xref: /netbsd-src/sys/arch/x68k/dev/ite.c (revision 946379e7b37692fc43f68eb0d1c10daa0a7f3b6c)
1 /*	$NetBSD: ite.c,v 1.63 2014/07/25 08:10:35 dholland Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 University of Utah.
5  * Copyright (c) 1990 The Regents of the University of California.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * the Systems Programming Group of the University of Utah Computer
10  * Science Department.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * from: Utah $Hdr: ite.c 1.1 90/07/09$
37  *
38  *	@(#)ite.c	7.6 (Berkeley) 5/16/91
39  */
40 
41 /*
42  * ite - bitmaped terminal.
43  * Supports VT200, a few terminal features will be unavailable until
44  * the system actually probes the device (i.e. not after consinit())
45  */
46 
47 #include <sys/cdefs.h>
48 __KERNEL_RCSID(0, "$NetBSD: ite.c,v 1.63 2014/07/25 08:10:35 dholland Exp $");
49 
50 #include "ite.h"
51 #if NITE > 0
52 
53 #include "bell.h"
54 #include "kbd.h"
55 
56 #include "opt_ite.h"
57 
58 #include <sys/param.h>
59 #include <sys/conf.h>
60 #include <sys/proc.h>
61 #include <sys/ioctl.h>
62 #include <sys/tty.h>
63 #include <sys/systm.h>
64 #include <sys/device.h>
65 #include <sys/malloc.h>
66 #include <sys/kauth.h>
67 
68 #include <machine/cpu.h>
69 #include <machine/kbio.h>
70 #include <machine/bus.h>
71 #include <machine/autoconf.h>
72 #include <machine/grfioctl.h>
73 #include <machine/iteioctl.h>
74 
75 #include <arch/x68k/dev/grfvar.h>
76 #include <arch/x68k/dev/itevar.h>
77 #include <arch/x68k/dev/kbdmap.h>
78 #include <arch/x68k/dev/mfp.h>
79 #if NBELL > 0
80 void opm_bell(void);
81 #endif
82 
83 #define SUBR_INIT(ip)		ip->isw->ite_init(ip)
84 #define SUBR_DEINIT(ip)		ip->isw->ite_deinit(ip)
85 #define SUBR_PUTC(ip,c,dy,dx,m)	ip->isw->ite_putc(ip,c,dy,dx,m)
86 #define SUBR_CURSOR(ip,flg)	ip->isw->ite_cursor(ip,flg)
87 #define SUBR_CLEAR(ip,sy,sx,h,w)	ip->isw->ite_clear(ip,sy,sx,h,w)
88 #define SUBR_SCROLL(ip,sy,sx,count,dir)	\
89     ip->isw->ite_scroll(ip,sy,sx,count,dir)
90 
91 struct consdev;
92 
93 inline static void itesendch(int);
94 inline static void alignment_display(struct ite_softc *);
95 inline static void snap_cury(struct ite_softc *);
96 inline static void ite_dnchar(struct ite_softc *, int);
97 static void ite_inchar(struct ite_softc *,	int);
98 inline static void ite_clrtoeol(struct ite_softc *);
99 inline static void ite_clrtobol(struct ite_softc *);
100 inline static void ite_clrline(struct ite_softc *);
101 inline static void ite_clrtoeos(struct ite_softc *);
102 inline static void ite_clrtobos(struct ite_softc *);
103 inline static void ite_clrscreen(struct ite_softc *);
104 inline static void ite_dnline(struct ite_softc *, int);
105 inline static void ite_inline(struct ite_softc *, int);
106 inline static void ite_index(struct ite_softc *);
107 inline static void ite_lf(struct ite_softc *);
108 inline static void ite_crlf(struct ite_softc *);
109 inline static void ite_cr(struct ite_softc *);
110 inline static void ite_rlf(struct ite_softc *);
111 static void iteprecheckwrap(struct ite_softc *);
112 static void itecheckwrap(struct ite_softc *);
113 static int ite_argnum(struct ite_softc *);
114 static int ite_zargnum(struct ite_softc *);
115 static void ite_sendstr(struct ite_softc *, const char *);
116 inline static int atoi(const char *);
117 void ite_reset(struct ite_softc *);
118 struct ite_softc *getitesp(dev_t);
119 int iteon(dev_t, int);
120 void iteoff(dev_t, int);
121 
122 struct itesw itesw[] = {
123 	{0,	tv_init,	tv_deinit,	0,
124 	 0,	0,		0}
125 };
126 
127 /*
128  * # of chars are output in a single itestart() call.
129  * If this is too big, user processes will be blocked out for
130  * long periods of time while we are emptying the queue in itestart().
131  * If it is too small, console output will be very ragged.
132  */
133 #define ITEBURST 64
134 
135 struct	tty *ite_tty[NITE];
136 struct	ite_softc *kbd_ite = NULL;
137 struct  ite_softc con_itesoftc;
138 struct	device con_itedev;
139 
140 struct  tty *kbd_tty = NULL;
141 
142 int	start_repeat_timeo = 20; /* /100: initial timeout till pressed key repeats */
143 int	next_repeat_timeo  = 3;  /* /100: timeout when repeating for next char */
144 
145 u_char	cons_tabs[MAX_TABS];
146 
147 void	itestart(struct tty *);
148 
149 void iteputchar(int, struct ite_softc *);
150 void ite_putstr(const u_char *, int, dev_t);
151 
152 int itematch(device_t, cfdata_t, void *);
153 void iteattach(device_t, device_t, void *);
154 
155 CFATTACH_DECL_NEW(ite, sizeof(struct ite_softc),
156     itematch, iteattach, NULL, NULL);
157 
158 extern struct cfdriver ite_cd;
159 
160 dev_type_open(iteopen);
161 dev_type_close(iteclose);
162 dev_type_read(iteread);
163 dev_type_write(itewrite);
164 dev_type_ioctl(iteioctl);
165 dev_type_tty(itetty);
166 dev_type_poll(itepoll);
167 
168 const struct cdevsw ite_cdevsw = {
169 	.d_open = iteopen,
170 	.d_close = iteclose,
171 	.d_read = iteread,
172 	.d_write = itewrite,
173 	.d_ioctl = iteioctl,
174 	.d_stop = nostop,
175 	.d_tty = itetty,
176 	.d_poll = itepoll,
177 	.d_mmap = nommap,
178 	.d_kqfilter = ttykqfilter,
179 	.d_discard = nodiscard,
180 	.d_flag = D_TTY
181 };
182 
183 int
184 itematch(device_t parent, cfdata_t cf, void *aux)
185 {
186 	struct grf_softc *gp;
187 
188 	gp = aux;
189 	if (cf->cf_loc[GRFCF_GRFADDR] != gp->g_cfaddr)
190 		return 0;
191 
192 	return 1;
193 }
194 
195 /*
196  * iteinit() is the standard entry point for initialization of
197  * an ite device, it is also called from ite_cninit().
198  */
199 void
200 iteattach(device_t parent, device_t self, void *aux)
201 {
202 	struct ite_softc *ip;
203 	struct grf_softc *gp;
204 
205 	gp = aux;
206 	ip = device_private(self);
207 	ip->device = self;
208 	if(con_itesoftc.grf != NULL
209 		/*&& con_itesoftc.grf->g_unit == gp->g_unit*/) {
210 		/*
211 		 * console reinit copy params over.
212 		 * and console always gets keyboard
213 		 */
214 		memcpy(&ip->grf, &con_itesoftc.grf,
215 		    (char *)&ip[1] - (char *)&ip->grf);
216 		con_itesoftc.grf = NULL;
217 		kbd_ite = ip;
218 	}
219 	ip->grf = gp;
220 	iteinit(device_unit(self)); /* XXX */
221 	aprint_normal(": rows %d cols %d", ip->rows, ip->cols);
222 	if (kbd_ite == NULL)
223 		kbd_ite = ip;
224 	aprint_normal("\n");
225 }
226 
227 struct ite_softc *
228 getitesp(dev_t dev)
229 {
230 
231 	if (x68k_realconfig && con_itesoftc.grf == NULL)
232 		return device_lookup_private(&ite_cd, UNIT(dev));
233 
234 	if (con_itesoftc.grf == NULL)
235 		panic("no ite_softc for console");
236 	return(&con_itesoftc);
237 }
238 
239 void
240 iteinit(dev_t dev)
241 {
242 	struct ite_softc *ip;
243 
244 	ip = getitesp(dev);
245 
246 	if (ip->flags & ITE_INITED)
247 		return;
248 	memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
249 
250 	ip->curx = 0;
251 	ip->cury = 0;
252 	ip->cursorx = 0;
253 	ip->cursory = 0;
254 
255 	ip->isw = &itesw[device_unit(ip->device)]; /* XXX */
256 	SUBR_INIT(ip);
257 	SUBR_CURSOR(ip, DRAW_CURSOR);
258 	if (!ip->tabs)
259 		ip->tabs = malloc(MAX_TABS*sizeof(u_char), M_DEVBUF, M_WAITOK);
260 	ite_reset(ip);
261 	ip->flags |= ITE_INITED;
262 }
263 
264 void
265 ite_config_console(void)
266 {
267 	struct grf_softc *gp = &congrf;
268 
269 	if (con_itesoftc.grf != NULL)
270 		return;
271 	con_itesoftc.grf = gp;
272 	con_itesoftc.tabs = cons_tabs;
273 	con_itesoftc.device = &con_itedev;
274 }
275 
276 /*
277  * Perform functions necessary to setup device as a terminal emulator.
278  */
279 int
280 iteon(dev_t dev, int flag)
281 {
282 	int unit = UNIT(dev);
283 	struct ite_softc *ip;
284 
285 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
286 	    (ip = getitesp(dev)) == NULL || (ip->flags&ITE_ALIVE) == 0)
287 		return(ENXIO);
288 	/* force ite active, overriding graphics mode */
289 	if (flag & 1) {
290 		ip->flags |= ITE_ACTIVE;
291 		ip->flags &= ~(ITE_INGRF|ITE_INITED);
292 	}
293 	/* leave graphics mode */
294 	if (flag & 2) {
295 		ip->flags &= ~ITE_INGRF;
296 		if ((ip->flags & ITE_ACTIVE) == 0)
297 			return(0);
298 	}
299 	ip->flags |= ITE_ACTIVE;
300 	if (ip->flags & ITE_INGRF)
301 		return(0);
302 	iteinit(dev);
303 	if (flag & 2)
304 		ite_reset(ip);
305 #if NKBD > 0
306 	mfp_send_usart(0x49);	/* XXX */
307 #endif
308 	return(0);
309 }
310 
311 /*
312  * "Shut down" device as terminal emulator.
313  * Note that we do not deinit the console device unless forced.
314  * Deinit'ing the console every time leads to a very active
315  * screen when processing /etc/rc.
316  */
317 void
318 iteoff(dev_t dev, int flag)
319 {
320 	int unit = UNIT(dev);
321 	struct ite_softc *ip;
322 
323 	/* XXX check whether when call from grf.c */
324 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
325 	    (ip = getitesp(dev)) == NULL || (ip->flags&ITE_ALIVE) == 0)
326 		return;
327 	if (flag & 2)
328 		ip->flags |= ITE_INGRF;
329 
330 	if ((ip->flags & ITE_ACTIVE) == 0)
331 		return;
332 	if ((flag & 1) ||
333 	    (ip->flags & (ITE_INGRF|ITE_ISCONS|ITE_INITED)) == ITE_INITED)
334 		SUBR_DEINIT(ip);
335 
336 	/*
337 	 * XXX When the system is rebooted with "reboot", init(8)
338 	 * kills the last process to have the console open.
339 	 * If we don't revent the ITE_ACTIVE bit from being
340 	 * cleared, we will never see messages printed during
341 	 * the process of rebooting.
342 	 */
343 	if ((flag & 2) == 0 && (ip->flags & ITE_ISCONS) == 0) {
344 		ip->flags &= ~ITE_ACTIVE;
345 #if NKBD > 0
346 		mfp_send_usart(0x48);	/* XXX */
347 #endif
348 	}
349 }
350 
351 /*
352  * standard entry points to the device.
353  */
354 
355 /* ARGSUSED */
356 int
357 iteopen(dev_t dev, int mode, int devtype, struct lwp *l)
358 {
359 	int unit = UNIT(dev);
360 	struct tty *tp;
361 	struct ite_softc *ip;
362 	int error;
363 	int first = 0;
364 
365 	if (unit >= ite_cd.cd_ndevs || (ip = getitesp(dev)) == NULL)
366 		return (ENXIO);
367 	if (!ite_tty[unit]) {
368 		tp = ite_tty[unit] = tty_alloc();
369 		tty_attach(tp);
370 	} else
371 		tp = ite_tty[unit];
372 	if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
373 		return (EBUSY);
374 	if ((ip->flags & ITE_ACTIVE) == 0) {
375 		error = iteon(dev, 0);
376 		if (error)
377 			return (error);
378 		first = 1;
379 	}
380 	tp->t_oproc = itestart;
381 	tp->t_param = NULL;
382 	tp->t_dev = dev;
383 	if ((tp->t_state&TS_ISOPEN) == 0) {
384 		ttychars(tp);
385 		tp->t_iflag = TTYDEF_IFLAG;
386 		tp->t_oflag = TTYDEF_OFLAG;
387 		tp->t_cflag = TTYDEF_CFLAG;
388 		tp->t_lflag = TTYDEF_LFLAG;
389 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
390 		tp->t_state = TS_ISOPEN|TS_CARR_ON;
391 		ttsetwater(tp);
392 	}
393 	error = (*tp->t_linesw->l_open)(dev, tp);
394 	if (error == 0) {
395 		tp->t_winsize.ws_row = ip->rows;
396 		tp->t_winsize.ws_col = ip->cols;
397 	} else if (first)
398 		iteoff(dev, 0);
399 	return (error);
400 }
401 
402 /*ARGSUSED*/
403 int
404 iteclose(dev_t dev, int flag, int mode, struct lwp *l)
405 {
406 	struct tty *tp = ite_tty[UNIT(dev)];
407 
408 	(*tp->t_linesw->l_close)(tp, flag);
409 	ttyclose(tp);
410 	iteoff(dev, 0);
411 #if 0
412 	tty_free(tp);
413 	ite_tty[UNIT(dev)] = (struct tty *)0;
414 #endif
415 	return(0);
416 }
417 
418 int
419 iteread(dev_t dev, struct uio *uio, int flag)
420 {
421 	struct tty *tp = ite_tty[UNIT(dev)];
422 
423 	return ((*tp->t_linesw->l_read)(tp, uio, flag));
424 }
425 
426 int
427 itewrite(dev_t dev, struct uio *uio, int flag)
428 {
429 	struct tty *tp = ite_tty[UNIT(dev)];
430 
431 	return ((*tp->t_linesw->l_write)(tp, uio, flag));
432 }
433 
434 int
435 itepoll(dev_t dev, int events, struct lwp *l)
436 {
437 	struct tty *tp = ite_tty[UNIT(dev)];
438 
439 	return ((*tp->t_linesw->l_poll)(tp, events, l));
440 }
441 
442 struct tty *
443 itetty(dev_t dev)
444 {
445 
446 	return (ite_tty[UNIT(dev)]);
447 }
448 
449 int
450 iteioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
451 {
452 	struct iterepeat *irp;
453 	struct tty *tp = ite_tty[UNIT(dev)];
454 	int error;
455 
456 	error = (*tp->t_linesw->l_ioctl)(tp, cmd, addr, flag, l);
457 	if (error != EPASSTHROUGH)
458 		return (error);
459 
460 	error = ttioctl(tp, cmd, addr, flag, l);
461 	if (error != EPASSTHROUGH)
462 		return (error);
463 
464 	switch (cmd) {
465 	case ITEIOCSKMAP:
466 		if (addr == 0)
467 			return(EFAULT);
468 		memcpy(&kbdmap, addr, sizeof(struct kbdmap));
469 		return(0);
470 
471 	case ITEIOCGKMAP:
472 		if (addr == NULL)
473 			return(EFAULT);
474 		memcpy(addr, &kbdmap, sizeof(struct kbdmap));
475 		return(0);
476 
477 	case ITEIOCGREPT:
478 		irp = (struct iterepeat *)addr;
479 		irp->start = start_repeat_timeo;
480 		irp->next = next_repeat_timeo;
481 
482 	case ITEIOCSREPT:
483 		irp = (struct iterepeat *)addr;
484 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
485 			return(EINVAL);
486 		start_repeat_timeo = irp->start;
487 		next_repeat_timeo = irp->next;
488 #if x68k
489 	case ITELOADFONT:
490 		if (addr) {
491 			memcpy(kern_font, addr, 4096 /*sizeof(kernel_font)*/);
492 			ite_set_glyph();
493 			return 0;
494 		} else
495 			return EFAULT;
496 
497 	case ITETVCTRL:
498 		if (addr && *(u_int8_t *)addr < 0x40) {
499 			return mfp_send_usart(* (u_int8_t *)addr);
500 		} else {
501 			return EFAULT;
502 		}
503 #endif
504 	}
505 	return (EPASSTHROUGH);
506 }
507 
508 void
509 itestart(struct tty *tp)
510 {
511 	struct clist *rbp;
512 	u_char buf[ITEBURST];
513 	int s, len;
514 
515 	getitesp(tp->t_dev);
516 	/*
517 	 * (Potentially) lower priority.  We only need to protect ourselves
518 	 * from keyboard interrupts since that is all that can affect the
519 	 * state of our tty (kernel printf doesn't go through this routine).
520 	 */
521 	s = spltty();
522 	if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
523 		goto out;
524 	tp->t_state |= TS_BUSY;
525 	rbp = &tp->t_outq;
526 	len = q_to_b(rbp, buf, ITEBURST);
527 	/*splx(s);*/
528 
529 	/* Here is a really good place to implement pre/jumpscroll() */
530 	ite_putstr(buf, len, tp->t_dev);
531 
532 	/*s = spltty();*/
533 	tp->t_state &= ~TS_BUSY;
534 	/* we have characters remaining. */
535 	if (ttypull(tp)) {
536 		tp->t_state |= TS_TIMEOUT;
537 		callout_schedule(&tp->t_rstrt_ch, 1);
538 	}
539 out:
540 	splx(s);
541 }
542 
543 /* XXX called after changes made in underlying grf layer. */
544 /* I want to nuke this */
545 void
546 ite_reinit(dev_t dev)
547 {
548 	struct ite_softc *ip;
549 	int unit = UNIT(dev);
550 
551 	/* XXX check whether when call from grf.c */
552 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
553 	    (ip = getitesp(dev)) == NULL)
554 		return;
555 
556 	ip->flags &= ~ITE_INITED;
557 	iteinit(dev);
558 }
559 
560 void
561 ite_reset(struct ite_softc *ip)
562 {
563 	int i;
564 
565 	ip->curx = 0;
566 	ip->cury = 0;
567 	ip->attribute = 0;
568 	ip->save_curx = 0;
569 	ip->save_cury = 0;
570 	ip->save_attribute = 0;
571 	ip->ap = ip->argbuf;
572 	ip->emul_level = EMUL_VT300_8;
573 	ip->eightbit_C1 = 0;
574 	ip->top_margin = 0;
575 	ip->bottom_margin = ip->rows - 1;
576 	ip->inside_margins = 0; /* origin mode == absolute */
577 	ip->linefeed_newline = 0;
578 	ip->auto_wrap = 1;
579 	ip->cursor_appmode = 0;
580 	ip->keypad_appmode = 0;
581 	ip->imode = 0;
582 	ip->key_repeat = 1;
583 	ip->G0 = CSET_ASCII;
584 	ip->G1 = CSET_JIS1983;
585 	ip->G2 = CSET_JISKANA;
586 	ip->G3 = CSET_JIS1990;
587 	ip->GL = &ip->G0;
588 	ip->GR = &ip->G1;
589 	ip->save_GL = 0;
590 	ip->save_char = 0;
591 	ip->fgcolor = 7;
592 	ip->bgcolor = 0;
593 	for (i = 0; i < ip->cols; i++)
594 		ip->tabs[i] = ((i & 7) == 0);
595 	/* XXX clear screen */
596 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
597 	attrclr(ip, 0, 0, ip->rows, ip->cols);
598 }
599 
600 /* Used in console at startup only */
601 int
602 ite_cnfilter(u_char c)
603 {
604 	static u_char mod = 0;
605 	struct key key;
606 	u_char code, up, mask;
607 	int s;
608 
609 	up = c & 0x80 ? 1 : 0;
610 	c &= 0x7f;
611 	code = 0;
612 
613 	s = spltty();
614 
615 	mask = 0;
616 	if (c >= KBD_LEFT_ALT && !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
617 		switch (c) {
618 		case KBD_LEFT_SHIFT:
619 			mask = KBD_MOD_SHIFT;
620 			break;
621 
622 		case KBD_LEFT_ALT:
623 			mask = KBD_MOD_LALT;
624 			break;
625 
626 		case KBD_RIGHT_ALT:
627 			mask = KBD_MOD_RALT;
628 			break;
629 
630 		case KBD_LEFT_META:
631 			mask = KBD_MOD_LMETA;
632 			break;
633 
634 		case KBD_RIGHT_META:
635 			mask = KBD_MOD_RMETA;
636 			break;
637 
638 		case KBD_CAPS_LOCK:
639 			/*
640 			 * capslock already behaves `right', don't need to
641 			 * keep track of the state in here.
642 			 */
643 			mask = KBD_MOD_CAPS;
644 			break;
645 
646 		case KBD_CTRL:
647 			mask = KBD_MOD_CTRL;
648 			break;
649 
650 		case KBD_RECONNECT:
651 			/* ite got 0xff */
652 			if (up)
653 				kbd_setLED();
654 			break;
655 		}
656 		if (mask & KBD_MOD_CAPS) {
657 			if (!up) {
658 				mod ^= KBD_MOD_CAPS;
659 				kbdled ^= LED_CAPS_LOCK;
660 				kbd_setLED();
661 			}
662 		} else if (up)
663 			mod &= ~mask;
664 		else mod |= mask;
665 		splx(s);
666 		return -1;
667 	}
668 
669 	if (up) {
670 		splx(s);
671 		return -1;
672 	}
673 
674 	/* translate modifiers */
675 	if (mod & KBD_MOD_SHIFT) {
676 		if (mod & KBD_MOD_ALT)
677 			key = kbdmap.alt_shift_keys[c];
678 		else
679 			key = kbdmap.shift_keys[c];
680 	} else if (mod & KBD_MOD_ALT)
681 		key = kbdmap.alt_keys[c];
682 	else {
683 		key = kbdmap.keys[c];
684 		/* if CAPS and key is CAPable (no pun intended) */
685 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
686 			key = kbdmap.shift_keys[c];
687 	}
688 	code = key.code;
689 
690 	/* if string return */
691 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
692 		splx(s);
693 		return -1;
694 	}
695 	/* handle dead keys */
696 	if (key.mode & KBD_MODE_DEAD) {
697 		splx(s);
698 		return -1;
699 	}
700 	if (mod & KBD_MOD_CTRL)
701 		code &= 0x1f;
702 	if (mod & KBD_MOD_META)
703 		code |= 0x80;
704 
705 	/* do console mapping. */
706 	code = code == '\r' ? '\n' : code;
707 
708 	splx(s);
709 	return (code);
710 }
711 
712 /* And now the old stuff. */
713 inline static void
714 itesendch(int ch)
715 {
716 	(*kbd_tty->t_linesw->l_rint)(ch, kbd_tty);
717 }
718 
719 
720 void
721 ite_filter(u_char c)
722 {
723 	static u_short mod = 0;
724 	unsigned char code, *str;
725 	u_short up, mask;
726 	struct key key;
727 	int s, i;
728 
729 	if (!kbd_ite || !(kbd_tty = ite_tty[device_unit(kbd_ite->device)]))
730 		return;
731 
732 	/* have to make sure we're at spltty in here */
733 	s = spltty();
734 
735 	up = c & 0x80 ? 1 : 0;
736 	c &= 0x7f;
737 	code = 0;
738 
739 	mask = 0;
740 	if (c >= KBD_LEFT_ALT &&
741 	    !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
742 		switch (c) {
743 		case KBD_LEFT_SHIFT:
744 			mask = KBD_MOD_SHIFT;
745 			break;
746 
747 		case KBD_LEFT_ALT:
748 			mask = KBD_MOD_LALT;
749 			break;
750 
751 		case KBD_RIGHT_ALT:
752 			mask = KBD_MOD_RALT;
753 			break;
754 
755 		case KBD_LEFT_META:
756 			mask = KBD_MOD_LMETA;
757 			break;
758 
759 		case KBD_RIGHT_META:
760 			mask = KBD_MOD_RMETA;
761 			break;
762 
763 		case KBD_CAPS_LOCK:
764 			/*
765 			 * capslock already behaves `right', don't need to keep
766 			 * track of the state in here.
767 			 */
768 			mask = KBD_MOD_CAPS;
769 			break;
770 
771 		case KBD_CTRL:
772 			mask = KBD_MOD_CTRL;
773 			break;
774 
775 		case KBD_OPT1:
776 			mask = KBD_MOD_OPT1;
777 			break;
778 
779 		case KBD_OPT2:
780 			mask = KBD_MOD_OPT2;
781 			break;
782 
783 		case KBD_RECONNECT:
784 			if (up) { /* ite got 0xff */
785 				kbd_setLED();
786 			}
787 			break;
788 		}
789 
790 		if (mask & KBD_MOD_CAPS) {
791 			if (!up) {
792 				mod ^= KBD_MOD_CAPS;
793 				kbdled ^= LED_CAPS_LOCK;
794 				kbd_setLED();
795 			}
796 		} else if (up) {
797 			mod &= ~mask;
798 		} else mod |= mask;
799 
800 		/*
801 		 * return even if it wasn't a modifier key, the other
802 		 * codes up here are either special (like reset warning),
803 		 * or not yet defined
804 		 */
805 		splx(s);
806 		return;
807 	}
808 
809 	if (up) {
810 		splx(s);
811 		return;
812 	}
813 
814 	/*
815 	 * intercept LAlt-LMeta-F1 here to switch back to original ascii-keymap.
816 	 * this should probably be configurable..
817 	 */
818 	if (mod == (KBD_MOD_LALT|KBD_MOD_LMETA) && c == 0x63) {
819 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
820 		splx(s);
821 		return;
822 	}
823 
824 	/* translate modifiers */
825 	if (mod & KBD_MOD_SHIFT) {
826 		if (mod & KBD_MOD_ALT)
827 			key = kbdmap.alt_shift_keys[c];
828 		else
829 			key = kbdmap.shift_keys[c];
830 	} else if (mod & KBD_MOD_ALT)
831 		key = kbdmap.alt_keys[c];
832 	else {
833 		key = kbdmap.keys[c];
834 		/* if CAPS and key is CAPable (no pun intended) */
835 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
836 			key = kbdmap.shift_keys[c];
837 		else if ((mod & KBD_MOD_OPT2) && (key.mode & KBD_MODE_KPAD))
838 			key = kbdmap.shift_keys[c];
839 	}
840 	code = key.code;
841 
842 	/* handle dead keys */
843 	if (key.mode & KBD_MODE_DEAD) {
844 		splx(s);
845 		return;
846 	}
847 	/* if not string, apply META and CTRL modifiers */
848 	if (! (key.mode & KBD_MODE_STRING)
849 	    && (!(key.mode & KBD_MODE_KPAD) ||
850 		(kbd_ite && !kbd_ite->keypad_appmode))) {
851 		if ((mod & KBD_MOD_CTRL) &&
852 		    (code == ' ' || (code >= '@' && code <= 'z')))
853 			code &= 0x1f;
854 		if (mod & KBD_MOD_META)
855 			code |= 0x80;
856 	} else if ((key.mode & KBD_MODE_KPAD) &&
857 	       (kbd_ite && kbd_ite->keypad_appmode)) {
858 		static const char * const in = "0123456789-+.\r()/*";
859 		static const char * const out = "pqrstuvwxymlnMPQRS";
860 		char *cp = strchr(in, code);
861 
862 		/*
863 		 * keypad-appmode sends SS3 followed by the above
864 		 * translated character
865 		 */
866 		(*kbd_tty->t_linesw->l_rint)(27, kbd_tty);
867 		(*kbd_tty->t_linesw->l_rint)('O', kbd_tty);
868 		(*kbd_tty->t_linesw->l_rint)(out[cp - in], kbd_tty);
869 		splx(s);
870 		return;
871 	} else {
872 		/* *NO* I don't like this.... */
873 		static u_char app_cursor[] =
874 		{
875 		  3, 27, 'O', 'A',
876 		  3, 27, 'O', 'B',
877 		  3, 27, 'O', 'C',
878 		  3, 27, 'O', 'D'};
879 
880 		str = kbdmap.strings + code;
881 		/*
882 		 * if this is a cursor key, AND it has the default
883 		 * keymap setting, AND we're in app-cursor mode, switch
884 		 * to the above table. This is *nasty* !
885 		 */
886 		if (c >= 0x3b && c <= 0x3e && kbd_ite->cursor_appmode
887 		    && !memcmp(str, "\x03\x1b[", 3) &&
888 		    strchr("ABCD", str[3]))
889 			str = app_cursor + 4 * (str[3] - 'A');
890 
891 		/*
892 		 * using a length-byte instead of 0-termination allows
893 		 * to embed \0 into strings, although this is not used
894 		 * in the default keymap
895 		 */
896 		for (i = *str++; i; i--)
897 			(*kbd_tty->t_linesw->l_rint)(*str++, kbd_tty);
898 		splx(s);
899 		return;
900 	}
901 	(*kbd_tty->t_linesw->l_rint)(code, kbd_tty);
902 
903 	splx(s);
904 	return;
905 }
906 
907 /* helper functions, makes the code below more readable */
908 inline static void
909 ite_sendstr(struct ite_softc *ip, const char *str)
910 {
911 	while (*str)
912 		itesendch(*str++);
913 }
914 
915 inline static void
916 alignment_display(struct ite_softc *ip)
917 {
918 	int i, j;
919 
920 	for (j = 0; j < ip->rows; j++)
921 		for (i = 0; i < ip->cols; i++)
922 			SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
923 	attrclr(ip, 0, 0, ip->rows, ip->cols);
924 }
925 
926 inline static void
927 snap_cury(struct ite_softc *ip)
928 {
929 	if (ip->inside_margins) {
930 		if (ip->cury < ip->top_margin)
931 			ip->cury = ip->top_margin;
932 		if (ip->cury > ip->bottom_margin)
933 			ip->cury = ip->bottom_margin;
934 	}
935 }
936 
937 inline static void
938 ite_dnchar(struct ite_softc *ip, int n)
939 {
940 	n = min(n, ip->cols - ip->curx);
941 	if (n < ip->cols - ip->curx) {
942 		SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
943 		attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
944 			1, ip->cols - ip->curx - n);
945 		attrclr(ip, ip->cury, ip->cols - n, 1, n);
946 	}
947 	while (n-- > 0)
948 		SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
949 }
950 
951 static void
952 ite_inchar(struct ite_softc *ip, int n)
953 {
954 	int c = ip->save_char;
955 	ip->save_char = 0;
956 	n = min(n, ip->cols - ip->curx);
957 	if (n < ip->cols - ip->curx) {
958 		SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
959 		attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
960 			1, ip->cols - ip->curx - n);
961 		attrclr(ip, ip->cury, ip->curx, 1, n);
962 	}
963 	while (n--)
964 		SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
965 	ip->save_char = c;
966 }
967 
968 inline static void
969 ite_clrtoeol(struct ite_softc *ip)
970 {
971 	int y = ip->cury, x = ip->curx;
972 	if (ip->cols - x > 0) {
973 		SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
974 		attrclr(ip, y, x, 1, ip->cols - x);
975 	}
976 }
977 
978 inline static void
979 ite_clrtobol(struct ite_softc *ip)
980 {
981 	int y = ip->cury, x = min(ip->curx + 1, ip->cols);
982 	SUBR_CLEAR(ip, y, 0, 1, x);
983 	attrclr(ip, y, 0, 1, x);
984 }
985 
986 inline static void
987 ite_clrline(struct ite_softc *ip)
988 {
989 	int y = ip->cury;
990 	SUBR_CLEAR(ip, y, 0, 1, ip->cols);
991 	attrclr(ip, y, 0, 1, ip->cols);
992 }
993 
994 inline static void
995 ite_clrtoeos(struct ite_softc *ip)
996 {
997 	ite_clrtoeol(ip);
998 	if (ip->cury < ip->rows - 1) {
999 		SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1000 		attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1001 	}
1002 }
1003 
1004 inline static void
1005 ite_clrtobos(struct ite_softc *ip)
1006 {
1007 	ite_clrtobol(ip);
1008 	if (ip->cury > 0) {
1009 		SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1010 		attrclr(ip, 0, 0, ip->cury, ip->cols);
1011 	}
1012 }
1013 
1014 inline static void
1015 ite_clrscreen(struct ite_softc *ip)
1016 {
1017 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1018 	attrclr(ip, 0, 0, ip->rows, ip->cols);
1019 }
1020 
1021 
1022 
1023 inline static void
1024 ite_dnline(struct ite_softc *ip, int n)
1025 {
1026 	/*
1027 	 * interesting.. if the cursor is outside the scrolling
1028 	 * region, this command is simply ignored..
1029 	 */
1030 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1031 		return;
1032 
1033 	n = min(n, ip->bottom_margin + 1 - ip->cury);
1034 	if (n <= ip->bottom_margin - ip->cury) {
1035 		SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1036 		attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1037 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1038 	}
1039 	SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1040 	attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1041 }
1042 
1043 inline static void
1044 ite_inline(struct ite_softc *ip, int n)
1045 {
1046 	/*
1047 	 * interesting.. if the cursor is outside the scrolling
1048 	 * region, this command is simply ignored..
1049 	 */
1050 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1051 		return;
1052 
1053 	if (n <= 0)
1054 		n = 1;
1055 	else n = min(n, ip->bottom_margin + 1 - ip->cury);
1056 	if (n <= ip->bottom_margin  - ip->cury) {
1057 		SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1058 		attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1059 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1060 	}
1061 	SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1062 	attrclr(ip, ip->cury, 0, n, ip->cols);
1063 	ip->curx = 0;
1064 }
1065 
1066 inline static void
1067 ite_index(struct ite_softc *ip)
1068 {
1069 	++ip->cury;
1070 	if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) {
1071 		ip->cury--;
1072 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1073 		ite_clrline(ip);
1074 	}
1075 	/*clr_attr(ip, ATTR_INV);*/
1076 }
1077 
1078 inline static void
1079 ite_lf(struct ite_softc *ip)
1080 {
1081 	++ip->cury;
1082 	if (ip->cury > ip->bottom_margin) {
1083 		ip->cury--;
1084 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1085 		ite_clrline(ip);
1086 	}
1087 /*	SUBR_CURSOR(ip, MOVE_CURSOR);*/
1088 	/*clr_attr(ip, ATTR_INV);*/
1089 	/* reset character set ... thanks for mohta. */
1090 	ip->G0 = CSET_ASCII;
1091 	ip->G1 = CSET_JIS1983;
1092 	ip->G2 = CSET_JISKANA;
1093 	ip->G3 = CSET_JIS1990;
1094 	ip->GL = &ip->G0;
1095 	ip->GR = &ip->G1;
1096 	ip->save_GL = 0;
1097 	ip->save_char = 0;
1098 }
1099 
1100 inline static void
1101 ite_crlf(struct ite_softc *ip)
1102 {
1103 	ip->curx = 0;
1104 	ite_lf (ip);
1105 }
1106 
1107 inline static void
1108 ite_cr(struct ite_softc *ip)
1109 {
1110 	if (ip->curx) {
1111 		ip->curx = 0;
1112 	}
1113 }
1114 
1115 inline static void
1116 ite_rlf(struct ite_softc *ip)
1117 {
1118 	ip->cury--;
1119 	if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) {
1120 		ip->cury++;
1121 		SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1122 		ite_clrline(ip);
1123 	}
1124 	clr_attr(ip, ATTR_INV);
1125 }
1126 
1127 inline static int
1128 atoi(const char *cp)
1129 {
1130 	int n;
1131 
1132 	for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1133 		n = n * 10 + *cp - '0';
1134 	return n;
1135 }
1136 
1137 inline static int
1138 ite_argnum(struct ite_softc *ip)
1139 {
1140 	char ch;
1141 	int n;
1142 
1143 	/* convert argument string into number */
1144 	if (ip->ap == ip->argbuf)
1145 		return 1;
1146 	ch = *ip->ap;
1147 	*ip->ap = 0;
1148 	n = atoi(ip->argbuf);
1149 	*ip->ap = ch;
1150 
1151 	return n;
1152 }
1153 
1154 inline static int
1155 ite_zargnum(struct ite_softc *ip)
1156 {
1157 	char ch;
1158 	int n;
1159 
1160 	/* convert argument string into number */
1161 	if (ip->ap == ip->argbuf)
1162 		return 0;
1163 	ch = *ip->ap;
1164 	*ip->ap = 0;	/* terminate string */
1165 	n = atoi(ip->argbuf);
1166 	*ip->ap = ch;
1167 
1168 	return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1169 }
1170 
1171 void
1172 ite_putstr(const u_char *s, int len, dev_t dev)
1173 {
1174 	struct ite_softc *ip;
1175 	int i;
1176 
1177 	ip = getitesp(dev);
1178 
1179 	/* XXX avoid problems */
1180 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1181 	  	return;
1182 
1183 	SUBR_CURSOR(ip, START_CURSOROPT);
1184 	for (i = 0; i < len; i++)
1185 		if (s[i])
1186 			iteputchar(s[i], ip);
1187 	SUBR_CURSOR(ip, END_CURSOROPT);
1188 }
1189 
1190 void
1191 iteputchar(int c, struct ite_softc *ip)
1192 {
1193 	int n, x, y;
1194 	char *cp;
1195 
1196 	if (c >= 0x20 && ip->escape) {
1197 		switch (ip->escape) {
1198 
1199 		case ESC:
1200 			switch (c) {
1201 				/* first 7bit equivalents for the 8bit control characters */
1202 
1203 			case 'D':
1204 				c = IND;
1205 				ip->escape = 0;
1206 				break; /* and fall into the next switch below (same for all `break') */
1207 
1208 			case 'E':
1209 				/* next line */
1210 				c = NEL;
1211 				ip->escape = 0;
1212 				break;
1213 
1214 			case 'H':
1215 				/* set TAB at current col */
1216 				c = HTS;
1217 				ip->escape = 0;
1218 				break;
1219 
1220 			case 'M':
1221 				/* reverse index */
1222 				c = RI;
1223 				ip->escape = 0;
1224 				break;
1225 
1226 			case 'N':
1227 				/* single shift G2 */
1228 				c = SS2;
1229 				ip->escape = 0;
1230 				break;
1231 
1232 			case 'O':
1233 				/* single shift G3 */
1234 				c = SS3;
1235 				ip->escape = 0;
1236 				break;
1237 
1238 			case 'P':
1239 				/* DCS detected */
1240 				c = DCS;
1241 				ip->escape = 0;
1242 				break;
1243 
1244 			case '[':
1245 				c = CSI;
1246 				ip->escape = 0;
1247 				break;
1248 
1249 			case '\\':
1250 				/* String Terminator */
1251 				c = ST;
1252 				ip->escape = 0;
1253 				break;
1254 
1255 			case ']':
1256 				c = OSC;
1257 				ip->escape = 0;
1258 				break;
1259 
1260 			case '^':
1261 				c = PM;
1262 				ip->escape = 0;
1263 				break;
1264 
1265 			case '_':
1266 				c = APC;
1267 				ip->escape = 0;
1268 				break;
1269 
1270 
1271 			/* introduces 7/8bit control */
1272 			case ' ':
1273 				/* can be followed by either F or G */
1274 				ip->escape = ' ';
1275 				break;
1276 
1277 
1278 			/* a lot of character set selections, not yet used...
1279 			   94-character sets: */
1280 			case '(':	/* G0 */
1281 			case ')':	/* G1 */
1282 				ip->escape = c;
1283 				return;
1284 
1285 			case '*':	/* G2 */
1286 			case '+':	/* G3 */
1287 			case 'B':	/* ASCII */
1288 			case 'A':	/* ISO latin 1 */
1289 			case '<':	/* user preferred suplemental */
1290 			case '0':	/* dec special graphics */
1291 
1292 			/* 96-character sets: */
1293 			case '-':	/* G1 */
1294 			case '.':	/* G2 */
1295 			case '/':	/* G3 */
1296 
1297 			/* national character sets: */
1298 			case '4':	/* dutch */
1299 			case '5':
1300 			case 'C':	/* finnish */
1301 			case 'R':	/* french */
1302 			case 'Q':	/* french canadian */
1303 			case 'K':	/* german */
1304 			case 'Y':	/* italian */
1305 			case '6':	/* norwegian/danish */
1306 			/* note: %5 and %6 are not supported (two chars..) */
1307 
1308 				ip->escape = 0;
1309 				/* just ignore for now */
1310 				return;
1311 
1312 			/* 94-multibyte character sets designate */
1313 			case '$':
1314 				ip->escape = '$';
1315 				return;
1316 
1317 			/* locking shift modes */
1318 			case '`':
1319 				ip->GR = &ip->G1;
1320 				ip->escape = 0;
1321 				return;
1322 
1323 			case 'n':
1324 				ip->GL = &ip->G2;
1325 				ip->escape = 0;
1326 				return;
1327 
1328 			case '}':
1329 				ip->GR = &ip->G2;
1330 				ip->escape = 0;
1331 				return;
1332 
1333 			case 'o':
1334 				ip->GL = &ip->G3;
1335 				ip->escape = 0;
1336 				return;
1337 
1338 			case '|':
1339 				ip->GR = &ip->G3;
1340 				ip->escape = 0;
1341 				return;
1342 
1343 			case '~':
1344 				ip->GR = &ip->G1;
1345 				ip->escape = 0;
1346 				return;
1347 
1348 			/* font width/height control */
1349 			case '#':
1350 				ip->escape = '#';
1351 				return;
1352 
1353 			case 'c':
1354 				/* hard terminal reset .. */
1355 				ite_reset(ip);
1356 				SUBR_CURSOR(ip, MOVE_CURSOR);
1357 				ip->escape = 0;
1358 				return;
1359 
1360 
1361 			case '7':
1362 				/* save cursor */
1363 				ip->save_curx = ip->curx;
1364 				ip->save_cury = ip->cury;
1365 				ip->save_attribute = ip->attribute;
1366 				ip->sc_om = ip->inside_margins;
1367 				ip->sc_G0 = ip->G0;
1368 				ip->sc_G1 = ip->G1;
1369 				ip->sc_G2 = ip->G2;
1370 				ip->sc_G3 = ip->G3;
1371 				ip->sc_GL = ip->GL;
1372 				ip->sc_GR = ip->GR;
1373 				ip->escape = 0;
1374 				return;
1375 
1376 			case '8':
1377 				/* restore cursor */
1378 				ip->curx = ip->save_curx;
1379 				ip->cury = ip->save_cury;
1380 				ip->attribute = ip->save_attribute;
1381 				ip->inside_margins = ip->sc_om;
1382 				ip->G0 = ip->sc_G0;
1383 				ip->G1 = ip->sc_G1;
1384 				ip->G2 = ip->sc_G2;
1385 				ip->G3 = ip->sc_G3;
1386 				ip->GL = ip->sc_GL;
1387 				ip->GR = ip->sc_GR;
1388 				SUBR_CURSOR(ip, MOVE_CURSOR);
1389 				ip->escape = 0;
1390 				return;
1391 
1392 			case '=':
1393 				/* keypad application mode */
1394 				ip->keypad_appmode = 1;
1395 				ip->escape = 0;
1396 				return;
1397 
1398 			case '>':
1399 				/* keypad numeric mode */
1400 				ip->keypad_appmode = 0;
1401 				ip->escape = 0;
1402 				return;
1403 
1404 			case 'Z':	/* request ID */
1405 				if (ip->emul_level == EMUL_VT100)
1406 					ite_sendstr(ip, "\033[61;0c"); /* XXX not clean */
1407 				else
1408 					ite_sendstr(ip, "\033[63;0c"); /* XXX not clean */
1409 				ip->escape = 0;
1410 				return;
1411 
1412 			/* default catch all for not recognized ESC sequences */
1413 			default:
1414 				ip->escape = 0;
1415 				return;
1416 			}
1417 			break;
1418 
1419 
1420 		case '(': /* designate G0 */
1421 			switch (c) {
1422 			case 'B': /* USASCII */
1423 				ip->G0 = CSET_ASCII;
1424 				ip->escape = 0;
1425 				return;
1426 			case 'I':
1427 				ip->G0 = CSET_JISKANA;
1428 				ip->escape = 0;
1429 				return;
1430 			case 'J':
1431 				ip->G0 = CSET_JISROMA;
1432 				ip->escape = 0;
1433 				return;
1434 			case 'A': /* British or ISO-Latin-1 */
1435 			case 'H': /* Swedish */
1436 			case 'K': /* German */
1437 			case 'R': /* French */
1438 			case 'Y': /* Italian */
1439 			case 'Z': /* Spanish */
1440 			default:
1441 				/* not supported */
1442 				ip->escape = 0;
1443 				return;
1444 			}
1445 
1446 		case ')': /* designate G1 */
1447 			ip->escape = 0;
1448 			return;
1449 
1450 		case '$': /* 94-multibyte character set */
1451 			switch (c) {
1452 			case '@':
1453 				ip->G0 = CSET_JIS1978;
1454 				ip->escape = 0;
1455 				return;
1456 			case 'B':
1457 				ip->G0 = CSET_JIS1983;
1458 				ip->escape = 0;
1459 				return;
1460 			case 'D':
1461 				ip->G0 = CSET_JIS1990;
1462 				ip->escape = 0;
1463 				return;
1464 			default:
1465 				/* not supported */
1466 				ip->escape = 0;
1467 				return;
1468 			}
1469 
1470 		case ' ':
1471 			switch (c) {
1472 			case 'F':
1473 				ip->eightbit_C1 = 0;
1474 				ip->escape = 0;
1475 				return;
1476 
1477 			case 'G':
1478 				ip->eightbit_C1 = 1;
1479 				ip->escape = 0;
1480 				return;
1481 
1482 			default:
1483 				/* not supported */
1484 				ip->escape = 0;
1485 				return;
1486 			}
1487 			break;
1488 
1489 		case '#':
1490 			switch (c) {
1491 			case '5':
1492 				/* single height, single width */
1493 				ip->escape = 0;
1494 				return;
1495 
1496 			case '6':
1497 				/* double width, single height */
1498 				ip->escape = 0;
1499 				return;
1500 
1501 			case '3':
1502 				/* top half */
1503 				ip->escape = 0;
1504 				return;
1505 
1506 			case '4':
1507 				/* bottom half */
1508 				ip->escape = 0;
1509 				return;
1510 
1511 			case '8':
1512 				/* screen alignment pattern... */
1513 				alignment_display(ip);
1514 				ip->escape = 0;
1515 				return;
1516 
1517 			default:
1518 				ip->escape = 0;
1519 				return;
1520 			}
1521 			break;
1522 
1523 
1524 
1525 		case CSI:
1526 			/* the biggie... */
1527 			switch (c) {
1528 			case '0': case '1': case '2': case '3': case '4':
1529 			case '5': case '6': case '7': case '8': case '9':
1530 			case ';': case '\"': case '$': case '>':
1531 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1532 					*ip->ap++ = c;
1533 				return;
1534 
1535 			case 'p':
1536 				*ip->ap = 0;
1537 				if (!strncmp(ip->argbuf, "61\"", 3))
1538 					ip->emul_level = EMUL_VT100;
1539 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1540 					 || !strncmp(ip->argbuf, "62;1\"", 5))
1541 					ip->emul_level = EMUL_VT300_7;
1542 				else
1543 					ip->emul_level = EMUL_VT300_8;
1544 				ip->escape = 0;
1545 				return;
1546 
1547 
1548 			case '?':
1549 				*ip->ap = 0;
1550 				ip->escape = '?';
1551 				ip->ap = ip->argbuf;
1552 				return;
1553 
1554 
1555 			case 'c':
1556 				/* device attributes */
1557 				*ip->ap = 0;
1558 				if (ip->argbuf[0] == '>') {
1559 					ite_sendstr(ip, "\033[>24;0;0;0c");
1560 				} else
1561 					switch (ite_zargnum(ip)) {
1562 					case 0:
1563 						/* primary DA request, send primary DA response */
1564 						if (ip->emul_level == EMUL_VT100)
1565 							ite_sendstr(ip, "\033[?1;1c");
1566 						else
1567 							ite_sendstr(ip, "\033[63;0c");
1568 						break;
1569 					}
1570 				ip->escape = 0;
1571 				return;
1572 
1573 			case 'n':
1574 				switch (ite_zargnum(ip)) {
1575 				case 5:
1576 					ite_sendstr(ip, "\033[0n");	/* no malfunction */
1577 					break;
1578 				case 6:
1579 					/* cursor position report */
1580 					snprintf(ip->argbuf, sizeof(ip->argbuf),
1581 					    "\033[%d;%dR",
1582 					     ip->cury + 1, ip->curx + 1);
1583 					ite_sendstr(ip, ip->argbuf);
1584 					break;
1585 				}
1586 				ip->escape = 0;
1587 				return;
1588 
1589 
1590 			case 'x':
1591 				switch (ite_zargnum(ip)) {
1592 				case 0:
1593 					/* Fake some terminal parameters.  */
1594 					ite_sendstr(ip, "\033[2;1;1;112;112;1;0x");
1595 					break;
1596 				case 1:
1597 					ite_sendstr(ip, "\033[3;1;1;112;112;1;0x");
1598 					break;
1599 				}
1600 				ip->escape = 0;
1601 				return;
1602 
1603 
1604 			case 'g':
1605 				/* clear tabs */
1606 				switch (ite_zargnum(ip)) {
1607 				case 0:
1608 					if (ip->curx < ip->cols)
1609 						ip->tabs[ip->curx] = 0;
1610 					break;
1611 				case 3:
1612 					for (n = 0; n < ip->cols; n++)
1613 						ip->tabs[n] = 0;
1614 					break;
1615 
1616 				default:
1617 					/* ignore */
1618 					break;
1619 				}
1620 				ip->escape = 0;
1621 				return;
1622 
1623 
1624 			case 'h': /* set mode */
1625 			case 'l': /* reset mode */
1626 				n = ite_zargnum(ip);
1627 				switch (n) {
1628 				case 4:
1629 					ip->imode = (c == 'h');	/* insert/replace mode */
1630 					break;
1631 				case 20:
1632 					ip->linefeed_newline = (c == 'h');
1633 					break;
1634 				}
1635 				ip->escape = 0;
1636 				return;
1637 
1638 
1639 			case 'M':
1640 				/* delete line */
1641 				ite_dnline(ip, ite_argnum(ip));
1642 				ip->escape = 0;
1643 				return;
1644 
1645 
1646 			case 'L':
1647 				/* insert line */
1648 				ite_inline(ip, ite_argnum(ip));
1649 				ip->escape = 0;
1650 				return;
1651 
1652 
1653 			case 'P':
1654 				/* delete char */
1655 				ite_dnchar(ip, ite_argnum(ip));
1656 				ip->escape = 0;
1657 				return;
1658 
1659 
1660 			case '@':
1661 				/* insert char(s) */
1662 				ite_inchar(ip, ite_argnum(ip));
1663 				ip->escape = 0;
1664 				return;
1665 
1666 			case '!':
1667 				/* soft terminal reset */
1668 				ip->escape = 0; /* XXX */
1669 				return;
1670 
1671 			case 'G':
1672 				/* this one was *not* in my vt320 manual but in
1673 				   a vt320 termcap entry.. who is right?
1674 				   It's supposed to set the horizontal cursor position. */
1675 				*ip->ap = 0;
1676 				x = atoi(ip->argbuf);
1677 				if (x)
1678 					x--;
1679 				ip->curx = min(x, ip->cols - 1);
1680 				ip->escape = 0;
1681 				SUBR_CURSOR(ip, MOVE_CURSOR);
1682 				clr_attr(ip, ATTR_INV);
1683 				return;
1684 
1685 
1686 			case 'd':
1687 				/* same thing here, this one's for setting the absolute
1688 				   vertical cursor position. Not documented... */
1689 				*ip->ap = 0;
1690 				y = atoi(ip->argbuf);
1691 				if (y)
1692 					y--;
1693 				if (ip->inside_margins)
1694 					y += ip->top_margin;
1695 				ip->cury = min(y, ip->rows - 1);
1696 				ip->escape = 0;
1697 				snap_cury(ip);
1698 				SUBR_CURSOR(ip, MOVE_CURSOR);
1699 				clr_attr(ip, ATTR_INV);
1700 				return;
1701 
1702 
1703 			case 'H':
1704 			case 'f':
1705 				*ip->ap = 0;
1706 				y = atoi(ip->argbuf);
1707 				x = 0;
1708 				cp = strchr(ip->argbuf, ';');
1709 				if (cp)
1710 					x = atoi(cp + 1);
1711 				if (x)
1712 					x--;
1713 				if (y)
1714 					y--;
1715 				if (ip->inside_margins)
1716 					y += ip->top_margin;
1717 				ip->cury = min(y, ip->rows - 1);
1718 				ip->curx = min(x, ip->cols - 1);
1719 				ip->escape = 0;
1720 				snap_cury(ip);
1721 				SUBR_CURSOR(ip, MOVE_CURSOR);
1722 				/*clr_attr(ip, ATTR_INV);*/
1723 				return;
1724 
1725 			case 'A':
1726 				/* cursor up */
1727 				n = ite_argnum(ip);
1728 				n = ip->cury - (n ? n : 1);
1729 				if (n < 0)
1730 					n = 0;
1731 				if (ip->inside_margins)
1732 					n = max(ip->top_margin, n);
1733 				else if (n == ip->top_margin - 1)
1734 					/* allow scrolling outside region, but don't scroll out
1735 					   of active region without explicit CUP */
1736 					n = ip->top_margin;
1737 				ip->cury = n;
1738 				ip->escape = 0;
1739 				SUBR_CURSOR(ip, MOVE_CURSOR);
1740 				clr_attr(ip, ATTR_INV);
1741 				return;
1742 
1743 			case 'B':
1744 				/* cursor down */
1745 				n = ite_argnum(ip);
1746 				n = ip->cury + (n ? n : 1);
1747 				n = min(ip->rows - 1, n);
1748 #if 0
1749 				if (ip->inside_margins)
1750 #endif
1751 					n = min(ip->bottom_margin, n);
1752 #if 0
1753 				else if (n == ip->bottom_margin + 1)
1754 					/* allow scrolling outside region, but don't scroll out
1755 					   of active region without explicit CUP */
1756 					n = ip->bottom_margin;
1757 #endif
1758 				ip->cury = n;
1759 				ip->escape = 0;
1760 				SUBR_CURSOR(ip, MOVE_CURSOR);
1761 				clr_attr(ip, ATTR_INV);
1762 				return;
1763 
1764 			case 'C':
1765 				/* cursor forward */
1766 				n = ite_argnum(ip);
1767 				n = n ? n : 1;
1768 				ip->curx = min(ip->curx + n, ip->cols - 1);
1769 				ip->escape = 0;
1770 				SUBR_CURSOR(ip, MOVE_CURSOR);
1771 				clr_attr(ip, ATTR_INV);
1772 				return;
1773 
1774 			case 'D':
1775 				/* cursor backward */
1776 				n = ite_argnum(ip);
1777 				n = n ? n : 1;
1778 				n = ip->curx - n;
1779 				ip->curx = n >= 0 ? n : 0;
1780 				ip->escape = 0;
1781 				SUBR_CURSOR(ip, MOVE_CURSOR);
1782 				clr_attr(ip, ATTR_INV);
1783 				return;
1784 
1785 
1786 			case 'J':
1787 				/* erase screen */
1788 				*ip->ap = 0;
1789 				n = ite_zargnum(ip);
1790 				if (n == 0)
1791 					ite_clrtoeos(ip);
1792 				else if (n == 1)
1793 					ite_clrtobos(ip);
1794 				else if (n == 2)
1795 					ite_clrscreen(ip);
1796 				ip->escape = 0;
1797 				return;
1798 
1799 
1800 			case 'K':
1801 				/* erase line */
1802 				n = ite_zargnum(ip);
1803 				if (n == 0)
1804 					ite_clrtoeol(ip);
1805 				else if (n == 1)
1806 					ite_clrtobol(ip);
1807 				else if (n == 2)
1808 					ite_clrline(ip);
1809 				ip->escape = 0;
1810 				return;
1811 
1812 			case 'S':
1813 				/* scroll up */
1814 				n = ite_zargnum(ip);
1815 				if (n <= 0)
1816 					n = 1;
1817 				else if (n > ip->rows-1)
1818 					n = ip->rows-1;
1819 				SUBR_SCROLL(ip, ip->rows-1, 0, n, SCROLL_UP);
1820 				ip->escape = 0;
1821 				return;
1822 
1823 			case 'T':
1824 				/* scroll down */
1825 				n = ite_zargnum(ip);
1826 				if (n <= 0)
1827 					n = 1;
1828 				else if (n > ip->rows-1)
1829 					n = ip->rows-1;
1830 				SUBR_SCROLL(ip, 0, 0, n, SCROLL_DOWN);
1831 				ip->escape = 0;
1832 				return;
1833 
1834 			case 'X':
1835 				/* erase character */
1836 				n = ite_argnum(ip) - 1;
1837 				n = min(n, ip->cols - 1 - ip->curx);
1838 				for (; n >= 0; n--) {
1839 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1840 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1841 				}
1842 				ip->escape = 0;
1843 				return;
1844 
1845 
1846 			case '}': case '`':
1847 				/* status line control */
1848 				ip->escape = 0;
1849 				return;
1850 
1851 			case 'r':
1852 				/* set scrolling region */
1853 				ip->escape = 0;
1854 				*ip->ap = 0;
1855 				x = atoi(ip->argbuf);
1856 				x = x ? x : 1;
1857 				y = ip->rows;
1858 				cp = strchr(ip->argbuf, ';');
1859 				if (cp) {
1860 					y = atoi(cp + 1);
1861 					y = y ? y : ip->rows;
1862 				}
1863 				if (y <= x)
1864 					return;
1865 				x--;
1866 				y--;
1867 				ip->top_margin = min(x, ip->rows - 2);
1868 				ip->bottom_margin = min(y, ip->rows - 1);
1869 				if (ip->inside_margins) {
1870 					ip->cury = ip->top_margin;
1871 				} else
1872 					ip->cury = 0;
1873 				ip->curx = 0;
1874 				return;
1875 
1876 
1877 			case 'm':
1878 				/* big attribute setter/resetter */
1879 			{
1880 				char *c_p;
1881 				*ip->ap = 0;
1882 				/* kludge to make CSIm work (== CSI0m) */
1883 				if (ip->ap == ip->argbuf)
1884 					ip->ap++;
1885 				for (c_p = ip->argbuf; c_p < ip->ap; ) {
1886 					switch (*c_p) {
1887 					case 0:
1888 					case '0':
1889 						clr_attr(ip, ATTR_ALL);
1890 						ip->fgcolor = 7;
1891 						ip->bgcolor = 0;
1892 						c_p++;
1893 						break;
1894 
1895 					case '1':
1896 						set_attr(ip, ATTR_BOLD);
1897 						c_p++;
1898 						break;
1899 
1900 					case '2':
1901 						switch (c_p[1]) {
1902 						case '2':
1903 							clr_attr(ip, ATTR_BOLD);
1904 							c_p += 2;
1905 							break;
1906 
1907 						case '4':
1908 							clr_attr(ip, ATTR_UL);
1909 							c_p += 2;
1910 							break;
1911 
1912 						case '5':
1913 							clr_attr(ip, ATTR_BLINK);
1914 							c_p += 2;
1915 							break;
1916 
1917 						case '7':
1918 							clr_attr(ip, ATTR_INV);
1919 							c_p += 2;
1920 							break;
1921 
1922 						default:
1923 							c_p++;
1924 							break;
1925 						}
1926 						break;
1927 
1928 					case '3':
1929 						switch (c_p[1]) {
1930 						case '0': case '1': case '2': case '3':
1931 						case '4': case '5': case '6': case '7':
1932 							/* foreground colors */
1933 							ip->fgcolor = c_p[1] - '0';
1934 							c_p += 2;
1935 							break;
1936 						default:
1937 							c_p++;
1938 							break;
1939 						}
1940 						break;
1941 
1942 					case '4':
1943 						switch (c_p[1]) {
1944 						case '0': case '1': case '2': case '3':
1945 						case '4': case '5': case '6': case '7':
1946 							/* background colors */
1947 							ip->bgcolor = c_p[1] - '0';
1948 							c_p += 2;
1949 							break;
1950 						default:
1951 							set_attr(ip, ATTR_UL);
1952 							c_p++;
1953 							break;
1954 						}
1955 						break;
1956 
1957 					case '5':
1958 						set_attr(ip, ATTR_BLINK);
1959 						c_p++;
1960 						break;
1961 
1962 					case '7':
1963 						set_attr(ip, ATTR_INV);
1964 						c_p++;
1965 						break;
1966 
1967 					default:
1968 						c_p++;
1969 						break;
1970 					}
1971 				}
1972 
1973 			}
1974 				ip->escape = 0;
1975 				return;
1976 
1977 
1978 			case 'u':
1979 				/* DECRQTSR */
1980 				ite_sendstr(ip, "\033P\033\\");
1981 				ip->escape = 0;
1982 				return;
1983 
1984 			default:
1985 				ip->escape = 0;
1986 				return;
1987 			}
1988 			break;
1989 
1990 
1991 
1992 		case '?':	/* CSI ? */
1993 			switch (c) {
1994 			case '0': case '1': case '2': case '3': case '4':
1995 			case '5': case '6': case '7': case '8': case '9':
1996 			case ';': case '\"': case '$':
1997 				/* Don't fill the last character; it's needed.  */
1998 				/* XXX yeah, where ?? */
1999 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2000 					*ip->ap++ = c;
2001 				return;
2002 
2003 
2004 			case 'n':
2005 				/* Terminal Reports */
2006 				*ip->ap = 0;
2007 				if (ip->ap == &ip->argbuf[2]) {
2008 					if (!strncmp(ip->argbuf, "15", 2))
2009 						/* printer status: no printer */
2010 						ite_sendstr(ip, "\033[13n");
2011 
2012 					else if (!strncmp(ip->argbuf, "25", 2))
2013 						/* udk status */
2014 						ite_sendstr(ip, "\033[20n");
2015 
2016 					else if (!strncmp(ip->argbuf, "26", 2))
2017 						/* keyboard dialect: US */
2018 						ite_sendstr(ip, "\033[27;1n");
2019 				}
2020 				ip->escape = 0;
2021 				return;
2022 
2023 
2024 			case 'h': /* set dec private modes */
2025 			case 'l': /* reset dec private modes */
2026 				n = ite_zargnum(ip);
2027 				switch (n) {
2028 				case 1:
2029 					/* CKM - cursor key mode */
2030 					ip->cursor_appmode = (c == 'h');
2031 					break;
2032 
2033 				case 3:
2034 					/* 132/80 columns (132 == 'h') */
2035 					break;
2036 
2037 				case 4: /* smooth scroll */
2038 					break;
2039 
2040 				case 5:
2041 					/* light background (=='h') /dark background(=='l') */
2042 					break;
2043 
2044 				case 6: /* origin mode */
2045 					ip->inside_margins = (c == 'h');
2046 #if 0
2047 					ip->curx = 0;
2048 					ip->cury = ip->inside_margins ? ip->top_margin : 0;
2049 					SUBR_CURSOR(ip, MOVE_CURSOR);
2050 #endif
2051 					break;
2052 
2053 				case 7: /* auto wraparound */
2054 					ip->auto_wrap = (c == 'h');
2055 					break;
2056 
2057 				case 8: /* keyboard repeat */
2058 					ip->key_repeat = (c == 'h');
2059 					break;
2060 
2061 				case 20: /* newline mode */
2062 					ip->linefeed_newline = (c == 'h');
2063 					break;
2064 
2065 				case 25: /* cursor on/off */
2066 					SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR);
2067 					break;
2068 				}
2069 				ip->escape = 0;
2070 				return;
2071 
2072 			case 'K':
2073 				/* selective erase in line */
2074 			case 'J':
2075 				/* selective erase in display */
2076 
2077 			default:
2078 				ip->escape = 0;
2079 				return;
2080 			}
2081 			break;
2082 
2083 
2084 		default:
2085 			ip->escape = 0;
2086 			return;
2087 		}
2088 	}
2089 
2090 	switch (c) {
2091 	case 0x00:	/* NUL */
2092 	case 0x01:	/* SOH */
2093 	case 0x02:	/* STX */
2094 	case 0x03:	/* ETX */
2095 	case 0x04:	/* EOT */
2096 	case 0x05:	/* ENQ */
2097 	case 0x06:	/* ACK */
2098 		break;
2099 
2100 	case BEL:
2101 #if NBELL > 0
2102 		if (kbd_ite && ite_tty[device_unit(kbd_ite->device)])
2103 			opm_bell();
2104 #endif
2105 		break;
2106 
2107 	case BS:
2108 		if (--ip->curx < 0)
2109 			ip->curx = 0;
2110 		else
2111 			SUBR_CURSOR(ip, MOVE_CURSOR);
2112 		break;
2113 
2114 	case HT:
2115 		for (n = ip->curx + 1; n < ip->cols; n++) {
2116 			if (ip->tabs[n]) {
2117 				ip->curx = n;
2118 				SUBR_CURSOR(ip, MOVE_CURSOR);
2119 				break;
2120 			}
2121 		}
2122 		break;
2123 
2124 	case VT:	/* VT is treated like LF */
2125 	case FF:	/* so is FF */
2126 	case LF:
2127 		/* cr->crlf distinction is done here, on output,
2128 		   not on input! */
2129 		if (ip->linefeed_newline)
2130 			ite_crlf(ip);
2131 		else
2132 			ite_lf(ip);
2133 		break;
2134 
2135 	case CR:
2136 		ite_cr(ip);
2137 		break;
2138 
2139 
2140 	case SO:
2141 		ip->GL = &ip->G1;
2142 		break;
2143 
2144 	case SI:
2145 		ip->GL = &ip->G0;
2146 		break;
2147 
2148 	case 0x10:	/* DLE */
2149 	case 0x11:	/* DC1/XON */
2150 	case 0x12:	/* DC2 */
2151 	case 0x13:	/* DC3/XOFF */
2152 	case 0x14:	/* DC4 */
2153 	case 0x15:	/* NAK */
2154 	case 0x16:	/* SYN */
2155 	case 0x17:	/* ETB */
2156 		break;
2157 
2158 	case CAN:
2159 		ip->escape = 0;	/* cancel any escape sequence in progress */
2160 		break;
2161 
2162 	case 0x19:	/* EM */
2163 		break;
2164 
2165 	case SUB:
2166 		ip->escape = 0;	/* dito, but see below */
2167 		/* should also display a reverse question mark!! */
2168 		break;
2169 
2170 	case ESC:
2171 		ip->escape = ESC;
2172 		break;
2173 
2174 	case 0x1c:	/* FS */
2175 	case 0x1d:	/* GS */
2176 	case 0x1e:	/* RS */
2177 	case 0x1f:	/* US */
2178 		break;
2179 
2180 	/* now it gets weird.. 8bit control sequences.. */
2181 	case IND:	/* index: move cursor down, scroll */
2182 		ite_index(ip);
2183 		break;
2184 
2185 	case NEL:	/* next line. next line, first pos. */
2186 		ite_crlf(ip);
2187 		break;
2188 
2189 	case HTS:	/* set horizontal tab */
2190 		if (ip->curx < ip->cols)
2191 			ip->tabs[ip->curx] = 1;
2192 		break;
2193 
2194 	case RI:	/* reverse index */
2195 		ite_rlf(ip);
2196 		break;
2197 
2198 	case SS2:	/* go into G2 for one character */
2199 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2200 		ip->GR = &ip->G2;	/* GL XXX */
2201 		break;
2202 
2203 	case SS3:	/* go into G3 for one character */
2204 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2205 		ip->GR = &ip->G3;	/* GL XXX */
2206 		break;
2207 
2208 	case DCS:	/* device control string introducer */
2209 		ip->escape = DCS;
2210 		ip->ap = ip->argbuf;
2211 		break;
2212 
2213 	case CSI:	/* control sequence introducer */
2214 		ip->escape = CSI;
2215 		ip->ap = ip->argbuf;
2216 		break;
2217 
2218 	case ST:	/* string terminator */
2219 		/* ignore, if not used as terminator */
2220 		break;
2221 
2222 	case OSC:	/* introduces OS command. Ignore everything upto ST */
2223 		ip->escape = OSC;
2224 		break;
2225 
2226 	case PM:	/* privacy message, ignore everything upto ST */
2227 		ip->escape = PM;
2228 		break;
2229 
2230 	case APC:	/* application program command, ignore everything upto ST */
2231 		ip->escape = APC;
2232 		break;
2233 
2234 	case DEL:
2235 		break;
2236 
2237 	default:
2238 		if (!ip->save_char && (*((c & 0x80) ? ip->GR : ip->GL) & CSET_MULTI)) {
2239 			ip->save_char = c;
2240 			break;
2241 		}
2242 		if (ip->imode)
2243 			ite_inchar(ip, ip->save_char ? 2 : 1);
2244 		iteprecheckwrap(ip);
2245 #ifdef DO_WEIRD_ATTRIBUTES
2246 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2247 			attrset(ip, ATTR_INV);
2248 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2249 		}
2250 		else
2251 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2252 #else
2253 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2254 #endif
2255 /*		SUBR_CURSOR(ip, DRAW_CURSOR);*/
2256 		itecheckwrap(ip);
2257 		if (ip->save_char) {
2258 			itecheckwrap(ip);
2259 			ip->save_char = 0;
2260 		}
2261 		if (ip->save_GL) {
2262 			/*
2263 			 * reset single shift
2264 			 */
2265 			ip->GR = ip->save_GL;
2266 			ip->save_GL = 0;
2267 		}
2268 		break;
2269 	}
2270 }
2271 
2272 static void
2273 iteprecheckwrap(struct ite_softc *ip)
2274 {
2275 	if (ip->auto_wrap && ip->curx + (ip->save_char ? 1 : 0) == ip->cols) {
2276 		ip->curx = 0;
2277 		clr_attr(ip, ATTR_INV);
2278 		if (++ip->cury >= ip->bottom_margin + 1) {
2279 			ip->cury = ip->bottom_margin;
2280 			/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2281 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2282 			ite_clrtoeol(ip);
2283 		} /*else
2284 			SUBR_CURSOR(ip, MOVE_CURSOR);*/
2285 	}
2286 }
2287 
2288 static void
2289 itecheckwrap(struct ite_softc *ip)
2290 {
2291 #if 0
2292 	if (++ip->curx == ip->cols) {
2293 		if (ip->auto_wrap) {
2294 			ip->curx = 0;
2295 			clr_attr(ip, ATTR_INV);
2296 			if (++ip->cury >= ip->bottom_margin + 1) {
2297 				ip->cury = ip->bottom_margin;
2298 				SUBR_CURSOR(ip, MOVE_CURSOR);
2299 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2300 				ite_clrtoeol(ip);
2301 				return;
2302 			}
2303 		} else
2304 			/* stay there if no autowrap.. */
2305 			ip->curx--;
2306 	}
2307 #else
2308 	if (ip->curx < ip->cols) {
2309 		ip->curx++;
2310 		/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2311 	}
2312 #endif
2313 }
2314 
2315 #endif
2316 
2317 #if NITE > 0 && NKBD > 0
2318 
2319 /*
2320  * Console functions
2321  */
2322 #include <dev/cons.h>
2323 extern void kbdenable(int);
2324 extern int kbdcngetc(void);
2325 
2326 /*
2327  * Return a priority in consdev->cn_pri field highest wins.  This function
2328  * is called before any devices have been probed.
2329  */
2330 void
2331 itecnprobe(struct consdev *cd)
2332 {
2333 	int maj;
2334 
2335 	/* locate the major number */
2336 	maj = cdevsw_lookup_major(&ite_cdevsw);
2337 
2338 	/*
2339 	 * return priority of the best ite (already picked from attach)
2340 	 * or CN_DEAD.
2341 	 */
2342 	if (con_itesoftc.grf == NULL)
2343 		cd->cn_pri = CN_DEAD;
2344 	else {
2345 		con_itesoftc.flags = (ITE_ALIVE|ITE_CONSOLE);
2346 		/*
2347 		 * hardcode the minor number.
2348 		 * currently we support only one ITE, it is enough for now.
2349 		 */
2350 		con_itesoftc.isw = &itesw[0];
2351 		cd->cn_pri = CN_INTERNAL;
2352 		cd->cn_dev = makedev(maj, 0);
2353 	}
2354 
2355 }
2356 
2357 void
2358 itecninit(struct consdev *cd)
2359 {
2360 	struct ite_softc *ip;
2361 
2362 	ip = getitesp(cd->cn_dev);
2363 	iteinit(cd->cn_dev);	       /* init console unit */
2364 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
2365 	kbdenable(0);
2366 	mfp_send_usart(0x49);
2367 }
2368 
2369 /*
2370  * itecnfinish() is called in ite_init() when the device is
2371  * being probed in the normal fasion, thus we can finish setting
2372  * up this ite now that the system is more functional.
2373  */
2374 void
2375 itecnfinish(struct ite_softc *ip)
2376 {
2377 	static int done;
2378 
2379 	if (done)
2380 		return;
2381 	done = 1;
2382 }
2383 
2384 /*ARGSUSED*/
2385 int
2386 itecngetc(dev_t dev)
2387 {
2388 	int c;
2389 
2390 	do {
2391 		c = kbdcngetc();
2392 		c = ite_cnfilter(c);
2393 	} while (c == -1);
2394 	return (c);
2395 }
2396 
2397 void
2398 itecnputc(dev_t dev, int c)
2399 {
2400 	static int paniced = 0;
2401 	struct ite_softc *ip = getitesp(dev);
2402 	char ch = c;
2403 #ifdef ITE_KERNEL_ATTR
2404 	short save_attribute;
2405 #endif
2406 
2407 	if (panicstr && !paniced &&
2408 	    (ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) {
2409 		(void) iteon(dev, 3);
2410 		paniced = 1;
2411 	}
2412 #ifdef ITE_KERNEL_ATTR
2413 	save_attribute = ip->attribute;
2414 	ip->attribute = ITE_KERNEL_ATTR;
2415 #endif
2416 	ite_putstr(&ch, 1, dev);
2417 #ifdef ITE_KERNEL_ATTR
2418 	ip->attribute = save_attribute;
2419 #endif
2420 }
2421 #endif
2422