netsdr: add support for RFSPACE NetSDR receiver

- implements broadcast UDP based device discovery
- prints device information (serial/versions) on startup
- reads available frequency range(s) from the device
- integrity checks of IQ stream using sequence numbers
- automatic bandpass or a wideband lowpass selectable

The following named gain stages are available:

ATT: -30 to 0 dB, in 10dB steps

Known limitations:

- setting the sample rate is possible only before the
  flowgraph has been started
wip-signat
Dimitri Stolnikov 9 years ago
parent b7e2dd013b
commit 8facbbcca1
  1. 7
      README
  2. 16
      grc/gen_osmosdr_blocks.py
  3. 8
      lib/CMakeLists.txt
  4. 1
      lib/config.h.in
  5. 9
      lib/device.cc
  6. 37
      lib/netsdr/CMakeLists.txt
  7. 883
      lib/netsdr/netsdr_source_c.cc
  8. 134
      lib/netsdr/netsdr_source_c.h
  9. 18
      lib/source_impl.cc

@ -4,13 +4,14 @@ as well supports:
* FUNcube Dongle through libgnuradio-fcd
* FUNcube Dongle Pro+ through gr-fcdproplus
* sysmocom OsmoSDR Devices through libosmosdr
* Nuand LLC bladeRF through libbladeRF library
* Great Scott Gadgets HackRF through libhackrf
* Ettus USRP Devices through Ettus UHD library
* RTL2832U based DVB-T dongles through librtlsdr
* RTL-TCP spectrum server (see librtlsdr project)
* MSi2500 based DVB-T dongles through libmirisdr
* gnuradio .cfile input through libgnuradio-blocks
* RFSPACE NetSDR via direct TCP/UDP communication
* Great Scott Gadgets HackRF through libhackrf
* Nuand LLC bladeRF through libbladeRF library
* Ettus USRP Devices through Ettus UHD library
By using the OsmoSDR block you can take advantage of a common software api in
your application(s) independent of the underlying radio hardware.

@ -118,16 +118,15 @@ While primarily being developed for the OsmoSDR hardware, this block as well sup
* FUNcube Dongle through libgnuradio-fcd
* FUNcube Dongle Pro+ through gr-fcdproplus
* sysmocom OsmoSDR Devices through libosmosdr
#end if
* Nuand LLC bladeRF through libbladeRF library
* Great Scott Gadgets HackRF through libhackrf
* Ettus USRP Devices through Ettus UHD library
#if $sourk == 'source':
* RTL2832U based DVB-T dongles through librtlsdr
* RTL-TCP spectrum server (see librtlsdr project)
* MSi2500 based DVB-T dongles through libmirisdr
* gnuradio .cfile input through libgnuradio-blocks
* RFSPACE NetSDR via direct TCP/UDP communication
#end if
* Great Scott Gadgets HackRF through libhackrf
* Nuand LLC bladeRF through libbladeRF library
* Ettus USRP Devices through Ettus UHD library
By using the osmocom $sourk block you can take advantage of a common software api in your application(s) independent of the underlying radio hardware.
@ -145,22 +144,19 @@ Lines ending with ... mean it's possible to bind devices together by specifying
#if $sourk == 'source':
fcd=0[,device=hw:2][,type=2]
hackrf=0[,buffers=32]
miri=0[,buffers=32] ...
rtl=serial_number ...
rtl=0[,rtl_xtal=28.8e6][,tuner_xtal=28.8e6] ...
rtl=1[,buffers=32][,buflen=N*512] ...
rtl=2[,direct_samp=0|1|2][,offset_tune=0|1] ...
rtl_tcp=127.0.0.1:1234[,psize=16384][,direct_samp=0|1|2][,offset_tune=0|1] ...
uhd[,serial=...][,lo_offset=0][,mcr=52e6][,nchan=2][,subdev='\\\\'B:0 A:0\\\\''] ...
bladerf=0[,fpga='/path/to/the/bitstream.rbf'][,fw='/path/to/the/firmware.img']
osmosdr=0[,buffers=32][,buflen=N*512] ...
file='/path/to/your file',rate=1e6[,freq=100e6][,repeat=true][,throttle=true] ...
netsdr=127.0.0.1:50000[,nchan=1]
#end if
#if $sourk == 'sink':
hackrf=0[,buffers=32]
bladerf=0[,fpga='/path/to/the/bitstream.rbf'][,fw='/path/to/the/firmware.img']
uhd[,serial=...][,lo_offset=0][,mcr=52e6][,nchan=2][,subdev='\\\\'B:0 A:0\\\\''] ...
#end if
Num Channels:
Selects the total number of channels in this multi-device configuration. Required when specifying multiple device arguments.

@ -138,6 +138,14 @@ if(ENABLE_BLADERF)
GR_INCLUDE_SUBDIRECTORY(bladerf)
endif(ENABLE_BLADERF)
########################################################################
# Setup NetSDR component
########################################################################
GR_REGISTER_COMPONENT("RFSPACE NetSDR" ENABLE_NETSDR)
if(ENABLE_NETSDR)
GR_INCLUDE_SUBDIRECTORY(netsdr)
endif(ENABLE_NETSDR)
########################################################################
# Setup configuration file
########################################################################

@ -13,5 +13,6 @@
#cmakedefine ENABLE_MIRI
#cmakedefine ENABLE_HACKRF
#cmakedefine ENABLE_BLADERF
#cmakedefine ENABLE_NETSDR
#endif // CONFIG_H_IN

@ -66,6 +66,10 @@
#include <bladerf_source_c.h>
#endif
#ifdef ENABLE_NETSDR
#include <netsdr_source_c.h>
#endif
#include "arg_helpers.h"
using namespace osmosdr;
@ -145,6 +149,11 @@ devices_t device::find(const device_t &hint)
BOOST_FOREACH( std::string dev, hackrf_source_c::get_devices() )
devices.push_back( device_t(dev) );
#endif
#ifdef ENABLE_NETSDR
BOOST_FOREACH( std::string dev, netsdr_source_c::get_devices( true ) )
devices.push_back( device_t(dev) );
#endif
/* software-only sources should be appended at the very end,
* hopefully resulting in hardware sources to be shown first
* in a graphical interface etc... */

@ -0,0 +1,37 @@
# Copyright 2012 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.
########################################################################
# This file included, use CMake directory variables
########################################################################
include_directories(
${CMAKE_CURRENT_SOURCE_DIR}
)
set(netsdr_srcs
${CMAKE_CURRENT_SOURCE_DIR}/netsdr_source_c.cc
)
########################################################################
# Append gnuradio-osmosdr library sources
########################################################################
list(APPEND gr_osmosdr_srcs ${netsdr_srcs})
#list(APPEND gr_osmosdr_libs ...)

@ -0,0 +1,883 @@
/* -*- c++ -*- */
/*
* Copyright 2013 Dimitri Stolnikov <horiz0n@gmx.net>
*
* 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.
*/
/*
* config.h is generated by configure. It contains the results
* of probing for feature_t, options etc. It should be the first
* file included in your .cc file.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <iostream>
#include <boost/assign.hpp>
#include <boost/format.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/asio/deadline_timer.hpp>
#include <gnuradio/io_signature.h>
#include "arg_helpers.h"
#include "netsdr_source_c.h"
using namespace boost::assign;
using boost::asio::deadline_timer;
#define DEFAULT_HOST "127.0.0.1" /* We assume a running moetronix server */
#define DEFAULT_PORT 50000
/*
* Create a new instance of netsdr_source_c and return
* a boost shared_ptr. This is effectively the public constructor.
*/
netsdr_source_c_sptr make_netsdr_source_c (const std::string &args)
{
return gnuradio::get_initial_sptr(new netsdr_source_c (args));
}
/*
* Specify constraints on number of input and output streams.
* This info is used to construct the input and output signatures
* (2nd & 3rd args to gr_block's constructor). The input and
* output signatures are used by the runtime system to
* check that a valid number and type of inputs and outputs
* are connected to this block. In this case, we accept
* only 0 input and 1 output.
*/
static const int MIN_IN = 0; // mininum number of input streams
static const int MAX_IN = 0; // maximum number of input streams
static const int MIN_OUT = 1; // minimum number of output streams
static const int MAX_OUT = 1; // maximum number of output streams
/*
* The private constructor
*/
netsdr_source_c::netsdr_source_c (const std::string &args)
: gr::sync_block ("netsdr_source_c",
gr::io_signature::make (MIN_IN, MAX_IN, sizeof (gr_complex)),
gr::io_signature::make (MIN_OUT, MAX_OUT, sizeof (gr_complex))),
_io_service(),
_resolver(_io_service),
_t(_io_service),
_u(_io_service),
_running(false),
_sequence(0),
_nchan(1)
{
std::string host = "";
unsigned short port = 0;
dict_t dict = params_to_dict(args);
if (dict.count("netsdr")) {
std::string value = dict["netsdr"];
if ( ! value.length() )
{
std::vector< std::string > devices = get_devices();
if ( devices.size() )
{
dict_t first = params_to_dict( devices[0] );
dict["netsdr"] = value = first["netsdr"];
dict["label"] = first["label"];
}
}
std::vector< std::string > tokens;
boost::algorithm::split( tokens, value, boost::is_any_of(":") );
if ( tokens[0].length() && (tokens.size() == 1 || tokens.size() == 2 ) )
host = tokens[0];
if ( tokens.size() == 2 ) // port given
port = boost::lexical_cast< unsigned short >( tokens[1] );
}
if (dict.count("nchan"))
_nchan = boost::lexical_cast< size_t >( dict["nchan"] );
if ( _nchan < 1 || _nchan > 2 )
throw std::runtime_error("Number of channels (nchan) must be 1 or 2");
if ( ! host.length() )
host = DEFAULT_HOST;
if (0 == port)
port = DEFAULT_PORT;
std::string port_str = boost::lexical_cast< std::string >( port );
std::string label = dict["label"];
if ( label.length() )
std::cerr << "Using " + label << " ";
tcp::resolver::query query(tcp::v4(), host.c_str(), port_str.c_str());
tcp::resolver::iterator iterator = _resolver.resolve(query);
boost::system::error_code ec;
boost::asio::connect(_t, iterator, ec);
if ( ec )
throw std::runtime_error(ec.message() + " (" + host + ":" + port_str + ")");
_u.open(udp::v4(), ec);
if ( ec )
throw std::runtime_error(ec.message());
// TODO: make listener port dynamic
_u.bind(udp::endpoint(udp::v4(), DEFAULT_PORT), ec);
if ( ec )
throw std::runtime_error(ec.message());
_u.set_option(udp::socket::reuse_address(true));
_t.set_option(udp::socket::reuse_address(true));
// request & print device information
std::vector< unsigned char > response;
if ( ! label.length() ) /* label is empty, request name & sn from device */
{
std::cerr << "Using ";
unsigned char name[4] = { 0x04, 0x20, 0x01, 0x00 };
if ( transaction( name, sizeof(name), response ) )
std::cerr << &response[sizeof(name)] << " ";
unsigned char sern[4] = { 0x04, 0x20, 0x02, 0x00 };
if ( transaction( sern, sizeof(sern), response ) )
std::cerr << &response[sizeof(sern)] << " ";
}
bool has_X2_option = false;
unsigned char opts[4] = { 0x04, 0x20, 0x0A, 0x00 };
if ( transaction( opts, sizeof(opts), response ) )
{
if ( response[sizeof(opts)] )
{
has_X2_option = (response[sizeof(opts)] & 16 ? true : false);
std::cerr << "option ";
std::cerr << (response[sizeof(opts)] & 16 ? "2" : "-"); /* X2 board */
std::cerr << (response[sizeof(opts)] & 8 ? "U" : "-"); /* Up Converter */
std::cerr << (response[sizeof(opts)] & 4 ? "D" : "-"); /* Down Converter */
std::cerr << (response[sizeof(opts)] & 2 ? "R" : "-"); /* Reflock board */
std::cerr << (response[sizeof(opts)] & 1 ? "S" : "-"); /* Sound Enabled */
std::cerr << " ";
}
}
unsigned char bootver[5] = { 0x05, 0x20, 0x04, 0x00, 0x00 };
if ( transaction( bootver, sizeof(bootver), response ) )
std::cerr << "BOOT " << *((uint16_t *)&response[sizeof(bootver)]) << " ";
unsigned char firmver[5] = { 0x05, 0x20, 0x04, 0x00, 0x01 };
if ( transaction( firmver, sizeof(firmver), response ) )
std::cerr << "FW " << *((uint16_t *)&response[sizeof(firmver)]) << " ";
unsigned char hardver[5] = { 0x05, 0x20, 0x04, 0x00, 0x02 };
if ( transaction( hardver, sizeof(hardver), response ) )
std::cerr << "HW " << *((uint16_t *)&response[sizeof(hardver)]) << " ";
unsigned char fpgaver[5] = { 0x05, 0x20, 0x04, 0x00, 0x03 };
if ( transaction( fpgaver, sizeof(fpgaver), response ) )
std::cerr << "FPGA " << int(response[sizeof(fpgaver)])
<< "/" << int(response[sizeof(fpgaver)+1]) << " ";
std::cerr << std::endl;
{
/* 4.2.2 Receiver Channel Setup */
unsigned char rxchan[5] = { 0x05, 0x00, 0x19, 0x00, 0x00 };
unsigned char mode = 0; /* 0 = Single Channel Mode */
if ( 2 == _nchan )
{
if ( has_X2_option )
mode = 6; /* Dual Channel with dual A/D RF Path (requires X2 option) */
else
mode = 4; /* Dual Channel with single A/D RF Path using main A/D. */
set_output_signature( gr::io_signature::make (2, 2, sizeof (gr_complex)) );
}
rxchan[sizeof(rxchan)-1] = mode;
transaction( rxchan, sizeof(rxchan) );
}
set_sample_rate( 500e3 );
set_bandwidth( 0 ); /* switch to automatic filter selection by default */
}
/*
* Our virtual destructor.
*/
netsdr_source_c::~netsdr_source_c ()
{
}
void netsdr_source_c::apply_channel( unsigned char *cmd, size_t chan_pos, size_t chan )
{
if ( 0 == chan )
{
cmd[chan_pos] = 0;
}
else if ( 1 == chan )
{
if ( _nchan < 2 )
throw std::runtime_error("Channel must be 0 or 1");
cmd[chan_pos] = 2;
}
else
throw std::runtime_error("Channel must be 0 or 1");
}
bool netsdr_source_c::transaction( const unsigned char *cmd, size_t size )
{
std::vector< unsigned char > response;
if ( ! transaction( cmd, size, response ) )
return false;
/* comparing the contents is not really feasible due to protocol */
if ( response.size() == size ) /* check response size against request */
return true;
return false;
}
//#define VERBOSE
bool netsdr_source_c::transaction( const unsigned char *cmd, size_t size,
std::vector< unsigned char > &response )
{
unsigned char data[1024*2];
response.clear();
#ifdef VERBOSE
printf("< ");
for (size_t i = 0; i < size; i++)
printf("%02x ", (unsigned char) cmd[i]);
printf("\n");
#endif
_t.write_some( boost::asio::buffer(cmd, size) );
size_t rx_bytes = _t.read_some( boost::asio::buffer(data, sizeof(data)) );
response.resize( rx_bytes );
memcpy( response.data(), data, rx_bytes );
#ifdef VERBOSE
printf("> ");
for (size_t i = 0; i < rx_bytes; i++)
printf("%02x ", (unsigned char) data[i]);
printf("\n");
#endif
return true;
}
bool netsdr_source_c::start()
{
_sequence = 0;
_running = true;
// TODO: implement 24 bit sample format
/* 4.2.1 Receiver State */
unsigned char start[8] = { 0x08, 0x00, 0x18, 0x00, 0x80, 0x02, 0x00, 0x00 };
return transaction( start, sizeof(start) );
}
bool netsdr_source_c::stop()
{
_running = false;
/* 4.2.1 Receiver State */
unsigned char stop[8] = { 0x08, 0x00, 0x18, 0x00, 0x00, 0x01, 0x00, 0x00 };
return transaction( stop, sizeof(stop) );
}
/* Main work function, pull samples from the socket */
int netsdr_source_c::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items )
{
udp::endpoint ep;
unsigned char data[1024*2];
if ( ! _running )
return WORK_DONE;
size_t rx_bytes = _u.receive_from( boost::asio::buffer(data, sizeof(data)), ep );
#define HEADER_SIZE 2
#define SEQNUM_SIZE 2
// bool is_24_bit = false;
/* check header */
if ( (0x04 == data[0] && (0x84 == data[1] || 0x82 == data[1])) )
{
// is_24_bit = false;
}
else if ( (0xA4 == data[0] && 0x85 == data[1]) ||
(0x84 == data[0] && 0x81 == data[1]) )
{
// is_24_bit = true;
return 0;
}
else
return 0;
uint16_t sequence = *((uint16_t *)(data + HEADER_SIZE));
uint16_t diff = sequence - _sequence;
if ( diff > 1 )
{
std::cerr << "Lost " << diff << " packets from NetSDR at " << ep << std::endl;
}
_sequence = (0xffff == sequence) ? 0 : sequence;
/* get pointer to samples */
int16_t *sample = (int16_t *)(data + HEADER_SIZE + SEQNUM_SIZE);
size_t rx_samples = (rx_bytes - HEADER_SIZE - SEQNUM_SIZE) / (sizeof(int16_t) * 2);
#define SCALE_16 (1.0f/32768.0f)
if ( 1 == _nchan )
{
gr_complex *out = (gr_complex *)output_items[0];
for ( size_t i = 0; i < rx_samples; i++ )
{
out[i] = gr_complex( *(sample+0) * SCALE_16,
*(sample+1) * SCALE_16 );
sample += 2;
}
}
else if ( 2 == _nchan )
{
rx_samples /= 2;
gr_complex *out1 = (gr_complex *)output_items[0];
gr_complex *out2 = (gr_complex *)output_items[1];
for ( size_t i = 0; i < rx_samples; i++ )
{
out1[i] = gr_complex( *(sample+0) * SCALE_16,
*(sample+1) * SCALE_16 );
out2[i] = gr_complex( *(sample+2) * SCALE_16,
*(sample+3) * SCALE_16 );
sample += 4;
}
}
noutput_items = rx_samples;
return noutput_items;
}
/* discovery protocol internals taken from CuteSDR project */
typedef struct __attribute__ ((__packed__))
{
/* 56 fixed common byte fields */
unsigned char length[2]; /* length of total message in bytes (little endian byte order) */
unsigned char key[2]; /* fixed key key[0]==0x5A key[1]==0xA5 */
unsigned char op; /* 0 == Tx_msg(to device), 1 == Rx_msg(from device), 2 == Set(to device) */
char name[16]; /* Device name string null terminated */
char sn[16]; /* Serial number string null terminated */
unsigned char ipaddr[16]; /* device IP address (little endian byte order) */
unsigned char port[2]; /* device Port number (little endian byte order) */
unsigned char customfield; /* Specifies a custom data field for a particular device */
} discover_common_msg_t;
/* UDP port numbers for discovery protocol */
#define DISCOVER_SERVER_PORT 48321 /* PC client Tx port, SDR Server Rx Port */
#define DISCOVER_CLIENT_PORT 48322 /* PC client Rx port, SDR Server Tx Port */
#define KEY0 0x5A
#define KEY1 0xA5
#define MSG_REQ 0
#define MSG_RESP 1
#define MSG_SET 2
typedef struct
{
std::string name;
std::string sn;
std::string addr;
uint16_t port;
} unit_t;
static void handle_receive( const boost::system::error_code& ec,
std::size_t length,
boost::system::error_code* out_ec,
std::size_t* out_length )
{
*out_ec = ec;
*out_length = length;
}
static void handle_timer( const boost::system::error_code& ec,
boost::system::error_code* out_ec )
{
*out_ec = boost::asio::error::timed_out;
}
static std::vector < unit_t > discover_netsdr()
{
std::vector < unit_t > units;
boost::system::error_code ec;
boost::asio::io_service ios;
udp::socket socket(ios);
deadline_timer timer(ios);
unsigned char data[1024*2];
timer.expires_at(boost::posix_time::pos_infin);
socket.open(udp::v4(), ec);
if ( ec )
return units;
socket.bind(udp::endpoint(udp::v4(), DISCOVER_CLIENT_PORT), ec);
if ( ec )
return units;
socket.set_option(udp::socket::reuse_address(true));
socket.set_option(boost::asio::socket_base::broadcast(true));
discover_common_msg_t tx_msg;
memset( (void *)&tx_msg, 0, sizeof(discover_common_msg_t) );
tx_msg.length[0] = sizeof(discover_common_msg_t);
tx_msg.length[1] = sizeof(discover_common_msg_t) >> 8;
tx_msg.key[0] = KEY0;
tx_msg.key[1] = KEY1;
tx_msg.op = MSG_REQ;
udp::endpoint ep(boost::asio::ip::address_v4::broadcast(), DISCOVER_SERVER_PORT);
socket.send_to(boost::asio::buffer(&tx_msg, sizeof(tx_msg)), ep);
while ( true )
{
// Set up the variables that receive the result of the asynchronous
// operation. The error code is set to would_block to signal that the
// operation is incomplete. Asio guarantees that its asynchronous
// operations will never fail with would_block, so any other value in
// ec indicates completion.
ec = boost::asio::error::would_block;
std::size_t rx_bytes = 0;
// Start the asynchronous receive operation. The handle_receive function
// used as a callback will update the ec and rx_bytes variables.
socket.async_receive( boost::asio::buffer(data, sizeof(data)),
boost::bind(handle_receive, _1, _2, &ec, &rx_bytes) );
// Set a deadline for the asynchronous operation.
timer.expires_from_now( boost::posix_time::milliseconds(10) );
// Start an asynchronous wait on the timer. The handle_timer function
// used as a callback will update the ec variable.
timer.async_wait( boost::bind(handle_timer, _1, &ec) );
// Reset the io_service in preparation for a subsequent run_one() invocation.
ios.reset();
// Block until at least one asynchronous operation has completed.
do ios.run_one(); while ( ec == boost::asio::error::would_block );
if ( boost::asio::error::timed_out == ec ) /* timer was first to complete */
{
// Please note that cancel() has portability issues on some versions of
// Microsoft Windows, and it may be necessary to use close() instead.
// Consult the documentation for cancel() for further information.
socket.cancel();
break;
}
else /* socket was first to complete */
{
timer.cancel();
}
if ( rx_bytes >= sizeof(discover_common_msg_t) )
{
discover_common_msg_t *rx_msg = (discover_common_msg_t *)data;
if ( KEY0 == rx_msg->key[0] && KEY1 == rx_msg->key[1] &&
MSG_RESP == rx_msg->op )
{
void *temp = rx_msg->port;
uint16_t port = *((uint16_t *)temp);
std::string addr = str(boost::format("%d.%d.%d.%d")
% int(rx_msg->ipaddr[3]) % int(rx_msg->ipaddr[2])
% int(rx_msg->ipaddr[1]) % int(rx_msg->ipaddr[0]));
unit_t unit;
unit.name = rx_msg->name;
unit.sn = rx_msg->sn;
unit.addr = addr;
unit.port = port;
units.push_back( unit );
}
}
}
socket.close(ec);
return units;
}
std::vector<std::string> netsdr_source_c::get_devices( bool fake )
{
std::vector<std::string> devices;
std::vector < unit_t > units = discover_netsdr();
BOOST_FOREACH( unit_t u, units )
{
// std::cerr << u.name << " " << u.sn << " " << u.addr << ":" << u.port
// << std::endl;
devices += str(boost::format("netsdr=%s:%d,label='RFSPACE %s SN %s'")
% u.addr % u.port % u.name % u.sn);
}
if ( devices.empty() && fake )
devices += str(boost::format("netsdr=%s:%d,label='RFSPACE NetSDR'")
% DEFAULT_HOST % DEFAULT_PORT);
return devices;
}
size_t netsdr_source_c::get_num_channels()
{
return _nchan;
}
osmosdr::meta_range_t netsdr_source_c::get_sample_rates()
{
osmosdr::meta_range_t range;
#define MAX_RATE 2e6
/* Calculate NetSDR sample rates */
for ( size_t i = 625; i >= 10; i-- )
{
double rate = 80e6/(4.0*i);
if ( rate > (MAX_RATE / _nchan) )
break;
if ( floor(rate) == rate )
range += osmosdr::range_t( rate );
}
return range;
}
double netsdr_source_c::set_sample_rate( double rate )
{
unsigned char samprate[9] = { 0x09, 0x00, 0xB8, 0x00, 0x00, 0x20, 0xA1, 0x07, 0x00 };
uint32_t u32_rate = rate;
samprate[sizeof(samprate)-4] = u32_rate >> 0;
samprate[sizeof(samprate)-3] = u32_rate >> 8;
samprate[sizeof(samprate)-2] = u32_rate >> 16;
samprate[sizeof(samprate)-1] = u32_rate >> 24;
std::vector< unsigned char > response;
// TODO: implement settable sample rates
// stop();
if ( _running )
{
std::cerr << "Changing the NetSDR sample rate not possible in run mode" << std::endl;
return get_sample_rate();
}
if ( ! transaction( samprate, sizeof(samprate), response ) )
throw std::runtime_error("set_sample_rate failed");
// start();
u32_rate = 0;
u32_rate |= response[sizeof(samprate)-4] << 0;
u32_rate |= response[sizeof(samprate)-3] << 8;
u32_rate |= response[sizeof(samprate)-2] << 16;
u32_rate |= response[sizeof(samprate)-1] << 24;
_sample_rate = u32_rate;
if ( rate != _sample_rate )
std::cerr << "Current NetSDR sample rate is " << (uint32_t)_sample_rate << std::endl;
return get_sample_rate();
}
double netsdr_source_c::get_sample_rate()
{
return _sample_rate;
}
osmosdr::freq_range_t netsdr_source_c::get_freq_range( size_t chan )
{
osmosdr::freq_range_t range;
/* query freq range(s) of the radio */
/* 4.2.3 Receiver Frequency */
unsigned char frange[5] = { 0x05, 0x40, 0x20, 0x00, 0x00 };
apply_channel( frange, 4, chan );
std::vector< unsigned char > response;
transaction( frange, sizeof(frange), response );
if ( response.size() >= sizeof(frange) + 1 )
{
for ( size_t i = 0; i < response[sizeof(frange)]; i++ )
{
uint32_t min = *((uint32_t *)&response[sizeof(frange)+1+i*15]);
uint32_t max = *((uint32_t *)&response[sizeof(frange)+1+5+i*15]);
//uint32_t vco = *((uint32_t *)&response[sizeof(frange)+1+10+i*15]);
//std::cerr << min << " " << max << " " << vco << std::endl;
range += osmosdr::range_t(min, max); /* must be monotonic */
}
}
if ( range.empty() )
range += osmosdr::range_t(0, 40e6);
return range;
}
double netsdr_source_c::set_center_freq( double freq, size_t chan )
{
uint32_t u32_freq = freq;
/* 4.2.3 Receiver Frequency */
unsigned char tune[10] = { 0x0A, 0x00, 0x20, 0x00, 0x00, 0xb0, 0x19, 0x6d, 0x00, 0x00 };
apply_channel( tune, 4, chan );
tune[sizeof(tune)-5] = u32_freq >> 0;
tune[sizeof(tune)-4] = u32_freq >> 8;
tune[sizeof(tune)-3] = u32_freq >> 16;
tune[sizeof(tune)-2] = u32_freq >> 24;
tune[sizeof(tune)-1] = 0;
transaction( tune, sizeof(tune) );
return get_center_freq( chan );
}
double netsdr_source_c::get_center_freq( size_t chan )
{
/* 4.2.3 Receiver Frequency */
unsigned char freq[10] = { 0x05, 0x20, 0x20, 0x00, 0x00 };
apply_channel( freq, 4, chan );
std::vector< unsigned char > response;
if ( ! transaction( freq, sizeof(freq), response ) )
throw std::runtime_error("get_center_freq failed");
uint32_t frequency = 0;
frequency |= response[response.size()-5] << 0;
frequency |= response[response.size()-4] << 8;
frequency |= response[response.size()-3] << 16;
frequency |= response[response.size()-2] << 24;
return frequency;
}
double netsdr_source_c::set_freq_corr( double ppm, size_t chan )
{
return get_freq_corr( chan );
}
double netsdr_source_c::get_freq_corr( size_t chan )
{
return 0;
}
std::vector<std::string> netsdr_source_c::get_gain_names( size_t chan )
{
std::vector< std::string > names;
names += "ATT";
return names;
}
osmosdr::gain_range_t netsdr_source_c::get_gain_range( size_t chan )
{
return osmosdr::gain_range_t(-30, 0, 10);
}
osmosdr::gain_range_t netsdr_source_c::get_gain_range( const std::string & name, size_t chan )
{
return get_gain_range( chan );
}
bool netsdr_source_c::set_gain_mode( bool automatic, size_t chan )
{
return false;
}
bool netsdr_source_c::get_gain_mode( size_t chan )
{
return false;
}
double netsdr_source_c::set_gain( double gain, size_t chan )
{
/* 4.2.6 RF Gain */
unsigned char atten[] = { 0x06, 0x00, 0x38, 0x00, 0x00, 0x00 };
apply_channel( atten, 4, chan );
if ( gain <= -30 )
atten[sizeof(atten)-1] = 0xE2;
else if ( gain <= -20 )
atten[sizeof(atten)-1] = 0xEC;
else if ( gain <= -10 )
atten[sizeof(atten)-1] = 0xF6;
else /* 0 dB */
atten[sizeof(atten)-1] = 0x00;
transaction( atten, sizeof(atten) );
return get_gain( chan );
}
double netsdr_source_c::set_gain( double gain, const std::string & name, size_t chan )
{
return set_gain( gain, chan );
}
double netsdr_source_c::get_gain( size_t chan )
{
/* 4.2.6 RF Gain */
unsigned char atten[] = { 0x05, 0x20, 0x38, 0x00, 0x00 };
apply_channel( atten, 4, chan );
std::vector< unsigned char > response;
if ( ! transaction( atten, sizeof(atten), response ) )
throw std::runtime_error("get_gain failed");
return (char) response[response.size()-1];
}
double netsdr_source_c::get_gain( const std::string & name, size_t chan )
{
return get_gain( chan );
}
std::vector< std::string > netsdr_source_c::get_antennas( size_t chan )
{
std::vector< std::string > antennas;
antennas += get_antenna( chan );
return antennas;
}
std::string netsdr_source_c::set_antenna( const std::string & antenna, size_t chan )
{
return get_antenna( chan );
}
std::string netsdr_source_c::get_antenna( size_t chan )
{
/* We only have a single receive antenna here */
return "RX";
}
#define BANDWIDTH 34e6
double netsdr_source_c::set_bandwidth( double bandwidth, size_t chan )
{
/* 4.2.7 RF Filter Selection */
unsigned char filter[6] = { 0x06, 0x00, 0x44, 0x00, 0x00, 0x00 };
apply_channel( filter, 4, chan );
if ( 0.0f == bandwidth )
{
_bandwidth = 0.0f;
filter[sizeof(filter)-1] = 0x00; /* Select bandpass filter based on NCO frequency */
}
else if ( BANDWIDTH == bandwidth )
{
_bandwidth = BANDWIDTH;
filter[sizeof(filter)-1] = 0x0B; /* Bypass bandpass filter, use only antialiasing */
}
transaction( filter, sizeof(filter) );
return get_bandwidth();
}
double netsdr_source_c::get_bandwidth( size_t chan )
{
return _bandwidth;
}
osmosdr::freq_range_t netsdr_source_c::get_bandwidth_range( size_t chan )
{
osmosdr::freq_range_t bandwidths;
bandwidths += osmosdr::range_t( BANDWIDTH );
return bandwidths;
}

@ -0,0 +1,134 @@
/* -*- c++ -*- */
/*
* Copyright 2013 Dimitri Stolnikov <horiz0n@gmx.net>
*
* 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_NETSDR_SOURCE_C_H
#define INCLUDED_NETSDR_SOURCE_C_H
#include <boost/asio.hpp>
#include <gnuradio/thread/thread.h>
#include <gnuradio/block.h>
#include <gnuradio/sync_block.h>
#include "osmosdr/ranges.h"
#include "source_iface.h"
using boost::asio::ip::tcp;
using boost::asio::ip::udp;
class netsdr_source_c;
/*
* We use boost::shared_ptr's instead of raw pointers for all access
* to gr_blocks (and many other data structures). The shared_ptr gets
* us transparent reference counting, which greatly simplifies storage
* management issues. This is especially helpful in our hybrid
* C++ / Python system.
*
* See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
*
* As a convention, the _sptr suffix indicates a boost::shared_ptr
*/
typedef boost::shared_ptr<netsdr_source_c> netsdr_source_c_sptr;
/*!
* \brief Return a shared_ptr to a new instance of netsdr_source_c.
*
* To avoid accidental use of raw pointers, netsdr_source_c's
* constructor is private. netsdr_make_source_c is the public
* interface for creating new instances.
*/
netsdr_source_c_sptr make_netsdr_source_c (const std::string & args = "");
class netsdr_source_c :
public gr::sync_block,
public source_iface
{
private:
// The friend declaration allows netsdr_make_source_c to
// access the private constructor.
friend netsdr_source_c_sptr make_netsdr_source_c (const std::string & args);
netsdr_source_c (const std::string & args); // private constructor
public:
~netsdr_source_c (); // public destructor
bool start();
bool stop();
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items );
static std::vector< std::string > get_devices( bool fake = false );
size_t get_num_channels( void );
osmosdr::meta_range_t get_sample_rates( void );
double set_sample_rate( double rate );
double get_sample_rate( void );
osmosdr::freq_range_t get_freq_range( size_t chan = 0 );
double set_center_freq( double freq, size_t chan = 0 );
double get_center_freq( size_t chan = 0 );
double set_freq_corr( double ppm, size_t chan = 0 );
double get_freq_corr( size_t chan = 0 );
std::vector<std::string> get_gain_names( size_t chan = 0 );
osmosdr::gain_range_t get_gain_range( size_t chan = 0 );
osmosdr::gain_range_t get_gain_range( const std::string & name, size_t chan = 0 );
bool set_gain_mode( bool automatic, size_t chan = 0 );
bool get_gain_mode( size_t chan = 0 );
double set_gain( double gain, size_t chan = 0 );
double set_gain( double gain, const std::string & name, size_t chan = 0 );
double get_gain( size_t chan = 0 );
double get_gain( const std::string & name, size_t chan = 0 );
std::vector< std::string > get_antennas( size_t chan = 0 );
std::string set_antenna( const std::string & antenna, size_t chan = 0 );
std::string get_antenna( size_t chan = 0 );
double set_bandwidth( double bandwidth, size_t chan = 0 );
double get_bandwidth( size_t chan = 0 );
osmosdr::freq_range_t get_bandwidth_range( size_t chan = 0 );
private: /* functions */
void apply_channel(unsigned char *cmd, size_t chan_pos, size_t chan);
bool transaction( const unsigned char *cmd, size_t size );
bool transaction( const unsigned char *cmd, size_t size,
std::vector< unsigned char > &response );
private: /* members */
boost::asio::io_service _io_service;
tcp::resolver _resolver;
tcp::socket _t;
udp::socket _u;
bool _running;
uint16_t _sequence;
size_t _nchan;
double _sample_rate;
double _bandwidth;
};
#endif /* INCLUDED_NETSDR_SOURCE_C_H */

@ -68,6 +68,10 @@
#include <bladerf_source_c.h>
#endif
#ifdef ENABLE_NETSDR
#include <netsdr_source_c.h>
#endif
#include "arg_helpers.h"
#include "source_impl.h"
@ -127,6 +131,9 @@ source_impl::source_impl( const std::string &args )
#endif
#ifdef ENABLE_BLADERF
dev_types.push_back("bladerf");
#endif
#ifdef ENABLE_NETSDR
dev_types.push_back("netsdr");
#endif
std::cerr << "gr-osmosdr "
<< GR_OSMOSDR_VERSION << " (" << GR_OSMOSDR_LIBVER << ") "
@ -173,6 +180,10 @@ source_impl::source_impl( const std::string &args )
BOOST_FOREACH( std::string dev, bladerf_source_c::get_devices() )
dev_list.push_back( dev );
#endif
#ifdef ENABLE_NETSDR
BOOST_FOREACH( std::string dev, netsdr_source_c::get_devices() )
dev_list.push_back( dev );
#endif
#ifdef ENABLE_HACKRF
BOOST_FOREACH( std::string dev, hackrf_source_c::get_devices() )
dev_list.push_back( dev );
@ -263,6 +274,13 @@ source_impl::source_impl( const std::string &args )
}
#endif
#ifdef ENABLE_NETSDR
if ( dict.count("netsdr") ) {
netsdr_source_c_sptr src = make_netsdr_source_c( arg );
block = src; iface = src.get();
}
#endif
if ( iface != NULL && long(block.get()) != 0 ) {
_devs.push_back( iface );

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