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https://github.com/g4klx/MMDVM.git
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694b83123a
In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.
85 lines
4.4 KiB
C
85 lines
4.4 KiB
C
/*
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* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
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* Copyright (C) 2018 by Bryan Biedenkapp <gatekeep@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(P25DEFINES_H)
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#define P25DEFINES_H
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const unsigned int P25_RADIO_SYMBOL_LENGTH = 10U; // At 48 kHz sample rate
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const unsigned int P25_HDR_FRAME_LENGTH_BYTES = 99U;
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const unsigned int P25_HDR_FRAME_LENGTH_BITS = P25_HDR_FRAME_LENGTH_BYTES * 8U;
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const unsigned int P25_HDR_FRAME_LENGTH_SYMBOLS = P25_HDR_FRAME_LENGTH_BYTES * 4U;
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const unsigned int P25_HDR_FRAME_LENGTH_SAMPLES = P25_HDR_FRAME_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_LDU_FRAME_LENGTH_BYTES = 216U;
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const unsigned int P25_LDU_FRAME_LENGTH_BITS = P25_LDU_FRAME_LENGTH_BYTES * 8U;
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const unsigned int P25_LDU_FRAME_LENGTH_SYMBOLS = P25_LDU_FRAME_LENGTH_BYTES * 4U;
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const unsigned int P25_LDU_FRAME_LENGTH_SAMPLES = P25_LDU_FRAME_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_TERMLC_FRAME_LENGTH_BYTES = 54U;
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const unsigned int P25_TERMLC_FRAME_LENGTH_BITS = P25_TERMLC_FRAME_LENGTH_BYTES * 8U;
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const unsigned int P25_TERMLC_FRAME_LENGTH_SYMBOLS = P25_TERMLC_FRAME_LENGTH_BYTES * 4U;
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const unsigned int P25_TERMLC_FRAME_LENGTH_SAMPLES = P25_TERMLC_FRAME_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_TERM_FRAME_LENGTH_BYTES = 18U;
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const unsigned int P25_TERM_FRAME_LENGTH_BITS = P25_TERM_FRAME_LENGTH_BYTES * 8U;
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const unsigned int P25_TERM_FRAME_LENGTH_SYMBOLS = P25_TERM_FRAME_LENGTH_BYTES * 4U;
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const unsigned int P25_TERM_FRAME_LENGTH_SAMPLES = P25_TERM_FRAME_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_TSDU_FRAME_LENGTH_BYTES = 45U;
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const unsigned int P25_TSDU_FRAME_LENGTH_BITS = P25_TSDU_FRAME_LENGTH_BYTES * 8U;
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const unsigned int P25_TSDU_FRAME_LENGTH_SYMBOLS = P25_TSDU_FRAME_LENGTH_BYTES * 4U;
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const unsigned int P25_TSDU_FRAME_LENGTH_SAMPLES = P25_TSDU_FRAME_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_SYNC_LENGTH_BYTES = 6U;
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const unsigned int P25_SYNC_LENGTH_BITS = P25_SYNC_LENGTH_BYTES * 8U;
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const unsigned int P25_SYNC_LENGTH_SYMBOLS = P25_SYNC_LENGTH_BYTES * 4U;
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const unsigned int P25_SYNC_LENGTH_SAMPLES = P25_SYNC_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const unsigned int P25_NID_LENGTH_BYTES = 8U;
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const unsigned int P25_NID_LENGTH_BITS = P25_NID_LENGTH_BYTES * 8U;
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const unsigned int P25_NID_LENGTH_SYMBOLS = P25_NID_LENGTH_BYTES * 4U;
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const unsigned int P25_NID_LENGTH_SAMPLES = P25_NID_LENGTH_SYMBOLS * P25_RADIO_SYMBOL_LENGTH;
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const uint8_t P25_SYNC_BYTES[] = {0x55U, 0x75U, 0xF5U, 0xFFU, 0x77U, 0xFFU};
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const uint8_t P25_SYNC_BYTES_LENGTH = 6U;
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const uint64_t P25_SYNC_BITS = 0x00005575F5FF77FFU;
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const uint64_t P25_SYNC_BITS_MASK = 0x0000FFFFFFFFFFFFU;
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// 5 5 7 5 F 5 F F 7 7 F F
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// 01 01 01 01 01 11 01 01 11 11 01 01 11 11 11 11 01 11 01 11 11 11 11 11
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// +3 +3 +3 +3 +3 -3 +3 +3 -3 -3 +3 +3 -3 -3 -3 -3 +3 -3 +3 -3 -3 -3 -3 -3
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const int8_t P25_SYNC_SYMBOLS_VALUES[] = {+3, +3, +3, +3, +3, -3, +3, +3, -3, -3, +3, +3, -3, -3, -3, -3, +3, -3, +3, -3, -3, -3, -3, -3};
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const uint32_t P25_SYNC_SYMBOLS = 0x00FB30A0U;
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const uint32_t P25_SYNC_SYMBOLS_MASK = 0x00FFFFFFU;
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const uint8_t P25_DUID_HDU = 0x00U; // Header Data Unit
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const uint8_t P25_DUID_TDU = 0x03U; // Simple Terminator Data Unit
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const uint8_t P25_DUID_LDU1 = 0x05U; // Logical Link Data Unit 1
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const uint8_t P25_DUID_TSDU = 0x07U; // Trunking System Data Unit
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const uint8_t P25_DUID_LDU2 = 0x0AU; // Logical Link Data Unit 2
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const uint8_t P25_DUID_PDU = 0x0CU; // Packet Data Unit
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const uint8_t P25_DUID_TDULC = 0x0FU; // Terminator Data Unit with Link Control
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#endif
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