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RF24Mesh.cpp
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RF24Mesh.cpp
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#include "RF24Mesh.h"
#include "RF24Mesh_config.h"
#if defined (__linux) && !defined(__ARDUINO_X86__)
#include <fstream>
#endif
RF24Mesh::RF24Mesh( RF24& _radio,RF24Network& _network ): radio(_radio),network(_network){}
/*****************************************************/
bool RF24Mesh::begin(uint8_t channel, rf24_datarate_e data_rate, uint32_t timeout){
//delay(1); // Found problems w/SPIDEV & ncurses. Without this, getch() returns a stream of garbage
radio.begin();
radio_channel = channel;
radio.setChannel(radio_channel);
radio.setDataRate(data_rate);
network.returnSysMsgs = 1;
if(getNodeID()){ //Not master node
mesh_address = MESH_DEFAULT_ADDRESS;
if(!renewAddress(timeout)){
return 0;
}
}else{
#if !defined (RF24_TINY) && !defined(MESH_NOMASTER)
addrList = (addrListStruct*)malloc(2 * sizeof(addrListStruct));
addrListTop = 0;
loadDHCP();
#endif
mesh_address = 0;
network.begin(mesh_address);
}
return 1;
}
/*****************************************************/
uint8_t RF24Mesh::update(){
uint8_t type = network.update();
if(mesh_address == MESH_DEFAULT_ADDRESS){ return type; }
#if !defined (RF24_TINY) && !defined(MESH_NOMASTER)
if(type == NETWORK_REQ_ADDRESS){
doDHCP = 1;
}
if(!getNodeID()){
if( (type == MESH_ADDR_LOOKUP || type == MESH_ID_LOOKUP)) {
RF24NetworkHeader& header = *(RF24NetworkHeader*)network.frame_buffer;
header.to_node = header.from_node;
if(type==MESH_ADDR_LOOKUP){
int16_t returnAddr = getAddress(network.frame_buffer[sizeof(RF24NetworkHeader)]);
network.write(header,&returnAddr,sizeof(returnAddr));
}else{
int16_t returnAddr = getNodeID(network.frame_buffer[sizeof(RF24NetworkHeader)]);
network.write(header,&returnAddr,sizeof(returnAddr));
}
//printf("Returning lookup 0%o to 0%o \n",returnAddr,header.to_node);
//network.write(header,&returnAddr,sizeof(returnAddr));
}else
if(type == MESH_ADDR_RELEASE ){
uint16_t *fromAddr = (uint16_t*)network.frame_buffer;
for(uint8_t i=0; i<addrListTop; i++){
if(addrList[i].address == *fromAddr){
addrList[i].address = 0;
}
}
}
#if !defined (ARDUINO_ARCH_AVR)
else
if(type == MESH_ADDR_CONFIRM ){
RF24NetworkHeader& header = *(RF24NetworkHeader*)network.frame_buffer;
if(header.from_node == lastAddress){
setAddress(lastID,lastAddress);
}
}
#endif
}
#endif
return type;
}
bool RF24Mesh::write(uint16_t to_node, const void* data, uint8_t msg_type, size_t size ){
if(mesh_address == MESH_DEFAULT_ADDRESS){ return 0; }
RF24NetworkHeader header(to_node,msg_type);
return network.write(header,data,size);
}
/*****************************************************/
bool RF24Mesh::write(const void* data, uint8_t msg_type, size_t size, uint8_t nodeID){
if(mesh_address == MESH_DEFAULT_ADDRESS){ return 0; }
int16_t toNode = 0;
int32_t lookupTimeout = millis()+ MESH_LOOKUP_TIMEOUT;
uint32_t retryDelay = 50;
if(nodeID){
while( (toNode=getAddress(nodeID)) < 0 ){
if(millis() > lookupTimeout || toNode == -2){
return 0;
}
retryDelay+=50;
delay(retryDelay);
}
}
return write(toNode,data,msg_type,size);
}
/*****************************************************/
void RF24Mesh::setChannel(uint8_t _channel){
radio_channel = _channel;
radio.setChannel(radio_channel);
radio.startListening();
}
/*****************************************************/
void RF24Mesh::setChild(bool allow){
//Prevent old versions of RF24Network from throwing an error
//Note to remove this ""if defined"" after a few releases from 1.0.1
#if defined FLAG_NO_POLL
network.networkFlags = allow ? network.networkFlags & ~FLAG_NO_POLL : network.networkFlags | FLAG_NO_POLL;
#endif
}
/*****************************************************/
bool RF24Mesh::checkConnection(){
uint8_t count = 3;
bool ok = 0;
while(count-- && mesh_address != MESH_DEFAULT_ADDRESS){
update();
if(radio.rxFifoFull() || (network.networkFlags & 1)){
return 1;
}
RF24NetworkHeader header(00,NETWORK_PING);
ok = network.write(header,0,0);
if(ok){break;}
delay(103);
}
if(!ok){ radio.stopListening(); }
return ok;
}
/*****************************************************/
int16_t RF24Mesh::getAddress(uint8_t nodeID){
//#if defined (ARDUINO_SAM_DUE) || defined (__linux)
#if !defined RF24_TINY && !defined(MESH_NOMASTER)
if(!getNodeID()){ //Master Node
uint16_t address = 0;
for(uint8_t i=0; i<addrListTop; i++){
if(addrList[i].nodeID == nodeID){
address = addrList[i].address;
return address;
}
}
return -1;
}
#endif
if(mesh_address == MESH_DEFAULT_ADDRESS){ return -1; }
if(!nodeID){return 0;}
RF24NetworkHeader header( 00, MESH_ADDR_LOOKUP );
if(network.write(header,&nodeID,sizeof(nodeID)+1) ){
uint32_t timer=millis(), timeout = 150;
while(network.update() != MESH_ADDR_LOOKUP){
if(millis()-timer > timeout){ return -1; }
}
}else{
return -1;
}
int16_t address = 0;
memcpy(&address,network.frame_buffer+sizeof(RF24NetworkHeader),sizeof(address));
return address >= 0 ? address: -2;
}
int16_t RF24Mesh::getNodeID(uint16_t address){
if(address == MESH_BLANK_ID){
return _nodeID;
}else
if(address == 0){
return 0;
}
if(!mesh_address){ //Master Node
for(uint8_t i=0; i<addrListTop; i++){
if(addrList[i].address == address){
return addrList[i].nodeID;
}
}
}else{
if(mesh_address == MESH_DEFAULT_ADDRESS){ return -1; }
RF24NetworkHeader header( 00, MESH_ID_LOOKUP );
if(network.write(header,&address,sizeof(address)) ){
uint32_t timer=millis(), timeout = 500;
while(network.update() != MESH_ID_LOOKUP){
if(millis()-timer > timeout){ return -1; }
}
int16_t ID;
memcpy(&ID,&network.frame_buffer[sizeof(RF24NetworkHeader)],sizeof(ID));
return ID;
}
}
return -1;
}
/*****************************************************/
bool RF24Mesh::releaseAddress(){
if(mesh_address == MESH_DEFAULT_ADDRESS){ return 0; }
RF24NetworkHeader header(00,MESH_ADDR_RELEASE);
if(network.write(header,0,0)){
network.begin(MESH_DEFAULT_ADDRESS);
mesh_address=MESH_DEFAULT_ADDRESS;
return 1;
}
return 0;
}
/*****************************************************/
uint16_t RF24Mesh::renewAddress(uint32_t timeout){
if(radio.available()){ return 0; }
uint8_t reqCounter = 0;
uint8_t totalReqs = 0;
radio.stopListening();
network.networkFlags |= 2;
delay(10);
network.begin(MESH_DEFAULT_ADDRESS);
mesh_address = MESH_DEFAULT_ADDRESS;
uint32_t start = millis();
while(!requestAddress(reqCounter)){
if(millis()-start > timeout){ return 0; }
delay(50 + ( (totalReqs+1)*(reqCounter+1)) * 2);
(++reqCounter) = reqCounter%4;
(++totalReqs) = totalReqs%10;
}
network.networkFlags &= ~2;
return mesh_address;
}
/*****************************************************/
bool RF24Mesh::requestAddress(uint8_t level){
RF24NetworkHeader header( 0100, NETWORK_POLL );
//Find another radio, starting with level 0 multicast
#if defined (MESH_DEBUG_SERIAL)
Serial.print( millis() ); Serial.println(F(" MSH: Poll "));
#endif
network.multicast(header,0,0,level);
uint32_t timr = millis();
#define MESH_MAXPOLLS 4
uint16_t contactNode[MESH_MAXPOLLS];
uint8_t pollCount=0;
while(1){
#if defined (MESH_DEBUG_SERIAL) || defined (MESH_DEBUG_PRINTF)
bool goodSignal = radio.testRPD();
#endif
if(network.update() == NETWORK_POLL){
memcpy(&contactNode[pollCount],&network.frame_buffer[0],sizeof(uint16_t));
++pollCount;
#if defined (MESH_DEBUG_SERIAL) || defined (MESH_DEBUG_PRINTF)
if(goodSignal){
// This response was better than -64dBm
#if defined (MESH_DEBUG_SERIAL)
Serial.print( millis() ); Serial.println(F(" MSH: Poll > -64dbm "));
#elif defined (MESH_DEBUG_PRINTF)
printf( "%u MSH: Poll > -64dbm\n", millis() );
#endif
}else{
#if defined (MESH_DEBUG_SERIAL)
Serial.print( millis() ); Serial.println(F(" MSH: Poll < -64dbm "));
#elif defined (MESH_DEBUG_PRINTF)
printf( "%u MSH: Poll < -64dbm\n", millis() );
#endif
}
#endif
}
if(millis() - timr > 55 || pollCount >= MESH_MAXPOLLS ){
if(!pollCount){
#if defined (MESH_DEBUG_SERIAL)
Serial.print( millis() ); Serial.print(F(" MSH: No poll from level "));Serial.println(level);
#elif defined (MESH_DEBUG_PRINTF)
printf( "%u MSH: No poll from level %d\n", millis(), level);
#endif
return 0;
}else{
#if defined (MESH_DEBUG_SERIAL)
Serial.print( millis() ); Serial.println(F(" MSH: Poll OK "));
#elif defined (MESH_DEBUG_PRINTF)
printf( "%u MSH: Poll OK\n", millis() );
#endif
break;
}
}
}
#ifdef MESH_DEBUG_SERIAL
Serial.print( millis() ); Serial.print(F(" MSH: Got poll from level ")); Serial.print(level);
Serial.print(F(" count "));Serial.println(pollCount);
#elif defined MESH_DEBUG_PRINTF
printf("%u MSH: Got poll from level %d count %d\n",millis(),level,pollCount);
#endif
uint8_t type=0;
for(uint8_t i=0; i<pollCount; i++){
// Request an address via the contact node
header.type = NETWORK_REQ_ADDRESS;
header.reserved = getNodeID();
header.to_node = contactNode[i];
// Do a direct write (no ack) to the contact node. Include the nodeId and address.
network.write(header,0,0,contactNode[i]);
#ifdef MESH_DEBUG_SERIAL
Serial.print( millis() ); Serial.print(F(" MSH: Req addr from ")); Serial.println(contactNode[i],OCT);
#elif defined MESH_DEBUG_PRINTF
printf("%u MSH: Request address from: 0%o\n",millis(),contactNode[i]);
#endif
timr = millis();
while(millis()-timr<225){
if( (type = network.update()) == NETWORK_ADDR_RESPONSE){
i=pollCount;
break;
}
}
delay(5);
}
if(type != NETWORK_ADDR_RESPONSE){
return 0;
}
//Serial.print("response took");
//Serial.println(millis()-timr);
#ifdef MESH_DEBUG_SERIAL
uint8_t mask = 7; char addrs[5] = " ", count=3; uint16_t newAddr;
#endif
uint8_t registerAddrCount = 0;
uint16_t newAddress=0;
//memcpy(&addrResponse,network.frame_buffer+sizeof(RF24NetworkHeader),sizeof(addrResponse));
memcpy(&newAddress,network.frame_buffer+sizeof(RF24NetworkHeader),sizeof(newAddress));
if(!newAddress || network.frame_buffer[7] != getNodeID() ){
#ifdef MESH_DEBUG_SERIAL
Serial.print(millis()); Serial.print(F(" MSH: Attempt Failed ")); Serial.println(network.frame_buffer[7]);
Serial.print("My NodeID ");Serial.println(getNodeID());
#elif defined MESH_DEBUG_PRINTF
printf("%u Response discarded, wrong node 0%o from node 0%o sending node 0%o id %d\n",millis(),newAddress,header.from_node,MESH_DEFAULT_ADDRESS,network.frame_buffer[7]);
#endif
return 0;
}
#ifdef MESH_DEBUG_SERIAL
Serial.print( millis() );Serial.print(F(" Set address: "));
newAddr = newAddress;
while(newAddr){
addrs[count] = (newAddr & mask)+48; //get the individual Octal numbers, specified in chunks of 3 bits, convert to ASCII by adding 48
newAddr >>= 3;
count--;
}
Serial.println(addrs);
#elif defined (MESH_DEBUG_PRINTF)
printf("Set address 0%o rcvd 0%o\n",mesh_address,newAddress);
#endif
mesh_address = newAddress;
radio.stopListening();
delay(10);
network.begin(mesh_address);
header.to_node = 00;
header.type = MESH_ADDR_CONFIRM;
while( !network.write(header,0,0) ){
if(registerAddrCount++ >= 6 ){
network.begin(MESH_DEFAULT_ADDRESS);
mesh_address = MESH_DEFAULT_ADDRESS;
return 0;
}
delay(3);
}
return 1;
}
/*****************************************************/
/*
bool RF24Mesh::waitForAvailable(uint32_t timeout){
unsigned long timer = millis();
while(millis()-timer < timeout){
network.update();
if(network.available()){ return 1; }
}
if(network.available()){ return 1; }
else{ return 0; }
}
*/
/*****************************************************/
void RF24Mesh::setNodeID(uint8_t nodeID){
_nodeID = nodeID;
}
/*****************************************************/
void RF24Mesh::setStaticAddress(uint8_t nodeID, uint16_t address){
setAddress(nodeID,address);
}
/*****************************************************/
void RF24Mesh::setAddress(uint8_t nodeID, uint16_t address){
uint8_t position = addrListTop;
for(uint8_t i=0; i<addrListTop; i++){
if( addrList[i].nodeID == nodeID){
position = i;
break;
}
}
addrList[position].nodeID = nodeID;
addrList[position].address = address;
if(position == addrListTop){
++addrListTop;
addrList = (addrListStruct*)realloc(addrList,(addrListTop + 1) * sizeof(addrListStruct));
}
#if defined (__linux) && !defined(__ARDUINO_X86__)
//if(millis()-lastFileSave > 300){
// lastFileSave = millis();
saveDHCP();
//}
#endif
}
/*****************************************************/
void RF24Mesh::loadDHCP(){
#if defined (__linux) && !defined(__ARDUINO_X86__)
std::ifstream infile ("dhcplist.txt",std::ifstream::binary);
if(!infile){ return; }
addrList[addrListTop].nodeID = 255;
addrList[addrListTop].address = 01114;
infile.seekg(0,infile.end);
int length = infile.tellg();
infile.seekg(0,infile.beg);
addrList = (addrListStruct*)realloc(addrList,length + sizeof(addrListStruct));
addrListTop = length/sizeof(addrListStruct);
for(int i=0; i<addrListTop; i++){
infile.read( (char*)&addrList[i],sizeof(addrListStruct));
}
infile.close();
#endif
}
/*****************************************************/
void RF24Mesh::saveDHCP(){
#if defined (__linux) && !defined(__ARDUINO_X86__)
std::ofstream outfile ("dhcplist.txt",std::ofstream::binary | std::ofstream::trunc);
//printf("writingToFile %d 0%o size %d\n",addrList[0].nodeID,addrList[0].address,sizeof(addrListStruct));
for(int i=0; i< addrListTop; i++){
outfile.write( (char*)&addrList[i],sizeof(addrListStruct));
}
outfile.close();
/*addrListStruct aList;
std::ifstream infile ("dhcplist.txt",std::ifstream::binary);
infile.seekg(0,infile.end);
int length = infile.tellg();
infile.seekg(0,infile.beg);
//addrList = (addrListStruct*)malloc(length);
//infile.read( (char*)&addrList,length);
infile.read( (char*)&aList,sizeof(addrListStruct));
//addrListTop = length/sizeof(addrListStruct);
//for(int i=0; i< addrListTop; i++){
printf("ID: %d ADDR: 0%o \n",aList.nodeID,aList.address);
//}
infile.close();*/
#endif
}
/*****************************************************/
#if !defined (RF24_TINY) && !defined(MESH_NOMASTER)
void RF24Mesh::DHCP(){
if(doDHCP){
doDHCP = 0;
}else{ return; }
RF24NetworkHeader header;
memcpy(&header,network.frame_buffer,sizeof(RF24NetworkHeader));
uint16_t newAddress;
// Get the unique id of the requester
uint8_t from_id = header.reserved;
if(!from_id){
#ifdef MESH_DEBUG_PRINTF
printf("MSH: Invalid id 0 rcvd\n");
#endif
return;
}
uint16_t fwd_by = 0;
uint8_t shiftVal = 0;
bool extraChild = 0;
if( header.from_node != MESH_DEFAULT_ADDRESS){
fwd_by = header.from_node;
uint16_t m = fwd_by;
uint8_t count = 0;
while(m){ //Octal addresses convert nicely to binary in threes. Address 03 = B011 Address 033 = B011011
m >>= 3; //Find out how many digits are in the octal address
count++;
}
shiftVal = count*3; //Now we know how many bits to shift when adding a child node 1-5 (B001 to B101) to any address
}else{
//If request is coming from level 1, add an extra child to the master
extraChild = 1;
}
#ifdef MESH_DEBUG_PRINTF
// printf("%u MSH: Rcv addr req from_id %d \n",millis(),from_id);
#endif
for(int i=MESH_MAX_CHILDREN+extraChild; i> 0; i--){ // For each of the possible addresses (5 max)
bool found = 0;
newAddress = fwd_by | (i << shiftVal);
if(!newAddress ){ /*printf("dumped 0%o\n",newAddress);*/ continue; }
for(uint8_t i=0; i < addrListTop; i++){
#if defined (MESH_DEBUG_MINIMAL)
#if !defined (__linux) && !defined ARDUINO_SAM_DUE || defined TEENSY || defined(__ARDUINO_X86__)
Serial.print("ID: ");Serial.print(addrList[i].nodeID,DEC);Serial.print(" ADDR: ");
uint16_t newAddr = addrList[i].address;
char addr[5] = " ", count=3, mask=7;
while(newAddr){
addr[count] = (newAddr & mask)+48; //get the individual Octal numbers, specified in chunks of 3 bits, convert to ASCII by adding 48
newAddr >>= 3;
count--;
}
Serial.println(addr);
#else
printf("ID: %d ADDR: 0%o\n", addrList[i].nodeID,addrList[i].address);
#endif
#endif
if( (addrList[i].address == newAddress && addrList[i].nodeID != from_id ) || newAddress == MESH_DEFAULT_ADDRESS){
found = 1;
break;
}
}
if(!found){
header.type = NETWORK_ADDR_RESPONSE;
header.to_node = header.from_node;
//This is a routed request to 00
if(header.from_node != MESH_DEFAULT_ADDRESS){ //Is NOT node 01 to 05
delay(2);
if( network.write(header,&newAddress,sizeof(newAddress)) ){
//addrMap[from_id] = newAddress; //????
}else{
network.write(header,&newAddress,sizeof(newAddress));
}
}else{
delay(2);
network.write(header,&newAddress,sizeof(newAddress),header.to_node);
//addrMap[from_id] = newAddress;
}
uint32_t timer=millis();
lastAddress = newAddress;
lastID = from_id;
while(network.update() != MESH_ADDR_CONFIRM){
if(millis()-timer > network.routeTimeout){
return;
}
}
setAddress(from_id,newAddress);
#ifdef MESH_DEBUG_PRINTF
printf("Sent to 0%o phys: 0%o new: 0%o id: %d\n", header.to_node,MESH_DEFAULT_ADDRESS,newAddress,header.reserved);
#endif
break;
}else{
#if defined (MESH_DEBUG_PRINTF)
printf("not allocated\n");
#endif
}
}
//}else{
//break;
//}
}
/*****************************************************/
#endif