int main(int argc, char **argv){
initialiseLoRa();
printLoRaSettings();
ShowPacketCounts(0);
ShowPacketCounts(1);
constantReceiving();
}
int receiveMessage(int Channel, unsigned char *message)
{
int i, Bytes, currentAddr, x;
unsigned char data[257];
double FreqError;
Bytes = 0;
x = readRegister(Channel, REG_IRQ_FLAGS);
// LogMessage("Message status = %02Xh\n", x);
// clear the rxDone flag
writeRegister(Channel, REG_IRQ_FLAGS, 0x40);
// check for payload crc issues (0x20 is the bit we are looking for
if((x & 0x20) == 0x20)
{
LogMessage("CRC Failure, RSSI %d\n", readRegister(Channel, REG_PACKET_RSSI) - 157);
// reset the crc flags
writeRegister(Channel, REG_IRQ_FLAGS, 0x20);
ChannelPrintf(Channel, 4, 1, "CRC Failure %02Xh!!\n", x);
Config.LoRaDevices[Channel].BadCRCCount++;
ShowPacketCounts(Channel);
}
else
{
currentAddr = readRegister(Channel, REG_FIFO_RX_CURRENT_ADDR);
// LogMessage("currentAddr = %d\n", currentAddr);
Bytes = readRegister(Channel, REG_RX_NB_BYTES);
// LogMessage("%d bytes in packet\n", Bytes);
// LogMessage("RSSI = %d\n", readRegister(Channel, REG_PACKET_RSSI) - 137);
ChannelPrintf(Channel, 10, 1, "Packet SNR = %d, RSSI = %d ", (char)(readRegister(Channel, REG_PACKET_SNR)) / 4, readRegister(Channel, REG_PACKET_RSSI) - 157);
FreqError = FrequencyError(Channel) / 1000;
ChannelPrintf(Channel, 11, 1, "Freq. Error = %5.1lfkHz ", FreqError);
writeRegister(Channel, REG_FIFO_ADDR_PTR, currentAddr);
data[0] = REG_FIFO;
wiringPiSPIDataRW(Channel, data, Bytes+1);
for (i=0; i<=Bytes; i++)
{
message[i] = data[i+1];
}
message[Bytes] = '\0';
if(Config.LoRaDevices[Channel].AFC && (fabs(FreqError)>0.5))
{
ReTune(Channel, FreqError/1000);
}
}
// Clear all flags
writeRegister(Channel, REG_IRQ_FLAGS, 0xFF);
return Bytes;
}
int main(int argc, char **argv)
{
unsigned char Message[257];
int Bytes, ch;
uint32_t LoopCount[2];
pthread_t SSDVThread, FTPThread, NetworkThread, HabitatThread, ServerThread;
WINDOW * mainwin;
int LEDCounts[2];
if (prog_count("gateway") > 1)
{
printf("\nThe gateway program is already running!\n\n");
exit(1);
}
mainwin = InitDisplay();
// Settings for character input
noecho();
cbreak();
nodelay(stdscr, TRUE);
keypad(stdscr, TRUE);
Config.LoRaDevices[0].InUse = 0;
Config.LoRaDevices[1].InUse = 0;
LEDCounts[0] = 0;
LEDCounts[1] = 0;
// Remove any old SSDV files
// system("rm -f /tmp/*.bin");
// Default pin allocations
Config.LoRaDevices[0].DIO0 = 6;
Config.LoRaDevices[0].DIO5 = 5;
Config.LoRaDevices[1].DIO0 = 27;
Config.LoRaDevices[1].DIO5 = 26;
LoadConfigFile();
LoadPayloadFiles();
if (wiringPiSetup() < 0)
{
fprintf(stderr, "Failed to open wiringPi\n");
exit(1);
}
if (Config.LoRaDevices[0].ActivityLED >= 0) pinMode(Config.LoRaDevices[0].ActivityLED, OUTPUT);
if (Config.LoRaDevices[1].ActivityLED >= 0) pinMode(Config.LoRaDevices[1].ActivityLED, OUTPUT);
if (Config.InternetLED >= 0) pinMode(Config.InternetLED, OUTPUT);
if (Config.NetworkLED >= 0) pinMode(Config.NetworkLED, OUTPUT);
setupRFM98(0);
setupRFM98(1);
ShowPacketCounts(0);
ShowPacketCounts(1);
LoopCount[0] = 0;
LoopCount[1] = 0;
if (pthread_create(&SSDVThread, NULL, SSDVLoop, NULL))
{
fprintf(stderr, "Error creating SSDV thread\n");
return 1;
}
if (pthread_create(&FTPThread, NULL, FTPLoop, NULL))
{
fprintf(stderr, "Error creating FTP thread\n");
return 1;
}
if (pthread_create(&HabitatThread, NULL, HabitatLoop, NULL))
{
fprintf(stderr, "Error creating Habitat thread\n");
return 1;
}
if (Config.ServerPort > 0)
{
if (pthread_create(&ServerThread, NULL, ServerLoop, NULL))
{
fprintf(stderr, "Error creating server thread\n");
return 1;
}
}
if ((Config.NetworkLED >= 0) && (Config.InternetLED >= 0))
{
if (pthread_create(&NetworkThread, NULL, NetworkLoop, NULL))
{
fprintf(stderr, "Error creating Network thread\n");
return 1;
}
}
while (run)
{
int Channel;
for (Channel=0; Channel<=1; Channel++)
{
if (Config.LoRaDevices[Channel].InUse)
{
if (digitalRead(Config.LoRaDevices[Channel].DIO0))
{
Bytes = receiveMessage(Channel, Message+1);
if (Bytes > 0)
{
if (Config.LoRaDevices[Channel].ActivityLED >= 0)
{
digitalWrite(Config.LoRaDevices[Channel].ActivityLED, 1);
LEDCounts[Channel] = 5;
}
// LogMessage("Channel %d data available - %d bytes\n", Channel, Bytes);
// LogMessage("Line = '%s'\n", Message);
if (Message[1] == '!')
{
ProcessUploadMessage(Channel, (char *) Message+1);
}
else if (Message[1] == '^')
{
ProcessCallingMessage(Channel, (char *) Message+1);
}
else if (Message[1] == '$')
{
ProcessTelemetryMessage(Channel, (char *) Message+1);
}
else if (Message[1] == 0x66)
{
ProcessSSDVMessage(Channel, Message);
}
else
{
LogMessage("Unknown packet type is %02Xh, RSSI %d\n", Message[1], readRegister(Channel, REG_PACKET_RSSI) - 157);
ChannelPrintf(Channel, 4, 1, "Unknown Packet %d, %d bytes", Message[0], Bytes);
Config.LoRaDevices[Channel].UnknownCount++;
}
Config.LoRaDevices[Channel].LastPacketAt = time(NULL);
if (Config.LoRaDevices[Channel].InCallingMode && (Config.CallingTimeout > 0))
{
Config.LoRaDevices[Channel].ReturnToCallingModeAt = time(NULL) + Config.CallingTimeout;
}
ShowPacketCounts(Channel);
}
}
if (++LoopCount[Channel] > 1000000)
{
LoopCount[Channel] = 0;
ShowPacketCounts(Channel);
ChannelPrintf(Channel, 12, 1, "Current RSSI = %4d ", readRegister(Channel, REG_CURRENT_RSSI) - 157);
if (Config.LoRaDevices[Channel].LastPacketAt > 0)
{
ChannelPrintf(Channel, 6, 1, "%us since last packet ", (unsigned int)(time(NULL) - Config.LoRaDevices[Channel].LastPacketAt));
}
if (Config.LoRaDevices[Channel].InCallingMode && (Config.CallingTimeout > 0) && (Config.LoRaDevices[Channel].ReturnToCallingModeAt > 0) && (time(NULL) > Config.LoRaDevices[Channel].ReturnToCallingModeAt))
{
Config.LoRaDevices[Channel].InCallingMode = 0;
Config.LoRaDevices[Channel].ReturnToCallingModeAt = 0;
LogMessage("Return to calling mode\n");
// setMode(Channel, RF96_MODE_SLEEP);
// setFrequency(Channel, Frequency);
// SetLoRaParameters(Channel, ImplicitOrExplicit, ErrorCoding, Bandwidth, SpreadingFactor, LowDataRateOptimize);
// setMode(Channel, RF96_MODE_RX_CONTINUOUS);
setLoRaMode(Channel);
SetDefaultLoRaParameters(Channel);
setMode(Channel, RF96_MODE_RX_CONTINUOUS);
ChannelPrintf(Channel, 1, 1, "Channel %d %sMHz %s mode", Channel, Config.LoRaDevices[Channel].Frequency, Modes[Config.LoRaDevices[Channel].SpeedMode]);
}
if ((ch = getch()) != ERR)
{
ProcessKeyPress(ch);
}
if (LEDCounts[Channel] && (Config.LoRaDevices[Channel].ActivityLED >= 0))
{
if (--LEDCounts[Channel] == 0)
{
digitalWrite(Config.LoRaDevices[Channel].ActivityLED, 0);
}
}
}
}
}
// delay(5);
}
CloseDisplay(mainwin);
if (Config.NetworkLED >= 0) digitalWrite(Config.NetworkLED, 0);
if (Config.InternetLED >= 0) digitalWrite(Config.InternetLED, 0);
if (Config.LoRaDevices[0].ActivityLED >= 0) digitalWrite(Config.LoRaDevices[0].ActivityLED, 0);
if (Config.LoRaDevices[1].ActivityLED >= 0) digitalWrite(Config.LoRaDevices[1].ActivityLED, 0);
return 0;
}
