- added frequency tuner

git-svn-id: http://moon:8086/svn/software/trunk/projects/GnuRadio@543 b431acfa-c32f-4a4a-93f1-934dc6c82436

gr-jay/grc/jay_frequency_tuner.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0"?>
+<block>
+  <name>frequency_tuner</name>
+  <key>jay_frequency_tuner</key>
+  <category>[jay]</category>
+  <import>import jay</import>
+  <make>jay.frequency_tuner($freq_min, $freq_max, $freq_step)</make>
+  <param>
+    <name>Frequency Min</name>
+    <key>freq_min</key>
+    <value>0</value>
+    <type>float</type>
+  </param>
+   <param>
+    <name>Frequency Max</name>
+    <key>freq_max</key>
+    <value>0</value>
+    <type>float</type>
+  </param>
+   <param>
+    <name>Frequency Step</name>
+    <key>freq_step</key>
+    <value>0</value>
+    <type>float</type>
+  </param>
+   <sink>
+    <name>in</name>
+    <type>complex</type>
+  </sink>
+  <source>
+    <name>out</name>
+    <type>complex</type>
+  </source>
+</block>

gr-jay/include/jay/frequency_tuner.h

@@ -0,0 +1,56 @@
+/* -*- c++ -*- */
+/* 
+ * Copyright 2019 Jay Arrowfield.
+ * 
+ * This 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, or (at your option)
+ * any later version.
+ * 
+ * This software 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 this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+
+#ifndef INCLUDED_JAY_FREQUENCY_TUNER_H
+#define INCLUDED_JAY_FREQUENCY_TUNER_H
+
+#include <jay/api.h>
+#include <gnuradio/block.h>
+
+namespace gr {
+  namespace jay {
+
+    /*!
+     * \brief <+description of block+>
+     * \ingroup jay
+     *
+     */
+    class JAY_API frequency_tuner : virtual public gr::block
+    {
+     public:
+      typedef boost::shared_ptr<frequency_tuner> sptr;
+
+      /*!
+       * \brief Return a shared_ptr to a new instance of jay::frequency_tuner.
+       *
+       * To avoid accidental use of raw pointers, jay::frequency_tuner's
+       * constructor is in a private implementation
+       * class. jay::frequency_tuner::make is the public interface for
+       * creating new instances.
+       */
+      static sptr make(float freq_min, float freq_max, float freq_step);
+    };
+
+  } // namespace jay
+} // namespace gr
+
+#endif /* INCLUDED_JAY_FREQUENCY_TUNER_H */
+

gr-jay/lib/frequency_tuner_impl.cc

@@ -0,0 +1,81 @@
+/* -*- c++ -*- */
+/* 
+ * Copyright 2019 Jay Arrowfield.
+ * 
+ * This 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, or (at your option)
+ * any later version.
+ * 
+ * This software 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 this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gnuradio/io_signature.h>
+#include "frequency_tuner_impl.h"
+
+namespace gr {
+  namespace jay {
+
+    frequency_tuner::sptr
+    frequency_tuner::make(float freq_min, float freq_max, float freq_step)
+    {
+      return gnuradio::get_initial_sptr
+        (new frequency_tuner_impl(freq_min, freq_max, freq_step));
+    }
+
+    /*
+     * The private constructor
+     */
+    frequency_tuner_impl::frequency_tuner_impl(float freq_min, float freq_max, float freq_step)
+      : gr::block("frequency_tuner", gr::io_signature::make(1, 1, sizeof(gr_complex)), gr::io_signature::make(1, 1, sizeof(gr_complex)))
+	  , m_freq_min(freq_min)
+	  , m_freq_max(freq_max)
+	  , m_freq_step(freq_step)
+    {}
+
+    /*
+     * Our virtual destructor.
+     */
+    frequency_tuner_impl::~frequency_tuner_impl()
+    {
+    }
+
+    void
+    frequency_tuner_impl::forecast (int noutput_items, gr_vector_int &ninput_items_required)
+    {
+		ninput_items_required[0] = noutput_items;
+    }
+
+    int
+    frequency_tuner_impl::general_work (int noutput_items,
+                       gr_vector_int &ninput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items)
+    {
+      const gr_complex *in = (const gr_complex *) input_items[0];
+      gr_complex *out = (gr_complex *) output_items[0];
+
+      // Do <+signal processing+>
+      // Tell runtime system how many input items we consumed on
+      // each input stream.
+      consume_each (noutput_items);
+
+      // Tell runtime system how many output items we produced.
+      return noutput_items;
+    }
+
+  } /* namespace jay */
+} /* namespace gr */
+

gr-jay/lib/frequency_tuner_impl.h

@@ -0,0 +1,53 @@
+/* -*- c++ -*- */
+/* 
+ * Copyright 2019 Jay Arrowfield.
+ * 
+ * This 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, or (at your option)
+ * any later version.
+ * 
+ * This software 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 this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_JAY_FREQUENCY_TUNER_IMPL_H
+#define INCLUDED_JAY_FREQUENCY_TUNER_IMPL_H
+
+#include <jay/frequency_tuner.h>
+
+namespace gr {
+  namespace jay {
+
+    class frequency_tuner_impl : public frequency_tuner
+    {
+     private:
+      // Nothing to declare in this block.
+		 float m_freq_min;
+		 float m_freq_max;
+		 float m_freq_step;
+     public:
+      frequency_tuner_impl(float freq_min, float freq_max, float freq_step);
+      ~frequency_tuner_impl();
+
+      // Where all the action really happens
+      void forecast (int noutput_items, gr_vector_int &ninput_items_required);
+
+      int general_work(int noutput_items,
+           gr_vector_int &ninput_items,
+           gr_vector_const_void_star &input_items,
+           gr_vector_void_star &output_items);
+    };
+
+  } // namespace jay
+} // namespace gr
+
+#endif /* INCLUDED_JAY_FREQUENCY_TUNER_IMPL_H */
+