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292 lines
9.2 KiB
292 lines
9.2 KiB
/**
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* Digital Voice Modem - DSP Firmware (Hotspot)
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / DSP Firmware (Hotspot)
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*
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*/
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//
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// Based on code from the MMDVM_HS project. (https://github.com/juribeparada/MMDVM_HS)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2009-2015 by Jonathan Naylor G4KLX
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* Copyright (C) 2016 by Colin Durbridge G4EML
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* Copyright (C) 2018,2019 by Andy Uribe CA6JAU
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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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#include "Globals.h"
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#include "dmr/CalDMR.h"
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using namespace dmr;
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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// Voice LC Header, CC: 1, srcID: 1, dstID: TG9
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const uint8_t VH_1K[] = { 0x00U,
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0x00U, 0x20U, 0x08U, 0x08U, 0x02U, 0x38U, 0x15U, 0x00U, 0x2CU, 0xA0U, 0x14U,
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0x60U, 0x84U, 0x6DU, 0xFFU, 0x57U, 0xD7U, 0x5DU, 0xF5U, 0xDEU, 0x30U, 0x30U,
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0x01U, 0x10U, 0x01U, 0x40U, 0x03U, 0xC0U, 0x13U, 0xC1U, 0x1EU, 0x80U, 0x6FU };
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// Voice Term with LC, CC: 1, srcID: 1, dstID: TG9
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const uint8_t VT_1K[] = { 0x00U,
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0x00U, 0x4FU, 0x08U, 0xDCU, 0x02U, 0x88U, 0x15U, 0x78U, 0x2CU, 0xD0U, 0x14U,
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0xC0U, 0x84U, 0xADU, 0xFFU, 0x57U, 0xD7U, 0x5DU, 0xF5U, 0xD9U, 0x65U, 0x24U,
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0x02U, 0x28U, 0x06U, 0x20U, 0x0FU, 0x80U, 0x1BU, 0xC1U, 0x07U, 0x80U, 0x5CU };
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// Voice LC MS Header, CC: 1, srcID: 1, dstID: TG9
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const uint8_t VH_DMO1K[] = { 0x00U,
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0x00U, 0x20U, 0x08U, 0x08U, 0x02U, 0x38U, 0x15U, 0x00U, 0x2CU, 0xA0U, 0x14U,
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0x60U, 0x84U, 0x6DU, 0x5DU, 0x7FU, 0x77U, 0xFDU, 0x75U, 0x7EU, 0x30U, 0x30U,
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0x01U, 0x10U, 0x01U, 0x40U, 0x03U, 0xC0U, 0x13U, 0xC1U, 0x1EU, 0x80U, 0x6FU };
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// Voice Term MS with LC, CC: 1, srcID: 1, dstID: TG9
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const uint8_t VT_DMO1K[] = { 0x00U,
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0x00U, 0x4FU, 0x08U, 0xDCU, 0x02U, 0x88U, 0x15U, 0x78U, 0x2CU, 0xD0U, 0x14U,
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0xC0U, 0x84U, 0xADU, 0x5DU, 0x7FU, 0x77U, 0xFDU, 0x75U, 0x79U, 0x65U, 0x24U,
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0x02U, 0x28U, 0x06U, 0x20U, 0x0FU, 0x80U, 0x1BU, 0xC1U, 0x07U, 0x80U, 0x5CU };
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// Voice coding data + FEC, 1031 Hz Test Pattern
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const uint8_t VOICE_1K[] = { 0x00U,
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0xCEU, 0xA8U, 0xFEU, 0x83U, 0xACU, 0xC4U, 0x58U, 0x20U, 0x0AU, 0xCEU, 0xA8U,
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0xFEU, 0x83U, 0xA0U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x0CU, 0xC4U, 0x58U,
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0x20U, 0x0AU, 0xCEU, 0xA8U, 0xFEU, 0x83U, 0xACU, 0xC4U, 0x58U, 0x20U, 0x0AU };
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// Embedded LC: CC: 1, srcID: 1, dstID: TG9
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const uint8_t SYNCEMB_1K[6][7] = {
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{ 0x07U, 0x55U, 0xFDU, 0x7DU, 0xF7U, 0x5FU, 0x70U }, // BS VOICE SYNC (audio seq 0)
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{ 0x01U, 0x30U, 0x00U, 0x00U, 0x90U, 0x09U, 0x10U }, // EMB + Embedded LC1 (audio seq 1)
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{ 0x01U, 0x70U, 0x00U, 0x90U, 0x00U, 0x07U, 0x40U }, // EMB + Embedded LC2 (audio seq 2)
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{ 0x01U, 0x70U, 0x00U, 0x31U, 0x40U, 0x07U, 0x40U }, // EMB + Embedded LC3 (audio seq 3)
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{ 0x01U, 0x50U, 0xA1U, 0x71U, 0xD1U, 0x70U, 0x70U }, // EMB + Embedded LC4 (audio seq 4)
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{ 0x01U, 0x10U, 0x00U, 0x00U, 0x00U, 0x0EU, 0x20U } }; // EMB (audio seq 5)
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// Embedded LC MS: CC: 1, srcID: 1, dstID: TG9
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const uint8_t SYNCEMB_DMO1K[6][7] = {
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{ 0x07U, 0xF7U, 0xD5U, 0xDDU, 0x57U, 0xDFU, 0xD0U }, // MS VOICE SYNC (audio seq 0)
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{ 0x01U, 0x30U, 0x00U, 0x00U, 0x90U, 0x09U, 0x10U }, // EMB + Embedded LC1 (audio seq 1)
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{ 0x01U, 0x70U, 0x00U, 0x90U, 0x00U, 0x07U, 0x40U }, // EMB + Embedded LC2 (audio seq 2)
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{ 0x01U, 0x70U, 0x00U, 0x31U, 0x40U, 0x07U, 0x40U }, // EMB + Embedded LC3 (audio seq 3)
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{ 0x01U, 0x50U, 0xA1U, 0x71U, 0xD1U, 0x70U, 0x70U }, // EMB + Embedded LC4 (audio seq 4)
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{ 0x01U, 0x10U, 0x00U, 0x00U, 0x00U, 0x0EU, 0x20U } }; // EMB (audio seq 5)
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// Short LC:
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// TS1: dstID: 0, ACTIVITY_NONE
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// TS2: dstID: TG9, ACTIVITY_VOICE
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const uint8_t SHORTLC_1K[] = { 0x33U, 0x3AU, 0xA0U, 0x30U, 0x00U, 0x55U, 0xA6U, 0x5FU, 0x50U };
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Initializes a new instance of the CalDMR class.
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/// </summary>
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CalDMR::CalDMR() :
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m_transmit(false),
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m_state(DMRCAL1K_IDLE),
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m_frameStart(0U),
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m_dmr1k(),
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m_audioSeq(0),
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m_count(0)
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{
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::memcpy(m_dmr1k, VOICE_1K, DMR_FRAME_LENGTH_BYTES + 1U);
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}
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/// <summary>
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/// Process local state and transmit on the air interface.
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/// </summary>
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void CalDMR::process()
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{
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switch (m_modemState) {
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case STATE_DMR_CAL:
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case STATE_DMR_LF_CAL:
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if (m_transmit) {
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dmrTX.setCal(true);
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dmrTX.process();
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}
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else {
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dmrTX.setCal(false);
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}
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break;
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case STATE_DMR_CAL_1K:
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#if defined(DUPLEX)
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dmr1kcal();
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#endif
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break;
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case STATE_DMR_DMO_CAL_1K:
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dmrDMO1kcal();
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break;
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case STATE_INT_CAL:
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// Simple interrupt counter for board diagnostics (TCXO, connections, etc)
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// Not intended for precise interrupt frequency measurements
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m_count++;
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if (m_count >= CAL_DLY_LOOP) {
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m_count = 0U;
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uint16_t int1, int2;
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io.getIntCounter(int1, int2);
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DEBUG3("Counter INT1/INT2:", int1 >> 1U, int2);
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}
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break;
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default:
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break;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="n"></param>
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void CalDMR::createData1k(uint8_t n)
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{
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for (uint8_t i = 0; i < 5U; i++)
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m_dmr1k[i + 15U] = SYNCEMB_1K[n][i + 1U];
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m_dmr1k[14U] &= 0xF0U;
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m_dmr1k[20U] &= 0x0FU;
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m_dmr1k[14U] |= SYNCEMB_1K[n][0] & 0x0FU;
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m_dmr1k[20U] |= SYNCEMB_1K[n][6] & 0xF0U;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="n"></param>
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void CalDMR::createDataDMO1k(uint8_t n)
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{
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for (uint8_t i = 0; i < 5U; i++)
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m_dmr1k[i + 15U] = SYNCEMB_DMO1K[n][i + 1U];
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m_dmr1k[14U] &= 0xF0U;
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m_dmr1k[20U] &= 0x0FU;
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m_dmr1k[14U] |= SYNCEMB_DMO1K[n][0] & 0x0FU;
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m_dmr1k[20U] |= SYNCEMB_DMO1K[n][6] & 0xF0U;
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}
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/// <summary>
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///
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/// </summary>
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void CalDMR::dmr1kcal()
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{
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#if defined(DUPLEX)
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dmrTX.process();
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uint16_t space = dmrTX.getSpace2();
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if (space < 1U)
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return;
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switch (m_state) {
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case DMRCAL1K_VH:
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dmrTX.setColorCode(1U);
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dmrTX.writeShortLC(SHORTLC_1K, 9U);
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dmrTX.writeData2(VH_1K, DMR_FRAME_LENGTH_BYTES + 1U);
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dmrTX.setStart(true);
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m_state = DMRCAL1K_VOICE;
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break;
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case DMRCAL1K_VOICE:
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createData1k(m_audioSeq);
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dmrTX.writeData2(m_dmr1k, DMR_FRAME_LENGTH_BYTES + 1U);
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if (m_audioSeq == 5U) {
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m_audioSeq = 0U;
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if (!m_transmit)
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m_state = DMRCAL1K_VT;
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}
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else
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m_audioSeq++;
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break;
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case DMRCAL1K_VT:
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dmrTX.writeData2(VT_1K, DMR_FRAME_LENGTH_BYTES + 1U);
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m_frameStart = dmrTX.getFrameCount();
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m_state = DMRCAL1K_WAIT;
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break;
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case DMRCAL1K_WAIT:
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if (dmrTX.getFrameCount() > (m_frameStart + 30U)) {
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dmrTX.setStart(false);
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dmrTX.resetFifo2();
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m_audioSeq = 0U;
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m_state = DMRCAL1K_IDLE;
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}
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break;
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default:
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m_state = DMRCAL1K_IDLE;
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break;
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}
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#endif
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}
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/// <summary>
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///
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/// </summary>
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void CalDMR::dmrDMO1kcal()
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{
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dmrDMOTX.process();
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uint16_t space = dmrDMOTX.getSpace();
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if (space < 1U)
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return;
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switch (m_state) {
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case DMRCAL1K_VH:
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dmrDMOTX.writeData(VH_DMO1K, DMR_FRAME_LENGTH_BYTES + 1U);
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m_state = DMRCAL1K_VOICE;
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break;
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case DMRCAL1K_VOICE:
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createDataDMO1k(m_audioSeq);
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dmrDMOTX.writeData(m_dmr1k, DMR_FRAME_LENGTH_BYTES + 1U);
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if (m_audioSeq == 5U) {
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m_audioSeq = 0U;
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if (!m_transmit)
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m_state = DMRCAL1K_VT;
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}
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else
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m_audioSeq++;
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break;
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case DMRCAL1K_VT:
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dmrDMOTX.writeData(VT_DMO1K, DMR_FRAME_LENGTH_BYTES + 1U);
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m_state = DMRCAL1K_IDLE;
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break;
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default:
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m_state = DMRCAL1K_IDLE;
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m_audioSeq = 0U;
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break;
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}
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}
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/// <summary>
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/// Write DMR calibration state.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="length"></param>
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/// <returns></returns>
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uint8_t CalDMR::write(const uint8_t* data, uint8_t length)
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{
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if (length != 1U)
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return RSN_ILLEGAL_LENGTH;
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m_transmit = data[0U] == 1U;
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if (m_transmit && m_state == DMRCAL1K_IDLE && (m_modemState == STATE_DMR_CAL_1K || m_modemState == STATE_DMR_DMO_CAL_1K))
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m_state = DMRCAL1K_VH;
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if (m_transmit)
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io.rf1Conf(STATE_DMR, true);
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return RSN_OK;
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}
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