1 files changed, 111 insertions, 0 deletions
diff --git a/serial.vala b/serial.vala
new file mode 100644
index 0000000..480d73c
--- /dev/null
+++ b/serial.vala
@@ -0,0 +1,111 @@
+public class Serial {
+	private Posix.termios newtio;
+	private Posix.termios restoretio;
+	public int fd=-1;
+
+	public signal void new_data(uchar[] data);
+
+	public Serial(string device, int rate, int bits, int stopbits) {
+		Posix.speed_t baudrate = Posix.B9600;
+
+		fd = Posix.open(device, Posix.O_RDONLY | Posix.O_NONBLOCK);
+
+		if(fd < 0) {
+			fd = -1;
+			stderr.printf("Could not open device!\n");
+		}
+
+		Posix.tcflush(fd, Posix.TCIOFLUSH);
+
+		Posix.tcgetattr(fd, out restoretio);
+
+		/* apply settings */
+		switch(rate) {
+			case 300:
+				baudrate = Posix.B300;
+				break;
+			case 600:
+				baudrate = Posix.B600;
+				break;
+			case 1200:
+				baudrate = Posix.B1200;
+				break;
+			case 2400:
+				baudrate = Posix.B2400;
+				break;
+			case 4800:
+				baudrate = Posix.B4800;
+				break;
+			case 9600:
+				baudrate = Posix.B9600;
+				break;
+			case 19200:
+				baudrate = Posix.B19200;
+				break;
+			case 38400:
+				baudrate = Posix.B38400;
+				break;
+			case 57600:
+				baudrate = Posix.B57600;
+				break;
+			case 115200:
+				baudrate = Posix.B115200;
+				break;
+			case 230400:
+				baudrate = Posix.B230400;
+				break;
+			default:
+				/* not supported */
+				break;
+		}
+
+		Posix.cfsetospeed(ref newtio, baudrate);
+		Posix.cfsetispeed(ref newtio, baudrate);
+
+		switch(bits) {
+			case 5:
+				newtio.c_cflag = (newtio.c_cflag & ~Posix.CSIZE) | Posix.CS5;
+				break;
+			case 6:
+				newtio.c_cflag = (newtio.c_cflag & ~Posix.CSIZE) | Posix.CS6;
+				break;
+			case 7:
+				newtio.c_cflag = (newtio.c_cflag & ~Posix.CSIZE) | Posix.CS7;
+				break;
+			case 8:
+			default:
+				newtio.c_cflag = (newtio.c_cflag & ~Posix.CSIZE) | Posix.CS8;
+				break;
+		}
+
+		newtio.c_cflag |= Posix.CLOCAL | Posix.CREAD;
+
+		newtio.c_cflag &= ~(Posix.PARENB | Posix.PARODD);
+
+		/* TODO: parity */
+
+		newtio.c_cflag &= ~Linux.Termios.CRTSCTS;
+
+		if(stopbits == 2)
+			newtio.c_cflag |= Posix.CSTOPB;
+		else
+			newtio.c_cflag &= ~Posix.CSTOPB;
+
+		newtio.c_iflag = Posix.IGNBRK;
+
+		newtio.c_lflag = 0;
+		newtio.c_oflag = 0;
+
+		newtio.c_cc[Posix.VTIME]=1;
+		newtio.c_cc[Posix.VMIN]=1;
+
+		newtio.c_lflag &= ~(Posix.ECHONL|Posix.NOFLSH);
+
+		int mcs=0;
+		Posix.ioctl(fd, Linux.Termios.TIOCMGET, out mcs);
+		mcs |= Linux.Termios.TIOCM_RTS;
+		Posix.ioctl(fd, Linux.Termios.TIOCMSET, out mcs);
+
+		Posix.tcsetattr(fd, Posix.TCSANOW, newtio);
+	}
+}