Filament Runout Inverting => State (#18537)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/Configuration.h

 //#define FILAMENT_RUNOUT_SENSOR
 #if ENABLED(FILAMENT_RUNOUT_SENSOR)
   #define NUM_RUNOUT_SENSORS   1     // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
-  #define FIL_RUNOUT_INVERTING false // Set to true to invert the logic of the sensor.
+  #define FIL_RUNOUT_STATE     LOW   // Pin state indicating that filament is NOT present.
   #define FIL_RUNOUT_PULLUP          // Use internal pullup for filament runout pins.
   //#define FIL_RUNOUT_PULLDOWN      // Use internal pulldown for filament runout pins.
 

Marlin/src/feature/mmu2/mmu2.cpp

 }
 
 #if EITHER(PRUSA_MMU2_S_MODE, MMU_EXTRUDER_SENSOR)
-  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_INVERTING)
+  #define FILAMENT_PRESENT() (READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_STATE)
 #endif
 
 void MMU2::mmu_loop() {

Marlin/src/feature/runout.h

 
     // Return a bitmask of runout flag states (1 bits always indicates runout)
     static inline uint8_t poll_runout_states() {
-      return poll_runout_pins() ^ uint8_t(TERN(FIL_RUNOUT_INVERTING, 0, _BV(NUM_RUNOUT_SENSORS) - 1));
+      return poll_runout_pins() ^ uint8_t(TERN(FIL_RUNOUT_STATE, 0, _BV(NUM_RUNOUT_SENSORS) - 1));
     }
 };
 

Marlin/src/gcode/feature/pause/M600.cpp

                               // In this case, for duplicating modes set DXC_ext to the extruder that ran out.
       #if HAS_FILAMENT_SENSOR && NUM_RUNOUT_SENSORS > 1
         if (dxc_is_duplicating())
-          DXC_ext = (READ(FIL_RUNOUT2_PIN) == FIL_RUNOUT_INVERTING) ? 1 : 0;
+          DXC_ext = (READ(FIL_RUNOUT2_PIN) == FIL_RUNOUT_STATE) ? 1 : 0;
       #else
         DXC_ext = active_extruder;
       #endif

Marlin/src/inc/SanityCheck.h

   #error "DIGIPOT_I2C is now DIGIPOT_MCP4451 (or DIGIPOT_MCP4018). Please update Configuration_adv.h."
 #endif
 
+#ifdef FIL_RUNOUT_INVERTING
+  #if FIL_RUNOUT_INVERTING
+    #warning "FIL_RUNOUT_INVERTING true is now FIL_RUNOUT_STATE HIGH. Please update Configuration.h."
+  #else
+    #warning "FIL_RUNOUT_INVERTING false is now FIL_RUNOUT_STATE LOW. Please update Configuration.h."
+  #endif
+  #ifndef FIL_RUNOUT_STATE
+    #define FIL_RUNOUT_STATE ((FIL_RUNOUT_INVERTING) ? HIGH : LOW)
+  #endif
+#endif
+
 /**
  * Probe temp compensation requirements
  */

Marlin/src/lcd/extui/lib/ftdi_eve_touch_ui/screens/endstop_state_screen.cpp

     PIN_DISABLED(5, 3, PSTR(STR_Z_MIN), Z_MIN)
   #endif
   #if ENABLED(FILAMENT_RUNOUT_SENSOR) && PIN_EXISTS(FIL_RUNOUT)
-    PIN_ENABLED (1, 4, GET_TEXT_F(MSG_RUNOUT_1), FIL_RUNOUT, FIL_RUNOUT_INVERTING)
+    PIN_ENABLED (1, 4, GET_TEXT_F(MSG_RUNOUT_1), FIL_RUNOUT, FIL_RUNOUT_STATE)
   #else
     PIN_DISABLED(1, 4, GET_TEXT_F(MSG_RUNOUT_1), FIL_RUNOUT)
   #endif
   #if ENABLED(FILAMENT_RUNOUT_SENSOR) && PIN_EXISTS(FIL_RUNOUT2) && EXTRUDERS > 1
-    PIN_ENABLED (3, 4, GET_TEXT_F(MSG_RUNOUT_2), FIL_RUNOUT2, FIL_RUNOUT_INVERTING)
+    PIN_ENABLED (3, 4, GET_TEXT_F(MSG_RUNOUT_2), FIL_RUNOUT2, FIL_RUNOUT_STATE)
   #else
     PIN_DISABLED(3, 4, GET_TEXT_F(MSG_RUNOUT_2), FIL_RUNOUT2)
   #endif

Marlin/src/module/endstops.cpp

   #endif
   #if HAS_FILAMENT_SENSOR
     #if NUM_RUNOUT_SENSORS == 1
-      print_es_state(READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_INVERTING, PSTR(STR_FILAMENT_RUNOUT_SENSOR));
+      print_es_state(READ(FIL_RUNOUT_PIN) != FIL_RUNOUT_STATE, PSTR(STR_FILAMENT_RUNOUT_SENSOR));
     #else
       #define _CASE_RUNOUT(N) case N: pin = FIL_RUNOUT##N##_PIN; break;
       LOOP_S_LE_N(i, 1, NUM_RUNOUT_SENSORS) {
         }
         SERIAL_ECHOPGM(STR_FILAMENT_RUNOUT_SENSOR);
         if (i > 1) SERIAL_CHAR(' ', '0' + i);
-        print_es_state(extDigitalRead(pin) != FIL_RUNOUT_INVERTING);
+        print_es_state(extDigitalRead(pin) != FIL_RUNOUT_STATE);
       }
       #undef _CASE_RUNOUT
     #endif