nr-softmodem.c 35.9 KB
Newer Older
Guy De Souza's avatar
Guy De Souza committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

#define _GNU_SOURCE             /* See feature_test_macros(7) */
#include <sched.h>
#include "T.h"
#include "rt_wrapper.h"

#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all

#include "assertions.h"
#include "msc.h"

#include "common/ran_context.h"
#include "common/config/config_userapi.h"
#include "common/utils/load_module_shlib.h"
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all

#include "../../ARCH/COMMON/common_lib.h"
#include "../../ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"

//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all

44
#include "PHY/types.h"
Guy De Souza's avatar
Guy De Souza committed
45
#include "PHY/defs.h"
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
#include "PHY/vars.h"
#include "SCHED/vars.h"
#include "LAYER2/MAC/vars.h"

#include "../../SIMU/USER/init_lte.h"

#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/vars.h"
#include "LAYER2/MAC/proto.h"
#include "RRC/LITE/vars.h"
#include "PHY_INTERFACE/vars.h"

#ifdef SMBV
#include "PHY/TOOLS/smbv.h"
unsigned short config_frames[4] = {2,9,11,13};
#endif
#include "UTIL/LOG/log_extern.h"
#include "UTIL/OTG/otg_tx.h"
#include "UTIL/OTG/otg_externs.h"
#include "UTIL/MATH/oml.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "enb_config.h"
#include "PHY/TOOLS/time_meas.h"

#ifndef OPENAIR2
#include "UTIL/OTG/otg_vars.h"
#endif

#if defined(ENABLE_ITTI)
#include "intertask_interface_init.h"
#include "create_tasks.h"
#endif

#include "system.h"

#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#include "stats.h"
#endif
#include "nr-softmodem.h"

#ifdef XFORMS
// current status is that every UE has a DL scope for a SINGLE eNB (gnb_id=0)
// at eNB 0, an UL scope for every UE
Guy De Souza's avatar
Guy De Souza committed
91

92
93
94
95
96
97
FD_lte_phy_scope_ue  *form_ue[NUMBER_OF_UE_MAX];
FD_lte_phy_scope_enb *form_enb[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
FD_stats_form                  *form_stats=NULL,*form_stats_l2=NULL;
char title[255];
unsigned char                   scope_enb_num_ue = 2;
static pthread_t                forms_thread; //xforms
Guy De Souza's avatar
Guy De Souza committed
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
#endif //XFORMS

pthread_cond_t nfapi_sync_cond;
pthread_mutex_t nfapi_sync_mutex;
int nfapi_sync_var=-1; //!< protected by mutex \ref nfapi_sync_mutex

uint8_t nfapi_mode = 0; // Default to monolithic mode

pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
int sync_var=-1; //!< protected by mutex \ref sync_mutex.
int config_sync_var=-1;

uint16_t runtime_phy_rx[29][6]; // SISO [MCS 0-28][RBs 0-5 : 6, 15, 25, 50, 75, 100]
uint16_t runtime_phy_tx[29][6]; // SISO [MCS 0-28][RBs 0-5 : 6, 15, 25, 50, 75, 100]

#if defined(ENABLE_ITTI)
volatile int             start_gNB = 0;
#endif
volatile int             oai_exit = 0;

static clock_source_t clock_source = internal;
static int wait_for_sync = 0;

unsigned int                    mmapped_dma=0;
int                             single_thread_flag=1;

static int8_t                     threequarter_fs=0;

uint32_t                 downlink_frequency[MAX_NUM_CCs][4];
int32_t                  uplink_frequency_offset[MAX_NUM_CCs][4];

//Temp fix for inexisting NR upper layer
unsigned char NB_gNB_INST = 1;

#if defined(ENABLE_ITTI)
static char                    *itti_dump_file = NULL;
#endif

int UE_scan = 1;
int UE_scan_carrier = 0;
runmode_t mode = normal_txrx;

FILE *input_fd=NULL;


#if MAX_NUM_CCs == 1
rx_gain_t                rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0}};
#else
rx_gain_t                rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain},{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0},{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0},{20,0,0,0}};
#endif

double rx_gain_off = 0.0;

double sample_rate=30.72e6;
double bw = 10.0e6;

static int                      tx_max_power[MAX_NUM_CCs]; /* =  {0,0}*/;

char   rf_config_file[1024];

int chain_offset=0;
int phy_test = 0;
uint8_t usim_test = 0;

uint8_t dci_Format = 0;
uint8_t agregation_Level =0xFF;

uint8_t nb_antenna_tx = 1;
uint8_t nb_antenna_rx = 1;

char ref[128] = "internal";
char channels[128] = "0";

int                      rx_input_level_dBm;

#ifdef XFORMS
extern int                      otg_enabled;
static char                     do_forms=0;
#else
int                             otg_enabled;
#endif
//int                             number_of_cards =   1;


Guy De Souza's avatar
Guy De Souza committed
188
//static NR_DL_FRAME_PARMS      *frame_parms[MAX_NUM_CCs];
189
190
191
192
193
194
195
196
197
198
199
static nfapi_config_request_t *config[MAX_NUM_CCs];
uint32_t target_dl_mcs = 28; //maximum allowed mcs
uint32_t target_ul_mcs = 20;
uint32_t timing_advance = 0;
uint8_t exit_missed_slots=1;
uint64_t num_missed_slots=0; // counter for the number of missed slots


extern void reset_opp_meas(void);
extern void print_opp_meas(void);

Guy De Souza's avatar
Guy De Souza committed
200
extern void init_eNB_afterRU(void);
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

int transmission_mode=1;



/* struct for ethernet specific parameters given in eNB conf file */
eth_params_t *eth_params;

openair0_config_t openair0_cfg[MAX_CARDS];

double cpuf;

extern char uecap_xer[1024];
char uecap_xer_in=0;

threads_t threads= {-1,-1,-1,-1,-1,-1,-1};

/* see file openair2/LAYER2/MAC/main.c for why abstraction_flag is needed
 * this is very hackish - find a proper solution
 */
uint8_t abstraction_flag=0;

/* forward declarations */
void set_default_frame_parms(nfapi_config_request_t *config[MAX_NUM_CCs], NR_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]);

/*---------------------BMC: timespec helpers -----------------------------*/

struct timespec min_diff_time = { .tv_sec = 0, .tv_nsec = 0 };
struct timespec max_diff_time = { .tv_sec = 0, .tv_nsec = 0 };

struct timespec clock_difftime(struct timespec start, struct timespec end) {
  struct timespec temp;
  if ((end.tv_nsec-start.tv_nsec)<0) {
    temp.tv_sec = end.tv_sec-start.tv_sec-1;
    temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
  } else {
    temp.tv_sec = end.tv_sec-start.tv_sec;
    temp.tv_nsec = end.tv_nsec-start.tv_nsec;
  }
  return temp;
}

void print_difftimes(void) {
#ifdef DEBUG
  printf("difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
#else
  LOG_I(HW,"difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
#endif
}

void update_difftimes(struct timespec start, struct timespec end) {
  struct timespec diff_time = { .tv_sec = 0, .tv_nsec = 0 };
  int             changed = 0;
  diff_time = clock_difftime(start, end);
  if ((min_diff_time.tv_nsec == 0) || (diff_time.tv_nsec < min_diff_time.tv_nsec)) {
    min_diff_time.tv_nsec = diff_time.tv_nsec;
    changed = 1;
  }
  if ((max_diff_time.tv_nsec == 0) || (diff_time.tv_nsec > max_diff_time.tv_nsec)) {
    max_diff_time.tv_nsec = diff_time.tv_nsec;
    changed = 1;
  }
#if 1
  if (changed) print_difftimes();
#endif
}

/*------------------------------------------------------------------------*/

unsigned int build_rflocal(int txi, int txq, int rxi, int rxq) {
  return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
}
unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe) {
  return (dcoff_i_rxfe + (dcoff_q_rxfe<<8));
}

#if !defined(ENABLE_ITTI)
void signal_handler(int sig) {
  void *array[10];
  size_t size;

  if (sig==SIGSEGV) {
    // get void*'s for all entries on the stack
    size = backtrace(array, 10);

    // print out all the frames to stderr
    fprintf(stderr, "Error: signal %d:\n", sig);
    backtrace_symbols_fd(array, size, 2);
    exit(-1);
  } else {
    printf("trying to exit gracefully...\n");
    oai_exit = 1;
  }
}
#endif
#define KNRM  "\x1B[0m"
#define KRED  "\x1B[31m"
#define KGRN  "\x1B[32m"
#define KBLU  "\x1B[34m"
#define RESET "\033[0m"

302
303
304
305
306
307
308
309
310
311
312


void exit_fun(const char* s)
{

  int ru_id;

  if (s != NULL) {
    printf("%s %s() Exiting OAI softmodem: %s\n",__FILE__, __FUNCTION__, s);
  }

313
  oai_exit = 1;
314
315
316
317
318
319
320
321
322


    if (RC.ru == NULL)
        exit(-1); // likely init not completed, prevent crash or hang, exit now...
    for (ru_id=0; ru_id<RC.nb_RU;ru_id++) {
      if (RC.ru[ru_id] && RC.ru[ru_id]->rfdevice.trx_end_func)
	RC.ru[ru_id]->rfdevice.trx_end_func(&RC.ru[ru_id]->rfdevice);
      if (RC.ru[ru_id] && RC.ru[ru_id]->ifdevice.trx_end_func)
	RC.ru[ru_id]->ifdevice.trx_end_func(&RC.ru[ru_id]->ifdevice);  
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
    }


#if defined(ENABLE_ITTI)
    sleep(1); //allow lte-softmodem threads to exit first
    itti_terminate_tasks (TASK_UNKNOWN);
#endif


}

#ifdef XFORMS


void reset_stats(FL_OBJECT *button, long arg)
{
  int i,j,k;
  PHY_VARS_gNB *phy_vars_gNB = RC.gNB[0][0];

  for (i=0; i<NUMBER_OF_UE_MAX; i++) {
    for (k=0; k<8; k++) { //harq_processes
      for (j=0; j<phy_vars_gNB->dlsch[i][0]->Mlimit; j++) {
	phy_vars_gNB->UE_stats[i].dlsch_NAK[k][j]=0;
	phy_vars_gNB->UE_stats[i].dlsch_ACK[k][j]=0;
	phy_vars_gNB->UE_stats[i].dlsch_trials[k][j]=0;
      }

      phy_vars_gNB->UE_stats[i].dlsch_l2_errors[k]=0;
      phy_vars_gNB->UE_stats[i].ulsch_errors[k]=0;
      phy_vars_gNB->UE_stats[i].ulsch_consecutive_errors=0;


      phy_vars_gNB->UE_stats[i].dlsch_sliding_cnt=0;
      phy_vars_gNB->UE_stats[i].dlsch_NAK_round0=0;
      phy_vars_gNB->UE_stats[i].dlsch_mcs_offset=0;
    }
  }
}
Guy De Souza's avatar
Guy De Souza committed
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
static void *scope_thread(void *arg) {
 
# ifdef ENABLE_XFORMS_WRITE_STATS
  FILE *gNB_stats;
# endif
  struct sched_param sched_param;
  int UE_id, CC_id;
  int ue_cnt=0;

  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1;
  sched_setscheduler(0, SCHED_FIFO,&sched_param);

  printf("Scope thread has priority %d\n",sched_param.sched_priority);

# ifdef ENABLE_XFORMS_WRITE_STATS

  gNB_stats = fopen("gNB_stats.txt", "w");

#endif

  while (!oai_exit) {

      ue_cnt=0;
      for(UE_id=0; UE_id<NUMBER_OF_UE_MAX; UE_id++) {
	for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	  if ((ue_cnt<scope_enb_num_ue)) {
	    phy_scope_eNB(form_enb[CC_id][ue_cnt],
			  RC.gNB[0][CC_id],
			  UE_id);
	    ue_cnt++;
	  }
	}
      }	
    sleep(1);
  }

  //  printf("%s",stats_buffer);

# ifdef ENABLE_XFORMS_WRITE_STATS

    if (eNB_stats) {
      rewind (gNB_stats);
      fwrite (stats_buffer, 1, len, gNB_stats);
      fclose (gNB_stats);
    }

# endif

  pthread_exit((void*)arg);
Guy De Souza's avatar
Guy De Souza committed
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
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
#endif




#if defined(ENABLE_ITTI)
void *l2l1_task(void *arg) {
  MessageDef *message_p = NULL;
  int         result;

  itti_set_task_real_time(TASK_L2L1);
  itti_mark_task_ready(TASK_L2L1);

    /* Wait for the initialize message */
    printf("Wait for the ITTI initialize message\n");
    do {
      if (message_p != NULL) {
	result = itti_free (ITTI_MSG_ORIGIN_ID(message_p), message_p);
	AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
      }

      itti_receive_msg (TASK_L2L1, &message_p);

      switch (ITTI_MSG_ID(message_p)) {
      case INITIALIZE_MESSAGE:
	/* Start eNB thread */
	LOG_D(EMU, "L2L1 TASK received %s\n", ITTI_MSG_NAME(message_p));
	start_gNB = 1;
	break;

      case TERMINATE_MESSAGE:
	printf("received terminate message\n");
	oai_exit=1;
        start_gNB = 0;
	itti_exit_task ();
	break;

      default:
	LOG_E(EMU, "Received unexpected message %s\n", ITTI_MSG_NAME(message_p));
	break;
      }
    } while (ITTI_MSG_ID(message_p) != INITIALIZE_MESSAGE);

    result = itti_free (ITTI_MSG_ORIGIN_ID(message_p), message_p);
    AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
/* ???? no else but seems to be UE only ??? 
  do {
    // Wait for a message
    itti_receive_msg (TASK_L2L1, &message_p);

    switch (ITTI_MSG_ID(message_p)) {
    case TERMINATE_MESSAGE:
      oai_exit=1;
      itti_exit_task ();
      break;

    case ACTIVATE_MESSAGE:
      start_UE = 1;
      break;

    case DEACTIVATE_MESSAGE:
      start_UE = 0;
      break;

    case MESSAGE_TEST:
      LOG_I(EMU, "Received %s\n", ITTI_MSG_NAME(message_p));
      break;

    default:
      LOG_E(EMU, "Received unexpected message %s\n", ITTI_MSG_NAME(message_p));
      break;
    }

    result = itti_free (ITTI_MSG_ORIGIN_ID(message_p), message_p);
    AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
  } while(!oai_exit);
*/
  return NULL;
}
#endif


static void get_options(void) {
 
  int tddflag, nonbiotflag;
 
  
  uint32_t online_log_messages;
  uint32_t glog_level, glog_verbosity;
  uint32_t start_telnetsrv;

  paramdef_t cmdline_params[] =CMDLINE_PARAMS_DESC ;
  paramdef_t cmdline_logparams[] =CMDLINE_LOGPARAMS_DESC ;

  config_process_cmdline( cmdline_params,sizeof(cmdline_params)/sizeof(paramdef_t),NULL); 

  if (strlen(in_path) > 0) {
      opt_type = OPT_PCAP;
      opt_enabled=1;
      printf("Enabling OPT for PCAP  with the following file %s \n",in_path);
  }
  if (strlen(in_ip) > 0) {
      opt_enabled=1;
      opt_type = OPT_WIRESHARK;
      printf("Enabling OPT for wireshark for local interface");
  }

  config_process_cmdline( cmdline_logparams,sizeof(cmdline_logparams)/sizeof(paramdef_t),NULL);
  if(config_isparamset(cmdline_logparams,CMDLINE_ONLINELOG_IDX)) {
      set_glog_onlinelog(online_log_messages);
  }
  if(config_isparamset(cmdline_logparams,CMDLINE_GLOGLEVEL_IDX)) {
      set_glog(glog_level, -1);
  }
  if(config_isparamset(cmdline_logparams,CMDLINE_GLOGVERBO_IDX)) {
      set_glog(-1, glog_verbosity);
  }
  if (start_telnetsrv) {
     load_module_shlib("telnetsrv",NULL,0);
  }

#if T_TRACER
  paramdef_t cmdline_ttraceparams[] =CMDLINE_TTRACEPARAMS_DESC ;
  config_process_cmdline( cmdline_ttraceparams,sizeof(cmdline_ttraceparams)/sizeof(paramdef_t),NULL);   
#endif

  if ( !(CONFIG_ISFLAGSET(CONFIG_ABORT)) ) {
      memset((void*)&RC,0,sizeof(RC));
      /* Read RC configuration file */
      RCConfig();
      NB_gNB_INST = RC.nb_inst;
      NB_RU	  = RC.nb_RU;
      printf("Configuration: nb_rrc_inst %d, nb_L1_inst %d, nb_ru %d\n",NB_gNB_INST,RC.nb_L1_inst,NB_RU);
   }
}


#if T_TRACER
int T_nowait = 0;     /* by default we wait for the tracer */
int T_port = 2021;    /* default port to listen to to wait for the tracer */
int T_dont_fork = 0;  /* default is to fork, see 'T_init' to understand */
#endif



void set_default_frame_parms(nfapi_config_request_t *config[MAX_NUM_CCs], NR_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]) {

  int CC_id;

  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    frame_parms[CC_id] = (NR_DL_FRAME_PARMS*) malloc(sizeof(NR_DL_FRAME_PARMS));
    config[CC_id] = (nfapi_config_request_t*) malloc(sizeof(nfapi_config_request_t));
    config[CC_id]->subframe_config.numerology_index_mu.value =1;
    config[CC_id]->subframe_config.duplex_mode.value = 1; //FDD
    config[CC_id]->subframe_config.dl_cyclic_prefix_type.value = 0; //NORMAL
    config[CC_id]->rf_config.dl_channel_bandwidth.value = 106;
    config[CC_id]->rf_config.ul_channel_bandwidth.value = 106;
    config[CC_id]->rf_config.tx_antenna_ports.value = 1;
    config[CC_id]->rf_config.rx_antenna_ports.value = 1;
    config[CC_id]->sch_config.physical_cell_id.value = 0;
    ///dl frequency to be filled in

/*  //Set some default values that may be overwritten while reading options
    frame_parms[CC_id]->frame_type          = FDD;
    frame_parms[CC_id]->tdd_config          = 3;
    frame_parms[CC_id]->tdd_config_S        = 0;
    frame_parms[CC_id]->N_RB_DL             = 100;
    frame_parms[CC_id]->N_RB_UL             = 100;
    frame_parms[CC_id]->Ncp                 = NORMAL;
    frame_parms[CC_id]->Ncp_UL              = NORMAL;
    frame_parms[CC_id]->Nid_cell            = 0;
    frame_parms[CC_id]->num_MBSFN_config    = 0;
    frame_parms[CC_id]->nb_antenna_ports_eNB  = 1;
    frame_parms[CC_id]->nb_antennas_tx      = 1;
    frame_parms[CC_id]->nb_antennas_rx      = 1;

    frame_parms[CC_id]->nushift             = 0;

    frame_parms[CC_id]->phich_config_common.phich_resource = oneSixth;
    frame_parms[CC_id]->phich_config_common.phich_duration = normal;
    // UL RS Config
    frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift = 0;//n_DMRS1 set to 0
    frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupHoppingEnabled = 0;
    frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.sequenceHoppingEnabled = 0;
    frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupAssignmentPUSCH = 0;

    frame_parms[CC_id]->prach_config_common.rootSequenceIndex=22;
    frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig=1;
    frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.prach_ConfigIndex=0;
    frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.highSpeedFlag=0;
    frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.prach_FreqOffset=0;

//    downlink_frequency[CC_id][0] = 2680000000; // Use float to avoid issue with frequency over 2^31.
//    downlink_frequency[CC_id][1] = downlink_frequency[CC_id][0];
//    downlink_frequency[CC_id][2] = downlink_frequency[CC_id][0];
//    downlink_frequency[CC_id][3] = downlink_frequency[CC_id][0];
    //printf("Downlink for CC_id %d frequency set to %u\n", CC_id, downlink_frequency[CC_id][0]);
    frame_parms[CC_id]->dl_CarrierFreq=downlink_frequency[CC_id][0];
*/
  }

}

615
/*
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
void init_openair0(void) {

  int card;
  int i;

  for (card=0; card<MAX_CARDS; card++) {

    openair0_cfg[card].mmapped_dma=mmapped_dma;
    openair0_cfg[card].configFilename = NULL;

    if(config[0]->rf_config.dl_channel_bandwidth.value == 100) {
      if (frame_parms[0]->threequarter_fs) {
	openair0_cfg[card].sample_rate=23.04e6;
	openair0_cfg[card].samples_per_frame = 230400;
	openair0_cfg[card].tx_bw = 10e6;
	openair0_cfg[card].rx_bw = 10e6;
      } else {
	openair0_cfg[card].sample_rate=30.72e6;
	openair0_cfg[card].samples_per_frame = 307200;
	openair0_cfg[card].tx_bw = 10e6;
	openair0_cfg[card].rx_bw = 10e6;
      }
    } else if(config[0]->rf_config.dl_channel_bandwidth.value == 50) {
      openair0_cfg[card].sample_rate=15.36e6;
      openair0_cfg[card].samples_per_frame = 153600;
      openair0_cfg[card].tx_bw = 5e6;
      openair0_cfg[card].rx_bw = 5e6;
    } else if (config[0]->rf_config.dl_channel_bandwidth.value == 25) {
      openair0_cfg[card].sample_rate=7.68e6;
      openair0_cfg[card].samples_per_frame = 76800;
      openair0_cfg[card].tx_bw = 2.5e6;
      openair0_cfg[card].rx_bw = 2.5e6;
    } else if (config[0]->rf_config.dl_channel_bandwidth.value == 6) {
      openair0_cfg[card].sample_rate=1.92e6;
      openair0_cfg[card].samples_per_frame = 19200;
      openair0_cfg[card].tx_bw = 1.5e6;
      openair0_cfg[card].rx_bw = 1.5e6;
    }


    if (config[0]->subframe_config.duplex_mode.value==TDD)
      openair0_cfg[card].duplex_mode = duplex_mode_TDD;
    else //FDD
      openair0_cfg[card].duplex_mode = duplex_mode_FDD;

    printf("HW: Configuring card %d, nb_antennas_tx/rx %d/%d\n",card,
Guy De Souza's avatar
Guy De Souza committed
662
663
	   RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value,
	   RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value );
664
665
666
667
668
669
670
    openair0_cfg[card].Mod_id = 0;

    openair0_cfg[card].num_rb_dl=config[0]->rf_config.dl_channel_bandwidth.value;

    openair0_cfg[card].clock_source = clock_source;


Guy De Souza's avatar
Guy De Souza committed
671
672
    openair0_cfg[card].tx_num_channels=min(2,RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value );
    openair0_cfg[card].rx_num_channels=min(2,RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value );
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687

    for (i=0; i<4; i++) {

      if (i<openair0_cfg[card].tx_num_channels)
	openair0_cfg[card].tx_freq[i] = downlink_frequency[0][i] ;
      else
	openair0_cfg[card].tx_freq[i]=0.0;

      if (i<openair0_cfg[card].rx_num_channels)
	openair0_cfg[card].rx_freq[i] =downlink_frequency[0][i] + uplink_frequency_offset[0][i] ;
      else
	openair0_cfg[card].rx_freq[i]=0.0;

      openair0_cfg[card].autocal[i] = 1;
      openair0_cfg[card].tx_gain[i] = tx_gain[0][i];
Guy De Souza's avatar
Guy De Souza committed
688
      openair0_cfg[card].rx_gain[i] = RC.gNB[0][0]->rx_total_gain_dB;
689
690
691
692
693
694
695
696
697


      openair0_cfg[card].configFilename = rf_config_file;
      printf("Card %d, channel %d, Setting tx_gain %f, rx_gain %f, tx_freq %f, rx_freq %f\n",
	     card,i, openair0_cfg[card].tx_gain[i],
	     openair0_cfg[card].rx_gain[i],
	     openair0_cfg[card].tx_freq[i],
	     openair0_cfg[card].rx_freq[i]);
    }
698
  } // for loop on cards 
699
}
700
*/
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731

void wait_RUs(void) {

  LOG_I(PHY,"Waiting for RUs to be configured ... RC.ru_mask:%02lx\n", RC.ru_mask);

  // wait for all RUs to be configured over fronthaul
  pthread_mutex_lock(&RC.ru_mutex);
  while (RC.ru_mask>0) {
    pthread_cond_wait(&RC.ru_cond,&RC.ru_mutex);
    printf("RC.ru_mask:%02lx\n", RC.ru_mask);
  }
  pthread_mutex_unlock(&RC.ru_mutex);

  LOG_I(PHY,"RUs configured\n");
}

void wait_gNBs(void) {

  int i,j;
  int waiting=1;


  while (waiting==1) {
    printf("Waiting for gNB L1 instances to all get configured ... sleeping 50ms (nb_L1_inst %d)\n",RC.nb_L1_inst);
    usleep(50*1000);
    waiting=0;
    for (i=0;i<RC.nb_L1_inst;i++) {

      printf("RC.nb_L1_CC[%d]:%d\n", i, RC.nb_L1_CC[i]);

      for (j=0;j<RC.nb_L1_CC[i];j++) {
Guy De Souza's avatar
Guy De Souza committed
732
	if (RC.gNB[i][j]->configured==0) {
Guy De Souza's avatar
Guy De Souza committed
733
	  waiting=1;
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
	  break;
        } 
      }
    }
  }
  printf("gNB L1 are configured\n");
}

#if defined(ENABLE_ITTI)
/*
 * helper function to terminate a certain ITTI task
 */
void terminate_task(task_id_t task_id, module_id_t mod_id)
{
  LOG_I(ENB_APP, "sending TERMINATE_MESSAGE to task %s (%d)\n", itti_get_task_name(task_id), task_id);
  MessageDef *msg;
  msg = itti_alloc_new_message (ENB_APP, TERMINATE_MESSAGE);
  itti_send_msg_to_task (task_id, ENB_MODULE_ID_TO_INSTANCE(mod_id), msg);
}

//extern void  free_transport(PHY_VARS_gNB *);
Guy De Souza's avatar
Guy De Souza committed
755
extern void  nr_phy_free_RU(RU_t*);
756
757
758

int stop_L1L2(module_id_t gnb_id)
{
Guy De Souza's avatar
Guy De Souza committed
759
  LOG_W(ENB_APP, "stopping nr-softmodem\n");
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
  oai_exit = 1;

  if (!RC.ru) {
    LOG_F(ENB_APP, "no RU configured\n");
    return -1;
  }

  /* stop trx devices, multiple carrier currently not supported by RU */
  if (RC.ru[gnb_id]) {
    if (RC.ru[gnb_id]->rfdevice.trx_stop_func) {
      RC.ru[gnb_id]->rfdevice.trx_stop_func(&RC.ru[gnb_id]->rfdevice);
      LOG_I(ENB_APP, "turned off RU rfdevice\n");
    } else {
      LOG_W(ENB_APP, "can not turn off rfdevice due to missing trx_stop_func callback, proceding anyway!\n");
    }
    if (RC.ru[gnb_id]->ifdevice.trx_stop_func) {
      RC.ru[gnb_id]->ifdevice.trx_stop_func(&RC.ru[gnb_id]->ifdevice);
      LOG_I(ENB_APP, "turned off RU ifdevice\n");
    } else {
      LOG_W(ENB_APP, "can not turn off ifdevice due to missing trx_stop_func callback, proceding anyway!\n");
    }
  } else {
    LOG_W(ENB_APP, "no RU found for index %d\n", gnb_id);
    return -1;
  }

  /* these tasks need to pick up new configuration */
  terminate_task(TASK_RRC_ENB, gnb_id);
  terminate_task(TASK_L2L1, gnb_id);
Guy De Souza's avatar
Guy De Souza committed
789
  LOG_I(ENB_APP, "calling kill_gNB_proc() for instance %d\n", gnb_id);
790
791
792
793
794
  kill_gNB_proc(gnb_id);
  LOG_I(ENB_APP, "calling kill_RU_proc() for instance %d\n", gnb_id);
  kill_RU_proc(gnb_id);
  oai_exit = 0;
  for (int cc_id = 0; cc_id < RC.nb_CC[gnb_id]; cc_id++) {
Guy De Souza's avatar
Guy De Souza committed
795
    //free_transport(RC.gNB[gnb_id][cc_id]);
796
797
    phy_free_nr_gNB(RC.gNB[gnb_id][cc_id]);
  }
Guy De Souza's avatar
Guy De Souza committed
798
  nr_phy_free_RU(RC.ru[gnb_id]);
799
800
801
802
803
  free_lte_top();
  return 0;
}

/*
Guy De Souza's avatar
Guy De Souza committed
804
 * Restart the nr-softmodem after it has been soft-stopped with stop_L1L2()
805
806
807
808
809
810
811
 */
int restart_L1L2(module_id_t gnb_id)
{
  RU_t *ru = RC.ru[gnb_id];
  int cc_id;
  MessageDef *msg_p = NULL;

812
  LOG_W(ENB_APP, "restarting nr-softmodem\n");
813
814
815
816
817
818
819
820
821
822

  /* block threads */
  sync_var = -1;

  for (cc_id = 0; cc_id < RC.nb_L1_CC[gnb_id]; cc_id++) {
    RC.gNB[gnb_id][cc_id]->configured = 0;
  }

  RC.ru_mask |= (1 << ru->idx);
  /* copy the changed frame parameters to the RU */
Guy De Souza's avatar
Guy De Souza committed
823
  /* TODO this should be done for all RUs associated to this gNB */
Guy De Souza's avatar
Guy De Souza committed
824
  memcpy(&ru->nr_frame_parms, &RC.gNB[gnb_id][0]->frame_parms, sizeof(NR_DL_FRAME_PARMS));
825
826
827
828
829
830
831
  set_function_spec_param(RC.ru[gnb_id]);

  LOG_I(ENB_APP, "attempting to create ITTI tasks\n");
  if (itti_create_task (TASK_RRC_ENB, rrc_enb_task, NULL) < 0) {
    LOG_E(RRC, "Create task for RRC eNB failed\n");
    return -1;
  } else {
832
    LOG_I(RRC, "Re-created task for RRC gNB successfully\n");
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
  }
  if (itti_create_task (TASK_L2L1, l2l1_task, NULL) < 0) {
    LOG_E(PDCP, "Create task for L2L1 failed\n");
    return -1;
  } else {
    LOG_I(PDCP, "Re-created task for L2L1 successfully\n");
  }

  /* pass a reconfiguration request which will configure everything down to
   * RC.eNB[i][j]->frame_parms, too */
  msg_p = itti_alloc_new_message(TASK_ENB_APP, RRC_CONFIGURATION_REQ);
  RRC_CONFIGURATION_REQ(msg_p) = RC.rrc[gnb_id]->configuration;
  itti_send_msg_to_task(TASK_RRC_ENB, ENB_MODULE_ID_TO_INSTANCE(gnb_id), msg_p);
  /* TODO XForms might need to be restarted, but it is currently (09/02/18)
   * broken, so we cannot test it */

Guy De Souza's avatar
Guy De Souza committed
849
  wait_gNBs();
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
  init_RU_proc(ru);
  ru->rf_map.card = 0;
  ru->rf_map.chain = 0; /* CC_id + chain_offset;*/
  wait_RUs();
  init_eNB_afterRU();

  printf("Sending sync to all threads\n");
  pthread_mutex_lock(&sync_mutex);
  sync_var=0;
  pthread_cond_broadcast(&sync_cond);
  pthread_mutex_unlock(&sync_mutex);

  return 0;
}
#endif

static  void wait_nfapi_init(char *thread_name) {

  printf( "waiting for NFAPI PNF connection and population of global structure (%s)\n",thread_name);
  pthread_mutex_lock( &nfapi_sync_mutex );
  
  while (nfapi_sync_var<0)
    pthread_cond_wait( &nfapi_sync_cond, &nfapi_sync_mutex );
  
  pthread_mutex_unlock(&nfapi_sync_mutex);
  
  printf( "NFAPI: got sync (%s)\n", thread_name);
877
878
879
880
}

int main( int argc, char **argv )
{
881
882
  int i;
#if defined (XFORMS)
Guy De Souza's avatar
Guy De Souza committed
883
  //void *status;
884
#endif
Guy De Souza's avatar
Guy De Souza committed
885

886
887
888
889
890
  int CC_id;
  int ru_id;
#if defined (XFORMS)
  int ret;
#endif
891

892
893
894
895
896
897
898
899
900
901
  start_background_system();
  ///static configuration for NR at the moment
 if ( load_configmodule(argc,argv) == NULL) {
    exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
  }
      
#ifdef DEBUG_CONSOLE
  setvbuf(stdout, NULL, _IONBF, 0);
  setvbuf(stderr, NULL, _IONBF, 0);
#endif
Guy De Souza's avatar
Guy De Souza committed
902

903
904
  mode = normal_txrx;
  memset(&openair0_cfg[0],0,sizeof(openair0_config_t)*MAX_CARDS);
Guy De Souza's avatar
Guy De Souza committed
905

906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
  memset(tx_max_power,0,sizeof(int)*MAX_NUM_CCs);

  set_latency_target();

  logInit();

  printf("Reading in command-line options\n");

  get_options (); 
  if (CONFIG_ISFLAGSET(CONFIG_ABORT) ) {
      fprintf(stderr,"Getting configuration failed\n");
      exit(-1);
  }


#if T_TRACER
  T_init(T_port, 1-T_nowait, T_dont_fork);
#endif



  //randominit (0);
  set_taus_seed (0);

  printf("configuring for RAU/RRU\n");


  if (ouput_vcd) {
Guy De Souza's avatar
Guy De Souza committed
934
      VCD_SIGNAL_DUMPER_INIT("/tmp/openair_dump_gNB.vcd");
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
  }

  if (opp_enabled ==1) {
    reset_opp_meas();
  }
  cpuf=get_cpu_freq_GHz();

#if defined(ENABLE_ITTI)
  log_set_instance_type (LOG_INSTANCE_ENB);

  printf("ITTI init\n");
  itti_init(TASK_MAX, THREAD_MAX, MESSAGES_ID_MAX, tasks_info, messages_info, messages_definition_xml, itti_dump_file);

  // initialize mscgen log after ITTI
  MSC_INIT(MSC_E_UTRAN, THREAD_MAX+TASK_MAX);
#endif

  if (opt_type != OPT_NONE) {
    radio_type_t radio_type;

    if (config[0]->subframe_config.duplex_mode.value == FDD)
      radio_type = RADIO_TYPE_FDD;
    else
      radio_type = RADIO_TYPE_TDD;

    if (init_opt(in_path, in_ip, NULL, radio_type) == -1)
      LOG_E(OPT,"failed to run OPT \n");
  }

#ifdef PDCP_USE_NETLINK
  printf("PDCP netlink\n");
  netlink_init();
#if defined(PDCP_USE_NETLINK_QUEUES)
  pdcp_netlink_init();
#endif
#endif

#if !defined(ENABLE_ITTI)
  // to make a graceful exit when ctrl-c is pressed
  signal(SIGSEGV, signal_handler);
  signal(SIGINT, signal_handler);
#endif


  check_clock();

#ifndef PACKAGE_VERSION
#  define PACKAGE_VERSION "UNKNOWN-EXPERIMENTAL"
#endif

  LOG_I(HW, "Version: %s\n", PACKAGE_VERSION);




  printf("Before CC \n");

  printf("Runtime table\n");
  fill_modeled_runtime_table(runtime_phy_rx,runtime_phy_tx);


#ifndef DEADLINE_SCHEDULER
  
  printf("NO deadline scheduler\n");
  /* Currently we set affinity for UHD to CPU 0 for eNB/UE and only if number of CPUS >2 */
  
  cpu_set_t cpuset;
  int s;
  char cpu_affinity[1024];
  CPU_ZERO(&cpuset);
#ifdef CPU_AFFINITY
  if (get_nprocs() > 2) {
    CPU_SET(0, &cpuset);
    s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
    if (s != 0) {
      perror( "pthread_setaffinity_np");
      exit_fun("Error setting processor affinity");
    }
    LOG_I(HW, "Setting the affinity of main function to CPU 0, for device library to use CPU 0 only!\n");
  }
#endif
  
  /* Check the actual affinity mask assigned to the thread */
  s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
  if (s != 0) {
    perror( "pthread_getaffinity_np");
    exit_fun("Error getting processor affinity ");
  }
  memset(cpu_affinity, 0 , sizeof(cpu_affinity));
  for (int j = 0; j < CPU_SETSIZE; j++) {
    if (CPU_ISSET(j, &cpuset)) {
      char temp[1024];
      sprintf(temp, " CPU_%d ", j);
      strcat(cpu_affinity, temp);
    }
  }
  LOG_I(HW, "CPU Affinity of main() function is... %s\n", cpu_affinity);
#endif
  

  
  
#if defined(ENABLE_ITTI)
  if (RC.nb_inst > 0)  {
    
    // don't create if node doesn't connect to RRC/S1/GTP
      if (create_tasks(1) < 0) {
        printf("cannot create ITTI tasks\n");
        exit(-1); // need a softer mode
      }
    printf("ITTI tasks created\n");
  }
  else {
    printf("No ITTI, Initializing L1\n");
    RCconfig_L1();
  }
#endif

  /* Start the agent. If it is turned off in the configuration, it won't start */
  RCconfig_flexran();
  for (i = 0; i < RC.nb_L1_inst; i++) {
    flexran_agent_start(i);
  }

  // init UE_PF_PO and mutex lock
  pthread_mutex_init(&ue_pf_po_mutex, NULL);
  memset (&UE_PF_PO[0][0], 0, sizeof(UE_PF_PO_t)*NUMBER_OF_UE_MAX*MAX_NUM_CCs);
  
  mlockall(MCL_CURRENT | MCL_FUTURE);
  
  pthread_cond_init(&sync_cond,NULL);
  pthread_mutex_init(&sync_mutex, NULL);
  
#ifdef XFORMS
Guy De Souza's avatar
Guy De Souza committed
1069

1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
  int UE_id;
  
  printf("XFORMS\n");

  if (do_forms==1) {
    fl_initialize (&argc, argv, NULL, 0, 0);
    
      form_stats_l2 = create_form_stats_form();
      fl_show_form (form_stats_l2->stats_form, FL_PLACE_HOTSPOT, FL_FULLBORDER, "l2 stats");
      form_stats = create_form_stats_form();
      fl_show_form (form_stats->stats_form, FL_PLACE_HOTSPOT, FL_FULLBORDER, "stats");
      
      for(UE_id=0; UE_id<scope_enb_num_ue; UE_id++) {
	for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	  form_enb[CC_id][UE_id] = create_lte_phy_scope_enb();
	  sprintf (title, "LTE UL SCOPE eNB for CC_id %d, UE %d",CC_id,UE_id);
	  fl_show_form (form_enb[CC_id][UE_id]->lte_phy_scope_enb, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
	  
	  if (otg_enabled) {
	    fl_set_button(form_enb[CC_id][UE_id]->button_0,1);
	    fl_set_object_label(form_enb[CC_id][UE_id]->button_0,"DL Traffic ON");
	  } else {
	    fl_set_button(form_enb[CC_id][UE_id]->button_0,0);
	    fl_set_object_label(form_enb[CC_id][UE_id]->button_0,"DL Traffic OFF");
	  }
	} // CC_id
      } // UE_id
    
    ret = pthread_create(&forms_thread, NULL, scope_thread, NULL);
    
    if (ret == 0)
      pthread_setname_np( forms_thread, "xforms" );
    
    printf("Scope thread created, ret=%d\n",ret);
  }
Guy De Souza's avatar
Guy De Souza committed
1105
  
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
#endif
  
  rt_sleep_ns(10*100000000ULL);

  if (nfapi_mode) {

    printf("NFAPI*** - mutex and cond created - will block shortly for completion of PNF connection\n");
    pthread_cond_init(&sync_cond,NULL);
    pthread_mutex_init(&sync_mutex, NULL);
  }
  
  const char *nfapi_mode_str = "<UNKNOWN>";

  switch(nfapi_mode) {
    case 0:
      nfapi_mode_str = "MONOLITHIC";
      break;
    case 1:
      nfapi_mode_str = "PNF";
      break;
    case 2:
      nfapi_mode_str = "VNF";
      break;
    default:
      nfapi_mode_str = "<UNKNOWN NFAPI MODE>";
      break;
  }
  printf("NFAPI MODE:%s\n", nfapi_mode_str);

  if (nfapi_mode==2) // VNF
    wait_nfapi_init("main?");

  printf("START MAIN THREADS\n");
  
  // start the main threads

    number_of_cards = 1;    
    printf("RC.nb_L1_inst:%d\n", RC.nb_L1_inst);
    if (RC.nb_L1_inst > 0) {
      printf("Initializing gNB threads single_thread_flag:%d wait_for_sync:%d\n", single_thread_flag,wait_for_sync);
Guy De Souza's avatar
Guy De Souza committed
1146
      init_gNB(single_thread_flag,wait_for_sync);
1147
1148
1149
    }

    printf("wait_gNBs()\n");
Guy De Souza's avatar
Guy De Souza committed
1150
    wait_gNBs();
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172

    printf("About to Init RU threads RC.nb_RU:%d\n", RC.nb_RU);
    if (RC.nb_RU >0) {
      printf("Initializing RU threads\n");
      init_RU(rf_config_file);
      for (ru_id=0;ru_id<RC.nb_RU;ru_id++) {
	RC.ru[ru_id]->rf_map.card=0;
	RC.ru[ru_id]->rf_map.chain=CC_id+chain_offset;
      }
    }

    config_sync_var=0;

    if (nfapi_mode==1) { // PNF
      wait_nfapi_init("main?");
    }

    printf("wait RUs\n");
    wait_RUs();
    printf("ALL RUs READY!\n");
    printf("RC.nb_RU:%d\n", RC.nb_RU);
    // once all RUs are ready initialize the rest of the gNBs ((dependence on final RU parameters after configuration)
Guy De Souza's avatar
Guy De Souza committed
1173
    printf("ALL RUs ready - init gNBs\n");
1174
1175
1176
1177
1178
1179
1180
1181

    if (nfapi_mode != 1 && nfapi_mode != 2)
    {
      printf("Not NFAPI mode - call init_eNB_afterRU()\n");
      init_eNB_afterRU();
    }
    else
    {
Guy De Souza's avatar
Guy De Souza committed
1182
      printf("NFAPI mode - DO NOT call init_gNB_afterRU()\n");
1183
1184
    }
    
Guy De Souza's avatar
Guy De Souza committed
1185
    printf("ALL RUs ready - ALL gNBs ready\n");
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
  
  
  // connect the TX/RX buffers
 
  
  printf("Sending sync to all threads\n");
  
  pthread_mutex_lock(&sync_mutex);
  sync_var=0;
  pthread_cond_broadcast(&sync_cond);
  pthread_mutex_unlock(&sync_mutex);
  printf("About to call end_configmodule() from %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
  end_configmodule();
  printf("Called end_configmodule() from %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);

  // wait for end of program
  printf("TYPE <CTRL-C> TO TERMINATE\n");
  //getchar();

#if defined(ENABLE_ITTI)
  printf("Entering ITTI signals handler\n");
  itti_wait_tasks_end();
  printf("Returned from ITTI signal handler\n");
  oai_exit=1;
  printf("oai_exit=%d\n",oai_exit);
#else

  while (oai_exit==0)
    rt_sleep_ns(100000000ULL);
  printf("Terminating application - oai_exit=%d\n",oai_exit);

#endif

  // stop threads
#ifdef XFORMS
/*
  printf("waiting for XFORMS thread\n");

  if (do_forms==1) {
    pthread_join(forms_thread,&status);
    fl_hide_form(form_stats->stats_form);
    fl_free_form(form_stats->stats_form);

      fl_hide_form(form_stats_l2->stats_form);
      fl_free_form(form_stats_l2->stats_form);

      for(UE_id=0; UE_id<scope_enb_num_ue; UE_id++) {
	for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	  fl_hide_form(form_enb[CC_id][UE_id]->lte_phy_scope_enb);
	  fl_free_form(form_enb[CC_id][UE_id]->lte_phy_scope_enb);
	}
      }
  }
*/
#endif

  printf("stopping MODEM threads\n");

  // cleanup
    stop_gNB(NB_gNB_INST);
    stop_RU(NB_RU);
    /* release memory used by the RU/gNB threads (incomplete), after all
     * threads have been stopped (they partially use the same memory) */
    for (int inst = 0; inst < NB_gNB_INST; inst++) {
      for (int cc_id = 0; cc_id < RC.nb_CC[inst]; cc_id++) {
Guy De Souza's avatar
Guy De Souza committed
1251
        //free_transport(RC.gNB[inst][cc_id]);
1252
1253
1254
1255
        phy_free_nr_gNB(RC.gNB[inst][cc_id]);
      }
    }
    for (int inst = 0; inst < NB_RU; inst++) {
Guy De Souza's avatar
Guy De Souza committed
1256
      nr_phy_free_RU(RC.ru[inst]);
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
    }
    free_lte_top();


  pthread_cond_destroy(&sync_cond);
  pthread_mutex_destroy(&sync_mutex);

  pthread_cond_destroy(&nfapi_sync_cond);
  pthread_mutex_destroy(&nfapi_sync_mutex);

  pthread_mutex_destroy(&ue_pf_po_mutex);

  // *** Handle per CC_id openair0

    for(ru_id=0; ru_id<NB_RU; ru_id++) {
      if (RC.ru[ru_id]->rfdevice.trx_end_func)
	RC.ru[ru_id]->rfdevice.trx_end_func(&RC.ru[ru_id]->rfdevice);  
      if (RC.ru[ru_id]->ifdevice.trx_end_func)
	RC.ru[ru_id]->ifdevice.trx_end_func(&RC.ru[ru_id]->ifdevice);  

    }
  if (ouput_vcd)
    VCD_SIGNAL_DUMPER_CLOSE();
  
  if (opt_enabled == 1)
    terminate_opt();
  
  logClean();
1285

1286
1287
  printf("Bye.\n");
  
1288
1289
  return 0;
}