/*	$NetBSD: termios.h,v 1.36 2018/12/07 19:01:11 jakllsch Exp $	*/

/*
 * Copyright (c) 1988, 1989, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)termios.h	8.3 (Berkeley) 3/28/94
 */

#ifndef _SYS_TERMIOS_H_
#define _SYS_TERMIOS_H_

#include <sys/ttydefaults.h>
#include <sys/ttycom.h>

/*
 * Special Control Characters
 *
 * Index into c_cc[] character array.
 *
 *	Name	     Subscript	Enabled by
 */
#define VEOF 0      /* ICANON */
#define VEOL 1      /* ICANON */
#define VEOL2 2     /* ICANON */
#define VERASE 3    /* ICANON */
#define VWERASE 4   /* ICANON */
#define VKILL 5     /* ICANON */
#define VREPRINT 6  /* ICANON */
#define VINTR 8     /* ISIG */
#define VQUIT 9     /* ISIG */
#define VSUSP 10    /* ISIG */
#define VDSUSP 11   /* ISIG */
#define VSTART 12   /* IXON, IXOFF */
#define VSTOP 13    /* IXON, IXOFF */
#define VLNEXT 14   /* IEXTEN */
#define VDISCARD 15 /* IEXTEN */
#define VMIN 16     /* !ICANON */
#define VTIME 17    /* !ICANON */
#define VSTATUS 18  /* ICANON */
#define NCCS 20

#define _POSIX_VDISABLE 0xff

#define CCEQ(val, c) (c == val ? val != _POSIX_VDISABLE : 0)

/*
 * Input flags - software input processing
 */
#define IGNBRK 0x00000001U  /* ignore BREAK condition */
#define BRKINT 0x00000002U  /* map BREAK to SIGINT */
#define IGNPAR 0x00000004U  /* ignore (discard) parity errors */
#define PARMRK 0x00000008U  /* mark parity and framing errors */
#define INPCK 0x00000010U   /* enable checking of parity errors */
#define ISTRIP 0x00000020U  /* strip 8th bit off chars */
#define INLCR 0x00000040U   /* map NL into CR */
#define IGNCR 0x00000080U   /* ignore CR */
#define ICRNL 0x00000100U   /* map CR to NL (ala CRMOD) */
#define IXON 0x00000200U    /* enable output flow control */
#define IXOFF 0x00000400U   /* enable input flow control */
#define IXANY 0x00000800U   /* any char will restart after stop */
#define IMAXBEL 0x00002000U /* ring bell on input queue full */

/*
 * Output flags - software output processing
 */
#define OPOST 0x00000001U  /* enable following output processing */
#define ONLCR 0x00000002U  /* map NL to CR-NL (ala CRMOD) */
#define OXTABS 0x00000004U /* expand tabs to spaces */
#define OCRNL 0x00000010U  /* map CR to NL */
#define ONOCR 0x00000020U  /* discard CR's when on column 0 */
#define ONLRET 0x00000040U /* move to column 0 on CR */

/*
 * Control flags - hardware control of terminal
 */
#define CIGNORE 0x00000001U /* ignore control flags */
#define CSIZE 0x00000300U   /* character size mask */
#define CS5 0x00000000U     /* 5 bits (pseudo) */
#define CS6 0x00000100U     /* 6 bits */
#define CS7 0x00000200U     /* 7 bits */
#define CS8 0x00000300U     /* 8 bits */
#define CSTOPB 0x00000400U  /* send 2 stop bits */
#define CREAD 0x00000800U   /* enable receiver */
#define PARENB 0x00001000U  /* parity enable */
#define PARODD 0x00002000U  /* odd parity, else even */
#define HUPCL 0x00004000U   /* hang up on last close */
#define CLOCAL 0x00008000U  /* ignore modem status lines */
#define CRTSCTS 0x00010000U /* RTS/CTS full-duplex flow control */
#define CDTRCTS 0x00020000U /* DTR/CTS full-duplex flow control */
#define MDMBUF 0x00100000U  /* DTR/DCD hardware flow control */

/*
 * "Local" flags - dumping ground for other state
 *
 * Warning: some flags in this structure begin with
 * the letter "I" and look like they belong in the
 * input flag.
 */

#define ECHOKE 0x00000001U     /* visual erase for line kill */
#define ECHOE 0x00000002U      /* visually erase chars */
#define ECHOK 0x00000004U      /* echo NL after line kill */
#define ECHO 0x00000008U       /* enable echoing */
#define ECHONL 0x00000010U     /* echo NL even if ECHO is off */
#define ECHOPRT 0x00000020U    /* visual erase mode for hardcopy */
#define ECHOCTL 0x00000040U    /* echo control chars as ^(Char) */
#define ISIG 0x00000080U       /* enable signals INT, QUIT, [D]SUSP */
#define ICANON 0x00000100U     /* canonicalize input lines */
#define ALTWERASE 0x00000200U  /* use alternate WERASE algorithm */
#define IEXTEN 0x00000400U     /* enable DISCARD and LNEXT */
#define EXTPROC 0x00000800U    /* external processing */
#define TOSTOP 0x00400000U     /* stop background jobs on output */
#define FLUSHO 0x00800000U     /* output being flushed (state) */
#define NOKERNINFO 0x02000000U /* no kernel output from VSTATUS */
#define PENDIN 0x20000000U     /* re-echo input buffer at next read */
#define NOFLSH 0x80000000U     /* don't flush output on signal */

typedef unsigned int tcflag_t;
typedef unsigned char cc_t;
typedef unsigned int speed_t;

struct termios {
  tcflag_t c_iflag; /* input flags */
  tcflag_t c_oflag; /* output flags */
  tcflag_t c_cflag; /* control flags */
  tcflag_t c_lflag; /* local flags */
  cc_t c_cc[NCCS];  /* control chars */
  int c_ispeed;     /* input speed */
  int c_ospeed;     /* output speed */
};

/*
 * Commands passed to tcsetattr() for setting the termios structure.
 */
#define TCSANOW 0     /* make change immediate */
#define TCSADRAIN 1   /* drain output, then change */
#define TCSAFLUSH 2   /* drain output, flush input */
#define TCSASOFT 0x10 /* flag - don't alter h.w. state */

/*
 * Standard speeds
 */
#define B0 0U
#define B50 50U
#define B75 75U
#define B110 110U
#define B134 134U
#define B150 150U
#define B200 200U
#define B300 300U
#define B600 600U
#define B1200 1200U
#define B1800 1800U
#define B2400 2400U
#define B4800 4800U
#define B9600 9600U
#define B19200 19200U
#define B38400 38400U

#ifndef _KERNEL

#define TCIFLUSH 1
#define TCOFLUSH 2
#define TCIOFLUSH 3
#define TCOOFF 1
#define TCOON 2
#define TCIOFF 3
#define TCION 4

#include <sys/cdefs.h>

__BEGIN_DECLS
speed_t cfgetispeed(const struct termios *);
speed_t cfgetospeed(const struct termios *);
int cfsetispeed(struct termios *, speed_t);
int cfsetospeed(struct termios *, speed_t);
int tcgetattr(int, struct termios *);
int tcsetattr(int, int, const struct termios *);

void cfmakeraw(struct termios *);
__END_DECLS

#endif /* !_KERNEL */

#include <sys/ttycom.h>

#endif /* !_SYS_TERMIOS_H_ */
