/************************************************************************
 * This program is Copyright (C) 1986 by Jonathan Payne.  JOVE is	*
 * provided to you without charge, and with no warranty.  You may give	*
 * away copies of JOVE, including sources, provided that this notice is *
 * included in all the files.						*
 ************************************************************************/
/*+++*
 *  title:	tty.h
 *  abstract:	system dependent tty definitions for JOVE
 *  author:	T.R.Hageman, Groningen, The Netherlands.
 *  created:	july 1990
 *  description:
 *---*/

#ifndef _TTY_H_
#define _TTY_H_

#ifndef TUNED
#   include "tune.h"
#endif

#ifdef Extern
RCS_H(tty, "$Id: tty.h,v 14.31.0.9 1994/01/31 17:30:37 tom Exp tom $")
#endif

#ifndef Extern	/* tty.c sets this to "public" to define the variables */
#   define Extern	extern
#endif

#if unix

#ifdef TERMIOS
#   define _I_TERMIOS	1
#endif

#if _I_TERMIOS
#   include <termios.h>
#   define SGTTYB	struct termios
#   define TERMIOS
#   ifndef OCRNL
#	define OCRNL	ONLCR
#	ifndef ONLCR
#	    define ONLCR	OPOST
#	endif
#   endif
#   if !__POSIX__		/* some hosts (sun) already support termios,
				   but not yet the Posix access routines. */
#     if NeXT && NX_CURRENT_COMPILER_RELEASE <= NX_COMPILER_RELEASE_3_1
	/* NS 3.1 already has Posix headers, but not the library routines.
	   (a Bad Move, IMHO).  But we can emulate it with ioctl(). */
#	undef TCSANOW
#	undef TCSADRAIN
#     endif
#     ifndef TCSANOW
#	ifdef TCGETS
#	    define tcgetattr(fd, t)	ioctl(fd, TCGETS, (t))
#	    define tcsetattr		ioctl
#	    define TCSANOW		TCSETS
#	    define TCSADRAIN		TCSETSW
#	else
#	  ifdef TIOCGETA
#	    define tcgetattr(fd, t)	ioctl(fd, TIOCGETA, (t))
#	    define tcsetattr		ioctl
#	    define TCSANOW		TIOCSETA
#	    define TCSADRAIN		TIOCSETAW
#	  else
	    #error "TERMIOS not supported on this system"
#	  endif
#	endif
#	ifdef CBAUD
#	    define cfgetospeed(t)	((t)->c_cflag & CBAUD)
#	    define cfsetospeed(t,s)	((t)->c_cflag = \
					 ((t)->c_cflag & ~CBAUD)|((s) & CBAUD))
#	else
#	    define cfgetospeed(t)	((t)->c_ospeed)
#	    define cfsetospeed(t,s)	((t)->c_ospeed = (s))
#	endif
#     endif
#   endif /* !__POSIX__ */
#else
# if _I_TERMIO
#   include <termio.h>
#   define SGTTYB	struct termio
#   define TERMIOS	/* we emulate TERMIOS */
#   define tcgetattr(fd, t)	ioctl(fd, TCGETA, (t))
#   define tcsetattr		ioctl
#   define TCSANOW		TCSETA
#   define TCSADRAIN		TCSETAW
#   define cfgetospeed(t)	((t)->c_cflag & CBAUD)
#   ifndef OXTABS
#	define OXTABS	TAB3
#   endif
# else
#   include <sgtty.h>
#   ifndef TIOCNRD
	/* Some systems (i.e., NS 3.1) use these to handle struct termios,
	   not the extended 7th ed. struct sgtty I intended...
	   (TIOCNRD seems sufficiently unique to 7th ed to use as safeguard) */
#	undef TIOCGETA
#	undef TIOCSETA
#   endif
#   ifdef INWAIT
#	ifdef DC3DC1
#	    ifdef STALL
#		ifdef PAGE
#		    define BRLUNIX	/* What weird UNIX dialect is this? */
#		endif
#	    endif
#	endif
#   endif
#   ifdef BRLUNIX
#	define SGTTYB	struct sg_brl
#   else
#	define SGTTYB	struct sgttyb
#   endif
# endif
#endif

#ifdef TERMIOS
#   ifdef HAVE_BSDTTY_H
#	include <bsdtty.h>
	/* HP-UX cannot disable DSUSP via termios interface.  BRAINDAMAGE!!! */
#   else
#	undef TIOCSLTC
#	undef TIOCGLTC
#   endif
#endif

Extern SGTTYB	sg[2];

#ifdef TIOCSLTC
Extern struct ltchars	ls[2];
#endif

#ifndef TERMIOS
#ifdef TIOCGETC
Extern struct tchars	tc[2];
#endif

#ifdef TIOCLGET
Extern int	lm[2];		/* local mode; new BSD tty driver */
#endif
#endif /* TERMIOS */

extern short ospeed;

#ifdef TIOCGWINSZ
#   ifdef INTERACTIVE
#	include <sys/sioctl.h>
#   else
#	ifdef SCO_SYSV
#	    include <sys/stream.h>
#	    include <sys/ptem.h>	/* SCO unix at least */
#	endif
#   endif
#else
#   ifdef BTL_BLIT	/* define BSD names in terms of JWIN (whatever) */
#	include <jioctl.h>
#	define TIOCGWINSZ	JWINSIZE
#	define TIOCSWINSZ	JSWINSIZE
#	define winsize		jwinsize
#	define ws_col		bytesx
#	define ws_row		bytesy
#   endif /* BTL_BLIT */
#endif /* TIOCGWINSZ */

#ifdef SYSV
#   ifndef NO_TRIV_PROTO
extern void	setblock __(( int _(fd), int _(on) ));
#   endif
#endif
#endif /* unix */

extern int	CharsPerSec;	/* terminal output speed */

#ifndef CSPEED		/* default console speed in chars per sec. */
#   define CSPEED	1920
#endif

#endif /* _TTY_H_ */

#undef Extern

/*======================================================================
 * $Log: tty.h,v $
 * Revision 14.31.0.9  1994/01/31  17:30:37  tom
 * reorganize TERMIOS/ltchars handling to accommodate HP-UX braindamage.
 *
 * Revision 14.31.0.5  1993/09/02  05:01:38  tom
 * avoid NS 3.1 Posix (non)support.
 *
 * Revision 14.31  1993/02/15  03:04:41  tom
 * replace TINY with NO_TRIV_PROTO for clarity of intent.
 *
 * Revision 14.29  1992/12/30  10:43:34  tom
 * add cfsetospeed() emulation.
 *
 * Revision 14.28  1992/10/27  23:31:10  tom
 * convert to "port{ansi,defs}.h" conventions; move some system-dependencies
 * from jove.h to here.
 *
 * Revision 14.26  1992/08/26  23:56:49  tom
 * add RCS directives.
 *
 */