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      1 /*	$NetBSD: cons.h,v 1.8 2011/02/08 20:20:10 rmind Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: cons.h 1.6 92/01/21$
     37  *
     38  *	@(#)cons.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 struct consdev {
     42 	char	*cn_name;	/* console device name */
     43 	int	address;	/* address */
     44 	int	speed;		/* speed(serial only) */
     45 	void	(*cn_probe)	/* probe hardware and fill in consdev info */
     46 (struct consdev *);
     47 	void	(*cn_init)	/* turn on as console */
     48 (struct consdev *);
     49 	int	(*cn_getc)	/* getchar interface */
     50 (void *);
     51 	void	(*cn_putc)	/* putchar interface */
     52 (void *, int);
     53 	int	(*cn_scan)	/* scan interface */
     54 (void *);
     55 	int	cn_pri;		/* pecking order; the higher the better */
     56 	void	*cn_dev;	/* device data tag */
     57 };
     58 
     59 /* values for cn_pri - reflect our policy for console selection */
     60 #define	CN_DEAD		0	/* device doesn't exist */
     61 #define CN_NORMAL	1	/* device exists but is nothing special */
     62 #define CN_INTERNAL	2	/* "internal" bit-mapped display */
     63 #define CN_REMOTE	3	/* serial interface with remote bit set */
     64