uhd: support for applying cal corrections B100

host/docs/calibration.rst

@@ -28,11 +28,12 @@ The following RF frontends are supported by the self-calibration utilities:
  * more to come...
 
 ********************************************
-Basic tool usage
+Calibration utilities
 ********************************************
-
 UHD installs the calibration utilities into <install-path>/bin.
-Run the following from the command line:
+**Disconnect** any extrernal hardware from the RF antenna ports,
+and run the following from the command line.
+Each utility will take several minutes to complete.
 ::
 
     uhd_cal_rx_iq_balance --verbose --args=<optional device args>
@@ -43,13 +44,13 @@ See the output given by --help for more advanced options, such as:
 manually choosing the frequency range and step size for the sweeps.
 
 ********************************************
-Calibration files
+Calibration data
 ********************************************
 Calibration files are stored in the user's home/application directory.
 They can easily be moved from machine to another by copying the "cal" directory.
 Re-running a calibration utility will replace the existing calibration file.
 The old calibration file will be renamed so it may be recovered by the user.
 
- * **Unix:** ${HOME}/.uhd/cal 
+ * **Unix:** ${HOME}/.uhd/cal/
- * **Windows:** %APPDATA%\.uhd\cal 
+ * **Windows:** %APPDATA%\\.uhd\\cal\\
 

host/lib/usrp/b100/b100_impl.cpp

@@ -15,6 +15,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //
 
+#include "apply_corrections.hpp"
 #include "b100_impl.hpp"
 #include "b100_ctrl.hpp"
 #include "fpga_regs_standard.h"
@@ -408,6 +409,18 @@ b100_impl::b100_impl(const device_addr_t &device_addr){
         _dboard_iface, _tree->subtree(mb_path / "dboards/A")
     );
 
+    //bind frontend corrections to the dboard freq props
+    const fs_path db_tx_fe_path = mb_path / "dboards" / "A" / "tx_frontends";
+    BOOST_FOREACH(const std::string &name, _tree->list(db_tx_fe_path)){
+        _tree->access<double>(db_tx_fe_path / name / "freq" / "value")
+            .subscribe(boost::bind(&b100_impl::set_tx_fe_corrections, this, _1));
+    }
+    const fs_path db_rx_fe_path = mb_path / "dboards" / "A" / "rx_frontends";
+    BOOST_FOREACH(const std::string &name, _tree->list(db_rx_fe_path)){
+        _tree->access<double>(db_rx_fe_path / name / "freq" / "value")
+            .subscribe(boost::bind(&b100_impl::set_rx_fe_corrections, this, _1));
+    }
+
     //initialize io handling
     this->io_init();
 
@@ -501,3 +514,11 @@ sensor_value_t b100_impl::get_ref_locked(void){
     const bool lock = _clock_ctrl->get_locked();
     return sensor_value_t("Ref", lock, "locked", "unlocked");
 }
+
+void b100_impl::set_rx_fe_corrections(const double lo_freq){
+    apply_rx_fe_corrections(this->get_tree()->subtree("/mboards/0"), "A", lo_freq);
+}
+
+void b100_impl::set_tx_fe_corrections(const double lo_freq){
+    apply_tx_fe_corrections(this->get_tree()->subtree("/mboards/0"), "A", lo_freq);
+}

host/lib/usrp/b100/b100_impl.hpp

@@ -125,6 +125,8 @@ private:
     void clear_fpga_fifo(void);
     void handle_async_message(uhd::transport::managed_recv_buffer::sptr);
     uhd::sensor_value_t get_ref_locked(void);
+    void set_rx_fe_corrections(const double);
+    void set_tx_fe_corrections(const double);
 };
 
 #endif /* INCLUDED_b100_IMPL_HPP */

host/utils/usrp_cal_utils.hpp

@@ -73,7 +73,7 @@ static inline void set_optimum_gain(uhd::usrp::multi_usrp::sptr usrp){
 static inline std::vector<std::complex<float> > gen_table(void){
     std::vector<std::complex<float> > wave_table(wave_table_len);
     for (size_t i = 0; i < wave_table_len; i++){
-        wave_table[i] = std::polar<float>(1.0, (tau*i)/wave_table_len);
+        wave_table[i] = std::complex<float>(std::polar(1.0, (tau*i)/wave_table_len));
     }
     return wave_table;
 }