109 lines
4.6 KiB
C++
109 lines
4.6 KiB
C++
/* -*- c++ -*- */
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/* @file
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* @author Piotr Krysik <ptrkrysik@gmail.com>
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* @section LICENSE
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*
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* Gr-gsm is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* Gr-gsm is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gr-gsm; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include <grgsm/endian.h>
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#include <grgsm/gsmtap.h>
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#include <grgsm/gsm_constants.h>
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#include "gen_test_ab_impl.h"
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namespace gr {
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namespace gsm {
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static uint8_t rach_synch_seq[] = {
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0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1,
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1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0 ,
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1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0,
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};
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static uint8_t AB[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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// static uint8_t AB[] = {0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1};
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// static uint8_t AB[] = { 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1};
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// static uint8_t AB[] = {1,1,1,1,1,1,1,1,1,0,1,1,0,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0,1,0,1,0,1,0,1,1,1,0,0,0,0,1,1,1,0,0,1,0,0,0,1,0,1,0,1,0,0,1,0,1,0,1,1,0,1,1,0,0,1,0,1,0,0,0,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
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// ,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
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gen_test_ab::sptr
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gen_test_ab::make()
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{
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return gnuradio::get_initial_sptr
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(new gen_test_ab_impl());
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}
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/*
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* The private constructor
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*/
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gen_test_ab_impl::gen_test_ab_impl()
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: gr::block("gen_test_ab",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(0, 0, 0))
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{
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message_port_register_in(pmt::intern("bursts_in"));
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message_port_register_out(pmt::intern("bursts_out"));
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set_msg_handler(pmt::intern("bursts_in"), boost::bind(&gen_test_ab_impl::generate_ab, this, boost::placeholders::_1));
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}
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/*
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* Our virtual destructor.
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*/
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gen_test_ab_impl::~gen_test_ab_impl()
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{
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}
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void gen_test_ab_impl::generate_ab(pmt::pmt_t burst)
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{
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uint8_t buf[sizeof(gsmtap_hdr) + 148];
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struct gsmtap_hdr *tap_header = (struct gsmtap_hdr *) buf;
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uint8_t *access_burst = buf + sizeof(gsmtap_hdr);
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// memset(access_burst, 0, 8); /* TB */
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// memcpy(access_burst + 8, rach_synch_seq, 41); /* sync seq */
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// memcpy(access_burst + 49, AB, 36); /* payload */
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// memset(access_burst + 85, 0, 63); /* TB + GP */
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memcpy(access_burst, AB, 148);
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gsmtap_hdr * header = (gsmtap_hdr *)(pmt::blob_data(pmt::cdr(burst)));
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uint32_t frame_nr = be32toh(header->frame_number);
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frame_nr = (frame_nr+51)% (26*51*2048);
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tap_header->version = GSMTAP_VERSION;
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tap_header->hdr_len = sizeof(gsmtap_hdr) / 4;
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tap_header->type = GSMTAP_TYPE_UM_BURST;
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tap_header->sub_type = GSMTAP_BURST_ACCESS;
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tap_header->frame_number = htobe32(frame_nr);
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tap_header->timeslot = header->timeslot;
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tap_header->arfcn = 0;
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pmt::pmt_t blob = pmt::make_blob(buf, sizeof(gsmtap_hdr) + BURST_SIZE);
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pmt::pmt_t pdu_header = pmt::make_dict();
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pmt::pmt_t new_msg = pmt::cons(pdu_header, blob);
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message_port_pub(pmt::intern("bursts_out"), new_msg);
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}
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} /* namespace gsm */
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} /* namespace gr */
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