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/*
* The MIT License (MIT)
*
* Copyright (c) 2018 Matthias P. Braendli
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "SoapyDummy.hpp"
#include <SoapySDR/Logger.hpp>
#include <SoapySDR/Formats.hpp>
#include <chrono>
#include <thread>
#include <algorithm>
std::vector<std::string> SoapyDummy::getStreamFormats(const int direction, const size_t channel) const
{
std::vector<std::string> formats;
formats.push_back(SOAPY_SDR_CF32);
return formats;
}
std::string SoapyDummy::getNativeStreamFormat(const int direction, const size_t channel, double &fullScale) const
{
fullScale = 1.0;
return SOAPY_SDR_CF32;
}
SoapySDR::ArgInfoList SoapyDummy::getStreamArgsInfo(const int direction, const size_t channel) const
{
SoapySDR::ArgInfoList streamArgs;
SoapySDR::ArgInfo buffersArg;
buffersArg.key="buffers";
buffersArg.value = std::to_string(1);
buffersArg.name = "Buffer Count";
buffersArg.description = "Number of buffers per read.";
buffersArg.units = "buffers";
buffersArg.type = SoapySDR::ArgInfo::INT;
streamArgs.push_back(buffersArg);
return streamArgs;
}
SoapySDR::Stream* SoapyDummy::setupStream(
const int direction,
const std::string &format,
const std::vector<size_t> &channels,
const SoapySDR::Kwargs &args )
{
if (channels.size() > 1 or (channels.size() > 0 and channels.at(0) != 0 )) {
throw std::runtime_error( "setupStream invalid channel selection" );
}
if (direction==SOAPY_SDR_RX) {
if (format == SOAPY_SDR_CF32) {
SoapySDR_log( SOAPY_SDR_DEBUG, "Using format CF32." );
}
else
throw std::runtime_error( "setupStream invalid format " + format );
return RX_STREAM;
}
else if (direction==SOAPY_SDR_TX) {
if (format == SOAPY_SDR_CF32) {
SoapySDR_log( SOAPY_SDR_DEBUG, "Using format CF32." );
}
else
throw std::runtime_error( "setupStream invalid format " + format );
return TX_STREAM;
}
else {
throw std::runtime_error("Invalid direction");
}
}
void SoapyDummy::closeStream( SoapySDR::Stream *stream )
{
if (stream == RX_STREAM) {
}
else if (stream == TX_STREAM) {
}
}
size_t SoapyDummy::getStreamMTU( SoapySDR::Stream *stream ) const
{
if (stream == RX_STREAM) {
return m_rxstream.mtu;
}
else if (stream == TX_STREAM) {
return m_txstream.mtu;
}
else {
throw std::runtime_error("Invalid stream");
}
}
int SoapyDummy::activateStream(
SoapySDR::Stream *stream,
const int flags,
const long long timeNs,
const size_t numElems )
{
if (stream == RX_STREAM) {
SoapySDR_logf(SOAPY_SDR_DEBUG, "Start RX");
m_rxstream.active = true;
}
else if (stream == TX_STREAM) {
SoapySDR_logf(SOAPY_SDR_DEBUG, "Start TX");
m_txstream.active = true;
}
return 0;
}
int SoapyDummy::deactivateStream(
SoapySDR::Stream *stream,
const int flags,
const long long timeNs )
{
if (stream == RX_STREAM) {
m_rxstream.active = false;
}
else if (stream == TX_STREAM) {
m_rxstream.active = false;
}
return 0;
}
int SoapyDummy::readStream(
SoapySDR::Stream *stream,
void * const *buffs,
const size_t numElems,
int &flags,
long long &timeNs,
const long timeoutUs )
{
if (stream != RX_STREAM){
return SOAPY_SDR_NOT_SUPPORTED;
}
if (not m_rxstream.active) {
using namespace std;
this_thread::sleep_for(chrono::microseconds(timeoutUs));
return SOAPY_SDR_TIMEOUT;
}
std::complex<float> * const buf = static_cast<std::complex<float> * const>(buffs[0]);
size_t numToRead = std::min(numElems, this->getStreamMTU(stream));
const size_t numRead = m_circ_buffer.read(buf, numToRead);
return numRead;
}
int SoapyDummy::writeStream(
SoapySDR::Stream *stream,
const void * const *buffs,
const size_t numElems,
int &flags,
const long long timeNs,
const long timeoutUs )
{
if (stream != TX_STREAM){
return SOAPY_SDR_NOT_SUPPORTED;
}
if (not m_txstream.active) {
using namespace std;
this_thread::sleep_for(chrono::microseconds(timeoutUs));
return SOAPY_SDR_TIMEOUT;
}
const std::complex<float> * const buf = static_cast<const std::complex<float> * const>(buffs[0]);
size_t numWritten = std::min(numElems, this->getStreamMTU(stream));
m_circ_buffer.write(buf, numWritten, timeNs);
return numWritten;
}
int SoapyDummy::readStreamStatus(
SoapySDR::Stream *stream,
size_t &chanMask,
int &flags,
long long &timeNs,
const long timeoutUs
){
if(stream != TX_STREAM){
return SOAPY_SDR_NOT_SUPPORTED;
}
return SOAPY_SDR_TIMEOUT;
}
size_t SoapyDummy::getNumDirectAccessBuffers(
SoapySDR::Stream *stream)
{
return 0;
}
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