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Always request streamMTU, handle 'overflow' within CubicSDR

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This commit is contained in:
Charles J. Cliffe 2016-01-26 21:49:42 -05:00
parent a9e88256e4
commit f5ca92281d
3 changed files with 55 additions and 8 deletions
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2
CMakeLists.txt
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@ -6,7 +6,7 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/")
SET(CUBICSDR_VERSION_MAJOR "0")
SET(CUBICSDR_VERSION_MINOR "1")
SET(CUBICSDR_VERSION_PATCH "22")
SET(CUBICSDR_VERSION_PATCH "23")
SET(CUBICSDR_VERSION_REL "alpha")
SET(CUBICSDR_VERSION "${CUBICSDR_VERSION_MAJOR}.${CUBICSDR_VERSION_MINOR}.${CUBICSDR_VERSION_PATCH}-${CUBICSDR_VERSION_REL}")

57
src/sdr/SoapySDRThread.cpp
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@ -55,6 +55,7 @@ SoapySDR::Kwargs SDRThread::combineArgs(SoapySDR::Kwargs a, SoapySDR::Kwargs b)
}
void SDRThread::init() {
//#warning Debug On
// SoapySDR_setLogLevel(SOAPY_SDR_DEBUG);
SDRDeviceInfo *devInfo = deviceInfo.load();
@ -71,9 +72,17 @@ void SDRThread::init() {
SoapySDR::Kwargs args = devInfo->getDeviceArgs();
wxGetApp().sdrEnumThreadNotify(SDREnumerator::SDR_ENUM_MESSAGE, std::string("Initializing device."));
device = SoapySDR::Device::make(args);
SoapySDR::Kwargs currentStreamArgs = combineArgs(devInfo->getStreamArgs(),streamArgs);
stream = device->setupStream(SOAPY_SDR_RX,"CF32", std::vector<size_t>(), currentStreamArgs);
int streamMTU = device->getStreamMTU(stream);
mtuElems.store(streamMTU);
std::cout << "Stream MTU: " << mtuElems.load() << std::endl << std::flush;
deviceInfo.load()->setStreamArgs(currentStreamArgs);
deviceConfig.load()->setStreamOpts(currentStreamArgs);
@ -100,9 +109,14 @@ void SDRThread::init() {
numChannels.store(getOptimalChannelCount(sampleRate.load()));
numElems.store(getOptimalElementCount(sampleRate.load(), 30));
if (!mtuElems.load()) {
mtuElems.store(numElems.load());
}
inpBuffer.data.resize(numElems.load());
overflowBuffer.data.resize(mtuElems.load());
buffs[0] = malloc(numElems * 2 * sizeof(float));
buffs[0] = malloc(mtuElems.load() * 4 * sizeof(float));
numOverflow = 0;
SoapySDR::ArgInfoList settingsInfo = device->getSettingInfo();
SoapySDR::ArgInfoList::const_iterator settings_i;
@ -151,11 +165,35 @@ void SDRThread::readStream(SDRThreadIQDataQueue* iqDataOutQueue) {
int flags;
long long timeNs;
int n_read = 0;
while (n_read != numElems && !terminated) {
int n_stream_read = device->readStream(stream, buffs, numElems-n_read, flags, timeNs);
if (n_stream_read > 0) {
int nElems = numElems.load();
int mtElems = mtuElems.load();
if (numOverflow > 0) {
int n_overflow = numOverflow;
if (n_overflow > nElems) {
n_overflow = nElems;
}
memcpy(&inpBuffer.data[0], &overflowBuffer.data[0], n_overflow * sizeof(float) * 2);
n_read = n_overflow;
numOverflow -= n_overflow;
if (numOverflow) { // still some left..
memmove(&overflowBuffer.data[0], &overflowBuffer.data[n_overflow], numOverflow * sizeof(float) * 2);
}
}
while (n_read < nElems && !terminated) {
int n_requested = nElems-n_read;
int n_stream_read = device->readStream(stream, buffs, mtElems, flags, timeNs);
if ((n_read + n_stream_read) > nElems) {
memcpy(&inpBuffer.data[n_read], buffs[0], n_requested * sizeof(float) * 2);
numOverflow = n_stream_read-n_requested;
liquid_float_complex **pp = (liquid_float_complex **)buffs[0];
pp += n_requested;
memcpy(&overflowBuffer.data[0], pp, numOverflow * sizeof(float) * 2);
n_read += n_requested;
} else if (n_stream_read > 0) {
memcpy(&inpBuffer.data[n_read], buffs[0], n_stream_read * sizeof(float) * 2);
n_read += n_stream_read;
} else {
@ -232,9 +270,16 @@ void SDRThread::updateSettings() {
sampleRate.store(device->getSampleRate(SOAPY_SDR_RX,0));
numChannels.store(getOptimalChannelCount(sampleRate.load()));
numElems.store(getOptimalElementCount(sampleRate.load(), 60));
int streamMTU = device->getStreamMTU(stream);
mtuElems.store(streamMTU);
if (!mtuElems.load()) {
mtuElems.store(numElems.load());
}
inpBuffer.data.resize(numElems.load());
overflowBuffer.data.resize(mtuElems.load());
free(buffs[0]);
buffs[0] = malloc(numElems.load() * 2 * sizeof(float));
buffs[0] = malloc(mtuElems.load() * 4 * sizeof(float));
numOverflow = 0;
rate_changed.store(false);
}

4
src/sdr/SoapySDRThread.h
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@ -94,6 +94,8 @@ protected:
void *buffs[1];
ReBuffer<SDRThreadIQData> buffers;
SDRThreadIQData inpBuffer;
SDRThreadIQData overflowBuffer;
int numOverflow;
std::atomic<DeviceConfig *> deviceConfig;
std::atomic<SDRDeviceInfo *> deviceInfo;
@ -103,7 +105,7 @@ protected:
std::atomic<uint32_t> sampleRate;
std::atomic_llong frequency, offset, lock_freq;
std::atomic_int ppm, numElems, numChannels;
std::atomic_int ppm, numElems, mtuElems, numChannels;
std::atomic_bool hasPPM, hasHardwareDC;
std::atomic_bool agc_mode, rate_changed, freq_changed, offset_changed,
ppm_changed, device_changed, agc_mode_changed, gain_value_changed, setting_value_changed, frequency_locked, frequency_lock_init;