diff options
Diffstat (limited to 'gr-trellis/lib/pccc_decoder_combined_blk_impl.cc')
| -rw-r--r-- | gr-trellis/lib/pccc_decoder_combined_blk_impl.cc | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/gr-trellis/lib/pccc_decoder_combined_blk_impl.cc b/gr-trellis/lib/pccc_decoder_combined_blk_impl.cc new file mode 100644 index 0000000000..a1e0772ab8 --- /dev/null +++ b/gr-trellis/lib/pccc_decoder_combined_blk_impl.cc @@ -0,0 +1,150 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2010,2012,2018 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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. + * + * GNU Radio 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 GNU Radio; 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 "pccc_decoder_combined_blk_impl.h" +#include <gnuradio/io_signature.h> +#include <iostream> +#include <gnuradio/trellis/core_algorithms.h> + +namespace gr { + namespace trellis { + + template <class IN_T,class OUT_T> + typename pccc_decoder_combined_blk<IN_T,OUT_T>::sptr + pccc_decoder_combined_blk<IN_T,OUT_T>::make(const fsm &FSMo, int STo0, int SToK, + const fsm &FSMi, int STi0, int STiK, + const interleaver &INTERLEAVER, + int blocklength, + int repetitions, + siso_type_t SISO_TYPE, + int D, + const std::vector<IN_T> &TABLE, + digital::trellis_metric_type_t METRIC_TYPE, + float scaling) + { + return gnuradio::get_initial_sptr + (new pccc_decoder_combined_blk_impl<IN_T,OUT_T>(FSMo, STo0, SToK, FSMi, STi0, STiK, + INTERLEAVER, blocklength, repetitions, + SISO_TYPE, D, TABLE,METRIC_TYPE, scaling)); + } + + template <class IN_T,class OUT_T> + pccc_decoder_combined_blk_impl<IN_T,OUT_T>::pccc_decoder_combined_blk_impl(const fsm &FSMo, int STo0, int SToK, + const fsm &FSMi, int STi0, int STiK, + const interleaver &INTERLEAVER, + int blocklength, + int repetitions, + siso_type_t SISO_TYPE, + int D, + const std::vector<IN_T> &TABLE, + digital::trellis_metric_type_t METRIC_TYPE, + float scaling) + : block("pccc_decoder_combined_blk<IN_T,OUT_T>", + io_signature::make(1, 1, sizeof(IN_T)), + io_signature::make(1, 1, sizeof(OUT_T))), + d_FSMo(FSMo), d_STo0(STo0), d_SToK(SToK), + d_FSMi(FSMi), d_STi0(STi0), d_STiK(STiK), + d_INTERLEAVER(INTERLEAVER), + d_blocklength(blocklength), + d_repetitions(repetitions), + d_SISO_TYPE(SISO_TYPE), + d_D(D), + d_TABLE(TABLE), + d_METRIC_TYPE(METRIC_TYPE), + d_scaling(scaling) + { + assert(d_FSMo.I() == d_FSMi.I()); + this->set_relative_rate (1, (uint64_t) d_D); + this->set_output_multiple (d_blocklength); + } + + template <class IN_T,class OUT_T> + pccc_decoder_combined_blk_impl<IN_T,OUT_T>::~pccc_decoder_combined_blk_impl() + { + } + + template <class IN_T,class OUT_T> + void + pccc_decoder_combined_blk_impl<IN_T,OUT_T>::set_scaling(float scaling) + { + gr::thread::scoped_lock guard(this->d_setlock); + d_scaling = scaling; + } + + template <class IN_T,class OUT_T> + void + pccc_decoder_combined_blk_impl<IN_T,OUT_T>::forecast(int noutput_items, + gr_vector_int &ninput_items_required) + { + int input_required = d_D * noutput_items; + ninput_items_required[0] = input_required; + } + + //=========================================================== + + template <class IN_T,class OUT_T> + int + pccc_decoder_combined_blk_impl<IN_T,OUT_T>::general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) + { + gr::thread::scoped_lock guard(this->d_setlock); + int nblocks = noutput_items / d_blocklength; + + float (*p2min)(float, float) = NULL; + if(d_SISO_TYPE == TRELLIS_MIN_SUM) + p2min = &min; + else if(d_SISO_TYPE == TRELLIS_SUM_PRODUCT) + p2min = &min_star; + + const IN_T *in = (const IN_T *) input_items[0]; + OUT_T *out = (OUT_T *) output_items[0]; + for (int n=0;n<nblocks;n++) { + pccc_decoder_combined(d_FSMo, d_STo0, d_SToK, + d_FSMi, d_STi0, d_STiK, + d_INTERLEAVER, d_blocklength, d_repetitions, + p2min, + d_D,d_TABLE, + d_METRIC_TYPE, + d_scaling, + &(in[n*d_blocklength*d_D]), + &(out[n*d_blocklength])); + } + + this->consume_each(d_D * noutput_items); + return noutput_items; + } + template class pccc_decoder_combined_blk<float, std::uint8_t>; + template class pccc_decoder_combined_blk<float, std::int16_t>; + template class pccc_decoder_combined_blk<float, std::int32_t>; + template class pccc_decoder_combined_blk<gr_complex, std::uint8_t>; + template class pccc_decoder_combined_blk<gr_complex, std::int16_t>; + template class pccc_decoder_combined_blk<gr_complex, std::int32_t>; + + + } /* namespace trellis */ +} /* namespace gr */ |