mirror of https://github.com/ArduPilot/ardupilot
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/*
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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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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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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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#pragma once
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/*
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backend driver for airspeed from PX4Firmware
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*/
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#include <AP_HAL/AP_HAL.h>
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#include <AP_Param/AP_Param.h>
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#include "AP_Airspeed_Backend.h"
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class AP_Airspeed_PX4 : public AP_Airspeed_Backend {
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public:
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// constructor
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AP_Airspeed_PX4(const AP_Float &psi_range) :
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_psi_range(psi_range) {}
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// probe and initialise the sensor
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bool init(void);
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// return the current differential_pressure in Pascal
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bool get_differential_pressure(float &pressure);
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// return the current temperature in degrees C, if available
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bool get_temperature(float &temperature);
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private:
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int _fd = -1;
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uint64_t _last_timestamp;
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float _temperature;
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const AP_Float &_psi_range;
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};
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