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getchar.c revision 1.1.10.2 
      1  1.1.10.2  skrll /*	$NetBSD: getchar.c,v 1.1.10.2 2005/11/10 13:55:09 skrll Exp $	 */
      2  1.1.10.2  skrll 
      3  1.1.10.2  skrll /*-
      4  1.1.10.2  skrll  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  1.1.10.2  skrll  * All rights reserved.
      6  1.1.10.2  skrll  *
      7  1.1.10.2  skrll  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1.10.2  skrll  * by Jonathan Stone, Michael Hitch and Simon Burge.
      9  1.1.10.2  skrll  *
     10  1.1.10.2  skrll  * Redistribution and use in source and binary forms, with or without
     11  1.1.10.2  skrll  * modification, are permitted provided that the following conditions
     12  1.1.10.2  skrll  * are met:
     13  1.1.10.2  skrll  * 1. Redistributions of source code must retain the above copyright
     14  1.1.10.2  skrll  *    notice, this list of conditions and the following disclaimer.
     15  1.1.10.2  skrll  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1.10.2  skrll  *    notice, this list of conditions and the following disclaimer in the
     17  1.1.10.2  skrll  *    documentation and/or other materials provided with the distribution.
     18  1.1.10.2  skrll  * 3. All advertising materials mentioning features or use of this software
     19  1.1.10.2  skrll  *    must display the following acknowledgement:
     20  1.1.10.2  skrll  *        This product includes software developed by the NetBSD
     21  1.1.10.2  skrll  *        Foundation, Inc. and its contributors.
     22  1.1.10.2  skrll  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.1.10.2  skrll  *    contributors may be used to endorse or promote products derived
     24  1.1.10.2  skrll  *    from this software without specific prior written permission.
     25  1.1.10.2  skrll  *
     26  1.1.10.2  skrll  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.1.10.2  skrll  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.1.10.2  skrll  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.1.10.2  skrll  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.1.10.2  skrll  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.1.10.2  skrll  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.1.10.2  skrll  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.1.10.2  skrll  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.1.10.2  skrll  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.1.10.2  skrll  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.1.10.2  skrll  * POSSIBILITY OF SUCH DAMAGE.
     37  1.1.10.2  skrll  */
     38  1.1.10.2  skrll 
     39  1.1.10.2  skrll #include <lib/libsa/stand.h>
     40  1.1.10.2  skrll #include <dev/arcbios/arcbios.h>
     41  1.1.10.2  skrll 
     42  1.1.10.2  skrll extern const struct arcbios_fv *ARCBIOS;
     43  1.1.10.2  skrll 
     44  1.1.10.2  skrll int
     45  1.1.10.2  skrll getchar(void)
     46  1.1.10.2  skrll {
     47  1.1.10.2  skrll 	char ch;
     48  1.1.10.2  skrll 	u_long count;
     49  1.1.10.2  skrll 
     50  1.1.10.2  skrll 	if ((*ARCBIOS->Read)(0, &ch, 1, &count) != ARCBIOS_ESUCCESS)
     51  1.1.10.2  skrll 		return -1;
     52  1.1.10.2  skrll 
     53  1.1.10.2  skrll 	return ch;
     54  1.1.10.2  skrll }
     55