GNU Radio block for interfacing with various radio hardware
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gr-osmosdr/lib/hackrf/hackrf_sink_c.h

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/* -*- 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_HACKRF_SINK_C_H
#define INCLUDED_HACKRF_SINK_C_H
#include <gnuradio/thread/thread.h>
#include <gnuradio/sync_block.h>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <libhackrf/hackrf.h>
#include "sink_iface.h"
class hackrf_sink_c;
typedef struct circular_buffer
{
void *buffer; // data buffer
void *buffer_end; // end of data buffer
size_t capacity; // maximum number of items in the buffer
size_t count; // number of items in the buffer
size_t sz; // size of each item in the buffer
void *head; // pointer to head
void *tail; // pointer to tail
} circular_buffer_t;
/*
* 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<hackrf_sink_c> hackrf_sink_c_sptr;
/*!
* \brief Return a shared_ptr to a new instance of hackrf_sink_c.
*
* To avoid accidental use of raw pointers, hackrf_sink_c's
* constructor is private. make_hackrf_sink_c is the public
* interface for creating new instances.
*/
hackrf_sink_c_sptr make_hackrf_sink_c (const std::string & args = "");
class hackrf_sink_c :
public gr::sync_block,
public sink_iface
{
private:
// The friend declaration allows hackrf_make_sink_c to
// access the private constructor.
friend hackrf_sink_c_sptr make_hackrf_sink_c (const std::string & args);
hackrf_sink_c (const std::string & args); // private constructor
public:
~hackrf_sink_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();
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 );
double set_if_gain( double gain, size_t chan = 0 );
double set_bb_gain( double gain, 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:
static int _hackrf_tx_callback(hackrf_transfer* transfer);
int hackrf_tx_callback(unsigned char *buffer, uint32_t length);
static void _hackrf_wait(hackrf_sink_c *obj);
void hackrf_wait();
static int _usage;
static boost::mutex _usage_mutex;
hackrf_device *_dev;
// gr::thread::thread _thread;
circular_buffer_t _cbuf;
unsigned char *_buf;
unsigned int _buf_num;
unsigned int _buf_used;
boost::mutex _buf_mutex;
boost::condition_variable _buf_cond;
double _sample_rate;
double _center_freq;
double _freq_corr;
bool _auto_gain;
double _amp_gain;
double _vga_gain;
double _bandwidth;
};
#endif /* INCLUDED_HACKRF_SINK_C_H */