67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/* encoding.cpp
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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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* Copyright (C) 2013 by Holger Hans Peter Freyther
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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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#include <stdint.h>
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#include <gsm_rlcmac.h>
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struct gprs_rlcmac_bts;
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struct gprs_rlcmac_tbf;
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struct bitvec;
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/**
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* I help with encoding data into CSN1 messages.
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* TODO: Nobody can remember a function signature like this. One should
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* fill out a struct with the request parameters and then hand the struct
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* to the code.
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*/
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class Encoding {
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public:
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static int write_immediate_assignment(
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struct gprs_rlcmac_bts *bts,
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bitvec * dest, uint8_t downlink, uint8_t ra,
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uint32_t ref_fn, uint8_t ta, uint16_t arfcn, uint8_t ts, uint8_t tsc,
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uint8_t tfi, uint8_t usf, uint32_t tlli, uint8_t polling,
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uint32_t fn, uint8_t single_block, uint8_t alpha, uint8_t gamma,
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int8_t ta_idx);
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static void write_packet_uplink_assignment(
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struct gprs_rlcmac_bts *bts,
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bitvec * dest, uint8_t old_tfi,
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uint8_t old_downlink, uint32_t tlli, uint8_t use_tlli,
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struct gprs_rlcmac_tbf *tbf, uint8_t poll, uint8_t alpha,
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uint8_t gamma, int8_t ta_idx);
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static void write_packet_downlink_assignment(RlcMacDownlink_t * block, uint8_t old_tfi,
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uint8_t old_downlink, struct gprs_rlcmac_tbf *tbf, uint8_t poll,
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uint8_t alpha, uint8_t gamma, int8_t ta_idx, uint8_t ta_ts);
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static void write_packet_uplink_ack(struct gprs_rlcmac_bts *bts, RlcMacDownlink_t * block, struct gprs_rlcmac_tbf *tbf,
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uint8_t final);
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static int write_paging_request(bitvec * dest, uint8_t *ptmsi, uint16_t ptmsi_len);
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static unsigned write_repeated_page_info(bitvec * dest, unsigned& wp, uint8_t len,
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uint8_t *identity, uint8_t chan_needed);
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static unsigned write_packet_paging_request(bitvec * dest);
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};
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