diff options
Diffstat (limited to 'src/output/USRPTime.h')
| -rw-r--r-- | src/output/USRPTime.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/src/output/USRPTime.h b/src/output/USRPTime.h index 51ca800..bc862fd 100644 --- a/src/output/USRPTime.h +++ b/src/output/USRPTime.h @@ -2,7 +2,7 @@ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the Queen in Right of Canada (Communications Research Center Canada) - Copyright (C) 2017 + Copyright (C) 2018 Matthias P. Braendli, matthias.braendli@mpb.li http://opendigitalradio.org @@ -54,16 +54,24 @@ DESCRIPTION: namespace Output { +struct gnss_stats_t { + int num_sv = 0; // Number of Satellite Vehicles used + bool holdover = false; // True if LEA-M8F uses its internal time reference +}; + class USRPTime { public: USRPTime( uhd::usrp::multi_usrp::sptr usrp, SDRDeviceConfig& conf); // Verifies the GPSDO state, that the device time is ok. - // Returns true if all ok. + // Returns true if all ok. Needs to be called so the device + // time gets properly set. // Should be called more often than the gps_fix_check_interval bool verify_time(void); + gnss_stats_t get_gnss_stats(void) const; + // Wait time in seconds to get fix static const int initial_gps_fix_wait = 180; @@ -72,10 +80,8 @@ class USRPTime { private: enum class gps_state_e { - /* At startup, the LEA-M8F GPSDO gets issued a hotstart request to - * make sure we will not sync time on a PPS edge that is generated - * while the GPSDO is in holdover. In the bootup state, we wait for - * the first PPS after hotstart, and then sync time. + /* In the bootup state, we wait for correct time lock and + * the first PPS, and then sync time. */ bootup, @@ -93,6 +99,8 @@ class USRPTime { gps_state_e gps_state = gps_state_e::bootup; int num_checks_without_gps_fix = 1; + gnss_stats_t gnss_stats; + using timepoint_t = std::chrono::time_point<std::chrono::steady_clock>; timepoint_t time_last_check; @@ -107,6 +115,9 @@ class USRPTime { void set_usrp_time_from_localtime(void); void set_usrp_time_from_pps(void); + + bool check_gps_timelock(void); + bool check_gps_locked(void); }; } // namespace Output |