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#1444 Adds interim Hytera Aloha message support.
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Dennis Sheirer
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Feb 12, 2023
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198 changes: 198 additions & 0 deletions
198
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/hytera/HyteraAloha.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| /* | ||
| * ***************************************************************************** | ||
| * Copyright (C) 2014-2023 Dennis Sheirer | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/> | ||
| * **************************************************************************** | ||
| */ | ||
|
|
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| package io.github.dsheirer.module.decode.dmr.message.data.csbk.hytera; | ||
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| import io.github.dsheirer.bits.CorrectedBinaryMessage; | ||
| import io.github.dsheirer.identifier.Identifier; | ||
| import io.github.dsheirer.identifier.radio.RadioIdentifier; | ||
| import io.github.dsheirer.module.decode.dmr.DMRSyncPattern; | ||
| import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio; | ||
| import io.github.dsheirer.module.decode.dmr.message.CACH; | ||
| import io.github.dsheirer.module.decode.dmr.message.data.SlotType; | ||
| import io.github.dsheirer.module.decode.dmr.message.data.csbk.CSBKMessage; | ||
| import io.github.dsheirer.module.decode.dmr.message.type.ServiceFunction; | ||
| import io.github.dsheirer.module.decode.dmr.message.type.SystemIdentityCode; | ||
| import io.github.dsheirer.module.decode.dmr.message.type.Version; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
||
| /** | ||
| * Hytera DMR Tier III - Aloha Message | ||
| */ | ||
| public class HyteraAloha extends CSBKMessage | ||
| { | ||
| //TODO: not sure what bits 16 to 31 are used for ... awaiting documentation. | ||
| //TODO: bits 32 to 79 seem to align with the standard aloha. | ||
|
|
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| private static final int[] RESERVED = new int[]{16, 17}; | ||
| private static final int SITE_TIMESLOT_SYNCHRONIZATION = 18; | ||
| private static final int[] VERSION = new int[]{19, 20, 21}; | ||
| private static final int TIMING_OFFSET = 22; | ||
| private static final int ACTIVE_NETWORK_CONNECTION_FLAG = 23; | ||
| private static final int[] MASK = new int[]{24, 25, 26, 27, 28}; | ||
| private static final int[] SERVICE_FUNCTION = new int[]{29, 30}; | ||
| private static final int[] N_RAND_WAIT = new int[]{31, 32, 33, 34}; | ||
| private static final int REGISTRATION_REQUIRED_FLAG = 35; | ||
| private static final int[] BACKOFF = new int[]{36, 37, 38, 39}; | ||
| private static final int SYSTEM_IDENTITY_CODE_OFFSET = 40; | ||
| private static final int[] RADIO = new int[]{56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, | ||
| 73, 74, 75, 76, 77, 78, 79}; | ||
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| private SystemIdentityCode mSystemIdentityCode; | ||
| private RadioIdentifier mRadioIdentifier; | ||
| private List<Identifier> mIdentifiers; | ||
| #14 | ||
| /** | ||
| * Constructs an instance | ||
| * | ||
| * @param syncPattern for the CSBK | ||
| * @param message bits | ||
| * @param cach for the DMR burst | ||
| * @param slotType for this message | ||
| * @param timestamp | ||
| * @param timeslot | ||
| */ | ||
| public HyteraAloha(DMRSyncPattern syncPattern, CorrectedBinaryMessage message, CACH cach, SlotType slotType, long timestamp, int timeslot) | ||
| { | ||
| super(syncPattern, message, cach, slotType, timestamp, timeslot); | ||
| } | ||
|
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||
| @Override | ||
| public String toString() | ||
| { | ||
| StringBuilder sb = new StringBuilder(); | ||
|
|
||
| if(!isValid()) | ||
| { | ||
| sb.append("[CRC-ERROR] "); | ||
| } | ||
|
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| sb.append("CC:").append(getSlotType().getColorCode()); | ||
| sb.append(" HYTERA ALOHA"); | ||
|
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| if(hasRadioIdentifier()) | ||
| { | ||
| sb.append(" TO:").append(getRadioIdentifier()); | ||
| } | ||
|
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| sb.append(" ").append(getSystemIdentityCode().getModel()); | ||
| sb.append(" NETWORK:").append(getSystemIdentityCode().getNetwork()); | ||
| sb.append(" SITE:").append(getSystemIdentityCode().getSite()); | ||
| if(hasActiveNetworkConnection()) | ||
| { | ||
| sb.append(" NET-CONNECTED"); | ||
| } | ||
| else | ||
| { | ||
| sb.append(" NET-DISCONNECTED"); | ||
| } | ||
|
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| sb.append(" SERVICES:").append(getServiceFunction()); | ||
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| sb.append(" ETSI VER:").append(getVersion()); | ||
| sb.append(" MASK:").append(getMask()); | ||
|
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| if(getSystemIdentityCode().getPAR().isMultipleControlChannels()) | ||
| { | ||
| sb.append(" ").append(getSystemIdentityCode().getPAR()); | ||
| } | ||
|
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| sb.append(" ").append(getMessage().toHexString()); | ||
|
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| return sb.toString(); | ||
| } | ||
|
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| /** | ||
| * Services provided by the control channel. | ||
| */ | ||
| public ServiceFunction getServiceFunction() | ||
| { | ||
| return ServiceFunction.fromValue(getMessage().getInt(SERVICE_FUNCTION)); | ||
| } | ||
|
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||
| /** | ||
| * Mobile subscriber ID masking value. See: 102 361-4 p6.1.3 | ||
| */ | ||
| public int getMask() | ||
| { | ||
| return getMessage().getInt(MASK); | ||
| } | ||
|
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| public boolean hasActiveNetworkConnection() | ||
| { | ||
| return getMessage().get(ACTIVE_NETWORK_CONNECTION_FLAG); | ||
| } | ||
|
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| /** | ||
| * DMR Tier III ETSI 102 361-4 ICD Version Number supported by this system | ||
| */ | ||
| public Version getVersion() | ||
| { | ||
| return Version.fromValue(getMessage().getInt(VERSION)); | ||
| } | ||
|
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||
| /** | ||
| * Acknowledged radio identifier | ||
| */ | ||
| public RadioIdentifier getRadioIdentifier() | ||
| { | ||
| if(mRadioIdentifier == null) | ||
| { | ||
| mRadioIdentifier = DMRRadio.createTo(getMessage().getInt(RADIO)); | ||
| } | ||
|
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| return mRadioIdentifier; | ||
| } | ||
|
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| public boolean hasRadioIdentifier() | ||
| { | ||
| return getMessage().getInt(RADIO) != 0; | ||
| } | ||
|
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| /** | ||
| * System Identity Code structure | ||
| */ | ||
| public SystemIdentityCode getSystemIdentityCode() | ||
| { | ||
| if(mSystemIdentityCode == null) | ||
| { | ||
| mSystemIdentityCode = new SystemIdentityCode(getMessage(), SYSTEM_IDENTITY_CODE_OFFSET, true); | ||
| } | ||
|
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| return mSystemIdentityCode; | ||
| } | ||
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| @Override | ||
| public List<Identifier> getIdentifiers() | ||
| { | ||
| if(mIdentifiers == null) | ||
| { | ||
| mIdentifiers = new ArrayList<>(); | ||
| if(hasRadioIdentifier()) | ||
| { | ||
| mIdentifiers.add(getRadioIdentifier()); | ||
| } | ||
| mIdentifiers.add(getSystemIdentityCode().getNetwork()); | ||
| mIdentifiers.add(getSystemIdentityCode().getSite()); | ||
| } | ||
|
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||
| return mIdentifiers; | ||
| } | ||
| } |
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