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gr-osmosdr
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cleanup interface & documentation

This commit is contained in:
Dimitri Stolnikov 2012-04-11 23:37:02 +02:00
parent 43b35f0f0d
commit 619d7a5a8b
7 changed files with 523 additions and 158 deletions
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2
include/osmosdr/osmosdr_sink_c.h
View File

@ -48,7 +48,7 @@ typedef boost::shared_ptr<osmosdr_sink_c> osmosdr_sink_c_sptr;
* constructor is private. osmosdr_make_sink_c is the public
* interface for creating new instances.
*/
OSMOSDR_API osmosdr_sink_c_sptr osmosdr_make_sink_c (const std::string & args = "");
OSMOSDR_API osmosdr_sink_c_sptr osmosdr_make_sink_c ( const std::string & args = "" );
/*!
* \brief Takes a stream of complex samples.

181
include/osmosdr/osmosdr_source_c.h
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@ -49,165 +49,162 @@ typedef boost::shared_ptr<osmosdr_source_c> osmosdr_source_c_sptr;
* constructor is private. osmosdr_make_source_c is the public
* interface for creating new instances.
*/
OSMOSDR_API osmosdr_source_c_sptr osmosdr_make_source_c (const std::string & args = "");
OSMOSDR_API osmosdr_source_c_sptr osmosdr_make_source_c ( const std::string & args = "" );
/*!
* \brief Provides a stream of complex samples.
* \ingroup block
*
* \sa osmosdr_sink_c for a version that subclasses gr_hier_block2.
* This uses the preferred technique: subclassing gr_hier_block2.
*/
class OSMOSDR_API osmosdr_source_c : virtual public gr_hier_block2
{
public:
/*!
* Get the possible sample rates for the OsmoSDR device.
* \return a range of rates in Sps
* Get the number of channels the underlying radio hardware offers.
* \return the number of available channels
*/
virtual osmosdr::meta_range_t get_samp_rates( void ) = 0;
virtual size_t get_num_channels( void ) = 0;
/*!
* Set the sample rate for the OsmoSDR device.
* Get the possible sample rates for the underlying radio hardware.
* \return a range of rates in Sps
*/
virtual osmosdr::meta_range_t get_sample_rates( void ) = 0;
/*!
* Set the sample rate for the underlying radio hardware.
* This also will select the appropriate IF bandpass, if applicable.
* \param rate a new rate in Sps
*/
virtual double set_samp_rate( double rate ) = 0;
virtual double set_sample_rate( double rate ) = 0;
/*!
* Get the sample rate for the OsmoSDR device.
* Get the sample rate for the underlying radio hardware.
* This is the actual sample rate and may differ from the rate set.
* \return the actual rate in Sps
*/
virtual double get_samp_rate( void ) = 0;
virtual double get_sample_rate( void ) = 0;
/*!
* Get the tunable frequency range.
* Get the tunable frequency range for the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the frequency range in Hz
*/
virtual osmosdr::freq_range_t get_freq_range( size_t chan = 0 ) = 0;
/*!
* Tune the OsmoSDR device to the desired center frequency.
* Tune the underlying radio hardware to the desired center frequency.
* This also will select the appropriate RF bandpass.
* \param freq the desired frequency in Hz
* \return a tune result with the actual frequencies
* \param chan the channel index 0 to N-1
* \return the actual frequency in Hz
*/
virtual double set_center_freq( double freq, size_t chan = 0 ) = 0;
/*!
* Get the center frequency.
* Get the center frequency the underlying radio hardware is tuned to.
* This is the actual frequency and may differ from the frequency set.
* \param chan the channel index 0 to N-1
* \return the frequency in Hz
*/
virtual double get_center_freq( size_t chan = 0 ) = 0;
/*!
* Set the frequency correction value in parts per million.
* \param ppm the desired correction value in parts per million
* \param chan the channel index 0 to N-1
* \return correction value in parts per million
*/
virtual double set_freq_correction( double ppm, size_t chan = 0 ) = 0;
virtual double set_freq_corr( double ppm, size_t chan = 0 ) = 0;
/*!
* Get the frequency correction value.
* \param chan the channel index 0 to N-1
* \return correction value in parts per million
*/
virtual double get_freq_correction( size_t chan = 0 ) = 0;
virtual double get_freq_corr( size_t chan = 0 ) = 0;
/*!
* Get the actual OsmoSDR gain setting of named stage.
* \return the actual gain in dB
* Get the gain stage names of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return a vector of strings containing the names of gain stages
*/
virtual std::vector<std::string> get_gain_names( size_t chan = 0 ) = 0;
/*!
* Get the settable gain range.
* \param name the name of the gain stage
* Get the settable overall gain range for the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the gain range in dB
*/
virtual osmosdr::gain_range_t get_gain_range( const std::string & name = "", size_t chan = 0 ) = 0;
virtual osmosdr::gain_range_t get_gain_range( size_t chan = 0 ) = 0;
/*!
* Set the gain for the OsmoSDR.
* \param gain the gain in dB
*/
virtual void set_gain( double gain, size_t chan = 0 ) = 0;
/*!
* Set the named gain on the OsmoSDR.
* \param gain the gain in dB
* Get the settable gain range for a specific gain stage.
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the gain range in dB
*/
virtual void set_gain( double gain, const std::string & name = "", size_t chan = 0 ) = 0;
virtual osmosdr::gain_range_t get_gain_range( const std::string & name,
size_t chan = 0 ) = 0;
/*!
* Get the actual OsmoSDR gain setting of a named stage.
* \param name the name of the gain stage
* Set the gain for the underlying radio hardware.
* This function will automatically distribute the desired gain value over
* available gain stages in an appropriate way and return the actual value.
* \param gain the gain in dB
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double get_gain( const std::string & name = "", size_t chan = 0 ) = 0;
virtual double set_gain( double gain, size_t chan = 0 ) = 0;
#if 0
/*!
* Set the named gain on the underlying radio hardware.
* \param gain the gain in dB
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double set_gain( double gain,
const std::string & name,
size_t chan = 0 ) = 0;
/*!
* Get the actual gain setting of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double get_gain( size_t chan = 0 ) = 0;
/*!
* Get the actual gain setting of a named stage.
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double get_gain( const std::string & name, size_t chan = 0 ) = 0;
/*!
* Get the available antennas of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return a vector of strings containing the names of available antennas
*/
virtual std::vector< std::string > get_antennas( size_t chan = 0 ) = 0;
virtual std::string set_antenna( const std::string & antenna, size_t chan = 0 ) = 0;
/*!
* Select the active antenna of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the actual antenna's name
*/
virtual std::string set_antenna( const std::string & antenna,
size_t chan = 0 ) = 0;
/*!
* Get the actual underlying radio hardware antenna setting.
* \param chan the channel index 0 to N-1
* \return antenna the actual antenna's name
*/
virtual std::string get_antenna( size_t chan = 0 ) = 0;
/*!
* Enable/disable the automatic DC offset correction.
* The automatic correction subtracts out the long-run average.
*
* When disabled, the averaging option operation is halted.
* Once halted, the average value will be held constant
* until the user re-enables the automatic correction
* or overrides the value by manually setting the offset.
*
* \param enb true to enable automatic DC offset correction
*/
virtual void set_dc_offset(const bool enb) = 0;
/*!
* Set a constant DC offset value.
* The value is complex to control both I and Q.
* Only set this when automatic correction is disabled.
* \param offset the dc offset (1.0 is full-scale)
*/
virtual void set_dc_offset(const std::complex<double> &offset) = 0;
/*!
* Set the RX frontend IQ imbalance correction.
* Use this to adjust the magnitude and phase of I and Q.
*
* \param correction the complex correction value
*/
virtual void set_iq_balance(const std::complex<double> &correction) = 0;
/*!
* Get the master clock rate.
* \return the clock rate in Hz
*/
virtual double get_clock_rate() = 0;
/*!
* Set the master clock rate.
* \param rate the new rate in Hz
*/
virtual void set_clock_rate(double rate) = 0;
/*!
* Get automatic gain control status
* \return the clock rate in Hz
*/
virtual bool get_agc() = 0;
/*!
* Enable/disable the automatic gain control.
* \param enb true to enable automatic gain control
* \param attack attack time of the AGC circuit
* \param decay decay time of the AGC circuit
*/
virtual void set_agc(bool enb, double attack, double decay) = 0;
/*! TODO: add more */
#endif
};
#endif /* INCLUDED_OSMOSDR_SOURCE_C_H */

64
lib/osmosdr_source_c_impl.cc
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@ -70,67 +70,97 @@ osmosdr_source_c_impl::osmosdr_source_c_impl (const std::string &args)
connect(_src, 0, self(), 0);
}
osmosdr::meta_range_t osmosdr_source_c_impl::get_samp_rates( void )
size_t osmosdr_source_c_impl::get_num_channels()
{
return _src->get_num_channels();
}
double osmosdr_source_c_impl::set_samp_rate( double rate )
osmosdr::meta_range_t osmosdr_source_c_impl::get_sample_rates()
{
return _src->set_sample_rate( rate );
return _src->get_sample_rates();
}
double osmosdr_source_c_impl::get_samp_rate( void )
double osmosdr_source_c_impl::set_sample_rate(double rate)
{
return _src->set_sample_rate(rate);
}
double osmosdr_source_c_impl::get_sample_rate()
{
return _src->get_sample_rate();
}
osmosdr::freq_range_t osmosdr_source_c_impl::get_freq_range( size_t chan )
{
return _src->get_freq_range( chan );
}
double osmosdr_source_c_impl::set_center_freq( double freq, size_t chan )
{
return _src->set_center_freq( freq );
return _src->set_center_freq( freq, chan );
}
double osmosdr_source_c_impl::get_center_freq( size_t chan )
{
return _src->get_center_freq( chan );
}
double osmosdr_source_c_impl::set_freq_correction( double ppm, size_t chan )
double osmosdr_source_c_impl::set_freq_corr( double ppm, size_t chan )
{
return _src->set_freq_corr( ppm, chan );
}
double osmosdr_source_c_impl::get_freq_correction( size_t chan )
double osmosdr_source_c_impl::get_freq_corr( size_t chan )
{
return _src->get_freq_corr( chan );
}
std::vector<std::string> osmosdr_source_c_impl::get_gain_names( size_t chan )
{
return _src->get_gain_names( chan );
}
osmosdr::gain_range_t osmosdr_source_c_impl::get_gain_range( size_t chan )
{
return _src->get_gain_range( chan );
}
osmosdr::gain_range_t osmosdr_source_c_impl::get_gain_range( const std::string & name, size_t chan )
{
return _src->get_gain_range( name, chan );
}
void osmosdr_source_c_impl::set_gain( double gain, size_t chan )
double osmosdr_source_c_impl::set_gain( double gain, size_t chan )
{
_src->set_gain( gain );
return _src->set_gain( gain, chan );
}
void osmosdr_source_c_impl::set_gain( double gain, const std::string & name, size_t chan )
double osmosdr_source_c_impl::set_gain( double gain, const std::string & name, size_t chan)
{
return _src->set_gain( gain, name, chan );
}
double osmosdr_source_c_impl::get_gain( size_t chan )
{
return _src->get_gain( chan );
}
double osmosdr_source_c_impl::get_gain( const std::string & name, size_t chan )
{
return _src->get_gain( name, chan );
}
std::vector< std::string > osmosdr_source_c_impl::get_antennas( size_t chan )
{
return _src->get_antennas( chan );
}
std::string osmosdr_source_c_impl::set_antenna( const std::string & antenna, size_t chan )
{
return _src->set_antenna( antenna, chan );
}
std::string osmosdr_source_c_impl::get_antenna( size_t chan )
{
return _src->get_antenna( chan );
}

26
lib/osmosdr_source_c_impl.h
View File

@ -31,21 +31,29 @@
class OSMOSDR_API osmosdr_source_c_impl : public osmosdr_source_c
{
public:
osmosdr::meta_range_t get_samp_rates( void );
double set_samp_rate( double rate );
double get_samp_rate( void );
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_correction( double ppm, size_t chan = 0 );
double get_freq_correction( 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( const std::string & name = "", size_t chan = 0 );
void set_gain( double gain, size_t chan = 0 );
void set_gain( double gain, const std::string & name = "", size_t chan = 0 );
double get_gain( const std::string & name = "", 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 );
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 );
private:
osmosdr_source_c_impl (const std::string & args); // private constructor

183
lib/osmosdr_src_iface.h Normal file
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@ -0,0 +1,183 @@
/* -*- c++ -*- */
/*
* Copyright 2012 Free Software Foundation, Inc.
* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
*
* 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 OSMOSDR_SRC_IFACE_H
#define OSMOSDR_SRC_IFACE_H
#include <osmosdr_ranges.h>
/*!
* TODO: document
*
*/
class OSMOSDR_API osmosdr_src_iface
{
public:
/*!
* Get the number of channels the underlying radio hardware offers.
* \return the number of available channels
*/
virtual size_t get_num_channels( void ) = 0;
/*!
* Get the possible sample rates for the underlying radio hardware.
* \return a range of rates in Sps
*/
virtual osmosdr::meta_range_t get_sample_rates( void ) = 0;
/*!
* Set the sample rate for the underlying radio hardware.
* This also will select the appropriate IF bandpass, if applicable.
* \param rate a new rate in Sps
*/
virtual double set_sample_rate( double rate ) = 0;
/*!
* Get the sample rate for the underlying radio hardware.
* This is the actual sample rate and may differ from the rate set.
* \return the actual rate in Sps
*/
virtual double get_sample_rate( void ) = 0;
/*!
* Get the tunable frequency range for the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the frequency range in Hz
*/
virtual osmosdr::freq_range_t get_freq_range( size_t chan = 0 ) = 0;
/*!
* Tune the underlying radio hardware to the desired center frequency.
* This also will select the appropriate RF bandpass.
* \param freq the desired frequency in Hz
* \param chan the channel index 0 to N-1
* \return the actual frequency in Hz
*/
virtual double set_center_freq( double freq, size_t chan = 0 ) = 0;
/*!
* Get the center frequency the underlying radio hardware is tuned to.
* This is the actual frequency and may differ from the frequency set.
* \param chan the channel index 0 to N-1
* \return the frequency in Hz
*/
virtual double get_center_freq( size_t chan = 0 ) = 0;
/*!
* Set the frequency correction value in parts per million.
* \param ppm the desired correction value in parts per million
* \param chan the channel index 0 to N-1
* \return correction value in parts per million
*/
virtual double set_freq_corr( double ppm, size_t chan = 0 ) = 0;
/*!
* Get the frequency correction value.
* \param chan the channel index 0 to N-1
* \return correction value in parts per million
*/
virtual double get_freq_corr( size_t chan = 0 ) = 0;
/*!
* Get the gain stage names of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return a vector of strings containing the names of gain stages
*/
virtual std::vector<std::string> get_gain_names( size_t chan = 0 ) = 0;
/*!
* Get the settable overall gain range for the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the gain range in dB
*/
virtual osmosdr::gain_range_t get_gain_range( size_t chan = 0 ) = 0;
/*!
* Get the settable gain range for a specific gain stage.
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the gain range in dB
*/
virtual osmosdr::gain_range_t get_gain_range( const std::string & name,
size_t chan = 0 ) = 0;
/*!
* Set the gain for the underlying radio hardware.
* This function will automatically distribute the desired gain value over
* available gain stages in an appropriate way and return the actual value.
* \param gain the gain in dB
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double set_gain( double gain, size_t chan = 0 ) = 0;
/*!
* Set the named gain on the underlying radio hardware.
* \param gain the gain in dB
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double set_gain( double gain,
const std::string & name,
size_t chan = 0 ) = 0;
/*!
* Get the actual gain setting of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double get_gain( size_t chan = 0 ) = 0;
/*!
* Get the actual gain setting of a named stage.
* \param name the name of the gain stage
* \param chan the channel index 0 to N-1
* \return the actual gain in dB
*/
virtual double get_gain( const std::string & name, size_t chan = 0 ) = 0;
/*!
* Get the available antennas of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return a vector of strings containing the names of available antennas
*/
virtual std::vector< std::string > get_antennas( size_t chan = 0 ) = 0;
/*!
* Select the active antenna of the underlying radio hardware.
* \param chan the channel index 0 to N-1
* \return the actual antenna's name
*/
virtual std::string set_antenna( const std::string & antenna,
size_t chan = 0 ) = 0;
/*!
* Get the actual underlying radio hardware antenna setting.
* \param chan the channel index 0 to N-1
* \return antenna the actual antenna's name
*/
virtual std::string get_antenna( size_t chan = 0 ) = 0;
};
#endif // OSMOSDR_SRC_IFACE_H

194
lib/rtl_source_c.cc
View File

@ -33,12 +33,16 @@
#include <rtl_source_c.h>
#include <gr_io_signature.h>
#include <boost/assign.hpp>
#include <stdexcept>
#include <iostream>
#include <stdio.h>
#include <rtl-sdr.h>
using namespace boost::assign;
/*
* Create a new instance of rtl_source_c and return
* a boost shared_ptr. This is effectively the public constructor.
@ -88,18 +92,24 @@ rtl_source_c::rtl_source_c (const std::string &args)
#endif
}
std::cout << "Opening " << rtlsdr_get_device_name(dev_index) << std::endl;
std::cerr << "Using device #" << dev_index << " "
<< "(" << rtlsdr_get_device_name(dev_index) << ")"
<< std::endl;
_dev = NULL;
ret = rtlsdr_open(&_dev, dev_index);
ret = rtlsdr_open( &_dev, dev_index );
if (ret < 0)
throw std::runtime_error("failed to open rtlsdr device.");
throw std::runtime_error("Failed to open rtlsdr device.");
ret = rtlsdr_reset_buffer(_dev);
ret = rtlsdr_set_sample_rate( _dev, 1024000 );
if (ret < 0)
throw std::runtime_error("failed to reset usb buffers.");
throw std::runtime_error("Failed to set default samplerate.");
// rtlsdr_set_sample_rate( _dev, 2048000 );
ret = rtlsdr_reset_buffer( _dev );
if (ret < 0)
throw std::runtime_error("Failed to reset usb buffers.");
_running = true;
_thread = gruel::thread(_rtlsdr_wait, this);
}
@ -127,21 +137,22 @@ void rtl_source_c::rtlsdr_callback(unsigned char *buf, uint32_t len)
{
unsigned short * sbuf = (unsigned short *)buf;
if (len % 2 != 0) {
printf("len: %d\n", len); fflush(stdout);
}
boost::mutex::scoped_lock lock( _buf_mutex );
if (len % 2 != 0) {
printf("!!! len: %d\n", len); fflush(stdout);
}
for (int i = 0; i < len/2; i++) {
if (!_buf.full()) {
_buf.push_back(sbuf[i]);
_buf_cond.notify_one();
_buf.push_back( sbuf[i] );
} else {
printf("O"); fflush(stdout);
break;
}
}
_buf_cond.notify_one();
}
void rtl_source_c::_rtlsdr_wait(rtl_source_c *obj)
@ -151,11 +162,12 @@ void rtl_source_c::_rtlsdr_wait(rtl_source_c *obj)
void rtl_source_c::rtlsdr_wait()
{
int ret = rtlsdr_wait_async(_dev, _rtlsdr_callback, (void *)this);
if (-10 == ret)
ret = rtlsdr_wait_async(_dev, _rtlsdr_callback, (void *)this);
int ret = rtlsdr_read_async( _dev, _rtlsdr_callback, (void *)this, 0, 0 );
std::cout << "rtlsdr_wait() finished due to " << ret << std::endl;
_running = false;
if ( ret != 0 )
std::cerr << "rtlsdr_read_async returned with " << ret << std::endl;
}
int rtl_source_c::work( int noutput_items,
@ -164,6 +176,9 @@ int rtl_source_c::work( int noutput_items,
{
gr_complex *out = (gr_complex *)output_items[0];
if (!_running)
return WORK_DONE;
int items_left = noutput_items;
while ( items_left )
{
@ -177,53 +192,162 @@ int rtl_source_c::work( int noutput_items,
// convert samples to gr_complex type by using the lookup table
*out++ = _lut[ _buf.front() ];
items_left--;
{
boost::mutex::scoped_lock lock( _buf_mutex );
_buf.pop_front();
}
items_left--;
}
return noutput_items;
}
double rtl_source_c::set_center_freq(double freq)
size_t rtl_source_c::get_num_channels()
{
if (_dev) {
rtlsdr_set_center_freq( _dev, (unsigned int)freq );
return (double)rtlsdr_get_center_freq( _dev );
}
return 0;
return 1;
}
double rtl_source_c::set_sample_rate( double rate )
osmosdr::meta_range_t rtl_source_c::get_sample_rates()
{
osmosdr::meta_range_t range;
range += osmosdr::range_t( 1024000 );
range += osmosdr::range_t( 2048000 );
range += osmosdr::range_t( 3200000 );
// TODO: read from the librtlsdr as soon as the api is available
return range;
}
double rtl_source_c::set_sample_rate(double rate)
{
if (_dev) {
rtlsdr_set_sample_rate( _dev, (unsigned int)rate );
return (double)rtlsdr_get_sample_rate( _dev );
rtlsdr_set_sample_rate( _dev, (uint32_t)rate );
}
return 0;
return get_sample_rate();
}
double rtl_source_c::get_sample_rate()
{
if (_dev)
return (double) rtlsdr_get_sample_rate( _dev );
return (double)rtlsdr_get_sample_rate( _dev );
return 0;
}
double rtl_source_c::set_gain( double gain )
osmosdr::freq_range_t rtl_source_c::get_freq_range( size_t chan )
{
if (_dev) {
rtlsdr_set_tuner_gain( _dev, (unsigned int)gain );
return (double)rtlsdr_get_tuner_gain( _dev );
}
osmosdr::freq_range_t range;
range += osmosdr::range_t( 50e6, 2.2e9, 100 );
// TODO: read from the librtlsdr as soon as the api is available
return range;
}
double rtl_source_c::set_center_freq( double freq, size_t chan )
{
if (_dev)
rtlsdr_set_center_freq( _dev, (uint32_t)freq );
return get_center_freq( chan );
}
double rtl_source_c::get_center_freq( size_t chan )
{
if (_dev)
return (double)rtlsdr_get_center_freq( _dev );
return 0;
}
double rtl_source_c::set_freq_corr( double ppm, size_t chan )
{
if ( _dev )
rtlsdr_set_freq_correction( _dev, (int)ppm );
return get_freq_corr( chan );
}
double rtl_source_c::get_freq_corr( size_t chan )
{
if ( _dev )
return (double)rtlsdr_get_freq_correction( _dev );
return 0;
}
std::vector<std::string> rtl_source_c::get_gain_names( size_t chan )
{
std::vector< std::string > antennas;
antennas += "LNA";
return antennas;
}
osmosdr::gain_range_t rtl_source_c::get_gain_range( size_t chan )
{
osmosdr::gain_range_t range;
range += osmosdr::range_t( -5, 30, 2.5 );
// TODO: read from the librtlsdr as soon as the api is available
return range;
}
osmosdr::gain_range_t rtl_source_c::get_gain_range( const std::string & name, size_t chan )
{
return get_gain_range( chan );
}
double rtl_source_c::set_gain( double gain, size_t chan )
{
if (_dev)
rtlsdr_set_tuner_gain( _dev, gain );
return get_gain( chan );
}
double rtl_source_c::set_gain( double gain, const std::string & name, size_t chan)
{
return set_gain( gain, chan );
}
double rtl_source_c::get_gain( size_t chan )
{
if ( _dev )
return (double)rtlsdr_get_tuner_gain( _dev );
return 0;
}
double rtl_source_c::get_gain( const std::string & name, size_t chan )
{
return get_gain( chan );
}
std::vector< std::string > rtl_source_c::get_antennas( size_t chan )
{
std::vector< std::string > antennas;
antennas += get_antenna( chan );
return antennas;
}
std::string rtl_source_c::set_antenna( const std::string & antenna, size_t chan )
{
return get_antenna( chan );
}
std::string rtl_source_c::get_antenna( size_t chan )
{
return "ANT";
}

31
lib/rtl_source_c.h
View File

@ -30,6 +30,8 @@
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include "osmosdr_src_iface.h"
class rtl_source_c;
typedef struct rtlsdr_dev rtlsdr_dev_t;
@ -60,7 +62,8 @@ OSMOSDR_API rtl_source_c_sptr make_rtl_source_c (const std::string & args = "");
* \ingroup block
*
*/
class OSMOSDR_API rtl_source_c : public gr_sync_block
class OSMOSDR_API rtl_source_c : public gr_sync_block,
public osmosdr_src_iface
{
private:
// The friend declaration allows make_rtl_source_c to
@ -80,10 +83,29 @@ public:
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items );
double set_center_freq( double freq );
size_t get_num_channels( void );
osmosdr::meta_range_t get_sample_rates( void );
double set_sample_rate( double rate );
double get_sample_rate();
double set_gain( double gain );
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 );
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 );
private:
static void _rtlsdr_callback(unsigned char *buf, uint32_t len, void *ctx);
@ -98,6 +120,7 @@ private:
boost::circular_buffer<unsigned short> _buf;
boost::mutex _buf_mutex;
boost::condition_variable _buf_cond;
bool _running;
};
#endif /* INCLUDED_RTLSDR_SOURCE_C_H */