sys/arch/hp300/stand/common/kbd.c

   1 /*      $NetBSD: kbd.c,v 1.6 2005/12/11 12:17:19 christos 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
  53 kbdgetc(void)
  54 {
  55
  56         return (selected_kbd != NULL) ? (*selected_kbd->k_getc)() : 0;
  57 }
  58
  59 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
  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 */