mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-17 22:01:45 -05:00
658 lines
18 KiB
C++
658 lines
18 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <cstdio>
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#include <cstring>
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#include <regex>
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#include <iio.h>
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#include <boost/lexical_cast.hpp>
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#include <QtGlobal>
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#include "dsp/wfir.h"
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#include "deviceplutosdr.h"
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#include "deviceplutosdrbox.h"
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DevicePlutoSDRBox::DevicePlutoSDRBox(const std::string& uri) :
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m_lpfFIRRxGain(0),
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m_lpfFIRTxGain(0),
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m_chnRx0(0),
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m_chnTx0(0),
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m_rxBuf(0),
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m_txBuf(0),
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m_xoInitial(0)
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{
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m_ctx = iio_create_context_from_uri(uri.c_str());
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m_devPhy = iio_context_find_device(m_ctx, "ad9361-phy");
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m_devRx = iio_context_find_device(m_ctx, "cf-ad9361-lpc");
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m_devTx = iio_context_find_device(m_ctx, "cf-ad9361-dds-core-lpc");
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m_valid = m_ctx && m_devPhy && m_devRx && m_devTx;
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if (m_valid) {
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getXO();
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setTracking();
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// int nb_channels = iio_device_get_channels_count(m_devRx);
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// for (int i = 0; i < nb_channels; i++) {
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// iio_channel_disable(iio_device_get_channel(m_devRx, i));
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// }
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// nb_channels = iio_device_get_channels_count(m_devTx);
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// for (int i = 0; i < nb_channels; i++) {
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// iio_channel_disable(iio_device_get_channel(m_devTx, i));
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// }
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}
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}
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DevicePlutoSDRBox::~DevicePlutoSDRBox()
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{
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deleteRxBuffer();
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deleteTxBuffer();
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closeRx();
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closeTx();
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if (m_ctx) { iio_context_destroy(m_ctx); }
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}
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void DevicePlutoSDRBox::set_params(DeviceType devType,
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const std::vector<std::string>& params)
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{
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iio_device *dev;
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switch (devType)
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{
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case DEVICE_PHY:
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dev = m_devPhy;
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break;
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case DEVICE_RX:
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dev = m_devRx;
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break;
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case DEVICE_TX:
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dev = m_devTx;
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break;
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default:
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dev = m_devPhy;
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break;
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}
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for (std::vector<std::string>::const_iterator it = params.begin(); it != params.end(); ++it)
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{
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struct iio_channel *chn = 0;
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const char *attr = 0;
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std::size_t pos;
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int ret;
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int type;
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pos = it->find('=');
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if (pos == std::string::npos)
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{
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std::cerr << "DevicePlutoSDRBox::set_params: Misformed line: " << *it << std::endl;
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continue;
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}
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std::string key = it->substr(0, pos);
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std::string val = it->substr(pos + 1, std::string::npos);
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ret = iio_device_identify_filename(dev, key.c_str(), &chn, &attr);
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if (ret)
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{
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std::cerr << "DevicePlutoSDRBox::set_params: Parameter not recognized: " << key << std::endl;
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continue;
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}
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if (chn) {
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ret = iio_channel_attr_write(chn, attr, val.c_str());
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type = 0;
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} else if (iio_device_find_attr(dev, attr)) {
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ret = iio_device_attr_write(dev, attr, val.c_str());
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type = 1;
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} else {
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ret = iio_device_debug_attr_write(dev, attr, val.c_str());
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type = 2;
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}
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if (ret < 0)
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{
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std::string item;
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switch (type)
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{
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case 0:
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item = "channel";
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break;
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case 1:
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item = "device";
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break;
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case 2:
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item = "debug";
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break;
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default:
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item = "unknown";
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break;
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}
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std::cerr << "DevicePlutoSDRBox::set_params: Unable to write " << item << " attribute " << key << "=" << val << ": " << ret << std::endl;
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}
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else
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{
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std::cerr << "DevicePlutoSDRBox::set_params: set attribute " << key << "=" << val << ": " << ret << std::endl;
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}
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}
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}
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bool DevicePlutoSDRBox::get_param(DeviceType devType, const std::string ¶m, std::string &value)
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{
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struct iio_channel *chn = 0;
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const char *attr = 0;
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char valuestr[256];
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int ret;
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ssize_t nchars;
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iio_device *dev;
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switch (devType)
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{
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case DEVICE_PHY:
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dev = m_devPhy;
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break;
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case DEVICE_RX:
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dev = m_devRx;
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break;
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case DEVICE_TX:
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dev = m_devTx;
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break;
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default:
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dev = m_devPhy;
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break;
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}
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ret = iio_device_identify_filename(dev, param.c_str(), &chn, &attr);
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if (ret)
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{
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std::cerr << "DevicePlutoSDRBox::get_param: Parameter not recognized: " << param << std::endl;
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return false;
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}
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if (chn) {
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nchars = iio_channel_attr_read(chn, attr, valuestr, 256);
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} else if (iio_device_find_attr(dev, attr)) {
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nchars = iio_device_attr_read(dev, attr, valuestr, 256);
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} else {
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nchars = iio_device_debug_attr_read(dev, attr, valuestr, 256);
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}
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if (nchars < 0)
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{
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std::cerr << "DevicePlutoSDRBox::get_param: Unable to read attribute " << param << ": " << nchars << std::endl;
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return false;
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}
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else
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{
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value.assign(valuestr);
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return true;
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}
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}
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void DevicePlutoSDRBox::setFilter(const std::string &filterConfigStr)
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{
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int ret;
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ret = iio_device_attr_write_raw(m_devPhy, "filter_fir_config", filterConfigStr.c_str(), filterConfigStr.size());
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if (ret < 0)
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{
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std::cerr << "DevicePlutoSDRBox::set_filter: Unable to set: " << filterConfigStr << ": " << ret << std::endl;
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}
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}
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bool DevicePlutoSDRBox::openRx()
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{
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if (!m_chnRx0) {
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m_chnRx0 = iio_device_find_channel(m_devRx, "voltage0", false);
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}
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if (m_chnRx0) {
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iio_channel_enable(m_chnRx0);
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const struct iio_data_format *df = iio_channel_get_data_format(m_chnRx0);
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qDebug("DevicePlutoSDRBox::openRx: length: %u bits: %u shift: %u signed: %s be: %s with_scale: %s scale: %lf repeat: %u",
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df->length,
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df->bits,
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df->shift,
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df->is_signed ? "true" : "false",
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df->is_be ? "true" : "false",
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df->with_scale? "true" : "false",
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df->scale,
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df->repeat);
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return true;
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} else {
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std::cerr << "DevicePlutoSDRBox::openRx: failed" << std::endl;
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return false;
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}
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}
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bool DevicePlutoSDRBox::openTx()
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{
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if (!m_chnTx0) {
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m_chnTx0 = iio_device_find_channel(m_devTx, "voltage0", true);
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}
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if (m_chnTx0) {
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iio_channel_enable(m_chnTx0);
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const struct iio_data_format *df = iio_channel_get_data_format(m_chnTx0);
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qDebug("DevicePlutoSDRBox::openTx: length: %u bits: %u shift: %u signed: %s be: %s with_scale: %s scale: %lf repeat: %u",
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df->length,
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df->bits,
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df->shift,
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df->is_signed ? "true" : "false",
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df->is_be ? "true" : "false",
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df->with_scale? "true" : "false",
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df->scale,
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df->repeat);
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return true;
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} else {
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std::cerr << "DevicePlutoSDRBox::openTx: failed" << std::endl;
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return false;
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}
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}
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void DevicePlutoSDRBox::closeRx()
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{
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if (m_chnRx0) { iio_channel_disable(m_chnRx0); }
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}
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void DevicePlutoSDRBox::closeTx()
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{
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if (m_chnTx0) { iio_channel_disable(m_chnTx0); }
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}
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struct iio_buffer *DevicePlutoSDRBox::createRxBuffer(unsigned int size, bool cyclic)
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{
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if (m_devRx) {
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m_rxBuf = iio_device_create_buffer(m_devRx, size, cyclic ? '\1' : '\0');
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} else {
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m_rxBuf = 0;
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}
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return m_rxBuf;
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}
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struct iio_buffer *DevicePlutoSDRBox::createTxBuffer(unsigned int size, bool cyclic)
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{
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if (m_devTx) {
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m_txBuf = iio_device_create_buffer(m_devTx, size, cyclic ? '\1' : '\0');
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} else {
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m_txBuf = 0;
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}
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return m_txBuf;
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}
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void DevicePlutoSDRBox::deleteRxBuffer()
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{
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if (m_rxBuf) {
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iio_buffer_destroy(m_rxBuf);
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m_rxBuf = 0;
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}
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}
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void DevicePlutoSDRBox::deleteTxBuffer()
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{
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if (m_txBuf) {
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iio_buffer_destroy(m_txBuf);
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m_txBuf = 0;
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}
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}
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ssize_t DevicePlutoSDRBox::getRxSampleSize()
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{
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if (m_devRx) {
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return iio_device_get_sample_size(m_devRx);
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} else {
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return 0;
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}
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}
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ssize_t DevicePlutoSDRBox::getTxSampleSize()
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{
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if (m_devTx) {
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return iio_device_get_sample_size(m_devTx);
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} else {
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return 0;
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}
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}
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ssize_t DevicePlutoSDRBox::rxBufferRefill()
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{
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if (m_rxBuf) {
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return iio_buffer_refill(m_rxBuf);
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} else {
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return 0;
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}
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}
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ssize_t DevicePlutoSDRBox::txBufferPush()
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{
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if (m_txBuf) {
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return iio_buffer_push(m_txBuf);
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} else {
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return 0;
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}
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}
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std::ptrdiff_t DevicePlutoSDRBox::rxBufferStep()
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{
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if (m_rxBuf) {
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return iio_buffer_step(m_rxBuf);
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} else {
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return 0;
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}
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}
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char* DevicePlutoSDRBox::rxBufferEnd()
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{
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if (m_rxBuf) {
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return (char *) iio_buffer_end(m_rxBuf);
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} else {
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return 0;
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}
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}
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char* DevicePlutoSDRBox::rxBufferFirst()
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{
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if (m_rxBuf) {
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return (char *) iio_buffer_first(m_rxBuf, m_chnRx0);
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} else {
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return 0;
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}
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}
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std::ptrdiff_t DevicePlutoSDRBox::txBufferStep()
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{
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if (m_txBuf) {
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return iio_buffer_step(m_txBuf);
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} else {
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return 0;
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}
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}
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char* DevicePlutoSDRBox::txBufferEnd()
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{
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if (m_txBuf) {
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return (char *) iio_buffer_end(m_txBuf);
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} else {
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return 0;
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}
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}
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char* DevicePlutoSDRBox::txBufferFirst()
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{
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if (m_txBuf) {
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return (char *) iio_buffer_first(m_txBuf, m_chnTx0);
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} else {
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return 0;
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}
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}
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bool DevicePlutoSDRBox::getRxSampleRates(SampleRates& sampleRates)
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{
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std::string srStr;
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if (get_param(DEVICE_PHY, "rx_path_rates", srStr)) {
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qDebug("DevicePlutoSDRBox::getRxSampleRates: %s", srStr.c_str());
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return parseSampleRates(srStr, sampleRates);
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} else {
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return false;
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}
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}
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bool DevicePlutoSDRBox::getTxSampleRates(SampleRates& sampleRates)
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{
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std::string srStr;
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if (get_param(DEVICE_PHY, "tx_path_rates", srStr)) {
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return parseSampleRates(srStr, sampleRates);
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} else {
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return false;
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}
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}
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bool DevicePlutoSDRBox::parseSampleRates(const std::string& rateStr, SampleRates& sampleRates)
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{
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// Rx: "BBPLL:983040000 ADC:245760000 R2:122880000 R1:61440000 RF:30720000 RXSAMP:30720000"
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// Tx: "BBPLL:983040000 DAC:122880000 T2:122880000 T1:61440000 TF:30720000 TXSAMP:30720000"
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std::regex desc_regex("BBPLL:(.+) ..C:(.+) .2:(.+) .1:(.+) .F:(.+) .XSAMP:(.+)");
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std::smatch desc_match;
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std::regex_search(rateStr, desc_match, desc_regex);
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std::string valueStr;
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if (desc_match.size() == 7)
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{
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try
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{
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sampleRates.m_bbRateHz = boost::lexical_cast<uint32_t>(desc_match[1]);
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sampleRates.m_addaConnvRate = boost::lexical_cast<uint32_t>(desc_match[2]);
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sampleRates.m_hb3Rate = boost::lexical_cast<uint32_t>(desc_match[3]);
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sampleRates.m_hb2Rate = boost::lexical_cast<uint32_t>(desc_match[4]);
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sampleRates.m_hb1Rate = boost::lexical_cast<uint32_t>(desc_match[5]);
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sampleRates.m_firRate = boost::lexical_cast<uint32_t>(desc_match[6]);
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return true;
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}
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catch (const boost::bad_lexical_cast &e)
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{
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qWarning("DevicePlutoSDRBox::parseSampleRates: bad conversion to numeric");
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return false;
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}
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}
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else
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{
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return false;
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}
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}
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void DevicePlutoSDRBox::setSampleRate(uint32_t sampleRate)
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{
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char buff[100];
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std::vector<std::string> params;
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snprintf(buff, sizeof(buff), "in_voltage_sampling_frequency=%d", sampleRate);
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params.push_back(std::string(buff));
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snprintf(buff, sizeof(buff), "out_voltage_sampling_frequency=%d", sampleRate);
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params.push_back(std::string(buff));
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set_params(DEVICE_PHY, params);
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m_devSampleRate = sampleRate;
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}
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/**
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* @param sampleRate baseband sample rate (S/s)
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* @param log2IntDec FIR interpolation or decimation factor
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* @param use Rx or Tx. Applies to the rest of the parameters
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* @param bw FIR filter bandwidth at approximately -6 dB cutoff (Hz)
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* @param gain FIR filter gain (dB)
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*/
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void DevicePlutoSDRBox::setFIR(uint32_t sampleRate, uint32_t log2IntDec, DeviceUse use, uint32_t bw, int gain)
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{
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SampleRates sampleRates;
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std::ostringstream ostr;
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uint32_t nbTaps;
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double normalizedBW;
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uint32_t intdec = 1<<(log2IntDec > 2 ? 2 : log2IntDec);
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// update gain parameter
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if (use == USE_RX) {
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m_lpfFIRRxGain = gain;
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} else {
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m_lpfFIRTxGain = gain;
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}
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// set a dummy minimal filter first to get the sample rates right
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setFIREnable(false); // disable first
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formatFIRHeader(ostr, intdec);
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formatFIRCoefficients(ostr, 16, 0.5);
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setFilter(ostr.str());
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ostr.str(""); // reset string stream
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setFIREnable(true); // re-enable
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setSampleRate(sampleRate); // set to new sample rate
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if (!getRxSampleRates(sampleRates)) {
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return;
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}
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setFIREnable(false); // disable again
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uint32_t nbGroups = sampleRates.m_addaConnvRate / 16;
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nbTaps = nbGroups*8 > 128 ? 128 : nbGroups*8;
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nbTaps = intdec == 1 ? (nbTaps > 64 ? 64 : nbTaps) : nbTaps;
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normalizedBW = ((float) bw) / sampleRates.m_hb1Rate;
|
|
normalizedBW = normalizedBW < DevicePlutoSDR::firBWLowLimitFactor ?
|
|
DevicePlutoSDR::firBWLowLimitFactor :
|
|
normalizedBW > DevicePlutoSDR::firBWHighLimitFactor ? DevicePlutoSDR::firBWHighLimitFactor : normalizedBW;
|
|
|
|
qDebug("DevicePlutoSDRBox::setFIR: intdec: %u gain: %d nbTaps: %u BWin: %u BW: %f (%f)",
|
|
intdec,
|
|
gain,
|
|
nbTaps,
|
|
bw,
|
|
normalizedBW*sampleRates.m_hb1Rate,
|
|
normalizedBW);
|
|
|
|
// set the right filter
|
|
|
|
formatFIRHeader(ostr, intdec);
|
|
formatFIRCoefficients(ostr, nbTaps, normalizedBW);
|
|
setFilter(ostr.str());
|
|
|
|
m_lpfFIRlog2Decim = log2IntDec;
|
|
m_lpfFIRBW = bw;
|
|
|
|
// enable and set sample rate will be done by the caller
|
|
}
|
|
|
|
void DevicePlutoSDRBox::setFIREnable(bool enable)
|
|
{
|
|
char buff[100];
|
|
std::vector<std::string> params;
|
|
snprintf(buff, sizeof(buff), "in_out_voltage_filter_fir_en=%d", enable ? 1 : 0);
|
|
params.push_back(std::string(buff));
|
|
set_params(DEVICE_PHY, params);
|
|
m_lpfFIREnable = enable;
|
|
}
|
|
|
|
void DevicePlutoSDRBox::setLOPPMTenths(int ppmTenths)
|
|
{
|
|
char buff[100];
|
|
std::vector<std::string> params;
|
|
int64_t newXO = m_xoInitial + ((m_xoInitial*ppmTenths) / 10000000L);
|
|
snprintf(buff, sizeof(buff), "xo_correction=%ld", newXO);
|
|
params.push_back(std::string(buff));
|
|
set_params(DEVICE_PHY, params);
|
|
m_LOppmTenths = ppmTenths;
|
|
}
|
|
|
|
void DevicePlutoSDRBox::formatFIRHeader(std::ostringstream& ostr,uint32_t intdec)
|
|
{
|
|
ostr << "RX 3 GAIN " << m_lpfFIRRxGain << " DEC " << intdec << std::endl;
|
|
ostr << "TX 3 GAIN " << m_lpfFIRTxGain << " INT " << intdec << std::endl;
|
|
}
|
|
|
|
void DevicePlutoSDRBox::formatFIRCoefficients(std::ostringstream& ostr, uint32_t nbTaps, double normalizedBW)
|
|
{
|
|
double *fcoeffs = new double[nbTaps];
|
|
WFIR::BasicFIR(fcoeffs, nbTaps, WFIR::LPF, normalizedBW, 0.0, normalizedBW < 0.2 ? WFIR::wtHAMMING : WFIR::wtBLACKMAN_HARRIS, 0.0);
|
|
|
|
for (unsigned int i = 0; i < nbTaps; i++) {
|
|
ostr << (int16_t) (fcoeffs[i] * 32768.0) << ", " << (int16_t) (fcoeffs[i] * 32768.0) << std::endl;
|
|
}
|
|
|
|
delete[] fcoeffs;
|
|
}
|
|
|
|
void DevicePlutoSDRBox::getXO()
|
|
{
|
|
std::string valueStr;
|
|
get_param(DEVICE_PHY, "xo_correction", valueStr);
|
|
try
|
|
{
|
|
m_xoInitial = boost::lexical_cast<int64_t>(valueStr);
|
|
qDebug("DevicePlutoSDRBox::getXO: %ld", m_xoInitial);
|
|
}
|
|
catch (const boost::bad_lexical_cast &e)
|
|
{
|
|
qWarning("DevicePlutoSDRBox::getXO: cannot get initial XO correction");
|
|
}
|
|
}
|
|
|
|
bool DevicePlutoSDRBox::getRxRSSI(std::string& rssiStr, unsigned int chan)
|
|
{
|
|
chan = chan % 2;
|
|
char buff[20];
|
|
snprintf(buff, sizeof(buff), "in_voltage%d_rssi", chan);
|
|
return get_param(DEVICE_PHY, buff, rssiStr);
|
|
}
|
|
|
|
bool DevicePlutoSDRBox::getTxRSSI(std::string& rssiStr, unsigned int chan)
|
|
{
|
|
chan = chan % 2;
|
|
char buff[20];
|
|
snprintf(buff, sizeof(buff), "out_voltage%d_rssi", chan);
|
|
return get_param(DEVICE_PHY, buff, rssiStr);
|
|
}
|
|
|
|
bool DevicePlutoSDRBox::fetchTemp()
|
|
{
|
|
std::string temp_mC_str;
|
|
|
|
if (get_param(DEVICE_PHY, "in_temp0_input", temp_mC_str))
|
|
{
|
|
try
|
|
{
|
|
uint32_t temp_mC = boost::lexical_cast<uint32_t>(temp_mC_str);
|
|
m_temp = temp_mC / 1000.0;
|
|
return true;
|
|
}
|
|
catch (const boost::bad_lexical_cast &e)
|
|
{
|
|
std::cerr << "PlutoSDRDevice::getTemp: bad conversion to numeric" << std::endl;
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool DevicePlutoSDRBox::getRateGovernors(std::string& rateGovernors)
|
|
{
|
|
return get_param(DEVICE_PHY, "trx_rate_governor", rateGovernors);
|
|
}
|
|
|
|
void DevicePlutoSDRBox::setTracking()
|
|
{
|
|
// in_voltage_quadrature_tracking_en
|
|
char buff[100];
|
|
std::vector<std::string> params;
|
|
snprintf(buff, sizeof(buff), "in_voltage_quadrature_tracking_en=1");
|
|
params.push_back(std::string(buff));
|
|
snprintf(buff, sizeof(buff), "in_voltage_bb_dc_offset_tracking_en=1");
|
|
params.push_back(std::string(buff));
|
|
snprintf(buff, sizeof(buff), "in_voltage_rf_dc_offset_tracking_en=1");
|
|
params.push_back(std::string(buff));
|
|
set_params(DEVICE_PHY, params);
|
|
}
|
|
|