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/* -*- c++ -*- */
/*
* Copyright 2014 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_GR_UHD_USRP_COMMON_H
#define INCLUDED_GR_UHD_USRP_COMMON_H
#include <pmt/pmt.h>
#include <boost/dynamic_bitset.hpp>
#include <boost/make_shared.hpp>
#include <boost/bind.hpp>
#include <boost/thread.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <uhd/convert.hpp>
#include <iostream>
namespace gr {
namespace uhd {
typedef boost::function< ::uhd::sensor_value_t (const std::string&)> get_sensor_fn_t;
static const double LOCK_TIMEOUT = 1.5; // s
//! Helper function for msg_handler_command:
// - Extracts command and the command value from the command PMT
// - Returns true if the command PMT is well formed
// - If a channel is given, return that as well, otherwise set the channel to -1
static bool _unpack_chan_command(
std::string &command,
pmt::pmt_t &cmd_val,
int &chan,
const pmt::pmt_t &cmd_pmt
) {
try {
chan = -1; // Default value
if (pmt::is_tuple(cmd_pmt) and (pmt::length(cmd_pmt) == 2 or pmt::length(cmd_pmt) == 3)) {
command = pmt::symbol_to_string(pmt::tuple_ref(cmd_pmt, 0));
cmd_val = pmt::tuple_ref(cmd_pmt, 1);
if (pmt::length(cmd_pmt) == 3) {
chan = pmt::to_long(pmt::tuple_ref(cmd_pmt, 2));
}
}
else if (pmt::is_pair(cmd_pmt)) {
command = pmt::symbol_to_string(pmt::car(cmd_pmt));
cmd_val = pmt::cdr(cmd_pmt);
if (pmt::is_pair(cmd_val)) {
chan = pmt::to_long(pmt::car(cmd_val));
cmd_val = pmt::cdr(cmd_val);
}
}
else {
return false;
}
} catch (pmt::wrong_type w) {
return false;
}
return true;
}
//! Helper function for msg_handler_command:
// - Sets a value in vector_to_update to cmd_val, depending on chan
// - If chan is a positive integer, it will set vector_to_update[chan]
// - If chan is -1, it depends on minus_one_updates_all:
// - Either set vector_to_update[0] or
// - Set *all* entries in vector_to_update
// - Returns a dynamic_bitset, all indexes that where changed in
// vector_to_update are set to 1
template <typename T>
static boost::dynamic_bitset<> _update_vector_from_cmd_val(
std::vector<T> &vector_to_update,
int chan,
const T cmd_val,
bool minus_one_updates_all = false
) {
boost::dynamic_bitset<> vals_updated(vector_to_update.size());
if (chan == -1) {
if (minus_one_updates_all) {
for (size_t i = 0; i < vector_to_update.size(); i++) {
if (vector_to_update[i] != cmd_val) {
vals_updated[i] = true;
vector_to_update[i] = cmd_val;
}
}
return vals_updated;
}
chan = 0;
}
if (vector_to_update[chan] != cmd_val) {
vector_to_update[chan] = cmd_val;
vals_updated[chan] = true;
}
return vals_updated;
}
/*! \brief Components common to USRP sink and source.
*
* \param device_addr Device address + options
* \param stream_args Stream args (cpu format, otw format...)
* \param ts_tag_name If this block produces or consumes stream tags, enter the corresponding tag name here
*/
class usrp_common_impl
{
public:
usrp_common_impl(
const ::uhd::device_addr_t &device_addr,
const ::uhd::stream_args_t &stream_args,
const std::string &ts_tag_name
) :
_stream_args(stream_args),
_nchan(stream_args.channels.size()),
_stream_now(_nchan == 1 and ts_tag_name.empty()),
_start_time_set(false)
{
if(stream_args.cpu_format == "fc32")
_type = boost::make_shared< ::uhd::io_type_t >(::uhd::io_type_t::COMPLEX_FLOAT32);
if(stream_args.cpu_format == "sc16")
_type = boost::make_shared< ::uhd::io_type_t >(::uhd::io_type_t::COMPLEX_INT16);
_dev = ::uhd::usrp::multi_usrp::make(device_addr);
};
~usrp_common_impl() {};
protected:
/*! \brief Wait until a timeout or a sensor returns 'locked'.
*
* If a given sensor is not found, this still returns 'true', so we don't throw
* errors or warnings if a sensor wasn't implemented.
*/
bool _wait_for_locked_sensor(
std::vector<std::string> sensor_names,
const std::string &sensor_name,
get_sensor_fn_t get_sensor_fn
){
if (std::find(sensor_names.begin(), sensor_names.end(), sensor_name) == sensor_names.end())
return true;
boost::system_time start = boost::get_system_time();
boost::system_time first_lock_time;
while (true) {
if ((not first_lock_time.is_not_a_date_time()) and
(boost::get_system_time() > (first_lock_time + boost::posix_time::seconds(LOCK_TIMEOUT)))) {
break;
}
if (get_sensor_fn(sensor_name).to_bool()) {
if (first_lock_time.is_not_a_date_time())
first_lock_time = boost::get_system_time();
}
else {
first_lock_time = boost::system_time(); //reset to 'not a date time'
if (boost::get_system_time() > (start + boost::posix_time::seconds(LOCK_TIMEOUT))){
return false;
}
}
boost::this_thread::sleep(boost::posix_time::milliseconds(100));
}
return true;
}
//! Shared pointer to the underlying multi_usrp object
::uhd::usrp::multi_usrp::sptr _dev;
const ::uhd::stream_args_t _stream_args;
boost::shared_ptr< ::uhd::io_type_t > _type;
//! Number of channels (i.e. number of in- or outputs)
size_t _nchan;
bool _stream_now;
::uhd::time_spec_t _start_time;
bool _start_time_set;
};
} /* namespace uhd */
} /* namespace gr */
#endif /* INCLUDED_GR_UHD_USRP_COMMON_H */
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