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kbd.c revision 1.4.8.1 
      1 /*	$NetBSD: kbd.c,v 1.4.8.1 2005/04/29 11:28:10 kent 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 FOUNDATION OR CONTRIBUTORS
     30  * BE 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 <lib/libsa/stand.h>
     48 
     49 #include <hp300/stand/common/samachdep.h>
     50 #include <hp300/stand/common/kbdvar.h>
     51 
     52 #ifndef SMALL
     53 
     54 /*
     55  * Function switch initialized by keyboard drivers.
     56  */
     57 struct kbdsw *selected_kbd;
     58 
     59 int
     60 kbdgetc(void)
     61 {
     62 
     63 	return (selected_kbd != NULL) ? (*selected_kbd->k_getc)() : 0;
     64 }
     65 
     66 void
     67 kbdnmi(void)
     68 {
     69 
     70 	if (selected_kbd != NULL)
     71 		(*selected_kbd->k_nmi)();
     72 
     73 	/*
     74 	 * This is the only reasonable thing to do, unfortunately.
     75 	 * Simply restarting the boot block by frobbing the stack and
     76 	 * jumping to begin: doesn't properly reset variables that
     77 	 * are in the data segment.
     78 	 */
     79 	printf("\nboot interrupted, resetting...\n");
     80 	DELAY(1000000);
     81 	call_req_reboot();
     82 }
     83 
     84 void
     85 kbdinit(void)
     86 {
     87 	int i;
     88 
     89 	selected_kbd = NULL;
     90 
     91 	for (i = 0; kbdsw[i].k_init != NULL; i++) {
     92 		if ((*kbdsw[i].k_init)()) {
     93 			selected_kbd = &kbdsw[i];
     94 			return;
     95 		}
     96 	}
     97 }
     98 
     99 #endif /* SMALL */
    100 
    101 #endif /* ITECONSOLE */
    102