Add $PSMDST

Same as $STALK

hooks/index.js

@@ -13,6 +13,7 @@ module.exports = {
   'HDT': require('./HDT.js'),
   'PBVE': require('./proprietary/PBVE.js'),
   'PNKEP': require('./proprietary/PNKEP.js'),
+  'PSMDST': require('./proprietary/PSMDST.js'),
   'MDA': require('./MDA.js'),
   'MTA': require('./MTA.js'),
   'MTW': require('./MTW.js'),

hooks/proprietary/PSMDST.js

@@ -0,0 +1,41 @@
+/**
+* Copyright 2016 Signal K <info@signalk.org> and contributors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict'
+
+/*
+0  1  2  3
+|  |  |  |
+$PSMDST,xx,yy,nn*CS
+where:
+PSMDST     	Raymarine Seatalk1 datagram sentence
+0 			00-9C       	Datagram type
+1 			hex       	First datagram content
+2 			hex   		Last datagram content
+3 			hex      	Checksum
+*/
+
+const seatalkHooks = require('../seatalk')
+
+module.exports = function(input, session) {
+  const { id, sentence, parts, tags } = input
+  const key = '0x' + (parts[0]).toUpperCase()
+  if (typeof seatalkHooks[key] === 'function'){
+    return seatalkHooks[key](input, session)
+  } else {
+    return null
+  }
+}