From a57968df0b3f85ebe1d2f0b70185f90430548a12 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Wed, 25 Nov 2009 19:38:36 -0800
Subject: [PATCH] added sync output port to dxpsk2 demod

---
 .../src/python/gnuradio/blks2impl/dbpsk2.py   | 22 ++++++++++++-------
 .../src/python/gnuradio/blks2impl/dqpsk2.py   | 14 ++++++++----
 grc/blocks/blks2_dxpsk2_demod.xml             | 22 ++++++++++++++++++-
 3 files changed, 45 insertions(+), 13 deletions(-)

diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/dbpsk2.py b/gnuradio-core/src/python/gnuradio/blks2impl/dbpsk2.py
index 4541b453..cd9a207c 100644
--- a/gnuradio-core/src/python/gnuradio/blks2impl/dbpsk2.py
+++ b/gnuradio-core/src/python/gnuradio/blks2impl/dbpsk2.py
@@ -187,7 +187,8 @@ class dbpsk2_demod(gr.hier_block2):
                  timing_max_dev=_def_timing_max_dev,
                  gray_code=_def_gray_code,
                  verbose=_def_verbose,
-                 log=_def_log):
+                 log=_def_log,
+                 sync_out=False):
         """
 	Hierarchical block for RRC-filtered differential BPSK demodulation
 
@@ -208,14 +209,18 @@ class dbpsk2_demod(gr.hier_block2):
         @type gray_code: bool
         @param verbose: Print information about modulator?
         @type verbose: bool
-        @param debug: Print modualtion data to files?
-        @type debug: bool
+        @param log: Print modualtion data to files?
+        @type log: bool
+        @param sync_out: Output a sync signal on :1?
+        @type sync_out: bool
 	"""
-        
-	gr.hier_block2.__init__(self, "dbpsk2_demod",
-				gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
-				gr.io_signature(1, 1, gr.sizeof_char))       # Output signature
-				
+	if sync_out: io_sig_out = gr.io_signaturev(2, 2, (gr.sizeof_char, gr.sizeof_gr_complex))
+	else: io_sig_out = gr.io_signature(1, 1, gr.sizeof_char)
+
+	gr.hier_block2.__init__(self, "dqpsk2_demod",
+			        gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
+			        io_sig_out)       # Output signature
+
         self._samples_per_symbol = samples_per_symbol
         self._excess_bw = excess_bw
         self._costas_alpha = costas_alpha
@@ -278,6 +283,7 @@ class dbpsk2_demod(gr.hier_block2):
                      self.clock_recov,
                      self.time_recov,
                      self.diffdec, self.slicer, self.symbol_mapper, self.unpack, self)
+        if sync_out: self.connect(self.time_recov, (self, 1))
 
     def samples_per_symbol(self):
         return self._samples_per_symbol
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/dqpsk2.py b/gnuradio-core/src/python/gnuradio/blks2impl/dqpsk2.py
index 9704ac98..fd1e9f0e 100644
--- a/gnuradio-core/src/python/gnuradio/blks2impl/dqpsk2.py
+++ b/gnuradio-core/src/python/gnuradio/blks2impl/dqpsk2.py
@@ -187,7 +187,8 @@ class dqpsk2_demod(gr.hier_block2):
                  timing_max_dev=_def_timing_max_dev,
                  gray_code=_def_gray_code,
                  verbose=_def_verbose,
-                 log=_def_log):
+                 log=_def_log,
+                 sync_out=False):
         """
 	Hierarchical block for RRC-filtered DQPSK demodulation
 
@@ -208,13 +209,17 @@ class dqpsk2_demod(gr.hier_block2):
         @type gray_code: bool
         @param verbose: Print information about modulator?
         @type verbose: bool
-        @param debug: Print modualtion data to files?
-        @type debug: bool
+        @param log: Print modualtion data to files?
+        @type log: bool
+        @param sync_out: Output a sync signal on :1?
+        @type sync_out: bool
 	"""
+	if sync_out: io_sig_out = gr.io_signaturev(2, 2, (gr.sizeof_char, gr.sizeof_gr_complex))
+	else: io_sig_out = gr.io_signature(1, 1, gr.sizeof_char)
 
 	gr.hier_block2.__init__(self, "dqpsk2_demod",
 			        gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
-			        gr.io_signature(1, 1, gr.sizeof_char))       # Output signature
+			        io_sig_out)       # Output signature
 
         self._samples_per_symbol = samples_per_symbol
         self._excess_bw = excess_bw
@@ -278,6 +283,7 @@ class dqpsk2_demod(gr.hier_block2):
                      self.clock_recov,
                      self.time_recov,
                      self.diffdec, self.slicer, self.symbol_mapper, self.unpack, self)
+        if sync_out: self.connect(self.time_recov, (self, 1))
 
     def samples_per_symbol(self):
         return self._samples_per_symbol
diff --git a/grc/blocks/blks2_dxpsk2_demod.xml b/grc/blocks/blks2_dxpsk2_demod.xml
index 98658442..c1af5368 100644
--- a/grc/blocks/blks2_dxpsk2_demod.xml
+++ b/grc/blocks/blks2_dxpsk2_demod.xml
@@ -17,6 +17,7 @@
 	gray_code=$gray_code,
 	verbose=$verbose,
 	log=$log,
+	sync_out=$sync_out,
 )</make>
 	<param>
 		<name>Type</name>
@@ -71,7 +72,7 @@
 		<name>Gray Code</name>
 		<key>gray_code</key>
 		<value>True</value>
-		<type>enum</type>
+		<type>bool</type>
 		<option>
 			<name>Yes</name>
 			<key>True</key>
@@ -111,6 +112,20 @@
 			<key>False</key>
 		</option>
 	</param>
+	<param>
+		<name>Sync Out</name>
+		<key>sync_out</key>
+		<value>False</value>
+		<type>bool</type>
+		<option>
+			<name>On</name>
+			<key>True</key>
+		</option>
+		<option>
+			<name>Off</name>
+			<key>False</key>
+		</option>
+	</param>
 	<sink>
 		<name>in</name>
 		<type>complex</type>
@@ -119,4 +134,9 @@
 		<name>out</name>
 		<type>byte</type>
 	</source>
+	<source>
+		<name>sync</name>
+		<type>complex</type>
+		<optional>1</optional>
+	</source>
 </block>
-- 
2.47.2