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Merge branch 'mmajoral-file_dma_fix' into file_dma

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This commit is contained in:
Carles Fernandez 2019-10-02 00:17:35 +02:00
commit 344f29231a
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GPG Key ID: 4C583C52B0C3877D
3 changed files with 31 additions and 23 deletions
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31
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
View File

@ -37,18 +37,17 @@
#include "configuration_interface.h"
#include <glog/logging.h>
#include <iio.h>
#include <cassert> // for assert
#include <exception>
#include <fcntl.h> // for open, O_WRONLY
#include <fstream> // for std::ifstream
#include <iostream> // for cout, endl
#include <string>
#include <string> // for string manipulation
#include <unistd.h> // for write
#include <utility>
#include <vector>
void run_DMA_process(const std::string &FreqBand, const std::string &Filename1, const std::string &Filename2)
void run_DMA_process(const std::string &FreqBand, const std::string &Filename1, const std::string &Filename2, const bool &enable_DMA)
{
const int MAX_INPUT_SAMPLES_TOTAL = 8192;
int max_value = 0;
@ -102,7 +101,7 @@ void run_DMA_process(const std::string &FreqBand, const std::string &Filename1,
//**************************************************************************
int nsamples = 0;
while (file_completed == 0)
while ((file_completed == 0) && (enable_DMA == true))
{
unsigned int dma_index = 0;
@ -249,8 +248,11 @@ void run_DMA_process(const std::string &FreqBand, const std::string &Filename1,
if (nread_elements > 0)
{
num_transferred_bytes = nread_elements * 2;
assert(num_transferred_bytes ==
write(tx_fd, input_samples_dma.data(), nread_elements * 2));
int num_bytes_sent = write(tx_fd, input_samples_dma.data(), nread_elements * 2);
if (num_bytes_sent != num_transferred_bytes)
{
std::cerr << "Error: DMA could not send all the required samples " << std::endl;
}
}
if (nread_elements != MAX_INPUT_SAMPLES_TOTAL * 2)
@ -316,18 +318,16 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
if (switch_position == 0) // Inject file(s) via DMA
{
enable_DMA_ = true;
std::string empty_string;
filename_rx1 = configuration->property(role + ".filename_rx1", empty_string);
filename_rx2 = configuration->property(role + ".filename_rx2", empty_string);
int l1_band = configuration->property("Channels_1C.count", 0) +
configuration->property("Channels_1B.count", 0) +
configuration->property("Channels_L5.count", 0) +
configuration->property("Channels_2S.count", 0) +
configuration->property("Channels_5X.count", 0);
configuration->property("Channels_1B.count", 0);
int l2_band = configuration->property("Channels_L5.count", 0) * configuration->property("Channels_1C.count", 0) +
configuration->property("Channels_5X.count", 0) * configuration->property("Channels_1B.count", 0) +
configuration->property("Channels_2S.count", 0) * configuration->property("Channels_1C.count", 0);
int l2_band = configuration->property("Channels_L5.count", 0) +
configuration->property("Channels_5X.count", 0) +
configuration->property("Channels_2S.count", 0);
if (l1_band != 0)
{
@ -342,7 +342,7 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
freq_band = "L1L2";
}
thread_file_to_dma = std::thread([&] { run_DMA_process(freq_band, filename_rx1, filename_rx2); });
thread_file_to_dma = std::thread([&] { run_DMA_process(freq_band, filename_rx1, filename_rx2, enable_DMA_); });
}
if (switch_position == 2) // Real-time via AD9361
{
@ -385,10 +385,13 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
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); }
enable_DMA_ = false; // disable the DMA
if (enable_dds_lo_)
{
try

2
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
View File

@ -122,6 +122,8 @@ private:
std::string filename_rx1;
std::string filename_rx2;
std::string freq_band;
bool enable_DMA_;
};
#endif // GNSS_SDR_AD9361_FPGA_SIGNAL_SOURCE_H_

21
src/core/receiver/gnss_block_factory.cc
View File

@ -1446,15 +1446,6 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock(
}
#endif
#if AD9361_DRIVER
else if (implementation == "Ad9361_Fpga_Signal_Source")
{
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 == "Flexiband_Signal_Source")
{
@ -1927,6 +1918,18 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock(
out_streams));
block = std::move(block_);
}
#if AD9361_DRIVER
// The AD9361_DRIVER Driver is instantiated last. In this way, when using the FPGA, and when using the GNSS receiver
// in post-processing mode, the receiver is configured and ready when the DMA starts sending samples to the receiver.
else if (implementation == "Ad9361_Fpga_Signal_Source")
{
std::unique_ptr<GNSSBlockInterface> block_(new Ad9361FpgaSignalSource(configuration.get(), role, in_streams,
out_streams, queue));
block = std::move(block_);
}
#endif
else
{
// Log fatal. This causes execution to stop.