| /* -*- 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 <grgsm/gsm_constants.h> |
| #include "gen_test_ab_impl.h" |
| |
| namespace gr { |
| namespace gsm { |
| |
| static uint8_t rach_synch_seq[] = { |
| 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, |
| }; |
| |
| 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 }; |
| // 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}; |
| // 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}; |
| // 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 |
| // ,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}; |
| gen_test_ab::sptr |
| gen_test_ab::make() |
| { |
| return gnuradio::get_initial_sptr |
| (new gen_test_ab_impl()); |
| } |
| |
| /* |
| * The private constructor |
| */ |
| gen_test_ab_impl::gen_test_ab_impl() |
| : gr::block("gen_test_ab", |
| gr::io_signature::make(0, 0, 0), |
| gr::io_signature::make(0, 0, 0)) |
| { |
| message_port_register_in(pmt::intern("bursts_in")); |
| message_port_register_out(pmt::intern("bursts_out")); |
| |
| set_msg_handler(pmt::intern("bursts_in"), boost::bind(&gen_test_ab_impl::generate_ab, this, _1)); |
| } |
| |
| /* |
| * Our virtual destructor. |
| */ |
| gen_test_ab_impl::~gen_test_ab_impl() |
| { |
| } |
| |
| void gen_test_ab_impl::generate_ab(pmt::pmt_t burst) |
| { |
| uint8_t buf[sizeof(gsmtap_hdr) + 148]; |
| struct gsmtap_hdr *tap_header = (struct gsmtap_hdr *) buf; |
| uint8_t *access_burst = buf + sizeof(gsmtap_hdr); |
| |
| // memset(access_burst, 0, 8); /* TB */ |
| // memcpy(access_burst + 8, rach_synch_seq, 41); /* sync seq */ |
| // memcpy(access_burst + 49, AB, 36); /* payload */ |
| // memset(access_burst + 85, 0, 63); /* TB + GP */ |
| |
| memcpy(access_burst, AB, 148); |
| |
| gsmtap_hdr * header = (gsmtap_hdr *)(pmt::blob_data(pmt::cdr(burst))); |
| uint32_t frame_nr = be32toh(header->frame_number); |
| frame_nr = (frame_nr+51)% (26*51*2048); |
| |
| tap_header->version = GSMTAP_VERSION; |
| tap_header->hdr_len = sizeof(gsmtap_hdr) / 4; |
| tap_header->type = GSMTAP_TYPE_UM_BURST; |
| tap_header->sub_type = GSMTAP_BURST_ACCESS; |
| tap_header->frame_number = htobe32(frame_nr); |
| tap_header->timeslot = header->timeslot; |
| tap_header->arfcn = 0; |
| |
| pmt::pmt_t blob = pmt::make_blob(buf, sizeof(gsmtap_hdr) + BURST_SIZE); |
| pmt::pmt_t pdu_header = pmt::make_dict(); |
| |
| pmt::pmt_t new_msg = pmt::cons(pdu_header, blob); |
| message_port_pub(pmt::intern("bursts_out"), new_msg); |
| } |
| } /* namespace gsm */ |
| } /* namespace gr */ |
| |