xref: /netbsd-src/sys/arch/amiga/dev/ite.c (revision f876c1012ec8280866d3287842a50de849d25967)
1 /*	$NetBSD: ite.c,v 1.69 2005/03/02 08:14:26 chs 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 1.69 2005/03/02 08:14:26 chs 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 <amiga/amiga/cc.h>
101 #include <amiga/amiga/color.h>	/* DEBUG */
102 #include <amiga/amiga/custom.h>	/* DEBUG */
103 #include <amiga/amiga/device.h>
104 #if defined(__m68k__)
105 #include <amiga/amiga/isr.h>
106 #endif
107 #include <amiga/dev/iteioctl.h>
108 #include <amiga/dev/itevar.h>
109 #include <amiga/dev/kbdmap.h>
110 #include <amiga/dev/grfioctl.h>
111 #include <amiga/dev/grfvar.h>
112 
113 #include <machine/cpu.h>	/* for is_draco() */
114 
115 #include <sys/conf.h>
116 
117 #include "grfcc.h"
118 #include "ite.h"
119 
120 /*
121  * XXX go ask sys/kern/tty.c:ttselect()
122  */
123 
124 #define ITEUNIT(dev)	(minor(dev))
125 
126 #define SUBR_INIT(ip)		(ip)->grf->g_iteinit(ip)
127 #define SUBR_DEINIT(ip)		(ip)->grf->g_itedeinit(ip)
128 #define SUBR_PUTC(ip,c,dy,dx,m)	(ip)->grf->g_iteputc(ip,c,dy,dx,m)
129 #define SUBR_CURSOR(ip,flg)	(ip)->grf->g_itecursor(ip,flg)
130 #define SUBR_CLEAR(ip,sy,sx,h,w)	(ip)->grf->g_iteclear(ip,sy,sx,h,w)
131 #define SUBR_SCROLL(ip,sy,sx,count,dir)	\
132     (ip)->grf->g_itescroll(ip,sy,sx,count,dir)
133 
134 int	start_repeat_timeo = 30;	/* first repeat after x s/100 */
135 int	next_repeat_timeo = 10;		/* next repeat after x s/100 */
136 
137 int	ite_default_wrap = 1;		/* you want vtxxx-nam, binpatch */
138 
139 struct	ite_softc con_itesoftc;
140 u_char	cons_tabs[MAX_TABS];
141 
142 struct ite_softc *kbd_ite;
143 
144 /* audio bell stuff */
145 u_int bvolume = 10;
146 u_int bpitch = 660;
147 u_int bmsec = 75;
148 
149 static char *bsamplep;
150 static char sample[20] = {
151 	0,39,75,103,121,127,121,103,75,39,0,
152 	-39,-75,-103,-121,-127,-121,-103,-75,-39
153 };
154 
155 void iteputchar(int c, struct ite_softc *ip);
156 void ite_putstr(const char * s, int len, dev_t dev);
157 void iteattach(struct device *, struct device *, void *);
158 int itematch(struct device *, struct cfdata *, void *);
159 static void iteprecheckwrap(struct ite_softc *);
160 static void itecheckwrap(struct ite_softc *);
161 struct ite_softc *getitesp(dev_t);
162 void init_bell(void);
163 void ite_bell(void);
164 void itecnpollc(dev_t, int);
165 static void repeat_handler(void *);
166 inline static void ite_sendstr(char *);
167 static void alignment_display(struct ite_softc *);
168 inline static void snap_cury(struct ite_softc *);
169 inline static void ite_dnchar(struct ite_softc *, int);
170 inline static void ite_inchar(struct ite_softc *, int);
171 inline static void ite_clrtoeol(struct ite_softc *);
172 inline static void ite_clrtobol(struct ite_softc *);
173 inline static void ite_clrline(struct ite_softc *);
174 inline static void ite_clrtoeos(struct ite_softc *);
175 inline static void ite_clrtobos(struct ite_softc *);
176 inline static void ite_clrscreen(struct ite_softc *);
177 inline static void ite_dnline(struct ite_softc *, int);
178 inline static void ite_inline(struct ite_softc *, int);
179 inline static void ite_lf(struct ite_softc *);
180 inline static void ite_crlf(struct ite_softc *);
181 inline static void ite_cr(struct ite_softc *);
182 inline static void ite_rlf(struct ite_softc *);
183 inline static int atoi(const char *);
184 inline static int ite_argnum(struct ite_softc *);
185 inline static int ite_zargnum(struct ite_softc *);
186 
187 CFATTACH_DECL(ite, sizeof(struct ite_softc),
188     itematch, iteattach, NULL, NULL);
189 
190 extern struct cfdriver ite_cd;
191 
192 dev_type_open(iteopen);
193 dev_type_close(iteclose);
194 dev_type_read(iteread);
195 dev_type_write(itewrite);
196 dev_type_ioctl(iteioctl);
197 dev_type_tty(itetty);
198 dev_type_poll(itepoll);
199 
200 const struct cdevsw ite_cdevsw = {
201 	iteopen, iteclose, iteread, itewrite, iteioctl,
202 	nostop, itetty, itepoll, nommap, ttykqfilter, D_TTY
203 };
204 
205 int
206 itematch(struct device *pdp, struct cfdata *cfp, void *auxp)
207 {
208 	struct grf_softc *gp;
209 	int maj;
210 
211 	gp = auxp;
212 
213 	/*
214 	 * XXX
215 	 * normally this would be done in attach, however
216 	 * during early init we do not have a device pointer
217 	 * and thus no unit number.
218 	 */
219 	maj = cdevsw_lookup_major(&ite_cdevsw);
220 	gp->g_itedev = makedev(maj, cfp->cf_unit);
221 	return(1);
222 }
223 
224 void
225 iteattach(struct device *pdp, struct device *dp, void *auxp)
226 {
227 	struct grf_softc *gp;
228 	struct ite_softc *ip;
229 	int s;
230 
231 	gp = (struct grf_softc *)auxp;
232 	if (dp) {
233 		ip = (struct ite_softc *)dp;
234 
235 		s = spltty();
236 		if (con_itesoftc.grf != NULL &&
237 		    con_itesoftc.grf->g_unit == gp->g_unit) {
238 			/*
239 			 * console reinit copy params over.
240 			 * and console always gets keyboard
241 			 */
242 			bcopy(&con_itesoftc.grf, &ip->grf,
243 			    (char *)&ip[1] - (char *)&ip->grf);
244 			con_itesoftc.grf = NULL;
245 			kbd_ite = ip;
246 		}
247 		ip->grf = gp;
248 		splx(s);
249 
250 		alloc_sicallback();
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(ite_cd.cd_devs[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 	bcopy(sample, bsamplep, 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 		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
430 		kbdmap_loaded = 1;
431 	}
432 
433 	ip->cursorx = 0;
434 	ip->cursory = 0;
435 	SUBR_INIT(ip);
436 	SUBR_CURSOR(ip, DRAW_CURSOR);
437 	if (ip->tabs == NULL)
438 		ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK);
439 	ite_reset(ip);
440 	ip->flags |= ITE_INITED;
441 }
442 
443 int
444 iteopen(dev_t dev, int mode, int devtype, struct proc *p)
445 {
446 	struct ite_softc *ip;
447 	struct tty *tp;
448 	int error, first, unit;
449 
450 	unit = ITEUNIT(dev);
451 	first = 0;
452 
453 	if (unit >= ite_cd.cd_ndevs)
454 		return ENXIO;
455 	ip = getitesp(dev);
456 	if (ip == NULL)
457 		return ENXIO;
458 	if ((ip->flags & ITE_ATTACHED) == 0)
459 		return ENXIO;
460 
461 	if (ip->tp == NULL) {
462 		tp = ip->tp = ttymalloc();
463 		tty_attach(tp);
464 	} else
465 		tp = ip->tp;
466 	if ((tp->t_state & (TS_ISOPEN | TS_XCLUDE)) == (TS_ISOPEN | TS_XCLUDE)
467 	    && p->p_ucred->cr_uid != 0)
468 		return (EBUSY);
469 	if ((ip->flags & ITE_ACTIVE) == 0) {
470 		ite_on(dev, 0);
471 		first = 1;
472 	}
473 	tp->t_oproc = itestart;
474 	tp->t_param = ite_param;
475 	tp->t_dev = dev;
476 	if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
477 		ttychars(tp);
478 		tp->t_iflag = TTYDEF_IFLAG;
479 		tp->t_oflag = TTYDEF_OFLAG;
480 		tp->t_cflag = TTYDEF_CFLAG;
481 		tp->t_lflag = TTYDEF_LFLAG;
482 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
483 		tp->t_state = TS_CARR_ON;
484 		ttsetwater(tp);
485 	}
486 	error = ttyopen(tp, 0, mode & O_NONBLOCK);
487 	if (error)
488 		goto bad;
489 
490 	error = tp->t_linesw->l_open(dev, tp);
491 	if (error)
492 		goto bad;
493 
494 	tp->t_winsize.ws_row = ip->rows;
495 	tp->t_winsize.ws_col = ip->cols;
496 	kbdenable();
497 	return (0);
498 bad:
499 	if (first)
500 		ite_off(dev, 0);
501 	return (error);
502 }
503 
504 int
505 iteclose(dev_t dev, int flag, int mode, struct proc *p)
506 {
507 	struct tty *tp;
508 
509 	tp = getitesp(dev)->tp;
510 
511 	KDASSERT(tp);
512 	tp->t_linesw->l_close(tp, flag);
513 	ttyclose(tp);
514 	ite_off(dev, 0);
515 	return (0);
516 }
517 
518 int
519 iteread(dev_t dev, struct uio *uio, int flag)
520 {
521 	struct tty *tp;
522 
523 	tp = getitesp(dev)->tp;
524 
525 	KDASSERT(tp);
526 	return tp->t_linesw->l_read(tp, uio, flag);
527 }
528 
529 int
530 itewrite(dev_t dev, struct uio *uio, int flag)
531 {
532 	struct tty *tp;
533 
534 	tp = getitesp(dev)->tp;
535 
536 	KDASSERT(tp);
537 	return tp->t_linesw->l_write(tp, uio, flag);
538 }
539 
540 int
541 itepoll(dev_t dev, int events, struct proc *p)
542 {
543 	struct tty *tp;
544 
545 	tp = getitesp(dev)->tp;
546 
547 	KDASSERT(tp);
548 	return ((*tp->t_linesw->l_poll)(tp, events, p));
549 }
550 
551 struct tty *
552 itetty(dev_t dev)
553 {
554 	return (getitesp(dev)->tp);
555 }
556 
557 int
558 iteioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
559 {
560 	struct iterepeat *irp;
561 	struct ite_softc *ip;
562 	struct itebell *ib;
563 	struct tty *tp;
564 	int error;
565 
566 	ip = getitesp(dev);
567 	tp = ip->tp;
568 
569 	KDASSERT(tp);
570 
571 	error = tp->t_linesw->l_ioctl(tp, cmd, addr, flag, p);
572 	if (error != EPASSTHROUGH)
573 		return (error);
574 	error = ttioctl(tp, cmd, addr, flag, p);
575 	if (error != EPASSTHROUGH)
576 		return (error);
577 
578 	switch (cmd) {
579 	case ITEIOCGBELL:
580 		ib = (struct itebell *)addr;
581 		ib->volume = bvolume;
582 		ib->pitch = bpitch;
583 		ib->msec = bmsec;
584 		return (0);
585 	case ITEIOCSBELL:
586 		ib = (struct itebell *)addr;
587 
588 		if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH ||
589 		    ib->volume > MAXBVOLUME || ib->msec > MAXBTIME)
590 			return (EINVAL);
591 		bvolume = ib->volume;
592 		bpitch = ib->pitch;
593 		bmsec = ib->msec;
594 		return (0);
595 	case ITEIOCSKMAP:
596 		if (addr == 0)
597 			return(EFAULT);
598 		bcopy(addr, &kbdmap, sizeof(struct kbdmap));
599 		return(0);
600 	case ITEIOCGKMAP:
601 		if (addr == NULL)
602 			return(EFAULT);
603 		bcopy(&kbdmap, addr, sizeof(struct kbdmap));
604 		return(0);
605 	case ITEIOCGREPT:
606 		irp = (struct iterepeat *)addr;
607 		irp->start = start_repeat_timeo;
608 		irp->next = next_repeat_timeo;
609 		return (0);
610 	case ITEIOCSREPT:
611 		irp = (struct iterepeat *)addr;
612 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
613 			return(EINVAL);
614 		start_repeat_timeo = irp->start;
615 		next_repeat_timeo = irp->next;
616 		return(0);
617 	}
618 #if NGRFCC > 0
619 	/* XXX */
620 	if (minor(dev) == 0) {
621 		error = ite_grf_ioctl(ip, cmd, addr, flag, p);
622 		if (error >= 0)
623 			return (error);
624 	}
625 #endif
626 	return (EPASSTHROUGH);
627 }
628 
629 void
630 itestart(struct tty *tp)
631 {
632 	struct clist *rbp;
633 	struct ite_softc *ip;
634 	u_char buf[ITEBURST];
635 	int s, len;
636 
637 	ip = getitesp(tp->t_dev);
638 
639 	KDASSERT(tp);
640 
641 	s = spltty(); {
642 		if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
643 			goto out;
644 
645 		tp->t_state |= TS_BUSY;
646 		rbp = &tp->t_outq;
647 
648 		len = q_to_b(rbp, buf, ITEBURST);
649 	} splx(s);
650 
651 	/* Here is a really good place to implement pre/jumpscroll() */
652 	ite_putstr(buf, len, tp->t_dev);
653 
654 	s = spltty(); {
655 		tp->t_state &= ~TS_BUSY;
656 		/* we have characters remaining. */
657 		if (rbp->c_cc) {
658 			tp->t_state |= TS_TIMEOUT;
659 			callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
660 		}
661 		/* wakeup we are below */
662 		if (rbp->c_cc <= tp->t_lowat) {
663 			if (tp->t_state & TS_ASLEEP) {
664 				tp->t_state &= ~TS_ASLEEP;
665 				wakeup((caddr_t) rbp);
666 			}
667 			selwakeup(&tp->t_wsel);
668 		}
669 	}
670  out:
671 	splx(s);
672 }
673 
674 void
675 ite_on(dev_t dev, int flag)
676 {
677 	struct ite_softc *ip;
678 	int unit;
679 
680 	unit = ITEUNIT(dev);
681 	ip = getitesp(dev);
682 
683 	/* force ite active, overriding graphics mode */
684 	if (flag & 1) {
685 		ip->flags |= ITE_ACTIVE;
686 		ip->flags &= ~(ITE_INGRF | ITE_INITED);
687 	}
688 	/* leave graphics mode */
689 	if (flag & 2) {
690 		ip->flags &= ~ITE_INGRF;
691 		if ((ip->flags & ITE_ACTIVE) == 0)
692 			return;
693 	}
694 	ip->flags |= ITE_ACTIVE;
695 	if (ip->flags & ITE_INGRF)
696 		return;
697 	iteinit(dev);
698 }
699 
700 void
701 ite_off(dev_t dev, int flag)
702 {
703 	struct ite_softc *ip;
704 
705 	ip = getitesp(dev);
706 	if (flag & 2)
707 		ip->flags |= ITE_INGRF;
708 	if ((ip->flags & ITE_ACTIVE) == 0)
709 		return;
710 	if ((flag & 1) ||
711 	    (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED)
712 		SUBR_DEINIT(ip);
713 	/* XXX hmm grfon() I think wants this to  go inactive. */
714 	if ((flag & 2) == 0)
715 		ip->flags &= ~ITE_ACTIVE;
716 }
717 
718 /* XXX called after changes made in underlying grf layer. */
719 /* I want to nuke this */
720 void
721 ite_reinit(dev_t dev)
722 {
723 	struct ite_softc *ip;
724 
725 	ip = getitesp(dev);
726 	ip->flags &= ~ITE_INITED;
727 	iteinit(dev);
728 }
729 
730 int
731 ite_param(struct tty *tp, struct termios *t)
732 {
733 	tp->t_ispeed = t->c_ispeed;
734 	tp->t_ospeed = t->c_ospeed;
735 	tp->t_cflag = t->c_cflag;
736 	return (0);
737 }
738 
739 void
740 ite_reset(struct ite_softc *ip)
741 {
742 	int i;
743 
744 	ip->curx = 0;
745 	ip->cury = 0;
746 	ip->attribute = ATTR_NOR;
747 	ip->save_curx = 0;
748 	ip->save_cury = 0;
749 	ip->save_attribute = ATTR_NOR;
750 	ip->ap = ip->argbuf;
751 	ip->emul_level = 0;
752 	ip->eightbit_C1 = 0;
753 	ip->top_margin = 0;
754 	ip->bottom_margin = ip->rows - 1;
755 	ip->inside_margins = 0;
756 	ip->linefeed_newline = 0;
757 	ip->auto_wrap = ite_default_wrap;
758 	ip->cursor_appmode = 0;
759 	ip->keypad_appmode = 0;
760 	ip->imode = 0;
761 	ip->key_repeat = 1;
762 	bzero(ip->tabs, ip->cols);
763 	for (i = 0; i < ip->cols; i++)
764 		ip->tabs[i] = ((i & 7) == 0);
765 }
766 
767 /*
768  * has to be global because of the shared filters.
769  */
770 static u_char key_mod;
771 static u_char last_dead;
772 
773 /* Used in console at startup only */
774 int
775 ite_cnfilter(u_char c, enum caller caller)
776 {
777 	struct key key;
778 	u_char code, up, mask;
779 	int s, i;
780 
781 	up = c & 0x80 ? 1 : 0;
782 	c &= 0x7f;
783 	code = 0;
784 
785 	s = spltty();
786 
787 	i = (int)c - KBD_LEFT_SHIFT;
788 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
789 		mask = 1 << i;
790 		if (up)
791 			key_mod &= ~mask;
792 		else
793 			key_mod |= mask;
794 		splx(s);
795 		return -1;
796 	}
797 
798 	if (up) {
799 		splx(s);
800 		return -1;
801 	}
802 
803 	/* translate modifiers */
804 	if (key_mod & KBD_MOD_SHIFT) {
805 		if (key_mod & KBD_MOD_ALT)
806 			key = kbdmap.alt_shift_keys[c];
807 		else
808 			key = kbdmap.shift_keys[c];
809 	} else if (key_mod & KBD_MOD_ALT)
810 		key = kbdmap.alt_keys[c];
811 	else {
812 		key = kbdmap.keys[c];
813 		/* if CAPS and key is CAPable (no pun intended) */
814 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
815 			key = kbdmap.shift_keys[c];
816 	}
817 	code = key.code;
818 
819 	/* if string return */
820 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
821 		splx(s);
822 		return -1;
823 	}
824 	/* handle dead keys */
825 	if (key.mode & KBD_MODE_DEAD) {
826 		/* if entered twice, send accent itself */
827 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
828 			last_dead = 0;
829 		else {
830 			last_dead = key.mode & KBD_MODE_ACCMASK;
831 			splx(s);
832 			return -1;
833 		}
834 	}
835 	if (last_dead) {
836 		/* can't apply dead flag to string-keys */
837 		if (code >= '@' && code < 0x7f)
838 			code =
839 			    acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
840 		last_dead = 0;
841 	}
842 	if (key_mod & KBD_MOD_CTRL)
843 		code &= 0x1f;
844 	if (key_mod & KBD_MOD_META)
845 		code |= 0x80;
846 
847 	/* do console mapping. */
848 	code = code == '\r' ? '\n' : code;
849 
850 	splx(s);
851 	return (code);
852 }
853 
854 /* And now the old stuff. */
855 
856 /* these are used to implement repeating keys.. */
857 static u_char last_char;
858 static u_char tout_pending;
859 
860 static struct callout repeat_ch = CALLOUT_INITIALIZER;
861 
862 /*ARGSUSED*/
863 static void
864 repeat_handler(void *arg)
865 {
866 	tout_pending = 0;
867 	if (last_char)
868 		ite_filter(last_char, ITEFILT_REPEATER);
869 }
870 
871 void
872 ite_filter(u_char c, enum caller caller)
873 {
874 	struct tty *kbd_tty;
875 	u_char code, *str, up, mask;
876 	struct key key;
877 	int s, i;
878 
879 	if (kbd_ite == NULL || kbd_ite->tp == NULL)
880 		return;
881 
882 	kbd_tty = kbd_ite->tp;
883 
884 	/* have to make sure we're at spltty in here */
885 	s = spltty();
886 
887 	/*
888 	 * keyboard interrupts come at priority 2, while softint
889 	 * generated keyboard-repeat interrupts come at level 1.  So,
890 	 * to not allow a key-up event to get thru before a repeat for
891 	 * the key-down, we remove any outstanding callout requests..
892 	rem_sicallback(ite_sifilter);
893 	 */
894 
895 	up = c & 0x80 ? 1 : 0;
896 	c &= 0x7f;
897 	code = 0;
898 
899 	i = (int)c - KBD_LEFT_SHIFT;
900 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
901 		mask = 1 << i;
902 		if (up)
903 			key_mod &= ~mask;
904 		else
905 			key_mod |= mask;
906 		splx(s);
907 		return;
908 	}
909 	/* stop repeating on up event */
910 	if (up) {
911 		if (tout_pending) {
912 			callout_stop(&repeat_ch);
913 			tout_pending = 0;
914 			last_char = 0;
915 		}
916 		splx(s);
917 		return;
918 	} else if (tout_pending && last_char != c) {
919 		/* different character, stop also */
920 		callout_stop(&repeat_ch);
921 		tout_pending = 0;
922 		last_char = 0;
923 	}
924 	/* Safety button, switch back to ascii keymap. */
925 	if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) {
926 		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
927 
928 		splx(s);
929 		return;
930 #ifdef DDB
931 	} else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) {
932 		Debugger();
933 		splx(s);
934 		return;
935 #endif
936 	}
937 	/* translate modifiers */
938 	if (key_mod & KBD_MOD_SHIFT) {
939 		if (key_mod & KBD_MOD_ALT)
940 			key = kbdmap.alt_shift_keys[c];
941 		else
942 			key = kbdmap.shift_keys[c];
943 	} else if (key_mod & KBD_MOD_ALT)
944 		key = kbdmap.alt_keys[c];
945 	else {
946 		key = kbdmap.keys[c];
947 		/* if CAPS and key is CAPable (no pun intended) */
948 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
949 			key = kbdmap.shift_keys[c];
950 	}
951 	code = key.code;
952 
953 	/*
954 	 * arrange to repeat the keystroke. By doing this at the level
955 	 * of scan-codes, we can have function keys, and keys that
956 	 * send strings, repeat too. This also entitles an additional
957 	 * overhead, since we have to do the conversion each time, but
958 	 * I guess that's ok.
959 	 */
960 	if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) {
961 		tout_pending = 1;
962 		last_char = c;
963 		callout_reset(&repeat_ch,
964 		    start_repeat_timeo * hz / 100, repeat_handler, NULL);
965 	} else if (!tout_pending && caller == ITEFILT_REPEATER &&
966 	    kbd_ite->key_repeat) {
967 		tout_pending = 1;
968 		last_char = c;
969 		callout_reset(&repeat_ch,
970 		    next_repeat_timeo * hz / 100, repeat_handler, NULL);
971 	}
972 	/* handle dead keys */
973 	if (key.mode & KBD_MODE_DEAD) {
974 		/* if entered twice, send accent itself */
975 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
976 			last_dead = 0;
977 		else {
978 			last_dead = key.mode & KBD_MODE_ACCMASK;
979 			splx(s);
980 			return;
981 		}
982 	}
983 	if (last_dead) {
984 		/* can't apply dead flag to string-keys */
985 		if (!(key.mode & KBD_MODE_STRING) && code >= '@' &&
986 		    code < 0x7f)
987 			code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
988 		last_dead = 0;
989 	}
990 	/* if not string, apply META and CTRL modifiers */
991 	if (!(key.mode & KBD_MODE_STRING)
992 	    && (!(key.mode & KBD_MODE_KPAD) ||
993 		(kbd_ite && !kbd_ite->keypad_appmode))) {
994 		if (key_mod & KBD_MOD_CTRL)
995 			code &= 0x1f;
996 		if (key_mod & KBD_MOD_META)
997 			code |= 0x80;
998 	} else if ((key.mode & KBD_MODE_KPAD) &&
999 	    (kbd_ite && kbd_ite->keypad_appmode)) {
1000 		static char in[] = {
1001 		    0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */,
1002 		    0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */,
1003 		    0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */,
1004 		    0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */,
1005 		    0x5c /* / */, 0x5d /* * */
1006 		};
1007 		static char *out = "pqrstuvwxymlnMPQRS";
1008 		char *cp = strchr(in, c);
1009 
1010 		/*
1011 		 * keypad-appmode sends SS3 followed by the above
1012 		 * translated character
1013 		 */
1014 		kbd_tty->t_linesw->l_rint(27, kbd_tty);
1015 		kbd_tty->t_linesw->l_rint('O', kbd_tty);
1016 		kbd_tty->t_linesw->l_rint(out[cp - in], kbd_tty);
1017 		splx(s);
1018 		return;
1019 	} else {
1020 		/* *NO* I don't like this.... */
1021 		static u_char app_cursor[] =
1022 		{
1023 		    3, 27, 'O', 'A',
1024 		    3, 27, 'O', 'B',
1025 		    3, 27, 'O', 'C',
1026 		    3, 27, 'O', 'D'};
1027 
1028 		str = kbdmap.strings + code;
1029 		/*
1030 		 * if this is a cursor key, AND it has the default
1031 		 * keymap setting, AND we're in app-cursor mode, switch
1032 		 * to the above table. This is *nasty* !
1033 		 */
1034 		if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode
1035 		    && !bcmp(str, "\x03\x1b[", 3) &&
1036 		    strchr("ABCD", str[3]))
1037 			str = app_cursor + 4 * (str[3] - 'A');
1038 
1039 		/*
1040 		 * using a length-byte instead of 0-termination allows
1041 		 * to embed \0 into strings, although this is not used
1042 		 * in the default keymap
1043 		 */
1044 		for (i = *str++; i; i--)
1045 			kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1046 		splx(s);
1047 		return;
1048 	}
1049 	kbd_tty->t_linesw->l_rint(code, kbd_tty);
1050 
1051 	splx(s);
1052 	return;
1053 }
1054 
1055 /* helper functions, makes the code below more readable */
1056 inline static void
1057 ite_sendstr(char *str)
1058 {
1059 	struct tty *kbd_tty;
1060 
1061 	kbd_tty = kbd_ite->tp;
1062 	KDASSERT(kbd_tty);
1063 	while (*str)
1064 		kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1065 }
1066 
1067 static void
1068 alignment_display(struct ite_softc *ip)
1069 {
1070   int i, j;
1071 
1072   for (j = 0; j < ip->rows; j++)
1073     for (i = 0; i < ip->cols; i++)
1074       SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
1075   attrclr(ip, 0, 0, ip->rows, ip->cols);
1076   SUBR_CURSOR(ip, DRAW_CURSOR);
1077 }
1078 
1079 inline static void
1080 snap_cury(struct ite_softc *ip)
1081 {
1082   if (ip->inside_margins)
1083     {
1084       if (ip->cury < ip->top_margin)
1085 	ip->cury = ip->top_margin;
1086       if (ip->cury > ip->bottom_margin)
1087 	ip->cury = ip->bottom_margin;
1088     }
1089 }
1090 
1091 inline static void
1092 ite_dnchar(struct ite_softc *ip, int n)
1093 {
1094   n = min(n, ip->cols - ip->curx);
1095   if (n < ip->cols - ip->curx)
1096     {
1097       SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
1098       attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
1099 	      1, ip->cols - ip->curx - n);
1100       attrclr(ip, ip->cury, ip->cols - n, 1, n);
1101     }
1102   while (n-- > 0)
1103     SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1104   SUBR_CURSOR(ip, DRAW_CURSOR);
1105 }
1106 
1107 inline static void
1108 ite_inchar(struct ite_softc *ip, int n)
1109 {
1110   n = min(n, ip->cols - ip->curx);
1111   if (n < ip->cols - ip->curx)
1112     {
1113       SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1114       attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1115 	      1, ip->cols - ip->curx - n);
1116       attrclr(ip, ip->cury, ip->curx, 1, n);
1117     }
1118   while (n--)
1119     SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1120   SUBR_CURSOR(ip, DRAW_CURSOR);
1121 }
1122 
1123 inline static void
1124 ite_clrtoeol(struct ite_softc *ip)
1125 {
1126   int y = ip->cury, x = ip->curx;
1127   if (ip->cols - x > 0)
1128     {
1129       SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1130       attrclr(ip, y, x, 1, ip->cols - x);
1131       SUBR_CURSOR(ip, DRAW_CURSOR);
1132     }
1133 }
1134 
1135 inline static void
1136 ite_clrtobol(struct ite_softc *ip)
1137 {
1138   int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1139   SUBR_CLEAR(ip, y, 0, 1, x);
1140   attrclr(ip, y, 0, 1, x);
1141   SUBR_CURSOR(ip, DRAW_CURSOR);
1142 }
1143 
1144 inline static void
1145 ite_clrline(struct ite_softc *ip)
1146 {
1147   int y = ip->cury;
1148   SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1149   attrclr(ip, y, 0, 1, ip->cols);
1150   SUBR_CURSOR(ip, DRAW_CURSOR);
1151 }
1152 
1153 
1154 
1155 inline static void
1156 ite_clrtoeos(struct ite_softc *ip)
1157 {
1158   ite_clrtoeol(ip);
1159   if (ip->cury < ip->rows - 1)
1160     {
1161       SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1162       attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1163       SUBR_CURSOR(ip, DRAW_CURSOR);
1164     }
1165 }
1166 
1167 inline static void
1168 ite_clrtobos(struct ite_softc *ip)
1169 {
1170   ite_clrtobol(ip);
1171   if (ip->cury > 0)
1172     {
1173       SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1174       attrclr(ip, 0, 0, ip->cury, ip->cols);
1175       SUBR_CURSOR(ip, DRAW_CURSOR);
1176     }
1177 }
1178 
1179 inline static void
1180 ite_clrscreen(struct ite_softc *ip)
1181 {
1182   SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1183   attrclr(ip, 0, 0, ip->rows, ip->cols);
1184   SUBR_CURSOR(ip, DRAW_CURSOR);
1185 }
1186 
1187 
1188 
1189 inline static void
1190 ite_dnline(struct ite_softc *ip, int n)
1191 {
1192   /* interesting.. if the cursor is outside the scrolling
1193      region, this command is simply ignored.. */
1194   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1195     return;
1196 
1197   n = min(n, ip->bottom_margin + 1 - ip->cury);
1198   if (n <= ip->bottom_margin - ip->cury)
1199     {
1200       SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1201       attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1202 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1203     }
1204   SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1205   attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1206   SUBR_CURSOR(ip, DRAW_CURSOR);
1207 }
1208 
1209 inline static void
1210 ite_inline(struct ite_softc *ip, int n)
1211 {
1212   /* interesting.. if the cursor is outside the scrolling
1213      region, this command is simply ignored.. */
1214   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1215     return;
1216 
1217   n = min(n, ip->bottom_margin + 1 - ip->cury);
1218   if (n <= ip->bottom_margin - ip->cury)
1219     {
1220       SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1221       attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1222 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1223     }
1224   SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1225   attrclr(ip, ip->cury, 0, n, ip->cols);
1226   SUBR_CURSOR(ip, DRAW_CURSOR);
1227 }
1228 
1229 inline static void
1230 ite_lf(struct ite_softc *ip)
1231 {
1232   ++ip->cury;
1233   if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows))
1234     {
1235       ip->cury--;
1236       SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1237       ite_clrline(ip);
1238     }
1239   SUBR_CURSOR(ip, MOVE_CURSOR);
1240   clr_attr(ip, ATTR_INV);
1241 }
1242 
1243 inline static void
1244 ite_crlf(struct ite_softc *ip)
1245 {
1246   ip->curx = 0;
1247   ite_lf (ip);
1248 }
1249 
1250 inline static void
1251 ite_cr(struct ite_softc *ip)
1252 {
1253   if (ip->curx)
1254     {
1255       ip->curx = 0;
1256       SUBR_CURSOR(ip, MOVE_CURSOR);
1257     }
1258 }
1259 
1260 inline static void
1261 ite_rlf(struct ite_softc *ip)
1262 {
1263   ip->cury--;
1264   if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1))
1265     {
1266       ip->cury++;
1267       SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1268       ite_clrline(ip);
1269     }
1270   SUBR_CURSOR(ip, MOVE_CURSOR);
1271   clr_attr(ip, ATTR_INV);
1272 }
1273 
1274 inline static int
1275 atoi(const char *cp)
1276 {
1277   int n;
1278 
1279   for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1280     n = n * 10 + *cp - '0';
1281 
1282   return n;
1283 }
1284 
1285 inline static int
1286 ite_argnum(struct ite_softc *ip)
1287 {
1288   char ch;
1289   int n;
1290 
1291   /* convert argument string into number */
1292   if (ip->ap == ip->argbuf)
1293     return 1;
1294   ch = *ip->ap;
1295   *ip->ap = 0;
1296   n = atoi (ip->argbuf);
1297   *ip->ap = ch;
1298 
1299   return n;
1300 }
1301 
1302 inline static int
1303 ite_zargnum(struct ite_softc *ip)
1304 {
1305   char ch;
1306   int n;
1307 
1308   /* convert argument string into number */
1309   if (ip->ap == ip->argbuf)
1310     return 0;
1311   ch = *ip->ap;
1312   *ip->ap = 0;
1313   n = atoi (ip->argbuf);
1314   *ip->ap = ch;
1315 
1316   return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1317 }
1318 
1319 void
1320 ite_putstr(const char *s, int len, dev_t dev)
1321 {
1322 	struct ite_softc *ip;
1323 	int i;
1324 
1325 	ip = getitesp(dev);
1326 
1327 	/* XXX avoid problems */
1328 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1329 	  	return;
1330 
1331 	SUBR_CURSOR(ip, START_CURSOROPT);
1332 	for (i = 0; i < len; i++)
1333 		if (s[i])
1334 			iteputchar(s[i], ip);
1335 	SUBR_CURSOR(ip, END_CURSOROPT);
1336 }
1337 
1338 static void
1339 iteprecheckwrap(struct ite_softc *ip)
1340 {
1341 	if (ip->auto_wrap && ip->curx == ip->cols) {
1342 		ip->curx = 0;
1343 		clr_attr(ip, ATTR_INV);
1344 		if (++ip->cury >= ip->bottom_margin + 1) {
1345 			ip->cury = ip->bottom_margin;
1346 			SUBR_CURSOR(ip, MOVE_CURSOR);
1347 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1348 			ite_clrtoeol(ip);
1349 		} else
1350 			SUBR_CURSOR(ip, MOVE_CURSOR);
1351 	}
1352 }
1353 
1354 static void
1355 itecheckwrap(struct ite_softc *ip)
1356 {
1357 #if 0
1358 	if (++ip->curx == ip->cols) {
1359 		if (ip->auto_wrap) {
1360 			ip->curx = 0;
1361 			clr_attr(ip, ATTR_INV);
1362 			if (++ip->cury >= ip->bottom_margin + 1) {
1363 				ip->cury = ip->bottom_margin;
1364 				SUBR_CURSOR(ip, MOVE_CURSOR);
1365 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1366 				ite_clrtoeol(ip);
1367 				return;
1368 			}
1369 		} else
1370 			/* stay there if no autowrap.. */
1371 			ip->curx--;
1372 	}
1373 #else
1374 	if (ip->curx < ip->cols) {
1375 		ip->curx++;
1376 		SUBR_CURSOR(ip, MOVE_CURSOR);
1377 	}
1378 #endif
1379 }
1380 
1381 void
1382 iteputchar(register int c, struct ite_softc *ip)
1383 {
1384 	struct tty *kbd_tty;
1385 	int n, x, y;
1386 	char *cp;
1387 
1388 	if (kbd_ite == NULL)
1389 		kbd_tty = NULL;
1390 	else
1391 		kbd_tty = kbd_ite->tp;
1392 
1393 	if (ip->escape) {
1394 		switch (ip->escape) {
1395 		case ESC:
1396 			switch (c) {
1397 				/*
1398 				 * first 7bit equivalents for the
1399 				 * 8bit control characters
1400 				 */
1401 			case 'D':
1402 				c = IND;
1403 				ip->escape = 0;
1404 				break;
1405 				/*
1406 				 * and fall into the next
1407 				 * switch below (same for all `break')
1408 				 */
1409 			case 'E':
1410 				c = NEL;
1411 				ip->escape = 0;
1412 				break;
1413 			case 'H':
1414 				c = HTS;
1415 				ip->escape = 0;
1416 				break;
1417 			case 'M':
1418 				c = RI;
1419 				ip->escape = 0;
1420 				break;
1421 			case 'N':
1422 				c = SS2;
1423 				ip->escape = 0;
1424 				break;
1425 			case 'O':
1426 				c = SS3;
1427 				ip->escape = 0;
1428 				break;
1429 			case 'P':
1430 				c = DCS;
1431 				ip->escape = 0;
1432 				break;
1433 			case '[':
1434 				c = CSI;
1435 				ip->escape = 0;
1436 				break;
1437 			case '\\':
1438 				c = ST;
1439 				ip->escape = 0;
1440 				break;
1441 			case ']':
1442 				c = OSC;
1443 				ip->escape = 0;
1444 				break;
1445 			case '^':
1446 				c = PM;
1447 				ip->escape = 0;
1448 				break;
1449 			case '_':
1450 				c = APC;
1451 				ip->escape = 0;
1452 				break;
1453 				/* introduces 7/8bit control */
1454 			case ' ':
1455 				/* can be followed by either F or G */
1456 				ip->escape = ' ';
1457 				break;
1458 			/*
1459 			 * a lot of character set selections, not yet
1460 			 * used... 94-character sets:
1461 			 */
1462 			case '(':	/* G0 */
1463 			case ')':	/* G1 */
1464 				ip->escape = c;
1465 				return;
1466 			case '*':	/* G2 */
1467 			case '+':	/* G3 */
1468 			case 'B':	/* ASCII */
1469 			case 'A':	/* ISO latin 1 */
1470 			case '<':	/* user preferred suplemental */
1471 			case '0':	/* dec special graphics */
1472 			/*
1473 			 * 96-character sets:
1474 			 */
1475 			case '-':	/* G1 */
1476 			case '.':	/* G2 */
1477 			case '/':	/* G3 */
1478 			/*
1479 			 * national character sets:
1480 			 */
1481 			case '4':	/* dutch */
1482 			case '5':
1483 			case 'C':	/* finnish */
1484 			case 'R':	/* french */
1485 			case 'Q':	/* french canadian */
1486 			case 'K':	/* german */
1487 			case 'Y':	/* italian */
1488 			case '6':	/* norwegian/danish */
1489 				/*
1490 				 * note: %5 and %6 are not supported (two
1491 				 * chars..)
1492 				 */
1493 				ip->escape = 0;
1494 				/* just ignore for now */
1495 				return;
1496 			/*
1497 			 * locking shift modes (as you might guess, not
1498 			 * yet supported..)
1499 			 */
1500 			case '`':
1501 				ip->GR = ip->G1;
1502 				ip->escape = 0;
1503 				return;
1504 			case 'n':
1505 				ip->GL = ip->G2;
1506 				ip->escape = 0;
1507 				return;
1508 			case '}':
1509 				ip->GR = ip->G2;
1510 				ip->escape = 0;
1511 				return;
1512 			case 'o':
1513 				ip->GL = ip->G3;
1514 				ip->escape = 0;
1515 				return;
1516 			case '|':
1517 				ip->GR = ip->G3;
1518 				ip->escape = 0;
1519 				return;
1520 			case '#':
1521 				/* font width/height control */
1522 				ip->escape = '#';
1523 				return;
1524 			case 'c':
1525 				/* hard terminal reset .. */
1526 				ite_reset(ip);
1527 				SUBR_CURSOR(ip, MOVE_CURSOR);
1528 				ip->escape = 0;
1529 				return;
1530 			case '7':
1531 				ip->save_curx = ip->curx;
1532 				ip->save_cury = ip->cury;
1533 				ip->save_attribute = ip->attribute;
1534 				ip->escape = 0;
1535 				return;
1536 			case '8':
1537 				ip->curx = ip->save_curx;
1538 				ip->cury = ip->save_cury;
1539 				ip->attribute = ip->save_attribute;
1540 				SUBR_CURSOR(ip, MOVE_CURSOR);
1541 				ip->escape = 0;
1542 				return;
1543 			case '=':
1544 				ip->keypad_appmode = 1;
1545 				ip->escape = 0;
1546 				return;
1547 			case '>':
1548 				ip->keypad_appmode = 0;
1549 				ip->escape = 0;
1550 				return;
1551 			case 'Z':	/* request ID */
1552 				/* XXX not clean */
1553 				if (ip->emul_level == EMUL_VT100)
1554 					ite_sendstr("\033[?61;0c");
1555 				else
1556 					ite_sendstr("\033[?63;0c");
1557 				ip->escape = 0;
1558 				return;
1559 			default:
1560 				/*
1561 				 * default catch all for not recognized ESC
1562 				 * sequences
1563 				 */
1564 				ip->escape = 0;
1565 				return;
1566 			}
1567 			break;
1568 		case '(':
1569 		case ')':
1570 			ip->escape = 0;
1571 			return;
1572 		case ' ':
1573 			switch (c) {
1574 			case 'F':
1575 				ip->eightbit_C1 = 0;
1576 				ip->escape = 0;
1577 				return;
1578 			case 'G':
1579 				ip->eightbit_C1 = 1;
1580 				ip->escape = 0;
1581 				return;
1582 			default:
1583 				/* not supported */
1584 				ip->escape = 0;
1585 				return;
1586 			}
1587 			break;
1588 		case '#':
1589 			switch (c) {
1590 			case '5':
1591 				/* single height, single width */
1592 				ip->escape = 0;
1593 				return;
1594 			case '6':
1595 				/* double width, single height */
1596 				ip->escape = 0;
1597 				return;
1598 			case '3':
1599 				/* top half */
1600 				ip->escape = 0;
1601 				return;
1602 			case '4':
1603 				/* bottom half */
1604 				ip->escape = 0;
1605 				return;
1606 			case '8':
1607 				/* screen alignment pattern... */
1608 				alignment_display(ip);
1609 				ip->escape = 0;
1610 				return;
1611 			default:
1612 				ip->escape = 0;
1613 				return;
1614 			}
1615 			break;
1616 		case CSI:
1617 			/* the biggie... */
1618 			switch (c) {
1619 			case '0':
1620 			case '1':
1621 			case '2':
1622 			case '3':
1623 			case '4':
1624 			case '5':
1625 			case '6':
1626 			case '7':
1627 			case '8':
1628 			case '9':
1629 			case ';':
1630 			case '\"':
1631 			case '$':
1632 			case '>':
1633 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1634 					*ip->ap++ = c;
1635 				return;
1636 			case BS:
1637 				/*
1638 				 * you wouldn't believe such perversion is
1639 				 * possible? it is.. BS is allowed in between
1640 				 * cursor sequences (at least), according to
1641 				 * vttest..
1642 				 */
1643 				if (--ip->curx < 0)
1644 					ip->curx = 0;
1645 				else
1646 					SUBR_CURSOR(ip, MOVE_CURSOR);
1647 				break;
1648 			case 'p':
1649 				*ip->ap = 0;
1650 				if (!strncmp(ip->argbuf, "61\"", 3))
1651 					ip->emul_level = EMUL_VT100;
1652 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1653 				    || !strncmp(ip->argbuf, "62;1\"", 5))
1654 					ip->emul_level = EMUL_VT300_7;
1655 				else
1656 					ip->emul_level = EMUL_VT300_8;
1657 				ip->escape = 0;
1658 				return;
1659 			case '?':
1660 				*ip->ap = 0;
1661 				ip->escape = '?';
1662 				ip->ap = ip->argbuf;
1663 				return;
1664 			case 'c':
1665 				*ip->ap = 0;
1666 				if (ip->argbuf[0] == '>') {
1667 					ite_sendstr("\033[>24;0;0;0c");
1668 				} else
1669 					switch (ite_zargnum(ip)) {
1670 					case 0:
1671 						/*
1672 						 * primary DA request, send
1673 						 * primary DA response
1674 						 */
1675 						if (ip->emul_level
1676 						    == EMUL_VT100)
1677 							ite_sendstr(
1678 							    "\033[?1;1c");
1679 						else
1680 							ite_sendstr(
1681 							    "\033[?63;1c");
1682 						break;
1683 					}
1684 				ip->escape = 0;
1685 				return;
1686 			case 'n':
1687 				switch (ite_zargnum(ip)) {
1688 				case 5:
1689 					/* no malfunction */
1690 					ite_sendstr("\033[0n");
1691 					break;
1692 				case 6:
1693 					/* cursor position report */
1694 					sprintf(ip->argbuf, "\033[%d;%dR",
1695 					    ip->cury + 1, ip->curx + 1);
1696 					ite_sendstr(ip->argbuf);
1697 					break;
1698 				}
1699 				ip->escape = 0;
1700 				return;
1701 			case 'x':
1702 				switch (ite_zargnum(ip)) {
1703 				case 0:
1704 					/* Fake some terminal parameters.  */
1705 					ite_sendstr("\033[2;1;1;112;112;1;0x");
1706 					break;
1707 				case 1:
1708 					ite_sendstr("\033[3;1;1;112;112;1;0x");
1709 					break;
1710 				}
1711 				ip->escape = 0;
1712 				return;
1713 			case 'g':
1714 				switch (ite_zargnum(ip)) {
1715 				case 0:
1716 					if (ip->curx < ip->cols)
1717 						ip->tabs[ip->curx] = 0;
1718 					break;
1719 				case 3:
1720 					for (n = 0; n < ip->cols; n++)
1721 						ip->tabs[n] = 0;
1722 					break;
1723 				}
1724 				ip->escape = 0;
1725 				return;
1726 			case 'h':
1727 			case 'l':
1728 				n = ite_zargnum(ip);
1729 				switch (n) {
1730 				case 4:
1731 					/* insert/replace mode */
1732 					ip->imode = (c == 'h');
1733 					break;
1734 				case 20:
1735 					ip->linefeed_newline = (c == 'h');
1736 					break;
1737 				}
1738 				ip->escape = 0;
1739 				return;
1740 			case 'M':
1741 				ite_dnline(ip, ite_argnum(ip));
1742 				ip->escape = 0;
1743 				return;
1744 			case 'L':
1745 				ite_inline(ip, ite_argnum(ip));
1746 				ip->escape = 0;
1747 				return;
1748 			case 'P':
1749 				ite_dnchar(ip, ite_argnum(ip));
1750 				ip->escape = 0;
1751 				return;
1752 			case '@':
1753 				ite_inchar(ip, ite_argnum(ip));
1754 				ip->escape = 0;
1755 				return;
1756 			case 'G':
1757 				/*
1758 				 * this one was *not* in my vt320 manual but in
1759 				 * a vt320 termcap entry.. who is right? It's
1760 				 * supposed to set the horizontal cursor
1761 				 * position.
1762 				 */
1763 				*ip->ap = 0;
1764 				x = atoi(ip->argbuf);
1765 				if (x)
1766 					x--;
1767 				ip->curx = min(x, ip->cols - 1);
1768 				ip->escape = 0;
1769 				SUBR_CURSOR(ip, MOVE_CURSOR);
1770 				clr_attr(ip, ATTR_INV);
1771 				return;
1772 			case 'd':
1773 				/*
1774 				 * same thing here, this one's for setting the
1775 				 * absolute vertical cursor position. Not
1776 				 * documented...
1777 				 */
1778 				*ip->ap = 0;
1779 				y = atoi(ip->argbuf);
1780 				if (y)
1781 					y--;
1782 				if (ip->inside_margins)
1783 					y += ip->top_margin;
1784 				ip->cury = min(y, ip->rows - 1);
1785 				ip->escape = 0;
1786 				snap_cury(ip);
1787 				SUBR_CURSOR(ip, MOVE_CURSOR);
1788 				clr_attr(ip, ATTR_INV);
1789 				return;
1790 			case 'H':
1791 			case 'f':
1792 				*ip->ap = 0;
1793 				y = atoi(ip->argbuf);
1794 				x = 0;
1795 				cp = strchr(ip->argbuf, ';');
1796 				if (cp)
1797 					x = atoi(cp + 1);
1798 				if (x)
1799 					x--;
1800 				if (y)
1801 					y--;
1802 				if (ip->inside_margins)
1803 					y += ip->top_margin;
1804 				ip->cury = min(y, ip->rows - 1);
1805 				ip->curx = min(x, ip->cols - 1);
1806 				ip->escape = 0;
1807 				snap_cury(ip);
1808 				SUBR_CURSOR(ip, MOVE_CURSOR);
1809 				clr_attr(ip, ATTR_INV);
1810 				return;
1811 			case 'A':
1812 				n = ite_argnum(ip);
1813 				n = ip->cury - (n ? n : 1);
1814 				if (n < 0)
1815 					n = 0;
1816 				if (ip->inside_margins)
1817 					n = max(ip->top_margin, n);
1818 				else if (n == ip->top_margin - 1)
1819 					/*
1820 					 * allow scrolling outside region, but
1821 					 * don't scroll out of active region
1822 					 * without explicit CUP
1823 					 */
1824 					n = ip->top_margin;
1825 				ip->cury = n;
1826 				ip->escape = 0;
1827 				SUBR_CURSOR(ip, MOVE_CURSOR);
1828 				clr_attr(ip, ATTR_INV);
1829 				return;
1830 			case 'B':
1831 				n = ite_argnum(ip);
1832 				n = ip->cury + (n ? n : 1);
1833 				n = min(ip->rows - 1, n);
1834 				if (ip->inside_margins)
1835 					n = min(ip->bottom_margin, n);
1836 				else if (n == ip->bottom_margin + 1)
1837 					/*
1838 					 * allow scrolling outside region, but
1839 					 * don't scroll out of active region
1840 					 * without explicit CUP
1841 					 */
1842 					n = ip->bottom_margin;
1843 				ip->cury = n;
1844 				ip->escape = 0;
1845 				SUBR_CURSOR(ip, MOVE_CURSOR);
1846 				clr_attr(ip, ATTR_INV);
1847 				return;
1848 			case 'C':
1849 				n = ite_argnum(ip);
1850 				n = n ? n : 1;
1851 				ip->curx = min(ip->curx + n, ip->cols - 1);
1852 				ip->escape = 0;
1853 				SUBR_CURSOR(ip, MOVE_CURSOR);
1854 				clr_attr(ip, ATTR_INV);
1855 				return;
1856 			case 'D':
1857 				n = ite_argnum(ip);
1858 				n = n ? n : 1;
1859 				n = ip->curx - n;
1860 				ip->curx = n >= 0 ? n : 0;
1861 				ip->escape = 0;
1862 				SUBR_CURSOR(ip, MOVE_CURSOR);
1863 				clr_attr(ip, ATTR_INV);
1864 				return;
1865 			case 'J':
1866 				*ip->ap = 0;
1867 				n = ite_zargnum(ip);
1868 				if (n == 0)
1869 					ite_clrtoeos(ip);
1870 				else if (n == 1)
1871 					ite_clrtobos(ip);
1872 				else if (n == 2)
1873 					ite_clrscreen(ip);
1874 				ip->escape = 0;
1875 				return;
1876 			case 'K':
1877 				n = ite_zargnum(ip);
1878 				if (n == 0)
1879 					ite_clrtoeol(ip);
1880 				else if (n == 1)
1881 					ite_clrtobol(ip);
1882 				else if (n == 2)
1883 					ite_clrline(ip);
1884 				ip->escape = 0;
1885 				return;
1886 			case 'X':
1887 				n = ite_argnum(ip) - 1;
1888 				n = min(n, ip->cols - 1 - ip->curx);
1889 				for (; n >= 0; n--) {
1890 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1891 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1892 				}
1893 				ip->escape = 0;
1894 				return;
1895 			case '}':
1896 			case '`':
1897 				/* status line control */
1898 				ip->escape = 0;
1899 				return;
1900 			case 'r':
1901 				*ip->ap = 0;
1902 				x = atoi(ip->argbuf);
1903 				x = x ? x : 1;
1904 				y = ip->rows;
1905 				cp = strchr(ip->argbuf, ';');
1906 				if (cp) {
1907 					y = atoi(cp + 1);
1908 					y = y ? y : ip->rows;
1909 				}
1910 				if (y - x < 2) {
1911 					/*
1912 					 * if illegal scrolling region, reset
1913 					 * to defaults
1914 					 */
1915 					x = 1;
1916 					y = ip->rows;
1917 				}
1918 				x--;
1919 				y--;
1920 				ip->top_margin = min(x, ip->rows - 1);
1921 				ip->bottom_margin = min(y, ip->rows - 1);
1922 				if (ip->inside_margins) {
1923 					ip->cury = ip->top_margin;
1924 					ip->curx = 0;
1925 					SUBR_CURSOR(ip, MOVE_CURSOR);
1926 				}
1927 				ip->escape = 0;
1928 				return;
1929 			case 'm':
1930 				/* big attribute setter/resetter */
1931 				{ char *cp;
1932 				*ip->ap = 0;
1933 				/* kludge to make CSIm work (== CSI0m) */
1934 				if (ip->ap == ip->argbuf)
1935 					ip->ap++;
1936 				for (cp = ip->argbuf; cp < ip->ap;) {
1937 					switch (*cp) {
1938 					case 0:
1939 					case '0':
1940 						clr_attr(ip, ATTR_ALL);
1941 						cp++;
1942 						break;
1943 
1944 					case '1':
1945 						set_attr(ip, ATTR_BOLD);
1946 						cp++;
1947 						break;
1948 
1949 					case '2':
1950 						switch (cp[1]) {
1951 						case '2':
1952 							clr_attr(ip, ATTR_BOLD);
1953 							cp += 2;
1954 							break;
1955 
1956 						case '4':
1957 							clr_attr(ip, ATTR_UL);
1958 							cp += 2;
1959 							break;
1960 
1961 						case '5':
1962 							clr_attr(ip, ATTR_BLINK);
1963 							cp += 2;
1964 							break;
1965 
1966 						case '7':
1967 							clr_attr(ip, ATTR_INV);
1968 							cp += 2;
1969 							break;
1970 
1971 						default:
1972 							cp++;
1973 							break;
1974 						}
1975 						break;
1976 
1977 					case '4':
1978 						set_attr(ip, ATTR_UL);
1979 						cp++;
1980 						break;
1981 
1982 					case '5':
1983 						set_attr(ip, ATTR_BLINK);
1984 						cp++;
1985 						break;
1986 
1987 					case '7':
1988 						set_attr(ip, ATTR_INV);
1989 						cp++;
1990 						break;
1991 
1992 					default:
1993 						cp++;
1994 						break;
1995 					}
1996 				}
1997 				ip->escape = 0;
1998 				return; }
1999 			case 'u':
2000 				/* DECRQTSR */
2001 				ite_sendstr("\033P\033\\");
2002 				ip->escape = 0;
2003 				return;
2004 			default:
2005 				ip->escape = 0;
2006 				return;
2007 			}
2008 			break;
2009 		case '?':	/* CSI ? */
2010 			switch (c) {
2011 			case '0':
2012 			case '1':
2013 			case '2':
2014 			case '3':
2015 			case '4':
2016 			case '5':
2017 			case '6':
2018 			case '7':
2019 			case '8':
2020 			case '9':
2021 			case ';':
2022 			case '\"':
2023 			case '$':
2024 				/*
2025 				 * Don't fill the last character;
2026 				 * it's needed.
2027 				 * XXX yeah, where ??
2028 				 */
2029 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2030 					*ip->ap++ = c;
2031 				return;
2032 			case 'n':
2033 				*ip->ap = 0;
2034 				if (ip->ap == &ip->argbuf[2]) {
2035 					if (!strncmp(ip->argbuf, "15", 2))
2036 						/* printer status: no printer */
2037 						ite_sendstr("\033[13n");
2038 
2039 					else if (!strncmp(ip->argbuf, "25", 2))
2040 						/* udk status */
2041 						ite_sendstr("\033[20n");
2042 
2043 					else if (!strncmp(ip->argbuf, "26", 2))
2044 						/* keyboard dialect: US */
2045 						ite_sendstr("\033[27;1n");
2046 				}
2047 				ip->escape = 0;
2048 				return;
2049 			case 'h':
2050 			case 'l':
2051 				n = ite_zargnum(ip);
2052 				switch (n) {
2053 				case 1:
2054 					ip->cursor_appmode = (c == 'h');
2055 					break;
2056 				case 3:
2057 					/* 132/80 columns (132 == 'h') */
2058 					break;
2059 				case 4:	/* smooth scroll */
2060 					break;
2061 				case 5:
2062 					/*
2063 					 * light background (=='h') /dark
2064 					 * background(=='l')
2065 					 */
2066 					break;
2067 				case 6:	/* origin mode */
2068 					ip->inside_margins = (c == 'h');
2069 					ip->curx = 0;
2070 					ip->cury = ip->inside_margins ?
2071 					    ip->top_margin : 0;
2072 					SUBR_CURSOR(ip, MOVE_CURSOR);
2073 					break;
2074 				case 7:	/* auto wraparound */
2075 					ip->auto_wrap = (c == 'h');
2076 					break;
2077 				case 8:	/* keyboard repeat */
2078 					ip->key_repeat = (c == 'h');
2079 					break;
2080 				case 20:	/* newline mode */
2081 					ip->linefeed_newline = (c == 'h');
2082 					break;
2083 				case 25:	/* cursor on/off */
2084 					SUBR_CURSOR(ip, (c == 'h') ?
2085 					    DRAW_CURSOR : ERASE_CURSOR);
2086 					break;
2087 				}
2088 				ip->escape = 0;
2089 				return;
2090 			default:
2091 				ip->escape = 0;
2092 				return;
2093 			}
2094 			break;
2095 		default:
2096 			ip->escape = 0;
2097 			return;
2098 		}
2099 	}
2100 	switch (c) {
2101 	case VT:		/* VT is treated like LF */
2102 	case FF:		/* so is FF */
2103 	case LF:
2104 		/*
2105 		 * cr->crlf distinction is done here, on output, not on input!
2106 		 */
2107 		if (ip->linefeed_newline)
2108 			ite_crlf(ip);
2109 		else
2110 			ite_lf(ip);
2111 		break;
2112 	case CR:
2113 		ite_cr(ip);
2114 		break;
2115 	case BS:
2116 		if (--ip->curx < 0)
2117 			ip->curx = 0;
2118 		else
2119 			SUBR_CURSOR(ip, MOVE_CURSOR);
2120 		break;
2121 	case HT:
2122 		for (n = ip->curx + 1; n < ip->cols; n++) {
2123 			if (ip->tabs[n]) {
2124 				ip->curx = n;
2125 				SUBR_CURSOR(ip, MOVE_CURSOR);
2126 				break;
2127 			}
2128 		}
2129 		break;
2130 	case BEL:
2131 		if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty
2132 #ifdef DRACO
2133 		    && !is_draco()
2134 #endif
2135 		    )
2136 			ite_bell();
2137 		break;
2138 	case SO:
2139 		ip->GL = ip->G1;
2140 		break;
2141 	case SI:
2142 		ip->GL = ip->G0;
2143 		break;
2144 	case ENQ:
2145 		/* send answer-back message !! */
2146 		break;
2147 	case CAN:
2148 		ip->escape = 0;	/* cancel any escape sequence in progress */
2149 		break;
2150 	case SUB:
2151 		ip->escape = 0;	/* dito, but see below */
2152 		/* should also display a reverse question mark!! */
2153 		break;
2154 	case ESC:
2155 		ip->escape = ESC;
2156 		break;
2157 	/*
2158 	 * now it gets weird.. 8bit control sequences..
2159 	 */
2160 	case IND:
2161 		/* index: move cursor down, scroll */
2162 		ite_lf(ip);
2163 		break;
2164 	case NEL:
2165 		/* next line. next line, first pos. */
2166 		ite_crlf(ip);
2167 		break;
2168 	case HTS:
2169 		/* set horizontal tab */
2170 		if (ip->curx < ip->cols)
2171 			ip->tabs[ip->curx] = 1;
2172 		break;
2173 	case RI:
2174 		/* reverse index */
2175 		ite_rlf(ip);
2176 		break;
2177 	case SS2:
2178 		/* go into G2 for one character */
2179 		/* not yet supported */
2180 		break;
2181 	case SS3:
2182 		/* go into G3 for one character */
2183 		break;
2184 	case DCS:
2185 		/* device control string introducer */
2186 		ip->escape = DCS;
2187 		ip->ap = ip->argbuf;
2188 		break;
2189 	case CSI:
2190 		/* control sequence introducer */
2191 		ip->escape = CSI;
2192 		ip->ap = ip->argbuf;
2193 		break;
2194 	case ST:
2195 		/* string terminator */
2196 		/* ignore, if not used as terminator */
2197 		break;
2198 	case OSC:
2199 		/*
2200 		 * introduces OS command. Ignore everything
2201 		 * upto ST
2202 		 */
2203 		ip->escape = OSC;
2204 		break;
2205 	case PM:
2206 		/* privacy message, ignore everything upto ST */
2207 		ip->escape = PM;
2208 		break;
2209 	case APC:
2210 		/*
2211 		 * application program command, ignore * everything upto ST
2212 		 */
2213 		ip->escape = APC;
2214 		break;
2215 	default:
2216 		if ((c & 0x7f) < ' ' || c == DEL)
2217 			break;
2218 		if (ip->imode)
2219 			ite_inchar(ip, 1);
2220 		iteprecheckwrap(ip);
2221 #ifdef DO_WEIRD_ATTRIBUTES
2222 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2223 			attrset(ip, ATTR_INV);
2224 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2225 		} else
2226 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2227 #else
2228 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2229 #endif
2230 		SUBR_CURSOR(ip, DRAW_CURSOR);
2231 		itecheckwrap(ip);
2232 		break;
2233 	}
2234 }
2235 
2236