Uplink: Forgot to add the actual decoder.

include/air_modes_uplink.h

@@ -0,0 +1,64 @@
+/*
+# Copyright 2010 Nick Foster
+# 
+# This file is part of gr-air-modes
+# 
+# gr-air-modes 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.
+# 
+# gr-air-modes 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 gr-air-modes; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+# 
+*/
+
+#ifndef INCLUDED_AIR_MODES_UPLINK_H
+#define INCLUDED_AIR_MODES_UPLINK_H
+
+#include <gr_block.h>
+#include <gr_msg_queue.h>
+#include <air_modes_api.h>
+
+class air_modes_uplink;
+typedef boost::shared_ptr<air_modes_uplink> air_modes_uplink_sptr;
+
+AIR_MODES_API air_modes_uplink_sptr air_make_modes_uplink(int channel_rate, float threshold_db, gr_msg_queue_sptr queue);
+
+/*!
+ * \brief mode select uplink detection
+ * \ingroup block
+ */
+class AIR_MODES_API air_modes_uplink : public gr_block
+{
+private:
+    friend air_modes_uplink_sptr air_make_modes_uplink(int channel_rate, float threshold_db, gr_msg_queue_sptr queue);
+    air_modes_uplink(int channel_rate, float threshold_db, gr_msg_queue_sptr queue);
+
+    int d_check_width;
+    float d_symbol_rate;
+    float d_uplink_length_us;
+    int d_samples_per_symbol;
+    float d_threshold_db;
+    float d_threshold;
+    pmt::pmt_t d_me, d_key;
+    gr_tag_t d_timestamp;
+    double d_secs_per_sample;
+    gr_msg_queue_sptr d_queue;
+    std::ostringstream d_payload;
+
+public:
+    int general_work (int noutput_items,
+              gr_vector_int &ninput_items,
+              gr_vector_const_void_star &input_items,
+              gr_vector_void_star &output_items);
+};
+
+#endif /* INCLUDED_AIR_MODES_UPLINK_H */