xref: /netbsd/sys/arch/x68k/dev/ite.c (revision bf9ec67e)
1 /*	$NetBSD: ite.c,v 1.28 2002/03/17 19:40:53 atatat 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 cdev_decl(ite);
150 
151 void	itestart __P((struct tty *tp));
152 
153 void iteputchar __P((int c, struct ite_softc *ip));
154 void ite_putstr __P((const u_char * s, int len, dev_t dev));
155 
156 void iteattach __P((struct device *, struct device *, void *));
157 int itematch __P((struct device *, struct cfdata *, void *));
158 
159 struct cfattach ite_ca = {
160 	sizeof(struct ite_softc), itematch, iteattach
161 };
162 
163 extern struct cfdriver ite_cd;
164 
165 int
166 itematch(pdp, cdp, auxp)
167 	struct device *pdp;
168 	struct cfdata *cdp;
169 	void *auxp;
170 {
171 	struct grf_softc *gp;
172 #if 0
173 	int maj;
174 #endif
175 
176 	gp = auxp;
177 
178 	/* ite0 should be at grf0 XXX */
179 	if(cdp->cf_unit != gp->g_device.dv_unit)
180 		return(0);
181 
182 #if 0
183 	/*
184 	 * all that our mask allows (more than enough no one
185 	 * has > 32 monitors for text consoles on one machine)
186 	 */
187 	if (cdp->cf_unit >= sizeof(ite_confunits) * NBBY)
188 		return(0);
189 	/*
190 	 * XXX
191 	 * normally this would be done in attach, however
192 	 * during early init we do not have a device pointer
193 	 * and thus no unit number.
194 	 */
195 	for(maj = 0; maj < nchrdev; maj++)
196 		if (cdevsw[maj].d_open == iteopen)
197 			break;
198 	gp->g_itedev = makedev(maj, cdp->cf_unit);
199 #endif
200 	return(1);
201 }
202 
203 /*
204  * iteinit() is the standard entry point for initialization of
205  * an ite device, it is also called from ite_cninit().
206  */
207 void
208 iteattach(pdp, dp, auxp)
209 	struct device *pdp, *dp;
210 	void *auxp;
211 {
212 	struct ite_softc *ip;
213 	struct grf_softc *gp;
214 
215 	gp = (struct grf_softc *)auxp;
216 	if (dp) {
217 		ip = (struct ite_softc *)dp;
218 		if(con_itesoftc.grf != NULL
219 			/*&& con_itesoftc.grf->g_unit == gp->g_unit*/) {
220 			/*
221 			 * console reinit copy params over.
222 			 * and console always gets keyboard
223 			 */
224 			memcpy(&ip->grf, &con_itesoftc.grf,
225 			    (char *)&ip[1] - (char *)&ip->grf);
226 			con_itesoftc.grf = NULL;
227 			kbd_ite = ip;
228 		}
229 		ip->grf = gp;
230 		iteinit(ip->device.dv_unit); /* XXX */
231 		printf(": rows %d cols %d", ip->rows, ip->cols);
232 		if (kbd_ite == NULL)
233 			kbd_ite = ip;
234 		printf("\n");
235 	} else {
236 		if (con_itesoftc.grf != NULL)
237 			return;
238 		con_itesoftc.grf = gp;
239 		con_itesoftc.tabs = cons_tabs;
240 	}
241 }
242 
243 struct ite_softc *
244 getitesp(dev)
245 	dev_t dev;
246 {
247 	extern int x68k_realconfig;
248 
249 	if (x68k_realconfig && con_itesoftc.grf == NULL)
250 		return(ite_cd.cd_devs[UNIT(dev)]);
251 
252 	if (con_itesoftc.grf == NULL)
253 		panic("no ite_softc for console");
254 	return(&con_itesoftc);
255 }
256 
257 void
258 iteinit(dev)
259 	dev_t dev;
260 {
261 	struct ite_softc *ip;
262 
263 	ip = getitesp(dev);
264 
265 	if (ip->flags & ITE_INITED)
266 		return;
267 	memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
268 
269 	ip->curx = 0;
270 	ip->cury = 0;
271 	ip->cursorx = 0;
272 	ip->cursory = 0;
273 
274 	ip->isw = &itesw[ip->device.dv_unit]; /* XXX */
275 	SUBR_INIT(ip);
276 	SUBR_CURSOR(ip, DRAW_CURSOR);
277 	if (!ip->tabs)
278 		ip->tabs = malloc(MAX_TABS*sizeof(u_char), M_DEVBUF, M_WAITOK);
279 	ite_reset(ip);
280 	ip->flags |= ITE_INITED;
281 }
282 
283 /*
284  * Perform functions necessary to setup device as a terminal emulator.
285  */
286 int
287 iteon(dev, flag)
288 	dev_t dev;
289 	int flag;
290 {
291 	int unit = UNIT(dev);
292 	struct ite_softc *ip;
293 
294 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
295 	    (ip = getitesp(unit)) == NULL || (ip->flags&ITE_ALIVE) == 0)
296 		return(ENXIO);
297 	/* force ite active, overriding graphics mode */
298 	if (flag & 1) {
299 		ip->flags |= ITE_ACTIVE;
300 		ip->flags &= ~(ITE_INGRF|ITE_INITED);
301 	}
302 	/* leave graphics mode */
303 	if (flag & 2) {
304 		ip->flags &= ~ITE_INGRF;
305 		if ((ip->flags & ITE_ACTIVE) == 0)
306 			return(0);
307 	}
308 	ip->flags |= ITE_ACTIVE;
309 	if (ip->flags & ITE_INGRF)
310 		return(0);
311 	iteinit(dev);
312 	if (flag & 2)
313 		ite_reset(ip);
314 #if NKBD > 0
315 	mfp_send_usart (0x49);	/* XXX */
316 #endif
317 	return(0);
318 }
319 
320 /*
321  * "Shut down" device as terminal emulator.
322  * Note that we do not deinit the console device unless forced.
323  * Deinit'ing the console every time leads to a very active
324  * screen when processing /etc/rc.
325  */
326 void
327 iteoff(dev, flag)
328 	dev_t dev;
329 	int flag;
330 {
331 	int unit = UNIT(dev);
332 	register struct ite_softc *ip;
333 
334 	/* XXX check whether when call from grf.c */
335 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
336 	    (ip = getitesp(unit)) == NULL || (ip->flags&ITE_ALIVE) == 0)
337 		return;
338 	if (flag & 2)
339 		ip->flags |= ITE_INGRF;
340 
341 	if ((ip->flags & ITE_ACTIVE) == 0)
342 		return;
343 	if ((flag & 1) ||
344 	    (ip->flags & (ITE_INGRF|ITE_ISCONS|ITE_INITED)) == ITE_INITED)
345 		SUBR_DEINIT(ip);
346 
347 	/*
348 	 * XXX When the system is rebooted with "reboot", init(8)
349 	 * kills the last process to have the console open.
350 	 * If we don't revent the the ITE_ACTIVE bit from being
351 	 * cleared, we will never see messages printed during
352 	 * the process of rebooting.
353 	 */
354 	if ((flag & 2) == 0 && (ip->flags & ITE_ISCONS) == 0) {
355 		ip->flags &= ~ITE_ACTIVE;
356 #if NKBD > 0
357 		mfp_send_usart (0x48);	/* XXX */
358 #endif
359 	}
360 }
361 
362 /*
363  * standard entry points to the device.
364  */
365 
366 /* ARGSUSED */
367 int
368 iteopen(dev, mode, devtype, p)
369 	dev_t dev;
370 	int mode, devtype;
371 	struct proc *p;
372 {
373 	int unit = UNIT(dev);
374 	register struct tty *tp;
375 	register struct ite_softc *ip;
376 	register int error;
377 	int first = 0;
378 
379 	if (unit >= ite_cd.cd_ndevs || (ip = getitesp(dev)) == NULL)
380 		return (ENXIO);
381 	if (!ite_tty[unit]) {
382 		tp = ite_tty[unit] = ttymalloc();
383 		tty_attach(tp);
384 	} else
385 		tp = ite_tty[unit];
386 	if ((tp->t_state&(TS_ISOPEN|TS_XCLUDE)) == (TS_ISOPEN|TS_XCLUDE)
387 	    && p->p_ucred->cr_uid != 0)
388 		return (EBUSY);
389 	if ((ip->flags & ITE_ACTIVE) == 0) {
390 		error = iteon(dev, 0);
391 		if (error)
392 			return (error);
393 		first = 1;
394 	}
395 	tp->t_oproc = itestart;
396 	tp->t_param = NULL;
397 	tp->t_dev = dev;
398 	if ((tp->t_state&TS_ISOPEN) == 0) {
399 		ttychars(tp);
400 		tp->t_iflag = TTYDEF_IFLAG;
401 		tp->t_oflag = TTYDEF_OFLAG;
402 		tp->t_cflag = TTYDEF_CFLAG;
403 		tp->t_lflag = TTYDEF_LFLAG;
404 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
405 		tp->t_state = TS_ISOPEN|TS_CARR_ON;
406 		ttsetwater(tp);
407 	}
408 	error = (*tp->t_linesw->l_open)(dev, tp);
409 	if (error == 0) {
410 		tp->t_winsize.ws_row = ip->rows;
411 		tp->t_winsize.ws_col = ip->cols;
412 	} else if (first)
413 		iteoff(dev, 0);
414 	return (error);
415 }
416 
417 /*ARGSUSED*/
418 int
419 iteclose(dev, flag, mode, p)
420 	dev_t dev;
421 	int flag, mode;
422 	struct proc *p;
423 {
424 	register struct tty *tp = ite_tty[UNIT(dev)];
425 
426 	(*tp->t_linesw->l_close)(tp, flag);
427 	ttyclose(tp);
428 	iteoff(dev, 0);
429 #if 0
430 	ttyfree(tp);
431 	ite_tty[UNIT(dev)] = (struct tty *)0;
432 #endif
433 	return(0);
434 }
435 
436 int
437 iteread(dev, uio, flag)
438 	dev_t dev;
439 	struct uio *uio;
440 	int flag;
441 {
442 	register struct tty *tp = ite_tty[UNIT(dev)];
443 
444 	return ((*tp->t_linesw->l_read)(tp, uio, flag));
445 }
446 
447 int
448 itewrite(dev, uio, flag)
449 	dev_t dev;
450 	struct uio *uio;
451 	int flag;
452 {
453 	register struct tty *tp = ite_tty[UNIT(dev)];
454 
455 	return ((*tp->t_linesw->l_write)(tp, uio, flag));
456 }
457 
458 int
459 itepoll(dev, events, p)
460 	dev_t dev;
461 	int events;
462 	struct proc *p;
463 {
464 	register struct tty *tp = ite_tty[UNIT(dev)];
465 
466 	return ((*tp->t_linesw->l_poll)(tp, events, p));
467 }
468 
469 struct tty *
470 itetty(dev)
471 	dev_t dev;
472 {
473 
474 	return (ite_tty[UNIT(dev)]);
475 }
476 
477 int
478 iteioctl(dev, cmd, addr, flag, p)
479 	dev_t dev;
480 	u_long cmd;
481 	caddr_t addr;
482 	int flag;
483 	struct proc *p;
484 {
485 	struct iterepeat *irp;
486 	register struct tty *tp = ite_tty[UNIT(dev)];
487 	int error;
488 
489 	error = (*tp->t_linesw->l_ioctl)(tp, cmd, addr, flag, p);
490 	if (error != EPASSTHROUGH)
491 		return (error);
492 
493 	error = ttioctl(tp, cmd, addr, flag, p);
494 	if (error != EPASSTHROUGH)
495 		return (error);
496 
497 	switch (cmd) {
498 	case ITEIOCSKMAP:
499 		if (addr == 0)
500 			return(EFAULT);
501 		memcpy(&kbdmap, addr, sizeof(struct kbdmap));
502 		return(0);
503 
504 	case ITEIOCGKMAP:
505 		if (addr == NULL)
506 			return(EFAULT);
507 		memcpy(addr, &kbdmap, sizeof(struct kbdmap));
508 		return(0);
509 
510 	case ITEIOCGREPT:
511 		irp = (struct iterepeat *)addr;
512 		irp->start = start_repeat_timeo;
513 		irp->next = next_repeat_timeo;
514 
515 	case ITEIOCSREPT:
516 		irp = (struct iterepeat *)addr;
517 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
518 			return(EINVAL);
519 		start_repeat_timeo = irp->start;
520 		next_repeat_timeo = irp->next;
521 #if x68k
522 	case ITELOADFONT:
523 		if (addr) {
524 			memcpy(kern_font, addr, 4096 /*sizeof (kernel_font)*/);
525 			ite_set_glyph();
526 			return 0;
527 		} else
528 			return EFAULT;
529 
530 	case ITETVCTRL:
531 		if (addr && *(u_int8_t *)addr < 0x40) {
532 			return mfp_send_usart (* (u_int8_t *)addr);
533 		} else {
534 			return EFAULT;
535 		}
536 #endif
537 	}
538 	return (EPASSTHROUGH);
539 }
540 
541 void
542 itestart(tp)
543 	register struct tty *tp;
544 {
545 	struct clist *rbp;
546 	struct ite_softc *ip;
547 	u_char buf[ITEBURST];
548 	int s, len;
549 
550 	ip = getitesp(tp->t_dev);
551 	/*
552 	 * (Potentially) lower priority.  We only need to protect ourselves
553 	 * from keyboard interrupts since that is all that can affect the
554 	 * state of our tty (kernel printf doesn't go through this routine).
555 	 */
556 	s = spltty();
557 	if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
558 		goto out;
559 	tp->t_state |= TS_BUSY;
560 	rbp = &tp->t_outq;
561 	len = q_to_b(rbp, buf, ITEBURST);
562 	/*splx(s);*/
563 
564 	/* Here is a really good place to implement pre/jumpscroll() */
565 	ite_putstr(buf, len, tp->t_dev);
566 
567 	/*s = spltty();*/
568 	tp->t_state &= ~TS_BUSY;
569 	/* we have characters remaining. */
570 	if (rbp->c_cc) {
571 		tp->t_state |= TS_TIMEOUT;
572 		callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
573 	}
574 	/* wakeup we are below */
575 	if (rbp->c_cc <= tp->t_lowat) {
576 		if (tp->t_state & TS_ASLEEP) {
577 			tp->t_state &= ~TS_ASLEEP;
578 			wakeup((caddr_t)rbp);
579 		}
580 		selwakeup(&tp->t_wsel);
581 	}
582 out:
583 	splx(s);
584 }
585 
586 /* XXX called after changes made in underlying grf layer. */
587 /* I want to nuke this */
588 void
589 ite_reinit(dev)
590 	dev_t dev;
591 {
592 	struct ite_softc *ip;
593 	int unit = UNIT(dev);
594 
595 	/* XXX check whether when call from grf.c */
596 	if (unit < 0 || unit >= ite_cd.cd_ndevs ||
597 	    (ip = getitesp(unit)) == NULL)
598 		return;
599 
600 	ip->flags &= ~ITE_INITED;
601 	iteinit(dev);
602 }
603 
604 void
605 ite_reset(ip)
606     struct ite_softc *ip;
607 {
608 	int i;
609 
610 	ip->curx = 0;
611 	ip->cury = 0;
612 	ip->attribute = 0;
613 	ip->save_curx = 0;
614 	ip->save_cury = 0;
615 	ip->save_attribute = 0;
616 	ip->ap = ip->argbuf;
617 	ip->emul_level = EMUL_VT300_8;
618 	ip->eightbit_C1 = 0;
619 	ip->top_margin = 0;
620 	ip->bottom_margin = ip->rows - 1;
621 	ip->inside_margins = 0; /* origin mode == absolute */
622 	ip->linefeed_newline = 0;
623 	ip->auto_wrap = 1;
624 	ip->cursor_appmode = 0;
625 	ip->keypad_appmode = 0;
626 	ip->imode = 0;
627 	ip->key_repeat = 1;
628 	ip->G0 = CSET_ASCII;
629 	ip->G1 = CSET_JIS1983;
630 	ip->G2 = CSET_JISKANA;
631 	ip->G3 = CSET_JIS1990;
632 	ip->GL = &ip->G0;
633 	ip->GR = &ip->G1;
634 	ip->save_GL = 0;
635 	ip->save_char = 0;
636 	ip->fgcolor = 7;
637 	ip->bgcolor = 0;
638 	for (i = 0; i < ip->cols; i++)
639 		ip->tabs[i] = ((i & 7) == 0);
640 	/* XXX clear screen */
641 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
642 	attrclr(ip, 0, 0, ip->rows, ip->cols);
643 }
644 
645 /* Used in console at startup only */
646 int
647 ite_cnfilter(c)
648 	u_char c;
649 {
650 	static u_char mod = 0;
651 	struct key key;
652 	u_char code, up, mask;
653 	int s;
654 
655 	up = c & 0x80 ? 1 : 0;
656 	c &= 0x7f;
657 	code = 0;
658 
659 	s = spltty();
660 
661 	mask = 0;
662 	if (c >= KBD_LEFT_ALT && !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
663 		switch (c) {
664 		case KBD_LEFT_SHIFT:
665 			mask = KBD_MOD_SHIFT;
666 			break;
667 
668 		case KBD_LEFT_ALT:
669 			mask = KBD_MOD_LALT;
670 			break;
671 
672 		case KBD_RIGHT_ALT:
673 			mask = KBD_MOD_RALT;
674 			break;
675 
676 		case KBD_LEFT_META:
677 			mask = KBD_MOD_LMETA;
678 			break;
679 
680 		case KBD_RIGHT_META:
681 			mask = KBD_MOD_RMETA;
682 			break;
683 
684 		case KBD_CAPS_LOCK:
685 			/*
686 			 * capslock already behaves `right', don't need to
687 			 * keep track of the state in here.
688 			 */
689 			mask = KBD_MOD_CAPS;
690 			break;
691 
692 		case KBD_CTRL:
693 			mask = KBD_MOD_CTRL;
694 			break;
695 
696 		case KBD_RECONNECT:
697 			/* ite got 0xff */
698 			if (up)
699 				kbd_setLED();
700 			break;
701 		}
702 		if (mask & KBD_MOD_CAPS) {
703 			if (!up) {
704 				mod ^= KBD_MOD_CAPS;
705 				kbdled ^= LED_CAPS_LOCK;
706 				kbd_setLED();
707 			}
708 		} else if (up)
709 			mod &= ~mask;
710 		else mod |= mask;
711 		splx (s);
712 		return -1;
713 	}
714 
715 	if (up) {
716 		splx(s);
717 		return -1;
718 	}
719 
720 	/* translate modifiers */
721 	if (mod & KBD_MOD_SHIFT) {
722 		if (mod & KBD_MOD_ALT)
723 			key = kbdmap.alt_shift_keys[c];
724 		else
725 			key = kbdmap.shift_keys[c];
726 	} else if (mod & KBD_MOD_ALT)
727 		key = kbdmap.alt_keys[c];
728 	else {
729 		key = kbdmap.keys[c];
730 		/* if CAPS and key is CAPable (no pun intended) */
731 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
732 			key = kbdmap.shift_keys[c];
733 	}
734 	code = key.code;
735 
736 	/* if string return */
737 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
738 		splx(s);
739 		return -1;
740 	}
741 	/* handle dead keys */
742 	if (key.mode & KBD_MODE_DEAD) {
743 		splx(s);
744 		return -1;
745 	}
746 	if (mod & KBD_MOD_CTRL)
747 		code &= 0x1f;
748 	if (mod & KBD_MOD_META)
749 		code |= 0x80;
750 
751 	/* do console mapping. */
752 	code = code == '\r' ? '\n' : code;
753 
754 	splx(s);
755 	return (code);
756 }
757 
758 /* And now the old stuff. */
759 __inline static void
760 itesendch (ch)
761 	int ch;
762 {
763 	(*kbd_tty->t_linesw->l_rint)(ch, kbd_tty);
764 }
765 
766 
767 void
768 ite_filter(c)
769 	u_char c;
770 {
771 	static u_short mod = 0;
772 	register unsigned char code, *str;
773 	u_short up, mask;
774 	struct key key;
775 	int s, i;
776 
777 	if (!kbd_ite || !(kbd_tty = ite_tty[kbd_ite->device.dv_unit]))
778 		return;
779 
780 	/* have to make sure we're at spltty in here */
781 	s = spltty ();
782 
783 	up = c & 0x80 ? 1 : 0;
784 	c &= 0x7f;
785 	code = 0;
786 
787 	mask = 0;
788 	if (c >= KBD_LEFT_ALT &&
789 	    !(c >= 0x63 && c <= 0x6c)) {	/* 0x63: F1, 0x6c:F10 */
790 		switch (c) {
791 		case KBD_LEFT_SHIFT:
792 			mask = KBD_MOD_SHIFT;
793 			break;
794 
795 		case KBD_LEFT_ALT:
796 			mask = KBD_MOD_LALT;
797 			break;
798 
799 		case KBD_RIGHT_ALT:
800 			mask = KBD_MOD_RALT;
801 			break;
802 
803 		case KBD_LEFT_META:
804 			mask = KBD_MOD_LMETA;
805 			break;
806 
807 		case KBD_RIGHT_META:
808 			mask = KBD_MOD_RMETA;
809 			break;
810 
811 		case KBD_CAPS_LOCK:
812 			/*
813 			 * capslock already behaves `right', don't need to keep
814 			 * track of the state in here.
815 			 */
816 			mask = KBD_MOD_CAPS;
817 			break;
818 
819 		case KBD_CTRL:
820 			mask = KBD_MOD_CTRL;
821 			break;
822 
823 		case KBD_OPT1:
824 			mask = KBD_MOD_OPT1;
825 			break;
826 
827 		case KBD_OPT2:
828 			mask = KBD_MOD_OPT2;
829 			break;
830 
831 		case KBD_RECONNECT:
832 			if (up) { /* ite got 0xff */
833 				kbd_setLED();
834 			}
835 			break;
836 		}
837 
838 		if (mask & KBD_MOD_CAPS) {
839 			if (!up) {
840 				mod ^= KBD_MOD_CAPS;
841 				kbdled ^= LED_CAPS_LOCK;
842 				kbd_setLED();
843 			}
844 		} else if (up) {
845 			mod &= ~mask;
846 		} else mod |= mask;
847 
848 		/*
849 		 * return even if it wasn't a modifier key, the other
850 		 * codes up here are either special (like reset warning),
851 		 * or not yet defined
852 		 */
853 		splx (s);
854 		return;
855 	}
856 
857 	if (up) {
858 		splx (s);
859 		return;
860 	}
861 
862 	/*
863 	 * intercept LAlt-LMeta-F1 here to switch back to original ascii-keymap.
864 	 * this should probably be configurable..
865 	 */
866 	if (mod == (KBD_MOD_LALT|KBD_MOD_LMETA) && c == 0x63) {
867 		memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap));
868 		splx (s);
869 		return;
870 	}
871 
872 	/* translate modifiers */
873 	if (mod & KBD_MOD_SHIFT) {
874 		if (mod & KBD_MOD_ALT)
875 			key = kbdmap.alt_shift_keys[c];
876 		else
877 			key = kbdmap.shift_keys[c];
878 	} else if (mod & KBD_MOD_ALT)
879 		key = kbdmap.alt_keys[c];
880 	else {
881 		key = kbdmap.keys[c];
882 		/* if CAPS and key is CAPable (no pun intended) */
883 		if ((mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
884 			key = kbdmap.shift_keys[c];
885 		else if ((mod & KBD_MOD_OPT2) && (key.mode & KBD_MODE_KPAD))
886 			key = kbdmap.shift_keys[c];
887 	}
888 	code = key.code;
889 
890 	/* handle dead keys */
891 	if (key.mode & KBD_MODE_DEAD) {
892 		splx (s);
893 		return;
894 	}
895   	/* if not string, apply META and CTRL modifiers */
896 	if (! (key.mode & KBD_MODE_STRING)
897 	    && (!(key.mode & KBD_MODE_KPAD) ||
898 		(kbd_ite && !kbd_ite->keypad_appmode))) {
899 		if ((mod & KBD_MOD_CTRL) &&
900 		    (code == ' ' || (code >= '@' && code <= 'z')))
901 			code &= 0x1f;
902 		if (mod & KBD_MOD_META)
903 			code |= 0x80;
904 	} else if ((key.mode & KBD_MODE_KPAD) &&
905 	       (kbd_ite && kbd_ite->keypad_appmode)) {
906 		static char *in = "0123456789-+.\r()/*";
907 		static char *out = "pqrstuvwxymlnMPQRS";
908 		char *cp = index (in, code);
909 
910 		/*
911 		 * keypad-appmode sends SS3 followed by the above
912 		 * translated character
913 		 */
914 		(*kbd_tty->t_linesw->l_rint) (27, kbd_tty);
915 		(*kbd_tty->t_linesw->l_rint) ('O', kbd_tty);
916 		(*kbd_tty->t_linesw->l_rint) (out[cp - in], kbd_tty);
917 		splx(s);
918 		return;
919 	} else {
920 		/* *NO* I don't like this.... */
921 		static u_char app_cursor[] =
922 		{
923 		  3, 27, 'O', 'A',
924 		  3, 27, 'O', 'B',
925 		  3, 27, 'O', 'C',
926 		  3, 27, 'O', 'D'};
927 
928 		str = kbdmap.strings + code;
929 		/*
930 		 * if this is a cursor key, AND it has the default
931 		 * keymap setting, AND we're in app-cursor mode, switch
932 		 * to the above table. This is *nasty* !
933 		 */
934 		if (c >= 0x3b && c <= 0x3e && kbd_ite->cursor_appmode
935 		    && !memcmp(str, "\x03\x1b[", 3) &&
936 		    index("ABCD", str[3]))
937 			str = app_cursor + 4 * (str[3] - 'A');
938 
939 		/*
940 		 * using a length-byte instead of 0-termination allows
941 		 * to embed \0 into strings, although this is not used
942 		 * in the default keymap
943 		 */
944 		for (i = *str++; i; i--)
945 			(*kbd_tty->t_linesw->l_rint) (*str++, kbd_tty);
946 		splx(s);
947 		return;
948 	}
949 	(*kbd_tty->t_linesw->l_rint)(code, kbd_tty);
950 
951 	splx(s);
952 	return;
953 }
954 
955 /* helper functions, makes the code below more readable */
956 __inline static void
957 ite_sendstr (ip, str)
958 	struct ite_softc *ip;
959 	char *str;
960 {
961 	while (*str)
962 		itesendch (*str++);
963 }
964 
965 __inline static void
966 alignment_display(ip)
967 	struct ite_softc *ip;
968 {
969 	int i, j;
970 
971 	for (j = 0; j < ip->rows; j++)
972 		for (i = 0; i < ip->cols; i++)
973 			SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
974 	attrclr(ip, 0, 0, ip->rows, ip->cols);
975 }
976 
977 __inline static void
978 snap_cury(ip)
979 	struct ite_softc *ip;
980 {
981 	if (ip->inside_margins) {
982 		if (ip->cury < ip->top_margin)
983 			ip->cury = ip->top_margin;
984 		if (ip->cury > ip->bottom_margin)
985 			ip->cury = ip->bottom_margin;
986 	}
987 }
988 
989 __inline static void
990 ite_dnchar(ip, n)
991 	struct ite_softc *ip;
992 	int n;
993 {
994 	n = min(n, ip->cols - ip->curx);
995 	if (n < ip->cols - ip->curx) {
996 		SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
997 		attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
998 			1, ip->cols - ip->curx - n);
999 		attrclr(ip, ip->cury, ip->cols - n, 1, n);
1000 	}
1001 	while (n-- > 0)
1002 		SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1003 }
1004 
1005 static void
1006 ite_inchar(ip, n)
1007 	struct ite_softc *ip;
1008 	int n;
1009 {
1010 	int c = ip->save_char;
1011 	ip->save_char = 0;
1012 	n = min(n, ip->cols - ip->curx);
1013 	if (n < ip->cols - ip->curx) {
1014 		SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1015 		attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1016 			1, ip->cols - ip->curx - n);
1017 		attrclr(ip, ip->cury, ip->curx, 1, n);
1018 	}
1019 	while (n--)
1020 		SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1021 	ip->save_char = c;
1022 }
1023 
1024 __inline static void
1025 ite_clrtoeol(ip)
1026 	struct ite_softc *ip;
1027 {
1028 	int y = ip->cury, x = ip->curx;
1029 	if (ip->cols - x > 0) {
1030 		SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1031 		attrclr(ip, y, x, 1, ip->cols - x);
1032 	}
1033 }
1034 
1035 __inline static void
1036 ite_clrtobol(ip)
1037 	struct ite_softc *ip;
1038 {
1039 	int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1040 	SUBR_CLEAR(ip, y, 0, 1, x);
1041 	attrclr(ip, y, 0, 1, x);
1042 }
1043 
1044 __inline static void
1045 ite_clrline(ip)
1046 	struct ite_softc *ip;
1047 {
1048 	int y = ip->cury;
1049 	SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1050 	attrclr(ip, y, 0, 1, ip->cols);
1051 }
1052 
1053 __inline static void
1054 ite_clrtoeos(ip)
1055 	struct ite_softc *ip;
1056 {
1057 	ite_clrtoeol(ip);
1058 	if (ip->cury < ip->rows - 1) {
1059 		SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1060 		attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1061 	}
1062 }
1063 
1064 __inline static void
1065 ite_clrtobos(ip)
1066 	struct ite_softc *ip;
1067 {
1068 	ite_clrtobol(ip);
1069 	if (ip->cury > 0) {
1070 		SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1071 		attrclr(ip, 0, 0, ip->cury, ip->cols);
1072 	}
1073 }
1074 
1075 __inline static void
1076 ite_clrscreen(ip)
1077 	struct ite_softc *ip;
1078 {
1079 	SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1080 	attrclr(ip, 0, 0, ip->rows, ip->cols);
1081 }
1082 
1083 
1084 
1085 __inline static void
1086 ite_dnline(ip, n)
1087 	struct ite_softc *ip;
1088 	int n;
1089 {
1090 	/*
1091 	 * interesting.. if the cursor is outside the scrolling
1092 	 * region, this command is simply ignored..
1093 	 */
1094 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1095 		return;
1096 
1097 	n = min(n, ip->bottom_margin + 1 - ip->cury);
1098 	if (n <= ip->bottom_margin - ip->cury) {
1099 		SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1100 		attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1101 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1102 	}
1103 	SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1104 	attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1105 }
1106 
1107 __inline static void
1108 ite_inline(ip, n)
1109 	struct ite_softc *ip;
1110 	int n;
1111 {
1112 	/*
1113 	 * interesting.. if the cursor is outside the scrolling
1114 	 * region, this command is simply ignored..
1115 	 */
1116 	if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1117 		return;
1118 
1119 	if (n <= 0)
1120 		n = 1;
1121 	else n = min(n, ip->bottom_margin + 1 - ip->cury);
1122 	if (n <= ip->bottom_margin  - ip->cury) {
1123 		SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1124 		attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1125 			ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1126 	}
1127 	SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1128 	attrclr(ip, ip->cury, 0, n, ip->cols);
1129 	ip->curx = 0;
1130 }
1131 
1132 __inline static void
1133 ite_index (ip)
1134 	struct ite_softc *ip;
1135 {
1136 	++ip->cury;
1137 	if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) {
1138 		ip->cury--;
1139 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1140 		ite_clrline(ip);
1141 	}
1142 	/*clr_attr(ip, ATTR_INV);*/
1143 }
1144 
1145 __inline static void
1146 ite_lf (ip)
1147 	struct ite_softc *ip;
1148 {
1149 	++ip->cury;
1150 	if (ip->cury > ip->bottom_margin) {
1151 		ip->cury--;
1152 		SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1153 		ite_clrline(ip);
1154 	}
1155 /*	SUBR_CURSOR(ip, MOVE_CURSOR);*/
1156 	/*clr_attr(ip, ATTR_INV);*/
1157 	/* reset character set ... thanks for mohta. */
1158 	ip->G0 = CSET_ASCII;
1159 	ip->G1 = CSET_JIS1983;
1160 	ip->G2 = CSET_JISKANA;
1161 	ip->G3 = CSET_JIS1990;
1162 	ip->GL = &ip->G0;
1163 	ip->GR = &ip->G1;
1164 	ip->save_GL = 0;
1165 	ip->save_char = 0;
1166 }
1167 
1168 __inline static void
1169 ite_crlf (ip)
1170 	struct ite_softc *ip;
1171 {
1172 	ip->curx = 0;
1173 	ite_lf (ip);
1174 }
1175 
1176 __inline static void
1177 ite_cr (ip)
1178 	struct ite_softc *ip;
1179 {
1180 	if (ip->curx) {
1181 		ip->curx = 0;
1182 	}
1183 }
1184 
1185 __inline static void
1186 ite_rlf (ip)
1187 	struct ite_softc *ip;
1188 {
1189 	ip->cury--;
1190 	if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) {
1191 		ip->cury++;
1192 		SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1193 		ite_clrline(ip);
1194 	}
1195 	clr_attr(ip, ATTR_INV);
1196 }
1197 
1198 __inline static int
1199 atoi (cp)
1200     const char *cp;
1201 {
1202 	int n;
1203 
1204 	for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1205 		n = n * 10 + *cp - '0';
1206 	return n;
1207 }
1208 
1209 __inline static char *
1210 index(cp, ch)
1211 	const char *cp;
1212 	char ch;
1213 {
1214 	while (*cp && *cp != ch)
1215 		cp++;
1216 	return *cp ? (char *) cp : 0;
1217 }
1218 
1219 __inline static int
1220 ite_argnum (ip)
1221 	struct ite_softc *ip;
1222 {
1223 	char ch;
1224 	int n;
1225 
1226 	/* convert argument string into number */
1227 	if (ip->ap == ip->argbuf)
1228 		return 1;
1229 	ch = *ip->ap;
1230 	*ip->ap = 0;
1231 	n = atoi (ip->argbuf);
1232 	*ip->ap = ch;
1233 
1234 	return n;
1235 }
1236 
1237 __inline static int
1238 ite_zargnum (ip)
1239 	struct ite_softc *ip;
1240 {
1241 	char ch;
1242 	int n;
1243 
1244 	/* convert argument string into number */
1245 	if (ip->ap == ip->argbuf)
1246 		return 0;
1247 	ch = *ip->ap;
1248 	*ip->ap = 0;	/* terminate string */
1249 	n = atoi (ip->argbuf);
1250 	*ip->ap = ch;
1251 
1252 	return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1253 }
1254 
1255 void
1256 ite_putstr(s, len, dev)
1257 	const u_char *s;
1258 	int len;
1259 	dev_t dev;
1260 {
1261 	struct ite_softc *ip;
1262 	int i;
1263 
1264 	ip = getitesp(dev);
1265 
1266 	/* XXX avoid problems */
1267 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1268 	  	return;
1269 
1270 	SUBR_CURSOR(ip, START_CURSOROPT);
1271 	for (i = 0; i < len; i++)
1272 		if (s[i])
1273 			iteputchar(s[i], ip);
1274 	SUBR_CURSOR(ip, END_CURSOROPT);
1275 }
1276 
1277 void
1278 iteputchar(c, ip)
1279 	register int c;
1280 	struct ite_softc *ip;
1281 {
1282 	int n, x, y;
1283 	char *cp;
1284 
1285 	if (c >= 0x20 && ip->escape) {
1286 		switch (ip->escape) {
1287 
1288 		case ESC:
1289 			switch (c) {
1290 				/* first 7bit equivalents for the 8bit control characters */
1291 
1292 			case 'D':
1293 				c = IND;
1294 				ip->escape = 0;
1295 				break; /* and fall into the next switch below (same for all `break') */
1296 
1297 			case 'E':
1298 				/* next line */
1299 				c = NEL;
1300 				ip->escape = 0;
1301 				break;
1302 
1303 			case 'H':
1304 				/* set TAB at current col */
1305 				c = HTS;
1306 				ip->escape = 0;
1307 				break;
1308 
1309 			case 'M':
1310 				/* reverse index */
1311 				c = RI;
1312 				ip->escape = 0;
1313 				break;
1314 
1315 			case 'N':
1316 				/* single shift G2 */
1317 				c = SS2;
1318 				ip->escape = 0;
1319 				break;
1320 
1321 			case 'O':
1322 				/* single shift G3 */
1323 				c = SS3;
1324 				ip->escape = 0;
1325 				break;
1326 
1327 			case 'P':
1328 				/* DCS detected */
1329 				c = DCS;
1330 				ip->escape = 0;
1331 				break;
1332 
1333 			case '[':
1334 				c = CSI;
1335 				ip->escape = 0;
1336 				break;
1337 
1338 			case '\\':
1339 				/* String Terminator */
1340 				c = ST;
1341 				ip->escape = 0;
1342 				break;
1343 
1344 			case ']':
1345 				c = OSC;
1346 				ip->escape = 0;
1347 				break;
1348 
1349 			case '^':
1350 				c = PM;
1351 				ip->escape = 0;
1352 				break;
1353 
1354 			case '_':
1355 				c = APC;
1356 				ip->escape = 0;
1357 				break;
1358 
1359 
1360 			/* introduces 7/8bit control */
1361 			case ' ':
1362 				/* can be followed by either F or G */
1363 				ip->escape = ' ';
1364 				break;
1365 
1366 
1367 			/* a lot of character set selections, not yet used...
1368 			   94-character sets: */
1369 			case '(':	/* G0 */
1370 			case ')':	/* G1 */
1371 				ip->escape = c;
1372 				return;
1373 
1374 			case '*':	/* G2 */
1375 			case '+':	/* G3 */
1376 			case 'B':	/* ASCII */
1377 			case 'A':	/* ISO latin 1 */
1378 			case '<':	/* user preferred suplemental */
1379 			case '0':	/* dec special graphics */
1380 
1381 			/* 96-character sets: */
1382 			case '-':	/* G1 */
1383 			case '.':	/* G2 */
1384 			case '/':	/* G3 */
1385 
1386 			/* national character sets: */
1387 			case '4':	/* dutch */
1388 			case '5':
1389 			case 'C':	/* finnish */
1390 			case 'R':	/* french */
1391 			case 'Q':	/* french canadian */
1392 			case 'K':	/* german */
1393 			case 'Y':	/* italian */
1394 			case '6':	/* norwegian/danish */
1395 			/* note: %5 and %6 are not supported (two chars..) */
1396 
1397 				ip->escape = 0;
1398 				/* just ignore for now */
1399 				return;
1400 
1401 			/* 94-multibyte character sets designate */
1402 			case '$':
1403 				ip->escape = '$';
1404 				return;
1405 
1406 			/* locking shift modes */
1407 			case '`':
1408 				ip->GR = &ip->G1;
1409 				ip->escape = 0;
1410 				return;
1411 
1412 			case 'n':
1413 				ip->GL = &ip->G2;
1414 				ip->escape = 0;
1415 				return;
1416 
1417 			case '}':
1418 				ip->GR = &ip->G2;
1419 				ip->escape = 0;
1420 				return;
1421 
1422 			case 'o':
1423 				ip->GL = &ip->G3;
1424 				ip->escape = 0;
1425 				return;
1426 
1427 			case '|':
1428 				ip->GR = &ip->G3;
1429 				ip->escape = 0;
1430 				return;
1431 
1432 			case '~':
1433 				ip->GR = &ip->G1;
1434 				ip->escape = 0;
1435 				return;
1436 
1437 			/* font width/height control */
1438 			case '#':
1439 				ip->escape = '#';
1440 				return;
1441 
1442 			case 'c':
1443 				/* hard terminal reset .. */
1444 				ite_reset (ip);
1445 				SUBR_CURSOR(ip, MOVE_CURSOR);
1446 				ip->escape = 0;
1447 				return;
1448 
1449 
1450 			case '7':
1451 				/* save cursor */
1452 				ip->save_curx = ip->curx;
1453 				ip->save_cury = ip->cury;
1454 				ip->save_attribute = ip->attribute;
1455 				ip->sc_om = ip->inside_margins;
1456 				ip->sc_G0 = ip->G0;
1457 				ip->sc_G1 = ip->G1;
1458 				ip->sc_G2 = ip->G2;
1459 				ip->sc_G3 = ip->G3;
1460 				ip->sc_GL = ip->GL;
1461 				ip->sc_GR = ip->GR;
1462 				ip->escape = 0;
1463 				return;
1464 
1465 			case '8':
1466 				/* restore cursor */
1467 				ip->curx = ip->save_curx;
1468 				ip->cury = ip->save_cury;
1469 				ip->attribute = ip->save_attribute;
1470 				ip->inside_margins = ip->sc_om;
1471 				ip->G0 = ip->sc_G0;
1472 				ip->G1 = ip->sc_G1;
1473 				ip->G2 = ip->sc_G2;
1474 				ip->G3 = ip->sc_G3;
1475 				ip->GL = ip->sc_GL;
1476 				ip->GR = ip->sc_GR;
1477 				SUBR_CURSOR(ip, MOVE_CURSOR);
1478 				ip->escape = 0;
1479 				return;
1480 
1481 			case '=':
1482 				/* keypad application mode */
1483 				ip->keypad_appmode = 1;
1484 				ip->escape = 0;
1485 				return;
1486 
1487 			case '>':
1488 				/* keypad numeric mode */
1489 				ip->keypad_appmode = 0;
1490 				ip->escape = 0;
1491 				return;
1492 
1493 			case 'Z':	/* request ID */
1494 				if (ip->emul_level == EMUL_VT100)
1495 					ite_sendstr (ip, "\033[61;0c"); /* XXX not clean */
1496 				else
1497 					ite_sendstr (ip, "\033[63;0c"); /* XXX not clean */
1498 				ip->escape = 0;
1499 				return;
1500 
1501 			/* default catch all for not recognized ESC sequences */
1502 			default:
1503 				ip->escape = 0;
1504 				return;
1505 			}
1506 			break;
1507 
1508 
1509 		case '(': /* designate G0 */
1510 			switch (c) {
1511 			case 'B': /* USASCII */
1512 				ip->G0 = CSET_ASCII;
1513 				ip->escape = 0;
1514 				return;
1515 			case 'I':
1516 				ip->G0 = CSET_JISKANA;
1517 				ip->escape = 0;
1518 				return;
1519 			case 'J':
1520 				ip->G0 = CSET_JISROMA;
1521 				ip->escape = 0;
1522 				return;
1523 			case 'A': /* British or ISO-Latin-1 */
1524 			case 'H': /* Swedish */
1525 			case 'K': /* German */
1526 			case 'R': /* French */
1527 			case 'Y': /* Italian */
1528 			case 'Z': /* Spanish */
1529 			default:
1530 				/* not supported */
1531 				ip->escape = 0;
1532 				return;
1533 			}
1534 
1535 		case ')': /* designate G1 */
1536 			ip->escape = 0;
1537 			return;
1538 
1539 		case '$': /* 94-multibyte character set */
1540 			switch (c) {
1541 			case '@':
1542 				ip->G0 = CSET_JIS1978;
1543 				ip->escape = 0;
1544 				return;
1545 			case 'B':
1546 				ip->G0 = CSET_JIS1983;
1547 				ip->escape = 0;
1548 				return;
1549 			case 'D':
1550 				ip->G0 = CSET_JIS1990;
1551 				ip->escape = 0;
1552 				return;
1553 			default:
1554 				/* not supported */
1555 				ip->escape = 0;
1556 				return;
1557 			}
1558 
1559 		case ' ':
1560 			switch (c) {
1561 			case 'F':
1562 				ip->eightbit_C1 = 0;
1563 				ip->escape = 0;
1564 				return;
1565 
1566 			case 'G':
1567 				ip->eightbit_C1 = 1;
1568 				ip->escape = 0;
1569 				return;
1570 
1571 			default:
1572 				/* not supported */
1573 				ip->escape = 0;
1574 				return;
1575 			}
1576 			break;
1577 
1578 		case '#':
1579 			switch (c) {
1580 			case '5':
1581 				/* single height, single width */
1582 				ip->escape = 0;
1583 				return;
1584 
1585 			case '6':
1586 				/* double width, single height */
1587 				ip->escape = 0;
1588 				return;
1589 
1590 			case '3':
1591 				/* top half */
1592 				ip->escape = 0;
1593 				return;
1594 
1595 			case '4':
1596 				/* bottom half */
1597 				ip->escape = 0;
1598 				return;
1599 
1600 			case '8':
1601 				/* screen alignment pattern... */
1602 				alignment_display (ip);
1603 				ip->escape = 0;
1604 				return;
1605 
1606 			default:
1607 				ip->escape = 0;
1608 				return;
1609 			}
1610 			break;
1611 
1612 
1613 
1614 		case CSI:
1615 			/* the biggie... */
1616 			switch (c) {
1617 			case '0': case '1': case '2': case '3': case '4':
1618 			case '5': case '6': case '7': case '8': case '9':
1619 			case ';': case '\"': case '$': case '>':
1620 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1621 					*ip->ap++ = c;
1622 				return;
1623 
1624 			case 'p':
1625 				*ip->ap = 0;
1626 				if (!strncmp(ip->argbuf, "61\"", 3))
1627 					ip->emul_level = EMUL_VT100;
1628 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1629 					 || !strncmp(ip->argbuf, "62;1\"", 5))
1630 					ip->emul_level = EMUL_VT300_7;
1631 				else
1632 					ip->emul_level = EMUL_VT300_8;
1633 				ip->escape = 0;
1634 				return;
1635 
1636 
1637 			case '?':
1638 				*ip->ap = 0;
1639 				ip->escape = '?';
1640 				ip->ap = ip->argbuf;
1641 				return;
1642 
1643 
1644 			case 'c':
1645 				/* device attributes */
1646 				*ip->ap = 0;
1647 				if (ip->argbuf[0] == '>') {
1648 					ite_sendstr (ip, "\033[>24;0;0;0c");
1649 				} else
1650 					switch (ite_zargnum(ip)) {
1651 					case 0:
1652 						/* primary DA request, send primary DA response */
1653 						if (ip->emul_level == EMUL_VT100)
1654 							ite_sendstr (ip, "\033[?1;1c");
1655 						else
1656 							ite_sendstr (ip, "\033[63;0c");
1657 						break;
1658 					}
1659 				ip->escape = 0;
1660 				return;
1661 
1662 			case 'n':
1663 				switch (ite_zargnum(ip)) {
1664 				case 5:
1665 					ite_sendstr (ip, "\033[0n");	/* no malfunction */
1666 					break;
1667 				case 6:
1668 					/* cursor position report */
1669 					sprintf (ip->argbuf, "\033[%d;%dR",
1670 						 ip->cury + 1, ip->curx + 1);
1671 					ite_sendstr (ip, ip->argbuf);
1672 					break;
1673 				}
1674 				ip->escape = 0;
1675 				return;
1676 
1677 
1678 			case 'x':
1679 				switch (ite_zargnum(ip)) {
1680 				case 0:
1681 					/* Fake some terminal parameters.  */
1682 					ite_sendstr (ip, "\033[2;1;1;112;112;1;0x");
1683 					break;
1684 				case 1:
1685 					ite_sendstr (ip, "\033[3;1;1;112;112;1;0x");
1686 					break;
1687 				}
1688 				ip->escape = 0;
1689 				return;
1690 
1691 
1692 			case 'g':
1693 				/* clear tabs */
1694 				switch (ite_zargnum(ip)) {
1695 				case 0:
1696 					if (ip->curx < ip->cols)
1697 						ip->tabs[ip->curx] = 0;
1698 					break;
1699 				case 3:
1700 					for (n = 0; n < ip->cols; n++)
1701 						ip->tabs[n] = 0;
1702 					break;
1703 
1704 				default:
1705 					/* ignore */
1706 					break;
1707 				}
1708 				ip->escape = 0;
1709 				return;
1710 
1711 
1712 			case 'h': /* set mode */
1713 			case 'l': /* reset mode */
1714 				n = ite_zargnum (ip);
1715 				switch (n) {
1716 				case 4:
1717 					ip->imode = (c == 'h');	/* insert/replace mode */
1718 					break;
1719 				case 20:
1720 					ip->linefeed_newline = (c == 'h');
1721 					break;
1722 				}
1723 				ip->escape = 0;
1724 				return;
1725 
1726 
1727 			case 'M':
1728 				/* delete line */
1729 				ite_dnline (ip, ite_argnum (ip));
1730 				ip->escape = 0;
1731 				return;
1732 
1733 
1734 			case 'L':
1735 				/* insert line */
1736 				ite_inline (ip, ite_argnum (ip));
1737 				ip->escape = 0;
1738 				return;
1739 
1740 
1741 			case 'P':
1742 				/* delete char */
1743 				ite_dnchar (ip, ite_argnum (ip));
1744 				ip->escape = 0;
1745 				return;
1746 
1747 
1748 			case '@':
1749 				/* insert char(s) */
1750 				ite_inchar (ip, ite_argnum (ip));
1751 				ip->escape = 0;
1752 				return;
1753 
1754 			case '!':
1755 				/* soft terminal reset */
1756 				ip->escape = 0; /* XXX */
1757 				return;
1758 
1759 			case 'G':
1760 				/* this one was *not* in my vt320 manual but in
1761 				   a vt320 termcap entry.. who is right?
1762 				   It's supposed to set the horizontal cursor position. */
1763 				*ip->ap = 0;
1764 				x = atoi (ip->argbuf);
1765 				if (x) x--;
1766 				ip->curx = min(x, ip->cols - 1);
1767 				ip->escape = 0;
1768 				SUBR_CURSOR(ip, MOVE_CURSOR);
1769 				clr_attr (ip, ATTR_INV);
1770 				return;
1771 
1772 
1773 			case 'd':
1774 				/* same thing here, this one's for setting the absolute
1775 				   vertical cursor position. Not documented... */
1776 				*ip->ap = 0;
1777 				y = atoi (ip->argbuf);
1778 				if (y) y--;
1779 				if (ip->inside_margins)
1780 					y += ip->top_margin;
1781 				ip->cury = min(y, ip->rows - 1);
1782 				ip->escape = 0;
1783 				snap_cury(ip);
1784 				SUBR_CURSOR(ip, MOVE_CURSOR);
1785 				clr_attr (ip, ATTR_INV);
1786 				return;
1787 
1788 
1789 			case 'H':
1790 			case 'f':
1791 				*ip->ap = 0;
1792 				y = atoi (ip->argbuf);
1793 				x = 0;
1794 				cp = index (ip->argbuf, ';');
1795 				if (cp)
1796 					x = atoi (cp + 1);
1797 				if (x) x--;
1798 				if (y) y--;
1799 				if (ip->inside_margins)
1800 					y += ip->top_margin;
1801 				ip->cury = min(y, ip->rows - 1);
1802 				ip->curx = min(x, ip->cols - 1);
1803 				ip->escape = 0;
1804 				snap_cury(ip);
1805 				SUBR_CURSOR(ip, MOVE_CURSOR);
1806 				/*clr_attr (ip, ATTR_INV);*/
1807 				return;
1808 
1809 			case 'A':
1810 				/* cursor up */
1811 				n = ite_argnum (ip);
1812 				n = ip->cury - (n ? n : 1);
1813 				if (n < 0) n = 0;
1814 				if (ip->inside_margins)
1815 					n = max(ip->top_margin, n);
1816 				else if (n == ip->top_margin - 1)
1817 					/* allow scrolling outside region, but don't scroll out
1818 					   of active region without explicit CUP */
1819 					n = ip->top_margin;
1820 				ip->cury = n;
1821 				ip->escape = 0;
1822 				SUBR_CURSOR(ip, MOVE_CURSOR);
1823 				clr_attr (ip, ATTR_INV);
1824 				return;
1825 
1826 			case 'B':
1827 				/* cursor down */
1828 				n = ite_argnum (ip);
1829 				n = ip->cury + (n ? n : 1);
1830 				n = min(ip->rows - 1, n);
1831 #if 0
1832 				if (ip->inside_margins)
1833 #endif
1834 					n = min(ip->bottom_margin, n);
1835 #if 0
1836 				else if (n == ip->bottom_margin + 1)
1837 					/* allow scrolling outside region, but don't scroll out
1838 					   of active region without explicit CUP */
1839 					n = ip->bottom_margin;
1840 #endif
1841 				ip->cury = n;
1842 				ip->escape = 0;
1843 				SUBR_CURSOR(ip, MOVE_CURSOR);
1844 				clr_attr (ip, ATTR_INV);
1845 				return;
1846 
1847 			case 'C':
1848 				/* cursor forward */
1849 				n = ite_argnum (ip);
1850 				n = n ? n : 1;
1851 				ip->curx = min(ip->curx + n, ip->cols - 1);
1852 				ip->escape = 0;
1853 				SUBR_CURSOR(ip, MOVE_CURSOR);
1854 				clr_attr (ip, ATTR_INV);
1855 				return;
1856 
1857 			case 'D':
1858 				/* cursor backward */
1859 				n = ite_argnum (ip);
1860 				n = n ? n : 1;
1861 				n = ip->curx - n;
1862 				ip->curx = n >= 0 ? n : 0;
1863 				ip->escape = 0;
1864 				SUBR_CURSOR(ip, MOVE_CURSOR);
1865 				clr_attr (ip, ATTR_INV);
1866 				return;
1867 
1868 
1869 			case 'J':
1870 				/* erase screen */
1871 				*ip->ap = 0;
1872 				n = ite_zargnum (ip);
1873 				if (n == 0)
1874 					ite_clrtoeos(ip);
1875 				else if (n == 1)
1876 					ite_clrtobos(ip);
1877 				else if (n == 2)
1878 					ite_clrscreen(ip);
1879 				ip->escape = 0;
1880 				return;
1881 
1882 
1883 			case 'K':
1884 				/* erase line */
1885 				n = ite_zargnum (ip);
1886 				if (n == 0)
1887 					ite_clrtoeol(ip);
1888 				else if (n == 1)
1889 					ite_clrtobol(ip);
1890 				else if (n == 2)
1891 					ite_clrline(ip);
1892 				ip->escape = 0;
1893 				return;
1894 
1895 			case 'S':
1896 				/* scroll up */
1897 				n = ite_zargnum (ip);
1898 				if (n <= 0)
1899 					n = 1;
1900 				else if (n > ip->rows-1)
1901 					n = ip->rows-1;
1902 				SUBR_SCROLL(ip, ip->rows-1, 0, n, SCROLL_UP);
1903 				ip->escape = 0;
1904 				return;
1905 
1906 			case 'T':
1907 				/* scroll down */
1908 				n = ite_zargnum (ip);
1909 				if (n <= 0)
1910 					n = 1;
1911 				else if (n > ip->rows-1)
1912 					n = ip->rows-1;
1913 				SUBR_SCROLL(ip, 0, 0, n, SCROLL_DOWN);
1914 				ip->escape = 0;
1915 				return;
1916 
1917 			case 'X':
1918 				/* erase character */
1919 				n = ite_argnum(ip) - 1;
1920 				n = min(n, ip->cols - 1 - ip->curx);
1921 				for (; n >= 0; n--) {
1922 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1923 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1924 				}
1925 				ip->escape = 0;
1926 				return;
1927 
1928 
1929 			case '}': case '`':
1930 				/* status line control */
1931 				ip->escape = 0;
1932 				return;
1933 
1934 			case 'r':
1935 				/* set scrolling region */
1936 				ip->escape = 0;
1937 				*ip->ap = 0;
1938 				x = atoi (ip->argbuf);
1939 				x = x ? x : 1;
1940 				y = ip->rows;
1941 				cp = index (ip->argbuf, ';');
1942 				if (cp) {
1943 					y = atoi (cp + 1);
1944 					y = y ? y : ip->rows;
1945 				}
1946 				if (y <= x)
1947 					return;
1948 				x--;
1949 				y--;
1950 				ip->top_margin = min(x, ip->rows - 2);
1951 				ip->bottom_margin = min(y, ip->rows - 1);
1952 				if (ip->inside_margins) {
1953 					ip->cury = ip->top_margin;
1954 				} else
1955 					ip->cury = 0;
1956 				ip->curx = 0;
1957 				return;
1958 
1959 
1960 			case 'm':
1961 				/* big attribute setter/resetter */
1962 			{
1963 				char *cp;
1964 				*ip->ap = 0;
1965 				/* kludge to make CSIm work (== CSI0m) */
1966 				if (ip->ap == ip->argbuf)
1967 					ip->ap++;
1968 				for (cp = ip->argbuf; cp < ip->ap; ) {
1969 					switch (*cp) {
1970 					case 0:
1971 					case '0':
1972 						clr_attr (ip, ATTR_ALL);
1973 						ip->fgcolor = 7;
1974 						ip->bgcolor = 0;
1975 						cp++;
1976 						break;
1977 
1978 					case '1':
1979 						set_attr (ip, ATTR_BOLD);
1980 						cp++;
1981 						break;
1982 
1983 					case '2':
1984 						switch (cp[1]) {
1985 						case '2':
1986 							clr_attr (ip, ATTR_BOLD);
1987 							cp += 2;
1988 							break;
1989 
1990 						case '4':
1991 							clr_attr (ip, ATTR_UL);
1992 							cp += 2;
1993 							break;
1994 
1995 						case '5':
1996 							clr_attr (ip, ATTR_BLINK);
1997 							cp += 2;
1998 							break;
1999 
2000 						case '7':
2001 							clr_attr (ip, ATTR_INV);
2002 							cp += 2;
2003 							break;
2004 
2005 						default:
2006 							cp++;
2007 							break;
2008 						}
2009 						break;
2010 
2011 					case '3':
2012 						switch (cp[1]) {
2013 						case '0': case '1': case '2': case '3':
2014 						case '4': case '5': case '6': case '7':
2015 							/* foreground colors */
2016 							ip->fgcolor = cp[1] - '0';
2017 							cp += 2;
2018 							break;
2019 						default:
2020 							cp++;
2021 							break;
2022 						}
2023 						break;
2024 
2025 					case '4':
2026 						switch (cp[1]) {
2027 						case '0': case '1': case '2': case '3':
2028 						case '4': case '5': case '6': case '7':
2029 							/* background colors */
2030 							ip->bgcolor = cp[1] - '0';
2031 							cp += 2;
2032 							break;
2033 						default:
2034 							set_attr (ip, ATTR_UL);
2035 							cp++;
2036 							break;
2037 						}
2038 						break;
2039 
2040 					case '5':
2041 						set_attr (ip, ATTR_BLINK);
2042 						cp++;
2043 						break;
2044 
2045 					case '7':
2046 						set_attr (ip, ATTR_INV);
2047 						cp++;
2048 						break;
2049 
2050 					default:
2051 						cp++;
2052 						break;
2053 					}
2054 				}
2055 
2056 			}
2057 				ip->escape = 0;
2058 				return;
2059 
2060 
2061 			case 'u':
2062 				/* DECRQTSR */
2063 				ite_sendstr (ip, "\033P\033\\");
2064 				ip->escape = 0;
2065 				return;
2066 
2067 			default:
2068 				ip->escape = 0;
2069 				return;
2070 			}
2071 			break;
2072 
2073 
2074 
2075 		case '?':	/* CSI ? */
2076 			switch (c) {
2077 			case '0': case '1': case '2': case '3': case '4':
2078 			case '5': case '6': case '7': case '8': case '9':
2079 			case ';': case '\"': case '$':
2080 				/* Don't fill the last character; it's needed.  */
2081 				/* XXX yeah, where ?? */
2082 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2083 					*ip->ap++ = c;
2084 				return;
2085 
2086 
2087 			case 'n':
2088 				/* Terminal Reports */
2089 				*ip->ap = 0;
2090 				if (ip->ap == &ip->argbuf[2]) {
2091 					if (!strncmp(ip->argbuf, "15", 2))
2092 						/* printer status: no printer */
2093 						ite_sendstr (ip, "\033[13n");
2094 
2095 					else if (!strncmp(ip->argbuf, "25", 2))
2096 						/* udk status */
2097 						ite_sendstr (ip, "\033[20n");
2098 
2099 					else if (!strncmp(ip->argbuf, "26", 2))
2100 						/* keyboard dialect: US */
2101 						ite_sendstr (ip, "\033[27;1n");
2102 				}
2103 				ip->escape = 0;
2104 				return;
2105 
2106 
2107 			case 'h': /* set dec private modes */
2108 			case 'l': /* reset dec private modes */
2109 				n = ite_zargnum (ip);
2110 				switch (n) {
2111 				case 1:
2112 					/* CKM - cursor key mode */
2113 					ip->cursor_appmode = (c == 'h');
2114 					break;
2115 
2116 				case 3:
2117 					/* 132/80 columns (132 == 'h') */
2118 					break;
2119 
2120 				case 4: /* smooth scroll */
2121 					break;
2122 
2123 				case 5:
2124 					/* light background (=='h') /dark background(=='l') */
2125 					break;
2126 
2127 				case 6: /* origin mode */
2128 					ip->inside_margins = (c == 'h');
2129 #if 0
2130 					ip->curx = 0;
2131 					ip->cury = ip->inside_margins ? ip->top_margin : 0;
2132 					SUBR_CURSOR(ip, MOVE_CURSOR);
2133 #endif
2134 					break;
2135 
2136 				case 7: /* auto wraparound */
2137 					ip->auto_wrap = (c == 'h');
2138 					break;
2139 
2140 				case 8: /* keyboard repeat */
2141 					ip->key_repeat = (c == 'h');
2142 					break;
2143 
2144 				case 20: /* newline mode */
2145 					ip->linefeed_newline = (c == 'h');
2146 					break;
2147 
2148 				case 25: /* cursor on/off */
2149 					SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR);
2150 					break;
2151 				}
2152 				ip->escape = 0;
2153 				return;
2154 
2155 			case 'K':
2156 				/* selective erase in line */
2157 			case 'J':
2158 				/* selective erase in display */
2159 
2160 			default:
2161 				ip->escape = 0;
2162 				return;
2163 			}
2164 			break;
2165 
2166 
2167 		default:
2168 			ip->escape = 0;
2169 			return;
2170 		}
2171 	}
2172 
2173 	switch (c) {
2174 	case 0x00:	/* NUL */
2175 	case 0x01:	/* SOH */
2176 	case 0x02:	/* STX */
2177 	case 0x03:	/* ETX */
2178 	case 0x04:	/* EOT */
2179 	case 0x05:	/* ENQ */
2180 	case 0x06:	/* ACK */
2181 		break;
2182 
2183 	case BEL:
2184 #if NBELL > 0
2185 		if (kbd_ite && ite_tty[kbd_ite->device.dv_unit])
2186 			opm_bell();
2187 #endif
2188 		break;
2189 
2190 	case BS:
2191 		if (--ip->curx < 0)
2192 			ip->curx = 0;
2193 		else
2194 			SUBR_CURSOR(ip, MOVE_CURSOR);
2195 		break;
2196 
2197 	case HT:
2198 		for (n = ip->curx + 1; n < ip->cols; n++) {
2199 			if (ip->tabs[n]) {
2200 				ip->curx = n;
2201 				SUBR_CURSOR(ip, MOVE_CURSOR);
2202 				break;
2203 			}
2204 		}
2205 		break;
2206 
2207 	case VT:	/* VT is treated like LF */
2208 	case FF:	/* so is FF */
2209 	case LF:
2210 		/* cr->crlf distinction is done here, on output,
2211 		   not on input! */
2212 		if (ip->linefeed_newline)
2213 			ite_crlf (ip);
2214 		else
2215 			ite_lf (ip);
2216 		break;
2217 
2218 	case CR:
2219 		ite_cr (ip);
2220 		break;
2221 
2222 
2223 	case SO:
2224 		ip->GL = &ip->G1;
2225 		break;
2226 
2227 	case SI:
2228 		ip->GL = &ip->G0;
2229 		break;
2230 
2231 	case 0x10:	/* DLE */
2232 	case 0x11:	/* DC1/XON */
2233 	case 0x12:	/* DC2 */
2234 	case 0x13:	/* DC3/XOFF */
2235 	case 0x14:	/* DC4 */
2236 	case 0x15:	/* NAK */
2237 	case 0x16:	/* SYN */
2238 	case 0x17:	/* ETB */
2239 		break;
2240 
2241 	case CAN:
2242 		ip->escape = 0;	/* cancel any escape sequence in progress */
2243 		break;
2244 
2245 	case 0x19:	/* EM */
2246 		break;
2247 
2248 	case SUB:
2249 		ip->escape = 0;	/* dito, but see below */
2250 		/* should also display a reverse question mark!! */
2251 		break;
2252 
2253 	case ESC:
2254 		ip->escape = ESC;
2255 		break;
2256 
2257 	case 0x1c:	/* FS */
2258 	case 0x1d:	/* GS */
2259 	case 0x1e:	/* RS */
2260 	case 0x1f:	/* US */
2261 		break;
2262 
2263 	/* now it gets weird.. 8bit control sequences.. */
2264 	case IND:	/* index: move cursor down, scroll */
2265 		ite_index (ip);
2266 		break;
2267 
2268 	case NEL:	/* next line. next line, first pos. */
2269 		ite_crlf (ip);
2270 		break;
2271 
2272 	case HTS:	/* set horizontal tab */
2273 		if (ip->curx < ip->cols)
2274 			ip->tabs[ip->curx] = 1;
2275 		break;
2276 
2277 	case RI:	/* reverse index */
2278 		ite_rlf (ip);
2279 		break;
2280 
2281 	case SS2:	/* go into G2 for one character */
2282 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2283 		ip->GR = &ip->G2;	/* GL XXX */
2284 		break;
2285 
2286 	case SS3:	/* go into G3 for one character */
2287 		ip->save_GL = ip->GR;	/* GL XXX EUC */
2288 		ip->GR = &ip->G3;	/* GL XXX */
2289 		break;
2290 
2291 	case DCS:	/* device control string introducer */
2292 		ip->escape = DCS;
2293 		ip->ap = ip->argbuf;
2294 		break;
2295 
2296 	case CSI:	/* control sequence introducer */
2297 		ip->escape = CSI;
2298 		ip->ap = ip->argbuf;
2299 		break;
2300 
2301 	case ST:	/* string terminator */
2302 		/* ignore, if not used as terminator */
2303 		break;
2304 
2305 	case OSC:	/* introduces OS command. Ignore everything upto ST */
2306 		ip->escape = OSC;
2307 		break;
2308 
2309 	case PM:	/* privacy message, ignore everything upto ST */
2310 		ip->escape = PM;
2311 		break;
2312 
2313 	case APC:	/* application program command, ignore everything upto ST */
2314 		ip->escape = APC;
2315 		break;
2316 
2317 	case DEL:
2318 		break;
2319 
2320 	default:
2321 		if (!ip->save_char && (*((c & 0x80) ? ip->GR : ip->GL) & CSET_MULTI)) {
2322 			ip->save_char = c;
2323 			break;
2324 		}
2325 		if (ip->imode)
2326 			ite_inchar(ip, ip->save_char ? 2 : 1);
2327 		iteprecheckwrap(ip);
2328 #ifdef DO_WEIRD_ATTRIBUTES
2329 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2330 			attrset(ip, ATTR_INV);
2331 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2332 		}
2333 		else
2334 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2335 #else
2336 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2337 #endif
2338 /*		SUBR_CURSOR(ip, DRAW_CURSOR);*/
2339 		itecheckwrap(ip);
2340 		if (ip->save_char) {
2341 			itecheckwrap(ip);
2342 			ip->save_char = 0;
2343 		}
2344 		if (ip->save_GL) {
2345 			/*
2346 			 * reset single shift
2347 			 */
2348 			ip->GR = ip->save_GL;
2349 			ip->save_GL = 0;
2350 		}
2351 		break;
2352 	}
2353 }
2354 
2355 static void
2356 iteprecheckwrap(ip)
2357 	struct ite_softc *ip;
2358 {
2359 	if (ip->auto_wrap && ip->curx + (ip->save_char ? 1 : 0) == ip->cols) {
2360 		ip->curx = 0;
2361 		clr_attr(ip, ATTR_INV);
2362 		if (++ip->cury >= ip->bottom_margin + 1) {
2363 			ip->cury = ip->bottom_margin;
2364 			/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2365 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2366 			ite_clrtoeol(ip);
2367 		} /*else
2368 			SUBR_CURSOR(ip, MOVE_CURSOR);*/
2369 	}
2370 }
2371 
2372 static void
2373 itecheckwrap(ip)
2374      struct ite_softc *ip;
2375 {
2376 #if 0
2377 	if (++ip->curx == ip->cols) {
2378 		if (ip->auto_wrap) {
2379 			ip->curx = 0;
2380 			clr_attr(ip, ATTR_INV);
2381 			if (++ip->cury >= ip->bottom_margin + 1) {
2382 				ip->cury = ip->bottom_margin;
2383 				SUBR_CURSOR(ip, MOVE_CURSOR);
2384 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
2385 				ite_clrtoeol(ip);
2386 				return;
2387 			}
2388 		} else
2389 			/* stay there if no autowrap.. */
2390 			ip->curx--;
2391 	}
2392 #else
2393 	if (ip->curx < ip->cols) {
2394 		ip->curx++;
2395 		/*SUBR_CURSOR(ip, MOVE_CURSOR);*/
2396 	}
2397 #endif
2398 }
2399 
2400 #endif
2401 
2402 #if NITE > 0 && NKBD > 0
2403 
2404 /*
2405  * Console functions
2406  */
2407 #include <dev/cons.h>
2408 extern void kbdenable __P((int));
2409 extern int kbdcngetc __P((void));
2410 
2411 /*
2412  * Return a priority in consdev->cn_pri field highest wins.  This function
2413  * is called before any devices have been probed.
2414  */
2415 void
2416 itecnprobe(cd)
2417 	struct consdev *cd;
2418 {
2419 	int maj;
2420 
2421 	/* locate the major number */
2422 	for (maj = 0; maj < nchrdev; maj++)
2423 		if (cdevsw[maj].d_open == iteopen)
2424 			break;
2425 
2426 	/*
2427 	 * return priority of the best ite (already picked from attach)
2428 	 * or CN_DEAD.
2429 	 */
2430 	if (con_itesoftc.grf == NULL)
2431 		cd->cn_pri = CN_DEAD;
2432 	else {
2433 		con_itesoftc.flags = (ITE_ALIVE|ITE_CONSOLE);
2434 		/*
2435 		 * hardcode the minor number.
2436 		 * currently we support only one ITE, it is enough for now.
2437 		 */
2438 		con_itesoftc.isw = &itesw[0];
2439 		cd->cn_pri = CN_INTERNAL;
2440 		cd->cn_dev = makedev(maj, 0);
2441 	}
2442 
2443 }
2444 
2445 void
2446 itecninit(cd)
2447 	struct consdev *cd;
2448 {
2449 	struct ite_softc *ip;
2450 
2451 	ip = getitesp(cd->cn_dev);
2452 	iteinit(cd->cn_dev);	       /* init console unit */
2453 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
2454 	kbdenable(0);
2455 	mfp_send_usart(0x49);
2456 }
2457 
2458 /*
2459  * itecnfinish() is called in ite_init() when the device is
2460  * being probed in the normal fasion, thus we can finish setting
2461  * up this ite now that the system is more functional.
2462  */
2463 void
2464 itecnfinish(ip)
2465 	struct ite_softc *ip;
2466 {
2467 	static int done;
2468 
2469 	if (done)
2470 		return;
2471 	done = 1;
2472 }
2473 
2474 /*ARGSUSED*/
2475 int
2476 itecngetc(dev)
2477 	dev_t dev;
2478 {
2479 	register int c;
2480 
2481 	do {
2482 		c = kbdcngetc();
2483 		c = ite_cnfilter(c);
2484 	} while (c == -1);
2485 	return (c);
2486 }
2487 
2488 void
2489 itecnputc(dev, c)
2490 	dev_t dev;
2491 	int c;
2492 {
2493 	static int paniced = 0;
2494 	struct ite_softc *ip = getitesp(dev);
2495 	char ch = c;
2496 #ifdef ITE_KERNEL_ATTR
2497 	short save_attribute;
2498 #endif
2499 
2500 	if (panicstr && !paniced &&
2501 	    (ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) {
2502 		(void) iteon(dev, 3);
2503 		paniced = 1;
2504 	}
2505 #ifdef ITE_KERNEL_ATTR
2506 	save_attribute = ip->attribute;
2507 	ip->attribute = ITE_KERNEL_ATTR;
2508 #endif
2509 	ite_putstr(&ch, 1, dev);
2510 #ifdef ITE_KERNEL_ATTR
2511 	ip->attribute = save_attribute;
2512 #endif
2513 }
2514 #endif
2515