102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
/* decoding
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*
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* Copyright (C) 2012 Ivan Klyuchnikov
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* Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "gsm_rlcmac.h"
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#include "coding_scheme.h"
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#ifdef __cplusplus
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}
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#endif
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#include <stdint.h>
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struct bitvec;
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#ifdef __cplusplus
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class Decoding {
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public:
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/* represents (parts) LLC PDUs within one RLC Data block */
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struct RlcData {
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uint8_t offset;
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uint8_t length;
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bool is_complete; /* if this PDU ends in this block */
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};
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static int rlc_data_from_ul_data(
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const struct gprs_rlc_data_block_info *rdbi,
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enum CodingScheme cs, const uint8_t *data, RlcData *chunks,
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unsigned int chunks_size, uint32_t *tlli);
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static void extract_rbb(const struct bitvec *rbb, char *show_rbb);
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static int rlc_parse_ul_data_header_egprs_type_3(
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struct gprs_rlc_data_info *rlc,
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const uint8_t *data,
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const enum CodingScheme &cs);
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static int rlc_parse_ul_data_header_egprs_type_2(
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struct gprs_rlc_data_info *rlc,
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const uint8_t *data,
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const enum CodingScheme &cs);
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static int rlc_parse_ul_data_header_egprs_type_1(
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struct gprs_rlc_data_info *rlc,
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const uint8_t *data,
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const enum CodingScheme &cs);
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static int rlc_parse_ul_data_header_gprs(
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struct gprs_rlc_data_info *rlc,
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const uint8_t *data,
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const enum CodingScheme &cs);
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static int rlc_parse_ul_data_header(struct gprs_rlc_data_info *rlc,
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const uint8_t *data, enum CodingScheme cs);
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static unsigned int rlc_copy_to_aligned_buffer(
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const struct gprs_rlc_data_info *rlc,
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unsigned int data_block_idx,
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const uint8_t *src, uint8_t *buffer);
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static const uint8_t *rlc_get_data_aligned(
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const struct gprs_rlc_data_info *rlc,
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unsigned int data_block_idx,
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const uint8_t *src, uint8_t *buffer);
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static int decode_egprs_acknack_bits(
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const EGPRS_AckNack_Desc_t *desc,
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struct bitvec *bits, int *bsn_begin, int *bsn_end,
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struct gprs_rlc_dl_window *window);
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static int decode_gprs_acknack_bits(
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const Ack_Nack_Description_t *desc,
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bitvec *bits, int *bsn_begin, int *bsn_end,
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gprs_rlc_dl_window *window);
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};
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#endif /* #ifdef __cplusplus */
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#ifdef __cplusplus
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extern "C" {
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#endif
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uint8_t get_ms_class_by_capability(MS_Radio_Access_capability_t *cap);
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uint8_t get_egprs_ms_class_by_capability(MS_Radio_Access_capability_t *cap);
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#ifdef __cplusplus
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}
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#endif
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