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115 lines
3.0 KiB
115 lines
3.0 KiB
/* Ticker library code is placed under the MIT license |
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* Copyright (c) 2018 Stefan Staub |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included 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, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#include "Ticker.h" |
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Ticker::Ticker(fptr callback, uint32_t timer, uint32_t repeat, resolution_t resolution) { |
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this->resolution = resolution; |
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if (resolution == MICROS) timer = timer * 1000; |
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this->timer = timer; |
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this->repeat = repeat; |
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this->callback = callback; |
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enabled = false; |
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lastTime = 0; |
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counts = 0; |
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} |
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Ticker::~Ticker() {} |
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void Ticker::start() { |
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if (callback == NULL) return; |
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if (resolution == MILLIS) lastTime = millis(); |
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else lastTime = micros(); |
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enabled = true; |
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counts = 0; |
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status = RUNNING; |
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} |
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void Ticker::resume() { |
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if (callback == NULL) return; |
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if (resolution == MILLIS) lastTime = millis() - diffTime; |
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else lastTime = micros() - diffTime; |
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if (status == STOPPED) counts = 0; |
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enabled = true; |
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status = RUNNING; |
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} |
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void Ticker::stop() { |
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enabled = false; |
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counts = 0; |
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status = STOPPED; |
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} |
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void Ticker::pause() { |
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if (resolution == MILLIS) diffTime = millis() - lastTime; |
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else diffTime = micros() - lastTime; |
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enabled = false; |
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status = PAUSED; |
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} |
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void Ticker::update() { |
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if (tick()) callback(); |
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} |
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bool Ticker::tick() { |
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if (!enabled) return false; |
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uint32_t currentTime = (resolution == MILLIS) ? millis() : micros(); |
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if ((currentTime - lastTime) >= timer) { |
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lastTime = currentTime; |
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if (repeat - counts == 1 && counts != 0xFFFFFFFF) { |
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enabled = false; |
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status = STOPPED; |
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} |
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counts++; |
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return true; |
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} |
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return false; |
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} |
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void Ticker::interval(uint32_t timer) { |
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if (resolution == MICROS) timer *= 1000; |
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this->timer = timer; |
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} |
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uint32_t Ticker::interval() { |
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if (resolution == MILLIS) return timer / 1000; |
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else return timer; |
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} |
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uint32_t Ticker::elapsed() { |
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if (resolution == MILLIS) return millis() - lastTime; |
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else return micros() - lastTime; |
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} |
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uint32_t Ticker::remaining() { |
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return timer - elapsed(); |
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} |
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status_t Ticker::state() { |
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return status; |
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} |
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uint32_t Ticker::counter() { |
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return counts; |
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}
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