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Diffstat (limited to 'host/examples/test_async_messages.cpp')
| -rw-r--r-- | host/examples/test_async_messages.cpp | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/host/examples/test_async_messages.cpp b/host/examples/test_async_messages.cpp new file mode 100644 index 000000000..e02bc5f40 --- /dev/null +++ b/host/examples/test_async_messages.cpp @@ -0,0 +1,208 @@ +// +// 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 <uhd/utils/thread_priority.hpp> +#include <uhd/utils/safe_main.hpp> +#include <uhd/utils/static.hpp> +#include <uhd/usrp/simple_usrp.hpp> +#include <boost/program_options.hpp> +#include <boost/format.hpp> +#include <complex> +#include <iostream> + +namespace po = boost::program_options; + +static const size_t async_to_ms = 100; + +/*! + * Test that no messages are received: + * Send a burst of many samples that will fragment internally. + * We expect to not get any async messages. + */ +void test_no_async_message(uhd::usrp::simple_usrp::sptr sdev){ + uhd::device::sptr dev = sdev->get_device(); + std::cout << "Test no async message... " << std::flush; + + uhd::tx_metadata_t md; + md.start_of_burst = true; + md.end_of_burst = true; + md.has_time_spec = false; + + //3 times max-sps guarantees a SOB, no burst, and EOB packet + std::vector<std::complex<float> > buff(dev->get_max_send_samps_per_packet()*3); + + dev->send( + &buff.front(), buff.size(), md, + uhd::io_type_t::COMPLEX_FLOAT32, + uhd::device::SEND_MODE_FULL_BUFF + ); + + uhd::async_metadata_t async_md; + if (dev->recv_async_msg(async_md, async_to_ms)){ + std::cout << boost::format( + "failed:\n" + " Got unexpected event code 0x%x.\n" + ) % async_md.event_code << std::endl; + //clear the async messages + while (dev->recv_async_msg(async_md, 0)); + } + else{ + std::cout << boost::format( + "success:\n" + " Did not get an async message.\n" + ) << std::endl; + } +} + +/*! + * Test the underflow message: + * Send a start of burst packet with no following end of burst. + * We expect to get an underflow(within a burst) async message. + */ +void test_underflow_message(uhd::usrp::simple_usrp::sptr sdev){ + uhd::device::sptr dev = sdev->get_device(); + std::cout << "Test underflow message... " << std::flush; + + uhd::tx_metadata_t md; + md.start_of_burst = true; + md.end_of_burst = false; + md.has_time_spec = false; + + dev->send(NULL, 0, md, + uhd::io_type_t::COMPLEX_FLOAT32, + uhd::device::SEND_MODE_FULL_BUFF + ); + + uhd::async_metadata_t async_md; + if (not dev->recv_async_msg(async_md, async_to_ms)){ + std::cout << boost::format( + "failed:\n" + " Async message recv timed out.\n" + ) << std::endl; + return; + } + + switch(async_md.event_code){ + case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW: + std::cout << boost::format( + "success:\n" + " Got event code underflow message.\n" + ) << std::endl; + break; + + default: + std::cout << boost::format( + "failed:\n" + " Got unexpected event code 0x%x.\n" + ) % async_md.event_code << std::endl; + } +} + +/*! + * Test the time error message: + * Send a burst packet that occurs at a time in the past. + * We expect to get a time error async message. + */ +void test_time_error_message(uhd::usrp::simple_usrp::sptr sdev){ + uhd::device::sptr dev = sdev->get_device(); + std::cout << "Test time error message... " << std::flush; + + uhd::tx_metadata_t md; + md.start_of_burst = true; + md.end_of_burst = true; + md.has_time_spec = true; + md.time_spec = uhd::time_spec_t(100.0); //send at 100s + + sdev->set_time_now(uhd::time_spec_t(200.0)); //time at 200s + + dev->send(NULL, 0, md, + uhd::io_type_t::COMPLEX_FLOAT32, + uhd::device::SEND_MODE_FULL_BUFF + ); + + uhd::async_metadata_t async_md; + if (not dev->recv_async_msg(async_md, async_to_ms)){ + std::cout << boost::format( + "failed:\n" + " Async message recv timed out.\n" + ) << std::endl; + return; + } + + switch(async_md.event_code){ + case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR: + std::cout << boost::format( + "success:\n" + " Got event code time error message.\n" + ) << std::endl; + break; + + default: + std::cout << boost::format( + "failed:\n" + " Got unexpected event code 0x%x.\n" + ) % async_md.event_code << std::endl; + } +} + +int UHD_SAFE_MAIN(int argc, char *argv[]){ + uhd::set_thread_priority_safe(); + + //variables to be set by po + std::string args; + double rate; + + //setup the program options + po::options_description desc("Allowed options"); + desc.add_options() + ("help", "help message") + ("args", po::value<std::string>(&args)->default_value(""), "simple uhd device address args") + ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples") + ; + po::variables_map vm; + po::store(po::parse_command_line(argc, argv, desc), vm); + po::notify(vm); + + //print the help message + if (vm.count("help")){ + std::cout << boost::format("UHD Test Async Messages %s") % desc << std::endl; + return ~0; + } + + //create a usrp device + std::cout << std::endl; + std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl; + uhd::usrp::simple_usrp::sptr sdev = uhd::usrp::simple_usrp::make(args); + std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl; + + //set the tx sample rate + std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl; + sdev->set_tx_rate(rate); + std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl; + + //------------------------------------------------------------------ + // begin asyc messages test + //------------------------------------------------------------------ + test_no_async_message(sdev); + test_underflow_message(sdev); + test_time_error_message(sdev); + + //finished + std::cout << std::endl << "Done!" << std::endl << std::endl; + + return 0; +} |