lte-softmodem.c 80.6 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2011 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
  Openair Tech : openair_tech@eurecom.fr
  Forums       : http://forums.eurecom.fsr/openairinterface
  Address      : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France

*******************************************************************************/

/*! \file lte-softmodem.c
knopp's avatar
 
knopp committed
31 32 33 34 35 36 37 38 39
 * \brief main program to control HW and scheduling
 * \author R. Knopp, F. Kaltenberger
 * \date 2012
 * \version 0.1
 * \company Eurecom
 * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr
 * \note
 * \warning
 */
knopp's avatar
 
knopp committed
40
#define _GNU_SOURCE
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>

#include "rt_wrapper.h"
56 57
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all

knopp's avatar
 
knopp committed
58
#ifdef USRP
knopp's avatar
 
knopp committed
59
static int hw_subframe;
knopp's avatar
 
knopp committed
60
#endif
knopp's avatar
 
knopp committed
61

62
#include "assertions.h"
63 64 65 66 67 68

#ifdef EMOS
#include <gps.h>
#endif

#include "PHY/types.h"
69

70
#include "PHY/defs.h"
71 72 73
#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

knopp's avatar
 
knopp committed
74
#ifndef USRP
75
#include "openair0_lib.h"
knopp's avatar
 
knopp committed
76 77 78 79
#else
#include "../../ARCH/COMMON/common_lib.h"
#endif

80
#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
81 82 83

#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"
84
//#include "SCHED/defs.h"
85 86 87 88 89 90 91 92 93 94
#include "SCHED/vars.h"
#include "LAYER2/MAC/vars.h"

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

#ifdef EMOS
#include "SCHED/phy_procedures_emos.h"
#endif

#ifdef OPENAIR2
95
#include "otg_tx.h"
96 97
#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/vars.h"
98
#include "LAYER2/MAC/proto.h"
99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
#ifndef CELLULAR
#include "RRC/LITE/vars.h"
#endif
#include "PHY_INTERFACE/vars.h"
#endif

#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.h"
#include "UTIL/OTG/otg_vars.h"
#include "UTIL/MATH/oml.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
114
#include "enb_config.h"
115

116 117
#if defined(ENABLE_ITTI)
# include "intertask_interface_init.h"
118
# include "create_tasks.h"
119 120 121
# if defined(ENABLE_USE_MME)
#   include "s1ap_eNB.h"
# endif
122 123
#endif

124 125 126
#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#include "stats.h"
127 128 129 130 131
#endif

#define FRAME_PERIOD    100000000ULL
#define DAQ_PERIOD      66667ULL

knopp's avatar
 
knopp committed
132 133
#define DEBUG_THREADS 1

134 135 136 137 138 139 140
struct timing_info_t {
  //unsigned int frame, hw_slot, last_slot, next_slot;
  RTIME time_min, time_max, time_avg, time_last, time_now;
  //unsigned int mbox0, mbox1, mbox2, mbox_target;
  unsigned int n_samples;
} timing_info;

gauthier's avatar
gauthier committed
141 142
extern int16_t* sync_corr_ue0;
extern int16_t prach_ifft[4][1024*2];
143 144 145

int init_dlsch_threads(void);
void cleanup_dlsch_threads(void);
gauthier's avatar
gauthier committed
146
int32_t init_rx_pdsch_thread(void);
147
void cleanup_rx_pdsch_thread(void);
knopp's avatar
 
knopp committed
148 149


knopp's avatar
 
knopp committed
150 151
int32_t *rxdata;
int32_t *txdata;
152 153 154 155
void setup_ue_buffers(PHY_VARS_UE *phy_vars_ue, LTE_DL_FRAME_PARMS *frame_parms, int carrier);
void setup_eNB_buffers(PHY_VARS_eNB *phy_vars_eNB, LTE_DL_FRAME_PARMS *frame_parms, int carrier);

#ifdef XFORMS
156 157 158 159
// 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[NUMBER_OF_UE_MAX];
160
FD_stats_form                  *form_stats=NULL;
161
char title[255];
162
unsigned char                   scope_enb_num_ue = 1;
163 164 165
#endif //XFORMS

#ifdef RTAI
166
static SEM                     *mutex;
167 168
//static CND *cond;

169 170
static int                      thread0;
static int                      thread1;
knopp's avatar
 
knopp committed
171 172 173
#ifdef USRP
static SEM *sync_sem; // to sync rx & tx streaming
#endif
174 175
//static int sync_thread;
#else
176 177 178 179
pthread_t                       thread0;
pthread_t                       thread1;
pthread_attr_t                  attr_dlsch_threads;
struct sched_param              sched_param_dlsch;
knopp's avatar
 
knopp committed
180 181 182 183
#ifdef USRP
pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
#endif
184 185
#endif

knopp's avatar
 
knopp committed
186 187 188 189 190
pthread_attr_t                  attr_eNB_proc_tx[10];
pthread_attr_t                  attr_eNB_proc_rx[10];
struct sched_param              sched_param_eNB_proc_tx[10];
struct sched_param              sched_param_eNB_proc_rx[10];

191 192 193 194 195 196
#ifdef XFORMS
static pthread_t                thread2; //xforms
#endif
#ifdef EMOS
static pthread_t                thread3; //emos
#endif
197

knopp's avatar
 
knopp committed
198 199 200
openair0_device openair0;
openair0_timestamp timestamp;

201
/*
knopp's avatar
 
knopp committed
202 203 204
  static int instance_cnt=-1; //0 means worker is busy, -1 means its free
  int instance_cnt_ptr_kern,*instance_cnt_ptr_user;
  int pci_interface_ptr_kern;
205 206 207 208
*/
//extern unsigned int bigphys_top;
//extern unsigned int mem_base;

209
int                             card = 0;
knopp's avatar
 
knopp committed
210

211

212
#if defined(ENABLE_ITTI)
213 214
static volatile int             start_eNB = 0;
static volatile int             start_UE = 0;
215
#endif
216 217 218 219 220 221
volatile int                    oai_exit = 0;

//static int                      time_offset[4] = {-138,-138,-138,-138};
//static int                      time_offset[4] = {-145,-145,-145,-145};
static int                      time_offset[4] = {0,0,0,0};

knopp's avatar
 
knopp committed
222

223
static char                     UE_flag=0;
gauthier's avatar
gauthier committed
224
static uint8_t                       eNB_id=0,UE_id=0;
225

gauthier's avatar
gauthier committed
226
uint32_t                             carrier_freq[4] =           {1907600000,1907600000,1907600000,1907600000}; /* For UE! */
227
static uint32_t          downlink_frequency[4] =     {1907600000,1907600000,1907600000,1907600000};
gauthier's avatar
gauthier committed
228
static int32_t                      uplink_frequency_offset[4]= {-120000000,-120000000,-120000000,-120000000};
229 230
static char                    *conf_config_file_name = NULL;

231
#if defined(ENABLE_ITTI)
232
static char                    *itti_dump_file = NULL;
knopp's avatar
 
knopp committed
233 234
#endif

gauthier's avatar
gauthier committed
235 236 237 238
#ifndef USRP
double tx_gain = 20;
double rx_gain = 30;
#else
knopp's avatar
 
knopp committed
239 240
double tx_gain = 120;
double rx_gain = 30;
gauthier's avatar
gauthier committed
241
#endif
knopp's avatar
 
knopp committed
242

knopp's avatar
 
knopp committed
243 244
double sample_rate=30.72e6;
double bw = 14e6;
245

knopp's avatar
 
knopp committed
246
#ifndef USRP
247 248 249 250
static unsigned int             rxg_max[4] =    {133,133,133,133};
static unsigned int             rxg_med[4] =    {127,127,127,127};
static unsigned int             rxg_byp[4] =    {120,120,120,120};
static int                      tx_max_power =  0;
251

knopp's avatar
 
knopp committed
252

knopp's avatar
 
knopp committed
253
#else
knopp's avatar
 
knopp committed
254
static unsigned int             rxg_max[4] =    {133,133,133,133};
knopp's avatar
 
knopp committed
255 256
//static unsigned int            rxg_med[4] =    {127,127,127,127};
//static unsigned int            rxg_byp[4] =    {120,120,120,120};
knopp's avatar
 
knopp committed
257
static int                      tx_max_power =  0;
knopp's avatar
 
knopp committed
258 259 260
char ref[128] = "internal";
char channels[128] = "0";

knopp's avatar
 
knopp committed
261 262 263
unsigned int samples_per_frame = 307200;
unsigned int samples_per_packets = 2048; // samples got every recv or send
unsigned int tx_forward_nsamps;
knopp's avatar
 
knopp committed
264 265 266 267 268 269 270 271 272

int sf_bounds_5[10] = {8, 15, 23, 30, 38, 45, 53, 60, 68, 75};
int sf_bounds_10[10] = {8, 15, 23, 30, 38, 45, 53, 60, 68, 75};
int sf_bounds_20[10] = {15, 30, 45, 60, 75, 90, 105, 120, 135, 150};
int *sf_bounds;
int max_cnt;
int tx_delay;

#endif
273
/*
knopp's avatar
 
knopp committed
274 275 276
  uint32_t rf_mode_max[4]     = {55759,55759,55759,55759};
  uint32_t rf_mode_med[4]     = {39375,39375,39375,39375};
  uint32_t rf_mode_byp[4]     = {22991,22991,22991,22991};
277
*/
knopp's avatar
 
knopp committed
278 279
//static uint32_t                      rf_mode[4] =        {MY_RF_MODE,0,0,0};
//static uint32_t                      rf_local[4] =       {8255000,8255000,8255000,8255000}; // UE zepto
knopp's avatar
 
knopp committed
280 281
//{8254617, 8254617, 8254617, 8254617}; //eNB khalifa
//{8255067,8254810,8257340,8257340}; // eNB PETRONAS
282

knopp's avatar
 
knopp committed
283 284 285 286 287
//static uint32_t                      rf_vcocal[4] =      {910,910,910,910};
//static uint32_t                      rf_vcocal_850[4] =  {2015, 2015, 2015, 2015};
//static uint32_t                      rf_rxdc[4] =        {32896,32896,32896,32896};
//static uint32_t                      rxgain[4] =         {20,20,20,20};
//static uint32_t                      txgain[4] =         {20,20,20,20};
288 289 290

static runmode_t                mode;
static int                      rx_input_level_dBm;
291
static int                      online_log_messages=0;
292
#ifdef XFORMS
293
extern int                      otg_enabled;
294
static char                     do_forms=0;
295
#else
296
int                             otg_enabled;
297
#endif
knopp's avatar
 
knopp committed
298
//int                             number_of_cards =   1;
knopp's avatar
 
knopp committed
299
#ifndef USRP
300 301
static int                      mbox_bounds[20] =   {8,16,24,30,38,46,54,60,68,76,84,90,98,106,114,120,128,136,144, 0}; ///boundaries of slots in terms ob mbox counter rounded up to even numbers
//static int                      mbox_bounds[20] =   {6,14,22,28,36,44,52,58,66,74,82,88,96,104,112,118,126,134,142, 148}; ///boundaries of slots in terms ob mbox counter rounded up to even numbers
knopp's avatar
 
knopp committed
302
#endif
303

304
static LTE_DL_FRAME_PARMS      *frame_parms;
305

knopp's avatar
 
knopp committed
306
int multi_thread=1;
knopp's avatar
 
knopp committed
307
int N_RB_DL=25;
knopp's avatar
 
knopp committed
308

309
unsigned int build_rflocal(int txi, int txq, int rxi, int rxq)
310
{
knopp's avatar
 
knopp committed
311
  return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
312 313 314
}
unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe)
{
knopp's avatar
 
knopp committed
315
  return (dcoff_i_rxfe + (dcoff_q_rxfe<<8));
316 317
}

318
#if !defined(ENABLE_ITTI)
319 320 321 322 323 324 325 326 327 328 329 330 331 332 333
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 {
334
    oai_exit = 1;
335 336
  }
}
337
#endif
338 339 340

void exit_fun(const char* s)
{
341
  if (s != NULL) {
gauthier's avatar
gauthier committed
342
    printf("%s %s() Exiting: %s\n",__FILE__, __FUNCTION__, s);
343 344 345 346 347
  }

  oai_exit = 1;

#if defined(ENABLE_ITTI)
348
  itti_terminate_tasks (TASK_UNKNOWN);
349
#endif
350 351 352 353 354 355

  //rt_sleep_ns(FRAME_PERIOD);

  //exit (-1);
}

knopp's avatar
 
knopp committed
356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385
static int latency_target_fd = -1;
static int32_t latency_target_value = 0;
/* Latency trick - taken from cyclictest.c 
* if the file /dev/cpu_dma_latency exists,
* open it and write a zero into it. This will tell
* the power management system not to transition to
* a high cstate (in fact, the system acts like idle=poll)
* When the fd to /dev/cpu_dma_latency is closed, the behavior
* goes back to the system default.
*
* Documentation/power/pm_qos_interface.txt
*/
static void set_latency_target(void)
{
  struct stat s;
  int ret;
  if (stat("/dev/cpu_dma_latency", &s) == 0) {
    latency_target_fd = open("/dev/cpu_dma_latency", O_RDWR);
    if (latency_target_fd == -1)
      return;
    ret = write(latency_target_fd, &latency_target_value, 4);
    if (ret == 0) {
      printf("# error setting cpu_dma_latency to %d!: %s\n", latency_target_value, strerror(errno));
      close(latency_target_fd);
      return;
    }
    printf("# /dev/cpu_dma_latency set to %dus\n", latency_target_value);
  }
}

386
#ifdef XFORMS
387
static void *scope_thread(void *arg) {
knopp's avatar
 
knopp committed
388
  char stats_buffer[16384];
389
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
390 391
  FILE *UE_stats, *eNB_stats;
  int len = 0;
392
# endif
knopp's avatar
 
knopp committed
393
  struct sched_param sched_param;
394

knopp's avatar
 
knopp committed
395 396
  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1; 
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
397

knopp's avatar
 
knopp committed
398
  printf("Scope thread has priority %d\n",sched_param.sched_priority);
399
    
knopp's avatar
 
knopp committed
400 401 402 403 404 405
  /*
    if (UE_flag==1) 
    UE_stats  = fopen("UE_stats.txt", "w");
    else 
    eNB_stats = fopen("eNB_stats.txt", "w");
  */
406
    
knopp's avatar
 
knopp committed
407 408
  while (!oai_exit) {
    if (UE_flag==1) {
409
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
410
      len =
411
# endif
knopp's avatar
 
knopp committed
412 413
	dump_ue_stats (PHY_vars_UE_g[0], stats_buffer, 0, mode,rx_input_level_dBm);
      fl_set_object_label(form_stats->stats_text, stats_buffer);
414
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
415 416
      rewind (UE_stats);
      fwrite (stats_buffer, 1, len, UE_stats);
417
# endif
knopp's avatar
 
knopp committed
418 419 420 421
      phy_scope_UE(form_ue[UE_id], 
		   PHY_vars_UE_g[UE_id],
		   eNB_id,
		   UE_id,7);
422
            
knopp's avatar
 
knopp committed
423
    } else {
424
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
425
      len =
426
# endif
knopp's avatar
 
knopp committed
427 428
	dump_eNB_stats (PHY_vars_eNB_g[0], stats_buffer, 0);
      fl_set_object_label(form_stats->stats_text, stats_buffer);
429
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
430 431
      rewind (eNB_stats);
      fwrite (stats_buffer, 1, len, eNB_stats);
432
# endif
knopp's avatar
 
knopp committed
433 434 435 436 437
      for(UE_id=0;UE_id<scope_enb_num_ue;UE_id++) {
	phy_scope_eNB(form_enb[UE_id], 
		      PHY_vars_eNB_g[eNB_id],
		      UE_id);
      }
438 439
              
    }
knopp's avatar
 
knopp committed
440 441 442
    //printf("doing forms\n");
    usleep(100000); // 100 ms
  }
443
    
444
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
 
knopp committed
445 446
  fclose (UE_stats);
  fclose (eNB_stats);
447
# endif
448
    
knopp's avatar
 
knopp committed
449
  pthread_exit((void*)arg);
450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474
}
#endif

#ifdef EMOS
#define NO_ESTIMATES_DISK 100 //No. of estimates that are aquired before dumped to disk

void *emos_thread (void *arg)
{
  char c;
  char *fifo2file_buffer, *fifo2file_ptr;

  int fifo, counter=0, bytes;

  FILE  *dumpfile_id;
  char  dumpfile_name[1024];
  time_t starttime_tmp;
  struct tm starttime;
  
  int channel_buffer_size;
  
  time_t timer;
  struct tm *now;

  struct gps_data_t *gps_data = NULL;
  struct gps_fix_t dummy_gps_data;
475 476 477 478 479 480 481

  struct sched_param sched_param;
  
  sched_param.sched_priority = sched_get_priority_max(SCHED_FIFO)-1; 
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
  
  printf("EMOS thread has priority %d\n",sched_param.sched_priority);
482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503
 
  timer = time(NULL);
  now = localtime(&timer);

  memset(&dummy_gps_data,1,sizeof(struct gps_fix_t));
  
  gps_data = gps_open("127.0.0.1","2947");
  if (gps_data == NULL) 
    {
      printf("[EMOS] Could not open GPS\n");
      //exit(-1);
    }
#if GPSD_API_MAJOR_VERSION>=4
  else if (gps_stream(gps_data, WATCH_ENABLE,NULL) != 0)
#else
  else if (gps_query(gps_data, "w+x") != 0)
#endif
    {
      //sprintf(tmptxt,"Error sending command to GPS, gps_data = %x", gps_data);
      printf("[EMOS] Error sending command to GPS\n");
      //exit(-1);
    }
504 505
  else 
    printf("[EMOS] Opened GPS, gps_data=%p\n");
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
  
  if (UE_flag==0)
    channel_buffer_size = sizeof(fifo_dump_emos_eNB);
  else
    channel_buffer_size = sizeof(fifo_dump_emos_UE);

  // allocate memory for NO_FRAMES_DISK channes estimations
  fifo2file_buffer = malloc(NO_ESTIMATES_DISK*channel_buffer_size);
  fifo2file_ptr = fifo2file_buffer;

  if (fifo2file_buffer == NULL)
    {
      printf("[EMOS] Cound not allocate memory for fifo2file_buffer\n");
      exit(EXIT_FAILURE);
    }

  if ((fifo = open(CHANSOUNDER_FIFO_DEV, O_RDONLY)) < 0)
    {
      fprintf(stderr, "[EMOS] Error opening the fifo\n");
      exit(EXIT_FAILURE);
    }


  time(&starttime_tmp);
  localtime_r(&starttime_tmp,&starttime);
  snprintf(dumpfile_name,1024,"/tmp/%s_data_%d%02d%02d_%02d%02d%02d.EMOS",
	   (UE_flag==0) ? "eNB" : "UE",
	   1900+starttime.tm_year, starttime.tm_mon+1, starttime.tm_mday, starttime.tm_hour, starttime.tm_min, starttime.tm_sec);

  dumpfile_id = fopen(dumpfile_name,"w");
  if (dumpfile_id == NULL)
    {
      fprintf(stderr, "[EMOS] Error opening dumpfile %s\n",dumpfile_name);
      exit(EXIT_FAILURE);
    }


  printf("[EMOS] starting dump, channel_buffer_size=%d ...\n",channel_buffer_size);
  while (!oai_exit)
    {
      bytes = rtf_read_timed(fifo, fifo2file_ptr, channel_buffer_size,100);
      if (bytes==0)
	continue;

      /*
knopp's avatar
 
knopp committed
551
	if (UE_flag==0)
552
	printf("eNB: count %d, frame %d, read: %d bytes from the fifo\n",counter, ((fifo_dump_emos_eNB*)fifo2file_ptr)->frame_tx,bytes);
knopp's avatar
 
knopp committed
553
	else
554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614
	printf("UE: count %d, frame %d, read: %d bytes from the fifo\n",counter, ((fifo_dump_emos_UE*)fifo2file_ptr)->frame_rx,bytes);
      */

      fifo2file_ptr += channel_buffer_size;
      counter ++;

      if (counter == NO_ESTIMATES_DISK)
        {
          //reset stuff
          fifo2file_ptr = fifo2file_buffer;
          counter = 0;

          //flush buffer to disk
	  if (UE_flag==0)
	    printf("[EMOS] eNB: count %d, frame %d, flushing buffer to disk\n",
		   counter, ((fifo_dump_emos_eNB*)fifo2file_ptr)->frame_tx);
	  else
	    printf("[EMOS] UE: count %d, frame %d, flushing buffer to disk\n",
		   counter, ((fifo_dump_emos_UE*)fifo2file_ptr)->frame_rx);


          if (fwrite(fifo2file_buffer, sizeof(char), NO_ESTIMATES_DISK*channel_buffer_size, dumpfile_id) != NO_ESTIMATES_DISK*channel_buffer_size)
            {
              fprintf(stderr, "[EMOS] Error writing to dumpfile\n");
              exit(EXIT_FAILURE);
            }
	  if (gps_data)
	    {
	      if (gps_poll(gps_data) != 0) {
		printf("[EMOS] problem polling data from gps\n");
	      }
	      else {
		printf("[EMOS] lat %g, lon %g\n",gps_data->fix.latitude,gps_data->fix.longitude);
	      }
	      if (fwrite(&(gps_data->fix), sizeof(char), sizeof(struct gps_fix_t), dumpfile_id) != sizeof(struct gps_fix_t))
		{
		  printf("[EMOS] Error writing to dumpfile, stopping recording\n");
		  exit(EXIT_FAILURE);
		}
	    }
	  else
	    {
	      printf("[EMOS] WARNING: No GPS data available, storing dummy packet\n");
	      if (fwrite(&(dummy_gps_data), sizeof(char), sizeof(struct gps_fix_t), dumpfile_id) != sizeof(struct gps_fix_t))
		{
		  printf("[EMOS] Error writing to dumpfile, stopping recording\n");
		  exit(EXIT_FAILURE);
		}
	    } 
        }
    }
  
  free(fifo2file_buffer);
  fclose(dumpfile_id);
  close(fifo);
  
  pthread_exit((void*) arg);

}
#endif

615
#if defined(ENABLE_ITTI)
616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633
static void wait_system_ready (char *message, volatile int *start_flag)
{
  /* Wait for eNB application initialization to be complete (eNB registration to MME) */
  {
    static char *indicator[] = {".    ", "..   ", "...  ", ".... ", ".....",
                                " ....", "  ...", "   ..", "    .", "     "};
    int i = 0;

    while ((!oai_exit) && (*start_flag == 0)) {
      LOG_N(EMU, message, indicator[i]);
      i = (i + 1) % (sizeof(indicator) / sizeof(indicator[0]));
      usleep(200000);
    }
    LOG_D(EMU,"\n");
  }
}
#endif

knopp's avatar
 
knopp committed
634
#if defined(ENABLE_ITTI)
635
void *l2l1_task(void *arg)
636
{
knopp's avatar
 
knopp committed
637 638 639 640 641
  MessageDef *message_p = NULL;
  int         result;

  itti_set_task_real_time(TASK_L2L1);
  itti_mark_task_ready(TASK_L2L1);
642

knopp's avatar
 
knopp committed
643 644
  if (UE_flag == 0) {
    /* Wait for the initialize message */
645
    do {
knopp's avatar
 
knopp committed
646 647 648 649
      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);
      }
650 651 652
      itti_receive_msg (TASK_L2L1, &message_p);

      switch (ITTI_MSG_ID(message_p)) {
knopp's avatar
 
knopp committed
653 654 655 656 657 658 659 660 661 662 663 664 665 666
      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:
	oai_exit=1;
	itti_exit_task ();
	break;

      default:
	LOG_E(EMU, "Received unexpected message %s\n", ITTI_MSG_NAME(message_p));
	break;
667
      }
knopp's avatar
 
knopp committed
668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689
    } 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;
690

knopp's avatar
 
knopp committed
691 692 693 694 695 696 697 698 699 700 701 702
    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(1);
703

knopp's avatar
 
knopp committed
704
  return NULL;
705 706 707
}
#endif

knopp's avatar
 
knopp committed
708 709 710 711

void do_OFDM_mod(int subframe,PHY_VARS_eNB *phy_vars_eNB) {

  unsigned int aa,slot_offset, slot_offset_F;
knopp's avatar
 
knopp committed
712
#ifndef USRP
knopp's avatar
 
knopp committed
713
  int dummy_tx_b[7680*4] __attribute__((aligned(16)));
knopp's avatar
 
knopp committed
714
#endif
knopp's avatar
 
knopp committed
715
  int i, tx_offset;
knopp's avatar
 
knopp committed
716
  int slot_sizeF = (phy_vars_eNB->lte_frame_parms.ofdm_symbol_size)*
knopp's avatar
 
knopp committed
717
    ((phy_vars_eNB->lte_frame_parms.Ncp==1) ? 6 : 7);
knopp's avatar
 
knopp committed
718 719 720

  slot_offset_F = (subframe<<1)*slot_sizeF;
    
knopp's avatar
 
knopp committed
721 722
  slot_offset = subframe*phy_vars_eNB->lte_frame_parms.samples_per_tti;

knopp's avatar
 
knopp committed
723 724
  if ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_DL)||
      ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_S))) {
knopp's avatar
 
knopp committed
725
    //	  LOG_D(HW,"Frame %d: Generating slot %d\n",frame,next_slot);
knopp's avatar
 
knopp committed
726 727

#ifdef EXMIMO      
knopp's avatar
 
knopp committed
728 729 730 731 732 733 734 735 736 737
    for (aa=0; aa<phy_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
      if (phy_vars_eNB->lte_frame_parms.Ncp == EXTENDED){ 
	PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F],
		     dummy_tx_b,
		     phy_vars_eNB->lte_frame_parms.log2_symbol_size,
		     6,
		     phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
		     phy_vars_eNB->lte_frame_parms.twiddle_ifft,
		     phy_vars_eNB->lte_frame_parms.rev,
		     CYCLIC_PREFIX);
knopp's avatar
 
knopp committed
738 739 740 741 742 743 744 745
	PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
		     dummy_tx_b+(phy_vars_eNB->lte_frame_parms.samples_per_tti>>1),
		     phy_vars_eNB->lte_frame_parms.log2_symbol_size,
		     6,
		     phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
		     phy_vars_eNB->lte_frame_parms.twiddle_ifft,
		     phy_vars_eNB->lte_frame_parms.rev,
		     CYCLIC_PREFIX);
knopp's avatar
 
knopp committed
746 747 748 749 750 751
      }
      else {
	normal_prefix_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F],
			  dummy_tx_b,
			  7,
			  &(phy_vars_eNB->lte_frame_parms));
knopp's avatar
 
knopp committed
752 753 754 755
	normal_prefix_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
			  dummy_tx_b+(phy_vars_eNB->lte_frame_parms.samples_per_tti>>1),
			  7,
			  &(phy_vars_eNB->lte_frame_parms));
knopp's avatar
 
knopp committed
756
      }
knopp's avatar
 
knopp committed
757 758

      for (i=0; i<phy_vars_eNB->lte_frame_parms.samples_per_tti; i++) {
knopp's avatar
 
knopp committed
759 760 761 762 763 764 765 766 767 768 769
	tx_offset = (int)slot_offset+time_offset[aa]+i;
	if (tx_offset<0)
	  tx_offset += LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->lte_frame_parms.samples_per_tti;
	if (tx_offset>=(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->lte_frame_parms.samples_per_tti))
	  tx_offset -= LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->lte_frame_parms.samples_per_tti;
	((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[0]=
	  ((short*)dummy_tx_b)[2*i]<<4;
	((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[1]=
	  ((short*)dummy_tx_b)[2*i+1]<<4;
      }
    }
knopp's avatar
 
knopp committed
770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792
  
#else

    for (aa=0; aa<phy_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
      if (phy_vars_eNB->lte_frame_parms.Ncp == EXTENDED){ 
	PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F],
		     &PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdata[0][aa][slot_offset],
		     phy_vars_eNB->lte_frame_parms.log2_symbol_size,
		     6,
		     phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
		     phy_vars_eNB->lte_frame_parms.twiddle_ifft,
		     phy_vars_eNB->lte_frame_parms.rev,
		     CYCLIC_PREFIX);
	PHY_ofdm_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
		     &PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdata[0][aa][slot_offset+(phy_vars_eNB->lte_frame_parms.samples_per_tti>>1)],
		     phy_vars_eNB->lte_frame_parms.log2_symbol_size,
		     6,
		     phy_vars_eNB->lte_frame_parms.nb_prefix_samples,
		     phy_vars_eNB->lte_frame_parms.twiddle_ifft,
		     phy_vars_eNB->lte_frame_parms.rev,
		     CYCLIC_PREFIX);
      }
      else {
knopp's avatar
 
knopp committed
793

knopp's avatar
 
knopp committed
794
	normal_prefix_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F],
knopp's avatar
 
knopp committed
795
			  &PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdata[0][aa][slot_offset],
knopp's avatar
 
knopp committed
796 797 798 799 800 801 802 803 804 805
			  7,
			  &(phy_vars_eNB->lte_frame_parms));
	normal_prefix_mod(&phy_vars_eNB->lte_eNB_common_vars.txdataF[0][aa][slot_offset_F+slot_sizeF],
			  &PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdata[0][aa][slot_offset+(phy_vars_eNB->lte_frame_parms.samples_per_tti>>1)],
			  7,
			  &(phy_vars_eNB->lte_frame_parms));
      }

    }
#endif //EXMIMO
knopp's avatar
 
knopp committed
806 807 808 809 810 811
  }
}


int eNB_thread_tx_status[10];
static void * eNB_thread_tx(void *param) {
knopp's avatar
 
knopp committed
812 813 814

  //unsigned long cpuid;
  eNB_proc_t *proc = (eNB_proc_t*)param;
knopp's avatar
 
knopp committed
815 816
  int subframe_tx;
  //  RTIME time_in,time_out;
knopp's avatar
 
knopp committed
817 818
#ifdef RTAI
  RT_TASK *task;
819
  char task_name[8];
knopp's avatar
 
knopp committed
820
#endif
knopp's avatar
 
knopp committed
821 822

 
knopp's avatar
 
knopp committed
823

knopp's avatar
 
knopp committed
824 825 826 827 828
#if defined(ENABLE_ITTI)
  /* Wait for eNB application initialization to be complete (eNB registration to MME) */
  wait_system_ready ("Waiting for eNB application to be ready %s\r", &start_eNB);
#endif

knopp's avatar
 
knopp committed
829
#ifdef RTAI
830
  sprintf(task_name,"eNTX%d",proc->subframe);
knopp's avatar
 
knopp committed
831 832 833
  task = rt_task_init_schmod(nam2num(task_name), 0, 0, 0, SCHED_FIFO, 0xF);

  if (task==NULL) {
knopp's avatar
 
knopp committed
834
    LOG_E(PHY,"[SCHED][eNB] Problem starting eNB_proc_TX thread_index %d (%s)!!!!\n",proc->subframe,task_name);
knopp's avatar
 
knopp committed
835 836 837
    return 0;
  }
  else {
838
    LOG_I(PHY,"[SCHED][eNB] eNB TX thread %d started with id %p\n",
knopp's avatar
 
knopp committed
839
	  proc->subframe,
840
	  task);
knopp's avatar
 
knopp committed
841
  }
knopp's avatar
 
knopp committed
842
#else
knopp's avatar
 
knopp committed
843 844 845
  //  LOG_I(PHY,
	printf("[SCHED][eNB] eNB TX thread %d started on CPU %d\n",
	       proc->subframe,sched_getcpu());
knopp's avatar
 
knopp committed
846 847 848 849 850 851 852 853 854 855 856
#endif

  mlockall(MCL_CURRENT | MCL_FUTURE);

  //rt_set_runnable_on_cpuid(task,1);
  //cpuid = rtai_cpuid();

#ifdef HARD_RT
  rt_make_hard_real_time();
#endif

gauthier's avatar
gauthier committed
857 858 859
#ifndef USRP
  subframe_tx = (proc->subframe+1)%10;
#else
knopp's avatar
 
knopp committed
860
  subframe_tx = (proc->subframe+2)%10;
gauthier's avatar
gauthier committed
861
#endif
knopp's avatar
 
knopp committed
862
  while (!oai_exit){
knopp's avatar
 
knopp committed
863
    
knopp's avatar
 
knopp committed
864
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_TX0+(2*proc->subframe),0);
knopp's avatar
 
knopp committed
865 866
    
    
knopp's avatar
 
knopp committed
867
    //    LOG_I(PHY,"Locking mutex for eNB proc %d (IC %d,mutex %p)\n",proc->subframe,proc->instance_cnt,&proc->mutex);
knopp's avatar
 
knopp committed
868 869
    //printf("Locking mutex for eNB proc %d (subframe_tx %d))\n",proc->subframe,subframe_tx);

knopp's avatar
 
knopp committed
870 871
    if (pthread_mutex_lock(&proc->mutex_tx) != 0) {
      LOG_E(PHY,"[SCHED][eNB] error locking mutex for eNB TX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
872 873
    }
    else {
knopp's avatar
 
knopp committed
874
      
knopp's avatar
 
knopp committed
875 876
      while (proc->instance_cnt_tx < 0) {
	//	LOG_I(PHY,"Waiting and unlocking mutex for eNB proc %d (IC %d,lock %d)\n",proc->subframe,proc->instance_cnt,pthread_mutex_trylock(&proc->mutex));
knopp's avatar
 
knopp committed
877
	//printf("Waiting and unlocking mutex for eNB proc %d (subframe_tx %d)\n",proc->subframe,subframe_tx);
knopp's avatar
 
knopp committed
878
	
knopp's avatar
 
knopp committed
879
	pthread_cond_wait(&proc->cond_tx,&proc->mutex_tx);
knopp's avatar
 
knopp committed
880
      }
knopp's avatar
 
knopp committed
881 882 883
      //      LOG_I(PHY,"Waking up and unlocking mutex for eNB proc %d\n",proc->subframe);
      if (pthread_mutex_unlock(&proc->mutex_tx) != 0) {	
	LOG_E(PHY,"[SCHED][eNB] error unlocking mutex for eNB TX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
884 885
      }
    }
knopp's avatar
 
knopp committed
886 887 888
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_TX0+(2*proc->subframe),1);    
    vcd_signal_dumper_dump_variable_by_name(VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_ENB, proc->frame_tx);
    vcd_signal_dumper_dump_variable_by_name(VCD_SIGNAL_DUMPER_VARIABLES_SLOT_NUMBER_ENB, proc->subframe*2);
knopp's avatar
 
knopp committed
889
    
knopp's avatar
 
knopp committed
890 891
    if (oai_exit) break;
    
knopp's avatar
 
knopp committed
892
    if ((((PHY_vars_eNB_g[0]->lte_frame_parms.frame_type == TDD)&&(subframe_select(&PHY_vars_eNB_g[0]->lte_frame_parms,subframe_tx)==SF_DL))||
knopp's avatar
 
knopp committed
893
	 (PHY_vars_eNB_g[0]->lte_frame_parms.frame_type == FDD))) {
knopp's avatar
 
knopp committed
894

knopp's avatar
 
knopp committed
895
      phy_procedures_eNB_TX(subframe_tx,PHY_vars_eNB_g[0],0,no_relay,NULL);
knopp's avatar
 
knopp committed
896

knopp's avatar
 
knopp committed
897
    }
knopp's avatar
 
knopp committed
898 899
    if ((subframe_select(&PHY_vars_eNB_g[0]->lte_frame_parms,subframe_tx)==SF_S)) {
      phy_procedures_eNB_TX(subframe_tx,PHY_vars_eNB_g[0],0,no_relay,NULL);
knopp's avatar
 
knopp committed
900
    }
knopp's avatar
 
knopp committed
901 902
    

knopp's avatar
 
knopp committed
903
    do_OFDM_mod(subframe_tx,PHY_vars_eNB_g[0]);  
knopp's avatar
 
knopp committed
904
    
knopp's avatar
 
knopp committed
905 906
    if (pthread_mutex_lock(&proc->mutex_tx) != 0) {
      printf("[openair][SCHED][eNB] error locking mutex for eNB TX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
907
    }
knopp's avatar
 
knopp committed
908 909
    else {
      proc->instance_cnt_tx--;
knopp's avatar
 
knopp committed
910
      
knopp's avatar
 
knopp committed
911 912 913 914
      if (pthread_mutex_unlock(&proc->mutex_tx) != 0) {	
	printf("[openair][SCHED][eNB] error unlocking mutex for eNB TX proc %d\n",proc->subframe);
      }
    }
knopp's avatar
 
knopp committed
915
    
knopp's avatar
 
knopp committed
916 917 918
    proc->frame_tx++;
    if (proc->frame_tx==1024)
      proc->frame_tx=0;
knopp's avatar
 
knopp committed
919
  }    
knopp's avatar
 
knopp committed
920 921 922 923
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_TX0+(2*proc->subframe),0);        
#ifdef HARD_RT
  rt_make_soft_real_time();
#endif
knopp's avatar
 
knopp committed
924
  
knopp's avatar
 
knopp committed
925 926 927 928 929 930 931 932 933 934
#ifdef DEBUG_THREADS
  printf("Exiting eNB thread TX %d\n",proc->subframe);
#endif
  // clean task
#ifdef RTAI
  rt_task_delete(task);
#else
  eNB_thread_tx_status[proc->subframe]=0;
  pthread_exit(&eNB_thread_tx_status[proc->subframe]);
#endif
knopp's avatar
 
knopp committed
935
  
knopp's avatar
 
knopp committed
936 937 938 939 940 941 942 943 944 945 946 947 948 949 950
#ifdef DEBUG_THREADS
  printf("Exiting eNB TX thread %d\n",proc->subframe);
#endif
}

int eNB_thread_rx_status[10];
static void * eNB_thread_rx(void *param) {

  //unsigned long cpuid;
  eNB_proc_t *proc = (eNB_proc_t*)param;
  int i;
  int subframe_rx;
  //  RTIME time_in,time_out;
#ifdef RTAI
  RT_TASK *task;
951
  char task_name[8];
knopp's avatar
 
knopp committed
952 953 954 955 956 957 958 959
#endif

#if defined(ENABLE_ITTI)
  /* Wait for eNB application initialization to be complete (eNB registration to MME) */
  wait_system_ready ("Waiting for eNB application to be ready %s\r", &start_eNB);
#endif

#ifdef RTAI
960
  sprintf(task_name,"eNRX%d",proc->subframe);
knopp's avatar
 
knopp committed
961 962 963 964 965 966 967
  task = rt_task_init_schmod(nam2num(task_name), 0, 0, 0, SCHED_FIFO, 0xF);

  if (task==NULL) {
    LOG_E(PHY,"[SCHED][eNB] Problem starting eNB_proc_RX thread_index %d (%s)!!!!\n",proc->subframe,task_name);
    return 0;
  }
  else {
968
    LOG_I(PHY,"[SCHED][eNB] eNB RX thread %d started with id %p\n", /*  on CPU %d*/
knopp's avatar
 
knopp committed
969
	  proc->subframe,
970
	  task); /*,rtai_cpuid()*/
knopp's avatar
 
knopp committed
971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003
  }
#else
  LOG_I(PHY,"[SCHED][eNB] eNB RX thread %d started on CPU %d\n",
	proc->subframe,sched_getcpu());
#endif

  mlockall(MCL_CURRENT | MCL_FUTURE);

  //rt_set_runnable_on_cpuid(task,1);
  //cpuid = rtai_cpuid();

#ifdef HARD_RT
  rt_make_hard_real_time();
#endif


  subframe_rx = (proc->subframe+9)%10;

  while (!oai_exit){

    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX0+(2*proc->subframe),0);


    //    LOG_I(PHY,"Locking mutex for eNB proc %d (IC %d,mutex %p)\n",proc->subframe,proc->instance_cnt,&proc->mutex);
    if (pthread_mutex_lock(&proc->mutex_rx) != 0) {
      LOG_E(PHY,"[SCHED][eNB] error locking mutex for eNB RX proc %d\n",proc->subframe);
    }
    else {
        
      while (proc->instance_cnt_rx < 0) {
	//	LOG_I(PHY,"Waiting and unlocking mutex for eNB proc %d (IC %d,lock %d)\n",proc->subframe,proc->instance_cnt,pthread_mutex_trylock(&proc->mutex));

	pthread_cond_wait(&proc->cond_rx,&proc->mutex_rx);
knopp's avatar
 
knopp committed
1004
      }
knopp's avatar
 
knopp committed
1005 1006 1007
      //      LOG_I(PHY,"Waking up and unlocking mutex for eNB proc %d\n",proc->subframe);
      if (pthread_mutex_unlock(&proc->mutex_rx) != 0) {	
	LOG_E(PHY,"[SCHED][eNB] error unlocking mutex for eNB RX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
1008 1009
      }
    }
knopp's avatar
 
knopp committed
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023
    vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX0+(2*proc->subframe),1);    

    if (oai_exit) break;
    
    if ((((PHY_vars_eNB_g[0]->lte_frame_parms.frame_type == TDD )&&(subframe_select(&PHY_vars_eNB_g[0]->lte_frame_parms,subframe_rx)==SF_UL)) ||
	 (PHY_vars_eNB_g[0]->lte_frame_parms.frame_type == FDD))){
      phy_procedures_eNB_RX(subframe_rx,PHY_vars_eNB_g[0],0,no_relay);
    }
    if ((subframe_select(&PHY_vars_eNB_g[0]->lte_frame_parms,subframe_rx)==SF_S)){
      phy_procedures_eNB_S_RX(subframe_rx,PHY_vars_eNB_g[0],0,no_relay);
    }
      
    if (pthread_mutex_lock(&proc->mutex_rx) != 0) {
      printf("[openair][SCHED][eNB] error locking mutex for eNB RX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
1024 1025
    }
    else {
knopp's avatar
 
knopp committed
1026
      proc->instance_cnt_rx--;
knopp's avatar
 
knopp committed
1027
      
knopp's avatar
 
knopp committed
1028 1029
      if (pthread_mutex_unlock(&proc->mutex_rx) != 0) {	
	printf("[openair][SCHED][eNB] error unlocking mutex for eNB RX proc %d\n",proc->subframe);
knopp's avatar
 
knopp committed
1030 1031
      }
    }
knopp's avatar
 
knopp committed
1032 1033 1034 1035

    proc->frame_rx++;
    if (proc->frame_rx==1024)
      proc->frame_rx=0;
knopp's avatar
 
knopp committed
1036
    
knopp's avatar
 
knopp committed
1037 1038
  }
  vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RX0+(2*proc->subframe),0);        
knopp's avatar
 
knopp committed
1039
#ifdef HARD_RT
knopp's avatar
 
knopp committed
1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
  rt_make_soft_real_time();
#endif

#ifdef DEBUG_THREADS
  printf("Exiting eNB thread RX %d\n",proc->subframe);
#endif
  // clean task
#ifdef RTAI
  rt_task_delete(task);
#else
  eNB_thread_rx_status[proc->subframe]=0;
  pthread_exit(&eNB_thread_rx_status[proc->subframe]);
knopp's avatar
 
knopp committed
1052 1053
#endif

knopp's avatar
 
knopp committed
1054 1055 1056
#ifdef DEBUG_THREADS
  printf("Exiting eNB RX thread %d\n",proc->subframe);
#endif
knopp's avatar
 
knopp committed
1057 1058 1059 1060 1061 1062 1063 1064
}



void init_eNB_proc() {

  int i;

knopp's avatar
 
knopp committed
1065 1066


knopp's avatar
 
knopp committed
1067
  for (i=0;i<10;i++) {
knopp's avatar
 
knopp committed
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
    pthread_attr_init (&attr_eNB_proc_tx[i]);
    pthread_attr_setstacksize(&attr_eNB_proc_tx[i],OPENAIR_THREAD_STACK_SIZE);
    //attr_dlsch_threads.priority = 1;
    sched_param_eNB_proc_tx[i].sched_priority = sched_get_priority_max(SCHED_FIFO)-1; //OPENAIR_THREAD_PRIORITY;
    pthread_attr_setschedparam  (&attr_eNB_proc_tx[i], &sched_param_eNB_proc_tx);
    pthread_attr_setschedpolicy (&attr_eNB_proc_tx[i], SCHED_FIFO);

    pthread_attr_init (&attr_eNB_proc_rx[i]);
    pthread_attr_setstacksize(&attr_eNB_proc_rx[i],OPENAIR_THREAD_STACK_SIZE);
    //attr_dlsch_threads.priority = 1;
    sched_param_eNB_proc_rx[i].sched_priority = sched_get_priority_max(SCHED_FIFO)-1; //OPENAIR_THREAD_PRIORITY;
    pthread_attr_setschedparam  (&attr_eNB_proc_rx[i], &sched_param_eNB_proc_rx);
    pthread_attr_setschedpolicy (&attr_eNB_proc_rx[i], SCHED_FIFO);

    PHY_vars_eNB_g[0]->proc[i].instance_cnt_tx=-1;
    PHY_vars_eNB_g[0]->proc[i].instance_cnt_rx=-1;
knopp's avatar
 
knopp committed
1084
    PHY_vars_eNB_g[0]->proc[i].subframe=i;
knopp's avatar
 
knopp committed
1085 1086 1087 1088 1089 1090
    pthread_mutex_init(&PHY_vars_eNB_g[0]->proc[i].mutex_tx,NULL);
    pthread_mutex_init(&PHY_vars_eNB_g[0]->proc[i].mutex_rx,NULL);
    pthread_cond_init(&PHY_vars_eNB_g[0]->proc[i].cond_tx,NULL);
    pthread_cond_init(&PHY_vars_eNB_g[0]->proc[i].cond_rx,NULL);
    pthread_create(&PHY_vars_eNB_g[0]->proc[i].pthread_tx,NULL,eNB_thread_tx,(void*)&PHY_vars_eNB_g[0]->proc[i]);
    pthread_create(&PHY_vars_eNB_g[0]->proc[i].pthread_rx,NULL,eNB_thread_rx,(void*)&PHY_vars_eNB_g[0]->proc[i]);
knopp's avatar
 
knopp committed
1091 1092 1093 1094 1095 1096
  }
}

void kill_eNB_proc() {

  int i;
knopp's avatar
 
knopp committed
1097
  int *status_tx,*status_rx;
knopp's avatar
 
knopp committed
1098 1099

  for (i=0;i<10;i++) {
knopp's avatar
 
knopp committed
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122

#ifdef DEBUG_THREADS
    printf("Killing TX thread %d\n",i);
#endif
    PHY_vars_eNB_g[0]->proc[i].instance_cnt_tx=0; 
    pthread_cond_signal(&PHY_vars_eNB_g[0]->proc[i].cond_tx);
#ifdef DEBUG_THREADS
    printf("Joining eNB TX thread %d...",i);
#endif
    pthread_join(PHY_vars_eNB_g[0]->proc[i].pthread_tx,(void**)status_tx);
#ifdef DEBUG_THREADS
    if (status_tx) printf("status %d...",*status_tx);
#endif
#ifdef DEBUG_THREADS
    printf("Killing RX thread %d\n",i);
#endif
    PHY_vars_eNB_g[0]->proc[i].instance_cnt_rx=0; 
    pthread_cond_signal(&PHY_vars_eNB_g[0]->proc[i].cond_rx);
#ifdef DEBUG_THREADS
    printf("Joining eNB RX thread %d...",i);
#endif
    pthread_join(PHY_vars_eNB_g[0]->proc[i].pthread_rx,(void**)status_rx);
#ifdef DEBUG_THREADS 
knopp's avatar
 
knopp committed
1123
    if (status_rx) printf("status %d...",*status_rx);
knopp's avatar
 
knopp committed