xref: /netbsd-src/sys/arch/amiga/dev/ite.c (revision fd5cb0acea84d278e04e640d37ca2398f894991f)
1 /*	$NetBSD: ite.c,v 1.68 2005/01/19 02:08:40 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 1.68 2005/01/19 02:08:40 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->flags & ITE_ATTACHED) == 0)
457 		return ENXIO;
458 
459 	if (ip->tp == NULL) {
460 		tp = ip->tp = ttymalloc();
461 		tty_attach(tp);
462 	} else
463 		tp = ip->tp;
464 	if ((tp->t_state & (TS_ISOPEN | TS_XCLUDE)) == (TS_ISOPEN | TS_XCLUDE)
465 	    && p->p_ucred->cr_uid != 0)
466 		return (EBUSY);
467 	if ((ip->flags & ITE_ACTIVE) == 0) {
468 		ite_on(dev, 0);
469 		first = 1;
470 	}
471 	tp->t_oproc = itestart;
472 	tp->t_param = ite_param;
473 	tp->t_dev = dev;
474 	if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
475 		ttychars(tp);
476 		tp->t_iflag = TTYDEF_IFLAG;
477 		tp->t_oflag = TTYDEF_OFLAG;
478 		tp->t_cflag = TTYDEF_CFLAG;
479 		tp->t_lflag = TTYDEF_LFLAG;
480 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
481 		tp->t_state = TS_CARR_ON;
482 		ttsetwater(tp);
483 	}
484 	error = ttyopen(tp, 0, mode & O_NONBLOCK);
485 	if (error)
486 		goto bad;
487 
488 	error = tp->t_linesw->l_open(dev, tp);
489 	if (error)
490 		goto bad;
491 
492 	tp->t_winsize.ws_row = ip->rows;
493 	tp->t_winsize.ws_col = ip->cols;
494 	kbdenable();
495 	return (0);
496 bad:
497 	if (first)
498 		ite_off(dev, 0);
499 	return (error);
500 }
501 
502 int
503 iteclose(dev_t dev, int flag, int mode, struct proc *p)
504 {
505 	struct tty *tp;
506 
507 	tp = getitesp(dev)->tp;
508 
509 	KDASSERT(tp);
510 	tp->t_linesw->l_close(tp, flag);
511 	ttyclose(tp);
512 	ite_off(dev, 0);
513 	return (0);
514 }
515 
516 int
517 iteread(dev_t dev, struct uio *uio, int flag)
518 {
519 	struct tty *tp;
520 
521 	tp = getitesp(dev)->tp;
522 
523 	KDASSERT(tp);
524 	return tp->t_linesw->l_read(tp, uio, flag);
525 }
526 
527 int
528 itewrite(dev_t dev, struct uio *uio, int flag)
529 {
530 	struct tty *tp;
531 
532 	tp = getitesp(dev)->tp;
533 
534 	KDASSERT(tp);
535 	return tp->t_linesw->l_write(tp, uio, flag);
536 }
537 
538 int
539 itepoll(dev_t dev, int events, struct proc *p)
540 {
541 	struct tty *tp;
542 
543 	tp = getitesp(dev)->tp;
544 
545 	KDASSERT(tp);
546 	return ((*tp->t_linesw->l_poll)(tp, events, p));
547 }
548 
549 struct tty *
550 itetty(dev_t dev)
551 {
552 	return (getitesp(dev)->tp);
553 }
554 
555 int
556 iteioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
557 {
558 	struct iterepeat *irp;
559 	struct ite_softc *ip;
560 	struct itebell *ib;
561 	struct tty *tp;
562 	int error;
563 
564 	ip = getitesp(dev);
565 	tp = ip->tp;
566 
567 	KDASSERT(tp);
568 
569 	error = tp->t_linesw->l_ioctl(tp, cmd, addr, flag, p);
570 	if (error != EPASSTHROUGH)
571 		return (error);
572 	error = ttioctl(tp, cmd, addr, flag, p);
573 	if (error != EPASSTHROUGH)
574 		return (error);
575 
576 	switch (cmd) {
577 	case ITEIOCGBELL:
578 		ib = (struct itebell *)addr;
579 		ib->volume = bvolume;
580 		ib->pitch = bpitch;
581 		ib->msec = bmsec;
582 		return (0);
583 	case ITEIOCSBELL:
584 		ib = (struct itebell *)addr;
585 
586 		if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH ||
587 		    ib->volume > MAXBVOLUME || ib->msec > MAXBTIME)
588 			return (EINVAL);
589 		bvolume = ib->volume;
590 		bpitch = ib->pitch;
591 		bmsec = ib->msec;
592 		return (0);
593 	case ITEIOCSKMAP:
594 		if (addr == 0)
595 			return(EFAULT);
596 		bcopy(addr, &kbdmap, sizeof(struct kbdmap));
597 		return(0);
598 	case ITEIOCGKMAP:
599 		if (addr == NULL)
600 			return(EFAULT);
601 		bcopy(&kbdmap, addr, sizeof(struct kbdmap));
602 		return(0);
603 	case ITEIOCGREPT:
604 		irp = (struct iterepeat *)addr;
605 		irp->start = start_repeat_timeo;
606 		irp->next = next_repeat_timeo;
607 		return (0);
608 	case ITEIOCSREPT:
609 		irp = (struct iterepeat *)addr;
610 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
611 			return(EINVAL);
612 		start_repeat_timeo = irp->start;
613 		next_repeat_timeo = irp->next;
614 		return(0);
615 	}
616 #if NGRFCC > 0
617 	/* XXX */
618 	if (minor(dev) == 0) {
619 		error = ite_grf_ioctl(ip, cmd, addr, flag, p);
620 		if (error >= 0)
621 			return (error);
622 	}
623 #endif
624 	return (EPASSTHROUGH);
625 }
626 
627 void
628 itestart(struct tty *tp)
629 {
630 	struct clist *rbp;
631 	struct ite_softc *ip;
632 	u_char buf[ITEBURST];
633 	int s, len;
634 
635 	ip = getitesp(tp->t_dev);
636 
637 	KDASSERT(tp);
638 
639 	s = spltty(); {
640 		if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
641 			goto out;
642 
643 		tp->t_state |= TS_BUSY;
644 		rbp = &tp->t_outq;
645 
646 		len = q_to_b(rbp, buf, ITEBURST);
647 	} splx(s);
648 
649 	/* Here is a really good place to implement pre/jumpscroll() */
650 	ite_putstr(buf, len, tp->t_dev);
651 
652 	s = spltty(); {
653 		tp->t_state &= ~TS_BUSY;
654 		/* we have characters remaining. */
655 		if (rbp->c_cc) {
656 			tp->t_state |= TS_TIMEOUT;
657 			callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
658 		}
659 		/* wakeup we are below */
660 		if (rbp->c_cc <= tp->t_lowat) {
661 			if (tp->t_state & TS_ASLEEP) {
662 				tp->t_state &= ~TS_ASLEEP;
663 				wakeup((caddr_t) rbp);
664 			}
665 			selwakeup(&tp->t_wsel);
666 		}
667 	}
668  out:
669 	splx(s);
670 }
671 
672 void
673 ite_on(dev_t dev, int flag)
674 {
675 	struct ite_softc *ip;
676 	int unit;
677 
678 	unit = ITEUNIT(dev);
679 	ip = getitesp(dev);
680 
681 	/* force ite active, overriding graphics mode */
682 	if (flag & 1) {
683 		ip->flags |= ITE_ACTIVE;
684 		ip->flags &= ~(ITE_INGRF | ITE_INITED);
685 	}
686 	/* leave graphics mode */
687 	if (flag & 2) {
688 		ip->flags &= ~ITE_INGRF;
689 		if ((ip->flags & ITE_ACTIVE) == 0)
690 			return;
691 	}
692 	ip->flags |= ITE_ACTIVE;
693 	if (ip->flags & ITE_INGRF)
694 		return;
695 	iteinit(dev);
696 }
697 
698 void
699 ite_off(dev_t dev, int flag)
700 {
701 	struct ite_softc *ip;
702 
703 	ip = getitesp(dev);
704 	if (flag & 2)
705 		ip->flags |= ITE_INGRF;
706 	if ((ip->flags & ITE_ACTIVE) == 0)
707 		return;
708 	if ((flag & 1) ||
709 	    (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED)
710 		SUBR_DEINIT(ip);
711 	/* XXX hmm grfon() I think wants this to  go inactive. */
712 	if ((flag & 2) == 0)
713 		ip->flags &= ~ITE_ACTIVE;
714 }
715 
716 /* XXX called after changes made in underlying grf layer. */
717 /* I want to nuke this */
718 void
719 ite_reinit(dev_t dev)
720 {
721 	struct ite_softc *ip;
722 
723 	ip = getitesp(dev);
724 	ip->flags &= ~ITE_INITED;
725 	iteinit(dev);
726 }
727 
728 int
729 ite_param(struct tty *tp, struct termios *t)
730 {
731 	tp->t_ispeed = t->c_ispeed;
732 	tp->t_ospeed = t->c_ospeed;
733 	tp->t_cflag = t->c_cflag;
734 	return (0);
735 }
736 
737 void
738 ite_reset(struct ite_softc *ip)
739 {
740 	int i;
741 
742 	ip->curx = 0;
743 	ip->cury = 0;
744 	ip->attribute = ATTR_NOR;
745 	ip->save_curx = 0;
746 	ip->save_cury = 0;
747 	ip->save_attribute = ATTR_NOR;
748 	ip->ap = ip->argbuf;
749 	ip->emul_level = 0;
750 	ip->eightbit_C1 = 0;
751 	ip->top_margin = 0;
752 	ip->bottom_margin = ip->rows - 1;
753 	ip->inside_margins = 0;
754 	ip->linefeed_newline = 0;
755 	ip->auto_wrap = ite_default_wrap;
756 	ip->cursor_appmode = 0;
757 	ip->keypad_appmode = 0;
758 	ip->imode = 0;
759 	ip->key_repeat = 1;
760 	bzero(ip->tabs, ip->cols);
761 	for (i = 0; i < ip->cols; i++)
762 		ip->tabs[i] = ((i & 7) == 0);
763 }
764 
765 /*
766  * has to be global because of the shared filters.
767  */
768 static u_char key_mod;
769 static u_char last_dead;
770 
771 /* Used in console at startup only */
772 int
773 ite_cnfilter(u_char c, enum caller caller)
774 {
775 	struct key key;
776 	u_char code, up, mask;
777 	int s, i;
778 
779 	up = c & 0x80 ? 1 : 0;
780 	c &= 0x7f;
781 	code = 0;
782 
783 	s = spltty();
784 
785 	i = (int)c - KBD_LEFT_SHIFT;
786 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
787 		mask = 1 << i;
788 		if (up)
789 			key_mod &= ~mask;
790 		else
791 			key_mod |= mask;
792 		splx(s);
793 		return -1;
794 	}
795 
796 	if (up) {
797 		splx(s);
798 		return -1;
799 	}
800 
801 	/* translate modifiers */
802 	if (key_mod & KBD_MOD_SHIFT) {
803 		if (key_mod & KBD_MOD_ALT)
804 			key = kbdmap.alt_shift_keys[c];
805 		else
806 			key = kbdmap.shift_keys[c];
807 	} else if (key_mod & KBD_MOD_ALT)
808 		key = kbdmap.alt_keys[c];
809 	else {
810 		key = kbdmap.keys[c];
811 		/* if CAPS and key is CAPable (no pun intended) */
812 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
813 			key = kbdmap.shift_keys[c];
814 	}
815 	code = key.code;
816 
817 	/* if string return */
818 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
819 		splx(s);
820 		return -1;
821 	}
822 	/* handle dead keys */
823 	if (key.mode & KBD_MODE_DEAD) {
824 		/* if entered twice, send accent itself */
825 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
826 			last_dead = 0;
827 		else {
828 			last_dead = key.mode & KBD_MODE_ACCMASK;
829 			splx(s);
830 			return -1;
831 		}
832 	}
833 	if (last_dead) {
834 		/* can't apply dead flag to string-keys */
835 		if (code >= '@' && code < 0x7f)
836 			code =
837 			    acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
838 		last_dead = 0;
839 	}
840 	if (key_mod & KBD_MOD_CTRL)
841 		code &= 0x1f;
842 	if (key_mod & KBD_MOD_META)
843 		code |= 0x80;
844 
845 	/* do console mapping. */
846 	code = code == '\r' ? '\n' : code;
847 
848 	splx(s);
849 	return (code);
850 }
851 
852 /* And now the old stuff. */
853 
854 /* these are used to implement repeating keys.. */
855 static u_char last_char;
856 static u_char tout_pending;
857 
858 static struct callout repeat_ch = CALLOUT_INITIALIZER;
859 
860 /*ARGSUSED*/
861 static void
862 repeat_handler(void *arg)
863 {
864 	tout_pending = 0;
865 	if (last_char)
866 		ite_filter(last_char, ITEFILT_REPEATER);
867 }
868 
869 void
870 ite_filter(u_char c, enum caller caller)
871 {
872 	struct tty *kbd_tty;
873 	u_char code, *str, up, mask;
874 	struct key key;
875 	int s, i;
876 
877 	if (kbd_ite == NULL || kbd_ite->tp == NULL)
878 		return;
879 
880 	kbd_tty = kbd_ite->tp;
881 
882 	/* have to make sure we're at spltty in here */
883 	s = spltty();
884 
885 	/*
886 	 * keyboard interrupts come at priority 2, while softint
887 	 * generated keyboard-repeat interrupts come at level 1.  So,
888 	 * to not allow a key-up event to get thru before a repeat for
889 	 * the key-down, we remove any outstanding callout requests..
890 	rem_sicallback(ite_sifilter);
891 	 */
892 
893 	up = c & 0x80 ? 1 : 0;
894 	c &= 0x7f;
895 	code = 0;
896 
897 	i = (int)c - KBD_LEFT_SHIFT;
898 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
899 		mask = 1 << i;
900 		if (up)
901 			key_mod &= ~mask;
902 		else
903 			key_mod |= mask;
904 		splx(s);
905 		return;
906 	}
907 	/* stop repeating on up event */
908 	if (up) {
909 		if (tout_pending) {
910 			callout_stop(&repeat_ch);
911 			tout_pending = 0;
912 			last_char = 0;
913 		}
914 		splx(s);
915 		return;
916 	} else if (tout_pending && last_char != c) {
917 		/* different character, stop also */
918 		callout_stop(&repeat_ch);
919 		tout_pending = 0;
920 		last_char = 0;
921 	}
922 	/* Safety button, switch back to ascii keymap. */
923 	if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) {
924 		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
925 
926 		splx(s);
927 		return;
928 #ifdef DDB
929 	} else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) {
930 		Debugger();
931 		splx(s);
932 		return;
933 #endif
934 	}
935 	/* translate modifiers */
936 	if (key_mod & KBD_MOD_SHIFT) {
937 		if (key_mod & KBD_MOD_ALT)
938 			key = kbdmap.alt_shift_keys[c];
939 		else
940 			key = kbdmap.shift_keys[c];
941 	} else if (key_mod & KBD_MOD_ALT)
942 		key = kbdmap.alt_keys[c];
943 	else {
944 		key = kbdmap.keys[c];
945 		/* if CAPS and key is CAPable (no pun intended) */
946 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
947 			key = kbdmap.shift_keys[c];
948 	}
949 	code = key.code;
950 
951 	/*
952 	 * arrange to repeat the keystroke. By doing this at the level
953 	 * of scan-codes, we can have function keys, and keys that
954 	 * send strings, repeat too. This also entitles an additional
955 	 * overhead, since we have to do the conversion each time, but
956 	 * I guess that's ok.
957 	 */
958 	if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) {
959 		tout_pending = 1;
960 		last_char = c;
961 		callout_reset(&repeat_ch,
962 		    start_repeat_timeo * hz / 100, repeat_handler, NULL);
963 	} else if (!tout_pending && caller == ITEFILT_REPEATER &&
964 	    kbd_ite->key_repeat) {
965 		tout_pending = 1;
966 		last_char = c;
967 		callout_reset(&repeat_ch,
968 		    next_repeat_timeo * hz / 100, repeat_handler, NULL);
969 	}
970 	/* handle dead keys */
971 	if (key.mode & KBD_MODE_DEAD) {
972 		/* if entered twice, send accent itself */
973 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
974 			last_dead = 0;
975 		else {
976 			last_dead = key.mode & KBD_MODE_ACCMASK;
977 			splx(s);
978 			return;
979 		}
980 	}
981 	if (last_dead) {
982 		/* can't apply dead flag to string-keys */
983 		if (!(key.mode & KBD_MODE_STRING) && code >= '@' &&
984 		    code < 0x7f)
985 			code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
986 		last_dead = 0;
987 	}
988 	/* if not string, apply META and CTRL modifiers */
989 	if (!(key.mode & KBD_MODE_STRING)
990 	    && (!(key.mode & KBD_MODE_KPAD) ||
991 		(kbd_ite && !kbd_ite->keypad_appmode))) {
992 		if (key_mod & KBD_MOD_CTRL)
993 			code &= 0x1f;
994 		if (key_mod & KBD_MOD_META)
995 			code |= 0x80;
996 	} else if ((key.mode & KBD_MODE_KPAD) &&
997 	    (kbd_ite && kbd_ite->keypad_appmode)) {
998 		static char in[] = {
999 		    0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */,
1000 		    0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */,
1001 		    0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */,
1002 		    0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */,
1003 		    0x5c /* / */, 0x5d /* * */
1004 		};
1005 		static char *out = "pqrstuvwxymlnMPQRS";
1006 		char *cp = strchr(in, c);
1007 
1008 		/*
1009 		 * keypad-appmode sends SS3 followed by the above
1010 		 * translated character
1011 		 */
1012 		kbd_tty->t_linesw->l_rint(27, kbd_tty);
1013 		kbd_tty->t_linesw->l_rint('O', kbd_tty);
1014 		kbd_tty->t_linesw->l_rint(out[cp - in], kbd_tty);
1015 		splx(s);
1016 		return;
1017 	} else {
1018 		/* *NO* I don't like this.... */
1019 		static u_char app_cursor[] =
1020 		{
1021 		    3, 27, 'O', 'A',
1022 		    3, 27, 'O', 'B',
1023 		    3, 27, 'O', 'C',
1024 		    3, 27, 'O', 'D'};
1025 
1026 		str = kbdmap.strings + code;
1027 		/*
1028 		 * if this is a cursor key, AND it has the default
1029 		 * keymap setting, AND we're in app-cursor mode, switch
1030 		 * to the above table. This is *nasty* !
1031 		 */
1032 		if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode
1033 		    && !bcmp(str, "\x03\x1b[", 3) &&
1034 		    strchr("ABCD", str[3]))
1035 			str = app_cursor + 4 * (str[3] - 'A');
1036 
1037 		/*
1038 		 * using a length-byte instead of 0-termination allows
1039 		 * to embed \0 into strings, although this is not used
1040 		 * in the default keymap
1041 		 */
1042 		for (i = *str++; i; i--)
1043 			kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1044 		splx(s);
1045 		return;
1046 	}
1047 	kbd_tty->t_linesw->l_rint(code, kbd_tty);
1048 
1049 	splx(s);
1050 	return;
1051 }
1052 
1053 /* helper functions, makes the code below more readable */
1054 inline static void
1055 ite_sendstr(char *str)
1056 {
1057 	struct tty *kbd_tty;
1058 
1059 	kbd_tty = kbd_ite->tp;
1060 	KDASSERT(kbd_tty);
1061 	while (*str)
1062 		kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1063 }
1064 
1065 static void
1066 alignment_display(struct ite_softc *ip)
1067 {
1068   int i, j;
1069 
1070   for (j = 0; j < ip->rows; j++)
1071     for (i = 0; i < ip->cols; i++)
1072       SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
1073   attrclr(ip, 0, 0, ip->rows, ip->cols);
1074   SUBR_CURSOR(ip, DRAW_CURSOR);
1075 }
1076 
1077 inline static void
1078 snap_cury(struct ite_softc *ip)
1079 {
1080   if (ip->inside_margins)
1081     {
1082       if (ip->cury < ip->top_margin)
1083 	ip->cury = ip->top_margin;
1084       if (ip->cury > ip->bottom_margin)
1085 	ip->cury = ip->bottom_margin;
1086     }
1087 }
1088 
1089 inline static void
1090 ite_dnchar(struct ite_softc *ip, int n)
1091 {
1092   n = min(n, ip->cols - ip->curx);
1093   if (n < ip->cols - ip->curx)
1094     {
1095       SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
1096       attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
1097 	      1, ip->cols - ip->curx - n);
1098       attrclr(ip, ip->cury, ip->cols - n, 1, n);
1099     }
1100   while (n-- > 0)
1101     SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1102   SUBR_CURSOR(ip, DRAW_CURSOR);
1103 }
1104 
1105 inline static void
1106 ite_inchar(struct ite_softc *ip, int n)
1107 {
1108   n = min(n, ip->cols - ip->curx);
1109   if (n < ip->cols - ip->curx)
1110     {
1111       SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1112       attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1113 	      1, ip->cols - ip->curx - n);
1114       attrclr(ip, ip->cury, ip->curx, 1, n);
1115     }
1116   while (n--)
1117     SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1118   SUBR_CURSOR(ip, DRAW_CURSOR);
1119 }
1120 
1121 inline static void
1122 ite_clrtoeol(struct ite_softc *ip)
1123 {
1124   int y = ip->cury, x = ip->curx;
1125   if (ip->cols - x > 0)
1126     {
1127       SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1128       attrclr(ip, y, x, 1, ip->cols - x);
1129       SUBR_CURSOR(ip, DRAW_CURSOR);
1130     }
1131 }
1132 
1133 inline static void
1134 ite_clrtobol(struct ite_softc *ip)
1135 {
1136   int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1137   SUBR_CLEAR(ip, y, 0, 1, x);
1138   attrclr(ip, y, 0, 1, x);
1139   SUBR_CURSOR(ip, DRAW_CURSOR);
1140 }
1141 
1142 inline static void
1143 ite_clrline(struct ite_softc *ip)
1144 {
1145   int y = ip->cury;
1146   SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1147   attrclr(ip, y, 0, 1, ip->cols);
1148   SUBR_CURSOR(ip, DRAW_CURSOR);
1149 }
1150 
1151 
1152 
1153 inline static void
1154 ite_clrtoeos(struct ite_softc *ip)
1155 {
1156   ite_clrtoeol(ip);
1157   if (ip->cury < ip->rows - 1)
1158     {
1159       SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1160       attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1161       SUBR_CURSOR(ip, DRAW_CURSOR);
1162     }
1163 }
1164 
1165 inline static void
1166 ite_clrtobos(struct ite_softc *ip)
1167 {
1168   ite_clrtobol(ip);
1169   if (ip->cury > 0)
1170     {
1171       SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1172       attrclr(ip, 0, 0, ip->cury, ip->cols);
1173       SUBR_CURSOR(ip, DRAW_CURSOR);
1174     }
1175 }
1176 
1177 inline static void
1178 ite_clrscreen(struct ite_softc *ip)
1179 {
1180   SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1181   attrclr(ip, 0, 0, ip->rows, ip->cols);
1182   SUBR_CURSOR(ip, DRAW_CURSOR);
1183 }
1184 
1185 
1186 
1187 inline static void
1188 ite_dnline(struct ite_softc *ip, int n)
1189 {
1190   /* interesting.. if the cursor is outside the scrolling
1191      region, this command is simply ignored.. */
1192   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1193     return;
1194 
1195   n = min(n, ip->bottom_margin + 1 - ip->cury);
1196   if (n <= ip->bottom_margin - ip->cury)
1197     {
1198       SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1199       attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1200 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1201     }
1202   SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1203   attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1204   SUBR_CURSOR(ip, DRAW_CURSOR);
1205 }
1206 
1207 inline static void
1208 ite_inline(struct ite_softc *ip, int n)
1209 {
1210   /* interesting.. if the cursor is outside the scrolling
1211      region, this command is simply ignored.. */
1212   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1213     return;
1214 
1215   n = min(n, ip->bottom_margin + 1 - ip->cury);
1216   if (n <= ip->bottom_margin - ip->cury)
1217     {
1218       SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1219       attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1220 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1221     }
1222   SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1223   attrclr(ip, ip->cury, 0, n, ip->cols);
1224   SUBR_CURSOR(ip, DRAW_CURSOR);
1225 }
1226 
1227 inline static void
1228 ite_lf(struct ite_softc *ip)
1229 {
1230   ++ip->cury;
1231   if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows))
1232     {
1233       ip->cury--;
1234       SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1235       ite_clrline(ip);
1236     }
1237   SUBR_CURSOR(ip, MOVE_CURSOR);
1238   clr_attr(ip, ATTR_INV);
1239 }
1240 
1241 inline static void
1242 ite_crlf(struct ite_softc *ip)
1243 {
1244   ip->curx = 0;
1245   ite_lf (ip);
1246 }
1247 
1248 inline static void
1249 ite_cr(struct ite_softc *ip)
1250 {
1251   if (ip->curx)
1252     {
1253       ip->curx = 0;
1254       SUBR_CURSOR(ip, MOVE_CURSOR);
1255     }
1256 }
1257 
1258 inline static void
1259 ite_rlf(struct ite_softc *ip)
1260 {
1261   ip->cury--;
1262   if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1))
1263     {
1264       ip->cury++;
1265       SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1266       ite_clrline(ip);
1267     }
1268   SUBR_CURSOR(ip, MOVE_CURSOR);
1269   clr_attr(ip, ATTR_INV);
1270 }
1271 
1272 inline static int
1273 atoi(const char *cp)
1274 {
1275   int n;
1276 
1277   for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1278     n = n * 10 + *cp - '0';
1279 
1280   return n;
1281 }
1282 
1283 inline static int
1284 ite_argnum(struct ite_softc *ip)
1285 {
1286   char ch;
1287   int n;
1288 
1289   /* convert argument string into number */
1290   if (ip->ap == ip->argbuf)
1291     return 1;
1292   ch = *ip->ap;
1293   *ip->ap = 0;
1294   n = atoi (ip->argbuf);
1295   *ip->ap = ch;
1296 
1297   return n;
1298 }
1299 
1300 inline static int
1301 ite_zargnum(struct ite_softc *ip)
1302 {
1303   char ch;
1304   int n;
1305 
1306   /* convert argument string into number */
1307   if (ip->ap == ip->argbuf)
1308     return 0;
1309   ch = *ip->ap;
1310   *ip->ap = 0;
1311   n = atoi (ip->argbuf);
1312   *ip->ap = ch;
1313 
1314   return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1315 }
1316 
1317 void
1318 ite_putstr(const char *s, int len, dev_t dev)
1319 {
1320 	struct ite_softc *ip;
1321 	int i;
1322 
1323 	ip = getitesp(dev);
1324 
1325 	/* XXX avoid problems */
1326 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1327 	  	return;
1328 
1329 	SUBR_CURSOR(ip, START_CURSOROPT);
1330 	for (i = 0; i < len; i++)
1331 		if (s[i])
1332 			iteputchar(s[i], ip);
1333 	SUBR_CURSOR(ip, END_CURSOROPT);
1334 }
1335 
1336 static void
1337 iteprecheckwrap(struct ite_softc *ip)
1338 {
1339 	if (ip->auto_wrap && ip->curx == ip->cols) {
1340 		ip->curx = 0;
1341 		clr_attr(ip, ATTR_INV);
1342 		if (++ip->cury >= ip->bottom_margin + 1) {
1343 			ip->cury = ip->bottom_margin;
1344 			SUBR_CURSOR(ip, MOVE_CURSOR);
1345 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1346 			ite_clrtoeol(ip);
1347 		} else
1348 			SUBR_CURSOR(ip, MOVE_CURSOR);
1349 	}
1350 }
1351 
1352 static void
1353 itecheckwrap(struct ite_softc *ip)
1354 {
1355 #if 0
1356 	if (++ip->curx == ip->cols) {
1357 		if (ip->auto_wrap) {
1358 			ip->curx = 0;
1359 			clr_attr(ip, ATTR_INV);
1360 			if (++ip->cury >= ip->bottom_margin + 1) {
1361 				ip->cury = ip->bottom_margin;
1362 				SUBR_CURSOR(ip, MOVE_CURSOR);
1363 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1364 				ite_clrtoeol(ip);
1365 				return;
1366 			}
1367 		} else
1368 			/* stay there if no autowrap.. */
1369 			ip->curx--;
1370 	}
1371 #else
1372 	if (ip->curx < ip->cols) {
1373 		ip->curx++;
1374 		SUBR_CURSOR(ip, MOVE_CURSOR);
1375 	}
1376 #endif
1377 }
1378 
1379 void
1380 iteputchar(register int c, struct ite_softc *ip)
1381 {
1382 	struct tty *kbd_tty;
1383 	int n, x, y;
1384 	char *cp;
1385 
1386 	if (kbd_ite == NULL)
1387 		kbd_tty = NULL;
1388 	else
1389 		kbd_tty = kbd_ite->tp;
1390 
1391 	if (ip->escape) {
1392 		switch (ip->escape) {
1393 		case ESC:
1394 			switch (c) {
1395 				/*
1396 				 * first 7bit equivalents for the
1397 				 * 8bit control characters
1398 				 */
1399 			case 'D':
1400 				c = IND;
1401 				ip->escape = 0;
1402 				break;
1403 				/*
1404 				 * and fall into the next
1405 				 * switch below (same for all `break')
1406 				 */
1407 			case 'E':
1408 				c = NEL;
1409 				ip->escape = 0;
1410 				break;
1411 			case 'H':
1412 				c = HTS;
1413 				ip->escape = 0;
1414 				break;
1415 			case 'M':
1416 				c = RI;
1417 				ip->escape = 0;
1418 				break;
1419 			case 'N':
1420 				c = SS2;
1421 				ip->escape = 0;
1422 				break;
1423 			case 'O':
1424 				c = SS3;
1425 				ip->escape = 0;
1426 				break;
1427 			case 'P':
1428 				c = DCS;
1429 				ip->escape = 0;
1430 				break;
1431 			case '[':
1432 				c = CSI;
1433 				ip->escape = 0;
1434 				break;
1435 			case '\\':
1436 				c = ST;
1437 				ip->escape = 0;
1438 				break;
1439 			case ']':
1440 				c = OSC;
1441 				ip->escape = 0;
1442 				break;
1443 			case '^':
1444 				c = PM;
1445 				ip->escape = 0;
1446 				break;
1447 			case '_':
1448 				c = APC;
1449 				ip->escape = 0;
1450 				break;
1451 				/* introduces 7/8bit control */
1452 			case ' ':
1453 				/* can be followed by either F or G */
1454 				ip->escape = ' ';
1455 				break;
1456 			/*
1457 			 * a lot of character set selections, not yet
1458 			 * used... 94-character sets:
1459 			 */
1460 			case '(':	/* G0 */
1461 			case ')':	/* G1 */
1462 				ip->escape = c;
1463 				return;
1464 			case '*':	/* G2 */
1465 			case '+':	/* G3 */
1466 			case 'B':	/* ASCII */
1467 			case 'A':	/* ISO latin 1 */
1468 			case '<':	/* user preferred suplemental */
1469 			case '0':	/* dec special graphics */
1470 			/*
1471 			 * 96-character sets:
1472 			 */
1473 			case '-':	/* G1 */
1474 			case '.':	/* G2 */
1475 			case '/':	/* G3 */
1476 			/*
1477 			 * national character sets:
1478 			 */
1479 			case '4':	/* dutch */
1480 			case '5':
1481 			case 'C':	/* finnish */
1482 			case 'R':	/* french */
1483 			case 'Q':	/* french canadian */
1484 			case 'K':	/* german */
1485 			case 'Y':	/* italian */
1486 			case '6':	/* norwegian/danish */
1487 				/*
1488 				 * note: %5 and %6 are not supported (two
1489 				 * chars..)
1490 				 */
1491 				ip->escape = 0;
1492 				/* just ignore for now */
1493 				return;
1494 			/*
1495 			 * locking shift modes (as you might guess, not
1496 			 * yet supported..)
1497 			 */
1498 			case '`':
1499 				ip->GR = ip->G1;
1500 				ip->escape = 0;
1501 				return;
1502 			case 'n':
1503 				ip->GL = ip->G2;
1504 				ip->escape = 0;
1505 				return;
1506 			case '}':
1507 				ip->GR = ip->G2;
1508 				ip->escape = 0;
1509 				return;
1510 			case 'o':
1511 				ip->GL = ip->G3;
1512 				ip->escape = 0;
1513 				return;
1514 			case '|':
1515 				ip->GR = ip->G3;
1516 				ip->escape = 0;
1517 				return;
1518 			case '#':
1519 				/* font width/height control */
1520 				ip->escape = '#';
1521 				return;
1522 			case 'c':
1523 				/* hard terminal reset .. */
1524 				ite_reset(ip);
1525 				SUBR_CURSOR(ip, MOVE_CURSOR);
1526 				ip->escape = 0;
1527 				return;
1528 			case '7':
1529 				ip->save_curx = ip->curx;
1530 				ip->save_cury = ip->cury;
1531 				ip->save_attribute = ip->attribute;
1532 				ip->escape = 0;
1533 				return;
1534 			case '8':
1535 				ip->curx = ip->save_curx;
1536 				ip->cury = ip->save_cury;
1537 				ip->attribute = ip->save_attribute;
1538 				SUBR_CURSOR(ip, MOVE_CURSOR);
1539 				ip->escape = 0;
1540 				return;
1541 			case '=':
1542 				ip->keypad_appmode = 1;
1543 				ip->escape = 0;
1544 				return;
1545 			case '>':
1546 				ip->keypad_appmode = 0;
1547 				ip->escape = 0;
1548 				return;
1549 			case 'Z':	/* request ID */
1550 				/* XXX not clean */
1551 				if (ip->emul_level == EMUL_VT100)
1552 					ite_sendstr("\033[?61;0c");
1553 				else
1554 					ite_sendstr("\033[?63;0c");
1555 				ip->escape = 0;
1556 				return;
1557 			default:
1558 				/*
1559 				 * default catch all for not recognized ESC
1560 				 * sequences
1561 				 */
1562 				ip->escape = 0;
1563 				return;
1564 			}
1565 			break;
1566 		case '(':
1567 		case ')':
1568 			ip->escape = 0;
1569 			return;
1570 		case ' ':
1571 			switch (c) {
1572 			case 'F':
1573 				ip->eightbit_C1 = 0;
1574 				ip->escape = 0;
1575 				return;
1576 			case 'G':
1577 				ip->eightbit_C1 = 1;
1578 				ip->escape = 0;
1579 				return;
1580 			default:
1581 				/* not supported */
1582 				ip->escape = 0;
1583 				return;
1584 			}
1585 			break;
1586 		case '#':
1587 			switch (c) {
1588 			case '5':
1589 				/* single height, single width */
1590 				ip->escape = 0;
1591 				return;
1592 			case '6':
1593 				/* double width, single height */
1594 				ip->escape = 0;
1595 				return;
1596 			case '3':
1597 				/* top half */
1598 				ip->escape = 0;
1599 				return;
1600 			case '4':
1601 				/* bottom half */
1602 				ip->escape = 0;
1603 				return;
1604 			case '8':
1605 				/* screen alignment pattern... */
1606 				alignment_display(ip);
1607 				ip->escape = 0;
1608 				return;
1609 			default:
1610 				ip->escape = 0;
1611 				return;
1612 			}
1613 			break;
1614 		case CSI:
1615 			/* the biggie... */
1616 			switch (c) {
1617 			case '0':
1618 			case '1':
1619 			case '2':
1620 			case '3':
1621 			case '4':
1622 			case '5':
1623 			case '6':
1624 			case '7':
1625 			case '8':
1626 			case '9':
1627 			case ';':
1628 			case '\"':
1629 			case '$':
1630 			case '>':
1631 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1632 					*ip->ap++ = c;
1633 				return;
1634 			case BS:
1635 				/*
1636 				 * you wouldn't believe such perversion is
1637 				 * possible? it is.. BS is allowed in between
1638 				 * cursor sequences (at least), according to
1639 				 * vttest..
1640 				 */
1641 				if (--ip->curx < 0)
1642 					ip->curx = 0;
1643 				else
1644 					SUBR_CURSOR(ip, MOVE_CURSOR);
1645 				break;
1646 			case 'p':
1647 				*ip->ap = 0;
1648 				if (!strncmp(ip->argbuf, "61\"", 3))
1649 					ip->emul_level = EMUL_VT100;
1650 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1651 				    || !strncmp(ip->argbuf, "62;1\"", 5))
1652 					ip->emul_level = EMUL_VT300_7;
1653 				else
1654 					ip->emul_level = EMUL_VT300_8;
1655 				ip->escape = 0;
1656 				return;
1657 			case '?':
1658 				*ip->ap = 0;
1659 				ip->escape = '?';
1660 				ip->ap = ip->argbuf;
1661 				return;
1662 			case 'c':
1663 				*ip->ap = 0;
1664 				if (ip->argbuf[0] == '>') {
1665 					ite_sendstr("\033[>24;0;0;0c");
1666 				} else
1667 					switch (ite_zargnum(ip)) {
1668 					case 0:
1669 						/*
1670 						 * primary DA request, send
1671 						 * primary DA response
1672 						 */
1673 						if (ip->emul_level
1674 						    == EMUL_VT100)
1675 							ite_sendstr(
1676 							    "\033[?1;1c");
1677 						else
1678 							ite_sendstr(
1679 							    "\033[?63;1c");
1680 						break;
1681 					}
1682 				ip->escape = 0;
1683 				return;
1684 			case 'n':
1685 				switch (ite_zargnum(ip)) {
1686 				case 5:
1687 					/* no malfunction */
1688 					ite_sendstr("\033[0n");
1689 					break;
1690 				case 6:
1691 					/* cursor position report */
1692 					sprintf(ip->argbuf, "\033[%d;%dR",
1693 					    ip->cury + 1, ip->curx + 1);
1694 					ite_sendstr(ip->argbuf);
1695 					break;
1696 				}
1697 				ip->escape = 0;
1698 				return;
1699 			case 'x':
1700 				switch (ite_zargnum(ip)) {
1701 				case 0:
1702 					/* Fake some terminal parameters.  */
1703 					ite_sendstr("\033[2;1;1;112;112;1;0x");
1704 					break;
1705 				case 1:
1706 					ite_sendstr("\033[3;1;1;112;112;1;0x");
1707 					break;
1708 				}
1709 				ip->escape = 0;
1710 				return;
1711 			case 'g':
1712 				switch (ite_zargnum(ip)) {
1713 				case 0:
1714 					if (ip->curx < ip->cols)
1715 						ip->tabs[ip->curx] = 0;
1716 					break;
1717 				case 3:
1718 					for (n = 0; n < ip->cols; n++)
1719 						ip->tabs[n] = 0;
1720 					break;
1721 				}
1722 				ip->escape = 0;
1723 				return;
1724 			case 'h':
1725 			case 'l':
1726 				n = ite_zargnum(ip);
1727 				switch (n) {
1728 				case 4:
1729 					/* insert/replace mode */
1730 					ip->imode = (c == 'h');
1731 					break;
1732 				case 20:
1733 					ip->linefeed_newline = (c == 'h');
1734 					break;
1735 				}
1736 				ip->escape = 0;
1737 				return;
1738 			case 'M':
1739 				ite_dnline(ip, ite_argnum(ip));
1740 				ip->escape = 0;
1741 				return;
1742 			case 'L':
1743 				ite_inline(ip, ite_argnum(ip));
1744 				ip->escape = 0;
1745 				return;
1746 			case 'P':
1747 				ite_dnchar(ip, ite_argnum(ip));
1748 				ip->escape = 0;
1749 				return;
1750 			case '@':
1751 				ite_inchar(ip, ite_argnum(ip));
1752 				ip->escape = 0;
1753 				return;
1754 			case 'G':
1755 				/*
1756 				 * this one was *not* in my vt320 manual but in
1757 				 * a vt320 termcap entry.. who is right? It's
1758 				 * supposed to set the horizontal cursor
1759 				 * position.
1760 				 */
1761 				*ip->ap = 0;
1762 				x = atoi(ip->argbuf);
1763 				if (x)
1764 					x--;
1765 				ip->curx = min(x, ip->cols - 1);
1766 				ip->escape = 0;
1767 				SUBR_CURSOR(ip, MOVE_CURSOR);
1768 				clr_attr(ip, ATTR_INV);
1769 				return;
1770 			case 'd':
1771 				/*
1772 				 * same thing here, this one's for setting the
1773 				 * absolute vertical cursor position. Not
1774 				 * documented...
1775 				 */
1776 				*ip->ap = 0;
1777 				y = atoi(ip->argbuf);
1778 				if (y)
1779 					y--;
1780 				if (ip->inside_margins)
1781 					y += ip->top_margin;
1782 				ip->cury = min(y, ip->rows - 1);
1783 				ip->escape = 0;
1784 				snap_cury(ip);
1785 				SUBR_CURSOR(ip, MOVE_CURSOR);
1786 				clr_attr(ip, ATTR_INV);
1787 				return;
1788 			case 'H':
1789 			case 'f':
1790 				*ip->ap = 0;
1791 				y = atoi(ip->argbuf);
1792 				x = 0;
1793 				cp = strchr(ip->argbuf, ';');
1794 				if (cp)
1795 					x = atoi(cp + 1);
1796 				if (x)
1797 					x--;
1798 				if (y)
1799 					y--;
1800 				if (ip->inside_margins)
1801 					y += ip->top_margin;
1802 				ip->cury = min(y, ip->rows - 1);
1803 				ip->curx = min(x, ip->cols - 1);
1804 				ip->escape = 0;
1805 				snap_cury(ip);
1806 				SUBR_CURSOR(ip, MOVE_CURSOR);
1807 				clr_attr(ip, ATTR_INV);
1808 				return;
1809 			case 'A':
1810 				n = ite_argnum(ip);
1811 				n = ip->cury - (n ? n : 1);
1812 				if (n < 0)
1813 					n = 0;
1814 				if (ip->inside_margins)
1815 					n = max(ip->top_margin, n);
1816 				else if (n == ip->top_margin - 1)
1817 					/*
1818 					 * allow scrolling outside region, but
1819 					 * don't scroll out of active region
1820 					 * without explicit CUP
1821 					 */
1822 					n = ip->top_margin;
1823 				ip->cury = n;
1824 				ip->escape = 0;
1825 				SUBR_CURSOR(ip, MOVE_CURSOR);
1826 				clr_attr(ip, ATTR_INV);
1827 				return;
1828 			case 'B':
1829 				n = ite_argnum(ip);
1830 				n = ip->cury + (n ? n : 1);
1831 				n = min(ip->rows - 1, n);
1832 				if (ip->inside_margins)
1833 					n = min(ip->bottom_margin, n);
1834 				else if (n == ip->bottom_margin + 1)
1835 					/*
1836 					 * allow scrolling outside region, but
1837 					 * don't scroll out of active region
1838 					 * without explicit CUP
1839 					 */
1840 					n = ip->bottom_margin;
1841 				ip->cury = n;
1842 				ip->escape = 0;
1843 				SUBR_CURSOR(ip, MOVE_CURSOR);
1844 				clr_attr(ip, ATTR_INV);
1845 				return;
1846 			case 'C':
1847 				n = ite_argnum(ip);
1848 				n = n ? n : 1;
1849 				ip->curx = min(ip->curx + n, ip->cols - 1);
1850 				ip->escape = 0;
1851 				SUBR_CURSOR(ip, MOVE_CURSOR);
1852 				clr_attr(ip, ATTR_INV);
1853 				return;
1854 			case 'D':
1855 				n = ite_argnum(ip);
1856 				n = n ? n : 1;
1857 				n = ip->curx - n;
1858 				ip->curx = n >= 0 ? n : 0;
1859 				ip->escape = 0;
1860 				SUBR_CURSOR(ip, MOVE_CURSOR);
1861 				clr_attr(ip, ATTR_INV);
1862 				return;
1863 			case 'J':
1864 				*ip->ap = 0;
1865 				n = ite_zargnum(ip);
1866 				if (n == 0)
1867 					ite_clrtoeos(ip);
1868 				else if (n == 1)
1869 					ite_clrtobos(ip);
1870 				else if (n == 2)
1871 					ite_clrscreen(ip);
1872 				ip->escape = 0;
1873 				return;
1874 			case 'K':
1875 				n = ite_zargnum(ip);
1876 				if (n == 0)
1877 					ite_clrtoeol(ip);
1878 				else if (n == 1)
1879 					ite_clrtobol(ip);
1880 				else if (n == 2)
1881 					ite_clrline(ip);
1882 				ip->escape = 0;
1883 				return;
1884 			case 'X':
1885 				n = ite_argnum(ip) - 1;
1886 				n = min(n, ip->cols - 1 - ip->curx);
1887 				for (; n >= 0; n--) {
1888 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1889 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1890 				}
1891 				ip->escape = 0;
1892 				return;
1893 			case '}':
1894 			case '`':
1895 				/* status line control */
1896 				ip->escape = 0;
1897 				return;
1898 			case 'r':
1899 				*ip->ap = 0;
1900 				x = atoi(ip->argbuf);
1901 				x = x ? x : 1;
1902 				y = ip->rows;
1903 				cp = strchr(ip->argbuf, ';');
1904 				if (cp) {
1905 					y = atoi(cp + 1);
1906 					y = y ? y : ip->rows;
1907 				}
1908 				if (y - x < 2) {
1909 					/*
1910 					 * if illegal scrolling region, reset
1911 					 * to defaults
1912 					 */
1913 					x = 1;
1914 					y = ip->rows;
1915 				}
1916 				x--;
1917 				y--;
1918 				ip->top_margin = min(x, ip->rows - 1);
1919 				ip->bottom_margin = min(y, ip->rows - 1);
1920 				if (ip->inside_margins) {
1921 					ip->cury = ip->top_margin;
1922 					ip->curx = 0;
1923 					SUBR_CURSOR(ip, MOVE_CURSOR);
1924 				}
1925 				ip->escape = 0;
1926 				return;
1927 			case 'm':
1928 				/* big attribute setter/resetter */
1929 				{ char *cp;
1930 				*ip->ap = 0;
1931 				/* kludge to make CSIm work (== CSI0m) */
1932 				if (ip->ap == ip->argbuf)
1933 					ip->ap++;
1934 				for (cp = ip->argbuf; cp < ip->ap;) {
1935 					switch (*cp) {
1936 					case 0:
1937 					case '0':
1938 						clr_attr(ip, ATTR_ALL);
1939 						cp++;
1940 						break;
1941 
1942 					case '1':
1943 						set_attr(ip, ATTR_BOLD);
1944 						cp++;
1945 						break;
1946 
1947 					case '2':
1948 						switch (cp[1]) {
1949 						case '2':
1950 							clr_attr(ip, ATTR_BOLD);
1951 							cp += 2;
1952 							break;
1953 
1954 						case '4':
1955 							clr_attr(ip, ATTR_UL);
1956 							cp += 2;
1957 							break;
1958 
1959 						case '5':
1960 							clr_attr(ip, ATTR_BLINK);
1961 							cp += 2;
1962 							break;
1963 
1964 						case '7':
1965 							clr_attr(ip, ATTR_INV);
1966 							cp += 2;
1967 							break;
1968 
1969 						default:
1970 							cp++;
1971 							break;
1972 						}
1973 						break;
1974 
1975 					case '4':
1976 						set_attr(ip, ATTR_UL);
1977 						cp++;
1978 						break;
1979 
1980 					case '5':
1981 						set_attr(ip, ATTR_BLINK);
1982 						cp++;
1983 						break;
1984 
1985 					case '7':
1986 						set_attr(ip, ATTR_INV);
1987 						cp++;
1988 						break;
1989 
1990 					default:
1991 						cp++;
1992 						break;
1993 					}
1994 				}
1995 				ip->escape = 0;
1996 				return; }
1997 			case 'u':
1998 				/* DECRQTSR */
1999 				ite_sendstr("\033P\033\\");
2000 				ip->escape = 0;
2001 				return;
2002 			default:
2003 				ip->escape = 0;
2004 				return;
2005 			}
2006 			break;
2007 		case '?':	/* CSI ? */
2008 			switch (c) {
2009 			case '0':
2010 			case '1':
2011 			case '2':
2012 			case '3':
2013 			case '4':
2014 			case '5':
2015 			case '6':
2016 			case '7':
2017 			case '8':
2018 			case '9':
2019 			case ';':
2020 			case '\"':
2021 			case '$':
2022 				/*
2023 				 * Don't fill the last character;
2024 				 * it's needed.
2025 				 * XXX yeah, where ??
2026 				 */
2027 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2028 					*ip->ap++ = c;
2029 				return;
2030 			case 'n':
2031 				*ip->ap = 0;
2032 				if (ip->ap == &ip->argbuf[2]) {
2033 					if (!strncmp(ip->argbuf, "15", 2))
2034 						/* printer status: no printer */
2035 						ite_sendstr("\033[13n");
2036 
2037 					else if (!strncmp(ip->argbuf, "25", 2))
2038 						/* udk status */
2039 						ite_sendstr("\033[20n");
2040 
2041 					else if (!strncmp(ip->argbuf, "26", 2))
2042 						/* keyboard dialect: US */
2043 						ite_sendstr("\033[27;1n");
2044 				}
2045 				ip->escape = 0;
2046 				return;
2047 			case 'h':
2048 			case 'l':
2049 				n = ite_zargnum(ip);
2050 				switch (n) {
2051 				case 1:
2052 					ip->cursor_appmode = (c == 'h');
2053 					break;
2054 				case 3:
2055 					/* 132/80 columns (132 == 'h') */
2056 					break;
2057 				case 4:	/* smooth scroll */
2058 					break;
2059 				case 5:
2060 					/*
2061 					 * light background (=='h') /dark
2062 					 * background(=='l')
2063 					 */
2064 					break;
2065 				case 6:	/* origin mode */
2066 					ip->inside_margins = (c == 'h');
2067 					ip->curx = 0;
2068 					ip->cury = ip->inside_margins ?
2069 					    ip->top_margin : 0;
2070 					SUBR_CURSOR(ip, MOVE_CURSOR);
2071 					break;
2072 				case 7:	/* auto wraparound */
2073 					ip->auto_wrap = (c == 'h');
2074 					break;
2075 				case 8:	/* keyboard repeat */
2076 					ip->key_repeat = (c == 'h');
2077 					break;
2078 				case 20:	/* newline mode */
2079 					ip->linefeed_newline = (c == 'h');
2080 					break;
2081 				case 25:	/* cursor on/off */
2082 					SUBR_CURSOR(ip, (c == 'h') ?
2083 					    DRAW_CURSOR : ERASE_CURSOR);
2084 					break;
2085 				}
2086 				ip->escape = 0;
2087 				return;
2088 			default:
2089 				ip->escape = 0;
2090 				return;
2091 			}
2092 			break;
2093 		default:
2094 			ip->escape = 0;
2095 			return;
2096 		}
2097 	}
2098 	switch (c) {
2099 	case VT:		/* VT is treated like LF */
2100 	case FF:		/* so is FF */
2101 	case LF:
2102 		/*
2103 		 * cr->crlf distinction is done here, on output, not on input!
2104 		 */
2105 		if (ip->linefeed_newline)
2106 			ite_crlf(ip);
2107 		else
2108 			ite_lf(ip);
2109 		break;
2110 	case CR:
2111 		ite_cr(ip);
2112 		break;
2113 	case BS:
2114 		if (--ip->curx < 0)
2115 			ip->curx = 0;
2116 		else
2117 			SUBR_CURSOR(ip, MOVE_CURSOR);
2118 		break;
2119 	case HT:
2120 		for (n = ip->curx + 1; n < ip->cols; n++) {
2121 			if (ip->tabs[n]) {
2122 				ip->curx = n;
2123 				SUBR_CURSOR(ip, MOVE_CURSOR);
2124 				break;
2125 			}
2126 		}
2127 		break;
2128 	case BEL:
2129 		if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty
2130 #ifdef DRACO
2131 		    && !is_draco()
2132 #endif
2133 		    )
2134 			ite_bell();
2135 		break;
2136 	case SO:
2137 		ip->GL = ip->G1;
2138 		break;
2139 	case SI:
2140 		ip->GL = ip->G0;
2141 		break;
2142 	case ENQ:
2143 		/* send answer-back message !! */
2144 		break;
2145 	case CAN:
2146 		ip->escape = 0;	/* cancel any escape sequence in progress */
2147 		break;
2148 	case SUB:
2149 		ip->escape = 0;	/* dito, but see below */
2150 		/* should also display a reverse question mark!! */
2151 		break;
2152 	case ESC:
2153 		ip->escape = ESC;
2154 		break;
2155 	/*
2156 	 * now it gets weird.. 8bit control sequences..
2157 	 */
2158 	case IND:
2159 		/* index: move cursor down, scroll */
2160 		ite_lf(ip);
2161 		break;
2162 	case NEL:
2163 		/* next line. next line, first pos. */
2164 		ite_crlf(ip);
2165 		break;
2166 	case HTS:
2167 		/* set horizontal tab */
2168 		if (ip->curx < ip->cols)
2169 			ip->tabs[ip->curx] = 1;
2170 		break;
2171 	case RI:
2172 		/* reverse index */
2173 		ite_rlf(ip);
2174 		break;
2175 	case SS2:
2176 		/* go into G2 for one character */
2177 		/* not yet supported */
2178 		break;
2179 	case SS3:
2180 		/* go into G3 for one character */
2181 		break;
2182 	case DCS:
2183 		/* device control string introducer */
2184 		ip->escape = DCS;
2185 		ip->ap = ip->argbuf;
2186 		break;
2187 	case CSI:
2188 		/* control sequence introducer */
2189 		ip->escape = CSI;
2190 		ip->ap = ip->argbuf;
2191 		break;
2192 	case ST:
2193 		/* string terminator */
2194 		/* ignore, if not used as terminator */
2195 		break;
2196 	case OSC:
2197 		/*
2198 		 * introduces OS command. Ignore everything
2199 		 * upto ST
2200 		 */
2201 		ip->escape = OSC;
2202 		break;
2203 	case PM:
2204 		/* privacy message, ignore everything upto ST */
2205 		ip->escape = PM;
2206 		break;
2207 	case APC:
2208 		/*
2209 		 * application program command, ignore * everything upto ST
2210 		 */
2211 		ip->escape = APC;
2212 		break;
2213 	default:
2214 		if ((c & 0x7f) < ' ' || c == DEL)
2215 			break;
2216 		if (ip->imode)
2217 			ite_inchar(ip, 1);
2218 		iteprecheckwrap(ip);
2219 #ifdef DO_WEIRD_ATTRIBUTES
2220 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2221 			attrset(ip, ATTR_INV);
2222 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2223 		} else
2224 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2225 #else
2226 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2227 #endif
2228 		SUBR_CURSOR(ip, DRAW_CURSOR);
2229 		itecheckwrap(ip);
2230 		break;
2231 	}
2232 }
2233 
2234