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Merge branch 'fix_FPGA_post_processing_mode' of https://github.com/mmajoral/gnss-sdr into mmajoral-fix_FPGA_post_processing_mode

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This commit is contained in:
Carles Fernandez
2021-02-22 18:52:37 +01:00
parent ffef0ca126 79c968f279
commit 489da500a1
4 changed files with 417 additions and 216 deletions
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599
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
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@@ -23,6 +23,7 @@
#include "GPS_L1_CA.h"
#include "GPS_L5.h"
#include "ad9361_manager.h"
#include "command_event.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_string_literals.h"
@@ -35,6 +36,7 @@
#include <exception> // for exceptions
#include <fcntl.h> // for open, O_WRONLY
#include <fstream> // for std::ifstream
#include <iomanip> // for std::setprecision
#include <iostream> // for cout
#include <string> // for string manipulation
#include <thread> // for std::chrono
@@ -48,8 +50,10 @@ using namespace std::string_literals;
Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *configuration,
const std::string &role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t> *queue __attribute__((unused)))
: SignalSourceBase(configuration, role, "Ad9361_Fpga_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
: SignalSourceBase(configuration, role, "Ad9361_Fpga_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream), queue_(queue)
{
// initialize the variables that are used in real-time mode
const std::string default_gain_mode("slow_attack");
const double default_tx_attenuation_db = -10.0;
const double default_manual_gain_rx1 = 64.0;
@@ -93,13 +97,79 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
rf_shutdown_ = configuration->property(role + ".rf_shutdown", FLAGS_rf_shutdown);
// Switch UIO device file
std::string device_io_name;
// initialize the variables that are used in post-processing mode
enable_DMA_ = false;
const int l1_band = configuration->property("Channels_1C.count", 0) +
configuration->property("Channels_1B.count", 0);
// by default the DMA transfers samples corresponding to two frequency bands to the FPGA
num_freq_bands_ = 2;
dma_buff_offset_pos_ = 0;
// if only one input file is specified in the configuration file then:
// if there is at least one channel assigned to frequency band 1 then the DMA transfers the samples to the L1 frequency band channels
// otherwise the DMA transfers the samples to the L2/L5 frequency band channels
if (filename1.empty())
{
num_freq_bands_ = 1;
if (l1_band != 0)
{
dma_buff_offset_pos_ = 2;
}
}
const double default_seconds_to_skip = 0.0;
const std::string empty_string;
filename0 = configuration->property(role + ".filename", empty_string);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename0 = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename0 = FLAGS_s;
}
if (filename0.empty())
{
filename0 = configuration->property(role + ".filename0", empty_string);
filename1 = configuration->property(role + ".filename1", empty_string);
}
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
const double seconds_to_skip = configuration->property(role + ".seconds_to_skip", default_seconds_to_skip);
const size_t header_size = configuration->property(role + ".header_size", 0);
std::string item_type = "ibyte"; // for now only the ibyte format is supported
item_size_ = sizeof(int8_t);
repeat_ = configuration->property(role + ".repeat", false);
if (seconds_to_skip > 0)
{
samples_to_skip_ = static_cast<int64_t>(seconds_to_skip * sample_rate_) * 2;
}
if (header_size > 0)
{
samples_to_skip_ += header_size;
}
// check the switch status (determines real-time mode or post-processing mode)
std::string device_io_name; // Switch UIO device file
// find the uio device file corresponding to the switch.
if (find_uio_dev_file_name(device_io_name, switch_device_name, 0) < 0)
{
std::cout << "Cannot find the FPGA uio device file corresponding to device name " << switch_device_name << std::endl;
throw std::exception();
std::cerr << "Cannot find the FPGA uio device file corresponding to device name " << switch_device_name << std::endl;
LOG(ERROR) << "Cannot find the FPGA uio device file corresponding to device name " << switch_device_name;
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
switch_position_ = configuration->property(role + ".switch_position", 0);
@@ -113,55 +183,106 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
switch_fpga = std::make_shared<Fpga_Switch>(device_io_name);
switch_fpga->set_switch_position(switch_position_);
item_size_ = sizeof(gr_complex);
std::cout << "Sample rate: " << sample_rate_ << " Sps\n";
enable_ovf_check_buffer_monitor_active_ = false; // check buffer overflow and buffer monitor disabled by default
if (switch_position_ == 0) // Inject file(s) via DMA
{
enable_DMA_ = true;
const std::string empty_string;
filename_rx1 = configuration->property(role + ".filename", empty_string);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
if (samples_ == 0) // read all file
{
filename_rx1 = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_rx1 = FLAGS_s;
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename0.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
DLOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size_));
}
else
{
std::cerr << "file_signal_source: Unable to open the samples file " << filename0.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename0.c_str();
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename0 << ", which contains " << static_cast<double>(size) << " [bytes]\n";
std::cout.precision(ss);
if (size > 0)
{
const int64_t bytes_to_skip = samples_to_skip_ * item_size_;
const int64_t bytes_to_process = static_cast<int64_t>(size) - bytes_to_skip;
samples_ = floor(static_cast<double>(bytes_to_process) / static_cast<double>(item_size_) - ceil(0.002 * static_cast<double>(sample_rate_))); // process all the samples available in the file excluding at least the last 1 ms
}
if (!filename1.empty())
{
std::ifstream file(filename1.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
DLOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size_));
}
else
{
std::cerr << "file_signal_source: Unable to open the samples file " << filename1.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename1.c_str();
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename1 << ", which contains " << static_cast<double>(size) << " [bytes]\n";
std::cout.precision(ss);
uint64_t samples_rx2 = 0;
if (size > 0)
{
const int64_t bytes_to_skip = samples_to_skip_ * item_size_;
const int64_t bytes_to_process = static_cast<int64_t>(size) - bytes_to_skip;
samples_rx2 = floor(static_cast<double>(bytes_to_process) / static_cast<double>(item_size_) - ceil(0.002 * static_cast<double>(sample_rate_))); // process all the samples available in the file excluding at least the last 1 ms
}
samples_ = std::min(samples_, samples_rx2);
}
}
if (filename_rx1.empty())
{
filename_rx1 = configuration->property(role + ".filename0", empty_string);
filename_rx2 = configuration->property(role + ".filename1", empty_string);
}
const int l1_band = configuration->property("Channels_1C.count", 0) +
configuration->property("Channels_1B.count", 0);
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
double signal_duration_s = (static_cast<double>(samples_) * (1 / static_cast<double>(sample_rate_))) / 2.0;
const int l2_band = configuration->property("Channels_L5.count", 0) +
configuration->property("Channels_5X.count", 0) +
configuration->property("Channels_2S.count", 0);
DLOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
if (l1_band != 0)
if (filename1.empty())
{
freq_band = "L1";
DLOG(INFO) << "File source filename " << filename0;
}
if (l2_band != 0 && l1_band == 0)
else
{
freq_band = "L2";
}
if (l1_band != 0 && l2_band != 0)
{
freq_band = "L1L2";
DLOG(INFO) << "File source filename rx1 " << filename0;
DLOG(INFO) << "File source filename rx2 " << filename1;
}
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sample_rate_;
DLOG(INFO) << "Item type " << item_type;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
}
if (switch_position_ == 2) // Real-time via AD9361
{
std::cout << "Sample rate: " << sample_rate_ << " Sps\n";
enable_ovf_check_buffer_monitor_active_ = false; // check buffer overflow and buffer monitor disabled by default
// some basic checks
if ((rf_port_select_ != "A_BALANCED") and (rf_port_select_ != "B_BALANCED") and (rf_port_select_ != "A_N") and (rf_port_select_ != "B_N") and (rf_port_select_ != "B_P") and (rf_port_select_ != "C_N") and (rf_port_select_ != "C_P") and (rf_port_select_ != "TX_MONITOR1") and (rf_port_select_ != "TX_MONITOR2") and (rf_port_select_ != "TX_MONITOR1_2"))
{
@@ -262,7 +383,10 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
}
catch (const std::runtime_error &e)
{
std::cout << "Exception cached when configuring the RX chain: " << e.what() << '\n';
std::cerr << "Exception cached when configuring the RX chain: " << e.what() << '\n';
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
// LOCAL OSCILLATOR DDS GENERATOR FOR DUAL FREQUENCY OPERATION
if (enable_dds_lo_ == true)
@@ -295,7 +419,10 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
}
catch (const std::runtime_error &e)
{
std::cout << "Exception cached when configuring the TX carrier: " << e.what() << '\n';
std::cerr << "Exception cached when configuring the TX carrier: " << e.what() << '\n';
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
}
@@ -311,12 +438,14 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
// find the uio device file corresponding to the buffer monitor
if (find_uio_dev_file_name(device_io_name_buffer_monitor, buffer_monitor_device_name, 0) < 0)
{
std::cout << "Cannot find the FPGA uio device file corresponding to device name " << buffer_monitor_device_name << std::endl;
throw std::exception();
std::cerr << "Cannot find the FPGA uio device file corresponding to device name " << buffer_monitor_device_name << std::endl;
LOG(ERROR) << "Cannot find the FPGA uio device file corresponding to device name " << buffer_monitor_device_name;
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
uint32_t num_freq_bands = (freq_band.compare("L1L2")) ? 1 : 2;
buffer_monitor_fpga = std::make_shared<Fpga_buffer_monitor>(device_io_name_buffer_monitor, num_freq_bands, dump_, dump_filename);
buffer_monitor_fpga = std::make_shared<Fpga_buffer_monitor>(device_io_name_buffer_monitor, num_freq_bands_, dump_, dump_filename);
thread_buffer_monitor = std::thread([&] { run_buffer_monitor_process(); });
}
@@ -329,15 +458,21 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *con
// find the uio device file corresponding to the dynamic bit selector 0 module.
if (find_uio_dev_file_name(device_io_name_dyn_bit_sel_0, dyn_bit_sel_device_name, 0) < 0)
{
std::cout << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name << std::endl;
throw std::exception();
std::cerr << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name << std::endl;
LOG(ERROR) << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name;
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
// find the uio device file corresponding to the dynamic bit selector 1 module.
if (find_uio_dev_file_name(device_io_name_dyn_bit_sel_1, dyn_bit_sel_device_name, 1) < 0)
{
std::cout << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name << std::endl;
throw std::exception();
std::cerr << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name << std::endl;
LOG(ERROR) << "Cannot find the FPGA uio device file corresponding to device name " << dyn_bit_sel_device_name;
// stop the receiver
queue_->push(pmt::make_any(command_event_make(200, 0)));
return;
}
dynamic_bit_selection_fpga = std::make_shared<Fpga_dynamic_bit_selection>(device_io_name_dyn_bit_sel_0, device_io_name_dyn_bit_sel_1);
thread_dynamic_bit_selection = std::thread([&] { run_dynamic_bit_selection_process(); });
@@ -420,200 +555,181 @@ Ad9361FpgaSignalSource::~Ad9361FpgaSignalSource()
void Ad9361FpgaSignalSource::start()
{
thread_file_to_dma = std::thread([&] { run_DMA_process(freq_band, filename_rx1, filename_rx2); });
thread_file_to_dma = std::thread([&] { run_DMA_process(filename0, filename1, samples_to_skip_, item_size_, samples_, repeat_, dma_buff_offset_pos_, queue_); });
}
void Ad9361FpgaSignalSource::run_DMA_process(const std::string &FreqBand, const std::string &Filename1, const std::string &Filename2)
void Ad9361FpgaSignalSource::run_DMA_process(const std::string &filename0, const std::string &filename1, uint64_t &samples_to_skip, size_t &item_size, uint64_t &samples, bool &repeat, uint32_t &dma_buff_offset_pos, Concurrent_Queue<pmt::pmt_t> *queue)
{
const int MAX_INPUT_SAMPLES_TOTAL = 16384;
int max_value = 0;
std::ifstream infile1;
infile1.exceptions(std::ifstream::failbit | std::ifstream::badbit);
// open the files
try
{
infile1.open(Filename1, std::ios::binary);
infile1.open(filename0, std::ios::binary);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception opening file " << Filename1 << '\n';
std::cerr << "Exception opening file " << filename0;
LOG(ERROR) << "Exception opening file " << filename0;
// stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
return;
}
std::ifstream infile2;
infile2.exceptions(std::ifstream::failbit | std::ifstream::badbit);
if (!filename1.empty())
{
infile2.exceptions(std::ifstream::failbit | std::ifstream::badbit);
try
{
infile2.open(filename1, std::ios::binary);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception opening file " << filename1;
LOG(ERROR) << "Exception opening file " << filename1;
// stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
return;
}
}
// skip the initial samples if needed
uint64_t bytes_to_skeep = samples_to_skip * item_size;
try
{
infile2.open(Filename2, std::ios::binary);
infile1.ignore(bytes_to_skeep);
}
catch (const std::ifstream::failure &e)
{
// could not exist
}
// rx signal
std::vector<int8_t> input_samples(MAX_INPUT_SAMPLES_TOTAL * 2);
std::vector<int8_t> input_samples2(MAX_INPUT_SAMPLES_TOTAL * 2);
std::vector<int8_t> input_samples_dma(MAX_INPUT_SAMPLES_TOTAL * 2 * 2);
int nread_elements = 0; // num bytes read from the file corresponding to frequency band 1
int nread_elements2 = 0; // num bytes read from the file corresponding to frequency band 2
int file_completed = 0;
int num_transferred_bytes;
//**************************************************************************
// Open DMA device
//**************************************************************************
const int tx_fd = open("/dev/loop_tx", O_WRONLY);
if (tx_fd < 0)
{
std::cout << "Cannot open loop device\n";
std::cerr << "Exception skipping initial samples file " << filename0 << '\n';
LOG(ERROR) << "Exception skipping initial samples file " << filename0;
// stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
return;
}
//**************************************************************************
// Open input file
//**************************************************************************
int nsamples = 0;
while (file_completed == 0)
if (!filename1.empty())
{
unsigned int dma_index = 0;
if (FreqBand == "L1")
try
{
try
{
infile1.read(reinterpret_cast<char *>(input_samples.data()), MAX_INPUT_SAMPLES_TOTAL * 2);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << Filename1 << '\n';
}
if (infile1)
{
nread_elements = MAX_INPUT_SAMPLES_TOTAL * 2;
}
else
{
nread_elements = infile1.gcount();
}
nsamples += (nread_elements / 2);
for (int index0 = 0; index0 < (nread_elements); index0 += 2)
{
// channel 1 (queue 1)
input_samples_dma[dma_index] = 0;
input_samples_dma[dma_index + 1] = 0;
// channel 0 (queue 0)
input_samples_dma[dma_index + 2] = input_samples[index0];
input_samples_dma[dma_index + 3] = input_samples[index0 + 1];
dma_index += 4;
}
infile2.ignore(bytes_to_skeep);
}
else if (FreqBand == "L2")
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception skipping initial samples file " << filename1 << '\n';
LOG(ERROR) << "Exception skipping initial samples file " << filename1;
// stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
return;
}
}
// rx signal vectors
std::vector<int8_t> input_samples(sample_block_size * 2); // complex samples
std::vector<int8_t> input_samples_dma(sample_block_size * 4); // complex samples, two frequency bands
int nread_elements = 0; // num bytes read from the file corresponding to frequency band 1
bool run_DMA = true;
int num_transferred_bytes;
// Open DMA device
const int tx_fd = open("/dev/loop_tx", O_WRONLY);
if (tx_fd < 0)
{
std::cerr << "Cannot open loop device\n";
LOG(ERROR) << "Cannot open loop device";
// stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
return;
}
// if only one frequency band is used then clear the samples corresponding to the unused frequency band
uint32_t dma_index = 0;
if (num_freq_bands_ == 1)
{
// if only one file is enabled then clear the samples corresponding to the frequency band that is not used.
for (int index0 = 0; index0 < (nread_elements); index0 += 2)
{
input_samples_dma[dma_index + (2 - dma_buff_offset_pos)] = 0;
input_samples_dma[dma_index + 1 + (2 - dma_buff_offset_pos)] = 0;
dma_index += 4;
}
}
uint64_t nbytes_remaining = samples * item_size;
uint32_t read_buffer_size = sample_block_size * 2; // complex samples
// run the DMA
while (run_DMA)
{
if (nbytes_remaining < read_buffer_size)
{
read_buffer_size = nbytes_remaining;
}
nbytes_remaining = nbytes_remaining - read_buffer_size;
// read filename 0
try
{
infile1.read(reinterpret_cast<char *>(input_samples.data()), read_buffer_size);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << filename0 << '\n';
LOG(ERROR) << "Exception reading file " << filename0;
break;
}
if (infile1)
{
nread_elements = read_buffer_size;
}
else
{
// FLAG AS ERROR !! IT SHOULD NEVER HAPPEN
nread_elements = infile1.gcount();
}
for (int index0 = 0; index0 < (nread_elements); index0 += 2)
{
// dma_buff_offset_pos is 1 for the L1 band and 0 for the other bands
input_samples_dma[dma_index + dma_buff_offset_pos] = input_samples[index0];
input_samples_dma[dma_index + 1 + dma_buff_offset_pos] = input_samples[index0 + 1];
dma_index += 4;
}
// read filename 1 (if enabled)
dma_index = 0;
if (num_freq_bands_ > 1)
{
try
{
infile1.read(reinterpret_cast<char *>(input_samples.data()), MAX_INPUT_SAMPLES_TOTAL * 2);
infile1.read(reinterpret_cast<char *>(input_samples.data()), read_buffer_size);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << Filename1 << '\n';
std::cerr << "Exception reading file " << filename1 << '\n';
LOG(ERROR) << "Exception reading file " << filename1;
break;
}
if (infile1)
{
nread_elements = MAX_INPUT_SAMPLES_TOTAL * 2;
nread_elements = read_buffer_size;
}
else
{
// FLAG AS ERROR !! IT SHOULD NEVER HAPPEN
nread_elements = infile1.gcount();
}
nsamples += (nread_elements / 2);
for (int index0 = 0; index0 < (nread_elements); index0 += 2)
{
// channel 1 (queue 1)
// filename2 is never the L1 band
input_samples_dma[dma_index] = input_samples[index0];
input_samples_dma[dma_index + 1] = input_samples[index0 + 1];
// channel 0 (queue 0)
input_samples_dma[dma_index + 2] = 0;
input_samples_dma[dma_index + 3] = 0;
dma_index += 4;
}
}
else if (FreqBand == "L1L2")
{
try
{
infile1.read(reinterpret_cast<char *>(input_samples.data()), MAX_INPUT_SAMPLES_TOTAL * 2);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << Filename1 << '\n';
}
if (infile1)
{
nread_elements = MAX_INPUT_SAMPLES_TOTAL * 2;
}
else
{
nread_elements = infile1.gcount();
}
try
{
infile2.read(reinterpret_cast<char *>(input_samples2.data()), MAX_INPUT_SAMPLES_TOTAL * 2);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception reading file " << Filename1 << '\n';
}
if (infile2)
{
nread_elements2 = MAX_INPUT_SAMPLES_TOTAL * 2;
}
else
{
nread_elements2 = infile2.gcount();
}
if (nread_elements > nread_elements2)
{
nread_elements = nread_elements2; // take the smallest
}
nsamples += (nread_elements / 2);
for (int index0 = 0; index0 < (nread_elements); index0 += 2)
{
if (input_samples[index0] > max_value)
{
max_value = input_samples[index0];
}
else if (-input_samples[index0] > max_value)
{
max_value = -input_samples[index0];
}
if (input_samples[index0 + 1] > max_value)
{
max_value = input_samples[index0 + 1];
}
else if (-input_samples[index0 + 1] > max_value)
{
max_value = -input_samples[index0 + 1];
}
// channel 1 (queue 1)
input_samples_dma[dma_index] = input_samples2[index0];
input_samples_dma[dma_index + 1] = input_samples2[index0 + 1];
// channel 0 (queue 0)
input_samples_dma[dma_index + 2] = input_samples[index0];
input_samples_dma[dma_index + 3] = input_samples[index0 + 1];
dma_index += 4;
}
}
@@ -625,21 +741,80 @@ void Ad9361FpgaSignalSource::run_DMA_process(const std::string &FreqBand, const
if (num_bytes_sent != num_transferred_bytes)
{
std::cerr << "Error: DMA could not send all the required samples\n";
LOG(ERROR) << "Error: DMA could not send all the required samples";
break;
}
// Throttle the DMA
std::this_thread::sleep_for(std::chrono::milliseconds(1));
}
if (nread_elements != MAX_INPUT_SAMPLES_TOTAL * 2)
if (nbytes_remaining == 0)
{
file_completed = 1;
}
if (repeat)
{
// read the file again
nbytes_remaining = samples * item_size;
read_buffer_size = sample_block_size * 2;
try
{
infile1.seekg(0);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception resetting the position of the next byte to be extracted to zero " << filename0 << '\n';
LOG(ERROR) << "Exception resetting the position of the next byte to be extracted to zero " << filename0;
break;
}
// skip the initial samples if needed
uint64_t bytes_to_skeep = samples_to_skip * item_size;
try
{
infile1.ignore(bytes_to_skeep);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception skipping initial samples file " << filename0 << '\n';
LOG(ERROR) << "Exception skipping initial samples file " << filename0;
break;
}
if (!filename1.empty())
{
try
{
infile2.seekg(0);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception setting the position of the next byte to be extracted to zero " << filename1 << '\n';
LOG(ERROR) << "Exception resetting the position of the next byte to be extracted to zero " << filename1;
break;
}
try
{
infile2.ignore(bytes_to_skeep);
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception skipping initial samples file " << filename1 << '\n';
LOG(ERROR) << "Exception skipping initial samples file " << filename1;
break;
}
}
}
else
{
// the input file is completely processed. Stop the receiver.
run_DMA = false;
}
}
std::unique_lock<std::mutex> lock(dma_mutex);
if (enable_DMA_ == false)
{
file_completed = true;
run_DMA = false;
}
lock.unlock();
}
@@ -647,20 +822,34 @@ void Ad9361FpgaSignalSource::run_DMA_process(const std::string &FreqBand, const
if (close(tx_fd) < 0)
{
std::cerr << "Error closing loop device " << '\n';
LOG(ERROR) << "Error closing loop device " << std::endl;
}
try
{
infile1.close();
if (FreqBand == "L1L2")
{
infile2.close();
}
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception closing files " << Filename1 << " and " << Filename2 << '\n';
std::cerr << "Exception closing file " << filename0 << '\n';
LOG(ERROR) << "Exception closing file " << filename0 << std::endl;
}
if (num_freq_bands_ > 1)
{
try
{
infile2.close();
}
catch (const std::ifstream::failure &e)
{
std::cerr << "Exception closing file " << filename1 << '\n';
LOG(ERROR) << "Exception closing file " << filename1 << std::endl;
}
}
// Stop the receiver
queue->push(pmt::make_any(command_event_make(200, 0)));
}

27
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
View File

@@ -72,10 +72,17 @@ private:
static const uint32_t buffer_monitor_period_ms = 1000;
// buffer overflow and buffer monitoring initial delay
static const uint32_t buffer_monitoring_initial_delay_ms = 2000;
// sample block size when running in post-processing mode
static const int sample_block_size = 16384;
void run_DMA_process(const std::string &FreqBand,
const std::string &Filename1,
const std::string &Filename2);
void run_DMA_process(const std::string &Filename1,
const std::string &Filename2,
uint64_t &samples_to_skip,
size_t &item_size,
uint64_t &samples,
bool &repeat,
uint32_t &dma_buff_offset_pos,
Concurrent_Queue<pmt::pmt_t> *queue);
void run_dynamic_bit_selection_process();
void run_buffer_monitor_process();
@@ -95,9 +102,8 @@ private:
std::string filter_file_;
std::string filter_source_;
std::string filter_filename_;
std::string filename_rx1;
std::string filename_rx2;
std::string freq_band;
std::string filename0;
std::string filename1;
std::mutex dma_mutex;
std::mutex dynamic_bit_selection_mutex;
@@ -136,6 +142,15 @@ private:
bool enable_ovf_check_buffer_monitor_;
bool dump_;
bool rf_shutdown_;
// post-processing mode
uint64_t samples_;
uint64_t samples_to_skip_;
bool repeat_;
uint32_t num_freq_bands_;
uint32_t dma_buff_offset_pos_;
Concurrent_Queue<pmt::pmt_t> *queue_;
};

1
src/algorithms/signal_source/libs/fpga_buffer_monitor.cc
View File

@@ -23,7 +23,6 @@
*/
#include "fpga_buffer_monitor.h"
#include "command_event.h"
#include "gnss_sdr_create_directory.h"
#include "gnss_sdr_filesystem.h"
#include <glog/logging.h>

6
src/algorithms/signal_source/libs/fpga_buffer_monitor.h
View File

@@ -25,10 +25,8 @@
#ifndef GNSS_SDR_FPGA_BUFFER_MONITOR_H
#define GNSS_SDR_FPGA_BUFFER_MONITOR_H
#include "concurrent_queue.h"
#include <pmt/pmt.h> // pmt
#include <cstdint> // for int32_t
#include <fstream> // for string, ofstream
#include <cstdint> // for int32_t
#include <fstream> // for string, ofstream
/** \addtogroup Signal_Source
* \{ */