nr-softmodem.c 37.2 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

#define _GNU_SOURCE             /* See feature_test_macros(7) */
#include <sched.h>
25
26


27
#include "T.h"
28

29
30
#include "rt_wrapper.h"

31

32
33
34
35
36
#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"

37
#include "PHY/types.h"
Guy De Souza's avatar
Guy De Souza committed
38
#include "common/ran_context.h"
39
40

#include "PHY/defs_gNB.h"
41
42
43
44
45
46
47
48
49
50
#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

51
52
53
#include "PHY/phy_vars.h"
#include "SCHED/sched_common_vars.h"
#include "LAYER2/MAC/mac_vars.h"
54

55
56
57
58
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_proto.h"
#include "RRC/LTE/rrc_vars.h"
#include "PHY_INTERFACE/phy_interface_vars.h"
ChenWeiTai's avatar
ChenWeiTai committed
59
#include "gnb_config.h"
60

61
62
63
64
#ifdef SMBV
#include "PHY/TOOLS/smbv.h"
unsigned short config_frames[4] = {2,9,11,13};
#endif
65
66
67
68

#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"

69
#include "UTIL/OPT/opt.h"
70

71
//#include "PHY/TOOLS/time_meas.h"
72
73
74
75
76
77

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

#if defined(ENABLE_ITTI)
78
#include "intertask_interface.h"
79
#include "create_nr_tasks.h"
80
81
#endif

82
83
#include "PHY/INIT/phy_init.h"

84
85
86
87
88
89
90
#include "system.h"

#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#include "stats.h"
#endif
#include "nr-softmodem.h"
91
#include "NB_IoT_interface.h"
92
93
94
95

#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
96

97
98
99
100
101
102
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
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
#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}*/;

167
char   rf_config_file[1024]="./targets/ARCH/ADRV9371_ZC706/USERSPACE/PROFILES/gnb.band7.tm1.PRB100.NR40.adrv9371-zc706_HWgain15dB.ini";
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

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
193
//static NR_DL_FRAME_PARMS      *frame_parms[MAX_NUM_CCs];
Guy De Souza's avatar
Guy De Souza committed
194
//static nfapi_nr_config_request_t *config[MAX_NUM_CCs];
195
196
197
198
199
200
201
202
203
204
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
205
extern void init_eNB_afterRU(void);
206
207

int transmission_mode=1;
208
int emulate_rf = 0;
Wang Tsu-Han's avatar
Wang Tsu-Han committed
209
int numerology = 0;
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
char *parallel_config = NULL;
char *worker_config = NULL;

static THREAD_STRUCT thread_struct;
void set_parallel_conf(char *parallel_conf)
{
  if(strcmp(parallel_conf,"PARALLEL_SINGLE_THREAD")==0)           thread_struct.parallel_conf = PARALLEL_SINGLE_THREAD;
  else if(strcmp(parallel_conf,"PARALLEL_RU_L1_SPLIT")==0)        thread_struct.parallel_conf = PARALLEL_RU_L1_SPLIT;
  else if(strcmp(parallel_conf,"PARALLEL_RU_L1_TRX_SPLIT")==0)    thread_struct.parallel_conf = PARALLEL_RU_L1_TRX_SPLIT;
  printf("[CONFIG] parallel conf is set to %d\n",thread_struct.parallel_conf);
} 
void set_worker_conf(char *worker_conf)
{
  if(strcmp(worker_conf,"WORKER_DISABLE")==0)                     thread_struct.worker_conf = WORKER_DISABLE;
  else if(strcmp(worker_conf,"WORKER_ENABLE")==0)                 thread_struct.worker_conf = WORKER_ENABLE;
  printf("[CONFIG] worker conf is set to %d\n",thread_struct.worker_conf);
} 
PARALLEL_CONF_t get_thread_parallel_conf(void)
{
  return thread_struct.parallel_conf;
} 
WORKER_CONF_t get_thread_worker_conf(void)
{
  return thread_struct.worker_conf;
} 
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254


/* 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 */
255
void set_default_frame_parms(nfapi_nr_config_request_t *config[MAX_NUM_CCs], NR_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]);
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

/*---------------------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"

333
334
335
336
337
338
339
340
341
#if defined(ENABLE_ITTI)
void signal_handler_itti(int sig) {
  // Call exit function
  char msg[256];
  memset(msg, 0, 256);
  sprintf(msg, "caught signal %s\n", strsignal(sig));
  exit_function(__FILE__, __FUNCTION__, __LINE__, msg);
}
#endif
342

343
void exit_function(const char* file, const char* function, const int line, const char* s)
344
345
346
347
348
{

  int ru_id;

  if (s != NULL) {
349
    printf("%s:%d %s() Exiting OAI softmodem: %s\n",file,line, function, s);
350
351
  }

352
  oai_exit = 1;
353
354
355
356
357


    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++) {
358
      if (RC.ru[ru_id] && RC.ru[ru_id]->rfdevice.trx_end_func) {
359
	RC.ru[ru_id]->rfdevice.trx_end_func(&RC.ru[ru_id]->rfdevice);
360
361
362
        RC.ru[ru_id]->rfdevice.trx_end_func = NULL;
      }
      if (RC.ru[ru_id] && RC.ru[ru_id]->ifdevice.trx_end_func) {
363
	RC.ru[ru_id]->ifdevice.trx_end_func(&RC.ru[ru_id]->ifdevice);  
364
365
        RC.ru[ru_id]->ifdevice.trx_end_func = NULL;
      }
366
367
368
369
    }


    sleep(1); //allow lte-softmodem threads to exit first
370
#if defined(ENABLE_ITTI)
371
372
    itti_terminate_tasks (TASK_UNKNOWN);
#endif
373
   exit(1);
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

}

#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
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
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],
yilmazt's avatar
yilmazt committed
432
433
			          RC.gNB[0][CC_id],
					  UE_id);
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
	    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
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
#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)) {
567
      set_glog(glog_level);
568
  }
569

570
  if (start_telnetsrv) {
571
    load_module_shlib("telnetsrv",NULL,0,NULL);
572
573
574
575
576
577
578
579
580
581
  }

#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 */
ChenWeiTai's avatar
ChenWeiTai committed
582
583
      NRRCConfig();
      NB_gNB_INST = RC.nb_nr_inst;
584
      NB_RU	  = RC.nb_RU;
ChenWeiTai's avatar
ChenWeiTai committed
585
      printf("Configuration: nb_rrc_inst %d, nb_nr_L1_inst %d, nb_ru %d\n",NB_gNB_INST,RC.nb_nr_L1_inst,NB_RU);
586
   }
587
588
  if(parallel_config != NULL) set_parallel_conf(parallel_config);
  if(worker_config != NULL)   set_worker_conf(worker_config);
589
590
591
592
593
594
595
596
597
598
599
}


#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



600
void set_default_frame_parms(nfapi_nr_config_request_t *config[MAX_NUM_CCs], NR_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]) {
601
602
603
604
605

  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));
606
    config[CC_id] = (nfapi_nr_config_request_t*) malloc(sizeof(nfapi_nr_config_request_t));
607
608
    config[CC_id]->subframe_config.numerology_index_mu.value =1;
    config[CC_id]->subframe_config.duplex_mode.value = 1; //FDD
ChenWeiTai's avatar
ChenWeiTai committed
609
    config[CC_id]->subframe_config.dl_cyclic_prefix_type.value = 0; //NORMAL
610
611
    config[CC_id]->rf_config.dl_carrier_bandwidth.value = 106;
    config[CC_id]->rf_config.ul_carrier_bandwidth.value = 106;
612
613
614
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
    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];
*/
  }

}

658
/*
659
660
661
662
663
664
665
666
667
668
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;

669
    if(config[0]->rf_config.dl_carrier_bandwidth.value == 100) {
670
671
672
673
674
675
676
677
678
679
680
      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;
      }
681
    } else if(config[0]->rf_config.dl_carrier_bandwidth.value == 50) {
682
683
684
685
      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;
686
    } else if (config[0]->rf_config.dl_carrier_bandwidth.value == 25) {
687
688
689
690
      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;
691
    } else if (config[0]->rf_config.dl_carrier_bandwidth.value == 6) {
692
693
694
695
696
697
698
699
700
701
702
703
704
      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
705
706
	   RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value,
	   RC.gNB[0][0]->gNB_config.rf_config.tx_antenna_ports.value );
707
708
    openair0_cfg[card].Mod_id = 0;

709
    openair0_cfg[card].num_rb_dl=config[0]->rf_config.dl_carrier_bandwidth.value;
710
711
712
713

    openair0_cfg[card].clock_source = clock_source;


Guy De Souza's avatar
Guy De Souza committed
714
715
    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 );
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730

    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
731
      openair0_cfg[card].rx_gain[i] = RC.gNB[0][0]->rx_total_gain_dB;
732
733
734
735
736
737
738
739
740


      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]);
    }
741
  } // for loop on cards 
742
}
743
*/
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766

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) {
ChenWeiTai's avatar
ChenWeiTai committed
767
    printf("Waiting for gNB L1 instances to all get configured ... sleeping 50ms (nb_nr_sL1_inst %d)\n",RC.nb_nr_L1_inst);
768
769
    usleep(50*1000);
    waiting=0;
ChenWeiTai's avatar
ChenWeiTai committed
770
    for (i=0;i<RC.nb_nr_L1_inst;i++) {
771

ChenWeiTai's avatar
ChenWeiTai committed
772
      printf("RC.nb_nr_L1_CC[%d]:%d\n", i, RC.nb_nr_L1_CC[i]);
773

ChenWeiTai's avatar
ChenWeiTai committed
774
      for (j=0;j<RC.nb_nr_L1_CC[i];j++) {
Guy De Souza's avatar
Guy De Souza committed
775
	if (RC.gNB[i][j]->configured==0) {
Guy De Souza's avatar
Guy De Souza committed
776
	  waiting=1;
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
	  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
798
extern void  nr_phy_free_RU(RU_t*);
799
800
801

int stop_L1L2(module_id_t gnb_id)
{
Guy De Souza's avatar
Guy De Souza committed
802
  LOG_W(ENB_APP, "stopping nr-softmodem\n");
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
  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
832
  LOG_I(ENB_APP, "calling kill_gNB_proc() for instance %d\n", gnb_id);
833
834
835
836
  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;
ChenWeiTai's avatar
ChenWeiTai committed
837
  for (int cc_id = 0; cc_id < RC.nb_nr_CC[gnb_id]; cc_id++) {
Guy De Souza's avatar
Guy De Souza committed
838
    //free_transport(RC.gNB[gnb_id][cc_id]);
839
840
    phy_free_nr_gNB(RC.gNB[gnb_id][cc_id]);
  }
Guy De Souza's avatar
Guy De Souza committed
841
  nr_phy_free_RU(RC.ru[gnb_id]);
842
843
844
845
846
  free_lte_top();
  return 0;
}

/*
Guy De Souza's avatar
Guy De Souza committed
847
 * Restart the nr-softmodem after it has been soft-stopped with stop_L1L2()
848
849
850
851
852
853
854
 */
int restart_L1L2(module_id_t gnb_id)
{
  RU_t *ru = RC.ru[gnb_id];
  int cc_id;
  MessageDef *msg_p = NULL;

855
  LOG_W(ENB_APP, "restarting nr-softmodem\n");
856
857
858
859

  /* block threads */
  sync_var = -1;

ChenWeiTai's avatar
ChenWeiTai committed
860
  for (cc_id = 0; cc_id < RC.nb_nr_L1_CC[gnb_id]; cc_id++) {
861
862
863
864
865
    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
866
  /* TODO this should be done for all RUs associated to this gNB */
Guy De Souza's avatar
Guy De Souza committed
867
  memcpy(&ru->nr_frame_parms, &RC.gNB[gnb_id][0]->frame_parms, sizeof(NR_DL_FRAME_PARMS));
868
869
870
871
872
873
874
  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 {
875
    LOG_I(RRC, "Re-created task for RRC gNB successfully\n");
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
  }
  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
892
  wait_gNBs();
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
  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);
920
921
922
923
}

int main( int argc, char **argv )
{
924
925
  int i;
#if defined (XFORMS)
Guy De Souza's avatar
Guy De Souza committed
926
  //void *status;
927
#endif
Guy De Souza's avatar
Guy De Souza committed
928

929
930
931
932
933
  int CC_id;
  int ru_id;
#if defined (XFORMS)
  int ret;
#endif
934

935
936
937
938
939
940
941
942
943
944
  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
945

946
947
  mode = normal_txrx;
  memset(&openair0_cfg[0],0,sizeof(openair0_config_t)*MAX_CARDS);
Guy De Souza's avatar
Guy De Souza committed
948

949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
  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
965
  T_Config_Init();
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
#endif



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

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

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

#if defined(ENABLE_ITTI)

  printf("ITTI init\n");
983
984
  itti_init(TASK_MAX, THREAD_MAX, MESSAGES_ID_MAX, tasks_info, messages_info);
  
985
986
987
988
989
  // initialize mscgen log after ITTI
  MSC_INIT(MSC_E_UTRAN, THREAD_MAX+TASK_MAX);
#endif

  if (opt_type != OPT_NONE) {
990
    if (init_opt(in_path, in_ip) == -1)
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
      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)
ChenWeiTai's avatar
ChenWeiTai committed
1068
  if (RC.nb_nr_inst > 0)  {
1069
1070
    
    // don't create if node doesn't connect to RRC/S1/GTP
1071
      if (create_gNB_tasks(1) < 0) {
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
        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 */
ChenWeiTai's avatar
ChenWeiTai committed
1084
  RCconfig_nr_flexran();
ChenWeiTai's avatar
ChenWeiTai committed
1085
  for (i = 0; i < RC.nb_nr_L1_inst; i++) {
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
    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
1099

1100
1101
1102
1103
1104
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
  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
1135
  
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
#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;    
ChenWeiTai's avatar
ChenWeiTai committed
1173
    printf("RC.nb_nr_L1_inst:%d\n", RC.nb_nr_L1_inst);
ChenWeiTai's avatar
ChenWeiTai committed
1174
    if (RC.nb_nr_L1_inst > 0) {
1175
      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
1176
      init_gNB(single_thread_flag,wait_for_sync);
1177
1178
1179
    }

    printf("wait_gNBs()\n");
Guy De Souza's avatar
Guy De Souza committed
1180
    wait_gNBs();
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202

    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
1203
    printf("ALL RUs ready - init gNBs\n");
1204
1205
1206
1207
1208
1209
1210
1211

    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
1212
      printf("NFAPI mode - DO NOT call init_gNB_afterRU()\n");
1213
1214
    }
    
Guy De Souza's avatar
Guy De Souza committed
1215
    printf("ALL RUs ready - ALL gNBs ready\n");
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
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
  
  
  // 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++) {
ChenWeiTai's avatar
ChenWeiTai committed
1280
      for (int cc_id = 0; cc_id < RC.nb_nr_CC[inst]; cc_id++) {
Guy De Souza's avatar
Guy De Souza committed
1281
        //free_transport(RC.gNB[inst][cc_id]);
1282
1283
1284
1285
        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
1286
      nr_phy_free_RU(RC.ru[inst]);
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
    }
    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 (opt_enabled == 1)
    terminate_opt();
  
  logClean();
1313

1314
1315
  printf("Bye.\n");
  
1316
1317
  return 0;
}