From 8a365179eafdf3aea98e60ab9f5882b200d4c759 Mon Sep 17 00:00:00 2001 From: px4dev Date: Sat, 4 Aug 2012 15:12:36 -0700 Subject: Fresh import of the PX4 firmware sources. --- apps/drivers/drv_baro.h | 83 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 apps/drivers/drv_baro.h (limited to 'apps/drivers/drv_baro.h') diff --git a/apps/drivers/drv_baro.h b/apps/drivers/drv_baro.h new file mode 100644 index 000000000..4cfb35454 --- /dev/null +++ b/apps/drivers/drv_baro.h @@ -0,0 +1,83 @@ +/**************************************************************************** + * + * Copyright (C) 2012 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. + * + ****************************************************************************/ + +/** + * @file Barometric pressure sensor driver interface. + */ + +#ifndef _DRV_BARO_H +#define _DRV_BARO_H + +#include +#include + +#include "drv_orb_dev.h" + +#define BARO_DEVICE_PATH "/dev/baro" + +/** + * baro report structure. Reads from the device must be in multiples of this + * structure. + */ +struct baro_report { + float pressure; + float altitude; + float temperature; + uint64_t timestamp; +}; + +/* + * ObjDev tag for raw barometer data. + */ +ORB_DECLARE(sensor_baro); + +/* + * ioctl() definitions + */ + +#define _BAROIOCBASE (_SNIOCBASE + 0x10) +#define _BAROIOC(_n) (_IOC(_BAROIOCBASE, _n)) + +/** set the driver polling rate to (arg) Hz, or one of the BARO_POLLRATE constants */ +#define BAROIOCSPOLLRATE _BAROIOC(0) + +#define BARO_POLLRATE_MANUAL 1000000 /**< poll when read */ +#define BARO_POLLRATE_EXTERNAL 1000001 /**< poll when device signals ready */ + +/** set the internal queue depth to (arg) entries, must be at least 1 */ +#define BAROIOCSQUEUEDEPTH _BAROIOC(1) + +/** set the report format to (arg); zero is the standard, 1-10 are reserved, all others are driver-specific. */ +#define BAROIOCSREPORTFORMAT _BAROIOC(2) + +#endif /* _DRV_BARO_H */ -- cgit v1.2.3