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-rw-r--r--host/examples/CMakeLists.txt1
-rw-r--r--host/examples/transport_hammer.cpp340
2 files changed, 341 insertions, 0 deletions
diff --git a/host/examples/CMakeLists.txt b/host/examples/CMakeLists.txt
index 3c9a3880a..b41d53d11 100644
--- a/host/examples/CMakeLists.txt
+++ b/host/examples/CMakeLists.txt
@@ -27,6 +27,7 @@ SET(example_sources
rx_timed_samples.cpp
test_messages.cpp
test_pps_input.cpp
+ transport_hammer.cpp
tx_bursts.cpp
tx_samples_from_file.cpp
tx_timed_samples.cpp
diff --git a/host/examples/transport_hammer.cpp b/host/examples/transport_hammer.cpp
new file mode 100644
index 000000000..597614050
--- /dev/null
+++ b/host/examples/transport_hammer.cpp
@@ -0,0 +1,340 @@
+//
+// Copyright 2012 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/usrp/multi_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <boost/thread/thread.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+/************************************************************************
+ * RX Samples
+ ************************************************************************/
+
+void rx_hammer(uhd::usrp::multi_usrp::sptr usrp, double rx_rate, bool rx_rand, int rx_low, int rx_high, int rx_step, bool verbose){
+ uhd::set_thread_priority_safe();
+
+ //Set RX sample rate
+ std::cout << boost::format("Setting RX rate: %f Msps") % (rx_rate/1e6) << std::endl;
+ usrp->set_rx_rate(rx_rate);
+ std::cout << boost::format("Actual RX rate: %f Msps") % (usrp->get_rx_rate()/1e6) << std::endl << std::endl;
+
+ if(rx_rand){
+ std::srand((unsigned int) time(NULL));
+
+ while(true){
+ size_t total_num_samps = (rand() % (rx_high - rx_low)) + rx_low;
+
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ //Create a receive streamer
+ uhd::stream_args_t stream_args("fc32");
+ uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args);
+
+ std::cout << boost::format("About to receive %u samples.") % total_num_samps << std::endl;
+
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = true;
+ usrp->issue_stream_cmd(stream_cmd);
+
+ //Metadata will be filled in by recv()
+ uhd::rx_metadata_t md;
+
+ //Allocate buffer to receive with samples
+ std::vector<std::complex<float> > buff(rx_stream->get_max_num_samps());
+ double timeout = 1;
+
+ size_t num_acc_samps = 0; //Number of accumulated samples
+ while(num_acc_samps < total_num_samps){
+ //Receive a single packet
+ size_t num_rx_samps = rx_stream->recv(
+ &buff.front(), buff.size(), md, timeout, true
+ );
+
+ //Handle the error code
+ if(md.error_code == uhd::rx_metadata_t::ERROR_CODE_TIMEOUT){std::cout << "timeout" << std::endl; break;}
+ if(md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE && md.error_code != uhd::rx_metadata_t::ERROR_CODE_OVERFLOW){
+ std::cout << "Error" << std::endl;
+ throw std::runtime_error(str(boost::format(
+ "Unexpected error code 0x%x"
+ ) % md.error_code));
+ }
+ num_acc_samps += num_rx_samps;
+ }
+
+ if(num_acc_samps < total_num_samps) std::cerr << "Received timeout before all samples were received..." << std::endl;
+ else std::cout << boost::format("Successfully received %u samples.") % total_num_samps << std::endl;
+ }
+ }
+ else{
+ for(int i = int(rx_low); i <= int(rx_high); i += rx_step){
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ //Create a receive streamer
+ uhd::stream_args_t stream_args("fc32");
+ uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args);
+
+ //Set up streaming
+ std::cout << boost::format ("About to receive %u samples.") % i << std::endl;
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = i;
+ stream_cmd.stream_now = true;
+ usrp->issue_stream_cmd(stream_cmd);
+
+ //Metadata will be filled in by recv()
+ uhd::rx_metadata_t md;
+
+ //Allocate buffer to receive with samples
+ std::vector<std::complex<float> > buff(rx_stream->get_max_num_samps());
+
+ double timeout = 1;
+
+ size_t num_acc_samps = 0; //Number of accumulated samples
+ while(int(num_acc_samps) < i){
+ //Receive a single packet
+ size_t num_rx_samps = rx_stream->recv(
+ &buff.front(), buff.size(), md, timeout, true
+ );
+
+ //Handle the error code
+ if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_TIMEOUT) break;
+ if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE && md.error_code != uhd::rx_metadata_t::ERROR_CODE_OVERFLOW){
+ throw std::runtime_error(str(boost::format(
+ "Unexpected error code 0x%x"
+ ) % md.error_code));
+ }
+
+ if(verbose) std::cout << boost::format("Received %u samples.") % num_rx_samps << std::endl;
+
+ num_acc_samps += num_rx_samps;
+
+ }
+ std::cout << boost::format("Successfully received %u samples.") % i << std::endl;
+
+ if (int(num_acc_samps) < i) std::cerr << "Timeout received before all samples were received..." << std::endl;
+
+ }
+ }
+}
+
+/************************************************************************
+ * TX Samples
+ ************************************************************************/
+
+void tx_hammer(uhd::usrp::multi_usrp::sptr usrp, double tx_rate, bool tx_rand, int tx_low, int tx_high, int tx_step, double tx_ampl, bool verbose){
+ uhd::set_thread_priority_safe();
+
+ //Set the TX sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (tx_rate / 1e6) << std::endl;
+ usrp->set_tx_rate(tx_rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (usrp->get_tx_rate()/1e6) << std::endl << std::endl;
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ //Create a transmit streamer
+ uhd::stream_args_t stream_args("fc32"); //complex floats
+ uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args);
+
+ //Allocate buffer with data to send
+ std::vector<std::complex<float> > buff(tx_stream->get_max_num_samps(), std::complex<float>(tx_ampl, tx_ampl));
+
+ //Setup metadata for the first packet
+ uhd::tx_metadata_t md;
+ md.start_of_burst = false;
+ md.end_of_burst = false;
+ md.has_time_spec = false;
+
+ if(tx_rand){
+ std::srand((unsigned int) time(NULL));
+
+ while(true){
+ size_t total_num_samps = (rand() % (tx_high - tx_low)) + tx_low;
+ size_t num_acc_samps = 0;
+ float timeout = 1;
+
+ std::cout << boost::format("About to send %u samples.") % total_num_samps << std::endl;
+
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ while(num_acc_samps < total_num_samps){
+ size_t samps_to_send = std::min(total_num_samps - num_acc_samps, buff.size());
+
+ //Send a single packet
+ size_t num_tx_samps = tx_stream->send(&buff.front(), samps_to_send, md, timeout);
+
+ if(num_tx_samps < samps_to_send) std::cerr << "Send timeout..." << std::endl;
+
+ num_acc_samps += num_tx_samps;
+ }
+
+ md.end_of_burst = true;
+ tx_stream->send("", 0, md);
+
+ if(verbose) std::cout << std::endl;
+ std::cout << "Waiting for async burst ACK... " << std::flush;
+ uhd::async_metadata_t async_md;
+ bool got_async_burst_ack = false;
+
+ //Loop through all messages for the ACK packet (may have underflow messages in queue)
+ while (not got_async_burst_ack and usrp->get_device()->recv_async_msg(async_md, timeout)){
+ got_async_burst_ack = (async_md.event_code == uhd::async_metadata_t::EVENT_CODE_BURST_ACK);
+ }
+ std::cout << (got_async_burst_ack? "Success!" : "Failure...") << std::endl;
+
+ std::cout << boost::format("Successfully sent %u samples.") % total_num_samps << std::endl;
+
+ }
+ }
+ else{
+ float timeout = 1;
+
+ for(int i = int(tx_low); i <= int(tx_high); i += tx_step){
+
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ std::cout << boost::format("About to send %u samples.") % i << std::endl;
+ if(verbose) std::cout << std::endl;
+
+ size_t num_acc_samps = 0; //Number of accumulated samples
+ size_t total_num_samps = i;
+
+ while(num_acc_samps < total_num_samps){
+ size_t samps_to_send = std::min(total_num_samps - num_acc_samps, buff.size());
+
+ //Send a single packet
+ size_t num_tx_samps = tx_stream->send(
+ &buff.front(), samps_to_send, md, timeout
+ );
+
+ if (num_tx_samps < samps_to_send) std::cerr << "Send timeout..." << std::endl;
+
+ num_acc_samps += num_tx_samps;
+ }
+
+ //Send a mini EOB packet
+ md.end_of_burst = true;
+ tx_stream->send("", 0, md);
+
+ std::cout << std::endl << "Waiting for async burst ACK... " << std::flush;
+ uhd::async_metadata_t async_md;
+ bool got_async_burst_ack = false;
+ //Loop through all messages for the ACK packet (may have underflow messages in queue)
+ while (not got_async_burst_ack and usrp->get_device()->recv_async_msg(async_md, timeout)){
+ got_async_burst_ack = (async_md.event_code == uhd::async_metadata_t::EVENT_CODE_BURST_ACK);
+ }
+ std::cout << (got_async_burst_ack? "Success!" : "Failure...") << std::endl;
+
+ }
+ //Finished
+ std::cout << "Done!" << std::endl;
+ }
+}
+
+/************************************************************************
+ * Main code + dispatcher
+ ************************************************************************/
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //Variables to be set by program options
+ std::string args;
+ double rx_rate;
+ int rx_low;
+ int rx_high;
+ int rx_step;
+ double tx_rate;
+ int tx_low;
+ int tx_high;
+ int tx_step;
+ double tx_ampl;
+
+ //Set up the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "Print this help message.")
+ ("args", po::value<std::string>(&args)->default_value(""), "Single UHD device address args.")
+ ("rx_rate", po::value<double>(&rx_rate), "RX sample rate.")
+ ("rx_rand", "Specify to use random amounts of RX samples (between rx_low and rx_high values).")
+ ("rx_low", po::value<int>(&rx_low)->default_value(1), "Lowest value of RX samples.")
+ ("rx_high", po::value<int>(&rx_high)->default_value(10000), "Highest value of RX samples.")
+ ("rx_step", po::value<int>(&rx_step)->default_value(10), "Delta between number of collected RX samples.")
+ ("tx_rate", po::value<double>(&tx_rate), "TX sample rate.")
+ ("tx_rand", "Specify to use random amounts of TX samples (between tx_low and tx_high values).")
+ ("tx_low", po::value<int>(&tx_low)->default_value(1), "Lowest value of TX samples.")
+ ("tx_high", po::value<int>(&tx_high)->default_value(10000), "Highest value of TX samples.")
+ ("tx_step", po::value<int>(&tx_step)->default_value(10), "Delta between number of sent TX samples.")
+ ("tx_ampl", po::value<double>(&tx_ampl)->default_value(0.5), "TX amplitude.")
+ ("verbose", "Enables verbosity")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //Set verbose or RX/TX random if requested by user
+ bool rx_rand = vm.count("rx_rand") > 0;
+ bool tx_rand = vm.count("tx_rand") > 0;
+ bool verbose = vm.count("verbose") > 0;
+
+ //Print the help message
+
+ if (vm.count("help") or (vm.count("rx_rate") + vm.count("tx_rate")) == 0){
+ std::cout << boost::format("UHD Transport Hammer %s") % desc << std::endl;
+ std::cout <<
+ " Specify --rx_rate for a receive-only test.\n"
+ " Specify --tx_rate for a transmit-only test.\n"
+ " Specify both options for a full-duplex test.\n"
+ << std::endl;
+ return ~0;
+ }
+
+ //Create a USRP device
+ std::cout << std::endl;
+ uhd::device_addrs_t device_addrs = uhd::device::find(args);
+ std::cout << boost::format("Creating the USRP device with: %s...") % args << std::endl;
+ uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;
+
+ boost::thread_group thread_group;
+
+ //Spawn the receive test thread
+ if (vm.count("rx_rate")){
+ usrp->set_rx_rate(rx_rate);
+ thread_group.create_thread(boost::bind(&rx_hammer, usrp, rx_rate, rx_rand, rx_low, rx_high, rx_step, verbose));
+ }
+
+ //Spawn the transmit test thread
+ if (vm.count("tx_rate")){
+ usrp->set_tx_rate(tx_rate);
+ thread_group.create_thread(boost::bind(&tx_hammer, usrp, tx_rate, tx_rand, tx_low, tx_high, tx_step, tx_ampl, verbose));
+ }
+
+ //Interrupt and join the threads
+ boost::this_thread::sleep(boost::posix_time::microseconds(long(1e6)));
+ thread_group.interrupt_all();
+ thread_group.join_all();
+ //Finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
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