mirror of https://github.com/ArduPilot/ardupilot
51 lines
1.4 KiB
C++
51 lines
1.4 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 class for airspeed
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*/
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#include <AP_Common/AP_Common.h>
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#include <AP_HAL/AP_HAL.h>
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class AP_Airspeed;
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class AP_Airspeed_Backend {
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public:
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AP_Airspeed_Backend(AP_Airspeed &frontend);
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virtual ~AP_Airspeed_Backend();
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// probe and initialise the sensor
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virtual bool init(void) = 0;
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// return the current differential_pressure in Pascal
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virtual bool get_differential_pressure(float &pressure) = 0;
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// return the current temperature in degrees C, if available
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virtual bool get_temperature(float &temperature) = 0;
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protected:
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int8_t get_pin(void) const;
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float get_psi_range(void) const;
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uint8_t get_bus(void) const;
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// semaphore for access to shared frontend data
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AP_HAL::Semaphore *sem;
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private:
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AP_Airspeed &frontend;
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};
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