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Diffstat (limited to 'lib/miri/miri_source_c.h')
-rw-r--r-- | lib/miri/miri_source_c.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/lib/miri/miri_source_c.h b/lib/miri/miri_source_c.h new file mode 100644 index 0000000..8e00efa --- /dev/null +++ b/lib/miri/miri_source_c.h @@ -0,0 +1,133 @@ +/* -*- c++ -*- */ +/* + * Copyright 2012 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_MIRI_SOURCE_C_H +#define INCLUDED_MIRI_SOURCE_C_H + +#include <gr_sync_block.h> + +#include <gruel/thread.h> +#include <boost/thread/mutex.hpp> +#include <boost/thread/condition_variable.hpp> + +#include "osmosdr_src_iface.h" + +class miri_source_c; +typedef struct mirisdr_dev mirisdr_dev_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<miri_source_c> miri_source_c_sptr; + +/*! + * \brief Return a shared_ptr to a new instance of miri_source_c. + * + * To avoid accidental use of raw pointers, miri_source_c's + * constructor is private. make_miri_source_c is the public + * interface for creating new instances. + */ +miri_source_c_sptr make_miri_source_c (const std::string & args = ""); + +/*! + * \brief Provides a stream of complex samples. + * \ingroup block + */ +class miri_source_c : + public gr_sync_block, + public osmosdr_src_iface +{ +private: + // The friend declaration allows make_miri_source_c to + // access the private constructor. + + friend miri_source_c_sptr make_miri_source_c (const std::string & args); + + /*! + * \brief Provides a stream of complex samples. + */ + miri_source_c (const std::string & args); // private constructor + + public: + ~miri_source_c (); // public destructor + + 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 ); + + 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 _mirisdr_callback(unsigned char *buf, uint32_t len, void *ctx); + void mirisdr_callback(unsigned char *buf, uint32_t len); + static void _mirisdr_wait(miri_source_c *obj); + void mirisdr_wait(); + + mirisdr_dev_t *_dev; + gruel::thread _thread; + unsigned short **_buf; + unsigned int _buf_num; + unsigned int _buf_head; + unsigned int _buf_used; + boost::mutex _buf_mutex; + boost::condition_variable _buf_cond; + bool _running; + + unsigned int _buf_offset; + int _samp_avail; + + bool _auto_gain; + unsigned int _skipped; +}; + +#endif /* INCLUDED_MIRI_SOURCE_C_H */ |