uint8_t RMAC_PutPayload(uint8_t *buf, size_t bufSize, uint8_t payloadSize, RPHY_FlagsType flags) {
if (flags&RPHY_PACKET_FLAGS_REQ_ACK) {
RMAC_BUF_TYPE(buf) = RMAC_MSG_TYPE_DATA|RMAC_MSG_TYPE_REQ_ACK;
} else {
RMAC_BUF_TYPE(buf) = RMAC_MSG_TYPE_DATA;
}
RMAC_ExpectedAckSeqNr = RMAC_SeqNr;
RMAC_BUF_SEQN(buf) = RMAC_SeqNr++;
return RPHY_PutPayload(buf, bufSize, payloadSize+RMAC_HEADER_SIZE, flags);
}
uint8_t RMAC_SendACK(RPHY_PacketDesc *packet) {
/* send an ack message back: this is is of type ack with src and dst address */
RMAC_BUF_TYPE(packet->data) = RMAC_MSG_TYPE_ACK; /* set type to ack */
/* use same sequence number as in the received package, so no change */
return RPHY_PutPayload(packet->data, packet->dataSize, RMAC_HEADER_SIZE+RNWK_HEADER_SIZE);
}
uint8_t RMAC_PutPayload(uint8_t *buf, size_t bufSize, uint8_t payloadSize) {
RMAC_BUF_TYPE(buf) = RMAC_MSG_TYPE_DATA;
RMAC_ExpectedAckSeqNr = RMAC_SeqNr;
RMAC_BUF_SEQN(buf) = RMAC_SeqNr++;
return RPHY_PutPayload(buf, bufSize, payloadSize+RMAC_HEADER_SIZE);
}
uint8_t RMAC_SendACK(RPHY_PacketDesc *rxPacket, RPHY_PacketDesc *ackPacket) {
RMAC_BUF_TYPE(ackPacket->phyData) = RMAC_MSG_TYPE_ACK; /* set type to ack */
RMAC_BUF_SEQN(ackPacket->phyData) = RMAC_BUF_SEQN(rxPacket->phyData);
/* use same sequence number as in the received package, so no change */
return RPHY_PutPayload(ackPacket->phyData, ackPacket->phySize, RMAC_HEADER_SIZE+RNWK_HEADER_SIZE, RPHY_PACKET_FLAGS_NONE);
}