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calsub.c
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// Copyright (c) <2012> <Leif Asbrink>
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify,
// merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.
#include <ctype.h>
#include "globdef.h"
#include "uidef.h"
#include "fft1def.h"
#include "fft2def.h"
#include "caldef.h"
#include "thrdef.h"
#if OSNUM == OSNUM_WINDOWS
#include "wscreen.h"
#endif
#if OSNUM == OSNUM_LINUX
#include "lscreen.h"
#endif
#define INFOLINE 3
void cal_initscreen(void)
{
int i;
char s[256];
clear_screen();
sprintf(s,"%s for %s. Press F1 or '!' for info.",cal_type_text[cal_type],
rxmodes[rx_mode]);
for(i=0; i<screen_width*(2*MAX_ADCHAN); i++)cal_graph[i]=screen_height-1;
settextcolor(14);
lir_text(10,0,s);
settextcolor(7);
lir_refresh_screen();
}
void normalise_fft1_filtercorr(float *out)
{
int i, j, k;
int mm;
float t1, t2, sum[2];
mm=2*ui.rx_rf_channels;
for(i=0; i<mm*fft1_size; i++)out[i]=1000000000*fft1_filtercorr[i];
//Make the average gain equal to one (weighted by desired spectrum)
t1=0;
sum[0]=0;
sum[1]=0;
for(i=0; i<fft1_size; i++) {
t2=pow(fft1_desired[i],2.0);
t1+=t2;
k=0;
for(j=0; j<mm; j+=2) {
sum[k]+=t2*(pow(out[mm*i+j ],2.0)+
pow(out[mm*i+j+1],2.0));
k++;
}
}
sum[0]=sqrt(sum[0]/t1);
sum[1]=sqrt(sum[1]/t1);
for(i=0; i<fft1_size; i++) {
k=0;
for(j=0; j<mm; j+=2) {
out[mm*i+j ]/=sum[k];
out[mm*i+j+1]/=sum[k];
k++;
}
}
}
void write_filcorr(int siz)
{
FILE *file;
int i;
int wrbuf[10];
char s[80];
make_filfunc_filename(s);
file = fopen(s, "wb");
if (file == NULL) {
DEB"\nCould not open file %s\n",s);
lirerr(1144);
return;
}
wrbuf[2]=rx_mode;
wrbuf[3]=ui.rx_input_mode;
wrbuf[4]=genparm[FIRST_FFT_VERNR];
wrbuf[5]=ui.rx_ad_speed;
wrbuf[6]=ui.rx_rf_channels;
if(siz >= 0) {
wrbuf[0]=fft1_n;
wrbuf[1]=fft1_size;
wrbuf[7]=siz;
} else {
wrbuf[0]=fft2_n;
wrbuf[1]=fft2_size;
wrbuf[7]=0;
}
for(i=8; i<10; i++)wrbuf[i]=0;
i=fwrite(wrbuf, sizeof(int),10,file);
if(i != 10) {
errx:
fclose(file);
lirerr(1145);
return;
}
if(siz < 0) {
i=fwrite(cal_fft1_filtercorr, 2*ui.rx_rf_channels*sizeof(float),fft2_size, file);
if(i != fft2_size)goto errx;
i=fwrite(cal_fft1_desired,sizeof(float),fft2_size,file);
if(i != fft2_size)goto errx;
} else {
if(siz == 0) {
normalise_fft1_filtercorr(cal_tmp);
i=fwrite(cal_tmp, twice_rxchan*sizeof(float),fft1_size, file);
if(i != fft1_size)goto errx;
i=fwrite(fft1_desired,sizeof(float),fft1_size,file);
if(i != fft1_size)goto errx;
} else {
i=fwrite(cal_buf, 2*ui.rx_rf_channels*sizeof(float),siz, file);
if(i != siz)goto errx;
// Store fft1_desired in siz points in cal_buf2
resize_fft1_desired(fft1_size, fft1_desired, siz, cal_buf2);
i=fwrite(cal_buf2,sizeof(float),siz,file);
if(i != siz)goto errx;
}
}
i=fwrite(wrbuf, sizeof(int),10,file);
if(i != 10)goto errx;
fclose(file);
}
void do_cal_interval(void)
{
int i, j, k, l, m, n, wid,first_pulse;
unsigned char color;
int p0, ia, ib, ic, ja, jb;
int imode, lim;
int rawbytes;
int maxval[MAX_ADCHAN],minval[MAX_ADCHAN];
int old_end;
int points, mask;
int textend,ysiz,ytop;
char s[80];
float *filpwr;
float pwr_l, pwr_h;
float old_trig_power,trig_power,dc[MAX_ADCHAN],ampmax;
float noise_floor;
float t1,t2,t3;
// Collect 0.5 seconds of raw data.
rawbytes=ui.rx_ad_speed*snd[RXAD].framesize;
if(rawbytes > timf1_bytes-3*timf1_blockbytes)
rawbytes=timf1_bytes-3*timf1_blockbytes;
if(rawbytes < 0.25*ui.rx_ad_speed*snd[RXAD].framesize && fft1_size < 32768) {
lirerr(1241);
goto calint_error_exit;
}
points=rawbytes/snd[RXAD].framesize;
make_power_of_two(&points);
points >>= 1;
rawbytes=points*snd[RXAD].framesize;
if(rawbytes > fft1_bytes/2) {
rawbytes=fft1_bytes/2;
points=rawbytes/snd[RXAD].framesize;
}
filpwr=&fft1_float[points];
old_trig_power=1;
old_end=-1;
cal_ygain=1;
cal_xgain=1;
cal_interval=0;
imode=ui.rx_input_mode&(DWORD_INPUT+TWO_CHANNELS+IQ_DATA);
restart:
;
cal_signal_level=0;
cal_type=CAL_TYPE_PULSE_INTERVAL;
cal_initscreen();
lir_text(3, 1,"Connect pulse generator to all antenna inputs");
lir_text(3, 2,"Press ENTER when OK. (+),(-) for y-scale E,C for x-scale");
lir_text(0,INFOLINE,"DC offset");
lir_text(5,INFOLINE+1,"Min");
lir_text(5,INFOLINE+2,"Max");
lir_text(3,INFOLINE+3,"Level");
lir_refresh_screen();
timf1p_px=timf1p_pa;
thread_status_flag[THREAD_CAL_INTERVAL]=THRFLAG_ACTIVE;
while(thread_command_flag[THREAD_CAL_INTERVAL] == THRFLAG_ACTIVE) {
// Get power as a function of time.
// The A/D converters are AC coupled so we remove DC components.
for(i=0; i<MAX_ADCHAN; i++) {
maxval[i]=0x80000000;
minval[i]=0x7fffffff;
dc[i]=0;
}
while( ((timf1p_pa-timf1p_px+timf1_bytes)&timf1_bytemask) < rawbytes &&
thread_command_flag[THREAD_CAL_INTERVAL] == THRFLAG_ACTIVE) {
lir_await_event(EVENT_TIMF1);
}
timf1p_px=(timf1p_pa-rawbytes+timf1_bytes)&timf1_bytemask;
if( (ui.rx_input_mode & DWORD_INPUT) == 0) {
p0=timf1p_px/sizeof(short int);
mask=timf1_bytemask/sizeof(short int);
} else {
p0=timf1p_px/sizeof(int);
mask=timf1_bytemask/sizeof(int);
}
switch ( imode ) {
case 0:
// One channel 16 bit real data
for(i=0; i<points; i++) {
k=(p0+i)&mask;
dc[0]+=timf1_short_int[k];
if(minval[0]>timf1_short_int[k])minval[0]=timf1_short_int[k];
if(maxval[0]<timf1_short_int[k])maxval[0]=timf1_short_int[k];
}
dc[0]/=points;
for(i=0; i<points; i++) {
k=(p0+i)&mask;
fft1_float[i]=pow( 65536.0*(timf1_short_int[k]-dc[0]), 2.);
}
break;
case 1:
// One channel 32 bit real data.
for(i=0; i<points; i++) {
k=(p0+i)&mask;
dc[0]+=timf1_int[k];
if(minval[0]>timf1_int[k])minval[0]=timf1_int[k];
if(maxval[0]<timf1_int[k])maxval[0]=timf1_int[k];
}
dc[0]/=points;
for(i=0; i<points; i++) {
k=(p0+i)&mask;
fft1_float[i]=pow( timf1_int[k]-dc[0], 2.);
}
break;
case 2:
// Two channels 16 bit real data
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
for(j=0; j<2; j++) {
dc[j]+=timf1_short_int[k+j];
if(minval[j]>timf1_short_int[k+j])minval[j]=timf1_short_int[k+j];
if(maxval[j]<timf1_short_int[k+j])maxval[j]=timf1_short_int[k+j];
}
}
for(j=0; j<2; j++)dc[j]/=points;
for(i=0; i<points; i++) {
t1=0;
k=(p0+2*i)&mask;
for(j=0; j<2; j++) {
t2=timf1_short_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1*65536.0*65536.0;
}
break;
case 3:
// Two channels 32 bit real data
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
for(j=0; j<2; j++) {
dc[j]+=timf1_int[k+j];
if(minval[j]>timf1_int[k+j])minval[j]=timf1_int[k+j];
if(maxval[j]<timf1_int[k+j])maxval[j]=timf1_int[k+j];
}
}
for(j=0; j<2; j++)dc[j]/=points;
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
t1=0;
for(j=0; j<2; j++) {
t2=timf1_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1;
}
break;
case 4:
// One channel 16 bit IQ data
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
for(j=0; j<2; j++) {
dc[j]+=timf1_short_int[k+j];
if(minval[j]>timf1_short_int[k+j])minval[j]=timf1_short_int[k+j];
if(maxval[j]<timf1_short_int[k+j])maxval[j]=timf1_short_int[k+j];
}
}
for(j=0; j<2; j++)dc[j]/=points;
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
t1=0;
for(j=0; j<2; j++) {
t2=timf1_short_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1*65536.0*65536.0;
}
break;
case 5:
// One channel 32 bit IQ data
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
for(j=0; j<2; j++) {
dc[j]+=timf1_int[k+j];
if(minval[j]>timf1_int[k+j])minval[j]=timf1_int[k+j];
if(maxval[j]<timf1_int[k+j])maxval[j]=timf1_int[k+j];
}
}
for(j=0; j<2; j++)dc[j]/=points;
for(i=0; i<points; i++) {
k=(p0+2*i)&mask;
t1=0;
for(j=0; j<2; j++) {
t2=timf1_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1;
}
break;
case 6:
// Two channels 16 bit IQ data
for(i=0; i<points; i++) {
k=(p0+4*i)&mask;
for(j=0; j<4; j++) {
dc[j]+=timf1_short_int[k+j];
if(minval[j]>timf1_short_int[k+j])minval[j]=timf1_short_int[k+j];
if(maxval[j]<timf1_short_int[k+j])maxval[j]=timf1_short_int[k+j];
}
}
for(j=0; j<4; j++)dc[j]/=points;
for(i=0; i<points; i++) {
k=(p0+4*i)&mask;
t1=0;
for(j=0; j<4; j++) {
t2=timf1_short_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1*65536.0*65536.0;
}
break;
case 7:
// Two channels 32 bit IQ data
for(i=0; i<points; i++) {
k=(p0+4*i)&mask;
for(j=0; j<4; j++) {
dc[j]+=timf1_int[k+j];
if(minval[j]>timf1_int[k+j])minval[j]=timf1_int[k+j];
if(maxval[j]<timf1_int[k+j])maxval[j]=timf1_int[k+j];
}
}
for(j=0; j<4; j++)dc[j]/=points;
for(i=0; i<points; i++) {
k=(p0+4*i)&mask;
t1=0;
for(j=0; j<4; j++) {
t2=timf1_int[k+j]-dc[j];
t1+=t2*t2;
}
fft1_float[i]=t1;
}
break;
}
lir_sched_yield();
cal_signal_level=BIGFLOAT;
if( (ui.rx_input_mode&(DWORD_INPUT)) == 0)lim=0x7ff0;
else lim=0x7ff00000;
for(j=0; j<ui.rx_ad_channels; j++) {
sprintf(s," %4.2f ",dc[j]);
lir_text(10+15*j,INFOLINE,s);
sprintf(s," %d ",minval[j]);
lir_text(10+15*j,INFOLINE+1,s);
sprintf(s," %d ",maxval[j]);
lir_text(10+15*j,INFOLINE+2,s);
t1=-minval[j];
if(t1<maxval[j])t1=maxval[j];
if(t1 < cal_signal_level)cal_signal_level=t1;
if(minval[j] <= -lim || maxval[j] >= lim) {
lir_text(10+15*j,INFOLINE+3,"OVERFLOW");
t1=1;
} else {
t1/=lim;
sprintf(s," %1.6f%% ",100*t1);
lir_text(10+15*j,INFOLINE+3,s);
}
}
cal_signal_level/=lim;
// Find the largest power value and point wid to it.
trig_power=0;
wid=0;
for(i=0; i<points; i++) {
if(trig_power < fft1_float[i]) {
trig_power=fft1_float[i];
wid=i;
}
}
lir_sched_yield();
// Get an approximate width of the pulse (remember it may have a
// very ugly shape!)
i=wid;
while( i<points-3 && (fft1_float[i] >= trig_power/20 ||
fft1_float[i+1] >= trig_power/20 ||
fft1_float[i+2] >= trig_power/20 ||
fft1_float[i+3] >= trig_power/20 )) {
i++;
if(i-wid >100)goto skip;
}
while( wid>2 && (fft1_float[wid] >= trig_power/20 ||
fft1_float[wid-1] >= trig_power/20 ||
fft1_float[wid-2] >= trig_power/20 ||
fft1_float[wid-3] >= trig_power/20 )) {
wid--;
if(i-wid > 100)goto skip;
}
wid=(i-wid);
wid=wid/2+1;
// Low pass filter the power function and store in filpwr
for(i=wid; i<points; i++) {
t1=0;
for(j=i-wid; j<=i; j++) {
t1+=fft1_float[j];
}
filpwr[i-wid/2]=t1/wid;
}
// Save the maximum amplitude and make trig power 31.6 times smaller
// than the maximum value (-15dB)
ampmax=sqrt(trig_power);
if(trig_power > old_trig_power)old_trig_power=trig_power;
trig_power=old_trig_power/31.6;
// Remember trig_power for the next set of data.
old_trig_power/=2;
ia=0;
i=wid;
if(wid < points/16) {
// find the position of the first pulse
interval_init:
;
while( i<points-3*wid && filpwr[i] <= trig_power)i++;
ja=i;
while( i<points-wid && filpwr[i] >= trig_power/20)i++;
if(ja==wid)goto interval_init;
jb=i;
t1=0;
for(k=ja; k<jb; k++) {
if(fft1_float[k] > t1) {
t1=fft1_float[k];
ia=k;
}
}
first_pulse=ia;
// Find sucessive pulses and store the intervals in cal_tmp
k=0;
cal_interval=0;
j=0;
find_interval:
;
while( i<points-wid && filpwr[i] <= trig_power)i++;
ja=i;
while( i<points-wid && filpwr[i] >= trig_power/20)i++;
jb=i;
t1=0;
ib=i;
for(k=ja; k<jb; k++) {
if(fft1_float[k] > t1) {
t1=fft1_float[k];
ib=k;
}
}
if(i<points-wid) {
if(ib-ia<4*wid)goto find_interval;
cal_tmp[j]=ib-ia;
j++;
ia=ib;
if(j<fft1_size)goto find_interval;
}
// Since the pulses may vary in amplitude by more than we allow for in
// the setting of the trigger level we sort the intervals in ascending order
// and take desicions if the interval is 1,2 or 3 pulses.
if(j>0) {
for(i=0; i<j-1; i++) {
for(k=i+1; k<j; k++) {
if(cal_tmp[k]<cal_tmp[i]) {
t1=cal_tmp[k];
cal_tmp[k]=cal_tmp[i];
cal_tmp[i]=t1;
}
}
}
i=j/4+1;
t1=0;
while(i<j && cal_tmp[i-1]>0.7*cal_tmp[i]) {
t1+=cal_tmp[i];
i++;
}
i-=(j/4+1);
if(i != 0) {
t1/=i;
k=0;
for(i=0; i<j; i++) {
if(cal_tmp[i]>0.8*t1 && cal_tmp[i]<1.2*t1) {
cal_interval+=cal_tmp[i];
k++;
} else {
if(cal_tmp[i]>1.8*t1 && cal_tmp[i]<2.2*t1) {
cal_interval+=cal_tmp[i];
k+=2;
} else {
if(cal_tmp[i]>2.7*t1 && cal_tmp[i]<3.3*t1) {
cal_interval+=cal_tmp[i];
k+=3;
}
}
}
}
cal_interval/=k;
// Get the noise floor.
// First locate the smallest power value in the filtered power vs time curve.
pwr_l=BIGFLOAT;
pwr_h=0;
for(i=wid; i<points-wid; i++) {
if(pwr_l>filpwr[i])pwr_l=filpwr[i];
if(pwr_h<filpwr[i])pwr_h=filpwr[i];
}
// Assume the noise floor is 10dB above this level
pwr_l*=10;
// Limit our guess to the range -10dB to -60 dB
if(pwr_l < 0.000001*pwr_h)pwr_l=0.000001*pwr_h;
if(pwr_l > 0.1*pwr_h)pwr_l=0.1*pwr_h;
// Count the number of points above the noise floor and
// get the average value of the points below the noise floor.
j=0;
get_floor:
;
t2=0;
k=0;
j++;
if(j < 10) {
for(i=wid; i<points-wid; i++) {
if(filpwr[i]<pwr_l) {
k++;
t2+=fft1_float[i];
}
}
t2/=k;
if(k < 0.4*(points-2*wid)) {
pwr_l*=3.333;
goto get_floor;
}
if(k > 0.6*(points-2*wid)) {
if(pwr_l > 4*t2) {
pwr_l=3*t2;
goto get_floor;
} else {
if(pwr_l < 2*t2) {
pwr_l/=2;
goto get_floor;
}
}
}
} else {
t2=pwr_h;
}
noise_floor=pwr_h/t2;
// Show one of the pulses.
while(first_pulse+7*(screen_width>>3) > points)
first_pulse -= cal_interval;
while(first_pulse < (screen_width>>3))
first_pulse += cal_interval;
if(first_pulse+7*(screen_width>>3) <= points) {
ic=first_pulse+7*(screen_width>>3);
ia=first_pulse-(screen_width>>3);
for(j=0; j<=ui.rx_ad_channels; j++) {
m=screen_width*j;
n=screen_width*(ui.rx_ad_channels+1);
for(i=1; i<=old_end; i++) {
lir_line(cal_graph[n+i-1], cal_graph[m+i-1],
cal_graph[n+i ], cal_graph[m+i ],0);
if(kill_all_flag) goto calint_error_exit;
}
}
textend=(INFOLINE+4)*text_height;
ytop=textend+screen_height*0.3;
ysiz=screen_height-ytop;
n=-1;
for(j=ia; j<ic; j++) {
i=(screen_width>>3)+cal_xgain*(j-first_pulse);
if(i>=0 && i<screen_width) {
n++;
if( (n&0x7f)==0) lir_sched_yield();
old_end=n;
cal_graph[screen_width*(ui.rx_ad_channels+1)+n]=i;
cal_graph[n]=textend+screen_height*(0.4-0.008*log(fft1_float[j]));
switch ( imode ) {
// One channel 16 bit
case 0:
k=(p0+j)&mask;
t2=4*6553.6*cal_ygain*timf1_short_int[k]/ampmax;
if(t2 <-0.45)t2=-0.45;
if(t2 >0.45)t2=0.45;
cal_graph[screen_width+n]=ytop+ysiz*(0.5-t2);
m=1;
break;
// One channel 32 bit
case 1:
k=(p0+j)&mask;
t2=0.4*cal_ygain*timf1_int[k]/ampmax;
if(t2 <-0.45)t2=-0.45;
if(t2 >0.45)t2=0.45;
cal_graph[screen_width+n]=ytop+ysiz*(0.5-t2);
m=1;
break;
// Two channels 16 bit real data
case 2:
k=(p0+2*j)&mask;
for(m=0; m<2; m++) {
t2=2*6553.6*cal_ygain*timf1_short_int[k+m]/ampmax;
if(t2 <-0.22)t2=-0.22;
if(t2 >0.22)t2=0.22;
if(m == 1)t2-=0.5;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.25-t2);
}
m=2;
break;
// Two channels 32 bit real data
case 3:
k=(p0+2*j)&mask;
for(m=0; m<2; m++) {
t2=0.4*cal_ygain*timf1_int[k+m]/ampmax;
if(t2 <-0.22)t2=-0.22;
if(t2 >0.22)t2=0.22;
if(m == 1)t2-=0.5;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.25-t2);
}
m=2;
break;
// One channel 16 bit IQ data
case 4:
k=(p0+2*j)&mask;
for(m=0; m<2; m++) {
t2=4*6553.6*cal_ygain*timf1_short_int[k+m]/ampmax;
if(t2 <-0.45)t2=-0.45;
if(t2 >0.45)t2=0.45;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.5-t2);
}
m=2;
break;
// One channel 32 bit IQ data
case 5:
k=(p0+2*j)&mask;
for(m=0; m<2; m++) {
t2=0.4*cal_ygain*timf1_int[k+m]/ampmax;
if(t2 <-0.45)t2=-0.45;
if(t2 >0.45)t2=0.45;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.5-t2);
}
m=2;
break;
// Two channels 16 bit IQ data
case 6:
k=(p0+4*j)&mask;
t3=4*6553.6*cal_ygain/ampmax;
for(m=0; m<4; m++) {
t2=t3*timf1_short_int[k+m];
if(t2 <-0.22)t2=-0.22;
if(t2 >0.22)t2=0.22;
if(m > 1)t2-=0.5;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.25-t2);
}
m=4;
break;
// Two channels 32 bit IQ data
case 7:
k=(p0+4*j)&mask;
for(m=0; m<4; m++) {
t2=0.4F*cal_ygain*timf1_int[k+m]/ampmax;
if(t2 <-0.22)t2=-0.22F;
if(t2 >0.22)t2=0.22F;
if(m > 1)t2-=0.5F;
cal_graph[screen_width*(m+1)+n]=ytop+ysiz*(0.25F-t2);
}
m=4;
break;
default:
m=0;
}
if(n>0) {
lir_line(cal_graph[screen_width*(ui.rx_ad_channels+1)+n-1],
cal_graph[n-1],i,cal_graph[n],15);
if(kill_all_flag) goto calint_error_exit;
for(l=0; l<m; l++) {
color=(unsigned char)(10+3*(l&1));
if( (ui.rx_input_mode&IQ_DATA) == 0)color=14;
lir_line(cal_graph[screen_width*(ui.rx_ad_channels +1)+n-1],
cal_graph[(l+1)*screen_width+n-1],
i,cal_graph[(l+1)*screen_width+n],color);
if(kill_all_flag) goto calint_error_exit;
}
}
}
sprintf(s,"Scale x=%f y=%f S/N=%f dB PRF %.1f Hz ",
cal_xgain,cal_ygain,10*log10(noise_floor),
(float)ui.rx_ad_speed/cal_interval);
lir_text(1,INFOLINE+4,s);
}
}
}
}
}
skip:
;
timf1p_px=(timf1p_px+rawbytes)&timf1_bytemask;
lir_refresh_screen();
}
if(thread_command_flag[THREAD_CAL_INTERVAL]==THRFLAG_IDLE) {
thread_status_flag[THREAD_CAL_INTERVAL]=THRFLAG_IDLE;
while(thread_command_flag[THREAD_CAL_INTERVAL]==THRFLAG_IDLE) {
lir_await_event(EVENT_TIMF1);
timf1p_px=(timf1p_px+rawbytes)&timf1_bytemask;
}
if(thread_command_flag[THREAD_CAL_INTERVAL]==THRFLAG_ACTIVE)goto restart;
}
calint_error_exit:
;
thread_status_flag[THREAD_CAL_INTERVAL]=THRFLAG_RETURNED;
while(thread_command_flag[THREAD_CAL_INTERVAL] != THRFLAG_NOT_ACTIVE) {
lir_sleep(1000);
}
}