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-rw-r--r--lib/demapping/get_bcch_or_ccch_bursts_impl.cc102
1 files changed, 0 insertions, 102 deletions
diff --git a/lib/demapping/get_bcch_or_ccch_bursts_impl.cc b/lib/demapping/get_bcch_or_ccch_bursts_impl.cc
deleted file mode 100644
index 5817627..0000000
--- a/lib/demapping/get_bcch_or_ccch_bursts_impl.cc
+++ /dev/null
@@ -1,102 +0,0 @@
-/* -*- 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 <grgsm/endian.h>
-#include <grgsm/gsmtap.h>
-#include "get_bcch_or_ccch_bursts_impl.h"
-
-namespace gr {
- namespace gsm {
-
- get_bcch_or_ccch_bursts::sptr
- get_bcch_or_ccch_bursts::make(unsigned int fn51_start)
- {
- return gnuradio::get_initial_sptr
- (new get_bcch_or_ccch_bursts_impl(fn51_start));
- }
-
- /*
- * The private constructor
- */
- get_bcch_or_ccch_bursts_impl::get_bcch_or_ccch_bursts_impl(unsigned int fn51_start)
- : gr::block("get_bcch_or_ccch_bursts",
- gr::io_signature::make(0, 0, 0),
- gr::io_signature::make(0, 0, 0)),
- d_fn51_start(fn51_start)
- {
- message_port_register_in(pmt::mp("bursts"));
- set_msg_handler(pmt::mp("bursts"), boost::bind(&get_bcch_or_ccch_bursts_impl::filter_ccch, this, _1));
- message_port_register_out(pmt::mp("bursts"));
- }
-
- /*
- * Our virtual destructor.
- */
- get_bcch_or_ccch_bursts_impl::~get_bcch_or_ccch_bursts_impl()
- {
- }
-
- void get_bcch_or_ccch_bursts_impl::filter_ccch(pmt::pmt_t msg)
- {
- pmt::pmt_t header_plus_burst = pmt::cdr(msg);
- gsmtap_hdr * header = (gsmtap_hdr *)pmt::blob_data(header_plus_burst);
- uint32_t frame_nr = be32toh(header->frame_number);
-
- uint32_t fn_mod51 = frame_nr % 51;
- int fn51_stop = d_fn51_start+3;
-
- if(header->timeslot==0){
- if(fn_mod51>=d_fn51_start && fn_mod51<=fn51_stop){
- uint32_t ii = fn_mod51-d_fn51_start;
- d_frame_numbers[ii]=frame_nr;
- d_bursts[ii] = msg;
- }
-
- if(fn_mod51==fn51_stop){
- //check for a situation where some BCCH bursts were lost
- //in this situation frame numbers won't be consecutive
- bool frames_are_consecutive = true;
- for(int jj=1; jj<4; jj++)
- {
- if((d_frame_numbers[jj]-d_frame_numbers[jj-1])!=1){
- frames_are_consecutive = false;
- }
- }
- if(frames_are_consecutive)
- {
- //send bursts to the output
- for(int jj=0; jj<4; jj++)
- {
- message_port_pub(pmt::mp("bursts"), d_bursts[jj]);
- }
- }
- }
- }
- }
- } /* namespace gsm */
-} /* namespace gr */
-