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-rw-r--r--host/lib/usrp/multi_usrp.cpp28
1 files changed, 22 insertions, 6 deletions
diff --git a/host/lib/usrp/multi_usrp.cpp b/host/lib/usrp/multi_usrp.cpp
index 49cbe522f..d0141108e 100644
--- a/host/lib/usrp/multi_usrp.cpp
+++ b/host/lib/usrp/multi_usrp.cpp
@@ -65,6 +65,18 @@ static void do_tune_freq_warning_message(
}
}
+static meta_range_t make_overall_tune_range(
+ const meta_range_t &fe_range,
+ const meta_range_t &dsp_range,
+ const double bw
+){
+ return meta_range_t(
+ fe_range.start() + std::max(dsp_range.start(), -bw),
+ fe_range.stop() + std::min(dsp_range.stop(), bw),
+ dsp_range.step()
+ );
+}
+
/***********************************************************************
* Gain helper functions
**********************************************************************/
@@ -442,9 +454,11 @@ public:
}
freq_range_t get_rx_freq_range(size_t chan){
- meta_range_t range = _tree->access<meta_range_t>(rx_rf_fe_root(chan) / "freq" / "range").get();
- meta_range_t dsp_range = _tree->access<meta_range_t>(rx_dsp_root(chan) / "freq" / "range").get();
- return meta_range_t(range.start() + dsp_range.start(), range.stop() + dsp_range.stop(), dsp_range.step());
+ return make_overall_tune_range(
+ _tree->access<meta_range_t>(rx_rf_fe_root(chan) / "freq" / "range").get(),
+ _tree->access<meta_range_t>(rx_dsp_root(chan) / "freq" / "range").get(),
+ this->get_rx_bandwidth(chan)
+ );
}
void set_rx_gain(double gain, const std::string &name, size_t chan){
@@ -550,9 +564,11 @@ public:
}
freq_range_t get_tx_freq_range(size_t chan){
- meta_range_t range = _tree->access<meta_range_t>(tx_rf_fe_root(chan) / "freq" / "range").get();
- meta_range_t dsp_range = _tree->access<meta_range_t>(tx_dsp_root(chan) / "freq" / "range").get();
- return meta_range_t(range.start() + dsp_range.start(), range.stop() + dsp_range.stop(), dsp_range.step());
+ return make_overall_tune_range(
+ _tree->access<meta_range_t>(tx_rf_fe_root(chan) / "freq" / "range").get(),
+ _tree->access<meta_range_t>(tx_dsp_root(chan) / "freq" / "range").get(),
+ this->get_tx_bandwidth(chan)
+ );
}
void set_tx_gain(double gain, const std::string &name, size_t chan){