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337 lines
11 KiB
337 lines
11 KiB
/**
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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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* feature/runout.h - Runout sensor support
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*/
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#include "../sd/cardreader.h"
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#include "../module/printcounter.h"
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#include "../module/planner.h"
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#include "../module/stepper.h" // for block_t
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#include "../gcode/queue.h"
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#include "../inc/MarlinConfig.h"
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#if ENABLED(EXTENSIBLE_UI)
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#include "../lcd/extui/ui_api.h"
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#endif
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#if ENABLED(ADVANCED_PAUSE_FEATURE)
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#include "pause.h"
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#endif
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//#define FILAMENT_RUNOUT_SENSOR_DEBUG
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#ifndef FILAMENT_RUNOUT_THRESHOLD
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#define FILAMENT_RUNOUT_THRESHOLD 5
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#endif
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void event_filament_runout();
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template<class RESPONSE_T, class SENSOR_T>
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class TFilamentMonitor;
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class FilamentSensorEncoder;
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class FilamentSensorSwitch;
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class RunoutResponseDelayed;
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class RunoutResponseDebounced;
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/********************************* TEMPLATE SPECIALIZATION *********************************/
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typedef TFilamentMonitor<
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TERN(HAS_FILAMENT_RUNOUT_DISTANCE, RunoutResponseDelayed, RunoutResponseDebounced),
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TERN(FILAMENT_MOTION_SENSOR, FilamentSensorEncoder, FilamentSensorSwitch)
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> FilamentMonitor;
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extern FilamentMonitor runout;
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/*******************************************************************************************/
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class FilamentMonitorBase {
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public:
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static bool enabled, filament_ran_out;
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#if ENABLED(HOST_ACTION_COMMANDS)
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static bool host_handling;
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#else
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static constexpr bool host_handling = false;
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#endif
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};
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template<class RESPONSE_T, class SENSOR_T>
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class TFilamentMonitor : public FilamentMonitorBase {
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private:
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typedef RESPONSE_T response_t;
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typedef SENSOR_T sensor_t;
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static response_t response;
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static sensor_t sensor;
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public:
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static inline void setup() {
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sensor.setup();
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reset();
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}
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static inline void reset() {
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filament_ran_out = false;
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response.reset();
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}
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// Call this method when filament is present,
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// so the response can reset its counter.
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static inline void filament_present(const uint8_t extruder) {
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response.filament_present(extruder);
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}
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#if HAS_FILAMENT_RUNOUT_DISTANCE
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static inline float& runout_distance() { return response.runout_distance_mm; }
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static inline void set_runout_distance(const float &mm) { response.runout_distance_mm = mm; }
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#endif
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// Handle a block completion. RunoutResponseDelayed uses this to
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// add up the length of filament moved while the filament is out.
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static inline void block_completed(const block_t* const b) {
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if (enabled) {
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response.block_completed(b);
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sensor.block_completed(b);
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}
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}
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// Give the response a chance to update its counter.
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static inline void run() {
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if ( enabled && !filament_ran_out
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&& (printingIsActive() || TERN0(ADVANCED_PAUSE_FEATURE, did_pause_print))
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) {
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TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, cli()); // Prevent RunoutResponseDelayed::block_completed from accumulating here
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response.run();
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sensor.run();
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const bool ran_out = response.has_run_out();
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TERN_(HAS_FILAMENT_RUNOUT_DISTANCE, sei());
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if (ran_out) {
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filament_ran_out = true;
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event_filament_runout();
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planner.synchronize();
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}
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}
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}
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};
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/*************************** FILAMENT PRESENCE SENSORS ***************************/
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class FilamentSensorBase {
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protected:
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/**
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* Called by FilamentSensorSwitch::run when filament is detected.
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* Called by FilamentSensorEncoder::block_completed when motion is detected.
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*/
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static inline void filament_present(const uint8_t extruder) {
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runout.filament_present(extruder); // ...which calls response.filament_present(extruder)
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}
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public:
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static inline void setup() {
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#if ENABLED(FIL_RUNOUT_PULLUP)
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#define INIT_RUNOUT_PIN(P) SET_INPUT_PULLUP(P)
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#elif ENABLED(FIL_RUNOUT_PULLDOWN)
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#define INIT_RUNOUT_PIN(P) SET_INPUT_PULLDOWN(P)
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#else
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#define INIT_RUNOUT_PIN(P) SET_INPUT(P)
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#endif
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#define _INIT_RUNOUT(N) INIT_RUNOUT_PIN(FIL_RUNOUT##N##_PIN);
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REPEAT_S(1, INCREMENT(NUM_RUNOUT_SENSORS), _INIT_RUNOUT)
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#undef _INIT_RUNOUT
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#undef INIT_RUNOUT_PIN
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}
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// Return a bitmask of runout pin states
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static inline uint8_t poll_runout_pins() {
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#define _OR_RUNOUT(N) | (READ(FIL_RUNOUT##N##_PIN) ? _BV((N) - 1) : 0)
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return (0 REPEAT_S(1, INCREMENT(NUM_RUNOUT_SENSORS), _OR_RUNOUT));
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#undef _OR_RUNOUT
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}
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// Return a bitmask of runout flag states (1 bits always indicates runout)
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static inline uint8_t poll_runout_states() {
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return poll_runout_pins()
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#if FIL_RUNOUT_STATE == LOW
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^ uint8_t(_BV(NUM_RUNOUT_SENSORS) - 1)
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#endif
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;
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}
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};
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#if ENABLED(FILAMENT_MOTION_SENSOR)
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/**
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* This sensor uses a magnetic encoder disc and a Hall effect
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* sensor (or a slotted disc and optical sensor). The state
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* will toggle between 0 and 1 on filament movement. It can detect
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* filament runout and stripouts or jams.
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*/
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class FilamentSensorEncoder : public FilamentSensorBase {
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private:
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static uint8_t motion_detected;
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static inline void poll_motion_sensor() {
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static uint8_t old_state;
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const uint8_t new_state = poll_runout_pins(),
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change = old_state ^ new_state;
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old_state = new_state;
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#ifdef FILAMENT_RUNOUT_SENSOR_DEBUG
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if (change) {
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SERIAL_ECHOPGM("Motion detected:");
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LOOP_L_N(e, NUM_RUNOUT_SENSORS)
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if (TEST(change, e)) SERIAL_CHAR(' ', '0' + e);
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SERIAL_EOL();
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}
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#endif
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motion_detected |= change;
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}
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public:
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static inline void block_completed(const block_t* const b) {
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// If the sensor wheel has moved since the last call to
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// this method reset the runout counter for the extruder.
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if (TEST(motion_detected, b->extruder))
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filament_present(b->extruder);
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// Clear motion triggers for next block
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motion_detected = 0;
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}
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static inline void run() { poll_motion_sensor(); }
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};
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#else
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/**
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* This is a simple endstop switch in the path of the filament.
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* It can detect filament runout, but not stripouts or jams.
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*/
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class FilamentSensorSwitch : public FilamentSensorBase {
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private:
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static inline bool poll_runout_state(const uint8_t extruder) {
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const uint8_t runout_states = poll_runout_states();
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#if NUM_RUNOUT_SENSORS == 1
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UNUSED(extruder);
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#else
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if ( !TERN0(DUAL_X_CARRIAGE, dxc_is_duplicating())
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&& !TERN0(MULTI_NOZZLE_DUPLICATION, extruder_duplication_enabled)
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) return TEST(runout_states, extruder); // A specific extruder ran out
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#endif
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return !!runout_states; // Any extruder ran out
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}
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public:
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static inline void block_completed(const block_t* const) {}
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static inline void run() {
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const bool out = poll_runout_state(active_extruder);
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if (!out) filament_present(active_extruder);
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#ifdef FILAMENT_RUNOUT_SENSOR_DEBUG
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static bool was_out = false;
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if (out != was_out) {
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was_out = out;
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SERIAL_ECHOPGM("Filament ");
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serialprintPGM(out ? PSTR("OUT\n") : PSTR("IN\n"));
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}
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#endif
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}
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};
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#endif // !FILAMENT_MOTION_SENSOR
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/********************************* RESPONSE TYPE *********************************/
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#if HAS_FILAMENT_RUNOUT_DISTANCE
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// RunoutResponseDelayed triggers a runout event only if the length
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// of filament specified by FILAMENT_RUNOUT_DISTANCE_MM has been fed
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// during a runout condition.
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class RunoutResponseDelayed {
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private:
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static volatile float runout_mm_countdown[EXTRUDERS];
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public:
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static float runout_distance_mm;
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static inline void reset() {
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LOOP_L_N(i, EXTRUDERS) filament_present(i);
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}
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static inline void run() {
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#ifdef FILAMENT_RUNOUT_SENSOR_DEBUG
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static millis_t t = 0;
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const millis_t ms = millis();
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if (ELAPSED(ms, t)) {
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t = millis() + 1000UL;
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LOOP_L_N(i, EXTRUDERS) {
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serialprintPGM(i ? PSTR(", ") : PSTR("Remaining mm: "));
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SERIAL_ECHO(runout_mm_countdown[i]);
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}
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SERIAL_EOL();
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}
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#endif
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}
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static inline bool has_run_out() {
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return runout_mm_countdown[active_extruder] < 0;
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}
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static inline void filament_present(const uint8_t extruder) {
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runout_mm_countdown[extruder] = runout_distance_mm;
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}
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static inline void block_completed(const block_t* const b) {
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if (b->steps.x || b->steps.y || b->steps.z
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|| TERN0(ADVANCED_PAUSE_FEATURE, did_pause_print) // Allow pause purge move to re-trigger runout state
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) {
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// Only trigger on extrusion with XYZ movement to allow filament change and retract/recover.
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const uint8_t e = b->extruder;
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const int32_t steps = b->steps.e;
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runout_mm_countdown[e] -= (TEST(b->direction_bits, E_AXIS) ? -steps : steps) * planner.steps_to_mm[E_AXIS_N(e)];
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}
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}
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};
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#else // !HAS_FILAMENT_RUNOUT_DISTANCE
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// RunoutResponseDebounced triggers a runout event after a runout
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// condition has been detected runout_threshold times in a row.
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class RunoutResponseDebounced {
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private:
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static constexpr int8_t runout_threshold = FILAMENT_RUNOUT_THRESHOLD;
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static int8_t runout_count;
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public:
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static inline void reset() { runout_count = runout_threshold; }
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static inline void run() { if (runout_count >= 0) runout_count--; }
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static inline bool has_run_out() { return runout_count < 0; }
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static inline void block_completed(const block_t* const) { }
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static inline void filament_present(const uint8_t) { runout_count = runout_threshold; }
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};
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#endif // !HAS_FILAMENT_RUNOUT_DISTANCE
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