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esp32-nmea2000-obp60
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handle receiving and distributing on NMEA messages

This commit is contained in:
andreas 2021-10-28 10:25:12 +02:00
parent edb8d6e863
commit 1be2b1a667
8 changed files with 111 additions and 63 deletions
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12
lib/nmea2kto0183/N2kDataToNMEA0183.cpp
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@ -31,10 +31,11 @@
N2kDataToNMEA0183::N2kDataToNMEA0183(GwLog * logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183) : tNMEA2000::tMsgHandler(0,NMEA2000){
N2kDataToNMEA0183::N2kDataToNMEA0183(GwLog * logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183, int id)
: tNMEA2000::tMsgHandler(0,NMEA2000){
SendNMEA0183MessageCallback=0;
pNMEA0183=NMEA0183;
sourceId=id;
}
@ -46,10 +47,11 @@ void N2kDataToNMEA0183::loop() {
//*****************************************************************************
void N2kDataToNMEA0183::SendMessage(const tNMEA0183Msg &NMEA0183Msg) {
if ( pNMEA0183 != 0 ) pNMEA0183->SendMessage(NMEA0183Msg);
if ( SendNMEA0183MessageCallback != 0 ) SendNMEA0183MessageCallback(NMEA0183Msg);
if ( SendNMEA0183MessageCallback != 0 ) SendNMEA0183MessageCallback(NMEA0183Msg, sourceId);
}
N2kDataToNMEA0183* N2kDataToNMEA0183::create(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183){
return new N2kToNMEA0183Functions(logger,boatData,NMEA2000,NMEA0183);
N2kDataToNMEA0183* N2kDataToNMEA0183::create(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000,
tNMEA0183 *NMEA0183, int sourceId){
return new N2kToNMEA0183Functions(logger,boatData,NMEA2000,NMEA0183, sourceId);
}
//*****************************************************************************

11
lib/nmea2kto0183/N2kDataToNMEA0183.h
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@ -33,22 +33,19 @@ OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
class N2kDataToNMEA0183 : public tNMEA2000::tMsgHandler
{
public:
using tSendNMEA0183MessageCallback = void (*)(const tNMEA0183Msg &NMEA0183Msg);
using tSendNMEA0183MessageCallback = void (*)(const tNMEA0183Msg &NMEA0183Msg, int id);
protected:
GwLog *logger;
GwBoatData *boatData;
tNMEA0183 *pNMEA0183;
int sourceId;
tSendNMEA0183MessageCallback SendNMEA0183MessageCallback;
void SendMessage(const tNMEA0183Msg &NMEA0183Msg);
N2kDataToNMEA0183(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183);
N2kDataToNMEA0183(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183, int sourceId);
public:
static N2kDataToNMEA0183* create(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183);
static N2kDataToNMEA0183* create(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183, int sourceId);
virtual void HandleMsg(const tN2kMsg &N2kMsg) = 0;
void SetSendNMEA0183MessageCallback(tSendNMEA0183MessageCallback _SendNMEA0183MessageCallback)
{

3
lib/nmea2kto0183/N2kToNMEA0183Functions.h
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@ -849,7 +849,8 @@ private:
}
public:
N2kToNMEA0183Functions(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183) : N2kDataToNMEA0183(logger, boatData, NMEA2000, NMEA0183)
N2kToNMEA0183Functions(GwLog *logger, GwBoatData *boatData, tNMEA2000 *NMEA2000, tNMEA0183 *NMEA0183, int sourceId)
: N2kDataToNMEA0183(logger, boatData, NMEA2000, NMEA0183,sourceId)
{
LastPosSend = 0;
lastLoopTime = 0;

38
lib/serial/GwSerial.cpp
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@ -13,17 +13,24 @@ class SerialWriter : public GwBufferWriter{
};
GwSerial::GwSerial(GwLog *logger, uart_port_t num)
GwSerial::GwSerial(GwLog *logger, uart_port_t num, int id,bool allowRead)
{
this->id=id;
this->logger = logger;
this->num = num;
this->buffer = new GwBuffer(logger,1600);
this->buffer = new GwBuffer(logger,GwBuffer::TX_BUFFER_SIZE);
this->writer = new SerialWriter(num);
this->allowRead=allowRead;
if (allowRead){
this->readBuffer=new GwBuffer(logger, GwBuffer::RX_BUFFER_SIZE);
}
}
GwSerial::~GwSerial()
{
delete buffer;
delete writer;
if (readBuffer) delete readBuffer;
}
int GwSerial::setup(int baud, int rxpin, int txpin)
{
@ -54,13 +61,32 @@ int GwSerial::setup(int baud, int rxpin, int txpin)
bool GwSerial::isInitialized() { return initialized; }
size_t GwSerial::enqueue(const uint8_t *data, size_t len)
{
if (! isInitialized()) return 0;
return buffer->addData(data, len);
}
GwBuffer::WriteStatus GwSerial::write(){
if (! isInitialized()) return GwBuffer::ERROR;
return buffer->fetchData(writer,false);
}
const char *GwSerial::read(){
char buffer[10];
uart_read_bytes(num,(uint8_t *)(&buffer),10,0);
return NULL;
void GwSerial::sendToClients(const char *buf,int sourceId){
if ( sourceId == id) return;
size_t len=strlen(buf);
size_t enqueued=enqueue((const uint8_t*)buf,len);
if (enqueued != len){
LOG_DEBUG(GwLog::DEBUG,"GwSerial overflow on channel %d",id);
overflows++;
}
}
void GwSerial::loop(bool handleRead){
write();
if (! handleRead) return;
char buffer[10];
int rt=uart_read_bytes(num,(uint8_t *)(&buffer),10,0);
if (allowRead & rt > 0){
readBuffer->addData((uint8_t *)(&buffer),rt,true);
}
}
bool GwSerial::readMessages(GwBufferWriter *writer){
if (! allowRead) return false;
return readBuffer->fetchMessage(writer,'\n',true) == GwBuffer::OK;
}

15
lib/serial/GwSerial.h
View File

@ -7,19 +7,24 @@ class SerialWriter;
class GwSerial{
private:
GwBuffer *buffer;
GwBuffer *readBuffer;
GwBuffer *readBuffer=NULL;
GwLog *logger;
SerialWriter *writer;
uart_port_t num;
bool initialized=false;
bool allowRead=true;
GwBuffer::WriteStatus write();
int id=-1;
int overflows=0;
size_t enqueue(const uint8_t *data, size_t len);
public:
static const int bufferSize=200;
GwSerial(GwLog *logger,uart_port_t num);
GwSerial(GwLog *logger,uart_port_t num,int id,bool allowRead=true);
~GwSerial();
int setup(int baud,int rxpin,int txpin);
bool isInitialized();
size_t enqueue(const uint8_t *data, size_t len);
GwBuffer::WriteStatus write();
const char *read();
void sendToClients(const char *buf,int sourceId);
void loop(bool handleRead=true);
bool readMessages(GwBufferWriter *writer);
};
#endif

12
lib/socketserver/GwSocketServer.cpp
View File

@ -175,7 +175,7 @@ void GwSocketServer::begin(){
MDNS.addService("_nmea-0183","_tcp",config->getInt(config->serverPort));
}
void GwSocketServer::loop()
void GwSocketServer::loop(bool handleRead)
{
WiFiClient client = server->available(); // listen for incoming clients
@ -228,7 +228,7 @@ void GwSocketServer::loop()
}
else
{
client->read();
if (handleRead) client->read();
}
}
}
@ -245,12 +245,6 @@ bool GwSocketServer::readMessages(GwBufferWriter *writer){
}
void GwSocketServer::sendToClients(const char *buf,int source){
int len=strlen(buf);
char buffer[len+2];
memcpy(buffer,buf,len);
buffer[len]=0x0d;
len++;
buffer[len]=0x0a;
len++;
int sourceIndex=source-minId;
for (int i = 0; i < maxClients; i++)
{
@ -258,7 +252,7 @@ void GwSocketServer::sendToClients(const char *buf,int source){
gwClientPtr client = clients[i];
if (! client->hasClient()) continue;
if ( client->client->connected() ) {
bool rt=client->enqueue((uint8_t*)buffer,len);
bool rt=client->enqueue((uint8_t*)buf,len);
if (!rt){
LOG_DEBUG(GwLog::DEBUG,"overflow in send to %s",client->remoteIp.c_str());
}

2
lib/socketserver/GwSocketServer.h
View File

@ -22,7 +22,7 @@ class GwSocketServer{
GwSocketServer(const GwConfigHandler *config,GwLog *logger,int minId);
~GwSocketServer();
void begin();
void loop();
void loop(bool handleRead=true);
void sendToClients(const char *buf,int sourceId);
int numClients();
bool readMessages(GwBufferWriter *writer);

83
src/main.cpp
View File

@ -65,7 +65,7 @@ Preferences preferences; // Nonvolatile storage on ESP32 - To store
bool SendNMEA0183Conversion = true; // Do we send NMEA2000 -> NMEA0183 conversion
bool SendSeaSmart = false; // Do we send NMEA2000 messages in SeaSmart format
N2kDataToNMEA0183 *nmea0183Converter=N2kDataToNMEA0183::create(&logger, &boatData,&NMEA2000, 0);
N2kDataToNMEA0183 *nmea0183Converter=N2kDataToNMEA0183::create(&logger, &boatData,&NMEA2000, 0, N2K_CHANNEL_ID);
// Set the information for other bus devices, which messages we support
const unsigned long TransmitMessages[] PROGMEM = {127489L, // Engine dynamic
@ -73,7 +73,7 @@ const unsigned long TransmitMessages[] PROGMEM = {127489L, // Engine dynamic
};
// Forward declarations
void HandleNMEA2000Msg(const tN2kMsg &N2kMsg);
void SendNMEA0183Message(const tNMEA0183Msg &NMEA0183Msg);
void SendNMEA0183Message(const tNMEA0183Msg &NMEA0183Msg,int id);
AsyncWebServer webserver(80);
@ -165,12 +165,12 @@ GwConfigInterface *sendTCP=NULL;
GwConfigInterface *sendSeasmart=NULL;
GwConfigInterface *systemName=NULL;
GwSerial usbSerial(&logger, UART_NUM_0);
GwSerial usbSerial(&logger, UART_NUM_0, USB_CHANNEL_ID);
class GwSerialLog : public GwLogWriter{
public:
virtual ~GwSerialLog(){}
virtual void write(const char *data){
usbSerial.enqueue((const uint8_t*)data,strlen(data)); //ignore any errors
usbSerial.sendToClients(data,-1); //ignore any errors
}
};
@ -385,30 +385,40 @@ void HandleNMEA2000Msg(const tN2kMsg &N2kMsg) {
socketServer.sendToClients(buf,N2K_CHANNEL_ID);
}
//*****************************************************************************
void SendNMEA0183Message(const tNMEA0183Msg &NMEA0183Msg) {
if ( ! sendTCP->asBoolean() && ! sendUsb->asBoolean() ) return;
char buf[MAX_NMEA0183_MESSAGE_SIZE];
if ( !NMEA0183Msg.GetMessage(buf, MAX_NMEA0183_MESSAGE_SIZE) ) return;
void sendBufferToChannels(const char * buffer, int sourceId){
if (sendTCP->asBoolean()){
socketServer.sendToClients(buf,N2K_CHANNEL_ID);
socketServer.sendToClients(buffer,sourceId);
}
if (sendUsb->asBoolean()){
int len=strlen(buf);
if (len >= (MAX_NMEA0183_MESSAGE_SIZE -2)) return;
buf[len]=0x0d;
len++;
buf[len]=0x0a;
len++;
buf[len]=0;
usbSerial.enqueue((const uint8_t*)buf,len);
usbSerial.sendToClients(buffer,sourceId);
}
}
//*****************************************************************************
void SendNMEA0183Message(const tNMEA0183Msg &NMEA0183Msg, int sourceId) {
if ( ! sendTCP->asBoolean() && ! sendUsb->asBoolean() ) return;
char buf[MAX_NMEA0183_MESSAGE_SIZE+3];
if ( !NMEA0183Msg.GetMessage(buf, MAX_NMEA0183_MESSAGE_SIZE) ) return;
size_t len=strlen(buf);
buf[len]=0x0d;
buf[len+1]=0x0a;
buf[len+2]=0;
sendBufferToChannels(buf,sourceId);
}
void handleReceivedNmeaMessage(const char *buf, int sourceId){
//TODO - for now only send out again
//add the conversion to N2K here
sendBufferToChannels(buf,sourceId);
}
void handleSendAndRead(bool handleRead){
socketServer.loop(handleRead);
usbSerial.loop(handleRead);
}
class NMEAMessageReceiver : public GwBufferWriter{
uint8_t buffer[GwBuffer::RX_BUFFER_SIZE+1];
uint8_t buffer[GwBuffer::RX_BUFFER_SIZE+4];
uint8_t *writePointer=buffer;
public:
virtual int write(const uint8_t *buffer,size_t len){
@ -421,23 +431,36 @@ class NMEAMessageReceiver : public GwBufferWriter{
}
virtual void done(){
if (writePointer == buffer) return;
logger.logDebug(GwLog::DEBUG,"NMEA-IN[%d]: %s",id,(const char *)buffer);
uint8_t *p;
for (p=writePointer-1;p>=buffer;p--){
if (*p <= 0x20) *p=0;
for (p=writePointer-1;p>=buffer && *p <= 0x20;p--){
*p=0;
}
if (p > buffer){
p++;
*p=0x0d;
p++;
*p=0x0a;
p++;
*p=0;
}
for (p=buffer; *p != 0 && p < writePointer && *p <= 0x20;p++){}
logger.logDebug(GwLog::DEBUG,"NMEA[%d]: %s",id,(const char *)p);
//very simple NMEA check
if (*p != '!' && *p != '$'){
logger.logDebug(GwLog::DEBUG,"unknown line [%d] - ignore: %s",id,(const char *)p);
}
else{
logger.logDebug(GwLog::DEBUG,"NMEA[%d]: %s",id,(const char *)p);
handleReceivedNmeaMessage((const char *)p,id);
//trigger sending to empty buffers
handleSendAndRead(false);
}
writePointer=buffer;
}
};
void loop() {
gwWifi.loop();
socketServer.loop();
if (usbSerial.write() == GwBuffer::ERROR){
//logger.logDebug(GwLog::DEBUG,"overflow in USB serial");
}
handleSendAndRead(true);
NMEA2000.ParseMessages();
int SourceAddress = NMEA2000.GetN2kSource();
@ -461,6 +484,6 @@ void loop() {
socketServer.readMessages(&receiver);
//read channels
usbSerial.read();
usbSerial.readMessages(&receiver);
}