164 lines
6.4 KiB
C
164 lines
6.4 KiB
C
/* $NetBSD: cons.h,v 1.24 2005/12/11 12:20:53 christos Exp $ */
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/*
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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. 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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/*
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* Copyright (c) 1988 University of Utah.
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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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#ifndef _SYS_DEV_CONS_H_
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#define _SYS_DEV_CONS_H_
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struct consdev {
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void (*cn_probe) /* probe hardware and fill in consdev info */
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(struct consdev *);
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void (*cn_init) /* turn on as console */
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(struct consdev *);
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int (*cn_getc) /* kernel getchar interface */
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(dev_t);
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void (*cn_putc) /* kernel putchar interface */
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(dev_t, int);
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void (*cn_pollc) /* turn on and off polling */
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(dev_t, int);
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void (*cn_bell) /* ring bell */
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(dev_t, u_int, u_int, u_int);
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void (*cn_halt) /* stop device */
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(dev_t);
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void (*cn_flush) /* flush output */
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(dev_t);
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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_NULL 1 /* noop console */
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#define CN_NORMAL 2 /* device exists but is nothing special */
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#define CN_INTERNAL 3 /* "internal" bit-mapped display */
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#define CN_REMOTE 4 /* serial interface with remote bit set */
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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(void);
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int cngetc(void);
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int cngetsn(char *, int);
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void cnputc(int);
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void cnpollc(int);
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void cnbell(u_int, u_int, u_int);
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void cnflush(void);
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void cnhalt(void);
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void cnrint(void);
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void nullcnprobe(struct consdev *);
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void nullcninit(struct consdev *);
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void nullcnpollc(dev_t, int);
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void nullconsattach(int);
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/* console-specific types */
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#define dev_type_cnprobe(n) void n(struct consdev *)
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#define dev_type_cninit(n) void n(struct consdev *)
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#define dev_type_cngetc(n) int n(dev_t)
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#define dev_type_cnputc(n) void n(dev_t, int)
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#define dev_type_cnpollc(n) void n(dev_t, int)
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#define dev_type_cnbell(n) void n(dev_t, u_int, u_int, u_int);
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#define dev_type_cnhalt(n) void n(dev_t)
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#define dev_type_cnflush(n) void n(dev_t)
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#define dev_decl(n,t) __CONCAT(dev_type_,t)(__CONCAT(n,t))
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#define dev_init(n,t) __CONCAT(n,t)
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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); dev_decl(n,cnbell); \
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dev_decl(n,cnflush); dev_decl(n,cnhalt);
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#define cons_init(n) { \
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dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
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dev_init(n,cnputc), dev_init(n,cnpollc) }
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#define cons_init_bell(n) { \
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dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
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dev_init(n,cnputc), dev_init(n,cnpollc), dev_init(n,cnbell) }
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#define cons_init_halt(n) { \
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dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
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dev_init(n,cnputc), dev_init(n,cnpollc), 0, \
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dev_init(n,cnhalt) }
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#endif
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#endif /* _SYS_DEV_CONS_H_ */
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