diff --git a/Marlin/src/Marlin.cpp b/Marlin/src/Marlin.cpp
index b14cf9eb7..a432eead0 100644
--- a/Marlin/src/Marlin.cpp
+++ b/Marlin/src/Marlin.cpp
@@ -258,6 +258,10 @@
#include "libs/duration_t.h"
#include "gcode/parser.h"
+#if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
+ #include "libs/buzzer.h"
+#endif
+
#if HAS_ABL
#include "libs/vector_3.h"
#if ENABLED(AUTO_BED_LEVELING_LINEAR)
@@ -271,10 +275,6 @@
#include "module/planner_bezier.h"
#endif
-#if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
- #include "libs/buzzer.h"
-#endif
-
#if ENABLED(MAX7219_DEBUG)
#include "feature/leds/Max7219_Debug_LEDs.h"
#endif
@@ -495,16 +495,6 @@ static millis_t stepper_inactive_time = (DEFAULT_STEPPER_DEACTIVE_TIME) * 1000UL
Stopwatch print_job_timer = Stopwatch();
#endif
-// Buzzer - I2C on the LCD or a BEEPER_PIN
-#if ENABLED(LCD_USE_I2C_BUZZER)
- #define BUZZ(d,f) lcd_buzz(d, f)
-#elif PIN_EXISTS(BEEPER)
- Buzzer buzzer;
- #define BUZZ(d,f) buzzer.tone(d, f)
-#else
- #define BUZZ(d,f) NOOP
-#endif
-
static uint8_t target_extruder;
#if HAS_BED_PROBE
diff --git a/Marlin/src/lcd/ultralcd.cpp b/Marlin/src/lcd/ultralcd.cpp
index 1adb40cd0..7e40a438e 100644
--- a/Marlin/src/lcd/ultralcd.cpp
+++ b/Marlin/src/lcd/ultralcd.cpp
@@ -34,10 +34,6 @@
#include "../Marlin.h"
-#if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
- #include "../libs/buzzer.h"
-#endif
-
#if ENABLED(PRINTCOUNTER)
#include "../module/printcounter.h"
#include "../libs/duration_t.h"
@@ -59,6 +55,11 @@
#include "../feature/bedlevel/bedlevel.h"
#endif
+// For i2c define BUZZ to use lcd_buzz
+#if DISABLED(LCD_USE_I2C_BUZZER)
+ #include "../libs/buzzer.h"
+#endif
+
// Initialized by settings.load()
int16_t lcd_preheat_hotend_temp[2], lcd_preheat_bed_temp[2], lcd_preheat_fan_speed[2];
@@ -679,7 +680,7 @@ void kill_screen(const char* lcd_msg) {
* Audio feedback for controller clicks
*
*/
- void lcd_buzz(long duration, uint16_t freq) {
+ void lcd_buzz(const long duration, const uint16_t freq) {
#if ENABLED(LCD_USE_I2C_BUZZER)
lcd.buzz(duration, freq);
#elif PIN_EXISTS(BEEPER)
@@ -4803,11 +4804,7 @@ void lcd_reset_alert_level() { lcd_status_message_level = 0; }
#if ENABLED(AUTO_BED_LEVELING_UBL)
void chirp_at_user() {
- #if ENABLED(LCD_USE_I2C_BUZZER)
- lcd.buzz(LCD_FEEDBACK_FREQUENCY_DURATION_MS, LCD_FEEDBACK_FREQUENCY_HZ);
- #elif PIN_EXISTS(BEEPER)
- buzzer.tone(LCD_FEEDBACK_FREQUENCY_DURATION_MS, LCD_FEEDBACK_FREQUENCY_HZ);
- #endif
+ lcd_buzz(LCD_FEEDBACK_FREQUENCY_DURATION_MS, LCD_FEEDBACK_FREQUENCY_HZ);
}
bool ubl_lcd_clicked() { return LCD_CLICKED; }
diff --git a/Marlin/src/lcd/ultralcd.h b/Marlin/src/lcd/ultralcd.h
index ceed68eed..1ceb972ee 100644
--- a/Marlin/src/lcd/ultralcd.h
+++ b/Marlin/src/lcd/ultralcd.h
@@ -56,7 +56,7 @@
inline void lcd_refresh() { lcdDrawUpdate = LCDVIEW_CLEAR_CALL_REDRAW; }
#if HAS_BUZZER
- void lcd_buzz(long duration, uint16_t freq);
+ void lcd_buzz(const long duration, const uint16_t freq);
#endif
#if ENABLED(LCD_PROGRESS_BAR) && PROGRESS_MSG_EXPIRE > 0
diff --git a/Marlin/src/libs/buzzer.cpp b/Marlin/src/libs/buzzer.cpp
new file mode 100644
index 000000000..117104001
--- /dev/null
+++ b/Marlin/src/libs/buzzer.cpp
@@ -0,0 +1,73 @@
+/**
+ * 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 .
+ *
+ */
+
+#include "../inc/MarlinConfig.h"
+
+#if DISABLED(LCD_USE_I2C_BUZZER) && PIN_EXISTS(BEEPER)
+
+#include "buzzer.h"
+#include "../module/temperature.h"
+
+Buzzer::state_t Buzzer::state;
+CircularQueue Buzzer::buffer;
+Buzzer buzzer;
+
+/**
+ * @brief Add a tone to the queue
+ * @details Adds a tone_t structure to the ring buffer, will block IO if the
+ * queue is full waiting for one slot to get available.
+ *
+ * @param duration Duration of the tone in milliseconds
+ * @param frequency Frequency of the tone in hertz
+ */
+void Buzzer::tone(const uint16_t duration, const uint16_t frequency/*=0*/) {
+ while (buffer.isFull()) {
+ tick();
+ thermalManager.manage_heater();
+ }
+ tone_t tone = { duration, frequency };
+ buffer.enqueue(tone);
+}
+
+void Buzzer::tick() {
+ const millis_t now = millis();
+
+ if (!state.endtime) {
+ if (buffer.isEmpty()) return;
+
+ state.tone = buffer.dequeue();
+ state.endtime = now + state.tone.duration;
+
+ if (state.tone.frequency > 0) {
+ #if ENABLED(SPEAKER)
+ CRITICAL_SECTION_START;
+ ::tone(BEEPER_PIN, state.tone.frequency, state.tone.duration);
+ CRITICAL_SECTION_END;
+ #else
+ on();
+ #endif
+ }
+ }
+ else if (ELAPSED(now, state.endtime)) reset();
+}
+
+#endif // !LCD_USE_I2C_BUZZER && BEEPER
diff --git a/Marlin/src/libs/buzzer.h b/Marlin/src/libs/buzzer.h
index ef183ead4..9cc23695c 100644
--- a/Marlin/src/libs/buzzer.h
+++ b/Marlin/src/libs/buzzer.h
@@ -23,11 +23,14 @@
#ifndef __BUZZER_H__
#define __BUZZER_H__
-#include "types.h"
-#include "circularqueue.h"
-#include "temperature.h"
+#include "../inc/MarlinConfig.h"
+
+// Make a buzzer and macro
+#if ENABLED(LCD_USE_I2C_BUZZER)
+ // BUZZ() will be defined in ultralcd.h
+#elif PIN_EXISTS(BEEPER)
-#include "MarlinConfig.h"
+#include "circularqueue.h"
#define TONE_QUEUE_LENGTH 4
@@ -44,46 +47,44 @@ struct tone_t {
* @brief Buzzer class
*/
class Buzzer {
- private:
- struct state_t {
+ public:
+
+ typedef struct {
tone_t tone;
uint32_t endtime;
- } state;
+ } state_t;
+
+ private:
+ static state_t state;
protected:
- CircularQueue buffer;
+ static CircularQueue buffer;
/**
* @brief Inverts the sate of a digital PIN
* @details This will invert the current state of an digital IO pin.
*/
- void invert() {
- TOGGLE(BEEPER_PIN);
- }
+ FORCE_INLINE static void invert() { TOGGLE(BEEPER_PIN); }
/**
* @brief Turn off a digital PIN
* @details Alias of digitalWrite(PIN, LOW) using FastIO
*/
- void off() {
- WRITE(BEEPER_PIN, LOW);
- }
+ FORCE_INLINE static void off() { WRITE(BEEPER_PIN, LOW); }
/**
* @brief Turn on a digital PIN
* @details Alias of digitalWrite(PIN, HIGH) using FastIO
*/
- void on() {
- WRITE(BEEPER_PIN, HIGH);
- }
+ FORCE_INLINE static void on() { WRITE(BEEPER_PIN, HIGH); }
/**
* @brief Resets the state of the class
* @details Brings the class state to a known one.
*/
- void reset() {
- this->off();
- this->state.endtime = 0;
+ inline static void reset() {
+ off();
+ state.endtime = 0;
}
public:
@@ -92,7 +93,7 @@ class Buzzer {
*/
Buzzer() {
SET_OUTPUT(BEEPER_PIN);
- this->reset();
+ reset();
}
/**
@@ -103,43 +104,24 @@ class Buzzer {
* @param duration Duration of the tone in milliseconds
* @param frequency Frequency of the tone in hertz
*/
- void tone(const uint16_t &duration, const uint16_t &frequency = 0) {
- while (buffer.isFull()) {
- this->tick();
- thermalManager.manage_heater();
- }
- tone_t tone = { duration, frequency };
- this->buffer.enqueue(tone);
- }
+ static void tone(const uint16_t duration, const uint16_t frequency=0);
/**
- * @brief Loop function
+ * @brief Tick function
* @details This function should be called at loop, it will take care of
* playing the tones in the queue.
*/
- virtual void tick() {
- const millis_t now = millis();
-
- if (!this->state.endtime) {
- if (this->buffer.isEmpty()) return;
-
- this->state.tone = this->buffer.dequeue();
- this->state.endtime = now + this->state.tone.duration;
-
- if (this->state.tone.frequency > 0) {
- #if ENABLED(SPEAKER)
- CRITICAL_SECTION_START;
- ::tone(BEEPER_PIN, this->state.tone.frequency, this->state.tone.duration);
- CRITICAL_SECTION_END;
- #else
- this->on();
- #endif
- }
- }
- else if (ELAPSED(now, this->state.endtime)) this->reset();
- }
+ static void tick();
};
-extern Buzzer buzzer;
+ // Provide a buzzer instance
+ extern Buzzer buzzer;
+ #define BUZZ(d,f) buzzer.tone(d, f)
+
+#else // No buzz capability
+
+ #define BUZZ(d,f) NOOP
+
+#endif
#endif