| /* -*- 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. |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <gnuradio/io_signature.h> |
| #include "burst_source_impl.h" |
| #include "stdio.h" |
| #include <boost/scoped_ptr.hpp> |
| #include <grgsm/gsmtap.h> |
| #include <grgsm/endian.h> |
| |
| namespace gr { |
| namespace gsm { |
| |
| burst_source::sptr |
| burst_source::make(const std::vector<int> &framenumbers, |
| const std::vector<int> ×lots, |
| const std::vector<std::string> &burst_data) |
| { |
| return gnuradio::get_initial_sptr |
| (new burst_source_impl(framenumbers, timeslots, burst_data)); |
| } |
| |
| /* |
| * The private constructor |
| */ |
| burst_source_impl::burst_source_impl(const std::vector<int> &framenumbers, |
| const std::vector<int> ×lots, |
| const std::vector<std::string> &burst_data) |
| : gr::block("burst_source", |
| gr::io_signature::make(0, 0, 0), |
| gr::io_signature::make(0, 0, 0)), |
| d_finished(false), |
| d_arfcn(0) |
| { |
| message_port_register_out(pmt::mp("out")); |
| set_framenumbers(framenumbers); |
| set_timeslots(timeslots); |
| set_burst_data(burst_data); |
| } |
| |
| /* |
| * Our virtual destructor. |
| */ |
| burst_source_impl::~burst_source_impl() |
| { |
| if (d_finished == false){ |
| d_finished = true; |
| } |
| } |
| |
| void burst_source_impl::set_framenumbers(const std::vector<int> &framenumbers) |
| { |
| d_framenumbers = framenumbers; |
| } |
| |
| void burst_source_impl::set_timeslots(const std::vector<int> ×lots) |
| { |
| d_timeslots = timeslots; |
| } |
| |
| void burst_source_impl::set_burst_data(const std::vector<std::string> &burst_data) |
| { |
| d_burst_data = burst_data; |
| } |
| |
| void burst_source_impl::set_arfcn(uint16_t arfcn) |
| { |
| d_arfcn = arfcn; |
| } |
| |
| bool burst_source_impl::start() |
| { |
| d_finished = false; |
| d_thread = boost::shared_ptr<gr::thread::thread> |
| (new gr::thread::thread(boost::bind(&burst_source_impl::run, this))); |
| return block::start(); |
| } |
| |
| bool burst_source_impl::stop() |
| { |
| d_finished = true; |
| d_thread->interrupt(); |
| d_thread->join(); |
| return block::stop(); |
| } |
| |
| bool burst_source_impl::finished() |
| { |
| return d_finished; |
| } |
| |
| void burst_source_impl::run() |
| { |
| for (int i=0; i<d_burst_data.size(); i++) |
| { |
| if (d_burst_data[i].length() == BURST_SIZE && |
| d_timeslots[i] >= 0 && d_timeslots[i] <= 7 && |
| d_framenumbers[i] >= 0 && d_framenumbers[i] <= (26 * 51 * 2048 - 1)) |
| { |
| boost::scoped_ptr<gsmtap_hdr> tap_header(new gsmtap_hdr()); |
| |
| tap_header->version = GSMTAP_VERSION; |
| tap_header->hdr_len = sizeof(gsmtap_hdr)/4; |
| tap_header->type = GSMTAP_TYPE_UM_BURST; |
| tap_header->timeslot = d_timeslots[i]; |
| tap_header->frame_number = htobe32(d_framenumbers[i]); |
| tap_header->sub_type = GSMTAP_BURST_NORMAL; |
| tap_header->arfcn = d_arfcn; |
| tap_header->signal_dbm = 0; |
| tap_header->snr_db = 0; |
| |
| uint8_t burst[BURST_SIZE]; |
| |
| for (int j=0; j<BURST_SIZE; j++) |
| { |
| if (d_burst_data[i][j] == '0') |
| { |
| burst[j] = 0; |
| } |
| else |
| { |
| burst[j] = 1; |
| } |
| } |
| |
| int8_t header_plus_burst[sizeof(gsmtap_hdr) + BURST_SIZE]; |
| memcpy(header_plus_burst, tap_header.get(), sizeof(gsmtap_hdr)); |
| memcpy(header_plus_burst + sizeof(gsmtap_hdr), burst, BURST_SIZE); |
| |
| pmt::pmt_t blob_header_plus_burst = pmt::make_blob(header_plus_burst, sizeof(gsmtap_hdr) + BURST_SIZE); |
| pmt::pmt_t msg = pmt::cons(pmt::PMT_NIL, blob_header_plus_burst); |
| |
| message_port_pub(pmt::mp("out"), msg); |
| } |
| } |
| post(pmt::mp("system"), pmt::cons(pmt::mp("done"), pmt::from_long(1))); |
| } |
| } /* namespace gsm */ |
| } /* namespace gr */ |
| |
| |