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//
// Copyright 2014 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 "rx_stream_terminator.hpp"
#include "radio_ctrl_impl.hpp"
#include "../transport/super_recv_packet_handler.hpp"
#include <uhd/utils/log.hpp>
#include <uhd/rfnoc/source_node_ctrl.hpp>
#include <boost/format.hpp>
using namespace uhd::rfnoc;
size_t rx_stream_terminator::_count = 0;
rx_stream_terminator::rx_stream_terminator() :
_term_index(_count),
_samp_rate(rate_node_ctrl::RATE_UNDEFINED),
_tick_rate(tick_node_ctrl::RATE_UNDEFINED)
{
_count++;
}
std::string rx_stream_terminator::unique_id() const
{
return str(boost::format("RX Terminator %d") % _term_index);
}
void rx_stream_terminator::set_tx_streamer(bool, const size_t)
{
/* nop */
}
void rx_stream_terminator::set_rx_streamer(bool active, const size_t)
{
// TODO this is identical to source_node_ctrl::set_rx_streamer() -> factor out
UHD_RFNOC_BLOCK_TRACE() << "rx_stream_terminator::set_rx_streamer() " << active;
for(const node_ctrl_base::node_map_pair_t upstream_node: _upstream_nodes) {
source_node_ctrl::sptr curr_upstream_block_ctrl =
boost::dynamic_pointer_cast<source_node_ctrl>(upstream_node.second.lock());
if (curr_upstream_block_ctrl) {
curr_upstream_block_ctrl->set_rx_streamer(
active,
get_upstream_port(upstream_node.first)
);
}
_rx_streamer_active[upstream_node.first] = active;
}
}
void rx_stream_terminator::handle_overrun(boost::weak_ptr<uhd::rx_streamer> streamer, const size_t)
{
std::vector<boost::shared_ptr<uhd::rfnoc::radio_ctrl_impl> > upstream_radio_nodes =
find_upstream_node<uhd::rfnoc::radio_ctrl_impl>();
const size_t n_radios = upstream_radio_nodes.size();
if (n_radios == 0) {
return;
}
UHD_RFNOC_BLOCK_TRACE() << "rx_stream_terminator::handle_overrun()" ;
boost::shared_ptr<uhd::transport::sph::recv_packet_streamer> my_streamer =
boost::dynamic_pointer_cast<uhd::transport::sph::recv_packet_streamer>(streamer.lock());
if (not my_streamer) return; //If the rx_streamer has expired then overflow handling makes no sense.
bool in_continuous_streaming_mode = true;
int num_channels = 0;
for(const boost::shared_ptr<uhd::rfnoc::radio_ctrl_impl> &node: upstream_radio_nodes) {
num_channels += node->get_active_rx_ports().size();
for(const size_t port: node->get_active_rx_ports()) {
in_continuous_streaming_mode = in_continuous_streaming_mode && node->in_continuous_streaming_mode(port);
}
}
if (num_channels == 0) {
return;
}
if (num_channels == 1 and in_continuous_streaming_mode) {
std::vector<size_t> active_rx_ports = upstream_radio_nodes[0]->get_active_rx_ports();
if (active_rx_ports.empty()) {
return;
}
const size_t port = active_rx_ports[0];
upstream_radio_nodes[0]->issue_stream_cmd(stream_cmd_t::STREAM_MODE_START_CONTINUOUS, port);
return;
}
/////////////////////////////////////////////////////////////
// MIMO overflow recovery time
/////////////////////////////////////////////////////////////
for(const boost::shared_ptr<uhd::rfnoc::radio_ctrl_impl> &node: upstream_radio_nodes) {
for(const size_t port: node->get_active_rx_ports()) {
// check all the ports on all the radios
node->rx_ctrl_clear_cmds(port);
node->issue_stream_cmd(stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS, port);
}
}
//flush transports
my_streamer->flush_all(0.001); // TODO flushing will probably have to go away.
//restart streaming on all channels
if (in_continuous_streaming_mode) {
stream_cmd_t stream_cmd(stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
stream_cmd.stream_now = false;
stream_cmd.time_spec = upstream_radio_nodes[0]->get_time_now() + time_spec_t(0.05);
for(const boost::shared_ptr<uhd::rfnoc::radio_ctrl_impl> &node: upstream_radio_nodes) {
for(const size_t port: node->get_active_rx_ports()) {
node->issue_stream_cmd(stream_cmd, port);
}
}
}
}
rx_stream_terminator::~rx_stream_terminator()
{
UHD_RFNOC_BLOCK_TRACE() << "rx_stream_terminator::~rx_stream_terminator() " ;
set_rx_streamer(false, 0);
}
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