xref: /netbsd-src/sys/arch/hp300/stand/common/kbd.c (revision ce099b40997c43048fb78bd578195f81d2456523)
1 /*	$NetBSD: kbd.c,v 1.7 2008/04/28 20:23:19 martin Exp $	*/
2 
3 /*-
4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * Indirect keyboard driver for standalone ITE.
34  */
35 
36 #ifdef ITECONSOLE
37 
38 #include <sys/param.h>
39 
40 #include <lib/libsa/stand.h>
41 
42 #include <hp300/stand/common/samachdep.h>
43 #include <hp300/stand/common/kbdvar.h>
44 
45 #ifndef SMALL
46 
47 /*
48  * Function switch initialized by keyboard drivers.
49  */
50 struct kbdsw *selected_kbd;
51 
52 int
kbdgetc(void)53 kbdgetc(void)
54 {
55 
56 	return (selected_kbd != NULL) ? (*selected_kbd->k_getc)() : 0;
57 }
58 
59 void
kbdnmi(void)60 kbdnmi(void)
61 {
62 
63 	if (selected_kbd != NULL)
64 		(*selected_kbd->k_nmi)();
65 
66 	/*
67 	 * This is the only reasonable thing to do, unfortunately.
68 	 * Simply restarting the boot block by frobbing the stack and
69 	 * jumping to begin: doesn't properly reset variables that
70 	 * are in the data segment.
71 	 */
72 	printf("\nboot interrupted, resetting...\n");
73 	DELAY(1000000);
74 	call_req_reboot();
75 }
76 
77 void
kbdinit(void)78 kbdinit(void)
79 {
80 	int i;
81 
82 	selected_kbd = NULL;
83 
84 	for (i = 0; kbdsw[i].k_init != NULL; i++) {
85 		if ((*kbdsw[i].k_init)()) {
86 			selected_kbd = &kbdsw[i];
87 			return;
88 		}
89 	}
90 }
91 
92 #endif /* SMALL */
93 
94 #endif /* ITECONSOLE */
95