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/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1991 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: @(#)cons.h 7.2 (Berkeley) 5/9/91
* $Id: cons.h,v 1.12 1995/12/08 11:13:23 julian Exp $
*/
#ifndef _MACHINE_CONS_H_
#define _MACHINE_CONS_H_ 1
struct consdev;
typedef void cn_probe_t __P((struct consdev *));
typedef void cn_init_t __P((struct consdev *));
typedef int cn_getc_t __P((dev_t));
typedef int cn_checkc_t __P((dev_t));
typedef void cn_putc_t __P((dev_t, int));
#ifdef KERNEL
/*
* XXX public functions in drivers should be declared in headers produced
* by `config', not here.
*/
cn_probe_t pccnprobe;
cn_init_t pccninit;
cn_getc_t pccngetc;
cn_checkc_t pccncheckc;
cn_putc_t pccnputc;
cn_probe_t sccnprobe;
cn_init_t sccninit;
cn_getc_t sccngetc;
cn_checkc_t sccncheckc;
cn_putc_t sccnputc;
cn_probe_t siocnprobe;
cn_init_t siocninit;
cn_getc_t siocngetc;
cn_checkc_t siocncheckc;
cn_putc_t siocnputc;
#endif /* KERNEL */
struct consdev {
cn_probe_t *cn_probe;
/* probe hardware and fill in consdev info */
cn_init_t *cn_init;
/* turn on as console */
cn_getc_t *cn_getc;
/* kernel getchar interface */
cn_checkc_t *cn_checkc;
/* kernel "return char if available" interface */
cn_putc_t *cn_putc;
/* kernel putchar interface */
struct tty *cn_tp; /* tty structure for console device */
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;
extern int cons_unavail;
struct proc; struct uio;
/* other kernel entry points */
extern void cninit(void);
extern void cninit_finish(void);
extern int cngetc(void);
extern int cncheckc(void);
extern void cnputc(int);
extern int pg(const char *, ...);
#endif /* KERNEL */
#endif /* _MACHINE_CONS_H_ */
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