initial import of NetBSD tree

1 files changed, 2262 insertions, 0 deletions

diff --git a/sys/arch/amiga/dev/ite.c b/sys/arch/amiga/dev/ite.c
new file mode 100644
index 00000000000..a85b3864cc8
--- /dev/null
+++ b/sys/arch/amiga/dev/ite.c
@@ -0,0 +1,2262 @@
+/*	$NetBSD: ite.c,v 1.32 1995/10/09 15:20:30 chopps Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: Utah Hdr: ite.c 1.1 90/07/09
+ *	@(#)ite.c 7.6 (Berkeley) 5/16/91
+ */
+
+/*
+ * ite - bitmaped terminal.
+ * Supports VT200, a few terminal features will be unavailable until
+ * the system actually probes the device (i.e. not after consinit())
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/ioctl.h>
+#include <sys/tty.h>
+#include <sys/termios.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <dev/cons.h>
+#include <amiga/amiga/cc.h>
+#include <amiga/amiga/kdassert.h>
+#include <amiga/amiga/color.h>	/* DEBUG */
+#include <amiga/amiga/device.h>
+#include <amiga/amiga/isr.h>
+#include <amiga/dev/iteioctl.h>
+#include <amiga/dev/itevar.h>
+#include <amiga/dev/kbdmap.h>
+#include <amiga/dev/grfioctl.h>
+#include <amiga/dev/grfvar.h>
+
+#include "grfcc.h"
+
+/*
+ * XXX go ask sys/kern/tty.c:ttselect()
+ */
+#include "grf.h"
+struct tty *ite_tty[NGRF];
+
+#define ITEUNIT(dev)	(minor(dev))
+
+#define SUBR_INIT(ip)		(ip)->grf->g_iteinit(ip)
+#define SUBR_DEINIT(ip)		(ip)->grf->g_itedeinit(ip)
+#define SUBR_PUTC(ip,c,dy,dx,m)	(ip)->grf->g_iteputc(ip,c,dy,dx,m)
+#define SUBR_CURSOR(ip,flg)	(ip)->grf->g_itecursor(ip,flg)
+#define SUBR_CLEAR(ip,sy,sx,h,w)	(ip)->grf->g_iteclear(ip,sy,sx,h,w)
+#define SUBR_SCROLL(ip,sy,sx,count,dir)	\
+    (ip)->grf->g_itescroll(ip,sy,sx,count,dir)
+
+u_int	ite_confunits;			/* configured units */
+
+int	start_repeat_timeo = 30;	/* first repeat after x s/100 */
+int	next_repeat_timeo = 10;		/* next repeat after x s/100 */
+
+int	ite_default_wrap = 1;		/* you want vtxxx-nam, binpatch */
+
+struct	ite_softc con_itesoftc;
+u_char	cons_tabs[MAX_TABS];
+
+struct ite_softc *kbd_ite;
+int kbd_init;
+
+/* audio bell stuff */
+u_int bvolume = 10;
+u_int bpitch = 660;
+u_int bmsec = 75;
+	
+static char *bsamplep;
+static char sample[20] = {
+	0,39,75,103,121,127,121,103,75,39,0,
+	-39,-75,-103,-121,-127,-121,-103,-75,-39
+};
+
+static char *index __P((const char *, char));
+static int inline atoi __P((const char *));
+static void ite_sifilter __P((void *, void *));
+void iteputchar __P((int c, struct ite_softc *ip));
+void ite_putstr __P((const char * s, int len, dev_t dev));
+void iteattach __P((struct device *, struct device *, void *));
+int itematch __P((struct device *, struct cfdata *, void *));
+
+struct cfdriver itecd = {
+	NULL, "ite", (cfmatch_t)itematch, iteattach, DV_DULL,
+	sizeof(struct ite_softc), NULL, 0 };
+
+int
+itematch(pdp, cdp, auxp)
+	struct device *pdp;
+	struct cfdata *cdp;
+	void *auxp;
+{
+	struct grf_softc *gp;
+	int maj;
+	
+	gp = auxp;
+	/*
+	 * all that our mask allows (more than enough no one 
+	 * has > 32 monitors for text consoles on one machine)
+	 */
+	if (cdp->cf_unit >= sizeof(ite_confunits) * NBBY)
+		return(0);
+	/*
+	 * XXX
+	 * normally this would be done in attach, however
+	 * during early init we do not have a device pointer
+	 * and thus no unit number.
+	 */
+	for(maj = 0; maj < nchrdev; maj++)
+		if (cdevsw[maj].d_open == iteopen)
+			break;
+	gp->g_itedev = makedev(maj, cdp->cf_unit);
+	return(1);
+}
+
+void
+iteattach(pdp, dp, auxp)
+	struct device *pdp, *dp;
+	void *auxp;
+{
+	extern int hz;
+	struct grf_softc *gp;
+	struct ite_softc *ip;
+	int s;
+
+	gp = (struct grf_softc *)auxp;
+
+	/*
+	 * mark unit as attached (XXX see itematch)
+	 */
+	ite_confunits |= 1 << ITEUNIT(gp->g_itedev);
+
+	if (dp) {
+		ip = (struct ite_softc *)dp;
+
+		s = spltty();
+		if (con_itesoftc.grf != NULL &&
+		    con_itesoftc.grf->g_unit == gp->g_unit) {
+			/*
+			 * console reinit copy params over.
+			 * and console always gets keyboard
+			 */
+			bcopy(&con_itesoftc.grf, &ip->grf,
+			    (char *)&ip[1] - (char *)&ip->grf);
+			con_itesoftc.grf = NULL;
+			kbd_ite = ip;
+		}
+		ip->grf = gp;
+		splx(s);
+
+		alloc_sicallback();
+		iteinit(gp->g_itedev);
+		printf(": rows %d cols %d", ip->rows, ip->cols);
+		printf(" repeat at (%d/100)s next at (%d/100)s",
+		    start_repeat_timeo, next_repeat_timeo);
+
+		if (kbd_ite == NULL)
+			kbd_ite = ip;
+		if (kbd_ite == ip)
+			printf(" has keyboard");
+		printf("\n");
+	} else {
+		if (con_itesoftc.grf != NULL &&
+		    con_itesoftc.grf->g_conpri > gp->g_conpri)
+			return;
+		con_itesoftc.grf = gp;
+		con_itesoftc.tabs = cons_tabs;
+	}
+}
+
+struct ite_softc *
+getitesp(dev)
+	dev_t dev;
+{
+	if (amiga_realconfig && con_itesoftc.grf == NULL)
+		return(itecd.cd_devs[ITEUNIT(dev)]);
+
+	if (con_itesoftc.grf == NULL)
+		panic("no ite_softc for console");
+	return(&con_itesoftc);
+}
+
+/*
+ * cons.c entry points into ite device.
+ */
+
+/*
+ * Return a priority in consdev->cn_pri field highest wins.  This function
+ * is called before any devices have been probed.
+ */
+void
+itecnprobe(cd)
+	struct consdev *cd;
+{
+	/*
+	 * bring graphics layer up.
+	 */
+	config_console();
+
+	/* 
+	 * return priority of the best ite (already picked from attach)
+	 * or CN_DEAD.
+	 */
+	if (con_itesoftc.grf == NULL)
+		cd->cn_pri = CN_DEAD;
+	else {
+		cd->cn_pri = con_itesoftc.grf->g_conpri;
+		cd->cn_dev = con_itesoftc.grf->g_itedev;
+	}
+}
+
+/* audio bell stuff */
+void
+init_bell()
+{
+	short i;
+
+	if (bsamplep != NULL)
+		return;
+	bsamplep = alloc_chipmem(20);
+	if (bsamplep == NULL)
+		panic("no chipmem for ite_bell"); 
+
+	bcopy(sample, bsamplep, 20);
+}
+
+void
+ite_bell()
+{
+	u_int clock;
+	u_int period;
+	u_int count;
+
+	clock = 3579545; 	/* PAL 3546895 */
+
+	/*
+	 * the number of clock ticks per sample byte must be > 124
+	 * ergo bpitch must be < clock / 124*20 
+	 * i.e. ~1443, 1300 to be safe (PAL etc.). also not zero obviously
+	 */
+	period = clock / (bpitch * 20);
+	count = bmsec * bpitch / 1000;
+
+	play_sample(10, PREP_DMA_MEM(bsamplep), period, bvolume, 0x3, count);
+}
+
+void
+itecninit(cd)
+	struct consdev *cd;
+{
+	struct ite_softc *ip;
+
+	ip = getitesp(cd->cn_dev);
+	iteinit(cd->cn_dev);
+	ip->flags |= ITE_ACTIVE | ITE_ISCONS;
+
+	init_bell();
+}
+
+/*
+ * ite_cnfinish() is called in ite_init() when the device is
+ * being probed in the normal fasion, thus we can finish setting
+ * up this ite now that the system is more functional.
+ */
+void
+ite_cnfinish(ip)
+	struct ite_softc *ip;
+{
+	static int done;
+
+	if (done)
+		return;
+	done = 1;
+}
+
+int
+itecngetc(dev)
+	dev_t dev;
+{
+	int c;
+
+	/* XXX this should be moved */
+	if (!kbd_init) {
+		kbd_init = 1;
+		kbdenable();
+	}
+	do {
+		c = kbdgetcn();
+		c = ite_cnfilter(c, ITEFILT_CONSOLE);
+	} while (c == -1);
+	return (c);
+}
+
+void
+itecnputc(dev, c)
+	dev_t dev;
+	int c;
+{
+	static int paniced;
+	struct ite_softc *ip;
+	char ch;
+
+	ip = getitesp(dev);
+	ch = c;
+
+	if (panicstr && !paniced &&
+	    (ip->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) {
+		(void)ite_on(dev, 3);
+		paniced = 1;
+	}
+	iteputchar(ch, ip);
+}
+
+void
+itecnpollc(dev, on)
+	dev_t dev;
+	int on;
+{
+
+}
+
+/*
+ * standard entry points to the device.
+ */
+
+/* 
+ * iteinit() is the standard entry point for initialization of
+ * an ite device, it is also called from ite_cninit().
+ *
+ */
+void
+iteinit(dev)
+	dev_t dev;
+{
+	struct ite_softc *ip;
+
+	ip = getitesp(dev);
+	if (ip->flags & ITE_INITED)
+		return;
+	bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
+
+	ip->cursorx = 0;
+	ip->cursory = 0;
+	SUBR_INIT(ip);
+	SUBR_CURSOR(ip, DRAW_CURSOR);
+	if (ip->tabs == NULL)
+		ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK);
+	ite_reset(ip);
+	ip->flags |= ITE_INITED;
+}
+
+int
+iteopen(dev, mode, devtype, p)
+	dev_t dev;
+	int mode, devtype;
+	struct proc *p;
+{
+	struct ite_softc *ip;
+	struct tty *tp;
+	int error, first, unit;
+
+	unit = ITEUNIT(dev);
+	first = 0;
+	
+	if (((1 << unit) & ite_confunits) == 0)
+		return (ENXIO);
+	
+	ip = getitesp(dev);
+
+	if (ip->tp == NULL)
+		tp = ite_tty[unit] = ip->tp = ttymalloc();
+	else
+		tp = ip->tp;
+	if ((tp->t_state & (TS_ISOPEN | TS_XCLUDE)) == (TS_ISOPEN | TS_XCLUDE)
+	    && p->p_ucred->cr_uid != 0)
+		return (EBUSY);
+	if ((ip->flags & ITE_ACTIVE) == 0) {
+		error = ite_on(dev, 0);
+		if (error)
+			return (error);
+		first = 1;
+	}
+	tp->t_oproc = itestart;
+	tp->t_param = ite_param;
+	tp->t_dev = dev;
+	if ((tp->t_state & TS_ISOPEN) == 0) {
+		ttychars(tp);
+		tp->t_iflag = TTYDEF_IFLAG;
+		tp->t_oflag = TTYDEF_OFLAG;
+		tp->t_cflag = TTYDEF_CFLAG;
+		tp->t_lflag = TTYDEF_LFLAG;
+		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
+		tp->t_state = TS_WOPEN | TS_CARR_ON;
+		ttsetwater(tp);
+	}
+	error = (*linesw[tp->t_line].l_open) (dev, tp);
+	if (error == 0) {
+		tp->t_winsize.ws_row = ip->rows;
+		tp->t_winsize.ws_col = ip->cols;
+		if (!kbd_init) {
+			kbd_init = 1;
+			kbdenable();
+		}
+	} else if (first)
+		ite_off(dev, 0);
+	return (error);
+}
+
+int
+iteclose(dev, flag, mode, p)
+	dev_t dev;
+	int flag, mode;
+	struct proc *p;
+{
+	struct tty *tp;
+
+	tp = getitesp(dev)->tp;
+
+	KDASSERT(tp);
+	(*linesw[tp->t_line].l_close) (tp, flag);
+	ttyclose(tp);
+	ite_off(dev, 0);
+	return (0);
+}
+
+int
+iteread(dev, uio, flag)
+	dev_t dev;
+	struct uio *uio;
+	int flag;
+{
+	struct tty *tp;
+
+	tp = getitesp(dev)->tp;
+
+	KDASSERT(tp);
+	return ((*linesw[tp->t_line].l_read) (tp, uio, flag));
+}
+
+int
+itewrite(dev, uio, flag)
+	dev_t dev;
+	struct uio *uio;
+	int flag;
+{
+	struct tty *tp;
+
+	tp = getitesp(dev)->tp;
+
+	KDASSERT(tp);
+	return ((*linesw[tp->t_line].l_write) (tp, uio, flag));
+}
+
+struct tty *
+itetty(dev)
+	dev_t dev;
+{
+	return (ite_tty[ITEUNIT(dev)]);
+}
+
+int
+itestop(tp, flag)
+	struct tty *tp;
+	int flag;
+{
+
+}
+
+int
+iteioctl(dev, cmd, addr, flag, p)
+	dev_t dev;
+	u_long cmd;
+	caddr_t addr;
+	int flag;
+	struct proc *p;
+{
+	struct iterepeat *irp;
+	struct ite_softc *ip;
+	struct itebell *ib;
+	struct tty *tp;
+	int error;
+	
+	ip = getitesp(dev);
+	tp = ip->tp;
+
+	KDASSERT(tp);
+
+	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, addr, flag, p);
+	if (error >= 0)
+		return (error);
+	error = ttioctl(tp, cmd, addr, flag, p);
+	if (error >= 0)
+		return (error);
+
+	switch (cmd) {
+	case ITEIOCGBELL:
+		ib = (struct itebell *)addr;
+		ib->volume = bvolume;
+		ib->pitch = bpitch;
+		ib->msec = bmsec;
+		return (0);
+	case ITEIOCSBELL:
+		ib = (struct itebell *)addr;
+
+		if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH ||
+		    ib->volume > MAXBVOLUME || ib->msec > MAXBTIME)
+			return (EINVAL);
+		bvolume = ib->volume;
+		bpitch = ib->pitch;
+		bmsec = ib->msec;
+		return (0);
+	case ITEIOCSKMAP:
+		if (addr == 0)
+			return(EFAULT);
+		bcopy(addr, &kbdmap, sizeof(struct kbdmap));
+		return(0);
+	case ITEIOCGKMAP:
+		if (addr == NULL)
+			return(EFAULT);
+		bcopy(&kbdmap, addr, sizeof(struct kbdmap));
+		return(0);
+	case ITEIOCGREPT:
+		irp = (struct iterepeat *)addr;
+		irp->start = start_repeat_timeo;
+		irp->next = next_repeat_timeo;
+		return (0);
+	case ITEIOCSREPT:
+		irp = (struct iterepeat *)addr;
+		if (irp->start < ITEMINREPEAT && irp->next < ITEMINREPEAT)
+			return(EINVAL);
+		start_repeat_timeo = irp->start;
+		next_repeat_timeo = irp->next;
+		return(0);
+	}
+#if NGRFCC > 0
+	/* XXX */
+	if (minor(dev) == 0) {
+		error = ite_grf_ioctl(ip, cmd, addr, flag, p);
+		if (error >= 0)
+			return (error);
+	}
+#endif
+	return (ENOTTY);
+}
+
+void
+itestart(tp)
+	struct tty *tp;
+{
+	struct clist *rbp;
+	struct ite_softc *ip;
+	u_char buf[ITEBURST];
+	int s, len, n;
+
+	ip = getitesp(tp->t_dev);
+
+	KDASSERT(tp);
+
+	s = spltty(); {
+		if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
+			goto out;
+
+		tp->t_state |= TS_BUSY;
+		rbp = &tp->t_outq;
+		
+		len = q_to_b(rbp, buf, ITEBURST);
+	} splx(s);
+
+	/* Here is a really good place to implement pre/jumpscroll() */
+	ite_putstr(buf, len, tp->t_dev);
+
+	s = spltty(); {
+		tp->t_state &= ~TS_BUSY;
+		/* we have characters remaining. */
+		if (rbp->c_cc) {
+			tp->t_state |= TS_TIMEOUT;
+			timeout(ttrstrt, tp, 1);
+		}
+		/* wakeup we are below */
+		if (rbp->c_cc <= tp->t_lowat) {
+			if (tp->t_state & TS_ASLEEP) {
+				tp->t_state &= ~TS_ASLEEP;
+				wakeup((caddr_t) rbp);
+			}
+			selwakeup(&tp->t_wsel);
+		}
+	      out:
+	} splx(s);
+}
+
+int
+ite_on(dev, flag)
+	dev_t dev;
+	int flag;
+{
+	struct ite_softc *ip;
+	int unit;
+
+	unit = ITEUNIT(dev);
+	if (((1 << unit) & ite_confunits) == 0)
+		return (ENXIO);
+	
+	ip = getitesp(dev); 
+
+	/* force ite active, overriding graphics mode */
+	if (flag & 1) {
+		ip->flags |= ITE_ACTIVE;
+		ip->flags &= ~(ITE_INGRF | ITE_INITED);
+	}
+	/* leave graphics mode */
+	if (flag & 2) {
+		ip->flags &= ~ITE_INGRF;
+		if ((ip->flags & ITE_ACTIVE) == 0)
+			return (0);
+	}
+	ip->flags |= ITE_ACTIVE;
+	if (ip->flags & ITE_INGRF)
+		return (0);
+	iteinit(dev);
+	return (0);
+}
+
+int
+ite_off(dev, flag)
+	dev_t dev;
+	int flag;
+{
+	struct ite_softc *ip;
+
+	ip = getitesp(dev);
+	if (flag & 2)
+		ip->flags |= ITE_INGRF;
+	if ((ip->flags & ITE_ACTIVE) == 0)
+		return;
+	if ((flag & 1) ||
+	    (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED)
+		SUBR_DEINIT(ip);
+	if ((flag & 2) == 0)	/* XXX hmm grfon() I think wants this to  go inactive. */
+		ip->flags &= ~ITE_ACTIVE;
+}
+
+/* XXX called after changes made in underlying grf layer. */
+/* I want to nuke this */
+void
+ite_reinit(dev)
+	dev_t dev;
+{
+	struct ite_softc *ip;
+
+	ip = getitesp(dev);
+	ip->flags &= ~ITE_INITED;
+	iteinit(dev);
+}
+
+int
+ite_param(tp, t)
+	struct tty *tp;
+	struct termios *t;
+{
+	tp->t_ispeed = t->c_ispeed;
+	tp->t_ospeed = t->c_ospeed;
+	tp->t_cflag = t->c_cflag;
+	return (0);
+}
+
+void
+ite_reset(ip)
+	struct ite_softc *ip;
+{
+	int i;
+
+	ip->curx = 0;
+	ip->cury = 0;
+	ip->attribute = ATTR_NOR;
+	ip->save_curx = 0;
+	ip->save_cury = 0;
+	ip->save_attribute = ATTR_NOR;
+	ip->ap = ip->argbuf;
+	ip->emul_level = 0;
+	ip->eightbit_C1 = 0;
+	ip->top_margin = 0;
+	ip->bottom_margin = ip->rows - 1;
+	ip->inside_margins = 0;
+	ip->linefeed_newline = 0;
+	ip->auto_wrap = ite_default_wrap;
+	ip->cursor_appmode = 0;
+	ip->keypad_appmode = 0;
+	ip->imode = 0;
+	ip->key_repeat = 1;
+	bzero(ip->tabs, ip->cols);
+	for (i = 0; i < ip->cols; i++)
+		ip->tabs[i] = ((i & 7) == 0);
+}
+
+/*
+ * has to be global becuase of the shared filters.
+ */
+static u_char key_mod;
+static u_char last_dead;
+
+/* Used in console at startup only */
+int
+ite_cnfilter(c, caller)
+	u_char c;
+	enum caller caller;
+{
+	struct key key;
+	u_char code, up, mask;
+	int s, i;
+
+	up = c & 0x80 ? 1 : 0;
+	c &= 0x7f;
+	code = 0;
+
+	s = spltty();
+
+	i = (int)c - KBD_LEFT_SHIFT;
+	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
+		mask = 1 << i;
+		if (up)
+			key_mod &= ~mask;
+		else
+			key_mod |= mask;
+		splx(s);
+		return -1;
+	}	
+
+	if (up) {
+		splx(s);
+		return -1;
+	}
+	
+	/* translate modifiers */
+	if (key_mod & KBD_MOD_SHIFT) {
+		if (key_mod & KBD_MOD_ALT)
+			key = kbdmap.alt_shift_keys[c];
+		else 
+			key = kbdmap.shift_keys[c];
+	} else if (key_mod & KBD_MOD_ALT)
+		key = kbdmap.alt_keys[c];
+	else {
+		key = kbdmap.keys[c];
+		/* if CAPS and key is CAPable (no pun intended) */
+		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
+			key = kbdmap.shift_keys[c];
+	}
+	code = key.code;
+
+	/* if string return */
+	if (key.mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) {
+		splx(s);
+		return -1;
+	}
+	/* handle dead keys */
+	if (key.mode & KBD_MODE_DEAD) {
+		/* if entered twice, send accent itself */
+		if (last_dead == key.mode & KBD_MODE_ACCMASK)
+			last_dead = 0;
+		else {
+			last_dead = key.mode & KBD_MODE_ACCMASK;
+			splx(s);
+			return -1;
+		}
+	}
+	if (last_dead) {
+		/* can't apply dead flag to string-keys */
+		if (code >= '@' && code < 0x7f)
+			code =
+			    acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
+		last_dead = 0;
+	}
+	if (key_mod & KBD_MOD_CTRL)
+		code &= 0x1f;
+	if (key_mod & KBD_MOD_META)
+		code |= 0x80;
+
+	/* do console mapping. */
+	code = code == '\r' ? '\n' : code;
+
+	splx(s);
+	return (code);
+}
+
+/* And now the old stuff. */
+
+/* these are used to implement repeating keys.. */
+static u_char last_char;
+static u_char tout_pending;
+
+
+static void
+ite_sifilter(void *arg1, void *arg2)
+{
+	ite_filter((u_char)arg1, (enum caller)arg2);
+}
+
+
+/*ARGSUSED*/
+static void
+repeat_handler(arg)
+	void *arg;
+{
+	tout_pending = 0;
+	if (last_char) 
+		add_sicallback(ite_sifilter, (void *)last_char,
+		    (void *)ITEFILT_REPEATER);
+}
+
+void
+ite_filter(c, caller)
+	u_char c;
+	enum caller caller;
+{
+	struct tty *kbd_tty;
+	u_char code, *str, up, mask;
+	struct key key;
+	int s, i;
+
+	if (kbd_ite == NULL || kbd_ite->tp == NULL)
+		return;
+
+	kbd_tty = kbd_ite->tp;
+
+	/* have to make sure we're at spltty in here */
+	s = spltty();
+
+	/* 
+	 * keyboard interrupts come at priority 2, while softint
+	 * generated keyboard-repeat interrupts come at level 1.  So,
+	 * to not allow a key-up event to get thru before a repeat for
+	 * the key-down, we remove any outstanding callout requests..
+	 */
+	rem_sicallback(ite_filter);
+
+	up = c & 0x80 ? 1 : 0;
+	c &= 0x7f;
+	code = 0;
+
+	i = (int)c - KBD_LEFT_SHIFT;
+	if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) {
+		mask = 1 << i;
+		if (up)
+			key_mod &= ~mask;
+		else
+			key_mod |= mask;
+		splx(s);
+		return;
+	}
+	/* stop repeating on up event */
+	if (up) {
+		if (tout_pending) {
+			untimeout(repeat_handler, 0);
+			tout_pending = 0;
+			last_char = 0;
+		}
+		splx(s);
+		return;
+	} else if (tout_pending && last_char != c) {
+		/* different character, stop also */
+		untimeout(repeat_handler, 0);
+		tout_pending = 0;
+		last_char = 0;
+	}
+	/* Safety button, switch back to ascii keymap. */
+	if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) {
+		bcopy(&ascii_kbdmap, &kbdmap, sizeof(struct kbdmap));
+
+		splx(s);
+		return;
+#ifdef DDB
+	} else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) {
+		extern int Debugger();
+		Debugger();
+		splx(s);
+		return;
+#endif
+	}
+	/* translate modifiers */
+	if (key_mod & KBD_MOD_SHIFT) {
+		if (key_mod & KBD_MOD_ALT)
+			key = kbdmap.alt_shift_keys[c];
+		else 
+			key = kbdmap.shift_keys[c];
+	} else if (key_mod & KBD_MOD_ALT)
+		key = kbdmap.alt_keys[c];
+	else {
+		key = kbdmap.keys[c];
+		/* if CAPS and key is CAPable (no pun intended) */
+		if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS))
+			key = kbdmap.shift_keys[c];
+	}
+	code = key.code;
+
+	/* 
+	 * arrange to repeat the keystroke. By doing this at the level
+	 * of scan-codes, we can have function keys, and keys that
+	 * send strings, repeat too. This also entitles an additional
+	 * overhead, since we have to do the conversion each time, but
+	 * I guess that's ok.
+	 */
+	if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) {
+		tout_pending = 1;
+		last_char = c;
+		timeout(repeat_handler, 0, start_repeat_timeo * hz / 100);
+	} else if (!tout_pending && caller == ITEFILT_REPEATER &&
+	    kbd_ite->key_repeat) {
+		tout_pending = 1;
+		last_char = c;
+		timeout(repeat_handler, 0, next_repeat_timeo * hz / 100);
+	}
+	/* handle dead keys */
+	if (key.mode & KBD_MODE_DEAD) {
+		/* if entered twice, send accent itself */
+		if (last_dead == key.mode & KBD_MODE_ACCMASK)
+			last_dead = 0;
+		else {
+			last_dead = key.mode & KBD_MODE_ACCMASK;
+			splx(s);
+			return;
+		}
+	}
+	if (last_dead) {
+		/* can't apply dead flag to string-keys */
+		if (!(key.mode & KBD_MODE_STRING) && code >= '@' &&
+		    code < 0x7f)
+			code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@'];
+		last_dead = 0;
+	}
+	/* if not string, apply META and CTRL modifiers */
+	if (!(key.mode & KBD_MODE_STRING)
+	    && (!(key.mode & KBD_MODE_KPAD) ||
+		(kbd_ite && !kbd_ite->keypad_appmode))) {
+		if (key_mod & KBD_MOD_CTRL)
+			code &= 0x1f;
+		if (key_mod & KBD_MOD_META)
+			code |= 0x80;
+	} else if ((key.mode & KBD_MODE_KPAD) &&
+	    (kbd_ite && kbd_ite->keypad_appmode)) {
+		static char in[] = {
+		    0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */,
+		    0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */,
+		    0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */,
+		    0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */,
+		    0x5c /* / */, 0x5d /* * */
+		};
+		static char *out = "pqrstuvwxymlnMPQRS";
+		char *cp = index (in, c);
+
+		/* 
+		 * keypad-appmode sends SS3 followed by the above
+		 * translated character
+		 */
+		(*linesw[kbd_tty->t_line].l_rint) (27, kbd_tty);
+		(*linesw[kbd_tty->t_line].l_rint) ('O', kbd_tty);
+		(*linesw[kbd_tty->t_line].l_rint) (out[cp - in], kbd_tty);
+		splx(s);
+		return;
+	} else {
+		/* *NO* I don't like this.... */
+		static u_char app_cursor[] =
+		{
+		    3, 27, 'O', 'A',
+		    3, 27, 'O', 'B',
+		    3, 27, 'O', 'C',
+		    3, 27, 'O', 'D'};
+
+		str = kbdmap.strings + code;
+		/* 
+		 * if this is a cursor key, AND it has the default
+		 * keymap setting, AND we're in app-cursor mode, switch
+		 * to the above table. This is *nasty* !
+		 */
+		if (c >= 0x4c && c <= 0x4f && kbd_ite->cursor_appmode
+		    && !bcmp(str, "\x03\x1b[", 3) &&
+		    index("ABCD", str[3]))
+			str = app_cursor + 4 * (str[3] - 'A');
+
+		/* 
+		 * using a length-byte instead of 0-termination allows
+		 * to embed \0 into strings, although this is not used
+		 * in the default keymap
+		 */
+		for (i = *str++; i; i--)
+			(*linesw[kbd_tty->t_line].l_rint) (*str++, kbd_tty);
+		splx(s);
+		return;
+	}
+	(*linesw[kbd_tty->t_line].l_rint) (code, kbd_tty);
+
+	splx(s);
+	return;
+}
+
+/* helper functions, makes the code below more readable */
+static void inline
+ite_sendstr(str)
+	char *str;
+{
+	struct tty *kbd_tty;
+
+	kbd_tty = kbd_ite->tp;
+	KDASSERT(kbd_tty);
+	while (*str)
+		(*linesw[kbd_tty->t_line].l_rint) (*str++, kbd_tty);
+}
+
+static void
+alignment_display(ip)
+	struct ite_softc *ip;
+{
+  int i, j;
+
+  for (j = 0; j < ip->rows; j++)
+    for (i = 0; i < ip->cols; i++)
+      SUBR_PUTC(ip, 'E', j, i, ATTR_NOR);
+  attrclr(ip, 0, 0, ip->rows, ip->cols);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+snap_cury(ip)
+	struct ite_softc *ip;
+{
+  if (ip->inside_margins)
+    {
+      if (ip->cury < ip->top_margin)
+	ip->cury = ip->top_margin;
+      if (ip->cury > ip->bottom_margin)
+	ip->cury = ip->bottom_margin;
+    }
+}
+
+static void inline
+ite_dnchar(ip, n)
+     struct ite_softc *ip;
+     int n;
+{
+  n = min(n, ip->cols - ip->curx);
+  if (n < ip->cols - ip->curx)
+    {
+      SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT);
+      attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx,
+	      1, ip->cols - ip->curx - n);
+      attrclr(ip, ip->cury, ip->cols - n, 1, n);
+    }
+  while (n-- > 0)
+    SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+ite_inchar(ip, n)
+     struct ite_softc *ip;
+     int n;
+{
+  n = min(n, ip->cols - ip->curx);
+  if (n < ip->cols - ip->curx)
+    {
+      SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT);
+      attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n,
+	      1, ip->cols - ip->curx - n);
+      attrclr(ip, ip->cury, ip->curx, 1, n);
+    }
+  while (n--)
+    SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+ite_clrtoeol(ip)
+     struct ite_softc *ip;
+{
+  int y = ip->cury, x = ip->curx;
+  if (ip->cols - x > 0)
+    {
+      SUBR_CLEAR(ip, y, x, 1, ip->cols - x);
+      attrclr(ip, y, x, 1, ip->cols - x);
+      SUBR_CURSOR(ip, DRAW_CURSOR);
+    }
+}
+
+static void inline
+ite_clrtobol(ip)
+     struct ite_softc *ip;
+{
+  int y = ip->cury, x = min(ip->curx + 1, ip->cols);
+  SUBR_CLEAR(ip, y, 0, 1, x);
+  attrclr(ip, y, 0, 1, x);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+ite_clrline(ip)
+     struct ite_softc *ip;
+{
+  int y = ip->cury;
+  SUBR_CLEAR(ip, y, 0, 1, ip->cols);
+  attrclr(ip, y, 0, 1, ip->cols);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+
+
+static void inline
+ite_clrtoeos(ip)
+     struct ite_softc *ip;
+{
+  ite_clrtoeol(ip);
+  if (ip->cury < ip->rows - 1)
+    {
+      SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols);
+      attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols);
+      SUBR_CURSOR(ip, DRAW_CURSOR);
+    }
+}
+
+static void inline
+ite_clrtobos(ip)
+     struct ite_softc *ip;
+{
+  ite_clrtobol(ip);
+  if (ip->cury > 0)
+    {
+      SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols);
+      attrclr(ip, 0, 0, ip->cury, ip->cols);
+      SUBR_CURSOR(ip, DRAW_CURSOR);
+    }
+}
+
+static void inline
+ite_clrscreen(ip)
+     struct ite_softc *ip;
+{
+  SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols);
+  attrclr(ip, 0, 0, ip->rows, ip->cols);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+
+
+static void inline
+ite_dnline(ip, n)
+     struct ite_softc *ip;
+     int n;
+{
+  /* interesting.. if the cursor is outside the scrolling
+     region, this command is simply ignored.. */
+  if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
+    return;
+
+  n = min(n, ip->bottom_margin + 1 - ip->cury);
+  if (n <= ip->bottom_margin - ip->cury)
+    {
+      SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP);
+      attrmov(ip, ip->cury + n, 0, ip->cury, 0,
+	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
+    }
+  SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
+  attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+ite_inline(ip, n)
+     struct ite_softc *ip;
+     int n;
+{
+  /* interesting.. if the cursor is outside the scrolling
+     region, this command is simply ignored.. */
+  if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin)
+    return;
+
+  n = min(n, ip->bottom_margin + 1 - ip->cury);
+  if (n <= ip->bottom_margin - ip->cury)
+    {
+      SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN);
+      attrmov(ip, ip->cury, 0, ip->cury + n, 0,
+	      ip->bottom_margin + 1 - ip->cury - n, ip->cols);
+    }
+  SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols);
+  attrclr(ip, ip->cury, 0, n, ip->cols);
+  SUBR_CURSOR(ip, DRAW_CURSOR);
+}
+
+static void inline
+ite_lf (ip)
+     struct ite_softc *ip;
+{
+  ++ip->cury;
+  if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows))
+    {
+      ip->cury--;
+      SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
+      ite_clrline(ip);
+    }
+  SUBR_CURSOR(ip, MOVE_CURSOR);
+  clr_attr(ip, ATTR_INV);
+}
+
+static void inline 
+ite_crlf (ip)
+     struct ite_softc *ip;
+{
+  ip->curx = 0;
+  ite_lf (ip);
+}
+
+static void inline
+ite_cr (ip)
+     struct ite_softc *ip;
+{
+  if (ip->curx)
+    {
+      ip->curx = 0;
+      SUBR_CURSOR(ip, MOVE_CURSOR);
+    }
+}
+
+static void inline
+ite_rlf (ip)
+     struct ite_softc *ip;
+{
+  ip->cury--;
+  if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1))
+    {
+      ip->cury++;
+      SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN);
+      ite_clrline(ip);
+    }
+  SUBR_CURSOR(ip, MOVE_CURSOR);
+  clr_attr(ip, ATTR_INV);
+}
+
+static int inline
+atoi (cp)
+    const char *cp;
+{
+  int n;
+
+  for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++)
+    n = n * 10 + *cp - '0';
+
+  return n;
+}
+
+static char *
+index (cp, ch)
+    const char *cp;
+    char ch;
+{
+  while (*cp && *cp != ch) cp++;
+  return *cp ? (char *) cp : 0;
+}
+
+
+
+static int inline
+ite_argnum (ip)
+    struct ite_softc *ip;
+{
+  char ch;
+  int n;
+
+  /* convert argument string into number */
+  if (ip->ap == ip->argbuf)
+    return 1;
+  ch = *ip->ap;
+  *ip->ap = 0;
+  n = atoi (ip->argbuf);
+  *ip->ap = ch;
+  
+  return n;
+}
+
+static int inline
+ite_zargnum (ip)
+    struct ite_softc *ip;
+{
+  char ch, *cp;
+  int n;
+
+  /* convert argument string into number */
+  if (ip->ap == ip->argbuf)
+    return 0;
+  ch = *ip->ap;
+  *ip->ap = 0;
+  n = atoi (ip->argbuf);
+  *ip->ap = ch;
+  
+  return n;	/* don't "n ? n : 1" here, <CSI>0m != <CSI>1m ! */
+}
+
+static int inline
+strncmp (a, b, l)
+    const char *a, *b;
+    int l;
+{
+  for (;l--; a++, b++)
+    if (*a != *b)
+      return *a - *b;
+  return 0;
+}
+
+void
+ite_putstr(s, len, dev)
+	const char *s;
+	int len;
+	dev_t dev;
+{
+	struct ite_softc *ip;
+	int i;
+	
+	ip = getitesp(dev);
+
+	/* XXX avoid problems */
+	if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE)
+	  	return;
+
+	SUBR_CURSOR(ip, START_CURSOROPT);
+	for (i = 0; i < len; i++)
+		if (s[i])
+			iteputchar(s[i], ip);
+	SUBR_CURSOR(ip, END_CURSOROPT);
+}
+
+void
+iteputchar(c, ip)
+	register int c;
+	struct ite_softc *ip;
+{
+	struct tty *kbd_tty;
+	int n, x, y;
+	char *cp;
+
+	if (kbd_ite == NULL)
+		kbd_tty = NULL;
+	else
+		kbd_tty = kbd_ite->tp;
+
+	if (ip->escape) {
+doesc:
+		switch (ip->escape) {
+		case ESC:
+			switch (c) {
+				/*
+				 * first 7bit equivalents for the
+				 * 8bit control characters
+				 */
+			case 'D':
+				c = IND;
+				ip->escape = 0;
+				break;
+				/*
+				 * and fall into the next
+				 * switch below (same for all `break')
+				 */
+			case 'E':
+				c = NEL;
+				ip->escape = 0;
+				break;
+			case 'H':
+				c = HTS;
+				ip->escape = 0;
+				break;
+			case 'M':
+				c = RI;
+				ip->escape = 0;
+				break;
+			case 'N':
+				c = SS2;
+				ip->escape = 0;
+				break;
+			case 'O':
+				c = SS3;
+				ip->escape = 0;
+				break;
+			case 'P':
+				c = DCS;
+				ip->escape = 0;
+				break;
+			case '[':
+				c = CSI;
+				ip->escape = 0;
+				break;
+			case '\\':
+				c = ST;
+				ip->escape = 0;
+				break;
+			case ']':
+				c = OSC;
+				ip->escape = 0;
+				break;
+			case '^':
+				c = PM;
+				ip->escape = 0;
+				break;
+			case '_':
+				c = APC;
+				ip->escape = 0;
+				break;
+				/* introduces 7/8bit control */
+			case ' ':
+				/* can be followed by either F or G */
+				ip->escape = ' ';
+				break;
+			/*
+			 * a lot of character set selections, not yet
+			 * used... 94-character sets:
+			 */
+			case '(':	/* G0 */
+			case ')':	/* G1 */
+				ip->escape = c;
+				return;
+			case '*':	/* G2 */
+			case '+':	/* G3 */
+			case 'B':	/* ASCII */
+			case 'A':	/* ISO latin 1 */
+			case '<':	/* user preferred suplemental */
+			case '0':	/* dec special graphics */
+			/*
+			 * 96-character sets:
+			 */
+			case '-':	/* G1 */
+			case '.':	/* G2 */
+			case '/':	/* G3 */
+			/*
+			 * national character sets:
+			 */
+			case '4':	/* dutch */
+			case '5':
+			case 'C':	/* finnish */
+			case 'R':	/* french */
+			case 'Q':	/* french canadian */
+			case 'K':	/* german */
+			case 'Y':	/* italian */
+			case '6':	/* norwegian/danish */
+				/*
+				 * note: %5 and %6 are not supported (two
+				 * chars..)
+				 */
+				ip->escape = 0;
+				/* just ignore for now */
+				return;
+			/*
+			 * locking shift modes (as you might guess, not
+			 * yet supported..)
+			 */
+			case '`':
+				ip->GR = ip->G1;
+				ip->escape = 0;
+				return;
+			case 'n':
+				ip->GL = ip->G2;
+				ip->escape = 0;
+				return;
+			case '}':
+				ip->GR = ip->G2;
+				ip->escape = 0;
+				return;
+			case 'o':
+				ip->GL = ip->G3;
+				ip->escape = 0;
+				return;
+			case '|':
+				ip->GR = ip->G3;
+				ip->escape = 0;
+				return;
+			case '#':
+				/* font width/height control */
+				ip->escape = '#';
+				return;
+			case 'c':
+				/* hard terminal reset .. */
+				ite_reset(ip);
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				ip->escape = 0;
+				return;
+			case '7':
+				ip->save_curx = ip->curx;
+				ip->save_cury = ip->cury;
+				ip->save_attribute = ip->attribute;
+				ip->escape = 0;
+				return;
+			case '8':
+				ip->curx = ip->save_curx;
+				ip->cury = ip->save_cury;
+				ip->attribute = ip->save_attribute;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				ip->escape = 0;
+				return;
+			case '=':
+				ip->keypad_appmode = 1;
+				ip->escape = 0;
+				return;
+			case '>':
+				ip->keypad_appmode = 0;
+				ip->escape = 0;
+				return;
+			case 'Z':	/* request ID */
+				/* XXX not clean */
+				if (ip->emul_level == EMUL_VT100)
+					ite_sendstr("\033[?61;0c");
+				else
+					ite_sendstr("\033[?63;0c");
+				ip->escape = 0;
+				return;
+			default:
+				/*
+				 * default catch all for not recognized ESC
+				 * sequences
+				 */
+				ip->escape = 0;
+				return;
+			}
+			break;
+		case '(':
+		case ')':
+			ip->escape = 0;
+			return;
+		case ' ':
+			switch (c) {
+			case 'F':
+				ip->eightbit_C1 = 0;
+				ip->escape = 0;
+				return;
+			case 'G':
+				ip->eightbit_C1 = 1;
+				ip->escape = 0;
+				return;
+			default:
+				/* not supported */
+				ip->escape = 0;
+				return;
+			}
+			break;
+		case '#':
+			switch (c) {
+			case '5':
+				/* single height, single width */
+				ip->escape = 0;
+				return;
+			case '6':
+				/* double width, single height */
+				ip->escape = 0;
+				return;
+			case '3':
+				/* top half */
+				ip->escape = 0;
+				return;
+			case '4':
+				/* bottom half */
+				ip->escape = 0;
+				return;
+			case '8':
+				/* screen alignment pattern... */
+				alignment_display(ip);
+				ip->escape = 0;
+				return;
+			default:
+				ip->escape = 0;
+				return;
+			}
+			break;
+		case CSI:
+			/* the biggie... */
+			switch (c) {
+			case '0':
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+			case ';':
+			case '\"':
+			case '$':
+			case '>':
+				if (ip->ap < ip->argbuf + MAX_ARGSIZE)
+					*ip->ap++ = c;
+				return;
+			case BS:
+				/*
+				 * you wouldn't believe such perversion is
+				 * possible? it is.. BS is allowed in between
+				 * cursor sequences (at least), according to
+				 * vttest..
+				 */
+				if (--ip->curx < 0)
+					ip->curx = 0;
+				else
+					SUBR_CURSOR(ip, MOVE_CURSOR);
+				break;
+			case 'p':
+				*ip->ap = 0;
+				if (!strncmp(ip->argbuf, "61\"", 3))
+					ip->emul_level = EMUL_VT100;
+				else if (!strncmp(ip->argbuf, "63;1\"", 5)
+				    || !strncmp(ip->argbuf, "62;1\"", 5))
+					ip->emul_level = EMUL_VT300_7;
+				else
+					ip->emul_level = EMUL_VT300_8;
+				ip->escape = 0;
+				return;
+			case '?':
+				*ip->ap = 0;
+				ip->escape = '?';
+				ip->ap = ip->argbuf;
+				return;
+			case 'c':
+				*ip->ap = 0;
+				if (ip->argbuf[0] == '>') {
+					ite_sendstr("\033[>24;0;0;0c");
+				} else
+					switch (ite_zargnum(ip)) {
+					case 0:
+						/*
+						 * primary DA request, send
+						 * primary DA response
+						 */
+						if (ip->emul_level
+						    == EMUL_VT100)
+							ite_sendstr(
+							    "\033[?1;1c");
+						else
+							ite_sendstr(
+							    "\033[?63;1c");
+						break;
+					}
+				ip->escape = 0;
+				return;
+			case 'n':
+				switch (ite_zargnum(ip)) {
+				case 5:
+					/* no malfunction */
+					ite_sendstr("\033[0n");
+					break;
+				case 6:
+					/* cursor position report */
+					sprintf(ip->argbuf, "\033[%d;%dR",
+					    ip->cury + 1, ip->curx + 1);
+					ite_sendstr(ip->argbuf);
+					break;
+				}
+				ip->escape = 0;
+				return;
+			case 'x':
+				switch (ite_zargnum(ip)) {
+				case 0:
+					/* Fake some terminal parameters.  */
+					ite_sendstr("\033[2;1;1;112;112;1;0x");
+					break;
+				case 1:
+					ite_sendstr("\033[3;1;1;112;112;1;0x");
+					break;
+				}
+				ip->escape = 0;
+				return;
+			case 'g':
+				switch (ite_zargnum(ip)) {
+				case 0:
+					if (ip->curx < ip->cols)
+						ip->tabs[ip->curx] = 0;
+					break;
+				case 3:
+					for (n = 0; n < ip->cols; n++)
+						ip->tabs[n] = 0;
+					break;
+				}
+				ip->escape = 0;
+				return;
+			case 'h':
+			case 'l':
+				n = ite_zargnum(ip);
+				switch (n) {
+				case 4:
+					/* insert/replace mode */
+					ip->imode = (c == 'h');
+					break;
+				case 20:
+					ip->linefeed_newline = (c == 'h');
+					break;
+				}
+				ip->escape = 0;
+				return;
+			case 'M':
+				ite_dnline(ip, ite_argnum(ip));
+				ip->escape = 0;
+				return;
+			case 'L':
+				ite_inline(ip, ite_argnum(ip));
+				ip->escape = 0;
+				return;
+			case 'P':
+				ite_dnchar(ip, ite_argnum(ip));
+				ip->escape = 0;
+				return;
+			case '@':
+				ite_inchar(ip, ite_argnum(ip));
+				ip->escape = 0;
+				return;
+			case 'G':
+				/*
+				 * this one was *not* in my vt320 manual but in
+				 * a vt320 termcap entry.. who is right? It's
+				 * supposed to set the horizontal cursor
+				 * position.
+				 */
+				*ip->ap = 0;
+				x = atoi(ip->argbuf);
+				if (x)
+					x--;
+				ip->curx = min(x, ip->cols - 1);
+				ip->escape = 0;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'd':
+				/*
+				 * same thing here, this one's for setting the
+				 * absolute vertical cursor position. Not
+				 * documented...
+				 */
+				*ip->ap = 0;
+				y = atoi(ip->argbuf);
+				if (y)
+					y--;
+				if (ip->inside_margins)
+					y += ip->top_margin;
+				ip->cury = min(y, ip->rows - 1);
+				ip->escape = 0;
+				snap_cury(ip);
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'H':
+			case 'f':
+				*ip->ap = 0;
+				y = atoi(ip->argbuf);
+				x = 0;
+				cp = index(ip->argbuf, ';');
+				if (cp)
+					x = atoi(cp + 1);
+				if (x)
+					x--;
+				if (y)
+					y--;
+				if (ip->inside_margins)
+					y += ip->top_margin;
+				ip->cury = min(y, ip->rows - 1);
+				ip->curx = min(x, ip->cols - 1);
+				ip->escape = 0;
+				snap_cury(ip);
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'A':
+				n = ite_argnum(ip);
+				n = ip->cury - (n ? n : 1);
+				if (n < 0)
+					n = 0;
+				if (ip->inside_margins)
+					n = max(ip->top_margin, n);
+				else if (n == ip->top_margin - 1)
+					/*
+					 * allow scrolling outside region, but
+					 * don't scroll out of active region
+					 * without explicit CUP
+					 */
+					n = ip->top_margin;
+				ip->cury = n;
+				ip->escape = 0;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'B':
+				n = ite_argnum(ip);
+				n = ip->cury + (n ? n : 1);
+				n = min(ip->rows - 1, n);
+				if (ip->inside_margins)
+					n = min(ip->bottom_margin, n);
+				else if (n == ip->bottom_margin + 1)
+					/*
+					 * allow scrolling outside region, but
+					 * don't scroll out of active region
+					 * without explicit CUP
+					 */
+					n = ip->bottom_margin;
+				ip->cury = n;
+				ip->escape = 0;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'C':
+				n = ite_argnum(ip);
+				n = n ? n : 1;
+				ip->curx = min(ip->curx + n, ip->cols - 1);
+				ip->escape = 0;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'D':
+				n = ite_argnum(ip);
+				n = n ? n : 1;
+				n = ip->curx - n;
+				ip->curx = n >= 0 ? n : 0;
+				ip->escape = 0;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				clr_attr(ip, ATTR_INV);
+				return;
+			case 'J':
+				*ip->ap = 0;
+				n = ite_zargnum(ip);
+				if (n == 0)
+					ite_clrtoeos(ip);
+				else if (n == 1)
+					ite_clrtobos(ip);
+				else if (n == 2)
+					ite_clrscreen(ip);
+				ip->escape = 0;
+				return;
+			case 'K':
+				n = ite_zargnum(ip);
+				if (n == 0)
+					ite_clrtoeol(ip);
+				else if (n == 1)
+					ite_clrtobol(ip);
+				else if (n == 2)
+					ite_clrline(ip);
+				ip->escape = 0;
+				return;
+			case 'X':
+				n = ite_argnum(ip) - 1;
+				n = min(n, ip->cols - 1 - ip->curx);
+				for (; n >= 0; n--) {
+					attrclr(ip, ip->cury, ip->curx + n, 1, 1);
+					SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR);
+				}
+				ip->escape = 0;
+				return;
+			case '}':
+			case '`':
+				/* status line control */
+				ip->escape = 0;
+				return;
+			case 'r':
+				*ip->ap = 0;
+				x = atoi(ip->argbuf);
+				x = x ? x : 1;
+				y = ip->rows;
+				cp = index(ip->argbuf, ';');
+				if (cp) {
+					y = atoi(cp + 1);
+					y = y ? y : ip->rows;
+				}
+				if (y - x < 2) {
+					/*
+					 * if illegal scrolling region, reset
+					 * to defaults
+					 */
+					x = 1;
+					y = ip->rows;
+				}
+				x--;
+				y--;
+				ip->top_margin = min(x, ip->rows - 1);
+				ip->bottom_margin = min(y, ip->rows - 1);
+				if (ip->inside_margins) {
+					ip->cury = ip->top_margin;
+					ip->curx = 0;
+					SUBR_CURSOR(ip, MOVE_CURSOR);
+				}
+				ip->escape = 0;
+				return;
+			case 'm':
+				/* big attribute setter/resetter */
+				{ char *cp;
+				*ip->ap = 0;
+				/* kludge to make CSIm work (== CSI0m) */
+				if (ip->ap == ip->argbuf)
+					ip->ap++;
+				for (cp = ip->argbuf; cp < ip->ap;) {
+					switch (*cp) {
+					case 0:
+					case '0':
+						clr_attr(ip, ATTR_ALL);
+						cp++;
+						break;
+
+					case '1':
+						set_attr(ip, ATTR_BOLD);
+						cp++;
+						break;
+
+					case '2':
+						switch (cp[1]) {
+						case '2':
+							clr_attr(ip, ATTR_BOLD);
+							cp += 2;
+							break;
+
+						case '4':
+							clr_attr(ip, ATTR_UL);
+							cp += 2;
+							break;
+
+						case '5':
+							clr_attr(ip, ATTR_BLINK);
+							cp += 2;
+							break;
+
+						case '7':
+							clr_attr(ip, ATTR_INV);
+							cp += 2;
+							break;
+
+						default:
+							cp++;
+							break;
+						}
+						break;
+
+					case '4':
+						set_attr(ip, ATTR_UL);
+						cp++;
+						break;
+
+					case '5':
+						set_attr(ip, ATTR_BLINK);
+						cp++;
+						break;
+
+					case '7':
+						set_attr(ip, ATTR_INV);
+						cp++;
+						break;
+
+					default:
+						cp++;
+						break;
+					}
+				}
+				ip->escape = 0;
+				return; }
+			case 'u':
+				/* DECRQTSR */
+				ite_sendstr("\033P\033\\");
+				ip->escape = 0;
+				return;
+			default:
+				ip->escape = 0;
+				return;
+			}
+			break;
+		case '?':	/* CSI ? */
+			switch (c) {
+			case '0':
+			case '1':
+			case '2':
+			case '3':
+			case '4':
+			case '5':
+			case '6':
+			case '7':
+			case '8':
+			case '9':
+			case ';':
+			case '\"':
+			case '$':
+				/*
+				 * Don't fill the last character;
+				 * it's needed.
+				 * XXX yeah, where ??
+				 */
+				if (ip->ap < ip->argbuf + MAX_ARGSIZE - 1)
+					*ip->ap++ = c;
+				return;
+			case 'n':
+				*ip->ap = 0;
+				if (ip->ap == &ip->argbuf[2]) {
+					if (!strncmp(ip->argbuf, "15", 2))
+						/* printer status: no printer */
+						ite_sendstr("\033[13n");
+
+					else if (!strncmp(ip->argbuf, "25", 2))
+						/* udk status */
+						ite_sendstr("\033[20n");
+
+					else if (!strncmp(ip->argbuf, "26", 2))
+						/* keyboard dialect: US */
+						ite_sendstr("\033[27;1n");
+				}
+				ip->escape = 0;
+				return;
+			case 'h':
+			case 'l':
+				n = ite_zargnum(ip);
+				switch (n) {
+				case 1:
+					ip->cursor_appmode = (c == 'h');
+					break;
+				case 3:
+					/* 132/80 columns (132 == 'h') */
+					break;
+				case 4:	/* smooth scroll */
+					break;
+				case 5:
+					/*
+					 * light background (=='h') /dark
+					 * background(=='l')
+					 */
+					break;
+				case 6:	/* origin mode */
+					ip->inside_margins = (c == 'h');
+					ip->curx = 0;
+					ip->cury = ip->inside_margins ?
+					    ip->top_margin : 0;
+					SUBR_CURSOR(ip, MOVE_CURSOR);
+					break;
+				case 7:	/* auto wraparound */
+					ip->auto_wrap = (c == 'h');
+					break;
+				case 8:	/* keyboard repeat */
+					ip->key_repeat = (c == 'h');
+					break;
+				case 20:	/* newline mode */
+					ip->linefeed_newline = (c == 'h');
+					break;
+				case 25:	/* cursor on/off */
+					SUBR_CURSOR(ip, (c == 'h') ?
+					    DRAW_CURSOR : ERASE_CURSOR);
+					break;
+				}
+				ip->escape = 0;
+				return;
+			default:
+				ip->escape = 0;
+				return;
+			}
+			break;
+		default:
+			ip->escape = 0;
+			return;
+		}
+	}
+	switch (c) {
+	case VT:		/* VT is treated like LF */
+	case FF:		/* so is FF */
+	case LF:
+		/*
+		 * cr->crlf distinction is done here, on output, not on input!
+		 */
+		if (ip->linefeed_newline)
+			ite_crlf(ip);
+		else
+			ite_lf(ip);
+		break;
+	case CR:
+		ite_cr(ip);
+		break;
+	case BS:
+		if (--ip->curx < 0)
+			ip->curx = 0;
+		else
+			SUBR_CURSOR(ip, MOVE_CURSOR);
+		break;
+	case HT:
+		for (n = ip->curx + 1; n < ip->cols; n++) {
+			if (ip->tabs[n]) {
+				ip->curx = n;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				break;
+			}
+		}
+		break;
+	case BEL:
+		if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty)
+			ite_bell();
+		break;
+	case SO:
+		ip->GL = ip->G1;
+		break;
+	case SI:
+		ip->GL = ip->G0;
+		break;
+	case ENQ:
+		/* send answer-back message !! */
+		break;
+	case CAN:
+		ip->escape = 0;	/* cancel any escape sequence in progress */
+		break;
+	case SUB:
+		ip->escape = 0;	/* dito, but see below */
+		/* should also display a reverse question mark!! */
+		break;
+	case ESC:
+		ip->escape = ESC;
+		break;
+	/*
+	 * now it gets weird.. 8bit control sequences..
+	 */
+	case IND:
+		/* index: move cursor down, scroll */
+		ite_lf(ip);
+		break;
+	case NEL:
+		/* next line. next line, first pos. */
+		ite_crlf(ip);
+		break;
+	case HTS:
+		/* set horizontal tab */
+		if (ip->curx < ip->cols)
+			ip->tabs[ip->curx] = 1;
+		break;
+	case RI:
+		/* reverse index */
+		ite_rlf(ip);
+		break;
+	case SS2:
+		/* go into G2 for one character */
+		/* not yet supported */
+		break;
+	case SS3:
+		/* go into G3 for one character */
+		break;
+	case DCS:
+		/* device control string introducer */
+		ip->escape = DCS;
+		ip->ap = ip->argbuf;
+		break;
+	case CSI:
+		/* control sequence introducer */
+		ip->escape = CSI;
+		ip->ap = ip->argbuf;
+		break;
+	case ST:
+		/* string terminator */
+		/* ignore, if not used as terminator */
+		break;
+	case OSC:
+		/* 
+		 * introduces OS command. Ignore everything
+		 * upto ST
+		 */
+		ip->escape = OSC;
+		break;
+	case PM:
+		/* privacy message, ignore everything upto ST */
+		ip->escape = PM;
+		break;
+	case APC:
+		/*
+		 * application program command, ignore * everything upto ST
+		 */
+		ip->escape = APC;
+		break;
+	default:
+		if ((c & 0x7f) < ' ' || c == DEL)
+			break;
+		if (ip->imode)
+			ite_inchar(ip, 1);
+		iteprecheckwrap(ip);
+#ifdef DO_WEIRD_ATTRIBUTES
+		if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) {
+			attrset(ip, ATTR_INV);
+			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV);
+		} else
+			SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR);
+#else
+		SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute);
+#endif
+		SUBR_CURSOR(ip, DRAW_CURSOR);
+		itecheckwrap(ip);
+		break;
+	}
+}
+
+int
+iteprecheckwrap(ip)
+	struct ite_softc *ip;
+{
+	if (ip->auto_wrap && ip->curx == ip->cols) {
+		ip->curx = 0;
+		clr_attr(ip, ATTR_INV);
+		if (++ip->cury >= ip->bottom_margin + 1) {
+			ip->cury = ip->bottom_margin;
+			SUBR_CURSOR(ip, MOVE_CURSOR);
+			SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
+			ite_clrtoeol(ip);
+		} else
+			SUBR_CURSOR(ip, MOVE_CURSOR);
+	}
+}
+
+int
+itecheckwrap(ip)
+	struct ite_softc *ip;
+{
+#if 0
+	if (++ip->curx == ip->cols) {
+		if (ip->auto_wrap) {
+			ip->curx = 0;
+			clr_attr(ip, ATTR_INV);
+			if (++ip->cury >= ip->bottom_margin + 1) {
+				ip->cury = ip->bottom_margin;
+				SUBR_CURSOR(ip, MOVE_CURSOR);
+				SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP);
+				ite_clrtoeol(ip);
+				return;
+			}
+		} else
+			/* stay there if no autowrap.. */
+			ip->curx--;
+	}
+#else
+	if (ip->curx < ip->cols) {
+		ip->curx++;
+		SUBR_CURSOR(ip, MOVE_CURSOR);
+	}
+#endif
+}