#![allow(non_camel_case_types)]

use libc::{c_int, c_uchar, c_uint};

pub type cc_t = c_uchar;
pub type speed_t = c_uint;
pub type tcflag_t = c_uint;

#[derive(Debug, Copy, Clone, Eq, PartialEq)]
#[repr(C)]
pub struct termios {
    pub c_iflag: tcflag_t,
    pub c_oflag: tcflag_t,
    pub c_cflag: tcflag_t,
    pub c_lflag: tcflag_t,
    pub c_cc: [cc_t; NCCS],
    pub c_ispeed: c_int,
    pub c_ospeed: c_int,
}

pub const NCCS: usize = 20;

// c_cc characters
pub const VEOF: usize = 0;
pub const VEOL: usize = 1;
pub const VEOL2: usize = 2;
pub const VERASE: usize = 3;
pub const VWERASE: usize = 4;
pub const VKILL: usize = 5;
pub const VREPRINT: usize = 6;
pub const VINTR: usize = 8;
pub const VQUIT: usize = 9;
pub const VSUSP: usize = 10;
pub const VSTART: usize = 12;
pub const VSTOP: usize = 13;
pub const VLNEXT: usize = 14;
pub const VDISCARD: usize = 15;
pub const VMIN: usize = 16;
pub const VTIME: usize = 17;
pub const VSTATUS: usize = 18;

// c_iflag bits
pub const IGNBRK: tcflag_t = 0x00000001;
pub const BRKINT: tcflag_t = 0x00000002;
pub const IGNPAR: tcflag_t = 0x00000004;
pub const PARMRK: tcflag_t = 0x00000008;
pub const INPCK: tcflag_t = 0x00000010;
pub const ISTRIP: tcflag_t = 0x00000020;
pub const INLCR: tcflag_t = 0x00000040;
pub const IGNCR: tcflag_t = 0x00000080;
pub const ICRNL: tcflag_t = 0x00000100;
pub const IXON: tcflag_t = 0x00000200;
pub const IXOFF: tcflag_t = 0x00000400;
pub const IXANY: tcflag_t = 0x00000800;
pub const IMAXBEL: tcflag_t = 0x00002000;

// c_oflag bits
pub const OPOST: tcflag_t = 0x00000001;
pub const ONLCR: tcflag_t = 0x00000002;
pub const OXTABS: tcflag_t = 0x00000004;
pub const ONOEOT: tcflag_t = 0x00000008;
pub const OCRNL: tcflag_t = 0x00000010;
pub const ONOCR: tcflag_t = 0x00000020;
pub const ONLRET: tcflag_t = 0x00000040;

// c_cflag bits
pub const CIGNORE: tcflag_t = 0x00000001;
pub const CSIZE: tcflag_t = 0x00000300;
pub const CS5: tcflag_t = 0x00000000;
pub const CS6: tcflag_t = 0x00000100;
pub const CS7: tcflag_t = 0x00000200;
pub const CS8: tcflag_t = 0x00000300;
pub const CSTOPB: tcflag_t = 0x00000400;
pub const CREAD: tcflag_t = 0x00000800;
pub const PARENB: tcflag_t = 0x00001000;
pub const PARODD: tcflag_t = 0x00002000;
pub const HUPCL: tcflag_t = 0x00004000;
pub const CLOCAL: tcflag_t = 0x00008000;
pub const CRTSCTS: tcflag_t = 0x00010000;
pub const CRTS_IFLOW: tcflag_t = CRTSCTS;
pub const CCTS_OFLOW: tcflag_t = CRTSCTS;
pub const CDTRCTS: tcflag_t = 0x00020000;
pub const MDMBUF: tcflag_t = 0x00100000;
pub const CHWFLOW: tcflag_t = MDMBUF | CRTSCTS | CDTRCTS;

// c_lflag bits
pub const ECHOKE: tcflag_t = 0x00000001;
pub const ECHOE: tcflag_t = 0x00000002;
pub const ECHOK: tcflag_t = 0x00000004;
pub const ECHO: tcflag_t = 0x00000008;
pub const ECHONL: tcflag_t = 0x00000010;
pub const ECHOPRT: tcflag_t = 0x00000020;
pub const ECHOCTL: tcflag_t = 0x00000040;
pub const ISIG: tcflag_t = 0x00000080;
pub const ICANON: tcflag_t = 0x00000100;
pub const ALTWERASE: tcflag_t = 0x00000200;
pub const IEXTEN: tcflag_t = 0x00000400;
pub const EXTPROC: tcflag_t = 0x00000800;
pub const TOSTOP: tcflag_t = 0x00400000;
pub const FLUSHO: tcflag_t = 0x00800000;
pub const NOKERNINFO: tcflag_t = 0x02000000;
pub const PENDIN: tcflag_t = 0x20000000;
pub const NOFLSH: tcflag_t = 0x80000000;

// baud rates
pub const B0: speed_t = 0;
pub const B50: speed_t = 50;
pub const B75: speed_t = 75;
pub const B110: speed_t = 110;
pub const B134: speed_t = 134;
pub const B150: speed_t = 150;
pub const B200: speed_t = 200;
pub const B300: speed_t = 300;
pub const B600: speed_t = 600;
pub const B1200: speed_t = 1200;
pub const B1800: speed_t = 1800;
pub const B2400: speed_t = 2400;
pub const B4800: speed_t = 4800;
pub const B9600: speed_t = 9600;
pub const B19200: speed_t = 19200;
pub const B38400: speed_t = 38400;
pub const B7200: speed_t = 7200;
pub const B14400: speed_t = 14400;
pub const B28800: speed_t = 28800;
pub const B57600: speed_t = 57600;
pub const B76800: speed_t = 76800;
pub const B115200: speed_t = 115200;
pub const B230400: speed_t = 230400;
pub const B460800: speed_t = 460800;
pub const B921600: speed_t = 921600;
pub const EXTA: speed_t = 19200;
pub const EXTB: speed_t = 38400;

// tcflow()
pub const TCOOFF: c_int = 1;
pub const TCOON: c_int = 2;
pub const TCIOFF: c_int = 3;
pub const TCION: c_int = 4;

// tcflush()
pub const TCIFLUSH: c_int = 1;
pub const TCOFLUSH: c_int = 2;
pub const TCIOFLUSH: c_int = 3;

// tcsetattr()
pub const TCSANOW: c_int = 0;
pub const TCSADRAIN: c_int = 1;
pub const TCSAFLUSH: c_int = 2;
pub const TCSASOFT: c_int = 0x10;
