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

/*-
 * Copyright (c) 1982, 1986, 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)tty_tb.c	7.8 (Berkeley) %G%
 */

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

/*
 * Line discipline for RS232 tablets;
 * supplies binary coordinate data.
 */
#include <sys/param.h>
#include <sys/tablet.h>
#include <sys/tty.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 */
#define	TBF_INPROX	0x2	/* tablet has proximity info */
};

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",
  TBF_INPROX },
{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CN", "\1PT", "\2", "\4",
  TBF_INPROX },
{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CL\33", "\1PT\33", 0, 0},
{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CL\33", "\1PT\33", 0, 0},
};

/*
 * 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);
	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)(tc, tbp->cbuf, &tbp->rets);
}

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

	*cp &= ~0100;		/* mask sync bit */
	tbpos->status = (*cp++ >> 2) | TBINPROX;
	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
		tbpos->status &= ~(020|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(tc, cp, tbpos)
	struct tbconf *tc;
	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;
	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
		tbpos->status &= ~(020|TBINPROX);
	tbpos->scount++;
}

/*
 * Polhemus decode.
 */
static
poldecode(tc, cp, polpos)
	struct tbconf *tc;
	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
f406ae69 KB	1	/*-
	2	* Copyright (c) 1982, 1986, 1991 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
da7c5cc6	6	*
38a01dbe	7	* @(#)tty_tb.c 7.8 (Berkeley) %G%
da7c5cc6	8	*/
4f9a21f0 SL	9
	10	#include "tb.h"
	11	#if NTB > 0
	12
a5fcb39b SL	13	/*
	14	* Line discipline for RS232 tablets;
	15	* supplies binary coordinate data.
	16	*/
38a01dbe KB	17	#include <sys/param.h>
	18	#include <sys/tablet.h>
	19	#include <sys/tty.h>
4f9a21f0 SL	20
4f9a21f0 SL	21	/*
a5fcb39b	22	* Tablet configuration table.
4f9a21f0	23	*/
a5fcb39b SL	24	struct tbconf {
	25	short tbc_recsize; /* input record size in bytes */
	26	short tbc_uiosize; /* size of data record returned user */
	27	int tbc_sync; /* mask for finding sync byte/bit */
	28	int (tbc_decode)();/ decoding routine */
	29	char tbc_run; / enter run mode sequence */
	30	char tbc_point; / enter point mode sequence */
	31	char tbc_stop; / stop sequence */
	32	char tbc_start; / start/restart sequence */
	33	int tbc_flags;
729ea429 SL	34	#define TBF_POL 0x1 /* polhemus hack */
729ea429 SL	35	#define TBF_INPROX 0x2 /* tablet has proximity info */
a5fcb39b	36	};
4f9a21f0	37
a5fcb39b SL	38	static int tbdecode(), gtcodecode(), poldecode();
a5fcb39b SL	39	static int tblresdecode(), tbhresdecode();
13b9086b	40
a5fcb39b SL	41	struct tbconf tbconf[TBTYPE] = {
	42	{ 0 },
	43	{ 5, sizeof (struct tbpos), 0200, tbdecode, "6", "4" },
	44	{ 5, sizeof (struct tbpos), 0200, tbdecode, "\1CN", "\1RT", "\2", "\4" },
	45	{ 8, sizeof (struct gtcopos), 0200, gtcodecode },
	46	{17, sizeof (struct polpos), 0200, poldecode, 0, 0, "\21", "\5\22\2\23",
729ea429 SL	47	TBF_POL },
	48	{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CN", "\1PT", "\2", "\4",
	49	TBF_INPROX },
	50	{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CN", "\1PT", "\2", "\4",
	51	TBF_INPROX },
	52	{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CL\33", "\1PT\33", 0, 0},
	53	{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CL\33", "\1PT\33", 0, 0},
a5fcb39b SL	54	};
	55
	56	/*
	57	* Tablet state
	58	*/
13b9086b	59	struct tb {
a5fcb39b SL	60	int tbflags; /* mode & type bits */
	61	#define TBMAXREC 17 /* max input record size */
	62	char cbuf[TBMAXREC]; /* input buffer */
	63	union {
	64	struct tbpos tbpos;
	65	struct gtcopos gtcopos;
	66	struct polpos polpos;
	67	} rets; /* processed state */
	68	#define NTBS 16
13b9086b	69	} tb[NTBS];
4f9a21f0 SL	70
4f9a21f0 SL	71	/*
a5fcb39b	72	* Open as tablet discipline; called on discipline change.
4f9a21f0 SL	73	*/
	74	/ARGSUSED/
	75	tbopen(dev, tp)
942f05a9 SL	76	dev_t dev;
942f05a9 SL	77	register struct tty *tp;
4f9a21f0	78	{
13b9086b	79	register struct tb *tbp;
4f9a21f0	80
a5fcb39b	81	if (tp->t_line == TABLDISC)
13b9086b	82	return (ENODEV);
88a7a62a	83	ttywflush(tp);
13b9086b	84	for (tbp = tb; tbp < &tb[NTBS]; tbp++)
a5fcb39b	85	if (tbp->tbflags == 0)
13b9086b SL	86	break;
	87	if (tbp >= &tb[NTBS])
	88	return (EBUSY);
a5fcb39b	89	tbp->tbflags = TBTIGER\|TBPOINT; /* default */
13b9086b	90	tp->t_cp = tbp->cbuf;
4f9a21f0	91	tp->t_inbuf = 0;
a5fcb39b SL	92	bzero((caddr_t)&tbp->rets, sizeof (tbp->rets));
	93	tp->T_LINEP = (caddr_t)tbp;
	94	tp->t_flags \|= LITOUT;
830bbc16	95	return (0);
4f9a21f0 SL	96	}
	97
	98	/*
a5fcb39b	99	* Line discipline change or last device close.
4f9a21f0 SL	100	*/
4f9a21f0 SL	101	tbclose(tp)
830bbc16	102	register struct tty *tp;
4f9a21f0	103	{
a5fcb39b SL	104	register int s;
a5fcb39b SL	105	int modebits = TBPOINT\|TBSTOP;
4f9a21f0	106
a5fcb39b	107	tbioctl(tp, BIOSMODE, &modebits, 0);
fb1db32c	108	s = spltty();
a5fcb39b	109	((struct tb *)tp->T_LINEP)->tbflags = 0;
4f9a21f0 SL	110	tp->t_cp = 0;
	111	tp->t_inbuf = 0;
	112	tp->t_rawq.c_cc = 0; /* clear queues -- paranoid */
	113	tp->t_canq.c_cc = 0;
4a5e6198	114	tp->t_line = 0; /* paranoid: avoid races */
4f9a21f0 SL	115	splx(s);
	116	}
	117
	118	/*
	119	* Read from a tablet line.
a5fcb39b	120	* Characters have been buffered in a buffer and decoded.
4f9a21f0	121	*/
740e4029 BJ	122	tbread(tp, uio)
	123	register struct tty *tp;
	124	struct uio *uio;
4f9a21f0	125	{
a5fcb39b SL	126	register struct tb tbp = (struct tb )tp->T_LINEP;
	127	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	128	int ret;
4f9a21f0	129
a5fcb39b	130	if ((tp->t_state&TS_CARR_ON) == 0)
840510a3	131	return (EIO);
c4ec2128	132	ret = uiomove(&tbp->rets, tc->tbc_uiosize, uio);
a5fcb39b SL	133	if (tc->tbc_flags&TBF_POL)
	134	tbp->rets.polpos.p_key = ' ';
	135	return (ret);
4f9a21f0 SL	136	}
	137
	138	/*
	139	* Low level character input routine.
a5fcb39b	140	* Stuff the character in the buffer, and decode
4f9a21f0 SL	141	* if all the chars are there.
	142	*
	143	* This routine could be expanded in-line in the receiver
a5fcb39b	144	* interrupt routine to make it run as fast as possible.
4f9a21f0	145	*/
4f9a21f0	146	tbinput(c, tp)
840510a3 BJ	147	register int c;
840510a3 BJ	148	register struct tty *tp;
4f9a21f0	149	{
a5fcb39b SL	150	register struct tb tbp = (struct tb )tp->T_LINEP;
	151	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	152
	153	if (tc->tbc_recsize == 0 \|\| tc->tbc_decode == 0) /* paranoid? */
	154	return;
	155	/*
	156	* Locate sync bit/byte or reset input buffer.
	157	*/
	158	if (c&tc->tbc_sync \|\| tp->t_inbuf == tc->tbc_recsize) {
	159	tp->t_cp = tbp->cbuf;
	160	tp->t_inbuf = 0;
4f9a21f0	161	}
a5fcb39b SL	162	*tp->t_cp++ = c&0177;
	163	/*
	164	* Call decode routine only if a full record has been collected.
	165	*/
	166	if (++tp->t_inbuf == tc->tbc_recsize)
729ea429	167	(*tc->tbc_decode)(tc, tbp->cbuf, &tbp->rets);
4f9a21f0 SL	168	}
	169
	170	/*
a5fcb39b	171	* Decode GTCO 8 byte format (high res, tilt, and pressure).
4f9a21f0	172	*/
a5fcb39b	173	static
729ea429 SL	174	gtcodecode(tc, cp, tbpos)
729ea429 SL	175	struct tbconf *tc;
4f9a21f0	176	register char *cp;
a5fcb39b	177	register struct gtcopos *tbpos;
4f9a21f0 SL	178	{
4f9a21f0 SL	179
a5fcb39b SL	180	tbpos->pressure = *cp >> 2;
	181	tbpos->status = (tbpos->pressure > 16) \| TBINPROX; /* half way down */
	182	tbpos->xpos = (*cp++ & 03) << 14;
	183	tbpos->xpos \|= *cp++ << 7;
	184	tbpos->xpos \|= *cp++;
	185	tbpos->ypos = (*cp++ & 03) << 14;
	186	tbpos->ypos \|= *cp++ << 7;
	187	tbpos->ypos \|= *cp++;
	188	tbpos->xtilt = *cp++;
	189	tbpos->ytilt = *cp++;
13b9086b	190	tbpos->scount++;
4f9a21f0 SL	191	}
	192
	193	/*
a5fcb39b	194	* Decode old Hitachi 5 byte format (low res).
4f9a21f0	195	*/
a5fcb39b	196	static
729ea429 SL	197	tbdecode(tc, cp, tbpos)
729ea429 SL	198	struct tbconf *tc;
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
729ea429 SL	222	tblresdecode(tc, cp, tbpos)
729ea429 SL	223	struct tbconf *tc;
a5fcb39b SL	224	register char *cp;
	225	register struct tbpos *tbpos;
	226	{
	227
	228	cp &= ~0100; / mask sync bit */
	229	tbpos->status = (*cp++ >> 2) \| TBINPROX;
729ea429 SL	230	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
729ea429 SL	231	tbpos->status &= ~(020\|TBINPROX);
a5fcb39b SL	232	tbpos->xpos = *cp++;
	233	tbpos->xpos \|= *cp++ << 6;
	234	tbpos->ypos = *cp++;
	235	tbpos->ypos \|= *cp++ << 6;
	236	tbpos->scount++;
	237	}
	238
	239	/*
	240	* Decode new Hitach 6-byte format (high res).
	241	*/
	242	static
729ea429 SL	243	tbhresdecode(tc, cp, tbpos)
729ea429 SL	244	struct tbconf *tc;
a5fcb39b SL	245	register char *cp;
	246	register struct tbpos *tbpos;
	247	{
	248	char byte;
	249
	250	byte = *cp++;
	251	tbpos->xpos = (byte & 03) << 14;
	252	tbpos->xpos \|= *cp++ << 7;
	253	tbpos->xpos \|= *cp++;
	254	tbpos->ypos = *cp++ << 14;
	255	tbpos->ypos \|= *cp++ << 7;
	256	tbpos->ypos \|= *cp++;
	257	tbpos->status = (byte >> 2) \| TBINPROX;
729ea429 SL	258	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
729ea429 SL	259	tbpos->status &= ~(020\|TBINPROX);
13b9086b	260	tbpos->scount++;
4f9a21f0 SL	261	}
	262
	263	/*
a5fcb39b	264	* Polhemus decode.
4f9a21f0	265	*/
a5fcb39b	266	static
729ea429 SL	267	poldecode(tc, cp, polpos)
729ea429 SL	268	struct tbconf *tc;
a5fcb39b SL	269	register char *cp;
	270	register struct polpos *polpos;
	271	{
	272
	273	polpos->p_x = cp[4] \| cp[3]<<7 \| (cp[9] & 0x03) << 14;
	274	polpos->p_y = cp[6] \| cp[5]<<7 \| (cp[9] & 0x0c) << 12;
	275	polpos->p_z = cp[8] \| cp[7]<<7 \| (cp[9] & 0x30) << 10;
	276	polpos->p_azi = cp[11] \| cp[10]<<7 \| (cp[16] & 0x03) << 14;
	277	polpos->p_pit = cp[13] \| cp[12]<<7 \| (cp[16] & 0x0c) << 12;
	278	polpos->p_rol = cp[15] \| cp[14]<<7 \| (cp[16] & 0x30) << 10;
	279	polpos->p_stat = cp[1] \| cp[0]<<7;
	280	if (cp[2] != ' ')
	281	polpos->p_key = cp[2];
	282	}
	283
4f9a21f0	284	/ARGSUSED/
942f05a9 SL	285	tbioctl(tp, cmd, data, flag)
	286	struct tty *tp;
	287	caddr_t data;
4f9a21f0	288	{
a5fcb39b	289	register struct tb tbp = (struct tb )tp->T_LINEP;
4f9a21f0	290
4f9a21f0 SL	291	switch (cmd) {
4f9a21f0 SL	292
a5fcb39b SL	293	case BIOGMODE:
	294	(int )data = tbp->tbflags & TBMODE;
	295	break;
	296
	297	case BIOSTYPE:
	298	if (tbconf[(int )data & TBTYPE].tbc_recsize == 0 \|\|
	299	tbconf[(int )data & TBTYPE].tbc_decode == 0)
	300	return (EINVAL);
	301	tbp->tbflags &= ~TBTYPE;
	302	tbp->tbflags \|= (int )data & TBTYPE;
	303	/* fall thru... to set mode bits */
	304
	305	case BIOSMODE: {
	306	register struct tbconf *tc;
	307
	308	tbp->tbflags &= ~TBMODE;
	309	tbp->tbflags \|= (int )data & TBMODE;
	310	tc = &tbconf[tbp->tbflags & TBTYPE];
	311	if (tbp->tbflags&TBSTOP) {
	312	if (tc->tbc_stop)
	313	ttyout(tc->tbc_stop, tp);
	314	} else if (tc->tbc_start)
	315	ttyout(tc->tbc_start, tp);
	316	if (tbp->tbflags&TBPOINT) {
	317	if (tc->tbc_point)
	318	ttyout(tc->tbc_point, tp);
	319	} else if (tc->tbc_run)
	320	ttyout(tc->tbc_run, tp);
	321	ttstart(tp);
	322	break;
	323	}
	324
	325	case BIOGTYPE:
	326	(int )data = tbp->tbflags & TBTYPE;
	327	break;
	328
4f9a21f0 SL	329	case TIOCSETD:
	330	case TIOCGETD:
	331	case TIOCGETP:
	332	case TIOCGETC:
a5fcb39b SL	333	return (-1); /* pass thru... */
	334
	335	default:
	336	return (ENOTTY);
4f9a21f0	337	}
4f9a21f0 SL	338	return (0);
	339	}
	340	#endif