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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
- *
- */
-
- #include "../inc/MarlinConfig.h"
-
- #if HAS_BEEPER
-
- #include "buzzer.h"
- #include "../module/temperature.h"
- #include "../lcd/marlinui.h"
-
- #if ENABLED(EXTENSIBLE_UI)
- #include "../lcd/extui/ui_api.h"
- #endif
-
- Buzzer::state_t Buzzer::state;
- CircularQueue<tone_t, TONE_QUEUE_LENGTH> 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*/) {
- if (!ui.sound_on) return;
- while (buffer.isFull()) {
- tick();
- thermalManager.task();
- }
- tone_t tone = { duration, frequency };
- buffer.enqueue(tone);
- }
-
- void Buzzer::tick() {
- if (!ui.sound_on) return;
- 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(EXTENSIBLE_UI) && DISABLED(EXTUI_LOCAL_BEEPER)
- CRITICAL_SECTION_START();
- ExtUI::onPlayTone(state.tone.frequency, state.tone.duration);
- CRITICAL_SECTION_END();
- #elif 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 // HAS_BEEPER
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