87 lines
3.1 KiB
C++
87 lines
3.1 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.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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// If any triggers for the controller fan are true...
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// - At least one stepper driver is enabled
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// - The heated bed is enabled
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// - TEMP_SENSOR_BOARD is reporting >= CONTROLLER_FAN_MIN_BOARD_TEMP
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const ena_mask_t axis_mask = TERN(CONTROLLER_FAN_USE_Z_ONLY, _BV(Z_AXIS), (ena_mask_t)~TERN0(CONTROLLER_FAN_IGNORE_Z, _BV(Z_AXIS)));
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if ( (stepper.axis_enabled.bits & axis_mask)
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|| TERN0(HAS_HEATED_BED, thermalManager.temp_bed.soft_pwm_amount > 0)
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|| TERN0(HAS_CONTROLLER_FAN_MIN_BOARD_TEMP, thermalManager.wholeDegBoard() >= CONTROLLER_FAN_MIN_BOARD_TEMP)
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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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#if ENABLED(FAN_SOFT_PWM)
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thermalManager.soft_pwm_controller_speed = speed;
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#else
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if (PWM_PIN(CONTROLLER_FAN_PIN))
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set_pwm_duty(pin_t(CONTROLLER_FAN_PIN), speed);
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else
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WRITE(CONTROLLER_FAN_PIN, speed > 0);
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#endif
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}
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}
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#endif // USE_CONTROLLER_FAN
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