+        break;
+      case PROMPT_INFO:
+        msg = PSTR("GCODE_INFO");
+        break;
+      default: break;
+    }
+    say_m876_response(msg);
+  }
+
+#endif // HOST_PROMPT_SUPPORT
+
+#endif // HOST_ACTION_COMMANDS

Marlin/src/feature/host_actions.h

@@ -0,0 +1,70 @@
+/**
+ * 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/>.
+ *
+ */
+#pragma once
+
+#include "../inc/MarlinConfig.h"
+
+void host_action(const char * const pstr, const bool eol=true);
+
+#ifdef ACTION_ON_KILL
+  void host_action_kill();
+#endif
+#ifdef ACTION_ON_PAUSE
+  void host_action_pause(const bool eol=true);
+#endif
+#ifdef ACTION_ON_PAUSED
+  void host_action_paused(const bool eol=true);
+#endif
+#ifdef ACTION_ON_RESUME
+  void host_action_resume();
+#endif
+#ifdef ACTION_ON_RESUMED
+  void host_action_resumed();
+#endif
+#ifdef ACTION_ON_CANCEL
+  void host_action_cancel();
+#endif
+
+#if ENABLED(HOST_PROMPT_SUPPORT)
+
+  enum PromptReason : uint8_t {
+    PROMPT_NOT_DEFINED,
+    PROMPT_FILAMENT_RUNOUT,
+    PROMPT_USER_CONTINUE,
+    PROMPT_FILAMENT_RUNOUT_REHEAT,
+    PROMPT_PAUSE_RESUME,
+    PROMPT_INFO
+  };
+
+  extern PromptReason host_prompt_reason;
+
+  void host_response_handler(const uint8_t response);
+  void host_action_prompt_begin(const char * const pstr, const bool eol=true);
+  void host_action_prompt_button(const char * const pstr);
+  void host_action_prompt_end();
+  void host_action_prompt_show();
+  void host_prompt_do(const PromptReason type, const char * const pstr, const char * const pbtn=NULL);
+  inline void host_prompt_open(const PromptReason reason, const char * const pstr, const char * const pbtn=NULL) {
+    if (host_prompt_reason == PROMPT_NOT_DEFINED) host_prompt_do(reason, pstr, pbtn);
+  }
+
+#endif

Marlin/src/feature/pause.cpp

@@ -45,6 +45,10 @@
   #include "runout.h"
 #endif
 
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #include "host_actions.h"
+#endif
+
 #include "../lcd/ultralcd.h"
 #include "../libs/buzzer.h"
 #include "../libs/nozzle.h"
@@ -154,6 +158,20 @@ bool load_filament(const float &slow_load_length/*=0*/, const float &fast_load_l
 
     KEEPALIVE_STATE(PAUSED_FOR_USER);
     wait_for_user = true;    // LCD click or M108 will clear this
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      const char tool = '0'
+        #if NUM_RUNOUT_SENSORS > 1
+          + active_extruder
+        #endif
+      ;
+      host_prompt_reason = PROMPT_USER_CONTINUE;
+      host_action_prompt_end();
+      host_action_prompt_begin(PSTR("Load Filament T"), false);
+      SERIAL_CHAR(tool);
+      SERIAL_EOL();
+      host_action_prompt_button(PSTR("Continue"));
+      host_action_prompt_show();
+    #endif
     while (wait_for_user) {
       #if HAS_BUZZER
         filament_change_beep(max_beep_count);
@@ -206,6 +224,9 @@ bool load_filament(const float &slow_load_length/*=0*/, const float &fast_load_l
     #endif
 
     wait_for_user = true;
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Continuous Purge Running..."), PSTR("Continue"));
+    #endif
     for (float purge_count = purge_length; purge_count > 0 && wait_for_user; --purge_count)
       do_pause_e_move(1, ADVANCED_PAUSE_PURGE_FEEDRATE);
     wait_for_user = false;
@@ -224,6 +245,24 @@ bool load_filament(const float &slow_load_length/*=0*/, const float &fast_load_l
       }
 
       // Show "Purge More" / "Resume" menu and wait for reply
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_reason = PROMPT_FILAMENT_RUNOUT;
+        host_action_prompt_end();   // Close current prompt
+        host_action_prompt_begin(PSTR("Paused"));
+        host_action_prompt_button(PSTR("PurgeMore"));
+        if (false
+          #if ENABLED(FILAMENT_RUNOUT_SENSOR)
+            || runout.filament_ran_out
+          #endif
+        )
+          host_action_prompt_button(PSTR("DisableRunout"));
+        else {
+          host_prompt_reason = PROMPT_FILAMENT_RUNOUT;
+          host_action_prompt_button(PSTR("Continue"));
+        }
+        host_action_prompt_show();
+      #endif
+
       #if HAS_LCD_MENU
         if (show_lcd) {
           KEEPALIVE_STATE(PAUSED_FOR_USER);
@@ -324,11 +363,16 @@ bool pause_print(const float &retract, const point_t &park_point, const float &u
 
   if (did_pause_print) return false; // already paused
 
+  #if ENABLED(HOST_ACTION_COMMANDS)
     #ifdef ACTION_ON_PAUSED
       host_action_paused();
     #elif defined(ACTION_ON_PAUSE)
       host_action_pause();
     #endif
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_open(PROMPT_INFO, PSTR("Pause"));
+    #endif
+  #endif
 
   if (!DEBUGGING(DRYRUN) && unload_length && thermalManager.targetTooColdToExtrude(active_extruder)) {
     SERIAL_ECHO_MSG(MSG_ERR_HOTEND_TOO_COLD);
@@ -445,7 +489,9 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
   // Wait for filament insert by user and press button
   KEEPALIVE_STATE(PAUSED_FOR_USER);
   wait_for_user = true;    // LCD click or M108 will clear this
-
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Nozzle Parked"), PSTR("Continue"));
+  #endif
   while (wait_for_user) {
     #if HAS_BUZZER
       filament_change_beep(max_beep_count);
@@ -463,9 +509,17 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
       #endif
       SERIAL_ECHO_MSG(_PMSG(MSG_FILAMENT_CHANGE_HEAT));
 
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_do(PROMPT_USER_CONTINUE, PSTR("HeaterTimeout"), PSTR("Reheat"));
+      #endif
+
       // Wait for LCD click or M108
       while (wait_for_user) idle(true);
 
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Reheating"));
+      #endif
+
       // Re-enable the heaters if they timed out
       HOTEND_LOOP() thermalManager.reset_heater_idle_timer(e);
 
@@ -480,7 +534,9 @@ void wait_for_confirmation(const bool is_reload/*=false*/, const int8_t max_beep
 
       HOTEND_LOOP()
         thermalManager.start_heater_idle_timer(e, nozzle_timeout);
-
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Reheat Done"), PSTR("Continue"));
+      #endif
       wait_for_user = true;
       nozzle_timed_out = false;
 
@@ -578,6 +634,10 @@ void resume_print(const float &slow_load_length/*=0*/, const float &fast_load_le
 
   --did_pause_print;
 
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    host_prompt_open(PROMPT_INFO, PSTR("Resume"));
+  #endif
+
   #if ENABLED(SDSUPPORT)
     if (did_pause_print) {
       card.startFileprint();

Marlin/src/feature/prusa_MMU2/mmu2.cpp

@@ -38,6 +38,10 @@ MMU2 mmu2;
 #include "../../module/stepper_indirection.h"
 #include "../../Marlin.h"
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  #include "../../feature/host_actions.h"
+#endif
+
 #define MMU_TODELAY 100
 #define MMU_TIMEOUT 10
 #define MMU_CMD_TIMEOUT 60000ul //5min timeout for mmu commands (except P0)
@@ -791,6 +795,9 @@ void MMU2::filamentRunout() {
       LCD_MESSAGEPGM(MSG_MMU2_EJECT_RECOVER);
       BUZZ(200, 404);
       wait_for_user = true;
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_do(PROMPT_USER_CONTINUE, PSTR("MMU2 Eject Recover"), PSTR("Continue"));
+      #endif
       while (wait_for_user) idle();
       BUZZ(200, 404);
       BUZZ(200, 404);

Marlin/src/feature/runout.cpp

@@ -35,6 +35,10 @@ FilamentMonitor runout;
 bool FilamentMonitorBase::enabled = true,
      FilamentMonitorBase::filament_ran_out;  // = false
 
+#if ENABLED(HOST_ACTION_COMMANDS)
+  bool FilamentMonitorBase::host_handling; // = false
+#endif
+
 /**
  * Called by FilamentSensorSwitch::run when filament is detected.
  * Called by FilamentSensorEncoder::block_completed when motion is detected.

Marlin/src/feature/runout.h

@@ -36,12 +36,21 @@
   #include "../lcd/extensible_ui/ui_api.h"
 #endif
 
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+  #include "pause.h"
+#endif
+
 //#define FILAMENT_RUNOUT_SENSOR_DEBUG
 
 class FilamentMonitorBase {
   public:
-    static bool enabled;
+    static bool enabled, filament_ran_out;
-    static bool filament_ran_out;
+
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      static bool host_handling;
+    #else
+      constexpr static bool host_handling = false;
+    #endif
 };
 
 template<class RESPONSE_T, class SENSOR_T>
@@ -80,7 +89,7 @@ class TFilamentMonitor : public FilamentMonitorBase {
 
     // Give the response a chance to update its counter.
     static inline void run() {
-      if (enabled && !filament_ran_out && (IS_SD_PRINTING() || print_job_timer.isRunning())) {
+      if (enabled && !filament_ran_out && (IS_SD_PRINTING() || print_job_timer.isRunning() || did_pause_print)) {
         #if FILAMENT_RUNOUT_DISTANCE_MM > 0
           cli(); // Prevent RunoutResponseDelayed::block_completed from accumulating here
         #endif
@@ -92,24 +101,7 @@ class TFilamentMonitor : public FilamentMonitorBase {
         #endif
         if (ran_out) {
           filament_ran_out = true;
-          #if ENABLED(EXTENSIBLE_UI)
+          event_filament_runout();
-            ExtUI::onFilamentRunout(ExtUI::getActiveTool());
-          #endif
-          #ifdef ACTION_ON_FILAMENT_RUNOUT
-            #if NUM_RUNOUT_SENSORS > 1
-              host_action_filament_runout(false);
-              SERIAL_CHAR(' ');
-              SERIAL_ECHOLN(int(active_extruder));
-            #else
-              host_action_filament_runout();
-            #endif
-            if (!IS_SD_PRINTING())
-              reset();
-            else
-          #endif
-            {
-              enqueue_and_echo_commands_P(PSTR(FILAMENT_RUNOUT_SCRIPT));
-            }
           planner.synchronize();
         }
       }
@@ -317,7 +309,11 @@ class FilamentSensorBase {
       }
 
       static inline void block_completed(const block_t* const b) {
-        if (b->steps[X_AXIS] || b->steps[Y_AXIS] || b->steps[Z_AXIS]) {
+        if (b->steps[X_AXIS] || b->steps[Y_AXIS] || b->steps[Z_AXIS]
+          #if ENABLED(ADVANCED_PAUSE_FEATURE)
+            || did_pause_print // Allow pause purge move to re-trigger runout state
+          #endif
+        ) {
           // Only trigger on extrusion with XYZ movement to allow filament change and retract/recover.
           const uint8_t e = b->extruder;
           const int32_t steps = b->steps[E_AXIS];

Marlin/src/gcode/config/M43.cpp

@@ -34,6 +34,10 @@
   #include "../../module/servo.h"
 #endif
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  #include "../../feature/host_actions.h"
+#endif
+
 inline void toggle_pins() {
   const bool ignore_protection = parser.boolval('I');
   const int repeat = parser.intval('R', 1),
@@ -286,6 +290,9 @@ void GcodeSuite::M43() {
 
     #if HAS_RESUME_CONTINUE
       wait_for_user = true;
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_do(PROMPT_USER_CONTINUE, PSTR("M43 Wait Called"), PSTR("Continue"));
+      #endif
       KEEPALIVE_STATE(PAUSED_FOR_USER);
     #endif
 

Marlin/src/gcode/feature/runout/M412.cpp

@@ -31,9 +31,17 @@
  * M412: Enable / Disable filament runout detection
  */
 void GcodeSuite::M412() {
-  if (parser.seen('S')) {
+  if (parser.seen("HS"
-    runout.reset();
+    #if ENABLED(HOST_ACTION_COMMANDS)
-    runout.enabled = parser.value_bool();
+      "R"
+    #endif
+  )) {
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      if (parser.seen('H')) runout.host_handling = parser.value_bool();
+    #endif
+    const bool seenR = parser.seen('R'), seenS = parser.seen('S');
+    if (seenR || seenS) runout.reset();
+    if (seenS) runout.enabled = parser.value_bool();
   }
   else {
     SERIAL_ECHO_START();

Marlin/src/gcode/gcode.cpp

@@ -36,6 +36,10 @@ GcodeSuite gcode;
   #include "../module/printcounter.h"
 #endif
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  #include "../feature/host_actions.h"
+#endif
+
 #include "../Marlin.h" // for idle() and suspend_auto_report
 
 millis_t GcodeSuite::previous_move_ms;
@@ -128,27 +132,17 @@ void GcodeSuite::dwell(millis_t time) {
   void GcodeSuite::G29_with_retry() {
     uint8_t retries = G29_MAX_RETRIES;
     while (G29()) { // G29 should return true for failed probes ONLY
-      if (retries--) {
+      if (retries--) event_probe_recover();
-        #ifdef G29_ACTION_ON_RECOVER
-          host_action(PSTR(G29_ACTION_ON_RECOVER));
-        #endif
-        #ifdef G29_RECOVER_COMMANDS
-          process_subcommands_now_P(PSTR(G29_RECOVER_COMMANDS));
-        #endif
-      }
       else {
-        #ifdef G29_FAILURE_COMMANDS
+        event_probe_failure();
-          process_subcommands_now_P(PSTR(G29_FAILURE_COMMANDS));
-        #endif
-        #ifdef G29_ACTION_ON_FAILURE
-          host_action(PSTR(G29_ACTION_ON_FAILURE));
-        #endif
-        #if ENABLED(G29_HALT_ON_FAILURE)
-          kill(PSTR(MSG_ERR_PROBING_FAILED));
-        #endif
         return;
       }
     }
+
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      if (host_prompt_reason == PROMPT_G29_RETRY) host_action_prompt_end();
+    #endif
+
     #ifdef G29_SUCCESS_COMMANDS
       process_subcommands_now_P(PSTR(G29_SUCCESS_COMMANDS));
     #endif
@@ -365,8 +359,15 @@ void GcodeSuite::process_parsed_command(
         case 108: M108(); break;                                  // M108: Cancel Waiting
         case 112: M112(); break;                                  // M112: Emergency Stop
         case 410: M410(); break;                                  // M410: Quickstop - Abort all the planned moves.
+        #if ENABLED(HOST_PROMPT_SUPPORT)
+          case 876: M876(); break;                                  // M876: Handle Host prompt responses
+        #endif
       #else
-        case 108: case 112: case 410: break;
+        case 108: case 112: case 410:
+        #if ENABLED(HOST_PROMPT_SUPPORT)
+          case 876:
+        #endif
+        break;
       #endif
 
       #if ENABLED(HOST_KEEPALIVE_FEATURE)

Marlin/src/gcode/gcode.h

@@ -533,6 +533,9 @@ private:
     static void M108();
     static void M112();
     static void M410();
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      static void M876();
+    #endif
   #endif
 
   static void M109();

Marlin/src/gcode/host/M115.cpp

@@ -132,13 +132,20 @@ void GcodeSuite::M115() {
       #endif
     );
 
-    // EMERGENCY_PARSER (M108, M112, M410)
+    // EMERGENCY_PARSER (M108, M112, M410, M876)
     cap_line(PSTR("EMERGENCY_PARSER")
       #if ENABLED(EMERGENCY_PARSER)
         , true
       #endif
     );
 
+    // PROMPT SUPPORT (M876)
+    cap_line(PSTR("PROMPT_SUPPORT")
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        , true
+      #endif
+    );
+
     // AUTOREPORT_SD_STATUS (M27 extension)
     cap_line(PSTR("AUTOREPORT_SD_STATUS")
       #if ENABLED(AUTO_REPORT_SD_STATUS)

Marlin/src/gcode/host/M876.cpp

@@ -0,0 +1,37 @@
+/**
+ * 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 "../../inc/MarlinConfig.h"
+
+#if ENABLED(HOST_PROMPT_SUPPORT) && DISABLED(EMERGENCY_PARSER)
+
+#include "../../feature/host_actions.h"
+#include "../gcode.h"
+#include "../../Marlin.h"
+
+/**
+ * M876: Handle Prompt Response
+ */
+void GcodeSuite::M876() {
+  if (parser.seenval('S')) host_response_handler((uint8_t)parser.value_int());
+}
+
+#endif // HOST_PROMPT_SUPPORT && !EMERGENCY_PARSER

Marlin/src/gcode/lcd/M0_M1.cpp

@@ -37,6 +37,10 @@
   #include "../../feature/leds/printer_event_leds.h"
 #endif
 
+#if ENABLED(HOST_PROMPT_SUPPORT)
+  #include "../../feature/host_actions.h"
+#endif
+
 /**
  * M0: Unconditional stop - Wait for user button press on LCD
  * M1: Conditional stop   - Wait for user button press on LCD
@@ -82,6 +86,10 @@ void GcodeSuite::M0_M1() {
   KEEPALIVE_STATE(PAUSED_FOR_USER);
   wait_for_user = true;
 
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    host_prompt_do(PROMPT_USER_CONTINUE, PSTR("M0/1 Break Called"), PSTR("Continue"));
+  #endif
+
   if (ms > 0) {
     ms += millis();  // wait until this time for a click
     while (PENDING(millis(), ms) && wait_for_user) idle();

Marlin/src/gcode/sdcard/M20-M30_M32-M34_M524_M928.cpp

@@ -42,6 +42,10 @@
   #include "../queue.h"
 #endif
 
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #include "../../feature/host_actions.h"
+#endif
+
 /**
  * M20: List SD card to serial output
  */
@@ -103,9 +107,14 @@ void GcodeSuite::M24() {
     print_job_timer.start();
   }
 
+  #if ENABLED(HOST_ACTION_COMMANDS)
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_open(PROMPT_INFO, PSTR("Resume SD"));
+    #endif
     #ifdef ACTION_ON_RESUME
       host_action_resume();
     #endif
+  #endif
 
   ui.reset_status();
 }
@@ -121,15 +130,24 @@ void GcodeSuite::M25() {
   #endif
 
   #if ENABLED(PARK_HEAD_ON_PAUSE)
+
     M125();
+
   #else
+
     print_job_timer.pause();
     ui.reset_status();
 
+    #if ENABLED(HOST_ACTION_COMMANDS)
+      #if ENABLED(HOST_PROMPT_SUPPORT)
+        host_prompt_open(PROMPT_PAUSE_RESUME, PSTR("Pause SD"), PSTR("Resume"));
+      #endif
       #ifdef ACTION_ON_PAUSE
         host_action_pause();
       #endif
     #endif
+
+  #endif
 }
 
 /**

Marlin/src/inc/Conditionals_LCD.h

@@ -536,8 +536,6 @@
 #define IS_KINEMATIC (ENABLED(DELTA) || IS_SCARA)
 #define IS_CARTESIAN !IS_KINEMATIC
 
-#define HAS_ACTION_COMMANDS (defined(ACTION_ON_KILL) || defined(ACTION_ON_PAUSE) || defined(ACTION_ON_PAUSED) || defined(ACTION_ON_RESUME) || defined(ACTION_ON_RESUMED) || defined(ACTION_ON_CANCEL) || defined(G29_ACTION_ON_RECOVER) || defined(G29_ACTION_ON_FAILURE) || defined(ACTION_ON_FILAMENT_RUNOUT))
-
 #ifndef INVERT_X_DIR
   #define INVERT_X_DIR false
 #endif
@@ -550,3 +548,29 @@
 #ifndef INVERT_E_DIR
   #define INVERT_E_DIR false
 #endif
+
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #ifndef ACTION_ON_PAUSE
+    #define ACTION_ON_PAUSE   "pause"
+  #endif
+  #ifndef ACTION_ON_RESUME
+    #define ACTION_ON_RESUME  "resume"
+  #endif
+  #ifndef ACTION_ON_PAUSED
+    #define ACTION_ON_PAUSED  "paused"
+  #endif
+  #ifndef ACTION_ON_RESUMED
+    #define ACTION_ON_RESUMED "resumed"
+  #endif
+  #ifndef ACTION_ON_CANCEL
+    #define ACTION_ON_CANCEL  "cancel"
+  #endif
+  #if ENABLED(G29_RETRY_AND_RECOVER)
+    #ifndef ACTION_ON_G29_RECOVER
+      #define ACTION_ON_G29_RECOVER "probe_rewipe"
+    #endif
+    #ifndef ACTION_ON_G29_FAILURE
+      #define ACTION_ON_G29_FAILURE "probe_failed"
+    #endif
+  #endif
+#endif

Marlin/src/inc/Conditionals_adv.h

@@ -42,3 +42,40 @@
   // SERIAL_XON_XOFF not supported on USB-native devices
   #undef SERIAL_XON_XOFF
 #endif
+
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #ifndef ACTION_ON_PAUSE
+    #define ACTION_ON_PAUSE   "pause"
+  #endif
+  #ifndef ACTION_ON_PAUSED
+    #define ACTION_ON_PAUSED  "paused"
+  #endif
+  #ifndef ACTION_ON_RESUME
+    #define ACTION_ON_RESUME  "resume"
+  #endif
+  #ifndef ACTION_ON_RESUMED
+    #define ACTION_ON_RESUMED "resumed"
+  #endif
+  #ifndef ACTION_ON_CANCEL
+    #define ACTION_ON_CANCEL  "cancel"
+  #endif
+  #ifndef ACTION_ON_KILL
+    #define ACTION_ON_KILL    "poweroff"
+  #endif
+  #if ENABLED(FILAMENT_RUNOUT_SENSOR)
+    #ifndef ACTION_ON_FILAMENT_RUNOUT
+      #define ACTION_ON_FILAMENT_RUNOUT "filament_runout"
+    #endif
+    #ifndef ACTION_REASON_ON_FILAMENT_RUNOUT
+      #define ACTION_REASON_ON_FILAMENT_RUNOUT "filament_runout"
+    #endif
+  #endif
+  #if ENABLED(G29_RETRY_AND_RECOVER)
+    #ifndef ACTION_ON_G29_RECOVER
+      #define ACTION_ON_G29_RECOVER "probe_rewipe"
+    #endif
+    #ifndef ACTION_ON_G29_FAILURE
+      #define ACTION_ON_G29_FAILURE "probe_failed"
+    #endif
+  #endif
+#endif

Marlin/src/lcd/extensible_ui/ui_api.cpp

@@ -58,9 +58,12 @@
   #include "../../module/tool_change.h"
 #endif
 
+#if ENABLED(EMERGENCY_PARSER)
+  #include "../../feature/emergency_parser.h"
+#endif
+
 #if ENABLED(SDSUPPORT)
   #include "../../sd/cardreader.h"
-  #include "../../feature/emergency_parser.h"
   #define IFSD(A,B) (A)
 #else
   #define IFSD(A,B) (B)

Marlin/src/lcd/menu/menu.cpp

@@ -28,6 +28,7 @@
 #include "../ultralcd.h"
 #include "../../module/planner.h"
 #include "../../module/motion.h"
+#include "../../module/printcounter.h"
 #include "../../gcode/queue.h"
 #include "../../sd/cardreader.h"
 #include "../../libs/buzzer.h"
@@ -189,7 +190,9 @@ void MenuItem_bool::action_edit(PGM_P pstr, bool *ptr, screenFunc_t callback) {
   void _lcd_set_z_fade_height() { set_z_fade_height(lcd_z_fade_height); }
 #endif
 
-bool printer_busy() { return planner.movesplanned() || IS_SD_PRINTING(); }
+bool printer_busy() {
+  return planner.movesplanned() || IS_SD_PRINTING() || print_job_timer.isRunning();
+}
 
 /**
  * General function to go directly to a screen

Marlin/src/lcd/menu/menu_delta_calibrate.cpp

@@ -52,6 +52,9 @@ void _man_probe_pt(const float &rx, const float &ry) {
     KEEPALIVE_STATE(PAUSED_FOR_USER);
     ui.defer_status_screen(true);
     wait_for_user = true;
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Delta Calibration in progress"), PSTR("Continue"));
+    #endif
     while (wait_for_user) idle();
     KEEPALIVE_STATE(IN_HANDLER);
     ui.goto_previous_screen_no_defer();

Marlin/src/lcd/menu/menu_main.cpp

@@ -42,11 +42,19 @@
   #include "../../sd/cardreader.h"
 #endif
 
+#if ENABLED(HOST_ACTION_COMMANDS)
+  #include "../../feature/host_actions.h"
+#endif
+
 void lcd_pause() {
   #if ENABLED(POWER_LOSS_RECOVERY)
     if (recovery.enabled) recovery.save(true, false);
   #endif
 
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    host_prompt_open(PROMPT_PAUSE_RESUME, PSTR("UI Pause"), PSTR("Resume"));
+  #endif
+
   #if ENABLED(PARK_HEAD_ON_PAUSE)
     lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INIT, ADVANCED_PAUSE_MODE_PAUSE_PRINT);  // Show message immediately to let user know about pause in progress
     enqueue_and_echo_commands_P(PSTR("M25 P\nM24"));
@@ -75,6 +83,9 @@ void lcd_stop() {
   #ifdef ACTION_ON_CANCEL
     host_action_cancel();
   #endif
+  #if ENABLED(HOST_PROMPT_SUPPORT)
+    host_prompt_open(PROMPT_INFO, PSTR("UI Abort"));
+  #endif
   ui.set_status_P(PSTR(MSG_PRINT_ABORTED), -1);
   ui.return_to_status();
 }
@@ -147,9 +158,9 @@ void menu_main() {
       }
     #endif // !HAS_ENCODER_WHEEL && SDSUPPORT
 
-    #if ENABLED(SDSUPPORT) || defined(ACTION_ON_RESUME)
+    #if ENABLED(SDSUPPORT) || ENABLED(HOST_ACTION_COMMANDS)
-      #if ENABLED(SDSUPPORT)
+      #if DISABLED(HOST_ACTION_COMMANDS)
-        if (card.isFileOpen() && card.isPaused())
+        if (card_open && card.isPaused())
       #endif
           MENU_ITEM(function, MSG_RESUME_PRINT, lcd_resume);
     #endif

Marlin/src/module/probe.cpp

@@ -364,6 +364,9 @@ FORCE_INLINE void probe_specific_action(const bool deploy) {
 
     KEEPALIVE_STATE(PAUSED_FOR_USER);
     wait_for_user = true;
+    #if ENABLED(HOST_PROMPT_SUPPORT)
+      host_prompt_do(PROMPT_USER_CONTINUE, PSTR("Stow Probe"), PSTR("Continue"));
+    #endif
     while (wait_for_user) idle();
     ui.reset_status();
     KEEPALIVE_STATE(IN_HANDLER);

buildroot/share/tests/teensy35_tests

@@ -25,7 +25,7 @@ opt_enable REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER SDSUPPORT \
            BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET BABYSTEP_ZPROBE_GFX_OVERLAY \
            PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE SLOW_PWM_HEATERS PIDTEMPBED EEPROM_SETTINGS INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT M100_FREE_MEMORY_WATCHER \
            ADVANCED_PAUSE_FEATURE LCD_INFO_MENU ARC_SUPPORT BEZIER_CURVE_SUPPORT EXPERIMENTAL_I2CBUS EXTENDED_CAPABILITIES_REPORT AUTO_REPORT_TEMPERATURES SDCARD_SORT_ALPHA PARK_HEAD_ON_PAUSE \
-           ACTION_ON_KILL ACTION_ON_PAUSE ACTION_ON_PAUSED ACTION_ON_RESUME ACTION_ON_RESUMED ACTION_ON_CANCEL
+           HOST_ACTION_COMMANDS HOST_PROMPT_SUPPORT
 opt_set I2C_SLAVE_ADDRESS 63
 opt_set GRID_MAX_POINTS_X 16
 exec_test $1 $2 "Teensy3.5 with many features"