aboutsummaryrefslogtreecommitdiffstats
path: root/lib/sdrplay/sdrplay_source_c.cc
blob: 6c9044bc4b46eb4167806c6578c23c155304cdb1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
/* -*- 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 "sdrplay_source_c.h"
#include <gnuradio/io_signature.h>
#include "osmosdr/source.h"

#include <boost/assign.hpp>
#include <boost/format.hpp>

#include <stdexcept>
#include <iostream>
#include <stdio.h>
#include <math.h>

#include <mirsdrapi-rsp.h>

#include "arg_helpers.h"

#define MAX_SUPPORTED_DEVICES   4

struct sdrplay_dev
{
   int gRdB;
   double gain_dB;
   double fsHz;
   double rfHz;
   mir_sdr_Bw_MHzT bwType;
   mir_sdr_If_kHzT ifType;
   int samplesPerPacket;
   int maxGain;
   int minGain;
   int dcMode;
};

using namespace boost::assign;

#define BYTES_PER_SAMPLE  4 // sdrplay device delivers 16 bit signed IQ data
                            // containing 12 bits of information

#define SDRPLAY_AM_MIN     150e3
#define SDRPLAY_AM_MAX      30e6
#define SDRPLAY_FM_MIN      64e6
#define SDRPLAY_FM_MAX     108e6
#define SDRPLAY_B3_MIN     162e6
#define SDRPLAY_B3_MAX     240e6
#define SDRPLAY_B45_MIN    470e6
#define SDRPLAY_B45_MAX    960e6
#define SDRPLAY_L_MIN     1450e6
#define SDRPLAY_L_MAX     1675e6

#define SDRPLAY_MAX_BUF_SIZE 504

/*
 * Create a new instance of sdrplay_source_c and return
 * a boost shared_ptr.  This is effectively the public constructor.
 */
sdrplay_source_c_sptr
make_sdrplay_source_c (const std::string &args)
{
  return gnuradio::get_initial_sptr(new sdrplay_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
 */
sdrplay_source_c::sdrplay_source_c (const std::string &args)
  : gr::sync_block ("sdrplay_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(false),
    _uninit(false),
    _auto_gain(false)
{
   _dev = (sdrplay_dev_t *)malloc(sizeof(sdrplay_dev_t));
   if (_dev == NULL)
   {
      return;
}
   _dev->fsHz = 2048e3;
   _dev->rfHz = 200e6;
   _dev->bwType = mir_sdr_BW_1_536;
   _dev->ifType = mir_sdr_IF_Zero;
   _dev->samplesPerPacket = 0;
   _dev->dcMode = 0;
   _dev->gRdB = 60;
   set_gain_limits(_dev->rfHz);
   _dev->gain_dB = _dev->maxGain - _dev->gRdB;
   
   _bufi.reserve(SDRPLAY_MAX_BUF_SIZE);
   _bufq.reserve(SDRPLAY_MAX_BUF_SIZE);   

   _buf_mutex.lock();
   _buf_offset = 0;
   _buf_mutex.unlock();
}

/*
 * Our virtual destructor.
 */
sdrplay_source_c::~sdrplay_source_c ()
{
   if (_dev != NULL)
   {
      free(_dev);
      _dev = NULL;
   }
   _buf_mutex.lock();
   if (_running)
   {
      _running = false;
   }
   _uninit = true;
   _buf_mutex.unlock();
}

void sdrplay_source_c::reinit_device()
{
   std::cerr << "reinit_device started" << std::endl;
   _buf_mutex.lock();
   std::cerr << "after mutex.lock" << std::endl;
   if (_running)
   {
      std::cerr << "mir_sdr_Uninit started" << std::endl;
      mir_sdr_Uninit();
   }

   std::cerr << "mir_sdr_Init started" << std::endl;
   mir_sdr_Init(_dev->gRdB, _dev->fsHz / 1e6, _dev->rfHz / 1e6, _dev->bwType, _dev->ifType, &_dev->samplesPerPacket);

   if (_dev->dcMode)
   {
      std::cerr << "mir_sdr_SetDcMode started" << std::endl;
      mir_sdr_SetDcMode(4, 1);
   }

   _buf_offset = 0;
   _buf_mutex.unlock();
   std::cerr << "reinit_device end" << std::endl;
}

void sdrplay_source_c::set_gain_limits(double freq)
{
   if (freq <= SDRPLAY_AM_MAX)
   {
      _dev->minGain = -4;
      _dev->maxGain = 98;
   }
   else if (freq <= SDRPLAY_FM_MAX)
   {
      _dev->minGain = 1;
      _dev->maxGain = 103;
   }
   else if (freq <= SDRPLAY_B3_MAX)
   {
      _dev->minGain = 5;
      _dev->maxGain = 107;
   }
   else if (freq <= SDRPLAY_B45_MAX)
   {
      _dev->minGain = 9;
      _dev->maxGain = 94;
   }
   else if (freq <= SDRPLAY_L_MAX)
   {
      _dev->minGain = 24;
      _dev->maxGain = 105;
   }
}

int sdrplay_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];
   int cnt = noutput_items;
   unsigned int sampNum;
   int grChanged;
   int rfChanged;
   int fsChanged;

   if (_uninit)
   {
      return WORK_DONE;
   }

   if (!_running)
   {
      reinit_device();
      _running = true;
   }

   _buf_mutex.lock();

   if (_buf_offset)
   {
      for (int i = _buf_offset; i < _dev->samplesPerPacket; i++)
      {
         *out++ = gr_complex( float(_bufi[i]) * (1.0f/4096.0f), float(_bufq[i]) * (1.0f/4096.0f) );
      }
      cnt -= (_dev->samplesPerPacket - _buf_offset);
   }

   while ((cnt - _dev->samplesPerPacket) >= 0)
   {
      mir_sdr_ReadPacket(_bufi.data(), _bufq.data(), &sampNum, &grChanged, &rfChanged, &fsChanged);
      for (int i = 0; i < _dev->samplesPerPacket; i++)
      {
         *out++ = gr_complex( float(_bufi[i]) * (1.0f/32768.0f), float(_bufq[i]) * (1.0f/32768.0f) );
      }
      cnt -= _dev->samplesPerPacket;
   }

   _buf_offset = 0;
   if (cnt)
   {
      mir_sdr_ReadPacket(_bufi.data(), _bufq.data(), &sampNum, &grChanged, &rfChanged, &fsChanged);
      for (int i = 0; i < cnt; i++)
      {
         *out++ = gr_complex( float(_bufi[i]) * (1.0f/4096.0f), float(_bufq[i]) * (1.0f/4096.0f) );
      }
      _buf_offset = cnt;
   }
   _buf_mutex.unlock();

   return noutput_items;
}

std::vector<std::string> sdrplay_source_c::get_devices()
{
   std::vector<std::string> devices;
   std::cerr << "get_devices started" << std::endl;

   unsigned int dev_cnt = 0;
   int samplesPerPacket;
   while(mir_sdr_Init(60, 2.048, 200.0, mir_sdr_BW_1_536, mir_sdr_IF_Zero, &samplesPerPacket) == mir_sdr_Success)
   {
      dev_cnt++;
   }

   std::cerr << "Device count: " << dev_cnt << std::endl;

   for (unsigned int i = 0; i < dev_cnt; i++) 
   {
      mir_sdr_Uninit();
      std::string args = "sdrplay=" + boost::lexical_cast< std::string >( i );
      args += ",label='" + std::string("SDRplay RSP") + "'";
      std::cerr << args << std::endl;
      devices.push_back( args );
   }

   std::cerr << "get_devices end" << std::endl;
   return devices;
}

size_t sdrplay_source_c::get_num_channels()
{
   std::cerr << "get_num_channels: 1" << std::endl;
   return 1;
}

osmosdr::meta_range_t sdrplay_source_c::get_sample_rates()
{
   osmosdr::meta_range_t range;

   range += osmosdr::range_t( 2000e3, 12000e3 ); 

   return range;
}

double sdrplay_source_c::set_sample_rate(double rate)
{
   std::cerr << "set_sample_rate start" << std::endl;
   double diff = rate - _dev->fsHz;
   _dev->fsHz = rate;

   std::cerr << "rate = " << rate << std::endl;
   std::cerr << "diff = " << diff << std::endl;
   if (_running) 
   {
      if (fabs(diff) < 10000.0)
      {
         std::cerr << "mir_sdr_SetFs started" << std::endl;
         mir_sdr_SetFs(diff, 0, 0, 0);
      }
      else
      {
         std::cerr << "reinit_device started" << std::endl;
         reinit_device();
      }
   }
   std::cerr << "set_sample_rate end" << std::endl;

   return get_sample_rate();
}

double sdrplay_source_c::get_sample_rate()
{
   if (_running)
   {
      return _dev->fsHz;
   }

//   return 0;
   return _dev->fsHz;
}

osmosdr::freq_range_t sdrplay_source_c::get_freq_range( size_t chan )
{
   osmosdr::freq_range_t range;

   range += osmosdr::range_t( SDRPLAY_AM_MIN,  SDRPLAY_AM_MAX ); /* LW/MW/SW (150 kHz - 30 MHz) */
   range += osmosdr::range_t( SDRPLAY_FM_MIN,  SDRPLAY_FM_MAX ); /* VHF Band II (64 - 108 MHz) */
   range += osmosdr::range_t( SDRPLAY_B3_MIN,  SDRPLAY_B3_MAX ); /* Band III (162 - 240 MHz) */
   range += osmosdr::range_t( SDRPLAY_B45_MIN, SDRPLAY_B45_MAX ); /* Band IV/V (470 - 960 MHz) */
   range += osmosdr::range_t( SDRPLAY_L_MIN,   SDRPLAY_L_MAX ); /* L-Band (1450 - 1675 MHz) */

   return range;
}

double sdrplay_source_c::set_center_freq( double freq, size_t chan )
{
   std::cerr << "set_center_freq start" << std::endl;
   std::cerr << "freq = " << freq << std::endl;
   double diff = freq - _dev->rfHz;
   std::cerr << "diff = " << diff << std::endl;
   _dev->rfHz = freq;
   set_gain_limits(freq);
   if (_running) 
   {
      if (fabs(diff) < 10000.0)
      {
         std::cerr << "mir_sdr_SetRf started" << std::endl;
         mir_sdr_SetRf(diff, 0, 0);
      }
      else
      {
         std::cerr << "reinit_device started" << std::endl;
         reinit_device();
      }
   }

   std::cerr << "set_center_freq end" << std::endl;
   return get_center_freq( chan );
}

double sdrplay_source_c::get_center_freq( size_t chan )
{
   if (_running)
   {
      return _dev->rfHz;
   }

//   return 0;
   return _dev->rfHz;
}

double sdrplay_source_c::set_freq_corr( double ppm, size_t chan )
{
   return get_freq_corr( chan );
}

double sdrplay_source_c::get_freq_corr( size_t chan )
{
   return 0;
}

std::vector<std::string> sdrplay_source_c::get_gain_names( size_t chan )
{
   std::vector< std::string > gains;

   gains += "LNA_MIX_BB";

   return gains;
}

osmosdr::gain_range_t sdrplay_source_c::get_gain_range( size_t chan )
{
   osmosdr::gain_range_t range;

   for (int i = _dev->minGain; i < _dev->maxGain; i++)
   {
      range += osmosdr::range_t( (float)i );
   }

   return range;
}

osmosdr::gain_range_t sdrplay_source_c::get_gain_range( const std::string & name, size_t chan )
{
   return get_gain_range( chan );
}

bool sdrplay_source_c::set_gain_mode( bool automatic, size_t chan )
{
   std::cerr << "set_gain_mode started" << std::endl;
   _auto_gain = automatic;
   std::cerr << "automatic = " << automatic << std::endl;
   if (automatic)
   {
      /* Start AGC */
   }

   std::cerr << "set_gain_mode end" << std::endl;
   return get_gain_mode(chan);
}

bool sdrplay_source_c::get_gain_mode( size_t chan )
{
   return _auto_gain;
}

double sdrplay_source_c::set_gain( double gain, size_t chan )
{
   std::cerr << "set_gain started" << std::endl;
   _dev->gain_dB = gain;
   std::cerr << "gain = " << gain << std::endl;
   if (gain < _dev->minGain)
   {
      _dev->gain_dB = _dev->minGain;
   }
   if (gain > _dev->maxGain)
   {
      _dev->gain_dB = _dev->maxGain;
   }
   _dev->gRdB = (int)(_dev->maxGain - gain);

   if (_running) 
   {
      std::cerr << "mir_sdr_SetGr started" << std::endl;
      mir_sdr_SetGr(_dev->gRdB, 1, 0);
   }

std::cerr << "set_gain end" << std::endl;
return get_gain( chan );
}

double sdrplay_source_c::set_gain( double gain, const std::string & name, size_t chan)
{
   return set_gain( gain, chan );
}

double sdrplay_source_c::get_gain( size_t chan )
{
   if ( _running )
   {
      return _dev->gain_dB;
   }

//   return 0;
   return _dev->gain_dB;
}

double sdrplay_source_c::get_gain( const std::string & name, size_t chan )
{
   return get_gain( chan );
}

std::vector< std::string > sdrplay_source_c::get_antennas( size_t chan )
{
   std::vector< std::string > antennas;

   antennas += get_antenna( chan );

   return antennas;
}

std::string sdrplay_source_c::set_antenna( const std::string & antenna, size_t chan )
{
   return get_antenna( chan );
}

std::string sdrplay_source_c::get_antenna( size_t chan )
{
   return "RX";
}

void sdrplay_source_c::set_dc_offset_mode( int mode, size_t chan )
{
   if ( osmosdr::source::DCOffsetOff == mode ) 
   {
      _dev->dcMode = 0;
      if (_running)
      {
         mir_sdr_SetDcMode(4, 1);
      }
   }
   else if ( osmosdr::source::DCOffsetManual == mode ) 
   {
      std::cerr << "Manual DC correction mode is not implemented." << std::endl;
      _dev->dcMode = 0;
      if (_running)
      {
         mir_sdr_SetDcMode(4, 1);
      }
   }
   else if ( osmosdr::source::DCOffsetAutomatic == mode )
   {
      _dev->dcMode = 1;
      if (_running)
      {
         mir_sdr_SetDcMode(4, 1);
      }
   }
}

void sdrplay_source_c::set_dc_offset( const std::complex<double> &offset, size_t chan )
{
   std::cerr << "Manual DC correction mode is not implemented." << std::endl;
}

double sdrplay_source_c::set_bandwidth( double bandwidth, size_t chan )
{
   if      (bandwidth <= 200e3)  _dev->bwType = mir_sdr_BW_0_200;
   else if (bandwidth <= 300e3)  _dev->bwType = mir_sdr_BW_0_300;
   else if (bandwidth <= 600e3)  _dev->bwType = mir_sdr_BW_0_600;
   else if (bandwidth <= 1536e3) _dev->bwType = mir_sdr_BW_1_536;
   else if (bandwidth <= 5000e3) _dev->bwType = mir_sdr_BW_5_000;
   else if (bandwidth <= 6000e3) _dev->bwType = mir_sdr_BW_6_000;
   else if (bandwidth <= 7000e3) _dev->bwType = mir_sdr_BW_7_000;
   else                          _dev->bwType = mir_sdr_BW_8_000;

   if (_running) 
   {
      reinit_device();
   }

   return get_bandwidth( chan );
}

double sdrplay_source_c::get_bandwidth( size_t chan )
{
   return (double)_dev->bwType * 1000.0;
}

osmosdr::freq_range_t sdrplay_source_c::get_bandwidth_range( size_t chan )
{
   osmosdr::freq_range_t range;

   range += osmosdr::range_t( 200e3 ); 
   range += osmosdr::range_t( 300e3 ); 
   range += osmosdr::range_t( 600e3 ); 
   range += osmosdr::range_t( 1536e3 ); 
   range += osmosdr::range_t( 5000e3 ); 
   range += osmosdr::range_t( 6000e3 ); 
   range += osmosdr::range_t( 7000e3 ); 
   range += osmosdr::range_t( 8000e3 ); 

   return range;
}