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      1 /*	$NetBSD: ntp_tty.h,v 1.6 2024/08/18 20:46:50 christos Exp $	*/
      2 
      3 /*
      4  * ntp_tty.h - header file for serial lines handling
      5  */
      6 #ifndef NTP_TTY_H
      7 #define NTP_TTY_H
      8 
      9 /*
     10  * use only one tty model - no use in initialising
     11  * a tty in three ways
     12  * HAVE_TERMIOS is preferred over HAVE_SYSV_TTYS over HAVE_BSD_TTYS
     13  */
     14 
     15 #if defined(HAVE_TERMIOS_H) || defined(HAVE_SYS_TERMIOS_H)
     16 # define HAVE_TERMIOS
     17 #elif defined(HAVE_TERMIO_H)
     18 # define HAVE_SYSV_TTYS
     19 #elif defined(HAVE_SGTTY_H)
     20 # define HAVE_BSD_TTYS
     21 #endif
     22 
     23 #if !defined(VMS) && !defined(SYS_VXWORKS)
     24 # if	!defined(HAVE_SYSV_TTYS) \
     25 	&& !defined(HAVE_BSD_TTYS) \
     26 	&& !defined(HAVE_TERMIOS)
     27 #include "ERROR: no tty type defined!"
     28 # endif
     29 #endif /* !VMS && !SYS_VXWORKS*/
     30 
     31 #if defined(HAVE_BSD_TTYS)
     32 #include <sgtty.h>
     33 #define TTY	struct sgttyb
     34 #endif /* HAVE_BSD_TTYS */
     35 
     36 #if defined(HAVE_SYSV_TTYS)
     37 #include <termio.h>
     38 #define TTY	struct termio
     39 #ifndef tcsetattr
     40 #define tcsetattr(fd, cmd, arg) ioctl(fd, cmd, arg)
     41 #endif
     42 #ifndef TCSANOW
     43 #define TCSANOW	TCSETA
     44 #endif
     45 #ifndef TCIFLUSH
     46 #define TCIFLUSH 0
     47 #endif
     48 #ifndef TCOFLUSH
     49 #define TCOFLUSH 1
     50 #endif
     51 #ifndef TCIOFLUSH
     52 #define TCIOFLUSH 2
     53 #endif
     54 #ifndef tcflush
     55 #define tcflush(fd, arg) ioctl(fd, TCFLSH, arg)
     56 #endif
     57 #endif /* HAVE_SYSV_TTYS */
     58 
     59 #if defined(HAVE_TERMIOS)
     60 # if defined(HAVE_TERMIOS_H)
     61 #  ifdef TERMIOS_NEEDS__SVID3
     62 #   define _SVID3
     63 #  endif
     64 #  include <termios.h>
     65 #  ifdef TERMIOS_NEEDS__SVID3
     66 #   undef _SVID3
     67 #  endif
     68 # elif defined(HAVE_SYS_TERMIOS_H)
     69 #  include <sys/termios.h>
     70 # endif
     71 # define TTY	struct termios
     72 #endif
     73 
     74 #if defined(HAVE_SYS_MODEM_H)
     75 #include <sys/modem.h>
     76 #endif
     77 
     78 /*
     79  * Line discipline flags.  The depredated ones required line discipline
     80  * or streams modules to be installed/loaded in the kernel and are now
     81  * ignored.  Leave the LDISC_CLK and other deprecated symbols defined
     82  * until 2013 or 2014 to avoid complicating the use of newer drivers on
     83  * older ntpd, which is often as easy as dropping in the refclock *.c.
     84  */
     85 #define LDISC_STD	0x000	/* standard */
     86 #define LDISC_CLK	0x001	/* depredated tty_clk \n */
     87 #define LDISC_CLKPPS	0x002	/* depredated tty_clk \377 */
     88 #define LDISC_ACTS	0x004	/* depredated tty_clk #* */
     89 #define LDISC_CHU	0x008	/* depredated */
     90 #define LDISC_PPS	0x010	/* depredated */
     91 #define LDISC_RAW	0x020	/* raw binary */
     92 #define LDISC_ECHO	0x040	/* enable echo */
     93 #define	LDISC_REMOTE	0x080	/* remote mode */
     94 #define	LDISC_7O1	0x100	/* 7-bit, odd parity for Z3801A */
     95 
     96 /* function prototypes for ntp_tty.c */
     97 #if !defined(SYS_VXWORKS) && !defined(SYS_WINNT)
     98 # if defined(HAVE_TERMIOS) || defined(HAVE_SYSV_TTYS) || \
     99      defined(HAVE_BSD_TTYS)
    100 extern	int	ntp_tty_setup(int, u_int, u_int);
    101 extern	int	ntp_tty_ioctl(int, u_int);
    102 # endif
    103 #endif
    104 
    105 extern	int	symBaud2numBaud(int symBaud);
    106 # if 0
    107 extern	int	numBaud2symBaud(int numBaud);
    108 #endif
    109 
    110 #endif /* NTP_TTY_H */
    111