lte-softmodem.c 103 KB
Newer Older
1
/*******************************************************************************
2
    OpenAirInterface
3
    Copyright(c) 1999 - 2014 Eurecom
4

5
6
7
8
    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
9
10


11
12
13
14
    OpenAirInterface is distributed in the hope that 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.
15

16
    You should have received a copy of the GNU General Public License
17
18
    along with OpenAirInterface.The full GNU General Public License is
    included in this distribution in the file called "COPYING". If not,
19
    see <http://www.gnu.org/licenses/>.
20

21
22
23
24
   Contact Information
   OpenAirInterface Admin: openair_admin@eurecom.fr
   OpenAirInterface Tech : openair_tech@eurecom.fr
   OpenAirInterface Dev  : openair4g-devel@eurecom.fr
25

ghaddab's avatar
ghaddab committed
26
   Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
27

knopp's avatar
   
knopp committed
28
*******************************************************************************/
29
30

/*! \file lte-softmodem.c
knopp's avatar
   
knopp committed
31
 * \brief main program to control HW and scheduling
32
 * \author R. Knopp, F. Kaltenberger, Navid Nikaein
knopp's avatar
   
knopp committed
33
34
35
 * \date 2012
 * \version 0.1
 * \company Eurecom
36
 * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr, navid.nikaein@eurecom.fr
knopp's avatar
   
knopp committed
37
38
39
 * \note
 * \warning
 */
knopp's avatar
   
knopp committed
40
#define _GNU_SOURCE
41
42
43
44
45
46
47
48
49
50
#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>
51
#include <linux/sched.h>
52
53
54
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
55
#include <syscall.h>
56
57

#include "rt_wrapper.h"
58
59
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all

60
#include "assertions.h"
61
#include "msc.h"
62
63
64

#ifdef EMOS
#include <gps.h>
jiangx's avatar
jiangx committed
65
struct gps_fix_t dummy_gps_data;
66
67
68
#endif

#include "PHY/types.h"
69

70
#include "PHY/defs.h"
71
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
knopp's avatar
   
knopp committed
72
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
73

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

knopp's avatar
   
knopp committed
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
95
96
#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
#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/vars.h"
97
#include "LAYER2/MAC/proto.h"
98
99
100
101
102
103
104
105
106
#include "RRC/LITE/vars.h"
#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"
nikaeinn's avatar
nikaeinn committed
107
#include "UTIL/OTG/otg_tx.h"
108
#include "UTIL/OTG/otg_externs.h"
109
110
#include "UTIL/MATH/oml.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
111
#include "UTIL/OPT/opt.h"
112
#include "enb_config.h"
nikaeinn's avatar
nikaeinn committed
113
//#include "PHY/TOOLS/time_meas.h"
114

Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
115
116
117
118
#ifndef OPENAIR2
#include "UTIL/OTG/otg_vars.h"
#endif

119
120
#if defined(ENABLE_ITTI)
# include "intertask_interface_init.h"
121
# include "create_tasks.h"
122
123
# if defined(ENABLE_USE_MME)
#   include "s1ap_eNB.h"
124
#ifdef PDCP_USE_NETLINK
125
126
#   include "SIMULATION/ETH_TRANSPORT/proto.h"
#endif
127
# endif
128
129
#endif

130
131
132
#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#include "stats.h"
133
134
135
136
137
#endif

#define FRAME_PERIOD    100000000ULL
#define DAQ_PERIOD      66667ULL

Florian Kaltenberger's avatar
Florian Kaltenberger committed
138
//#define DEBUG_THREADS 1
knopp's avatar
   
knopp committed
139

knopp's avatar
   
knopp committed
140
141
//#define USRP_DEBUG 1

142
struct timing_info_t {
143
144
145
146
    //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;
147
148
149
} timing_info;


knopp's avatar
   
knopp committed
150

151
openair0_config_t openair0_cfg[MAX_CARDS];
knopp's avatar
   
knopp committed
152

knopp's avatar
   
knopp committed
153
154
int32_t **rxdata;
int32_t **txdata;
155
156
int setup_ue_buffers(PHY_VARS_UE **phy_vars_ue, openair0_config_t *openair0_cfg, openair0_rf_map rf_map[MAX_NUM_CCs]);
int setup_eNB_buffers(PHY_VARS_eNB **phy_vars_eNB, openair0_config_t *openair0_cfg, openair0_rf_map rf_map[MAX_NUM_CCs]);
157

158
void fill_ue_band_info(void);
159
#ifdef XFORMS
160
// current status is that every UE has a DL scope for a SINGLE eNB (eNB_id=0)
gauthier's avatar
gauthier committed
161
// at eNB 0, an UL scope for every UE
162
163
FD_lte_phy_scope_ue  *form_ue[NUMBER_OF_UE_MAX];
FD_lte_phy_scope_enb *form_enb[NUMBER_OF_UE_MAX];
164
FD_stats_form                  *form_stats=NULL,*form_stats_l2=NULL;
165
char title[255];
166
unsigned char                   scope_enb_num_ue = 1;
167
168
169
#endif //XFORMS

#ifdef RTAI
170

171
172
static long                      main_eNB_thread;
static long                      main_ue_thread;
173

174
#else
knopp's avatar
   
knopp committed
175
176
pthread_t                       main_eNB_thread;
pthread_t                       main_ue_thread;
177

178
pthread_attr_t                  attr_dlsch_threads;
179
180
pthread_attr_t                  attr_UE_thread;

181
#ifndef LOWLATENCY
182
struct sched_param              sched_param_dlsch;
183
#endif
184
#endif
knopp's avatar
   
knopp committed
185

knopp's avatar
   
knopp committed
186
187
pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
188
int sync_var=-1; //!< protected by mutex \ref sync_mutex.
189

190

191
192


193
struct sched_param              sched_param_UE_thread;
194

195
196
pthread_attr_t                  attr_eNB_proc_tx[MAX_NUM_CCs][NUM_ENB_THREADS];
pthread_attr_t                  attr_eNB_proc_rx[MAX_NUM_CCs][NUM_ENB_THREADS];
197
#ifndef LOWLATENCY
198
199
struct sched_param              sched_param_eNB_proc_tx[MAX_NUM_CCs][NUM_ENB_THREADS];
struct sched_param              sched_param_eNB_proc_rx[MAX_NUM_CCs][NUM_ENB_THREADS];
200
#endif
201
#ifdef XFORMS
knopp's avatar
   
knopp committed
202
static pthread_t                forms_thread; //xforms
203
204
205
#endif
#ifdef EMOS
static pthread_t                thread3; //emos
jiangx's avatar
jiangx committed
206
static pthread_t                thread4; //GPS
207
#endif
208

knopp's avatar
   
knopp committed
209
openair0_device openair0;
210

knopp's avatar
   
knopp committed
211

212
/*
knopp's avatar
   
knopp committed
213
214
215
  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;
216
217
218
219
*/
//extern unsigned int bigphys_top;
//extern unsigned int mem_base;

220
int                             card = 0;
knopp's avatar
   
knopp committed
221

222

223
#if defined(ENABLE_ITTI)
224
225
static volatile int             start_eNB = 0;
static volatile int             start_UE = 0;
226
#endif
227
228
229
230
231
232
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
233

234
static char                     UE_flag=0;
235
236
//static uint8_t                  eNB_id=0,UE_id=0;

237

238
uint32_t                 downlink_frequency[MAX_NUM_CCs][4];
239
int32_t                  uplink_frequency_offset[MAX_NUM_CCs][4];
gauthier's avatar
gauthier committed
240

241
openair0_rf_map rf_map[MAX_NUM_CCs];
242

243
static char                    *conf_config_file_name = NULL;
244
#if defined(ENABLE_ITTI)
245
static char                    *itti_dump_file = NULL;
knopp's avatar
   
knopp committed
246
247
#endif

248
249
250
251
int UE_scan = 1;
runmode_t mode = normal_txrx;


knopp's avatar
   
knopp committed
252
#ifdef EXMIMO
253
254
255
256
#if MAX_NUM_CCs == 1
double tx_gain[MAX_NUM_CCs][4] = {{20,20,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{20,20,0,0}};
#else
257
258
double tx_gain[MAX_NUM_CCs][4] = {{20,20,0,0},{20,20,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{20,20,0,0},{20,20,0,0}};
259
#endif
260
// these are for EXMIMO2 target only
261
/*
knopp's avatar
   
knopp committed
262
263
264
  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};
265
 */
266
// these are for EXMIMO2 card 39
267
268
269
270
271
272
unsigned int             rxg_max[4] =    {128,128,128,126};
unsigned int             rxg_med[4] =    {122,123,123,120};
unsigned int             rxg_byp[4] =    {116,117,116,116};
unsigned int             nf_max[4] =    {7,9,16,12};
unsigned int             nf_med[4] =    {12,13,22,17};
unsigned int             nf_byp[4] =    {15,20,29,23};
273
274
275
#if MAX_NUM_CCs == 1
rx_gain_t                rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain}};
#else
276
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}};
277
#endif
gauthier's avatar
gauthier committed
278
#else
kortke's avatar
kortke committed
279
280
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0}};
gauthier's avatar
gauthier committed
281
#endif
knopp's avatar
   
knopp committed
282

knopp's avatar
   
knopp committed
283
284
double sample_rate=30.72e6;
double bw = 14e6;
285

286
static int                      tx_max_power[MAX_NUM_CCs]; /* =  {0,0}*/;
287

knopp's avatar
knopp committed
288
#ifndef EXMIMO
knopp's avatar
   
knopp committed
289
290
291
char ref[128] = "internal";
char channels[128] = "0";

knopp's avatar
   
knopp committed
292
293
unsigned int samples_per_frame = 307200;
unsigned int tx_forward_nsamps;
knopp's avatar
   
knopp committed
294
295
296
int tx_delay;

#endif
297
298

int                      rx_input_level_dBm;
299
static int                      online_log_messages=0;
300
#ifdef XFORMS
301
extern int                      otg_enabled;
302
static char                     do_forms=0;
303
#else
304
int                             otg_enabled;
305
#endif
knopp's avatar
   
knopp committed
306
//int                             number_of_cards =   1;
knopp's avatar
   
knopp committed
307
#ifdef EXMIMO
308
309
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
310
#endif
311

knopp's avatar
   
knopp committed
312
static LTE_DL_FRAME_PARMS      *frame_parms[MAX_NUM_CCs];
313

knopp's avatar
   
knopp committed
314
int multi_thread=1;
Florian Kaltenberger's avatar
Florian Kaltenberger committed
315
uint32_t target_dl_mcs = 28; //maximum allowed mcs
316
uint32_t target_ul_mcs = 10;
317
318
uint8_t exit_missed_slots=1;
uint64_t num_missed_slots=0; // counter for the number of missed slots
319

knopp's avatar
   
knopp committed
320

321
time_stats_t softmodem_stats_mt; // main thread
knopp's avatar
   
knopp committed
322
time_stats_t softmodem_stats_hw; //  hw acquisition
323
324
time_stats_t softmodem_stats_tx_sf[10]; // total tx time
time_stats_t softmodem_stats_rx_sf[10]; // total rx time
nikaeinn's avatar
nikaeinn committed
325
326
void reset_opp_meas(void);
void print_opp_meas(void);
327
int transmission_mode=1;
knopp's avatar
   
knopp committed
328

knopp's avatar
   
knopp committed
329

330
int16_t           glog_level         = LOG_INFO;
gauthier's avatar
   
gauthier committed
331
int16_t           glog_verbosity     = LOG_MED;
332
int16_t           hw_log_level       = LOG_INFO;
gauthier's avatar
   
gauthier committed
333
int16_t           hw_log_verbosity   = LOG_MED;
334
int16_t           phy_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
335
int16_t           phy_log_verbosity  = LOG_MED;
336
int16_t           mac_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
337
int16_t           mac_log_verbosity  = LOG_MED;
338
int16_t           rlc_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
339
int16_t           rlc_log_verbosity  = LOG_MED;
340
int16_t           pdcp_log_level     = LOG_INFO;
gauthier's avatar
   
gauthier committed
341
int16_t           pdcp_log_verbosity = LOG_MED;
Florian Kaltenberger's avatar
Florian Kaltenberger committed
342
int16_t           rrc_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
343
int16_t           rrc_log_verbosity  = LOG_MED;
344
345
346
int16_t           opt_log_level      = LOG_INFO;
int16_t           opt_log_verbosity  = LOG_MED;

gauthier's avatar
   
gauthier committed
347
348
349
350
351
352
# if defined(ENABLE_USE_MME)
int16_t           gtpu_log_level     = LOG_DEBUG;
int16_t           gtpu_log_verbosity = LOG_MED;
int16_t           udp_log_level      = LOG_DEBUG;
int16_t           udp_log_verbosity  = LOG_MED;
#endif
353
354
355
#if defined (ENABLE_SECURITY)
int16_t           osa_log_level      = LOG_INFO;
int16_t           osa_log_verbosity  = LOG_MED;
356
#endif
357

knopp's avatar
   
knopp committed
358
359
360

#ifdef ETHERNET
char rrh_eNB_ip[20] = "127.0.0.1";
knopp's avatar
knopp committed
361
int rrh_eNB_port = 50000;
knopp's avatar
   
knopp committed
362
char *rrh_UE_ip = "127.0.0.1";
363
int rrh_UE_port = 51000;
knopp's avatar
   
knopp committed
364
365
366
#endif

char uecap_xer[1024],uecap_xer_in=0;
367
368
extern void *UE_thread(void *arg);
extern void init_UE_threads(void);
knopp's avatar
   
knopp committed
369

370
unsigned int build_rflocal(int txi, int txq, int rxi, int rxq)
371
{
knopp's avatar
   
knopp committed
372
  return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
373
374
375
}
unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe)
{
knopp's avatar
   
knopp committed
376
  return (dcoff_i_rxfe + (dcoff_q_rxfe<<8));
377
378
}

379
#ifdef LOWLATENCY
380
381
int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags)
{
382
383
384
385
386

  return syscall(__NR_sched_setattr, pid, attr, flags);
}


387
388
int sched_getattr(pid_t pid,struct sched_attr *attr,unsigned int size, unsigned int flags)
{
389
390
391

  return syscall(__NR_sched_getattr, pid, attr, size, flags);
}
392
#endif
393
#if !defined(ENABLE_ITTI)
394
395
396
397
398
399
400
401
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);
402

403
404
405
406
    // print out all the frames to stderr
    fprintf(stderr, "Error: signal %d:\n", sig);
    backtrace_symbols_fd(array, size, 2);
    exit(-1);
407
408
  } else {
    printf("trying to exit gracefully...\n");
409
    oai_exit = 1;
410
411
  }
}
412
#endif
413
414
415

void exit_fun(const char* s)
{
416
  if (s != NULL) {
417
    printf("%s %s() Exiting OAI softmodem: %s\n",__FILE__, __FUNCTION__, s);
418
419
420
421
422
  }

  oai_exit = 1;

#if defined(ENABLE_ITTI)
Florian Kaltenberger's avatar
Florian Kaltenberger committed
423
  sleep(1); //allow lte-softmodem threads to exit first
424
  itti_terminate_tasks (TASK_UNKNOWN);
425
#endif
426
427
428
429
430
431

  //rt_sleep_ns(FRAME_PERIOD);

  //exit (-1);
}

knopp's avatar
   
knopp committed
432
433
static int latency_target_fd = -1;
static int32_t latency_target_value = 0;
434
/* Latency trick - taken from cyclictest.c
knopp's avatar
   
knopp committed
435
436
437
438
439
440
441
442
443
 * 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
 */
knopp's avatar
   
knopp committed
444
445
446
447
static void set_latency_target(void)
{
  struct stat s;
  int ret;
448

knopp's avatar
   
knopp committed
449
450
  if (stat("/dev/cpu_dma_latency", &s) == 0) {
    latency_target_fd = open("/dev/cpu_dma_latency", O_RDWR);
451

knopp's avatar
   
knopp committed
452
453
    if (latency_target_fd == -1)
      return;
454

knopp's avatar
   
knopp committed
455
    ret = write(latency_target_fd, &latency_target_value, 4);
456

knopp's avatar
   
knopp committed
457
458
459
460
461
    if (ret == 0) {
      printf("# error setting cpu_dma_latency to %d!: %s\n", latency_target_value, strerror(errno));
      close(latency_target_fd);
      return;
    }
462

knopp's avatar
   
knopp committed
463
464
465
    printf("# /dev/cpu_dma_latency set to %dus\n", latency_target_value);
  }
}
466

467
#ifdef XFORMS
468

469
470
void reset_stats(FL_OBJECT *button, long arg)
{
471
472
  int i,j,k;
  PHY_VARS_eNB *phy_vars_eNB = PHY_vars_eNB_g[0][0];
473
474
475
476
477
478
479

  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_eNB[i][0]->Mdlharq; j++) {
        phy_vars_eNB->eNB_UE_stats[i].dlsch_NAK[k][j]=0;
        phy_vars_eNB->eNB_UE_stats[i].dlsch_ACK[k][j]=0;
        phy_vars_eNB->eNB_UE_stats[i].dlsch_trials[k][j]=0;
480
      }
481

482
483
484
      phy_vars_eNB->eNB_UE_stats[i].dlsch_l2_errors[k]=0;
      phy_vars_eNB->eNB_UE_stats[i].ulsch_errors[k]=0;
      phy_vars_eNB->eNB_UE_stats[i].ulsch_consecutive_errors=0;
485
486
487
488
489
490

      for (j=0; j<phy_vars_eNB->ulsch_eNB[i]->Mdlharq; j++) {
        phy_vars_eNB->eNB_UE_stats[i].ulsch_decoding_attempts[k][j]=0;
        phy_vars_eNB->eNB_UE_stats[i].ulsch_decoding_attempts_last[k][j]=0;
        phy_vars_eNB->eNB_UE_stats[i].ulsch_round_errors[k][j]=0;
        phy_vars_eNB->eNB_UE_stats[i].ulsch_round_fer[k][j]=0;
491
      }
492
    }
493

494
495
496
    phy_vars_eNB->eNB_UE_stats[i].dlsch_sliding_cnt=0;
    phy_vars_eNB->eNB_UE_stats[i].dlsch_NAK_round0=0;
    phy_vars_eNB->eNB_UE_stats[i].dlsch_mcs_offset=0;
497
498
499
  }
}

500
501
static void *scope_thread(void *arg)
{
knopp's avatar
   
knopp committed
502
  char stats_buffer[16384];
503
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
   
knopp committed
504
  FILE *UE_stats, *eNB_stats;
505
# endif
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
506
  int len = 0;
knopp's avatar
   
knopp committed
507
  struct sched_param sched_param;
508
  int UE_id;
509

510
  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1;
knopp's avatar
   
knopp committed
511
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
512

knopp's avatar
   
knopp committed
513
  printf("Scope thread has priority %d\n",sched_param.sched_priority);
514

515
# ifdef ENABLE_XFORMS_WRITE_STATS
516
517

  if (UE_flag==1)
knopp's avatar
   
knopp committed
518
    UE_stats  = fopen("UE_stats.txt", "w");
519
  else
knopp's avatar
   
knopp committed
520
    eNB_stats = fopen("eNB_stats.txt", "w");
521

522
#endif
523

knopp's avatar
   
knopp committed
524
525
  while (!oai_exit) {
    if (UE_flag==1) {
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
526
      len = dump_ue_stats (PHY_vars_UE_g[0][0], stats_buffer, 0, mode,rx_input_level_dBm);
knopp's avatar
   
knopp committed
527
      fl_set_object_label(form_stats->stats_text, stats_buffer);
528

529
530
531
532
533
      phy_scope_UE(form_ue[0],
                   PHY_vars_UE_g[0][0],
                   0,
                   0,7);

knopp's avatar
   
knopp committed
534
    } else {
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
535
536
#ifdef OPENAIR2
      len = dump_eNB_l2_stats (stats_buffer, 0);
537
      fl_set_object_label(form_stats_l2->stats_text, stats_buffer);
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
538
539
#endif
      len = dump_eNB_stats (PHY_vars_eNB_g[0][0], stats_buffer, 0);
540

Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
541
      if (MAX_NUM_CCs>1)
542
543
        len += dump_eNB_stats (PHY_vars_eNB_g[0][1], &stats_buffer[len], 0);

544
545
      fl_set_object_label(form_stats->stats_text, stats_buffer);

546
547
548
549
      for(UE_id=0; UE_id<scope_enb_num_ue; UE_id++) {
        phy_scope_eNB(form_enb[UE_id],
                      PHY_vars_eNB_g[0][0],
                      UE_id);
knopp's avatar
   
knopp committed
550
      }
551

552
    }
553

knopp's avatar
   
knopp committed
554
    //printf("doing forms\n");
Florian Kaltenberger's avatar
Florian Kaltenberger committed
555
556
    //usleep(100000); // 100 ms
    sleep(1);
knopp's avatar
   
knopp committed
557
  }
558
559

  printf("%s",stats_buffer);
560

561
# ifdef ENABLE_XFORMS_WRITE_STATS
562

563
564
565
566
567
568
  if (UE_flag==1) {
    if (UE_stats) {
      rewind (UE_stats);
      fwrite (stats_buffer, 1, len, UE_stats);
      fclose (UE_stats);
    }
569
  } else {
570
571
572
573
574
575
    if (eNB_stats) {
      rewind (eNB_stats);
      fwrite (stats_buffer, 1, len, eNB_stats);
      fclose (eNB_stats);
    }
  }
576

577
# endif
578

knopp's avatar
   
knopp committed
579
  pthread_exit((void*)arg);
580
581
582
583
584
585
}
#endif

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

jiangx's avatar
jiangx committed
586
587
588
589
590
591
592
593
void* gps_thread (void *arg)
{

  struct gps_data_t gps_data;
  struct gps_data_t *gps_data_ptr = &gps_data;
  struct sched_param sched_param;
  int ret;

594
  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1;
jiangx's avatar
jiangx committed
595
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
596

jiangx's avatar
jiangx committed
597
598
599
  printf("GPS thread has priority %d\n",sched_param.sched_priority);

  memset(&dummy_gps_data,0,sizeof(struct gps_fix_t));
600

jiangx's avatar
jiangx committed
601
602
#if GPSD_API_MAJOR_VERSION>=5
  ret = gps_open("127.0.0.1","2947",gps_data_ptr);
603

jiangx's avatar
jiangx committed
604
605
606
  if (ret!=0)
#else
  gps_data_ptr = gps_open("127.0.0.1","2947");
607
608

  if (gps_data_ptr == NULL)
jiangx's avatar
jiangx committed
609
#endif
610
611
612
613
614
  {
    printf("[EMOS] Could not open GPS\n");
    pthread_exit((void*)arg);
  }

jiangx's avatar
jiangx committed
615
616
617
618
619
#if GPSD_API_MAJOR_VERSION>=4
  else if (gps_stream(gps_data_ptr, WATCH_ENABLE,NULL) != 0)
#else
  else if (gps_query(gps_data_ptr, "w+x") != 0)
#endif
620
621
622
623
  {
    printf("[EMOS] Error sending command to GPS\n");
    pthread_exit((void*) arg);
  } else
jiangx's avatar
jiangx committed
624
625
    printf("[EMOS] Opened GPS, gps_data=%p\n", gps_data_ptr);

626
627
628

  while (!oai_exit) {
    printf("[EMOS] polling data from gps\n");
jiangx's avatar
jiangx committed
629
#if GPSD_API_MAJOR_VERSION>=5
630
631
632

    if (gps_waiting(gps_data_ptr,500)) {
      if (gps_read(gps_data_ptr) <= 0) {
jiangx's avatar
jiangx committed
633
#else
634
635
636
637
638
639
640
641

    if (gps_waiting(gps_data_ptr)) {
      if (gps_poll(gps_data_ptr) != 0) {
#endif
        printf("[EMOS] problem polling data from gps\n");
      } else {
        memcpy(&dummy_gps_data,&(gps_data_ptr->fix),sizeof(struct gps_fix_t));
        printf("[EMOS] lat %g, lon %g\n",gps_data_ptr->fix.latitude,gps_data_ptr->fix.longitude);
jiangx's avatar
jiangx committed
642
      }
643
644
645
646
647
648
649
650
    } //gps_waiting
    else {
      printf("[EMOS] WARNING: No GPS data available, storing dummy packet\n");
    }

    //rt_sleep_ns(1000000000LL);
    sleep(1);
  } //oai_exit
jiangx's avatar
jiangx committed
651
652
653
654
655

  pthread_exit((void*) arg);

}

656
657
658
659
660
661
662
663
664
665
666
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;
667

jiangx's avatar
jiangx committed
668
  int channel_buffer_size,ret;
669

670
671
672
  time_t timer;
  struct tm *now;

673
  struct sched_param sched_param;
674
675

  sched_param.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
676
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
677

678
  printf("EMOS thread has priority %d\n",sched_param.sched_priority);
679

680
681
682
683
684
685
686
687
688
689
690
691
  timer = time(NULL);
  now = localtime(&timer);

  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;

692
693
694
695
  if (fifo2file_buffer == NULL) {
    printf("[EMOS] Cound not allocate memory for fifo2file_buffer\n");
    exit(EXIT_FAILURE);
  }
696

697
698
699
700
  if ((fifo = open(CHANSOUNDER_FIFO_DEV, O_RDONLY)) < 0) {
    fprintf(stderr, "[EMOS] Error opening the fifo\n");
    exit(EXIT_FAILURE);
  }
701
702
703
704
705


  time(&starttime_tmp);
  localtime_r(&starttime_tmp,&starttime);
  snprintf(dumpfile_name,1024,"/tmp/%s_data_%d%02d%02d_%02d%02d%02d.EMOS",
706
707
           (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);
708
709

  dumpfile_id = fopen(dumpfile_name,"w");
710
711
712
713
714

  if (dumpfile_id == NULL) {
    fprintf(stderr, "[EMOS] Error opening dumpfile %s\n",dumpfile_name);
    exit(EXIT_FAILURE);
  }
715
716


jiangx's avatar
jiangx committed
717
  printf("[EMOS] starting dump, channel_buffer_size=%d, fifo %d\n",channel_buffer_size,fifo);
718

719
720
721
722
723
724
725
  while (!oai_exit) {
    /*
    bytes = rtf_read_timed(fifo, fifo2file_ptr, channel_buffer_size,100);
    if (bytes==0)
    continue;
    */
    bytes = rtf_read_all_at_once(fifo, fifo2file_ptr, channel_buffer_size);
726

727
728
729
730
    if (bytes<=0) {
      usleep(100);
      continue;
    }
731

732
733
734
    if (bytes != channel_buffer_size) {
      printf("[EMOS] ERROR! Only got %d bytes instead of %d!\n",bytes,channel_buffer_size);
    }
735

736
737
738
739
740
741
    /*
    if (UE_flag==0)
    printf("eNB: count %d, frame %d, read: %d bytes from the fifo\n",counter, ((fifo_dump_emos_eNB*)fifo2file_ptr)->frame_tx,bytes);
    else
    printf("UE: count %d, frame %d, read: %d bytes from the fifo\n",counter, ((fifo_dump_emos_UE*)fifo2file_ptr)->frame_rx,bytes);
    */
742

743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
    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);
      }
jiangx's avatar
jiangx committed
764

765
766
767
768
      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);
      }
769
    }
770
771
  }

772
773
774
  free(fifo2file_buffer);
  fclose(dumpfile_id);
  close(fifo);
775

776
777
778
779
780
  pthread_exit((void*) arg);

}
#endif

781
782


783
#if defined(ENABLE_ITTI)
784
785
786
787
788
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[] = {".    ", "..   ", "...  ", ".... ", ".....",
789
790
                                " ....", "  ...", "   ..", "    .", "     "
                               };
791
792
793
794
795
796
797
    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);
    }
798

799
800
801
802
803
    LOG_D(EMU,"\n");
  }
}
#endif

knopp's avatar
   
knopp committed
804
#if defined(ENABLE_ITTI)
805
void *l2l1_task(void *arg)
806
{
knopp's avatar
   
knopp committed
807
808
809
810
811
  MessageDef *message_p = NULL;
  int         result;

  itti_set_task_real_time(TASK_L2L1);
  itti_mark_task_ready(TASK_L2L1);
812

knopp's avatar
   
knopp committed
813
814
  if (UE_flag == 0) {
    /* Wait for the initialize message */
815
    do {
knopp's avatar
   
knopp committed
816
      if (message_p != NULL) {
817
818
        result = itti_free (ITTI_MSG_ORIGIN_ID(message_p), message_p);
        AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
knopp's avatar
   
knopp committed
819
      }
820

821
822
823
      itti_receive_msg (TASK_L2L1, &message_p);

      switch (ITTI_MSG_ID(message_p)) {
knopp's avatar
   
knopp committed
824
      case INITIALIZE_MESSAGE:
825
826
827
828
        /* Start eNB thread */
        LOG_D(EMU, "L2L1 TASK received %s\n", ITTI_MSG_NAME(message_p));
        start_eNB = 1;
        break;
knopp's avatar
   
knopp committed
829
830

      case TERMINATE_MESSAGE:
831
832
833
834
        printf("received terminate message\n");
        oai_exit=1;
        itti_exit_task ();
        break;
knopp's avatar
   
knopp committed
835
836

      default:
837
838
        LOG_E(EMU, "Received unexpected message %s\n", ITTI_MSG_NAME(message_p));
        break;
839
      }
knopp's avatar
   
knopp committed
840
    } while (ITTI_MSG_ID(message_p) != INITIALIZE_MESSAGE);
841

knopp's avatar
   
knopp committed
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
    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;
863

knopp's avatar
   
knopp committed
864
865
866
867
868
869
870
871
872
873
874
    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);
thomasl's avatar
thomasl committed
875
  } while(!oai_exit);
876

knopp's avatar
   
knopp committed
877
  return NULL;
878
879
880
}
#endif

knopp's avatar
   
knopp committed
881

882
883
void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
{
knopp's avatar
   
knopp committed
884
885
886
887

  unsigned int aa,slot_offset, slot_offset_F;
  int dummy_tx_b[7680*4] __attribute__((aligned(16)));
  int i, tx_offset;
knopp's avatar
   
knopp committed
888
  int slot_sizeF = (phy_vars_eNB->lte_frame_parms.ofdm_symbol_size)*
889
                   ((phy_vars_eNB->lte_frame_parms.Ncp==1) ? 6 : 7);
knopp's avatar
   
knopp committed
890
891

  slot_offset_F = (subframe<<1)*slot_sizeF;
892

knopp's avatar
   
knopp committed
893
894
  slot_offset = subframe*phy_vars_eNB->lte_frame_parms.samples_per_tti;

knopp's avatar
   
knopp committed
895
896
  if ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_DL)||
      ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_S))) {
897
898
    //    LOG_D(HW,"Frame %d: Generating slot %d\n",frame,next_slot);

knopp's avatar
   
knopp committed
899

knopp's avatar
   
knopp committed
900
    for (aa=0; aa<phy_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
      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);
        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);
      } 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));
        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
927
      }
knopp's avatar
   
knopp committed
928
929

      for (i=0; i<phy_vars_eNB->lte_frame_parms.samples_per_tti; i++) {
930
931
932
933
934
935
936
937
938
        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]=
knopp's avatar
   
knopp committed
939
#ifdef EXMIMO
940
          ((short*)dummy_tx_b)[2*i]<<4;
knopp's avatar
   
knopp committed
941
#else
942
          ((short*)dummy_tx_b)[2*i]<<5;
knopp's avatar
   
knopp committed
943
#endif
944
        ((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[1]=
knopp's avatar
   
knopp committed
945
#ifdef EXMIMO
946
          ((short*)dummy_tx_b)[2*i+1]<<4;
knopp's avatar
   
knopp committed
947
#else
948
          ((short*)dummy_tx_b)[2*i+1]<<5;
knopp's avatar
   
knopp committed
949
#endif
knopp's avatar
   
knopp committed
950
951
952
953
954
955
      }
    }
  }
}


956
957
958
959
960
961
962
963