public CC1101Radio(Mote m) {
this.mote = (MspMote) m;
Radio802154 r = this.mote.getCPU().getChip(Radio802154.class);
if (r == null || !(r instanceof CC1101)) {
throw new IllegalStateException("Mote is not equipped with an CC1101 radio");
}
this.cc1101 = (CC1101) r;
cc1101.addRFListener(
new RFListener() {
int len = 0;
int expLen = 0;
byte[] buffer = new byte[256 + 15];
private boolean gotSynchbyte = false;
public void receivedByte(byte data) {
if (!isTransmitting()) {
/* Start transmission */
lastEvent = RadioEvent.TRANSMISSION_STARTED;
isTransmitting = true;
len = 0;
gotSynchbyte = false;
/*logger.debug("----- CC1101 TRANSMISSION STARTED -----");*/
setChanged();
notifyObservers();
}
if (len >= buffer.length) {
/* Bad size packet, too large */
logger.debug("Error: bad size: " + len + ", dropping outgoing byte: " + data);
return;
}
/* send this byte to all nodes */
lastOutgoingByte = data;
lastEvent = RadioEvent.CUSTOM_DATA_TRANSMITTED;
setChanged();
notifyObservers();
/* Await synch byte */
if (!gotSynchbyte) {
if (lastOutgoingByte == CC1101.SYNCH_BYTE_LAST) {
gotSynchbyte = true;
}
return;
}
final int HEADERLEN = 1; /* 1x Length byte */
final int FOOTERLEN = 2; /* TODO Fix CRC in Mspsim's CC1101.java */
if (len == 0) {
expLen = (0xff & data) + HEADERLEN + FOOTERLEN;
}
buffer[len++] = data;
if (len == expLen) {
/*logger.debug("----- CC1101 CUSTOM DATA TRANSMITTED -----");*/
final byte[] buf = new byte[expLen];
System.arraycopy(buffer, 0, buf, 0, expLen);
lastOutgoingPacket =
new RadioPacket() {
public byte[] getPacketData() {
return buf;
}
};
lastEvent = RadioEvent.PACKET_TRANSMITTED;
/*logger.debug("----- CC1101 PACKET TRANSMITTED -----");*/
setChanged();
notifyObservers();
/*logger.debug("----- CC1101 TRANSMISSION FINISHED -----");*/
isTransmitting = false;
lastEvent = RadioEvent.TRANSMISSION_FINISHED;
setChanged();
notifyObservers();
len = 0;
}
}
});
cc1101.setReceiverListener(
new ReceiverListener() {
public void newState(boolean on) {
if (cc1101.isReadyToReceive()) {
lastEvent = RadioEvent.HW_ON;
setChanged();
notifyObservers();
} else {
radioOff();
}
}
});
cc1101.addChannelListener(
new ChannelListener() {
public void channelChanged(int channel) {
/* XXX Currently assumes zero channel switch time */
lastEvent = RadioEvent.UNKNOWN;
setChanged();
notifyObservers();
}
});
}
public int getFrequency() {
return cc1101.getActiveFrequency();
}
public boolean isRadioOn() {
return cc1101.isReadyToReceive();
}
public int getChannel() {
return cc1101.getActiveChannel();
}
