/**
\brief Indicate some (non-ACK) packet was received from a neighbor.
This function should be called for each received (non-ACK) packet so neighbor
statistics in the neighbor table can be updated.
The fields which are updated are:
- numRx
- rssi
- asn
- stableNeighbor
- switchStabilityCounter
\param[in] l2_src MAC source address of the packet, i.e. the neighbor who sent
the packet just received.
\param[in] rssi RSSI with which this packet was received.
\param[in] asnTs ASN at which this packet was received.
\param[in] joinPrioPresent Whether a join priority was present in the received
packet.
\param[in] joinPrio The join priority present in the packet, if any.
*/
void neighbors_indicateRx(open_addr_t* l2_src,
int8_t rssi,
asn_t* asnTs,
bool joinPrioPresent,
uint8_t joinPrio) {
uint8_t i;
bool newNeighbor;
// update existing neighbor
newNeighbor = TRUE;
for (i=0;i<MAXNUMNEIGHBORS;i++) {
if (isThisRowMatching(l2_src,i)) {
// this is not a new neighbor
newNeighbor = FALSE;
// update numRx, rssi, asn
neighbors_vars.neighbors[i].numRx++;
neighbors_vars.neighbors[i].rssi=rssi;
memcpy(&neighbors_vars.neighbors[i].asn,asnTs,sizeof(asn_t));
//update jp
if (joinPrioPresent==TRUE){
neighbors_vars.neighbors[i].joinPrio=joinPrio;
}
// update stableNeighbor, switchStabilityCounter
if (neighbors_vars.neighbors[i].stableNeighbor==FALSE) {
if (neighbors_vars.neighbors[i].rssi>BADNEIGHBORMAXRSSI) {
neighbors_vars.neighbors[i].switchStabilityCounter++;
if (neighbors_vars.neighbors[i].switchStabilityCounter>=SWITCHSTABILITYTHRESHOLD) {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
neighbors_vars.neighbors[i].stableNeighbor=TRUE;
}
} else {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
}
} else if (neighbors_vars.neighbors[i].stableNeighbor==TRUE) {
if (neighbors_vars.neighbors[i].rssi<GOODNEIGHBORMINRSSI) {
neighbors_vars.neighbors[i].switchStabilityCounter++;
if (neighbors_vars.neighbors[i].switchStabilityCounter>=SWITCHSTABILITYTHRESHOLD) {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
neighbors_vars.neighbors[i].stableNeighbor=FALSE;
}
} else {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
}
}
// stop looping
break;
}
}
// register new neighbor
if (newNeighbor==TRUE) {
registerNewNeighbor(l2_src, rssi, asnTs, joinPrioPresent,joinPrio);
}
}
void neighbors_indicateRx(open_addr_t* l2_src,
int8_t rssi,
asn_t* asnTimestamp) {
uint8_t i=0;
while (i<MAXNUMNEIGHBORS) {
if (isThisRowMatching(l2_src,i)) {
neighbors_vars.neighbors[i].numRx++;
neighbors_vars.neighbors[i].rssi=rssi;
memcpy(&neighbors_vars.neighbors[i].asn,asnTimestamp,sizeof(asn_t));
if (neighbors_vars.neighbors[i].stableNeighbor==FALSE) {
if (neighbors_vars.neighbors[i].rssi>BADNEIGHBORMAXRSSI) {
neighbors_vars.neighbors[i].switchStabilityCounter++;
if (neighbors_vars.neighbors[i].switchStabilityCounter>=SWITCHSTABILITYTHRESHOLD) {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
neighbors_vars.neighbors[i].stableNeighbor=TRUE;
}
} else {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
}
} else if (neighbors_vars.neighbors[i].stableNeighbor==TRUE) {
if (neighbors_vars.neighbors[i].rssi<GOODNEIGHBORMINRSSI) {
neighbors_vars.neighbors[i].switchStabilityCounter++;
if (neighbors_vars.neighbors[i].switchStabilityCounter>=SWITCHSTABILITYTHRESHOLD) {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
neighbors_vars.neighbors[i].stableNeighbor=FALSE;
}
} else {
neighbors_vars.neighbors[i].switchStabilityCounter=0;
}
}
return;
}
i++;
}
// this is a new neighbor: register
registerNewNeighbor(l2_src, rssi, asnTimestamp);
}