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/*	$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/ansi.h>
#include <sys/featuretest.h>

/*
 * Special Control Characters
 *
 * Index into c_cc[] character array.
 *
 *	Name	     Subscript	Enabled by
 */
#define	VEOF		0	/* ICANON */
#define	VEOL		1	/* ICANON */
#if defined(_NETBSD_SOURCE)
#define	VEOL2		2	/* ICANON */
#endif
#define	VERASE		3	/* ICANON */
#if defined(_NETBSD_SOURCE)
#define VWERASE 	4	/* ICANON */
#endif
#define VKILL		5	/* ICANON */
#if defined(_NETBSD_SOURCE)
#define	VREPRINT 	6	/* ICANON */
#endif
/*			7	   spare 1 */
#define VINTR		8	/* ISIG */
#define VQUIT		9	/* ISIG */
#define VSUSP		10	/* ISIG */
#if defined(_NETBSD_SOURCE)
#define VDSUSP		11	/* ISIG */
#endif
#define VSTART		12	/* IXON, IXOFF */
#define VSTOP		13	/* IXON, IXOFF */
#if defined(_NETBSD_SOURCE)
#define	VLNEXT		14	/* IEXTEN */
#define	VDISCARD	15	/* IEXTEN */
#endif
#define VMIN		16	/* !ICANON */
#define VTIME		17	/* !ICANON */
#if defined(_NETBSD_SOURCE)
#define VSTATUS		18	/* ICANON */
/*			19	   spare 2 */
#endif
#define	NCCS		20

#define _POSIX_VDISABLE	__CAST(unsigned char, '\377')

#if defined(_NETBSD_SOURCE)
#define CCEQ(val, c)	(c == val ? val != _POSIX_VDISABLE : 0)
#endif

/*
 * 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 */
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#define	IXANY		0x00000800U	/* any char will restart after stop */
#endif
#if defined(_NETBSD_SOURCE)
#define IMAXBEL		0x00002000U	/* ring bell on input queue full */
#endif

/*
 * Output flags - software output processing
 */
#define	OPOST		0x00000001U	/* enable following output processing */
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#define ONLCR		0x00000002U	/* map NL to CR-NL (ala CRMOD) */
#endif
#if defined(_NETBSD_SOURCE)
#define OXTABS		0x00000004U	/* expand tabs to spaces */
#define ONOEOT		0x00000008U	/* discard EOT's (^D) on output */
#endif
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#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 */
#endif  /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */

/*
 * Control flags - hardware control of terminal
 */
#if defined(_NETBSD_SOURCE)
#define	CIGNORE		0x00000001U	/* ignore control flags */
#endif
#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 */
#if defined(_NETBSD_SOURCE)
#define	CRTSCTS		0x00010000U	/* RTS/CTS full-duplex flow control */
#define	CRTS_IFLOW	CRTSCTS		/* XXX compat */
#define	CCTS_OFLOW	CRTSCTS		/* XXX compat */
#define	CDTRCTS		0x00020000U	/* DTR/CTS full-duplex flow control */
#define	MDMBUF		0x00100000U	/* DTR/DCD hardware flow control */
#define	CHWFLOW		(MDMBUF|CRTSCTS|CDTRCTS) /* all types of hw flow control */
#endif


/*
 * "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.
 */

#if defined(_NETBSD_SOURCE)
#define	ECHOKE		0x00000001U	/* visual erase for line kill */
#endif
#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 */
#if defined(_NETBSD_SOURCE)
#define	ECHOPRT		0x00000020U	/* visual erase mode for hardcopy */
#define ECHOCTL  	0x00000040U	/* echo control chars as ^(Char) */
#endif  /* defined(_NETBSD_SOURCE) */
#define	ISIG		0x00000080U	/* enable signals INT, QUIT, [D]SUSP */
#define	ICANON		0x00000100U	/* canonicalize input lines */
#if defined(_NETBSD_SOURCE)
#define ALTWERASE	0x00000200U	/* use alternate WERASE algorithm */
#endif /* defined(_NETBSD_SOURCE) */
#define	IEXTEN		0x00000400U	/* enable DISCARD and LNEXT */
#if defined(_NETBSD_SOURCE)
#define EXTPROC         0x00000800U	/* external processing */
#endif /* defined(_NETBSD_SOURCE) */
#define TOSTOP		0x00400000U	/* stop background jobs on output */
#if defined(_NETBSD_SOURCE)
#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 */
#endif /* defined(_NETBSD_SOURCE) */
#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 */
#if defined(_NETBSD_SOURCE)
#define TCSASOFT	0x10		/* flag - don't alter h.w. state */
#endif

/*
 * 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
#if defined(_NETBSD_SOURCE)
#define B7200		7200U
#define B14400		14400U
#define B28800		28800U
#define B57600		57600U
#define B76800		76800U
#define B115200 	115200U
#define B230400 	230400U
#define B460800 	460800U
#define B500000 	500000U
#define B921600 	921600U
#define B1000000	1000000U
#define B1500000	1500000U
#define B2000000	2000000U
#define B2500000	2500000U
#define B3000000	3000000U
#define B3500000	3500000U
#define B4000000	4000000U
#define EXTA		19200U
#define EXTB		38400U
#endif  /* defined(_NETBSD_SOURCE) */

#ifndef _KERNEL

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

#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#ifndef	pid_t
typedef	__pid_t		pid_t;
#define	pid_t		__pid_t
#endif
#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */
#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 *);
int	tcdrain(int);
int	tcflow(int, int);
int	tcflush(int, int);
int	tcsendbreak(int, int);
#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
pid_t	tcgetsid(int);
#endif /* defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) */


#if defined(_NETBSD_SOURCE)
void	cfmakeraw(struct termios *);
int	cfsetspeed(struct termios *, speed_t);
#endif /* defined(_NETBSD_SOURCE) */
__END_DECLS

#endif /* !_KERNEL */

/*
 * Include tty ioctl's that aren't just for backwards compatibility
 * with the old tty driver.  These ioctl definitions were previously
 * in <sys/ioctl.h>.   Most of this appears only when _NETBSD_SOURCE
 * is defined, but (at least) struct winsize has been made standard,
 * and needs to be visible here (as well as via the old <sys/ioctl.h>.)
 */
#include <sys/ttycom.h>

int	tcgetwinsize(int, struct winsize *);
int	tcsetwinsize(int, const struct winsize *);

/*
 * END OF PROTECTED INCLUDE.
 */
#endif /* !_SYS_TERMIOS_H_ */

#if defined(_NETBSD_SOURCE)
#include <sys/ttydefaults.h>
#endif