[unix-history] / usr / src / sys / kern / tty_tb.c

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)tty_tb.c	7.2 (Berkeley) %G%
 */

#include "tb.h"
#if NTB > 0

/*
 * Line discipline for RS232 tablets;
 * supplies binary coordinate data.
 */
#include "param.h"
#include "systm.h"
#include "dir.h"
#include "user.h"
#include "tablet.h"
#include "tty.h"
#include "proc.h"
#include "inode.h"
#include "file.h"
#include "buf.h"
#include "uio.h"

/*
 * Tablet configuration table.
 */
struct	tbconf {
	short	tbc_recsize;	/* input record size in bytes */
	short	tbc_uiosize;	/* size of data record returned user */
	int	tbc_sync;	/* mask for finding sync byte/bit */
	int	(*tbc_decode)();/* decoding routine */
	char	*tbc_run;	/* enter run mode sequence */
	char	*tbc_point;	/* enter point mode sequence */
	char	*tbc_stop;	/* stop sequence */
	char	*tbc_start;	/* start/restart sequence */
	int	tbc_flags;
#define	TBF_POL	0x1	/* polhemus hack */
};

static	int tbdecode(), gtcodecode(), poldecode();
static	int tblresdecode(), tbhresdecode();

struct	tbconf tbconf[TBTYPE] = {
{ 0 },
{ 5, sizeof (struct tbpos), 0200, tbdecode, "6", "4" },
{ 5, sizeof (struct tbpos), 0200, tbdecode, "\1CN", "\1RT", "\2", "\4" },
{ 8, sizeof (struct gtcopos), 0200, gtcodecode },
{17, sizeof (struct polpos), 0200, poldecode, 0, 0, "\21", "\5\22\2\23",
 TBF_POL },
{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CN", "\1PT", "\2", "\4"},
{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CN", "\1PT", "\2", "\4"},
};

/*
 * Tablet state
 */
struct tb {
	int	tbflags;		/* mode & type bits */
#define	TBMAXREC	17	/* max input record size */
	char	cbuf[TBMAXREC];		/* input buffer */
	union {
		struct	tbpos tbpos;
		struct	gtcopos gtcopos;
		struct	polpos polpos;
	} rets;				/* processed state */
#define NTBS	16
} tb[NTBS];

/*
 * Open as tablet discipline; called on discipline change.
 */
/*ARGSUSED*/
tbopen(dev, tp)
	dev_t dev;
	register struct tty *tp;
{
	register struct tb *tbp;

	if (tp->t_line == TABLDISC)
		return (ENODEV);
	ttywflush(tp);
	for (tbp = tb; tbp < &tb[NTBS]; tbp++)
		if (tbp->tbflags == 0)
			break;
	if (tbp >= &tb[NTBS])
		return (EBUSY);
	tbp->tbflags = TBTIGER|TBPOINT;		/* default */
	tp->t_cp = tbp->cbuf;
	tp->t_inbuf = 0;
	bzero((caddr_t)&tbp->rets, sizeof (tbp->rets));
	tp->T_LINEP = (caddr_t)tbp;
	tp->t_flags |= LITOUT;
	return (0);
}

/*
 * Line discipline change or last device close.
 */
tbclose(tp)
	register struct tty *tp;
{
	register int s;
	int modebits = TBPOINT|TBSTOP;

	tbioctl(tp, BIOSMODE, &modebits, 0);
	s = spltty();
	((struct tb *)tp->T_LINEP)->tbflags = 0;
	tp->t_cp = 0;
	tp->t_inbuf = 0;
	tp->t_rawq.c_cc = 0;		/* clear queues -- paranoid */
	tp->t_canq.c_cc = 0;
	tp->t_line = 0;			/* paranoid: avoid races */
	splx(s);
}

/*
 * Read from a tablet line.
 * Characters have been buffered in a buffer and decoded.
 */
tbread(tp, uio)
	register struct tty *tp;
	struct uio *uio;
{
	register struct tb *tbp = (struct tb *)tp->T_LINEP;
	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	int ret;

	if ((tp->t_state&TS_CARR_ON) == 0)
		return (EIO);
	ret = uiomove(&tbp->rets, tc->tbc_uiosize, UIO_READ, uio);
	if (tc->tbc_flags&TBF_POL)
		tbp->rets.polpos.p_key = ' ';
	return (ret);
}

/*
 * Low level character input routine.
 * Stuff the character in the buffer, and decode
 * if all the chars are there.
 *
 * This routine could be expanded in-line in the receiver
 * interrupt routine to make it run as fast as possible.
 */
tbinput(c, tp)
	register int c;
	register struct tty *tp;
{
	register struct tb *tbp = (struct tb *)tp->T_LINEP;
	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];

	if (tc->tbc_recsize == 0 || tc->tbc_decode == 0)	/* paranoid? */
		return;
	/*
	 * Locate sync bit/byte or reset input buffer.
	 */
	if (c&tc->tbc_sync || tp->t_inbuf == tc->tbc_recsize) {
		tp->t_cp = tbp->cbuf;
		tp->t_inbuf = 0;
	}
	*tp->t_cp++ = c&0177;
	/*
	 * Call decode routine only if a full record has been collected.
	 */
	if (++tp->t_inbuf == tc->tbc_recsize)
		(*tc->tbc_decode)(tbp->cbuf, &tbp->rets);
}

/*
 * Decode GTCO 8 byte format (high res, tilt, and pressure).
 */
static
gtcodecode(cp, tbpos)
	register char *cp;
	register struct gtcopos *tbpos;
{

	tbpos->pressure = *cp >> 2;
	tbpos->status = (tbpos->pressure > 16) | TBINPROX; /* half way down */
	tbpos->xpos = (*cp++ & 03) << 14;
	tbpos->xpos |= *cp++ << 7;
	tbpos->xpos |= *cp++;
	tbpos->ypos = (*cp++ & 03) << 14;
	tbpos->ypos |= *cp++ << 7;
	tbpos->ypos |= *cp++;
	tbpos->xtilt = *cp++;
	tbpos->ytilt = *cp++;
	tbpos->scount++;
}

/*
 * Decode old Hitachi 5 byte format (low res).
 */
static
tbdecode(cp, tbpos)
	register char *cp;
	register struct tbpos *tbpos;
{
	register char byte;

	byte = *cp++;
	tbpos->status = (byte&0100) ? TBINPROX : 0;
	byte &= ~0100;
	if (byte > 036)
		tbpos->status |= 1 << ((byte-040)/2);
	tbpos->xpos = *cp++ << 7;
	tbpos->xpos |= *cp++;
	if (tbpos->xpos < 256)			/* tablet wraps around at 256 */
		tbpos->status &= ~TBINPROX;	/* make it out of proximity */
	tbpos->ypos = *cp++ << 7;
	tbpos->ypos |= *cp++;
	tbpos->scount++;
}

/*
 * Decode new Hitach 5-byte format (low res).
 */
static
tblresdecode(cp, tbpos)
	register char *cp;
	register struct tbpos *tbpos;
{

	*cp &= ~0100;		/* mask sync bit */
	tbpos->status = (*cp++ >> 2) | TBINPROX;
	tbpos->xpos = *cp++;
	tbpos->xpos |= *cp++ << 6;
	tbpos->ypos = *cp++;
	tbpos->ypos |= *cp++ << 6;
	tbpos->scount++;
}

/*
 * Decode new Hitach 6-byte format (high res).
 */
static
tbhresdecode(cp, tbpos)
	register char *cp;
	register struct tbpos *tbpos;
{
	char byte;

	byte = *cp++;
	tbpos->xpos = (byte & 03) << 14;
	tbpos->xpos |= *cp++ << 7;
	tbpos->xpos |= *cp++;
	tbpos->ypos = *cp++ << 14;
	tbpos->ypos |= *cp++ << 7;
	tbpos->ypos |= *cp++;
	tbpos->status = (byte >> 2) | TBINPROX;
	tbpos->scount++;
}

/*
 * Polhemus decode.
 */
static
poldecode(cp, polpos)
	register char *cp;
	register struct polpos *polpos;
{

	polpos->p_x = cp[4] | cp[3]<<7 | (cp[9] & 0x03) << 14;
	polpos->p_y = cp[6] | cp[5]<<7 | (cp[9] & 0x0c) << 12;
	polpos->p_z = cp[8] | cp[7]<<7 | (cp[9] & 0x30) << 10;
	polpos->p_azi = cp[11] | cp[10]<<7 | (cp[16] & 0x03) << 14;
	polpos->p_pit = cp[13] | cp[12]<<7 | (cp[16] & 0x0c) << 12;
	polpos->p_rol = cp[15] | cp[14]<<7 | (cp[16] & 0x30) << 10;
	polpos->p_stat = cp[1] | cp[0]<<7;
	if (cp[2] != ' ')
		polpos->p_key = cp[2];
}

/*ARGSUSED*/
tbioctl(tp, cmd, data, flag)
	struct tty *tp;
	caddr_t data;
{
	register struct tb *tbp = (struct tb *)tp->T_LINEP;

	switch (cmd) {

	case BIOGMODE:
		*(int *)data = tbp->tbflags & TBMODE;
		break;

	case BIOSTYPE:
		if (tbconf[*(int *)data & TBTYPE].tbc_recsize == 0 ||
		    tbconf[*(int *)data & TBTYPE].tbc_decode == 0)
			return (EINVAL);
		tbp->tbflags &= ~TBTYPE;
		tbp->tbflags |= *(int *)data & TBTYPE;
		/* fall thru... to set mode bits */

	case BIOSMODE: {
		register struct tbconf *tc;

		tbp->tbflags &= ~TBMODE;
		tbp->tbflags |= *(int *)data & TBMODE;
		tc = &tbconf[tbp->tbflags & TBTYPE];
		if (tbp->tbflags&TBSTOP) {
			if (tc->tbc_stop)
				ttyout(tc->tbc_stop, tp);
		} else if (tc->tbc_start)
			ttyout(tc->tbc_start, tp);
		if (tbp->tbflags&TBPOINT) {
			if (tc->tbc_point)
				ttyout(tc->tbc_point, tp);
		} else if (tc->tbc_run)
			ttyout(tc->tbc_run, tp);
		ttstart(tp);
		break;
	}

	case BIOGTYPE:
		*(int *)data = tbp->tbflags & TBTYPE;
		break;

	case TIOCSETD:
	case TIOCGETD:
	case TIOCGETP:
	case TIOCGETC:
		return (-1);		/* pass thru... */

	default:
		return (ENOTTY);
	}
	return (0);
}
#endif
Commit	Line	Data
da7c5cc6	1	/*
0880b18e	2	* Copyright (c) 1982, 1986 Regents of the University of California.
da7c5cc6 KM	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*
fb1db32c	6	* @(#)tty_tb.c 7.2 (Berkeley) %G%
da7c5cc6	7	*/
4f9a21f0 SL	8
	9	#include "tb.h"
	10	#if NTB > 0
	11
a5fcb39b SL	12	/*
	13	* Line discipline for RS232 tablets;
	14	* supplies binary coordinate data.
	15	*/
94368568 JB	16	#include "param.h"
	17	#include "systm.h"
	18	#include "dir.h"
	19	#include "user.h"
a5fcb39b	20	#include "tablet.h"
94368568 JB	21	#include "tty.h"
	22	#include "proc.h"
	23	#include "inode.h"
	24	#include "file.h"
94368568 JB	25	#include "buf.h"
94368568 JB	26	#include "uio.h"
4f9a21f0 SL	27
4f9a21f0 SL	28	/*
a5fcb39b	29	* Tablet configuration table.
4f9a21f0	30	*/
a5fcb39b SL	31	struct tbconf {
	32	short tbc_recsize; /* input record size in bytes */
	33	short tbc_uiosize; /* size of data record returned user */
	34	int tbc_sync; /* mask for finding sync byte/bit */
	35	int (tbc_decode)();/ decoding routine */
	36	char tbc_run; / enter run mode sequence */
	37	char tbc_point; / enter point mode sequence */
	38	char tbc_stop; / stop sequence */
	39	char tbc_start; / start/restart sequence */
	40	int tbc_flags;
	41	#define TBF_POL 0x1 /* polhemus hack */
	42	};
4f9a21f0	43
a5fcb39b SL	44	static int tbdecode(), gtcodecode(), poldecode();
a5fcb39b SL	45	static int tblresdecode(), tbhresdecode();
13b9086b	46
a5fcb39b SL	47	struct tbconf tbconf[TBTYPE] = {
	48	{ 0 },
	49	{ 5, sizeof (struct tbpos), 0200, tbdecode, "6", "4" },
	50	{ 5, sizeof (struct tbpos), 0200, tbdecode, "\1CN", "\1RT", "\2", "\4" },
	51	{ 8, sizeof (struct gtcopos), 0200, gtcodecode },
	52	{17, sizeof (struct polpos), 0200, poldecode, 0, 0, "\21", "\5\22\2\23",
	53	TBF_POL },
	54	{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CN", "\1PT", "\2", "\4"},
	55	{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CN", "\1PT", "\2", "\4"},
	56	};
	57
	58	/*
	59	* Tablet state
	60	*/
13b9086b	61	struct tb {
a5fcb39b SL	62	int tbflags; /* mode & type bits */
	63	#define TBMAXREC 17 /* max input record size */
	64	char cbuf[TBMAXREC]; /* input buffer */
	65	union {
	66	struct tbpos tbpos;
	67	struct gtcopos gtcopos;
	68	struct polpos polpos;
	69	} rets; /* processed state */
	70	#define NTBS 16
13b9086b	71	} tb[NTBS];
4f9a21f0 SL	72
4f9a21f0 SL	73	/*
a5fcb39b	74	* Open as tablet discipline; called on discipline change.
4f9a21f0 SL	75	*/
	76	/ARGSUSED/
	77	tbopen(dev, tp)
942f05a9 SL	78	dev_t dev;
942f05a9 SL	79	register struct tty *tp;
4f9a21f0	80	{
13b9086b	81	register struct tb *tbp;
4f9a21f0	82
a5fcb39b	83	if (tp->t_line == TABLDISC)
13b9086b	84	return (ENODEV);
88a7a62a	85	ttywflush(tp);
13b9086b	86	for (tbp = tb; tbp < &tb[NTBS]; tbp++)
a5fcb39b	87	if (tbp->tbflags == 0)
13b9086b SL	88	break;
	89	if (tbp >= &tb[NTBS])
	90	return (EBUSY);
a5fcb39b	91	tbp->tbflags = TBTIGER\|TBPOINT; /* default */
13b9086b	92	tp->t_cp = tbp->cbuf;
4f9a21f0	93	tp->t_inbuf = 0;
a5fcb39b SL	94	bzero((caddr_t)&tbp->rets, sizeof (tbp->rets));
	95	tp->T_LINEP = (caddr_t)tbp;
	96	tp->t_flags \|= LITOUT;
830bbc16	97	return (0);
4f9a21f0 SL	98	}
	99
	100	/*
a5fcb39b	101	* Line discipline change or last device close.
4f9a21f0 SL	102	*/
4f9a21f0 SL	103	tbclose(tp)
830bbc16	104	register struct tty *tp;
4f9a21f0	105	{
a5fcb39b SL	106	register int s;
a5fcb39b SL	107	int modebits = TBPOINT\|TBSTOP;
4f9a21f0	108
a5fcb39b	109	tbioctl(tp, BIOSMODE, &modebits, 0);
fb1db32c	110	s = spltty();
a5fcb39b	111	((struct tb *)tp->T_LINEP)->tbflags = 0;
4f9a21f0 SL	112	tp->t_cp = 0;
	113	tp->t_inbuf = 0;
	114	tp->t_rawq.c_cc = 0; /* clear queues -- paranoid */
	115	tp->t_canq.c_cc = 0;
4a5e6198	116	tp->t_line = 0; /* paranoid: avoid races */
4f9a21f0 SL	117	splx(s);
	118	}
	119
	120	/*
	121	* Read from a tablet line.
a5fcb39b	122	* Characters have been buffered in a buffer and decoded.
4f9a21f0	123	*/
740e4029 BJ	124	tbread(tp, uio)
	125	register struct tty *tp;
	126	struct uio *uio;
4f9a21f0	127	{
a5fcb39b SL	128	register struct tb tbp = (struct tb )tp->T_LINEP;
	129	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	130	int ret;
4f9a21f0	131
a5fcb39b	132	if ((tp->t_state&TS_CARR_ON) == 0)
840510a3	133	return (EIO);
a5fcb39b SL	134	ret = uiomove(&tbp->rets, tc->tbc_uiosize, UIO_READ, uio);
	135	if (tc->tbc_flags&TBF_POL)
	136	tbp->rets.polpos.p_key = ' ';
	137	return (ret);
4f9a21f0 SL	138	}
	139
	140	/*
	141	* Low level character input routine.
a5fcb39b	142	* Stuff the character in the buffer, and decode
4f9a21f0 SL	143	* if all the chars are there.
	144	*
	145	* This routine could be expanded in-line in the receiver
a5fcb39b	146	* interrupt routine to make it run as fast as possible.
4f9a21f0	147	*/
4f9a21f0	148	tbinput(c, tp)
840510a3 BJ	149	register int c;
840510a3 BJ	150	register struct tty *tp;
4f9a21f0	151	{
a5fcb39b SL	152	register struct tb tbp = (struct tb )tp->T_LINEP;
	153	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	154
	155	if (tc->tbc_recsize == 0 \|\| tc->tbc_decode == 0) /* paranoid? */
	156	return;
	157	/*
	158	* Locate sync bit/byte or reset input buffer.
	159	*/
	160	if (c&tc->tbc_sync \|\| tp->t_inbuf == tc->tbc_recsize) {
	161	tp->t_cp = tbp->cbuf;
	162	tp->t_inbuf = 0;
4f9a21f0	163	}
a5fcb39b SL	164	*tp->t_cp++ = c&0177;
	165	/*
	166	* Call decode routine only if a full record has been collected.
	167	*/
	168	if (++tp->t_inbuf == tc->tbc_recsize)
	169	(*tc->tbc_decode)(tbp->cbuf, &tbp->rets);
4f9a21f0 SL	170	}
	171
	172	/*
a5fcb39b	173	* Decode GTCO 8 byte format (high res, tilt, and pressure).
4f9a21f0	174	*/
a5fcb39b SL	175	static
a5fcb39b SL	176	gtcodecode(cp, tbpos)
4f9a21f0	177	register char *cp;
a5fcb39b	178	register struct gtcopos *tbpos;
4f9a21f0 SL	179	{
4f9a21f0 SL	180
a5fcb39b SL	181	tbpos->pressure = *cp >> 2;
	182	tbpos->status = (tbpos->pressure > 16) \| TBINPROX; /* half way down */
	183	tbpos->xpos = (*cp++ & 03) << 14;
	184	tbpos->xpos \|= *cp++ << 7;
	185	tbpos->xpos \|= *cp++;
	186	tbpos->ypos = (*cp++ & 03) << 14;
	187	tbpos->ypos \|= *cp++ << 7;
	188	tbpos->ypos \|= *cp++;
	189	tbpos->xtilt = *cp++;
	190	tbpos->ytilt = *cp++;
13b9086b	191	tbpos->scount++;
4f9a21f0 SL	192	}
	193
	194	/*
a5fcb39b	195	* Decode old Hitachi 5 byte format (low res).
4f9a21f0	196	*/
a5fcb39b	197	static
13b9086b	198	tbdecode(cp, tbpos)
4f9a21f0	199	register char *cp;
13b9086b	200	register struct tbpos *tbpos;
4f9a21f0	201	{
4f9a21f0 SL	202	register char byte;
	203
	204	byte = *cp++;
a5fcb39b	205	tbpos->status = (byte&0100) ? TBINPROX : 0;
4f9a21f0	206	byte &= ~0100;
840510a3	207	if (byte > 036)
a5fcb39b SL	208	tbpos->status \|= 1 << ((byte-040)/2);
	209	tbpos->xpos = *cp++ << 7;
	210	tbpos->xpos \|= *cp++;
	211	if (tbpos->xpos < 256) /* tablet wraps around at 256 */
	212	tbpos->status &= ~TBINPROX; /* make it out of proximity */
	213	tbpos->ypos = *cp++ << 7;
	214	tbpos->ypos \|= *cp++;
	215	tbpos->scount++;
	216	}
	217
	218	/*
	219	* Decode new Hitach 5-byte format (low res).
	220	*/
	221	static
	222	tblresdecode(cp, tbpos)
	223	register char *cp;
	224	register struct tbpos *tbpos;
	225	{
	226
	227	cp &= ~0100; / mask sync bit */
	228	tbpos->status = (*cp++ >> 2) \| TBINPROX;
	229	tbpos->xpos = *cp++;
	230	tbpos->xpos \|= *cp++ << 6;
	231	tbpos->ypos = *cp++;
	232	tbpos->ypos \|= *cp++ << 6;
	233	tbpos->scount++;
	234	}
	235
	236	/*
	237	* Decode new Hitach 6-byte format (high res).
	238	*/
	239	static
	240	tbhresdecode(cp, tbpos)
	241	register char *cp;
	242	register struct tbpos *tbpos;
	243	{
	244	char byte;
	245
	246	byte = *cp++;
	247	tbpos->xpos = (byte & 03) << 14;
	248	tbpos->xpos \|= *cp++ << 7;
	249	tbpos->xpos \|= *cp++;
	250	tbpos->ypos = *cp++ << 14;
	251	tbpos->ypos \|= *cp++ << 7;
	252	tbpos->ypos \|= *cp++;
	253	tbpos->status = (byte >> 2) \| TBINPROX;
13b9086b	254	tbpos->scount++;
4f9a21f0 SL	255	}
	256
	257	/*
a5fcb39b	258	* Polhemus decode.
4f9a21f0	259	*/
a5fcb39b SL	260	static
	261	poldecode(cp, polpos)
	262	register char *cp;
	263	register struct polpos *polpos;
	264	{
	265
	266	polpos->p_x = cp[4] \| cp[3]<<7 \| (cp[9] & 0x03) << 14;
	267	polpos->p_y = cp[6] \| cp[5]<<7 \| (cp[9] & 0x0c) << 12;
	268	polpos->p_z = cp[8] \| cp[7]<<7 \| (cp[9] & 0x30) << 10;
	269	polpos->p_azi = cp[11] \| cp[10]<<7 \| (cp[16] & 0x03) << 14;
	270	polpos->p_pit = cp[13] \| cp[12]<<7 \| (cp[16] & 0x0c) << 12;
	271	polpos->p_rol = cp[15] \| cp[14]<<7 \| (cp[16] & 0x30) << 10;
	272	polpos->p_stat = cp[1] \| cp[0]<<7;
	273	if (cp[2] != ' ')
	274	polpos->p_key = cp[2];
	275	}
	276
4f9a21f0	277	/ARGSUSED/
942f05a9 SL	278	tbioctl(tp, cmd, data, flag)
	279	struct tty *tp;
	280	caddr_t data;
4f9a21f0	281	{
a5fcb39b	282	register struct tb tbp = (struct tb )tp->T_LINEP;
4f9a21f0	283
4f9a21f0 SL	284	switch (cmd) {
4f9a21f0 SL	285
a5fcb39b SL	286	case BIOGMODE:
	287	(int )data = tbp->tbflags & TBMODE;
	288	break;
	289
	290	case BIOSTYPE:
	291	if (tbconf[(int )data & TBTYPE].tbc_recsize == 0 \|\|
	292	tbconf[(int )data & TBTYPE].tbc_decode == 0)
	293	return (EINVAL);
	294	tbp->tbflags &= ~TBTYPE;
	295	tbp->tbflags \|= (int )data & TBTYPE;
	296	/* fall thru... to set mode bits */
	297
	298	case BIOSMODE: {
	299	register struct tbconf *tc;
	300
	301	tbp->tbflags &= ~TBMODE;
	302	tbp->tbflags \|= (int )data & TBMODE;
	303	tc = &tbconf[tbp->tbflags & TBTYPE];
	304	if (tbp->tbflags&TBSTOP) {
	305	if (tc->tbc_stop)
	306	ttyout(tc->tbc_stop, tp);
	307	} else if (tc->tbc_start)
	308	ttyout(tc->tbc_start, tp);
	309	if (tbp->tbflags&TBPOINT) {
	310	if (tc->tbc_point)
	311	ttyout(tc->tbc_point, tp);
	312	} else if (tc->tbc_run)
	313	ttyout(tc->tbc_run, tp);
	314	ttstart(tp);
	315	break;
	316	}
	317
	318	case BIOGTYPE:
	319	(int )data = tbp->tbflags & TBTYPE;
	320	break;
	321
4f9a21f0 SL	322	case TIOCSETD:
	323	case TIOCGETD:
	324	case TIOCGETP:
	325	case TIOCGETC:
a5fcb39b SL	326	return (-1); /* pass thru... */
	327
	328	default:
	329	return (ENOTTY);
4f9a21f0	330	}
4f9a21f0 SL	331	return (0);
	332	}
	333	#endif