xref: /netbsd/sys/arch/amiga/dev/ite.c (revision bf9ec67e)
1 /*	$NetBSD: ite.c,v 1.59 2002/03/17 19:40:30 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  *	@(#)ite.c 7.6 (Berkeley) 5/16/91
42  */
43 
44 /*
45  * ite - bitmaped terminal.
46  * Supports VT200, a few terminal features will be unavailable until
47  * the system actually probes the device (i.e. not after consinit())
48  */
49 
50 #include "opt_ddb.h"
51 
52 #include <sys/cdefs.h>
53 __KERNEL_RCSID(0, "$NetBSD: ite.c,v 1.59 2002/03/17 19:40:30 atatat Exp $");
54 
55 #include <sys/param.h>
56 #include <sys/kernel.h>
57 #include <sys/device.h>
58 #include <sys/fcntl.h>
59 #include <sys/malloc.h>
60 #include <sys/ioctl.h>
61 #include <sys/tty.h>
62 #include <sys/termios.h>
63 #include <sys/systm.h>
64 #include <sys/callout.h>
65 #include <sys/proc.h>
66 #include <dev/cons.h>
67 #include <amiga/amiga/cc.h>
68 #include <amiga/amiga/color.h>	/* DEBUG */
69 #include <amiga/amiga/custom.h>	/* DEBUG */
70 #include <amiga/amiga/device.h>
71 #if defined(__m68k__)
72 #include <amiga/amiga/isr.h>
73 #endif
74 #include <amiga/dev/iteioctl.h>
75 #include <amiga/dev/itevar.h>
76 #include <amiga/dev/kbdmap.h>
77 #include <amiga/dev/grfioctl.h>
78 #include <amiga/dev/grfvar.h>
79 
80 #include <machine/cpu.h>	/* for is_draco() */
81 
82 #include <sys/conf.h>
83 #include <machine/conf.h>
84 
85 #include "grfcc.h"
86 #include "ite.h"
87 
88 /*
89  * XXX go ask sys/kern/tty.c:ttselect()
90  */
91 
92 #define ITEUNIT(dev)	(minor(dev))
93 
94 #define SUBR_INIT(ip)		(ip)->grf->g_iteinit(ip)
95 #define SUBR_DEINIT(ip)		(ip)->grf->g_itedeinit(ip)
96 #define SUBR_PUTC(ip,c,dy,dx,m)	(ip)->grf->g_iteputc(ip,c,dy,dx,m)
97 #define SUBR_CURSOR(ip,flg)	(ip)->grf->g_itecursor(ip,flg)
98 #define SUBR_CLEAR(ip,sy,sx,h,w)	(ip)->grf->g_iteclear(ip,sy,sx,h,w)
99 #define SUBR_SCROLL(ip,sy,sx,count,dir)	\
100     (ip)->grf->g_itescroll(ip,sy,sx,count,dir)
101 
102 u_int	ite_confunits;			/* configured units */
103 
104 int	start_repeat_timeo = 30;	/* first repeat after x s/100 */
105 int	next_repeat_timeo = 10;		/* next repeat after x s/100 */
106 
107 int	ite_default_wrap = 1;		/* you want vtxxx-nam, binpatch */
108 
109 struct	ite_softc con_itesoftc;
110 u_char	cons_tabs[MAX_TABS];
111 
112 struct ite_softc *kbd_ite;
113 
114 /* audio bell stuff */
115 u_int bvolume = 10;
116 u_int bpitch = 660;
117 u_int bmsec = 75;
118 
119 static char *bsamplep;
120 static char sample[20] = {
121 	0,39,75,103,121,127,121,103,75,39,0,
122 	-39,-75,-103,-121,-127,-121,-103,-75,-39
123 };
124 
125 static char *index(const char *, char);
126 void iteputchar(int c, struct ite_softc *ip);
127 void ite_putstr(const char * s, int len, dev_t dev);
128 void iteattach(struct device *, struct device *, void *);
129 int itematch(struct device *, struct cfdata *, void *);
130 static void iteprecheckwrap(struct ite_softc *);
131 static void itecheckwrap(struct ite_softc *);
132 struct ite_softc *getitesp(dev_t);
133 void init_bell(void);
134 void ite_bell(void);
135 void itecnpollc(dev_t, int);
136 static void repeat_handler(void *);
137 inline static void ite_sendstr(char *);
138 static void alignment_display(struct ite_softc *);
139 inline static void snap_cury(struct ite_softc *);
140 inline static void ite_dnchar(struct ite_softc *, int);
141 inline static void ite_inchar(struct ite_softc *, int);
142 inline static void ite_clrtoeol(struct ite_softc *);
143 inline static void ite_clrtobol(struct ite_softc *);
144 inline static void ite_clrline(struct ite_softc *);
145 inline static void ite_clrtoeos(struct ite_softc *);
146 inline static void ite_clrtobos(struct ite_softc *);
147 inline static void ite_clrscreen(struct ite_softc *);
148 inline static void ite_dnline(struct ite_softc *, int);
149 inline static void ite_inline(struct ite_softc *, int);
150 inline static void ite_lf(struct ite_softc *);
151 inline static void ite_crlf(struct ite_softc *);
152 inline static void ite_cr(struct ite_softc *);
153 inline static void ite_rlf(struct ite_softc *);
154 inline static int atoi(const char *);
155 inline static int ite_argnum(struct ite_softc *);
156 inline static int ite_zargnum(struct ite_softc *);
157 
158 struct cfattach ite_ca = {
159 	sizeof(struct ite_softc), itematch, iteattach
160 };
161 
162 extern struct cfdriver ite_cd;
163 
164 int
165 itematch(struct device *pdp, struct cfdata *cfp, void *auxp)
166 {
167 	struct grf_softc *gp;
168 	int maj;
169 
170 	gp = auxp;
171 	/*
172 	 * all that our mask allows (more than enough no one
173 	 * has > 32 monitors for text consoles on one machine)
174 	 */
175 	if (cfp->cf_unit >= sizeof(ite_confunits) * NBBY)
176 		return(0);
177 	/*
178 	 * XXX
179 	 * normally this would be done in attach, however
180 	 * during early init we do not have a device pointer
181 	 * and thus no unit number.
182 	 */
183 	for(maj = 0; maj < nchrdev; maj++)
184 		if (cdevsw[maj].d_open == iteopen)
185 			break;
186 	gp->g_itedev = makedev(maj, cfp->cf_unit);
187 	return(1);
188 }
189 
190 void
191 iteattach(struct device *pdp, struct device *dp, void *auxp)
192 {
193 	struct grf_softc *gp;
194 	struct ite_softc *ip;
195 	int s;
196 
197 	gp = (struct grf_softc *)auxp;
198 
199 	/*
200 	 * mark unit as attached (XXX see itematch)
201 	 */
202 	ite_confunits |= 1 << ITEUNIT(gp->g_itedev);
203 
204 	if (dp) {
205 		ip = (struct ite_softc *)dp;
206 
207 		s = spltty();
208 		if (con_itesoftc.grf != NULL &&
209 		    con_itesoftc.grf->g_unit == gp->g_unit) {
210 			/*
211 			 * console reinit copy params over.
212 			 * and console always gets keyboard
213 			 */
214 			bcopy(&con_itesoftc.grf, &ip->grf,
215 			    (char *)&ip[1] - (char *)&ip->grf);
216 			con_itesoftc.grf = NULL;
217 			kbd_ite = ip;
218 		}
219 		ip->grf = gp;
220 		splx(s);
221 
222 		alloc_sicallback();
223 		iteinit(gp->g_itedev);
224 		printf(": rows %d cols %d", ip->rows, ip->cols);
225 		printf(" repeat at (%d/100)s next at (%d/100)s",
226 		    start_repeat_timeo, next_repeat_timeo);
227 
228 		if (kbd_ite == NULL)
229 			kbd_ite = ip;
230 		if (kbd_ite == ip)
231 			printf(" has keyboard");
232 		printf("\n");
233 	} else {
234 		if (con_itesoftc.grf != NULL &&
235 		    con_itesoftc.grf->g_conpri > gp->g_conpri)
236 			return;
237 		con_itesoftc.grf = gp;
238 		con_itesoftc.tabs = cons_tabs;
239 	}
240 }
241 
242 struct ite_softc *
243 getitesp(dev_t dev)
244 {
245 	if (amiga_realconfig && con_itesoftc.grf == NULL)
246 		return(ite_cd.cd_devs[ITEUNIT(dev)]);
247 
248 	if (con_itesoftc.grf == NULL)
249 		panic("no ite_softc for console");
250 	return(&con_itesoftc);
251 }
252 
253 /*
254  * cons.c entry points into ite device.
255  */
256 
257 /*
258  * Return a priority in consdev->cn_pri field highest wins.  This function
259  * is called before any devices have been probed.
260  */
261 void
262 itecnprobe(struct consdev *cd)
263 {
264 	/*
265 	 * bring graphics layer up.
266 	 */
267 	config_console();
268 
269 	/*
270 	 * return priority of the best ite (already picked from attach)
271 	 * or CN_DEAD.
272 	 */
273 	if (con_itesoftc.grf == NULL)
274 		cd->cn_pri = CN_DEAD;
275 	else {
276 		cd->cn_pri = con_itesoftc.grf->g_conpri;
277 		cd->cn_dev = con_itesoftc.grf->g_itedev;
278 	}
279 }
280 
281 /* audio bell stuff */
282 void
283 init_bell(void)
284 {
285 	if (bsamplep != NULL)
286 		return;
287 	bsamplep = alloc_chipmem(20);
288 	if (bsamplep == NULL)
289 		panic("no chipmem for ite_bell");
290 
291 	bcopy(sample, bsamplep, 20);
292 }
293 
294 void
295 ite_bell(void)
296 {
297 	u_int clock;
298 	u_int period;
299 	u_int count;
300 
301 	clock = 3579545; 	/* PAL 3546895 */
302 
303 	/*
304 	 * the number of clock ticks per sample byte must be > 124
305 	 * ergo bpitch must be < clock / 124*20
306 	 * i.e. ~1443, 1300 to be safe (PAL etc.). also not zero obviously
307 	 */
308 	period = clock / (bpitch * 20);
309 	count = bmsec * bpitch / 1000;
310 
311 	play_sample(10, PREP_DMA_MEM(bsamplep), period, bvolume, 0x3, count);
312 }
313 
314 void
315 itecninit(struct consdev *cd)
316 {
317 	struct ite_softc *ip;
318 
319 	ip = getitesp(cd->cn_dev);
320 	iteinit(cd->cn_dev);
321 	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
322 
323 #ifdef DRACO
324 	if (!is_draco())
325 #endif
326 	init_bell();
327 }
328 
329 /*
330  * ite_cnfinish() is called in ite_init() when the device is
331  * being probed in the normal fasion, thus we can finish setting
332  * up this ite now that the system is more functional.
333  */
334 void
335 ite_cnfinish(struct ite_softc *ip)
336 {
337 	static int done;
338 
339 	if (done)
340 		return;
341 	done = 1;
342 }
343 
344 int
345 itecngetc(dev_t dev)
346 {
347 	int c;
348 
349 	/* XXX this should be moved */
350 	kbdenable();
351 	do {
352 		c = kbdgetcn();
353 		c = ite_cnfilter(c, ITEFILT_CONSOLE);
354 	} while (c == -1);
355 	return (c);
356 }
357 
358 void
359 itecnputc(dev_t dev, int c)
360 {
361 	static int paniced;
362 	struct ite_softc *ip;
363 	char ch;
364 
365 	ip = getitesp(dev);
366 	ch = c;
367 
368 	if (panicstr && !paniced &&
369 	    (ip->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) {
370 		(void)ite_on(dev, 3);
371 		paniced = 1;
372 	}
373 	iteputchar(ch, ip);
374 }
375 
376 void
377 itecnpollc(dev_t dev, int on)
378 {
379 }
380 
381 /*
382  * standard entry points to the device.
383  */
384 
385 /*
386  * iteinit() is the standard entry point for initialization of
387  * an ite device, it is also called from ite_cninit().
388  *
389  */
390 void
391 iteinit(dev_t dev)
392 {
393 	struct ite_softc *ip;
394 	static int kbdmap_loaded = 0;
395 
396 	ip = getitesp(dev);
397 	if (ip->flags & ITE_INITED)
398 		return;
399 	if (kbdmap_loaded == 0) {
400 		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
401 		kbdmap_loaded = 1;
402 	}
403 
404 	ip->cursorx = 0;
405 	ip->cursory = 0;
406 	SUBR_INIT(ip);
407 	SUBR_CURSOR(ip, DRAW_CURSOR);
408 	if (ip->tabs == NULL)
409 		ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK);
410 	ite_reset(ip);
411 	ip->flags |= ITE_INITED;
412 }
413 
414 int
415 iteopen(dev_t dev, int mode, int devtype, struct proc *p)
416 {
417 	struct ite_softc *ip;
418 	struct tty *tp;
419 	int error, first, unit;
420 
421 	unit = ITEUNIT(dev);
422 	first = 0;
423 
424 	if (((1 << unit) & ite_confunits) == 0)
425 		return (ENXIO);
426 
427 	ip = getitesp(dev);
428 
429 	if (ip->tp == NULL) {
430 		tp = ip->tp = ttymalloc();
431 		tty_attach(tp);
432 	} else
433 		tp = ip->tp;
434 	if ((tp->t_state & (TS_ISOPEN | TS_XCLUDE)) == (TS_ISOPEN | TS_XCLUDE)
435 	    && p->p_ucred->cr_uid != 0)
436 		return (EBUSY);
437 	if ((ip->flags & ITE_ACTIVE) == 0) {
438 		error = ite_on(dev, 0);
439 		if (error)
440 			return (error);
441 		first = 1;
442 	}
443 	tp->t_oproc = itestart;
444 	tp->t_param = ite_param;
445 	tp->t_dev = dev;
446 	if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
447 		ttychars(tp);
448 		tp->t_iflag = TTYDEF_IFLAG;
449 		tp->t_oflag = TTYDEF_OFLAG;
450 		tp->t_cflag = TTYDEF_CFLAG;
451 		tp->t_lflag = TTYDEF_LFLAG;
452 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
453 		tp->t_state = TS_CARR_ON;
454 		ttsetwater(tp);
455 	}
456 	error = ttyopen(tp, 0, mode & O_NONBLOCK);
457 	if (error)
458 		goto bad;
459 
460 	error = tp->t_linesw->l_open(dev, tp);
461 	if (error)
462 		goto bad;
463 
464 	tp->t_winsize.ws_row = ip->rows;
465 	tp->t_winsize.ws_col = ip->cols;
466 	kbdenable();
467 	return (0);
468 bad:
469 	if (first)
470 		ite_off(dev, 0);
471 	return (error);
472 }
473 
474 int
475 iteclose(dev_t dev, int flag, int mode, struct proc *p)
476 {
477 	struct tty *tp;
478 
479 	tp = getitesp(dev)->tp;
480 
481 	KDASSERT(tp);
482 	tp->t_linesw->l_close(tp, flag);
483 	ttyclose(tp);
484 	ite_off(dev, 0);
485 	return (0);
486 }
487 
488 int
489 iteread(dev_t dev, struct uio *uio, int flag)
490 {
491 	struct tty *tp;
492 
493 	tp = getitesp(dev)->tp;
494 
495 	KDASSERT(tp);
496 	return tp->t_linesw->l_read(tp, uio, flag);
497 }
498 
499 int
500 itewrite(dev_t dev, struct uio *uio, int flag)
501 {
502 	struct tty *tp;
503 
504 	tp = getitesp(dev)->tp;
505 
506 	KDASSERT(tp);
507 	return tp->t_linesw->l_write(tp, uio, flag);
508 }
509 
510 int
511 itepoll(dev_t dev, int events, struct proc *p)
512 {
513 	struct tty *tp;
514 
515 	tp = getitesp(dev)->tp;
516 
517 	KDASSERT(tp);
518 	return ((*tp->t_linesw->l_poll)(tp, events, p));
519 }
520 
521 struct tty *
522 itetty(dev_t dev)
523 {
524 	return (getitesp(dev)->tp);
525 }
526 
527 void
528 itestop(struct tty *tp, int flag)
529 {
530 
531 }
532 
533 int
534 iteioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
535 {
536 	struct iterepeat *irp;
537 	struct ite_softc *ip;
538 	struct itebell *ib;
539 	struct tty *tp;
540 	int error;
541 
542 	ip = getitesp(dev);
543 	tp = ip->tp;
544 
545 	KDASSERT(tp);
546 
547 	error = tp->t_linesw->l_ioctl(tp, cmd, addr, flag, p);
548 	if (error != EPASSTHROUGH)
549 		return (error);
550 	error = ttioctl(tp, cmd, addr, flag, p);
551 	if (error != EPASSTHROUGH)
552 		return (error);
553 
554 	switch (cmd) {
555 	case ITEIOCGBELL:
556 		ib = (struct itebell *)addr;
557 		ib->volume = bvolume;
558 		ib->pitch = bpitch;
559 		ib->msec = bmsec;
560 		return (0);
561 	case ITEIOCSBELL:
562 		ib = (struct itebell *)addr;
563 
564 		if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH ||
565 		    ib->volume > MAXBVOLUME || ib->msec > MAXBTIME)
566 			return (EINVAL);
567 		bvolume = ib->volume;
568 		bpitch = ib->pitch;
569 		bmsec = ib->msec;
570 		return (0);
571 	case ITEIOCSKMAP:
572 		if (addr == 0)
573 			return(EFAULT);
574 		bcopy(addr, &kbdmap, sizeof(struct kbdmap));
575 		return(0);
576 	case ITEIOCGKMAP:
577 		if (addr == NULL)
578 			return(EFAULT);
579 		bcopy(&kbdmap, addr, sizeof(struct kbdmap));
580 		return(0);
581 	case ITEIOCGREPT:
582 		irp = (struct iterepeat *)addr;
583 		irp->start = start_repeat_timeo;
584 		irp->next = next_repeat_timeo;
585 		return (0);
586 	case ITEIOCSREPT:
587 		irp = (struct iterepeat *)addr;
588 		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
589 			return(EINVAL);
590 		start_repeat_timeo = irp->start;
591 		next_repeat_timeo = irp->next;
592 		return(0);
593 	}
594 #if NGRFCC > 0
595 	/* XXX */
596 	if (minor(dev) == 0) {
597 		error = ite_grf_ioctl(ip, cmd, addr, flag, p);
598 		if (error >= 0)
599 			return (error);
600 	}
601 #endif
602 	return (EPASSTHROUGH);
603 }
604 
605 void
606 itestart(struct tty *tp)
607 {
608 	struct clist *rbp;
609 	struct ite_softc *ip;
610 	u_char buf[ITEBURST];
611 	int s, len;
612 
613 	ip = getitesp(tp->t_dev);
614 
615 	KDASSERT(tp);
616 
617 	s = spltty(); {
618 		if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
619 			goto out;
620 
621 		tp->t_state |= TS_BUSY;
622 		rbp = &tp->t_outq;
623 
624 		len = q_to_b(rbp, buf, ITEBURST);
625 	} splx(s);
626 
627 	/* Here is a really good place to implement pre/jumpscroll() */
628 	ite_putstr(buf, len, tp->t_dev);
629 
630 	s = spltty(); {
631 		tp->t_state &= ~TS_BUSY;
632 		/* we have characters remaining. */
633 		if (rbp->c_cc) {
634 			tp->t_state |= TS_TIMEOUT;
635 			callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
636 		}
637 		/* wakeup we are below */
638 		if (rbp->c_cc <= tp->t_lowat) {
639 			if (tp->t_state & TS_ASLEEP) {
640 				tp->t_state &= ~TS_ASLEEP;
641 				wakeup((caddr_t) rbp);
642 			}
643 			selwakeup(&tp->t_wsel);
644 		}
645 	      out:
646 	} splx(s);
647 }
648 
649 int
650 ite_on(dev_t dev, int flag)
651 {
652 	struct ite_softc *ip;
653 	int unit;
654 
655 	unit = ITEUNIT(dev);
656 	if (((1 << unit) & ite_confunits) == 0)
657 		return (ENXIO);
658 
659 	ip = getitesp(dev);
660 
661 	/* force ite active, overriding graphics mode */
662 	if (flag & 1) {
663 		ip->flags |= ITE_ACTIVE;
664 		ip->flags &= ~(ITE_INGRF | ITE_INITED);
665 	}
666 	/* leave graphics mode */
667 	if (flag & 2) {
668 		ip->flags &= ~ITE_INGRF;
669 		if ((ip->flags & ITE_ACTIVE) == 0)
670 			return (0);
671 	}
672 	ip->flags |= ITE_ACTIVE;
673 	if (ip->flags & ITE_INGRF)
674 		return (0);
675 	iteinit(dev);
676 	return (0);
677 }
678 
679 void
680 ite_off(dev_t dev, int flag)
681 {
682 	struct ite_softc *ip;
683 
684 	ip = getitesp(dev);
685 	if (flag & 2)
686 		ip->flags |= ITE_INGRF;
687 	if ((ip->flags & ITE_ACTIVE) == 0)
688 		return;
689 	if ((flag & 1) ||
690 	    (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED)
691 		SUBR_DEINIT(ip);
692 	/* XXX hmm grfon() I think wants this to  go inactive. */
693 	if ((flag & 2) == 0)
694 		ip->flags &= ~ITE_ACTIVE;
695 }
696 
697 /* XXX called after changes made in underlying grf layer. */
698 /* I want to nuke this */
699 void
700 ite_reinit(dev_t dev)
701 {
702 	struct ite_softc *ip;
703 
704 	ip = getitesp(dev);
705 	ip->flags &= ~ITE_INITED;
706 	iteinit(dev);
707 }
708 
709 int
710 ite_param(struct tty *tp, struct termios *t)
711 {
712 	tp->t_ispeed = t->c_ispeed;
713 	tp->t_ospeed = t->c_ospeed;
714 	tp->t_cflag = t->c_cflag;
715 	return (0);
716 }
717 
718 void
719 ite_reset(struct ite_softc *ip)
720 {
721 	int i;
722 
723 	ip->curx = 0;
724 	ip->cury = 0;
725 	ip->attribute = ATTR_NOR;
726 	ip->save_curx = 0;
727 	ip->save_cury = 0;
728 	ip->save_attribute = ATTR_NOR;
729 	ip->ap = ip->argbuf;
730 	ip->emul_level = 0;
731 	ip->eightbit_C1 = 0;
732 	ip->top_margin = 0;
733 	ip->bottom_margin = ip->rows - 1;
734 	ip->inside_margins = 0;
735 	ip->linefeed_newline = 0;
736 	ip->auto_wrap = ite_default_wrap;
737 	ip->cursor_appmode = 0;
738 	ip->keypad_appmode = 0;
739 	ip->imode = 0;
740 	ip->key_repeat = 1;
741 	bzero(ip->tabs, ip->cols);
742 	for (i = 0; i < ip->cols; i++)
743 		ip->tabs[i] = ((i & 7) == 0);
744 }
745 
746 /*
747  * has to be global becuase of the shared filters.
748  */
749 static u_char key_mod;
750 static u_char last_dead;
751 
752 /* Used in console at startup only */
753 int
754 ite_cnfilter(u_char c, enum caller caller)
755 {
756 	struct key key;
757 	u_char code, up, mask;
758 	int s, i;
759 
760 	up = c & 0x80 ? 1 : 0;
761 	c &= 0x7f;
762 	code = 0;
763 
764 	s = spltty();
765 
766 	i = (int)c - KBD_LEFT_SHIFT;
767 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
768 		mask = 1 << i;
769 		if (up)
770 			key_mod &= ~mask;
771 		else
772 			key_mod |= mask;
773 		splx(s);
774 		return -1;
775 	}
776 
777 	if (up) {
778 		splx(s);
779 		return -1;
780 	}
781 
782 	/* translate modifiers */
783 	if (key_mod & KBD_MOD_SHIFT) {
784 		if (key_mod & KBD_MOD_ALT)
785 			key = kbdmap.alt_shift_keys[c];
786 		else
787 			key = kbdmap.shift_keys[c];
788 	} else if (key_mod & KBD_MOD_ALT)
789 		key = kbdmap.alt_keys[c];
790 	else {
791 		key = kbdmap.keys[c];
792 		/* if CAPS and key is CAPable (no pun intended) */
793 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
794 			key = kbdmap.shift_keys[c];
795 	}
796 	code = key.code;
797 
798 	/* if string return */
799 	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
800 		splx(s);
801 		return -1;
802 	}
803 	/* handle dead keys */
804 	if (key.mode & KBD_MODE_DEAD) {
805 		/* if entered twice, send accent itself */
806 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
807 			last_dead = 0;
808 		else {
809 			last_dead = key.mode & KBD_MODE_ACCMASK;
810 			splx(s);
811 			return -1;
812 		}
813 	}
814 	if (last_dead) {
815 		/* can't apply dead flag to string-keys */
816 		if (code >= '@' && code < 0x7f)
817 			code =
818 			    acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
819 		last_dead = 0;
820 	}
821 	if (key_mod & KBD_MOD_CTRL)
822 		code &= 0x1f;
823 	if (key_mod & KBD_MOD_META)
824 		code |= 0x80;
825 
826 	/* do console mapping. */
827 	code = code == '\r' ? '\n' : code;
828 
829 	splx(s);
830 	return (code);
831 }
832 
833 /* And now the old stuff. */
834 
835 /* these are used to implement repeating keys.. */
836 static u_char last_char;
837 static u_char tout_pending;
838 
839 static struct callout repeat_ch = CALLOUT_INITIALIZER;
840 
841 /*ARGSUSED*/
842 static void
843 repeat_handler(void *arg)
844 {
845 	tout_pending = 0;
846 	if (last_char)
847 		ite_filter(last_char, ITEFILT_REPEATER);
848 }
849 
850 void
851 ite_filter(u_char c, enum caller caller)
852 {
853 	struct tty *kbd_tty;
854 	u_char code, *str, up, mask;
855 	struct key key;
856 	int s, i;
857 
858 	if (kbd_ite == NULL || kbd_ite->tp == NULL)
859 		return;
860 
861 	kbd_tty = kbd_ite->tp;
862 
863 	/* have to make sure we're at spltty in here */
864 	s = spltty();
865 
866 	/*
867 	 * keyboard interrupts come at priority 2, while softint
868 	 * generated keyboard-repeat interrupts come at level 1.  So,
869 	 * to not allow a key-up event to get thru before a repeat for
870 	 * the key-down, we remove any outstanding callout requests..
871 	rem_sicallback(ite_sifilter);
872 	 */
873 
874 	up = c & 0x80 ? 1 : 0;
875 	c &= 0x7f;
876 	code = 0;
877 
878 	i = (int)c - KBD_LEFT_SHIFT;
879 	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
880 		mask = 1 << i;
881 		if (up)
882 			key_mod &= ~mask;
883 		else
884 			key_mod |= mask;
885 		splx(s);
886 		return;
887 	}
888 	/* stop repeating on up event */
889 	if (up) {
890 		if (tout_pending) {
891 			callout_stop(&repeat_ch);
892 			tout_pending = 0;
893 			last_char = 0;
894 		}
895 		splx(s);
896 		return;
897 	} else if (tout_pending && last_char != c) {
898 		/* different character, stop also */
899 		callout_stop(&repeat_ch);
900 		tout_pending = 0;
901 		last_char = 0;
902 	}
903 	/* Safety button, switch back to ascii keymap. */
904 	if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) {
905 		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
906 
907 		splx(s);
908 		return;
909 #ifdef DDB
910 	} else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) {
911 		Debugger();
912 		splx(s);
913 		return;
914 #endif
915 	}
916 	/* translate modifiers */
917 	if (key_mod & KBD_MOD_SHIFT) {
918 		if (key_mod & KBD_MOD_ALT)
919 			key = kbdmap.alt_shift_keys[c];
920 		else
921 			key = kbdmap.shift_keys[c];
922 	} else if (key_mod & KBD_MOD_ALT)
923 		key = kbdmap.alt_keys[c];
924 	else {
925 		key = kbdmap.keys[c];
926 		/* if CAPS and key is CAPable (no pun intended) */
927 		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
928 			key = kbdmap.shift_keys[c];
929 	}
930 	code = key.code;
931 
932 	/*
933 	 * arrange to repeat the keystroke. By doing this at the level
934 	 * of scan-codes, we can have function keys, and keys that
935 	 * send strings, repeat too. This also entitles an additional
936 	 * overhead, since we have to do the conversion each time, but
937 	 * I guess that's ok.
938 	 */
939 	if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) {
940 		tout_pending = 1;
941 		last_char = c;
942 		callout_reset(&repeat_ch,
943 		    start_repeat_timeo * hz / 100, repeat_handler, NULL);
944 	} else if (!tout_pending && caller == ITEFILT_REPEATER &&
945 	    kbd_ite->key_repeat) {
946 		tout_pending = 1;
947 		last_char = c;
948 		callout_reset(&repeat_ch,
949 		    next_repeat_timeo * hz / 100, repeat_handler, NULL);
950 	}
951 	/* handle dead keys */
952 	if (key.mode & KBD_MODE_DEAD) {
953 		/* if entered twice, send accent itself */
954 		if (last_dead == (key.mode & KBD_MODE_ACCMASK))
955 			last_dead = 0;
956 		else {
957 			last_dead = key.mode & KBD_MODE_ACCMASK;
958 			splx(s);
959 			return;
960 		}
961 	}
962 	if (last_dead) {
963 		/* can't apply dead flag to string-keys */
964 		if (!(key.mode & KBD_MODE_STRING) && code >= '@' &&
965 		    code < 0x7f)
966 			code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
967 		last_dead = 0;
968 	}
969 	/* if not string, apply META and CTRL modifiers */
970 	if (!(key.mode & KBD_MODE_STRING)
971 	    && (!(key.mode & KBD_MODE_KPAD) ||
972 		(kbd_ite && !kbd_ite->keypad_appmode))) {
973 		if (key_mod & KBD_MOD_CTRL)
974 			code &= 0x1f;
975 		if (key_mod & KBD_MOD_META)
976 			code |= 0x80;
977 	} else if ((key.mode & KBD_MODE_KPAD) &&
978 	    (kbd_ite && kbd_ite->keypad_appmode)) {
979 		static char in[] = {
980 		    0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */,
981 		    0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */,
982 		    0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */,
983 		    0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */,
984 		    0x5c /* / */, 0x5d /* * */
985 		};
986 		static char *out = "pqrstuvwxymlnMPQRS";
987 		char *cp = index (in, c);
988 
989 		/*
990 		 * keypad-appmode sends SS3 followed by the above
991 		 * translated character
992 		 */
993 		kbd_tty->t_linesw->l_rint(27, kbd_tty);
994 		kbd_tty->t_linesw->l_rint('O', kbd_tty);
995 		kbd_tty->t_linesw->l_rint(out[cp - in], kbd_tty);
996 		splx(s);
997 		return;
998 	} else {
999 		/* *NO* I don't like this.... */
1000 		static u_char app_cursor[] =
1001 		{
1002 		    3, 27, 'O', 'A',
1003 		    3, 27, 'O', 'B',
1004 		    3, 27, 'O', 'C',
1005 		    3, 27, 'O', 'D'};
1006 
1007 		str = kbdmap.strings + code;
1008 		/*
1009 		 * if this is a cursor key, AND it has the default
1010 		 * keymap setting, AND we're in app-cursor mode, switch
1011 		 * to the above table. This is *nasty* !
1012 		 */
1013 		if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode
1014 		    && !bcmp(str, "\x03\x1b[", 3) &&
1015 		    index("ABCD", str[3]))
1016 			str = app_cursor + 4 * (str[3] - 'A');
1017 
1018 		/*
1019 		 * using a length-byte instead of 0-termination allows
1020 		 * to embed \0 into strings, although this is not used
1021 		 * in the default keymap
1022 		 */
1023 		for (i = *str++; i; i--)
1024 			kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1025 		splx(s);
1026 		return;
1027 	}
1028 	kbd_tty->t_linesw->l_rint(code, kbd_tty);
1029 
1030 	splx(s);
1031 	return;
1032 }
1033 
1034 /* helper functions, makes the code below more readable */
1035 inline static void
1036 ite_sendstr(char *str)
1037 {
1038 	struct tty *kbd_tty;
1039 
1040 	kbd_tty = kbd_ite->tp;
1041 	KDASSERT(kbd_tty);
1042 	while (*str)
1043 		kbd_tty->t_linesw->l_rint(*str++, kbd_tty);
1044 }
1045 
1046 static void
1047 alignment_display(struct ite_softc *ip)
1048 {
1049   int i, j;
1050 
1051   for (j = 0; j < ip->rows; j++)
1052     for (i = 0; i < ip->cols; i++)
1053       SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
1054   attrclr(ip, 0, 0, ip->rows, ip->cols);
1055   SUBR_CURSOR(ip, DRAW_CURSOR);
1056 }
1057 
1058 inline static void
1059 snap_cury(struct ite_softc *ip)
1060 {
1061   if (ip->inside_margins)
1062     {
1063       if (ip->cury < ip->top_margin)
1064 	ip->cury = ip->top_margin;
1065       if (ip->cury > ip->bottom_margin)
1066 	ip->cury = ip->bottom_margin;
1067     }
1068 }
1069 
1070 inline static void
1071 ite_dnchar(struct ite_softc *ip, int n)
1072 {
1073   n = min(n, ip->cols - ip->curx);
1074   if (n < ip->cols - ip->curx)
1075     {
1076       SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
1077       attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
1078 	      1, ip->cols - ip->curx - n);
1079       attrclr(ip, ip->cury, ip->cols - n, 1, n);
1080     }
1081   while (n-- > 0)
1082     SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
1083   SUBR_CURSOR(ip, DRAW_CURSOR);
1084 }
1085 
1086 inline static void
1087 ite_inchar(struct ite_softc *ip, int n)
1088 {
1089   n = min(n, ip->cols - ip->curx);
1090   if (n < ip->cols - ip->curx)
1091     {
1092       SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
1093       attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
1094 	      1, ip->cols - ip->curx - n);
1095       attrclr(ip, ip->cury, ip->curx, 1, n);
1096     }
1097   while (n--)
1098     SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1099   SUBR_CURSOR(ip, DRAW_CURSOR);
1100 }
1101 
1102 inline static void
1103 ite_clrtoeol(struct ite_softc *ip)
1104 {
1105   int y = ip->cury, x = ip->curx;
1106   if (ip->cols - x > 0)
1107     {
1108       SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
1109       attrclr(ip, y, x, 1, ip->cols - x);
1110       SUBR_CURSOR(ip, DRAW_CURSOR);
1111     }
1112 }
1113 
1114 inline static void
1115 ite_clrtobol(struct ite_softc *ip)
1116 {
1117   int y = ip->cury, x = min(ip->curx + 1, ip->cols);
1118   SUBR_CLEAR(ip, y, 0, 1, x);
1119   attrclr(ip, y, 0, 1, x);
1120   SUBR_CURSOR(ip, DRAW_CURSOR);
1121 }
1122 
1123 inline static void
1124 ite_clrline(struct ite_softc *ip)
1125 {
1126   int y = ip->cury;
1127   SUBR_CLEAR(ip, y, 0, 1, ip->cols);
1128   attrclr(ip, y, 0, 1, ip->cols);
1129   SUBR_CURSOR(ip, DRAW_CURSOR);
1130 }
1131 
1132 
1133 
1134 inline static void
1135 ite_clrtoeos(struct ite_softc *ip)
1136 {
1137   ite_clrtoeol(ip);
1138   if (ip->cury < ip->rows - 1)
1139     {
1140       SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
1141       attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
1142       SUBR_CURSOR(ip, DRAW_CURSOR);
1143     }
1144 }
1145 
1146 inline static void
1147 ite_clrtobos(struct ite_softc *ip)
1148 {
1149   ite_clrtobol(ip);
1150   if (ip->cury > 0)
1151     {
1152       SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
1153       attrclr(ip, 0, 0, ip->cury, ip->cols);
1154       SUBR_CURSOR(ip, DRAW_CURSOR);
1155     }
1156 }
1157 
1158 inline static void
1159 ite_clrscreen(struct ite_softc *ip)
1160 {
1161   SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
1162   attrclr(ip, 0, 0, ip->rows, ip->cols);
1163   SUBR_CURSOR(ip, DRAW_CURSOR);
1164 }
1165 
1166 
1167 
1168 inline static void
1169 ite_dnline(struct ite_softc *ip, int n)
1170 {
1171   /* interesting.. if the cursor is outside the scrolling
1172      region, this command is simply ignored.. */
1173   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1174     return;
1175 
1176   n = min(n, ip->bottom_margin + 1 - ip->cury);
1177   if (n <= ip->bottom_margin - ip->cury)
1178     {
1179       SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
1180       attrmov(ip, ip->cury + n, 0, ip->cury, 0,
1181 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1182     }
1183   SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1184   attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
1185   SUBR_CURSOR(ip, DRAW_CURSOR);
1186 }
1187 
1188 inline static void
1189 ite_inline(struct ite_softc *ip, int n)
1190 {
1191   /* interesting.. if the cursor is outside the scrolling
1192      region, this command is simply ignored.. */
1193   if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
1194     return;
1195 
1196   n = min(n, ip->bottom_margin + 1 - ip->cury);
1197   if (n <= ip->bottom_margin - ip->cury)
1198     {
1199       SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
1200       attrmov(ip, ip->cury, 0, ip->cury + n, 0,
1201 	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
1202     }
1203   SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
1204   attrclr(ip, ip->cury, 0, n, ip->cols);
1205   SUBR_CURSOR(ip, DRAW_CURSOR);
1206 }
1207 
1208 inline static void
1209 ite_lf(struct ite_softc *ip)
1210 {
1211   ++ip->cury;
1212   if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows))
1213     {
1214       ip->cury--;
1215       SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1216       ite_clrline(ip);
1217     }
1218   SUBR_CURSOR(ip, MOVE_CURSOR);
1219   clr_attr(ip, ATTR_INV);
1220 }
1221 
1222 inline static void
1223 ite_crlf(struct ite_softc *ip)
1224 {
1225   ip->curx = 0;
1226   ite_lf (ip);
1227 }
1228 
1229 inline static void
1230 ite_cr(struct ite_softc *ip)
1231 {
1232   if (ip->curx)
1233     {
1234       ip->curx = 0;
1235       SUBR_CURSOR(ip, MOVE_CURSOR);
1236     }
1237 }
1238 
1239 inline static void
1240 ite_rlf(struct ite_softc *ip)
1241 {
1242   ip->cury--;
1243   if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1))
1244     {
1245       ip->cury++;
1246       SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
1247       ite_clrline(ip);
1248     }
1249   SUBR_CURSOR(ip, MOVE_CURSOR);
1250   clr_attr(ip, ATTR_INV);
1251 }
1252 
1253 inline static int
1254 atoi(const char *cp)
1255 {
1256   int n;
1257 
1258   for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
1259     n = n * 10 + *cp - '0';
1260 
1261   return n;
1262 }
1263 
1264 static char *
1265 index(const char *cp, char ch)
1266 {
1267   while (*cp && *cp != ch) cp++;
1268   return *cp ? (char *) cp : 0;
1269 }
1270 
1271 
1272 
1273 inline static int
1274 ite_argnum(struct ite_softc *ip)
1275 {
1276   char ch;
1277   int n;
1278 
1279   /* convert argument string into number */
1280   if (ip->ap == ip->argbuf)
1281     return 1;
1282   ch = *ip->ap;
1283   *ip->ap = 0;
1284   n = atoi (ip->argbuf);
1285   *ip->ap = ch;
1286 
1287   return n;
1288 }
1289 
1290 inline static int
1291 ite_zargnum(struct ite_softc *ip)
1292 {
1293   char ch;
1294   int n;
1295 
1296   /* convert argument string into number */
1297   if (ip->ap == ip->argbuf)
1298     return 0;
1299   ch = *ip->ap;
1300   *ip->ap = 0;
1301   n = atoi (ip->argbuf);
1302   *ip->ap = ch;
1303 
1304   return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
1305 }
1306 
1307 void
1308 ite_putstr(const char *s, int len, dev_t dev)
1309 {
1310 	struct ite_softc *ip;
1311 	int i;
1312 
1313 	ip = getitesp(dev);
1314 
1315 	/* XXX avoid problems */
1316 	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
1317 	  	return;
1318 
1319 	SUBR_CURSOR(ip, START_CURSOROPT);
1320 	for (i = 0; i < len; i++)
1321 		if (s[i])
1322 			iteputchar(s[i], ip);
1323 	SUBR_CURSOR(ip, END_CURSOROPT);
1324 }
1325 
1326 static void
1327 iteprecheckwrap(struct ite_softc *ip)
1328 {
1329 	if (ip->auto_wrap && ip->curx == ip->cols) {
1330 		ip->curx = 0;
1331 		clr_attr(ip, ATTR_INV);
1332 		if (++ip->cury >= ip->bottom_margin + 1) {
1333 			ip->cury = ip->bottom_margin;
1334 			SUBR_CURSOR(ip, MOVE_CURSOR);
1335 			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1336 			ite_clrtoeol(ip);
1337 		} else
1338 			SUBR_CURSOR(ip, MOVE_CURSOR);
1339 	}
1340 }
1341 
1342 static void
1343 itecheckwrap(struct ite_softc *ip)
1344 {
1345 #if 0
1346 	if (++ip->curx == ip->cols) {
1347 		if (ip->auto_wrap) {
1348 			ip->curx = 0;
1349 			clr_attr(ip, ATTR_INV);
1350 			if (++ip->cury >= ip->bottom_margin + 1) {
1351 				ip->cury = ip->bottom_margin;
1352 				SUBR_CURSOR(ip, MOVE_CURSOR);
1353 				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
1354 				ite_clrtoeol(ip);
1355 				return;
1356 			}
1357 		} else
1358 			/* stay there if no autowrap.. */
1359 			ip->curx--;
1360 	}
1361 #else
1362 	if (ip->curx < ip->cols) {
1363 		ip->curx++;
1364 		SUBR_CURSOR(ip, MOVE_CURSOR);
1365 	}
1366 #endif
1367 }
1368 
1369 void
1370 iteputchar(register int c, struct ite_softc *ip)
1371 {
1372 	struct tty *kbd_tty;
1373 	int n, x, y;
1374 	char *cp;
1375 
1376 	if (kbd_ite == NULL)
1377 		kbd_tty = NULL;
1378 	else
1379 		kbd_tty = kbd_ite->tp;
1380 
1381 	if (ip->escape) {
1382 		switch (ip->escape) {
1383 		case ESC:
1384 			switch (c) {
1385 				/*
1386 				 * first 7bit equivalents for the
1387 				 * 8bit control characters
1388 				 */
1389 			case 'D':
1390 				c = IND;
1391 				ip->escape = 0;
1392 				break;
1393 				/*
1394 				 * and fall into the next
1395 				 * switch below (same for all `break')
1396 				 */
1397 			case 'E':
1398 				c = NEL;
1399 				ip->escape = 0;
1400 				break;
1401 			case 'H':
1402 				c = HTS;
1403 				ip->escape = 0;
1404 				break;
1405 			case 'M':
1406 				c = RI;
1407 				ip->escape = 0;
1408 				break;
1409 			case 'N':
1410 				c = SS2;
1411 				ip->escape = 0;
1412 				break;
1413 			case 'O':
1414 				c = SS3;
1415 				ip->escape = 0;
1416 				break;
1417 			case 'P':
1418 				c = DCS;
1419 				ip->escape = 0;
1420 				break;
1421 			case '[':
1422 				c = CSI;
1423 				ip->escape = 0;
1424 				break;
1425 			case '\\':
1426 				c = ST;
1427 				ip->escape = 0;
1428 				break;
1429 			case ']':
1430 				c = OSC;
1431 				ip->escape = 0;
1432 				break;
1433 			case '^':
1434 				c = PM;
1435 				ip->escape = 0;
1436 				break;
1437 			case '_':
1438 				c = APC;
1439 				ip->escape = 0;
1440 				break;
1441 				/* introduces 7/8bit control */
1442 			case ' ':
1443 				/* can be followed by either F or G */
1444 				ip->escape = ' ';
1445 				break;
1446 			/*
1447 			 * a lot of character set selections, not yet
1448 			 * used... 94-character sets:
1449 			 */
1450 			case '(':	/* G0 */
1451 			case ')':	/* G1 */
1452 				ip->escape = c;
1453 				return;
1454 			case '*':	/* G2 */
1455 			case '+':	/* G3 */
1456 			case 'B':	/* ASCII */
1457 			case 'A':	/* ISO latin 1 */
1458 			case '<':	/* user preferred suplemental */
1459 			case '0':	/* dec special graphics */
1460 			/*
1461 			 * 96-character sets:
1462 			 */
1463 			case '-':	/* G1 */
1464 			case '.':	/* G2 */
1465 			case '/':	/* G3 */
1466 			/*
1467 			 * national character sets:
1468 			 */
1469 			case '4':	/* dutch */
1470 			case '5':
1471 			case 'C':	/* finnish */
1472 			case 'R':	/* french */
1473 			case 'Q':	/* french canadian */
1474 			case 'K':	/* german */
1475 			case 'Y':	/* italian */
1476 			case '6':	/* norwegian/danish */
1477 				/*
1478 				 * note: %5 and %6 are not supported (two
1479 				 * chars..)
1480 				 */
1481 				ip->escape = 0;
1482 				/* just ignore for now */
1483 				return;
1484 			/*
1485 			 * locking shift modes (as you might guess, not
1486 			 * yet supported..)
1487 			 */
1488 			case '`':
1489 				ip->GR = ip->G1;
1490 				ip->escape = 0;
1491 				return;
1492 			case 'n':
1493 				ip->GL = ip->G2;
1494 				ip->escape = 0;
1495 				return;
1496 			case '}':
1497 				ip->GR = ip->G2;
1498 				ip->escape = 0;
1499 				return;
1500 			case 'o':
1501 				ip->GL = ip->G3;
1502 				ip->escape = 0;
1503 				return;
1504 			case '|':
1505 				ip->GR = ip->G3;
1506 				ip->escape = 0;
1507 				return;
1508 			case '#':
1509 				/* font width/height control */
1510 				ip->escape = '#';
1511 				return;
1512 			case 'c':
1513 				/* hard terminal reset .. */
1514 				ite_reset(ip);
1515 				SUBR_CURSOR(ip, MOVE_CURSOR);
1516 				ip->escape = 0;
1517 				return;
1518 			case '7':
1519 				ip->save_curx = ip->curx;
1520 				ip->save_cury = ip->cury;
1521 				ip->save_attribute = ip->attribute;
1522 				ip->escape = 0;
1523 				return;
1524 			case '8':
1525 				ip->curx = ip->save_curx;
1526 				ip->cury = ip->save_cury;
1527 				ip->attribute = ip->save_attribute;
1528 				SUBR_CURSOR(ip, MOVE_CURSOR);
1529 				ip->escape = 0;
1530 				return;
1531 			case '=':
1532 				ip->keypad_appmode = 1;
1533 				ip->escape = 0;
1534 				return;
1535 			case '>':
1536 				ip->keypad_appmode = 0;
1537 				ip->escape = 0;
1538 				return;
1539 			case 'Z':	/* request ID */
1540 				/* XXX not clean */
1541 				if (ip->emul_level == EMUL_VT100)
1542 					ite_sendstr("\033[?61;0c");
1543 				else
1544 					ite_sendstr("\033[?63;0c");
1545 				ip->escape = 0;
1546 				return;
1547 			default:
1548 				/*
1549 				 * default catch all for not recognized ESC
1550 				 * sequences
1551 				 */
1552 				ip->escape = 0;
1553 				return;
1554 			}
1555 			break;
1556 		case '(':
1557 		case ')':
1558 			ip->escape = 0;
1559 			return;
1560 		case ' ':
1561 			switch (c) {
1562 			case 'F':
1563 				ip->eightbit_C1 = 0;
1564 				ip->escape = 0;
1565 				return;
1566 			case 'G':
1567 				ip->eightbit_C1 = 1;
1568 				ip->escape = 0;
1569 				return;
1570 			default:
1571 				/* not supported */
1572 				ip->escape = 0;
1573 				return;
1574 			}
1575 			break;
1576 		case '#':
1577 			switch (c) {
1578 			case '5':
1579 				/* single height, single width */
1580 				ip->escape = 0;
1581 				return;
1582 			case '6':
1583 				/* double width, single height */
1584 				ip->escape = 0;
1585 				return;
1586 			case '3':
1587 				/* top half */
1588 				ip->escape = 0;
1589 				return;
1590 			case '4':
1591 				/* bottom half */
1592 				ip->escape = 0;
1593 				return;
1594 			case '8':
1595 				/* screen alignment pattern... */
1596 				alignment_display(ip);
1597 				ip->escape = 0;
1598 				return;
1599 			default:
1600 				ip->escape = 0;
1601 				return;
1602 			}
1603 			break;
1604 		case CSI:
1605 			/* the biggie... */
1606 			switch (c) {
1607 			case '0':
1608 			case '1':
1609 			case '2':
1610 			case '3':
1611 			case '4':
1612 			case '5':
1613 			case '6':
1614 			case '7':
1615 			case '8':
1616 			case '9':
1617 			case ';':
1618 			case '\"':
1619 			case '$':
1620 			case '>':
1621 				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
1622 					*ip->ap++ = c;
1623 				return;
1624 			case BS:
1625 				/*
1626 				 * you wouldn't believe such perversion is
1627 				 * possible? it is.. BS is allowed in between
1628 				 * cursor sequences (at least), according to
1629 				 * vttest..
1630 				 */
1631 				if (--ip->curx < 0)
1632 					ip->curx = 0;
1633 				else
1634 					SUBR_CURSOR(ip, MOVE_CURSOR);
1635 				break;
1636 			case 'p':
1637 				*ip->ap = 0;
1638 				if (!strncmp(ip->argbuf, "61\"", 3))
1639 					ip->emul_level = EMUL_VT100;
1640 				else if (!strncmp(ip->argbuf, "63;1\"", 5)
1641 				    || !strncmp(ip->argbuf, "62;1\"", 5))
1642 					ip->emul_level = EMUL_VT300_7;
1643 				else
1644 					ip->emul_level = EMUL_VT300_8;
1645 				ip->escape = 0;
1646 				return;
1647 			case '?':
1648 				*ip->ap = 0;
1649 				ip->escape = '?';
1650 				ip->ap = ip->argbuf;
1651 				return;
1652 			case 'c':
1653 				*ip->ap = 0;
1654 				if (ip->argbuf[0] == '>') {
1655 					ite_sendstr("\033[>24;0;0;0c");
1656 				} else
1657 					switch (ite_zargnum(ip)) {
1658 					case 0:
1659 						/*
1660 						 * primary DA request, send
1661 						 * primary DA response
1662 						 */
1663 						if (ip->emul_level
1664 						    == EMUL_VT100)
1665 							ite_sendstr(
1666 							    "\033[?1;1c");
1667 						else
1668 							ite_sendstr(
1669 							    "\033[?63;1c");
1670 						break;
1671 					}
1672 				ip->escape = 0;
1673 				return;
1674 			case 'n':
1675 				switch (ite_zargnum(ip)) {
1676 				case 5:
1677 					/* no malfunction */
1678 					ite_sendstr("\033[0n");
1679 					break;
1680 				case 6:
1681 					/* cursor position report */
1682 					sprintf(ip->argbuf, "\033[%d;%dR",
1683 					    ip->cury + 1, ip->curx + 1);
1684 					ite_sendstr(ip->argbuf);
1685 					break;
1686 				}
1687 				ip->escape = 0;
1688 				return;
1689 			case 'x':
1690 				switch (ite_zargnum(ip)) {
1691 				case 0:
1692 					/* Fake some terminal parameters.  */
1693 					ite_sendstr("\033[2;1;1;112;112;1;0x");
1694 					break;
1695 				case 1:
1696 					ite_sendstr("\033[3;1;1;112;112;1;0x");
1697 					break;
1698 				}
1699 				ip->escape = 0;
1700 				return;
1701 			case 'g':
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 				ip->escape = 0;
1713 				return;
1714 			case 'h':
1715 			case 'l':
1716 				n = ite_zargnum(ip);
1717 				switch (n) {
1718 				case 4:
1719 					/* insert/replace mode */
1720 					ip->imode = (c == 'h');
1721 					break;
1722 				case 20:
1723 					ip->linefeed_newline = (c == 'h');
1724 					break;
1725 				}
1726 				ip->escape = 0;
1727 				return;
1728 			case 'M':
1729 				ite_dnline(ip, ite_argnum(ip));
1730 				ip->escape = 0;
1731 				return;
1732 			case 'L':
1733 				ite_inline(ip, ite_argnum(ip));
1734 				ip->escape = 0;
1735 				return;
1736 			case 'P':
1737 				ite_dnchar(ip, ite_argnum(ip));
1738 				ip->escape = 0;
1739 				return;
1740 			case '@':
1741 				ite_inchar(ip, ite_argnum(ip));
1742 				ip->escape = 0;
1743 				return;
1744 			case 'G':
1745 				/*
1746 				 * this one was *not* in my vt320 manual but in
1747 				 * a vt320 termcap entry.. who is right? It's
1748 				 * supposed to set the horizontal cursor
1749 				 * position.
1750 				 */
1751 				*ip->ap = 0;
1752 				x = atoi(ip->argbuf);
1753 				if (x)
1754 					x--;
1755 				ip->curx = min(x, ip->cols - 1);
1756 				ip->escape = 0;
1757 				SUBR_CURSOR(ip, MOVE_CURSOR);
1758 				clr_attr(ip, ATTR_INV);
1759 				return;
1760 			case 'd':
1761 				/*
1762 				 * same thing here, this one's for setting the
1763 				 * absolute vertical cursor position. Not
1764 				 * documented...
1765 				 */
1766 				*ip->ap = 0;
1767 				y = atoi(ip->argbuf);
1768 				if (y)
1769 					y--;
1770 				if (ip->inside_margins)
1771 					y += ip->top_margin;
1772 				ip->cury = min(y, ip->rows - 1);
1773 				ip->escape = 0;
1774 				snap_cury(ip);
1775 				SUBR_CURSOR(ip, MOVE_CURSOR);
1776 				clr_attr(ip, ATTR_INV);
1777 				return;
1778 			case 'H':
1779 			case 'f':
1780 				*ip->ap = 0;
1781 				y = atoi(ip->argbuf);
1782 				x = 0;
1783 				cp = index(ip->argbuf, ';');
1784 				if (cp)
1785 					x = atoi(cp + 1);
1786 				if (x)
1787 					x--;
1788 				if (y)
1789 					y--;
1790 				if (ip->inside_margins)
1791 					y += ip->top_margin;
1792 				ip->cury = min(y, ip->rows - 1);
1793 				ip->curx = min(x, ip->cols - 1);
1794 				ip->escape = 0;
1795 				snap_cury(ip);
1796 				SUBR_CURSOR(ip, MOVE_CURSOR);
1797 				clr_attr(ip, ATTR_INV);
1798 				return;
1799 			case 'A':
1800 				n = ite_argnum(ip);
1801 				n = ip->cury - (n ? n : 1);
1802 				if (n < 0)
1803 					n = 0;
1804 				if (ip->inside_margins)
1805 					n = max(ip->top_margin, n);
1806 				else if (n == ip->top_margin - 1)
1807 					/*
1808 					 * allow scrolling outside region, but
1809 					 * don't scroll out of active region
1810 					 * without explicit CUP
1811 					 */
1812 					n = ip->top_margin;
1813 				ip->cury = n;
1814 				ip->escape = 0;
1815 				SUBR_CURSOR(ip, MOVE_CURSOR);
1816 				clr_attr(ip, ATTR_INV);
1817 				return;
1818 			case 'B':
1819 				n = ite_argnum(ip);
1820 				n = ip->cury + (n ? n : 1);
1821 				n = min(ip->rows - 1, n);
1822 				if (ip->inside_margins)
1823 					n = min(ip->bottom_margin, n);
1824 				else if (n == ip->bottom_margin + 1)
1825 					/*
1826 					 * allow scrolling outside region, but
1827 					 * don't scroll out of active region
1828 					 * without explicit CUP
1829 					 */
1830 					n = ip->bottom_margin;
1831 				ip->cury = n;
1832 				ip->escape = 0;
1833 				SUBR_CURSOR(ip, MOVE_CURSOR);
1834 				clr_attr(ip, ATTR_INV);
1835 				return;
1836 			case 'C':
1837 				n = ite_argnum(ip);
1838 				n = n ? n : 1;
1839 				ip->curx = min(ip->curx + n, ip->cols - 1);
1840 				ip->escape = 0;
1841 				SUBR_CURSOR(ip, MOVE_CURSOR);
1842 				clr_attr(ip, ATTR_INV);
1843 				return;
1844 			case 'D':
1845 				n = ite_argnum(ip);
1846 				n = n ? n : 1;
1847 				n = ip->curx - n;
1848 				ip->curx = n >= 0 ? n : 0;
1849 				ip->escape = 0;
1850 				SUBR_CURSOR(ip, MOVE_CURSOR);
1851 				clr_attr(ip, ATTR_INV);
1852 				return;
1853 			case 'J':
1854 				*ip->ap = 0;
1855 				n = ite_zargnum(ip);
1856 				if (n == 0)
1857 					ite_clrtoeos(ip);
1858 				else if (n == 1)
1859 					ite_clrtobos(ip);
1860 				else if (n == 2)
1861 					ite_clrscreen(ip);
1862 				ip->escape = 0;
1863 				return;
1864 			case 'K':
1865 				n = ite_zargnum(ip);
1866 				if (n == 0)
1867 					ite_clrtoeol(ip);
1868 				else if (n == 1)
1869 					ite_clrtobol(ip);
1870 				else if (n == 2)
1871 					ite_clrline(ip);
1872 				ip->escape = 0;
1873 				return;
1874 			case 'X':
1875 				n = ite_argnum(ip) - 1;
1876 				n = min(n, ip->cols - 1 - ip->curx);
1877 				for (; n >= 0; n--) {
1878 					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
1879 					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
1880 				}
1881 				ip->escape = 0;
1882 				return;
1883 			case '}':
1884 			case '`':
1885 				/* status line control */
1886 				ip->escape = 0;
1887 				return;
1888 			case 'r':
1889 				*ip->ap = 0;
1890 				x = atoi(ip->argbuf);
1891 				x = x ? x : 1;
1892 				y = ip->rows;
1893 				cp = index(ip->argbuf, ';');
1894 				if (cp) {
1895 					y = atoi(cp + 1);
1896 					y = y ? y : ip->rows;
1897 				}
1898 				if (y - x < 2) {
1899 					/*
1900 					 * if illegal scrolling region, reset
1901 					 * to defaults
1902 					 */
1903 					x = 1;
1904 					y = ip->rows;
1905 				}
1906 				x--;
1907 				y--;
1908 				ip->top_margin = min(x, ip->rows - 1);
1909 				ip->bottom_margin = min(y, ip->rows - 1);
1910 				if (ip->inside_margins) {
1911 					ip->cury = ip->top_margin;
1912 					ip->curx = 0;
1913 					SUBR_CURSOR(ip, MOVE_CURSOR);
1914 				}
1915 				ip->escape = 0;
1916 				return;
1917 			case 'm':
1918 				/* big attribute setter/resetter */
1919 				{ char *cp;
1920 				*ip->ap = 0;
1921 				/* kludge to make CSIm work (== CSI0m) */
1922 				if (ip->ap == ip->argbuf)
1923 					ip->ap++;
1924 				for (cp = ip->argbuf; cp < ip->ap;) {
1925 					switch (*cp) {
1926 					case 0:
1927 					case '0':
1928 						clr_attr(ip, ATTR_ALL);
1929 						cp++;
1930 						break;
1931 
1932 					case '1':
1933 						set_attr(ip, ATTR_BOLD);
1934 						cp++;
1935 						break;
1936 
1937 					case '2':
1938 						switch (cp[1]) {
1939 						case '2':
1940 							clr_attr(ip, ATTR_BOLD);
1941 							cp += 2;
1942 							break;
1943 
1944 						case '4':
1945 							clr_attr(ip, ATTR_UL);
1946 							cp += 2;
1947 							break;
1948 
1949 						case '5':
1950 							clr_attr(ip, ATTR_BLINK);
1951 							cp += 2;
1952 							break;
1953 
1954 						case '7':
1955 							clr_attr(ip, ATTR_INV);
1956 							cp += 2;
1957 							break;
1958 
1959 						default:
1960 							cp++;
1961 							break;
1962 						}
1963 						break;
1964 
1965 					case '4':
1966 						set_attr(ip, ATTR_UL);
1967 						cp++;
1968 						break;
1969 
1970 					case '5':
1971 						set_attr(ip, ATTR_BLINK);
1972 						cp++;
1973 						break;
1974 
1975 					case '7':
1976 						set_attr(ip, ATTR_INV);
1977 						cp++;
1978 						break;
1979 
1980 					default:
1981 						cp++;
1982 						break;
1983 					}
1984 				}
1985 				ip->escape = 0;
1986 				return; }
1987 			case 'u':
1988 				/* DECRQTSR */
1989 				ite_sendstr("\033P\033\\");
1990 				ip->escape = 0;
1991 				return;
1992 			default:
1993 				ip->escape = 0;
1994 				return;
1995 			}
1996 			break;
1997 		case '?':	/* CSI ? */
1998 			switch (c) {
1999 			case '0':
2000 			case '1':
2001 			case '2':
2002 			case '3':
2003 			case '4':
2004 			case '5':
2005 			case '6':
2006 			case '7':
2007 			case '8':
2008 			case '9':
2009 			case ';':
2010 			case '\"':
2011 			case '$':
2012 				/*
2013 				 * Don't fill the last character;
2014 				 * it's needed.
2015 				 * XXX yeah, where ??
2016 				 */
2017 				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
2018 					*ip->ap++ = c;
2019 				return;
2020 			case 'n':
2021 				*ip->ap = 0;
2022 				if (ip->ap == &ip->argbuf[2]) {
2023 					if (!strncmp(ip->argbuf, "15", 2))
2024 						/* printer status: no printer */
2025 						ite_sendstr("\033[13n");
2026 
2027 					else if (!strncmp(ip->argbuf, "25", 2))
2028 						/* udk status */
2029 						ite_sendstr("\033[20n");
2030 
2031 					else if (!strncmp(ip->argbuf, "26", 2))
2032 						/* keyboard dialect: US */
2033 						ite_sendstr("\033[27;1n");
2034 				}
2035 				ip->escape = 0;
2036 				return;
2037 			case 'h':
2038 			case 'l':
2039 				n = ite_zargnum(ip);
2040 				switch (n) {
2041 				case 1:
2042 					ip->cursor_appmode = (c == 'h');
2043 					break;
2044 				case 3:
2045 					/* 132/80 columns (132 == 'h') */
2046 					break;
2047 				case 4:	/* smooth scroll */
2048 					break;
2049 				case 5:
2050 					/*
2051 					 * light background (=='h') /dark
2052 					 * background(=='l')
2053 					 */
2054 					break;
2055 				case 6:	/* origin mode */
2056 					ip->inside_margins = (c == 'h');
2057 					ip->curx = 0;
2058 					ip->cury = ip->inside_margins ?
2059 					    ip->top_margin : 0;
2060 					SUBR_CURSOR(ip, MOVE_CURSOR);
2061 					break;
2062 				case 7:	/* auto wraparound */
2063 					ip->auto_wrap = (c == 'h');
2064 					break;
2065 				case 8:	/* keyboard repeat */
2066 					ip->key_repeat = (c == 'h');
2067 					break;
2068 				case 20:	/* newline mode */
2069 					ip->linefeed_newline = (c == 'h');
2070 					break;
2071 				case 25:	/* cursor on/off */
2072 					SUBR_CURSOR(ip, (c == 'h') ?
2073 					    DRAW_CURSOR : ERASE_CURSOR);
2074 					break;
2075 				}
2076 				ip->escape = 0;
2077 				return;
2078 			default:
2079 				ip->escape = 0;
2080 				return;
2081 			}
2082 			break;
2083 		default:
2084 			ip->escape = 0;
2085 			return;
2086 		}
2087 	}
2088 	switch (c) {
2089 	case VT:		/* VT is treated like LF */
2090 	case FF:		/* so is FF */
2091 	case LF:
2092 		/*
2093 		 * cr->crlf distinction is done here, on output, not on input!
2094 		 */
2095 		if (ip->linefeed_newline)
2096 			ite_crlf(ip);
2097 		else
2098 			ite_lf(ip);
2099 		break;
2100 	case CR:
2101 		ite_cr(ip);
2102 		break;
2103 	case BS:
2104 		if (--ip->curx < 0)
2105 			ip->curx = 0;
2106 		else
2107 			SUBR_CURSOR(ip, MOVE_CURSOR);
2108 		break;
2109 	case HT:
2110 		for (n = ip->curx + 1; n < ip->cols; n++) {
2111 			if (ip->tabs[n]) {
2112 				ip->curx = n;
2113 				SUBR_CURSOR(ip, MOVE_CURSOR);
2114 				break;
2115 			}
2116 		}
2117 		break;
2118 	case BEL:
2119 		if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty
2120 #ifdef DRACO
2121 		    && !is_draco()
2122 #endif
2123 		    )
2124 			ite_bell();
2125 		break;
2126 	case SO:
2127 		ip->GL = ip->G1;
2128 		break;
2129 	case SI:
2130 		ip->GL = ip->G0;
2131 		break;
2132 	case ENQ:
2133 		/* send answer-back message !! */
2134 		break;
2135 	case CAN:
2136 		ip->escape = 0;	/* cancel any escape sequence in progress */
2137 		break;
2138 	case SUB:
2139 		ip->escape = 0;	/* dito, but see below */
2140 		/* should also display a reverse question mark!! */
2141 		break;
2142 	case ESC:
2143 		ip->escape = ESC;
2144 		break;
2145 	/*
2146 	 * now it gets weird.. 8bit control sequences..
2147 	 */
2148 	case IND:
2149 		/* index: move cursor down, scroll */
2150 		ite_lf(ip);
2151 		break;
2152 	case NEL:
2153 		/* next line. next line, first pos. */
2154 		ite_crlf(ip);
2155 		break;
2156 	case HTS:
2157 		/* set horizontal tab */
2158 		if (ip->curx < ip->cols)
2159 			ip->tabs[ip->curx] = 1;
2160 		break;
2161 	case RI:
2162 		/* reverse index */
2163 		ite_rlf(ip);
2164 		break;
2165 	case SS2:
2166 		/* go into G2 for one character */
2167 		/* not yet supported */
2168 		break;
2169 	case SS3:
2170 		/* go into G3 for one character */
2171 		break;
2172 	case DCS:
2173 		/* device control string introducer */
2174 		ip->escape = DCS;
2175 		ip->ap = ip->argbuf;
2176 		break;
2177 	case CSI:
2178 		/* control sequence introducer */
2179 		ip->escape = CSI;
2180 		ip->ap = ip->argbuf;
2181 		break;
2182 	case ST:
2183 		/* string terminator */
2184 		/* ignore, if not used as terminator */
2185 		break;
2186 	case OSC:
2187 		/*
2188 		 * introduces OS command. Ignore everything
2189 		 * upto ST
2190 		 */
2191 		ip->escape = OSC;
2192 		break;
2193 	case PM:
2194 		/* privacy message, ignore everything upto ST */
2195 		ip->escape = PM;
2196 		break;
2197 	case APC:
2198 		/*
2199 		 * application program command, ignore * everything upto ST
2200 		 */
2201 		ip->escape = APC;
2202 		break;
2203 	default:
2204 		if ((c & 0x7f) < ' ' || c == DEL)
2205 			break;
2206 		if (ip->imode)
2207 			ite_inchar(ip, 1);
2208 		iteprecheckwrap(ip);
2209 #ifdef DO_WEIRD_ATTRIBUTES
2210 		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
2211 			attrset(ip, ATTR_INV);
2212 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
2213 		} else
2214 			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
2215 #else
2216 		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
2217 #endif
2218 		SUBR_CURSOR(ip, DRAW_CURSOR);
2219 		itecheckwrap(ip);
2220 		break;
2221 	}
2222 }
2223 
2224