66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* coding_scheme.c
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*
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* Copyright (C) 2019 by sysmocom s.f.m.c. GmbH
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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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#include <stdint.h>
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#include <stdbool.h>
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#include <osmocom/core/utils.h>
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#include "coding_scheme.h"
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static struct {
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struct {
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uint8_t data_header_bits;
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} uplink, downlink;
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uint8_t data_block_header_bits;
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uint8_t num_blocks;
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const char *name;
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} hdr_type_info[NUM_HEADER_TYPES] = {
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{ { 0 }, { 0 }, 0, 0, "INVALID" },
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{ { 1 * 8 + 0 }, { 1 * 8 + 0 }, 0, 0, "CONTROL" },
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{ { 3 * 8 + 0 }, { 3 * 8 + 0 }, 0, 1, "GPRS_DATA" },
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{ { 5 * 8 + 6 }, { 5 * 8 + 0 }, 2, 2, "EGPRS_DATA_TYPE1" },
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{ { 4 * 8 + 5 }, { 3 * 8 + 4 }, 2, 1, "EGPRS_DATA_TYPE2" },
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{ { 3 * 8 + 7 }, { 3 * 8 + 7 }, 2, 1, "EGPRS_DATA_TYPE3" },
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};
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uint8_t num_data_blocks(enum HeaderType ht)
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{
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OSMO_ASSERT(ht < NUM_HEADER_TYPES);
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return hdr_type_info[ht].num_blocks;
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}
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uint8_t num_data_header_bits_UL(enum HeaderType ht)
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{
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OSMO_ASSERT(ht < NUM_HEADER_TYPES);
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return hdr_type_info[ht].uplink.data_header_bits;
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}
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uint8_t num_data_header_bits_DL(enum HeaderType ht)
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{
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OSMO_ASSERT(ht < NUM_HEADER_TYPES);
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return hdr_type_info[ht].downlink.data_header_bits;
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}
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uint8_t num_data_block_header_bits(enum HeaderType ht)
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{
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OSMO_ASSERT(ht < NUM_HEADER_TYPES);
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return hdr_type_info[ht].data_block_header_bits;
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}
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