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//
// Copyright 2019 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/rfnoc/defaults.hpp>
#include <uhdlib/rfnoc/node_accessor.hpp>
#include <uhdlib/rfnoc/rfnoc_tx_streamer.hpp>
#include <atomic>
using namespace uhd;
using namespace uhd::rfnoc;
const std::string STREAMER_ID = "TxStreamer";
static std::atomic<uint64_t> streamer_inst_ctr;
rfnoc_tx_streamer::rfnoc_tx_streamer(const size_t num_chans,
const uhd::stream_args_t stream_args)
: tx_streamer_impl<chdr_tx_data_xport>(num_chans, stream_args)
, _unique_id(STREAMER_ID + "#" + std::to_string(streamer_inst_ctr++))
, _stream_args(stream_args)
{
// No block to which to forward properties or actions
set_prop_forwarding_policy(forwarding_policy_t::DROP);
set_action_forwarding_policy(forwarding_policy_t::DROP);
// Initialize properties
_scaling_out.reserve(num_chans);
_samp_rate_out.reserve(num_chans);
_tick_rate_out.reserve(num_chans);
_type_out.reserve(num_chans);
_mtu_out.reserve(num_chans);
for (size_t i = 0; i < num_chans; i++) {
_register_props(i, stream_args.otw_format);
}
for (size_t i = 0; i < num_chans; i++) {
prop_ptrs_t mtu_resolver_out;
for (auto& mtu_prop : _mtu_out) {
mtu_resolver_out.insert(&mtu_prop);
}
//property_t<size_t>* mtu_out = &_mtu_out.back();
add_property_resolver({&_mtu_out[i]}, std::move(mtu_resolver_out),
[&mtu_out = _mtu_out[i], i, this]() {
RFNOC_LOG_TRACE("Calling resolver for `mtu_out'@" << i);
if (mtu_out.is_valid()) {
const size_t mtu = mtu_out.get();
// If the current MTU changes, set the same value for all chans
if (mtu < tx_streamer_impl::get_mtu()) {
for (auto& prop : this->_mtu_out) {
prop.set(mtu);
}
tx_streamer_impl::set_mtu(mtu);
}
}
});
}
node_accessor_t node_accessor;
node_accessor.init_props(this);
}
std::string rfnoc_tx_streamer::get_unique_id() const
{
return _unique_id;
}
size_t rfnoc_tx_streamer::get_num_input_ports() const
{
return 0;
}
size_t rfnoc_tx_streamer::get_num_output_ports() const
{
return get_num_channels();
}
const uhd::stream_args_t& rfnoc_tx_streamer::get_stream_args() const
{
return _stream_args;
}
bool rfnoc_tx_streamer::check_topology(
const std::vector<size_t>& connected_inputs,
const std::vector<size_t>& connected_outputs)
{
// Check that all channels are connected
if (connected_outputs.size() != get_num_output_ports()) {
return false;
}
// Call base class to check that connections are valid
return node_t::check_topology(connected_inputs, connected_outputs);
}
void rfnoc_tx_streamer::connect_channel(
const size_t channel, chdr_tx_data_xport::uptr xport)
{
UHD_ASSERT_THROW(channel < _mtu_out.size());
// Update MTU property based on xport limits
const size_t mtu = xport->get_max_payload_size();
set_property<size_t>(PROP_KEY_MTU, mtu, {res_source_info::OUTPUT_EDGE, channel});
tx_streamer_impl<chdr_tx_data_xport>::connect_channel(channel, std::move(xport));
}
void rfnoc_tx_streamer::_register_props(const size_t chan, const std::string& otw_format)
{
// Create actual properties and store them
_scaling_out.push_back(property_t<double>(
PROP_KEY_SCALING, {res_source_info::OUTPUT_EDGE, chan}));
_samp_rate_out.push_back(property_t<double>(
PROP_KEY_SAMP_RATE, {res_source_info::OUTPUT_EDGE, chan}));
_tick_rate_out.push_back(property_t<double>(
PROP_KEY_TICK_RATE, {res_source_info::OUTPUT_EDGE, chan}));
_type_out.emplace_back(property_t<std::string>(
PROP_KEY_TYPE, otw_format, {res_source_info::OUTPUT_EDGE, chan}));
_mtu_out.push_back(property_t<size_t>(
PROP_KEY_MTU, {res_source_info::OUTPUT_EDGE, chan}));
// Give us some shorthands for the rest of this function
property_t<double>* scaling_out = &_scaling_out.back();
property_t<double>* samp_rate_out = &_samp_rate_out.back();
property_t<double>* tick_rate_out = &_tick_rate_out.back();
property_t<std::string>* type_out = &_type_out.back();
property_t<size_t>* mtu_out = &_mtu_out.back();
// Register them
register_property(scaling_out);
register_property(samp_rate_out);
register_property(tick_rate_out);
register_property(type_out);
register_property(mtu_out);
// Add resolvers
add_property_resolver({scaling_out}, {},
[&scaling_out = *scaling_out, chan, this]() {
RFNOC_LOG_TRACE("Calling resolver for `scaling_out'@" << chan);
if (scaling_out.is_valid()) {
this->set_scale_factor(chan, 32767.0 / scaling_out.get());
}
});
add_property_resolver({samp_rate_out}, {},
[&samp_rate_out = *samp_rate_out, chan, this]() {
RFNOC_LOG_TRACE("Calling resolver for `samp_rate_out'@" << chan);
if (samp_rate_out.is_valid()) {
this->set_samp_rate(samp_rate_out.get());
}
});
add_property_resolver({tick_rate_out}, {},
[&tick_rate_out = *tick_rate_out, chan, this]() {
RFNOC_LOG_TRACE("Calling resolver for `tick_rate_out'@" << chan);
if (tick_rate_out.is_valid()) {
this->set_tick_rate(tick_rate_out.get());
}
});
}
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