xref: /netbsd-src/sys/arch/x68k/dev/ite.c (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
1 /*	$NetBSD: ite.c,v 1.62 2014/03/26 08:17:59 christos 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 1.62 2014/03/26 08:17:59 christos 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_flag = D_TTY
180 };
181 
182 int
183 itematch(device_t parent, cfdata_t cf, void *aux)
184 {
185 	struct grf_softc *gp;
186 
187 	gp = aux;
188 	if (cf->cf_loc[GRFCF_GRFADDR] != gp->g_cfaddr)
189 		return 0;
190 
191 	return 1;
192 }
193 
194 /*
195  * iteinit() is the standard entry point for initialization of
196  * an ite device, it is also called from ite_cninit().
197  */
198 void
199 iteattach(device_t parent, device_t self, void *aux)
200 {
201 	struct ite_softc *ip;
202 	struct grf_softc *gp;
203 
204 	gp = aux;
205 	ip = device_private(self);
206 	ip->device = self;
207 	if(con_itesoftc.grf != NULL
208 		/*&& con_itesoftc.grf->g_unit == gp->g_unit*/) {
209 		/*
210 		 * console reinit copy params over.
211 		 * and console always gets keyboard
212 		 */
213 		memcpy(&ip->grf, &con_itesoftc.grf,
214 		    (char *)&ip[1] - (char *)&ip->grf);
215 		con_itesoftc.grf = NULL;
216 		kbd_ite = ip;
217 	}
218 	ip->grf = gp;
219 	iteinit(device_unit(self)); /* XXX */
220 	aprint_normal(": rows %d cols %d", ip->rows, ip->cols);
221 	if (kbd_ite == NULL)
222 		kbd_ite = ip;
223 	aprint_normal("\n");
224 }
225 
226 struct ite_softc *
227 getitesp(dev_t dev)
228 {
229 
230 	if (x68k_realconfig && con_itesoftc.grf == NULL)
231 		return device_lookup_private(&ite_cd, UNIT(dev));
232 
233 	if (con_itesoftc.grf == NULL)
234 		panic("no ite_softc for console");
235 	return(&con_itesoftc);
236 }
237 
238 void
239 iteinit(dev_t dev)
240 {
241 	struct ite_softc *ip;
242 
243 	ip = getitesp(dev);
244 
245 	if (ip->flags & ITE_INITED)
246 		return;
247 	memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
248 
249 	ip->curx = 0;
250 	ip->cury = 0;
251 	ip->cursorx = 0;
252 	ip->cursory = 0;
253 
254 	ip->isw = &itesw[device_unit(ip->device)]; /* XXX */
255 	SUBR_INIT(ip);
256 	SUBR_CURSOR(ip, DRAW_CURSOR);
257 	if (!ip->tabs)
258 		ip->tabs = malloc(MAX_TABS*sizeof(u_char), M_DEVBUF, M_WAITOK);
259 	ite_reset(ip);
260 	ip->flags |= ITE_INITED;
261 }
262 
263 void
264 ite_config_console(void)
265 {
266 	struct grf_softc *gp = &congrf;
267 
268 	if (con_itesoftc.grf != NULL)
269 		return;
270 	con_itesoftc.grf = gp;
271 	con_itesoftc.tabs = cons_tabs;
272 	con_itesoftc.device = &con_itedev;
273 }
274 
275 /*
276  * Perform functions necessary to setup device as a terminal emulator.
277  */
278 int
279 iteon(dev_t dev, int flag)
280 {
281 	int unit = UNIT(dev);
282 	struct ite_softc *ip;
283 
284 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
285 	    (ip = getitesp(dev)) == NULL || (ip->flags&ITE_ALIVE) == 0)
286 		return(ENXIO);
287 	/* force ite active, overriding graphics mode */
288 	if (flag & 1) {
289 		ip->flags |= ITE_ACTIVE;
290 		ip->flags &= ~(ITE_INGRF|ITE_INITED);
291 	}
292 	/* leave graphics mode */
293 	if (flag & 2) {
294 		ip->flags &= ~ITE_INGRF;
295 		if ((ip->flags & ITE_ACTIVE) == 0)
296 			return(0);
297 	}
298 	ip->flags |= ITE_ACTIVE;
299 	if (ip->flags & ITE_INGRF)
300 		return(0);
301 	iteinit(dev);
302 	if (flag & 2)
303 		ite_reset(ip);
304 #if NKBD > 0
305 	mfp_send_usart(0x49);	/* XXX */
306 #endif
307 	return(0);
308 }
309 
310 /*
311  * "Shut down" device as terminal emulator.
312  * Note that we do not deinit the console device unless forced.
313  * Deinit'ing the console every time leads to a very active
314  * screen when processing /etc/rc.
315  */
316 void
317 iteoff(dev_t dev, int flag)
318 {
319 	int unit = UNIT(dev);
320 	struct ite_softc *ip;
321 
322 	/* XXX check whether when call from grf.c */
323 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
324 	    (ip = getitesp(dev)) == NULL || (ip->flags&ITE_ALIVE) == 0)
325 		return;
326 	if (flag & 2)
327 		ip->flags |= ITE_INGRF;
328 
329 	if ((ip->flags & ITE_ACTIVE) == 0)
330 		return;
331 	if ((flag & 1) ||
332 	    (ip->flags & (ITE_INGRF|ITE_ISCONS|ITE_INITED)) == ITE_INITED)
333 		SUBR_DEINIT(ip);
334 
335 	/*
336 	 * XXX When the system is rebooted with "reboot", init(8)
337 	 * kills the last process to have the console open.
338 	 * If we don't revent the ITE_ACTIVE bit from being
339 	 * cleared, we will never see messages printed during
340 	 * the process of rebooting.
341 	 */
342 	if ((flag & 2) == 0 && (ip->flags & ITE_ISCONS) == 0) {
343 		ip->flags &= ~ITE_ACTIVE;
344 #if NKBD > 0
345 		mfp_send_usart(0x48);	/* XXX */
346 #endif
347 	}
348 }
349 
350 /*
351  * standard entry points to the device.
352  */
353 
354 /* ARGSUSED */
355 int
356 iteopen(dev_t dev, int mode, int devtype, struct lwp *l)
357 {
358 	int unit = UNIT(dev);
359 	struct tty *tp;
360 	struct ite_softc *ip;
361 	int error;
362 	int first = 0;
363 
364 	if (unit >= ite_cd.cd_ndevs || (ip = getitesp(dev)) == NULL)
365 		return (ENXIO);
366 	if (!ite_tty[unit]) {
367 		tp = ite_tty[unit] = tty_alloc();
368 		tty_attach(tp);
369 	} else
370 		tp = ite_tty[unit];
371 	if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
372 		return (EBUSY);
373 	if ((ip->flags & ITE_ACTIVE) == 0) {
374 		error = iteon(dev, 0);
375 		if (error)
376 			return (error);
377 		first = 1;
378 	}
379 	tp->t_oproc = itestart;
380 	tp->t_param = NULL;
381 	tp->t_dev = dev;
382 	if ((tp->t_state&TS_ISOPEN) == 0) {
383 		ttychars(tp);
384 		tp->t_iflag = TTYDEF_IFLAG;
385 		tp->t_oflag = TTYDEF_OFLAG;
386 		tp->t_cflag = TTYDEF_CFLAG;
387 		tp->t_lflag = TTYDEF_LFLAG;
388 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
389 		tp->t_state = TS_ISOPEN|TS_CARR_ON;
390 		ttsetwater(tp);
391 	}
392 	error = (*tp->t_linesw->l_open)(dev, tp);
393 	if (error == 0) {
394 		tp->t_winsize.ws_row = ip->rows;
395 		tp->t_winsize.ws_col = ip->cols;
396 	} else if (first)
397 		iteoff(dev, 0);
398 	return (error);
399 }
400 
401 /*ARGSUSED*/
402 int
403 iteclose(dev_t dev, int flag, int mode, struct lwp *l)
404 {
405 	struct tty *tp = ite_tty[UNIT(dev)];
406 
407 	(*tp->t_linesw->l_close)(tp, flag);
408 	ttyclose(tp);
409 	iteoff(dev, 0);
410 #if 0
411 	tty_free(tp);
412 	ite_tty[UNIT(dev)] = (struct tty *)0;
413 #endif
414 	return(0);
415 }
416 
417 int
418 iteread(dev_t dev, struct uio *uio, int flag)
419 {
420 	struct tty *tp = ite_tty[UNIT(dev)];
421 
422 	return ((*tp->t_linesw->l_read)(tp, uio, flag));
423 }
424 
425 int
426 itewrite(dev_t dev, struct uio *uio, int flag)
427 {
428 	struct tty *tp = ite_tty[UNIT(dev)];
429 
430 	return ((*tp->t_linesw->l_write)(tp, uio, flag));
431 }
432 
433 int
434 itepoll(dev_t dev, int events, struct lwp *l)
435 {
436 	struct tty *tp = ite_tty[UNIT(dev)];
437 
438 	return ((*tp->t_linesw->l_poll)(tp, events, l));
439 }
440 
441 struct tty *
442 itetty(dev_t dev)
443 {
444 
445 	return (ite_tty[UNIT(dev)]);
446 }
447 
448 int
449 iteioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
450 {
451 	struct iterepeat *irp;
452 	struct tty *tp = ite_tty[UNIT(dev)];
453 	int error;
454 
455 	error = (*tp->t_linesw->l_ioctl)(tp, cmd, addr, flag, l);
456 	if (error != EPASSTHROUGH)
457 		return (error);
458 
459 	error = ttioctl(tp, cmd, addr, flag, l);
460 	if (error != EPASSTHROUGH)
461 		return (error);
462 
463 	switch (cmd) {
464 	case ITEIOCSKMAP:
465 		if (addr == 0)
466 			return(EFAULT);
467 		memcpy(&kbdmap, addr, sizeof(struct kbdmap));
468 		return(0);
469 
470 	case ITEIOCGKMAP:
471 		if (addr == NULL)
472 			return(EFAULT);
473 		memcpy(addr, &kbdmap, sizeof(struct kbdmap));
474 		return(0);
475 
476 	case ITEIOCGREPT:
477 		irp = (struct iterepeat *)addr;
478 		irp->start = start_repeat_timeo;
479 		irp->next = next_repeat_timeo;
480 
481 	case ITEIOCSREPT:
482 		irp = (struct iterepeat *)addr;
483 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
484 			return(EINVAL);
485 		start_repeat_timeo = irp->start;
486 		next_repeat_timeo = irp->next;
487 #if x68k
488 	case ITELOADFONT:
489 		if (addr) {
490 			memcpy(kern_font, addr, 4096 /*sizeof(kernel_font)*/);
491 			ite_set_glyph();
492 			return 0;
493 		} else
494 			return EFAULT;
495 
496 	case ITETVCTRL:
497 		if (addr && *(u_int8_t *)addr < 0x40) {
498 			return mfp_send_usart(* (u_int8_t *)addr);
499 		} else {
500 			return EFAULT;
501 		}
502 #endif
503 	}
504 	return (EPASSTHROUGH);
505 }
506 
507 void
508 itestart(struct tty *tp)
509 {
510 	struct clist *rbp;
511 	u_char buf[ITEBURST];
512 	int s, len;
513 
514 	getitesp(tp->t_dev);
515 	/*
516 	 * (Potentially) lower priority.  We only need to protect ourselves
517 	 * from keyboard interrupts since that is all that can affect the
518 	 * state of our tty (kernel printf doesn't go through this routine).
519 	 */
520 	s = spltty();
521 	if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
522 		goto out;
523 	tp->t_state |= TS_BUSY;
524 	rbp = &tp->t_outq;
525 	len = q_to_b(rbp, buf, ITEBURST);
526 	/*splx(s);*/
527 
528 	/* Here is a really good place to implement pre/jumpscroll() */
529 	ite_putstr(buf, len, tp->t_dev);
530 
531 	/*s = spltty();*/
532 	tp->t_state &= ~TS_BUSY;
533 	/* we have characters remaining. */
534 	if (ttypull(tp)) {
535 		tp->t_state |= TS_TIMEOUT;
536 		callout_schedule(&tp->t_rstrt_ch, 1);
537 	}
538 out:
539 	splx(s);
540 }
541 
542 /* XXX called after changes made in underlying grf layer. */
543 /* I want to nuke this */
544 void
545 ite_reinit(dev_t dev)
546 {
547 	struct ite_softc *ip;
548 	int unit = UNIT(dev);
549 
550 	/* XXX check whether when call from grf.c */
551 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
552 	    (ip = getitesp(dev)) == NULL)
553 		return;
554 
555 	ip->flags &= ~ITE_INITED;
556 	iteinit(dev);
557 }
558 
559 void
560 ite_reset(struct ite_softc *ip)
561 {
562 	int i;
563 
564 	ip->curx = 0;
565 	ip->cury = 0;
566 	ip->attribute = 0;
567 	ip->save_curx = 0;
568 	ip->save_cury = 0;
569 	ip->save_attribute = 0;
570 	ip->ap = ip->argbuf;
571 	ip->emul_level = EMUL_VT300_8;
572 	ip->eightbit_C1 = 0;
573 	ip->top_margin = 0;
574 	ip->bottom_margin = ip->rows - 1;
575 	ip->inside_margins = 0; /* origin mode == absolute */
576 	ip->linefeed_newline = 0;
577 	ip->auto_wrap = 1;
578 	ip->cursor_appmode = 0;
579 	ip->keypad_appmode = 0;
580 	ip->imode = 0;
581 	ip->key_repeat = 1;
582 	ip->G0 = CSET_ASCII;
583 	ip->G1 = CSET_JIS1983;
584 	ip->G2 = CSET_JISKANA;
585 	ip->G3 = CSET_JIS1990;
586 	ip->GL = &ip->G0;
587 	ip->GR = &ip->G1;
588 	ip->save_GL = 0;
589 	ip->save_char = 0;
590 	ip->fgcolor = 7;
591 	ip->bgcolor = 0;
592 	for (i = 0; i < ip->cols; i++)
593 		ip->tabs[i] = ((i & 7) == 0);
594 	/* XXX clear screen */
595 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
596 	attrclr(ip, 0, 0, ip->rows, ip->cols);
597 }
598 
599 /* Used in console at startup only */
600 int
601 ite_cnfilter(u_char c)
602 {
603 	static u_char mod = 0;
604 	struct key key;
605 	u_char code, up, mask;
606 	int s;
607 
608 	up = c & 0x80 ? 1 : 0;
609 	c &= 0x7f;
610 	code = 0;
611 
612 	s = spltty();
613 
614 	mask = 0;
615 	if (c >= KBD_LEFT_ALT && !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
616 		switch (c) {
617 		case KBD_LEFT_SHIFT:
618 			mask = KBD_MOD_SHIFT;
619 			break;
620 
621 		case KBD_LEFT_ALT:
622 			mask = KBD_MOD_LALT;
623 			break;
624 
625 		case KBD_RIGHT_ALT:
626 			mask = KBD_MOD_RALT;
627 			break;
628 
629 		case KBD_LEFT_META:
630 			mask = KBD_MOD_LMETA;
631 			break;
632 
633 		case KBD_RIGHT_META:
634 			mask = KBD_MOD_RMETA;
635 			break;
636 
637 		case KBD_CAPS_LOCK:
638 			/*
639 			 * capslock already behaves `right', don't need to
640 			 * keep track of the state in here.
641 			 */
642 			mask = KBD_MOD_CAPS;
643 			break;
644 
645 		case KBD_CTRL:
646 			mask = KBD_MOD_CTRL;
647 			break;
648 
649 		case KBD_RECONNECT:
650 			/* ite got 0xff */
651 			if (up)
652 				kbd_setLED();
653 			break;
654 		}
655 		if (mask & KBD_MOD_CAPS) {
656 			if (!up) {
657 				mod ^= KBD_MOD_CAPS;
658 				kbdled ^= LED_CAPS_LOCK;
659 				kbd_setLED();
660 			}
661 		} else if (up)
662 			mod &= ~mask;
663 		else mod |= mask;
664 		splx(s);
665 		return -1;
666 	}
667 
668 	if (up) {
669 		splx(s);
670 		return -1;
671 	}
672 
673 	/* translate modifiers */
674 	if (mod & KBD_MOD_SHIFT) {
675 		if (mod & KBD_MOD_ALT)
676 			key = kbdmap.alt_shift_keys[c];
677 		else
678 			key = kbdmap.shift_keys[c];
679 	} else if (mod & KBD_MOD_ALT)
680 		key = kbdmap.alt_keys[c];
681 	else {
682 		key = kbdmap.keys[c];
683 		/* if CAPS and key is CAPable (no pun intended) */
684 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
685 			key = kbdmap.shift_keys[c];
686 	}
687 	code = key.code;
688 
689 	/* if string return */
690 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
691 		splx(s);
692 		return -1;
693 	}
694 	/* handle dead keys */
695 	if (key.mode & KBD_MODE_DEAD) {
696 		splx(s);
697 		return -1;
698 	}
699 	if (mod & KBD_MOD_CTRL)
700 		code &= 0x1f;
701 	if (mod & KBD_MOD_META)
702 		code |= 0x80;
703 
704 	/* do console mapping. */
705 	code = code == '\r' ? '\n' : code;
706 
707 	splx(s);
708 	return (code);
709 }
710 
711 /* And now the old stuff. */
712 inline static void
713 itesendch(int ch)
714 {
715 	(*kbd_tty->t_linesw->l_rint)(ch, kbd_tty);
716 }
717 
718 
719 void
720 ite_filter(u_char c)
721 {
722 	static u_short mod = 0;
723 	unsigned char code, *str;
724 	u_short up, mask;
725 	struct key key;
726 	int s, i;
727 
728 	if (!kbd_ite || !(kbd_tty = ite_tty[device_unit(kbd_ite->device)]))
729 		return;
730 
731 	/* have to make sure we're at spltty in here */
732 	s = spltty();
733 
734 	up = c & 0x80 ? 1 : 0;
735 	c &= 0x7f;
736 	code = 0;
737 
738 	mask = 0;
739 	if (c >= KBD_LEFT_ALT &&
740 	    !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
741 		switch (c) {
742 		case KBD_LEFT_SHIFT:
743 			mask = KBD_MOD_SHIFT;
744 			break;
745 
746 		case KBD_LEFT_ALT:
747 			mask = KBD_MOD_LALT;
748 			break;
749 
750 		case KBD_RIGHT_ALT:
751 			mask = KBD_MOD_RALT;
752 			break;
753 
754 		case KBD_LEFT_META:
755 			mask = KBD_MOD_LMETA;
756 			break;
757 
758 		case KBD_RIGHT_META:
759 			mask = KBD_MOD_RMETA;
760 			break;
761 
762 		case KBD_CAPS_LOCK:
763 			/*
764 			 * capslock already behaves `right', don't need to keep
765 			 * track of the state in here.
766 			 */
767 			mask = KBD_MOD_CAPS;
768 			break;
769 
770 		case KBD_CTRL:
771 			mask = KBD_MOD_CTRL;
772 			break;
773 
774 		case KBD_OPT1:
775 			mask = KBD_MOD_OPT1;
776 			break;
777 
778 		case KBD_OPT2:
779 			mask = KBD_MOD_OPT2;
780 			break;
781 
782 		case KBD_RECONNECT:
783 			if (up) { /* ite got 0xff */
784 				kbd_setLED();
785 			}
786 			break;
787 		}
788 
789 		if (mask & KBD_MOD_CAPS) {
790 			if (!up) {
791 				mod ^= KBD_MOD_CAPS;
792 				kbdled ^= LED_CAPS_LOCK;
793 				kbd_setLED();
794 			}
795 		} else if (up) {
796 			mod &= ~mask;
797 		} else mod |= mask;
798 
799 		/*
800 		 * return even if it wasn't a modifier key, the other
801 		 * codes up here are either special (like reset warning),
802 		 * or not yet defined
803 		 */
804 		splx(s);
805 		return;
806 	}
807 
808 	if (up) {
809 		splx(s);
810 		return;
811 	}
812 
813 	/*
814 	 * intercept LAlt-LMeta-F1 here to switch back to original ascii-keymap.
815 	 * this should probably be configurable..
816 	 */
817 	if (mod == (KBD_MOD_LALT|KBD_MOD_LMETA) && c == 0x63) {
818 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
819 		splx(s);
820 		return;
821 	}
822 
823 	/* translate modifiers */
824 	if (mod & KBD_MOD_SHIFT) {
825 		if (mod & KBD_MOD_ALT)
826 			key = kbdmap.alt_shift_keys[c];
827 		else
828 			key = kbdmap.shift_keys[c];
829 	} else if (mod & KBD_MOD_ALT)
830 		key = kbdmap.alt_keys[c];
831 	else {
832 		key = kbdmap.keys[c];
833 		/* if CAPS and key is CAPable (no pun intended) */
834 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
835 			key = kbdmap.shift_keys[c];
836 		else if ((mod & KBD_MOD_OPT2) && (key.mode & KBD_MODE_KPAD))
837 			key = kbdmap.shift_keys[c];
838 	}
839 	code = key.code;
840 
841 	/* handle dead keys */
842 	if (key.mode & KBD_MODE_DEAD) {
843 		splx(s);
844 		return;
845 	}
846 	/* if not string, apply META and CTRL modifiers */
847 	if (! (key.mode & KBD_MODE_STRING)
848 	    && (!(key.mode & KBD_MODE_KPAD) ||
849 		(kbd_ite && !kbd_ite->keypad_appmode))) {
850 		if ((mod & KBD_MOD_CTRL) &&
851 		    (code == ' ' || (code >= '@' && code <= 'z')))
852 			code &= 0x1f;
853 		if (mod & KBD_MOD_META)
854 			code |= 0x80;
855 	} else if ((key.mode & KBD_MODE_KPAD) &&
856 	       (kbd_ite && kbd_ite->keypad_appmode)) {
857 		static const char * const in = "0123456789-+.\r()/*";
858 		static const char * const out = "pqrstuvwxymlnMPQRS";
859 		char *cp = strchr(in, code);
860 
861 		/*
862 		 * keypad-appmode sends SS3 followed by the above
863 		 * translated character
864 		 */
865 		(*kbd_tty->t_linesw->l_rint)(27, kbd_tty);
866 		(*kbd_tty->t_linesw->l_rint)('O', kbd_tty);
867 		(*kbd_tty->t_linesw->l_rint)(out[cp - in], kbd_tty);
868 		splx(s);
869 		return;
870 	} else {
871 		/* *NO* I don't like this.... */
872 		static u_char app_cursor[] =
873 		{
874 		  3, 27, 'O', 'A',
875 		  3, 27, 'O', 'B',
876 		  3, 27, 'O', 'C',
877 		  3, 27, 'O', 'D'};
878 
879 		str = kbdmap.strings + code;
880 		/*
881 		 * if this is a cursor key, AND it has the default
882 		 * keymap setting, AND we're in app-cursor mode, switch
883 		 * to the above table. This is *nasty* !
884 		 */
885 		if (c >= 0x3b && c <= 0x3e && kbd_ite->cursor_appmode
886 		    && !memcmp(str, "\x03\x1b[", 3) &&
887 		    strchr("ABCD", str[3]))
888 			str = app_cursor + 4 * (str[3] - 'A');
889 
890 		/*
891 		 * using a length-byte instead of 0-termination allows
892 		 * to embed \0 into strings, although this is not used
893 		 * in the default keymap
894 		 */
895 		for (i = *str++; i; i--)
896 			(*kbd_tty->t_linesw->l_rint)(*str++, kbd_tty);
897 		splx(s);
898 		return;
899 	}
900 	(*kbd_tty->t_linesw->l_rint)(code, kbd_tty);
901 
902 	splx(s);
903 	return;
904 }
905 
906 /* helper functions, makes the code below more readable */
907 inline static void
908 ite_sendstr(struct ite_softc *ip, const char *str)
909 {
910 	while (*str)
911 		itesendch(*str++);
912 }
913 
914 inline static void
915 alignment_display(struct ite_softc *ip)
916 {
917 	int i, j;
918 
919 	for (j = 0; j < ip->rows; j++)
920 		for (i = 0; i < ip->cols; i++)
921 			SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
922 	attrclr(ip, 0, 0, ip->rows, ip->cols);
923 }
924 
925 inline static void
926 snap_cury(struct ite_softc *ip)
927 {
928 	if (ip->inside_margins) {
929 		if (ip->cury < ip->top_margin)
930 			ip->cury = ip->top_margin;
931 		if (ip->cury > ip->bottom_margin)
932 			ip->cury = ip->bottom_margin;
933 	}
934 }
935 
936 inline static void
937 ite_dnchar(struct ite_softc *ip, int n)
938 {
939 	n = min(n, ip->cols - ip->curx);
940 	if (n < ip->cols - ip->curx) {
941 		SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
942 		attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
943 			1, ip->cols - ip->curx - n);
944 		attrclr(ip, ip->cury, ip->cols - n, 1, n);
945 	}
946 	while (n-- > 0)
947 		SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
948 }
949 
950 static void
951 ite_inchar(struct ite_softc *ip, int n)
952 {
953 	int c = ip->save_char;
954 	ip->save_char = 0;
955 	n = min(n, ip->cols - ip->curx);
956 	if (n < ip->cols - ip->curx) {
957 		SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
958 		attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
959 			1, ip->cols - ip->curx - n);
960 		attrclr(ip, ip->cury, ip->curx, 1, n);
961 	}
962 	while (n--)
963 		SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
964 	ip->save_char = c;
965 }
966 
967 inline static void
968 ite_clrtoeol(struct ite_softc *ip)
969 {
970 	int y = ip->cury, x = ip->curx;
971 	if (ip->cols - x > 0) {
972 		SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
973 		attrclr(ip, y, x, 1, ip->cols - x);
974 	}
975 }
976 
977 inline static void
978 ite_clrtobol(struct ite_softc *ip)
979 {
980 	int y = ip->cury, x = min(ip->curx + 1, ip->cols);
981 	SUBR_CLEAR(ip, y, 0, 1, x);
982 	attrclr(ip, y, 0, 1, x);
983 }
984 
985 inline static void
986 ite_clrline(struct ite_softc *ip)
987 {
988 	int y = ip->cury;
989 	SUBR_CLEAR(ip, y, 0, 1, ip->cols);
990 	attrclr(ip, y, 0, 1, ip->cols);
991 }
992 
993 inline static void
994 ite_clrtoeos(struct ite_softc *ip)
995 {
996 	ite_clrtoeol(ip);
997 	if (ip->cury < ip->rows - 1) {
998 		SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
999 		attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1000 	}
1001 }
1002 
1003 inline static void
1004 ite_clrtobos(struct ite_softc *ip)
1005 {
1006 	ite_clrtobol(ip);
1007 	if (ip->cury > 0) {
1008 		SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1009 		attrclr(ip, 0, 0, ip->cury, ip->cols);
1010 	}
1011 }
1012 
1013 inline static void
1014 ite_clrscreen(struct ite_softc *ip)
1015 {
1016 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1017 	attrclr(ip, 0, 0, ip->rows, ip->cols);
1018 }
1019 
1020 
1021 
1022 inline static void
1023 ite_dnline(struct ite_softc *ip, int n)
1024 {
1025 	/*
1026 	 * interesting.. if the cursor is outside the scrolling
1027 	 * region, this command is simply ignored..
1028 	 */
1029 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1030 		return;
1031 
1032 	n = min(n, ip->bottom_margin + 1 - ip->cury);
1033 	if (n <= ip->bottom_margin - ip->cury) {
1034 		SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1035 		attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1036 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1037 	}
1038 	SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1039 	attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1040 }
1041 
1042 inline static void
1043 ite_inline(struct ite_softc *ip, int n)
1044 {
1045 	/*
1046 	 * interesting.. if the cursor is outside the scrolling
1047 	 * region, this command is simply ignored..
1048 	 */
1049 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1050 		return;
1051 
1052 	if (n <= 0)
1053 		n = 1;
1054 	else n = min(n, ip->bottom_margin + 1 - ip->cury);
1055 	if (n <= ip->bottom_margin  - ip->cury) {
1056 		SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1057 		attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1058 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1059 	}
1060 	SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1061 	attrclr(ip, ip->cury, 0, n, ip->cols);
1062 	ip->curx = 0;
1063 }
1064 
1065 inline static void
1066 ite_index(struct ite_softc *ip)
1067 {
1068 	++ip->cury;
1069 	if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) {
1070 		ip->cury--;
1071 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1072 		ite_clrline(ip);
1073 	}
1074 	/*clr_attr(ip, ATTR_INV);*/
1075 }
1076 
1077 inline static void
1078 ite_lf(struct ite_softc *ip)
1079 {
1080 	++ip->cury;
1081 	if (ip->cury > ip->bottom_margin) {
1082 		ip->cury--;
1083 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1084 		ite_clrline(ip);
1085 	}
1086 /*	SUBR_CURSOR(ip, MOVE_CURSOR);*/
1087 	/*clr_attr(ip, ATTR_INV);*/
1088 	/* reset character set ... thanks for mohta. */
1089 	ip->G0 = CSET_ASCII;
1090 	ip->G1 = CSET_JIS1983;
1091 	ip->G2 = CSET_JISKANA;
1092 	ip->G3 = CSET_JIS1990;
1093 	ip->GL = &ip->G0;
1094 	ip->GR = &ip->G1;
1095 	ip->save_GL = 0;
1096 	ip->save_char = 0;
1097 }
1098 
1099 inline static void
1100 ite_crlf(struct ite_softc *ip)
1101 {
1102 	ip->curx = 0;
1103 	ite_lf (ip);
1104 }
1105 
1106 inline static void
1107 ite_cr(struct ite_softc *ip)
1108 {
1109 	if (ip->curx) {
1110 		ip->curx = 0;
1111 	}
1112 }
1113 
1114 inline static void
1115 ite_rlf(struct ite_softc *ip)
1116 {
1117 	ip->cury--;
1118 	if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) {
1119 		ip->cury++;
1120 		SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1121 		ite_clrline(ip);
1122 	}
1123 	clr_attr(ip, ATTR_INV);
1124 }
1125 
1126 inline static int
1127 atoi(const char *cp)
1128 {
1129 	int n;
1130 
1131 	for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1132 		n = n * 10 + *cp - '0';
1133 	return n;
1134 }
1135 
1136 inline static int
1137 ite_argnum(struct ite_softc *ip)
1138 {
1139 	char ch;
1140 	int n;
1141 
1142 	/* convert argument string into number */
1143 	if (ip->ap == ip->argbuf)
1144 		return 1;
1145 	ch = *ip->ap;
1146 	*ip->ap = 0;
1147 	n = atoi(ip->argbuf);
1148 	*ip->ap = ch;
1149 
1150 	return n;
1151 }
1152 
1153 inline static int
1154 ite_zargnum(struct ite_softc *ip)
1155 {
1156 	char ch;
1157 	int n;
1158 
1159 	/* convert argument string into number */
1160 	if (ip->ap == ip->argbuf)
1161 		return 0;
1162 	ch = *ip->ap;
1163 	*ip->ap = 0;	/* terminate string */
1164 	n = atoi(ip->argbuf);
1165 	*ip->ap = ch;
1166 
1167 	return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1168 }
1169 
1170 void
1171 ite_putstr(const u_char *s, int len, dev_t dev)
1172 {
1173 	struct ite_softc *ip;
1174 	int i;
1175 
1176 	ip = getitesp(dev);
1177 
1178 	/* XXX avoid problems */
1179 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1180 	  	return;
1181 
1182 	SUBR_CURSOR(ip, START_CURSOROPT);
1183 	for (i = 0; i < len; i++)
1184 		if (s[i])
1185 			iteputchar(s[i], ip);
1186 	SUBR_CURSOR(ip, END_CURSOROPT);
1187 }
1188 
1189 void
1190 iteputchar(int c, struct ite_softc *ip)
1191 {
1192 	int n, x, y;
1193 	char *cp;
1194 
1195 	if (c >= 0x20 && ip->escape) {
1196 		switch (ip->escape) {
1197 
1198 		case ESC:
1199 			switch (c) {
1200 				/* first 7bit equivalents for the 8bit control characters */
1201 
1202 			case 'D':
1203 				c = IND;
1204 				ip->escape = 0;
1205 				break; /* and fall into the next switch below (same for all `break') */
1206 
1207 			case 'E':
1208 				/* next line */
1209 				c = NEL;
1210 				ip->escape = 0;
1211 				break;
1212 
1213 			case 'H':
1214 				/* set TAB at current col */
1215 				c = HTS;
1216 				ip->escape = 0;
1217 				break;
1218 
1219 			case 'M':
1220 				/* reverse index */
1221 				c = RI;
1222 				ip->escape = 0;
1223 				break;
1224 
1225 			case 'N':
1226 				/* single shift G2 */
1227 				c = SS2;
1228 				ip->escape = 0;
1229 				break;
1230 
1231 			case 'O':
1232 				/* single shift G3 */
1233 				c = SS3;
1234 				ip->escape = 0;
1235 				break;
1236 
1237 			case 'P':
1238 				/* DCS detected */
1239 				c = DCS;
1240 				ip->escape = 0;
1241 				break;
1242 
1243 			case '[':
1244 				c = CSI;
1245 				ip->escape = 0;
1246 				break;
1247 
1248 			case '\\':
1249 				/* String Terminator */
1250 				c = ST;
1251 				ip->escape = 0;
1252 				break;
1253 
1254 			case ']':
1255 				c = OSC;
1256 				ip->escape = 0;
1257 				break;
1258 
1259 			case '^':
1260 				c = PM;
1261 				ip->escape = 0;
1262 				break;
1263 
1264 			case '_':
1265 				c = APC;
1266 				ip->escape = 0;
1267 				break;
1268 
1269 
1270 			/* introduces 7/8bit control */
1271 			case ' ':
1272 				/* can be followed by either F or G */
1273 				ip->escape = ' ';
1274 				break;
1275 
1276 
1277 			/* a lot of character set selections, not yet used...
1278 			   94-character sets: */
1279 			case '(':	/* G0 */
1280 			case ')':	/* G1 */
1281 				ip->escape = c;
1282 				return;
1283 
1284 			case '*':	/* G2 */
1285 			case '+':	/* G3 */
1286 			case 'B':	/* ASCII */
1287 			case 'A':	/* ISO latin 1 */
1288 			case '<':	/* user preferred suplemental */
1289 			case '0':	/* dec special graphics */
1290 
1291 			/* 96-character sets: */
1292 			case '-':	/* G1 */
1293 			case '.':	/* G2 */
1294 			case '/':	/* G3 */
1295 
1296 			/* national character sets: */
1297 			case '4':	/* dutch */
1298 			case '5':
1299 			case 'C':	/* finnish */
1300 			case 'R':	/* french */
1301 			case 'Q':	/* french canadian */
1302 			case 'K':	/* german */
1303 			case 'Y':	/* italian */
1304 			case '6':	/* norwegian/danish */
1305 			/* note: %5 and %6 are not supported (two chars..) */
1306 
1307 				ip->escape = 0;
1308 				/* just ignore for now */
1309 				return;
1310 
1311 			/* 94-multibyte character sets designate */
1312 			case '$':
1313 				ip->escape = '$';
1314 				return;
1315 
1316 			/* locking shift modes */
1317 			case '`':
1318 				ip->GR = &ip->G1;
1319 				ip->escape = 0;
1320 				return;
1321 
1322 			case 'n':
1323 				ip->GL = &ip->G2;
1324 				ip->escape = 0;
1325 				return;
1326 
1327 			case '}':
1328 				ip->GR = &ip->G2;
1329 				ip->escape = 0;
1330 				return;
1331 
1332 			case 'o':
1333 				ip->GL = &ip->G3;
1334 				ip->escape = 0;
1335 				return;
1336 
1337 			case '|':
1338 				ip->GR = &ip->G3;
1339 				ip->escape = 0;
1340 				return;
1341 
1342 			case '~':
1343 				ip->GR = &ip->G1;
1344 				ip->escape = 0;
1345 				return;
1346 
1347 			/* font width/height control */
1348 			case '#':
1349 				ip->escape = '#';
1350 				return;
1351 
1352 			case 'c':
1353 				/* hard terminal reset .. */
1354 				ite_reset(ip);
1355 				SUBR_CURSOR(ip, MOVE_CURSOR);
1356 				ip->escape = 0;
1357 				return;
1358 
1359 
1360 			case '7':
1361 				/* save cursor */
1362 				ip->save_curx = ip->curx;
1363 				ip->save_cury = ip->cury;
1364 				ip->save_attribute = ip->attribute;
1365 				ip->sc_om = ip->inside_margins;
1366 				ip->sc_G0 = ip->G0;
1367 				ip->sc_G1 = ip->G1;
1368 				ip->sc_G2 = ip->G2;
1369 				ip->sc_G3 = ip->G3;
1370 				ip->sc_GL = ip->GL;
1371 				ip->sc_GR = ip->GR;
1372 				ip->escape = 0;
1373 				return;
1374 
1375 			case '8':
1376 				/* restore cursor */
1377 				ip->curx = ip->save_curx;
1378 				ip->cury = ip->save_cury;
1379 				ip->attribute = ip->save_attribute;
1380 				ip->inside_margins = ip->sc_om;
1381 				ip->G0 = ip->sc_G0;
1382 				ip->G1 = ip->sc_G1;
1383 				ip->G2 = ip->sc_G2;
1384 				ip->G3 = ip->sc_G3;
1385 				ip->GL = ip->sc_GL;
1386 				ip->GR = ip->sc_GR;
1387 				SUBR_CURSOR(ip, MOVE_CURSOR);
1388 				ip->escape = 0;
1389 				return;
1390 
1391 			case '=':
1392 				/* keypad application mode */
1393 				ip->keypad_appmode = 1;
1394 				ip->escape = 0;
1395 				return;
1396 
1397 			case '>':
1398 				/* keypad numeric mode */
1399 				ip->keypad_appmode = 0;
1400 				ip->escape = 0;
1401 				return;
1402 
1403 			case 'Z':	/* request ID */
1404 				if (ip->emul_level == EMUL_VT100)
1405 					ite_sendstr(ip, "\033[61;0c"); /* XXX not clean */
1406 				else
1407 					ite_sendstr(ip, "\033[63;0c"); /* XXX not clean */
1408 				ip->escape = 0;
1409 				return;
1410 
1411 			/* default catch all for not recognized ESC sequences */
1412 			default:
1413 				ip->escape = 0;
1414 				return;
1415 			}
1416 			break;
1417 
1418 
1419 		case '(': /* designate G0 */
1420 			switch (c) {
1421 			case 'B': /* USASCII */
1422 				ip->G0 = CSET_ASCII;
1423 				ip->escape = 0;
1424 				return;
1425 			case 'I':
1426 				ip->G0 = CSET_JISKANA;
1427 				ip->escape = 0;
1428 				return;
1429 			case 'J':
1430 				ip->G0 = CSET_JISROMA;
1431 				ip->escape = 0;
1432 				return;
1433 			case 'A': /* British or ISO-Latin-1 */
1434 			case 'H': /* Swedish */
1435 			case 'K': /* German */
1436 			case 'R': /* French */
1437 			case 'Y': /* Italian */
1438 			case 'Z': /* Spanish */
1439 			default:
1440 				/* not supported */
1441 				ip->escape = 0;
1442 				return;
1443 			}
1444 
1445 		case ')': /* designate G1 */
1446 			ip->escape = 0;
1447 			return;
1448 
1449 		case '$': /* 94-multibyte character set */
1450 			switch (c) {
1451 			case '@':
1452 				ip->G0 = CSET_JIS1978;
1453 				ip->escape = 0;
1454 				return;
1455 			case 'B':
1456 				ip->G0 = CSET_JIS1983;
1457 				ip->escape = 0;
1458 				return;
1459 			case 'D':
1460 				ip->G0 = CSET_JIS1990;
1461 				ip->escape = 0;
1462 				return;
1463 			default:
1464 				/* not supported */
1465 				ip->escape = 0;
1466 				return;
1467 			}
1468 
1469 		case ' ':
1470 			switch (c) {
1471 			case 'F':
1472 				ip->eightbit_C1 = 0;
1473 				ip->escape = 0;
1474 				return;
1475 
1476 			case 'G':
1477 				ip->eightbit_C1 = 1;
1478 				ip->escape = 0;
1479 				return;
1480 
1481 			default:
1482 				/* not supported */
1483 				ip->escape = 0;
1484 				return;
1485 			}
1486 			break;
1487 
1488 		case '#':
1489 			switch (c) {
1490 			case '5':
1491 				/* single height, single width */
1492 				ip->escape = 0;
1493 				return;
1494 
1495 			case '6':
1496 				/* double width, single height */
1497 				ip->escape = 0;
1498 				return;
1499 
1500 			case '3':
1501 				/* top half */
1502 				ip->escape = 0;
1503 				return;
1504 
1505 			case '4':
1506 				/* bottom half */
1507 				ip->escape = 0;
1508 				return;
1509 
1510 			case '8':
1511 				/* screen alignment pattern... */
1512 				alignment_display(ip);
1513 				ip->escape = 0;
1514 				return;
1515 
1516 			default:
1517 				ip->escape = 0;
1518 				return;
1519 			}
1520 			break;
1521 
1522 
1523 
1524 		case CSI:
1525 			/* the biggie... */
1526 			switch (c) {
1527 			case '0': case '1': case '2': case '3': case '4':
1528 			case '5': case '6': case '7': case '8': case '9':
1529 			case ';': case '\"': case '$': case '>':
1530 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1531 					*ip->ap++ = c;
1532 				return;
1533 
1534 			case 'p':
1535 				*ip->ap = 0;
1536 				if (!strncmp(ip->argbuf, "61\"", 3))
1537 					ip->emul_level = EMUL_VT100;
1538 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1539 					 || !strncmp(ip->argbuf, "62;1\"", 5))
1540 					ip->emul_level = EMUL_VT300_7;
1541 				else
1542 					ip->emul_level = EMUL_VT300_8;
1543 				ip->escape = 0;
1544 				return;
1545 
1546 
1547 			case '?':
1548 				*ip->ap = 0;
1549 				ip->escape = '?';
1550 				ip->ap = ip->argbuf;
1551 				return;
1552 
1553 
1554 			case 'c':
1555 				/* device attributes */
1556 				*ip->ap = 0;
1557 				if (ip->argbuf[0] == '>') {
1558 					ite_sendstr(ip, "\033[>24;0;0;0c");
1559 				} else
1560 					switch (ite_zargnum(ip)) {
1561 					case 0:
1562 						/* primary DA request, send primary DA response */
1563 						if (ip->emul_level == EMUL_VT100)
1564 							ite_sendstr(ip, "\033[?1;1c");
1565 						else
1566 							ite_sendstr(ip, "\033[63;0c");
1567 						break;
1568 					}
1569 				ip->escape = 0;
1570 				return;
1571 
1572 			case 'n':
1573 				switch (ite_zargnum(ip)) {
1574 				case 5:
1575 					ite_sendstr(ip, "\033[0n");	/* no malfunction */
1576 					break;
1577 				case 6:
1578 					/* cursor position report */
1579 					snprintf(ip->argbuf, sizeof(ip->argbuf),
1580 					    "\033[%d;%dR",
1581 					     ip->cury + 1, ip->curx + 1);
1582 					ite_sendstr(ip, ip->argbuf);
1583 					break;
1584 				}
1585 				ip->escape = 0;
1586 				return;
1587 
1588 
1589 			case 'x':
1590 				switch (ite_zargnum(ip)) {
1591 				case 0:
1592 					/* Fake some terminal parameters.  */
1593 					ite_sendstr(ip, "\033[2;1;1;112;112;1;0x");
1594 					break;
1595 				case 1:
1596 					ite_sendstr(ip, "\033[3;1;1;112;112;1;0x");
1597 					break;
1598 				}
1599 				ip->escape = 0;
1600 				return;
1601 
1602 
1603 			case 'g':
1604 				/* clear tabs */
1605 				switch (ite_zargnum(ip)) {
1606 				case 0:
1607 					if (ip->curx < ip->cols)
1608 						ip->tabs[ip->curx] = 0;
1609 					break;
1610 				case 3:
1611 					for (n = 0; n < ip->cols; n++)
1612 						ip->tabs[n] = 0;
1613 					break;
1614 
1615 				default:
1616 					/* ignore */
1617 					break;
1618 				}
1619 				ip->escape = 0;
1620 				return;
1621 
1622 
1623 			case 'h': /* set mode */
1624 			case 'l': /* reset mode */
1625 				n = ite_zargnum(ip);
1626 				switch (n) {
1627 				case 4:
1628 					ip->imode = (c == 'h');	/* insert/replace mode */
1629 					break;
1630 				case 20:
1631 					ip->linefeed_newline = (c == 'h');
1632 					break;
1633 				}
1634 				ip->escape = 0;
1635 				return;
1636 
1637 
1638 			case 'M':
1639 				/* delete line */
1640 				ite_dnline(ip, ite_argnum(ip));
1641 				ip->escape = 0;
1642 				return;
1643 
1644 
1645 			case 'L':
1646 				/* insert line */
1647 				ite_inline(ip, ite_argnum(ip));
1648 				ip->escape = 0;
1649 				return;
1650 
1651 
1652 			case 'P':
1653 				/* delete char */
1654 				ite_dnchar(ip, ite_argnum(ip));
1655 				ip->escape = 0;
1656 				return;
1657 
1658 
1659 			case '@':
1660 				/* insert char(s) */
1661 				ite_inchar(ip, ite_argnum(ip));
1662 				ip->escape = 0;
1663 				return;
1664 
1665 			case '!':
1666 				/* soft terminal reset */
1667 				ip->escape = 0; /* XXX */
1668 				return;
1669 
1670 			case 'G':
1671 				/* this one was *not* in my vt320 manual but in
1672 				   a vt320 termcap entry.. who is right?
1673 				   It's supposed to set the horizontal cursor position. */
1674 				*ip->ap = 0;
1675 				x = atoi(ip->argbuf);
1676 				if (x)
1677 					x--;
1678 				ip->curx = min(x, ip->cols - 1);
1679 				ip->escape = 0;
1680 				SUBR_CURSOR(ip, MOVE_CURSOR);
1681 				clr_attr(ip, ATTR_INV);
1682 				return;
1683 
1684 
1685 			case 'd':
1686 				/* same thing here, this one's for setting the absolute
1687 				   vertical cursor position. Not documented... */
1688 				*ip->ap = 0;
1689 				y = atoi(ip->argbuf);
1690 				if (y)
1691 					y--;
1692 				if (ip->inside_margins)
1693 					y += ip->top_margin;
1694 				ip->cury = min(y, ip->rows - 1);
1695 				ip->escape = 0;
1696 				snap_cury(ip);
1697 				SUBR_CURSOR(ip, MOVE_CURSOR);
1698 				clr_attr(ip, ATTR_INV);
1699 				return;
1700 
1701 
1702 			case 'H':
1703 			case 'f':
1704 				*ip->ap = 0;
1705 				y = atoi(ip->argbuf);
1706 				x = 0;
1707 				cp = strchr(ip->argbuf, ';');
1708 				if (cp)
1709 					x = atoi(cp + 1);
1710 				if (x)
1711 					x--;
1712 				if (y)
1713 					y--;
1714 				if (ip->inside_margins)
1715 					y += ip->top_margin;
1716 				ip->cury = min(y, ip->rows - 1);
1717 				ip->curx = min(x, ip->cols - 1);
1718 				ip->escape = 0;
1719 				snap_cury(ip);
1720 				SUBR_CURSOR(ip, MOVE_CURSOR);
1721 				/*clr_attr(ip, ATTR_INV);*/
1722 				return;
1723 
1724 			case 'A':
1725 				/* cursor up */
1726 				n = ite_argnum(ip);
1727 				n = ip->cury - (n ? n : 1);
1728 				if (n < 0)
1729 					n = 0;
1730 				if (ip->inside_margins)
1731 					n = max(ip->top_margin, n);
1732 				else if (n == ip->top_margin - 1)
1733 					/* allow scrolling outside region, but don't scroll out
1734 					   of active region without explicit CUP */
1735 					n = ip->top_margin;
1736 				ip->cury = n;
1737 				ip->escape = 0;
1738 				SUBR_CURSOR(ip, MOVE_CURSOR);
1739 				clr_attr(ip, ATTR_INV);
1740 				return;
1741 
1742 			case 'B':
1743 				/* cursor down */
1744 				n = ite_argnum(ip);
1745 				n = ip->cury + (n ? n : 1);
1746 				n = min(ip->rows - 1, n);
1747 #if 0
1748 				if (ip->inside_margins)
1749 #endif
1750 					n = min(ip->bottom_margin, n);
1751 #if 0
1752 				else if (n == ip->bottom_margin + 1)
1753 					/* allow scrolling outside region, but don't scroll out
1754 					   of active region without explicit CUP */
1755 					n = ip->bottom_margin;
1756 #endif
1757 				ip->cury = n;
1758 				ip->escape = 0;
1759 				SUBR_CURSOR(ip, MOVE_CURSOR);
1760 				clr_attr(ip, ATTR_INV);
1761 				return;
1762 
1763 			case 'C':
1764 				/* cursor forward */
1765 				n = ite_argnum(ip);
1766 				n = n ? n : 1;
1767 				ip->curx = min(ip->curx + n, ip->cols - 1);
1768 				ip->escape = 0;
1769 				SUBR_CURSOR(ip, MOVE_CURSOR);
1770 				clr_attr(ip, ATTR_INV);
1771 				return;
1772 
1773 			case 'D':
1774 				/* cursor backward */
1775 				n = ite_argnum(ip);
1776 				n = n ? n : 1;
1777 				n = ip->curx - n;
1778 				ip->curx = n >= 0 ? n : 0;
1779 				ip->escape = 0;
1780 				SUBR_CURSOR(ip, MOVE_CURSOR);
1781 				clr_attr(ip, ATTR_INV);
1782 				return;
1783 
1784 
1785 			case 'J':
1786 				/* erase screen */
1787 				*ip->ap = 0;
1788 				n = ite_zargnum(ip);
1789 				if (n == 0)
1790 					ite_clrtoeos(ip);
1791 				else if (n == 1)
1792 					ite_clrtobos(ip);
1793 				else if (n == 2)
1794 					ite_clrscreen(ip);
1795 				ip->escape = 0;
1796 				return;
1797 
1798 
1799 			case 'K':
1800 				/* erase line */
1801 				n = ite_zargnum(ip);
1802 				if (n == 0)
1803 					ite_clrtoeol(ip);
1804 				else if (n == 1)
1805 					ite_clrtobol(ip);
1806 				else if (n == 2)
1807 					ite_clrline(ip);
1808 				ip->escape = 0;
1809 				return;
1810 
1811 			case 'S':
1812 				/* scroll up */
1813 				n = ite_zargnum(ip);
1814 				if (n <= 0)
1815 					n = 1;
1816 				else if (n > ip->rows-1)
1817 					n = ip->rows-1;
1818 				SUBR_SCROLL(ip, ip->rows-1, 0, n, SCROLL_UP);
1819 				ip->escape = 0;
1820 				return;
1821 
1822 			case 'T':
1823 				/* scroll down */
1824 				n = ite_zargnum(ip);
1825 				if (n <= 0)
1826 					n = 1;
1827 				else if (n > ip->rows-1)
1828 					n = ip->rows-1;
1829 				SUBR_SCROLL(ip, 0, 0, n, SCROLL_DOWN);
1830 				ip->escape = 0;
1831 				return;
1832 
1833 			case 'X':
1834 				/* erase character */
1835 				n = ite_argnum(ip) - 1;
1836 				n = min(n, ip->cols - 1 - ip->curx);
1837 				for (; n >= 0; n--) {
1838 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1839 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1840 				}
1841 				ip->escape = 0;
1842 				return;
1843 
1844 
1845 			case '}': case '`':
1846 				/* status line control */
1847 				ip->escape = 0;
1848 				return;
1849 
1850 			case 'r':
1851 				/* set scrolling region */
1852 				ip->escape = 0;
1853 				*ip->ap = 0;
1854 				x = atoi(ip->argbuf);
1855 				x = x ? x : 1;
1856 				y = ip->rows;
1857 				cp = strchr(ip->argbuf, ';');
1858 				if (cp) {
1859 					y = atoi(cp + 1);
1860 					y = y ? y : ip->rows;
1861 				}
1862 				if (y <= x)
1863 					return;
1864 				x--;
1865 				y--;
1866 				ip->top_margin = min(x, ip->rows - 2);
1867 				ip->bottom_margin = min(y, ip->rows - 1);
1868 				if (ip->inside_margins) {
1869 					ip->cury = ip->top_margin;
1870 				} else
1871 					ip->cury = 0;
1872 				ip->curx = 0;
1873 				return;
1874 
1875 
1876 			case 'm':
1877 				/* big attribute setter/resetter */
1878 			{
1879 				char *c_p;
1880 				*ip->ap = 0;
1881 				/* kludge to make CSIm work (== CSI0m) */
1882 				if (ip->ap == ip->argbuf)
1883 					ip->ap++;
1884 				for (c_p = ip->argbuf; c_p < ip->ap; ) {
1885 					switch (*c_p) {
1886 					case 0:
1887 					case '0':
1888 						clr_attr(ip, ATTR_ALL);
1889 						ip->fgcolor = 7;
1890 						ip->bgcolor = 0;
1891 						c_p++;
1892 						break;
1893 
1894 					case '1':
1895 						set_attr(ip, ATTR_BOLD);
1896 						c_p++;
1897 						break;
1898 
1899 					case '2':
1900 						switch (c_p[1]) {
1901 						case '2':
1902 							clr_attr(ip, ATTR_BOLD);
1903 							c_p += 2;
1904 							break;
1905 
1906 						case '4':
1907 							clr_attr(ip, ATTR_UL);
1908 							c_p += 2;
1909 							break;
1910 
1911 						case '5':
1912 							clr_attr(ip, ATTR_BLINK);
1913 							c_p += 2;
1914 							break;
1915 
1916 						case '7':
1917 							clr_attr(ip, ATTR_INV);
1918 							c_p += 2;
1919 							break;
1920 
1921 						default:
1922 							c_p++;
1923 							break;
1924 						}
1925 						break;
1926 
1927 					case '3':
1928 						switch (c_p[1]) {
1929 						case '0': case '1': case '2': case '3':
1930 						case '4': case '5': case '6': case '7':
1931 							/* foreground colors */
1932 							ip->fgcolor = c_p[1] - '0';
1933 							c_p += 2;
1934 							break;
1935 						default:
1936 							c_p++;
1937 							break;
1938 						}
1939 						break;
1940 
1941 					case '4':
1942 						switch (c_p[1]) {
1943 						case '0': case '1': case '2': case '3':
1944 						case '4': case '5': case '6': case '7':
1945 							/* background colors */
1946 							ip->bgcolor = c_p[1] - '0';
1947 							c_p += 2;
1948 							break;
1949 						default:
1950 							set_attr(ip, ATTR_UL);
1951 							c_p++;
1952 							break;
1953 						}
1954 						break;
1955 
1956 					case '5':
1957 						set_attr(ip, ATTR_BLINK);
1958 						c_p++;
1959 						break;
1960 
1961 					case '7':
1962 						set_attr(ip, ATTR_INV);
1963 						c_p++;
1964 						break;
1965 
1966 					default:
1967 						c_p++;
1968 						break;
1969 					}
1970 				}
1971 
1972 			}
1973 				ip->escape = 0;
1974 				return;
1975 
1976 
1977 			case 'u':
1978 				/* DECRQTSR */
1979 				ite_sendstr(ip, "\033P\033\\");
1980 				ip->escape = 0;
1981 				return;
1982 
1983 			default:
1984 				ip->escape = 0;
1985 				return;
1986 			}
1987 			break;
1988 
1989 
1990 
1991 		case '?':	/* CSI ? */
1992 			switch (c) {
1993 			case '0': case '1': case '2': case '3': case '4':
1994 			case '5': case '6': case '7': case '8': case '9':
1995 			case ';': case '\"': case '$':
1996 				/* Don't fill the last character; it's needed.  */
1997 				/* XXX yeah, where ?? */
1998 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
1999 					*ip->ap++ = c;
2000 				return;
2001 
2002 
2003 			case 'n':
2004 				/* Terminal Reports */
2005 				*ip->ap = 0;
2006 				if (ip->ap == &ip->argbuf[2]) {
2007 					if (!strncmp(ip->argbuf, "15", 2))
2008 						/* printer status: no printer */
2009 						ite_sendstr(ip, "\033[13n");
2010 
2011 					else if (!strncmp(ip->argbuf, "25", 2))
2012 						/* udk status */
2013 						ite_sendstr(ip, "\033[20n");
2014 
2015 					else if (!strncmp(ip->argbuf, "26", 2))
2016 						/* keyboard dialect: US */
2017 						ite_sendstr(ip, "\033[27;1n");
2018 				}
2019 				ip->escape = 0;
2020 				return;
2021 
2022 
2023 			case 'h': /* set dec private modes */
2024 			case 'l': /* reset dec private modes */
2025 				n = ite_zargnum(ip);
2026 				switch (n) {
2027 				case 1:
2028 					/* CKM - cursor key mode */
2029 					ip->cursor_appmode = (c == 'h');
2030 					break;
2031 
2032 				case 3:
2033 					/* 132/80 columns (132 == 'h') */
2034 					break;
2035 
2036 				case 4: /* smooth scroll */
2037 					break;
2038 
2039 				case 5:
2040 					/* light background (=='h') /dark background(=='l') */
2041 					break;
2042 
2043 				case 6: /* origin mode */
2044 					ip->inside_margins = (c == 'h');
2045 #if 0
2046 					ip->curx = 0;
2047 					ip->cury = ip->inside_margins ? ip->top_margin : 0;
2048 					SUBR_CURSOR(ip, MOVE_CURSOR);
2049 #endif
2050 					break;
2051 
2052 				case 7: /* auto wraparound */
2053 					ip->auto_wrap = (c == 'h');
2054 					break;
2055 
2056 				case 8: /* keyboard repeat */
2057 					ip->key_repeat = (c == 'h');
2058 					break;
2059 
2060 				case 20: /* newline mode */
2061 					ip->linefeed_newline = (c == 'h');
2062 					break;
2063 
2064 				case 25: /* cursor on/off */
2065 					SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR);
2066 					break;
2067 				}
2068 				ip->escape = 0;
2069 				return;
2070 
2071 			case 'K':
2072 				/* selective erase in line */
2073 			case 'J':
2074 				/* selective erase in display */
2075 
2076 			default:
2077 				ip->escape = 0;
2078 				return;
2079 			}
2080 			break;
2081 
2082 
2083 		default:
2084 			ip->escape = 0;
2085 			return;
2086 		}
2087 	}
2088 
2089 	switch (c) {
2090 	case 0x00:	/* NUL */
2091 	case 0x01:	/* SOH */
2092 	case 0x02:	/* STX */
2093 	case 0x03:	/* ETX */
2094 	case 0x04:	/* EOT */
2095 	case 0x05:	/* ENQ */
2096 	case 0x06:	/* ACK */
2097 		break;
2098 
2099 	case BEL:
2100 #if NBELL > 0
2101 		if (kbd_ite && ite_tty[device_unit(kbd_ite->device)])
2102 			opm_bell();
2103 #endif
2104 		break;
2105 
2106 	case BS:
2107 		if (--ip->curx < 0)
2108 			ip->curx = 0;
2109 		else
2110 			SUBR_CURSOR(ip, MOVE_CURSOR);
2111 		break;
2112 
2113 	case HT:
2114 		for (n = ip->curx + 1; n < ip->cols; n++) {
2115 			if (ip->tabs[n]) {
2116 				ip->curx = n;
2117 				SUBR_CURSOR(ip, MOVE_CURSOR);
2118 				break;
2119 			}
2120 		}
2121 		break;
2122 
2123 	case VT:	/* VT is treated like LF */
2124 	case FF:	/* so is FF */
2125 	case LF:
2126 		/* cr->crlf distinction is done here, on output,
2127 		   not on input! */
2128 		if (ip->linefeed_newline)
2129 			ite_crlf(ip);
2130 		else
2131 			ite_lf(ip);
2132 		break;
2133 
2134 	case CR:
2135 		ite_cr(ip);
2136 		break;
2137 
2138 
2139 	case SO:
2140 		ip->GL = &ip->G1;
2141 		break;
2142 
2143 	case SI:
2144 		ip->GL = &ip->G0;
2145 		break;
2146 
2147 	case 0x10:	/* DLE */
2148 	case 0x11:	/* DC1/XON */
2149 	case 0x12:	/* DC2 */
2150 	case 0x13:	/* DC3/XOFF */
2151 	case 0x14:	/* DC4 */
2152 	case 0x15:	/* NAK */
2153 	case 0x16:	/* SYN */
2154 	case 0x17:	/* ETB */
2155 		break;
2156 
2157 	case CAN:
2158 		ip->escape = 0;	/* cancel any escape sequence in progress */
2159 		break;
2160 
2161 	case 0x19:	/* EM */
2162 		break;
2163 
2164 	case SUB:
2165 		ip->escape = 0;	/* dito, but see below */
2166 		/* should also display a reverse question mark!! */
2167 		break;
2168 
2169 	case ESC:
2170 		ip->escape = ESC;
2171 		break;
2172 
2173 	case 0x1c:	/* FS */
2174 	case 0x1d:	/* GS */
2175 	case 0x1e:	/* RS */
2176 	case 0x1f:	/* US */
2177 		break;
2178 
2179 	/* now it gets weird.. 8bit control sequences.. */
2180 	case IND:	/* index: move cursor down, scroll */
2181 		ite_index(ip);
2182 		break;
2183 
2184 	case NEL:	/* next line. next line, first pos. */
2185 		ite_crlf(ip);
2186 		break;
2187 
2188 	case HTS:	/* set horizontal tab */
2189 		if (ip->curx < ip->cols)
2190 			ip->tabs[ip->curx] = 1;
2191 		break;
2192 
2193 	case RI:	/* reverse index */
2194 		ite_rlf(ip);
2195 		break;
2196 
2197 	case SS2:	/* go into G2 for one character */
2198 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2199 		ip->GR = &ip->G2;	/* GL XXX */
2200 		break;
2201 
2202 	case SS3:	/* go into G3 for one character */
2203 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2204 		ip->GR = &ip->G3;	/* GL XXX */
2205 		break;
2206 
2207 	case DCS:	/* device control string introducer */
2208 		ip->escape = DCS;
2209 		ip->ap = ip->argbuf;
2210 		break;
2211 
2212 	case CSI:	/* control sequence introducer */
2213 		ip->escape = CSI;
2214 		ip->ap = ip->argbuf;
2215 		break;
2216 
2217 	case ST:	/* string terminator */
2218 		/* ignore, if not used as terminator */
2219 		break;
2220 
2221 	case OSC:	/* introduces OS command. Ignore everything upto ST */
2222 		ip->escape = OSC;
2223 		break;
2224 
2225 	case PM:	/* privacy message, ignore everything upto ST */
2226 		ip->escape = PM;
2227 		break;
2228 
2229 	case APC:	/* application program command, ignore everything upto ST */
2230 		ip->escape = APC;
2231 		break;
2232 
2233 	case DEL:
2234 		break;
2235 
2236 	default:
2237 		if (!ip->save_char && (*((c & 0x80) ? ip->GR : ip->GL) & CSET_MULTI)) {
2238 			ip->save_char = c;
2239 			break;
2240 		}
2241 		if (ip->imode)
2242 			ite_inchar(ip, ip->save_char ? 2 : 1);
2243 		iteprecheckwrap(ip);
2244 #ifdef DO_WEIRD_ATTRIBUTES
2245 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2246 			attrset(ip, ATTR_INV);
2247 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2248 		}
2249 		else
2250 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2251 #else
2252 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2253 #endif
2254 /*		SUBR_CURSOR(ip, DRAW_CURSOR);*/
2255 		itecheckwrap(ip);
2256 		if (ip->save_char) {
2257 			itecheckwrap(ip);
2258 			ip->save_char = 0;
2259 		}
2260 		if (ip->save_GL) {
2261 			/*
2262 			 * reset single shift
2263 			 */
2264 			ip->GR = ip->save_GL;
2265 			ip->save_GL = 0;
2266 		}
2267 		break;
2268 	}
2269 }
2270 
2271 static void
2272 iteprecheckwrap(struct ite_softc *ip)
2273 {
2274 	if (ip->auto_wrap && ip->curx + (ip->save_char ? 1 : 0) == ip->cols) {
2275 		ip->curx = 0;
2276 		clr_attr(ip, ATTR_INV);
2277 		if (++ip->cury >= ip->bottom_margin + 1) {
2278 			ip->cury = ip->bottom_margin;
2279 			/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2280 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2281 			ite_clrtoeol(ip);
2282 		} /*else
2283 			SUBR_CURSOR(ip, MOVE_CURSOR);*/
2284 	}
2285 }
2286 
2287 static void
2288 itecheckwrap(struct ite_softc *ip)
2289 {
2290 #if 0
2291 	if (++ip->curx == ip->cols) {
2292 		if (ip->auto_wrap) {
2293 			ip->curx = 0;
2294 			clr_attr(ip, ATTR_INV);
2295 			if (++ip->cury >= ip->bottom_margin + 1) {
2296 				ip->cury = ip->bottom_margin;
2297 				SUBR_CURSOR(ip, MOVE_CURSOR);
2298 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2299 				ite_clrtoeol(ip);
2300 				return;
2301 			}
2302 		} else
2303 			/* stay there if no autowrap.. */
2304 			ip->curx--;
2305 	}
2306 #else
2307 	if (ip->curx < ip->cols) {
2308 		ip->curx++;
2309 		/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2310 	}
2311 #endif
2312 }
2313 
2314 #endif
2315 
2316 #if NITE > 0 && NKBD > 0
2317 
2318 /*
2319  * Console functions
2320  */
2321 #include <dev/cons.h>
2322 extern void kbdenable(int);
2323 extern int kbdcngetc(void);
2324 
2325 /*
2326  * Return a priority in consdev->cn_pri field highest wins.  This function
2327  * is called before any devices have been probed.
2328  */
2329 void
2330 itecnprobe(struct consdev *cd)
2331 {
2332 	int maj;
2333 
2334 	/* locate the major number */
2335 	maj = cdevsw_lookup_major(&ite_cdevsw);
2336 
2337 	/*
2338 	 * return priority of the best ite (already picked from attach)
2339 	 * or CN_DEAD.
2340 	 */
2341 	if (con_itesoftc.grf == NULL)
2342 		cd->cn_pri = CN_DEAD;
2343 	else {
2344 		con_itesoftc.flags = (ITE_ALIVE|ITE_CONSOLE);
2345 		/*
2346 		 * hardcode the minor number.
2347 		 * currently we support only one ITE, it is enough for now.
2348 		 */
2349 		con_itesoftc.isw = &itesw[0];
2350 		cd->cn_pri = CN_INTERNAL;
2351 		cd->cn_dev = makedev(maj, 0);
2352 	}
2353 
2354 }
2355 
2356 void
2357 itecninit(struct consdev *cd)
2358 {
2359 	struct ite_softc *ip;
2360 
2361 	ip = getitesp(cd->cn_dev);
2362 	iteinit(cd->cn_dev);	       /* init console unit */
2363 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
2364 	kbdenable(0);
2365 	mfp_send_usart(0x49);
2366 }
2367 
2368 /*
2369  * itecnfinish() is called in ite_init() when the device is
2370  * being probed in the normal fasion, thus we can finish setting
2371  * up this ite now that the system is more functional.
2372  */
2373 void
2374 itecnfinish(struct ite_softc *ip)
2375 {
2376 	static int done;
2377 
2378 	if (done)
2379 		return;
2380 	done = 1;
2381 }
2382 
2383 /*ARGSUSED*/
2384 int
2385 itecngetc(dev_t dev)
2386 {
2387 	int c;
2388 
2389 	do {
2390 		c = kbdcngetc();
2391 		c = ite_cnfilter(c);
2392 	} while (c == -1);
2393 	return (c);
2394 }
2395 
2396 void
2397 itecnputc(dev_t dev, int c)
2398 {
2399 	static int paniced = 0;
2400 	struct ite_softc *ip = getitesp(dev);
2401 	char ch = c;
2402 #ifdef ITE_KERNEL_ATTR
2403 	short save_attribute;
2404 #endif
2405 
2406 	if (panicstr && !paniced &&
2407 	    (ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) {
2408 		(void) iteon(dev, 3);
2409 		paniced = 1;
2410 	}
2411 #ifdef ITE_KERNEL_ATTR
2412 	save_attribute = ip->attribute;
2413 	ip->attribute = ITE_KERNEL_ATTR;
2414 #endif
2415 	ite_putstr(&ch, 1, dev);
2416 #ifdef ITE_KERNEL_ATTR
2417 	ip->attribute = save_attribute;
2418 #endif
2419 }
2420 #endif
2421