From 2c8f3ec81886f8d512088db307b7a4c5f5aee7a0 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Fri, 4 May 2018 00:20:00 +1200
Subject: Support T880X protocol

---
 src/org/traccar/protocol/T800xProtocolDecoder.java | 26 +++++++++++++++-------
 .../traccar/protocol/T800xProtocolDecoderTest.java |  6 +++++
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/src/org/traccar/protocol/T800xProtocolDecoder.java b/src/org/traccar/protocol/T800xProtocolDecoder.java
index 1fd37864e..a6a647f22 100644
--- a/src/org/traccar/protocol/T800xProtocolDecoder.java
+++ b/src/org/traccar/protocol/T800xProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -116,7 +116,7 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
             buf.readUnsignedShort(); // distance compensation
             buf.readUnsignedShort(); // speed alarm
 
-            int locationStatus = buf.readUnsignedByte();
+            int status = buf.readUnsignedByte();
 
             buf.readUnsignedByte(); // gsensor manager status
             buf.readUnsignedByte(); // other flags
@@ -151,9 +151,9 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
                     .setMinute(BcdUtil.readInteger(buf, 2))
                     .setSecond(BcdUtil.readInteger(buf, 2));
 
-            if (BitUtil.check(locationStatus, 6)) {
+            if (BitUtil.check(status, 6)) {
 
-                position.setValid(!BitUtil.check(locationStatus, 7));
+                position.setValid(!BitUtil.check(status, 7));
                 position.setTime(dateBuilder.getDate());
                 position.setAltitude(readSwappedFloat(buf));
                 position.setLongitude(readSwappedFloat(buf));
@@ -170,14 +170,24 @@ public class T800xProtocolDecoder extends BaseProtocolDecoder {
                 buf.readBytes(array);
                 ChannelBuffer swapped = ChannelBuffers.wrappedBuffer(ByteOrder.LITTLE_ENDIAN, array);
 
-                position.setNetwork(new Network(CellTower.from(
-                        swapped.readUnsignedShort(), swapped.readUnsignedShort(),
-                        swapped.readUnsignedShort(), swapped.readUnsignedShort())));
+                int mcc = swapped.readUnsignedShort();
+                int mnc = swapped.readUnsignedShort();
 
-                // two more cell towers
+                if (mcc != 0xffff && mnc != 0xffff) {
+                    Network network = new Network();
+                    for (int i = 0; i < 3; i++) {
+                        network.addCellTower(CellTower.from(
+                                mcc, mnc, swapped.readUnsignedShort(), swapped.readUnsignedShort()));
+                    }
+                    position.setNetwork(network);
+                }
 
             }
 
+            if (buf.readableBytes() >= 2) {
+                position.set(Position.KEY_POWER, BcdUtil.readInteger(buf, 4) * 0.01);
+            }
+
             return position;
 
         }
diff --git a/test/org/traccar/protocol/T800xProtocolDecoderTest.java b/test/org/traccar/protocol/T800xProtocolDecoderTest.java
index 0f311478f..fb8800a5c 100644
--- a/test/org/traccar/protocol/T800xProtocolDecoderTest.java
+++ b/test/org/traccar/protocol/T800xProtocolDecoderTest.java
@@ -10,6 +10,12 @@ public class T800xProtocolDecoderTest extends ProtocolTest {
 
         T800xProtocolDecoder decoder = new T800xProtocolDecoder(new T800xProtocol());
 
+        verifyNull(decoder, binary(
+                "252501001504050880061689888888111111250350"));
+
+        verifyPosition(decoder, binary(
+                "252502004400010880616898888888000A00FF2001000020409600989910101010055501550000101005050005051010050558866B4276D6E342912AB441111500051010"));
+
         verifyNull(decoder, binary(
                 "232301001500000880316890202968140197625020"));
 
-- 
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