xnu-1228.5.18.tar.gz

[apple/xnu.git] / bsd / dev / ppc / cons.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/* 
 * Copyright (c) 1987 NeXT, Inc.
 */
 
struct consdev {
	char	*cn_name;	/* name of device in dev_name_list */
	int	(*cn_probe)(void);	/* probe and fill in consdev info */
	int	(*cn_init)(void);	/* turn on as console */
	int	(*cn_getc)(void);	/* kernel getchar interface */
	int	(*cn_putc)(void);	/* 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

#include <sys/types.h>

extern	struct consdev constab[];
extern	struct consdev *cn_tab;
extern	struct tty *cn_tty;

extern struct tty	cons;
extern struct tty	*constty;		/* current console device */

int consopen(dev_t, int, int, struct proc *);
int consclose(dev_t, int, int, struct proc *);
int consread(dev_t, struct uio *, int);
int conswrite(dev_t, struct uio *, int);
int consioctl(dev_t, u_long, caddr_t, int, struct proc *);
int consselect(dev_t, int, void *, struct proc *);
int cons_getc(dev_t);
int cons_putc(dev_t, char);
int alert(int, int, const char *, const char *, int, int, int, int, int, int, int, int);
int alert_done(void);

/*
 * These really want their own header file, but this is the only one in
 * common, and the km device is the keyboard monitor, so it's technically a
 * part of the console.
 */
int kmopen(dev_t, int, int, struct proc *);
int kmclose(dev_t, int, int, struct proc *);
int kmread(dev_t, struct uio *, int);
int kmwrite(dev_t, struct uio *, int);
int kmioctl(dev_t, u_long, caddr_t, int, struct proc *);
int kmgetc(dev_t);
int kmputc(dev_t, char);

#endif