/* -*- c++ -*- */
/*
* Copyright 2010-2013 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.
*/
#include <climits>
#include <stdexcept>
#include "usrp_sink_impl.h"
#include "gr_uhd_common.h"
#include <gnuradio/io_signature.h>
#include <boost/make_shared.hpp>
namespace gr {
namespace uhd {
usrp_sink::sptr
usrp_sink::make(const ::uhd::device_addr_t &device_addr,
const ::uhd::io_type_t &io_type,
size_t num_channels)
{
//fill in the streamer args
::uhd::stream_args_t stream_args;
switch(io_type.tid) {
case ::uhd::io_type_t::COMPLEX_FLOAT32: stream_args.cpu_format = "fc32"; break;
case ::uhd::io_type_t::COMPLEX_INT16: stream_args.cpu_format = "sc16"; break;
default: throw std::runtime_error("only complex float and shorts known to work");
}
stream_args.otw_format = "sc16"; //only sc16 known to work
for(size_t chan = 0; chan < num_channels; chan++)
stream_args.channels.push_back(chan); //linear mapping
return usrp_sink::make(device_addr, stream_args, "");
}
usrp_sink::sptr
usrp_sink::make(const ::uhd::device_addr_t &device_addr,
const ::uhd::stream_args_t &stream_args,
const std::string &length_tag_name)
{
check_abi();
return usrp_sink::sptr
(new usrp_sink_impl(device_addr, stream_args_ensure(stream_args), length_tag_name));
}
usrp_sink_impl::usrp_sink_impl(const ::uhd::device_addr_t &device_addr,
const ::uhd::stream_args_t &stream_args,
const std::string &length_tag_name)
: sync_block("gr uhd usrp sink",
args_to_io_sig(stream_args),
io_signature::make(0, 0, 0)),
_stream_args(stream_args),
_nchan(stream_args.channels.size()),
_stream_now(_nchan == 1 and length_tag_name.empty()),
_start_time_set(false),
_length_tag_key(length_tag_name.empty() ? pmt::PMT_NIL : pmt::string_to_symbol(length_tag_name)),
_nitems_to_send(0),
_curr_freq(stream_args.channels.size(), 0.0),
_curr_lo_offset(stream_args.channels.size(), 0.0),
_curr_gain(stream_args.channels.size(), 0.0),
_chans_to_tune(stream_args.channels.size(), false),
_call_tune(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);
message_port_register_in(pmt::mp("command"));
set_msg_handler(
pmt::mp("command"),
boost::bind(&usrp_sink_impl::msg_handler_command, this, _1)
);
//message_port_register_in(pmt::mp("query"));
//set_msg_handler(
//pmt::mp("query"),
//boost::bind(&usrp_sink_impl::msg_handler_query, this, _1)
//);
}
usrp_sink_impl::~usrp_sink_impl()
{
}
::uhd::dict<std::string, std::string>
usrp_sink_impl::get_usrp_info(size_t chan)
{
chan = _stream_args.channels[chan];
#ifdef UHD_USRP_MULTI_USRP_GET_USRP_INFO_API
return _dev->get_usrp_tx_info(chan);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
void
usrp_sink_impl::set_subdev_spec(const std::string &spec,
size_t mboard)
{
return _dev->set_tx_subdev_spec(spec, mboard);
}
std::string
usrp_sink_impl::get_subdev_spec(size_t mboard)
{
return _dev->get_tx_subdev_spec(mboard).to_string();
}
void
usrp_sink_impl::set_samp_rate(double rate)
{
BOOST_FOREACH(const size_t chan, _stream_args.channels)
{
_dev->set_tx_rate(rate, chan);
}
_sample_rate = this->get_samp_rate();
}
double
usrp_sink_impl::get_samp_rate(void)
{
return _dev->get_tx_rate(_stream_args.channels[0]);
}
::uhd::meta_range_t
usrp_sink_impl::get_samp_rates(void)
{
#ifdef UHD_USRP_MULTI_USRP_GET_RATES_API
return _dev->get_tx_rates(_stream_args.channels[0]);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
::uhd::tune_result_t
usrp_sink_impl::set_center_freq(const ::uhd::tune_request_t tune_request,
size_t chan)
{
_curr_freq[chan] = tune_request.target_freq;
if (tune_request.rf_freq_policy == ::uhd::tune_request_t::POLICY_MANUAL) {
_curr_lo_offset[chan] = tune_request.rf_freq - tune_request.target_freq;
} else {
_curr_lo_offset[chan] = 0.0;
}
chan = _stream_args.channels[chan];
return _dev->set_tx_freq(tune_request, chan);
}
::uhd::tune_result_t
usrp_sink_impl::_set_center_freq_from_internals(size_t chan)
{
_chans_to_tune[chan] = false;
if (_curr_lo_offset[chan] == 0.0) {
return _dev->set_tx_freq(_curr_freq[chan], _stream_args.channels[chan]);
} else {
return _dev->set_tx_freq(
::uhd::tune_request_t(_curr_freq[chan], _curr_lo_offset[chan]),
_stream_args.channels[chan]
);
}
}
void
usrp_sink_impl::_set_center_freq_from_internals_allchans()
{
for (size_t chan = 0; chan < _nchan; chan++) {
if (_chans_to_tune[chan]) {
_set_center_freq_from_internals(chan);
}
}
}
double
usrp_sink_impl::get_center_freq(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_freq(chan);
}
::uhd::freq_range_t
usrp_sink_impl::get_freq_range(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_freq_range(chan);
}
void
usrp_sink_impl::set_gain(double gain, size_t chan)
{
_curr_gain[chan] = gain;
chan = _stream_args.channels[chan];
return _dev->set_tx_gain(gain, chan);
}
void
usrp_sink_impl::set_gain(double gain,
const std::string &name,
size_t chan)
{
_curr_gain[chan] = gain;
chan = _stream_args.channels[chan];
return _dev->set_tx_gain(gain, name, chan);
}
double
usrp_sink_impl::get_gain(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_gain(chan);
}
double
usrp_sink_impl::get_gain(const std::string &name, size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_gain(name, chan);
}
std::vector<std::string>
usrp_sink_impl::get_gain_names(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_gain_names(chan);
}
::uhd::gain_range_t
usrp_sink_impl::get_gain_range(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_gain_range(chan);
}
::uhd::gain_range_t
usrp_sink_impl::get_gain_range(const std::string &name,
size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_gain_range(name, chan);
}
void
usrp_sink_impl::set_antenna(const std::string &ant,
size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->set_tx_antenna(ant, chan);
}
std::string
usrp_sink_impl::get_antenna(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_antenna(chan);
}
std::vector<std::string>
usrp_sink_impl::get_antennas(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_antennas(chan);
}
void
usrp_sink_impl::set_bandwidth(double bandwidth, size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->set_tx_bandwidth(bandwidth, chan);
}
double
usrp_sink_impl::get_bandwidth(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_bandwidth(chan);
}
::uhd::freq_range_t
usrp_sink_impl::get_bandwidth_range(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_bandwidth_range(chan);
}
void
usrp_sink_impl::set_dc_offset(const std::complex<double> &offset,
size_t chan)
{
chan = _stream_args.channels[chan];
#ifdef UHD_USRP_MULTI_USRP_FRONTEND_CAL_API
return _dev->set_tx_dc_offset(offset, chan);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
void
usrp_sink_impl::set_iq_balance(const std::complex<double> &correction,
size_t chan)
{
chan = _stream_args.channels[chan];
#ifdef UHD_USRP_MULTI_USRP_FRONTEND_CAL_API
return _dev->set_tx_iq_balance(correction, chan);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
::uhd::sensor_value_t
usrp_sink_impl::get_sensor(const std::string &name, size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_sensor(name, chan);
}
std::vector<std::string>
usrp_sink_impl::get_sensor_names(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_sensor_names(chan);
}
::uhd::sensor_value_t
usrp_sink_impl::get_mboard_sensor(const std::string &name,
size_t mboard)
{
return _dev->get_mboard_sensor(name, mboard);
}
std::vector<std::string>
usrp_sink_impl::get_mboard_sensor_names(size_t mboard)
{
return _dev->get_mboard_sensor_names(mboard);
}
void
usrp_sink_impl::set_clock_config(const ::uhd::clock_config_t &clock_config,
size_t mboard)
{
return _dev->set_clock_config(clock_config, mboard);
}
void
usrp_sink_impl::set_time_source(const std::string &source,
const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->set_time_source(source, mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
std::string
usrp_sink_impl::get_time_source(const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->get_time_source(mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
std::vector<std::string>
usrp_sink_impl::get_time_sources(const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->get_time_sources(mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
void
usrp_sink_impl::set_clock_source(const std::string &source,
const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->set_clock_source(source, mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
std::string
usrp_sink_impl::get_clock_source(const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->get_clock_source(mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
std::vector<std::string>
usrp_sink_impl::get_clock_sources(const size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_REF_SOURCES_API
return _dev->get_clock_sources(mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
double
usrp_sink_impl::get_clock_rate(size_t mboard)
{
return _dev->get_master_clock_rate(mboard);
}
void
usrp_sink_impl::set_clock_rate(double rate, size_t mboard)
{
return _dev->set_master_clock_rate(rate, mboard);
}
::uhd::time_spec_t
usrp_sink_impl::get_time_now(size_t mboard)
{
return _dev->get_time_now(mboard);
}
::uhd::time_spec_t
usrp_sink_impl::get_time_last_pps(size_t mboard)
{
return _dev->get_time_last_pps(mboard);
}
void
usrp_sink_impl::set_time_now(const ::uhd::time_spec_t &time_spec,
size_t mboard)
{
return _dev->set_time_now(time_spec, mboard);
}
void
usrp_sink_impl::set_time_next_pps(const ::uhd::time_spec_t &time_spec)
{
return _dev->set_time_next_pps(time_spec);
}
void
usrp_sink_impl::set_time_unknown_pps(const ::uhd::time_spec_t &time_spec)
{
return _dev->set_time_unknown_pps(time_spec);
}
void
usrp_sink_impl::set_command_time(const ::uhd::time_spec_t &time_spec,
size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_COMMAND_TIME_API
return _dev->set_command_time(time_spec, mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
void
usrp_sink_impl::clear_command_time(size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_COMMAND_TIME_API
return _dev->clear_command_time(mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
::uhd::usrp::dboard_iface::sptr
usrp_sink_impl::get_dboard_iface(size_t chan)
{
chan = _stream_args.channels[chan];
return _dev->get_tx_dboard_iface(chan);
}
::uhd::usrp::multi_usrp::sptr
usrp_sink_impl::get_device(void)
{
return _dev;
}
void
usrp_sink_impl::set_user_register(const uint8_t addr,
const uint32_t data,
size_t mboard)
{
#ifdef UHD_USRP_MULTI_USRP_USER_REGS_API
_dev->set_user_register(addr, data, mboard);
#else
throw std::runtime_error("not implemented in this version");
#endif
}
/***********************************************************************
* Work
**********************************************************************/
int
usrp_sink_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
int ninput_items = noutput_items; //cuz it's a sync block
// default to send a mid-burst packet
_metadata.start_of_burst = false;
_metadata.end_of_burst = false;
//collect tags in this work()
const uint64_t samp0_count = nitems_read(0);
get_tags_in_range(_tags, 0, samp0_count, samp0_count + ninput_items);
if(not _tags.empty())
this->tag_work(ninput_items);
if(not pmt::is_null(_length_tag_key)) {
//check if there is data left to send from a burst tagged with length_tag
//If a burst is started during this call to work(), tag_work() should have
//been called and we should have _nitems_to_send > 0.
if (_nitems_to_send > 0) {
ninput_items = std::min<long>(_nitems_to_send, ninput_items);
//if we run out of items to send, it's the end of the burst
if(_nitems_to_send - long(ninput_items) == 0)
_metadata.end_of_burst = true;
}
else {
//There is a tag gap since no length_tag was found immediately following
//the last sample of the previous burst. Drop samples until the next
//length_tag is found. Notify the user of the tag gap.
std::cerr << "tG" << std::flush;
//increment the timespec by the number of samples dropped
_metadata.time_spec += ::uhd::time_spec_t(0, ninput_items, _sample_rate);
return ninput_items;
}
}
#ifdef GR_UHD_USE_STREAM_API
//send all ninput_items with metadata
const size_t num_sent = _tx_stream->send
(input_items, ninput_items, _metadata, 1.0);
#else
const size_t num_sent = _dev->get_device()->send
(input_items, ninput_items, _metadata,
*_type, ::uhd::device::SEND_MODE_FULL_BUFF, 1.0);
#endif
//if using length_tags, decrement items left to send by the number of samples sent
if(not pmt::is_null(_length_tag_key) and _nitems_to_send > 0) {
_nitems_to_send -= long(num_sent);
}
//increment the timespec by the number of samples sent
_metadata.time_spec += ::uhd::time_spec_t(0, num_sent, _sample_rate);
// Some post-processing tasks if we actually transmitted the entire burst
if (_call_tune and num_sent == size_t(ninput_items)) {
_set_center_freq_from_internals_allchans();
_call_tune = false;
}
return num_sent;
}
/***********************************************************************
* Tag Work
**********************************************************************/
void
usrp_sink_impl::tag_work(int &ninput_items)
{
//the for loop below assumes tags sorted by count low -> high
std::sort(_tags.begin(), _tags.end(), tag_t::offset_compare);
//extract absolute sample counts
const uint64_t samp0_count = this->nitems_read(0);
uint64_t max_count = samp0_count + ninput_items;
// Go through tag list until something indicates the end of a burst.
bool found_time_tag = false;
bool found_eob = false;
bool found_freq_tag_in_burst = false;
uint64_t freq_cmd_offset = 0;
double freq_cmd_freq;
int freq_cmd_chan;
BOOST_FOREACH(const tag_t &my_tag, _tags) {
const uint64_t my_tag_count = my_tag.offset;
const pmt::pmt_t &key = my_tag.key;
const pmt::pmt_t &value = my_tag.value;
if (my_tag_count >= max_count) {
break;
}
else if (not pmt::is_null(_length_tag_key) and my_tag_count > samp0_count + _nitems_to_send) {
break;
}
/* I. Bursts that can only be on the first sample of burst
*
* This includes:
* - tx_time
* - tx_command
* - tx_sob
* - length tags
*
* With these tags, we check if they're on the first item, otherwise,
* we stop before that tag so they are on the first item the next time round.
*/
else if (pmt::equal(key, COMMAND_KEY)) {
if (my_tag_count != samp0_count) {
max_count = my_tag_count;
break;
}
msg_handler_command(value);
}
//set the time specification in the metadata
else if(pmt::equal(key, TIME_KEY)) {
if (my_tag_count != samp0_count) {
max_count = my_tag_count;
break;
}
found_time_tag = true;
_metadata.has_time_spec = true;
_metadata.time_spec = ::uhd::time_spec_t
(pmt::to_uint64(pmt::tuple_ref(value, 0)),
pmt::to_double(pmt::tuple_ref(value, 1)));
}
//set the start of burst flag in the metadata; ignore if length_tag_key is not null
else if(pmt::is_null(_length_tag_key) and pmt::equal(key, SOB_KEY)) {
if (my_tag.offset != samp0_count) {
max_count = my_tag_count;
break;
}
// Bursty tx will not use time specs, unless a tx_time tag is also given.
_metadata.has_time_spec = false;
_metadata.start_of_burst = pmt::to_bool(value);
}
//length_tag found; set the start of burst flag in the metadata
else if(not pmt::is_null(_length_tag_key) and pmt::equal(key, _length_tag_key)) {
if (my_tag_count != samp0_count) {
max_count = my_tag_count;
break;
}
//If there are still items left to send, the current burst has been preempted.
//Set the items remaining counter to the new burst length. Notify the user of
//the tag preemption.
else if(_nitems_to_send > 0) {
std::cerr << "tP" << std::flush;
}
_nitems_to_send = pmt::to_long(value);
_metadata.start_of_burst = true;
}
/* II. Bursts that can be on the first OR last sample of a burst
*
* This includes:
* - tx_freq (tags that don't actually change the frequency are ignored)
*
* With these tags, we check if they're at the start of a burst, and do
* the appropriate action. Otherwise, make sure the corresponding sample
* is the last one.
*/
else if (pmt::equal(key, FREQ_KEY) and my_tag_count == samp0_count) {
int chan = pmt::to_long(pmt::tuple_ref(value, 0));
double new_freq = pmt::to_double(pmt::tuple_ref(value, 1));
if (new_freq != _curr_freq[chan]) {
_curr_freq[chan] = new_freq;
_set_center_freq_from_internals(chan);
}
}
else if(pmt::equal(key, FREQ_KEY) and not found_freq_tag_in_burst) {
int chan = pmt::to_long(pmt::tuple_ref(value, 0));
double new_freq = pmt::to_double(pmt::tuple_ref(value, 1));
if (new_freq != _curr_freq[chan]) {
freq_cmd_freq = new_freq;
freq_cmd_chan = chan;
freq_cmd_offset = my_tag_count;
max_count = my_tag_count + 1;
found_freq_tag_in_burst = true;
}
}
/* III. Bursts that can only be on the last sample of a burst
*
* This includes:
* - tx_eob
*
* Make sure that no more samples are allowed through.
*/
else if(pmt::is_null(_length_tag_key) and pmt::equal(key, EOB_KEY)) {
found_eob = true;
max_count = my_tag_count + 1;
_metadata.end_of_burst = pmt::to_bool(value);
}
} // end foreach
if(not pmt::is_null(_length_tag_key) and long(max_count - samp0_count) == _nitems_to_send) {
found_eob = true;
}
if (found_freq_tag_in_burst) {
if (not found_eob) {
// If it's in the middle of a burst, only send() until before the tag
max_count = freq_cmd_offset;
} else if (freq_cmd_offset < max_count) {
// Otherwise, tune after work()
_curr_freq[freq_cmd_chan] = freq_cmd_freq;
_chans_to_tune[freq_cmd_chan] = true;
_call_tune = true;
}
}
if (found_time_tag) {
_metadata.has_time_spec = true;
}
// Only transmit up to and including end of burst,
// or everything if no burst boundaries are found.
ninput_items = int(max_count - samp0_count);
} // end tag_work()
void
usrp_sink_impl::set_start_time(const ::uhd::time_spec_t &time)
{
_start_time = time;
_start_time_set = true;
_stream_now = false;
}
//Send an empty start-of-burst packet to begin streaming.
//Set at a time in the near future to avoid late packets.
bool
usrp_sink_impl::start(void)
{
#ifdef GR_UHD_USE_STREAM_API
_tx_stream = _dev->get_tx_stream(_stream_args);
#endif
_metadata.start_of_burst = true;
_metadata.end_of_burst = false;
// Bursty tx will need to send a tx_time to activate time spec
_metadata.has_time_spec = not _stream_now and pmt::is_null(_length_tag_key);
_nitems_to_send = 0;
if(_start_time_set) {
_start_time_set = false; //cleared for next run
_metadata.time_spec = _start_time;
}
else {
_metadata.time_spec = get_time_now() + ::uhd::time_spec_t(0.01);
}
#ifdef GR_UHD_USE_STREAM_API
_tx_stream->send
(gr_vector_const_void_star(_nchan), 0, _metadata, 1.0);
#else
_dev->get_device()->send
(gr_vector_const_void_star(_nchan), 0, _metadata,
*_type, ::uhd::device::SEND_MODE_ONE_PACKET, 1.0);
#endif
return true;
}
//Send an empty end-of-burst packet to end streaming.
//Ending the burst avoids an underflow error on stop.
bool
usrp_sink_impl::stop(void)
{
_metadata.start_of_burst = false;
_metadata.end_of_burst = true;
_metadata.has_time_spec = false;
_nitems_to_send = 0;
#ifdef GR_UHD_USE_STREAM_API
_tx_stream->send(gr_vector_const_void_star(_nchan), 0, _metadata, 1.0);
#else
_dev->get_device()->send
(gr_vector_const_void_star(_nchan), 0, _metadata,
*_type, ::uhd::device::SEND_MODE_ONE_PACKET, 1.0);
#endif
return true;
}
/************** External interfaces (RPC + Message passing) ********************/
// Helper function for msg_handler_command: Extracts chan and command value from
// the 2-tuple in cmd_val, updates the value in vector_to_update[chan] and returns
// true if it was different from the old value.
bool _unpack_chan_command(pmt::pmt_t &cmd_val, int &chan, std::vector<double> &vector_to_update)
{
chan = pmt::to_long(pmt::tuple_ref(cmd_val, 0));
double new_value = pmt::to_double(pmt::tuple_ref(cmd_val, 1));
if (new_value == vector_to_update[chan]) {
return false;
} else {
vector_to_update[chan] = new_value;
return true;
}
}
void usrp_sink_impl::msg_handler_command(pmt::pmt_t msg)
{
const std::string command(pmt::symbol_to_string(pmt::car(msg)));
pmt::pmt_t value(pmt::cdr(msg));
int chan = 0;
if (command == "freq") {
if (_unpack_chan_command(value, chan, _curr_freq)) {
_set_center_freq_from_internals(chan);
}
} else if (command == "lo_offset") {
if (_unpack_chan_command(value, chan, _curr_lo_offset)) {
_set_center_freq_from_internals(chan);
}
} else if (command == "gain") {
if (_unpack_chan_command(value, chan, _curr_gain)) {
set_gain(_curr_gain[chan], chan);
}
} else {
GR_LOG_ALERT(d_logger, boost::format("Received unknown command: %s") % command);
}
}
void usrp_sink_impl::msg_handler_query(pmt::pmt_t msg)
{
//tbi
}
void
usrp_sink_impl::setup_rpc()
{
#ifdef GR_CTRLPORT
add_rpc_variable(
rpcbasic_sptr(new rpcbasic_register_get<usrp_sink, double>(
alias(), "samp_rate",
&usrp_sink::get_samp_rate,
pmt::mp(100000.0f), pmt::mp(25000000.0f), pmt::mp(1000000.0f),
"sps", "TX Sample Rate", RPC_PRIVLVL_MIN,
DISPTIME | DISPOPTSTRIP)));
add_rpc_variable(
rpcbasic_sptr(new rpcbasic_register_set<usrp_sink, double>(
alias(), "samp_rate",
&usrp_sink::set_samp_rate,
pmt::mp(100000.0f), pmt::mp(25000000.0f), pmt::mp(1000000.0f),
"sps", "TX Sample Rate",
RPC_PRIVLVL_MIN, DISPNULL)));
#endif /* GR_CTRLPORT */
}
} /* namespace uhd */
} /* namespace gr */