blob: 1cda7b42e2aa54439e504f5153c87b8ac1170334 [file] [log] [blame]
Holger Hans Peter Freytherd11290b2013-10-26 17:32:04 +02001/* decoding
2 *
3 * Copyright (C) 2012 Ivan Klyuchnikov
4 * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20#pragma once
21
Holger Hans Peter Freytherfcbc7022013-10-26 17:38:37 +020022#include <gsm_rlcmac.h>
Jacob Erlbeck4abc6862015-12-08 15:14:05 +010023#include "rlc.h"
Holger Hans Peter Freytherfcbc7022013-10-26 17:38:37 +020024
Holger Hans Peter Freytherd11290b2013-10-26 17:32:04 +020025#include <stdint.h>
26
27class Decoding {
28public:
Jacob Erlbeck4abc6862015-12-08 15:14:05 +010029 struct RlcData {
30 uint8_t offset;
31 uint8_t length;
32 bool is_complete;
33 };
34
Holger Hans Peter Freytherd11290b2013-10-26 17:32:04 +020035 static int tlli_from_ul_data(const uint8_t *data, uint8_t len,
36 uint32_t *tlli);
Jacob Erlbeck4abc6862015-12-08 15:14:05 +010037 static int rlc_data_from_ul_data(
38 const struct gprs_rlc_ul_data_block_info *rdbi,
39 GprsCodingScheme cs, const uint8_t *data, RlcData *chunks,
40 unsigned int chunks_size, uint32_t *tlli);
Holger Hans Peter Freytherfcbc7022013-10-26 17:38:37 +020041 static uint8_t get_ms_class_by_capability(MS_Radio_Access_capability_t *cap);
Jacob Erlbeckc3c58042015-09-28 17:55:32 +020042 static uint8_t get_egprs_ms_class_by_capability(MS_Radio_Access_capability_t *cap);
Holger Hans Peter Freytherdf6b4f52013-11-24 17:05:48 +010043
44 static void extract_rbb(const uint8_t *rbb, char *extracted_rbb);
Jacob Erlbeck4abc6862015-12-08 15:14:05 +010045
46 static int rlc_parse_ul_data_header(struct gprs_rlc_ul_header_egprs *rlc,
47 const uint8_t *data, GprsCodingScheme cs);
48 static unsigned int rlc_copy_to_aligned_buffer(
49 const struct gprs_rlc_ul_header_egprs *rlc,
50 unsigned int data_block_idx,
51 const uint8_t *src, uint8_t *buffer);
52 static const uint8_t *rlc_get_data_aligned(
53 const struct gprs_rlc_ul_header_egprs *rlc,
54 unsigned int data_block_idx,
55 const uint8_t *src, uint8_t *buffer);
Holger Hans Peter Freytherd11290b2013-10-26 17:32:04 +020056};