//========================================================================
/* initialization and termination */
+void
+reset_meters(void) {
+ if (uni.meter.flag) { // reset metering completely
+ int i, k;
+ for (i = 0; i < RXMETERPTS; i++)
+ for (k = 0; k < MAXRX; k++)
+ uni.meter.rx.val[k][i] = uni.meter.rx.avg[k][i] = -200.0;
+ for (i = 0; i < TXMETERPTS; i++)
+ uni.meter.tx.val[i] = uni.meter.tx.avg[i] = -200.0;
+ }
+}
+
+void
+reset_spectrum(void) {
+ if (uni.spec.flag)
+ reinit_spectrum(&uni.spec);
+}
+
+void
+reset_counters(void) {
+ int k;
+ for (k = 0; k < uni.multirx.nrx; k++) rx[k].tick = 0;
+ tx.tick = 0;
+}
+
+//========================================================================
+
/* global and general info,
not specifically attached to
tx, rx, or scheduling */
PRIVATE void
setup_all(void) {
-
+
uni.samplerate = loc.def.rate;
uni.buflen = loc.def.size;
uni.mode.sdr = loc.def.mode;
uni.mode.trx = RX;
-
- if (uni.meter.flag) {
- uni.meter.chan.path = loc.path.meter;
- uni.meter.chan.size = loc.mult.ring * sizeof(REAL);
- uni.meter.val = -200.0;
- uni.meter.chan.c = openChan(uni.meter.chan.path, uni.meter.chan.size);
- }
-
+
uni.wisdom.path = loc.path.wisdom;
uni.wisdom.bits = FFTW_OUT_OF_PLACE | FFTW_ESTIMATE;
{
fclose(f);
}
}
+
+ if (uni.meter.flag) {
+ uni.meter.rx.type = SIGNAL_STRENGTH;
+ uni.meter.tx.type = SIGNAL_STRENGTH;
+ reset_meters();
+ }
+
+ uni.spec.rxk = 0;
+ uni.spec.buflen = uni.buflen;
+ uni.spec.scale = SPEC_PWR;
+ uni.spec.type = SPEC_POST_FILT;
+ uni.spec.size = loc.def.spec;
+ uni.spec.planbits = uni.wisdom.bits;
+ init_spectrum(&uni.spec);
+
+ // set which receiver is listening to commands
+ uni.multirx.lis = 0;
+ uni.multirx.nrx = loc.def.nrx;
+
+ // set mixing of input from aux ports
+ uni.mix.rx.flag = uni.mix.tx.flag = FALSE;
+ uni.mix.rx.gain = uni.mix.tx.gain = 1.0;
+
+ uni.cpdlen = loc.def.comp;
uni.tick = 0;
}
/* purely rx */
PRIVATE void
-setup_rx(void) {
-
+setup_rx(int k) {
+
/* conditioning */
- rx.iqfix = newCorrectIQ(0.0, 1.0);
- rx.filt.coef = newFIR_Bandpass_COMPLEX(-4800.0,
- 4800.0,
- uni.samplerate,
- uni.buflen + 1);
- rx.filt.ovsv = newFiltOvSv(FIRcoef(rx.filt.coef),
- FIRsize(rx.filt.coef),
- uni.wisdom.bits);
- normalize_vec_COMPLEX(rx.filt.ovsv->zfvec,
- rx.filt.ovsv->fftlen);
+ rx[k].iqfix = newCorrectIQ(0.0, 1.0);
+ rx[k].filt.coef = newFIR_Bandpass_COMPLEX(-4800.0,
+ 4800.0,
+ uni.samplerate,
+ uni.buflen + 1);
+ rx[k].filt.ovsv = newFiltOvSv(FIRcoef(rx[k].filt.coef),
+ FIRsize(rx[k].filt.coef),
+ uni.wisdom.bits);
+ normalize_vec_COMPLEX(rx[k].filt.ovsv->zfvec,
+ rx[k].filt.ovsv->fftlen);
// hack for EQ
- rx.filt.save = newvec_COMPLEX(rx.filt.ovsv->fftlen, "RX filter cache");
- memcpy((char *) rx.filt.save,
- (char *) rx.filt.ovsv->zfvec,
- rx.filt.ovsv->fftlen * sizeof(COMPLEX));
+ rx[k].filt.save = newvec_COMPLEX(rx[k].filt.ovsv->fftlen, "RX filter cache");
+ memcpy((char *) rx[k].filt.save,
+ (char *) rx[k].filt.ovsv->zfvec,
+ rx[k].filt.ovsv->fftlen * sizeof(COMPLEX));
/* buffers */
/* note we overload the internal filter buffers
we just created */
- rx.buf.i = newCXB(FiltOvSv_fetchsize(rx.filt.ovsv),
- FiltOvSv_fetchpoint(rx.filt.ovsv),
- "init rx.buf.i");
- rx.buf.o = newCXB(FiltOvSv_storesize(rx.filt.ovsv),
- FiltOvSv_storepoint(rx.filt.ovsv),
- "init rx.buf.o");
+ rx[k].buf.i = newCXB(FiltOvSv_fetchsize(rx[k].filt.ovsv),
+ FiltOvSv_fetchpoint(rx[k].filt.ovsv),
+ "init rx[k].buf.i");
+ rx[k].buf.o = newCXB(FiltOvSv_storesize(rx[k].filt.ovsv),
+ FiltOvSv_storepoint(rx[k].filt.ovsv),
+ "init rx[k].buf.o");
/* conversion */
- rx.osc.freq = -11025.0;
- rx.osc.phase = 0.0;
- rx.osc.gen = newOSC(uni.buflen,
- ComplexTone,
- rx.osc.freq,
- rx.osc.phase,
- uni.samplerate,
- "SDR RX Oscillator");
-
- rx.agc.gen = newDigitalAgc(agcMED, // Mode
- 7, // Hang
- 7, // Size
- 48, // Ramp
- 3, // Over
- 3, // Rcov
- CXBsize(rx.buf.o), // BufSize
- 100.0, // MaxGain
- 0.707, // Limit
- 1.0, // CurGain
- CXBbase(rx.buf.o));
- rx.agc.flag = TRUE;
+ rx[k].osc.freq = -11025.0;
+ rx[k].osc.phase = 0.0;
+ rx[k].osc.gen = newOSC(uni.buflen,
+ ComplexTone,
+ rx[k].osc.freq,
+ rx[k].osc.phase,
+ uni.samplerate,
+ "SDR RX Oscillator");
+
+ rx[k].agc.gen = newDigitalAgc(agcSLOW, // Mode
+ 7, // Hang
+ 48, // Ramp
+ 3, // Over
+ 3, // Rcov
+ CXBsize(rx[k].buf.o), // BufSize
+ 2500.0, // MaxGain
+ 0.707, // Limit
+ 1.0, // CurGain
+ CXBbase(rx[k].buf.o));
+ rx[k].agc.flag = TRUE;
/* demods */
- rx.am.gen = newAMD(48000.0, // REAL samprate
- 0.0, // REAL f_initial
- -500.0, // REAL f_lobound,
- 500.0, // REAL f_hibound,
- 400.0, // REAL f_bandwid,
- CXBsize(rx.buf.o), // int size,
- CXBbase(rx.buf.o), // COMPLEX *ivec,
- CXBbase(rx.buf.o), // COMPLEX *ovec,
- AMdet, // AM Mode AMdet == rectifier,
+ rx[k].am.gen = newAMD(48000.0, // REAL samprate
+ 0.0, // REAL f_initial
+ -500.0, // REAL f_lobound,
+ 500.0, // REAL f_hibound,
+ 400.0, // REAL f_bandwid,
+ CXBsize(rx[k].buf.o), // int size,
+ CXBbase(rx[k].buf.o), // COMPLEX *ivec,
+ CXBbase(rx[k].buf.o), // COMPLEX *ovec,
+ AMdet, // AM Mode AMdet == rectifier,
// SAMdet == synchronous detector
- "AM detector blew"); // char *tag
- rx.fm.gen = newFMD(48000, // REAL samprate
- 0.0, // REAL f_initial
- -6000.0, // REAL f_lobound
- 6000.0, // REAL f_hibound
- 10000.0, // REAL f_bandwid
- CXBsize(rx.buf.o), // int size
- CXBbase(rx.buf.o), // COMPLEX *ivec
- CXBbase(rx.buf.o), // COMPLEX *ovec
- "New FM Demod structure"); // char *error message;
+ "AM detector blew"); // char *tag
+ rx[k].fm.gen = newFMD(48000, // REAL samprate
+ 0.0, // REAL f_initial
+ -6000.0, // REAL f_lobound
+ 6000.0, // REAL f_hibound
+ 10000.0, // REAL f_bandwid
+ CXBsize(rx[k].buf.o), // int size
+ CXBbase(rx[k].buf.o), // COMPLEX *ivec
+ CXBbase(rx[k].buf.o), // COMPLEX *ovec
+ "New FM Demod structure"); // char *error message;
/* noise reduction */
- rx.anf.gen = new_lmsr(rx.buf.o, // CXB signal,
- 64, // int delay,
- 0.01, // REAL adaptation_rate,
- 0.00001, // REAL leakage,
- 45, // int adaptive_filter_size,
- LMADF_INTERFERENCE);
- rx.anf.flag = FALSE;
- rx.anr.gen = new_lmsr(rx.buf.o, // CXB signal,
- 64, // int delay,
- 0.01, // REAL adaptation_rate,
- 0.00001, // REAL leakage,
- 45, // int adaptive_filter_size,
- LMADF_NOISE);
- rx.anr.flag = FALSE;
-
- rx.nb.thresh = 3.3;
- rx.nb.gen = new_noiseblanker(rx.buf.i, rx.nb.thresh);
- rx.nb.flag = FALSE;
-
- rx.nb_sdrom.thresh = 2.5;
- rx.nb_sdrom.gen = new_noiseblanker(rx.buf.i, rx.nb_sdrom.thresh);
- rx.nb_sdrom.flag = FALSE;
-
- rx.spot.gen = newSpotToneGen(-12.0, // gain
- 700.0, // freq
- 5.0, // ms rise
- 5.0, // ms fall
- uni.buflen,
- uni.samplerate);
-
- rx.scl.pre.val = 1.0;
- rx.scl.pre.flag = FALSE;
- rx.scl.post.val = 1.0;
- rx.scl.post.flag = FALSE;
-
- memset((char *) &rx.squelch, 0, sizeof(rx.squelch));
- rx.squelch.thresh = -30.0;
- rx.squelch.power = 0.0;
- rx.squelch.flag = rx.squelch.running = rx.squelch.set = FALSE;
- rx.squelch.num = (int) (0.0395 * uni.samplerate + 0.5);
-
- rx.mode = uni.mode.sdr;
- rx.bin.flag = FALSE;
-
- rx.tick = 0;
+ rx[k].anf.gen = new_lmsr(rx[k].buf.o, // CXB signal,
+ 64, // int delay,
+ 0.01, // REAL adaptation_rate,
+ 0.00001, // REAL leakage,
+ 45, // int adaptive_filter_size,
+ LMADF_INTERFERENCE);
+ rx[k].anf.flag = FALSE;
+ rx[k].anr.gen = new_lmsr(rx[k].buf.o, // CXB signal,
+ 64, // int delay,
+ 0.01, // REAL adaptation_rate,
+ 0.00001, // REAL leakage,
+ 45, // int adaptive_filter_size,
+ LMADF_NOISE);
+ rx[k].anr.flag = FALSE;
+
+ rx[k].nb.thresh = 3.3;
+ rx[k].nb.gen = new_noiseblanker(rx[k].buf.i, rx[k].nb.thresh);
+ rx[k].nb.flag = FALSE;
+
+ rx[k].nb_sdrom.thresh = 2.5;
+ rx[k].nb_sdrom.gen = new_noiseblanker(rx[k].buf.i, rx[k].nb_sdrom.thresh);
+ rx[k].nb_sdrom.flag = FALSE;
+
+ rx[k].spot.gen = newSpotToneGen(-12.0, // gain
+ 700.0, // freq
+ 5.0, // ms rise
+ 5.0, // ms fall
+ uni.buflen,
+ uni.samplerate);
+
+ rx[k].scl.pre.val = 1.0;
+ rx[k].scl.pre.flag = FALSE;
+ rx[k].scl.post.val = 1.0;
+ rx[k].scl.post.flag = FALSE;
+
+ memset((char *) &rx[k].squelch, 0, sizeof(rx[k].squelch));
+ rx[k].squelch.thresh = -30.0;
+ rx[k].squelch.power = 0.0;
+ rx[k].squelch.flag = rx[k].squelch.running = rx[k].squelch.set = FALSE;
+ rx[k].squelch.num = uni.buflen - 10;
+
+ rx[k].cpd.gen = newWSCompander(uni.cpdlen,
+ 0.0,
+ rx[k].buf.o);
+ rx[k].cpd.flag = FALSE;
+
+ rx[k].mode = uni.mode.sdr;
+ rx[k].bin.flag = FALSE;
+
+ {
+ REAL pos = 0.5, // 0 <= pos <= 1, left->right
+ theta = (1.0 - pos) * M_PI / 2.0;
+ rx[k].azim = Cmplx(cos(theta), sin(theta));
+ }
+
+ rx[k].tick = 0;
}
/* purely tx */
FiltOvSv_storepoint(tx.filt.ovsv),
"init tx.buf.o");
+ tx.dcb.flag = FALSE;
+ tx.dcb.gen = newDCBlocker(DCB_MED, tx.buf.i);
+
/* conversion */
tx.osc.freq = 0.0;
tx.osc.phase = 0.0;
uni.samplerate,
"SDR TX Oscillator");
+
tx.agc.gen = newDigitalAgc(agcFAST, // Mode
3, // Hang
- 3, // Size
+ 48, // Ramp
3, // Over
3, // Rcov
- 48, // Ramp
CXBsize(tx.buf.o), // BufSize
1.0, // MaxGain
0.900, // Limit
CXBbase(tx.buf.o));
tx.agc.flag = TRUE;
- tx.spr.gen = newSpeechProc(0.4, 10.0, CXBbase(tx.buf.i), CXBsize(tx.buf.i));
+ tx.spr.gen = newSpeechProc(0.4, 10.0, CXBbase(tx.buf.o), CXBsize(tx.buf.o));
tx.spr.flag = FALSE;
+ tx.cpd.gen = newWSCompander(uni.cpdlen,
+ 0.0,
+ tx.buf.o);
+ tx.cpd.flag = FALSE;
+
tx.scl.dc = cxzero;
tx.scl.pre.val = 1.0;
tx.scl.pre.flag = FALSE;
void
setup_workspace(void) {
- setup_all(), setup_rx(), setup_tx();
+ int k;
+
+ setup_all();
+
+ for (k = 0; k < uni.multirx.nrx; k++) {
+ setup_rx(k);
+ uni.multirx.act[k] = FALSE;
+ }
+ uni.multirx.act[0] = TRUE;
+ uni.multirx.nac = 1;
+
+ setup_tx();
}
void
destroy_workspace(void) {
+ int k;
/* TX */
delSpeechProc(tx.spr.gen);
delDigitalAgc(tx.agc.gen);
delOSC(tx.osc.gen);
+ delDCBlocker(tx.dcb.gen);
delvec_COMPLEX(tx.filt.save);
delFiltOvSv(tx.filt.ovsv);
delFIR_Bandpass_COMPLEX(tx.filt.coef);
delCXB(tx.buf.i);
/* RX */
- delSpotToneGen(rx.spot.gen);
- delDigitalAgc(rx.agc.gen);
- del_nb(rx.nb_sdrom.gen);
- del_nb(rx.nb.gen);
- del_lmsr(rx.anf.gen);
- del_lmsr(rx.anr.gen);
- delAMD(rx.am.gen);
- delFMD(rx.fm.gen);
- delOSC(rx.osc.gen);
- delvec_COMPLEX(rx.filt.save);
- delFiltOvSv(rx.filt.ovsv);
- delFIR_Bandpass_COMPLEX(rx.filt.coef);
- delCorrectIQ(rx.iqfix);
- delCXB(rx.buf.o);
- delCXB(rx.buf.i);
-
+ for (k = 0; k < uni.multirx.nrx; k++) {
+ delSpotToneGen(rx[k].spot.gen);
+ delDigitalAgc(rx[k].agc.gen);
+ del_nb(rx[k].nb_sdrom.gen);
+ del_nb(rx[k].nb.gen);
+ del_lmsr(rx[k].anf.gen);
+ del_lmsr(rx[k].anr.gen);
+ delAMD(rx[k].am.gen);
+ delFMD(rx[k].fm.gen);
+ delOSC(rx[k].osc.gen);
+ delvec_COMPLEX(rx[k].filt.save);
+ delFiltOvSv(rx[k].filt.ovsv);
+ delFIR_Bandpass_COMPLEX(rx[k].filt.coef);
+ delCorrectIQ(rx[k].iqfix);
+ delCXB(rx[k].buf.o);
+ delCXB(rx[k].buf.i);
+ }
+
/* all */
- if (uni.meter.flag)
- closeChan(uni.meter.chan.c);
+ finish_spectrum(&uni.spec);
}
//////////////////////////////////////////////////////////////////////////
//========================================================================
/* all */
-/* tap off S-meter from some buf */
+// unfortunate duplication here, due to
+// multirx vs monotx
PRIVATE void
-do_meter(COMPLEX *vec, int len) {
- int i;
+do_rx_meter(int k, CXB buf, int tap) {
+ COMPLEX *vec = CXBbase(buf);
+ int i, len = CXBhave(buf);
- uni.meter.val = 0;
-
- switch (uni.meter.type) {
- case AVG_SIGNAL_STRENGTH:
+ uni.meter.rx.val[k][tap] = 0;
+
+ switch (uni.meter.rx.type) {
+ case SIGNAL_STRENGTH:
for (i = 0; i < len; i++)
- uni.meter.val += Csqrmag(vec[i]);
- uni.meter.val =
- uni.meter.avgval = 0.9 * uni.meter.avgval + log10(uni.meter.val + 1e-20);
+ uni.meter.rx.val[k][tap] += Csqrmag(vec[i]);
+ if (tap == 3) rx[k].norm = uni.meter.rx.val[k][tap] / len;
+ uni.meter.rx.avg[k][tap] =
+ uni.meter.rx.val[k][tap] =
+ 10.0 * log10(uni.meter.rx.val[k][tap] + 1e-20);
break;
- case SIGNAL_STRENGTH:
+ case AVG_SIGNAL_STRENGTH:
for (i = 0; i < len; i++)
- uni.meter.val += Csqrmag(vec[i]);
- uni.meter.avgval = uni.meter.val = 10.0 * log10(uni.meter.val + 1e-20);
+ uni.meter.rx.val[k][tap] += Csqrmag(vec[i]);
+ uni.meter.rx.val[k][tap] =
+ uni.meter.rx.avg[k][tap] =
+ 0.9 * uni.meter.rx.avg[k][tap] + log10(uni.meter.rx.val[k][tap] + 1e-20);
break;
case ADC_REAL:
for(i = 0; i < len; i++)
- uni.meter.val = max(fabs(vec[i].re), uni.meter.val);
- uni.meter.val = 20.0 * log10(uni.meter.val + 1e-10);
+ uni.meter.rx.val[k][tap] = max(fabs(vec[i].re), uni.meter.rx.val[k][tap]);
+ uni.meter.rx.val[k][tap] = 20.0 * log10(uni.meter.rx.val[k][tap] + 1e-10);
break;
case ADC_IMAG:
for(i = 0; i < len; i++)
- uni.meter.val = max(fabs(vec[i].im), uni.meter.val);
- uni.meter.val = 20.0 * log10(uni.meter.val + 1e-10);
+ uni.meter.rx.val[k][tap] = max(fabs(vec[i].im), uni.meter.rx.val[k][tap]);
+ uni.meter.rx.val[k][tap] = 20.0 * log10(uni.meter.rx.val[k][tap] + 1e-10);
+ break;
+ case AGC_GAIN:
+ uni.meter.rx.val[k][tap] = 20.0 * log10(rx[k].agc.gen->gain.now + 1e-80);
+ break;
+ default:
+ break;
+ }
+}
+
+PRIVATE void
+do_tx_meter(CXB buf, int tap) {
+ COMPLEX *vec = CXBbase(buf);
+ int i, len = CXBhave(buf);
+
+ uni.meter.tx.val[tap] = 0;
+
+ switch (uni.meter.tx.type) {
+ case AVG_SIGNAL_STRENGTH:
+ for (i = 0; i < len; i++)
+ uni.meter.tx.val[tap] += Csqrmag(vec[i]);
+ uni.meter.tx.val[tap] =
+ uni.meter.tx.avg[tap] =
+ 0.9 * uni.meter.tx.avg[tap] + log10(uni.meter.tx.val[tap] + 1e-20);
+ break;
+ case SIGNAL_STRENGTH:
+ for (i = 0; i < len; i++)
+ uni.meter.tx.val[tap] += Csqrmag(vec[i]);
+ uni.meter.tx.avg[tap] =
+ uni.meter.tx.val[tap] =
+ 10.0 * log10(uni.meter.tx.val[tap] + 1e-20);
+ break;
+ case ALC:
+ {
+ REAL tmp = 20.0 * log10(tx.agc.gen->gain.now);
+ uni.meter.tx.val[tap] =
+ tmp < 0.0 ? tmp : min(20.0, 20.0 * log10(tx.agc.gen->gain.raw));
+ }
+ break;
+ case PWR:
+ for(i = 0, uni.meter.tx.val[tap] = 1e-20; i < CXBhave(tx.buf.o); i++)
+ uni.meter.tx.val[tap] += Csqrmag(CXBdata(tx.buf.o, i));
+ uni.meter.tx.val[tap] /= 2048.0;
+ break;
+ case PKPWR:
+ for(i = 0, uni.meter.tx.val[tap] = 1e-20; i < CXBhave(tx.buf.o); i++)
+ uni.meter.tx.val[tap] = max(uni.meter.tx.val[tap],
+ Csqrmag(CXBdata(tx.buf.o,i)));
break;
default:
break;
}
+}
+
+PRIVATE void
+do_rx_spectrum(int k, CXB buf, int type) {
+ if (uni.spec.flag && k == uni.spec.rxk && type == uni.spec.type) {
+ memcpy((char *) &CXBdata(uni.spec.accum, uni.spec.fill),
+ (char *) CXBbase(buf),
+ CXBsize(buf) * sizeof(COMPLEX));
+ uni.spec.fill = (uni.spec.fill + CXBsize(buf)) % uni.spec.size;
+ }
+}
- putChan_nowait(uni.meter.chan.c,
- (char *) &uni.meter.val,
- sizeof(uni.meter.val));
+PRIVATE void
+do_tx_spectrum(CXB buf) {
+ memcpy((char *) &CXBdata(uni.spec.accum, uni.spec.fill),
+ (char *) CXBbase(buf),
+ CXBsize(buf) * sizeof(COMPLEX));
+ uni.spec.fill = (uni.spec.fill + CXBsize(buf)) % uni.spec.size;
}
//========================================================================
/* RX processing */
PRIVATE BOOLEAN
-should_do_rx_squelch(void) {
- if (rx.squelch.flag) {
- int i, n = CXBhave(rx.buf.o);
- rx.squelch.power = 0.0;
+should_do_rx_squelch(int k) {
+ if (rx[k].squelch.flag) {
+ int i, n = CXBhave(rx[k].buf.o);
+ rx[k].squelch.power = 0.0;
+
for (i = 0; i < n; i++)
- rx.squelch.power += Csqrmag(CXBdata(rx.buf.o, i));
- return rx.squelch.thresh > 10.0 * log10(rx.squelch.power);
+ rx[k].squelch.power += Csqrmag(CXBdata(rx[k].buf.o, i));
+
+ return
+ 10.0 * log10(rx[k].squelch.power) < rx[k].squelch.thresh;
+
} else
- return rx.squelch.set = FALSE;
+ return rx[k].squelch.set = FALSE;
}
// apply squelch
// slew into silence first time
PRIVATE void
-do_squelch(void) {
- rx.squelch.set = TRUE;
- if (!rx.squelch.running) {
- int i, m = rx.squelch.num, n = CXBhave(rx.buf.o) - m;
+do_squelch(int k) {
+ rx[k].squelch.set = TRUE;
+
+ if (!rx[k].squelch.running) {
+ int i,
+ m = rx[k].squelch.num,
+ n = CXBhave(rx[k].buf.o) - m;
+
for (i = 0; i < m; i++)
- CXBdata(rx.buf.o, i) = Cscl(CXBdata(rx.buf.o, i), 1.0 - (REAL) i / m);
- memset((void *) (CXBbase(rx.buf.o) + m), 0, n * sizeof(COMPLEX));
- rx.squelch.running = TRUE;
+ CXBdata(rx[k].buf.o, i) =
+ Cscl(CXBdata(rx[k].buf.o, i), 1.0 - (REAL) i / m);
+
+ memset((void *) (CXBbase(rx[k].buf.o) + m),
+ 0,
+ n * sizeof(COMPLEX));
+ rx[k].squelch.running = TRUE;
+
} else
- memset((void *) CXBbase(rx.buf.o), 0, CXBhave(rx.buf.o) * sizeof(COMPLEX));
+ memset((void *) CXBbase(rx[k].buf.o),
+ 0,
+ CXBhave(rx[k].buf.o) * sizeof(COMPLEX));
}
// lift squelch
// slew out from silence to full scale
PRIVATE void
-no_squelch(void) {
- if (rx.squelch.running) {
- int i, m = rx.squelch.num;
+no_squelch(int k) {
+ if (rx[k].squelch.running) {
+ int i, m = rx[k].squelch.num;
+
for (i = 0; i < m; i++)
- CXBdata(rx.buf.o, i) = Cscl(CXBdata(rx.buf.o, i), (REAL) i / m);
- rx.squelch.running = FALSE;
+ CXBdata(rx[k].buf.o, i) =
+ Cscl(CXBdata(rx[k].buf.o, i), (REAL) i / m);
+
+ rx[k].squelch.running = FALSE;
}
}
/* pre-condition for (nearly) all RX modes */
PRIVATE void
-do_rx_pre(void) {
- int i, n = min(CXBhave(rx.buf.i), uni.buflen);
-
- //
- // do shrinkage here
- //
+do_rx_pre(int k) {
+ int i, n = min(CXBhave(rx[k].buf.i), uni.buflen);
- if (rx.scl.pre.flag)
+ if (rx[k].scl.pre.flag)
for (i = 0; i < n; i++)
- CXBdata(rx.buf.i, i) = Cscl(CXBdata(rx.buf.i, i),
- rx.scl.pre.val);
+ CXBdata(rx[k].buf.i, i) = Cscl(CXBdata(rx[k].buf.i, i),
+ rx[k].scl.pre.val);
- if (rx.nb.flag) noiseblanker(rx.nb.gen);
- if (rx.nb_sdrom.flag) SDROMnoiseblanker(rx.nb_sdrom.gen);
+ if (rx[k].nb.flag) noiseblanker(rx[k].nb.gen);
+ if (rx[k].nb_sdrom.flag) SDROMnoiseblanker(rx[k].nb_sdrom.gen);
- correctIQ(rx.buf.i, rx.iqfix);
+ // metering for uncorrected values here
- /* 2nd if conversion happens here */
- if (rx.osc.gen->Frequency != 0.0) {
- ComplexOSC(rx.osc.gen);
+ do_rx_meter(k, rx[k].buf.i, RXMETER_PRE_CONV);
+
+ correctIQ(rx[k].buf.i, rx[k].iqfix);
+
+ /* 2nd IF conversion happens here */
+
+ if (rx[k].osc.gen->Frequency != 0.0) {
+ ComplexOSC(rx[k].osc.gen);
for (i = 0; i < n; i++)
- CXBdata(rx.buf.i, i) = Cmul(CXBdata(rx.buf.i, i),
- OSCCdata(rx.osc.gen, i));
+ CXBdata(rx[k].buf.i, i) = Cmul(CXBdata(rx[k].buf.i, i),
+ OSCCdata(rx[k].osc.gen, i));
}
- /* filtering, metering, squelch, & AGC */
- if (rx.mode != SPEC) {
- if (rx.tick == 0) reset_OvSv(rx.filt.ovsv);
- filter_OvSv(rx.filt.ovsv);
- CXBhave(rx.buf.o) = CXBhave(rx.buf.i);
- if (uni.meter.flag) do_meter(CXBbase(rx.buf.o), uni.buflen);
- if (should_do_rx_squelch()) do_squelch();
- if (rx.agc.flag) DigitalAgc(rx.agc.gen, rx.tick);
- } else if (uni.meter.flag)
- do_meter(CXBbase(rx.buf.o), uni.buflen);
+ /* filtering, metering, spectrum, squelch, & AGC */
+
+ if (rx[k].mode == SPEC)
+
+ do_rx_spectrum(k, rx[k].buf.i, SPEC_SEMI_RAW);
+
+ else {
+
+ do_rx_meter(k, rx[k].buf.i, RXMETER_PRE_FILT);
+ do_rx_spectrum(k, rx[k].buf.i, SPEC_PRE_FILT);
+
+ if (rx[k].tick == 0)
+ reset_OvSv(rx[k].filt.ovsv);
+
+ filter_OvSv(rx[k].filt.ovsv);
+ CXBhave(rx[k].buf.o) = CXBhave(rx[k].buf.i);
+
+ do_rx_meter(k, rx[k].buf.o, RXMETER_POST_FILT);
+ do_rx_spectrum(k, rx[k].buf.o, SPEC_POST_FILT);
+
+ if (rx[k].cpd.flag)
+ WSCompand(rx[k].cpd.gen);
+
+ if (should_do_rx_squelch(k))
+ do_squelch(k);
+
+ else if (rx[k].agc.flag)
+ DigitalAgc(rx[k].agc.gen, rx[k].tick);
+
+ do_rx_spectrum(k, rx[k].buf.o, SPEC_POST_AGC);
+ }
}
PRIVATE void
-do_rx_post(void) {
- int i, n = CXBhave(rx.buf.o);
-
- if (!rx.squelch.set) {
- no_squelch();
+do_rx_post(int k) {
+ int i, n = CXBhave(rx[k].buf.o);
+
+ if (!rx[k].squelch.set) {
+ no_squelch(k);
// spotting tone
- if (rx.spot.flag) {
+ if (rx[k].spot.flag) {
// remember whether it's turned itself off during this pass
- rx.spot.flag = SpotTone(rx.spot.gen);
+ rx[k].spot.flag = SpotTone(rx[k].spot.gen);
for (i = 0; i < n; i++)
- CXBdata(rx.buf.o, i) = Cadd(CXBdata(rx.buf.o, i),
- CXBdata(rx.spot.gen->buf, i));
+ CXBdata(rx[k].buf.o, i) = Cadd(CXBdata(rx[k].buf.o, i),
+ CXBdata(rx[k].spot.gen->buf, i));
}
}
-
- //
- // mix in sidetone here
- //
-
- if (rx.scl.post.flag)
+
+ // final scaling
+
+ if (rx[k].scl.post.flag)
for (i = 0; i < n; i++)
- CXBdata(rx.buf.o, i) = Cscl(CXBdata(rx.buf.o, i),
- rx.scl.post.val);
-
- // not binaural? collapse
- if (!rx.bin.flag)
+ CXBdata(rx[k].buf.o, i) = Cscl(CXBdata(rx[k].buf.o, i),
+ rx[k].scl.post.val);
+
+ // not binaural?
+ // position in stereo field
+
+ if (!rx[k].bin.flag)
for (i = 0; i < n; i++)
- CXBimag(rx.buf.o, i) = CXBreal(rx.buf.o, i);
+ CXBdata(rx[k].buf.o, i) = Cscl(rx[k].azim, CXBreal(rx[k].buf.o, i));
}
/* demod processing */
PRIVATE void
-do_rx_SBCW(void) {
- if (rx.anr.flag) lmsr_adapt(rx.anr.gen);
- if (rx.anf.flag) lmsr_adapt(rx.anf.gen);
+do_rx_SBCW(int k) {
+ if (rx[k].anr.flag) lmsr_adapt(rx[k].anr.gen);
+ if (rx[k].anf.flag) lmsr_adapt(rx[k].anf.gen);
}
PRIVATE void
-do_rx_AM(void) { AMDemod(rx.am.gen); }
+do_rx_AM(int k) { AMDemod(rx[k].am.gen); }
PRIVATE void
-do_rx_FM(void) { FMDemod(rx.fm.gen); }
+do_rx_FM(int k) { FMDemod(rx[k].fm.gen); }
PRIVATE void
-do_rx_DRM(void) {}
+do_rx_DRM(int k) {}
PRIVATE void
-do_rx_SPEC(void) {
- memcpy(CXBbase(rx.buf.o),
- CXBbase(rx.buf.i),
- sizeof(COMPLEX) * CXBhave(rx.buf.i));
- if (rx.agc.flag) DigitalAgc(rx.agc.gen, rx.tick);
+do_rx_SPEC(int k) {
+ memcpy(CXBbase(rx[k].buf.o),
+ CXBbase(rx[k].buf.i),
+ sizeof(COMPLEX) * CXBhave(rx[k].buf.i));
+ if (rx[k].agc.flag) DigitalAgc(rx[k].agc.gen, rx[k].tick);
}
PRIVATE void
-do_rx_NIL(void) {
- int i, n = min(CXBhave(rx.buf.i), uni.buflen);
- for (i = 0; i < n; i++) CXBdata(rx.buf.o, i) = cxzero;
+do_rx_NIL(int k) {
+ int i, n = min(CXBhave(rx[k].buf.i), uni.buflen);
+ for (i = 0; i < n; i++) CXBdata(rx[k].buf.o, i) = cxzero;
}
/* overall dispatch for RX processing */
PRIVATE void
-do_rx(void) {
- do_rx_pre();
- switch (rx.mode) {
+do_rx(int k) {
+ do_rx_pre(k);
+ switch (rx[k].mode) {
case USB:
case LSB:
case CWU:
case CWL:
- case DSB: do_rx_SBCW(); break;
+ case DSB: do_rx_SBCW(k); break;
case AM:
- case SAM: do_rx_AM(); break;
- case FMN: do_rx_FM(); break;
- case DRM: do_rx_DRM(); break;
+ case SAM: do_rx_AM(k); break;
+ case FMN: do_rx_FM(k); break;
+ case DRM: do_rx_DRM(k); break;
case SPEC:
- default: do_rx_SPEC(); break;
+ default: do_rx_SPEC(k); break;
}
- do_rx_post();
+ do_rx_post(k);
}
//==============================================================
CXBdata(tx.buf.i, i) = Cmplx(CXBreal(tx.buf.i, i) * tx.scl.pre.val, 0.0);
}
- //
- // mix in CW tone here?
- //
-
correctIQ(tx.buf.i, tx.iqfix);
- if (tx.spr.flag) SpeechProcessor(tx.spr.gen);
+ if (tx.dcb.flag) DCBlock(tx.dcb.gen);
if (tx.tick == 0) reset_OvSv(tx.filt.ovsv);
filter_OvSv(tx.filt.ovsv);
+
}
PRIVATE void
CXBhave(tx.buf.o) = CXBhave(tx.buf.i);
if (tx.agc.flag) DigitalAgc(tx.agc.gen, tx.tick);
+
+ // meter modulated signal
+
+ do_tx_meter(tx.buf.o, TXMETER_POST_MOD);
+
if (tx.scl.post.flag) {
int i, n = CXBhave(tx.buf.o);
for (i = 0; i < n; i++)
CXBdata(tx.buf.o, i) = Cscl(CXBdata(tx.buf.o, i), tx.scl.post.val);
}
- if (uni.meter.flag) do_meter(CXBbase(tx.buf.o), uni.buflen);
+
+ if (tx.spr.flag) SpeechProcessor(tx.spr.gen);
+ if (tx.cpd.flag) WSCompand(tx.cpd.gen);
+
+ if (uni.spec.flag)
+ do_tx_spectrum(tx.buf.o);
+
if (tx.osc.gen->Frequency != 0.0) {
int i;
ComplexOSC(tx.osc.gen);
come here when there are buffers to work on */
void
-process_samples(float *bufl, float *bufr, int n) {
- int i;
-
+process_samples(float *bufl, float *bufr,
+ float *auxl, float *auxr,
+ int n) {
+ int i, k;
+
switch (uni.mode.trx) {
-
+
case RX:
- for (i = 0; i < n; i++)
- CXBimag(rx.buf.i, i) = bufl[i], CXBreal(rx.buf.i, i) = bufr[i];
- CXBhave(rx.buf.i) = n;
-
- do_rx(), rx.tick++;
+
+ // make copies of the input for all receivers
+ for (k = 0; k < uni.multirx.nrx; k++)
+ if (uni.multirx.act[k]) {
+ for (i = 0; i < n; i++)
+ CXBimag(rx[k].buf.i, i) = bufl[i], CXBreal(rx[k].buf.i, i) = bufr[i];
+ CXBhave(rx[k].buf.i) = n;
+ }
+
+ // prepare buffers for mixing
+ memset((char *) bufl, 0, n * sizeof(float));
+ memset((char *) bufr, 0, n * sizeof(float));
+
+ // run all receivers
+ for (k = 0; k < uni.multirx.nrx; k++)
+ if (uni.multirx.act[k]) {
+ do_rx(k), rx[k].tick++;
+ // mix
+ for (i = 0; i < n; i++)
+ bufl[i] += (float) CXBimag(rx[k].buf.o, i),
+ bufr[i] += (float) CXBreal(rx[k].buf.o, i);
+ CXBhave(rx[k].buf.o) = n;
+ }
+
+ // late mixing of aux buffers
+ if (uni.mix.rx.flag)
+ for (i = 0; i < n; i++)
+ bufl[i] += (float) (auxl[i] * uni.mix.rx.gain),
+ bufr[i] += (float) (auxr[i] * uni.mix.rx.gain);
- for (i = 0; i < n; i++)
- bufl[i] = (float) CXBimag(rx.buf.o, i), bufr[i] = (float) CXBreal(rx.buf.o, i);
- CXBhave(rx.buf.o) = n;
break;
case TX:
+
+ // early mixing of aux buffers
+ if (uni.mix.tx.flag)
+ for (i = 0; i < n; i++)
+ bufl[i] += (float) (auxl[i] * uni.mix.tx.gain),
+ bufr[i] += (float) (auxr[i] * uni.mix.tx.gain);
+
for (i = 0; i < n; i++)
CXBimag(tx.buf.i, i) = bufl[i], CXBreal(tx.buf.i, i) = bufr[i];
CXBhave(tx.buf.i) = n;
for (i = 0; i < n; i++)
bufl[i] = (float) CXBimag(tx.buf.o, i), bufr[i] = (float) CXBreal(tx.buf.o, i);
CXBhave(tx.buf.o) = n;
+
break;
}
projects / dttsp.git / blobdiff