xref: /netbsd/sys/arch/x68k/dev/ite.c (revision c4a72b64)
1 /*	$NetBSD: ite.c,v 1.33 2002/10/23 09:12:44 jdolecek 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. All advertising materials mentioning features or use of this software
21  *    must display the following acknowledgement:
22  *	This product includes software developed by the University of
23  *	California, Berkeley and its contributors.
24  * 4. Neither the name of the University nor the names of its contributors
25  *    may be used to endorse or promote products derived from this software
26  *    without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38  * SUCH DAMAGE.
39  *
40  * from: Utah $Hdr: ite.c 1.1 90/07/09$
41  *
42  *	@(#)ite.c	7.6 (Berkeley) 5/16/91
43  */
44 
45 /*
46  * ite - bitmaped terminal.
47  * Supports VT200, a few terminal features will be unavailable until
48  * the system actually probes the device (i.e. not after consinit())
49  */
50 
51 #include "ite.h"
52 #if NITE > 0
53 
54 #include "bell.h"
55 #include "kbd.h"
56 
57 #include "opt_ite.h"
58 
59 #include <sys/param.h>
60 #include <sys/conf.h>
61 #include <sys/proc.h>
62 #include <sys/ioctl.h>
63 #include <sys/tty.h>
64 #include <sys/systm.h>
65 #include <sys/device.h>
66 #include <sys/malloc.h>
67 
68 #include <machine/cpu.h>
69 #include <machine/kbio.h>
70 #include <machine/bus.h>
71 #include <machine/grfioctl.h>
72 #include <machine/iteioctl.h>
73 
74 #include <arch/x68k/dev/grfvar.h>
75 #include <arch/x68k/dev/itevar.h>
76 #include <arch/x68k/dev/kbdmap.h>
77 #include <arch/x68k/dev/mfp.h>
78 #if NBELL > 0
79 void opm_bell __P((void));
80 #endif
81 
82 #define SUBR_CNPROBE(min)	itesw[min].ite_cnprobe(min)
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 __P((int));
94 __inline static void alignment_display __P((struct ite_softc *));
95 __inline static void snap_cury __P((struct ite_softc *));
96 __inline static void ite_dnchar __P((struct ite_softc *, int));
97 static void ite_inchar __P((struct ite_softc *,	int));
98 __inline static void ite_clrtoeol __P((struct ite_softc *));
99 __inline static void ite_clrtobol __P((struct ite_softc *));
100 __inline static void ite_clrline __P((struct ite_softc *));
101 __inline static void ite_clrtoeos __P((struct ite_softc *));
102 __inline static void ite_clrtobos __P((struct ite_softc *));
103 __inline static void ite_clrscreen __P((struct ite_softc *));
104 __inline static void ite_dnline __P((struct ite_softc *, int));
105 __inline static void ite_inline __P((struct ite_softc *, int));
106 __inline static void ite_index __P((struct ite_softc *));
107 __inline static void ite_lf __P((struct ite_softc *));
108 __inline static void ite_crlf __P((struct ite_softc *));
109 __inline static void ite_cr __P((struct ite_softc *));
110 __inline static void ite_rlf __P((struct ite_softc *));
111 static void iteprecheckwrap __P((struct ite_softc *ip));
112 static void itecheckwrap __P((struct ite_softc *ip));
113 static int ite_argnum __P((struct ite_softc *ip));
114 static int ite_zargnum __P((struct ite_softc *ip));
115 static void ite_sendstr __P((struct ite_softc *ip, char *str));
116 __inline static int atoi __P((const char *cp));
117 __inline static char *index __P((const char *cp, char ch));
118 void ite_reset __P((struct ite_softc *ip));
119 struct ite_softc *getitesp __P((dev_t));
120 int iteon __P((dev_t, int));
121 void iteoff __P((dev_t, int));
122 
123 struct itesw itesw[] = {
124 	{0,	tv_init,	tv_deinit,	0,
125 	 0,	0,		0}
126 };
127 int	nitesw = sizeof(itesw) / sizeof(itesw[0]);
128 
129 /*
130  * # of chars are output in a single itestart() call.
131  * If this is too big, user processes will be blocked out for
132  * long periods of time while we are emptying the queue in itestart().
133  * If it is too small, console output will be very ragged.
134  */
135 #define ITEBURST 64
136 
137 int	nite = NITE;
138 struct	tty *ite_tty[NITE];
139 struct	ite_softc *kbd_ite = NULL;
140 struct  ite_softc con_itesoftc;
141 
142 struct  tty *kbd_tty = NULL;
143 
144 int	start_repeat_timeo = 20; /* /100: initial timeout till pressed key repeats */
145 int	next_repeat_timeo  = 3;  /* /100: timeout when repeating for next char */
146 
147 u_char	cons_tabs[MAX_TABS];
148 
149 void	itestart __P((struct tty *tp));
150 
151 void iteputchar __P((int c, struct ite_softc *ip));
152 void ite_putstr __P((const u_char * s, int len, dev_t dev));
153 
154 void iteattach __P((struct device *, struct device *, void *));
155 int itematch __P((struct device *, struct cfdata *, void *));
156 
157 CFATTACH_DECL(ite, sizeof(struct ite_softc),
158     itematch, iteattach, NULL, NULL);
159 
160 extern struct cfdriver ite_cd;
161 
162 dev_type_open(iteopen);
163 dev_type_close(iteclose);
164 dev_type_read(iteread);
165 dev_type_write(itewrite);
166 dev_type_ioctl(iteioctl);
167 dev_type_tty(itetty);
168 dev_type_poll(itepoll);
169 
170 const struct cdevsw ite_cdevsw = {
171 	iteopen, iteclose, iteread, itewrite, iteioctl,
172 	nostop, itetty, itepoll, nommap, ttykqfilter, D_TTY
173 };
174 
175 int
176 itematch(pdp, cdp, auxp)
177 	struct device *pdp;
178 	struct cfdata *cdp;
179 	void *auxp;
180 {
181 	struct grf_softc *gp;
182 #if 0
183 	int maj;
184 #endif
185 
186 	gp = auxp;
187 
188 	/* ite0 should be at grf0 XXX */
189 	if(cdp->cf_unit != gp->g_device.dv_unit)
190 		return(0);
191 
192 #if 0
193 	/*
194 	 * all that our mask allows (more than enough no one
195 	 * has > 32 monitors for text consoles on one machine)
196 	 */
197 	if (cdp->cf_unit >= sizeof(ite_confunits) * NBBY)
198 		return(0);
199 	/*
200 	 * XXX
201 	 * normally this would be done in attach, however
202 	 * during early init we do not have a device pointer
203 	 * and thus no unit number.
204 	 */
205 	maj = cdevsw_lookup_major(&ite_cdevsw);
206 	gp->g_itedev = makedev(maj, cdp->cf_unit);
207 #endif
208 	return(1);
209 }
210 
211 /*
212  * iteinit() is the standard entry point for initialization of
213  * an ite device, it is also called from ite_cninit().
214  */
215 void
216 iteattach(pdp, dp, auxp)
217 	struct device *pdp, *dp;
218 	void *auxp;
219 {
220 	struct ite_softc *ip;
221 	struct grf_softc *gp;
222 
223 	gp = (struct grf_softc *)auxp;
224 	if (dp) {
225 		ip = (struct ite_softc *)dp;
226 		if(con_itesoftc.grf != NULL
227 			/*&& con_itesoftc.grf->g_unit == gp->g_unit*/) {
228 			/*
229 			 * console reinit copy params over.
230 			 * and console always gets keyboard
231 			 */
232 			memcpy(&ip->grf, &con_itesoftc.grf,
233 			    (char *)&ip[1] - (char *)&ip->grf);
234 			con_itesoftc.grf = NULL;
235 			kbd_ite = ip;
236 		}
237 		ip->grf = gp;
238 		iteinit(ip->device.dv_unit); /* XXX */
239 		printf(": rows %d cols %d", ip->rows, ip->cols);
240 		if (kbd_ite == NULL)
241 			kbd_ite = ip;
242 		printf("\n");
243 	} else {
244 		if (con_itesoftc.grf != NULL)
245 			return;
246 		con_itesoftc.grf = gp;
247 		con_itesoftc.tabs = cons_tabs;
248 	}
249 }
250 
251 struct ite_softc *
252 getitesp(dev)
253 	dev_t dev;
254 {
255 	extern int x68k_realconfig;
256 
257 	if (x68k_realconfig && con_itesoftc.grf == NULL)
258 		return(ite_cd.cd_devs[UNIT(dev)]);
259 
260 	if (con_itesoftc.grf == NULL)
261 		panic("no ite_softc for console");
262 	return(&con_itesoftc);
263 }
264 
265 void
266 iteinit(dev)
267 	dev_t dev;
268 {
269 	struct ite_softc *ip;
270 
271 	ip = getitesp(dev);
272 
273 	if (ip->flags & ITE_INITED)
274 		return;
275 	memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
276 
277 	ip->curx = 0;
278 	ip->cury = 0;
279 	ip->cursorx = 0;
280 	ip->cursory = 0;
281 
282 	ip->isw = &itesw[ip->device.dv_unit]; /* XXX */
283 	SUBR_INIT(ip);
284 	SUBR_CURSOR(ip, DRAW_CURSOR);
285 	if (!ip->tabs)
286 		ip->tabs = malloc(MAX_TABS*sizeof(u_char), M_DEVBUF, M_WAITOK);
287 	ite_reset(ip);
288 	ip->flags |= ITE_INITED;
289 }
290 
291 /*
292  * Perform functions necessary to setup device as a terminal emulator.
293  */
294 int
295 iteon(dev, flag)
296 	dev_t dev;
297 	int flag;
298 {
299 	int unit = UNIT(dev);
300 	struct ite_softc *ip;
301 
302 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
303 	    (ip = getitesp(unit)) == NULL || (ip->flags&ITE_ALIVE) == 0)
304 		return(ENXIO);
305 	/* force ite active, overriding graphics mode */
306 	if (flag & 1) {
307 		ip->flags |= ITE_ACTIVE;
308 		ip->flags &= ~(ITE_INGRF|ITE_INITED);
309 	}
310 	/* leave graphics mode */
311 	if (flag & 2) {
312 		ip->flags &= ~ITE_INGRF;
313 		if ((ip->flags & ITE_ACTIVE) == 0)
314 			return(0);
315 	}
316 	ip->flags |= ITE_ACTIVE;
317 	if (ip->flags & ITE_INGRF)
318 		return(0);
319 	iteinit(dev);
320 	if (flag & 2)
321 		ite_reset(ip);
322 #if NKBD > 0
323 	mfp_send_usart (0x49);	/* XXX */
324 #endif
325 	return(0);
326 }
327 
328 /*
329  * "Shut down" device as terminal emulator.
330  * Note that we do not deinit the console device unless forced.
331  * Deinit'ing the console every time leads to a very active
332  * screen when processing /etc/rc.
333  */
334 void
335 iteoff(dev, flag)
336 	dev_t dev;
337 	int flag;
338 {
339 	int unit = UNIT(dev);
340 	register struct ite_softc *ip;
341 
342 	/* XXX check whether when call from grf.c */
343 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
344 	    (ip = getitesp(unit)) == NULL || (ip->flags&ITE_ALIVE) == 0)
345 		return;
346 	if (flag & 2)
347 		ip->flags |= ITE_INGRF;
348 
349 	if ((ip->flags & ITE_ACTIVE) == 0)
350 		return;
351 	if ((flag & 1) ||
352 	    (ip->flags & (ITE_INGRF|ITE_ISCONS|ITE_INITED)) == ITE_INITED)
353 		SUBR_DEINIT(ip);
354 
355 	/*
356 	 * XXX When the system is rebooted with "reboot", init(8)
357 	 * kills the last process to have the console open.
358 	 * If we don't revent the the ITE_ACTIVE bit from being
359 	 * cleared, we will never see messages printed during
360 	 * the process of rebooting.
361 	 */
362 	if ((flag & 2) == 0 && (ip->flags & ITE_ISCONS) == 0) {
363 		ip->flags &= ~ITE_ACTIVE;
364 #if NKBD > 0
365 		mfp_send_usart (0x48);	/* XXX */
366 #endif
367 	}
368 }
369 
370 /*
371  * standard entry points to the device.
372  */
373 
374 /* ARGSUSED */
375 int
376 iteopen(dev, mode, devtype, p)
377 	dev_t dev;
378 	int mode, devtype;
379 	struct proc *p;
380 {
381 	int unit = UNIT(dev);
382 	register struct tty *tp;
383 	register struct ite_softc *ip;
384 	register int error;
385 	int first = 0;
386 
387 	if (unit >= ite_cd.cd_ndevs || (ip = getitesp(dev)) == NULL)
388 		return (ENXIO);
389 	if (!ite_tty[unit]) {
390 		tp = ite_tty[unit] = ttymalloc();
391 		tty_attach(tp);
392 	} else
393 		tp = ite_tty[unit];
394 	if ((tp->t_state&(TS_ISOPEN|TS_XCLUDE)) == (TS_ISOPEN|TS_XCLUDE)
395 	    && p->p_ucred->cr_uid != 0)
396 		return (EBUSY);
397 	if ((ip->flags & ITE_ACTIVE) == 0) {
398 		error = iteon(dev, 0);
399 		if (error)
400 			return (error);
401 		first = 1;
402 	}
403 	tp->t_oproc = itestart;
404 	tp->t_param = NULL;
405 	tp->t_dev = dev;
406 	if ((tp->t_state&TS_ISOPEN) == 0) {
407 		ttychars(tp);
408 		tp->t_iflag = TTYDEF_IFLAG;
409 		tp->t_oflag = TTYDEF_OFLAG;
410 		tp->t_cflag = TTYDEF_CFLAG;
411 		tp->t_lflag = TTYDEF_LFLAG;
412 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
413 		tp->t_state = TS_ISOPEN|TS_CARR_ON;
414 		ttsetwater(tp);
415 	}
416 	error = (*tp->t_linesw->l_open)(dev, tp);
417 	if (error == 0) {
418 		tp->t_winsize.ws_row = ip->rows;
419 		tp->t_winsize.ws_col = ip->cols;
420 	} else if (first)
421 		iteoff(dev, 0);
422 	return (error);
423 }
424 
425 /*ARGSUSED*/
426 int
427 iteclose(dev, flag, mode, p)
428 	dev_t dev;
429 	int flag, mode;
430 	struct proc *p;
431 {
432 	register struct tty *tp = ite_tty[UNIT(dev)];
433 
434 	(*tp->t_linesw->l_close)(tp, flag);
435 	ttyclose(tp);
436 	iteoff(dev, 0);
437 #if 0
438 	ttyfree(tp);
439 	ite_tty[UNIT(dev)] = (struct tty *)0;
440 #endif
441 	return(0);
442 }
443 
444 int
445 iteread(dev, uio, flag)
446 	dev_t dev;
447 	struct uio *uio;
448 	int flag;
449 {
450 	register struct tty *tp = ite_tty[UNIT(dev)];
451 
452 	return ((*tp->t_linesw->l_read)(tp, uio, flag));
453 }
454 
455 int
456 itewrite(dev, uio, flag)
457 	dev_t dev;
458 	struct uio *uio;
459 	int flag;
460 {
461 	register struct tty *tp = ite_tty[UNIT(dev)];
462 
463 	return ((*tp->t_linesw->l_write)(tp, uio, flag));
464 }
465 
466 int
467 itepoll(dev, events, p)
468 	dev_t dev;
469 	int events;
470 	struct proc *p;
471 {
472 	register struct tty *tp = ite_tty[UNIT(dev)];
473 
474 	return ((*tp->t_linesw->l_poll)(tp, events, p));
475 }
476 
477 struct tty *
478 itetty(dev)
479 	dev_t dev;
480 {
481 
482 	return (ite_tty[UNIT(dev)]);
483 }
484 
485 int
486 iteioctl(dev, cmd, addr, flag, p)
487 	dev_t dev;
488 	u_long cmd;
489 	caddr_t addr;
490 	int flag;
491 	struct proc *p;
492 {
493 	struct iterepeat *irp;
494 	register struct tty *tp = ite_tty[UNIT(dev)];
495 	int error;
496 
497 	error = (*tp->t_linesw->l_ioctl)(tp, cmd, addr, flag, p);
498 	if (error != EPASSTHROUGH)
499 		return (error);
500 
501 	error = ttioctl(tp, cmd, addr, flag, p);
502 	if (error != EPASSTHROUGH)
503 		return (error);
504 
505 	switch (cmd) {
506 	case ITEIOCSKMAP:
507 		if (addr == 0)
508 			return(EFAULT);
509 		memcpy(&kbdmap, addr, sizeof(struct kbdmap));
510 		return(0);
511 
512 	case ITEIOCGKMAP:
513 		if (addr == NULL)
514 			return(EFAULT);
515 		memcpy(addr, &kbdmap, sizeof(struct kbdmap));
516 		return(0);
517 
518 	case ITEIOCGREPT:
519 		irp = (struct iterepeat *)addr;
520 		irp->start = start_repeat_timeo;
521 		irp->next = next_repeat_timeo;
522 
523 	case ITEIOCSREPT:
524 		irp = (struct iterepeat *)addr;
525 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
526 			return(EINVAL);
527 		start_repeat_timeo = irp->start;
528 		next_repeat_timeo = irp->next;
529 #if x68k
530 	case ITELOADFONT:
531 		if (addr) {
532 			memcpy(kern_font, addr, 4096 /*sizeof (kernel_font)*/);
533 			ite_set_glyph();
534 			return 0;
535 		} else
536 			return EFAULT;
537 
538 	case ITETVCTRL:
539 		if (addr && *(u_int8_t *)addr < 0x40) {
540 			return mfp_send_usart (* (u_int8_t *)addr);
541 		} else {
542 			return EFAULT;
543 		}
544 #endif
545 	}
546 	return (EPASSTHROUGH);
547 }
548 
549 void
550 itestart(tp)
551 	register struct tty *tp;
552 {
553 	struct clist *rbp;
554 	struct ite_softc *ip;
555 	u_char buf[ITEBURST];
556 	int s, len;
557 
558 	ip = getitesp(tp->t_dev);
559 	/*
560 	 * (Potentially) lower priority.  We only need to protect ourselves
561 	 * from keyboard interrupts since that is all that can affect the
562 	 * state of our tty (kernel printf doesn't go through this routine).
563 	 */
564 	s = spltty();
565 	if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
566 		goto out;
567 	tp->t_state |= TS_BUSY;
568 	rbp = &tp->t_outq;
569 	len = q_to_b(rbp, buf, ITEBURST);
570 	/*splx(s);*/
571 
572 	/* Here is a really good place to implement pre/jumpscroll() */
573 	ite_putstr(buf, len, tp->t_dev);
574 
575 	/*s = spltty();*/
576 	tp->t_state &= ~TS_BUSY;
577 	/* we have characters remaining. */
578 	if (rbp->c_cc) {
579 		tp->t_state |= TS_TIMEOUT;
580 		callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
581 	}
582 	/* wakeup we are below */
583 	if (rbp->c_cc <= tp->t_lowat) {
584 		if (tp->t_state & TS_ASLEEP) {
585 			tp->t_state &= ~TS_ASLEEP;
586 			wakeup((caddr_t)rbp);
587 		}
588 		selwakeup(&tp->t_wsel);
589 	}
590 out:
591 	splx(s);
592 }
593 
594 /* XXX called after changes made in underlying grf layer. */
595 /* I want to nuke this */
596 void
597 ite_reinit(dev)
598 	dev_t dev;
599 {
600 	struct ite_softc *ip;
601 	int unit = UNIT(dev);
602 
603 	/* XXX check whether when call from grf.c */
604 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
605 	    (ip = getitesp(unit)) == NULL)
606 		return;
607 
608 	ip->flags &= ~ITE_INITED;
609 	iteinit(dev);
610 }
611 
612 void
613 ite_reset(ip)
614     struct ite_softc *ip;
615 {
616 	int i;
617 
618 	ip->curx = 0;
619 	ip->cury = 0;
620 	ip->attribute = 0;
621 	ip->save_curx = 0;
622 	ip->save_cury = 0;
623 	ip->save_attribute = 0;
624 	ip->ap = ip->argbuf;
625 	ip->emul_level = EMUL_VT300_8;
626 	ip->eightbit_C1 = 0;
627 	ip->top_margin = 0;
628 	ip->bottom_margin = ip->rows - 1;
629 	ip->inside_margins = 0; /* origin mode == absolute */
630 	ip->linefeed_newline = 0;
631 	ip->auto_wrap = 1;
632 	ip->cursor_appmode = 0;
633 	ip->keypad_appmode = 0;
634 	ip->imode = 0;
635 	ip->key_repeat = 1;
636 	ip->G0 = CSET_ASCII;
637 	ip->G1 = CSET_JIS1983;
638 	ip->G2 = CSET_JISKANA;
639 	ip->G3 = CSET_JIS1990;
640 	ip->GL = &ip->G0;
641 	ip->GR = &ip->G1;
642 	ip->save_GL = 0;
643 	ip->save_char = 0;
644 	ip->fgcolor = 7;
645 	ip->bgcolor = 0;
646 	for (i = 0; i < ip->cols; i++)
647 		ip->tabs[i] = ((i & 7) == 0);
648 	/* XXX clear screen */
649 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
650 	attrclr(ip, 0, 0, ip->rows, ip->cols);
651 }
652 
653 /* Used in console at startup only */
654 int
655 ite_cnfilter(c)
656 	u_char c;
657 {
658 	static u_char mod = 0;
659 	struct key key;
660 	u_char code, up, mask;
661 	int s;
662 
663 	up = c & 0x80 ? 1 : 0;
664 	c &= 0x7f;
665 	code = 0;
666 
667 	s = spltty();
668 
669 	mask = 0;
670 	if (c >= KBD_LEFT_ALT && !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
671 		switch (c) {
672 		case KBD_LEFT_SHIFT:
673 			mask = KBD_MOD_SHIFT;
674 			break;
675 
676 		case KBD_LEFT_ALT:
677 			mask = KBD_MOD_LALT;
678 			break;
679 
680 		case KBD_RIGHT_ALT:
681 			mask = KBD_MOD_RALT;
682 			break;
683 
684 		case KBD_LEFT_META:
685 			mask = KBD_MOD_LMETA;
686 			break;
687 
688 		case KBD_RIGHT_META:
689 			mask = KBD_MOD_RMETA;
690 			break;
691 
692 		case KBD_CAPS_LOCK:
693 			/*
694 			 * capslock already behaves `right', don't need to
695 			 * keep track of the state in here.
696 			 */
697 			mask = KBD_MOD_CAPS;
698 			break;
699 
700 		case KBD_CTRL:
701 			mask = KBD_MOD_CTRL;
702 			break;
703 
704 		case KBD_RECONNECT:
705 			/* ite got 0xff */
706 			if (up)
707 				kbd_setLED();
708 			break;
709 		}
710 		if (mask & KBD_MOD_CAPS) {
711 			if (!up) {
712 				mod ^= KBD_MOD_CAPS;
713 				kbdled ^= LED_CAPS_LOCK;
714 				kbd_setLED();
715 			}
716 		} else if (up)
717 			mod &= ~mask;
718 		else mod |= mask;
719 		splx (s);
720 		return -1;
721 	}
722 
723 	if (up) {
724 		splx(s);
725 		return -1;
726 	}
727 
728 	/* translate modifiers */
729 	if (mod & KBD_MOD_SHIFT) {
730 		if (mod & KBD_MOD_ALT)
731 			key = kbdmap.alt_shift_keys[c];
732 		else
733 			key = kbdmap.shift_keys[c];
734 	} else if (mod & KBD_MOD_ALT)
735 		key = kbdmap.alt_keys[c];
736 	else {
737 		key = kbdmap.keys[c];
738 		/* if CAPS and key is CAPable (no pun intended) */
739 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
740 			key = kbdmap.shift_keys[c];
741 	}
742 	code = key.code;
743 
744 	/* if string return */
745 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
746 		splx(s);
747 		return -1;
748 	}
749 	/* handle dead keys */
750 	if (key.mode & KBD_MODE_DEAD) {
751 		splx(s);
752 		return -1;
753 	}
754 	if (mod & KBD_MOD_CTRL)
755 		code &= 0x1f;
756 	if (mod & KBD_MOD_META)
757 		code |= 0x80;
758 
759 	/* do console mapping. */
760 	code = code == '\r' ? '\n' : code;
761 
762 	splx(s);
763 	return (code);
764 }
765 
766 /* And now the old stuff. */
767 __inline static void
768 itesendch (ch)
769 	int ch;
770 {
771 	(*kbd_tty->t_linesw->l_rint)(ch, kbd_tty);
772 }
773 
774 
775 void
776 ite_filter(c)
777 	u_char c;
778 {
779 	static u_short mod = 0;
780 	register unsigned char code, *str;
781 	u_short up, mask;
782 	struct key key;
783 	int s, i;
784 
785 	if (!kbd_ite || !(kbd_tty = ite_tty[kbd_ite->device.dv_unit]))
786 		return;
787 
788 	/* have to make sure we're at spltty in here */
789 	s = spltty ();
790 
791 	up = c & 0x80 ? 1 : 0;
792 	c &= 0x7f;
793 	code = 0;
794 
795 	mask = 0;
796 	if (c >= KBD_LEFT_ALT &&
797 	    !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
798 		switch (c) {
799 		case KBD_LEFT_SHIFT:
800 			mask = KBD_MOD_SHIFT;
801 			break;
802 
803 		case KBD_LEFT_ALT:
804 			mask = KBD_MOD_LALT;
805 			break;
806 
807 		case KBD_RIGHT_ALT:
808 			mask = KBD_MOD_RALT;
809 			break;
810 
811 		case KBD_LEFT_META:
812 			mask = KBD_MOD_LMETA;
813 			break;
814 
815 		case KBD_RIGHT_META:
816 			mask = KBD_MOD_RMETA;
817 			break;
818 
819 		case KBD_CAPS_LOCK:
820 			/*
821 			 * capslock already behaves `right', don't need to keep
822 			 * track of the state in here.
823 			 */
824 			mask = KBD_MOD_CAPS;
825 			break;
826 
827 		case KBD_CTRL:
828 			mask = KBD_MOD_CTRL;
829 			break;
830 
831 		case KBD_OPT1:
832 			mask = KBD_MOD_OPT1;
833 			break;
834 
835 		case KBD_OPT2:
836 			mask = KBD_MOD_OPT2;
837 			break;
838 
839 		case KBD_RECONNECT:
840 			if (up) { /* ite got 0xff */
841 				kbd_setLED();
842 			}
843 			break;
844 		}
845 
846 		if (mask & KBD_MOD_CAPS) {
847 			if (!up) {
848 				mod ^= KBD_MOD_CAPS;
849 				kbdled ^= LED_CAPS_LOCK;
850 				kbd_setLED();
851 			}
852 		} else if (up) {
853 			mod &= ~mask;
854 		} else mod |= mask;
855 
856 		/*
857 		 * return even if it wasn't a modifier key, the other
858 		 * codes up here are either special (like reset warning),
859 		 * or not yet defined
860 		 */
861 		splx (s);
862 		return;
863 	}
864 
865 	if (up) {
866 		splx (s);
867 		return;
868 	}
869 
870 	/*
871 	 * intercept LAlt-LMeta-F1 here to switch back to original ascii-keymap.
872 	 * this should probably be configurable..
873 	 */
874 	if (mod == (KBD_MOD_LALT|KBD_MOD_LMETA) && c == 0x63) {
875 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
876 		splx (s);
877 		return;
878 	}
879 
880 	/* translate modifiers */
881 	if (mod & KBD_MOD_SHIFT) {
882 		if (mod & KBD_MOD_ALT)
883 			key = kbdmap.alt_shift_keys[c];
884 		else
885 			key = kbdmap.shift_keys[c];
886 	} else if (mod & KBD_MOD_ALT)
887 		key = kbdmap.alt_keys[c];
888 	else {
889 		key = kbdmap.keys[c];
890 		/* if CAPS and key is CAPable (no pun intended) */
891 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
892 			key = kbdmap.shift_keys[c];
893 		else if ((mod & KBD_MOD_OPT2) && (key.mode & KBD_MODE_KPAD))
894 			key = kbdmap.shift_keys[c];
895 	}
896 	code = key.code;
897 
898 	/* handle dead keys */
899 	if (key.mode & KBD_MODE_DEAD) {
900 		splx (s);
901 		return;
902 	}
903   	/* if not string, apply META and CTRL modifiers */
904 	if (! (key.mode & KBD_MODE_STRING)
905 	    && (!(key.mode & KBD_MODE_KPAD) ||
906 		(kbd_ite && !kbd_ite->keypad_appmode))) {
907 		if ((mod & KBD_MOD_CTRL) &&
908 		    (code == ' ' || (code >= '@' && code <= 'z')))
909 			code &= 0x1f;
910 		if (mod & KBD_MOD_META)
911 			code |= 0x80;
912 	} else if ((key.mode & KBD_MODE_KPAD) &&
913 	       (kbd_ite && kbd_ite->keypad_appmode)) {
914 		static char *in = "0123456789-+.\r()/*";
915 		static char *out = "pqrstuvwxymlnMPQRS";
916 		char *cp = index (in, code);
917 
918 		/*
919 		 * keypad-appmode sends SS3 followed by the above
920 		 * translated character
921 		 */
922 		(*kbd_tty->t_linesw->l_rint) (27, kbd_tty);
923 		(*kbd_tty->t_linesw->l_rint) ('O', kbd_tty);
924 		(*kbd_tty->t_linesw->l_rint) (out[cp - in], kbd_tty);
925 		splx(s);
926 		return;
927 	} else {
928 		/* *NO* I don't like this.... */
929 		static u_char app_cursor[] =
930 		{
931 		  3, 27, 'O', 'A',
932 		  3, 27, 'O', 'B',
933 		  3, 27, 'O', 'C',
934 		  3, 27, 'O', 'D'};
935 
936 		str = kbdmap.strings + code;
937 		/*
938 		 * if this is a cursor key, AND it has the default
939 		 * keymap setting, AND we're in app-cursor mode, switch
940 		 * to the above table. This is *nasty* !
941 		 */
942 		if (c >= 0x3b && c <= 0x3e && kbd_ite->cursor_appmode
943 		    && !memcmp(str, "\x03\x1b[", 3) &&
944 		    index("ABCD", str[3]))
945 			str = app_cursor + 4 * (str[3] - 'A');
946 
947 		/*
948 		 * using a length-byte instead of 0-termination allows
949 		 * to embed \0 into strings, although this is not used
950 		 * in the default keymap
951 		 */
952 		for (i = *str++; i; i--)
953 			(*kbd_tty->t_linesw->l_rint) (*str++, kbd_tty);
954 		splx(s);
955 		return;
956 	}
957 	(*kbd_tty->t_linesw->l_rint)(code, kbd_tty);
958 
959 	splx(s);
960 	return;
961 }
962 
963 /* helper functions, makes the code below more readable */
964 __inline static void
965 ite_sendstr (ip, str)
966 	struct ite_softc *ip;
967 	char *str;
968 {
969 	while (*str)
970 		itesendch (*str++);
971 }
972 
973 __inline static void
974 alignment_display(ip)
975 	struct ite_softc *ip;
976 {
977 	int i, j;
978 
979 	for (j = 0; j < ip->rows; j++)
980 		for (i = 0; i < ip->cols; i++)
981 			SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
982 	attrclr(ip, 0, 0, ip->rows, ip->cols);
983 }
984 
985 __inline static void
986 snap_cury(ip)
987 	struct ite_softc *ip;
988 {
989 	if (ip->inside_margins) {
990 		if (ip->cury < ip->top_margin)
991 			ip->cury = ip->top_margin;
992 		if (ip->cury > ip->bottom_margin)
993 			ip->cury = ip->bottom_margin;
994 	}
995 }
996 
997 __inline static void
998 ite_dnchar(ip, n)
999 	struct ite_softc *ip;
1000 	int n;
1001 {
1002 	n = min(n, ip->cols - ip->curx);
1003 	if (n < ip->cols - ip->curx) {
1004 		SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
1005 		attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
1006 			1, ip->cols - ip->curx - n);
1007 		attrclr(ip, ip->cury, ip->cols - n, 1, n);
1008 	}
1009 	while (n-- > 0)
1010 		SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1011 }
1012 
1013 static void
1014 ite_inchar(ip, n)
1015 	struct ite_softc *ip;
1016 	int n;
1017 {
1018 	int c = ip->save_char;
1019 	ip->save_char = 0;
1020 	n = min(n, ip->cols - ip->curx);
1021 	if (n < ip->cols - ip->curx) {
1022 		SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1023 		attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1024 			1, ip->cols - ip->curx - n);
1025 		attrclr(ip, ip->cury, ip->curx, 1, n);
1026 	}
1027 	while (n--)
1028 		SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1029 	ip->save_char = c;
1030 }
1031 
1032 __inline static void
1033 ite_clrtoeol(ip)
1034 	struct ite_softc *ip;
1035 {
1036 	int y = ip->cury, x = ip->curx;
1037 	if (ip->cols - x > 0) {
1038 		SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1039 		attrclr(ip, y, x, 1, ip->cols - x);
1040 	}
1041 }
1042 
1043 __inline static void
1044 ite_clrtobol(ip)
1045 	struct ite_softc *ip;
1046 {
1047 	int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1048 	SUBR_CLEAR(ip, y, 0, 1, x);
1049 	attrclr(ip, y, 0, 1, x);
1050 }
1051 
1052 __inline static void
1053 ite_clrline(ip)
1054 	struct ite_softc *ip;
1055 {
1056 	int y = ip->cury;
1057 	SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1058 	attrclr(ip, y, 0, 1, ip->cols);
1059 }
1060 
1061 __inline static void
1062 ite_clrtoeos(ip)
1063 	struct ite_softc *ip;
1064 {
1065 	ite_clrtoeol(ip);
1066 	if (ip->cury < ip->rows - 1) {
1067 		SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1068 		attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1069 	}
1070 }
1071 
1072 __inline static void
1073 ite_clrtobos(ip)
1074 	struct ite_softc *ip;
1075 {
1076 	ite_clrtobol(ip);
1077 	if (ip->cury > 0) {
1078 		SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1079 		attrclr(ip, 0, 0, ip->cury, ip->cols);
1080 	}
1081 }
1082 
1083 __inline static void
1084 ite_clrscreen(ip)
1085 	struct ite_softc *ip;
1086 {
1087 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1088 	attrclr(ip, 0, 0, ip->rows, ip->cols);
1089 }
1090 
1091 
1092 
1093 __inline static void
1094 ite_dnline(ip, n)
1095 	struct ite_softc *ip;
1096 	int n;
1097 {
1098 	/*
1099 	 * interesting.. if the cursor is outside the scrolling
1100 	 * region, this command is simply ignored..
1101 	 */
1102 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1103 		return;
1104 
1105 	n = min(n, ip->bottom_margin + 1 - ip->cury);
1106 	if (n <= ip->bottom_margin - ip->cury) {
1107 		SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1108 		attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1109 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1110 	}
1111 	SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1112 	attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1113 }
1114 
1115 __inline static void
1116 ite_inline(ip, n)
1117 	struct ite_softc *ip;
1118 	int n;
1119 {
1120 	/*
1121 	 * interesting.. if the cursor is outside the scrolling
1122 	 * region, this command is simply ignored..
1123 	 */
1124 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1125 		return;
1126 
1127 	if (n <= 0)
1128 		n = 1;
1129 	else n = min(n, ip->bottom_margin + 1 - ip->cury);
1130 	if (n <= ip->bottom_margin  - ip->cury) {
1131 		SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1132 		attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1133 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1134 	}
1135 	SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1136 	attrclr(ip, ip->cury, 0, n, ip->cols);
1137 	ip->curx = 0;
1138 }
1139 
1140 __inline static void
1141 ite_index (ip)
1142 	struct ite_softc *ip;
1143 {
1144 	++ip->cury;
1145 	if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) {
1146 		ip->cury--;
1147 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1148 		ite_clrline(ip);
1149 	}
1150 	/*clr_attr(ip, ATTR_INV);*/
1151 }
1152 
1153 __inline static void
1154 ite_lf (ip)
1155 	struct ite_softc *ip;
1156 {
1157 	++ip->cury;
1158 	if (ip->cury > ip->bottom_margin) {
1159 		ip->cury--;
1160 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1161 		ite_clrline(ip);
1162 	}
1163 /*	SUBR_CURSOR(ip, MOVE_CURSOR);*/
1164 	/*clr_attr(ip, ATTR_INV);*/
1165 	/* reset character set ... thanks for mohta. */
1166 	ip->G0 = CSET_ASCII;
1167 	ip->G1 = CSET_JIS1983;
1168 	ip->G2 = CSET_JISKANA;
1169 	ip->G3 = CSET_JIS1990;
1170 	ip->GL = &ip->G0;
1171 	ip->GR = &ip->G1;
1172 	ip->save_GL = 0;
1173 	ip->save_char = 0;
1174 }
1175 
1176 __inline static void
1177 ite_crlf (ip)
1178 	struct ite_softc *ip;
1179 {
1180 	ip->curx = 0;
1181 	ite_lf (ip);
1182 }
1183 
1184 __inline static void
1185 ite_cr (ip)
1186 	struct ite_softc *ip;
1187 {
1188 	if (ip->curx) {
1189 		ip->curx = 0;
1190 	}
1191 }
1192 
1193 __inline static void
1194 ite_rlf (ip)
1195 	struct ite_softc *ip;
1196 {
1197 	ip->cury--;
1198 	if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) {
1199 		ip->cury++;
1200 		SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1201 		ite_clrline(ip);
1202 	}
1203 	clr_attr(ip, ATTR_INV);
1204 }
1205 
1206 __inline static int
1207 atoi (cp)
1208     const char *cp;
1209 {
1210 	int n;
1211 
1212 	for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1213 		n = n * 10 + *cp - '0';
1214 	return n;
1215 }
1216 
1217 __inline static char *
1218 index(cp, ch)
1219 	const char *cp;
1220 	char ch;
1221 {
1222 	while (*cp && *cp != ch)
1223 		cp++;
1224 	return *cp ? (char *) cp : 0;
1225 }
1226 
1227 __inline static int
1228 ite_argnum (ip)
1229 	struct ite_softc *ip;
1230 {
1231 	char ch;
1232 	int n;
1233 
1234 	/* convert argument string into number */
1235 	if (ip->ap == ip->argbuf)
1236 		return 1;
1237 	ch = *ip->ap;
1238 	*ip->ap = 0;
1239 	n = atoi (ip->argbuf);
1240 	*ip->ap = ch;
1241 
1242 	return n;
1243 }
1244 
1245 __inline static int
1246 ite_zargnum (ip)
1247 	struct ite_softc *ip;
1248 {
1249 	char ch;
1250 	int n;
1251 
1252 	/* convert argument string into number */
1253 	if (ip->ap == ip->argbuf)
1254 		return 0;
1255 	ch = *ip->ap;
1256 	*ip->ap = 0;	/* terminate string */
1257 	n = atoi (ip->argbuf);
1258 	*ip->ap = ch;
1259 
1260 	return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1261 }
1262 
1263 void
1264 ite_putstr(s, len, dev)
1265 	const u_char *s;
1266 	int len;
1267 	dev_t dev;
1268 {
1269 	struct ite_softc *ip;
1270 	int i;
1271 
1272 	ip = getitesp(dev);
1273 
1274 	/* XXX avoid problems */
1275 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1276 	  	return;
1277 
1278 	SUBR_CURSOR(ip, START_CURSOROPT);
1279 	for (i = 0; i < len; i++)
1280 		if (s[i])
1281 			iteputchar(s[i], ip);
1282 	SUBR_CURSOR(ip, END_CURSOROPT);
1283 }
1284 
1285 void
1286 iteputchar(c, ip)
1287 	register int c;
1288 	struct ite_softc *ip;
1289 {
1290 	int n, x, y;
1291 	char *cp;
1292 
1293 	if (c >= 0x20 && ip->escape) {
1294 		switch (ip->escape) {
1295 
1296 		case ESC:
1297 			switch (c) {
1298 				/* first 7bit equivalents for the 8bit control characters */
1299 
1300 			case 'D':
1301 				c = IND;
1302 				ip->escape = 0;
1303 				break; /* and fall into the next switch below (same for all `break') */
1304 
1305 			case 'E':
1306 				/* next line */
1307 				c = NEL;
1308 				ip->escape = 0;
1309 				break;
1310 
1311 			case 'H':
1312 				/* set TAB at current col */
1313 				c = HTS;
1314 				ip->escape = 0;
1315 				break;
1316 
1317 			case 'M':
1318 				/* reverse index */
1319 				c = RI;
1320 				ip->escape = 0;
1321 				break;
1322 
1323 			case 'N':
1324 				/* single shift G2 */
1325 				c = SS2;
1326 				ip->escape = 0;
1327 				break;
1328 
1329 			case 'O':
1330 				/* single shift G3 */
1331 				c = SS3;
1332 				ip->escape = 0;
1333 				break;
1334 
1335 			case 'P':
1336 				/* DCS detected */
1337 				c = DCS;
1338 				ip->escape = 0;
1339 				break;
1340 
1341 			case '[':
1342 				c = CSI;
1343 				ip->escape = 0;
1344 				break;
1345 
1346 			case '\\':
1347 				/* String Terminator */
1348 				c = ST;
1349 				ip->escape = 0;
1350 				break;
1351 
1352 			case ']':
1353 				c = OSC;
1354 				ip->escape = 0;
1355 				break;
1356 
1357 			case '^':
1358 				c = PM;
1359 				ip->escape = 0;
1360 				break;
1361 
1362 			case '_':
1363 				c = APC;
1364 				ip->escape = 0;
1365 				break;
1366 
1367 
1368 			/* introduces 7/8bit control */
1369 			case ' ':
1370 				/* can be followed by either F or G */
1371 				ip->escape = ' ';
1372 				break;
1373 
1374 
1375 			/* a lot of character set selections, not yet used...
1376 			   94-character sets: */
1377 			case '(':	/* G0 */
1378 			case ')':	/* G1 */
1379 				ip->escape = c;
1380 				return;
1381 
1382 			case '*':	/* G2 */
1383 			case '+':	/* G3 */
1384 			case 'B':	/* ASCII */
1385 			case 'A':	/* ISO latin 1 */
1386 			case '<':	/* user preferred suplemental */
1387 			case '0':	/* dec special graphics */
1388 
1389 			/* 96-character sets: */
1390 			case '-':	/* G1 */
1391 			case '.':	/* G2 */
1392 			case '/':	/* G3 */
1393 
1394 			/* national character sets: */
1395 			case '4':	/* dutch */
1396 			case '5':
1397 			case 'C':	/* finnish */
1398 			case 'R':	/* french */
1399 			case 'Q':	/* french canadian */
1400 			case 'K':	/* german */
1401 			case 'Y':	/* italian */
1402 			case '6':	/* norwegian/danish */
1403 			/* note: %5 and %6 are not supported (two chars..) */
1404 
1405 				ip->escape = 0;
1406 				/* just ignore for now */
1407 				return;
1408 
1409 			/* 94-multibyte character sets designate */
1410 			case '$':
1411 				ip->escape = '$';
1412 				return;
1413 
1414 			/* locking shift modes */
1415 			case '`':
1416 				ip->GR = &ip->G1;
1417 				ip->escape = 0;
1418 				return;
1419 
1420 			case 'n':
1421 				ip->GL = &ip->G2;
1422 				ip->escape = 0;
1423 				return;
1424 
1425 			case '}':
1426 				ip->GR = &ip->G2;
1427 				ip->escape = 0;
1428 				return;
1429 
1430 			case 'o':
1431 				ip->GL = &ip->G3;
1432 				ip->escape = 0;
1433 				return;
1434 
1435 			case '|':
1436 				ip->GR = &ip->G3;
1437 				ip->escape = 0;
1438 				return;
1439 
1440 			case '~':
1441 				ip->GR = &ip->G1;
1442 				ip->escape = 0;
1443 				return;
1444 
1445 			/* font width/height control */
1446 			case '#':
1447 				ip->escape = '#';
1448 				return;
1449 
1450 			case 'c':
1451 				/* hard terminal reset .. */
1452 				ite_reset (ip);
1453 				SUBR_CURSOR(ip, MOVE_CURSOR);
1454 				ip->escape = 0;
1455 				return;
1456 
1457 
1458 			case '7':
1459 				/* save cursor */
1460 				ip->save_curx = ip->curx;
1461 				ip->save_cury = ip->cury;
1462 				ip->save_attribute = ip->attribute;
1463 				ip->sc_om = ip->inside_margins;
1464 				ip->sc_G0 = ip->G0;
1465 				ip->sc_G1 = ip->G1;
1466 				ip->sc_G2 = ip->G2;
1467 				ip->sc_G3 = ip->G3;
1468 				ip->sc_GL = ip->GL;
1469 				ip->sc_GR = ip->GR;
1470 				ip->escape = 0;
1471 				return;
1472 
1473 			case '8':
1474 				/* restore cursor */
1475 				ip->curx = ip->save_curx;
1476 				ip->cury = ip->save_cury;
1477 				ip->attribute = ip->save_attribute;
1478 				ip->inside_margins = ip->sc_om;
1479 				ip->G0 = ip->sc_G0;
1480 				ip->G1 = ip->sc_G1;
1481 				ip->G2 = ip->sc_G2;
1482 				ip->G3 = ip->sc_G3;
1483 				ip->GL = ip->sc_GL;
1484 				ip->GR = ip->sc_GR;
1485 				SUBR_CURSOR(ip, MOVE_CURSOR);
1486 				ip->escape = 0;
1487 				return;
1488 
1489 			case '=':
1490 				/* keypad application mode */
1491 				ip->keypad_appmode = 1;
1492 				ip->escape = 0;
1493 				return;
1494 
1495 			case '>':
1496 				/* keypad numeric mode */
1497 				ip->keypad_appmode = 0;
1498 				ip->escape = 0;
1499 				return;
1500 
1501 			case 'Z':	/* request ID */
1502 				if (ip->emul_level == EMUL_VT100)
1503 					ite_sendstr (ip, "\033[61;0c"); /* XXX not clean */
1504 				else
1505 					ite_sendstr (ip, "\033[63;0c"); /* XXX not clean */
1506 				ip->escape = 0;
1507 				return;
1508 
1509 			/* default catch all for not recognized ESC sequences */
1510 			default:
1511 				ip->escape = 0;
1512 				return;
1513 			}
1514 			break;
1515 
1516 
1517 		case '(': /* designate G0 */
1518 			switch (c) {
1519 			case 'B': /* USASCII */
1520 				ip->G0 = CSET_ASCII;
1521 				ip->escape = 0;
1522 				return;
1523 			case 'I':
1524 				ip->G0 = CSET_JISKANA;
1525 				ip->escape = 0;
1526 				return;
1527 			case 'J':
1528 				ip->G0 = CSET_JISROMA;
1529 				ip->escape = 0;
1530 				return;
1531 			case 'A': /* British or ISO-Latin-1 */
1532 			case 'H': /* Swedish */
1533 			case 'K': /* German */
1534 			case 'R': /* French */
1535 			case 'Y': /* Italian */
1536 			case 'Z': /* Spanish */
1537 			default:
1538 				/* not supported */
1539 				ip->escape = 0;
1540 				return;
1541 			}
1542 
1543 		case ')': /* designate G1 */
1544 			ip->escape = 0;
1545 			return;
1546 
1547 		case '$': /* 94-multibyte character set */
1548 			switch (c) {
1549 			case '@':
1550 				ip->G0 = CSET_JIS1978;
1551 				ip->escape = 0;
1552 				return;
1553 			case 'B':
1554 				ip->G0 = CSET_JIS1983;
1555 				ip->escape = 0;
1556 				return;
1557 			case 'D':
1558 				ip->G0 = CSET_JIS1990;
1559 				ip->escape = 0;
1560 				return;
1561 			default:
1562 				/* not supported */
1563 				ip->escape = 0;
1564 				return;
1565 			}
1566 
1567 		case ' ':
1568 			switch (c) {
1569 			case 'F':
1570 				ip->eightbit_C1 = 0;
1571 				ip->escape = 0;
1572 				return;
1573 
1574 			case 'G':
1575 				ip->eightbit_C1 = 1;
1576 				ip->escape = 0;
1577 				return;
1578 
1579 			default:
1580 				/* not supported */
1581 				ip->escape = 0;
1582 				return;
1583 			}
1584 			break;
1585 
1586 		case '#':
1587 			switch (c) {
1588 			case '5':
1589 				/* single height, single width */
1590 				ip->escape = 0;
1591 				return;
1592 
1593 			case '6':
1594 				/* double width, single height */
1595 				ip->escape = 0;
1596 				return;
1597 
1598 			case '3':
1599 				/* top half */
1600 				ip->escape = 0;
1601 				return;
1602 
1603 			case '4':
1604 				/* bottom half */
1605 				ip->escape = 0;
1606 				return;
1607 
1608 			case '8':
1609 				/* screen alignment pattern... */
1610 				alignment_display (ip);
1611 				ip->escape = 0;
1612 				return;
1613 
1614 			default:
1615 				ip->escape = 0;
1616 				return;
1617 			}
1618 			break;
1619 
1620 
1621 
1622 		case CSI:
1623 			/* the biggie... */
1624 			switch (c) {
1625 			case '0': case '1': case '2': case '3': case '4':
1626 			case '5': case '6': case '7': case '8': case '9':
1627 			case ';': case '\"': case '$': case '>':
1628 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1629 					*ip->ap++ = c;
1630 				return;
1631 
1632 			case 'p':
1633 				*ip->ap = 0;
1634 				if (!strncmp(ip->argbuf, "61\"", 3))
1635 					ip->emul_level = EMUL_VT100;
1636 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1637 					 || !strncmp(ip->argbuf, "62;1\"", 5))
1638 					ip->emul_level = EMUL_VT300_7;
1639 				else
1640 					ip->emul_level = EMUL_VT300_8;
1641 				ip->escape = 0;
1642 				return;
1643 
1644 
1645 			case '?':
1646 				*ip->ap = 0;
1647 				ip->escape = '?';
1648 				ip->ap = ip->argbuf;
1649 				return;
1650 
1651 
1652 			case 'c':
1653 				/* device attributes */
1654 				*ip->ap = 0;
1655 				if (ip->argbuf[0] == '>') {
1656 					ite_sendstr (ip, "\033[>24;0;0;0c");
1657 				} else
1658 					switch (ite_zargnum(ip)) {
1659 					case 0:
1660 						/* primary DA request, send primary DA response */
1661 						if (ip->emul_level == EMUL_VT100)
1662 							ite_sendstr (ip, "\033[?1;1c");
1663 						else
1664 							ite_sendstr (ip, "\033[63;0c");
1665 						break;
1666 					}
1667 				ip->escape = 0;
1668 				return;
1669 
1670 			case 'n':
1671 				switch (ite_zargnum(ip)) {
1672 				case 5:
1673 					ite_sendstr (ip, "\033[0n");	/* no malfunction */
1674 					break;
1675 				case 6:
1676 					/* cursor position report */
1677 					sprintf (ip->argbuf, "\033[%d;%dR",
1678 						 ip->cury + 1, ip->curx + 1);
1679 					ite_sendstr (ip, ip->argbuf);
1680 					break;
1681 				}
1682 				ip->escape = 0;
1683 				return;
1684 
1685 
1686 			case 'x':
1687 				switch (ite_zargnum(ip)) {
1688 				case 0:
1689 					/* Fake some terminal parameters.  */
1690 					ite_sendstr (ip, "\033[2;1;1;112;112;1;0x");
1691 					break;
1692 				case 1:
1693 					ite_sendstr (ip, "\033[3;1;1;112;112;1;0x");
1694 					break;
1695 				}
1696 				ip->escape = 0;
1697 				return;
1698 
1699 
1700 			case 'g':
1701 				/* clear tabs */
1702 				switch (ite_zargnum(ip)) {
1703 				case 0:
1704 					if (ip->curx < ip->cols)
1705 						ip->tabs[ip->curx] = 0;
1706 					break;
1707 				case 3:
1708 					for (n = 0; n < ip->cols; n++)
1709 						ip->tabs[n] = 0;
1710 					break;
1711 
1712 				default:
1713 					/* ignore */
1714 					break;
1715 				}
1716 				ip->escape = 0;
1717 				return;
1718 
1719 
1720 			case 'h': /* set mode */
1721 			case 'l': /* reset mode */
1722 				n = ite_zargnum (ip);
1723 				switch (n) {
1724 				case 4:
1725 					ip->imode = (c == 'h');	/* insert/replace mode */
1726 					break;
1727 				case 20:
1728 					ip->linefeed_newline = (c == 'h');
1729 					break;
1730 				}
1731 				ip->escape = 0;
1732 				return;
1733 
1734 
1735 			case 'M':
1736 				/* delete line */
1737 				ite_dnline (ip, ite_argnum (ip));
1738 				ip->escape = 0;
1739 				return;
1740 
1741 
1742 			case 'L':
1743 				/* insert line */
1744 				ite_inline (ip, ite_argnum (ip));
1745 				ip->escape = 0;
1746 				return;
1747 
1748 
1749 			case 'P':
1750 				/* delete char */
1751 				ite_dnchar (ip, ite_argnum (ip));
1752 				ip->escape = 0;
1753 				return;
1754 
1755 
1756 			case '@':
1757 				/* insert char(s) */
1758 				ite_inchar (ip, ite_argnum (ip));
1759 				ip->escape = 0;
1760 				return;
1761 
1762 			case '!':
1763 				/* soft terminal reset */
1764 				ip->escape = 0; /* XXX */
1765 				return;
1766 
1767 			case 'G':
1768 				/* this one was *not* in my vt320 manual but in
1769 				   a vt320 termcap entry.. who is right?
1770 				   It's supposed to set the horizontal cursor position. */
1771 				*ip->ap = 0;
1772 				x = atoi (ip->argbuf);
1773 				if (x) x--;
1774 				ip->curx = min(x, ip->cols - 1);
1775 				ip->escape = 0;
1776 				SUBR_CURSOR(ip, MOVE_CURSOR);
1777 				clr_attr (ip, ATTR_INV);
1778 				return;
1779 
1780 
1781 			case 'd':
1782 				/* same thing here, this one's for setting the absolute
1783 				   vertical cursor position. Not documented... */
1784 				*ip->ap = 0;
1785 				y = atoi (ip->argbuf);
1786 				if (y) y--;
1787 				if (ip->inside_margins)
1788 					y += ip->top_margin;
1789 				ip->cury = min(y, ip->rows - 1);
1790 				ip->escape = 0;
1791 				snap_cury(ip);
1792 				SUBR_CURSOR(ip, MOVE_CURSOR);
1793 				clr_attr (ip, ATTR_INV);
1794 				return;
1795 
1796 
1797 			case 'H':
1798 			case 'f':
1799 				*ip->ap = 0;
1800 				y = atoi (ip->argbuf);
1801 				x = 0;
1802 				cp = index (ip->argbuf, ';');
1803 				if (cp)
1804 					x = atoi (cp + 1);
1805 				if (x) x--;
1806 				if (y) y--;
1807 				if (ip->inside_margins)
1808 					y += ip->top_margin;
1809 				ip->cury = min(y, ip->rows - 1);
1810 				ip->curx = min(x, ip->cols - 1);
1811 				ip->escape = 0;
1812 				snap_cury(ip);
1813 				SUBR_CURSOR(ip, MOVE_CURSOR);
1814 				/*clr_attr (ip, ATTR_INV);*/
1815 				return;
1816 
1817 			case 'A':
1818 				/* cursor up */
1819 				n = ite_argnum (ip);
1820 				n = ip->cury - (n ? n : 1);
1821 				if (n < 0) n = 0;
1822 				if (ip->inside_margins)
1823 					n = max(ip->top_margin, n);
1824 				else if (n == ip->top_margin - 1)
1825 					/* allow scrolling outside region, but don't scroll out
1826 					   of active region without explicit CUP */
1827 					n = ip->top_margin;
1828 				ip->cury = n;
1829 				ip->escape = 0;
1830 				SUBR_CURSOR(ip, MOVE_CURSOR);
1831 				clr_attr (ip, ATTR_INV);
1832 				return;
1833 
1834 			case 'B':
1835 				/* cursor down */
1836 				n = ite_argnum (ip);
1837 				n = ip->cury + (n ? n : 1);
1838 				n = min(ip->rows - 1, n);
1839 #if 0
1840 				if (ip->inside_margins)
1841 #endif
1842 					n = min(ip->bottom_margin, n);
1843 #if 0
1844 				else if (n == ip->bottom_margin + 1)
1845 					/* allow scrolling outside region, but don't scroll out
1846 					   of active region without explicit CUP */
1847 					n = ip->bottom_margin;
1848 #endif
1849 				ip->cury = n;
1850 				ip->escape = 0;
1851 				SUBR_CURSOR(ip, MOVE_CURSOR);
1852 				clr_attr (ip, ATTR_INV);
1853 				return;
1854 
1855 			case 'C':
1856 				/* cursor forward */
1857 				n = ite_argnum (ip);
1858 				n = n ? n : 1;
1859 				ip->curx = min(ip->curx + n, ip->cols - 1);
1860 				ip->escape = 0;
1861 				SUBR_CURSOR(ip, MOVE_CURSOR);
1862 				clr_attr (ip, ATTR_INV);
1863 				return;
1864 
1865 			case 'D':
1866 				/* cursor backward */
1867 				n = ite_argnum (ip);
1868 				n = n ? n : 1;
1869 				n = ip->curx - n;
1870 				ip->curx = n >= 0 ? n : 0;
1871 				ip->escape = 0;
1872 				SUBR_CURSOR(ip, MOVE_CURSOR);
1873 				clr_attr (ip, ATTR_INV);
1874 				return;
1875 
1876 
1877 			case 'J':
1878 				/* erase screen */
1879 				*ip->ap = 0;
1880 				n = ite_zargnum (ip);
1881 				if (n == 0)
1882 					ite_clrtoeos(ip);
1883 				else if (n == 1)
1884 					ite_clrtobos(ip);
1885 				else if (n == 2)
1886 					ite_clrscreen(ip);
1887 				ip->escape = 0;
1888 				return;
1889 
1890 
1891 			case 'K':
1892 				/* erase line */
1893 				n = ite_zargnum (ip);
1894 				if (n == 0)
1895 					ite_clrtoeol(ip);
1896 				else if (n == 1)
1897 					ite_clrtobol(ip);
1898 				else if (n == 2)
1899 					ite_clrline(ip);
1900 				ip->escape = 0;
1901 				return;
1902 
1903 			case 'S':
1904 				/* scroll up */
1905 				n = ite_zargnum (ip);
1906 				if (n <= 0)
1907 					n = 1;
1908 				else if (n > ip->rows-1)
1909 					n = ip->rows-1;
1910 				SUBR_SCROLL(ip, ip->rows-1, 0, n, SCROLL_UP);
1911 				ip->escape = 0;
1912 				return;
1913 
1914 			case 'T':
1915 				/* scroll down */
1916 				n = ite_zargnum (ip);
1917 				if (n <= 0)
1918 					n = 1;
1919 				else if (n > ip->rows-1)
1920 					n = ip->rows-1;
1921 				SUBR_SCROLL(ip, 0, 0, n, SCROLL_DOWN);
1922 				ip->escape = 0;
1923 				return;
1924 
1925 			case 'X':
1926 				/* erase character */
1927 				n = ite_argnum(ip) - 1;
1928 				n = min(n, ip->cols - 1 - ip->curx);
1929 				for (; n >= 0; n--) {
1930 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1931 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1932 				}
1933 				ip->escape = 0;
1934 				return;
1935 
1936 
1937 			case '}': case '`':
1938 				/* status line control */
1939 				ip->escape = 0;
1940 				return;
1941 
1942 			case 'r':
1943 				/* set scrolling region */
1944 				ip->escape = 0;
1945 				*ip->ap = 0;
1946 				x = atoi (ip->argbuf);
1947 				x = x ? x : 1;
1948 				y = ip->rows;
1949 				cp = index (ip->argbuf, ';');
1950 				if (cp) {
1951 					y = atoi (cp + 1);
1952 					y = y ? y : ip->rows;
1953 				}
1954 				if (y <= x)
1955 					return;
1956 				x--;
1957 				y--;
1958 				ip->top_margin = min(x, ip->rows - 2);
1959 				ip->bottom_margin = min(y, ip->rows - 1);
1960 				if (ip->inside_margins) {
1961 					ip->cury = ip->top_margin;
1962 				} else
1963 					ip->cury = 0;
1964 				ip->curx = 0;
1965 				return;
1966 
1967 
1968 			case 'm':
1969 				/* big attribute setter/resetter */
1970 			{
1971 				char *cp;
1972 				*ip->ap = 0;
1973 				/* kludge to make CSIm work (== CSI0m) */
1974 				if (ip->ap == ip->argbuf)
1975 					ip->ap++;
1976 				for (cp = ip->argbuf; cp < ip->ap; ) {
1977 					switch (*cp) {
1978 					case 0:
1979 					case '0':
1980 						clr_attr (ip, ATTR_ALL);
1981 						ip->fgcolor = 7;
1982 						ip->bgcolor = 0;
1983 						cp++;
1984 						break;
1985 
1986 					case '1':
1987 						set_attr (ip, ATTR_BOLD);
1988 						cp++;
1989 						break;
1990 
1991 					case '2':
1992 						switch (cp[1]) {
1993 						case '2':
1994 							clr_attr (ip, ATTR_BOLD);
1995 							cp += 2;
1996 							break;
1997 
1998 						case '4':
1999 							clr_attr (ip, ATTR_UL);
2000 							cp += 2;
2001 							break;
2002 
2003 						case '5':
2004 							clr_attr (ip, ATTR_BLINK);
2005 							cp += 2;
2006 							break;
2007 
2008 						case '7':
2009 							clr_attr (ip, ATTR_INV);
2010 							cp += 2;
2011 							break;
2012 
2013 						default:
2014 							cp++;
2015 							break;
2016 						}
2017 						break;
2018 
2019 					case '3':
2020 						switch (cp[1]) {
2021 						case '0': case '1': case '2': case '3':
2022 						case '4': case '5': case '6': case '7':
2023 							/* foreground colors */
2024 							ip->fgcolor = cp[1] - '0';
2025 							cp += 2;
2026 							break;
2027 						default:
2028 							cp++;
2029 							break;
2030 						}
2031 						break;
2032 
2033 					case '4':
2034 						switch (cp[1]) {
2035 						case '0': case '1': case '2': case '3':
2036 						case '4': case '5': case '6': case '7':
2037 							/* background colors */
2038 							ip->bgcolor = cp[1] - '0';
2039 							cp += 2;
2040 							break;
2041 						default:
2042 							set_attr (ip, ATTR_UL);
2043 							cp++;
2044 							break;
2045 						}
2046 						break;
2047 
2048 					case '5':
2049 						set_attr (ip, ATTR_BLINK);
2050 						cp++;
2051 						break;
2052 
2053 					case '7':
2054 						set_attr (ip, ATTR_INV);
2055 						cp++;
2056 						break;
2057 
2058 					default:
2059 						cp++;
2060 						break;
2061 					}
2062 				}
2063 
2064 			}
2065 				ip->escape = 0;
2066 				return;
2067 
2068 
2069 			case 'u':
2070 				/* DECRQTSR */
2071 				ite_sendstr (ip, "\033P\033\\");
2072 				ip->escape = 0;
2073 				return;
2074 
2075 			default:
2076 				ip->escape = 0;
2077 				return;
2078 			}
2079 			break;
2080 
2081 
2082 
2083 		case '?':	/* CSI ? */
2084 			switch (c) {
2085 			case '0': case '1': case '2': case '3': case '4':
2086 			case '5': case '6': case '7': case '8': case '9':
2087 			case ';': case '\"': case '$':
2088 				/* Don't fill the last character; it's needed.  */
2089 				/* XXX yeah, where ?? */
2090 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2091 					*ip->ap++ = c;
2092 				return;
2093 
2094 
2095 			case 'n':
2096 				/* Terminal Reports */
2097 				*ip->ap = 0;
2098 				if (ip->ap == &ip->argbuf[2]) {
2099 					if (!strncmp(ip->argbuf, "15", 2))
2100 						/* printer status: no printer */
2101 						ite_sendstr (ip, "\033[13n");
2102 
2103 					else if (!strncmp(ip->argbuf, "25", 2))
2104 						/* udk status */
2105 						ite_sendstr (ip, "\033[20n");
2106 
2107 					else if (!strncmp(ip->argbuf, "26", 2))
2108 						/* keyboard dialect: US */
2109 						ite_sendstr (ip, "\033[27;1n");
2110 				}
2111 				ip->escape = 0;
2112 				return;
2113 
2114 
2115 			case 'h': /* set dec private modes */
2116 			case 'l': /* reset dec private modes */
2117 				n = ite_zargnum (ip);
2118 				switch (n) {
2119 				case 1:
2120 					/* CKM - cursor key mode */
2121 					ip->cursor_appmode = (c == 'h');
2122 					break;
2123 
2124 				case 3:
2125 					/* 132/80 columns (132 == 'h') */
2126 					break;
2127 
2128 				case 4: /* smooth scroll */
2129 					break;
2130 
2131 				case 5:
2132 					/* light background (=='h') /dark background(=='l') */
2133 					break;
2134 
2135 				case 6: /* origin mode */
2136 					ip->inside_margins = (c == 'h');
2137 #if 0
2138 					ip->curx = 0;
2139 					ip->cury = ip->inside_margins ? ip->top_margin : 0;
2140 					SUBR_CURSOR(ip, MOVE_CURSOR);
2141 #endif
2142 					break;
2143 
2144 				case 7: /* auto wraparound */
2145 					ip->auto_wrap = (c == 'h');
2146 					break;
2147 
2148 				case 8: /* keyboard repeat */
2149 					ip->key_repeat = (c == 'h');
2150 					break;
2151 
2152 				case 20: /* newline mode */
2153 					ip->linefeed_newline = (c == 'h');
2154 					break;
2155 
2156 				case 25: /* cursor on/off */
2157 					SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR);
2158 					break;
2159 				}
2160 				ip->escape = 0;
2161 				return;
2162 
2163 			case 'K':
2164 				/* selective erase in line */
2165 			case 'J':
2166 				/* selective erase in display */
2167 
2168 			default:
2169 				ip->escape = 0;
2170 				return;
2171 			}
2172 			break;
2173 
2174 
2175 		default:
2176 			ip->escape = 0;
2177 			return;
2178 		}
2179 	}
2180 
2181 	switch (c) {
2182 	case 0x00:	/* NUL */
2183 	case 0x01:	/* SOH */
2184 	case 0x02:	/* STX */
2185 	case 0x03:	/* ETX */
2186 	case 0x04:	/* EOT */
2187 	case 0x05:	/* ENQ */
2188 	case 0x06:	/* ACK */
2189 		break;
2190 
2191 	case BEL:
2192 #if NBELL > 0
2193 		if (kbd_ite && ite_tty[kbd_ite->device.dv_unit])
2194 			opm_bell();
2195 #endif
2196 		break;
2197 
2198 	case BS:
2199 		if (--ip->curx < 0)
2200 			ip->curx = 0;
2201 		else
2202 			SUBR_CURSOR(ip, MOVE_CURSOR);
2203 		break;
2204 
2205 	case HT:
2206 		for (n = ip->curx + 1; n < ip->cols; n++) {
2207 			if (ip->tabs[n]) {
2208 				ip->curx = n;
2209 				SUBR_CURSOR(ip, MOVE_CURSOR);
2210 				break;
2211 			}
2212 		}
2213 		break;
2214 
2215 	case VT:	/* VT is treated like LF */
2216 	case FF:	/* so is FF */
2217 	case LF:
2218 		/* cr->crlf distinction is done here, on output,
2219 		   not on input! */
2220 		if (ip->linefeed_newline)
2221 			ite_crlf (ip);
2222 		else
2223 			ite_lf (ip);
2224 		break;
2225 
2226 	case CR:
2227 		ite_cr (ip);
2228 		break;
2229 
2230 
2231 	case SO:
2232 		ip->GL = &ip->G1;
2233 		break;
2234 
2235 	case SI:
2236 		ip->GL = &ip->G0;
2237 		break;
2238 
2239 	case 0x10:	/* DLE */
2240 	case 0x11:	/* DC1/XON */
2241 	case 0x12:	/* DC2 */
2242 	case 0x13:	/* DC3/XOFF */
2243 	case 0x14:	/* DC4 */
2244 	case 0x15:	/* NAK */
2245 	case 0x16:	/* SYN */
2246 	case 0x17:	/* ETB */
2247 		break;
2248 
2249 	case CAN:
2250 		ip->escape = 0;	/* cancel any escape sequence in progress */
2251 		break;
2252 
2253 	case 0x19:	/* EM */
2254 		break;
2255 
2256 	case SUB:
2257 		ip->escape = 0;	/* dito, but see below */
2258 		/* should also display a reverse question mark!! */
2259 		break;
2260 
2261 	case ESC:
2262 		ip->escape = ESC;
2263 		break;
2264 
2265 	case 0x1c:	/* FS */
2266 	case 0x1d:	/* GS */
2267 	case 0x1e:	/* RS */
2268 	case 0x1f:	/* US */
2269 		break;
2270 
2271 	/* now it gets weird.. 8bit control sequences.. */
2272 	case IND:	/* index: move cursor down, scroll */
2273 		ite_index (ip);
2274 		break;
2275 
2276 	case NEL:	/* next line. next line, first pos. */
2277 		ite_crlf (ip);
2278 		break;
2279 
2280 	case HTS:	/* set horizontal tab */
2281 		if (ip->curx < ip->cols)
2282 			ip->tabs[ip->curx] = 1;
2283 		break;
2284 
2285 	case RI:	/* reverse index */
2286 		ite_rlf (ip);
2287 		break;
2288 
2289 	case SS2:	/* go into G2 for one character */
2290 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2291 		ip->GR = &ip->G2;	/* GL XXX */
2292 		break;
2293 
2294 	case SS3:	/* go into G3 for one character */
2295 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2296 		ip->GR = &ip->G3;	/* GL XXX */
2297 		break;
2298 
2299 	case DCS:	/* device control string introducer */
2300 		ip->escape = DCS;
2301 		ip->ap = ip->argbuf;
2302 		break;
2303 
2304 	case CSI:	/* control sequence introducer */
2305 		ip->escape = CSI;
2306 		ip->ap = ip->argbuf;
2307 		break;
2308 
2309 	case ST:	/* string terminator */
2310 		/* ignore, if not used as terminator */
2311 		break;
2312 
2313 	case OSC:	/* introduces OS command. Ignore everything upto ST */
2314 		ip->escape = OSC;
2315 		break;
2316 
2317 	case PM:	/* privacy message, ignore everything upto ST */
2318 		ip->escape = PM;
2319 		break;
2320 
2321 	case APC:	/* application program command, ignore everything upto ST */
2322 		ip->escape = APC;
2323 		break;
2324 
2325 	case DEL:
2326 		break;
2327 
2328 	default:
2329 		if (!ip->save_char && (*((c & 0x80) ? ip->GR : ip->GL) & CSET_MULTI)) {
2330 			ip->save_char = c;
2331 			break;
2332 		}
2333 		if (ip->imode)
2334 			ite_inchar(ip, ip->save_char ? 2 : 1);
2335 		iteprecheckwrap(ip);
2336 #ifdef DO_WEIRD_ATTRIBUTES
2337 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2338 			attrset(ip, ATTR_INV);
2339 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2340 		}
2341 		else
2342 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2343 #else
2344 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2345 #endif
2346 /*		SUBR_CURSOR(ip, DRAW_CURSOR);*/
2347 		itecheckwrap(ip);
2348 		if (ip->save_char) {
2349 			itecheckwrap(ip);
2350 			ip->save_char = 0;
2351 		}
2352 		if (ip->save_GL) {
2353 			/*
2354 			 * reset single shift
2355 			 */
2356 			ip->GR = ip->save_GL;
2357 			ip->save_GL = 0;
2358 		}
2359 		break;
2360 	}
2361 }
2362 
2363 static void
2364 iteprecheckwrap(ip)
2365 	struct ite_softc *ip;
2366 {
2367 	if (ip->auto_wrap && ip->curx + (ip->save_char ? 1 : 0) == ip->cols) {
2368 		ip->curx = 0;
2369 		clr_attr(ip, ATTR_INV);
2370 		if (++ip->cury >= ip->bottom_margin + 1) {
2371 			ip->cury = ip->bottom_margin;
2372 			/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2373 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2374 			ite_clrtoeol(ip);
2375 		} /*else
2376 			SUBR_CURSOR(ip, MOVE_CURSOR);*/
2377 	}
2378 }
2379 
2380 static void
2381 itecheckwrap(ip)
2382      struct ite_softc *ip;
2383 {
2384 #if 0
2385 	if (++ip->curx == ip->cols) {
2386 		if (ip->auto_wrap) {
2387 			ip->curx = 0;
2388 			clr_attr(ip, ATTR_INV);
2389 			if (++ip->cury >= ip->bottom_margin + 1) {
2390 				ip->cury = ip->bottom_margin;
2391 				SUBR_CURSOR(ip, MOVE_CURSOR);
2392 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2393 				ite_clrtoeol(ip);
2394 				return;
2395 			}
2396 		} else
2397 			/* stay there if no autowrap.. */
2398 			ip->curx--;
2399 	}
2400 #else
2401 	if (ip->curx < ip->cols) {
2402 		ip->curx++;
2403 		/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2404 	}
2405 #endif
2406 }
2407 
2408 #endif
2409 
2410 #if NITE > 0 && NKBD > 0
2411 
2412 /*
2413  * Console functions
2414  */
2415 #include <dev/cons.h>
2416 extern void kbdenable __P((int));
2417 extern int kbdcngetc __P((void));
2418 
2419 /*
2420  * Return a priority in consdev->cn_pri field highest wins.  This function
2421  * is called before any devices have been probed.
2422  */
2423 void
2424 itecnprobe(cd)
2425 	struct consdev *cd;
2426 {
2427 	int maj;
2428 
2429 	/* locate the major number */
2430 	maj = cdevsw_lookup_major(&ite_cdevsw);
2431 
2432 	/*
2433 	 * return priority of the best ite (already picked from attach)
2434 	 * or CN_DEAD.
2435 	 */
2436 	if (con_itesoftc.grf == NULL)
2437 		cd->cn_pri = CN_DEAD;
2438 	else {
2439 		con_itesoftc.flags = (ITE_ALIVE|ITE_CONSOLE);
2440 		/*
2441 		 * hardcode the minor number.
2442 		 * currently we support only one ITE, it is enough for now.
2443 		 */
2444 		con_itesoftc.isw = &itesw[0];
2445 		cd->cn_pri = CN_INTERNAL;
2446 		cd->cn_dev = makedev(maj, 0);
2447 	}
2448 
2449 }
2450 
2451 void
2452 itecninit(cd)
2453 	struct consdev *cd;
2454 {
2455 	struct ite_softc *ip;
2456 
2457 	ip = getitesp(cd->cn_dev);
2458 	iteinit(cd->cn_dev);	       /* init console unit */
2459 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
2460 	kbdenable(0);
2461 	mfp_send_usart(0x49);
2462 }
2463 
2464 /*
2465  * itecnfinish() is called in ite_init() when the device is
2466  * being probed in the normal fasion, thus we can finish setting
2467  * up this ite now that the system is more functional.
2468  */
2469 void
2470 itecnfinish(ip)
2471 	struct ite_softc *ip;
2472 {
2473 	static int done;
2474 
2475 	if (done)
2476 		return;
2477 	done = 1;
2478 }
2479 
2480 /*ARGSUSED*/
2481 int
2482 itecngetc(dev)
2483 	dev_t dev;
2484 {
2485 	register int c;
2486 
2487 	do {
2488 		c = kbdcngetc();
2489 		c = ite_cnfilter(c);
2490 	} while (c == -1);
2491 	return (c);
2492 }
2493 
2494 void
2495 itecnputc(dev, c)
2496 	dev_t dev;
2497 	int c;
2498 {
2499 	static int paniced = 0;
2500 	struct ite_softc *ip = getitesp(dev);
2501 	char ch = c;
2502 #ifdef ITE_KERNEL_ATTR
2503 	short save_attribute;
2504 #endif
2505 
2506 	if (panicstr && !paniced &&
2507 	    (ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) {
2508 		(void) iteon(dev, 3);
2509 		paniced = 1;
2510 	}
2511 #ifdef ITE_KERNEL_ATTR
2512 	save_attribute = ip->attribute;
2513 	ip->attribute = ITE_KERNEL_ATTR;
2514 #endif
2515 	ite_putstr(&ch, 1, dev);
2516 #ifdef ITE_KERNEL_ATTR
2517 	ip->attribute = save_attribute;
2518 #endif
2519 }
2520 #endif
2521