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Implement buzzer methods with AudioContext API

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This commit is contained in:
Alexsander Akers
2022-01-27 11:12:01 -05:00
parent 14e4562b7a
commit a0f8e9c8bc
7 changed files with 95 additions and 25 deletions
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4
watch-library/hardware/watch/watch_buzzer.c
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@@ -47,10 +47,6 @@ inline void watch_set_buzzer_off(void) {
gpio_set_pin_function(BUZZER, GPIO_PIN_FUNCTION_OFF);
}
// note: the buzzer uses a 1 MHz clock. these values were determined by dividing 1,000,000 by the target frequency.
// i.e. for a 440 Hz tone (A4 on the piano), 1MHz/440Hz = 2273
const uint16_t NotePeriods[108] = {18182,17161,16197,15288,14430,13620,12857,12134,11453,10811,10204,9631,9091,8581,8099,7645,7216,6811,6428,6068,5727,5405,5102,4816,4545,4290,4050,3822,3608,3405,3214,3034,2863,2703,2551,2408,2273,2145,2025,1911,1804,1703,1607,1517,1432,1351,1276,1204,1136,1073,1012,956,902,851,804,758,716,676,638,602,568,536,506,478,451,426,402,379,358,338,319,301,284,268,253,239,225,213,201,190,179,169,159,150,142,134,127};
void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) {
if (note == BUZZER_NOTE_REST) {
watch_set_buzzer_off();

28
watch-library/shared/watch/watch_private_buzzer.c Normal file
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@@ -0,0 +1,28 @@
/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "driver_init.h"
// note: the buzzer uses a 1 MHz clock. these values were determined by dividing 1,000,000 by the target frequency.
// i.e. for a 440 Hz tone (A4 on the piano), 1MHz/440Hz = 2273
const uint16_t NotePeriods[108] = {18182,17161,16197,15288,14430,13620,12857,12134,11453,10811,10204,9631,9091,8581,8099,7645,7216,6811,6428,6068,5727,5405,5102,4816,4545,4290,4050,3822,3608,3405,3214,3034,2863,2703,2551,2408,2273,2145,2025,1911,1804,1703,1607,1517,1432,1351,1276,1204,1136,1073,1012,956,902,851,804,758,716,676,638,602,568,536,506,478,451,426,402,379,358,338,319,301,284,268,253,239,225,213,201,190,179,169,159,150,142,134,127};

82
watch-library/simulator/watch/watch_buzzer.c
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@@ -24,37 +24,79 @@
#include "watch_buzzer.h"
inline void watch_enable_buzzer(void) {
// TODO: (a2) hook to UI
#include <emscripten.h>
static bool buzzer_enabled = false;
static uint32_t buzzer_period;
void watch_enable_buzzer(void) {
buzzer_enabled = true;
buzzer_period = NotePeriods[BUZZER_NOTE_A4];
EM_ASM({
Module['audioContext'] = new (window.AudioContext || window.webkitAudioContext)();
});
}
inline void watch_set_buzzer_period(uint32_t period) {
// TODO: (a2) hook to UI
void watch_set_buzzer_period(uint32_t period) {
if (!buzzer_enabled) return;
buzzer_period = period;
}
void watch_disable_buzzer(void) {
_watch_disable_tcc();
buzzer_enabled = false;
buzzer_period = NotePeriods[BUZZER_NOTE_A4];
EM_ASM({
if (Module['audioContext']) {
Module['audioContext'].close();
Module['audioContext'] = null;
}
});
}
inline void watch_set_buzzer_on(void) {
// TODO: (a2) hook to UI
void watch_set_buzzer_on(void) {
if (!buzzer_enabled) return;
EM_ASM({
const audioContext = Module['audioContext'];
if (!audioContext) return;
if (!(audioContext._oscillator && audioContext._gain)) {
const oscillator = audioContext.createOscillator();
const gain = audioContext.createGain();
oscillator.type = 'triangle';
oscillator.connect(gain);
gain.connect(audioContext.destination);
oscillator.start(0);
audioContext._oscillator = oscillator;
audioContext._gain = gain;
}
audioContext._oscillator.frequency.value = 1e6/$0;
audioContext._gain.gain.value = 1;
}, buzzer_period);
}
inline void watch_set_buzzer_off(void) {
// TODO: (a2) hook to UI
}
void watch_set_buzzer_off(void) {
if (!buzzer_enabled) return;
// note: the buzzer uses a 1 MHz clock. these values were determined by dividing 1,000,000 by the target frequency.
// i.e. for a 440 Hz tone (A4 on the piano), 1MHz/440Hz = 2273
const uint16_t NotePeriods[108] = {0};
EM_ASM({
const audioContext = Module['audioContext'];
if (audioContext && audioContext._gain) {
audioContext._gain.gain.value = 0;
}
});
}
void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) {
if (note == BUZZER_NOTE_REST) {
watch_set_buzzer_off();
} // else {
// hri_tcc_write_PERBUF_reg(TCC0, NotePeriods[note]);
// hri_tcc_write_CCBUF_reg(TCC0, WATCH_BUZZER_TCC_CHANNEL, NotePeriods[note] / 2);
// watch_set_buzzer_on();
// }
// delay_ms(duration_ms);
// watch_set_buzzer_off();
} else {
watch_set_buzzer_period(NotePeriods[note]);
watch_set_buzzer_on();
}
emscripten_sleep(duration_ms);
watch_set_buzzer_off();
}

1
watch-library/simulator/watch/watch_deepsleep.c
View File

@@ -35,6 +35,7 @@ static uint32_t watch_backup_data[8];
void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback, bool level) {
if (pin == BTN_ALARM) {
watch_enable_external_interrupts();
watch_register_interrupt_callback(pin, callback, level ? INTERRUPT_TRIGGER_RISING : INTERRUPT_TRIGGER_FALLING);
}
}