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Diffstat (limited to 'host/test/tune_helper_test.cpp')
| -rw-r--r-- | host/test/tune_helper_test.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/host/test/tune_helper_test.cpp b/host/test/tune_helper_test.cpp new file mode 100644 index 000000000..570f47293 --- /dev/null +++ b/host/test/tune_helper_test.cpp @@ -0,0 +1,174 @@ +// +// Copyright 2010 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 <boost/test/unit_test.hpp> +#include <uhd/usrp/tune_helper.hpp> +#include <uhd/usrp/subdev_props.hpp> +#include <uhd/usrp/dsp_props.hpp> +#include <iostream> + +using namespace uhd; +using namespace uhd::usrp; + +/*********************************************************************** + * Dummy properties objects + **********************************************************************/ +class dummy_subdev : public wax::obj{ +public: + dummy_subdev(double resolution): + _resolution(resolution) + { + /* NOP */ + } +private: + void get(const wax::obj &key, wax::obj &val){ + switch(key.as<subdev_prop_t>()){ + + case SUBDEV_PROP_FREQ: + val = _freq; + return; + + case SUBDEV_PROP_USE_LO_OFFSET: + val = false; + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } + } + + void set(const wax::obj &key, const wax::obj &val){ + switch(key.as<subdev_prop_t>()){ + case SUBDEV_PROP_FREQ: + _freq = _resolution*int(val.as<double>()/_resolution); + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } + } + + double _freq, _resolution; +}; + +class dummy_subdev_basic : public wax::obj{ +private: + void get(const wax::obj &key, wax::obj &val){ + switch(key.as<subdev_prop_t>()){ + + case SUBDEV_PROP_FREQ: + val = double(0.0); //always zero + return; + + case SUBDEV_PROP_USE_LO_OFFSET: + val = false; + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } + } + + void set(const wax::obj &key, const wax::obj &){ + switch(key.as<subdev_prop_t>()){ + case SUBDEV_PROP_FREQ: + // do nothing + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } + } +}; + +class dummy_dsp : public wax::obj{ +public: + dummy_dsp(double codec_rate): + _codec_rate(codec_rate) + { + /* NOP */ + } +private: + void get(const wax::obj &key, wax::obj &val){ + switch(key.as<dsp_prop_t>()){ + case DSP_PROP_CODEC_RATE: + val = _codec_rate; + return; + + case DSP_PROP_FREQ_SHIFT: + val = _freq_shift; + return; + + default: UHD_THROW_PROP_GET_ERROR(); + } + } + + void set(const wax::obj &key, const wax::obj &val){ + switch(key.as<dsp_prop_t>()){ + case DSP_PROP_FREQ_SHIFT: + _freq_shift = val.as<double>(); + return; + + default: UHD_THROW_PROP_SET_ERROR(); + } + } + + double _codec_rate, _freq_shift; +}; + +/*********************************************************************** + * Test cases + **********************************************************************/ +static const double tolerance = 0.001; + +BOOST_AUTO_TEST_CASE(test_tune_helper_rx){ + dummy_subdev subdev(1e6); + dummy_dsp dsp(100e6); + + std::cout << "Testing tune helper RX automatic LO offset" << std::endl; + tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.3451e9); + std::cout << tr.to_pp_string() << std::endl; + BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.345e9, tolerance); + BOOST_CHECK_CLOSE(tr.actual_dsp_freq, -100e3, tolerance); + + double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link()); + BOOST_CHECK_CLOSE(freq_derived, 2.3451e9, tolerance); +} + +BOOST_AUTO_TEST_CASE(test_tune_helper_tx){ + dummy_subdev subdev(1e6); + dummy_dsp dsp(100e6); + + std::cout << "Testing tune helper TX automatic LO offset" << std::endl; + tune_result_t tr = tune_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 2.3451e9); + std::cout << tr.to_pp_string() << std::endl; + BOOST_CHECK_CLOSE(tr.actual_inter_freq, 2.345e9, tolerance); + BOOST_CHECK_CLOSE(tr.actual_dsp_freq, 100e3, tolerance); + + double freq_derived = derive_freq_from_tx_subdev_and_dsp(subdev.get_link(), dsp.get_link()); + BOOST_CHECK_CLOSE(freq_derived, 2.3451e9, tolerance); +} + +BOOST_AUTO_TEST_CASE(test_tune_helper_rx_nyquist){ + dummy_subdev_basic subdev; + dummy_dsp dsp(100e6); + + std::cout << "Testing tune helper RX dummy basic board" << std::endl; + tune_result_t tr = tune_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link(), 55e6); + std::cout << tr.to_pp_string() << std::endl; + BOOST_CHECK_CLOSE(tr.actual_inter_freq, 0.0, tolerance); + BOOST_CHECK_CLOSE(tr.actual_dsp_freq, 45e6, tolerance); + + double freq_derived = derive_freq_from_rx_subdev_and_dsp(subdev.get_link(), dsp.get_link()); + BOOST_CHECK_CLOSE(freq_derived, -45e6, tolerance); +} |