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/* -*- c++ -*- */
/*
* @file
* @author (C) 2015 by Roman Khassraf <rkhassraf@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_GSM_UNIVERSAL_TCH_CHANS_DEMAPPER_IMPL_H
#define INCLUDED_GSM_UNIVERSAL_TCH_CHANS_DEMAPPER_IMPL_H
#include <grgsm/demapping/tch_f_chans_demapper.h>
namespace gr {
namespace gsm {
class tch_f_chans_demapper_impl : public tch_f_chans_demapper
{
private:
unsigned int d_timeslot;
// Downlink
uint32_t d_frame_numbers_dl[3][8]; // for checking consecutive frame numbers of tch
uint32_t d_frame_numbers_sacch_dl[4]; // for checking consecutive frame numbers of sacch
pmt::pmt_t d_bursts_dl[3][8]; // for tch output headers+bursts
pmt::pmt_t d_bursts_sacch_dl[4]; // for sacch output bursts
// bool d_bursts_stolen[3]; // useless!
// Uplink
uint32_t d_frame_numbers_ul[3][8]; // for checking consecutive frame numbers of tch
uint32_t d_frame_numbers_sacch_ul[4]; // for checking consecutive frame numbers of sacch
pmt::pmt_t d_bursts_ul[3][8]; // for tch output headers+bursts
pmt::pmt_t d_bursts_sacch_ul[4]; // for sacch output bursts
void sacch_tch_demapper(uint32_t fn_mod13, u_int32_t fn_mod26, uint32_t frame_nr, pmt::pmt_t *d_bursts_sacch,
uint32_t *d_frame_numbers_sacch, pmt::pmt_t d_bursts[3][8],
uint32_t d_frame_numbers[3][8], pmt::pmt_t msg_out);
public:
tch_f_chans_demapper_impl(unsigned int timeslot_nr);
~tch_f_chans_demapper_impl();
void filter_tch_chans(pmt::pmt_t msg);
};
} // namespace gsm
} // namespace gr
#endif /* INCLUDED_GSM_UNIVERSAL_TCH_CHANS_DEMAPPER_IMPL_H */
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