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LangstoneGUI.c
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LangstoneGUI.c
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#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <iio.h>
#include <unistd.h>
#include <wiringPi.h>
#include <stdio.h>
#include <string.h>
#include "Graphics.h"
#include "Touch.h"
#include "Mouse.h"
void setFreq(double fr);
void setFreqInc();
void setTx(int ptt);
void setMode(int mode);
void setVolume(int vol);
void setSquelch(int sql);
void setSSBMic(int mic);
void setFMMic(int mic);
void setBandBits(int b);
void processTouch();
void processMouse(int mbut);
void initGUI();
void sendFifo(char * s);
void initFifo();
void setPlutoRxFreq(long long rxfreq);
void setPlutoTxFreq(long long rxfreq);
void setHwRxFreq(double fr);
void setHwTxFreq(double fr);
void PlutoTxEnable(int txon);
void PlutoRxEnable(int rxon);
void detectHw();
int buttonTouched(int bx,int by);
void setKey(int k);
void displayMenu(void);
void displaySetting(int se);
void changeSetting(void);
void processGPIO(void);
void initGPIO(void);
int readConfig(void);
int writeConfig(void);
int satMode(void);
int txvtrMode(void);
void setMoni(int m);
void setFFTRef(int ref);
void initSDR(void);
void setFFTPipe(int cntl);
void waterfall(void);
void init_fft_Fifo();
void setRit(int rit);
void setInputMode(int n);
void gen_palette(char colours[][3],int num_grads);
double freq;
double freqInc=0.001;
#define numband 10
int band=2;
double bandFreq[numband] = {144.200,432.200,1296.200,2320.200,2400.100,3400.100,5760.100,10368.200,24048.200,10489.55};
double bandTxOffset[numband]={0.0,0.0,0.0,0.0,0.0,0.0,0.0,9936.0,23616.0,10069.5};
double bandRxOffset[numband]={0.0,0.0,0.0,0.0,0.0,0.0,0.0,9936.0,23616.0,10345.0};
int bandBits[numband]={0,1,2,3,4,5,6,7,8,9};
int bbits=0;
#define minFreq 0.0
#define maxFreq 99999.99999
#define minHwFreq 70.0
#define maxHwFreq 5999.99999
#define nummode 5
int mode=0;
char * modename[nummode]={"USB","LSB","CW ","CWN","FM "};
#define numSettings 6
int settingNo=0;
int inputMode=0;
char * settingText[numSettings]={"SSB Mic Gain = ","FM Mic Gain = ","Txvtr Rx Offset = ","Txvtr Tx Offset = ","Band Bits = ","FFT Ref = "};
//GUI Layout values X and Y coordinates for each group of buttons.
#define volButtonX 660
#define volButtonY 300
#define sqlButtonX 30
#define sqlButtonY 300
#define ritButtonX 670
#define ritButtonY 60
#define funcButtonsY 429
#define funcButtonsX 30
#define buttonHeight 50
#define buttonSpaceY 55
#define buttonWidth 100
#define buttonSpaceX 105
#define freqDisplayX 80
#define freqDisplayY 55
#define freqDisplayCharWidth 48
#define freqDisplayCharHeight 54
#define txX 600
#define txY 15
#define modeX 200
#define modeY 15
#define txvtrX 400
#define txvtrY 15
#define moniX 500
#define moniY 15
#define settingX 200
#define settingY 390
int ptt=0;
int ptts=0;
int moni=0;
int fifofd;
int sendDots=0;
int dotCount=0;
long long lastLOhz;
int lastKey=1;
int volume=20;
#define maxvol 100
int squelch=20;
#define maxsql 100
int rit=0;
#define minrit -1000
#define maxrit 1000
int SSBMic=50;
#define maxSSBMic 100
int FMMic=50;
#define maxFMMic 100
int tuneDigit=8;
#define maxTuneDigit 11
#define TXDELAY 10000 //100ms delay between setting Tx output bit and sending tx command to SDR
#define RXDELAY 10000 //100ms delay between sending rx command to SDR and setting Tx output bit low.
char mousePath[20];
char touchPath[20];
int mousePresent;
int touchPresent;
int plutoPresent;
#define pttPin 0 // Wiring Pi pin number. Physical pin is 11
#define keyPin 1 //Wiring Pi pin number. Physical pin is 12
#define txPin 29 //Wiring Pi pin number. Physical pin is 40
#define bandPin1 31 //Wiring Pi pin number. Physical pin is 28
#define bandPin2 24 //Wiring Pi pin number. Physical pin is 35
#define bandPin3 7 //Wiring Pi pin number. Physical pin is 7
#define bandPin4 6 //Wiring Pi pin number. Physical pin is 22
//robs Waterfall
float inbuf[2];
FILE *fftstream;
float buf[512][150];
int points=512;
int rows=150;
int FFTRef = -30;
int spectrum_rows=50;
unsigned char * palette;
int main(int argc, char* argv[])
{
clock_t lastClock;
fftstream=fopen("/tmp/langstonefft","r"); //Open FFT Stream from GNU Radio
fcntl(fileno(fftstream), F_SETFL, O_RDONLY | O_NONBLOCK);
lastClock=0;
readConfig();
detectHw();
initFifo();
init_fft_Fifo();
initScreen();
initGPIO();
if(touchPresent) initTouch(touchPath);
if(mousePresent) initMouse(mousePath);
initGUI();
initSDR();
// RGB Vals Black > Blue > Green > Yellow > Red 4 gradients //number of gradients is varaible
gen_palette((char [][3]){ {0,0,0},{0,0,255},{0,255,0},{255,255,0},{255,0,0}},4);
setFFTPipe(1); //Turn on FFT Stream from GNU RAdio
while(1)
{
processGPIO();
if(touchPresent)
{
if(getTouch()==1)
{
processTouch();
}
}
if(mousePresent)
{
int but=getMouse();
if(but>0)
{
processMouse(but);
}
}
if(sendDots==1)
{
dotCount=dotCount+1;
if(dotCount==1)
{
setKey(1);
}
if(dotCount==12)
{
setKey(0);
}
if(dotCount==25)
{
dotCount=0;
}
}
waterfall();
while(clock() < (lastClock + CLOCKS_PER_SEC/100)); //delay until the next iteration at 100 per second
lastClock=clock();
}
}
void gen_palette(char colours[][3], int num_grads){
//allocate some memory, size of palette
palette = malloc(sizeof(char)*256*3);
int diff[3];
float scale=256/(num_grads);
int pos=0;
for(int i=0;i<num_grads;i++){
//get differences in colours for current gradient
diff[0]=(colours[i+1][0]-colours[i][0])/(scale-1);
diff[1]=(colours[i+1][1]-colours[i][1])/(scale-1);
diff[2]=(colours[i+1][2]-colours[i][2])/(scale-1);
//fprintf(stdout,"diff 0:%i 1:%i 2:%i\n",diff[0],diff[1],diff[2]);
//create the palette built up of multiple gradients
for(int n=0;n<scale;n++){
palette[pos*3+2]=colours[i][0]+(n*diff[0]);
palette[pos*3+1]=colours[i][1]+(n*diff[1]);
palette[pos*3]=colours[i][2]+(n*diff[2]);
//fprintf(stdout,"n:%i r:%i g:%i b:%i\n",pos,palette[pos*3+2],palette[pos*3+1],palette[pos*3]);
pos++;
}
}
}
void waterfall()
{
int level,level2;
int ret;
int bwBarStart=3;
int bwBarEnd=34;
int centreShift=0;
//check if data avilable to read
ret = fread(&inbuf,sizeof(float),1,fftstream);
if(ret>0)
{
//shift buffer
for(int r=rows-1;r>0;r--)
{
for(int p=0;p<points;p++)
{
buf[p][r]=buf[p][r-1];
}
}
buf[0+points/2][0]=inbuf[0]; //use the read value
//Read in float values, shift centre and store in buffer 1st 'row'
for(int p=1;p<points;p++)
{
fread(&inbuf,sizeof(float),1,fftstream);
if(p<points/2)
{
buf[p+points/2][0]=inbuf[0];
}else
{
buf[p-points/2][0]=inbuf[0];
}
}
//RF level adjustment
int baselevel=FFTRef-50;
float scaling = 255.0/(float)(FFTRef-baselevel);
//draw waterfall
for(int r=0;r<rows;r++)
{
for(int p=0;p<points;p++)
{
//limit values displayed to range specified
if (buf[p][r]<baselevel) buf[p][r]=baselevel;
if (buf[p][r]>FFTRef) buf[p][r]=FFTRef;
//scale to 0-255
level = (buf[p][r]-baselevel)*scaling;
setPixel(p+140,206+r,palette[level*3+2],palette[level*3+1],palette[level*3]);
}
}
//clear spectrum area
for(int r=0;r<spectrum_rows+1;r++)
{
for(int p=0;p<points;p++)
{
setPixel(p+140,186-r,0,0,0);
}
}
//draw spectrum line
scaling = spectrum_rows/(float)(FFTRef-baselevel);
for(int p=0;p<points-1;p++)
{
//limit values displayed to range specified
if (buf[p][0]<baselevel) buf[p][0]=baselevel;
if (buf[p][0]>FFTRef) buf[p][0]=FFTRef;
//scale to display height
level = (buf[p][0]-baselevel)*scaling;
level2 = (buf[p+1][0]-baselevel)*scaling;
drawLine(p+140, 186-level, p+1+140, 186-level2,255,255,255);
}
//draw Bandwidth indicator
if (mode==0)
{
bwBarStart=3;
bwBarEnd=34;
centreShift=0;
}
if (mode==1)
{
bwBarStart=-34;
bwBarEnd=-3;
centreShift=0;
}
if (mode==2)
{
bwBarStart=3;
bwBarEnd=34;
centreShift=9;
}
if (mode==3)
{
bwBarStart=6;
bwBarEnd=12;
centreShift=9;
}
if (mode==4)
{
bwBarStart=-87;
bwBarEnd=87;
centreShift=0;
}
int p=points/2;
drawLine(p+140+bwBarStart, 186-spectrum_rows+5, p+140+bwBarStart, 186-spectrum_rows,255,140,0);
drawLine(p+140+bwBarStart, 186-spectrum_rows, p+140+bwBarEnd, 186-spectrum_rows,255,140,0);
drawLine(p+140+bwBarEnd, 186-spectrum_rows+5, p+140+bwBarEnd, 186-spectrum_rows,255,140,0);
//draw centre line (displayed frequency)
drawLine(p+140+centreShift, 186-10, p+140+centreShift, 186-spectrum_rows,255,0,0);
}
}
void setFFTRef(int ref)
{
FFTRef=ref;
}
void detectHw()
{
FILE * fp;
char * ln=NULL;
size_t len=0;
ssize_t rd;
int p;
char handler[2][10];
char * found;
p=0;
mousePresent=0;
touchPresent=0;
fp=fopen("/proc/bus/input/devices","r");
while ((rd=getline(&ln,&len,fp)!=-1))
{
if(ln[0]=='N') //name of device
{
if(strstr(ln,"FT5406")!=NULL) p=1; else p=0; //Found Raspberry Pi TouchScreen entry
}
if(ln[0]=='H') //handlers
{
if(strstr(ln,"mouse")!=NULL)
{
found=strstr(ln,"event");
strcpy(handler[p],found);
handler[p][6]=0;
if(p==0)
{
sprintf(mousePath,"/dev/input/%s",handler[0]);
mousePresent=1;
}
if(p==1)
{
sprintf(touchPath,"/dev/input/%s",handler[1]);
touchPresent=1;
}
}
}
}
fclose(fp);
if(ln) free(ln);
plutoPresent=1; //this will be reset by setPlutoFreq if Pluto is not present.
}
void setPlutoRxFreq(long long rxfreq)
{
struct iio_context *ctx;
struct iio_device *phy;
if(plutoPresent)
{
ctx = iio_create_context_from_uri("ip:192.168.2.1");
if(ctx==NULL)
{
plutoPresent=0;
gotoXY(220,120);
setForeColour(255,0,0);
textSize=2;
displayStr("PLUTO NOT DETECTED");
}
else
{
phy = iio_context_find_device(ctx, "ad9361-phy");
iio_channel_attr_write_longlong(iio_device_find_channel(phy, "altvoltage0", true),"frequency", rxfreq); //Rx LO Freq
}
iio_context_destroy(ctx);
}
}
void setPlutoTxFreq(long long txfreq)
{
struct iio_context *ctx;
struct iio_device *phy;
if(plutoPresent)
{
ctx = iio_create_context_from_uri("ip:192.168.2.1");
if(ctx==NULL)
{
plutoPresent=0;
gotoXY(220,120);
setForeColour(255,0,0);
textSize=2;
displayStr("PLUTO NOT DETECTED");
}
else
{
phy = iio_context_find_device(ctx, "ad9361-phy");
iio_channel_attr_write_longlong(iio_device_find_channel(phy, "altvoltage1", true),"frequency", txfreq); //Tx LO Freq
}
iio_context_destroy(ctx);
}
}
void PlutoTxEnable(int txon)
{
struct iio_context *ctx;
struct iio_device *phy;
if(plutoPresent)
{
ctx = iio_create_context_from_uri("ip:192.168.2.1");
phy = iio_context_find_device(ctx, "ad9361-phy");
if(txon==0)
{
iio_channel_attr_write_bool(iio_device_find_channel(phy, "altvoltage1", true),"powerdown", true); //turn off TX LO
}
else
{
iio_channel_attr_write_bool(iio_device_find_channel(phy, "altvoltage1", true),"powerdown", false); //turn on TX LO
}
iio_context_destroy(ctx);
}
}
void PlutoRxEnable(int rxon)
{
struct iio_context *ctx;
struct iio_device *phy;
if(plutoPresent)
{
ctx = iio_create_context_from_uri("ip:192.168.2.1");
phy = iio_context_find_device(ctx, "ad9361-phy");
if(rxon==0)
{
iio_channel_attr_write_bool(iio_device_find_channel(phy, "altvoltage0", true),"powerdown", true); //turn off RX LO
}
else
{
iio_channel_attr_write_bool(iio_device_find_channel(phy, "altvoltage0", true),"powerdown", false); //turn on RX LO
}
iio_context_destroy(ctx);
}
}
void initFifo()
{
if(access("/tmp/langstonein",F_OK)==-1) //does fifo exist already?
{
mkfifo("/tmp/langstonein", 0666);
}
}
void init_fft_Fifo()
{
if(access("/tmp/langstonefft",F_OK)==-1) //does fifo exist already?
{
mkfifo("/tmp/langstonefft", 0666);
}
}
void sendFifo(char * s)
{
char fs[50];
strcpy(fs,s);
strcat(fs,"\n");
fifofd=open("/tmp/langstonein",O_WRONLY);
write(fifofd,fs,strlen(fs));
close(fifofd);
delay(5);
}
void initGPIO(void)
{
wiringPiSetup();
pinMode(pttPin,INPUT);
pinMode(keyPin,INPUT);
pinMode(txPin,OUTPUT);
pinMode(bandPin1,OUTPUT);
pinMode(bandPin2,OUTPUT);
pinMode(bandPin3,OUTPUT);
pinMode(bandPin4,OUTPUT);
digitalWrite(txPin,LOW);
digitalWrite(bandPin1,LOW);
digitalWrite(bandPin2,LOW);
digitalWrite(bandPin3,LOW);
digitalWrite(bandPin4,LOW);
lastKey=1;
}
void processGPIO(void)
{
int v=digitalRead(pttPin);
if(v==0)
{
if(ptt==0)
{
ptt=1;
setTx(ptt|ptts);
}
}
else
{
if(ptt==1)
{
ptt=0;
setTx(ptt|ptts);
}
}
v=digitalRead(keyPin);
if(v!=lastKey)
{
setKey(!v);
lastKey=v;
}
}
void sqlButton(int show)
{
char sqlStr[5];
gotoXY(sqlButtonX,sqlButtonY);
if(show==1)
{
setForeColour(0,255,0);
}
else
{
setForeColour(0,0,0);
}
displayButton("SQL");
textSize=2;
gotoXY(sqlButtonX+30,sqlButtonY-25);
displayStr(" ");
gotoXY(sqlButtonX+30,sqlButtonY-25);
sprintf(sqlStr,"%d",squelch);
displayStr(sqlStr);
}
void ritButton(int show)
{
char ritStr[5];
int to;
if(show==1)
{
setForeColour(0,255,0);
}
else
{
setForeColour(0,0,0);
gotoXY(ritButtonX,ritButtonY+buttonSpaceY);
displayButton("Zero");
}
gotoXY(ritButtonX,ritButtonY);
displayButton("RIT");
textSize=2;
to=0;
if(abs(rit)>0) to=8;
if(abs(rit)>9) to=16;
if(abs(rit)>99) to=24;
if(abs(rit)>999) to=32;
gotoXY(ritButtonX,ritButtonY-25);
displayStr(" ");
gotoXY(ritButtonX+38-to,ritButtonY-25);
if (rit==0)
{
sprintf(ritStr,"0");
}
else
{
sprintf(ritStr,"%+d",rit);
}
displayStr(ritStr);
}
void initGUI()
{
clearScreen();
// Volume Button
gotoXY(volButtonX,volButtonY);
setForeColour(0,255,0);
displayButton("Vol");
//bottom row of buttons
displayMenu();
freq=bandFreq[band];
bbits=bandBits[band];
setBandBits(bbits);
if(mode==4)
{
sqlButton(1);
}
else
{
sqlButton(0);
}
//clear waterfall buffer.
//shift buffer
for(int r=0;r<rows;r++){
for(int p=0;p<points;p++){
buf[p][r]=-100;
}
}
}
void initSDR(void)
{
setMode(mode);
setVolume(volume);
setSquelch(squelch);
setRit(0);
setSSBMic(SSBMic);
setFMMic(FMMic);
setFreqInc();
lastLOhz=0;
setFreq(freq);
}
void displayMenu()
{
gotoXY(funcButtonsX,funcButtonsY);
setForeColour(0,255,0);
displayButton("BAND");
displayButton("MODE");
displayButton(" ");
displayButton("SET");
displayButton(" ");
displayButton("DOTS");
displayButton("PTT");
}
void processMouse(int mbut)
{
if(mbut==128) //scroll whell turned
{
if(inputMode==0)
{
freq=freq+(mouseScroll*freqInc);
mouseScroll=0;
if(freq < minFreq) freq=minFreq;
if(freq > maxFreq) freq=maxFreq;
setFreq(freq);
return;
}
if(inputMode==1)
{
changeSetting();
return;
}
if(inputMode==2)
{
volume=volume+mouseScroll;
mouseScroll=0;
if(volume < 0) volume=0;
if(volume > maxvol) volume=maxvol;
setVolume(volume);
return;
}
if(inputMode==3)
{
squelch=squelch+mouseScroll;
mouseScroll=0;
if(squelch < 0) squelch=0;
if(squelch > maxsql) squelch=maxsql;
setSquelch(squelch);
return;
}
if(inputMode==4)
{
rit=rit+mouseScroll*10;
mouseScroll=0;
if(rit < minrit) rit=minrit;
if(rit > maxrit) rit=maxrit;
setRit(rit);
return;
}
}
if(mbut==1+128) //Left Mouse Button down
{
tuneDigit=tuneDigit-1;
if(tuneDigit<0) tuneDigit=0;
if(tuneDigit==5) tuneDigit=4;
if(tuneDigit==9) tuneDigit=8;
setFreqInc();
setFreq(freq);
}
if(mbut==2+128) //Right Mouse Button down
{
tuneDigit=tuneDigit+1;
if(tuneDigit > maxTuneDigit) tuneDigit=maxTuneDigit;
if(tuneDigit==5) tuneDigit=6;
if(tuneDigit==9) tuneDigit=10;
setFreqInc();
setFreq(freq);
}
if(mbut==4+128) //Extra Button down
{
}
if(mbut==5+128) //Side Button down
{
}
}
void setFreqInc()
{
if(tuneDigit==0) freqInc=10000.0;
if(tuneDigit==1) freqInc=1000.0;
if(tuneDigit==2) freqInc=100.0;
if(tuneDigit==3) freqInc=10.0;
if(tuneDigit==4) freqInc=1.0;
if(tuneDigit==5) tuneDigit=6;
if(tuneDigit==6) freqInc=0.1;
if(tuneDigit==7) freqInc=0.01;
if(tuneDigit==8) freqInc=0.001;
if(tuneDigit==9) tuneDigit=10;
if(tuneDigit==10) freqInc=0.0001;
if(tuneDigit==11) freqInc=0.00001;
}
void processTouch()
{
// Volume Button
if(buttonTouched(volButtonX,volButtonY)) //Vol
{
if(inputMode==2)
{
setInputMode(0);
}
else
{
setInputMode(2);
}
return;
}
// Squelch Button
if(buttonTouched(sqlButtonX,sqlButtonY)) //sql
{
if(mode==4)
{
if(inputMode==3)
{
setInputMode(0);
}
else
{
setInputMode(3);
}
return;
}
}
//RIT Button
if(buttonTouched(ritButtonX,ritButtonY)) //rit
{
if(mode!=4)
{
if(inputMode==4)
{
setInputMode(0);
}
else
{
setInputMode(4);
}
return;
}
}
//RIT Zero Button
if(buttonTouched(ritButtonX,ritButtonY+buttonSpaceY)) //rit zero
{
setRit(0);
setInputMode(0);
}
//Function Buttons
if(buttonTouched(funcButtonsX,funcButtonsY)) //Button 1 = BAND or MENU
{
if(inputMode==0)
{
bandFreq[band]=freq;
band=band+1;
if(band==numband) band=0;
freq=bandFreq[band];
setFreq(freq);
bbits=bandBits[band];
setBandBits(bbits);
writeConfig(); //save all settings when changing band.
return;
}
else
{
setInputMode(0);
return;
}
}
if(buttonTouched(funcButtonsX+buttonSpaceX,funcButtonsY)) //Button 2 = MODE or Blank
{
if(inputMode==0)
{
mode=mode+1;
if(mode==nummode) mode=0;
setMode(mode);
return;
}
else
{
setInputMode(0);
return;
}
}
if(buttonTouched(funcButtonsX+buttonSpaceX*2,funcButtonsY)) // Button 3 =Blank or NEXT
{
if(inputMode==0)
{
return;
}
else if(inputMode==1)
{
settingNo=settingNo+1;
if(settingNo==numSettings) settingNo=0;
displaySetting(settingNo);
return;
}
else
{
setInputMode(0);
}
}
if(buttonTouched(funcButtonsX+buttonSpaceX*3,funcButtonsY)) // Button4 =SET or Blank
{
if(inputMode==0)
{
setInputMode(1);
return;
}
else
{
setInputMode(0);
return;
}
}
if(buttonTouched(funcButtonsX+buttonSpaceX*4,funcButtonsY)) //Button 5 =MONI (only allowed in Sat mode) or PREV
{
if(inputMode==0)
{
if(satMode()==1)
{
if(moni==1) setMoni(0); else setMoni(1);
}
return;
}
else if (inputMode==1)
{
settingNo=settingNo-1;
if(settingNo<0) settingNo=numSettings-1;
displaySetting(settingNo);
return;
}