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use crate::enocean::*;
use serialport::prelude::*;
use std::time::Duration;
use std::io;
use std::io::Write;
use std::sync::mpsc;
use crate::ParseEspErrorKind;
pub fn start(
port_name: String,
enocean_event: mpsc::Sender<ESP3>,
enocean_command: mpsc::Receiver<ESP3>,
) -> Result<(), std::io::Error>{
// Set settings as mentioned in ESP3
let mut settings: SerialPortSettings = Default::default();
settings.timeout = Duration::from_millis(100);
settings.baud_rate = 57600;
settings.data_bits = serialport::DataBits::Eight;
settings.parity = serialport::Parity::None;
settings.stop_bits = serialport::StopBits::One;
settings.flow_control = serialport::FlowControl::None;
// Open serial port (with a sender and receiver)
// println!("Try to connect to {} : ", port_name);
match serialport::open_with_settings(&port_name, &settings) {
Ok(mut reader) => {
let mut serial_buf: Vec<u8> = vec![0; 100];
let mut incomplete_serial_buf: Option<Vec<u8>> = None;
// println!("Receiving data on {}:", &port_name);
// ENOCEAN COMMAND SEND (if any)
loop {
let packet_to_send = enocean_command.try_recv();
match packet_to_send {
Ok(packet) => {
// println!("sending packet : {:?}", packet);
// Convert ESP3 to u8
let bytes_to_send = Vec::from(&packet);
match reader.write(&bytes_to_send[..]) {
Ok(_) => {
// print!(".");
std::io::stdout().flush().unwrap();
}
Err(ref e) if e.kind() == io::ErrorKind::TimedOut => (),
Err(e) => eprintln!("{:?}", e),
}
}
Err(_) => {}
}
// USB300 MESSAGE RECEIVE (if any)
match reader.read(serial_buf.as_mut_slice()) {
Ok(t) => {
// If we received an incomming telegram :
// println!("Received telegram : {:X?} ", &serial_buf[..t]);
match esp3_of_enocean_message(get_raw_message(serial_buf[..t].to_vec())) {
Ok(esp3_packet) => {
// If we achieved to transform it into an ESP3 packet, send it to the main thread
match enocean_event.send(esp3_packet.clone()) {
Ok(_result) => {}
Err(e) => {
eprintln!(
"Erreur lors de l'envoi du packet : {:?} erreur : {:?}",
esp3_packet, e
);
}
}
}
Err(e) => {
// If message was incomplete, maybe the telegram is just truncated (received in 2 differents parts)
match e.kind {
// If it's the "first part"
ParseEspErrorKind::IncompleteMessage => {
// We save it for next incomming telegram parsing
// println!("Saving : {:x?}", e.packet);
incomplete_serial_buf = Some(e.packet);
}
// If it's the "second part"
ParseEspErrorKind::NoSyncByte => {
match incomplete_serial_buf {
// If we have stored the first part before
Some(mut buffer) => {
buffer.extend(e.packet.iter().cloned());
// println!("REPAIRED telegram : {:X?} ", buffer);
match esp3_of_enocean_message(buffer) {
Ok(esp3_packet) => {
// send it to the main thread
match enocean_event
.send(esp3_packet.clone())
{
Ok(_result) => {}
Err(e) => {
eprintln!(
"Erreur lors de l'envoi du packet : {:?} erreur : {:?}",
esp3_packet, e
);
}
}
}
Err(e) => {
eprintln!(
"Erreur malgré reconstruction {:?}",
e
);
}
}
incomplete_serial_buf = None;
}
None => {}
}
}
_ => {
eprintln!("Autre erreur : {:?}", e);
}
}
}
}
},
Err(ref e) if e.kind() == io::ErrorKind::TimedOut => (),
Err(e) => {
eprintln!("Error while trying to read serial port input buffer : {:?}", e);
return Err(std::io::Error::new(std::io::ErrorKind::Other, e.to_string()))
} ,
}
} // LOOP END
}
Err(e) => {
eprintln!("Failed to open \"{}\". Error: {}", port_name, e);
if let Ok(ports) = serialport::available_ports() {
match ports.len() {
0 => println!("No ports found."),
1 => println!("Available port : "),
n => println!("Available ports ({}):", n),
};
for p in ports {
println!(" {}", p.port_name);
}
} else {
print!("Error listing serial ports");
}
return Err(std::io::Error::new(std::io::ErrorKind::NotConnected, e.to_string()))
}
}
}