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-rw-r--r--host/lib/include/uhdlib/usrp/common/ad9361_ctrl.hpp6
-rw-r--r--host/lib/usrp/common/ad9361_ctrl.cpp20
-rw-r--r--host/lib/usrp/common/ad9361_driver/ad9361_device.cpp23
-rw-r--r--host/lib/usrp/common/ad9361_driver/ad9361_device.h3
-rw-r--r--host/lib/usrp/common/ad936x_manager.cpp61
5 files changed, 80 insertions, 33 deletions
diff --git a/host/lib/include/uhdlib/usrp/common/ad9361_ctrl.hpp b/host/lib/include/uhdlib/usrp/common/ad9361_ctrl.hpp
index 1acbe6463..411de6f81 100644
--- a/host/lib/include/uhdlib/usrp/common/ad9361_ctrl.hpp
+++ b/host/lib/include/uhdlib/usrp/common/ad9361_ctrl.hpp
@@ -70,16 +70,16 @@ public:
}
}
- //! get the freq range for the frontend which
+ //! get the freq range
static uhd::meta_range_t get_rf_freq_range(void)
{
return uhd::meta_range_t(50e6, 6e9);
}
//! get the filter range for the frontend which
- static uhd::meta_range_t get_bw_filter_range(const std::string &/*which*/)
+ static uhd::meta_range_t get_bw_filter_range(void)
{
- return uhd::meta_range_t(200e3, 56e6);
+ return uhd::meta_range_t(ad9361_device_t::AD9361_MIN_BW, ad9361_device_t::AD9361_MAX_BW);
}
//! get the clock rate range for the frontend
diff --git a/host/lib/usrp/common/ad9361_ctrl.cpp b/host/lib/usrp/common/ad9361_ctrl.cpp
index ea3fdc416..2b6821fc0 100644
--- a/host/lib/usrp/common/ad9361_ctrl.cpp
+++ b/host/lib/usrp/common/ad9361_ctrl.cpp
@@ -233,10 +233,24 @@ public:
double set_bw_filter(const std::string &which, const double bw)
{
- boost::lock_guard<boost::mutex> lock(_mutex);
-
ad9361_device_t::direction_t direction = _get_direction_from_antenna(which);
- return _device.set_bw_filter(direction, bw);
+ double actual_bw = bw;
+
+ {
+ boost::lock_guard<boost::mutex> lock(_mutex);
+ actual_bw = _device.set_bw_filter(direction, bw);
+ }
+
+ const double min_bw = ad9361_device_t::AD9361_MIN_BW;
+ const double max_bw = ad9361_device_t::AD9361_MAX_BW;
+ if (bw < min_bw or bw > max_bw)
+ {
+ UHD_LOGGER_WARNING("AD936X") << boost::format(
+ "The requested bandwidth %f MHz is out of range (%f - %f MHz).\n"
+ "The bandwidth has been forced to %f MHz.\n"
+ ) % (bw/1e6) % (min_bw/1e6) % (max_bw/1e6) % (actual_bw/1e6);
+ }
+ return actual_bw;
}
std::vector<std::string> get_filter_names(const std::string &which)
diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
index 6558595d9..cbb720894 100644
--- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
+++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp
@@ -85,7 +85,8 @@ const double ad9361_device_t::AD9361_MIN_CLOCK_RATE = 220e3;
const double ad9361_device_t::AD9361_MAX_CLOCK_RATE = 61.44e6;
const double ad9361_device_t::AD9361_CAL_VALID_WINDOW = 100e6;
// Max bandwdith is due to filter rolloff in analog filter stage
-const double ad9361_device_t::AD9361_RECOMMENDED_MAX_BANDWIDTH = 56e6;
+const double ad9361_device_t::AD9361_MIN_BW = 200e3;
+const double ad9361_device_t::AD9361_MAX_BW = 56e6;
/* Startup RF frequencies */
const double ad9361_device_t::DEFAULT_RX_FREQ = 800e6;
@@ -2409,20 +2410,20 @@ double ad9361_device_t::set_bw_filter(direction_t direction, const double rf_bw)
{
//both low pass filters are programmed to the same bw. However, their cutoffs will differ.
//Together they should create the requested bb bw.
- double set_analog_bb_bw = 0;
+ //Select rf_bw if it is between AD9361_MIN_BW & AD9361_MAX_BW.
+ const double clipped_bw = std::min(std::max(rf_bw, AD9361_MIN_BW), AD9361_MAX_BW);
if(direction == RX)
{
- _rx_bb_lp_bw = _calibrate_baseband_rx_analog_filter(rf_bw); //returns bb bw
- _rx_tia_lp_bw = _calibrate_rx_TIAs(rf_bw);
- _rx_analog_bw = _rx_bb_lp_bw;
- set_analog_bb_bw = _rx_analog_bw;
+ _rx_bb_lp_bw = _calibrate_baseband_rx_analog_filter(clipped_bw); //returns bb bw
+ _rx_tia_lp_bw = _calibrate_rx_TIAs(clipped_bw);
+ _rx_analog_bw = clipped_bw;
} else {
- _tx_bb_lp_bw = _calibrate_baseband_tx_analog_filter(rf_bw); //returns bb bw
- _tx_sec_lp_bw = _calibrate_secondary_tx_filter(rf_bw);
- _tx_analog_bw = _tx_bb_lp_bw;
- set_analog_bb_bw = _tx_analog_bw;
+ _tx_bb_lp_bw = _calibrate_baseband_tx_analog_filter(clipped_bw); //returns bb bw
+ _tx_sec_lp_bw = _calibrate_secondary_tx_filter(clipped_bw);
+ _tx_analog_bw = clipped_bw;
}
- return (2.0 * set_analog_bb_bw);
+
+ return (clipped_bw);
}
void ad9361_device_t::_set_fir_taps(direction_t direction, chain_t chain, const std::vector<int16_t>& taps)
diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.h b/host/lib/usrp/common/ad9361_driver/ad9361_device.h
index 5bc3d2aee..3f32ba8a8 100644
--- a/host/lib/usrp/common/ad9361_driver/ad9361_device.h
+++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.h
@@ -160,7 +160,8 @@ public:
static const double AD9361_MAX_CLOCK_RATE;
static const double AD9361_MIN_CLOCK_RATE;
static const double AD9361_CAL_VALID_WINDOW;
- static const double AD9361_RECOMMENDED_MAX_BANDWIDTH;
+ static const double AD9361_MIN_BW;
+ static const double AD9361_MAX_BW;
static const double DEFAULT_RX_FREQ;
static const double DEFAULT_TX_FREQ;
diff --git a/host/lib/usrp/common/ad936x_manager.cpp b/host/lib/usrp/common/ad936x_manager.cpp
index fa964c66c..8fd2a919d 100644
--- a/host/lib/usrp/common/ad936x_manager.cpp
+++ b/host/lib/usrp/common/ad936x_manager.cpp
@@ -19,7 +19,7 @@ using namespace uhd::usrp;
* Default values
***************************************************************************/
const double ad936x_manager::DEFAULT_GAIN = 0;
-const double ad936x_manager::DEFAULT_BANDWIDTH = 56e6;
+const double ad936x_manager::DEFAULT_BANDWIDTH = ad9361_device_t::AD9361_MAX_BW;
const double ad936x_manager::DEFAULT_TICK_RATE = 16e6;
const double ad936x_manager::DEFAULT_FREQ = 100e6; // Hz
const uint32_t ad936x_manager::DEFAULT_DECIM = 128;
@@ -47,8 +47,12 @@ public:
));
}
for (size_t i = 1; i <= _n_frontends; i++) {
- _rx_frontends.push_back(str(boost::format("RX%d") % i));
- _tx_frontends.push_back(str(boost::format("TX%d") % i));
+ const std::string rx_fe_str = str(boost::format("RX%d") % i);
+ const std::string tx_fe_str = str(boost::format("TX%d") % i);
+ _rx_frontends.push_back(rx_fe_str);
+ _tx_frontends.push_back(tx_fe_str);
+ _bw[rx_fe_str] = 0.0;
+ _bw[tx_fe_str] = 0.0;
}
}
@@ -186,14 +190,27 @@ public:
bool check_bandwidth(double rate, const std::string dir)
{
- if (rate > _codec_ctrl->get_bw_filter_range(dir).stop()) {
+ double bw = _bw[dir == "Rx" ? "RX1" : "TX1"];
+ if (bw == 0.) //0 indicates bandwidth is default value.
+ {
+ double max_bw = ad9361_device_t::AD9361_MAX_BW;
+ double min_bw = ad9361_device_t::AD9361_MIN_BW;
+ if (rate > max_bw)
+ {
+ UHD_LOGGER_WARNING("AD936X")
+ << "Selected " << dir << " sample rate (" << (rate/1e6) << " MHz) is greater than\n"
+ << "analog frontend filter bandwidth (" << (max_bw/1e6) << " MHz)."
+ ;
+ }
+ else if (rate < min_bw)
+ {
UHD_LOGGER_WARNING("AD936X")
- << "Selected " << dir << " bandwidth (" << (rate/1e6) << " MHz) exceeds\n"
- << "analog frontend filter bandwidth (" << (_codec_ctrl->get_bw_filter_range(dir).stop()/1e6) << " MHz)."
+ << "Selected " << dir << " sample rate (" << (rate/1e6) << " MHz) is less than\n"
+ << "analog frontend filter bandwidth (" << (min_bw/1e6) << " MHz)."
;
- return false;
+ }
}
- return true;
+ return (rate <= bw);
}
void populate_frontend_subtree(
@@ -236,15 +253,17 @@ public:
// Analog Bandwidths
subtree->create<double>("bandwidth/value")
- .set(ad936x_manager::DEFAULT_BANDWIDTH)
- .set_coercer([this, key](const double bw){
- return this->_codec_ctrl->set_bw_filter(key, bw);
- })
+ .set(DEFAULT_BANDWIDTH)
+ .set_coercer([this,key](double bw) {
+ return set_bw_filter(key, bw);
+ }
+ )
;
subtree->create<meta_range_t>("bandwidth/range")
- .set_publisher([key](){
- return ad9361_ctrl::get_bw_filter_range(key);
- })
+ .set_publisher([key]() {
+ return ad9361_ctrl::get_bw_filter_range();
+ }
+ )
;
// LO Tuning
@@ -321,6 +340,18 @@ private:
std::vector<std::string> _rx_frontends;
//! List of valid TX frontend names (TX1, TX2)
std::vector<std::string> _tx_frontends;
+
+ //! Current bandwidths
+ std::map<std::string,double> _bw;
+
+ //! Function to set bandwidth so it is tracked here
+ double set_bw_filter(const std::string& which, const double bw)
+ {
+ double actual_bw = _codec_ctrl->set_bw_filter(which, bw);
+ _bw[which] = actual_bw;
+ return actual_bw;
+ }
+
}; /* class ad936x_manager_impl */
ad936x_manager::sptr ad936x_manager::make(
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-30 15:27:09 +0000