BikeComputer/static_scheduling/reset_device.cpp

// Copyright 2022 Haute école d'ingénierie et d'architecture de Fribourg
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/****************************************************************************
 * @file reset_device.cpp
 * @author Rémi Heredero <remi@heredero.ch>
 * @author Yann Sierro <yannsierro.pro@gmail.com>
 *
 * @brief Reset Device implementation (static scheduling)
 * @date 2024-11-12
 * @version 0.1.0
 ****************************************************************************/

#include "reset_device.hpp"

// from disco_h747i/wrappers
#include <chrono>

#include "joystick.hpp"
#include "mbed_trace.h"

#if defined(TARGET_DISCO_H747I)
#define PUSH_BUTTON BUTTON1
static constexpr uint8_t kPolarityPressed = 1;
#endif

#if MBED_CONF_MBED_TRACE_ENABLE
#define TRACE_GROUP "ResetDevice"
#endif  // MBED_CONF_MBED_TRACE_ENABLE

namespace static_scheduling {

static constexpr std::chrono::microseconds kTaskRunTime = 100000us;

ResetDevice::ResetDevice(Timer& timer) : _timer(timer), _resetButton(PUSH_BUTTON) {
    _resetButton.rise(callback(this, &ResetDevice::onRise));
}

bool ResetDevice::checkReset() {
    std::chrono::microseconds initialTime = _timer.elapsed_time();
    std::chrono::microseconds elapsedTime = std::chrono::microseconds::zero();
    // we bound the change to one increment/decrement per call
    bool isPressed = false;
    while (elapsedTime < kTaskRunTime) {
        if (!isPressed) {
            isPressed = _resetButton.read() == kPolarityPressed;
        }
        elapsedTime = _timer.elapsed_time() - initialTime;
    }

    return isPressed;
}

std::chrono::microseconds ResetDevice::getPressTime() { return _pressTime; }

void ResetDevice::onRise() { _pressTime = _timer.elapsed_time(); }

}  // namespace static_scheduling