Add RX time counter

src/algorithms/libs/CMakeLists.txt

@@ -18,6 +18,30 @@
 
 add_subdirectory(rtklib)
 
+if(ENABLE_FPGA)
+	set(GNSS_SPLIBS_SOURCES
+		gps_l2c_signal.cc
+		gps_l5_signal.cc
+    	galileo_e1_signal_processing.cc
+    	gnss_sdr_valve.cc
+    	gnss_sdr_sample_counter.cc
+    	gnss_sdr_time_counter.cc
+    	gnss_signal_processing.cc
+    	gps_sdr_signal_processing.cc
+    	glonass_l1_signal_processing.cc
+    	glonass_l2_signal_processing.cc
+    	pass_through.cc
+    	galileo_e5_signal_processing.cc
+    	complex_byte_to_float_x2.cc
+    	byte_x2_to_complex_byte.cc
+    	cshort_to_float_x2.cc
+    	short_x2_to_cshort.cc
+    	complex_float_to_complex_byte.cc
+    	conjugate_cc.cc
+    	conjugate_sc.cc
+    	conjugate_ic.cc
+	)
+else(ENABLE_FPGA)
 	set(GNSS_SPLIBS_SOURCES
 		gps_l2c_signal.cc
 		gps_l5_signal.cc
@@ -39,6 +63,7 @@ set(GNSS_SPLIBS_SOURCES
     	conjugate_sc.cc
     	conjugate_ic.cc
 	)
+endif(ENABLE_FPGA)
 
 if(OPENCL_FOUND)
     set(GNSS_SPLIBS_SOURCES ${GNSS_SPLIBS_SOURCES}

src/algorithms/libs/gnss_sdr_time_counter.cc

@@ -0,0 +1,126 @@
+/*!
+ * \file gnss_sdr_time_counter.cc
+ * \brief Simple block to report the current receiver time based on the output of the tracking or telemetry blocks
+ * \author Antonio Ramos 2018. antonio.ramos(at)gmail.com
+ *
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2018  (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 "gnss_sdr_time_counter.h"
+#include "gnss_synchro.h"
+#include <gnuradio/io_signature.h>
+#include <cmath>
+#include <iostream>
+#include <string>
+
+gnss_sdr_time_counter::gnss_sdr_time_counter() : gr::block("time_counter",
+                                                     gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)),
+                                                     gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)))
+{
+    set_max_noutput_items(1);
+    current_T_rx_ms = 0;
+    current_s = 0;
+    current_m = 0;
+    current_h = 0;
+    current_days = 0;
+    report_interval_ms = 1000;  // default reporting 1 second
+    flag_m = false;
+    flag_h = false;
+    flag_days = false;
+}
+
+
+gnss_sdr_time_counter_sptr gnss_sdr_make_time_counter()
+{
+    gnss_sdr_time_counter_sptr counter_(new gnss_sdr_time_counter());
+    return counter_;
+}
+
+
+int gnss_sdr_time_counter::general_work(int noutput_items __attribute__((unused)),
+    gr_vector_const_void_star &input_items __attribute__((unused)),
+    gr_vector_void_star &output_items)
+{
+    Gnss_Synchro *out = reinterpret_cast<Gnss_Synchro *>(output_items[0]);
+    const Gnss_Synchro *in = reinterpret_cast<const Gnss_Synchro *>(input_items[0]);
+    out[0] = in[0];
+    if ((current_T_rx_ms % report_interval_ms) == 0)
+        {
+            current_s++;
+            if ((current_s % 60) == 0)
+                {
+                    current_s = 0;
+                    current_m++;
+                    flag_m = true;
+                    if ((current_m % 60) == 0)
+                        {
+                            current_m = 0;
+                            current_h++;
+                            flag_h = true;
+                            if ((current_h % 24) == 0)
+                                {
+                                    current_h = 0;
+                                    current_days++;
+                                    flag_days = true;
+                                }
+                        }
+                }
+
+            if (flag_days)
+                {
+                    std::string day;
+                    if (current_days == 1)
+                        {
+                            day = " day ";
+                        }
+                    else
+                        {
+                            day = " days ";
+                        }
+                    std::cout << "Current receiver time: " << current_days << day << current_h << " h " << current_m << " min " << current_s << " s" << std::endl;
+                }
+            else
+                {
+                    if (flag_h)
+                        {
+                            std::cout << "Current receiver time: " << current_h << " h " << current_m << " min " << current_s << " s" << std::endl;
+                        }
+                    else
+                        {
+                            if (flag_m)
+                                {
+                                    std::cout << "Current receiver time: " << current_m << " min " << current_s << " s" << std::endl;
+                                }
+                            else
+                                {
+                                    std::cout << "Current receiver time: " << current_s << " s" << std::endl;
+                                }
+                        }
+                }
+        }
+    current_T_rx_ms++;
+    return 1;
+}

src/algorithms/libs/gnss_sdr_time_counter.h

@@ -0,0 +1,65 @@
+/*!
+ * \file gnss_sdr_time_counter.h
+ * \brief Simple block to report the current receiver time based on the output of the tracking or telemetry blocks
+ * \author Antonio Ramos 2018. antonio.ramosdet(at)gmail.com
+ *
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2018  (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_TIME_COUNTER_H_
+#define GNSS_SDR_TIME_COUNTER_H_
+
+#include <gnuradio/block.h>
+#include <boost/shared_ptr.hpp>
+
+
+class gnss_sdr_time_counter;
+
+typedef boost::shared_ptr<gnss_sdr_time_counter> gnss_sdr_time_counter_sptr;
+
+gnss_sdr_time_counter_sptr gnss_sdr_make_time_counter();
+
+class gnss_sdr_time_counter : public gr::block
+{
+private:
+    gnss_sdr_time_counter();
+    long long int current_T_rx_ms;  // Receiver time in ms since the beginning of the run
+    unsigned int current_s;         // Receiver time in seconds, modulo 60
+    bool flag_m;                    // True if the receiver has been running for at least 1 minute
+    unsigned int current_m;         // Receiver time in minutes, modulo 60
+    bool flag_h;                    // True if the receiver has been running for at least 1 hour
+    unsigned int current_h;         // Receiver time in hours, modulo 24
+    bool flag_days;                 // True if the receiver has been running for at least 1 day
+    unsigned int current_days;      // Receiver time in days since the beginning of the run
+    int report_interval_ms;
+
+public:
+    friend gnss_sdr_time_counter_sptr gnss_sdr_make_time_counter();
+    int general_work(int noutput_items,
+        gr_vector_const_void_star &input_items,
+        gr_vector_void_star &output_items);
+};
+
+#endif /*GNSS_SDR_SAMPLE_COUNTER_H_*/

src/core/receiver/gnss_flowgraph.cc

@@ -62,8 +62,6 @@ GNSSFlowgraph::GNSSFlowgraph(std::shared_ptr<ConfigurationInterface> configurati
 
 
 GNSSFlowgraph::~GNSSFlowgraph() {}
-
-
 void GNSSFlowgraph::start()
 {
     if (running_)
@@ -257,9 +255,10 @@ void GNSSFlowgraph::connect()
                 }
         }
     DLOG(INFO) << "Signal source connected to signal conditioner";
-
     bool FPGA_enabled = configuration_->property(sig_source_.at(0)->role() + ".enable_FPGA", false);
 
+#if ENABLE_FPGA
+
     if (FPGA_enabled == false)
         {
             //connect the signal source to sample counter
@@ -284,7 +283,9 @@ void GNSSFlowgraph::connect()
                     top_block_->disconnect_all();
                     return;
                 }
-    }else{
+        }
+    else
+        {
             //create a software-defined 1kHz gnss_synchro pulse for the observables block
             try
                 {
@@ -292,9 +293,10 @@ void GNSSFlowgraph::connect()
                     null_source_ = gr::blocks::null_source::make(sizeof(Gnss_Synchro));
                     //throttle 1kHz
                     throttle_ = gr::blocks::throttle::make(sizeof(Gnss_Synchro), 1000);  // 1000 samples per second (1kHz)
+                    time_counter_ = gnss_sdr_make_time_counter();
                     top_block_->connect(null_source_, 0, throttle_, 0);
-            top_block_->connect(throttle_, 0, observables_->get_left_block(), channels_count_);  //extra port for the sample counter pulse
+                    top_block_->connect(throttle_, 0, time_counter_, 0);
-
+                    top_block_->connect(time_counter_, 0, observables_->get_left_block(), channels_count_);
                 }
             catch (const std::exception& e)
                 {
@@ -305,12 +307,37 @@ void GNSSFlowgraph::connect()
                 }
         }
 
+#else
+
+    //connect the signal source to sample counter
+    //connect the sample counter to Observables
+    try
+        {
+            double fs = static_cast<double>(configuration_->property("GNSS-SDR.internal_fs_sps", 0));
+            if (fs == 0.0)
+                {
+                    LOG(WARNING) << "Set GNSS-SDR.internal_fs_sps in configuration file";
+                    std::cout << "Set GNSS-SDR.internal_fs_sps in configuration file" << std::endl;
+                    throw(std::invalid_argument("Set GNSS-SDR.internal_fs_sps in configuration"));
+                }
+            ch_out_sample_counter = gnss_sdr_make_sample_counter(fs, sig_conditioner_.at(0)->get_right_block()->output_signature()->sizeof_stream_item(0));
+            top_block_->connect(sig_conditioner_.at(0)->get_right_block(), 0, ch_out_sample_counter, 0);
+            top_block_->connect(ch_out_sample_counter, 0, observables_->get_left_block(), channels_count_);  //extra port for the sample counter pulse
+        }
+    catch (const std::exception& e)
+        {
+            LOG(WARNING) << "Can't connect sample counter";
+            LOG(ERROR) << e.what();
+            top_block_->disconnect_all();
+            return;
+        }
+
+#endif
+
     // Signal conditioner (selected_signal_source) >> channels (i) (dependent of their associated SignalSource_ID)
     int selected_signal_conditioner_ID;
     for (unsigned int i = 0; i < channels_count_; i++)
         {
-
-
             if (FPGA_enabled == false)
                 {
                     selected_signal_conditioner_ID = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".RF_channel_ID", 0);

src/core/receiver/gnss_flowgraph.h

@@ -49,6 +49,9 @@
 #include <string>
 #include <vector>
 
+#if ENABLE_FPGA
+#include "gnss_sdr_time_counter.h"
+#endif
 
 class GNSSBlockInterface;
 class ChannelInterface;
@@ -144,6 +147,9 @@ private:
 
     std::vector<std::shared_ptr<ChannelInterface>> channels_;
     gnss_sdr_sample_counter_sptr ch_out_sample_counter;
+#if ENABLE_FPGA
+    gnss_sdr_time_counter_sptr time_counter_;
+#endif
     gr::blocks::null_source::sptr null_source_;
     gr::blocks::throttle::sptr throttle_;
     gr::top_block_sptr top_block_;