summaryrefslogtreecommitdiff
path: root/ebus-scala/src/main/scala
diff options
context:
space:
mode:
Diffstat (limited to 'ebus-scala/src/main/scala')
-rwxr-xr-xebus-scala/src/main/scala/org/xapek/ebus/Ebus.scala159
-rw-r--r--ebus-scala/src/main/scala/org/xapek/ebus/Layer2.scala251
-rw-r--r--ebus-scala/src/main/scala/org/xapek/ebus/Main.scala140
3 files changed, 0 insertions, 550 deletions
diff --git a/ebus-scala/src/main/scala/org/xapek/ebus/Ebus.scala b/ebus-scala/src/main/scala/org/xapek/ebus/Ebus.scala
deleted file mode 100755
index 5b61a5b..0000000
--- a/ebus-scala/src/main/scala/org/xapek/ebus/Ebus.scala
+++ /dev/null
@@ -1,159 +0,0 @@
-package org.xapek.ebus
-
-// This file contains the Ebus Layer 7 Implementation.
-// It depends on Layer 2 and the Ebus-Definition XML
-
-import Stream._
-import scala.xml.{XML, Elem, Node, NodeSeq}
-
-object EbusDevice {
- def apply(node : Node): EbusDevice = {
- new EbusDevice(
- Integer.parseInt(node.attribute("address").head.text, 16),
- node.attribute("type").head.text,
- node.attribute("name").head.text)
- }
-}
-class EbusDevice(val address:Int, val busType :String,
- val name: String) {
- override def toString() : String = "EbusDevice: address=0x%02x type=%s name=%s".format(
- address, busType, name)
-}
-
-class EbusL7Packet(val l2Packet: EbusL2Packet, val name: String, val fields: List[EbusL7Field[Any]]) {
- override def toString(): String = "EbusL7Packet: name=%s Fields: %s %s".format(
- name,
- fields.map(_.toString).toString,
- l2Packet.toString)
-}
-
-object EbusDefinition {
- def fromFile(ebusXMLPath : String) = {
- new EbusDefinition(XML.loadFile(ebusXMLPath))
- }
- private def parseHexNode(n: Node):Int = Integer.parseInt(n.text,16)
-}
-
-class EbusDefinition(val xml: Elem) {
- def packet(l2Packet: EbusL2Packet): Option[EbusL7Packet] = {
- packet(l2Packet.l2Header.primaryCommand, l2Packet.l2Header.secondaryCommand).map(node =>
- new EbusL7Packet(l2Packet, node.attribute("name").get.head.text, fields(node)))
- }
- def fields(packet: Node) : List[EbusL7Field[Any]] = {
- val fields = (packet \ "fields");
- val foo = fields.headOption.map(fields =>
- fields.child.map(child => EbusL7Field(child))
- ).getOrElse(Seq[EbusL7Field[Any]]()).filterNot(_ == null).toList
-
- println(foo)
- foo
- }
- def packet(primaryCommand: Int, secondaryCommand: Int): Option[Node] = {
- (xml \ "packets" \ "packet").filter(n =>
- n.attribute("primary").flatMap(_.headOption.map(EbusDefinition.parseHexNode)) == Some(primaryCommand) &&
- n.attribute("secondary").flatMap(_.headOption.map(EbusDefinition.parseHexNode)) == Some(secondaryCommand)
- ).headOption
- }
- def device(address: Int): Option[EbusDevice] = {
- (xml \ "devices" \ "device").filter(n =>
- n.attribute("address").flatMap(_.headOption.map(EbusDefinition.parseHexNode)) == Some(address)
- ).headOption.map(EbusDevice(_))
- }
-}
-
-
-
-object EbusL7Field {
- def apply(fieldNode: Node): EbusL7Field[Any] = {
- val name = fieldNode.attribute("name").headOption.map(_.text).getOrElse("")
- val offset = Integer.parseInt(fieldNode.attribute("offset").headOption.map(_.text).getOrElse("-1"))
- fieldNode.label match {
- case "data1b" => new EbusL7FieldData1b(name, offset)
- case "data1c" => new EbusL7FieldData1c(name, offset)
- case "#PCDATA" => null
- case _ => {
- // Ignore unknown fieldtypes
- null
- }
- }
- }
-}
-abstract class EbusL7Field[+T](val name: String, val offset: Int) {
- def value(payload: List[Int]): T
- override def toString(): String = {
- "%s: name=%s offset=%d".format(this.getClass().getSimpleName(), name, offset)
- }
-}
-
-class EbusL7FieldData1b(name: String, offset: Int) extends EbusL7Field[Int](name, offset) {
- def value(payload: List[Int]): Int = {
- /** Beispiel für die Berechnung:
- * if ((x & 80h) == 80h) // y negativ
- * y = - [dez(!x) + 1]
- * else
- * y = dez(x)
- */
- Some(payload(offset)).map(dataByte =>
- if ( (dataByte & 0x80) == 0x80 ) {// Wert negativ
- (-1) * (0xff ^ dataByte + 1)
- } else {
- dataByte
- }).get
- }
-}
-
-class EbusL7FieldData1c(name: String, offset: Int) extends EbusL7Field[Double](name, offset) {
- def value(payload: List[Int]): Double = {
- payload(offset) / 2.0
- }
-}
-
-// Bit
-object EbusDecoderBit {
- def value(payload: List[Int], offset: Int): Int = {
- if ( payload(offset) == 0x1)
- 1
- else
- 0
- }
-}
-
-object EbusDecoderWord {
- def value(payload: List[Int], offset: Int): Int = {
- val lb :: hb :: _ = payload.slice(offset, offset+2)
- lb + (hb << 8)
- }
-}
-
-object EbusDecoderBCD {
- def value(payload: List[Int], offset: Int): Int = {
- Some(payload(offset)).map( byte =>
- (byte >> 4) * 10 + (byte & 0xf)
- ).get
- }
-}
-
-/// Ebus Protocol Parser
-
-abstract class EbusL7Reader(val stream: Stream[Int], val ebusDefinition: EbusDefinition) {
- def l2Reader = new EbusL2Reader(stream) {
- override def onNewPacket(packet: EbusL2Packet): Unit = {
- EbusL7Reader.this.process(packet)
- }
- override def onException(exc: Exception): Unit = {
- EbusL7Reader.this.onException(exc)
- }
- }
-
- def run = l2Reader.run
-
- def process(l2Packet: EbusL2Packet): Unit = {
- println(ebusDefinition.packet(l2Packet))
- }
-
- def onNewPacket(packet: EbusL7Packet): Unit
- def onException(exc: Exception): Unit
-}
-
-class EbusL7ParseException(val message: String,
- val l2Packet: EbusL2Packet) extends Exception;
diff --git a/ebus-scala/src/main/scala/org/xapek/ebus/Layer2.scala b/ebus-scala/src/main/scala/org/xapek/ebus/Layer2.scala
deleted file mode 100644
index 7c0f1c6..0000000
--- a/ebus-scala/src/main/scala/org/xapek/ebus/Layer2.scala
+++ /dev/null
@@ -1,251 +0,0 @@
-package org.xapek.ebus
-
-// This file contains the Ebus Layer 2 Implementation. Layer 2 does
-// not depend on the Ebus-Definition XML
-//
-//
-// For reference see:
-//
-// - "eBUS Spezifikation Physikalische Schicht – OSI 1
-// Verbindungsschicht – OSI 2 V.1.3.1"
-//
-// - http://www.mikrocontroller.net/topic/75698
-
-import Stream._
-
-
-object EbusL2Protocol {
- def SYN = 0xaa
- def ACK_OK = 0x00
- def ACK_FAIL = 0xff
- val crcTab = List[Int](
- 0, 155, 173, 54, 193, 90, 108, 247, 25, 130, //0 -9
- 180, 47, 216, 67, 117, 238, 50, 169, 159, 4, //10-19
- 243, 104, 94, 197, 43, 176, 134, 29, 234, 113, //20
- 71, 220, 100, 255, 201, 82, 165, 62, 8, 147, //30
- 125, 230, 208, 75, 188, 39, 17, 138, 86, 205,
- 251, 96, 151, 12, 58, 161, 79, 212, 226, 121,
- 142, 21, 35, 184, 200, 83, 101, 254, 9, 146,
- 164, 63, 209, 74, 124, 231, 16, 139, 189, 38,
- 250, 97, 87, 204, 59, 160, 150, 13, 227, 120,
- 78, 213, 34, 185, 143, 20, 172, 55, 1, 154,
- 109, 246, 192, 91, 181, 46, 24, 131, 116, 239, //100
- 217, 66, 158, 5, 51, 168, 95, 196, 242, 105,
- 135, 28, 42, 177, 70, 221, 235, 112, 11, 144,
- 166, 61, 202, 81, 103, 252, 18, 137, 191, 36,
- 211, 72, 126, 229, 57, 162, 148, 15, 248, 99,
- 85, 206, 32, 187, 141, 22, 225, 122, 76, 215,
- 111, 244, 194, 89, 174, 53, 3, 152, 118, 237,
- 219, 64, 183, 44, 26, 129, 93, 198, 240, 107,
- 156, 7, 49, 170, 68, 223, 233, 114, 133, 30,
- 40, 179, 195, 88, 110, 245, 2, 153, 175, 52,
- 218, 65, 119, 236, 27, 128, 182, 45, 241, 106, //200
- 92, 199, 48, 171, 157, 6, 232, 115, 69, 222,
- 41, 178, 132, 31, 167, 60, 10, 145, 102, 253,
- 203, 80, 190, 37, 19, 136, 127, 228, 210, 73,
- 149, 14, 56, 163, 84, 207, 249, 98, 140, 23,
- 33, 186, 77, 214, 224, 123)
-
- def crc(data: List[Int]): Int = {
- data.foldLeft(0){ (crc,byte) => crcTab(crc) ^ byte}
- }
-}
-
-class EbusL2Header(val source: Int, val destination: Int,
- val primaryCommand: Int, val secondaryCommand: Int,
- val payloadLength: Int) {
- override def toString: String = {
- "L2Header: QQ=0x%02x ZZ=0x%02x PB=0x%02x SB=0x%02x NN=0x%02x".format(
- source, destination, primaryCommand, secondaryCommand, payloadLength)
- }
-}
-
-
-object EbusL2Packet {
- def PAYLOAD_LENGTH_MAX = 16
- /**
- * Wird von {@link EbusReader} mit einer Streamposition aufgerufen.
- * Ausgehend von dieser Position wird versucht ein Paket aufzubauen,
- * und anschliesend die Checksumme geprüft.
- * Im Erfolgsfall wird eine EbusL2Packet-Instanz als Option zurückgegen,
- * sonst None
- */
- def apply(stream: Stream[Int]): EbusL2Packet = {
- var mystream = stream
- var rawLength = 0
- def readBytes(n:Int, msg : String) : List[Int] = {
- val d = mystream.slice(rawLength,rawLength+n).toList
- rawLength = rawLength + n
-// println("RAW %15s: ".format(msg) + d.map((it) => "0x%02x".format(it)).reduceRight((s1,s2) => s1+","+s2))
- return d
- }
-
- def readPayloadByte(i:Int) : Int =
- readBytes(1, "payload " + i)(0) match {
- case 0xa9 => {
- readBytes(1, "payload esc "+i)(0) match {
- case 0x00 => 0xa9
- case 0x01 => 0xaa
- case code : Int => {
- throw new EbusL2ParseException("Invalid escape sequence (0xa9 0x%02x)".format(code),
- stream.slice(0, rawLength).toList, rawLength);
- }
- }
- }
- case value : Int => value
- }
-
- val source :: destination :: primaryCommand :: secondaryCommand :: payloadLength :: _ = readBytes(5, "QQ|ZZ|PB|SB|NN")
- val l2Header = new EbusL2Header(source, destination, primaryCommand, secondaryCommand, payloadLength)
-
- // Maximale payload Grösse = 16 Byte
- if (payloadLength > PAYLOAD_LENGTH_MAX) {
- throw new EbusL2ParseException("Erkannte payload Groesse zu gross: %d".format(payloadLength),
- stream.slice(0, rawLength).toList, rawLength);
- } else if (payloadLength == 0) {
- // Unklar
- throw new EbusL2ParseException("Skip packet with payloadLength = 0",
- stream.slice(0, rawLength).toList, rawLength + 1);
- }
-
- val payload = Range(0,payloadLength).map(readPayloadByte).toList
-
- val crc = readBytes(1,"CRC")(0)
- val crcCalc = EbusL2Protocol.crc(List(source, destination, primaryCommand, secondaryCommand, payloadLength) ++ payload)
- if (crc != crcCalc) {
- throw new EbusL2ParseException("CRC mismatch (read) 0x%02x != 0x%02x (calc)".format(crc, crcCalc),
- stream.slice(0, rawLength).toList, rawLength + 1);
- }
-
- // Broadcast Packet ends here
- if (destination == 0xfe) {
- val syn = readBytes(1,"SYN(broadcast)")(0)
- if (syn != EbusL2Protocol.SYN) {
- throw new EbusL2ParseException("Bad SYN: 0x%02x".format(syn),
- stream.slice(0, rawLength).toList, rawLength);
- }
- return new EbusL2MasterMasterPacket(l2Header, payload, crc, rawLength)
- }
-
- val ack = readBytes(1,"ACK")(0)
-
- val syn = readBytes(1, "SYN/NN2")(0)
- // Master-Master Packet ends here
- if (syn == EbusL2Protocol.SYN) {
- if (ack != EbusL2Protocol.ACK_OK) {
- throw new EbusL2ParseException("Bad ACK: 0x%02x".format(ack),
- stream.slice(0, rawLength).toList, rawLength);
- }
- return new EbusL2MasterMasterPacket(l2Header, payload, crc, rawLength)
- }
-
- // otherwise this is a Master-Slave Telegramm
- // and syn is payloadSlave length
- val payloadSlaveLength = syn
- if (payloadSlaveLength > PAYLOAD_LENGTH_MAX) {
- throw new EbusL2ParseException("payloadSlaveLength > 16: 0x%02x".format(payloadSlaveLength),
- stream.slice(0, rawLength).toList, rawLength);
- }
-
- val payloadSlave = Range(0,payloadSlaveLength).map(readPayloadByte).toList
-
- val crcSlave = readBytes(1,"crcSlave")(0)
- val crcSlaveCalc = EbusL2Protocol.crc(List(payloadSlaveLength) ++ payloadSlave)
- if (crcSlave != crcSlaveCalc) {
- throw new EbusL2ParseException("CRC mismatch (read) 0x%02x != 0x%02x (calc)".format(crcSlave, crcSlaveCalc),
- stream.slice(0, rawLength).toList, rawLength);
- }
-
- val ackSlave = readBytes(1,"ACKslave")(0)
- if (ackSlave != EbusL2Protocol.ACK_OK) {
- throw new EbusL2ParseException("Master-Slave ACK nicht 0x00 sondern 0x%02x".format(ackSlave),
- stream.slice(0, rawLength).toList, rawLength);
- }
-
- val synSlave= readBytes(1,"SYNslave")(0)
- if (synSlave != EbusL2Protocol.SYN) {
- throw new EbusL2ParseException("Master-Slave SYN nicht 0xaa sondern 0x%02x".format(synSlave),
- stream.slice(0, rawLength).toList, rawLength);
- }
-
- return new EbusL2MasterSlavePacket(l2Header, payload, crc,
- payloadSlaveLength, payloadSlave,
- crcSlave, rawLength);
- }
-}
-
-
-abstract class EbusL2Packet(val l2Header : EbusL2Header,
- val payload: List[Int],
- val crc: Int,
- val rawLength: Int) {
- override def toString: String = {
- val p = payload.map(a => "%02x".format(a.toInt)).reduceLeft((a: Any, b: String) => a + " " + b)
- "L2Packet: (%s) payload=%s CRC=0x%02x rawLength=%d".format(
- l2Header.toString, p, crc, rawLength)
- }
-}
-
-class EbusL2MasterMasterPacket(l2Header : EbusL2Header,
- payload: List[Int],
- crc: Int,
- rawLength : Int) extends EbusL2Packet(l2Header,
- payload,
- crc,
- rawLength);
-
-class EbusL2BroadcastPacket(l2Header : EbusL2Header,
- payload: List[Int],
- crc: Int,
- rawLength : Int) extends EbusL2Packet(l2Header,
- payload,
- crc,
- rawLength);
-
-class EbusL2MasterSlavePacket(l2Header: EbusL2Header,
- payload: List[Int],
- crc: Int,
- val payloadSlaveLength: Int,
- val payloadSlave: List[Int],
- val crcSlave: Int,
- rawLength: Int) extends EbusL2Packet(l2Header,
- payload,
- crc,
- rawLength);
-
-class EbusL2ParseException(val message: String,
- val data: List[Int],
- val skipbytes: Int) extends Exception;
-
-class EbusL2Reader(var stream : Stream[Int]) {
- def onNewPacket(packet: EbusL2Packet): Unit = {}
-
- def onException(exc: Exception): Unit = {
- throw exc
- }
-
- def run(): Unit = {
- // Überspringe Angeschnittene Pakete Synchronisieren auf neues
- // Paket
- while (stream(0) != EbusL2Protocol.SYN) {
- stream = stream.drop(1)
- }
-
- while (true) {
- // Überspringe Synchronisationszeichen
- stream = stream.dropWhile(_ == EbusL2Protocol.SYN)
-
- try {
- val packet = EbusL2Packet(stream)
- stream = stream.drop(packet.rawLength)
-
- onNewPacket(packet)
- } catch {
- case exc : EbusL2ParseException => {
- stream = stream.drop(exc.skipbytes)
- onException(exc)
- }
- }
- }
- }
-}
diff --git a/ebus-scala/src/main/scala/org/xapek/ebus/Main.scala b/ebus-scala/src/main/scala/org/xapek/ebus/Main.scala
deleted file mode 100644
index 4643bcd..0000000
--- a/ebus-scala/src/main/scala/org/xapek/ebus/Main.scala
+++ /dev/null
@@ -1,140 +0,0 @@
-package org.xapek.ebus
-
-import java.io.{InputStream, EOFException}
-import java.net.{InetAddress, InetSocketAddress, Socket}
-import Stream._
-
-object Main {
- val ebusDefinition = EbusDefinition.fromFile("../ebus-xml/ebus.xml")
-
- def getStream(source: InputStream):Stream[Int] = {
- Stream.continually({
- val value = source.read
- if (value == -1)
- throw new EOFException("End of File reached (read returned -1)")
- value
- })
- }
-
- def layer2(source: InputStream): Unit = {
- var stream = getStream(source)
- val reader = new EbusL2Reader(stream) {
- override def onNewPacket(packet: EbusL2Packet): Unit = {
- println(packet)
- }
- override def onException(exc: Exception): Unit = {
- exc match {
- case exc: EbusL2ParseException =>
- println("Exception: " + exc.message + "\n\tData: " +
- exc.data.map((it) => "0x%02x".format(it)).reduceRight((s1,s2) => s1+","+s2))
- case exc =>
- throw exc
- }
- }
- }
- while (true) {
- try {
- reader.run
- } catch {
- case exc: EOFException => {
- source.close
- return
- }
- case exc=> {
- exc.printStackTrace()
- source.close
- return
- }
- }
- }
- }
-
- def layer7(source: InputStream, ebusDefinition: EbusDefinition): Unit = {
- var stream = getStream(source)
- val reader = new EbusL7Reader(stream, ebusDefinition) {
- override def onNewPacket(packet: EbusL7Packet): Unit = {
- println(packet)
- }
- override def onException(exc: Exception): Unit = {
- exc match {
- case exc: EbusL2ParseException =>
- println("L2 Exception: " + exc.message + "\n\tData: " +
- exc.data.map((it) => "0x%02x".format(it)).reduceRight((s1,s2) => s1+","+s2))
- case exc: EbusL7ParseException =>
- println("L7 Exception: " + exc.message + "\n\tL2 Packet: " + exc.l2Packet)
- case exc =>
- exc.printStackTrace
- }
- }
- }
- while (true) {
- try {
- reader.run
- } catch {
- case exc: EOFException => {
- source.close
- return
- }
- case exc=> {
- exc.printStackTrace()
- source.close
- return
- }
- }
- }
-
- }
-
- def connect(host: String, port: Int): Socket = {
- val addr = InetAddress.getByName(host)
- val s = new Socket
- s.connect(new InetSocketAddress(addr, port))
- println("Connected to %s:%d".format(host, port))
- s
- }
-
- def main(args: Array[String]): Unit = {
- args.toList match {
- case "layer2" :: "-" :: List() => {
- println("Read from stdin")
- layer2(System.in)
- }
- case "layer2" :: host :: port :: List() => {
- layer2(connect(host, port.toInt).getInputStream)
- }
- case "layer7" :: "-" :: List() => {
- println("Read from stdin")
- layer7(System.in, ebusDefinition)
- }
- case "dump" :: host :: port :: List() => {
- val s = connect(host, port.toInt)
- while (true) {
- val v = s.getInputStream.read
- if (v == -1) {
- println("Fehler: read == -1")
- System.exit(1)
- }
- System.out.write(v)
- }
- }
- case _ => {
- println(
- """Usage: PROGRAM <ARGUMENTS>
- ARGUMENTS:
- > layer2 -
- Parse Ebus Layer 2 from stdin
-
- > layer2 HOST PORT
- Parse Ebus Layer 2 from TCP Connection
-
- > layer7 -
- Parse Ebus Layer 2+7 from stdin
-
- > dump HOST PORT
- Read and Dump TCP Connection
- """)
- }
- }
- }
-}
-