void RfidReaderMac::addGenericHeader(PacketPtr packet,
NodeId receiverId) const
{
RfidReaderMacDataPtr macData = RfidReaderMacData::create();
macData->setType(RfidReaderMacData::Types_Generic);
macData->setSenderId(getNode()->getNodeId());
macData->setReceiverId(receiverId);
packet->addData(Packet::DataTypes_Link, *macData);
}
void RfidReaderMac::addSelectHeader(PacketPtr packet,
NodeId receiverId) const
{
RfidReaderMacDataPtr macData = RfidReaderMacData::create();
macData->setType(RfidReaderMacData::Types_Select);
macData->setSenderId(getNode()->getNodeId());
macData->setReceiverId(receiverId);
packet->setDoMaxTxPower(true);
packet->addData(Packet::DataTypes_Link, *macData);
}
PacketPtr RfidReaderMac::createAckPacket(NodeId destination) const
{
RfidReaderMacDataPtr macData = RfidReaderMacData::create();
macData->setType(RfidReaderMacData::Types_Ack);
macData->setSenderId(getNode()->getNodeId());
macData->setReceiverId(destination);
PacketPtr packet = Packet::create();
packet->setDoMaxTxPower(true);
packet->addData(Packet::DataTypes_Link, *macData);
return packet;
}
PacketPtr RfidReaderMac::createRequestPacket() const
{
RfidReaderMacDataPtr macData = RfidReaderMacData::create();
macData->setType(RfidReaderMacData::Types_Request);
macData->setSenderId(getNode()->getNodeId());
macData->setReceiverId(NodeId::broadcastDestination());
// We must have at least: (1) a contention slot,
// (2) a slot for the SELECT to be sent by the ready,
// (3) a slot for the tag to reply with an app packet,
// (4) a slot for the reader to reply with an ACK.
assert(m_nextCycleNumberOfSlots >= 4);
macData->setNumberOfSlots(m_nextCycleNumberOfSlots);
PacketPtr packet = Packet::create();
assert(m_currentAppReadPacket.get() != 0);
packet->setTxPower(m_currentAppReadPacket->getTxPower());
packet->addData(Packet::DataTypes_Link, *macData);
return packet;
}