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Adding AD9361 fpga signal source

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This commit is contained in:
Javier Arribas 2018-03-02 11:30:36 +01:00
parent 332a311328
commit dc4c7b9551
7 changed files with 483 additions and 0 deletions
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1
CMakeLists.txt
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@ -50,6 +50,7 @@ option(ENABLE_ARRAY "Enable the use of CTTC's antenna array front-end as signal
option(ENABLE_GN3S "Enable the use of the GN3S dongle as signal source (experimental)" OFF)
option(ENABLE_PLUTOSDR "Enable the use of ADALM-PLUTO Evaluation Boards (Analog Devices Inc.), requires gr-iio" OFF)
option(ENABLE_FMCOMMS2 "Enable the use of FMCOMMS4-EBZ + ZedBoard hardware, requires gr-iio" OFF)
option(ENABLE_AD9361 "Enable the use of AD9361 directo to FPGA hardware, requires gr-iio" OFF)
# Performance analysis tools
option(ENABLE_GPERFTOOLS "Enable linking to Gperftools libraries (tcmalloc and profiler)" OFF)

32
cmake/Modules/Findlibiio.cmake Normal file
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@ -0,0 +1,32 @@
INCLUDE(FindPkgConfig)
PKG_CHECK_MODULES(PC_LIBIIO libiio)
FIND_PATH(
LIBIIO_INCLUDE_DIRS
NAMES gnuradio/iio/api.h
HINTS $ENV{LIBIIO_DIR}/include
${PC_LIBIIO_INCLUDEDIR}
PATHS ${CMAKE_INSTALL_PREFIX}/include
/usr/local/include
/usr/include
)
FIND_LIBRARY(
LIBIIO_LIBRARIES
NAMES libiio.so
HINTS $ENV{LIBIIO_DIR}/lib
${PC_LIBIIO_LIBDIR}
PATHS ${CMAKE_INSTALL_PREFIX}/lib
${CMAKE_INSTALL_PREFIX}/lib64
/usr/local/lib
/usr/local/lib64
/usr/lib
/usr/lib64
/usr/lib/x86_64-linux-gnu
)
message("find libiio:")
message(${LIBIIO_LIBRARIES})
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBIIO DEFAULT_MSG LIBIIO_LIBRARIES LIBIIO_INCLUDE_DIRS)
MARK_AS_ADVANCED(LIBIIO_LIBRARIES LIBIIO_INCLUDE_DIRS)

24
src/algorithms/signal_source/adapters/CMakeLists.txt
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@ -35,6 +35,20 @@ if(ENABLE_PLUTOSDR OR ENABLE_FMCOMMS2)
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${IIO_INCLUDE_DIRS})
endif(ENABLE_PLUTOSDR OR ENABLE_FMCOMMS2)
if(ENABLE_AD9361)
find_package(libiio REQUIRED)
if(NOT LIBIIO_FOUND)
message(STATUS "gnuradio-iio not found, its installation is required.")
message(STATUS "Please build and install the following projects:")
message(STATUS " * libiio from https://github.com/analogdevicesinc/libiio")
message(STATUS " * libad9361-iio from https://github.com/analogdevicesinc/libad9361-iio")
message(STATUS " * gnuradio-iio from https://github.com/analogdevicesinc/gr-iio")
message(FATAL_ERROR "gnuradio-iio required for building gnss-sdr with this option enabled")
endif(NOT LIBIIO_FOUND)
set(OPT_LIBRARIES ${OPT_LIBRARIES} ${LIBIIO_LIBRARIES})
set(OPT_DRIVER_INCLUDE_DIRS ${OPT_DRIVER_INCLUDE_DIRS} ${LIBIIO_INCLUDE_DIRS})
endif(ENABLE_AD9361)
if(ENABLE_PLUTOSDR)
##############################################
@ -55,6 +69,16 @@ if(ENABLE_FMCOMMS2)
endif(IIO_FOUND)
endif(ENABLE_FMCOMMS2)
if(ENABLE_AD9361)
###############################################
# AD9361 DIRECT TO FPGA Hardware
###############################################
if(LIBIIO_FOUND)
set(OPT_DRIVER_SOURCES ${OPT_DRIVER_SOURCES} ad9361_fpga_signal_source.cc)
endif(LIBIIO_FOUND)
endif(ENABLE_AD9361)
if(ENABLE_GN3S)
##############################################

299
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc Normal file
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@ -0,0 +1,299 @@
/*!
* \file ad9361_fpga_signal_source.cc
* \brief signal source for Analog Devices front-end AD9361 connected directly to FPGA accelerators.
* This source implements only the AD9361 control. It is NOT compatible with conventional SDR acquisition and tracking blocks.
* Please use the fmcomms2 source if conventional SDR acquisition and tracking is selected in the configuration file.
* \author Javier Arribas, jarribas(at)cttc.es
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2017 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "ad9361_fpga_signal_source.h"
#include "configuration_interface.h"
#include "GPS_L1_CA.h"
#include <signal.h>
#include <stdio.h>
#include <glog/logging.h>
#include <iostream>
#ifdef __APPLE__
#include <iio/iio.h>
#else
#include <iio.h>
#endif
/* RX is input, TX is output */
enum iodev { RX, TX };
/* common RX and TX streaming params */
struct stream_cfg {
long long bw_hz; // Analog banwidth in Hz
long long fs_hz; // Baseband sample rate in Hz
long long lo_hz; // Local oscillator frequency in Hz
const char* rfport; // Port name
};
using google::LogMessage;
/* static scratch mem for strings */
static char tmpstr[64];
/* IIO structs required for streaming */
static struct iio_context *ctx = NULL;
static struct iio_channel *rx0_i = NULL;
static struct iio_channel *rx0_q = NULL;
/* check return value of attr_write function */
static void errchk(int v, const char* what) {
if (v < 0) { fprintf(stderr, "Error %d writing to channel \"%s\"\nvalue may not be supported.\n", v, what); }
}
/* write attribute: long long int */
static void wr_ch_lli(struct iio_channel *chn, const char* what, long long val)
{
errchk(iio_channel_attr_write_longlong(chn, what, val), what);
}
/* write attribute: string */
static void wr_ch_str(struct iio_channel *chn, const char* what, const char* str)
{
errchk(iio_channel_attr_write(chn, what, str), what);
}
/* helper function generating channel names */
static char* get_ch_name(const char* type, int id)
{
snprintf(tmpstr, sizeof(tmpstr), "%s%d", type, id);
return tmpstr;
}
/* returns ad9361 phy device */
static struct iio_device* get_ad9361_phy(struct iio_context *ctx)
{
struct iio_device *dev = iio_context_find_device(ctx, "ad9361-phy");
return dev;
}
/* finds AD9361 streaming IIO devices */
static bool get_ad9361_stream_dev(struct iio_context *ctx, enum iodev d, struct iio_device **dev)
{
switch (d) {
case TX: *dev = iio_context_find_device(ctx, "cf-ad9361-dds-core-lpc"); return *dev != NULL;
case RX: *dev = iio_context_find_device(ctx, "cf-ad9361-lpc"); return *dev != NULL;
default: return false;
}
}
/* finds AD9361 streaming IIO channels */
static bool get_ad9361_stream_ch(struct iio_context *ctx, enum iodev d, struct iio_device *dev, int chid, struct iio_channel **chn)
{
*chn = iio_device_find_channel(dev, get_ch_name("voltage", chid), d == TX);
if (!*chn)
*chn = iio_device_find_channel(dev, get_ch_name("altvoltage", chid), d == TX);
return *chn != NULL;
}
/* finds AD9361 phy IIO configuration channel with id chid */
static bool get_phy_chan(struct iio_context *ctx, enum iodev d, int chid, struct iio_channel **chn)
{
switch (d) {
case RX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("voltage", chid), false); return *chn != NULL;
case TX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("voltage", chid), true); return *chn != NULL;
default: return false;
}
}
/* finds AD9361 local oscillator IIO configuration channels */
static bool get_lo_chan(struct iio_context *ctx, enum iodev d, struct iio_channel **chn)
{
switch (d) {
// LO chan is always output, i.e. true
case RX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("altvoltage", 0), true); return *chn != NULL;
case TX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("altvoltage", 1), true); return *chn != NULL;
default: return false;
}
}
/* applies streaming configuration through IIO */
bool cfg_ad9361_streaming_ch(struct iio_context *ctx, struct stream_cfg *cfg, enum iodev type, int chid)
{
struct iio_channel *chn = NULL;
// Configure phy and lo channels
printf("* Acquiring AD9361 phy channel %d\n", chid);
if (!get_phy_chan(ctx, type, chid, &chn)) { return false; }
wr_ch_str(chn, "rf_port_select", cfg->rfport);
wr_ch_lli(chn, "rf_bandwidth", cfg->bw_hz);
wr_ch_lli(chn, "sampling_frequency", cfg->fs_hz);
// Configure LO channel
printf("* Acquiring AD9361 %s lo channel\n", type == TX ? "TX" : "RX");
if (!get_lo_chan(ctx, type, &chn)) { return false; }
wr_ch_lli(chn, "frequency", cfg->lo_hz);
return true;
}
Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream, unsigned int out_stream,
boost::shared_ptr<gr::msg_queue> queue) :
role_(role), in_stream_(in_stream), out_stream_(out_stream),
queue_(queue)
{
std::string default_item_type = "gr_complex";
std::string default_dump_file = "./data/signal_source.dat";
uri_ = configuration->property(role + ".device_address", std::string("192.168.2.1"));
freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);
sample_rate_ = configuration->property(role + ".sampling_frequency", 2600000);
bandwidth_ = configuration->property(role + ".bandwidth", 2000000);
rx1_en_ = configuration->property(role + ".rx1_enable", true);
rx2_en_ = configuration->property(role + ".rx2_enable", false);
buffer_size_ = configuration->property(role + ".buffer_size", 0xA0000);
quadrature_ = configuration->property(role + ".quadrature", true);
rf_dc_ = configuration->property(role + ".rf_dc", true);
bb_dc_ = configuration->property(role + ".bb_dc", true);
gain_mode_rx1_ = configuration->property(role + ".gain_mode_rx1", std::string("manual"));
gain_mode_rx2_ = configuration->property(role + ".gain_mode_rx2", std::string("manual"));
rf_gain_rx1_ = configuration->property(role + ".gain_rx1", 64.0);
rf_gain_rx2_ = configuration->property(role + ".gain_rx2", 64.0);
rf_port_select_ = configuration->property(role + ".rf_port_select", std::string("A_BALANCED"));
filter_file_ = configuration->property(role + ".filter_file", std::string(""));
filter_auto_ = configuration->property(role + ".filter_auto", true);
item_type_ = configuration->property(role + ".item_type", default_item_type);
samples_ = configuration->property(role + ".samples", 0);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_file);
item_size_ = sizeof(gr_complex);
std::cout << "device address: " << uri_ << std::endl;
std::cout << "LO frequency : " << freq_ << " Hz" << std::endl;
std::cout << "sample rate: " << sample_rate_ << " Hz" << std::endl;
// AD9361 Frontend IC device operation
// Streaming devices
struct iio_device *rx;
// RX stream config
// Stream configurations
struct stream_cfg rxcfg;
rxcfg.bw_hz = bandwidth_; // 2 MHz rf bandwidth
rxcfg.fs_hz = sample_rate_; // 2.5 MS/s rx sample rate
rxcfg.lo_hz = freq_; // 2.5 GHz rf frequency
rxcfg.rfport = rf_port_select_.c_str(); // port A (select for rf freq.)
std::cout<<"AD9361 Acquiring IIO context\n";
ctx = iio_create_default_context();
if (!ctx)
{
std::cout<<"No context\n";
throw std::runtime_error("AD9361 IIO No context");
}
if (iio_context_get_devices_count(ctx) <= 0)
{
std::cout<<"No devices\n";
throw std::runtime_error("AD9361 IIO No devices");
}
std::cout<<"* Acquiring AD9361 streaming devices\n";
if(!get_ad9361_stream_dev(ctx, RX, &rx))
{
std::cout<<"No rx dev found\n";
throw std::runtime_error("AD9361 IIO No rx dev found");
};
std::cout<<"* Configuring AD9361 for streaming\n";
if (!cfg_ad9361_streaming_ch(ctx, &rxcfg, RX, 0))
{
std::cout<<"RX port 0 not found\n";
throw std::runtime_error("AD9361 IIO RX port 0 not found");
}
std::cout<<"* Initializing AD9361 IIO streaming channels\n";
if (!get_ad9361_stream_ch(ctx, RX, rx, 0, &rx0_i))
{
std::cout<<"RX chan i not found\n";
throw std::runtime_error("RX chan i not found");
}
if (!get_ad9361_stream_ch(ctx, RX, rx, 1, &rx0_q))
{
std::cout<<"RX chan q not found\n";
throw std::runtime_error("RX chan q not found");
}
std::cout<<"* Enabling IIO streaming channels\n";
iio_channel_enable(rx0_i);
iio_channel_enable(rx0_q);
}
Ad9361FpgaSignalSource::~Ad9361FpgaSignalSource()
{
/* cleanup and exit */
std::cout<<"* AD9361 Disabling streaming channels\n";
if (rx0_i) { iio_channel_disable(rx0_i); }
if (rx0_q) { iio_channel_disable(rx0_q); }
std::cout<<"* AD9361 Destroying context\n";
if (ctx) { iio_context_destroy(ctx); }
}
void Ad9361FpgaSignalSource::connect(gr::top_block_sptr top_block)
{
DLOG(INFO) << "AD9361 FPGA source nothing to connect";
}
void Ad9361FpgaSignalSource::disconnect(gr::top_block_sptr top_block)
{
DLOG(INFO) << "AD9361 FPGA source nothing to disconnect";
}
gr::basic_block_sptr Ad9361FpgaSignalSource::get_left_block()
{
LOG(WARNING) << "Trying to get signal source left block.";
return gr::basic_block_sptr();
}
gr::basic_block_sptr Ad9361FpgaSignalSource::get_right_block()
{
LOG(WARNING) << "Trying to get AD9361 FPGA signal source right block.";
return gr::basic_block_sptr();
}

109
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h Normal file
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@ -0,0 +1,109 @@
/*!
* \file ad9361_fpga_signal_source.h
* \brief signal source for Analog Devices front-end AD9361 connected directly to FPGA accelerators.
* This source implements only the AD9361 control. It is NOT compatible with conventional SDR acquisition and tracking blocks.
* Please use the fmcomms2 source if conventional SDR acquisition and tracking is selected in the configuration file.
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2017 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_AD9361_FPGA_SIGNAL_SOURCE_H_
#define GNSS_SDR_AD9361_FPGA_SIGNAL_SOURCE_H_
#include "gnss_block_interface.h"
#include <boost/shared_ptr.hpp>
#include <gnuradio/msg_queue.h>
#include <string>
class ConfigurationInterface;
class Ad9361FpgaSignalSource: public GNSSBlockInterface
{
public:
Ad9361FpgaSignalSource(ConfigurationInterface* configuration,
std::string role, unsigned int in_stream,
unsigned int out_stream, boost::shared_ptr<gr::msg_queue> queue);
virtual ~Ad9361FpgaSignalSource();
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Ad9361_Fpga_Signal_Source"
*/
inline std::string implementation() override
{
return "Ad9361_Fpga_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
private:
std::string role_;
// Front-end settings
std::string uri_;//device direction
unsigned long freq_; //frequency of local oscilator
unsigned long sample_rate_;
unsigned long bandwidth_;
unsigned long buffer_size_; //reception buffer
bool rx1_en_;
bool rx2_en_;
bool quadrature_;
bool rf_dc_;
bool bb_dc_;
std::string gain_mode_rx1_;
std::string gain_mode_rx2_;
double rf_gain_rx1_;
double rf_gain_rx2_;
std::string rf_port_select_;
std::string filter_file_;
bool filter_auto_;
unsigned int in_stream_;
unsigned int out_stream_;
std::string item_type_;
size_t item_size_;
long samples_;
bool dump_;
std::string dump_filename_;
boost::shared_ptr<gr::msg_queue> queue_;
};
#endif /*GNSS_SDR_AD9361_FPGA_SIGNAL_SOURCE_H_*/

5
src/core/receiver/CMakeLists.txt
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@ -90,6 +90,11 @@ if(ENABLE_FMCOMMS2)
set(OPT_RECEIVER_INCLUDE_DIRS ${OPT_RECEIVER_INCLUDE_DIRS} ${IIO_INCLUDE_DIRS})
endif(ENABLE_FMCOMMS2)
if(ENABLE_AD9361)
add_definitions(-DAD9361_DRIVER=1)
set(OPT_RECEIVER_INCLUDE_DIRS ${OPT_RECEIVER_INCLUDE_DIRS} ${IIO_INCLUDE_DIRS})
endif(ENABLE_AD9361)
if(${PC_GNURADIO_RUNTIME_VERSION} VERSION_GREATER "3.7.13" )
add_definitions( -DGR_GREATER_38=1 )
endif(${PC_GNURADIO_RUNTIME_VERSION} VERSION_GREATER "3.7.13" )

13
src/core/receiver/gnss_block_factory.cc
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@ -132,6 +132,10 @@
#include "fmcomms2_signal_source.h"
#endif
#if AD9361_DRIVER
#include "ad9361_fpga_signal_source.h"
#endif
#if FLEXIBAND_DRIVER
#include "flexiband_signal_source.h"
#endif
@ -1080,6 +1084,15 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock(
}
#endif
#if AD9361_DRIVER
else if (implementation.compare("Ad9361_Fpga_Signal_Source") == 0)
{
std::unique_ptr<GNSSBlockInterface> block_(new Ad9361FpgaSignalSource(configuration.get(), role, in_streams,
out_streams, queue));
block = std::move(block_);
}
#endif
#if FLEXIBAND_DRIVER
else if (implementation.compare("Flexiband_Signal_Source") == 0)
{