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Diffstat (limited to 'src/modules/uORB/topics/satellite_info.h')
| -rw-r--r-- | src/modules/uORB/topics/satellite_info.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/modules/uORB/topics/satellite_info.h b/src/modules/uORB/topics/satellite_info.h new file mode 100644 index 000000000..37c2faa96 --- /dev/null +++ b/src/modules/uORB/topics/satellite_info.h @@ -0,0 +1,89 @@ +/**************************************************************************** + * + * Copyright (C) 2014 PX4 Development Team. All rights reserved. + * Author: @author Thomas Gubler <thomasgubler@student.ethz.ch> + * @author Julian Oes <joes@student.ethz.ch> + * @author Lorenz Meier <lm@inf.ethz.ch> + * + * 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 satellite_info.h + * Definition of the GNSS satellite info uORB topic. + */ + +#ifndef TOPIC_SAT_INFO_H_ +#define TOPIC_SAT_INFO_H_ + +#include <stdint.h> +#include "../uORB.h" + +/** + * @addtogroup topics + * @{ + */ + +/** + * GNSS Satellite Info. + */ + +#define SAT_INFO_MAX_SATELLITES 20 + +struct satellite_info_s { + uint64_t timestamp; /**< Timestamp of satellite info */ + uint8_t count; /**< Number of satellites in satellite info */ + uint8_t svid[SAT_INFO_MAX_SATELLITES]; /**< Space vehicle ID [1..255], see scheme below */ + uint8_t used[SAT_INFO_MAX_SATELLITES]; /**< 0: Satellite not used, 1: used for navigation */ + uint8_t elevation[SAT_INFO_MAX_SATELLITES]; /**< Elevation (0: right on top of receiver, 90: on the horizon) of satellite */ + uint8_t azimuth[SAT_INFO_MAX_SATELLITES]; /**< Direction of satellite, 0: 0 deg, 255: 360 deg. */ + uint8_t snr[SAT_INFO_MAX_SATELLITES]; /**< dBHz, Signal to noise ratio of satellite C/N0, range 0..99, zero when not tracking this satellite. */ +}; + +/** + * NAV_SVINFO space vehicle ID (svid) scheme according to u-blox protocol specs + * u-bloxM8-V15_ReceiverDescriptionProtocolSpec_Public_(UBX-13003221).pdf + * + * GPS 1-32 + * SBAS 120-158 + * Galileo 211-246 + * BeiDou 159-163, 33-64 + * QZSS 193-197 + * GLONASS 65-96, 255 + * + */ + +/** + * @} + */ + +/* register this as object request broker structure */ +ORB_DECLARE(satellite_info); + +#endif |