gpsdo: added "gpsdo" clock and time source options

When an on-board GPSDO is detected, "gpsdo" is added to the options.

2 files changed, 8 insertions, 2 deletions

diff --git a/host/lib/usrp/cores/time64_core_200.cpp b/host/lib/usrp/cores/time64_core_200.cpp
index e460d1106..11b310362 100644
--- a/host/lib/usrp/cores/time64_core_200.cpp
+++ b/host/lib/usrp/cores/time64_core_200.cpp
@@ -56,6 +56,10 @@ public:
         if (_mimo_delay_cycles != 0) _sources.push_back("mimo");
     }
 
+    void enable_gpsdo(void){
+        _sources.push_back("gpsdo");
+    }
+
     void set_tick_rate(const double rate){
         _tick_rate = rate;
     }
@@ -100,7 +104,7 @@ public:
         assert_has(_sources, source, "time source");
 
         //setup pps flags
-        if (source == "external"){
+        if (source == "external" or source == "gpsdo"){
             _iface->poke32(REG_TIME64_FLAGS, FLAG_TIME64_PPS_SMA | FLAG_TIME64_PPS_POSEDGE);
         }
         else if (source == "_external_"){
diff --git a/host/lib/usrp/cores/time64_core_200.hpp b/host/lib/usrp/cores/time64_core_200.hpp
index 7571573a5..315f2ba67 100644
--- a/host/lib/usrp/cores/time64_core_200.hpp
+++ b/host/lib/usrp/cores/time64_core_200.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2011 Ettus Research LLC
+// Copyright 2011-2012 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -42,6 +42,8 @@ public:
         const size_t mimo_delay_cycles = 0 // 0 means no-mimo
     );
 
+    virtual void enable_gpsdo(void) = 0;
+
     virtual void set_tick_rate(const double rate) = 0;
 
     virtual uhd::time_spec_t get_time_now(void) = 0;