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SDR: disable TX or RX by setting TX or RX frequency to 0

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This way it is possible to use SDR simplex
This commit is contained in:
Andreas Eversberg
2017-03-20 19:57:37 +01:00
parent 6e0e0c9ce8
commit 65694f3b80
3 changed files with 482 additions and 401 deletions
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256
src/common/soapy.c
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@@ -68,132 +68,156 @@ int soapy_open(const char *device_args, double tx_frequency, double rx_frequency
return -EIO;
}
/* set rate */
if (SoapySDRDevice_setSampleRate(sdr, SOAPY_SDR_TX, channel, rate) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX rate to %.0f Hz\n", rate);
soapy_close();
return -EIO;
}
if (SoapySDRDevice_setSampleRate(sdr, SOAPY_SDR_RX, channel, rate) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX rate to %.0f Hz\n", rate);
soapy_close();
return -EIO;
if (tx_frequency) {
/* set rate */
if (SoapySDRDevice_setSampleRate(sdr, SOAPY_SDR_TX, channel, rate) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX rate to %.0f Hz\n", rate);
soapy_close();
return -EIO;
}
/* see what rate actually is */
got_rate = SoapySDRDevice_getSampleRate(sdr, SOAPY_SDR_TX, channel);
if (got_rate != rate) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX rate %.0f Hz is not supported, try %0.f Hz\n", rate, got_rate);
soapy_close();
return -EINVAL;
}
/* set gain */
if (SoapySDRDevice_setGain(sdr, SOAPY_SDR_TX, channel, tx_gain) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX gain to %.0f\n", tx_gain);
soapy_close();
return -EIO;
}
/* see what gain actually is */
got_gain = SoapySDRDevice_getGain(sdr, SOAPY_SDR_TX, channel);
if (got_gain != tx_gain) {
PDEBUG(DUHD, DEBUG_NOTICE, "Given TX gain %.0f is not supported, we use %0.f\n", tx_gain, got_gain);
tx_gain = got_gain;
}
/* set frequency */
if (SoapySDRDevice_setFrequency(sdr, SOAPY_SDR_TX, channel, tx_frequency, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX frequency to %.0f Hz\n", tx_frequency);
soapy_close();
return -EIO;
}
/* see what frequency actually is */
got_frequency = SoapySDRDevice_getFrequency(sdr, SOAPY_SDR_TX, channel);
if (got_frequency != tx_frequency) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX frequency %.0f Hz is not supported, try %0.f Hz\n", tx_frequency, got_frequency);
soapy_close();
return -EINVAL;
}
/* set bandwidth */
if (SoapySDRDevice_setBandwidth(sdr, SOAPY_SDR_TX, channel, bandwidth) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX bandwidth to %.0f Hz\n", bandwidth);
soapy_close();
return -EIO;
}
/* see what bandwidth actually is */
got_bandwidth = SoapySDRDevice_getBandwidth(sdr, SOAPY_SDR_TX, channel);
if (got_bandwidth != bandwidth) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX bandwidth %.0f Hz is not supported, try %0.f Hz\n", bandwidth, got_bandwidth);
soapy_close();
return -EINVAL;
}
/* set up streamer */
if (SoapySDRDevice_setupStream(sdr, &txStream, SOAPY_SDR_TX, SOAPY_SDR_CF32, &channel, 1, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX streamer args\n");
soapy_close();
return -EIO;
}
/* get buffer sizes */
tx_samps_per_buff = SoapySDRDevice_getStreamMTU(sdr, txStream);
if (tx_samps_per_buff == 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to get TX streamer sample buffer\n");
soapy_close();
return -EIO;
}
}
/* see what rate actually is */
got_rate = SoapySDRDevice_getSampleRate(sdr, SOAPY_SDR_TX, channel);
if (got_rate != rate) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX rate %.0f Hz is not supported, try %0.f Hz\n", rate, got_rate);
soapy_close();
return -EINVAL;
}
got_rate = SoapySDRDevice_getSampleRate(sdr, SOAPY_SDR_RX, channel);
if (got_rate != rate) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX rate %.0f Hz is not supported, try %0.f Hz\n", rate, got_rate);
soapy_close();
return -EINVAL;
}
if (rx_frequency) {
/* set rate */
if (SoapySDRDevice_setSampleRate(sdr, SOAPY_SDR_RX, channel, rate) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX rate to %.0f Hz\n", rate);
soapy_close();
return -EIO;
}
/* set gain */
if (SoapySDRDevice_setGain(sdr, SOAPY_SDR_TX, channel, tx_gain) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX gain to %.0f\n", tx_gain);
soapy_close();
return -EIO;
}
if (SoapySDRDevice_setGain(sdr, SOAPY_SDR_RX, channel, rx_gain) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX gain to %.0f\n", rx_gain);
soapy_close();
return -EIO;
}
/* see what rate actually is */
got_rate = SoapySDRDevice_getSampleRate(sdr, SOAPY_SDR_RX, channel);
if (got_rate != rate) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX rate %.0f Hz is not supported, try %0.f Hz\n", rate, got_rate);
soapy_close();
return -EINVAL;
}
/* see what gain actually is */
got_gain = SoapySDRDevice_getGain(sdr, SOAPY_SDR_TX, channel);
if (got_gain != tx_gain) {
PDEBUG(DUHD, DEBUG_NOTICE, "Given TX gain %.0f is not supported, we use %0.f\n", tx_gain, got_gain);
tx_gain = got_gain;
}
got_gain = SoapySDRDevice_getGain(sdr, SOAPY_SDR_RX, channel);
if (got_gain != rx_gain) {
PDEBUG(DUHD, DEBUG_NOTICE, "Given RX gain %.3f is not supported, we use %.3f\n", rx_gain, got_gain);
rx_gain = got_gain;
}
/* set gain */
if (SoapySDRDevice_setGain(sdr, SOAPY_SDR_RX, channel, rx_gain) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX gain to %.0f\n", rx_gain);
soapy_close();
return -EIO;
}
/* set frequency */
if (SoapySDRDevice_setFrequency(sdr, SOAPY_SDR_TX, channel, tx_frequency, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX frequency to %.0f Hz\n", tx_frequency);
soapy_close();
return -EIO;
}
if (SoapySDRDevice_setFrequency(sdr, SOAPY_SDR_RX, channel, rx_frequency, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX frequency to %.0f Hz\n", rx_frequency);
soapy_close();
return -EIO;
}
/* see what gain actually is */
got_gain = SoapySDRDevice_getGain(sdr, SOAPY_SDR_RX, channel);
if (got_gain != rx_gain) {
PDEBUG(DUHD, DEBUG_NOTICE, "Given RX gain %.3f is not supported, we use %.3f\n", rx_gain, got_gain);
rx_gain = got_gain;
}
/* see what frequency actually is */
got_frequency = SoapySDRDevice_getFrequency(sdr, SOAPY_SDR_TX, channel);
if (got_frequency != tx_frequency) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX frequency %.0f Hz is not supported, try %0.f Hz\n", tx_frequency, got_frequency);
soapy_close();
return -EINVAL;
}
got_frequency = SoapySDRDevice_getFrequency(sdr, SOAPY_SDR_RX, channel);
if (got_frequency != rx_frequency) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX frequency %.0f Hz is not supported, try %0.f Hz\n", rx_frequency, got_frequency);
soapy_close();
return -EINVAL;
}
/* set frequency */
if (SoapySDRDevice_setFrequency(sdr, SOAPY_SDR_RX, channel, rx_frequency, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX frequency to %.0f Hz\n", rx_frequency);
soapy_close();
return -EIO;
}
/* set bandwidth */
if (SoapySDRDevice_setBandwidth(sdr, SOAPY_SDR_TX, channel, bandwidth) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX bandwidth to %.0f Hz\n", bandwidth);
soapy_close();
return -EIO;
}
if (SoapySDRDevice_setBandwidth(sdr, SOAPY_SDR_RX, channel, bandwidth) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX bandwidth to %.0f Hz\n", bandwidth);
soapy_close();
return -EIO;
}
/* see what frequency actually is */
got_frequency = SoapySDRDevice_getFrequency(sdr, SOAPY_SDR_RX, channel);
if (got_frequency != rx_frequency) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX frequency %.0f Hz is not supported, try %0.f Hz\n", rx_frequency, got_frequency);
soapy_close();
return -EINVAL;
}
/* see what bandwidth actually is */
got_bandwidth = SoapySDRDevice_getBandwidth(sdr, SOAPY_SDR_TX, channel);
if (got_bandwidth != bandwidth) {
PDEBUG(DUHD, DEBUG_ERROR, "Given TX bandwidth %.0f Hz is not supported, try %0.f Hz\n", bandwidth, got_bandwidth);
soapy_close();
return -EINVAL;
}
got_bandwidth = SoapySDRDevice_getBandwidth(sdr, SOAPY_SDR_RX, channel);
if (got_bandwidth != bandwidth) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX bandwidth %.0f Hz is not supported, try %0.f Hz\n", bandwidth, got_bandwidth);
soapy_close();
return -EINVAL;
}
/* set bandwidth */
if (SoapySDRDevice_setBandwidth(sdr, SOAPY_SDR_RX, channel, bandwidth) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX bandwidth to %.0f Hz\n", bandwidth);
soapy_close();
return -EIO;
}
/* set up streamer */
if (SoapySDRDevice_setupStream(sdr, &txStream, SOAPY_SDR_TX, SOAPY_SDR_CF32, &channel, 1, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set TX streamer args\n");
soapy_close();
return -EIO;
}
if (SoapySDRDevice_setupStream(sdr, &rxStream, SOAPY_SDR_RX, SOAPY_SDR_CF32, &channel, 1, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX streamer args\n");
soapy_close();
return -EIO;
}
/* see what bandwidth actually is */
got_bandwidth = SoapySDRDevice_getBandwidth(sdr, SOAPY_SDR_RX, channel);
if (got_bandwidth != bandwidth) {
PDEBUG(DUHD, DEBUG_ERROR, "Given RX bandwidth %.0f Hz is not supported, try %0.f Hz\n", bandwidth, got_bandwidth);
soapy_close();
return -EINVAL;
}
/* get buffer sizes */
tx_samps_per_buff = SoapySDRDevice_getStreamMTU(sdr, txStream);
if (tx_samps_per_buff == 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to get TX streamer sample buffer\n");
soapy_close();
return -EIO;
}
rx_samps_per_buff = SoapySDRDevice_getStreamMTU(sdr, rxStream);
if (rx_samps_per_buff == 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to get RX streamer sample buffer\n");
soapy_close();
return -EIO;
/* set up streamer */
if (SoapySDRDevice_setupStream(sdr, &rxStream, SOAPY_SDR_RX, SOAPY_SDR_CF32, &channel, 1, NULL) != 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to set RX streamer args\n");
soapy_close();
return -EIO;
}
/* get buffer sizes */
rx_samps_per_buff = SoapySDRDevice_getStreamMTU(sdr, rxStream);
if (rx_samps_per_buff == 0) {
PDEBUG(DUHD, DEBUG_ERROR, "Failed to get RX streamer sample buffer\n");
soapy_close();
return -EIO;
}
}
return 0;