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ddd76fadf80e566d5755153c1e4d537feaf59d32
openairinterface5g/openair1/USERSPACE_TOOLS/SCOPE/lte.c
T
ghaddab 56c3197b09 License Corrected 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5713 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-08-13 16:22:56 +00:00

469 lines
14 KiB
C
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
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.
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.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <pthread.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
//#include <sys/user.h>
//#include <errno.h>
#include <math.h>
#include <signal.h>
#include <strings.h>
#include "forms.h"
#include "lte_scope.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/vars.h"
#ifdef CBMIMO1
#include "ARCH/CBMIMO1/DEVICE_DRIVER/cbmimo1_device.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/defs.h"
#include "ARCH/COMMON/defs.h"
#endif
#ifdef PLATON
#include "daq.h"
#endif
//#include "PHY/CONFIG/vars.h"
//#include "MAC_INTERFACE/vars.h"
//#include "PHY/TOOLS/defs.h"
FD_lte_scope *form;
LTE_DL_FRAME_PARMS *frame_parms;
PHY_VARS_UE *PHY_vars_UE;
//short channel[2048];
//short channel_f[2048];
//char demod_data[2048];
short *channel[8],*channel_f[8],*rx_sig[8],**rx_sig_ptr;
short *rx_sig_f[8],**rx_sig_f_ptr;
int *sync_corr;
char *pbch_llr;
short *pbch_comp, *pdcch_comp;
short *dlsch_llr,*dlsch_comp;
int length,offset;
float avg=1;
int sach_flag;
unsigned char nb_ant_tx, nb_ant_rx;
void lte_scope_idle_callback(void) {
int i,j,ind,k,s;
float Re,Im;
float mag_sig[NB_ANTENNAS_RX*NB_ANTENNAS_TX*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig_time[NB_ANTENNAS_RX*NB_ANTENNAS_TX*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig2[FRAME_LENGTH_COMPLEX_SAMPLES],
time2[FRAME_LENGTH_COMPLEX_SAMPLES],
I[25*12*12], Q[25*12*12],
//llr[8*(3*8*6144+12)],
//llr_time[8*(3*8*6144+12)];
llr[25*12*4*7],
llr_time[25*12*4*7];
/*
mag_h[NB_ANTENNAS_RX*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8],
mag_sig2[NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8],
scat_sig_re[NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8],
scat_sig_im[NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8],
scat_sig_re2[NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8],
scat_sig_im2[NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT*8];
*/
float cum_avg;
// Channel frequency response
cum_avg = 0;
ind = 0;
for (j=0; j<4; j++) {
for (i=0;i<nb_ant_rx;i++) {
//for (j=0; j<1; j++) {
//for (i=0;i<1;i++) {
//for (k=0;k<frame_parms->symbols_per_tti*NUMBER_OF_OFDM_CARRIERS;k++){
for (k=0;k<NUMBER_OF_OFDM_CARRIERS;k++){
sig_time[ind] = (float)ind;
Re = (float)(channel_f[(j<<1)+i][2*k]);
Im = (float)(channel_f[(j<<1)+i][2*k+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
// ind+=NUMBER_OF_OFDM_CARRIERS/4; // spacing for visualization
}
}
avg = cum_avg/NUMBER_OF_USEFUL_CARRIERS;
//fl_set_xyplot_ybounds(form->channel_f,30,70);
fl_set_xyplot_data(form->channel_f,sig_time,mag_sig,ind,"","","");
// channel_t_re = sync_corr
for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
sig2[i] = (float) (sync_corr[i]);
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_im,10,90);
fl_set_xyplot_data(form->channel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
/*
// channel time resonse
cum_avg = 0;
ind = 0;
for (k=0;k<1;k++){
for (j=0;j<1;j++) {
for (i=0;i<frame_parms->ofdm_symbol_size;i++){
sig_time[ind] = (float)ind;
Re = (float)(channel[k+2*j][2*i]);
Im = (float)(channel[k+2*j][2*i+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
}
}
//fl_set_xyplot_ybounds(form->channel_t_im,10,90);
fl_set_xyplot_data(form->channel_t_im,sig_time,mag_sig,ind,"","","");
*/
// channel_t_re = rx_sig_f[0]
for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
//for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig[0][2*i])*(rx_sig[0][2*i])+(rx_sig[0][2*i+1])*(rx_sig[0][2*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_re,10,90);
//fl_set_xyplot_data(form->channel_t_re,&time2[512*12*9],&sig2[512*12*9],512*12,"","","");
fl_set_xyplot_data(form->channel_t_re,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
// channel_t_im = rx_sig[1]
if (nb_ant_rx>1) {
for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
//for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig[1][2*i])*(rx_sig[1][2*i])+(rx_sig[1][2*i+1])*(rx_sig[1][2*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_im,0,100);
//fl_set_xyplot_data(form->channel_t_im,&time2[512*12*9],&sig2[512*12*9],512*12,"","","");
fl_set_xyplot_data(form->channel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,"","","");
}
// PBCH LLR
j=0;
for(i=0;i<1920;i++) {
llr[j] = (float) pbch_llr[i];
llr_time[j] = (float) j;
/*
if (i==63)
i=127;
else if (i==191)
i=319;
*/
j++;
}
fl_set_xyplot_data(form->decoder_input,llr_time,llr,1920,"","","");
//fl_set_xyplot_ybounds(form->decoder_input,-100,100);
// PBCH I/Q
j=0;
for(i=0;i<12*12;i++) {
I[j] = pbch_comp[2*i];
Q[j] = pbch_comp[2*i+1];
j++;
/*
if (i==47)
i=96;
else if (i==191)
i=239;
*/
}
fl_set_xyplot_data(form->scatter_plot,I,Q,12*12,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
// PDCCH I/Q
j=0;
for(i=0;i<12*25*3;i++) {
I[j] = pdcch_comp[2*i];
Q[j] = pdcch_comp[2*i+1];
j++;
/*
if (i==47)
i=96;
else if (i==191)
i=239;
*/
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,12*25*3,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
// DLSCH LLR
for(i=0;i<12*12*7*2;i++) {
llr[i] = (float) dlsch_llr[i];
llr_time[i] = (float) i;
}
fl_set_xyplot_data(form->demod_out,llr_time,llr,12*12*7*2,"","","");
// fl_set_xyplot_data(form->demod_out,time2,llr,25*12*4,"","","");
fl_set_xyplot_ybounds(form->demod_out,-500,500);
// DLSCH I/Q
j=0;
for (s=2;s<12;s++) {
for(i=0;i<12*12;i++) {
I[j] = dlsch_comp[(2*25*12*s)+2*i];
Q[j] = dlsch_comp[(2*25*12*s)+2*i+1];
j++;
}
if (s==2)
s=3;
else if (s==5)
s=6;
else if (s==8)
s=9;
}
fl_set_xyplot_data(form->scatter_plot2,I,Q,j,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot2,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot2,-100,100);
usleep(500000);
}
//-----------------------------------------------------------------------------
do_scope(){
//-----------------------------------------------------------------------------
char ch;
fl_set_idle_callback(lte_scope_idle_callback, NULL);
fl_do_forms() ; /* SIGSCOPE */
}
//-----------------------------------------------------------------------------
int main(int argc, char *argv[]) {
//-----------------------------------------------------------------------------
int openair_fd,i,j;
unsigned int mem_base;
unsigned int first_symbol;
char title[20];
LTE_UE_DLSCH *lte_ue_dlsch;
LTE_UE_PDCCH *lte_ue_pdcch;
LTE_UE_PBCH *lte_ue_pbch;
unsigned int bigphys_top;
//PHY_config = malloc(sizeof(PHY_CONFIG));
//PHY_vars = malloc(sizeof(PHY_VARS));
frame_parms = malloc(sizeof(LTE_DL_FRAME_PARMS));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
printf("Opening /dev/openair0\n");
if ((openair_fd = open("/dev/openair0", O_RDONLY)) <0) {
fprintf(stderr,"Error %d opening /dev/openair0\n",openair_fd);
exit(-1);
}
printf("Getting PHY_config ...\n");
ioctl(openair_fd,openair_GET_CONFIG,frame_parms);
dump_frame_parms(frame_parms);
printf("Getting PHY_vars ...\n");
ioctl(openair_fd,openair_GET_VARS,PHY_vars_UE);
if (PHY_vars_UE->lte_ue_common_vars.txdataF == NULL) {
printf("Problem getting PHY_vars. Is UE configured?\n");
exit(-1);
}
printf("Getting BIGPHYS_top ...\n");
ioctl(openair_fd,openair_GET_BIGPHYSTOP,(void *)&bigphys_top);
printf("Bigphys_top = %p\n",bigphys_top);
printf("TX_DMA_BUFFER = %p\n",PHY_vars_UE->lte_ue_common_vars.txdataF);
printf("RX_DMA_BUFFER = %p\n",PHY_vars_UE->lte_ue_common_vars.rxdata);
printf("PHY_vars->lte_ue_common_vars.dl_ch_estimates[0] = %p\n",PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0]);
printf("PHY_vars->lte_ue_common_vars.sync_corr = %p\n",PHY_vars_UE->lte_ue_common_vars.sync_corr);
printf("PHY_vars->lte_ue_pbch_vars[0] = %p\n",PHY_vars_UE->lte_ue_pbch_vars[0]);
printf("PHY_vars->lte_ue_pdcch_vars[0] = %p\n",PHY_vars_UE->lte_ue_pdcch_vars[0]);
printf("PHY_vars->lte_ue_dlsch_vars[0] = %p\n",PHY_vars_UE->lte_ue_dlsch_vars[0]);
printf("NUMBER_OF_OFDM_CARRIERS = %d\n",NUMBER_OF_OFDM_CARRIERS);
nb_ant_tx = PHY_vars_UE->lte_frame_parms.nb_antennas_tx;
nb_ant_rx = PHY_vars_UE->lte_frame_parms.nb_antennas_rx;
printf("(TX, RX) ANTENNAS = %d, %d\n",nb_ant_tx,nb_ant_rx);
mem_base = (unsigned int) mmap(0,
BIGPHYS_NUMPAGES*4096,
PROT_READ,
MAP_PRIVATE,
openair_fd,
0);
if (mem_base != -1)
msg("MEM base= %x\n",mem_base);
else
msg("Could not map physical memory\n");
// txdata0 = (int *)(mem_base + PHY_vars_UE->lte_ue_common_vars.txdataF) -
for (i=0;i<nb_ant_rx;i++) {
for (j=0; j<4; j++) {
channel_f[(j<<1)+i] = (short*)(mem_base +
(unsigned int)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0] +
8*sizeof(int*) +
(j+i*4)*(frame_parms->symbols_per_tti*sizeof(int)*frame_parms->ofdm_symbol_size) -
bigphys_top);
channel[(j<<1)+i] = (short*)(mem_base +
(unsigned int)PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates_time +
8*sizeof(int*) +
(j+i*4)*(frame_parms->symbols_per_tti*sizeof(int)*frame_parms->ofdm_symbol_size) -
bigphys_top);
}
// fix this for visualizing more than 1 antenna!!!
rx_sig_ptr = (short **)(mem_base +
(unsigned int)PHY_vars_UE->lte_ue_common_vars.rxdata -
bigphys_top);
rx_sig[i] = (short *)(mem_base +
(unsigned int)rx_sig_ptr[i] -
bigphys_top);
rx_sig_f_ptr = (short **)(mem_base +
(unsigned int)PHY_vars_UE->lte_ue_common_vars.rxdataF -
bigphys_top);
rx_sig_f[i] = (short *)(mem_base +
(unsigned int)rx_sig_f_ptr[i] -
bigphys_top);
}
sync_corr = (int*)(mem_base +
(unsigned int)PHY_vars_UE->lte_ue_common_vars.sync_corr -
bigphys_top);
printf("sync_corr = %p\n", sync_corr);
// only if UE
lte_ue_pbch = (LTE_UE_PBCH *) (mem_base +
(unsigned int)PHY_vars_UE->lte_ue_pbch_vars[0] -
bigphys_top);
printf("lte_ue_pbch (kernel) = %p\n",PHY_vars_UE->lte_ue_pbch_vars[0]);
printf("lte_ue_pbch (local)= %p\n",lte_ue_pbch);
pbch_comp = (short*)(mem_base +
(unsigned int)lte_ue_pbch->rxdataF_comp +
8*sizeof(int*) +
8*sizeof(short*) -// because there is dl_ch_estimates_ext allocated in between
bigphys_top);
pbch_llr = (char*) (mem_base +
(unsigned int)lte_ue_pbch->llr -
bigphys_top);
printf("pbch_comp = %p\n",pbch_comp);
printf("pbch_llr= %p\n",pbch_llr);
lte_ue_pdcch = (LTE_UE_PDCCH *) (mem_base +
(unsigned int)PHY_vars_UE->lte_ue_pdcch_vars[0] -
bigphys_top);
printf("lte_ue_pdcch (kernel) = %p\n",PHY_vars_UE->lte_ue_pdcch_vars[0]);
printf("lte_ue_pdcch (local)= %p\n",lte_ue_pdcch);
pdcch_comp = (short*)(mem_base +
(unsigned int)lte_ue_pdcch->rxdataF_comp +
8*sizeof(int*) -
bigphys_top);
printf("pdcch_comp = %p\n",pdcch_comp);
lte_ue_dlsch = (LTE_UE_DLSCH *) (mem_base +
(unsigned int)PHY_vars_UE->lte_ue_dlsch_vars[0] -
bigphys_top);
printf("lte_ue_dlsch (kernel)= %p\n",PHY_vars_UE->lte_ue_dlsch_vars[0]);
printf("lte_ue_dlsch (local) = %p\n",lte_ue_dlsch);
dlsch_comp = (short*)(mem_base +
(unsigned int)lte_ue_dlsch->rxdataF_comp +
8*sizeof(int*) -
bigphys_top);
dlsch_llr = (short*) (mem_base +
(unsigned int)lte_ue_dlsch->llr[0] -
bigphys_top);
printf("dlsch_comp = %p\n",dlsch_comp);
printf("dlsch_llr = %p\n",dlsch_llr);
sprintf(title, "LTE SCOPE"),
fl_initialize(&argc, argv, title, 0, 0); /* SIGSCOPE */
form = create_form_lte_scope(); /* SIGSCOPE */
fl_show_form(form->lte_scope,FL_PLACE_HOTSPOT,FL_FULLBORDER,title); /* SIGSCOPE */
do_scope();
sleep(5);
close(openair_fd);
return(0);
}
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