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Implement faux-clicky feature

This commit is contained in:
Priyadi Iman Nurcahyo 2017-02-13 08:03:07 +07:00
parent a0c2305bd1
commit c68e596f32
8 changed files with 184 additions and 3 deletions

68
quantum/fauxclicky.c Normal file
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@ -0,0 +1,68 @@
/*
Copyright 2017 Priyadi Iman Nurcahyo
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 2 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 <http://www.gnu.org/licenses/>.
*/
#include <avr/interrupt.h>
#include <avr/io.h>
#include <timer.h>
#include <fauxclicky.h>
#include <stdbool.h>
#include <musical_notes.h>
__attribute__ ((weak))
float fauxclicky_pressed_note[2] = MUSICAL_NOTE(_F3, 2);
__attribute__ ((weak))
float fauxclicky_released_note[2] = MUSICAL_NOTE(_A3, 2);
__attribute__ ((weak))
float fauxclicky_beep_note[2] = MUSICAL_NOTE(_C3, 2);
bool fauxclicky_enabled = true;
uint16_t note_start = 0;
bool note_playing = false;
uint16_t note_period = 0;
void fauxclicky_init()
{
// Set port PC6 (OC3A and /OC4A) as output
DDRC |= _BV(PORTC6);
// TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
}
void fauxclicky_stop()
{
FAUXCLICKY_DISABLE_OUTPUT;
note_playing = false;
}
void fauxclicky_play(float note[2]) {
if (!fauxclicky_enabled) return;
if (note_playing) fauxclicky_stop();
FAUXCLICKY_TIMER_PERIOD = (uint16_t)(((float)F_CPU) / (note[0] * FAUXCLICKY_CPU_PRESCALER));
FAUXCLICKY_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (note[0] * FAUXCLICKY_CPU_PRESCALER)) / 2);
note_playing = true;
note_period = (note[1] / 16) * (60 / (float)FAUXCLICKY_TEMPO) * 100; // check this
note_start = timer_read();
FAUXCLICKY_ENABLE_OUTPUT;
}
void fauxclicky_check() {
if (!note_playing) return;
if (timer_elapsed(note_start) > note_period) {
fauxclicky_stop();
}
}

87
quantum/fauxclicky.h Normal file
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/*
Copyright 2017 Priyadi Iman Nurcahyo
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 2 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 <http://www.gnu.org/licenses/>.
*/
#ifdef AUDIO_ENABLE
#error "AUDIO_ENABLE and FAUXCLICKY_ENABLE cannot be both enabled"
#endif
#include "musical_notes.h"
__attribute__ ((weak))
float fauxclicky_pressed_note[2];
__attribute__ ((weak))
float fauxclicky_released_note[2];
__attribute__ ((weak))
float fauxclicky_beep_note[2];
//
// tempo in BPM
//
#ifndef FAUXCLICKY_TEMPO
#define FAUXCLICKY_TEMPO TEMPO_DEFAULT
#endif
// beep on press
#define FAUXCLICKY_ACTION_PRESS fauxclicky_play(fauxclicky_pressed_note)
// beep on release
#define FAUXCLICKY_ACTION_RELEASE fauxclicky_play(fauxclicky_released_note)
// general purpose beep
#define FAUXCLICKY_BEEP fauxclicky_play(fauxclicky_beep_note)
// enable
#define FAUXCLICKY_ON fauxclicky_enabled = true
// disable
#define FAUXCLICKY_OFF do { \
fauxclicky_enabled = false; \
fauxclicky_stop(); \
} while (0)
//
// pin configuration
//
#ifndef FAUXCLICKY_CPU_PRESCALER
#define FAUXCLICKY_CPU_PRESCALER 8
#endif
#ifndef FAUXCLICKY_ENABLE_OUTPUT
#define FAUXCLICKY_ENABLE_OUTPUT TCCR3A |= _BV(COM3A1);
#endif
#ifndef FAUXCLICKY_DISABLE_OUTPUT
#define FAUXCLICKY_DISABLE_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
#endif
#ifndef FAUXCLICKY_TIMER_PERIOD
#define FAUXCLICKY_TIMER_PERIOD ICR3
#endif
#ifndef FAUXCLICKY_DUTY_CYCLE
#define FAUXCLICKY_DUTY_CYCLE OCR3A
#endif
//
// definitions
//
void fauxclicky_init(void);
void fauxclicky_stop(void);
void fauxclicky_play(float note[2]);
void fauxclicky_check(void);

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@ -65,3 +65,4 @@ MIDI_ENABLE ?= no # MIDI controls
UNICODE_ENABLE ?= no # Unicode
BLUETOOTH_ENABLE ?= no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE ?= no # Audio output on port C6
FAUXCLICKY_ENABLE ?= no # Use buzzer to emulate clicky switches