lte-softmodem.c 110 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
#include <pthread.h>  //  for gettid
57
58

#include "rt_wrapper.h"
59
60
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all

61
#include "assertions.h"
62
#include "msc.h"
63
64
65

#ifdef EMOS
#include <gps.h>
jiangx's avatar
jiangx committed
66
struct gps_fix_t dummy_gps_data;
67
68
69
#endif

#include "PHY/types.h"
70

71
#include "PHY/defs.h"
72
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
knopp's avatar
   
knopp committed
73
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
74

knopp's avatar
knopp committed
75
#ifdef EXMIMO
76
#include "openair0_lib.h"
knopp's avatar
   
knopp committed
77
78
79
80
#else
#include "../../ARCH/COMMON/common_lib.h"
#endif

knopp's avatar
   
knopp committed
81
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
82
83
84

#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"
85
//#include "SCHED/defs.h"
86
87
88
89
90
91
92
93
94
95
96
97
#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"
98
#include "LAYER2/MAC/proto.h"
99
100
101
102
103
104
105
106
107
#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
108
#include "UTIL/OTG/otg_tx.h"
109
#include "UTIL/OTG/otg_externs.h"
110
111
#include "UTIL/MATH/oml.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
112
#include "UTIL/OPT/opt.h"
113
#include "enb_config.h"
nikaeinn's avatar
nikaeinn committed
114
//#include "PHY/TOOLS/time_meas.h"
115

Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
116
117
118
119
#ifndef OPENAIR2
#include "UTIL/OTG/otg_vars.h"
#endif

120
121
#if defined(ENABLE_ITTI)
# include "intertask_interface_init.h"
122
# include "create_tasks.h"
123
124
# if defined(ENABLE_USE_MME)
#   include "s1ap_eNB.h"
125
#ifdef PDCP_USE_NETLINK
126
127
#   include "SIMULATION/ETH_TRANSPORT/proto.h"
#endif
128
# endif
129
130
#endif

131
132
133
#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#include "stats.h"
134
135
136
137
138
#endif

#define FRAME_PERIOD    100000000ULL
#define DAQ_PERIOD      66667ULL

Florian Kaltenberger's avatar
Florian Kaltenberger committed
139
//#define DEBUG_THREADS 1
knopp's avatar
   
knopp committed
140

knopp's avatar
   
knopp committed
141
142
//#define USRP_DEBUG 1

143
struct timing_info_t {
144
145
146
147
  //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;
148
149
150
} timing_info;


knopp's avatar
   
knopp committed
151

152
openair0_config_t openair0_cfg[MAX_CARDS];
knopp's avatar
   
knopp committed
153

knopp's avatar
   
knopp committed
154
155
int32_t **rxdata;
int32_t **txdata;
156
157
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]);
158

159
void fill_ue_band_info(void);
160
#ifdef XFORMS
161
// current status is that every UE has a DL scope for a SINGLE eNB (eNB_id=0)
gauthier's avatar
gauthier committed
162
// at eNB 0, an UL scope for every UE
163
FD_lte_phy_scope_ue  *form_ue[NUMBER_OF_UE_MAX];
164
FD_lte_phy_scope_enb *form_enb[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
165
FD_stats_form                  *form_stats=NULL,*form_stats_l2=NULL;
166
char title[255];
167
unsigned char                   scope_enb_num_ue = 1;
168
169
170
#endif //XFORMS

#ifdef RTAI
171

172
173
static long                      main_eNB_thread;
static long                      main_ue_thread;
174

175
#else
knopp's avatar
   
knopp committed
176
177
pthread_t                       main_eNB_thread;
pthread_t                       main_ue_thread;
178

179
pthread_attr_t                  attr_dlsch_threads;
180
181
pthread_attr_t                  attr_UE_thread;

182
#ifndef LOWLATENCY
183
struct sched_param              sched_param_dlsch;
184
#endif
185
#endif
knopp's avatar
   
knopp committed
186

knopp's avatar
   
knopp committed
187
188
pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
189
int sync_var=-1; //!< protected by mutex \ref sync_mutex.
190

191

192
193


194
struct sched_param              sched_param_UE_thread;
195

196
197
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];
198
#ifndef LOWLATENCY
199
200
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];
201
#endif
202
#ifdef XFORMS
knopp's avatar
   
knopp committed
203
static pthread_t                forms_thread; //xforms
204
205
206
#endif
#ifdef EMOS
static pthread_t                thread3; //emos
jiangx's avatar
jiangx committed
207
static pthread_t                thread4; //GPS
208
#endif
209

knopp's avatar
   
knopp committed
210
openair0_device openair0;
211

knopp's avatar
   
knopp committed
212

213
/*
knopp's avatar
   
knopp committed
214
215
216
  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;
217
218
219
220
*/
//extern unsigned int bigphys_top;
//extern unsigned int mem_base;

221
int                             card = 0;
knopp's avatar
   
knopp committed
222

223

224
#if defined(ENABLE_ITTI)
225
226
static volatile int             start_eNB = 0;
static volatile int             start_UE = 0;
227
#endif
228
229
230
231
232
233
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
234

235
static char                     UE_flag=0;
236
237
//static uint8_t                  eNB_id=0,UE_id=0;

238

239
uint32_t                 downlink_frequency[MAX_NUM_CCs][4];
240
int32_t                  uplink_frequency_offset[MAX_NUM_CCs][4];
gauthier's avatar
gauthier committed
241

242
openair0_rf_map rf_map[MAX_NUM_CCs];
243

244
static char                    *conf_config_file_name = NULL;
245
#if defined(ENABLE_ITTI)
246
static char                    *itti_dump_file = NULL;
knopp's avatar
   
knopp committed
247
248
#endif

249
int UE_scan = 1;
250
int UE_scan_carrier = 0;
251
252
253
runmode_t mode = normal_txrx;


knopp's avatar
   
knopp committed
254
#ifdef EXMIMO
255
256
257
258
#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
259
260
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}};
261
#endif
262
// these are for EXMIMO2 target only
263
/*
knopp's avatar
   
knopp committed
264
265
266
  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};
267
 */
268
// these are for EXMIMO2 card 39
269
270
271
272
273
274
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};
275
276
277
#if MAX_NUM_CCs == 1
rx_gain_t                rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain}};
#else
278
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}};
279
#endif
gauthier's avatar
gauthier committed
280
#else
kortke's avatar
kortke committed
281
282
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
283
#endif
knopp's avatar
   
knopp committed
284

knopp's avatar
   
knopp committed
285
286
double sample_rate=30.72e6;
double bw = 14e6;
287

288
static int                      tx_max_power[MAX_NUM_CCs]; /* =  {0,0}*/;
289

knopp's avatar
knopp committed
290
#ifndef EXMIMO
knopp's avatar
   
knopp committed
291
292
293
char ref[128] = "internal";
char channels[128] = "0";

knopp's avatar
   
knopp committed
294
295
unsigned int samples_per_frame = 307200;
unsigned int tx_forward_nsamps;
knopp's avatar
   
knopp committed
296
297
298
int tx_delay;

#endif
299
300

int                      rx_input_level_dBm;
301
static int                      online_log_messages=0;
302
#ifdef XFORMS
303
extern int                      otg_enabled;
304
static char                     do_forms=0;
305
#else
306
int                             otg_enabled;
307
#endif
knopp's avatar
   
knopp committed
308
//int                             number_of_cards =   1;
knopp's avatar
   
knopp committed
309
#ifdef EXMIMO
310
311
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
312
#endif
313

knopp's avatar
   
knopp committed
314
static LTE_DL_FRAME_PARMS      *frame_parms[MAX_NUM_CCs];
315

knopp's avatar
   
knopp committed
316
int multi_thread=1;
Florian Kaltenberger's avatar
Florian Kaltenberger committed
317
uint32_t target_dl_mcs = 28; //maximum allowed mcs
318
uint32_t target_ul_mcs = 10;
319
320
uint8_t exit_missed_slots=1;
uint64_t num_missed_slots=0; // counter for the number of missed slots
321

knopp's avatar
   
knopp committed
322

323
time_stats_t softmodem_stats_mt; // main thread
knopp's avatar
   
knopp committed
324
time_stats_t softmodem_stats_hw; //  hw acquisition
325
326
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
327
328
void reset_opp_meas(void);
void print_opp_meas(void);
329
int transmission_mode=1;
knopp's avatar
   
knopp committed
330

knopp's avatar
   
knopp committed
331

332
int16_t           glog_level         = LOG_INFO;
gauthier's avatar
   
gauthier committed
333
int16_t           glog_verbosity     = LOG_MED;
334
int16_t           hw_log_level       = LOG_INFO;
gauthier's avatar
   
gauthier committed
335
int16_t           hw_log_verbosity   = LOG_MED;
336
int16_t           phy_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
337
int16_t           phy_log_verbosity  = LOG_MED;
338
int16_t           mac_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
339
int16_t           mac_log_verbosity  = LOG_MED;
340
int16_t           rlc_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
341
int16_t           rlc_log_verbosity  = LOG_MED;
342
int16_t           pdcp_log_level     = LOG_INFO;
gauthier's avatar
   
gauthier committed
343
int16_t           pdcp_log_verbosity = LOG_MED;
Florian Kaltenberger's avatar
Florian Kaltenberger committed
344
int16_t           rrc_log_level      = LOG_INFO;
gauthier's avatar
   
gauthier committed
345
int16_t           rrc_log_verbosity  = LOG_MED;
346
347
348
int16_t           opt_log_level      = LOG_INFO;
int16_t           opt_log_verbosity  = LOG_MED;

gauthier's avatar
   
gauthier committed
349
350
351
352
353
354
# 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
355
356
357
#if defined (ENABLE_SECURITY)
int16_t           osa_log_level      = LOG_INFO;
int16_t           osa_log_verbosity  = LOG_MED;
358
#endif
359

knopp's avatar
   
knopp committed
360
361
362

#ifdef ETHERNET
char rrh_eNB_ip[20] = "127.0.0.1";
knopp's avatar
knopp committed
363
int rrh_eNB_port = 50000;
knopp's avatar
   
knopp committed
364
char *rrh_UE_ip = "127.0.0.1";
365
int rrh_UE_port = 51000;
knopp's avatar
   
knopp committed
366
367
368
#endif

char uecap_xer[1024],uecap_xer_in=0;
369
370
extern void *UE_thread(void *arg);
extern void init_UE_threads(void);
knopp's avatar
   
knopp committed
371

372
unsigned int build_rflocal(int txi, int txq, int rxi, int rxq)
373
{
knopp's avatar
   
knopp committed
374
  return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
375
376
377
}
unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe)
{
knopp's avatar
   
knopp committed
378
  return (dcoff_i_rxfe + (dcoff_q_rxfe<<8));
379
380
}

381
#ifdef LOWLATENCY
382
383
int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags)
{
384
385
386
387
388

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


389
390
int sched_getattr(pid_t pid,struct sched_attr *attr,unsigned int size, unsigned int flags)
{
391
392
393

  return syscall(__NR_sched_getattr, pid, attr, size, flags);
}
394
#endif
395
#if !defined(ENABLE_ITTI)
396
397
398
399
400
401
402
403
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);
404

405
406
407
408
    // print out all the frames to stderr
    fprintf(stderr, "Error: signal %d:\n", sig);
    backtrace_symbols_fd(array, size, 2);
    exit(-1);
409
410
  } else {
    printf("trying to exit gracefully...\n");
411
    oai_exit = 1;
412
413
  }
}
414
#endif
nikaeinn's avatar
nikaeinn committed
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
#define KNRM  "\x1B[0m"
#define KRED  "\x1B[31m"
#define KGRN  "\x1B[32m"
#define KBLU  "\x1B[34m"
#define RESET "\033[0m"

void help (void) {
  printf (KGRN "Usage:\n");
  printf("  sudo -E lte-softmodem [options]\n");
  printf("  sudo -E ./lte-softmodem -O ../../../targets/PROJECTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.exmimo2.openEPC.conf -S -V -m 26 -t 16 -x 1 --ulsch-max-errors 100 -W\n\n");
  printf("Options:\n");
  printf("  --ulsch-max-errors set the max ULSCH erros\n");
  printf("  --calib-ue-rx set UE RX calibration\n");
  printf("  --calib-ue-rx-med \n");
  printf("  --calib-ue-rxbyp\n");
knopp's avatar
   
knopp committed
430
431
  printf("  --debug-ue-prach run normal prach power ramping, but don't continue random-access\n");
  printf("  --calib-prach-tx run normal prach with maximum power, but don't continue random-access\n");
nikaeinn's avatar
nikaeinn committed
432
433
434
  printf("  --no-L2-connect bypass L2 and upper layers\n");
  printf("  --ue_rxgain set UE RX gain\n");
  printf("  --ue_txgain set UE tx gain\n");
435
  printf("  --ue_scan_carrier set UE to scan around carrier\n");
nikaeinn's avatar
nikaeinn committed
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
  printf("  -C Set the downlink frequecny for all Component carrier\n");
  printf("  -d Enable soft scope and L1 and L2 stats (Xforms)\n");
  printf("  -F Calibrate the EXMIMO borad, available files: exmimo2_2arxg.lime exmimo2_2brxg.lime \n");
  printf("  -g Set the global log level, valide options: (9:trace, 8/7:debug, 6:info, 4:warn, 3:error)\n");
  printf("  -G Set the global log level \n");
  printf("  -h provides this help message!\n");
  printf("  -K Generate ITTI analyzser logs (similar to wireshark logs but with more details)\n");
  printf("  -m Set the maximum downlink MCS\n");
  printf("  -M IP address of RRH\n");
  printf("  -O eNB configuration file (located in targets/PROJECTS/GENERIC-LTE-EPC/CONF\n");
  printf("  -q Enable processing timing measurement of lte softmodem on per subframe basis \n");
  printf("  -R Set the PRB, valid values: 6, 25, 50, 100  \n");    
  printf("  -S Skip the missed slots/subframes \n");    
  printf("  -t Set the maximum uplink MCS\n");
  printf("  -U Set the lte softmodem as a UE\n");
  printf("  -W Enable L2 wireshark messages on localhost \n");
  printf("  -V Enable VCD (generated file will be located atopenair_dump_eNB.vcd, read it with target/RT/USER/eNB.gtkw\n");
  printf("  -x Set the transmission mode, valid options: 1 \n"RESET);    
454

nikaeinn's avatar
nikaeinn committed
455
}
456
457
void exit_fun(const char* s)
{
458
  if (s != NULL) {
459
    printf("%s %s() Exiting OAI softmodem: %s\n",__FILE__, __FUNCTION__, s);
460
461
462
463
464
  }

  oai_exit = 1;

#if defined(ENABLE_ITTI)
Florian Kaltenberger's avatar
Florian Kaltenberger committed
465
  sleep(1); //allow lte-softmodem threads to exit first
466
  itti_terminate_tasks (TASK_UNKNOWN);
467
#endif
468
469
470
471
472
473

  //rt_sleep_ns(FRAME_PERIOD);

  //exit (-1);
}

knopp's avatar
   
knopp committed
474
475
static int latency_target_fd = -1;
static int32_t latency_target_value = 0;
476
/* Latency trick - taken from cyclictest.c
knopp's avatar
   
knopp committed
477
478
479
480
481
482
483
484
485
 * 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
486
487
488
489
static void set_latency_target(void)
{
  struct stat s;
  int ret;
490

knopp's avatar
   
knopp committed
491
492
  if (stat("/dev/cpu_dma_latency", &s) == 0) {
    latency_target_fd = open("/dev/cpu_dma_latency", O_RDWR);
493

knopp's avatar
   
knopp committed
494
495
    if (latency_target_fd == -1)
      return;
496

knopp's avatar
   
knopp committed
497
    ret = write(latency_target_fd, &latency_target_value, 4);
498

knopp's avatar
   
knopp committed
499
500
501
502
503
    if (ret == 0) {
      printf("# error setting cpu_dma_latency to %d!: %s\n", latency_target_value, strerror(errno));
      close(latency_target_fd);
      return;
    }
504

knopp's avatar
   
knopp committed
505
506
507
    printf("# /dev/cpu_dma_latency set to %dus\n", latency_target_value);
  }
}
508

509
#ifdef XFORMS
510

511
512
void reset_stats(FL_OBJECT *button, long arg)
{
513
514
  int i,j,k;
  PHY_VARS_eNB *phy_vars_eNB = PHY_vars_eNB_g[0][0];
515
516
517
518
519
520
521

  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;
522
      }
523

524
525
526
      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;
527
528
529
530
531
532

      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;
533
      }
534
    }
535

536
537
538
    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;
539
540
541
  }
}

542
543
static void *scope_thread(void *arg)
{
knopp's avatar
   
knopp committed
544
  char stats_buffer[16384];
545
# ifdef ENABLE_XFORMS_WRITE_STATS
knopp's avatar
   
knopp committed
546
  FILE *UE_stats, *eNB_stats;
547
# endif
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
548
  int len = 0;
knopp's avatar
   
knopp committed
549
  struct sched_param sched_param;
550
  int UE_id, CC_id;
551

552
  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1;
knopp's avatar
   
knopp committed
553
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
554

knopp's avatar
   
knopp committed
555
  printf("Scope thread has priority %d\n",sched_param.sched_priority);
556

557
# ifdef ENABLE_XFORMS_WRITE_STATS
558
559

  if (UE_flag==1)
knopp's avatar
   
knopp committed
560
    UE_stats  = fopen("UE_stats.txt", "w");
561
  else
knopp's avatar
   
knopp committed
562
    eNB_stats = fopen("eNB_stats.txt", "w");
563

564
#endif
565

knopp's avatar
   
knopp committed
566
567
  while (!oai_exit) {
    if (UE_flag==1) {
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
568
      len = dump_ue_stats (PHY_vars_UE_g[0][0], stats_buffer, 0, mode,rx_input_level_dBm);
knopp's avatar
   
knopp committed
569
      fl_set_object_label(form_stats->stats_text, stats_buffer);
570

571
572
573
574
575
      phy_scope_UE(form_ue[0],
                   PHY_vars_UE_g[0][0],
                   0,
                   0,7);

knopp's avatar
   
knopp committed
576
    } else {
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
577
578
#ifdef OPENAIR2
      len = dump_eNB_l2_stats (stats_buffer, 0);
579
      fl_set_object_label(form_stats_l2->stats_text, stats_buffer);
Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
580
581
#endif
      len = dump_eNB_stats (PHY_vars_eNB_g[0][0], stats_buffer, 0);
582

Florian Kaltenberger's avatar
   
Florian Kaltenberger committed
583
      if (MAX_NUM_CCs>1)
584
585
        len += dump_eNB_stats (PHY_vars_eNB_g[0][1], &stats_buffer[len], 0);

586
587
      fl_set_object_label(form_stats->stats_text, stats_buffer);

588
      for(UE_id=0; UE_id<scope_enb_num_ue; UE_id++) {
589
590
591
592
593
	for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
	  phy_scope_eNB(form_enb[CC_id][UE_id],
			PHY_vars_eNB_g[0][CC_id],
			UE_id);
	}
knopp's avatar
   
knopp committed
594
      }
595

596
    }
597

knopp's avatar
   
knopp committed
598
    //printf("doing forms\n");
Florian Kaltenberger's avatar
Florian Kaltenberger committed
599
600
    //usleep(100000); // 100 ms
    sleep(1);
knopp's avatar
   
knopp committed
601
  }
602

603
  //  printf("%s",stats_buffer);
604

605
# ifdef ENABLE_XFORMS_WRITE_STATS
606

607
608
609
610
611
612
  if (UE_flag==1) {
    if (UE_stats) {
      rewind (UE_stats);
      fwrite (stats_buffer, 1, len, UE_stats);
      fclose (UE_stats);
    }
613
  } else {
614
615
616
617
618
619
    if (eNB_stats) {
      rewind (eNB_stats);
      fwrite (stats_buffer, 1, len, eNB_stats);
      fclose (eNB_stats);
    }
  }
620

621
# endif
622

knopp's avatar
   
knopp committed
623
  pthread_exit((void*)arg);
624
625
626
627
628
629
}
#endif

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

jiangx's avatar
jiangx committed
630
631
632
633
634
635
636
637
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;

638
  sched_param.sched_priority = sched_get_priority_min(SCHED_FIFO)+1;
jiangx's avatar
jiangx committed
639
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
640

jiangx's avatar
jiangx committed
641
642
643
  printf("GPS thread has priority %d\n",sched_param.sched_priority);

  memset(&dummy_gps_data,0,sizeof(struct gps_fix_t));
644

jiangx's avatar
jiangx committed
645
646
#if GPSD_API_MAJOR_VERSION>=5
  ret = gps_open("127.0.0.1","2947",gps_data_ptr);
647

jiangx's avatar
jiangx committed
648
649
650
  if (ret!=0)
#else
  gps_data_ptr = gps_open("127.0.0.1","2947");
651
652

  if (gps_data_ptr == NULL)
jiangx's avatar
jiangx committed
653
#endif
654
655
656
657
658
  {
    printf("[EMOS] Could not open GPS\n");
    pthread_exit((void*)arg);
  }

jiangx's avatar
jiangx committed
659
660
661
662
663
#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
664
665
666
667
  {
    printf("[EMOS] Error sending command to GPS\n");
    pthread_exit((void*) arg);
  } else
jiangx's avatar
jiangx committed
668
669
    printf("[EMOS] Opened GPS, gps_data=%p\n", gps_data_ptr);

670
671
672

  while (!oai_exit) {
    printf("[EMOS] polling data from gps\n");
jiangx's avatar
jiangx committed
673
#if GPSD_API_MAJOR_VERSION>=5
674
675
676

    if (gps_waiting(gps_data_ptr,500)) {
      if (gps_read(gps_data_ptr) <= 0) {
jiangx's avatar
jiangx committed
677
#else
678
679
680
681
682
683
684
685

    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
686
      }
687
688
689
690
691
692
693
694
    } //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
695
696
697
698
699

  pthread_exit((void*) arg);

}

700
701
702
703
704
705
706
707
708
709
710
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;
711

jiangx's avatar
jiangx committed
712
  int channel_buffer_size,ret;
713

714
715
716
  time_t timer;
  struct tm *now;

717
  struct sched_param sched_param;
718
719

  sched_param.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
720
  sched_setscheduler(0, SCHED_FIFO,&sched_param);
721

722
  printf("EMOS thread has priority %d\n",sched_param.sched_priority);
723

724
725
726
727
728
729
730
731
732
733
734
735
  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;

736
737
738
739
  if (fifo2file_buffer == NULL) {
    printf("[EMOS] Cound not allocate memory for fifo2file_buffer\n");
    exit(EXIT_FAILURE);
  }
740

741
742
743
744
  if ((fifo = open(CHANSOUNDER_FIFO_DEV, O_RDONLY)) < 0) {
    fprintf(stderr, "[EMOS] Error opening the fifo\n");
    exit(EXIT_FAILURE);
  }
745
746
747
748
749


  time(&starttime_tmp);
  localtime_r(&starttime_tmp,&starttime);
  snprintf(dumpfile_name,1024,"/tmp/%s_data_%d%02d%02d_%02d%02d%02d.EMOS",
750
751
           (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);
752
753

  dumpfile_id = fopen(dumpfile_name,"w");
754
755
756
757
758

  if (dumpfile_id == NULL) {
    fprintf(stderr, "[EMOS] Error opening dumpfile %s\n",dumpfile_name);
    exit(EXIT_FAILURE);
  }
759
760


jiangx's avatar
jiangx committed
761
  printf("[EMOS] starting dump, channel_buffer_size=%d, fifo %d\n",channel_buffer_size,fifo);
762

763
764
765
766
767
768
769
  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);
770

771
772
773
774
    if (bytes<=0) {
      usleep(100);
      continue;
    }
775

776
777
778
    if (bytes != channel_buffer_size) {
      printf("[EMOS] ERROR! Only got %d bytes instead of %d!\n",bytes,channel_buffer_size);
    }
779

780
781
782
783
784
785
    /*
    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);
    */
786

787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
    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
808

809
810
811
812
      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);
      }
813
    }
814
815
  }

816
817
818
  free(fifo2file_buffer);
  fclose(dumpfile_id);
  close(fifo);
819

820
821
822
823
824
  pthread_exit((void*) arg);

}
#endif

825
826


827
#if defined(ENABLE_ITTI)
828
829
830
831
832
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[] = {".    ", "..   ", "...  ", ".... ", ".....",
833
834
                                " ....", "  ...", "   ..", "    .", "     "
                               };
835
836
837
838
839
840
841
    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);
    }
842

843
844
845
846
847
    LOG_D(EMU,"\n");
  }
}
#endif

knopp's avatar
   
knopp committed
848
#if defined(ENABLE_ITTI)
849
void *l2l1_task(void *arg)
850
{
knopp's avatar
   
knopp committed
851
852
853
854
855
  MessageDef *message_p = NULL;
  int         result;

  itti_set_task_real_time(TASK_L2L1);
  itti_mark_task_ready(TASK_L2L1);
856

knopp's avatar
   
knopp committed
857
858
  if (UE_flag == 0) {
    /* Wait for the initialize message */
859
    printf("Wait for the ITTI initialize message\n");
860
    do {
knopp's avatar
   
knopp committed
861
      if (message_p != NULL) {
862
863
        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
864
      }
865

866
867
868
      itti_receive_msg (TASK_L2L1, &message_p);

      switch (ITTI_MSG_ID(message_p)) {
knopp's avatar
   
knopp committed
869
      case INITIALIZE_MESSAGE:
870
871
872
873
        /* 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
874
875

      case TERMINATE_MESSAGE:
876
877
878
879
        printf("received terminate message\n");
        oai_exit=1;
        itti_exit_task ();
        break;
knopp's avatar
   
knopp committed
880
881

      default:
882
883
        LOG_E(EMU, "Received unexpected message %s\n", ITTI_MSG_NAME(message_p));
        break;
884
      }
knopp's avatar
   
knopp committed
885
    } while (ITTI_MSG_ID(message_p) != INITIALIZE_MESSAGE);
886

knopp's avatar
   
knopp committed
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
    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;
908

knopp's avatar
   
knopp committed
909
910
911
912
913
914
915
916
917
918
919
    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
920
  } while(!oai_exit);
921

knopp's avatar
   
knopp committed
922
  return NULL;
923
924
925
}
#endif

knopp's avatar
   
knopp committed
926

927
928
void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
{
knopp's avatar
   
knopp committed
929
930
931
932

  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
933
  int slot_sizeF = (phy_vars_eNB->lte_frame_parms.ofdm_symbol_size)*
934
                   ((phy_vars_eNB->lte_frame_parms.Ncp==1) ? 6 : 7);
knopp's avatar
   
knopp committed
935
936

  slot_offset_F = (subframe<<1)*slot_sizeF;
937

knopp's avatar
   
knopp committed
938
939
  slot_offset = subframe*phy_vars_eNB->lte_frame_parms.samples_per_tti;

knopp's avatar
   
knopp committed
940
941
  if ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_DL)||
      ((subframe_select(&phy_vars_eNB->lte_frame_parms,subframe)==SF_S))) {
942
943
    //    LOG_D(HW,"Frame %d: Generating slot %d\n",frame,next_slot);

knopp's avatar
   
knopp committed
944

knopp's avatar
   
knopp committed
945
    for (aa=0; aa<phy_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
      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,
                     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,
                     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
968
      }
knopp's avatar
   
knopp committed
969
970

      for (i=0; i<phy_vars_eNB->lte_frame_parms.samples_per_tti; i++) {
971
972
973
974
975
976
977
978
979
        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
980
#ifdef EXMIMO
981
          ((short*)dummy_tx_b)[2*i]<<4;
knopp's avatar
   
knopp committed
982
#else
983
          ((short*)dummy_tx_b)[2*i]<<5;
knopp's avatar
   
knopp committed
984
#endif
985
        ((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[1]=
knopp's avatar
   
knopp committed
986
#ifdef EXMIMO
987
          ((short*)dummy_tx_b)[2*i+1]<<4;
knopp's avatar
   
knopp committed
988
#else
989
          ((short*)dummy_tx_b)[2*i+1]<<5;
knopp's avatar
   
knopp committed
990
#endif
knopp's avatar
   
knopp committed
991
992
993
994
995
      }
    }
  }
}