68 lines
2.9 KiB
C
68 lines
2.9 KiB
C
/* $NetBSD: cons.h,v 1.7 1994/10/26 17:56:56 mycroft Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988 University of Utah.
|
|
* Copyright (c) 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* the Systems Programming Group of the University of Utah Computer
|
|
* Science Department.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: Utah $Hdr: cons.h 1.6 92/01/21$
|
|
*
|
|
* @(#)cons.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
struct consdev {
|
|
int (*cn_probe)(); /* probe hardware and fill in consdev info */
|
|
int (*cn_init)(); /* turn on as console */
|
|
int (*cn_getc)(); /* kernel getchar interface */
|
|
int (*cn_putc)(); /* kernel putchar interface */
|
|
void (*cn_pollc)(); /* turn on and off polling */
|
|
dev_t cn_dev; /* major/minor of device */
|
|
short cn_pri; /* pecking order; the higher the better */
|
|
};
|
|
|
|
/* values for cn_pri - reflect our policy for console selection */
|
|
#define CN_DEAD 0 /* device doesn't exist */
|
|
#define CN_NORMAL 1 /* device exists but is nothing special */
|
|
#define CN_INTERNAL 2 /* "internal" bit-mapped display */
|
|
#define CN_REMOTE 3 /* serial interface with remote bit set */
|
|
|
|
/* XXX */
|
|
#define CONSMAJOR 0
|
|
|
|
#ifdef KERNEL
|
|
extern struct consdev constab[];
|
|
extern struct consdev *cn_tab;
|
|
#endif
|