From 09a2bee8aaafb8b5a4aa45398e55f0689254f9d6 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date: Mon, 17 Sep 2018 03:27:13 -0500
Subject: [PATCH] Support more filament runout sensors in M119 (#11851)

---
 Marlin/src/core/language.h       | 32 ++++++++---------
 Marlin/src/module/endstops.cpp   | 62 +++++++++++++++++++++++++++-----
 Marlin/src/pins/pinsDebug_list.h | 15 ++++++++
 3 files changed, 84 insertions(+), 25 deletions(-)

diff --git a/Marlin/src/core/language.h b/Marlin/src/core/language.h
index 67f28c598d..31b7874d4b 100644
--- a/Marlin/src/core/language.h
+++ b/Marlin/src/core/language.h
@@ -139,25 +139,25 @@
 #define MSG_RESEND                          "Resend: "
 #define MSG_UNKNOWN_COMMAND                 "Unknown command: \""
 #define MSG_ACTIVE_EXTRUDER                 "Active Extruder: "
-#define MSG_X_MIN                           "x_min: "
-#define MSG_X_MAX                           "x_max: "
-#define MSG_X2_MIN                          "x2_min: "
-#define MSG_X2_MAX                          "x2_max: "
-#define MSG_Y_MIN                           "y_min: "
-#define MSG_Y_MAX                           "y_max: "
-#define MSG_Y2_MIN                          "y2_min: "
-#define MSG_Y2_MAX                          "y2_max: "
-#define MSG_Z_MIN                           "z_min: "
-#define MSG_Z_MAX                           "z_max: "
-#define MSG_Z2_MIN                          "z2_min: "
-#define MSG_Z2_MAX                          "z2_max: "
-#define MSG_Z3_MIN                          "z3_min: "
-#define MSG_Z3_MAX                          "z3_max: "
-#define MSG_Z_PROBE                         "z_probe: "
+#define MSG_X_MIN                           "x_min"
+#define MSG_X_MAX                           "x_max"
+#define MSG_X2_MIN                          "x2_min"
+#define MSG_X2_MAX                          "x2_max"
+#define MSG_Y_MIN                           "y_min"
+#define MSG_Y_MAX                           "y_max"
+#define MSG_Y2_MIN                          "y2_min"
+#define MSG_Y2_MAX                          "y2_max"
+#define MSG_Z_MIN                           "z_min"
+#define MSG_Z_MAX                           "z_max"
+#define MSG_Z2_MIN                          "z2_min"
+#define MSG_Z2_MAX                          "z2_max"
+#define MSG_Z3_MIN                          "z3_min"
+#define MSG_Z3_MAX                          "z3_max"
+#define MSG_Z_PROBE                         "z_probe"
+#define MSG_FILAMENT_RUNOUT_SENSOR          "filament"
 #define MSG_PROBE_Z_OFFSET                  "Probe Z Offset"
 #define MSG_SKEW_MIN                        "min_skew_factor: "
 #define MSG_SKEW_MAX                        "max_skew_factor: "
-#define MSG_FILAMENT_RUNOUT_SENSOR          "filament: "
 #define MSG_ERR_MATERIAL_INDEX              "M145 S<index> out of range (0-1)"
 #define MSG_ERR_M355_NONE                   "No case light"
 #define MSG_ERR_M421_PARAMETERS             "M421 incorrect parameter usage"
diff --git a/Marlin/src/module/endstops.cpp b/Marlin/src/module/endstops.cpp
index 7b76ea3b30..6801c27098 100644
--- a/Marlin/src/module/endstops.cpp
+++ b/Marlin/src/module/endstops.cpp
@@ -358,12 +358,16 @@ void Endstops::event_handler() {
   prev_hit_state = hit_state;
 } // Endstops::report_state
 
-void Endstops::M119() {
+static void print_es_state(const bool is_hit, const char * const label=NULL) {
+  if (label) serialprintPGM(label);
+  SERIAL_PROTOCOLPGM(": ");
+  serialprintPGM(is_hit ? PSTR(MSG_ENDSTOP_HIT) : PSTR(MSG_ENDSTOP_OPEN));
+  SERIAL_EOL();
+}
+
+void _O2 Endstops::M119() {
   SERIAL_PROTOCOLLNPGM(MSG_M119_REPORT);
-  #define ES_REPORT(AXIS) do{ \
-    SERIAL_PROTOCOLPGM(MSG_##AXIS); \
-    SERIAL_PROTOCOLLN(((READ(AXIS##_PIN)^AXIS##_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); \
-  }while(0)
+  #define ES_REPORT(S) print_es_state(READ(S##_PIN) == S##_ENDSTOP_INVERTING, PSTR(MSG_##S))
   #if HAS_X_MIN
     ES_REPORT(X_MIN);
   #endif
@@ -407,12 +411,52 @@ void Endstops::M119() {
     ES_REPORT(Z3_MAX);
   #endif
   #if ENABLED(Z_MIN_PROBE_ENDSTOP)
-    SERIAL_PROTOCOLPGM(MSG_Z_PROBE);
-    SERIAL_PROTOCOLLN(((READ(Z_MIN_PROBE_PIN)^Z_MIN_PROBE_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN));
+    print_es_state(READ(Z_MIN_PROBE_PIN) == Z_MIN_PROBE_ENDSTOP_INVERTING, PSTR(MSG_Z_PROBE));
   #endif
   #if ENABLED(FILAMENT_RUNOUT_SENSOR)
-    SERIAL_PROTOCOLPGM(MSG_FILAMENT_RUNOUT_SENSOR);
-    SERIAL_PROTOCOLLN(((READ(FIL_RUNOUT_PIN)^FIL_RUNOUT_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN));
+    #define FRS_COUNT (1 + PIN_EXISTS(FIL_RUNOUT2) + PIN_EXISTS(FIL_RUNOUT3) + PIN_EXISTS(FIL_RUNOUT4) + PIN_EXISTS(FIL_RUNOUT5) + PIN_EXISTS(FIL_RUNOUT6))
+    #if FRS_COUNT == 1
+      print_es_state(READ(FIL_RUNOUT_PIN) == FIL_RUNOUT_INVERTING, MSG_FILAMENT_RUNOUT_SENSOR);
+    #else
+      for (uint8_t i = 1; i <=
+        #if   FRS_COUNT == 6
+          6
+        #elif FRS_COUNT == 5
+          5
+        #elif FRS_COUNT == 4
+          4
+        #elif FRS_COUNT == 3
+          3
+        #elif FRS_COUNT == 2
+          2
+        #endif
+        ; i++
+      ) {
+        pin_t pin;
+        switch (i) {
+          default: continue;
+          case 1: pin = FIL_RUNOUT_PIN; break;
+          #if PIN_EXISTS(FIL_RUNOUT2)
+            case 2: pin = FIL_RUNOUT2_PIN; break;
+          #endif
+          #if PIN_EXISTS(FIL_RUNOUT3)
+            case 3: pin = FIL_RUNOUT3_PIN; break;
+          #endif
+          #if PIN_EXISTS(FIL_RUNOUT4)
+            case 4: pin = FIL_RUNOUT4_PIN; break;
+          #endif
+          #if PIN_EXISTS(FIL_RUNOUT5)
+            case 5: pin = FIL_RUNOUT5_PIN; break;
+          #endif
+          #if PIN_EXISTS(FIL_RUNOUT6)
+            case 6: pin = FIL_RUNOUT6_PIN; break;
+          #endif
+        }
+        SERIAL_PROTOCOLPGM(MSG_FILAMENT_RUNOUT_SENSOR);
+        if (i > 1) { SERIAL_CHAR(' '); SERIAL_CHAR('0' + i); }
+        print_es_state(digitalRead(pin) == FIL_RUNOUT_INVERTING);
+      }
+    #endif
   #endif
 } // Endstops::M119
 
diff --git a/Marlin/src/pins/pinsDebug_list.h b/Marlin/src/pins/pinsDebug_list.h
index ab18338616..e6ac174c17 100644
--- a/Marlin/src/pins/pinsDebug_list.h
+++ b/Marlin/src/pins/pinsDebug_list.h
@@ -467,6 +467,21 @@
 #if PIN_EXISTS(FIL_RUNOUT)
   REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT_PIN)
 #endif
+#if PIN_EXISTS(FIL_RUNOUT2)
+  REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT2_PIN)
+#endif
+#if PIN_EXISTS(FIL_RUNOUT3)
+  REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT3_PIN)
+#endif
+#if PIN_EXISTS(FIL_RUNOUT4)
+  REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT4_PIN)
+#endif
+#if PIN_EXISTS(FIL_RUNOUT5)
+  REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT5_PIN)
+#endif
+#if PIN_EXISTS(FIL_RUNOUT6)
+  REPORT_NAME_DIGITAL(__LINE__, FIL_RUNOUT6_PIN)
+#endif
 #if PIN_EXISTS(HEATER_0)
   REPORT_NAME_DIGITAL(__LINE__, HEATER_0_PIN)
 #endif