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//
// Copyright 2010-2012 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 "validate_subdev_spec.hpp"
#include "async_packet_handler.hpp"
#include "../../transport/super_recv_packet_handler.hpp"
#include "../../transport/super_send_packet_handler.hpp"
#include "e100_impl.hpp"
#include <uhd/utils/msg.hpp>
#include <uhd/utils/log.hpp>
#include <uhd/utils/tasks.hpp>
#include <boost/bind.hpp>
#include <boost/format.hpp>
#include <boost/make_shared.hpp>
using namespace uhd;
using namespace uhd::usrp;
using namespace uhd::transport;
static const size_t vrt_send_header_offset_words32 = 0;
void e100_impl::update_tick_rate(const double rate){
//update the tick rate on all existing streamers -> thread safe
for (size_t i = 0; i < _rx_streamers.size(); i++){
boost::shared_ptr<sph::recv_packet_streamer> my_streamer =
boost::dynamic_pointer_cast<sph::recv_packet_streamer>(_rx_streamers[i].lock());
if (my_streamer.get() == NULL) continue;
my_streamer->set_tick_rate(rate);
}
for (size_t i = 0; i < _tx_streamers.size(); i++){
boost::shared_ptr<sph::send_packet_streamer> my_streamer =
boost::dynamic_pointer_cast<sph::send_packet_streamer>(_tx_streamers[i].lock());
if (my_streamer.get() == NULL) continue;
my_streamer->set_tick_rate(rate);
}
}
void e100_impl::update_rx_samp_rate(const size_t dspno, const double rate){
boost::shared_ptr<sph::recv_packet_streamer> my_streamer =
boost::dynamic_pointer_cast<sph::recv_packet_streamer>(_rx_streamers[dspno].lock());
if (my_streamer.get() == NULL) return;
my_streamer->set_samp_rate(rate);
const double adj = _rx_dsps[dspno]->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
}
void e100_impl::update_tx_samp_rate(const size_t dspno, const double rate){
boost::shared_ptr<sph::send_packet_streamer> my_streamer =
boost::dynamic_pointer_cast<sph::send_packet_streamer>(_tx_streamers[dspno].lock());
if (my_streamer.get() == NULL) return;
my_streamer->set_samp_rate(rate);
const double adj = _tx_dsp->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
}
void e100_impl::update_rates(void){
const fs_path mb_path = "/mboards/0";
_tree->access<double>(mb_path / "tick_rate").update();
//and now that the tick rate is set, init the host rates to something
BOOST_FOREACH(const std::string &name, _tree->list(mb_path / "rx_dsps")){
_tree->access<double>(mb_path / "rx_dsps" / name / "rate" / "value").update();
}
BOOST_FOREACH(const std::string &name, _tree->list(mb_path / "tx_dsps")){
_tree->access<double>(mb_path / "tx_dsps" / name / "rate" / "value").update();
}
}
void e100_impl::update_rx_subdev_spec(const uhd::usrp::subdev_spec_t &spec){
fs_path root = "/mboards/0/dboards";
//sanity checking
validate_subdev_spec(_tree, spec, "rx");
//setup mux for this spec
bool fe_swapped = false;
for (size_t i = 0; i < spec.size(); i++){
const std::string conn = _tree->access<std::string>(root / spec[i].db_name / "rx_frontends" / spec[i].sd_name / "connection").get();
if (i == 0 and (conn == "QI" or conn == "Q")) fe_swapped = true;
_rx_dsps[i]->set_mux(conn, fe_swapped);
}
_rx_fe->set_mux(fe_swapped);
}
void e100_impl::update_tx_subdev_spec(const uhd::usrp::subdev_spec_t &spec){
fs_path root = "/mboards/0/dboards";
//sanity checking
validate_subdev_spec(_tree, spec, "tx");
//set the mux for this spec
const std::string conn = _tree->access<std::string>(root / spec[0].db_name / "tx_frontends" / spec[0].sd_name / "connection").get();
_tx_fe->set_mux(conn);
}
/***********************************************************************
* Async Recv
**********************************************************************/
bool e100_impl::recv_async_msg(
async_metadata_t &async_metadata, double timeout
){
return _fifo_ctrl->pop_async_msg(async_metadata, timeout);
}
/***********************************************************************
* Receive streamer
**********************************************************************/
rx_streamer::sptr e100_impl::get_rx_stream(const uhd::stream_args_t &args_){
stream_args_t args = args_;
//setup defaults for unspecified values
args.otw_format = args.otw_format.empty()? "sc16" : args.otw_format;
args.channels = args.channels.empty()? std::vector<size_t>(1, 0) : args.channels;
//calculate packet size
static const size_t hdr_size = 0
+ vrt::max_if_hdr_words32*sizeof(uint32_t)
+ sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
- sizeof(vrt::if_packet_info_t().cid) //no class id ever used
- sizeof(vrt::if_packet_info_t().tsi) //no int time ever used
;
const size_t bpp = _data_transport->get_recv_frame_size() - hdr_size;
const size_t bpi = convert::get_bytes_per_item(args.otw_format);
const size_t spp = unsigned(args.args.cast<double>("spp", bpp/bpi));
//make the new streamer given the samples per packet
boost::shared_ptr<sph::recv_packet_streamer> my_streamer = boost::make_shared<sph::recv_packet_streamer>(spp);
//init some streamer stuff
my_streamer->resize(args.channels.size());
my_streamer->set_vrt_unpacker(&vrt::if_hdr_unpack_le);
//set the converter
uhd::convert::id_type id;
id.input_format = args.otw_format + "_item32_le";
id.num_inputs = 1;
id.output_format = args.cpu_format;
id.num_outputs = 1;
my_streamer->set_converter(id);
//bind callbacks for the handler
for (size_t chan_i = 0; chan_i < args.channels.size(); chan_i++){
const size_t dsp = args.channels[chan_i];
_rx_dsps[dsp]->set_nsamps_per_packet(spp); //seems to be a good place to set this
_rx_dsps[dsp]->setup(args);
my_streamer->set_xport_chan_get_buff(chan_i, boost::bind(
&recv_packet_demuxer::get_recv_buff, _recv_demuxer, dsp, _1
), true /*flush*/);
my_streamer->set_overflow_handler(chan_i, boost::bind(
&rx_dsp_core_200::handle_overflow, _rx_dsps[dsp]
));
my_streamer->set_issue_stream_cmd(chan_i, boost::bind(
&rx_dsp_core_200::issue_stream_command, _rx_dsps[dsp], _1));
_rx_streamers[dsp] = my_streamer; //store weak pointer
}
//sets all tick and samp rates on this streamer
this->update_rates();
return my_streamer;
}
/***********************************************************************
* Transmit streamer
**********************************************************************/
tx_streamer::sptr e100_impl::get_tx_stream(const uhd::stream_args_t &args_){
stream_args_t args = args_;
//setup defaults for unspecified values
args.otw_format = args.otw_format.empty()? "sc16" : args.otw_format;
args.channels = args.channels.empty()? std::vector<size_t>(1, 0) : args.channels;
//calculate packet size
static const size_t hdr_size = 0
+ vrt_send_header_offset_words32*sizeof(uint32_t)
+ vrt::max_if_hdr_words32*sizeof(uint32_t)
+ sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
- sizeof(vrt::if_packet_info_t().sid) //no stream id ever used
- sizeof(vrt::if_packet_info_t().cid) //no class id ever used
- sizeof(vrt::if_packet_info_t().tsi) //no int time ever used
;
static const size_t bpp = _data_transport->get_send_frame_size() - hdr_size;
const size_t spp = bpp/convert::get_bytes_per_item(args.otw_format);
//make the new streamer given the samples per packet
boost::shared_ptr<sph::send_packet_streamer> my_streamer = boost::make_shared<sph::send_packet_streamer>(spp);
//init some streamer stuff
my_streamer->resize(args.channels.size());
my_streamer->set_vrt_packer(&vrt::if_hdr_pack_le, vrt_send_header_offset_words32);
//set the converter
uhd::convert::id_type id;
id.input_format = args.cpu_format;
id.num_inputs = 1;
id.output_format = args.otw_format + "_item32_le";
id.num_outputs = 1;
my_streamer->set_converter(id);
//bind callbacks for the handler
for (size_t chan_i = 0; chan_i < args.channels.size(); chan_i++){
const size_t dsp = args.channels[chan_i];
UHD_ASSERT_THROW(dsp == 0); //always 0
_tx_dsp->setup(args);
my_streamer->set_xport_chan_get_buff(chan_i, boost::bind(
&zero_copy_if::get_send_buff, _data_transport, _1
));
my_streamer->set_async_receiver(boost::bind(&fifo_ctrl_excelsior::pop_async_msg, _fifo_ctrl, _1, _2));
_tx_streamers[dsp] = my_streamer; //store weak pointer
}
//sets all tick and samp rates on this streamer
this->update_rates();
return my_streamer;
}
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