lte-uesoftmodem.c 35.5 KB
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/*
 * 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
 */

/*! \file lte-enb.c
 * \brief Top-level threads for eNodeB
 * \author R. Knopp, F. Kaltenberger, Navid Nikaein
 * \date 2012
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr, navid.nikaein@eurecom.fr
 * \note
 * \warning
 */


#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 "PHY/types.h"

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#include "PHY/defs_UE.h"
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#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

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#include "PHY/phy_vars_ue.h"
#include "PHY/LTE_TRANSPORT/transport_vars.h"
#include "SCHED/sched_common_vars.h"
#include "PHY/MODULATION/modulation_vars.h"
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#include "../../SIMU/USER/init_lte.h"

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#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_vars.h"
#include "LAYER2/MAC/mac_proto.h"
#include "RRC/LTE/rrc_vars.h"
#include "PHY_INTERFACE/phy_interface_vars.h"
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#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 "lte-softmodem.h"

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RAN_CONTEXT_t RC;

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/* temporary compilation wokaround (UE/eNB split */
uint16_t sf_ahead;
#ifdef XFORMS
// current status is that every UE has a DL scope for a SINGLE eNB (eNB_id=0)
// at eNB 0, an UL scope for every UE
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
#endif //XFORMS

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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;

uint16_t sf_ahead=2;

char *emul_iface;


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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_eNB = 0;
volatile int             start_UE = 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];



#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;


static LTE_DL_FRAME_PARMS      *frame_parms[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);
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extern void init_UE_stub_single_thread(int nb_inst,int eMBMS_active, int uecap_xer_in, char *emul_iface);
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extern PHY_VARS_UE* init_ue_vars(LTE_DL_FRAME_PARMS *frame_parms,
			  uint8_t UE_id,
			  uint8_t abstraction_flag);


int transmission_mode=1;

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int emulate_rf = 0;
int numerology = 0;
int codingw = 0;
int fepw = 0;
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/* 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;

int oaisim_flag=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(LTE_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"



void exit_fun(const char* s)
{
  int CC_id;

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

  oai_exit = 1;

  for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	if (PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func)
	  PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func(&PHY_vars_UE_g[0][CC_id]->rfdevice);
    }

#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_eNB *phy_vars_eNB = RC.eNB[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_eNB->dlsch[i][0]->Mlimit; j++) {
	phy_vars_eNB->UE_stats[i].dlsch_NAK[k][j]=0;
	phy_vars_eNB->UE_stats[i].dlsch_ACK[k][j]=0;
	phy_vars_eNB->UE_stats[i].dlsch_trials[k][j]=0;
      }

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


      phy_vars_eNB->UE_stats[i].dlsch_sliding_cnt=0;
      phy_vars_eNB->UE_stats[i].dlsch_NAK_round0=0;
      phy_vars_eNB->UE_stats[i].dlsch_mcs_offset=0;
    }
  }
}

static void *scope_thread(void *arg) {
  char stats_buffer[16384];
# ifdef ENABLE_XFORMS_WRITE_STATS
  FILE *UE_stats, *eNB_stats;
# endif
  struct sched_param sched_param;


  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

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

#endif

  while (!oai_exit) {
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    //      dump_ue_stats (PHY_vars_UE_g[0][0], &PHY_vars_UE_g[0][0]->proc.proc_rxtx[0],stats_buffer, 0, mode,rx_input_level_dBm);
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      //fl_set_object_label(form_stats->stats_text, stats_buffer);
      fl_clear_browser(form_stats->stats_text);
      fl_add_browser_line(form_stats->stats_text, stats_buffer);

      phy_scope_UE(form_ue[0],
		   PHY_vars_UE_g[0][0],
		   0,
		   0,7);

  //  printf("%s",stats_buffer);
    }
# ifdef ENABLE_XFORMS_WRITE_STATS

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

# endif
  
  pthread_exit((void*)arg);
}
#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);


  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

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extern int16_t dlsch_demod_shift;
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static void get_options(void) {
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  char logmem_filename[1024] = {0};
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  int CC_id;
  int tddflag, nonbiotflag;
  char *loopfile=NULL;
  int dumpframe;
  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 ;

  set_default_frame_parms(frame_parms);
  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);
  }

  paramdef_t cmdline_uemodeparams[] =CMDLINE_UEMODEPARAMS_DESC;
  paramdef_t cmdline_ueparams[] =CMDLINE_UEPARAMS_DESC;


  config_process_cmdline( cmdline_uemodeparams,sizeof(cmdline_uemodeparams)/sizeof(paramdef_t),NULL);
  config_process_cmdline( cmdline_ueparams,sizeof(cmdline_ueparams)/sizeof(paramdef_t),NULL);
  if (loopfile != NULL) {
      printf("Input file for hardware emulation: %s",loopfile);
      mode=loop_through_memory;
      input_fd = fopen(loopfile,"r");
      AssertFatal(input_fd != NULL,"Please provide a valid input file\n");
  }

  if ( (cmdline_uemodeparams[CMDLINE_CALIBUERX_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue;
  if ( (cmdline_uemodeparams[CMDLINE_CALIBUERXMED_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue_med;
  if ( (cmdline_uemodeparams[CMDLINE_CALIBUERXBYP_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue_byp;
  if (cmdline_uemodeparams[CMDLINE_DEBUGUEPRACH_IDX].uptr)
      if ( *(cmdline_uemodeparams[CMDLINE_DEBUGUEPRACH_IDX].uptr) > 0) mode = debug_prach;
  if (cmdline_uemodeparams[CMDLINE_NOL2CONNECT_IDX].uptr)
      if ( *(cmdline_uemodeparams[CMDLINE_NOL2CONNECT_IDX].uptr) > 0)  mode = no_L2_connect;
  if (cmdline_uemodeparams[CMDLINE_CALIBPRACHTX_IDX].uptr) 
      if ( *(cmdline_uemodeparams[CMDLINE_CALIBPRACHTX_IDX].uptr) > 0) mode = calib_prach_tx; 
  if (dumpframe  > 0)  mode = rx_dump_frame;
  
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    frame_parms[CC_id]->dl_CarrierFreq = downlink_frequency[0][0];
  }
  UE_scan=0;
   

  if (tddflag > 0) {
     for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) 
    	 frame_parms[CC_id]->frame_type = TDD;
  }

  if (frame_parms[0]->N_RB_DL !=0) {
      if ( frame_parms[0]->N_RB_DL < 6 ) {
    	 frame_parms[0]->N_RB_DL = 6;
    	 printf ( "%i: Invalid number of ressource blocks, adjusted to 6\n",frame_parms[0]->N_RB_DL);
      }
      if ( frame_parms[0]->N_RB_DL > 100 ) {
    	 frame_parms[0]->N_RB_DL = 100;
    	 printf ( "%i: Invalid number of ressource blocks, adjusted to 100\n",frame_parms[0]->N_RB_DL);
      }
      if ( frame_parms[0]->N_RB_DL > 50 && frame_parms[0]->N_RB_DL < 100 ) {
    	 frame_parms[0]->N_RB_DL = 50;
    	 printf ( "%i: Invalid number of ressource blocks, adjusted to 50\n",frame_parms[0]->N_RB_DL);
      }
      if ( frame_parms[0]->N_RB_DL > 25 && frame_parms[0]->N_RB_DL < 50 ) {
    	 frame_parms[0]->N_RB_DL = 25;
    	 printf ( "%i: Invalid number of ressource blocks, adjusted to 25\n",frame_parms[0]->N_RB_DL);
      }
      UE_scan = 0;
      frame_parms[0]->N_RB_UL=frame_parms[0]->N_RB_DL;
      for (CC_id=1; CC_id<MAX_NUM_CCs; CC_id++) {
    	  frame_parms[CC_id]->N_RB_DL=frame_parms[0]->N_RB_DL;
    	  frame_parms[CC_id]->N_RB_UL=frame_parms[0]->N_RB_UL;
      }
  }


  for (CC_id=1;CC_id<MAX_NUM_CCs;CC_id++) {
    	tx_max_power[CC_id]=tx_max_power[0];
    	rx_gain[0][CC_id] = rx_gain[0][0];
    	tx_gain[0][CC_id] = tx_gain[0][0];
  }


  if ( !(CONFIG_ISFLAGSET(CONFIG_ABORT))  && (!(CONFIG_ISFLAGSET(CONFIG_NOOOPT))) ) {
    // Here the configuration file is the XER encoded UE capabilities
    // Read it in and store in asn1c data structures
    sprintf(uecap_xer,"%stargets/PROJECTS/GENERIC-LTE-EPC/CONF/UE_config.xml",getenv("OPENAIR_HOME"));
    printf("%s\n",uecap_xer);
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    if(nfapi_mode!=3)
    	uecap_xer_in=1;
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  } /* UE with config file  */
}


void set_default_frame_parms(LTE_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] = (LTE_DL_FRAME_PARMS*) malloc(sizeof(LTE_DL_FRAME_PARMS));
    /* 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] = DEFAULT_DLF; // 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];

    frame_parms[CC_id]->dl_CarrierFreq=downlink_frequency[CC_id][0];

  }

}

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(frame_parms[0]->N_RB_DL == 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(frame_parms[0]->N_RB_DL == 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 (frame_parms[0]->N_RB_DL == 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 (frame_parms[0]->N_RB_DL == 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 (frame_parms[0]->frame_type==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,
	   PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_tx,
	   PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_rx);
    openair0_cfg[card].Mod_id = 0;

    openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;

    openair0_cfg[card].clock_source = clock_source;


    openair0_cfg[card].tx_num_channels=min(2,PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_tx);
    openair0_cfg[card].rx_num_channels=min(2,PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_rx);

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

      if (i<openair0_cfg[card].tx_num_channels)
	openair0_cfg[card].tx_freq[i] = downlink_frequency[0][i]+uplink_frequency_offset[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];
      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];
      openair0_cfg[card].rx_gain[i] = PHY_vars_UE_g[0][0]->rx_total_gain_dB - rx_gain_off;
     

      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]);
    }
  }
}




#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);
}



#endif

746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771


static inline 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);
}

int stop_L1L2(module_id_t enb_id)
{
	return 0;
}


int restart_L1L2(module_id_t enb_id)
{
	return 0;
}

772 773 774 775 776 777 778 779 780 781 782
int main( int argc, char **argv )
{
  int i;
#if defined (XFORMS)
  void *status;
#endif

  int CC_id;
  uint8_t  abstraction_flag=0;
  uint8_t beta_ACK=0,beta_RI=0,beta_CQI=2;

783 784 785 786
  // Default value for the number of UEs. It will hold,
  // if not changed from the command line option --num-ues
  NB_UE_INST=1;

787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813
#if defined (XFORMS)
  int ret;
#endif

  start_background_system();
  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

  PHY_VARS_UE *UE[MAX_NUM_CCs];

  mode = normal_txrx;
  memset(&openair0_cfg[0],0,sizeof(openair0_config_t)*MAX_CARDS);

  memset(tx_max_power,0,sizeof(int)*MAX_NUM_CCs);

  set_latency_target();

  logInit();

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

814 815 816 817
  get_options ();

  printf("NFAPI_MODE value: %d \n", nfapi_mode);

818
  // Not sure if the following is needed here
819 820 821 822 823 824 825 826 827 828
  /*if (CONFIG_ISFLAGSET(CONFIG_ABORT)) {
      if (UE_flag == 0) {
        fprintf(stderr,"Getting configuration failed\n");
        exit(-1);
      }
      else {
        printf("Setting nfapi mode to UE_STUB_OFFNET\n");
        nfapi_mode = 4;
      }
    }*/
829 830 831


#if T_TRACER
832
  T_Config_Init();
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#endif



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


    set_comp_log(HW,      LOG_DEBUG,  LOG_HIGH, 1);
    set_comp_log(PHY,     LOG_INFO,   LOG_HIGH, 1);
    set_comp_log(MAC,     LOG_INFO,   LOG_HIGH, 1);
    set_comp_log(RLC,     LOG_INFO,   LOG_HIGH | FLAG_THREAD, 1);
    set_comp_log(PDCP,    LOG_INFO,   LOG_HIGH, 1);
    set_comp_log(OTG,     LOG_INFO,   LOG_HIGH, 1);
    set_comp_log(RRC,     LOG_INFO,   LOG_HIGH, 1);
#if defined(ENABLE_ITTI)
    set_comp_log(EMU,     LOG_INFO,   LOG_MED, 1);
# if defined(ENABLE_USE_MME)
    set_comp_log(NAS,     LOG_INFO,   LOG_HIGH, 1);
# endif
#endif


  if (ouput_vcd) {
      VCD_SIGNAL_DUMPER_INIT("/tmp/openair_dump_UE.vcd");
  }

  cpuf=get_cpu_freq_GHz();

#if defined(ENABLE_ITTI)

  log_set_instance_type (LOG_INSTANCE_UE);


  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 (frame_parms[0]->frame_type == 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

894
//TTN for D2D
895
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
896 897 898 899 900 901
  printf ("RRC control socket\n");
  rrc_control_socket_init();
  printf ("PDCP PC5S socket\n");
  pdcp_pc5_socket_init();
#endif

902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927
#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);

  // init the parameters
  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
      frame_parms[CC_id]->nb_antennas_tx     = nb_antenna_tx;
      frame_parms[CC_id]->nb_antennas_rx     = nb_antenna_rx;
      frame_parms[CC_id]->nb_antenna_ports_eNB = 1; //initial value overwritten by initial sync later
  }



  printf("Before CC \n");

928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955

  //NB_UE_INST=1;
  NB_INST=1;
  if(nfapi_mode == 3){
	  PHY_vars_UE_g = malloc(sizeof(PHY_VARS_UE**)*NB_UE_INST);
	  	  for (int i=0; i<NB_UE_INST; i++) {
	  		  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	  			PHY_vars_UE_g[i] = malloc(sizeof(PHY_VARS_UE*)*MAX_NUM_CCs);
	  			PHY_vars_UE_g[i][CC_id] = init_ue_vars(frame_parms[CC_id], i,abstraction_flag);

	  			UE[CC_id] = PHY_vars_UE_g[i][CC_id];
	  			printf("PHY_vars_UE_g[inst][%d] = %p\n",CC_id,UE[CC_id]);

	  			if (phy_test==1)
	  				UE[CC_id]->mac_enabled = 0;
	  			else
	  				UE[CC_id]->mac_enabled = 1;
	  		}
	  	  }
  }
  else{


  for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
      //NB_UE_INST=1;
      NB_INST=1;
      PHY_vars_UE_g = malloc(sizeof(PHY_VARS_UE**));
      PHY_vars_UE_g[0] = malloc(sizeof(PHY_VARS_UE*)*MAX_NUM_CCs);
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      PHY_vars_UE_g[0][CC_id] = init_ue_vars(frame_parms[CC_id], 0,abstraction_flag);
      UE[CC_id] = PHY_vars_UE_g[0][CC_id];
      printf("PHY_vars_UE_g[0][%d] = %p\n",CC_id,UE[CC_id]);
959

960 961
      if (phy_test==1)
	UE[CC_id]->mac_enabled = 0;
962
      else
963
	UE[CC_id]->mac_enabled = 1;
964

965 966 967 968 969 970 971 972 973 974 975
      if (UE[CC_id]->mac_enabled == 0) {  //set default UL parameters for testing mode
	for (i=0; i<NUMBER_OF_CONNECTED_eNB_MAX; i++) {
	  UE[CC_id]->pusch_config_dedicated[i].betaOffset_ACK_Index = beta_ACK;
	  UE[CC_id]->pusch_config_dedicated[i].betaOffset_RI_Index  = beta_RI;
	  UE[CC_id]->pusch_config_dedicated[i].betaOffset_CQI_Index = beta_CQI;
	  
	  UE[CC_id]->scheduling_request_config[i].sr_PUCCH_ResourceIndex = 0;
	  UE[CC_id]->scheduling_request_config[i].sr_ConfigIndex = 7+(0%3);
	  UE[CC_id]->scheduling_request_config[i].dsr_TransMax = sr_n4;
	}
      }
976

977 978 979 980
      UE[CC_id]->UE_scan = UE_scan;
      UE[CC_id]->UE_scan_carrier = UE_scan_carrier;
      UE[CC_id]->mode    = mode;
      printf("UE[%d]->mode = %d\n",CC_id,mode);
981 982

      if (UE[CC_id]->mac_enabled == 1) {
983 984 985 986 987 988 989 990
	UE[CC_id]->pdcch_vars[0][0]->crnti = 0x1234;
	UE[CC_id]->pdcch_vars[1][0]->crnti = 0x1234;
      }else {
	UE[CC_id]->pdcch_vars[0][0]->crnti = 0x1235;
	UE[CC_id]->pdcch_vars[1][0]->crnti = 0x1235;
      }
      UE[CC_id]->rx_total_gain_dB =  (int)rx_gain[CC_id][0] + rx_gain_off;
      UE[CC_id]->tx_power_max_dBm = tx_max_power[CC_id];
991

992 993 994 995 996 997 998 999 1000 1001
      if (frame_parms[CC_id]->frame_type==FDD) {
	UE[CC_id]->N_TA_offset = 0;
      }
      else {
	if (frame_parms[CC_id]->N_RB_DL == 100)
	  UE[CC_id]->N_TA_offset = 624;
	else if (frame_parms[CC_id]->N_RB_DL == 50)
	  UE[CC_id]->N_TA_offset = 624/2;
	else if (frame_parms[CC_id]->N_RB_DL == 25)
	  UE[CC_id]->N_TA_offset = 624/4;
1002

1003
    }
1004
    init_openair0();
1005 1006
  }

1007

1008 1009 1010
  printf("Runtime table\n");
  fill_modeled_runtime_table(runtime_phy_rx,runtime_phy_tx);
  cpuf=get_cpu_freq_GHz();
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
  
  
  
#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 (create_tasks_ue(1) < 0) {
      printf("cannot create ITTI tasks\n");
      exit(-1); // need a softer mode
    }
1061
    if(nfapi_mode==3){ // Here we should add another nfapi_mode for the case of Supervised LTE-D2D
1062 1063
    	UE_config_stub_pnf();
    }
1064 1065 1066 1067 1068
    printf("ITTI tasks created\n");
#endif

  // init UE_PF_PO and mutex lock
  pthread_mutex_init(&ue_pf_po_mutex, NULL);
1069
  memset (&UE_PF_PO[0][0], 0, sizeof(UE_PF_PO_t)*MAX_MOBILES_PER_ENB*MAX_NUM_CCs);
1070 1071 1072 1073 1074
  
  mlockall(MCL_CURRENT | MCL_FUTURE);
  
  pthread_cond_init(&sync_cond,NULL);
  pthread_mutex_init(&sync_mutex, NULL);
1075
 
1076 1077 1078
  
  rt_sleep_ns(10*100000000ULL);

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
  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;
      case 3:
        nfapi_mode_str = "UE_STUB_PNF";
        break;
      case 4:
        nfapi_mode_str = "UE_STUB_OFFNET";
        break;
      default:
        nfapi_mode_str = "<UNKNOWN NFAPI MODE>";
        break;
    }
    printf("NFAPI MODE:%s\n", nfapi_mode_str);


1105 1106
  // start the main threads
    int eMBMS_active = 0;
1107 1108 1109 1110 1111

    if (nfapi_mode==3) // UE-STUB-PNF
    {
    	config_sync_var=0;
    	wait_nfapi_init("main?");
1112
    	// Temporarily we will be using single set of threads for multiple UEs.
1113 1114 1115 1116 1117 1118
    	//init_UE_stub(1,eMBMS_active,uecap_xer_in,emul_iface);
    	init_UE_stub_single_thread(NB_UE_INST,eMBMS_active,uecap_xer_in,emul_iface);
    }
    else {
    	init_UE(1,eMBMS_active,uecap_xer_in,0);
    }
1119 1120 1121 1122 1123 1124 1125

    if (phy_test==0) {
      printf("Filling UE band info\n");
      fill_ue_band_info();
      dl_phy_sync_success (0, 0, 0, 1);
    }

1126 1127 1128 1129 1130 1131
    if (nfapi_mode!=3){
    	number_of_cards = 1;
    	for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
    		PHY_vars_UE_g[0][CC_id]->rf_map.card=0;
    		PHY_vars_UE_g[0][CC_id]->rf_map.chain=CC_id+chain_offset;
    	}
1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146
    }


  
  // connect the TX/RX buffers

    for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
      
      
#ifdef OAI_USRP
      UE[CC_id]->hw_timing_advance = timing_advance;
#else
      UE[CC_id]->hw_timing_advance = 160;
#endif
    }
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    if(nfapi_mode!=3) {
    	if (setup_ue_buffers(UE,&openair0_cfg[0])!=0) {
    		printf("Error setting up eNB buffer\n");
    		exit(-1);
    	}
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    }
    
    
    
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    if (input_fd) {
      printf("Reading in from file to antenna buffer %d\n",0);
      if (fread(UE[0]->common_vars.rxdata[0],
		sizeof(int32_t),
		frame_parms[0]->samples_per_tti*10,
		input_fd) != frame_parms[0]->samples_per_tti*10)
	printf("error reading from file\n");
    }
    //p_exmimo_config->framing.tdd_config = TXRXSWITCH_TESTRX;
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#ifdef XFORMS
  int UE_id;
  
  printf("XFORMS\n");

  if (do_forms==1) {
    fl_initialize (&argc, argv, NULL, 0, 0);
    
      form_stats = create_form_stats_form();
      fl_show_form (form_stats->stats_form, FL_PLACE_HOTSPOT, FL_FULLBORDER, "stats");
      UE_id = 0;
      form_ue[UE_id] = create_lte_phy_scope_ue();
      sprintf (title, "LTE DL SCOPE UE");
      fl_show_form (form_ue[UE_id]->lte_phy_scope_ue, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
      
      /*
	if (openair_daq_vars.use_ia_receiver) {
	fl_set_button(form_ue[UE_id]->button_0,1);
	fl_set_object_label(form_ue[UE_id]->button_0, "IA Receiver ON");
	} else {
	fl_set_button(form_ue[UE_id]->button_0,0);
	fl_set_object_label(form_ue[UE_id]->button_0, "IA Receiver OFF");
	}*/
      fl_set_button(form_ue[UE_id]->button_0,0);
      fl_set_object_label(form_ue[UE_id]->button_0, "IA Receiver OFF");
    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);
  }
  
#endif
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  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_ue[0]->lte_phy_scope_ue);
    fl_free_form(form_ue[0]->lte_phy_scope_ue);
  }

#endif

  printf("stopping MODEM threads\n");

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

  pthread_mutex_destroy(&ue_pf_po_mutex);

  // *** Handle per CC_id openair0
  if (PHY_vars_UE_g[0][0]->rfdevice.trx_end_func)
    PHY_vars_UE_g[0][0]->rfdevice.trx_end_func(&PHY_vars_UE_g[0][0]->rfdevice);
  
  if (ouput_vcd)
    VCD_SIGNAL_DUMPER_CLOSE();
  
  if (opt_enabled == 1)
    terminate_opt();
  
  logClean();

  printf("Bye.\n");
  
  return 0;
}