[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	7.4 (Berkeley) %G%
 */

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

/*
 * Line discipline for RS232 tablets;
 * supplies binary coordinate data.
 */
#include "param.h"
#include "dir.h"
#include "user.h"
#include "tablet.h"
#include "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_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)(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
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	*
8f9fc740	6	* @(#)tty_tb.c 7.4 (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	16	#include "param.h"
94368568 JB	17	#include "dir.h"
94368568 JB	18	#include "user.h"
a5fcb39b	19	#include "tablet.h"
94368568	20	#include "tty.h"
4f9a21f0 SL	21
4f9a21f0 SL	22	/*
a5fcb39b	23	* Tablet configuration table.
4f9a21f0	24	*/
a5fcb39b SL	25	struct tbconf {
	26	short tbc_recsize; /* input record size in bytes */
	27	short tbc_uiosize; /* size of data record returned user */
	28	int tbc_sync; /* mask for finding sync byte/bit */
	29	int (tbc_decode)();/ decoding routine */
	30	char tbc_run; / enter run mode sequence */
	31	char tbc_point; / enter point mode sequence */
	32	char tbc_stop; / stop sequence */
	33	char tbc_start; / start/restart sequence */
	34	int tbc_flags;
729ea429 SL	35	#define TBF_POL 0x1 /* polhemus hack */
729ea429 SL	36	#define TBF_INPROX 0x2 /* tablet has proximity info */
a5fcb39b	37	};
4f9a21f0	38
a5fcb39b SL	39	static int tbdecode(), gtcodecode(), poldecode();
a5fcb39b SL	40	static int tblresdecode(), tbhresdecode();
13b9086b	41
a5fcb39b SL	42	struct tbconf tbconf[TBTYPE] = {
	43	{ 0 },
	44	{ 5, sizeof (struct tbpos), 0200, tbdecode, "6", "4" },
	45	{ 5, sizeof (struct tbpos), 0200, tbdecode, "\1CN", "\1RT", "\2", "\4" },
	46	{ 8, sizeof (struct gtcopos), 0200, gtcodecode },
	47	{17, sizeof (struct polpos), 0200, poldecode, 0, 0, "\21", "\5\22\2\23",
729ea429 SL	48	TBF_POL },
	49	{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CN", "\1PT", "\2", "\4",
	50	TBF_INPROX },
	51	{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CN", "\1PT", "\2", "\4",
	52	TBF_INPROX },
	53	{ 5, sizeof (struct tbpos), 0100, tblresdecode, "\1CL\33", "\1PT\33", 0, 0},
	54	{ 6, sizeof (struct tbpos), 0200, tbhresdecode, "\1CL\33", "\1PT\33", 0, 0},
a5fcb39b SL	55	};
	56
	57	/*
	58	* Tablet state
	59	*/
13b9086b	60	struct tb {
a5fcb39b SL	61	int tbflags; /* mode & type bits */
	62	#define TBMAXREC 17 /* max input record size */
	63	char cbuf[TBMAXREC]; /* input buffer */
	64	union {
	65	struct tbpos tbpos;
	66	struct gtcopos gtcopos;
	67	struct polpos polpos;
	68	} rets; /* processed state */
	69	#define NTBS 16
13b9086b	70	} tb[NTBS];
4f9a21f0 SL	71
4f9a21f0 SL	72	/*
a5fcb39b	73	* Open as tablet discipline; called on discipline change.
4f9a21f0 SL	74	*/
	75	/ARGSUSED/
	76	tbopen(dev, tp)
942f05a9 SL	77	dev_t dev;
942f05a9 SL	78	register struct tty *tp;
4f9a21f0	79	{
13b9086b	80	register struct tb *tbp;
4f9a21f0	81
a5fcb39b	82	if (tp->t_line == TABLDISC)
13b9086b	83	return (ENODEV);
88a7a62a	84	ttywflush(tp);
13b9086b	85	for (tbp = tb; tbp < &tb[NTBS]; tbp++)
a5fcb39b	86	if (tbp->tbflags == 0)
13b9086b SL	87	break;
	88	if (tbp >= &tb[NTBS])
	89	return (EBUSY);
a5fcb39b	90	tbp->tbflags = TBTIGER\|TBPOINT; /* default */
13b9086b	91	tp->t_cp = tbp->cbuf;
4f9a21f0	92	tp->t_inbuf = 0;
a5fcb39b SL	93	bzero((caddr_t)&tbp->rets, sizeof (tbp->rets));
	94	tp->T_LINEP = (caddr_t)tbp;
	95	tp->t_flags \|= LITOUT;
830bbc16	96	return (0);
4f9a21f0 SL	97	}
	98
	99	/*
a5fcb39b	100	* Line discipline change or last device close.
4f9a21f0 SL	101	*/
4f9a21f0 SL	102	tbclose(tp)
830bbc16	103	register struct tty *tp;
4f9a21f0	104	{
a5fcb39b SL	105	register int s;
a5fcb39b SL	106	int modebits = TBPOINT\|TBSTOP;
4f9a21f0	107
a5fcb39b	108	tbioctl(tp, BIOSMODE, &modebits, 0);
fb1db32c	109	s = spltty();
a5fcb39b	110	((struct tb *)tp->T_LINEP)->tbflags = 0;
4f9a21f0 SL	111	tp->t_cp = 0;
	112	tp->t_inbuf = 0;
	113	tp->t_rawq.c_cc = 0; /* clear queues -- paranoid */
	114	tp->t_canq.c_cc = 0;
4a5e6198	115	tp->t_line = 0; /* paranoid: avoid races */
4f9a21f0 SL	116	splx(s);
	117	}
	118
	119	/*
	120	* Read from a tablet line.
a5fcb39b	121	* Characters have been buffered in a buffer and decoded.
4f9a21f0	122	*/
740e4029 BJ	123	tbread(tp, uio)
	124	register struct tty *tp;
	125	struct uio *uio;
4f9a21f0	126	{
a5fcb39b SL	127	register struct tb tbp = (struct tb )tp->T_LINEP;
	128	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	129	int ret;
4f9a21f0	130
a5fcb39b	131	if ((tp->t_state&TS_CARR_ON) == 0)
840510a3	132	return (EIO);
a5fcb39b SL	133	ret = uiomove(&tbp->rets, tc->tbc_uiosize, UIO_READ, uio);
	134	if (tc->tbc_flags&TBF_POL)
	135	tbp->rets.polpos.p_key = ' ';
	136	return (ret);
4f9a21f0 SL	137	}
	138
	139	/*
	140	* Low level character input routine.
a5fcb39b	141	* Stuff the character in the buffer, and decode
4f9a21f0 SL	142	* if all the chars are there.
	143	*
	144	* This routine could be expanded in-line in the receiver
a5fcb39b	145	* interrupt routine to make it run as fast as possible.
4f9a21f0	146	*/
4f9a21f0	147	tbinput(c, tp)
840510a3 BJ	148	register int c;
840510a3 BJ	149	register struct tty *tp;
4f9a21f0	150	{
a5fcb39b SL	151	register struct tb tbp = (struct tb )tp->T_LINEP;
	152	register struct tbconf *tc = &tbconf[tbp->tbflags & TBTYPE];
	153
	154	if (tc->tbc_recsize == 0 \|\| tc->tbc_decode == 0) /* paranoid? */
	155	return;
	156	/*
	157	* Locate sync bit/byte or reset input buffer.
	158	*/
	159	if (c&tc->tbc_sync \|\| tp->t_inbuf == tc->tbc_recsize) {
	160	tp->t_cp = tbp->cbuf;
	161	tp->t_inbuf = 0;
4f9a21f0	162	}
a5fcb39b SL	163	*tp->t_cp++ = c&0177;
	164	/*
	165	* Call decode routine only if a full record has been collected.
	166	*/
	167	if (++tp->t_inbuf == tc->tbc_recsize)
729ea429	168	(*tc->tbc_decode)(tc, tbp->cbuf, &tbp->rets);
4f9a21f0 SL	169	}
	170
	171	/*
a5fcb39b	172	* Decode GTCO 8 byte format (high res, tilt, and pressure).
4f9a21f0	173	*/
a5fcb39b	174	static
729ea429 SL	175	gtcodecode(tc, cp, tbpos)
729ea429 SL	176	struct tbconf *tc;
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
729ea429 SL	198	tbdecode(tc, cp, tbpos)
729ea429 SL	199	struct tbconf *tc;
4f9a21f0	200	register char *cp;
13b9086b	201	register struct tbpos *tbpos;
4f9a21f0	202	{
4f9a21f0 SL	203	register char byte;
	204
	205	byte = *cp++;
a5fcb39b	206	tbpos->status = (byte&0100) ? TBINPROX : 0;
4f9a21f0	207	byte &= ~0100;
840510a3	208	if (byte > 036)
a5fcb39b SL	209	tbpos->status \|= 1 << ((byte-040)/2);
	210	tbpos->xpos = *cp++ << 7;
	211	tbpos->xpos \|= *cp++;
	212	if (tbpos->xpos < 256) /* tablet wraps around at 256 */
	213	tbpos->status &= ~TBINPROX; /* make it out of proximity */
	214	tbpos->ypos = *cp++ << 7;
	215	tbpos->ypos \|= *cp++;
	216	tbpos->scount++;
	217	}
	218
	219	/*
	220	* Decode new Hitach 5-byte format (low res).
	221	*/
	222	static
729ea429 SL	223	tblresdecode(tc, cp, tbpos)
729ea429 SL	224	struct tbconf *tc;
a5fcb39b SL	225	register char *cp;
	226	register struct tbpos *tbpos;
	227	{
	228
	229	cp &= ~0100; / mask sync bit */
	230	tbpos->status = (*cp++ >> 2) \| TBINPROX;
729ea429 SL	231	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
729ea429 SL	232	tbpos->status &= ~(020\|TBINPROX);
a5fcb39b SL	233	tbpos->xpos = *cp++;
	234	tbpos->xpos \|= *cp++ << 6;
	235	tbpos->ypos = *cp++;
	236	tbpos->ypos \|= *cp++ << 6;
	237	tbpos->scount++;
	238	}
	239
	240	/*
	241	* Decode new Hitach 6-byte format (high res).
	242	*/
	243	static
729ea429 SL	244	tbhresdecode(tc, cp, tbpos)
729ea429 SL	245	struct tbconf *tc;
a5fcb39b SL	246	register char *cp;
	247	register struct tbpos *tbpos;
	248	{
	249	char byte;
	250
	251	byte = *cp++;
	252	tbpos->xpos = (byte & 03) << 14;
	253	tbpos->xpos \|= *cp++ << 7;
	254	tbpos->xpos \|= *cp++;
	255	tbpos->ypos = *cp++ << 14;
	256	tbpos->ypos \|= *cp++ << 7;
	257	tbpos->ypos \|= *cp++;
	258	tbpos->status = (byte >> 2) \| TBINPROX;
729ea429 SL	259	if (tc->tbc_flags&TBF_INPROX && tbpos->status&020)
729ea429 SL	260	tbpos->status &= ~(020\|TBINPROX);
13b9086b	261	tbpos->scount++;
4f9a21f0 SL	262	}
	263
	264	/*
a5fcb39b	265	* Polhemus decode.
4f9a21f0	266	*/
a5fcb39b	267	static
729ea429 SL	268	poldecode(tc, cp, polpos)
729ea429 SL	269	struct tbconf *tc;
a5fcb39b SL	270	register char *cp;
	271	register struct polpos *polpos;
	272	{
	273
	274	polpos->p_x = cp[4] \| cp[3]<<7 \| (cp[9] & 0x03) << 14;
	275	polpos->p_y = cp[6] \| cp[5]<<7 \| (cp[9] & 0x0c) << 12;
	276	polpos->p_z = cp[8] \| cp[7]<<7 \| (cp[9] & 0x30) << 10;
	277	polpos->p_azi = cp[11] \| cp[10]<<7 \| (cp[16] & 0x03) << 14;
	278	polpos->p_pit = cp[13] \| cp[12]<<7 \| (cp[16] & 0x0c) << 12;
	279	polpos->p_rol = cp[15] \| cp[14]<<7 \| (cp[16] & 0x30) << 10;
	280	polpos->p_stat = cp[1] \| cp[0]<<7;
	281	if (cp[2] != ' ')
	282	polpos->p_key = cp[2];
	283	}
	284
4f9a21f0	285	/ARGSUSED/
942f05a9 SL	286	tbioctl(tp, cmd, data, flag)
	287	struct tty *tp;
	288	caddr_t data;
4f9a21f0	289	{
a5fcb39b	290	register struct tb tbp = (struct tb )tp->T_LINEP;
4f9a21f0	291
4f9a21f0 SL	292	switch (cmd) {
4f9a21f0 SL	293
a5fcb39b SL	294	case BIOGMODE:
	295	(int )data = tbp->tbflags & TBMODE;
	296	break;
	297
	298	case BIOSTYPE:
	299	if (tbconf[(int )data & TBTYPE].tbc_recsize == 0 \|\|
	300	tbconf[(int )data & TBTYPE].tbc_decode == 0)
	301	return (EINVAL);
	302	tbp->tbflags &= ~TBTYPE;
	303	tbp->tbflags \|= (int )data & TBTYPE;
	304	/* fall thru... to set mode bits */
	305
	306	case BIOSMODE: {
	307	register struct tbconf *tc;
	308
	309	tbp->tbflags &= ~TBMODE;
	310	tbp->tbflags \|= (int )data & TBMODE;
	311	tc = &tbconf[tbp->tbflags & TBTYPE];
	312	if (tbp->tbflags&TBSTOP) {
	313	if (tc->tbc_stop)
	314	ttyout(tc->tbc_stop, tp);
	315	} else if (tc->tbc_start)
	316	ttyout(tc->tbc_start, tp);
	317	if (tbp->tbflags&TBPOINT) {
	318	if (tc->tbc_point)
	319	ttyout(tc->tbc_point, tp);
	320	} else if (tc->tbc_run)
	321	ttyout(tc->tbc_run, tp);
	322	ttstart(tp);
	323	break;
	324	}
	325
	326	case BIOGTYPE:
	327	(int )data = tbp->tbflags & TBTYPE;
	328	break;
	329
4f9a21f0 SL	330	case TIOCSETD:
	331	case TIOCGETD:
	332	case TIOCGETP:
	333	case TIOCGETC:
a5fcb39b SL	334	return (-1); /* pass thru... */
	335
	336	default:
	337	return (ENOTTY);
4f9a21f0	338	}
4f9a21f0 SL	339	return (0);
	340	}
	341	#endif