lte-softmodem-stub.c 43 KB
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/*
 * lte-softmodem-stub.c
 *
 *  Created on: Nov 27, 2017
 *      Author: montre
 */


/*
 * 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"

#include "PHY/defs.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

#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"
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#include "targets/COMMON/create_tasks.h"
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//#include "PHY/TOOLS/time_meas.h"

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

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#define D2D_MODE

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

#include "system.h"

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static char *in_ip_xx = in_ip;

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

#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

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

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uint8_t nfapi_mode = 0;
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uint16_t sf_ahead=2;
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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;

static char              UE_flag=0;
unsigned int                    mmapped_dma=0;
int                             single_thread_flag=1;

static char                     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);

extern PHY_VARS_UE* init_ue_vars(LTE_DL_FRAME_PARMS *frame_parms,
			  uint8_t UE_id,
			  uint8_t abstraction_flag);

extern void init_eNB_afterRU(void);
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extern void init_UE_stub(int nb_inst,int,int,char*);
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extern int init_timer_thread(void);

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;

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;

/*---------------------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;
  int ru_id;

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

  oai_exit = 1;

  if (UE_flag==0) {
    for (ru_id=0; ru_id<RC.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);
    }
  }

  for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {

    oai_exit = 1;

    for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
      if (UE_flag == 0) {
      } else {
	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;
  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

  if (UE_flag==1)
    UE_stats  = fopen("UE_stats.txt", "w");
  else
    eNB_stats = fopen("eNB_stats.txt", "w");

#endif

  while (!oai_exit) {
    if (UE_flag==1) {
      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);
      //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);


    } else {
      /*
	if (RC.eNB[0][0]->mac_enabled==1) {
	len = dump_eNB_l2_stats (stats_buffer, 0);
	//fl_set_object_label(form_stats_l2->stats_text, stats_buffer);
	fl_clear_browser(form_stats_l2->stats_text);
	fl_add_browser_line(form_stats_l2->stats_text, stats_buffer);
	}
	len = dump_eNB_stats (RC.eNB[0][0], stats_buffer, 0);

	if (MAX_NUM_CCs>1)
	len += dump_eNB_stats (RC.eNB[0][1], &stats_buffer[len], 0);

	//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);
      */
      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 ((RC.eNB[0][CC_id]->dlsch[UE_id][0]->rnti>0) && (ue_cnt<scope_enb_num_ue)) {
	  if ((ue_cnt<scope_enb_num_ue)) {
	    phy_scope_eNB(form_enb[CC_id][ue_cnt],
			  RC.eNB[0][CC_id],
			  UE_id);
	    ue_cnt++;
	  }
	}
      }

    }

    //printf("doing forms\n");
    //usleep(100000); // 100 ms
    sleep(1);
  }

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

# ifdef ENABLE_XFORMS_WRITE_STATS

  if (UE_flag==1) {
    if (UE_stats) {
      rewind (UE_stats);
      fwrite (stats_buffer, 1, len, UE_stats);
      fclose (UE_stats);
    }
  } else {
    if (eNB_stats) {
      rewind (eNB_stats);
      fwrite (stats_buffer, 1, len, eNB_stats);
      fclose (eNB_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);

  if (UE_flag == 0) {
    /* 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_eNB = 1;
	break;

      case TERMINATE_MESSAGE:
	printf("received terminate message\n");
	oai_exit=1;
	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);
  }

  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

void set_default_frame_parms(LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]);
void set_default_frame_parms(LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]) {

  int CC_id;
  printf("Panos: set_default_frame_parms1 %d \n",MAX_NUM_CCs);

  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] = 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]);

  }

}


static void get_options(void) {
  int CC_id;
  int tddflag;
  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 ;

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  config_process_cmdline( cmdline_params,sizeof(cmdline_params)/sizeof(paramdef_t),NULL);
  printf("get_options 0, UE_flag: %d", UE_flag);

  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 (UE_flag > 0) {
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     uint8_t n_rb_dl;

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     paramdef_t cmdline_uemodeparams[] =CMDLINE_UEMODEPARAMS_DESC;
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     paramdef_t cmdline_ueparams[] =CMDLINE_UEPARAMS_DESC; 
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     set_default_frame_parms(frame_parms);
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     emul_iface=malloc(100);

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     config_process_cmdline( cmdline_uemodeparams,sizeof(cmdline_uemodeparams)/sizeof(paramdef_t),NULL);
     config_process_cmdline( cmdline_ueparams,sizeof(cmdline_ueparams)/sizeof(paramdef_t),NULL);
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      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;
      printf("Panos: get_options 9 \n");
      if ( (cmdline_uemodeparams[CMDLINE_CALIBUERXBYP_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue_byp;
      printf("Panos: get_options 10 \n");
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      if ( (cmdline_uemodeparams[CMDLINE_DEBUGUEPRACH_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = debug_prach;
      if ( (cmdline_uemodeparams[CMDLINE_NOL2CONNECT_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0)  mode = no_L2_connect;
      if ( (cmdline_uemodeparams[CMDLINE_CALIBPRACHTX_IDX].paramflags &  PARAMFLAG_PARAMSET) != 0) mode = calib_prach_tx; 
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      printf("Panos: get_options 11 \n");
      if (dumpframe  > 0)  mode = rx_dump_frame;
      if ( downlink_frequency[0][0] > 0) {
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        printf("Downlink frequency set to %u\n", downlink_frequency[0][0]);
        for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
          frame_parms[CC_id]->dl_CarrierFreq = downlink_frequency[0][0];
        }
        UE_scan=0;
      } 
      
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      if (tddflag > 0) {
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	for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) 
	  frame_parms[CC_id]->frame_type = TDD;
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      }
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      if (n_rb_dl !=0) {
        printf("NB_RB set to %d\n",n_rb_dl);
        if ( n_rb_dl < 6 ) {
          n_rb_dl = 6;
          printf ( "%i: Invalid number of ressource blocks, adjusted to 6\n",n_rb_dl);
        }
        if ( n_rb_dl > 100 ) {
          n_rb_dl = 100;
          printf ( "%i: Invalid number of ressource blocks, adjusted to 100\n",n_rb_dl);
        }
        if ( n_rb_dl > 50 && n_rb_dl < 100 ) {
          n_rb_dl = 50;
          printf ( "%i: Invalid number of ressource blocks, adjusted to 50\n",n_rb_dl);
        }
        if ( n_rb_dl > 25 && n_rb_dl < 50 ) {
          n_rb_dl = 25;
          printf ( "%i: Invalid number of ressource blocks, adjusted to 25\n",n_rb_dl);
        }
        UE_scan = 0;
        for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
          frame_parms[CC_id]->N_RB_DL=n_rb_dl;
          frame_parms[CC_id]->N_RB_UL=n_rb_dl;
        }
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      }
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      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];
      }
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      printf("Emulation interface : %s (%p,%p)\n",emul_iface,emul_iface,&emul_iface);
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  } /* UE_flag > 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)) ) {
    if (UE_flag == 0) {
      memset((void*)&RC,0,sizeof(RC));
      /* Read RC configuration file */
      RCConfig();
      NB_eNB_INST = RC.nb_inst;
      NB_RU	  = RC.nb_RU;
      printf("Configuration: nb_rrc_inst %d, nb_L1_inst %d, nb_ru %d\n",NB_eNB_INST,RC.nb_L1_inst,NB_RU);
    }
  } else if (UE_flag == 1 && (CONFIG_GETCONFFILE != NULL)) {
    // Here the configuration file is the XER encoded UE capabilities
    // Read it in and store in asn1c data structures
    strcpy(uecap_xer,CONFIG_GETCONFFILE);
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    uecap_xer_in=0;
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    printf("Panos: get_options 7 \n");
  } /* UE with config file  */
}


#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 init_openair0(void);

void init_openair0() {

  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,
	   ((UE_flag==0) ? RC.eNB[0][0]->frame_parms.nb_antennas_tx : PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_tx),
	   ((UE_flag==0) ? RC.eNB[0][0]->frame_parms.nb_antennas_rx : 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,((UE_flag==0) ? RC.eNB[0][0]->frame_parms.nb_antennas_tx : PHY_vars_UE_g[0][0]->frame_parms.nb_antennas_tx));
    openair0_cfg[card].rx_num_channels=min(2,((UE_flag==0) ? RC.eNB[0][0]->frame_parms.nb_antennas_rx : 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] = (UE_flag==0) ? downlink_frequency[0][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] = (UE_flag==0) ? downlink_frequency[0][i] + uplink_frequency_offset[0][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];
      if (UE_flag == 0) {
	openair0_cfg[card].rx_gain[i] = RC.eNB[0][0]->rx_total_gain_dB;
      }
      else {
	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]);
    }
  }
}


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);
  }

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

void wait_eNBs(void) {

  int i,j;
  int waiting=1;


  while (waiting==1) {
    printf("Waiting for eNB L1 instances to all get configured ... sleeping 500ms (nb_L1_inst %d)\n",RC.nb_L1_inst);
    usleep(5000000);
    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++) {
	if (RC.eNB[i][j]->configured==0) {
	  waiting=1;
	  break;
        }
      }
    }
  }
  printf("eNB L1 are configured\n");
}

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 main( int argc, char **argv )
{
  int i;
#if defined (XFORMS)
  void *status;
#endif

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

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

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#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;

  //Panos: RF-sepcific part should get dropped (next 3 lines)?
  //memset(&openair0_cfg[0],0,sizeof(openair0_config_t)*MAX_CARDS);

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

  //set_latency_target();

  // set default parameters
  //if (UE_flag == 1) set_default_frame_parms(frame_parms);

  logInit();

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

  get_options ();
  if (CONFIG_ISFLAGSET(CONFIG_ABORT)) {
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    if (UE_flag == 0) {
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      fprintf(stderr,"Getting configuration failed\n");
      exit(-1);
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    }
    else { 
      printf("Setting nfapi mode to UE_STUB_OFFNET\n");
      nfapi_mode = 4;
    }
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  }
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#if T_TRACER
  T_init(T_port, 1-T_nowait, T_dont_fork);
#endif



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

  if (UE_flag==1) {
    printf("configuring for UE\n");

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    set_comp_log(HW,      LOG_INFO,  LOG_HIGH, 1);
    set_comp_log(PHY,     LOG_INFO,   LOG_HIGH, 1);
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    set_comp_log(MAC,     LOG_INFO,   LOG_HIGH, 1);
    set_comp_log(RLC,     LOG_INFO,   LOG_HIGH | FLAG_THREAD, 1);
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    set_comp_log(PDCP,    LOG_DEBUG,   LOG_HIGH, 1);
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    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

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

  }

  if (ouput_vcd) {
    if (UE_flag==1)
      VCD_SIGNAL_DUMPER_INIT("/tmp/openair_dump_UE.vcd");
    else
      VCD_SIGNAL_DUMPER_INIT("/tmp/openair_dump_eNB.vcd");
  }

  // Panos: Not required for phy_stub_UE mode
  /*if (opp_enabled ==1) {
    reset_opp_meas();
  }
  cpuf=get_cpu_freq_GHz();*/

#if defined(ENABLE_ITTI)

  if (UE_flag == 1) {
    log_set_instance_type (LOG_INSTANCE_UE);
  } else {
    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 (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

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//TTN for D2D
Tien-Thinh Nguyen's avatar
Tien-Thinh Nguyen committed
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#ifdef Rel14
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  printf ("RRC control socket\n");
  rrc_control_socket_init();
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  printf ("PDCP PC5S socket\n");
  pdcp_pc5_socket_init();
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#endif


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#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
  // Panos: Probably don't need next lines for the stub.

  /*for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {

    if (UE_flag==1) {
      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");


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  //NB_UE_INST=2;
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  NB_INST=1;
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  if (UE_flag==1) {
	  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++) {
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			  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);
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			  UE[CC_id] = PHY_vars_UE_g[i][CC_id];
			  printf("PHY_vars_UE_g[inst][%d] = %p\n",CC_id,UE[CC_id]);
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			  if (phy_test==1)
				  UE[CC_id]->mac_enabled = 0;
			  else
				  UE[CC_id]->mac_enabled = 1;
		  }
	  }
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  }

  // Panos: Probably don't need these lines for phy_stub
  /*printf("Runtime table\n");
  fill_modeled_runtime_table(runtime_phy_rx,runtime_phy_tx);
  cpuf=get_cpu_freq_GHz();*/



#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)

  printf("ITTI enabled\n");

  printf("UE_flag:%d\n", UE_flag);
  printf("RC.nb_inst:%d\n", RC.nb_inst);
  /*if ((UE_flag == 1)||
      (RC.nb_inst > 0))  {*/

  if (UE_flag == 1) {
    // don't create if node doesn't connect to RRC/S1/GTP
1195 1196
    //if (create_tasks(UE_flag ? 0 : 1, UE_flag ? 1 : 0) < 0) {
	  if (create_tasks_ue(1) < 0) {
1197 1198 1199
      printf("cannot create ITTI tasks\n");
      exit(-1); // need a softer mode
    }
1200 1201 1202
    if(nfapi_mode==3){ //Panos: Here we should add another nfapi_mode for the case of Supervised LTE-D2D
        UE_config_stub_pnf();
    }
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 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 1280 1281 1282 1283 1284 1285
    printf("ITTI tasks created\n");
  }
  else {
    printf("No ITTI, Initializing L1\n");
    RCconfig_L1();
  }
#endif

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

  mlockall(MCL_CURRENT | MCL_FUTURE);

  // Panos: Why we have these initializations twice if in nfapi_mode?
  pthread_cond_init(&sync_cond,NULL);
  pthread_mutex_init(&sync_mutex, NULL);

#ifdef XFORMS
  int UE_id;

  printf("XFORMS\n");

  if (do_forms==1) {
    fl_initialize (&argc, argv, NULL, 0, 0);

    if (UE_flag==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
    } else {
      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

  rt_sleep_ns(10*100000000ULL);

1286 1287
  // Panos: I have commented these lines because cond_init and mutex_init take place above in any case.
  /*if (nfapi_mode)
1288 1289 1290 1291
  {
    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);
1292
  }*/
1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309

  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;
1310 1311 1312
    case 4:
      nfapi_mode_str = "UE_STUB_OFFNET";
      break;
1313 1314 1315 1316 1317 1318
    default:
      nfapi_mode_str = "<UNKNOWN NFAPI MODE>";
      break;
  }
  printf("NFAPI MODE:%s\n", nfapi_mode_str);

1319 1320

  if (nfapi_mode<3) // VNF
1321 1322
    wait_nfapi_init("main?");

1323
  printf("START MAIN THREADS, nfapi_mode:%d \n", nfapi_mode);
1324 1325 1326 1327 1328 1329

  // start the main threads
  if (UE_flag == 1) {
    int eMBMS_active = 0;
    //init_UE(1,eMBMS_active,uecap_xer_in);
    number_of_cards = 1;
1330 1331

    config_sync_var=0;
1332 1333 1334 1335
    if (nfapi_mode==3) // UE-STUB-PNF
    	{
    	wait_nfapi_init("main?");
    	}
1336 1337
    // Panos: Call init_UE_stub instead of init_UE as we are always on nfapi_mode=3
    //phy_stub_ticking = (SF_ticking*)malloc(sizeof(SF_ticking));
1338 1339


1340 1341
    // Panos: CHANGE we call init_timer_thread() from inside init_UE_stub() now
    //init_timer_thread();
1342 1343 1344 1345

    // Panos: Temporarily we will be using single set of threads for multiple UEs.
    //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);
1346

1347

1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414
    /*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;
    }*/
  }
  // Panos: We should never enter this else case for nfapi_mode=3.
  /*else {
    number_of_cards = 1;
    printf("RC.nb_L1_inst:%d\n", RC.nb_L1_inst);
    if (RC.nb_L1_inst > 0) {
      printf("Initializing eNB threads single_thread_flag:%d wait_for_sync:%d\n", single_thread_flag,wait_for_sync);
      init_eNB(single_thread_flag,wait_for_sync);
      //      for (inst=0;inst<RC.nb_L1_inst;inst++)
      //	for (CC_id=0;CC_id<RC.nb_L1_CC[inst];CC_id++) phy_init_lte_eNB(RC.eNB[inst][CC_id],0,0);
    }

    printf("wait_eNBs()\n");
    wait_eNBs();

    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 intiailize the rest of the eNBs ((dependence on final RU parameters after configuration)
    printf("ALL RUs ready - init eNBs\n");

    if (nfapi_mode != 1 && nfapi_mode != 2)
    {
      printf("Not NFAPI mode - call init_eNB_afterRU()\n");
      init_eNB_afterRU();
    }
    else
    {
      printf("NFAPI mode - DO NOT call init_eNB_afterRU()\n");
    }

    printf("ALL RUs ready - ALL eNBs ready\n");
  }*/
  if (phy_test==0) {
      if (UE_flag==1) {
        printf("Filling UE band info\n");
        fill_ue_band_info();
        dl_phy_sync_success (0, 0, 0, 1);
      }
    }


  // connect the TX/RX buffers
  if (UE_flag==1) {

1415
    /*for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
1416 1417 1418 1419 1420 1421 1422


#ifdef OAI_USRP
      UE[CC_id]->hw_timing_advance = timing_advance;
#else
      UE[CC_id]->hw_timing_advance = 160;
#endif
1423 1424 1425 1426 1427
    }*/




1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452
    // Panos: No need to call setup_ue_buffers() for nfapi_mode=3
    /*if (setup_ue_buffers(UE,&openair0_cfg[0])!=0) {
      printf("Error setting up eNB buffer\n");
      exit(-1);
    }*/


    // Panos: Similar for nfapi_mode=3
    /*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;
  } else {

    printf("eNB mode\n");

  }

  printf("Sending sync to all threads\n");

1453 1454 1455 1456
  /*if(nfapi_mode==3){
	  usleep(1000);
  }*/

1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550
  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);

    if (UE_flag==1) {
      fl_hide_form(form_ue[0]->lte_phy_scope_ue);
      fl_free_form(form_ue[0]->lte_phy_scope_ue);
    } else {
      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
  if (UE_flag == 1) {
  } /*else {
    stop_eNB(1);
  }*/


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

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


  // Panos: No RF in phy_stub mode: Exclude the following lines
  // *** Handle per CC_id openair0
  /*if (UE_flag==1) {
    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);
  }
  else {
    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();

  return 0;
}