RawAirData.hpp 3.62 KB
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#pragma once

#include "UavcanPublisherBase.hpp"

#include <uavcan/equipment/air_data/RawAirData.hpp>

#include <uORB/SubscriptionCallback.hpp>
#include <uORB/topics/differential_pressure.h>

namespace uavcannode
{

class RawAirData :
	public UavcanPublisherBase,
	public uORB::SubscriptionCallbackWorkItem,
	private uavcan::Publisher<uavcan::equipment::air_data::RawAirData>
{
public:
	RawAirData(px4::WorkItem *work_item, uavcan::INode &node) :
		UavcanPublisherBase(uavcan::equipment::air_data::RawAirData::DefaultDataTypeID),
		uORB::SubscriptionCallbackWorkItem(work_item, ORB_ID(differential_pressure)),
		uavcan::Publisher<uavcan::equipment::air_data::RawAirData>(node)
	{}

	void PrintInfo() override
	{
		if (uORB::SubscriptionCallbackWorkItem::advertised()) {
			printf("\t%s -> %s:%d\n",
			       uORB::SubscriptionCallbackWorkItem::get_topic()->o_name,
			       uavcan::equipment::air_data::RawAirData::getDataTypeFullName(),
			       uavcan::equipment::air_data::RawAirData::DefaultDataTypeID);
		}
	}

	void BroadcastAnyUpdates() override
	{
		// differential_pressure -> uavcan::equipment::air_data::RawAirData
		differential_pressure_s diff_press;

		if (uORB::SubscriptionCallbackWorkItem::update(&diff_press)) {
			uavcan::equipment::air_data::RawAirData raw_air_data{};

			// raw_air_data.static_pressure =
			raw_air_data.differential_pressure = diff_press.differential_pressure_raw_pa;
			// raw_air_data.static_pressure_sensor_temperature =
			raw_air_data.differential_pressure_sensor_temperature = diff_press.temperature - CONSTANTS_ABSOLUTE_NULL_CELSIUS;
			raw_air_data.static_air_temperature = diff_press.temperature - CONSTANTS_ABSOLUTE_NULL_CELSIUS;
			// raw_air_data.pitot_temperature
			// raw_air_data.covariance
			uavcan::Publisher<uavcan::equipment::air_data::RawAirData>::broadcast(raw_air_data);

			// ensure callback is registered
			uORB::SubscriptionCallbackWorkItem::registerCallback();
		}
	}
};
} // namespace uavcannode