From 2c0563a4f7d4c89551c23c13f17249b5f1b4665a Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Tue, 4 Feb 2020 22:33:53 -0800
Subject: Implement support for iButton

---
 .../java/org/traccar/protocol/SuntechProtocolDecoder.java | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index 915f764e1..7e520ab3a 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -614,10 +614,21 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_OUTPUT, buf.readUnsignedByte());
         }
 
+        int alertId = 0;
         if (BitUtil.check(mask, 19)) {
-            int value = buf.readUnsignedByte();
+            alertId = buf.readUnsignedByte();
             if (type == 0x82) {
-                position.set(Position.KEY_ALARM, decodeAlert(value));
+                position.set(Position.KEY_ALARM, decodeAlert(alertId));
+            }
+        }
+
+        if (BitUtil.check(mask, 20)) {
+            buf.readUnsignedShort(); // alert mod
+        }
+
+        if (BitUtil.check(mask, 21)) {
+            if (alertId == 59) {
+                position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(8)));
             }
         }
 
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