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//
// 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;
}
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