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package com.github.jodersky.ace.jssc
import com.github.jodersky.ace.PhysicalLayer
import jssc.SerialPortEvent
import jssc.SerialPort
import jssc.SerialPortEventListener
import scala.concurrent._
import scala.concurrent.ExecutionContext.Implicits.global
import java.io.IOException
class Serial(
portName: String,
baudRate: Int = 9600,
dataBits: Int = SerialPort.DATABITS_8,
stopBits: Int = SerialPort.STOPBITS_1,
parity: Int = SerialPort.PARITY_NONE) extends PhysicalLayer {
private val port = new SerialPort(portName)
private val listener = new SerialPortEventListener {
override def serialEvent(event: SerialPortEvent) = {
if (event.isRXCHAR()) {
val bytes = port.readBytes
if (bytes != null) notifyHigher(bytes.map(_ & 0xff))
}
}
}
def send(data: Seq[Int]) = future {
port.writeBytes(data.toArray.map(_.toByte))
} map { success =>
if (success) data
else throw new IOException("Could not write to serial port.")
}
def begin() {
val mask = SerialPort.MASK_RXCHAR + SerialPort.MASK_CTS + SerialPort.MASK_DSR
port.openPort()
port.setParams(baudRate, dataBits, stopBits, parity)
port.setEventsMask(mask)
port.addEventListener(listener)
}
def close() = port.closePort()
}
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