4 files changed, 26 insertions, 12 deletions
diff --git a/host/lib/usrp/dboard/db_sbx_common.cpp b/host/lib/usrp/dboard/db_sbx_common.cpp
index d1cd5b373..3cfc1e95f 100644
--- a/host/lib/usrp/dboard/db_sbx_common.cpp
+++ b/host/lib/usrp/dboard/db_sbx_common.cpp
@@ -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
@@ -213,8 +213,8 @@ void sbx_xcvr::update_atr(void){
     int tx_pga0_iobits = tx_pga0_gain_to_iobits(_tx_gains["PGA0"]);
     int rx_lo_lpf_en = (_rx_lo_freq == sbx_enable_rx_lo_filter.clip(_rx_lo_freq)) ? LO_LPF_EN : 0;
     int tx_lo_lpf_en = (_tx_lo_freq == sbx_enable_tx_lo_filter.clip(_tx_lo_freq)) ? LO_LPF_EN : 0;
-    int rx_ld_led = get_locked(dboard_iface::UNIT_RX).to_bool() ? 0 : RX_LED_LD;
-    int tx_ld_led = get_locked(dboard_iface::UNIT_TX).to_bool() ? 0 : TX_LED_LD;
+    int rx_ld_led = _rx_lo_lock_cache ? 0 : RX_LED_LD;
+    int tx_ld_led = _tx_lo_lock_cache ? 0 : TX_LED_LD;
     int rx_ant_led = _rx_ant == "TX/RX" ? RX_LED_RX1RX2 : 0;
     int tx_ant_led = _tx_ant == "TX/RX" ? 0 : TX_LED_TXRX;
 
@@ -283,8 +283,14 @@ void sbx_xcvr::set_tx_ant(const std::string &ant){
  **********************************************************************/
 double sbx_xcvr::set_lo_freq(dboard_iface::unit_t unit, double target_freq) {
     const double actual = db_actual->set_lo_freq(unit, target_freq);
-    if (unit == dboard_iface::UNIT_RX) _rx_lo_freq = actual;
-    if (unit == dboard_iface::UNIT_TX) _tx_lo_freq = actual;
+    if (unit == dboard_iface::UNIT_RX){
+        _rx_lo_lock_cache = false;
+        _rx_lo_freq = actual;
+    }
+    if (unit == dboard_iface::UNIT_TX){
+        _tx_lo_lock_cache = false;
+        _tx_lo_freq = actual;
+    }
     update_atr();
     return actual;
 }
@@ -292,6 +298,13 @@ double sbx_xcvr::set_lo_freq(dboard_iface::unit_t unit, double target_freq) {
 
 sensor_value_t sbx_xcvr::get_locked(dboard_iface::unit_t unit) {
     const bool locked = (this->get_iface()->read_gpio(unit) & LOCKDET_MASK) != 0;
+
+    if (unit == dboard_iface::UNIT_RX) _rx_lo_lock_cache = locked;
+    if (unit == dboard_iface::UNIT_TX) _tx_lo_lock_cache = locked;
+
+    //write the new lock cache setting to atr regs
+    update_atr();
+
     return sensor_value_t("LO", locked, "locked", "unlocked");
 }
 
diff --git a/host/lib/usrp/dboard/db_sbx_common.hpp b/host/lib/usrp/dboard/db_sbx_common.hpp
index 501a7f1fc..2a0e83115 100644
--- a/host/lib/usrp/dboard/db_sbx_common.hpp
+++ b/host/lib/usrp/dboard/db_sbx_common.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
@@ -138,6 +138,7 @@ protected:
     uhd::dict<std::string, double> _tx_gains, _rx_gains;
     double       _rx_lo_freq, _tx_lo_freq;
     std::string  _tx_ant, _rx_ant;
+    bool _rx_lo_lock_cache, _tx_lo_lock_cache;
 
     void set_rx_ant(const std::string &ant);
     void set_tx_ant(const std::string &ant);
diff --git a/host/lib/usrp/dboard/db_sbx_version3.cpp b/host/lib/usrp/dboard/db_sbx_version3.cpp
index 6e20d5882..14045789f 100644
--- a/host/lib/usrp/dboard/db_sbx_version3.cpp
+++ b/host/lib/usrp/dboard/db_sbx_version3.cpp
@@ -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
@@ -139,8 +139,8 @@ double sbx_xcvr::sbx_version3::set_lo_freq(dboard_iface::unit_t unit, double tar
 
     UHD_LOGV(often)
         << boost::format("SBX Intermediates: ref=%0.2f, outdiv=%f, fbdiv=%f") % (ref_freq*(1+int(D))/(R*(1+int(T)))) % double(RFdiv*2) % double(N + double(FRAC)/double(MOD)) << std::endl
-        << boost::format("SBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d, LD=%s"
-            ) % R % BS % N % FRAC % MOD % T % D % RFdiv % self_base->get_locked(unit).to_pp_string() << std::endl
+        << boost::format("SBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d"
+            ) % R % BS % N % FRAC % MOD % T % D % RFdiv << std::endl
         << boost::format("SBX Frequencies (MHz): REQ=%0.2f, ACT=%0.2f, VCO=%0.2f, PFD=%0.2f, BAND=%0.2f"
             ) % (target_freq/1e6) % (actual_freq/1e6) % (vco_freq/1e6) % (pfd_freq/1e6) % (pfd_freq/BS/1e6) << std::endl;
 
diff --git a/host/lib/usrp/dboard/db_sbx_version4.cpp b/host/lib/usrp/dboard/db_sbx_version4.cpp
index c8128d5f4..12bc9b76e 100644
--- a/host/lib/usrp/dboard/db_sbx_version4.cpp
+++ b/host/lib/usrp/dboard/db_sbx_version4.cpp
@@ -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
@@ -142,8 +142,8 @@ double sbx_xcvr::sbx_version4::set_lo_freq(dboard_iface::unit_t unit, double tar
 
     UHD_LOGV(often)
         << boost::format("SBX Intermediates: ref=%0.2f, outdiv=%f, fbdiv=%f") % (ref_freq*(1+int(D))/(R*(1+int(T)))) % double(RFdiv*2) % double(N + double(FRAC)/double(MOD)) << std::endl
-        << boost::format("SBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d, LD=%s"
-            ) % R % BS % N % FRAC % MOD % T % D % RFdiv % self_base->get_locked(unit).to_pp_string() << std::endl
+        << boost::format("SBX tune: R=%d, BS=%d, N=%d, FRAC=%d, MOD=%d, T=%d, D=%d, RFdiv=%d"
+            ) % R % BS % N % FRAC % MOD % T % D % RFdiv << std::endl
         << boost::format("SBX Frequencies (MHz): REQ=%0.2f, ACT=%0.2f, VCO=%0.2f, PFD=%0.2f, BAND=%0.2f"
             ) % (target_freq/1e6) % (actual_freq/1e6) % (vco_freq/1e6) % (pfd_freq/1e6) % (pfd_freq/BS/1e6) << std::endl;