mirror of
https://github.com/eried/portapack-mayhem.git
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70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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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 2, or (at your option)
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* 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "temperature_logger.hpp"
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#include "radio.hpp"
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#include <algorithm>
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void TemperatureLogger::second_tick() {
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sample_phase++;
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if( sample_phase >= sample_interval ) {
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push_sample(read_sample());
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}
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}
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size_t TemperatureLogger::size() const {
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return std::min(capacity(), samples_count);
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}
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size_t TemperatureLogger::capacity() const {
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return samples.size();
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}
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std::vector<TemperatureLogger::sample_t> TemperatureLogger::history() const {
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std::vector<sample_t> result;
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const auto n = size();
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result.resize(n);
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// Copy the last N samples from the buffer, since new samples are added at the end.
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std::copy(samples.cend() - n, samples.cend(), result.data());
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return result;
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}
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TemperatureLogger::sample_t TemperatureLogger::read_sample() {
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// MAX2837 does not return a valid temperature if in "shutdown" mode.
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return radio::second_if.temp_sense() & 0x1f;
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}
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void TemperatureLogger::push_sample(const TemperatureLogger::sample_t sample) {
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// Started out building a pseudo-FIFO, then got lazy.
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// Shift samples: samples[1:] -> samples[0:-1]
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// New sample goes into samples[-1]
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std::copy(samples.cbegin() + 1, samples.cend(), samples.begin());
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samples.back() = sample;
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samples_count++;
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sample_phase = 0;
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}
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