1 files changed, 73 insertions, 0 deletions
diff --git a/blocks/src/lib/data_unit.cc b/blocks/src/lib/data_unit.cc
new file mode 100644
index 0000000..9e118c8
--- /dev/null
+++ b/blocks/src/lib/data_unit.cc
@@ -0,0 +1,73 @@
+/* -*- C++ -*- */
+
+/*
+ * Copyright 2008 Steve Glass
+ * 
+ * This file is part of OP25.
+ * 
+ * OP25 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.
+ * 
+ * OP25 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 OP25; see the file COPYING.  If not, write to the Free
+ * Software Foundation, Inc., 51 Franklin Street, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <data_unit.h>
+#include <hdu.h>
+#include <ldu1.h>
+#include <ldu2.h>
+#include <pdu.h>
+#include <tdu.h>
+#include <tsbk.h>
+#include <op25_yank.h>
+
+using namespace std;
+
+data_unit_sptr
+data_unit::make_data_unit(const_bit_queue& frame_body)
+{
+   data_unit_sptr d;
+   uint8_t duid = extract(frame_body, 60, 64);
+   switch(duid) {
+   case 0x0:
+      d = data_unit_sptr(new hdu(frame_body));
+      break;
+   case 0x3:
+      d = data_unit_sptr(new tdu(frame_body, false));
+      break;
+   case 0x5:
+      d = data_unit_sptr(new ldu1(frame_body));
+      break;
+   case 0x7:
+      d = data_unit_sptr(new tsbk(frame_body));
+      break;
+   case 0xa:
+      d = data_unit_sptr(new ldu2(frame_body));
+      break;
+   case 0x9: // VSELP "voice PDU"
+   case 0xc:
+      d = data_unit_sptr(new pdu(frame_body));
+      break;
+   case 0xf:
+      d = data_unit_sptr(new tdu(frame_body, true));
+      break;
+   };
+   return d;
+}
+
+data_unit::~data_unit()
+{
+}
+
+data_unit::data_unit()
+{
+}