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kbd.c revision 1.2 
      1 /*	$NetBSD: kbd.c,v 1.2 1997/05/12 07:51:32 thorpej 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
     30  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Indirect keyboard driver for standalone ITE.
     41  */
     42 
     43 #ifdef ITECONSOLE
     44 
     45 #include <sys/param.h>
     46 
     47 #include <hp300/stand/common/samachdep.h>
     48 #include <hp300/stand/common/kbdvar.h>
     49 
     50 #ifndef SMALL
     51 
     52 /*
     53  * Function switch initialized by keyboard drivers.
     54  */
     55 struct kbdsw *selected_kbd;
     56 
     57 int
     58 kbdgetc()
     59 {
     60 
     61 	return ((selected_kbd != NULL) ? (*selected_kbd->k_getc)() : 0);
     62 }
     63 
     64 void
     65 kbdnmi()
     66 {
     67 
     68 	if (selected_kbd != NULL)
     69 		(*selected_kbd->k_nmi)();
     70 
     71 	/*
     72 	 * This is the only reasonable thing to do, unfortunately.
     73 	 * Simply restarting the boot block by frobbing the stack and
     74 	 * jumping to begin: doesn't properly reset variables that
     75 	 * are in the data segment.
     76 	 */
     77 	printf("\nboot interrupted, resetting...\n");
     78 	DELAY(1000000);
     79 	call_req_reboot();
     80 }
     81 
     82 void
     83 kbdinit()
     84 {
     85 	int i;
     86 
     87 	selected_kbd = NULL;
     88 
     89 	for (i = 0; kbdsw[i].k_init != NULL; i++) {
     90 		if ((*kbdsw[i].k_init)()) {
     91 			selected_kbd = &kbdsw[i];
     92 			return;
     93 		}
     94 	}
     95 }
     96 
     97 #endif /* SMALL */
     98 
     99 #endif /* ITECONSOLE */
    100