98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/**
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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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#include "../inc/MarlinConfig.h"
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#if ENABLED(USE_CONTROLLER_FAN)
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#include "controllerfan.h"
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#include "../module/stepper/indirection.h"
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#include "../module/temperature.h"
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ControllerFan controllerFan;
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uint8_t ControllerFan::speed;
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#if ENABLED(CONTROLLER_FAN_EDITABLE)
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controllerFan_settings_t ControllerFan::settings; // {0}
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#else
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const controllerFan_settings_t &ControllerFan::settings = controllerFan_defaults;
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#endif
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void ControllerFan::setup() {
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SET_OUTPUT(CONTROLLER_FAN_PIN);
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init();
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}
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void ControllerFan::set_fan_speed(const uint8_t s) {
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speed = s < (CONTROLLERFAN_SPEED_MIN) ? 0 : s; // Fan OFF below minimum
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}
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void ControllerFan::update() {
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static millis_t lastMotorOn = 0, // Last time a motor was turned on
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nextMotorCheck = 0; // Last time the state was checked
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const millis_t ms = millis();
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if (ELAPSED(ms, nextMotorCheck)) {
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nextMotorCheck = ms + 2500UL; // Not a time critical function, so only check every 2.5s
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#define MOTOR_IS_ON(A,B) (A##_ENABLE_READ() == bool(B##_ENABLE_ON))
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#define _OR_ENABLED_E(N) || MOTOR_IS_ON(E##N,E)
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const bool motor_on = (
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( DISABLED(CONTROLLER_FAN_IGNORE_Z) &&
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( MOTOR_IS_ON(Z,Z)
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|| TERN0(HAS_Z2_ENABLE, MOTOR_IS_ON(Z2,Z))
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|| TERN0(HAS_Z3_ENABLE, MOTOR_IS_ON(Z3,Z))
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|| TERN0(HAS_Z4_ENABLE, MOTOR_IS_ON(Z4,Z))
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)
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) || (
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DISABLED(CONTROLLER_FAN_USE_Z_ONLY) &&
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( MOTOR_IS_ON(X,X) || MOTOR_IS_ON(Y,Y)
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|| TERN0(HAS_X2_ENABLE, MOTOR_IS_ON(X2,X))
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|| TERN0(HAS_Y2_ENABLE, MOTOR_IS_ON(Y2,Y))
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#if E_STEPPERS
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REPEAT(E_STEPPERS, _OR_ENABLED_E)
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#endif
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)
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)
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);
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// If any of the drivers or the heated bed are enabled...
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if (motor_on || TERN0(HAS_HEATED_BED, thermalManager.temp_bed.soft_pwm_amount > 0))
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lastMotorOn = ms; //... set time to NOW so the fan will turn on
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// Fan Settings. Set fan > 0:
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// - If AutoMode is on and steppers have been enabled for CONTROLLERFAN_IDLE_TIME seconds.
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// - If System is on idle and idle fan speed settings is activated.
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set_fan_speed(
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settings.auto_mode && lastMotorOn && PENDING(ms, lastMotorOn + SEC_TO_MS(settings.duration))
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? settings.active_speed : settings.idle_speed
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);
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// Allow digital or PWM fan output (see M42 handling)
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WRITE(CONTROLLER_FAN_PIN, speed);
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analogWrite(pin_t(CONTROLLER_FAN_PIN), speed);
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}
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}
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#endif // USE_CONTROLLER_FAN
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