diff --git a/openair1/PHY/defs.h b/openair1/PHY/defs.h
index 398861cabfc95eb2840b3be8b71951a32c4cc71a..2fef7e347d81c7656d20c097aeee3d075c7a6157 100755
--- a/openair1/PHY/defs.h
+++ b/openair1/PHY/defs.h
@@ -76,6 +76,13 @@
#define openair_free(y,x) free((y))
#define PAGE_SIZE 4096
+//#ifdef SHRLIBDEV
+//extern int rxrescale;
+//#define RX_IQRESCALELEN rxrescale
+//#else
+//#define RX_IQRESCALELEN 15
+//#endif
+
//! \brief Allocate \c size bytes of memory on the heap with alignment 16 and zero it afterwards.
//! If no more memory is available, this function will terminate the program with an assertion error.
static inline void* malloc16_clear( size_t size )
diff --git a/targets/RT/USER/lte-softmodem.c b/targets/RT/USER/lte-softmodem.c
index f16f0b9eb86bfb79bc996b7c1a1e6d35e9906c2b..ebd9e85a324c15fa7dc730ecb9386c0e30c6c53b 100644
--- a/targets/RT/USER/lte-softmodem.c
+++ b/targets/RT/USER/lte-softmodem.c
@@ -329,7 +329,15 @@ time_stats_t softmodem_stats_rx_sf[10]; // total rx time
void reset_opp_meas(void);
void print_opp_meas(void);
int transmission_mode=1;
-
+/*
+ FT: not a very clean way of managing the rescale of iqs in rx path, but this is done in
+ openair1/PHY/MODULATION/ul_7_5_kHz.c which doesn't have access to config parameters
+ to re-worked later.....
+ RX_IQRESCALELEN is setup in device libraries for all non expressmimo targets and acessed as an
+ external variable in ul_7_5_kHz.c. For expressmimo it is a macro (openair1/PHY/defs.h)
+ Regarding the value of this variable or macro: 18 is for 15 bits iqs, 15 is used for USRP, EXMIMO
+*/
+//int rxrescale;
int16_t glog_level = LOG_INFO;
int16_t glog_verbosity = LOG_MED;
@@ -361,8 +369,6 @@ int16_t osa_log_verbosity = LOG_MED;
#ifdef ETHERNET
-//char rrh_eNB_ip[20] = "127.0.0.1";
-//int rrh_eNB_port = 50000;
//char *rrh_UE_ip = "127.0.0.1";
//int rrh_UE_port = 51000;
#endif
@@ -373,6 +379,47 @@ char uecap_xer[1024],uecap_xer_in=0;
extern void *UE_thread(void *arg);
extern void init_UE_threads(void);
+/*---------------------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()
+{
+#ifdef DEBUG
+ printf("difftimes min = %lu ns ; max = %lu ns\n", min_diff_time.tv_nsec, max_diff_time.tv_nsec);
+#else
+ LOG_D(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));
@@ -949,6 +996,12 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
if (tx_offset>=(LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->lte_frame_parms.samples_per_tti))
tx_offset -= LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*phy_vars_eNB->lte_frame_parms.samples_per_tti;
+ ((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[0] = ((short*)dummy_tx_b)[2*i]<<openair0_cfg[0].iq_txshift ;
+
+ ((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[1] = ((short*)dummy_tx_b)[2*i+1]<<openair0_cfg[0].iq_txshift;
+
+
+/*
((short*)&phy_vars_eNB->lte_eNB_common_vars.txdata[0][aa][tx_offset])[0]=
#ifdef EXMIMO
((short*)dummy_tx_b)[2*i]<<4;
@@ -965,6 +1018,7 @@ void do_OFDM_mod_rt(int subframe,PHY_VARS_eNB *phy_vars_eNB)
#else
((short*)dummy_tx_b)[2*i+1]<<4;
#endif
+*/
}
// if S-subframe switch to RX in second subframe
if (subframe_select(&phy_vars_eNB->lte_frame_parms,subframe) == SF_S) {
@@ -1782,7 +1836,9 @@ static void* eNB_thread( void* arg )
PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_rx);
stop_meas( &softmodem_stats_hw );
- clock_gettime( CLOCK_MONOTONIC, &trx_time1 );
+ if (frame > 50) {
+ clock_gettime( CLOCK_MONOTONIC, &trx_time1 );
+ }
if (frame > 20){
if (rxs != spp)
@@ -1791,8 +1847,6 @@ static void* eNB_thread( void* arg )
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
// Transmit TX buffer based on timestamp from RX
-
-
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
@@ -1813,7 +1867,12 @@ static void* eNB_thread( void* arg )
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (timestamp+(openair0_cfg[card].tx_delay*spp)-openair0_cfg[card].tx_forward_nsamps)&0xffffffff );
stop_meas( &softmodem_stats_mt );
- clock_gettime( CLOCK_MONOTONIC, &trx_time2 );
+ if (frame > 50) {
+ clock_gettime( CLOCK_MONOTONIC, &trx_time2 );
+ // BMC: compute time between rx and tx
+ update_difftimes(trx_time1, trx_time2);
+ }
+
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE,0);
#else
@@ -1985,6 +2044,9 @@ eNB_thread_cleanup:
#endif
eNB_thread_status = 0;
+
+ print_difftimes();
+
return &eNB_thread_status;
}
@@ -1997,7 +2059,7 @@ static void get_options (int argc, char **argv)
// char line[1000];
// int l;
int k,i;//,j,k;
-#if defined(OAI_USRP) || defined(CPRIGW)
+#if defined(OAI_USRP) || defined(CPRIGW) //#ifndef EXMIMO?
int clock_src;
#endif
int CC_id;
@@ -2245,7 +2307,7 @@ static void get_options (int argc, char **argv)
break;
case 's':
-#if defined(OAI_USRP) || defined(CPRIGW)
+#if defined(OAI_USRP) || defined(CPRIGW) //#ifndef EXMIMO
clock_src = atoi(optarg);
@@ -2848,6 +2910,11 @@ int main( int argc, char **argv )
for (card=0; card<MAX_CARDS; card++) {
+#ifdef EXMIMO
+/* FT: for all other devices the iq_txshift value is setup in the device library */
+ openair0_cfg[card].iq_txshift=4;
+#endif
+
if(frame_parms[0]->N_RB_DL == 100) {
sample_rate = 30.72e6;
bw = 10.0e6;
@@ -2932,24 +2999,20 @@ int main( int argc, char **argv )
#ifndef EXMIMO
openair0_cfg[card].samples_per_packet = openair0_cfg[0].samples_per_packet;
+ openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
#endif
printf("HW: Configuring card %d, nb_antennas_tx/rx %d/%d\n",card,
((UE_flag==0) ? PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_tx : PHY_vars_UE_g[0][0]->lte_frame_parms.nb_antennas_tx),
((UE_flag==0) ? PHY_vars_eNB_g[0][0]->lte_frame_parms.nb_antennas_rx : PHY_vars_UE_g[0][0]->lte_frame_parms.nb_antennas_rx));
openair0_cfg[card].Mod_id = 0;
#ifdef ETHERNET/*do we need to separate ue and enb????*/
- /*
+
if (UE_flag) {
printf("ETHERNET: Configuring UE ETH for %s:%d\n",rrh_UE_ip,rrh_UE_port);
openair0_cfg[card].remote_addr = &rrh_UE_ip[0];
openair0_cfg[card].remote_port = rrh_UE_port;
- } else {
- printf("ETHERNET: Configuring eNB ETH for %s:%d\n",rrh_eNB_ip,rrh_eNB_port);
- openair0_cfg[card].remote_addr =&rrh_eNB_ip[0];
- openair0_cfg[card].remote_port =rrh_eNB_port;
- }
- */
-openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
+ }
+
#endif
openair0_cfg[card].sample_rate = sample_rate;
openair0_cfg[card].tx_bw = bw;
@@ -3028,6 +3091,11 @@ openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
else if (mode==loop_through_memory) {
}
}
+//for EXMIMO
+//openair0_cfg[0].iq_rxrescale=15; /* default value if build with EXMIMO */
+//rxrescale=openair0_cfg[0].iq_rxrescale; /* see comments near RX_IQRESCALELEN definition */
+
+
printf("Done\n");
@@ -3446,7 +3514,6 @@ openair0_cfg[card].num_rb_dl=frame_parms[0]->N_RB_DL;
if (multi_thread>0) {
printf("Killing eNB processing threads\n");
kill_eNB_proc();
-
}
}