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LimeSDR support (9)

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This commit is contained in:
f4exb
2017-04-15 10:31:16 +02:00
parent 3fa6c06d6f
commit 0204cca9e3
4 changed files with 259 additions and 26 deletions
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plugins/samplesource/limesdrinput/limesdrinput.cpp
+21 -23
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@@ -117,31 +117,11 @@ bool LimeSDRInput::openDevice()
return false;
}
// set up the stream
m_streamId.channel = m_deviceShared.m_channel; //channel number
m_streamId.channel.fifoSize = 1024 * 1024; //fifo size in samples TODO: adjust if necessary
m_streamId.throughputVsLatency = 1.0; //optimize for max throughput
m_streamId.isTx = false; //RX channel
m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; //12-bit integers
if (LMS_SetupStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId) != 0)
{
qCritical("LimeSDRInput::openDevice: cannot setup the stream on Rx channel %u", m_deviceShared.m_channel);
return false;
}
// TODO: start / stop streaming is done in the thread. You will need to pass the stream Id to the thread at thread creation
return true;
}
void LimeSDRInput::closeDevice()
{
// destroy the stream
LMS_DestroyStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId);
// release the channel
if (LMS_EnableChannel(m_deviceShared.m_deviceParams->getDevice(), LMS_CH_RX, m_deviceShared.m_channel, false) != 0)
@@ -163,20 +143,35 @@ void LimeSDRInput::closeDevice()
bool LimeSDRInput::start()
{
if (!m_deviceShared.m_dev) {
if (!m_deviceShared.m_deviceParams->getDevice()) {
return false;
}
if (m_running) stop();
if ((m_limeSDRInputThread = new LimeSDRInputThread(m_deviceShared.m_deviceParams->getDevice(), &m_sampleFifo)) == 0)
// set up the stream
m_streamId.channel = m_deviceShared.m_channel; //channel number
m_streamId.fifoSize = 1024 * 128; //fifo size in samples
m_streamId.throughputVsLatency = 1.0; //optimize for max throughput
m_streamId.isTx = false; //RX channel
m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; //12-bit integers
if (LMS_SetupStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId) != 0)
{
qCritical("LimeSDRInput::start: cannot setup the stream on Rx channel %u", m_deviceShared.m_channel);
return false;
}
// start / stop streaming is done in the thread.
if ((m_limeSDRInputThread = new LimeSDRInputThread(&m_streamId, &m_sampleFifo)) == 0)
{
qFatal("LimeSDRInput::start: out of memory");
stop();
return false;
}
m_limeSDRInputThread->setSamplerate(m_deviceShared.m_deviceParams->m_sampleRate);
m_limeSDRInputThread->setLog2Decimation(m_settings.m_log2SoftDecim);
m_limeSDRInputThread->setFcPos((int) m_settings.m_fcPos);
@@ -197,6 +192,9 @@ void LimeSDRInput::stop()
m_limeSDRInputThread = 0;
}
// destroy the stream
LMS_DestroyStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId);
m_running = false;
}