Fix up, improve endstop pin auto-assignment

Followup for #16723
4 years ago · 62f52ebb3a
3 changed files with 43 additions and 28 deletions
--- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h
+++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h
@ -36,11 +36,10 @@
 * Limit Switches
 */
 #if X_STALL_SENSITIVITY
+  #define X_STOP_PIN         X_DIAG_PIN
  #if X_HOME_DIR < 0
-    #define X_MIN_PIN        X_DIAG_PIN
    #define X_MAX_PIN        P1_28   // X+
  #else
-    #define X_MAX_PIN        X_DIAG_PIN
    #define X_MIN_PIN        P1_28   // X+
  #endif
 #else
@ -49,11 +48,10 @@
 #endif

 #if Y_STALL_SENSITIVITY
+  #define Y_STOP_PIN         Y_DIAG_PIN
  #if Y_HOME_DIR < 0
-    #define Y_MIN_PIN        Y_DIAG_PIN
    #define Y_MAX_PIN        P1_26   // Y+
  #else
-    #define Y_MAX_PIN        Y_DIAG_PIN
    #define Y_MIN_PIN        P1_26   // Y+
  #endif
 #else
@ -62,11 +60,10 @@
 #endif

 #if Z_STALL_SENSITIVITY
+  #define Z_STOP_PIN         Z_DIAG_PIN
  #if Z_HOME_DIR < 0
-    #define Z_MIN_PIN        Z_DIAG_PIN
    #define Z_MAX_PIN        P1_24   // Z+
  #else
-    #define Z_MAX_PIN        Z_DIAG_PIN
    #define Z_MIN_PIN        P1_24   // Z+
  #endif
 #else
@ -184,9 +181,6 @@
  #define E1_SERIAL_TX_PIN P1_04
  #define E1_SERIAL_RX_PIN P1_01

-  #define Z2_SERIAL_TX_PIN P1_04
-  #define Z2_SERIAL_RX_PIN P1_01
-
  // Reduce baud rate to improve software serial reliability
  #define TMC_BAUD_RATE 19200
 #endif
--- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
+++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
@ -50,11 +50,10 @@
 // Limit Switches
 //
 #if X_STALL_SENSITIVITY
+  #define X_STOP_PIN       X_DIAG_PIN
  #if X_HOME_DIR < 0
-    #define X_MIN_PIN      X_DIAG_PIN
    #define X_MAX_PIN      P1_26   // E0DET
  #else
-    #define X_MAX_PIN      X_DIAG_PIN
    #define X_MIN_PIN      P1_26   // E0DET
  #endif
 #else
@ -62,11 +61,10 @@
 #endif

 #if Y_STALL_SENSITIVITY
+  #define Y_STOP_PIN       Y_DIAG_PIN
  #if Y_HOME_DIR < 0
-    #define Y_MIN_PIN      Y_DIAG_PIN
    #define Y_MAX_PIN      P1_25   // E1DET
  #else
-    #define Y_MAX_PIN      Y_DIAG_PIN
    #define Y_MIN_PIN      P1_25   // E1DET
  #endif
 #else
@ -74,11 +72,10 @@
 #endif

 #if Z_STALL_SENSITIVITY
+  #define Z_STOP_PIN       Z_DIAG_PIN
  #if Z_HOME_DIR < 0
-    #define Z_MIN_PIN      Z_DIAG_PIN
    #define Z_MAX_PIN      P1_24   // PWRDET
  #else
-    #define Z_MAX_PIN      Z_DIAG_PIN
    #define Z_MIN_PIN      P1_24   // PWRDET
  #endif
 #else
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@ -1026,10 +1026,14 @@
 #ifdef X_STOP_PIN
  #if X_HOME_DIR < 0
    #define X_MIN_PIN X_STOP_PIN
-    #define X_MAX_PIN -1
+    #ifndef X_MAX_PIN
+      #define X_MAX_PIN -1
+    #endif
  #else
-    #define X_MIN_PIN -1
    #define X_MAX_PIN X_STOP_PIN
+    #ifndef X_MIN_PIN
+      #define X_MIN_PIN -1
+    #endif
  #endif
 #elif X_HOME_DIR < 0
  #define X_STOP_PIN X_MIN_PIN
@ -1040,10 +1044,14 @@
 #ifdef Y_STOP_PIN
  #if Y_HOME_DIR < 0
    #define Y_MIN_PIN Y_STOP_PIN
-    #define Y_MAX_PIN -1
+    #ifndef Y_MAX_PIN
+      #define Y_MAX_PIN -1
+    #endif
  #else
-    #define Y_MIN_PIN -1
    #define Y_MAX_PIN Y_STOP_PIN
+    #ifndef Y_MIN_PIN
+      #define Y_MIN_PIN -1
+    #endif
  #endif
 #elif Y_HOME_DIR < 0
  #define Y_STOP_PIN Y_MIN_PIN
@ -1054,10 +1062,14 @@
 #ifdef Z_STOP_PIN
  #if Z_HOME_DIR < 0
    #define Z_MIN_PIN Z_STOP_PIN
-    #define Z_MAX_PIN -1
+    #ifndef Z_MAX_PIN
+      #define Z_MAX_PIN -1
+    #endif
  #else
-    #define Z_MIN_PIN -1
    #define Z_MAX_PIN Z_STOP_PIN
+    #ifndef Z_MIN_PIN
+      #define Z_MIN_PIN -1
+    #endif
  #endif
 #elif Z_HOME_DIR < 0
  #define Z_STOP_PIN Z_MIN_PIN
@ -1127,9 +1139,11 @@
 * overridden in Configuration.h or Configuration_adv.h.
 */

+#define __PEXI(p,q) PIN_EXISTS(E##p##_##q)
+#define _PEXI(p,q) __PEXI(p,q)
 #define __EPIN(p,q) E##p##_##q##_PIN
 #define _EPIN(p,q) __EPIN(p,q)
-#define DIAG_REMAPPED(P,Q) (PIN_EXISTS(Q) && (P##_DIAG_PIN == Q##_PIN))
+#define DIAG_REMAPPED(p,q) (PIN_EXISTS(q) && _EPIN(p##_E_INDEX, DIAG) == q##_PIN)

 // The X2 axis, if any, should be the next open extruder port
 #define X2_E_INDEX E_STEPPERS
@ -1167,7 +1181,8 @@
  //
  // Auto-assign pins for stallGuard sensorless homing
  //
-  #if X2_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _EPIN(X2_E_INDEX, DIAG) > 0
+  #if X2_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _PEXI(X2_E_INDEX, DIAG)
+    #define X2_DIAG_PIN _EPIN(X2_E_INDEX, DIAG)
    #if   DIAG_REMAPPED(X2, X_MIN)      // If already remapped in the pins file...
      #define X2_USE_ENDSTOP _XMIN_
    #elif DIAG_REMAPPED(X2, Y_MIN)
@ -1184,6 +1199,7 @@
      #define _X2_USE_ENDSTOP(P) _E##P##_DIAG_
      #define X2_USE_ENDSTOP _X2_USE_ENDSTOP(X2_E_INDEX)
    #endif
+    #undef X2_DIAG_PIN
  #endif

  #define Y2_E_INDEX INCREMENT(X2_E_INDEX)
@ -1234,7 +1250,8 @@
      #define Y2_SERIAL_RX_PIN _EPIN(Y2_E_INDEX, SERIAL_RX)
    #endif
  #endif
-  #if Y2_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _EPIN(Y2_E_INDEX, DIAG) > 0
+  #if Y2_STALL_SENSITIVITY && ENABLED(Y_DUAL_ENDSTOPS) && _PEXI(Y2_E_INDEX, DIAG)
+    #define Y2_DIAG_PIN _EPIN(Y2_E_INDEX, DIAG)
    #if   DIAG_REMAPPED(Y2, X_MIN)
      #define Y2_USE_ENDSTOP _XMIN_
    #elif DIAG_REMAPPED(Y2, Y_MIN)
@ -1251,6 +1268,7 @@
      #define _Y2_USE_ENDSTOP(P) _E##P##_DIAG_
      #define Y2_USE_ENDSTOP _Y2_USE_ENDSTOP(Y2_E_INDEX)
    #endif
+    #undef Y2_DIAG_PIN
  #endif
  #define Z2_E_INDEX INCREMENT(Y2_E_INDEX)
 #else
@ -1300,7 +1318,8 @@
      #define Z2_SERIAL_RX_PIN _EPIN(Z2_E_INDEX, SERIAL_RX)
    #endif
  #endif
-  #if Z2_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _EPIN(Z2_E_INDEX, DIAG) > 0
+  #if Z2_STALL_SENSITIVITY && ENABLED(Z_MULTI_ENDSTOPS) && NUM_Z_STEPPER_DRIVERS >= 2 && _PEXI(Z2_E_INDEX, DIAG)
+    #define Z2_DIAG_PIN _EPIN(Z2_E_INDEX, DIAG)
    #if   DIAG_REMAPPED(Z2, X_MIN)
      #define Z2_USE_ENDSTOP _XMIN_
    #elif DIAG_REMAPPED(Z2, Y_MIN)
@ -1317,6 +1336,7 @@
      #define _Z2_USE_ENDSTOP(P) _E##P##_DIAG_
      #define Z2_USE_ENDSTOP _Z2_USE_ENDSTOP(Z2_E_INDEX)
    #endif
+    #undef Z2_DIAG_PIN
  #endif
  #define Z3_E_INDEX INCREMENT(Z2_E_INDEX)
 #else
@ -1367,7 +1387,8 @@
      #define Z3_SERIAL_RX_PIN _EPIN(Z3_E_INDEX, SERIAL_RX)
    #endif
  #endif
-  #if Z3_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _EPIN(Z3_E_INDEX, DIAG) > 0
+  #if Z3_STALL_SENSITIVITY && ENABLED(Z_MULTI_ENDSTOPS) && NUM_Z_STEPPER_DRIVERS >= 3 && _PEXI(Z3_E_INDEX, DIAG)
+    #define Z3_DIAG_PIN _EPIN(Z3_E_INDEX, DIAG)
    #if   DIAG_REMAPPED(Z3, X_MIN)
      #define Z3_USE_ENDSTOP _XMIN_
    #elif DIAG_REMAPPED(Z3, Y_MIN)
@ -1382,8 +1403,9 @@
      #define Z3_USE_ENDSTOP _ZMAX_
    #else
      #define _Z3_USE_ENDSTOP(P) _E##P##_DIAG_
-      #define Z3_USE_ENDSTOP _Y2_USE_ENDSTOP(Y2_E_INDEX)
+      #define Z3_USE_ENDSTOP _Z3_USE_ENDSTOP(Z3_E_INDEX)
    #endif
+    #undef Z3_DIAG_PIN
  #endif
  #define Z4_E_INDEX INCREMENT(Z3_E_INDEX)
 #endif
@ -1432,7 +1454,8 @@
      #define Z4_SERIAL_RX_PIN _EPIN(Z4_E_INDEX, SERIAL_RX)
    #endif
  #endif
-  #if Z4_STALL_SENSITIVITY && ENABLED(X_DUAL_ENDSTOPS) && _EPIN(Z4_E_INDEX, DIAG) > 0
+  #if Z4_STALL_SENSITIVITY && ENABLED(Z_MULTI_ENDSTOPS) && NUM_Z_STEPPER_DRIVERS >= 4 && _PEXI(Z4_E_INDEX, DIAG)
+    #define Z4_DIAG_PIN _EPIN(Z4_E_INDEX, DIAG)
    #if   DIAG_REMAPPED(Z4, X_MIN)
      #define Z4_USE_ENDSTOP _XMIN_
    #elif DIAG_REMAPPED(Z4, Y_MIN)
@ -1449,6 +1472,7 @@
      #define _Z4_USE_ENDSTOP(P) _E##P##_DIAG_
      #define Z4_USE_ENDSTOP _Z4_USE_ENDSTOP(Z4_E_INDEX)
    #endif
+    #undef Z4_DIAG_PIN
  #endif
 #endif