Marlin_Firmware/Marlin/src/feature/runout.cpp

/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 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/>.
 *
 */

/**
 * feature/runout.cpp - Runout sensor support
 */

#include "../inc/MarlinConfigPre.h"

#if ENABLED(FILAMENT_RUNOUT_SENSOR)

#include "runout.h"

FilamentRunoutSensor runout;

bool FilamentRunoutSensor::filament_ran_out; // = false
uint8_t FilamentRunoutSensor::runout_count; // = 0

void FilamentRunoutSensor::setup() {

  #if ENABLED(FIL_RUNOUT_PULLUP)
    #define INIT_RUNOUT_PIN(P) SET_INPUT_PULLUP(P)
  #elif ENABLED(FIL_RUNOUT_PULLDOWN)
    #define INIT_RUNOUT_PIN(P) SET_INPUT_PULLDOWN(P)
  #else
    #define INIT_RUNOUT_PIN(P) SET_INPUT(P)
  #endif

  INIT_RUNOUT_PIN(FIL_RUNOUT_PIN);
  #if NUM_RUNOUT_SENSORS > 1
    INIT_RUNOUT_PIN(FIL_RUNOUT2_PIN);
    #if NUM_RUNOUT_SENSORS > 2
      INIT_RUNOUT_PIN(FIL_RUNOUT3_PIN);
      #if NUM_RUNOUT_SENSORS > 3
        INIT_RUNOUT_PIN(FIL_RUNOUT4_PIN);
        #if NUM_RUNOUT_SENSORS > 4
          INIT_RUNOUT_PIN(FIL_RUNOUT5_PIN);
        #endif
      #endif
    #endif
  #endif
}

#endif // FILAMENT_RUNOUT_SENSOR