1/*	$NetBSD: pckbd_encode.c,v 1.2.16.3 2004/09/21 13:27:37 skrll Exp $	*/
2
3/*-
4 * Copyright (c) 2000 TAKEMRUA, Shin All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by the PocketBSD project
17 *	and its contributors.
18 * 4. Neither the name of the project nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 */
35
36#include <sys/cdefs.h>
37__KERNEL_RCSID(0, "$NetBSD: pckbd_encode.c,v 1.2.16.3 2004/09/21 13:27:37 skrll Exp $");
38
39#include "opt_wsdisplay_compat.h"
40
41#ifdef WSDISPLAY_COMPAT_RAWKBD
42#include <sys/param.h>
43#include <dev/wscons/wsconsio.h>
44#include <dev/pckbport/pckbdreg.h>
45#include <dev/hpc/pckbd_encode.h>
46
47/*
48 * pckbd_encode() is inverse function of pckbd_decode() in dev/pckbc/pckbd.c.
49 */
50int
51pckbd_encode(u_int type, int datain, u_char *dataout)
52{
53	int res;
54	u_char updown;
55
56	res = 0;
57	updown = (type == WSCONS_EVENT_KEY_UP) ? 0x80 : 0;
58
59	/* 0x7f means BREAK key */
60	if (datain == 0x7f) {
61		dataout[res++] = KBR_EXTENDED1;
62		dataout[res++] = (0x1d | updown);
63		datain = 0x45;
64	}
65
66 	/* extended keys */
67	if (datain & 0x80) {
68		dataout[res++] = KBR_EXTENDED0;
69		datain &= 0x7f;
70	}
71
72	dataout[res++] = (datain | updown);
73
74	return (res);
75}
76#endif /* WSDISPLAY_COMPAT_RAWKBD */
77