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openairinterface5g/executables/lte-uesoftmodem.c
laurent b74ba0fb92 cleaning only
2023-01-19 14:52:39 +01:00

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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file lte-uesoftmodem.c
* \brief Top-level threads for eNodeB
* \author R. Knopp, F. Kaltenberger, Navid Nikaein
* \date 2012
* \version 0.1
* \company Eurecom
* \email: {knopp, florian.kaltenberger, navid.nikaein}@eurecom.fr
* \note
* \warning
*/
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <sched.h>
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
#include "assertions.h"
#include "PHY/types.h"
#include "PHY/defs_UE.h"
#include "common/ran_context.h"
#include "common/config/config_userapi.h"
#include "common/utils/load_module_shlib.h"
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
#include "radio/COMMON/common_lib.h"
#include "radio/ETHERNET/USERSPACE/LIB/if_defs.h"
//#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all
#include "PHY/phy_vars_ue.h"
#include "PHY/LTE_TRANSPORT/transport_vars.h"
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_proto.h"
#include "RRC/LTE/rrc_vars.h"
#include "PHY_INTERFACE/phy_interface_vars.h"
#include "PHY_INTERFACE/phy_stub_UE.h"
#include "PHY/TOOLS/phy_scope_interface.h"
#include "common/utils/LOG/log.h"
#include "nfapi/oai_integration/vendor_ext.h"
#include "UTIL/OTG/otg_tx.h"
#include "UTIL/OTG/otg_externs.h"
#include "UTIL/MATH/oml.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "create_tasks.h"
#include "system.h"
#include "lte-softmodem.h"
#include "executables/softmodem-common.h"
/* temporary compilation wokaround (UE/eNB split */
pthread_cond_t nfapi_sync_cond;
pthread_mutex_t nfapi_sync_mutex;
int nfapi_sync_var=-1; //!< protected by mutex \ref nfapi_sync_mutex
uint16_t sf_ahead=4;
int tddflag;
char *emul_iface;
pthread_cond_t sync_cond;
pthread_mutex_t sync_mutex;
int sync_var=-1; //!< protected by mutex \ref sync_mutex.
int config_sync_var=-1;
uint16_t runtime_phy_rx[29][6]; // SISO [MCS 0-28][RBs 0-5 : 6, 15, 25, 50, 75, 100]
uint16_t runtime_phy_tx[29][6]; // SISO [MCS 0-28][RBs 0-5 : 6, 15, 25, 50, 75, 100]
int oai_exit = 0;
unsigned int mmapped_dma=0;
UE_MAC_INST *UE_mac_inst = NULL;
uint64_t downlink_frequency[MAX_NUM_CCs][4];
int32_t uplink_frequency_offset[MAX_NUM_CCs][4];
int UE_scan = 1;
int UE_scan_carrier = 0;
runmode_t mode = normal_txrx;
FILE *input_fd=NULL;
int otg_enabled=0;
#if MAX_NUM_CCs == 1
rx_gain_t rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{130,0,0,0}};
#else
rx_gain_t rx_gain_mode[MAX_NUM_CCs][4] = {{max_gain,max_gain,max_gain,max_gain},{max_gain,max_gain,max_gain,max_gain}};
double tx_gain[MAX_NUM_CCs][4] = {{20,0,0,0},{20,0,0,0}};
double rx_gain[MAX_NUM_CCs][4] = {{130,0,0,0},{20,0,0,0}};
#endif
double rx_gain_off = 0.0;
double sample_rate=30.72e6;
double bw = 10.0e6;
static int tx_max_power[MAX_NUM_CCs]; /* = {0,0}*/;
uint8_t dci_Format = 0;
uint8_t agregation_Level =0xFF;
uint8_t nb_antenna_tx = 1;
uint8_t nb_antenna_rx = 1;
char ref[128] = "internal";
char channels[128] = "0";
int rx_input_level_dBm;
static LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs];
uint64_t num_missed_slots=0; // counter for the number of missed slots
// prototypes from function implemented in lte-ue.c, probably should be elsewhere in a include file.
extern void init_UE_stub_single_thread(int nb_inst,int eMBMS_active, int uecap_xer_in, char *emul_iface);
extern PHY_VARS_UE *init_ue_vars(LTE_DL_FRAME_PARMS *frame_parms, uint8_t UE_id, uint8_t abstraction_flag);
int transmission_mode=1;
char *usrp_args=NULL;
char *usrp_clksrc=NULL;
THREAD_STRUCT thread_struct;
/* struct for ethernet specific parameters given in eNB conf file */
eth_params_t *eth_params;
openair0_config_t openair0_cfg[MAX_CARDS];
double cpuf;
extern char uecap_xer[1024];
char uecap_xer_in=0;
int oaisim_flag=0;
/* see file openair2/LAYER2/MAC/main.c for why abstraction_flag is needed
* this is very hackish - find a proper solution
*/
uint8_t abstraction_flag=0;
bler_struct bler_data[NUM_MCS];
// needed for pdcp.c
RAN_CONTEXT_t RC;
instance_t CUuniqInstance=0;
/* forward declarations */
void set_default_frame_parms(LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]);
/*---------------------BMC: timespec helpers -----------------------------*/
struct timespec min_diff_time = { .tv_sec = 0, .tv_nsec = 0 };
struct timespec max_diff_time = { .tv_sec = 0, .tv_nsec = 0 };
struct timespec clock_difftime(struct timespec start, struct timespec end) {
struct timespec temp;
if ((end.tv_nsec-start.tv_nsec)<0) {
temp.tv_sec = end.tv_sec-start.tv_sec-1;
temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
} else {
temp.tv_sec = end.tv_sec-start.tv_sec;
temp.tv_nsec = end.tv_nsec-start.tv_nsec;
}
return temp;
}
void print_difftimes(void) {
#ifdef DEBUG
printf("difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
#else
LOG_I(HW,"difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
#endif
}
void update_difftimes(struct timespec start, struct timespec end) {
struct timespec diff_time = { .tv_sec = 0, .tv_nsec = 0 };
int changed = 0;
diff_time = clock_difftime(start, end);
if ((min_diff_time.tv_nsec == 0) || (diff_time.tv_nsec < min_diff_time.tv_nsec)) {
min_diff_time.tv_nsec = diff_time.tv_nsec;
changed = 1;
}
if ((max_diff_time.tv_nsec == 0) || (diff_time.tv_nsec > max_diff_time.tv_nsec)) {
max_diff_time.tv_nsec = diff_time.tv_nsec;
changed = 1;
}
#if 1
if (changed) print_difftimes();
#endif
}
/*------------------------------------------------------------------------*/
unsigned int build_rflocal(int txi, int txq, int rxi, int rxq) {
return (txi + (txq<<6) + (rxi<<12) + (rxq<<18));
}
unsigned int build_rfdc(int dcoff_i_rxfe, int dcoff_q_rxfe) {
return (dcoff_i_rxfe + (dcoff_q_rxfe<<8));
}
void exit_function(const char *file, const char *function, const int line, const char *s) {
int CC_id;
logClean();
printf("%s:%d %s() Exiting OAI softmodem: %s\n",file,line, function, ((s==NULL)?"":s));
oai_exit = 1;
for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
if (PHY_vars_UE_g)
if (PHY_vars_UE_g[0])
if (PHY_vars_UE_g[0][CC_id])
if (PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func)
PHY_vars_UE_g[0][CC_id]->rfdevice.trx_end_func(&PHY_vars_UE_g[0][CC_id]->rfdevice);
}
sleep(1); //allow lte-softmodem threads to exit first
if(PHY_vars_UE_g != NULL )
itti_terminate_tasks (TASK_UNKNOWN);
exit(1);
}
extern int16_t dlsch_demod_shift;
uint16_t node_number;
static void get_options(void) {
int CC_id=0;
int tddflag=0;
int dumpframe=0;
int timingadv=0;
uint8_t nfapi_mode = NFAPI_MONOLITHIC;
set_default_frame_parms(frame_parms);
CONFIG_SETRTFLAG(CONFIG_NOEXITONHELP);
/* unknown parameters on command line will be checked in main
after all init have been performed */
get_common_options(SOFTMODEM_4GUE_BIT );
paramdef_t cmdline_uemodeparams[] =CMDLINE_UEMODEPARAMS_DESC;
paramdef_t cmdline_ueparams[] =CMDLINE_UEPARAMS_DESC;
config_process_cmdline( cmdline_uemodeparams,sizeof(cmdline_uemodeparams)/sizeof(paramdef_t),NULL);
config_process_cmdline( cmdline_ueparams,sizeof(cmdline_ueparams)/sizeof(paramdef_t),NULL);
nfapi_setmode(nfapi_mode);
get_softmodem_params()->hw_timing_advance = timingadv;
if ( (cmdline_uemodeparams[CMDLINE_CALIBUERX_IDX].paramflags & PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue;
if ( (cmdline_uemodeparams[CMDLINE_CALIBUERXMED_IDX].paramflags & PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue_med;
if ( (cmdline_uemodeparams[CMDLINE_CALIBUERXBYP_IDX].paramflags & PARAMFLAG_PARAMSET) != 0) mode = rx_calib_ue_byp;
if (cmdline_uemodeparams[CMDLINE_DEBUGUEPRACH_IDX].uptr)
if ( *(cmdline_uemodeparams[CMDLINE_DEBUGUEPRACH_IDX].uptr) > 0) mode = debug_prach;
if (cmdline_uemodeparams[CMDLINE_NOL2CONNECT_IDX].uptr)
if ( *(cmdline_uemodeparams[CMDLINE_NOL2CONNECT_IDX].uptr) > 0) mode = no_L2_connect;
if (cmdline_uemodeparams[CMDLINE_CALIBPRACHTX_IDX].uptr)
if ( *(cmdline_uemodeparams[CMDLINE_CALIBPRACHTX_IDX].uptr) > 0) mode = calib_prach_tx;
if (dumpframe > 0) mode = rx_dump_frame;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
frame_parms[CC_id]->dl_CarrierFreq = downlink_frequency[0][0];
}
UE_scan=0;
if (tddflag > 0) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
frame_parms[CC_id]->frame_type = TDD;
frame_parms[CC_id]->tdd_config = tddflag;
}
}
if (frame_parms[0]->N_RB_DL !=0) {
if ( frame_parms[0]->N_RB_DL < 6 ) {
frame_parms[0]->N_RB_DL = 6;
printf ( "%i: Invalid number of ressource blocks, adjusted to 6\n",frame_parms[0]->N_RB_DL);
}
if ( frame_parms[0]->N_RB_DL > 100 ) {
frame_parms[0]->N_RB_DL = 100;
printf ( "%i: Invalid number of ressource blocks, adjusted to 100\n",frame_parms[0]->N_RB_DL);
}
if ( frame_parms[0]->N_RB_DL > 50 && frame_parms[0]->N_RB_DL < 100 ) {
frame_parms[0]->N_RB_DL = 50;
printf ( "%i: Invalid number of ressource blocks, adjusted to 50\n",frame_parms[0]->N_RB_DL);
}
if ( frame_parms[0]->N_RB_DL > 25 && frame_parms[0]->N_RB_DL < 50 ) {
frame_parms[0]->N_RB_DL = 25;
printf ( "%i: Invalid number of ressource blocks, adjusted to 25\n",frame_parms[0]->N_RB_DL);
}
UE_scan = 0;
frame_parms[0]->N_RB_UL=frame_parms[0]->N_RB_DL;
for (CC_id=1; CC_id<MAX_NUM_CCs; CC_id++) {
frame_parms[CC_id]->N_RB_DL=frame_parms[0]->N_RB_DL;
frame_parms[CC_id]->N_RB_UL=frame_parms[0]->N_RB_UL;
}
}
for (CC_id=1; CC_id<MAX_NUM_CCs; CC_id++) {
rx_gain[0][CC_id] = rx_gain[0][0];
tx_gain[0][CC_id] = tx_gain[0][0];
}
}
void set_default_frame_parms(LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]) {
int CC_id;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
frame_parms[CC_id] = (LTE_DL_FRAME_PARMS *) calloc(1, sizeof(LTE_DL_FRAME_PARMS));
/* Set some default values that may be overwritten while reading options */
frame_parms[CC_id]->frame_type = FDD;
frame_parms[CC_id]->tdd_config = 3;
frame_parms[CC_id]->tdd_config_S = 0;
frame_parms[CC_id]->N_RB_DL = 100;
frame_parms[CC_id]->N_RB_UL = 100;
frame_parms[CC_id]->Ncp = NORMAL;
frame_parms[CC_id]->Ncp_UL = NORMAL;
frame_parms[CC_id]->Nid_cell = 0;
frame_parms[CC_id]->num_MBSFN_config = 0;
frame_parms[CC_id]->nb_antenna_ports_eNB = 1;
frame_parms[CC_id]->nb_antennas_tx = 1;
frame_parms[CC_id]->nb_antennas_rx = 1;
frame_parms[CC_id]->nushift = 0;
frame_parms[CC_id]->phich_config_common.phich_resource = oneSixth;
frame_parms[CC_id]->phich_config_common.phich_duration = normal;
// UL RS Config
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift = 0;//n_DMRS1 set to 0
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupHoppingEnabled = 0;
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.sequenceHoppingEnabled = 0;
frame_parms[CC_id]->pusch_config_common.ul_ReferenceSignalsPUSCH.groupAssignmentPUSCH = 0;
frame_parms[CC_id]->prach_config_common.rootSequenceIndex=22;
frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig=1;
frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.prach_ConfigIndex=0;
frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.highSpeedFlag=0;
frame_parms[CC_id]->prach_config_common.prach_ConfigInfo.prach_FreqOffset=0;
downlink_frequency[CC_id][0] = DEFAULT_DLF; // Use float to avoid issue with frequency over 2^31.
downlink_frequency[CC_id][1] = downlink_frequency[CC_id][0];
downlink_frequency[CC_id][2] = downlink_frequency[CC_id][0];
downlink_frequency[CC_id][3] = downlink_frequency[CC_id][0];
frame_parms[CC_id]->dl_CarrierFreq=downlink_frequency[CC_id][0];
}
}
void init_openair0(LTE_DL_FRAME_PARMS *frame_parms,int rxgain) {
int card;
int i;
for (card=0; card<MAX_CARDS; card++) {
openair0_cfg[card].mmapped_dma=mmapped_dma;
openair0_cfg[card].configFilename = NULL;
if(frame_parms->N_RB_DL == 100) {
if (frame_parms->threequarter_fs) {
openair0_cfg[card].sample_rate=23.04e6;
openair0_cfg[card].samples_per_frame = 230400;
openair0_cfg[card].tx_bw = 10e6;
openair0_cfg[card].rx_bw = 10e6;
} else {
openair0_cfg[card].sample_rate=30.72e6;
openair0_cfg[card].samples_per_frame = 307200;
openair0_cfg[card].tx_bw = 10e6;
openair0_cfg[card].rx_bw = 10e6;
}
} else if(frame_parms->N_RB_DL == 50) {
openair0_cfg[card].sample_rate=15.36e6;
openair0_cfg[card].samples_per_frame = 153600;
openair0_cfg[card].tx_bw = 5e6;
openair0_cfg[card].rx_bw = 5e6;
} else if (frame_parms->N_RB_DL == 25) {
openair0_cfg[card].sample_rate=7.68e6;
openair0_cfg[card].samples_per_frame = 76800;
openair0_cfg[card].tx_bw = 2.5e6;
openair0_cfg[card].rx_bw = 2.5e6;
} else if (frame_parms->N_RB_DL == 6) {
openair0_cfg[card].sample_rate=1.92e6;
openair0_cfg[card].samples_per_frame = 19200;
openair0_cfg[card].tx_bw = 1.5e6;
openair0_cfg[card].rx_bw = 1.5e6;
}
if (frame_parms->frame_type==TDD)
openair0_cfg[card].duplex_mode = duplex_mode_TDD;
else //FDD
openair0_cfg[card].duplex_mode = duplex_mode_FDD;
openair0_cfg[card].Mod_id = 0;
openair0_cfg[card].num_rb_dl=frame_parms->N_RB_DL;
openair0_cfg[card].clock_source = get_softmodem_params()->clock_source;
openair0_cfg[card].time_source = get_softmodem_params()->timing_source;
openair0_cfg[card].tune_offset = get_softmodem_params()->tune_offset;
openair0_cfg[card].tx_num_channels=min(2,frame_parms->nb_antennas_tx);
openair0_cfg[card].rx_num_channels=min(2,frame_parms->nb_antennas_rx);
for (i=0; i<4; i++) {
if (i<openair0_cfg[card].tx_num_channels)
openair0_cfg[card].tx_freq[i] = downlink_frequency[0][i]+uplink_frequency_offset[0][i];
else
openair0_cfg[card].tx_freq[i]=0.0;
if (i<openair0_cfg[card].rx_num_channels)
openair0_cfg[card].rx_freq[i] = downlink_frequency[0][i];
else
openair0_cfg[card].rx_freq[i]=0.0;
openair0_cfg[card].autocal[i] = 1;
openair0_cfg[card].tx_gain[i] = tx_gain[0][i];
openair0_cfg[card].rx_gain[i] = rxgain - rx_gain_off;
openair0_cfg[card].configFilename = get_softmodem_params()->rf_config_file;
printf("Card %d, channel %d, Setting tx_gain %.0f, rx_gain %.0f, tx_freq %.0f, rx_freq %.0f, tune_offset %.0f\n",
card,i, openair0_cfg[card].tx_gain[i],
openair0_cfg[card].rx_gain[i],
openair0_cfg[card].tx_freq[i],
openair0_cfg[card].rx_freq[i],
openair0_cfg[card].tune_offset);
}
if (usrp_args) openair0_cfg[card].sdr_addrs = usrp_args;
}
}
/* helper function to terminate a certain ITTI task
*/
void terminate_task(task_id_t task_id, module_id_t mod_id) {
LOG_I(ENB_APP, "sending TERMINATE_MESSAGE to task %s (%d)\n", itti_get_task_name(task_id), task_id);
MessageDef *msg;
msg = itti_alloc_new_message (ENB_APP, 0, TERMINATE_MESSAGE);
itti_send_msg_to_task (task_id, ENB_MODULE_ID_TO_INSTANCE(mod_id), msg);
}
static inline void wait_nfapi_init(char *thread_name) {
printf( "waiting for NFAPI PNF connection and population of global structure (%s)\n",thread_name);
pthread_mutex_lock( &nfapi_sync_mutex );
while (nfapi_sync_var<0)
pthread_cond_wait( &nfapi_sync_cond, &nfapi_sync_mutex );
pthread_mutex_unlock(&nfapi_sync_mutex);
printf( "NFAPI: got sync (%s)\n", thread_name);
}
static void init_pdcp(int ue_id) {
uint32_t pdcp_initmask = (!IS_SOFTMODEM_NOS1) ? LINK_ENB_PDCP_TO_GTPV1U_BIT : (LINK_ENB_PDCP_TO_GTPV1U_BIT | PDCP_USE_NETLINK_BIT | LINK_ENB_PDCP_TO_IP_DRIVER_BIT);
if (IS_SOFTMODEM_RFSIM || (nfapi_getmode()==NFAPI_UE_STUB_PNF)) {
pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
}
if (IS_SOFTMODEM_NOKRNMOD)
pdcp_initmask = pdcp_initmask | UE_NAS_USE_TUN_BIT;
pdcp_module_init(pdcp_initmask, ue_id);
pdcp_set_rlc_data_req_func((send_rlc_data_req_func_t) rlc_data_req);
pdcp_set_pdcp_data_ind_func((pdcp_data_ind_func_t) pdcp_data_ind);
}
// Stupid function addition because UE itti messages queues definition is common with eNB
void *rrc_enb_process_msg(void *notUsed) {
AssertFatal(false,"");
return NULL;
}
int NB_UE_INST = 1;
int main( int argc, char **argv ) {
int CC_id;
uint8_t abstraction_flag=0;
// Default value for the number of UEs. It will hold,
// if not changed from the command line option --num-ues
configmodule_interface_t *config_mod;
start_background_system();
config_mod = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY);
if (config_mod == NULL) {
exit_fun("[SOFTMODEM] Error, configuration module init failed\n");
}
mode = normal_txrx;
memset(&openair0_cfg[0],0,sizeof(openair0_config_t)*MAX_CARDS);
logInit();
set_latency_target();
printf("Reading in command-line options\n");
for (int i=0; i<MAX_NUM_CCs; i++) tx_max_power[i]=23;
get_options ();
if (NFAPI_MODE == NFAPI_MODE_STANDALONE_PNF) {
sf_ahead = 1;
}
printf("sf_ahead = %d\n", sf_ahead);
EPC_MODE_ENABLED = !IS_SOFTMODEM_NOS1;
printf("Running with %d UE instances\n",NB_UE_INST);
#if T_TRACER
T_Config_Init();
#endif
//randominit (0);
set_taus_seed (0);
cpuf=get_cpu_freq_GHz();
pthread_cond_init(&sync_cond,NULL);
pthread_mutex_init(&sync_mutex, NULL);
printf("ITTI init\n");
itti_init(TASK_MAX, tasks_info);
init_opt();
ue_id_g = (node_number == 0) ? 0 : node_number-2; //ue_id_g = 0, 1, ...,
if(node_number == 0)
{
init_pdcp(0);
}
else
{
init_pdcp(node_number-1);
}
//TTN for D2D
printf ("RRC control socket\n");
rrc_control_socket_init();
printf ("PDCP PC5S socket\n");
pdcp_pc5_socket_init();
// to make a graceful exit when ctrl-c is pressed
set_softmodem_sighandler();
#ifndef PACKAGE_VERSION
# define PACKAGE_VERSION "UNKNOWN-EXPERIMENTAL"
#endif
LOG_I(HW, "Version: %s\n", PACKAGE_VERSION);
// init the parameters
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
frame_parms[CC_id]->nb_antennas_tx = nb_antenna_tx;
frame_parms[CC_id]->nb_antennas_rx = nb_antenna_rx;
frame_parms[CC_id]->nb_antenna_ports_eNB = 1; //initial value overwritten by initial sync later
}
if(NFAPI_MODE==NFAPI_UE_STUB_PNF || NFAPI_MODE==NFAPI_MODE_STANDALONE_PNF) {
PHY_vars_UE_g = malloc(sizeof(PHY_VARS_UE **)*NB_UE_INST);
for (int i=0; i<NB_UE_INST; i++) {
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_vars_UE_g[i] = malloc(sizeof(PHY_VARS_UE *)*MAX_NUM_CCs);
PHY_vars_UE_g[i][CC_id] = init_ue_vars(frame_parms[CC_id], i,abstraction_flag);
if (get_softmodem_params()->phy_test==1)
PHY_vars_UE_g[i][CC_id]->mac_enabled = 0;
else
PHY_vars_UE_g[i][CC_id]->mac_enabled = 1;
}
}
} else init_openair0(frame_parms[0],(int)rx_gain[0][0]);
cpuf=get_cpu_freq_GHz();
if (create_tasks_ue(NB_UE_INST) < 0) {
printf("cannot create ITTI tasks\n");
exit(-1); // need a softer mode
}
if (NFAPI_MODE==NFAPI_UE_STUB_PNF || NFAPI_MODE==NFAPI_MODE_STANDALONE_PNF) { // UE-STUB-PNF
UE_config_stub_pnf();
}
printf("ITTI tasks created\n");
mlockall(MCL_CURRENT | MCL_FUTURE);
rt_sleep_ns(10*100000000ULL);
int eMBMS_active = 0;
if (NFAPI_MODE==NFAPI_UE_STUB_PNF) { // UE-STUB-PNF
config_sync_var=0;
wait_nfapi_init("main?");
//Panos: Temporarily we will be using single set of threads for multiple UEs.
//init_UE_stub(1,eMBMS_active,uecap_xer_in,emul_iface);
init_UE_stub_single_thread(NB_UE_INST,eMBMS_active,uecap_xer_in,emul_iface);
} else if (NFAPI_MODE==NFAPI_MODE_STANDALONE_PNF) {
init_queue(&dl_config_req_tx_req_queue);
init_queue(&hi_dci0_req_queue);
init_queue(&ul_config_req_queue);
init_bler_table();
config_sync_var=0;
if (sem_init(&sfn_semaphore, 0, 0) != 0)
{
LOG_E(MAC, "sem_init() error\n");
abort();
}
init_UE_stub_single_thread(NB_UE_INST,eMBMS_active,uecap_xer_in,emul_iface);
init_UE_standalone_thread(ue_id_g);
} else {
init_UE(NB_UE_INST,eMBMS_active,uecap_xer_in,0,get_softmodem_params()->phy_test,UE_scan,UE_scan_carrier,mode,(int)rx_gain[0][0],tx_max_power[0],
frame_parms[0]);
}
if (get_softmodem_params()->phy_test==0) {
printf("Filling UE band info\n");
fill_ue_band_info();
dl_phy_sync_success (0, 0, 0, 1);
}
if (NFAPI_MODE != NFAPI_UE_STUB_PNF) {
number_of_cards = 1;
for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
PHY_vars_UE_g[0][CC_id]->rf_map.card=0;
PHY_vars_UE_g[0][CC_id]->rf_map.chain=CC_id+(get_softmodem_params()->chain_offset);
}
}
if (input_fd) {
printf("Reading in from file to antenna buffer %d\n",0);
if (fread(PHY_vars_UE_g[0][0]->common_vars.rxdata[0],
sizeof(int32_t),
frame_parms[0]->samples_per_tti*10,
input_fd) != frame_parms[0]->samples_per_tti*10)
printf("error reading from file\n");
}
if(IS_SOFTMODEM_DOSCOPE)
load_softscope("ue",NULL);
config_check_unknown_cmdlineopt(CONFIG_CHECKALLSECTIONS);
printf("Sending sync to all threads (%p,%p,%p)\n",&sync_var,&sync_cond,&sync_mutex);
pthread_mutex_lock(&sync_mutex);
sync_var=0;
pthread_cond_broadcast(&sync_cond);
pthread_mutex_unlock(&sync_mutex);
printf("sync sent\n");
/*
printf("About to call end_configmodule() from %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
We have to set properly PARAMFLAG_NOFREE
end_configmodule();
printf("Called end_configmodule() from %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
*/
// wait for end of program
printf("TYPE <CTRL-C> TO TERMINATE\n");
//getchar();
printf("Entering ITTI signals handler\n");
itti_wait_tasks_end();
printf("Returned from ITTI signal handler\n");
oai_exit=1;
printf("oai_exit=%d\n",oai_exit);
// stop threads
if(IS_SOFTMODEM_DOSCOPE)
end_forms();
printf("stopping MODEM threads\n");
pthread_cond_destroy(&sync_cond);
pthread_mutex_destroy(&sync_mutex);
// pthread_mutex_destroy(&ue_pf_po_mutex);
// *** Handle per CC_id openair0
if (PHY_vars_UE_g[0][0]->rfdevice.trx_end_func)
PHY_vars_UE_g[0][0]->rfdevice.trx_end_func(&PHY_vars_UE_g[0][0]->rfdevice);
pdcp_module_cleanup();
terminate_opt();
logClean();
printf("Bye.\n");
return 0;
}
// Read in each MCS file and build BLER-SINR-TB table
void init_bler_table(void)
{
size_t bufSize = 1024;
char * line = NULL;
char * token;
char * temp = NULL;
const char *openair_dir = getenv("OPENAIR_DIR");
if (!openair_dir)
{
LOG_E(MAC, "No $OPENAIR_DIR\n");
abort();
}
// Maybe not needed... and may not work.
memset(bler_data, 0, sizeof(bler_data));
for (unsigned int i = 0; i < NUM_MCS; i++)
{
char fName[1024];
snprintf(fName, sizeof(fName), "%s/openair1/SIMULATION/LTE_PHY/BLER_SIMULATIONS/AWGN/AWGN_results/bler_tx1_chan18_nrx1_mcs%d.csv", openair_dir, i);
FILE *pFile = fopen(fName, "r");
if (!pFile)
{
LOG_E(MAC, "Bler File ERROR! - fopen(), file: %s\n", fName);
abort();
}
int nlines = 0;
while (getline(&line, &bufSize, pFile) > 0)
{
if (!strncmp(line,"SNR",3))
{
continue;
}
if (nlines > NUM_SINR)
{
LOG_E(MAC, "BLER FILE ERROR - num lines greater than expected - file: %s\n", fName);
abort();
}
token = strtok_r(line, ";", &temp);
int ncols = 0;
while (token != NULL)
{
if (ncols > NUM_BLER_COL)
{
LOG_E(MAC, "BLER FILE ERROR - num of cols greater than expected\n");
abort();
}
bler_data[i].bler_table[nlines][ncols] = strtof(token, NULL);
ncols++;
token = strtok_r(NULL, ";", &temp);
}
nlines++;
}
bler_data[i].length = nlines;
fclose(pFile);
}
}
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