ugps, branch master

CMakeLists: update cmake minimum required version to 3.10

2025-10-03T21:20:46Z

New cmake version 4.0 requires at least 3.5 version as the minimum required version with it increased to 3.10 in to-be-released cmake versions. Set the minimum required version to 3.10 to future-proof for future cmake version. Suggested-by: Hannu Nyman Signed-off-by: Christian Marangi

ugps: add quality measurement parameters

2024-02-14T09:51:09Z

The current version of ugps does not report any quality parameters for GPS receiver fixation. Considering the positioning error, which can be up to hundreds of meters, it is helpful to know how accurately the GPS determines the position. This PR supports determining the number of satellites and the HDOP (Horizontal Dilution of Precision) parameter to address this. The GPGGA sentence is already parsed in the code, so it just extends the amount of data it reads. Fixes: #2 (ugps miss GPS quality parameters) Signed-off-by: Zbynek Kocur Signed-off-by: Petr Štetiar [whitespace fixes, long line wrap]

main.c: -S does not take any options

2023-01-27T12:07:47Z

Fixes: fb87d0fd051b (ugps: add baud rate command line option) Signed-off-by: John Crispin

ugps: add baud rate command line option

2022-02-19T10:28:37Z

currently, gps device baud rate is hardcoded so ugps might not work with devices that baud rate is configured to be different than 4800. Signed-off-by: Wojciech Jowsa

add support for multi GNSS solutions

2021-06-19T13:46:50Z

Signed-off-by: John Crispin

ubus: display only available information

2021-06-07T22:07:28Z

GPS receivers may not provide all possible data, some take more time and some are irrelevant for some applications and are never sent by some GPS receivers (eg. equipment found in maritime context doesn't report elevation). Only populate attributes for which data is actually available. Signed-off-by: Daniel Golle

nmea: parse $GPGLL sentences for position

2021-06-07T22:03:02Z

Some GPS receivers do not send $GPGGA sentence. Parse latitude and longitude also from $GPGLL sentences. Signed-off-by: Daniel Golle

nmea: parse $GPZDA sentences for date/time

2021-06-07T22:02:09Z

Some GPS receivers only send $GPZDA sentence for date/time. Parse it and refactor NMEA-0138 code to avoid code duplication. Signed-off-by: Daniel Golle

ugps: fix 64-bit time_t

2020-08-29T10:06:15Z

The abs function takes a 32-bit int, which can cause truncation. Fixes compilation error: error: absolute value function 'abs' given an argu> if ((sec < 0) || (abs(cur.tv_sec - tv.tv_sec) > MAX_TIME_OFFSET)) { Signed-off-by: Rosen Penev

nmea: make sure date is valid

2020-05-26T13:29:07Z

GPS time without date was previously used to set system date: Tue Oct 10 11:48:21 2000 user.info kernel: [ 108.786639] ugps: system time differs from GPS time by more than 5 seconds. Using 2000-10-10T10:48:21 UTC as the new time Tue Oct 10 11:49:27 2000 user.info kernel: [ 174.794699] ugps: system time differs from GPS time by more than 5 seconds. Using 2020-05-26T10:49:27 UTC as the new time Fix this by ignoring incomplete dates and wait for complete time information before adjusting system date/time. Signed-off-by: Daniel Golle