From c68e596f32c5d450a714627871408407e9988ef7 Mon Sep 17 00:00:00 2001 From: Priyadi Iman Nurcahyo Date: Mon, 13 Feb 2017 08:03:07 +0700 Subject: Implement faux-clicky feature --- quantum/fauxclicky.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 quantum/fauxclicky.c (limited to 'quantum/fauxclicky.c') diff --git a/quantum/fauxclicky.c b/quantum/fauxclicky.c new file mode 100644 index 0000000000..13273e7058 --- /dev/null +++ b/quantum/fauxclicky.c @@ -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 . +*/ + +#include +#include +#include +#include +#include +#include + +__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(); + } +} -- cgit v1.2.3