103 lines
4.0 KiB
C
103 lines
4.0 KiB
C
/* $NetBSD: cons.h,v 1.15 1996/09/07 12:40:55 mycroft Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: cons.h 1.6 92/01/21$
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*
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* @(#)cons.h 8.1 (Berkeley) 6/10/93
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*/
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struct consdev {
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void (*cn_probe) /* probe hardware and fill in consdev info */
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__P((struct consdev *));
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void (*cn_init) /* turn on as console */
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__P((struct consdev *));
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int (*cn_getc) /* kernel getchar interface */
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__P((dev_t));
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void (*cn_putc) /* kernel putchar interface */
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__P((dev_t, int));
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void (*cn_pollc) /* turn on and off polling */
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__P((dev_t, int));
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dev_t cn_dev; /* major/minor of device */
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int cn_pri; /* pecking order; the higher the better */
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};
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/* values for cn_pri - reflect our policy for console selection */
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#define CN_DEAD 0 /* device doesn't exist */
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#define CN_NORMAL 1 /* device exists but is nothing special */
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#define CN_INTERNAL 2 /* "internal" bit-mapped display */
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#define CN_REMOTE 3 /* serial interface with remote bit set */
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/* XXX */
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#define CONSMAJOR 0
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#ifdef _KERNEL
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extern struct consdev constab[];
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extern struct consdev *cn_tab;
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void cninit __P((void));
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int cnopen __P((dev_t, int, int, struct proc *));
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int cnclose __P((dev_t, int, int, struct proc *));
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int cnread __P((dev_t, struct uio *, int));
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int cnwrite __P((dev_t, struct uio *, int));
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int cnioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
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int cnpoll __P((dev_t, int, struct proc *));
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int cngetc __P((void));
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void cnputc __P((int));
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void cnpollc __P((int));
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void cnrint __P((void));
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void nullcnpollc __P((dev_t, int));
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/* console-specific types */
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#define dev_type_cnprobe(n) void n __P((struct consdev *))
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#define dev_type_cninit(n) void n __P((struct consdev *))
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#define dev_type_cngetc(n) int n __P((dev_t))
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#define dev_type_cnputc(n) void n __P((dev_t, int))
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#define dev_type_cnpollc(n) void n __P((dev_t, int))
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#define cons_decl(n) \
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dev_decl(n,cnprobe); dev_decl(n,cninit); dev_decl(n,cngetc); \
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dev_decl(n,cnputc); dev_decl(n,cnpollc)
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#define cons_init(n) { \
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dev_init(1,n,cnprobe), dev_init(1,n,cninit), dev_init(1,n,cngetc), \
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dev_init(1,n,cnputc), dev_init(1,n,cnpollc) }
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#endif
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