114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
/* 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_v2.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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{
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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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if (resolution == MILLIS) {
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if ((millis() - lastTime) >= timer) {
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lastTime = millis();
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if (repeat - counts == 1) enabled = false;
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counts++;
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return true;
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}
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}
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else {
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if ((micros() - lastTime) >= timer) {
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lastTime = micros();
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if (repeat - counts == 1) enabled = false;
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counts++;
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return true;
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}
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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 = timer * 1000;
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this->timer = 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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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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