xref: /netbsd/sys/arch/amiga/dev/ite.c (revision 6550d01e)
1 /*	$NetBSD: ite.c,v 1.90 2010/01/30 16:47:05 phx Exp $ */
2 
3 /*
4  * Copyright (c) 1990 The Regents of the University of California.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * the Systems Programming Group of the University of Utah Computer
9  * Science Department.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  *	from: Utah Hdr: ite.c 1.1 90/07/09
36  *	@(#)ite.c 7.6 (Berkeley) 5/16/91
37  */
38 /*
39  * Copyright (c) 1988 University of Utah.
40  *
41  * This code is derived from software contributed to Berkeley by
42  * the Systems Programming Group of the University of Utah Computer
43  * Science Department.
44  *
45  * Redistribution and use in source and binary forms, with or without
46  * modification, are permitted provided that the following conditions
47  * are met:
48  * 1. Redistributions of source code must retain the above copyright
49  *    notice, this list of conditions and the following disclaimer.
50  * 2. Redistributions in binary form must reproduce the above copyright
51  *    notice, this list of conditions and the following disclaimer in the
52  *    documentation and/or other materials provided with the distribution.
53  * 3. All advertising materials mentioning features or use of this software
54  *    must display the following acknowledgement:
55  *      This product includes software developed by the University of
56  *      California, Berkeley and its contributors.
57  * 4. Neither the name of the University nor the names of its contributors
58  *    may be used to endorse or promote products derived from this software
59  *    without specific prior written permission.
60  *
61  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71  * SUCH DAMAGE.
72  *
73  *	from: Utah Hdr: ite.c 1.1 90/07/09
74  *	@(#)ite.c 7.6 (Berkeley) 5/16/91
75  */
76 
77 /*
78  * ite - bitmaped terminal.
79  * Supports VT200, a few terminal features will be unavailable until
80  * the system actually probes the device (i.e. not after consinit())
81  */
82 
83 #include "opt_ddb.h"
84 
85 #include <sys/cdefs.h>
86 __KERNEL_RCSID(0, "$NetBSD: ite.c,v 1.90 2010/01/30 16:47:05 phx Exp $");
87 
88 #include <sys/param.h>
89 #include <sys/kernel.h>
90 #include <sys/device.h>
91 #include <sys/fcntl.h>
92 #include <sys/malloc.h>
93 #include <sys/ioctl.h>
94 #include <sys/tty.h>
95 #include <sys/termios.h>
96 #include <sys/systm.h>
97 #include <sys/callout.h>
98 #include <sys/proc.h>
99 #include <dev/cons.h>
100 #include <sys/kauth.h>
101 #include <amiga/amiga/cc.h>
102 #include <amiga/amiga/color.h>	/* DEBUG */
103 #include <amiga/amiga/custom.h>	/* DEBUG */
104 #include <amiga/amiga/device.h>
105 #include <amiga/amiga/isr.h>
106 #include <amiga/dev/iteioctl.h>
107 #include <amiga/dev/itevar.h>
108 #include <amiga/dev/kbdmap.h>
109 #include <amiga/dev/grfioctl.h>
110 #include <amiga/dev/grfvar.h>
111 
112 #include <machine/cpu.h>	/* for is_draco() */
113 
114 #include <sys/conf.h>
115 
116 #include "grfcc.h"
117 #include "ite.h"
118 
119 /*
120  * XXX go ask sys/kern/tty.c:ttselect()
121  */
122 
123 #define ITEUNIT(dev)	(minor(dev))
124 
125 #define SUBR_INIT(ip)		(ip)->grf->g_iteinit(ip)
126 #define SUBR_DEINIT(ip)		(ip)->grf->g_itedeinit(ip)
127 #define SUBR_PUTC(ip,c,dy,dx,m)	(ip)->grf->g_iteputc(ip,c,dy,dx,m)
128 #define SUBR_CURSOR(ip,flg)	(ip)->grf->g_itecursor(ip,flg)
129 #define SUBR_CLEAR(ip,sy,sx,h,w)	(ip)->grf->g_iteclear(ip,sy,sx,h,w)
130 #define SUBR_SCROLL(ip,sy,sx,count,dir)	\
131     (ip)->grf->g_itescroll(ip,sy,sx,count,dir)
132 
133 int	start_repeat_timeo = 30;	/* first repeat after x s/100 */
134 int	next_repeat_timeo = 10;		/* next repeat after x s/100 */
135 
136 int	ite_default_wrap = 1;		/* you want vtxxx-nam, binpatch */
137 
138 struct	ite_softc con_itesoftc;
139 u_char	cons_tabs[MAX_TABS];
140 
141 struct ite_softc *kbd_ite;
142 
143 /* audio bell stuff */
144 u_int bvolume = 10;
145 u_int bpitch = 660;
146 u_int bmsec = 75;
147 
148 static char *bsamplep;
149 static char sample[20] = {
150 	0,39,75,103,121,127,121,103,75,39,0,
151 	-39,-75,-103,-121,-127,-121,-103,-75,-39
152 };
153 
154 static callout_t repeat_ch;
155 
156 void iteputchar(int c, struct ite_softc *ip);
157 void ite_putstr(const char * s, int len, dev_t dev);
158 void iteattach(struct device *, struct device *, void *);
159 int itematch(struct device *, struct cfdata *, void *);
160 static void iteprecheckwrap(struct ite_softc *);
161 static void itecheckwrap(struct ite_softc *);
162 struct ite_softc *getitesp(dev_t);
163 void init_bell(void);
164 void ite_bell(void);
165 void itecnpollc(dev_t, int);
166 static void repeat_handler(void *);
167 inline static void ite_sendstr(const char *);
168 static void alignment_display(struct ite_softc *);
169 inline static void snap_cury(struct ite_softc *);
170 inline static void ite_dnchar(struct ite_softc *, int);
171 inline static void ite_inchar(struct ite_softc *, int);
172 inline static void ite_clrtoeol(struct ite_softc *);
173 inline static void ite_clrtobol(struct ite_softc *);
174 inline static void ite_clrline(struct ite_softc *);
175 inline static void ite_clrtoeos(struct ite_softc *);
176 inline static void ite_clrtobos(struct ite_softc *);
177 inline static void ite_clrscreen(struct ite_softc *);
178 inline static void ite_dnline(struct ite_softc *, int);
179 inline static void ite_inline(struct ite_softc *, int);
180 inline static void ite_lf(struct ite_softc *);
181 inline static void ite_crlf(struct ite_softc *);
182 inline static void ite_cr(struct ite_softc *);
183 inline static void ite_rlf(struct ite_softc *);
184 inline static int atoi(const char *);
185 inline static int ite_argnum(struct ite_softc *);
186 inline static int ite_zargnum(struct ite_softc *);
187 
188 CFATTACH_DECL(ite, sizeof(struct ite_softc),
189     itematch, iteattach, NULL, NULL);
190 
191 extern struct cfdriver ite_cd;
192 
193 dev_type_open(iteopen);
194 dev_type_close(iteclose);
195 dev_type_read(iteread);
196 dev_type_write(itewrite);
197 dev_type_ioctl(iteioctl);
198 dev_type_tty(itetty);
199 dev_type_poll(itepoll);
200 
201 const struct cdevsw ite_cdevsw = {
202 	iteopen, iteclose, iteread, itewrite, iteioctl,
203 	nostop, itetty, itepoll, nommap, ttykqfilter, D_TTY
204 };
205 
206 int
207 itematch(struct device *pdp, struct cfdata *cfp, void *auxp)
208 {
209 	struct grf_softc *gp;
210 	int maj;
211 
212 	gp = auxp;
213 
214 	/*
215 	 * XXX
216 	 * normally this would be done in attach, however
217 	 * during early init we do not have a device pointer
218 	 * and thus no unit number.
219 	 */
220 	maj = cdevsw_lookup_major(&ite_cdevsw);
221 	gp->g_itedev = makedev(maj, cfp->cf_unit);
222 	return(1);
223 }
224 
225 void
226 iteattach(struct device *pdp, struct device *dp, void *auxp)
227 {
228 	struct grf_softc *gp;
229 	struct ite_softc *ip;
230 	int s;
231 
232 	gp = (struct grf_softc *)auxp;
233 	if (dp) {
234 		ip = (struct ite_softc *)dp;
235 
236 		s = spltty();
237 		if (con_itesoftc.grf != NULL &&
238 		    con_itesoftc.grf->g_unit == gp->g_unit) {
239 			/*
240 			 * console reinit copy params over.
241 			 * and console always gets keyboard
242 			 */
243 			memcpy(&ip->grf, &con_itesoftc.grf,
244 			    (char *)&ip[1] - (char *)&ip->grf);
245 			con_itesoftc.grf = NULL;
246 			kbd_ite = ip;
247 		}
248 		ip->grf = gp;
249 		splx(s);
250 
251 		iteinit(gp->g_itedev);
252 		printf(": rows %d cols %d", ip->rows, ip->cols);
253 		printf(" repeat at (%d/100)s next at (%d/100)s",
254 		    start_repeat_timeo, next_repeat_timeo);
255 
256 		if (kbd_ite == NULL)
257 			kbd_ite = ip;
258 		if (kbd_ite == ip)
259 			printf(" has keyboard");
260 		printf("\n");
261 		ip->flags |= ITE_ATTACHED;
262 	} else {
263 		if (con_itesoftc.grf != NULL &&
264 		    con_itesoftc.grf->g_conpri > gp->g_conpri)
265 			return;
266 		con_itesoftc.grf = gp;
267 		con_itesoftc.tabs = cons_tabs;
268 	}
269 }
270 
271 struct ite_softc *
272 getitesp(dev_t dev)
273 {
274 	if (amiga_realconfig && con_itesoftc.grf == NULL)
275 		return(device_lookup_private(&ite_cd, ITEUNIT(dev)));
276 
277 	if (con_itesoftc.grf == NULL)
278 		panic("no ite_softc for console");
279 	return(&con_itesoftc);
280 }
281 
282 /*
283  * cons.c entry points into ite device.
284  */
285 
286 /*
287  * Return a priority in consdev->cn_pri field highest wins.  This function
288  * is called before any devices have been probed.
289  */
290 void
291 itecnprobe(struct consdev *cd)
292 {
293 	/*
294 	 * bring graphics layer up.
295 	 */
296 	config_console();
297 
298 	/*
299 	 * return priority of the best ite (already picked from attach)
300 	 * or CN_DEAD.
301 	 */
302 	if (con_itesoftc.grf == NULL)
303 		cd->cn_pri = CN_DEAD;
304 	else {
305 		cd->cn_pri = con_itesoftc.grf->g_conpri;
306 		cd->cn_dev = con_itesoftc.grf->g_itedev;
307 	}
308 }
309 
310 /* audio bell stuff */
311 void
312 init_bell(void)
313 {
314 	if (bsamplep != NULL)
315 		return;
316 	bsamplep = alloc_chipmem(20);
317 	if (bsamplep == NULL)
318 		panic("no chipmem for ite_bell");
319 
320 	memcpy(bsamplep, sample, 20);
321 }
322 
323 void
324 ite_bell(void)
325 {
326 	u_int clock;
327 	u_int period;
328 	u_int count;
329 
330 	clock = 3579545; 	/* PAL 3546895 */
331 
332 	/*
333 	 * the number of clock ticks per sample byte must be > 124
334 	 * ergo bpitch must be < clock / 124*20
335 	 * i.e. ~1443, 1300 to be safe (PAL etc.). also not zero obviously
336 	 */
337 	period = clock / (bpitch * 20);
338 	count = bmsec * bpitch / 1000;
339 
340 	play_sample(10, PREP_DMA_MEM(bsamplep), period, bvolume, 0x3, count);
341 }
342 
343 void
344 itecninit(struct consdev *cd)
345 {
346 	struct ite_softc *ip;
347 
348 	ip = getitesp(cd->cn_dev);
349 	iteinit(cd->cn_dev);
350 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
351 
352 #ifdef DRACO
353 	if (!is_draco())
354 #endif
355 	init_bell();
356 }
357 
358 /*
359  * ite_cnfinish() is called in ite_init() when the device is
360  * being probed in the normal fasion, thus we can finish setting
361  * up this ite now that the system is more functional.
362  */
363 void
364 ite_cnfinish(struct ite_softc *ip)
365 {
366 	static int done;
367 
368 	if (done)
369 		return;
370 	done = 1;
371 }
372 
373 int
374 itecngetc(dev_t dev)
375 {
376 	int c;
377 
378 	/* XXX this should be moved */
379 	kbdenable();
380 	do {
381 		c = kbdgetcn();
382 		c = ite_cnfilter(c, ITEFILT_CONSOLE);
383 	} while (c == -1);
384 	return (c);
385 }
386 
387 void
388 itecnputc(dev_t dev, int c)
389 {
390 	static int paniced;
391 	struct ite_softc *ip;
392 	char ch;
393 
394 	ip = getitesp(dev);
395 	ch = c;
396 
397 	if (panicstr && !paniced &&
398 	    (ip->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) {
399 		ite_on(dev, 3);
400 		paniced = 1;
401 	}
402 	iteputchar(ch, ip);
403 }
404 
405 void
406 itecnpollc(dev_t dev, int on)
407 {
408 }
409 
410 /*
411  * standard entry points to the device.
412  */
413 
414 /*
415  * iteinit() is the standard entry point for initialization of
416  * an ite device, it is also called from ite_cninit().
417  *
418  */
419 void
420 iteinit(dev_t dev)
421 {
422 	struct ite_softc *ip;
423 	static int kbdmap_loaded = 0;
424 
425 	ip = getitesp(dev);
426 	if (ip->flags & ITE_INITED)
427 		return;
428 	if (kbdmap_loaded == 0) {
429 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
430 		kbdmap_loaded = 1;
431 	}
432 
433 	callout_init(&repeat_ch, 0);
434 
435 	ip->cursorx = 0;
436 	ip->cursory = 0;
437 	if (ip->grf->g_iteinit == NULL)
438 		return;  /* grf has no console */
439 	SUBR_INIT(ip);
440 	SUBR_CURSOR(ip, DRAW_CURSOR);
441 	if (ip->tabs == NULL)
442 		ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK);
443 	ite_reset(ip);
444 	ip->flags |= ITE_INITED;
445 }
446 
447 int
448 iteopen(dev_t dev, int mode, int devtype, struct lwp *l)
449 {
450 	struct ite_softc *ip;
451 	struct tty *tp;
452 	int error, first, unit;
453 
454 	unit = ITEUNIT(dev);
455 	first = 0;
456 
457 	if (unit >= ite_cd.cd_ndevs)
458 		return ENXIO;
459 	ip = getitesp(dev);
460 	if (ip == NULL)
461 		return ENXIO;
462 	if ((ip->flags & ITE_ATTACHED) == 0)
463 		return ENXIO;
464 
465 	if (ip->tp == NULL) {
466 		tp = ip->tp = ttymalloc();
467 		tty_attach(tp);
468 	} else
469 		tp = ip->tp;
470 
471 	if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
472 		return (EBUSY);
473 
474 	if ((ip->flags & ITE_ACTIVE) == 0) {
475 		ite_on(dev, 0);
476 		first = 1;
477 	}
478 	tp->t_oproc = itestart;
479 	tp->t_param = ite_param;
480 	tp->t_dev = dev;
481 	if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
482 		ttychars(tp);
483 		tp->t_iflag = TTYDEF_IFLAG;
484 		tp->t_oflag = TTYDEF_OFLAG;
485 		tp->t_cflag = TTYDEF_CFLAG;
486 		tp->t_lflag = TTYDEF_LFLAG;
487 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
488 		tp->t_state = TS_CARR_ON;
489 		ttsetwater(tp);
490 	}
491 	error = ttyopen(tp, 0, mode & O_NONBLOCK);
492 	if (error)
493 		goto bad;
494 
495 	error = tp->t_linesw->l_open(dev, tp);
496 	if (error)
497 		goto bad;
498 
499 	tp->t_winsize.ws_row = ip->rows;
500 	tp->t_winsize.ws_col = ip->cols;
501 	kbdenable();
502 	return (0);
503 bad:
504 	if (first)
505 		ite_off(dev, 0);
506 	return (error);
507 }
508 
509 int
510 iteclose(dev_t dev, int flag, int mode, struct lwp *l)
511 {
512 	struct tty *tp;
513 
514 	tp = getitesp(dev)->tp;
515 
516 	KDASSERT(tp);
517 	tp->t_linesw->l_close(tp, flag);
518 	ttyclose(tp);
519 	ite_off(dev, 0);
520 	return (0);
521 }
522 
523 int
524 iteread(dev_t dev, struct uio *uio, int flag)
525 {
526 	struct tty *tp;
527 
528 	tp = getitesp(dev)->tp;
529 
530 	KDASSERT(tp);
531 	return tp->t_linesw->l_read(tp, uio, flag);
532 }
533 
534 int
535 itewrite(dev_t dev, struct uio *uio, int flag)
536 {
537 	struct tty *tp;
538 
539 	tp = getitesp(dev)->tp;
540 
541 	KDASSERT(tp);
542 	return tp->t_linesw->l_write(tp, uio, flag);
543 }
544 
545 int
546 itepoll(dev_t dev, int events, struct lwp *l)
547 {
548 	struct tty *tp;
549 
550 	tp = getitesp(dev)->tp;
551 
552 	KDASSERT(tp);
553 	return ((*tp->t_linesw->l_poll)(tp, events, l));
554 }
555 
556 struct tty *
557 itetty(dev_t dev)
558 {
559 	return (getitesp(dev)->tp);
560 }
561 
562 int
563 iteioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
564 {
565 	struct iterepeat *irp;
566 	struct ite_softc *ip;
567 	struct itebell *ib;
568 	struct tty *tp;
569 	int error;
570 
571 	ip = getitesp(dev);
572 	tp = ip->tp;
573 
574 	KDASSERT(tp);
575 
576 	error = tp->t_linesw->l_ioctl(tp, cmd, addr, flag, l);
577 	if (error != EPASSTHROUGH)
578 		return (error);
579 	error = ttioctl(tp, cmd, addr, flag, l);
580 	if (error != EPASSTHROUGH)
581 		return (error);
582 
583 	switch (cmd) {
584 	case ITEIOCGBELL:
585 		ib = (struct itebell *)addr;
586 		ib->volume = bvolume;
587 		ib->pitch = bpitch;
588 		ib->msec = bmsec;
589 		return (0);
590 	case ITEIOCSBELL:
591 		ib = (struct itebell *)addr;
592 
593 		if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH ||
594 		    ib->volume > MAXBVOLUME || ib->msec > MAXBTIME)
595 			return (EINVAL);
596 		bvolume = ib->volume;
597 		bpitch = ib->pitch;
598 		bmsec = ib->msec;
599 		return (0);
600 	case ITEIOCSKMAP:
601 		if (addr == 0)
602 			return(EFAULT);
603 		memcpy(&kbdmap, addr, sizeof(struct kbdmap));
604 		return(0);
605 	case ITEIOCGKMAP:
606 		if (addr == NULL)
607 			return(EFAULT);
608 		memcpy(addr, &kbdmap, sizeof(struct kbdmap));
609 		return(0);
610 	case ITEIOCGREPT:
611 		irp = (struct iterepeat *)addr;
612 		irp->start = start_repeat_timeo;
613 		irp->next = next_repeat_timeo;
614 		return (0);
615 	case ITEIOCSREPT:
616 		irp = (struct iterepeat *)addr;
617 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
618 			return(EINVAL);
619 		start_repeat_timeo = irp->start;
620 		next_repeat_timeo = irp->next;
621 		return(0);
622 	}
623 #if NGRFCC > 0
624 	/* XXX */
625 	if (minor(dev) == 0) {
626 		error = ite_grf_ioctl(ip, cmd, addr, flag, l);
627 		if (error >= 0)
628 			return (error);
629 	}
630 #endif
631 	return (EPASSTHROUGH);
632 }
633 
634 void
635 itestart(struct tty *tp)
636 {
637 	struct clist *rbp;
638 	struct ite_softc *ip;
639 	u_char buf[ITEBURST];
640 	int s, len;
641 
642 	ip = getitesp(tp->t_dev);
643 
644 	KDASSERT(tp);
645 
646 	s = spltty(); {
647 		if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
648 			goto out;
649 
650 		tp->t_state |= TS_BUSY;
651 		rbp = &tp->t_outq;
652 
653 		len = q_to_b(rbp, buf, ITEBURST);
654 	} splx(s);
655 
656 	/* Here is a really good place to implement pre/jumpscroll() */
657 	ite_putstr(buf, len, tp->t_dev);
658 
659 	s = spltty(); {
660 		tp->t_state &= ~TS_BUSY;
661 		/* we have characters remaining. */
662 		if (ttypull(tp)) {
663 			tp->t_state |= TS_TIMEOUT;
664 			callout_schedule(&tp->t_rstrt_ch, 1);
665 		}
666 	}
667  out:
668 	splx(s);
669 }
670 
671 void
672 ite_on(dev_t dev, int flag)
673 {
674 	struct ite_softc *ip;
675 	int unit;
676 
677 	unit = ITEUNIT(dev);
678 	ip = getitesp(dev);
679 
680 	/* force ite active, overriding graphics mode */
681 	if (flag & 1) {
682 		ip->flags |= ITE_ACTIVE;
683 		ip->flags &= ~(ITE_INGRF | ITE_INITED);
684 	}
685 	/* leave graphics mode */
686 	if (flag & 2) {
687 		ip->flags &= ~ITE_INGRF;
688 		if ((ip->flags & ITE_ACTIVE) == 0)
689 			return;
690 	}
691 	ip->flags |= ITE_ACTIVE;
692 	if (ip->flags & ITE_INGRF)
693 		return;
694 	iteinit(dev);
695 }
696 
697 void
698 ite_off(dev_t dev, int flag)
699 {
700 	struct ite_softc *ip;
701 
702 	ip = getitesp(dev);
703 	if (flag & 2)
704 		ip->flags |= ITE_INGRF;
705 	if ((ip->flags & ITE_ACTIVE) == 0)
706 		return;
707 	if ((flag & 1) ||
708 	    (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED)
709 		SUBR_DEINIT(ip);
710 	/* XXX hmm grfon() I think wants this to  go inactive. */
711 	if ((flag & 2) == 0)
712 		ip->flags &= ~ITE_ACTIVE;
713 }
714 
715 /* XXX called after changes made in underlying grf layer. */
716 /* I want to nuke this */
717 void
718 ite_reinit(dev_t dev)
719 {
720 	struct ite_softc *ip;
721 
722 	ip = getitesp(dev);
723 	ip->flags &= ~ITE_INITED;
724 	iteinit(dev);
725 }
726 
727 int
728 ite_param(struct tty *tp, struct termios *t)
729 {
730 	tp->t_ispeed = t->c_ispeed;
731 	tp->t_ospeed = t->c_ospeed;
732 	tp->t_cflag = t->c_cflag;
733 	return (0);
734 }
735 
736 void
737 ite_reset(struct ite_softc *ip)
738 {
739 	int i;
740 
741 	ip->curx = 0;
742 	ip->cury = 0;
743 	ip->attribute = ATTR_NOR;
744 	ip->save_curx = 0;
745 	ip->save_cury = 0;
746 	ip->save_attribute = ATTR_NOR;
747 	ip->ap = ip->argbuf;
748 	ip->emul_level = 0;
749 	ip->eightbit_C1 = 0;
750 	ip->top_margin = 0;
751 	ip->bottom_margin = ip->rows - 1;
752 	ip->inside_margins = 0;
753 	ip->linefeed_newline = 0;
754 	ip->auto_wrap = ite_default_wrap;
755 	ip->cursor_appmode = 0;
756 	ip->keypad_appmode = 0;
757 	ip->imode = 0;
758 	ip->key_repeat = 1;
759 	memset(ip->tabs, 0, ip->cols);
760 	for (i = 0; i < ip->cols; i++)
761 		ip->tabs[i] = ((i & 7) == 0);
762 }
763 
764 /*
765  * has to be global because of the shared filters.
766  */
767 static u_char key_mod;
768 static u_char last_dead;
769 
770 /* Used in console at startup only */
771 int
772 ite_cnfilter(u_char c, enum caller caller)
773 {
774 	struct key key;
775 	u_char code, up, mask;
776 	int s, i;
777 
778 	up = c & 0x80 ? 1 : 0;
779 	c &= 0x7f;
780 	code = 0;
781 
782 	s = spltty();
783 
784 	i = (int)c - KBD_LEFT_SHIFT;
785 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
786 		mask = 1 << i;
787 		if (up)
788 			key_mod &= ~mask;
789 		else
790 			key_mod |= mask;
791 		splx(s);
792 		return -1;
793 	}
794 
795 	if (up) {
796 		splx(s);
797 		return -1;
798 	}
799 
800 	/* translate modifiers */
801 	if (key_mod & KBD_MOD_SHIFT) {
802 		if (key_mod & KBD_MOD_ALT)
803 			key = kbdmap.alt_shift_keys[c];
804 		else
805 			key = kbdmap.shift_keys[c];
806 	} else if (key_mod & KBD_MOD_ALT)
807 		key = kbdmap.alt_keys[c];
808 	else {
809 		key = kbdmap.keys[c];
810 		/* if CAPS and key is CAPable (no pun intended) */
811 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
812 			key = kbdmap.shift_keys[c];
813 	}
814 	code = key.code;
815 
816 	/* if string return */
817 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
818 		splx(s);
819 		return -1;
820 	}
821 	/* handle dead keys */
822 	if (key.mode & KBD_MODE_DEAD) {
823 		/* if entered twice, send accent itself */
824 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
825 			last_dead = 0;
826 		else {
827 			last_dead = key.mode & KBD_MODE_ACCMASK;
828 			splx(s);
829 			return -1;
830 		}
831 	}
832 	if (last_dead) {
833 		/* can't apply dead flag to string-keys */
834 		if (code >= '@' && code < 0x7f)
835 			code =
836 			    acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
837 		last_dead = 0;
838 	}
839 	if (key_mod & KBD_MOD_CTRL)
840 		code &= 0x1f;
841 	if (key_mod & KBD_MOD_META)
842 		code |= 0x80;
843 
844 	/* do console mapping. */
845 	code = code == '\r' ? '\n' : code;
846 
847 	splx(s);
848 	return (code);
849 }
850 
851 /* And now the old stuff. */
852 
853 /* these are used to implement repeating keys.. */
854 static u_char last_char;
855 static u_char tout_pending;
856 
857 /*ARGSUSED*/
858 static void
859 repeat_handler(void *arg)
860 {
861 	tout_pending = 0;
862 	if (last_char)
863 		ite_filter(last_char, ITEFILT_REPEATER);
864 }
865 
866 void
867 ite_filter(u_char c, enum caller caller)
868 {
869 	struct tty *kbd_tty;
870 	u_char code, *str, up, mask;
871 	struct key key;
872 	int s, i;
873 
874 	if (kbd_ite == NULL || kbd_ite->tp == NULL)
875 		return;
876 
877 	kbd_tty = kbd_ite->tp;
878 
879 	/* have to make sure we're at spltty in here */
880 	s = spltty();
881 
882 	up = c & 0x80 ? 1 : 0;
883 	c &= 0x7f;
884 	code = 0;
885 
886 	i = (int)c - KBD_LEFT_SHIFT;
887 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
888 		mask = 1 << i;
889 		if (up)
890 			key_mod &= ~mask;
891 		else
892 			key_mod |= mask;
893 		splx(s);
894 		return;
895 	}
896 	/* stop repeating on up event */
897 	if (up) {
898 		if (tout_pending) {
899 			callout_stop(&repeat_ch);
900 			tout_pending = 0;
901 			last_char = 0;
902 		}
903 		splx(s);
904 		return;
905 	} else if (tout_pending && last_char != c) {
906 		/* different character, stop also */
907 		callout_stop(&repeat_ch);
908 		tout_pending = 0;
909 		last_char = 0;
910 	}
911 	/* Safety button, switch back to ascii keymap. */
912 	if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) {
913 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
914 
915 		splx(s);
916 		return;
917 #ifdef DDB
918 	} else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) {
919 		Debugger();
920 		splx(s);
921 		return;
922 #endif
923 	}
924 	/* translate modifiers */
925 	if (key_mod & KBD_MOD_SHIFT) {
926 		if (key_mod & KBD_MOD_ALT)
927 			key = kbdmap.alt_shift_keys[c];
928 		else
929 			key = kbdmap.shift_keys[c];
930 	} else if (key_mod & KBD_MOD_ALT)
931 		key = kbdmap.alt_keys[c];
932 	else {
933 		key = kbdmap.keys[c];
934 		/* if CAPS and key is CAPable (no pun intended) */
935 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
936 			key = kbdmap.shift_keys[c];
937 	}
938 	code = key.code;
939 
940 	/*
941 	 * arrange to repeat the keystroke. By doing this at the level
942 	 * of scan-codes, we can have function keys, and keys that
943 	 * send strings, repeat too. This also entitles an additional
944 	 * overhead, since we have to do the conversion each time, but
945 	 * I guess that's ok.
946 	 */
947 	if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) {
948 		tout_pending = 1;
949 		last_char = c;
950 		callout_reset(&repeat_ch,
951 		    start_repeat_timeo * hz / 100, repeat_handler, NULL);
952 	} else if (!tout_pending && caller == ITEFILT_REPEATER &&
953 	    kbd_ite->key_repeat) {
954 		tout_pending = 1;
955 		last_char = c;
956 		callout_reset(&repeat_ch,
957 		    next_repeat_timeo * hz / 100, repeat_handler, NULL);
958 	}
959 	/* handle dead keys */
960 	if (key.mode & KBD_MODE_DEAD) {
961 		/* if entered twice, send accent itself */
962 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
963 			last_dead = 0;
964 		else {
965 			last_dead = key.mode & KBD_MODE_ACCMASK;
966 			splx(s);
967 			return;
968 		}
969 	}
970 	if (last_dead) {
971 		/* can't apply dead flag to string-keys */
972 		if (!(key.mode & KBD_MODE_STRING) && code >= '@' &&
973 		    code < 0x7f)
974 			code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
975 		last_dead = 0;
976 	}
977 	/* if not string, apply META and CTRL modifiers */
978 	if (!(key.mode & KBD_MODE_STRING)
979 	    && (!(key.mode & KBD_MODE_KPAD) ||
980 		(kbd_ite && !kbd_ite->keypad_appmode))) {
981 		if (key_mod & KBD_MOD_CTRL)
982 			code &= 0x1f;
983 		if (key_mod & KBD_MOD_META)
984 			code |= 0x80;
985 	} else if ((key.mode & KBD_MODE_KPAD) &&
986 	    (kbd_ite && kbd_ite->keypad_appmode)) {
987 		static char in[] = {
988 		    0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */,
989 		    0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */,
990 		    0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */,
991 		    0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */,
992 		    0x5c /* / */, 0x5d /* * */
993 		};
994 		static const char *out = "pqrstuvwxymlnMPQRS";
995 		char *cp = strchr(in, c);
996 
997 		/*
998 		 * keypad-appmode sends SS3 followed by the above
999 		 * translated character
1000 		 */
1001 		kbd_tty->t_linesw->l_rint(27, kbd_tty);
1002 		kbd_tty->t_linesw->l_rint('O', kbd_tty);
1003 		kbd_tty->t_linesw->l_rint(out[cp - in], kbd_tty);
1004 		splx(s);
1005 		return;
1006 	} else {
1007 		/* *NO* I don't like this.... */
1008 		static u_char app_cursor[] =
1009 		{
1010 		    3, 27, 'O', 'A',
1011 		    3, 27, 'O', 'B',
1012 		    3, 27, 'O', 'C',
1013 		    3, 27, 'O', 'D'};
1014 
1015 		str = kbdmap.strings + code;
1016 		/*
1017 		 * if this is a cursor key, AND it has the default
1018 		 * keymap setting, AND we're in app-cursor mode, switch
1019 		 * to the above table. This is *nasty* !
1020 		 */
1021 		if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode
1022 		    && !memcmp(str, "\x03\x1b[", 3) &&
1023 		    strchr("ABCD", str[3]))
1024 			str = app_cursor + 4 * (str[3] - 'A');
1025 
1026 		/*
1027 		 * using a length-byte instead of 0-termination allows
1028 		 * to embed \0 into strings, although this is not used
1029 		 * in the default keymap
1030 		 */
1031 		for (i = *str++; i; i--)
1032 			kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1033 		splx(s);
1034 		return;
1035 	}
1036 	kbd_tty->t_linesw->l_rint(code, kbd_tty);
1037 
1038 	splx(s);
1039 	return;
1040 }
1041 
1042 /* helper functions, makes the code below more readable */
1043 inline static void
1044 ite_sendstr(const char *str)
1045 {
1046 	struct tty *kbd_tty;
1047 
1048 	kbd_tty = kbd_ite->tp;
1049 	KDASSERT(kbd_tty);
1050 	while (*str)
1051 		kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1052 }
1053 
1054 static void
1055 alignment_display(struct ite_softc *ip)
1056 {
1057   int i, j;
1058 
1059   for (j = 0; j < ip->rows; j++)
1060     for (i = 0; i < ip->cols; i++)
1061       SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
1062   attrclr(ip, 0, 0, ip->rows, ip->cols);
1063   SUBR_CURSOR(ip, DRAW_CURSOR);
1064 }
1065 
1066 inline static void
1067 snap_cury(struct ite_softc *ip)
1068 {
1069   if (ip->inside_margins)
1070     {
1071       if (ip->cury < ip->top_margin)
1072 	ip->cury = ip->top_margin;
1073       if (ip->cury > ip->bottom_margin)
1074 	ip->cury = ip->bottom_margin;
1075     }
1076 }
1077 
1078 inline static void
1079 ite_dnchar(struct ite_softc *ip, int n)
1080 {
1081   n = min(n, ip->cols - ip->curx);
1082   if (n < ip->cols - ip->curx)
1083     {
1084       SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
1085       attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
1086 	      1, ip->cols - ip->curx - n);
1087       attrclr(ip, ip->cury, ip->cols - n, 1, n);
1088     }
1089   while (n-- > 0)
1090     SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1091   SUBR_CURSOR(ip, DRAW_CURSOR);
1092 }
1093 
1094 inline static void
1095 ite_inchar(struct ite_softc *ip, int n)
1096 {
1097   n = min(n, ip->cols - ip->curx);
1098   if (n < ip->cols - ip->curx)
1099     {
1100       SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1101       attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1102 	      1, ip->cols - ip->curx - n);
1103       attrclr(ip, ip->cury, ip->curx, 1, n);
1104     }
1105   while (n--)
1106     SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1107   SUBR_CURSOR(ip, DRAW_CURSOR);
1108 }
1109 
1110 inline static void
1111 ite_clrtoeol(struct ite_softc *ip)
1112 {
1113   int y = ip->cury, x = ip->curx;
1114   if (ip->cols - x > 0)
1115     {
1116       SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1117       attrclr(ip, y, x, 1, ip->cols - x);
1118       SUBR_CURSOR(ip, DRAW_CURSOR);
1119     }
1120 }
1121 
1122 inline static void
1123 ite_clrtobol(struct ite_softc *ip)
1124 {
1125   int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1126   SUBR_CLEAR(ip, y, 0, 1, x);
1127   attrclr(ip, y, 0, 1, x);
1128   SUBR_CURSOR(ip, DRAW_CURSOR);
1129 }
1130 
1131 inline static void
1132 ite_clrline(struct ite_softc *ip)
1133 {
1134   int y = ip->cury;
1135   SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1136   attrclr(ip, y, 0, 1, ip->cols);
1137   SUBR_CURSOR(ip, DRAW_CURSOR);
1138 }
1139 
1140 
1141 
1142 inline static void
1143 ite_clrtoeos(struct ite_softc *ip)
1144 {
1145   ite_clrtoeol(ip);
1146   if (ip->cury < ip->rows - 1)
1147     {
1148       SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1149       attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1150       SUBR_CURSOR(ip, DRAW_CURSOR);
1151     }
1152 }
1153 
1154 inline static void
1155 ite_clrtobos(struct ite_softc *ip)
1156 {
1157   ite_clrtobol(ip);
1158   if (ip->cury > 0)
1159     {
1160       SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1161       attrclr(ip, 0, 0, ip->cury, ip->cols);
1162       SUBR_CURSOR(ip, DRAW_CURSOR);
1163     }
1164 }
1165 
1166 inline static void
1167 ite_clrscreen(struct ite_softc *ip)
1168 {
1169   SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1170   attrclr(ip, 0, 0, ip->rows, ip->cols);
1171   SUBR_CURSOR(ip, DRAW_CURSOR);
1172 }
1173 
1174 
1175 
1176 inline static void
1177 ite_dnline(struct ite_softc *ip, int n)
1178 {
1179   /* interesting.. if the cursor is outside the scrolling
1180      region, this command is simply ignored.. */
1181   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1182     return;
1183 
1184   n = min(n, ip->bottom_margin + 1 - ip->cury);
1185   if (n <= ip->bottom_margin - ip->cury)
1186     {
1187       SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1188       attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1189 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1190     }
1191   SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1192   attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1193   SUBR_CURSOR(ip, DRAW_CURSOR);
1194 }
1195 
1196 inline static void
1197 ite_inline(struct ite_softc *ip, int n)
1198 {
1199   /* interesting.. if the cursor is outside the scrolling
1200      region, this command is simply ignored.. */
1201   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1202     return;
1203 
1204   n = min(n, ip->bottom_margin + 1 - ip->cury);
1205   if (n <= ip->bottom_margin - ip->cury)
1206     {
1207       SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1208       attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1209 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1210     }
1211   SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1212   attrclr(ip, ip->cury, 0, n, ip->cols);
1213   SUBR_CURSOR(ip, DRAW_CURSOR);
1214 }
1215 
1216 inline static void
1217 ite_lf(struct ite_softc *ip)
1218 {
1219   ++ip->cury;
1220   if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows))
1221     {
1222       ip->cury--;
1223       SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1224       ite_clrline(ip);
1225     }
1226   SUBR_CURSOR(ip, MOVE_CURSOR);
1227   clr_attr(ip, ATTR_INV);
1228 }
1229 
1230 inline static void
1231 ite_crlf(struct ite_softc *ip)
1232 {
1233   ip->curx = 0;
1234   ite_lf (ip);
1235 }
1236 
1237 inline static void
1238 ite_cr(struct ite_softc *ip)
1239 {
1240   if (ip->curx)
1241     {
1242       ip->curx = 0;
1243       SUBR_CURSOR(ip, MOVE_CURSOR);
1244     }
1245 }
1246 
1247 inline static void
1248 ite_rlf(struct ite_softc *ip)
1249 {
1250   ip->cury--;
1251   if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1))
1252     {
1253       ip->cury++;
1254       SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1255       ite_clrline(ip);
1256     }
1257   SUBR_CURSOR(ip, MOVE_CURSOR);
1258   clr_attr(ip, ATTR_INV);
1259 }
1260 
1261 inline static int
1262 atoi(const char *cp)
1263 {
1264   int n;
1265 
1266   for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1267     n = n * 10 + *cp - '0';
1268 
1269   return n;
1270 }
1271 
1272 inline static int
1273 ite_argnum(struct ite_softc *ip)
1274 {
1275   char ch;
1276   int n;
1277 
1278   /* convert argument string into number */
1279   if (ip->ap == ip->argbuf)
1280     return 1;
1281   ch = *ip->ap;
1282   *ip->ap = 0;
1283   n = atoi (ip->argbuf);
1284   *ip->ap = ch;
1285 
1286   return n;
1287 }
1288 
1289 inline static int
1290 ite_zargnum(struct ite_softc *ip)
1291 {
1292   char ch;
1293   int n;
1294 
1295   /* convert argument string into number */
1296   if (ip->ap == ip->argbuf)
1297     return 0;
1298   ch = *ip->ap;
1299   *ip->ap = 0;
1300   n = atoi (ip->argbuf);
1301   *ip->ap = ch;
1302 
1303   return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1304 }
1305 
1306 void
1307 ite_putstr(const char *s, int len, dev_t dev)
1308 {
1309 	struct ite_softc *ip;
1310 	int i;
1311 
1312 	ip = getitesp(dev);
1313 
1314 	/* XXX avoid problems */
1315 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1316 	  	return;
1317 
1318 	SUBR_CURSOR(ip, START_CURSOROPT);
1319 	for (i = 0; i < len; i++)
1320 		if (s[i])
1321 			iteputchar(s[i], ip);
1322 	SUBR_CURSOR(ip, END_CURSOROPT);
1323 }
1324 
1325 static void
1326 iteprecheckwrap(struct ite_softc *ip)
1327 {
1328 	if (ip->auto_wrap && ip->curx == ip->cols) {
1329 		ip->curx = 0;
1330 		clr_attr(ip, ATTR_INV);
1331 		if (++ip->cury >= ip->bottom_margin + 1) {
1332 			ip->cury = ip->bottom_margin;
1333 			SUBR_CURSOR(ip, MOVE_CURSOR);
1334 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1335 			ite_clrtoeol(ip);
1336 		} else
1337 			SUBR_CURSOR(ip, MOVE_CURSOR);
1338 	}
1339 }
1340 
1341 static void
1342 itecheckwrap(struct ite_softc *ip)
1343 {
1344 #if 0
1345 	if (++ip->curx == ip->cols) {
1346 		if (ip->auto_wrap) {
1347 			ip->curx = 0;
1348 			clr_attr(ip, ATTR_INV);
1349 			if (++ip->cury >= ip->bottom_margin + 1) {
1350 				ip->cury = ip->bottom_margin;
1351 				SUBR_CURSOR(ip, MOVE_CURSOR);
1352 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1353 				ite_clrtoeol(ip);
1354 				return;
1355 			}
1356 		} else
1357 			/* stay there if no autowrap.. */
1358 			ip->curx--;
1359 	}
1360 #else
1361 	if (ip->curx < ip->cols) {
1362 		ip->curx++;
1363 		SUBR_CURSOR(ip, MOVE_CURSOR);
1364 	}
1365 #endif
1366 }
1367 
1368 void
1369 iteputchar(register int c, struct ite_softc *ip)
1370 {
1371 	struct tty *kbd_tty;
1372 	int n, x, y;
1373 	char *cp;
1374 
1375 	if (kbd_ite == NULL)
1376 		kbd_tty = NULL;
1377 	else
1378 		kbd_tty = kbd_ite->tp;
1379 
1380 	if (ip->escape) {
1381 		switch (ip->escape) {
1382 		case ESC:
1383 			switch (c) {
1384 				/*
1385 				 * first 7bit equivalents for the
1386 				 * 8bit control characters
1387 				 */
1388 			case 'D':
1389 				c = IND;
1390 				ip->escape = 0;
1391 				break;
1392 				/*
1393 				 * and fall into the next
1394 				 * switch below (same for all `break')
1395 				 */
1396 			case 'E':
1397 				c = NEL;
1398 				ip->escape = 0;
1399 				break;
1400 			case 'H':
1401 				c = HTS;
1402 				ip->escape = 0;
1403 				break;
1404 			case 'M':
1405 				c = RI;
1406 				ip->escape = 0;
1407 				break;
1408 			case 'N':
1409 				c = SS2;
1410 				ip->escape = 0;
1411 				break;
1412 			case 'O':
1413 				c = SS3;
1414 				ip->escape = 0;
1415 				break;
1416 			case 'P':
1417 				c = DCS;
1418 				ip->escape = 0;
1419 				break;
1420 			case '[':
1421 				c = CSI;
1422 				ip->escape = 0;
1423 				break;
1424 			case '\\':
1425 				c = ST;
1426 				ip->escape = 0;
1427 				break;
1428 			case ']':
1429 				c = OSC;
1430 				ip->escape = 0;
1431 				break;
1432 			case '^':
1433 				c = PM;
1434 				ip->escape = 0;
1435 				break;
1436 			case '_':
1437 				c = APC;
1438 				ip->escape = 0;
1439 				break;
1440 				/* introduces 7/8bit control */
1441 			case ' ':
1442 				/* can be followed by either F or G */
1443 				ip->escape = ' ';
1444 				break;
1445 			/*
1446 			 * a lot of character set selections, not yet
1447 			 * used... 94-character sets:
1448 			 */
1449 			case '(':	/* G0 */
1450 			case ')':	/* G1 */
1451 				ip->escape = c;
1452 				return;
1453 			case '*':	/* G2 */
1454 			case '+':	/* G3 */
1455 			case 'B':	/* ASCII */
1456 			case 'A':	/* ISO latin 1 */
1457 			case '<':	/* user preferred suplemental */
1458 			case '0':	/* dec special graphics */
1459 			/*
1460 			 * 96-character sets:
1461 			 */
1462 			case '-':	/* G1 */
1463 			case '.':	/* G2 */
1464 			case '/':	/* G3 */
1465 			/*
1466 			 * national character sets:
1467 			 */
1468 			case '4':	/* dutch */
1469 			case '5':
1470 			case 'C':	/* finnish */
1471 			case 'R':	/* french */
1472 			case 'Q':	/* french canadian */
1473 			case 'K':	/* german */
1474 			case 'Y':	/* italian */
1475 			case '6':	/* norwegian/danish */
1476 				/*
1477 				 * note: %5 and %6 are not supported (two
1478 				 * chars..)
1479 				 */
1480 				ip->escape = 0;
1481 				/* just ignore for now */
1482 				return;
1483 			/*
1484 			 * locking shift modes (as you might guess, not
1485 			 * yet supported..)
1486 			 */
1487 			case '`':
1488 				ip->GR = ip->G1;
1489 				ip->escape = 0;
1490 				return;
1491 			case 'n':
1492 				ip->GL = ip->G2;
1493 				ip->escape = 0;
1494 				return;
1495 			case '}':
1496 				ip->GR = ip->G2;
1497 				ip->escape = 0;
1498 				return;
1499 			case 'o':
1500 				ip->GL = ip->G3;
1501 				ip->escape = 0;
1502 				return;
1503 			case '|':
1504 				ip->GR = ip->G3;
1505 				ip->escape = 0;
1506 				return;
1507 			case '#':
1508 				/* font width/height control */
1509 				ip->escape = '#';
1510 				return;
1511 			case 'c':
1512 				/* hard terminal reset .. */
1513 				ite_reset(ip);
1514 				SUBR_CURSOR(ip, MOVE_CURSOR);
1515 				ip->escape = 0;
1516 				return;
1517 			case '7':
1518 				ip->save_curx = ip->curx;
1519 				ip->save_cury = ip->cury;
1520 				ip->save_attribute = ip->attribute;
1521 				ip->escape = 0;
1522 				return;
1523 			case '8':
1524 				ip->curx = ip->save_curx;
1525 				ip->cury = ip->save_cury;
1526 				ip->attribute = ip->save_attribute;
1527 				SUBR_CURSOR(ip, MOVE_CURSOR);
1528 				ip->escape = 0;
1529 				return;
1530 			case '=':
1531 				ip->keypad_appmode = 1;
1532 				ip->escape = 0;
1533 				return;
1534 			case '>':
1535 				ip->keypad_appmode = 0;
1536 				ip->escape = 0;
1537 				return;
1538 			case 'Z':	/* request ID */
1539 				/* XXX not clean */
1540 				if (ip->emul_level == EMUL_VT100)
1541 					ite_sendstr("\033[?61;0c");
1542 				else
1543 					ite_sendstr("\033[?63;0c");
1544 				ip->escape = 0;
1545 				return;
1546 			default:
1547 				/*
1548 				 * default catch all for not recognized ESC
1549 				 * sequences
1550 				 */
1551 				ip->escape = 0;
1552 				return;
1553 			}
1554 			break;
1555 		case '(':
1556 		case ')':
1557 			ip->escape = 0;
1558 			return;
1559 		case ' ':
1560 			switch (c) {
1561 			case 'F':
1562 				ip->eightbit_C1 = 0;
1563 				ip->escape = 0;
1564 				return;
1565 			case 'G':
1566 				ip->eightbit_C1 = 1;
1567 				ip->escape = 0;
1568 				return;
1569 			default:
1570 				/* not supported */
1571 				ip->escape = 0;
1572 				return;
1573 			}
1574 			break;
1575 		case '#':
1576 			switch (c) {
1577 			case '5':
1578 				/* single height, single width */
1579 				ip->escape = 0;
1580 				return;
1581 			case '6':
1582 				/* double width, single height */
1583 				ip->escape = 0;
1584 				return;
1585 			case '3':
1586 				/* top half */
1587 				ip->escape = 0;
1588 				return;
1589 			case '4':
1590 				/* bottom half */
1591 				ip->escape = 0;
1592 				return;
1593 			case '8':
1594 				/* screen alignment pattern... */
1595 				alignment_display(ip);
1596 				ip->escape = 0;
1597 				return;
1598 			default:
1599 				ip->escape = 0;
1600 				return;
1601 			}
1602 			break;
1603 		case CSI:
1604 			/* the biggie... */
1605 			switch (c) {
1606 			case '0':
1607 			case '1':
1608 			case '2':
1609 			case '3':
1610 			case '4':
1611 			case '5':
1612 			case '6':
1613 			case '7':
1614 			case '8':
1615 			case '9':
1616 			case ';':
1617 			case '\"':
1618 			case '$':
1619 			case '>':
1620 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1621 					*ip->ap++ = c;
1622 				return;
1623 			case BS:
1624 				/*
1625 				 * you wouldn't believe such perversion is
1626 				 * possible? it is.. BS is allowed in between
1627 				 * cursor sequences (at least), according to
1628 				 * vttest..
1629 				 */
1630 				if (--ip->curx < 0)
1631 					ip->curx = 0;
1632 				else
1633 					SUBR_CURSOR(ip, MOVE_CURSOR);
1634 				break;
1635 			case 'p':
1636 				*ip->ap = 0;
1637 				if (!strncmp(ip->argbuf, "61\"", 3))
1638 					ip->emul_level = EMUL_VT100;
1639 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1640 				    || !strncmp(ip->argbuf, "62;1\"", 5))
1641 					ip->emul_level = EMUL_VT300_7;
1642 				else
1643 					ip->emul_level = EMUL_VT300_8;
1644 				ip->escape = 0;
1645 				return;
1646 			case '?':
1647 				*ip->ap = 0;
1648 				ip->escape = '?';
1649 				ip->ap = ip->argbuf;
1650 				return;
1651 			case 'c':
1652 				*ip->ap = 0;
1653 				if (ip->argbuf[0] == '>') {
1654 					ite_sendstr("\033[>24;0;0;0c");
1655 				} else
1656 					switch (ite_zargnum(ip)) {
1657 					case 0:
1658 						/*
1659 						 * primary DA request, send
1660 						 * primary DA response
1661 						 */
1662 						if (ip->emul_level
1663 						    == EMUL_VT100)
1664 							ite_sendstr(
1665 							    "\033[?1;1c");
1666 						else
1667 							ite_sendstr(
1668 							    "\033[?63;1c");
1669 						break;
1670 					}
1671 				ip->escape = 0;
1672 				return;
1673 			case 'n':
1674 				switch (ite_zargnum(ip)) {
1675 				case 5:
1676 					/* no malfunction */
1677 					ite_sendstr("\033[0n");
1678 					break;
1679 				case 6:
1680 					/* cursor position report */
1681 					sprintf(ip->argbuf, "\033[%d;%dR",
1682 					    ip->cury + 1, ip->curx + 1);
1683 					ite_sendstr(ip->argbuf);
1684 					break;
1685 				}
1686 				ip->escape = 0;
1687 				return;
1688 			case 'x':
1689 				switch (ite_zargnum(ip)) {
1690 				case 0:
1691 					/* Fake some terminal parameters.  */
1692 					ite_sendstr("\033[2;1;1;112;112;1;0x");
1693 					break;
1694 				case 1:
1695 					ite_sendstr("\033[3;1;1;112;112;1;0x");
1696 					break;
1697 				}
1698 				ip->escape = 0;
1699 				return;
1700 			case 'g':
1701 				switch (ite_zargnum(ip)) {
1702 				case 0:
1703 					if (ip->curx < ip->cols)
1704 						ip->tabs[ip->curx] = 0;
1705 					break;
1706 				case 3:
1707 					for (n = 0; n < ip->cols; n++)
1708 						ip->tabs[n] = 0;
1709 					break;
1710 				}
1711 				ip->escape = 0;
1712 				return;
1713 			case 'h':
1714 			case 'l':
1715 				n = ite_zargnum(ip);
1716 				switch (n) {
1717 				case 4:
1718 					/* insert/replace mode */
1719 					ip->imode = (c == 'h');
1720 					break;
1721 				case 20:
1722 					ip->linefeed_newline = (c == 'h');
1723 					break;
1724 				}
1725 				ip->escape = 0;
1726 				return;
1727 			case 'M':
1728 				ite_dnline(ip, ite_argnum(ip));
1729 				ip->escape = 0;
1730 				return;
1731 			case 'L':
1732 				ite_inline(ip, ite_argnum(ip));
1733 				ip->escape = 0;
1734 				return;
1735 			case 'P':
1736 				ite_dnchar(ip, ite_argnum(ip));
1737 				ip->escape = 0;
1738 				return;
1739 			case '@':
1740 				ite_inchar(ip, ite_argnum(ip));
1741 				ip->escape = 0;
1742 				return;
1743 			case 'G':
1744 				/*
1745 				 * this one was *not* in my vt320 manual but in
1746 				 * a vt320 termcap entry.. who is right? It's
1747 				 * supposed to set the horizontal cursor
1748 				 * position.
1749 				 */
1750 				*ip->ap = 0;
1751 				x = atoi(ip->argbuf);
1752 				if (x)
1753 					x--;
1754 				ip->curx = min(x, ip->cols - 1);
1755 				ip->escape = 0;
1756 				SUBR_CURSOR(ip, MOVE_CURSOR);
1757 				clr_attr(ip, ATTR_INV);
1758 				return;
1759 			case 'd':
1760 				/*
1761 				 * same thing here, this one's for setting the
1762 				 * absolute vertical cursor position. Not
1763 				 * documented...
1764 				 */
1765 				*ip->ap = 0;
1766 				y = atoi(ip->argbuf);
1767 				if (y)
1768 					y--;
1769 				if (ip->inside_margins)
1770 					y += ip->top_margin;
1771 				ip->cury = min(y, ip->rows - 1);
1772 				ip->escape = 0;
1773 				snap_cury(ip);
1774 				SUBR_CURSOR(ip, MOVE_CURSOR);
1775 				clr_attr(ip, ATTR_INV);
1776 				return;
1777 			case 'H':
1778 			case 'f':
1779 				*ip->ap = 0;
1780 				y = atoi(ip->argbuf);
1781 				x = 0;
1782 				cp = strchr(ip->argbuf, ';');
1783 				if (cp)
1784 					x = atoi(cp + 1);
1785 				if (x)
1786 					x--;
1787 				if (y)
1788 					y--;
1789 				if (ip->inside_margins)
1790 					y += ip->top_margin;
1791 				ip->cury = min(y, ip->rows - 1);
1792 				ip->curx = min(x, ip->cols - 1);
1793 				ip->escape = 0;
1794 				snap_cury(ip);
1795 				SUBR_CURSOR(ip, MOVE_CURSOR);
1796 				clr_attr(ip, ATTR_INV);
1797 				return;
1798 			case 'A':
1799 				n = ite_argnum(ip);
1800 				n = ip->cury - (n ? n : 1);
1801 				if (n < 0)
1802 					n = 0;
1803 				if (ip->inside_margins)
1804 					n = max(ip->top_margin, n);
1805 				else if (n == ip->top_margin - 1)
1806 					/*
1807 					 * allow scrolling outside region, but
1808 					 * don't scroll out of active region
1809 					 * without explicit CUP
1810 					 */
1811 					n = ip->top_margin;
1812 				ip->cury = n;
1813 				ip->escape = 0;
1814 				SUBR_CURSOR(ip, MOVE_CURSOR);
1815 				clr_attr(ip, ATTR_INV);
1816 				return;
1817 			case 'B':
1818 				n = ite_argnum(ip);
1819 				n = ip->cury + (n ? n : 1);
1820 				n = min(ip->rows - 1, n);
1821 				if (ip->inside_margins)
1822 					n = min(ip->bottom_margin, n);
1823 				else if (n == ip->bottom_margin + 1)
1824 					/*
1825 					 * allow scrolling outside region, but
1826 					 * don't scroll out of active region
1827 					 * without explicit CUP
1828 					 */
1829 					n = ip->bottom_margin;
1830 				ip->cury = n;
1831 				ip->escape = 0;
1832 				SUBR_CURSOR(ip, MOVE_CURSOR);
1833 				clr_attr(ip, ATTR_INV);
1834 				return;
1835 			case 'C':
1836 				n = ite_argnum(ip);
1837 				n = n ? n : 1;
1838 				ip->curx = min(ip->curx + n, ip->cols - 1);
1839 				ip->escape = 0;
1840 				SUBR_CURSOR(ip, MOVE_CURSOR);
1841 				clr_attr(ip, ATTR_INV);
1842 				return;
1843 			case 'D':
1844 				n = ite_argnum(ip);
1845 				n = n ? n : 1;
1846 				n = ip->curx - n;
1847 				ip->curx = n >= 0 ? n : 0;
1848 				ip->escape = 0;
1849 				SUBR_CURSOR(ip, MOVE_CURSOR);
1850 				clr_attr(ip, ATTR_INV);
1851 				return;
1852 			case 'J':
1853 				*ip->ap = 0;
1854 				n = ite_zargnum(ip);
1855 				if (n == 0)
1856 					ite_clrtoeos(ip);
1857 				else if (n == 1)
1858 					ite_clrtobos(ip);
1859 				else if (n == 2)
1860 					ite_clrscreen(ip);
1861 				ip->escape = 0;
1862 				return;
1863 			case 'K':
1864 				n = ite_zargnum(ip);
1865 				if (n == 0)
1866 					ite_clrtoeol(ip);
1867 				else if (n == 1)
1868 					ite_clrtobol(ip);
1869 				else if (n == 2)
1870 					ite_clrline(ip);
1871 				ip->escape = 0;
1872 				return;
1873 			case 'X':
1874 				n = ite_argnum(ip) - 1;
1875 				n = min(n, ip->cols - 1 - ip->curx);
1876 				for (; n >= 0; n--) {
1877 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1878 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1879 				}
1880 				ip->escape = 0;
1881 				return;
1882 			case '}':
1883 			case '`':
1884 				/* status line control */
1885 				ip->escape = 0;
1886 				return;
1887 			case 'r':
1888 				*ip->ap = 0;
1889 				x = atoi(ip->argbuf);
1890 				x = x ? x : 1;
1891 				y = ip->rows;
1892 				cp = strchr(ip->argbuf, ';');
1893 				if (cp) {
1894 					y = atoi(cp + 1);
1895 					y = y ? y : ip->rows;
1896 				}
1897 				if (y - x < 2) {
1898 					/*
1899 					 * if illegal scrolling region, reset
1900 					 * to defaults
1901 					 */
1902 					x = 1;
1903 					y = ip->rows;
1904 				}
1905 				x--;
1906 				y--;
1907 				ip->top_margin = min(x, ip->rows - 1);
1908 				ip->bottom_margin = min(y, ip->rows - 1);
1909 				if (ip->inside_margins) {
1910 					ip->cury = ip->top_margin;
1911 					ip->curx = 0;
1912 					SUBR_CURSOR(ip, MOVE_CURSOR);
1913 				}
1914 				ip->escape = 0;
1915 				return;
1916 			case 'm':
1917 				/* big attribute setter/resetter */
1918 				{ char *_cp;
1919 				*ip->ap = 0;
1920 				/* kludge to make CSIm work (== CSI0m) */
1921 				if (ip->ap == ip->argbuf)
1922 					ip->ap++;
1923 				for (_cp = ip->argbuf; _cp < ip->ap;) {
1924 					switch (*_cp) {
1925 					case 0:
1926 					case '0':
1927 						clr_attr(ip, ATTR_ALL);
1928 						_cp++;
1929 						break;
1930 
1931 					case '1':
1932 						set_attr(ip, ATTR_BOLD);
1933 						_cp++;
1934 						break;
1935 
1936 					case '2':
1937 						switch (_cp[1]) {
1938 						case '2':
1939 							clr_attr(ip, ATTR_BOLD);
1940 							_cp += 2;
1941 							break;
1942 
1943 						case '4':
1944 							clr_attr(ip, ATTR_UL);
1945 							_cp += 2;
1946 							break;
1947 
1948 						case '5':
1949 							clr_attr(ip, ATTR_BLINK);
1950 							_cp += 2;
1951 							break;
1952 
1953 						case '7':
1954 							clr_attr(ip, ATTR_INV);
1955 							_cp += 2;
1956 							break;
1957 
1958 						default:
1959 							_cp++;
1960 							break;
1961 						}
1962 						break;
1963 
1964 					case '4':
1965 						set_attr(ip, ATTR_UL);
1966 						_cp++;
1967 						break;
1968 
1969 					case '5':
1970 						set_attr(ip, ATTR_BLINK);
1971 						_cp++;
1972 						break;
1973 
1974 					case '7':
1975 						set_attr(ip, ATTR_INV);
1976 						_cp++;
1977 						break;
1978 
1979 					default:
1980 						_cp++;
1981 						break;
1982 					}
1983 				}
1984 				ip->escape = 0;
1985 				return; }
1986 			case 'u':
1987 				/* DECRQTSR */
1988 				ite_sendstr("\033P\033\\");
1989 				ip->escape = 0;
1990 				return;
1991 			default:
1992 				ip->escape = 0;
1993 				return;
1994 			}
1995 			break;
1996 		case '?':	/* CSI ? */
1997 			switch (c) {
1998 			case '0':
1999 			case '1':
2000 			case '2':
2001 			case '3':
2002 			case '4':
2003 			case '5':
2004 			case '6':
2005 			case '7':
2006 			case '8':
2007 			case '9':
2008 			case ';':
2009 			case '\"':
2010 			case '$':
2011 				/*
2012 				 * Don't fill the last character;
2013 				 * it's needed.
2014 				 * XXX yeah, where ??
2015 				 */
2016 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2017 					*ip->ap++ = c;
2018 				return;
2019 			case 'n':
2020 				*ip->ap = 0;
2021 				if (ip->ap == &ip->argbuf[2]) {
2022 					if (!strncmp(ip->argbuf, "15", 2))
2023 						/* printer status: no printer */
2024 						ite_sendstr("\033[13n");
2025 
2026 					else if (!strncmp(ip->argbuf, "25", 2))
2027 						/* udk status */
2028 						ite_sendstr("\033[20n");
2029 
2030 					else if (!strncmp(ip->argbuf, "26", 2))
2031 						/* keyboard dialect: US */
2032 						ite_sendstr("\033[27;1n");
2033 				}
2034 				ip->escape = 0;
2035 				return;
2036 			case 'h':
2037 			case 'l':
2038 				n = ite_zargnum(ip);
2039 				switch (n) {
2040 				case 1:
2041 					ip->cursor_appmode = (c == 'h');
2042 					break;
2043 				case 3:
2044 					/* 132/80 columns (132 == 'h') */
2045 					break;
2046 				case 4:	/* smooth scroll */
2047 					break;
2048 				case 5:
2049 					/*
2050 					 * light background (=='h') /dark
2051 					 * background(=='l')
2052 					 */
2053 					break;
2054 				case 6:	/* origin mode */
2055 					ip->inside_margins = (c == 'h');
2056 					ip->curx = 0;
2057 					ip->cury = ip->inside_margins ?
2058 					    ip->top_margin : 0;
2059 					SUBR_CURSOR(ip, MOVE_CURSOR);
2060 					break;
2061 				case 7:	/* auto wraparound */
2062 					ip->auto_wrap = (c == 'h');
2063 					break;
2064 				case 8:	/* keyboard repeat */
2065 					ip->key_repeat = (c == 'h');
2066 					break;
2067 				case 20:	/* newline mode */
2068 					ip->linefeed_newline = (c == 'h');
2069 					break;
2070 				case 25:	/* cursor on/off */
2071 					SUBR_CURSOR(ip, (c == 'h') ?
2072 					    DRAW_CURSOR : ERASE_CURSOR);
2073 					break;
2074 				}
2075 				ip->escape = 0;
2076 				return;
2077 			default:
2078 				ip->escape = 0;
2079 				return;
2080 			}
2081 			break;
2082 		default:
2083 			ip->escape = 0;
2084 			return;
2085 		}
2086 	}
2087 	switch (c) {
2088 	case VT:		/* VT is treated like LF */
2089 	case FF:		/* so is FF */
2090 	case LF:
2091 		/*
2092 		 * cr->crlf distinction is done here, on output, not on input!
2093 		 */
2094 		if (ip->linefeed_newline)
2095 			ite_crlf(ip);
2096 		else
2097 			ite_lf(ip);
2098 		break;
2099 	case CR:
2100 		ite_cr(ip);
2101 		break;
2102 	case BS:
2103 		if (--ip->curx < 0)
2104 			ip->curx = 0;
2105 		else
2106 			SUBR_CURSOR(ip, MOVE_CURSOR);
2107 		break;
2108 	case HT:
2109 		for (n = ip->curx + 1; n < ip->cols; n++) {
2110 			if (ip->tabs[n]) {
2111 				ip->curx = n;
2112 				SUBR_CURSOR(ip, MOVE_CURSOR);
2113 				break;
2114 			}
2115 		}
2116 		break;
2117 	case BEL:
2118 		if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty
2119 #ifdef DRACO
2120 		    && !is_draco()
2121 #endif
2122 		    )
2123 			ite_bell();
2124 		break;
2125 	case SO:
2126 		ip->GL = ip->G1;
2127 		break;
2128 	case SI:
2129 		ip->GL = ip->G0;
2130 		break;
2131 	case ENQ:
2132 		/* send answer-back message !! */
2133 		break;
2134 	case CAN:
2135 		ip->escape = 0;	/* cancel any escape sequence in progress */
2136 		break;
2137 	case SUB:
2138 		ip->escape = 0;	/* dito, but see below */
2139 		/* should also display a reverse question mark!! */
2140 		break;
2141 	case ESC:
2142 		ip->escape = ESC;
2143 		break;
2144 	/*
2145 	 * now it gets weird.. 8bit control sequences..
2146 	 */
2147 	case IND:
2148 		/* index: move cursor down, scroll */
2149 		ite_lf(ip);
2150 		break;
2151 	case NEL:
2152 		/* next line. next line, first pos. */
2153 		ite_crlf(ip);
2154 		break;
2155 	case HTS:
2156 		/* set horizontal tab */
2157 		if (ip->curx < ip->cols)
2158 			ip->tabs[ip->curx] = 1;
2159 		break;
2160 	case RI:
2161 		/* reverse index */
2162 		ite_rlf(ip);
2163 		break;
2164 	case SS2:
2165 		/* go into G2 for one character */
2166 		/* not yet supported */
2167 		break;
2168 	case SS3:
2169 		/* go into G3 for one character */
2170 		break;
2171 	case DCS:
2172 		/* device control string introducer */
2173 		ip->escape = DCS;
2174 		ip->ap = ip->argbuf;
2175 		break;
2176 	case CSI:
2177 		/* control sequence introducer */
2178 		ip->escape = CSI;
2179 		ip->ap = ip->argbuf;
2180 		break;
2181 	case ST:
2182 		/* string terminator */
2183 		/* ignore, if not used as terminator */
2184 		break;
2185 	case OSC:
2186 		/*
2187 		 * introduces OS command. Ignore everything
2188 		 * upto ST
2189 		 */
2190 		ip->escape = OSC;
2191 		break;
2192 	case PM:
2193 		/* privacy message, ignore everything upto ST */
2194 		ip->escape = PM;
2195 		break;
2196 	case APC:
2197 		/*
2198 		 * application program command, ignore * everything upto ST
2199 		 */
2200 		ip->escape = APC;
2201 		break;
2202 	default:
2203 		if ((c & 0x7f) < ' ' || c == DEL)
2204 			break;
2205 		if (ip->imode)
2206 			ite_inchar(ip, 1);
2207 		iteprecheckwrap(ip);
2208 #ifdef DO_WEIRD_ATTRIBUTES
2209 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2210 			attrset(ip, ATTR_INV);
2211 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2212 		} else
2213 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2214 #else
2215 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2216 #endif
2217 		SUBR_CURSOR(ip, DRAW_CURSOR);
2218 		itecheckwrap(ip);
2219 		break;
2220 	}
2221 }
2222 
2223