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Diffstat (limited to 'host/lib/usrp/tune_helper.cpp')
| -rw-r--r-- | host/lib/usrp/tune_helper.cpp | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/host/lib/usrp/tune_helper.cpp b/host/lib/usrp/tune_helper.cpp deleted file mode 100644 index 264e6c04b..000000000 --- a/host/lib/usrp/tune_helper.cpp +++ /dev/null @@ -1,147 +0,0 @@ -// -// Copyright 2010-2011 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 -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. -// - -#include <uhd/usrp/tune_helper.hpp> -#include <uhd/usrp/subdev_props.hpp> -#include <uhd/usrp/dsp_props.hpp> -#include <uhd/usrp/dboard_iface.hpp> //unit_t -#include <uhd/utils/algorithm.hpp> -#include <cmath> - -using namespace uhd; -using namespace uhd::usrp; - -/*********************************************************************** - * Tune Helper Functions - **********************************************************************/ -static tune_result_t tune_xx_subdev_and_dsp( - dboard_iface::unit_t unit, - wax::obj subdev, wax::obj dsp, - const tune_request_t &tune_request -){ - wax::obj subdev_freq_proxy = subdev[SUBDEV_PROP_FREQ]; - wax::obj dsp_freq_proxy = dsp[DSP_PROP_FREQ_SHIFT]; - - //------------------------------------------------------------------ - //-- calculate the LO offset, only used with automatic policy - //------------------------------------------------------------------ - double lo_offset = 0.0; - if (subdev[SUBDEV_PROP_USE_LO_OFFSET].as<bool>()){ - //If the local oscillator will be in the passband, use an offset. - //But constrain the LO offset by the width of the filter bandwidth. - double rate = dsp[DSP_PROP_HOST_RATE].as<double>(); - double bw = subdev[SUBDEV_PROP_BANDWIDTH].as<double>(); - if (bw > rate) lo_offset = std::min((bw - rate)/2, rate/2); - } - - //------------------------------------------------------------------ - //-- set the RF frequency depending upon the policy - //------------------------------------------------------------------ - double target_rf_freq = 0.0; - switch (tune_request.rf_freq_policy){ - case tune_request_t::POLICY_AUTO: - target_rf_freq = tune_request.target_freq + lo_offset; - subdev_freq_proxy = target_rf_freq; - break; - - case tune_request_t::POLICY_MANUAL: - target_rf_freq = tune_request.rf_freq; - subdev_freq_proxy = target_rf_freq; - break; - - case tune_request_t::POLICY_NONE: break; //does not set - } - double actual_rf_freq = subdev_freq_proxy.as<double>(); - - //------------------------------------------------------------------ - //-- calculate the dsp freq, only used with automatic policy - //------------------------------------------------------------------ - double target_dsp_freq = actual_rf_freq - tune_request.target_freq; - - //invert the sign on the dsp freq given the following conditions - if (unit == dboard_iface::UNIT_TX) target_dsp_freq *= -1.0; - - //------------------------------------------------------------------ - //-- set the dsp frequency depending upon the dsp frequency policy - //------------------------------------------------------------------ - switch (tune_request.dsp_freq_policy){ - case tune_request_t::POLICY_AUTO: - dsp_freq_proxy = target_dsp_freq; - break; - - case tune_request_t::POLICY_MANUAL: - target_dsp_freq = tune_request.dsp_freq; - dsp_freq_proxy = target_dsp_freq; - break; - - case tune_request_t::POLICY_NONE: break; //does not set - } - double actual_dsp_freq = dsp_freq_proxy.as<double>(); - - //------------------------------------------------------------------ - //-- load and return the tune result - //------------------------------------------------------------------ - tune_result_t tune_result; - tune_result.target_rf_freq = target_rf_freq; - tune_result.actual_rf_freq = actual_rf_freq; - tune_result.target_dsp_freq = target_dsp_freq; - tune_result.actual_dsp_freq = actual_dsp_freq; - return tune_result; -} - -static double derive_freq_from_xx_subdev_and_dsp( - dboard_iface::unit_t unit, wax::obj subdev, wax::obj dsp -){ - //extract actual dsp and IF frequencies - double actual_rf_freq = subdev[SUBDEV_PROP_FREQ].as<double>(); - double actual_dsp_freq = dsp[DSP_PROP_FREQ_SHIFT].as<double>(); - - //invert the sign on the dsp freq given the following conditions - if (unit == dboard_iface::UNIT_TX) actual_dsp_freq *= -1.0; - - return actual_rf_freq - actual_dsp_freq; -} - -/*********************************************************************** - * RX Tune - **********************************************************************/ -tune_result_t usrp::tune_rx_subdev_and_dsp( - wax::obj subdev, wax::obj ddc, const tune_request_t &tune_request -){ - return tune_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc, tune_request); -} - -double usrp::derive_freq_from_rx_subdev_and_dsp( - wax::obj subdev, wax::obj ddc -){ - return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_RX, subdev, ddc); -} - -/*********************************************************************** - * TX Tune - **********************************************************************/ -tune_result_t usrp::tune_tx_subdev_and_dsp( - wax::obj subdev, wax::obj duc, const tune_request_t &tune_request -){ - return tune_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc, tune_request); -} - -double usrp::derive_freq_from_tx_subdev_and_dsp( - wax::obj subdev, wax::obj duc -){ - return derive_freq_from_xx_subdev_and_dsp(dboard_iface::UNIT_TX, subdev, duc); -} |