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Diffstat (limited to 'lib/miri/miri_source_c.cc')
| -rw-r--r-- | lib/miri/miri_source_c.cc | 451 |
1 files changed, 0 insertions, 451 deletions
diff --git a/lib/miri/miri_source_c.cc b/lib/miri/miri_source_c.cc deleted file mode 100644 index c1b9428..0000000 --- a/lib/miri/miri_source_c.cc +++ /dev/null @@ -1,451 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net> - * Copyright 2012 Steve Markgraf <steve@steve-m.de> - * - * 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 "miri_source_c.h" -#include <gnuradio/io_signature.h> - -#include <boost/assign.hpp> -#include <boost/format.hpp> - -#include <stdexcept> -#include <iostream> -#include <stdio.h> - -#include <mirisdr.h> - -#include "arg_helpers.h" - -using namespace boost::assign; - -#define BUF_SIZE 2304 * 8 * 2 -#define BUF_NUM 15 -#define BUF_SKIP 1 // buffers to skip due to garbage - -#define BYTES_PER_SAMPLE 4 // mirisdr device delivers 16 bit signed IQ data - // containing 12 bits of information - -/* - * Create a new instance of miri_source_c and return - * a boost shared_ptr. This is effectively the public constructor. - */ -miri_source_c_sptr -make_miri_source_c (const std::string &args) -{ - return gnuradio::get_initial_sptr(new miri_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 - */ -miri_source_c::miri_source_c (const std::string &args) - : gr::sync_block ("miri_source_c", - gr::io_signature::make(MIN_IN, MAX_IN, sizeof (gr_complex)), - gr::io_signature::make(MIN_OUT, MAX_OUT, sizeof (gr_complex))), - _running(true), - _auto_gain(false), - _skipped(0) -{ - int ret; - unsigned int dev_index = 0; - - dict_t dict = params_to_dict(args); - - if (dict.count("miri")) - dev_index = boost::lexical_cast< unsigned int >( dict["miri"] ); - - _buf_num = _buf_head = _buf_used = _buf_offset = 0; - _samp_avail = BUF_SIZE / BYTES_PER_SAMPLE; - - if (dict.count("buffers")) - _buf_num = boost::lexical_cast< unsigned int >( dict["buffers"] ); - - if (0 == _buf_num) - _buf_num = BUF_NUM; - - if ( BUF_NUM != _buf_num ) { - std::cerr << "Using " << _buf_num << " buffers of size " << BUF_SIZE << "." - << std::endl; - } - - if ( dev_index >= mirisdr_get_device_count() ) - throw std::runtime_error("Wrong mirisdr device index given."); - - std::cerr << "Using device #" << dev_index << ": " - << mirisdr_get_device_name(dev_index) - << std::endl; - - _dev = NULL; - ret = mirisdr_open( &_dev, dev_index ); - if (ret < 0) - throw std::runtime_error("Failed to open mirisdr device."); -#if 0 - ret = mirisdr_set_sample_rate( _dev, 500000 ); - if (ret < 0) - throw std::runtime_error("Failed to set default samplerate."); - - ret = mirisdr_set_tuner_gain_mode(_dev, int(!_auto_gain)); - if (ret < 0) - throw std::runtime_error("Failed to enable manual gain mode."); -#endif - ret = mirisdr_reset_buffer( _dev ); - if (ret < 0) - throw std::runtime_error("Failed to reset usb buffers."); - - _buf = (unsigned short **) malloc(_buf_num * sizeof(unsigned short *)); - _buf_lens = (unsigned int *) malloc(_buf_num * sizeof(unsigned int)); - - if (_buf && _buf_lens) { - for(unsigned int i = 0; i < _buf_num; ++i) - _buf[i] = (unsigned short *) malloc(BUF_SIZE); - } - - _thread = gr::thread::thread(_mirisdr_wait, this); -} - -/* - * Our virtual destructor. - */ -miri_source_c::~miri_source_c () -{ - if (_dev) { - _running = false; - mirisdr_cancel_async( _dev ); - _thread.join(); - mirisdr_close( _dev ); - _dev = NULL; - } - - if (_buf) { - for(unsigned int i = 0; i < _buf_num; ++i) { - free(_buf[i]); - } - - free(_buf); - _buf = NULL; - free(_buf_lens); - _buf_lens = NULL; - } -} - -void miri_source_c::_mirisdr_callback(unsigned char *buf, uint32_t len, void *ctx) -{ - miri_source_c *obj = (miri_source_c *)ctx; - obj->mirisdr_callback(buf, len); -} - -void miri_source_c::mirisdr_callback(unsigned char *buf, uint32_t len) -{ - if (_skipped < BUF_SKIP) { - _skipped++; - return; - } - - { - std::lock_guard<std::mutex> lock( _buf_mutex ); - - if (len > BUF_SIZE) - throw std::runtime_error("Buffer too small."); - - int buf_tail = (_buf_head + _buf_used) % _buf_num; - memcpy(_buf[buf_tail], buf, len); - _buf_lens[buf_tail] = len; - - if (_buf_used == _buf_num) { - std::cerr << "O" << std::flush; - _buf_head = (_buf_head + 1) % _buf_num; - } else { - _buf_used++; - } - } - - _buf_cond.notify_one(); -} - -void miri_source_c::_mirisdr_wait(miri_source_c *obj) -{ - obj->mirisdr_wait(); -} - -void miri_source_c::mirisdr_wait() -{ - int ret = mirisdr_read_async( _dev, _mirisdr_callback, (void *)this, _buf_num, BUF_SIZE ); - - _running = false; - - if ( ret != 0 ) - std::cerr << "mirisdr_read_async returned with " << ret << std::endl; - - _buf_cond.notify_one(); -} - -int miri_source_c::work( int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items ) -{ - gr_complex *out = (gr_complex *)output_items[0]; - - { - std::unique_lock<std::mutex> lock( _buf_mutex ); - - while (_buf_used < 3 && _running) // collect at least 3 buffers - _buf_cond.wait( lock ); - } - - if (!_running) - return WORK_DONE; - - short *buf = (short *)_buf[_buf_head] + _buf_offset; - - if (noutput_items <= _samp_avail) { - for (int i = 0; i < noutput_items; i++) - *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f), - float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) ); - - _buf_offset += noutput_items * 2; - _samp_avail -= noutput_items; - } else { - for (int i = 0; i < _samp_avail; i++) - *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f), - float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) ); - - { - std::lock_guard<std::mutex> lock( _buf_mutex ); - - _buf_head = (_buf_head + 1) % _buf_num; - _buf_used--; - } - - buf = (short *)_buf[_buf_head]; - - int remaining = noutput_items - _samp_avail; - - for (int i = 0; i < remaining; i++) - *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f), - float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) ); - - _buf_offset = remaining * 2; - _samp_avail = (_buf_lens[_buf_head] / BYTES_PER_SAMPLE) - remaining; - } - - return noutput_items; -} - -std::vector<std::string> miri_source_c::get_devices() -{ - std::vector<std::string> devices; - - for (unsigned int i = 0; i < mirisdr_get_device_count(); i++) { - std::string args = "miri=" + boost::lexical_cast< std::string >( i ); - args += ",label='" + std::string(mirisdr_get_device_name( i )) + "'"; - devices.push_back( args ); - } - - return devices; -} - -size_t miri_source_c::get_num_channels() -{ - return 1; -} - -osmosdr::meta_range_t miri_source_c::get_sample_rates() -{ - osmosdr::meta_range_t range; - - range += osmosdr::range_t( 8000000 ); // known to work - - return range; -} - -double miri_source_c::set_sample_rate(double rate) -{ - if (_dev) { - mirisdr_set_sample_rate( _dev, (uint32_t)rate ); - } - - return get_sample_rate(); -} - -double miri_source_c::get_sample_rate() -{ - if (_dev) - return (double)mirisdr_get_sample_rate( _dev ); - - return 0; -} - -osmosdr::freq_range_t miri_source_c::get_freq_range( size_t chan ) -{ - osmosdr::freq_range_t range; - - range += osmosdr::range_t( 150e3, 30e6 ); /* LW/MW/SW (150 kHz - 30 MHz) */ - range += osmosdr::range_t( 64e6, 108e6 ); /* VHF Band II (64 - 108 MHz) */ - range += osmosdr::range_t( 162e6, 240e6 ); /* Band III (162 - 240 MHz) */ - range += osmosdr::range_t( 470e6, 960e6 ); /* Band IV/V (470 - 960 MHz) */ - range += osmosdr::range_t( 1450e6, 1675e6 ); /* L-Band (1450 - 1675 MHz) */ - - return range; -} - -double miri_source_c::set_center_freq( double freq, size_t chan ) -{ - if (_dev) - mirisdr_set_center_freq( _dev, (uint32_t)freq ); - - return get_center_freq( chan ); -} - -double miri_source_c::get_center_freq( size_t chan ) -{ - if (_dev) - return (double)mirisdr_get_center_freq( _dev ); - - return 0; -} - -double miri_source_c::set_freq_corr( double ppm, size_t chan ) -{ - return get_freq_corr( chan ); -} - -double miri_source_c::get_freq_corr( size_t chan ) -{ - return 0; -} - -std::vector<std::string> miri_source_c::get_gain_names( size_t chan ) -{ - std::vector< std::string > gains; - - gains += "LNA"; - - return gains; -} - -osmosdr::gain_range_t miri_source_c::get_gain_range( size_t chan ) -{ - osmosdr::gain_range_t range; - - if (_dev) { - int count = mirisdr_get_tuner_gains(_dev, NULL); - if (count > 0) { - int* gains = new int[ count ]; - count = mirisdr_get_tuner_gains(_dev, gains); - for (int i = 0; i < count; i++) - range += osmosdr::range_t( gains[i] / 10.0 ); - delete[] gains; - } - } - - return range; -} - -osmosdr::gain_range_t miri_source_c::get_gain_range( const std::string & name, size_t chan ) -{ - return get_gain_range( chan ); -} - -bool miri_source_c::set_gain_mode( bool automatic, size_t chan ) -{ - if (_dev) { - if (!mirisdr_set_tuner_gain_mode(_dev, int(!automatic))) { - _auto_gain = automatic; - } - } - - return get_gain_mode(chan); -} - -bool miri_source_c::get_gain_mode( size_t chan ) -{ - return _auto_gain; -} - -double miri_source_c::set_gain( double gain, size_t chan ) -{ - osmosdr::gain_range_t rf_gains = miri_source_c::get_gain_range( chan ); - - if (_dev) { - mirisdr_set_tuner_gain( _dev, int(rf_gains.clip(gain) * 10.0) ); - } - - return get_gain( chan ); -} - -double miri_source_c::set_gain( double gain, const std::string & name, size_t chan) -{ - return set_gain( gain, chan ); -} - -double miri_source_c::get_gain( size_t chan ) -{ - if ( _dev ) - return ((double)mirisdr_get_tuner_gain( _dev )) / 10.0; - - return 0; -} - -double miri_source_c::get_gain( const std::string & name, size_t chan ) -{ - return get_gain( chan ); -} - -std::vector< std::string > miri_source_c::get_antennas( size_t chan ) -{ - std::vector< std::string > antennas; - - antennas += get_antenna( chan ); - - return antennas; -} - -std::string miri_source_c::set_antenna( const std::string & antenna, size_t chan ) -{ - return get_antenna( chan ); -} - -std::string miri_source_c::get_antenna( size_t chan ) -{ - return "RX"; -} |