forked from sdr/gr-osmosdr
585 lines
17 KiB
C++
585 lines
17 KiB
C++
/* -*- c++ -*- */
|
|
/*
|
|
* Copyright 2013 Nuand LLC
|
|
* 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 features, 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 <gnuradio/io_signature.h>
|
|
|
|
#include "arg_helpers.h"
|
|
#include "bladerf_source_c.h"
|
|
|
|
using namespace boost::assign;
|
|
|
|
/*
|
|
* Create a new instance of bladerf_source_c and return
|
|
* a boost shared_ptr. This is effectively the public constructor.
|
|
*/
|
|
bladerf_source_c_sptr make_bladerf_source_c (const std::string &args)
|
|
{
|
|
return gnuradio::get_initial_sptr(new bladerf_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
|
|
*/
|
|
bladerf_source_c::bladerf_source_c (const std::string &args)
|
|
: gr::sync_block ("bladerf_source_c",
|
|
gr::io_signature::make (MIN_IN, MAX_IN, sizeof (gr_complex)),
|
|
gr::io_signature::make (MIN_OUT, MAX_OUT, sizeof (gr_complex)))
|
|
{
|
|
unsigned int device_number = 0;
|
|
std::string device_name;
|
|
|
|
dict_t dict = params_to_dict(args);
|
|
|
|
if (dict.count("bladerf"))
|
|
{
|
|
std::string value = dict["bladerf"];
|
|
if ( value.length() )
|
|
{
|
|
try {
|
|
device_number = boost::lexical_cast< unsigned int >( value );
|
|
} catch ( std::exception &ex ) {
|
|
throw std::runtime_error(
|
|
"Failed to use '" + value + "' as device number: " + ex.what());
|
|
}
|
|
}
|
|
}
|
|
|
|
device_name = boost::str(boost::format( "/dev/bladerf%d" ) % device_number);
|
|
|
|
/* Open a handle to the device */
|
|
this->dev = bladerf_open( device_name.c_str() );
|
|
if( NULL == this->dev ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"failed to open bladeRF device " + device_name );
|
|
}
|
|
|
|
if (dict.count("fpga"))
|
|
{
|
|
std::string fpga = dict["fpga"];
|
|
|
|
std::cerr << "Loading FPGA bitstream " << fpga << "..." << std::endl;
|
|
int ret = bladerf_load_fpga( this->dev, fpga.c_str() );
|
|
if ( ret != 0 )
|
|
std::cerr << "bladerf_load_fpga has returned with " << ret << std::endl;
|
|
else
|
|
std::cerr << "The FPGA bitstream has been successfully loaded." << std::endl;
|
|
}
|
|
|
|
if (dict.count("fw"))
|
|
{
|
|
std::string fw = dict["fw"];
|
|
|
|
std::cerr << "Flashing firmware image " << fw << "..., "
|
|
<< "DO NOT INTERRUPT!"
|
|
<< std::endl;
|
|
int ret = bladerf_flash_firmware( this->dev, fw.c_str() );
|
|
if ( ret != 0 )
|
|
std::cerr << "bladerf_flash_firmware has failed with " << ret << std::endl;
|
|
else
|
|
std::cerr << "The firmare has been successfully flashed, "
|
|
<< "please power cycle the bladeRF before using it."
|
|
<< std::endl;
|
|
}
|
|
|
|
std::cerr << "Using nuand LLC bladeRF #" << device_number;
|
|
|
|
u_int64_t serial;
|
|
if ( bladerf_get_serial( this->dev, &serial ) == 0 )
|
|
std::cerr << " SN " << std::setfill('0') << std::setw(16) << serial;
|
|
|
|
unsigned int major, minor;
|
|
if ( bladerf_get_fw_version( this->dev, &major, &minor) == 0 )
|
|
std::cerr << " FW v" << major << "." << minor;
|
|
|
|
if ( bladerf_get_fpga_version( this->dev, &major, &minor) == 0 )
|
|
std::cerr << " FPGA v" << major << "." << minor;
|
|
|
|
std::cerr << std::endl;
|
|
|
|
if ( bladerf_is_fpga_configured( this->dev ) != 1 )
|
|
{
|
|
std::cerr << "ERROR: The FPGA is not configured! "
|
|
<< "Use the device argument fpga=/path/to/the/bitstream.rbf to load it."
|
|
<< std::endl;
|
|
}
|
|
|
|
/* Set the range of LNA, G_LNA_RXFE[1:0] */
|
|
this->lna_range = osmosdr::gain_range_t( 0, 6, 3 );
|
|
|
|
/* Set the range of VGA1, RFB_TIA_RXFE[6:0], nonlinear mapping done inside the lib */
|
|
this->vga1_range = osmosdr::gain_range_t( 5, 30, 1 );
|
|
|
|
/* Set the range of VGA2 VGA2GAIN[4:0], not recommended to be used above 30dB */
|
|
this->vga2_range = osmosdr::gain_range_t( 0, 60, 3 );
|
|
|
|
this->setup_device();
|
|
this->thread = gr::thread::thread(read_task_dispatch, this);
|
|
}
|
|
|
|
/*
|
|
* Our virtual destructor.
|
|
*/
|
|
bladerf_source_c::~bladerf_source_c ()
|
|
{
|
|
this->set_running(false);
|
|
this->thread.join();
|
|
|
|
/* Close the device */
|
|
bladerf_close( this->dev );
|
|
}
|
|
|
|
void bladerf_source_c::read_task_dispatch(bladerf_source_c *obj)
|
|
{
|
|
obj->read_task();
|
|
}
|
|
|
|
void bladerf_source_c::read_task()
|
|
{
|
|
int16_t si, sq, *next_val;
|
|
ssize_t n_samples;
|
|
size_t n_avail, to_copy;
|
|
|
|
while ( this->is_running() )
|
|
{
|
|
|
|
n_samples = bladerf_read_c16(this->dev, this->raw_sample_buf,
|
|
BLADERF_SAMPLE_BLOCK_SIZE);
|
|
|
|
if (n_samples < 0) {
|
|
std::cerr << "Failed to read samples: "
|
|
<< bladerf_strerror(n_samples) << std::endl;
|
|
this->set_running(false);
|
|
} else {
|
|
if (n_samples != BLADERF_SAMPLE_BLOCK_SIZE) {
|
|
if (n_samples > BLADERF_SAMPLE_BLOCK_SIZE) {
|
|
std::cerr << "Warning: received bloated sample block of "
|
|
<< n_samples << " bytes!"<< std::endl;
|
|
} else {
|
|
std::cerr << "Warning: received truncated sample block of "
|
|
<< n_samples << " bytes!"<< std::endl;
|
|
}
|
|
} else {
|
|
|
|
//std::cerr << "+" << std::flush;
|
|
|
|
next_val = this->raw_sample_buf;
|
|
|
|
this->sample_fifo_lock.lock();
|
|
n_avail = this->sample_fifo->capacity() - this->sample_fifo->size();
|
|
to_copy = (n_avail < (size_t)n_samples ? n_avail : (size_t)n_samples);
|
|
|
|
for (size_t i = 0; i < to_copy; ++i) {
|
|
si = *next_val++ & 0xfff;
|
|
sq = *next_val++ & 0xfff;
|
|
|
|
/* Sign extend the 12-bit IQ values, if needed */
|
|
if( si & 0x800 ) si |= 0xf000;
|
|
if( sq & 0x800 ) sq |= 0xf000;
|
|
|
|
gr_complex sample((float)si * (1.0f/2048.0f),
|
|
(float)sq * (1.0f/2048.0f));
|
|
|
|
this->sample_fifo->push_back(sample);
|
|
}
|
|
|
|
this->sample_fifo_lock.unlock();
|
|
|
|
/* We have made some new samples available to the consumer in work() */
|
|
if (to_copy) {
|
|
this->samples_available.notify_one();
|
|
}
|
|
|
|
/* Indicate overrun, if neccesary */
|
|
if (to_copy < (size_t)n_samples) {
|
|
std::cerr << "O" << std::flush;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/* Main work function, pull samples from the driver */
|
|
int bladerf_source_c::work( int noutput_items,
|
|
gr_vector_const_void_star &input_items,
|
|
gr_vector_void_star &output_items )
|
|
{
|
|
int n_samples_avail;
|
|
|
|
if ( ! this->is_running() )
|
|
return WORK_DONE;
|
|
|
|
if( noutput_items >= 0 ) {
|
|
gr_complex *out = (gr_complex *)output_items[0];
|
|
boost::unique_lock<boost::mutex> lock(this->sample_fifo_lock);
|
|
|
|
/* Wait until we have the requested number of samples */
|
|
n_samples_avail = this->sample_fifo->size();
|
|
|
|
while (n_samples_avail < noutput_items) {
|
|
this->samples_available.wait(lock);
|
|
n_samples_avail = this->sample_fifo->size();
|
|
}
|
|
|
|
for(int i = 0; i < noutput_items; ++i) {
|
|
out[i] = this->sample_fifo->at(0);
|
|
this->sample_fifo->pop_front();
|
|
}
|
|
|
|
//std::cerr << "-" << std::flush;
|
|
}
|
|
|
|
return noutput_items;
|
|
}
|
|
|
|
std::vector<std::string> bladerf_source_c::get_devices()
|
|
{
|
|
return bladerf_common::devices();
|
|
}
|
|
|
|
size_t bladerf_source_c::get_num_channels()
|
|
{
|
|
/* We only support a single channel for each bladeRF */
|
|
return 1;
|
|
}
|
|
|
|
osmosdr::meta_range_t bladerf_source_c::get_sample_rates()
|
|
{
|
|
return this->sample_rates();
|
|
}
|
|
|
|
double bladerf_source_c::set_sample_rate( double rate )
|
|
{
|
|
int ret;
|
|
uint32_t actual;
|
|
/* Set the Si5338 to be 2x this sample rate */
|
|
|
|
/* Check to see if the sample rate is an integer */
|
|
if( (uint32_t)round(rate) == (uint32_t)rate )
|
|
{
|
|
ret = bladerf_set_sample_rate( this->dev, RX, (uint32_t)rate, &actual );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"has failed to set integer rate, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
} else {
|
|
/* TODO: Fractional sample rate */
|
|
ret = bladerf_set_sample_rate( this->dev, RX, (uint32_t)rate, &actual );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"has failed to set fractional rate, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
}
|
|
|
|
return get_sample_rate();
|
|
}
|
|
|
|
double bladerf_source_c::get_sample_rate()
|
|
{
|
|
int ret;
|
|
unsigned int rate = 0;
|
|
|
|
ret = bladerf_get_sample_rate( this->dev, RX, &rate );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"has failed to get sample rate, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return (double)rate;
|
|
}
|
|
|
|
osmosdr::freq_range_t bladerf_source_c::get_freq_range( size_t chan )
|
|
{
|
|
return this->freq_range();
|
|
}
|
|
|
|
double bladerf_source_c::set_center_freq( double freq, size_t chan )
|
|
{
|
|
int ret;
|
|
|
|
/* Check frequency range */
|
|
if( freq < get_freq_range( chan ).start() ||
|
|
freq > get_freq_range( chan ).stop() ) {
|
|
std::cerr << "Failed to set out of bound frequency: " << freq << std::endl;
|
|
} else {
|
|
ret = bladerf_set_frequency( this->dev, RX, (uint32_t)freq );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"failed to set center frequency " +
|
|
boost::lexical_cast<std::string>(freq) +
|
|
", error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
}
|
|
|
|
return get_center_freq( chan );
|
|
}
|
|
|
|
double bladerf_source_c::get_center_freq( size_t chan )
|
|
{
|
|
uint32_t freq;
|
|
int ret;
|
|
|
|
ret = bladerf_get_frequency( this->dev, RX, &freq );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"failed to get center frequency, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return (double)freq;
|
|
}
|
|
|
|
double bladerf_source_c::set_freq_corr( double ppm, size_t chan )
|
|
{
|
|
/* TODO: Write the VCTCXO with a correction value (also changes TX ppm value!) */
|
|
return get_freq_corr( chan );
|
|
}
|
|
|
|
double bladerf_source_c::get_freq_corr( size_t chan )
|
|
{
|
|
/* TODO: Return back the frequency correction in ppm */
|
|
return 0;
|
|
}
|
|
|
|
std::vector<std::string> bladerf_source_c::get_gain_names( size_t chan )
|
|
{
|
|
std::vector< std::string > names;
|
|
|
|
names += "LNA", "VGA1", "VGA2";
|
|
|
|
return names;
|
|
}
|
|
|
|
osmosdr::gain_range_t bladerf_source_c::get_gain_range( size_t chan )
|
|
{
|
|
/* TODO: This is an overall system gain range. Given the LNA, VGA1 and VGA2
|
|
how much total gain can we have in the system */
|
|
return get_gain_range( "LNA", chan ); /* we use only LNA here for now */
|
|
}
|
|
|
|
osmosdr::gain_range_t bladerf_source_c::get_gain_range( const std::string & name, size_t chan )
|
|
{
|
|
osmosdr::gain_range_t range;
|
|
|
|
if( name == "LNA" ) {
|
|
range = this->lna_range;
|
|
} else if( name == "VGA1" ) {
|
|
range = this->vga1_range;
|
|
} else if( name == "VGA2" ) {
|
|
range = this->vga2_range;
|
|
} else {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"requested an invalid gain element " + name );
|
|
}
|
|
|
|
return range;
|
|
}
|
|
|
|
bool bladerf_source_c::set_gain_mode( bool automatic, size_t chan )
|
|
{
|
|
/* TODO: Implement AGC in the FPGA */
|
|
return false;
|
|
}
|
|
|
|
bool bladerf_source_c::get_gain_mode( size_t chan )
|
|
{
|
|
/* TODO: Read back AGC mode */
|
|
return false;
|
|
}
|
|
|
|
double bladerf_source_c::set_gain( double gain, size_t chan )
|
|
{
|
|
/* TODO: This is an overall system gain that has to be set */
|
|
return set_gain( gain, "LNA", chan ); /* we use only LNA here for now */
|
|
}
|
|
|
|
double bladerf_source_c::set_gain( double gain, const std::string & name, size_t chan )
|
|
{
|
|
int ret = 0;
|
|
|
|
if( name == "LNA" ) {
|
|
bladerf_lna_gain g;
|
|
if( gain == 0.0 ) {
|
|
g = LNA_BYPASS;
|
|
} else if( gain == 3.0 ) {
|
|
g = LNA_MID;
|
|
} else if( gain == 6.0 ) {
|
|
g = LNA_MAX;
|
|
} else {
|
|
std::cerr << "Invalid LNA gain requested: " << gain << ", "
|
|
<< "setting to LNA_MAX (6dB)" << std::endl;
|
|
g = LNA_MAX;
|
|
}
|
|
ret = bladerf_set_lna_gain( this->dev, g );
|
|
} else if( name == "VGA1" ) {
|
|
ret = bladerf_set_rxvga1( this->dev, (int)gain );
|
|
} else if( name == "VGA2" ) {
|
|
ret = bladerf_set_rxvga2( this->dev, (int)gain );
|
|
} else {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"requested to set the gain "
|
|
"of an unknown gain element " + name );
|
|
}
|
|
|
|
/* Check for errors */
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"could not set " + name + " gain, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return get_gain( name, chan );
|
|
}
|
|
|
|
double bladerf_source_c::get_gain( size_t chan )
|
|
{
|
|
/* TODO: This is an overall system gain that has to be set */
|
|
return get_gain( "LNA", chan ); /* we use only LNA here for now */
|
|
}
|
|
|
|
double bladerf_source_c::get_gain( const std::string & name, size_t chan )
|
|
{
|
|
int g;
|
|
int ret = 0;
|
|
|
|
if( name == "LNA" ) {
|
|
bladerf_lna_gain lna_g;
|
|
ret = bladerf_get_lna_gain( this->dev, &lna_g );
|
|
g = lna_g == LNA_BYPASS ? 0 : lna_g == LNA_MID ? 3 : 6;
|
|
} else if( name == "VGA1" ) {
|
|
ret = bladerf_get_rxvga1( this->dev, &g );
|
|
} else if( name == "VGA2" ) {
|
|
ret = bladerf_get_rxvga2( this->dev, &g );
|
|
} else {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"requested to get the gain "
|
|
"of an unknown gain element " + name );
|
|
}
|
|
|
|
/* Check for errors */
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"could not get " + name + " gain, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return (double)g;
|
|
}
|
|
|
|
double bladerf_source_c::set_bb_gain( double gain, size_t chan )
|
|
{
|
|
/* TODO: for RX, we should combine VGA1 & VGA2 which both are in BB path */
|
|
osmosdr::gain_range_t bb_gains = get_gain_range( "VGA2", chan );
|
|
|
|
double clip_gain = bb_gains.clip( gain, true );
|
|
gain = set_gain( clip_gain, "VGA2", chan );
|
|
|
|
return gain;
|
|
}
|
|
|
|
std::vector< std::string > bladerf_source_c::get_antennas( size_t chan )
|
|
{
|
|
std::vector< std::string > antennas;
|
|
|
|
antennas += get_antenna( chan );
|
|
|
|
return antennas;
|
|
}
|
|
|
|
std::string bladerf_source_c::set_antenna( const std::string & antenna, size_t chan )
|
|
{
|
|
return get_antenna( chan );
|
|
}
|
|
|
|
std::string bladerf_source_c::get_antenna( size_t chan )
|
|
{
|
|
/* We only have a single receive antenna here */
|
|
return "RX";
|
|
}
|
|
|
|
double bladerf_source_c::set_bandwidth( double bandwidth, size_t chan )
|
|
{
|
|
int ret;
|
|
uint32_t actual;
|
|
|
|
ret = bladerf_set_bandwidth( this->dev, RX, (uint32_t)bandwidth, &actual );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"could not set bandwidth, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return this->get_bandwidth();
|
|
}
|
|
|
|
double bladerf_source_c::get_bandwidth( size_t chan )
|
|
{
|
|
uint32_t bandwidth;
|
|
int ret;
|
|
|
|
ret = bladerf_get_bandwidth( this->dev, RX, &bandwidth );
|
|
if( ret ) {
|
|
throw std::runtime_error( std::string(__FUNCTION__) + " " +
|
|
"could not get bandwidth, error " +
|
|
boost::lexical_cast<std::string>(ret) );
|
|
}
|
|
|
|
return (double)bandwidth;
|
|
}
|
|
|
|
osmosdr::freq_range_t bladerf_source_c::get_bandwidth_range( size_t chan )
|
|
{
|
|
return this->filter_bandwidths();
|
|
}
|