90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <chrono>
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#include <thread>
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class Clock {
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public:
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static uint64_t ticks(uint32_t frequency = Clock::frequency) {
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return (Clock::nanos() - Clock::startup.count()) / (1000000000ULL / frequency);
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}
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static uint64_t nanosToTicks(uint64_t ns, uint32_t frequency = Clock::frequency) {
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return ns / (1000000000ULL / frequency);
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}
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// Time acceleration compensated
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static uint64_t ticksToNanos(uint64_t tick, uint32_t frequency = Clock::frequency) {
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return (tick * (1000000000ULL / frequency)) / Clock::time_multiplier;
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}
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static void setFrequency(uint32_t freq) {
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Clock::frequency = freq;
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}
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// Time Acceleration compensated
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static uint64_t nanos() {
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auto now = std::chrono::high_resolution_clock::now().time_since_epoch();
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return (now.count() - Clock::startup.count()) * Clock::time_multiplier;
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}
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static uint64_t micros() {
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return Clock::nanos() / 1000;
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}
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static uint64_t millis() {
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return Clock::micros() / 1000;
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}
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static double seconds() {
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return Clock::nanos() / 1000000000.0;
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}
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static void delayCycles(uint64_t cycles) {
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std::this_thread::sleep_for(std::chrono::nanoseconds( (1000000000L / frequency) * cycles) / Clock::time_multiplier );
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}
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static void delayMicros(uint64_t micros) {
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std::this_thread::sleep_for(std::chrono::microseconds( micros ) / Clock::time_multiplier);
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}
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static void delayMillis(uint64_t millis) {
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std::this_thread::sleep_for(std::chrono::milliseconds( millis ) / Clock::time_multiplier);
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}
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static void delaySeconds(double secs) {
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std::this_thread::sleep_for(std::chrono::duration<double, std::milli>(secs * 1000) / Clock::time_multiplier);
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}
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// Will reduce timer resolution increasing likelihood of overflows
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static void setTimeMultiplier(double tm) {
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Clock::time_multiplier = tm;
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}
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private:
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static std::chrono::nanoseconds startup;
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static uint32_t frequency;
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static double time_multiplier;
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};
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