mirror of https://github.com/midilab/uClock
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124 lines
3.3 KiB
124 lines
3.3 KiB
/*!
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* @file uClock.cpp
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* Project BPM clock generator for Arduino
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* @brief A Library to implement BPM clock tick calls using hardware timer1 interruption. Tested on ATmega168/328, ATmega16u4/32u4 and ATmega2560.
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* Derived work from mididuino MidiClock class. (c) 2008 - 2011 - Manuel Odendahl - wesen@ruinwesen.com
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* @version 0.8
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* @author Romulo Silva
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* @date 10/06/17
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* @license MIT - (c) 2017 - Romulo Silva - contact@midilab.co
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __U_CLOCK_H__
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#define __U_CLOCK_H__
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#include <Arduino.h>
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#include <inttypes.h>
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namespace umodular { namespace clock {
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class uClockClass {
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public:
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void (*onClock96PPQNCallback)(uint32_t * tick);
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void (*onClock32PPQNCallback)(uint32_t * tick);
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void (*onClock16PPQNCallback)(uint32_t * tick);
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void (*onClockStartCallback)();
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void (*onClockStopCallback)();
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uint32_t div96th_counter;
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uint32_t div32th_counter;
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uint32_t div16th_counter;
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uint8_t mod6_counter;
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uint8_t inmod6_counter;
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uint16_t interval;
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uint16_t counter;
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uint16_t last_clock;
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uint16_t last_interval;
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uint32_t indiv96th_counter;
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uint16_t pll_x;
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uint16_t tempo;
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enum {
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PAUSED = 0,
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STARTING,
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STARTED
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} state;
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enum {
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OFF = 0,
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INTERNAL_CLOCK,
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EXTERNAL_CLOCK
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} mode;
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uClockClass();
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void setClock96PPQNOutput(void (*callback)(uint32_t * tick)) {
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onClock96PPQNCallback = callback;
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}
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void setClock32PPQNOutput(void (*callback)(uint32_t * tick)) {
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onClock32PPQNCallback = callback;
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}
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void setClock16PPQNOutput(void (*callback)(uint32_t * tick)) {
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onClock16PPQNCallback = callback;
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}
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void setOnClockStartOutput(void (*callback)()) {
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onClockStartCallback = callback;
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}
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void setOnClockStopOutput(void (*callback)()) {
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onClockStopCallback = callback;
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}
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void init();
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void handleClock();
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void handleStart();
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void handleStop();
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void handleTimerInt();
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// external class control
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void start();
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void stop();
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void pause();
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void setTempo(uint16_t tempo);
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uint16_t getTempo();
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// External timming control
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void clockMe();
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void shuffle();
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void tap();
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};
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} } // end namespace umodular::clock
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extern umodular::clock::uClockClass uClock;
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extern "C" {
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extern volatile uint16_t _clock;
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}
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#endif /* __U_CLOCK_H__ */
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