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Added uplink/downlink splitter

This commit is contained in:
Piotr Krysik 2016-08-16 16:05:23 +02:00
parent 9e7b25c881
commit 2bb54c8fcd
10 changed files with 253 additions and 2 deletions
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3
grc/CMakeLists.txt
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@ -24,5 +24,6 @@ add_subdirectory(receiver)
add_subdirectory(flow_control)
add_subdirectory(misc_utils)
install(FILES
gsm_block_tree.xml DESTINATION share/gnuradio/grc/blocks
gsm_block_tree.xml
grgsm_uplink_downlink_filter.xml DESTINATION share/gnuradio/grc/blocks
)

23
grc/grgsm_uplink_downlink_filter.xml Normal file
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@ -0,0 +1,23 @@
<?xml version="1.0"?>
<block>
<name>uplink_downlink_filter</name>
<key>grgsm_uplink_downlink_filter</key>
<category>GSM</category>
<import>import grgsm</import>
<make>grgsm.uplink_downlink_filter($direction)</make>
<sink>
<name>in</name>
<type>message</type>
<optional>1</optional>
</sink>
<source>
<name>downlink</name>
<type>message</type>
<optional>1</optional>
</source>
<source>
<name>uplink</name>
<type>message</type>
<optional>1</optional>
</source>
</block>

3
include/grgsm/CMakeLists.txt
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@ -23,7 +23,8 @@
install(FILES
plotting.hpp
api.h
gsmtap.h DESTINATION include/grgsm
gsmtap.h
uplink_downlink_filter.h DESTINATION include/grgsm
)
add_subdirectory(decoding)

58
include/grgsm/uplink_downlink_filter.h Normal file
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@ -0,0 +1,58 @@
/* -*- c++ -*- */
/* @file
* @author Piotr Krysik <ptrkrysik@gmail.com>
* @section LICENSE
*
* Gr-gsm 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-gsm 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-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_H
#define INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_H
#include <grgsm/api.h>
#include <gnuradio/block.h>
namespace gr {
namespace grgsm {
/*!
* \brief <+description of block+>
* \ingroup grgsm
*
*/
class GRGSM_API uplink_downlink_filter : virtual public gr::block
{
public:
typedef boost::shared_ptr<uplink_downlink_filter> sptr;
/*!
* \brief Return a shared_ptr to a new instance of grgsm::uplink_downlink_filter.
*
* To avoid accidental use of raw pointers, grgsm::uplink_downlink_filter's
* constructor is in a private implementation
* class. grgsm::uplink_downlink_filter::make is the public interface for
* creating new instances.
*/
static sptr make();
};
} // namespace grgsm
} // namespace gr
#endif /* INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_H */

1
lib/CMakeLists.txt
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@ -66,6 +66,7 @@ list(APPEND grgsm_sources
qa_utils/message_source_impl.cc
qa_utils/message_sink_impl.cc
decryption/decryption_impl.cc
uplink_downlink_filter_impl.cc
)

77
lib/uplink_downlink_filter_impl.cc Normal file
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@ -0,0 +1,77 @@
/* -*- c++ -*- */
/* @file
* @author Piotr Krysik <ptrkrysik@gmail.com>
* @section LICENSE
*
* Gr-gsm 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-gsm 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-gsm; 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 "uplink_downlink_filter_impl.h"
#include <grgsm/gsmtap.h>
#define BURST_SIZE 148
namespace gr {
namespace grgsm {
uplink_downlink_filter::sptr
uplink_downlink_filter::make()
{
return gnuradio::get_initial_sptr
(new uplink_downlink_filter_impl());
}
/*
* The private constructor
*/
uplink_downlink_filter_impl::uplink_downlink_filter_impl()
: gr::block("uplink_downlink_filter",
gr::io_signature::make(0,0,0),
gr::io_signature::make(0,0,0))
{
message_port_register_in(pmt::mp("in"));
message_port_register_out(pmt::mp("uplink"));
message_port_register_out(pmt::mp("downlink"));
set_msg_handler(pmt::mp("in"), boost::bind(&uplink_downlink_filter_impl::process_msg, this, _1));
}
void uplink_downlink_filter_impl::process_msg(pmt::pmt_t msg)
{
gsmtap_hdr * header = (gsmtap_hdr *)(pmt::blob_data(pmt::cdr(msg)));
bool uplink_burst = (be16toh(header->arfcn) & 0x4000) ? true : false;
if(uplink_burst)
{
message_port_pub(pmt::mp("uplink"), msg);
} else {
message_port_pub(pmt::mp("downlink"), msg);
}
}
/*
* Our virtual destructor.
*/
uplink_downlink_filter_impl::~uplink_downlink_filter_impl()
{
}
} /* namespace grgsm */
} /* namespace gr */

43
lib/uplink_downlink_filter_impl.h Normal file
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@ -0,0 +1,43 @@
/* -*- c++ -*- */
/* @file
* @author Piotr Krysik <ptrkrysik@gmail.com>
* @section LICENSE
*
* Gr-gsm 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-gsm 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-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_IMPL_H
#define INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_IMPL_H
#include <grgsm/uplink_downlink_filter.h>
namespace gr {
namespace grgsm {
class uplink_downlink_filter_impl : public uplink_downlink_filter
{
public:
uplink_downlink_filter_impl();
~uplink_downlink_filter_impl();
void process_msg(pmt::pmt_t msg);
};
} // namespace grgsm
} // namespace gr
#endif /* INCLUDED_GRGSM_UPLINK_DOWNLINK_FILTER_IMPL_H */

1
python/CMakeLists.txt
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@ -64,3 +64,4 @@ GR_ADD_TEST(qa_dummy_burst_filter ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DI
#GR_ADD_TEST(qa_arfcn ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_arfcn.py)
#GR_ADD_TEST(qa_msg_to_tag ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_msg_to_tag.py)
#GR_ADD_TEST(qa_controlled_fractional_resampler_cc ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_controlled_fractional_resampler_cc.py)
GR_ADD_TEST(qa_uplink_downlink_filter ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_uplink_downlink_filter.py)

43
python/qa_uplink_downlink_filter.py Executable file
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@ -0,0 +1,43 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @file
# @author Piotr Krysik <ptrkrysik@gmail.com>
# @section LICENSE
#
# Gr-gsm 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-gsm 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-gsm; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
#
from gnuradio import gr, gr_unittest
from gnuradio import blocks
import grgsm_swig as grgsm
class qa_uplink_downlink_filter (gr_unittest.TestCase):
def setUp (self):
self.tb = gr.top_block ()
def tearDown (self):
self.tb = None
def test_001_t (self):
# set up fg
self.tb.run ()
# check data
if __name__ == '__main__':
gr_unittest.run(qa_uplink_downlink_filter, "qa_uplink_downlink_filter.xml")

3
swig/grgsm_swig.i
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@ -38,6 +38,7 @@
#include "grgsm/misc_utils/message_file_source.h"
#include "grgsm/misc_utils/msg_to_tag.h"
#include "grgsm/misc_utils/controlled_fractional_resampler_cc.h"
#include "grgsm/uplink_downlink_filter.h"
%}
%include "grgsm/receiver/receiver.h"
@ -107,3 +108,5 @@ GR_SWIG_BLOCK_MAGIC2(gsm, burst_source);
GR_SWIG_BLOCK_MAGIC2(gsm, message_source);
%include "grgsm/qa_utils/message_sink.h"
GR_SWIG_BLOCK_MAGIC2(gsm, message_sink);
%include "grgsm/uplink_downlink_filter.h"
GR_SWIG_BLOCK_MAGIC2(grgsm, uplink_downlink_filter);