forked from Archive/PX4-Autopilot
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
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/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file Barometric pressure sensor driver interface.
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*/
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#ifndef _DRV_BARO_H
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#define _DRV_BARO_H
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#include <stdint.h>
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#include <sys/ioctl.h>
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#include "drv_orb_dev.h"
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#define BARO_DEVICE_PATH "/dev/baro"
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/**
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* baro report structure. Reads from the device must be in multiples of this
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* structure.
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*/
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struct baro_report {
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float pressure;
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float altitude;
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float temperature;
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uint64_t timestamp;
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};
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/*
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* ObjDev tag for raw barometer data.
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*/
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ORB_DECLARE(sensor_baro);
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/*
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* ioctl() definitions
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*/
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#define _BAROIOCBASE (_SNIOCBASE + 0x10)
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#define _BAROIOC(_n) (_IOC(_BAROIOCBASE, _n))
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/** set the driver polling rate to (arg) Hz, or one of the BARO_POLLRATE constants */
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#define BAROIOCSPOLLRATE _BAROIOC(0)
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#define BARO_POLLRATE_MANUAL 1000000 /**< poll when read */
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#define BARO_POLLRATE_EXTERNAL 1000001 /**< poll when device signals ready */
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/** set the internal queue depth to (arg) entries, must be at least 1 */
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#define BAROIOCSQUEUEDEPTH _BAROIOC(1)
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/** set the report format to (arg); zero is the standard, 1-10 are reserved, all others are driver-specific. */
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#define BAROIOCSREPORTFORMAT _BAROIOC(2)
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#endif /* _DRV_BARO_H */
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