marlin/Marlin/src/module/stepper/indirection.h

/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2020 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

/**
 * stepper/indirection.h
 *
 * Stepper motor driver indirection to allow some stepper functions to
 * be done via SPI/I2c instead of direct pin manipulation.
 *
 * Copyright (c) 2015 Dominik Wenger
 */

#include "../../inc/MarlinConfig.h"

#if HAS_L64XX
  #include "L64xx.h"
#endif

#if HAS_DRIVER(TMC26X)
  #include "TMC26X.h"
#endif

#if HAS_TRINAMIC_CONFIG
  #include "trinamic.h"
#endif

void restore_stepper_drivers();  // Called by PSU_ON
void reset_stepper_drivers();    // Called by settings.load / settings.reset

// X Stepper
#ifndef X_ENABLE_INIT
  #define X_ENABLE_INIT() SET_OUTPUT(X_ENABLE_PIN)
  #define X_ENABLE_WRITE(STATE) WRITE(X_ENABLE_PIN,STATE)
  #define X_ENABLE_READ() bool(READ(X_ENABLE_PIN))
#endif
#ifndef X_DIR_INIT
  #define X_DIR_INIT() SET_OUTPUT(X_DIR_PIN)
  #define X_DIR_WRITE(STATE) WRITE(X_DIR_PIN,STATE)
  #define X_DIR_READ() bool(READ(X_DIR_PIN))
#endif
#define X_STEP_INIT() SET_OUTPUT(X_STEP_PIN)
#ifndef X_STEP_WRITE
  #define X_STEP_WRITE(STATE) WRITE(X_STEP_PIN,STATE)
#endif
#define X_STEP_READ() bool(READ(X_STEP_PIN))

// Y Stepper
#ifndef Y_ENABLE_INIT
  #define Y_ENABLE_INIT() SET_OUTPUT(Y_ENABLE_PIN)
  #define Y_ENABLE_WRITE(STATE) WRITE(Y_ENABLE_PIN,STATE)
  #define Y_ENABLE_READ() bool(READ(Y_ENABLE_PIN))
#endif
#ifndef Y_DIR_INIT
  #define Y_DIR_INIT() SET_OUTPUT(Y_DIR_PIN)
  #define Y_DIR_WRITE(STATE) WRITE(Y_DIR_PIN,STATE)
  #define Y_DIR_READ() bool(READ(Y_DIR_PIN))
#endif
#define Y_STEP_INIT() SET_OUTPUT(Y_STEP_PIN)
#ifndef Y_STEP_WRITE
  #define Y_STEP_WRITE(STATE) WRITE(Y_STEP_PIN,STATE)
#endif
#define Y_STEP_READ() bool(READ(Y_STEP_PIN))

// Z Stepper
#ifndef Z_ENABLE_INIT
  #define Z_ENABLE_INIT() SET_OUTPUT(Z_ENABLE_PIN)
  #define Z_ENABLE_WRITE(STATE) WRITE(Z_ENABLE_PIN,STATE)
  #define Z_ENABLE_READ() bool(READ(Z_ENABLE_PIN))
#endif
#ifndef Z_DIR_INIT
  #define Z_DIR_INIT() SET_OUTPUT(Z_DIR_PIN)
  #define Z_DIR_WRITE(STATE) WRITE(Z_DIR_PIN,STATE)
  #define Z_DIR_READ() bool(READ(Z_DIR_PIN))
#endif
#define Z_STEP_INIT() SET_OUTPUT(Z_STEP_PIN)
#ifndef Z_STEP_WRITE
  #define Z_STEP_WRITE(STATE) WRITE(Z_STEP_PIN,STATE)
#endif
#define Z_STEP_READ() bool(READ(Z_STEP_PIN))

// X2 Stepper
#if HAS_X2_ENABLE
  #ifndef X2_ENABLE_INIT
    #define X2_ENABLE_INIT() SET_OUTPUT(X2_ENABLE_PIN)
    #define X2_ENABLE_WRITE(STATE) WRITE(X2_ENABLE_PIN,STATE)
    #define X2_ENABLE_READ() bool(READ(X2_ENABLE_PIN))
  #endif
  #ifndef X2_DIR_INIT
    #define X2_DIR_INIT() SET_OUTPUT(X2_DIR_PIN)
    #define X2_DIR_WRITE(STATE) WRITE(X2_DIR_PIN,STATE)
    #define X2_DIR_READ() bool(READ(X2_DIR_PIN))
  #endif
  #define X2_STEP_INIT() SET_OUTPUT(X2_STEP_PIN)
  #ifndef X2_STEP_WRITE
    #define X2_STEP_WRITE(STATE) WRITE(X2_STEP_PIN,STATE)
  #endif
  #define X2_STEP_READ() bool(READ(X2_STEP_PIN))
#endif

// Y2 Stepper
#if HAS_Y2_ENABLE
  #ifndef Y2_ENABLE_INIT
    #define Y2_ENABLE_INIT() SET_OUTPUT(Y2_ENABLE_PIN)
    #define Y2_ENABLE_WRITE(STATE) WRITE(Y2_ENABLE_PIN,STATE)
    #define Y2_ENABLE_READ() bool(READ(Y2_ENABLE_PIN))
  #endif
  #ifndef Y2_DIR_INIT
    #define Y2_DIR_INIT() SET_OUTPUT(Y2_DIR_PIN)
    #define Y2_DIR_WRITE(STATE) WRITE(Y2_DIR_PIN,STATE)
    #define Y2_DIR_READ() bool(READ(Y2_DIR_PIN))
  #endif
  #define Y2_STEP_INIT() SET_OUTPUT(Y2_STEP_PIN)
  #ifndef Y2_STEP_WRITE
    #define Y2_STEP_WRITE(STATE) WRITE(Y2_STEP_PIN,STATE)
  #endif
  #define Y2_STEP_READ() bool(READ(Y2_STEP_PIN))
#else
  #define Y2_DIR_WRITE(STATE) NOOP
#endif

// Z2 Stepper
#if HAS_Z2_ENABLE
  #ifndef Z2_ENABLE_INIT
    #define Z2_ENABLE_INIT() SET_OUTPUT(Z2_ENABLE_PIN)
    #define Z2_ENABLE_WRITE(STATE) WRITE(Z2_ENABLE_PIN,STATE)
    #define Z2_ENABLE_READ() bool(READ(Z2_ENABLE_PIN))
  #endif
  #ifndef Z2_DIR_INIT
    #define Z2_DIR_INIT() SET_OUTPUT(Z2_DIR_PIN)
    #define Z2_DIR_WRITE(STATE) WRITE(Z2_DIR_PIN,STATE)
    #define Z2_DIR_READ() bool(READ(Z2_DIR_PIN))
  #endif
  #define Z2_STEP_INIT() SET_OUTPUT(Z2_STEP_PIN)
  #ifndef Z2_STEP_WRITE
    #define Z2_STEP_WRITE(STATE) WRITE(Z2_STEP_PIN,STATE)
  #endif
  #define Z2_STEP_READ() bool(READ(Z2_STEP_PIN))
#else
  #define Z2_DIR_WRITE(STATE) NOOP
#endif

// Z3 Stepper
#if HAS_Z3_ENABLE
  #ifndef Z3_ENABLE_INIT
    #define Z3_ENABLE_INIT() SET_OUTPUT(Z3_ENABLE_PIN)
    #define Z3_ENABLE_WRITE(STATE) WRITE(Z3_ENABLE_PIN,STATE)
    #define Z3_ENABLE_READ() bool(READ(Z3_ENABLE_PIN))
  #endif
  #ifndef Z3_DIR_INIT
    #define Z3_DIR_INIT() SET_OUTPUT(Z3_DIR_PIN)
    #define Z3_DIR_WRITE(STATE) WRITE(Z3_DIR_PIN,STATE)
    #define Z3_DIR_READ() bool(READ(Z3_DIR_PIN))
  #endif
  #define Z3_STEP_INIT() SET_OUTPUT(Z3_STEP_PIN)
  #ifndef Z3_STEP_WRITE
    #define Z3_STEP_WRITE(STATE) WRITE(Z3_STEP_PIN,STATE)
  #endif
  #define Z3_STEP_READ() bool(READ(Z3_STEP_PIN))
#else
  #define Z3_DIR_WRITE(STATE) NOOP
#endif

// Z4 Stepper
#if HAS_Z4_ENABLE
  #ifndef Z4_ENABLE_INIT
    #define Z4_ENABLE_INIT() SET_OUTPUT(Z4_ENABLE_PIN)
    #define Z4_ENABLE_WRITE(STATE) WRITE(Z4_ENABLE_PIN,STATE)
    #define Z4_ENABLE_READ() bool(READ(Z4_ENABLE_PIN))
  #endif
  #ifndef Z4_DIR_INIT
    #define Z4_DIR_INIT() SET_OUTPUT(Z4_DIR_PIN)
    #define Z4_DIR_WRITE(STATE) WRITE(Z4_DIR_PIN,STATE)
    #define Z4_DIR_READ() bool(READ(Z4_DIR_PIN))
  #endif
  #define Z4_STEP_INIT() SET_OUTPUT(Z4_STEP_PIN)
  #ifndef Z4_STEP_WRITE
    #define Z4_STEP_WRITE(STATE) WRITE(Z4_STEP_PIN,STATE)
  #endif
  #define Z4_STEP_READ() bool(READ(Z4_STEP_PIN))
#else
  #define Z4_DIR_WRITE(STATE) NOOP
#endif

// E0 Stepper
#ifndef E0_ENABLE_INIT
  #define E0_ENABLE_INIT() SET_OUTPUT(E0_ENABLE_PIN)
  #define E0_ENABLE_WRITE(STATE) WRITE(E0_ENABLE_PIN,STATE)
  #define E0_ENABLE_READ() bool(READ(E0_ENABLE_PIN))
#endif
#ifndef E0_DIR_INIT
  #define E0_DIR_INIT() SET_OUTPUT(E0_DIR_PIN)
  #define E0_DIR_WRITE(STATE) WRITE(E0_DIR_PIN,STATE)
  #define E0_DIR_READ() bool(READ(E0_DIR_PIN))
#endif
#define E0_STEP_INIT() SET_OUTPUT(E0_STEP_PIN)
#ifndef E0_STEP_WRITE
  #define E0_STEP_WRITE(STATE) WRITE(E0_STEP_PIN,STATE)
#endif
#define E0_STEP_READ() bool(READ(E0_STEP_PIN))

// E1 Stepper
#ifndef E1_ENABLE_INIT
  #define E1_ENABLE_INIT() SET_OUTPUT(E1_ENABLE_PIN)
  #define E1_ENABLE_WRITE(STATE) WRITE(E1_ENABLE_PIN,STATE)
  #define E1_ENABLE_READ() bool(READ(E1_ENABLE_PIN))
#endif
#ifndef E1_DIR_INIT
  #define E1_DIR_INIT() SET_OUTPUT(E1_DIR_PIN)
  #define E1_DIR_WRITE(STATE) WRITE(E1_DIR_PIN,STATE)
  #define E1_DIR_READ() bool(READ(E1_DIR_PIN))
#endif
#define E1_STEP_INIT() SET_OUTPUT(E1_STEP_PIN)
#ifndef E1_STEP_WRITE
  #define E1_STEP_WRITE(STATE) WRITE(E1_STEP_PIN,STATE)
#endif
#define E1_STEP_READ() bool(READ(E1_STEP_PIN))

// E2 Stepper
#ifndef E2_ENABLE_INIT
  #define E2_ENABLE_INIT() SET_OUTPUT(E2_ENABLE_PIN)
  #define E2_ENABLE_WRITE(STATE) WRITE(E2_ENABLE_PIN,STATE)
  #define E2_ENABLE_READ() bool(READ(E2_ENABLE_PIN))
#endif
#ifndef E2_DIR_INIT
  #define E2_DIR_INIT() SET_OUTPUT(E2_DIR_PIN)
  #define E2_DIR_WRITE(STATE) WRITE(E2_DIR_PIN,STATE)
  #define E2_DIR_READ() bool(READ(E2_DIR_PIN))
#endif
#define E2_STEP_INIT() SET_OUTPUT(E2_STEP_PIN)
#ifndef E2_STEP_WRITE
  #define E2_STEP_WRITE(STATE) WRITE(E2_STEP_PIN,STATE)
#endif
#define E2_STEP_READ() bool(READ(E2_STEP_PIN))

// E3 Stepper
#ifndef E3_ENABLE_INIT
  #define E3_ENABLE_INIT() SET_OUTPUT(E3_ENABLE_PIN)
  #define E3_ENABLE_WRITE(STATE) WRITE(E3_ENABLE_PIN,STATE)
  #define E3_ENABLE_READ() bool(READ(E3_ENABLE_PIN))
#endif
#ifndef E3_DIR_INIT
  #define E3_DIR_INIT() SET_OUTPUT(E3_DIR_PIN)
  #define E3_DIR_WRITE(STATE) WRITE(E3_DIR_PIN,STATE)
  #define E3_DIR_READ() bool(READ(E3_DIR_PIN))
#endif
#define E3_STEP_INIT() SET_OUTPUT(E3_STEP_PIN)
#ifndef E3_STEP_WRITE
  #define E3_STEP_WRITE(STATE) WRITE(E3_STEP_PIN,STATE)
#endif
#define E3_STEP_READ() bool(READ(E3_STEP_PIN))

// E4 Stepper
#ifndef E4_ENABLE_INIT
  #define E4_ENABLE_INIT() SET_OUTPUT(E4_ENABLE_PIN)
  #define E4_ENABLE_WRITE(STATE) WRITE(E4_ENABLE_PIN,STATE)
  #define E4_ENABLE_READ() bool(READ(E4_ENABLE_PIN))
#endif
#ifndef E4_DIR_INIT
  #define E4_DIR_INIT() SET_OUTPUT(E4_DIR_PIN)
  #define E4_DIR_WRITE(STATE) WRITE(E4_DIR_PIN,STATE)
  #define E4_DIR_READ() bool(READ(E4_DIR_PIN))
#endif
#define E4_STEP_INIT() SET_OUTPUT(E4_STEP_PIN)
#ifndef E4_STEP_WRITE
  #define E4_STEP_WRITE(STATE) WRITE(E4_STEP_PIN,STATE)
#endif
#define E4_STEP_READ() bool(READ(E4_STEP_PIN))

// E5 Stepper
#ifndef E5_ENABLE_INIT
  #define E5_ENABLE_INIT() SET_OUTPUT(E5_ENABLE_PIN)
  #define E5_ENABLE_WRITE(STATE) WRITE(E5_ENABLE_PIN,STATE)
  #define E5_ENABLE_READ() bool(READ(E5_ENABLE_PIN))
#endif
#ifndef E5_DIR_INIT
  #define E5_DIR_INIT() SET_OUTPUT(E5_DIR_PIN)
  #define E5_DIR_WRITE(STATE) WRITE(E5_DIR_PIN,STATE)
  #define E5_DIR_READ() bool(READ(E5_DIR_PIN))
#endif
#define E5_STEP_INIT() SET_OUTPUT(E5_STEP_PIN)
#ifndef E5_STEP_WRITE
  #define E5_STEP_WRITE(STATE) WRITE(E5_STEP_PIN,STATE)
#endif
#define E5_STEP_READ() bool(READ(E5_STEP_PIN))

// E6 Stepper
#ifndef E6_ENABLE_INIT
  #define E6_ENABLE_INIT() SET_OUTPUT(E6_ENABLE_PIN)
  #define E6_ENABLE_WRITE(STATE) WRITE(E6_ENABLE_PIN,STATE)
  #define E6_ENABLE_READ() bool(READ(E6_ENABLE_PIN))
#endif
#ifndef E6_DIR_INIT
  #define E6_DIR_INIT() SET_OUTPUT(E6_DIR_PIN)
  #define E6_DIR_WRITE(STATE) WRITE(E6_DIR_PIN,STATE)
  #define E6_DIR_READ() bool(READ(E6_DIR_PIN))
#endif
#define E6_STEP_INIT() SET_OUTPUT(E6_STEP_PIN)
#ifndef E6_STEP_WRITE
  #define E6_STEP_WRITE(STATE) WRITE(E6_STEP_PIN,STATE)
#endif
#define E6_STEP_READ() bool(READ(E6_STEP_PIN))

// E7 Stepper
#ifndef E7_ENABLE_INIT
  #define E7_ENABLE_INIT() SET_OUTPUT(E7_ENABLE_PIN)
  #define E7_ENABLE_WRITE(STATE) WRITE(E7_ENABLE_PIN,STATE)
  #define E7_ENABLE_READ() bool(READ(E7_ENABLE_PIN))
#endif
#ifndef E7_DIR_INIT
  #define E7_DIR_INIT() SET_OUTPUT(E7_DIR_PIN)
  #define E7_DIR_WRITE(STATE) WRITE(E7_DIR_PIN,STATE)
  #define E7_DIR_READ() bool(READ(E7_DIR_PIN))
#endif
#define E7_STEP_INIT() SET_OUTPUT(E7_STEP_PIN)
#ifndef E7_STEP_WRITE
  #define E7_STEP_WRITE(STATE) WRITE(E7_STEP_PIN,STATE)
#endif
#define E7_STEP_READ() bool(READ(E7_STEP_PIN))

/**
 * Extruder indirection for the single E axis
 */
#if ENABLED(SWITCHING_EXTRUDER) // One stepper driver per two extruders, reversed on odd index
  #if EXTRUDERS > 7
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else if (E < 4) { E1_STEP_WRITE(V); } else if (E < 6) { E2_STEP_WRITE(V); } else { E3_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 3: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 5: E2_DIR_WRITE( INVERT_E2_DIR); break; \
        case 6: E3_DIR_WRITE( INVERT_E3_DIR); break; case 7: E3_DIR_WRITE( INVERT_E3_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; case 3: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE( INVERT_E2_DIR); break; case 5: E2_DIR_WRITE(!INVERT_E2_DIR); break; \
        case 6: E3_DIR_WRITE(!INVERT_E3_DIR); break; case 7: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
      } }while(0)
  #elif EXTRUDERS > 6
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else if (E < 4) { E1_STEP_WRITE(V); } else if (E < 6) { E2_STEP_WRITE(V); } else { E3_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 3: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 5: E2_DIR_WRITE( INVERT_E2_DIR); break; \
        case 6: E3_DIR_WRITE( INVERT_E3_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; case 3: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE( INVERT_E2_DIR); break; case 5: E2_DIR_WRITE(!INVERT_E2_DIR); break; \
        case 6: E3_DIR_WRITE(!INVERT_E3_DIR); } }while(0)
  #elif EXTRUDERS > 5
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else if (E < 4) { E1_STEP_WRITE(V); } else { E2_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 3: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 5: E2_DIR_WRITE( INVERT_E2_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; case 3: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE( INVERT_E2_DIR); break; case 5: E2_DIR_WRITE(!INVERT_E2_DIR); break; \
      } }while(0)
  #elif EXTRUDERS > 4
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else if (E < 4) { E1_STEP_WRITE(V); } else { E2_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 3: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE(!INVERT_E2_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; case 3: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 4: E2_DIR_WRITE( INVERT_E2_DIR); break; \
      } }while(0)
  #elif EXTRUDERS > 3
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else { E1_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 3: E1_DIR_WRITE( INVERT_E1_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; case 3: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
      } }while(0)
  #elif EXTRUDERS > 2
    #define E_STEP_WRITE(E,V) do{ if (E < 2) { E0_STEP_WRITE(V); } else { E1_STEP_WRITE(V); } }while(0)
    #define   NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E0_DIR_WRITE( INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
      } }while(0)
    #define    REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E0_DIR_WRITE(!INVERT_E0_DIR); break; \
        case 2: E1_DIR_WRITE( INVERT_E1_DIR); break; \
      } }while(0)
  #else
    #define E_STEP_WRITE(E,V) E0_STEP_WRITE(V)
    #define   NORM_E_DIR(E)   do{ E0_DIR_WRITE(E ?  INVERT_E0_DIR : !INVERT_E0_DIR); }while(0)
    #define    REV_E_DIR(E)   do{ E0_DIR_WRITE(E ? !INVERT_E0_DIR :  INVERT_E0_DIR); }while(0)
  #endif
#elif ENABLED(PRUSA_MMU2)
  #define E_STEP_WRITE(E,V) E0_STEP_WRITE(V)
  #define   NORM_E_DIR(E)   E0_DIR_WRITE(!INVERT_E0_DIR)
  #define    REV_E_DIR(E)   E0_DIR_WRITE( INVERT_E0_DIR)

#elif ENABLED(MK2_MULTIPLEXER) // One multiplexed stepper driver, reversed on odd index
  #define E_STEP_WRITE(E,V) E0_STEP_WRITE(V)
  #define   NORM_E_DIR(E)   do{ E0_DIR_WRITE(TEST(E, 0) ? !INVERT_E0_DIR:  INVERT_E0_DIR); }while(0)
  #define    REV_E_DIR(E)   do{ E0_DIR_WRITE(TEST(E, 0) ?  INVERT_E0_DIR: !INVERT_E0_DIR); }while(0)

#elif E_STEPPERS > 1

  #if E_STEPPERS > 7

    #define _E_STEP_WRITE(E,V) do{ switch (E) { \
        case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); break; case 3: E3_STEP_WRITE(V); break; \
        case 4: E4_STEP_WRITE(V); break; case 5: E5_STEP_WRITE(V); break; case 6: E6_STEP_WRITE(V); break; case 7: E7_STEP_WRITE(V); break; \
      } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 3: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE(!INVERT_E4_DIR); break; case 5: E5_DIR_WRITE(!INVERT_E5_DIR); break; \
        case 6: E6_DIR_WRITE(!INVERT_E6_DIR); break; case 7: E7_DIR_WRITE(!INVERT_E7_DIR); break; \
      } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE( INVERT_E2_DIR); break; case 3: E3_DIR_WRITE( INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE( INVERT_E4_DIR); break; case 5: E5_DIR_WRITE( INVERT_E5_DIR); break; \
        case 6: E6_DIR_WRITE( INVERT_E6_DIR); break; case 7: E7_DIR_WRITE( INVERT_E7_DIR); break; \
      } }while(0)

  #elif E_STEPPERS > 6

    #define _E_STEP_WRITE(E,V) do{ switch (E) { \
        case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); break; case 3: E3_STEP_WRITE(V); break; \
        case 4: E4_STEP_WRITE(V); break; case 5: E5_STEP_WRITE(V); break; case 6: E6_STEP_WRITE(V); break; \
      } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 3: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE(!INVERT_E4_DIR); break; case 5: E5_DIR_WRITE(!INVERT_E5_DIR); break; \
        case 6: E6_DIR_WRITE(!INVERT_E6_DIR); break; \
      } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE( INVERT_E2_DIR); break; case 3: E3_DIR_WRITE( INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE( INVERT_E4_DIR); break; case 5: E5_DIR_WRITE( INVERT_E5_DIR); break; \
        case 6: E6_DIR_WRITE( INVERT_E6_DIR); break; \
      } }while(0)

  #elif E_STEPPERS > 5

    #define _E_STEP_WRITE(E,V) do{ switch (E) { \
        case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); break; case 3: E3_STEP_WRITE(V); break; \
        case 4: E4_STEP_WRITE(V); break; case 5: E5_STEP_WRITE(V); break; \
      } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 3: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE(!INVERT_E4_DIR); break; case 5: E5_DIR_WRITE(!INVERT_E5_DIR); break; \
      } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE( INVERT_E2_DIR); break; case 3: E3_DIR_WRITE( INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE( INVERT_E4_DIR); break; case 5: E5_DIR_WRITE( INVERT_E5_DIR); break; \
      } }while(0)

  #elif E_STEPPERS > 4

    #define _E_STEP_WRITE(E,V) do{ switch (E) { \
        case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); break; case 3: E3_STEP_WRITE(V); break; \
        case 4: E4_STEP_WRITE(V); break; \
      } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 3: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE(!INVERT_E4_DIR); break; \
      } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE( INVERT_E2_DIR); break; case 3: E3_DIR_WRITE( INVERT_E3_DIR); break; \
        case 4: E4_DIR_WRITE( INVERT_E4_DIR); break; \
      } }while(0)

  #elif E_STEPPERS > 3

    #define _E_STEP_WRITE(E,V) do{ switch (E) { \
        case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); break; case 3: E3_STEP_WRITE(V); break; \
      } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE(!INVERT_E2_DIR); break; case 3: E3_DIR_WRITE(!INVERT_E3_DIR); break; \
      } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { \
        case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; \
        case 2: E2_DIR_WRITE( INVERT_E2_DIR); break; case 3: E3_DIR_WRITE( INVERT_E3_DIR); break; \
      } }while(0)

  #elif E_STEPPERS > 2

    #define _E_STEP_WRITE(E,V) do{ switch (E) { case 0: E0_STEP_WRITE(V); break; case 1: E1_STEP_WRITE(V); break; case 2: E2_STEP_WRITE(V); } }while(0)
    #define   _NORM_E_DIR(E)   do{ switch (E) { case 0: E0_DIR_WRITE(!INVERT_E0_DIR); break; case 1: E1_DIR_WRITE(!INVERT_E1_DIR); break; case 2: E2_DIR_WRITE(!INVERT_E2_DIR); } }while(0)
    #define    _REV_E_DIR(E)   do{ switch (E) { case 0: E0_DIR_WRITE( INVERT_E0_DIR); break; case 1: E1_DIR_WRITE( INVERT_E1_DIR); break; case 2: E2_DIR_WRITE( INVERT_E2_DIR); } }while(0)

  #else

    #define _E_STEP_WRITE(E,V) do{ if (E == 0) { E0_STEP_WRITE(V); } else { E1_STEP_WRITE(V); } }while(0)
    #define   _NORM_E_DIR(E)   do{ if (E == 0) { E0_DIR_WRITE(!INVERT_E0_DIR); } else { E1_DIR_WRITE(!INVERT_E1_DIR); } }while(0)
    #define    _REV_E_DIR(E)   do{ if (E == 0) { E0_DIR_WRITE( INVERT_E0_DIR); } else { E1_DIR_WRITE( INVERT_E1_DIR); } }while(0)
  #endif

  #if HAS_DUPLICATION_MODE

    #if ENABLED(MULTI_NOZZLE_DUPLICATION)
      #define _DUPE(N,T,V)  do{ if (TEST(duplication_e_mask, N)) E##N##_##T##_WRITE(V); }while(0)
    #else
      #define _DUPE(N,T,V)  E##N##_##T##_WRITE(V)
    #endif

    #define NDIR(N) _DUPE(N,DIR,!INVERT_E##N##_DIR)
    #define RDIR(N) _DUPE(N,DIR, INVERT_E##N##_DIR)

    #define E_STEP_WRITE(E,V) do{ if (extruder_duplication_enabled) { DUPE(STEP,V); } else _E_STEP_WRITE(E,V); }while(0)

    #if E_STEPPERS > 2
      #if E_STEPPERS > 7
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); _DUPE(3,T,V); _DUPE(4,T,V); _DUPE(5,T,V); _DUPE(6,T,V); _DUPE(7,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); NDIR(3); NDIR(4); NDIR(5); NDIR(6); NDIR(7); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); RDIR(3); RDIR(4); RDIR(5); RDIR(6); RDIR(7); } else  _REV_E_DIR(E); }while(0)
      #elif E_STEPPERS > 6
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); _DUPE(3,T,V); _DUPE(4,T,V); _DUPE(5,T,V); _DUPE(6,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); NDIR(3); NDIR(4); NDIR(5); NDIR(6); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); RDIR(3); RDIR(4); RDIR(5); RDIR(6); } else  _REV_E_DIR(E); }while(0)
      #elif E_STEPPERS > 5
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); _DUPE(3,T,V); _DUPE(4,T,V); _DUPE(5,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); NDIR(3); NDIR(4); NDIR(5); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); RDIR(3); RDIR(4); RDIR(5); } else  _REV_E_DIR(E); }while(0)
      #elif E_STEPPERS > 4
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); _DUPE(3,T,V); _DUPE(4,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); NDIR(3); NDIR(4); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); RDIR(3); RDIR(4); } else  _REV_E_DIR(E); }while(0)
      #elif E_STEPPERS > 3
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); _DUPE(3,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); NDIR(3); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); RDIR(3); } else  _REV_E_DIR(E); }while(0)
      #else
        #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); _DUPE(2,T,V); }while(0)
        #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); NDIR(2); } else _NORM_E_DIR(E); }while(0)
        #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); RDIR(2); } else  _REV_E_DIR(E); }while(0)
      #endif
    #else
      #define DUPE(T,V)     do{ _DUPE(0,T,V); _DUPE(1,T,V); }while(0)
      #define NORM_E_DIR(E) do{ if (extruder_duplication_enabled) { NDIR(0); NDIR(1); } else _NORM_E_DIR(E); }while(0)
      #define REV_E_DIR(E)  do{ if (extruder_duplication_enabled) { RDIR(0); RDIR(1); } else  _REV_E_DIR(E); }while(0)
    #endif

  #else

    #define E_STEP_WRITE(E,V) _E_STEP_WRITE(E,V)
    #define   NORM_E_DIR(E)   _NORM_E_DIR(E)
    #define    REV_E_DIR(E)   _REV_E_DIR(E)

  #endif

#elif E_STEPPERS
  #define E_STEP_WRITE(E,V) E0_STEP_WRITE(V)
  #define   NORM_E_DIR(E)   E0_DIR_WRITE(!INVERT_E0_DIR)
  #define    REV_E_DIR(E)   E0_DIR_WRITE( INVERT_E0_DIR)

#else
  #define E_STEP_WRITE(E,V) NOOP
  #define   NORM_E_DIR(E)   NOOP
  #define    REV_E_DIR(E)   NOOP

#endif

//
// Individual stepper enable / disable macros
//

#ifndef ENABLE_STEPPER_X
  #if HAS_X_ENABLE
    #define  ENABLE_STEPPER_X() X_ENABLE_WRITE( X_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_X() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_X
  #if HAS_X_ENABLE
    #define DISABLE_STEPPER_X() X_ENABLE_WRITE(!X_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_X() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_X2
  #if HAS_X2_ENABLE
    #define  ENABLE_STEPPER_X2() X2_ENABLE_WRITE( X_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_X2() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_X2
  #if HAS_X2_ENABLE
    #define DISABLE_STEPPER_X2() X2_ENABLE_WRITE(!X_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_X2() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Y
  #if HAS_Y_ENABLE
    #define  ENABLE_STEPPER_Y() Y_ENABLE_WRITE( Y_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Y() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Y
  #if HAS_Y_ENABLE
    #define DISABLE_STEPPER_Y() Y_ENABLE_WRITE(!Y_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Y() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Y2
  #if HAS_Y2_ENABLE
    #define  ENABLE_STEPPER_Y2() Y2_ENABLE_WRITE( Y_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Y2() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Y2
  #if HAS_Y2_ENABLE
    #define DISABLE_STEPPER_Y2() Y2_ENABLE_WRITE(!Y_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Y2() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Z
  #if HAS_Z_ENABLE
    #define  ENABLE_STEPPER_Z() Z_ENABLE_WRITE( Z_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Z() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Z
  #if HAS_Z_ENABLE
    #define DISABLE_STEPPER_Z() Z_ENABLE_WRITE(!Z_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Z() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Z2
  #if HAS_Z2_ENABLE
    #define  ENABLE_STEPPER_Z2() Z2_ENABLE_WRITE( Z_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Z2() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Z2
  #if HAS_Z2_ENABLE
    #define DISABLE_STEPPER_Z2() Z2_ENABLE_WRITE(!Z_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Z2() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Z3
  #if HAS_Z3_ENABLE
    #define  ENABLE_STEPPER_Z3() Z3_ENABLE_WRITE( Z_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Z3() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Z3
  #if HAS_Z3_ENABLE
    #define DISABLE_STEPPER_Z3() Z3_ENABLE_WRITE(!Z_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Z3() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_Z4
  #if HAS_Z4_ENABLE
    #define  ENABLE_STEPPER_Z4() Z4_ENABLE_WRITE( Z_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_Z4() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_Z4
  #if HAS_Z4_ENABLE
    #define DISABLE_STEPPER_Z4() Z4_ENABLE_WRITE(!Z_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_Z4() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E0
  #if HAS_E0_ENABLE
    #define  ENABLE_STEPPER_E0() E0_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E0() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E0
  #if HAS_E0_ENABLE
    #define DISABLE_STEPPER_E0() E0_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E0() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E1
  #if E_STEPPERS > 1 && HAS_E1_ENABLE
    #define  ENABLE_STEPPER_E1() E1_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E1() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E1
  #if E_STEPPERS > 1 && HAS_E1_ENABLE
    #define DISABLE_STEPPER_E1() E1_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E1() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E2
  #if E_STEPPERS > 2 && HAS_E2_ENABLE
    #define  ENABLE_STEPPER_E2() E2_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E2() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E2
  #if E_STEPPERS > 2 && HAS_E2_ENABLE
    #define DISABLE_STEPPER_E2() E2_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E2() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E3
  #if E_STEPPERS > 3 && HAS_E3_ENABLE
    #define  ENABLE_STEPPER_E3() E3_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E3() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E3
  #if E_STEPPERS > 3 && HAS_E3_ENABLE
    #define DISABLE_STEPPER_E3() E3_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E3() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E4
  #if E_STEPPERS > 4 && HAS_E4_ENABLE
    #define  ENABLE_STEPPER_E4() E4_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E4() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E4
  #if E_STEPPERS > 4 && HAS_E4_ENABLE
    #define DISABLE_STEPPER_E4() E4_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E4() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E5
  #if E_STEPPERS > 5 && HAS_E5_ENABLE
    #define  ENABLE_STEPPER_E5() E5_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E5() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E5
  #if E_STEPPERS > 5 && HAS_E5_ENABLE
    #define DISABLE_STEPPER_E5() E5_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E5() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E6
  #if E_STEPPERS > 6 && HAS_E6_ENABLE
    #define  ENABLE_STEPPER_E6() E6_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E6() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E6
  #if E_STEPPERS > 6 && HAS_E6_ENABLE
    #define DISABLE_STEPPER_E6() E6_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E6() NOOP
  #endif
#endif

#ifndef ENABLE_STEPPER_E7
  #if E_STEPPERS > 7 && HAS_E7_ENABLE
    #define  ENABLE_STEPPER_E7() E7_ENABLE_WRITE( E_ENABLE_ON)
  #else
    #define  ENABLE_STEPPER_E7() NOOP
  #endif
#endif
#ifndef DISABLE_STEPPER_E7
  #if E_STEPPERS > 7 && HAS_E7_ENABLE
    #define DISABLE_STEPPER_E7() E7_ENABLE_WRITE(!E_ENABLE_ON)
  #else
    #define DISABLE_STEPPER_E7() NOOP
  #endif
#endif

//
// Axis steppers enable / disable macros
//

#define  ENABLE_AXIS_X() do{ ENABLE_STEPPER_X(); ENABLE_STEPPER_X2(); }while(0)
#define DISABLE_AXIS_X() do{ DISABLE_STEPPER_X(); DISABLE_STEPPER_X2(); CBI(axis_known_position, X_AXIS); }while(0)

#define  ENABLE_AXIS_Y() do{ ENABLE_STEPPER_Y(); ENABLE_STEPPER_Y2(); }while(0)
#define DISABLE_AXIS_Y() do{ DISABLE_STEPPER_Y(); DISABLE_STEPPER_Y2(); CBI(axis_known_position, Y_AXIS); }while(0)

#define  ENABLE_AXIS_Z() do{ ENABLE_STEPPER_Z();  ENABLE_STEPPER_Z2();  ENABLE_STEPPER_Z3();  ENABLE_STEPPER_Z4(); }while(0)
#define DISABLE_AXIS_Z() do{ DISABLE_STEPPER_Z(); DISABLE_STEPPER_Z2(); DISABLE_STEPPER_Z3(); DISABLE_STEPPER_Z4(); CBI(axis_known_position, Z_AXIS); }while(0)

//
// Extruder steppers enable / disable macros
//

#if ENABLED(MIXING_EXTRUDER)
  /**
   * Mixing steppers keep all their enable (and direction) states synchronized
   */
  #define _CALL_ENA_E(N)  ENABLE_STEPPER_E##N () ;
  #define _CALL_DIS_E(N) DISABLE_STEPPER_E##N () ;
  #define  ENABLE_AXIS_E0() { RREPEAT(MIXING_STEPPERS, _CALL_ENA_E) }
  #define DISABLE_AXIS_E0() { RREPEAT(MIXING_STEPPERS, _CALL_DIS_E) }
#endif

#ifndef ENABLE_AXIS_E0
  #if E_STEPPERS > 0 && HAS_E0_ENABLE
    #define  ENABLE_AXIS_E0() ENABLE_STEPPER_E0()
  #else
    #define  ENABLE_AXIS_E0() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E0
  #if E_STEPPERS > 0 && HAS_E0_ENABLE
    #define DISABLE_AXIS_E0() DISABLE_STEPPER_E0()
  #else
    #define DISABLE_AXIS_E0() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E1
  #if E_STEPPERS > 1 && HAS_E1_ENABLE
    #define  ENABLE_AXIS_E1() ENABLE_STEPPER_E1()
  #else
    #define  ENABLE_AXIS_E1() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E1
  #if E_STEPPERS > 1 && HAS_E1_ENABLE
    #define DISABLE_AXIS_E1() DISABLE_STEPPER_E1()
  #else
    #define DISABLE_AXIS_E1() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E2
  #if E_STEPPERS > 2 && HAS_E2_ENABLE
    #define  ENABLE_AXIS_E2() ENABLE_STEPPER_E2()
  #else
    #define  ENABLE_AXIS_E2() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E2
  #if E_STEPPERS > 2 && HAS_E2_ENABLE
    #define DISABLE_AXIS_E2() DISABLE_STEPPER_E2()
  #else
    #define DISABLE_AXIS_E2() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E3
  #if E_STEPPERS > 3 && HAS_E3_ENABLE
    #define  ENABLE_AXIS_E3() ENABLE_STEPPER_E3()
  #else
    #define  ENABLE_AXIS_E3() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E3
  #if E_STEPPERS > 3 && HAS_E3_ENABLE
    #define DISABLE_AXIS_E3() DISABLE_STEPPER_E3()
  #else
    #define DISABLE_AXIS_E3() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E4
  #if E_STEPPERS > 4 && HAS_E4_ENABLE
    #define  ENABLE_AXIS_E4() ENABLE_STEPPER_E4()
  #else
    #define  ENABLE_AXIS_E4() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E4
  #if E_STEPPERS > 4 && HAS_E4_ENABLE
    #define DISABLE_AXIS_E4() DISABLE_STEPPER_E4()
  #else
    #define DISABLE_AXIS_E4() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E5
  #if E_STEPPERS > 5 && HAS_E5_ENABLE
    #define  ENABLE_AXIS_E5() ENABLE_STEPPER_E5()
  #else
    #define  ENABLE_AXIS_E5() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E5
  #if E_STEPPERS > 5 && HAS_E5_ENABLE
    #define DISABLE_AXIS_E5() DISABLE_STEPPER_E5()
  #else
    #define DISABLE_AXIS_E5() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E6
  #if E_STEPPERS > 6 && HAS_E6_ENABLE
    #define  ENABLE_AXIS_E6() ENABLE_STEPPER_E6()
  #else
    #define  ENABLE_AXIS_E6() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E6
  #if E_STEPPERS > 6 && HAS_E6_ENABLE
    #define DISABLE_AXIS_E6() DISABLE_STEPPER_E6()
  #else
    #define DISABLE_AXIS_E6() NOOP
  #endif
#endif

#ifndef ENABLE_AXIS_E7
  #if E_STEPPERS > 7 && HAS_E7_ENABLE
    #define  ENABLE_AXIS_E7() ENABLE_STEPPER_E7()
  #else
    #define  ENABLE_AXIS_E7() NOOP
  #endif
#endif
#ifndef DISABLE_AXIS_E7
  #if E_STEPPERS > 7 && HAS_E7_ENABLE
    #define DISABLE_AXIS_E7() DISABLE_STEPPER_E7()
  #else
    #define DISABLE_AXIS_E7() NOOP
  #endif
#endif