StaticPressure.hpp
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/****************************************************************************
*
* Copyright (c) 2021 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#pragma once
#include "UavcanPublisherBase.hpp"
#include <uavcan/equipment/air_data/StaticPressure.hpp>
#include <uORB/SubscriptionCallback.hpp>
#include <uORB/topics/sensor_baro.h>
namespace uavcannode
{
class StaticPressure :
public UavcanPublisherBase,
public uORB::SubscriptionCallbackWorkItem,
private uavcan::Publisher<uavcan::equipment::air_data::StaticPressure>
{
public:
StaticPressure(px4::WorkItem *work_item, uavcan::INode &node) :
UavcanPublisherBase(uavcan::equipment::air_data::StaticPressure::DefaultDataTypeID),
uORB::SubscriptionCallbackWorkItem(work_item, ORB_ID(sensor_baro)),
uavcan::Publisher<uavcan::equipment::air_data::StaticPressure>(node)
{}
void PrintInfo() override
{
if (uORB::SubscriptionCallbackWorkItem::advertised()) {
printf("\t%s -> %s:%d\n",
uORB::SubscriptionCallbackWorkItem::get_topic()->o_name,
uavcan::equipment::air_data::StaticPressure::getDataTypeFullName(),
uavcan::equipment::air_data::StaticPressure::DefaultDataTypeID);
}
}
void BroadcastAnyUpdates() override
{
// sensor_baro -> uavcan::equipment::air_data::StaticPressure
sensor_baro_s baro;
if (uORB::SubscriptionCallbackWorkItem::update(&baro)) {
uavcan::equipment::air_data::StaticPressure static_pressure{};
static_pressure.static_pressure = baro.pressure * 100; // millibar -> pascals
uavcan::Publisher<uavcan::equipment::air_data::StaticPressure>::broadcast(static_pressure);
// ensure callback is registered
uORB::SubscriptionCallbackWorkItem::registerCallback();
}
}
};
} // namespace uavcannode