osmosdr: add initial component files

1 files changed, 84 insertions, 0 deletions

diff --git a/lib/osmosdr/osmosdr_src_c.cc b/lib/osmosdr/osmosdr_src_c.cc
new file mode 100644
index 0000000..b239237
--- /dev/null
+++ b/lib/osmosdr/osmosdr_src_c.cc
@@ -0,0 +1,84 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
+ *
+ * GNU Radio 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.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+/*
+ * config.h is generated by configure.  It contains the results
+ * of probing for features, options etc.  It should be the first
+ * file included in your .cc file.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "osmosdr_src_c.h"
+#include <gr_io_signature.h>
+#include <gr_audio_source.h>
+#include <gr_float_to_complex.h>
+
+/*
+ * Create a new instance of osmosdr_src_c and return
+ * a boost shared_ptr.  This is effectively the public constructor.
+ */
+osmosdr_src_c_sptr
+osmosdr_make_src_c (const std::string &args)
+{
+  return gnuradio::get_initial_sptr(new osmosdr_src_c (args));
+}
+
+/*
+ * Specify constraints on number of input and output streams.
+ * This info is used to construct the input and output signatures
+ * (2nd & 3rd args to gr_block's constructor).  The input and
+ * output signatures are used by the runtime system to
+ * check that a valid number and type of inputs and outputs
+ * are connected to this block.  In this case, we accept
+ * only 1 input and 1 output.
+ */
+static const int MIN_IN = 0;	// mininum number of input streams
+static const int MAX_IN = 0;	// maximum number of input streams
+static const int MIN_OUT = 1;	// minimum number of output streams
+static const int MAX_OUT = 1;	// maximum number of output streams
+
+/*
+ * The private constructor
+ */
+osmosdr_src_c::osmosdr_src_c (const std::string &args)
+  : gr_hier_block2 ("osmosdr_src_c",
+        gr_make_io_signature (MIN_IN, MAX_IN, sizeof (gr_complex)),
+        gr_make_io_signature (MIN_OUT, MAX_OUT, sizeof (gr_complex))),
+    osmosdr_rx_control(args)
+{
+    /* Audio source; sample rate is 500kHz by default */
+    audio_source::sptr src = audio_make_source(500000, audio_dev_name(), true);
+
+    /* block to convert stereo audio to a complex stream */
+    gr_float_to_complex_sptr f2c = gr_make_float_to_complex(1);
+
+    connect(src, 0, f2c, 0); /* Left is I */
+    connect(src, 1, f2c, 1); /* Right is Q */
+    connect(f2c, 0, self(), 0);
+}
+
+/*
+ * Our virtual destructor.
+ */
+osmosdr_src_c::~osmosdr_src_c ()
+{
+  // nothing else required in this example
+}