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/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* Endstop Interrupts
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*
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* Without endstop interrupts the endstop pins must be polled continually in
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* the temperature-ISR via endstops.update(), most of the time finding no change.
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* With this feature endstops.update() is called only when we know that at
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* least one endstop has changed state, saving valuable CPU cycles.
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*
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* This feature only works when all used endstop pins can generate an 'external interrupt'.
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*
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* Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
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* (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
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*/
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#include "../../module/endstops.h"
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// One ISR for all EXT-Interrupts
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void endstop_ISR() { endstops.update(); }
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/**
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* Endstop interrupts for Due based targets.
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* On Due, all pins support external interrupt capability.
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*/
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void setup_endstop_interrupts() {
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#define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
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TERN_(HAS_X_MAX, _ATTACH(X_MAX_PIN));
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TERN_(HAS_X_MIN, _ATTACH(X_MIN_PIN));
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TERN_(HAS_Y_MAX, _ATTACH(Y_MAX_PIN));
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TERN_(HAS_Y_MIN, _ATTACH(Y_MIN_PIN));
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TERN_(HAS_Z_MAX, _ATTACH(Z_MAX_PIN));
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TERN_(HAS_Z_MIN, _ATTACH(Z_MIN_PIN));
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TERN_(HAS_X2_MAX, _ATTACH(X2_MAX_PIN));
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TERN_(HAS_X2_MIN, _ATTACH(X2_MIN_PIN));
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TERN_(HAS_Y2_MAX, _ATTACH(Y2_MAX_PIN));
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TERN_(HAS_Y2_MIN, _ATTACH(Y2_MIN_PIN));
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TERN_(HAS_Z2_MAX, _ATTACH(Z2_MAX_PIN));
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TERN_(HAS_Z2_MIN, _ATTACH(Z2_MIN_PIN));
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TERN_(HAS_Z3_MAX, _ATTACH(Z3_MAX_PIN));
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TERN_(HAS_Z3_MIN, _ATTACH(Z3_MIN_PIN));
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TERN_(HAS_Z4_MAX, _ATTACH(Z4_MAX_PIN));
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TERN_(HAS_Z4_MIN, _ATTACH(Z4_MIN_PIN));
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TERN_(HAS_Z_MIN_PROBE_PIN, _ATTACH(Z_MIN_PROBE_PIN));
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TERN_(HAS_I_MAX, _ATTACH(I_MAX_PIN));
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TERN_(HAS_I_MIN, _ATTACH(I_MIN_PIN));
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TERN_(HAS_J_MAX, _ATTACH(J_MAX_PIN));
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TERN_(HAS_J_MIN, _ATTACH(J_MIN_PIN));
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TERN_(HAS_K_MAX, _ATTACH(K_MAX_PIN));
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TERN_(HAS_K_MIN, _ATTACH(K_MIN_PIN));
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}
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