1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145

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>,
) {
    // 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!("{:?}", e),
                }
            } // 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");
            }

            ::std::process::exit(1);
        }
    }
}